Initialize.cpp revision 70da3d432409368f214058c466fe0265b6b9a070 
1//
2// Copyright (c) 2002-2013 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 strings 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 "Initialize.h"
14
15#include "intermediate.h"
16
17void InsertBuiltInFunctions(GLenum type, 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 *int2 = new TType(EbtInt, 2);
25	TType *int3 = new TType(EbtInt, 3);
26	TType *int4 = new TType(EbtInt, 4);
27
28    //
29    // Angle and Trigonometric Functions.
30    //
31    symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "radians", float1);
32    symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "radians", float2);
33    symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "radians", float3);
34    symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "radians", float4);
35
36    symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "degrees", float1);
37    symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "degrees", float2);
38    symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "degrees", float3);
39    symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "degrees", float4);
40
41    symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "sin", float1);
42    symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "sin", float2);
43    symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "sin", float3);
44    symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "sin", float4);
45
46    symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "cos", float1);
47    symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "cos", float2);
48    symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "cos", float3);
49    symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "cos", float4);
50
51    symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "tan", float1);
52    symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "tan", float2);
53    symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "tan", float3);
54    symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "tan", float4);
55
56    symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "asin", float1);
57    symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "asin", float2);
58    symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "asin", float3);
59    symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "asin", float4);
60
61    symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "acos", float1);
62    symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "acos", float2);
63    symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "acos", float3);
64    symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "acos", float4);
65
66    symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "atan", float1, float1);
67    symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "atan", float2, float2);
68    symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "atan", float3, float3);
69    symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "atan", float4, float4);
70
71    symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "atan", float1);
72    symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "atan", float2);
73    symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "atan", float3);
74    symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "atan", float4);
75
76    //
77    // Exponential Functions.
78    //
79    symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "pow", float1, float1);
80    symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "pow", float2, float2);
81    symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "pow", float3, float3);
82    symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "pow", float4, float4);
83
84    symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "exp", float1);
85    symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "exp", float2);
86    symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "exp", float3);
87    symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "exp", float4);
88
89    symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "log", float1);
90    symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "log", float2);
91    symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "log", float3);
92    symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "log", float4);
93
94    symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "exp2", float1);
95    symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "exp2", float2);
96    symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "exp2", float3);
97    symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "exp2", float4);
98
99    symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "log2", float1);
100    symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "log2", float2);
101    symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "log2", float3);
102    symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "log2", float4);
103
104    symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "sqrt", float1);
105    symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "sqrt", float2);
106    symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "sqrt", float3);
107    symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "sqrt", float4);
108
109    symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "inversesqrt", float1);
110    symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "inversesqrt", float2);
111    symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "inversesqrt", float3);
112    symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "inversesqrt", float4);
113
114    //
115    // Common Functions.
