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 */
44 /* Shader stages. Note that these will become 5 with tessellation.
45 * These MUST have the same values as PIPE_SHADER_*
47 #define MESA_SHADER_VERTEX 0
48 #define MESA_SHADER_FRAGMENT 1
49 #define MESA_SHADER_GEOMETRY 2
50 #define MESA_SHADER_TYPES 3
54 * Color channel data type.
57 typedef GLubyte GLchan
;
59 #define CHAN_MAXF 255.0F
60 #define CHAN_TYPE GL_UNSIGNED_BYTE
62 typedef GLushort GLchan
;
63 #define CHAN_MAX 65535
64 #define CHAN_MAXF 65535.0F
65 #define CHAN_TYPE GL_UNSIGNED_SHORT
67 typedef GLfloat GLchan
;
69 #define CHAN_MAXF 1.0F
70 #define CHAN_TYPE GL_FLOAT
72 #error "illegal number of color channel bits"
77 * Stencil buffer data type.
80 typedef GLubyte GLstencil
;
81 #elif STENCIL_BITS==16
82 typedef GLushort GLstencil
;
84 # error "illegal number of stencil bits"
89 * \name 64-bit extension of GLbitfield.
92 typedef GLuint64 GLbitfield64
;
94 #define BITFIELD64_ONE 1ULL
95 #define BITFIELD64_ALLONES ~0ULL
97 /** Set a single bit */
98 #define BITFIELD64_BIT(b) (BITFIELD64_ONE << (b))
100 /** Set a mask of the least significant \c b bits */
101 #define BITFIELD64_MASK(b) (((b) >= 64) ? BITFIELD64_ALLONES : \
102 (BITFIELD64_BIT(b) - 1))
105 * Set all bits from l (low bit) to h (high bit), inclusive.
107 * \note \C BITFIELD_64_RANGE(0, 63) return 64 set bits.
109 #define BITFIELD64_RANGE(l, h) (BITFIELD64_MASK((h) + 1) & ~BITFIELD64_MASK(l))
114 * \name Some forward type declarations
117 struct _mesa_HashTable
;
118 struct gl_attrib_node
;
119 struct gl_list_extensions
;
120 struct gl_meta_state
;
121 struct gl_pixelstore_attrib
;
122 struct gl_program_cache
;
123 struct gl_texture_format
;
124 struct gl_texture_image
;
125 struct gl_texture_object
;
133 * Indexes for vertex program attributes.
134 * GL_NV_vertex_program aliases generic attributes over the conventional
135 * attributes. In GL_ARB_vertex_program shader the aliasing is optional.
136 * In GL_ARB_vertex_shader / OpenGL 2.0 the aliasing is disallowed (the
137 * generic attributes are distinct/separate).
142 VERT_ATTRIB_WEIGHT
= 1,
143 VERT_ATTRIB_NORMAL
= 2,
144 VERT_ATTRIB_COLOR0
= 3,
145 VERT_ATTRIB_COLOR1
= 4,
147 VERT_ATTRIB_COLOR_INDEX
= 6,
148 VERT_ATTRIB_POINT_SIZE
= 6, /*alias*/
149 VERT_ATTRIB_EDGEFLAG
= 7,
150 VERT_ATTRIB_TEX0
= 8,
151 VERT_ATTRIB_TEX1
= 9,
152 VERT_ATTRIB_TEX2
= 10,
153 VERT_ATTRIB_TEX3
= 11,
154 VERT_ATTRIB_TEX4
= 12,
155 VERT_ATTRIB_TEX5
= 13,
156 VERT_ATTRIB_TEX6
= 14,
157 VERT_ATTRIB_TEX7
= 15,
158 VERT_ATTRIB_GENERIC0
= 16,
159 VERT_ATTRIB_GENERIC1
= 17,
160 VERT_ATTRIB_GENERIC2
= 18,
161 VERT_ATTRIB_GENERIC3
= 19,
162 VERT_ATTRIB_GENERIC4
= 20,
163 VERT_ATTRIB_GENERIC5
= 21,
164 VERT_ATTRIB_GENERIC6
= 22,
165 VERT_ATTRIB_GENERIC7
= 23,
166 VERT_ATTRIB_GENERIC8
= 24,
167 VERT_ATTRIB_GENERIC9
= 25,
168 VERT_ATTRIB_GENERIC10
= 26,
169 VERT_ATTRIB_GENERIC11
= 27,
170 VERT_ATTRIB_GENERIC12
= 28,
171 VERT_ATTRIB_GENERIC13
= 29,
172 VERT_ATTRIB_GENERIC14
= 30,
173 VERT_ATTRIB_GENERIC15
= 31,
178 * Bitflags for vertex attributes.
