RichardTea
parent
7c9cddf786
commit
deac3a9f6c
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@ -0,0 +1,5 @@
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---
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Language: Cpp
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BasedOnStyle: Google
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PointerAlignment: Right
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...
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@ -0,0 +1,102 @@
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# Generated with cmake-format 0.5.1
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# How wide to allow formatted cmake files
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line_width = 80
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||||
|
||||
# How many spaces to tab for indent
|
||||
tab_size = 2
|
||||
|
||||
# If arglists are longer than this, break them always
|
||||
max_subargs_per_line = 10
|
||||
|
||||
# If true, separate flow control names from their parentheses with a space
|
||||
separate_ctrl_name_with_space = False
|
||||
|
||||
# If true, separate function names from parentheses with a space
|
||||
separate_fn_name_with_space = False
|
||||
|
||||
# If a statement is wrapped to more than one line, than dangle the closing
|
||||
# parenthesis on its own line
|
||||
dangle_parens = False
|
||||
|
||||
# What character to use for bulleted lists
|
||||
bullet_char = '*'
|
||||
|
||||
# What character to use as punctuation after numerals in an enumerated list
|
||||
enum_char = '.'
|
||||
|
||||
# What style line endings to use in the output.
|
||||
line_ending = u'unix'
|
||||
|
||||
# Format command names consistently as 'lower' or 'upper' case
|
||||
command_case = u'lower'
|
||||
|
||||
# Format keywords consistently as 'lower' or 'upper' case
|
||||
keyword_case = u'unchanged'
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||||
|
||||
# Specify structure for custom cmake functions
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||||
additional_commands = {
|
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"foo": {
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"flags": [
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"BAR",
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"BAZ"
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||||
],
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||||
"kwargs": {
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||||
"HEADERS": "*",
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||||
"DEPENDS": "*",
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"SOURCES": "*"
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}
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}
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}
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|
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# A list of command names which should always be wrapped
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always_wrap = []
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|
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# Specify the order of wrapping algorithms during successive reflow attempts
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algorithm_order = [0, 1, 2, 3, 4]
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|
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# If true, the argument lists which are known to be sortable will be sorted
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# lexicographicall
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autosort = False
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|
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# enable comment markup parsing and reflow
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enable_markup = True
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|
||||
# If comment markup is enabled, don't reflow the first comment block in
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# eachlistfile. Use this to preserve formatting of your
|
||||
# copyright/licensestatements.
|
||||
first_comment_is_literal = False
|
||||
|
||||
# If comment markup is enabled, don't reflow any comment block which matchesthis
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# (regex) pattern. Default is `None` (disabled).
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literal_comment_pattern = None
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||||
|
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# Regular expression to match preformat fences in comments
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# default=r'^\s*([`~]{3}[`~]*)(.*)$'
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fence_pattern = u'^\\s*([`~]{3}[`~]*)(.*)$'
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|
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# Regular expression to match rulers in comments
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# default=r'^\s*[^\w\s]{3}.*[^\w\s]{3}$'
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ruler_pattern = u'^\\s*[^\\w\\s]{3}.*[^\\w\\s]{3}$'
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|
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# If true, emit the unicode byte-order mark (BOM) at the start of the file
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emit_byteorder_mark = False
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|
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# If a comment line starts with at least this many consecutive hash characters,
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# then don't lstrip() them off. This allows for lazy hash rulers where the first
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# hash char is not separated by space
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hashruler_min_length = 10
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# If true, then insert a space between the first hash char and remaining hash
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# chars in a hash ruler, and normalize its length to fill the column
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canonicalize_hashrulers = True
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|
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# Specify the encoding of the input file. Defaults to utf-8.
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input_encoding = u'utf-8'
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|
||||
# Specify the encoding of the output file. Defaults to utf-8. Note that cmake
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# only claims to support utf-8 so be careful when using anything else
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output_encoding = u'utf-8'
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# A dictionary containing any per-command configuration overrides. Currently
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# only `command_case` is supported.
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per_command = {}
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@ -0,0 +1 @@
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docs/_site
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@ -0,0 +1 @@
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2.3.0
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@ -0,0 +1,31 @@
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cache: ccache
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language: cpp
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matrix:
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include:
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- os: linux
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dist: xenial
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compiler: clang
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- os: linux
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dist: xenial
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compiler: gcc
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- os: osx
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compiler: clang
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|
||||
addons:
|
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apt:
|
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packages:
|
||||
- cmake
|
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|
||||
script:
|
||||
# Output version info for compilers, cmake, and make
|
||||
- ${CC} -v
|
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- ${CXX} -v
|
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- cmake --version
|
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- make --version
|
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# Clone googletest
|
||||
- pushd .. && git clone https://github.com/google/googletest.git && popd
|
||||
# Configure and build
|
||||
- mkdir _travis_build && cd _travis_build
|
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- cmake -G "Unix Makefiles" -DENABLE_TESTS=ON ..
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- make -j10
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- ./draco_tests
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|
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@ -0,0 +1,7 @@
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# This is the list of Draco authors for copyright purposes.
|
||||
#
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# This does not necessarily list everyone who has contributed code, since in
|
||||
# some cases, their employer may be the copyright holder. To see the full list
|
||||
# of contributors, see the revision history in source control.
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Google Inc.
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and other contributors
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@ -0,0 +1,301 @@
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_**Contents**_
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* [CMake Basics](#cmake-basics)
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* [Mac OS X](#mac-os-x)
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* [Windows](#windows)
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* [CMake Build Configuration](#cmake-build-configuration)
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* [Debugging and Optimization](#debugging-and-optimization)
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* [Googletest Integration](#googletest-integration)
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* [Javascript Encoder/Decoder](#javascript-encoderdecoder)
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* [WebAssembly Decoder](#webassembly-decoder)
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* [WebAssembly Mesh Only Decoder](#webassembly-mesh-only-decoder)
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* [WebAssembly Point Cloud Only Decoder](#webassembly-point-cloud-only-decoder)
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* [iOS Builds](#ios-builds)
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* [Android Studio Project Integration](#android-studio-project-integration)
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* [Native Android Builds](#native-android-builds)
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* [vcpkg](#vcpkg)
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Building
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========
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For all platforms, you must first generate the project/make files and then
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compile the examples.
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|
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CMake Basics
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------------
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||||
|
||||
To generate project/make files for the default toolchain on your system, run
|
||||
`cmake` from a directory where you would like to generate build files, and pass
|
||||
it the path to your Draco repository.
|
||||
|
||||
E.g. Starting from Draco root.
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~~~~~ bash
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$ mkdir build_dir && cd build_dir
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$ cmake ../
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~~~~~
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|
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On Windows, the above command will produce Visual Studio project files for the
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||||
newest Visual Studio detected on the system. On Mac OS X and Linux systems,
|
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the above command will produce a `makefile`.
|
||||
|
||||
To control what types of projects are generated, add the `-G` parameter to the
|
||||
`cmake` command. This argument must be followed by the name of a generator.
|
||||
Running `cmake` with the `--help` argument will list the available
|
||||
generators for your system.
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||||
|
||||
Mac OS X
|
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---------
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||||
|
||||
On Mac OS X, run the following command to generate Xcode projects:
|
||||
|
||||
~~~~~ bash
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||||
$ cmake ../ -G Xcode
|
||||
~~~~~
|
||||
|
||||
Windows
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||||
-------
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||||
|
||||
On a Windows box you would run the following command to generate Visual Studio
|
||||
2019 projects:
|
||||
|
||||
~~~~~ bash
|
||||
C:\Users\nobody> cmake ../ -G "Visual Studio 16 2019" -A Win32
|
||||
~~~~~
|
||||
|
||||
To generate 64-bit Windows Visual Studio 2019 projects:
|
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|
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~~~~~ bash
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C:\Users\nobody> cmake ../ -G "Visual Studio 16 2019" -A x64
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~~~~~
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||||
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||||
|
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CMake Build Configuration
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||||
-------------------------
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||||
|
||||
Debugging and Optimization
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--------------------------
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||||
|
||||
Unlike Visual Studio and Xcode projects, the build configuration for make
|
||||
builds is controlled when you run `cmake`. The following examples demonstrate
|
||||
various build configurations.
|
||||
|
||||
Omitting the build type produces makefiles that use release build flags
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||||
by default:
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||||
|
||||
~~~~~ bash
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$ cmake ../
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||||
~~~~~
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||||
|
||||
A makefile using release (optimized) flags is produced like this:
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||||
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||||
~~~~~ bash
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$ cmake ../ -DCMAKE_BUILD_TYPE=Release
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~~~~~
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A release build with debug info can be produced as well:
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|
||||
~~~~~ bash
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$ cmake ../ -DCMAKE_BUILD_TYPE=RelWithDebInfo
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||||
~~~~~
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And your standard debug build will be produced using:
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|
||||
~~~~~ bash
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$ cmake ../ -DCMAKE_BUILD_TYPE=Debug
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||||
~~~~~
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||||
|
||||
To enable the use of sanitizers when the compiler in use supports them, set the
|
||||
sanitizer type when running CMake:
|
||||
|
||||
~~~~~ bash
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||||
$ cmake ../ -DDRACO_SANITIZE=address
|
||||
~~~~~
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||||
|
||||
Googletest Integration
|
||||
----------------------
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||||
|
||||
Draco includes testing support built using Googletest. To enable Googletest unit
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||||
test support the DRACO_TESTS cmake variable must be turned on at cmake
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||||
generation time:
|
||||
|
||||
~~~~~ bash
|
||||
$ cmake ../ -DDRACO_TESTS=ON
|
||||
~~~~~
|
||||
|
||||
When cmake is used as shown in the above example the googletest directory must
|
||||
be a sibling of the Draco repository root directory. To run the tests execute
|
||||
`draco_tests` from your build output directory.
|
||||
|
||||
WebAssembly Decoder
|
||||
-------------------
|
||||
|
||||
The WebAssembly decoder can be built using the existing cmake build file by
|
||||
passing the path the Emscripten's cmake toolchain file at cmake generation time
|
||||
in the CMAKE_TOOLCHAIN_FILE variable and enabling the WASM build option.
|
||||
In addition, the EMSCRIPTEN environment variable must be set to the local path
|
||||
of the parent directory of the Emscripten tools directory.
|
||||
|
||||
~~~~~ bash
|
||||
# Make the path to emscripten available to cmake.
|
||||
$ export EMSCRIPTEN=/path/to/emscripten/tools/parent
|
||||
|
||||
# Emscripten.cmake can be found within your Emscripten installation directory,
|
||||
# it should be the subdir: cmake/Modules/Platform/Emscripten.cmake
|
||||
$ cmake ../ -DCMAKE_TOOLCHAIN_FILE=/path/to/Emscripten.cmake -DDRACO_WASM=ON
|
||||
|
||||
# Build the WebAssembly decoder.
|
||||
$ make
|
||||
|
||||
# Run the Javascript wrapper through Closure.
|
||||
$ java -jar closure.jar --compilation_level SIMPLE --js draco_decoder.js --js_output_file draco_wasm_wrapper.js
|
||||
|
||||
~~~~~
|
||||
|
||||
WebAssembly Mesh Only Decoder
|
||||
-----------------------------
|
||||
|
||||
~~~~~ bash
|
||||
|
||||
# cmake command line for mesh only WebAssembly decoder.
|
||||
$ cmake ../ -DCMAKE_TOOLCHAIN_FILE=/path/to/Emscripten.cmake -DDRACO_WASM=ON -DDRACO_POINT_CLOUD_COMPRESSION=OFF
|
||||
|
||||
~~~~~
|
||||
|
||||
WebAssembly Point Cloud Only Decoder
|
||||
-----------------------------
|
||||
|
||||
~~~~~ bash
|
||||
|
||||
# cmake command line for point cloud only WebAssembly decoder.
|
||||
$ cmake ../ -DCMAKE_TOOLCHAIN_FILE=/path/to/Emscripten.cmake -DDRACO_WASM=ON -DDRACO_MESH_COMPRESSION=OFF
|
||||
|
||||
~~~~~
|
||||
|
||||
Javascript Encoder/Decoder
|
||||
------------------
|
||||
|
||||
The javascript encoder and decoder can be built using the existing cmake build
|
||||
file by passing the path the Emscripten's cmake toolchain file at cmake
|
||||
generation time in the CMAKE_TOOLCHAIN_FILE variable.
|
||||
In addition, the EMSCRIPTEN environment variable must be set to the local path
|
||||
of the parent directory of the Emscripten tools directory.
|
||||
|
||||
*Note* The WebAssembly decoder should be favored over the JavaScript decoder.
|
||||
|
||||
~~~~~ bash
|
||||
# Make the path to emscripten available to cmake.
|
||||
$ export EMSCRIPTEN=/path/to/emscripten/tools/parent
|
||||
|
||||
# Emscripten.cmake can be found within your Emscripten installation directory,
|
||||
# it should be the subdir: cmake/Modules/Platform/Emscripten.cmake
|
||||
$ cmake ../ -DCMAKE_TOOLCHAIN_FILE=/path/to/Emscripten.cmake
|
||||
|
||||
# Build the Javascript encoder and decoder.
|
||||
$ make
|
||||
~~~~~
|
||||
|
||||
iOS Builds
|
||||
---------------------
|
||||
These are the basic commands needed to build Draco for iOS targets.
|
||||
~~~~~ bash
|
||||
|
||||
#arm64
|
||||
$ cmake ../ -DCMAKE_TOOLCHAIN_FILE=../cmake/toolchains/arm64-ios.cmake
|
||||
$ make
|
||||
|
||||
#x86_64
|
||||
$ cmake ../ -DCMAKE_TOOLCHAIN_FILE=../cmake/toolchains/x86_64-ios.cmake
|
||||
$ make
|
||||
|
||||
#armv7
|
||||
$ cmake ../ -DCMAKE_TOOLCHAIN_FILE=../cmake/toolchains/armv7-ios.cmake
|
||||
$ make
|
||||
|
||||
#i386
|
||||
$ cmake ../ -DCMAKE_TOOLCHAIN_FILE=../cmake/toolchains/i386-ios.cmake
|
||||
$ make
|
||||
~~~~~~
|
||||
|
||||
After building for each target the libraries can be merged into a single
|
||||
universal/fat library using lipo, and then used in iOS applications.
|
||||
|
||||
|
||||
Native Android Builds
|
||||
---------------------
|
||||
|
||||
It's sometimes useful to build Draco command line tools and run them directly on
|
||||
Android devices via adb.
|
||||
|
||||
~~~~~ bash
|
||||
# This example is for armeabi-v7a.
|
||||
$ cmake ../ -DCMAKE_TOOLCHAIN_FILE=../cmake/toolchains/android.cmake \
|
||||
-DDRACO_ANDROID_NDK_PATH=path/to/ndk -DANDROID_ABI=armeabi-v7a
|
||||
$ make
|
||||
|
||||
# See the android.cmake toolchain file for additional ANDROID_ABI options and
|
||||
# other configurable Android variables.
|
||||
~~~~~
|
||||
|
||||
After building the tools they can be moved to an android device via the use of
|
||||
`adb push`, and then run within an `adb shell` instance.
|
||||
|
||||
|
||||
Android Studio Project Integration
|
||||
----------------------------------
|
||||
|
||||
Tested on Android Studio 3.5.3.
|
||||
|
||||
|
||||
Draco - Static Library
|
||||
----------------------
|
||||
|
||||
To include Draco in an existing or new Android Studio project, reference it
|
||||
from the `cmake` file of an existing native project that has a minimum SDK
|
||||
version of 18 or higher. The project must support C++11.
|
||||
To add Draco to your project:
|
||||
|
||||
1. Create a new "Native C++" project.
|
||||
|
||||
2. Add the following somewhere within the `CMakeLists.txt` for your project
|
||||
before the `add_library()` for your project's native-lib:
|
||||
|
||||
~~~~~ cmake
|
||||
# Note "/path/to/draco" must be changed to the path where you have cloned
|
||||
# the Draco sources.
|
||||
|
||||
add_subdirectory(/path/to/draco
|
||||
${CMAKE_BINARY_DIR}/draco_build)
|
||||
include_directories("${CMAKE_BINARY_DIR}" /path/to/draco)
|
||||
~~~~~
|
||||
|
||||
3. Add the library target "draco" to the `target_link_libraries()` call for
|
||||
your project's native-lib. The `target_link_libraries()` call for an
|
||||
empty activity native project looks like this after the addition of
|
||||
Draco:
|
||||
|
||||
~~~~~ cmake
|
||||
target_link_libraries( # Specifies the target library.
|
||||
native-lib
|
||||
|
||||
# Tells cmake this build depends on libdraco.
|
||||
draco
|
||||
|
||||
# Links the target library to the log library
|
||||
# included in the NDK.
|
||||
${log-lib} )
|
||||
|
||||
vcpkg
|
||||
---------------------
|
||||
You can download and install Draco using the
|
||||
[vcpkg](https://github.com/Microsoft/vcpkg/) dependency manager:
|
||||
|
||||
git clone https://github.com/Microsoft/vcpkg.git
|
||||
cd vcpkg
|
||||
./bootstrap-vcpkg.sh
|
||||
./vcpkg integrate install
|
||||
vcpkg install draco
|
||||
|
||||
The Draco port in vcpkg is kept up to date by Microsoft team members and
|
||||
community contributors. If the version is out of date, please
|
||||
[create an issue or pull request](https://github.com/Microsoft/vcpkg) on the
|
||||
vcpkg repository.
|
||||
|
|
@ -0,0 +1,106 @@
|
|||
# CMake Build System Overview
|
||||
|
||||
[TOC]
|
||||
|
||||
This document provides a general layout of the Draco CMake build system.
|
||||
|
||||
## Core Build System Files
|
||||
|
||||
These files are listed in order of interest to maintainers of the build system.
|
||||
|
||||
- `CMakeLists.txt` is the main driver of the build system. It's responsible
|
||||
for defining targets and source lists, surfacing build system options, and
|
||||
tying the components of the build system together.
|
||||
|
||||
- `cmake/draco_build_definitions.cmake` defines the macro
|
||||
`draco_set_build_definitions()`, which is called from `CMakeLists.txt` to
|
||||
configure include paths, compiler and linker flags, library settings,
|
||||
platform speficic configuration, and other build system settings that
|
||||
depend on optional build configurations.
|
||||
|
||||
- `cmake/draco_targets.cmake` defines the macros `draco_add_library()` and
|
||||
`draco_add_executable()` which are used to create all targets in the CMake
|
||||
build. These macros attempt to behave in a manner that loosely mirrors the
|
||||
blaze `cc_library()` and `cc_binary()` commands. Note that
|
||||
`draco_add_executable()` is also used for tests.
|
||||
|
||||
- `cmake/draco_emscripten.cmake` handles Emscripten SDK integration. It
|
||||
defines several Emscripten specific macros that are required to build the
|
||||
Emscripten specific targets defined in `CMakeLists.txt`.
|
||||
|
||||
- `cmake/draco_flags.cmake` defines macros related to compiler and linker
|
||||
flags. Testing macros, macros for isolating flags to specific source files,
|
||||
and the main flag configuration function for the library are defined here.
|
||||
|
||||
- `cmake/draco_options.cmake` defines macros that control optional features
|
||||
of draco, and help track draco library and build system options.
|
||||
|
||||
- `cmake/draco_install.cmake` defines the draco install target.
|
||||
|
||||
- `cmake/draco_cpu_detection.cmake` determines the optimization types to
|
||||
enable based on target system processor as reported by CMake.
|
||||
|
||||
- `cmake/draco_intrinsics.cmake` manages flags for source files that use
|
||||
intrinsics. It handles detection of whether flags are necessary, and the
|
||||
application of the flags to the sources that need them when they are
|
||||
required.
|
||||
|
||||
## Helper and Utility Files
|
||||
|
||||
- `.cmake-format.py` Defines coding style for cmake-format.
|
||||
|
||||
- `cmake/draco_helpers.cmake` defines utility macros.
|
||||
|
||||
- `cmake/draco_sanitizer.cmake` defines the `draco_configure_sanitizer()`
|
||||
macro, which implements support for `DRACO_SANITIZE`. It handles the
|
||||
compiler and linker flags necessary for using sanitizers like asan and msan.
|
||||
|
||||
- `cmake/draco_variables.cmake` defines macros for tracking and control of
|
||||
draco build system variables.
|
||||
|
||||
## Toolchain Files
|
||||
|
||||
These files help facilitate cross compiling of draco for various targets.
|
||||
|
||||
- `cmake/toolchains/aarch64-linux-gnu.cmake` provides cross compilation
|
||||
support for arm64 targets.
|
||||
|
||||
- `cmake/toolchains/android.cmake` provides cross compilation support for
|
||||
Android targets.
|
||||
|
||||
- `cmake/toolchains/arm-linux-gnueabihf.cmake` provides cross compilation
|
||||
support for armv7 targets.
|
||||
|
||||
- `cmake/toolchains/arm64-ios.cmake`, `cmake/toolchains/armv7-ios.cmake`,
|
||||
and `cmake/toolchains/armv7s-ios.cmake` provide support for iOS.
|
||||
|
||||
- `cmake/toolchains/arm64-linux-gcc.cmake` and
|
||||
`cmake/toolchains/armv7-linux-gcc.cmake` are deprecated, but remain for
|
||||
compatibility. `cmake/toolchains/android.cmake` should be used instead.
|
||||
|
||||
- `cmake/toolchains/arm64-android-ndk-libcpp.cmake`,
|
||||
`cmake/toolchains/armv7-android-ndk-libcpp.cmake`,
|
||||
`cmake/toolchains/x86-android-ndk-libcpp.cmake`, and
|
||||
`cmake/toolchains/x86_64-android-ndk-libcpp.cmake` are deprecated, but
|
||||
remain for compatibility. `cmake/toolchains/android.cmake` should be used
|
||||
instead.
|
||||
|
||||
- `cmake/toolchains/i386-ios.cmake` and `cmake/toolchains/x86_64-ios.cmake`
|
||||
provide support for the iOS simulator.
|
||||
|
||||
- `cmake/toolchains/android-ndk-common.cmake` and
|
||||
`cmake/toolchains/arm-ios-common.cmake` are support files used by other
|
||||
toolchain files.
|
||||
|
||||
## Template Files
|
||||
|
||||
These files are inputs to the CMake build and are used to generate inputs to the
|
||||
build system output by CMake.
|
||||
|
||||
- `cmake/draco-config.cmake.template` is used to produce
|
||||
draco-config.cmake. draco-config.cmake can be used by CMake to find draco
|
||||
when another CMake project depends on draco.
|
||||
|
||||
- `cmake/draco.pc.template` is used to produce draco's pkg-config file.
|
||||
Some build systems use pkg-config to configure include and library paths
|
||||
when they depend upon third party libraries like draco.
|
||||
|
|
@ -0,0 +1,958 @@
|
|||
cmake_minimum_required(VERSION 3.12 FATAL_ERROR)
|
||||
|
||||
# Draco requires C++11.
|
||||
set(CMAKE_CXX_STANDARD 11)
|
||||
project(draco C CXX)
|
||||
|
||||
if(NOT CMAKE_BUILD_TYPE)
|
||||
set(CMAKE_BUILD_TYPE Release)
|
||||
endif()
|
||||
|
||||
set(draco_root "${CMAKE_CURRENT_SOURCE_DIR}")
|
||||
set(draco_src_root "${draco_root}/src/draco")
|
||||
set(draco_build "${CMAKE_BINARY_DIR}")
|
||||
|
||||
if("${draco_root}" STREQUAL "${draco_build}")
|
||||
message(
|
||||
FATAL_ERROR "Building from within the Draco source tree is not supported.\n"
|
||||
"Hint: Run these commands\n"
|
||||
"$ rm -rf CMakeCache.txt CMakeFiles\n"
|
||||
"$ mkdir -p ../draco_build\n" "$ cd ../draco_build\n"
|
||||
"And re-run CMake from the draco_build directory.")
|
||||
endif()
|
||||
|
||||
include(CMakePackageConfigHelpers)
|
||||
include(FindPythonInterp)
|
||||
include("${draco_root}/cmake/draco_build_definitions.cmake")
|
||||
include("${draco_root}/cmake/draco_cpu_detection.cmake")
|
||||
include("${draco_root}/cmake/draco_emscripten.cmake")
|
||||
include("${draco_root}/cmake/draco_flags.cmake")
|
||||
include("${draco_root}/cmake/draco_helpers.cmake")
|
||||
include("${draco_root}/cmake/draco_install.cmake")
|
||||
include("${draco_root}/cmake/draco_intrinsics.cmake")
|
||||
include("${draco_root}/cmake/draco_options.cmake")
|
||||
include("${draco_root}/cmake/draco_sanitizer.cmake")
|
||||
include("${draco_root}/cmake/draco_targets.cmake")
|
||||
include("${draco_root}/cmake/draco_tests.cmake")
|
||||
include("${draco_root}/cmake/draco_variables.cmake")
|
||||
|
||||
# C++ and linker flags.
|
||||
draco_track_configuration_variable(DRACO_CXX_FLAGS)
|
||||
draco_track_configuration_variable(DRACO_EXE_LINKER_FLAGS)
|
||||
|
||||
# Sanitizer integration.
|
||||
draco_track_configuration_variable(DRACO_SANITIZE)
|
||||
|
||||
# Generated source file directory.
|
||||
draco_track_configuration_variable(DRACO_GENERATED_SOURCES_DIRECTORY)
|
||||
|
||||
# Controls use of std::mutex and absl::Mutex in ThreadPool.
|
||||
draco_track_configuration_variable(DRACO_THREADPOOL_USE_STD_MUTEX)
|
||||
|
||||
if(DRACO_VERBOSE)
|
||||
draco_dump_cmake_flag_variables()
|
||||
draco_dump_tracked_configuration_variables()
|
||||
draco_dump_options()
|
||||
endif()
|
||||
|
||||
# Compiler/linker flags must be lists, but come in from the environment as
|
||||
# strings. Break them up:
|
||||
if(NOT "${DRACO_CXX_FLAGS}" STREQUAL "")
|
||||
separate_arguments(DRACO_CXX_FLAGS)
|
||||
endif()
|
||||
if(NOT "${DRACO_EXE_LINKER_FLAGS}" STREQUAL "")
|
||||
separate_arguments(DRACO_EXE_LINKER_FLAGS)
|
||||
endif()
|
||||
|
||||
draco_reset_target_lists()
|
||||
draco_setup_options()
|
||||
draco_set_build_definitions()
|
||||
draco_set_cxx_flags()
|
||||
draco_generate_features_h()
|
||||
|
||||
# Draco source file listing variables.
|
||||
list(APPEND draco_attributes_sources
|
||||
"${draco_src_root}/attributes/attribute_octahedron_transform.cc"
|
||||
"${draco_src_root}/attributes/attribute_octahedron_transform.h"
|
||||
"${draco_src_root}/attributes/attribute_quantization_transform.cc"
|
||||
"${draco_src_root}/attributes/attribute_quantization_transform.h"
|
||||
"${draco_src_root}/attributes/attribute_transform.cc"
|
||||
"${draco_src_root}/attributes/attribute_transform.h"
|
||||
"${draco_src_root}/attributes/attribute_transform_data.h"
|
||||
"${draco_src_root}/attributes/attribute_transform_type.h"
|
||||
"${draco_src_root}/attributes/geometry_attribute.cc"
|
||||
"${draco_src_root}/attributes/geometry_attribute.h"
|
||||
"${draco_src_root}/attributes/geometry_indices.h"
|
||||
"${draco_src_root}/attributes/point_attribute.cc"
|
||||
"${draco_src_root}/attributes/point_attribute.h")
|
||||
|
||||
list(
|
||||
APPEND
|
||||
draco_compression_attributes_dec_sources
|
||||
"${draco_src_root}/compression/attributes/attributes_decoder.cc"
|
||||
"${draco_src_root}/compression/attributes/attributes_decoder.h"
|
||||
"${draco_src_root}/compression/attributes/kd_tree_attributes_decoder.cc"
|
||||
"${draco_src_root}/compression/attributes/kd_tree_attributes_decoder.h"
|
||||
"${draco_src_root}/compression/attributes/kd_tree_attributes_shared.h"
|
||||
"${draco_src_root}/compression/attributes/mesh_attribute_indices_encoding_data.h"
|
||||
"${draco_src_root}/compression/attributes/normal_compression_utils.h"
|
||||
"${draco_src_root}/compression/attributes/point_d_vector.h"
|
||||
"${draco_src_root}/compression/attributes/sequential_attribute_decoder.cc"
|
||||
"${draco_src_root}/compression/attributes/sequential_attribute_decoder.h"
|
||||
"${draco_src_root}/compression/attributes/sequential_attribute_decoders_controller.cc"
|
||||
"${draco_src_root}/compression/attributes/sequential_attribute_decoders_controller.h"
|
||||
"${draco_src_root}/compression/attributes/sequential_integer_attribute_decoder.cc"
|
||||
"${draco_src_root}/compression/attributes/sequential_integer_attribute_decoder.h"
|
||||
"${draco_src_root}/compression/attributes/sequential_normal_attribute_decoder.cc"
|
||||
"${draco_src_root}/compression/attributes/sequential_normal_attribute_decoder.h"
|
||||
"${draco_src_root}/compression/attributes/sequential_quantization_attribute_decoder.cc"
|
||||
"${draco_src_root}/compression/attributes/sequential_quantization_attribute_decoder.h"
|
||||
)
|
||||
|
||||
list(
|
||||
APPEND
|
||||
draco_compression_attributes_enc_sources
|
||||
"${draco_src_root}/compression/attributes/attributes_encoder.cc"
|
||||
"${draco_src_root}/compression/attributes/attributes_encoder.h"
|
||||
"${draco_src_root}/compression/attributes/kd_tree_attributes_encoder.cc"
|
||||
"${draco_src_root}/compression/attributes/kd_tree_attributes_encoder.h"
|
||||
"${draco_src_root}/compression/attributes/linear_sequencer.h"
|
||||
"${draco_src_root}/compression/attributes/points_sequencer.h"
|
||||
"${draco_src_root}/compression/attributes/sequential_attribute_encoder.cc"
|
||||
"${draco_src_root}/compression/attributes/sequential_attribute_encoder.h"
|
||||
"${draco_src_root}/compression/attributes/sequential_attribute_encoders_controller.cc"
|
||||
"${draco_src_root}/compression/attributes/sequential_attribute_encoders_controller.h"
|
||||
"${draco_src_root}/compression/attributes/sequential_integer_attribute_encoder.cc"
|
||||
"${draco_src_root}/compression/attributes/sequential_integer_attribute_encoder.h"
|
||||
"${draco_src_root}/compression/attributes/sequential_normal_attribute_encoder.cc"
|
||||
"${draco_src_root}/compression/attributes/sequential_normal_attribute_encoder.h"
|
||||
"${draco_src_root}/compression/attributes/sequential_quantization_attribute_encoder.cc"
|
||||
"${draco_src_root}/compression/attributes/sequential_quantization_attribute_encoder.h"
|
||||
)
|
||||
|
||||
|
||||
list(
|
||||
APPEND
|
||||
draco_compression_attributes_pred_schemes_dec_sources
|
||||
"${draco_src_root}/compression/attributes/prediction_schemes/mesh_prediction_scheme_constrained_multi_parallelogram_decoder.h"
|
||||
"${draco_src_root}/compression/attributes/prediction_schemes/mesh_prediction_scheme_constrained_multi_parallelogram_shared.h"
|
||||
"${draco_src_root}/compression/attributes/prediction_schemes/mesh_prediction_scheme_data.h"
|
||||
"${draco_src_root}/compression/attributes/prediction_schemes/mesh_prediction_scheme_decoder.h"
|
||||
"${draco_src_root}/compression/attributes/prediction_schemes/mesh_prediction_scheme_geometric_normal_decoder.h"
|
||||
"${draco_src_root}/compression/attributes/prediction_schemes/mesh_prediction_scheme_geometric_normal_predictor_area.h"
|
||||
"${draco_src_root}/compression/attributes/prediction_schemes/mesh_prediction_scheme_geometric_normal_predictor_base.h"
|
||||
"${draco_src_root}/compression/attributes/prediction_schemes/mesh_prediction_scheme_multi_parallelogram_decoder.h"
|
||||
"${draco_src_root}/compression/attributes/prediction_schemes/mesh_prediction_scheme_parallelogram_encoder.h"
|
||||
"${draco_src_root}/compression/attributes/prediction_schemes/mesh_prediction_scheme_parallelogram_shared.h"
|
||||
"${draco_src_root}/compression/attributes/prediction_schemes/mesh_prediction_scheme_tex_coords_decoder.h"
|
||||
"${draco_src_root}/compression/attributes/prediction_schemes/mesh_prediction_scheme_tex_coords_portable_decoder.h"
|
||||
"${draco_src_root}/compression/attributes/prediction_schemes/mesh_prediction_scheme_tex_coords_portable_predictor.h"
|
||||
"${draco_src_root}/compression/attributes/prediction_schemes/prediction_scheme_decoder.h"
|
||||
"${draco_src_root}/compression/attributes/prediction_schemes/prediction_scheme_decoder_factory.h"
|
||||
"${draco_src_root}/compression/attributes/prediction_schemes/prediction_scheme_decoder_interface.h"
|
||||
"${draco_src_root}/compression/attributes/prediction_schemes/prediction_scheme_decoding_transform.h"
|
||||
"${draco_src_root}/compression/attributes/prediction_schemes/prediction_scheme_delta_decoder.h"
|
||||
"${draco_src_root}/compression/attributes/prediction_schemes/prediction_scheme_factory.h"
|
||||
"${draco_src_root}/compression/attributes/prediction_schemes/prediction_scheme_interface.h"
|
||||
"${draco_src_root}/compression/attributes/prediction_schemes/prediction_scheme_normal_octahedron_canonicalized_decoding_transform.h"
|
||||
"${draco_src_root}/compression/attributes/prediction_schemes/prediction_scheme_normal_octahedron_canonicalized_transform_base.h"
|
||||
"${draco_src_root}/compression/attributes/prediction_schemes/prediction_scheme_normal_octahedron_decoding_transform.h"
|
||||
"${draco_src_root}/compression/attributes/prediction_schemes/prediction_scheme_normal_octahedron_transform_base.h"
|
||||
"${draco_src_root}/compression/attributes/prediction_schemes/prediction_scheme_wrap_decoding_transform.h"
|
||||
"${draco_src_root}/compression/attributes/prediction_schemes/prediction_scheme_wrap_transform_base.h"
|
||||
)
|
||||
|
||||
list(
|
||||
APPEND
|
||||
draco_compression_attributes_pred_schemes_enc_sources
|
||||
"${draco_src_root}/compression/attributes/prediction_schemes/mesh_prediction_scheme_constrained_multi_parallelogram_encoder.h"
|
||||
"${draco_src_root}/compression/attributes/prediction_schemes/mesh_prediction_scheme_constrained_multi_parallelogram_shared.h"
|
||||
"${draco_src_root}/compression/attributes/prediction_schemes/mesh_prediction_scheme_data.h"
|
||||
"${draco_src_root}/compression/attributes/prediction_schemes/mesh_prediction_scheme_encoder.h"
|
||||
"${draco_src_root}/compression/attributes/prediction_schemes/mesh_prediction_scheme_geometric_normal_encoder.h"
|
||||
"${draco_src_root}/compression/attributes/prediction_schemes/mesh_prediction_scheme_geometric_normal_predictor_area.h"
|
||||
"${draco_src_root}/compression/attributes/prediction_schemes/mesh_prediction_scheme_geometric_normal_predictor_base.h"
|
||||
"${draco_src_root}/compression/attributes/prediction_schemes/mesh_prediction_scheme_multi_parallelogram_encoder.h"
|
||||
"${draco_src_root}/compression/attributes/prediction_schemes/mesh_prediction_scheme_parallelogram_encoder.h"
|
||||
"${draco_src_root}/compression/attributes/prediction_schemes/mesh_prediction_scheme_parallelogram_shared.h"
|
||||
"${draco_src_root}/compression/attributes/prediction_schemes/mesh_prediction_scheme_tex_coords_encoder.h"
|
||||
"${draco_src_root}/compression/attributes/prediction_schemes/mesh_prediction_scheme_tex_coords_portable_encoder.h"
|
||||
"${draco_src_root}/compression/attributes/prediction_schemes/mesh_prediction_scheme_tex_coords_portable_predictor.h"
|
||||
"${draco_src_root}/compression/attributes/prediction_schemes/prediction_scheme_delta_encoder.h"
|
||||
"${draco_src_root}/compression/attributes/prediction_schemes/prediction_scheme_encoder.h"
|
||||
"${draco_src_root}/compression/attributes/prediction_schemes/prediction_scheme_encoder_factory.cc"
|
||||
"${draco_src_root}/compression/attributes/prediction_schemes/prediction_scheme_encoder_factory.h"
|
||||
"${draco_src_root}/compression/attributes/prediction_schemes/prediction_scheme_encoder_interface.h"
|
||||
"${draco_src_root}/compression/attributes/prediction_schemes/prediction_scheme_encoding_transform.h"
|
||||
"${draco_src_root}/compression/attributes/prediction_schemes/prediction_scheme_factory.h"
|
||||
"${draco_src_root}/compression/attributes/prediction_schemes/prediction_scheme_interface.h"
|
||||
"${draco_src_root}/compression/attributes/prediction_schemes/prediction_scheme_normal_octahedron_canonicalized_encoding_transform.h"
|
||||
"${draco_src_root}/compression/attributes/prediction_schemes/prediction_scheme_normal_octahedron_canonicalized_transform_base.h"
|
||||
"${draco_src_root}/compression/attributes/prediction_schemes/prediction_scheme_normal_octahedron_encoding_transform.h"
|
||||
"${draco_src_root}/compression/attributes/prediction_schemes/prediction_scheme_normal_octahedron_transform_base.h"
|
||||
"${draco_src_root}/compression/attributes/prediction_schemes/prediction_scheme_wrap_encoding_transform.h"
|
||||
"${draco_src_root}/compression/attributes/prediction_schemes/prediction_scheme_wrap_transform_base.h"
|
||||
)
|
||||
|
||||
list(
|
||||
APPEND
|
||||
draco_compression_bit_coders_sources
|
||||
"${draco_src_root}/compression/bit_coders/adaptive_rans_bit_coding_shared.h"
|
||||
"${draco_src_root}/compression/bit_coders/adaptive_rans_bit_decoder.cc"
|
||||
"${draco_src_root}/compression/bit_coders/adaptive_rans_bit_decoder.h"
|
||||
"${draco_src_root}/compression/bit_coders/adaptive_rans_bit_encoder.cc"
|
||||
"${draco_src_root}/compression/bit_coders/adaptive_rans_bit_encoder.h"
|
||||
"${draco_src_root}/compression/bit_coders/direct_bit_decoder.cc"
|
||||
"${draco_src_root}/compression/bit_coders/direct_bit_decoder.h"
|
||||
"${draco_src_root}/compression/bit_coders/direct_bit_encoder.cc"
|
||||
"${draco_src_root}/compression/bit_coders/direct_bit_encoder.h"
|
||||
"${draco_src_root}/compression/bit_coders/folded_integer_bit_decoder.h"
|
||||
"${draco_src_root}/compression/bit_coders/folded_integer_bit_encoder.h"
|
||||
"${draco_src_root}/compression/bit_coders/rans_bit_decoder.cc"
|
||||
"${draco_src_root}/compression/bit_coders/rans_bit_decoder.h"
|
||||
"${draco_src_root}/compression/bit_coders/rans_bit_encoder.cc"
|
||||
"${draco_src_root}/compression/bit_coders/rans_bit_encoder.h"
|
||||
"${draco_src_root}/compression/bit_coders/symbol_bit_decoder.cc"
|
||||
"${draco_src_root}/compression/bit_coders/symbol_bit_decoder.h"
|
||||
"${draco_src_root}/compression/bit_coders/symbol_bit_encoder.cc"
|
||||
"${draco_src_root}/compression/bit_coders/symbol_bit_encoder.h")
|
||||
|
||||
list(APPEND draco_enc_config_sources
|
||||
"${draco_src_root}/compression/config/compression_shared.h"
|
||||
"${draco_src_root}/compression/config/draco_options.h"
|
||||
"${draco_src_root}/compression/config/encoder_options.h"
|
||||
"${draco_src_root}/compression/config/encoding_features.h")
|
||||
|
||||
list(APPEND draco_dec_config_sources
|
||||
"${draco_src_root}/compression/config/compression_shared.h"
|
||||
"${draco_src_root}/compression/config/decoder_options.h"
|
||||
"${draco_src_root}/compression/config/draco_options.h")
|
||||
|
||||
list(APPEND draco_compression_decode_sources
|
||||
"${draco_src_root}/compression/decode.cc"
|
||||
"${draco_src_root}/compression/decode.h")
|
||||
|
||||
list(APPEND draco_compression_encode_sources
|
||||
"${draco_src_root}/compression/encode.cc"
|
||||
"${draco_src_root}/compression/encode.h"
|
||||
"${draco_src_root}/compression/encode_base.h"
|
||||
"${draco_src_root}/compression/expert_encode.cc"
|
||||
"${draco_src_root}/compression/expert_encode.h")
|
||||
|
||||
list(
|
||||
APPEND
|
||||
draco_compression_mesh_traverser_sources
|
||||
"${draco_src_root}/compression/mesh/traverser/depth_first_traverser.h"
|
||||
"${draco_src_root}/compression/mesh/traverser/max_prediction_degree_traverser.h"
|
||||
"${draco_src_root}/compression/mesh/traverser/mesh_attribute_indices_encoding_observer.h"
|
||||
"${draco_src_root}/compression/mesh/traverser/mesh_traversal_sequencer.h"
|
||||
"${draco_src_root}/compression/mesh/traverser/traverser_base.h")
|
||||
|
||||
list(
|
||||
APPEND
|
||||
draco_compression_mesh_dec_sources
|
||||
"${draco_src_root}/compression/mesh/mesh_decoder.cc"
|
||||
"${draco_src_root}/compression/mesh/mesh_decoder.h"
|
||||
"${draco_src_root}/compression/mesh/mesh_edgebreaker_decoder.cc"
|
||||
"${draco_src_root}/compression/mesh/mesh_edgebreaker_decoder.h"
|
||||
"${draco_src_root}/compression/mesh/mesh_edgebreaker_decoder_impl.cc"
|
||||
"${draco_src_root}/compression/mesh/mesh_edgebreaker_decoder_impl.h"
|
||||
"${draco_src_root}/compression/mesh/mesh_edgebreaker_decoder_impl_interface.h"
|
||||
"${draco_src_root}/compression/mesh/mesh_edgebreaker_shared.h"
|
||||
"${draco_src_root}/compression/mesh/mesh_edgebreaker_traversal_decoder.h"
|
||||
"${draco_src_root}/compression/mesh/mesh_edgebreaker_traversal_predictive_decoder.h"
|
||||
"${draco_src_root}/compression/mesh/mesh_edgebreaker_traversal_valence_decoder.h"
|
||||
"${draco_src_root}/compression/mesh/mesh_sequential_decoder.cc"
|
||||
"${draco_src_root}/compression/mesh/mesh_sequential_decoder.h")
|
||||
|
||||
list(
|
||||
APPEND
|
||||
draco_compression_mesh_enc_sources
|
||||
"${draco_src_root}/compression/mesh/mesh_edgebreaker_encoder.cc"
|
||||
"${draco_src_root}/compression/mesh/mesh_edgebreaker_encoder.h"
|
||||
"${draco_src_root}/compression/mesh/mesh_edgebreaker_encoder_impl.cc"
|
||||
"${draco_src_root}/compression/mesh/mesh_edgebreaker_encoder_impl.h"
|
||||
"${draco_src_root}/compression/mesh/mesh_edgebreaker_encoder_impl_interface.h"
|
||||
"${draco_src_root}/compression/mesh/mesh_edgebreaker_shared.h"
|
||||
"${draco_src_root}/compression/mesh/mesh_edgebreaker_traversal_encoder.h"
|
||||
"${draco_src_root}/compression/mesh/mesh_edgebreaker_traversal_predictive_encoder.h"
|
||||
"${draco_src_root}/compression/mesh/mesh_edgebreaker_traversal_valence_encoder.h"
|
||||
"${draco_src_root}/compression/mesh/mesh_encoder.cc"
|
||||
"${draco_src_root}/compression/mesh/mesh_encoder.h"
|
||||
"${draco_src_root}/compression/mesh/mesh_sequential_encoder.cc"
|
||||
"${draco_src_root}/compression/mesh/mesh_sequential_encoder.h")
|
||||
|
||||
list(
|
||||
APPEND
|
||||
draco_compression_point_cloud_dec_sources
|
||||
"${draco_src_root}/compression/point_cloud/point_cloud_decoder.cc"
|
||||
"${draco_src_root}/compression/point_cloud/point_cloud_decoder.h"
|
||||
"${draco_src_root}/compression/point_cloud/point_cloud_kd_tree_decoder.cc"
|
||||
"${draco_src_root}/compression/point_cloud/point_cloud_kd_tree_decoder.h"
|
||||
"${draco_src_root}/compression/point_cloud/point_cloud_sequential_decoder.cc"
|
||||
"${draco_src_root}/compression/point_cloud/point_cloud_sequential_decoder.h"
|
||||
)
|
||||
|
||||
list(
|
||||
APPEND
|
||||
draco_compression_point_cloud_enc_sources
|
||||
"${draco_src_root}/compression/point_cloud/point_cloud_encoder.cc"
|
||||
"${draco_src_root}/compression/point_cloud/point_cloud_encoder.h"
|
||||
"${draco_src_root}/compression/point_cloud/point_cloud_kd_tree_encoder.cc"
|
||||
"${draco_src_root}/compression/point_cloud/point_cloud_kd_tree_encoder.h"
|
||||
"${draco_src_root}/compression/point_cloud/point_cloud_sequential_encoder.cc"
|
||||
"${draco_src_root}/compression/point_cloud/point_cloud_sequential_encoder.h"
|
||||
)
|
||||
|
||||
list(APPEND draco_compression_entropy_sources
|
||||
"${draco_src_root}/compression/entropy/ans.h"
|
||||
"${draco_src_root}/compression/entropy/rans_symbol_coding.h"
|
||||
"${draco_src_root}/compression/entropy/rans_symbol_decoder.h"
|
||||
"${draco_src_root}/compression/entropy/rans_symbol_encoder.h"
|
||||
"${draco_src_root}/compression/entropy/shannon_entropy.cc"
|
||||
"${draco_src_root}/compression/entropy/shannon_entropy.h"
|
||||
"${draco_src_root}/compression/entropy/symbol_decoding.cc"
|
||||
"${draco_src_root}/compression/entropy/symbol_decoding.h"
|
||||
"${draco_src_root}/compression/entropy/symbol_encoding.cc"
|
||||
"${draco_src_root}/compression/entropy/symbol_encoding.h")
|
||||
|
||||
list(APPEND draco_core_sources
|
||||
"${draco_src_root}/core/bit_utils.cc"
|
||||
"${draco_src_root}/core/bit_utils.h"
|
||||
"${draco_src_root}/core/bounding_box.cc"
|
||||
"${draco_src_root}/core/bounding_box.h"
|
||||
"${draco_src_root}/core/cycle_timer.cc"
|
||||
"${draco_src_root}/core/cycle_timer.h"
|
||||
"${draco_src_root}/core/data_buffer.cc"
|
||||
"${draco_src_root}/core/data_buffer.h"
|
||||
"${draco_src_root}/core/decoder_buffer.cc"
|
||||
"${draco_src_root}/core/decoder_buffer.h"
|
||||
"${draco_src_root}/core/divide.cc"
|
||||
"${draco_src_root}/core/divide.h"
|
||||
"${draco_src_root}/core/draco_index_type.h"
|
||||
"${draco_src_root}/core/draco_index_type_vector.h"
|
||||
"${draco_src_root}/core/draco_types.cc"
|
||||
"${draco_src_root}/core/draco_types.h"
|
||||
"${draco_src_root}/core/encoder_buffer.cc"
|
||||
"${draco_src_root}/core/encoder_buffer.h"
|
||||
"${draco_src_root}/core/hash_utils.cc"
|
||||
"${draco_src_root}/core/hash_utils.h"
|
||||
"${draco_src_root}/core/macros.h"
|
||||
"${draco_src_root}/core/math_utils.h"
|
||||
"${draco_src_root}/core/options.cc"
|
||||
"${draco_src_root}/core/options.h"
|
||||
"${draco_src_root}/core/quantization_utils.cc"
|
||||
"${draco_src_root}/core/quantization_utils.h"
|
||||
"${draco_src_root}/core/status.h"
|
||||
"${draco_src_root}/core/status_or.h"
|
||||
"${draco_src_root}/core/varint_decoding.h"
|
||||
"${draco_src_root}/core/varint_encoding.h"
|
||||
"${draco_src_root}/core/vector_d.h")
|
||||
|
||||
list(APPEND draco_io_sources
|
||||
"${draco_src_root}/io/file_reader_factory.cc"
|
||||
"${draco_src_root}/io/file_reader_factory.h"
|
||||
"${draco_src_root}/io/file_reader_interface.h"
|
||||
"${draco_src_root}/io/file_utils.cc"
|
||||
"${draco_src_root}/io/file_utils.h"
|
||||
"${draco_src_root}/io/file_writer_factory.cc"
|
||||
"${draco_src_root}/io/file_writer_factory.h"
|
||||
"${draco_src_root}/io/file_writer_interface.h"
|
||||
"${draco_src_root}/io/file_writer_utils.h"
|
||||
"${draco_src_root}/io/file_writer_utils.cc"
|
||||
"${draco_src_root}/io/mesh_io.cc"
|
||||
"${draco_src_root}/io/mesh_io.h"
|
||||
"${draco_src_root}/io/obj_decoder.cc"
|
||||
"${draco_src_root}/io/obj_decoder.h"
|
||||
"${draco_src_root}/io/obj_encoder.cc"
|
||||
"${draco_src_root}/io/obj_encoder.h"
|
||||
"${draco_src_root}/io/parser_utils.cc"
|
||||
"${draco_src_root}/io/parser_utils.h"
|
||||
"${draco_src_root}/io/ply_decoder.cc"
|
||||
"${draco_src_root}/io/ply_decoder.h"
|
||||
"${draco_src_root}/io/ply_encoder.cc"
|
||||
"${draco_src_root}/io/ply_encoder.h"
|
||||
"${draco_src_root}/io/ply_property_reader.h"
|
||||
"${draco_src_root}/io/ply_property_writer.h"
|
||||
"${draco_src_root}/io/ply_reader.cc"
|
||||
"${draco_src_root}/io/ply_reader.h"
|
||||
"${draco_src_root}/io/point_cloud_io.cc"
|
||||
"${draco_src_root}/io/point_cloud_io.h"
|
||||
"${draco_src_root}/io/stdio_file_reader.cc"
|
||||
"${draco_src_root}/io/stdio_file_reader.h"
|
||||
"${draco_src_root}/io/stdio_file_writer.cc"
|
||||
"${draco_src_root}/io/stdio_file_writer.h")
|
||||
|
||||
list(APPEND draco_mesh_sources
|
||||
"${draco_src_root}/mesh/corner_table.cc"
|
||||
"${draco_src_root}/mesh/corner_table.h"
|
||||
"${draco_src_root}/mesh/corner_table_iterators.h"
|
||||
"${draco_src_root}/mesh/mesh.cc"
|
||||
"${draco_src_root}/mesh/mesh.h"
|
||||
"${draco_src_root}/mesh/mesh_are_equivalent.cc"
|
||||
"${draco_src_root}/mesh/mesh_are_equivalent.h"
|
||||
"${draco_src_root}/mesh/mesh_attribute_corner_table.cc"
|
||||
"${draco_src_root}/mesh/mesh_attribute_corner_table.h"
|
||||
"${draco_src_root}/mesh/mesh_cleanup.cc"
|
||||
"${draco_src_root}/mesh/mesh_cleanup.h"
|
||||
"${draco_src_root}/mesh/mesh_misc_functions.cc"
|
||||
"${draco_src_root}/mesh/mesh_misc_functions.h"
|
||||
"${draco_src_root}/mesh/mesh_stripifier.cc"
|
||||
"${draco_src_root}/mesh/mesh_stripifier.h"
|
||||
"${draco_src_root}/mesh/triangle_soup_mesh_builder.cc"
|
||||
"${draco_src_root}/mesh/triangle_soup_mesh_builder.h"
|
||||
"${draco_src_root}/mesh/valence_cache.h")
|
||||
|
||||
list(APPEND draco_point_cloud_sources
|
||||
"${draco_src_root}/point_cloud/point_cloud.cc"
|
||||
"${draco_src_root}/point_cloud/point_cloud.h"
|
||||
"${draco_src_root}/point_cloud/point_cloud_builder.cc"
|
||||
"${draco_src_root}/point_cloud/point_cloud_builder.h")
|
||||
|
||||
list(
|
||||
APPEND
|
||||
draco_points_common_sources
|
||||
"${draco_src_root}/compression/point_cloud/algorithms/point_cloud_compression_method.h"
|
||||
"${draco_src_root}/compression/point_cloud/algorithms/point_cloud_types.h"
|
||||
"${draco_src_root}/compression/point_cloud/algorithms/quantize_points_3.h"
|
||||
"${draco_src_root}/compression/point_cloud/algorithms/queuing_policy.h")
|
||||
|
||||
list(
|
||||
APPEND
|
||||
draco_points_dec_sources
|
||||
"${draco_src_root}/compression/point_cloud/algorithms/dynamic_integer_points_kd_tree_decoder.cc"
|
||||
"${draco_src_root}/compression/point_cloud/algorithms/dynamic_integer_points_kd_tree_decoder.h"
|
||||
"${draco_src_root}/compression/point_cloud/algorithms/float_points_tree_decoder.cc"
|
||||
"${draco_src_root}/compression/point_cloud/algorithms/float_points_tree_decoder.h"
|
||||
)
|
||||
|
||||
list(
|
||||
APPEND
|
||||
draco_points_enc_sources
|
||||
"${draco_src_root}/compression/point_cloud/algorithms/dynamic_integer_points_kd_tree_encoder.cc"
|
||||
"${draco_src_root}/compression/point_cloud/algorithms/dynamic_integer_points_kd_tree_encoder.h"
|
||||
"${draco_src_root}/compression/point_cloud/algorithms/float_points_tree_encoder.cc"
|
||||
"${draco_src_root}/compression/point_cloud/algorithms/float_points_tree_encoder.h"
|
||||
)
|
||||
|
||||
list(APPEND draco_metadata_sources
|
||||
"${draco_src_root}/metadata/geometry_metadata.cc"
|
||||
"${draco_src_root}/metadata/geometry_metadata.h"
|
||||
"${draco_src_root}/metadata/metadata.cc"
|
||||
"${draco_src_root}/metadata/metadata.h")
|
||||
|
||||
list(APPEND draco_metadata_enc_sources
|
||||
"${draco_src_root}/metadata/metadata_encoder.cc"
|
||||
"${draco_src_root}/metadata/metadata_encoder.h")
|
||||
|
||||
list(APPEND draco_metadata_dec_sources
|
||||
"${draco_src_root}/metadata/metadata_decoder.cc"
|
||||
"${draco_src_root}/metadata/metadata_decoder.h")
|
||||
|
||||
list(APPEND draco_animation_sources
|
||||
"${draco_src_root}/animation/keyframe_animation.cc"
|
||||
"${draco_src_root}/animation/keyframe_animation.h")
|
||||
|
||||
list(APPEND draco_animation_enc_sources
|
||||
"${draco_src_root}/animation/keyframe_animation_encoder.cc"
|
||||
"${draco_src_root}/animation/keyframe_animation_encoder.h")
|
||||
|
||||
list(APPEND draco_animation_dec_sources
|
||||
"${draco_src_root}/animation/keyframe_animation_decoder.cc"
|
||||
"${draco_src_root}/animation/keyframe_animation_decoder.h")
|
||||
|
||||
list(
|
||||
APPEND draco_js_dec_sources
|
||||
"${draco_src_root}/javascript/emscripten/decoder_webidl_wrapper.cc"
|
||||
"${draco_src_root}/javascript/emscripten/draco_decoder_glue_wrapper.cc"
|
||||
)
|
||||
|
||||
list(
|
||||
APPEND draco_js_enc_sources
|
||||
"${draco_src_root}/javascript/emscripten/draco_encoder_glue_wrapper.cc"
|
||||
"${draco_src_root}/javascript/emscripten/encoder_webidl_wrapper.cc")
|
||||
|
||||
list(
|
||||
APPEND
|
||||
draco_animation_js_dec_sources
|
||||
"${draco_src_root}/javascript/emscripten/animation_decoder_webidl_wrapper.cc"
|
||||
"${draco_src_root}/javascript/emscripten/draco_animation_decoder_glue_wrapper.cc"
|
||||
)
|
||||
|
||||
list(
|
||||
APPEND
|
||||
draco_animation_js_enc_sources
|
||||
"${draco_src_root}/javascript/emscripten/animation_encoder_webidl_wrapper.cc"
|
||||
"${draco_src_root}/javascript/emscripten/draco_animation_encoder_glue_wrapper.cc"
|
||||
)
|
||||
|
||||
list(APPEND draco_unity_plug_sources
|
||||
"${draco_src_root}/unity/draco_unity_plugin.cc"
|
||||
"${draco_src_root}/unity/draco_unity_plugin.h")
|
||||
|
||||
list(APPEND draco_maya_plug_sources
|
||||
"${draco_src_root}/maya/draco_maya_plugin.cc"
|
||||
"${draco_src_root}/maya/draco_maya_plugin.h")
|
||||
|
||||
#
|
||||
# Draco targets.
|
||||
#
|
||||
if(EMSCRIPTEN AND DRACO_JS_GLUE)
|
||||
# Draco decoder and encoder "executable" targets in various flavors for
|
||||
# Emsscripten.
|
||||
list(APPEND draco_decoder_src
|
||||
${draco_attributes_sources}
|
||||
${draco_compression_attributes_dec_sources}
|
||||
${draco_compression_attributes_pred_schemes_dec_sources}
|
||||
${draco_compression_bit_coders_sources}
|
||||
${draco_compression_decode_sources}
|
||||
${draco_compression_entropy_sources}
|
||||
${draco_compression_mesh_traverser_sources}
|
||||
${draco_compression_mesh_dec_sources}
|
||||
${draco_compression_point_cloud_dec_sources}
|
||||
${draco_core_sources}
|
||||
${draco_dec_config_sources}
|
||||
${draco_js_dec_sources}
|
||||
${draco_mesh_sources}
|
||||
${draco_metadata_dec_sources}
|
||||
${draco_metadata_sources}
|
||||
${draco_point_cloud_sources}
|
||||
${draco_points_dec_sources})
|
||||
|
||||
list(APPEND draco_encoder_src
|
||||
${draco_attributes_sources}
|
||||
${draco_compression_attributes_enc_sources}
|
||||
${draco_compression_attributes_pred_schemes_enc_sources}
|
||||
${draco_compression_bit_coders_sources}
|
||||
${draco_compression_encode_sources}
|
||||
${draco_compression_entropy_sources}
|
||||
${draco_compression_mesh_traverser_sources}
|
||||
${draco_compression_mesh_enc_sources}
|
||||
${draco_compression_point_cloud_enc_sources}
|
||||
${draco_core_sources}
|
||||
${draco_enc_config_sources}
|
||||
${draco_js_enc_sources}
|
||||
${draco_mesh_sources}
|
||||
${draco_metadata_enc_sources}
|
||||
${draco_metadata_sources}
|
||||
${draco_point_cloud_sources}
|
||||
${draco_points_enc_sources})
|
||||
|
||||
list(APPEND draco_js_dec_idl
|
||||
"${draco_src_root}/javascript/emscripten/draco_web_decoder.idl")
|
||||
list(APPEND draco_js_enc_idl
|
||||
"${draco_src_root}/javascript/emscripten/draco_web_encoder.idl")
|
||||
list(
|
||||
APPEND
|
||||
draco_animation_js_dec_idl
|
||||
"${draco_src_root}/javascript/emscripten/draco_animation_web_decoder.idl")
|
||||
list(
|
||||
APPEND
|
||||
draco_animation_js_enc_idl
|
||||
"${draco_src_root}/javascript/emscripten/draco_animation_web_encoder.idl")
|
||||
list(APPEND draco_pre_link_js_sources
|
||||
"${draco_src_root}/javascript/emscripten/prepareCallbacks.js"
|
||||
"${draco_src_root}/javascript/emscripten/version.js")
|
||||
list(APPEND draco_post_link_js_sources
|
||||
"${draco_src_root}/javascript/emscripten/finalize.js")
|
||||
list(APPEND draco_post_link_js_decoder_sources ${draco_post_link_js_sources}
|
||||
"${draco_src_root}/javascript/emscripten/decoder_functions.js")
|
||||
|
||||
set(draco_decoder_glue_path "${draco_build}/glue_decoder")
|
||||
set(draco_encoder_glue_path "${draco_build}/glue_encoder")
|
||||
|
||||
draco_generate_emscripten_glue(INPUT_IDL ${draco_js_dec_idl} OUTPUT_PATH
|
||||
${draco_decoder_glue_path})
|
||||
draco_generate_emscripten_glue(INPUT_IDL ${draco_js_enc_idl} OUTPUT_PATH
|
||||
${draco_encoder_glue_path})
|
||||
|
||||
if(DRACO_DECODER_ATTRIBUTE_DEDUPLICATION)
|
||||
list(APPEND draco_decoder_features
|
||||
"DRACO_ATTRIBUTE_INDICES_DEDUPLICATION_SUPPORTED"
|
||||
"DRACO_ATTRIBUTE_VALUES_DEDUPLICATION_SUPPORTED")
|
||||
endif()
|
||||
|
||||
draco_add_emscripten_executable(NAME
|
||||
draco_decoder
|
||||
SOURCES
|
||||
${draco_decoder_src}
|
||||
DEFINES
|
||||
${draco_defines}
|
||||
FEATURES
|
||||
${draco_decoder_features}
|
||||
INCLUDES
|
||||
${draco_include_paths}
|
||||
LINK_FLAGS
|
||||
"-sEXPORT_NAME=\"DracoDecoderModule\""
|
||||
GLUE_PATH
|
||||
${draco_decoder_glue_path}
|
||||
PRE_LINK_JS_SOURCES
|
||||
${draco_pre_link_js_sources}
|
||||
POST_LINK_JS_SOURCES
|
||||
${draco_post_link_js_decoder_sources})
|
||||
|
||||
draco_add_emscripten_executable(
|
||||
NAME
|
||||
draco_encoder
|
||||
SOURCES
|
||||
${draco_encoder_src}
|
||||
DEFINES
|
||||
${draco_defines}
|
||||
FEATURES
|
||||
DRACO_ATTRIBUTE_INDICES_DEDUPLICATION_SUPPORTED
|
||||
DRACO_ATTRIBUTE_VALUES_DEDUPLICATION_SUPPORTED
|
||||
INCLUDES
|
||||
${draco_include_paths}
|
||||
LINK_FLAGS
|
||||
"-sEXPORT_NAME=\"DracoEncoderModule\""
|
||||
GLUE_PATH
|
||||
${draco_encoder_glue_path}
|
||||
PRE_LINK_JS_SOURCES
|
||||
${draco_pre_link_js_sources}
|
||||
POST_LINK_JS_SOURCES
|
||||
${draco_post_link_js_sources})
|
||||
|
||||
if(DRACO_ANIMATION_ENCODING)
|
||||
set(draco_anim_decoder_glue_path "${draco_build}/glue_animation_decoder")
|
||||
set(draco_anim_encoder_glue_path "${draco_build}/glue_animation_encoder")
|
||||
|
||||
draco_generate_emscripten_glue(INPUT_IDL ${draco_animation_js_dec_idl}
|
||||
OUTPUT_PATH ${draco_anim_decoder_glue_path})
|
||||
draco_generate_emscripten_glue(INPUT_IDL ${draco_animation_js_enc_idl}
|
||||
OUTPUT_PATH ${draco_anim_encoder_glue_path})
|
||||
|
||||
draco_add_emscripten_executable(
|
||||
NAME
|
||||
draco_animation_decoder
|
||||
SOURCES
|
||||
${draco_animation_dec_sources}
|
||||
${draco_animation_js_dec_sources}
|
||||
${draco_animation_sources}
|
||||
${draco_decoder_src}
|
||||
DEFINES
|
||||
${draco_defines}
|
||||
INCLUDES
|
||||
${draco_include_paths}
|
||||
LINK_FLAGS
|
||||
"-sEXPORT_NAME=\"DracoAnimationDecoderModule\""
|
||||
GLUE_PATH
|
||||
${draco_anim_decoder_glue_path}
|
||||
PRE_LINK_JS_SOURCES
|
||||
${draco_pre_link_js_sources}
|
||||
POST_LINK_JS_SOURCES
|
||||
${draco_post_link_js_decoder_sources})
|
||||
|
||||
draco_add_emscripten_executable(
|
||||
NAME
|
||||
draco_animation_encoder
|
||||
SOURCES
|
||||
${draco_animation_enc_sources}
|
||||
${draco_animation_js_enc_sources}
|
||||
${draco_animation_sources}
|
||||
${draco_encoder_src}
|
||||
DEFINES
|
||||
${draco_defines}
|
||||
INCLUDES
|
||||
${draco_include_paths}
|
||||
LINK_FLAGS
|
||||
"-sEXPORT_NAME=\"DracoAnimationEncoderModule\""
|
||||
GLUE_PATH
|
||||
${draco_anim_encoder_glue_path}
|
||||
PRE_LINK_JS_SOURCES
|
||||
${draco_pre_link_js_sources}
|
||||
POST_LINK_JS_SOURCES
|
||||
${draco_post_link_js_sources})
|
||||
endif()
|
||||
else()
