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comparison: gfx/angle/src/compiler/DetectDiscontinuity.h
gfx/angle/src/compiler/DetectDiscontinuity.h
- branch
- TOR_BUG_9701
- changeset 3
- 141e0f1194b1
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| -1:000000000000 | 0:7f8c5666057c |
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| 1 // | |
| 2 // Copyright (c) 2012 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 // Contains analysis utilities for dealing with HLSL's lack of support for | |
| 7 // the use of intrinsic functions which (implicitly or explicitly) compute | |
| 8 // gradients of functions with discontinuities. | |
| 9 // | |
| 10 | |
| 11 #ifndef COMPILER_DETECTDISCONTINUITY_H_ | |
| 12 #define COMPILER_DETECTDISCONTINUITY_H_ | |
| 13 | |
| 14 #include "compiler/intermediate.h" | |
| 15 | |
| 16 namespace sh | |
| 17 { | |
| 18 // Checks whether a loop can run for a variable number of iterations | |
| 19 class DetectLoopDiscontinuity : public TIntermTraverser | |
| 20 { | |
| 21 public: | |
| 22 bool traverse(TIntermNode *node); | |
| 23 | |
| 24 protected: | |
| 25 bool visitBranch(Visit visit, TIntermBranch *node); | |
| 26 bool visitLoop(Visit visit, TIntermLoop *loop); | |
| 27 bool visitAggregate(Visit visit, TIntermAggregate *node); | |
| 28 | |
| 29 int mLoopDepth; | |
| 30 bool mLoopDiscontinuity; | |
| 31 }; | |
| 32 | |
| 33 bool containsLoopDiscontinuity(TIntermNode *node); | |
| 34 | |
| 35 // Checks for intrinsic functions which compute gradients | |
| 36 class DetectGradientOperation : public TIntermTraverser | |
| 37 { | |
| 38 public: | |
| 39 bool traverse(TIntermNode *node); | |
| 40 | |
| 41 protected: | |
| 42 bool visitUnary(Visit visit, TIntermUnary *node); | |
| 43 bool visitAggregate(Visit visit, TIntermAggregate *node); | |
| 44 | |
| 45 bool mGradientOperation; | |
| 46 }; | |
| 47 | |
| 48 bool containsGradientOperation(TIntermNode *node); | |
| 49 | |
| 50 } | |
| 51 | |
| 52 #endif // COMPILER_DETECTDISCONTINUITY_H_ |
