696 lines
23 KiB
C++
696 lines
23 KiB
C++
/*
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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 Assimp.cpp
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* @brief Implementation of the Plain-C API
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*/
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#include <assimp/cimport.h>
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#include <assimp/LogStream.hpp>
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#include <assimp/DefaultLogger.hpp>
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#include <assimp/Importer.hpp>
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#include <assimp/importerdesc.h>
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#include <assimp/scene.h>
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#include <assimp/GenericProperty.h>
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#include <assimp/Exceptional.h>
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#include <assimp/BaseImporter.h>
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#include "CApi/CInterfaceIOWrapper.h"
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#include "Importer.h"
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#include "ScenePrivate.h"
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#include <list>
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// ------------------------------------------------------------------------------------------------
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#ifndef ASSIMP_BUILD_SINGLETHREADED
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# include <thread>
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# include <mutex>
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#endif
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// ------------------------------------------------------------------------------------------------
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using namespace Assimp;
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namespace Assimp {
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// underlying structure for aiPropertyStore
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typedef BatchLoader::PropertyMap PropertyMap;
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/** Stores the LogStream objects for all active C log streams */
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struct mpred {
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bool operator () (const aiLogStream& s0, const aiLogStream& s1) const {
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return s0.callback<s1.callback&&s0.user<s1.user;
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}
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};
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typedef std::map<aiLogStream, Assimp::LogStream*, mpred> LogStreamMap;
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/** Stores the LogStream objects allocated by #aiGetPredefinedLogStream */
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typedef std::list<Assimp::LogStream*> PredefLogStreamMap;
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/** Local storage of all active log streams */
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static LogStreamMap gActiveLogStreams;
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/** Local storage of LogStreams allocated by #aiGetPredefinedLogStream */
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static PredefLogStreamMap gPredefinedStreams;
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/** Error message of the last failed import process */
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static std::string gLastErrorString;
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/** Verbose logging active or not? */
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static aiBool gVerboseLogging = false;
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/** will return all registered importers. */
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void GetImporterInstanceList(std::vector< BaseImporter* >& out);
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/** will delete all registered importers. */
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void DeleteImporterInstanceList(std::vector< BaseImporter* >& out);
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} // namespace assimp
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#ifndef ASSIMP_BUILD_SINGLETHREADED
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/** Global mutex to manage the access to the log-stream map */
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static std::mutex gLogStreamMutex;
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#endif
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// ------------------------------------------------------------------------------------------------
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// Custom LogStream implementation for the C-API
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class LogToCallbackRedirector : public LogStream {
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public:
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explicit LogToCallbackRedirector(const aiLogStream& s)
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: stream (s) {
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ai_assert(NULL != s.callback);
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}
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~LogToCallbackRedirector() {
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#ifndef ASSIMP_BUILD_SINGLETHREADED
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std::lock_guard<std::mutex> lock(gLogStreamMutex);
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#endif
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// (HACK) Check whether the 'stream.user' pointer points to a
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// custom LogStream allocated by #aiGetPredefinedLogStream.
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// In this case, we need to delete it, too. Of course, this
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// might cause strange problems, but the chance is quite low.
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PredefLogStreamMap::iterator it = std::find(gPredefinedStreams.begin(),
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gPredefinedStreams.end(), (Assimp::LogStream*)stream.user);
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if (it != gPredefinedStreams.end()) {
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delete *it;
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gPredefinedStreams.erase(it);
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}
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}
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/** @copydoc LogStream::write */
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void write(const char* message) {
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stream.callback(message,stream.user);
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}
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private:
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aiLogStream stream;
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};
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// ------------------------------------------------------------------------------------------------
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void ReportSceneNotFoundError() {
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ASSIMP_LOG_ERROR("Unable to find the Assimp::Importer for this aiScene. "
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"The C-API does not accept scenes produced by the C++ API and vice versa");
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ai_assert(false);
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}
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// ------------------------------------------------------------------------------------------------
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// Reads the given file and returns its content.
