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/IntermNode.h"
16 #include "angle_gl.h"
17
InsertBuiltInFunctions(sh::GLenum type,ShShaderSpec spec,const ShBuiltInResources & resources,TSymbolTable & symbolTable)18 void InsertBuiltInFunctions(sh::GLenum type, ShShaderSpec spec, const ShBuiltInResources &resources, TSymbolTable &symbolTable)
19 {
20 TType *float1 = new TType(EbtFloat);
21 TType *float2 = new TType(EbtFloat, 2);
22 TType *float3 = new TType(EbtFloat, 3);
23 TType *float4 = new TType(EbtFloat, 4);
24
25 TType *int1 = new TType(EbtInt);
26 TType *int2 = new TType(EbtInt, 2);
27 TType *int3 = new TType(EbtInt, 3);
28 TType *int4 = new TType(EbtInt, 4);
29
30 //
31 // Angle and Trigonometric Functions.
32 //
33 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "radians", float1);
34 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "radians", float2);
35 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "radians", float3);
36 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "radians", float4);
37
38 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "degrees", float1);
39 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "degrees", float2);
40 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "degrees", float3);
41 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "degrees", float4);
42
43 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "sin", float1);
44 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "sin", float2);
45 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "sin", float3);
46 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "sin", float4);
47
48 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "cos", float1);
49 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "cos", float2);
50 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "cos", float3);
51 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "cos", float4);
52
53 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "tan", float1);
54 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "tan", float2);
55 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "tan", float3);
56 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "tan", float4);
57
58 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "asin", float1);
59 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "asin", float2);
60 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "asin", float3);
61 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "asin", float4);
62
63 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "acos", float1);
64 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "acos", float2);
65 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "acos", float3);
66 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "acos", float4);
67
68 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "atan", float1, float1);
69 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "atan", float2, float2);
70 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "atan", float3, float3);
71 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "atan", float4, float4);
72
73 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "atan", float1);
74 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "atan", float2);
75 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "atan", float3);
76 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "atan", float4);
77
78 //
79 // Exponential Functions.
80 //
81 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "pow", float1, float1);
82 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "pow", float2, float2);
83 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "pow", float3, float3);
84 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "pow", float4, float4);
85
86 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "exp", float1);
87 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "exp", float2);
88 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "exp", float3);
89 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "exp", float4);
90
91 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "log", float1);
92 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "log", float2);
93 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "log", float3);
94 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "log", float4);
95
96 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "exp2", float1);
97 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "exp2", float2);
98 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "exp2", float3);
99 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "exp2", float4);
100
101 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "log2", float1);
102 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "log2", float2);
103 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "log2", float3);
104 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "log2", float4);
105
106 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "sqrt", float1);
107 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "sqrt", float2);
108 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "sqrt", float3);
109 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "sqrt", float4);
110
111 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "inversesqrt", float1);
112 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "inversesqrt", float2);
113 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "inversesqrt", float3);
114 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "inversesqrt", float4);
115
116 //
117 // Common Functions.
118 //
119 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "abs", float1);
120 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "abs", float2);
121 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "abs", float3);
122 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "abs", float4);
123
124 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "sign", float1);
125 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "sign", float2);
126 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "sign", float3);
127 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "sign", float4);
128
129 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "floor", float1);
130 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "floor", float2);
131 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "floor", float3);
132 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "floor", float4);
133
134 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "ceil", float1);
135 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "ceil", float2);
136 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "ceil", float3);
137 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "ceil", float4);
138
139 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "fract", float1);
140 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "fract", float2);
141 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "fract", float3);
142 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "fract", float4);
143
144 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "mod", float1, float1);
145 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "mod", float2, float1);
146 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "mod", float3, float1);
147 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "mod", float4, float1);
148 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "mod", float2, float2);
149 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "mod", float3, float3);
150 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "mod", float4, float4);
151
152 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "min", float1, float1);
153 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "min", float2, float1);
154 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "min", float3, float1);
155 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "min", float4, float1);
156 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "min", float2, float2);
157 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "min", float3, float3);
158 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "min", float4, float4);
159
160 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "max", float1, float1);
161 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "max", float2, float1);
162 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "max", float3, float1);
163 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "max", float4, float1);
164 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "max", float2, float2);
165 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "max", float3, float3);
166 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "max", float4, float4);
167
168 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "clamp", float1, float1, float1);
169 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "clamp", float2, float1, float1);
170 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "clamp", float3, float1, float1);
171 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "clamp", float4, float1, float1);
172 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "clamp", float2, float2, float2);
173 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "clamp", float3, float3, float3);
174 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "clamp", float4, float4, float4);
175
176 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "mix", float1, float1, float1);
177 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "mix", float2, float2, float1);
178 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "mix", float3, float3, float1);
179 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "mix", float4, float4, float1);
180 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "mix", float2, float2, float2);
181 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "mix", float3, float3, float3);
182 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "mix", float4, float4, float4);
183
184 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "step", float1, float1);
185 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "step", float2, float2);
186 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "step", float3, float3);
187 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "step", float4, float4);
188 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "step", float1, float2);
189 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "step", float1, float3);
190 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "step", float1, float4);
191
192 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "smoothstep", float1, float1, float1);
193 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "smoothstep", float2, float2, float2);
194 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "smoothstep", float3, float3, float3);
195 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "smoothstep", float4, float4, float4);
196 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "smoothstep", float1, float1, float2);
197 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "smoothstep", float1, float1, float3);
198 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "smoothstep", float1, float1, float4);
199
200 //
201 // Geometric Functions.
