1 /*
2  * Copyright 2011 Google Inc.
3  *
4  * Use of this source code is governed by a BSD-style license that can be
5  * found in the LICENSE file.
6  */
7 
8 
9 
10 #ifndef GrGLDefines_DEFINED
11 #define GrGLDefines_DEFINED
12 
13 /* Profiles */
14 #define GR_GL_CONTEXT_PROFILE_MASK              0x9126
15 #define GR_GL_CONTEXT_CORE_PROFILE_BIT          0x00000001
16 #define GR_GL_CONTEXT_COMPATIBILITY_PROFILE_BIT 0x00000002
17 
18 // The following constants consist of the intersection of GL constants
19 // exported by GLES 1.0, GLES 2.0, and desktop GL required by the system.
20 
21 #define GR_GL_DEPTH_BUFFER_BIT               0x00000100
22 #define GR_GL_STENCIL_BUFFER_BIT             0x00000400
23 #define GR_GL_COLOR_BUFFER_BIT               0x00004000
24 
25 /* Boolean */
26 #define GR_GL_FALSE                          0
27 #define GR_GL_TRUE                           1
28 
29 /* BeginMode */
30 #define GR_GL_POINTS                         0x0000
31 #define GR_GL_LINES                          0x0001
32 #define GR_GL_LINE_LOOP                      0x0002
33 #define GR_GL_LINE_STRIP                     0x0003
34 #define GR_GL_TRIANGLES                      0x0004
35 #define GR_GL_TRIANGLE_STRIP                 0x0005
36 #define GR_GL_TRIANGLE_FAN                   0x0006
37 
38 /* AlphaFunction (not supported in ES20) */
39 /*      GL_NEVER */
40 /*      GL_LESS */
41 /*      GL_EQUAL */
42 /*      GL_LEQUAL */
43 /*      GL_GREATER */
44 /*      GL_NOTEQUAL */
45 /*      GL_GEQUAL */
46 /*      GL_ALWAYS */
47 
48 /* Basic OpenGL blend equations */
49 #define GR_GL_FUNC_ADD                       0x8006
50 #define GR_GL_FUNC_SUBTRACT                  0x800A
51 #define GR_GL_FUNC_REVERSE_SUBTRACT          0x800B
52 
53 /* GL_KHR_blend_equation_advanced */
54 #define GR_GL_SCREEN                         0x9295
55 #define GR_GL_OVERLAY                        0x9296
56 #define GR_GL_DARKEN                         0x9297
57 #define GR_GL_LIGHTEN                        0x9298
58 #define GR_GL_COLORDODGE                     0x9299
59 #define GR_GL_COLORBURN                      0x929A
60 #define GR_GL_HARDLIGHT                      0x929B
61 #define GR_GL_SOFTLIGHT                      0x929C
62 #define GR_GL_DIFFERENCE                     0x929E
63 #define GR_GL_EXCLUSION                      0x92A0
64 #define GR_GL_MULTIPLY                       0x9294
65 #define GR_GL_HSL_HUE                        0x92AD
66 #define GR_GL_HSL_SATURATION                 0x92AE
67 #define GR_GL_HSL_COLOR                      0x92AF
68 #define GR_GL_HSL_LUMINOSITY                 0x92B0
69 
70 /* BlendingFactorDest */
71 #define GR_GL_ZERO                           0
72 #define GR_GL_ONE                            1
73 #define GR_GL_SRC_COLOR                      0x0300
74 #define GR_GL_ONE_MINUS_SRC_COLOR            0x0301
75 #define GR_GL_SRC_ALPHA                      0x0302
76 #define GR_GL_ONE_MINUS_SRC_ALPHA            0x0303
77 #define GR_GL_DST_ALPHA                      0x0304
78 #define GR_GL_ONE_MINUS_DST_ALPHA            0x0305
79 
80 /* BlendingFactorSrc */
81 /*      GL_ZERO */
82 /*      GL_ONE */
83 #define GR_GL_DST_COLOR                      0x0306
84 #define GR_GL_ONE_MINUS_DST_COLOR            0x0307
85 #define GR_GL_SRC_ALPHA_SATURATE             0x0308
86 /*      GL_SRC_ALPHA */
87 /*      GL_ONE_MINUS_SRC_ALPHA */
88 /*      GL_DST_ALPHA */
89 /*      GL_ONE_MINUS_DST_ALPHA */
90 
91 /* ExtendedBlendFactors */
92 #define GR_GL_SRC1_COLOR                     0x88F9
93 #define GR_GL_ONE_MINUS_SRC1_COLOR           0x88FA
94 /*      GL_SRC1_ALPHA */
95 #define GR_GL_ONE_MINUS_SRC1_ALPHA           0x88FB
96 
97 /* Separate Blend Functions */
98 #define GR_GL_BLEND_DST_RGB                  0x80C8
99 #define GR_GL_BLEND_SRC_RGB                  0x80C9
100 #define GR_GL_BLEND_DST_ALPHA                0x80CA
101 #define GR_GL_BLEND_SRC_ALPHA                0x80CB
102 #define GR_GL_CONSTANT_COLOR                 0x8001
103 #define GR_GL_ONE_MINUS_CONSTANT_COLOR       0x8002
104 #define GR_GL_CONSTANT_ALPHA                 0x8003
105 #define GR_GL_ONE_MINUS_CONSTANT_ALPHA       0x8004
106 #define GR_GL_BLEND_COLOR                    0x8005
107 
108 /* Buffer Objects */
109 #define GR_GL_ARRAY_BUFFER                   0x8892
110 #define GR_GL_ELEMENT_ARRAY_BUFFER           0x8893
111 #define GR_GL_ARRAY_BUFFER_BINDING           0x8894
112 #define GR_GL_ELEMENT_ARRAY_BUFFER_BINDING   0x8895
113 
114 #define GR_GL_STREAM_DRAW                    0x88E0
115 #define GR_GL_STATIC_DRAW                    0x88E4
116 #define GR_GL_DYNAMIC_DRAW                   0x88E8
117 
118 #define GR_GL_BUFFER_SIZE                    0x8764
119 #define GR_GL_BUFFER_USAGE                   0x8765
120 
121 #define GR_GL_CURRENT_VERTEX_ATTRIB          0x8626
122 
123 /* CullFaceMode */
124 #define GR_GL_FRONT                          0x0404
125 #define GR_GL_BACK                           0x0405
126 #define GR_GL_FRONT_AND_BACK                 0x0408
127 
128 /* DepthFunction */
129 /*      GL_NEVER */
130 /*      GL_LESS */
131 /*      GL_EQUAL */
132 /*      GL_LEQUAL */
133 /*      GL_GREATER */
134 /*      GL_NOTEQUAL */
135 /*      GL_GEQUAL */
136 /*      GL_ALWAYS */
137 
138 /* EnableCap */
139 #define GR_GL_TEXTURE_2D                     0x0DE1
140 #define GR_GL_CULL_FACE                      0x0B44
141 #define GR_GL_BLEND                          0x0BE2
142 #define GR_GL_DITHER                         0x0BD0
143 #define GR_GL_STENCIL_TEST                   0x0B90
144 #define GR_GL_DEPTH_TEST                     0x0B71
145 #define GR_GL_SCISSOR_TEST                   0x0C11
146 #define GR_GL_POLYGON_OFFSET_FILL            0x8037
147 #define GR_GL_SAMPLE_ALPHA_TO_COVERAGE       0x809E
148 #define GR_GL_SAMPLE_COVERAGE                0x80A0
149 #define GR_GL_POLYGON_OFFSET_FILL            0x8037
150 #define GR_GL_POLYGON_SMOOTH                 0x0B41
151 #define GR_GL_POLYGON_STIPPLE                0x0B42
152 #define GR_GL_COLOR_LOGIC_OP                 0x0BF2
153 #define GR_GL_COLOR_TABLE                    0x80D0
154 #define GR_GL_INDEX_LOGIC_OP                 0x0BF1
155 #define GR_GL_VERTEX_PROGRAM_POINT_SIZE      0x8642
156 #define GR_GL_LINE_STIPPLE                   0x0B24
157 
158 /* ErrorCode */
159 #define GR_GL_NO_ERROR                       0
160 #define GR_GL_INVALID_ENUM                   0x0500
161 #define GR_GL_INVALID_VALUE                  0x0501
162 #define GR_GL_INVALID_OPERATION              0x0502
163 #define GR_GL_OUT_OF_MEMORY                  0x0505
164 #define GR_GL_CONTEXT_LOST                   0x300E  // TODO(gman): What value?