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const aiScene* aiImportFile( const char* pFile, unsigned int pFlags) {
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return aiImportFileEx(pFile,pFlags,NULL);
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}
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// ------------------------------------------------------------------------------------------------
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const aiScene* aiImportFileEx( const char* pFile, unsigned int pFlags, aiFileIO* pFS) {
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return aiImportFileExWithProperties(pFile, pFlags, pFS, NULL);
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}
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// ------------------------------------------------------------------------------------------------
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const aiScene* aiImportFileExWithProperties( const char* pFile, unsigned int pFlags,
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aiFileIO* pFS, const aiPropertyStore* props) {
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ai_assert(NULL != pFile);
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const aiScene* scene = NULL;
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ASSIMP_BEGIN_EXCEPTION_REGION();
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// create an Importer for this file
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Assimp::Importer* imp = new Assimp::Importer();
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// copy properties
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if(props) {
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const PropertyMap* pp = reinterpret_cast<const PropertyMap*>(props);
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ImporterPimpl* pimpl = imp->Pimpl();
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pimpl->mIntProperties = pp->ints;
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pimpl->mFloatProperties = pp->floats;
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pimpl->mStringProperties = pp->strings;
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pimpl->mMatrixProperties = pp->matrices;
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}
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// setup a custom IO system if necessary
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if (pFS) {
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imp->SetIOHandler( new CIOSystemWrapper (pFS) );
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}
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// and have it read the file
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scene = imp->ReadFile( pFile, pFlags);
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// if succeeded, store the importer in the scene and keep it alive
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if( scene) {
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ScenePrivateData* priv = const_cast<ScenePrivateData*>( ScenePriv(scene) );
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priv->mOrigImporter = imp;
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} else {
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// if failed, extract error code and destroy the import
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gLastErrorString = imp->GetErrorString();
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delete imp;
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}
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// return imported data. If the import failed the pointer is NULL anyways
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ASSIMP_END_EXCEPTION_REGION(const aiScene*);
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return scene;
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}
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// ------------------------------------------------------------------------------------------------
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const aiScene* aiImportFileFromMemory(
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const char* pBuffer,
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unsigned int pLength,
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unsigned int pFlags,
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const char* pHint)
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{
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return aiImportFileFromMemoryWithProperties(pBuffer, pLength, pFlags, pHint, NULL);
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}
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// ------------------------------------------------------------------------------------------------
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const aiScene* aiImportFileFromMemoryWithProperties(
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const char* pBuffer,
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unsigned int pLength,
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unsigned int pFlags,
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const char* pHint,
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const aiPropertyStore* props)
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{
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ai_assert( NULL != pBuffer );
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ai_assert( 0 != pLength );
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const aiScene* scene = NULL;
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ASSIMP_BEGIN_EXCEPTION_REGION();
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// create an Importer for this file
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Assimp::Importer* imp = new Assimp::Importer();
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// copy properties
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if(props) {
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const PropertyMap* pp = reinterpret_cast<const PropertyMap*>(props);
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ImporterPimpl* pimpl = imp->Pimpl();
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pimpl->mIntProperties = pp->ints;
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pimpl->mFloatProperties = pp->floats;
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pimpl->mStringProperties = pp->strings;
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pimpl->mMatrixProperties = pp->matrices;
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}
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// and have it read the file from the memory buffer
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scene = imp->ReadFileFromMemory( pBuffer, pLength, pFlags,pHint);
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// if succeeded, store the importer in the scene and keep it alive
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if( scene) {
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ScenePrivateData* priv = const_cast<ScenePrivateData*>( ScenePriv(scene) );
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priv->mOrigImporter = imp;
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}
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else {
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// if failed, extract error code and destroy the import
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gLastErrorString = imp->GetErrorString();
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delete imp;
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}
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// return imported data. If the import failed the pointer is NULL anyways
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ASSIMP_END_EXCEPTION_REGION(const aiScene*);
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return scene;
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}
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// ------------------------------------------------------------------------------------------------
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// Releases all resources associated with the given import process.
