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WIP version of a LWO file loader. Not working yet. 

git-svn-id: https://assimp.svn.sourceforge.net/svnroot/assimp/trunk@82 67173fc5-114c-0410-ac8e-9d2fd5bffc1f
pull/1/head
aramis_acg 2008-08-07 22:27:17 +00:00
parent 11f630e209
commit 42ef23e745
8 changed files with 1080 additions and 18 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

65
code/ByteSwap.h
View File

@ -44,6 +44,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#define AI_BYTESWAP_H_INC
#include "../include/aiAssert.h"
#include "../include/aiTypes.h"
namespace Assimp
{
@ -61,26 +62,39 @@ class ByteSwap
public:
//! Swap the byte oder of 2 byte of data
//! \param szOut Buffer to be swapped
static inline void Swap2(char* szOut)
static inline void Swap2(void* _szOut)
{
ai_assert(NULL != szOut);
ai_assert(NULL != _szOut);
int8_t* szOut = (int8_t*)_szOut;
std::swap(szOut[0],szOut[1]);
}
//! Swap the byte oder of 4 byte of data
//! \param szOut Buffer to be swapped
static inline void Swap4(char* szOut)
static inline void Swap4(void* _szOut)
{
ai_assert(NULL != szOut);
#if _MSC_VER >= 1400 && (defined _M_X86)
__asm
{
mov edi, _szOut
mov eax, dword_ptr[edi]
bswap eax
mov dword_ptr[edi], eax
};
#else
ai_assert(NULL != _szOut);
int8_t* szOut = (int8_t*)_szOut;
std::swap(szOut[0],szOut[3]);
std::swap(szOut[1],szOut[2]);
#endif
}
//! Swap the byte oder of 8 byte of data
//! \param szOut Buffer to be swapped
static inline void Swap8(char* szOut)
static inline void Swap8(void* _szOut)
{
ai_assert(NULL != szOut);
ai_assert(NULL != _szOut);
int8_t* szOut = (int8_t*)_szOut;
std::swap(szOut[0],szOut[7]);
std::swap(szOut[1],szOut[6]);
std::swap(szOut[2],szOut[5]);
@ -91,47 +105,54 @@ public:
//! \param fOut Float value to be swapped
static inline void Swap(float* fOut)
{
Swap4((char*)fOut);
Swap4(fOut);
}
//! Swap a double precision float
//! \param fOut Double value to be swapped
static inline void Swap(double* fOut)
{
Swap8((char*)fOut);
Swap8(fOut);
}
//! Swap a 16 bit integer
//! \param fOut Integer to be swapped
static inline void Swap(int16_t* fOut)
{
Swap2((char*)fOut);
Swap2(fOut);
}
//! Swap a 32 bit integer
//! \param fOut Integer to be swapped
static inline void Swap(int32_t* fOut)
{
Swap4((char*)fOut);
Swap4(fOut);
}
//! Swap a 64 bit integer
//! \param fOut Integer to be swapped
static inline void Swap(int64_t* fOut)
{
Swap8((char*)fOut);
Swap8(fOut);
}
};
};
// byteswap macros for BigEndian support
// byteswap macros for BigEndian/LittleEndian support
#if (defined AI_BUILD_BIG_ENDIAN)
# define AI_SWAP2(p) ByteSwap::Swap2((char*)&(p))
# define AI_SWAP4(p) ByteSwap::Swap4((char*)&(p))
# define AI_SWAP8(p) ByteSwap::Swap8((char*)&(p))
# define AI_SWAP2P(p) ByteSwap::Swap2((char*)(p))
# define AI_SWAP4P(p) ByteSwap::Swap4((char*)(p))
# define AI_SWAP8P(p) ByteSwap::Swap8((char*)(p))
# define AI_LSWAP2(p)
# define AI_LSWAP4(p)
# define AI_LSWAP8(p)
# define AI_LSWAP2P(p)
# define AI_LSWAP4P(p)
# define AI_LSWAP8P(p)
# define LE_NCONST const
# define AI_SWAP2(p) ByteSwap::Swap2(&(p))
# define AI_SWAP4(p) ByteSwap::Swap4(&(p))
# define AI_SWAP8(p) ByteSwap::Swap8(&(p))
# define AI_SWAP2P(p) ByteSwap::Swap2((p))
# define AI_SWAP4P(p) ByteSwap::Swap4((p))
# define AI_SWAP8P(p) ByteSwap::Swap8((p))
# define BE_NCONST
#else
# define AI_SWAP2(p)
@ -141,7 +162,15 @@ public:
# define AI_SWAP4P(p)
# define AI_SWAP8P(p)
# define BE_NCONST const
# define AI_LSWAP2(p) ByteSwap::Swap2(&(p))
# define AI_LSWAP4(p) ByteSwap::Swap4(&(p))
# define AI_LSWAP8(p) ByteSwap::Swap8(&(p))
# define AI_LSWAP2P(p) ByteSwap::Swap2((p))
# define AI_LSWAP4P(p) ByteSwap::Swap4((p))
# define AI_LSWAP8P(p) ByteSwap::Swap8((p))
# define LE_NCONST
#endif
#endif //!! AI_BYTESWAP_H_INC

57
code/IFF.h 100644
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@ -0,0 +1,57 @@
// Definitions for the Interchange File Format (IFF)
// Alexander Gessler, 2006
// Adapted for Assimp August 2008
#ifndef AI_IFF_H_INCLUDED
#define AI_IFF_H_INCLUDED
#include "ByteSwap.h"
namespace Assimp {
namespace IFF {
//! Describes an IFF chunk header
struct ChunkHeader
{
//! Type of the chunk header - FourCC
uint32_t type;
//! Length of the chunk data, in bytes
uint32_t length;
};
#define AI_IFF_FOURCC(a,b,c,d) ((uint32_t) (((uint8_t)a << 24u) | \
((uint8_t)b << 16u) | ((uint8_t)c << 8u) | ((uint8_t)d)))
#define AI_IFF_FOURCC_FORM AI_IFF_FOURCC('F','O','R','M')
/////////////////////////////////////////////////////////////////////////////////
//! Read the file header and return the type of the file and its size
//! @param outFile Pointer to the file data. The buffer must at
//! least be 12 bytes large.
