assimp/code/Assimp.cpp at master · Tidal-Loop/assimp · GitHub

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---------------------------------------------------------------------------

Open Asset Import Library (assimp)

---------------------------------------------------------------------------

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

following disclaimer.

* Redistributions in binary form must reproduce the above

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 Assimp.cpp

* @brief Implementation of the Plain-C API

#include <assimp/cimport.h>

#include <assimp/LogStream.hpp>

#include <assimp/DefaultLogger.hpp>

#include <assimp/Importer.hpp>

#include <assimp/importerdesc.h>

#include <assimp/scene.h>

#include "GenericProperty.h"

#include "CInterfaceIOWrapper.h"

#include "Importer.h"

#include "Exceptional.h"

#include "ScenePrivate.h"

#include "BaseImporter.h"

#include <list>

// ------------------------------------------------------------------------------------------------

#ifndef ASSIMP_BUILD_SINGLETHREADED

# include <boost/thread/thread.hpp>

# include <boost/thread/mutex.hpp>

#endif

// ------------------------------------------------------------------------------------------------

using namespace Assimp;

namespace Assimp

{

// underlying structure for aiPropertyStore

typedef BatchLoader::PropertyMap PropertyMap;

/** Stores the LogStream objects for all active C log streams */

struct mpred {

bool operator () (const aiLogStream& s0, const aiLogStream& s1) const {

return s0.callback<s1.callback&&s0.user<s1.user;

}

};

typedef std::map<aiLogStream, Assimp::LogStream*, mpred> LogStreamMap;

/** Stores the LogStream objects allocated by #aiGetPredefinedLogStream */

typedef std::list<Assimp::LogStream*> PredefLogStreamMap;

/** Local storage of all active log streams */

static LogStreamMap gActiveLogStreams;

/** Local storage of LogStreams allocated by #aiGetPredefinedLogStream */

static PredefLogStreamMap gPredefinedStreams;

/** Error message of the last failed import process */

static std::string gLastErrorString;

/** Verbose logging active or not? */

static aiBool gVerboseLogging = false;

/** will return all registered importers. */

void GetImporterInstanceList(std::vector< BaseImporter* >& out);

/** will delete all registered importers. */

void DeleteImporterInstanceList(std::vector< BaseImporter* >& out);

} // namespace assimp

#ifndef ASSIMP_BUILD_SINGLETHREADED

/** Global mutex to manage the access to the log-stream map */

static boost::mutex gLogStreamMutex;

#endif

// ------------------------------------------------------------------------------------------------

// Custom LogStream implementation for the C-API

class LogToCallbackRedirector : public LogStream

{

public:

explicit LogToCallbackRedirector(const aiLogStream& s)

: stream (s) {

ai_assert(NULL != s.callback);

}

~LogToCallbackRedirector() {

#ifndef ASSIMP_BUILD_SINGLETHREADED

boost::mutex::scoped_lock lock(gLogStreamMutex);

#endif

// (HACK) Check whether the 'stream.user' pointer points to a

// custom LogStream allocated by #aiGetPredefinedLogStream.

// In this case, we need to delete it, too. Of course, this

// might cause strange problems, but the chance is quite low.

PredefLogStreamMap::iterator it = std::find(gPredefinedStreams.begin(),

gPredefinedStreams.end(), (Assimp::LogStream*)stream.user);

if (it != gPredefinedStreams.end()) {

delete *it;

gPredefinedStreams.erase(it);

}

/** @copydoc LogStream::write */

void write(const char* message) {

stream.callback(message,stream.user);

}

private:

aiLogStream stream;

};

// ------------------------------------------------------------------------------------------------

void ReportSceneNotFoundError()

{

DefaultLogger::get()->error("Unable to find the Assimp::Importer for this aiScene. "

"The C-API does not accept scenes produced by the C++ API and vice versa");

assert(false);

}

// ------------------------------------------------------------------------------------------------

// Reads the given file and returns its content.

const aiScene* aiImportFile( const char* pFile, unsigned int pFlags)

{

return aiImportFileEx(pFile,pFlags,NULL);

}

// ------------------------------------------------------------------------------------------------

const aiScene* aiImportFileEx( const char* pFile, unsigned int pFlags, aiFileIO* pFS)

{

return aiImportFileExWithProperties(pFile, pFlags, pFS, NULL);

