src/compiler/translator/Initialize.cpp

//
// Copyright (c) 2002-2014 The ANGLE Project Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//

//
// Create symbols that declare built-in definitions, add built-ins that
// cannot be expressed in the files, and establish mappings between
// built-in functions and operators.
//

#include "compiler/translator/Initialize.h"
#include "compiler/translator/Cache.h"

#include "compiler/translator/IntermNode.h"
#include "angle_gl.h"

namespace sh
{

void InsertBuiltInFunctions(sh::GLenum type,
                            ShShaderSpec spec,
                            const ShBuiltInResources &resources,
                            TSymbolTable &symbolTable)
{
    const TType *voidType = TCache::getType(EbtVoid);
    const TType *float1   = TCache::getType(EbtFloat);
    const TType *float2   = TCache::getType(EbtFloat, 2);
    const TType *float3   = TCache::getType(EbtFloat, 3);
    const TType *float4   = TCache::getType(EbtFloat, 4);
    const TType *int1     = TCache::getType(EbtInt);
    const TType *int2     = TCache::getType(EbtInt, 2);
    const TType *int3     = TCache::getType(EbtInt, 3);
    const TType *uint1    = TCache::getType(EbtUInt);
    const TType *bool1    = TCache::getType(EbtBool);
    const TType *genType  = TCache::getType(EbtGenType);
    const TType *genIType = TCache::getType(EbtGenIType);
    const TType *genUType = TCache::getType(EbtGenUType);
    const TType *genBType = TCache::getType(EbtGenBType);

    //
    // Angle and Trigonometric Functions.
    //
    symbolTable.insertBuiltInOp(COMMON_BUILTINS, EOpRadians, genType, genType);
    symbolTable.insertBuiltInOp(COMMON_BUILTINS, EOpDegrees, genType, genType);
    symbolTable.insertBuiltInOp(COMMON_BUILTINS, EOpSin, genType, genType);
    symbolTable.insertBuiltInOp(COMMON_BUILTINS, EOpCos, genType, genType);
    symbolTable.insertBuiltInOp(COMMON_BUILTINS, EOpTan, genType, genType);
    symbolTable.insertBuiltInOp(COMMON_BUILTINS, EOpAsin, genType, genType);
    symbolTable.insertBuiltInOp(COMMON_BUILTINS, EOpAcos, genType, genType);
    symbolTable.insertBuiltInOp(COMMON_BUILTINS, EOpAtan, genType, genType, genType);
    symbolTable.insertBuiltInOp(COMMON_BUILTINS, EOpAtan, genType, genType);
    symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpSinh, genType, genType);
    symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpCosh, genType, genType);
    symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpTanh, genType, genType);
    symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpAsinh, genType, genType);
    symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpAcosh, genType, genType);
    symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpAtanh, genType, genType);

    //
    // Exponential Functions.
    //
    symbolTable.insertBuiltInOp(COMMON_BUILTINS, EOpPow, genType, genType, genType);
    symbolTable.insertBuiltInOp(COMMON_BUILTINS, EOpExp, genType, genType);
    symbolTable.insertBuiltInOp(COMMON_BUILTINS, EOpLog, genType, genType);
    symbolTable.insertBuiltInOp(COMMON_BUILTINS, EOpExp2, genType, genType);
    symbolTable.insertBuiltInOp(COMMON_BUILTINS, EOpLog2, genType, genType);
    symbolTable.insertBuiltInOp(COMMON_BUILTINS, EOpSqrt, genType, genType);
    symbolTable.insertBuiltInOp(COMMON_BUILTINS, EOpInverseSqrt, genType, genType);

    //
    // Common Functions.
    //
    symbolTable.insertBuiltInOp(COMMON_BUILTINS, EOpAbs, genType, genType);
    symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpAbs, genIType, genIType);
    symbolTable.insertBuiltInOp(COMMON_BUILTINS, EOpSign, genType, genType);
    symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpSign, genIType, genIType);
    symbolTable.insertBuiltInOp(COMMON_BUILTINS, EOpFloor, genType, genType);
    symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpTrunc, genType, genType);
    symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpRound, genType, genType);
    symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpRoundEven, genType, genType);
    symbolTable.insertBuiltInOp(COMMON_BUILTINS, EOpCeil, genType, genType);
    symbolTable.insertBuiltInOp(COMMON_BUILTINS, EOpFract, genType, genType);
    symbolTable.insertBuiltInOp(COMMON_BUILTINS, EOpMod, genType, genType, float1);
    symbolTable.insertBuiltInOp(COMMON_BUILTINS, EOpMod, genType, genType, genType);
    symbolTable.insertBuiltInOp(COMMON_BUILTINS, EOpMin, genType, genType, float1);
    symbolTable.insertBuiltInOp(COMMON_BUILTINS, EOpMin, genType, genType, genType);
    symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpMin, genIType, genIType, genIType);
    symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpMin, genIType, genIType, int1);
    symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpMin, genUType, genUType, genUType);
    symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpMin, genUType, genUType, uint1);
    symbolTable.insertBuiltInOp(COMMON_BUILTINS, EOpMax, genType, genType, float1);
    symbolTable.insertBuiltInOp(COMMON_BUILTINS, EOpMax, genType, genType, genType);
    symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpMax, genIType, genIType, genIType);
    symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpMax, genIType, genIType, int1);
    symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpMax, genUType, genUType, genUType);
    symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpMax, genUType, genUType, uint1);
    symbolTable.insertBuiltInOp(COMMON_BUILTINS, EOpClamp, genType, genType, float1, float1);
    symbolTable.insertBuiltInOp(COMMON_BUILTINS, EOpClamp, genType, genType, genType, genType);
    symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpClamp, genIType, genIType, int1, int1);
    symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpClamp, genIType, genIType, genIType, genIType);
    symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpClamp, genUType, genUType, uint1, uint1);
    symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpClamp, genUType, genUType, genUType, genUType);
    symbolTable.insertBuiltInOp(COMMON_BUILTINS, EOpMix, genType, genType, genType, float1);
    symbolTable.insertBuiltInOp(COMMON_BUILTINS, EOpMix, genType, genType, genType, genType);
    symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpMix, genType, genType, genType, genBType);
    symbolTable.insertBuiltInOp(COMMON_BUILTINS, EOpStep, genType, genType, genType);
    symbolTable.insertBuiltInOp(COMMON_BUILTINS, EOpStep, genType, float1, genType);
    symbolTable.insertBuiltInOp(COMMON_BUILTINS, EOpSmoothStep, genType, genType, genType, genType);
    symbolTable.insertBuiltInOp(COMMON_BUILTINS, EOpSmoothStep, genType, float1, float1, genType);