//! @param fileType Receives the type of the file
//! @return 0 if everything was OK, otherwise an error message
/////////////////////////////////////////////////////////////////////////////////
inline const char* ReadHeader(const uint8_t* outFile,uint32_t& fileType)
{
LE_NCONST ChunkHeader* head = (LE_NCONST ChunkHeader*) outFile;
AI_LSWAP4(head->length);
AI_LSWAP4(head->type);
if(AI_IFF_FOURCC_FORM != head->type)
{
return "The file is not an IFF file: FORM chunk is missing";
}
fileType = *((uint32_t*)(head+1));
AI_LSWAP4(fileType);
return 0;
}
}}
#endif // !! AI_IFF_H_INCLUDED

6
code/Importer.cpp
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@ -98,6 +98,9 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#if (!defined AI_BUILD_NO_STL_IMPORTER)
# include "STLLoader.h"
#endif
#if (!defined AI_BUILD_NO_LWO_IMPORTER)
# include "LWOLoader.h"
#endif
// PostProcess-Steps
#if (!defined AI_BUILD_NO_CALCTANGENTS_PROCESS)
@ -195,6 +198,9 @@ Importer::Importer() :
#if (!defined AI_BUILD_NO_STL_IMPORTER)
mImporter.push_back( new STLImporter());
#endif
#if (!defined AI_BUILD_NO_LWO_IMPORTER)
mImporter.push_back( new LWOImporter());
#endif
// add an instance of each post processing step here in the order
// of sequence it is executed

300
code/LWOFileData.h 100644
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@ -0,0 +1,300 @@
/*
Open Asset Import Library (ASSIMP)
----------------------------------------------------------------------
Copyright (c) 2006-2008, ASSIMP Development Team
All rights reserved.
Redistribution and use of this software in source and binary forms,
with or without modification, are permitted provided that the
following conditions are met:
* Redistributions of source code must retain the above
copyright notice, this list of conditions and the
following disclaimer.
* Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the
following disclaimer in the documentation and/or other
materials provided with the distribution.
* Neither the name of the ASSIMP team, nor the names of its
contributors may be used to endorse or promote products
derived from this software without specific prior
written permission of the ASSIMP Development Team.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
----------------------------------------------------------------------
*/
/** @file Defines chunk constants used by the LWO file format
The chunks are taken from LWO2.h, found in the sourcecode of
a project called Nxabega (http://www.sourceforge.net/projects/nxabega).
I assume they are from the official LightWave SDK headers.
Original copyright notice: "Ernie Wright 17 Sep 00"
*/
#ifndef AI_LWO_FILEDATA_INCLUDED
#define AI_LWO_FILEDATA_INCLUDED
#include "IFF.h"
#include "../include/aiMesh.h"
namespace Assimp {
namespace LWO {
#define AI_LWO_FOURCC_LWOB AI_IFF_FOURCC('L','W','O','B')
#define AI_LWO_FOURCC_LWO2 AI_IFF_FOURCC('L','W','O','2')
// chunks specific to the LWOB format
#define AI_LWO_SRFS AI_IFF_FOURCC('S','R','F','S')
#define AI_LWO_FLAG AI_IFF_FOURCC('F','L','A','G')
#define AI_LWO_VLUM AI_IFF_FOURCC('V','L','U','M')
#define AI_LWO_VDIF AI_IFF_FOURCC('V','D','I','F')
#define AI_LWO_VSPC AI_IFF_FOURCC('V','S','P','C')
#define AI_LWO_RFLT AI_IFF_FOURCC('R','F','L','T')
#define AI_LWO_BTEX AI_IFF_FOURCC('B','T','E','X')
#define AI_LWO_CTEX AI_IFF_FOURCC('C','T','E','X')
#define AI_LWO_DTEX AI_IFF_FOURCC('D','T','E','X')
#define AI_LWO_LTEX AI_IFF_FOURCC('L','T','E','X')
#define AI_LWO_RTEX AI_IFF_FOURCC('R','T','E','X')
#define AI_LWO_STEX AI_IFF_FOURCC('S','T','E','X')
#define AI_LWO_TTEX AI_IFF_FOURCC('T','T','E','X')
#define AI_LWO_TFLG AI_IFF_FOURCC('T','F','L','G')
