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Fix issue #1376: SPV_AMD_gpu_shader_half_float is not emitted under

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vulkan1.1

Interpolation functions, using 16-bit interpolants, should always emit
this extension string regardless of vulkan enviornment version.
This commit is contained in:
Rex Xu 2018-05-17 13:51:28 +08:00
parent 90de7a7495
commit b4a2a6cf94
1 changed files with 14 additions and 0 deletions
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14
SPIRV/GlslangToSpv.cpp
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@ -4630,6 +4630,10 @@ spv::Id TGlslangToSpvTraverser::createUnaryOperation(glslang::TOperator op, OpDe
unaryOp = spv::OpFwidthCoarse;
break;
case glslang::EOpInterpolateAtCentroid:
#ifdef AMD_EXTENSIONS
if (typeProxy == glslang::EbtFloat16)
builder.addExtension(spv::E_SPV_AMD_gpu_shader_half_float);
#endif
builder.addCapability(spv::CapabilityInterpolationFunction);
libCall = spv::GLSLstd450InterpolateAtCentroid;
break;
@ -6097,10 +6101,18 @@ spv::Id TGlslangToSpvTraverser::createMiscOperation(glslang::TOperator op, spv::
libCall = spv::GLSLstd450Refract;
break;
case glslang::EOpInterpolateAtSample:
#ifdef AMD_EXTENSIONS
if (typeProxy == glslang::EbtFloat16)
builder.addExtension(spv::E_SPV_AMD_gpu_shader_half_float);
#endif
builder.addCapability(spv::CapabilityInterpolationFunction);
libCall = spv::GLSLstd450InterpolateAtSample;
break;
case glslang::EOpInterpolateAtOffset:
#ifdef AMD_EXTENSIONS
if (typeProxy == glslang::EbtFloat16)
builder.addExtension(spv::E_SPV_AMD_gpu_shader_half_float);
#endif
builder.addCapability(spv::CapabilityInterpolationFunction);
libCall = spv::GLSLstd450InterpolateAtOffset;
break;
@ -6251,6 +6263,8 @@ spv::Id TGlslangToSpvTraverser::createMiscOperation(glslang::TOperator op, spv::
break;
case glslang::EOpInterpolateAtVertex:
if (typeProxy == glslang::EbtFloat16)
builder.addExtension(spv::E_SPV_AMD_gpu_shader_half_float);
extBuiltins = getExtBuiltins(spv::E_SPV_AMD_shader_explicit_vertex_parameter);
libCall = spv::InterpolateAtVertexAMD;
break;