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Diffstat (limited to 'chromium/third_party/glslang/src/glslang/Include/intermediate.h')
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diff --git a/chromium/third_party/glslang/src/glslang/Include/intermediate.h b/chromium/third_party/glslang/src/glslang/Include/intermediate.h new file mode 100644 index 00000000000..1759c867301 --- /dev/null +++ b/chromium/third_party/glslang/src/glslang/Include/intermediate.h @@ -0,0 +1,1090 @@ +// +//Copyright (C) 2002-2005 3Dlabs Inc. Ltd. +//Copyright (C) 2012-2016 LunarG, Inc. +// +//All rights reserved. +// +//Redistribution and use in source and binary forms, with or without +//modification, are permitted provided that the following conditions +//are met: +// +// Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// +// Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following +// disclaimer in the documentation and/or other materials provided +// with the distribution. +// +// Neither the name of 3Dlabs Inc. Ltd. nor the names of its +// contributors may be used to endorse or promote products derived +// from this software without specific prior written permission. +// +//THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +//"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +//LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS +//FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE +//COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, +//INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, +//BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; +//LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER +//CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +//LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN +//ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +//POSSIBILITY OF SUCH DAMAGE. +// + +// +// Definition of the in-memory high-level intermediate representation +// of shaders. This is a tree that parser creates. +// +// Nodes in the tree are defined as a hierarchy of classes derived from +// TIntermNode. Each is a node in a tree. There is no preset branching factor; +// each node can have it's own type of list of children. +// + +#ifndef __INTERMEDIATE_H +#define __INTERMEDIATE_H + +#include "../Include/Common.h" +#include "../Include/Types.h" +#include "../Include/ConstantUnion.h" + +namespace glslang { + +// +// Operators used by the high-level (parse tree) representation. +// +enum TOperator { + EOpNull, // if in a node, should only mean a node is still being built + EOpSequence, // denotes a list of statements, or parameters, etc. + EOpLinkerObjects, // for aggregate node of objects the linker may need, if not reference by the rest of the AST + EOpFunctionCall, + EOpFunction, // For function definition + EOpParameters, // an aggregate listing the parameters to a function + + // + // Unary operators + // + + EOpNegative, + EOpLogicalNot, + EOpVectorLogicalNot, + EOpBitwiseNot, + + EOpPostIncrement, + EOpPostDecrement, + EOpPreIncrement, + EOpPreDecrement, + + EOpConvIntToBool, + EOpConvUintToBool, + EOpConvFloatToBool, + EOpConvDoubleToBool, + EOpConvInt64ToBool, + EOpConvUint64ToBool, + EOpConvBoolToFloat, + EOpConvIntToFloat, + EOpConvUintToFloat, + EOpConvDoubleToFloat, + EOpConvInt64ToFloat, + EOpConvUint64ToFloat, + EOpConvUintToInt, + EOpConvFloatToInt, + EOpConvBoolToInt, + EOpConvDoubleToInt, + EOpConvInt64ToInt, + EOpConvUint64ToInt, + EOpConvIntToUint, + EOpConvFloatToUint, + EOpConvBoolToUint, + EOpConvDoubleToUint, + EOpConvInt64ToUint, + EOpConvUint64ToUint, + EOpConvIntToDouble, + EOpConvUintToDouble, + EOpConvFloatToDouble, + EOpConvBoolToDouble, + EOpConvInt64ToDouble, + EOpConvUint64ToDouble, + EOpConvBoolToInt64, + EOpConvIntToInt64, + EOpConvUintToInt64, + EOpConvFloatToInt64, + EOpConvDoubleToInt64, + EOpConvUint64ToInt64, + EOpConvBoolToUint64, + EOpConvIntToUint64, + EOpConvUintToUint64, + EOpConvFloatToUint64, + EOpConvDoubleToUint64, + EOpConvInt64ToUint64, + + // + // binary