#define AI_LWO_TSIZ AI_IFF_FOURCC('T','S','I','Z')
#define AI_LWO_TCTR AI_IFF_FOURCC('T','C','T','R')
#define AI_LWO_TFAL AI_IFF_FOURCC('T','F','A','L')
#define AI_LWO_TVEL AI_IFF_FOURCC('T','V','E','L')
#define AI_LWO_TCLR AI_IFF_FOURCC('T','C','L','R')
#define AI_LWO_TVAL AI_IFF_FOURCC('T','V','A','L')
#define AI_LWO_TAMP AI_IFF_FOURCC('T','A','M','P')
#define AI_LWO_TIMG AI_IFF_FOURCC('T','I','M','G')
#define AI_LWO_TAAS AI_IFF_FOURCC('T','A','A','S')
#define AI_LWO_TREF AI_IFF_FOURCC('T','R','E','F')
#define AI_LWO_TOPC AI_IFF_FOURCC('T','O','P','C')
#define AI_LWO_SDAT AI_IFF_FOURCC('S','D','A','T')
#define AI_LWO_TFP0 AI_IFF_FOURCC('T','F','P','0')
#define AI_LWO_TFP1 AI_IFF_FOURCC('T','F','P','1')
/* top-level chunks */
#define AI_LWO_LAYR AI_IFF_FOURCC('L','A','Y','R')
#define AI_LWO_TAGS AI_IFF_FOURCC('T','A','G','S')
#define AI_LWO_PNTS AI_IFF_FOURCC('P','N','T','S')
#define AI_LWO_BBOX AI_IFF_FOURCC('B','B','O','X')
#define AI_LWO_VMAP AI_IFF_FOURCC('V','M','A','P')
#define AI_LWO_VMAD AI_IFF_FOURCC('V','M','A','D')
#define AI_LWO_POLS AI_IFF_FOURCC('P','O','L','S')
#define AI_LWO_PTAG AI_IFF_FOURCC('P','T','A','G')
#define AI_LWO_ENVL AI_IFF_FOURCC('E','N','V','L')
#define AI_LWO_CLIP AI_IFF_FOURCC('C','L','I','P')
#define AI_LWO_SURF AI_IFF_FOURCC('S','U','R','F')
#define AI_LWO_DESC AI_IFF_FOURCC('D','E','S','C')
#define AI_LWO_TEXT AI_IFF_FOURCC('T','E','X','T')
#define AI_LWO_ICON AI_IFF_FOURCC('I','C','O','N')
/* polygon types */
#define AI_LWO_FACE AI_IFF_FOURCC('F','A','C','E')
#define AI_LWO_CURV AI_IFF_FOURCC('C','U','R','V')
#define AI_LWO_PTCH AI_IFF_FOURCC('P','T','C','H')
#define AI_LWO_MBAL AI_IFF_FOURCC('M','B','A','L')
#define AI_LWO_BONE AI_IFF_FOURCC('B','O','N','E')
/* polygon tags */
#define AI_LWO_SURF AI_IFF_FOURCC('S','U','R','F')
#define AI_LWO_PART AI_IFF_FOURCC('P','A','R','T')
#define AI_LWO_SMGP AI_IFF_FOURCC('S','M','G','P')
/* envelopes */
#define AI_LWO_PRE AI_IFF_FOURCC('P','R','E',' ')
#define AI_LWO_POST AI_IFF_FOURCC('P','O','S','T')
#define AI_LWO_KEY AI_IFF_FOURCC('K','E','Y',' ')
#define AI_LWO_SPAN AI_IFF_FOURCC('S','P','A','N')
#define AI_LWO_TCB AI_IFF_FOURCC('T','C','B',' ')
#define AI_LWO_HERM AI_IFF_FOURCC('H','E','R','M')
#define AI_LWO_BEZI AI_IFF_FOURCC('B','E','Z','I')
#define AI_LWO_BEZ2 AI_IFF_FOURCC('B','E','Z','2')
#define AI_LWO_LINE AI_IFF_FOURCC('L','I','N','E')
#define AI_LWO_STEP AI_IFF_FOURCC('S','T','E','P')
/* clips */
#define AI_LWO_STIL AI_IFF_FOURCC('S','T','I','L')
#define AI_LWO_ISEQ AI_IFF_FOURCC('I','S','E','Q')
#define AI_LWO_ANIM AI_IFF_FOURCC('A','N','I','M')
#define AI_LWO_XREF AI_IFF_FOURCC('X','R','E','F')
#define AI_LWO_STCC AI_IFF_FOURCC('S','T','C','C')
#define AI_LWO_TIME AI_IFF_FOURCC('T','I','M','E')
#define AI_LWO_CONT AI_IFF_FOURCC('C','O','N','T')
#define AI_LWO_BRIT AI_IFF_FOURCC('B','R','I','T')
#define AI_LWO_SATR AI_IFF_FOURCC('S','A','T','R')
#define AI_LWO_HUE AI_IFF_FOURCC('H','U','E',' ')
#define AI_LWO_GAMM AI_IFF_FOURCC('G','A','M','M')
#define AI_LWO_NEGA AI_IFF_FOURCC('N','E','G','A')
#define AI_LWO_IFLT AI_IFF_FOURCC('I','F','L','T')
#define AI_LWO_PFLT AI_IFF_FOURCC('P','F','L','T')
/* surfaces */
#define AI_LWO_COLR AI_IFF_FOURCC('C','O','L','R')
#define AI_LWO_LUMI AI_IFF_FOURCC('L','U','M','I')
#define AI_LWO_DIFF AI_IFF_FOURCC('D','I','F','F')
#define AI_LWO_SPEC AI_IFF_FOURCC('S','P','E','C')
#define AI_LWO_GLOS AI_IFF_FOURCC('G','L','O','S')
#define AI_LWO_REFL AI_IFF_FOURCC('R','E','F','L')
#define AI_LWO_RFOP AI_IFF_FOURCC('R','F','O','P')
#define AI_LWO_RIMG AI_IFF_FOURCC('R','I','M','G')
#define AI_LWO_RSAN AI_IFF_FOURCC('R','S','A','N')
#define AI_LWO_TRAN AI_IFF_FOURCC('T','R','A','N')
