1868b14435
This PR adds handling of the numthreads attribute for compute shaders, as well as a general infrastructure for returning attribute values from acceptAttributes, which may be needed in other cases, e.g, unroll(x), or merely to know if some attribute without params was given. A map of enum values from TAttributeType to TIntermAggregate nodes is built and returned. It can be queried with operator[] on the map. In the future there may be a need to also handle strings (e.g, for patchconstantfunc), and those can be easily added into the class if needed. New test is in hlsl.numthreads.comp.
109 lines
4.0 KiB
C++
109 lines
4.0 KiB
C++
//
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//Copyright (C) 2016 LunarG, 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 "hlslAttributes.h"
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#include <cstdlib>
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#include <cctype>
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namespace glslang {
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// Map the given string to an attribute enum from TAttributeType,
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// or EatNone if invalid.
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TAttributeType TAttributeMap::attributeFromName(const TString& name)
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{
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// These are case insensitive.
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TString lowername(name);
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std::transform(lowername.begin(), lowername.end(), lowername.begin(), ::tolower);
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if (lowername == "allow_uav_condition")
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return EatAllow_uav_condition;
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else if (lowername == "branch")
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return EatBranch;
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else if (lowername == "call")
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return EatCall;
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else if (lowername == "domain")
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return EatDomain;
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else if (lowername == "earlydepthstencil")
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return EatEarlydepthstencil;
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else if (lowername == "fastopt")
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return EatFastopt;
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else if (lowername == "flatten")
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return EatFlatten;
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else if (lowername == "forcecase")
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return EatForcecase;
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else if (lowername == "instance")
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return EatInstance;
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else if (lowername == "maxtessfactor")
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return EatMaxtessfactor;
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else if (lowername == "numthreads")
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return EatNumthreads;
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else if (lowername == "outputcontrolpoints")
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return EatOutputcontrolpoints;
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else if (lowername == "outputtopology")
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return EatOutputtopology;
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else if (lowername == "partitioning")
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return EatPartitioning;
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else if (lowername == "patchconstantfunc")
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return EatPatchconstantfunc;
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else if (lowername == "unroll")
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return EatUnroll;
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else
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return EatNone;
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}
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// Look up entry, inserting if it's not there, and if name is a valid attribute name
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// as known by attributeFromName.
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TAttributeType TAttributeMap::setAttribute(const TString* name, TIntermAggregate* value)
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{
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if (name == nullptr)
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return EatNone;
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const TAttributeType attr = attributeFromName(*name);
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if (attr != EatNone)
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attributes[attr] = value;
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return attr;
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}
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// Look up entry (const version), and return aggregate node. This cannot change the map.
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const TIntermAggregate* TAttributeMap::operator[](TAttributeType attr) const
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{
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const auto entry = attributes.find(attr);
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return (entry == attributes.end()) ? nullptr : entry->second;
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}
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} // end namespace glslang
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