mirror of https://github.com/mpv-player/mpv
45 lines
1.1 KiB
HLSL
45 lines
1.1 KiB
HLSL
// Compile with:
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// fxc.exe /Tps_2_0 /Fhd3d_shader_yuv.h d3d_shader_yuv.hlsl /Vnd3d_shader_yuv
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// fxc.exe /Tps_2_0 /Fhd3d_shader_yuv_2ch.h d3d_shader_yuv.hlsl /Vnd3d_shader_yuv_2ch /DUSE_2CH=1
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// Be careful with this shader. You can't use constant slots, since we don't
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// load the shader with D3DX. All uniform variables are mapped to hardcoded
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// constant slots.
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sampler2D tex0 : register(s0);
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sampler2D tex1 : register(s1);
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sampler2D tex2 : register(s2);
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uniform float4x4 colormatrix : register(c0);
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uniform float2 depth : register(c5);
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#ifdef USE_2CH
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float1 sample(sampler2D tex, float2 t)
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{
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// Sample from A8L8 format as if we sampled a single value from L16.
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// We compute the 2 channel values back into one.
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return dot(tex2D(tex, t).xw, depth);
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}
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#else
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float1 sample(sampler2D tex, float2 t)
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{
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return tex2D(tex, t).x;
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}
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#endif
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float4 main(float2 t0 : TEXCOORD0,
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float2 t1 : TEXCOORD1,
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float2 t2 : TEXCOORD2)
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: COLOR
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{
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float4 c = float4(sample(tex0, t0),
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sample(tex1, t1),
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sample(tex2, t2),
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1);
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return mul(c, colormatrix);
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}
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