private void BeginSpriteBatch(RenderStateVariables renderStates, Layer layer, BeginType beginType)
{
Matrix matrix = GetZoomAndMatrix(layer);
SamplerState samplerState = GetSamplerState(renderStates);
RasterizerState rasterizerState = GetRasterizerState(renderStates, layer);
Rectangle scissorRectangle = new Rectangle();
if (rasterizerState.ScissorTestEnable)
{
scissorRectangle = layer.GetScissorRectangleFor(mCamera);
}
DepthStencilState depthStencilState = DepthStencilState.DepthRead;
if (beginType == BeginType.Begin)
{
mSpriteBatch.Begin(SpriteSortMode.Immediate, renderStates.BlendState,
samplerState,
depthStencilState,
rasterizerState,
null, matrix,
scissorRectangle);
}
else
{
mSpriteBatch.Push(SpriteSortMode.Immediate, renderStates.BlendState,
samplerState,
depthStencilState,
rasterizerState,
null, matrix,
scissorRectangle);
}
mDrawCallsPerFrame++;
}
