glslang/MachineIndependent/Initialize.h

//
//Copyright (C) 2002-2005  3Dlabs Inc. Ltd.
//Copyright (C) 2013 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 3Dlabs Inc. Ltd. 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.
//

#ifndef _INITIALIZE_INCLUDED_
#define _INITIALIZE_INCLUDED_

#include "../Include/ResourceLimits.h"
#include "../Include/Common.h"
#include "../Include/ShHandle.h"
#include "SymbolTable.h"
#include "Versions.h"

namespace glslang {

//
// This is made to hold parseable strings for almost all the built-in
// functions and variables for one specific combination of version
// and profile.  (Some still need to be added programmatically.)
//
// The strings are organized by
//    commonBuiltins:  intersection of all stages' built-ins, processed just once
//    stageBuiltins[]: anything a stage needs that's not in commonBuiltins
//
class TBuiltIns {
public:
    POOL_ALLOCATOR_NEW_DELETE(GetThreadPoolAllocator())
    TBuiltIns();
    virtual ~TBuiltIns();
    void initialize(int version, EProfile);
	void initialize(const TBuiltInResource& resources, int version, EProfile, EShLanguage);
    const TString& getCommonString() const { return commonBuiltins; }
    const TString& getStageString(EShLanguage language) const { return stageBuiltins[language]; }

protected:
    void add2ndGenerationSamplingImaging(int version, EProfile profile);
    void addQueryFunctions(TSampler, TString& typeName, int version, EProfile profile);
    void addImageFunctions(TSampler, TString& typeName, int version, EProfile profile);
    void addSamplingFunctions(TSampler, TString& typeName, int version, EProfile profile);
    void addGatherFunctions(TSampler, TString& typeName, int version, EProfile profile);

    TString commonBuiltins;
    TString stageBuiltins[EShLangCount];

    // Helpers for making textual representations of the permutations
    // of texturing/imaging functions.
    const char* postfixes[5];
    const char* prefixes[EbtNumTypes];
    int dimMap[EsdNumDims];
};

void IdentifyBuiltIns(int version, EProfile profile, EShLanguage, TSymbolTable&);
void IdentifyBuiltIns(int version, EProfile profile, EShLanguage, TSymbolTable&, const TBuiltInResource &resources);

} // end namespace glslang

#endif // _INITIALIZE_INCLUDED_