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More preparation for pure built-in functions as enums: Add texturing op cracker.

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This commit is contained in:
John Kessenich 2015-08-19 10:46:52 -06:00
parent ef676b0a59
commit 81639827d5
2 changed files with 111 additions and 6 deletions
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113
glslang/Include/intermediate.h
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@ -350,8 +350,7 @@ enum TOperator {
// Image operations
//
// N.B. The following is not being used yet, pending input, as switching
// to it from the current text-based approach will break existing consumers.
EOpImageGuardBegin,
EOpImageQuerySize,
EOpImageQuerySamples,
@ -366,11 +365,14 @@ enum TOperator {
EOpImageAtomicExchange,
EOpImageAtomicCompSwap,
EOpImageGuardEnd,
//
// Texture operations
//
EOpTextureGuardBegin,
EOpTextureQuerySize,
EOpTextureQueryLod,
EOpTextureQueryLevels,
@ -392,6 +394,7 @@ enum TOperator {
EOpTextureGather,
EOpTextureGatherOffset,
EOpTextureGatherOffsets,
EOpTextureGuardEnd,
//
@ -605,6 +608,18 @@ protected:
bool literal; // true if node represents a literal in the source code
};
// Represent the independent aspects of a texturing TOperator
struct TCrackedTextureOp {
bool query;
bool proj;
bool lod;
bool fetch;
bool offset;
bool offsets;
bool gather;
bool grad;
};
//
// Intermediate class for node types that hold operators.
//
@ -613,9 +628,98 @@ public:
virtual TIntermOperator* getAsOperator() { return this; }
virtual const TIntermOperator* getAsOperator() const { return this; }
TOperator getOp() const { return op; }
virtual bool promote() { return true; }
bool modifiesState() const;
bool isConstructor() const;
virtual bool promote() { return true; }
bool isTexture() const { return op > EOpTextureGuardBegin && op < EOpTextureGuardEnd; }
bool isImage() const { return op > EOpImageGuardBegin && op < EOpImageGuardEnd; }
// Crack the op into the individual dimensions of texturing operation.
void crackTexture(TCrackedTextureOp& cracked) const
{
cracked.query = false;
cracked.proj = false;
cracked.lod = false;
cracked.fetch = false;
cracked.offset = false;
cracked.offsets = false;
cracked.gather = false;
cracked.grad = false;
switch (op) {
case EOpTextureQuerySize:
case EOpTextureQueryLod:
case EOpTextureQueryLevels:
case EOpTextureQuerySamples:
cracked.query = true;
break;
case EOpTexture:
break;
case EOpTextureProj:
cracked.proj = true;
break;
case EOpTextureLod:
cracked.lod = true;
break;
case EOpTextureOffset:
cracked.offset = true;
break;
case EOpTextureFetch:
cracked.fetch = true;
break;
case EOpTextureFetchOffset:
cracked.fetch = true;
cracked.offset = true;
break;
case EOpTextureProjOffset:
cracked.offset = true;
cracked.proj = true;
break;
case EOpTextureLodOffset:
cracked.offset = true;
cracked.lod = true;
break;
case EOpTextureProjLod:
cracked.lod = true;
cracked.proj = true;
break;
case EOpTextureProjLodOffset:
cracked.offset = true;
cracked.lod = true;
cracked.proj = true;
break;
case EOpTextureGrad:
cracked.grad = true;
break;
case EOpTextureGradOffset:
cracked.grad = true;
cracked.offset = true;
break;
case EOpTextureProjGrad:
cracked.grad = true;
cracked.proj = true;
break;
case EOpTextureProjGradOffset:
cracked.grad = true;
cracked.offset = true;
cracked.proj = true;
break;
case EOpTextureGather:
cracked.gather = true;
break;
case EOpTextureGatherOffset:
cracked.gather = true;
cracked.offset = true;
break;
case EOpTextureGatherOffsets:
cracked.gather = true;
cracked.offsets = true;
break;
default:
break;
}
}
protected:
TIntermOperator(TOperator o) : TIntermTyped(EbtFloat), op(o) {}
TIntermOperator(TOperator o, TType& t) : TIntermTyped(t), op(o) {}
@ -651,7 +755,8 @@ public:
TIntermUnary(TOperator o) : TIntermOperator(o), operand(0) {}
virtual void traverse(TIntermTraverser*);
virtual void setOperand(TIntermTyped* o) { operand = o; }
virtual TIntermTyped* getOperand() { return operand; }
virtual TIntermTyped* getOperand() { return operand; }
virtual const TIntermTyped* getOperand() const { return operand; }
virtual TIntermUnary* getAsUnaryNode() { return this; }
virtual const TIntermUnary* getAsUnaryNode() const { return this; }
virtual bool promote();

4
glslang/Include/revision.h
View File

@ -2,5 +2,5 @@
// For the version, it uses the latest git tag followed by the number of commits.
// For the date, it uses the current date (when then script is run).
#define GLSLANG_REVISION "2.3.725"
#define GLSLANG_DATE "18-Aug-2015"
#define GLSLANG_REVISION "2.3.726"
#define GLSLANG_DATE "19-Aug-2015"