    const TType *outGenType = TCache::getType(EbtGenType, EvqOut);

    symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpModf, genType, genType, outGenType);

    symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpIsNan, genBType, genType);
    symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpIsInf, genBType, genType);
    symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpFloatBitsToInt, genIType, genType);
    symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpFloatBitsToUint, genUType, genType);
    symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpIntBitsToFloat, genType, genIType);
    symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpUintBitsToFloat, genType, genUType);

    symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpPackSnorm2x16, uint1, float2);
    symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpPackUnorm2x16, uint1, float2);
    symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpPackHalf2x16, uint1, float2);
    symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpUnpackSnorm2x16, float2, uint1);
    symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpUnpackUnorm2x16, float2, uint1);
    symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpUnpackHalf2x16, float2, uint1);

    symbolTable.insertBuiltInOp(ESSL3_1_BUILTINS, EOpPackUnorm4x8, uint1, float4);
    symbolTable.insertBuiltInOp(ESSL3_1_BUILTINS, EOpPackSnorm4x8, uint1, float4);
    symbolTable.insertBuiltInOp(ESSL3_1_BUILTINS, EOpUnpackUnorm4x8, float4, uint1);
    symbolTable.insertBuiltInOp(ESSL3_1_BUILTINS, EOpUnpackSnorm4x8, float4, uint1);

    //
    // Geometric Functions.
    //
    symbolTable.insertBuiltInOp(COMMON_BUILTINS, EOpLength, float1, genType);
    symbolTable.insertBuiltInOp(COMMON_BUILTINS, EOpDistance, float1, genType, genType);
    symbolTable.insertBuiltInOp(COMMON_BUILTINS, EOpDot, float1, genType, genType);
    symbolTable.insertBuiltInOp(COMMON_BUILTINS, EOpCross, float3, float3, float3);
    symbolTable.insertBuiltInOp(COMMON_BUILTINS, EOpNormalize, genType, genType);
    symbolTable.insertBuiltInOp(COMMON_BUILTINS, EOpFaceForward, genType, genType, genType,
                                genType);
    symbolTable.insertBuiltInOp(COMMON_BUILTINS, EOpReflect, genType, genType, genType);
    symbolTable.insertBuiltInOp(COMMON_BUILTINS, EOpRefract, genType, genType, genType, float1);

    const TType *mat2   = TCache::getType(EbtFloat, 2, 2);
    const TType *mat3   = TCache::getType(EbtFloat, 3, 3);
    const TType *mat4   = TCache::getType(EbtFloat, 4, 4);
    const TType *mat2x3 = TCache::getType(EbtFloat, 2, 3);
    const TType *mat3x2 = TCache::getType(EbtFloat, 3, 2);
    const TType *mat2x4 = TCache::getType(EbtFloat, 2, 4);
    const TType *mat4x2 = TCache::getType(EbtFloat, 4, 2);
    const TType *mat3x4 = TCache::getType(EbtFloat, 3, 4);
    const TType *mat4x3 = TCache::getType(EbtFloat, 4, 3);

    //
    // Matrix Functions.
    //
    symbolTable.insertBuiltInOp(COMMON_BUILTINS, EOpMulMatrixComponentWise, mat2, mat2, mat2);
    symbolTable.insertBuiltInOp(COMMON_BUILTINS, EOpMulMatrixComponentWise, mat3, mat3, mat3);
    symbolTable.insertBuiltInOp(COMMON_BUILTINS, EOpMulMatrixComponentWise, mat4, mat4, mat4);
    symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpMulMatrixComponentWise, mat2x3, mat2x3, mat2x3);
    symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpMulMatrixComponentWise, mat3x2, mat3x2, mat3x2);
    symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpMulMatrixComponentWise, mat2x4, mat2x4, mat2x4);
    symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpMulMatrixComponentWise, mat4x2, mat4x2, mat4x2);
    symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpMulMatrixComponentWise, mat3x4, mat3x4, mat3x4);
    symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpMulMatrixComponentWise, mat4x3, mat4x3, mat4x3);

    symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpOuterProduct, mat2, float2, float2);
    symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpOuterProduct, mat3, float3, float3);
    symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpOuterProduct, mat4, float4, float4);
    symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpOuterProduct, mat2x3, float3, float2);
    symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpOuterProduct, mat3x2, float2, float3);
    symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpOuterProduct, mat2x4, float4, float2);
    symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpOuterProduct, mat4x2, float2, float4);
    symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpOuterProduct, mat3x4, float4, float3);
    symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpOuterProduct, mat4x3, float3, float4);

    symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpTranspose, mat2, mat2);
    symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpTranspose, mat3, mat3);
    symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpTranspose, mat4, mat4);
    symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpTranspose, mat2x3, mat3x2);
    symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpTranspose, mat3x2, mat2x3);
    symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpTranspose, mat2x4, mat4x2);
    symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpTranspose, mat4x2, mat2x4);
    symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpTranspose, mat3x4, mat4x3);
    symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpTranspose, mat4x3, mat3x4);

    symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpDeterminant, float1, mat2);
    symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpDeterminant, float1, mat3);
    symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpDeterminant, float1, mat4);

    symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpInverse, mat2, mat2);
    symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpInverse, mat3, mat3);
    symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpInverse, mat4, mat4);

    const TType *vec  = TCache::getType(EbtVec);
    const TType *ivec = TCache::getType(EbtIVec);
    const TType *uvec = TCache::getType(EbtUVec);
    const TType *bvec = TCache::getType(EbtBVec);

