1 //
2 // Copyright (c) 2002-2014 The ANGLE Project Authors. All rights reserved.
3 // Use of this source code is governed by a BSD-style license that can be
4 // found in the LICENSE file.
5 //
6
7 //
8 // Create symbols that declare built-in definitions, add built-ins that
9 // cannot be expressed in the files, and establish mappings between
10 // built-in functions and operators.
11 //
12
13 #include "compiler/translator/Initialize.h"
14
15 #include "compiler/translator/intermediate.h"
16
InsertBuiltInFunctions(ShShaderType type,ShShaderSpec spec,const ShBuiltInResources & resources,TSymbolTable & symbolTable)17 void InsertBuiltInFunctions(ShShaderType type, ShShaderSpec spec, const ShBuiltInResources &resources, TSymbolTable &symbolTable)
18 {
19 TType *float1 = new TType(EbtFloat);
20 TType *float2 = new TType(EbtFloat, 2);
21 TType *float3 = new TType(EbtFloat, 3);
22 TType *float4 = new TType(EbtFloat, 4);
23
24 TType *int1 = new TType(EbtInt);
25 TType *int2 = new TType(EbtInt, 2);
26 TType *int3 = new TType(EbtInt, 3);
27 TType *int4 = new TType(EbtInt, 4);
28
29 //
30 // Angle and Trigonometric Functions.
31 //
32 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "radians", float1);
33 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "radians", float2);
34 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "radians", float3);
35 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "radians", float4);
36
37 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "degrees", float1);
38 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "degrees", float2);
39 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "degrees", float3);
40 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "degrees", float4);
41
42 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "sin", float1);
43 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "sin", float2);
44 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "sin", float3);
45 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "sin", float4);
46
47 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "cos", float1);
48 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "cos", float2);
49 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "cos", float3);
50 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "cos", float4);
51
52 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "tan", float1);
53 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "tan", float2);
54 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "tan", float3);
55 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "tan", float4);
56
57 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "asin", float1);
58 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "asin", float2);
59 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "asin", float3);
60 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "asin", float4);
61
62 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "acos", float1);
63 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "acos", float2);
64 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "acos", float3);
65 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "acos", float4);
66
67 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "atan", float1, float1);
68 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "atan", float2, float2);
69 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "atan", float3, float3);
70 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "atan", float4, float4);
71
72 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "atan", float1);
73 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "atan", float2);
74 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "atan", float3);
75 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "atan", float4);
76
77 //
78 // Exponential Functions.
79 //
80 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "pow", float1, float1);
81 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "pow", float2, float2);
82 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "pow", float3, float3);
83 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "pow", float4, float4);
84
85 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "exp", float1);
86 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "exp", float2);
87 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "exp", float3);
88 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "exp", float4);
89
90 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "log", float1);
91 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "log", float2);
92 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "log", float3);
93 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "log", float4);
94
95 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "exp2", float1);
96 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "exp2", float2);
97 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "exp2", float3);
98 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "exp2", float4);
99
100 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "log2", float1);
101 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "log2", float2);
102 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "log2", float3);
103 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "log2", float4);
104
105 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "sqrt", float1);
106 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "sqrt", float2);
107 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "sqrt", float3);
108 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "sqrt", float4);
109
110 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "inversesqrt", float1);
111 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "inversesqrt", float2);
112 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "inversesqrt", float3);
113 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "inversesqrt", float4);
114
115 //
116 // Common Functions.