179 * These are used in bitfields in many places.
182 #define VERT_BIT_POS (1 << VERT_ATTRIB_POS)
183 #define VERT_BIT_WEIGHT (1 << VERT_ATTRIB_WEIGHT)
184 #define VERT_BIT_NORMAL (1 << VERT_ATTRIB_NORMAL)
185 #define VERT_BIT_COLOR0 (1 << VERT_ATTRIB_COLOR0)
186 #define VERT_BIT_COLOR1 (1 << VERT_ATTRIB_COLOR1)
187 #define VERT_BIT_FOG (1 << VERT_ATTRIB_FOG)
188 #define VERT_BIT_COLOR_INDEX (1 << VERT_ATTRIB_COLOR_INDEX)
189 #define VERT_BIT_EDGEFLAG (1 << VERT_ATTRIB_EDGEFLAG)
190 #define VERT_BIT_TEX0 (1 << VERT_ATTRIB_TEX0)
191 #define VERT_BIT_TEX1 (1 << VERT_ATTRIB_TEX1)
192 #define VERT_BIT_TEX2 (1 << VERT_ATTRIB_TEX2)
193 #define VERT_BIT_TEX3 (1 << VERT_ATTRIB_TEX3)
194 #define VERT_BIT_TEX4 (1 << VERT_ATTRIB_TEX4)
195 #define VERT_BIT_TEX5 (1 << VERT_ATTRIB_TEX5)
196 #define VERT_BIT_TEX6 (1 << VERT_ATTRIB_TEX6)
197 #define VERT_BIT_TEX7 (1 << VERT_ATTRIB_TEX7)
198 #define VERT_BIT_GENERIC0 (1 << VERT_ATTRIB_GENERIC0)
199 #define VERT_BIT_GENERIC1 (1 << VERT_ATTRIB_GENERIC1)
200 #define VERT_BIT_GENERIC2 (1 << VERT_ATTRIB_GENERIC2)
201 #define VERT_BIT_GENERIC3 (1 << VERT_ATTRIB_GENERIC3)
202 #define VERT_BIT_GENERIC4 (1 << VERT_ATTRIB_GENERIC4)
203 #define VERT_BIT_GENERIC5 (1 << VERT_ATTRIB_GENERIC5)
204 #define VERT_BIT_GENERIC6 (1 << VERT_ATTRIB_GENERIC6)
205 #define VERT_BIT_GENERIC7 (1 << VERT_ATTRIB_GENERIC7)
206 #define VERT_BIT_GENERIC8 (1 << VERT_ATTRIB_GENERIC8)
207 #define VERT_BIT_GENERIC9 (1 << VERT_ATTRIB_GENERIC9)
208 #define VERT_BIT_GENERIC10 (1 << VERT_ATTRIB_GENERIC10)
209 #define VERT_BIT_GENERIC11 (1 << VERT_ATTRIB_GENERIC11)
210 #define VERT_BIT_GENERIC12 (1 << VERT_ATTRIB_GENERIC12)
211 #define VERT_BIT_GENERIC13 (1 << VERT_ATTRIB_GENERIC13)
212 #define VERT_BIT_GENERIC14 (1 << VERT_ATTRIB_GENERIC14)
213 #define VERT_BIT_GENERIC15 (1 << VERT_ATTRIB_GENERIC15)
215 #define VERT_BIT_TEX(u) (1 << (VERT_ATTRIB_TEX0 + (u)))
216 #define VERT_BIT_GENERIC(g) (1 << (VERT_ATTRIB_GENERIC0 + (g)))
221 * Indexes for vertex program result attributes
225 VERT_RESULT_HPOS
= 0,
226 VERT_RESULT_COL0
= 1,
227 VERT_RESULT_COL1
= 2,
228 VERT_RESULT_FOGC
= 3,
229 VERT_RESULT_TEX0
= 4,
230 VERT_RESULT_TEX1
= 5,
231 VERT_RESULT_TEX2
= 6,
232 VERT_RESULT_TEX3
= 7,
233 VERT_RESULT_TEX4
= 8,
234 VERT_RESULT_TEX5
= 9,
235 VERT_RESULT_TEX6
= 10,
236 VERT_RESULT_TEX7
= 11,
237 VERT_RESULT_PSIZ
= 12,
238 VERT_RESULT_BFC0
= 13,
239 VERT_RESULT_BFC1
= 14,
240 VERT_RESULT_EDGE
= 15,
241 VERT_RESULT_VAR0
= 16, /**< shader varying */
242 VERT_RESULT_MAX
= (VERT_RESULT_VAR0
+ MAX_VARYING
)
246 /*********************************************/
249 * Indexes for geometry program attributes.