|
||||
# Standard Draco libs, encoder and decoder. Object collections that mirror the
|
||||
# Draco directory structure.
|
||||
draco_add_library(NAME draco_attributes TYPE OBJECT SOURCES
|
||||
${draco_attributes_sources} DEFINES ${draco_defines}
|
||||
INCLUDES ${draco_include_paths})
|
||||
draco_add_library(NAME
|
||||
draco_compression_attributes_dec
|
||||
OBJECT
|
||||
${draco_compression_attributes_dec_sources}
|
||||
TYPE
|
||||
OBJECT
|
||||
SOURCES
|
||||
${draco_compression_attributes_dec_sources}
|
||||
DEFINES
|
||||
${draco_defines}
|
||||
INCLUDES
|
||||
${draco_include_paths})
|
||||
draco_add_library(NAME draco_compression_attributes_enc TYPE OBJECT SOURCES
|
||||
${draco_compression_attributes_enc_sources} DEFINES
|
||||
${draco_defines} INCLUDES ${draco_include_paths})
|
||||
draco_add_library(NAME draco_compression_attributes_pred_schemes_dec TYPE
|
||||
OBJECT SOURCES
|
||||
${draco_compression_attributes_pred_schemes_dec_sources})
|
||||
draco_add_library(NAME draco_compression_attributes_pred_schemes_enc TYPE
|
||||
OBJECT SOURCES
|
||||
${draco_compression_attributes_pred_schemes_enc_sources}
|
||||
DEFINES ${draco_defines} INCLUDES ${draco_include_paths})
|
||||
draco_add_library(NAME draco_compression_bit_coders TYPE OBJECT SOURCES
|
||||
${draco_compression_bit_coders_sources} DEFINES
|
||||
${draco_defines} INCLUDES ${draco_include_paths})
|
||||
draco_add_library(NAME draco_enc_config TYPE OBJECT SOURCES
|
||||
${draco_enc_config_sources} DEFINES ${draco_defines}
|
||||
INCLUDES ${draco_include_paths})
|
||||
draco_add_library(NAME draco_dec_config TYPE OBJECT SOURCES
|
||||
${draco_dec_config_sources} DEFINES ${draco_defines}
|
||||
INCLUDES ${draco_include_paths})
|
||||
draco_add_library(NAME draco_compression_decode TYPE OBJECT SOURCES
|
||||
${draco_compression_decode_sources} DEFINES ${draco_defines}
|
||||
INCLUDES ${draco_include_paths})
|
||||
draco_add_library(NAME draco_compression_encode TYPE OBJECT SOURCES
|
||||
${draco_compression_encode_sources} DEFINES ${draco_defines}
|
||||
INCLUDES ${draco_include_paths})
|
||||
draco_add_library(NAME draco_compression_entropy TYPE OBJECT SOURCES
|
||||
${draco_compression_entropy_sources} DEFINES
|
||||
${draco_defines} INCLUDES ${draco_include_paths})
|
||||
draco_add_library(NAME draco_compression_mesh_traverser TYPE OBJECT SOURCES
|
||||
${draco_compression_mesh_traverser_sources} DEFINES
|
||||
${draco_defines} INCLUDES ${draco_include_paths})
|
||||
draco_add_library(NAME draco_compression_mesh_dec TYPE OBJECT SOURCES
|
||||
${draco_compression_mesh_dec_sources} DEFINES
|
||||
${draco_defines} INCLUDES ${draco_include_paths})
|
||||
draco_add_library(NAME draco_compression_mesh_enc TYPE OBJECT SOURCES
|
||||
${draco_compression_mesh_enc_sources} DEFINES
|
||||
${draco_defines} INCLUDES ${draco_include_paths})
|
||||
draco_add_library(NAME draco_compression_point_cloud_dec TYPE OBJECT SOURCES
|
||||
${draco_compression_point_cloud_dec_sources} DEFINES
|
||||
${draco_defines} INCLUDES ${draco_include_paths})
|
||||
draco_add_library(NAME draco_compression_point_cloud_enc TYPE OBJECT SOURCES
|
||||
${draco_compression_point_cloud_enc_sources} DEFINES
|
||||
${draco_defines} INCLUDES ${draco_include_paths})
|
||||
draco_add_library(NAME draco_core TYPE OBJECT SOURCES ${draco_core_sources}
|
||||
DEFINES ${draco_defines} INCLUDES ${draco_include_paths})
|
||||
draco_add_library(NAME draco_io TYPE OBJECT SOURCES ${draco_io_sources}
|
||||
DEFINES ${draco_defines} INCLUDES ${draco_include_paths})
|
||||
draco_add_library(NAME draco_mesh TYPE OBJECT SOURCES ${draco_mesh_sources}
|
||||
DEFINES ${draco_defines} INCLUDES ${draco_include_paths})
|
||||
draco_add_library(NAME draco_metadata_dec TYPE OBJECT SOURCES
|
||||
${draco_metadata_dec_sources} DEFINES ${draco_defines}
|
||||
INCLUDES ${draco_include_paths})
|
||||
draco_add_library(NAME draco_metadata_enc TYPE OBJECT SOURCES
|
||||
${draco_metadata_enc_sources} DEFINES ${draco_defines}
|
||||
INCLUDES ${draco_include_paths})
|
||||
draco_add_library(NAME draco_metadata TYPE OBJECT SOURCES
|
||||
${draco_metadata_sources} DEFINES ${draco_defines} INCLUDES
|
||||
${draco_include_paths})
|
||||
draco_add_library(NAME draco_animation_dec TYPE OBJECT SOURCES
|
||||
${draco_animation_dec_sources} DEFINES ${draco_defines}
|
||||
INCLUDES ${draco_include_paths})
|
||||
draco_add_library(NAME draco_animation_enc TYPE OBJECT SOURCES
|
||||
${draco_animation_enc_sources} DEFINES ${draco_defines}
|
||||
INCLUDES ${draco_include_paths})
|
||||
draco_add_library(NAME draco_animation TYPE OBJECT SOURCES
|
||||
${draco_animation_sources} DEFINES ${draco_defines} INCLUDES
|
||||
${draco_include_paths})
|
||||
draco_add_library(NAME draco_point_cloud TYPE OBJECT SOURCES
|
||||
${draco_point_cloud_sources} DEFINES ${draco_defines}
|
||||
INCLUDES ${draco_include_paths})
|
||||
draco_add_library(NAME
|
||||
draco_points_dec
|
||||
TYPE
|
||||
OBJECT
|
||||
SOURCES
|
||||
${draco_points_common_sources}
|
||||
${draco_points_dec_sources}
|
||||
DEFINES
|
||||
${draco_defines}
|
||||
INCLUDES
|
||||
${draco_include_paths})
|
||||
draco_add_library(NAME
|
||||
draco_points_enc
|
||||
TYPE
|
||||
OBJECT
|
||||
SOURCES
|
||||
${draco_points_common_sources}
|
||||
${draco_points_enc_sources}
|
||||
DEFINES
|
||||
${draco_defines}
|
||||
INCLUDES
|
||||
${draco_include_paths})
|
||||
|
||||
set(draco_object_library_deps
|
||||
draco_attributes
|
||||
draco_compression_attributes_dec
|
||||
draco_compression_attributes_enc
|
||||
draco_compression_attributes_pred_schemes_dec
|
||||
draco_compression_attributes_pred_schemes_enc
|
||||
draco_compression_bit_coders
|
||||
draco_compression_decode
|
||||
draco_compression_encode
|
||||
draco_compression_entropy
|
||||
draco_compression_mesh_dec
|
||||
draco_compression_mesh_enc
|
||||
draco_compression_point_cloud_dec
|
||||
draco_compression_point_cloud_enc
|
||||
draco_core
|
||||
draco_dec_config
|
||||
draco_enc_config
|
||||
draco_io
|
||||
draco_mesh
|
||||
draco_metadata
|
||||
draco_metadata_dec
|
||||
draco_metadata_enc
|
||||
draco_animation
|
||||
draco_animation_dec
|
||||
draco_animation_enc
|
||||
draco_point_cloud
|
||||
draco_points_dec
|
||||
draco_points_enc)
|
||||
|
||||
# Library targets that consume the object collections.
|
||||
if(MSVC OR WIN32)
|
||||
# In order to produce a DLL and import library the Windows tools require
|
||||
# that the exported symbols are part of the DLL target. The unfortunate side
|
||||
# effect of this is that a single configuration cannot output both the
|
||||
# static library and the DLL: This results in an either/or situation.
|
||||
# Windows users of the draco build can have a DLL and an import library,
|
||||
# or they can have a static library; they cannot have both from a single
|
||||
# configuration of the build.
|
||||
if(BUILD_SHARED_LIBS)
|
||||
set(draco_lib_type SHARED)
|
||||
else()
|
||||
set(draco_lib_type STATIC)
|
||||
endif()
|
||||
draco_add_library(NAME
|
||||
draco
|
||||
OUTPUT_NAME
|
||||
draco
|
||||
TYPE
|
||||
${draco_lib_type}
|
||||
DEFINES
|
||||
${draco_defines}
|
||||
INCLUDES
|
||||
${draco_include_paths}
|
||||
OBJLIB_DEPS
|
||||
${draco_object_library_deps})
|
||||
|
||||
else()
|
||||
draco_add_library(NAME
|
||||
draco_static
|
||||
OUTPUT_NAME
|
||||
draco
|
||||
TYPE
|
||||
STATIC
|
||||
DEFINES
|
||||
${draco_defines}
|
||||
INCLUDES
|
||||
${draco_include_paths}
|
||||
OBJLIB_DEPS
|
||||
${draco_object_library_deps})
|
||||
|
||||
if(BUILD_SHARED_LIBS)
|
||||
draco_add_library(NAME
|
||||
draco_shared
|
||||
SOURCES
|
||||
"${draco_src_root}/core/draco_version.h"
|
||||
OUTPUT_NAME
|
||||
draco
|
||||
TYPE
|
||||
SHARED
|
||||
DEFINES
|
||||
${draco_defines}
|
||||
INCLUDES
|
||||
${draco_include_paths}
|
||||
LIB_DEPS
|
||||
draco_static)
|
||||
endif()
|
||||
endif()
|
||||
|
||||
if(DRACO_UNITY_PLUGIN)
|
||||
if(IOS)
|
||||
set(unity_decoder_lib_type STATIC)
|
||||
else()
|
||||
set(unity_decoder_lib_type MODULE)
|
||||
endif()
|
||||
|
||||
draco_add_library(NAME draco_unity_plugin TYPE OBJECT SOURCES
|
||||
${draco_unity_plug_sources} DEFINES ${draco_defines}
|
||||
INCLUDES ${draco_include_paths})
|
||||
|
||||
draco_add_library(NAME
|
||||
dracodec_unity
|
||||
TYPE
|
||||
${unity_decoder_lib_type}
|
||||
DEFINES
|
||||
${draco_defines}
|
||||
INCLUDES
|
||||
${draco_include_paths}
|
||||
OBJLIB_DEPS
|
||||
draco_unity_plugin
|
||||
LIB_DEPS
|
||||
${draco_plugin_dependency})
|
||||
|
||||
# For Mac, we need to build a .bundle for the unity plugin.
|
||||
if(APPLE)
|
||||
set_target_properties(dracodec_unity PROPERTIES BUNDLE true)
|
||||
elseif(NOT unity_decoder_lib_type STREQUAL STATIC)
|
||||
set_target_properties(dracodec_unity
|
||||
PROPERTIES SOVERSION ${DRACO_SOVERSION})
|
||||
endif()
|
||||
endif()
|
||||
|
||||
if(DRACO_MAYA_PLUGIN)
|
||||
draco_add_library(NAME draco_maya_plugin TYPE OBJECT SOURCES
|
||||
${draco_maya_plug_sources} DEFINES ${draco_defines}
|
||||
INCLUDES ${draco_include_paths})
|
||||
|
||||
draco_add_library(NAME
|
||||
draco_maya_wrapper
|
||||
TYPE
|
||||
MODULE
|
||||
DEFINES
|
||||
${draco_defines}
|
||||
INCLUDES
|
||||
${draco_include_paths}
|
||||
OBJLIB_DEPS
|
||||
draco_maya_plugin
|
||||
LIB_DEPS
|
||||
${draco_plugin_dependency})
|
||||
|
||||
# For Mac, we need to build a .bundle for the plugin.
|
||||
if(APPLE)
|
||||
set_target_properties(draco_maya_wrapper PROPERTIES BUNDLE true)
|
||||
else()
|
||||
set_target_properties(draco_maya_wrapper
|
||||
PROPERTIES SOVERSION ${DRACO_SOVERSION})
|
||||
endif()
|
||||
endif()
|
||||
|
||||
# Draco app targets.
|
||||
draco_add_executable(NAME
|
||||
draco_decoder
|
||||
SOURCES
|
||||
"${draco_src_root}/tools/draco_decoder.cc"
|
||||
${draco_io_sources}
|
||||
DEFINES
|
||||
${draco_defines}
|
||||
INCLUDES
|
||||
${draco_include_paths}
|
||||
LIB_DEPS
|
||||
${draco_dependency})
|
||||
|
||||
draco_add_executable(NAME
|
||||
draco_encoder
|
||||
SOURCES
|
||||
"${draco_src_root}/tools/draco_encoder.cc"
|
||||
${draco_io_sources}
|
||||
DEFINES
|
||||
${draco_defines}
|
||||
INCLUDES
|
||||
${draco_include_paths}
|
||||
LIB_DEPS
|
||||
${draco_dependency})
|
||||
|
||||
draco_setup_install_target()
|
||||
draco_setup_test_targets()
|
||||
endif()
|
||||
|
||||
if(DRACO_VERBOSE)
|
||||
draco_dump_cmake_flag_variables()
|
||||
draco_dump_tracked_configuration_variables()
|
||||
draco_dump_options()
|
||||
endif()
|
||||
|
|
@ -0,0 +1,27 @@
|
|||
Want to contribute? Great! First, read this page (including the small print at the end).
|
||||
|
||||
### Before you contribute
|
||||
Before we can use your code, you must sign the
|
||||
[Google Individual Contributor License Agreement](https://cla.developers.google.com/about/google-individual)
|
||||
(CLA), which you can do online. The CLA is necessary mainly because you own the
|
||||
copyright to your changes, even after your contribution becomes part of our
|
||||
codebase, so we need your permission to use and distribute your code. We also
|
||||
need to be sure of various other things—for instance that you'll tell us if you
|
||||
know that your code infringes on other people's patents. You don't have to sign
|
||||
the CLA until after you've submitted your code for review and a member has
|
||||
approved it, but you must do it before we can put your code into our codebase.
|
||||
Before you start working on a larger contribution, you should get in touch with
|
||||
us first through the issue tracker with your idea so that we can help out and
|
||||
possibly guide you. Coordinating up front makes it much easier to avoid
|
||||
frustration later on.
|
||||
|
||||
### Code reviews
|
||||
All submissions, including submissions by project members, require review. We
|
||||
use GitHub pull requests for this purpose.
|
||||
Please make sure that your code conforms with our
|
||||
[coding style guidelines](https://google.github.io/styleguide/cppguide.html).
|
||||
|
||||
### The small print
|
||||
Contributions made by corporations are covered by a different agreement than
|
||||
the one above, the
|
||||
[Software Grant and Corporate Contributor License Agreement](https://cla.developers.google.com/about/google-corporate).
|
||||
|
|
@ -0,0 +1,252 @@
|
|||
Apache License
|
||||
Version 2.0, January 2004
|
||||
http://www.apache.org/licenses/
|
||||
|
||||
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
|
||||
|
||||
1. Definitions.
|
||||
|
||||
"License" shall mean the terms and conditions for use, reproduction,
|
||||
and distribution as defined by Sections 1 through 9 of this document.
|
||||
|
||||
"Licensor" shall mean the copyright owner or entity authorized by
|
||||
the copyright owner that is granting the License.
|
||||
|
||||
"Legal Entity" shall mean the union of the acting entity and all
|
||||
other entities that control, are controlled by, or are under common
|
||||
control with that entity. For the purposes of this definition,
|
||||
"control" means (i) the power, direct or indirect, to cause the
|
||||
direction or management of such entity, whether by contract or
|
||||
otherwise, or (ii) ownership of fifty percent (50%) or more of the
|
||||
outstanding shares, or (iii) beneficial ownership of such entity.
|
||||
|
||||
"You" (or "Your") shall mean an individual or Legal Entity
|
||||
exercising permissions granted by this License.
|
||||
|
||||
"Source" form shall mean the preferred form for making modifications,
|
||||
including but not limited to software source code, documentation
|
||||
source, and configuration files.
|
||||
|
||||
"Object" form shall mean any form resulting from mechanical
|
||||
transformation or translation of a Source form, including but
|
||||
not limited to compiled object code, generated documentation,
|
||||
and conversions to other media types.
|
||||
|
||||
"Work" shall mean the work of authorship, whether in Source or
|
||||
Object form, made available under the License, as indicated by a
|
||||
copyright notice that is included in or attached to the work
|
||||
(an example is provided in the Appendix below).
|
||||
|
||||
"Derivative Works" shall mean any work, whether in Source or Object
|
||||
form, that is based on (or derived from) the Work and for which the
|
||||
editorial revisions, annotations, elaborations, or other modifications
|
||||
represent, as a whole, an original work of authorship. For the purposes
|
||||
of this License, Derivative Works shall not include works that remain
|
||||
separable from, or merely link (or bind by name) to the interfaces of,
|
||||
the Work and Derivative Works thereof.
|
||||
|
||||
"Contribution" shall mean any work of authorship, including
|
||||
the original version of the Work and any modifications or additions
|
||||
to that Work or Derivative Works thereof, that is intentionally
|
||||
submitted to Licensor for inclusion in the Work by the copyright owner
|
||||
or by an individual or Legal Entity authorized to submit on behalf of
|
||||
the copyright owner. For the purposes of this definition, "submitted"
|
||||
means any form of electronic, verbal, or written communication sent
|
||||
to the Licensor or its representatives, including but not limited to
|
||||
communication on electronic mailing lists, source code control systems,
|
||||
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APPENDIX: How to apply the Apache License to your work.
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--------------------------------------------------------------------------------
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Files: docs/assets/js/ASCIIMathML.js
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Copyright (c) 2014 Peter Jipsen and other ASCIIMathML.js contributors
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Permission is hereby granted, free of charge, to any person obtaining a copy
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--------------------------------------------------------------------------------
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Files: docs/assets/css/pygments/*
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This is free and unencumbered software released into the public domain.
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Anyone is free to copy, modify, publish, use, compile, sell, or
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In jurisdictions that recognize copyright laws, the author or authors
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||||
For more information, please refer to <http://unlicense.org>
|
||||
|
|
@ -0,0 +1,478 @@
|
|||
<p align="center">
|
||||
<img width="350px" src="docs/artwork/draco3d-vert.svg" />
|
||||
</p>
|
||||
|
||||
|
||||
|
||||
News
|
||||
=======
|
||||
### Version 1.4.1 release
|
||||
* Using the versioned gstatic.com WASM and Javascript decoders is now
|
||||
recommended. To use v1.4.1, use this URL:
|
||||
* https://www.gstatic.com/draco/versioned/decoders/1.4.1/*
|
||||
* Replace the * with the files to load. E.g.
|
||||
* https://gstatic.com/draco/versioned/decoders/1.4.1/draco_decoder.js
|
||||
* This works with the v1.3.6 and v1.4.0 releases, and will work with future
|
||||
Draco releases.
|
||||
* Bug fixes
|
||||
|
||||
### Version 1.4.0 release
|
||||
* WASM and JavaScript decoders are hosted from a static URL.
|
||||
* It is recommended to always pull your Draco WASM and JavaScript decoders from this URL:
|
||||
* https://www.gstatic.com/draco/v1/decoders/*
|
||||
* Replace * with the files to load. E.g.
|
||||
* https://www.gstatic.com/draco/v1/decoders/draco_decoder_gltf.wasm
|
||||
* Users will benefit from having the Draco decoder in cache as more sites start using the static URL
|
||||
* Changed npm modules to use WASM, which increased performance by ~200%.
|
||||
* Updated Emscripten to 2.0.
|
||||
* This causes the Draco codec modules to return a promise instead of the module directly.
|
||||
* Please see the example code on how to handle the promise.
|
||||
* Changed NORMAL quantization default to 8.
|
||||
* Added new array API to decoder and deprecated DecoderBuffer.
|
||||
* See PR https://github.com/google/draco/issues/513 for more information.
|
||||
* Changed WASM/JavaScript behavior of catching exceptions.
|
||||
* See issue https://github.com/google/draco/issues/629 for more information.
|
||||
* Code cleanup.
|
||||
* Emscripten builds now disable NODEJS_CATCH_EXIT and NODEJS_CATCH_REJECTION.
|
||||
* Authors of a CLI tool might want to add their own error handlers.
|
||||
* Added Maya plugin builds.
|
||||
* Unity plugin builds updated.
|
||||
* Builds are now stored as archives.
|
||||
* Added iOS build.
|
||||
* Unity users may want to look into https://github.com/atteneder/DracoUnity.
|
||||
* Bug fixes.
|
||||
|
||||
### Version 1.3.6 release
|
||||
* WASM and JavaScript decoders are now hosted from a static URL
|
||||
* It is recommended to always pull your Draco WASM and JavaScript decoders from this URL:
|
||||
* https://www.gstatic.com/draco/v1/decoders/*
|
||||
* Replace * with the files to load. E.g.
|
||||
* https://www.gstatic.com/draco/v1/decoders/draco_decoder_gltf.wasm
|
||||
* Users will benefit from having the Draco decoder in cache as more sites start using the static URL
|
||||
* Changed web examples to pull Draco decoders from static URL
|
||||
* Added new API to Draco WASM decoder, which increased performance by ~15%
|
||||
* Decreased Draco WASM decoder size by ~20%
|
||||
* Added support for generic and multiple attributes to Draco Unity plug-ins
|
||||
* Added new API to Draco Unity, which increased decoder performance by ~15%
|
||||
* Changed quantization defaults:
|
||||
* POSITION: 11
|
||||
* NORMAL: 7
|
||||
* TEX_COORD: 10
|
||||
* COLOR: 8
|
||||
* GENERIC: 8
|
||||
* Code cleanup
|
||||
* Bug fixes
|
||||
|
||||
### Version 1.3.5 release
|
||||
* Added option to build Draco for Universal Scene Description
|
||||
* Code cleanup
|
||||
* Bug fixes
|
||||
|
||||
### Version 1.3.4 release
|
||||
* Released Draco Animation code
|
||||
* Fixes for Unity
|
||||
* Various file location and name changes
|
||||
|
||||
### Version 1.3.3 release
|
||||
* Added ExpertEncoder to the Javascript API
|
||||
* Allows developers to set quantization options per attribute id
|
||||
* Bug fixes
|
||||
|
||||
### Version 1.3.2 release
|
||||
* Bug fixes
|
||||
|
||||
### Version 1.3.1 release
|
||||
* Fix issue with multiple attributes when skipping an attribute transform
|
||||
|
||||
### Version 1.3.0 release
|
||||
* Improved kD-tree based point cloud encoding
|
||||
* Now applicable to point clouds with any number of attributes
|
||||
* Support for all integer attribute types and quantized floating point types
|
||||
* Improved mesh compression up to 10% (on average ~2%)
|
||||
* For meshes, the 1.3.0 bitstream is fully compatible with 1.2.x decoders
|
||||
* Improved Javascript API
|
||||
* Added support for all signed and unsigned integer types
|
||||
* Added support for point clouds to our Javascript encoder API
|
||||
* Added support for integer properties to the PLY decoder
|
||||
* Bug fixes
|
||||
|
||||
### Previous releases
|
||||
https://github.com/google/draco/releases
|
||||
|
||||
Description
|
||||
===========
|
||||
|
||||
Draco is a library for compressing and decompressing 3D geometric [meshes] and
|
||||
[point clouds]. It is intended to improve the storage and transmission of 3D
|
||||
graphics.
|
||||
|
||||
Draco was designed and built for compression efficiency and speed. The code
|
||||
supports compressing points, connectivity information, texture coordinates,
|
||||
color information, normals, and any other generic attributes associated with
|
||||
geometry. With Draco, applications using 3D graphics can be significantly
|
||||
smaller without compromising visual fidelity. For users, this means apps can
|
||||
now be downloaded faster, 3D graphics in the browser can load quicker, and VR
|
||||
and AR scenes can now be transmitted with a fraction of the bandwidth and
|
||||
rendered quickly.
|
||||
|
||||
Draco is released as C++ source code that can be used to compress 3D graphics
|
||||
as well as C++ and Javascript decoders for the encoded data.
|
||||
|
||||
|
||||
_**Contents**_
|
||||
|
||||
* [Building](#building)
|
||||
* [Usage](#usage)
|
||||
* [Unity](#unity)
|
||||
* [WASM and JavaScript Decoders](#WASM-and-JavaScript-Decoders)
|
||||
* [Command Line Applications](#command-line-applications)
|
||||
* [Encoding Tool](#encoding-tool)
|
||||
* [Encoding Point Clouds](#encoding-point-clouds)
|
||||
* [Decoding Tool](#decoding-tool)
|
||||
* [C++ Decoder API](#c-decoder-api)
|
||||
* [Javascript Encoder API](#javascript-encoder-api)
|
||||
* [Javascript Decoder API](#javascript-decoder-api)
|
||||
* [Javascript Decoder Performance](#javascript-decoder-performance)
|
||||
* [Metadata API](#metadata-api)
|
||||
* [NPM Package](#npm-package)
|
||||
* [three.js Renderer Example](#threejs-renderer-example)
|
||||
* [Support](#support)
|
||||
* [License](#license)
|
||||
* [References](#references)
|
||||
|
||||
|
||||
Building
|
||||
========
|
||||
See [BUILDING](BUILDING.md) for building instructions.
|
||||
|
||||
|
||||
Usage
|
||||
======
|
||||
|
||||
Unity
|
||||
-----
|
||||
For the best information about using Unity with Draco please visit https://github.com/atteneder/DracoUnity
|
||||
|
||||
For a simple example of using Unity with Draco see [README](unity/README.md) in the unity folder.
|
||||
|
||||
WASM and JavaScript Decoders
|
||||
----------------------------
|
||||
|
||||
It is recommended to always pull your Draco WASM and JavaScript decoders from:
|
||||
|
||||
~~~~~ bash
|
||||
https://www.gstatic.com/draco/v1/decoders/
|
||||
~~~~~
|
||||
|
||||
Users will benefit from having the Draco decoder in cache as more sites start using the static URL.
|
||||
|
||||
Command Line Applications
|
||||
------------------------
|
||||
|
||||
The default target created from the build files will be the `draco_encoder`
|
||||
and `draco_decoder` command line applications. For both applications, if you
|
||||
run them without any arguments or `-h`, the applications will output usage and
|
||||
options.
|
||||
|
||||
Encoding Tool
|
||||
-------------
|
||||
|
||||
`draco_encoder` will read OBJ or PLY files as input, and output Draco-encoded
|
||||
files. We have included Stanford's [Bunny] mesh for testing. The basic command
|
||||
line looks like this:
|
||||
|
||||
~~~~~ bash
|
||||
./draco_encoder -i testdata/bun_zipper.ply -o out.drc
|
||||
~~~~~
|
||||
|
||||
A value of `0` for the quantization parameter will not perform any quantization
|
||||
on the specified attribute. Any value other than `0` will quantize the input
|
||||
values for the specified attribute to that number of bits. For example:
|
||||
|
||||
~~~~~ bash
|
||||
./draco_encoder -i testdata/bun_zipper.ply -o out.drc -qp 14
|
||||
~~~~~
|
||||
|
||||
will quantize the positions to 14 bits (default is 11 for the position
|
||||
coordinates).
|
||||
|
||||
In general, the more you quantize your attributes the better compression rate
|
||||
you will get. It is up to your project to decide how much deviation it will
|
||||
tolerate. In general, most projects can set quantization values of about `11`
|
||||
without any noticeable difference in quality.
|
||||
|
||||
The compression level (`-cl`) parameter turns on/off different compression
|
||||
features.
|
||||
|
||||
~~~~~ bash
|
||||
./draco_encoder -i testdata/bun_zipper.ply -o out.drc -cl 8
|
||||
~~~~~
|
||||
|
||||
In general, the highest setting, `10`, will have the most compression but
|
||||
worst decompression speed. `0` will have the least compression, but best
|
||||
decompression speed. The default setting is `7`.
|
||||
|
||||
Encoding Point Clouds
|
||||
---------------------
|
||||
|
||||
You can encode point cloud data with `draco_encoder` by specifying the
|
||||
`-point_cloud` parameter. If you specify the `-point_cloud` parameter with a
|
||||
mesh input file, `draco_encoder` will ignore the connectivity data and encode
|
||||
the positions from the mesh file.
|
||||
|
||||
~~~~~ bash
|
||||
./draco_encoder -point_cloud -i testdata/bun_zipper.ply -o out.drc
|
||||
~~~~~
|
||||
|
||||
This command line will encode the mesh input as a point cloud, even though the
|
||||
input might not produce compression that is representative of other point
|
||||
clouds. Specifically, one can expect much better compression rates for larger
|
||||
and denser point clouds.
|
||||
|
||||
Decoding Tool
|
||||
-------------
|
||||
|
||||
`draco_decoder` will read Draco files as input, and output OBJ or PLY files.
|
||||
The basic command line looks like this:
|
||||
|
||||
~~~~~ bash
|
||||
./draco_decoder -i in.drc -o out.obj
|
||||
~~~~~
|
||||
|
||||
C++ Decoder API
|
||||
-------------
|
||||
|
||||
If you'd like to add decoding to your applications you will need to include
|
||||
the `draco_dec` library. In order to use the Draco decoder you need to
|
||||
initialize a `DecoderBuffer` with the compressed data. Then call
|
||||
`DecodeMeshFromBuffer()` to return a decoded mesh object or call
|
||||
`DecodePointCloudFromBuffer()` to return a decoded `PointCloud` object. For
|
||||
example:
|
||||
|
||||
~~~~~ cpp
|
||||
draco::DecoderBuffer buffer;
|
||||
buffer.Init(data.data(), data.size());
|
||||
|
||||
const draco::EncodedGeometryType geom_type =
|
||||
draco::GetEncodedGeometryType(&buffer);
|
||||
if (geom_type == draco::TRIANGULAR_MESH) {
|
||||
unique_ptr<draco::Mesh> mesh = draco::DecodeMeshFromBuffer(&buffer);
|
||||
} else if (geom_type == draco::POINT_CLOUD) {
|
||||
unique_ptr<draco::PointCloud> pc = draco::DecodePointCloudFromBuffer(&buffer);
|
||||
}
|
||||
~~~~~
|
||||
|
||||
Please see [src/draco/mesh/mesh.h](src/draco/mesh/mesh.h) for the full `Mesh` class interface and
|
||||
[src/draco/point_cloud/point_cloud.h](src/draco/point_cloud/point_cloud.h) for the full `PointCloud` class interface.
|
||||
|
||||
|
||||
Javascript Encoder API
|
||||
----------------------
|
||||
The Javascript encoder is located in `javascript/draco_encoder.js`. The encoder
|
||||
API can be used to compress mesh and point cloud. In order to use the encoder,
|
||||
you need to first create an instance of `DracoEncoderModule`. Then use this
|
||||
instance to create `MeshBuilder` and `Encoder` objects. `MeshBuilder` is used
|
||||
to construct a mesh from geometry data that could be later compressed by
|
||||
`Encoder`. First create a mesh object using `new encoderModule.Mesh()` . Then,
|
||||
use `AddFacesToMesh()` to add indices to the mesh and use
|
||||
`AddFloatAttributeToMesh()` to add attribute data to the mesh, e.g. position,
|
||||
normal, color and texture coordinates. After a mesh is constructed, you could
|
||||
then use `EncodeMeshToDracoBuffer()` to compress the mesh. For example:
|
||||
|
||||
~~~~~ js
|
||||
const mesh = {
|
||||
indices : new Uint32Array(indices),
|
||||
vertices : new Float32Array(vertices),
|
||||
normals : new Float32Array(normals)
|
||||
};
|
||||
|
||||
const encoderModule = DracoEncoderModule();
|
||||
const encoder = new encoderModule.Encoder();
|
||||
const meshBuilder = new encoderModule.MeshBuilder();
|
||||
const dracoMesh = new encoderModule.Mesh();
|
||||
|
||||
const numFaces = mesh.indices.length / 3;
|
||||
const numPoints = mesh.vertices.length;
|
||||
meshBuilder.AddFacesToMesh(dracoMesh, numFaces, mesh.indices);
|
||||
|
||||
meshBuilder.AddFloatAttributeToMesh(dracoMesh, encoderModule.POSITION,
|
||||
numPoints, 3, mesh.vertices);
|
||||
if (mesh.hasOwnProperty('normals')) {
|
||||
meshBuilder.AddFloatAttributeToMesh(
|
||||
dracoMesh, encoderModule.NORMAL, numPoints, 3, mesh.normals);
|
||||
}
|
||||
if (mesh.hasOwnProperty('colors')) {
|
||||
meshBuilder.AddFloatAttributeToMesh(
|
||||
dracoMesh, encoderModule.COLOR, numPoints, 3, mesh.colors);
|
||||
}
|
||||
if (mesh.hasOwnProperty('texcoords')) {
|
||||
meshBuilder.AddFloatAttributeToMesh(
|
||||
dracoMesh, encoderModule.TEX_COORD, numPoints, 3, mesh.texcoords);
|
||||
}
|
||||
|
||||
if (method === "edgebreaker") {
|
||||
encoder.SetEncodingMethod(encoderModule.MESH_EDGEBREAKER_ENCODING);
|
||||
} else if (method === "sequential") {
|
||||
encoder.SetEncodingMethod(encoderModule.MESH_SEQUENTIAL_ENCODING);
|
||||
}
|
||||
|
||||
const encodedData = new encoderModule.DracoInt8Array();
|
||||
// Use default encoding setting.
|
||||
const encodedLen = encoder.EncodeMeshToDracoBuffer(dracoMesh,
|
||||
encodedData);
|
||||
encoderModule.destroy(dracoMesh);
|
||||
encoderModule.destroy(encoder);
|
||||
encoderModule.destroy(meshBuilder);
|
||||
|
||||
~~~~~
|
||||
Please see [src/draco/javascript/emscripten/draco_web_encoder.idl](src/draco/javascript/emscripten/draco_web_encoder.idl) for the full API.
|
||||
|
||||
Javascript Decoder API
|
||||
----------------------
|
||||
|
||||
The Javascript decoder is located in [javascript/draco_decoder.js](javascript/draco_decoder.js). The
|
||||
Javascript decoder can decode mesh and point cloud. In order to use the
|
||||
decoder, you must first create an instance of `DracoDecoderModule`. The
|
||||
instance is then used to create `DecoderBuffer` and `Decoder` objects. Set
|
||||
the encoded data in the `DecoderBuffer`. Then call `GetEncodedGeometryType()`
|
||||
to identify the type of geometry, e.g. mesh or point cloud. Then call either
|
||||
`DecodeBufferToMesh()` or `DecodeBufferToPointCloud()`, which will return
|
||||
a Mesh object or a point cloud. For example:
|
||||
|
||||
~~~~~ js
|
||||
// Create the Draco decoder.
|
||||
const decoderModule = DracoDecoderModule();
|
||||
const buffer = new decoderModule.DecoderBuffer();
|
||||
buffer.Init(byteArray, byteArray.length);
|
||||
|
||||
// Create a buffer to hold the encoded data.
|
||||
const decoder = new decoderModule.Decoder();
|
||||
const geometryType = decoder.GetEncodedGeometryType(buffer);
|
||||
|
||||
// Decode the encoded geometry.
|
||||
let outputGeometry;
|
||||
let status;
|
||||
if (geometryType == decoderModule.TRIANGULAR_MESH) {
|
||||
outputGeometry = new decoderModule.Mesh();
|
||||
status = decoder.DecodeBufferToMesh(buffer, outputGeometry);
|
||||
} else {
|
||||
outputGeometry = new decoderModule.PointCloud();
|
||||
status = decoder.DecodeBufferToPointCloud(buffer, outputGeometry);
|
||||
}
|
||||
|
||||
// You must explicitly delete objects created from the DracoDecoderModule
|
||||
// or Decoder.
|
||||
decoderModule.destroy(outputGeometry);
|
||||
decoderModule.destroy(decoder);
|
||||
decoderModule.destroy(buffer);
|
||||
~~~~~
|
||||
|
||||
Please see [src/draco/javascript/emscripten/draco_web_decoder.idl](src/draco/javascript/emscripten/draco_web_decoder.idl) for the full API.
|
||||
|
||||
Javascript Decoder Performance
|
||||
------------------------------
|
||||
|
||||
The Javascript decoder is built with dynamic memory. This will let the decoder
|
||||
work with all of the compressed data. But this option is not the fastest.
|
||||
Pre-allocating the memory sees about a 2x decoder speed improvement. If you
|
||||
know all of your project's memory requirements, you can turn on static memory
|
||||
by changing `CMakeLists.txt` accordingly.
|
||||
|
||||
Metadata API
|
||||
------------
|
||||
Starting from v1.0, Draco provides metadata functionality for encoding data
|
||||
other than geometry. It could be used to encode any custom data along with the
|
||||
geometry. For example, we can enable metadata functionality to encode the name
|
||||
of attributes, name of sub-objects and customized information.
|
||||
For one mesh and point cloud, it can have one top-level geometry metadata class.
|
||||
The top-level metadata then can have hierarchical metadata. Other than that,
|
||||
the top-level metadata can have metadata for each attribute which is called
|
||||
attribute metadata. The attribute metadata should be initialized with the
|
||||
correspondent attribute id within the mesh. The metadata API is provided both
|
||||
in C++ and Javascript.
|
||||
For example, to add metadata in C++:
|
||||
|
||||
~~~~~ cpp
|
||||
draco::PointCloud pc;
|
||||
// Add metadata for the geometry.
|
||||
std::unique_ptr<draco::GeometryMetadata> metadata =
|
||||
std::unique_ptr<draco::GeometryMetadata>(new draco::GeometryMetadata());
|
||||
metadata->AddEntryString("description", "This is an example.");
|
||||
pc.AddMetadata(std::move(metadata));
|
||||
|
||||
// Add metadata for attributes.
|
||||
draco::GeometryAttribute pos_att;
|
||||
pos_att.Init(draco::GeometryAttribute::POSITION, nullptr, 3,
|
||||
draco::DT_FLOAT32, false, 12, 0);
|
||||
const uint32_t pos_att_id = pc.AddAttribute(pos_att, false, 0);
|
||||
|
||||
std::unique_ptr<draco::AttributeMetadata> pos_metadata =
|
||||
std::unique_ptr<draco::AttributeMetadata>(
|
||||
new draco::AttributeMetadata(pos_att_id));
|
||||
pos_metadata->AddEntryString("name", "position");
|
||||
|
||||
// Directly add attribute metadata to geometry.
|
||||
// You can do this without explicitly add |GeometryMetadata| to mesh.
|
||||
pc.AddAttributeMetadata(pos_att_id, std::move(pos_metadata));
|
||||
~~~~~
|
||||
|
||||
To read metadata from a geometry in C++:
|
||||
|
||||
~~~~~ cpp
|
||||
// Get metadata for the geometry.
|
||||
const draco::GeometryMetadata *pc_metadata = pc.GetMetadata();
|
||||
|
||||
// Request metadata for a specific attribute.
|
||||
const draco::AttributeMetadata *requested_pos_metadata =
|
||||
pc.GetAttributeMetadataByStringEntry("name", "position");
|
||||
~~~~~
|
||||
|
||||
Please see [src/draco/metadata](src/draco/metadata) and [src/draco/point_cloud](src/draco/point_cloud) for the full API.
|
||||
|
||||
NPM Package
|
||||
-----------
|
||||
Draco NPM NodeJS package is located in [javascript/npm/draco3d](javascript/npm/draco3d). Please see the
|
||||
doc in the folder for detailed usage.
|
||||
|
||||
three.js Renderer Example
|
||||
-------------------------
|
||||
|
||||
Here's an [example] of a geometric compressed with Draco loaded via a
|
||||
Javascript decoder using the `three.js` renderer.
|
||||
|
||||
Please see the [javascript/example/README.md](javascript/example/README.md) file for more information.
|
||||
|
||||
Support
|
||||
=======
|
||||
|
||||
For questions/comments please email <draco-3d-discuss@googlegroups.com>
|
||||
|
||||
If you have found an error in this library, please file an issue at
|
||||
<https://github.com/google/draco/issues>
|
||||
|
||||
Patches are encouraged, and may be submitted by forking this project and
|
||||
submitting a pull request through GitHub. See [CONTRIBUTING] for more detail.
|
||||
|
||||
License
|
||||
=======
|
||||
Licensed under the Apache License, Version 2.0 (the "License"); you may not
|
||||
use this file except in compliance with the License. You may obtain a copy of
|
||||
the License at
|
||||
|
||||
<http://www.apache.org/licenses/LICENSE-2.0>
|
||||
|
||||
Unless required by applicable law or agreed to in writing, software
|
||||
distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
||||
WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
||||
License for the specific language governing permissions and limitations under
|
||||
the License.
|
||||
|
||||
References
|
||||
==========
|
||||
[example]:https://storage.googleapis.com/demos.webmproject.org/draco/draco_loader_throw.html
|
||||
[meshes]: https://en.wikipedia.org/wiki/Polygon_mesh
|
||||
[point clouds]: https://en.wikipedia.org/wiki/Point_cloud
|
||||
[Bunny]: https://graphics.stanford.edu/data/3Dscanrep/
|
||||
[CONTRIBUTING]: https://raw.githubusercontent.com/google/draco/master/CONTRIBUTING.md
|
||||
|
||||
Bunny model from Stanford's graphic department <https://graphics.stanford.edu/data/3Dscanrep/>
|
||||
|
|
@ -0,0 +1,3 @@
|
|||
@PACKAGE_INIT@
|
||||
set_and_check(draco_INCLUDE_DIR "@PACKAGE_draco_include_install_dir@")
|
||||
set_and_check(draco_LIBRARY_DIR "@PACKAGE_draco_lib_install_dir@")
|
||||
|
|
@ -0,0 +1,56 @@
|
|||
# Finddraco
|
||||
#
|
||||
# Locates draco and sets the following variables:
|
||||
#
|
||||
# draco_FOUND draco_INCLUDE_DIRS draco_LIBARY_DIRS draco_LIBRARIES
|
||||
# draco_VERSION_STRING
|
||||
#
|
||||
# draco_FOUND is set to YES only when all other variables are successfully
|
||||
# configured.
|
||||
|
||||
unset(draco_FOUND)
|
||||
unset(draco_INCLUDE_DIRS)
|
||||
unset(draco_LIBRARY_DIRS)
|
||||
unset(draco_LIBRARIES)
|
||||
unset(draco_VERSION_STRING)
|
||||
|
||||
mark_as_advanced(draco_FOUND)
|
||||
mark_as_advanced(draco_INCLUDE_DIRS)
|
||||
mark_as_advanced(draco_LIBRARY_DIRS)
|
||||
mark_as_advanced(draco_LIBRARIES)
|
||||
mark_as_advanced(draco_VERSION_STRING)
|
||||
|
||||
set(draco_version_file_no_prefix "draco/src/draco/core/draco_version.h")
|
||||
|
||||
# Set draco_INCLUDE_DIRS
|
||||
find_path(draco_INCLUDE_DIRS NAMES "${draco_version_file_no_prefix}")
|
||||
|
||||
# Extract the version string from draco_version.h.
|
||||
if(draco_INCLUDE_DIRS)
|
||||
set(draco_version_file
|
||||
"${draco_INCLUDE_DIRS}/draco/src/draco/core/draco_version.h")
|
||||
file(STRINGS "${draco_version_file}" draco_version REGEX "kdracoVersion")
|
||||
list(GET draco_version 0 draco_version)
|
||||
string(REPLACE "static const char kdracoVersion[] = " "" draco_version
|
||||
"${draco_version}")
|
||||
string(REPLACE ";" "" draco_version "${draco_version}")
|
||||
string(REPLACE "\"" "" draco_version "${draco_version}")
|
||||
set(draco_VERSION_STRING ${draco_version})
|
||||
endif()
|
||||
|
||||
# Find the library.
|
||||
if(BUILD_SHARED_LIBS)
|
||||
find_library(draco_LIBRARIES NAMES draco.dll libdraco.dylib libdraco.so)
|
||||
else()
|
||||
find_library(draco_LIBRARIES NAMES draco.lib libdraco.a)
|
||||
endif()
|
||||
|
||||
# Store path to library.
|
||||
get_filename_component(draco_LIBRARY_DIRS ${draco_LIBRARIES} DIRECTORY)
|
||||
|
||||
if(draco_INCLUDE_DIRS
|
||||
AND draco_LIBRARY_DIRS
|
||||
AND draco_LIBRARIES
|
||||
AND draco_VERSION_STRING)
|
||||
set(draco_FOUND YES)
|
||||
endif()
|
||||
|
|
@ -0,0 +1,220 @@
|
|||
if(DRACO_CMAKE_COMPILER_FLAGS_CMAKE_)
|
||||
return()
|
||||
endif()
|
||||
set(DRACO_CMAKE_COMPILER_FLAGS_CMAKE_ 1)
|
||||
|
||||
include(CheckCCompilerFlag)
|
||||
include(CheckCXXCompilerFlag)
|
||||
include("${draco_root}/cmake/compiler_tests.cmake")
|
||||
|
||||
# Strings used to cache failed C/CXX flags.
|
||||
set(DRACO_FAILED_C_FLAGS)
|
||||
set(DRACO_FAILED_CXX_FLAGS)
|
||||
|
||||
# Checks C compiler for support of $c_flag. Adds $c_flag to $CMAKE_C_FLAGS when
|
||||
# the compile test passes. Caches $c_flag in $DRACO_FAILED_C_FLAGS when the test
|
||||
# fails.
|
||||
macro(add_c_flag_if_supported c_flag)
|
||||
unset(C_FLAG_FOUND CACHE)
|
||||
string(FIND "${CMAKE_C_FLAGS}" "${c_flag}" C_FLAG_FOUND)
|
||||
unset(C_FLAG_FAILED CACHE)
|
||||
string(FIND "${DRACO_FAILED_C_FLAGS}" "${c_flag}" C_FLAG_FAILED)
|
||||
|
||||
if(${C_FLAG_FOUND} EQUAL -1 AND ${C_FLAG_FAILED} EQUAL -1)
|
||||
unset(C_FLAG_SUPPORTED CACHE)
|
||||
message("Checking C compiler flag support for: " ${c_flag})
|
||||
check_c_compiler_flag("${c_flag}" C_FLAG_SUPPORTED)
|
||||
if(${C_FLAG_SUPPORTED})
|
||||
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${c_flag}" CACHE STRING "")
|
||||
else()
|
||||
set(DRACO_FAILED_C_FLAGS
|
||||
"${DRACO_FAILED_C_FLAGS} ${c_flag}"
|
||||
CACHE STRING "" FORCE)
|
||||
endif()
|
||||
endif()
|
||||
endmacro()
|
||||
|
||||
# Checks C++ compiler for support of $cxx_flag. Adds $cxx_flag to
|
||||
# $CMAKE_CXX_FLAGS when the compile test passes. Caches $c_flag in
|
||||
# $DRACO_FAILED_CXX_FLAGS when the test fails.
|
||||
macro(add_cxx_flag_if_supported cxx_flag)
|
||||
unset(CXX_FLAG_FOUND CACHE)
|
||||
string(FIND "${CMAKE_CXX_FLAGS}" "${cxx_flag}" CXX_FLAG_FOUND)
|
||||
unset(CXX_FLAG_FAILED CACHE)
|
||||
string(FIND "${DRACO_FAILED_CXX_FLAGS}" "${cxx_flag}" CXX_FLAG_FAILED)
|
||||
|
||||
if(${CXX_FLAG_FOUND} EQUAL -1 AND ${CXX_FLAG_FAILED} EQUAL -1)
|
||||
unset(CXX_FLAG_SUPPORTED CACHE)
|
||||
message("Checking CXX compiler flag support for: " ${cxx_flag})
|
||||
check_cxx_compiler_flag("${cxx_flag}" CXX_FLAG_SUPPORTED)
|
||||
if(${CXX_FLAG_SUPPORTED})
|
||||
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${cxx_flag}" CACHE STRING "")
|
||||
else()
|
||||
set(DRACO_FAILED_CXX_FLAGS
|
||||
"${DRACO_FAILED_CXX_FLAGS} ${cxx_flag}"
|
||||
CACHE STRING "" FORCE)
|
||||
endif()
|
||||
endif()
|
||||
endmacro()
|
||||
|
||||
# Convenience method for adding a flag to both the C and C++ compiler command
|
||||
# lines.
|
||||
macro(add_compiler_flag_if_supported flag)
|
||||
add_c_flag_if_supported(${flag})
|
||||
add_cxx_flag_if_supported(${flag})
|
||||
endmacro()
|
||||
|
||||
# Checks C compiler for support of $c_flag and terminates generation when
|
||||
# support is not present.
|
||||
macro(require_c_flag c_flag update_c_flags)
|
||||
unset(C_FLAG_FOUND CACHE)
|
||||
string(FIND "${CMAKE_C_FLAGS}" "${c_flag}" C_FLAG_FOUND)
|
||||
|
||||
if(${C_FLAG_FOUND} EQUAL -1)
|
||||
unset(HAVE_C_FLAG CACHE)
|
||||
message("Checking C compiler flag support for: " ${c_flag})
|
||||
check_c_compiler_flag("${c_flag}" HAVE_C_FLAG)
|
||||
if(NOT ${HAVE_C_FLAG})
|
||||
message(
|
||||
FATAL_ERROR "${PROJECT_NAME} requires support for C flag: ${c_flag}.")
|
||||
endif()
|
||||
if(${update_c_flags})
|
||||
set(CMAKE_C_FLAGS "${c_flag} ${CMAKE_C_FLAGS}" CACHE STRING "" FORCE)
|
||||
endif()
|
||||
endif()
|
||||
endmacro()
|
||||
|
||||
# Checks CXX compiler for support of $cxx_flag and terminates generation when
|
||||
# support is not present.
|
||||
macro(require_cxx_flag cxx_flag update_cxx_flags)
|
||||
unset(CXX_FLAG_FOUND CACHE)
|
||||
string(FIND "${CMAKE_CXX_FLAGS}" "${cxx_flag}" CXX_FLAG_FOUND)
|
||||
|
||||
if(${CXX_FLAG_FOUND} EQUAL -1)
|
||||
unset(HAVE_CXX_FLAG CACHE)
|
||||
message("Checking CXX compiler flag support for: " ${cxx_flag})
|
||||
check_cxx_compiler_flag("${cxx_flag}" HAVE_CXX_FLAG)
|
||||
if(NOT ${HAVE_CXX_FLAG})
|
||||
message(
|
||||
FATAL_ERROR
|
||||
"${PROJECT_NAME} requires support for CXX flag: ${cxx_flag}.")
|
||||
endif()
|
||||
if(${update_cxx_flags})
|
||||
set(CMAKE_CXX_FLAGS
|
||||
"${cxx_flag} ${CMAKE_CXX_FLAGS}"
|
||||
CACHE STRING "" FORCE)
|
||||
endif()
|
||||
endif()
|
||||
endmacro()
|
||||
|
||||
# Checks for support of $flag by both the C and CXX compilers. Terminates
|
||||
# generation when support is not present in both compilers.
|
||||
macro(require_compiler_flag flag update_cmake_flags)
|
||||
require_c_flag(${flag} ${update_cmake_flags})
|
||||
require_cxx_flag(${flag} ${update_cmake_flags})
|
||||
endmacro()
|
||||
|
||||
# Checks only non-MSVC targets for support of $c_flag and terminates generation
|
||||
# when support is not present.
|
||||
macro(require_c_flag_nomsvc c_flag update_c_flags)
|
||||
if(NOT MSVC)
|
||||
require_c_flag(${c_flag} ${update_c_flags})
|
||||
endif()
|
||||
endmacro()
|
||||
|
||||
# Checks only non-MSVC targets for support of $cxx_flag and terminates
|
||||
# generation when support is not present.
|
||||
macro(require_cxx_flag_nomsvc cxx_flag update_cxx_flags)
|
||||
if(NOT MSVC)
|
||||
require_cxx_flag(${cxx_flag} ${update_cxx_flags})
|
||||
endif()
|
||||
endmacro()
|
||||
|
||||
# Checks only non-MSVC targets for support of $flag by both the C and CXX
|
||||
# compilers. Terminates generation when support is not present in both
|
||||
# compilers.
|
||||
macro(require_compiler_flag_nomsvc flag update_cmake_flags)
|
||||
require_c_flag_nomsvc(${flag} ${update_cmake_flags})
|
||||
require_cxx_flag_nomsvc(${flag} ${update_cmake_flags})
|
||||
endmacro()
|
||||
|
||||
# Adds $flag to assembler command line.
|
||||
macro(append_as_flag flag)
|
||||
unset(AS_FLAG_FOUND CACHE)
|
||||
string(FIND "${DRACO_AS_FLAGS}" "${flag}" AS_FLAG_FOUND)
|
||||
|
||||
if(${AS_FLAG_FOUND} EQUAL -1)
|
||||
set(DRACO_AS_FLAGS "${DRACO_AS_FLAGS} ${flag}")
|
||||
endif()
|
||||
endmacro()
|
||||
|
||||
# Adds $flag to the C compiler command line.
|
||||
macro(append_c_flag flag)
|
||||
unset(C_FLAG_FOUND CACHE)
|
||||
string(FIND "${CMAKE_C_FLAGS}" "${flag}" C_FLAG_FOUND)
|
||||
|
||||
if(${C_FLAG_FOUND} EQUAL -1)
|
||||
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${flag}")
|
||||
endif()
|
||||
endmacro()
|
||||
|
||||
# Adds $flag to the CXX compiler command line.
|
||||
macro(append_cxx_flag flag)
|
||||
unset(CXX_FLAG_FOUND CACHE)
|
||||
string(FIND "${CMAKE_CXX_FLAGS}" "${flag}" CXX_FLAG_FOUND)
|
||||
|
||||
if(${CXX_FLAG_FOUND} EQUAL -1)
|
||||
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${flag}")
|
||||
endif()
|
||||
endmacro()
|
||||
|
||||
# Adds $flag to the C and CXX compiler command lines.
|
||||
macro(append_compiler_flag flag)
|
||||
append_c_flag(${flag})
|
||||
append_cxx_flag(${flag})
|
||||
endmacro()
|
||||
|
||||
# Adds $flag to the executable linker command line.
|
||||
macro(append_exe_linker_flag flag)
|
||||
unset(LINKER_FLAG_FOUND CACHE)
|
||||
string(FIND "${CMAKE_EXE_LINKER_FLAGS}" "${flag}" LINKER_FLAG_FOUND)
|
||||
|
||||
if(${LINKER_FLAG_FOUND} EQUAL -1)
|
||||
set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${flag}")
|
||||
endif()
|
||||
endmacro()
|
||||
|
||||
# Adds $flag to the link flags for $target.
|
||||
function(append_link_flag_to_target target flags)
|
||||
unset(target_link_flags)
|
||||
get_target_property(target_link_flags ${target} LINK_FLAGS)
|
||||
|
||||
if(target_link_flags)
|
||||
unset(link_flag_found)
|
||||
string(FIND "${target_link_flags}" "${flags}" link_flag_found)
|
||||
|
||||
if(NOT ${link_flag_found} EQUAL -1)
|
||||
return()
|
||||
endif()
|
||||
|
||||
set(target_link_flags "${target_link_flags} ${flags}")
|
||||
else()
|
||||
set(target_link_flags "${flags}")
|
||||
endif()
|
||||
|
||||
set_target_properties(${target} PROPERTIES LINK_FLAGS ${target_link_flags})
|
||||
endfunction()
|
||||
|
||||
# Adds $flag to executable linker flags, and makes sure C/CXX builds still work.
|
||||
macro(require_linker_flag flag)
|
||||
append_exe_linker_flag(${flag})
|
||||
|
||||
unset(c_passed)
|
||||
draco_check_c_compiles("LINKER_FLAG_C_TEST(${flag})" "" c_passed)
|
||||
unset(cxx_passed)
|
||||
draco_check_cxx_compiles("LINKER_FLAG_CXX_TEST(${flag})" "" cxx_passed)
|
||||
|
||||
if(NOT c_passed OR NOT cxx_passed)
|
||||
message(FATAL_ERROR "Linker flag test for ${flag} failed.")
|
||||
endif()
|
||||
endmacro()
|
||||
|
|
@ -0,0 +1,103 @@
|
|||
if(DRACO_CMAKE_COMPILER_TESTS_CMAKE_)
|
||||
return()
|
||||
endif()
|
||||
set(DRACO_CMAKE_COMPILER_TESTS_CMAKE_ 1)
|
||||
|
||||
include(CheckCSourceCompiles)
|
||||
include(CheckCXXSourceCompiles)
|
||||
|
||||
# The basic main() macro used in all compile tests.
|
||||
set(DRACO_C_MAIN "\nint main(void) { return 0; }")
|
||||
set(DRACO_CXX_MAIN "\nint main() { return 0; }")
|
||||
|
||||
# Strings containing the names of passed and failed tests.
|
||||
set(DRACO_C_PASSED_TESTS)
|
||||
set(DRACO_C_FAILED_TESTS)
|
||||
set(DRACO_CXX_PASSED_TESTS)
|
||||
set(DRACO_CXX_FAILED_TESTS)
|
||||
|
||||
macro(draco_push_var var new_value)
|
||||
set(SAVED_${var} ${var})
|
||||
set(${var} ${new_value})
|
||||
endmacro()
|
||||
|
||||
macro(draco_pop_var var)
|
||||
set(var ${SAVED_${var}})
|
||||
unset(SAVED_${var})
|
||||
endmacro()
|
||||
|
||||
# Confirms $test_source compiles and stores $test_name in one of
|
||||
# $DRACO_C_PASSED_TESTS or $DRACO_C_FAILED_TESTS depending on out come. When the
|
||||
# test passes $result_var is set to 1. When it fails $result_var is unset. The
|
||||
# test is not run if the test name is found in either of the passed or failed
|
||||
# test variables.
|
||||
macro(draco_check_c_compiles test_name test_source result_var)
|
||||
unset(C_TEST_PASSED CACHE)
|
||||
unset(C_TEST_FAILED CACHE)
|
||||
string(FIND "${DRACO_C_PASSED_TESTS}" "${test_name}" C_TEST_PASSED)
|
||||
string(FIND "${DRACO_C_FAILED_TESTS}" "${test_name}" C_TEST_FAILED)
|
||||
if(${C_TEST_PASSED} EQUAL -1 AND ${C_TEST_FAILED} EQUAL -1)
|
||||
unset(C_TEST_COMPILED CACHE)
|
||||
message("Running C compiler test: ${test_name}")
|
||||
check_c_source_compiles("${test_source} ${DRACO_C_MAIN}" C_TEST_COMPILED)
|
||||
set(${result_var} ${C_TEST_COMPILED})
|
||||
|
||||
if(${C_TEST_COMPILED})
|
||||
set(DRACO_C_PASSED_TESTS "${DRACO_C_PASSED_TESTS} ${test_name}")
|
||||
else()
|
||||
set(DRACO_C_FAILED_TESTS "${DRACO_C_FAILED_TESTS} ${test_name}")
|
||||
message("C Compiler test ${test_name} failed.")
|
||||
endif()
|
||||
elseif(NOT ${C_TEST_PASSED} EQUAL -1)
|
||||
set(${result_var} 1)
|
||||
else() # ${C_TEST_FAILED} NOT EQUAL -1
|
||||
unset(${result_var})
|
||||
endif()
|
||||
endmacro()
|
||||
|
||||
# Confirms $test_source compiles and stores $test_name in one of
|
||||
# $DRACO_CXX_PASSED_TESTS or $DRACO_CXX_FAILED_TESTS depending on out come. When
|
||||
# the test passes $result_var is set to 1. When it fails $result_var is unset.
|
||||
# The test is not run if the test name is found in either of the passed or
|
||||
# failed test variables.
|
||||
macro(draco_check_cxx_compiles test_name test_source result_var)
|
||||
unset(CXX_TEST_PASSED CACHE)
|
||||
unset(CXX_TEST_FAILED CACHE)
|
||||
string(FIND "${DRACO_CXX_PASSED_TESTS}" "${test_name}" CXX_TEST_PASSED)
|
||||
string(FIND "${DRACO_CXX_FAILED_TESTS}" "${test_name}" CXX_TEST_FAILED)
|
||||
if(${CXX_TEST_PASSED} EQUAL -1 AND ${CXX_TEST_FAILED} EQUAL -1)
|
||||
unset(CXX_TEST_COMPILED CACHE)
|
||||
message("Running CXX compiler test: ${test_name}")
|
||||
check_cxx_source_compiles("${test_source} ${DRACO_CXX_MAIN}"
|
||||
CXX_TEST_COMPILED)
|
||||
set(${result_var} ${CXX_TEST_COMPILED})
|
||||
|
||||
if(${CXX_TEST_COMPILED})
|
||||
set(DRACO_CXX_PASSED_TESTS "${DRACO_CXX_PASSED_TESTS} ${test_name}")
|
||||
else()
|
||||
set(DRACO_CXX_FAILED_TESTS "${DRACO_CXX_FAILED_TESTS} ${test_name}")
|
||||
message("CXX Compiler test ${test_name} failed.")
|
||||
endif()
|
||||
elseif(NOT ${CXX_TEST_PASSED} EQUAL -1)
|
||||
set(${result_var} 1)
|
||||
else() # ${CXX_TEST_FAILED} NOT EQUAL -1
|
||||
unset(${result_var})
|
||||
endif()
|
||||
endmacro()
|
||||
|
||||
# Convenience macro that confirms $test_source compiles as C and C++.
|
||||
# $result_var is set to 1 when both tests are successful, and 0 when one or both
|
||||
# tests fail. Note: This macro is intended to be used to write to result
|
||||
# variables that are expanded via configure_file(). $result_var is set to 1 or 0
|
||||
# to allow direct usage of the value in generated source files.
|
||||
macro(draco_check_source_compiles test_name test_source result_var)
|
||||
unset(C_PASSED)
|
||||
unset(CXX_PASSED)
|
||||
draco_check_c_compiles(${test_name} ${test_source} C_PASSED)
|
||||
draco_check_cxx_compiles(${test_name} ${test_source} CXX_PASSED)
|
||||
if(${C_PASSED} AND ${CXX_PASSED})
|
||||
set(${result_var} 1)
|
||||
else()
|
||||
set(${result_var} 0)
|
||||
endif()
|
||||
endmacro()
|
||||
|
|
@ -0,0 +1,2 @@
|
|||
set(DRACO_INCLUDE_DIRS "@DRACO_INCLUDE_DIRS@")
|
||||
set(DRACO_LIBRARIES "draco")
|
||||
|
|
@ -0,0 +1,11 @@
|
|||
prefix=@prefix@
|
||||
exec_prefix=@exec_prefix@
|
||||
libdir=@libdir@
|
||||
includedir=@includedir@
|
||||
|
||||
Name: @PROJECT_NAME@
|
||||
Description: Draco geometry de(com)pression library.
|
||||
Version: @DRACO_VERSION@
|
||||
Cflags: -I${includedir}
|
||||
Libs: -L${libdir} -ldraco
|
||||
Libs.private: @CMAKE_THREAD_LIBS_INIT@
|
||||
|
|
@ -0,0 +1,117 @@
|
|||
if(DRACO_CMAKE_DRACO_BUILD_DEFINITIONS_CMAKE_)
|
||||
return()
|
||||
endif() # DRACO_CMAKE_DRACO_BUILD_DEFINITIONS_CMAKE_
|
||||
set(DRACO_CMAKE_DRACO_BUILD_DEFINITIONS_CMAKE_ 1)
|
||||
|
||||
# Utility for controlling the main draco library dependency. This changes in
|
||||
# shared builds, and when an optional target requires a shared library build.
|
||||
macro(set_draco_target)
|
||||
if(MSVC OR WIN32)
|
||||
set(draco_dependency draco)
|
||||
set(draco_plugin_dependency ${draco_dependency})
|
||||
else()
|
||||
if(BUILD_SHARED_LIBS)
|
||||
set(draco_dependency draco_shared)
|
||||
else()
|
||||
set(draco_dependency draco_static)
|
||||
endif()
|
||||
set(draco_plugin_dependency draco_static)
|
||||
endif()
|
||||
|
||||
if(BUILD_SHARED_LIBS)
|
||||
set(CMAKE_POSITION_INDEPENDENT_CODE ON)
|
||||
endif()
|
||||
endmacro()
|
||||
|
||||
# Configures flags and sets build system globals.
|
||||
macro(draco_set_build_definitions)
|
||||
string(TOLOWER "${CMAKE_BUILD_TYPE}" build_type_lowercase)
|
||||
|
||||
if(build_type_lowercase MATCHES "rel" AND DRACO_FAST)
|
||||
if(MSVC)
|
||||
list(APPEND draco_msvc_cxx_flags "/Ox")
|
||||
else()
|
||||
list(APPEND draco_base_cxx_flags "-O3")
|
||||
endif()
|
||||
endif()
|
||||
|
||||
draco_load_version_info()
|
||||
set(DRACO_SOVERSION 1)
|
||||
|
||||
list(APPEND draco_include_paths "${draco_root}" "${draco_root}/src"
|
||||
"${draco_build}")
|
||||
|
||||
if(DRACO_ABSL)
|
||||
list(APPEND draco_include_path "${draco_root}/third_party/abseil-cpp")
|
||||
endif()
|
||||
|
||||
|
||||
list(APPEND draco_gtest_include_paths
|
||||
"${draco_root}/../googletest/googlemock/include"
|
||||
"${draco_root}/../googletest/googlemock"
|
||||
"${draco_root}/../googletest/googletest/include"
|
||||
"${draco_root}/../googletest/googletest")
|
||||
list(APPEND draco_test_include_paths ${draco_include_paths}
|
||||
${draco_gtest_include_paths})
|
||||
list(APPEND draco_defines "DRACO_CMAKE=1"
|
||||
"DRACO_FLAGS_SRCDIR=\"${draco_root}\""
|
||||
"DRACO_FLAGS_TMPDIR=\"/tmp\"")
|
||||
|
||||
if(MSVC OR WIN32)
|
||||
list(APPEND draco_defines "_CRT_SECURE_NO_DEPRECATE=1" "NOMINMAX=1")
|
||||
|
||||
if(BUILD_SHARED_LIBS)
|
||||
set(CMAKE_WINDOWS_EXPORT_ALL_SYMBOLS TRUE)
|
||||
endif()
|
||||
endif()
|
||||
|
||||
if(ANDROID)
|
||||
if(CMAKE_ANDROID_ARCH_ABI STREQUAL "armeabi-v7a")
|
||||
set(CMAKE_ANDROID_ARM_MODE ON)
|
||||
endif()
|
||||
endif()
|
||||
|
||||
set_draco_target()
|
||||
|
||||
if(CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
|
||||
if(CMAKE_CXX_COMPILER_VERSION VERSION_LESS "6")
|
||||
# Quiet warnings in copy-list-initialization where {} elision has always
|
||||
# been allowed.
|
||||
list(APPEND draco_clang_cxx_flags "-Wno-missing-braces")
|
||||
endif()
|
||||
endif()
|
||||
|
||||
if(CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
|
||||
if(CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL "7")
|
||||
if(CMAKE_SYSTEM_PROCESSOR STREQUAL "armv7")
|
||||
# Quiet gcc 6 vs 7 abi warnings:
|
||||
# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77728
|
||||
list(APPEND draco_base_cxx_flags "-Wno-psabi")
|
||||
list(APPEND ABSL_GCC_FLAGS "-Wno-psabi")
|
||||
endif()
|
||||
endif()
|
||||
endif()
|
||||
|
||||
# Source file names ending in these suffixes will have the appropriate
|
||||
# compiler flags added to their compile commands to enable intrinsics.
|
||||
set(draco_neon_source_file_suffix "neon.cc")
|
||||
set(draco_sse4_source_file_suffix "sse4.cc")
|
||||
|
||||
if((${CMAKE_CXX_COMPILER_ID}
|
||||
STREQUAL
|
||||
"GNU"
|
||||
AND ${CMAKE_CXX_COMPILER_VERSION} VERSION_LESS 5)
|
||||
OR (${CMAKE_CXX_COMPILER_ID}
|
||||
STREQUAL
|
||||
"Clang"
|
||||
AND ${CMAKE_CXX_COMPILER_VERSION} VERSION_LESS 4))
|
||||
message(
|
||||
WARNING "GNU/GCC < v5 or Clang/LLVM < v4, ENABLING COMPATIBILITY MODE.")
|
||||
draco_enable_feature(FEATURE "DRACO_OLD_GCC")
|
||||
endif()
|
||||
|
||||
if(EMSCRIPTEN)
|
||||
draco_check_emscripten_environment()
|
||||
draco_get_required_emscripten_flags(FLAG_LIST_VAR draco_base_cxx_flags)
|
||||
endif()
|
||||
endmacro()
|
||||
|
|
@ -0,0 +1,28 @@
|
|||
if(DRACO_CMAKE_DRACO_CPU_DETECTION_CMAKE_)
|
||||
return()
|
||||
endif() # DRACO_CMAKE_DRACO_CPU_DETECTION_CMAKE_
|
||||
set(DRACO_CMAKE_DRACO_CPU_DETECTION_CMAKE_ 1)
|
||||
|
||||
# Detect optimizations available for the current target CPU.
|
||||
macro(draco_optimization_detect)
|
||||
if(DRACO_ENABLE_OPTIMIZATIONS)
|
||||
string(TOLOWER "${CMAKE_SYSTEM_PROCESSOR}" cpu_lowercase)
|
||||
if(cpu_lowercase MATCHES "^arm|^aarch64")
|
||||
set(draco_have_neon ON)
|
||||
elseif(cpu_lowercase MATCHES "^x86|amd64")
|
||||
set(draco_have_sse4 ON)
|
||||
endif()
|
||||
endif()
|
||||
|
||||
if(draco_have_neon AND DRACO_ENABLE_NEON)
|
||||
list(APPEND draco_defines "DRACO_ENABLE_NEON=1")
|
||||
else()
|
||||
list(APPEND draco_defines "DRACO_ENABLE_NEON=0")
|
||||
endif()
|
||||
|
||||
if(draco_have_sse4 AND DRACO_ENABLE_SSE4_1)
|
||||
list(APPEND draco_defines "DRACO_ENABLE_SSE4_1=1")
|
||||
else()
|
||||
list(APPEND draco_defines "DRACO_ENABLE_SSE4_1=0")
|
||||
endif()
|
||||
endmacro()
|
||||
|
|
@ -0,0 +1,185 @@
|
|||
if(DRACO_CMAKE_DRACO_EMSCRIPTEN_CMAKE_)
|
||||
return()
|
||||
endif() # DRACO_CMAKE_DRACO_EMSCRIPTEN_CMAKE_
|
||||
|
||||
# Checks environment for Emscripten prerequisites.
|
||||
macro(draco_check_emscripten_environment)
|
||||
if(NOT PYTHONINTERP_FOUND)
|
||||
message(
|
||||
FATAL_ERROR
|
||||
"Python required for Emscripten builds, but cmake cannot find it.")