202 //
203 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "length", float1);
204 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "length", float2);
205 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "length", float3);
206 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "length", float4);
207
208 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "distance", float1, float1);
209 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "distance", float2, float2);
210 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "distance", float3, float3);
211 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "distance", float4, float4);
212
213 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "dot", float1, float1);
214 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "dot", float2, float2);
215 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "dot", float3, float3);
216 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "dot", float4, float4);
217
218 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "cross", float3, float3);
219 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "normalize", float1);
220 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "normalize", float2);
221 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "normalize", float3);
222 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "normalize", float4);
223
224 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "faceforward", float1, float1, float1);
225 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "faceforward", float2, float2, float2);
226 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "faceforward", float3, float3, float3);
227 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "faceforward", float4, float4, float4);
228
229 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "reflect", float1, float1);
230 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "reflect", float2, float2);
231 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "reflect", float3, float3);
232 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "reflect", float4, float4);
233
234 symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "refract", float1, float1, float1);
235 symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "refract", float2, float2, float1);
236 symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "refract", float3, float3, float1);
237 symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "refract", float4, float4, float1);
238
239 TType *mat2 = new TType(EbtFloat, 2, 2);
240 TType *mat3 = new TType(EbtFloat, 3, 3);
241 TType *mat4 = new TType(EbtFloat, 4, 4);
242
243 //
244 // Matrix Functions.
245 //
246 symbolTable.insertBuiltIn(COMMON_BUILTINS, mat2, "matrixCompMult", mat2, mat2);
247 symbolTable.insertBuiltIn(COMMON_BUILTINS, mat3, "matrixCompMult", mat3, mat3);
248 symbolTable.insertBuiltIn(COMMON_BUILTINS, mat4, "matrixCompMult", mat4, mat4);
249
250 TType *bool1 = new TType(EbtBool);
251 TType *bool2 = new TType(EbtBool, 2);
252 TType *bool3 = new TType(EbtBool, 3);
253 TType *bool4 = new TType(EbtBool, 4);
254
255 //
256 // Vector relational functions.
257 //
258 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool2, "lessThan", float2, float2);
259 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool3, "lessThan", float3, float3);
260 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool4, "lessThan", float4, float4);
261
262 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool2, "lessThan", int2, int2);
263 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool3, "lessThan", int3, int3);
264 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool4, "lessThan", int4, int4);
265
266 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool2, "lessThanEqual", float2, float2);
267 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool3, "lessThanEqual", float3, float3);
268 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool4, "lessThanEqual", float4, float4);
269
270 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool2, "lessThanEqual", int2, int2);
271 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool3, "lessThanEqual", int3, int3);
272 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool4, "lessThanEqual", int4, int4);
273
274 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool2, "greaterThan", float2, float2);
275 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool3, "greaterThan", float3, float3);
276 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool4, "greaterThan", float4, float4);
277
278 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool2, "greaterThan", int2, int2);
279 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool3, "greaterThan", int3, int3);
280 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool4, "greaterThan", int4, int4);
281
282 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool2, "greaterThanEqual", float2, float2);
283 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool3, "greaterThanEqual", float3, float3);
284 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool4, "greaterThanEqual", float4, float4);
285
286 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool2, "greaterThanEqual", int2, int2);
287 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool3, "greaterThanEqual", int3, int3);
288 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool4, "greaterThanEqual", int4, int4);
289
290 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool2, "equal", float2, float2);
291 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool3, "equal", float3, float3);
292 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool4, "equal", float4, float4);
293
294 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool2, "equal", int2, int2);
295 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool3, "equal", int3, int3);
296 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool4, "equal", int4, int4);