253 GEOM_ATTRIB_POSITION
= 0,
254 GEOM_ATTRIB_COLOR0
= 1,
255 GEOM_ATTRIB_COLOR1
= 2,
256 GEOM_ATTRIB_SECONDARY_COLOR0
= 3,
257 GEOM_ATTRIB_SECONDARY_COLOR1
= 4,
258 GEOM_ATTRIB_FOG_FRAG_COORD
= 5,
259 GEOM_ATTRIB_POINT_SIZE
= 6,
260 GEOM_ATTRIB_CLIP_VERTEX
= 7,
261 GEOM_ATTRIB_PRIMITIVE_ID
= 8,
262 GEOM_ATTRIB_TEX_COORD
= 9,
264 GEOM_ATTRIB_VAR0
= 16,
265 GEOM_ATTRIB_MAX
= (GEOM_ATTRIB_VAR0
+ MAX_VARYING
)
269 * Bitflags for geometry attributes.
270 * These are used in bitfields in many places.
273 #define GEOM_BIT_COLOR0 (1 << GEOM_ATTRIB_COLOR0)
274 #define GEOM_BIT_COLOR1 (1 << GEOM_ATTRIB_COLOR1)
275 #define GEOM_BIT_SCOLOR0 (1 << GEOM_ATTRIB_SECONDARY_COLOR0)
276 #define GEOM_BIT_SCOLOR1 (1 << GEOM_ATTRIB_SECONDARY_COLOR1)
277 #define GEOM_BIT_TEX_COORD (1 << GEOM_ATTRIB_TEX_COORD)
278 #define GEOM_BIT_FOG_COORD (1 << GEOM_ATTRIB_FOG_FRAG_COORD)
279 #define GEOM_BIT_POSITION (1 << GEOM_ATTRIB_POSITION)
280 #define GEOM_BIT_POINT_SIDE (1 << GEOM_ATTRIB_POINT_SIZE)
281 #define GEOM_BIT_CLIP_VERTEX (1 << GEOM_ATTRIB_CLIP_VERTEX)
282 #define GEOM_BIT_PRIM_ID (1 << GEOM_ATTRIB_PRIMITIVE_ID)
283 #define GEOM_BIT_VAR0 (1 << GEOM_ATTRIB_VAR0)
285 #define GEOM_BIT_VAR(g) (1 << (GEOM_BIT_VAR0 + (g)))
290 * Indexes for geometry program result attributes
295 GEOM_RESULT_COL0
= 1,
296 GEOM_RESULT_COL1
= 2,
297 GEOM_RESULT_SCOL0
= 3,
298 GEOM_RESULT_SCOL1
= 4,
299 GEOM_RESULT_FOGC
= 5,
300 GEOM_RESULT_TEX0
= 6,
301 GEOM_RESULT_TEX1
= 7,
302 GEOM_RESULT_TEX2
= 8,
303 GEOM_RESULT_TEX3
= 9,
304 GEOM_RESULT_TEX4
= 10,
305 GEOM_RESULT_TEX5
= 11,
306 GEOM_RESULT_TEX6
= 12,
307 GEOM_RESULT_TEX7
= 13,
308 GEOM_RESULT_PSIZ
= 14,
309 GEOM_RESULT_CLPV
= 15,
310 GEOM_RESULT_PRID
= 16,
311 GEOM_RESULT_LAYR
= 17,
312 GEOM_RESULT_VAR0
= 18, /**< shader varying, should really be 16 */
313 /* ### we need to -2 because var0 is 18 instead 16 like in the others */
314 GEOM_RESULT_MAX
= (GEOM_RESULT_VAR0
+ MAX_VARYING
- 2)
319 * Indexes for fragment program input attributes.
