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
InsertBuiltInFunctions(GLenum type,const ShBuiltInResources & resources,TSymbolTable & symbolTable)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, EOpStep, genType, "step", genType, genType);
107 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpStep, genType, "step", float1, genType);
108 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpSmoothStep, genType, "smoothstep", genType, genType, genType);
109 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpSmoothStep, genType, "smoothstep", float1, float1, genType);
110
111 TType *outFloat1 = new TType(EbtFloat, EbpUndefined, EvqOut);
112 TType *outFloat2 = new TType(EbtFloat, EbpUndefined, EvqOut, 2);
113 TType *outFloat3 = new TType(EbtFloat, EbpUndefined, EvqOut, 3);
114 TType *outFloat4 = new TType(EbtFloat, EbpUndefined, EvqOut, 4);
115
116 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpModf, float1, "modf", float1, outFloat1);
117 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpModf, float2, "modf", float2, outFloat2);
118 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpModf, float3, "modf", float3, outFloat3);
119 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpModf, float4, "modf", float4, outFloat4);
120
121 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpIsNan, genBType, "isnan", genType);
122 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpIsInf, genBType, "isinf", genType);
123 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpFloatBitsToInt, genIType, "floatBitsToInt", genType);
124 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpFloatBitsToUint, genUType, "floatBitsToUint", genType);
125 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpIntBitsToFloat, genType, "intBitsToFloat", genIType);
126 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpUintBitsToFloat, genType, "uintBitsToFloat", genUType);
127
128 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpPackSnorm2x16, uint1, "packSnorm2x16", float2);
129 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpPackUnorm2x16, uint1, "packUnorm2x16", float2);
130 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpPackHalf2x16, uint1, "packHalf2x16", float2);
131 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpUnpackSnorm2x16, float2, "unpackSnorm2x16", uint1);
132 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpUnpackUnorm2x16, float2, "unpackUnorm2x16", uint1);
133 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpUnpackHalf2x16, float2, "unpackHalf2x16", uint1);
134
135 //
136 // Geometric Functions.
137 //
138 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpLength, float1, "length", genType);
139 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpDistance, float1, "distance", genType, genType);
140 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpDot, float1, "dot", genType, genType);
141 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpCross, float3, "cross", float3, float3);
142 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpNormalize, genType, "normalize", genType);
143 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpFaceForward, genType, "faceforward", genType, genType, genType);
144 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpReflect, genType, "reflect", genType, genType);
145 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpRefract, genType, "refract", genType, genType, float1);
146
147 TType *mat2 = new TType(EbtFloat, 2, 2);
148 TType *mat2x3 = new TType(EbtFloat, 2, 3);
149 TType *mat2x4 = new TType(EbtFloat, 2, 4);
150 TType *mat3x2 = new TType(EbtFloat, 3, 2);
151 TType *mat3 = new TType(EbtFloat, 3, 3);
152 TType *mat3x4 = new TType(EbtFloat, 3, 4);
153 TType *mat4x2 = new TType(EbtFloat, 4, 2);
154 TType *mat4x3 = new TType(EbtFloat, 4, 3);
155 TType *mat4 = new TType(EbtFloat, 4, 4);
156
157 //
158 // Matrix Functions.
