1 // Copyright 2016 The SwiftShader Authors. All Rights Reserved. 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 // 16 // Create strings that declare built-in definitions, add built-ins that 17 // cannot be expressed in the files, and establish mappings between 18 // built-in functions and operators. 19 // 20 21 #include "Initialize.h" 22 23 #include "intermediate.h" 24 25 void InsertBuiltInFunctions(GLenum type, const ShBuiltInResources &resources, TSymbolTable &symbolTable) 26 { 27 TType *float1 = new TType(EbtFloat); 28 TType *float2 = new TType(EbtFloat, 2); 29 TType *float3 = new TType(EbtFloat, 3); 30 TType *float4 = new TType(EbtFloat, 4); 31 TType *genType = new TType(EbtGenType); 32 33 TType *int1 = new TType(EbtInt); 34 TType *int2 = new TType(EbtInt, 2); 35 TType *int3 = new TType(EbtInt, 3); 36 TType *uint1 = new TType(EbtUInt); 37 TType *genIType = new TType(EbtGenIType); 38 TType *genUType = new TType(EbtGenUType); 39 TType *genBType = new TType(EbtGenBType); 40 41 // 42 // Angle and Trigonometric Functions. 43 // 44 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpRadians, genType, "radians", genType); 45 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpDegrees, genType, "degrees", genType); 46 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpSin, genType, "sin", genType); 47 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpCos, genType, "cos", genType); 48 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpTan, genType, "tan", genType); 49 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpAsin, genType, "asin", genType); 50 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpAcos, genType, "acos", genType); 51 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpAtan, genType, "atan", genType, genType); 52 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpAtan, genType, "atan", genType); 53 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpSinh, genType, "sinh", genType); 54 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpCosh, genType, "cosh", genType); 55 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpTanh, genType, "tanh", genType); 56 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpAsinh, genType, "asinh", genType); 57 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpAcosh, genType, "acosh", genType); 58 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpAtanh, genType, "atanh", genType); 59 60 // 61 // Exponential Functions. 62 // 63 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpPow, genType, "pow", genType, genType); 64 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpExp, genType, "exp", genType); 65 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpLog, genType, "log", genType); 66 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpExp2, genType, "exp2", genType); 67 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpLog2, genType, "log2", genType); 68 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpSqrt, genType, "sqrt", genType); 69 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpInverseSqrt, genType, "inversesqrt", genType); 70 71 // 72 // Common Functions. 73 // 74 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpAbs, genType, "abs", genType); 75 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpAbs, genIType, "abs", genIType); 76 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpSign, genType, "sign", genType); 77 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpSign, genIType, "sign", genIType); 78 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpFloor, genType, "floor", genType); 79 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpTrunc, genType, "trunc", genType); 80 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpRound, genType, "round", genType); 81 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpRoundEven, genType, "roundEven", genType); 82 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpCeil, genType, "ceil", genType); 83 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpFract, genType, "fract", genType); 84 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpMod, genType, "mod", genType, float1); 85 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpMod, genType, "mod", genType, genType); 86 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpMin, genType, "min", genType, float1); 87 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpMin, genType, "min", genType, genType); 88 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpMin, genIType, "min", genIType, genIType); 89 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpMin, genIType, "min", genIType, int1); 90 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpMin, genUType, "min", genUType, genUType); 91 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpMin, genUType, "min", genUType, uint1); 92 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpMax, genType, "max", genType, float1); 