165 
166 /* FrontFaceDirection */
167 #define GR_GL_CW                             0x0900
168 #define GR_GL_CCW                            0x0901
169 
170 /* GetPName */
171 #define GR_GL_LINE_WIDTH                     0x0B21
172 #define GR_GL_ALIASED_POINT_SIZE_RANGE       0x846D
173 #define GR_GL_ALIASED_LINE_WIDTH_RANGE       0x846E
174 #define GR_GL_CULL_FACE_MODE                 0x0B45
175 #define GR_GL_FRONT_FACE                     0x0B46
176 #define GR_GL_DEPTH_RANGE                    0x0B70
177 #define GR_GL_DEPTH_WRITEMASK                0x0B72
178 #define GR_GL_DEPTH_CLEAR_VALUE              0x0B73
179 #define GR_GL_DEPTH_FUNC                     0x0B74
180 #define GR_GL_STENCIL_CLEAR_VALUE            0x0B91
181 #define GR_GL_STENCIL_FUNC                   0x0B92
182 #define GR_GL_STENCIL_FAIL                   0x0B94
183 #define GR_GL_STENCIL_PASS_DEPTH_FAIL        0x0B95
184 #define GR_GL_STENCIL_PASS_DEPTH_PASS        0x0B96
185 #define GR_GL_STENCIL_REF                    0x0B97
186 #define GR_GL_STENCIL_VALUE_MASK             0x0B93
187 #define GR_GL_STENCIL_WRITEMASK              0x0B98
188 #define GR_GL_STENCIL_BACK_FUNC              0x8800
189 #define GR_GL_STENCIL_BACK_FAIL              0x8801
190 #define GR_GL_STENCIL_BACK_PASS_DEPTH_FAIL   0x8802
191 #define GR_GL_STENCIL_BACK_PASS_DEPTH_PASS   0x8803
192 #define GR_GL_STENCIL_BACK_REF               0x8CA3
193 #define GR_GL_STENCIL_BACK_VALUE_MASK        0x8CA4
194 #define GR_GL_STENCIL_BACK_WRITEMASK         0x8CA5
195 #define GR_GL_VIEWPORT                       0x0BA2
196 #define GR_GL_SCISSOR_BOX                    0x0C10
197 /*      GL_SCISSOR_TEST */
198 #define GR_GL_COLOR_CLEAR_VALUE              0x0C22
199 #define GR_GL_COLOR_WRITEMASK                0x0C23
200 #define GR_GL_UNPACK_ALIGNMENT               0x0CF5
201 #define GR_GL_UNPACK_FLIP_Y                  0x9240
202 #define GR_GL_PACK_ALIGNMENT                 0x0D05
203 #define GR_GL_PACK_REVERSE_ROW_ORDER         0x93A4
204 #define GR_GL_MAX_TEXTURE_SIZE               0x0D33
205 #define GR_GL_MAX_VIEWPORT_DIMS              0x0D3A
206 #define GR_GL_SUBPIXEL_BITS                  0x0D50
207 #define GR_GL_RED_BITS                       0x0D52
208 #define GR_GL_GREEN_BITS                     0x0D53
209 #define GR_GL_BLUE_BITS                      0x0D54
210 #define GR_GL_ALPHA_BITS                     0x0D55
211 #define GR_GL_DEPTH_BITS                     0x0D56
212 #define GR_GL_STENCIL_BITS                   0x0D57
213 #define GR_GL_POLYGON_OFFSET_UNITS           0x2A00
214 /*      GL_POLYGON_OFFSET_FILL */
215 #define GR_GL_POLYGON_OFFSET_FACTOR          0x8038
216 #define GR_GL_TEXTURE_BINDING_2D             0x8069
217 #define GR_GL_SAMPLE_BUFFERS                 0x80A8
218 #define GR_GL_SAMPLES                        0x80A9
219 #define GR_GL_SAMPLE_COVERAGE_VALUE          0x80AA
220 #define GR_GL_SAMPLE_COVERAGE_INVERT         0x80AB
221 #define GR_GL_RENDERBUFFER_COVERAGE_SAMPLES  0x8CAB
222 #define GR_GL_RENDERBUFFER_COLOR_SAMPLES     0x8E10
223 #define GR_GL_MAX_MULTISAMPLE_COVERAGE_MODES 0x8E11
224 #define GR_GL_MULTISAMPLE_COVERAGE_MODES     0x8E12
225 
226 /* GetTextureParameter */
227 /*      GL_TEXTURE_MAG_FILTER */
228 /*      GL_TEXTURE_MIN_FILTER */
229 /*      GL_TEXTURE_WRAP_S */
230 /*      GL_TEXTURE_WRAP_T */
231 
232 #define GR_GL_NUM_COMPRESSED_TEXTURE_FORMATS 0x86A2
233 #define GR_GL_COMPRESSED_TEXTURE_FORMATS     0x86A3
234 
235 /* Compressed Texture Formats */
236 #define GR_GL_COMPRESSED_RGB_S3TC_DXT1_EXT             0x83F0
237 #define GR_GL_COMPRESSED_RGBA_S3TC_DXT1_EXT            0x83F1
238 #define GR_GL_COMPRESSED_RGBA_S3TC_DXT3_EXT            0x83F2
239 #define GR_GL_COMPRESSED_RGBA_S3TC_DXT5_EXT            0x83F3
240 
241 #define GR_GL_COMPRESSED_RGB_PVRTC_4BPPV1_IMG          0x8C00
242 #define GR_GL_COMPRESSED_RGB_PVRTC_2BPPV1_IMG          0x8C01
243 #define GR_GL_COMPRESSED_RGBA_PVRTC_4BPPV1_IMG         0x8C02
244 #define GR_GL_COMPRESSED_RGBA_PVRTC_2BPPV1_IMG         0x8C03
245 
246 #define GR_GL_COMPRESSED_RGBA_PVRTC_2BPPV2_IMG         0x9137
247 #define GR_GL_COMPRESSED_RGBA_PVRTC_4BPPV2_IMG         0x9138
248 
249 #define GR_GL_COMPRESSED_ETC1_RGB8                     0x8D64
250 
251 #define GR_GL_COMPRESSED_R11_EAC                       0x9270
252 #define GR_GL_COMPRESSED_SIGNED_R11_EAC                0x9271
253 #define GR_GL_COMPRESSED_RG11_EAC                      0x9272
254 #define GR_GL_COMPRESSED_SIGNED_RG11_EAC               0x9273
255 
256 #define GR_GL_COMPRESSED_RGB8_ETC2                     0x9274
257 #define GR_GL_COMPRESSED_SRGB8                         0x9275
258 #define GR_GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1      0x9276
259 #define GR_GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1     0x9277
260 #define GR_GL_COMPRESSED_RGBA8_ETC2                    0x9278
261 #define GR_GL_COMPRESSED_SRGB8_ALPHA8_ETC2             0x9279
262 
263 #define GR_GL_COMPRESSED_LUMINANCE_LATC1               0x8C70
264 #define GR_GL_COMPRESSED_SIGNED_LUMINANCE_LATC1        0x8C71
265 #define GR_GL_COMPRESSED_LUMINANCE_ALPHA_LATC2         0x8C72
266 #define GR_GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2  0x8C73