323 FRAG_ATTRIB_WPOS
= 0,
324 FRAG_ATTRIB_COL0
= 1,
325 FRAG_ATTRIB_COL1
= 2,
326 FRAG_ATTRIB_FOGC
= 3,
327 FRAG_ATTRIB_TEX0
= 4,
328 FRAG_ATTRIB_TEX1
= 5,
329 FRAG_ATTRIB_TEX2
= 6,
330 FRAG_ATTRIB_TEX3
= 7,
331 FRAG_ATTRIB_TEX4
= 8,
332 FRAG_ATTRIB_TEX5
= 9,
333 FRAG_ATTRIB_TEX6
= 10,
334 FRAG_ATTRIB_TEX7
= 11,
335 FRAG_ATTRIB_FACE
= 12, /**< front/back face */
336 FRAG_ATTRIB_PNTC
= 13, /**< sprite/point coord */
337 FRAG_ATTRIB_VAR0
= 14, /**< shader varying */
338 FRAG_ATTRIB_MAX
= (FRAG_ATTRIB_VAR0
+ MAX_VARYING
)
342 * Bitflags for fragment program input attributes.
345 #define FRAG_BIT_WPOS (1 << FRAG_ATTRIB_WPOS)
346 #define FRAG_BIT_COL0 (1 << FRAG_ATTRIB_COL0)
347 #define FRAG_BIT_COL1 (1 << FRAG_ATTRIB_COL1)
348 #define FRAG_BIT_FOGC (1 << FRAG_ATTRIB_FOGC)
349 #define FRAG_BIT_FACE (1 << FRAG_ATTRIB_FACE)
350 #define FRAG_BIT_PNTC (1 << FRAG_ATTRIB_PNTC)
351 #define FRAG_BIT_TEX0 (1 << FRAG_ATTRIB_TEX0)
352 #define FRAG_BIT_TEX1 (1 << FRAG_ATTRIB_TEX1)
353 #define FRAG_BIT_TEX2 (1 << FRAG_ATTRIB_TEX2)
354 #define FRAG_BIT_TEX3 (1 << FRAG_ATTRIB_TEX3)
355 #define FRAG_BIT_TEX4 (1 << FRAG_ATTRIB_TEX4)
356 #define FRAG_BIT_TEX5 (1 << FRAG_ATTRIB_TEX5)
357 #define FRAG_BIT_TEX6 (1 << FRAG_ATTRIB_TEX6)
358 #define FRAG_BIT_TEX7 (1 << FRAG_ATTRIB_TEX7)
359 #define FRAG_BIT_VAR0 (1 << FRAG_ATTRIB_VAR0)
361 #define FRAG_BIT_TEX(U) (FRAG_BIT_TEX0 << (U))
362 #define FRAG_BIT_VAR(V) (FRAG_BIT_VAR0 << (V))
364 #define FRAG_BITS_TEX_ANY (FRAG_BIT_TEX0| \
376 * Fragment program results
380 FRAG_RESULT_DEPTH
= 0,
381 FRAG_RESULT_STENCIL
= 1,
382 FRAG_RESULT_COLOR
= 2,
383 FRAG_RESULT_DATA0
= 3,
384 FRAG_RESULT_MAX
= (FRAG_RESULT_DATA0
+ MAX_DRAW_BUFFERS
)
389 * Indexes for all renderbuffers
393 /* the four standard color buffers */
401 /* optional aux buffer */
403 /* generic renderbuffers */
416 * Bit flags for all renderbuffers
418 #define BUFFER_BIT_FRONT_LEFT (1 << BUFFER_FRONT_LEFT)
419 #define BUFFER_BIT_BACK_LEFT (1 << BUFFER_BACK_LEFT)
420 #define BUFFER_BIT_FRONT_RIGHT (1 << BUFFER_FRONT_RIGHT)
421 #define BUFFER_BIT_BACK_RIGHT (1 << BUFFER_BACK_RIGHT)
422 #define BUFFER_BIT_AUX0 (1 << BUFFER_AUX0)
423 #define BUFFER_BIT_AUX1 (1 << BUFFER_AUX1)
424 #define BUFFER_BIT_AUX2 (1 << BUFFER_AUX2)
425 #define BUFFER_BIT_AUX3 (1 << BUFFER_AUX3)
426 #define BUFFER_BIT_DEPTH (1 << BUFFER_DEPTH)
427 #define BUFFER_BIT_STENCIL (1 << BUFFER_STENCIL)
428 #define BUFFER_BIT_ACCUM (1 << BUFFER_ACCUM)
429 #define BUFFER_BIT_COLOR0 (1 << BUFFER_COLOR0)
430 #define BUFFER_BIT_COLOR1 (1 << BUFFER_COLOR1)
431 #define BUFFER_BIT_COLOR2 (1 << BUFFER_COLOR2)
432 #define BUFFER_BIT_COLOR3 (1 << BUFFER_COLOR3)
433 #define BUFFER_BIT_COLOR4 (1 << BUFFER_COLOR4)
434 #define BUFFER_BIT_COLOR5 (1 << BUFFER_COLOR5)
435 #define BUFFER_BIT_COLOR6 (1 << BUFFER_COLOR6)
436 #define BUFFER_BIT_COLOR7 (1 << BUFFER_COLOR7)
439 * Mask of all the color buffer bits (but not accum).