117 //
118 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "abs", float1);
119 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "abs", float2);
120 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "abs", float3);
121 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "abs", float4);
122
123 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "sign", float1);
124 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "sign", float2);
125 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "sign", float3);
126 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "sign", float4);
127
128 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "floor", float1);
129 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "floor", float2);
130 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "floor", float3);
131 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "floor", float4);
132
133 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "ceil", float1);
134 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "ceil", float2);
135 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "ceil", float3);
136 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "ceil", float4);
137
138 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "fract", float1);
139 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "fract", float2);
140 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "fract", float3);
141 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "fract", float4);
142
143 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "mod", float1, float1);
144 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "mod", float2, float1);
145 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "mod", float3, float1);
146 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "mod", float4, float1);
147 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "mod", float2, float2);
148 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "mod", float3, float3);
149 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "mod", float4, float4);
150
151 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "min", float1, float1);
152 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "min", float2, float1);
153 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "min", float3, float1);
154 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "min", float4, float1);
155 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "min", float2, float2);
156 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "min", float3, float3);
157 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "min", float4, float4);
158
159 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "max", float1, float1);
160 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "max", float2, float1);
161 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "max", float3, float1);
162 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "max", float4, float1);
163 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "max", float2, float2);
164 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "max", float3, float3);
165 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "max", float4, float4);
166
167 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "clamp", float1, float1, float1);
168 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "clamp", float2, float1, float1);
169 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "clamp", float3, float1, float1);
170 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "clamp", float4, float1, float1);
171 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "clamp", float2, float2, float2);
172 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "clamp", float3, float3, float3);
173 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "clamp", float4, float4, float4);
174
175 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "mix", float1, float1, float1);
176 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "mix", float2, float2, float1);
177 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "mix", float3, float3, float1);
178 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "mix", float4, float4, float1);
179 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "mix", float2, float2, float2);
180 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "mix", float3, float3, float3);
181 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "mix", float4, float4, float4);
182
183 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "step", float1, float1);
184 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "step", float2, float2);
185 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "step", float3, float3);
186 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "step", float4, float4);
187 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "step", float1, float2);
188 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "step", float1, float3);
189 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "step", float1, float4);
190
191 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "smoothstep", float1, float1, float1);
192 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "smoothstep", float2, float2, float2);
193 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "smoothstep", float3, float3, float3);
194 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "smoothstep", float4, float4, float4);
195 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "smoothstep", float1, float1, float2);
196 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "smoothstep", float1, float1, float3);
197 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "smoothstep", float1, float1, float4);
198
199 //
200 // Geometric Functions.
201 //
202 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "length", float1);
203 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "length", float2);
204 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "length", float3);
205 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "length", float4);
206
207 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "distance", float1, float1);
208 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "distance", float2, float2);
209 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "distance", float3, float3);
210 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "distance", float4, float4);
211
212 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "dot", float1, float1);
213 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "dot", float2, float2);
214 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "dot", float3, float3);
215 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "dot", float4, float4);
216
217 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "cross", float3, float3);
218 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "normalize", float1);
219 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "normalize", float2);
220 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "normalize", float3);
221 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "normalize", float4);
222
223 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "faceforward", float1, float1, float1);
224 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "faceforward", float2, float2, float2);
225 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "faceforward", float3, float3, float3);
226 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "faceforward", float4, float4, float4);
227
228 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "reflect", float1, float1);
229 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "reflect", float2, float2);
230 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "reflect", float3, float3);
231 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "reflect", float4, float4);
232
233 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "refract", float1, float1, float1);
234 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "refract", float2, float2, float1);
235 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "refract", float3, float3, float1);
236 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "refract", float4, float4, float1);
237
238 TType *mat2 = new TType(EbtFloat, 2, 2);
239 TType *mat3 = new TType(EbtFloat, 3, 3);
240 TType *mat4 = new TType(EbtFloat, 4, 4);
241
242 //
243 // Matrix Functions.
244 //
245 symbolTable.insertBuiltIn(COMMON_BUILTINS, mat2, "matrixCompMult", mat2, mat2);
246 symbolTable.insertBuiltIn(COMMON_BUILTINS, mat3, "matrixCompMult", mat3, mat3);
247 symbolTable.insertBuiltIn(COMMON_BUILTINS, mat4, "matrixCompMult", mat4, mat4);
248
249 TType *bool1 = new TType(EbtBool);
250 TType *bool2 = new TType(EbtBool, 2);
251 TType *bool3 = new TType(EbtBool, 3);
252 TType *bool4 = new TType(EbtBool, 4);
253
254 //
255 // Vector relational functions.
