AssbinLoader.cpp

/*
---------------------------------------------------------------------------
Open Asset Import Library (assimp)
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All rights reserved.

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  copyright notice, this list of conditions and the
  following disclaimer.

* Redistributions in binary form must reproduce the above
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  derived from this software without specific prior
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OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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*/

/** @file  AssbinLoader.cpp
 *  @brief Implementation of the .assbin importer class
 *
 *  see assbin_chunks.h
 */

#ifndef ASSIMP_BUILD_NO_ASSBIN_IMPORTER

// internal headers
#include "AssbinLoader.h"
#include "assbin_chunks.h"
#include "MemoryIOWrapper.h"
#include <assimp/mesh.h>
#include <assimp/anim.h>
#include <assimp/scene.h>
#include <assimp/importerdesc.h>

#ifdef ASSIMP_BUILD_NO_OWN_ZLIB
#   include <zlib.h>
#else
#   include <contrib/zlib/zlib.h>
#endif

using namespace Assimp;

static const aiImporterDesc desc = {
    ".assbin Importer",
    "Gargaj / Conspiracy",
    "",
    "",
    aiImporterFlags_SupportBinaryFlavour | aiImporterFlags_SupportCompressedFlavour,
    0,
    0,
    0,
    0,
    "assbin"
};

const aiImporterDesc* AssbinImporter::GetInfo() const
{
    return &desc;
}

bool AssbinImporter::CanRead( const std::string& pFile, IOSystem* pIOHandler, bool /*checkSig*/ ) const
{
    IOStream * in = pIOHandler->Open(pFile);
    if (!in)
        return false;

    char s[32];
    in->Read( s, sizeof(char), 32 );

    pIOHandler->Close(in);

    return strncmp( s, "ASSIMP.binary-dump.", 19 ) == 0;
}

template <typename T>
T Read(IOStream * stream)
{
    T t;
    stream->Read( &t, sizeof(T), 1 );
    return t;
}

template <>
aiVector3D Read<aiVector3D>(IOStream * stream)
{
    aiVector3D v;
    v.x = Read<float>(stream);
    v.y = Read<float>(stream);
    v.z = Read<float>(stream);
    return v;
}

template <>
aiColor4D Read<aiColor4D>(IOStream * stream)
{
    aiColor4D c;
    c.r = Read<float>(stream);
    c.g = Read<float>(stream);
    c.b = Read<float>(stream);
    c.a = Read<float>(stream);
    return c;
}

template <>
aiQuaternion Read<aiQuaternion>(IOStream * stream)
{
    aiQuaternion v;
    v.w = Read<float>(stream);
    v.x = Read<float>(stream);
    v.y = Read<float>(stream);
    v.z = Read<float>(stream);
    return v;
}

template <>
aiString Read<aiString>(IOStream * stream)
{
    aiString s;
    stream->Read(&s.length,4,1);
    stream->Read(s.data,s.length,1);
    s.data[s.length] = 0;
    return s;
}

template <>
aiVertexWeight Read<aiVertexWeight>(IOStream * stream)
{
    aiVertexWeight w;
    w.mVertexId = Read<unsigned int>(stream);
    w.mWeight = Read<float>(stream);
    return w;
}

template <>
aiMatrix4x4 Read<aiMatrix4x4>(IOStream * stream)
{
    aiMatrix4x4 m;
    for (unsigned int i = 0; i < 4;++i) {
        for (unsigned int i2 = 0; i2 < 4;++i2) {
            m[i][i2] = Read<float>(stream);
        }
    }
    return m;
}

template <>
aiVectorKey Read<aiVectorKey>(IOStream * stream)
{
    aiVectorKey v;
    v.mTime = Read<double>(stream);
    v.mValue = Read<aiVector3D>(stream);
    return v;
}

template <>
aiQuatKey Read<aiQuatKey>(IOStream * stream)
{
    aiQuatKey v;
    v.mTime = Read<double>(stream);
    v.mValue = Read<aiQuaternion>(stream);
    return v;
}

template <typename T>
void ReadArray(IOStream * stream, T * out, unsigned int size)
{
    for (unsigned int i=0; i<size; i++) out[i] = Read<T>(stream);
}

template <typename T> void ReadBounds( IOStream * stream, T* /*p*/, unsigned int n )
{
    // not sure what to do here, the data isn't really useful.
    stream->Seek( sizeof(T) * n, aiOrigin_CUR );
}

void AssbinImporter::ReadBinaryNode( IOStream * stream, aiNode** node, aiNode* parent ) {
    uint32_t chunkID = Read<uint32_t>(stream);
    (void)(chunkID);
    ai_assert(chunkID == ASSBIN_CHUNK_AINODE);
    /*uint32_t size =*/ Read<uint32_t>(stream);

