Method processRenderCommand

core/renderer/Renderer.cpp:289–351

}

void Renderer::processRenderCommand(RenderCommand* command)
{
    auto commandType = command->getType();
    switch (commandType)
    {
    case RenderCommand::Type::TRIANGLES_COMMAND:
    {
        // flush other queues
        flush3D();

        auto cmd = static_cast<TrianglesCommand*>(command);

        // flush own queue when buffer is full
        if (_queuedTotalVertexCount + cmd->getVertexCount() > VBO_SIZE ||
            _queuedTotalIndexCount + cmd->getIndexCount() > INDEX_VBO_SIZE)
        {
            AXASSERT(cmd->getVertexCount() >= 0 && cmd->getVertexCount() < VBO_SIZE,
                     "VBO for vertex is not big enough, please break the data down or use customized render command");
            AXASSERT(cmd->getIndexCount() >= 0 && cmd->getIndexCount() < INDEX_VBO_SIZE,
                     "VBO for index is not big enough, please break the data down or use customized render command");
            drawBatchedTriangles();

            _queuedTotalIndexCount = _queuedTotalVertexCount = 0;
#ifdef AX_USE_METAL
            _queuedIndexCount = _queuedVertexCount = 0;
            _triangleCommandBufferManager.prepareNextBuffer();
            _vertexBuffer = _triangleCommandBufferManager.getVertexBuffer();
            _indexBuffer  = _triangleCommandBufferManager.getIndexBuffer();
#endif
        }

        // queue it
        _queuedTriangleCommands.emplace_back(cmd);
#ifdef AX_USE_METAL
        _queuedIndexCount += cmd->getIndexCount();
        _queuedVertexCount += cmd->getVertexCount();
#endif
        _queuedTotalVertexCount += cmd->getVertexCount();
        _queuedTotalIndexCount += cmd->getIndexCount();
    }
    break;
    case RenderCommand::Type::MESH_COMMAND:
        flush2D();
        drawMeshCommand(command);
        break;
    case RenderCommand::Type::GROUP_COMMAND:
        processGroupCommand(static_cast<GroupCommand*>(command));
        _groupCommandPool.emplace_back(static_cast<GroupCommand*>(command));
        break;
    case RenderCommand::Type::CUSTOM_COMMAND:
        flush();
        drawCustomCommand(command);
        break;
    case RenderCommand::Type::CALLBACK_COMMAND:
        flush();
        static_cast<CallbackCommand*>(command)->execute();
        _callbackCommandsPool.emplace_back(static_cast<CallbackCommand*>(command));
        break;