267 
268 #define GR_GL_COMPRESSED_RED_RGTC1                     0x8DBB
269 #define GR_GL_COMPRESSED_SIGNED_RED_RGTC1              0x8DBC
270 #define GR_GL_COMPRESSED_RED_GREEN_RGTC2               0x8DBD
271 #define GR_GL_COMPRESSED_SIGNED_RED_GREEN_RGTC2        0x8DBE
272 
273 #define GR_GL_COMPRESSED_3DC_X                         0x87F9
274 #define GR_GL_COMPRESSED_3DC_XY                        0x87FA
275 
276 #define GR_GL_COMPRESSED_RGBA_BPTC_UNORM               0x8E8C
277 #define GR_GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM         0x8E8D
278 #define GR_GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT         0x8E8E
279 #define GR_GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT       0x8E8F
280 
281 #define GR_GL_COMPRESSED_RGBA_ASTC_4x4_KHR             0x93B0
282 #define GR_GL_COMPRESSED_RGBA_ASTC_5x4_KHR             0x93B1
283 #define GR_GL_COMPRESSED_RGBA_ASTC_5x5_KHR             0x93B2
284 #define GR_GL_COMPRESSED_RGBA_ASTC_6x5_KHR             0x93B3
285 #define GR_GL_COMPRESSED_RGBA_ASTC_6x6_KHR             0x93B4
286 #define GR_GL_COMPRESSED_RGBA_ASTC_8x5_KHR             0x93B5
287 #define GR_GL_COMPRESSED_RGBA_ASTC_8x6_KHR             0x93B6
288 #define GR_GL_COMPRESSED_RGBA_ASTC_8x8_KHR             0x93B7
289 #define GR_GL_COMPRESSED_RGBA_ASTC_10x5_KHR            0x93B8
290 #define GR_GL_COMPRESSED_RGBA_ASTC_10x6_KHR            0x93B9
291 #define GR_GL_COMPRESSED_RGBA_ASTC_10x8_KHR            0x93BA
292 #define GR_GL_COMPRESSED_RGBA_ASTC_10x10_KHR           0x93BB
293 #define GR_GL_COMPRESSED_RGBA_ASTC_12x10_KHR           0x93BC
294 #define GR_GL_COMPRESSED_RGBA_ASTC_12x12_KHR           0x93BD
295 
296 #define GR_GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4_KHR     0x93D0
297 #define GR_GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x4_KHR     0x93D1
298 #define GR_GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5_KHR     0x93D2
299 #define GR_GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x5_KHR     0x93D3
300 #define GR_GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6_KHR     0x93D4
301 #define GR_GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x5_KHR     0x93D5
302 #define GR_GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x6_KHR     0x93D6
303 #define GR_GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x8_KHR     0x93D7
304 #define GR_GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x5_KHR    0x93D8
305 #define GR_GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x6_KHR    0x93D9
306 #define GR_GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x8_KHR    0x93DA
307 #define GR_GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x10_KHR   0x93DB
308 #define GR_GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x10_KHR   0x93DC
309 #define GR_GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x12_KHR   0x93DD
310 
311 /* HintMode */
312 #define GR_GL_DONT_CARE                      0x1100
313 #define GR_GL_FASTEST                        0x1101
314 #define GR_GL_NICEST                         0x1102
315 
316 /* HintTarget */
317 #define GR_GL_GENERATE_MIPMAP_HINT            0x8192
318 
319 /* DataType */
320 #define GR_GL_BYTE                           0x1400
321 #define GR_GL_UNSIGNED_BYTE                  0x1401
322 #define GR_GL_SHORT                          0x1402
323 #define GR_GL_UNSIGNED_SHORT                 0x1403
324 #define GR_GL_INT                            0x1404
325 #define GR_GL_UNSIGNED_INT                   0x1405
326 #define GR_GL_FLOAT                          0x1406
327 #define GR_GL_HALF_FLOAT                     0x140B
328 #define GR_GL_FIXED                          0x140C
329 #define GR_GL_HALF_FLOAT_OES                 0x8D61
330 
331 /* Lighting */
332 #define GR_GL_LIGHTING                       0x0B50
333 #define GR_GL_LIGHT0                         0x4000
334 #define GR_GL_LIGHT1                         0x4001
335 #define GR_GL_LIGHT2                         0x4002
336 #define GR_GL_LIGHT3                         0x4003
337 #define GR_GL_LIGHT4                         0x4004
338 #define GR_GL_LIGHT5                         0x4005
339 #define GR_GL_LIGHT6                         0x4006
340 #define GR_GL_LIGHT7                         0x4007
341 #define GR_GL_SPOT_EXPONENT                  0x1205
342 #define GR_GL_SPOT_CUTOFF                    0x1206
343 #define GR_GL_CONSTANT_ATTENUATION           0x1207
344 #define GR_GL_LINEAR_ATTENUATION             0x1208
345 #define GR_GL_QUADRATIC_ATTENUATION          0x1209
346 #define GR_GL_AMBIENT                        0x1200
347 #define GR_GL_DIFFUSE                        0x1201
348 #define GR_GL_SPECULAR                       0x1202
349 #define GR_GL_SHININESS                      0x1601
350 #define GR_GL_EMISSION                       0x1600
351 #define GR_GL_POSITION                       0x1203
352 #define GR_GL_SPOT_DIRECTION                 0x1204
353 #define GR_GL_AMBIENT_AND_DIFFUSE            0x1602
354 #define GR_GL_COLOR_INDEXES                  0x1603
355 #define GR_GL_LIGHT_MODEL_TWO_SIDE           0x0B52
356 #define GR_GL_LIGHT_MODEL_LOCAL_VIEWER       0x0B51
