mewin/glslang
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

SPV: Fix issue #159: use ExplicitLod forms for non-fragment stages.

Browse Source
This commit is contained in:
John Kessenich
2016-02-15 15:40:42 -07:00
parent 5d0fa9781b
commit 019f08fcd8
5 changed files with 57 additions and 31 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
SPIRV/GlslangToSpv.cpp
View File

@@ -2236,6 +2236,7 @@ spv::Id TGlslangToSpvTraverser::createImageTextureFunctionCall(glslang::TIntermO
params.coords = arguments[1];
int extraArgs = 0;
bool noImplicitLod = false;
// sort out where Dref is coming from
if (cubeCompare) {
@@ -2257,7 +2258,11 @@ spv::Id TGlslangToSpvTraverser::createImageTextureFunctionCall(glslang::TIntermO
if (cracked.lod) {
params.lod = arguments[2];
++extraArgs;
} else if (sampler.ms) {
} else if (glslangIntermediate->getStage() != EShLangFragment) {
// we need to invent the default lod for an explicit lod instruction for a non-fragment stage
noImplicitLod = true;
}
if (sampler.ms) {
params.sample = arguments[2]; // For MS, "sample" should be specified
++extraArgs;
}
@@ -2295,7 +2300,7 @@ spv::Id TGlslangToSpvTraverser::createImageTextureFunctionCall(glslang::TIntermO
}
}
return builder.createTextureCall(precision, convertGlslangToSpvType(node->getType()), sparse, cracked.fetch, cracked.proj, cracked.gather, params);
return builder.createTextureCall(precision, convertGlslangToSpvType(node->getType()), sparse, cracked.fetch, cracked.proj, cracked.gather, noImplicitLod, params);
}
spv::Id TGlslangToSpvTraverser::handleUserFunctionCall(const glslang::TIntermAggregate* node)