256 //
257 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool2, "lessThan", float2, float2);
258 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool3, "lessThan", float3, float3);
259 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool4, "lessThan", float4, float4);
260
261 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool2, "lessThan", int2, int2);
262 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool3, "lessThan", int3, int3);
263 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool4, "lessThan", int4, int4);
264
265 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool2, "lessThanEqual", float2, float2);
266 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool3, "lessThanEqual", float3, float3);
267 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool4, "lessThanEqual", float4, float4);
268
269 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool2, "lessThanEqual", int2, int2);
270 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool3, "lessThanEqual", int3, int3);
271 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool4, "lessThanEqual", int4, int4);
272
273 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool2, "greaterThan", float2, float2);
274 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool3, "greaterThan", float3, float3);
275 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool4, "greaterThan", float4, float4);
276
277 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool2, "greaterThan", int2, int2);
278 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool3, "greaterThan", int3, int3);
279 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool4, "greaterThan", int4, int4);
280
281 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool2, "greaterThanEqual", float2, float2);
282 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool3, "greaterThanEqual", float3, float3);
283 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool4, "greaterThanEqual", float4, float4);
284
285 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool2, "greaterThanEqual", int2, int2);
286 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool3, "greaterThanEqual", int3, int3);
287 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool4, "greaterThanEqual", int4, int4);
288
289 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool2, "equal", float2, float2);
290 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool3, "equal", float3, float3);
291 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool4, "equal", float4, float4);
292
293 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool2, "equal", int2, int2);
294 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool3, "equal", int3, int3);
295 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool4, "equal", int4, int4);
296
297 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool2, "equal", bool2, bool2);
298 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool3, "equal", bool3, bool3);
299 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool4, "equal", bool4, bool4);
300
301 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool2, "notEqual", float2, float2);
302 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool3, "notEqual", float3, float3);
303 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool4, "notEqual", float4, float4);
304
305 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool2, "notEqual", int2, int2);
306 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool3, "notEqual", int3, int3);
307 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool4, "notEqual", int4, int4);
308
309 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool2, "notEqual", bool2, bool2);
310 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool3, "notEqual", bool3, bool3);
311 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool4, "notEqual", bool4, bool4);
312
313 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool1, "any", bool2);
314 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool1, "any", bool3);
315 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool1, "any", bool4);
316
317 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool1, "all", bool2);
318 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool1, "all", bool3);
319 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool1, "all", bool4);
320
321 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool2, "not", bool2);
322 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool3, "not", bool3);
323 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool4, "not", bool4);
324
325 TType *sampler2D = new TType(EbtSampler2D);
326 TType *samplerCube = new TType(EbtSamplerCube);
327
328 //
329 // Texture Functions for GLSL ES 1.0
330 //
331 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2D", sampler2D, float2);
332 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2DProj", sampler2D, float3);
333 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2DProj", sampler2D, float4);
334 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "textureCube", samplerCube, float3);
335
336 if (resources.OES_EGL_image_external)
337 {
338 TType *samplerExternalOES = new TType(EbtSamplerExternalOES);
339
340 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2D", samplerExternalOES, float2);
341 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2DProj", samplerExternalOES, float3);
342 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2DProj", samplerExternalOES, float4);
343 }
344
345 if (resources.ARB_texture_rectangle)
346 {
347 TType *sampler2DRect = new TType(EbtSampler2DRect);
348
349 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2DRect", sampler2DRect, float2);
350 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2DRectProj", sampler2DRect, float3);
351 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2DRectProj", sampler2DRect, float4);
352 }
353
354 if (resources.EXT_shader_texture_lod)
355 {
356 /* The *Grad* variants are new to both vertex and fragment shaders; the fragment
357 * shader specific pieces are added separately below.
358 */
359 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2DGradEXT", sampler2D, float2, float2, float2);
360 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2DProjGradEXT", sampler2D, float3, float2, float2);
361 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2DProjGradEXT", sampler2D, float4, float2, float2);
362 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "textureCubeGradEXT", samplerCube, float3, float3, float3);
363 }
364
365 if (type == SH_FRAGMENT_SHADER)
366 {
367 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2D", sampler2D, float2, float1);
368 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2DProj", sampler2D, float3, float1);
369 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2DProj", sampler2D, float4, float1);