159 //
160 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpMul, mat2, "matrixCompMult", mat2, mat2);
161 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpMul, mat3, "matrixCompMult", mat3, mat3);
162 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpMul, mat4, "matrixCompMult", mat4, mat4);
163 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpMul, mat2x3, "matrixCompMult", mat2x3, mat2x3);
164 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpMul, mat3x2, "matrixCompMult", mat3x2, mat3x2);
165 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpMul, mat2x4, "matrixCompMult", mat2x4, mat2x4);
166 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpMul, mat4x2, "matrixCompMult", mat4x2, mat4x2);
167 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpMul, mat3x4, "matrixCompMult", mat3x4, mat3x4);
168 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpMul, mat4x3, "matrixCompMult", mat4x3, mat4x3);
169
170 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpOuterProduct, mat2, "outerProduct", float2, float2);
171 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpOuterProduct, mat3, "outerProduct", float3, float3);
172 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpOuterProduct, mat4, "outerProduct", float4, float4);
173 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpOuterProduct, mat2x3, "outerProduct", float3, float2);
174 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpOuterProduct, mat3x2, "outerProduct", float2, float3);
175 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpOuterProduct, mat2x4, "outerProduct", float4, float2);
176 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpOuterProduct, mat4x2, "outerProduct", float2, float4);
177 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpOuterProduct, mat3x4, "outerProduct", float4, float3);
178 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpOuterProduct, mat4x3, "outerProduct", float3, float4);
179
180 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpTranspose, mat2, "transpose", mat2);
181 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpTranspose, mat3, "transpose", mat3);
182 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpTranspose, mat4, "transpose", mat4);
183 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpTranspose, mat2x3, "transpose", mat3x2);
184 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpTranspose, mat3x2, "transpose", mat2x3);
185 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpTranspose, mat2x4, "transpose", mat4x2);
186 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpTranspose, mat4x2, "transpose", mat2x4);
187 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpTranspose, mat3x4, "transpose", mat4x3);
188 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpTranspose, mat4x3, "transpose", mat3x4);
189
190 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpDeterminant, float1, "determinant", mat2);
191 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpDeterminant, float1, "determinant", mat3);
192 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpDeterminant, float1, "determinant", mat4);
193
194 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpInverse, mat2, "inverse", mat2);
195 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpInverse, mat3, "inverse", mat3);
196 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpInverse, mat4, "inverse", mat4);
197
198
199 TType *bool1 = new TType(EbtBool);
200 TType *vec = new TType(EbtVec);
201 TType *ivec = new TType(EbtIVec);
202 TType *uvec = new TType(EbtUVec);
203 TType *bvec = new TType(EbtBVec);
204
205 //
206 // Vector relational functions.
207 //
208 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpLessThan, bvec, "lessThan", vec, vec);
209 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpLessThan, bvec, "lessThan", ivec, ivec);
210 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpLessThan, bvec, "lessThan", uvec, uvec);
211 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpLessThanEqual, bvec, "lessThanEqual", vec, vec);
212 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpLessThanEqual, bvec, "lessThanEqual", ivec, ivec);
213 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpLessThanEqual, bvec, "lessThanEqual", uvec, uvec);
214 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpGreaterThan, bvec, "greaterThan", vec, vec);
215 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpGreaterThan, bvec, "greaterThan", ivec, ivec);
216 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpGreaterThan, bvec, "greaterThan", uvec, uvec);
217 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpGreaterThanEqual, bvec, "greaterThanEqual", vec, vec);
218 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpGreaterThanEqual, bvec, "greaterThanEqual", ivec, ivec);
219 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpGreaterThanEqual, bvec, "greaterThanEqual", uvec, uvec);
220 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpVectorEqual, bvec, "equal", vec, vec);
221 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpVectorEqual, bvec, "equal", ivec, ivec);
222 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpVectorEqual, bvec, "equal", uvec, uvec);
223 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpVectorEqual, bvec, "equal", bvec, bvec);