    *node = new aiNode();

    (*node)->mName = Read<aiString>(stream);
    (*node)->mTransformation = Read<aiMatrix4x4>(stream);
    (*node)->mNumChildren = Read<unsigned int>(stream);
    (*node)->mNumMeshes = Read<unsigned int>(stream);
	unsigned int nb_metadata = Read<unsigned int>(stream);

    if(parent) {
        (*node)->mParent = parent;
    }

    if ((*node)->mNumMeshes) {
        (*node)->mMeshes = new unsigned int[(*node)->mNumMeshes];
        for (unsigned int i = 0; i < (*node)->mNumMeshes; ++i) {
            (*node)->mMeshes[i] = Read<unsigned int>(stream);
        }
    }

    if ((*node)->mNumChildren) {
        (*node)->mChildren = new aiNode*[(*node)->mNumChildren];
        for (unsigned int i = 0; i < (*node)->mNumChildren; ++i) {
            ReadBinaryNode( stream, &(*node)->mChildren[i], *node );
        }
    }

    if ( nb_metadata > 0 ) {
        (*node)->mMetaData = aiMetadata::Alloc(nb_metadata);
        for (unsigned int i = 0; i < nb_metadata; ++i) {
            (*node)->mMetaData->mKeys[i] = Read<aiString>(stream);
            (*node)->mMetaData->mValues[i].mType = (aiMetadataType) Read<uint16_t>(stream);
            void* data( nullptr );

            switch ((*node)->mMetaData->mValues[i].mType) {
                case AI_BOOL:
                    data = new bool(Read<bool>(stream));
                    break;
                case AI_INT32:
                    data = new int32_t(Read<int32_t>(stream));
                    break;
                case AI_UINT64:
                    data = new uint64_t(Read<uint64_t>(stream));
                    break;
                case AI_FLOAT:
                    data = new float(Read<float>(stream));
                    break;
                case AI_DOUBLE:
                    data = new double(Read<double>(stream));
                    break;
                case AI_AISTRING:
                    data = new aiString(Read<aiString>(stream));
                    break;
                case AI_AIVECTOR3D:
                    data = new aiVector3D(Read<aiVector3D>(stream));
                    break;
#ifndef SWIG
                case FORCE_32BIT:
#endif // SWIG
                default:
                    break;
            }

			(*node)->mMetaData->mValues[i].mData = data;
		}
	}
}

// -----------------------------------------------------------------------------------
void AssbinImporter::ReadBinaryBone( IOStream * stream, aiBone* b )
{
    uint32_t chunkID = Read<uint32_t>(stream);
    (void)(chunkID);
    ai_assert(chunkID == ASSBIN_CHUNK_AIBONE);
    /*uint32_t size =*/ Read<uint32_t>(stream);

    b->mName = Read<aiString>(stream);
    b->mNumWeights = Read<unsigned int>(stream);
    b->mOffsetMatrix = Read<aiMatrix4x4>(stream);

    // for the moment we write dumb min/max values for the bones, too.
    // maybe I'll add a better, hash-like solution later
    if (shortened)
    {
        ReadBounds(stream,b->mWeights,b->mNumWeights);
    } // else write as usual
    else
    {
        b->mWeights = new aiVertexWeight[b->mNumWeights];
        ReadArray<aiVertexWeight>(stream,b->mWeights,b->mNumWeights);
    }
}


void AssbinImporter::ReadBinaryMesh( IOStream * stream, aiMesh* mesh )
{
    uint32_t chunkID = Read<uint32_t>(stream);
    (void)(chunkID);
    ai_assert(chunkID == ASSBIN_CHUNK_AIMESH);
    /*uint32_t size =*/ Read<uint32_t>(stream);

    mesh->mPrimitiveTypes = Read<unsigned int>(stream);
    mesh->mNumVertices = Read<unsigned int>(stream);
    mesh->mNumFaces = Read<unsigned int>(stream);
    mesh->mNumBones = Read<unsigned int>(stream);
    mesh->mMaterialIndex = Read<unsigned int>(stream);

