assimp.assimp/code/CApi/AssimpCExport.cpp

/*
---------------------------------------------------------------------------
Open Asset Import Library (assimp)
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  following disclaimer.

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OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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*/

/** @file AssimpCExport.cpp
Assimp C export interface. See Exporter.cpp for some notes.
*/

#ifndef ASSIMP_BUILD_NO_EXPORT

#include "CInterfaceIOWrapper.h"
#include <assimp/SceneCombiner.h>
#include "Common/ScenePrivate.h"
#include <assimp/Exporter.hpp>

using namespace Assimp;

// ------------------------------------------------------------------------------------------------
ASSIMP_API size_t aiGetExportFormatCount(void)
{
    return Exporter().GetExportFormatCount();
}

// ------------------------------------------------------------------------------------------------
ASSIMP_API const aiExportFormatDesc* aiGetExportFormatDescription( size_t index)
{
    // Note: this is valid as the index always pertains to a built-in exporter,
    // for which the returned structure is guaranteed to be of static storage duration.
    Exporter exporter;
    const aiExportFormatDesc* orig( exporter.GetExportFormatDescription( index ) );
    if (NULL == orig) {
        return NULL;
    }

    aiExportFormatDesc *desc = new aiExportFormatDesc;
    desc->description = new char[ strlen( orig->description ) + 1 ]();
    ::strncpy( (char*) desc->description, orig->description, strlen( orig->description ) );
    desc->fileExtension = new char[ strlen( orig->fileExtension ) + 1 ]();
    ::strncpy( ( char* ) desc->fileExtension, orig->fileExtension, strlen( orig->fileExtension ) );
    desc->id = new char[ strlen( orig->id ) + 1 ]();
    ::strncpy( ( char* ) desc->id, orig->id, strlen( orig->id ) );

    return desc;
}

// ------------------------------------------------------------------------------------------------
ASSIMP_API void aiReleaseExportFormatDescription( const aiExportFormatDesc *desc ) {
    if (NULL == desc) {
        return;
    }

    delete [] desc->description;
    delete [] desc->fileExtension;
    delete [] desc->id;
    delete desc;
}

// ------------------------------------------------------------------------------------------------
ASSIMP_API void aiCopyScene(const aiScene* pIn, aiScene** pOut)
{
    if (!pOut || !pIn) {
        return;
    }

    SceneCombiner::CopyScene(pOut,pIn,true);
    ScenePriv(*pOut)->mIsCopy = true;
}


// ------------------------------------------------------------------------------------------------
ASSIMP_API void aiFreeScene(const C_STRUCT aiScene* pIn)
{
    // note: aiReleaseImport() is also able to delete scene copies, but in addition
    // it also handles scenes with import metadata.
    delete pIn;
}


// ------------------------------------------------------------------------------------------------
ASSIMP_API aiReturn aiExportScene( const aiScene* pScene, const char* pFormatId, const char* pFileName, unsigned int pPreprocessing )
{
    return ::aiExportSceneEx(pScene,pFormatId,pFileName,NULL,pPreprocessing);
}


// ------------------------------------------------------------------------------------------------
ASSIMP_API aiReturn aiExportSceneEx( const aiScene* pScene, const char* pFormatId, const char* pFileName, aiFileIO* pIO, unsigned int pPreprocessing )
{
    Exporter exp;

    if (pIO) {
        exp.SetIOHandler(new CIOSystemWrapper(pIO));
    }
    return exp.Export(pScene,pFormatId,pFileName,pPreprocessing);
}


// ------------------------------------------------------------------------------------------------
ASSIMP_API const C_STRUCT aiExportDataBlob* aiExportSceneToBlob( const aiScene* pScene, const char* pFormatId, unsigned int pPreprocessing  )
{
    Exporter exp;
    if (!exp.ExportToBlob(pScene,pFormatId,pPreprocessing)) {
        return NULL;
    }
    const aiExportDataBlob* blob = exp.GetOrphanedBlob();
    ai_assert(blob);

    return blob;
}

// ------------------------------------------------------------------------------------------------
ASSIMP_API C_STRUCT void aiReleaseExportBlob( const aiExportDataBlob* pData )
{
    delete pData;
}

#endif // !ASSIMP_BUILD_NO_EXPORT