diff options
Diffstat (limited to 'libs/assimp/port/AndroidJNI')
| -rw-r--r-- | libs/assimp/port/AndroidJNI/AndroidJNIIOSystem.cpp | 210 | ||||
| -rw-r--r-- | libs/assimp/port/AndroidJNI/BundledAssetIOSystem.cpp | 80 | ||||
| -rw-r--r-- | libs/assimp/port/AndroidJNI/CMakeLists.txt | 16 | ||||
| -rw-r--r-- | libs/assimp/port/AndroidJNI/README.md | 32 |
4 files changed, 338 insertions, 0 deletions
diff --git a/libs/assimp/port/AndroidJNI/AndroidJNIIOSystem.cpp b/libs/assimp/port/AndroidJNI/AndroidJNIIOSystem.cpp new file mode 100644 index 0000000..e0f8123 --- /dev/null +++ b/libs/assimp/port/AndroidJNI/AndroidJNIIOSystem.cpp @@ -0,0 +1,210 @@ +/* +--------------------------------------------------------------------------- +Open Asset Import Library (assimp) +--------------------------------------------------------------------------- + +Copyright (c) 2006-2021, assimp 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 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 Android extension of DefaultIOSystem using the standard C file functions */ + + +#include <assimp/config.h> +#include <android/api-level.h> +#if __ANDROID__ and __ANDROID_API__ > 9 and defined(AI_CONFIG_ANDROID_JNI_ASSIMP_MANAGER_SUPPORT) + +#include <libgen.h> +#include <stdlib.h> +#include <sys/stat.h> +#include <android/log.h> +#include <android/asset_manager.h> +#include <android/asset_manager_jni.h> +#include <android/native_activity.h> +#include <assimp/ai_assert.h> +#include <assimp/port/AndroidJNI/AndroidJNIIOSystem.h> +#include <assimp/DefaultIOStream.h> +#include <fstream> + +using namespace Assimp; + +// ------------------------------------------------------------------------------------------------ +// Constructor. +AndroidJNIIOSystem::AndroidJNIIOSystem(ANativeActivity* activity) +{ + AndroidActivityInit(activity); +} + +AndroidJNIIOSystem::AndroidJNIIOSystem(const char *internalPath, AAssetManager* assetManager) : + mApkWorkspacePath(internalPath), + mApkAssetManager(assetManager) { + // empty +} + +// ------------------------------------------------------------------------------------------------ +// Destructor. +AndroidJNIIOSystem::~AndroidJNIIOSystem() { + // nothing to do here +} + +// ------------------------------------------------------------------------------------------------ +// Tests for the existence of a file at the given path. +bool AndroidJNIIOSystem::Exists( const char* pFile) const { + AAsset* asset = AAssetManager_open(mApkAssetManager, pFile, AASSET_MODE_UNKNOWN); + FILE* file = ::fopen( (mApkWorkspacePath + getOsSeparator() + std::string(pFile)).c_str(), "rb"); + + if (!asset && !file) { + __android_log_print(ANDROID_LOG_ERROR, "Assimp", "Asset manager can not find: %s", pFile); + return false; + } + + __android_log_print(ANDROID_LOG_ERROR, "Assimp", "Asset exists"); + if (file) { + ::fclose( file); + } + + return true; +} + +// ------------------------------------------------------------------------------------------------ +// Inits Android extractor +void AndroidJNIIOSystem::AndroidActivityInit(ANativeActivity* activity) { + if (activity == nullptr) { + return; + } + mApkWorkspacePath = activity->internalDataPath; + mApkAssetManager = activity->assetManager; +} + +// ------------------------------------------------------------------------------------------------ +// Create the directory for the extracted resource +static int mkpath(std::string path, mode_t mode) { + if (mkdir(path.c_str(), mode) == -1) { + switch(errno) { + case