1 /* 2 * Copyright 2016 Google Inc. 3 * 4 * Use of this source code is governed by a BSD-style license that can be 5 * found in the LICENSE file. 6 */ 7 8 #ifndef SKSL_CONTEXT 9 #define SKSL_CONTEXT 10 11 #include "ir/SkSLType.h" 12 #include "ir/SkSLExpression.h" 13 14 namespace SkSL { 15 16 /** 17 * Contains compiler-wide objects, which currently means the core types. 18 */ 19 class Context { 20 public: Context()21 Context() 22 : fInvalid_Type(new Type("<INVALID>")) 23 , fVoid_Type(new Type("void")) 24 , fNull_Type(new Type("null")) 25 , fFloatLiteral_Type(new Type("$floatLiteral", Type::kFloat_NumberKind, 3)) 26 , fIntLiteral_Type(new Type("$intLiteral", Type::kSigned_NumberKind, 1)) 27 , fDouble_Type(new Type("double", Type::kFloat_NumberKind, 6, true)) 28 , fDouble2_Type(new Type("double2", *fDouble_Type, 2)) 29 , fDouble3_Type(new Type("double3", *fDouble_Type, 3)) 30 , fDouble4_Type(new Type("double4", *fDouble_Type, 4)) 31 , fFloat_Type(new Type("float", Type::kFloat_NumberKind, 5, true)) 32 , fFloat2_Type(new Type("float2", *fFloat_Type, 2)) 33 , fFloat3_Type(new Type("float3", *fFloat_Type, 3)) 34 , fFloat4_Type(new Type("float4", *fFloat_Type, 4)) 35 , fHalf_Type(new Type("half", Type::kFloat_NumberKind, 4)) 36 , fHalf2_Type(new Type("half2", *fHalf_Type, 2)) 37 , fHalf3_Type(new Type("half3", *fHalf_Type, 3)) 38 , fHalf4_Type(new Type("half4", *fHalf_Type, 4)) 39 , fUInt_Type(new Type("uint", Type::kUnsigned_NumberKind, 2, true)) 40 , fUInt2_Type(new Type("uint2", *fUInt_Type, 2)) 41 , fUInt3_Type(new Type("uint3", *fUInt_Type, 3)) 42 , fUInt4_Type(new Type("uint4", *fUInt_Type, 4)) 43 , fInt_Type(new Type("int", Type::kSigned_NumberKind, 2, true)) 44 , fInt2_Type(new Type("int2", *fInt_Type, 2)) 45 , fInt3_Type(new Type("int3", *fInt_Type, 3)) 46 , fInt4_Type(new Type("int4", *fInt_Type, 4)) 47 , fUShort_Type(new Type("ushort", Type::kUnsigned_NumberKind, 0)) 48 , fUShort2_Type(new Type("ushort2", *fUShort_Type, 2)) 49 , fUShort3_Type(new Type("ushort3", *fUShort_Type, 3)) 50 , fUShort4_Type(new Type("ushort4", *fUShort_Type, 4)) 51 , fShort_Type(new Type("short", Type::kSigned_NumberKind, 0)) 52 , fShort2_Type(new Type("short2", *fShort_Type, 2)) 53 , fShort3_Type(new Type("short3", *fShort_Type, 3)) 54 , fShort4_Type(new Type("short4", *fShort_Type, 4)) 55 , fUByte_Type(new Type("ubyte", Type::kUnsigned_NumberKind, 0)) 56 , fUByte2_Type(new Type("ubyte2", *fUByte_Type, 2)) 57 , fUByte3_Type(new Type("ubyte3", *fUByte_Type, 3)) 58 , fUByte4_Type(new Type("ubyte4", *fUByte_Type, 4)) 59 , fByte_Type(new Type("byte", Type::kSigned_NumberKind, 0)) 60 , fByte2_Type(new Type("byte2", *fByte_Type, 2)) 61 , fByte3_Type(new Type("byte3", *fByte_Type, 3)) 62 , fByte4_Type(new Type("byte4", *fByte_Type, 4)) 63 , fBool_Type(new Type("bool", Type::kNonnumeric_NumberKind, -1)) 