From 4faac3a6270c288dad57a59ee0f821512846ebfb Mon Sep 17 00:00:00 2001 From: Stenzek Date: Thu, 3 May 2018 14:09:32 +1000 Subject: TextureConversionShader: Don't sample from adjacent rows when not needed --- .../Core/VideoCommon/TextureConversionShader.cpp | 34 +++++++++++++++------- 1 file changed, 23 insertions(+), 11 deletions(-) (limited to 'Source/Core/VideoCommon/TextureConversionShader.cpp') diff --git a/Source/Core/VideoCommon/TextureConversionShader.cpp b/Source/Core/VideoCommon/TextureConversionShader.cpp index 2339558df1..a36f643693 100644 --- a/Source/Core/VideoCommon/TextureConversionShader.cpp +++ b/Source/Core/VideoCommon/TextureConversionShader.cpp @@ -180,21 +180,33 @@ static void WriteSampleFunction(char*& p, const EFBCopyParams& params, APIType A // The filter is only applied to the RGB channels, the alpha channel is left intact. WRITE(p, "float4 SampleEFB(float2 uv, float2 pixel_size, int xoffset)\n"); WRITE(p, "{\n"); - WRITE(p, " float4 prev_row = "); - WriteSampleOp(-1); - WRITE(p, ";\n"); - WRITE(p, " float4 current_row = "); - WriteSampleOp(0); - WRITE(p, ";\n"); - WRITE(p, " float4 next_row = "); - WriteSampleOp(1); - WRITE(p, ";\n"); - WRITE(p, + if (params.copy_filter) + { + WRITE(p, " float4 prev_row = "); + WriteSampleOp(-1); + WRITE(p, ";\n"); + WRITE(p, " float4 current_row = "); + WriteSampleOp(0); + WRITE(p, ";\n"); + WRITE(p, " float4 next_row = "); + WriteSampleOp(1); + WRITE(p, ";\n"); + WRITE( + p, " float3 col = float3(clamp((int3(prev_row.rgb * 255.0) * filter_coefficients[0] +\n" " int3(current_row.rgb * 255.0) * filter_coefficients[1] +\n" " int3(next_row.rgb * 255.0) * filter_coefficients[2]) >> 6,\n" " int3(0, 0, 0), int3(255, 255, 255))) / 255.0;\n"); - WRITE(p, " return float4(col, current_row.a);\n"); + WRITE(p, " return float4(col, current_row.a);\n"); + } + else + { + WRITE(p, " float4 current_row = "); + WriteSampleOp(0); + WRITE(p, ";\n"); + WRITE(p, " return float4(clamp(int3(current_row.rgb * 255.0) * filter_coefficients[1], " + "int3(0, 0, 0), int3(255, 255, 255)), current_row.a);\n"); + } WRITE(p, "}\n"); } -- cgit v1.2.3