diff options
Diffstat (limited to 'chromium/third_party/glslang/src/hlsl/hlslOpMap.cpp')
| -rwxr-xr-x | chromium/third_party/glslang/src/hlsl/hlslOpMap.cpp | 171 |
1 files changed, 171 insertions, 0 deletions
diff --git a/chromium/third_party/glslang/src/hlsl/hlslOpMap.cpp b/chromium/third_party/glslang/src/hlsl/hlslOpMap.cpp new file mode 100755 index 00000000000..c31dd7cf73f --- /dev/null +++ b/chromium/third_party/glslang/src/hlsl/hlslOpMap.cpp @@ -0,0 +1,171 @@ +// +//Copyright (C) 2016 Google, 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: +// +// Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// +// 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. +// +// Neither the name of Google, Inc., nor the names of its +// contributors may be used to endorse or promote products derived +// from this software without specific prior written permission. +// +//THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +//"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 THE +//COPYRIGHT HOLDERS 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. +// + +// Map from physical token form (e.g. '-') to logical operator +// form (e.g., binary subtract or unary negate). + +#include "hlslOpMap.h" + +namespace glslang { + +// Map parsing tokens that could be assignments into assignment operators. +TOperator HlslOpMap::assignment(EHlslTokenClass op) +{ + switch (op) { + case EHTokAssign: return EOpAssign; + case EHTokMulAssign: return EOpMulAssign; + case EHTokDivAssign: return EOpDivAssign; + case EHTokAddAssign: return EOpAddAssign; + case EHTokModAssign: return EOpModAssign; + case EHTokLeftAssign: return EOpLeftShiftAssign; + case EHTokRightAssign: return EOpRightShiftAssign; + case EHTokAndAssign: return EOpAndAssign; + case EHTokXorAssign: return EOpExclusiveOrAssign; + case EHTokOrAssign: return EOpInclusiveOrAssign; + case EHTokSubAssign: return EOpSubAssign; + + default: + return EOpNull; + } +} + +// Map parsing tokens that could be binary operations into binary operators. +TOperator HlslOpMap::binary(EHlslTokenClass op) +{ + switch (op) { + case EHTokPlus: return EOpAdd; + case EHTokDash: return EOpSub; + case EHTokStar: return EOpMul; + case EHTokSlash: return EOpDiv; + case EHTokPercent: return EOpMod; + case EHTokRightOp: return EOpRightShift; + case EHTokLeftOp: return EOpLeftShift; + case EHTokAmpersand: return EOpAnd; + case EHTokVerticalBar: return EOpInclusiveOr; + case EHTokCaret: return EOpExclusiveOr; + case EHTokEqOp: return EOpEqual; + case EHTokNeOp: return EOpNotEqual; + case EHTokLeftAngle: return EOpLessThan; + case EHTokRightAngle: return EOpGreaterThan; + case EHTokLeOp: return EOpLessThanEqual; + case EHTokGeOp: return EOpGreaterThanEqual; + case EHTokOrOp: return EOpLogicalOr; + case EHTokXorOp: return EOpLogicalXor; + case EHTokAndOp: return EOpLogicalAnd; + + default: + return EOpNull; + } +} + +// Map parsing tokens that could be unary operations into unary operators. +// These are just the ones that can appear in front of its operand. +TOperator HlslOpMap::preUnary(EHlslTokenClass op) +{ + switch (op) { + case EHTokPlus: return EOpAdd; // means no-op, but still a unary op was present + case EHTokDash: return EOpNegative; + case EHTokBang: return EOpLogicalNot; + case EHTokTilde: return EOpBitwiseNot; + + case EHTokIncOp: return EOpPreIncrement; + case EHTokDecOp: return EOpPreDecrement; + + default: return EOpNull; // means not a pre-unary op + } +} + +// Map parsing tokens that could be unary operations into unary operators. +// These are just the ones that can appear behind its operand. +TOperator HlslOpMap::postUnary(EHlslTokenClass op) +{ + switch (op) { + case EHTokDot: return EOpIndexDirectStruct; + case EHTokLeftBracket: return EOpIndexIndirect; // may need to change later to EOpIndexDirect + + case EHTokIncOp: return EOpPostIncrement; + case EHTokDecOp: return EOpPostDecrement; + + default: return EOpNull; // means not a post-unary op + } +} + +// Map operators into their level of precedence. +PrecedenceLevel HlslOpMap::precedenceLevel(TOperator op) +{ + switch (op) { + case EOpLogicalOr: + return PlLogicalOr; + case EOpLogicalXor: + return PlLogicalXor; + case EOpLogicalAnd: + return PlLogicalAnd; + + case EOpInclusiveOr: + return PlBitwiseOr; + case EOpExclusiveOr: + return PlBitwiseXor; + case EOpAnd: + return PlBitwiseAnd; + + case EOpEqual: + case EOpNotEqual: + return PlEquality; + + case EOpLessThan: + case EOpGreaterThan: + case EOpLessThanEqual: + case EOpGreaterThanEqual: + return PlRelational; + + case EOpRightShift: + case EOpLeftShift: + return PlShift; + + case EOpAdd: + case EOpSub: + return PlAdd; + + case EOpMul: + case EOpDiv: + case EOpMod: + return PlMul; + + default: + return PlBad; + } +} + +} // end namespace glslang |