64 , fBool2_Type(new Type("bool2", *fBool_Type, 2)) 65 , fBool3_Type(new Type("bool3", *fBool_Type, 3)) 66 , fBool4_Type(new Type("bool4", *fBool_Type, 4)) 67 , fFloat2x2_Type(new Type("float2x2", *fFloat_Type, 2, 2)) 68 , fFloat2x3_Type(new Type("float2x3", *fFloat_Type, 2, 3)) 69 , fFloat2x4_Type(new Type("float2x4", *fFloat_Type, 2, 4)) 70 , fFloat3x2_Type(new Type("float3x2", *fFloat_Type, 3, 2)) 71 , fFloat3x3_Type(new Type("float3x3", *fFloat_Type, 3, 3)) 72 , fFloat3x4_Type(new Type("float3x4", *fFloat_Type, 3, 4)) 73 , fFloat4x2_Type(new Type("float4x2", *fFloat_Type, 4, 2)) 74 , fFloat4x3_Type(new Type("float4x3", *fFloat_Type, 4, 3)) 75 , fFloat4x4_Type(new Type("float4x4", *fFloat_Type, 4, 4)) 76 , fHalf2x2_Type(new Type("half2x2", *fHalf_Type, 2, 2)) 77 , fHalf2x3_Type(new Type("half2x3", *fHalf_Type, 2, 3)) 78 , fHalf2x4_Type(new Type("half2x4", *fHalf_Type, 2, 4)) 79 , fHalf3x2_Type(new Type("half3x2", *fHalf_Type, 3, 2)) 80 , fHalf3x3_Type(new Type("half3x3", *fHalf_Type, 3, 3)) 81 , fHalf3x4_Type(new Type("half3x4", *fHalf_Type, 3, 4)) 82 , fHalf4x2_Type(new Type("half4x2", *fHalf_Type, 4, 2)) 83 , fHalf4x3_Type(new Type("half4x3", *fHalf_Type, 4, 3)) 84 , fHalf4x4_Type(new Type("half4x4", *fHalf_Type, 4, 4)) 85 , fDouble2x2_Type(new Type("double2x2", *fDouble_Type, 2, 2)) 86 , fDouble2x3_Type(new Type("double2x3", *fDouble_Type, 2, 3)) 87 , fDouble2x4_Type(new Type("double2x4", *fDouble_Type, 2, 4)) 88 , fDouble3x2_Type(new Type("double3x2", *fDouble_Type, 3, 2)) 89 , fDouble3x3_Type(new Type("double3x3", *fDouble_Type, 3, 3)) 90 , fDouble3x4_Type(new Type("double3x4", *fDouble_Type, 3, 4)) 91 , fDouble4x2_Type(new Type("double4x2", *fDouble_Type, 4, 2)) 92 , fDouble4x3_Type(new Type("double4x3", *fDouble_Type, 4, 3)) 93 , fDouble4x4_Type(new Type("double4x4", *fDouble_Type, 4, 4)) 94 , fSampler1D_Type(new Type("sampler1D", SpvDim1D, false, false, false, true)) 95 , fSampler2D_Type(new Type("sampler2D", SpvDim2D, false, false, false, true)) 96 , fSampler3D_Type(new Type("sampler3D", SpvDim3D, false, false, false, true)) 97 , fSamplerExternalOES_Type(new Type("samplerExternalOES", SpvDim2D, false, false, 98 false, true)) 99 , fSamplerCube_Type(new Type("samplerCube", SpvDimCube, false, false, false, true)) 100 , fSampler2DRect_Type(new Type("sampler2DRect", SpvDimRect, false, false, false, true)) 101 , fSampler1DArray_Type(new Type("sampler1DArray")) 102 , fSampler2DArray_Type(new Type("sampler2DArray")) 103 , fSamplerCubeArray_Type(new Type("samplerCubeArray")) 104 , fSamplerBuffer_Type(new Type("samplerBuffer", SpvDimBuffer, false, false, false, 105 true)) 106 , fSampler2DMS_Type(new Type("sampler2DMS")) 107 , fSampler2DMSArray_Type(new Type("sampler2DMSArray")) 108 , fSampler1DShadow_Type(new Type("sampler1DShadow")) 109 , fSampler2DShadow_Type(new Type("sampler2DShadow")) 110 , fSamplerCubeShadow_Type(new Type("samplerCubeShadow")) 111 , fSampler2DRectShadow_Type(new Type("sampler2DRectShadow")) 112 , fSampler1DArrayShadow_Type(new Type("sampler1DArrayShadow")) 113 , fSampler2DArrayShadow_Type(new Type("sampler2DArrayShadow")) 114 , fSamplerCubeArrayShadow_Type(new Type("samplerCubeArrayShadow")) 115 116 // Related to below FIXME, gsampler*s don't currently expand to cover integer case. 117 , fISampler2D_Type(new Type("isampler2D", SpvDim2D, false, false, false, true)) 118 119 // FIXME express these as "gimage2D" that expand to image2D, iimage2D, and uimage2D. 120 , fImage2D_Type(new Type("image2D", SpvDim2D, false, false, false, true)) 121 , fIImage2D_Type(new Type("iimage2D", SpvDim2D, false, false, false, true)) 122 123 // FIXME express these as "gsubpassInput" that expand to subpassInput, isubpassInput, 124 // and usubpassInput. 125 , fSubpassInput_Type(new Type("subpassInput", SpvDimSubpassData, false, false, 126 false, false)) 127 , fSubpassInputMS_Type(new Type("subpassInputMS", SpvDimSubpassData, false, false, 128 true, false)) 129 130 // FIXME figure out what we're supposed to do with the gsampler et al. types) 131 , fGSampler1D_Type(new Type("$gsampler1D", static_type(*fSampler1D_Type))) 132 , fGSampler2D_Type(new Type("$gsampler2D", static_type(*fSampler2D_Type))) 133 , fGSampler3D_Type(new Type("$gsampler3D", static_type(*fSampler3D_Type))) 134 , fGSamplerCube_Type(new Type("$gsamplerCube", static_type(*fSamplerCube_Type))) 135 , fGSampler2DRect_Type(new Type("$gsampler2DRect", static_type(*fSampler2DRect_Type))) 136 , fGSampler1DArray_Type(new Type("$gsampler1DArray", 137 static_type(*fSampler1DArray_Type))) 138 , fGSampler2DArray_Type(new Type("$gsampler2DArray", 139 static_type(*fSampler2DArray_Type))) 140 , fGSamplerCubeArray_Type(new Type("$gsamplerCubeArray", 141 static_type(*fSamplerCubeArray_Type))) 142 , fGSamplerBuffer_Type(new Type("$gsamplerBuffer", static_type(*fSamplerBuffer_Type))) 143 , fGSampler2DMS_Type(new Type("$gsampler2DMS", static_type(*fSampler2DMS_Type))) 144 , fGSampler2DMSArray_Type(new Type("$gsampler2DMSArray", 145 static_type(*fSampler2DMSArray_Type))) 146 , fGSampler2DArrayShadow_Type(new Type("$gsampler2DArrayShadow", 147 static_type(*fSampler2DArrayShadow_Type))) 148 , fGSamplerCubeArrayShadow_Type(new Type("$gsamplerCubeArrayShadow", 149 static_type(*fSamplerCubeArrayShadow_Type))) 150 , fGenType_Type(new Type("$genType", { fFloat_Type.get(), fFloat2_Type.get(), 151 fFloat3_Type.get(), fFloat4_Type.get() })) 152 , fGenHType_Type(new Type("$genHType", { fHalf_Type.get(), fHalf2_Type.get(), 153 fHalf3_Type.get(), fHalf4_Type.get() })) 154 , fGenDType_Type(new Type("$genDType", { fDouble_Type.get(), fDouble2_Type.get(), 155 