370 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "textureCube", samplerCube, float3, float1);
371
372 if (resources.OES_standard_derivatives)
373 {
374 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float1, "dFdx", float1);
375 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float2, "dFdx", float2);
376 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float3, "dFdx", float3);
377 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "dFdx", float4);
378
379 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float1, "dFdy", float1);
380 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float2, "dFdy", float2);
381 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float3, "dFdy", float3);
382 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "dFdy", float4);
383
384 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float1, "fwidth", float1);
385 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float2, "fwidth", float2);
386 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float3, "fwidth", float3);
387 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "fwidth", float4);
388 }
389
390 if (resources.EXT_shader_texture_lod)
391 {
392 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2DLodEXT", sampler2D, float2, float1);
393 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2DProjLodEXT", sampler2D, float3, float1);
394 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2DProjLodEXT", sampler2D, float4, float1);
395 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "textureCubeLodEXT", samplerCube, float3, float1);
396 }
397 }
398
399 if(type == SH_VERTEX_SHADER)
400 {
401 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2DLod", sampler2D, float2, float1);
402 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2DProjLod", sampler2D, float3, float1);
403 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2DProjLod", sampler2D, float4, float1);
404 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "textureCubeLod", samplerCube, float3, float1);
405 }
406
407 TType *gvec4 = new TType(EbtGVec4);
408
409 TType *gsampler2D = new TType(EbtGSampler2D);
410 TType *gsamplerCube = new TType(EbtGSamplerCube);
411 TType *gsampler3D = new TType(EbtGSampler3D);
412 TType *gsampler2DArray = new TType(EbtGSampler2DArray);
413
414 //
415 // Texture Functions for GLSL ES 3.0
416 //
417 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "texture", gsampler2D, float2);
418 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "texture", gsampler3D, float3);
419 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "texture", gsamplerCube, float3);
420 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "texture", gsampler2DArray, float3);
421 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProj", gsampler2D, float3);
422 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProj", gsampler2D, float4);
423 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProj", gsampler3D, float4);
424 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureLod", gsampler2D, float2, float1);
425 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureLod", gsampler3D, float3, float1);
426 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureLod", gsamplerCube, float3, float1);
427 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureLod", gsampler2DArray, float3, float1);
428
429 if (type == SH_FRAGMENT_SHADER)
430 {
431 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "texture", gsampler2D, float2, float1);
432 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "texture", gsampler3D, float3, float1);
433 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "texture", gsamplerCube, float3, float1);
434 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "texture", gsampler2DArray, float3, float1);
435 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProj", gsampler2D, float3, float1);
436 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProj", gsampler2D, float4, float1);
437 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProj", gsampler3D, float4, float1);
438 }
439
440 TType *sampler2DShadow = new TType(EbtSampler2DShadow);
441 TType *samplerCubeShadow = new TType(EbtSamplerCubeShadow);
442 TType *sampler2DArrayShadow = new TType(EbtSampler2DArrayShadow);
443
444 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "texture", sampler2DShadow, float3);
445 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "texture", samplerCubeShadow, float4);
446 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "texture", sampler2DArrayShadow, float4);
447 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureProj", sampler2DShadow, float4);
448 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureLod", sampler2DShadow, float3, float1);
449
450 if (type == SH_FRAGMENT_SHADER)
451 {
452 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "texture", sampler2DShadow, float3, float1);
453 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "texture", samplerCubeShadow, float4, float1);
454 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureProj", sampler2DShadow, float4, float1);
455 }
456
457 symbolTable.insertBuiltIn(ESSL3_BUILTINS, int2, "textureSize", gsampler2D, int1);
458 symbolTable.insertBuiltIn(ESSL3_BUILTINS, int3, "textureSize", gsampler3D, int1);
459 symbolTable.insertBuiltIn(ESSL3_BUILTINS, int2, "textureSize", gsamplerCube, int1);
460 symbolTable.insertBuiltIn(ESSL3_BUILTINS, int3, "textureSize", gsampler2DArray, int1);
461 symbolTable.insertBuiltIn(ESSL3_BUILTINS, int2, "textureSize", sampler2DShadow, int1);
462 symbolTable.insertBuiltIn(ESSL3_BUILTINS, int2, "textureSize", samplerCubeShadow, int1);
463 symbolTable.insertBuiltIn(ESSL3_BUILTINS, int3, "textureSize", sampler2DArrayShadow, int1);
464
465 if(type == SH_FRAGMENT_SHADER)
466 {
467 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "dFdx", float1);
468 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float2, "dFdx", float2);
469 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float3, "dFdx", float3);
470 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float4, "dFdx", float4);
471
472 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "dFdy", float1);
473 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float2, "dFdy", float2);
474 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float3, "dFdy", float3);
475 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float4, "dFdy", float4);
476
477 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "fwidth", float1);
478 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float2, "fwidth", float2);
479 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float3, "fwidth", float3);
480 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float4, "fwidth", float4);
481 }
482
483 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureOffset", gsampler2D, float2, int2);
