2 * Mesa 3-D graphics library
5 * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
6 * Copyright (C) 2009 VMware, Inc. All Rights Reserved.
8 * Permission is hereby granted, free of charge, to any person obtaining a
9 * copy of this software and associated documentation files (the "Software"),
10 * to deal in the Software without restriction, including without limitation
11 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
12 * and/or sell copies of the Software, and to permit persons to whom the
13 * Software is furnished to do so, subject to the following conditions:
15 * The above copyright notice and this permission notice shall be included
16 * in all copies or substantial portions of the Software.
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
21 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
22 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
23 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
28 * Main Mesa data structures.
30 * Please try to mark derived values with a leading underscore ('_').
37 #include "main/glheader.h"
38 #include "main/config.h"
39 #include "main/mfeatures.h"
40 #include "glapi/glapi.h"
41 #include "math/m_matrix.h" /* GLmatrix */
42 #include "main/simple_list.h" /* struct simple_node */
43 #include "main/formats.h" /* MESA_FORMAT_COUNT */
52 * \name 64-bit extension of GLbitfield.
55 typedef GLuint64 GLbitfield64
;
57 /** Set a single bit */
58 #define BITFIELD64_BIT(b) ((GLbitfield64)1 << (b))
59 /** Set all bits up to excluding bit b */
60 #define BITFIELD64_MASK(b) \
61 ((b) == 64 ? (~(GLbitfield64)0) : BITFIELD64_BIT(b) - 1)
62 /** Set count bits starting from bit b */
63 #define BITFIELD64_RANGE(b, count) \
64 (BITFIELD64_MASK((b) + (count)) & ~BITFIELD64_MASK(b))
68 * \name Some forward type declarations
71 struct _mesa_HashTable
;
72 struct gl_attrib_node
;
73 struct gl_list_extensions
;
75 struct gl_program_cache
;
76 struct gl_texture_object
;
79 struct gl_uniform_storage
;
80 struct prog_instruction
;
81 struct gl_program_parameter_list
;
87 /** Extra draw modes beyond GL_POINTS, GL_TRIANGLE_FAN, etc */
88 #define PRIM_OUTSIDE_BEGIN_END (GL_POLYGON+1)
89 #define PRIM_INSIDE_UNKNOWN_PRIM (GL_POLYGON+2)
90 #define PRIM_UNKNOWN (GL_POLYGON+3)
95 * Indexes for vertex program attributes.
96 * GL_NV_vertex_program aliases generic attributes over the conventional
97 * attributes. In GL_ARB_vertex_program shader the aliasing is optional.
98 * In GL_ARB_vertex_shader / OpenGL 2.0 the aliasing is disallowed (the
99 * generic attributes are distinct/separate).
104 VERT_ATTRIB_WEIGHT
= 1,
105 VERT_ATTRIB_NORMAL
= 2,
106 VERT_ATTRIB_COLOR0
= 3,
107 VERT_ATTRIB_COLOR1
= 4,
109 VERT_ATTRIB_COLOR_INDEX
= 6,
110 VERT_ATTRIB_EDGEFLAG
= 7,
111 VERT_ATTRIB_TEX0
= 8,
112 VERT_ATTRIB_TEX1
= 9,
113 VERT_ATTRIB_TEX2
= 10,
114 VERT_ATTRIB_TEX3
= 11,
115 VERT_ATTRIB_TEX4
= 12,
116 VERT_ATTRIB_TEX5
= 13,
117 VERT_ATTRIB_TEX6
= 14,
118 VERT_ATTRIB_TEX7
= 15,
119 VERT_ATTRIB_POINT_SIZE
= 16,
120 VERT_ATTRIB_GENERIC0
= 17,
121 VERT_ATTRIB_GENERIC1
= 18,
122 VERT_ATTRIB_GENERIC2
= 19,
123 VERT_ATTRIB_GENERIC3
= 20,
124 VERT_ATTRIB_GENERIC4
= 21,
125 VERT_ATTRIB_GENERIC5
= 22,
126 VERT_ATTRIB_GENERIC6
= 23,
127 VERT_ATTRIB_GENERIC7
= 24,
128 VERT_ATTRIB_GENERIC8
= 25,
129 VERT_ATTRIB_GENERIC9
= 26,
130 VERT_ATTRIB_GENERIC10
= 27,
131 VERT_ATTRIB_GENERIC11
= 28,
132 VERT_ATTRIB_GENERIC12
= 29,
133 VERT_ATTRIB_GENERIC13
= 30,
134 VERT_ATTRIB_GENERIC14
= 31,
135 VERT_ATTRIB_GENERIC15
= 32,
140 * Symbolic constats to help iterating over
141 * specific blocks of vertex attributes.
144 * includes all fixed function attributes as well as
145 * the aliased GL_NV_vertex_program shader attributes.
147 * include the classic texture coordinate attributes.
148 * Is a subset of VERT_ATTRIB_FF.
149 * VERT_ATTRIB_GENERIC_NV
150 * include the NV shader attributes.
151 * Is a subset of VERT_ATTRIB_FF.
152 * VERT_ATTRIB_GENERIC
153 * include the OpenGL 2.0+ GLSL generic shader attributes.
154 * These alias the generic GL_ARB_vertex_shader attributes.
156 #define VERT_ATTRIB_FF(i) (VERT_ATTRIB_POS + (i))
157 #define VERT_ATTRIB_FF_MAX VERT_ATTRIB_GENERIC0
159 #define VERT_ATTRIB_TEX(i) (VERT_ATTRIB_TEX0 + (i))
160 #define VERT_ATTRIB_TEX_MAX MAX_TEXTURE_COORD_UNITS
162 #define VERT_ATTRIB_GENERIC_NV(i) (VERT_ATTRIB_POS + (i))
163 #define VERT_ATTRIB_GENERIC_NV_MAX MAX_VERTEX_GENERIC_ATTRIBS
165 #define VERT_ATTRIB_GENERIC(i) (VERT_ATTRIB_GENERIC0 + (i))
166 #define VERT_ATTRIB_GENERIC_MAX MAX_VERTEX_GENERIC_ATTRIBS
169 * Bitflags for vertex attributes.
170 * These are used in bitfields in many places.
173 #define VERT_BIT_POS BITFIELD64_BIT(VERT_ATTRIB_POS)
174 #define VERT_BIT_WEIGHT BITFIELD64_BIT(VERT_ATTRIB_WEIGHT)
175 #define VERT_BIT_NORMAL BITFIELD64_BIT(VERT_ATTRIB_NORMAL)
176 #define VERT_BIT_COLOR0 BITFIELD64_BIT(VERT_ATTRIB_COLOR0)
177 #define VERT_BIT_COLOR1 BITFIELD64_BIT(VERT_ATTRIB_COLOR1)
178 #define VERT_BIT_FOG BITFIELD64_BIT(VERT_ATTRIB_FOG)
179 #define VERT_BIT_COLOR_INDEX BITFIELD64_BIT(VERT_ATTRIB_COLOR_INDEX)
180 #define VERT_BIT_EDGEFLAG BITFIELD64_BIT(VERT_ATTRIB_EDGEFLAG)
181 #define VERT_BIT_TEX0 BITFIELD64_BIT(VERT_ATTRIB_TEX0)
182 #define VERT_BIT_TEX1 BITFIELD64_BIT(VERT_ATTRIB_TEX1)
183 #define VERT_BIT_TEX2 BITFIELD64_BIT(VERT_ATTRIB_TEX2)
184 #define VERT_BIT_TEX3 BITFIELD64_BIT(VERT_ATTRIB_TEX3)
185 #define VERT_BIT_TEX4 BITFIELD64_BIT(VERT_ATTRIB_TEX4)
186 #define VERT_BIT_TEX5 BITFIELD64_BIT(VERT_ATTRIB_TEX5)
187 #define VERT_BIT_TEX6 BITFIELD64_BIT(VERT_ATTRIB_TEX6)
188 #define VERT_BIT_TEX7 BITFIELD64_BIT(VERT_ATTRIB_TEX7)
189 #define VERT_BIT_POINT_SIZE BITFIELD64_BIT(VERT_ATTRIB_POINT_SIZE)
190 #define VERT_BIT_GENERIC0 BITFIELD64_BIT(VERT_ATTRIB_GENERIC0)
192 #define VERT_BIT(i) BITFIELD64_BIT(i)
193 #define VERT_BIT_ALL BITFIELD64_RANGE(0, VERT_ATTRIB_MAX)
195 #define VERT_BIT_FF(i) VERT_BIT(i)
196 #define VERT_BIT_FF_ALL BITFIELD64_RANGE(0, VERT_ATTRIB_FF_MAX)
197 #define VERT_BIT_TEX(i) VERT_BIT(VERT_ATTRIB_TEX(i))
198 #define VERT_BIT_TEX_ALL \
199 BITFIELD64_RANGE(VERT_ATTRIB_TEX(0), VERT_ATTRIB_TEX_MAX)
201 #define VERT_BIT_GENERIC_NV(i) VERT_BIT(VERT_ATTRIB_GENERIC_NV(i))
202 #define VERT_BIT_GENERIC_NV_ALL \
203 BITFIELD64_RANGE(VERT_ATTRIB_GENERIC_NV(0), VERT_ATTRIB_GENERIC_NV_MAX)
205 #define VERT_BIT_GENERIC(i) VERT_BIT(VERT_ATTRIB_GENERIC(i))
206 #define VERT_BIT_GENERIC_ALL \
207 BITFIELD64_RANGE(VERT_ATTRIB_GENERIC(0), VERT_ATTRIB_GENERIC_MAX)
212 * Indexes for vertex shader outputs, geometry shader inputs/outputs, and
213 * fragment shader inputs.
215 * Note that some of these values are not available to all pipeline stages.
217 * When this enum is updated, the following code must be updated too:
218 * - vertResults (in prog_print.c's arb_output_attrib_string())
219 * - _mesa_vert_result_to_frag_attrib()
220 * - _mesa_frag_attrib_to_vert_result()
225 VARYING_SLOT_COL0
, /* COL0 and COL1 must be contiguous */
228 VARYING_SLOT_TEX0
, /* TEX0-TEX7 must be contiguous */
236 VARYING_SLOT_PSIZ
, /* Does not appear in FS */
237 VARYING_SLOT_BFC0
, /* Does not appear in FS */
238 VARYING_SLOT_BFC1
, /* Does not appear in FS */
239 VARYING_SLOT_EDGE
, /* Does not appear in FS */
240 VARYING_SLOT_CLIP_VERTEX
, /* Does not appear in FS */
241 VARYING_SLOT_CLIP_DIST0
,
242 VARYING_SLOT_CLIP_DIST1
,
243 VARYING_SLOT_PRIMITIVE_ID
, /* Does not appear in VS */
244 VARYING_SLOT_LAYER
, /* Appears only as GS output */
245 VARYING_SLOT_FACE
, /* FS only */
246 VARYING_SLOT_PNTC
, /* FS only */
247 VARYING_SLOT_VAR0
, /* First generic varying slot */
248 VARYING_SLOT_MAX
= VARYING_SLOT_VAR0
+ MAX_VARYING
253 * Bitflags for varying slots.
256 #define VARYING_BIT_POS BITFIELD64_BIT(VARYING_SLOT_POS)
257 #define VARYING_BIT_COL0 BITFIELD64_BIT(VARYING_SLOT_COL0)
258 #define VARYING_BIT_COL1 BITFIELD64_BIT(VARYING_SLOT_COL1)
259 #define VARYING_BIT_FOGC BITFIELD64_BIT(VARYING_SLOT_FOGC)
260 #define VARYING_BIT_TEX0 BITFIELD64_BIT(VARYING_SLOT_TEX0)
261 #define VARYING_BIT_TEX1 BITFIELD64_BIT(VARYING_SLOT_TEX1)
262 #define VARYING_BIT_TEX2 BITFIELD64_BIT(VARYING_SLOT_TEX2)
263 #define VARYING_BIT_TEX3 BITFIELD64_BIT(VARYING_SLOT_TEX3)
264 #define VARYING_BIT_TEX4 BITFIELD64_BIT(VARYING_SLOT_TEX4)
265 #define VARYING_BIT_TEX5 BITFIELD64_BIT(VARYING_SLOT_TEX5)
266 #define VARYING_BIT_TEX6 BITFIELD64_BIT(VARYING_SLOT_TEX6)
267 #define VARYING_BIT_TEX7 BITFIELD64_BIT(VARYING_SLOT_TEX7)
268 #define VARYING_BIT_TEX(U) BITFIELD64_BIT(VARYING_SLOT_TEX0 + (U))
269 #define VARYING_BITS_TEX_ANY BITFIELD64_RANGE(VARYING_SLOT_TEX0, \
270 MAX_TEXTURE_COORD_UNITS)
271 #define VARYING_BIT_PSIZ BITFIELD64_BIT(VARYING_SLOT_PSIZ)
272 #define VARYING_BIT_BFC0 BITFIELD64_BIT(VARYING_SLOT_BFC0)
273 #define VARYING_BIT_BFC1 BITFIELD64_BIT(VARYING_SLOT_BFC1)
274 #define VARYING_BIT_EDGE BITFIELD64_BIT(VARYING_SLOT_EDGE)
275 #define VARYING_BIT_CLIP_VERTEX BITFIELD64_BIT(VARYING_SLOT_CLIP_VERTEX)
276 #define VARYING_BIT_CLIP_DIST0 BITFIELD64_BIT(VARYING_SLOT_CLIP_DIST0)
277 #define VARYING_BIT_CLIP_DIST1 BITFIELD64_BIT(VARYING_SLOT_CLIP_DIST1)
278 #define VARYING_BIT_PRIMITIVE_ID BITFIELD64_BIT(VARYING_SLOT_PRIMITIVE_ID)
279 #define VARYING_BIT_LAYER BITFIELD64_BIT(VARYING_SLOT_LAYER)
280 #define VARYING_BIT_FACE BITFIELD64_BIT(VARYING_SLOT_FACE)
281 #define VARYING_BIT_PNTC BITFIELD64_BIT(VARYING_SLOT_PNTC)
282 #define VARYING_BIT_VAR(V) BITFIELD64_BIT(VARYING_SLOT_VAR0 + (V))
286 /*********************************************/
289 * Indexes for geometry program attributes.
293 GEOM_ATTRIB_POSITION
= VARYING_SLOT_POS
,
294 GEOM_ATTRIB_COLOR0
= VARYING_SLOT_COL0
,
295 GEOM_ATTRIB_COLOR1
= VARYING_SLOT_COL1
,
296 GEOM_ATTRIB_SECONDARY_COLOR0
= VARYING_SLOT_BFC0
,
297 GEOM_ATTRIB_SECONDARY_COLOR1
= VARYING_SLOT_BFC1
,
298 GEOM_ATTRIB_FOG_FRAG_COORD
= VARYING_SLOT_FOGC
,
299 GEOM_ATTRIB_POINT_SIZE
= VARYING_SLOT_PNTC
,
300 GEOM_ATTRIB_CLIP_VERTEX
= VARYING_SLOT_CLIP_VERTEX
,
301 GEOM_ATTRIB_PRIMITIVE_ID
= VARYING_SLOT_PRIMITIVE_ID
,
302 GEOM_ATTRIB_TEX_COORD
= VARYING_SLOT_TEX0
,
304 GEOM_ATTRIB_VAR0
= VARYING_SLOT_VAR0
,
305 GEOM_ATTRIB_MAX
= VARYING_SLOT_MAX
309 * Bitflags for geometry attributes.
310 * These are used in bitfields in many places.
313 #define GEOM_BIT_COLOR0 (1 << GEOM_ATTRIB_COLOR0)
314 #define GEOM_BIT_COLOR1 (1 << GEOM_ATTRIB_COLOR1)
315 #define GEOM_BIT_SCOLOR0 (1 << GEOM_ATTRIB_SECONDARY_COLOR0)
316 #define GEOM_BIT_SCOLOR1 (1 << GEOM_ATTRIB_SECONDARY_COLOR1)
317 #define GEOM_BIT_TEX_COORD (1 << GEOM_ATTRIB_TEX_COORD)
318 #define GEOM_BIT_FOG_COORD (1 << GEOM_ATTRIB_FOG_FRAG_COORD)
319 #define GEOM_BIT_POSITION (1 << GEOM_ATTRIB_POSITION)
320 #define GEOM_BIT_POINT_SIDE (1 << GEOM_ATTRIB_POINT_SIZE)
321 #define GEOM_BIT_CLIP_VERTEX (1 << GEOM_ATTRIB_CLIP_VERTEX)
322 #define GEOM_BIT_PRIM_ID (1 << GEOM_ATTRIB_PRIMITIVE_ID)
323 #define GEOM_BIT_VAR0 (1 << GEOM_ATTRIB_VAR0)
325 #define GEOM_BIT_VAR(g) (1 << (GEOM_BIT_VAR0 + (g)))
330 * Indexes for geometry program result attributes
335 GEOM_RESULT_COL0
= 1,
336 GEOM_RESULT_COL1
= 2,
337 GEOM_RESULT_SCOL0
= 3,
338 GEOM_RESULT_SCOL1
= 4,
339 GEOM_RESULT_FOGC
= 5,
340 GEOM_RESULT_TEX0
= 6,
341 GEOM_RESULT_TEX1
= 7,
342 GEOM_RESULT_TEX2
= 8,
343 GEOM_RESULT_TEX3
= 9,
344 GEOM_RESULT_TEX4
= 10,
345 GEOM_RESULT_TEX5
= 11,
346 GEOM_RESULT_TEX6
= 12,
347 GEOM_RESULT_TEX7
= 13,
348 GEOM_RESULT_PSIZ
= 14,
349 GEOM_RESULT_CLPV
= 15,
350 GEOM_RESULT_PRID
= 16,
351 GEOM_RESULT_LAYR
= 17,
352 GEOM_RESULT_VAR0
= 18, /**< shader varying, should really be 16 */
353 /* ### we need to -2 because var0 is 18 instead 16 like in the others */
354 GEOM_RESULT_MAX
= (GEOM_RESULT_VAR0
+ MAX_VARYING
- 2)
359 * Indexes for fragment program input attributes. Note that
360 * _mesa_vert_result_to_frag_attrib() and frag_attrib_to_vert_result() make
361 * assumptions about the layout of this enum.