ENOENT: + if (mkpath(path.substr(0, path.find_last_of('/')), mode) == -1) + return -1; + else + return mkdir(path.c_str(), mode); + case EEXIST: + return 0; + default: + return -1; + } + } + + return 0; +} + +// ------------------------------------------------------------------------------------------------ +// Extracts android asset +bool AndroidJNIIOSystem::AndroidExtractAsset(std::string name) { + std::string newPath = mApkWorkspacePath + getOsSeparator() + name; + + DefaultIOSystem io; + + // Do not extract if extracted already + if ( io.Exists(newPath.c_str()) ) { + __android_log_print(ANDROID_LOG_DEFAULT, "Assimp", "Asset already extracted"); + return true; + } + + // Open file + AAsset* asset = AAssetManager_open(mApkAssetManager, name.c_str(), + AASSET_MODE_UNKNOWN); + std::vector<char> assetContent; + + if (asset != NULL) { + // Find size + off_t assetSize = AAsset_getLength(asset); + + // Prepare input buffer + assetContent.resize(assetSize); + + // Store input buffer + AAsset_read(asset, &assetContent[0], assetSize); + + // Close + AAsset_close(asset); + + // Prepare directory for output buffer + std::string directoryNewPath = newPath; + directoryNewPath = dirname(&directoryNewPath[0]); + + if (mkpath(directoryNewPath, S_IRUSR | S_IWUSR | S_IXUSR) == -1) { + __android_log_print(ANDROID_LOG_ERROR, "assimp", "Can not create the directory for the output file"); + } + + // Prepare output buffer + std::ofstream assetExtracted(newPath.c_str(), std::ios::out | std::ios::binary); + if (!assetExtracted) { + __android_log_print(ANDROID_LOG_ERROR, "assimp", "Can not open output file"); + } + + // Write output buffer into a file + assetExtracted.write(&assetContent[0], assetContent.size()); + assetExtracted.close(); + + __android_log_print(ANDROID_LOG_DEFAULT, "Assimp", "Asset extracted"); + } else { + __android_log_print(ANDROID_LOG_ERROR, "assimp", "Asset not found: %s", name.c_str()); + return false; + } + + return true; +} + +// ------------------------------------------------------------------------------------------------ +// Open a new file with a given path. +IOStream* AndroidJNIIOSystem::Open( const char* strFile, const char* strMode) { + ai_assert(nullptr != strFile); + ai_assert(nullptr != strMode); + + std::string fullPath(mApkWorkspacePath + getOsSeparator() + std::string(strFile)); + if (Exists(strFile)) { + AndroidExtractAsset(std::string(strFile)); + } + + FILE* file = ::fopen( fullPath.c_str(), strMode); + if (nullptr == file) { + return nullptr; + } + + __android_log_print(ANDROID_LOG_ERROR, "assimp", "AndroidIOSystem: file %s opened", fullPath.c_str()); + return new DefaultIOStream(file, fullPath); +} + +#undef PATHLIMIT +#endif // __ANDROID__ and __ANDROID_API__ > 9 and defined(AI_CONFIG_ANDROID_JNI_ASSIMP_MANAGER_SUPPORT) diff --git a/libs/assimp/port/AndroidJNI/BundledAssetIOSystem.cpp b/libs/assimp/port/AndroidJNI/BundledAssetIOSystem.cpp new file mode 100644 index 0000000..39daf99 --- /dev/null +++ b/libs/assimp/port/AndroidJNI/BundledAssetIOSystem.cpp @@ -0,0 +1,80 @@ +/* +--------------------------------------------------------------------------- +Open Asset Import Library (assimp) +--------------------------------------------------------------------------- + +Copyright (c) 2006-2021, assimp 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 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 Android extension of DefaultIOSystem using the standard C file functions */ + +#include <assimp/ai_assert.h> +#include <android/asset_manager.h> +#include <assimp/DefaultIOStream.h> + +#if __ANDROID__ and __ANDROID_API__ > 9 and defined(AI_CONFIG_ANDROID_JNI_ASSIMP_MANAGER_SUPPORT) + +#include <assimp/port/AndroidJNI/BundledAssetIOSystem.h> + +using namespace Assimp; + +/** Tests for the existence of a file at the given path. */ +bool BundledAssetIOSystem::Exists(const char* pFile) const { + ai_assert(NULL != mApkAssetManager); + AAsset * asset = AAssetManager_open(mApkAssetManager, pFile, AASSET_MODE_UNKNOWN); + if (!asset) { return false; } + if (asset) AAsset_close(asset); + return true; +} + +// ------------------------------------------------------------------- +/** Open a new file with a given path. */ +Assimp::IOStream* BundledAssetIOSystem::Open(const char* pFile, const char* pMode) { + ai_assert(NULL != mApkAssetManager); + AAsset * asset = AAssetManager_open(mApkAssetManager, pFile, AASSET_MODE_UNKNOWN); + if (!asset) { return NULL; } + + return new AssetIOStream(asset); +} + +// ------------------------------------------------------------------- +/** Closes the given file and releases all resources associated with it. */ +void BundledAssetIOSystem::Close(Assimp::IOStream* pFile) { + delete reinterpret_cast<AssetIOStream *>(pFile); +} + +#endif // __ANDROID__ and __ANDROID_API__ > 9 and defined(AI_CONFIG_ANDROID_JNI_ASSIMP_MANAGER_SUPPORT) + diff --git a/libs/assimp/port/AndroidJNI/CMakeLists.txt b/libs/assimp/port/AndroidJNI/CMakeLists.txt new file mode 100644 index 0000000..8c821c7 --- /dev/null +++ b/libs/assimp/port/AndroidJNI/CMakeLists.txt @@ -0,0 +1,16 @@ +cmake_minimum_required(VERSION 3.10) + +include_directories(./) +include_directories(./../../) +add_library( # Defines the name of the library. + android_jniiosystem + + # Implements a static library. + STATIC + + # relative path to source file(s). + AndroidJNIIOSystem.cpp + BundledAssetIOSystem.cpp +) +TARGET_LINK_LIBRARIES(android_jniiosystem android log) +INSTALL(TARGETS android_jniiosystem EXPORT "${TARGETS_EXPORT_NAME}") diff --git a/libs/assimp/port/AndroidJNI/README.md b/libs/assimp/port/AndroidJNI/README.md new file mode 100644 index 0000000..003b1da --- /dev/null +++ b/libs/assimp/port/AndroidJNI/README.md @@ -0,0 +1,32 @@ +Build Asset Importer Lib for Android +==================================== +This module provides a facade for the io-stream-access to files behind the android-asset-management within +an Android-native application. +- It is built as a static library +- It requires Android NDK with android API > 9 support. + +### Building ### +To use this module please provide following cmake defines: +``` +-DASSIMP_ANDROID_JNIIOSYSTEM=ON +-DCMAKE_TOOLCHAIN_FILE=$SOME_PATH/android.toolchain.cmake +``` + +"SOME_PATH" is a path to your cmake android toolchain script. + + +The build script for this port is based on [android-cmake](https://github.com/taka-no-me/android-cmake). +See its documentation for more Android-specific cmake options (e.g. -DANDROID_ABI for the target ABI). +Check [Asset-Importer-Docs](https://assimp-docs.readthedocs.io/en/latest/) for more information. + +### Code ### +A small example how to wrap assimp for Android: +```cpp +#include <assimp/port/AndroidJNI/AndroidJNIIOSystem.h> + +Assimp::Importer* importer = new Assimp::Importer(); +Assimp::AndroidJNIIOSystem *ioSystem = new Assimp::AndroidJNIIOSystem(app->activity); +if ( nullptr != iosSystem ) { + importer->SetIOHandler(ioSystem); +} +``` |