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Use FP16 in the D3D11 shaders

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This commit is contained in:
Cameron Gutman 2022-02-08 21:43:25 -06:00
parent b96cb1abaf
commit b21131a466
6 changed files with 18 additions and 19 deletions
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app/shaders/d3d11_overlay_pixel.fxc
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8
app/shaders/d3d11_overlay_pixel.hlsl
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@ -1,13 +1,13 @@
Texture2D theTexture : register(t0); Texture2D<min16float4> theTexture : register(t0);
SamplerState theSampler : register(s0); SamplerState theSampler : register(s0);
struct ShaderInput struct ShaderInput
{ {
float4 pos : SV_POSITION; min16float4 pos : SV_POSITION;
float2 tex : TEXCOORD0; min16float2 tex : TEXCOORD0;
}; };
float4 main(ShaderInput input) : SV_TARGET min16float4 main(ShaderInput input) : SV_TARGET
{ {
return theTexture.Sample(theSampler, input.tex); return theTexture.Sample(theSampler, input.tex);
} }

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app/shaders/d3d11_vertex.fxc
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app/shaders/d3d11_vertex.hlsl
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@ -1,19 +1,19 @@
struct ShaderInput struct ShaderInput
{ {
float2 pos : POSITION; min16float2 pos : POSITION;
float2 tex : TEXCOORD0; min16float2 tex : TEXCOORD0;
}; };
struct ShaderOutput struct ShaderOutput
{ {
float4 pos : SV_POSITION; min16float4 pos : SV_POSITION;
float2 tex : TEXCOORD0; min16float2 tex : TEXCOORD0;
}; };
ShaderOutput main(ShaderInput input) ShaderOutput main(ShaderInput input)
{ {
ShaderOutput output; ShaderOutput output;
output.pos = float4(input.pos, 0.0f, 1.0f); output.pos = min16float4(input.pos, 0.0, 1.0);
output.tex = input.tex; output.tex = input.tex;
return output; return output;
} }

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app/shaders/d3d11_video_pixel.fxc
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19
app/shaders/d3d11_video_pixel.hlsl
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@ -1,24 +1,23 @@
Texture2D luminancePlane : register(t0); Texture2D<min16float> luminancePlane : register(t0);
Texture2D chrominancePlane : register(t1); Texture2D<min16float2> chrominancePlane : register(t1);
SamplerState theSampler : register(s0); SamplerState theSampler : register(s0);
cbuffer CSC_CONST_BUF : register(b0) cbuffer CSC_CONST_BUF : register(b0)
{ {
float3x3 cscMatrix; min16float3x3 cscMatrix;
float3 offsets; min16float3 offsets;
}; };
struct ShaderInput struct ShaderInput
{ {
float4 pos : SV_POSITION; min16float4 pos : SV_POSITION;
float2 tex : TEXCOORD0; min16float2 tex : TEXCOORD0;
}; };
min16float4 main(ShaderInput input) : SV_TARGET min16float4 main(ShaderInput input) : SV_TARGET
{ {
float y = luminancePlane.Sample(theSampler, input.tex); min16float3 yuv = min16float3(luminancePlane.Sample(theSampler, input.tex),
float2 uv = chrominancePlane.Sample(theSampler, input.tex); chrominancePlane.Sample(theSampler, input.tex));
float3 yuv = float3(y, uv);
// Subtract the YUV offset for limited vs full range // Subtract the YUV offset for limited vs full range
yuv -= offsets; yuv -= offsets;
@ -26,5 +25,5 @@ min16float4 main(ShaderInput input) : SV_TARGET
// Multiply by the conversion matrix for this colorspace // Multiply by the conversion matrix for this colorspace
yuv = mul(yuv, cscMatrix); yuv = mul(yuv, cscMatrix);
return min16float4(saturate(yuv), 1.0f); return min16float4(saturate(yuv), 1.0);
} }