#define AI_LWO_TROP AI_IFF_FOURCC('T','R','O','P')
#define AI_LWO_TIMG AI_IFF_FOURCC('T','I','M','G')
#define AI_LWO_RIND AI_IFF_FOURCC('R','I','N','D')
#define AI_LWO_TRNL AI_IFF_FOURCC('T','R','N','L')
#define AI_LWO_BUMP AI_IFF_FOURCC('B','U','M','P')
#define AI_LWO_SMAN AI_IFF_FOURCC('S','M','A','N')
#define AI_LWO_SIDE AI_IFF_FOURCC('S','I','D','E')
#define AI_LWO_CLRH AI_IFF_FOURCC('C','L','R','H')
#define AI_LWO_CLRF AI_IFF_FOURCC('C','L','R','F')
#define AI_LWO_ADTR AI_IFF_FOURCC('A','D','T','R')
#define AI_LWO_SHRP AI_IFF_FOURCC('S','H','R','P')
#define AI_LWO_LINE AI_IFF_FOURCC('L','I','N','E')
#define AI_LWO_LSIZ AI_IFF_FOURCC('L','S','I','Z')
#define AI_LWO_ALPH AI_IFF_FOURCC('A','L','P','H')
#define AI_LWO_AVAL AI_IFF_FOURCC('A','V','A','L')
#define AI_LWO_GVAL AI_IFF_FOURCC('G','V','A','L')
#define AI_LWO_BLOK AI_IFF_FOURCC('B','L','O','K')
/* texture layer */
#define AI_LWO_TYPE AI_IFF_FOURCC('T','Y','P','E')
#define AI_LWO_CHAN AI_IFF_FOURCC('C','H','A','N')
#define AI_LWO_NAME AI_IFF_FOURCC('N','A','M','E')
#define AI_LWO_ENAB AI_IFF_FOURCC('E','N','A','B')
#define AI_LWO_OPAC AI_IFF_FOURCC('O','P','A','C')
#define AI_LWO_FLAG AI_IFF_FOURCC('F','L','A','G')
#define AI_LWO_PROJ AI_IFF_FOURCC('P','R','O','J')
#define AI_LWO_STCK AI_IFF_FOURCC('S','T','C','K')
#define AI_LWO_TAMP AI_IFF_FOURCC('T','A','M','P')
/* texture coordinates */
#define AI_LWO_TMAP AI_IFF_FOURCC('T','M','A','P')
#define AI_LWO_AXIS AI_IFF_FOURCC('A','X','I','S')
#define AI_LWO_CNTR AI_IFF_FOURCC('C','N','T','R')
#define AI_LWO_SIZE AI_IFF_FOURCC('S','I','Z','E')
#define AI_LWO_ROTA AI_IFF_FOURCC('R','O','T','A')
#define AI_LWO_OREF AI_IFF_FOURCC('O','R','E','F')
#define AI_LWO_FALL AI_IFF_FOURCC('F','A','L','L')
#define AI_LWO_CSYS AI_IFF_FOURCC('C','S','Y','S')
/* image map */
#define AI_LWO_IMAP AI_IFF_FOURCC('I','M','A','P')
#define AI_LWO_IMAG AI_IFF_FOURCC('I','M','A','G')
#define AI_LWO_WRAP AI_IFF_FOURCC('W','R','A','P')
#define AI_LWO_WRPW AI_IFF_FOURCC('W','R','P','W')
#define AI_LWO_WRPH AI_IFF_FOURCC('W','R','P','H')
#define AI_LWO_VMAP AI_IFF_FOURCC('V','M','A','P')
#define AI_LWO_AAST AI_IFF_FOURCC('A','A','S','T')
#define AI_LWO_PIXB AI_IFF_FOURCC('P','I','X','B')
/* procedural */
#define AI_LWO_PROC AI_IFF_FOURCC('P','R','O','C')
#define AI_LWO_COLR AI_IFF_FOURCC('C','O','L','R')
#define AI_LWO_VALU AI_IFF_FOURCC('V','A','L','U')
#define AI_LWO_FUNC AI_IFF_FOURCC('F','U','N','C')
#define AI_LWO_FTPS AI_IFF_FOURCC('F','T','P','S')
#define AI_LWO_ITPS AI_IFF_FOURCC('I','T','P','S')
#define AI_LWO_ETPS AI_IFF_FOURCC('E','T','P','S')
/* gradient */
#define AI_LWO_GRAD AI_IFF_FOURCC('G','R','A','D')
#define AI_LWO_GRST AI_IFF_FOURCC('G','R','S','T')
#define AI_LWO_GREN AI_IFF_FOURCC('G','R','E','N')
#define AI_LWO_PNAM AI_IFF_FOURCC('P','N','A','M')
#define AI_LWO_INAM AI_IFF_FOURCC('I','N','A','M')
#define AI_LWO_GRPT AI_IFF_FOURCC('G','R','P','T')
#define AI_LWO_FKEY AI_IFF_FOURCC('F','K','E','Y')
#define AI_LWO_IKEY AI_IFF_FOURCC('I','K','E','Y')
/* shader */
#define AI_LWO_SHDR AI_IFF_FOURCC('S','H','D','R')
#define AI_LWO_DATA AI_IFF_FOURCC('D','A','T','A')
// ---------------------------------------------------------------------------
/** \brief Data structure for a face in a LWO file
*/
struct Face : public aiFace
{
Face() : surfaceIndex(0) {}
unsigned int surfaceIndex;
};
// ---------------------------------------------------------------------------
/** \brief Data structure for a LWO file texture
*/
struct Texture
{
Texture()
: mStrength(1.0f)
{}
//! File name of the texture
std::string mFileName;
//! Strength of the texture
float mStrength;
};
// ---------------------------------------------------------------------------
