Class Tr2PersistentPerObjectData

trinity/Tr2PersistentPerObjectData.h:21–166

// --------------------------------------------------------------------------------------
template <typename Owner>
class Tr2PersistentPerObjectData
	: public Tr2DeviceResource
{
public:
	Tr2PersistentPerObjectData() :
		m_bufferDirty( true )
	{
	}

	// ----------------------------------------------------------------------------------
	// Description:
	//   Invalidates dirty flag for the object. Next time it is requested to apply its
	//   constant buffer, the object fill re-fill it with new data.
	// ----------------------------------------------------------------------------------
	void InvalidateBufferData()
	{
		m_bufferDirty = true;
	}

	void UpdateBuffer( Owner& owner, Tr2RenderContextEnum::ShaderType shaderType )
	{
#if TRINITY_PLATFORM != TRINITY_DIRECTX11
		if( !m_bufferDirty )
		{
			return;
		}
		uint32_t size = owner.GetPerObjectDataSize( shaderType );
		if( size > 0 )
		{
			USE_MAIN_THREAD_RENDER_CONTEXT();

			auto& buffer = m_constantBuffer;
			if( !buffer.IsValid() || size > buffer.GetSize() )
			{
				CR_RETURN( buffer.Create( size, renderContext.GetPrimaryRenderContext() ) );
			}
			void* data = nullptr;

			if( SUCCEEDED( buffer.Lock( &data, renderContext ) ) && data )
			{
				owner.UpdatePerObjectBuffer( shaderType, size, data );
				buffer.Unlock( renderContext );
			}
		}
		m_bufferDirty = false;
#endif
	}

	Tr2ConstantBufferAL& UpdateBuffer(
		Owner& owner,
		Tr2RenderContextEnum::ShaderType shaderType,
		Tr2RenderContext& renderContext )
	{
		if( m_bufferDirty )
		{
			uint32_t size = owner.GetPerObjectDataSize( shaderType );
			if( size > 0 )
			{