    //
    // Vector relational functions.
    //
    symbolTable.insertBuiltInOp(COMMON_BUILTINS, EOpLessThanComponentWise, bvec, vec, vec);
    symbolTable.insertBuiltInOp(COMMON_BUILTINS, EOpLessThanComponentWise, bvec, ivec, ivec);
    symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpLessThanComponentWise, bvec, uvec, uvec);
    symbolTable.insertBuiltInOp(COMMON_BUILTINS, EOpLessThanEqualComponentWise, bvec, vec, vec);
    symbolTable.insertBuiltInOp(COMMON_BUILTINS, EOpLessThanEqualComponentWise, bvec, ivec, ivec);
    symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpLessThanEqualComponentWise, bvec, uvec, uvec);
    symbolTable.insertBuiltInOp(COMMON_BUILTINS, EOpGreaterThanComponentWise, bvec, vec, vec);
    symbolTable.insertBuiltInOp(COMMON_BUILTINS, EOpGreaterThanComponentWise, bvec, ivec, ivec);
    symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpGreaterThanComponentWise, bvec, uvec, uvec);
    symbolTable.insertBuiltInOp(COMMON_BUILTINS, EOpGreaterThanEqualComponentWise, bvec, vec, vec);
    symbolTable.insertBuiltInOp(COMMON_BUILTINS, EOpGreaterThanEqualComponentWise, bvec, ivec,
                                ivec);
    symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpGreaterThanEqualComponentWise, bvec, uvec, uvec);
    symbolTable.insertBuiltInOp(COMMON_BUILTINS, EOpEqualComponentWise, bvec, vec, vec);
    symbolTable.insertBuiltInOp(COMMON_BUILTINS, EOpEqualComponentWise, bvec, ivec, ivec);
    symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpEqualComponentWise, bvec, uvec, uvec);
    symbolTable.insertBuiltInOp(COMMON_BUILTINS, EOpEqualComponentWise, bvec, bvec, bvec);
    symbolTable.insertBuiltInOp(COMMON_BUILTINS, EOpNotEqualComponentWise, bvec, vec, vec);
    symbolTable.insertBuiltInOp(COMMON_BUILTINS, EOpNotEqualComponentWise, bvec, ivec, ivec);
    symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpNotEqualComponentWise, bvec, uvec, uvec);
    symbolTable.insertBuiltInOp(COMMON_BUILTINS, EOpNotEqualComponentWise, bvec, bvec, bvec);
    symbolTable.insertBuiltInOp(COMMON_BUILTINS, EOpAny, bool1, bvec);
    symbolTable.insertBuiltInOp(COMMON_BUILTINS, EOpAll, bool1, bvec);
    symbolTable.insertBuiltInOp(COMMON_BUILTINS, EOpLogicalNotComponentWise, bvec, bvec);

    //
    // Integer functions
    //
    const TType *outGenUType = TCache::getType(EbtGenUType, EvqOut);
    const TType *outGenIType = TCache::getType(EbtGenIType, EvqOut);

    symbolTable.insertBuiltInOp(ESSL3_1_BUILTINS, EOpBitfieldExtract, genIType, genIType, int1,
                                int1);
    symbolTable.insertBuiltInOp(ESSL3_1_BUILTINS, EOpBitfieldExtract, genUType, genUType, int1,
                                int1);
    symbolTable.insertBuiltInOp(ESSL3_1_BUILTINS, EOpBitfieldInsert, genIType, genIType, genIType,
                                int1, int1);
    symbolTable.insertBuiltInOp(ESSL3_1_BUILTINS, EOpBitfieldInsert, genUType, genUType, genUType,
                                int1, int1);
    symbolTable.insertBuiltInOp(ESSL3_1_BUILTINS, EOpBitfieldReverse, genIType, genIType);
    symbolTable.insertBuiltInOp(ESSL3_1_BUILTINS, EOpBitfieldReverse, genUType, genUType);
    symbolTable.insertBuiltInOp(ESSL3_1_BUILTINS, EOpBitCount, genIType, genIType);
    symbolTable.insertBuiltInOp(ESSL3_1_BUILTINS, EOpBitCount, genIType, genUType);
    symbolTable.insertBuiltInOp(ESSL3_1_BUILTINS, EOpFindLSB, genIType, genIType);
    symbolTable.insertBuiltInOp(ESSL3_1_BUILTINS, EOpFindLSB, genIType, genUType);
    symbolTable.insertBuiltInOp(ESSL3_1_BUILTINS, EOpFindMSB, genIType, genIType);
    symbolTable.insertBuiltInOp(ESSL3_1_BUILTINS, EOpFindMSB, genIType, genUType);
    symbolTable.insertBuiltInOp(ESSL3_1_BUILTINS, EOpUaddCarry, genUType, genUType, genUType,
                                outGenUType);
    symbolTable.insertBuiltInOp(ESSL3_1_BUILTINS, EOpUsubBorrow, genUType, genUType, genUType,
                                outGenUType);
    symbolTable.insertBuiltInOp(ESSL3_1_BUILTINS, EOpUmulExtended, voidType, genUType, genUType,
                                outGenUType, outGenUType);
    symbolTable.insertBuiltInOp(ESSL3_1_BUILTINS, EOpImulExtended, voidType, genIType, genIType,
                                outGenIType, outGenIType);

    const TType *sampler2D   = TCache::getType(EbtSampler2D);
    const TType *samplerCube = TCache::getType(EbtSamplerCube);

    //
    // Texture Functions for GLSL ES 1.0
    //
    symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2D", sampler2D, float2);
    symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2DProj", sampler2D, float3);
    symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2DProj", sampler2D, float4);
    symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "textureCube", samplerCube, float3);

    if (resources.OES_EGL_image_external || resources.NV_EGL_stream_consumer_external)
    {
        const TType *samplerExternalOES = TCache::getType(EbtSamplerExternalOES);

        symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2D", samplerExternalOES, float2);
        symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2DProj", samplerExternalOES,
                                  float3);
        symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2DProj", samplerExternalOES,
                                  float4);
    }

    if (resources.ARB_texture_rectangle)
    {
        const TType *sampler2DRect = TCache::getType(EbtSampler2DRect);

        symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2DRect", sampler2DRect, float2);
        symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2DRectProj", sampler2DRect,
                                  float3);
        symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2DRectProj", sampler2DRect,
                                  float4);
    }

    if (resources.EXT_shader_texture_lod)
    {
        /* The *Grad* variants are new to both vertex and fragment shaders; the fragment
         * shader specific pieces are added separately below.
         */
        symbolTable.insertBuiltIn(ESSL1_BUILTINS, "GL_EXT_shader_texture_lod", float4,
                                  "texture2DGradEXT", sampler2D, float2, float2, float2);
        symbolTable.insertBuiltIn(ESSL1_BUILTINS, "GL_EXT_shader_texture_lod", float4,
                                  "texture2DProjGradEXT", sampler2D, float3, float2, float2);
        symbolTable.insertBuiltIn(ESSL1_BUILTINS, "GL_EXT_shader_texture_lod", float4,
                                  "texture2DProjGradEXT", sampler2D, float4, float2, float2);
        symbolTable.insertBuiltIn(ESSL1_BUILTINS, "GL_EXT_shader_texture_lod", float4,
                                  "textureCubeGradEXT", samplerCube, float3, float3, float3);
    }