484 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureOffset", gsampler3D, float3, int3);
485 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureOffset", sampler2DShadow, float3, int2);
486 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureOffset", gsampler2DArray, float3, int2);
487
488 if(type == SH_FRAGMENT_SHADER)
489 {
490 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureOffset", gsampler2D, float2, int2, float1);
491 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureOffset", gsampler3D, float3, int3, float1);
492 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureOffset", sampler2DShadow, float3, int2, float1);
493 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureOffset", gsampler2DArray, float3, int2, float1);
494 }
495
496 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjOffset", gsampler2D, float3, int2);
497 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjOffset", gsampler2D, float4, int2);
498 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjOffset", gsampler3D, float4, int3);
499 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureProjOffset", sampler2DShadow, float4, int2);
500
501 if(type == SH_FRAGMENT_SHADER)
502 {
503 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjOffset", gsampler2D, float3, int2, float1);
504 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjOffset", gsampler2D, float4, int2, float1);
505 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjOffset", gsampler3D, float4, int3, float1);
506 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureProjOffset", sampler2DShadow, float4, int2, float1);
507 }
508
509 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureLodOffset", gsampler2D, float2, float1, int2);
510 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureLodOffset", gsampler3D, float3, float1, int3);
511 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureLodOffset", sampler2DShadow, float3, float1, int2);
512 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureLodOffset", gsampler2DArray, float3, float1, int2);
513
514 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjLod", gsampler2D, float3, float1);
515 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjLod", gsampler2D, float4, float1);
516 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjLod", gsampler3D, float4, float1);
517 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureProjLod", sampler2DShadow, float4, float1);
518
519 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjLodOffset", gsampler2D, float3, float1, int2);
520 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjLodOffset", gsampler2D, float4, float1, int2);
521 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjLodOffset", gsampler3D, float4, float1, int3);
522 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureProjLodOffset", sampler2DShadow, float4, float1, int2);
523
524 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "texelFetch", gsampler2D, int2, int1);
525 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "texelFetch", gsampler3D, int3, int1);
526 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "texelFetch", gsampler2DArray, int3, int1);
527
528 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "texelFetchOffset", gsampler2D, int2, int1, int2);
529 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "texelFetchOffset", gsampler3D, int3, int1, int3);
530 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "texelFetchOffset", gsampler2DArray, int3, int1, int2);
531
532 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureGrad", gsampler2D, float2, float2, float2);
533 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureGrad", gsampler3D, float3, float3, float3);
534 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureGrad", gsamplerCube, float3, float3, float3);
535 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureGrad", sampler2DShadow, float3, float2, float2);
536 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureGrad", samplerCubeShadow, float4, float3, float3);
537 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureGrad", gsampler2DArray, float3, float2, float2);
538 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureGrad", sampler2DArrayShadow, float4, float2, float2);
539
540 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureGradOffset", gsampler2D, float2, float2, float2, int2);
541 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureGradOffset", gsampler3D, float3, float3, float3, int3);
542 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureGradOffset", sampler2DShadow, float3, float2, float2, int2);
543 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureGradOffset", gsampler2DArray, float3, float2, float2, int2);
544 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureGradOffset", sampler2DArrayShadow, float4, float2, float2, int2);
545
546 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjGrad", gsampler2D, float3, float2, float2);
547 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjGrad", gsampler2D, float4, float2, float2);
548 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjGrad", gsampler3D, float4, float3, float3);
549 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureProjGrad", sampler2DShadow, float4, float2, float2);
550
551 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjGradOffset", gsampler2D, float3, float2, float2, int2);
552 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjGradOffset", gsampler2D, float4, float2, float2, int2);
553 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjGradOffset", gsampler3D, float4, float3, float3, int3);
554 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureProjGradOffset", sampler2DShadow, float4, float2, float2, int2);
555
556 //
557 // Depth range in window coordinates
558 //
559 TFieldList *fields = NewPoolTFieldList();
560 TSourceLoc zeroSourceLoc = {0, 0, 0, 0};
561 TField *near = new TField(new TType(EbtFloat, EbpHigh, EvqGlobal, 1), NewPoolTString("near"), zeroSourceLoc);
562 TField *far = new TField(new TType(EbtFloat, EbpHigh, EvqGlobal, 1), NewPoolTString("far"), zeroSourceLoc);
563 TField *diff = new TField(new TType(EbtFloat, EbpHigh, EvqGlobal, 1), NewPoolTString("diff"), zeroSourceLoc);
564 fields->push_back(near);
565 fields->push_back(far);
566 fields->push_back(diff);
567 TStructure *depthRangeStruct = new TStructure(NewPoolTString("gl_DepthRangeParameters"), fields);
568 TVariable *depthRangeParameters = new TVariable(&depthRangeStruct->name(), depthRangeStruct, true);
569 symbolTable.insert(COMMON_BUILTINS, *depthRangeParameters);
570 TVariable *depthRange = new TVariable(NewPoolTString("gl_DepthRange"), TType(depthRangeStruct));
571 depthRange->setQualifier(EvqUniform);
572 symbolTable.insert(COMMON_BUILTINS, *depthRange);
573
574 //
575 // Implementation dependent built-in constants.
