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comparison: gfx/angle/src/compiler/ValidateLimitations.h
gfx/angle/src/compiler/ValidateLimitations.h
- branch
- TOR_BUG_9701
- changeset 3
- 141e0f1194b1
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| -1:000000000000 | 0:ea8a5098ce5b |
|---|---|
| 1 // | |
| 2 // Copyright (c) 2010 The ANGLE Project Authors. All rights reserved. | |
| 3 // Use of this source code is governed by a BSD-style license that can be | |
| 4 // found in the LICENSE file. | |
| 5 // | |
| 6 | |
| 7 #include "GLSLANG/ShaderLang.h" | |
| 8 #include "compiler/intermediate.h" | |
| 9 | |
| 10 class TInfoSinkBase; | |
| 11 | |
| 12 struct TLoopInfo { | |
| 13 struct TIndex { | |
| 14 int id; // symbol id. | |
| 15 } index; | |
| 16 TIntermLoop* loop; | |
| 17 }; | |
| 18 typedef TVector<TLoopInfo> TLoopStack; | |
| 19 | |
| 20 // Traverses intermediate tree to ensure that the shader does not exceed the | |
| 21 // minimum functionality mandated in GLSL 1.0 spec, Appendix A. | |
| 22 class ValidateLimitations : public TIntermTraverser { | |
| 23 public: | |
| 24 ValidateLimitations(ShShaderType shaderType, TInfoSinkBase& sink); | |
| 25 | |
| 26 int numErrors() const { return mNumErrors; } | |
| 27 | |
| 28 virtual bool visitBinary(Visit, TIntermBinary*); | |
| 29 virtual bool visitUnary(Visit, TIntermUnary*); | |
| 30 virtual bool visitAggregate(Visit, TIntermAggregate*); | |
| 31 virtual bool visitLoop(Visit, TIntermLoop*); | |
| 32 | |
| 33 private: | |
| 34 void error(TSourceLoc loc, const char *reason, const char* token); | |
| 35 | |
| 36 bool withinLoopBody() const; | |
| 37 bool isLoopIndex(const TIntermSymbol* symbol) const; | |
| 38 bool validateLoopType(TIntermLoop* node); | |
| 39 bool validateForLoopHeader(TIntermLoop* node, TLoopInfo* info); | |
| 40 bool validateForLoopInit(TIntermLoop* node, TLoopInfo* info); | |
| 41 bool validateForLoopCond(TIntermLoop* node, TLoopInfo* info); | |
| 42 bool validateForLoopExpr(TIntermLoop* node, TLoopInfo* info); | |
| 43 // Returns true if none of the loop indices is used as the argument to | |
| 44 // the given function out or inout parameter. | |
| 45 bool validateFunctionCall(TIntermAggregate* node); | |
| 46 bool validateOperation(TIntermOperator* node, TIntermNode* operand); | |
| 47 | |
| 48 // Returns true if indexing does not exceed the minimum functionality | |
| 49 // mandated in GLSL 1.0 spec, Appendix A, Section 5. | |
| 50 bool isConstExpr(TIntermNode* node); | |
| 51 bool isConstIndexExpr(TIntermNode* node); | |
| 52 bool validateIndexing(TIntermBinary* node); | |
| 53 | |
| 54 ShShaderType mShaderType; | |
| 55 TInfoSinkBase& mSink; | |
| 56 int mNumErrors; | |
| 57 TLoopStack mLoopStack; | |
| 58 }; | |
| 59 |