    if (type == GL_FRAGMENT_SHADER)
    {
        symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2D", sampler2D, float2, float1);
        symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2DProj", sampler2D, float3,
                                  float1);
        symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2DProj", sampler2D, float4,
                                  float1);
        symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "textureCube", samplerCube, float3,
                                  float1);

        if (resources.OES_standard_derivatives)
        {
            symbolTable.insertBuiltInOp(ESSL1_BUILTINS, EOpDFdx, "GL_OES_standard_derivatives",
                                        genType, genType);
            symbolTable.insertBuiltInOp(ESSL1_BUILTINS, EOpDFdy, "GL_OES_standard_derivatives",
                                        genType, genType);
            symbolTable.insertBuiltInOp(ESSL1_BUILTINS, EOpFwidth, "GL_OES_standard_derivatives",
                                        genType, genType);
        }

        if (resources.EXT_shader_texture_lod)
        {
            symbolTable.insertBuiltIn(ESSL1_BUILTINS, "GL_EXT_shader_texture_lod", float4,
                                      "texture2DLodEXT", sampler2D, float2, float1);
            symbolTable.insertBuiltIn(ESSL1_BUILTINS, "GL_EXT_shader_texture_lod", float4,
                                      "texture2DProjLodEXT", sampler2D, float3, float1);
            symbolTable.insertBuiltIn(ESSL1_BUILTINS, "GL_EXT_shader_texture_lod", float4,
                                      "texture2DProjLodEXT", sampler2D, float4, float1);
            symbolTable.insertBuiltIn(ESSL1_BUILTINS, "GL_EXT_shader_texture_lod", float4,
                                      "textureCubeLodEXT", samplerCube, float3, float1);
        }
    }

    if (type == GL_VERTEX_SHADER)
    {
        symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2DLod", sampler2D, float2,
                                  float1);
        symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2DProjLod", sampler2D, float3,
                                  float1);
        symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2DProjLod", sampler2D, float4,
                                  float1);
        symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "textureCubeLod", samplerCube, float3,
                                  float1);
    }

    const TType *gvec4 = TCache::getType(EbtGVec4);

    const TType *gsampler2D      = TCache::getType(EbtGSampler2D);
    const TType *gsamplerCube    = TCache::getType(EbtGSamplerCube);
    const TType *gsampler3D      = TCache::getType(EbtGSampler3D);
    const TType *gsampler2DArray = TCache::getType(EbtGSampler2DArray);
    const TType *gsampler2DMS    = TCache::getType(EbtGSampler2DMS);

    //
    // Texture Functions for GLSL ES 3.0
    //
    symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "texture", gsampler2D, float2);
    symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "texture", gsampler3D, float3);
    symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "texture", gsamplerCube, float3);
    symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "texture", gsampler2DArray, float3);
    symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProj", gsampler2D, float3);
    symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProj", gsampler2D, float4);
    symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProj", gsampler3D, float4);
    symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureLod", gsampler2D, float2, float1);
    symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureLod", gsampler3D, float3, float1);
    symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureLod", gsamplerCube, float3, float1);
    symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureLod", gsampler2DArray, float3, float1);

    if (resources.OES_EGL_image_external_essl3)
    {
        const TType *samplerExternalOES = TCache::getType(EbtSamplerExternalOES);

        symbolTable.insertBuiltIn(ESSL3_BUILTINS, float4, "texture", samplerExternalOES, float2);
        symbolTable.insertBuiltIn(ESSL3_BUILTINS, float4, "textureProj", samplerExternalOES,
                                  float3);
        symbolTable.insertBuiltIn(ESSL3_BUILTINS, float4, "textureProj", samplerExternalOES,
                                  float4);
    }

    if (type == GL_FRAGMENT_SHADER)
    {
        symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "texture", gsampler2D, float2, float1);
        symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "texture", gsampler3D, float3, float1);
        symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "texture", gsamplerCube, float3, float1);
        symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "texture", gsampler2DArray, float3,
                                  float1);
        symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProj", gsampler2D, float3, float1);
        symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProj", gsampler2D, float4, float1);
        symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProj", gsampler3D, float4, float1);

        if (resources.OES_EGL_image_external_essl3)
        {
            const TType *samplerExternalOES = TCache::getType(EbtSamplerExternalOES);

            symbolTable.insertBuiltIn(ESSL3_BUILTINS, float4, "texture", samplerExternalOES, float2,
                                      float1);
            symbolTable.insertBuiltIn(ESSL3_BUILTINS, float4, "textureProj", samplerExternalOES,
                                      float3, float1);
            symbolTable.insertBuiltIn(ESSL3_BUILTINS, float4, "textureProj", samplerExternalOES,
                                      float4, float1);
        }
    }

    const TType *sampler2DShadow      = TCache::getType(EbtSampler2DShadow);
    const TType *samplerCubeShadow    = TCache::getType(EbtSamplerCubeShadow);
    const TType *sampler2DArrayShadow = TCache::getType(EbtSampler2DArrayShadow);

    symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "texture", sampler2DShadow, float3);
    symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "texture", samplerCubeShadow, float4);
    symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "texture", sampler2DArrayShadow, float4);
    symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureProj", sampler2DShadow, float4);
    symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureLod", sampler2DShadow, float3,
                              float1);

    if (type == GL_FRAGMENT_SHADER)
    {
        symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "texture", sampler2DShadow, float3,
                                  float1);
        symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "texture", samplerCubeShadow, float4,
                                  float1);
        symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureProj", sampler2DShadow, float4,
                                  float1);
    }

    symbolTable.insertBuiltIn(ESSL3_BUILTINS, int2, "textureSize", gsampler2D, int1);
    symbolTable.insertBuiltIn(ESSL3_BUILTINS, int3, "textureSize", gsampler3D, int1);
    symbolTable.insertBuiltIn(ESSL3_BUILTINS, int2, "textureSize", gsamplerCube, int1);
    symbolTable.insertBuiltIn(ESSL3_BUILTINS, int3, "textureSize", gsampler2DArray, int1);
    symbolTable.insertBuiltIn(ESSL3_BUILTINS, int2, "textureSize", sampler2DShadow, int1);
    symbolTable.insertBuiltIn(ESSL3_BUILTINS, int2, "textureSize", samplerCubeShadow, int1);
    symbolTable.insertBuiltIn(ESSL3_BUILTINS, int3, "textureSize", sampler2DArrayShadow, int1);
    symbolTable.insertBuiltIn(ESSL3_BUILTINS, int2, "textureSize", gsampler2DMS);