    // first of all, write bits for all existent vertex components
    unsigned int c = Read<unsigned int>(stream);

    if (c & ASSBIN_MESH_HAS_POSITIONS)
    {
        if (shortened) {
            ReadBounds(stream,mesh->mVertices,mesh->mNumVertices);
        } // else write as usual
        else
        {
            mesh->mVertices = new aiVector3D[mesh->mNumVertices];
            ReadArray<aiVector3D>(stream,mesh->mVertices,mesh->mNumVertices);
        }
    }
    if (c & ASSBIN_MESH_HAS_NORMALS)
    {
        if (shortened) {
            ReadBounds(stream,mesh->mNormals,mesh->mNumVertices);
        } // else write as usual
        else
        {
            mesh->mNormals = new aiVector3D[mesh->mNumVertices];
            ReadArray<aiVector3D>(stream,mesh->mNormals,mesh->mNumVertices);
        }
    }
    if (c & ASSBIN_MESH_HAS_TANGENTS_AND_BITANGENTS)
    {
        if (shortened) {
            ReadBounds(stream,mesh->mTangents,mesh->mNumVertices);
            ReadBounds(stream,mesh->mBitangents,mesh->mNumVertices);
        } // else write as usual
        else
        {
            mesh->mTangents = new aiVector3D[mesh->mNumVertices];
            ReadArray<aiVector3D>(stream,mesh->mTangents,mesh->mNumVertices);
            mesh->mBitangents = new aiVector3D[mesh->mNumVertices];
            ReadArray<aiVector3D>(stream,mesh->mBitangents,mesh->mNumVertices);
        }
    }
    for (unsigned int n = 0; n < AI_MAX_NUMBER_OF_COLOR_SETS;++n)
    {
        if (!(c & ASSBIN_MESH_HAS_COLOR(n)))
            break;

        if (shortened)
        {
            ReadBounds(stream,mesh->mColors[n],mesh->mNumVertices);
        } // else write as usual
        else
        {
            mesh->mColors[n] = new aiColor4D[mesh->mNumVertices];
            ReadArray<aiColor4D>(stream,mesh->mColors[n],mesh->mNumVertices);
        }
    }
    for (unsigned int n = 0; n < AI_MAX_NUMBER_OF_TEXTURECOORDS;++n)
    {
        if (!(c & ASSBIN_MESH_HAS_TEXCOORD(n)))
            break;

        // write number of UV components
        mesh->mNumUVComponents[n] = Read<unsigned int>(stream);

        if (shortened) {
            ReadBounds(stream,mesh->mTextureCoords[n],mesh->mNumVertices);
        } // else write as usual
        else
        {
            mesh->mTextureCoords[n] = new aiVector3D[mesh->mNumVertices];
            ReadArray<aiVector3D>(stream,mesh->mTextureCoords[n],mesh->mNumVertices);
        }
    }

    // write faces. There are no floating-point calculations involved
    // in these, so we can write a simple hash over the face data
    // to the dump file. We generate a single 32 Bit hash for 512 faces
    // using Assimp's standard hashing function.
    if (shortened) {
        Read<unsigned int>(stream);
    }
    else // else write as usual
    {
        // if there are less than 2^16 vertices, we can simply use 16 bit integers ...
        mesh->mFaces = new aiFace[mesh->mNumFaces];
        for (unsigned int i = 0; i < mesh->mNumFaces;++i) {
            aiFace& f = mesh->mFaces[i];

            static_assert(AI_MAX_FACE_INDICES <= 0xffff, "AI_MAX_FACE_INDICES <= 0xffff");
            f.mNumIndices = Read<uint16_t>(stream);
            f.mIndices = new unsigned int[f.mNumIndices];

            for (unsigned int a = 0; a < f.mNumIndices;++a) {
                if (mesh->mNumVertices < (1u<<16))
                {
                    f.mIndices[a] = Read<uint16_t>(stream);
                }
                else
                {
                    f.mIndices[a] = Read<unsigned int>(stream);
                }
            }
        }
    }