224 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpVectorNotEqual, bvec, "notEqual", vec, vec);
225 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpVectorNotEqual, bvec, "notEqual", ivec, ivec);
226 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpVectorNotEqual, bvec, "notEqual", uvec, uvec);
227 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpVectorNotEqual, bvec, "notEqual", bvec, bvec);
228 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpAny, bool1, "any", bvec);
229 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpAll, bool1, "all", bvec);
230 symbolTable.insertBuiltIn(COMMON_BUILTINS, EOpVectorLogicalNot, bvec, "not", bvec);
231
232 TType *sampler2D = new TType(EbtSampler2D);
233 TType *samplerCube = new TType(EbtSamplerCube);
234 TType *sampler3D = new TType(EbtSampler3D);
235
236 //
237 // Texture Functions for GLSL ES 1.0
238 //
239 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2D", sampler2D, float2);
240 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2DProj", sampler2D, float3);
241 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2DProj", sampler2D, float4);
242 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "textureCube", samplerCube, float3);
243 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture3D", sampler3D, float3);
244
245 if(resources.OES_EGL_image_external)
246 {
247 TType *samplerExternalOES = new TType(EbtSamplerExternalOES);
248
249 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2D", samplerExternalOES, float2);
250 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2DProj", samplerExternalOES, float3);
251 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2DProj", samplerExternalOES, float4);
252 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture3D", samplerExternalOES, float3);
253 }
254
255 if(type == GL_FRAGMENT_SHADER)
256 {
257 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2D", sampler2D, float2, float1);
258 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2DProj", sampler2D, float3, float1);
259 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2DProj", sampler2D, float4, float1);
260 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "textureCube", samplerCube, float3, float1);
261
262 if(resources.OES_standard_derivatives)
263 {
264 symbolTable.insertBuiltIn(ESSL1_BUILTINS, EOpDFdx, "GL_OES_standard_derivatives", genType, "dFdx", genType);
265 symbolTable.insertBuiltIn(ESSL1_BUILTINS, EOpDFdy, "GL_OES_standard_derivatives", genType, "dFdy", genType);
266 symbolTable.insertBuiltIn(ESSL1_BUILTINS, EOpFwidth,"GL_OES_standard_derivatives", genType, "fwidth", genType);
267 }
268 }
269
270 if(type == GL_VERTEX_SHADER)
271 {
272 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2DLod", sampler2D, float2, float1);
273 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2DProjLod", sampler2D, float3, float1);
274 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2DProjLod", sampler2D, float4, float1);
275 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "textureCubeLod", samplerCube, float3, float1);
276 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture3DLod", sampler3D, float3, float1);
277 }
278
279 TType *gvec4 = new TType(EbtGVec4);
280
281 TType *gsampler2D = new TType(EbtGSampler2D);
282 TType *gsamplerCube = new TType(EbtGSamplerCube);
283 TType *gsampler3D = new TType(EbtGSampler3D);
284 TType *gsampler2DArray = new TType(EbtGSampler2DArray);
285
286 //
287 // Texture Functions for GLSL ES 3.0
288 //
289 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "texture", gsampler2D, float2);
290 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "texture", gsampler3D, float3);
291 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "texture", gsamplerCube, float3);
292 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "texture", gsampler2DArray, float3);
293 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProj", gsampler2D, float3);
294 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProj", gsampler2D, float4);
295 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProj", gsampler3D, float4);
296 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureLod", gsampler2D, float2, float1);
297 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureLod", gsampler3D, float3, float1);
298 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureLod", gsamplerCube, float3, float1);
299 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureLod", gsampler2DArray, float3, float1);
300
301 if(type == GL_FRAGMENT_SHADER)
302 {
303 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "texture", gsampler2D, float2, float1);
304 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "texture", gsampler3D, float3, float1);
305 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "texture", gsamplerCube, float3, float1);
306 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "texture", gsampler2DArray, float3, float1);
307 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProj", gsampler2D, float3, float1);
308 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProj", gsampler2D, float4, float1);
309 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProj", gsampler3D, float4, float1);
310 }
311
312 TType *sampler2DShadow = new TType(EbtSampler2DShadow);