93 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpMax, genType, "max", genType, genType); 94 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpMax, genIType, "max", genIType, genIType); 95 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpMax, genIType, "max", genIType, int1); 96 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpMax, genUType, "max", genUType, genUType); 97 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpMax, genUType, "max", genUType, uint1); 98 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpClamp, genType, "clamp", genType, float1, float1); 99 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpClamp, genType, "clamp", genType, genType, genType); 100 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpClamp, genIType, "clamp", genIType, int1, int1); 101 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpClamp, genIType, "clamp", genIType, genIType, genIType); 102 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpClamp, genUType, "clamp", genUType, uint1, uint1); 103 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpClamp, genUType, "clamp", genUType, genUType, genUType); 104 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpMix, genType, "mix", genType, genType, float1); 105 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpMix, genType, "mix", genType, genType, genType); 106 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpMix, genType, "mix", genType, genType, genBType); 107 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpStep, genType, "step", genType, genType); 108 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpStep, genType, "step", float1, genType); 109 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpSmoothStep, genType, "smoothstep", genType, genType, genType); 110 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpSmoothStep, genType, "smoothstep", float1, float1, genType); 111 112 TType *outFloat1 = new TType(EbtFloat, EbpUndefined, EvqOut); 113 TType *outFloat2 = new TType(EbtFloat, EbpUndefined, EvqOut, 2); 114 TType *outFloat3 = new TType(EbtFloat, EbpUndefined, EvqOut, 3); 115 TType *outFloat4 = new TType(EbtFloat, EbpUndefined, EvqOut, 4); 116 117 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpModf, float1, "modf", float1, outFloat1); 118 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpModf, float2, "modf", float2, outFloat2); 119 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpModf, float3, "modf", float3, outFloat3); 120 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpModf, float4, "modf", float4, outFloat4); 121 122 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpIsNan, genBType, "isnan", genType); 123 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpIsInf, genBType, "isinf", genType); 124 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpFloatBitsToInt, genIType, "floatBitsToInt", genType); 125 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpFloatBitsToUint, genUType, "floatBitsToUint", genType); 126 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpIntBitsToFloat, genType, "intBitsToFloat", genIType); 127 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpUintBitsToFloat, genType, "uintBitsToFloat", genUType); 128 129 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpPackSnorm2x16, uint1, "packSnorm2x16", float2); 130 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpPackUnorm2x16, uint1, "packUnorm2x16", float2); 131 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpPackHalf2x16, uint1, "packHalf2x16", float2); 132 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpUnpackSnorm2x16, float2, "unpackSnorm2x16", uint1); 133 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpUnpackUnorm2x16, float2, "unpackUnorm2x16", uint1); 134 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpUnpackHalf2x16, float2, "unpackHalf2x16", uint1); 135 136 // 137 // Geometric Functions. 138 // 139 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpLength, float1, "length", genType); 140 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpDistance, float1, "distance", genType, genType); 141 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpDot, float1, "dot", genType, genType); 142 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpCross, float3, "cross", float3, float3); 143 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpNormalize, genType, "normalize", genType); 144 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpFaceForward, genType, "faceforward", genType, genType, genType); 145 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpReflect, genType, "reflect", genType, genType); 146 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpRefract, genType, "refract", genType, genType, float1); 147 148 TType *mat2 = new TType(EbtFloat, 2, 2); 149 TType *mat2x3 = new TType(EbtFloat, 2, 3); 150 TType *mat2x4 = new TType(EbtFloat, 2, 4); 151 TType *mat3x2 = new TType(EbtFloat, 3, 2); 152 TType *mat3 = new TType(EbtFloat, 3, 3); 153 TType *mat3x4 = new TType(EbtFloat, 3, 4); 154 TType *mat4x2 = new TType(EbtFloat, 4, 2); 155 TType *mat4x3 = new TType(EbtFloat, 4, 3); 156 TType *mat4 = new TType(EbtFloat, 4, 4); 157 158 // 159 // Matrix Functions. 