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void aiReleaseImport( const aiScene* pScene)
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{
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if (!pScene) {
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return;
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}
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ASSIMP_BEGIN_EXCEPTION_REGION();
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// find the importer associated with this data
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const ScenePrivateData* priv = ScenePriv(pScene);
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if( !priv || !priv->mOrigImporter) {
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delete pScene;
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}
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else {
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// deleting the Importer also deletes the scene
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// Note: the reason that this is not written as 'delete priv->mOrigImporter'
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// is a suspected bug in gcc 4.4+ (http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52339)
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Importer* importer = priv->mOrigImporter;
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delete importer;
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}
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ASSIMP_END_EXCEPTION_REGION(void);
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}
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// ------------------------------------------------------------------------------------------------
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ASSIMP_API const aiScene* aiApplyPostProcessing(const aiScene* pScene,
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unsigned int pFlags)
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{
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const aiScene* sc = NULL;
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ASSIMP_BEGIN_EXCEPTION_REGION();
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// find the importer associated with this data
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const ScenePrivateData* priv = ScenePriv(pScene);
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if( !priv || !priv->mOrigImporter) {
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ReportSceneNotFoundError();
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return NULL;
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}
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sc = priv->mOrigImporter->ApplyPostProcessing(pFlags);
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if (!sc) {
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aiReleaseImport(pScene);
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return NULL;
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}
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ASSIMP_END_EXCEPTION_REGION(const aiScene*);
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return sc;
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}
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// ------------------------------------------------------------------------------------------------
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ASSIMP_API const aiScene *aiApplyCustomizedPostProcessing( const aiScene *scene,
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BaseProcess* process,
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bool requestValidation ) {
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const aiScene* sc( NULL );
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ASSIMP_BEGIN_EXCEPTION_REGION();
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// find the importer associated with this data
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const ScenePrivateData* priv = ScenePriv( scene );
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if ( NULL == priv || NULL == priv->mOrigImporter ) {
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ReportSceneNotFoundError();
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return NULL;
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}
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sc = priv->mOrigImporter->ApplyCustomizedPostProcessing( process, requestValidation );
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if ( !sc ) {
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aiReleaseImport( scene );
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return NULL;
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}
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ASSIMP_END_EXCEPTION_REGION( const aiScene* );
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return sc;
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}
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// ------------------------------------------------------------------------------------------------
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void CallbackToLogRedirector (const char* msg, char* dt)
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{
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ai_assert( NULL != msg );
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ai_assert( NULL != dt );
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LogStream* s = (LogStream*)dt;
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s->write(msg);
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}
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// ------------------------------------------------------------------------------------------------
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ASSIMP_API aiLogStream aiGetPredefinedLogStream(aiDefaultLogStream pStream,const char* file)
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{
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aiLogStream sout;
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ASSIMP_BEGIN_EXCEPTION_REGION();
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LogStream* stream = LogStream::createDefaultStream(pStream,file);
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if (!stream) {
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sout.callback = NULL;
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sout.user = NULL;
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}
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else {
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sout.callback = &CallbackToLogRedirector;
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sout.user = (char*)stream;
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}
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gPredefinedStreams.push_back(stream);
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ASSIMP_END_EXCEPTION_REGION(aiLogStream);
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return sout;
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}
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// ------------------------------------------------------------------------------------------------
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ASSIMP_API void aiAttachLogStream( const aiLogStream* stream )
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{
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ASSIMP_BEGIN_EXCEPTION_REGION();
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#ifndef ASSIMP_BUILD_SINGLETHREADED
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std::lock_guard<std::mutex> lock(gLogStreamMutex);
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#endif
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LogStream* lg = new LogToCallbackRedirector(*stream);
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gActiveLogStreams[*stream] = lg;
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if (DefaultLogger::isNullLogger()) {
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DefaultLogger::create(NULL,(gVerboseLogging == AI_TRUE ? Logger::VERBOSE : Logger::NORMAL));
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}
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DefaultLogger::get()->attachStream(lg);
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ASSIMP_END_EXCEPTION_REGION(void);
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}
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// ------------------------------------------------------------------------------------------------
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ASSIMP_API aiReturn aiDetachLogStream( const aiLogStream* stream)
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{
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ASSIMP_BEGIN_EXCEPTION_REGION();
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#ifndef ASSIMP_BUILD_SINGLETHREADED
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std::lock_guard<std::mutex> lock(gLogStreamMutex);
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#endif
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// find the log-stream associated with this data
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LogStreamMap::iterator it = gActiveLogStreams.find( *stream);
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// it should be there... else the user is playing fools with us
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if( it == gActiveLogStreams.end()) {
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return AI_FAILURE;
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}
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DefaultLogger::get()->detatchStream( it->second );
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delete it->second;
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gActiveLogStreams.erase( it);
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if (gActiveLogStreams.empty()) {
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DefaultLogger::kill();
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}
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ASSIMP_END_EXCEPTION_REGION(aiReturn);
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return AI_SUCCESS;
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}
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// ------------------------------------------------------------------------------------------------
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ASSIMP_API void aiDetachAllLogStreams(void)
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{
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ASSIMP_BEGIN_EXCEPTION_REGION();
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#ifndef ASSIMP_BUILD_SINGLETHREADED
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std::lock_guard<std::mutex> lock(gLogStreamMutex);
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#endif
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Logger *logger( DefaultLogger::get() );
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if ( NULL == logger ) {
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return;
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}
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for (LogStreamMap::iterator it = gActiveLogStreams.begin(); it != gActiveLogStreams.end(); ++it) {
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logger->detatchStream( it->second );
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delete it->second;
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}
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gActiveLogStreams.clear();
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DefaultLogger::kill();
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ASSIMP_END_EXCEPTION_REGION(void);
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}
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// ------------------------------------------------------------------------------------------------
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ASSIMP_API void aiEnableVerboseLogging(aiBool d)
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{
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if (!DefaultLogger::isNullLogger()) {
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DefaultLogger::get()->setLogSeverity((d == AI_TRUE ? Logger::VERBOSE : Logger::NORMAL));
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}
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gVerboseLogging = d;
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}
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// ------------------------------------------------------------------------------------------------
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// Returns the error text of the last failed import process.