365 FRAG_ATTRIB_WPOS
= 0,
366 FRAG_ATTRIB_COL0
= 1,
367 FRAG_ATTRIB_COL1
= 2,
368 FRAG_ATTRIB_FOGC
= 3,
369 FRAG_ATTRIB_TEX0
= 4,
370 FRAG_ATTRIB_TEX1
= 5,
371 FRAG_ATTRIB_TEX2
= 6,
372 FRAG_ATTRIB_TEX3
= 7,
373 FRAG_ATTRIB_TEX4
= 8,
374 FRAG_ATTRIB_TEX5
= 9,
375 FRAG_ATTRIB_TEX6
= 10,
376 FRAG_ATTRIB_TEX7
= 11,
377 FRAG_ATTRIB_FACE
= 12, /**< front/back face */
378 FRAG_ATTRIB_PNTC
= 13, /**< sprite/point coord */
379 FRAG_ATTRIB_CLIP_DIST0
= 14,
380 FRAG_ATTRIB_CLIP_DIST1
= 15,
381 FRAG_ATTRIB_VAR0
= 16, /**< shader varying */
382 FRAG_ATTRIB_MAX
= (FRAG_ATTRIB_VAR0
+ MAX_VARYING
)
387 * Convert from a gl_varying_slot value for a vertex output to the
388 * corresponding gl_frag_attrib.
390 * Varying output values which have no corresponding gl_frag_attrib
391 * (VARYING_SLOT_PSIZ, VARYING_SLOT_BFC0, VARYING_SLOT_BFC1, and
392 * VARYING_SLOT_EDGE) are converted to a value of -1.
395 _mesa_vert_result_to_frag_attrib(gl_varying_slot vert_result
)
397 if (vert_result
<= VARYING_SLOT_TEX7
)
399 else if (vert_result
< VARYING_SLOT_CLIP_DIST0
)
401 else if (vert_result
<= VARYING_SLOT_CLIP_DIST1
)
402 return vert_result
- VARYING_SLOT_CLIP_DIST0
+ FRAG_ATTRIB_CLIP_DIST0
;
403 else if (vert_result
< VARYING_SLOT_VAR0
)
406 return vert_result
- VARYING_SLOT_VAR0
+ FRAG_ATTRIB_VAR0
;
411 * Convert from a gl_frag_attrib value to the corresponding gl_varying_slot
412 * for a vertex output.
414 * gl_frag_attrib values which have no corresponding vertex output
415 * (FRAG_ATTRIB_FACE and FRAG_ATTRIB_PNTC) are converted to a value of -1.
418 _mesa_frag_attrib_to_vert_result(gl_frag_attrib frag_attrib
)
420 if (frag_attrib
<= FRAG_ATTRIB_TEX7
)
422 else if (frag_attrib
< FRAG_ATTRIB_CLIP_DIST0
)
424 else if (frag_attrib
<= FRAG_ATTRIB_CLIP_DIST1
)
425 return frag_attrib
- FRAG_ATTRIB_CLIP_DIST0
+ VARYING_SLOT_CLIP_DIST0
;
426 else /* frag_attrib >= FRAG_ATTRIB_VAR0 */
427 return frag_attrib
- FRAG_ATTRIB_VAR0
+ VARYING_SLOT_VAR0
;
432 * Bitflags for fragment program input attributes.
435 #define FRAG_BIT_WPOS (1 << FRAG_ATTRIB_WPOS)
436 #define FRAG_BIT_COL0 (1 << FRAG_ATTRIB_COL0)
437 #define FRAG_BIT_COL1 (1 << FRAG_ATTRIB_COL1)
438 #define FRAG_BIT_FOGC (1 << FRAG_ATTRIB_FOGC)
439 #define FRAG_BIT_FACE (1 << FRAG_ATTRIB_FACE)
440 #define FRAG_BIT_PNTC (1 << FRAG_ATTRIB_PNTC)
441 #define FRAG_BIT_TEX0 (1 << FRAG_ATTRIB_TEX0)
442 #define FRAG_BIT_TEX1 (1 << FRAG_ATTRIB_TEX1)
443 #define FRAG_BIT_TEX2 (1 << FRAG_ATTRIB_TEX2)
444 #define FRAG_BIT_TEX3 (1 << FRAG_ATTRIB_TEX3)
445 #define FRAG_BIT_TEX4 (1 << FRAG_ATTRIB_TEX4)
446 #define FRAG_BIT_TEX5 (1 << FRAG_ATTRIB_TEX5)
447 #define FRAG_BIT_TEX6 (1 << FRAG_ATTRIB_TEX6)
448 #define FRAG_BIT_TEX7 (1 << FRAG_ATTRIB_TEX7)
449 #define FRAG_BIT_VAR0 (1 << FRAG_ATTRIB_VAR0)
451 #define FRAG_BIT_TEX(U) (FRAG_BIT_TEX0 << (U))
452 #define FRAG_BIT_VAR(V) (FRAG_BIT_VAR0 << (V))
454 #define FRAG_BITS_TEX_ANY (FRAG_BIT_TEX0| \
466 * Fragment program results
470 FRAG_RESULT_DEPTH
= 0,
471 FRAG_RESULT_STENCIL
= 1,
472 /* If a single color should be written to all render targets, this
473 * register is written. No FRAG_RESULT_DATAn will be written.
475 FRAG_RESULT_COLOR
= 2,
477 /* FRAG_RESULT_DATAn are the per-render-target (GLSL gl_FragData[n]
478 * or ARB_fragment_program fragment.color[n]) color results. If
479 * any are written, FRAG_RESULT_COLOR will not be written.
481 FRAG_RESULT_DATA0
= 3,
482 FRAG_RESULT_MAX
= (FRAG_RESULT_DATA0
+ MAX_DRAW_BUFFERS
)
487 * Indexes for all renderbuffers
491 /* the four standard color buffers */
499 /* optional aux buffer */
501 /* generic renderbuffers */
514 * Bit flags for all renderbuffers
516 #define BUFFER_BIT_FRONT_LEFT (1 << BUFFER_FRONT_LEFT)
517 #define BUFFER_BIT_BACK_LEFT (1 << BUFFER_BACK_LEFT)
518 #define BUFFER_BIT_FRONT_RIGHT (1 << BUFFER_FRONT_RIGHT)
519 #define BUFFER_BIT_BACK_RIGHT (1 << BUFFER_BACK_RIGHT)
520 #define BUFFER_BIT_AUX0 (1 << BUFFER_AUX0)
521 #define BUFFER_BIT_AUX1 (1 << BUFFER_AUX1)
522 #define BUFFER_BIT_AUX2 (1 << BUFFER_AUX2)
523 #define BUFFER_BIT_AUX3 (1 << BUFFER_AUX3)
524 #define BUFFER_BIT_DEPTH (1 << BUFFER_DEPTH)
525 #define BUFFER_BIT_STENCIL (1 << BUFFER_STENCIL)
526 #define BUFFER_BIT_ACCUM (1 << BUFFER_ACCUM)
527 #define BUFFER_BIT_COLOR0 (1 << BUFFER_COLOR0)
528 #define BUFFER_BIT_COLOR1 (1 << BUFFER_COLOR1)
529 #define BUFFER_BIT_COLOR2 (1 << BUFFER_COLOR2)
530 #define BUFFER_BIT_COLOR3 (1 << BUFFER_COLOR3)
531 #define BUFFER_BIT_COLOR4 (1 << BUFFER_COLOR4)
532 #define BUFFER_BIT_COLOR5 (1 << BUFFER_COLOR5)
533 #define BUFFER_BIT_COLOR6 (1 << BUFFER_COLOR6)
534 #define BUFFER_BIT_COLOR7 (1 << BUFFER_COLOR7)
537 * Mask of all the color buffer bits (but not accum).
539 #define BUFFER_BITS_COLOR (BUFFER_BIT_FRONT_LEFT | \
540 BUFFER_BIT_BACK_LEFT | \
541 BUFFER_BIT_FRONT_RIGHT | \
542 BUFFER_BIT_BACK_RIGHT | \
544 BUFFER_BIT_COLOR0 | \
545 BUFFER_BIT_COLOR1 | \
546 BUFFER_BIT_COLOR2 | \
547 BUFFER_BIT_COLOR3 | \
548 BUFFER_BIT_COLOR4 | \
549 BUFFER_BIT_COLOR5 | \
550 BUFFER_BIT_COLOR6 | \
555 * Framebuffer configuration (aka visual / pixelformat)
556 * Note: some of these fields should be boolean, but it appears that
557 * code in drivers/dri/common/util.c requires int-sized fields.
563 GLboolean colorIndexMode
; /* XXX is this used anywhere? */
564 GLuint doubleBufferMode
;
567 GLboolean haveAccumBuffer
;
568 GLboolean haveDepthBuffer
;
569 GLboolean haveStencilBuffer
;
571 GLint redBits
, greenBits
, blueBits
, alphaBits
; /* bits per comp */
572 GLuint redMask
, greenMask
, blueMask
, alphaMask
;
573 GLint rgbBits
; /* total bits for rgb */
574 GLint indexBits
; /* total bits for colorindex */
576 GLint accumRedBits
, accumGreenBits
, accumBlueBits
, accumAlphaBits
;
584 /* EXT_visual_rating / GLX 1.2 */
587 /* EXT_visual_info / GLX 1.2 */
588 GLint transparentPixel
;
589 /* colors are floats scaled to ints */
590 GLint transparentRed
, transparentGreen
, transparentBlue
, transparentAlpha
;
591 GLint transparentIndex
;
593 /* ARB_multisample / SGIS_multisample */
597 /* SGIX_pbuffer / GLX 1.3 */
598 GLint maxPbufferWidth
;
599 GLint maxPbufferHeight
;
600 GLint maxPbufferPixels
;
601 GLint optimalPbufferWidth
; /* Only for SGIX_pbuffer. */
602 GLint optimalPbufferHeight
; /* Only for SGIX_pbuffer. */
604 /* OML_swap_method */
607 /* EXT_texture_from_pixmap */
608 GLint bindToTextureRgb
;
609 GLint bindToTextureRgba
;
610 GLint bindToMipmapTexture
;
611 GLint bindToTextureTargets
;
614 /* EXT_framebuffer_sRGB */
620 * \name Bit flags used for updating material values.
623 #define MAT_ATTRIB_FRONT_AMBIENT 0
624 #define MAT_ATTRIB_BACK_AMBIENT 1
625 #define MAT_ATTRIB_FRONT_DIFFUSE 2
626 #define MAT_ATTRIB_BACK_DIFFUSE 3
627 #define MAT_ATTRIB_FRONT_SPECULAR 4
628 #define MAT_ATTRIB_BACK_SPECULAR 5
629 #define MAT_ATTRIB_FRONT_EMISSION 6
630 #define MAT_ATTRIB_BACK_EMISSION 7
631 #define MAT_ATTRIB_FRONT_SHININESS 8
632 #define MAT_ATTRIB_BACK_SHININESS 9
633 #define MAT_ATTRIB_FRONT_INDEXES 10
634 #define MAT_ATTRIB_BACK_INDEXES 11
635 #define MAT_ATTRIB_MAX 12
637 #define MAT_ATTRIB_AMBIENT(f) (MAT_ATTRIB_FRONT_AMBIENT+(f))
638 #define MAT_ATTRIB_DIFFUSE(f) (MAT_ATTRIB_FRONT_DIFFUSE+(f))
639 #define MAT_ATTRIB_SPECULAR(f) (MAT_ATTRIB_FRONT_SPECULAR+(f))
640 #define MAT_ATTRIB_EMISSION(f) (MAT_ATTRIB_FRONT_EMISSION+(f))
641 #define MAT_ATTRIB_SHININESS(f)(MAT_ATTRIB_FRONT_SHININESS+(f))
642 #define MAT_ATTRIB_INDEXES(f) (MAT_ATTRIB_FRONT_INDEXES+(f))
644 #define MAT_INDEX_AMBIENT 0
645 #define MAT_INDEX_DIFFUSE 1
646 #define MAT_INDEX_SPECULAR 2
648 #define MAT_BIT_FRONT_AMBIENT (1<<MAT_ATTRIB_FRONT_AMBIENT)
649 #define MAT_BIT_BACK_AMBIENT (1<<MAT_ATTRIB_BACK_AMBIENT)
650 #define MAT_BIT_FRONT_DIFFUSE (1<<MAT_ATTRIB_FRONT_DIFFUSE)
651 #define MAT_BIT_BACK_DIFFUSE (1<<MAT_ATTRIB_BACK_DIFFUSE)
652 #define MAT_BIT_FRONT_SPECULAR (1<<MAT_ATTRIB_FRONT_SPECULAR)
653 #define MAT_BIT_BACK_SPECULAR (1<<MAT_ATTRIB_BACK_SPECULAR)
654 #define MAT_BIT_FRONT_EMISSION (1<<MAT_ATTRIB_FRONT_EMISSION)
655 #define MAT_BIT_BACK_EMISSION (1<<MAT_ATTRIB_BACK_EMISSION)
656 #define MAT_BIT_FRONT_SHININESS (1<<MAT_ATTRIB_FRONT_SHININESS)
657 #define MAT_BIT_BACK_SHININESS (1<<MAT_ATTRIB_BACK_SHININESS)
658 #define MAT_BIT_FRONT_INDEXES (1<<MAT_ATTRIB_FRONT_INDEXES)
659 #define MAT_BIT_BACK_INDEXES (1<<MAT_ATTRIB_BACK_INDEXES)
662 #define FRONT_MATERIAL_BITS (MAT_BIT_FRONT_EMISSION | \
663 MAT_BIT_FRONT_AMBIENT | \
664 MAT_BIT_FRONT_DIFFUSE | \
665 MAT_BIT_FRONT_SPECULAR | \
666 MAT_BIT_FRONT_SHININESS | \
667 MAT_BIT_FRONT_INDEXES)
669 #define BACK_MATERIAL_BITS (MAT_BIT_BACK_EMISSION | \
670 MAT_BIT_BACK_AMBIENT | \
671 MAT_BIT_BACK_DIFFUSE | \
672 MAT_BIT_BACK_SPECULAR | \
673 MAT_BIT_BACK_SHININESS | \
674 MAT_BIT_BACK_INDEXES)
676 #define ALL_MATERIAL_BITS (FRONT_MATERIAL_BITS | BACK_MATERIAL_BITS)
685 GLfloat Attrib
[MAT_ATTRIB_MAX
][4];
693 #define LIGHT_SPOT 0x1
694 #define LIGHT_LOCAL_VIEWER 0x2
695 #define LIGHT_POSITIONAL 0x4
696 #define LIGHT_NEED_VERTICES (LIGHT_POSITIONAL|LIGHT_LOCAL_VIEWER)
701 * Light source state.
705 struct gl_light
*next
; /**< double linked list with sentinel */
706 struct gl_light
*prev
;
708 GLfloat Ambient
[4]; /**< ambient color */
709 GLfloat Diffuse
[4]; /**< diffuse color */
710 GLfloat Specular
[4]; /**< specular color */
711 GLfloat EyePosition
[4]; /**< position in eye coordinates */
712 GLfloat SpotDirection
[4]; /**< spotlight direction in eye coordinates */
713 GLfloat SpotExponent
;
714 GLfloat SpotCutoff
; /**< in degrees */
715 GLfloat _CosCutoff
; /**< = MAX(0, cos(SpotCutoff)) */
716 GLfloat ConstantAttenuation
;
717 GLfloat LinearAttenuation
;
718 GLfloat QuadraticAttenuation
;
719 GLboolean Enabled
; /**< On/off flag */
722 * \name Derived fields
725 GLbitfield _Flags
; /**< Mask of LIGHT_x bits defined above */
727 GLfloat _Position
[4]; /**< position in eye/obj coordinates */
728 GLfloat _VP_inf_norm
[3]; /**< Norm direction to infinite light */
729 GLfloat _h_inf_norm
[3]; /**< Norm( _VP_inf_norm + <0,0,1> ) */
730 GLfloat _NormSpotDirection
[4]; /**< normalized spotlight direction */
731 GLfloat _VP_inf_spot_attenuation
;
733 GLfloat _MatAmbient
[2][3]; /**< material ambient * light ambient */
734 GLfloat _MatDiffuse
[2][3]; /**< material diffuse * light diffuse */
735 GLfloat _MatSpecular
[2][3]; /**< material spec * light specular */
745 GLfloat Ambient
[4]; /**< ambient color */
746 GLboolean LocalViewer
; /**< Local (or infinite) view point? */
747 GLboolean TwoSide
; /**< Two (or one) sided lighting? */
748 GLenum ColorControl
; /**< either GL_SINGLE_COLOR
749 * or GL_SEPARATE_SPECULAR_COLOR */
754 * Accumulation buffer attribute group (GL_ACCUM_BUFFER_BIT)
756 struct gl_accum_attrib
758 GLfloat ClearColor
[4]; /**< Accumulation buffer clear color */
763 * Used for storing clear color, texture border color, etc.
764 * The float values are typically unclamped.
775 * Color buffer attribute group (GL_COLOR_BUFFER_BIT).
777 struct gl_colorbuffer_attrib
779 GLuint ClearIndex
; /**< Index for glClear */
780 union gl_color_union ClearColor
; /**< Color for glClear, unclamped */
781 GLuint IndexMask
; /**< Color index write mask */
782 GLubyte ColorMask
[MAX_DRAW_BUFFERS
][4]; /**< Each flag is 0xff or 0x0 */
784 GLenum DrawBuffer
[MAX_DRAW_BUFFERS
]; /**< Which buffer to draw into */
787 * \name alpha testing
790 GLboolean AlphaEnabled
; /**< Alpha test enabled flag */
791 GLenum AlphaFunc
; /**< Alpha test function */
792 GLfloat AlphaRefUnclamped
;
793 GLclampf AlphaRef
; /**< Alpha reference value */
800 GLbitfield BlendEnabled
; /**< Per-buffer blend enable flags */
802 /* NOTE: this does _not_ depend on fragment clamping or any other clamping
803 * control, only on the fixed-pointness of the render target.
804 * The query does however depend on fragment color clamping.
806 GLfloat BlendColorUnclamped
[4]; /**< Blending color */
807 GLfloat BlendColor
[4]; /**< Blending color */
811 GLenum SrcRGB
; /**< RGB blend source term */
812 GLenum DstRGB
; /**< RGB blend dest term */
813 GLenum SrcA
; /**< Alpha blend source term */
814 GLenum DstA
; /**< Alpha blend dest term */
815 GLenum EquationRGB
; /**< GL_ADD, GL_SUBTRACT, etc. */
816 GLenum EquationA
; /**< GL_ADD, GL_SUBTRACT, etc. */
818 * Set if any blend factor uses SRC1. Computed at the time blend factors
821 GLboolean _UsesDualSrc
;
822 } Blend
[MAX_DRAW_BUFFERS
];
823 /** Are the blend func terms currently different for each buffer/target? */
824 GLboolean _BlendFuncPerBuffer
;
825 /** Are the blend equations currently different for each buffer/target? */
826 GLboolean _BlendEquationPerBuffer
;
833 GLenum LogicOp
; /**< Logic operator */
834 GLboolean IndexLogicOpEnabled
; /**< Color index logic op enabled flag */
835 GLboolean ColorLogicOpEnabled
; /**< RGBA logic op enabled flag */
838 GLboolean DitherFlag
; /**< Dither enable flag */
840 GLenum ClampFragmentColor
; /**< GL_TRUE, GL_FALSE or GL_FIXED_ONLY_ARB */
841 GLboolean _ClampFragmentColor
; /** < with GL_FIXED_ONLY_ARB resolved */
842 GLenum ClampReadColor
; /**< GL_TRUE, GL_FALSE or GL_FIXED_ONLY_ARB */
843 GLboolean _ClampReadColor
; /** < with GL_FIXED_ONLY_ARB resolved */
845 GLboolean sRGBEnabled
; /**< Framebuffer sRGB blending/updating requested */
850 * Current attribute group (GL_CURRENT_BIT).