357 #define GR_GL_LIGHT_MODEL_AMBIENT            0x0B53
358 #define GR_GL_FRONT_AND_BACK                 0x0408
359 #define GR_GL_SHADE_MODEL                    0x0B54
360 #define GR_GL_FLAT                           0x1D00
361 #define GR_GL_SMOOTH                         0x1D01
362 #define GR_GL_COLOR_MATERIAL                 0x0B57
363 #define GR_GL_COLOR_MATERIAL_FACE            0x0B55
364 #define GR_GL_COLOR_MATERIAL_PARAMETER       0x0B56
365 #define GR_GL_NORMALIZE                      0x0BA1
366 
367 /* Matrix Mode */
368 #define GR_GL_MATRIX_MODE                    0x0BA0
369 #define GR_GL_MODELVIEW                      0x1700
370 #define GR_GL_PROJECTION                     0x1701
371 #define GR_GL_TEXTURE                        0x1702
372 
373 /* multisample */
374 #define GR_GL_MULTISAMPLE                    0x809D
375 
376 /* Points */
377 #define GR_GL_POINT_SMOOTH                   0x0B10
378 #define GR_GL_POINT_SIZE                     0x0B11
379 #define GR_GL_POINT_SIZE_GRANULARITY         0x0B13
380 #define GR_GL_POINT_SIZE_RANGE               0x0B12
381 
382 /* Lines */
383 #define GR_GL_LINE_SMOOTH                    0x0B20
384 #define GR_GL_LINE_STIPPLE                   0x0B24
385 #define GR_GL_LINE_STIPPLE_PATTERN           0x0B25
386 #define GR_GL_LINE_STIPPLE_REPEAT            0x0B26
387 #define GR_GL_LINE_WIDTH                     0x0B21
388 #define GR_GL_LINE_WIDTH_GRANULARITY         0x0B23
389 #define GR_GL_LINE_WIDTH_RANGE               0x0B22
390 
391 /* PixelFormat */
392 #define GR_GL_DEPTH_COMPONENT                0x1902
393 #define GR_GL_RED                            0x1903
394 #define GR_GL_GREEN                          0x1904
395 #define GR_GL_BLUE                           0x1905
396 #define GR_GL_ALPHA                          0x1906
397 #define GR_GL_RGB                            0x1907
398 #define GR_GL_RGBA                           0x1908
399 #define GR_GL_BGRA                           0x80E1
400 #define GR_GL_LUMINANCE                      0x1909
401 #define GR_GL_LUMINANCE_ALPHA                0x190A
402 #define GR_GL_PALETTE8_RGBA8                 0x8B96
403 #define GR_GL_ALPHA8                         0x803C
404 
405 #define GR_GL_R8                             0x8229
406 #define GR_GL_R16F                           0x822D
407 #define GR_GL_ALPHA16F                       0x881C
408 
409 /* PixelType */
410 /*      GL_UNSIGNED_BYTE */
411 #define GR_GL_UNSIGNED_SHORT_4_4_4_4         0x8033
412 #define GR_GL_UNSIGNED_SHORT_5_5_5_1         0x8034
413 #define GR_GL_UNSIGNED_SHORT_5_6_5           0x8363
414 
415 /* Shaders */
416 #define GR_GL_FRAGMENT_SHADER                  0x8B30
417 #define GR_GL_VERTEX_SHADER                    0x8B31
418 #define GR_GL_GEOMETRY_SHADER                  0x8DD9
419 #define GR_GL_MAX_VERTEX_ATTRIBS               0x8869
420 #define GR_GL_MAX_VERTEX_UNIFORM_VECTORS       0x8DFB
421 #define GR_GL_MAX_VARYING_VECTORS              0x8DFC
422 #define GR_GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS 0x8B4D
423 #define GR_GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS   0x8B4C
424 #define GR_GL_MAX_TEXTURE_IMAGE_UNITS          0x8872
425 #define GR_GL_MAX_FRAGMENT_UNIFORM_VECTORS     0x8DFD
426 #define GR_GL_SHADER_TYPE                      0x8B4F
427 #define GR_GL_DELETE_STATUS                    0x8B80
428 #define GR_GL_LINK_STATUS                      0x8B82
429 #define GR_GL_VALIDATE_STATUS                  0x8B83
430 #define GR_GL_ATTACHED_SHADERS                 0x8B85
431 #define GR_GL_ACTIVE_UNIFORMS                  0x8B86
432 #define GR_GL_ACTIVE_UNIFORM_MAX_LENGTH        0x8B87
433 #define GR_GL_ACTIVE_ATTRIBUTES                0x8B89
434 #define GR_GL_ACTIVE_ATTRIBUTE_MAX_LENGTH      0x8B8A
435 #define GR_GL_SHADING_LANGUAGE_VERSION         0x8B8C
436 #define GR_GL_CURRENT_PROGRAM                  0x8B8D
437 #define GR_GL_MAX_FRAGMENT_UNIFORM_COMPONENTS  0x8B49
438 #define GR_GL_MAX_VERTEX_UNIFORM_COMPONENTS    0x8B4A
439 
440 /* StencilFunction */
441 #define GR_GL_NEVER                          0x0200
442 #define GR_GL_LESS                           0x0201
443 #define GR_GL_EQUAL                          0x0202
444 #define GR_GL_LEQUAL                         0x0203
445 #define GR_GL_GREATER                        0x0204
446 #define GR_GL_NOTEQUAL                       0x0205
447 #define GR_GL_GEQUAL                         0x0206
448 #define GR_GL_ALWAYS                         0x0207
449 
450 /* StencilOp */
451 /*      GL_ZERO */
452 #define GR_GL_KEEP                           0x1E00
453 #define GR_GL_REPLACE                        0x1E01
454 #define GR_GL_INCR                           0x1E02
455 #define GR_GL_DECR                           0x1E03
456 #define GR_GL_INVERT                         0x150A
457 #define GR_GL_INCR_WRAP                      0x8507
458 #define GR_GL_DECR_WRAP                      0x8508
459 
460 /* StringName */
461 #define GR_GL_VENDOR                         0x1F00
462 #define GR_GL_RENDERER                       0x1F01
463 #define GR_GL_VERSION                        0x1F02
464 #define GR_GL_EXTENSIONS                     0x1F03
465 
466 /* StringCounts */