fDouble3_Type.get(), fDouble4_Type.get() })) 156 , fGenIType_Type(new Type("$genIType", { fInt_Type.get(), fInt2_Type.get(), 157 fInt3_Type.get(), fInt4_Type.get() })) 158 , fGenUType_Type(new Type("$genUType", { fUInt_Type.get(), fUInt2_Type.get(), 159 fUInt3_Type.get(), fUInt4_Type.get() })) 160 , fGenBType_Type(new Type("$genBType", { fBool_Type.get(), fBool2_Type.get(), 161 fBool3_Type.get(), fBool4_Type.get() })) 162 , fMat_Type(new Type("$mat", { fFloat2x2_Type.get(), fFloat2x3_Type.get(), 163 fFloat2x4_Type.get(), fFloat3x2_Type.get(), 164 fFloat3x3_Type.get(), fFloat3x4_Type.get(), 165 fFloat4x2_Type.get(), fFloat4x3_Type.get(), 166 fFloat4x4_Type.get(), fHalf2x2_Type.get(), 167 fHalf2x3_Type.get(), fHalf2x4_Type.get(), 168 fHalf3x2_Type.get(), fHalf3x3_Type.get(), 169 fHalf3x4_Type.get(), fHalf4x2_Type.get(), 170 fHalf4x3_Type.get(), fHalf4x4_Type.get(), 171 fDouble2x2_Type.get(), fDouble2x3_Type.get(), 172 fDouble2x4_Type.get(), fDouble3x2_Type.get(), 173 fDouble3x3_Type.get(), fDouble3x4_Type.get(), 174 fDouble4x2_Type.get(), fDouble4x3_Type.get(), 175 fDouble4x4_Type.get() })) 176 , fVec_Type(new Type("$vec", { fInvalid_Type.get(), fFloat2_Type.get(), 177 fFloat3_Type.get(), fFloat4_Type.get() })) 178 , fGVec_Type(new Type("$gvec")) 179 , fGVec2_Type(new Type("$gfloat2")) 180 , fGVec3_Type(new Type("$gfloat3")) 181 , fGVec4_Type(new Type("$gfloat4", static_type(*fFloat4_Type))) 182 , fHVec_Type(new Type("$hvec", { fInvalid_Type.get(), fHalf2_Type.get(), 183 fHalf3_Type.get(), fHalf4_Type.get() })) 184 , fDVec_Type(new Type("$dvec", { fInvalid_Type.get(), fDouble2_Type.get(), 185 fDouble3_Type.get(), fDouble4_Type.get() })) 186 , fIVec_Type(new Type("$ivec", { fInvalid_Type.get(), fInt2_Type.get(), 187 fInt3_Type.get(), fInt4_Type.get() })) 188 , fUVec_Type(new Type("$uvec", { fInvalid_Type.get(), fUInt2_Type.get(), 189 fUInt3_Type.get(), fUInt4_Type.get() })) 190 , fSVec_Type(new Type("$svec", { fInvalid_Type.get(), fShort2_Type.get(), 191 fShort3_Type.get(), fShort4_Type.get() })) 192 , fUSVec_Type(new Type("$usvec", { fInvalid_Type.get(), fUShort2_Type.get(), 193 fUShort3_Type.get(), fUShort4_Type.get() })) 194 , fByteVec_Type(new Type("$bytevec", { fInvalid_Type.get(), fByte2_Type.get(), 195 fByte3_Type.get(), fByte4_Type.get() })) 196 , fUByteVec_Type(new Type("$ubytevec", { fInvalid_Type.get(), fUByte2_Type.get(), 197 fUByte3_Type.get(), fUByte4_Type.get() })) 198 , fBVec_Type(new Type("$bvec", { fInvalid_Type.get(), fBool2_Type.get(), 199 fBool3_Type.get(), fBool4_Type.get() })) 200 , fSkCaps_Type(new Type("$sk_Caps")) 201 , fSkArgs_Type(new Type("$sk_Args")) 202 , fFragmentProcessor_Type(fp_type(fInt_Type.get(), fBool_Type.get())) 203 , fSkRasterPipeline_Type(new Type("SkRasterPipeline")) 204 , fDefined_Expression(new Defined(*fInvalid_Type)) {} 205 