297
298 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool2, "equal", bool2, bool2);
299 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool3, "equal", bool3, bool3);
300 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool4, "equal", bool4, bool4);
301
302 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool2, "notEqual", float2, float2);
303 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool3, "notEqual", float3, float3);
304 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool4, "notEqual", float4, float4);
305
306 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool2, "notEqual", int2, int2);
307 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool3, "notEqual", int3, int3);
308 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool4, "notEqual", int4, int4);
309
310 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool2, "notEqual", bool2, bool2);
311 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool3, "notEqual", bool3, bool3);
312 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool4, "notEqual", bool4, bool4);
313
314 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool1, "any", bool2);
315 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool1, "any", bool3);
316 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool1, "any", bool4);
317
318 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool1, "all", bool2);
319 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool1, "all", bool3);
320 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool1, "all", bool4);
321
322 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool2, "not", bool2);
323 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool3, "not", bool3);
324 symbolTable.insertBuiltIn(COMMON_BUILTINS, bool4, "not", bool4);
325
326 TType *sampler2D = new TType(EbtSampler2D);
327 TType *samplerCube = new TType(EbtSamplerCube);
328
329 //
330 // Texture Functions for GLSL ES 1.0
331 //
332 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2D", sampler2D, float2);
333 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2DProj", sampler2D, float3);
334 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2DProj", sampler2D, float4);
335 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "textureCube", samplerCube, float3);
336
337 if (resources.OES_EGL_image_external)
338 {
339 TType *samplerExternalOES = new TType(EbtSamplerExternalOES);
340
341 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2D", samplerExternalOES, float2);
342 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2DProj", samplerExternalOES, float3);
343 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2DProj", samplerExternalOES, float4);
344 }
345
346 if (resources.ARB_texture_rectangle)
347 {
348 TType *sampler2DRect = new TType(EbtSampler2DRect);
349
350 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2DRect", sampler2DRect, float2);
351 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2DRectProj", sampler2DRect, float3);
352 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2DRectProj", sampler2DRect, float4);
353 }
354
355 if (resources.EXT_shader_texture_lod)
356 {
357 /* The *Grad* variants are new to both vertex and fragment shaders; the fragment
358 * shader specific pieces are added separately below.
359 */
360 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2DGradEXT", sampler2D, float2, float2, float2);
361 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2DProjGradEXT", sampler2D, float3, float2, float2);
362 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2DProjGradEXT", sampler2D, float4, float2, float2);
363 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "textureCubeGradEXT", samplerCube, float3, float3, float3);
364 }
365
366 if (type == GL_FRAGMENT_SHADER)
367 {
368 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2D", sampler2D, float2, float1);
369 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2DProj", sampler2D, float3, float1);
370 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2DProj", sampler2D, float4, float1);
371 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "textureCube", samplerCube, float3, float1);
372
373 if (resources.OES_standard_derivatives)
374 {
375 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float1, "dFdx", float1);
376 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float2, "dFdx", float2);
377 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float3, "dFdx", float3);
378 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "dFdx", float4);
379
380 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float1, "dFdy", float1);
381 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float2, "dFdy", float2);
382 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float3, "dFdy", float3);
383 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "dFdy", float4);
384
385 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float1, "fwidth", float1);
386 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float2, "fwidth", float2);
387 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float3, "fwidth", float3);
388 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "fwidth", float4);
389 }
390
391 if (resources.EXT_shader_texture_lod)
392 {
393 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2DLodEXT", sampler2D, float2, float1);
394 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2DProjLodEXT", sampler2D, float3, float1);
395 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2DProjLodEXT", sampler2D, float4, float1);
396 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "textureCubeLodEXT", samplerCube, float3, float1);
397 }
398 }
399
400 if(type == GL_VERTEX_SHADER)
401 {
402 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2DLod", sampler2D, float2, float1);
403 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2DProjLod", sampler2D, float3, float1);
