protected override ITextureFilter CreateFilter(ITextureFilter input)
{
if (!Renderer.IsDx11Avail)
{
Renderer.FallbackOccurred = true; // Warn user via player stats OSD
return(input); // DX11 is not available; fallback
}
Func <TextureSize, TextureSize> transform = s => new TextureSize(2 * s.Height, s.Width);
var shaderPass1 = GetShader(Neurons1);
var shaderPass2 = GetShader(Neurons2);
var interleave = new Shader(FromFile("Interleave.hlsl"))
{
Transform = transform
};
if ((Renderer.TargetSize <= input.Size()).Any)
{
return(input);
}
var yuv = input.ConvertToYuv();
var composition = input.Decompose();
var resultY = interleave.ApplyTo(composition.Luma, shaderPass1.ApplyTo(yuv));
var luma = interleave.ApplyTo(resultY, shaderPass2.ApplyTo(resultY));
composition = luma.ComposeWith(composition.Chroma, chromaOffset: new Vector2(-0.25f, -0.25f));
var result = ChromaScaler.ScaleChroma(composition);
return(result.Convolve(null, offset: new Vector2(0.5f, 0.5f)));
}
protected override ITextureFilter CreateFilter(ITextureFilter input)
{
if (!Renderer.IsOpenClAvail || Renderer.RenderQuality.PerformanceMode())
{
Renderer.FallbackOccurred = true; // Warn user via player stats OSD
return(input); // OpenCL is not available, or UNORM8 textures used (not supported); fallback
}
Func <TextureSize, TextureSize> transformWidth = s => new TextureSize(2 * s.Width, s.Height);
Func <TextureSize, TextureSize> transformHeight = s => new TextureSize(s.Width, 2 * s.Height);
var neuronCount1 = s_NeuronCount[(int)Neurons1];
var neuronCount2 = s_NeuronCount[(int)Neurons2];
var weights1 = s_Weights[(int)Neurons1];
var buffer1 = Renderer.CreateClBuffer(weights1);
var buffer2 = buffer1;
var differentWeights = neuronCount1 != neuronCount2;
if (differentWeights)
{
var weights2 = s_Weights[(int)Neurons2];
buffer2 = Renderer.CreateClBuffer(weights2);
}
var kernel = GetKernel(); // Note Kernel is reused between different filters
var shaderH = new NNedi3Kernel(kernel)
{
Horizontal = true, Buffer = buffer1, NeuronCount = neuronCount1, Transform = transformWidth
};
var shaderV = new NNedi3Kernel(kernel)
{
Horizontal = false, Buffer = buffer2, NeuronCount = neuronCount2, Transform = transformHeight, ReloadWeights = differentWeights
};
var sourceSize = input.Size();
if ((Renderer.TargetSize <= sourceSize).Any)
{
return(input);
}
var composition = input.Decompose();
var nnedi3H = shaderH.ApplyTo(composition.Luma);
var nnedi3V = shaderV.ApplyTo(nnedi3H);
composition = nnedi3V.ComposeWith(composition.Chroma, chromaOffset: new Vector2(-0.25f, -0.25f));
var result = ChromaScaler.ScaleChroma(composition);
return(result.Convolve(null, offset: new Vector2(0.5f, 0.5f)));
}