}

// ------------------------------------------------------------------------------------------------

const aiScene* aiImportFileExWithProperties( const char* pFile, unsigned int pFlags,

aiFileIO* pFS,

const aiPropertyStore* props)

{

ai_assert(NULL != pFile);

const aiScene* scene = NULL;

ASSIMP_BEGIN_EXCEPTION_REGION();

// create an Importer for this file

Assimp::Importer* imp = new Assimp::Importer();

// copy properties

if(props) {

const PropertyMap* pp = reinterpret_cast<const PropertyMap*>(props);

ImporterPimpl* pimpl = imp->Pimpl();

pimpl->mIntProperties = pp->ints;

pimpl->mFloatProperties = pp->floats;

pimpl->mStringProperties = pp->strings;

pimpl->mMatrixProperties = pp->matrices;

}

// setup a custom IO system if necessary

if (pFS) {

imp->SetIOHandler( new CIOSystemWrapper (pFS) );

}

// and have it read the file

scene = imp->ReadFile( pFile, pFlags);

// if succeeded, store the importer in the scene and keep it alive

if( scene) {

ScenePrivateData* priv = const_cast<ScenePrivateData*>( ScenePriv(scene) );

priv->mOrigImporter = imp;

}

else {

// if failed, extract error code and destroy the import

gLastErrorString = imp->GetErrorString();

delete imp;

}

// return imported data. If the import failed the pointer is NULL anyways

ASSIMP_END_EXCEPTION_REGION(const aiScene*);

return scene;

}

// ------------------------------------------------------------------------------------------------

const aiScene* aiImportFileFromMemory(

const char* pBuffer,

unsigned int pLength,

unsigned int pFlags,

const char* pHint)

{

return aiImportFileFromMemoryWithProperties(pBuffer, pLength, pFlags, pHint, NULL);

}

// ------------------------------------------------------------------------------------------------

const aiScene* aiImportFileFromMemoryWithProperties(

const char* pBuffer,

unsigned int pLength,

unsigned int pFlags,

const char* pHint,

const aiPropertyStore* props)

{

ai_assert( NULL != pBuffer );

ai_assert( 0 != pLength );

const aiScene* scene = NULL;

ASSIMP_BEGIN_EXCEPTION_REGION();

// create an Importer for this file

Assimp::Importer* imp = new Assimp::Importer();

// copy properties

if(props) {

const PropertyMap* pp = reinterpret_cast<const PropertyMap*>(props);

ImporterPimpl* pimpl = imp->Pimpl();

pimpl->mIntProperties = pp->ints;

pimpl->mFloatProperties = pp->floats;

pimpl->mStringProperties = pp->strings;

pimpl->mMatrixProperties = pp->matrices;

}

// and have it read the file from the memory buffer

scene = imp->ReadFileFromMemory( pBuffer, pLength, pFlags,pHint);

// if succeeded, store the importer in the scene and keep it alive

if( scene) {

ScenePrivateData* priv = const_cast<ScenePrivateData*>( ScenePriv(scene) );

priv->mOrigImporter = imp;

}

else {

// if failed, extract error code and destroy the import

gLastErrorString = imp->GetErrorString();

delete imp;

}

// return imported data. If the import failed the pointer is NULL anyways

ASSIMP_END_EXCEPTION_REGION(const aiScene*);

return scene;

}

// ------------------------------------------------------------------------------------------------

// Releases all resources associated with the given import process.

void aiReleaseImport( const aiScene* pScene)

{

if (!pScene) {

return;

}

ASSIMP_BEGIN_EXCEPTION_REGION();

// find the importer associated with this data

const ScenePrivateData* priv = ScenePriv(pScene);

if( !priv || !priv->mOrigImporter) {

delete pScene;

}

else {

// deleting the Importer also deletes the scene

// Note: the reason that this is not written as 'delete priv->mOrigImporter'

// is a suspected bug in gcc 4.4+ (http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52339)

Importer* importer = priv->mOrigImporter;

delete importer;

}

ASSIMP_END_EXCEPTION_REGION(void);

}

// ------------------------------------------------------------------------------------------------

ASSIMP_API const aiScene* aiApplyPostProcessing(const aiScene* pScene,

unsigned int pFlags)

{

const aiScene* sc = NULL;

ASSIMP_BEGIN_EXCEPTION_REGION();