576 //
577 symbolTable.insertConstInt(COMMON_BUILTINS, "gl_MaxVertexAttribs", resources.MaxVertexAttribs);
578 symbolTable.insertConstInt(COMMON_BUILTINS, "gl_MaxVertexUniformVectors", resources.MaxVertexUniformVectors);
579 symbolTable.insertConstInt(COMMON_BUILTINS, "gl_MaxVertexTextureImageUnits", resources.MaxVertexTextureImageUnits);
580 symbolTable.insertConstInt(COMMON_BUILTINS, "gl_MaxCombinedTextureImageUnits", resources.MaxCombinedTextureImageUnits);
581 symbolTable.insertConstInt(COMMON_BUILTINS, "gl_MaxTextureImageUnits", resources.MaxTextureImageUnits);
582 symbolTable.insertConstInt(COMMON_BUILTINS, "gl_MaxFragmentUniformVectors", resources.MaxFragmentUniformVectors);
583
584 symbolTable.insertConstInt(ESSL1_BUILTINS, "gl_MaxVaryingVectors", resources.MaxVaryingVectors);
585
586 if (spec != SH_CSS_SHADERS_SPEC)
587 {
588 symbolTable.insertConstInt(COMMON_BUILTINS, "gl_MaxDrawBuffers", resources.MaxDrawBuffers);
589 }
590
591 symbolTable.insertConstInt(ESSL3_BUILTINS, "gl_MaxVertexOutputVectors", resources.MaxVertexOutputVectors);
592 symbolTable.insertConstInt(ESSL3_BUILTINS, "gl_MaxFragmentInputVectors", resources.MaxFragmentInputVectors);
593 symbolTable.insertConstInt(ESSL3_BUILTINS, "gl_MinProgramTexelOffset", resources.MinProgramTexelOffset);
594 symbolTable.insertConstInt(ESSL3_BUILTINS, "gl_MaxProgramTexelOffset", resources.MaxProgramTexelOffset);
595 }
596
IdentifyBuiltIns(ShShaderType type,ShShaderSpec spec,const ShBuiltInResources & resources,TSymbolTable & symbolTable)597 void IdentifyBuiltIns(ShShaderType type, ShShaderSpec spec,
598 const ShBuiltInResources &resources,
599 TSymbolTable &symbolTable)
600 {
601 //
602 // First, insert some special built-in variables that are not in
603 // the built-in header files.
604 //
605 switch(type) {
606 case SH_FRAGMENT_SHADER:
607 symbolTable.insert(COMMON_BUILTINS, *new TVariable(NewPoolTString("gl_FragCoord"), TType(EbtFloat, EbpMedium, EvqFragCoord, 4)));
608 symbolTable.insert(COMMON_BUILTINS, *new TVariable(NewPoolTString("gl_FrontFacing"), TType(EbtBool, EbpUndefined, EvqFrontFacing, 1)));
609 symbolTable.insert(COMMON_BUILTINS, *new TVariable(NewPoolTString("gl_PointCoord"), TType(EbtFloat, EbpMedium, EvqPointCoord, 2)));
610
611 //
612 // In CSS Shaders, gl_FragColor, gl_FragData, and gl_MaxDrawBuffers are not available.
613 // Instead, css_MixColor and css_ColorMatrix are available.
614 //
615 if (spec != SH_CSS_SHADERS_SPEC) {
616 symbolTable.insert(ESSL1_BUILTINS, *new TVariable(NewPoolTString("gl_FragColor"), TType(EbtFloat, EbpMedium, EvqFragColor, 4)));
617 symbolTable.insert(ESSL1_BUILTINS, *new TVariable(NewPoolTString("gl_FragData[gl_MaxDrawBuffers]"), TType(EbtFloat, EbpMedium, EvqFragData, 4)));
618 if (resources.EXT_frag_depth) {
619 symbolTable.insert(ESSL1_BUILTINS, *new TVariable(NewPoolTString("gl_FragDepthEXT"), TType(EbtFloat, resources.FragmentPrecisionHigh ? EbpHigh : EbpMedium, EvqFragDepth, 1)));
620 symbolTable.relateToExtension(ESSL1_BUILTINS, "gl_FragDepthEXT", "GL_EXT_frag_depth");
621 }
622 } else {
623 symbolTable.insert(ESSL1_BUILTINS, *new TVariable(NewPoolTString("css_MixColor"), TType(EbtFloat, EbpMedium, EvqGlobal, 4)));
624 symbolTable.insert(ESSL1_BUILTINS, *new TVariable(NewPoolTString("css_ColorMatrix"), TType(EbtFloat, EbpMedium, EvqGlobal, 4, 4)));
625 }
626
627 break;
628
629 case SH_VERTEX_SHADER:
630 symbolTable.insert(COMMON_BUILTINS, *new TVariable(NewPoolTString("gl_Position"), TType(EbtFloat, EbpHigh, EvqPosition, 4)));
631 symbolTable.insert(COMMON_BUILTINS, *new TVariable(NewPoolTString("gl_PointSize"), TType(EbtFloat, EbpMedium, EvqPointSize, 1)));
632 break;
633
634 default: assert(false && "Language not supported");
635 }
636
637 //
638 // Next, identify which built-ins from the already loaded headers have
639 // a mapping to an operator. Those that are not identified as such are
640 // expected to be resolved through a library of functions, versus as
641 // operations.