441 #define BUFFER_BITS_COLOR (BUFFER_BIT_FRONT_LEFT | \
442 BUFFER_BIT_BACK_LEFT | \
443 BUFFER_BIT_FRONT_RIGHT | \
444 BUFFER_BIT_BACK_RIGHT | \
446 BUFFER_BIT_COLOR0 | \
447 BUFFER_BIT_COLOR1 | \
448 BUFFER_BIT_COLOR2 | \
449 BUFFER_BIT_COLOR3 | \
450 BUFFER_BIT_COLOR4 | \
451 BUFFER_BIT_COLOR5 | \
452 BUFFER_BIT_COLOR6 | \
457 * Data structure for color tables
459 struct gl_color_table
461 GLenum InternalFormat
; /**< The user-specified format */
462 GLenum _BaseFormat
; /**< GL_ALPHA, GL_RGBA, GL_RGB, etc */
463 GLuint Size
; /**< number of entries in table */
464 GLfloat
*TableF
; /**< Color table, floating point values */
465 GLubyte
*TableUB
; /**< Color table, ubyte values */
470 GLubyte LuminanceSize
;
471 GLubyte IntensitySize
;
476 * \name Bit flags used for updating material values.
479 #define MAT_ATTRIB_FRONT_AMBIENT 0
480 #define MAT_ATTRIB_BACK_AMBIENT 1
481 #define MAT_ATTRIB_FRONT_DIFFUSE 2
482 #define MAT_ATTRIB_BACK_DIFFUSE 3
483 #define MAT_ATTRIB_FRONT_SPECULAR 4
484 #define MAT_ATTRIB_BACK_SPECULAR 5
485 #define MAT_ATTRIB_FRONT_EMISSION 6
486 #define MAT_ATTRIB_BACK_EMISSION 7
487 #define MAT_ATTRIB_FRONT_SHININESS 8
488 #define MAT_ATTRIB_BACK_SHININESS 9
489 #define MAT_ATTRIB_FRONT_INDEXES 10
490 #define MAT_ATTRIB_BACK_INDEXES 11
491 #define MAT_ATTRIB_MAX 12
493 #define MAT_ATTRIB_AMBIENT(f) (MAT_ATTRIB_FRONT_AMBIENT+(f))
494 #define MAT_ATTRIB_DIFFUSE(f) (MAT_ATTRIB_FRONT_DIFFUSE+(f))
495 #define MAT_ATTRIB_SPECULAR(f) (MAT_ATTRIB_FRONT_SPECULAR+(f))
496 #define MAT_ATTRIB_EMISSION(f) (MAT_ATTRIB_FRONT_EMISSION+(f))
497 #define MAT_ATTRIB_SHININESS(f)(MAT_ATTRIB_FRONT_SHININESS+(f))
498 #define MAT_ATTRIB_INDEXES(f) (MAT_ATTRIB_FRONT_INDEXES+(f))
500 #define MAT_INDEX_AMBIENT 0
501 #define MAT_INDEX_DIFFUSE 1
502 #define MAT_INDEX_SPECULAR 2
504 #define MAT_BIT_FRONT_AMBIENT (1<<MAT_ATTRIB_FRONT_AMBIENT)
505 #define MAT_BIT_BACK_AMBIENT (1<<MAT_ATTRIB_BACK_AMBIENT)
506 #define MAT_BIT_FRONT_DIFFUSE (1<<MAT_ATTRIB_FRONT_DIFFUSE)
507 #define MAT_BIT_BACK_DIFFUSE (1<<MAT_ATTRIB_BACK_DIFFUSE)
508 #define MAT_BIT_FRONT_SPECULAR (1<<MAT_ATTRIB_FRONT_SPECULAR)
509 #define MAT_BIT_BACK_SPECULAR (1<<MAT_ATTRIB_BACK_SPECULAR)
510 #define MAT_BIT_FRONT_EMISSION (1<<MAT_ATTRIB_FRONT_EMISSION)