/** \brief Data structure for a LWO file surface (= material)
*/
struct Surface
{
Surface()
: bDoubleSided (false)
, mDiffuseValue (1.0f)
, mSpecularValue (1.0f)
, mTransparency (0.0f)
, mGlossiness (0.0f)
, mMaximumSmoothAngle (90.0f)
{}
//! Name of the surface
std::string mName;
//! Color of the surface
aiColor3D mColor;
//! true for two-sided materials
bool bDoubleSided;
//! Various material parameters
float mDiffuseValue,mSpecularValue,mTransparency,mGlossiness;
//! Maximum angle between two adjacent triangles
//! that they can be smoothed
float mMaximumSmoothAngle;
//! Textures
Texture mColorTexture,mDiffuseTexture,mSpecularTexture,
mBumpTexture,mTransparencyTexture;
};
}}
#endif // !! AI_LWO_FILEDATA_INCLUDED

487
code/LWOLoader.cpp 100644
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@ -0,0 +1,487 @@
/*
---------------------------------------------------------------------------
Open Asset Import Library (ASSIMP)
---------------------------------------------------------------------------
Copyright (c) 2006-2008, ASSIMP Development Team
All rights reserved.
Redistribution and use of this software in source and binary forms,
with or without modification, are permitted provided that the following
conditions are met:
* Redistributions of source code must retain the above
copyright notice, this list of conditions and the
following disclaimer.
* Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the
following disclaimer in the documentation and/or other
materials provided with the distribution.
* Neither the name of the ASSIMP team, nor the names of its
contributors may be used to endorse or promote products
derived from this software without specific prior
written permission of the ASSIMP Development Team.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
---------------------------------------------------------------------------
*/
/** @file Implementation of the LWO importer class */
// internal headers
#include "LWOLoader.h"
#include "MaterialSystem.h"
#include "ByteSwap.h"
// public assimp headers
#include "../include/IOStream.h"
#include "../include/IOSystem.h"
#include "../include/aiMesh.h"
#include "../include/aiScene.h"
#include "../include/aiAssert.h"
#include "../include/DefaultLogger.h"
// boost headers
#include <boost/scoped_ptr.hpp>
using namespace Assimp;
// ------------------------------------------------------------------------------------------------
// Constructor to be privately used by Importer
LWOImporter::LWOImporter()
{
}
// ------------------------------------------------------------------------------------------------
// Destructor, private as well
LWOImporter::~LWOImporter()
{
mFaces.clear();
mTempPoints.clear();
mSurfaces.clear();
}
// ------------------------------------------------------------------------------------------------
// Returns whether the class can handle the format of the given file.
bool LWOImporter::CanRead( const std::string& pFile, IOSystem* pIOHandler) const
{
// simple check of file extension is enough for the moment
std::string::size_type pos = pFile.find_last_of('.');
// no file extension - can't read
if( pos == std::string::npos)return false;
std::string extension = pFile.substr( pos);
if (extension.length() < 4)return false;
if (extension[0] != '.')return false;
if (extension[1] != 'l' && extension[1] != 'L')return false;
if (extension[2] != 'w' && extension[2] != 'W')return false;
if (extension[3] != 'o' && extension[3] != 'O')return false;
return true;
}
// ------------------------------------------------------------------------------------------------
// Imports the given file into the given scene structure.
