implements a DefaultIOSystem that provides access to files bundled with Android Applications
addresses issue #3633pull/3634/head
contriteobserver
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754b2ba434
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/*
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Open Asset Import Library (assimp)
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----------------------------------------------------------------------
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Copyright (c) 2006-2020, assimp team
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All rights reserved.
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Redistribution and use of this software in source and binary forms,
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with or without modification, are permitted provided that the
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following conditions are met:
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* Redistributions of source code must retain the above
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copyright notice, this list of conditions and the
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following disclaimer.
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* Redistributions in binary form must reproduce the above
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copyright notice, this list of conditions and the
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following disclaimer in the documentation and/or other
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materials provided with the distribution.
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* Neither the name of the assimp team, nor the names of its
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contributors may be used to endorse or promote products
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derived from this software without specific prior
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written permission of the assimp team.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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----------------------------------------------------------------------
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*/
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/** @file Android implementation of IOSystem using the standard C file functions.
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* Aimed to ease the access to android assets */
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#if __ANDROID__ and __ANDROID_API__ > 9 and defined(AI_CONFIG_ANDROID_JNI_ASSIMP_MANAGER_SUPPORT)
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#ifndef AI_BUNDLEDASSETIOSYSTEM_H_INC
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#define AI_BUNDLEDASSETIOSYSTEM_H_INC
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#include <android/asset_manager_jni.h>
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#include <assimp/DefaultIOSystem.h>
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#include <assimp/IOStream.hpp>
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namespace Assimp {
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class BundledAssetIOSystem : public Assimp::DefaultIOSystem {
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public:
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AAssetManager* mApkAssetManager;
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BundledAssetIOSystem(JNIEnv* env, jobject assetManager) { mApkAssetManager = AAssetManager_fromJava(env, assetManager); }
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~BundledAssetIOSystem() {};
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bool Exists( const char* pFile) const;
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Assimp::IOStream* Open( const char* pFile, const char* pMode = "rb");
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void Close( Assimp::IOStream* pFile);
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private:
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class AssetIOStream : public Assimp::IOStream {
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AAsset * asset;
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public:
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AssetIOStream(AAsset *asset) { this->asset = asset; };
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~AssetIOStream() { AAsset_close(asset); }
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size_t Read(void* pvBuffer, size_t pSize, size_t pCount) { return AAsset_read(asset, pvBuffer, pSize * pCount);}
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size_t Write(const void* pvBuffer, size_t pSize, size_t pCount) { return 0; };
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aiReturn Seek(size_t pOffset, aiOrigin pOrigin) { return (AAsset_seek(asset, pOffset, pOrigin) >= 0 ? aiReturn_SUCCESS : aiReturn_FAILURE); }
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size_t Tell() const { return(AAsset_getLength(asset) - AAsset_getRemainingLength(asset)); };
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size_t FileSize() const { return AAsset_getLength(asset); }
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void Flush() { }
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};
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};
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} //!ns Assimp
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#endif //AI_BUNDLEDASSETIOSYSTEM_H_INC
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#endif //__ANDROID__ and __ANDROID_API__ > 9 and defined(AI_CONFIG_ANDROID_JNI_ASSIMP_MANAGER_SUPPORT)
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@ -0,0 +1,80 @@
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/*
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---------------------------------------------------------------------------
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Open Asset Import Library (assimp)
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---------------------------------------------------------------------------
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Copyright (c) 2006-2020, assimp team
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All rights reserved.
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Redistribution and use of this software in source and binary forms,
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with or without modification, are permitted provided that the following
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conditions are met:
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* Redistributions of source code must retain the above
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copyright notice, this list of conditions and the
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following disclaimer.
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* Redistributions in binary form must reproduce the above
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copyright notice, this list of conditions and the
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following disclaimer in the documentation and/or other
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materials provided with the distribution.
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* Neither the name of the assimp team, nor the names of its
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contributors may be used to endorse or promote products
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derived from this software without specific prior
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written permission of the assimp team.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
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A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
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LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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---------------------------------------------------------------------------
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*/
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/** @file Android extension of DefaultIOSystem using the standard C file functions */
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#include <assimp/ai_assert.h>
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#include <android/asset_manager.h>
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#include <assimp/DefaultIOStream.h>
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#if __ANDROID__ and __ANDROID_API__ > 9 and defined(AI_CONFIG_ANDROID_JNI_ASSIMP_MANAGER_SUPPORT)
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#include <assimp/port/AndroidJNI/BundledAssetIOSystem.h>
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using namespace Assimp;
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/** Tests for the existence of a file at the given path. */
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bool BundledAssetIOSystem::Exists(const char* pFile) const {
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ai_assert(NULL != mApkAssetManager);
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AAsset * asset = AAssetManager_open(mApkAssetManager, pFile, AASSET_MODE_UNKNOWN);
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if (!asset) { return false; }
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if (asset) AAsset_close(asset);
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return true;
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}
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// -------------------------------------------------------------------
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/** Open a new file with a given path. */
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Assimp::IOStream* BundledAssetIOSystem::Open(const char* pFile, const char* pMode) {
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ai_assert(NULL != mApkAssetManager);
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AAsset * asset = AAssetManager_open(mApkAssetManager, pFile, AASSET_MODE_UNKNOWN);
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if (!asset) { return NULL; }
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return new AssetIOStream(asset);
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}
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// -------------------------------------------------------------------
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/** Closes the given file and releases all resources associated with it. */
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void BundledAssetIOSystem::Close(Assimp::IOStream* pFile) {
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delete reinterpret_cast<AssetIOStream *>(pFile);
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}
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#endif // __ANDROID__ and __ANDROID_API__ > 9 and defined(AI_CONFIG_ANDROID_JNI_ASSIMP_MANAGER_SUPPORT)
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@ -2,5 +2,14 @@ cmake_minimum_required(VERSION 3.10)
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include_directories(./)
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include_directories(./../../)
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add_library(android_jniiosystem STATIC AndroidJNIIOSystem.cpp)
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add_library( # Defines the name of the library.
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android_jniiosystem
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# Implements a shared library.
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STATIC
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# relative path to source file(s).
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AndroidJNIIOSystem.cpp
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BundledAssetIOSystem.cpp
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)
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TARGET_LINK_LIBRARIES(android_jniiosystem android log)
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