404 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2DProjLod", sampler2D, float4, float1);
405 symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "textureCubeLod", samplerCube, float3, float1);
406 }
407
408 TType *gvec4 = new TType(EbtGVec4);
409
410 TType *gsampler2D = new TType(EbtGSampler2D);
411 TType *gsamplerCube = new TType(EbtGSamplerCube);
412 TType *gsampler3D = new TType(EbtGSampler3D);
413 TType *gsampler2DArray = new TType(EbtGSampler2DArray);
414
415 //
416 // Texture Functions for GLSL ES 3.0
417 //
418 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "texture", gsampler2D, float2);
419 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "texture", gsampler3D, float3);
420 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "texture", gsamplerCube, float3);
421 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "texture", gsampler2DArray, float3);
422 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProj", gsampler2D, float3);
423 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProj", gsampler2D, float4);
424 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProj", gsampler3D, float4);
425 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureLod", gsampler2D, float2, float1);
426 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureLod", gsampler3D, float3, float1);
427 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureLod", gsamplerCube, float3, float1);
428 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureLod", gsampler2DArray, float3, float1);
429
430 if (type == GL_FRAGMENT_SHADER)
431 {
432 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "texture", gsampler2D, float2, float1);
433 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "texture", gsampler3D, float3, float1);
434 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "texture", gsamplerCube, float3, float1);
435 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "texture", gsampler2DArray, float3, float1);
436 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProj", gsampler2D, float3, float1);
437 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProj", gsampler2D, float4, float1);
438 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProj", gsampler3D, float4, float1);
439 }
440
441 TType *sampler2DShadow = new TType(EbtSampler2DShadow);
442 TType *samplerCubeShadow = new TType(EbtSamplerCubeShadow);
443 TType *sampler2DArrayShadow = new TType(EbtSampler2DArrayShadow);
444
445 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "texture", sampler2DShadow, float3);
446 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "texture", samplerCubeShadow, float4);
447 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "texture", sampler2DArrayShadow, float4);
448 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureProj", sampler2DShadow, float4);
449 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureLod", sampler2DShadow, float3, float1);
450
451 if (type == GL_FRAGMENT_SHADER)
452 {
453 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "texture", sampler2DShadow, float3, float1);
454 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "texture", samplerCubeShadow, float4, float1);
455 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureProj", sampler2DShadow, float4, float1);
456 }
457
458 symbolTable.insertBuiltIn(ESSL3_BUILTINS, int2, "textureSize", gsampler2D, int1);
459 symbolTable.insertBuiltIn(ESSL3_BUILTINS, int3, "textureSize", gsampler3D, int1);
460 symbolTable.insertBuiltIn(ESSL3_BUILTINS, int2, "textureSize", gsamplerCube, int1);
461 symbolTable.insertBuiltIn(ESSL3_BUILTINS, int3, "textureSize", gsampler2DArray, int1);
462 symbolTable.insertBuiltIn(ESSL3_BUILTINS, int2, "textureSize", sampler2DShadow, int1);
463 symbolTable.insertBuiltIn(ESSL3_BUILTINS, int2, "textureSize", samplerCubeShadow, int1);
464 symbolTable.insertBuiltIn(ESSL3_BUILTINS, int3, "textureSize", sampler2DArrayShadow, int1);
465
466 if(type == GL_FRAGMENT_SHADER)
467 {
468 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "dFdx", float1);
469 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float2, "dFdx", float2);
470 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float3, "dFdx", float3);
471 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float4, "dFdx", float4);
472
473 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "dFdy", float1);
474 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float2, "dFdy", float2);
475 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float3, "dFdy", float3);
476 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float4, "dFdy", float4);
477
478 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "fwidth", float1);
479 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float2, "fwidth", float2);
480 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float3, "fwidth", float3);
481 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float4, "fwidth", float4);
482 }
483
484 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureOffset", gsampler2D, float2, int2);
485 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureOffset", gsampler3D, float3, int3);
486 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureOffset", sampler2DShadow, float3, int2);
487 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureOffset", gsampler2DArray, float3, int2);
488
489 if(type == GL_FRAGMENT_SHADER)
490 {
491 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureOffset", gsampler2D, float2, int2, float1);
492 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureOffset", gsampler3D, float3, int3, float1);
493 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureOffset", sampler2DShadow, float3, int2, float1);
494 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureOffset", gsampler2DArray, float3, int2, float1);
495 }
496
497 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjOffset", gsampler2D, float3, int2);
498 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjOffset", gsampler2D, float4, int2);