    if (resources.OES_EGL_image_external_essl3)
    {
        const TType *samplerExternalOES = TCache::getType(EbtSamplerExternalOES);

        symbolTable.insertBuiltIn(ESSL3_BUILTINS, int2, "textureSize", samplerExternalOES, int1);
    }

    if (type == GL_FRAGMENT_SHADER)
    {
        symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpDFdx, genType, genType);
        symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpDFdy, genType, genType);
        symbolTable.insertBuiltInOp(ESSL3_BUILTINS, EOpFwidth, genType, genType);
    }

    symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureOffset", gsampler2D, float2, int2);
    symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureOffset", gsampler3D, float3, int3);
    symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureOffset", sampler2DShadow, float3,
                              int2);
    symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureOffset", gsampler2DArray, float3,
                              int2);

    if (type == GL_FRAGMENT_SHADER)
    {
        symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureOffset", gsampler2D, float2, int2,
                                  float1);
        symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureOffset", gsampler3D, float3, int3,
                                  float1);
        symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureOffset", sampler2DShadow, float3,
                                  int2, float1);
        symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureOffset", gsampler2DArray, float3,
                                  int2, float1);
    }

    symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjOffset", gsampler2D, float3, int2);
    symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjOffset", gsampler2D, float4, int2);
    symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjOffset", gsampler3D, float4, int3);
    symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureProjOffset", sampler2DShadow, float4,
                              int2);

    if (type == GL_FRAGMENT_SHADER)
    {
        symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjOffset", gsampler2D, float3,
                                  int2, float1);
        symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjOffset", gsampler2D, float4,
                                  int2, float1);
        symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjOffset", gsampler3D, float4,
                                  int3, float1);
        symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureProjOffset", sampler2DShadow,
                                  float4, int2, float1);
    }

    symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureLodOffset", gsampler2D, float2, float1,
                              int2);
    symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureLodOffset", gsampler3D, float3, float1,
                              int3);
    symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureLodOffset", sampler2DShadow, float3,
                              float1, int2);
    symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureLodOffset", gsampler2DArray, float3,
                              float1, int2);

    symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjLod", gsampler2D, float3, float1);
    symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjLod", gsampler2D, float4, float1);
    symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjLod", gsampler3D, float4, float1);
    symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureProjLod", sampler2DShadow, float4,
                              float1);

    symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjLodOffset", gsampler2D, float3,
                              float1, int2);
    symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjLodOffset", gsampler2D, float4,
                              float1, int2);
    symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjLodOffset", gsampler3D, float4,
                              float1, int3);
    symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureProjLodOffset", sampler2DShadow,
                              float4, float1, int2);

    symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "texelFetch", gsampler2D, int2, int1);
    symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "texelFetch", gsampler3D, int3, int1);
    symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "texelFetch", gsampler2DArray, int3, int1);

    if (resources.OES_EGL_image_external_essl3)
    {
        const TType *samplerExternalOES = TCache::getType(EbtSamplerExternalOES);

        symbolTable.insertBuiltIn(ESSL3_BUILTINS, float4, "texelFetch", samplerExternalOES, int2,
                                  int1);
    }

    symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "texelFetchOffset", gsampler2D, int2, int1,
                              int2);
    symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "texelFetchOffset", gsampler3D, int3, int1,
                              int3);
    symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "texelFetchOffset", gsampler2DArray, int3,
                              int1, int2);

    symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureGrad", gsampler2D, float2, float2,
                              float2);
    symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureGrad", gsampler3D, float3, float3,
                              float3);
    symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureGrad", gsamplerCube, float3, float3,
                              float3);
    symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureGrad", sampler2DShadow, float3,
                              float2, float2);
    symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureGrad", samplerCubeShadow, float4,
                              float3, float3);
    symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureGrad", gsampler2DArray, float3, float2,
                              float2);
    symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureGrad", sampler2DArrayShadow, float4,
                              float2, float2);

    symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureGradOffset", gsampler2D, float2,
                              float2, float2, int2);
    symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureGradOffset", gsampler3D, float3,
                              float3, float3, int3);
    symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureGradOffset", sampler2DShadow, float3,
                              float2, float2, int2);
    symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureGradOffset", gsampler2DArray, float3,
                              float2, float2, int2);
    symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureGradOffset", sampler2DArrayShadow,
                              float4, float2, float2, int2);

    symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjGrad", gsampler2D, float3, float2,
                              float2);
    symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjGrad", gsampler2D, float4, float2,
                              float2);
    symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjGrad", gsampler3D, float4, float3,
                              float3);
    symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureProjGrad", sampler2DShadow, float4,
                              float2, float2);

    symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjGradOffset", gsampler2D, float3,
                              float2, float2, int2);
    symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjGradOffset", gsampler2D, float4,
                              float2, float2, int2);
    symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjGradOffset", gsampler3D, float4,
                              float3, float3, int3);
    symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureProjGradOffset", sampler2DShadow,
                              float4, float2, float2, int2);

    const TType *gimage2D      = TCache::getType(EbtGImage2D);
    const TType *gimage3D      = TCache::getType(EbtGImage3D);
    const TType *gimage2DArray = TCache::getType(EbtGImage2DArray);
    const TType *gimageCube    = TCache::getType(EbtGImageCube);

    symbolTable.insertBuiltIn(ESSL3_1_BUILTINS, voidType, "imageStore", gimage2D, int2, gvec4);
    symbolTable.insertBuiltIn(ESSL3_1_BUILTINS, voidType, "imageStore", gimage3D, int3, gvec4);
    symbolTable.insertBuiltIn(ESSL3_1_BUILTINS, voidType, "imageStore", gimage2DArray, int3, gvec4);
    symbolTable.insertBuiltIn(ESSL3_1_BUILTINS, voidType, "imageStore", gimageCube, int3, gvec4);

