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Implement SPV_KHR_post_depth_coverage

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Added support for both extension GL_ARB_post_depth_coverage and GL_EXT_post_depth_coverage.
This commit is contained in:
chaoc 2017-06-30 17:14:30 -07:00
parent 994660208c
commit c120452754
20 changed files with 185 additions and 6 deletions
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8
glslang/MachineIndependent/linkValidate.cpp
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@ -101,6 +101,9 @@ void TIntermediate::merge(TInfoSink& infoSink, TIntermediate& unit)
if (! earlyFragmentTests)
earlyFragmentTests = unit.earlyFragmentTests;
if (!postDepthCoverage)
postDepthCoverage = unit.postDepthCoverage;
if (depthLayout == EldNone)
depthLayout = unit.depthLayout;
else if (depthLayout != unit.depthLayout)
@ -485,6 +488,11 @@ void TIntermediate::finalCheck(TInfoSink& infoSink, bool keepUncalled)
error(infoSink, "At least one shader must specify a layout(max_vertices = value)");
break;
case EShLangFragment:
// for GL_ARB_post_depth_coverage, EarlyFragmentTest is set automatically in
// ParseHelper.cpp. So if we reach here, this must be GL_EXT_post_depth_coverage
// requiring explicit early_fragment_tests
if (getPostDepthCoverage() && !getEarlyFragmentTests())
error(infoSink, "post_depth_coverage requires early_fragment_tests");
break;
case EShLangCompute:
break;