void LWOImporter::InternReadFile( const std::string& pFile,
aiScene* pScene,
IOSystem* pIOHandler)
{
boost::scoped_ptr<IOStream> file( pIOHandler->Open( pFile, "rb"));
// Check whether we can read from the file
if( file.get() == NULL)
throw new ImportErrorException( "Failed to open LWO file " + pFile + ".");
if((this->fileSize = (unsigned int)file->FileSize()) < 12)
throw new ImportErrorException("LWO: The file is too small to contain the IFF header");
// allocate storage and copy the contents of the file to a memory buffer
std::vector< uint8_t > mBuffer(fileSize);
file->Read( &mBuffer[0], 1, fileSize);
this->pScene = pScene;
// determine the type of the file
uint32_t fileType;
const char* sz = IFF::ReadHeader(&mBuffer[0],fileType);
if (sz)throw new ImportErrorException(sz);
mFileBuffer = &mBuffer[0] + 12;
fileSize -= 12;
try
{
// old lightwave file format (prior to v6)
if (AI_LWO_FOURCC_LWOB == fileType)
this->LoadLWOBFile();
// new lightwave format
else if (AI_LWO_FOURCC_LWO2 == fileType)
this->LoadLWO2File();
// we don't know this format
else
{
char szBuff[5];
szBuff[0] = (char)(fileType >> 24u);
szBuff[1] = (char)(fileType >> 16u);
szBuff[2] = (char)(fileType >> 8u);
szBuff[3] = (char)(fileType);
throw new ImportErrorException(std::string("Unknown LWO sub format: ") + szBuff);
}
// generate a default surface if necessary
if (mSurfaces.empty())
mSurfaces.push_back(LWO::Surface());
// now sort all faces by the surfaces assigned to them
typedef std::vector<unsigned int> SortedRep;
std::vector<SortedRep> pSorted(mSurfaces.size());
unsigned int i = 0;
for (FaceList::iterator it = mFaces.begin(), end = mFaces.end();
it != end;++it,++i)
{
if ((*it).surfaceIndex >= mSurfaces.size())
{
DefaultLogger::get()->warn("LWO: Invalid face surface index");
(*it).surfaceIndex = mSurfaces.size()-1;
}
pSorted[(*it).surfaceIndex].push_back(i);
}
// now generate output meshes
for (unsigned int p = 0; p < mSurfaces.size();++p)
if (!pSorted[p].empty())pScene->mNumMeshes++;
if (!(pScene->mNumMaterials = pScene->mNumMeshes))
throw new ImportErrorException("LWO: There are no meshes");
pScene->mMeshes = new aiMesh*[pScene->mNumMeshes];
pScene->mMaterials = new aiMaterial*[pScene->mNumMaterials];
for (unsigned int p = 0,i = 0;i < mSurfaces.size();++i)
{
SortedRep& sorted = pSorted[i];
if (sorted.empty())continue;
// generate the mesh
aiMesh* mesh = pScene->mMeshes[p] = new aiMesh();
mesh->mNumFaces = sorted.size();
for (SortedRep::const_iterator it = sorted.begin(), end = sorted.end();
it != end;++it)
{
mesh->mNumVertices += mFaces[*it].mNumIndices;
}
mesh->mVertices = new aiVector3D[mesh->mNumVertices];
mesh->mFaces = new aiFace[mesh->mNumFaces];
mesh->mMaterialIndex = p;
// now convert all faces
unsigned int vert = 0;
for (SortedRep::const_iterator it = sorted.begin(), end = sorted.end();
it != end;++it)
{
LWO::Face& face = mFaces[*it];
// copy all vertices
for (unsigned int q = 0; q < face.mNumIndices;++q)
{
*mesh->mVertices++ = mTempPoints[face.mIndices[q]];
face.mIndices[q] = vert++;
}
mesh->mFaces->mIndices = face.mIndices;
mesh->mFaces->mNumIndices = face.mNumIndices;
face.mIndices = NULL; // make sure it won't be deleted
mesh->mFaces++;
}
mesh->mFaces -= mesh->mNumFaces;
mesh->mVertices -= mesh->mNumVertices;
// generate the corresponding material
MaterialHelper* pcMat = new MaterialHelper();
pScene->mMaterials[p] = pcMat;
// todo
++p;
}
}
// make sure the arrays are cleaned up ...
catch (ImportErrorException* ex)
{
this->~LWOImporter();
throw ex;
}
this->~LWOImporter();
}
// ------------------------------------------------------------------------------------------------
void LWOImporter::CountVertsAndFaces(unsigned int& verts, unsigned int& faces,
LE_NCONST uint8_t*& cursor, const uint8_t* const end, unsigned int max)
{
while (cursor < end && max--)
{
uint16_t numIndices = *((uint16_t*)cursor);cursor+=2;
verts += numIndices;faces++;
cursor += numIndices*2;
int16_t surface = *((uint16_t*)cursor);cursor+=2;
if (surface < 0)
{
// there are detail polygons
numIndices = *((uint16_t*)cursor);cursor+=2;
CountVertsAndFaces(verts,faces,cursor,end,numIndices);
}
}
}
// ------------------------------------------------------------------------------------------------
void LWOImporter::CopyFaceIndices(LWOImporter::FaceList::iterator& it,LE_NCONST uint8_t*& cursor,
const uint8_t* const end, unsigned int max)
{
while (cursor < end && max--)
{
LWO::Face& face = *it;++it;
face.mNumIndices = *((uint16_t*)cursor);
if (cursor + face.mNumIndices*2 + 4 >= end)break;
face.mIndices = new unsigned int[face.mNumIndices];
for (unsigned int i = 0; i < face.mNumIndices;++i)
{
face.mIndices[i] = *((uint16_t*)(cursor+=2));
if (face.mIndices[i] >= mTempPoints.size())
{
face.mIndices[i] = mTempPoints.size()-1;
DefaultLogger::get()->warn("LWO: Face index is out of range");
}
}
cursor+=2;
int16_t surface = *((uint16_t*)cursor);cursor+=2;
if (surface < 0)
{
surface *= -1;
// there are detail polygons
uint16_t numPolygons = *((uint16_t*)cursor);cursor+=2;
if (cursor < end)CopyFaceIndices(it,cursor,end,numPolygons);
}