// find the importer associated with this data

const ScenePrivateData* priv = ScenePriv(pScene);

if( !priv || !priv->mOrigImporter) {

ReportSceneNotFoundError();

return NULL;

}

sc = priv->mOrigImporter->ApplyPostProcessing(pFlags);

if (!sc) {

aiReleaseImport(pScene);

return NULL;

}

ASSIMP_END_EXCEPTION_REGION(const aiScene*);

return sc;

}

// ------------------------------------------------------------------------------------------------

ASSIMP_API const aiScene *aiApplyCustomizedPostProcessing( const aiScene *scene,

BaseProcess* process,

bool requestValidation ) {

const aiScene* sc( NULL );

ASSIMP_BEGIN_EXCEPTION_REGION();

// find the importer associated with this data

const ScenePrivateData* priv = ScenePriv( scene );

if ( NULL == priv || NULL == priv->mOrigImporter ) {

ReportSceneNotFoundError();

return NULL;

}

sc = priv->mOrigImporter->ApplyCustomizedPostProcessing( process, requestValidation );

if ( !sc ) {

aiReleaseImport( scene );

return NULL;

}

ASSIMP_END_EXCEPTION_REGION( const aiScene* );

return sc;

}

// ------------------------------------------------------------------------------------------------

void CallbackToLogRedirector (const char* msg, char* dt)

{

ai_assert( NULL != msg );

ai_assert( NULL != dt );

LogStream* s = (LogStream*)dt;

s->write(msg);

}

// ------------------------------------------------------------------------------------------------

ASSIMP_API aiLogStream aiGetPredefinedLogStream(aiDefaultLogStream pStream,const char* file)

{

aiLogStream sout;

ASSIMP_BEGIN_EXCEPTION_REGION();

LogStream* stream = LogStream::createDefaultStream(pStream,file);

if (!stream) {

sout.callback = NULL;

sout.user = NULL;

}

else {

sout.callback = &CallbackToLogRedirector;

sout.user = (char*)stream;

}

gPredefinedStreams.push_back(stream);

ASSIMP_END_EXCEPTION_REGION(aiLogStream);

return sout;

}

// ------------------------------------------------------------------------------------------------

ASSIMP_API void aiAttachLogStream( const aiLogStream* stream )

{

ASSIMP_BEGIN_EXCEPTION_REGION();

#ifndef ASSIMP_BUILD_SINGLETHREADED

boost::mutex::scoped_lock lock(gLogStreamMutex);

#endif

LogStream* lg = new LogToCallbackRedirector(*stream);

gActiveLogStreams[*stream] = lg;

if (DefaultLogger::isNullLogger()) {

DefaultLogger::create(NULL,(gVerboseLogging == AI_TRUE ? Logger::VERBOSE : Logger::NORMAL));

}

DefaultLogger::get()->attachStream(lg);

ASSIMP_END_EXCEPTION_REGION(void);

}

// ------------------------------------------------------------------------------------------------

ASSIMP_API aiReturn aiDetachLogStream( const aiLogStream* stream)

{

ASSIMP_BEGIN_EXCEPTION_REGION();

#ifndef ASSIMP_BUILD_SINGLETHREADED

boost::mutex::scoped_lock lock(gLogStreamMutex);

#endif

// find the log-stream associated with this data

LogStreamMap::iterator it = gActiveLogStreams.find( *stream);

// it should be there... else the user is playing fools with us

if( it == gActiveLogStreams.end()) {

return AI_FAILURE;

}

DefaultLogger::get()->detatchStream( it->second );

delete it->second;

gActiveLogStreams.erase( it);

if (gActiveLogStreams.empty()) {

DefaultLogger::kill();

}

ASSIMP_END_EXCEPTION_REGION(aiReturn);

return AI_SUCCESS;

}

// ------------------------------------------------------------------------------------------------

ASSIMP_API void aiDetachAllLogStreams(void)

{

ASSIMP_BEGIN_EXCEPTION_REGION();

#ifndef ASSIMP_BUILD_SINGLETHREADED

boost::mutex::scoped_lock lock(gLogStreamMutex);

#endif

Logger *logger( DefaultLogger::get() );

if ( NULL == logger ) {

return;

}

for (LogStreamMap::iterator it = gActiveLogStreams.begin(); it != gActiveLogStreams.end(); ++it) {

logger->detatchStream( it->second );

delete it->second;