160 // 161 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpMul, mat2, "matrixCompMult", mat2, mat2); 162 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpMul, mat3, "matrixCompMult", mat3, mat3); 163 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpMul, mat4, "matrixCompMult", mat4, mat4); 164 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpMul, mat2x3, "matrixCompMult", mat2x3, mat2x3); 165 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpMul, mat3x2, "matrixCompMult", mat3x2, mat3x2); 166 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpMul, mat2x4, "matrixCompMult", mat2x4, mat2x4); 167 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpMul, mat4x2, "matrixCompMult", mat4x2, mat4x2); 168 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpMul, mat3x4, "matrixCompMult", mat3x4, mat3x4); 169 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpMul, mat4x3, "matrixCompMult", mat4x3, mat4x3); 170 171 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpOuterProduct, mat2, "outerProduct", float2, float2); 172 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpOuterProduct, mat3, "outerProduct", float3, float3); 173 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpOuterProduct, mat4, "outerProduct", float4, float4); 174 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpOuterProduct, mat2x3, "outerProduct", float3, float2); 175 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpOuterProduct, mat3x2, "outerProduct", float2, float3); 176 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpOuterProduct, mat2x4, "outerProduct", float4, float2); 177 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpOuterProduct, mat4x2, "outerProduct", float2, float4); 178 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpOuterProduct, mat3x4, "outerProduct", float4, float3); 179 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpOuterProduct, mat4x3, "outerProduct", float3, float4); 180 181 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpTranspose, mat2, "transpose", mat2); 182 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpTranspose, mat3, "transpose", mat3); 183 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpTranspose, mat4, "transpose", mat4); 184 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpTranspose, mat2x3, "transpose", mat3x2); 185 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpTranspose, mat3x2, "transpose", mat2x3); 186 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpTranspose, mat2x4, "transpose", mat4x2); 187 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpTranspose, mat4x2, "transpose", mat2x4); 188 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpTranspose, mat3x4, "transpose", mat4x3); 189 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpTranspose, mat4x3, "transpose", mat3x4); 190 191 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpDeterminant, float1, "determinant", mat2); 192 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpDeterminant, float1, "determinant", mat3); 193 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpDeterminant, float1, "determinant", mat4); 194 195 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpInverse, mat2, "inverse", mat2); 196 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpInverse, mat3, "inverse", mat3); 197 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpInverse, mat4, "inverse", mat4); 198 199 200 TType *bool1 = new TType(EbtBool); 201 TType *vec = new TType(EbtVec); 202 TType *ivec = new TType(EbtIVec); 203 TType *uvec = new TType(EbtUVec); 204 TType *bvec = new TType(EbtBVec); 205 206 // 207 // Vector relational functions. 208 // 209 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpLessThan, bvec, "lessThan", vec, vec); 210 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpLessThan, bvec, "lessThan", ivec, ivec); 211 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpLessThan, bvec, "lessThan", uvec, uvec); 212 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpLessThanEqual, bvec, "lessThanEqual", vec, vec); 213 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpLessThanEqual, bvec, "lessThanEqual", ivec, ivec); 214 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpLessThanEqual, bvec, "lessThanEqual", uvec, uvec); 215 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpGreaterThan, bvec, "greaterThan", vec, vec); 216 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpGreaterThan, bvec, "greaterThan", ivec, ivec); 217 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpGreaterThan, bvec, "greaterThan", uvec, uvec); 218 