511 #define MAT_BIT_BACK_EMISSION (1<<MAT_ATTRIB_BACK_EMISSION)
512 #define MAT_BIT_FRONT_SHININESS (1<<MAT_ATTRIB_FRONT_SHININESS)
513 #define MAT_BIT_BACK_SHININESS (1<<MAT_ATTRIB_BACK_SHININESS)
514 #define MAT_BIT_FRONT_INDEXES (1<<MAT_ATTRIB_FRONT_INDEXES)
515 #define MAT_BIT_BACK_INDEXES (1<<MAT_ATTRIB_BACK_INDEXES)
518 #define FRONT_MATERIAL_BITS (MAT_BIT_FRONT_EMISSION | \
519 MAT_BIT_FRONT_AMBIENT | \
520 MAT_BIT_FRONT_DIFFUSE | \
521 MAT_BIT_FRONT_SPECULAR | \
522 MAT_BIT_FRONT_SHININESS | \
523 MAT_BIT_FRONT_INDEXES)
525 #define BACK_MATERIAL_BITS (MAT_BIT_BACK_EMISSION | \
526 MAT_BIT_BACK_AMBIENT | \
527 MAT_BIT_BACK_DIFFUSE | \
528 MAT_BIT_BACK_SPECULAR | \
529 MAT_BIT_BACK_SHININESS | \
530 MAT_BIT_BACK_INDEXES)
532 #define ALL_MATERIAL_BITS (FRONT_MATERIAL_BITS | BACK_MATERIAL_BITS)
536 #define EXP_TABLE_SIZE 512 /**< Specular exponent lookup table sizes */
537 #define SHINE_TABLE_SIZE 256 /**< Material shininess lookup table sizes */
540 * Material shininess lookup table.
544 struct gl_shine_tab
*next
, *prev
;
545 GLfloat tab
[SHINE_TABLE_SIZE
+1];
553 GLboolean colorIndexMode
;
554 GLuint doubleBufferMode
;
557 GLboolean haveAccumBuffer
;
558 GLboolean haveDepthBuffer
;
559 GLboolean haveStencilBuffer
;
561 GLint redBits
, greenBits
, blueBits
, alphaBits
; /* bits per comp */
562 GLuint redMask
, greenMask
, blueMask
, alphaMask
;
563 GLint rgbBits
; /* total bits for rgb */
564 GLint indexBits
; /* total bits for colorindex */
566 GLint accumRedBits
, accumGreenBits
, accumBlueBits
, accumAlphaBits
;
574 /* EXT_visual_rating / GLX 1.2 */
577 /* EXT_visual_info / GLX 1.2 */
578 GLint transparentPixel
;
579 /* colors are floats scaled to ints */
580 GLint transparentRed
, transparentGreen
, transparentBlue
, transparentAlpha
;
581 GLint transparentIndex
;
583 /* ARB_multisample / SGIS_multisample */
587 /* SGIX_pbuffer / GLX 1.3 */
588 GLint maxPbufferWidth
;
589 GLint maxPbufferHeight
;
590 GLint maxPbufferPixels
;
591 GLint optimalPbufferWidth
; /* Only for SGIX_pbuffer. */
592 GLint optimalPbufferHeight
; /* Only for SGIX_pbuffer. */
594 /* OML_swap_method */
597 /* EXT_texture_from_pixmap */
598 GLint bindToTextureRgb
;
599 GLint bindToTextureRgba
;
600 GLint bindToMipmapTexture
;
601 GLint bindToTextureTargets
;
606 * Light source state.