116    //
117    symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "abs", float1);
118    symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "abs", float2);
119    symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "abs", float3);
120    symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "abs", float4);
121
122    symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "sign", float1);
123    symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "sign", float2);
124    symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "sign", float3);
125    symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "sign", float4);
126
127    symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "floor", float1);
128    symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "floor", float2);
129    symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "floor", float3);
130    symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "floor", float4);
131
132    symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "ceil", float1);
133    symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "ceil", float2);
134    symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "ceil", float3);
135    symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "ceil", float4);
136
137    symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "fract", float1);
138    symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "fract", float2);
139    symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "fract", float3);
140    symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "fract", float4);
141
142    symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "mod", float1, float1);
143    symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "mod", float2, float1);
144    symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "mod", float3, float1);
145    symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "mod", float4, float1);
146    symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "mod", float2, float2);
147    symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "mod", float3, float3);
148    symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "mod", float4, float4);
149
150    symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "min", float1, float1);
151    symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "min", float2, float1);
152    symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "min", float3, float1);
153    symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "min", float4, float1);
154    symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "min", float2, float2);
155    symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "min", float3, float3);
156    symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "min", float4, float4);
157
158    symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "max", float1, float1);
159    symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "max", float2, float1);
160    symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "max", float3, float1);
161    symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "max", float4, float1);
162    symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "max", float2, float2);
163    symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "max", float3, float3);
164    symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "max", float4, float4);
165
166    symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "clamp", float1, float1, float1);
167    symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "clamp", float2, float1, float1);
168    symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "clamp", float3, float1, float1);
169    symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "clamp", float4, float1, float1);
170    symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "clamp", float2, float2, float2);
171    symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "clamp", float3, float3, float3);
172    symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "clamp", float4, float4, float4);
173
174    symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "mix", float1, float1, float1);
175    symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "mix", float2, float2, float1);
176    symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "mix", float3, float3, float1);
177    symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "mix", float4, float4, float1);
178    symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "mix", float2, float2, float2);
179    symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "mix", float3, float3, float3);
180    symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "mix", float4, float4, float4);
181
182    symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "step", float1, float1);
183    symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "step", float2, float2);
184    symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "step", float3, float3);
185    symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "step", float4, float4);
186    symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "step", float1, float2);
187    symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "step", float1, float3);
188    symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "step", float1, float4);
189
190    symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "smoothstep", float1, float1, float1);
191    symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "smoothstep", float2, float2, float2);
192    symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "smoothstep", float3, float3, float3);
193    symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "smoothstep", float4, float4, float4);
194    symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "smoothstep", float1, float1, float2);
195    symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "smoothstep", float1, float1, float3);
196    symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "smoothstep", float1, float1, float4);
197
198    //
199    // Geometric Functions.
200    //
201    symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "length", float1);
202    symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "length", float2);
203    symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "length", float3);
204    symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "length", float4);
205
206    symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "distance", float1, float1);
207    symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "distance", float2, float2);
208    symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "distance", float3, float3);
209    symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "distance", float4, float4);
210
211    symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "dot", float1, float1);
212    symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "dot", float2, float2);
213    symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "dot", float3, float3);
214    symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "dot", float4, float4);
215
216    symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "cross", float3, float3);
217    symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "normalize", float1);
218    symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "normalize", float2);
219    symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "normalize", float3);
220    symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "normalize", float4);
221
222    symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "faceforward", float1, float1, float1);
223    symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "faceforward", float2, float2, float2);
224    symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "faceforward", float3, float3, float3);
225    symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "faceforward", float4, float4, float4);
226
227    symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "reflect", float1, float1);
228    symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "reflect", float2, float2);
229    symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "reflect", float3, float3);
230    symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "reflect", float4, float4);
231
232    symbolTable.insertBuiltIn(COMMON_BUILTINS, float1, "refract", float1, float1, float1);
233    symbolTable.insertBuiltIn(COMMON_BUILTINS, float2, "refract", float2, float2, float1);
234    symbolTable.insertBuiltIn(COMMON_BUILTINS, float3, "refract", float3, float3, float1);
235    symbolTable.insertBuiltIn(COMMON_BUILTINS, float4, "refract", float4, float4, float1);
236
237	TType *mat2 = new TType(EbtFloat, 2, true);
238	TType *mat3 = new TType(EbtFloat, 3, true);
239	TType *mat4 = new TType(EbtFloat, 4, true);
240
241    //
242    // Matrix Functions.
243    //
244    symbolTable.insertBuiltIn(COMMON_BUILTINS, mat2, "matrixCompMult", mat2, mat2);
245    symbolTable.insertBuiltIn(COMMON_BUILTINS, mat3, "matrixCompMult", mat3, mat3);
246    symbolTable.insertBuiltIn(COMMON_BUILTINS, mat4, "matrixCompMult", mat4, mat4);
247
248	TType *bool1 = new TType(EbtBool);
249	TType *bool2 = new TType(EbtBool, 2);
250	TType *bool3 = new TType(EbtBool, 3);
251	TType *bool4 = new TType(EbtBool, 4);
252
253    //
254    // Vector relational functions.