313 TType *samplerCubeShadow = new TType(EbtSamplerCubeShadow);
314 TType *sampler2DArrayShadow = new TType(EbtSampler2DArrayShadow);
315
316 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "texture", sampler2DShadow, float3);
317 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "texture", samplerCubeShadow, float4);
318 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "texture", sampler2DArrayShadow, float4);
319 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureProj", sampler2DShadow, float4);
320 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureLod", sampler2DShadow, float3, float1);
321
322 if(type == GL_FRAGMENT_SHADER)
323 {
324 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "texture", sampler2DShadow, float3, float1);
325 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "texture", samplerCubeShadow, float4, float1);
326 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureProj", sampler2DShadow, float4, float1);
327 }
328
329 symbolTable.insertBuiltIn(ESSL3_BUILTINS, int2, "textureSize", gsampler2D, int1);
330 symbolTable.insertBuiltIn(ESSL3_BUILTINS, int3, "textureSize", gsampler3D, int1);
331 symbolTable.insertBuiltIn(ESSL3_BUILTINS, int2, "textureSize", gsamplerCube, int1);
332 symbolTable.insertBuiltIn(ESSL3_BUILTINS, int3, "textureSize", gsampler2DArray, int1);
333 symbolTable.insertBuiltIn(ESSL3_BUILTINS, int2, "textureSize", sampler2DShadow, int1);
334 symbolTable.insertBuiltIn(ESSL3_BUILTINS, int2, "textureSize", samplerCubeShadow, int1);
335 symbolTable.insertBuiltIn(ESSL3_BUILTINS, int3, "textureSize", sampler2DArrayShadow, int1);
336
337 if(type == GL_FRAGMENT_SHADER)
338 {
339 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpDFdx, genType, "dFdx", genType);
340 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpDFdy, genType, "dFdy", genType);
341 symbolTable.insertBuiltIn(ESSL3_BUILTINS, EOpFwidth, genType, "fwidth", genType);
342 }
343
344 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureOffset", gsampler2D, float2, int2);
345 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureOffset", gsampler3D, float3, int3);
346 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureOffset", sampler2DShadow, float3, int2);
347 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureOffset", gsampler2DArray, float3, int2);
348
349 if(type == GL_FRAGMENT_SHADER)
350 {
351 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureOffset", gsampler2D, float2, int2, float1);
352 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureOffset", gsampler3D, float3, int3, float1);
353 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureOffset", sampler2DShadow, float3, int2, float1);
354 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureOffset", gsampler2DArray, float3, int2, float1);
355 }
356
357 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjOffset", gsampler2D, float3, int2);
358 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjOffset", gsampler2D, float4, int2);
359 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjOffset", gsampler3D, float4, int3);
360 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureProjOffset", sampler2DShadow, float4, int2);
361
362 if(type == GL_FRAGMENT_SHADER)
363 {
364 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjOffset", gsampler2D, float3, int2, float1);
365 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjOffset", gsampler2D, float4, int2, float1);
366 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjOffset", gsampler3D, float4, int3, float1);
367 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureProjOffset", sampler2DShadow, float4, int2, float1);
368 }
369
370 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureLodOffset", gsampler2D, float2, float1, int2);
371 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureLodOffset", gsampler3D, float3, float1, int3);
372 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureLodOffset", sampler2DShadow, float3, float1, int2);
373 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureLodOffset", gsampler2DArray, float3, float1, int2);
374
375 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjLod", gsampler2D, float3, float1);
376 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjLod", gsampler2D, float4, float1);
377 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjLod", gsampler3D, float4, float1);
378 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureProjLod", sampler2DShadow, float4, float1);
379
380 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjLodOffset", gsampler2D, float3, float1, int2);
381 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjLodOffset", gsampler2D, float4, float1, int2);
382 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjLodOffset", gsampler3D, float4, float1, int3);
383 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureProjLodOffset", sampler2DShadow, float4, float1, int2);
384
385 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "texelFetch", gsampler2D, int2, int1);
386 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "texelFetch", gsampler3D, int3, int1);
387 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "texelFetch", gsampler2DArray, int3, int1);
388