static_type(const Type & t)206 static std::vector<const Type*> static_type(const Type& t) { 207 return { &t, &t, &t, &t }; 208 } 209 210 const std::unique_ptr<Type> fInvalid_Type; 211 const std::unique_ptr<Type> fVoid_Type; 212 const std::unique_ptr<Type> fNull_Type; 213 const std::unique_ptr<Type> fFloatLiteral_Type; 214 const std::unique_ptr<Type> fIntLiteral_Type; 215 216 const std::unique_ptr<Type> fDouble_Type; 217 const std::unique_ptr<Type> fDouble2_Type; 218 const std::unique_ptr<Type> fDouble3_Type; 219 const std::unique_ptr<Type> fDouble4_Type; 220 221 const std::unique_ptr<Type> fFloat_Type; 222 const std::unique_ptr<Type> fFloat2_Type; 223 const std::unique_ptr<Type> fFloat3_Type; 224 const std::unique_ptr<Type> fFloat4_Type; 225 226 const std::unique_ptr<Type> fHalf_Type; 227 const std::unique_ptr<Type> fHalf2_Type; 228 const std::unique_ptr<Type> fHalf3_Type; 229 const std::unique_ptr<Type> fHalf4_Type; 230 231 const std::unique_ptr<Type> fUInt_Type; 232 const std::unique_ptr<Type> fUInt2_Type; 233 const std::unique_ptr<Type> fUInt3_Type; 234 const std::unique_ptr<Type> fUInt4_Type; 235 236 const std::unique_ptr<Type> fInt_Type; 237 const std::unique_ptr<Type> fInt2_Type; 238 const std::unique_ptr<Type> fInt3_Type; 239 const std::unique_ptr<Type> fInt4_Type; 240 241 const std::unique_ptr<Type> fUShort_Type; 242 const std::unique_ptr<Type> fUShort2_Type; 243 const std::unique_ptr<Type> fUShort3_Type; 244 const std::unique_ptr<Type> fUShort4_Type; 245 246 const std::unique_ptr<Type> fShort_Type; 247 const std::unique_ptr<Type> fShort2_Type; 248 const std::unique_ptr<Type> fShort3_Type; 249 const std::unique_ptr<Type> fShort4_Type; 250 251 const std::unique_ptr<Type> fUByte_Type; 252 const std::unique_ptr<Type> fUByte2_Type; 253 const std::unique_ptr<Type> fUByte3_Type; 254 const std::unique_ptr<Type> fUByte4_Type; 255 256 const std::unique_ptr<Type> fByte_Type; 257 const std::unique_ptr<Type> fByte2_Type; 258 const std::unique_ptr<Type> fByte3_Type; 259 const std::unique_ptr<Type> fByte4_Type; 260 261 const std::unique_ptr<Type> fBool_Type; 262 const std::unique_ptr<Type> fBool2_Type; 263 const std::unique_ptr<Type> fBool3_Type; 264 const std::unique_ptr<Type> fBool4_Type; 265 266 const std::unique_ptr<Type> fFloat2x2_Type; 267 const std::unique_ptr<Type> fFloat2x3_Type; 268 const std::unique_ptr<Type> fFloat2x4_Type; 269 const std::unique_ptr<Type> fFloat3x2_Type; 270 const std::unique_ptr<Type> fFloat3x3_Type; 271 const std::unique_ptr<Type> fFloat3x4_Type; 272 const std::unique_ptr<Type> fFloat4x2_Type; 273 const std::unique_ptr<Type> fFloat4x3_Type; 274 const std::unique_ptr<Type> fFloat4x4_Type; 275 276 const std::unique_ptr<Type> fHalf2x2_Type; 277 const std::unique_ptr<Type> fHalf2x3_Type; 278 const std::unique_ptr<Type> fHalf2x4_Type; 279 const