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Add support for SPV_NV_sample_mask_override_coverage

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This commit is contained in:
chaoc
2016-12-19 16:29:34 -08:00
parent 7583ed73ef
commit 0ad6a4e60d
14 changed files with 215 additions and 1 deletions
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19
SPIRV/GlslangToSpv.cpp
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@@ -47,6 +47,9 @@ namespace spv {
#ifdef AMD_EXTENSIONS
#include "GLSL.ext.AMD.h"
#endif
#ifdef NV_EXTENSIONS
#include "GLSL.ext.NV.h"
#endif
}
// Glslang includes
@@ -436,6 +439,7 @@ spv::Decoration TranslateNoContractionDecoration(const glslang::TQualifier& qual
return spv::DecorationMax;
}
// Translate a glslang built-in variable to a SPIR-V built in decoration. Also generate
// associated capabilities when required. For some built-in variables, a capability
// is generated only when using the variable in an executable instruction, but not when
@@ -4721,6 +4725,21 @@ spv::Id TGlslangToSpvTraverser::getSymbolId(const glslang::TIntermSymbol* symbol
if (builtIn != spv::BuiltInMax)
addDecoration(id, spv::DecorationBuiltIn, (int)builtIn);
#ifdef NV_EXTENSIONS
if (builtIn == spv::BuiltInSampleMask) {
spv::Decoration decoration;
// GL_NV_sample_mask_override_coverage extension
if (glslangIntermediate->getLayoutOverrideCoverage())
decoration = (spv::Decoration)spv::OverrideCoverageNV;
else
decoration = (spv::Decoration)spv::DecorationMax;
addDecoration(id, decoration);
if (decoration != spv::DecorationMax) {
builder.addExtension(spv::E_SPV_NV_sample_mask_override_coverage);
}
}
#endif
return id;
}