852 struct gl_current_attrib
855 * \name Current vertex attributes.
856 * \note Values are valid only after FLUSH_VERTICES has been called.
857 * \note Index and Edgeflag current values are stored as floats in the
858 * SIX and SEVEN attribute slots.
860 GLfloat Attrib
[VERT_ATTRIB_MAX
][4]; /**< Position, color, texcoords, etc */
863 * \name Current raster position attributes (always valid).
864 * \note This set of attributes is very similar to the SWvertex struct.
867 GLfloat RasterPos
[4];
868 GLfloat RasterDistance
;
869 GLfloat RasterColor
[4];
870 GLfloat RasterSecondaryColor
[4];
871 GLfloat RasterTexCoords
[MAX_TEXTURE_COORD_UNITS
][4];
872 GLboolean RasterPosValid
;
878 * Depth buffer attribute group (GL_DEPTH_BUFFER_BIT).
880 struct gl_depthbuffer_attrib
882 GLenum Func
; /**< Function for depth buffer compare */
883 GLclampd Clear
; /**< Value to clear depth buffer to */
884 GLboolean Test
; /**< Depth buffering enabled flag */
885 GLboolean Mask
; /**< Depth buffer writable? */
886 GLboolean BoundsTest
; /**< GL_EXT_depth_bounds_test */
887 GLfloat BoundsMin
, BoundsMax
;/**< GL_EXT_depth_bounds_test */
892 * Evaluator attribute group (GL_EVAL_BIT).
894 struct gl_eval_attrib
900 GLboolean Map1Color4
;
902 GLboolean Map1Normal
;
903 GLboolean Map1TextureCoord1
;
904 GLboolean Map1TextureCoord2
;
905 GLboolean Map1TextureCoord3
;
906 GLboolean Map1TextureCoord4
;
907 GLboolean Map1Vertex3
;
908 GLboolean Map1Vertex4
;
909 GLboolean Map2Color4
;
911 GLboolean Map2Normal
;
912 GLboolean Map2TextureCoord1
;
913 GLboolean Map2TextureCoord2
;
914 GLboolean Map2TextureCoord3
;
915 GLboolean Map2TextureCoord4
;
916 GLboolean Map2Vertex3
;
917 GLboolean Map2Vertex4
;
918 GLboolean AutoNormal
;
922 * \name Map Grid endpoints and divisions and calculated du values
926 GLfloat MapGrid1u1
, MapGrid1u2
, MapGrid1du
;
927 GLint MapGrid2un
, MapGrid2vn
;
928 GLfloat MapGrid2u1
, MapGrid2u2
, MapGrid2du
;
929 GLfloat MapGrid2v1
, MapGrid2v2
, MapGrid2dv
;
935 * Fog attribute group (GL_FOG_BIT).
939 GLboolean Enabled
; /**< Fog enabled flag */
940 GLfloat ColorUnclamped
[4]; /**< Fog color */
941 GLfloat Color
[4]; /**< Fog color */
942 GLfloat Density
; /**< Density >= 0.0 */
943 GLfloat Start
; /**< Start distance in eye coords */
944 GLfloat End
; /**< End distance in eye coords */
945 GLfloat Index
; /**< Fog index */
946 GLenum Mode
; /**< Fog mode */
947 GLboolean ColorSumEnabled
;
948 GLenum FogCoordinateSource
; /**< GL_EXT_fog_coord */
949 GLfloat _Scale
; /**< (End == Start) ? 1.0 : 1.0 / (End - Start) */
950 GLenum FogDistanceMode
; /**< GL_NV_fog_distance */
955 * Hint attribute group (GL_HINT_BIT).
957 * Values are always one of GL_FASTEST, GL_NICEST, or GL_DONT_CARE.
959 struct gl_hint_attrib
961 GLenum PerspectiveCorrection
;
964 GLenum PolygonSmooth
;
966 GLenum ClipVolumeClipping
; /**< GL_EXT_clip_volume_hint */
967 GLenum TextureCompression
; /**< GL_ARB_texture_compression */
968 GLenum GenerateMipmap
; /**< GL_SGIS_generate_mipmap */
969 GLenum FragmentShaderDerivative
; /**< GL_ARB_fragment_shader */
974 * Lighting attribute group (GL_LIGHT_BIT).
976 struct gl_light_attrib
978 struct gl_light Light
[MAX_LIGHTS
]; /**< Array of light sources */
979 struct gl_lightmodel Model
; /**< Lighting model */
982 * Front and back material values.
983 * Note: must call FLUSH_VERTICES() before using.
985 struct gl_material Material
;
987 GLboolean Enabled
; /**< Lighting enabled flag */
988 GLenum ShadeModel
; /**< GL_FLAT or GL_SMOOTH */
989 GLenum ProvokingVertex
; /**< GL_EXT_provoking_vertex */
990 GLenum ColorMaterialFace
; /**< GL_FRONT, BACK or FRONT_AND_BACK */
991 GLenum ColorMaterialMode
; /**< GL_AMBIENT, GL_DIFFUSE, etc */
992 GLbitfield _ColorMaterialBitmask
; /**< bitmask formed from Face and Mode */
993 GLboolean ColorMaterialEnabled
;
994 GLenum ClampVertexColor
; /**< GL_TRUE, GL_FALSE, GL_FIXED_ONLY */
995 GLboolean _ClampVertexColor
;
997 struct gl_light EnabledList
; /**< List sentinel */
1000 * Derived state for optimizations:
1003 GLboolean _NeedEyeCoords
;
1004 GLboolean _NeedVertices
; /**< Use fast shader? */
1005 GLfloat _BaseColor
[2][3];
1011 * Line attribute group (GL_LINE_BIT).
1013 struct gl_line_attrib
1015 GLboolean SmoothFlag
; /**< GL_LINE_SMOOTH enabled? */
1016 GLboolean StippleFlag
; /**< GL_LINE_STIPPLE enabled? */
1017 GLushort StipplePattern
; /**< Stipple pattern */
1018 GLint StippleFactor
; /**< Stipple repeat factor */
1019 GLfloat Width
; /**< Line width */
1024 * Display list attribute group (GL_LIST_BIT).
1026 struct gl_list_attrib
1033 * Multisample attribute group (GL_MULTISAMPLE_BIT).
1035 struct gl_multisample_attrib
1038 GLboolean _Enabled
; /**< true if Enabled and multisample buffer */
1039 GLboolean SampleAlphaToCoverage
;
1040 GLboolean SampleAlphaToOne
;
1041 GLboolean SampleCoverage
;
1042 GLfloat SampleCoverageValue
;
1043 GLboolean SampleCoverageInvert
;
1045 /* ARB_texture_multisample / GL3.2 additions */
1046 GLboolean SampleMask
;
1047 GLbitfield SampleMaskValue
; /* GL spec defines this as an array but >32x MSAA is
1054 * A pixelmap (see glPixelMap)
1059 GLfloat Map
[MAX_PIXEL_MAP_TABLE
];
1064 * Collection of all pixelmaps
1068 struct gl_pixelmap RtoR
; /**< i.e. GL_PIXEL_MAP_R_TO_R */
1069 struct gl_pixelmap GtoG
;
1070 struct gl_pixelmap BtoB
;
1071 struct gl_pixelmap AtoA
;
1072 struct gl_pixelmap ItoR
;
1073 struct gl_pixelmap ItoG
;
1074 struct gl_pixelmap ItoB
;
1075 struct gl_pixelmap ItoA
;
1076 struct gl_pixelmap ItoI
;
1077 struct gl_pixelmap StoS
;
1082 * Pixel attribute group (GL_PIXEL_MODE_BIT).
1084 struct gl_pixel_attrib
1086 GLenum ReadBuffer
; /**< source buffer for glRead/CopyPixels() */
1088 /*--- Begin Pixel Transfer State ---*/
1089 /* Fields are in the order in which they're applied... */
1091 /** Scale & Bias (index shift, offset) */
1093 GLfloat RedBias
, RedScale
;
1094 GLfloat GreenBias
, GreenScale
;
1095 GLfloat BlueBias
, BlueScale
;
1096 GLfloat AlphaBias
, AlphaScale
;
1097 GLfloat DepthBias
, DepthScale
;
1098 GLint IndexShift
, IndexOffset
;
1102 /* Note: actual pixel maps are not part of this attrib group */
1103 GLboolean MapColorFlag
;
1104 GLboolean MapStencilFlag
;
1106 /*--- End Pixel Transfer State ---*/
1109 GLfloat ZoomX
, ZoomY
;
1114 * Point attribute group (GL_POINT_BIT).
1116 struct gl_point_attrib
1118 GLboolean SmoothFlag
; /**< True if GL_POINT_SMOOTH is enabled */
1119 GLfloat Size
; /**< User-specified point size */
1120 GLfloat Params
[3]; /**< GL_EXT_point_parameters */
1121 GLfloat MinSize
, MaxSize
; /**< GL_EXT_point_parameters */
1122 GLfloat Threshold
; /**< GL_EXT_point_parameters */
1123 GLboolean _Attenuated
; /**< True if Params != [1, 0, 0] */
1124 GLboolean PointSprite
; /**< GL_NV/ARB_point_sprite */
1125 GLboolean CoordReplace
[MAX_TEXTURE_COORD_UNITS
]; /**< GL_ARB_point_sprite*/
1126 GLenum SpriteRMode
; /**< GL_NV_point_sprite (only!) */
1127 GLenum SpriteOrigin
; /**< GL_ARB_point_sprite */
1132 * Polygon attribute group (GL_POLYGON_BIT).
1134 struct gl_polygon_attrib
1136 GLenum FrontFace
; /**< Either GL_CW or GL_CCW */
1137 GLenum FrontMode
; /**< Either GL_POINT, GL_LINE or GL_FILL */
1138 GLenum BackMode
; /**< Either GL_POINT, GL_LINE or GL_FILL */
1139 GLboolean _FrontBit
; /**< 0=GL_CCW, 1=GL_CW */
1140 GLboolean CullFlag
; /**< Culling on/off flag */
1141 GLboolean SmoothFlag
; /**< True if GL_POLYGON_SMOOTH is enabled */
1142 GLboolean StippleFlag
; /**< True if GL_POLYGON_STIPPLE is enabled */
1143 GLenum CullFaceMode
; /**< Culling mode GL_FRONT or GL_BACK */
1144 GLfloat OffsetFactor
; /**< Polygon offset factor, from user */
1145 GLfloat OffsetUnits
; /**< Polygon offset units, from user */
1146 GLboolean OffsetPoint
; /**< Offset in GL_POINT mode */
1147 GLboolean OffsetLine
; /**< Offset in GL_LINE mode */
1148 GLboolean OffsetFill
; /**< Offset in GL_FILL mode */
1153 * Scissor attributes (GL_SCISSOR_BIT).
1155 struct gl_scissor_attrib
1157 GLboolean Enabled
; /**< Scissor test enabled? */
1158 GLint X
, Y
; /**< Lower left corner of box */
1159 GLsizei Width
, Height
; /**< Size of box */
1164 * Stencil attribute group (GL_STENCIL_BUFFER_BIT).
1166 * Three sets of stencil data are tracked so that OpenGL 2.0,
1167 * GL_EXT_stencil_two_side, and GL_ATI_separate_stencil can all be supported
1168 * simultaneously. In each of the stencil state arrays, element 0 corresponds
1169 * to GL_FRONT. Element 1 corresponds to the OpenGL 2.0 /
1170 * GL_ATI_separate_stencil GL_BACK state. Element 2 corresponds to the
1171 * GL_EXT_stencil_two_side GL_BACK state.
1173 * The derived value \c _BackFace is either 1 or 2 depending on whether or
1174 * not GL_STENCIL_TEST_TWO_SIDE_EXT is enabled.
1176 * The derived value \c _TestTwoSide is set when the front-face and back-face
1177 * stencil state are different.
1179 struct gl_stencil_attrib
1181 GLboolean Enabled
; /**< Enabled flag */
1182 GLboolean TestTwoSide
; /**< GL_EXT_stencil_two_side */
1183 GLubyte ActiveFace
; /**< GL_EXT_stencil_two_side (0 or 2) */
1184 GLboolean _Enabled
; /**< Enabled and stencil buffer present */
1185 GLboolean _TestTwoSide
;
1186 GLubyte _BackFace
; /**< Current back stencil state (1 or 2) */
1187 GLenum Function
[3]; /**< Stencil function */
1188 GLenum FailFunc
[3]; /**< Fail function */
1189 GLenum ZPassFunc
[3]; /**< Depth buffer pass function */
1190 GLenum ZFailFunc
[3]; /**< Depth buffer fail function */
1191 GLint Ref
[3]; /**< Reference value */
1192 GLuint ValueMask
[3]; /**< Value mask */
1193 GLuint WriteMask
[3]; /**< Write mask */
1194 GLuint Clear
; /**< Clear value */
1199 * An index for each type of texture object. These correspond to the GL
1200 * texture target enums, such as GL_TEXTURE_2D, GL_TEXTURE_CUBE_MAP, etc.
1201 * Note: the order is from highest priority to lowest priority.
1205 TEXTURE_2D_MULTISAMPLE_INDEX
,
1206 TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX
,
1207 TEXTURE_CUBE_ARRAY_INDEX
,
1208 TEXTURE_BUFFER_INDEX
,
1209 TEXTURE_2D_ARRAY_INDEX
,
1210 TEXTURE_1D_ARRAY_INDEX
,
1211 TEXTURE_EXTERNAL_INDEX
,
1222 * Bit flags for each type of texture object
1223 * Used for Texture.Unit[]._ReallyEnabled flags.
1226 #define TEXTURE_2D_MULTISAMPLE_BIT (1 << TEXTURE_2D_MULTISAMPLE_INDEX)
1227 #define TEXTURE_2D_MULTISAMPLE_ARRAY_BIT (1 << TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX)
1228 #define TEXTURE_CUBE_ARRAY_BIT (1 << TEXTURE_CUBE_ARRAY_INDEX)
1229 #define TEXTURE_BUFFER_BIT (1 << TEXTURE_BUFFER_INDEX)
1230 #define TEXTURE_2D_ARRAY_BIT (1 << TEXTURE_2D_ARRAY_INDEX)
1231 #define TEXTURE_1D_ARRAY_BIT (1 << TEXTURE_1D_ARRAY_INDEX)
1232 #define TEXTURE_EXTERNAL_BIT (1 << TEXTURE_EXTERNAL_INDEX)
1233 #define TEXTURE_CUBE_BIT (1 << TEXTURE_CUBE_INDEX)
1234 #define TEXTURE_3D_BIT (1 << TEXTURE_3D_INDEX)
1235 #define TEXTURE_RECT_BIT (1 << TEXTURE_RECT_INDEX)
1236 #define TEXTURE_2D_BIT (1 << TEXTURE_2D_INDEX)
1237 #define TEXTURE_1D_BIT (1 << TEXTURE_1D_INDEX)
1242 * Texture image state. Drivers will typically create a subclass of this
1243 * with extra fields for memory buffers, etc.
1245 struct gl_texture_image
1247 GLint InternalFormat
; /**< Internal format as given by the user */
1248 GLenum _BaseFormat
; /**< Either GL_RGB, GL_RGBA, GL_ALPHA,
1249 * GL_LUMINANCE, GL_LUMINANCE_ALPHA,
1250 * GL_INTENSITY, GL_DEPTH_COMPONENT or
1251 * GL_DEPTH_STENCIL_EXT only. Used for
1252 * choosing TexEnv arithmetic.
1254 gl_format TexFormat
; /**< The actual texture memory format */
1256 GLuint Border
; /**< 0 or 1 */
1257 GLuint Width
; /**< = 2^WidthLog2 + 2*Border */
1258 GLuint Height
; /**< = 2^HeightLog2 + 2*Border */
1259 GLuint Depth
; /**< = 2^DepthLog2 + 2*Border */
1260 GLuint Width2
; /**< = Width - 2*Border */
1261 GLuint Height2
; /**< = Height - 2*Border */
1262 GLuint Depth2
; /**< = Depth - 2*Border */
1263 GLuint WidthLog2
; /**< = log2(Width2) */
1264 GLuint HeightLog2
; /**< = log2(Height2) */
1265 GLuint DepthLog2
; /**< = log2(Depth2) */
1266 GLuint MaxNumLevels
; /**< = maximum possible number of mipmap
1267 levels, computed from the dimensions */
1269 struct gl_texture_object
*TexObject
; /**< Pointer back to parent object */
1270 GLuint Level
; /**< Which mipmap level am I? */
1271 /** Cube map face: index into gl_texture_object::Image[] array */
1274 /** GL_ARB_texture_multisample */
1275 GLuint NumSamples
; /**< Sample count, or 0 for non-multisample */
1276 GLboolean FixedSampleLocations
; /**< Same sample locations for all pixels? */
1281 * Indexes for cube map faces.
1296 * Sampler object state. These objects are new with GL_ARB_sampler_objects
1297 * and OpenGL 3.3. Legacy texture objects also contain a sampler object.
1299 struct gl_sampler_object
1304 GLenum WrapS
; /**< S-axis texture image wrap mode */
1305 GLenum WrapT
; /**< T-axis texture image wrap mode */
1306 GLenum WrapR
; /**< R-axis texture image wrap mode */
1307 GLenum MinFilter
; /**< minification filter */
1308 GLenum MagFilter
; /**< magnification filter */
1309 union gl_color_union BorderColor
; /**< Interpreted according to texture format */
1310 GLfloat MinLod
; /**< min lambda, OpenGL 1.2 */
1311 GLfloat MaxLod
; /**< max lambda, OpenGL 1.2 */
1312 GLfloat LodBias
; /**< OpenGL 1.4 */
1313 GLfloat MaxAnisotropy
; /**< GL_EXT_texture_filter_anisotropic */
1314 GLenum CompareMode
; /**< GL_ARB_shadow */
1315 GLenum CompareFunc
; /**< GL_ARB_shadow */
1316 GLenum sRGBDecode
; /**< GL_DECODE_EXT or GL_SKIP_DECODE_EXT */
1317 GLboolean CubeMapSeamless
; /**< GL_AMD_seamless_cubemap_per_texture */
1322 * Texture object state. Contains the array of mipmap images, border color,
1323 * wrap modes, filter modes, and shadow/texcompare state.