|
||||
endif()
|
||||
if(NOT EXISTS "$ENV{EMSCRIPTEN}")
|
||||
message(
|
||||
FATAL_ERROR
|
||||
"The EMSCRIPTEN environment variable must be set. See README.md.")
|
||||
endif()
|
||||
endmacro()
|
||||
|
||||
# Obtains the required Emscripten flags for Draco targets.
|
||||
macro(draco_get_required_emscripten_flags)
|
||||
set(em_FLAG_LIST_VAR)
|
||||
set(em_flags)
|
||||
set(em_single_arg_opts FLAG_LIST_VAR)
|
||||
set(em_multi_arg_opts)
|
||||
cmake_parse_arguments(em "${em_flags}" "${em_single_arg_opts}"
|
||||
"${em_multi_arg_opts}" ${ARGN})
|
||||
if(NOT em_FLAG_LIST_VAR)
|
||||
message(FATAL "draco_get_required_emscripten_flags: FLAG_LIST_VAR required")
|
||||
endif()
|
||||
|
||||
if(DRACO_JS_GLUE)
|
||||
unset(required_flags)
|
||||
list(APPEND ${em_FLAG_LIST_VAR} "-sALLOW_MEMORY_GROWTH=1")
|
||||
list(APPEND ${em_FLAG_LIST_VAR} "-Wno-almost-asm")
|
||||
list(APPEND ${em_FLAG_LIST_VAR} "--memory-init-file" "0")
|
||||
list(APPEND ${em_FLAG_LIST_VAR} "-fno-omit-frame-pointer")
|
||||
list(APPEND ${em_FLAG_LIST_VAR} "-sMODULARIZE=1")
|
||||
list(APPEND ${em_FLAG_LIST_VAR} "-sNO_FILESYSTEM=1")
|
||||
list(APPEND ${em_FLAG_LIST_VAR} "-sEXPORTED_RUNTIME_METHODS=[]")
|
||||
list(APPEND ${em_FLAG_LIST_VAR} "-sPRECISE_F32=1")
|
||||
list(APPEND ${em_FLAG_LIST_VAR} "-sNODEJS_CATCH_EXIT=0")
|
||||
list(APPEND ${em_FLAG_LIST_VAR} "-sNODEJS_CATCH_REJECTION=0")
|
||||
|
||||
if(DRACO_FAST)
|
||||
list(APPEND ${em_FLAG_LIST_VAR} "--llvm-lto" "1")
|
||||
endif()
|
||||
if(DRACO_WASM)
|
||||
list(APPEND ${em_FLAG_LIST_VAR} "-sWASM=1")
|
||||
else()
|
||||
list(APPEND ${em_FLAG_LIST_VAR} "-sWASM=0")
|
||||
endif()
|
||||
if(DRACO_IE_COMPATIBLE)
|
||||
list(APPEND ${em_FLAG_LIST_VAR} "-sLEGACY_VM_SUPPORT=1")
|
||||
endif()
|
||||
endif()
|
||||
endmacro()
|
||||
|
||||
# Macro for generating C++ glue code from IDL for Emscripten targets. Executes
|
||||
# python to generate the C++ binding, and establishes dendency: $OUTPUT_PATH.cpp
|
||||
# on $INPUT_IDL.
|
||||
macro(draco_generate_emscripten_glue)
|
||||
set(glue_flags)
|
||||
set(glue_single_arg_opts INPUT_IDL OUTPUT_PATH)
|
||||
set(glue_multi_arg_opts)
|
||||
cmake_parse_arguments(glue "${glue_flags}" "${glue_single_arg_opts}"
|
||||
"${glue_multi_arg_opts}" ${ARGN})
|
||||
|
||||
if(DRACO_VERBOSE GREATER 1)
|
||||
message("--------- draco_generate_emscripten_glue -----------\n"
|
||||
"glue_INPUT_IDL=${glue_INPUT_IDL}\n"
|
||||
"glue_OUTPUT_PATH=${glue_OUTPUT_PATH}\n" ]
|
||||
"----------------------------------------------------\n")
|
||||
endif()
|
||||
|
||||
if(NOT glue_INPUT_IDL OR NOT glue_OUTPUT_PATH)
|
||||
message(
|
||||
FATAL_ERROR
|
||||
"draco_generate_emscripten_glue: INPUT_IDL and OUTPUT_PATH required.")
|
||||
endif()
|
||||
|
||||
# Generate the glue source.
|
||||
execute_process(COMMAND ${PYTHON_EXECUTABLE}
|
||||
$ENV{EMSCRIPTEN}/tools/webidl_binder.py
|
||||
${glue_INPUT_IDL} ${glue_OUTPUT_PATH})
|
||||
if(NOT EXISTS "${glue_OUTPUT_PATH}.cpp")
|
||||
message(FATAL_ERROR "JS glue generation failed for ${glue_INPUT_IDL}.")
|
||||
endif()
|
||||
|
||||
# Create a dependency so that it regenerated on edits.
|
||||
add_custom_command(OUTPUT "${glue_OUTPUT_PATH}.cpp"
|
||||
COMMAND ${PYTHON_EXECUTABLE}
|
||||
$ENV{EMSCRIPTEN}/tools/webidl_binder.py
|
||||
${glue_INPUT_IDL} ${glue_OUTPUT_PATH}
|
||||
DEPENDS ${draco_js_dec_idl}
|
||||
COMMENT "Generating ${glue_OUTPUT_PATH}.cpp."
|
||||
WORKING_DIRECTORY ${draco_build}
|
||||
VERBATIM)
|
||||
endmacro()
|
||||
|
||||
# Wrapper for draco_add_executable() that handles the extra work necessary for
|
||||
# emscripten targets when generating JS glue:
|
||||
#
|
||||
# ~~~
|
||||
# - Set source level dependency on the C++ binding.
|
||||
# - Pre/Post link emscripten magic.
|
||||
#
|
||||
# Required args:
|
||||
# - GLUE_PATH: Base path for glue file. Used to generate .cpp and .js files.
|
||||
# - PRE_LINK_JS_SOURCES: em_link_pre_js() source files.
|
||||
# - POST_LINK_JS_SOURCES: em_link_post_js() source files.
|
||||
# Optional args:
|
||||
# - FEATURES:
|
||||
# ~~~
|
||||
macro(draco_add_emscripten_executable)
|
||||
unset(emexe_NAME)
|
||||
unset(emexe_FEATURES)
|
||||
unset(emexe_SOURCES)
|
||||
unset(emexe_DEFINES)
|
||||
unset(emexe_INCLUDES)
|
||||
unset(emexe_LINK_FLAGS)
|
||||
set(optional_args)
|
||||
set(single_value_args NAME GLUE_PATH)
|
||||
set(multi_value_args SOURCES DEFINES FEATURES INCLUDES LINK_FLAGS
|
||||
PRE_LINK_JS_SOURCES POST_LINK_JS_SOURCES)
|
||||
|
||||
cmake_parse_arguments(emexe "${optional_args}" "${single_value_args}"
|
||||
"${multi_value_args}" ${ARGN})
|
||||
|
||||
if(NOT
|
||||
(emexe_GLUE_PATH
|
||||
AND emexe_POST_LINK_JS_SOURCES
|
||||
AND emexe_PRE_LINK_JS_SOURCES))
|
||||
message(FATAL
|
||||
"draco_add_emscripten_executable: GLUE_PATH PRE_LINK_JS_SOURCES "
|
||||
"POST_LINK_JS_SOURCES args required.")
|
||||
endif()
|
||||
|
||||
if(DRACO_VERBOSE GREATER 1)
|
||||
message("--------- draco_add_emscripten_executable ---------\n"
|
||||
"emexe_NAME=${emexe_NAME}\n"
|
||||
"emexe_SOURCES=${emexe_SOURCES}\n"
|
||||
"emexe_DEFINES=${emexe_DEFINES}\n"
|
||||
"emexe_INCLUDES=${emexe_INCLUDES}\n"
|
||||
"emexe_LINK_FLAGS=${emexe_LINK_FLAGS}\n"
|
||||
"emexe_GLUE_PATH=${emexe_GLUE_PATH}\n"
|
||||
"emexe_FEATURES=${emexe_FEATURES}\n"
|
||||
"emexe_PRE_LINK_JS_SOURCES=${emexe_PRE_LINK_JS_SOURCES}\n"
|
||||
"emexe_POST_LINK_JS_SOURCES=${emexe_POST_LINK_JS_SOURCES}\n"
|
||||
"----------------------------------------------------\n")
|
||||
endif()
|
||||
|
||||
# The Emscripten linker needs the C++ flags in addition to whatever has been
|
||||
# passed in with the target.
|
||||
list(APPEND emexe_LINK_FLAGS ${DRACO_CXX_FLAGS})
|
||||
|
||||
if(DRACO_GLTF)
|
||||
draco_add_executable(NAME
|
||||
${emexe_NAME}
|
||||
OUTPUT_NAME
|
||||
${emexe_NAME}_gltf
|
||||
SOURCES
|
||||
${emexe_SOURCES}
|
||||
DEFINES
|
||||
${emexe_DEFINES}
|
||||
INCLUDES
|
||||
${emexe_INCLUDES}
|
||||
LINK_FLAGS
|
||||
${emexe_LINK_FLAGS})
|
||||
else()
|
||||
draco_add_executable(NAME ${emexe_NAME} SOURCES ${emexe_SOURCES} DEFINES
|
||||
${emexe_DEFINES} INCLUDES ${emexe_INCLUDES} LINK_FLAGS
|
||||
${emexe_LINK_FLAGS})
|
||||
endif()
|
||||
|
||||
foreach(feature ${emexe_FEATURES})
|
||||
draco_enable_feature(FEATURE ${feature} TARGETS ${emexe_NAME})
|
||||
endforeach()
|
||||
|
||||
set_property(SOURCE ${emexe_SOURCES}
|
||||
APPEND
|
||||
PROPERTY OBJECT_DEPENDS "${emexe_GLUE_PATH}.cpp")
|
||||
em_link_pre_js(${emexe_NAME} ${emexe_PRE_LINK_JS_SOURCES})
|
||||
em_link_post_js(${emexe_NAME} "${emexe_GLUE_PATH}.js"
|
||||
${emexe_POST_LINK_JS_SOURCES})
|
||||
endmacro()
|
||||
|
|
@ -0,0 +1,63 @@
|
|||
if(DRACO_CMAKE_DRACO_FEATURES_CMAKE_)
|
||||
return()
|
||||
endif()
|
||||
set(DRACO_CMAKE_DRACO_FEATURES_CMAKE_ 1)
|
||||
|
||||
set(draco_features_file_name "${draco_build_dir}/draco/draco_features.h")
|
||||
set(draco_features_list)
|
||||
|
||||
# Macro that handles tracking of Draco preprocessor symbols for the purpose of
|
||||
# producing draco_features.h.
|
||||
#
|
||||
# draco_enable_feature(FEATURE <feature_name> [TARGETS <target_name>]) FEATURE
|
||||
# is required. It should be a Draco preprocessor symbol. TARGETS is optional. It
|
||||
# can be one or more draco targets.
|
||||
#
|
||||
# When the TARGETS argument is not present the preproc symbol is added to
|
||||
# draco_features.h. When it is draco_features.h is unchanged, and
|
||||
# target_compile_options() is called for each target specified.
|
||||
macro(draco_enable_feature)
|
||||
set(def_flags)
|
||||
set(def_single_arg_opts FEATURE)
|
||||
set(def_multi_arg_opts TARGETS)
|
||||
cmake_parse_arguments(DEF "${def_flags}" "${def_single_arg_opts}"
|
||||
"${def_multi_arg_opts}" ${ARGN})
|
||||
if("${DEF_FEATURE}" STREQUAL "")
|
||||
message(FATAL_ERROR "Empty FEATURE passed to draco_enable_feature().")
|
||||
endif()
|
||||
|
||||
# Do nothing/return early if $DEF_FEATURE is already in the list.
|
||||
list(FIND draco_features_list ${DEF_FEATURE} df_index)
|
||||
if(NOT df_index EQUAL -1)
|
||||
return()
|
||||
endif()
|
||||
|
||||
list(LENGTH DEF_TARGETS df_targets_list_length)
|
||||
if(${df_targets_list_length} EQUAL 0)
|
||||
list(APPEND draco_features_list ${DEF_FEATURE})
|
||||
else()
|
||||
foreach(target ${DEF_TARGETS})
|
||||
target_compile_definitions(${target} PRIVATE ${DEF_FEATURE})
|
||||
endforeach()
|
||||
endif()
|
||||
endmacro()
|
||||
|
||||
# Function for generating draco_features.h.
|
||||
function(draco_generate_features_h)
|
||||
file(WRITE "${draco_features_file_name}.new"
|
||||
"// GENERATED FILE -- DO NOT EDIT\n\n" "#ifndef DRACO_FEATURES_H_\n"
|
||||
"#define DRACO_FEATURES_H_\n\n")
|
||||
|
||||
foreach(feature ${draco_features_list})
|
||||
file(APPEND "${draco_features_file_name}.new" "#define ${feature}\n")
|
||||
endforeach()
|
||||
|
||||
file(APPEND "${draco_features_file_name}.new"
|
||||
"\n#endif // DRACO_FEATURES_H_")
|
||||
|
||||
# Will replace ${draco_features_file_name} only if the file content has
|
||||
# changed. This prevents forced Draco rebuilds after CMake runs.
|
||||
configure_file("${draco_features_file_name}.new"
|
||||
"${draco_features_file_name}")
|
||||
file(REMOVE "${draco_features_file_name}.new")
|
||||
endfunction()
|
||||
|
|
@ -0,0 +1,238 @@
|
|||
if(DRACO_CMAKE_DRACO_FLAGS_CMAKE_)
|
||||
return()
|
||||
endif() # DRACO_CMAKE_DRACO_FLAGS_CMAKE_
|
||||
set(DRACO_CMAKE_DRACO_FLAGS_CMAKE_ 1)
|
||||
|
||||
include(CheckCXXCompilerFlag)
|
||||
include(CheckCXXSourceCompiles)
|
||||
|
||||
# Adds compiler flags specified by FLAGS to the sources specified by SOURCES:
|
||||
#
|
||||
# draco_set_compiler_flags_for_sources(SOURCES <sources> FLAGS <flags>)
|
||||
macro(draco_set_compiler_flags_for_sources)
|
||||
unset(compiler_SOURCES)
|
||||
unset(compiler_FLAGS)
|
||||
unset(optional_args)
|
||||
unset(single_value_args)
|
||||
set(multi_value_args SOURCES FLAGS)
|
||||
cmake_parse_arguments(compiler "${optional_args}" "${single_value_args}"
|
||||
"${multi_value_args}" ${ARGN})
|
||||
|
||||
if(NOT (compiler_SOURCES AND compiler_FLAGS))
|
||||
draco_die("draco_set_compiler_flags_for_sources: SOURCES and "
|
||||
"FLAGS required.")
|
||||
endif()
|
||||
|
||||
set_source_files_properties(${compiler_SOURCES} PROPERTIES COMPILE_FLAGS
|
||||
${compiler_FLAGS})
|
||||
|
||||
if(DRACO_VERBOSE GREATER 1)
|
||||
foreach(source ${compiler_SOURCES})
|
||||
foreach(flag ${compiler_FLAGS})
|
||||
message("draco_set_compiler_flags_for_sources: source:${source} "
|
||||
"flag:${flag}")
|
||||
endforeach()
|
||||
endforeach()
|
||||
endif()
|
||||
endmacro()
|
||||
|
||||
# Tests compiler flags stored in list(s) specified by FLAG_LIST_VAR_NAMES, adds
|
||||
# flags to $DRACO_CXX_FLAGS when tests pass. Terminates configuration if
|
||||
# FLAG_REQUIRED is specified and any flag check fails.
|
||||
#
|
||||
# ~~~
|
||||
# draco_test_cxx_flag(<FLAG_LIST_VAR_NAMES <flag list variable(s)>>
|
||||
# [FLAG_REQUIRED])
|
||||
# ~~~
|
||||
macro(draco_test_cxx_flag)
|
||||
unset(cxx_test_FLAG_LIST_VAR_NAMES)
|
||||
unset(cxx_test_FLAG_REQUIRED)
|
||||
unset(single_value_args)
|
||||
set(optional_args FLAG_REQUIRED)
|
||||
set(multi_value_args FLAG_LIST_VAR_NAMES)
|
||||
cmake_parse_arguments(cxx_test "${optional_args}" "${single_value_args}"
|
||||
"${multi_value_args}" ${ARGN})
|
||||
|
||||
if(NOT cxx_test_FLAG_LIST_VAR_NAMES)
|
||||
draco_die("draco_test_cxx_flag: FLAG_LIST_VAR_NAMES required")
|
||||
endif()
|
||||
|
||||
unset(cxx_flags)
|
||||
foreach(list_var ${cxx_test_FLAG_LIST_VAR_NAMES})
|
||||
if(DRACO_VERBOSE)
|
||||
message("draco_test_cxx_flag: adding ${list_var} to cxx_flags")
|
||||
endif()
|
||||
list(APPEND cxx_flags ${${list_var}})
|
||||
endforeach()
|
||||
|
||||
if(DRACO_VERBOSE)
|
||||
message("CXX test: all flags: ${cxx_flags}")
|
||||
endif()
|
||||
|
||||
unset(all_cxx_flags)
|
||||
list(APPEND all_cxx_flags ${DRACO_CXX_FLAGS} ${cxx_flags})
|
||||
|
||||
# Turn off output from check_cxx_source_compiles. Print status directly
|
||||
# instead since the logging messages from check_cxx_source_compiles can be
|
||||
# quite confusing.
|
||||
set(CMAKE_REQUIRED_QUIET TRUE)
|
||||
|
||||
# Run the actual compile test.
|
||||
unset(draco_all_cxx_flags_pass CACHE)
|
||||
message("--- Running combined CXX flags test, flags: ${all_cxx_flags}")
|
||||
check_cxx_compiler_flag("${all_cxx_flags}" draco_all_cxx_flags_pass)
|
||||
|
||||
if(cxx_test_FLAG_REQUIRED AND NOT draco_all_cxx_flags_pass)
|
||||
draco_die("Flag test failed for required flag(s): "
|
||||
"${all_cxx_flags} and FLAG_REQUIRED specified.")
|
||||
endif()
|
||||
|
||||
if(draco_all_cxx_flags_pass)
|
||||
# Test passed: update the global flag list used by the draco target creation
|
||||
# wrappers.
|
||||
set(DRACO_CXX_FLAGS ${cxx_flags})
|
||||
list(REMOVE_DUPLICATES DRACO_CXX_FLAGS)
|
||||
|
||||
if(DRACO_VERBOSE)
|
||||
message("DRACO_CXX_FLAGS=${DRACO_CXX_FLAGS}")
|
||||
endif()
|
||||
|
||||
message("--- Passed combined CXX flags test")
|
||||
else()
|
||||
message("--- Failed combined CXX flags test, testing flags individually.")
|
||||
|
||||
if(cxx_flags)
|
||||
message("--- Testing flags from $cxx_flags: " "${cxx_flags}")
|
||||
foreach(cxx_flag ${cxx_flags})
|
||||
# Since 3.17.0 check_cxx_compiler_flag() sets a normal variable at
|
||||
# parent scope while check_cxx_source_compiles() continues to set an
|
||||
# internal cache variable, so we unset both to avoid the failure /
|
||||
# success state persisting between checks. This has been fixed in newer
|
||||
# CMake releases, but 3.17 is pretty common: we will need this to avoid
|
||||
# weird build breakages while the fix propagates.
|
||||
unset(cxx_flag_test_passed)
|
||||
unset(cxx_flag_test_passed CACHE)
|
||||
message("--- Testing flag: ${cxx_flag}")
|
||||
check_cxx_compiler_flag("${cxx_flag}" cxx_flag_test_passed)
|
||||
|
||||
if(cxx_flag_test_passed)
|
||||
message("--- Passed test for ${cxx_flag}")
|
||||
else()
|
||||
list(REMOVE_ITEM cxx_flags ${cxx_flag})
|
||||
message("--- Failed test for ${cxx_flag}, flag removed.")
|
||||
endif()
|
||||
endforeach()
|
||||
|
||||
set(DRACO_CXX_FLAGS ${cxx_flags})
|
||||
endif()
|
||||
endif()
|
||||
|
||||
if(DRACO_CXX_FLAGS)
|
||||
list(REMOVE_DUPLICATES DRACO_CXX_FLAGS)
|
||||
endif()
|
||||
endmacro()
|
||||
|
||||
# Tests executable linker flags stored in list specified by FLAG_LIST_VAR_NAME,
|
||||
# adds flags to $DRACO_EXE_LINKER_FLAGS when test passes. Terminates
|
||||
# configuration when flag check fails. draco_set_cxx_flags() must be called
|
||||
# before calling this macro because it assumes $DRACO_CXX_FLAGS contains only
|
||||
# valid CXX flags.
|
||||
#
|
||||
# draco_test_exe_linker_flag(<FLAG_LIST_VAR_NAME <flag list variable)>)
|
||||
macro(draco_test_exe_linker_flag)
|
||||
unset(link_FLAG_LIST_VAR_NAME)
|
||||
unset(optional_args)
|
||||
unset(multi_value_args)
|
||||
set(single_value_args FLAG_LIST_VAR_NAME)
|
||||
cmake_parse_arguments(link "${optional_args}" "${single_value_args}"
|
||||
"${multi_value_args}" ${ARGN})
|
||||
|
||||
if(NOT link_FLAG_LIST_VAR_NAME)
|
||||
draco_die("draco_test_link_flag: FLAG_LIST_VAR_NAME required")
|
||||
endif()
|
||||
|
||||
draco_set_and_stringify(DEST linker_flags SOURCE_VARS
|
||||
${link_FLAG_LIST_VAR_NAME})
|
||||
|
||||
if(DRACO_VERBOSE)
|
||||
message("EXE LINKER test: all flags: ${linker_flags}")
|
||||
endif()
|
||||
|
||||
# Tests of $DRACO_CXX_FLAGS have already passed. Include them with the linker
|
||||
# test.
|
||||
draco_set_and_stringify(DEST CMAKE_REQUIRED_FLAGS SOURCE_VARS DRACO_CXX_FLAGS)
|
||||
|
||||
# Cache the global exe linker flags.
|
||||
if(CMAKE_EXE_LINKER_FLAGS)
|
||||
set(cached_CMAKE_EXE_LINKER_FLAGS ${CMAKE_EXE_LINKER_FLAGS})
|
||||
draco_set_and_stringify(DEST CMAKE_EXE_LINKER_FLAGS SOURCE ${linker_flags})
|
||||
endif()
|
||||
|
||||
draco_set_and_stringify(DEST CMAKE_EXE_LINKER_FLAGS SOURCE ${linker_flags}
|
||||
${CMAKE_EXE_LINKER_FLAGS})
|
||||
|
||||
# Turn off output from check_cxx_source_compiles. Print status directly
|
||||
# instead since the logging messages from check_cxx_source_compiles can be
|
||||
# quite confusing.
|
||||
set(CMAKE_REQUIRED_QUIET TRUE)
|
||||
|
||||
message("--- Running EXE LINKER test for flags: ${linker_flags}")
|
||||
|
||||
unset(linker_flag_test_passed CACHE)
|
||||
set(draco_cxx_main "\nint main() { return 0; }")
|
||||
check_cxx_source_compiles("${draco_cxx_main}" linker_flag_test_passed)
|
||||
|
||||
if(NOT linker_flag_test_passed)
|
||||
draco_die("EXE LINKER test failed.")
|
||||
endif()
|
||||
|
||||
message("--- Passed EXE LINKER flag test.")
|
||||
|
||||
# Restore cached global exe linker flags.
|
||||
if(cached_CMAKE_EXE_LINKER_FLAGS)
|
||||
set(CMAKE_EXE_LINKER_FLAGS ${cached_CMAKE_EXE_LINKER_FLAGS})
|
||||
else()
|
||||
unset(CMAKE_EXE_LINKER_FLAGS)
|
||||
endif()
|
||||
endmacro()
|
||||
|
||||
# Runs the draco compiler tests. This macro builds up the list of list var(s)
|
||||
# that is passed to draco_test_cxx_flag().
|
||||
#
|
||||
# Note: draco_set_build_definitions() must be called before this macro.
|
||||
macro(draco_set_cxx_flags)
|
||||
unset(cxx_flag_lists)
|
||||
|
||||
if(CMAKE_CXX_COMPILER_ID MATCHES "Clang|GNU")
|
||||
list(APPEND cxx_flag_lists draco_base_cxx_flags)
|
||||
endif()
|
||||
|
||||
# Append clang flags after the base set to allow -Wno* overrides to take
|
||||
# effect. Some of the base flags may enable a large set of warnings, e.g.,
|
||||
# -Wall.
|
||||
if(CMAKE_CXX_COMPILER_ID MATCHES "Clang")
|
||||
list(APPEND cxx_flag_lists draco_clang_cxx_flags)
|
||||
endif()
|
||||
|
||||
if(MSVC)
|
||||
list(APPEND cxx_flag_lists draco_msvc_cxx_flags)
|
||||
endif()
|
||||
|
||||
draco_set_and_stringify(DEST cxx_flags SOURCE_VARS ${cxx_flag_lists})
|
||||
if(DRACO_VERBOSE)
|
||||
message("draco_set_cxx_flags: internal CXX flags: ${cxx_flags}")
|
||||
endif()
|
||||
|
||||
if(DRACO_CXX_FLAGS)
|
||||
list(APPEND cxx_flag_lists DRACO_CXX_FLAGS)
|
||||
if(DRACO_VERBOSE)
|
||||
message("draco_set_cxx_flags: user CXX flags: ${DRACO_CXX_FLAGS}")
|
||||
endif()
|
||||
endif()
|
||||
|
||||
draco_set_and_stringify(DEST cxx_flags SOURCE_VARS ${cxx_flag_lists})
|
||||
|
||||
if(cxx_flags)
|
||||
draco_test_cxx_flag(FLAG_LIST_VAR_NAMES ${cxx_flag_lists})
|
||||
endif()
|
||||
endmacro()
|
||||
|
|
@ -0,0 +1,110 @@
|
|||
if(DRACO_CMAKE_DRACO_HELPERS_CMAKE_)
|
||||
return()
|
||||
endif() # DRACO_CMAKE_DRACO_HELPERS_CMAKE_
|
||||
set(DRACO_CMAKE_DRACO_HELPERS_CMAKE_ 1)
|
||||
|
||||
# Kills build generation using message(FATAL_ERROR) and outputs all data passed
|
||||
# to the console via use of $ARGN.
|
||||
macro(draco_die)
|
||||
message(FATAL_ERROR ${ARGN})
|
||||
endmacro()
|
||||
|
||||
# Converts semi-colon delimited list variable(s) to string. Output is written to
|
||||
# variable supplied via the DEST parameter. Input is from an expanded variable
|
||||
# referenced by SOURCE and/or variable(s) referenced by SOURCE_VARS.
|
||||
macro(draco_set_and_stringify)
|
||||
set(optional_args)
|
||||
set(single_value_args DEST SOURCE_VAR)
|
||||
set(multi_value_args SOURCE SOURCE_VARS)
|
||||
cmake_parse_arguments(sas "${optional_args}" "${single_value_args}"
|
||||
"${multi_value_args}" ${ARGN})
|
||||
|
||||
if(NOT sas_DEST OR NOT (sas_SOURCE OR sas_SOURCE_VARS))
|
||||
draco_die("draco_set_and_stringify: DEST and at least one of SOURCE "
|
||||
"SOURCE_VARS required.")
|
||||
endif()
|
||||
|
||||
unset(${sas_DEST})
|
||||
|
||||
if(sas_SOURCE)
|
||||
# $sas_SOURCE is one or more expanded variables, just copy the values to
|
||||
# $sas_DEST.
|
||||
set(${sas_DEST} "${sas_SOURCE}")
|
||||
endif()
|
||||
|
||||
if(sas_SOURCE_VARS)
|
||||
# $sas_SOURCE_VARS is one or more variable names. Each iteration expands a
|
||||
# variable and appends it to $sas_DEST.
|
||||
foreach(source_var ${sas_SOURCE_VARS})
|
||||
set(${sas_DEST} "${${sas_DEST}} ${${source_var}}")
|
||||
endforeach()
|
||||
|
||||
# Because $sas_DEST can be empty when entering this scope leading whitespace
|
||||
# can be introduced to $sas_DEST on the first iteration of the above loop.
|
||||
# Remove it:
|
||||
string(STRIP "${${sas_DEST}}" ${sas_DEST})
|
||||
endif()
|
||||
|
||||
# Lists in CMake are simply semicolon delimited strings, so stringification is
|
||||
# just a find and replace of the semicolon.
|
||||
string(REPLACE ";" " " ${sas_DEST} "${${sas_DEST}}")
|
||||
|
||||
if(DRACO_VERBOSE GREATER 1)
|
||||
message("draco_set_and_stringify: ${sas_DEST}=${${sas_DEST}}")
|
||||
endif()
|
||||
endmacro()
|
||||
|
||||
# Creates a dummy source file in $DRACO_GENERATED_SOURCES_DIRECTORY and adds it
|
||||
# to the specified target. Optionally adds its path to a list variable.
|
||||
#
|
||||
# draco_create_dummy_source_file(<TARGET <target> BASENAME <basename of file>>
|
||||
# [LISTVAR <list variable>])
|
||||
macro(draco_create_dummy_source_file)
|
||||
set(optional_args)
|
||||
set(single_value_args TARGET BASENAME LISTVAR)
|
||||
set(multi_value_args)
|
||||
cmake_parse_arguments(cdsf "${optional_args}" "${single_value_args}"
|
||||
"${multi_value_args}" ${ARGN})
|
||||
|
||||
if(NOT cdsf_TARGET OR NOT cdsf_BASENAME)
|
||||
draco_die("draco_create_dummy_source_file: TARGET and BASENAME required.")
|
||||
endif()
|
||||
|
||||
if(NOT DRACO_GENERATED_SOURCES_DIRECTORY)
|
||||
set(DRACO_GENERATED_SOURCES_DIRECTORY "${draco_build}/gen_src")
|
||||
endif()
|
||||
|
||||
set(dummy_source_dir "${DRACO_GENERATED_SOURCES_DIRECTORY}")
|
||||
set(dummy_source_file
|
||||
"${dummy_source_dir}/draco_${cdsf_TARGET}_${cdsf_BASENAME}.cc")
|
||||
set(dummy_source_code
|
||||
"// Generated file. DO NOT EDIT!\n"
|
||||
"// C++ source file created for target ${cdsf_TARGET}.\n"
|
||||
"void draco_${cdsf_TARGET}_${cdsf_BASENAME}_dummy_function(void)\;\n"
|
||||
"void draco_${cdsf_TARGET}_${cdsf_BASENAME}_dummy_function(void) {}\n")
|
||||
file(WRITE "${dummy_source_file}" ${dummy_source_code})
|
||||
|
||||
target_sources(${cdsf_TARGET} PRIVATE ${dummy_source_file})
|
||||
|
||||
if(cdsf_LISTVAR)
|
||||
list(APPEND ${cdsf_LISTVAR} "${dummy_source_file}")
|
||||
endif()
|
||||
endmacro()
|
||||
|
||||
# Loads the version string from $draco_source/draco/version.h and sets
|
||||
# $DRACO_VERSION.
|
||||
macro(draco_load_version_info)
|
||||
file(STRINGS "${draco_src_root}/core/draco_version.h" version_file_strings)
|
||||
foreach(str ${version_file_strings})
|
||||
if(str MATCHES "char kDracoVersion")
|
||||
string(FIND "${str}" "\"" open_quote_pos)
|
||||
string(FIND "${str}" ";" semicolon_pos)
|
||||
math(EXPR open_quote_pos "${open_quote_pos} + 1")
|
||||
math(EXPR close_quote_pos "${semicolon_pos} - 1")
|
||||
math(EXPR version_string_length "${close_quote_pos} - ${open_quote_pos}")
|
||||
string(SUBSTRING "${str}" ${open_quote_pos} ${version_string_length}
|
||||
DRACO_VERSION)
|
||||
break()
|
||||
endif()
|
||||
endforeach()
|
||||
endmacro()
|
||||
|
|
@ -0,0 +1,79 @@
|
|||
if(DRACO_CMAKE_DRACO_INSTALL_CMAKE_)
|
||||
return()
|
||||
endif() # DRACO_CMAKE_DRACO_INSTALL_CMAKE_
|
||||
set(DRACO_CMAKE_DRACO_INSTALL_CMAKE_ 1)
|
||||
|
||||
# Sets up the draco install targets. Must be called after the static library
|
||||
# target is created.
|
||||
macro(draco_setup_install_target)
|
||||
include(GNUInstallDirs)
|
||||
|
||||
# pkg-config: draco.pc
|
||||
set(prefix "${CMAKE_INSTALL_PREFIX}")
|
||||
set(exec_prefix "\${prefix}")
|
||||
set(libdir "\${prefix}/${CMAKE_INSTALL_LIBDIR}")
|
||||
set(includedir "\${prefix}/${CMAKE_INSTALL_INCLUDEDIR}")
|
||||
set(draco_lib_name "draco")
|
||||
|
||||
configure_file("${draco_root}/cmake/draco.pc.template"
|
||||
"${draco_build}/draco.pc" @ONLY NEWLINE_STYLE UNIX)
|
||||
install(FILES "${draco_build}/draco.pc"
|
||||
DESTINATION "${prefix}/${CMAKE_INSTALL_LIBDIR}/pkgconfig")
|
||||
|
||||
# CMake config: draco-config.cmake
|
||||
set(DRACO_INCLUDE_DIRS "${prefix}/${CMAKE_INSTALL_INCLUDEDIR}")
|
||||
configure_file("${draco_root}/cmake/draco-config.cmake.template"
|
||||
"${draco_build}/draco-config.cmake" @ONLY NEWLINE_STYLE UNIX)
|
||||
install(
|
||||
FILES "${draco_build}/draco-config.cmake"
|
||||
DESTINATION "${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_DATAROOTDIR}/cmake")
|
||||
|
||||
foreach(file ${draco_sources})
|
||||
if(file MATCHES "h$")
|
||||
list(APPEND draco_api_includes ${file})
|
||||
endif()
|
||||
endforeach()
|
||||
|
||||
# Strip $draco_src_root from the file paths: we need to install relative to
|
||||
# $include_directory.
|
||||
list(TRANSFORM draco_api_includes REPLACE "${draco_src_root}/" "")
|
||||
set(include_directory "${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_INCLUDEDIR}")
|
||||
|
||||
foreach(draco_api_include ${draco_api_includes})
|
||||
get_filename_component(file_directory ${draco_api_include} DIRECTORY)
|
||||
set(target_directory "${include_directory}/draco/${file_directory}")
|
||||
install(FILES ${draco_src_root}/${draco_api_include}
|
||||
DESTINATION "${target_directory}")
|
||||
endforeach()
|
||||
|
||||
install(
|
||||
FILES "${draco_build}/draco/draco_features.h"
|
||||
DESTINATION "${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_INCLUDEDIR}/draco/")
|
||||
|
||||
install(TARGETS draco_decoder DESTINATION
|
||||
"${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_BINDIR}")
|
||||
install(TARGETS draco_encoder DESTINATION
|
||||
"${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_BINDIR}")
|
||||
|
||||
if(WIN32)
|
||||
install(TARGETS draco DESTINATION
|
||||
"${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_LIBDIR}")
|
||||
else()
|
||||
install(TARGETS draco_static DESTINATION
|
||||
"${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_LIBDIR}")
|
||||
if(BUILD_SHARED_LIBS)
|
||||
install(TARGETS draco_shared DESTINATION
|
||||
"${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_LIBDIR}")
|
||||
endif()
|
||||
endif()
|
||||
|
||||
if(DRACO_UNITY_PLUGIN)
|
||||
install(TARGETS dracodec_unity DESTINATION
|
||||
"${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_LIBDIR}")
|
||||
endif()
|
||||
if(DRACO_MAYA_PLUGIN)
|
||||
install(TARGETS draco_maya_wrapper DESTINATION
|
||||
"${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_LIBDIR}")
|
||||
endif()
|
||||
|
||||
endmacro()
|
||||
|
|
@ -0,0 +1,96 @@
|
|||
if(DRACO_CMAKE_DRACO_INTRINSICS_CMAKE_)
|
||||
return()
|
||||
endif() # DRACO_CMAKE_DRACO_INTRINSICS_CMAKE_
|
||||
set(DRACO_CMAKE_DRACO_INTRINSICS_CMAKE_ 1)
|
||||
|
||||
# Returns the compiler flag for the SIMD intrinsics suffix specified by the
|
||||
# SUFFIX argument via the variable specified by the VARIABLE argument:
|
||||
# draco_get_intrinsics_flag_for_suffix(SUFFIX <suffix> VARIABLE <var name>)
|
||||
macro(draco_get_intrinsics_flag_for_suffix)
|
||||
unset(intrinsics_SUFFIX)
|
||||
unset(intrinsics_VARIABLE)
|
||||
unset(optional_args)
|
||||
unset(multi_value_args)
|
||||
set(single_value_args SUFFIX VARIABLE)
|
||||
cmake_parse_arguments(intrinsics "${optional_args}" "${single_value_args}"
|
||||
"${multi_value_args}" ${ARGN})
|
||||
|
||||
if(NOT (intrinsics_SUFFIX AND intrinsics_VARIABLE))
|
||||
message(FATAL_ERROR "draco_get_intrinsics_flag_for_suffix: SUFFIX and "
|
||||
"VARIABLE required.")
|
||||
endif()
|
||||
|
||||
if(intrinsics_SUFFIX MATCHES "neon")
|
||||
if(NOT MSVC)
|
||||
set(${intrinsics_VARIABLE} "${DRACO_NEON_INTRINSICS_FLAG}")
|
||||
endif()
|
||||
elseif(intrinsics_SUFFIX MATCHES "sse4")
|
||||
if(NOT MSVC)
|
||||
set(${intrinsics_VARIABLE} "-msse4.1")
|
||||
endif()
|
||||
else()
|
||||
message(FATAL_ERROR "draco_get_intrinsics_flag_for_suffix: Unknown "
|
||||
"instrinics suffix: ${intrinsics_SUFFIX}")
|
||||
endif()
|
||||
|
||||
if(DRACO_VERBOSE GREATER 1)
|
||||
message("draco_get_intrinsics_flag_for_suffix: "
|
||||
"suffix:${intrinsics_SUFFIX} flag:${${intrinsics_VARIABLE}}")
|
||||
endif()
|
||||
endmacro()
|
||||
|
||||
# Processes source files specified by SOURCES and adds intrinsics flags as
|
||||
# necessary: draco_process_intrinsics_sources(SOURCES <sources>)
|
||||
#
|
||||
# Detects requirement for intrinsics flags using source file name suffix.
|
||||
# Currently supports only SSE4.1.
|
||||
macro(draco_process_intrinsics_sources)
|
||||
unset(arg_TARGET)
|
||||
unset(arg_SOURCES)
|
||||
unset(optional_args)
|
||||
set(single_value_args TARGET)
|
||||
set(multi_value_args SOURCES)
|
||||
cmake_parse_arguments(arg "${optional_args}" "${single_value_args}"
|
||||
"${multi_value_args}" ${ARGN})
|
||||
if(NOT (arg_TARGET AND arg_SOURCES))
|
||||
message(FATAL_ERROR "draco_process_intrinsics_sources: TARGET and "
|
||||
"SOURCES required.")
|
||||
endif()
|
||||
|
||||
if(DRACO_ENABLE_SSE4_1 AND draco_have_sse4)
|
||||
unset(sse4_sources)
|
||||
list(APPEND sse4_sources ${arg_SOURCES})
|
||||
|
||||
list(FILTER sse4_sources INCLUDE REGEX
|
||||
"${draco_sse4_source_file_suffix}$")
|
||||
|
||||
if(sse4_sources)
|
||||
unset(sse4_flags)
|
||||
draco_get_intrinsics_flag_for_suffix(SUFFIX
|
||||
${draco_sse4_source_file_suffix}
|
||||
VARIABLE sse4_flags)
|
||||
if(sse4_flags)
|
||||
draco_set_compiler_flags_for_sources(SOURCES ${sse4_sources} FLAGS
|
||||
${sse4_flags})
|
||||
endif()
|
||||
endif()
|
||||
endif()
|
||||
|
||||
if(DRACO_ENABLE_NEON AND draco_have_neon)
|
||||
unset(neon_sources)
|
||||
list(APPEND neon_sources ${arg_SOURCES})
|
||||
list(FILTER neon_sources INCLUDE REGEX
|
||||
"${draco_neon_source_file_suffix}$")
|
||||
|
||||
if(neon_sources AND DRACO_NEON_INTRINSICS_FLAG)
|
||||
unset(neon_flags)
|
||||
draco_get_intrinsics_flag_for_suffix(SUFFIX
|
||||
${draco_neon_source_file_suffix}
|
||||
VARIABLE neon_flags)
|
||||
if(neon_flags)
|
||||
draco_set_compiler_flags_for_sources(SOURCES ${neon_sources} FLAGS
|
||||
${neon_flags})
|
||||
endif()
|
||||
endif()
|
||||
endif()
|
||||
endmacro()
|
||||
|
|
@ -0,0 +1,239 @@
|
|||
if(DRACO_CMAKE_DRACO_OPTIONS_CMAKE_)
|
||||
return()
|
||||
endif() # DRACO_CMAKE_DRACO_OPTIONS_CMAKE_
|
||||
set(DRACO_CMAKE_DRACO_OPTIONS_CMAKE_)
|
||||
|
||||
set(draco_features_file_name "${draco_build}/draco/draco_features.h")
|
||||
set(draco_features_list)
|
||||
|
||||
# Simple wrapper for CMake's builtin option command that tracks draco's build
|
||||
# options in the list variable $draco_options.
|
||||
macro(draco_option)
|
||||
unset(option_NAME)
|
||||
unset(option_HELPSTRING)
|
||||
unset(option_VALUE)
|
||||
unset(optional_args)
|
||||
unset(multi_value_args)
|
||||
set(single_value_args NAME HELPSTRING VALUE)
|
||||
cmake_parse_arguments(option "${optional_args}" "${single_value_args}"
|
||||
"${multi_value_args}" ${ARGN})
|
||||
|
||||
if(NOT (option_NAME AND option_HELPSTRING AND DEFINED option_VALUE))
|
||||
message(FATAL_ERROR "draco_option: NAME HELPSTRING and VALUE required.")
|
||||
endif()
|
||||
|
||||
option(${option_NAME} ${option_HELPSTRING} ${option_VALUE})
|
||||
|
||||
if(DRACO_VERBOSE GREATER 2)
|
||||
message("--------- draco_option ---------\n" "option_NAME=${option_NAME}\n"
|
||||
"option_HELPSTRING=${option_HELPSTRING}\n"
|
||||
"option_VALUE=${option_VALUE}\n"
|
||||
"------------------------------------------\n")
|
||||
endif()
|
||||
|
||||
list(APPEND draco_options ${option_NAME})
|
||||
list(REMOVE_DUPLICATES draco_options)
|
||||
endmacro()
|
||||
|
||||
# Dumps the $draco_options list via CMake message command.
|
||||
macro(draco_dump_options)
|
||||
foreach(option_name ${draco_options})
|
||||
message("${option_name}: ${${option_name}}")
|
||||
endforeach()
|
||||
endmacro()
|
||||
|
||||
# Set default options.
|
||||
macro(draco_set_default_options)
|
||||
draco_option(NAME DRACO_FAST HELPSTRING "Try to build faster libs." VALUE OFF)
|
||||
draco_option(NAME DRACO_JS_GLUE HELPSTRING
|
||||
"Enable JS Glue and JS targets when using Emscripten." VALUE ON)
|
||||
draco_option(NAME DRACO_IE_COMPATIBLE HELPSTRING
|
||||
"Enable support for older IE builds when using Emscripten." VALUE
|
||||
OFF)
|
||||
draco_option(NAME DRACO_MESH_COMPRESSION HELPSTRING "Enable mesh compression."
|
||||
VALUE ON)
|
||||
draco_option(NAME DRACO_POINT_CLOUD_COMPRESSION HELPSTRING
|
||||
"Enable point cloud compression." VALUE ON)
|
||||
draco_option(NAME DRACO_PREDICTIVE_EDGEBREAKER HELPSTRING
|
||||
"Enable predictive edgebreaker." VALUE ON)
|
||||
draco_option(NAME DRACO_STANDARD_EDGEBREAKER HELPSTRING
|
||||
"Enable stand edgebreaker." VALUE ON)
|
||||
draco_option(NAME DRACO_BACKWARDS_COMPATIBILITY HELPSTRING
|
||||
"Enable backwards compatibility." VALUE ON)
|
||||
draco_option(NAME DRACO_DECODER_ATTRIBUTE_DEDUPLICATION HELPSTRING
|
||||
"Enable attribute deduping." VALUE OFF)
|
||||
draco_option(NAME DRACO_TESTS HELPSTRING "Enables tests." VALUE OFF)
|
||||
draco_option(NAME DRACO_WASM HELPSTRING "Enables WASM support." VALUE OFF)
|
||||
draco_option(NAME DRACO_UNITY_PLUGIN HELPSTRING
|
||||
"Build plugin library for Unity." VALUE OFF)
|
||||
draco_option(NAME DRACO_ANIMATION_ENCODING HELPSTRING "Enable animation."
|
||||
VALUE OFF)
|
||||
draco_option(NAME DRACO_GLTF HELPSTRING "Support GLTF." VALUE OFF)
|
||||
draco_option(NAME DRACO_MAYA_PLUGIN HELPSTRING
|
||||
"Build plugin library for Maya." VALUE OFF)
|
||||
draco_check_deprecated_options()
|
||||
endmacro()
|
||||
|
||||
# Warns when a deprecated option is used and sets the option that replaced it.
|
||||
macro(draco_handle_deprecated_option)
|
||||
unset(option_OLDNAME)
|
||||
unset(option_NEWNAME)
|
||||
unset(optional_args)
|
||||
unset(multi_value_args)
|
||||
set(single_value_args OLDNAME NEWNAME)
|
||||
cmake_parse_arguments(option "${optional_args}" "${single_value_args}"
|
||||
"${multi_value_args}" ${ARGN})
|
||||
|
||||
if("${${option_OLDNAME}}")
|
||||
message(WARNING "${option_OLDNAME} is deprecated. Use ${option_NEWNAME}.")
|
||||
set(${option_NEWNAME} ${${option_OLDNAME}})
|
||||
endif()
|
||||
endmacro()
|
||||
|
||||
# Checks for use of deprecated options.
|
||||
macro(draco_check_deprecated_options)
|
||||
draco_handle_deprecated_option(OLDNAME ENABLE_EXTRA_SPEED NEWNAME DRACO_FAST)
|
||||
draco_handle_deprecated_option(OLDNAME ENABLE_JS_GLUE NEWNAME DRACO_JS_GLUE)
|
||||
draco_handle_deprecated_option(OLDNAME ENABLE_MESH_COMPRESSION NEWNAME
|
||||
DRACO_MESH_COMPRESSION)
|
||||
draco_handle_deprecated_option(OLDNAME ENABLE_POINT_CLOUD_COMPRESSION NEWNAME
|
||||
DRACO_POINT_CLOUD_COMPRESSION)
|
||||
draco_handle_deprecated_option(OLDNAME ENABLE_PREDICTIVE_EDGEBREAKER NEWNAME
|
||||
DRACO_PREDICTIVE_EDGEBREAKER)
|
||||
draco_handle_deprecated_option(OLDNAME ENABLE_STANDARD_EDGEBREAKER NEWNAME
|
||||
DRACO_STANDARD_EDGEBREAKER)
|
||||
draco_handle_deprecated_option(OLDNAME ENABLE_BACKWARDS_COMPATIBILITY NEWNAME
|
||||
DRACO_BACKWARDS_COMPATIBILITY)
|
||||
draco_handle_deprecated_option(OLDNAME ENABLE_DECODER_ATTRIBUTE_DEDUPLICATION
|
||||
NEWNAME DRACO_DECODER_ATTRIBUTE_DEDUPLICATION)
|
||||
draco_handle_deprecated_option(OLDNAME ENABLE_TESTS NEWNAME DRACO_TESTS)
|
||||
draco_handle_deprecated_option(OLDNAME ENABLE_WASM NEWNAME DRACO_WASM)
|
||||
draco_handle_deprecated_option(OLDNAME BUILD_UNITY_PLUGIN NEWNAME
|
||||
DRACO_UNITY_PLUGIN)
|
||||
draco_handle_deprecated_option(OLDNAME BUILD_ANIMATION_ENCODING NEWNAME
|
||||
DRACO_ANIMATION_ENCODING)
|
||||
draco_handle_deprecated_option(OLDNAME BUILD_FOR_GLTF NEWNAME DRACO_GLTF)
|
||||
draco_handle_deprecated_option(OLDNAME BUILD_MAYA_PLUGIN NEWNAME
|
||||
DRACO_MAYA_PLUGIN)
|
||||
draco_handle_deprecated_option(OLDNAME BUILD_USD_PLUGIN NEWNAME
|
||||
BUILD_SHARED_LIBS)
|
||||
|
||||
endmacro()
|
||||
|
||||
# Macro for setting Draco features based on user configuration. Features enabled
|
||||
# by this macro are Draco global.
|
||||
macro(draco_set_optional_features)
|
||||
if(DRACO_GLTF)
|
||||
# Override settings when building for GLTF.
|
||||
draco_enable_feature(FEATURE "DRACO_MESH_COMPRESSION_SUPPORTED")
|
||||
draco_enable_feature(FEATURE "DRACO_NORMAL_ENCODING_SUPPORTED")
|
||||
draco_enable_feature(FEATURE "DRACO_STANDARD_EDGEBREAKER_SUPPORTED")
|
||||
else()
|
||||
if(DRACO_POINT_CLOUD_COMPRESSION)
|
||||
draco_enable_feature(FEATURE "DRACO_POINT_CLOUD_COMPRESSION_SUPPORTED")
|
||||
endif()
|
||||
if(DRACO_MESH_COMPRESSION)
|
||||
draco_enable_feature(FEATURE "DRACO_MESH_COMPRESSION_SUPPORTED")
|
||||
draco_enable_feature(FEATURE "DRACO_NORMAL_ENCODING_SUPPORTED")
|
||||
|
||||
if(DRACO_STANDARD_EDGEBREAKER)
|
||||
draco_enable_feature(FEATURE "DRACO_STANDARD_EDGEBREAKER_SUPPORTED")
|
||||
endif()
|
||||
if(DRACO_PREDICTIVE_EDGEBREAKER)
|
||||
draco_enable_feature(FEATURE "DRACO_PREDICTIVE_EDGEBREAKER_SUPPORTED")
|
||||
endif()
|
||||
endif()
|
||||
|
||||
if(DRACO_BACKWARDS_COMPATIBILITY)
|
||||
draco_enable_feature(FEATURE "DRACO_BACKWARDS_COMPATIBILITY_SUPPORTED")
|
||||
endif()
|
||||
|
||||
|
||||
if(NOT EMSCRIPTEN)
|
||||
# For now, enable deduplication for both encoder and decoder.
|
||||
# TODO(ostava): Support for disabling attribute deduplication for the C++
|
||||
# decoder is planned in future releases.
|
||||
draco_enable_feature(FEATURE
|
||||
DRACO_ATTRIBUTE_INDICES_DEDUPLICATION_SUPPORTED)
|
||||
draco_enable_feature(FEATURE
|
||||
DRACO_ATTRIBUTE_VALUES_DEDUPLICATION_SUPPORTED)
|
||||
endif()
|
||||
endif()
|
||||
|
||||
if(DRACO_UNITY_PLUGIN)
|
||||
draco_enable_feature(FEATURE "DRACO_UNITY_PLUGIN")
|
||||
set(CMAKE_POSITION_INDEPENDENT_CODE ON)
|
||||
endif()
|
||||
|
||||
if(DRACO_MAYA_PLUGIN)
|
||||
draco_enable_feature(FEATURE "DRACO_MAYA_PLUGIN")
|
||||
set(CMAKE_POSITION_INDEPENDENT_CODE ON)
|
||||
endif()
|
||||
|
||||
endmacro()
|
||||
|
||||
# Macro that handles tracking of Draco preprocessor symbols for the purpose of
|
||||
# producing draco_features.h.
|
||||
#
|
||||
# ~~~
|
||||
# draco_enable_feature(FEATURE <feature_name> [TARGETS <target_name>])
|
||||
# ~~~
|
||||
#
|
||||
# FEATURE is required. It should be a Draco preprocessor symbol. TARGETS is
|
||||
# optional. It can be one or more draco targets.
|
||||
#
|
||||
# When the TARGETS argument is not present the preproc symbol is added to
|
||||
# draco_features.h. When it is draco_features.h is unchanged, and
|
||||
# target_compile_options() is called for each target specified.
|
||||
macro(draco_enable_feature)
|
||||
set(def_flags)
|
||||
set(def_single_arg_opts FEATURE)
|
||||
set(def_multi_arg_opts TARGETS)
|
||||
cmake_parse_arguments(DEF "${def_flags}" "${def_single_arg_opts}"
|
||||
"${def_multi_arg_opts}" ${ARGN})
|
||||
if("${DEF_FEATURE}" STREQUAL "")
|
||||
message(FATAL_ERROR "Empty FEATURE passed to draco_enable_feature().")
|
||||
endif()
|
||||
|
||||
# Do nothing/return early if $DEF_FEATURE is already in the list.
|
||||
list(FIND draco_features_list ${DEF_FEATURE} df_index)
|
||||
if(NOT df_index EQUAL -1)
|
||||
return()
|
||||
endif()
|
||||
|
||||
list(LENGTH DEF_TARGETS df_targets_list_length)
|
||||
if(${df_targets_list_length} EQUAL 0)
|
||||
list(APPEND draco_features_list ${DEF_FEATURE})
|
||||
else()
|
||||
foreach(target ${DEF_TARGETS})
|
||||
target_compile_definitions(${target} PRIVATE ${DEF_FEATURE})
|
||||
endforeach()
|
||||
endif()
|
||||
endmacro()
|
||||
|
||||
# Function for generating draco_features.h.
|
||||
function(draco_generate_features_h)
|
||||
file(WRITE "${draco_features_file_name}.new"
|
||||
"// GENERATED FILE -- DO NOT EDIT\n\n" "#ifndef DRACO_FEATURES_H_\n"
|
||||
"#define DRACO_FEATURES_H_\n\n")
|
||||
|
||||
foreach(feature ${draco_features_list})
|
||||
file(APPEND "${draco_features_file_name}.new" "#define ${feature}\n")
|
||||
endforeach()
|
||||
|
||||
file(APPEND "${draco_features_file_name}.new"
|
||||
"\n#endif // DRACO_FEATURES_H_")
|
||||
|
||||
# Will replace ${draco_features_file_name} only if the file content has
|
||||
# changed. This prevents forced Draco rebuilds after CMake runs.
|
||||
configure_file("${draco_features_file_name}.new"
|
||||
"${draco_features_file_name}")
|
||||
file(REMOVE "${draco_features_file_name}.new")
|
||||
endfunction()
|
||||
|
||||
# Sets default options for the build and processes user controlled options to
|
||||
# compute enabled features.
|
||||
macro(draco_setup_options)
|
||||
draco_set_default_options()
|
||||
draco_set_optional_features()
|
||||
endmacro()
|
||||
|
|
@ -0,0 +1,32 @@
|
|||
if(DRACO_CMAKE_DRACO_SANITIZER_CMAKE_)
|
||||
return()
|
||||
endif() # DRACO_CMAKE_DRACO_SANITIZER_CMAKE_
|
||||
set(DRACO_CMAKE_DRACO_SANITIZER_CMAKE_ 1)
|
||||
|
||||
# Handles the details of enabling sanitizers.
|
||||
macro(draco_configure_sanitizer)
|
||||
if(DRACO_SANITIZE AND NOT MSVC)
|
||||
if(CMAKE_CXX_COMPILER_ID MATCHES "Clang")
|
||||
if(DRACO_SANITIZE MATCHES "cfi")
|
||||
list(APPEND DRACO_CXX_FLAGS "-flto" "-fno-sanitize-trap=cfi")
|
||||
list(APPEND DRACO_EXE_LINKER_FLAGS "-flto" "-fno-sanitize-trap=cfi"
|
||||
"-fuse-ld=gold")
|
||||
endif()
|
||||
|
||||
if(${CMAKE_SIZEOF_VOID_P} EQUAL 4
|
||||
AND DRACO_SANITIZE MATCHES "integer|undefined")
|
||||
list(APPEND DRACO_EXE_LINKER_FLAGS "--rtlib=compiler-rt" "-lgcc_s")
|
||||
endif()
|
||||
endif()
|
||||
|
||||
list(APPEND DRACO_CXX_FLAGS "-fsanitize=${DRACO_SANITIZE}")
|
||||
list(APPEND DRACO_EXE_LINKER_FLAGS "-fsanitize=${DRACO_SANITIZE}")
|
||||
|
||||
# Make sanitizer callstacks accurate.
|
||||
list(APPEND DRACO_CXX_FLAGS "-fno-omit-frame-pointer"
|
||||
"-fno-optimize-sibling-calls")
|
||||
|
||||
draco_test_cxx_flag(FLAG_LIST_VAR_NAMES DRACO_CXX_FLAGS FLAG_REQUIRED)
|
||||
draco_test_exe_linker_flag(FLAG_LIST_VAR_NAME DRACO_EXE_LINKER_FLAGS)
|
||||
endif()
|
||||
endmacro()
|
||||
|
|
@ -0,0 +1,349 @@
|
|||
if(DRACO_CMAKE_DRACO_TARGETS_CMAKE_)
|
||||
return()
|
||||
endif() # DRACO_CMAKE_DRACO_TARGETS_CMAKE_
|
||||
set(DRACO_CMAKE_DRACO_TARGETS_CMAKE_ 1)
|
||||
|
||||
# Resets list variables used to track draco targets.
|
||||
macro(draco_reset_target_lists)
|
||||
unset(draco_targets)
|
||||
unset(draco_exe_targets)
|
||||
unset(draco_lib_targets)
|
||||
unset(draco_objlib_targets)
|
||||
unset(draco_module_targets)
|
||||
unset(draco_sources)
|
||||
unset(draco_test_targets)
|
||||
endmacro()
|
||||
|
||||
# Creates an executable target. The target name is passed as a parameter to the
|
||||
# NAME argument, and the sources passed as a parameter to the SOURCES argument:
|
||||
# draco_add_executable(NAME <name> SOURCES <sources> [optional args])
|
||||
#
|
||||
# Optional args:
|
||||
# cmake-format: off
|
||||
# - OUTPUT_NAME: Override output file basename. Target basename defaults to
|
||||
# NAME.
|
||||
# - TEST: Flag. Presence means treat executable as a test.
|
||||
# - DEFINES: List of preprocessor macro definitions.
|
||||
# - INCLUDES: list of include directories for the target.
|
||||
# - COMPILE_FLAGS: list of compiler flags for the target.
|
||||
# - LINK_FLAGS: List of linker flags for the target.
|
||||
# - OBJLIB_DEPS: List of CMake object library target dependencies.
|
||||
# - LIB_DEPS: List of CMake library dependencies.
|
||||
# cmake-format: on
|
||||
#
|
||||
# Sources passed to this macro are added to $draco_test_sources when TEST is
|
||||
# specified. Otherwise sources are added to $draco_sources.
|
||||
#
|
||||
# Targets passed to this macro are always added to the $draco_targets list. When
|
||||
# TEST is specified targets are also added to the $draco_test_targets list.
|
||||
# Otherwise targets are added to $draco_exe_targets.
|
||||
macro(draco_add_executable)
|
||||
unset(exe_TEST)
|
||||
unset(exe_TEST_DEFINES_MAIN)
|
||||
unset(exe_NAME)
|
||||
unset(exe_OUTPUT_NAME)
|
||||
unset(exe_SOURCES)
|
||||
unset(exe_DEFINES)
|
||||
unset(exe_INCLUDES)
|
||||
unset(exe_COMPILE_FLAGS)
|
||||
unset(exe_LINK_FLAGS)
|
||||
unset(exe_OBJLIB_DEPS)
|
||||
unset(exe_LIB_DEPS)
|
||||
set(optional_args TEST)
|
||||
set(single_value_args NAME OUTPUT_NAME)
|
||||
set(multi_value_args SOURCES DEFINES INCLUDES COMPILE_FLAGS LINK_FLAGS
|
||||
OBJLIB_DEPS LIB_DEPS)
|
||||
|
||||
cmake_parse_arguments(exe "${optional_args}" "${single_value_args}"
|
||||
"${multi_value_args}" ${ARGN})
|
||||
|
||||
if(DRACO_VERBOSE GREATER 1)
|
||||
message("--------- draco_add_executable ---------\n"
|
||||
"exe_TEST=${exe_TEST}\n"
|
||||
"exe_TEST_DEFINES_MAIN=${exe_TEST_DEFINES_MAIN}\n"
|
||||
"exe_NAME=${exe_NAME}\n"
|
||||
"exe_OUTPUT_NAME=${exe_OUTPUT_NAME}\n"
|
||||
"exe_SOURCES=${exe_SOURCES}\n"
|
||||
"exe_DEFINES=${exe_DEFINES}\n"
|
||||
"exe_INCLUDES=${exe_INCLUDES}\n"
|
||||
"exe_COMPILE_FLAGS=${exe_COMPILE_FLAGS}\n"
|
||||
"exe_LINK_FLAGS=${exe_LINK_FLAGS}\n"
|
||||
"exe_OBJLIB_DEPS=${exe_OBJLIB_DEPS}\n"
|
||||
"exe_LIB_DEPS=${exe_LIB_DEPS}\n"
|
||||
"------------------------------------------\n")
|
||||
endif()
|
||||
|
||||
if(NOT (exe_NAME AND exe_SOURCES))
|
||||
message(FATAL_ERROR "draco_add_executable: NAME and SOURCES required.")
|
||||
endif()
|
||||
|
||||
list(APPEND draco_targets ${exe_NAME})
|
||||
if(exe_TEST)
|
||||
list(APPEND draco_test_targets ${exe_NAME})
|
||||
list(APPEND draco_test_sources ${exe_SOURCES})
|
||||
else()
|
||||
list(APPEND draco_exe_targets ${exe_NAME})
|
||||
list(APPEND draco_sources ${exe_SOURCES})
|
||||
endif()
|
||||
|
||||
add_executable(${exe_NAME} ${exe_SOURCES})
|
||||
|
||||
if(exe_OUTPUT_NAME)
|
||||
set_target_properties(${exe_NAME} PROPERTIES OUTPUT_NAME ${exe_OUTPUT_NAME})
|
||||
endif()
|
||||
|
||||
draco_process_intrinsics_sources(TARGET ${exe_NAME} SOURCES ${exe_SOURCES})
|
||||
|
||||
if(exe_DEFINES)
|
||||
target_compile_definitions(${exe_NAME} PRIVATE ${exe_DEFINES})
|
||||
endif()
|
||||
|
||||
if(exe_INCLUDES)
|
||||
target_include_directories(${exe_NAME} PRIVATE ${exe_INCLUDES})
|
||||
endif()
|
||||
|
||||
if(exe_COMPILE_FLAGS OR DRACO_CXX_FLAGS)
|
||||
target_compile_options(${exe_NAME}
|
||||
PRIVATE ${exe_COMPILE_FLAGS} ${DRACO_CXX_FLAGS})
|
||||
endif()
|
||||
|
||||
if(exe_LINK_FLAGS OR DRACO_EXE_LINKER_FLAGS)
|
||||
if(${CMAKE_VERSION} VERSION_LESS "3.13")
|
||||
set(link_flags ${exe_LINK_FLAGS} ${DRACO_EXE_LINKER_FLAGS})
|
||||
set_target_properties(${exe_NAME}
|
||||
PROPERTIES LINK_FLAGS ${exe_LINK_FLAGS}
|
||||
${DRACO_EXE_LINKER_FLAGS})
|
||||
else()
|
||||
target_link_options(${exe_NAME} PRIVATE ${exe_LINK_FLAGS}
|
||||
${DRACO_EXE_LINKER_FLAGS})
|
||||
endif()
|
||||
endif()
|
||||
|
||||
if(exe_OBJLIB_DEPS)
|
||||
foreach(objlib_dep ${exe_OBJLIB_DEPS})
|
||||
target_sources(${exe_NAME} PRIVATE $<TARGET_OBJECTS:${objlib_dep}>)
|
||||
endforeach()
|
||||
endif()
|
||||
|
||||
if(CMAKE_THREAD_LIBS_INIT)
|
||||
list(APPEND exe_LIB_DEPS ${CMAKE_THREAD_LIBS_INIT})
|
||||
endif()
|
||||
|
||||
if(BUILD_SHARED_LIBS AND (MSVC OR WIN32))
|
||||
target_compile_definitions(${lib_NAME} PRIVATE "DRACO_BUILDING_DLL=0")
|
||||
endif()
|
||||
|
||||
if(exe_LIB_DEPS)
|
||||
unset(exe_static)
|
||||
if("${CMAKE_EXE_LINKER_FLAGS} ${DRACO_EXE_LINKER_FLAGS}" MATCHES "static")
|
||||
set(exe_static ON)
|
||||
endif()
|
||||
|
||||
if(exe_static AND CMAKE_CXX_COMPILER_ID MATCHES "Clang|GNU")
|
||||
# Third party dependencies can introduce dependencies on system and test
|
||||
# libraries. Since the target created here is an executable, and CMake
|
||||
# does not provide a method of controlling order of link dependencies,
|
||||
# wrap all of the dependencies of this target in start/end group flags to
|
||||
# ensure that dependencies of third party targets can be resolved when
|
||||
# those dependencies happen to be resolved by dependencies of the current
|
||||
# target.
|
||||
list(INSERT exe_LIB_DEPS 0 -Wl,--start-group)
|
||||
list(APPEND exe_LIB_DEPS -Wl,--end-group)
|
||||
endif()
|
||||
target_link_libraries(${exe_NAME} PRIVATE ${exe_LIB_DEPS})
|
||||
endif()
|
||||
endmacro()
|
||||
|
||||
# Creates a library target of the specified type. The target name is passed as a
|
||||
# parameter to the NAME argument, the type as a parameter to the TYPE argument,
|
||||
# and the sources passed as a parameter to the SOURCES argument:
|
||||
# draco_add_library(NAME <name> TYPE <type> SOURCES <sources> [optional args])
|
||||
#
|
||||
# Optional args:
|
||||
# cmake-format: off
|
||||
# - OUTPUT_NAME: Override output file basename. Target basename defaults to
|
||||
# NAME. OUTPUT_NAME is ignored when BUILD_SHARED_LIBS is enabled and CMake
|
||||
# is generating a build for which MSVC or WIN32 are true. This is to avoid
|
||||
# output basename collisions with DLL import libraries.
|
||||
# - TEST: Flag. Presence means treat library as a test.
|
||||
# - DEFINES: List of preprocessor macro definitions.
|
||||
# - INCLUDES: list of include directories for the target.
|
||||
# - COMPILE_FLAGS: list of compiler flags for the target.
|
||||
# - LINK_FLAGS: List of linker flags for the target.
|
||||
# - OBJLIB_DEPS: List of CMake object library target dependencies.
|
||||
# - LIB_DEPS: List of CMake library dependencies.
|
||||
# - PUBLIC_INCLUDES: List of include paths to export to dependents.
|
||||
# cmake-format: on
|
||||
#
|
||||
# Sources passed to the macro are added to the lists tracking draco sources:
|
||||
# cmake-format: off
|
||||
# - When TEST is specified sources are added to $draco_test_sources.
|
||||
# - Otherwise sources are added to $draco_sources.
|
||||
# cmake-format: on
|
||||
#
|
||||
# Targets passed to this macro are added to the lists tracking draco targets:
|
||||
# cmake-format: off
|
||||
# - Targets are always added to $draco_targets.
|
||||
# - When the TEST flag is specified, targets are added to
|
||||
# $draco_test_targets.
|
||||
# - When TEST is not specified:
|
||||
# - Libraries of type SHARED are added to $draco_dylib_targets.
|
||||
# - Libraries of type OBJECT are added to $draco_objlib_targets.
|
||||
# - Libraries of type STATIC are added to $draco_lib_targets.
|
||||
# cmake-format: on
|
||||
macro(draco_add_library)
|
||||
unset(lib_TEST)
|
||||
unset(lib_NAME)
|
||||
unset(lib_OUTPUT_NAME)
|
||||
unset(lib_TYPE)
|
||||
unset(lib_SOURCES)
|
||||
unset(lib_DEFINES)
|
||||
unset(lib_INCLUDES)
|
||||
unset(lib_COMPILE_FLAGS)
|
||||
unset(lib_LINK_FLAGS)
|
||||
unset(lib_OBJLIB_DEPS)
|
||||
unset(lib_LIB_DEPS)
|
||||
unset(lib_PUBLIC_INCLUDES)
|
||||
unset(lib_TARGET_PROPERTIES)
|
||||
set(optional_args TEST)
|
||||
set(single_value_args NAME OUTPUT_NAME TYPE)
|
||||
set(multi_value_args SOURCES DEFINES INCLUDES COMPILE_FLAGS LINK_FLAGS
|
||||
OBJLIB_DEPS LIB_DEPS PUBLIC_INCLUDES TARGET_PROPERTIES)
|
||||
|
||||
cmake_parse_arguments(lib "${optional_args}" "${single_value_args}"
|
||||
"${multi_value_args}" ${ARGN})
|
||||
|
||||
if(DRACO_VERBOSE GREATER 1)
|
||||
message("--------- draco_add_library ---------\n"
|
||||
"lib_TEST=${lib_TEST}\n"
|
||||
"lib_NAME=${lib_NAME}\n"
|
||||
"lib_OUTPUT_NAME=${lib_OUTPUT_NAME}\n"
|
||||
"lib_TYPE=${lib_TYPE}\n"
|
||||
"lib_SOURCES=${lib_SOURCES}\n"
|
||||
"lib_DEFINES=${lib_DEFINES}\n"
|
||||
"lib_INCLUDES=${lib_INCLUDES}\n"
|
||||
"lib_COMPILE_FLAGS=${lib_COMPILE_FLAGS}\n"
|
||||
"lib_LINK_FLAGS=${lib_LINK_FLAGS}\n"
|
||||
"lib_OBJLIB_DEPS=${lib_OBJLIB_DEPS}\n"
|
||||
"lib_LIB_DEPS=${lib_LIB_DEPS}\n"
|
||||
"lib_PUBLIC_INCLUDES=${lib_PUBLIC_INCLUDES}\n"
|
||||
"---------------------------------------\n")
|
||||
endif()
|
||||
|
||||
if(NOT (lib_NAME AND lib_TYPE))
|
||||
message(FATAL_ERROR "draco_add_library: NAME and TYPE required.")