std::unique_ptr<Type> fHalf3x2_Type; 280 const std::unique_ptr<Type> fHalf3x3_Type; 281 const std::unique_ptr<Type> fHalf3x4_Type; 282 const std::unique_ptr<Type> fHalf4x2_Type; 283 const std::unique_ptr<Type> fHalf4x3_Type; 284 const std::unique_ptr<Type> fHalf4x4_Type; 285 286 const std::unique_ptr<Type> fDouble2x2_Type; 287 const std::unique_ptr<Type> fDouble2x3_Type; 288 const std::unique_ptr<Type> fDouble2x4_Type; 289 const std::unique_ptr<Type> fDouble3x2_Type; 290 const std::unique_ptr<Type> fDouble3x3_Type; 291 const std::unique_ptr<Type> fDouble3x4_Type; 292 const std::unique_ptr<Type> fDouble4x2_Type; 293 const std::unique_ptr<Type> fDouble4x3_Type; 294 const std::unique_ptr<Type> fDouble4x4_Type; 295 296 const std::unique_ptr<Type> fSampler1D_Type; 297 const std::unique_ptr<Type> fSampler2D_Type; 298 const std::unique_ptr<Type> fSampler3D_Type; 299 const std::unique_ptr<Type> fSamplerExternalOES_Type; 300 const std::unique_ptr<Type> fSamplerCube_Type; 301 const std::unique_ptr<Type> fSampler2DRect_Type; 302 const std::unique_ptr<Type> fSampler1DArray_Type; 303 const std::unique_ptr<Type> fSampler2DArray_Type; 304 const std::unique_ptr<Type> fSamplerCubeArray_Type; 305 const std::unique_ptr<Type> fSamplerBuffer_Type; 306 const std::unique_ptr<Type> fSampler2DMS_Type; 307 const std::unique_ptr<Type> fSampler2DMSArray_Type; 308 const std::unique_ptr<Type> fSampler1DShadow_Type; 309 const std::unique_ptr<Type> fSampler2DShadow_Type; 310 const std::unique_ptr<Type> fSamplerCubeShadow_Type; 311 const std::unique_ptr<Type> fSampler2DRectShadow_Type; 312 const std::unique_ptr<Type> fSampler1DArrayShadow_Type; 313 const std::unique_ptr<Type> fSampler2DArrayShadow_Type; 314 const std::unique_ptr<Type> fSamplerCubeArrayShadow_Type; 315 316 const std::unique_ptr<Type> fISampler2D_Type; 317 318 const std::unique_ptr<Type> fImage2D_Type; 319 const std::unique_ptr<Type> fIImage2D_Type; 320 321 const std::unique_ptr<Type> fSubpassInput_Type; 322 const std::unique_ptr<Type> fSubpassInputMS_Type; 323 324 const std::unique_ptr<Type> fGSampler1D_Type; 325 const std::unique_ptr<Type> fGSampler2D_Type; 326 const std::unique_ptr<Type> fGSampler3D_Type; 327 const std::unique_ptr<Type> fGSamplerCube_Type; 328 const std::unique_ptr<Type> fGSampler2DRect_Type; 329 const std::unique_ptr<Type> fGSampler1DArray_Type; 330 const std::unique_ptr<Type> fGSampler2DArray_Type; 331 const std::unique_ptr<Type> fGSamplerCubeArray_Type; 332 const std::unique_ptr<Type> fGSamplerBuffer_Type; 333 const std::unique_ptr<Type> fGSampler2DMS_Type; 334 const std::unique_ptr<Type> fGSampler2DMSArray_Type; 335 const std::unique_ptr<Type> fGSampler2DArrayShadow_Type; 336 const std::unique_ptr<Type> fGSamplerCubeArrayShadow_Type; 337 338 const std::unique_ptr<Type> fGenType_Type; 339 const