499 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjOffset", gsampler3D, float4, int3);
500 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureProjOffset", sampler2DShadow, float4, int2);
501
502 if(type == GL_FRAGMENT_SHADER)
503 {
504 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjOffset", gsampler2D, float3, int2, float1);
505 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjOffset", gsampler2D, float4, int2, float1);
506 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjOffset", gsampler3D, float4, int3, float1);
507 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureProjOffset", sampler2DShadow, float4, int2, float1);
508 }
509
510 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureLodOffset", gsampler2D, float2, float1, int2);
511 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureLodOffset", gsampler3D, float3, float1, int3);
512 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureLodOffset", sampler2DShadow, float3, float1, int2);
513 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureLodOffset", gsampler2DArray, float3, float1, int2);
514
515 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjLod", gsampler2D, float3, float1);
516 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjLod", gsampler2D, float4, float1);
517 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjLod", gsampler3D, float4, float1);
518 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureProjLod", sampler2DShadow, float4, float1);
519
520 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjLodOffset", gsampler2D, float3, float1, int2);
521 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjLodOffset", gsampler2D, float4, float1, int2);
522 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjLodOffset", gsampler3D, float4, float1, int3);
523 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureProjLodOffset", sampler2DShadow, float4, float1, int2);
524
525 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "texelFetch", gsampler2D, int2, int1);
526 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "texelFetch", gsampler3D, int3, int1);
527 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "texelFetch", gsampler2DArray, int3, int1);
528
529 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "texelFetchOffset", gsampler2D, int2, int1, int2);
530 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "texelFetchOffset", gsampler3D, int3, int1, int3);
531 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "texelFetchOffset", gsampler2DArray, int3, int1, int2);
532
533 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureGrad", gsampler2D, float2, float2, float2);
534 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureGrad", gsampler3D, float3, float3, float3);
535 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureGrad", gsamplerCube, float3, float3, float3);
536 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureGrad", sampler2DShadow, float3, float2, float2);
537 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureGrad", samplerCubeShadow, float4, float3, float3);
538 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureGrad", gsampler2DArray, float3, float2, float2);
539 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureGrad", sampler2DArrayShadow, float4, float2, float2);
540
541 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureGradOffset", gsampler2D, float2, float2, float2, int2);
542 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureGradOffset", gsampler3D, float3, float3, float3, int3);
543 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureGradOffset", sampler2DShadow, float3, float2, float2, int2);
544 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureGradOffset", gsampler2DArray, float3, float2, float2, int2);
545 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureGradOffset", sampler2DArrayShadow, float4, float2, float2, int2);
546
547 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjGrad", gsampler2D, float3, float2, float2);
548 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjGrad", gsampler2D, float4, float2, float2);
549 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjGrad", gsampler3D, float4, float3, float3);
550 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureProjGrad", sampler2DShadow, float4, float2, float2);
551
552 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjGradOffset", gsampler2D, float3, float2, float2, int2);
553 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjGradOffset", gsampler2D, float4, float2, float2, int2);
554 symbolTable.insertBuiltIn(ESSL3_BUILTINS, gvec4, "textureProjGradOffset", gsampler3D, float4, float3, float3, int3);
555 symbolTable.insertBuiltIn(ESSL3_BUILTINS, float1, "textureProjGradOffset", sampler2DShadow, float4, float2, float2, int2);
556
557 //
558 // Depth range in window coordinates
559 //
560 TFieldList *fields = NewPoolTFieldList();
561 TSourceLoc zeroSourceLoc = {0, 0, 0, 0};
562 TField *near = new TField(new TType(EbtFloat, EbpHigh, EvqGlobal, 1), NewPoolTString("near"), zeroSourceLoc);
563 TField *far = new TField(new TType(EbtFloat, EbpHigh, EvqGlobal, 1), NewPoolTString("far"), zeroSourceLoc);
564 TField *diff = new TField(new TType(EbtFloat, EbpHigh, EvqGlobal, 1), NewPoolTString("diff"), zeroSourceLoc);
565 fields->push_back(near);
566 fields->push_back(far);
567 fields->push_back(diff);
568 TStructure *depthRangeStruct = new TStructure(NewPoolTString("gl_DepthRangeParameters"), fields);
569 TVariable *depthRangeParameters = new TVariable(&depthRangeStruct->name(), depthRangeStruct, true);
570 symbolTable.insert(COMMON_BUILTINS, depthRangeParameters);
571 TVariable *depthRange = new TVariable(NewPoolTString("gl_DepthRange"), TType(depthRangeStruct));
572 depthRange->setQualifier(EvqUniform);
573 symbolTable.insert(COMMON_BUILTINS, depthRange);
574
575 //
576 // Implementation dependent built-in constants.