|
||||
endif()
|
||||
|
||||
list(APPEND draco_targets ${lib_NAME})
|
||||
if(lib_TEST)
|
||||
list(APPEND draco_test_targets ${lib_NAME})
|
||||
list(APPEND draco_test_sources ${lib_SOURCES})
|
||||
else()
|
||||
list(APPEND draco_sources ${lib_SOURCES})
|
||||
if(lib_TYPE STREQUAL MODULE)
|
||||
list(APPEND draco_module_targets ${lib_NAME})
|
||||
elseif(lib_TYPE STREQUAL OBJECT)
|
||||
list(APPEND draco_objlib_targets ${lib_NAME})
|
||||
elseif(lib_TYPE STREQUAL SHARED)
|
||||
list(APPEND draco_dylib_targets ${lib_NAME})
|
||||
elseif(lib_TYPE STREQUAL STATIC)
|
||||
list(APPEND draco_lib_targets ${lib_NAME})
|
||||
else()
|
||||
message(WARNING "draco_add_library: Unhandled type: ${lib_TYPE}")
|
||||
endif()
|
||||
endif()
|
||||
|
||||
add_library(${lib_NAME} ${lib_TYPE} ${lib_SOURCES})
|
||||
if(lib_SOURCES)
|
||||
draco_process_intrinsics_sources(TARGET ${lib_NAME} SOURCES ${lib_SOURCES})
|
||||
endif()
|
||||
|
||||
if(lib_OUTPUT_NAME)
|
||||
if(NOT (BUILD_SHARED_LIBS AND (MSVC OR WIN32)))
|
||||
set_target_properties(${lib_NAME}
|
||||
PROPERTIES OUTPUT_NAME ${lib_OUTPUT_NAME})
|
||||
endif()
|
||||
endif()
|
||||
|
||||
if(lib_DEFINES)
|
||||
target_compile_definitions(${lib_NAME} PRIVATE ${lib_DEFINES})
|
||||
endif()
|
||||
|
||||
if(lib_INCLUDES)
|
||||
target_include_directories(${lib_NAME} PRIVATE ${lib_INCLUDES})
|
||||
endif()
|
||||
|
||||
if(lib_PUBLIC_INCLUDES)
|
||||
target_include_directories(${lib_NAME} PUBLIC ${lib_PUBLIC_INCLUDES})
|
||||
endif()
|
||||
|
||||
if(lib_COMPILE_FLAGS OR DRACO_CXX_FLAGS)
|
||||
target_compile_options(${lib_NAME}
|
||||
PRIVATE ${lib_COMPILE_FLAGS} ${DRACO_CXX_FLAGS})
|
||||
endif()
|
||||
|
||||
if(lib_LINK_FLAGS)
|
||||
set_target_properties(${lib_NAME} PROPERTIES LINK_FLAGS ${lib_LINK_FLAGS})
|
||||
endif()
|
||||
|
||||
if(lib_OBJLIB_DEPS)
|
||||
foreach(objlib_dep ${lib_OBJLIB_DEPS})
|
||||
target_sources(${lib_NAME} PRIVATE $<TARGET_OBJECTS:${objlib_dep}>)
|
||||
endforeach()
|
||||
endif()
|
||||
|
||||
if(lib_LIB_DEPS)
|
||||
if(lib_TYPE STREQUAL STATIC)
|
||||
set(link_type PUBLIC)
|
||||
else()
|
||||
set(link_type PRIVATE)
|
||||
if(lib_TYPE STREQUAL SHARED AND CMAKE_CXX_COMPILER_ID MATCHES "Clang|GNU")
|
||||
# The draco shared object uses the static draco as input to turn it into
|
||||
# a shared object. Include everything from the static library in the
|
||||
# shared object.
|
||||
if(APPLE)
|
||||
list(INSERT lib_LIB_DEPS 0 -Wl,-force_load)
|
||||
else()
|
||||
list(INSERT lib_LIB_DEPS 0 -Wl,--whole-archive)
|
||||
list(APPEND lib_LIB_DEPS -Wl,--no-whole-archive)
|
||||
endif()
|
||||
endif()
|
||||
endif()
|
||||
target_link_libraries(${lib_NAME} ${link_type} ${lib_LIB_DEPS})
|
||||
endif()
|
||||
|
||||
if(NOT MSVC AND lib_NAME MATCHES "^lib")
|
||||
# Non-MSVC generators prepend lib to static lib target file names. Libdraco
|
||||
# already includes lib in its name. Avoid naming output files liblib*.
|
||||
set_target_properties(${lib_NAME} PROPERTIES PREFIX "")
|
||||
endif()
|
||||
|
||||
if(lib_TYPE STREQUAL SHARED AND NOT MSVC)
|
||||
set_target_properties(${lib_NAME} PROPERTIES SOVERSION ${DRACO_SOVERSION})
|
||||
endif()
|
||||
|
||||
if(BUILD_SHARED_LIBS AND (MSVC OR WIN32))
|
||||
if(lib_TYPE STREQUAL SHARED)
|
||||
target_compile_definitions(${lib_NAME} PRIVATE "DRACO_BUILDING_DLL=1")
|
||||
else()
|
||||
target_compile_definitions(${lib_NAME} PRIVATE "DRACO_BUILDING_DLL=0")
|
||||
endif()
|
||||
endif()
|
||||
|
||||
# Determine if $lib_NAME is a header only target.
|
||||
unset(sources_list)
|
||||
if(lib_SOURCES)
|
||||
set(sources_list ${lib_SOURCES})
|
||||
list(FILTER sources_list INCLUDE REGEX cc$)
|
||||
endif()
|
||||
|
||||
if(NOT sources_list)
|
||||
if(NOT XCODE)
|
||||
# This is a header only target. Tell CMake the link language.
|
||||
set_target_properties(${lib_NAME} PROPERTIES LINKER_LANGUAGE CXX)
|
||||
else()
|
||||
# The Xcode generator ignores LINKER_LANGUAGE. Add a dummy cc file.
|
||||
draco_create_dummy_source_file(TARGET ${lib_NAME} BASENAME ${lib_NAME})
|
||||
endif()
|
||||
endif()
|
||||
endmacro()
|
||||
|
|
@ -0,0 +1,13 @@
|
|||
#ifndef DRACO_TESTING_DRACO_TEST_CONFIG_H_
|
||||
#define DRACO_TESTING_DRACO_TEST_CONFIG_H_
|
||||
|
||||
// If this file is named draco_test_config.h.cmake:
|
||||
// This file is used as input at cmake generation time.
|
||||
|
||||
// If this file is named draco_test_config.h:
|
||||
// GENERATED FILE, DO NOT EDIT. SEE ABOVE.
|
||||
|
||||
#define DRACO_TEST_DATA_DIR "${DRACO_TEST_DATA_DIR}"
|
||||
#define DRACO_TEST_TEMP_DIR "${DRACO_TEST_TEMP_DIR}"
|
||||
|
||||
#endif // DRACO_TESTING_DRACO_TEST_CONFIG_H_
|
||||
|
|
@ -0,0 +1,133 @@
|
|||
if(DRACO_CMAKE_DRACO_TESTS_CMAKE)
|
||||
return()
|
||||
endif()
|
||||
set(DRACO_CMAKE_DRACO_TESTS_CMAKE 1)
|
||||
|
||||
# The factory tests are in a separate target to avoid breaking tests that rely
|
||||
# on file I/O via the factories. The fake reader and writer implementations
|
||||
# interfere with normal file I/O function.
|
||||
set(draco_factory_test_sources
|
||||
"${draco_src_root}/io/file_reader_factory_test.cc"
|
||||
"${draco_src_root}/io/file_writer_factory_test.cc")
|
||||
|
||||
list(
|
||||
APPEND
|
||||
draco_test_sources
|
||||
"${draco_src_root}/animation/keyframe_animation_encoding_test.cc"
|
||||
"${draco_src_root}/animation/keyframe_animation_test.cc"
|
||||
"${draco_src_root}/attributes/point_attribute_test.cc"
|
||||
"${draco_src_root}/compression/attributes/point_d_vector_test.cc"
|
||||
"${draco_src_root}/compression/attributes/prediction_schemes/prediction_scheme_normal_octahedron_canonicalized_transform_test.cc"
|
||||
"${draco_src_root}/compression/attributes/prediction_schemes/prediction_scheme_normal_octahedron_transform_test.cc"
|
||||
"${draco_src_root}/compression/attributes/sequential_integer_attribute_encoding_test.cc"
|
||||
"${draco_src_root}/compression/bit_coders/rans_coding_test.cc"
|
||||
"${draco_src_root}/compression/decode_test.cc"
|
||||
"${draco_src_root}/compression/encode_test.cc"
|
||||
"${draco_src_root}/compression/entropy/shannon_entropy_test.cc"
|
||||
"${draco_src_root}/compression/entropy/symbol_coding_test.cc"
|
||||
"${draco_src_root}/compression/mesh/mesh_edgebreaker_encoding_test.cc"
|
||||
"${draco_src_root}/compression/mesh/mesh_encoder_test.cc"
|
||||
"${draco_src_root}/compression/point_cloud/point_cloud_kd_tree_encoding_test.cc"
|
||||
"${draco_src_root}/compression/point_cloud/point_cloud_sequential_encoding_test.cc"
|
||||
"${draco_src_root}/core/buffer_bit_coding_test.cc"
|
||||
"${draco_src_root}/core/draco_test_base.h"
|
||||
"${draco_src_root}/core/draco_test_utils.cc"
|
||||
"${draco_src_root}/core/draco_test_utils.h"
|
||||
"${draco_src_root}/core/math_utils_test.cc"
|
||||
"${draco_src_root}/core/quantization_utils_test.cc"
|
||||
"${draco_src_root}/core/status_test.cc"
|
||||
"${draco_src_root}/core/vector_d_test.cc"
|
||||
"${draco_src_root}/io/file_reader_test_common.h"
|
||||
"${draco_src_root}/io/file_utils_test.cc"
|
||||
"${draco_src_root}/io/stdio_file_reader_test.cc"
|
||||
"${draco_src_root}/io/stdio_file_writer_test.cc"
|
||||
"${draco_src_root}/io/obj_decoder_test.cc"
|
||||
"${draco_src_root}/io/obj_encoder_test.cc"
|
||||
"${draco_src_root}/io/ply_decoder_test.cc"
|
||||
"${draco_src_root}/io/ply_reader_test.cc"
|
||||
"${draco_src_root}/io/point_cloud_io_test.cc"
|
||||
"${draco_src_root}/mesh/mesh_are_equivalent_test.cc"
|
||||
"${draco_src_root}/mesh/mesh_cleanup_test.cc"
|
||||
"${draco_src_root}/mesh/triangle_soup_mesh_builder_test.cc"
|
||||
"${draco_src_root}/metadata/metadata_encoder_test.cc"
|
||||
"${draco_src_root}/metadata/metadata_test.cc"
|
||||
"${draco_src_root}/point_cloud/point_cloud_builder_test.cc"
|
||||
"${draco_src_root}/point_cloud/point_cloud_test.cc")
|
||||
|
||||
list(APPEND draco_gtest_all
|
||||
"${draco_root}/../googletest/googletest/src/gtest-all.cc")
|
||||
list(APPEND draco_gtest_main
|
||||
"${draco_root}/../googletest/googletest/src/gtest_main.cc")
|
||||
|
||||
macro(draco_setup_test_targets)
|
||||
if(DRACO_TESTS)
|
||||
if(NOT (EXISTS ${draco_gtest_all} AND EXISTS ${draco_gtest_main}))
|
||||
message(FATAL "googletest must be a sibling directory of ${draco_root}.")
|
||||
endif()
|
||||
|
||||
list(APPEND draco_test_defines GTEST_HAS_PTHREAD=0)
|
||||
|
||||
draco_add_library(TEST
|
||||
NAME
|
||||
draco_gtest
|
||||
TYPE
|
||||
STATIC
|
||||
SOURCES
|
||||
${draco_gtest_all}
|
||||
DEFINES
|
||||
${draco_defines}
|
||||
${draco_test_defines}
|
||||
INCLUDES
|
||||
${draco_test_include_paths})
|
||||
|
||||
draco_add_library(TEST
|
||||
NAME
|
||||
draco_gtest_main
|
||||
TYPE
|
||||
STATIC
|
||||
SOURCES
|
||||
${draco_gtest_main}
|
||||
DEFINES
|
||||
${draco_defines}
|
||||
${draco_test_defines}
|
||||
INCLUDES
|
||||
${draco_test_include_paths})
|
||||
|
||||
set(DRACO_TEST_DATA_DIR "${draco_root}/testdata")
|
||||
set(DRACO_TEST_TEMP_DIR "${draco_build}/draco_test_temp")
|
||||
file(MAKE_DIRECTORY "${DRACO_TEST_TEMP_DIR}")
|
||||
|
||||
# Sets DRACO_TEST_DATA_DIR and DRACO_TEST_TEMP_DIR.
|
||||
configure_file("${draco_root}/cmake/draco_test_config.h.cmake"
|
||||
"${draco_build}/testing/draco_test_config.h")
|
||||
|
||||
# Create the test targets.
|
||||
draco_add_executable(NAME
|
||||
draco_tests
|
||||
SOURCES
|
||||
${draco_test_sources}
|
||||
DEFINES
|
||||
${draco_defines}
|
||||
${draco_test_defines}
|
||||
INCLUDES
|
||||
${draco_test_include_paths}
|
||||
LIB_DEPS
|
||||
draco_static
|
||||
draco_gtest
|
||||
draco_gtest_main)
|
||||
|
||||
draco_add_executable(NAME
|
||||
draco_factory_tests
|
||||
SOURCES
|
||||
${draco_factory_test_sources}
|
||||
DEFINES
|
||||
${draco_defines}
|
||||
${draco_test_defines}
|
||||
INCLUDES
|
||||
${draco_test_include_paths}
|
||||
LIB_DEPS
|
||||
draco_static
|
||||
draco_gtest
|
||||
draco_gtest_main)
|
||||
endif()
|
||||
endmacro()
|
||||
|
|
@ -0,0 +1,64 @@
|
|||
if(DRACO_CMAKE_DRACO_VARIABLES_CMAKE_)
|
||||
return()
|
||||
endif() # DRACO_CMAKE_DRACO_VARIABLES_CMAKE_
|
||||
set(DRACO_CMAKE_DRACO_VARIABLES_CMAKE_ 1)
|
||||
|
||||
# Halts generation when $variable_name does not refer to a directory that
|
||||
# exists.
|
||||
macro(draco_variable_must_be_directory variable_name)
|
||||
if("${variable_name}" STREQUAL "")
|
||||
message(
|
||||
FATAL_ERROR
|
||||
"Empty variable_name passed to draco_variable_must_be_directory.")
|
||||
endif()
|
||||
|
||||
if("${${variable_name}}" STREQUAL "")
|
||||
message(
|
||||
FATAL_ERROR
|
||||
"Empty variable ${variable_name} is required to build draco.")
|
||||
endif()
|
||||
|
||||
if(NOT IS_DIRECTORY "${${variable_name}}")
|
||||
message(
|
||||
FATAL_ERROR
|
||||
"${variable_name}, which is ${${variable_name}}, does not refer to a\n"
|
||||
"directory.")
|
||||
endif()
|
||||
endmacro()
|
||||
|
||||
# Adds $var_name to the tracked variables list.
|
||||
macro(draco_track_configuration_variable var_name)
|
||||
if(DRACO_VERBOSE GREATER 2)
|
||||
message("---- draco_track_configuration_variable ----\n"
|
||||
"var_name=${var_name}\n"
|
||||
"----------------------------------------------\n")
|
||||
endif()
|
||||
|
||||
list(APPEND draco_configuration_variables ${var_name})
|
||||
list(REMOVE_DUPLICATES draco_configuration_variables)
|
||||
endmacro()
|
||||
|
||||
# Logs current C++ and executable linker flags via the CMake message command.
|
||||
macro(draco_dump_cmake_flag_variables)
|
||||
unset(flag_variables)
|
||||
list(APPEND flag_variables "CMAKE_CXX_FLAGS_INIT" "CMAKE_CXX_FLAGS"
|
||||
"CMAKE_EXE_LINKER_FLAGS_INIT" "CMAKE_EXE_LINKER_FLAGS")
|
||||
if(CMAKE_BUILD_TYPE)
|
||||
list(APPEND flag_variables "CMAKE_BUILD_TYPE"
|
||||
"CMAKE_CXX_FLAGS_${CMAKE_BUILD_TYPE}_INIT"
|
||||
"CMAKE_CXX_FLAGS_${CMAKE_BUILD_TYPE}"
|
||||
"CMAKE_EXE_LINKER_FLAGS_${CMAKE_BUILD_TYPE}_INIT"
|
||||
"CMAKE_EXE_LINKER_FLAGS_${CMAKE_BUILD_TYPE}")
|
||||
endif()
|
||||
foreach(flag_variable ${flag_variables})
|
||||
message("${flag_variable}:${${flag_variable}}")
|
||||
endforeach()
|
||||
endmacro()
|
||||
|
||||
# Dumps the variables tracked in $draco_configuration_variables via the CMake
|
||||
# message command.
|
||||
macro(draco_dump_tracked_configuration_variables)
|
||||
foreach(config_variable ${draco_configuration_variables})
|
||||
message("${config_variable}:${${config_variable}}")
|
||||
endforeach()
|
||||
endmacro()
|
||||
|
|
@ -0,0 +1,19 @@
|
|||
if(DRACO_CMAKE_SANITIZERS_CMAKE_)
|
||||
return()
|
||||
endif()
|
||||
set(DRACO_CMAKE_SANITIZERS_CMAKE_ 1)
|
||||
|
||||
if(MSVC OR NOT SANITIZE)
|
||||
return()
|
||||
endif()
|
||||
|
||||
include("${draco_root}/cmake/compiler_flags.cmake")
|
||||
|
||||
string(TOLOWER ${SANITIZE} SANITIZE)
|
||||
|
||||
# Require the sanitizer requested.
|
||||
require_linker_flag("-fsanitize=${SANITIZE}")
|
||||
require_compiler_flag("-fsanitize=${SANITIZE}" YES)
|
||||
|
||||
# Make callstacks accurate.
|
||||
require_compiler_flag("-fno-omit-frame-pointer -fno-optimize-sibling-calls" YES)
|
||||
|
|
@ -0,0 +1,14 @@
|
|||
if(DRACO_CMAKE_TOOLCHAINS_AARCH64_LINUX_GNU_CMAKE_)
|
||||
return()
|
||||
endif() # DRACO_CMAKE_TOOLCHAINS_AARCH64_LINUX_GNU_CMAKE_
|
||||
set(DRACO_CMAKE_TOOLCHAINS_AARCH64_LINUX_GNU_CMAKE_ 1)
|
||||
|
||||
set(CMAKE_SYSTEM_NAME "Linux")
|
||||
|
||||
if("${CROSS}" STREQUAL "")
|
||||
set(CROSS aarch64-linux-gnu-)
|
||||
endif()
|
||||
|
||||
set(CMAKE_CXX_COMPILER ${CROSS}g++)
|
||||
set(CMAKE_CXX_FLAGS_INIT "-march=armv8-a")
|
||||
set(CMAKE_SYSTEM_PROCESSOR "aarch64")
|
||||
|
|
@ -0,0 +1,23 @@
|
|||
if(DRACO_CMAKE_TOOLCHAINS_ANDROID_NDK_COMMON_CMAKE_)
|
||||
return()
|
||||
endif()
|
||||
set(DRACO_CMAKE_TOOLCHAINS_ANDROID_NDK_COMMON_CMAKE_ 1)
|
||||
|
||||
# Toolchain files do not have access to cached variables:
|
||||
# https://gitlab.kitware.com/cmake/cmake/issues/16170. Set an intermediate
|
||||
# environment variable when loaded the first time.
|
||||
if(DRACO_ANDROID_NDK_PATH)
|
||||
set(ENV{DRACO_ANDROID_NDK_PATH} "${DRACO_ANDROID_NDK_PATH}")
|
||||
else()
|
||||
set(DRACO_ANDROID_NDK_PATH "$ENV{DRACO_ANDROID_NDK_PATH}")
|
||||
endif()
|
||||
|
||||
set(CMAKE_SYSTEM_NAME Android)
|
||||
|
||||
if(NOT CMAKE_ANDROID_STL_TYPE)
|
||||
set(CMAKE_ANDROID_STL_TYPE c++_static)
|
||||
endif()
|
||||
|
||||
if(NOT CMAKE_ANDROID_NDK_TOOLCHAIN_VERSION)
|
||||
set(CMAKE_ANDROID_NDK_TOOLCHAIN_VERSION clang)
|
||||
endif()
|
||||
|
|
@ -0,0 +1,39 @@
|
|||
if(DRACO_CMAKE_TOOLCHAINS_ANDROID_CMAKE_)
|
||||
return()
|
||||
endif() # DRACO_CMAKE_TOOLCHAINS_ANDROID_CMAKE_
|
||||
|
||||
# Additional ANDROID_* settings are available, see:
|
||||
# https://developer.android.com/ndk/guides/cmake#variables
|
||||
|
||||
if(NOT ANDROID_PLATFORM)
|
||||
set(ANDROID_PLATFORM android-21)
|
||||
endif()
|
||||
|
||||
# Choose target architecture with:
|
||||
#
|
||||
# -DANDROID_ABI={armeabi-v7a,armeabi-v7a with NEON,arm64-v8a,x86,x86_64}
|
||||
if(NOT ANDROID_ABI)
|
||||
set(ANDROID_ABI arm64-v8a)
|
||||
endif()
|
||||
|
||||
# Force arm mode for 32-bit targets (instead of the default thumb) to improve
|
||||
# performance.
|
||||
if(NOT ANDROID_ARM_MODE)
|
||||
set(ANDROID_ARM_MODE arm)
|
||||
endif()
|
||||
|
||||
# Toolchain files do not have access to cached variables:
|
||||
# https://gitlab.kitware.com/cmake/cmake/issues/16170. Set an intermediate
|
||||
# environment variable when loaded the first time.
|
||||
if(DRACO_ANDROID_NDK_PATH)
|
||||
set(ENV{DRACO_ANDROID_NDK_PATH} "${DRACO_ANDROID_NDK_PATH}")
|
||||
else()
|
||||
set(DRACO_ANDROID_NDK_PATH "$ENV{DRACO_ANDROID_NDK_PATH}")
|
||||
endif()
|
||||
|
||||
if(NOT DRACO_ANDROID_NDK_PATH)
|
||||
message(FATAL_ERROR "DRACO_ANDROID_NDK_PATH not set.")
|
||||
return()
|
||||
endif()
|
||||
|
||||
include("${DRACO_ANDROID_NDK_PATH}/build/cmake/android.toolchain.cmake")
|
||||
|
|
@ -0,0 +1,17 @@
|
|||
if(DRACO_CMAKE_TOOLCHAINS_ARM_IOS_COMMON_CMAKE_)
|
||||
return()
|
||||
endif()
|
||||
set(DRACO_CMAKE_ARM_IOS_COMMON_CMAKE_ 1)
|
||||
|
||||
set(CMAKE_SYSTEM_NAME "Darwin")
|
||||
if(CMAKE_OSX_SDK)
|
||||
set(CMAKE_OSX_SYSROOT ${CMAKE_OSX_SDK})
|
||||
else()
|
||||
set(CMAKE_OSX_SYSROOT iphoneos)
|
||||
endif()
|
||||
set(CMAKE_C_COMPILER clang)
|
||||
set(CMAKE_C_COMPILER_ARG1 "-arch ${CMAKE_SYSTEM_PROCESSOR}")
|
||||
set(CMAKE_CXX_COMPILER clang++)
|
||||
set(CMAKE_CXX_COMPILER_ARG1 "-arch ${CMAKE_SYSTEM_PROCESSOR}")
|
||||
|
||||
# TODO(tomfinegan): Handle bit code embedding.
|
||||
|
|
@ -0,0 +1,15 @@
|
|||
if(DRACO_CMAKE_TOOLCHAINS_ARM_LINUX_GNUEABIHF_CMAKE_)
|
||||
return()
|
||||
endif() # DRACO_CMAKE_TOOLCHAINS_ARM_LINUX_GNUEABIHF_CMAKE_
|
||||
set(DRACO_CMAKE_TOOLCHAINS_ARM_LINUX_GNUEABIHF_CMAKE_ 1)
|
||||
|
||||
set(CMAKE_SYSTEM_NAME "Linux")
|
||||
|
||||
if("${CROSS}" STREQUAL "")
|
||||
set(CROSS arm-linux-gnueabihf-)
|
||||
endif()
|
||||
|
||||
set(CMAKE_CXX_COMPILER ${CROSS}g++)
|
||||
set(CMAKE_CXX_FLAGS_INIT "-march=armv7-a -marm")
|
||||
set(CMAKE_SYSTEM_PROCESSOR "armv7")
|
||||
set(DRACO_NEON_INTRINSICS_FLAG "-mfpu=neon")
|
||||
|
|
@ -0,0 +1,16 @@
|
|||
if(DRACO_CMAKE_TOOLCHAINS_ARM64_ANDROID_NDK_LIBCPP_CMAKE_)
|
||||
return()
|
||||
endif()
|
||||
set(DRACO_CMAKE_TOOLCHAINS_ARM64_ANDROID_NDK_LIBCPP_CMAKE_ 1)
|
||||
|
||||
include("${CMAKE_CURRENT_LIST_DIR}/android-ndk-common.cmake")
|
||||
|
||||
if(NOT ANDROID_PLATFORM)
|
||||
set(ANROID_PLATFORM android-21)
|
||||
endif()
|
||||
|
||||
if(NOT ANDROID_ABI)
|
||||
set(ANDROID_ABI arm64-v8a)
|
||||
endif()
|
||||
|
||||
include("${DRACO_ANDROID_NDK_PATH}/build/cmake/android.toolchain.cmake")
|
||||
|
|
@ -0,0 +1,14 @@
|
|||
if(DRACO_CMAKE_TOOLCHAINS_ARM64_IOS_CMAKE_)
|
||||
return()
|
||||
endif()
|
||||
set(DRACO_CMAKE_TOOLCHAINS_ARM64_IOS_CMAKE_ 1)
|
||||
|
||||
if(XCODE)
|
||||
# TODO(tomfinegan): Handle arm builds in Xcode.
|
||||
message(FATAL_ERROR "This toolchain does not support Xcode.")
|
||||
endif()
|
||||
|
||||
set(CMAKE_SYSTEM_PROCESSOR "arm64")
|
||||
set(CMAKE_OSX_ARCHITECTURES "arm64")
|
||||
|
||||
include("${CMAKE_CURRENT_LIST_DIR}/arm-ios-common.cmake")
|
||||
|
|
@ -0,0 +1,18 @@
|
|||
if(DRACO_CMAKE_TOOLCHAINS_ARM64_LINUX_GCC_CMAKE_)
|
||||
return()
|
||||
endif()
|
||||
set(DRACO_CMAKE_TOOLCHAINS_ARM64_LINUX_GCC_CMAKE_ 1)
|
||||
|
||||
set(CMAKE_SYSTEM_NAME "Linux")
|
||||
|
||||
if("${CROSS}" STREQUAL "")
|
||||
# Default the cross compiler prefix to something known to work.
|
||||
set(CROSS aarch64-linux-gnu-)
|
||||
endif()
|
||||
|
||||
set(CMAKE_C_COMPILER ${CROSS}gcc)
|
||||
set(CMAKE_CXX_COMPILER ${CROSS}g++)
|
||||
set(AS_EXECUTABLE ${CROSS}as)
|
||||
set(CMAKE_C_COMPILER_ARG1 "-march=armv8-a")
|
||||
set(CMAKE_CXX_COMPILER_ARG1 "-march=armv8-a")
|
||||
set(CMAKE_SYSTEM_PROCESSOR "arm64")
|
||||
|
|
@ -0,0 +1,16 @@
|
|||
if(DRACO_CMAKE_TOOLCHAINS_ARMV7_ANDROID_NDK_LIBCPP_CMAKE_)
|
||||
return()
|
||||
endif()
|
||||
set(DRACO_CMAKE_TOOLCHAINS_ARMV7_ANDROID_NDK_LIBCPP_CMAKE_ 1)
|
||||
|
||||
include("${CMAKE_CURRENT_LIST_DIR}/android-ndk-common.cmake")
|
||||
|
||||
if(NOT ANDROID_PLATFORM)
|
||||
set(ANDROID_PLATFORM android-18)
|
||||
endif()
|
||||
|
||||
if(NOT ANDROID_ABI)
|
||||
set(ANDROID_ABI armeabi-v7a)
|
||||
endif()
|
||||
|
||||
include("${DRACO_ANDROID_NDK_PATH}/build/cmake/android.toolchain.cmake")
|
||||
|
|
@ -0,0 +1,14 @@
|
|||
if(DRACO_CMAKE_TOOLCHAINS_ARMV7_IOS_CMAKE_)
|
||||
return()
|
||||
endif()
|
||||
set(DRACO_CMAKE_TOOLCHAINS_ARMV7_IOS_CMAKE_ 1)
|
||||
|
||||
if(XCODE)
|
||||
# TODO(tomfinegan): Handle arm builds in Xcode.
|
||||
message(FATAL_ERROR "This toolchain does not support Xcode.")
|
||||
endif()
|
||||
|
||||
set(CMAKE_SYSTEM_PROCESSOR "armv7")
|
||||
set(CMAKE_OSX_ARCHITECTURES "armv7")
|
||||
|
||||
include("${CMAKE_CURRENT_LIST_DIR}/arm-ios-common.cmake")
|
||||
|
|
@ -0,0 +1,24 @@
|
|||
if(DRACO_CMAKE_TOOLCHAINS_ARMV7_LINUX_GCC_CMAKE_)
|
||||
return()
|
||||
endif()
|
||||
set(DRACO_CMAKE_TOOLCHAINS_ARMV7_LINUX_GCC_CMAKE_ 1)
|
||||
|
||||
set(CMAKE_SYSTEM_NAME "Linux")
|
||||
|
||||
if("${CROSS}" STREQUAL "")
|
||||
# Default the cross compiler prefix to something known to work.
|
||||
set(CROSS arm-linux-gnueabihf-)
|
||||
endif()
|
||||
|
||||
if(NOT ${CROSS} MATCHES hf-$)
|
||||
set(DRACO_EXTRA_TOOLCHAIN_FLAGS "-mfloat-abi=softfp")
|
||||
endif()
|
||||
|
||||
set(CMAKE_C_COMPILER ${CROSS}gcc)
|
||||
set(CMAKE_CXX_COMPILER ${CROSS}g++)
|
||||
set(AS_EXECUTABLE ${CROSS}as)
|
||||
set(CMAKE_C_COMPILER_ARG1
|
||||
"-march=armv7-a -mfpu=neon ${DRACO_EXTRA_TOOLCHAIN_FLAGS}")
|
||||
set(CMAKE_CXX_COMPILER_ARG1
|
||||
"-march=armv7-a -mfpu=neon ${DRACO_EXTRA_TOOLCHAIN_FLAGS}")
|
||||
set(CMAKE_SYSTEM_PROCESSOR "armv7")
|
||||
|
|
@ -0,0 +1,14 @@
|
|||
if(DRACO_CMAKE_TOOLCHAINS_ARMV7S_IOS_CMAKE_)
|
||||
return()
|
||||
endif()
|
||||
set(DRACO_CMAKE_TOOLCHAINS_ARMV7S_IOS_CMAKE_ 1)
|
||||
|
||||
if(XCODE)
|
||||
# TODO(tomfinegan): Handle arm builds in Xcode.
|
||||
message(FATAL_ERROR "This toolchain does not support Xcode.")
|
||||
endif()
|
||||
|
||||
set(CMAKE_SYSTEM_PROCESSOR "armv7s")
|
||||
set(CMAKE_OSX_ARCHITECTURES "armv7s")
|
||||
|
||||
include("${CMAKE_CURRENT_LIST_DIR}/arm-ios-common.cmake")
|
||||
|
|
@ -0,0 +1,15 @@
|
|||
if(DRACO_CMAKE_TOOLCHAINS_i386_IOS_CMAKE_)
|
||||
return()
|
||||
endif()
|
||||
set(DRACO_CMAKE_TOOLCHAINS_i386_IOS_CMAKE_ 1)
|
||||
|
||||
if(XCODE)
|
||||
# TODO(tomfinegan): Handle arm builds in Xcode.
|
||||
message(FATAL_ERROR "This toolchain does not support Xcode.")
|
||||
endif()
|
||||
|
||||
set(CMAKE_SYSTEM_PROCESSOR "i386")
|
||||
set(CMAKE_OSX_ARCHITECTURES "i386")
|
||||
set(CMAKE_OSX_SDK "iphonesimulator")
|
||||
|
||||
include("${CMAKE_CURRENT_LIST_DIR}/arm-ios-common.cmake")
|
||||
|
|
@ -0,0 +1,16 @@
|
|||
if(DRACO_CMAKE_TOOLCHAINS_X86_ANDROID_NDK_LIBCPP_CMAKE_)
|
||||
return()
|
||||
endif()
|
||||
set(DRACO_CMAKE_TOOLCHAINS_X86_ANDROID_NDK_LIBCPP_CMAKE_ 1)
|
||||
|
||||
include("${CMAKE_CURRENT_LIST_DIR}/android-ndk-common.cmake")
|
||||
|
||||
if(NOT ANDROID_PLATFORM)
|
||||
set(ANDROID_PLATFORM android-18)
|
||||
endif()
|
||||
|
||||
if(NOT ANDROID_ABI)
|
||||
set(ANDROID_ABI x86)
|
||||
endif()
|
||||
|
||||
include("${DRACO_ANDROID_NDK_PATH}/build/cmake/android.toolchain.cmake")
|
||||
|
|
@ -0,0 +1,16 @@
|
|||
if(DRACO_CMAKE_TOOLCHAINS_X86_64_ANDROID_NDK_LIBCPP_CMAKE_)
|
||||
return()
|
||||
endif()
|
||||
set(DRACO_CMAKE_TOOLCHAINS_X86_64_ANDROID_NDK_LIBCPP_CMAKE_ 1)
|
||||
|
||||
include("${CMAKE_CURRENT_LIST_DIR}/android-ndk-common.cmake")
|
||||
|
||||
if(NOT ANDROID_PLATFORM)
|
||||
set(ANDROID_PLATFORM android-21)
|
||||
endif()
|
||||
|
||||
if(NOT ANDROID_ABI)
|
||||
set(ANDROID_ABI x86_64)
|
||||
endif()
|
||||
|
||||
include("${DRACO_ANDROID_NDK_PATH}/build/cmake/android.toolchain.cmake")
|
||||
|
|
@ -0,0 +1,15 @@
|
|||
if(DRACO_CMAKE_TOOLCHAINS_X86_64_IOS_CMAKE_)
|
||||
return()
|
||||
endif()
|
||||
set(DRACO_CMAKE_TOOLCHAINS_X86_64_IOS_CMAKE_ 1)
|
||||
|
||||
if(XCODE)
|
||||
# TODO(tomfinegan): Handle arm builds in Xcode.
|
||||
message(FATAL_ERROR "This toolchain does not support Xcode.")
|
||||
endif()
|
||||
|
||||
set(CMAKE_SYSTEM_PROCESSOR "x86_64")
|
||||
set(CMAKE_OSX_ARCHITECTURES "x86_64")
|
||||
set(CMAKE_OSX_SDK "iphonesimulator")
|
||||
|
||||
include("${CMAKE_CURRENT_LIST_DIR}/arm-ios-common.cmake")
|
||||
|
|
@ -0,0 +1,79 @@
|
|||
if(DRACO_CMAKE_UTIL_CMAKE_)
|
||||
return()
|
||||
endif()
|
||||
set(DRACO_CMAKE_UTIL_CMAKE_ 1)
|
||||
|
||||
# Creates dummy source file in $draco_build_dir named $basename.$extension and
|
||||
# returns the full path to the dummy source file via the $out_file_path
|
||||
# parameter.
|
||||
function(create_dummy_source_file basename extension out_file_path)
|
||||
set(dummy_source_file "${draco_build_dir}/${basename}.${extension}")
|
||||
file(WRITE "${dummy_source_file}.new"
|
||||
"// Generated file. DO NOT EDIT!\n"
|
||||
"// ${target_name} needs a ${extension} file to force link language, \n"
|
||||
"// or to silence a harmless CMake warning: Ignore me.\n"
|
||||
"void ${target_name}_dummy_function(void) {}\n")
|
||||
|
||||
# Will replace ${dummy_source_file} only if the file content has changed.
|
||||
# This prevents forced Draco rebuilds after CMake runs.
|
||||
configure_file("${dummy_source_file}.new" "${dummy_source_file}")
|
||||
file(REMOVE "${dummy_source_file}.new")
|
||||
|
||||
set(${out_file_path} ${dummy_source_file} PARENT_SCOPE)
|
||||
endfunction()
|
||||
|
||||
# Convenience function for adding a dummy source file to $target_name using
|
||||
# $extension as the file extension. Wraps create_dummy_source_file().
|
||||
function(add_dummy_source_file_to_target target_name extension)
|
||||
create_dummy_source_file("${target_name}" "${extension}" "dummy_source_file")
|
||||
target_sources(${target_name} PRIVATE ${dummy_source_file})
|
||||
endfunction()
|
||||
|
||||
# Extracts the version number from $version_file and returns it to the user via
|
||||
# $version_string_out_var. This is achieved by finding the first instance of the
|
||||
# kDracoVersion variable and then removing everything but the string literal
|
||||
# assigned to the variable. Quotes and semicolon are stripped from the returned
|
||||
# string.
|
||||
function(extract_version_string version_file version_string_out_var)
|
||||
file(STRINGS "${version_file}" draco_version REGEX "kDracoVersion")
|
||||
list(GET draco_version 0 draco_version)
|
||||
string(REPLACE "static const char kDracoVersion[] = " "" draco_version
|
||||
"${draco_version}")
|
||||
string(REPLACE ";" "" draco_version "${draco_version}")
|
||||
string(REPLACE "\"" "" draco_version "${draco_version}")
|
||||
set("${version_string_out_var}" "${draco_version}" PARENT_SCOPE)
|
||||
endfunction()
|
||||
|
||||
# Sets CMake compiler launcher to $launcher_name when $launcher_name is found in
|
||||
# $PATH. Warns user about ignoring build flag $launcher_flag when $launcher_name
|
||||
# is not found in $PATH.
|
||||
function(set_compiler_launcher launcher_flag launcher_name)
|
||||
find_program(launcher_path "${launcher_name}")
|
||||
if(launcher_path)
|
||||
set(CMAKE_C_COMPILER_LAUNCHER "${launcher_path}" PARENT_SCOPE)
|
||||
set(CMAKE_CXX_COMPILER_LAUNCHER "${launcher_path}" PARENT_SCOPE)
|
||||
message("--- Using ${launcher_name} as compiler launcher.")
|
||||
else()
|
||||
message(
|
||||
WARNING "--- Cannot find ${launcher_name}, ${launcher_flag} ignored.")
|
||||
endif()
|
||||
endfunction()
|
||||
|
||||
# Terminates CMake execution when $var_name is unset in the environment. Sets
|
||||
# CMake variable to the value of the environment variable when the variable is
|
||||
# present in the environment.
|
||||
macro(require_variable var_name)
|
||||
if("$ENV{${var_name}}" STREQUAL "")
|
||||
message(FATAL_ERROR "${var_name} must be set in environment.")
|
||||
endif()
|
||||
set_variable_if_unset(${var_name} "")
|
||||
endmacro()
|
||||
|
||||
# Sets $var_name to $default_value if not already set.
|
||||
macro(set_variable_if_unset var_name default_value)
|
||||
if(NOT "$ENV{${var_name}}" STREQUAL "")
|
||||
set(${var_name} $ENV{${var_name}})
|
||||
elseif(NOT ${var_name})
|
||||
set(${var_name} ${default_value})
|
||||
endif()
|
||||
endmacro()
|
||||
|
|
@ -0,0 +1,54 @@
|
|||
// Copyright 2017 The Draco Authors.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
//
|
||||
#include "draco/animation/keyframe_animation.h"
|
||||
|
||||
namespace draco {
|
||||
|
||||
KeyframeAnimation::KeyframeAnimation() {}
|
||||
|
||||
bool KeyframeAnimation::SetTimestamps(
|
||||
const std::vector<TimestampType> ×tamp) {
|
||||
// Already added attributes.
|
||||
const int32_t num_frames = timestamp.size();
|
||||
if (num_attributes() > 0) {
|
||||
// Timestamp attribute could be added only once.
|
||||
if (timestamps()->size()) {
|
||||
return false;
|
||||
} else {
|
||||
// Check if the number of frames is consistent with
|
||||
// the existing keyframes.
|
||||
if (num_frames != num_points()) {
|
||||
return false;
|
||||
}
|
||||
}
|
||||
} else {
|
||||
// This is the first attribute.
|
||||
set_num_frames(num_frames);
|
||||
}
|
||||
|
||||
// Add attribute for time stamp data.
|
||||
std::unique_ptr<PointAttribute> timestamp_att =
|
||||
std::unique_ptr<PointAttribute>(new PointAttribute());
|
||||
timestamp_att->Init(GeometryAttribute::GENERIC, 1, DT_FLOAT32, false,
|
||||
num_frames);
|
||||
for (PointIndex i(0); i < num_frames; ++i) {
|
||||
timestamp_att->SetAttributeValue(timestamp_att->mapped_index(i),
|
||||
×tamp[i.value()]);
|
||||
}
|
||||
this->SetAttribute(kTimestampId, std::move(timestamp_att));
|
||||
return true;
|
||||
}
|
||||
|
||||
} // namespace draco
|
||||
|
|
@ -0,0 +1,107 @@
|
|||
// Copyright 2017 The Draco Authors.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
//
|
||||
#ifndef DRACO_ANIMATION_KEYFRAME_ANIMATION_H_
|
||||
#define DRACO_ANIMATION_KEYFRAME_ANIMATION_H_
|
||||
|
||||
#include <vector>
|
||||
|
||||
#include "draco/point_cloud/point_cloud.h"
|
||||
|
||||
namespace draco {
|
||||
|
||||
// Class for holding keyframe animation data. It will have two or more
|
||||
// attributes as a point cloud. The first attribute is always the timestamp
|
||||
// of the animation. Each KeyframeAnimation could have multiple animations with
|
||||
// the same number of frames. Each animation will be treated as a point
|
||||
// attribute.
|
||||
class KeyframeAnimation : public PointCloud {
|
||||
public:
|
||||
// Force time stamp to be float type.
|
||||
using TimestampType = float;
|
||||
|
||||
KeyframeAnimation();
|
||||
|
||||
// Animation must have only one timestamp attribute.
|
||||
// This function must be called before adding any animation data.
|
||||
// Returns false if timestamp already exists.
|
||||
bool SetTimestamps(const std::vector<TimestampType> ×tamp);
|
||||
|
||||
// Returns an id for the added animation data. This id will be used to
|
||||
// identify this animation.
|
||||
// Returns -1 if error, e.g. number of frames is not consistent.
|
||||
// Type |T| should be consistent with |DataType|, e.g:
|
||||
// float - DT_FLOAT32,
|
||||
// int32_t - DT_INT32, ...
|
||||
template <typename T>
|
||||
int32_t AddKeyframes(DataType data_type, uint32_t num_components,
|
||||
const std::vector<T> &data);
|
||||
|
||||
const PointAttribute *timestamps() const {
|
||||
return GetAttributeByUniqueId(kTimestampId);
|
||||
}
|
||||
const PointAttribute *keyframes(int32_t animation_id) const {
|
||||
return GetAttributeByUniqueId(animation_id);
|
||||
}
|
||||
|
||||
// Number of frames should be equal to number points in the point cloud.
|
||||
void set_num_frames(int32_t num_frames) { set_num_points(num_frames); }
|
||||
int32_t num_frames() const { return static_cast<int32_t>(num_points()); }
|
||||
|
||||
int32_t num_animations() const { return num_attributes() - 1; }
|
||||
|
||||
private:
|
||||
// Attribute id of timestamp is fixed to 0.
|
||||
static constexpr int32_t kTimestampId = 0;
|
||||
};
|
||||
|
||||
template <typename T>
|
||||
int32_t KeyframeAnimation::AddKeyframes(DataType data_type,
|
||||
uint32_t num_components,
|
||||
const std::vector<T> &data) {
|
||||
// TODO(draco-eng): Verify T is consistent with |data_type|.
|
||||
if (num_components == 0) {
|
||||
return -1;
|
||||
}
|
||||
// If timestamps is not added yet, then reserve attribute 0 for timestamps.
|
||||
if (!num_attributes()) {
|
||||
// Add a temporary attribute with 0 points to fill attribute id 0.
|
||||
std::unique_ptr<PointAttribute> temp_att =
|
||||
std::unique_ptr<PointAttribute>(new PointAttribute());
|
||||
temp_att->Init(GeometryAttribute::GENERIC, num_components, data_type, false,
|
||||
0);
|
||||
this->AddAttribute(std::move(temp_att));
|
||||
|
||||
set_num_frames(data.size() / num_components);
|
||||
}
|
||||
|
||||
if (data.size() != num_components * num_frames()) {
|
||||
return -1;
|
||||
}
|
||||
|
||||
std::unique_ptr<PointAttribute> keyframe_att =
|
||||
std::unique_ptr<PointAttribute>(new PointAttribute());
|
||||
keyframe_att->Init(GeometryAttribute::GENERIC, num_components, data_type,
|
||||
false, num_frames());
|
||||
const size_t stride = num_components;
|
||||
for (PointIndex i(0); i < num_frames(); ++i) {
|
||||
keyframe_att->SetAttributeValue(keyframe_att->mapped_index(i),
|
||||
&data[i.value() * stride]);
|
||||
}
|
||||
return this->AddAttribute(std::move(keyframe_att));
|
||||
}
|
||||
|
||||
} // namespace draco
|
||||
|
||||
#endif // DRACO_ANIMATION_KEYFRAME_ANIMATION_H_
|
||||
|
|
@ -0,0 +1,30 @@
|
|||
// Copyright 2017 The Draco Authors.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
//
|
||||
#include "draco/animation/keyframe_animation_decoder.h"
|
||||
|
||||
namespace draco {
|
||||
|
||||
Status KeyframeAnimationDecoder::Decode(const DecoderOptions &options,
|
||||
DecoderBuffer *in_buffer,
|
||||
KeyframeAnimation *animation) {
|
||||
const auto status = PointCloudSequentialDecoder::Decode(
|
||||
options, in_buffer, static_cast<PointCloud *>(animation));
|
||||
if (!status.ok()) {
|
||||
return status;
|
||||
}
|
||||
return OkStatus();
|
||||
}
|
||||
|
||||
} // namespace draco
|
||||
|
|
@ -0,0 +1,34 @@
|
|||
// Copyright 2017 The Draco Authors.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
//
|
||||
#ifndef DRACO_ANIMATION_KEYFRAME_ANIMATION_DECODER_H_
|
||||
#define DRACO_ANIMATION_KEYFRAME_ANIMATION_DECODER_H_
|
||||
|
||||
#include "draco/animation/keyframe_animation.h"
|
||||
#include "draco/compression/point_cloud/point_cloud_sequential_decoder.h"
|
||||
|
||||
namespace draco {
|
||||
|
||||
// Class for decoding keyframe animation.
|
||||
class KeyframeAnimationDecoder : private PointCloudSequentialDecoder {
|
||||
public:
|
||||
KeyframeAnimationDecoder(){};
|
||||
|
||||
Status Decode(const DecoderOptions &options, DecoderBuffer *in_buffer,
|
||||
KeyframeAnimation *animation);
|
||||
};
|
||||
|
||||
} // namespace draco
|
||||
|
||||
#endif // DRACO_ANIMATION_KEYFRAME_ANIMATION_DECODER_H_
|
||||
|
|
@ -0,0 +1,28 @@
|
|||
// Copyright 2017 The Draco Authors.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
//
|
||||
#include "draco/animation/keyframe_animation_encoder.h"
|
||||
|
||||
namespace draco {
|
||||
|
||||
KeyframeAnimationEncoder::KeyframeAnimationEncoder() {}
|
||||
|
||||
Status KeyframeAnimationEncoder::EncodeKeyframeAnimation(
|
||||
const KeyframeAnimation &animation, const EncoderOptions &options,
|
||||
EncoderBuffer *out_buffer) {
|
||||
SetPointCloud(animation);
|
||||
return Encode(options, out_buffer);
|
||||
}
|
||||
|
||||
} // namespace draco
|
||||
|
|
@ -0,0 +1,39 @@
|
|||
// Copyright 2017 The Draco Authors.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
//
|
||||
#ifndef DRACO_ANIMATION_KEYFRAME_ANIMATION_ENCODER_H_
|
||||
#define DRACO_ANIMATION_KEYFRAME_ANIMATION_ENCODER_H_
|
||||
|
||||
#include "draco/animation/keyframe_animation.h"
|
||||
#include "draco/compression/point_cloud/point_cloud_sequential_encoder.h"
|
||||
|
||||
namespace draco {
|
||||
|
||||
// Class for encoding keyframe animation. It takes KeyframeAnimation as a
|
||||
// PointCloud and compress it. It's mostly a wrapper around PointCloudEncoder so
|
||||
// that the animation module could be separated from geometry compression when
|
||||
// exposed to developers.
|
||||
class KeyframeAnimationEncoder : private PointCloudSequentialEncoder {
|
||||
public:
|
||||
KeyframeAnimationEncoder();
|
||||
|
||||
// Encode an animation to a buffer.
|
||||
Status EncodeKeyframeAnimation(const KeyframeAnimation &animation,
|
||||
const EncoderOptions &options,
|
||||
EncoderBuffer *out_buffer);
|
||||
};
|
||||
|
||||
} // namespace draco
|
||||
|
||||
#endif // DRACO_ANIMATION_KEYFRAME_ANIMATION_ENCODER_H_
|
||||
|
|
@ -0,0 +1,168 @@
|
|||
// Copyright 2017 The Draco Authors.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
//
|
||||
#include "draco/animation/keyframe_animation.h"
|
||||
#include "draco/animation/keyframe_animation_decoder.h"
|
||||
#include "draco/animation/keyframe_animation_encoder.h"
|
||||
#include "draco/core/draco_test_base.h"
|
||||
#include "draco/core/draco_test_utils.h"
|
||||
|
||||
namespace draco {
|
||||
|
||||
class KeyframeAnimationEncodingTest : public ::testing::Test {
|
||||
protected:
|
||||
KeyframeAnimationEncodingTest() {}
|
||||
|
||||
bool CreateAndAddTimestamps(int32_t num_frames) {
|
||||
timestamps_.resize(num_frames);
|
||||
for (int i = 0; i < timestamps_.size(); ++i)
|
||||
timestamps_[i] = static_cast<draco::KeyframeAnimation::TimestampType>(i);
|
||||
return keyframe_animation_.SetTimestamps(timestamps_);
|
||||
}
|
||||
|
||||
int32_t CreateAndAddAnimationData(int32_t num_frames,
|
||||
uint32_t num_components) {
|
||||
// Create and add animation data with.
|
||||
animation_data_.resize(num_frames * num_components);
|
||||
for (int i = 0; i < animation_data_.size(); ++i)
|
||||
animation_data_[i] = static_cast<float>(i);
|
||||
return keyframe_animation_.AddKeyframes(draco::DT_FLOAT32, num_components,
|
||||
animation_data_);
|
||||
}
|
||||
|
||||
template <int num_components_t>
|
||||
void CompareAnimationData(const KeyframeAnimation &animation0,
|
||||
const KeyframeAnimation &animation1,
|
||||
bool quantized) {
|
||||
ASSERT_EQ(animation0.num_frames(), animation1.num_frames());
|
||||
ASSERT_EQ(animation0.num_animations(), animation1.num_animations());
|
||||
|
||||
if (quantized) {
|
||||
// TODO(hemmer) : Add test for stable quantization.
|
||||
// Quantization will result in slightly different values.
|
||||
// Skip comparing values.
|
||||
return;
|
||||
}
|
||||
|
||||
// Compare time stamp.
|
||||
const auto timestamp_att0 = animation0.timestamps();
|
||||
const auto timestamp_att1 = animation0.timestamps();
|
||||
for (int i = 0; i < animation0.num_frames(); ++i) {
|
||||
std::array<float, 1> att_value0;
|
||||
std::array<float, 1> att_value1;
|
||||
ASSERT_TRUE((timestamp_att0->GetValue<float, 1>(
|
||||
draco::AttributeValueIndex(i), &att_value0)));
|
||||
ASSERT_TRUE((timestamp_att1->GetValue<float, 1>(
|
||||
draco::AttributeValueIndex(i), &att_value1)));
|
||||
ASSERT_FLOAT_EQ(att_value0[0], att_value1[0]);
|
||||
}
|
||||
|
||||
for (int animation_id = 1; animation_id < animation0.num_animations();
|
||||
++animation_id) {
|
||||
// Compare keyframe data.
|
||||
const auto keyframe_att0 = animation0.keyframes(animation_id);
|
||||
const auto keyframe_att1 = animation1.keyframes(animation_id);
|
||||
ASSERT_EQ(keyframe_att0->num_components(),
|
||||
keyframe_att1->num_components());
|
||||
for (int i = 0; i < animation0.num_frames(); ++i) {
|
||||
std::array<float, num_components_t> att_value0;
|
||||
std::array<float, num_components_t> att_value1;
|
||||
ASSERT_TRUE((keyframe_att0->GetValue<float, num_components_t>(
|
||||
draco::AttributeValueIndex(i), &att_value0)));
|
||||
ASSERT_TRUE((keyframe_att1->GetValue<float, num_components_t>(
|
||||
draco::AttributeValueIndex(i), &att_value1)));
|
||||
for (int j = 0; j < att_value0.size(); ++j) {
|
||||
ASSERT_FLOAT_EQ(att_value0[j], att_value1[j]);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
template <int num_components_t>
|
||||
void TestKeyframeAnimationEncoding() {
|
||||
TestKeyframeAnimationEncoding<num_components_t>(false);
|
||||
}
|
||||
|
||||
template <int num_components_t>
|
||||
void TestKeyframeAnimationEncoding(bool quantized) {
|
||||
// Encode animation class.
|
||||
draco::EncoderBuffer buffer;
|
||||
draco::KeyframeAnimationEncoder encoder;
|
||||
EncoderOptions options = EncoderOptions::CreateDefaultOptions();
|
||||
if (quantized) {
|
||||
// Set quantization for timestamps.
|
||||
options.SetAttributeInt(0, "quantization_bits", 20);
|
||||
// Set quantization for keyframes.
|
||||
for (int i = 1; i <= keyframe_animation_.num_animations(); ++i) {
|
||||
options.SetAttributeInt(i, "quantization_bits", 20);
|
||||
}
|
||||
}
|
||||
|
||||
ASSERT_TRUE(
|
||||
encoder.EncodeKeyframeAnimation(keyframe_animation_, options, &buffer)
|
||||
.ok());
|
||||
|
||||
draco::DecoderBuffer dec_decoder;
|
||||
draco::KeyframeAnimationDecoder decoder;
|
||||
DecoderBuffer dec_buffer;
|
||||
dec_buffer.Init(buffer.data(), buffer.size());
|
||||
|
||||
// Decode animation class.
|
||||
std::unique_ptr<KeyframeAnimation> decoded_animation(
|
||||
new KeyframeAnimation());
|
||||
DecoderOptions dec_options;
|
||||
ASSERT_TRUE(
|
||||
decoder.Decode(dec_options, &dec_buffer, decoded_animation.get()).ok());
|
||||
|
||||
// Verify if animation before and after compression is identical.
|
||||
CompareAnimationData<num_components_t>(keyframe_animation_,
|
||||
*decoded_animation, quantized);
|
||||
}
|
||||
|
||||
draco::KeyframeAnimation keyframe_animation_;
|
||||
std::vector<draco::KeyframeAnimation::TimestampType> timestamps_;
|
||||
std::vector<float> animation_data_;
|
||||
};
|
||||
|
||||
TEST_F(KeyframeAnimationEncodingTest, OneComponent) {
|
||||
const int num_frames = 1;
|
||||
ASSERT_TRUE(CreateAndAddTimestamps(num_frames));
|
||||
ASSERT_EQ(CreateAndAddAnimationData(num_frames, 1), 1);
|
||||
TestKeyframeAnimationEncoding<1>();
|
||||
}
|
||||
|
||||
TEST_F(KeyframeAnimationEncodingTest, ManyComponents) {
|
||||
const int num_frames = 100;
|
||||
ASSERT_TRUE(CreateAndAddTimestamps(num_frames));
|
||||
ASSERT_EQ(CreateAndAddAnimationData(num_frames, 100), 1);
|
||||
TestKeyframeAnimationEncoding<100>();
|
||||
}
|
||||
|
||||
TEST_F(KeyframeAnimationEncodingTest, ManyComponentsWithQuantization) {
|
||||
const int num_frames = 100;
|
||||
ASSERT_TRUE(CreateAndAddTimestamps(num_frames));
|
||||
ASSERT_EQ(CreateAndAddAnimationData(num_frames, 4), 1);
|
||||
// Test compression with quantization.
|
||||
TestKeyframeAnimationEncoding<4>(true);
|
||||
}
|
||||
|
||||
TEST_F(KeyframeAnimationEncodingTest, MultipleAnimations) {
|
||||
const int num_frames = 5;
|
||||
ASSERT_TRUE(CreateAndAddTimestamps(num_frames));
|
||||
ASSERT_EQ(CreateAndAddAnimationData(num_frames, 3), 1);
|
||||
ASSERT_EQ(CreateAndAddAnimationData(num_frames, 3), 2);
|
||||
TestKeyframeAnimationEncoding<3>();
|
||||
}
|
||||
|
||||
} // namespace draco
|
||||
|
|
@ -0,0 +1,102 @@
|
|||
// Copyright 2017 The Draco Authors.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
//
|
||||
#include "draco/animation/keyframe_animation.h"
|
||||
|
||||
#include "draco/core/draco_test_base.h"
|
||||
|
||||
namespace {
|
||||
|
||||
class KeyframeAnimationTest : public ::testing::Test {
|
||||
protected:
|
||||
KeyframeAnimationTest() {}
|
||||
|
||||
bool CreateAndAddTimestamps(int32_t num_frames) {
|
||||
timestamps_.resize(num_frames);
|
||||
for (int i = 0; i < timestamps_.size(); ++i)
|
||||
timestamps_[i] = static_cast<draco::KeyframeAnimation::TimestampType>(i);
|
||||
return keyframe_animation_.SetTimestamps(timestamps_);
|
||||
}
|
||||
|
||||
int32_t CreateAndAddAnimationData(int32_t num_frames,
|
||||
uint32_t num_components) {
|
||||
// Create and add animation data with.
|
||||
animation_data_.resize(num_frames * num_components);
|
||||
for (int i = 0; i < animation_data_.size(); ++i)
|
||||
animation_data_[i] = static_cast<float>(i);
|
||||
return keyframe_animation_.AddKeyframes(draco::DT_FLOAT32, num_components,
|
||||
animation_data_);
|
||||
}
|
||||
|
||||
template <int num_components_t>
|
||||
void CompareAnimationData() {
|
||||
// Compare time stamp.
|
||||
const auto timestamp_att = keyframe_animation_.timestamps();
|
||||
for (int i = 0; i < timestamps_.size(); ++i) {
|
||||
std::array<float, 1> att_value;
|
||||
ASSERT_TRUE((timestamp_att->GetValue<float, 1>(
|
||||
draco::AttributeValueIndex(i), &att_value)));
|
||||
ASSERT_FLOAT_EQ(att_value[0], i);
|
||||
}
|
||||
|
||||
// Compare keyframe data.
|
||||
const auto keyframe_att = keyframe_animation_.keyframes(1);
|
||||
for (int i = 0; i < animation_data_.size() / num_components_t; ++i) {
|
||||
std::array<float, num_components_t> att_value;
|
||||
ASSERT_TRUE((keyframe_att->GetValue<float, num_components_t>(
|
||||
draco::AttributeValueIndex(i), &att_value)));
|
||||
for (int j = 0; j < num_components_t; ++j) {
|
||||
ASSERT_FLOAT_EQ(att_value[j], i * num_components_t + j);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
template <int num_components_t>
|
||||
void TestKeyframeAnimation(int32_t num_frames) {
|
||||
ASSERT_TRUE(CreateAndAddTimestamps(num_frames));
|
||||
ASSERT_EQ(CreateAndAddAnimationData(num_frames, num_components_t), 1);
|
||||
CompareAnimationData<num_components_t>();
|
||||
}
|
||||
|
||||
draco::KeyframeAnimation keyframe_animation_;
|
||||
std::vector<draco::KeyframeAnimation::TimestampType> timestamps_;
|
||||
std::vector<float> animation_data_;
|
||||
};
|
||||
|
||||
// Test animation with 1 component and 10 frames.
|
||||
TEST_F(KeyframeAnimationTest, OneComponent) { TestKeyframeAnimation<1>(10); }
|
||||
|
||||
// Test animation with 4 component and 10 frames.
|
||||
TEST_F(KeyframeAnimationTest, FourComponent) { TestKeyframeAnimation<4>(10); }
|
||||
|
||||
// Test adding animation data before timestamp.
|
||||
TEST_F(KeyframeAnimationTest, AddingAnimationFirst) {
|
||||
ASSERT_EQ(CreateAndAddAnimationData(5, 1), 1);
|
||||
ASSERT_TRUE(CreateAndAddTimestamps(5));
|
||||
}
|
||||
|
||||
// Test adding timestamp more than once.
|
||||
TEST_F(KeyframeAnimationTest, ErrorAddingTimestampsTwice) {
|
||||
ASSERT_TRUE(CreateAndAddTimestamps(5));
|
||||
ASSERT_FALSE(CreateAndAddTimestamps(5));
|
||||
}
|
||||
// Test animation with multiple animation data.
|
||||
TEST_F(KeyframeAnimationTest, MultipleAnimationData) {
|
||||
const int num_frames = 5;
|
||||
ASSERT_TRUE(CreateAndAddTimestamps(num_frames));
|
||||
ASSERT_EQ(CreateAndAddAnimationData(num_frames, 1), 1);
|
||||
ASSERT_EQ(CreateAndAddAnimationData(num_frames, 2), 2);
|
||||
}
|
||||
|
||||
} // namespace
|
||||
|
|
@ -0,0 +1,145 @@
|
|||
// Copyright 2017 The Draco Authors.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
//
|
||||
|
||||
#include "draco/attributes/attribute_octahedron_transform.h"
|
||||
|
||||
#include "draco/attributes/attribute_transform_type.h"
|
||||
#include "draco/compression/attributes/normal_compression_utils.h"
|
||||
|
||||
namespace draco {
|
||||
|
||||
bool AttributeOctahedronTransform::InitFromAttribute(
|
||||
const PointAttribute &attribute) {
|
||||
const AttributeTransformData *const transform_data =
|
||||
attribute.GetAttributeTransformData();
|
||||
if (!transform_data ||
|
||||
transform_data->transform_type() != ATTRIBUTE_OCTAHEDRON_TRANSFORM) {
|
||||
return false; // Wrong transform type.
