public int NumberOfSamples(ResizeSamplerType type)
{
switch (type)
{
case ResizeSamplerType.NearestNeighbour:
return(1);
case ResizeSamplerType.Average2x2:
return(4);
case ResizeSamplerType.Average4x4:
return(16);
}
return(0);
}
public DownSampleArrayComponent[] ReturnWeightsAndOffsets(ResizeSamplerType type)
{
switch (type)
{
case ResizeSamplerType.NearestNeighbour:
return(_nearestNeighbour);
case ResizeSamplerType.Average2x2:
return(_average2x2);
case ResizeSamplerType.Average4x4:
return(_average4x4);
}
return(null);
}
public void Render(CommandList cl, GpuSurface source, GpuSurface target, ResizeSamplerType downSampleType)
{
if (_sampleType == null || _sampleType != downSampleType)
{
_sampleType = downSampleType;
LoadWeightsAndOffsets(cl);
}
UpdateSamplerUniformBuffer(cl, source);
cl.SetFramebuffer(target.Framebuffer);
cl.SetVertexBuffer(0, _ndcQuadVertexBuffer.Buffer);
cl.SetPipeline(_pipeline);
cl.SetGraphicsResourceSet(0, source.ResourceSet_TexMirror);
cl.SetGraphicsResourceSet(1, _samplerFactorsUniformBlockResourceSet);
cl.SetGraphicsResourceSet(2, _weightsAndOffsetsResourceSet);
cl.Draw(6);
}