577 //
578 symbolTable.insertConstInt(COMMON_BUILTINS, "gl_MaxVertexAttribs", resources.MaxVertexAttribs);
579 symbolTable.insertConstInt(COMMON_BUILTINS, "gl_MaxVertexUniformVectors", resources.MaxVertexUniformVectors);
580 symbolTable.insertConstInt(COMMON_BUILTINS, "gl_MaxVertexTextureImageUnits", resources.MaxVertexTextureImageUnits);
581 symbolTable.insertConstInt(COMMON_BUILTINS, "gl_MaxCombinedTextureImageUnits", resources.MaxCombinedTextureImageUnits);
582 symbolTable.insertConstInt(COMMON_BUILTINS, "gl_MaxTextureImageUnits", resources.MaxTextureImageUnits);
583 symbolTable.insertConstInt(COMMON_BUILTINS, "gl_MaxFragmentUniformVectors", resources.MaxFragmentUniformVectors);
584
585 symbolTable.insertConstInt(ESSL1_BUILTINS, "gl_MaxVaryingVectors", resources.MaxVaryingVectors);
586
587 if (spec != SH_CSS_SHADERS_SPEC)
588 {
589 symbolTable.insertConstInt(COMMON_BUILTINS, "gl_MaxDrawBuffers", resources.MaxDrawBuffers);
590 }
591
592 symbolTable.insertConstInt(ESSL3_BUILTINS, "gl_MaxVertexOutputVectors", resources.MaxVertexOutputVectors);
593 symbolTable.insertConstInt(ESSL3_BUILTINS, "gl_MaxFragmentInputVectors", resources.MaxFragmentInputVectors);
594 symbolTable.insertConstInt(ESSL3_BUILTINS, "gl_MinProgramTexelOffset", resources.MinProgramTexelOffset);
595 symbolTable.insertConstInt(ESSL3_BUILTINS, "gl_MaxProgramTexelOffset", resources.MaxProgramTexelOffset);
596 }
597
IdentifyBuiltIns(sh::GLenum type,ShShaderSpec spec,const ShBuiltInResources & resources,TSymbolTable & symbolTable)598 void IdentifyBuiltIns(sh::GLenum type, ShShaderSpec spec,
599 const ShBuiltInResources &resources,
600 TSymbolTable &symbolTable)
601 {
602 //
603 // First, insert some special built-in variables that are not in
604 // the built-in header files.
605 //
606 switch(type) {
607 case GL_FRAGMENT_SHADER:
608 symbolTable.insert(COMMON_BUILTINS, new TVariable(NewPoolTString("gl_FragCoord"), TType(EbtFloat, EbpMedium, EvqFragCoord, 4)));
609 symbolTable.insert(COMMON_BUILTINS, new TVariable(NewPoolTString("gl_FrontFacing"), TType(EbtBool, EbpUndefined, EvqFrontFacing, 1)));
610 symbolTable.insert(COMMON_BUILTINS, new TVariable(NewPoolTString("gl_PointCoord"), TType(EbtFloat, EbpMedium, EvqPointCoord, 2)));
611
612 //
613 // In CSS Shaders, gl_FragColor, gl_FragData, and gl_MaxDrawBuffers are not available.
614 // Instead, css_MixColor and css_ColorMatrix are available.
615 //
616 if (spec != SH_CSS_SHADERS_SPEC) {
617 symbolTable.insert(ESSL1_BUILTINS, new TVariable(NewPoolTString("gl_FragColor"), TType(EbtFloat, EbpMedium, EvqFragColor, 4)));
618 symbolTable.insert(ESSL1_BUILTINS, new TVariable(NewPoolTString("gl_FragData[gl_MaxDrawBuffers]"), TType(EbtFloat, EbpMedium, EvqFragData, 4)));
619 if (resources.EXT_frag_depth) {
620 symbolTable.insert(ESSL1_BUILTINS, new TVariable(NewPoolTString("gl_FragDepthEXT"), TType(EbtFloat, resources.FragmentPrecisionHigh ? EbpHigh : EbpMedium, EvqFragDepth, 1)));
621 symbolTable.relateToExtension(ESSL1_BUILTINS, "gl_FragDepthEXT", "GL_EXT_frag_depth");
622 }
623 } else {
624 symbolTable.insert(ESSL1_BUILTINS, new TVariable(NewPoolTString("css_MixColor"), TType(EbtFloat, EbpMedium, EvqGlobal, 4)));
625 symbolTable.insert(ESSL1_BUILTINS, new TVariable(NewPoolTString("css_ColorMatrix"), TType(EbtFloat, EbpMedium, EvqGlobal, 4, 4)));
626 }
627
628 break;
629
630 case GL_VERTEX_SHADER:
631 symbolTable.insert(COMMON_BUILTINS, new TVariable(NewPoolTString("gl_Position"), TType(EbtFloat, EbpHigh, EvqPosition, 4)));
632 symbolTable.insert(COMMON_BUILTINS, new TVariable(NewPoolTString("gl_PointSize"), TType(EbtFloat, EbpMedium, EvqPointSize, 1)));
633 break;
634
635 default: assert(false && "Language not supported");
636 }
637
638 //
639 // Next, identify which built-ins from the already loaded headers have
640 // a mapping to an operator. Those that are not identified as such are
641 // expected to be resolved through a library of functions, versus as
642 // operations.