}

gActiveLogStreams.clear();

DefaultLogger::kill();

ASSIMP_END_EXCEPTION_REGION(void);

}

// ------------------------------------------------------------------------------------------------

ASSIMP_API void aiEnableVerboseLogging(aiBool d)

{

if (!DefaultLogger::isNullLogger()) {

DefaultLogger::get()->setLogSeverity((d == AI_TRUE ? Logger::VERBOSE : Logger::NORMAL));

}

gVerboseLogging = d;

}

// ------------------------------------------------------------------------------------------------

// Returns the error text of the last failed import process.

const char* aiGetErrorString()

{

return gLastErrorString.c_str();

}

// -----------------------------------------------------------------------------------------------

// Return the description of a importer given its index

const aiImporterDesc* aiGetImportFormatDescription( size_t pIndex)

{

return Importer().GetImporterInfo(pIndex);

}

// -----------------------------------------------------------------------------------------------

// Return the number of importers

size_t aiGetImportFormatCount(void)

{

return Importer().GetImporterCount();

}

// ------------------------------------------------------------------------------------------------

// Returns the error text of the last failed import process.

aiBool aiIsExtensionSupported(const char* szExtension)

{

ai_assert(NULL != szExtension);

aiBool candoit=AI_FALSE;

ASSIMP_BEGIN_EXCEPTION_REGION();

// FIXME: no need to create a temporary Importer instance just for that ..

Assimp::Importer tmp;

candoit = tmp.IsExtensionSupported(std::string(szExtension)) ? AI_TRUE : AI_FALSE;

ASSIMP_END_EXCEPTION_REGION(aiBool);

return candoit;

}

// ------------------------------------------------------------------------------------------------

// Get a list of all file extensions supported by ASSIMP

void aiGetExtensionList(aiString* szOut)

{

ai_assert(NULL != szOut);

ASSIMP_BEGIN_EXCEPTION_REGION();

// FIXME: no need to create a temporary Importer instance just for that ..

Assimp::Importer tmp;

tmp.GetExtensionList(*szOut);

ASSIMP_END_EXCEPTION_REGION(void);

}

// ------------------------------------------------------------------------------------------------

// Get the memory requirements for a particular import.

void aiGetMemoryRequirements(const C_STRUCT aiScene* pIn,

C_STRUCT aiMemoryInfo* in)

{

ASSIMP_BEGIN_EXCEPTION_REGION();

// find the importer associated with this data

const ScenePrivateData* priv = ScenePriv(pIn);

if( !priv || !priv->mOrigImporter) {

ReportSceneNotFoundError();

return;

}

return priv->mOrigImporter->GetMemoryRequirements(*in);

ASSIMP_END_EXCEPTION_REGION(void);

}

// ------------------------------------------------------------------------------------------------

ASSIMP_API aiPropertyStore* aiCreatePropertyStore(void)

{

return reinterpret_cast<aiPropertyStore*>( new PropertyMap() );

}

// ------------------------------------------------------------------------------------------------

ASSIMP_API void aiReleasePropertyStore(aiPropertyStore* p)

{

delete reinterpret_cast<PropertyMap*>(p);

}

// ------------------------------------------------------------------------------------------------

// Importer::SetPropertyInteger

ASSIMP_API void aiSetImportPropertyInteger(aiPropertyStore* p, const char* szName, int value)

{

ASSIMP_BEGIN_EXCEPTION_REGION();

PropertyMap* pp = reinterpret_cast<PropertyMap*>(p);

SetGenericProperty<int>(pp->ints,szName,value);

ASSIMP_END_EXCEPTION_REGION(void);

}

// ------------------------------------------------------------------------------------------------

// Importer::SetPropertyFloat

ASSIMP_API void aiSetImportPropertyFloat(aiPropertyStore* p, const char* szName, float value)

{

ASSIMP_BEGIN_EXCEPTION_REGION();

PropertyMap* pp = reinterpret_cast<PropertyMap*>(p);

SetGenericProperty<float>(pp->floats,szName,value);

ASSIMP_END_EXCEPTION_REGION(void);

}

// ------------------------------------------------------------------------------------------------

// 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;

}

// ------------------------------------------------------------------------------------------------

assimp/code/Assimp.cpp at master · Tidal-Loop/assimp · GitHub

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