operations + // + + EOpAdd, + EOpSub, + EOpMul, + EOpDiv, + EOpMod, + EOpRightShift, + EOpLeftShift, + EOpAnd, + EOpInclusiveOr, + EOpExclusiveOr, + EOpEqual, + EOpNotEqual, + EOpVectorEqual, + EOpVectorNotEqual, + EOpLessThan, + EOpGreaterThan, + EOpLessThanEqual, + EOpGreaterThanEqual, + EOpComma, + + EOpVectorTimesScalar, + EOpVectorTimesMatrix, + EOpMatrixTimesVector, + EOpMatrixTimesScalar, + + EOpLogicalOr, + EOpLogicalXor, + EOpLogicalAnd, + + EOpIndexDirect, + EOpIndexIndirect, + EOpIndexDirectStruct, + + EOpVectorSwizzle, + + EOpMethod, + + // + // Built-in functions mapped to operators + // + + EOpRadians, + EOpDegrees, + EOpSin, + EOpCos, + EOpTan, + EOpAsin, + EOpAcos, + EOpAtan, + EOpSinh, + EOpCosh, + EOpTanh, + EOpAsinh, + EOpAcosh, + EOpAtanh, + + EOpPow, + EOpExp, + EOpLog, + EOpExp2, + EOpLog2, + EOpSqrt, + EOpInverseSqrt, + + EOpAbs, + EOpSign, + EOpFloor, + EOpTrunc, + EOpRound, + EOpRoundEven, + EOpCeil, + EOpFract, + EOpModf, + EOpMin, + EOpMax, + EOpClamp, + EOpMix, + EOpStep, + EOpSmoothStep, + + EOpIsNan, + EOpIsInf, + + EOpFma, + + EOpFrexp, + EOpLdexp, + + EOpFloatBitsToInt, + EOpFloatBitsToUint, + EOpIntBitsToFloat, + EOpUintBitsToFloat, + EOpDoubleBitsToInt64, + EOpDoubleBitsToUint64, + EOpInt64BitsToDouble, + EOpUint64BitsToDouble, + EOpPackSnorm2x16, + EOpUnpackSnorm2x16, + EOpPackUnorm2x16, + EOpUnpackUnorm2x16, + EOpPackSnorm4x8, + EOpUnpackSnorm4x8, + EOpPackUnorm4x8, + EOpUnpackUnorm4x8, + EOpPackHalf2x16, + EOpUnpackHalf2x16, + EOpPackDouble2x32, + EOpUnpackDouble2x32, + EOpPackInt2x32, + EOpUnpackInt2x32, + EOpPackUint2x32, + EOpUnpackUint2x32, + + EOpLength, + EOpDistance, + EOpDot, + EOpCross, + EOpNormalize, + EOpFaceForward, + EOpReflect, + EOpRefract, + + EOpDPdx, // Fragment only + EOpDPdy, // Fragment only + EOpFwidth, // Fragment only + EOpDPdxFine, // Fragment only + EOpDPdyFine, // Fragment only + EOpFwidthFine, // Fragment only + EOpDPdxCoarse, // Fragment only + EOpDPdyCoarse, // Fragment only + EOpFwidthCoarse, // Fragment only + + EOpInterpolateAtCentroid, // Fragment only + EOpInterpolateAtSample, // Fragment only + EOpInterpolateAtOffset, // Fragment only + + EOpMatrixTimesMatrix, + EOpOuterProduct, + EOpDeterminant, + EOpMatrixInverse, + EOpTranspose, + + EOpFtransform, + + EOpNoise, + + EOpEmitVertex, // geometry only + EOpEndPrimitive, // geometry only + EOpEmitStreamVertex, // geometry only + EOpEndStreamPrimitive, // geometry only + + EOpBarrier, + EOpMemoryBarrier, + EOpMemoryBarrierAtomicCounter, + EOpMemoryBarrierBuffer, + EOpMemoryBarrierImage, + EOpMemoryBarrierShared, // compute only + EOpGroupMemoryBarrier, // compute only + + EOpBallot, + EOpReadInvocation, + EOpReadFirstInvocation, + + EOpAnyInvocation, + EOpAllInvocations, + EOpAllInvocationsEqual, + + EOpAtomicAdd, + EOpAtomicMin, + EOpAtomicMax, + EOpAtomicAnd, + EOpAtomicOr, + EOpAtomicXor, + EOpAtomicExchange, + EOpAtomicCompSwap, + + EOpAtomicCounterIncrement, + EOpAtomicCounterDecrement, + EOpAtomicCounter, + + EOpAny, + EOpAll, + + // + // Branch + // + + EOpKill, // Fragment only + EOpReturn, + EOpBreak, + EOpContinue, + EOpCase, + EOpDefault, + + // + // Constructors + // + + EOpConstructGuardStart, + EOpConstructInt, // these first scalar forms also identify what implicit conversion is needed + EOpConstructUint, + EOpConstructInt64, + EOpConstructUint64, + EOpConstructBool, + EOpConstructFloat, + EOpConstructDouble, + EOpConstructVec2, + EOpConstructVec3, + EOpConstructVec4, + EOpConstructDVec2, + EOpConstructDVec3, + EOpConstructDVec4, + EOpConstructBVec2, + EOpConstructBVec3, + EOpConstructBVec4, + EOpConstructIVec2, + EOpConstructIVec3, + EOpConstructIVec4, + EOpConstructUVec2, + EOpConstructUVec3, + EOpConstructUVec4, + EOpConstructI64Vec2, + EOpConstructI64Vec3, + EOpConstructI64Vec4, + EOpConstructU64Vec2, + EOpConstructU64Vec3, + EOpConstructU64Vec4, + EOpConstructMat2x2, + EOpConstructMat2x3, + EOpConstructMat2x4, + EOpConstructMat3x2, + EOpConstructMat3x3, + EOpConstructMat3x4, + EOpConstructMat4x2, + EOpConstructMat4x3, + EOpConstructMat4x4, + EOpConstructDMat2x2, + EOpConstructDMat2x3, + EOpConstructDMat2x4, + EOpConstructDMat3x2, + EOpConstructDMat3x3, + EOpConstructDMat3x4, + EOpConstructDMat4x2, + EOpConstructDMat4x3, + EOpConstructDMat4x4, + EOpConstructStruct, + EOpConstructTextureSampler, + EOpConstructGuardEnd, + + // + // moves + // + + EOpAssign, + EOpAddAssign, + EOpSubAssign, + EOpMulAssign, + EOpVectorTimesMatrixAssign, + EOpVectorTimesScalarAssign, + EOpMatrixTimesScalarAssign, + EOpMatrixTimesMatrixAssign, + EOpDivAssign, + EOpModAssign, + EOpAndAssign, + EOpInclusiveOrAssign, + EOpExclusiveOrAssign, + EOpLeftShiftAssign, + EOpRightShiftAssign, + + // + // Array operators + // + + EOpArrayLength, // "Array" distinguishes from length(v) built-in function, but it applies to vectors and matrices as well. + + // + // Image operations + // + + EOpImageGuardBegin, + + EOpImageQuerySize, + EOpImageQuerySamples, + EOpImageLoad, + EOpImageStore, + EOpImageAtomicAdd, + EOpImageAtomicMin, + EOpImageAtomicMax, + EOpImageAtomicAnd, + EOpImageAtomicOr, + EOpImageAtomicXor, + EOpImageAtomicExchange, + EOpImageAtomicCompSwap, + + EOpSubpassLoad, + EOpSubpassLoadMS, + EOpSparseImageLoad, + + EOpImageGuardEnd, + + // + // Texture operations + // + + EOpTextureGuardBegin, + + EOpTextureQuerySize, + EOpTextureQueryLod, + EOpTextureQueryLevels, + EOpTextureQuerySamples, + EOpTexture, + EOpTextureProj, + EOpTextureLod, + EOpTextureOffset, + EOpTextureFetch, + EOpTextureFetchOffset, + EOpTextureProjOffset, + EOpTextureLodOffset, + EOpTextureProjLod, + EOpTextureProjLodOffset, + EOpTextureGrad, + EOpTextureGradOffset, + EOpTextureProjGrad, + EOpTextureProjGradOffset, + 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, + + // + // Integer operations + // + + EOpAddCarry, + EOpSubBorrow, + EOpUMulExtended, + EOpIMulExtended, + EOpBitfieldExtract, + EOpBitfieldInsert, + EOpBitFieldReverse, + EOpBitCount, + EOpFindLSB, + EOpFindMSB, + + // + // HLSL operations + // + + EOpClip, + EOpIsFinite, + EOpLog10, + EOpRcp, + EOpSaturate, + EOpSinCos, + EOpGenMul, // mul(x,y) on any of mat/vec/scalars + EOpDst, +}; + +class TIntermTraverser; +class TIntermOperator; +class TIntermAggregate; +class TIntermUnary; +class TIntermBinary; +class TIntermConstantUnion; +class TIntermSelection; +class TIntermSwitch; +class TIntermBranch; +class TIntermTyped; +class TIntermMethod; +class TIntermSymbol; + +} // end namespace glslang + +// +// Base class for the tree nodes +// +// (Put outside the glslang namespace, as it's used as part of the external interface.) +// +class TIntermNode { +public: + POOL_ALLOCATOR_NEW_DELETE(glslang::GetThreadPoolAllocator()) + + TIntermNode() { loc.init(); } + virtual const glslang::TSourceLoc& getLoc() const { return loc; } + virtual void setLoc(const glslang::TSourceLoc& l) { loc = l; } + virtual void traverse(glslang::TIntermTraverser*) = 0; + virtual glslang::TIntermTyped* getAsTyped() { return 0; } + virtual glslang::TIntermOperator* getAsOperator() { return 0; } + virtual glslang::TIntermConstantUnion* getAsConstantUnion() { return 0; } + virtual glslang::TIntermAggregate* getAsAggregate() { return 0; } + virtual glslang::TIntermUnary* getAsUnaryNode() { return 0; } + virtual glslang::TIntermBinary* getAsBinaryNode() { return 0; } + virtual glslang::TIntermSelection* getAsSelectionNode() { return 0; } + virtual glslang::TIntermSwitch* getAsSwitchNode() { return 0; } + virtual glslang::TIntermMethod* getAsMethodNode() { return 0; } + virtual glslang::TIntermSymbol* getAsSymbolNode() { return 0; } + virtual glslang::TIntermBranch* getAsBranchNode() { return 0; } + + virtual const glslang::TIntermTyped* getAsTyped() const { return 0; } + virtual const glslang::TIntermOperator* getAsOperator() const { return 0; } + virtual const glslang::TIntermConstantUnion* getAsConstantUnion() const { return 0; } + virtual const glslang::TIntermAggregate* getAsAggregate() const { return 0; } + virtual const glslang::TIntermUnary* getAsUnaryNode() const { return 0; } + virtual const glslang::TIntermBinary* getAsBinaryNode() const { return 0; } + virtual const glslang::TIntermSelection* getAsSelectionNode() const { return 0; } + virtual const glslang::TIntermSwitch* getAsSwitchNode() const { return 0; } + virtual const glslang::TIntermMethod* getAsMethodNode() const { return 0; } + virtual const glslang::TIntermSymbol* getAsSymbolNode() const { return 0; } + virtual const glslang::TIntermBranch* getAsBranchNode() const { return 0; } + virtual ~TIntermNode() { } +protected: + glslang::TSourceLoc loc; +}; + +namespace glslang { + +// +// This is just to help yacc. +// +struct TIntermNodePair { + TIntermNode* node1; + TIntermNode* node2; +}; + +// +// Intermediate class for nodes that have a type. +// +class TIntermTyped : public TIntermNode { +public: + TIntermTyped(const TType& t) { type.shallowCopy(t); } + TIntermTyped(TBasicType basicType) { TType bt(basicType); type.shallowCopy(bt); } + virtual TIntermTyped* getAsTyped() { return this; } + virtual const TIntermTyped* getAsTyped() const { return this; } + virtual void setType(const TType& t) { type.shallowCopy(t); } + virtual const TType& getType() const { return type; } + virtual TType& getWritableType() { return type; } + + virtual TBasicType getBasicType() const { return type.getBasicType(); } + virtual TQualifier& getQualifier() { return type.getQualifier(); } + virtual const TQualifier& getQualifier() const { return type.getQualifier(); } + virtual void propagatePrecision(TPrecisionQualifier); + virtual int getVectorSize() const { return type.getVectorSize(); } + virtual int getMatrixCols() const { return type.getMatrixCols(); } + virtual int getMatrixRows() const { return type.getMatrixRows(); } + virtual bool isMatrix() const { return type.isMatrix(); } + virtual bool isArray() const { return type.isArray(); } + virtual bool isVector() const { return type.isVector(); } + virtual bool isScalar() const { return type.isScalar(); } + virtual bool isStruct() const { return type.isStruct(); } + TString getCompleteString() const { return type.getCompleteString(); } + +protected: + TType type; +}; + +// +// Handle for, do-while, and while loops. +// +class TIntermLoop : public TIntermNode { +public: + TIntermLoop(TIntermNode* aBody, TIntermTyped* aTest, TIntermTyped* aTerminal, bool testFirst) : + body(aBody), + test(aTest), + terminal(aTerminal), + first(testFirst) { } + virtual void traverse(TIntermTraverser*); + TIntermNode* getBody() const { return body; } + TIntermTyped* getTest() const { return test; } + TIntermTyped* getTerminal() const { return terminal; } + bool testFirst() const { return first; } +protected: + TIntermNode* body; // code to loop over + TIntermTyped* test; // exit condition associated with loop, could be 0 for 'for' loops + TIntermTyped* terminal; // exists for for-loops + bool first; // true for while and for, not for do-while +}; + +// +// Handle case, break, continue, return, and kill. +// +class TIntermBranch : public TIntermNode { +public: + TIntermBranch(TOperator op, TIntermTyped* e) : + flowOp(op), + expression(e) { } + virtual TIntermBranch* getAsBranchNode() { return this; } + virtual const TIntermBranch* getAsBranchNode() const { return this; } + virtual void traverse(TIntermTraverser*); + TOperator getFlowOp() const { return flowOp; } + TIntermTyped* getExpression() const { return expression; } +protected: + TOperator flowOp; + TIntermTyped* expression; +}; + +// +// Represent method names before seeing their calling signature +// or resolving them to operations. Just an expression as the base object +// and a textural name. +// +class TIntermMethod : public TIntermTyped { +public: + TIntermMethod(TIntermTyped* o, const TType& t, const TString& m) : TIntermTyped(t), object(o), method(m) { } + virtual TIntermMethod* getAsMethodNode() { return this; } + virtual const TIntermMethod* getAsMethodNode() const { return this; } + virtual const TString& getMethodName() const { return method; } + virtual TIntermTyped* getObject() const { return object; } + virtual void traverse(TIntermTraverser*); +protected: + TIntermTyped* object; + TString method; +}; + +// +// Nodes that correspond to symbols or constants in the source code. +// +class TIntermSymbol : public TIntermTyped { +public: + // if symbol is initialized as symbol(sym), the memory comes from the pool allocator of sym. If sym comes from + // per process threadPoolAllocator, then it causes increased memory usage per compile + // it is essential to use "symbol = sym" to assign to symbol + TIntermSymbol(int i, const TString& n, const TType& t) + : TIntermTyped(t), id(i), constSubtree(nullptr) + { name = n; } + virtual int getId() const { return id; } + virtual const TString& getName() const { return name; } + virtual void traverse(TIntermTraverser*); + virtual TIntermSymbol* getAsSymbolNode() { return this; } + virtual const TIntermSymbol* getAsSymbolNode() const { return this; } + void setConstArray(const TConstUnionArray& c) { constArray = c; } + const TConstUnionArray& getConstArray() const { return constArray; } + void setConstSubtree(TIntermTyped* subtree) { constSubtree = subtree; } + TIntermTyped* getConstSubtree() const { return constSubtree; } +protected: + int id; // the unique id of the symbol this node represents + TString name; // the name of the symbol this node represents + TConstUnionArray constArray; // if the symbol is a front-end compile-time constant, this is its value + TIntermTyped* constSubtree; +}; + +class TIntermConstantUnion : public TIntermTyped { +public: + TIntermConstantUnion(const TConstUnionArray& ua, const TType& t) : TIntermTyped(t), constArray(ua), literal(false) { } + const TConstUnionArray& getConstArray() const { return constArray; } + virtual TIntermConstantUnion* getAsConstantUnion() { return this; } + virtual const TIntermConstantUnion* getAsConstantUnion() const { return this; } + virtual void traverse(TIntermTraverser*); + virtual TIntermTyped* fold(TOperator, const TIntermTyped*) const; + virtual TIntermTyped* fold(TOperator, const TType&) const; + void setLiteral() { literal = true; } + void setExpression() { literal = false; } + bool isLiteral() const { return literal; } +protected: + const TConstUnionArray constArray; + 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; + bool subpass; + bool lodClamp; +}; + +// +// Intermediate class for node types that hold operators. +// +class TIntermOperator : public TIntermTyped { +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; + 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 + { + cracked.query = false; + cracked.proj = false; + cracked.lod = false; + cracked.fetch = false; + cracked.offset = false; + cracked.offsets = false; + cracked.gather = false; + cracked.grad = false; + cracked.subpass = false; + cracked.lodClamp = false; + + switch (op) { + case EOpImageQuerySize: + case EOpImageQuerySamples: + case EOpTextureQuerySize: + 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) + cracked.lod = true; + break; + case EOpTextureProjOffset: + cracked.offset = true; + cracked.proj = true; + break; + case EOpTextureLodOffset: + case EOpSparseTextureLodOffset: + 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: + 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; + case EOpTextureProjGrad: + cracked.grad = true; + cracked.proj = true; + break; + case EOpTextureProjGradOffset: + cracked.grad = true; + 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; + case EOpSubpassLoad: + case EOpSubpassLoadMS: + cracked.subpass = true; + break; + default: + break; + } + } + +protected: + TIntermOperator(TOperator