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Parser & SPV: Implement two extensions regarding GLSL sparse texture.

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Implement extension "GL_ARB_sparse_texture2".
Implement extension "GL_ARB_sparse_texture_clamp".
This commit is contained in:
Rex Xu
2015-12-31 16:11:41 +08:00
parent e23c9849c2
commit 48edadfd24
12 changed files with 1621 additions and 151 deletions
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82
SPIRV/GlslangToSpv.cpp
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@@ -1884,6 +1884,14 @@ void TGlslangToSpvTraverser::handleFunctionEntry(const glslang::TIntermAggregate
void TGlslangToSpvTraverser::translateArguments(const glslang::TIntermAggregate& node, std::vector<spv::Id>& arguments)
{
const glslang::TIntermSequence& glslangArguments = node.getSequence();
glslang::TSampler sampler = {};
bool cubeCompare = false;
if (node.isTexture()) {
sampler = glslangArguments[0]->getAsTyped()->getType().getSampler();
cubeCompare = sampler.dim == glslang::EsdCube && sampler.arrayed && sampler.shadow;
}
for (int i = 0; i < (int)glslangArguments.size(); ++i) {
builder.clearAccessChain();
glslangArguments[i]->traverse(this);
@@ -1902,6 +1910,51 @@ void TGlslangToSpvTraverser::translateArguments(const glslang::TIntermAggregate&
if (i == 0)
lvalue = true;
break;
case glslang::EOpSparseTexture:
if ((cubeCompare && i == 3) || (! cubeCompare && i == 2))
lvalue = true;
break;
case glslang::EOpSparseTextureClamp:
if ((cubeCompare && i == 4) || (! cubeCompare && i == 3))
lvalue = true;
break;
case glslang::EOpSparseTextureLod:
case glslang::EOpSparseTextureOffset:
if (i == 3)
lvalue = true;
break;
case glslang::EOpSparseTextureFetch:
if ((sampler.dim != glslang::EsdRect && i == 3) || (sampler.dim == glslang::EsdRect && i == 2))
lvalue = true;
break;
case glslang::EOpSparseTextureFetchOffset:
if ((sampler.dim != glslang::EsdRect && i == 4) || (sampler.dim == glslang::EsdRect && i == 3))
lvalue = true;
break;
case glslang::EOpSparseTextureLodOffset:
case glslang::EOpSparseTextureGrad:
case glslang::EOpSparseTextureOffsetClamp:
if (i == 4)
lvalue = true;
break;
case glslang::EOpSparseTextureGradOffset:
case glslang::EOpSparseTextureGradClamp:
if (i == 5)
lvalue = true;
break;
case glslang::EOpSparseTextureGradOffsetClamp:
if (i == 6)
lvalue = true;
break;
case glslang::EOpSparseTextureGather:
if ((sampler.shadow && i == 3) || (! sampler.shadow && i == 2))
lvalue = true;
break;
case glslang::EOpSparseTextureGatherOffset:
case glslang::EOpSparseTextureGatherOffsets:
if ((sampler.shadow && i == 4) || (! sampler.shadow && i == 3))
lvalue = true;
break;
default:
break;
}
@@ -1963,6 +2016,8 @@ spv::Id TGlslangToSpvTraverser::createImageTextureFunctionCall(glslang::TIntermO
return builder.createTextureQueryCall(spv::OpImageQueryLod, params);
case glslang::EOpTextureQueryLevels:
return builder.createTextureQueryCall(spv::OpImageQueryLevels, params);
case glslang::EOpSparseTexelsResident:
return builder.createUnaryOp(spv::OpImageSparseTexelsResident, builder.makeBoolType(), arguments[0]);
default:
assert(0);
break;
@@ -1990,7 +2045,11 @@ spv::Id TGlslangToSpvTraverser::createImageTextureFunctionCall(glslang::TIntermO
operands.push_back(*opIt);
builder.createNoResultOp(spv::OpImageWrite, operands);
return spv::NoResult;
} else {
} else if (node->isSparseImage()) {
spv::MissingFunctionality("sparse image functions");
return spv::NoResult;
}
else {
// Process image atomic operations
// GLSL "IMAGE_PARAMS" will involve in constructing an image texel pointer and this pointer,
@@ -2010,7 +2069,7 @@ spv::Id TGlslangToSpvTraverser::createImageTextureFunctionCall(glslang::TIntermO
}
// Check for texture functions other than queries
bool sparse = node->isSparseTexture();
bool cubeCompare = sampler.dim == glslang::EsdCube && sampler.arrayed && sampler.shadow;
// check for bias argument
@@ -2021,6 +2080,10 @@ spv::Id TGlslangToSpvTraverser::createImageTextureFunctionCall(glslang::TIntermO
++nonBiasArgCount;
if (cracked.grad)
nonBiasArgCount += 2;
if (cracked.lodClamp)
++nonBiasArgCount;
if (sparse)
++nonBiasArgCount;
if ((int)arguments.size() > nonBiasArgCount)
bias = true;
@@ -2032,9 +2095,10 @@ spv::Id TGlslangToSpvTraverser::createImageTextureFunctionCall(glslang::TIntermO
int extraArgs = 0;
// sort out where Dref is coming from
if (sampler.shadow && sampler.dim == glslang::EsdCube && sampler.arrayed)
if (cubeCompare) {
params.Dref = arguments[2];
else if (sampler.shadow && cracked.gather) {
++extraArgs;
} else if (sampler.shadow && cracked.gather) {
params.Dref = arguments[2];
++extraArgs;
} else if (sampler.shadow) {
@@ -2066,6 +2130,14 @@ spv::Id TGlslangToSpvTraverser::createImageTextureFunctionCall(glslang::TIntermO
params.offsets = arguments[2 + extraArgs];
++extraArgs;
}
if (cracked.lodClamp) {
params.lodClamp = arguments[2 + extraArgs];
++extraArgs;
}
if (sparse) {
params.texelOut = arguments[2 + extraArgs];
++extraArgs;
}
if (bias) {
params.bias = arguments[2 + extraArgs];
++extraArgs;
@@ -2080,7 +2152,7 @@ spv::Id TGlslangToSpvTraverser::createImageTextureFunctionCall(glslang::TIntermO
}
}
return builder.createTextureCall(precision, convertGlslangToSpvType(node->getType()), cracked.fetch, cracked.proj, cracked.gather, params);
return builder.createTextureCall(precision, convertGlslangToSpvType(node->getType()), sparse, cracked.fetch, cracked.proj, cracked.gather, params);
}
spv::Id TGlslangToSpvTraverser::handleUserFunctionCall(const glslang::TIntermAggregate* node)