255    //
256    symbolTable.insertBuiltIn(COMMON_BUILTINS, bool2, "lessThan", float2, float2);
257    symbolTable.insertBuiltIn(COMMON_BUILTINS, bool3, "lessThan", float3, float3);
258    symbolTable.insertBuiltIn(COMMON_BUILTINS, bool4, "lessThan", float4, float4);
259
260    symbolTable.insertBuiltIn(COMMON_BUILTINS, bool2, "lessThan", int2, int2);
261    symbolTable.insertBuiltIn(COMMON_BUILTINS, bool3, "lessThan", int3, int3);
262    symbolTable.insertBuiltIn(COMMON_BUILTINS, bool4, "lessThan", int4, int4);
263
264    symbolTable.insertBuiltIn(COMMON_BUILTINS, bool2, "lessThanEqual", float2, float2);
265    symbolTable.insertBuiltIn(COMMON_BUILTINS, bool3, "lessThanEqual", float3, float3);
266    symbolTable.insertBuiltIn(COMMON_BUILTINS, bool4, "lessThanEqual", float4, float4);
267
268    symbolTable.insertBuiltIn(COMMON_BUILTINS, bool2, "lessThanEqual", int2, int2);
269    symbolTable.insertBuiltIn(COMMON_BUILTINS, bool3, "lessThanEqual", int3, int3);
270    symbolTable.insertBuiltIn(COMMON_BUILTINS, bool4, "lessThanEqual", int4, int4);
271
272    symbolTable.insertBuiltIn(COMMON_BUILTINS, bool2, "greaterThan", float2, float2);
273    symbolTable.insertBuiltIn(COMMON_BUILTINS, bool3, "greaterThan", float3, float3);
274    symbolTable.insertBuiltIn(COMMON_BUILTINS, bool4, "greaterThan", float4, float4);
275
276    symbolTable.insertBuiltIn(COMMON_BUILTINS, bool2, "greaterThan", int2, int2);
277    symbolTable.insertBuiltIn(COMMON_BUILTINS, bool3, "greaterThan", int3, int3);
278    symbolTable.insertBuiltIn(COMMON_BUILTINS, bool4, "greaterThan", int4, int4);
279
280    symbolTable.insertBuiltIn(COMMON_BUILTINS, bool2, "greaterThanEqual", float2, float2);
281    symbolTable.insertBuiltIn(COMMON_BUILTINS, bool3, "greaterThanEqual", float3, float3);
282    symbolTable.insertBuiltIn(COMMON_BUILTINS, bool4, "greaterThanEqual", float4, float4);
283
284    symbolTable.insertBuiltIn(COMMON_BUILTINS, bool2, "greaterThanEqual", int2, int2);
285    symbolTable.insertBuiltIn(COMMON_BUILTINS, bool3, "greaterThanEqual", int3, int3);
286    symbolTable.insertBuiltIn(COMMON_BUILTINS, bool4, "greaterThanEqual", int4, int4);
287
288    symbolTable.insertBuiltIn(COMMON_BUILTINS, bool2, "equal", float2, float2);
289    symbolTable.insertBuiltIn(COMMON_BUILTINS, bool3, "equal", float3, float3);
290    symbolTable.insertBuiltIn(COMMON_BUILTINS, bool4, "equal", float4, float4);
291
292    symbolTable.insertBuiltIn(COMMON_BUILTINS, bool2, "equal", int2, int2);
293    symbolTable.insertBuiltIn(COMMON_BUILTINS, bool3, "equal", int3, int3);
294    symbolTable.insertBuiltIn(COMMON_BUILTINS, bool4, "equal", int4, int4);
295
296    symbolTable.insertBuiltIn(COMMON_BUILTINS, bool2, "equal", bool2, bool2);
297    symbolTable.insertBuiltIn(COMMON_BUILTINS, bool3, "equal", bool3, bool3);
298    symbolTable.insertBuiltIn(COMMON_BUILTINS, bool4, "equal", bool4, bool4);
299
300    symbolTable.insertBuiltIn(COMMON_BUILTINS, bool2, "notEqual", float2, float2);