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const char* aiGetErrorString()
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{
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return gLastErrorString.c_str();
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}
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// -----------------------------------------------------------------------------------------------
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// Return the description of a importer given its index
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const aiImporterDesc* aiGetImportFormatDescription( size_t pIndex)
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{
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return Importer().GetImporterInfo(pIndex);
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}
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// -----------------------------------------------------------------------------------------------
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// Return the number of importers
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size_t aiGetImportFormatCount(void)
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{
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return Importer().GetImporterCount();
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}
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// ------------------------------------------------------------------------------------------------
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// Returns the error text of the last failed import process.
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aiBool aiIsExtensionSupported(const char* szExtension)
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{
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ai_assert(NULL != szExtension);
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aiBool candoit=AI_FALSE;
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ASSIMP_BEGIN_EXCEPTION_REGION();
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// FIXME: no need to create a temporary Importer instance just for that ..
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Assimp::Importer tmp;
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candoit = tmp.IsExtensionSupported(std::string(szExtension)) ? AI_TRUE : AI_FALSE;
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ASSIMP_END_EXCEPTION_REGION(aiBool);
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return candoit;
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}
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// ------------------------------------------------------------------------------------------------
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// Get a list of all file extensions supported by ASSIMP
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void aiGetExtensionList(aiString* szOut)
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{
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ai_assert(NULL != szOut);
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ASSIMP_BEGIN_EXCEPTION_REGION();
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// FIXME: no need to create a temporary Importer instance just for that ..
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Assimp::Importer tmp;
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tmp.GetExtensionList(*szOut);
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ASSIMP_END_EXCEPTION_REGION(void);
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}
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// ------------------------------------------------------------------------------------------------
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// Get the memory requirements for a particular import.
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void aiGetMemoryRequirements(const C_STRUCT aiScene* pIn,
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C_STRUCT aiMemoryInfo* in)
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{
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ASSIMP_BEGIN_EXCEPTION_REGION();
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// find the importer associated with this data
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const ScenePrivateData* priv = ScenePriv(pIn);
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if( !priv || !priv->mOrigImporter) {
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ReportSceneNotFoundError();
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return;
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}
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return priv->mOrigImporter->GetMemoryRequirements(*in);
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ASSIMP_END_EXCEPTION_REGION(void);
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}
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// ------------------------------------------------------------------------------------------------
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ASSIMP_API aiPropertyStore* aiCreatePropertyStore(void)
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{
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return reinterpret_cast<aiPropertyStore*>( new PropertyMap() );
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}
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// ------------------------------------------------------------------------------------------------
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ASSIMP_API void aiReleasePropertyStore(aiPropertyStore* p)
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{
