Method updatePrimitives

core/2d/FastTMXLayer.cpp:426–488

}

void FastTMXLayer::updatePrimitives()
{
    
    for (auto& e : _customCommands)
    {
        e.second->setIndexDrawInfo(0, 0);
    }
    
    auto blendfunc =
        _texture->hasPremultipliedAlpha() ? BlendFunc::ALPHA_PREMULTIPLIED : BlendFunc::ALPHA_NON_PREMULTIPLIED;
    for (const auto& iter : _indicesVertexZNumber)
    {
        int start = _indicesVertexZOffsets.at(iter.first);

        auto commandIter = _customCommands.find(iter.first);
        if (_customCommands.end() == commandIter)
        {
            auto command = new CustomCommand();
            command->setVertexBuffer(_vertexBuffer);

#ifdef AX_FAST_TILEMAP_32_BIT_INDICES
            CustomCommand::IndexFormat indexFormat = CustomCommand::IndexFormat::U_INT;
#else
            CustomCommand::IndexFormat indexFormat = CustomCommand::IndexFormat::U_SHORT;
#endif
            command->setIndexBuffer(_indexBuffer, indexFormat);

            command->setIndexDrawInfo(start * 6, iter.second * 6);

            auto& pipelineDescriptor = command->getPipelineDescriptor();

            if (_useAutomaticVertexZ)
            {
                AX_SAFE_RELEASE(pipelineDescriptor.programState);
                auto* program =
                    backend::Program::getBuiltinProgram(backend::ProgramType::POSITION_TEXTURE_COLOR_ALPHA_TEST);
                auto programState               = new backend::ProgramState(program);
                pipelineDescriptor.programState = programState;
                _alphaValueLocation             = pipelineDescriptor.programState->getUniformLocation("u_alpha_value");
                pipelineDescriptor.programState->setUniform(_alphaValueLocation, &_alphaFuncValue,
                                                            sizeof(_alphaFuncValue));
            }
            else
            {
                AX_SAFE_RELEASE(pipelineDescriptor.programState);
                auto* program     = backend::Program::getBuiltinProgram(backend::ProgramType::POSITION_TEXTURE_COLOR);
                auto programState = new backend::ProgramState(program);
                pipelineDescriptor.programState = programState;
            }

            _mvpMatrixLocaiton = pipelineDescriptor.programState->getUniformLocation("u_MVPMatrix");
            _textureLocation   = pipelineDescriptor.programState->getUniformLocation("u_tex0");
            pipelineDescriptor.programState->setTexture(_textureLocation, 0, _texture->getBackendTexture());
            command->init(_globalZOrder, blendfunc);

            _customCommands[iter.first] = command;
        }
        else