|
||||
}
|
||||
quantization_bits_ = transform_data->GetParameterValue<int32_t>(0);
|
||||
return true;
|
||||
}
|
||||
|
||||
void AttributeOctahedronTransform::CopyToAttributeTransformData(
|
||||
AttributeTransformData *out_data) const {
|
||||
out_data->set_transform_type(ATTRIBUTE_OCTAHEDRON_TRANSFORM);
|
||||
out_data->AppendParameterValue(quantization_bits_);
|
||||
}
|
||||
|
||||
bool AttributeOctahedronTransform::TransformAttribute(
|
||||
const PointAttribute &attribute, const std::vector<PointIndex> &point_ids,
|
||||
PointAttribute *target_attribute) {
|
||||
return GeneratePortableAttribute(attribute, point_ids,
|
||||
target_attribute->size(), target_attribute);
|
||||
}
|
||||
|
||||
bool AttributeOctahedronTransform::InverseTransformAttribute(
|
||||
const PointAttribute &attribute, PointAttribute *target_attribute) {
|
||||
if (target_attribute->data_type() != DT_FLOAT32) {
|
||||
return false;
|
||||
}
|
||||
|
||||
const int num_points = target_attribute->size();
|
||||
const int num_components = target_attribute->num_components();
|
||||
if (num_components != 3) {
|
||||
return false;
|
||||
}
|
||||
constexpr int kEntrySize = sizeof(float) * 3;
|
||||
float att_val[3];
|
||||
const int32_t *source_attribute_data = reinterpret_cast<const int32_t *>(
|
||||
attribute.GetAddress(AttributeValueIndex(0)));
|
||||
uint8_t *target_address =
|
||||
target_attribute->GetAddress(AttributeValueIndex(0));
|
||||
OctahedronToolBox octahedron_tool_box;
|
||||
if (!octahedron_tool_box.SetQuantizationBits(quantization_bits_)) {
|
||||
return false;
|
||||
}
|
||||
for (uint32_t i = 0; i < num_points; ++i) {
|
||||
const int32_t s = *source_attribute_data++;
|
||||
const int32_t t = *source_attribute_data++;
|
||||
octahedron_tool_box.QuantizedOctahedralCoordsToUnitVector(s, t, att_val);
|
||||
|
||||
// Store the decoded floating point values into the attribute buffer.
|
||||
std::memcpy(target_address, att_val, kEntrySize);
|
||||
target_address += kEntrySize;
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
void AttributeOctahedronTransform::SetParameters(int quantization_bits) {
|
||||
quantization_bits_ = quantization_bits;
|
||||
}
|
||||
|
||||
bool AttributeOctahedronTransform::EncodeParameters(
|
||||
EncoderBuffer *encoder_buffer) const {
|
||||
if (is_initialized()) {
|
||||
encoder_buffer->Encode(static_cast<uint8_t>(quantization_bits_));
|
||||
return true;
|
||||
}
|
||||
return false;
|
||||
}
|
||||
|
||||
bool AttributeOctahedronTransform::DecodeParameters(
|
||||
const PointAttribute &attribute, DecoderBuffer *decoder_buffer) {
|
||||
uint8_t quantization_bits;
|
||||
if (!decoder_buffer->Decode(&quantization_bits)) {
|
||||
return false;
|
||||
}
|
||||
quantization_bits_ = quantization_bits;
|
||||
return true;
|
||||
}
|
||||
|
||||
bool AttributeOctahedronTransform::GeneratePortableAttribute(
|
||||
const PointAttribute &attribute, const std::vector<PointIndex> &point_ids,
|
||||
int num_points, PointAttribute *target_attribute) const {
|
||||
DRACO_DCHECK(is_initialized());
|
||||
|
||||
// Quantize all values in the order given by point_ids into portable
|
||||
// attribute.
|
||||
int32_t *const portable_attribute_data = reinterpret_cast<int32_t *>(
|
||||
target_attribute->GetAddress(AttributeValueIndex(0)));
|
||||
float att_val[3];
|
||||
int32_t dst_index = 0;
|
||||
OctahedronToolBox converter;
|
||||
if (!converter.SetQuantizationBits(quantization_bits_)) {
|
||||
return false;
|
||||
}
|
||||
if (!point_ids.empty()) {
|
||||
for (uint32_t i = 0; i < point_ids.size(); ++i) {
|
||||
const AttributeValueIndex att_val_id =
|
||||
attribute.mapped_index(point_ids[i]);
|
||||
attribute.GetValue(att_val_id, att_val);
|
||||
// Encode the vector into a s and t octahedral coordinates.
|
||||
int32_t s, t;
|
||||
converter.FloatVectorToQuantizedOctahedralCoords(att_val, &s, &t);
|
||||
portable_attribute_data[dst_index++] = s;
|
||||
portable_attribute_data[dst_index++] = t;
|
||||
}
|
||||
} else {
|
||||
for (PointIndex i(0); i < num_points; ++i) {
|
||||
const AttributeValueIndex att_val_id = attribute.mapped_index(i);
|
||||
attribute.GetValue(att_val_id, att_val);
|
||||
// Encode the vector into a s and t octahedral coordinates.
|
||||
int32_t s, t;
|
||||
converter.FloatVectorToQuantizedOctahedralCoords(att_val, &s, &t);
|
||||
portable_attribute_data[dst_index++] = s;
|
||||
portable_attribute_data[dst_index++] = t;
|
||||
}
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
} // namespace draco
|
||||
|
|
@ -0,0 +1,81 @@
|
|||
// Copyright 2017 The Draco Authors.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
//
|
||||
|
||||
#ifndef DRACO_ATTRIBUTES_ATTRIBUTE_OCTAHEDRON_TRANSFORM_H_
|
||||
#define DRACO_ATTRIBUTES_ATTRIBUTE_OCTAHEDRON_TRANSFORM_H_
|
||||
|
||||
#include "draco/attributes/attribute_transform.h"
|
||||
#include "draco/attributes/point_attribute.h"
|
||||
#include "draco/core/encoder_buffer.h"
|
||||
|
||||
namespace draco {
|
||||
|
||||
// Attribute transform for attributes transformed to octahedral coordinates.
|
||||
class AttributeOctahedronTransform : public AttributeTransform {
|
||||
public:
|
||||
AttributeOctahedronTransform() : quantization_bits_(-1) {}
|
||||
|
||||
// Return attribute transform type.
|
||||
AttributeTransformType Type() const override {
|
||||
return ATTRIBUTE_OCTAHEDRON_TRANSFORM;
|
||||
}
|
||||
// Try to init transform from attribute.
|
||||
bool InitFromAttribute(const PointAttribute &attribute) override;
|
||||
// Copy parameter values into the provided AttributeTransformData instance.
|
||||
void CopyToAttributeTransformData(
|
||||
AttributeTransformData *out_data) const override;
|
||||
|
||||
bool TransformAttribute(const PointAttribute &attribute,
|
||||
const std::vector<PointIndex> &point_ids,
|
||||
PointAttribute *target_attribute) override;
|
||||
|
||||
bool InverseTransformAttribute(const PointAttribute &attribute,
|
||||
PointAttribute *target_attribute) override;
|
||||
|
||||
// Set number of quantization bits.
|
||||
void SetParameters(int quantization_bits);
|
||||
|
||||
// Encode relevant parameters into buffer.
|
||||
bool EncodeParameters(EncoderBuffer *encoder_buffer) const override;
|
||||
|
||||
bool DecodeParameters(const PointAttribute &attribute,
|
||||
DecoderBuffer *decoder_buffer) override;
|
||||
|
||||
bool is_initialized() const { return quantization_bits_ != -1; }
|
||||
int32_t quantization_bits() const { return quantization_bits_; }
|
||||
|
||||
protected:
|
||||
DataType GetTransformedDataType(
|
||||
const PointAttribute &attribute) const override {
|
||||
return DT_UINT32;
|
||||
}
|
||||
int GetTransformedNumComponents(
|
||||
const PointAttribute &attribute) const override {
|
||||
return 2;
|
||||
}
|
||||
|
||||
// Perform the actual transformation.
|
||||
bool GeneratePortableAttribute(const PointAttribute &attribute,
|
||||
const std::vector<PointIndex> &point_ids,
|
||||
int num_points,
|
||||
PointAttribute *target_attribute) const;
|
||||
|
||||
private:
|
||||
int32_t quantization_bits_;
|
||||
};
|
||||
|
||||
} // namespace draco
|
||||
|
||||
#endif // DRACO_ATTRIBUTES_ATTRIBUTE_OCTAHEDRON_TRANSFORM_H_
|
||||
|
|
@ -0,0 +1,260 @@
|
|||
// Copyright 2017 The Draco Authors.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
//
|
||||
#include "draco/attributes/attribute_quantization_transform.h"
|
||||
|
||||
#include "draco/attributes/attribute_transform_type.h"
|
||||
#include "draco/core/quantization_utils.h"
|
||||
|
||||
namespace draco {
|
||||
|
||||
bool AttributeQuantizationTransform::InitFromAttribute(
|
||||
const PointAttribute &attribute) {
|
||||
const AttributeTransformData *const transform_data =
|
||||
attribute.GetAttributeTransformData();
|
||||
if (!transform_data ||
|
||||
transform_data->transform_type() != ATTRIBUTE_QUANTIZATION_TRANSFORM) {
|
||||
return false; // Wrong transform type.
|
||||
}
|
||||
int32_t byte_offset = 0;
|
||||
quantization_bits_ = transform_data->GetParameterValue<int32_t>(byte_offset);
|
||||
byte_offset += 4;
|
||||
min_values_.resize(attribute.num_components());
|
||||
for (int i = 0; i < attribute.num_components(); ++i) {
|
||||
min_values_[i] = transform_data->GetParameterValue<float>(byte_offset);
|
||||
byte_offset += 4;
|
||||
}
|
||||
range_ = transform_data->GetParameterValue<float>(byte_offset);
|
||||
return true;
|
||||
}
|
||||
|
||||
// Copy parameter values into the provided AttributeTransformData instance.
|
||||
void AttributeQuantizationTransform::CopyToAttributeTransformData(
|
||||
AttributeTransformData *out_data) const {
|
||||
out_data->set_transform_type(ATTRIBUTE_QUANTIZATION_TRANSFORM);
|
||||
out_data->AppendParameterValue(quantization_bits_);
|
||||
for (int i = 0; i < min_values_.size(); ++i) {
|
||||
out_data->AppendParameterValue(min_values_[i]);
|
||||
}
|
||||
out_data->AppendParameterValue(range_);
|
||||
}
|
||||
|
||||
bool AttributeQuantizationTransform::TransformAttribute(
|
||||
const PointAttribute &attribute, const std::vector<PointIndex> &point_ids,
|
||||
PointAttribute *target_attribute) {
|
||||
if (point_ids.empty()) {
|
||||
GeneratePortableAttribute(attribute, target_attribute->size(),
|
||||
target_attribute);
|
||||
} else {
|
||||
GeneratePortableAttribute(attribute, point_ids, target_attribute->size(),
|
||||
target_attribute);
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
bool AttributeQuantizationTransform::InverseTransformAttribute(
|
||||
const PointAttribute &attribute, PointAttribute *target_attribute) {
|
||||
if (target_attribute->data_type() != DT_FLOAT32) {
|
||||
return false;
|
||||
}
|
||||
|
||||
// Convert all quantized values back to floats.
|
||||
const int32_t max_quantized_value =
|
||||
(1u << static_cast<uint32_t>(quantization_bits_)) - 1;
|
||||
const int num_components = target_attribute->num_components();
|
||||
const int entry_size = sizeof(float) * num_components;
|
||||
const std::unique_ptr<float[]> att_val(new float[num_components]);
|
||||
int quant_val_id = 0;
|
||||
int out_byte_pos = 0;
|
||||
Dequantizer dequantizer;
|
||||
if (!dequantizer.Init(range_, max_quantized_value)) {
|
||||
return false;
|
||||
}
|
||||
const int32_t *const source_attribute_data =
|
||||
reinterpret_cast<const int32_t *>(
|
||||
attribute.GetAddress(AttributeValueIndex(0)));
|
||||
|
||||
const int num_values = target_attribute->size();
|
||||
|
||||
for (uint32_t i = 0; i < num_values; ++i) {
|
||||
for (int c = 0; c < num_components; ++c) {
|
||||
float value =
|
||||
dequantizer.DequantizeFloat(source_attribute_data[quant_val_id++]);
|
||||
value = value + min_values_[c];
|
||||
att_val[c] = value;
|
||||
}
|
||||
// Store the floating point value into the attribute buffer.
|
||||
target_attribute->buffer()->Write(out_byte_pos, att_val.get(), entry_size);
|
||||
out_byte_pos += entry_size;
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
bool AttributeQuantizationTransform::IsQuantizationValid(
|
||||
int quantization_bits) {
|
||||
// Currently we allow only up to 30 bit quantization.
|
||||
return quantization_bits >= 1 && quantization_bits <= 30;
|
||||
}
|
||||
|
||||
bool AttributeQuantizationTransform::SetParameters(int quantization_bits,
|
||||
const float *min_values,
|
||||
int num_components,
|
||||
float range) {
|
||||
if (!IsQuantizationValid(quantization_bits)) {
|
||||
return false;
|
||||
}
|
||||
quantization_bits_ = quantization_bits;
|
||||
min_values_.assign(min_values, min_values + num_components);
|
||||
range_ = range;
|
||||
return true;
|
||||
}
|
||||
|
||||
bool AttributeQuantizationTransform::ComputeParameters(
|
||||
const PointAttribute &attribute, const int quantization_bits) {
|
||||
if (quantization_bits_ != -1) {
|
||||
return false; // already initialized.
|
||||
}
|
||||
if (!IsQuantizationValid(quantization_bits)) {
|
||||
return false;
|
||||
}
|
||||
quantization_bits_ = quantization_bits;
|
||||
|
||||
const int num_components = attribute.num_components();
|
||||
range_ = 0.f;
|
||||
min_values_ = std::vector<float>(num_components, 0.f);
|
||||
const std::unique_ptr<float[]> max_values(new float[num_components]);
|
||||
const std::unique_ptr<float[]> att_val(new float[num_components]);
|
||||
// Compute minimum values and max value difference.
|
||||
attribute.GetValue(AttributeValueIndex(0), att_val.get());
|
||||
attribute.GetValue(AttributeValueIndex(0), min_values_.data());
|
||||
attribute.GetValue(AttributeValueIndex(0), max_values.get());
|
||||
|
||||
for (AttributeValueIndex i(1); i < static_cast<uint32_t>(attribute.size());
|
||||
++i) {
|
||||
attribute.GetValue(i, att_val.get());
|
||||
for (int c = 0; c < num_components; ++c) {
|
||||
if (min_values_[c] > att_val[c]) {
|
||||
min_values_[c] = att_val[c];
|
||||
}
|
||||
if (max_values[c] < att_val[c]) {
|
||||
max_values[c] = att_val[c];
|
||||
}
|
||||
}
|
||||
}
|
||||
for (int c = 0; c < num_components; ++c) {
|
||||
if (std::isnan(min_values_[c]) || std::isinf(min_values_[c]) ||
|
||||
std::isnan(max_values[c]) || std::isinf(max_values[c])) {
|
||||
return false;
|
||||
}
|
||||
const float dif = max_values[c] - min_values_[c];
|
||||
if (dif > range_) {
|
||||
range_ = dif;
|
||||
}
|
||||
}
|
||||
|
||||
// In case all values are the same, initialize the range to unit length. This
|
||||
// will ensure that all values are quantized properly to the same value.
|
||||
if (range_ == 0.f) {
|
||||
range_ = 1.f;
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
bool AttributeQuantizationTransform::EncodeParameters(
|
||||
EncoderBuffer *encoder_buffer) const {
|
||||
if (is_initialized()) {
|
||||
encoder_buffer->Encode(min_values_.data(),
|
||||
sizeof(float) * min_values_.size());
|
||||
encoder_buffer->Encode(range_);
|
||||
encoder_buffer->Encode(static_cast<uint8_t>(quantization_bits_));
|
||||
return true;
|
||||
}
|
||||
return false;
|
||||
}
|
||||
|
||||
bool AttributeQuantizationTransform::DecodeParameters(
|
||||
const PointAttribute &attribute, DecoderBuffer *decoder_buffer) {
|
||||
min_values_.resize(attribute.num_components());
|
||||
if (!decoder_buffer->Decode(&min_values_[0],
|
||||
sizeof(float) * min_values_.size())) {
|
||||
return false;
|
||||
}
|
||||
if (!decoder_buffer->Decode(&range_)) {
|
||||
return false;
|
||||
}
|
||||
uint8_t quantization_bits;
|
||||
if (!decoder_buffer->Decode(&quantization_bits)) {
|
||||
return false;
|
||||
}
|
||||
if (!IsQuantizationValid(quantization_bits)) {
|
||||
return false;
|
||||
}
|
||||
quantization_bits_ = quantization_bits;
|
||||
return true;
|
||||
}
|
||||
|
||||
void AttributeQuantizationTransform::GeneratePortableAttribute(
|
||||
const PointAttribute &attribute, int num_points,
|
||||
PointAttribute *target_attribute) const {
|
||||
DRACO_DCHECK(is_initialized());
|
||||
|
||||
const int num_components = attribute.num_components();
|
||||
|
||||
// Quantize all values using the order given by point_ids.
|
||||
int32_t *const portable_attribute_data = reinterpret_cast<int32_t *>(
|
||||
target_attribute->GetAddress(AttributeValueIndex(0)));
|
||||
const uint32_t max_quantized_value = (1 << (quantization_bits_)) - 1;
|
||||
Quantizer quantizer;
|
||||
quantizer.Init(range(), max_quantized_value);
|
||||
int32_t dst_index = 0;
|
||||
const std::unique_ptr<float[]> att_val(new float[num_components]);
|
||||
for (PointIndex i(0); i < num_points; ++i) {
|
||||
const AttributeValueIndex att_val_id = attribute.mapped_index(i);
|
||||
attribute.GetValue(att_val_id, att_val.get());
|
||||
for (int c = 0; c < num_components; ++c) {
|
||||
const float value = (att_val[c] - min_values()[c]);
|
||||
const int32_t q_val = quantizer.QuantizeFloat(value);
|
||||
portable_attribute_data[dst_index++] = q_val;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void AttributeQuantizationTransform::GeneratePortableAttribute(
|
||||
const PointAttribute &attribute, const std::vector<PointIndex> &point_ids,
|
||||
int num_points, PointAttribute *target_attribute) const {
|
||||
DRACO_DCHECK(is_initialized());
|
||||
|
||||
const int num_components = attribute.num_components();
|
||||
|
||||
// Quantize all values using the order given by point_ids.
|
||||
int32_t *const portable_attribute_data = reinterpret_cast<int32_t *>(
|
||||
target_attribute->GetAddress(AttributeValueIndex(0)));
|
||||
const uint32_t max_quantized_value = (1 << (quantization_bits_)) - 1;
|
||||
Quantizer quantizer;
|
||||
quantizer.Init(range(), max_quantized_value);
|
||||
int32_t dst_index = 0;
|
||||
const std::unique_ptr<float[]> att_val(new float[num_components]);
|
||||
for (uint32_t i = 0; i < point_ids.size(); ++i) {
|
||||
const AttributeValueIndex att_val_id = attribute.mapped_index(point_ids[i]);
|
||||
attribute.GetValue(att_val_id, att_val.get());
|
||||
for (int c = 0; c < num_components; ++c) {
|
||||
const float value = (att_val[c] - min_values()[c]);
|
||||
const int32_t q_val = quantizer.QuantizeFloat(value);
|
||||
portable_attribute_data[dst_index++] = q_val;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
} // namespace draco
|
||||
|
|
@ -0,0 +1,102 @@
|
|||
// Copyright 2017 The Draco Authors.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
//
|
||||
#ifndef DRACO_ATTRIBUTES_ATTRIBUTE_QUANTIZATION_TRANSFORM_H_
|
||||
#define DRACO_ATTRIBUTES_ATTRIBUTE_QUANTIZATION_TRANSFORM_H_
|
||||
|
||||
#include <vector>
|
||||
|
||||
#include "draco/attributes/attribute_transform.h"
|
||||
#include "draco/attributes/point_attribute.h"
|
||||
#include "draco/core/encoder_buffer.h"
|
||||
|
||||
namespace draco {
|
||||
|
||||
// Attribute transform for quantized attributes.
|
||||
class AttributeQuantizationTransform : public AttributeTransform {
|
||||
public:
|
||||
AttributeQuantizationTransform() : quantization_bits_(-1), range_(0.f) {}
|
||||
// Return attribute transform type.
|
||||
AttributeTransformType Type() const override {
|
||||
return ATTRIBUTE_QUANTIZATION_TRANSFORM;
|
||||
}
|
||||
// Try to init transform from attribute.
|
||||
bool InitFromAttribute(const PointAttribute &attribute) override;
|
||||
// Copy parameter values into the provided AttributeTransformData instance.
|
||||
void CopyToAttributeTransformData(
|
||||
AttributeTransformData *out_data) const override;
|
||||
|
||||
bool TransformAttribute(const PointAttribute &attribute,
|
||||
const std::vector<PointIndex> &point_ids,
|
||||
PointAttribute *target_attribute) override;
|
||||
|
||||
bool InverseTransformAttribute(const PointAttribute &attribute,
|
||||
PointAttribute *target_attribute) override;
|
||||
|
||||
bool SetParameters(int quantization_bits, const float *min_values,
|
||||
int num_components, float range);
|
||||
|
||||
bool ComputeParameters(const PointAttribute &attribute,
|
||||
const int quantization_bits);
|
||||
|
||||
// Encode relevant parameters into buffer.
|
||||
bool EncodeParameters(EncoderBuffer *encoder_buffer) const override;
|
||||
|
||||
bool DecodeParameters(const PointAttribute &attribute,
|
||||
DecoderBuffer *decoder_buffer) override;
|
||||
|
||||
int32_t quantization_bits() const { return quantization_bits_; }
|
||||
float min_value(int axis) const { return min_values_[axis]; }
|
||||
const std::vector<float> &min_values() const { return min_values_; }
|
||||
float range() const { return range_; }
|
||||
bool is_initialized() const { return quantization_bits_ != -1; }
|
||||
|
||||
protected:
|
||||
// Create portable attribute using 1:1 mapping between points in the input and
|
||||
// output attribute.
|
||||
void GeneratePortableAttribute(const PointAttribute &attribute,
|
||||
int num_points,
|
||||
PointAttribute *target_attribute) const;
|
||||
|
||||
// Create portable attribute using custom mapping between input and output
|
||||
// points.
|
||||
void GeneratePortableAttribute(const PointAttribute &attribute,
|
||||
const std::vector<PointIndex> &point_ids,
|
||||
int num_points,
|
||||
PointAttribute *target_attribute) const;
|
||||
|
||||
DataType GetTransformedDataType(
|
||||
const PointAttribute &attribute) const override {
|
||||
return DT_UINT32;
|
||||
}
|
||||
int GetTransformedNumComponents(
|
||||
const PointAttribute &attribute) const override {
|
||||
return attribute.num_components();
|
||||
}
|
||||
|
||||
static bool IsQuantizationValid(int quantization_bits);
|
||||
|
||||
private:
|
||||
int32_t quantization_bits_;
|
||||
|
||||
// Minimal dequantized value for each component of the attribute.
|
||||
std::vector<float> min_values_;
|
||||
|
||||
// Bounds of the dequantized attribute (max delta over all components).
|
||||
float range_;
|
||||
};
|
||||
|
||||
} // namespace draco
|
||||
|
||||
#endif // DRACO_COMPRESSION_ATTRIBUTES_ATTRIBUTE_DEQUANTIZATION_TRANSFORM_H_
|
||||
|
|
@ -0,0 +1,40 @@
|
|||
// Copyright 2017 The Draco Authors.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
//
|
||||
#include "draco/attributes/attribute_transform.h"
|
||||
|
||||
namespace draco {
|
||||
|
||||
bool AttributeTransform::TransferToAttribute(PointAttribute *attribute) const {
|
||||
std::unique_ptr<AttributeTransformData> transform_data(
|
||||
new AttributeTransformData());
|
||||
this->CopyToAttributeTransformData(transform_data.get());
|
||||
attribute->SetAttributeTransformData(std::move(transform_data));
|
||||
return true;
|
||||
}
|
||||
|
||||
std::unique_ptr<PointAttribute> AttributeTransform::InitTransformedAttribute(
|
||||
const PointAttribute &src_attribute, int num_entries) {
|
||||
const int num_components = GetTransformedNumComponents(src_attribute);
|
||||
const DataType dt = GetTransformedDataType(src_attribute);
|
||||
GeometryAttribute va;
|
||||
va.Init(src_attribute.attribute_type(), nullptr, num_components, dt, false,
|
||||
num_components * DataTypeLength(dt), 0);
|
||||
std::unique_ptr<PointAttribute> transformed_attribute(new PointAttribute(va));
|
||||
transformed_attribute->Reset(num_entries);
|
||||
transformed_attribute->SetIdentityMapping();
|
||||
return transformed_attribute;
|
||||
}
|
||||
|
||||
} // namespace draco
|
||||
|
|
@ -0,0 +1,76 @@
|
|||
// Copyright 2017 The Draco Authors.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
//
|
||||
#ifndef DRACO_ATTRIBUTES_ATTRIBUTE_TRANSFORM_H_
|
||||
#define DRACO_ATTRIBUTES_ATTRIBUTE_TRANSFORM_H_
|
||||
|
||||
#include "draco/attributes/attribute_transform_data.h"
|
||||
#include "draco/attributes/point_attribute.h"
|
||||
#include "draco/core/decoder_buffer.h"
|
||||
#include "draco/core/encoder_buffer.h"
|
||||
|
||||
namespace draco {
|
||||
|
||||
// Virtual base class for various attribute transforms, enforcing common
|
||||
// interface where possible.
|
||||
class AttributeTransform {
|
||||
public:
|
||||
virtual ~AttributeTransform() = default;
|
||||
|
||||
// Return attribute transform type.
|
||||
virtual AttributeTransformType Type() const = 0;
|
||||
// Try to init transform from attribute.
|
||||
virtual bool InitFromAttribute(const PointAttribute &attribute) = 0;
|
||||
// Copy parameter values into the provided AttributeTransformData instance.
|
||||
virtual void CopyToAttributeTransformData(
|
||||
AttributeTransformData *out_data) const = 0;
|
||||
bool TransferToAttribute(PointAttribute *attribute) const;
|
||||
|
||||
// Applies the transform to |attribute| and stores the result in
|
||||
// |target_attribute|. |point_ids| is an optional vector that can be used to
|
||||
// remap values during the transform.
|
||||
virtual bool TransformAttribute(const PointAttribute &attribute,
|
||||
const std::vector<PointIndex> &point_ids,
|
||||
PointAttribute *target_attribute) = 0;
|
||||
|
||||
// Applies an inverse transform to |attribute| and stores the result in
|
||||
// |target_attribute|. In this case, |attribute| is an attribute that was
|
||||
// already transformed (e.g. quantized) and |target_attribute| is the
|
||||
// attribute before the transformation.
|
||||
virtual bool InverseTransformAttribute(const PointAttribute &attribute,
|
||||
PointAttribute *target_attribute) = 0;
|
||||
|
||||
// Encodes all data needed by the transformation into the |encoder_buffer|.
|
||||
virtual bool EncodeParameters(EncoderBuffer *encoder_buffer) const = 0;
|
||||
|
||||
// Decodes all data needed to transform |attribute| back to the original
|
||||
// format.
|
||||
virtual bool DecodeParameters(const PointAttribute &attribute,
|
||||
DecoderBuffer *decoder_buffer) = 0;
|
||||
|
||||
// Initializes a transformed attribute that can be used as target in the
|
||||
// TransformAttribute() function call.
|
||||
virtual std::unique_ptr<PointAttribute> InitTransformedAttribute(
|
||||
const PointAttribute &src_attribute, int num_entries);
|
||||
|
||||
protected:
|
||||
virtual DataType GetTransformedDataType(
|
||||
const PointAttribute &attribute) const = 0;
|
||||
virtual int GetTransformedNumComponents(
|
||||
const PointAttribute &attribute) const = 0;
|
||||
};
|
||||
|
||||
} // namespace draco
|
||||
|
||||
#endif // DRACO_ATTRIBUTES_ATTRIBUTE_OCTAHEDRON_TRANSFORM_H_
|
||||
|
|
@ -0,0 +1,71 @@
|
|||
// Copyright 2017 The Draco Authors.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
//
|
||||
#ifndef DRACO_ATTRIBUTES_ATTRIBUTE_TRANSFORM_DATA_H_
|
||||
#define DRACO_ATTRIBUTES_ATTRIBUTE_TRANSFORM_DATA_H_
|
||||
|
||||
#include <memory>
|
||||
|
||||
#include "draco/attributes/attribute_transform_type.h"
|
||||
#include "draco/core/data_buffer.h"
|
||||
|
||||
namespace draco {
|
||||
|
||||
// Class for holding parameter values for an attribute transform of a
|
||||
// PointAttribute. This can be for example quantization data for an attribute
|
||||
// that holds quantized values. This class provides only a basic storage for
|
||||
// attribute transform parameters and it should be accessed only through wrapper
|
||||
// classes for a specific transform (e.g. AttributeQuantizationTransform).
|
||||
class AttributeTransformData {
|
||||
public:
|
||||
AttributeTransformData() : transform_type_(ATTRIBUTE_INVALID_TRANSFORM) {}
|
||||
AttributeTransformData(const AttributeTransformData &data) = default;
|
||||
|
||||
// Returns the type of the attribute transform that is described by the class.
|
||||
AttributeTransformType transform_type() const { return transform_type_; }
|
||||
void set_transform_type(AttributeTransformType type) {
|
||||
transform_type_ = type;
|
||||
}
|
||||
|
||||
// Returns a parameter value on a given |byte_offset|.
|
||||
template <typename DataTypeT>
|
||||
DataTypeT GetParameterValue(int byte_offset) const {
|
||||
DataTypeT out_data;
|
||||
buffer_.Read(byte_offset, &out_data, sizeof(DataTypeT));
|
||||
return out_data;
|
||||
}
|
||||
|
||||
// Sets a parameter value on a given |byte_offset|.
|
||||
template <typename DataTypeT>
|
||||
void SetParameterValue(int byte_offset, const DataTypeT &in_data) {
|
||||
if (byte_offset + sizeof(DataTypeT) > buffer_.data_size()) {
|
||||
buffer_.Resize(byte_offset + sizeof(DataTypeT));
|
||||
}
|
||||
buffer_.Write(byte_offset, &in_data, sizeof(DataTypeT));
|
||||
}
|
||||
|
||||
// Sets a parameter value at the end of the |buffer_|.
|
||||
template <typename DataTypeT>
|
||||
void AppendParameterValue(const DataTypeT &in_data) {
|
||||
SetParameterValue(static_cast<int>(buffer_.data_size()), in_data);
|
||||
}
|
||||
|
||||
private:
|
||||
AttributeTransformType transform_type_;
|
||||
DataBuffer buffer_;
|
||||
};
|
||||
|
||||
} // namespace draco
|
||||
|
||||
#endif // DRACO_ATTRIBUTES_ATTRIBUTE_TRANSFORM_DATA_H_
|
||||
|
|
@ -0,0 +1,30 @@
|
|||
// Copyright 2017 The Draco Authors.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
//
|
||||
#ifndef DRACO_ATTRIBUTES_ATTRIBUTE_TRANSFORM_TYPE_H_
|
||||
#define DRACO_ATTRIBUTES_ATTRIBUTE_TRANSFORM_TYPE_H_
|
||||
|
||||
namespace draco {
|
||||
|
||||
// List of all currently supported attribute transforms.
|
||||
enum AttributeTransformType {
|
||||
ATTRIBUTE_INVALID_TRANSFORM = -1,
|
||||
ATTRIBUTE_NO_TRANSFORM = 0,
|
||||
ATTRIBUTE_QUANTIZATION_TRANSFORM = 1,
|
||||
ATTRIBUTE_OCTAHEDRON_TRANSFORM = 2,
|
||||
};
|
||||
|
||||
} // namespace draco
|
||||
|
||||
#endif // DRACO_ATTRIBUTES_ATTRIBUTE_TRANSFORM_TYPE_H_
|
||||
|
|
@ -0,0 +1,102 @@
|
|||
// Copyright 2016 The Draco Authors.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
//
|
||||
#include "draco/attributes/geometry_attribute.h"
|
||||
|
||||
namespace draco {
|
||||
|
||||
GeometryAttribute::GeometryAttribute()
|
||||
: buffer_(nullptr),
|
||||
num_components_(1),
|
||||
data_type_(DT_FLOAT32),
|
||||
byte_stride_(0),
|
||||
byte_offset_(0),
|
||||
attribute_type_(INVALID),
|
||||
unique_id_(0) {}
|
||||
|
||||
void GeometryAttribute::Init(GeometryAttribute::Type attribute_type,
|
||||
DataBuffer *buffer, int8_t num_components,
|
||||
DataType data_type, bool normalized,
|
||||
int64_t byte_stride, int64_t byte_offset) {
|
||||
buffer_ = buffer;
|
||||
if (buffer) {
|
||||
buffer_descriptor_.buffer_id = buffer->buffer_id();
|
||||
buffer_descriptor_.buffer_update_count = buffer->update_count();
|
||||
}
|
||||
num_components_ = num_components;
|
||||
data_type_ = data_type;
|
||||
normalized_ = normalized;
|
||||
byte_stride_ = byte_stride;
|
||||
byte_offset_ = byte_offset;
|
||||
attribute_type_ = attribute_type;
|
||||
}
|
||||
|
||||
bool GeometryAttribute::CopyFrom(const GeometryAttribute &src_att) {
|
||||
num_components_ = src_att.num_components_;
|
||||
data_type_ = src_att.data_type_;
|
||||
normalized_ = src_att.normalized_;
|
||||
byte_stride_ = src_att.byte_stride_;
|
||||
byte_offset_ = src_att.byte_offset_;
|
||||
attribute_type_ = src_att.attribute_type_;
|
||||
buffer_descriptor_ = src_att.buffer_descriptor_;
|
||||
unique_id_ = src_att.unique_id_;
|
||||
if (src_att.buffer_ == nullptr) {
|
||||
buffer_ = nullptr;
|
||||
} else {
|
||||
if (buffer_ == nullptr) {
|
||||
return false;
|
||||
}
|
||||
buffer_->Update(src_att.buffer_->data(), src_att.buffer_->data_size());
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
bool GeometryAttribute::operator==(const GeometryAttribute &va) const {
|
||||
if (attribute_type_ != va.attribute_type_) {
|
||||
return false;
|
||||
}
|
||||
// It's OK to compare just the buffer descriptors here. We don't need to
|
||||
// compare the buffers themselves.
|
||||
if (buffer_descriptor_.buffer_id != va.buffer_descriptor_.buffer_id) {
|
||||
return false;
|
||||
}
|
||||
if (buffer_descriptor_.buffer_update_count !=
|
||||
va.buffer_descriptor_.buffer_update_count) {
|
||||
return false;
|
||||
}
|
||||
if (num_components_ != va.num_components_) {
|
||||
return false;
|
||||
}
|
||||
if (data_type_ != va.data_type_) {
|
||||
return false;
|
||||
}
|
||||
if (byte_stride_ != va.byte_stride_) {
|
||||
return false;
|
||||
}
|
||||
if (byte_offset_ != va.byte_offset_) {
|
||||
return false;
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
void GeometryAttribute::ResetBuffer(DataBuffer *buffer, int64_t byte_stride,
|
||||
int64_t byte_offset) {
|
||||
buffer_ = buffer;
|
||||
buffer_descriptor_.buffer_id = buffer->buffer_id();
|
||||
buffer_descriptor_.buffer_update_count = buffer->update_count();
|
||||
byte_stride_ = byte_stride;
|
||||
byte_offset_ = byte_offset;
|
||||
}
|
||||
|
||||
} // namespace draco
|
||||
|
|
@ -0,0 +1,350 @@
|
|||
// Copyright 2016 The Draco Authors.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
//
|
||||
#ifndef DRACO_ATTRIBUTES_GEOMETRY_ATTRIBUTE_H_
|
||||
#define DRACO_ATTRIBUTES_GEOMETRY_ATTRIBUTE_H_
|
||||
|
||||
#include <array>
|
||||
#include <limits>
|
||||
|
||||
#include "draco/attributes/geometry_indices.h"
|
||||
#include "draco/core/data_buffer.h"
|
||||
#include "draco/core/hash_utils.h"
|
||||
|
||||
namespace draco {
|
||||
|
||||
// The class provides access to a specific attribute which is stored in a
|
||||
// DataBuffer, such as normals or coordinates. However, the GeometryAttribute
|
||||
// class does not own the buffer and the buffer itself may store other data
|
||||
// unrelated to this attribute (such as data for other attributes in which case
|
||||
// we can have multiple GeometryAttributes accessing one buffer). Typically,
|
||||
// all attributes for a point (or corner, face) are stored in one block, which
|
||||
// is advantageous in terms of memory access. The length of the entire block is
|
||||
// given by the byte_stride, the position where the attribute starts is given by
|
||||
// the byte_offset, the actual number of bytes that the attribute occupies is
|
||||
// given by the data_type and the number of components.
|
||||
class GeometryAttribute {
|
||||
public:
|
||||
// Supported attribute types.
|
||||
enum Type {
|
||||
INVALID = -1,
|
||||
// Named attributes start here. The difference between named and generic
|
||||
// attributes is that for named attributes we know their purpose and we
|
||||
// can apply some special methods when dealing with them (e.g. during
|
||||
// encoding).
|
||||
POSITION = 0,
|
||||
NORMAL,
|
||||
COLOR,
|
||||
TEX_COORD,
|
||||
// A special id used to mark attributes that are not assigned to any known
|
||||
// predefined use case. Such attributes are often used for a shader specific
|
||||
// data.
|
||||
GENERIC,
|
||||
// Total number of different attribute types.
|
||||
// Always keep behind all named attributes.
|
||||
NAMED_ATTRIBUTES_COUNT,
|
||||
};
|
||||
|
||||
GeometryAttribute();
|
||||
// Initializes and enables the attribute.
|
||||
void Init(Type attribute_type, DataBuffer *buffer, int8_t num_components,
|
||||
DataType data_type, bool normalized, int64_t byte_stride,
|
||||
int64_t byte_offset);
|
||||
bool IsValid() const { return buffer_ != nullptr; }
|
||||
|
||||
// Copies data from the source attribute to the this attribute.
|
||||
// This attribute must have a valid buffer allocated otherwise the operation
|
||||
// is going to fail and return false.
|
||||
bool CopyFrom(const GeometryAttribute &src_att);
|
||||
|
||||
// Function for getting a attribute value with a specific format.
|
||||
// Unsafe. Caller must ensure the accessed memory is valid.
|
||||
// T is the attribute data type.
|
||||
// att_components_t is the number of attribute components.
|
||||
template <typename T, int att_components_t>
|
||||
std::array<T, att_components_t> GetValue(
|
||||
AttributeValueIndex att_index) const {
|
||||
// Byte address of the attribute index.
|
||||
const int64_t byte_pos = byte_offset_ + byte_stride_ * att_index.value();
|
||||
std::array<T, att_components_t> out;
|
||||
buffer_->Read(byte_pos, &(out[0]), sizeof(out));
|
||||
return out;
|
||||
}
|
||||
|
||||
// Function for getting a attribute value with a specific format.
|
||||
// T is the attribute data type.
|
||||
// att_components_t is the number of attribute components.
|
||||
template <typename T, int att_components_t>
|
||||
bool GetValue(AttributeValueIndex att_index,
|
||||
std::array<T, att_components_t> *out) const {
|
||||
// Byte address of the attribute index.
|
||||
const int64_t byte_pos = byte_offset_ + byte_stride_ * att_index.value();
|
||||
// Check we are not reading past end of data.
|
||||
if (byte_pos + sizeof(*out) > buffer_->data_size()) {
|
||||
return false;
|
||||
}
|
||||
buffer_->Read(byte_pos, &((*out)[0]), sizeof(*out));
|
||||
return true;
|
||||
}
|
||||
|
||||
// Returns the byte position of the attribute entry in the data buffer.
|
||||
inline int64_t GetBytePos(AttributeValueIndex att_index) const {
|
||||
return byte_offset_ + byte_stride_ * att_index.value();
|
||||
}
|
||||
|
||||
inline const uint8_t *GetAddress(AttributeValueIndex att_index) const {
|
||||
const int64_t byte_pos = GetBytePos(att_index);
|
||||
return buffer_->data() + byte_pos;
|
||||
}
|
||||
inline uint8_t *GetAddress(AttributeValueIndex att_index) {
|
||||
const int64_t byte_pos = GetBytePos(att_index);
|
||||
return buffer_->data() + byte_pos;
|
||||
}
|
||||
inline bool IsAddressValid(const uint8_t *address) const {
|
||||
return ((buffer_->data() + buffer_->data_size()) > address);
|
||||
}
|
||||
|
||||
// Fills out_data with the raw value of the requested attribute entry.
|
||||
// out_data must be at least byte_stride_ long.
|
||||
void GetValue(AttributeValueIndex att_index, void *out_data) const {
|
||||
const int64_t byte_pos = byte_offset_ + byte_stride_ * att_index.value();
|
||||
buffer_->Read(byte_pos, out_data, byte_stride_);
|
||||
}
|
||||
|
||||
// Sets a value of an attribute entry. The input value must be allocated to
|
||||
// cover all components of a single attribute entry.
|
||||
void SetAttributeValue(AttributeValueIndex entry_index, const void *value) {
|
||||
const int64_t byte_pos = entry_index.value() * byte_stride();
|
||||
buffer_->Write(byte_pos, value, byte_stride());
|
||||
}
|
||||
|
||||
// DEPRECATED: Use
|
||||
// ConvertValue(AttributeValueIndex att_id,
|
||||
// int out_num_components,
|
||||
// OutT *out_val);
|
||||
//
|
||||
// Function for conversion of a attribute to a specific output format.
|
||||
// OutT is the desired data type of the attribute.
|
||||
// out_att_components_t is the number of components of the output format.
|
||||
// Returns false when the conversion failed.
|
||||
template <typename OutT, int out_att_components_t>
|
||||
bool ConvertValue(AttributeValueIndex att_id, OutT *out_val) const {
|
||||
return ConvertValue(att_id, out_att_components_t, out_val);
|
||||
}
|
||||
|
||||
// Function for conversion of a attribute to a specific output format.
|
||||
// |out_val| needs to be able to store |out_num_components| values.
|
||||
// OutT is the desired data type of the attribute.
|
||||
// Returns false when the conversion failed.
|
||||
template <typename OutT>
|
||||
bool ConvertValue(AttributeValueIndex att_id, int8_t out_num_components,
|
||||
OutT *out_val) const {
|
||||
if (out_val == nullptr) {
|
||||
return false;
|
||||
}
|
||||
switch (data_type_) {
|
||||
case DT_INT8:
|
||||
return ConvertTypedValue<int8_t, OutT>(att_id, out_num_components,
|
||||
out_val);
|
||||
case DT_UINT8:
|
||||
return ConvertTypedValue<uint8_t, OutT>(att_id, out_num_components,
|
||||
out_val);
|
||||
case DT_INT16:
|
||||
return ConvertTypedValue<int16_t, OutT>(att_id, out_num_components,
|
||||
out_val);
|
||||
case DT_UINT16:
|
||||
return ConvertTypedValue<uint16_t, OutT>(att_id, out_num_components,
|
||||
out_val);
|
||||
case DT_INT32:
|
||||
return ConvertTypedValue<int32_t, OutT>(att_id, out_num_components,
|
||||
out_val);
|
||||
case DT_UINT32:
|
||||
return ConvertTypedValue<uint32_t, OutT>(att_id, out_num_components,
|
||||
out_val);
|
||||
case DT_INT64:
|
||||
return ConvertTypedValue<int64_t, OutT>(att_id, out_num_components,
|
||||
out_val);
|
||||
case DT_UINT64:
|
||||
return ConvertTypedValue<uint64_t, OutT>(att_id, out_num_components,
|
||||
out_val);
|
||||
case DT_FLOAT32:
|
||||
return ConvertTypedValue<float, OutT>(att_id, out_num_components,
|
||||
out_val);
|
||||
case DT_FLOAT64:
|
||||
return ConvertTypedValue<double, OutT>(att_id, out_num_components,
|
||||
out_val);
|
||||
case DT_BOOL:
|
||||
return ConvertTypedValue<bool, OutT>(att_id, out_num_components,
|
||||
out_val);
|
||||
default:
|
||||
// Wrong attribute type.
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
// Function for conversion of a attribute to a specific output format.
|
||||
// The |out_value| must be able to store all components of a single attribute
|
||||
// entry.
|
||||
// OutT is the desired data type of the attribute.
|
||||
// Returns false when the conversion failed.
|
||||
template <typename OutT>
|
||||
bool ConvertValue(AttributeValueIndex att_index, OutT *out_value) const {
|
||||
return ConvertValue<OutT>(att_index, num_components_, out_value);
|
||||
}
|
||||
|
||||
// Utility function. Returns |attribute_type| as std::string.
|
||||
static std::string TypeToString(Type attribute_type) {
|
||||
switch (attribute_type) {
|
||||
case INVALID:
|
||||
return "INVALID";
|
||||
case POSITION:
|
||||
return "POSITION";
|
||||
case NORMAL:
|
||||
return "NORMAL";
|
||||
case COLOR:
|
||||
return "COLOR";
|
||||
case TEX_COORD:
|
||||
return "TEX_COORD";
|
||||
case GENERIC:
|
||||
return "GENERIC";
|
||||
default:
|
||||
return "UNKNOWN";
|
||||
}
|
||||
}
|
||||
|
||||
bool operator==(const GeometryAttribute &va) const;
|
||||
|
||||
// Returns the type of the attribute indicating the nature of the attribute.
|
||||
Type attribute_type() const { return attribute_type_; }
|
||||
void set_attribute_type(Type type) { attribute_type_ = type; }
|
||||
// Returns the data type that is stored in the attribute.
|
||||
DataType data_type() const { return data_type_; }
|
||||
// Returns the number of components that are stored for each entry.
|
||||
// For position attribute this is usually three (x,y,z),
|
||||
// while texture coordinates have two components (u,v).
|
||||
int8_t num_components() const { return num_components_; }
|
||||
// Indicates whether the data type should be normalized before interpretation,
|
||||
// that is, it should be divided by the max value of the data type.
|
||||
bool normalized() const { return normalized_; }
|
||||
// The buffer storing the entire data of the attribute.
|
||||
const DataBuffer *buffer() const { return buffer_; }
|
||||
// Returns the number of bytes between two attribute entries, this is, at
|
||||
// least size of the data types times number of components.
|
||||
int64_t byte_stride() const { return byte_stride_; }
|
||||
// The offset where the attribute starts within the block of size byte_stride.
|
||||
int64_t byte_offset() const { return byte_offset_; }
|
||||
void set_byte_offset(int64_t byte_offset) { byte_offset_ = byte_offset; }
|
||||
DataBufferDescriptor buffer_descriptor() const { return buffer_descriptor_; }
|
||||
uint32_t unique_id() const { return unique_id_; }
|
||||
void set_unique_id(uint32_t id) { unique_id_ = id; }
|
||||
|
||||
protected:
|
||||
// Sets a new internal storage for the attribute.
|
||||
void ResetBuffer(DataBuffer *buffer, int64_t byte_stride,
|
||||
int64_t byte_offset);
|
||||
|
||||
private:
|
||||
// Function for conversion of an attribute to a specific output format given a
|
||||
// format of the stored attribute.
|
||||
// T is the stored attribute data type.
|
||||
// OutT is the desired data type of the attribute.
|
||||
template <typename T, typename OutT>
|
||||
bool ConvertTypedValue(AttributeValueIndex att_id, int8_t out_num_components,
|
||||
OutT *out_value) const {
|
||||
const uint8_t *src_address = GetAddress(att_id);
|
||||
|
||||
// Convert all components available in both the original and output formats.
|
||||
for (int i = 0; i < std::min(num_components_, out_num_components); ++i) {
|
||||
if (!IsAddressValid(src_address)) {
|
||||
return false;
|
||||
}
|
||||
const T in_value = *reinterpret_cast<const T *>(src_address);
|
||||
|
||||
// Make sure the in_value fits within the range of values that OutT
|
||||
// is able to represent. Perform the check only for integral types.
|
||||
if (std::is_integral<T>::value && std::is_integral<OutT>::value) {
|
||||
static constexpr OutT kOutMin =
|
||||
std::is_signed<T>::value ? std::numeric_limits<OutT>::lowest() : 0;
|
||||
if (in_value < kOutMin || in_value > std::numeric_limits<OutT>::max()) {
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
out_value[i] = static_cast<OutT>(in_value);
|
||||
// When converting integer to floating point, normalize the value if
|
||||
// necessary.
|
||||
if (std::is_integral<T>::value && std::is_floating_point<OutT>::value &&
|
||||
normalized_) {
|
||||
out_value[i] /= static_cast<OutT>(std::numeric_limits<T>::max());
|
||||
}
|
||||
// TODO(ostava): Add handling of normalized attributes when converting
|
||||
// between different integer representations. If the attribute is
|
||||
// normalized, integer values should be converted as if they represent 0-1
|
||||
// range. E.g. when we convert uint16 to uint8, the range <0, 2^16 - 1>
|
||||
// should be converted to range <0, 2^8 - 1>.
|
||||
src_address += sizeof(T);
|
||||
}
|
||||
// Fill empty data for unused output components if needed.
|
||||
for (int i = num_components_; i < out_num_components; ++i) {
|
||||
out_value[i] = static_cast<OutT>(0);
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
DataBuffer *buffer_;
|
||||
// The buffer descriptor is stored at the time the buffer is attached to this
|
||||
// attribute. The purpose is to detect if any changes happened to the buffer
|
||||
// since the time it was attached.
|
||||
DataBufferDescriptor buffer_descriptor_;
|
||||
int8_t num_components_;
|
||||
DataType data_type_;
|
||||
bool normalized_;
|
||||
int64_t byte_stride_;
|
||||
int64_t byte_offset_;
|
||||
|
||||
Type attribute_type_;
|
||||
|
||||
// Unique id of this attribute. No two attributes could have the same unique
|
||||
// id. It is used to identify each attribute, especially when there are
|
||||
// multiple attribute of the same type in a point cloud.
|
||||
uint32_t unique_id_;
|
||||
|
||||
friend struct GeometryAttributeHasher;
|
||||
};
|
||||
|
||||
// Hashing support
|
||||
|
||||
// Function object for using Attribute as a hash key.
|
||||
struct GeometryAttributeHasher {
|
||||
size_t operator()(const GeometryAttribute &va) const {
|
||||
size_t hash = HashCombine(va.buffer_descriptor_.buffer_id,
|
||||
va.buffer_descriptor_.buffer_update_count);
|
||||
hash = HashCombine(va.num_components_, hash);
|
||||
hash = HashCombine(static_cast<int8_t>(va.data_type_), hash);
|
||||
hash = HashCombine(static_cast<int8_t>(va.attribute_type_), hash);
|
||||
hash = HashCombine(va.byte_stride_, hash);
|
||||
return HashCombine(va.byte_offset_, hash);
|
||||
}
|
||||
};
|
||||
|
||||
// Function object for using GeometryAttribute::Type as a hash key.
|
||||
struct GeometryAttributeTypeHasher {
|
||||
size_t operator()(const GeometryAttribute::Type &at) const {
|
||||
return static_cast<size_t>(at);
|
||||
}
|
||||
};
|
||||
|
||||
} // namespace draco
|
||||
|
||||
#endif // DRACO_ATTRIBUTES_GEOMETRY_ATTRIBUTE_H_
|
||||
|
|
@ -0,0 +1,54 @@
|
|||
// Copyright 2016 The Draco Authors.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
//
|
||||
#ifndef DRACO_ATTRIBUTES_GEOMETRY_INDICES_H_
|
||||
#define DRACO_ATTRIBUTES_GEOMETRY_INDICES_H_
|
||||
|
||||
#include <inttypes.h>
|
||||
|
||||
#include <limits>
|
||||
|
||||
#include "draco/core/draco_index_type.h"
|
||||
|
||||
namespace draco {
|
||||
|
||||
// Index of an attribute value entry stored in a GeometryAttribute.
|
||||
DEFINE_NEW_DRACO_INDEX_TYPE(uint32_t, AttributeValueIndex)
|
||||
// Index of a point in a PointCloud.
|
||||
DEFINE_NEW_DRACO_INDEX_TYPE(uint32_t, PointIndex)
|
||||
// Vertex index in a Mesh or CornerTable.
|
||||
DEFINE_NEW_DRACO_INDEX_TYPE(uint32_t, VertexIndex)
|
||||
// Corner index that identifies a corner in a Mesh or CornerTable.
|
||||
DEFINE_NEW_DRACO_INDEX_TYPE(uint32_t, CornerIndex)
|
||||
// Face index for Mesh and CornerTable.
|
||||
DEFINE_NEW_DRACO_INDEX_TYPE(uint32_t, FaceIndex)
|
||||
|
||||
// Constants denoting invalid indices.
|
||||
static constexpr AttributeValueIndex kInvalidAttributeValueIndex(
|
||||
std::numeric_limits<uint32_t>::max());
|
||||
static constexpr PointIndex kInvalidPointIndex(
|
||||
std::numeric_limits<uint32_t>::max());
|
||||
static constexpr VertexIndex kInvalidVertexIndex(
|
||||
std::numeric_limits<uint32_t>::max());
|
||||
static constexpr CornerIndex kInvalidCornerIndex(
|
||||
std::numeric_limits<uint32_t>::max());
|
||||
static constexpr FaceIndex kInvalidFaceIndex(
|
||||
std::numeric_limits<uint32_t>::max());
|
||||
|
||||
// TODO(ostava): Add strongly typed indices for attribute id and unique
|
||||
// attribute id.
|
||||
|
||||
} // namespace draco
|
||||
|
||||
#endif // DRACO_ATTRIBUTES_GEOMETRY_INDICES_H_
|
||||
|
|
@ -0,0 +1,225 @@
|
|||
// Copyright 2016 The Draco Authors.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
//
|
||||
#include "draco/attributes/point_attribute.h"
|
||||
|
||||
#include <unordered_map>
|
||||
|
||||
using std::unordered_map;
|
||||
|
||||
// Shortcut for typed conditionals.
|
||||
template <bool B, class T, class F>
|
||||
using conditional_t = typename std::conditional<B, T, F>::type;
|
||||
|
||||
namespace draco {
|
||||
|
||||
PointAttribute::PointAttribute()
|
||||
: num_unique_entries_(0), identity_mapping_(false) {}
|
||||
|
||||
PointAttribute::PointAttribute(const GeometryAttribute &att)
|
||||
: GeometryAttribute(att),
|
||||
num_unique_entries_(0),
|
||||
identity_mapping_(false) {}
|
||||
|
||||
void PointAttribute::Init(Type attribute_type, int8_t num_components,
|
||||
DataType data_type, bool normalized,
|
||||
size_t num_attribute_values) {
|
||||
attribute_buffer_ = std::unique_ptr<DataBuffer>(new DataBuffer());
|
||||
GeometryAttribute::Init(attribute_type, attribute_buffer_.get(),
|
||||
num_components, data_type, normalized,
|
||||
DataTypeLength(data_type) * num_components, 0);
|
||||
Reset(num_attribute_values);
|
||||
SetIdentityMapping();
|
||||
}
|
||||
|
||||
void PointAttribute::CopyFrom(const PointAttribute &src_att) {
|
||||
if (buffer() == nullptr) {
|
||||
// If the destination attribute doesn't have a valid buffer, create it.
|
||||
attribute_buffer_ = std::unique_ptr<DataBuffer>(new DataBuffer());
|
||||
ResetBuffer(attribute_buffer_.get(), 0, 0);
|
||||
}
|
||||
if (!GeometryAttribute::CopyFrom(src_att)) {
|
||||
return;
|
||||
}
|
||||
identity_mapping_ = src_att.identity_mapping_;
|
||||
num_unique_entries_ = src_att.num_unique_entries_;
|
||||
indices_map_ = src_att.indices_map_;
|
||||
if (src_att.attribute_transform_data_) {
|
||||
attribute_transform_data_ = std::unique_ptr<AttributeTransformData>(
|
||||
new AttributeTransformData(*src_att.attribute_transform_data_));
|
||||
} else {
|
||||
attribute_transform_data_ = nullptr;
|
||||
}
|
||||
}
|
||||
|
||||
bool PointAttribute::Reset(size_t num_attribute_values) {
|
||||
if (attribute_buffer_ == nullptr) {
|
||||
attribute_buffer_ = std::unique_ptr<DataBuffer>(new DataBuffer());
|
||||
}
|
||||
const int64_t entry_size = DataTypeLength(data_type()) * num_components();
|
||||
if (!attribute_buffer_->Update(nullptr, num_attribute_values * entry_size)) {
|
||||
return false;
|
||||
}
|
||||
// Assign the new buffer to the parent attribute.
|
||||
ResetBuffer(attribute_buffer_.get(), entry_size, 0);
|
||||
num_unique_entries_ = static_cast<uint32_t>(num_attribute_values);
|
||||
return true;
|
||||
}
|
||||
|
||||
void PointAttribute::Resize(size_t new_num_unique_entries) {
|
||||
num_unique_entries_ = static_cast<uint32_t>(new_num_unique_entries);
|
||||
attribute_buffer_->Resize(new_num_unique_entries * byte_stride());
|
||||
}
|
||||
|
||||
#ifdef DRACO_ATTRIBUTE_VALUES_DEDUPLICATION_SUPPORTED
|
||||
AttributeValueIndex::ValueType PointAttribute::DeduplicateValues(
|
||||
const GeometryAttribute &in_att) {
|
||||
return DeduplicateValues(in_att, AttributeValueIndex(0));
|
||||
}
|
||||
|
||||
AttributeValueIndex::ValueType PointAttribute::DeduplicateValues(
|
||||
const GeometryAttribute &in_att, AttributeValueIndex in_att_offset) {
|
||||
AttributeValueIndex::ValueType unique_vals = 0;
|
||||
switch (in_att.data_type()) {
|
||||
// Currently we support only float, uint8, and uint16 arguments.
|
||||
case DT_FLOAT32:
|
||||
unique_vals = DeduplicateTypedValues<float>(in_att, in_att_offset);
|
||||
break;
|
||||
case DT_INT8:
|
||||
unique_vals = DeduplicateTypedValues<int8_t>(in_att, in_att_offset);
|
||||
break;
|
||||
case DT_UINT8:
|
||||
case DT_BOOL:
|
||||
unique_vals = DeduplicateTypedValues<uint8_t>(in_att, in_att_offset);
|
||||
break;
|
||||
case DT_UINT16:
|
||||
unique_vals = DeduplicateTypedValues<uint16_t>(in_att, in_att_offset);
|
||||
break;
|
||||
case DT_INT16:
|
||||
unique_vals = DeduplicateTypedValues<int16_t>(in_att, in_att_offset);
|
||||
break;
|
||||
case DT_UINT32:
|
||||
unique_vals = DeduplicateTypedValues<uint32_t>(in_att, in_att_offset);
|
||||
break;
|
||||
case DT_INT32:
|
||||
unique_vals = DeduplicateTypedValues<int32_t>(in_att, in_att_offset);
|
||||
break;
|
||||
default:
|
||||
return -1; // Unsupported data type.
|
||||
}
|
||||
if (unique_vals == 0) {
|
||||
return -1; // Unexpected error.
|
||||
}
|
||||
return unique_vals;
|
||||
}
|
||||
|
||||
// Helper function for calling UnifyDuplicateAttributes<T,num_components_t>
|
||||
// with the correct template arguments.
|
||||
// Returns the number of unique attribute values.
|
||||
template <typename T>
|
||||
AttributeValueIndex::ValueType PointAttribute::DeduplicateTypedValues(
|
||||
const GeometryAttribute &in_att, AttributeValueIndex in_att_offset) {
|
||||
// Select the correct method to call based on the number of attribute
|
||||
// components.
|
||||
switch (in_att.num_components()) {
|
||||
case 1:
|
||||
return DeduplicateFormattedValues<T, 1>(in_att, in_att_offset);
|
||||
case 2:
|
||||
return DeduplicateFormattedValues<T, 2>(in_att, in_att_offset);
|
||||
case 3:
|
||||
return DeduplicateFormattedValues<T, 3>(in_att, in_att_offset);
|
||||
case 4:
|
||||
return DeduplicateFormattedValues<T, 4>(in_att, in_att_offset);
|
||||
default:
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
|
||||
template <typename T, int num_components_t>
|
||||
AttributeValueIndex::ValueType PointAttribute::DeduplicateFormattedValues(
|
||||
const GeometryAttribute &in_att, AttributeValueIndex in_att_offset) {
|
||||
// We want to detect duplicates using a hash map but we cannot hash floating
|
||||
// point numbers directly so bit-copy floats to the same sized integers and
|
||||
// hash them.
|
||||
|
||||
// First we need to determine which int type to use (1, 2, 4 or 8 bytes).
|
||||
// Note, this is done at compile time using std::conditional struct.
|
||||
// Conditional is in form <bool-expression, true, false>. If bool-expression
|
||||
// is true the "true" branch is used and vice versa. All at compile time.
|
||||
typedef conditional_t<sizeof(T) == 1, uint8_t,
|
||||
conditional_t<sizeof(T) == 2, uint16_t,
|
||||
conditional_t<sizeof(T) == 4, uint32_t,
|
||||
/*else*/ uint64_t>>>
|
||||
HashType;
|
||||
|
||||
AttributeValueIndex unique_vals(0);
|
||||
typedef std::array<T, num_components_t> AttributeValue;
|
||||
typedef std::array<HashType, num_components_t> AttributeHashableValue;
|
||||
// Hash map storing index of the first attribute with a given value.
|
||||
unordered_map<AttributeHashableValue, AttributeValueIndex,
|
||||
HashArray<AttributeHashableValue>>
|
||||
value_to_index_map;
|
||||
AttributeValue att_value;
|
||||
AttributeHashableValue hashable_value;
|
||||
IndexTypeVector<AttributeValueIndex, AttributeValueIndex> value_map(
|
||||
num_unique_entries_);
|
||||
for (AttributeValueIndex i(0); i < num_unique_entries_; ++i) {
|
||||
const AttributeValueIndex att_pos = i + in_att_offset;
|
||||
att_value = in_att.GetValue<T, num_components_t>(att_pos);
|
||||
// Convert the value to hashable type. Bit-copy real attributes to integers.
|
||||
memcpy(&(hashable_value[0]), &(att_value[0]), sizeof(att_value));
|
||||
|
||||
// Check if the given attribute value has been used before already.
|
||||
auto it = value_to_index_map.find(hashable_value);
|
||||
if (it != value_to_index_map.end()) {
|
||||
// Duplicated value found. Update index mapping.
|
||||
value_map[i] = it->second;
|
||||
} else {
|
||||
// New unique value.
|
||||
// Update the hash map with a new entry pointing to the latest unique
|
||||
// vertex index.
|
||||
value_to_index_map.insert(
|
||||
std::pair<AttributeHashableValue, AttributeValueIndex>(hashable_value,
|
||||
unique_vals));
|
||||
// Add the unique value to the mesh builder.
|
||||
SetAttributeValue(unique_vals, &att_value);
|
||||
// Update index mapping.
|
||||
value_map[i] = unique_vals;
|
||||
|
||||
++unique_vals;
|
||||
}
|
||||
}
|
||||
if (unique_vals == num_unique_entries_) {
|
||||
return unique_vals.value(); // Nothing has changed.
|
||||
}
|
||||
if (is_mapping_identity()) {
|
||||
// Change identity mapping to the explicit one.
|
||||
// The number of points is equal to the number of old unique values.
|
||||
SetExplicitMapping(num_unique_entries_);
|
||||
// Update the explicit map.
|
||||
for (uint32_t i = 0; i < num_unique_entries_; ++i) {
|
||||
SetPointMapEntry(PointIndex(i), value_map[AttributeValueIndex(i)]);
|
||||
}
|
||||
} else {
|
||||
// Update point to value map using the mapping between old and new values.
|
||||
for (PointIndex i(0); i < static_cast<uint32_t>(indices_map_.size()); ++i) {
|
||||
SetPointMapEntry(i, value_map[indices_map_[i]]);
|
||||
}
|
||||
}
|
||||
num_unique_entries_ = unique_vals.value();
|
||||
return num_unique_entries_;
|
||||
}
|
||||
#endif
|
||||
|
||||
} // namespace draco
|
||||
|
|
@ -0,0 +1,190 @@
|
|||
// Copyright 2016 The Draco Authors.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
//
|
||||
#ifndef DRACO_ATTRIBUTES_POINT_ATTRIBUTE_H_
|
||||
#define DRACO_ATTRIBUTES_POINT_ATTRIBUTE_H_
|
||||
|
||||
#include <memory>
|
||||
|
||||
#include "draco/attributes/attribute_transform_data.h"
|
||||
#include "draco/attributes/geometry_attribute.h"
|
||||
#include "draco/core/draco_index_type_vector.h"
|
||||
#include "draco/core/hash_utils.h"
|
||||
#include "draco/core/macros.h"
|
||||
#include "draco/draco_features.h"
|
||||
|
||||
namespace draco {
|
||||
|
||||
// Class for storing point specific data about each attribute. In general,
|
||||
// multiple points stored in a point cloud can share the same attribute value
|
||||
// and this class provides the necessary mapping between point ids and attribute
|
||||
// value ids.
|
||||
class PointAttribute : public GeometryAttribute {
|
||||
public:
|
||||
PointAttribute();
|
||||
explicit PointAttribute(const GeometryAttribute &att);
|
||||
|
||||
// Make sure the move constructor is defined (needed for better performance
|
||||
// when new attributes are added to PointCloud).
|
||||
PointAttribute(PointAttribute &&attribute) = default;
|
||||
PointAttribute &operator=(PointAttribute &&attribute) = default;
|
||||
|
||||
// Initializes a point attribute. By default the attribute will be set to
|
||||
// identity mapping between point indices and attribute values. To set custom
|
||||
// mapping use SetExplicitMapping() function.
|
||||
void Init(Type attribute_type, int8_t num_components, DataType data_type,
|
||||
bool normalized, size_t num_attribute_values);
|
||||
|
||||
// Copies attribute data from the provided |src_att| attribute.
|
||||
void CopyFrom(const PointAttribute &src_att);
|
||||
|
||||
// Prepares the attribute storage for the specified number of entries.
|
||||
bool Reset(size_t num_attribute_values);
|
||||
|
||||
size_t size() const { return num_unique_entries_; }
|
||||
AttributeValueIndex mapped_index(PointIndex point_index) const {
|
||||
if (identity_mapping_) {
|
||||
return AttributeValueIndex(point_index.value());
|
||||
}
|
||||
return indices_map_[point_index];
|
||||
}
|
||||
DataBuffer *buffer() const { return attribute_buffer_.get(); }
|
||||
bool is_mapping_identity() const { return identity_mapping_; }
|
||||
size_t indices_map_size() const {
|
||||
if (is_mapping_identity()) {
|
||||
return 0;
|
||||
}
|
||||
return indices_map_.size();
|
||||
}
|
||||
|
||||
const uint8_t *GetAddressOfMappedIndex(PointIndex point_index) const {
|
||||
return GetAddress(mapped_index(point_index));
|
||||
}
|
||||
|
||||
// Sets the new number of unique attribute entries for the attribute. The
|
||||
// function resizes the attribute storage to hold |num_attribute_values|
|
||||
// entries.
|
||||
// All previous entries with AttributeValueIndex < |num_attribute_values|
|
||||
// are preserved. Caller needs to ensure that the PointAttribute is still
|
||||
// valid after the resizing operation (that is, each point is mapped to a
|
||||
// valid attribute value).
|
||||
void Resize(size_t new_num_unique_entries);
|
||||
|
||||
// Functions for setting the type of mapping between point indices and
|
||||
// attribute entry ids.
|
||||
// This function sets the mapping to implicit, where point indices are equal
|
||||
// to attribute entry indices.
|
||||
void SetIdentityMapping() {
|
||||
identity_mapping_ = true;
|
||||
indices_map_.clear();
|
||||
}
|
||||
// This function sets the mapping to be explicitly using the indices_map_
|
||||
// array that needs to be initialized by the caller.
|
||||
void SetExplicitMapping(size_t num_points) {
|
||||
identity_mapping_ = false;
|
||||
indices_map_.resize(num_points, kInvalidAttributeValueIndex);
|
||||
}
|
||||
|
||||
// Set an explicit map entry for a specific point index.
|
||||
void SetPointMapEntry(PointIndex point_index,
|
||||
AttributeValueIndex entry_index) {
|
||||
DRACO_DCHECK(!identity_mapping_);
|
||||
indices_map_[point_index] = entry_index;
|
||||
}
|
||||
|
||||
// Same as GeometryAttribute::GetValue(), but using point id as the input.
