e18fd20d5c
- make it sharable with GLSL - correct the case insensitivity - remove the map; queries are not needed, all entries need processing - make it easier to build bottom up (will help GLSL parsing) - support semantic checking and reporting - allow front-end dependent semantics and attribute name mapping
86 lines
3.1 KiB
C++
86 lines
3.1 KiB
C++
//
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// Copyright (C) 2017 LunarG, Inc.
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// Copyright (C) 2018 Google, Inc.
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//
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions
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// are met:
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//
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// Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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//
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// Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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//
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// Neither the name of Google, Inc., nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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// COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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// BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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// ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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// POSSIBILITY OF SUCH DAMAGE.
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//
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#include "attribute.h"
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#include "../Include/intermediate.h"
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#include "ParseHelper.h"
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namespace glslang {
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// extract integers out of attribute arguments stored in attribute aggregate
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bool TAttributeArgs::getInt(int& value, int argNum) const
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{
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const TConstUnion* intConst = getConstUnion(EbtInt, argNum);
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if (intConst == nullptr)
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return false;
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value = intConst->getIConst();
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return true;
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};
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// extract strings out of attribute arguments stored in attribute aggregate.
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// convert to lower case if converToLower is true (for case-insensitive compare convenience)
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bool TAttributeArgs::getString(TString& value, int argNum, bool convertToLower) const
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{
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const TConstUnion* stringConst = getConstUnion(EbtString, argNum);
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if (stringConst == nullptr)
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return false;
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value = *stringConst->getSConst();
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// Convenience.
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if (convertToLower)
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std::transform(value.begin(), value.end(), value.begin(), ::tolower);
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return true;
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};
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// Helper to get attribute const union. Returns nullptr on failure.
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const TConstUnion* TAttributeArgs::getConstUnion(TBasicType basicType, int argNum) const
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{
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if (argNum >= args->getSequence().size())
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return nullptr;
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const TConstUnion* constVal = &args->getSequence()[argNum]->getAsConstantUnion()->getConstArray()[0];
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if (constVal == nullptr || constVal->getType() != basicType)
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return nullptr;
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return constVal;
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}
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} // end namespace glslang
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