1325 struct gl_texture_object
1327 _glthread_Mutex Mutex
; /**< for thread safety */
1328 GLint RefCount
; /**< reference count */
1329 GLuint Name
; /**< the user-visible texture object ID */
1330 GLenum Target
; /**< GL_TEXTURE_1D, GL_TEXTURE_2D, etc. */
1332 struct gl_sampler_object Sampler
;
1334 GLenum DepthMode
; /**< GL_ARB_depth_texture */
1336 GLfloat Priority
; /**< in [0,1] */
1337 GLint BaseLevel
; /**< min mipmap level, OpenGL 1.2 */
1338 GLint MaxLevel
; /**< max mipmap level, OpenGL 1.2 */
1339 GLint _MaxLevel
; /**< actual max mipmap level (q in the spec) */
1340 GLfloat _MaxLambda
; /**< = _MaxLevel - BaseLevel (q - b in spec) */
1341 GLint CropRect
[4]; /**< GL_OES_draw_texture */
1342 GLenum Swizzle
[4]; /**< GL_EXT_texture_swizzle */
1343 GLuint _Swizzle
; /**< same as Swizzle, but SWIZZLE_* format */
1344 GLboolean GenerateMipmap
; /**< GL_SGIS_generate_mipmap */
1345 GLboolean _BaseComplete
; /**< Is the base texture level valid? */
1346 GLboolean _MipmapComplete
; /**< Is the whole mipmap valid? */
1347 GLboolean _IsIntegerFormat
; /**< Does the texture store integer values? */
1348 GLboolean _RenderToTexture
; /**< Any rendering to this texture? */
1349 GLboolean Purgeable
; /**< Is the buffer purgeable under memory pressure? */
1350 GLboolean Immutable
; /**< GL_ARB_texture_storage */
1352 /** Actual texture images, indexed by [cube face] and [mipmap level] */
1353 struct gl_texture_image
*Image
[MAX_FACES
][MAX_TEXTURE_LEVELS
];
1355 /** GL_ARB_texture_buffer_object */
1356 struct gl_buffer_object
*BufferObject
;
1357 GLenum BufferObjectFormat
;
1358 /** Equivalent Mesa format for BufferObjectFormat. */
1359 gl_format _BufferObjectFormat
;
1360 /** GL_ARB_texture_buffer_range */
1361 GLintptr BufferOffset
;
1362 GLsizeiptr BufferSize
; /**< if this is -1, use BufferObject->Size instead */
1364 /** GL_OES_EGL_image_external */
1365 GLint RequiredTextureImageUnits
;
1369 /** Up to four combiner sources are possible with GL_NV_texture_env_combine4 */
1370 #define MAX_COMBINER_TERMS 4
1374 * Texture combine environment state.
1376 struct gl_tex_env_combine_state
1378 GLenum ModeRGB
; /**< GL_REPLACE, GL_DECAL, GL_ADD, etc. */
1379 GLenum ModeA
; /**< GL_REPLACE, GL_DECAL, GL_ADD, etc. */
1380 /** Source terms: GL_PRIMARY_COLOR, GL_TEXTURE, etc */
1381 GLenum SourceRGB
[MAX_COMBINER_TERMS
];
1382 GLenum SourceA
[MAX_COMBINER_TERMS
];
1383 /** Source operands: GL_SRC_COLOR, GL_ONE_MINUS_SRC_COLOR, etc */
1384 GLenum OperandRGB
[MAX_COMBINER_TERMS
];
1385 GLenum OperandA
[MAX_COMBINER_TERMS
];
1386 GLuint ScaleShiftRGB
; /**< 0, 1 or 2 */
1387 GLuint ScaleShiftA
; /**< 0, 1 or 2 */
1388 GLuint _NumArgsRGB
; /**< Number of inputs used for the RGB combiner */
1389 GLuint _NumArgsA
; /**< Number of inputs used for the A combiner */
1394 * TexGenEnabled flags.
1401 #define STR_BITS (S_BIT | T_BIT | R_BIT)
1406 * Bit flag versions of the corresponding GL_ constants.
1409 #define TEXGEN_SPHERE_MAP 0x1
1410 #define TEXGEN_OBJ_LINEAR 0x2
1411 #define TEXGEN_EYE_LINEAR 0x4
1412 #define TEXGEN_REFLECTION_MAP_NV 0x8
1413 #define TEXGEN_NORMAL_MAP_NV 0x10
1415 #define TEXGEN_NEED_NORMALS (TEXGEN_SPHERE_MAP | \
1416 TEXGEN_REFLECTION_MAP_NV | \
1417 TEXGEN_NORMAL_MAP_NV)
1418 #define TEXGEN_NEED_EYE_COORD (TEXGEN_SPHERE_MAP | \
1419 TEXGEN_REFLECTION_MAP_NV | \
1420 TEXGEN_NORMAL_MAP_NV | \
1426 /** Tex-gen enabled for texture unit? */
1427 #define ENABLE_TEXGEN(unit) (1 << (unit))
1429 /** Non-identity texture matrix for texture unit? */
1430 #define ENABLE_TEXMAT(unit) (1 << (unit))
1434 * Texture coord generation state.
1438 GLenum Mode
; /**< GL_EYE_LINEAR, GL_SPHERE_MAP, etc */
1439 GLbitfield _ModeBit
; /**< TEXGEN_x bit corresponding to Mode */
1440 GLfloat ObjectPlane
[4];
1441 GLfloat EyePlane
[4];
1446 * Texture unit state. Contains enable flags, texture environment/function/
1447 * combiners, texgen state, and pointers to current texture objects.
1449 struct gl_texture_unit
1451 GLbitfield Enabled
; /**< bitmask of TEXTURE_*_BIT flags */
1452 GLbitfield _ReallyEnabled
; /**< 0 or exactly one of TEXTURE_*_BIT flags */
1454 GLenum EnvMode
; /**< GL_MODULATE, GL_DECAL, GL_BLEND, etc. */
1455 GLclampf EnvColor
[4];
1456 GLfloat EnvColorUnclamped
[4];
1458 struct gl_texgen GenS
;
1459 struct gl_texgen GenT
;
1460 struct gl_texgen GenR
;
1461 struct gl_texgen GenQ
;
1462 GLbitfield TexGenEnabled
; /**< Bitwise-OR of [STRQ]_BIT values */
1463 GLbitfield _GenFlags
; /**< Bitwise-OR of Gen[STRQ]._ModeBit */
1465 GLfloat LodBias
; /**< for biasing mipmap levels */
1467 GLfloat RotMatrix
[4]; /* 2x2 matrix */
1469 /** Current sampler object (GL_ARB_sampler_objects) */
1470 struct gl_sampler_object
*Sampler
;
1473 * \name GL_EXT_texture_env_combine
1475 struct gl_tex_env_combine_state Combine
;
1478 * Derived state based on \c EnvMode and the \c BaseFormat of the
1479 * currently enabled texture.
1481 struct gl_tex_env_combine_state _EnvMode
;
1484 * Currently enabled combiner state. This will point to either
1485 * \c Combine or \c _EnvMode.
1487 struct gl_tex_env_combine_state
*_CurrentCombine
;
1489 /** Current texture object pointers */
1490 struct gl_texture_object
*CurrentTex
[NUM_TEXTURE_TARGETS
];
1492 /** Points to highest priority, complete and enabled texture object */
1493 struct gl_texture_object
*_Current
;
1498 * Texture attribute group (GL_TEXTURE_BIT).
1500 struct gl_texture_attrib
1502 GLuint CurrentUnit
; /**< GL_ACTIVE_TEXTURE */
1503 struct gl_texture_unit Unit
[MAX_COMBINED_TEXTURE_IMAGE_UNITS
];
1505 struct gl_texture_object
*ProxyTex
[NUM_TEXTURE_TARGETS
];
1507 /** GL_ARB_texture_buffer_object */
1508 struct gl_buffer_object
*BufferObject
;
1510 /** GL_ARB_seamless_cubemap */
1511 GLboolean CubeMapSeamless
;
1513 /** Texture units/samplers used by vertex or fragment texturing */
1514 GLbitfield _EnabledUnits
;
1516 /** Texture coord units/sets used for fragment texturing */
1517 GLbitfield _EnabledCoordUnits
;
1519 /** Texture coord units that have texgen enabled */
1520 GLbitfield _TexGenEnabled
;
1522 /** Texture coord units that have non-identity matrices */
1523 GLbitfield _TexMatEnabled
;
1525 /** Bitwise-OR of all Texture.Unit[i]._GenFlags */
1526 GLbitfield _GenFlags
;
1531 * Data structure representing a single clip plane (e.g. one of the elements
1532 * of the ctx->Transform.EyeUserPlane or ctx->Transform._ClipUserPlane array).
1534 typedef GLfloat gl_clip_plane
[4];
1538 * Transformation attribute group (GL_TRANSFORM_BIT).
1540 struct gl_transform_attrib
1542 GLenum MatrixMode
; /**< Matrix mode */
1543 gl_clip_plane EyeUserPlane
[MAX_CLIP_PLANES
]; /**< User clip planes */
1544 gl_clip_plane _ClipUserPlane
[MAX_CLIP_PLANES
]; /**< derived */
1545 GLbitfield ClipPlanesEnabled
; /**< on/off bitmask */
1546 GLboolean Normalize
; /**< Normalize all normals? */
1547 GLboolean RescaleNormals
; /**< GL_EXT_rescale_normal */
1548 GLboolean RasterPositionUnclipped
; /**< GL_IBM_rasterpos_clip */
1549 GLboolean DepthClamp
; /**< GL_ARB_depth_clamp */
1551 GLfloat CullEyePos
[4];
1552 GLfloat CullObjPos
[4];
1557 * Viewport attribute group (GL_VIEWPORT_BIT).
1559 struct gl_viewport_attrib
1561 GLint X
, Y
; /**< position */
1562 GLsizei Width
, Height
; /**< size */
1563 GLfloat Near
, Far
; /**< Depth buffer range */
1564 GLmatrix _WindowMap
; /**< Mapping transformation as a matrix. */
1569 * GL_ARB_vertex/pixel_buffer_object buffer object
1571 struct gl_buffer_object
1573 _glthread_Mutex Mutex
;
1576 GLenum Usage
; /**< GL_STREAM_DRAW_ARB, GL_STREAM_READ_ARB, etc. */
1577 GLsizeiptrARB Size
; /**< Size of buffer storage in bytes */
1578 GLubyte
*Data
; /**< Location of storage either in RAM or VRAM. */
1579 /** Fields describing a mapped buffer */
1581 GLbitfield AccessFlags
; /**< Mask of GL_MAP_x_BIT flags */
1582 GLvoid
*Pointer
; /**< User-space address of mapping */
1583 GLintptr Offset
; /**< Mapped offset */
1584 GLsizeiptr Length
; /**< Mapped length */
1586 GLboolean DeletePending
; /**< true if buffer object is removed from the hash */
1587 GLboolean Written
; /**< Ever written to? (for debugging) */
1588 GLboolean Purgeable
; /**< Is the buffer purgeable under memory pressure? */
1593 * Client pixel packing/unpacking attributes
1595 struct gl_pixelstore_attrib
1603 GLboolean SwapBytes
;
1605 GLboolean Invert
; /**< GL_MESA_pack_invert */
1606 struct gl_buffer_object
*BufferObj
; /**< GL_ARB_pixel_buffer_object */
1611 * Client vertex array attributes
1613 struct gl_client_array
1615 GLint Size
; /**< components per element (1,2,3,4) */
1616 GLenum Type
; /**< datatype: GL_FLOAT, GL_INT, etc */
1617 GLenum Format
; /**< default: GL_RGBA, but may be GL_BGRA */
1618 GLsizei Stride
; /**< user-specified stride */
1619 GLsizei StrideB
; /**< actual stride in bytes */
1620 const GLubyte
*Ptr
; /**< Points to array data */
1621 GLboolean Enabled
; /**< Enabled flag is a boolean */
1622 GLboolean Normalized
; /**< GL_ARB_vertex_program */
1623 GLboolean Integer
; /**< Integer-valued? */
1624 GLuint InstanceDivisor
; /**< GL_ARB_instanced_arrays */
1625 GLuint _ElementSize
; /**< size of each element in bytes */
1627 struct gl_buffer_object
*BufferObj
;/**< GL_ARB_vertex_buffer_object */
1628 GLuint _MaxElement
; /**< max element index into array buffer + 1 */
1633 * Collection of vertex arrays. Defined by the GL_APPLE_vertex_array_object
1634 * extension, but a nice encapsulation in any case.
1636 struct gl_array_object
1638 /** Name of the array object as received from glGenVertexArrayAPPLE. */
1642 _glthread_Mutex Mutex
;
1645 * Does the VAO use ARB semantics or Apple semantics?
1647 * There are several ways in which ARB_vertex_array_object and
1648 * APPLE_vertex_array_object VAOs have differing semantics. At the very
1651 * - ARB VAOs require that all array data be sourced from vertex buffer
1652 * objects, but Apple VAOs do not.
1654 * - ARB VAOs require that names come from GenVertexArrays.
1656 * This flag notes which behavior governs this VAO.
1658 GLboolean ARBsemantics
;
1661 * Has this array object been bound?
1663 GLboolean EverBound
;
1665 /** Vertex attribute arrays */
1666 struct gl_client_array VertexAttrib
[VERT_ATTRIB_MAX
];
1668 /** Mask of VERT_BIT_* values indicating which arrays are enabled */
1669 GLbitfield64 _Enabled
;
1671 /** Mask of VERT_BIT_* values indicating changed/dirty arrays */
1672 GLbitfield64 NewArrays
;
1675 * Min of all enabled arrays' _MaxElement. When arrays reside inside VBOs
1676 * we can determine the max legal (in bounds) glDrawElements array index.
1680 struct gl_buffer_object
*ElementArrayBufferObj
;
1685 * Vertex array state
1687 struct gl_array_attrib
1689 /** Currently bound array object. See _mesa_BindVertexArrayAPPLE() */
1690 struct gl_array_object
*ArrayObj
;
1692 /** The default vertex array object */
1693 struct gl_array_object
*DefaultArrayObj
;
1695 /** Array objects (GL_ARB/APPLE_vertex_array_object) */
1696 struct _mesa_HashTable
*Objects
;
1698 GLint ActiveTexture
; /**< Client Active Texture */
1699 GLuint LockFirst
; /**< GL_EXT_compiled_vertex_array */
1700 GLuint LockCount
; /**< GL_EXT_compiled_vertex_array */
1703 * \name Primitive restart controls
1705 * Primitive restart is enabled if either \c PrimitiveRestart or
1706 * \c PrimitiveRestart is set. If \c PrimitiveRestart is set, then
1707 * \c RestartIndex is used as the cut vertex. Otherwise ~0 is used.
1710 GLboolean PrimitiveRestart
;
1711 GLboolean PrimitiveRestartFixedIndex
;
1712 GLboolean _PrimitiveRestart
;
1713 GLuint RestartIndex
;
1714 GLuint _RestartIndex
;
1717 /* GL_ARB_vertex_buffer_object */
1718 struct gl_buffer_object
*ArrayBufferObj
;
1721 * Vertex arrays as consumed by a driver.
1722 * The array pointer is set up only by the VBO module. */
1723 const struct gl_client_array
**_DrawArrays
; /**< 0..VERT_ATTRIB_MAX-1 */
1728 * Feedback buffer state
1733 GLbitfield _Mask
; /**< FB_* bits */
1741 * Selection buffer state
1745 GLuint
*Buffer
; /**< selection buffer */
1746 GLuint BufferSize
; /**< size of the selection buffer */
1747 GLuint BufferCount
; /**< number of values in the selection buffer */
1748 GLuint Hits
; /**< number of records in the selection buffer */
1749 GLuint NameStackDepth
; /**< name stack depth */
1750 GLuint NameStack
[MAX_NAME_STACK_DEPTH
]; /**< name stack */
1751 GLboolean HitFlag
; /**< hit flag */
1752 GLfloat HitMinZ
; /**< minimum hit depth */
1753 GLfloat HitMaxZ
; /**< maximum hit depth */
1758 * 1-D Evaluator control points
1762 GLuint Order
; /**< Number of control points */
1763 GLfloat u1
, u2
, du
; /**< u1, u2, 1.0/(u2-u1) */
1764 GLfloat
*Points
; /**< Points to contiguous control points */
1769 * 2-D Evaluator control points
1773 GLuint Uorder
; /**< Number of control points in U dimension */
1774 GLuint Vorder
; /**< Number of control points in V dimension */
1777 GLfloat
*Points
; /**< Points to contiguous control points */
1782 * All evaluator control point state
1784 struct gl_evaluators
1790 struct gl_1d_map Map1Vertex3
;
1791 struct gl_1d_map Map1Vertex4
;
1792 struct gl_1d_map Map1Index
;
1793 struct gl_1d_map Map1Color4
;
1794 struct gl_1d_map Map1Normal
;
1795 struct gl_1d_map Map1Texture1
;
1796 struct gl_1d_map Map1Texture2
;
1797 struct gl_1d_map Map1Texture3
;
1798 struct gl_1d_map Map1Texture4
;
1805 struct gl_2d_map Map2Vertex3
;
1806 struct gl_2d_map Map2Vertex4
;
1807 struct gl_2d_map Map2Index
;
1808 struct gl_2d_map Map2Color4
;
1809 struct gl_2d_map Map2Normal
;
1810 struct gl_2d_map Map2Texture1
;
1811 struct gl_2d_map Map2Texture2
;
1812 struct gl_2d_map Map2Texture3
;
1813 struct gl_2d_map Map2Texture4
;
1818 struct gl_transform_feedback_varying_info
1827 * Per-output info vertex shaders for transform feedback.
1829 struct gl_transform_feedback_output
1831 unsigned OutputRegister
;
1832 unsigned OutputBuffer
;
1833 unsigned NumComponents
;
1835 /** offset (in DWORDs) of this output within the interleaved structure */
1839 * Offset into the output register of the data to output. For example,
1840 * if NumComponents is 2 and ComponentOffset is 1, then the data to
1841 * offset is in the y and z components of the output register.