o) : TIntermTyped(EbtFloat), op(o) {} + TIntermOperator(TOperator o, TType& t) : TIntermTyped(t), op(o) {} + TOperator op; +}; + +// +// Nodes for all the basic binary math operators. +// +class TIntermBinary : public TIntermOperator { +public: + TIntermBinary(TOperator o) : TIntermOperator(o) {} + virtual void traverse(TIntermTraverser*); + virtual void setLeft(TIntermTyped* n) { left = n; } + virtual void setRight(TIntermTyped* n) { right = n; } + virtual TIntermTyped* getLeft() const { return left; } + virtual TIntermTyped* getRight() const { return right; } + virtual TIntermBinary* getAsBinaryNode() { return this; } + virtual const TIntermBinary* getAsBinaryNode() const { return this; } + virtual bool promote(); + virtual void updatePrecision(); +protected: + TIntermTyped* left; + TIntermTyped* right; +}; + +// +// Nodes for unary math operators. +// +class TIntermUnary : public TIntermOperator { +public: + TIntermUnary(TOperator o, TType& t) : TIntermOperator(o, t), operand(0) {} + TIntermUnary(TOperator o) : TIntermOperator(o), operand(0) {} + virtual void traverse(TIntermTraverser*); + virtual void setOperand(TIntermTyped* o) { operand = o; } + 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(); + virtual void updatePrecision(); +protected: + TIntermTyped* operand; +}; + +typedef TVector<TIntermNode*> TIntermSequence; +typedef TVector<int> TQualifierList; +// +// Nodes that operate on an arbitrary sized set of children. +// +class TIntermAggregate : public TIntermOperator { +public: + TIntermAggregate() : TIntermOperator(EOpNull), userDefined(false), pragmaTable(0) { } + TIntermAggregate(TOperator o) : TIntermOperator(o), pragmaTable(0) { } + ~TIntermAggregate() { delete pragmaTable; } + virtual TIntermAggregate* getAsAggregate() { return this; } + virtual const TIntermAggregate* getAsAggregate() const { return this; } + virtual void setOperator(TOperator o) { op = o; } + virtual TIntermSequence& getSequence() { return sequence; } + virtual const TIntermSequence& getSequence() const { return sequence; } + virtual void setName(const TString& n) { name = n; } + virtual const TString& getName() const { return name; } + virtual void traverse(TIntermTraverser*); + virtual void setUserDefined() { userDefined = true; } + virtual bool isUserDefined() { return userDefined; } + virtual TQualifierList& getQualifierList() { return qualifier; } + virtual const TQualifierList& getQualifierList() const { return qualifier; } + void setOptimize(bool o) { optimize = o; } + void setDebug(bool d) { debug = d; } + bool getOptimize() const { return optimize; } + bool getDebug() const { return debug; } + void addToPragmaTable(const TPragmaTable& pTable); + const TPragmaTable& getPragmaTable() const { return *pragmaTable; } +protected: + TIntermAggregate(const TIntermAggregate&); // disallow copy constructor + TIntermAggregate& operator=(const TIntermAggregate&); // disallow assignment operator + TIntermSequence sequence; + TQualifierList qualifier; + TString name; + bool userDefined; // used for user defined function names + bool optimize; + bool debug; + TPragmaTable* pragmaTable; +}; + +// +// For if tests. +// +class TIntermSelection : public TIntermTyped { +public: + TIntermSelection(TIntermTyped* cond, TIntermNode* trueB, TIntermNode* falseB) : + TIntermTyped(EbtVoid), condition(cond), trueBlock(trueB), falseBlock(falseB) {} + TIntermSelection(TIntermTyped* cond, TIntermNode* trueB, TIntermNode* falseB, const TType& type) : + TIntermTyped(type), condition(cond), trueBlock(trueB), falseBlock(falseB) {} + virtual void traverse(TIntermTraverser*); + virtual TIntermTyped* getCondition() const { return condition; } + virtual TIntermNode* getTrueBlock() const { return trueBlock; } + virtual TIntermNode* getFalseBlock() const { return falseBlock; } + virtual TIntermSelection* getAsSelectionNode() { return this; } + virtual const TIntermSelection* getAsSelectionNode() const { return this; } +protected: + TIntermTyped* condition; + TIntermNode* trueBlock; + TIntermNode* falseBlock; +}; + +// +// For switch statements. Designed use is that a switch will have sequence of nodes +// that are either case/default nodes or a *single* node that represents all the code +// in between (if any) consecutive case/defaults. So, a traversal need only deal with +// 0 or 1 nodes per case/default statement. +// +class TIntermSwitch : public TIntermNode { +public: + TIntermSwitch(TIntermTyped* cond, TIntermAggregate* b) : condition(cond), body(b) { } + virtual void traverse(TIntermTraverser*); + virtual TIntermNode* getCondition() const { return condition; } + virtual TIntermAggregate* getBody() const { return body; } + virtual TIntermSwitch* getAsSwitchNode() { return this; } + virtual const TIntermSwitch* getAsSwitchNode() const { return this; } +protected: + TIntermTyped* condition; + TIntermAggregate* body; +}; + +enum TVisit +{ + EvPreVisit, + EvInVisit, + EvPostVisit +}; + +// +// For traversing the tree. User should derive from this, +// put their traversal specific data in it, and then pass +// it to a Traverse method. +// +// When using this, just fill in the methods for nodes you want visited. +// Return false from a pre-visit to skip visiting that node's subtree. +// +// Explicitly set postVisit to true if you want post visiting, otherwise, +// filled in methods will only be called at pre-visit time (before processing +// the subtree). Similarly for inVisit for in-order visiting of nodes with +// multiple children. +// +// If you only want post-visits, explicitly turn off preVisit (and inVisit) +// and turn on postVisit. +// +// In general, for the visit*() methods, return true from interior nodes +// to have the traversal continue on to children. +// +// If you process children yourself, or don't want them processed, return false. +// +class TIntermTraverser { +public: + POOL_ALLOCATOR_NEW_DELETE(glslang::GetThreadPoolAllocator()) + TIntermTraverser(bool preVisit = true, bool inVisit = false, bool postVisit = false, bool rightToLeft = false) : + preVisit(preVisit), + inVisit(inVisit), + postVisit(postVisit), + rightToLeft(rightToLeft), + depth(0), + maxDepth(0) { } + virtual ~TIntermTraverser() { } + + virtual void visitSymbol(TIntermSymbol*) { } + virtual void visitConstantUnion(TIntermConstantUnion*) { } + virtual bool visitBinary(TVisit, TIntermBinary*) { return true; } + virtual bool visitUnary(TVisit, TIntermUnary*) { return true; } + virtual bool visitSelection(TVisit, TIntermSelection*) { return true; } + virtual bool visitAggregate(TVisit, TIntermAggregate*) { return true; } + virtual bool visitLoop(TVisit, TIntermLoop*) { return true; } + virtual bool visitBranch(TVisit, TIntermBranch*) { return true; } + virtual bool visitSwitch(TVisit, TIntermSwitch*) { return true; } + + int getMaxDepth() const { return maxDepth; } + + void incrementDepth(TIntermNode *current) + { + depth++; + maxDepth = (std::max)(maxDepth, depth); + path.push_back(current); + } + + void decrementDepth() + { + depth--; + path.pop_back(); + } + + TIntermNode *getParentNode() + { + return path.size() == 0 ? NULL : path.back(); + } + + const bool preVisit; + const bool inVisit; + const bool postVisit; + const bool rightToLeft; + +protected: + TIntermTraverser& operator=(TIntermTraverser&); + + int depth; + int maxDepth; + + // All the nodes from root to the current node's parent during traversing. + TVector<TIntermNode *> path; +}; + +// KHR_vulkan_glsl says "Two arrays sized with specialization constants are the same type only if +// sized with the same symbol, involving no operations" +inline bool SameSpecializationConstants(TIntermTyped* node1, TIntermTyped* node2) +{ + return node1->getAsSymbolNode() && node2->getAsSymbolNode() && + node1->getAsSymbolNode()->getId() == node2->getAsSymbolNode()->getId(); +} + +} // end namespace glslang + +#endif // __INTERMEDIATE_H |