642 //
643 symbolTable.relateToOperator(COMMON_BUILTINS, "matrixCompMult", EOpMul);
644
645 symbolTable.relateToOperator(COMMON_BUILTINS, "equal", EOpVectorEqual);
646 symbolTable.relateToOperator(COMMON_BUILTINS, "notEqual", EOpVectorNotEqual);
647 symbolTable.relateToOperator(COMMON_BUILTINS, "lessThan", EOpLessThan);
648 symbolTable.relateToOperator(COMMON_BUILTINS, "greaterThan", EOpGreaterThan);
649 symbolTable.relateToOperator(COMMON_BUILTINS, "lessThanEqual", EOpLessThanEqual);
650 symbolTable.relateToOperator(COMMON_BUILTINS, "greaterThanEqual", EOpGreaterThanEqual);
651
652 symbolTable.relateToOperator(COMMON_BUILTINS, "radians", EOpRadians);
653 symbolTable.relateToOperator(COMMON_BUILTINS, "degrees", EOpDegrees);
654 symbolTable.relateToOperator(COMMON_BUILTINS, "sin", EOpSin);
655 symbolTable.relateToOperator(COMMON_BUILTINS, "cos", EOpCos);
656 symbolTable.relateToOperator(COMMON_BUILTINS, "tan", EOpTan);
657 symbolTable.relateToOperator(COMMON_BUILTINS, "asin", EOpAsin);
658 symbolTable.relateToOperator(COMMON_BUILTINS, "acos", EOpAcos);
659 symbolTable.relateToOperator(COMMON_BUILTINS, "atan", EOpAtan);
660
661 symbolTable.relateToOperator(COMMON_BUILTINS, "pow", EOpPow);
662 symbolTable.relateToOperator(COMMON_BUILTINS, "exp2", EOpExp2);
663 symbolTable.relateToOperator(COMMON_BUILTINS, "log", EOpLog);
664 symbolTable.relateToOperator(COMMON_BUILTINS, "exp", EOpExp);
665 symbolTable.relateToOperator(COMMON_BUILTINS, "log2", EOpLog2);
666 symbolTable.relateToOperator(COMMON_BUILTINS, "sqrt", EOpSqrt);
667 symbolTable.relateToOperator(COMMON_BUILTINS, "inversesqrt", EOpInverseSqrt);
668
669 symbolTable.relateToOperator(COMMON_BUILTINS, "abs", EOpAbs);
670 symbolTable.relateToOperator(COMMON_BUILTINS, "sign", EOpSign);
671 symbolTable.relateToOperator(COMMON_BUILTINS, "floor", EOpFloor);
672 symbolTable.relateToOperator(COMMON_BUILTINS, "ceil", EOpCeil);
673 symbolTable.relateToOperator(COMMON_BUILTINS, "fract", EOpFract);
674 symbolTable.relateToOperator(COMMON_BUILTINS, "mod", EOpMod);
675 symbolTable.relateToOperator(COMMON_BUILTINS, "min", EOpMin);
676 symbolTable.relateToOperator(COMMON_BUILTINS, "max", EOpMax);
677 symbolTable.relateToOperator(COMMON_BUILTINS, "clamp", EOpClamp);
678 symbolTable.relateToOperator(COMMON_BUILTINS, "mix", EOpMix);
679 symbolTable.relateToOperator(COMMON_BUILTINS, "step", EOpStep);
680 symbolTable.relateToOperator(COMMON_BUILTINS, "smoothstep", EOpSmoothStep);
681
682 symbolTable.relateToOperator(COMMON_BUILTINS, "length", EOpLength);
683 symbolTable.relateToOperator(COMMON_BUILTINS, "distance", EOpDistance);
684 symbolTable.relateToOperator(COMMON_BUILTINS, "dot", EOpDot);
685 symbolTable.relateToOperator(COMMON_BUILTINS, "cross", EOpCross);
686 symbolTable.relateToOperator(COMMON_BUILTINS, "normalize", EOpNormalize);
687 symbolTable.relateToOperator(COMMON_BUILTINS, "faceforward", EOpFaceForward);
688 symbolTable.relateToOperator(COMMON_BUILTINS, "reflect", EOpReflect);
689 symbolTable.relateToOperator(COMMON_BUILTINS, "refract", EOpRefract);
690
691 symbolTable.relateToOperator(COMMON_BUILTINS, "any", EOpAny);
692 symbolTable.relateToOperator(COMMON_BUILTINS, "all", EOpAll);
693 symbolTable.relateToOperator(COMMON_BUILTINS, "not", EOpVectorLogicalNot);
694
695 // Map language-specific operators.