    // write bones
    if (mesh->mNumBones) {
        mesh->mBones = new C_STRUCT aiBone*[mesh->mNumBones];
        for (unsigned int a = 0; a < mesh->mNumBones;++a) {
            mesh->mBones[a] = new aiBone();
            ReadBinaryBone(stream,mesh->mBones[a]);
        }
    }
}

void AssbinImporter::ReadBinaryMaterialProperty(IOStream * stream, aiMaterialProperty* prop)
{
    uint32_t chunkID = Read<uint32_t>(stream);
    (void)(chunkID);
    ai_assert(chunkID == ASSBIN_CHUNK_AIMATERIALPROPERTY);
    /*uint32_t size =*/ Read<uint32_t>(stream);

    prop->mKey = Read<aiString>(stream);
    prop->mSemantic = Read<unsigned int>(stream);
    prop->mIndex = Read<unsigned int>(stream);

    prop->mDataLength = Read<unsigned int>(stream);
    prop->mType = (aiPropertyTypeInfo)Read<unsigned int>(stream);
    prop->mData = new char [ prop->mDataLength ];
    stream->Read(prop->mData,1,prop->mDataLength);
}

// -----------------------------------------------------------------------------------
void AssbinImporter::ReadBinaryMaterial(IOStream * stream, aiMaterial* mat)
{
    uint32_t chunkID = Read<uint32_t>(stream);
    (void)(chunkID);
    ai_assert(chunkID == ASSBIN_CHUNK_AIMATERIAL);
    /*uint32_t size =*/ Read<uint32_t>(stream);

    mat->mNumAllocated = mat->mNumProperties = Read<unsigned int>(stream);
    if (mat->mNumProperties)
    {
        if (mat->mProperties)
        {
            delete[] mat->mProperties;
        }
        mat->mProperties = new aiMaterialProperty*[mat->mNumProperties];
        for (unsigned int i = 0; i < mat->mNumProperties;++i) {
            mat->mProperties[i] = new aiMaterialProperty();
            ReadBinaryMaterialProperty( stream, mat->mProperties[i]);
        }
    }
}

// -----------------------------------------------------------------------------------
void AssbinImporter::ReadBinaryNodeAnim(IOStream * stream, aiNodeAnim* nd)
{
    uint32_t chunkID = Read<uint32_t>(stream);
    (void)(chunkID);
    ai_assert(chunkID == ASSBIN_CHUNK_AINODEANIM);
    /*uint32_t size =*/ Read<uint32_t>(stream);

    nd->mNodeName = Read<aiString>(stream);
    nd->mNumPositionKeys = Read<unsigned int>(stream);
    nd->mNumRotationKeys = Read<unsigned int>(stream);
    nd->mNumScalingKeys = Read<unsigned int>(stream);
    nd->mPreState = (aiAnimBehaviour)Read<unsigned int>(stream);
    nd->mPostState = (aiAnimBehaviour)Read<unsigned int>(stream);

    if (nd->mNumPositionKeys) {
        if (shortened) {
            ReadBounds(stream,nd->mPositionKeys,nd->mNumPositionKeys);

        } // else write as usual
        else {
            nd->mPositionKeys = new aiVectorKey[nd->mNumPositionKeys];
            ReadArray<aiVectorKey>(stream,nd->mPositionKeys,nd->mNumPositionKeys);
        }
    }
    if (nd->mNumRotationKeys) {
        if (shortened) {
            ReadBounds(stream,nd->mRotationKeys,nd->mNumRotationKeys);

        } // else write as usual
        else
        {
            nd->mRotationKeys = new aiQuatKey[nd->mNumRotationKeys];
            ReadArray<aiQuatKey>(stream,nd->mRotationKeys,nd->mNumRotationKeys);
        }
    }
    if (nd->mNumScalingKeys) {
        if (shortened) {
            ReadBounds(stream,nd->mScalingKeys,nd->mNumScalingKeys);

        } // else write as usual
        else
        {
            nd->mScalingKeys = new aiVectorKey[nd->mNumScalingKeys];
            ReadArray<aiVectorKey>(stream,nd->mScalingKeys,nd->mNumScalingKeys);
        }
    }
}


