Method StartLayer

trinity/Sprite2d/Tr2Sprite2dScene.cpp:1593–1630

}

void Tr2Sprite2dScene::StartLayer( Tr2TextureAL& rt )
{
	CCP_STATS_ZONE( __FUNCTION__ );
	USE_MAIN_THREAD_RENDER_CONTEXT();

	D3DPERF_EVENT( L"Tr2Sprite2dScene::StartLayer" );

	// Finish outstanding rendering before changing render target
	IssueDrawCall();

	// A scene rendered in 3d renders in 2d within a layer
	m_is2dRenderContext = true;

	// Set the render target to the top level surface of the given texture
	renderContext.m_esm.PushRenderTarget( rt );

	Vector4 vpSize;
	vpSize.x = (float)rt.GetWidth();
	vpSize.y = (float)rt.GetHeight();
	vpSize.z = 0.0f;
	vpSize.w = 1.0f;
	m_viewportSizeVar = vpSize;

	// Coordinate transformation and clipping is reset - push the current stacks
	// onto a stack for later retrieval when we end the layer. Remember that layers
	// may be nested.
	StackOfStacksEntry_t entry;
	entry.transformStack = m_transformStack;
	entry.clipStack = m_clipStack;
	entry.renderTargetTexture = &rt;
	entry.renderTargetWrapper.CreateInstance();
	entry.renderTargetWrapper->SetRenderTarget( &rt );
	m_stackOfStacks.push_back( entry );

	m_transformStack = CCP_NEW( "Tr2Sprite2dScene/m_transformStack" ) TransformStack_t( "Tr2Sprite2dScene/m_transformStack" );
	m_clipStack = CCP_NEW( "Tr2Sprite2dScene/m_clipStack" ) ClipStack_t( "Tr2Sprite2dScene/m_clipStack" );
	m_clipStack->push_back( Tr2Sprite2dClipRect( 0.0f, 0.0f, vpSize.x, vpSize.y ) );
}

void Tr2Sprite2dScene::EndLayer( float x, float y, float width, float height, ITr2Sprite2dTexture* secondaryTexture )
{