    symbolTable.insertBuiltIn(ESSL3_1_BUILTINS, gvec4, "imageLoad", gimage2D, int2);
    symbolTable.insertBuiltIn(ESSL3_1_BUILTINS, gvec4, "imageLoad", gimage3D, int3);
    symbolTable.insertBuiltIn(ESSL3_1_BUILTINS, gvec4, "imageLoad", gimage2DArray, int3);
    symbolTable.insertBuiltIn(ESSL3_1_BUILTINS, gvec4, "imageLoad", gimageCube, int3);

    symbolTable.insertBuiltIn(ESSL3_1_BUILTINS, int2, "imageSize", gimage2D);
    symbolTable.insertBuiltIn(ESSL3_1_BUILTINS, int3, "imageSize", gimage3D);
    symbolTable.insertBuiltIn(ESSL3_1_BUILTINS, int3, "imageSize", gimage2DArray);
    symbolTable.insertBuiltIn(ESSL3_1_BUILTINS, int2, "imageSize", gimageCube);

    symbolTable.insertBuiltInFunctionNoParameters(ESSL3_1_BUILTINS, EOpMemoryBarrier, voidType,
                                                  "memoryBarrier");
    symbolTable.insertBuiltInFunctionNoParameters(ESSL3_1_BUILTINS, EOpMemoryBarrierAtomicCounter,
                                                  voidType, "memoryBarrierAtomicCounter");
    symbolTable.insertBuiltInFunctionNoParameters(ESSL3_1_BUILTINS, EOpMemoryBarrierBuffer,
                                                  voidType, "memoryBarrierBuffer");
    symbolTable.insertBuiltInFunctionNoParameters(ESSL3_1_BUILTINS, EOpMemoryBarrierImage, voidType,
                                                  "memoryBarrierImage");

    symbolTable.insertBuiltIn(ESSL3_1_BUILTINS, gvec4, "texelFetch", gsampler2DMS, int2, int1);

    if (type == GL_COMPUTE_SHADER)
    {
        symbolTable.insertBuiltInFunctionNoParameters(ESSL3_1_BUILTINS, EOpBarrier, voidType,
                                                      "barrier");
        symbolTable.insertBuiltInFunctionNoParameters(ESSL3_1_BUILTINS, EOpMemoryBarrierShared,
                                                      voidType, "memoryBarrierShared");
        symbolTable.insertBuiltInFunctionNoParameters(ESSL3_1_BUILTINS, EOpGroupMemoryBarrier,
                                                      voidType, "groupMemoryBarrier");
    }

    //
    // Depth range in window coordinates
    //
    TFieldList *fields       = NewPoolTFieldList();
    TSourceLoc zeroSourceLoc = {0, 0, 0, 0};
    auto highpFloat1         = new TType(EbtFloat, EbpHigh, EvqGlobal, 1);
    TField *near             = new TField(highpFloat1, NewPoolTString("near"), zeroSourceLoc);
    TField *far              = new TField(highpFloat1, NewPoolTString("far"), zeroSourceLoc);
    TField *diff             = new TField(highpFloat1, NewPoolTString("diff"), zeroSourceLoc);
    fields->push_back(near);
    fields->push_back(far);
    fields->push_back(diff);
    TStructure *depthRangeStruct =
        new TStructure(NewPoolTString("gl_DepthRangeParameters"), fields);
    TVariable *depthRangeParameters =
        new TVariable(&depthRangeStruct->name(), TType(depthRangeStruct), true);
    symbolTable.insert(COMMON_BUILTINS, depthRangeParameters);
    TVariable *depthRange = new TVariable(NewPoolTString("gl_DepthRange"), TType(depthRangeStruct));
    depthRange->setQualifier(EvqUniform);
    // Ensure we evaluate the mangled name for depth range, so we allocate to the current scope.
    depthRangeParameters->getType().getMangledName();
    depthRange->getType().getMangledName();
    symbolTable.insert(COMMON_BUILTINS, depthRange);

    //
    // Implementation dependent built-in constants.
    //
    symbolTable.insertConstInt(COMMON_BUILTINS, "gl_MaxVertexAttribs", resources.MaxVertexAttribs,
                               EbpMedium);
    symbolTable.insertConstInt(COMMON_BUILTINS, "gl_MaxVertexUniformVectors",
                               resources.MaxVertexUniformVectors, EbpMedium);
    symbolTable.insertConstInt(COMMON_BUILTINS, "gl_MaxVertexTextureImageUnits",
                               resources.MaxVertexTextureImageUnits, EbpMedium);
    symbolTable.insertConstInt(COMMON_BUILTINS, "gl_MaxCombinedTextureImageUnits",
                               resources.MaxCombinedTextureImageUnits, EbpMedium);
    symbolTable.insertConstInt(COMMON_BUILTINS, "gl_MaxTextureImageUnits",
                               resources.MaxTextureImageUnits, EbpMedium);
    symbolTable.insertConstInt(COMMON_BUILTINS, "gl_MaxFragmentUniformVectors",
                               resources.MaxFragmentUniformVectors, EbpMedium);

    symbolTable.insertConstInt(ESSL1_BUILTINS, "gl_MaxVaryingVectors", resources.MaxVaryingVectors,
                               EbpMedium);

    symbolTable.insertConstInt(COMMON_BUILTINS, "gl_MaxDrawBuffers", resources.MaxDrawBuffers,
                               EbpMedium);
    if (resources.EXT_blend_func_extended)
    {
        symbolTable.insertConstIntExt(COMMON_BUILTINS, "GL_EXT_blend_func_extended",
                                      "gl_MaxDualSourceDrawBuffersEXT",
                                      resources.MaxDualSourceDrawBuffers);
    }

    symbolTable.insertConstInt(ESSL3_BUILTINS, "gl_MaxVertexOutputVectors",
                               resources.MaxVertexOutputVectors, EbpMedium);
    symbolTable.insertConstInt(ESSL3_BUILTINS, "gl_MaxFragmentInputVectors",
                               resources.MaxFragmentInputVectors, EbpMedium);
    symbolTable.insertConstInt(ESSL3_BUILTINS, "gl_MinProgramTexelOffset",
                               resources.MinProgramTexelOffset, EbpMedium);
    symbolTable.insertConstInt(ESSL3_BUILTINS, "gl_MaxProgramTexelOffset",
                               resources.MaxProgramTexelOffset, EbpMedium);

