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OpenGL: use shader 420pack if available to staticly bind ubo location

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Bindung locations after compiling a shader stalls the driver. So if we manage not to bind anything after compilation, the lag would be reduced much.
This commit is contained in:
degasus
2014-01-05 10:38:45 +01:00
parent 4fff5ac90d
commit c42f274e22
5 changed files with 8 additions and 4 deletions
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2
Source/Core/VideoCommon/PixelShaderGen.cpp
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@ -284,7 +284,7 @@ static inline void GeneratePixelShader(T& out, DSTALPHA_MODE dstAlphaMode, API_T
out.Write("\n");
if (g_ActiveConfig.backend_info.bSupportsGLSLUBO)
out.Write("layout(std140) uniform PSBlock {\n");
out.Write("layout(std140%s) uniform PSBlock {\n", g_ActiveConfig.backend_info.bSupportShadingLanguage420pack ? ", binding = 1" : "");
DeclareUniform(out, ApiType, g_ActiveConfig.backend_info.bSupportsGLSLUBO, C_COLORS, "float4", I_COLORS"[4]");
DeclareUniform(out, ApiType, g_ActiveConfig.backend_info.bSupportsGLSLUBO, C_KCOLORS, "float4", I_KCOLORS"[4]");

2
Source/Core/VideoCommon/VertexShaderGen.cpp
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@ -84,7 +84,7 @@ static inline void GenerateVertexShader(T& out, u32 components, API_TYPE api_typ
// uniforms
if (g_ActiveConfig.backend_info.bSupportsGLSLUBO)
out.Write("layout(std140) uniform VSBlock {\n");
out.Write("layout(std140%s) uniform VSBlock {\n", g_ActiveConfig.backend_info.bSupportShadingLanguage420pack ? ", binding = 2" : "");
DeclareUniform(out, api_type, g_ActiveConfig.backend_info.bSupportsGLSLUBO, C_POSNORMALMATRIX, "float4", I_POSNORMALMATRIX"[6]");
DeclareUniform(out, api_type, g_ActiveConfig.backend_info.bSupportsGLSLUBO, C_PROJECTION, "float4", I_PROJECTION"[4]");

1
Source/Core/VideoCommon/VideoConfig.h
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@ -155,6 +155,7 @@ struct VideoConfig
bool bSupportsOversizedViewports;
bool bSupportsGLSLUBO; // needed by PixelShaderGen, so must stay in VideoCommon
bool bSupportsEarlyZ; // needed by PixelShaderGen, so must stay in VideoCommon
bool bSupportShadingLanguage420pack; // needed by ShaderGen, so must stay in VideoCommon
} backend_info;
// Utility