kc3-lang/angle/src/libANGLE/renderer/d3d/d3d11/shaders/MultiplyAlpha.hlsl

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• Hash : 4f0e003e
  Author :
  Date : 2017-05-01T16:04:35
  

  Implement the new formats/features of the ES3 CHROMIUM_copy_texture.
  
  Some non-renderable texture formats remain unimplemented.
  
  BUG=angleproject:1932
  
  Change-Id: Id206432d6e26a70fc0e84478a4e43e9eefadcf2f
  Reviewed-on: https://chromium-review.googlesource.com/491948
  Commit-Queue: Geoff Lang <geofflang@chromium.org>
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  

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• src/libANGLE/renderer/d3d/d3d11/shaders/MultiplyAlpha.hlsl

• Texture2D<float4> TextureF  : register(t0);
  Texture2D<uint4>  TextureUI : register(t0);
  
  SamplerState Sampler        : register(s0);
  
  // Notation:
  // PM: premultiply, UM: unmulitply, PT: passthrough
  // F: float, U: uint
  
  // Float to float RGBA
  float4 PS_FtoF_PM_RGBA(in float4 inPosition : SV_POSITION, in float2 inTexCoord : TEXCOORD0) : SV_TARGET0
  {
      float4 color = TextureF.Sample(Sampler, inTexCoord).rgba;
      color.rgb *= color.a;
      return color;
  }
  
  float4 PS_FtoF_UM_RGBA(in float4 inPosition : SV_POSITION, in float2 inTexCoord : TEXCOORD0) : SV_TARGET0
  {
      float4 color = TextureF.Sample(Sampler, inTexCoord).rgba;
      if (color.a > 0.0f)
      {
          color.rgb /= color.a;
      }
      return color;
  }
  
  // Float to float RGB
  float4 PS_FtoF_PM_RGB(in float4 inPosition : SV_POSITION, in float2 inTexCoord : TEXCOORD0) : SV_TARGET0
  {
      float4 color = TextureF.Sample(Sampler, inTexCoord).rgba;
      color.rgb *= color.a;
      color.a = 1.0f;
      return color;
  }
  
  float4 PS_FtoF_UM_RGB(in float4 inPosition : SV_POSITION, in float2 inTexCoord : TEXCOORD0) : SV_TARGET0
  {
      float4 color = TextureF.Sample(Sampler, inTexCoord).rgba;
      if (color.a > 0.0f)
      {
          color.rgb /= color.a;
      }
      color.a = 1.0f;
      return color;
  }
  
  // Float to uint RGBA
  uint4 PS_FtoU_PT_RGBA(in float4 inPosition : SV_POSITION, in float2 inTexCoord : TEXCOORD0) : SV_TARGET0
  {
      float4 color = TextureF.Sample(Sampler, inTexCoord).rgba;
      return uint4(color * 255);
  }
  
  uint4 PS_FtoU_PM_RGBA(in float4 inPosition : SV_POSITION, in float2 inTexCoord : TEXCOORD0) : SV_TARGET0
  {
      float4 color = TextureF.Sample(Sampler, inTexCoord).rgba;
      color.rgb *= color.a;
      return uint4(color * 255);
  }
  
  uint4 PS_FtoU_UM_RGBA(in float4 inPosition : SV_POSITION, in float2 inTexCoord : TEXCOORD0) : SV_TARGET0
  {
      float4 color = TextureF.Sample(Sampler, inTexCoord).rgba;
      if (color.a > 0.0f)
      {
          color.rgb /= color.a;
      }
      return uint4(color * 255);
  }
  
  // Float to uint RGB
  uint4 PS_FtoU_PT_RGB(in float4 inPosition : SV_POSITION, in float2 inTexCoord : TEXCOORD0) : SV_TARGET0
  {
      float4 color = TextureF.Sample(Sampler, inTexCoord).rgba;
      return uint4(color.rgb * 255, 1);
  }
  
  uint4 PS_FtoU_PM_RGB(in float4 inPosition : SV_POSITION, in float2 inTexCoord : TEXCOORD0) : SV_TARGET0
  {
      float4 color = TextureF.Sample(Sampler, inTexCoord).rgba;
      color.rgb *= color.a;
      return uint4(color.rgb * 255, 1);
  }
  
  uint4 PS_FtoU_UM_RGB(in float4 inPosition : SV_POSITION, in float2 inTexCoord : TEXCOORD0) : SV_TARGET0
  {
      float4 color = TextureF.Sample(Sampler, inTexCoord).rgba;
      if (color.a > 0.0f)
      {
          color.rgb /= color.a;
      }
      return uint4(color.rgb * 255, 1);
  }
  

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