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpGreaterThanEqual, bvec, "greaterThanEqual", vec, vec); 219 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpGreaterThanEqual, bvec, "greaterThanEqual", ivec, ivec); 220 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpGreaterThanEqual, bvec, "greaterThanEqual", uvec, uvec); 221 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpVectorEqual, bvec, "equal", vec, vec); 222 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpVectorEqual, bvec, "equal", ivec, ivec); 223 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpVectorEqual, bvec, "equal", uvec, uvec); 224 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpVectorEqual, bvec, "equal", bvec, bvec); 225 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpVectorNotEqual, bvec, "notEqual", vec, vec); 226 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpVectorNotEqual, bvec, "notEqual", ivec, ivec); 227 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpVectorNotEqual, bvec, "notEqual", uvec, uvec); 228 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpVectorNotEqual, bvec, "notEqual", bvec, bvec); 229 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpAny, bool1, "any", bvec); 230 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpAll, bool1, "all", bvec); 231 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpVectorLogicalNot, bvec, "not", bvec); 232 233 TType *sampler2D = new TType(EbtSampler2D); 234 TType *samplerCube = new TType(EbtSamplerCube); 235 TType *sampler3D = new TType(EbtSampler3D); 236 237 // 238 // Texture Functions for GLSL ES 1.0 239 // 240 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2D", sampler2D, float2); 241 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2DProj", sampler2D, float3); 242 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2DProj", sampler2D, float4); 243 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "textureCube", samplerCube, float3); 244 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture3D", sampler3D, float3); 245 246 if(resources.ARB_texture_rectangle) 247 { 248 TType *sampler2DRect = new TType(EbtSampler2DRect); 249 250 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2DRect", sampler2DRect, float2); 251 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2DRectProj", sampler2DRect, float3); 252 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2DRectProj", sampler2DRect, float4); 253 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float4, "texture", sampler2DRect, float2); 254 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float4, "textureProj", sampler2DRect, float3); 255 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float4, "textureProj", sampler2DRect, float4); 256 } 257 258 if(resources.OES_EGL_image_external) 259 { 260 TType *samplerExternalOES = new TType(EbtSamplerExternalOES); 261 262 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2D", samplerExternalOES, float2); 263 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2DProj", samplerExternalOES, float3); 264 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2DProj", samplerExternalOES, float4); 265 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture3D", samplerExternalOES, float3); 266 } 267 268 if(type == GL_FRAGMENT_SHADER) 269 { 270 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2D", sampler2D, float2, float1); 271 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2DProj", sampler2D, float3, float1); 272 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2DProj", sampler2D, float4, float1); 273 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "textureCube", samplerCube, float3, float1); 274 275 if(resources.OES_standard_derivatives) 276 { 277 symbolTable.insertBuiltIn(ESSL1_BUILTINS, EOpDFdx, "GL_OES_standard_derivatives", genType, "dFdx", genType); 278 symbolTable.insertBuiltIn(ESSL1_BUILTINS, EOpDFdy, "GL_OES_standard_derivatives", genType, "dFdy", genType); 279 symbolTable.insertBuiltIn(ESSL1_BUILTINS, EOpFwidth,"GL_OES_standard_derivatives", genType, "fwidth", genType); 280 } 281 } 282 283 if(type == GL_VERTEX_SHADER) 284 { 285 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2DLod", sampler2D, float2, float1); 286 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2DProjLod", sampler2D, float3, float1); 287 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2DProjLod", sampler2D, float4, float1); 288 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "textureCubeLod", samplerCube, float3, float1); 289 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture3DLod", sampler3D, float3, float1); 290 } 291 292 TType *gvec4 = new TType(EbtGVec4); 293 294 TType *gsampler2D = new TType(EbtGSampler2D); 295 TType *gsamplerCube = new TType(EbtGSamplerCube); 296 TType *gsampler3D = new TType(EbtGSampler3D); 297 TType *gsampler2DArray = new TType(EbtGSampler2DArray); 298 299 // 300 // Texture Functions for GLSL ES 3.0 301 // 302 