    symbolTable.insertConstInt(ESSL3_1_BUILTINS, "gl_MaxImageUnits", resources.MaxImageUnits,
                               EbpMedium);
    symbolTable.insertConstInt(ESSL3_1_BUILTINS, "gl_MaxVertexImageUniforms",
                               resources.MaxVertexImageUniforms, EbpMedium);
    symbolTable.insertConstInt(ESSL3_1_BUILTINS, "gl_MaxFragmentImageUniforms",
                               resources.MaxFragmentImageUniforms, EbpMedium);
    symbolTable.insertConstInt(ESSL3_1_BUILTINS, "gl_MaxComputeImageUniforms",
                               resources.MaxComputeImageUniforms, EbpMedium);
    symbolTable.insertConstInt(ESSL3_1_BUILTINS, "gl_MaxCombinedImageUniforms",
                               resources.MaxCombinedImageUniforms, EbpMedium);

    symbolTable.insertConstInt(ESSL3_1_BUILTINS, "gl_MaxCombinedShaderOutputResources",
                               resources.MaxCombinedShaderOutputResources, EbpMedium);

    symbolTable.insertConstIvec3(ESSL3_1_BUILTINS, "gl_MaxComputeWorkGroupCount",
                                 resources.MaxComputeWorkGroupCount, EbpHigh);
    symbolTable.insertConstIvec3(ESSL3_1_BUILTINS, "gl_MaxComputeWorkGroupSize",
                                 resources.MaxComputeWorkGroupSize, EbpHigh);
    symbolTable.insertConstInt(ESSL3_1_BUILTINS, "gl_MaxComputeUniformComponents",
                               resources.MaxComputeUniformComponents, EbpMedium);
    symbolTable.insertConstInt(ESSL3_1_BUILTINS, "gl_MaxComputeTextureImageUnits",
                               resources.MaxComputeTextureImageUnits, EbpMedium);

    symbolTable.insertConstInt(ESSL3_1_BUILTINS, "gl_MaxComputeAtomicCounters",
                               resources.MaxComputeAtomicCounters, EbpMedium);
    symbolTable.insertConstInt(ESSL3_1_BUILTINS, "gl_MaxComputeAtomicCounterBuffers",
                               resources.MaxComputeAtomicCounterBuffers, EbpMedium);

    symbolTable.insertConstInt(ESSL3_1_BUILTINS, "gl_MaxVertexAtomicCounters",
                               resources.MaxVertexAtomicCounters, EbpMedium);
    symbolTable.insertConstInt(ESSL3_1_BUILTINS, "gl_MaxFragmentAtomicCounters",
                               resources.MaxFragmentAtomicCounters, EbpMedium);
    symbolTable.insertConstInt(ESSL3_1_BUILTINS, "gl_MaxCombinedAtomicCounters",
                               resources.MaxCombinedAtomicCounters, EbpMedium);
    symbolTable.insertConstInt(ESSL3_1_BUILTINS, "gl_MaxAtomicCounterBindings",
                               resources.MaxAtomicCounterBindings, EbpMedium);

    symbolTable.insertConstInt(ESSL3_1_BUILTINS, "gl_MaxVertexAtomicCounterBuffers",
                               resources.MaxVertexAtomicCounterBuffers, EbpMedium);
    symbolTable.insertConstInt(ESSL3_1_BUILTINS, "gl_MaxFragmentAtomicCounterBuffers",
                               resources.MaxFragmentAtomicCounterBuffers, EbpMedium);
    symbolTable.insertConstInt(ESSL3_1_BUILTINS, "gl_MaxCombinedAtomicCounterBuffers",
                               resources.MaxCombinedAtomicCounterBuffers, EbpMedium);
    symbolTable.insertConstInt(ESSL3_1_BUILTINS, "gl_MaxAtomicCounterBufferSize",
                               resources.MaxAtomicCounterBufferSize, EbpMedium);
}

void IdentifyBuiltIns(sh::GLenum type,
                      ShShaderSpec spec,
                      const ShBuiltInResources &resources,
                      TSymbolTable &symbolTable)
{
    //
    // Insert some special built-in variables that are not in
    // the built-in header files.
    //

    if (resources.OVR_multiview && type != GL_COMPUTE_SHADER)
    {
        symbolTable.insert(COMMON_BUILTINS, "GL_OVR_multiview",
                           new TVariable(NewPoolTString("gl_ViewID_OVR"),
                                         TType(EbtUInt, EbpHigh, EvqViewIDOVR, 1)));
    }

    switch (type)
    {
        case GL_FRAGMENT_SHADER:
        {
            symbolTable.insert(COMMON_BUILTINS,
                               new TVariable(NewPoolTString("gl_FragCoord"),
                                             TType(EbtFloat, EbpMedium, EvqFragCoord, 4)));
            symbolTable.insert(COMMON_BUILTINS,
                               new TVariable(NewPoolTString("gl_FrontFacing"),
                                             TType(EbtBool, EbpUndefined, EvqFrontFacing, 1)));
            symbolTable.insert(COMMON_BUILTINS,
                               new TVariable(NewPoolTString("gl_PointCoord"),
                                             TType(EbtFloat, EbpMedium, EvqPointCoord, 2)));

            symbolTable.insert(ESSL1_BUILTINS,
                               new TVariable(NewPoolTString("gl_FragColor"),
                                             TType(EbtFloat, EbpMedium, EvqFragColor, 4)));
            TType fragData(EbtFloat, EbpMedium, EvqFragData, 4, 1, true);
            fragData.setArraySize(resources.MaxDrawBuffers);
            symbolTable.insert(ESSL1_BUILTINS,
                               new TVariable(NewPoolTString("gl_FragData"), fragData));

            if (resources.EXT_blend_func_extended)
            {
                symbolTable.insert(
                    ESSL1_BUILTINS, "GL_EXT_blend_func_extended",
                    new TVariable(NewPoolTString("gl_SecondaryFragColorEXT"),
                                  TType(EbtFloat, EbpMedium, EvqSecondaryFragColorEXT, 4)));
                TType secondaryFragData(EbtFloat, EbpMedium, EvqSecondaryFragDataEXT, 4, 1, true);
                secondaryFragData.setArraySize(resources.MaxDualSourceDrawBuffers);
                symbolTable.insert(
                    ESSL1_BUILTINS, "GL_EXT_blend_func_extended",
                    new TVariable(NewPoolTString("gl_SecondaryFragDataEXT"), secondaryFragData));
            }

            if (resources.EXT_frag_depth)
            {
                symbolTable.insert(
                    ESSL1_BUILTINS, "GL_EXT_frag_depth",
                    new TVariable(
                        NewPoolTString("gl_FragDepthEXT"),
                        TType(EbtFloat, resources.FragmentPrecisionHigh ? EbpHigh : EbpMedium,
                              EvqFragDepthEXT, 1)));
            }