389 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "texelFetchOffset", gsampler2D, int2, int1, int2);
390 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "texelFetchOffset", gsampler3D, int3, int1, int3);
391 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "texelFetchOffset", gsampler2DArray, int3, int1, int2);
392
393 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureGrad", gsampler2D, float2, float2, float2);
394 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureGrad", gsampler3D, float3, float3, float3);
395 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureGrad", gsamplerCube, float3, float3, float3);
396 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureGrad", sampler2DShadow, float3, float2, float2);
397 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureGrad", samplerCubeShadow, float4, float3, float3);
398 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureGrad", gsampler2DArray, float3, float2, float2);
399 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureGrad", sampler2DArrayShadow, float4, float2, float2);
400
401 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureGradOffset", gsampler2D, float2, float2, float2, int2);
402 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureGradOffset", gsampler3D, float3, float3, float3, int3);
403 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureGradOffset", sampler2DShadow, float3, float2, float2, int2);
404 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureGradOffset", gsampler2DArray, float3, float2, float2, int2);
405 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureGradOffset", sampler2DArrayShadow, float4, float2, float2, int2);
406
407 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjGrad", gsampler2D, float3, float2, float2);
408 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjGrad", gsampler2D, float4, float2, float2);
409 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjGrad", gsampler3D, float4, float3, float3);
410 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureProjGrad", sampler2DShadow, float4, float2, float2);
411
412 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjGradOffset", gsampler2D, float3, float2, float2, int2);
413 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjGradOffset", gsampler2D, float4, float2, float2, int2);
414 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjGradOffset", gsampler3D, float4, float3, float3, int3);
415 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureProjGradOffset", sampler2DShadow, float4, float2, float2, int2);
416
417 //
418 // Depth range in window coordinates
419 //
420 TFieldList *fields = NewPoolTFieldList();
421 TSourceLoc zeroSourceLoc = { 0, 0, 0, 0 };
422 TField *near = new TField(new TType(EbtFloat, EbpHigh, EvqGlobal, 1), NewPoolTString("near"), zeroSourceLoc);
423 TField *far = new TField(new TType(EbtFloat, EbpHigh, EvqGlobal, 1), NewPoolTString("far"), zeroSourceLoc);
424 TField *diff = new TField(new TType(EbtFloat, EbpHigh, EvqGlobal, 1), NewPoolTString("diff"), zeroSourceLoc);
425 fields->push_back(near);
426 fields->push_back(far);
427 fields->push_back(diff);
428 TStructure *depthRangeStruct = new TStructure(NewPoolTString("gl_DepthRangeParameters"), fields);
429 TVariable *depthRangeParameters = new TVariable(&depthRangeStruct->name(), depthRangeStruct, true);
430 symbolTable.insert(COMMON_BUILTINS, *depthRangeParameters);
431 TVariable *depthRange = new TVariable(NewPoolTString("gl_DepthRange"), TType(depthRangeStruct));
432 depthRange->setQualifier(EvqUniform);
433 symbolTable.insert(COMMON_BUILTINS, *depthRange);
434
435 //
436 // Implementation dependent built-in constants.
437 //
438 symbolTable.insertConstInt(COMMON_BUILTINS, "gl_MaxVertexAttribs", resources.MaxVertexAttribs);
439 symbolTable.insertConstInt(COMMON_BUILTINS, "gl_MaxVertexUniformVectors", resources.MaxVertexUniformVectors);
440 symbolTable.insertConstInt(COMMON_BUILTINS, "gl_MaxVertexTextureImageUnits", resources.MaxVertexTextureImageUnits);
441 symbolTable.insertConstInt(COMMON_BUILTINS, "gl_MaxCombinedTextureImageUnits", resources.MaxCombinedTextureImageUnits);
442 symbolTable.insertConstInt(COMMON_BUILTINS, "gl_MaxTextureImageUnits", resources.MaxTextureImageUnits);
443 symbolTable.insertConstInt(COMMON_BUILTINS, "gl_MaxFragmentUniformVectors", resources.MaxFragmentUniformVectors);
444 symbolTable.insertConstInt(ESSL1_BUILTINS, "gl_MaxVaryingVectors", resources.MaxVaryingVectors);
445 symbolTable.insertConstInt(ESSL1_BUILTINS, "gl_MaxDrawBuffers", resources.MaxDrawBuffers);
446 symbolTable.insertConstInt(ESSL3_BUILTINS, "gl_MaxVertexOutputVectors", resources.MaxVertexOutputVectors);
447 symbolTable.insertConstInt(ESSL3_BUILTINS, "gl_MaxFragmentInputVectors", resources.MaxFragmentInputVectors);
448 symbolTable.insertConstInt(ESSL3_BUILTINS, "gl_MinProgramTexelOffset", resources.MinProgramTexelOffset);
449 symbolTable.insertConstInt(ESSL3_BUILTINS, "gl_MaxProgramTexelOffset", resources.MaxProgramTexelOffset);
450 }
451
IdentifyBuiltIns(GLenum shaderType,const ShBuiltInResources & resources,TSymbolTable & symbolTable)452 void IdentifyBuiltIns(GLenum shaderType,
453 const ShBuiltInResources &resources,
454 TSymbolTable &symbolTable)
455 {
456 //
457 // First, insert some special built-in variables that are not in
458 // the built-in header files.