643 //
644 symbolTable.relateToOperator(COMMON_BUILTINS, "matrixCompMult", EOpMul);
645
646 symbolTable.relateToOperator(COMMON_BUILTINS, "equal", EOpVectorEqual);
647 symbolTable.relateToOperator(COMMON_BUILTINS, "notEqual", EOpVectorNotEqual);
648 symbolTable.relateToOperator(COMMON_BUILTINS, "lessThan", EOpLessThan);
649 symbolTable.relateToOperator(COMMON_BUILTINS, "greaterThan", EOpGreaterThan);
650 symbolTable.relateToOperator(COMMON_BUILTINS, "lessThanEqual", EOpLessThanEqual);
651 symbolTable.relateToOperator(COMMON_BUILTINS, "greaterThanEqual", EOpGreaterThanEqual);
652
653 symbolTable.relateToOperator(COMMON_BUILTINS, "radians", EOpRadians);
654 symbolTable.relateToOperator(COMMON_BUILTINS, "degrees", EOpDegrees);
655 symbolTable.relateToOperator(COMMON_BUILTINS, "sin", EOpSin);
656 symbolTable.relateToOperator(COMMON_BUILTINS, "cos", EOpCos);
657 symbolTable.relateToOperator(COMMON_BUILTINS, "tan", EOpTan);
658 symbolTable.relateToOperator(COMMON_BUILTINS, "asin", EOpAsin);
659 symbolTable.relateToOperator(COMMON_BUILTINS, "acos", EOpAcos);
660 symbolTable.relateToOperator(COMMON_BUILTINS, "atan", EOpAtan);
661
662 symbolTable.relateToOperator(COMMON_BUILTINS, "pow", EOpPow);
663 symbolTable.relateToOperator(COMMON_BUILTINS, "exp2", EOpExp2);
664 symbolTable.relateToOperator(COMMON_BUILTINS, "log", EOpLog);
665 symbolTable.relateToOperator(COMMON_BUILTINS, "exp", EOpExp);
666 symbolTable.relateToOperator(COMMON_BUILTINS, "log2", EOpLog2);
667 symbolTable.relateToOperator(COMMON_BUILTINS, "sqrt", EOpSqrt);
668 symbolTable.relateToOperator(COMMON_BUILTINS, "inversesqrt", EOpInverseSqrt);
669
670 symbolTable.relateToOperator(COMMON_BUILTINS, "abs", EOpAbs);
671 symbolTable.relateToOperator(COMMON_BUILTINS, "sign", EOpSign);
672 symbolTable.relateToOperator(COMMON_BUILTINS, "floor", EOpFloor);
673 symbolTable.relateToOperator(COMMON_BUILTINS, "ceil", EOpCeil);
674 symbolTable.relateToOperator(COMMON_BUILTINS, "fract", EOpFract);
675 symbolTable.relateToOperator(COMMON_BUILTINS, "mod", EOpMod);
676 symbolTable.relateToOperator(COMMON_BUILTINS, "min", EOpMin);
677 symbolTable.relateToOperator(COMMON_BUILTINS, "max", EOpMax);
678 symbolTable.relateToOperator(COMMON_BUILTINS, "clamp", EOpClamp);
679 symbolTable.relateToOperator(COMMON_BUILTINS, "mix", EOpMix);
680 symbolTable.relateToOperator(COMMON_BUILTINS, "step", EOpStep);
681 symbolTable.relateToOperator(COMMON_BUILTINS, "smoothstep", EOpSmoothStep);
682
683 symbolTable.relateToOperator(COMMON_BUILTINS, "length", EOpLength);
684 symbolTable.relateToOperator(COMMON_BUILTINS, "distance", EOpDistance);
685 symbolTable.relateToOperator(COMMON_BUILTINS, "dot", EOpDot);
686 symbolTable.relateToOperator(COMMON_BUILTINS, "cross", EOpCross);
687 symbolTable.relateToOperator(COMMON_BUILTINS, "normalize", EOpNormalize);
688 symbolTable.relateToOperator(COMMON_BUILTINS, "faceforward", EOpFaceForward);
689 symbolTable.relateToOperator(COMMON_BUILTINS, "reflect", EOpReflect);
690 symbolTable.relateToOperator(COMMON_BUILTINS, "refract", EOpRefract);
691
692 symbolTable.relateToOperator(COMMON_BUILTINS, "any", EOpAny);
693 symbolTable.relateToOperator(COMMON_BUILTINS, "all", EOpAll);
694 symbolTable.relateToOperator(COMMON_BUILTINS, "not", EOpVectorLogicalNot);
695
696 // Map language-specific operators.
