Implement GL_EXT_fragment_invocation_density
including SPV generation using SPV_EXT_fragment_invocation_density.
This is an alias of the functionality in SPV_NV_shading_rate, and thus in some
cases we can only have one set of the tokens present (switch statements), so
we have picked the EXT version. This required updating the expected test
results for SPV_NV_shading_rate.
Also updated the known-good for spirv-headers so that the validator in
spirv-tools knows about the new extension.
diff --git a/SPIRV/GlslangToSpv.cpp b/SPIRV/GlslangToSpv.cpp
index 2e2a2fe..5c00024 100755
--- a/SPIRV/GlslangToSpv.cpp
+++ b/SPIRV/GlslangToSpv.cpp
@@ -833,6 +833,16 @@
builder.addCapability(spv::CapabilityMultiView);
return spv::BuiltInViewIndex;
+ case glslang::EbvFragSizeEXT:
+ builder.addExtension(spv::E_SPV_EXT_fragment_invocation_density);
+ builder.addCapability(spv::CapabilityFragmentDensityEXT);
+ return spv::BuiltInFragSizeEXT;
+
+ case glslang::EbvFragInvocationCountEXT:
+ builder.addExtension(spv::E_SPV_EXT_fragment_invocation_density);
+ builder.addCapability(spv::CapabilityFragmentDensityEXT);
+ return spv::BuiltInFragInvocationCountEXT;
+
#ifdef NV_EXTENSIONS
case glslang::EbvViewportMaskNV:
if (!memberDeclaration) {