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Texture2D theTextureY : register(t0);
Texture2D theTextureU : register(t1);
Texture2D theTextureV : register(t2);
SamplerState theSampler = sampler_state
{
addressU = Clamp;
addressV = Clamp;
mipfilter = NONE;
minfilter = LINEAR;
magfilter = LINEAR;
};
struct PixelShaderInput
{
float4 pos : SV_POSITION;
float2 tex : TEXCOORD0;
float4 color : COLOR0;
};
cbuffer Constants : register(b0)
{
float4 Yoffset;
float4 Rcoeff;
float4 Gcoeff;
float4 Bcoeff;
};
float4 main(PixelShaderInput input) : SV_TARGET
{
float4 Output;
float3 yuv;
yuv.x = theTextureY.Sample(theSampler, input.tex).r;
yuv.y = theTextureU.Sample(theSampler, input.tex).r;
yuv.z = theTextureV.Sample(theSampler, input.tex).r;
yuv += Yoffset.xyz;
Output.r = dot(yuv, Rcoeff.xyz);
Output.g = dot(yuv, Gcoeff.xyz);
Output.b = dot(yuv, Bcoeff.xyz);
Output.a = 1.0f;
return Output * input.color;
}
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