301    symbolTable.insertBuiltIn(COMMON_BUILTINS, bool3, "notEqual", float3, float3);
302    symbolTable.insertBuiltIn(COMMON_BUILTINS, bool4, "notEqual", float4, float4);
303
304    symbolTable.insertBuiltIn(COMMON_BUILTINS, bool2, "notEqual", int2, int2);
305    symbolTable.insertBuiltIn(COMMON_BUILTINS, bool3, "notEqual", int3, int3);
306    symbolTable.insertBuiltIn(COMMON_BUILTINS, bool4, "notEqual", int4, int4);
307
308    symbolTable.insertBuiltIn(COMMON_BUILTINS, bool2, "notEqual", bool2, bool2);
309    symbolTable.insertBuiltIn(COMMON_BUILTINS, bool3, "notEqual", bool3, bool3);
310    symbolTable.insertBuiltIn(COMMON_BUILTINS, bool4, "notEqual", bool4, bool4);
311
312    symbolTable.insertBuiltIn(COMMON_BUILTINS, bool1, "any", bool2);
313    symbolTable.insertBuiltIn(COMMON_BUILTINS, bool1, "any", bool3);
314    symbolTable.insertBuiltIn(COMMON_BUILTINS, bool1, "any", bool4);
315
316    symbolTable.insertBuiltIn(COMMON_BUILTINS, bool1, "all", bool2);
317    symbolTable.insertBuiltIn(COMMON_BUILTINS, bool1, "all", bool3);
318    symbolTable.insertBuiltIn(COMMON_BUILTINS, bool1, "all", bool4);
319
320    symbolTable.insertBuiltIn(COMMON_BUILTINS, bool2, "not", bool2);
321    symbolTable.insertBuiltIn(COMMON_BUILTINS, bool3, "not", bool3);
322    symbolTable.insertBuiltIn(COMMON_BUILTINS, bool4, "not", bool4);
323
324	TType *sampler2D = new TType(EbtSampler2D);
325	TType *samplerCube = new TType(EbtSamplerCube);
326	TType *sampler3D = new TType(EbtSampler3D);
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	symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture3D", sampler3D, 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		symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture3D", samplerExternalOES, float3);
345    }
346
347	if(type == GL_FRAGMENT_SHADER)
348	{
349        symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2D", sampler2D, float2, float1);
350        symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2DProj", sampler2D, float3, float1);
351        symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2DProj", sampler2D, float4, float1);
352        symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "textureCube", samplerCube, float3, float1);
353
354		if(resources.OES_standard_derivatives)
355		{
356			symbolTable.insertBuiltIn(ESSL1_BUILTINS, float1, "dFdx", float1);
357			symbolTable.insertBuiltIn(ESSL1_BUILTINS, float2, "dFdx", float2);
358			symbolTable.insertBuiltIn(ESSL1_BUILTINS, float3, "dFdx", float3);
359			symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "dFdx", float4);
360
361			symbolTable.insertBuiltIn(ESSL1_BUILTINS, float1, "dFdy", float1);
362			symbolTable.insertBuiltIn(ESSL1_BUILTINS, float2, "dFdy", float2);
363			symbolTable.insertBuiltIn(ESSL1_BUILTINS, float3, "dFdy", float3);
364			symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "dFdy", float4);
365
366			symbolTable.insertBuiltIn(ESSL1_BUILTINS, float1, "fwidth", float1);