|
||||
// Mapping to attribute value index is performed automatically.
|
||||
void GetMappedValue(PointIndex point_index, void *out_data) const {
|
||||
return GetValue(mapped_index(point_index), out_data);
|
||||
}
|
||||
|
||||
#ifdef DRACO_ATTRIBUTE_VALUES_DEDUPLICATION_SUPPORTED
|
||||
// Deduplicate |in_att| values into |this| attribute. |in_att| can be equal
|
||||
// to |this|.
|
||||
// Returns -1 if the deduplication failed.
|
||||
AttributeValueIndex::ValueType DeduplicateValues(
|
||||
const GeometryAttribute &in_att);
|
||||
|
||||
// Same as above but the values read from |in_att| are sampled with the
|
||||
// provided offset |in_att_offset|.
|
||||
AttributeValueIndex::ValueType DeduplicateValues(
|
||||
const GeometryAttribute &in_att, AttributeValueIndex in_att_offset);
|
||||
#endif
|
||||
|
||||
// Set attribute transform data for the attribute. The data is used to store
|
||||
// the type and parameters of the transform that is applied on the attribute
|
||||
// data (optional).
|
||||
void SetAttributeTransformData(
|
||||
std::unique_ptr<AttributeTransformData> transform_data) {
|
||||
attribute_transform_data_ = std::move(transform_data);
|
||||
}
|
||||
const AttributeTransformData *GetAttributeTransformData() const {
|
||||
return attribute_transform_data_.get();
|
||||
}
|
||||
|
||||
private:
|
||||
#ifdef DRACO_ATTRIBUTE_VALUES_DEDUPLICATION_SUPPORTED
|
||||
template <typename T>
|
||||
AttributeValueIndex::ValueType DeduplicateTypedValues(
|
||||
const GeometryAttribute &in_att, AttributeValueIndex in_att_offset);
|
||||
template <typename T, int COMPONENTS_COUNT>
|
||||
AttributeValueIndex::ValueType DeduplicateFormattedValues(
|
||||
const GeometryAttribute &in_att, AttributeValueIndex in_att_offset);
|
||||
#endif
|
||||
|
||||
// Data storage for attribute values. GeometryAttribute itself doesn't own its
|
||||
// buffer so we need to allocate it here.
|
||||
std::unique_ptr<DataBuffer> attribute_buffer_;
|
||||
|
||||
// Mapping between point ids and attribute value ids.
|
||||
IndexTypeVector<PointIndex, AttributeValueIndex> indices_map_;
|
||||
AttributeValueIndex::ValueType num_unique_entries_;
|
||||
// Flag when the mapping between point ids and attribute values is identity.
|
||||
bool identity_mapping_;
|
||||
|
||||
// If an attribute contains transformed data (e.g. quantized), we can specify
|
||||
// the attribute transform here and use it to transform the attribute back to
|
||||
// its original format.
|
||||
std::unique_ptr<AttributeTransformData> attribute_transform_data_;
|
||||
|
||||
friend struct PointAttributeHasher;
|
||||
};
|
||||
|
||||
// Hash functor for the PointAttribute class.
|
||||
struct PointAttributeHasher {
|
||||
size_t operator()(const PointAttribute &attribute) const {
|
||||
GeometryAttributeHasher base_hasher;
|
||||
size_t hash = base_hasher(attribute);
|
||||
hash = HashCombine(attribute.identity_mapping_, hash);
|
||||
hash = HashCombine(attribute.num_unique_entries_, hash);
|
||||
hash = HashCombine(attribute.indices_map_.size(), hash);
|
||||
if (!attribute.indices_map_.empty()) {
|
||||
const uint64_t indices_hash = FingerprintString(
|
||||
reinterpret_cast<const char *>(attribute.indices_map_.data()),
|
||||
attribute.indices_map_.size());
|
||||
hash = HashCombine(indices_hash, hash);
|
||||
}
|
||||
if (attribute.attribute_buffer_ != nullptr) {
|
||||
const uint64_t buffer_hash = FingerprintString(
|
||||
reinterpret_cast<const char *>(attribute.attribute_buffer_->data()),
|
||||
attribute.attribute_buffer_->data_size());
|
||||
hash = HashCombine(buffer_hash, hash);
|
||||
}
|
||||
return hash;
|
||||
}
|
||||
};
|
||||
|
||||
} // namespace draco
|
||||
|
||||
#endif // DRACO_ATTRIBUTES_POINT_ATTRIBUTE_H_
|
||||
|
|
@ -0,0 +1,128 @@
|
|||
// Copyright 2017 The Draco Authors.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
//
|
||||
#include "draco/attributes/point_attribute.h"
|
||||
|
||||
#include "draco/core/draco_test_base.h"
|
||||
|
||||
namespace {
|
||||
|
||||
class PointAttributeTest : public ::testing::Test {
|
||||
protected:
|
||||
PointAttributeTest() {}
|
||||
};
|
||||
|
||||
TEST_F(PointAttributeTest, TestCopy) {
|
||||
// This test verifies that PointAttribute can copy data from another point
|
||||
// attribute.
|
||||
draco::PointAttribute pa;
|
||||
pa.Init(draco::GeometryAttribute::POSITION, 1, draco::DT_INT32, false, 10);
|
||||
|
||||
for (int32_t i = 0; i < 10; ++i) {
|
||||
pa.SetAttributeValue(draco::AttributeValueIndex(i), &i);
|
||||
}
|
||||
|
||||
pa.set_unique_id(12);
|
||||
|
||||
draco::PointAttribute other_pa;
|
||||
other_pa.CopyFrom(pa);
|
||||
|
||||
draco::PointAttributeHasher hasher;
|
||||
ASSERT_EQ(hasher(pa), hasher(other_pa));
|
||||
ASSERT_EQ(pa.unique_id(), other_pa.unique_id());
|
||||
|
||||
// The hash function does not actually compute the hash from attribute values,
|
||||
// so ensure the data got copied correctly as well.
|
||||
for (int32_t i = 0; i < 10; ++i) {
|
||||
int32_t data;
|
||||
other_pa.GetValue(draco::AttributeValueIndex(i), &data);
|
||||
ASSERT_EQ(data, i);
|
||||
}
|
||||
}
|
||||
|
||||
TEST_F(PointAttributeTest, TestGetValueFloat) {
|
||||
draco::PointAttribute pa;
|
||||
pa.Init(draco::GeometryAttribute::POSITION, 3, draco::DT_FLOAT32, false, 5);
|
||||
float points[3];
|
||||
for (int32_t i = 0; i < 5; ++i) {
|
||||
points[0] = i * 3.0;
|
||||
points[1] = (i * 3.0) + 1.0;
|
||||
points[2] = (i * 3.0) + 2.0;
|
||||
pa.SetAttributeValue(draco::AttributeValueIndex(i), &points);
|
||||
}
|
||||
|
||||
for (int32_t i = 0; i < 5; ++i) {
|
||||
pa.GetValue(draco::AttributeValueIndex(i), &points);
|
||||
ASSERT_FLOAT_EQ(points[0], i * 3.0);
|
||||
ASSERT_FLOAT_EQ(points[1], (i * 3.0) + 1.0);
|
||||
ASSERT_FLOAT_EQ(points[2], (i * 3.0) + 2.0);
|
||||
}
|
||||
}
|
||||
|
||||
TEST_F(PointAttributeTest, TestGetArray) {
|
||||
draco::PointAttribute pa;
|
||||
pa.Init(draco::GeometryAttribute::POSITION, 3, draco::DT_FLOAT32, false, 5);
|
||||
float points[3];
|
||||
for (int32_t i = 0; i < 5; ++i) {
|
||||
points[0] = i * 3.0;
|
||||
points[1] = (i * 3.0) + 1.0;
|
||||
points[2] = (i * 3.0) + 2.0;
|
||||
pa.SetAttributeValue(draco::AttributeValueIndex(i), &points);
|
||||
}
|
||||
|
||||
for (int32_t i = 0; i < 5; ++i) {
|
||||
std::array<float, 3> att_value;
|
||||
att_value = pa.GetValue<float, 3>(draco::AttributeValueIndex(i));
|
||||
ASSERT_FLOAT_EQ(att_value[0], i * 3.0);
|
||||
ASSERT_FLOAT_EQ(att_value[1], (i * 3.0) + 1.0);
|
||||
ASSERT_FLOAT_EQ(att_value[2], (i * 3.0) + 2.0);
|
||||
}
|
||||
for (int32_t i = 0; i < 5; ++i) {
|
||||
std::array<float, 3> att_value;
|
||||
EXPECT_TRUE(
|
||||
(pa.GetValue<float, 3>(draco::AttributeValueIndex(i), &att_value)));
|
||||
ASSERT_FLOAT_EQ(att_value[0], i * 3.0);
|
||||
ASSERT_FLOAT_EQ(att_value[1], (i * 3.0) + 1.0);
|
||||
ASSERT_FLOAT_EQ(att_value[2], (i * 3.0) + 2.0);
|
||||
}
|
||||
}
|
||||
|
||||
TEST_F(PointAttributeTest, TestArrayReadError) {
|
||||
draco::PointAttribute pa;
|
||||
pa.Init(draco::GeometryAttribute::POSITION, 3, draco::DT_FLOAT32, false, 5);
|
||||
float points[3];
|
||||
for (int32_t i = 0; i < 5; ++i) {
|
||||
points[0] = i * 3.0;
|
||||
points[1] = (i * 3.0) + 1.0;
|
||||
points[2] = (i * 3.0) + 2.0;
|
||||
pa.SetAttributeValue(draco::AttributeValueIndex(i), &points);
|
||||
}
|
||||
|
||||
std::array<float, 3> att_value;
|
||||
EXPECT_FALSE(
|
||||
(pa.GetValue<float, 3>(draco::AttributeValueIndex(5), &att_value)));
|
||||
}
|
||||
|
||||
TEST_F(PointAttributeTest, TestResize) {
|
||||
draco::PointAttribute pa;
|
||||
pa.Init(draco::GeometryAttribute::POSITION, 3, draco::DT_FLOAT32, false, 5);
|
||||
ASSERT_EQ(pa.size(), 5);
|
||||
ASSERT_EQ(pa.buffer()->data_size(), 4 * 3 * 5);
|
||||
|
||||
pa.Resize(10);
|
||||
ASSERT_EQ(pa.size(), 10);
|
||||
ASSERT_EQ(pa.buffer()->data_size(), 4 * 3 * 10);
|
||||
}
|
||||
|
||||
} // namespace
|
||||
|
|
@ -0,0 +1,127 @@
|
|||
// Copyright 2016 The Draco Authors.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
//
|
||||
#include "draco/compression/attributes/attributes_decoder.h"
|
||||
|
||||
#include "draco/core/varint_decoding.h"
|
||||
|
||||
namespace draco {
|
||||
|
||||
AttributesDecoder::AttributesDecoder()
|
||||
: point_cloud_decoder_(nullptr), point_cloud_(nullptr) {}
|
||||
|
||||
bool AttributesDecoder::Init(PointCloudDecoder *decoder, PointCloud *pc) {
|
||||
point_cloud_decoder_ = decoder;
|
||||
point_cloud_ = pc;
|
||||
return true;
|
||||
}
|
||||
|
||||
bool AttributesDecoder::DecodeAttributesDecoderData(DecoderBuffer *in_buffer) {
|
||||
// Decode and create attributes.
|
||||
uint32_t num_attributes;
|
||||
#ifdef DRACO_BACKWARDS_COMPATIBILITY_SUPPORTED
|
||||
if (point_cloud_decoder_->bitstream_version() <
|
||||
DRACO_BITSTREAM_VERSION(2, 0)) {
|
||||
if (!in_buffer->Decode(&num_attributes)) {
|
||||
return false;
|
||||
}
|
||||
} else
|
||||
#endif
|
||||
{
|
||||
if (!DecodeVarint(&num_attributes, in_buffer)) {
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
// Check that decoded number of attributes is valid.
|
||||
if (num_attributes == 0) {
|
||||
return false;
|
||||
}
|
||||
if (num_attributes > 5 * in_buffer->remaining_size()) {
|
||||
// The decoded number of attributes is unreasonably high, because at least
|
||||
// five bytes of attribute descriptor data per attribute are expected.
|
||||
return false;
|
||||
}
|
||||
|
||||
// Decode attribute descriptor data.
|
||||
point_attribute_ids_.resize(num_attributes);
|
||||
PointCloud *pc = point_cloud_;
|
||||
for (uint32_t i = 0; i < num_attributes; ++i) {
|
||||
// Decode attribute descriptor data.
|
||||
uint8_t att_type, data_type, num_components, normalized;
|
||||
if (!in_buffer->Decode(&att_type)) {
|
||||
return false;
|
||||
}
|
||||
if (!in_buffer->Decode(&data_type)) {
|
||||
return false;
|
||||
}
|
||||
if (!in_buffer->Decode(&num_components)) {
|
||||
return false;
|
||||
}
|
||||
if (!in_buffer->Decode(&normalized)) {
|
||||
return false;
|
||||
}
|
||||
if (att_type >= GeometryAttribute::NAMED_ATTRIBUTES_COUNT) {
|
||||
return false;
|
||||
}
|
||||
if (data_type == DT_INVALID || data_type >= DT_TYPES_COUNT) {
|
||||
return false;
|
||||
}
|
||||
|
||||
// Check decoded attribute descriptor data.
|
||||
if (num_components == 0) {
|
||||
return false;
|
||||
}
|
||||
|
||||
// Add the attribute to the point cloud.
|
||||
const DataType draco_dt = static_cast<DataType>(data_type);
|
||||
GeometryAttribute ga;
|
||||
ga.Init(static_cast<GeometryAttribute::Type>(att_type), nullptr,
|
||||
num_components, draco_dt, normalized > 0,
|
||||
DataTypeLength(draco_dt) * num_components, 0);
|
||||
uint32_t unique_id;
|
||||
#ifdef DRACO_BACKWARDS_COMPATIBILITY_SUPPORTED
|
||||
if (point_cloud_decoder_->bitstream_version() <
|
||||
DRACO_BITSTREAM_VERSION(1, 3)) {
|
||||
uint16_t custom_id;
|
||||
if (!in_buffer->Decode(&custom_id)) {
|
||||
return false;
|
||||
}
|
||||
// TODO(draco-eng): Add "custom_id" to attribute metadata.
|
||||
unique_id = static_cast<uint32_t>(custom_id);
|
||||
ga.set_unique_id(unique_id);
|
||||
} else
|
||||
#endif
|
||||
{
|
||||
if (!DecodeVarint(&unique_id, in_buffer)) {
|
||||
return false;
|
||||
}
|
||||
ga.set_unique_id(unique_id);
|
||||
}
|
||||
const int att_id = pc->AddAttribute(
|
||||
std::unique_ptr<PointAttribute>(new PointAttribute(ga)));
|
||||
pc->attribute(att_id)->set_unique_id(unique_id);
|
||||
point_attribute_ids_[i] = att_id;
|
||||
|
||||
// Update the inverse map.
|
||||
if (att_id >=
|
||||
static_cast<int32_t>(point_attribute_to_local_id_map_.size())) {
|
||||
point_attribute_to_local_id_map_.resize(att_id + 1, -1);
|
||||
}
|
||||
point_attribute_to_local_id_map_[att_id] = i;
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
} // namespace draco
|
||||
|
|
@ -0,0 +1,97 @@
|
|||
// Copyright 2016 The Draco Authors.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
//
|
||||
#ifndef DRACO_COMPRESSION_ATTRIBUTES_ATTRIBUTES_DECODER_H_
|
||||
#define DRACO_COMPRESSION_ATTRIBUTES_ATTRIBUTES_DECODER_H_
|
||||
|
||||
#include <vector>
|
||||
|
||||
#include "draco/compression/attributes/attributes_decoder_interface.h"
|
||||
#include "draco/compression/point_cloud/point_cloud_decoder.h"
|
||||
#include "draco/core/decoder_buffer.h"
|
||||
#include "draco/draco_features.h"
|
||||
#include "draco/point_cloud/point_cloud.h"
|
||||
|
||||
namespace draco {
|
||||
|
||||
// Base class for decoding one or more attributes that were encoded with a
|
||||
// matching AttributesEncoder. It is a basic implementation of
|
||||
// AttributesDecoderInterface that provides functionality that is shared between
|
||||
// all AttributesDecoders.
|
||||
class AttributesDecoder : public AttributesDecoderInterface {
|
||||
public:
|
||||
AttributesDecoder();
|
||||
virtual ~AttributesDecoder() = default;
|
||||
|
||||
// Called after all attribute decoders are created. It can be used to perform
|
||||
// any custom initialization.
|
||||
bool Init(PointCloudDecoder *decoder, PointCloud *pc) override;
|
||||
|
||||
// Decodes any attribute decoder specific data from the |in_buffer|.
|
||||
bool DecodeAttributesDecoderData(DecoderBuffer *in_buffer) override;
|
||||
|
||||
int32_t GetAttributeId(int i) const override {
|
||||
return point_attribute_ids_[i];
|
||||
}
|
||||
int32_t GetNumAttributes() const override {
|
||||
return static_cast<int32_t>(point_attribute_ids_.size());
|
||||
}
|
||||
PointCloudDecoder *GetDecoder() const override {
|
||||
return point_cloud_decoder_;
|
||||
}
|
||||
|
||||
// Decodes attribute data from the source buffer.
|
||||
bool DecodeAttributes(DecoderBuffer *in_buffer) override {
|
||||
if (!DecodePortableAttributes(in_buffer)) {
|
||||
return false;
|
||||
}
|
||||
if (!DecodeDataNeededByPortableTransforms(in_buffer)) {
|
||||
return false;
|
||||
}
|
||||
if (!TransformAttributesToOriginalFormat()) {
|
||||
return false;
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
protected:
|
||||
int32_t GetLocalIdForPointAttribute(int32_t point_attribute_id) const {
|
||||
const int id_map_size =
|
||||
static_cast<int>(point_attribute_to_local_id_map_.size());
|
||||
if (point_attribute_id >= id_map_size) {
|
||||
return -1;
|
||||
}
|
||||
return point_attribute_to_local_id_map_[point_attribute_id];
|
||||
}
|
||||
virtual bool DecodePortableAttributes(DecoderBuffer *in_buffer) = 0;
|
||||
virtual bool DecodeDataNeededByPortableTransforms(DecoderBuffer *in_buffer) {
|
||||
return true;
|
||||
}
|
||||
virtual bool TransformAttributesToOriginalFormat() { return true; }
|
||||
|
||||
private:
|
||||
// List of attribute ids that need to be decoded with this decoder.
|
||||
std::vector<int32_t> point_attribute_ids_;
|
||||
|
||||
// Map between point attribute id and the local id (i.e., the inverse of the
|
||||
// |point_attribute_ids_|.
|
||||
std::vector<int32_t> point_attribute_to_local_id_map_;
|
||||
|
||||
PointCloudDecoder *point_cloud_decoder_;
|
||||
PointCloud *point_cloud_;
|
||||
};
|
||||
|
||||
} // namespace draco
|
||||
|
||||
#endif // DRACO_COMPRESSION_ATTRIBUTES_ATTRIBUTES_DECODER_H_
|
||||
|
|
@ -0,0 +1,62 @@
|
|||
// Copyright 2017 The Draco Authors.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
//
|
||||
#ifndef DRACO_COMPRESSION_ATTRIBUTES_ATTRIBUTES_DECODER_INTERFACE_H_
|
||||
#define DRACO_COMPRESSION_ATTRIBUTES_ATTRIBUTES_DECODER_INTERFACE_H_
|
||||
|
||||
#include <vector>
|
||||
|
||||
#include "draco/core/decoder_buffer.h"
|
||||
#include "draco/point_cloud/point_cloud.h"
|
||||
|
||||
namespace draco {
|
||||
|
||||
class PointCloudDecoder;
|
||||
|
||||
// Interface class for decoding one or more attributes that were encoded with a
|
||||
// matching AttributesEncoder. It provides only the basic interface
|
||||
// that is used by the PointCloudDecoder. The actual decoding must be
|
||||
// implemented in derived classes using the DecodeAttributes() method.
|
||||
class AttributesDecoderInterface {
|
||||
public:
|
||||
AttributesDecoderInterface() = default;
|
||||
virtual ~AttributesDecoderInterface() = default;
|
||||
|
||||
// Called after all attribute decoders are created. It can be used to perform
|
||||
// any custom initialization.
|
||||
virtual bool Init(PointCloudDecoder *decoder, PointCloud *pc) = 0;
|
||||
|
||||
// Decodes any attribute decoder specific data from the |in_buffer|.
|
||||
virtual bool DecodeAttributesDecoderData(DecoderBuffer *in_buffer) = 0;
|
||||
|
||||
// Decode attribute data from the source buffer. Needs to be implemented by
|
||||
// the derived classes.
|
||||
virtual bool DecodeAttributes(DecoderBuffer *in_buffer) = 0;
|
||||
|
||||
virtual int32_t GetAttributeId(int i) const = 0;
|
||||
virtual int32_t GetNumAttributes() const = 0;
|
||||
virtual PointCloudDecoder *GetDecoder() const = 0;
|
||||
|
||||
// Returns an attribute containing data processed by the attribute transform.
|
||||
// (see TransformToPortableFormat() method). This data is guaranteed to be
|
||||
// same for encoder and decoder and it can be used by predictors.
|
||||
virtual const PointAttribute *GetPortableAttribute(
|
||||
int32_t /* point_attribute_id */) {
|
||||
return nullptr;
|
||||
}
|
||||
};
|
||||
|
||||
} // namespace draco
|
||||
|
||||
#endif // DRACO_COMPRESSION_ATTRIBUTES_ATTRIBUTES_DECODER_INTERFACE_H_
|
||||
|
|
@ -0,0 +1,49 @@
|
|||
// Copyright 2016 The Draco Authors.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
//
|
||||
#include "draco/compression/attributes/attributes_encoder.h"
|
||||
|
||||
#include "draco/core/varint_encoding.h"
|
||||
|
||||
namespace draco {
|
||||
|
||||
AttributesEncoder::AttributesEncoder()
|
||||
: point_cloud_encoder_(nullptr), point_cloud_(nullptr) {}
|
||||
|
||||
AttributesEncoder::AttributesEncoder(int att_id) : AttributesEncoder() {
|
||||
AddAttributeId(att_id);
|
||||
}
|
||||
|
||||
bool AttributesEncoder::Init(PointCloudEncoder *encoder, const PointCloud *pc) {
|
||||
point_cloud_encoder_ = encoder;
|
||||
point_cloud_ = pc;
|
||||
return true;
|
||||
}
|
||||
|
||||
bool AttributesEncoder::EncodeAttributesEncoderData(EncoderBuffer *out_buffer) {
|
||||
// Encode data about all attributes.
|
||||
EncodeVarint(num_attributes(), out_buffer);
|
||||
for (uint32_t i = 0; i < num_attributes(); ++i) {
|
||||
const int32_t att_id = point_attribute_ids_[i];
|
||||
const PointAttribute *const pa = point_cloud_->attribute(att_id);
|
||||
out_buffer->Encode(static_cast<uint8_t>(pa->attribute_type()));
|
||||
out_buffer->Encode(static_cast<uint8_t>(pa->data_type()));
|
||||
out_buffer->Encode(static_cast<uint8_t>(pa->num_components()));
|
||||
out_buffer->Encode(static_cast<uint8_t>(pa->normalized()));
|
||||
EncodeVarint(pa->unique_id(), out_buffer);
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
} // namespace draco
|
||||
|
|
@ -0,0 +1,154 @@
|
|||
// Copyright 2016 The Draco Authors.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
//
|
||||
#ifndef DRACO_COMPRESSION_ATTRIBUTES_ATTRIBUTES_ENCODER_H_
|
||||
#define DRACO_COMPRESSION_ATTRIBUTES_ATTRIBUTES_ENCODER_H_
|
||||
|
||||
#include "draco/attributes/point_attribute.h"
|
||||
#include "draco/core/encoder_buffer.h"
|
||||
#include "draco/point_cloud/point_cloud.h"
|
||||
|
||||
namespace draco {
|
||||
|
||||
class PointCloudEncoder;
|
||||
|
||||
// Base class for encoding one or more attributes of a PointCloud (or other
|
||||
// geometry). This base class provides only the basic interface that is used
|
||||
// by the PointCloudEncoder.
|
||||
class AttributesEncoder {
|
||||
public:
|
||||
AttributesEncoder();
|
||||
// Constructs an attribute encoder associated with a given point attribute.
|
||||
explicit AttributesEncoder(int point_attrib_id);
|
||||
virtual ~AttributesEncoder() = default;
|
||||
|
||||
// Called after all attribute encoders are created. It can be used to perform
|
||||
// any custom initialization, including setting up attribute dependencies.
|
||||
// Note: no data should be encoded in this function, because the decoder may
|
||||
// process encoders in a different order from the decoder.
|
||||
virtual bool Init(PointCloudEncoder *encoder, const PointCloud *pc);
|
||||
|
||||
// Encodes data needed by the target attribute decoder.
|
||||
virtual bool EncodeAttributesEncoderData(EncoderBuffer *out_buffer);
|
||||
|
||||
// Returns a unique identifier of the given encoder type, that is used during
|
||||
// decoding to construct the corresponding attribute decoder.
|
||||
virtual uint8_t GetUniqueId() const = 0;
|
||||
|
||||
// Encode attribute data to the target buffer.
|
||||
virtual bool EncodeAttributes(EncoderBuffer *out_buffer) {
|
||||
if (!TransformAttributesToPortableFormat()) {
|
||||
return false;
|
||||
}
|
||||
if (!EncodePortableAttributes(out_buffer)) {
|
||||
return false;
|
||||
}
|
||||
// Encode data needed by portable transforms after the attribute is encoded.
|
||||
// This corresponds to the order in which the data is going to be decoded by
|
||||
// the decoder.
|
||||
if (!EncodeDataNeededByPortableTransforms(out_buffer)) {
|
||||
return false;
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
// Returns the number of attributes that need to be encoded before the
|
||||
// specified attribute is encoded.
|
||||
// Note that the attribute is specified by its point attribute id.
|
||||
virtual int NumParentAttributes(int32_t /* point_attribute_id */) const {
|
||||
return 0;
|
||||
}
|
||||
|
||||
virtual int GetParentAttributeId(int32_t /* point_attribute_id */,
|
||||
int32_t /* parent_i */) const {
|
||||
return -1;
|
||||
}
|
||||
|
||||
// Marks a given attribute as a parent of another attribute.
|
||||
virtual bool MarkParentAttribute(int32_t /* point_attribute_id */) {
|
||||
return false;
|
||||
}
|
||||
|
||||
// Returns an attribute containing data processed by the attribute transform.
|
||||
// (see TransformToPortableFormat() method). This data is guaranteed to be
|
||||
// encoded losslessly and it can be safely used for predictors.
|
||||
virtual const PointAttribute *GetPortableAttribute(
|
||||
int32_t /* point_attribute_id */) {
|
||||
return nullptr;
|
||||
}
|
||||
|
||||
void AddAttributeId(int32_t id) {
|
||||
point_attribute_ids_.push_back(id);
|
||||
if (id >= static_cast<int32_t>(point_attribute_to_local_id_map_.size())) {
|
||||
point_attribute_to_local_id_map_.resize(id + 1, -1);
|
||||
}
|
||||
point_attribute_to_local_id_map_[id] =
|
||||
static_cast<int32_t>(point_attribute_ids_.size()) - 1;
|
||||
}
|
||||
|
||||
// Sets new attribute point ids (replacing the existing ones).
|
||||
void SetAttributeIds(const std::vector<int32_t> &point_attribute_ids) {
|
||||
point_attribute_ids_.clear();
|
||||
point_attribute_to_local_id_map_.clear();
|
||||
for (int32_t att_id : point_attribute_ids) {
|
||||
AddAttributeId(att_id);
|
||||
}
|
||||
}
|
||||
|
||||
int32_t GetAttributeId(int i) const { return point_attribute_ids_[i]; }
|
||||
uint32_t num_attributes() const {
|
||||
return static_cast<uint32_t>(point_attribute_ids_.size());
|
||||
}
|
||||
PointCloudEncoder *encoder() const { return point_cloud_encoder_; }
|
||||
|
||||
protected:
|
||||
// Transforms the input attribute data into a form that should be losslessly
|
||||
// encoded (transform itself can be lossy).
|
||||
virtual bool TransformAttributesToPortableFormat() { return true; }
|
||||
|
||||
// Losslessly encodes data of all portable attributes.
|
||||
// Precondition: All attributes must have been transformed into portable
|
||||
// format at this point (see TransformAttributesToPortableFormat() method).
|
||||
virtual bool EncodePortableAttributes(EncoderBuffer *out_buffer) = 0;
|
||||
|
||||
// Encodes any data needed to revert the transform to portable format for each
|
||||
// attribute (e.g. data needed for dequantization of quantized values).
|
||||
virtual bool EncodeDataNeededByPortableTransforms(EncoderBuffer *out_buffer) {
|
||||
return true;
|
||||
}
|
||||
|
||||
int32_t GetLocalIdForPointAttribute(int32_t point_attribute_id) const {
|
||||
const int id_map_size =
|
||||
static_cast<int>(point_attribute_to_local_id_map_.size());
|
||||
if (point_attribute_id >= id_map_size) {
|
||||
return -1;
|
||||
}
|
||||
return point_attribute_to_local_id_map_[point_attribute_id];
|
||||
}
|
||||
|
||||
private:
|
||||
// List of attribute ids that need to be encoded with this encoder.
|
||||
std::vector<int32_t> point_attribute_ids_;
|
||||
|
||||
// Map between point attribute id and the local id (i.e., the inverse of the
|
||||
// |point_attribute_ids_|.
|
||||
std::vector<int32_t> point_attribute_to_local_id_map_;
|
||||
|
||||
PointCloudEncoder *point_cloud_encoder_;
|
||||
const PointCloud *point_cloud_;
|
||||
};
|
||||
|
||||
} // namespace draco
|
||||
|
||||
#endif // DRACO_COMPRESSION_ATTRIBUTES_ATTRIBUTES_ENCODER_H_
|
||||
|
|
@ -0,0 +1,556 @@
|
|||
// Copyright 2016 The Draco Authors.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
//
|
||||
#include "draco/compression/attributes/kd_tree_attributes_decoder.h"
|
||||
|
||||
#include "draco/compression/attributes/kd_tree_attributes_shared.h"
|
||||
#include "draco/compression/point_cloud/algorithms/dynamic_integer_points_kd_tree_decoder.h"
|
||||
#include "draco/compression/point_cloud/algorithms/float_points_tree_decoder.h"
|
||||
#include "draco/compression/point_cloud/point_cloud_decoder.h"
|
||||
#include "draco/core/draco_types.h"
|
||||
#include "draco/core/varint_decoding.h"
|
||||
|
||||
namespace draco {
|
||||
|
||||
// attribute, offset_dimensionality, data_type, data_size, num_components
|
||||
using AttributeTuple =
|
||||
std::tuple<PointAttribute *, uint32_t, DataType, uint32_t, uint32_t>;
|
||||
|
||||
// Output iterator that is used to decode values directly into the data buffer
|
||||
// of the modified PointAttribute.
|
||||
// The extension of this iterator beyond the DT_UINT32 concerns itself only with
|
||||
// the size of the data for efficiency, not the type. DataType is conveyed in
|
||||
// but is an unused field populated for any future logic/special casing.
|
||||
// DT_UINT32 and all other 4-byte types are naturally supported from the size of
|
||||
// data in the kd tree encoder. DT_UINT16 and DT_UINT8 are supported by way
|
||||
// of byte copies into a temporary memory buffer.
|
||||
template <class CoeffT>
|
||||
class PointAttributeVectorOutputIterator {
|
||||
typedef PointAttributeVectorOutputIterator<CoeffT> Self;
|
||||
|
||||
public:
|
||||
PointAttributeVectorOutputIterator(
|
||||
PointAttributeVectorOutputIterator &&that) = default;
|
||||
|
||||
explicit PointAttributeVectorOutputIterator(
|
||||
const std::vector<AttributeTuple> &atts)
|
||||
: attributes_(atts), point_id_(0) {
|
||||
DRACO_DCHECK_GE(atts.size(), 1);
|
||||
uint32_t required_decode_bytes = 0;
|
||||
for (auto index = 0; index < attributes_.size(); index++) {
|
||||
const AttributeTuple &att = attributes_[index];
|
||||
required_decode_bytes = (std::max)(required_decode_bytes,
|
||||
std::get<3>(att) * std::get<4>(att));
|
||||
}
|
||||
memory_.resize(required_decode_bytes);
|
||||
data_ = memory_.data();
|
||||
}
|
||||
|
||||
const Self &operator++() {
|
||||
++point_id_;
|
||||
return *this;
|
||||
}
|
||||
|
||||
// We do not want to do ANY copying of this constructor so this particular
|
||||
// operator is disabled for performance reasons.
|
||||
// Self operator++(int) {
|
||||
// Self copy = *this;
|
||||
// ++point_id_;
|
||||
// return copy;
|
||||
// }
|
||||
|
||||
Self &operator*() { return *this; }
|
||||
// Still needed in some cases.
|
||||
// TODO(hemmer): remove.
|
||||
// hardcoded to 3 based on legacy usage.
|
||||
const Self &operator=(const VectorD<CoeffT, 3> &val) {
|
||||
DRACO_DCHECK_EQ(attributes_.size(), 1); // Expect only ONE attribute.
|
||||
AttributeTuple &att = attributes_[0];
|
||||
PointAttribute *attribute = std::get<0>(att);
|
||||
const uint32_t &offset = std::get<1>(att);
|
||||
DRACO_DCHECK_EQ(offset, 0); // expected to be zero
|
||||
attribute->SetAttributeValue(attribute->mapped_index(point_id_),
|
||||
&val[0] + offset);
|
||||
return *this;
|
||||
}
|
||||
// Additional operator taking std::vector as argument.
|
||||
const Self &operator=(const std::vector<CoeffT> &val) {
|
||||
for (auto index = 0; index < attributes_.size(); index++) {
|
||||
AttributeTuple &att = attributes_[index];
|
||||
PointAttribute *attribute = std::get<0>(att);
|
||||
const uint32_t &offset = std::get<1>(att);
|
||||
const uint32_t &data_size = std::get<3>(att);
|
||||
const uint32_t &num_components = std::get<4>(att);
|
||||
const uint32_t *data_source = val.data() + offset;
|
||||
if (data_size < 4) { // handle uint16_t, uint8_t
|
||||
// selectively copy data bytes
|
||||
uint8_t *data_counter = data_;
|
||||
for (uint32_t index = 0; index < num_components;
|
||||
index += 1, data_counter += data_size) {
|
||||
std::memcpy(data_counter, data_source + index, data_size);
|
||||
}
|
||||
// redirect to copied data
|
||||
data_source = reinterpret_cast<uint32_t *>(data_);
|
||||
}
|
||||
const AttributeValueIndex avi = attribute->mapped_index(point_id_);
|
||||
if (avi >= static_cast<uint32_t>(attribute->size())) {
|
||||
return *this;
|
||||
}
|
||||
attribute->SetAttributeValue(avi, data_source);
|
||||
}
|
||||
return *this;
|
||||
}
|
||||
|
||||
private:
|
||||
// preallocated memory for buffering different data sizes. Never reallocated.
|
||||
std::vector<uint8_t> memory_;
|
||||
uint8_t *data_;
|
||||
std::vector<AttributeTuple> attributes_;
|
||||
PointIndex point_id_;
|
||||
|
||||
// NO COPY
|
||||
PointAttributeVectorOutputIterator(
|
||||
const PointAttributeVectorOutputIterator &that) = delete;
|
||||
PointAttributeVectorOutputIterator &operator=(
|
||||
PointAttributeVectorOutputIterator const &) = delete;
|
||||
};
|
||||
|
||||
KdTreeAttributesDecoder::KdTreeAttributesDecoder() {}
|
||||
|
||||
bool KdTreeAttributesDecoder::DecodePortableAttributes(
|
||||
DecoderBuffer *in_buffer) {
|
||||
if (in_buffer->bitstream_version() < DRACO_BITSTREAM_VERSION(2, 3)) {
|
||||
// Old bitstream does everything in the
|
||||
// DecodeDataNeededByPortableTransforms() method.
|
||||
return true;
|
||||
}
|
||||
uint8_t compression_level = 0;
|
||||
if (!in_buffer->Decode(&compression_level)) {
|
||||
return false;
|
||||
}
|
||||
const int32_t num_points = GetDecoder()->point_cloud()->num_points();
|
||||
|
||||
// Decode data using the kd tree decoding into integer (portable) attributes.
|
||||
// We first need to go over all attributes and create a new portable storage
|
||||
// for those attributes that need it (floating point attributes that have to
|
||||
// be dequantized after decoding).
|
||||
|
||||
const int num_attributes = GetNumAttributes();
|
||||
uint32_t total_dimensionality = 0; // position is a required dimension
|
||||
std::vector<AttributeTuple> atts(num_attributes);
|
||||
|
||||
for (int i = 0; i < GetNumAttributes(); ++i) {
|
||||
const int att_id = GetAttributeId(i);
|
||||
PointAttribute *const att = GetDecoder()->point_cloud()->attribute(att_id);
|
||||
// All attributes have the same number of values and identity mapping
|
||||
// between PointIndex and AttributeValueIndex.
|
||||
att->Reset(num_points);
|
||||
att->SetIdentityMapping();
|
||||
|
||||
PointAttribute *target_att = nullptr;
|
||||
if (att->data_type() == DT_UINT32 || att->data_type() == DT_UINT16 ||
|
||||
att->data_type() == DT_UINT8) {
|
||||
// We can decode to these attributes directly.
|
||||
target_att = att;
|
||||
} else if (att->data_type() == DT_INT32 || att->data_type() == DT_INT16 ||
|
||||
att->data_type() == DT_INT8) {
|
||||
// Prepare storage for data that is used to convert unsigned values back
|
||||
// to the signed ones.
|
||||
for (int c = 0; c < att->num_components(); ++c) {
|
||||
min_signed_values_.push_back(0);
|
||||
}
|
||||
target_att = att;
|
||||
} else if (att->data_type() == DT_FLOAT32) {
|
||||
// Create a portable attribute that will hold the decoded data. We will
|
||||
// dequantize the decoded data to the final attribute later on.
|
||||
const int num_components = att->num_components();
|
||||
GeometryAttribute va;
|
||||
va.Init(att->attribute_type(), nullptr, num_components, DT_UINT32, false,
|
||||
num_components * DataTypeLength(DT_UINT32), 0);
|
||||
std::unique_ptr<PointAttribute> port_att(new PointAttribute(va));
|
||||
port_att->SetIdentityMapping();
|
||||
port_att->Reset(num_points);
|
||||
quantized_portable_attributes_.push_back(std::move(port_att));
|
||||
target_att = quantized_portable_attributes_.back().get();
|
||||
} else {
|
||||
// Unsupported type.
|
||||
return false;
|
||||
}
|
||||
// Add attribute to the output iterator used by the core algorithm.
|
||||
const DataType data_type = target_att->data_type();
|
||||
const uint32_t data_size = (std::max)(0, DataTypeLength(data_type));
|
||||
const uint32_t num_components = target_att->num_components();
|
||||
atts[i] = std::make_tuple(target_att, total_dimensionality, data_type,
|
||||
data_size, num_components);
|
||||
total_dimensionality += num_components;
|
||||
}
|
||||
PointAttributeVectorOutputIterator<uint32_t> out_it(atts);
|
||||
|
||||
switch (compression_level) {
|
||||
case 0: {
|
||||
DynamicIntegerPointsKdTreeDecoder<0> decoder(total_dimensionality);
|
||||
if (!decoder.DecodePoints(in_buffer, out_it)) {
|
||||
return false;
|
||||
}
|
||||
break;
|
||||
}
|
||||
case 1: {
|
||||
DynamicIntegerPointsKdTreeDecoder<1> decoder(total_dimensionality);
|
||||
if (!decoder.DecodePoints(in_buffer, out_it)) {
|
||||
return false;
|
||||
}
|
||||
break;
|
||||
}
|
||||
case 2: {
|
||||
DynamicIntegerPointsKdTreeDecoder<2> decoder(total_dimensionality);
|
||||
if (!decoder.DecodePoints(in_buffer, out_it)) {
|
||||
return false;
|
||||
}
|
||||
break;
|
||||
}
|
||||
case 3: {
|
||||
DynamicIntegerPointsKdTreeDecoder<3> decoder(total_dimensionality);
|
||||
if (!decoder.DecodePoints(in_buffer, out_it)) {
|
||||
return false;
|
||||
}
|
||||
break;
|
||||
}
|
||||
case 4: {
|
||||
DynamicIntegerPointsKdTreeDecoder<4> decoder(total_dimensionality);
|
||||
if (!decoder.DecodePoints(in_buffer, out_it)) {
|
||||
return false;
|
||||
}
|
||||
break;
|
||||
}
|
||||
case 5: {
|
||||
DynamicIntegerPointsKdTreeDecoder<5> decoder(total_dimensionality);
|
||||
if (!decoder.DecodePoints(in_buffer, out_it)) {
|
||||
return false;
|
||||
}
|
||||
break;
|
||||
}
|
||||
case 6: {
|
||||
DynamicIntegerPointsKdTreeDecoder<6> decoder(total_dimensionality);
|
||||
if (!decoder.DecodePoints(in_buffer, out_it)) {
|
||||
return false;
|
||||
}
|
||||
break;
|
||||
}
|
||||
default:
|
||||
return false;
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
bool KdTreeAttributesDecoder::DecodeDataNeededByPortableTransforms(
|
||||
DecoderBuffer *in_buffer) {
|
||||
if (in_buffer->bitstream_version() >= DRACO_BITSTREAM_VERSION(2, 3)) {
|
||||
// Decode quantization data for each attribute that need it.
|
||||
// TODO(ostava): This should be moved to AttributeQuantizationTransform.
|
||||
std::vector<float> min_value;
|
||||
for (int i = 0; i < GetNumAttributes(); ++i) {
|
||||
const int att_id = GetAttributeId(i);
|
||||
const PointAttribute *const att =
|
||||
GetDecoder()->point_cloud()->attribute(att_id);
|
||||
if (att->data_type() == DT_FLOAT32) {
|
||||
const int num_components = att->num_components();
|
||||
min_value.resize(num_components);
|
||||
if (!in_buffer->Decode(&min_value[0], sizeof(float) * num_components)) {
|
||||
return false;
|
||||
}
|
||||
float max_value_dif;
|
||||
if (!in_buffer->Decode(&max_value_dif)) {
|
||||
return false;
|
||||
}
|
||||
uint8_t quantization_bits;
|
||||
if (!in_buffer->Decode(&quantization_bits) || quantization_bits > 31) {
|
||||
return false;
|
||||
}
|
||||
AttributeQuantizationTransform transform;
|
||||
if (!transform.SetParameters(quantization_bits, min_value.data(),
|
||||
num_components, max_value_dif)) {
|
||||
return false;
|
||||
}
|
||||
const int num_transforms =
|
||||
static_cast<int>(attribute_quantization_transforms_.size());
|
||||
if (!transform.TransferToAttribute(
|
||||
quantized_portable_attributes_[num_transforms].get())) {
|
||||
return false;
|
||||
}
|
||||
attribute_quantization_transforms_.push_back(transform);
|
||||
}
|
||||
}
|
||||
|
||||
// Decode transform data for signed integer attributes.
|
||||
for (int i = 0; i < min_signed_values_.size(); ++i) {
|
||||
int32_t val;
|
||||
if (!DecodeVarint(&val, in_buffer)) {
|
||||
return false;
|
||||
}
|
||||
min_signed_values_[i] = val;
|
||||
}
|
||||
return true;
|
||||
}
|
||||
#ifdef DRACO_BACKWARDS_COMPATIBILITY_SUPPORTED
|
||||
// Handle old bitstream
|
||||
// Figure out the total dimensionality of the point cloud
|
||||
const uint32_t attribute_count = GetNumAttributes();
|
||||
uint32_t total_dimensionality = 0; // position is a required dimension
|
||||
std::vector<AttributeTuple> atts(attribute_count);
|
||||
for (auto attribute_index = 0;
|
||||
static_cast<uint32_t>(attribute_index) < attribute_count;
|
||||
attribute_index += 1) // increment the dimensionality as needed...
|
||||
{
|
||||
const int att_id = GetAttributeId(attribute_index);
|
||||
PointAttribute *const att = GetDecoder()->point_cloud()->attribute(att_id);
|
||||
const DataType data_type = att->data_type();
|
||||
const uint32_t data_size = (std::max)(0, DataTypeLength(data_type));
|
||||
const uint32_t num_components = att->num_components();
|
||||
if (data_size > 4) {
|
||||
return false;
|
||||
}
|
||||
|
||||
atts[attribute_index] = std::make_tuple(
|
||||
att, total_dimensionality, data_type, data_size, num_components);
|
||||
// everything is treated as 32bit in the encoder.
|
||||
total_dimensionality += num_components;
|
||||
}
|
||||
|
||||
const int att_id = GetAttributeId(0);
|
||||
PointAttribute *const att = GetDecoder()->point_cloud()->attribute(att_id);
|
||||
att->SetIdentityMapping();
|
||||
// Decode method
|
||||
uint8_t method;
|
||||
if (!in_buffer->Decode(&method)) {
|
||||
return false;
|
||||
}
|
||||
if (method == KdTreeAttributesEncodingMethod::kKdTreeQuantizationEncoding) {
|
||||
uint8_t compression_level = 0;
|
||||
if (!in_buffer->Decode(&compression_level)) {
|
||||
return false;
|
||||
}
|
||||
uint32_t num_points = 0;
|
||||
if (!in_buffer->Decode(&num_points)) {
|
||||
return false;
|
||||
}
|
||||
att->Reset(num_points);
|
||||
FloatPointsTreeDecoder decoder;
|
||||
decoder.set_num_points_from_header(num_points);
|
||||
PointAttributeVectorOutputIterator<float> out_it(atts);
|
||||
if (!decoder.DecodePointCloud(in_buffer, out_it)) {
|
||||
return false;
|
||||
}
|
||||
} else if (method == KdTreeAttributesEncodingMethod::kKdTreeIntegerEncoding) {
|
||||
uint8_t compression_level = 0;
|
||||
if (!in_buffer->Decode(&compression_level)) {
|
||||
return false;
|
||||
}
|
||||
if (6 < compression_level) {
|
||||
DRACO_LOGE(
|
||||
"KdTreeAttributesDecoder: compression level %i not supported.\n",
|
||||
compression_level);
|
||||
return false;
|
||||
}
|
||||
|
||||
uint32_t num_points;
|
||||
if (!in_buffer->Decode(&num_points)) {
|
||||
return false;
|
||||
}
|
||||
|
||||
for (auto attribute_index = 0;
|
||||
static_cast<uint32_t>(attribute_index) < attribute_count;
|
||||
attribute_index += 1) {
|
||||
const int att_id = GetAttributeId(attribute_index);
|
||||
PointAttribute *const attr =
|
||||
GetDecoder()->point_cloud()->attribute(att_id);
|
||||
attr->Reset(num_points);
|
||||
attr->SetIdentityMapping();
|
||||
};
|
||||
|
||||
PointAttributeVectorOutputIterator<uint32_t> out_it(atts);
|
||||
|
||||
switch (compression_level) {
|
||||
case 0: {
|
||||
DynamicIntegerPointsKdTreeDecoder<0> decoder(total_dimensionality);
|
||||
if (!decoder.DecodePoints(in_buffer, out_it)) {
|
||||
return false;
|
||||
}
|
||||
break;
|
||||
}
|
||||
case 1: {
|
||||
DynamicIntegerPointsKdTreeDecoder<1> decoder(total_dimensionality);
|
||||
if (!decoder.DecodePoints(in_buffer, out_it)) {
|
||||
return false;
|
||||
}
|
||||
break;
|
||||
}
|
||||
case 2: {
|
||||
DynamicIntegerPointsKdTreeDecoder<2> decoder(total_dimensionality);
|
||||
if (!decoder.DecodePoints(in_buffer, out_it)) {
|
||||
return false;
|
||||
}
|
||||
break;
|
||||
}
|
||||
case 3: {
|
||||
DynamicIntegerPointsKdTreeDecoder<3> decoder(total_dimensionality);
|
||||
if (!decoder.DecodePoints(in_buffer, out_it)) {
|
||||
return false;
|
||||
}
|
||||
break;
|
||||
}
|
||||
case 4: {
|
||||
DynamicIntegerPointsKdTreeDecoder<4> decoder(total_dimensionality);
|
||||
if (!decoder.DecodePoints(in_buffer, out_it)) {
|
||||
return false;
|
||||
}
|
||||
break;
|
||||
}
|
||||
case 5: {
|
||||
DynamicIntegerPointsKdTreeDecoder<5> decoder(total_dimensionality);
|
||||
if (!decoder.DecodePoints(in_buffer, out_it)) {
|
||||
return false;
|
||||
}
|
||||
break;
|
||||
}
|
||||
case 6: {
|
||||
DynamicIntegerPointsKdTreeDecoder<6> decoder(total_dimensionality);
|
||||
if (!decoder.DecodePoints(in_buffer, out_it)) {
|
||||
return false;
|
||||
}
|
||||
break;
|
||||
}
|
||||
default:
|
||||
return false;
|
||||
}
|
||||
} else {
|
||||
// Invalid method.
|
||||
return false;
|
||||
}
|
||||
return true;
|
||||
#else
|
||||
return false;
|
||||
#endif
|
||||
}
|
||||
|
||||
template <typename SignedDataTypeT>
|
||||
bool KdTreeAttributesDecoder::TransformAttributeBackToSignedType(
|
||||
PointAttribute *att, int num_processed_signed_components) {
|
||||
typedef typename std::make_unsigned<SignedDataTypeT>::type UnsignedType;
|
||||
std::vector<UnsignedType> unsigned_val(att->num_components());
|
||||
std::vector<SignedDataTypeT> signed_val(att->num_components());
|
||||
|
||||
for (AttributeValueIndex avi(0); avi < static_cast<uint32_t>(att->size());
|
||||
++avi) {
|
||||
att->GetValue(avi, &unsigned_val[0]);
|
||||
for (int c = 0; c < att->num_components(); ++c) {
|
||||
// Up-cast |unsigned_val| to int32_t to ensure we don't overflow it for
|
||||
// smaller data types.
|
||||
signed_val[c] = static_cast<SignedDataTypeT>(
|
||||
static_cast<int32_t>(unsigned_val[c]) +
|
||||
min_signed_values_[num_processed_signed_components + c]);
|
||||
}
|
||||
att->SetAttributeValue(avi, &signed_val[0]);
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
bool KdTreeAttributesDecoder::TransformAttributesToOriginalFormat() {
|
||||
if (quantized_portable_attributes_.empty() && min_signed_values_.empty()) {
|
||||
return true;
|
||||
}
|
||||
int num_processed_quantized_attributes = 0;
|
||||
int num_processed_signed_components = 0;
|
||||
// Dequantize attributes that needed it.
|
||||
for (int i = 0; i < GetNumAttributes(); ++i) {
|
||||
const int att_id = GetAttributeId(i);
|
||||
PointAttribute *const att = GetDecoder()->point_cloud()->attribute(att_id);
|
||||
if (att->data_type() == DT_INT32 || att->data_type() == DT_INT16 ||
|
||||
att->data_type() == DT_INT8) {
|
||||
std::vector<uint32_t> unsigned_val(att->num_components());
|
||||
std::vector<int32_t> signed_val(att->num_components());
|
||||
// Values are stored as unsigned in the attribute, make them signed again.
|
||||
if (att->data_type() == DT_INT32) {
|
||||
if (!TransformAttributeBackToSignedType<int32_t>(
|
||||
att, num_processed_signed_components)) {
|
||||
return false;
|
||||
}
|
||||
} else if (att->data_type() == DT_INT16) {
|
||||
if (!TransformAttributeBackToSignedType<int16_t>(
|
||||
att, num_processed_signed_components)) {
|
||||
return false;
|
||||
}
|
||||
} else if (att->data_type() == DT_INT8) {
|
||||
if (!TransformAttributeBackToSignedType<int8_t>(
|
||||
att, num_processed_signed_components)) {
|
||||
return false;
|
||||
}
|
||||
}
|
||||
num_processed_signed_components += att->num_components();
|
||||
} else if (att->data_type() == DT_FLOAT32) {
|
||||
// TODO(ostava): This code should be probably moved out to attribute
|
||||
// transform and shared with the SequentialQuantizationAttributeDecoder.
|
||||
|
||||
const PointAttribute *const src_att =
|
||||
quantized_portable_attributes_[num_processed_quantized_attributes]
|
||||
.get();
|
||||
|
||||
const AttributeQuantizationTransform &transform =
|
||||
attribute_quantization_transforms_
|
||||
[num_processed_quantized_attributes];
|
||||
|
||||
num_processed_quantized_attributes++;
|
||||
|
||||
if (GetDecoder()->options()->GetAttributeBool(
|
||||
att->attribute_type(), "skip_attribute_transform", false)) {
|
||||
// Attribute transform should not be performed. In this case, we replace
|
||||
// the output geometry attribute with the portable attribute.
|
||||
// TODO(ostava): We can potentially avoid this copy by introducing a new
|
||||
// mechanism that would allow to use the final attributes as portable
|
||||
// attributes for predictors that may need them.
|
||||
att->CopyFrom(*src_att);
|
||||
continue;
|
||||
}
|
||||
|
||||
// Convert all quantized values back to floats.
|
||||
const int32_t max_quantized_value =
|
||||
(1u << static_cast<uint32_t>(transform.quantization_bits())) - 1;
|
||||
const int num_components = att->num_components();
|
||||
const int entry_size = sizeof(float) * num_components;
|
||||
const std::unique_ptr<float[]> att_val(new float[num_components]);
|
||||
int quant_val_id = 0;
|
||||
int out_byte_pos = 0;
|
||||
Dequantizer dequantizer;
|
||||
if (!dequantizer.Init(transform.range(), max_quantized_value)) {
|
||||
return false;
|
||||
}
|
||||
const uint32_t *const portable_attribute_data =
|
||||
reinterpret_cast<const uint32_t *>(
|
||||
src_att->GetAddress(AttributeValueIndex(0)));
|
||||
for (uint32_t i = 0; i < src_att->size(); ++i) {
|
||||
for (int c = 0; c < num_components; ++c) {
|
||||
float value = dequantizer.DequantizeFloat(
|
||||
portable_attribute_data[quant_val_id++]);
|
||||
value = value + transform.min_value(c);
|
||||
att_val[c] = value;
|
||||
}
|
||||
// Store the floating point value into the attribute buffer.
|
||||
att->buffer()->Write(out_byte_pos, att_val.get(), entry_size);
|
||||
out_byte_pos += entry_size;
|
||||
}
|
||||
}
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
} // namespace draco
|
||||
|
|
@ -0,0 +1,46 @@
|
|||
// Copyright 2016 The Draco Authors.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
//
|
||||
#ifndef DRACO_COMPRESSION_ATTRIBUTES_KD_TREE_ATTRIBUTES_DECODER_H_
|
||||
#define DRACO_COMPRESSION_ATTRIBUTES_KD_TREE_ATTRIBUTES_DECODER_H_
|
||||
|
||||
#include "draco/attributes/attribute_quantization_transform.h"
|
||||
#include "draco/compression/attributes/attributes_decoder.h"
|
||||
|
||||
namespace draco {
|
||||
|
||||
// Decodes attributes encoded with the KdTreeAttributesEncoder.
|
||||
class KdTreeAttributesDecoder : public AttributesDecoder {
|
||||
public:
|
||||
KdTreeAttributesDecoder();
|
||||
|
||||
protected:
|
||||
bool DecodePortableAttributes(DecoderBuffer *in_buffer) override;
|
||||
bool DecodeDataNeededByPortableTransforms(DecoderBuffer *in_buffer) override;
|
||||
bool TransformAttributesToOriginalFormat() override;
|
||||
|
||||
private:
|
||||
template <typename SignedDataTypeT>
|
||||
bool TransformAttributeBackToSignedType(PointAttribute *att,
|
||||
int num_processed_signed_components);
|
||||
|
||||
std::vector<AttributeQuantizationTransform>
|
||||
attribute_quantization_transforms_;
|
||||
std::vector<int32_t> min_signed_values_;
|
||||
std::vector<std::unique_ptr<PointAttribute>> quantized_portable_attributes_;
|
||||
};
|
||||
|
||||
} // namespace draco
|
||||
|
||||
#endif // DRACO_COMPRESSION_ATTRIBUTES_KD_TREE_ATTRIBUTES_DECODER_H_
|
||||
|
|
@ -0,0 +1,305 @@
|
|||
// Copyright 2016 The Draco Authors.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
//
|
||||
#include "draco/compression/attributes/kd_tree_attributes_encoder.h"
|
||||
|
||||
#include "draco/compression/attributes/kd_tree_attributes_shared.h"
|
||||
#include "draco/compression/attributes/point_d_vector.h"
|
||||
#include "draco/compression/point_cloud/algorithms/dynamic_integer_points_kd_tree_encoder.h"
|
||||
#include "draco/compression/point_cloud/algorithms/float_points_tree_encoder.h"
|
||||
#include "draco/compression/point_cloud/point_cloud_encoder.h"
|
||||
#include "draco/core/varint_encoding.h"
|
||||
|
||||
namespace draco {
|
||||
|
||||
KdTreeAttributesEncoder::KdTreeAttributesEncoder() : num_components_(0) {}
|
||||
|
||||
KdTreeAttributesEncoder::KdTreeAttributesEncoder(int att_id)
|
||||
: AttributesEncoder(att_id), num_components_(0) {}
|
||||
|
||||
bool KdTreeAttributesEncoder::TransformAttributesToPortableFormat() {
|
||||
// Convert any of the input attributes into a format that can be processed by
|
||||
// the kd tree encoder (quantization of floating attributes for now).
|
||||
const size_t num_points = encoder()->point_cloud()->num_points();
|
||||
int num_components = 0;
|
||||
for (uint32_t i = 0; i < num_attributes(); ++i) {
|
||||
const int att_id = GetAttributeId(i);
|
||||
const PointAttribute *const att =
|
||||
encoder()->point_cloud()->attribute(att_id);
|
||||
num_components += att->num_components();
|
||||
}
|
||||
num_components_ = num_components;
|
||||
|
||||
// Go over all attributes and quantize them if needed.
|
||||
for (uint32_t i = 0; i < num_attributes(); ++i) {
|
||||
const int att_id = GetAttributeId(i);
|
||||
const PointAttribute *const att =
|
||||
encoder()->point_cloud()->attribute(att_id);
|
||||
if (att->data_type() == DT_FLOAT32) {
|
||||
// Quantization path.
|
||||
AttributeQuantizationTransform attribute_quantization_transform;
|
||||
const int quantization_bits = encoder()->options()->GetAttributeInt(
|
||||
att_id, "quantization_bits", -1);
|
||||
if (quantization_bits < 1) {
|
||||
return false;
|
||||
}
|
||||
if (encoder()->options()->IsAttributeOptionSet(att_id,
|
||||
"quantization_origin") &&
|
||||
encoder()->options()->IsAttributeOptionSet(att_id,
|
||||
"quantization_range")) {
|
||||
// Quantization settings are explicitly specified in the provided
|
||||
// options.
|
||||
std::vector<float> quantization_origin(att->num_components());
|
||||
encoder()->options()->GetAttributeVector(att_id, "quantization_origin",
|
||||
att->num_components(),
|
||||
&quantization_origin[0]);
|
||||
const float range = encoder()->options()->GetAttributeFloat(
|
||||
att_id, "quantization_range", 1.f);
|
||||
attribute_quantization_transform.SetParameters(
|
||||
quantization_bits, quantization_origin.data(),
|
||||
att->num_components(), range);
|
||||
} else {
|
||||
// Compute quantization settings from the attribute values.
|
||||
if (!attribute_quantization_transform.ComputeParameters(
|
||||
*att, quantization_bits)) {
|
||||
return false;
|
||||
}
|
||||
}
|
||||
attribute_quantization_transforms_.push_back(
|
||||
attribute_quantization_transform);
|
||||
// Store the quantized attribute in an array that will be used when we do
|
||||
// the actual encoding of the data.
|
||||
auto portable_att =
|
||||
attribute_quantization_transform.InitTransformedAttribute(*att,
|
||||
num_points);
|
||||
attribute_quantization_transform.TransformAttribute(*att, {},
|
||||
portable_att.get());
|
||||
quantized_portable_attributes_.push_back(std::move(portable_att));
|
||||
} else if (att->data_type() == DT_INT32 || att->data_type() == DT_INT16 ||
|
||||
att->data_type() == DT_INT8) {
|
||||
// For signed types, find the minimum value for each component. These
|
||||
// values are going to be used to transform the attribute values to
|
||||
// unsigned integers that can be processed by the core kd tree algorithm.
|
||||
std::vector<int32_t> min_value(att->num_components(),
|
||||
std::numeric_limits<int32_t>::max());
|
||||
std::vector<int32_t> act_value(att->num_components());
|
||||
for (AttributeValueIndex avi(0); avi < static_cast<uint32_t>(att->size());
|
||||
++avi) {
|
||||
att->ConvertValue<int32_t>(avi, &act_value[0]);
|
||||
for (int c = 0; c < att->num_components(); ++c) {
|
||||
if (min_value[c] > act_value[c]) {
|
||||
min_value[c] = act_value[c];
|
||||
}
|
||||
}
|
||||
}
|
||||
for (int c = 0; c < att->num_components(); ++c) {
|
||||
min_signed_values_.push_back(min_value[c]);
|
||||
}
|
||||
}
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
bool KdTreeAttributesEncoder::EncodeDataNeededByPortableTransforms(
|
||||
EncoderBuffer *out_buffer) {
|
||||
// Store quantization settings for all attributes that need it.
|
||||
for (int i = 0; i < attribute_quantization_transforms_.size(); ++i) {
|
||||
attribute_quantization_transforms_[i].EncodeParameters(out_buffer);
|
||||
}
|
||||
|
||||
// Encode data needed for transforming signed integers to unsigned ones.
|
||||
for (int i = 0; i < min_signed_values_.size(); ++i) {
|
||||
EncodeVarint<int32_t>(min_signed_values_[i], out_buffer);
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
bool KdTreeAttributesEncoder::EncodePortableAttributes(
|
||||
EncoderBuffer *out_buffer) {
|
||||
// Encode the data using the kd tree encoder algorithm. The data is first
|
||||
// copied to a PointDVector that provides all the API expected by the core
|
||||
// encoding algorithm.
|
||||
|
||||
// We limit the maximum value of compression_level to 6 as we don't currently
|
||||
// have viable algorithms for higher compression levels.
|
||||
uint8_t compression_level =
|
||||
std::min(10 - encoder()->options()->GetSpeed(), 6);
|
||||
DRACO_DCHECK_LE(compression_level, 6);
|
||||
|
||||
if (compression_level == 6 && num_components_ > 15) {
|
||||
// Don't use compression level for CL >= 6. Axis selection is currently
|
||||
// encoded using 4 bits.
|
||||
compression_level = 5;
|
||||
}
|
||||
|
||||
out_buffer->Encode(compression_level);
|
||||
|
||||
// Init PointDVector. The number of dimensions is equal to the total number
|
||||
// of dimensions across all attributes.
|
||||
const int num_points = encoder()->point_cloud()->num_points();
|
||||
PointDVector<uint32_t> point_vector(num_points, num_components_);
|
||||
|
||||
int num_processed_components = 0;
|
||||
int num_processed_quantized_attributes = 0;
|
||||
int num_processed_signed_components = 0;
|
||||
// Copy data to the point vector.
|
||||
for (uint32_t i = 0; i < num_attributes(); ++i) {
|
||||
const int att_id = GetAttributeId(i);
|
||||
const PointAttribute *const att =
|
||||
encoder()->point_cloud()->attribute(att_id);
|
||||
const PointAttribute *source_att = nullptr;
|
||||
if (att->data_type() == DT_UINT32 || att->data_type() == DT_UINT16 ||
|
||||
att->data_type() == DT_UINT8 || att->data_type() == DT_INT32 ||
|
||||
att->data_type() == DT_INT16 || att->data_type() == DT_INT8) {
|
||||
// Use the original attribute.
|
||||
source_att = att;
|
||||
} else if (att->data_type() == DT_FLOAT32) {
|
||||
// Use the portable (quantized) attribute instead.
|
||||
source_att =
|
||||
quantized_portable_attributes_[num_processed_quantized_attributes]
|
||||
.get();
|
||||
num_processed_quantized_attributes++;
|
||||
} else {
|
||||
// Unsupported data type.
|
||||
return false;
|
||||
}
|
||||
|
||||
if (source_att == nullptr) {
|
||||
return false;
|
||||
}
|
||||
|
||||
// Copy source_att to the vector.
|
||||
if (source_att->data_type() == DT_UINT32) {
|
||||
// If the data type is the same as the one used by the point vector, we
|
||||
// can directly copy individual elements.
|
||||
for (PointIndex pi(0); pi < num_points; ++pi) {
|
||||
const AttributeValueIndex avi = source_att->mapped_index(pi);
|
||||
const uint8_t *const att_value_address = source_att->GetAddress(avi);
|
||||
point_vector.CopyAttribute(source_att->num_components(),
|
||||
num_processed_components, pi.value(),
|
||||
att_value_address);
|
||||
}
|
||||
} else if (source_att->data_type() == DT_INT32 ||
|
||||
source_att->data_type() == DT_INT16 ||
|
||||
source_att->data_type() == DT_INT8) {
|
||||
// Signed values need to be converted to unsigned before they are stored
|
||||
// in the point vector.
|
||||
std::vector<int32_t> signed_point(source_att->num_components());
|
||||
std::vector<uint32_t> unsigned_point(source_att->num_components());
|
||||
for (PointIndex pi(0); pi < num_points; ++pi) {
|
||||
const AttributeValueIndex avi = source_att->mapped_index(pi);
|
||||
source_att->ConvertValue<int32_t>(avi, &signed_point[0]);
|
||||
for (int c = 0; c < source_att->num_components(); ++c) {
|
||||
unsigned_point[c] =
|
||||
signed_point[c] -
|
||||
min_signed_values_[num_processed_signed_components + c];
|
||||
}
|
||||
|
||||
point_vector.CopyAttribute(source_att->num_components(),
|
||||
num_processed_components, pi.value(),
|
||||
&unsigned_point[0]);
|
||||
}
|
||||
num_processed_signed_components += source_att->num_components();
|
||||
} else {
|
||||
// If the data type of the attribute is different, we have to convert the
|
||||
// value before we put it to the point vector.
|
||||
std::vector<uint32_t> point(source_att->num_components());
|
||||
for (PointIndex pi(0); pi < num_points; ++pi) {
|
||||
const AttributeValueIndex avi = source_att->mapped_index(pi);
|
||||
source_att->ConvertValue<uint32_t>(avi, &point[0]);
|
||||
point_vector.CopyAttribute(source_att->num_components(),
|
||||
num_processed_components, pi.value(),
|
||||
point.data());
|
||||
}
|
||||
}
|
||||
num_processed_components += source_att->num_components();
|
||||
}
|
||||
|
||||
// Compute the maximum bit length needed for the kd tree encoding.