std::unique_ptr<Type> fGenHType_Type; 340 const std::unique_ptr<Type> fGenDType_Type; 341 const std::unique_ptr<Type> fGenIType_Type; 342 const std::unique_ptr<Type> fGenUType_Type; 343 const std::unique_ptr<Type> fGenBType_Type; 344 345 const std::unique_ptr<Type> fMat_Type; 346 347 const std::unique_ptr<Type> fVec_Type; 348 349 const std::unique_ptr<Type> fGVec_Type; 350 const std::unique_ptr<Type> fGVec2_Type; 351 const std::unique_ptr<Type> fGVec3_Type; 352 const std::unique_ptr<Type> fGVec4_Type; 353 const std::unique_ptr<Type> fHVec_Type; 354 const std::unique_ptr<Type> fDVec_Type; 355 const std::unique_ptr<Type> fIVec_Type; 356 const std::unique_ptr<Type> fUVec_Type; 357 const std::unique_ptr<Type> fSVec_Type; 358 const std::unique_ptr<Type> fUSVec_Type; 359 const std::unique_ptr<Type> fByteVec_Type; 360 const std::unique_ptr<Type> fUByteVec_Type; 361 362 const std::unique_ptr<Type> fBVec_Type; 363 364 const std::unique_ptr<Type> fSkCaps_Type; 365 const std::unique_ptr<Type> fSkArgs_Type; 366 const std::unique_ptr<Type> fFragmentProcessor_Type; 367 const std::unique_ptr<Type> fSkRasterPipeline_Type; 368 369 // dummy expression used to mark that a variable has a value during dataflow analysis (when it 370 // could have several different values, or the analyzer is otherwise unable to assign it a 371 // specific expression) 372 const std::unique_ptr<Expression> fDefined_Expression; 373 374 private: 375 class Defined : public Expression { 376 public: Defined(const Type & type)377 Defined(const Type& type) 378 : INHERITED(-1, kDefined_Kind, type) {} 379 hasSideEffects()380 bool hasSideEffects() const override { 381 return false; 382 } 383 description()384 String description() const override { 385 return "<defined>"; 386 } 387 clone()388 std::unique_ptr<Expression> clone() const override { 389 return std::unique_ptr<Expression>(new Defined(fType)); 390 } 391 392 typedef Expression INHERITED; 393 }; 394 fp_type(const Type * intType,const Type * boolType)395 static std::unique_ptr<Type> fp_type(const Type* intType, const Type* boolType) { 396 // Build fields for FragmentProcessors, which should parallel the 397 // C++ API for GrFragmentProcessor. 398 Modifiers mods(Layout(), Modifiers::kConst_Flag); 399 std::vector<Type::Field> fields = { 400 Type::Field(mods, "numTextureSamplers", intType), 401 Type::Field(mods, "numCoordTransforms", intType), 402 Type::Field(mods, "numChildProcessors", intType), 403 Type::Field(mods, "usesLocalCoords", boolType), 404 Type::Field(mods, "compatibleWithCoverageAsAlpha", boolType), 405 Type::Field(mods, "preservesOpaqueInput", boolType), 406 Type::Field(mods, "hasConstantOutputForConstantInput", boolType) 407 }; 408 return std::unique_ptr<Type>(new Type("fragmentProcessor", fields)); 409 } 410 }; 411 412 } // namespace 413 414 #endif 415