face.surfaceIndex = surface-1;
}
}
// ------------------------------------------------------------------------------------------------
void LWOImporter::LoadLWOBSurface(unsigned int size)
{
uint32_t iCursor = 0;
mSurfaces.push_back( LWO::Surface () );
LWO::Surface& surf = mSurfaces.back();
LWO::Texture* pTex = NULL;
// at first we'll need to read the name of the surface
const uint8_t* sz = mFileBuffer;
while (*mFileBuffer)
{
if (++iCursor > size)throw new ImportErrorException("LWOB: Invalid file, surface name is too long");
++mFileBuffer;
}
unsigned int len = unsigned int (mFileBuffer-sz);
surf.mName = std::string((const char*)sz,len);
mFileBuffer += 1-(len & 1); // skip one byte if the length of the string is odd
while (true)
{
if ((iCursor += sizeof(IFF::ChunkHeader)) > size)break;
LE_NCONST IFF::ChunkHeader* head = (LE_NCONST IFF::ChunkHeader*)mFileBuffer;
AI_LSWAP4(head->length);
AI_LSWAP4(head->type);
if ((iCursor += head->length) > size)
{
throw new ImportErrorException("LWOB: Invalid file, the size attribute of "
"a surface sub chunk points behind the end of the file");
}
mFileBuffer += sizeof(IFF::ChunkHeader);
switch (head->type)
{
// diffuse color
case AI_LWO_COLR:
{
if (head->length < 3)
{
DefaultLogger::get()->warn("LWO: COLR chunk is expected to be at least 3 bytes in size");
break;
}
surf.mColor.r = *mFileBuffer++ / 255.0f;
surf.mColor.g = *mFileBuffer++ / 255.0f;
surf.mColor.b = *mFileBuffer / 255.0f;
break;
}
// diffuse strength ... hopefully
case AI_LWO_DIFF:
{
AI_LSWAP2(mFileBuffer);
surf.mDiffuseValue = *((int16_t*)mFileBuffer) / 255.0f;
break;
}
// specular strength ... hopefully
case AI_LWO_SPEC:
{
AI_LSWAP2(mFileBuffer);
surf.mSpecularValue = *((int16_t*)mFileBuffer) / 255.0f;
break;
}
// transparency
case AI_LWO_TRAN:
{
AI_LSWAP2(mFileBuffer);
surf.mTransparency = *((int16_t*)mFileBuffer) / 255.0f;
break;
}
// glossiness
case AI_LWO_GLOS:
{
AI_LSWAP2(mFileBuffer);
surf.mGlossiness = float(*((int16_t*)mFileBuffer));
break;
}
// color texture
case AI_LWO_CTEX:
{
pTex = &surf.mColorTexture;
break;
}
// diffuse texture
case AI_LWO_DTEX:
{
pTex = &surf.mDiffuseTexture;
break;
}
// specular texture
case AI_LWO_STEX:
{
pTex = &surf.mSpecularTexture;
break;
}
// bump texture
case AI_LWO_BTEX:
{
pTex = &surf.mBumpTexture;
break;
}
// transparency texture
case AI_LWO_TTEX:
{
pTex = &surf.mTransparencyTexture;
break;
}
// texture path
case AI_LWO_TIMG:
{
if (pTex)
{
unsigned int iCursor = 0;
while (*mFileBuffer)
{
if (++iCursor > head->length)
{
DefaultLogger::get()->warn("LWOB: Invalid file, texture name (TIMG) is too long");
break;
}
++mFileBuffer;
}
unsigned int len = unsigned int (mFileBuffer-sz);
pTex->mFileName = std::string((const char*)sz,len);
}
else DefaultLogger::get()->warn("LWOB: TIMG tag was encuntered although "
"there was no xTEX tag before");
break;
}
// texture strength
case AI_LWO_TVAL:
{
if (pTex)pTex->mStrength = *mFileBuffer / 255.0f;
else DefaultLogger::get()->warn("LWOB: TVAL tag was encuntered "
"although there was no xTEX tag before");
break;
}
}
mFileBuffer += head->length;
}
}
// ------------------------------------------------------------------------------------------------
void LWOImporter::LoadLWOBFile()
{
uint32_t iCursor = 0;
while (true)
{
if ((iCursor += sizeof(IFF::ChunkHeader)) > this->fileSize)break;
LE_NCONST IFF::ChunkHeader* head = (LE_NCONST IFF::ChunkHeader*)mFileBuffer;
AI_LSWAP4(head->length);
AI_LSWAP4(head->type);
if ((iCursor += head->length) > this->fileSize)
{
//throw new ImportErrorException("LWOB: Invalid file, the size attribute of "
// "a chunk points behind the end of the file");
break;
}
mFileBuffer += sizeof(IFF::ChunkHeader);
switch (head->type)
{
// vertex list
case AI_LWO_PNTS:
{
mTempPoints.resize( head->length / 12 );
#ifndef AI_BUILD_BIG_ENDIAN
for (unsigned int i = 0; i < head->length>>2;++i)
ByteSwap::Swap4( mFileBuffer + (i << 2));
#endif
::memcpy(&mTempPoints[0],mFileBuffer,head->length);
break;
}
// face list
case AI_LWO_POLS:
{
// first find out how many faces and vertices we'll finally need
const uint8_t* const end = mFileBuffer + head->length;
LE_NCONST uint8_t* cursor = mFileBuffer;
#ifndef AI_BUILD_BIG_ENDIAN
while (cursor < end)ByteSwap::Swap2(cursor++);
cursor = mFileBuffer;
#endif
unsigned int iNumFaces = 0,iNumVertices = 0;
CountVertsAndFaces(iNumVertices,iNumFaces,cursor,end);
// allocate the output array and copy face indices
if (iNumFaces)
{
this->mTempPoints.resize(iNumVertices);
this->mFaces.resize(iNumFaces);
FaceList::iterator it = this->mFaces.begin();
CopyFaceIndices(it,mFileBuffer,end);
}
break;
}
// surface chunk
case AI_LWO_SURF:
{
LoadLWOBSurface(head->length);
break;
}
}
mFileBuffer += head->length;
}
}
// ------------------------------------------------------------------------------------------------
void LWOImporter::LoadLWO2File()
{
}

158
code/LWOLoader.h 100644
View File

@ -0,0 +1,158 @@
/*
Open Asset Import Library (ASSIMP)
----------------------------------------------------------------------
Copyright (c) 2006-2008, ASSIMP Development Team
All rights reserved.