367			symbolTable.insertBuiltIn(ESSL1_BUILTINS, float2, "fwidth", float2);
368			symbolTable.insertBuiltIn(ESSL1_BUILTINS, float3, "fwidth", float3);
369			symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "fwidth", float4);
370		}
371	}
372
373	if(type == GL_VERTEX_SHADER)
374	{
375		symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2DLod", sampler2D, float2, float1);
376		symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2DProjLod", sampler2D, float3, float1);
377		symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture2DProjLod", sampler2D, float4, float1);
378		symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "textureCubeLod", samplerCube, float3, float1);
379		symbolTable.insertBuiltIn(ESSL1_BUILTINS, float4, "texture3DLod", sampler3D, float3, float1);
380	}
381
382    //
383    // Depth range in window coordinates
384    //
385	TTypeList *members = NewPoolTTypeList();
386	TTypeLine near = {new TType(EbtFloat, EbpHigh, EvqGlobal, 1), 0};
387	TTypeLine far = {new TType(EbtFloat, EbpHigh, EvqGlobal, 1), 0};
388	TTypeLine diff = {new TType(EbtFloat, EbpHigh, EvqGlobal, 1), 0};
389	near.type->setFieldName("near");
390	far.type->setFieldName("far");
391	diff.type->setFieldName("diff");
392	members->push_back(near);
393	members->push_back(far);
394	members->push_back(diff);
395	TVariable *depthRangeParameters = new TVariable(NewPoolTString("gl_DepthRangeParameters"), TType(members, "gl_DepthRangeParameters"), true);
396	symbolTable.insert(COMMON_BUILTINS, *depthRangeParameters);
397	TVariable *depthRange = new TVariable(NewPoolTString("gl_DepthRange"), TType(members, "gl_DepthRangeParameters"));
398	depthRange->setQualifier(EvqUniform);
399	symbolTable.insert(COMMON_BUILTINS, *depthRange);
400
401    //
402    // Implementation dependent built-in constants.
403    //
404    symbolTable.insertConstInt(COMMON_BUILTINS, "gl_MaxVertexAttribs", resources.MaxVertexAttribs);
405    symbolTable.insertConstInt(COMMON_BUILTINS, "gl_MaxVertexUniformVectors", resources.MaxVertexUniformVectors);
406    symbolTable.insertConstInt(COMMON_BUILTINS, "gl_MaxVertexTextureImageUnits", resources.MaxVertexTextureImageUnits);
407    symbolTable.insertConstInt(COMMON_BUILTINS, "gl_MaxCombinedTextureImageUnits", resources.MaxCombinedTextureImageUnits);
408    symbolTable.insertConstInt(COMMON_BUILTINS, "gl_MaxTextureImageUnits", resources.MaxTextureImageUnits);
409    symbolTable.insertConstInt(COMMON_BUILTINS, "gl_MaxFragmentUniformVectors", resources.MaxFragmentUniformVectors);
410    symbolTable.insertConstInt(ESSL1_BUILTINS, "gl_MaxVaryingVectors", resources.MaxVaryingVectors);
411    symbolTable.insertConstInt(ESSL1_BUILTINS, "gl_MaxDrawBuffers", resources.MaxDrawBuffers);
412}
413
414void IdentifyBuiltIns(GLenum shaderType,
415                      const ShBuiltInResources &resources,
416                      TSymbolTable &symbolTable)
417{
418    //
419    // First, insert some special built-in variables that are not in
420    // the built-in header files.