459 //
460 switch(shaderType)
461 {
462 case GL_FRAGMENT_SHADER:
463 symbolTable.insert(COMMON_BUILTINS, *new TVariable(NewPoolTString("gl_FragCoord"), TType(EbtFloat, EbpMedium, EvqFragCoord, 4)));
464 symbolTable.insert(COMMON_BUILTINS, *new TVariable(NewPoolTString("gl_FrontFacing"), TType(EbtBool, EbpUndefined, EvqFrontFacing, 1)));
465 symbolTable.insert(COMMON_BUILTINS, *new TVariable(NewPoolTString("gl_PointCoord"), TType(EbtFloat, EbpMedium, EvqPointCoord, 2)));
466 symbolTable.insert(ESSL1_BUILTINS, *new TVariable(NewPoolTString("gl_FragColor"), TType(EbtFloat, EbpMedium, EvqFragColor, 4)));
467 symbolTable.insert(ESSL1_BUILTINS, *new TVariable(NewPoolTString("gl_FragData[gl_MaxDrawBuffers]"), TType(EbtFloat, EbpMedium, EvqFragData, 4)));
468 symbolTable.insert(ESSL3_BUILTINS, *new TVariable(NewPoolTString("gl_FragDepth"), TType(EbtFloat, EbpHigh, EvqFragDepth, 1)));
469 break;
470 case GL_VERTEX_SHADER:
471 symbolTable.insert(COMMON_BUILTINS, *new TVariable(NewPoolTString("gl_Position"), TType(EbtFloat, EbpHigh, EvqPosition, 4)));
472 symbolTable.insert(COMMON_BUILTINS, *new TVariable(NewPoolTString("gl_PointSize"), TType(EbtFloat, EbpMedium, EvqPointSize, 1)));
473 symbolTable.insert(ESSL3_BUILTINS, *new TVariable(NewPoolTString("gl_InstanceID"), TType(EbtInt, EbpHigh, EvqInstanceID, 1)));
474 symbolTable.insert(ESSL3_BUILTINS, *new TVariable(NewPoolTString("gl_VertexID"), TType(EbtInt, EbpHigh, EvqVertexID, 1)));
475 break;
476 default: assert(false && "Language not supported");
477 }
478
479 // Finally add resource-specific variables.
480 switch(shaderType)
481 {
482 case GL_FRAGMENT_SHADER:
483 {
484 // Set up gl_FragData. The array size.
485 TType fragData(EbtFloat, EbpMedium, EvqFragData, 4, 1, true);
486 fragData.setArraySize(resources.MaxDrawBuffers);
487 symbolTable.insert(ESSL1_BUILTINS, *new TVariable(NewPoolTString("gl_FragData"), fragData));
488 }
489 break;
490 default: break;
491 }
492 }
493
InitExtensionBehavior(const ShBuiltInResources & resources,TExtensionBehavior & extBehavior)494 void InitExtensionBehavior(const ShBuiltInResources& resources,
495 TExtensionBehavior& extBehavior)
496 {
497 if(resources.OES_standard_derivatives)
498 extBehavior["GL_OES_standard_derivatives"] = EBhUndefined;
499 if(resources.OES_fragment_precision_high)
500 extBehavior["GL_FRAGMENT_PRECISION_HIGH"] = EBhUndefined;
501 if(resources.OES_EGL_image_external)
502 extBehavior["GL_OES_EGL_image_external"] = EBhUndefined;
503 if(resources.EXT_draw_buffers)
504 extBehavior["GL_EXT_draw_buffers"] = EBhUndefined;
505 }
506