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Implement GL_OES_sample_variables.

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This commit is contained in:
John Kessenich 2015-08-16 21:55:59 -06:00
parent a39159a192
commit 556ab3ac96
5 changed files with 196 additions and 16 deletions
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50
glslang/MachineIndependent/Initialize.cpp
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@ -1766,6 +1766,7 @@ void TBuiltIns::initialize(int version, EProfile profile)
" in vec2 gl_SamplePosition;"
"flat in int gl_SampleMaskIn[];"
" out int gl_SampleMask[];"
"uniform int gl_NumSamples;"
);
if (version >= 430)
@ -1782,26 +1783,36 @@ void TBuiltIns::initialize(int version, EProfile profile)
} else {
// ES profile
if (version == 100)
if (version == 100) {
stageBuiltins[EShLangFragment].append(
"mediump vec4 gl_FragCoord;" // needs qualifier fixed later
" bool gl_FrontFacing;" // needs qualifier fixed later
"mediump vec4 gl_FragColor;" // needs qualifier fixed later
"mediump vec2 gl_PointCoord;" // needs qualifier fixed later
);
else if (version >= 300) {
}
if (version >= 300) {
stageBuiltins[EShLangFragment].append(
"highp vec4 gl_FragCoord;" // needs qualifier fixed later
" bool gl_FrontFacing;" // needs qualifier fixed later
"mediump vec2 gl_PointCoord;" // needs qualifier fixed later
"highp float gl_FragDepth;" // needs qualifier fixed later
);
if (version >= 310)
stageBuiltins[EShLangFragment].append(
"bool gl_HelperInvocation;" // needs qualifier fixed later
"flat in highp int gl_PrimitiveID;" // needs qualifier fixed later
"flat in highp int gl_Layer;" // needs qualifier fixed later
);
}
if (version >= 310) {
stageBuiltins[EShLangFragment].append(
"bool gl_HelperInvocation;" // needs qualifier fixed later
"flat in highp int gl_PrimitiveID;" // needs qualifier fixed later
"flat in highp int gl_Layer;" // needs qualifier fixed later
);
stageBuiltins[EShLangFragment].append( // GL_OES_sample_variables
"flat lowp in int gl_SampleID;"
" mediump in vec2 gl_SamplePosition;"
"flat highp in int gl_SampleMaskIn[];"
" highp out int gl_SampleMask[];"
"uniform lowp int gl_NumSamples;"
);
}
stageBuiltins[EShLangFragment].append(
"highp float gl_FragDepthEXT;" // GL_EXT_frag_depth
@ -2719,7 +2730,8 @@ void TBuiltIns::initialize(const TBuiltInResource &resources, int version, EProf
}
// GL_ARB_ES3_1_compatibility
if (profile != EEsProfile && version >= 450) {
if ((profile != EEsProfile && version >= 450) ||
(profile == EEsProfile && version >= 310)) {
snprintf(builtInConstant, maxSize, "const int gl_MaxSamples = %d;", resources.maxSamples);
s.append(builtInConstant);
}
@ -2935,10 +2947,22 @@ void IdentifyBuiltIns(int version, EProfile profile, EShLanguage language, TSymb
BuiltInVariable("gl_ClipDistance", EbvClipDistance, symbolTable);
BuiltInVariable("gl_CullDistance", EbvCullDistance, symbolTable);
BuiltInVariable("gl_PrimitiveID", EbvPrimitiveId, symbolTable);
BuiltInVariable("gl_SampleID", EbvSampleId, symbolTable);
BuiltInVariable("gl_SamplePosition", EbvSamplePosition, symbolTable);
BuiltInVariable("gl_SampleMaskIn", EbvSampleMask, symbolTable);
BuiltInVariable("gl_SampleMask", EbvSampleMask, symbolTable);
if ((profile != EEsProfile && version >= 400) ||
(profile == EEsProfile && version >= 310)) {
BuiltInVariable("gl_SampleID", EbvSampleId, symbolTable);
BuiltInVariable("gl_SamplePosition", EbvSamplePosition, symbolTable);
BuiltInVariable("gl_SampleMaskIn", EbvSampleMask, symbolTable);
BuiltInVariable("gl_SampleMask", EbvSampleMask, symbolTable);
if (profile == EEsProfile) {
symbolTable.setVariableExtensions("gl_SampleID", 1, &E_GL_OES_sample_variables);
symbolTable.setVariableExtensions("gl_SamplePosition", 1, &E_GL_OES_sample_variables);
symbolTable.setVariableExtensions("gl_SampleMaskIn", 1, &E_GL_OES_sample_variables);
symbolTable.setVariableExtensions("gl_SampleMask", 1, &E_GL_OES_sample_variables);
symbolTable.setVariableExtensions("gl_NumSamples", 1, &E_GL_OES_sample_variables);
}
}
BuiltInVariable("gl_Layer", EbvLayer, symbolTable);
BuiltInVariable("gl_ViewportIndex", EbvViewportIndex, symbolTable);