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Merge pull request #4379 from Armada651/fix-dualsrc-check

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PixelShaderGen: Don't use dual source blend if unsupported.
This commit is contained in:
Markus Wick 2016-10-24 10:06:27 +02:00 committed by GitHub
commit 9877f87050
1 changed files with 22 additions and 11 deletions
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33
Source/Core/VideoCommon/PixelShaderGen.cpp
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@ -507,15 +507,22 @@ ShaderCode GeneratePixelShaderCode(APIType ApiType, const pixel_shader_uid_data*
if (ApiType == APIType::OpenGL || ApiType == APIType::Vulkan)
{
if (DriverDetails::HasBug(DriverDetails::BUG_BROKEN_FRAGMENT_SHADER_INDEX_DECORATION))
if (g_ActiveConfig.backend_info.bSupportsDualSourceBlend)
{
out.Write("FRAGMENT_OUTPUT_LOCATION(0) out vec4 ocol0;\n");
out.Write("FRAGMENT_OUTPUT_LOCATION(1) out vec4 ocol1;\n");
if (DriverDetails::HasBug(DriverDetails::BUG_BROKEN_FRAGMENT_SHADER_INDEX_DECORATION))
{
out.Write("FRAGMENT_OUTPUT_LOCATION(0) out vec4 ocol0;\n");
out.Write("FRAGMENT_OUTPUT_LOCATION(1) out vec4 ocol1;\n");
}
else
{
out.Write("FRAGMENT_OUTPUT_LOCATION_INDEXED(0, 0) out vec4 ocol0;\n");
out.Write("FRAGMENT_OUTPUT_LOCATION_INDEXED(0, 1) out vec4 ocol1;\n");
}
}
else
{
out.Write("FRAGMENT_OUTPUT_LOCATION_INDEXED(0, 0) out vec4 ocol0;\n");
out.Write("FRAGMENT_OUTPUT_LOCATION_INDEXED(0, 1) out vec4 ocol1;\n");
out.Write("FRAGMENT_OUTPUT_LOCATION(0) out vec4 ocol0;\n");
}
if (uid_data->per_pixel_depth)
@ -1200,7 +1207,7 @@ static void WriteAlphaTest(ShaderCode& out, const pixel_shader_uid_data* uid_dat
out.Write(")) {\n");
out.Write("\t\tocol0 = float4(0.0, 0.0, 0.0, 0.0);\n");
if (uid_data->dstAlphaMode == DSTALPHA_DUAL_SOURCE_BLEND)
if (g_ActiveConfig.backend_info.bSupportsDualSourceBlend)
out.Write("\t\tocol1 = float4(0.0, 0.0, 0.0, 0.0);\n");
if (per_pixel_depth)
{
@ -1297,7 +1304,8 @@ static void WriteColor(ShaderCode& out, const pixel_shader_uid_data* uid_data)
if (uid_data->dstAlphaMode == DSTALPHA_NONE)
{
out.Write("\tocol0.a = float(prev.a >> 2) / 63.0;\n");
out.Write("\tocol1.a = float(prev.a) / 255.0;\n");
if (g_ActiveConfig.backend_info.bSupportsDualSourceBlend)
out.Write("\tocol1.a = float(prev.a) / 255.0;\n");
}
else
{
@ -1305,9 +1313,12 @@ static void WriteColor(ShaderCode& out, const pixel_shader_uid_data* uid_data)
out.Write("\tocol0.a = float(" I_ALPHA ".a >> 2) / 63.0;\n");
// Use dual-source color blending to perform dst alpha in a single pass
if (uid_data->dstAlphaMode == DSTALPHA_DUAL_SOURCE_BLEND)
out.Write("\tocol1.a = float(prev.a) / 255.0;\n");
else
out.Write("\tocol1.a = float(" I_ALPHA ".a) / 255.0;\n");
if (g_ActiveConfig.backend_info.bSupportsDualSourceBlend)
{
if (uid_data->dstAlphaMode == DSTALPHA_DUAL_SOURCE_BLEND)
out.Write("\tocol1.a = float(prev.a) / 255.0;\n");
else
out.Write("\tocol1.a = float(" I_ALPHA ".a) / 255.0;\n");
}
}
}