glslang/hlsl/hlslAttributes.cpp
steve-lunarg f49cdf4183 WIP: HLSL: Add GS support
This PR adds:

[maxvertexcount(n)] attributes

point/line/triangle/lineadj/triangleadj qualifiers

PointStream/LineStream/TriangleStream templatized types

Append method on above template types

RestartStrip method on above template types.
2016-11-21 18:25:08 -07:00

111 lines
4.1 KiB
C++

//
//Copyright (C) 2016 LunarG, 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.
//
#include "hlslAttributes.h"
#include <cstdlib>
#include <cctype>
namespace glslang {
// Map the given string to an attribute enum from TAttributeType,
// or EatNone if invalid.
TAttributeType TAttributeMap::attributeFromName(const TString& name)
{
// These are case insensitive.
TString lowername(name);
std::transform(lowername.begin(), lowername.end(), lowername.begin(), ::tolower);
if (lowername == "allow_uav_condition")
return EatAllow_uav_condition;
else if (lowername == "branch")
return EatBranch;
else if (lowername == "call")
return EatCall;
else if (lowername == "domain")
return EatDomain;
else if (lowername == "earlydepthstencil")
return EatEarlyDepthStencil;
else if (lowername == "fastopt")
return EatFastOpt;
else if (lowername == "flatten")
return EatFlatten;
else if (lowername == "forcecase")
return EatForceCase;
else if (lowername == "instance")
return EatInstance;
else if (lowername == "maxtessfactor")
return EatMaxTessFactor;
else if (lowername == "maxvertexcount")
return EatMaxVertexCount;
else if (lowername == "numthreads")
return EatNumThreads;
else if (lowername == "outputcontrolpoints")
return EatOutputControlPoints;
else if (lowername == "outputtopology")
return EatOutputTopology;
else if (lowername == "partitioning")
return EatPartitioning;
else if (lowername == "patchconstantfunc")
return EatPatchConstantFunc;
else if (lowername == "unroll")
return EatUnroll;
else
return EatNone;
}
// Look up entry, inserting if it's not there, and if name is a valid attribute name
// as known by attributeFromName.
TAttributeType TAttributeMap::setAttribute(const TString* name, TIntermAggregate* value)
{
if (name == nullptr)
return EatNone;
const TAttributeType attr = attributeFromName(*name);
if (attr != EatNone)
attributes[attr] = value;
return attr;
}
// Look up entry (const version), and return aggregate node. This cannot change the map.
const TIntermAggregate* TAttributeMap::operator[](TAttributeType attr) const
{
const auto entry = attributes.find(attr);
return (entry == attributes.end()) ? nullptr : entry->second;
}
} // end namespace glslang