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Diffstat (limited to 'Source/ThirdParty/ANGLE/src/compiler/ArrayBoundsClamper.h')
-rw-r--r-- | Source/ThirdParty/ANGLE/src/compiler/ArrayBoundsClamper.h | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/Source/ThirdParty/ANGLE/src/compiler/ArrayBoundsClamper.h b/Source/ThirdParty/ANGLE/src/compiler/ArrayBoundsClamper.h new file mode 100644 index 000000000..d4a8d6994 --- /dev/null +++ b/Source/ThirdParty/ANGLE/src/compiler/ArrayBoundsClamper.h @@ -0,0 +1,57 @@ +/* + * Copyright (C) 2012 Apple 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: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. 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. + * + * THIS SOFTWARE IS PROVIDED BY APPLE, INC. ``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 APPLE, INC. 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. + */ + +#ifndef COMPILER_ARRAY_BOUNDS_CLAMPER_H_ +#define COMPILER_ARRAY_BOUNDS_CLAMPER_H_ + +#include "GLSLANG/ShaderLang.h" + +#include "compiler/InfoSink.h" +#include "compiler/intermediate.h" + +class ArrayBoundsClamper { +public: + ArrayBoundsClamper(); + + // Output array clamp function source into the shader source. + void OutputClampingFunctionDefinition(TInfoSinkBase& out) const; + + // Marks nodes in the tree that index arrays indirectly as + // requiring clamping. + void MarkIndirectArrayBoundsForClamping(TIntermNode* root); + + void Cleanup() + { + mArrayBoundsClampDefinitionNeeded = false; + } + +private: + bool GetArrayBoundsClampDefinitionNeeded() const { return mArrayBoundsClampDefinitionNeeded; } + void SetArrayBoundsClampDefinitionNeeded() { mArrayBoundsClampDefinitionNeeded = true; } + + bool mArrayBoundsClampDefinitionNeeded; +}; + +#endif // COMPILER_ARRAY_BOUNDS_CLAMPER_H_ |