696 switch(type) {
697 case SH_VERTEX_SHADER:
698 break;
699 case SH_FRAGMENT_SHADER:
700 if (resources.OES_standard_derivatives)
701 {
702 symbolTable.relateToOperator(ESSL1_BUILTINS, "dFdx", EOpDFdx);
703 symbolTable.relateToOperator(ESSL1_BUILTINS, "dFdy", EOpDFdy);
704 symbolTable.relateToOperator(ESSL1_BUILTINS, "fwidth", EOpFwidth);
705
706 symbolTable.relateToExtension(ESSL1_BUILTINS, "dFdx", "GL_OES_standard_derivatives");
707 symbolTable.relateToExtension(ESSL1_BUILTINS, "dFdy", "GL_OES_standard_derivatives");
708 symbolTable.relateToExtension(ESSL1_BUILTINS, "fwidth", "GL_OES_standard_derivatives");
709 }
710 if (resources.EXT_shader_texture_lod)
711 {
712 symbolTable.relateToExtension(ESSL1_BUILTINS, "texture2DLodEXT", "GL_EXT_shader_texture_lod");
713 symbolTable.relateToExtension(ESSL1_BUILTINS, "texture2DProjLodEXT", "GL_EXT_shader_texture_lod");
714 symbolTable.relateToExtension(ESSL1_BUILTINS, "textureCubeLodEXT", "GL_EXT_shader_texture_lod");
715 }
716 break;
717 default: break;
718 }
719
720 symbolTable.relateToOperator(ESSL3_BUILTINS, "dFdx", EOpDFdx);
721 symbolTable.relateToOperator(ESSL3_BUILTINS, "dFdy", EOpDFdy);
722 symbolTable.relateToOperator(ESSL3_BUILTINS, "fwidth", EOpFwidth);
723
724 if (resources.EXT_shader_texture_lod)
725 {
726 symbolTable.relateToExtension(ESSL1_BUILTINS, "texture2DGradEXT", "GL_EXT_shader_texture_lod");
727 symbolTable.relateToExtension(ESSL1_BUILTINS, "texture2DProjGradEXT", "GL_EXT_shader_texture_lod");
728 symbolTable.relateToExtension(ESSL1_BUILTINS, "textureCubeGradEXT", "GL_EXT_shader_texture_lod");
729 }
730
731 // Finally add resource-specific variables.
732 switch(type) {
733 case SH_FRAGMENT_SHADER:
734 if (spec != SH_CSS_SHADERS_SPEC) {
735 // Set up gl_FragData. The array size.
736 TType fragData(EbtFloat, EbpMedium, EvqFragData, 4, 1, true);
737 fragData.setArraySize(resources.MaxDrawBuffers);
738 symbolTable.insert(ESSL1_BUILTINS, *new TVariable(NewPoolTString("gl_FragData"), fragData));
739 }
740 break;
741 default: break;
742 }
743 }
744
InitExtensionBehavior(const ShBuiltInResources & resources,TExtensionBehavior & extBehavior)745 void InitExtensionBehavior(const ShBuiltInResources& resources,
746 TExtensionBehavior& extBehavior)
747 {
748 if (resources.OES_standard_derivatives)
749 extBehavior["GL_OES_standard_derivatives"] = EBhUndefined;
750 if (resources.OES_EGL_image_external)
751 extBehavior["GL_OES_EGL_image_external"] = EBhUndefined;
752 if (resources.ARB_texture_rectangle)
753 extBehavior["GL_ARB_texture_rectangle"] = EBhUndefined;
754 if (resources.EXT_draw_buffers)
755 extBehavior["GL_EXT_draw_buffers"] = EBhUndefined;
756 if (resources.EXT_frag_depth)
757 extBehavior["GL_EXT_frag_depth"] = EBhUndefined;
758 if (resources.EXT_shader_texture_lod)
759 extBehavior["GL_EXT_shader_texture_lod"] = EBhUndefined;
760 }
761