467 #define GR_GL_NUM_EXTENSIONS                 0x821D
468 
469 /* Pixel Mode / Transfer */
470 #define GR_GL_UNPACK_ROW_LENGTH              0x0CF2
471 #define GR_GL_PACK_ROW_LENGTH                0x0D02
472 
473 
474 /* TextureMagFilter */
475 #define GR_GL_NEAREST                        0x2600
476 #define GR_GL_LINEAR                         0x2601
477 
478 /* TextureMinFilter */
479 /*      GL_NEAREST */
480 /*      GL_LINEAR */
481 #define GR_GL_NEAREST_MIPMAP_NEAREST         0x2700
482 #define GR_GL_LINEAR_MIPMAP_NEAREST          0x2701
483 #define GR_GL_NEAREST_MIPMAP_LINEAR          0x2702
484 #define GR_GL_LINEAR_MIPMAP_LINEAR           0x2703
485 
486 /* TextureUsage */
487 #define GR_GL_FRAMEBUFFER_ATTACHMENT         0x93A3
488 
489 /* TextureParameterName */
490 #define GR_GL_TEXTURE_MAG_FILTER             0x2800
491 #define GR_GL_TEXTURE_MIN_FILTER             0x2801
492 #define GR_GL_TEXTURE_WRAP_S                 0x2802
493 #define GR_GL_TEXTURE_WRAP_T                 0x2803
494 #define GR_GL_TEXTURE_USAGE                  0x93A2
495 
496 /* TextureTarget */
497 /*      GL_TEXTURE_2D */
498 #define GR_GL_TEXTURE                        0x1702
499 #define GR_GL_TEXTURE_CUBE_MAP               0x8513
500 #define GR_GL_TEXTURE_BINDING_CUBE_MAP       0x8514
501 #define GR_GL_TEXTURE_CUBE_MAP_POSITIVE_X    0x8515
502 #define GR_GL_TEXTURE_CUBE_MAP_NEGATIVE_X    0x8516
503 #define GR_GL_TEXTURE_CUBE_MAP_POSITIVE_Y    0x8517
504 #define GR_GL_TEXTURE_CUBE_MAP_NEGATIVE_Y    0x8518
505 #define GR_GL_TEXTURE_CUBE_MAP_POSITIVE_Z    0x8519
506 #define GR_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z    0x851A
507 #define GR_GL_MAX_CUBE_MAP_TEXTURE_SIZE      0x851C
508 
509 /* TextureUnit */
510 #define GR_GL_TEXTURE0                       0x84C0
511 #define GR_GL_TEXTURE1                       0x84C1
512 #define GR_GL_TEXTURE2                       0x84C2
513 #define GR_GL_TEXTURE3                       0x84C3
514 #define GR_GL_TEXTURE4                       0x84C4
515 #define GR_GL_TEXTURE5                       0x84C5
516 #define GR_GL_TEXTURE6                       0x84C6
517 #define GR_GL_TEXTURE7                       0x84C7
518 #define GR_GL_TEXTURE8                       0x84C8
519 #define GR_GL_TEXTURE9                       0x84C9
520 #define GR_GL_TEXTURE10                      0x84CA
521 #define GR_GL_TEXTURE11                      0x84CB
522 #define GR_GL_TEXTURE12                      0x84CC
523 #define GR_GL_TEXTURE13                      0x84CD
524 #define GR_GL_TEXTURE14                      0x84CE
525 #define GR_GL_TEXTURE15                      0x84CF
526 #define GR_GL_TEXTURE16                      0x84D0
527 #define GR_GL_TEXTURE17                      0x84D1
528 #define GR_GL_TEXTURE18                      0x84D2
529 #define GR_GL_TEXTURE19                      0x84D3
530 #define GR_GL_TEXTURE20                      0x84D4
531 #define GR_GL_TEXTURE21                      0x84D5
532 #define GR_GL_TEXTURE22                      0x84D6
533 #define GR_GL_TEXTURE23                      0x84D7
534 #define GR_GL_TEXTURE24                      0x84D8
535 #define GR_GL_TEXTURE25                      0x84D9
536 #define GR_GL_TEXTURE26                      0x84DA
537 #define GR_GL_TEXTURE27                      0x84DB
538 #define GR_GL_TEXTURE28                      0x84DC
539 #define GR_GL_TEXTURE29                      0x84DD
540 #define GR_GL_TEXTURE30                      0x84DE
541 #define GR_GL_TEXTURE31                      0x84DF
542 #define GR_GL_ACTIVE_TEXTURE                 0x84E0
543 #define GR_GL_MAX_TEXTURE_UNITS              0x84E2
544 #define GR_GL_MAX_TEXTURE_COORDS             0x8871
545 
546 /* TextureWrapMode */
547 #define GR_GL_REPEAT                         0x2901
548 #define GR_GL_CLAMP_TO_EDGE                  0x812F
549 #define GR_GL_MIRRORED_REPEAT                0x8370
550 
551 /* Texture Swizzle */
552 #define GR_GL_TEXTURE_SWIZZLE_R              0x8E42
553 #define GR_GL_TEXTURE_SWIZZLE_G              0x8E43
554 #define GR_GL_TEXTURE_SWIZZLE_B              0x8E44
555 #define GR_GL_TEXTURE_SWIZZLE_A              0x8E45
556 #define GR_GL_TEXTURE_SWIZZLE_RGBA           0x8E46
557 
558 /* Texture mapping */
559 #define GR_GL_TEXTURE_ENV                    0x2300
560 #define GR_GL_TEXTURE_ENV_MODE               0x2200
561 #define GR_GL_TEXTURE_1D                     0x0DE0
562 /* GL_TEXTURE_2D */
563 /* GL_TEXTURE_WRAP_S */
564 /* GL_TEXTURE_WRAP_T */
565 /* GL_TEXTURE_MAG_FILTER */
566 /* GL_TEXTURE_MIN_FILTER */
567 #define GR_GL_TEXTURE_ENV_COLOR             0x2201
568 #define GR_GL_TEXTURE_GEN_S                 0x0C60
569 #define GR_GL_TEXTURE_GEN_T                 0x0C61
570 #define GR_GL_TEXTURE_GEN_R                 0x0C62
571 #define GR_GL_TEXTURE_GEN_Q                 0x0C63
572 #define GR_GL_TEXTURE_GEN_MODE              0x2500
573 #define GR_GL_TEXTURE_BORDER_COLOR          0x1004
574 #define GR_GL_TEXTURE_WIDTH                 0x1000
575 #define GR_GL_TEXTURE_HEIGHT                0x1001
576 #define GR_GL_TEXTURE_BORDER                0x1005
577 #define GR_GL_TEXTURE_COMPONENTS            0x1003
578 #define GR_GL_TEXTURE_RED_SIZE              0x805C