|
||||
int num_bits = 0;
|
||||
const uint32_t *data = point_vector[0];
|
||||
for (int i = 0; i < num_points * num_components_; ++i) {
|
||||
if (data[i] > 0) {
|
||||
const int msb = MostSignificantBit(data[i]) + 1;
|
||||
if (msb > num_bits) {
|
||||
num_bits = msb;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
switch (compression_level) {
|
||||
case 6: {
|
||||
DynamicIntegerPointsKdTreeEncoder<6> points_encoder(num_components_);
|
||||
if (!points_encoder.EncodePoints(point_vector.begin(), point_vector.end(),
|
||||
num_bits, out_buffer)) {
|
||||
return false;
|
||||
}
|
||||
break;
|
||||
}
|
||||
case 5: {
|
||||
DynamicIntegerPointsKdTreeEncoder<5> points_encoder(num_components_);
|
||||
if (!points_encoder.EncodePoints(point_vector.begin(), point_vector.end(),
|
||||
num_bits, out_buffer)) {
|
||||
return false;
|
||||
}
|
||||
break;
|
||||
}
|
||||
case 4: {
|
||||
DynamicIntegerPointsKdTreeEncoder<4> points_encoder(num_components_);
|
||||
if (!points_encoder.EncodePoints(point_vector.begin(), point_vector.end(),
|
||||
num_bits, out_buffer)) {
|
||||
return false;
|
||||
}
|
||||
break;
|
||||
}
|
||||
case 3: {
|
||||
DynamicIntegerPointsKdTreeEncoder<3> points_encoder(num_components_);
|
||||
if (!points_encoder.EncodePoints(point_vector.begin(), point_vector.end(),
|
||||
num_bits, out_buffer)) {
|
||||
return false;
|
||||
}
|
||||
break;
|
||||
}
|
||||
case 2: {
|
||||
DynamicIntegerPointsKdTreeEncoder<2> points_encoder(num_components_);
|
||||
if (!points_encoder.EncodePoints(point_vector.begin(), point_vector.end(),
|
||||
num_bits, out_buffer)) {
|
||||
return false;
|
||||
}
|
||||
break;
|
||||
}
|
||||
case 1: {
|
||||
DynamicIntegerPointsKdTreeEncoder<1> points_encoder(num_components_);
|
||||
if (!points_encoder.EncodePoints(point_vector.begin(), point_vector.end(),
|
||||
num_bits, out_buffer)) {
|
||||
return false;
|
||||
}
|
||||
break;
|
||||
}
|
||||
case 0: {
|
||||
DynamicIntegerPointsKdTreeEncoder<0> points_encoder(num_components_);
|
||||
if (!points_encoder.EncodePoints(point_vector.begin(), point_vector.end(),
|
||||
num_bits, out_buffer)) {
|
||||
return false;
|
||||
}
|
||||
break;
|
||||
}
|
||||
// Compression level and/or encoding speed seem wrong.
|
||||
default:
|
||||
return false;
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
} // namespace draco
|
||||
|
|
@ -0,0 +1,51 @@
|
|||
// Copyright 2016 The Draco Authors.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
//
|
||||
#ifndef DRACO_COMPRESSION_ATTRIBUTES_KD_TREE_ATTRIBUTES_ENCODER_H_
|
||||
#define DRACO_COMPRESSION_ATTRIBUTES_KD_TREE_ATTRIBUTES_ENCODER_H_
|
||||
|
||||
#include "draco/attributes/attribute_quantization_transform.h"
|
||||
#include "draco/compression/attributes/attributes_encoder.h"
|
||||
#include "draco/compression/config/compression_shared.h"
|
||||
|
||||
namespace draco {
|
||||
|
||||
// Encodes all attributes of a given PointCloud using one of the available
|
||||
// Kd-tree compression methods.
|
||||
// See compression/point_cloud/point_cloud_kd_tree_encoder.h for more details.
|
||||
class KdTreeAttributesEncoder : public AttributesEncoder {
|
||||
public:
|
||||
KdTreeAttributesEncoder();
|
||||
explicit KdTreeAttributesEncoder(int att_id);
|
||||
|
||||
uint8_t GetUniqueId() const override { return KD_TREE_ATTRIBUTE_ENCODER; }
|
||||
|
||||
protected:
|
||||
bool TransformAttributesToPortableFormat() override;
|
||||
bool EncodePortableAttributes(EncoderBuffer *out_buffer) override;
|
||||
bool EncodeDataNeededByPortableTransforms(EncoderBuffer *out_buffer) override;
|
||||
|
||||
private:
|
||||
std::vector<AttributeQuantizationTransform>
|
||||
attribute_quantization_transforms_;
|
||||
// Min signed values are used to transform signed integers into unsigned ones
|
||||
// (by subtracting the min signed value for each component).
|
||||
std::vector<int32_t> min_signed_values_;
|
||||
std::vector<std::unique_ptr<PointAttribute>> quantized_portable_attributes_;
|
||||
int num_components_;
|
||||
};
|
||||
|
||||
} // namespace draco
|
||||
|
||||
#endif // DRACO_COMPRESSION_ATTRIBUTES_KD_TREE_ATTRIBUTES_ENCODER_H_
|
||||
|
|
@ -0,0 +1,28 @@
|
|||
// Copyright 2016 The Draco Authors.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
//
|
||||
#ifndef DRACO_COMPRESSION_ATTRIBUTES_KD_TREE_ATTRIBUTES_SHARED_H_
|
||||
#define DRACO_COMPRESSION_ATTRIBUTES_KD_TREE_ATTRIBUTES_SHARED_H_
|
||||
|
||||
namespace draco {
|
||||
|
||||
// Defines types of kD-tree compression
|
||||
enum KdTreeAttributesEncodingMethod {
|
||||
kKdTreeQuantizationEncoding = 0,
|
||||
kKdTreeIntegerEncoding
|
||||
};
|
||||
|
||||
} // namespace draco
|
||||
|
||||
#endif // DRACO_COMPRESSION_ATTRIBUTES_KD_TREE_ATTRIBUTES_SHARED_H_
|
||||
|
|
@ -0,0 +1,51 @@
|
|||
// Copyright 2016 The Draco Authors.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
//
|
||||
#ifndef DRACO_COMPRESSION_ATTRIBUTES_LINEAR_SEQUENCER_H_
|
||||
#define DRACO_COMPRESSION_ATTRIBUTES_LINEAR_SEQUENCER_H_
|
||||
|
||||
#include "draco/compression/attributes/points_sequencer.h"
|
||||
|
||||
namespace draco {
|
||||
|
||||
// A simple sequencer that generates a linear sequence [0, num_points - 1].
|
||||
// I.e., the order of the points is preserved for the input data.
|
||||
class LinearSequencer : public PointsSequencer {
|
||||
public:
|
||||
explicit LinearSequencer(int32_t num_points) : num_points_(num_points) {}
|
||||
|
||||
bool UpdatePointToAttributeIndexMapping(PointAttribute *attribute) override {
|
||||
attribute->SetIdentityMapping();
|
||||
return true;
|
||||
}
|
||||
|
||||
protected:
|
||||
bool GenerateSequenceInternal() override {
|
||||
if (num_points_ < 0) {
|
||||
return false;
|
||||
}
|
||||
out_point_ids()->resize(num_points_);
|
||||
for (int i = 0; i < num_points_; ++i) {
|
||||
out_point_ids()->at(i) = PointIndex(i);
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
private:
|
||||
int32_t num_points_;
|
||||
};
|
||||
|
||||
} // namespace draco
|
||||
|
||||
#endif // DRACO_COMPRESSION_ATTRIBUTES_LINEAR_SEQUENCER_H_
|
||||
|
|
@ -0,0 +1,58 @@
|
|||
// Copyright 2016 The Draco Authors.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
//
|
||||
#ifndef DRACO_COMPRESSION_ATTRIBUTES_MESH_ATTRIBUTE_INDICES_ENCODING_DATA_H_
|
||||
#define DRACO_COMPRESSION_ATTRIBUTES_MESH_ATTRIBUTE_INDICES_ENCODING_DATA_H_
|
||||
|
||||
#include <inttypes.h>
|
||||
|
||||
#include <vector>
|
||||
|
||||
#include "draco/attributes/geometry_indices.h"
|
||||
|
||||
namespace draco {
|
||||
|
||||
// Data used for encoding and decoding of mesh attributes.
|
||||
struct MeshAttributeIndicesEncodingData {
|
||||
MeshAttributeIndicesEncodingData() : num_values(0) {}
|
||||
|
||||
void Init(int num_vertices) {
|
||||
vertex_to_encoded_attribute_value_index_map.resize(num_vertices);
|
||||
|
||||
// We expect to store one value for each vertex.
|
||||
encoded_attribute_value_index_to_corner_map.reserve(num_vertices);
|
||||
}
|
||||
|
||||
// Array for storing the corner ids in the order their associated attribute
|
||||
// entries were encoded/decoded. For every encoded attribute value entry we
|
||||
// store exactly one corner. I.e., this is the mapping between an encoded
|
||||
// attribute entry ids and corner ids. This map is needed for example by
|
||||
// prediction schemes. Note that not all corners are included in this map,
|
||||
// e.g., if multiple corners share the same attribute value, only one of these
|
||||
// corners will be usually included.
|
||||
std::vector<CornerIndex> encoded_attribute_value_index_to_corner_map;
|
||||
|
||||
// Map for storing encoding order of attribute entries for each vertex.
|
||||
// i.e. Mapping between vertices and their corresponding attribute entry ids
|
||||
// that are going to be used by the decoder.
|
||||
// -1 if an attribute entry hasn't been encoded/decoded yet.
|
||||
std::vector<int32_t> vertex_to_encoded_attribute_value_index_map;
|
||||
|
||||
// Total number of encoded/decoded attribute entries.
|
||||
int num_values;
|
||||
};
|
||||
|
||||
} // namespace draco
|
||||
|
||||
#endif // DRACO_COMPRESSION_ATTRIBUTES_MESH_ATTRIBUTE_INDICES_ENCODING_DATA_H_
|
||||
|
|
@ -0,0 +1,360 @@
|
|||
// Copyright 2016 The Draco Authors.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
//
|
||||
// Utilities for converting unit vectors to octahedral coordinates and back.
|
||||
// For more details about octahedral coordinates, see for example Cigolle
|
||||
// et al.'14 “A Survey of Efficient Representations for Independent Unit
|
||||
// Vectors”.
|
||||
//
|
||||
// In short this is motivated by an octahedron inscribed into a sphere. The
|
||||
// direction of the normal vector can be defined by a point on the octahedron.
|
||||
// On the right hemisphere (x > 0) this point is projected onto the x = 0 plane,
|
||||
// that is, the right side of the octahedron forms a diamond like shape. The
|
||||
// left side of the octahedron is also projected onto the x = 0 plane, however,
|
||||
// in this case we flap the triangles of the diamond outward. Afterwards we
|
||||
// shift the resulting square such that all values are positive.
|
||||
//
|
||||
// Important values in this file:
|
||||
// * q: number of quantization bits
|
||||
// * max_quantized_value: the max value representable with q bits (odd)
|
||||
// * max_value: max value of the diamond = max_quantized_value - 1 (even)
|
||||
// * center_value: center of the diamond after shift
|
||||
//
|
||||
// Note that the parameter space is somewhat periodic, e.g. (0, 0) ==
|
||||
// (max_value, max_value), which is also why the diamond is one smaller than the
|
||||
// maximal representable value in order to have an odd range of values.
|
||||
|
||||
#ifndef DRACO_COMPRESSION_ATTRIBUTES_NORMAL_COMPRESSION_UTILS_H_
|
||||
#define DRACO_COMPRESSION_ATTRIBUTES_NORMAL_COMPRESSION_UTILS_H_
|
||||
|
||||
#include <inttypes.h>
|
||||
|
||||
#include <algorithm>
|
||||
#include <cmath>
|
||||
|
||||
#include "draco/core/macros.h"
|
||||
|
||||
namespace draco {
|
||||
|
||||
class OctahedronToolBox {
|
||||
public:
|
||||
OctahedronToolBox()
|
||||
: quantization_bits_(-1),
|
||||
max_quantized_value_(-1),
|
||||
max_value_(-1),
|
||||
dequantization_scale_(1.f),
|
||||
center_value_(-1) {}
|
||||
|
||||
bool SetQuantizationBits(int32_t q) {
|
||||
if (q < 2 || q > 30) {
|
||||
return false;
|
||||
}
|
||||
quantization_bits_ = q;
|
||||
max_quantized_value_ = (1 << quantization_bits_) - 1;
|
||||
max_value_ = max_quantized_value_ - 1;
|
||||
dequantization_scale_ = 2.f / max_value_;
|
||||
center_value_ = max_value_ / 2;
|
||||
return true;
|
||||
}
|
||||
bool IsInitialized() const { return quantization_bits_ != -1; }
|
||||
|
||||
// Convert all edge points in the top left and bottom right quadrants to
|
||||
// their corresponding position in the bottom left and top right quadrants.
|
||||
// Convert all corner edge points to the top right corner.
|
||||
inline void CanonicalizeOctahedralCoords(int32_t s, int32_t t, int32_t *out_s,
|
||||
int32_t *out_t) const {
|
||||
if ((s == 0 && t == 0) || (s == 0 && t == max_value_) ||
|
||||
(s == max_value_ && t == 0)) {
|
||||
s = max_value_;
|
||||
t = max_value_;
|
||||
} else if (s == 0 && t > center_value_) {
|
||||
t = center_value_ - (t - center_value_);
|
||||
} else if (s == max_value_ && t < center_value_) {
|
||||
t = center_value_ + (center_value_ - t);
|
||||
} else if (t == max_value_ && s < center_value_) {
|
||||
s = center_value_ + (center_value_ - s);
|
||||
} else if (t == 0 && s > center_value_) {
|
||||
s = center_value_ - (s - center_value_);
|
||||
}
|
||||
|
||||
*out_s = s;
|
||||
*out_t = t;
|
||||
}
|
||||
|
||||
// Converts an integer vector to octahedral coordinates.
|
||||
// Precondition: |int_vec| abs sum must equal center value.
|
||||
inline void IntegerVectorToQuantizedOctahedralCoords(const int32_t *int_vec,
|
||||
int32_t *out_s,
|
||||
int32_t *out_t) const {
|
||||
DRACO_DCHECK_EQ(
|
||||
std::abs(int_vec[0]) + std::abs(int_vec[1]) + std::abs(int_vec[2]),
|
||||
center_value_);
|
||||
int32_t s, t;
|
||||
if (int_vec[0] >= 0) {
|
||||
// Right hemisphere.
|
||||
s = (int_vec[1] + center_value_);
|
||||
t = (int_vec[2] + center_value_);
|
||||
} else {
|
||||
// Left hemisphere.
|
||||
if (int_vec[1] < 0) {
|
||||
s = std::abs(int_vec[2]);
|
||||
} else {
|
||||
s = (max_value_ - std::abs(int_vec[2]));
|
||||
}
|
||||
if (int_vec[2] < 0) {
|
||||
t = std::abs(int_vec[1]);
|
||||
} else {
|
||||
t = (max_value_ - std::abs(int_vec[1]));
|
||||
}
|
||||
}
|
||||
CanonicalizeOctahedralCoords(s, t, out_s, out_t);
|
||||
}
|
||||
|
||||
template <class T>
|
||||
void FloatVectorToQuantizedOctahedralCoords(const T *vector, int32_t *out_s,
|
||||
int32_t *out_t) const {
|
||||
const double abs_sum = std::abs(static_cast<double>(vector[0])) +
|
||||
std::abs(static_cast<double>(vector[1])) +
|
||||
std::abs(static_cast<double>(vector[2]));
|
||||
|
||||
// Adjust values such that abs sum equals 1.
|
||||
double scaled_vector[3];
|
||||
if (abs_sum > 1e-6) {
|
||||
// Scale needed to project the vector to the surface of an octahedron.
|
||||
const double scale = 1.0 / abs_sum;
|
||||
scaled_vector[0] = vector[0] * scale;
|
||||
scaled_vector[1] = vector[1] * scale;
|
||||
scaled_vector[2] = vector[2] * scale;
|
||||
} else {
|
||||
scaled_vector[0] = 1.0;
|
||||
scaled_vector[1] = 0;
|
||||
scaled_vector[2] = 0;
|
||||
}
|
||||
|
||||
// Scale vector such that the sum equals the center value.
|
||||
int32_t int_vec[3];
|
||||
int_vec[0] =
|
||||
static_cast<int32_t>(floor(scaled_vector[0] * center_value_ + 0.5));
|
||||
int_vec[1] =
|
||||
static_cast<int32_t>(floor(scaled_vector[1] * center_value_ + 0.5));
|
||||
// Make sure the sum is exactly the center value.
|
||||
int_vec[2] = center_value_ - std::abs(int_vec[0]) - std::abs(int_vec[1]);
|
||||
if (int_vec[2] < 0) {
|
||||
// If the sum of first two coordinates is too large, we need to decrease
|
||||
// the length of one of the coordinates.
|
||||
if (int_vec[1] > 0) {
|
||||
int_vec[1] += int_vec[2];
|
||||
} else {
|
||||
int_vec[1] -= int_vec[2];
|
||||
}
|
||||
int_vec[2] = 0;
|
||||
}
|
||||
// Take care of the sign.
|
||||
if (scaled_vector[2] < 0) {
|
||||
int_vec[2] *= -1;
|
||||
}
|
||||
|
||||
IntegerVectorToQuantizedOctahedralCoords(int_vec, out_s, out_t);
|
||||
}
|
||||
|
||||
// Normalize |vec| such that its abs sum is equal to the center value;
|
||||
template <class T>
|
||||
void CanonicalizeIntegerVector(T *vec) const {
|
||||
static_assert(std::is_integral<T>::value, "T must be an integral type.");
|
||||
static_assert(std::is_signed<T>::value, "T must be a signed type.");
|
||||
const int64_t abs_sum = static_cast<int64_t>(std::abs(vec[0])) +
|
||||
static_cast<int64_t>(std::abs(vec[1])) +
|
||||
static_cast<int64_t>(std::abs(vec[2]));
|
||||
|
||||
if (abs_sum == 0) {
|
||||
vec[0] = center_value_; // vec[1] == v[2] == 0
|
||||
} else {
|
||||
vec[0] =
|
||||
(static_cast<int64_t>(vec[0]) * static_cast<int64_t>(center_value_)) /
|
||||
abs_sum;
|
||||
vec[1] =
|
||||
(static_cast<int64_t>(vec[1]) * static_cast<int64_t>(center_value_)) /
|
||||
abs_sum;
|
||||
if (vec[2] >= 0) {
|
||||
vec[2] = center_value_ - std::abs(vec[0]) - std::abs(vec[1]);
|
||||
} else {
|
||||
vec[2] = -(center_value_ - std::abs(vec[0]) - std::abs(vec[1]));
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
inline void QuantizedOctahedralCoordsToUnitVector(int32_t in_s, int32_t in_t,
|
||||
float *out_vector) const {
|
||||
OctahedralCoordsToUnitVector(in_s * dequantization_scale_ - 1.f,
|
||||
in_t * dequantization_scale_ - 1.f,
|
||||
out_vector);
|
||||
}
|
||||
|
||||
// |s| and |t| are expected to be signed values.
|
||||
inline bool IsInDiamond(const int32_t &s, const int32_t &t) const {
|
||||
// Expect center already at origin.
|
||||
DRACO_DCHECK_LE(s, center_value_);
|
||||
DRACO_DCHECK_LE(t, center_value_);
|
||||
DRACO_DCHECK_GE(s, -center_value_);
|
||||
DRACO_DCHECK_GE(t, -center_value_);
|
||||
return std::abs(s) + std::abs(t) <= center_value_;
|
||||
}
|
||||
|
||||
void InvertDiamond(int32_t *s, int32_t *t) const {
|
||||
// Expect center already at origin.
|
||||
DRACO_DCHECK_LE(*s, center_value_);
|
||||
DRACO_DCHECK_LE(*t, center_value_);
|
||||
DRACO_DCHECK_GE(*s, -center_value_);
|
||||
DRACO_DCHECK_GE(*t, -center_value_);
|
||||
int32_t sign_s = 0;
|
||||
int32_t sign_t = 0;
|
||||
if (*s >= 0 && *t >= 0) {
|
||||
sign_s = 1;
|
||||
sign_t = 1;
|
||||
} else if (*s <= 0 && *t <= 0) {
|
||||
sign_s = -1;
|
||||
sign_t = -1;
|
||||
} else {
|
||||
sign_s = (*s > 0) ? 1 : -1;
|
||||
sign_t = (*t > 0) ? 1 : -1;
|
||||
}
|
||||
|
||||
const int32_t corner_point_s = sign_s * center_value_;
|
||||
const int32_t corner_point_t = sign_t * center_value_;
|
||||
*s = 2 * *s - corner_point_s;
|
||||
*t = 2 * *t - corner_point_t;
|
||||
if (sign_s * sign_t >= 0) {
|
||||
int32_t temp = *s;
|
||||
*s = -*t;
|
||||
*t = -temp;
|
||||
} else {
|
||||
std::swap(*s, *t);
|
||||
}
|
||||
*s = (*s + corner_point_s) / 2;
|
||||
*t = (*t + corner_point_t) / 2;
|
||||
}
|
||||
|
||||
void InvertDirection(int32_t *s, int32_t *t) const {
|
||||
// Expect center already at origin.
|
||||
DRACO_DCHECK_LE(*s, center_value_);
|
||||
DRACO_DCHECK_LE(*t, center_value_);
|
||||
DRACO_DCHECK_GE(*s, -center_value_);
|
||||
DRACO_DCHECK_GE(*t, -center_value_);
|
||||
*s *= -1;
|
||||
*t *= -1;
|
||||
this->InvertDiamond(s, t);
|
||||
}
|
||||
|
||||
// For correction values.
|
||||
int32_t ModMax(int32_t x) const {
|
||||
if (x > this->center_value()) {
|
||||
return x - this->max_quantized_value();
|
||||
}
|
||||
if (x < -this->center_value()) {
|
||||
return x + this->max_quantized_value();
|
||||
}
|
||||
return x;
|
||||
}
|
||||
|
||||
// For correction values.
|
||||
int32_t MakePositive(int32_t x) const {
|
||||
DRACO_DCHECK_LE(x, this->center_value() * 2);
|
||||
if (x < 0) {
|
||||
return x + this->max_quantized_value();
|
||||
}
|
||||
return x;
|
||||
}
|
||||
|
||||
int32_t quantization_bits() const { return quantization_bits_; }
|
||||
int32_t max_quantized_value() const { return max_quantized_value_; }
|
||||
int32_t max_value() const { return max_value_; }
|
||||
int32_t center_value() const { return center_value_; }
|
||||
|
||||
private:
|
||||
inline void OctahedralCoordsToUnitVector(float in_s_scaled, float in_t_scaled,
|
||||
float *out_vector) const {
|
||||
// Background about the encoding:
|
||||
// A normal is encoded in a normalized space <s, t> depicted below. The
|
||||
// encoding correponds to an octahedron that is unwrapped to a 2D plane.
|
||||
// During encoding, a normal is projected to the surface of the octahedron
|
||||
// and the projection is then unwrapped to the 2D plane. Decoding is the
|
||||
// reverse of this process.
|
||||
// All points in the central diamond are located on triangles on the
|
||||
// right "hemisphere" of the octahedron while all points outside of the
|
||||
// diamond are on the left hemisphere (basically, they would have to be
|
||||
// wrapped along the diagonal edges to form the octahedron). The central
|
||||
// point corresponds to the right most vertex of the octahedron and all
|
||||
// corners of the plane correspond to the left most vertex of the
|
||||
// octahedron.
|
||||
//
|
||||
// t
|
||||
// ^ *-----*-----*
|
||||
// | | /|\ |
|
||||
// | / | \ |
|
||||
// | / | \ |
|
||||
// | / | \ |
|
||||
// *-----*---- *
|
||||
// | \ | / |
|
||||
// | \ | / |
|
||||
// | \ | / |
|
||||
// | \|/ |
|
||||
// *-----*-----* --> s
|
||||
|
||||
// Note that the input |in_s_scaled| and |in_t_scaled| are already scaled to
|
||||
// <-1, 1> range. This way, the central point is at coordinate (0, 0).
|
||||
float y = in_s_scaled;
|
||||
float z = in_t_scaled;
|
||||
|
||||
// Remaining coordinate can be computed by projecting the (y, z) values onto
|
||||
// the surface of the octahedron.
|
||||
const float x = 1.f - abs(y) - abs(z);
|
||||
|
||||
// |x| is essentially a signed distance from the diagonal edges of the
|
||||
// diamond shown on the figure above. It is positive for all points in the
|
||||
// diamond (right hemisphere) and negative for all points outside the
|
||||
// diamond (left hemisphere). For all points on the left hemisphere we need
|
||||
// to update their (y, z) coordinates to account for the wrapping along
|
||||
// the edges of the diamond.
|
||||
float x_offset = -x;
|
||||
x_offset = x_offset < 0 ? 0 : x_offset;
|
||||
|
||||
// This will do nothing for the points on the right hemisphere but it will
|
||||
// mirror the (y, z) location along the nearest diagonal edge of the
|
||||
// diamond.
|
||||
y += y < 0 ? x_offset : -x_offset;
|
||||
z += z < 0 ? x_offset : -x_offset;
|
||||
|
||||
// Normalize the computed vector.
|
||||
const float norm_squared = x * x + y * y + z * z;
|
||||
if (norm_squared < 1e-6) {
|
||||
out_vector[0] = 0;
|
||||
out_vector[1] = 0;
|
||||
out_vector[2] = 0;
|
||||
} else {
|
||||
const float d = 1.0f / std::sqrt(norm_squared);
|
||||
out_vector[0] = x * d;
|
||||
out_vector[1] = y * d;
|
||||
out_vector[2] = z * d;
|
||||
}
|
||||
}
|
||||
|
||||
int32_t quantization_bits_;
|
||||
int32_t max_quantized_value_;
|
||||
int32_t max_value_;
|
||||
float dequantization_scale_;
|
||||
int32_t center_value_;
|
||||
};
|
||||
} // namespace draco
|
||||
|
||||
#endif // DRACO_COMPRESSION_ATTRIBUTES_NORMAL_COMPRESSION_UTILS_H_
|
||||
|
|
@ -0,0 +1,279 @@
|
|||
// Copyright 2018 The Draco Authors.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
//
|
||||
|
||||
#ifndef DRACO_COMPRESSION_ATTRIBUTES_POINT_D_VECTOR_H_
|
||||
#define DRACO_COMPRESSION_ATTRIBUTES_POINT_D_VECTOR_H_
|
||||
|
||||
#include <cstring>
|
||||
#include <memory>
|
||||
#include <vector>
|
||||
|
||||
#include "draco/core/macros.h"
|
||||
|
||||
namespace draco {
|
||||
|
||||
// The main class of this file is PointDVector providing an interface similar to
|
||||
// std::vector<PointD> for arbitrary number of dimensions (without a template
|
||||
// argument). PointDVectorIterator is a random access iterator, which allows for
|
||||
// compatibility with existing algorithms. PseudoPointD provides for a view on
|
||||
// the individual items in a contiguous block of memory, which is compatible
|
||||
// with the swap function and is returned by a dereference of
|
||||
// PointDVectorIterator. Swap functions provide for compatibility/specialization
|
||||
// that allows these classes to work with currently utilized STL functions.
|
||||
|
||||
// This class allows for swap functionality from the RandomIterator
|
||||
// It seems problematic to bring this inside PointDVector due to templating.
|
||||
template <typename internal_t>
|
||||
class PseudoPointD {
|
||||
public:
|
||||
PseudoPointD(internal_t *mem, internal_t dimension)
|
||||
: mem_(mem), dimension_(dimension) {}
|
||||
|
||||
// Specifically copies referenced memory
|
||||
void swap(PseudoPointD &other) noexcept {
|
||||
for (internal_t dim = 0; dim < dimension_; dim += 1) {
|
||||
std::swap(mem_[dim], other.mem_[dim]);
|
||||
}
|
||||
}
|
||||
|
||||
PseudoPointD(const PseudoPointD &other)
|
||||
: mem_(other.mem_), dimension_(other.dimension_) {}
|
||||
|
||||
const internal_t &operator[](const size_t &n) const {
|
||||
DRACO_DCHECK_LT(n, dimension_);
|
||||
return mem_[n];
|
||||
}
|
||||
internal_t &operator[](const size_t &n) {
|
||||
DRACO_DCHECK_LT(n, dimension_);
|
||||
return mem_[n];
|
||||
}
|
||||
|
||||
bool operator==(const PseudoPointD &other) const {
|
||||
for (auto dim = 0; dim < dimension_; dim += 1) {
|
||||
if (mem_[dim] != other.mem_[dim]) {
|
||||
return false;
|
||||
}
|
||||
}
|
||||
return true;
|
||||
}
|
||||
bool operator!=(const PseudoPointD &other) const {
|
||||
return !this->operator==(other);
|
||||
}
|
||||
|
||||
private:
|
||||
internal_t *const mem_;
|
||||
const internal_t dimension_;
|
||||
};
|
||||
|
||||
// It seems problematic to bring this inside PointDVector due to templating.
|
||||
template <typename internal_t>
|
||||
void swap(draco::PseudoPointD<internal_t> &&a,
|
||||
draco::PseudoPointD<internal_t> &&b) noexcept {
|
||||
a.swap(b);
|
||||
};
|
||||
template <typename internal_t>
|
||||
void swap(draco::PseudoPointD<internal_t> &a,
|
||||
draco::PseudoPointD<internal_t> &b) noexcept {
|
||||
a.swap(b);
|
||||
};
|
||||
|
||||
template <typename internal_t>
|
||||
class PointDVector {
|
||||
public:
|
||||
PointDVector(const uint32_t n_items, const uint32_t dimensionality)
|
||||
: n_items_(n_items),
|
||||
dimensionality_(dimensionality),
|
||||
item_size_bytes_(dimensionality * sizeof(internal_t)),
|
||||
data_(n_items * dimensionality),
|
||||
data0_(data_.data()) {}
|
||||
// random access iterator
|
||||
class PointDVectorIterator
|
||||
: public std::iterator<std::random_access_iterator_tag, size_t, size_t> {
|
||||
friend class PointDVector;
|
||||
|
||||
public:
|
||||
// std::iter_swap is called inside of std::partition and needs this
|
||||
// specialized support
|
||||
PseudoPointD<internal_t> operator*() const {
|
||||
return PseudoPointD<internal_t>(vec_->data0_ + item_ * dimensionality_,
|
||||
dimensionality_);
|
||||
}
|
||||
const PointDVectorIterator &operator++() {
|
||||
item_ += 1;
|
||||
return *this;
|
||||
}
|
||||
const PointDVectorIterator &operator--() {
|
||||
item_ -= 1;
|
||||
return *this;
|
||||
}
|
||||
PointDVectorIterator operator++(int32_t) {
|
||||
PointDVectorIterator copy(*this);
|
||||
item_ += 1;
|
||||
return copy;
|
||||
}
|
||||
PointDVectorIterator operator--(int32_t) {
|
||||
PointDVectorIterator copy(*this);
|
||||
item_ -= 1;
|
||||
return copy;
|
||||
}
|
||||
PointDVectorIterator &operator=(const PointDVectorIterator &other) {
|
||||
this->item_ = other.item_;
|
||||
return *this;
|
||||
}
|
||||
|
||||
bool operator==(const PointDVectorIterator &ref) const {
|
||||
return item_ == ref.item_;
|
||||
}
|
||||
bool operator!=(const PointDVectorIterator &ref) const {
|
||||
return item_ != ref.item_;
|
||||
}
|
||||
bool operator<(const PointDVectorIterator &ref) const {
|
||||
return item_ < ref.item_;
|
||||
}
|
||||
bool operator>(const PointDVectorIterator &ref) const {
|
||||
return item_ > ref.item_;
|
||||
}
|
||||
bool operator<=(const PointDVectorIterator &ref) const {
|
||||
return item_ <= ref.item_;
|
||||
}
|
||||
bool operator>=(const PointDVectorIterator &ref) const {
|
||||
return item_ >= ref.item_;
|
||||
}
|
||||
|
||||
PointDVectorIterator operator+(const int32_t &add) const {
|
||||
PointDVectorIterator copy(vec_, item_ + add);
|
||||
return copy;
|
||||
}
|
||||
PointDVectorIterator &operator+=(const int32_t &add) {
|
||||
item_ += add;
|
||||
return *this;
|
||||
}
|
||||
PointDVectorIterator operator-(const int32_t &sub) const {
|
||||
PointDVectorIterator copy(vec_, item_ - sub);
|
||||
return copy;
|
||||
}
|
||||
size_t operator-(const PointDVectorIterator &sub) const {
|
||||
return (item_ - sub.item_);
|
||||
}
|
||||
|
||||
PointDVectorIterator &operator-=(const int32_t &sub) {
|
||||
item_ -= sub;
|
||||
return *this;
|
||||
}
|
||||
|
||||
internal_t *operator[](const size_t &n) const {
|
||||
return vec_->data0_ + (item_ + n) * dimensionality_;
|
||||
}
|
||||
|
||||
protected:
|
||||
explicit PointDVectorIterator(PointDVector *vec, size_t start_item)
|
||||
: item_(start_item), vec_(vec), dimensionality_(vec->dimensionality_) {}
|
||||
|
||||
private:
|
||||
size_t item_; // this counts the item that should be referenced.
|
||||
PointDVector *const vec_; // the thing that we're iterating on
|
||||
const uint32_t dimensionality_; // local copy from vec_
|
||||
};
|
||||
|
||||
PointDVectorIterator begin() { return PointDVectorIterator(this, 0); }
|
||||
PointDVectorIterator end() { return PointDVectorIterator(this, n_items_); }
|
||||
|
||||
// operator[] allows for unprotected user-side usage of operator[] on the
|
||||
// return value AS IF it were a natively indexable type like Point3*
|
||||
internal_t *operator[](const uint32_t index) {
|
||||
DRACO_DCHECK_LT(index, n_items_);
|
||||
return data0_ + index * dimensionality_;
|
||||
}
|
||||
const internal_t *operator[](const uint32_t index) const {
|
||||
DRACO_DCHECK_LT(index, n_items_);
|
||||
return data0_ + index * dimensionality_;
|
||||
}
|
||||
|
||||
uint32_t size() const { return n_items_; }
|
||||
size_t GetBufferSize() const { return data_.size(); }
|
||||
|
||||
// copy a single contiguous 'item' from one PointDVector into this one.
|
||||
void CopyItem(const PointDVector &source, const internal_t source_index,
|
||||
const internal_t destination_index) {
|
||||
DRACO_DCHECK(&source != this ||
|
||||
(&source == this && source_index != destination_index));
|
||||
DRACO_DCHECK_LT(destination_index, n_items_);
|
||||
DRACO_DCHECK_LT(source_index, source.n_items_);
|
||||
|
||||
// DRACO_DCHECK_EQ(source.n_items_, n_items_); // not technically necessary
|
||||
DRACO_DCHECK_EQ(source.dimensionality_, dimensionality_);
|
||||
|
||||
const internal_t *ref = source[source_index];
|
||||
internal_t *const dest = this->operator[](destination_index);
|
||||
std::memcpy(dest, ref, item_size_bytes_);
|
||||
}
|
||||
|
||||
// Copy data directly off of an attribute buffer interleaved into internal
|
||||
// memory.
|
||||
void CopyAttribute(
|
||||
// The dimensionality of the attribute being integrated
|
||||
const internal_t attribute_dimensionality,
|
||||
// The offset in dimensions to insert this attribute.
|
||||
const internal_t offset_dimensionality, const internal_t index,
|
||||
// The direct pointer to the data
|
||||
const void *const attribute_item_data) {
|
||||
// chunk copy
|
||||
const size_t copy_size = sizeof(internal_t) * attribute_dimensionality;
|
||||
|
||||
// a multiply and add can be optimized away with an iterator
|
||||
std::memcpy(data0_ + index * dimensionality_ + offset_dimensionality,
|
||||
attribute_item_data, copy_size);
|
||||
}
|
||||
// Copy data off of a contiguous buffer interleaved into internal memory
|
||||
void CopyAttribute(
|
||||
// The dimensionality of the attribute being integrated
|
||||
const internal_t attribute_dimensionality,
|
||||
// The offset in dimensions to insert this attribute.
|
||||
const internal_t offset_dimensionality,
|
||||
const internal_t *const attribute_mem) {
|
||||
DRACO_DCHECK_LT(offset_dimensionality,
|
||||
dimensionality_ - attribute_dimensionality);
|
||||
// degenerate case block copy the whole buffer.
|
||||
if (dimensionality_ == attribute_dimensionality) {
|
||||
DRACO_DCHECK_EQ(offset_dimensionality, 0);
|
||||
const size_t copy_size =
|
||||
sizeof(internal_t) * attribute_dimensionality * n_items_;
|
||||
std::memcpy(data0_, attribute_mem, copy_size);
|
||||
} else { // chunk copy
|
||||
const size_t copy_size = sizeof(internal_t) * attribute_dimensionality;
|
||||
internal_t *internal_data;
|
||||
const internal_t *attribute_data;
|
||||
internal_t item;
|
||||
for (internal_data = data0_ + offset_dimensionality,
|
||||
attribute_data = attribute_mem, item = 0;
|
||||
item < n_items_; internal_data += dimensionality_,
|
||||
attribute_data += attribute_dimensionality, item += 1) {
|
||||
std::memcpy(internal_data, attribute_data, copy_size);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
private:
|
||||
// internal parameters.
|
||||
const uint32_t n_items_;
|
||||
const uint32_t dimensionality_; // The dimension of the points in the buffer
|
||||
const uint32_t item_size_bytes_;
|
||||
std::vector<internal_t> data_; // contiguously stored data. Never resized.
|
||||
internal_t *const data0_; // raw pointer to base data.
|
||||
};
|
||||
|
||||
} // namespace draco
|
||||
|
||||
#endif // DRACO_COMPRESSION_ATTRIBUTES_POINT_D_VECTOR_H_
|
||||
|
|
@ -0,0 +1,360 @@
|
|||
// Copyright 2018 The Draco Authors.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
//
|
||||
#include "draco/compression/attributes/point_d_vector.h"
|
||||
|
||||
#include "draco/compression/point_cloud/algorithms/point_cloud_types.h"
|
||||
#include "draco/core/draco_test_base.h"
|
||||
|
||||
namespace draco {
|
||||
|
||||
class PointDVectorTest : public ::testing::Test {
|
||||
protected:
|
||||
template <typename PT>
|
||||
void TestIntegrity() {}
|
||||
template <typename PT>
|
||||
void TestSize() {
|
||||
for (uint32_t n_items = 0; n_items <= 10; ++n_items) {
|
||||
for (uint32_t dimensionality = 1; dimensionality <= 10;
|
||||
++dimensionality) {
|
||||
draco::PointDVector<PT> var(n_items, dimensionality);
|
||||
ASSERT_EQ(n_items, var.size());
|
||||
ASSERT_EQ(n_items * dimensionality, var.GetBufferSize());
|
||||
}
|
||||
}
|
||||
}
|
||||
template <typename PT>
|
||||
void TestContentsContiguous() {
|
||||
for (uint32_t n_items = 1; n_items <= 1000; n_items *= 10) {
|
||||
for (uint32_t dimensionality = 1; dimensionality < 10;
|
||||
dimensionality += 2) {
|
||||
for (uint32_t att_dimensionality = 1;
|
||||
att_dimensionality <= dimensionality; att_dimensionality += 2) {
|
||||
for (uint32_t offset_dimensionality = 0;
|
||||
offset_dimensionality < dimensionality - att_dimensionality;
|
||||
++offset_dimensionality) {
|
||||
PointDVector<PT> var(n_items, dimensionality);
|
||||
|
||||
std::vector<PT> att(n_items * att_dimensionality);
|
||||
for (PT val = 0; val < n_items; val += 1) {
|
||||
for (PT att_dim = 0; att_dim < att_dimensionality; att_dim += 1) {
|
||||
att[val * att_dimensionality + att_dim] = val;
|
||||
}
|
||||
}
|
||||
const PT *const attribute_data = att.data();
|
||||
|
||||
var.CopyAttribute(att_dimensionality, offset_dimensionality,
|
||||
attribute_data);
|
||||
|
||||
for (PT val = 0; val < n_items; val += 1) {
|
||||
for (PT att_dim = 0; att_dim < att_dimensionality; att_dim += 1) {
|
||||
ASSERT_EQ(var[val][offset_dimensionality + att_dim], val);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
template <typename PT>
|
||||
void TestContentsDiscrete() {
|
||||
for (uint32_t n_items = 1; n_items <= 1000; n_items *= 10) {
|
||||
for (uint32_t dimensionality = 1; dimensionality < 10;
|
||||
dimensionality += 2) {
|
||||
for (uint32_t att_dimensionality = 1;
|
||||
att_dimensionality <= dimensionality; att_dimensionality += 2) {
|
||||
for (uint32_t offset_dimensionality = 0;
|
||||
offset_dimensionality < dimensionality - att_dimensionality;
|
||||
++offset_dimensionality) {
|
||||
PointDVector<PT> var(n_items, dimensionality);
|
||||
|
||||
std::vector<PT> att(n_items * att_dimensionality);
|
||||
for (PT val = 0; val < n_items; val += 1) {
|
||||
for (PT att_dim = 0; att_dim < att_dimensionality; att_dim += 1) {
|
||||
att[val * att_dimensionality + att_dim] = val;
|
||||
}
|
||||
}
|
||||
const PT *const attribute_data = att.data();
|
||||
|
||||
for (PT item = 0; item < n_items; item += 1) {
|
||||
var.CopyAttribute(att_dimensionality, offset_dimensionality, item,
|
||||
attribute_data + item * att_dimensionality);
|
||||
}
|
||||
|
||||
for (PT val = 0; val < n_items; val += 1) {
|
||||
for (PT att_dim = 0; att_dim < att_dimensionality; att_dim += 1) {
|
||||
ASSERT_EQ(var[val][offset_dimensionality + att_dim], val);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
template <typename PT>
|
||||
void TestContentsCopy() {
|
||||
for (uint32_t n_items = 1; n_items <= 1000; n_items *= 10) {
|
||||
for (uint32_t dimensionality = 1; dimensionality < 10;
|
||||
dimensionality += 2) {
|
||||
for (uint32_t att_dimensionality = 1;
|
||||
att_dimensionality <= dimensionality; att_dimensionality += 2) {
|
||||
for (uint32_t offset_dimensionality = 0;
|
||||
offset_dimensionality < dimensionality - att_dimensionality;
|
||||
++offset_dimensionality) {
|
||||
PointDVector<PT> var(n_items, dimensionality);
|
||||
PointDVector<PT> dest(n_items, dimensionality);
|
||||
|
||||
std::vector<PT> att(n_items * att_dimensionality);
|
||||
for (PT val = 0; val < n_items; val += 1) {
|
||||
for (PT att_dim = 0; att_dim < att_dimensionality; att_dim += 1) {
|
||||
att[val * att_dimensionality + att_dim] = val;
|
||||
}
|
||||
}
|
||||
const PT *const attribute_data = att.data();
|
||||
|
||||
var.CopyAttribute(att_dimensionality, offset_dimensionality,
|
||||
attribute_data);
|
||||
|
||||
for (PT item = 0; item < n_items; item += 1) {
|
||||
dest.CopyItem(var, item, item);
|
||||
}
|
||||
|
||||
for (PT val = 0; val < n_items; val += 1) {
|
||||
for (PT att_dim = 0; att_dim < att_dimensionality; att_dim += 1) {
|
||||
ASSERT_EQ(var[val][offset_dimensionality + att_dim], val);
|
||||
ASSERT_EQ(dest[val][offset_dimensionality + att_dim], val);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
template <typename PT>
|
||||
void TestIterator() {
|
||||
for (uint32_t n_items = 1; n_items <= 1000; n_items *= 10) {
|
||||
for (uint32_t dimensionality = 1; dimensionality < 10;
|
||||
dimensionality += 2) {
|
||||
for (uint32_t att_dimensionality = 1;
|
||||
att_dimensionality <= dimensionality; att_dimensionality += 2) {
|
||||
for (uint32_t offset_dimensionality = 0;
|
||||
offset_dimensionality < dimensionality - att_dimensionality;
|
||||
++offset_dimensionality) {
|
||||
PointDVector<PT> var(n_items, dimensionality);
|
||||
PointDVector<PT> dest(n_items, dimensionality);
|
||||
|
||||
std::vector<PT> att(n_items * att_dimensionality);
|
||||
for (PT val = 0; val < n_items; val += 1) {
|
||||
for (PT att_dim = 0; att_dim < att_dimensionality; att_dim += 1) {
|
||||
att[val * att_dimensionality + att_dim] = val;
|
||||
}
|
||||
}
|
||||
const PT *const attribute_data = att.data();
|
||||
|
||||
var.CopyAttribute(att_dimensionality, offset_dimensionality,
|
||||
attribute_data);
|
||||
|
||||
for (PT item = 0; item < n_items; item += 1) {
|
||||
dest.CopyItem(var, item, item);
|
||||
}
|
||||
|
||||
auto V0 = var.begin();
|
||||
auto VE = var.end();
|
||||
auto D0 = dest.begin();
|
||||
auto DE = dest.end();
|
||||
|
||||
while (V0 != VE && D0 != DE) {
|
||||
ASSERT_EQ(*D0, *V0); // compare PseudoPointD
|
||||
// verify elemental values
|
||||
for (auto index = 0; index < dimensionality; index += 1) {
|
||||
ASSERT_EQ((*D0)[index], (*V0)[index]);
|
||||
}
|
||||
++V0;
|
||||
++D0;
|
||||
}
|
||||
|
||||
for (PT val = 0; val < n_items; val += 1) {
|
||||
for (PT att_dim = 0; att_dim < att_dimensionality; att_dim += 1) {
|
||||
ASSERT_EQ(var[val][offset_dimensionality + att_dim], val);
|
||||
ASSERT_EQ(dest[val][offset_dimensionality + att_dim], val);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
template <typename PT>
|
||||
void TestPoint3Iterator() {
|
||||
for (uint32_t n_items = 1; n_items <= 1000; n_items *= 10) {
|
||||
const uint32_t dimensionality = 3;
|
||||
// for (uint32_t dimensionality = 1; dimensionality < 10;
|
||||
// dimensionality += 2) {
|
||||
const uint32_t att_dimensionality = 3;
|
||||
// for (uint32_t att_dimensionality = 1;
|
||||
// att_dimensionality <= dimensionality; att_dimensionality += 2) {
|
||||
for (uint32_t offset_dimensionality = 0;
|
||||
offset_dimensionality < dimensionality - att_dimensionality;
|
||||
++offset_dimensionality) {
|
||||
PointDVector<PT> var(n_items, dimensionality);
|
||||
PointDVector<PT> dest(n_items, dimensionality);
|
||||
|
||||
std::vector<PT> att(n_items * att_dimensionality);
|
||||
std::vector<draco::Point3ui> att3(n_items);
|
||||
for (PT val = 0; val < n_items; val += 1) {
|
||||
att3[val][0] = val;
|
||||
att3[val][1] = val;
|
||||
att3[val][2] = val;
|
||||
for (PT att_dim = 0; att_dim < att_dimensionality; att_dim += 1) {
|
||||
att[val * att_dimensionality + att_dim] = val;
|
||||
}
|
||||
}
|
||||
const PT *const attribute_data = att.data();
|
||||
|
||||
var.CopyAttribute(att_dimensionality, offset_dimensionality,
|
||||
attribute_data);
|
||||
|
||||
for (PT item = 0; item < n_items; item += 1) {
|
||||
dest.CopyItem(var, item, item);
|
||||
}
|
||||
|
||||
auto aV0 = att3.begin();
|
||||
auto aVE = att3.end();
|
||||
auto V0 = var.begin();
|
||||
auto VE = var.end();
|
||||
auto D0 = dest.begin();
|
||||
auto DE = dest.end();
|
||||
|
||||
while (aV0 != aVE && V0 != VE && D0 != DE) {
|
||||
ASSERT_EQ(*D0, *V0); // compare PseudoPointD
|
||||
// verify elemental values
|
||||
for (auto index = 0; index < dimensionality; index += 1) {
|
||||
ASSERT_EQ((*D0)[index], (*V0)[index]);
|
||||
ASSERT_EQ((*D0)[index], (*aV0)[index]);
|
||||
ASSERT_EQ((*aV0)[index], (*V0)[index]);
|
||||
}
|
||||
++aV0;
|
||||
++V0;
|
||||
++D0;
|
||||
}
|
||||
|
||||
for (PT val = 0; val < n_items; val += 1) {
|
||||
for (PT att_dim = 0; att_dim < att_dimensionality; att_dim += 1) {
|
||||
ASSERT_EQ(var[val][offset_dimensionality + att_dim], val);
|
||||
ASSERT_EQ(dest[val][offset_dimensionality + att_dim], val);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void TestPseudoPointDSwap() {
|
||||
draco::Point3ui val = {0, 1, 2};
|
||||
draco::Point3ui dest = {10, 11, 12};
|
||||
draco::PseudoPointD<uint32_t> val_src1(&val[0], 3);
|
||||
draco::PseudoPointD<uint32_t> dest_src1(&dest[0], 3);
|
||||
|
||||
ASSERT_EQ(val_src1[0], 0);
|
||||
ASSERT_EQ(val_src1[1], 1);
|
||||
ASSERT_EQ(val_src1[2], 2);
|
||||
ASSERT_EQ(dest_src1[0], 10);
|
||||
ASSERT_EQ(dest_src1[1], 11);
|
||||
ASSERT_EQ(dest_src1[2], 12);
|
||||
|
||||
ASSERT_NE(val_src1, dest_src1);
|
||||
|
||||
swap(val_src1, dest_src1);
|
||||
|
||||
ASSERT_EQ(dest_src1[0], 0);
|
||||
ASSERT_EQ(dest_src1[1], 1);
|
||||
ASSERT_EQ(dest_src1[2], 2);
|
||||
ASSERT_EQ(val_src1[0], 10);
|
||||
ASSERT_EQ(val_src1[1], 11);
|
||||
ASSERT_EQ(val_src1[2], 12);
|
||||
|
||||
ASSERT_NE(val_src1, dest_src1);
|
||||
}
|
||||
void TestPseudoPointDEquality() {
|
||||
draco::Point3ui val = {0, 1, 2};
|
||||
draco::Point3ui dest = {0, 1, 2};
|
||||
draco::PseudoPointD<uint32_t> val_src1(&val[0], 3);
|
||||
draco::PseudoPointD<uint32_t> val_src2(&val[0], 3);
|
||||
draco::PseudoPointD<uint32_t> dest_src1(&dest[0], 3);
|
||||
draco::PseudoPointD<uint32_t> dest_src2(&dest[0], 3);
|
||||
|
||||
ASSERT_EQ(val_src1, val_src1);
|
||||
ASSERT_EQ(val_src1, val_src2);
|
||||
ASSERT_EQ(dest_src1, val_src1);
|
||||
ASSERT_EQ(dest_src1, val_src2);
|
||||
ASSERT_EQ(val_src2, val_src1);
|
||||
ASSERT_EQ(val_src2, val_src2);
|
||||
ASSERT_EQ(dest_src2, val_src1);
|
||||
ASSERT_EQ(dest_src2, val_src2);
|
||||
|
||||
for (auto i = 0; i < 3; i++) {
|
||||
ASSERT_EQ(val_src1[i], val_src1[i]);
|
||||
ASSERT_EQ(val_src1[i], val_src2[i]);
|
||||
ASSERT_EQ(dest_src1[i], val_src1[i]);
|
||||
ASSERT_EQ(dest_src1[i], val_src2[i]);
|
||||
ASSERT_EQ(val_src2[i], val_src1[i]);
|
||||
ASSERT_EQ(val_src2[i], val_src2[i]);
|
||||
ASSERT_EQ(dest_src2[i], val_src1[i]);
|
||||
ASSERT_EQ(dest_src2[i], val_src2[i]);
|
||||
}
|
||||
}
|
||||
void TestPseudoPointDInequality() {
|
||||
draco::Point3ui val = {0, 1, 2};
|
||||
draco::Point3ui dest = {1, 2, 3};
|
||||
draco::PseudoPointD<uint32_t> val_src1(&val[0], 3);
|
||||
draco::PseudoPointD<uint32_t> val_src2(&val[0], 3);
|
||||
draco::PseudoPointD<uint32_t> dest_src1(&dest[0], 3);
|
||||
draco::PseudoPointD<uint32_t> dest_src2(&dest[0], 3);
|
||||
|
||||
ASSERT_EQ(val_src1, val_src1);
|
||||
ASSERT_EQ(val_src1, val_src2);
|
||||
ASSERT_NE(dest_src1, val_src1);
|
||||
ASSERT_NE(dest_src1, val_src2);
|
||||
ASSERT_EQ(val_src2, val_src1);
|
||||
ASSERT_EQ(val_src2, val_src2);
|
||||
ASSERT_NE(dest_src2, val_src1);
|
||||
ASSERT_NE(dest_src2, val_src2);
|
||||
|
||||
for (auto i = 0; i < 3; i++) {
|
||||
ASSERT_EQ(val_src1[i], val_src1[i]);
|
||||
ASSERT_EQ(val_src1[i], val_src2[i]);
|
||||
ASSERT_NE(dest_src1[i], val_src1[i]);
|
||||
ASSERT_NE(dest_src1[i], val_src2[i]);
|
||||
ASSERT_EQ(val_src2[i], val_src1[i]);
|
||||
ASSERT_EQ(val_src2[i], val_src2[i]);
|
||||
ASSERT_NE(dest_src2[i], val_src1[i]);
|
||||
ASSERT_NE(dest_src2[i], val_src2[i]);
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
TEST_F(PointDVectorTest, VectorTest) {
|
||||
TestSize<uint32_t>();
|
||||
TestContentsDiscrete<uint32_t>();
|
||||
TestContentsContiguous<uint32_t>();
|
||||
TestContentsCopy<uint32_t>();
|
||||
TestIterator<uint32_t>();
|
||||
TestPoint3Iterator<uint32_t>();
|
||||
}
|
||||
TEST_F(PointDVectorTest, PseudoPointDTest) {
|
||||
TestPseudoPointDSwap();
|
||||
TestPseudoPointDEquality();
|
||||
TestPseudoPointDInequality();
|
||||
}
|
||||
} // namespace draco
|
||||
|
|
@ -0,0 +1,63 @@
|
|||
// Copyright 2016 The Draco Authors.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
//
|
||||
#ifndef DRACO_COMPRESSION_ATTRIBUTES_POINTS_SEQUENCER_H_
|
||||
#define DRACO_COMPRESSION_ATTRIBUTES_POINTS_SEQUENCER_H_
|
||||
|
||||
#include <vector>
|
||||
|
||||
#include "draco/attributes/point_attribute.h"
|
||||
|
||||
namespace draco {
|
||||
|
||||
// Class for generating a sequence of point ids that can be used to encode
|
||||
// or decode attribute values in a specific order.
|
||||
// See sequential_attribute_encoders/decoders_controller.h for more details.
|
||||
class PointsSequencer {
|
||||
public:
|
||||
PointsSequencer() : out_point_ids_(nullptr) {}
|
||||
virtual ~PointsSequencer() = default;
|
||||
|
||||
// Fills the |out_point_ids| with the generated sequence of point ids.
|
||||
bool GenerateSequence(std::vector<PointIndex> *out_point_ids) {
|
||||
out_point_ids_ = out_point_ids;
|
||||
return GenerateSequenceInternal();
|
||||
}
|
||||
|
||||
// Appends a point to the sequence.
|
||||
void AddPointId(PointIndex point_id) { out_point_ids_->push_back(point_id); }
|
||||
|
||||
// Sets the correct mapping between point ids and value ids. I.e., the inverse
|
||||
// of the |out_point_ids|. In general, |out_point_ids_| does not contain
|
||||
// sufficient information to compute the inverse map, because not all point
|
||||
// ids are necessarily contained within the map.
|
||||
// Must be implemented for sequencers that are used by attribute decoders.
|
||||
virtual bool UpdatePointToAttributeIndexMapping(PointAttribute * /* attr */) {
|
||||
return false;
|
||||
}
|
||||
|
||||
protected:
|
||||
// Method that needs to be implemented by the derived classes. The
|
||||
// implementation is responsible for filling |out_point_ids_| with the valid
|
||||
// sequence of point ids.
|
||||
virtual bool GenerateSequenceInternal() = 0;
|
||||
std::vector<PointIndex> *out_point_ids() const { return out_point_ids_; }
|
||||
|
||||
private:
|
||||
std::vector<PointIndex> *out_point_ids_;
|
||||
};
|
||||
|
||||
} // namespace draco
|
||||
|
||||
#endif // DRACO_COMPRESSION_ATTRIBUTES_POINTS_SEQUENCER_H_
|
||||
|
|
@ -0,0 +1,231 @@
|
|||
// Copyright 2016 The Draco Authors.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
//
|
||||
#ifndef DRACO_COMPRESSION_ATTRIBUTES_PREDICTION_SCHEMES_MESH_PREDICTION_SCHEME_CONSTRAINED_MULTI_PARALLELOGRAM_DECODER_H_
|
||||
#define DRACO_COMPRESSION_ATTRIBUTES_PREDICTION_SCHEMES_MESH_PREDICTION_SCHEME_CONSTRAINED_MULTI_PARALLELOGRAM_DECODER_H_
|
||||
|
||||
#include <algorithm>
|
||||
#include <cmath>
|
||||
|
||||
#include "draco/compression/attributes/prediction_schemes/mesh_prediction_scheme_constrained_multi_parallelogram_shared.h"
|
||||
#include "draco/compression/attributes/prediction_schemes/mesh_prediction_scheme_decoder.h"
|
||||
#include "draco/compression/attributes/prediction_schemes/mesh_prediction_scheme_parallelogram_shared.h"
|
||||
#include "draco/compression/bit_coders/rans_bit_decoder.h"
|
||||
#include "draco/core/varint_decoding.h"
|
||||
#include "draco/draco_features.h"
|
||||
|
||||
namespace draco {
|
||||
|
||||
// Decoder for predictions encoded with the constrained multi-parallelogram
|
||||
// encoder. See the corresponding encoder for more details about the prediction
|
||||
// method.
|
||||
template <typename DataTypeT, class TransformT, class MeshDataT>
|
||||
class MeshPredictionSchemeConstrainedMultiParallelogramDecoder
|
||||
: public MeshPredictionSchemeDecoder<DataTypeT, TransformT, MeshDataT> {
|
||||
public:
|
||||
using CorrType =
|
||||
typename PredictionSchemeDecoder<DataTypeT, TransformT>::CorrType;
|
||||
using CornerTable = typename MeshDataT::CornerTable;
|
||||
|
||||
explicit MeshPredictionSchemeConstrainedMultiParallelogramDecoder(
|
||||
const PointAttribute *attribute)
|
||||
: MeshPredictionSchemeDecoder<DataTypeT, TransformT, MeshDataT>(
|
||||
attribute),
|
||||
selected_mode_(Mode::OPTIMAL_MULTI_PARALLELOGRAM) {}
|
||||
MeshPredictionSchemeConstrainedMultiParallelogramDecoder(
|
||||
const PointAttribute *attribute, const TransformT &transform,
|
||||
const MeshDataT &mesh_data)
|
||||
: MeshPredictionSchemeDecoder<DataTypeT, TransformT, MeshDataT>(
|
||||
attribute, transform, mesh_data),
|
||||
selected_mode_(Mode::OPTIMAL_MULTI_PARALLELOGRAM) {}
|
||||
|
||||
bool ComputeOriginalValues(const CorrType *in_corr, DataTypeT *out_data,
|
||||
int size, int num_components,
|
||||
const PointIndex *entry_to_point_id_map) override;
|
||||
|
||||
bool DecodePredictionData(DecoderBuffer *buffer) override;
|
||||
|
||||
PredictionSchemeMethod GetPredictionMethod() const override {
|
||||
return MESH_PREDICTION_CONSTRAINED_MULTI_PARALLELOGRAM;
|
||||
}
|
||||
|
||||
bool IsInitialized() const override {
|
||||
return this->mesh_data().IsInitialized();
|
||||
}
|
||||
|
||||
private:
|
||||
typedef constrained_multi_parallelogram::Mode Mode;
|
||||
static constexpr int kMaxNumParallelograms =
|
||||
constrained_multi_parallelogram::kMaxNumParallelograms;
|
||||
// Crease edges are used to store whether any given edge should be used for
|
||||
// parallelogram prediction or not. New values are added in the order in which
|
||||
// the edges are processed. For better compression, the flags are stored in
|
||||
// in separate contexts based on the number of available parallelograms at a
|
||||
// given vertex.
|
||||
std::vector<bool> is_crease_edge_[kMaxNumParallelograms];
|
||||
Mode selected_mode_;
|
||||
};
|
||||
|
||||
template <typename DataTypeT, class TransformT, class MeshDataT>
|
||||
bool MeshPredictionSchemeConstrainedMultiParallelogramDecoder<
|
||||
DataTypeT, TransformT, MeshDataT>::
|
||||
ComputeOriginalValues(const CorrType *in_corr, DataTypeT *out_data,
|
||||
int /* size */, int num_components,
|
||||
const PointIndex * /* entry_to_point_id_map */) {
|
||||
this->transform().Init(num_components);
|
||||
|
||||
// Predicted values for all simple parallelograms encountered at any given
|
||||
// vertex.
|
||||
std::vector<DataTypeT> pred_vals[kMaxNumParallelograms];
|
||||
for (int i = 0; i < kMaxNumParallelograms; ++i) {
|
||||
pred_vals[i].resize(num_components, 0);
|
||||
}
|
||||
this->transform().ComputeOriginalValue(pred_vals[0].data(), in_corr,
|
||||
out_data);
|
||||
|
||||
const CornerTable *const table = this->mesh_data().corner_table();
|
||||
const std::vector<int32_t> *const vertex_to_data_map =
|
||||
this->mesh_data().vertex_to_data_map();
|
||||
|
||||
// Current position in the |is_crease_edge_| array for each context.
|
||||
std::vector<int> is_crease_edge_pos(kMaxNumParallelograms, 0);
|
||||
|
||||
// Used to store predicted value for multi-parallelogram prediction.
|
||||
std::vector<DataTypeT> multi_pred_vals(num_components);
|
||||
|
||||
const int corner_map_size =
|
||||
static_cast<int>(this->mesh_data().data_to_corner_map()->size());
|
||||
for (int p = 1; p < corner_map_size; ++p) {
|
||||
const CornerIndex start_corner_id =
|
||||
this->mesh_data().data_to_corner_map()->at(p);
|
||||
|
||||
CornerIndex corner_id(start_corner_id);
|
||||
int num_parallelograms = 0;
|
||||
bool first_pass = true;
|
||||
while (corner_id != kInvalidCornerIndex) {
|
||||
if (ComputeParallelogramPrediction(
|
||||
p, corner_id, table, *vertex_to_data_map, out_data,
|
||||
num_components, &(pred_vals[num_parallelograms][0]))) {
|
||||
// Parallelogram prediction applied and stored in
|
||||
// |pred_vals[num_parallelograms]|
|
||||
++num_parallelograms;
|
||||
// Stop processing when we reach the maximum number of allowed
|
||||
// parallelograms.
|
||||
if (num_parallelograms == kMaxNumParallelograms) {
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
// Proceed to the next corner attached to the vertex. First swing left
|
||||
// and if we reach a boundary, swing right from the start corner.
|
||||
if (first_pass) {
|
||||
corner_id = table->SwingLeft(corner_id);
|
||||
} else {
|
||||
corner_id = table->SwingRight(corner_id);
|
||||
}
|
||||
if (corner_id == start_corner_id) {
|
||||
break;
|
||||
}
|
||||
if (corner_id == kInvalidCornerIndex && first_pass) {
|
||||
first_pass = false;
|
||||
corner_id = table->SwingRight(start_corner_id);
|
||||
}
|
||||
}
|
||||
|
||||
// Check which of the available parallelograms are actually used and compute
|
||||
// the final predicted value.
|
||||
int num_used_parallelograms = 0;
|
||||
if (num_parallelograms > 0) {
|
||||
for (int i = 0; i < num_components; ++i) {
|
||||
multi_pred_vals[i] = 0;
|
||||
}
|
||||
// Check which parallelograms are actually used.
|
||||
for (int i = 0; i < num_parallelograms; ++i) {
|
||||
const int context = num_parallelograms - 1;
|
||||
const int pos = is_crease_edge_pos[context]++;
|
||||
if (is_crease_edge_[context].size() <= pos) {
|
||||
return false;
|
||||
}
|
||||
const bool is_crease = is_crease_edge_[context][pos];
|
||||
if (!is_crease) {
|
||||
++num_used_parallelograms;
|
||||
for (int j = 0; j < num_components; ++j) {
|
||||
multi_pred_vals[j] += pred_vals[i][j];
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
const int dst_offset = p * num_components;
|
||||
if (num_used_parallelograms == 0) {
|
||||
// No parallelogram was valid.
|
||||
// We use the last decoded point as a reference.
|
||||
const int src_offset = (p - 1) * num_components;
|
||||
this->transform().ComputeOriginalValue(
|
||||
out_data + src_offset, in_corr + dst_offset, out_data + dst_offset);
|
||||
} else {
|
||||
// Compute the correction from the predicted value.
|
||||
for (int c = 0; c < num_components; ++c) {
|
||||
multi_pred_vals[c] /= num_used_parallelograms;
|
||||
}
|
||||
this->transform().ComputeOriginalValue(
|
||||
multi_pred_vals.data(), in_corr + dst_offset, out_data + dst_offset);
|
||||
}
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
template <typename DataTypeT, class TransformT, class MeshDataT>
|
||||
bool MeshPredictionSchemeConstrainedMultiParallelogramDecoder<
|
||||
DataTypeT, TransformT, MeshDataT>::DecodePredictionData(DecoderBuffer
|
||||
*buffer) {
|
||||
#ifdef DRACO_BACKWARDS_COMPATIBILITY_SUPPORTED
|
||||
if (buffer->bitstream_version() < DRACO_BITSTREAM_VERSION(2, 2)) {
|
||||
// Decode prediction mode.
|
||||
uint8_t mode;
|
||||
if (!buffer->Decode(&mode)) {
|
||||
return false;
|
||||
}
|
||||
|
||||
if (mode != Mode::OPTIMAL_MULTI_PARALLELOGRAM) {
|
||||
// Unsupported mode.
|
||||
return false;
|
||||
}
|
||||
}
|
||||
#endif
|
||||
|
||||
// Encode selected edges using separate rans bit coder for each context.
|
||||
for (int i = 0; i < kMaxNumParallelograms; ++i) {
|
||||
uint32_t num_flags;
|
||||
if (!DecodeVarint<uint32_t>(&num_flags, buffer)) {
|
||||
return false;
|
||||
}
|
||||
if (num_flags > 0) {
|
||||
is_crease_edge_[i].resize(num_flags);
|
||||
RAnsBitDecoder decoder;
|
||||
if (!decoder.StartDecoding(buffer)) {
|
||||
return false;
|
||||
}
|
||||
for (uint32_t j = 0; j < num_flags; ++j) {
|
||||
is_crease_edge_[i][j] = decoder.DecodeNextBit();
|
||||
}
|
||||
decoder.EndDecoding();
|
||||
}
|
||||
}
|
||||
return MeshPredictionSchemeDecoder<DataTypeT, TransformT,
|
||||
MeshDataT>::DecodePredictionData(buffer);
|
||||
}
|
||||
|
||||
} // namespace draco
|
||||
|
||||
#endif // DRACO_COMPRESSION_ATTRIBUTES_PREDICTION_SCHEMES_MESH_PREDICTION_SCHEME_CONSTRAINED_MULTI_PARALLELOGRAM_DECODER_H_
|
||||
|
|
@ -0,0 +1,414 @@
|
|||
// Copyright 2016 The Draco Authors.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
//
|
||||
#ifndef DRACO_COMPRESSION_ATTRIBUTES_PREDICTION_SCHEMES_MESH_PREDICTION_SCHEME_CONSTRAINED_MULTI_PARALLELOGRAM_ENCODER_H_
|
||||
#define DRACO_COMPRESSION_ATTRIBUTES_PREDICTION_SCHEMES_MESH_PREDICTION_SCHEME_CONSTRAINED_MULTI_PARALLELOGRAM_ENCODER_H_
|
||||
|
||||
#include <algorithm>
|
||||
#include <cmath>
|
||||
|
||||
#include "draco/compression/attributes/prediction_schemes/mesh_prediction_scheme_constrained_multi_parallelogram_shared.h"
|
||||
#include "draco/compression/attributes/prediction_schemes/mesh_prediction_scheme_encoder.h"
|
||||
#include "draco/compression/attributes/prediction_schemes/mesh_prediction_scheme_parallelogram_shared.h"
|
||||
#include "draco/compression/bit_coders/rans_bit_encoder.h"
|
||||
#include "draco/compression/entropy/shannon_entropy.h"
|
||||
#include "draco/core/varint_encoding.h"
|
||||
|
||||
namespace draco {
|
||||
|
||||
// Compared to standard multi-parallelogram, constrained multi-parallelogram can
|
||||
// explicitly select which of the available parallelograms are going to be used
|
||||
// for the prediction by marking crease edges between two triangles. This
|
||||
// requires storing extra data, but it allows the predictor to avoid using
|
||||
// parallelograms that would lead to poor predictions. For improved efficiency,
|
||||
// our current implementation limits the maximum number of used parallelograms
|
||||
// to four, which covers >95% of the cases (on average, there are only two
|
||||
// parallelograms available for any given vertex).
