public void OnEndScene(Context glImmediateContext, CBackBuffer backBuffer)
{
var boundProgram = glPipeline.Program;
var boundVertexArray = glPipeline.VertexArray;
var boundTexture = glPipeline.Textures[0];
var boundSampler = glPipeline.Samplers[0];
var boundFramebuffer = glPipeline.Framebuffer;
var boundViewportCount = glPipeline.Viewports.EnabledViewportCount;
if (tempViewports == null || tempViewports.Length < boundViewportCount)
tempViewports = new Viewport[boundViewportCount];
for (int i = 0; i < boundViewportCount; i++)
{
var glViewport = glPipeline.Viewports[i];
tempViewports[i] = new Viewport
{
Left = glViewport.X,
Top = glViewport.Y,
Width = glViewport.Width,
Height = glViewport.Height,
MinDepth = glViewport.Near,
MaxDepth = glViewport.Far
};
}
var boundCullFaceEnable = glPipeline.Rasterizer.CullFaceEnable;
var boundPolyginModeFront = glPipeline.Rasterizer.PolygonModeFront;
var boundPolygonModeBack = glPipeline.Rasterizer.PolygonModeBack;
var boundScissorEnable = glPipeline.Rasterizer.ScissorEnable;
var boundMultisampleEnable = glPipeline.Rasterizer.MultisampleEnable;
var boundLineSmoothEnable = glPipeline.Rasterizer.LineSmoothEnable;
var boundDepthTestEnable = glPipeline.DepthStencil.DepthTestEnable;
var boundDepthMask = glPipeline.DepthStencil.DepthMask;
var boundStencilTestEnable = glPipeline.DepthStencil.StencilTestEnable;
var boundBlendEnable = glPipeline.Blend.BlendEnable;
var boundAlphaToCoverageEnable = glPipeline.Blend.AlphaToCoverageEnable;
var boundSampleMask = glPipeline.Blend.SampleMask;
glPipeline.Program = program;
glPipeline.VertexArray = vertexArray;
if (backBuffer.Sampling != Sampling.NoMultisampling)
{
sourceFramebuffer.AttachTextureImage(glContext, FramebufferAttachmentPoint.Color0, (Texture2DMultisample)backBuffer.GLTexture);
destinationFramebuffer.AttachTextureImage(glContext, FramebufferAttachmentPoint.Color0, backBuffer.GLResolveTexture, 0);
glContext.BlitFramebuffer(
sourceFramebuffer, 0, 0, backBuffer.Width, backBuffer.Height,
destinationFramebuffer, 0, 0, backBuffer.Width, backBuffer.Height,
ClearBufferMask.ColorBufferBit, BlitFramebufferFilter.Nearest);
glPipeline.Textures[0] = backBuffer.GLResolveTexture;
}
else
{
glPipeline.Textures[0] = backBuffer.GLTexture;
}
glPipeline.Samplers[0] = sampler;
glPipeline.Framebuffer = null;
glPipeline.Viewports.EnabledViewportCount = 1;
glPipeline.Viewports[0].Set(backBuffer.Width, backBuffer.Height);
glPipeline.Rasterizer.CullFaceEnable = false;
glPipeline.Rasterizer.PolygonModeFront = PolygonMode.Fill;
glPipeline.Rasterizer.PolygonModeBack = PolygonMode.Fill;
glPipeline.Rasterizer.ScissorEnable = false;
glPipeline.Rasterizer.MultisampleEnable = false;
glPipeline.Rasterizer.LineSmoothEnable = false;
glPipeline.DepthStencil.DepthTestEnable = false;
glPipeline.DepthStencil.DepthMask = false;
glPipeline.DepthStencil.StencilTestEnable = false;
glPipeline.Blend.BlendEnable = false;
glPipeline.Blend.AlphaToCoverageEnable = false;
glPipeline.Blend.SampleMask = 0xffffffff;
glImmediateContext.DrawElements(BeginMode.Triangles, 6, DrawElementsType.UnsignedShort, 0);
glPipeline.Program = boundProgram;
glPipeline.VertexArray = boundVertexArray;
glPipeline.Textures[0] = boundTexture;
glPipeline.Samplers[0] = boundSampler;
glPipeline.Framebuffer = boundFramebuffer;
for (int i = 0; i < boundViewportCount; i++)
{
glPipeline.Viewports[i].Set(
tempViewports[i].Left, tempViewports[i].Top,
tempViewports[i].Width, tempViewports[i].Height,
tempViewports[i].MinDepth, tempViewports[i].MaxDepth);
}
glPipeline.Viewports.EnabledViewportCount = boundViewportCount;
glPipeline.Rasterizer.CullFaceEnable = boundCullFaceEnable;
glPipeline.Rasterizer.PolygonModeFront = boundPolyginModeFront;
glPipeline.Rasterizer.PolygonModeBack = boundPolygonModeBack;
glPipeline.Rasterizer.ScissorEnable = boundScissorEnable;
glPipeline.Rasterizer.MultisampleEnable = boundMultisampleEnable;
glPipeline.Rasterizer.LineSmoothEnable = boundLineSmoothEnable;
glPipeline.DepthStencil.DepthTestEnable = boundDepthTestEnable;
glPipeline.DepthStencil.DepthMask = boundDepthMask;
glPipeline.DepthStencil.StencilTestEnable = boundStencilTestEnable;
glPipeline.Blend.BlendEnable = boundBlendEnable;
glPipeline.Blend.AlphaToCoverageEnable = boundAlphaToCoverageEnable;
glPipeline.Blend.SampleMask = boundSampleMask;
}