Redistribution and use of this software in source and binary forms,
with or without modification, are permitted provided that the
following conditions are met:
* Redistributions of source code must retain the above
copyright notice, this list of conditions and the
following disclaimer.
* Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the
following disclaimer in the documentation and/or other
materials provided with the distribution.
* Neither the name of the ASSIMP team, nor the names of its
contributors may be used to endorse or promote products
derived from this software without specific prior
written permission of the ASSIMP Development Team.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
----------------------------------------------------------------------
*/
/** @file Declaration of the LWO importer class. */
#ifndef AI_LWOLOADER_H_INCLUDED
#define AI_LWOLOADER_H_INCLUDED
#include "../include/aiTypes.h"
#include "BaseImporter.h"
#include "LWOFileData.h"
#include <vector>
namespace Assimp {
using namespace LWO;
// ---------------------------------------------------------------------------
/** Clas to load LWO files
*/
class LWOImporter : public BaseImporter
{
friend class Importer;
protected:
/** Constructor to be privately used by Importer */
LWOImporter();
/** Destructor, private as well */
~LWOImporter();
public:
// -------------------------------------------------------------------
/** Returns whether the class can handle the format of the given file.
* See BaseImporter::CanRead() for details. */
bool CanRead( const std::string& pFile, IOSystem* pIOHandler) const;
protected:
// -------------------------------------------------------------------
/** Called by Importer::GetExtensionList() for each loaded importer.
* See BaseImporter::GetExtensionList() for details
*/
void GetExtensionList(std::string& append)
{
append.append("*.lwo");
}
// -------------------------------------------------------------------
/** Imports the given file into the given scene structure.
* See BaseImporter::InternReadFile() for details
*/
void InternReadFile( const std::string& pFile, aiScene* pScene,
IOSystem* pIOHandler);
// -------------------------------------------------------------------
/** Loads a LWO file in the older LWOB format (LW < 6)
*/
void LoadLWOBFile();
// -------------------------------------------------------------------
/** Loads a LWO file in the newer LWO2 format (LW >= 6)
*/
void LoadLWO2File();
// -------------------------------------------------------------------
/** Loads a surface chunk from an LWOB file
*/
void LoadLWOBSurface(unsigned int size);
typedef std::vector<aiVector3D> PointList;
typedef std::vector<LWO::Face> FaceList;
typedef std::vector<LWO::Surface> SurfaceList;
private:
// -------------------------------------------------------------------
/** Count vertices and faces in a LWOB file
*/
void CountVertsAndFaces(unsigned int& verts,
unsigned int& faces,
LE_NCONST uint8_t*& cursor,
const uint8_t* const end,
unsigned int max = 0xffffffff);
// -------------------------------------------------------------------
/** Read vertices and faces in a LWOB file
*/
void CopyFaceIndices(FaceList::iterator& it,
LE_NCONST uint8_t*& cursor,
const uint8_t* const end,
unsigned int max = 0xffffffff);
protected:
/** Temporary point list from the file */
PointList mTempPoints;
/** Temporary face list from the file*/
FaceList mFaces;
/** Temporary surface list from the file */
SurfaceList mSurfaces;
/** file buffer */
LE_NCONST uint8_t* mFileBuffer;
/** Size of the file, in bytes */
unsigned int fileSize;
/** Output scene */
aiScene* pScene;
};
} // end of namespace Assimp
#endif // AI_LWOIMPORTER_H_INCLUDED

1
code/STLLoader.cpp
View File

@ -347,6 +347,7 @@ bool STLImporter::LoadBinaryFile()
sz += sizeof(aiVector3D);
*(vn+1) = *vn;
*(vn+2) = *vn;
vn += 3;
*vp++ = *((aiVector3D*)sz);
sz += sizeof(aiVector3D);

24
workspaces/vc8/assimp.vcproj
View File

@ -734,6 +734,10 @@
RelativePath="..\..\code\Hash.h"
>
</File>
<File
RelativePath="..\..\code\IFF.h"
>
</File>
<File
RelativePath="..\..\code\ImproveCacheLocality.h"
>
@ -1042,6 +1046,18 @@
>
</File>
</Filter>
<Filter
Name="LWO"
>
<File
RelativePath="..\..\code\LWOFileData.h"
>
</File>
<File
RelativePath="..\..\code\LWOLoader.h"
>
</File>
</Filter>
</Filter>
<Filter
Name="sources"
@ -1318,6 +1334,14 @@
>
</File>
</Filter>
<Filter
Name="LWO"
>
<File
RelativePath="..\..\code\LWOLoader.cpp"
>
</File>
</Filter>
</Filter>
<Filter
Name="doc"