gfx/angle/src/compiler/DetectDiscontinuity.h@141e0f1194b1 (annotated)
gfx/angle/src/compiler/DetectDiscontinuity.h
Wed, 31 Dec 2014 07:16:47 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 07:16:47 +0100
- branch
- TOR_BUG_9701
- changeset 3
- 141e0f1194b1
- permissions
- -rw-r--r--
Revert simplistic fix pending revisit of Mozilla integration attempt.
| michael@0 | 1 | // |
| michael@0 | 2 | // Copyright (c) 2012 The ANGLE Project Authors. All rights reserved. |
| michael@0 | 3 | // Use of this source code is governed by a BSD-style license that can be |
| michael@0 | 4 | // found in the LICENSE file. |
| michael@0 | 5 | // |
| michael@0 | 6 | // Contains analysis utilities for dealing with HLSL's lack of support for |
| michael@0 | 7 | // the use of intrinsic functions which (implicitly or explicitly) compute |
| michael@0 | 8 | // gradients of functions with discontinuities. |
| michael@0 | 9 | // |
| michael@0 | 10 | |
| michael@0 | 11 | #ifndef COMPILER_DETECTDISCONTINUITY_H_ |
| michael@0 | 12 | #define COMPILER_DETECTDISCONTINUITY_H_ |
| michael@0 | 13 | |
| michael@0 | 14 | #include "compiler/intermediate.h" |
| michael@0 | 15 | |
| michael@0 | 16 | namespace sh |
| michael@0 | 17 | { |
| michael@0 | 18 | // Checks whether a loop can run for a variable number of iterations |
| michael@0 | 19 | class DetectLoopDiscontinuity : public TIntermTraverser |
| michael@0 | 20 | { |
| michael@0 | 21 | public: |
| michael@0 | 22 | bool traverse(TIntermNode *node); |
| michael@0 | 23 | |
| michael@0 | 24 | protected: |
| michael@0 | 25 | bool visitBranch(Visit visit, TIntermBranch *node); |
| michael@0 | 26 | bool visitLoop(Visit visit, TIntermLoop *loop); |
| michael@0 | 27 | bool visitAggregate(Visit visit, TIntermAggregate *node); |
| michael@0 | 28 | |
| michael@0 | 29 | int mLoopDepth; |
| michael@0 | 30 | bool mLoopDiscontinuity; |
| michael@0 | 31 | }; |
| michael@0 | 32 | |
| michael@0 | 33 | bool containsLoopDiscontinuity(TIntermNode *node); |
| michael@0 | 34 | |
| michael@0 | 35 | // Checks for intrinsic functions which compute gradients |
| michael@0 | 36 | class DetectGradientOperation : public TIntermTraverser |
| michael@0 | 37 | { |
| michael@0 | 38 | public: |
| michael@0 | 39 | bool traverse(TIntermNode *node); |
| michael@0 | 40 | |
| michael@0 | 41 | protected: |
| michael@0 | 42 | bool visitUnary(Visit visit, TIntermUnary *node); |
| michael@0 | 43 | bool visitAggregate(Visit visit, TIntermAggregate *node); |
| michael@0 | 44 | |
| michael@0 | 45 | bool mGradientOperation; |
| michael@0 | 46 | }; |
| michael@0 | 47 | |
| michael@0 | 48 | bool containsGradientOperation(TIntermNode *node); |
| michael@0 | 49 | |
| michael@0 | 50 | } |
| michael@0 | 51 | |
| michael@0 | 52 | #endif // COMPILER_DETECTDISCONTINUITY_H_ |