579 #define GR_GL_TEXTURE_GREEN_SIZE            0x805D
580 #define GR_GL_TEXTURE_BLUE_SIZE             0x805E
581 #define GR_GL_TEXTURE_ALPHA_SIZE            0x805F
582 #define GR_GL_TEXTURE_LUMINANCE_SIZE        0x8060
583 #define GR_GL_TEXTURE_INTENSITY_SIZE        0x8061
584 #define GR_GL_TEXTURE_INTERNAL_FORMAT       0x1003
585 /* GL_NEAREST_MIPMAP_NEAREST */
586 /* GL_NEAREST_MIPMAP_LINEAR */
587 /* GL_LINEAR_MIPMAP_NEAREST */
588 /* GL_LINEAR_MIPMAP_LINEAR */
589 #define GR_GL_OBJECT_LINEAR                 0x2401
590 #define GR_GL_OBJECT_PLANE                  0x2501
591 #define GR_GL_EYE_LINEAR                    0x2400
592 #define GR_GL_EYE_PLANE                     0x2502
593 #define GR_GL_SPHERE_MAP                    0x2402
594 #define GR_GL_DECAL                         0x2101
595 #define GR_GL_MODULATE                      0x2100
596 /* GL_NEAREST */
597 /* GL_REPEAT */
598 #define GR_GL_CLAMP                         0x2900
599 #define GR_GL_S                             0x2000
600 #define GR_GL_T                             0x2001
601 #define GR_GL_R                             0x2002
602 #define GR_GL_Q                             0x2003
603 #define GR_GL_TEXTURE_GEN_R                 0x0C62
604 #define GR_GL_TEXTURE_GEN_Q                 0x0C63
605 
606 /* texture_env_combine */
607 #define GR_GL_COMBINE                       0x8570
608 #define GR_GL_COMBINE_RGB                   0x8571
609 #define GR_GL_COMBINE_ALPHA                 0x8572
610 #define GR_GL_SOURCE0_RGB                   0x8580
611 #define GR_GL_SOURCE1_RGB                   0x8581
612 #define GR_GL_SOURCE2_RGB                   0x8582
613 #define GR_GL_SOURCE0_ALPHA                 0x8588
614 #define GR_GL_SOURCE1_ALPHA                 0x8589
615 #define GR_GL_SOURCE2_ALPHA                 0x858A
616 #define GR_GL_OPERAND0_RGB                  0x8590
617 #define GR_GL_OPERAND1_RGB                  0x8591
618 #define GR_GL_OPERAND2_RGB                  0x8592
619 #define GR_GL_OPERAND0_ALPHA                0x8598
620 #define GR_GL_OPERAND1_ALPHA                0x8599
621 #define GR_GL_OPERAND2_ALPHA                0x859A
622 #define GR_GL_RGB_SCALE                     0x8573
623 #define GR_GL_ADD_SIGNED                    0x8574
624 #define GR_GL_INTERPOLATE                   0x8575
625 #define GR_GL_SUBTRACT                      0x84E7
626 #define GR_GL_CONSTANT                      0x8576
627 #define GR_GL_PRIMARY_COLOR                 0x8577
628 #define GR_GL_PREVIOUS                      0x8578
629 #define GR_GL_SRC0_RGB                      0x8580
630 #define GR_GL_SRC1_RGB                      0x8581
631 #define GR_GL_SRC2_RGB                      0x8582
632 #define GR_GL_SRC0_ALPHA                    0x8588
633 #define GR_GL_SRC1_ALPHA                    0x8589
634 #define GR_GL_SRC2_ALPHA                    0x858A
635 
636 /* Uniform Types */
637 #define GR_GL_FLOAT_VEC2                     0x8B50
638 #define GR_GL_FLOAT_VEC3                     0x8B51
639 #define GR_GL_FLOAT_VEC4                     0x8B52
640 #define GR_GL_INT_VEC2                       0x8B53
641 #define GR_GL_INT_VEC3                       0x8B54
642 #define GR_GL_INT_VEC4                       0x8B55
643 #define GR_GL_BOOL                           0x8B56
644 #define GR_GL_BOOL_VEC2                      0x8B57
645 #define GR_GL_BOOL_VEC3                      0x8B58
646 #define GR_GL_BOOL_VEC4                      0x8B59
647 #define GR_GL_FLOAT_MAT2                     0x8B5A
648 #define GR_GL_FLOAT_MAT3                     0x8B5B
649 #define GR_GL_FLOAT_MAT4                     0x8B5C
650 #define GR_GL_SAMPLER_2D                     0x8B5E
651 #define GR_GL_SAMPLER_CUBE                   0x8B60
652 
653 /* Vertex Arrays */
654 #define GR_GL_VERTEX_ATTRIB_ARRAY_ENABLED        0x8622
655 #define GR_GL_VERTEX_ATTRIB_ARRAY_SIZE           0x8623
656 #define GR_GL_VERTEX_ATTRIB_ARRAY_STRIDE         0x8624
657 #define GR_GL_VERTEX_ATTRIB_ARRAY_TYPE           0x8625
658 #define GR_GL_VERTEX_ATTRIB_ARRAY_NORMALIZED     0x886A
659 #define GR_GL_VERTEX_ATTRIB_ARRAY_POINTER        0x8645
660 #define GR_GL_VERTEX_ATTRIB_ARRAY_BUFFER_BINDING 0x889F
661 #define GR_GL_VERTEX_ARRAY                       0x8074
662 #define GR_GL_NORMAL_ARRAY                       0x8075
663 #define GR_GL_COLOR_ARRAY                        0x8076
664 #define GR_GL_SECONDARY_COLOR_ARRAY              0x845E
665 #define GR_GL_INDEX_ARRAY                        0x8077
666 #define GR_GL_TEXTURE_COORD_ARRAY                0x8078
667 #define GR_GL_EDGE_FLAG_ARRAY                    0x8079
668 #define GR_GL_VERTEX_ARRAY_SIZE                  0x807A
669 #define GR_GL_VERTEX_ARRAY_TYPE                  0x807B
670 #define GR_GL_VERTEX_ARRAY_STRIDE                0x807C
671 #define GR_GL_NORMAL_ARRAY_TYPE                  0x807E
672 #define GR_GL_NORMAL_ARRAY_STRIDE                0x807F
673 #define GR_GL_COLOR_ARRAY_SIZE                   0x8081
674 #define GR_GL_COLOR_ARRAY_TYPE                   0x8082
675 #define GR_GL_COLOR_ARRAY_STRIDE                 0x8083
676 #define GR_GL_INDEX_ARRAY_TYPE                   0x8085