1843 unsigned ComponentOffset
;
1847 /** Post-link transform feedback info. */
1848 struct gl_transform_feedback_info
1850 unsigned NumOutputs
;
1853 * Number of transform feedback buffers in use by this program.
1855 unsigned NumBuffers
;
1857 struct gl_transform_feedback_output
*Outputs
;
1859 /** Transform feedback varyings used for the linking of this shader program.
1861 * Use for glGetTransformFeedbackVarying().
1863 struct gl_transform_feedback_varying_info
*Varyings
;
1867 * Total number of components stored in each buffer. This may be used by
1868 * hardware back-ends to determine the correct stride when interleaving
1869 * multiple transform feedback outputs in the same buffer.
1871 unsigned BufferStride
[MAX_FEEDBACK_BUFFERS
];
1876 * Transform feedback object state
1878 struct gl_transform_feedback_object
1880 GLuint Name
; /**< AKA the object ID */
1882 GLboolean Active
; /**< Is transform feedback enabled? */
1883 GLboolean Paused
; /**< Is transform feedback paused? */
1884 GLboolean EndedAnytime
; /**< Has EndTransformFeedback been called
1886 GLboolean EverBound
; /**< Has this object been bound? */
1889 * GLES: if Active is true, remaining number of primitives which can be
1890 * rendered without overflow. This is necessary to track because GLES
1891 * requires us to generate INVALID_OPERATION if a call to glDrawArrays or
1892 * glDrawArraysInstanced would overflow transform feedback buffers.
1893 * Undefined if Active is false.
1895 * Not tracked for desktop GL since it's unnecessary.
1897 unsigned GlesRemainingPrims
;
1899 /** The feedback buffers */
1900 GLuint BufferNames
[MAX_FEEDBACK_BUFFERS
];
1901 struct gl_buffer_object
*Buffers
[MAX_FEEDBACK_BUFFERS
];
1903 /** Start of feedback data in dest buffer */
1904 GLintptr Offset
[MAX_FEEDBACK_BUFFERS
];
1907 * Max data to put into dest buffer (in bytes). Computed based on
1908 * RequestedSize and the actual size of the buffer.
1910 GLsizeiptr Size
[MAX_FEEDBACK_BUFFERS
];
1913 * Size that was specified when the buffer was bound. If the buffer was
1914 * bound with glBindBufferBase() or glBindBufferOffsetEXT(), this value is
1917 GLsizeiptr RequestedSize
[MAX_FEEDBACK_BUFFERS
];
1922 * Context state for transform feedback.
1924 struct gl_transform_feedback_state
1926 GLenum Mode
; /**< GL_POINTS, GL_LINES or GL_TRIANGLES */
1928 /** The general binding point (GL_TRANSFORM_FEEDBACK_BUFFER) */
1929 struct gl_buffer_object
*CurrentBuffer
;
1931 /** The table of all transform feedback objects */
1932 struct _mesa_HashTable
*Objects
;
1934 /** The current xform-fb object (GL_TRANSFORM_FEEDBACK_BINDING) */
1935 struct gl_transform_feedback_object
*CurrentObject
;
1937 /** The default xform-fb object (Name==0) */
1938 struct gl_transform_feedback_object
*DefaultObject
;
1943 * Names of the various vertex/fragment program register files, etc.
1945 * NOTE: first four tokens must fit into 2 bits (see t_vb_arbprogram.c)
1946 * All values should fit in a 4-bit field.
1948 * NOTE: PROGRAM_ENV_PARAM, PROGRAM_STATE_VAR,
1949 * PROGRAM_CONSTANT, and PROGRAM_UNIFORM can all be considered to
1950 * be "uniform" variables since they can only be set outside glBegin/End.
1951 * They're also all stored in the same Parameters array.
1955 PROGRAM_TEMPORARY
, /**< machine->Temporary[] */
1956 PROGRAM_INPUT
, /**< machine->Inputs[] */
1957 PROGRAM_OUTPUT
, /**< machine->Outputs[] */
1958 PROGRAM_LOCAL_PARAM
, /**< gl_program->LocalParams[] */
1959 PROGRAM_ENV_PARAM
, /**< gl_program->Parameters[] */
1960 PROGRAM_STATE_VAR
, /**< gl_program->Parameters[] */
1961 PROGRAM_CONSTANT
, /**< gl_program->Parameters[] */
1962 PROGRAM_UNIFORM
, /**< gl_program->Parameters[] */
1963 PROGRAM_WRITE_ONLY
, /**< A dummy, write-only register */
1964 PROGRAM_ADDRESS
, /**< machine->AddressReg */
1965 PROGRAM_SAMPLER
, /**< for shader samplers, compile-time only */
1966 PROGRAM_SYSTEM_VALUE
,/**< InstanceId, PrimitiveID, etc. */
1967 PROGRAM_UNDEFINED
, /**< Invalid/TBD value */
1973 * If the register file is PROGRAM_SYSTEM_VALUE, the register index will be
1974 * one of these values.
1978 SYSTEM_VALUE_FRONT_FACE
, /**< Fragment shader only (not done yet) */
1979 SYSTEM_VALUE_VERTEX_ID
, /**< Vertex shader only */
1980 SYSTEM_VALUE_INSTANCE_ID
, /**< Vertex shader only */
1981 SYSTEM_VALUE_MAX
/**< Number of values */
1986 * The possible interpolation qualifiers that can be applied to a fragment
1987 * shader input in GLSL.
1989 * Note: INTERP_QUALIFIER_NONE must be 0 so that memsetting the
1990 * gl_fragment_program data structure to 0 causes the default behavior.
1992 enum glsl_interp_qualifier
1994 INTERP_QUALIFIER_NONE
= 0,
1995 INTERP_QUALIFIER_SMOOTH
,
1996 INTERP_QUALIFIER_FLAT
,
1997 INTERP_QUALIFIER_NOPERSPECTIVE
2002 * \brief Layout qualifiers for gl_FragDepth.
2004 * Extension AMD_conservative_depth allows gl_FragDepth to be redeclared with
2005 * a layout qualifier.
2007 * \see enum ir_depth_layout
2009 enum gl_frag_depth_layout
2011 FRAG_DEPTH_LAYOUT_NONE
, /**< No layout is specified. */
2012 FRAG_DEPTH_LAYOUT_ANY
,
2013 FRAG_DEPTH_LAYOUT_GREATER
,
2014 FRAG_DEPTH_LAYOUT_LESS
,
2015 FRAG_DEPTH_LAYOUT_UNCHANGED
2020 * Base class for any kind of program object
2025 GLubyte
*String
; /**< Null-terminated program text */
2027 GLenum Target
; /**< GL_VERTEX/FRAGMENT_PROGRAM_ARB */
2028 GLenum Format
; /**< String encoding format */
2030 struct prog_instruction
*Instructions
;
2032 GLbitfield64 InputsRead
; /**< Bitmask of which input regs are read */
2033 GLbitfield64 OutputsWritten
; /**< Bitmask of which output regs are written */
2034 GLbitfield SystemValuesRead
; /**< Bitmask of SYSTEM_VALUE_x inputs used */
2035 GLbitfield InputFlags
[MAX_PROGRAM_INPUTS
]; /**< PROG_PARAM_BIT_x flags */
2036 GLbitfield OutputFlags
[MAX_PROGRAM_OUTPUTS
]; /**< PROG_PARAM_BIT_x flags */
2037 GLbitfield TexturesUsed
[MAX_COMBINED_TEXTURE_IMAGE_UNITS
]; /**< TEXTURE_x_BIT bitmask */
2038 GLbitfield SamplersUsed
; /**< Bitfield of which samplers are used */
2039 GLbitfield ShadowSamplers
; /**< Texture units used for shadow sampling. */
2042 /** Named parameters, constants, etc. from program text */
2043 struct gl_program_parameter_list
*Parameters
;
2044 /** Numbered local parameters */
2045 GLfloat LocalParams
[MAX_PROGRAM_LOCAL_PARAMS
][4];
2047 /** Map from sampler unit to texture unit (set by glUniform1i()) */
2048 GLubyte SamplerUnits
[MAX_SAMPLERS
];
2050 /** Bitmask of which register files are read/written with indirect
2051 * addressing. Mask of (1 << PROGRAM_x) bits.
2053 GLbitfield IndirectRegisterFiles
;
2055 /** Logical counts */
2057 GLuint NumInstructions
;
2058 GLuint NumTemporaries
;
2059 GLuint NumParameters
;
2060 GLuint NumAttributes
;
2061 GLuint NumAddressRegs
;
2062 GLuint NumAluInstructions
;
2063 GLuint NumTexInstructions
;
2064 GLuint NumTexIndirections
;
2066 /** Native, actual h/w counts */
2068 GLuint NumNativeInstructions
;
2069 GLuint NumNativeTemporaries
;
2070 GLuint NumNativeParameters
;
2071 GLuint NumNativeAttributes
;
2072 GLuint NumNativeAddressRegs
;
2073 GLuint NumNativeAluInstructions
;
2074 GLuint NumNativeTexInstructions
;
2075 GLuint NumNativeTexIndirections
;
2080 /** Vertex program object */
2081 struct gl_vertex_program
2083 struct gl_program Base
; /**< base class */
2084 GLboolean IsPositionInvariant
;
2085 GLboolean UsesClipDistance
;
2089 /** Geometry program object */
2090 struct gl_geometry_program
2092 struct gl_program Base
; /**< base class */
2095 GLenum InputType
; /**< GL_POINTS, GL_LINES, GL_LINES_ADJACENCY_ARB,
2096 GL_TRIANGLES, or GL_TRIANGLES_ADJACENCY_ARB */
2097 GLenum OutputType
; /**< GL_POINTS, GL_LINE_STRIP or GL_TRIANGLE_STRIP */
2101 /** Fragment program object */
2102 struct gl_fragment_program
2104 struct gl_program Base
; /**< base class */
2105 GLboolean UsesKill
; /**< shader uses KIL instruction */
2106 GLboolean UsesDFdy
; /**< shader uses DDY instruction */
2107 GLboolean OriginUpperLeft
;
2108 GLboolean PixelCenterInteger
;
2109 enum gl_frag_depth_layout FragDepthLayout
;
2112 * GLSL interpolation qualifier associated with each fragment shader input.
2113 * For inputs that do not have an interpolation qualifier specified in
2114 * GLSL, the value is INTERP_QUALIFIER_NONE.
2116 enum glsl_interp_qualifier InterpQualifier
[FRAG_ATTRIB_MAX
];
2119 * Bitfield indicating, for each fragment shader input, 1 if that input
2120 * uses centroid interpolation, 0 otherwise. Unused inputs are 0.
2122 GLbitfield64 IsCentroid
;
2127 * State common to vertex and fragment programs.
2129 struct gl_program_state
2131 GLint ErrorPos
; /* GL_PROGRAM_ERROR_POSITION_ARB/NV */
2132 const char *ErrorString
; /* GL_PROGRAM_ERROR_STRING_ARB/NV */
2137 * Context state for vertex programs.
2139 struct gl_vertex_program_state
2141 GLboolean Enabled
; /**< User-set GL_VERTEX_PROGRAM_ARB/NV flag */
2142 GLboolean _Enabled
; /**< Enabled and _valid_ user program? */
2143 GLboolean PointSizeEnabled
; /**< GL_VERTEX_PROGRAM_POINT_SIZE_ARB/NV */
2144 GLboolean TwoSideEnabled
; /**< GL_VERTEX_PROGRAM_TWO_SIDE_ARB/NV */
2145 /** Computed two sided lighting for fixed function/programs. */
2146 GLboolean _TwoSideEnabled
;
2147 struct gl_vertex_program
*Current
; /**< User-bound vertex program */
2149 /** Currently enabled and valid vertex program (including internal
2150 * programs, user-defined vertex programs and GLSL vertex shaders).
2151 * This is the program we must use when rendering.
2153 struct gl_vertex_program
*_Current
;
2155 GLfloat Parameters
[MAX_PROGRAM_ENV_PARAMS
][4]; /**< Env params */
2157 /** Should fixed-function T&L be implemented with a vertex prog? */
2158 GLboolean _MaintainTnlProgram
;
2160 /** Program to emulate fixed-function T&L (see above) */
2161 struct gl_vertex_program
*_TnlProgram
;
2163 /** Cache of fixed-function programs */
2164 struct gl_program_cache
*Cache
;
2166 GLboolean _Overriden
;
2171 * Context state for geometry programs.
2173 struct gl_geometry_program_state
2175 GLboolean Enabled
; /**< GL_ARB_GEOMETRY_SHADER4 */
2176 GLboolean _Enabled
; /**< Enabled and valid program? */
2177 struct gl_geometry_program
*Current
; /**< user-bound geometry program */
2179 /** Currently enabled and valid program (including internal programs
2180 * and compiled shader programs).
2182 struct gl_geometry_program
*_Current
;
2184 GLfloat Parameters
[MAX_PROGRAM_ENV_PARAMS
][4]; /**< Env params */
2186 /** Cache of fixed-function programs */
2187 struct gl_program_cache
*Cache
;
2191 * Context state for fragment programs.
2193 struct gl_fragment_program_state
2195 GLboolean Enabled
; /**< User-set fragment program enable flag */
2196 GLboolean _Enabled
; /**< Enabled and _valid_ user program? */
2197 struct gl_fragment_program
*Current
; /**< User-bound fragment program */
2199 /** Currently enabled and valid fragment program (including internal
2200 * programs, user-defined fragment programs and GLSL fragment shaders).
2201 * This is the program we must use when rendering.
2203 struct gl_fragment_program
*_Current
;
2205 GLfloat Parameters
[MAX_PROGRAM_ENV_PARAMS
][4]; /**< Env params */
2207 /** Should fixed-function texturing be implemented with a fragment prog? */
2208 GLboolean _MaintainTexEnvProgram
;
2210 /** Program to emulate fixed-function texture env/combine (see above) */
2211 struct gl_fragment_program
*_TexEnvProgram
;
2213 /** Cache of fixed-function programs */
2214 struct gl_program_cache
*Cache
;
2219 * ATI_fragment_shader runtime state
2221 #define ATI_FS_INPUT_PRIMARY 0
2222 #define ATI_FS_INPUT_SECONDARY 1
2224 struct atifs_instruction
;
2225 struct atifs_setupinst
;
2228 * ATI fragment shader
2230 struct ati_fragment_shader
2234 struct atifs_instruction
*Instructions
[2];
2235 struct atifs_setupinst
*SetupInst
[2];
2236 GLfloat Constants
[8][4];
2237 GLbitfield LocalConstDef
; /**< Indicates which constants have been set */
2238 GLubyte numArithInstr
[2];
2239 GLubyte regsAssigned
[2];
2240 GLubyte NumPasses
; /**< 1 or 2 */
2242 GLubyte last_optype
;
2243 GLboolean interpinp1
;
2249 * Context state for GL_ATI_fragment_shader
2251 struct gl_ati_fragment_shader_state
2254 GLboolean _Enabled
; /**< enabled and valid shader? */
2255 GLboolean Compiling
;
2256 GLfloat GlobalConstants
[8][4];
2257 struct ati_fragment_shader
*Current
;
2261 /** Set by #pragma directives */
2262 struct gl_sl_pragmas
2264 GLboolean IgnoreOptimize
; /**< ignore #pragma optimize(on/off) ? */
2265 GLboolean IgnoreDebug
; /**< ignore #pragma debug(on/off) ? */
2266 GLboolean Optimize
; /**< defaults on */
2267 GLboolean Debug
; /**< defaults off */
2272 * A GLSL vertex or fragment shader object.
2276 GLenum Type
; /**< GL_FRAGMENT_SHADER || GL_VERTEX_SHADER || GL_GEOMETRY_SHADER_ARB (first field!) */
2277 GLuint Name
; /**< AKA the handle */
2278 GLint RefCount
; /**< Reference count */
2279 GLboolean DeletePending
;
2280 GLboolean CompileStatus
;
2281 const GLchar
*Source
; /**< Source code string */
2282 GLuint SourceChecksum
; /**< for debug/logging purposes */
2283 struct gl_program
*Program
; /**< Post-compile assembly code */
2285 struct gl_sl_pragmas Pragmas
;
2287 unsigned Version
; /**< GLSL version used for linking */
2288 GLboolean IsES
; /**< True if this shader uses GLSL ES */
2291 * \name Sampler tracking
2293 * \note Each of these fields is only set post-linking.
2296 unsigned num_samplers
; /**< Number of samplers used by this shader. */
2297 GLbitfield active_samplers
; /**< Bitfield of which samplers are used */
2298 GLbitfield shadow_samplers
; /**< Samplers used for shadow sampling. */
2302 * Number of uniform components used by this shader.
2304 * This field is only set post-linking.
2306 unsigned num_uniform_components
;
2309 * This shader's uniform block information.
2311 * The offsets of the variables are assigned only for shaders in a program's
2314 struct gl_uniform_block
*UniformBlocks
;
2315 unsigned NumUniformBlocks
;
2317 struct exec_list
*ir
;
2318 struct glsl_symbol_table
*symbols
;
2320 /** Shaders containing built-in functions that are used for linking. */
2321 struct gl_shader
*builtins_to_link
[16];
2322 unsigned num_builtins_to_link
;
2327 * Shader stages. Note that these will become 5 with tessellation.
2328 * These MUST have the same values as gallium's PIPE_SHADER_*
2332 MESA_SHADER_VERTEX
= 0,
2333 MESA_SHADER_FRAGMENT
= 1,
2334 MESA_SHADER_GEOMETRY
= 2,
2335 MESA_SHADER_TYPES
= 3
2338 struct gl_uniform_buffer_variable
2343 * Name of the uniform as seen by glGetUniformIndices.
2345 * glGetUniformIndices requires that the block instance index \b not be
2346 * present in the name of queried uniforms.
2349 * \c gl_uniform_buffer_variable::IndexName and
2350 * \c gl_uniform_buffer_variable::Name may point to identical storage.
2354 const struct glsl_type
*Type
;
2355 unsigned int Offset
;
2359 enum gl_uniform_block_packing
{
2365 struct gl_uniform_block
2367 /** Declared name of the uniform block */
2370 /** Array of supplemental information about UBO ir_variables. */
2371 struct gl_uniform_buffer_variable
*Uniforms
;
2375 * Index (GL_UNIFORM_BLOCK_BINDING) into ctx->UniformBufferBindings[] to use
2376 * with glBindBufferBase to bind a buffer object to this uniform block. When
2377 * updated in the program, _NEW_BUFFER_OBJECT will be set.
2382 * Minimum size of a buffer object to back this uniform buffer
2383 * (GL_UNIFORM_BLOCK_DATA_SIZE).
2385 GLuint UniformBufferSize
;
2388 * Layout specified in the shader
2390 * This isn't accessible through the API, but it is used while
2391 * cross-validating uniform blocks.
