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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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63
glslang/Include/intermediate.h
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@ -369,6 +369,8 @@ enum TOperator {
EOpImageAtomicExchange,
EOpImageAtomicCompSwap,
EOpSparseImageLoad,
EOpImageGuardEnd,
//
@ -398,6 +400,31 @@ enum TOperator {
EOpTextureGather,
EOpTextureGatherOffset,
EOpTextureGatherOffsets,
EOpTextureClamp,
EOpTextureOffsetClamp,
EOpTextureGradClamp,
EOpTextureGradOffsetClamp,
EOpSparseTextureGuardBegin,
EOpSparseTexture,
EOpSparseTextureLod,
EOpSparseTextureOffset,
EOpSparseTextureFetch,
EOpSparseTextureFetchOffset,
EOpSparseTextureLodOffset,
EOpSparseTextureGrad,
EOpSparseTextureGradOffset,
EOpSparseTextureGather,
EOpSparseTextureGatherOffset,
EOpSparseTextureGatherOffsets,
EOpSparseTexelsResident,
EOpSparseTextureClamp,
EOpSparseTextureOffsetClamp,
EOpSparseTextureGradClamp,
EOpSparseTextureGradOffsetClamp,
EOpSparseTextureGuardEnd,
EOpTextureGuardEnd,
@ -622,6 +649,7 @@ struct TCrackedTextureOp {
bool offsets;
bool gather;
bool grad;
bool lodClamp;
};
//
@ -637,6 +665,8 @@ public:
bool isConstructor() const;
bool isTexture() const { return op > EOpTextureGuardBegin && op < EOpTextureGuardEnd; }
bool isImage() const { return op > EOpImageGuardBegin && op < EOpImageGuardEnd; }
bool isSparseTexture() const { return op > EOpSparseTextureGuardBegin && op < EOpSparseTextureGuardEnd; }
bool isSparseImage() const { return op == EOpSparseImageLoad; }
// Crack the op into the individual dimensions of texturing operation.
void crackTexture(TSampler sampler, TCrackedTextureOp& cracked) const
@ -649,6 +679,7 @@ public:
cracked.offsets = false;
cracked.gather = false;
cracked.grad = false;
cracked.lodClamp = false;
switch (op) {
case EOpImageQuerySize:
@ -657,25 +688,40 @@ public:
case EOpTextureQueryLod:
case EOpTextureQueryLevels:
case EOpTextureQuerySamples:
case EOpSparseTexelsResident:
cracked.query = true;
break;
case EOpTexture:
case EOpSparseTexture:
break;
case EOpTextureClamp:
case EOpSparseTextureClamp:
cracked.lodClamp = true;
break;
case EOpTextureProj:
cracked.proj = true;
break;
case EOpTextureLod:
case EOpSparseTextureLod:
cracked.lod = true;
break;
case EOpTextureOffset:
case EOpSparseTextureOffset:
cracked.offset = true;
break;
case EOpTextureOffsetClamp:
case EOpSparseTextureOffsetClamp:
cracked.offset = true;
cracked.lodClamp = true;
break;
case EOpTextureFetch:
case EOpSparseTextureFetch:
cracked.fetch = true;
if (sampler.dim == Esd1D || (sampler.dim == Esd2D && ! sampler.ms) || sampler.dim == Esd3D)
cracked.lod = true;
break;
case EOpTextureFetchOffset:
case EOpSparseTextureFetchOffset:
cracked.fetch = true;
cracked.offset = true;
if (sampler.dim == Esd1D || (sampler.dim == Esd2D && ! sampler.ms) || sampler.dim == Esd3D)
@ -686,6 +732,7 @@ public:
cracked.proj = true;
break;
case EOpTextureLodOffset:
case EOpSparseTextureLodOffset:
cracked.offset = true;
cracked.lod = true;
break;
@ -699,9 +746,16 @@ public:
cracked.proj = true;
break;
case EOpTextureGrad:
case EOpSparseTextureGrad:
cracked.grad = true;
break;
case EOpTextureGradClamp:
case EOpSparseTextureGradClamp:
cracked.grad = true;
cracked.lodClamp = true;
break;
case EOpTextureGradOffset:
case EOpSparseTextureGradOffset:
cracked.grad = true;
cracked.offset = true;
break;
@ -714,14 +768,23 @@ public:
cracked.offset = true;
cracked.proj = true;
break;
case EOpTextureGradOffsetClamp:
case EOpSparseTextureGradOffsetClamp:
cracked.grad = true;
cracked.offset = true;
cracked.lodClamp = true;
break;
case EOpTextureGather:
case EOpSparseTextureGather:
cracked.gather = true;
break;
case EOpTextureGatherOffset:
case EOpSparseTextureGatherOffset:
cracked.gather = true;
cracked.offset = true;
break;
case EOpTextureGatherOffsets:
case EOpSparseTextureGatherOffsets:
cracked.gather = true;
cracked.offsets = true;
break;