            symbolTable.insert(ESSL3_BUILTINS,
                               new TVariable(NewPoolTString("gl_FragDepth"),
                                             TType(EbtFloat, EbpHigh, EvqFragDepth, 1)));

            if (resources.EXT_shader_framebuffer_fetch || resources.NV_shader_framebuffer_fetch)
            {
                TType lastFragData(EbtFloat, EbpMedium, EvqLastFragData, 4, 1, true);
                lastFragData.setArraySize(resources.MaxDrawBuffers);

                if (resources.EXT_shader_framebuffer_fetch)
                {
                    symbolTable.insert(
                        ESSL1_BUILTINS, "GL_EXT_shader_framebuffer_fetch",
                        new TVariable(NewPoolTString("gl_LastFragData"), lastFragData));
                }
                else if (resources.NV_shader_framebuffer_fetch)
                {
                    symbolTable.insert(
                        ESSL1_BUILTINS, "GL_NV_shader_framebuffer_fetch",
                        new TVariable(NewPoolTString("gl_LastFragColor"),
                                      TType(EbtFloat, EbpMedium, EvqLastFragColor, 4)));
                    symbolTable.insert(
                        ESSL1_BUILTINS, "GL_NV_shader_framebuffer_fetch",
                        new TVariable(NewPoolTString("gl_LastFragData"), lastFragData));
                }
            }
            else if (resources.ARM_shader_framebuffer_fetch)
            {
                symbolTable.insert(ESSL1_BUILTINS, "GL_ARM_shader_framebuffer_fetch",
                                   new TVariable(NewPoolTString("gl_LastFragColorARM"),
                                                 TType(EbtFloat, EbpMedium, EvqLastFragColor, 4)));
            }
        }

        break;

        case GL_VERTEX_SHADER:
            symbolTable.insert(COMMON_BUILTINS,
                               new TVariable(NewPoolTString("gl_Position"),
                                             TType(EbtFloat, EbpHigh, EvqPosition, 4)));
            symbolTable.insert(COMMON_BUILTINS,
                               new TVariable(NewPoolTString("gl_PointSize"),
                                             TType(EbtFloat, EbpMedium, EvqPointSize, 1)));
            symbolTable.insert(ESSL3_BUILTINS,
                               new TVariable(NewPoolTString("gl_InstanceID"),
                                             TType(EbtInt, EbpHigh, EvqInstanceID, 1)));
            symbolTable.insert(ESSL3_BUILTINS,
                               new TVariable(NewPoolTString("gl_VertexID"),
                                             TType(EbtInt, EbpHigh, EvqVertexID, 1)));
            break;
        case GL_COMPUTE_SHADER:
        {
            symbolTable.insert(ESSL3_1_BUILTINS,
                               new TVariable(NewPoolTString("gl_NumWorkGroups"),
                                             TType(EbtUInt, EbpUndefined, EvqNumWorkGroups, 3)));
            symbolTable.insert(ESSL3_1_BUILTINS,
                               new TVariable(NewPoolTString("gl_WorkGroupSize"),
                                             TType(EbtUInt, EbpUndefined, EvqWorkGroupSize, 3)));
            symbolTable.insert(ESSL3_1_BUILTINS,
                               new TVariable(NewPoolTString("gl_WorkGroupID"),
                                             TType(EbtUInt, EbpUndefined, EvqWorkGroupID, 3)));
            symbolTable.insert(
                ESSL3_1_BUILTINS,
                new TVariable(NewPoolTString("gl_LocalInvocationID"),
                              TType(EbtUInt, EbpUndefined, EvqLocalInvocationID, 3)));
            symbolTable.insert(
                ESSL3_1_BUILTINS,
                new TVariable(NewPoolTString("gl_GlobalInvocationID"),
                              TType(EbtUInt, EbpUndefined, EvqGlobalInvocationID, 3)));
            symbolTable.insert(
                ESSL3_1_BUILTINS,
                new TVariable(NewPoolTString("gl_LocalInvocationIndex"),
                              TType(EbtUInt, EbpUndefined, EvqLocalInvocationIndex, 1)));
        }
        break;

        default:
            assert(false && "Language not supported");
    }
}

void InitExtensionBehavior(const ShBuiltInResources &resources, TExtensionBehavior &extBehavior)
{
    if (resources.OES_standard_derivatives)
        extBehavior["GL_OES_standard_derivatives"] = EBhUndefined;
    if (resources.OES_EGL_image_external)
        extBehavior["GL_OES_EGL_image_external"] = EBhUndefined;
    if (resources.OES_EGL_image_external_essl3)
        extBehavior["GL_OES_EGL_image_external_essl3"] = EBhUndefined;
    if (resources.NV_EGL_stream_consumer_external)
        extBehavior["GL_NV_EGL_stream_consumer_external"] = EBhUndefined;
    if (resources.ARB_texture_rectangle)
        extBehavior["GL_ARB_texture_rectangle"] = EBhUndefined;
    if (resources.EXT_blend_func_extended)
        extBehavior["GL_EXT_blend_func_extended"] = EBhUndefined;
    if (resources.EXT_draw_buffers)
        extBehavior["GL_EXT_draw_buffers"] = EBhUndefined;
    if (resources.EXT_frag_depth)
        extBehavior["GL_EXT_frag_depth"] = EBhUndefined;
    if (resources.EXT_shader_texture_lod)
        extBehavior["GL_EXT_shader_texture_lod"] = EBhUndefined;
    if (resources.EXT_shader_framebuffer_fetch)
        extBehavior["GL_EXT_shader_framebuffer_fetch"] = EBhUndefined;
    if (resources.NV_shader_framebuffer_fetch)
        extBehavior["GL_NV_shader_framebuffer_fetch"] = EBhUndefined;
    if (resources.ARM_shader_framebuffer_fetch)
        extBehavior["GL_ARM_shader_framebuffer_fetch"] = EBhUndefined;
    if (resources.OVR_multiview)
    {
        extBehavior["GL_OVR_multiview"]  = EBhUndefined;
        extBehavior["GL_OVR_multiview2"] = EBhUndefined;
    }
}

void ResetExtensionBehavior(TExtensionBehavior &extBehavior)
{
    for (auto ext_iter = extBehavior.begin(); ext_iter != extBehavior.end(); ++ext_iter)
    {
        ext_iter->second = EBhUndefined;
    }
}

}  // namespace sh