2393 enum gl_uniform_block_packing _Packing
;
2397 * A GLSL program object.
2398 * Basically a linked collection of vertex and fragment shaders.
2400 struct gl_shader_program
2402 GLenum Type
; /**< Always GL_SHADER_PROGRAM (internal token) */
2403 GLuint Name
; /**< aka handle or ID */
2404 GLint RefCount
; /**< Reference count */
2405 GLboolean DeletePending
;
2408 * Is the application intending to glGetProgramBinary this program?
2410 GLboolean BinaryRetreivableHint
;
2413 * Flags that the linker should not reject the program if it lacks
2414 * a vertex or fragment shader. GLES2 doesn't allow separate
2415 * shader objects, and would reject them. However, we internally
2416 * build separate shader objects for fixed function programs, which
2417 * we use for drivers/common/meta.c and for handling
2418 * _mesa_update_state with no program bound (for example in
2421 GLboolean InternalSeparateShader
;
2423 GLuint NumShaders
; /**< number of attached shaders */
2424 struct gl_shader
**Shaders
; /**< List of attached the shaders */
2427 * User-defined attribute bindings
2429 * These are set via \c glBindAttribLocation and are used to direct the
2430 * GLSL linker. These are \b not the values used in the compiled shader,
2431 * and they are \b not the values returned by \c glGetAttribLocation.
2433 struct string_to_uint_map
*AttributeBindings
;
2436 * User-defined fragment data bindings
2438 * These are set via \c glBindFragDataLocation and are used to direct the
2439 * GLSL linker. These are \b not the values used in the compiled shader,
2440 * and they are \b not the values returned by \c glGetFragDataLocation.
2442 struct string_to_uint_map
*FragDataBindings
;
2443 struct string_to_uint_map
*FragDataIndexBindings
;
2446 * Transform feedback varyings last specified by
2447 * glTransformFeedbackVaryings().
2449 * For the current set of transform feeedback varyings used for transform
2450 * feedback output, see LinkedTransformFeedback.
2455 GLchar
**VaryingNames
; /**< Array [NumVarying] of char * */
2456 } TransformFeedback
;
2458 /** Post-link transform feedback info. */
2459 struct gl_transform_feedback_info LinkedTransformFeedback
;
2461 /** Post-link gl_FragDepth layout for ARB_conservative_depth. */
2462 enum gl_frag_depth_layout FragDepthLayout
;
2464 /** Geometry shader state - copied into gl_geometry_program at link time */
2467 GLenum InputType
; /**< GL_POINTS, GL_LINES, GL_LINES_ADJACENCY_ARB,
2468 GL_TRIANGLES, or GL_TRIANGLES_ADJACENCY_ARB */
2469 GLenum OutputType
; /**< GL_POINTS, GL_LINE_STRIP or GL_TRIANGLE_STRIP */
2472 /** Vertex shader state - copied into gl_vertex_program at link time */
2474 GLboolean UsesClipDistance
; /**< True if gl_ClipDistance is written to. */
2475 GLuint ClipDistanceArraySize
; /**< Size of the gl_ClipDistance array, or
2476 0 if not present. */
2479 /* post-link info: */
2480 unsigned NumUserUniformStorage
;
2481 struct gl_uniform_storage
*UniformStorage
;
2483 struct gl_uniform_block
*UniformBlocks
;
2484 unsigned NumUniformBlocks
;
2487 * Indices into the _LinkedShaders's UniformBlocks[] array for each stage
2488 * they're used in, or -1.
2490 * This is used to maintain the Binding values of the stage's UniformBlocks[]
2491 * and to answer the GL_UNIFORM_BLOCK_REFERENCED_BY_*_SHADER queries.
2493 int *UniformBlockStageIndex
[MESA_SHADER_TYPES
];
2496 * Map of active uniform names to locations
2498 * Maps any active uniform that is not an array element to a location.
2499 * Each active uniform, including individual structure members will appear
2500 * in this map. This roughly corresponds to the set of names that would be
2501 * enumerated by \c glGetActiveUniform.
2503 struct string_to_uint_map
*UniformHash
;
2506 * Map from sampler unit to texture unit (set by glUniform1i())
2508 * A sampler unit is associated with each sampler uniform by the linker.
2509 * The sampler unit associated with each uniform is stored in the
2510 * \c gl_uniform_storage::sampler field.
2512 GLubyte SamplerUnits
[MAX_SAMPLERS
];
2513 /** Which texture target is being sampled (TEXTURE_1D/2D/3D/etc_INDEX) */
2514 gl_texture_index SamplerTargets
[MAX_SAMPLERS
];
2516 GLboolean LinkStatus
; /**< GL_LINK_STATUS */
2517 GLboolean Validated
;
2518 GLboolean _Used
; /**< Ever used for drawing? */
2521 unsigned Version
; /**< GLSL version used for linking */
2522 GLboolean IsES
; /**< True if this program uses GLSL ES */
2525 * Per-stage shaders resulting from the first stage of linking.
2527 * Set of linked shaders for this program. The array is accessed using the
2528 * \c MESA_SHADER_* defines. Entries for non-existent stages will be
2531 struct gl_shader
*_LinkedShaders
[MESA_SHADER_TYPES
];
2535 #define GLSL_DUMP 0x1 /**< Dump shaders to stdout */
2536 #define GLSL_LOG 0x2 /**< Write shaders to files */
2537 #define GLSL_OPT 0x4 /**< Force optimizations (override pragmas) */
2538 #define GLSL_NO_OPT 0x8 /**< Force no optimizations (override pragmas) */
2539 #define GLSL_UNIFORMS 0x10 /**< Print glUniform calls */
2540 #define GLSL_NOP_VERT 0x20 /**< Force no-op vertex shaders */
2541 #define GLSL_NOP_FRAG 0x40 /**< Force no-op fragment shaders */
2542 #define GLSL_USE_PROG 0x80 /**< Log glUseProgram calls */
2543 #define GLSL_REPORT_ERRORS 0x100 /**< Print compilation errors */
2547 * Context state for GLSL vertex/fragment shaders.
2549 struct gl_shader_state
2552 * Programs used for rendering
2554 * There is a separate program set for each shader stage. If
2555 * GL_EXT_separate_shader_objects is not supported, each of these must point
2556 * to \c NULL or to the same program.
2558 struct gl_shader_program
*CurrentVertexProgram
;
2559 struct gl_shader_program
*CurrentGeometryProgram
;
2560 struct gl_shader_program
*CurrentFragmentProgram
;
2562 struct gl_shader_program
*_CurrentFragmentProgram
;
2565 * Program used by glUniform calls.
2567 * Explicitly set by \c glUseProgram and \c glActiveProgramEXT.
2569 struct gl_shader_program
*ActiveProgram
;
2571 GLbitfield Flags
; /**< Mask of GLSL_x flags */
2576 * Compiler options for a single GLSL shaders type
2578 struct gl_shader_compiler_options
2580 /** Driver-selectable options: */
2581 GLboolean EmitCondCodes
; /**< Use condition codes? */
2582 GLboolean EmitNoLoops
;
2583 GLboolean EmitNoFunctions
;
2584 GLboolean EmitNoCont
; /**< Emit CONT opcode? */
2585 GLboolean EmitNoMainReturn
; /**< Emit CONT/RET opcodes? */
2586 GLboolean EmitNoNoise
; /**< Emit NOISE opcodes? */
2587 GLboolean EmitNoPow
; /**< Emit POW opcodes? */
2588 GLboolean LowerClipDistance
; /**< Lower gl_ClipDistance from float[8] to vec4[2]? */
2591 * \name Forms of indirect addressing the driver cannot do.
2594 GLboolean EmitNoIndirectInput
; /**< No indirect addressing of inputs */
2595 GLboolean EmitNoIndirectOutput
; /**< No indirect addressing of outputs */
2596 GLboolean EmitNoIndirectTemp
; /**< No indirect addressing of temps */
2597 GLboolean EmitNoIndirectUniform
; /**< No indirect addressing of constants */
2600 GLuint MaxIfDepth
; /**< Maximum nested IF blocks */
2601 GLuint MaxUnrollIterations
;
2603 struct gl_sl_pragmas DefaultPragmas
; /**< Default #pragma settings */
2608 * Occlusion/timer query object.
2610 struct gl_query_object
2612 GLenum Target
; /**< The query target, when active */
2613 GLuint Id
; /**< hash table ID/name */
2614 GLuint64EXT Result
; /**< the counter */
2615 GLboolean Active
; /**< inside Begin/EndQuery */
2616 GLboolean Ready
; /**< result is ready? */
2617 GLboolean EverBound
;/**< has query object ever been bound */
2622 * Context state for query objects.
2624 struct gl_query_state
2626 struct _mesa_HashTable
*QueryObjects
;
2627 struct gl_query_object
*CurrentOcclusionObject
; /* GL_ARB_occlusion_query */
2628 struct gl_query_object
*CurrentTimerObject
; /* GL_EXT_timer_query */
2630 /** GL_NV_conditional_render */
2631 struct gl_query_object
*CondRenderQuery
;
2633 /** GL_EXT_transform_feedback */
2634 struct gl_query_object
*PrimitivesGenerated
;
2635 struct gl_query_object
*PrimitivesWritten
;
2637 /** GL_ARB_timer_query */
2638 struct gl_query_object
*TimeElapsed
;
2640 GLenum CondRenderMode
;
2644 /** Sync object state */
2645 struct gl_sync_object
2647 GLenum Type
; /**< GL_SYNC_FENCE */
2648 GLuint Name
; /**< Fence name */
2649 GLint RefCount
; /**< Reference count */
2650 GLboolean DeletePending
; /**< Object was deleted while there were still
2651 * live references (e.g., sync not yet finished)
2653 GLenum SyncCondition
;
2654 GLbitfield Flags
; /**< Flags passed to glFenceSync */
2655 GLuint StatusFlag
:1; /**< Has the sync object been signaled? */
2660 * State which can be shared by multiple contexts:
2662 struct gl_shared_state
2664 _glthread_Mutex Mutex
; /**< for thread safety */
2665 GLint RefCount
; /**< Reference count */
2666 struct _mesa_HashTable
*DisplayList
; /**< Display lists hash table */
2667 struct _mesa_HashTable
*TexObjects
; /**< Texture objects hash table */
2669 /** Default texture objects (shared by all texture units) */
2670 struct gl_texture_object
*DefaultTex
[NUM_TEXTURE_TARGETS
];
2672 /** Fallback texture used when a bound texture is incomplete */
2673 struct gl_texture_object
*FallbackTex
[NUM_TEXTURE_TARGETS
];
2676 * \name Thread safety and statechange notification for texture
2679 * \todo Improve the granularity of locking.
2682 _glthread_Mutex TexMutex
; /**< texobj thread safety */
2683 GLuint TextureStateStamp
; /**< state notification for shared tex */
2686 /** Default buffer object for vertex arrays that aren't in VBOs */
2687 struct gl_buffer_object
*NullBufferObj
;
2690 * \name Vertex/geometry/fragment programs
2693 struct _mesa_HashTable
*Programs
; /**< All vertex/fragment programs */
2694 struct gl_vertex_program
*DefaultVertexProgram
;
2695 struct gl_fragment_program
*DefaultFragmentProgram
;
2696 struct gl_geometry_program
*DefaultGeometryProgram
;
2699 /* GL_ATI_fragment_shader */
2700 struct _mesa_HashTable
*ATIShaders
;
2701 struct ati_fragment_shader
*DefaultFragmentShader
;
2703 struct _mesa_HashTable
*BufferObjects
;
2705 /** Table of both gl_shader and gl_shader_program objects */
2706 struct _mesa_HashTable
*ShaderObjects
;
2708 /* GL_EXT_framebuffer_object */
2709 struct _mesa_HashTable
*RenderBuffers
;
2710 struct _mesa_HashTable
*FrameBuffers
;
2713 struct set
*SyncObjects
;
2715 /** GL_ARB_sampler_objects */
2716 struct _mesa_HashTable
*SamplerObjects
;
2722 * Renderbuffers represent drawing surfaces such as color, depth and/or
2723 * stencil. A framebuffer object has a set of renderbuffers.
2724 * Drivers will typically derive subclasses of this type.
2726 struct gl_renderbuffer
2728 _glthread_Mutex Mutex
; /**< for thread safety */
2729 GLuint ClassID
; /**< Useful for drivers */
2732 GLuint Width
, Height
;
2733 GLboolean Purgeable
; /**< Is the buffer purgeable under memory pressure? */
2734 GLboolean AttachedAnytime
; /**< TRUE if it was attached to a framebuffer */
2736 GLenum InternalFormat
; /**< The user-specified format */
2737 GLenum _BaseFormat
; /**< Either GL_RGB, GL_RGBA, GL_DEPTH_COMPONENT or
2738 GL_STENCIL_INDEX. */
2739 gl_format Format
; /**< The actual renderbuffer memory format */
2741 /** Delete this renderbuffer */
2742 void (*Delete
)(struct gl_context
*ctx
, struct gl_renderbuffer
*rb
);
2744 /** Allocate new storage for this renderbuffer */
2745 GLboolean (*AllocStorage
)(struct gl_context
*ctx
,
2746 struct gl_renderbuffer
*rb
,
2747 GLenum internalFormat
,
2748 GLuint width
, GLuint height
);
2753 * A renderbuffer attachment points to either a texture object (and specifies
2754 * a mipmap level, cube face or 3D texture slice) or points to a renderbuffer.
2756 struct gl_renderbuffer_attachment
2758 GLenum Type
; /**< \c GL_NONE or \c GL_TEXTURE or \c GL_RENDERBUFFER_EXT */
2762 * If \c Type is \c GL_RENDERBUFFER_EXT, this stores a pointer to the
2763 * application supplied renderbuffer object.
2765 struct gl_renderbuffer
*Renderbuffer
;
2768 * If \c Type is \c GL_TEXTURE, this stores a pointer to the application
2769 * supplied texture object.
2771 struct gl_texture_object
*Texture
;
2772 GLuint TextureLevel
; /**< Attached mipmap level. */
2773 GLuint CubeMapFace
; /**< 0 .. 5, for cube map textures. */
2774 GLuint Zoffset
; /**< Slice for 3D textures, or layer for both 1D
2775 * and 2D array textures */
2780 * A framebuffer is a collection of renderbuffers (color, depth, stencil, etc).
2781 * In C++ terms, think of this as a base class from which device drivers
2782 * will make derived classes.
2784 struct gl_framebuffer
2786 _glthread_Mutex Mutex
; /**< for thread safety */
2788 * If zero, this is a window system framebuffer. If non-zero, this
2789 * is a FBO framebuffer; note that for some devices (i.e. those with
2790 * a natural pixel coordinate system for FBOs that differs from the
2791 * OpenGL/Mesa coordinate system), this means that the viewport,
2792 * polygon face orientation, and polygon stipple will have to be inverted.
2797 GLboolean DeletePending
;
2800 * The framebuffer's visual. Immutable if this is a window system buffer.
2801 * Computed from attachments if user-made FBO.
2803 struct gl_config Visual
;
2805 GLboolean Initialized
;
2807 GLuint Width
, Height
; /**< size of frame buffer in pixels */
2809 /** \name Drawing bounds (Intersection of buffer size and scissor box) */
2811 GLint _Xmin
, _Xmax
; /**< inclusive */
2812 GLint _Ymin
, _Ymax
; /**< exclusive */
2815 /** \name Derived Z buffer stuff */
2817 GLuint _DepthMax
; /**< Max depth buffer value */
2818 GLfloat _DepthMaxF
; /**< Float max depth buffer value */
2819 GLfloat _MRD
; /**< minimum resolvable difference in Z values */
2822 /** One of the GL_FRAMEBUFFER_(IN)COMPLETE_* tokens */
2825 /** Integer color values */
2826 GLboolean _IntegerColor
;
2828 /** Array of all renderbuffer attachments, indexed by BUFFER_* tokens. */
2829 struct gl_renderbuffer_attachment Attachment
[BUFFER_COUNT
];
2831 /* In unextended OpenGL these vars are part of the GL_COLOR_BUFFER
2832 * attribute group and GL_PIXEL attribute group, respectively.
2834 GLenum ColorDrawBuffer
[MAX_DRAW_BUFFERS
];
2835 GLenum ColorReadBuffer
;
2837 /** Computed from ColorDraw/ReadBuffer above */
2838 GLuint _NumColorDrawBuffers
;
2839 GLint _ColorDrawBufferIndexes
[MAX_DRAW_BUFFERS
]; /**< BUFFER_x or -1 */
2840 GLint _ColorReadBufferIndex
; /* -1 = None */
2841 struct gl_renderbuffer
*_ColorDrawBuffers
[MAX_DRAW_BUFFERS
];
2842 struct gl_renderbuffer
*_ColorReadBuffer
;
2844 /** Delete this framebuffer */
2845 void (*Delete
)(struct gl_framebuffer
*fb
);
2850 * Precision info for shader datatypes. See glGetShaderPrecisionFormat().
2854 GLushort RangeMin
; /**< min value exponent */
2855 GLushort RangeMax
; /**< max value exponent */
2856 GLushort Precision
; /**< number of mantissa bits */
2861 * Limits for vertex, geometry and fragment programs/shaders.
2863 struct gl_program_constants
2865 /* logical limits */
2866 GLuint MaxInstructions
;
2867 GLuint MaxAluInstructions
;
2868 GLuint MaxTexInstructions
;
2869 GLuint MaxTexIndirections
;
2872 GLuint MaxAddressRegs
;
2873 GLuint MaxAddressOffset
; /**< [-MaxAddressOffset, MaxAddressOffset-1] */
2874 GLuint MaxParameters
;
2875 GLuint MaxLocalParams
;
2876 GLuint MaxEnvParams
;
2877 /* native/hardware limits */
2878 GLuint MaxNativeInstructions
;
2879 GLuint MaxNativeAluInstructions
;
2880 GLuint MaxNativeTexInstructions
;
2881 GLuint MaxNativeTexIndirections
;
2882 GLuint MaxNativeAttribs
;
2883 GLuint MaxNativeTemps
;
2884 GLuint MaxNativeAddressRegs
;
2885 GLuint MaxNativeParameters
;
2887 GLuint MaxUniformComponents
; /**< Usually == MaxParameters * 4 */
2888 /* ES 2.0 and GL_ARB_ES2_compatibility */
2889 struct gl_precision LowFloat
, MediumFloat
, HighFloat
;
2890 struct gl_precision LowInt
, MediumInt
, HighInt
;
2891 /* GL_ARB_uniform_buffer_object */
2892 GLuint MaxUniformBlocks
;
2893 GLuint MaxCombinedUniformComponents
;
2898 * Constants which may be overridden by device driver during context creation
2899 * but are never changed after that.