|
||||
// All bits of the explicitly chosen configuration are stored together in a
|
||||
// single context chosen by the total number of parallelograms available to
|
||||
// choose from.
|
||||
template <typename DataTypeT, class TransformT, class MeshDataT>
|
||||
class MeshPredictionSchemeConstrainedMultiParallelogramEncoder
|
||||
: public MeshPredictionSchemeEncoder<DataTypeT, TransformT, MeshDataT> {
|
||||
public:
|
||||
using CorrType =
|
||||
typename PredictionSchemeEncoder<DataTypeT, TransformT>::CorrType;
|
||||
using CornerTable = typename MeshDataT::CornerTable;
|
||||
|
||||
explicit MeshPredictionSchemeConstrainedMultiParallelogramEncoder(
|
||||
const PointAttribute *attribute)
|
||||
: MeshPredictionSchemeEncoder<DataTypeT, TransformT, MeshDataT>(
|
||||
attribute),
|
||||
selected_mode_(Mode::OPTIMAL_MULTI_PARALLELOGRAM) {}
|
||||
MeshPredictionSchemeConstrainedMultiParallelogramEncoder(
|
||||
const PointAttribute *attribute, const TransformT &transform,
|
||||
const MeshDataT &mesh_data)
|
||||
: MeshPredictionSchemeEncoder<DataTypeT, TransformT, MeshDataT>(
|
||||
attribute, transform, mesh_data),
|
||||
selected_mode_(Mode::OPTIMAL_MULTI_PARALLELOGRAM) {}
|
||||
|
||||
bool ComputeCorrectionValues(
|
||||
const DataTypeT *in_data, CorrType *out_corr, int size,
|
||||
int num_components, const PointIndex *entry_to_point_id_map) override;
|
||||
|
||||
bool EncodePredictionData(EncoderBuffer *buffer) override;
|
||||
|
||||
PredictionSchemeMethod GetPredictionMethod() const override {
|
||||
return MESH_PREDICTION_CONSTRAINED_MULTI_PARALLELOGRAM;
|
||||
}
|
||||
|
||||
bool IsInitialized() const override {
|
||||
return this->mesh_data().IsInitialized();
|
||||
}
|
||||
|
||||
private:
|
||||
// Function used to compute number of bits needed to store overhead of the
|
||||
// predictor. In this case, we consider overhead to be all bits that mark
|
||||
// whether a parallelogram should be used for prediction or not. The input
|
||||
// to this method is the total number of parallelograms that were evaluated so
|
||||
// far(total_parallelogram), and the number of parallelograms we decided to
|
||||
// use for prediction (total_used_parallelograms).
|
||||
// Returns number of bits required to store the overhead.
|
||||
int64_t ComputeOverheadBits(int64_t total_used_parallelograms,
|
||||
int64_t total_parallelogram) const {
|
||||
// For now we assume RAns coding for the bits where the total required size
|
||||
// is directly correlated to the binary entropy of the input stream.
|
||||
// TODO(ostava): This should be generalized in case we use other binary
|
||||
// coding scheme.
|
||||
const double entropy = ComputeBinaryShannonEntropy(
|
||||
static_cast<uint32_t>(total_parallelogram),
|
||||
static_cast<uint32_t>(total_used_parallelograms));
|
||||
|
||||
// Round up to the nearest full bit.
|
||||
return static_cast<int64_t>(
|
||||
ceil(static_cast<double>(total_parallelogram) * entropy));
|
||||
}
|
||||
|
||||
// Struct that contains data used for measuring the error of each available
|
||||
// parallelogram configuration.
|
||||
struct Error {
|
||||
Error() : num_bits(0), residual_error(0) {}
|
||||
|
||||
// Primary metric: number of bits required to store the data as a result of
|
||||
// the selected prediction configuration.
|
||||
int num_bits;
|
||||
// Secondary metric: absolute difference of residuals for the given
|
||||
// configuration.
|
||||
int residual_error;
|
||||
|
||||
bool operator<(const Error &e) const {
|
||||
if (num_bits < e.num_bits) {
|
||||
return true;
|
||||
}
|
||||
if (num_bits > e.num_bits) {
|
||||
return false;
|
||||
}
|
||||
return residual_error < e.residual_error;
|
||||
}
|
||||
};
|
||||
|
||||
// Computes error for predicting |predicted_val| instead of |actual_val|.
|
||||
// Error is computed as the number of bits needed to encode the difference
|
||||
// between the values.
|
||||
Error ComputeError(const DataTypeT *predicted_val,
|
||||
const DataTypeT *actual_val, int *out_residuals,
|
||||
int num_components) {
|
||||
Error error;
|
||||
|
||||
for (int i = 0; i < num_components; ++i) {
|
||||
const int dif = (predicted_val[i] - actual_val[i]);
|
||||
error.residual_error += std::abs(dif);
|
||||
out_residuals[i] = dif;
|
||||
// Entropy needs unsigned symbols, so convert the signed difference to an
|
||||
// unsigned symbol.
|
||||
entropy_symbols_[i] = ConvertSignedIntToSymbol(dif);
|
||||
}
|
||||
|
||||
// Generate entropy data for case that this configuration was used.
|
||||
// Note that the entropy stream is NOT updated in this case.
|
||||
const auto entropy_data =
|
||||
entropy_tracker_.Peek(entropy_symbols_.data(), num_components);
|
||||
|
||||
error.num_bits = entropy_tracker_.GetNumberOfDataBits(entropy_data) +
|
||||
entropy_tracker_.GetNumberOfRAnsTableBits(entropy_data);
|
||||
return error;
|
||||
}
|
||||
|
||||
typedef constrained_multi_parallelogram::Mode Mode;
|
||||
static constexpr int kMaxNumParallelograms =
|
||||
constrained_multi_parallelogram::kMaxNumParallelograms;
|
||||
// Crease edges are used to store whether any given edge should be used for
|
||||
// parallelogram prediction or not. New values are added in the order in which
|
||||
// the edges are processed. For better compression, the flags are stored in
|
||||
// in separate contexts based on the number of available parallelograms at a
|
||||
// given vertex.
|
||||
// TODO(draco-eng) reconsider std::vector<bool> (performance/space).
|
||||
std::vector<bool> is_crease_edge_[kMaxNumParallelograms];
|
||||
Mode selected_mode_;
|
||||
|
||||
ShannonEntropyTracker entropy_tracker_;
|
||||
|
||||
// Temporary storage for symbols that are fed into the |entropy_stream|.
|
||||
// Always contains only |num_components| entries.
|
||||
std::vector<uint32_t> entropy_symbols_;
|
||||
};
|
||||
|
||||
template <typename DataTypeT, class TransformT, class MeshDataT>
|
||||
bool MeshPredictionSchemeConstrainedMultiParallelogramEncoder<
|
||||
DataTypeT, TransformT, MeshDataT>::
|
||||
ComputeCorrectionValues(const DataTypeT *in_data, CorrType *out_corr,
|
||||
int size, int num_components,
|
||||
const PointIndex * /* entry_to_point_id_map */) {
|
||||
this->transform().Init(in_data, size, num_components);
|
||||
const CornerTable *const table = this->mesh_data().corner_table();
|
||||
const std::vector<int32_t> *const vertex_to_data_map =
|
||||
this->mesh_data().vertex_to_data_map();
|
||||
|
||||
// Predicted values for all simple parallelograms encountered at any given
|
||||
// vertex.
|
||||
std::vector<DataTypeT> pred_vals[kMaxNumParallelograms];
|
||||
for (int i = 0; i < kMaxNumParallelograms; ++i) {
|
||||
pred_vals[i].resize(num_components);
|
||||
}
|
||||
// Used to store predicted value for various multi-parallelogram predictions
|
||||
// (combinations of simple parallelogram predictions).
|
||||
std::vector<DataTypeT> multi_pred_vals(num_components);
|
||||
entropy_symbols_.resize(num_components);
|
||||
|
||||
// Struct for holding data about prediction configuration for different sets
|
||||
// of used parallelograms.
|
||||
struct PredictionConfiguration {
|
||||
PredictionConfiguration()
|
||||
: error(), configuration(0), num_used_parallelograms(0) {}
|
||||
Error error;
|
||||
uint8_t configuration; // Bitfield, 1 use parallelogram, 0 don't use it.
|
||||
int num_used_parallelograms;
|
||||
std::vector<DataTypeT> predicted_value;
|
||||
std::vector<int32_t> residuals;
|
||||
};
|
||||
|
||||
// Bit-field used for computing permutations of excluded edges
|
||||
// (parallelograms).
|
||||
bool exluded_parallelograms[kMaxNumParallelograms];
|
||||
|
||||
// Data about the number of used parallelogram and total number of available
|
||||
// parallelogram for each context. Used to compute overhead needed for storing
|
||||
// the parallelogram choices made by the encoder.
|
||||
int64_t total_used_parallelograms[kMaxNumParallelograms] = {0};
|
||||
int64_t total_parallelograms[kMaxNumParallelograms] = {0};
|
||||
|
||||
std::vector<int> current_residuals(num_components);
|
||||
|
||||
// We start processing the vertices from the end because this prediction uses
|
||||
// data from previous entries that could be overwritten when an entry is
|
||||
// processed.
|
||||
for (int p =
|
||||
static_cast<int>(this->mesh_data().data_to_corner_map()->size()) - 1;
|
||||
p > 0; --p) {
|
||||
const CornerIndex start_corner_id =
|
||||
this->mesh_data().data_to_corner_map()->at(p);
|
||||
|
||||
// Go over all corners attached to the vertex and compute the predicted
|
||||
// value from the parallelograms defined by their opposite faces.
|
||||
CornerIndex corner_id(start_corner_id);
|
||||
int num_parallelograms = 0;
|
||||
bool first_pass = true;
|
||||
while (corner_id != kInvalidCornerIndex) {
|
||||
if (ComputeParallelogramPrediction(
|
||||
p, corner_id, table, *vertex_to_data_map, in_data, num_components,
|
||||
&(pred_vals[num_parallelograms][0]))) {
|
||||
// Parallelogram prediction applied and stored in
|
||||
// |pred_vals[num_parallelograms]|
|
||||
++num_parallelograms;
|
||||
// Stop processing when we reach the maximum number of allowed
|
||||
// parallelograms.
|
||||
if (num_parallelograms == kMaxNumParallelograms) {
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
// Proceed to the next corner attached to the vertex. First swing left
|
||||
// and if we reach a boundary, swing right from the start corner.
|
||||
if (first_pass) {
|
||||
corner_id = table->SwingLeft(corner_id);
|
||||
} else {
|
||||
corner_id = table->SwingRight(corner_id);
|
||||
}
|
||||
if (corner_id == start_corner_id) {
|
||||
break;
|
||||
}
|
||||
if (corner_id == kInvalidCornerIndex && first_pass) {
|
||||
first_pass = false;
|
||||
corner_id = table->SwingRight(start_corner_id);
|
||||
}
|
||||
}
|
||||
|
||||
// Offset to the target (destination) vertex.
|
||||
const int dst_offset = p * num_components;
|
||||
Error error;
|
||||
|
||||
// Compute all prediction errors for all possible configurations of
|
||||
// available parallelograms.
|
||||
|
||||
// Variable for holding the best configuration that has been found so far.
|
||||
PredictionConfiguration best_prediction;
|
||||
|
||||
// Compute delta coding error (configuration when no parallelogram is
|
||||
// selected).
|
||||
const int src_offset = (p - 1) * num_components;
|
||||
error = ComputeError(in_data + src_offset, in_data + dst_offset,
|
||||
¤t_residuals[0], num_components);
|
||||
|
||||
if (num_parallelograms > 0) {
|
||||
total_parallelograms[num_parallelograms - 1] += num_parallelograms;
|
||||
const int64_t new_overhead_bits =
|
||||
ComputeOverheadBits(total_used_parallelograms[num_parallelograms - 1],
|
||||
total_parallelograms[num_parallelograms - 1]);
|
||||
error.num_bits += new_overhead_bits;
|
||||
}
|
||||
|
||||
best_prediction.error = error;
|
||||
best_prediction.configuration = 0;
|
||||
best_prediction.num_used_parallelograms = 0;
|
||||
best_prediction.predicted_value.assign(
|
||||
in_data + src_offset, in_data + src_offset + num_components);
|
||||
best_prediction.residuals.assign(current_residuals.begin(),
|
||||
current_residuals.end());
|
||||
|
||||
// Compute prediction error for different cases of used parallelograms.
|
||||
for (int num_used_parallelograms = 1;
|
||||
num_used_parallelograms <= num_parallelograms;
|
||||
++num_used_parallelograms) {
|
||||
// Mark all parallelograms as excluded.
|
||||
std::fill(exluded_parallelograms,
|
||||
exluded_parallelograms + num_parallelograms, true);
|
||||
// TODO(draco-eng) maybe this should be another std::fill.
|
||||
// Mark the first |num_used_parallelograms| as not excluded.
|
||||
for (int j = 0; j < num_used_parallelograms; ++j) {
|
||||
exluded_parallelograms[j] = false;
|
||||
}
|
||||
// Permute over the excluded edges and compute error for each
|
||||
// configuration (permutation of excluded parallelograms).
|
||||
do {
|
||||
// Reset the multi-parallelogram predicted values.
|
||||
for (int j = 0; j < num_components; ++j) {
|
||||
multi_pred_vals[j] = 0;
|
||||
}
|
||||
uint8_t configuration = 0;
|
||||
for (int j = 0; j < num_parallelograms; ++j) {
|
||||
if (exluded_parallelograms[j]) {
|
||||
continue;
|
||||
}
|
||||
for (int c = 0; c < num_components; ++c) {
|
||||
multi_pred_vals[c] += pred_vals[j][c];
|
||||
}
|
||||
// Set jth bit of the configuration.
|
||||
configuration |= (1 << j);
|
||||
}
|
||||
|
||||
for (int j = 0; j < num_components; ++j) {
|
||||
multi_pred_vals[j] /= num_used_parallelograms;
|
||||
}
|
||||
error = ComputeError(multi_pred_vals.data(), in_data + dst_offset,
|
||||
¤t_residuals[0], num_components);
|
||||
if (num_parallelograms > 0) {
|
||||
const int64_t new_overhead_bits = ComputeOverheadBits(
|
||||
total_used_parallelograms[num_parallelograms - 1] +
|
||||
num_used_parallelograms,
|
||||
total_parallelograms[num_parallelograms - 1]);
|
||||
|
||||
// Add overhead bits to the total error.
|
||||
error.num_bits += new_overhead_bits;
|
||||
}
|
||||
if (error < best_prediction.error) {
|
||||
best_prediction.error = error;
|
||||
best_prediction.configuration = configuration;
|
||||
best_prediction.num_used_parallelograms = num_used_parallelograms;
|
||||
best_prediction.predicted_value.assign(multi_pred_vals.begin(),
|
||||
multi_pred_vals.end());
|
||||
best_prediction.residuals.assign(current_residuals.begin(),
|
||||
current_residuals.end());
|
||||
}
|
||||
} while (std::next_permutation(
|
||||
exluded_parallelograms, exluded_parallelograms + num_parallelograms));
|
||||
}
|
||||
if (num_parallelograms > 0) {
|
||||
total_used_parallelograms[num_parallelograms - 1] +=
|
||||
best_prediction.num_used_parallelograms;
|
||||
}
|
||||
|
||||
// Update the entropy stream by adding selected residuals as symbols to the
|
||||
// stream.
|
||||
for (int i = 0; i < num_components; ++i) {
|
||||
entropy_symbols_[i] =
|
||||
ConvertSignedIntToSymbol(best_prediction.residuals[i]);
|
||||
}
|
||||
entropy_tracker_.Push(entropy_symbols_.data(), num_components);
|
||||
|
||||
for (int i = 0; i < num_parallelograms; ++i) {
|
||||
if ((best_prediction.configuration & (1 << i)) == 0) {
|
||||
// Parallelogram not used, mark the edge as crease.
|
||||
is_crease_edge_[num_parallelograms - 1].push_back(true);
|
||||
} else {
|
||||
// Parallelogram used. Add it to the predicted value and mark the
|
||||
// edge as not a crease.
|
||||
is_crease_edge_[num_parallelograms - 1].push_back(false);
|
||||
}
|
||||
}
|
||||
this->transform().ComputeCorrection(in_data + dst_offset,
|
||||
best_prediction.predicted_value.data(),
|
||||
out_corr + dst_offset);
|
||||
}
|
||||
// First element is always fixed because it cannot be predicted.
|
||||
for (int i = 0; i < num_components; ++i) {
|
||||
pred_vals[0][i] = static_cast<DataTypeT>(0);
|
||||
}
|
||||
this->transform().ComputeCorrection(in_data, pred_vals[0].data(), out_corr);
|
||||
return true;
|
||||
}
|
||||
|
||||
template <typename DataTypeT, class TransformT, class MeshDataT>
|
||||
bool MeshPredictionSchemeConstrainedMultiParallelogramEncoder<
|
||||
DataTypeT, TransformT, MeshDataT>::EncodePredictionData(EncoderBuffer
|
||||
*buffer) {
|
||||
// Encode selected edges using separate rans bit coder for each context.
|
||||
for (int i = 0; i < kMaxNumParallelograms; ++i) {
|
||||
// |i| is the context based on the number of available parallelograms, which
|
||||
// is always equal to |i + 1|.
|
||||
const int num_used_parallelograms = i + 1;
|
||||
EncodeVarint<uint32_t>(is_crease_edge_[i].size(), buffer);
|
||||
if (is_crease_edge_[i].size()) {
|
||||
RAnsBitEncoder encoder;
|
||||
encoder.StartEncoding();
|
||||
// Encode the crease edge flags in the reverse vertex order that is needed
|
||||
// be the decoder. Note that for the currently supported mode, each vertex
|
||||
// has exactly |num_used_parallelograms| edges that need to be encoded.
|
||||
for (int j = static_cast<int>(is_crease_edge_[i].size()) -
|
||||
num_used_parallelograms;
|
||||
j >= 0; j -= num_used_parallelograms) {
|
||||
// Go over all edges of the current vertex.
|
||||
for (int k = 0; k < num_used_parallelograms; ++k) {
|
||||
encoder.EncodeBit(is_crease_edge_[i][j + k]);
|
||||
}
|
||||
}
|
||||
encoder.EndEncoding(buffer);
|
||||
}
|
||||
}
|
||||
return MeshPredictionSchemeEncoder<DataTypeT, TransformT,
|
||||
MeshDataT>::EncodePredictionData(buffer);
|
||||
}
|
||||
|
||||
} // namespace draco
|
||||
|
||||
#endif // DRACO_COMPRESSION_ATTRIBUTES_PREDICTION_SCHEMES_MESH_PREDICTION_SCHEME_CONSTRAINED_MULTI_PARALLELOGRAM_ENCODER_H_
|
||||
|
|
@ -0,0 +1,34 @@
|
|||
// Copyright 2016 The Draco Authors.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
//
|
||||
#ifndef DRACO_COMPRESSION_ATTRIBUTES_PREDICTION_SCHEMES_MESH_PREDICTION_SCHEME_CONSTRAINED_MULTI_PARALLELOGRAM_SHARED_H_
|
||||
#define DRACO_COMPRESSION_ATTRIBUTES_PREDICTION_SCHEMES_MESH_PREDICTION_SCHEME_CONSTRAINED_MULTI_PARALLELOGRAM_SHARED_H_
|
||||
|
||||
namespace draco {
|
||||
|
||||
// Data shared between constrained multi-parallelogram encoder and decoder.
|
||||
namespace constrained_multi_parallelogram {
|
||||
|
||||
enum Mode {
|
||||
// Selects the optimal multi-parallelogram from up to 4 available
|
||||
// parallelograms.
|
||||
OPTIMAL_MULTI_PARALLELOGRAM = 0,
|
||||
};
|
||||
|
||||
static constexpr int kMaxNumParallelograms = 4;
|
||||
|
||||
} // namespace constrained_multi_parallelogram
|
||||
} // namespace draco
|
||||
|
||||
#endif // DRACO_COMPRESSION_ATTRIBUTES_PREDICTION_SCHEMES_MESH_PREDICTION_SCHEME_CONSTRAINED_MULTI_PARALLELOGRAM_SHARED_H_
|
||||
|
|
@ -0,0 +1,72 @@
|
|||
// Copyright 2016 The Draco Authors.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
//
|
||||
#ifndef DRACO_COMPRESSION_ATTRIBUTES_PREDICTION_SCHEMES_MESH_PREDICTION_SCHEME_DATA_H_
|
||||
#define DRACO_COMPRESSION_ATTRIBUTES_PREDICTION_SCHEMES_MESH_PREDICTION_SCHEME_DATA_H_
|
||||
|
||||
#include "draco/mesh/corner_table.h"
|
||||
#include "draco/mesh/mesh.h"
|
||||
|
||||
namespace draco {
|
||||
|
||||
// Class stores data about the connectivity data of the mesh and information
|
||||
// about how the connectivity was encoded/decoded.
|
||||
template <class CornerTableT>
|
||||
class MeshPredictionSchemeData {
|
||||
public:
|
||||
typedef CornerTableT CornerTable;
|
||||
MeshPredictionSchemeData()
|
||||
: mesh_(nullptr),
|
||||
corner_table_(nullptr),
|
||||
vertex_to_data_map_(nullptr),
|
||||
data_to_corner_map_(nullptr) {}
|
||||
|
||||
void Set(const Mesh *mesh, const CornerTable *table,
|
||||
const std::vector<CornerIndex> *data_to_corner_map,
|
||||
const std::vector<int32_t> *vertex_to_data_map) {
|
||||
mesh_ = mesh;
|
||||
corner_table_ = table;
|
||||
data_to_corner_map_ = data_to_corner_map;
|
||||
vertex_to_data_map_ = vertex_to_data_map;
|
||||
}
|
||||
|
||||
const Mesh *mesh() const { return mesh_; }
|
||||
const CornerTable *corner_table() const { return corner_table_; }
|
||||
const std::vector<int32_t> *vertex_to_data_map() const {
|
||||
return vertex_to_data_map_;
|
||||
}
|
||||
const std::vector<CornerIndex> *data_to_corner_map() const {
|
||||
return data_to_corner_map_;
|
||||
}
|
||||
bool IsInitialized() const {
|
||||
return mesh_ != nullptr && corner_table_ != nullptr &&
|
||||
vertex_to_data_map_ != nullptr && data_to_corner_map_ != nullptr;
|
||||
}
|
||||
|
||||
private:
|
||||
const Mesh *mesh_;
|
||||
const CornerTable *corner_table_;
|
||||
|
||||
// Mapping between vertices and their encoding order. I.e. when an attribute
|
||||
// entry on a given vertex was encoded.
|
||||
const std::vector<int32_t> *vertex_to_data_map_;
|
||||
|
||||
// Array that stores which corner was processed when a given attribute entry
|
||||
// was encoded or decoded.
|
||||
const std::vector<CornerIndex> *data_to_corner_map_;
|
||||
};
|
||||
|
||||
} // namespace draco
|
||||
|
||||
#endif // DRACO_COMPRESSION_ATTRIBUTES_PREDICTION_SCHEMES_MESH_PREDICTION_SCHEME_DATA_H_
|
||||
|
|
@ -0,0 +1,46 @@
|
|||
// Copyright 2016 The Draco Authors.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
//
|
||||
#ifndef DRACO_COMPRESSION_ATTRIBUTES_PREDICTION_SCHEMES_MESH_PREDICTION_SCHEME_DECODER_H_
|
||||
#define DRACO_COMPRESSION_ATTRIBUTES_PREDICTION_SCHEMES_MESH_PREDICTION_SCHEME_DECODER_H_
|
||||
|
||||
#include "draco/compression/attributes/prediction_schemes/mesh_prediction_scheme_data.h"
|
||||
#include "draco/compression/attributes/prediction_schemes/prediction_scheme_decoder.h"
|
||||
|
||||
namespace draco {
|
||||
|
||||
// Base class for all mesh prediction scheme decoders that use the mesh
|
||||
// connectivity data. |MeshDataT| can be any class that provides the same
|
||||
// interface as the PredictionSchemeMeshData class.
|
||||
template <typename DataTypeT, class TransformT, class MeshDataT>
|
||||
class MeshPredictionSchemeDecoder
|
||||
: public PredictionSchemeDecoder<DataTypeT, TransformT> {
|
||||
public:
|
||||
typedef MeshDataT MeshData;
|
||||
MeshPredictionSchemeDecoder(const PointAttribute *attribute,
|
||||
const TransformT &transform,
|
||||
const MeshDataT &mesh_data)
|
||||
: PredictionSchemeDecoder<DataTypeT, TransformT>(attribute, transform),
|
||||
mesh_data_(mesh_data) {}
|
||||
|
||||
protected:
|
||||
const MeshData &mesh_data() const { return mesh_data_; }
|
||||
|
||||
private:
|
||||
MeshData mesh_data_;
|
||||
};
|
||||
|
||||
} // namespace draco
|
||||
|
||||
#endif // DRACO_COMPRESSION_ATTRIBUTES_PREDICTION_SCHEMES_MESH_PREDICTION_SCHEME_DECODER_H_
|
||||
|
|
@ -0,0 +1,46 @@
|
|||
// Copyright 2016 The Draco Authors.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
//
|
||||
#ifndef DRACO_COMPRESSION_ATTRIBUTES_PREDICTION_SCHEMES_MESH_PREDICTION_SCHEME_ENCODER_H_
|
||||
#define DRACO_COMPRESSION_ATTRIBUTES_PREDICTION_SCHEMES_MESH_PREDICTION_SCHEME_ENCODER_H_
|
||||
|
||||
#include "draco/compression/attributes/prediction_schemes/mesh_prediction_scheme_data.h"
|
||||
#include "draco/compression/attributes/prediction_schemes/prediction_scheme_encoder.h"
|
||||
|
||||
namespace draco {
|
||||
|
||||
// Base class for all mesh prediction scheme encoders that use the mesh
|
||||
// connectivity data. |MeshDataT| can be any class that provides the same
|
||||
// interface as the PredictionSchemeMeshData class.
|
||||
template <typename DataTypeT, class TransformT, class MeshDataT>
|
||||
class MeshPredictionSchemeEncoder
|
||||
: public PredictionSchemeEncoder<DataTypeT, TransformT> {
|
||||
public:
|
||||
typedef MeshDataT MeshData;
|
||||
MeshPredictionSchemeEncoder(const PointAttribute *attribute,
|
||||
const TransformT &transform,
|
||||
const MeshDataT &mesh_data)
|
||||
: PredictionSchemeEncoder<DataTypeT, TransformT>(attribute, transform),
|
||||
mesh_data_(mesh_data) {}
|
||||
|
||||
protected:
|
||||
const MeshData &mesh_data() const { return mesh_data_; }
|
||||
|
||||
private:
|
||||
MeshData mesh_data_;
|
||||
};
|
||||
|
||||
} // namespace draco
|
||||
|
||||
#endif // DRACO_COMPRESSION_ATTRIBUTES_PREDICTION_SCHEMES_MESH_PREDICTION_SCHEME_ENCODER_H_
|
||||
|
|
@ -0,0 +1,172 @@
|
|||
// Copyright 2017 The Draco Authors.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
//
|
||||
#ifndef DRACO_COMPRESSION_ATTRIBUTES_PREDICTION_SCHEMES_MESH_PREDICTION_SCHEME_GEOMETRIC_NORMAL_DECODER_H_
|
||||
#define DRACO_COMPRESSION_ATTRIBUTES_PREDICTION_SCHEMES_MESH_PREDICTION_SCHEME_GEOMETRIC_NORMAL_DECODER_H_
|
||||
|
||||
#include "draco/compression/attributes/prediction_schemes/mesh_prediction_scheme_decoder.h"
|
||||
#include "draco/compression/attributes/prediction_schemes/mesh_prediction_scheme_geometric_normal_predictor_area.h"
|
||||
#include "draco/compression/bit_coders/rans_bit_decoder.h"
|
||||
#include "draco/draco_features.h"
|
||||
|
||||
namespace draco {
|
||||
|
||||
// See MeshPredictionSchemeGeometricNormalEncoder for documentation.
|
||||
template <typename DataTypeT, class TransformT, class MeshDataT>
|
||||
class MeshPredictionSchemeGeometricNormalDecoder
|
||||
: public MeshPredictionSchemeDecoder<DataTypeT, TransformT, MeshDataT> {
|
||||
public:
|
||||
using CorrType = typename MeshPredictionSchemeDecoder<DataTypeT, TransformT,
|
||||
MeshDataT>::CorrType;
|
||||
MeshPredictionSchemeGeometricNormalDecoder(const PointAttribute *attribute,
|
||||
const TransformT &transform,
|
||||
const MeshDataT &mesh_data)
|
||||
: MeshPredictionSchemeDecoder<DataTypeT, TransformT, MeshDataT>(
|
||||
attribute, transform, mesh_data),
|
||||
predictor_(mesh_data) {}
|
||||
|
||||
private:
|
||||
MeshPredictionSchemeGeometricNormalDecoder() {}
|
||||
|
||||
public:
|
||||
bool ComputeOriginalValues(const CorrType *in_corr, DataTypeT *out_data,
|
||||
int size, int num_components,
|
||||
const PointIndex *entry_to_point_id_map) override;
|
||||
|
||||
bool DecodePredictionData(DecoderBuffer *buffer) override;
|
||||
|
||||
PredictionSchemeMethod GetPredictionMethod() const override {
|
||||
return MESH_PREDICTION_GEOMETRIC_NORMAL;
|
||||
}
|
||||
|
||||
bool IsInitialized() const override {
|
||||
if (!predictor_.IsInitialized()) {
|
||||
return false;
|
||||
}
|
||||
if (!this->mesh_data().IsInitialized()) {
|
||||
return false;
|
||||
}
|
||||
if (!octahedron_tool_box_.IsInitialized()) {
|
||||
return false;
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
int GetNumParentAttributes() const override { return 1; }
|
||||
|
||||
GeometryAttribute::Type GetParentAttributeType(int i) const override {
|
||||
DRACO_DCHECK_EQ(i, 0);
|
||||
(void)i;
|
||||
return GeometryAttribute::POSITION;
|
||||
}
|
||||
|
||||
bool SetParentAttribute(const PointAttribute *att) override {
|
||||
if (att->attribute_type() != GeometryAttribute::POSITION) {
|
||||
return false; // Invalid attribute type.
|
||||
}
|
||||
if (att->num_components() != 3) {
|
||||
return false; // Currently works only for 3 component positions.
|
||||
}
|
||||
predictor_.SetPositionAttribute(*att);
|
||||
return true;
|
||||
}
|
||||
void SetQuantizationBits(int q) {
|
||||
octahedron_tool_box_.SetQuantizationBits(q);
|
||||
}
|
||||
|
||||
private:
|
||||
MeshPredictionSchemeGeometricNormalPredictorArea<DataTypeT, TransformT,
|
||||
MeshDataT>
|
||||
predictor_;
|
||||
OctahedronToolBox octahedron_tool_box_;
|
||||
RAnsBitDecoder flip_normal_bit_decoder_;
|
||||
};
|
||||
|
||||
template <typename DataTypeT, class TransformT, class MeshDataT>
|
||||
bool MeshPredictionSchemeGeometricNormalDecoder<
|
||||
DataTypeT, TransformT,
|
||||
MeshDataT>::ComputeOriginalValues(const CorrType *in_corr,
|
||||
DataTypeT *out_data, int /* size */,
|
||||
int num_components,
|
||||
const PointIndex *entry_to_point_id_map) {
|
||||
this->SetQuantizationBits(this->transform().quantization_bits());
|
||||
predictor_.SetEntryToPointIdMap(entry_to_point_id_map);
|
||||
DRACO_DCHECK(this->IsInitialized());
|
||||
|
||||
// Expecting in_data in octahedral coordinates, i.e., portable attribute.
|
||||
DRACO_DCHECK_EQ(num_components, 2);
|
||||
|
||||
const int corner_map_size =
|
||||
static_cast<int>(this->mesh_data().data_to_corner_map()->size());
|
||||
|
||||
VectorD<int32_t, 3> pred_normal_3d;
|
||||
int32_t pred_normal_oct[2];
|
||||
|
||||
for (int data_id = 0; data_id < corner_map_size; ++data_id) {
|
||||
const CornerIndex corner_id =
|
||||
this->mesh_data().data_to_corner_map()->at(data_id);
|
||||
predictor_.ComputePredictedValue(corner_id, pred_normal_3d.data());
|
||||
|
||||
// Compute predicted octahedral coordinates.
|
||||
octahedron_tool_box_.CanonicalizeIntegerVector(pred_normal_3d.data());
|
||||
DRACO_DCHECK_EQ(pred_normal_3d.AbsSum(),
|
||||
octahedron_tool_box_.center_value());
|
||||
if (flip_normal_bit_decoder_.DecodeNextBit()) {
|
||||
pred_normal_3d = -pred_normal_3d;
|
||||
}
|
||||
octahedron_tool_box_.IntegerVectorToQuantizedOctahedralCoords(
|
||||
pred_normal_3d.data(), pred_normal_oct, pred_normal_oct + 1);
|
||||
|
||||
const int data_offset = data_id * 2;
|
||||
this->transform().ComputeOriginalValue(
|
||||
pred_normal_oct, in_corr + data_offset, out_data + data_offset);
|
||||
}
|
||||
flip_normal_bit_decoder_.EndDecoding();
|
||||
return true;
|
||||
}
|
||||
|
||||
template <typename DataTypeT, class TransformT, class MeshDataT>
|
||||
bool MeshPredictionSchemeGeometricNormalDecoder<
|
||||
DataTypeT, TransformT, MeshDataT>::DecodePredictionData(DecoderBuffer
|
||||
*buffer) {
|
||||
// Get data needed for transform
|
||||
if (!this->transform().DecodeTransformData(buffer)) {
|
||||
return false;
|
||||
}
|
||||
|
||||
#ifdef DRACO_BACKWARDS_COMPATIBILITY_SUPPORTED
|
||||
if (buffer->bitstream_version() < DRACO_BITSTREAM_VERSION(2, 2)) {
|
||||
uint8_t prediction_mode;
|
||||
if (!buffer->Decode(&prediction_mode)) {
|
||||
return false;
|
||||
}
|
||||
|
||||
if (!predictor_.SetNormalPredictionMode(
|
||||
NormalPredictionMode(prediction_mode))) {
|
||||
return false;
|
||||
}
|
||||
}
|
||||
#endif
|
||||
|
||||
// Init normal flips.
|
||||
if (!flip_normal_bit_decoder_.StartDecoding(buffer)) {
|
||||
return false;
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
} // namespace draco
|
||||
|
||||
#endif // DRACO_COMPRESSION_ATTRIBUTES_PREDICTION_SCHEMES_MESH_PREDICTION_SCHEME_GEOMETRIC_NORMAL_DECODER_H_
|
||||
|
|
@ -0,0 +1,180 @@
|
|||
// Copyright 2017 The Draco Authors.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
//
|
||||
#ifndef DRACO_COMPRESSION_ATTRIBUTES_PREDICTION_SCHEMES_MESH_PREDICTION_SCHEME_GEOMETRIC_NORMAL_ENCODER_H_
|
||||
#define DRACO_COMPRESSION_ATTRIBUTES_PREDICTION_SCHEMES_MESH_PREDICTION_SCHEME_GEOMETRIC_NORMAL_ENCODER_H_
|
||||
|
||||
#include "draco/compression/attributes/prediction_schemes/mesh_prediction_scheme_encoder.h"
|
||||
#include "draco/compression/attributes/prediction_schemes/mesh_prediction_scheme_geometric_normal_predictor_area.h"
|
||||
#include "draco/compression/bit_coders/rans_bit_encoder.h"
|
||||
#include "draco/compression/config/compression_shared.h"
|
||||
|
||||
namespace draco {
|
||||
|
||||
// Prediction scheme for normals based on the underlying geometry.
|
||||
// At a smooth vertices normals are computed by weighting the normals of
|
||||
// adjacent faces with the area of these faces. At seams, the same approach
|
||||
// applies for seam corners.
|
||||
template <typename DataTypeT, class TransformT, class MeshDataT>
|
||||
class MeshPredictionSchemeGeometricNormalEncoder
|
||||
: public MeshPredictionSchemeEncoder<DataTypeT, TransformT, MeshDataT> {
|
||||
public:
|
||||
using CorrType = typename MeshPredictionSchemeEncoder<DataTypeT, TransformT,
|
||||
MeshDataT>::CorrType;
|
||||
MeshPredictionSchemeGeometricNormalEncoder(const PointAttribute *attribute,
|
||||
const TransformT &transform,
|
||||
const MeshDataT &mesh_data)
|
||||
: MeshPredictionSchemeEncoder<DataTypeT, TransformT, MeshDataT>(
|
||||
attribute, transform, mesh_data),
|
||||
predictor_(mesh_data) {}
|
||||
|
||||
bool ComputeCorrectionValues(
|
||||
const DataTypeT *in_data, CorrType *out_corr, int size,
|
||||
int num_components, const PointIndex *entry_to_point_id_map) override;
|
||||
|
||||
bool EncodePredictionData(EncoderBuffer *buffer) override;
|
||||
|
||||
PredictionSchemeMethod GetPredictionMethod() const override {
|
||||
return MESH_PREDICTION_GEOMETRIC_NORMAL;
|
||||
}
|
||||
|
||||
bool IsInitialized() const override {
|
||||
if (!predictor_.IsInitialized()) {
|
||||
return false;
|
||||
}
|
||||
if (!this->mesh_data().IsInitialized()) {
|
||||
return false;
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
int GetNumParentAttributes() const override { return 1; }
|
||||
|
||||
GeometryAttribute::Type GetParentAttributeType(int i) const override {
|
||||
DRACO_DCHECK_EQ(i, 0);
|
||||
(void)i;
|
||||
return GeometryAttribute::POSITION;
|
||||
}
|
||||
|
||||
bool SetParentAttribute(const PointAttribute *att) override {
|
||||
if (att->attribute_type() != GeometryAttribute::POSITION) {
|
||||
return false; // Invalid attribute type.
|
||||
}
|
||||
if (att->num_components() != 3) {
|
||||
return false; // Currently works only for 3 component positions.
|
||||
}
|
||||
predictor_.SetPositionAttribute(*att);
|
||||
return true;
|
||||
}
|
||||
|
||||
private:
|
||||
void SetQuantizationBits(int q) {
|
||||
DRACO_DCHECK_GE(q, 2);
|
||||
DRACO_DCHECK_LE(q, 30);
|
||||
octahedron_tool_box_.SetQuantizationBits(q);
|
||||
}
|
||||
MeshPredictionSchemeGeometricNormalPredictorArea<DataTypeT, TransformT,
|
||||
MeshDataT>
|
||||
predictor_;
|
||||
|
||||
OctahedronToolBox octahedron_tool_box_;
|
||||
RAnsBitEncoder flip_normal_bit_encoder_;
|
||||
};
|
||||
|
||||
template <typename DataTypeT, class TransformT, class MeshDataT>
|
||||
bool MeshPredictionSchemeGeometricNormalEncoder<DataTypeT, TransformT,
|
||||
MeshDataT>::
|
||||
ComputeCorrectionValues(const DataTypeT *in_data, CorrType *out_corr,
|
||||
int size, int num_components,
|
||||
const PointIndex *entry_to_point_id_map) {
|
||||
this->SetQuantizationBits(this->transform().quantization_bits());
|
||||
predictor_.SetEntryToPointIdMap(entry_to_point_id_map);
|
||||
DRACO_DCHECK(this->IsInitialized());
|
||||
// Expecting in_data in octahedral coordinates, i.e., portable attribute.
|
||||
DRACO_DCHECK_EQ(num_components, 2);
|
||||
|
||||
flip_normal_bit_encoder_.StartEncoding();
|
||||
|
||||
const int corner_map_size =
|
||||
static_cast<int>(this->mesh_data().data_to_corner_map()->size());
|
||||
|
||||
VectorD<int32_t, 3> pred_normal_3d;
|
||||
VectorD<int32_t, 2> pos_pred_normal_oct;
|
||||
VectorD<int32_t, 2> neg_pred_normal_oct;
|
||||
VectorD<int32_t, 2> pos_correction;
|
||||
VectorD<int32_t, 2> neg_correction;
|
||||
for (int data_id = 0; data_id < corner_map_size; ++data_id) {
|
||||
const CornerIndex corner_id =
|
||||
this->mesh_data().data_to_corner_map()->at(data_id);
|
||||
predictor_.ComputePredictedValue(corner_id, pred_normal_3d.data());
|
||||
|
||||
// Compute predicted octahedral coordinates.
|
||||
octahedron_tool_box_.CanonicalizeIntegerVector(pred_normal_3d.data());
|
||||
DRACO_DCHECK_EQ(pred_normal_3d.AbsSum(),
|
||||
octahedron_tool_box_.center_value());
|
||||
|
||||
// Compute octahedral coordinates for both possible directions.
|
||||
octahedron_tool_box_.IntegerVectorToQuantizedOctahedralCoords(
|
||||
pred_normal_3d.data(), pos_pred_normal_oct.data(),
|
||||
pos_pred_normal_oct.data() + 1);
|
||||
pred_normal_3d = -pred_normal_3d;
|
||||
octahedron_tool_box_.IntegerVectorToQuantizedOctahedralCoords(
|
||||
pred_normal_3d.data(), neg_pred_normal_oct.data(),
|
||||
neg_pred_normal_oct.data() + 1);
|
||||
|
||||
// Choose the one with the best correction value.
|
||||
const int data_offset = data_id * 2;
|
||||
this->transform().ComputeCorrection(in_data + data_offset,
|
||||
pos_pred_normal_oct.data(),
|
||||
pos_correction.data());
|
||||
this->transform().ComputeCorrection(in_data + data_offset,
|
||||
neg_pred_normal_oct.data(),
|
||||
neg_correction.data());
|
||||
pos_correction[0] = octahedron_tool_box_.ModMax(pos_correction[0]);
|
||||
pos_correction[1] = octahedron_tool_box_.ModMax(pos_correction[1]);
|
||||
neg_correction[0] = octahedron_tool_box_.ModMax(neg_correction[0]);
|
||||
neg_correction[1] = octahedron_tool_box_.ModMax(neg_correction[1]);
|
||||
if (pos_correction.AbsSum() < neg_correction.AbsSum()) {
|
||||
flip_normal_bit_encoder_.EncodeBit(false);
|
||||
(out_corr + data_offset)[0] =
|
||||
octahedron_tool_box_.MakePositive(pos_correction[0]);
|
||||
(out_corr + data_offset)[1] =
|
||||
octahedron_tool_box_.MakePositive(pos_correction[1]);
|
||||
} else {
|
||||
flip_normal_bit_encoder_.EncodeBit(true);
|
||||
(out_corr + data_offset)[0] =
|
||||
octahedron_tool_box_.MakePositive(neg_correction[0]);
|
||||
(out_corr + data_offset)[1] =
|
||||
octahedron_tool_box_.MakePositive(neg_correction[1]);
|
||||
}
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
template <typename DataTypeT, class TransformT, class MeshDataT>
|
||||
bool MeshPredictionSchemeGeometricNormalEncoder<
|
||||
DataTypeT, TransformT, MeshDataT>::EncodePredictionData(EncoderBuffer
|
||||
*buffer) {
|
||||
if (!this->transform().EncodeTransformData(buffer)) {
|
||||
return false;
|
||||
}
|
||||
|
||||
// Encode normal flips.
|
||||
flip_normal_bit_encoder_.EndEncoding(buffer);
|
||||
return true;
|
||||
}
|
||||
|
||||
} // namespace draco
|
||||
|
||||
#endif // DRACO_COMPRESSION_ATTRIBUTES_PREDICTION_SCHEMES_MESH_PREDICTION_SCHEME_GEOMETRIC_NORMAL_ENCODER_H_
|
||||
|
|
@ -0,0 +1,117 @@
|
|||
// Copyright 2017 The Draco Authors.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
//
|
||||
#ifndef DRACO_COMPRESSION_ATTRIBUTES_PREDICTION_SCHEMES_MESH_PREDICTION_SCHEME_GEOMETRIC_NORMAL_PREDICTOR_AREA_H_
|
||||
#define DRACO_COMPRESSION_ATTRIBUTES_PREDICTION_SCHEMES_MESH_PREDICTION_SCHEME_GEOMETRIC_NORMAL_PREDICTOR_AREA_H_
|
||||
|
||||
#include "draco/compression/attributes/prediction_schemes/mesh_prediction_scheme_geometric_normal_predictor_base.h"
|
||||
|
||||
namespace draco {
|
||||
|
||||
// This predictor estimates the normal via the surrounding triangles of the
|
||||
// given corner. Triangles are weighted according to their area.
|
||||
template <typename DataTypeT, class TransformT, class MeshDataT>
|
||||
class MeshPredictionSchemeGeometricNormalPredictorArea
|
||||
: public MeshPredictionSchemeGeometricNormalPredictorBase<
|
||||
DataTypeT, TransformT, MeshDataT> {
|
||||
typedef MeshPredictionSchemeGeometricNormalPredictorBase<
|
||||
DataTypeT, TransformT, MeshDataT>
|
||||
Base;
|
||||
|
||||
public:
|
||||
explicit MeshPredictionSchemeGeometricNormalPredictorArea(const MeshDataT &md)
|
||||
: Base(md) {
|
||||
this->SetNormalPredictionMode(TRIANGLE_AREA);
|
||||
};
|
||||
virtual ~MeshPredictionSchemeGeometricNormalPredictorArea() {}
|
||||
|
||||
// Computes predicted octahedral coordinates on a given corner.
|
||||
void ComputePredictedValue(CornerIndex corner_id,
|
||||
DataTypeT *prediction) override {
|
||||
DRACO_DCHECK(this->IsInitialized());
|
||||
typedef typename MeshDataT::CornerTable CornerTable;
|
||||
const CornerTable *const corner_table = this->mesh_data_.corner_table();
|
||||
// Going to compute the predicted normal from the surrounding triangles
|
||||
// according to the connectivity of the given corner table.
|
||||
VertexCornersIterator<CornerTable> cit(corner_table, corner_id);
|
||||
// Position of central vertex does not change in loop.
|
||||
const VectorD<int64_t, 3> pos_cent = this->GetPositionForCorner(corner_id);
|
||||
// Computing normals for triangles and adding them up.
|
||||
|
||||
VectorD<int64_t, 3> normal;
|
||||
CornerIndex c_next, c_prev;
|
||||
while (!cit.End()) {
|
||||
// Getting corners.
|
||||
if (this->normal_prediction_mode_ == ONE_TRIANGLE) {
|
||||
c_next = corner_table->Next(corner_id);
|
||||
c_prev = corner_table->Previous(corner_id);
|
||||
} else {
|
||||
c_next = corner_table->Next(cit.Corner());
|
||||
c_prev = corner_table->Previous(cit.Corner());
|
||||
}
|
||||
const VectorD<int64_t, 3> pos_next = this->GetPositionForCorner(c_next);
|
||||
const VectorD<int64_t, 3> pos_prev = this->GetPositionForCorner(c_prev);
|
||||
|
||||
// Computing delta vectors to next and prev.
|
||||
const VectorD<int64_t, 3> delta_next = pos_next - pos_cent;
|
||||
const VectorD<int64_t, 3> delta_prev = pos_prev - pos_cent;
|
||||
|
||||
// Computing cross product.
|
||||
const VectorD<int64_t, 3> cross = CrossProduct(delta_next, delta_prev);
|
||||
|
||||
// Prevent signed integer overflows by doing math as unsigned.
|
||||
auto normal_data = reinterpret_cast<uint64_t *>(normal.data());
|
||||
auto cross_data = reinterpret_cast<const uint64_t *>(cross.data());
|
||||
normal_data[0] = normal_data[0] + cross_data[0];
|
||||
normal_data[1] = normal_data[1] + cross_data[1];
|
||||
normal_data[2] = normal_data[2] + cross_data[2];
|
||||
|
||||
cit.Next();
|
||||
}
|
||||
|
||||
// Convert to int32_t, make sure entries are not too large.
|
||||
constexpr int64_t upper_bound = 1 << 29;
|
||||
if (this->normal_prediction_mode_ == ONE_TRIANGLE) {
|
||||
const int32_t abs_sum = static_cast<int32_t>(normal.AbsSum());
|
||||
if (abs_sum > upper_bound) {
|
||||
const int64_t quotient = abs_sum / upper_bound;
|
||||
normal = normal / quotient;
|
||||
}
|
||||
} else {
|
||||
const int64_t abs_sum = normal.AbsSum();
|
||||
if (abs_sum > upper_bound) {
|
||||
const int64_t quotient = abs_sum / upper_bound;
|
||||
normal = normal / quotient;
|
||||
}
|
||||
}
|
||||
DRACO_DCHECK_LE(normal.AbsSum(), upper_bound);
|
||||
prediction[0] = static_cast<int32_t>(normal[0]);
|
||||
prediction[1] = static_cast<int32_t>(normal[1]);
|
||||
prediction[2] = static_cast<int32_t>(normal[2]);
|
||||
}
|
||||
bool SetNormalPredictionMode(NormalPredictionMode mode) override {
|
||||
if (mode == ONE_TRIANGLE) {
|
||||
this->normal_prediction_mode_ = mode;
|
||||
return true;
|
||||
} else if (mode == TRIANGLE_AREA) {
|
||||
this->normal_prediction_mode_ = mode;
|
||||
return true;
|
||||
}
|
||||
return false;
|
||||
}
|
||||
};
|
||||
|
||||
} // namespace draco
|
||||
|
||||
#endif // DRACO_COMPRESSION_ATTRIBUTES_PREDICTION_SCHEMES_MESH_PREDICTION_SCHEME_GEOMETRIC_NORMAL_PREDICTOR_AREA_H_
|
||||
|
|
@ -0,0 +1,96 @@
|
|||
// Copyright 2017 The Draco Authors.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
//
|
||||
#ifndef DRACO_COMPRESSION_ATTRIBUTES_PREDICTION_SCHEMES_MESH_PREDICTION_SCHEME_GEOMETRIC_NORMAL_PREDICTOR_BASE_H_
|
||||
#define DRACO_COMPRESSION_ATTRIBUTES_PREDICTION_SCHEMES_MESH_PREDICTION_SCHEME_GEOMETRIC_NORMAL_PREDICTOR_BASE_H_
|
||||
|
||||
#include <math.h>
|
||||
|
||||
#include "draco/attributes/point_attribute.h"
|
||||
#include "draco/compression/attributes/normal_compression_utils.h"
|
||||
#include "draco/compression/config/compression_shared.h"
|
||||
#include "draco/core/math_utils.h"
|
||||
#include "draco/core/vector_d.h"
|
||||
#include "draco/mesh/corner_table.h"
|
||||
#include "draco/mesh/corner_table_iterators.h"
|
||||
|
||||
namespace draco {
|
||||
|
||||
// Base class for geometric normal predictors using position attribute.
|
||||
template <typename DataTypeT, class TransformT, class MeshDataT>
|
||||
class MeshPredictionSchemeGeometricNormalPredictorBase {
|
||||
protected:
|
||||
explicit MeshPredictionSchemeGeometricNormalPredictorBase(const MeshDataT &md)
|
||||
: pos_attribute_(nullptr),
|
||||
entry_to_point_id_map_(nullptr),
|
||||
mesh_data_(md) {}
|
||||
virtual ~MeshPredictionSchemeGeometricNormalPredictorBase() {}
|
||||
|
||||
public:
|
||||
void SetPositionAttribute(const PointAttribute &position_attribute) {
|
||||
pos_attribute_ = &position_attribute;
|
||||
}
|
||||
void SetEntryToPointIdMap(const PointIndex *map) {
|
||||
entry_to_point_id_map_ = map;
|
||||
}
|
||||
bool IsInitialized() const {
|
||||
if (pos_attribute_ == nullptr) {
|
||||
return false;
|
||||
}
|
||||
if (entry_to_point_id_map_ == nullptr) {
|
||||
return false;
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
virtual bool SetNormalPredictionMode(NormalPredictionMode mode) = 0;
|
||||
virtual NormalPredictionMode GetNormalPredictionMode() const {
|
||||
return normal_prediction_mode_;
|
||||
}
|
||||
|
||||
protected:
|
||||
VectorD<int64_t, 3> GetPositionForDataId(int data_id) const {
|
||||
DRACO_DCHECK(this->IsInitialized());
|
||||
const auto point_id = entry_to_point_id_map_[data_id];
|
||||
const auto pos_val_id = pos_attribute_->mapped_index(point_id);
|
||||
VectorD<int64_t, 3> pos;
|
||||
pos_attribute_->ConvertValue(pos_val_id, &pos[0]);
|
||||
return pos;
|
||||
}
|
||||
VectorD<int64_t, 3> GetPositionForCorner(CornerIndex ci) const {
|
||||
DRACO_DCHECK(this->IsInitialized());
|
||||
const auto corner_table = mesh_data_.corner_table();
|
||||
const auto vert_id = corner_table->Vertex(ci).value();
|
||||
const auto data_id = mesh_data_.vertex_to_data_map()->at(vert_id);
|
||||
return GetPositionForDataId(data_id);
|
||||
}
|
||||
VectorD<int32_t, 2> GetOctahedralCoordForDataId(int data_id,
|
||||
const DataTypeT *data) const {
|
||||
DRACO_DCHECK(this->IsInitialized());
|
||||
const int data_offset = data_id * 2;
|
||||
return VectorD<int32_t, 2>(data[data_offset], data[data_offset + 1]);
|
||||
}
|
||||
// Computes predicted octahedral coordinates on a given corner.
|
||||
virtual void ComputePredictedValue(CornerIndex corner_id,
|
||||
DataTypeT *prediction) = 0;
|
||||
|
||||
const PointAttribute *pos_attribute_;
|
||||
const PointIndex *entry_to_point_id_map_;
|
||||
MeshDataT mesh_data_;
|
||||
NormalPredictionMode normal_prediction_mode_;
|
||||
};
|
||||
|
||||
} // namespace draco
|
||||
|
||||
#endif // DRACO_COMPRESSION_ATTRIBUTES_PREDICTION_SCHEMES_MESH_PREDICTION_SCHEME_GEOMETRIC_NORMAL_PREDICTOR_BASE_H_
|
||||
|
|
@ -0,0 +1,126 @@
|
|||
// Copyright 2016 The Draco Authors.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
//
|
||||
#ifdef DRACO_BACKWARDS_COMPATIBILITY_SUPPORTED
|
||||
#ifndef DRACO_COMPRESSION_ATTRIBUTES_PREDICTION_SCHEMES_MESH_PREDICTION_SCHEME_MULTI_PARALLELOGRAM_DECODER_H_
|
||||
#define DRACO_COMPRESSION_ATTRIBUTES_PREDICTION_SCHEMES_MESH_PREDICTION_SCHEME_MULTI_PARALLELOGRAM_DECODER_H_
|
||||
|
||||
#include "draco/compression/attributes/prediction_schemes/mesh_prediction_scheme_decoder.h"
|
||||
#include "draco/compression/attributes/prediction_schemes/mesh_prediction_scheme_parallelogram_shared.h"
|
||||
#include "draco/draco_features.h"
|
||||
|
||||
namespace draco {
|
||||
|
||||
// Decoder for predictions encoded by multi-parallelogram encoding scheme.
|
||||
// See the corresponding encoder for method description.
|
||||
template <typename DataTypeT, class TransformT, class MeshDataT>
|
||||
class MeshPredictionSchemeMultiParallelogramDecoder
|
||||
: public MeshPredictionSchemeDecoder<DataTypeT, TransformT, MeshDataT> {
|
||||
public:
|
||||
using CorrType =
|
||||
typename PredictionSchemeDecoder<DataTypeT, TransformT>::CorrType;
|
||||
using CornerTable = typename MeshDataT::CornerTable;
|
||||
|
||||
explicit MeshPredictionSchemeMultiParallelogramDecoder(
|
||||
const PointAttribute *attribute)
|
||||
: MeshPredictionSchemeDecoder<DataTypeT, TransformT, MeshDataT>(
|
||||
attribute) {}
|
||||
MeshPredictionSchemeMultiParallelogramDecoder(const PointAttribute *attribute,
|
||||
const TransformT &transform,
|
||||
const MeshDataT &mesh_data)
|
||||
: MeshPredictionSchemeDecoder<DataTypeT, TransformT, MeshDataT>(
|
||||
attribute, transform, mesh_data) {}
|
||||
|
||||
bool ComputeOriginalValues(const CorrType *in_corr, DataTypeT *out_data,
|
||||
int size, int num_components,
|
||||
const PointIndex *entry_to_point_id_map) override;
|
||||
PredictionSchemeMethod GetPredictionMethod() const override {
|
||||
return MESH_PREDICTION_MULTI_PARALLELOGRAM;
|
||||
}
|
||||
|
||||
bool IsInitialized() const override {
|
||||
return this->mesh_data().IsInitialized();
|
||||
}
|
||||
};
|
||||
|
||||
template <typename DataTypeT, class TransformT, class MeshDataT>
|
||||
bool MeshPredictionSchemeMultiParallelogramDecoder<DataTypeT, TransformT,
|
||||
MeshDataT>::
|
||||
ComputeOriginalValues(const CorrType *in_corr, DataTypeT *out_data,
|
||||
int /* size */, int num_components,
|
||||
const PointIndex * /* entry_to_point_id_map */) {
|
||||
this->transform().Init(num_components);
|
||||
|
||||
// For storage of prediction values (already initialized to zero).
|
||||
std::unique_ptr<DataTypeT[]> pred_vals(new DataTypeT[num_components]());
|
||||
std::unique_ptr<DataTypeT[]> parallelogram_pred_vals(
|
||||
new DataTypeT[num_components]());
|
||||
|
||||
this->transform().ComputeOriginalValue(pred_vals.get(), in_corr, out_data);
|
||||
|
||||
const CornerTable *const table = this->mesh_data().corner_table();
|
||||
const std::vector<int32_t> *const vertex_to_data_map =
|
||||
this->mesh_data().vertex_to_data_map();
|
||||
|
||||
const int corner_map_size =
|
||||
static_cast<int>(this->mesh_data().data_to_corner_map()->size());
|
||||
for (int p = 1; p < corner_map_size; ++p) {
|
||||
const CornerIndex start_corner_id =
|
||||
this->mesh_data().data_to_corner_map()->at(p);
|
||||
|
||||
CornerIndex corner_id(start_corner_id);
|
||||
int num_parallelograms = 0;
|
||||
for (int i = 0; i < num_components; ++i) {
|
||||
pred_vals[i] = static_cast<DataTypeT>(0);
|
||||
}
|
||||
while (corner_id != kInvalidCornerIndex) {
|
||||
if (ComputeParallelogramPrediction(
|
||||
p, corner_id, table, *vertex_to_data_map, out_data,
|
||||
num_components, parallelogram_pred_vals.get())) {
|
||||
for (int c = 0; c < num_components; ++c) {
|
||||
pred_vals[c] += parallelogram_pred_vals[c];
|
||||
}
|
||||
++num_parallelograms;
|
||||
}
|
||||
|
||||
// Proceed to the next corner attached to the vertex.
|
||||
corner_id = table->SwingRight(corner_id);
|
||||
if (corner_id == start_corner_id) {
|
||||
corner_id = kInvalidCornerIndex;
|
||||
}
|
||||
}
|
||||
|
||||
const int dst_offset = p * num_components;
|
||||
if (num_parallelograms == 0) {
|
||||
// No parallelogram was valid.
|
||||
// We use the last decoded point as a reference.
|
||||
const int src_offset = (p - 1) * num_components;
|
||||
this->transform().ComputeOriginalValue(
|
||||
out_data + src_offset, in_corr + dst_offset, out_data + dst_offset);
|
||||
} else {
|
||||
// Compute the correction from the predicted value.
|
||||
for (int c = 0; c < num_components; ++c) {
|
||||
pred_vals[c] /= num_parallelograms;
|
||||
}
|
||||
this->transform().ComputeOriginalValue(
|
||||
pred_vals.get(), in_corr + dst_offset, out_data + dst_offset);
|
||||
}
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
} // namespace draco
|
||||
|
||||
#endif // DRACO_COMPRESSION_ATTRIBUTES_PREDICTION_SCHEMES_MESH_PREDICTION_SCHEME_MULTI_PARALLELOGRAM_DECODER_H_
|
||||
#endif
|
||||
|
|
@ -0,0 +1,133 @@
|
|||
// Copyright 2016 The Draco Authors.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
//
|
||||
#ifndef DRACO_COMPRESSION_ATTRIBUTES_PREDICTION_SCHEMES_MESH_PREDICTION_SCHEME_MULTI_PARALLELOGRAM_ENCODER_H_
|
||||
#define DRACO_COMPRESSION_ATTRIBUTES_PREDICTION_SCHEMES_MESH_PREDICTION_SCHEME_MULTI_PARALLELOGRAM_ENCODER_H_
|
||||
|
||||
#include "draco/compression/attributes/prediction_schemes/mesh_prediction_scheme_encoder.h"
|
||||
#include "draco/compression/attributes/prediction_schemes/mesh_prediction_scheme_parallelogram_shared.h"
|
||||
|
||||
namespace draco {
|
||||
|
||||
// Multi parallelogram prediction predicts attribute values using information
|
||||
// from all opposite faces to the predicted vertex, compared to the standard
|
||||
// prediction scheme, where only one opposite face is used (see
|
||||
// prediction_scheme_parallelogram.h). This approach is generally slower than
|
||||
// the standard parallelogram prediction, but it usually results in better
|
||||
// prediction (5 - 20% based on the quantization level. Better gains can be
|
||||
// achieved when more aggressive quantization is used).
|
||||
template <typename DataTypeT, class TransformT, class MeshDataT>
|
||||
class MeshPredictionSchemeMultiParallelogramEncoder
|
||||
: public MeshPredictionSchemeEncoder<DataTypeT, TransformT, MeshDataT> {
|
||||
public:
|
||||
using CorrType =
|
||||
typename PredictionSchemeEncoder<DataTypeT, TransformT>::CorrType;
|
||||
using CornerTable = typename MeshDataT::CornerTable;
|
||||
|
||||
explicit MeshPredictionSchemeMultiParallelogramEncoder(
|
||||
const PointAttribute *attribute)
|
||||
: MeshPredictionSchemeEncoder<DataTypeT, TransformT, MeshDataT>(
|
||||
attribute) {}
|
||||
MeshPredictionSchemeMultiParallelogramEncoder(const PointAttribute *attribute,
|
||||
const TransformT &transform,
|
||||
const MeshDataT &mesh_data)
|
||||
: MeshPredictionSchemeEncoder<DataTypeT, TransformT, MeshDataT>(
|
||||
attribute, transform, mesh_data) {}
|
||||
|
||||
bool ComputeCorrectionValues(
|
||||
const DataTypeT *in_data, CorrType *out_corr, int size,
|
||||
int num_components, const PointIndex *entry_to_point_id_map) override;
|
||||
PredictionSchemeMethod GetPredictionMethod() const override {
|
||||
return MESH_PREDICTION_MULTI_PARALLELOGRAM;
|
||||
}
|
||||
|
||||
bool IsInitialized() const override {
|
||||
return this->mesh_data().IsInitialized();
|
||||
}
|
||||
};
|
||||
|
||||
template <typename DataTypeT, class TransformT, class MeshDataT>
|
||||
bool MeshPredictionSchemeMultiParallelogramEncoder<DataTypeT, TransformT,
|
||||
MeshDataT>::
|
||||
ComputeCorrectionValues(const DataTypeT *in_data, CorrType *out_corr,
|
||||
int size, int num_components,
|
||||
const PointIndex * /* entry_to_point_id_map */) {
|
||||
this->transform().Init(in_data, size, num_components);
|
||||
const CornerTable *const table = this->mesh_data().corner_table();
|
||||
const std::vector<int32_t> *const vertex_to_data_map =
|
||||
this->mesh_data().vertex_to_data_map();
|
||||
|
||||
// For storage of prediction values (already initialized to zero).
|
||||
std::unique_ptr<DataTypeT[]> pred_vals(new DataTypeT[num_components]());
|
||||
std::unique_ptr<DataTypeT[]> parallelogram_pred_vals(
|
||||
new DataTypeT[num_components]());
|
||||
|
||||
// We start processing from the end because this prediction uses data from
|
||||
// previous entries that could be overwritten when an entry is processed.
|
||||
for (int p =
|
||||
static_cast<int>(this->mesh_data().data_to_corner_map()->size() - 1);
|
||||
p > 0; --p) {
|
||||
const CornerIndex start_corner_id =
|
||||
this->mesh_data().data_to_corner_map()->at(p);
|
||||
|
||||
// Go over all corners attached to the vertex and compute the predicted
|
||||
// value from the parallelograms defined by their opposite faces.
|
||||
CornerIndex corner_id(start_corner_id);
|
||||
int num_parallelograms = 0;
|
||||
for (int i = 0; i < num_components; ++i) {
|
||||
pred_vals[i] = static_cast<DataTypeT>(0);
|
||||
}
|
||||
while (corner_id != kInvalidCornerIndex) {
|
||||
if (ComputeParallelogramPrediction(
|
||||
p, corner_id, table, *vertex_to_data_map, in_data, num_components,
|
||||
parallelogram_pred_vals.get())) {
|
||||
for (int c = 0; c < num_components; ++c) {
|
||||
pred_vals[c] += parallelogram_pred_vals[c];
|
||||
}
|
||||
++num_parallelograms;
|
||||
}
|
||||
|
||||
// Proceed to the next corner attached to the vertex.
|
||||
corner_id = table->SwingRight(corner_id);
|
||||
if (corner_id == start_corner_id) {
|
||||
corner_id = kInvalidCornerIndex;
|
||||
}
|
||||
}
|
||||
const int dst_offset = p * num_components;
|
||||
if (num_parallelograms == 0) {
|
||||
// No parallelogram was valid.
|
||||
// We use the last encoded point as a reference.
|
||||
const int src_offset = (p - 1) * num_components;
|
||||
this->transform().ComputeCorrection(
|
||||
in_data + dst_offset, in_data + src_offset, out_corr + dst_offset);
|
||||
} else {
|
||||
// Compute the correction from the predicted value.
|
||||
for (int c = 0; c < num_components; ++c) {
|
||||
pred_vals[c] /= num_parallelograms;
|
||||
}
|
||||
this->transform().ComputeCorrection(in_data + dst_offset, pred_vals.get(),
|
||||
out_corr + dst_offset);
|
||||
}
|
||||
}
|
||||
// First element is always fixed because it cannot be predicted.
|
||||
for (int i = 0; i < num_components; ++i) {
|
||||
pred_vals[i] = static_cast<DataTypeT>(0);
|
||||
}
|
||||
this->transform().ComputeCorrection(in_data, pred_vals.get(), out_corr);
|
||||
return true;
|
||||
}
|
||||
|
||||
} // namespace draco
|
||||
|
||||
#endif // DRACO_COMPRESSION_ATTRIBUTES_PREDICTION_SCHEMES_MESH_PREDICTION_SCHEME_MULTI_PARALLELOGRAM_ENCODER_H_
|
||||
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Reference in New Issue