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "texture", gsampler2D, float2); 303 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "texture", gsampler3D, float3); 304 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "texture", gsamplerCube, float3); 305 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "texture", gsampler2DArray, float3); 306 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProj", gsampler2D, float3); 307 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProj", gsampler2D, float4); 308 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProj", gsampler3D, float4); 309 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureLod", gsampler2D, float2, float1); 310 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureLod", gsampler3D, float3, float1); 311 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureLod", gsamplerCube, float3, float1); 312 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureLod", gsampler2DArray, float3, float1); 313 314 if(type == GL_FRAGMENT_SHADER) 315 { 316 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "texture", gsampler2D, float2, float1); 317 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "texture", gsampler3D, float3, float1); 318 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "texture", gsamplerCube, float3, float1); 319 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "texture", gsampler2DArray, float3, float1); 320 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProj", gsampler2D, float3, float1); 321 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProj", gsampler2D, float4, float1); 322 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProj", gsampler3D, float4, float1); 323 } 324 325 TType *sampler2DShadow = new TType(EbtSampler2DShadow); 326 TType *samplerCubeShadow = new TType(EbtSamplerCubeShadow); 327 TType *sampler2DArrayShadow = new TType(EbtSampler2DArrayShadow); 328 329 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "texture", sampler2DShadow, float3); 330 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "texture", samplerCubeShadow, float4); 331 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "texture", sampler2DArrayShadow, float4); 332 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureProj", sampler2DShadow, float4); 333 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureLod", sampler2DShadow, float3, float1); 334 335 if(type == GL_FRAGMENT_SHADER) 336 { 337 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "texture", sampler2DShadow, float3, float1); 338 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "texture", samplerCubeShadow, float4, float1); 339 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureProj", sampler2DShadow, float4, float1); 340 } 341 342 symbolTable.insertBuiltIn(ESSL3_BUILTINS, int2, "textureSize", gsampler2D, int1); 343 symbolTable.insertBuiltIn(ESSL3_BUILTINS, int3, "textureSize", gsampler3D, int1); 344 symbolTable.insertBuiltIn(ESSL3_BUILTINS, int2, "textureSize", gsamplerCube, int1); 345 symbolTable.insertBuiltIn(ESSL3_BUILTINS, int3, "textureSize", gsampler2DArray, int1); 346 symbolTable.insertBuiltIn(ESSL3_BUILTINS, int2, "textureSize", sampler2DShadow, int1); 347 symbolTable.insertBuiltIn(ESSL3_BUILTINS, int2, "textureSize", samplerCubeShadow, int1); 348 symbolTable.insertBuiltIn(ESSL3_BUILTINS, int3, "textureSize", sampler2DArrayShadow, int1); 349 350 if(type == GL_FRAGMENT_SHADER) 351 { 352 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpDFdx, genType, "dFdx", genType); 353 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpDFdy, genType, "dFdy", genType); 354 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpFwidth, genType, "fwidth", genType); 355 } 356 357 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureOffset", gsampler2D, float2, int2); 358 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureOffset", gsampler3D, float3, int3); 359 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureOffset", sampler2DShadow, float3, int2); 360 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureOffset", gsampler2DArray, float3, int2); 361 362 if(type == GL_FRAGMENT_SHADER) 363 { 364 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureOffset", gsampler2D, float2, int2, float1); 365 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureOffset", gsampler3D, float3, int3, float1); 366 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureOffset", sampler2DShadow, float3, int2, float1); 367 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureOffset", gsampler2DArray, float3, int2, float1); 368 } 369 370 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjOffset", gsampler2D, float3, int2); 371 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjOffset", gsampler2D, float4, int2); 372 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjOffset", gsampler3D, float4, int3); 373 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureProjOffset", sampler2DShadow, float4, int2); 