2903 GLuint MaxTextureMbytes
; /**< Max memory per image, in MB */
2904 GLuint MaxTextureLevels
; /**< Max mipmap levels. */
2905 GLuint Max3DTextureLevels
; /**< Max mipmap levels for 3D textures */
2906 GLuint MaxCubeTextureLevels
; /**< Max mipmap levels for cube textures */
2907 GLuint MaxArrayTextureLayers
; /**< Max layers in array textures */
2908 GLuint MaxTextureRectSize
; /**< Max rectangle texture size, in pixes */
2909 GLuint MaxTextureCoordUnits
;
2910 GLuint MaxTextureImageUnits
;
2911 GLuint MaxVertexTextureImageUnits
;
2912 GLuint MaxCombinedTextureImageUnits
;
2913 GLuint MaxGeometryTextureImageUnits
;
2914 GLuint MaxTextureUnits
; /**< = MIN(CoordUnits, ImageUnits) */
2915 GLfloat MaxTextureMaxAnisotropy
; /**< GL_EXT_texture_filter_anisotropic */
2916 GLfloat MaxTextureLodBias
; /**< GL_EXT_texture_lod_bias */
2917 GLuint MaxTextureBufferSize
; /**< GL_ARB_texture_buffer_object */
2919 GLuint TextureBufferOffsetAlignment
; /**< GL_ARB_texture_buffer_range */
2921 GLuint MaxArrayLockSize
;
2925 GLfloat MinPointSize
, MaxPointSize
; /**< aliased */
2926 GLfloat MinPointSizeAA
, MaxPointSizeAA
; /**< antialiased */
2927 GLfloat PointSizeGranularity
;
2928 GLfloat MinLineWidth
, MaxLineWidth
; /**< aliased */
2929 GLfloat MinLineWidthAA
, MaxLineWidthAA
; /**< antialiased */
2930 GLfloat LineWidthGranularity
;
2932 GLuint MaxColorTableSize
;
2934 GLuint MaxClipPlanes
;
2936 GLfloat MaxShininess
; /**< GL_NV_light_max_exponent */
2937 GLfloat MaxSpotExponent
; /**< GL_NV_light_max_exponent */
2939 GLuint MaxViewportWidth
, MaxViewportHeight
;
2941 struct gl_program_constants VertexProgram
; /**< GL_ARB_vertex_program */
2942 struct gl_program_constants FragmentProgram
; /**< GL_ARB_fragment_program */
2943 struct gl_program_constants GeometryProgram
; /**< GL_ARB_geometry_shader4 */
2944 GLuint MaxProgramMatrices
;
2945 GLuint MaxProgramMatrixStackDepth
;
2948 GLuint SamplesPassed
;
2951 GLuint PrimitivesGenerated
;
2952 GLuint PrimitivesWritten
;
2955 /** vertex array / buffer object bounds checking */
2956 GLboolean CheckArrayBounds
;
2958 GLuint MaxDrawBuffers
; /**< GL_ARB_draw_buffers */
2960 GLuint MaxColorAttachments
; /**< GL_EXT_framebuffer_object */
2961 GLuint MaxRenderbufferSize
; /**< GL_EXT_framebuffer_object */
2962 GLuint MaxSamples
; /**< GL_ARB_framebuffer_object */
2964 /** Number of varying vectors between vertex and fragment shaders */
2966 GLuint MaxVertexVaryingComponents
; /**< Between vert and geom shader */
2967 GLuint MaxGeometryVaryingComponents
; /**< Between geom and frag shader */
2970 * GL_ARB_uniform_buffer_object
2972 GLuint MaxCombinedUniformBlocks
;
2973 GLuint MaxUniformBufferBindings
;
2974 GLuint MaxUniformBlockSize
;
2975 GLuint UniformBufferOffsetAlignment
;
2978 /** GL_ARB_geometry_shader4 */
2979 GLuint MaxGeometryOutputVertices
;
2980 GLuint MaxGeometryTotalOutputComponents
;
2982 GLuint GLSLVersion
; /**< GLSL version supported (ex: 120 = 1.20) */
2985 * Changes default GLSL extension behavior from "error" to "warn". It's out
2986 * of spec, but it can make some apps work that otherwise wouldn't.
2988 GLboolean ForceGLSLExtensionsWarn
;
2991 * Does the driver support real 32-bit integers? (Otherwise, integers are
2992 * simulated via floats.)
2994 GLboolean NativeIntegers
;
2997 * If the driver supports real 32-bit integers, what integer value should be
2998 * used for boolean true in uniform uploads? (Usually 1 or ~0.)
3000 GLuint UniformBooleanTrue
;
3002 /** Which texture units support GL_ATI_envmap_bumpmap as targets */
3003 GLbitfield SupportedBumpUnits
;
3006 * Maximum amount of time, measured in nanseconds, that the server can wait.
3008 GLuint64 MaxServerWaitTimeout
;
3010 /** GL_EXT_provoking_vertex */
3011 GLboolean QuadsFollowProvokingVertexConvention
;
3013 /** OpenGL version 3.0 */
3014 GLbitfield ContextFlags
; /**< Ex: GL_CONTEXT_FLAG_FORWARD_COMPATIBLE_BIT */
3016 /** OpenGL version 3.2 */
3017 GLbitfield ProfileMask
; /**< Mask of CONTEXT_x_PROFILE_BIT */
3019 /** GL_EXT_transform_feedback */
3020 GLuint MaxTransformFeedbackBuffers
;
3021 GLuint MaxTransformFeedbackSeparateComponents
;
3022 GLuint MaxTransformFeedbackInterleavedComponents
;
3023 GLuint MaxVertexStreams
;
3025 /** GL_EXT_gpu_shader4 */
3026 GLint MinProgramTexelOffset
, MaxProgramTexelOffset
;
3028 /* GL_ARB_robustness */
3029 GLenum ResetStrategy
;
3031 /* GL_ARB_blend_func_extended */
3032 GLuint MaxDualSourceDrawBuffers
;
3035 * Whether the implementation strips out and ignores texture borders.
3037 * Many GPU hardware implementations don't support rendering with texture
3038 * borders and mipmapped textures. (Note: not static border color, but the
3039 * old 1-pixel border around each edge). Implementations then have to do
3040 * slow fallbacks to be correct, or just ignore the border and be fast but
3041 * wrong. Setting the flag strips the border off of TexImage calls,
3042 * providing "fast but wrong" at significantly reduced driver complexity.
3044 * Texture borders are deprecated in GL 3.0.
3046 GLboolean StripTextureBorder
;
3049 * For drivers which can do a better job at eliminating unused varyings
3050 * and uniforms than the GLSL compiler.
3052 * XXX Remove these as soon as a better solution is available.
3054 GLboolean GLSLSkipStrictMaxVaryingLimitCheck
;
3055 GLboolean GLSLSkipStrictMaxUniformLimitCheck
;
3058 * Force software support for primitive restart in the VBO module.
3060 GLboolean PrimitiveRestartInSoftware
;
3062 /** GL_ARB_map_buffer_alignment */
3063 GLuint MinMapBufferAlignment
;
3066 * Disable varying packing. This is out of spec, but potentially useful
3067 * for older platforms that supports a limited number of texture
3068 * indirections--on these platforms, unpacking the varyings in the fragment
3069 * shader increases the number of texture indirections by 1, which might
3070 * make some shaders not executable at all.
3072 * Drivers that support transform feedback must set this value to GL_FALSE.
3074 GLboolean DisableVaryingPacking
;
3077 * Maximum value supported for an index in DrawElements and friends.
3079 * This must be at least (1ull<<24)-1. The default value is
3082 * \since ES 3.0 or GL_ARB_ES3_compatibility
3083 * \sa _mesa_init_constants
3085 GLuint64 MaxElementIndex
;
3088 * Disable interpretation of line continuations (lines ending with a
3089 * backslash character ('\') in GLSL source.
3091 GLboolean DisableGLSLLineContinuations
;
3093 /** GL_ARB_texture_multisample */
3094 GLint MaxColorTextureSamples
;
3095 GLint MaxDepthTextureSamples
;
3096 GLint MaxIntegerSamples
;
3101 * Enable flag for each OpenGL extension. Different device drivers will
3102 * enable different extensions at runtime.
3104 struct gl_extensions
3106 GLboolean dummy
; /* don't remove this! */
3107 GLboolean dummy_true
; /* Set true by _mesa_init_extensions(). */
3108 GLboolean dummy_false
; /* Set false by _mesa_init_extensions(). */
3109 GLboolean ANGLE_texture_compression_dxt
;
3110 GLboolean ARB_ES2_compatibility
;
3111 GLboolean ARB_ES3_compatibility
;
3112 GLboolean ARB_base_instance
;
3113 GLboolean ARB_blend_func_extended
;
3114 GLboolean ARB_color_buffer_float
;
3115 GLboolean ARB_conservative_depth
;
3116 GLboolean ARB_depth_buffer_float
;
3117 GLboolean ARB_depth_clamp
;
3118 GLboolean ARB_depth_texture
;
3119 GLboolean ARB_draw_buffers_blend
;
3120 GLboolean ARB_draw_elements_base_vertex
;
3121 GLboolean ARB_draw_instanced
;
3122 GLboolean ARB_fragment_coord_conventions
;
3123 GLboolean ARB_fragment_program
;
3124 GLboolean ARB_fragment_program_shadow
;
3125 GLboolean ARB_fragment_shader
;
3126 GLboolean ARB_framebuffer_object
;
3127 GLboolean ARB_explicit_attrib_location
;
3128 GLboolean ARB_geometry_shader4
;
3129 GLboolean ARB_half_float_pixel
;
3130 GLboolean ARB_half_float_vertex
;
3131 GLboolean ARB_instanced_arrays
;
3132 GLboolean ARB_internalformat_query
;
3133 GLboolean ARB_map_buffer_alignment
;
3134 GLboolean ARB_map_buffer_range
;
3135 GLboolean ARB_occlusion_query
;
3136 GLboolean ARB_occlusion_query2
;
3137 GLboolean ARB_point_sprite
;
3138 GLboolean ARB_seamless_cube_map
;
3139 GLboolean ARB_shader_bit_encoding
;
3140 GLboolean ARB_shader_objects
;
3141 GLboolean ARB_shader_stencil_export
;
3142 GLboolean ARB_shader_texture_lod
;
3143 GLboolean ARB_shading_language_100
;
3144 GLboolean ARB_shading_language_packing
;
3145 GLboolean ARB_shadow
;
3147 GLboolean ARB_texture_border_clamp
;
3148 GLboolean ARB_texture_buffer_object
;
3149 GLboolean ARB_texture_buffer_object_rgb32
;
3150 GLboolean ARB_texture_buffer_range
;
3151 GLboolean ARB_texture_compression_rgtc
;
3152 GLboolean ARB_texture_cube_map
;
3153 GLboolean ARB_texture_cube_map_array
;
3154 GLboolean ARB_texture_env_combine
;
3155 GLboolean ARB_texture_env_crossbar
;
3156 GLboolean ARB_texture_env_dot3
;
3157 GLboolean ARB_texture_float
;
3158 GLboolean ARB_texture_multisample
;
3159 GLboolean ARB_texture_non_power_of_two
;
3160 GLboolean ARB_texture_rg
;
3161 GLboolean ARB_texture_rgb10_a2ui
;
3162 GLboolean ARB_texture_storage
;
3163 GLboolean ARB_timer_query
;
3164 GLboolean ARB_transform_feedback2
;
3165 GLboolean ARB_transform_feedback3
;
3166 GLboolean ARB_transform_feedback_instanced
;
3167 GLboolean ARB_uniform_buffer_object
;
3168 GLboolean ARB_vertex_program
;
3169 GLboolean ARB_vertex_shader
;
3170 GLboolean ARB_vertex_type_2_10_10_10_rev
;
3171 GLboolean EXT_blend_color
;
3172 GLboolean EXT_blend_equation_separate
;
3173 GLboolean EXT_blend_func_separate
;
3174 GLboolean EXT_blend_minmax
;
3175 GLboolean EXT_clip_volume_hint
;
3176 GLboolean EXT_depth_bounds_test
;
3177 GLboolean EXT_draw_buffers2
;
3178 GLboolean EXT_fog_coord
;
3179 GLboolean EXT_framebuffer_blit
;
3180 GLboolean EXT_framebuffer_multisample
;
3181 GLboolean EXT_framebuffer_object
;
3182 GLboolean EXT_framebuffer_sRGB
;
3183 GLboolean EXT_gpu_program_parameters
;
3184 GLboolean EXT_gpu_shader4
;
3185 GLboolean EXT_packed_depth_stencil
;
3186 GLboolean EXT_packed_float
;
3187 GLboolean EXT_pixel_buffer_object
;
3188 GLboolean EXT_point_parameters
;
3189 GLboolean EXT_provoking_vertex
;
3190 GLboolean EXT_shadow_funcs
;
3191 GLboolean EXT_secondary_color
;
3192 GLboolean EXT_separate_shader_objects
;
3193 GLboolean EXT_stencil_two_side
;
3194 GLboolean EXT_texture3D
;
3195 GLboolean EXT_texture_array
;
3196 GLboolean EXT_texture_compression_latc
;
3197 GLboolean EXT_texture_compression_s3tc
;
3198 GLboolean EXT_texture_env_dot3
;
3199 GLboolean EXT_texture_filter_anisotropic
;
3200 GLboolean EXT_texture_integer
;
3201 GLboolean EXT_texture_mirror_clamp
;
3202 GLboolean EXT_texture_shared_exponent
;
3203 GLboolean EXT_texture_snorm
;
3204 GLboolean EXT_texture_sRGB
;
3205 GLboolean EXT_texture_sRGB_decode
;
3206 GLboolean EXT_texture_swizzle
;
3207 GLboolean EXT_transform_feedback
;
3208 GLboolean EXT_timer_query
;
3209 GLboolean EXT_vertex_array_bgra
;
3210 GLboolean OES_standard_derivatives
;
3211 /* vendor extensions */
3212 GLboolean AMD_seamless_cubemap_per_texture
;
3213 GLboolean APPLE_object_purgeable
;
3214 GLboolean ATI_envmap_bumpmap
;
3215 GLboolean ATI_texture_compression_3dc
;
3216 GLboolean ATI_texture_mirror_once
;
3217 GLboolean ATI_texture_env_combine3
;
3218 GLboolean ATI_fragment_shader
;
3219 GLboolean ATI_separate_stencil
;
3220 GLboolean MESA_pack_invert
;
3221 GLboolean MESA_resize_buffers
;
3222 GLboolean MESA_ycbcr_texture
;
3223 GLboolean MESA_texture_array
;
3224 GLboolean NV_blend_square
;
3225 GLboolean NV_conditional_render
;
3226 GLboolean NV_fog_distance
;
3227 GLboolean NV_fragment_program_option
;
3228 GLboolean NV_point_sprite
;
3229 GLboolean NV_primitive_restart
;
3230 GLboolean NV_texture_barrier
;
3231 GLboolean NV_texture_env_combine4
;
3232 GLboolean NV_texture_rectangle
;
3233 GLboolean TDFX_texture_compression_FXT1
;
3234 GLboolean OES_EGL_image
;
3235 GLboolean OES_draw_texture
;
3236 GLboolean OES_depth_texture_cube_map
;
3237 GLboolean OES_EGL_image_external
;
3238 GLboolean OES_compressed_ETC1_RGB8_texture
;
3239 GLboolean extension_sentinel
;
3240 /** The extension string */
3241 const GLubyte
*String
;
3242 /** Number of supported extensions */
3248 * A stack of matrices (projection, modelview, color, texture, etc).
3250 struct gl_matrix_stack
3252 GLmatrix
*Top
; /**< points into Stack */
3253 GLmatrix
*Stack
; /**< array [MaxDepth] of GLmatrix */
3254 GLuint Depth
; /**< 0 <= Depth < MaxDepth */
3255 GLuint MaxDepth
; /**< size of Stack[] array */
3256 GLuint DirtyFlag
; /**< _NEW_MODELVIEW or _NEW_PROJECTION, for example */
3261 * \name Bits for image transfer operations
3262 * \sa __struct gl_contextRec::ImageTransferState.
3265 #define IMAGE_SCALE_BIAS_BIT 0x1
3266 #define IMAGE_SHIFT_OFFSET_BIT 0x2
3267 #define IMAGE_MAP_COLOR_BIT 0x4
3268 #define IMAGE_CLAMP_BIT 0x800
3271 /** Pixel Transfer ops */
3272 #define IMAGE_BITS (IMAGE_SCALE_BIAS_BIT | \
3273 IMAGE_SHIFT_OFFSET_BIT | \
3274 IMAGE_MAP_COLOR_BIT)
3277 * \name Bits to indicate what state has changed.
3280 #define _NEW_MODELVIEW (1 << 0) /**< gl_context::ModelView */
3281 #define _NEW_PROJECTION (1 << 1) /**< gl_context::Projection */
3282 #define _NEW_TEXTURE_MATRIX (1 << 2) /**< gl_context::TextureMatrix */
3283 #define _NEW_COLOR (1 << 3) /**< gl_context::Color */
3284 #define _NEW_DEPTH (1 << 4) /**< gl_context::Depth */
3285 #define _NEW_EVAL (1 << 5) /**< gl_context::Eval, EvalMap */
3286 #define _NEW_FOG (1 << 6) /**< gl_context::Fog */
3287 #define _NEW_HINT (1 << 7) /**< gl_context::Hint */
3288 #define _NEW_LIGHT (1 << 8) /**< gl_context::Light */
3289 #define _NEW_LINE (1 << 9) /**< gl_context::Line */
3290 #define _NEW_PIXEL (1 << 10) /**< gl_context::Pixel */
3291 #define _NEW_POINT (1 << 11) /**< gl_context::Point */
3292 #define _NEW_POLYGON (1 << 12) /**< gl_context::Polygon */
3293 #define _NEW_POLYGONSTIPPLE (1 << 13) /**< gl_context::PolygonStipple */
3294 #define _NEW_SCISSOR (1 << 14) /**< gl_context::Scissor */
3295 #define _NEW_STENCIL (1 << 15) /**< gl_context::Stencil */
3296 #define _NEW_TEXTURE (1 << 16) /**< gl_context::Texture */
3297 #define _NEW_TRANSFORM (1 << 17) /**< gl_context::Transform */
3298 #define _NEW_VIEWPORT (1 << 18) /**< gl_context::Viewport */
3299 #define _NEW_PACKUNPACK (1 << 19) /**< gl_context::Pack, Unpack */
3300 #define _NEW_ARRAY (1 << 20) /**< gl_context::Array */
3301 #define _NEW_RENDERMODE (1 << 21) /**< gl_context::RenderMode, etc */
3302 #define _NEW_BUFFERS (1 << 22) /**< gl_context::Visual, DrawBuffer, */
3303 #define _NEW_CURRENT_ATTRIB (1 << 23) /**< gl_context::Current */
3304 #define _NEW_MULTISAMPLE (1 << 24) /**< gl_context::Multisample */
3305 #define _NEW_TRACK_MATRIX (1 << 25) /**< gl_context::VertexProgram */
3306 #define _NEW_PROGRAM (1 << 26) /**< New program/shader state */
3307 #define _NEW_PROGRAM_CONSTANTS (1 << 27)
3308 #define _NEW_BUFFER_OBJECT (1 << 28)
3309 #define _NEW_FRAG_CLAMP (1 << 29)
3310 #define _NEW_TRANSFORM_FEEDBACK (1 << 30) /**< gl_context::TransformFeedback */
3311 #define _NEW_VARYING_VP_INPUTS (1 << 31) /**< gl_context::varying_vp_inputs */
3315 * We use _NEW_TRANSFORM for GL_RASTERIZER_DISCARD. This #define is for
3318 #define _NEW_RASTERIZER_DISCARD _NEW_TRANSFORM
3323 * \name A bunch of flags that we think might be useful to drivers.