// -----------------------------------------------------------------------------------
void AssbinImporter::ReadBinaryAnim( IOStream * stream, aiAnimation* anim )
{
    uint32_t chunkID = Read<uint32_t>(stream);
    (void)(chunkID);
    ai_assert(chunkID == ASSBIN_CHUNK_AIANIMATION);
    /*uint32_t size =*/ Read<uint32_t>(stream);

    anim->mName = Read<aiString> (stream);
    anim->mDuration = Read<double> (stream);
    anim->mTicksPerSecond = Read<double> (stream);
    anim->mNumChannels = Read<unsigned int>(stream);

    if (anim->mNumChannels)
    {
        anim->mChannels = new aiNodeAnim*[ anim->mNumChannels ];
        for (unsigned int a = 0; a < anim->mNumChannels;++a) {
            anim->mChannels[a] = new aiNodeAnim();
            ReadBinaryNodeAnim(stream,anim->mChannels[a]);
        }
    }
}

void AssbinImporter::ReadBinaryTexture(IOStream * stream, aiTexture* tex)
{
    uint32_t chunkID = Read<uint32_t>(stream);
    (void)(chunkID);
    ai_assert(chunkID == ASSBIN_CHUNK_AITEXTURE);
    /*uint32_t size =*/ Read<uint32_t>(stream);

    tex->mWidth = Read<unsigned int>(stream);
    tex->mHeight = Read<unsigned int>(stream);
    stream->Read( tex->achFormatHint, sizeof(char), 4 );

    if(!shortened) {
        if (!tex->mHeight) {
            tex->pcData = new aiTexel[ tex->mWidth ];
            stream->Read(tex->pcData,1,tex->mWidth);
        }
        else {
            tex->pcData = new aiTexel[ tex->mWidth*tex->mHeight ];
            stream->Read(tex->pcData,1,tex->mWidth*tex->mHeight*4);
        }
    }

}

// -----------------------------------------------------------------------------------
void AssbinImporter::ReadBinaryLight( IOStream * stream, aiLight* l )
{
    uint32_t chunkID = Read<uint32_t>(stream);
    (void)(chunkID);
    ai_assert(chunkID == ASSBIN_CHUNK_AILIGHT);
    /*uint32_t size =*/ Read<uint32_t>(stream);

    l->mName = Read<aiString>(stream);
    l->mType = (aiLightSourceType)Read<unsigned int>(stream);

    if (l->mType != aiLightSource_DIRECTIONAL) {
        l->mAttenuationConstant = Read<float>(stream);
        l->mAttenuationLinear = Read<float>(stream);
        l->mAttenuationQuadratic = Read<float>(stream);
    }

    l->mColorDiffuse = Read<aiColor3D>(stream);
    l->mColorSpecular = Read<aiColor3D>(stream);
    l->mColorAmbient = Read<aiColor3D>(stream);

    if (l->mType == aiLightSource_SPOT) {
        l->mAngleInnerCone = Read<float>(stream);
        l->mAngleOuterCone = Read<float>(stream);
    }

}

// -----------------------------------------------------------------------------------
void AssbinImporter::ReadBinaryCamera( IOStream * stream, aiCamera* cam )
{
    uint32_t chunkID = Read<uint32_t>(stream);
    (void)(chunkID);
    ai_assert(chunkID == ASSBIN_CHUNK_AICAMERA);
    /*uint32_t size =*/ Read<uint32_t>(stream);

    cam->mName = Read<aiString>(stream);
    cam->mPosition = Read<aiVector3D>(stream);
    cam->mLookAt = Read<aiVector3D>(stream);
    cam->mUp = Read<aiVector3D>(stream);
    cam->mHorizontalFOV = Read<float>(stream);
    cam->mClipPlaneNear = Read<float>(stream);
    cam->mClipPlaneFar = Read<float>(stream);
    cam->mAspect = Read<float>(stream);
}

void AssbinImporter::ReadBinaryScene( IOStream * stream, aiScene* scene )
{
    uint32_t chunkID = Read<uint32_t>(stream);
    (void)(chunkID);
    ai_assert(chunkID == ASSBIN_CHUNK_AISCENE);
    /*uint32_t size =*/ Read<uint32_t>(stream);

    scene->mFlags         = Read<unsigned int>(stream);
    scene->mNumMeshes     = Read<unsigned int>(stream);
    scene->mNumMaterials  = Read<unsigned int>(stream);
    scene->mNumAnimations = Read<unsigned int>(stream);
    scene->mNumTextures   = Read<unsigned int>(stream);
    scene->mNumLights     = Read<unsigned int>(stream);
    scene->mNumCameras    = Read<unsigned int>(stream);