677 #define GR_GL_INDEX_ARRAY_STRIDE                 0x8086
678 #define GR_GL_TEXTURE_COORD_ARRAY_SIZE           0x8088
679 #define GR_GL_TEXTURE_COORD_ARRAY_TYPE           0x8089
680 #define GR_GL_TEXTURE_COORD_ARRAY_STRIDE         0x808A
681 #define GR_GL_EDGE_FLAG_ARRAY_STRIDE             0x808C
682 #define GR_GL_VERTEX_ARRAY_POINTER               0x808E
683 #define GR_GL_NORMAL_ARRAY_POINTER               0x808F
684 #define GR_GL_COLOR_ARRAY_POINTER                0x8090
685 #define GR_GL_INDEX_ARRAY_POINTER                0x8091
686 #define GR_GL_TEXTURE_COORD_ARRAY_POINTER        0x8092
687 #define GR_GL_EDGE_FLAG_ARRAY_POINTER            0x8093
688 #define GR_GL_V2F                                0x2A20
689 #define GR_GL_V3F                                0x2A21
690 #define GR_GL_C4UB_V2F                           0x2A22
691 #define GR_GL_C4UB_V3F                           0x2A23
692 #define GR_GL_C3F_V3F                            0x2A24
693 #define GR_GL_N3F_V3F                            0x2A25
694 #define GR_GL_C4F_N3F_V3F                        0x2A26
695 #define GR_GL_T2F_V3F                            0x2A27
696 #define GR_GL_T4F_V4F                            0x2A28
697 #define GR_GL_T2F_C4UB_V3F                       0x2A29
698 #define GR_GL_T2F_C3F_V3F                        0x2A2A
699 #define GR_GL_T2F_N3F_V3F                        0x2A2B
700 #define GR_GL_T2F_C4F_N3F_V3F                    0x2A2C
701 #define GR_GL_T4F_C4F_N3F_V4F                    0x2A2D
702 
703 /* Vertex Buffer Object */
704 #define GR_GL_WRITE_ONLY                         0x88B9
705 #define GR_GL_BUFFER_MAPPED                      0x88BC
706 
707 #define GR_GL_MAP_READ_BIT                       0x0001
708 #define GR_GL_MAP_WRITE_BIT                      0x0002
709 #define GR_GL_MAP_INVALIDATE_RANGE_BIT           0x0004
710 #define GR_GL_MAP_INVALIDATE_BUFFER_BIT          0x0008
711 #define GR_GL_MAP_FLUSH_EXPLICIT_BIT             0x0010
712 #define GR_GL_MAP_UNSYNCHRONIZED_BIT             0x0020
713 
714 /* Read Format */
715 #define GR_GL_IMPLEMENTATION_COLOR_READ_TYPE   0x8B9A
716 #define GR_GL_IMPLEMENTATION_COLOR_READ_FORMAT 0x8B9B
717 
718 /* Shader Source */
719 #define GR_GL_COMPILE_STATUS                 0x8B81
720 #define GR_GL_INFO_LOG_LENGTH                0x8B84
721 #define GR_GL_SHADER_SOURCE_LENGTH           0x8B88
722 #define GR_GL_SHADER_COMPILER                0x8DFA
723 
724 /* Shader Binary */
725 #define GR_GL_SHADER_BINARY_FORMATS          0x8DF8
726 #define GR_GL_NUM_SHADER_BINARY_FORMATS      0x8DF9
727 
728 /* Shader Precision-Specified Types */
729 #define GR_GL_LOW_FLOAT                      0x8DF0
730 #define GR_GL_MEDIUM_FLOAT                   0x8DF1
731 #define GR_GL_HIGH_FLOAT                     0x8DF2
732 #define GR_GL_LOW_INT                        0x8DF3
733 #define GR_GL_MEDIUM_INT                     0x8DF4
734 #define GR_GL_HIGH_INT                       0x8DF5
735 
736 /* Queries */
737 #define GR_GL_QUERY_COUNTER_BITS             0x8864
738 #define GR_GL_CURRENT_QUERY                  0x8865
739 #define GR_GL_QUERY_RESULT                   0x8866
740 #define GR_GL_QUERY_RESULT_AVAILABLE         0x8867
741 #define GR_GL_SAMPLES_PASSED                 0x8914
742 #define GR_GL_ANY_SAMPLES_PASSED             0x8C2F
743 #define GR_GL_TIME_ELAPSED                   0x88BF
744 #define GR_GL_TIMESTAMP                      0x8E28
745 #define GR_GL_PRIMITIVES_GENERATED           0x8C87
746 #define GR_GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN 0x8C88
747 
748 
749 /* Framebuffer Object. */
750 #define GR_GL_FRAMEBUFFER                    0x8D40
751 #define GR_GL_READ_FRAMEBUFFER               0x8CA8
752 #define GR_GL_DRAW_FRAMEBUFFER               0x8CA9
753 
754 #define GR_GL_RENDERBUFFER                   0x8D41
755 
756 #define GR_GL_RGBA4                          0x8056
757 #define GR_GL_RGB5_A1                        0x8057
758 #define GR_GL_RGB565                         0x8D62
759 #define GR_GL_RGBA8                          0x8058
760 #define GR_GL_RGBA32F                        0x8814
761 #define GR_GL_RGB5                           0x8050
762 #define GR_GL_RGB8                           0x8051
763 #define GR_GL_BGRA8                          0x93A1
764 #define GR_GL_SRGB                           0x8C40
765 #define GR_GL_SRGB8                          0x8C41
766 #define GR_GL_SRGB_ALPHA                     0x8C42
767 #define GR_GL_SRGB8_ALPHA8                   0x8C43
768 #define GR_GL_DEPTH_COMPONENT16              0x81A5
769 #define GR_GL_STENCIL_INDEX                  0x1901
770 #define GR_GL_STENCIL_INDEX4                 0x8D47
771 #define GR_GL_STENCIL_INDEX8                 0x8D48
772 #define GR_GL_STENCIL_INDEX16                0x8D49
773 #define GR_GL_DEPTH_STENCIL                  0x84F9
774 #define GR_GL_DEPTH24_STENCIL8               0x88F0
775 
776 #define GR_GL_MAX_SAMPLES                    0x8D57
777 // GL_IMG_multisampled_render_to_texture uses a different value for GL_MAX_SAMPLES
778 #define GR_GL_MAX_SAMPLES_IMG                0x9135
779 
780 #define GR_GL_RENDERBUFFER_WIDTH             0x8D42
781 #define GR_GL_RENDERBUFFER_HEIGHT            0x8D43