374 375 if(type == GL_FRAGMENT_SHADER) 376 { 377 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjOffset", gsampler2D, float3, int2, float1); 378 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjOffset", gsampler2D, float4, int2, float1); 379 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjOffset", gsampler3D, float4, int3, float1); 380 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureProjOffset", sampler2DShadow, float4, int2, float1); 381 } 382 383 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureLodOffset", gsampler2D, float2, float1, int2); 384 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureLodOffset", gsampler3D, float3, float1, int3); 385 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureLodOffset", sampler2DShadow, float3, float1, int2); 386 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureLodOffset", gsampler2DArray, float3, float1, int2); 387 388 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjLod", gsampler2D, float3, float1); 389 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjLod", gsampler2D, float4, float1); 390 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjLod", gsampler3D, float4, float1); 391 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureProjLod", sampler2DShadow, float4, float1); 392 393 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjLodOffset", gsampler2D, float3, float1, int2); 394 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjLodOffset", gsampler2D, float4, float1, int2); 395 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjLodOffset", gsampler3D, float4, float1, int3); 396 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureProjLodOffset", sampler2DShadow, float4, float1, int2); 397 398 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "texelFetch", gsampler2D, int2, int1); 399 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "texelFetch", gsampler3D, int3, int1); 400 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "texelFetch", gsampler2DArray, int3, int1); 401 402 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "texelFetchOffset", gsampler2D, int2, int1, int2); 403 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "texelFetchOffset", gsampler3D, int3, int1, int3); 404 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "texelFetchOffset", gsampler2DArray, int3, int1, int2); 405 406 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureGrad", gsampler2D, float2, float2, float2); 407 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureGrad", gsampler3D, float3, float3, float3); 408 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureGrad", gsamplerCube, float3, float3, float3); 409 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureGrad", sampler2DShadow, float3, float2, float2); 410 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureGrad", samplerCubeShadow, float4, float3, float3); 411 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureGrad", gsampler2DArray, float3, float2, float2); 412 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureGrad", sampler2DArrayShadow, float4, float2, float2); 413 414 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureGradOffset", gsampler2D, float2, float2, float2, int2); 415 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureGradOffset", gsampler3D, float3, float3, float3, int3); 416 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureGradOffset", sampler2DShadow, float3, float2, float2, int2); 417 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureGradOffset", gsampler2DArray, float3, float2, float2, int2); 418 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureGradOffset", sampler2DArrayShadow, float4, float2, float2, int2); 419 420 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjGrad", gsampler2D, float3, float2, float2); 421 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjGrad", gsampler2D, float4, float2, float2); 422 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjGrad", gsampler3D, float4, float3, float3); 423 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureProjGrad", sampler2DShadow, float4, float2, float2); 424 425 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjGradOffset", gsampler2D, float3, float2, float2, int2); 426 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjGradOffset", gsampler2D, float4, float2, float2, int2); 427 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjGradOffset", gsampler3D, float4, float3, float3, int3); 428 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureProjGradOffset", sampler2DShadow, float4, float2, float2, int2); 429 430 // 431 // Depth range in window coordinates 432 // 433 TFieldList *fields = NewPoolTFieldList(); 434 TSourceLoc zeroSourceLoc = { 0, 0, 0, 0 }; 435 TField *near = new TField(new TType(EbtFloat, EbpHigh, EvqGlobal, 1), NewPoolTString("near"), zeroSourceLoc); 436 TField *far = new TField(new