3325 * Set in the __struct gl_contextRec::_TriangleCaps bitfield.
3328 #define DD_SEPARATE_SPECULAR (1 << 0)
3329 #define DD_TRI_LIGHT_TWOSIDE (1 << 1)
3330 #define DD_TRI_UNFILLED (1 << 2)
3331 #define DD_TRI_SMOOTH (1 << 3)
3332 #define DD_TRI_STIPPLE (1 << 4)
3333 #define DD_TRI_OFFSET (1 << 5)
3334 #define DD_LINE_SMOOTH (1 << 6)
3335 #define DD_LINE_STIPPLE (1 << 7)
3336 #define DD_POINT_SMOOTH (1 << 8)
3337 #define DD_POINT_ATTEN (1 << 9)
3342 * Composite state flags
3345 #define _MESA_NEW_NEED_EYE_COORDS (_NEW_LIGHT | \
3351 #define _MESA_NEW_SEPARATE_SPECULAR (_NEW_LIGHT | \
3361 /* This has to be included here. */
3366 * Display list flags.
3367 * Strictly this is a tnl-private concept, but it doesn't seem
3368 * worthwhile adding a tnl private structure just to hold this one bit
3371 #define DLIST_DANGLING_REFS 0x1
3374 /** Opaque declaration of display list payload data type */
3375 union gl_dlist_node
;
3379 * Provide a location where information about a display list can be
3380 * collected. Could be extended with driverPrivate structures,
3381 * etc. in the future.
3383 struct gl_display_list
3386 GLbitfield Flags
; /**< DLIST_x flags */
3387 /** The dlist commands are in a linked list of nodes */
3388 union gl_dlist_node
*Head
;
3393 * State used during display list compilation and execution.
3395 struct gl_dlist_state
3397 GLuint CallDepth
; /**< Current recursion calling depth */
3399 struct gl_display_list
*CurrentList
; /**< List currently being compiled */
3400 union gl_dlist_node
*CurrentBlock
; /**< Pointer to current block of nodes */
3401 GLuint CurrentPos
; /**< Index into current block of nodes */
3403 GLvertexformat ListVtxfmt
;
3405 GLubyte ActiveAttribSize
[VERT_ATTRIB_MAX
];
3406 GLfloat CurrentAttrib
[VERT_ATTRIB_MAX
][4];
3408 GLubyte ActiveMaterialSize
[MAT_ATTRIB_MAX
];
3409 GLfloat CurrentMaterial
[MAT_ATTRIB_MAX
][4];
3412 /* State known to have been set by the currently-compiling display
3413 * list. Used to eliminate some redundant state changes.
3421 * These are a mapping of the GL_ARB_debug_output enums to small enums
3422 * suitable for use as an array index.
3425 enum mesa_debug_source
{
3426 MESA_DEBUG_SOURCE_API
,
3427 MESA_DEBUG_SOURCE_WINDOW_SYSTEM
,
3428 MESA_DEBUG_SOURCE_SHADER_COMPILER
,
3429 MESA_DEBUG_SOURCE_THIRD_PARTY
,
3430 MESA_DEBUG_SOURCE_APPLICATION
,
3431 MESA_DEBUG_SOURCE_OTHER
,
3432 MESA_DEBUG_SOURCE_COUNT
,
3435 enum mesa_debug_type
{
3436 MESA_DEBUG_TYPE_ERROR
,
3437 MESA_DEBUG_TYPE_DEPRECATED
,
3438 MESA_DEBUG_TYPE_UNDEFINED
,
3439 MESA_DEBUG_TYPE_PORTABILITY
,
3440 MESA_DEBUG_TYPE_PERFORMANCE
,
3441 MESA_DEBUG_TYPE_OTHER
,
3442 MESA_DEBUG_TYPE_COUNT
,
3445 enum mesa_debug_severity
{
3446 MESA_DEBUG_SEVERITY_LOW
,
3447 MESA_DEBUG_SEVERITY_MEDIUM
,
3448 MESA_DEBUG_SEVERITY_HIGH
,
3449 MESA_DEBUG_SEVERITY_COUNT
,
3455 * An error, warning, or other piece of debug information for an application
3456 * to consume via GL_ARB_debug_output.
3460 enum mesa_debug_source source
;
3461 enum mesa_debug_type type
;
3463 enum mesa_debug_severity severity
;
3468 struct gl_debug_namespace
3470 struct _mesa_HashTable
*IDs
;
3471 unsigned ZeroID
; /* a HashTable won't take zero, so store its state here */
3472 /** lists of IDs in the hash table at each severity */
3473 struct simple_node Severity
[MESA_DEBUG_SEVERITY_COUNT
];
3476 struct gl_debug_state
3478 GLDEBUGPROCARB Callback
;
3479 GLvoid
*CallbackData
;
3480 GLboolean SyncOutput
;
3481 GLboolean Defaults
[MESA_DEBUG_SEVERITY_COUNT
][MESA_DEBUG_SOURCE_COUNT
][MESA_DEBUG_TYPE_COUNT
];
3482 struct gl_debug_namespace Namespaces
[MESA_DEBUG_SOURCE_COUNT
][MESA_DEBUG_TYPE_COUNT
];
3483 struct gl_debug_msg Log
[MAX_DEBUG_LOGGED_MESSAGES
];
3486 GLint NextMsgLength
; /* redundant, but copied here from Log[NextMsg].length
3487 for the sake of the offsetof() code in get.c */
3491 * Enum for the OpenGL APIs we know about and may support.
3493 * NOTE: This must match the api_enum table in
3494 * src/mesa/main/get_hash_generator.py
3498 API_OPENGL_COMPAT
, /* legacy / compatibility contexts */
3502 API_OPENGL_LAST
= API_OPENGL_CORE
,
3506 * Driver-specific state flags.
3508 * These are or'd with gl_context::NewDriverState to notify a driver about
3509 * a state change. The driver sets the flags at context creation and
3510 * the meaning of the bits set is opaque to core Mesa.
3512 struct gl_driver_flags
3514 GLbitfield NewArray
; /**< Vertex array state */
3517 struct gl_uniform_buffer_binding
3519 struct gl_buffer_object
*BufferObject
;
3520 /** Start of uniform block data in the buffer */
3522 /** Size of data allowed to be referenced from the buffer (in bytes) */
3525 * glBindBufferBase() indicates that the Size should be ignored and only
3526 * limited by the current size of the BufferObject.
3528 GLboolean AutomaticSize
;
3532 * Mesa rendering context.
3534 * This is the central context data structure for Mesa. Almost all
3535 * OpenGL state is contained in this structure.
3536 * Think of this as a base class from which device drivers will derive
3539 * The struct gl_context typedef names this structure.
3543 /** State possibly shared with other contexts in the address space */
3544 struct gl_shared_state
*Shared
;
3546 /** \name API function pointer tables */
3550 * The current dispatch table for non-displaylist-saving execution, either
3551 * BeginEnd or OutsideBeginEnd
3553 struct _glapi_table
*Exec
;
3555 * The normal dispatch table for non-displaylist-saving, non-begin/end
3557 struct _glapi_table
*OutsideBeginEnd
;
3558 /** The dispatch table used between glNewList() and glEndList() */
3559 struct _glapi_table
*Save
;
3561 * The dispatch table used between glBegin() and glEnd() (outside of a
3562 * display list). Only valid functions between those two are set, which is
3563 * mostly just the set in a GLvertexformat struct.
3565 struct _glapi_table
*BeginEnd
;
3567 * Tracks the current dispatch table out of the 3 above, so that it can be
3568 * re-set on glXMakeCurrent().
3570 struct _glapi_table
*CurrentDispatch
;
3573 struct gl_config Visual
;
3574 struct gl_framebuffer
*DrawBuffer
; /**< buffer for writing */
3575 struct gl_framebuffer
*ReadBuffer
; /**< buffer for reading */
3576 struct gl_framebuffer
*WinSysDrawBuffer
; /**< set with MakeCurrent */
3577 struct gl_framebuffer
*WinSysReadBuffer
; /**< set with MakeCurrent */
3580 * Device driver function pointer table
3582 struct dd_function_table Driver
;
3584 /** Core/Driver constants */
3585 struct gl_constants Const
;
3587 /** \name The various 4x4 matrix stacks */
3589 struct gl_matrix_stack ModelviewMatrixStack
;
3590 struct gl_matrix_stack ProjectionMatrixStack
;
3591 struct gl_matrix_stack TextureMatrixStack
[MAX_TEXTURE_UNITS
];
3592 struct gl_matrix_stack ProgramMatrixStack
[MAX_PROGRAM_MATRICES
];
3593 struct gl_matrix_stack
*CurrentStack
; /**< Points to one of the above stacks */
3596 /** Combined modelview and projection matrix */
3597 GLmatrix _ModelProjectMatrix
;
3599 /** \name Display lists */
3600 struct gl_dlist_state ListState
;
3602 GLboolean ExecuteFlag
; /**< Execute GL commands? */
3603 GLboolean CompileFlag
; /**< Compile GL commands into display list? */
3605 /** Extension information */
3606 struct gl_extensions Extensions
;
3608 /** GL version integer, for example 31 for GL 3.1, or 20 for GLES 2.0. */
3610 char *VersionString
;
3612 /** \name State attribute stack (for glPush/PopAttrib) */
3614 GLuint AttribStackDepth
;
3615 struct gl_attrib_node
*AttribStack
[MAX_ATTRIB_STACK_DEPTH
];
3618 /** \name Renderer attribute groups
3620 * We define a struct for each attribute group to make pushing and popping
3621 * attributes easy. Also it's a good organization.
3624 struct gl_accum_attrib Accum
; /**< Accum buffer attributes */
3625 struct gl_colorbuffer_attrib Color
; /**< Color buffer attributes */
3626 struct gl_current_attrib Current
; /**< Current attributes */
3627 struct gl_depthbuffer_attrib Depth
; /**< Depth buffer attributes */
3628 struct gl_eval_attrib Eval
; /**< Eval attributes */
3629 struct gl_fog_attrib Fog
; /**< Fog attributes */
3630 struct gl_hint_attrib Hint
; /**< Hint attributes */
3631 struct gl_light_attrib Light
; /**< Light attributes */
3632 struct gl_line_attrib Line
; /**< Line attributes */
3633 struct gl_list_attrib List
; /**< List attributes */
3634 struct gl_multisample_attrib Multisample
;
3635 struct gl_pixel_attrib Pixel
; /**< Pixel attributes */
3636 struct gl_point_attrib Point
; /**< Point attributes */
3637 struct gl_polygon_attrib Polygon
; /**< Polygon attributes */
3638 GLuint PolygonStipple
[32]; /**< Polygon stipple */
3639 struct gl_scissor_attrib Scissor
; /**< Scissor attributes */
3640 struct gl_stencil_attrib Stencil
; /**< Stencil buffer attributes */
3641 struct gl_texture_attrib Texture
; /**< Texture attributes */
3642 struct gl_transform_attrib Transform
; /**< Transformation attributes */
3643 struct gl_viewport_attrib Viewport
; /**< Viewport attributes */
3646 /** \name Client attribute stack */
3648 GLuint ClientAttribStackDepth
;
3649 struct gl_attrib_node
*ClientAttribStack
[MAX_CLIENT_ATTRIB_STACK_DEPTH
];
3652 /** \name Client attribute groups */
3654 struct gl_array_attrib Array
; /**< Vertex arrays */
3655 struct gl_pixelstore_attrib Pack
; /**< Pixel packing */
3656 struct gl_pixelstore_attrib Unpack
; /**< Pixel unpacking */
3657 struct gl_pixelstore_attrib DefaultPacking
; /**< Default params */
3660 /** \name Other assorted state (not pushed/popped on attribute stack) */
3662 struct gl_pixelmaps PixelMaps
;
3664 struct gl_evaluators EvalMap
; /**< All evaluators */
3665 struct gl_feedback Feedback
; /**< Feedback */
3666 struct gl_selection Select
; /**< Selection */
3668 struct gl_program_state Program
; /**< general program state */
3669 struct gl_vertex_program_state VertexProgram
;
3670 struct gl_fragment_program_state FragmentProgram
;
3671 struct gl_geometry_program_state GeometryProgram
;
3672 struct gl_ati_fragment_shader_state ATIFragmentShader
;
3674 struct gl_shader_state Shader
; /**< GLSL shader object state */
3675 struct gl_shader_compiler_options ShaderCompilerOptions
[MESA_SHADER_TYPES
];
3677 struct gl_query_state Query
; /**< occlusion, timer queries */
3679 struct gl_transform_feedback_state TransformFeedback
;
3681 struct gl_buffer_object
*CopyReadBuffer
; /**< GL_ARB_copy_buffer */
3682 struct gl_buffer_object
*CopyWriteBuffer
; /**< GL_ARB_copy_buffer */
3685 * Current GL_ARB_uniform_buffer_object binding referenced by
3686 * GL_UNIFORM_BUFFER target for glBufferData, glMapBuffer, etc.
3688 struct gl_buffer_object
*UniformBuffer
;
3691 * Array of uniform buffers for GL_ARB_uniform_buffer_object and GL 3.1.
3692 * This is set up using glBindBufferRange() or glBindBufferBase(). They are
3693 * associated with uniform blocks by glUniformBlockBinding()'s state in the
3696 struct gl_uniform_buffer_binding
*UniformBufferBindings
;
3700 struct gl_meta_state
*Meta
; /**< for "meta" operations */
3702 /* GL_EXT_framebuffer_object */
3703 struct gl_renderbuffer
*CurrentRenderbuffer
;
3705 GLenum ErrorValue
; /**< Last error code */
3707 /* GL_ARB_robustness */
3711 * Recognize and silence repeated error debug messages in buggy apps.
3713 const char *ErrorDebugFmtString
;
3714 GLuint ErrorDebugCount
;
3716 /* GL_ARB_debug_output */
3717 struct gl_debug_state Debug
;
3719 GLenum RenderMode
; /**< either GL_RENDER, GL_SELECT, GL_FEEDBACK */
3720 GLbitfield NewState
; /**< bitwise-or of _NEW_* flags */
3721 GLbitfield NewDriverState
;/**< bitwise-or of flags from DriverFlags */
3723 struct gl_driver_flags DriverFlags
;
3725 GLboolean ViewportInitialized
; /**< has viewport size been initialized? */
3727 GLbitfield64 varying_vp_inputs
; /**< mask of VERT_BIT_* flags */
3729 /** \name Derived state */
3731 /** Bitwise-or of DD_* flags. Note that this bitfield may be used before
3732 * state validation so they need to always be current.
3734 GLbitfield _TriangleCaps
;
3735 GLbitfield _ImageTransferState
;/**< bitwise-or of IMAGE_*_BIT flags */
3736 GLfloat _EyeZDir
[3];
3737 GLfloat _ModelViewInvScale
;
3738 GLboolean _NeedEyeCoords
;
3739 GLboolean _ForceEyeCoords
;
3741 GLuint TextureStateTimestamp
; /**< detect changes to shared state */
3743 struct gl_list_extensions
*ListExt
; /**< driver dlist extensions */
3745 /** \name For debugging/development only */
3747 GLboolean FirstTimeCurrent
;
3750 /** software compression/decompression supported or not */
3751 GLboolean Mesa_DXTn
;
3753 GLboolean TextureFormatSupported
[MESA_FORMAT_COUNT
];
3756 * Use dp4 (rather than mul/mad) instructions for position
3759 GLboolean mvp_with_dp4
;
3761 GLboolean RasterDiscard
; /**< GL_RASTERIZER_DISCARD */
3764 * \name Hooks for module contexts.
3766 * These will eventually live in the driver or elsewhere.
3769 void *swrast_context
;
3770 void *swsetup_context
;
3771 void *swtnl_context
;
3773 struct st_context
*st
;
3780 extern int MESA_VERBOSE
;
3781 extern int MESA_DEBUG_FLAGS
;
3782 # define MESA_FUNCTION __FUNCTION__
3784 # define MESA_VERBOSE 0
3785 # define MESA_DEBUG_FLAGS 0
3786 # define MESA_FUNCTION "a function"
3793 /** The MESA_VERBOSE var is a bitmask of these flags */
3796 VERBOSE_VARRAY
= 0x0001,
3797 VERBOSE_TEXTURE
= 0x0002,
3798 VERBOSE_MATERIAL
= 0x0004,
3799 VERBOSE_PIPELINE
= 0x0008,
3800 VERBOSE_DRIVER
= 0x0010,
3801 VERBOSE_STATE
= 0x0020,
3802 VERBOSE_API
= 0x0040,
3803 VERBOSE_DISPLAY_LIST
= 0x0100,
3804 VERBOSE_LIGHTING
= 0x0200,
3805 VERBOSE_PRIMS
= 0x0400,
3806 VERBOSE_VERTS
= 0x0800,
3807 VERBOSE_DISASSEM
= 0x1000,
3808 VERBOSE_DRAW
= 0x2000,
3809 VERBOSE_SWAPBUFFERS
= 0x4000
3813 /** The MESA_DEBUG_FLAGS var is a bitmask of these flags */
3816 DEBUG_SILENT
= (1 << 0),
3817 DEBUG_ALWAYS_FLUSH
= (1 << 1),
3818 DEBUG_INCOMPLETE_TEXTURE
= (1 << 2),
3819 DEBUG_INCOMPLETE_FBO
= (1 << 3)
3828 #endif /* MTYPES_H */