421    //
422    switch(shaderType)
423	{
424    case GL_FRAGMENT_SHADER:
425        symbolTable.insert(COMMON_BUILTINS, *new TVariable(NewPoolTString("gl_FragCoord"), TType(EbtFloat, EbpMedium, EvqFragCoord,   4)));
426        symbolTable.insert(COMMON_BUILTINS, *new TVariable(NewPoolTString("gl_FrontFacing"), TType(EbtBool,  EbpUndefined, EvqFrontFacing, 1)));
427        symbolTable.insert(COMMON_BUILTINS, *new TVariable(NewPoolTString("gl_PointCoord"), TType(EbtFloat, EbpMedium, EvqPointCoord,  2)));
428        symbolTable.insert(ESSL1_BUILTINS, *new TVariable(NewPoolTString("gl_FragColor"), TType(EbtFloat, EbpMedium, EvqFragColor,   4)));
429        symbolTable.insert(ESSL1_BUILTINS, *new TVariable(NewPoolTString("gl_FragData[gl_MaxDrawBuffers]"), TType(EbtFloat, EbpMedium, EvqFragData,    4)));
430        break;
431    case GL_VERTEX_SHADER:
432        symbolTable.insert(COMMON_BUILTINS, *new TVariable(NewPoolTString("gl_Position"), TType(EbtFloat, EbpHigh, EvqPosition,    4)));
433        symbolTable.insert(COMMON_BUILTINS, *new TVariable(NewPoolTString("gl_PointSize"), TType(EbtFloat, EbpMedium, EvqPointSize,   1)));
434        break;
435    default: assert(false && "Language not supported");
436    }
437
438    //
439    // Next, identify which built-ins from the already loaded headers have
440    // a mapping to an operator.  Those that are not identified as such are
441    // expected to be resolved through a library of functions, versus as
442    // operations.
443    //
444    symbolTable.relateToOperator(COMMON_BUILTINS, "matrixCompMult",   EOpMul);
445
446    symbolTable.relateToOperator(COMMON_BUILTINS, "equal",            EOpVectorEqual);
447    symbolTable.relateToOperator(COMMON_BUILTINS, "notEqual",         EOpVectorNotEqual);
448    symbolTable.relateToOperator(COMMON_BUILTINS, "lessThan",         EOpLessThan);
449    symbolTable.relateToOperator(COMMON_BUILTINS, "greaterThan",      EOpGreaterThan);
450    symbolTable.relateToOperator(COMMON_BUILTINS, "lessThanEqual",    EOpLessThanEqual);
451    symbolTable.relateToOperator(COMMON_BUILTINS, "greaterThanEqual", EOpGreaterThanEqual);
452
453    symbolTable.relateToOperator(COMMON_BUILTINS, "radians",      EOpRadians);
454    symbolTable.relateToOperator(COMMON_BUILTINS, "degrees",      EOpDegrees);
455    symbolTable.relateToOperator(COMMON_BUILTINS, "sin",          EOpSin);
456    symbolTable.relateToOperator(COMMON_BUILTINS, "cos",          EOpCos);
457    symbolTable.relateToOperator(COMMON_BUILTINS, "tan",          EOpTan);
458    symbolTable.relateToOperator(COMMON_BUILTINS, "asin",         EOpAsin);
459    symbolTable.relateToOperator(COMMON_BUILTINS, "acos",         EOpAcos);
460    symbolTable.relateToOperator(COMMON_BUILTINS, "atan",         EOpAtan);
461
462    symbolTable.relateToOperator(COMMON_BUILTINS, "pow",          EOpPow);
463    symbolTable.relateToOperator(COMMON_BUILTINS, "exp2",         EOpExp2);
464    symbolTable.relateToOperator(COMMON_BUILTINS, "log",          EOpLog);
465    symbolTable.relateToOperator(COMMON_BUILTINS, "exp",          EOpExp);
466    symbolTable.relateToOperator(COMMON_BUILTINS, "log2",         EOpLog2);
467    symbolTable.relateToOperator(COMMON_BUILTINS, "sqrt",         EOpSqrt);
468    symbolTable.relateToOperator(COMMON_BUILTINS, "inversesqrt",  EOpInverseSqrt);
469
470    symbolTable.relateToOperator(COMMON_BUILTINS, "abs",          EOpAbs);
471    symbolTable.relateToOperator(COMMON_BUILTINS, "sign",         EOpSign);