    // Read node graph
    scene->mRootNode = new aiNode[1];
    ReadBinaryNode( stream, &scene->mRootNode, (aiNode*)NULL );

    // Read all meshes
    if (scene->mNumMeshes)
    {
        scene->mMeshes = new aiMesh*[scene->mNumMeshes];
        for (unsigned int i = 0; i < scene->mNumMeshes;++i) {
            scene->mMeshes[i] = new aiMesh();
            ReadBinaryMesh( stream,scene->mMeshes[i]);
        }
    }

    // Read materials
    if (scene->mNumMaterials)
    {
        scene->mMaterials = new aiMaterial*[scene->mNumMaterials];
        for (unsigned int i = 0; i< scene->mNumMaterials; ++i) {
            scene->mMaterials[i] = new aiMaterial();
            ReadBinaryMaterial(stream,scene->mMaterials[i]);
        }
    }

    // Read all animations
    if (scene->mNumAnimations)
    {
        scene->mAnimations = new aiAnimation*[scene->mNumAnimations];
        for (unsigned int i = 0; i < scene->mNumAnimations;++i) {
            scene->mAnimations[i] = new aiAnimation();
            ReadBinaryAnim(stream,scene->mAnimations[i]);
        }
    }

    // Read all textures
    if (scene->mNumTextures)
    {
        scene->mTextures = new aiTexture*[scene->mNumTextures];
        for (unsigned int i = 0; i < scene->mNumTextures;++i) {
            scene->mTextures[i] = new aiTexture();
            ReadBinaryTexture(stream,scene->mTextures[i]);
        }
    }

    // Read lights
    if (scene->mNumLights)
    {
        scene->mLights = new aiLight*[scene->mNumLights];
        for (unsigned int i = 0; i < scene->mNumLights;++i) {
            scene->mLights[i] = new aiLight();
            ReadBinaryLight(stream,scene->mLights[i]);
        }
    }

    // Read cameras
    if (scene->mNumCameras)
    {
        scene->mCameras = new aiCamera*[scene->mNumCameras];
        for (unsigned int i = 0; i < scene->mNumCameras;++i) {
            scene->mCameras[i] = new aiCamera();
            ReadBinaryCamera(stream,scene->mCameras[i]);
        }
    }

}

void AssbinImporter::InternReadFile( const std::string& pFile, aiScene* pScene, IOSystem* pIOHandler )
{
    IOStream * stream = pIOHandler->Open(pFile,"rb");
    if (!stream)
        return;

    stream->Seek( 44, aiOrigin_CUR ); // signature

    /*unsigned int versionMajor =*/ Read<unsigned int>(stream);
    /*unsigned int versionMinor =*/ Read<unsigned int>(stream);
    /*unsigned int versionRevision =*/ Read<unsigned int>(stream);
    /*unsigned int compileFlags =*/ Read<unsigned int>(stream);

    shortened = Read<uint16_t>(stream) > 0;
    compressed = Read<uint16_t>(stream) > 0;

    if (shortened)
        throw DeadlyImportError( "Shortened binaries are not supported!" );

    stream->Seek( 256, aiOrigin_CUR ); // original filename
    stream->Seek( 128, aiOrigin_CUR ); // options
    stream->Seek( 64, aiOrigin_CUR ); // padding

    if (compressed)
    {
        uLongf uncompressedSize = Read<uint32_t>(stream);
        uLongf compressedSize = static_cast<uLongf>(stream->FileSize() - stream->Tell());

        unsigned char * compressedData = new unsigned char[ compressedSize ];
        stream->Read( compressedData, 1, compressedSize );

        unsigned char * uncompressedData = new unsigned char[ uncompressedSize ];

        uncompress( uncompressedData, &uncompressedSize, compressedData, compressedSize );

        MemoryIOStream io( uncompressedData, uncompressedSize );

        ReadBinaryScene(&io,pScene);

        delete[] uncompressedData;
        delete[] compressedData;
    }
    else
    {
        ReadBinaryScene(stream,pScene);
    }

    pIOHandler->Close(stream);
}

#endif // !! ASSIMP_BUILD_NO_ASSBIN_IMPORTER