697 switch(type) {
698 case GL_VERTEX_SHADER:
699 break;
700 case GL_FRAGMENT_SHADER:
701 if (resources.OES_standard_derivatives)
702 {
703 symbolTable.relateToOperator(ESSL1_BUILTINS, "dFdx", EOpDFdx);
704 symbolTable.relateToOperator(ESSL1_BUILTINS, "dFdy", EOpDFdy);
705 symbolTable.relateToOperator(ESSL1_BUILTINS, "fwidth", EOpFwidth);
706
707 symbolTable.relateToExtension(ESSL1_BUILTINS, "dFdx", "GL_OES_standard_derivatives");
708 symbolTable.relateToExtension(ESSL1_BUILTINS, "dFdy", "GL_OES_standard_derivatives");
709 symbolTable.relateToExtension(ESSL1_BUILTINS, "fwidth", "GL_OES_standard_derivatives");
710 }
711 if (resources.EXT_shader_texture_lod)
712 {
713 symbolTable.relateToExtension(ESSL1_BUILTINS, "texture2DLodEXT", "GL_EXT_shader_texture_lod");
714 symbolTable.relateToExtension(ESSL1_BUILTINS, "texture2DProjLodEXT", "GL_EXT_shader_texture_lod");
715 symbolTable.relateToExtension(ESSL1_BUILTINS, "textureCubeLodEXT", "GL_EXT_shader_texture_lod");
716 }
717 break;
718 default: break;
719 }
720
721 symbolTable.relateToOperator(ESSL3_BUILTINS, "dFdx", EOpDFdx);
722 symbolTable.relateToOperator(ESSL3_BUILTINS, "dFdy", EOpDFdy);
723 symbolTable.relateToOperator(ESSL3_BUILTINS, "fwidth", EOpFwidth);
724
725 if (resources.EXT_shader_texture_lod)
726 {
727 symbolTable.relateToExtension(ESSL1_BUILTINS, "texture2DGradEXT", "GL_EXT_shader_texture_lod");
728 symbolTable.relateToExtension(ESSL1_BUILTINS, "texture2DProjGradEXT", "GL_EXT_shader_texture_lod");
729 symbolTable.relateToExtension(ESSL1_BUILTINS, "textureCubeGradEXT", "GL_EXT_shader_texture_lod");
730 }
731
732 // Finally add resource-specific variables.
733 switch(type) {
734 case GL_FRAGMENT_SHADER:
735 if (spec != SH_CSS_SHADERS_SPEC) {
736 // Set up gl_FragData. The array size.
737 TType fragData(EbtFloat, EbpMedium, EvqFragData, 4, 1, true);
738 fragData.setArraySize(resources.MaxDrawBuffers);
739 symbolTable.insert(ESSL1_BUILTINS, new TVariable(NewPoolTString("gl_FragData"), fragData));
740 }
741 break;
742 default: break;
743 }
744 }
745
InitExtensionBehavior(const ShBuiltInResources & resources,TExtensionBehavior & extBehavior)746 void InitExtensionBehavior(const ShBuiltInResources& resources,
747 TExtensionBehavior& extBehavior)
748 {
749 if (resources.OES_standard_derivatives)
750 extBehavior["GL_OES_standard_derivatives"] = EBhUndefined;
751 if (resources.OES_EGL_image_external)
752 extBehavior["GL_OES_EGL_image_external"] = EBhUndefined;
753 if (resources.ARB_texture_rectangle)
754 extBehavior["GL_ARB_texture_rectangle"] = EBhUndefined;
755 if (resources.EXT_draw_buffers)
756 extBehavior["GL_EXT_draw_buffers"] = EBhUndefined;
757 if (resources.EXT_frag_depth)
758 extBehavior["GL_EXT_frag_depth"] = EBhUndefined;
759 if (resources.EXT_shader_texture_lod)
760 extBehavior["GL_EXT_shader_texture_lod"] = EBhUndefined;
761 }
762