TType(EbtFloat, EbpHigh, EvqGlobal, 1), NewPoolTString("far"), zeroSourceLoc); 437 TField *diff = new TField(new TType(EbtFloat, EbpHigh, EvqGlobal, 1), NewPoolTString("diff"), zeroSourceLoc); 438 fields->push_back(near); 439 fields->push_back(far); 440 fields->push_back(diff); 441 TStructure *depthRangeStruct = new TStructure(NewPoolTString("gl_DepthRangeParameters"), fields); 442 TVariable *depthRangeParameters = new TVariable(&depthRangeStruct->name(), depthRangeStruct, true); 443 symbolTable.insert(COMMON_BUILTINS, depthRangeParameters); 444 TVariable *depthRange = new TVariable(NewPoolTString("gl_DepthRange"), TType(depthRangeStruct)); 445 depthRange->setQualifier(EvqUniform); 446 symbolTable.insert(COMMON_BUILTINS, depthRange); 447 448 // 449 // Implementation dependent built-in constants. 450 // 451 symbolTable.insertConstInt(COMMON_BUILTINS, "gl_MaxVertexAttribs", resources.MaxVertexAttribs); 452 symbolTable.insertConstInt(COMMON_BUILTINS, "gl_MaxVertexUniformVectors", resources.MaxVertexUniformVectors); 453 symbolTable.insertConstInt(COMMON_BUILTINS, "gl_MaxVertexTextureImageUnits", resources.MaxVertexTextureImageUnits); 454 symbolTable.insertConstInt(COMMON_BUILTINS, "gl_MaxCombinedTextureImageUnits", resources.MaxCombinedTextureImageUnits); 455 symbolTable.insertConstInt(COMMON_BUILTINS, "gl_MaxTextureImageUnits", resources.MaxTextureImageUnits); 456 symbolTable.insertConstInt(COMMON_BUILTINS, "gl_MaxFragmentUniformVectors", resources.MaxFragmentUniformVectors); 457 symbolTable.insertConstInt(COMMON_BUILTINS, "gl_MaxDrawBuffers", resources.MaxDrawBuffers); 458 symbolTable.insertConstInt(ESSL1_BUILTINS, "gl_MaxVaryingVectors", resources.MaxVaryingVectors); 459 symbolTable.insertConstInt(ESSL3_BUILTINS, "gl_MaxVertexOutputVectors", resources.MaxVertexOutputVectors); 460 symbolTable.insertConstInt(ESSL3_BUILTINS, "gl_MaxFragmentInputVectors", resources.MaxFragmentInputVectors); 461 symbolTable.insertConstInt(ESSL3_BUILTINS, "gl_MinProgramTexelOffset", resources.MinProgramTexelOffset); 462 symbolTable.insertConstInt(ESSL3_BUILTINS, "gl_MaxProgramTexelOffset", resources.MaxProgramTexelOffset); 463 } 464 465 void IdentifyBuiltIns(GLenum shaderType, 466 const ShBuiltInResources &resources, 467 TSymbolTable &symbolTable) 468 { 469 // 470 // First, insert some special built-in variables that are not in 471 // the built-in header files. 472 // 473 switch(shaderType) 474 { 475 case GL_FRAGMENT_SHADER: 476 symbolTable.insert(COMMON_BUILTINS, new TVariable(NewPoolTString("gl_FragCoord"), TType(EbtFloat, EbpMedium, EvqFragCoord, 4))); 477 symbolTable.insert(COMMON_BUILTINS, new TVariable(NewPoolTString("gl_FrontFacing"), TType(EbtBool, EbpUndefined, EvqFrontFacing, 1))); 478 symbolTable.insert(COMMON_BUILTINS, new TVariable(NewPoolTString("gl_PointCoord"), TType(EbtFloat, EbpMedium, EvqPointCoord, 2))); 479 symbolTable.insert(ESSL1_BUILTINS, new TVariable(NewPoolTString("gl_FragColor"), TType(EbtFloat, EbpMedium, EvqFragColor, 4))); 480 symbolTable.insert(ESSL1_BUILTINS, new TVariable(NewPoolTString("gl_FragData[gl_MaxDrawBuffers]"), TType(EbtFloat, EbpMedium, EvqFragData, 4))); 481 symbolTable.insert(ESSL3_BUILTINS, new TVariable(NewPoolTString("gl_FragDepth"), TType(EbtFloat, EbpHigh, EvqFragDepth, 1))); 482 break; 483 case GL_VERTEX_SHADER: 484 symbolTable.insert(COMMON_BUILTINS, new TVariable(NewPoolTString("gl_Position"), TType(EbtFloat, EbpHigh, EvqPosition, 4))); 485 symbolTable.insert(COMMON_BUILTINS, new TVariable(NewPoolTString("gl_PointSize"), TType(EbtFloat, EbpMedium, EvqPointSize, 1))); 486 symbolTable.insert(ESSL3_BUILTINS, new TVariable(NewPoolTString("gl_InstanceID"), TType(EbtInt, EbpHigh, EvqInstanceID, 1))); 487 symbolTable.insert(ESSL3_BUILTINS, new TVariable(NewPoolTString("gl_VertexID"), TType(EbtInt, EbpHigh, EvqVertexID, 1))); 488 break; 489 default: assert(false && "Language not supported"); 490 } 491 492 // Finally add resource-specific variables. 493 switch(shaderType) 494 { 495 case GL_FRAGMENT_SHADER: 496 { 497 // Set up gl_FragData. The array size. 498 TType fragData(EbtFloat, EbpMedium, EvqFragData, 4, 1, true); 499 fragData.setArraySize(resources.MaxDrawBuffers); 500 symbolTable.insert(ESSL1_BUILTINS, new TVariable(NewPoolTString("gl_FragData"), fragData)); 501 } 502 break; 503 default: break; 504 } 505 } 506 507 void InitExtensionBehavior(const ShBuiltInResources& resources, 508 TExtensionBehavior& extBehavior) 509 { 510 if(resources.OES_standard_derivatives) 511 extBehavior["GL_OES_standard_derivatives"] = EBhUndefined; 512 if(resources.OES_fragment_precision_high) 513 extBehavior["GL_FRAGMENT_PRECISION_HIGH"] = EBhUndefined; 514 if(resources.OES_EGL_image_external) 515 extBehavior["GL_OES_EGL_image_external"] = EBhUndefined; 516 if(resources.EXT_draw_buffers) 517 extBehavior["GL_EXT_draw_buffers"] = EBhUndefined; 518 if(resources.ARB_texture_rectangle) 519 extBehavior["GL_ARB_texture_rectangle"] = EBhUndefined; 520 } 521