782 #define GR_GL_RENDERBUFFER_INTERNAL_FORMAT   0x8D44
783 #define GR_GL_RENDERBUFFER_RED_SIZE          0x8D50
784 #define GR_GL_RENDERBUFFER_GREEN_SIZE        0x8D51
785 #define GR_GL_RENDERBUFFER_BLUE_SIZE         0x8D52
786 #define GR_GL_RENDERBUFFER_ALPHA_SIZE        0x8D53
787 #define GR_GL_RENDERBUFFER_DEPTH_SIZE        0x8D54
788 #define GR_GL_RENDERBUFFER_STENCIL_SIZE      0x8D55
789 
790 #define GR_GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE           0x8CD0
791 #define GR_GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME           0x8CD1
792 #define GR_GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL         0x8CD2
793 #define GR_GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE 0x8CD3
794 #define GR_GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LAYER         0x8CD4
795 #define GR_GL_FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING        0x8210
796 #define GR_GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE        0x8211
797 #define GR_GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE              0x8212
798 #define GR_GL_FRAMEBUFFER_ATTACHMENT_GREEN_SIZE            0x8213
799 #define GR_GL_FRAMEBUFFER_ATTACHMENT_BLUE_SIZE             0x8214
800 #define GR_GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE            0x8215
801 #define GR_GL_FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE            0x8216
802 #define GR_GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE          0x8217
803 
804 #define GR_GL_COLOR_ATTACHMENT0              0x8CE0
805 #define GR_GL_DEPTH_ATTACHMENT               0x8D00
806 #define GR_GL_STENCIL_ATTACHMENT             0x8D20
807 
808 // GL_EXT_discard_framebuffer
809 #define GR_GL_COLOR                          0x1800
810 #define GR_GL_DEPTH                          0x1801
811 #define GR_GL_STENCIL                        0x1802
812 
813 #define GR_GL_NONE                           0
814 
815 #define GR_GL_FRAMEBUFFER_COMPLETE                      0x8CD5
816 #define GR_GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT         0x8CD6
817 #define GR_GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT 0x8CD7
818 #define GR_GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS         0x8CD9
819 #define GR_GL_FRAMEBUFFER_UNSUPPORTED                   0x8CDD
820 
821 #define GR_GL_FRAMEBUFFER_BINDING            0x8CA6
822 #define GR_GL_RENDERBUFFER_BINDING           0x8CA7
823 #define GR_GL_MAX_RENDERBUFFER_SIZE          0x84E8
824 
825 #define GR_GL_INVALID_FRAMEBUFFER_OPERATION  0x0506
826 
827 /* Path Rendering */
828 // commands
829 #define GR_GL_CLOSE_PATH                                    0x00
830 #define GR_GL_MOVE_TO                                       0x02
831 #define GR_GL_LINE_TO                                       0x04
832 #define GR_GL_QUADRATIC_CURVE_TO                            0x0A
833 #define GR_GL_CUBIC_CURVE_TO                                0x0C
834 #define GR_GL_CONIC_CURVE_TO                                0x1A
835 
836 // path parameters
837 #define GR_GL_PATH_STROKE_WIDTH                             0x9075
838 #define GR_GL_PATH_END_CAPS                                 0x9076
839 #define GR_GL_PATH_JOIN_STYLE                               0x9079
840 #define GR_GL_PATH_MITER_LIMIT                              0x907A
841 
842 // fill modes
843 #define GR_GL_COUNT_UP                                      0x9088
844 
845 // cover mode
846 #define GR_GL_BOUNDING_BOX                                  0x908D
847 #define GR_GL_BOUNDING_BOX_OF_BOUNDING_BOXES                0x909C
848 
849 // transform type
850 #define GR_GL_TRANSLATE_X                                   0x908E
851 #define GR_GL_TRANSLATE_Y                                   0x908F
852 #define GR_GL_TRANSLATE_2D                                  0x9090
853 #define GR_GL_TRANSPOSE_AFFINE_2D                           0x9096
854 
855 // cap/dash values
856 #define GR_GL_SQUARE                                        0x90A3
857 #define GR_GL_ROUND                                         0x90A4
858 
859 // join values
860 #define GR_GL_BEVEL                                         0x90A6
861 #define GR_GL_MITER_REVERT                                  0x90A7
862 
863 // glyph loading values
864 #define GR_GL_STANDARD_FONT_FORMAT                          0x936C
865 #define GR_GL_FONT_GLYPHS_AVAILABLE                         0x9368
866 
867 // NV_path_rendering extension to ARB_program_interface_query:
868 // .. corresponds to the set of active input variables used by the fragment
869 // shader stage of <program> (if a fragment stage exists).
870 #define GR_GL_FRAGMENT_INPUT                                0x936D
871 
872 // NV_path_rendering extension to EXT_direct_state_access:
873 // [the matrix functions] must support the PATH_PROJECTION_NV and
874 // PATH_MODELVIEW_NV tokens for matrixMode.
875 #define GR_GL_PATH_PROJECTION                               0x1701
876 #define GR_GL_PATH_MODELVIEW                                0x1700
877 
878 /*  ARM specific define for MSAA support on framebuffer fetch */
879 #define GR_GL_FETCH_PER_SAMPLE_ARM                          0x8F65
880 
881 #endif
882