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delete reinterpret_cast<PropertyMap*>(p);
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}
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// ------------------------------------------------------------------------------------------------
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// Importer::SetPropertyInteger
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ASSIMP_API void aiSetImportPropertyInteger(aiPropertyStore* p, const char* szName, int value)
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{
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ASSIMP_BEGIN_EXCEPTION_REGION();
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PropertyMap* pp = reinterpret_cast<PropertyMap*>(p);
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SetGenericProperty<int>(pp->ints,szName,value);
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ASSIMP_END_EXCEPTION_REGION(void);
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}
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// ------------------------------------------------------------------------------------------------
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// Importer::SetPropertyFloat
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ASSIMP_API void aiSetImportPropertyFloat(aiPropertyStore* p, const char* szName, ai_real value)
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{
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ASSIMP_BEGIN_EXCEPTION_REGION();
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PropertyMap* pp = reinterpret_cast<PropertyMap*>(p);
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SetGenericProperty<ai_real>(pp->floats,szName,value);
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ASSIMP_END_EXCEPTION_REGION(void);
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}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
// Importer::SetPropertyString
|
|
ASSIMP_API void aiSetImportPropertyString(aiPropertyStore* p, const char* szName,
|
|
const C_STRUCT aiString* st)
|
|
{
|
|
if (!st) {
|
|
return;
|
|
}
|
|
ASSIMP_BEGIN_EXCEPTION_REGION();
|
|
PropertyMap* pp = reinterpret_cast<PropertyMap*>(p);
|
|
SetGenericProperty<std::string>(pp->strings,szName,std::string(st->C_Str()));
|
|
ASSIMP_END_EXCEPTION_REGION(void);
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
// Importer::SetPropertyMatrix
|
|
ASSIMP_API void aiSetImportPropertyMatrix(aiPropertyStore* p, const char* szName,
|
|
const C_STRUCT aiMatrix4x4* mat)
|
|
{
|
|
if (!mat) {
|
|
return;
|
|
}
|
|
ASSIMP_BEGIN_EXCEPTION_REGION();
|
|
PropertyMap* pp = reinterpret_cast<PropertyMap*>(p);
|
|
SetGenericProperty<aiMatrix4x4>(pp->matrices,szName,*mat);
|
|
ASSIMP_END_EXCEPTION_REGION(void);
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
// Rotation matrix to quaternion
|
|
ASSIMP_API void aiCreateQuaternionFromMatrix(aiQuaternion* quat,const aiMatrix3x3* mat)
|
|
{
|
|
ai_assert( NULL != quat );
|
|
ai_assert( NULL != mat );
|
|
*quat = aiQuaternion(*mat);
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
// Matrix decomposition
|
|
ASSIMP_API void aiDecomposeMatrix(const aiMatrix4x4* mat,aiVector3D* scaling,
|
|
aiQuaternion* rotation,
|
|
aiVector3D* position)
|
|
{
|
|
ai_assert( NULL != rotation );
|
|
ai_assert( NULL != position );
|
|
ai_assert( NULL != scaling );
|
|
ai_assert( NULL != mat );
|
|
mat->Decompose(*scaling,*rotation,*position);
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
// Matrix transpose
|
|
ASSIMP_API void aiTransposeMatrix3(aiMatrix3x3* mat)
|
|
{
|
|
ai_assert(NULL != mat);
|
|
mat->Transpose();
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
ASSIMP_API void aiTransposeMatrix4(aiMatrix4x4* mat)
|
|
{
|
|
ai_assert(NULL != mat);
|
|
mat->Transpose();
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
// Vector transformation
|
|
ASSIMP_API void aiTransformVecByMatrix3(aiVector3D* vec,
|
|
const aiMatrix3x3* mat)
|
|
{
|
|
ai_assert( NULL != mat );
|
|
ai_assert( NULL != vec);
|
|
*vec *= (*mat);
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
ASSIMP_API void aiTransformVecByMatrix4(aiVector3D* vec,
|
|
const aiMatrix4x4* mat)
|
|
{
|
|
ai_assert( NULL != mat );
|
|
ai_assert( NULL != vec );
|
|
|
|
*vec *= (*mat);
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
// Matrix multiplication
|
|
ASSIMP_API void aiMultiplyMatrix4(
|
|
aiMatrix4x4* dst,
|
|
const aiMatrix4x4* src)
|
|
{
|
|
ai_assert( NULL != dst );
|
|
ai_assert( NULL != src );
|
|
*dst = (*dst) * (*src);
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
ASSIMP_API void aiMultiplyMatrix3(
|
|
aiMatrix3x3* dst,
|
|
const aiMatrix3x3* src)
|
|
{
|
|
ai_assert( NULL != dst );
|
|
ai_assert( NULL != src );
|
|
*dst = (*dst) * (*src);
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
// Matrix identity
|
|
ASSIMP_API void aiIdentityMatrix3(
|
|
aiMatrix3x3* mat)
|
|
{
|
|
ai_assert(NULL != mat);
|
|
*mat = aiMatrix3x3();
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
ASSIMP_API void aiIdentityMatrix4(
|
|
aiMatrix4x4* mat)
|
|
{
|
|
ai_assert(NULL != mat);
|
|
*mat = aiMatrix4x4();
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
ASSIMP_API C_STRUCT const aiImporterDesc* aiGetImporterDesc( const char *extension ) {
|
|
if( NULL == extension ) {
|
|
return NULL;
|
|
}
|
|
const aiImporterDesc *desc( NULL );
|
|
std::vector< BaseImporter* > out;
|
|
GetImporterInstanceList( out );
|
|
for( size_t i = 0; i < out.size(); ++i ) {
|
|
if( 0 == strncmp( out[ i ]->GetInfo()->mFileExtensions, extension, strlen( extension ) ) ) {
|
|
desc = out[ i ]->GetInfo();
|
|
break;
|
|
}
|
|
}
|
|
|
|
DeleteImporterInstanceList(out);
|
|
|
|
return desc;
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|