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comparison: gfx/angle/src/third_party/compiler/ArrayBoundsClamper.h
gfx/angle/src/third_party/compiler/ArrayBoundsClamper.h
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| 1 /* | |
| 2 * Copyright (C) 2012 Apple Inc. All rights reserved. | |
| 3 * | |
| 4 * Redistribution and use in source and binary forms, with or without | |
| 5 * modification, are permitted provided that the following conditions | |
| 6 * are met: | |
| 7 * 1. Redistributions of source code must retain the above copyright | |
| 8 * notice, this list of conditions and the following disclaimer. | |
| 9 * 2. Redistributions in binary form must reproduce the above copyright | |
| 10 * notice, this list of conditions and the following disclaimer in the | |
| 11 * documentation and/or other materials provided with the distribution. | |
| 12 * | |
| 13 * THIS SOFTWARE IS PROVIDED BY APPLE, INC. ``AS IS'' AND ANY | |
| 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
| 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE, INC. OR | |
| 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | |
| 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
| 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
| 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | |
| 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 24 */ | |
| 25 | |
| 26 #ifndef THIRD_PARTY_COMPILER_ARRAY_BOUNDS_CLAMPER_H_ | |
| 27 #define THIRD_PARTY_COMPILER_ARRAY_BOUNDS_CLAMPER_H_ | |
| 28 | |
| 29 #include "GLSLANG/ShaderLang.h" | |
| 30 | |
| 31 #include "compiler/InfoSink.h" | |
| 32 #include "compiler/intermediate.h" | |
| 33 | |
| 34 class ArrayBoundsClamper { | |
| 35 public: | |
| 36 ArrayBoundsClamper(); | |
| 37 | |
| 38 // Must be set before compiling any shaders to ensure consistency | |
| 39 // between the translated shaders and any necessary prequel. | |
| 40 void SetClampingStrategy(ShArrayIndexClampingStrategy clampingStrategy); | |
| 41 | |
| 42 // Marks nodes in the tree that index arrays indirectly as | |
| 43 // requiring clamping. | |
| 44 void MarkIndirectArrayBoundsForClamping(TIntermNode* root); | |
| 45 | |
| 46 // If necessary, output array clamp function source into the shader source. | |
| 47 void OutputClampingFunctionDefinition(TInfoSinkBase& out) const; | |
| 48 | |
| 49 void Cleanup() | |
| 50 { | |
| 51 mArrayBoundsClampDefinitionNeeded = false; | |
| 52 } | |
| 53 | |
| 54 private: | |
| 55 bool GetArrayBoundsClampDefinitionNeeded() const { return mArrayBoundsClampDefinitionNeeded; } | |
| 56 void SetArrayBoundsClampDefinitionNeeded() { mArrayBoundsClampDefinitionNeeded = true; } | |
| 57 | |
| 58 ShArrayIndexClampingStrategy mClampingStrategy; | |
| 59 bool mArrayBoundsClampDefinitionNeeded; | |
| 60 }; | |
| 61 | |
| 62 #endif // THIRD_PARTY_COMPILER_ARRAY_BOUNDS_CLAMPER_H_ |