472    symbolTable.relateToOperator(COMMON_BUILTINS, "floor",        EOpFloor);
473    symbolTable.relateToOperator(COMMON_BUILTINS, "ceil",         EOpCeil);
474    symbolTable.relateToOperator(COMMON_BUILTINS, "fract",        EOpFract);
475    symbolTable.relateToOperator(COMMON_BUILTINS, "mod",          EOpMod);
476    symbolTable.relateToOperator(COMMON_BUILTINS, "min",          EOpMin);
477    symbolTable.relateToOperator(COMMON_BUILTINS, "max",          EOpMax);
478    symbolTable.relateToOperator(COMMON_BUILTINS, "clamp",        EOpClamp);
479    symbolTable.relateToOperator(COMMON_BUILTINS, "mix",          EOpMix);
480    symbolTable.relateToOperator(COMMON_BUILTINS, "step",         EOpStep);
481    symbolTable.relateToOperator(COMMON_BUILTINS, "smoothstep",   EOpSmoothStep);
482
483    symbolTable.relateToOperator(COMMON_BUILTINS, "length",       EOpLength);
484    symbolTable.relateToOperator(COMMON_BUILTINS, "distance",     EOpDistance);
485    symbolTable.relateToOperator(COMMON_BUILTINS, "dot",          EOpDot);
486    symbolTable.relateToOperator(COMMON_BUILTINS, "cross",        EOpCross);
487    symbolTable.relateToOperator(COMMON_BUILTINS, "normalize",    EOpNormalize);
488    symbolTable.relateToOperator(COMMON_BUILTINS, "faceforward",  EOpFaceForward);
489    symbolTable.relateToOperator(COMMON_BUILTINS, "reflect",      EOpReflect);
490    symbolTable.relateToOperator(COMMON_BUILTINS, "refract",      EOpRefract);
491
492    symbolTable.relateToOperator(COMMON_BUILTINS, "any",          EOpAny);
493    symbolTable.relateToOperator(COMMON_BUILTINS, "all",          EOpAll);
494    symbolTable.relateToOperator(COMMON_BUILTINS, "not",          EOpVectorLogicalNot);
495
496    // Map language-specific operators.
497    switch(shaderType)
498	{
499    case GL_VERTEX_SHADER:
500        break;
501    case GL_FRAGMENT_SHADER:
502        if(resources.OES_standard_derivatives)
503		{
504            symbolTable.relateToOperator(ESSL1_BUILTINS, "dFdx",   EOpDFdx);
505            symbolTable.relateToOperator(ESSL1_BUILTINS, "dFdy",   EOpDFdy);
506            symbolTable.relateToOperator(ESSL1_BUILTINS, "fwidth", EOpFwidth);
507
508            symbolTable.relateToExtension(ESSL1_BUILTINS, "dFdx", "GL_OES_standard_derivatives");
509            symbolTable.relateToExtension(ESSL1_BUILTINS, "dFdy", "GL_OES_standard_derivatives");
510            symbolTable.relateToExtension(ESSL1_BUILTINS, "fwidth", "GL_OES_standard_derivatives");
511        }
512        break;
513    default: break;
514    }
515
516    // Finally add resource-specific variables.
517    switch(shaderType)
518    {
519    case GL_FRAGMENT_SHADER:
520		{
521            // Set up gl_FragData.  The array size.
522            TType fragData(EbtFloat, EbpMedium, EvqFragData, 4, false, true);
523            fragData.setArraySize(resources.MaxDrawBuffers);
524            symbolTable.insert(ESSL1_BUILTINS, *new TVariable(NewPoolTString("gl_FragData"), fragData));
525		}
526		break;
527    default: break;
528    }
529}
530
531void InitExtensionBehavior(const ShBuiltInResources& resources,
532                           TExtensionBehavior& extBehavior)
533{
534    if(resources.OES_standard_derivatives)
535        extBehavior["GL_OES_standard_derivatives"] = EBhUndefined;
536	if(resources.OES_fragment_precision_high)
537        extBehavior["GL_FRAGMENT_PRECISION_HIGH"] = EBhUndefined;
538    if(resources.OES_EGL_image_external)
539        extBehavior["GL_OES_EGL_image_external"] = EBhUndefined;
540}
541