Method LoadLWOBSurface

code/AssetLib/LWO/LWOBLoader.cpp:228–400

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// ------------------------------------------------------------------------------------------------
void LWOImporter::LoadLWOBSurface(unsigned int size) {
    LE_NCONST uint8_t* const end = mFileBuffer + size;

    mSurfaces->push_back( LWO::Surface () );
    LWO::Surface& surf = mSurfaces->back();
    LWO::Texture *pTex = nullptr;

    GetS0(surf.mName,size);
    bool running = true;
    while (running)    {
        if (mFileBuffer + 6 >= end)
            break;

        IFF::SubChunkHeader head = IFF::LoadSubChunk(mFileBuffer);

        /*  A single test file (sonycam.lwo) seems to have invalid surface chunks.
         *  I'm assuming it's the fault of a single, unknown exporter so there are
         *  probably THOUSANDS of them. Here's a dirty workaround:
         *
         *  We don't break if the chunk limit is exceeded. Instead, we're computing
         *  how much storage is actually left and work with this value from now on.
         */
        if (mFileBuffer + head.length > end) {
            ASSIMP_LOG_ERROR("LWOB: Invalid surface chunk length. Trying to continue.");
            head.length = (uint16_t) (end - mFileBuffer);
        }

        uint8_t* const next = mFileBuffer+head.length;
        switch (head.type) {
            // diffuse color
            case AI_LWO_COLR:
                {
                    AI_LWO_VALIDATE_CHUNK_LENGTH(head.length,COLR,3);
                    surf.mColor.r = GetU1() / 255.0f;
                    surf.mColor.g = GetU1() / 255.0f;
                    surf.mColor.b = GetU1() / 255.0f;
                    break;
                }
            // diffuse strength ...
            case AI_LWO_DIFF:
                {
                    AI_LWO_VALIDATE_CHUNK_LENGTH(head.length,DIFF,2);
                    surf.mDiffuseValue = GetU2() / 255.0f;
                    break;
                }
            // specular strength ...
            case AI_LWO_SPEC:
                {
                    AI_LWO_VALIDATE_CHUNK_LENGTH(head.length,SPEC,2);
                    surf.mSpecularValue = GetU2() / 255.0f;
                    break;
                }
            // luminosity ...
            case AI_LWO_LUMI:
                {
                    AI_LWO_VALIDATE_CHUNK_LENGTH(head.length,LUMI,2);
                    surf.mLuminosity = GetU2() / 255.0f;
                    break;