610 struct gl_light
*next
; /**< double linked list with sentinel */
611 struct gl_light
*prev
;
613 GLfloat Ambient
[4]; /**< ambient color */
614 GLfloat Diffuse
[4]; /**< diffuse color */
615 GLfloat Specular
[4]; /**< specular color */
616 GLfloat EyePosition
[4]; /**< position in eye coordinates */
617 GLfloat SpotDirection
[4]; /**< spotlight direction in eye coordinates */
618 GLfloat SpotExponent
;
619 GLfloat SpotCutoff
; /**< in degrees */
620 GLfloat _CosCutoffNeg
; /**< = cos(SpotCutoff) */
621 GLfloat _CosCutoff
; /**< = MAX(0, cos(SpotCutoff)) */
622 GLfloat ConstantAttenuation
;
623 GLfloat LinearAttenuation
;
624 GLfloat QuadraticAttenuation
;
625 GLboolean Enabled
; /**< On/off flag */
628 * \name Derived fields
631 GLbitfield _Flags
; /**< State */
633 GLfloat _Position
[4]; /**< position in eye/obj coordinates */
634 GLfloat _VP_inf_norm
[3]; /**< Norm direction to infinite light */
635 GLfloat _h_inf_norm
[3]; /**< Norm( _VP_inf_norm + <0,0,1> ) */
636 GLfloat _NormSpotDirection
[4]; /**< normalized spotlight direction */
637 GLfloat _VP_inf_spot_attenuation
;
639 GLfloat _SpotExpTable
[EXP_TABLE_SIZE
][2]; /**< to replace a pow() call */
640 GLfloat _MatAmbient
[2][3]; /**< material ambient * light ambient */
641 GLfloat _MatDiffuse
[2][3]; /**< material diffuse * light diffuse */
642 GLfloat _MatSpecular
[2][3]; /**< material spec * light specular */
643 GLfloat _dli
; /**< CI diffuse light intensity */
644 GLfloat _sli
; /**< CI specular light intensity */
654 GLfloat Ambient
[4]; /**< ambient color */
655 GLboolean LocalViewer
; /**< Local (or infinite) view point? */
656 GLboolean TwoSide
; /**< Two (or one) sided lighting? */
657 GLenum ColorControl
; /**< either GL_SINGLE_COLOR
658 * or GL_SEPARATE_SPECULAR_COLOR */
667 GLfloat Attrib
[MAT_ATTRIB_MAX
][4];
672 * Accumulation buffer attribute group (GL_ACCUM_BUFFER_BIT)
674 struct gl_accum_attrib
676 GLfloat ClearColor
[4]; /**< Accumulation buffer clear color */
681 * Color buffer attribute group (GL_COLOR_BUFFER_BIT).
683 struct gl_colorbuffer_attrib
685 GLuint ClearIndex
; /**< Index to use for glClear */
686 GLclampf ClearColor
[4]; /**< Color to use for glClear */
688 GLuint IndexMask
; /**< Color index write mask */
689 GLubyte ColorMask
[MAX_DRAW_BUFFERS
][4];/**< Each flag is 0xff or 0x0 */
691 GLenum DrawBuffer
[MAX_DRAW_BUFFERS
]; /**< Which buffer to draw into */
694 * \name alpha testing
697 GLboolean AlphaEnabled
; /**< Alpha test enabled flag */
698 GLenum AlphaFunc
; /**< Alpha test function */
699 GLclampf AlphaRef
; /**< Alpha reference value */
706 GLbitfield BlendEnabled
; /**< Per-buffer blend enable flags */
707 GLenum BlendSrcRGB
; /**< Blending source operator */
708 GLenum BlendDstRGB
; /**< Blending destination operator */
709 GLenum BlendSrcA
; /**< GL_INGR_blend_func_separate */
710 GLenum BlendDstA
; /**< GL_INGR_blend_func_separate */
711 GLenum BlendEquationRGB
; /**< Blending equation */
712 GLenum BlendEquationA
; /**< GL_EXT_blend_equation_separate */
713 GLfloat BlendColor
[4]; /**< Blending color */
720 GLenum LogicOp
; /**< Logic operator */
721 GLboolean IndexLogicOpEnabled
; /**< Color index logic op enabled flag */
722 GLboolean ColorLogicOpEnabled
; /**< RGBA logic op enabled flag */
723 GLboolean _LogicOpEnabled
; /**< RGBA logic op + EXT_blend_logic_op enabled flag */
726 GLboolean DitherFlag
; /**< Dither enable flag */
728 GLenum ClampFragmentColor
; /**< GL_TRUE, GL_FALSE or GL_FIXED_ONLY_ARB */
729 GLenum ClampReadColor
; /**< GL_TRUE, GL_FALSE or GL_FIXED_ONLY_ARB */
734 * Current attribute group (GL_CURRENT_BIT).
736 struct gl_current_attrib
739 * \name Current vertex attributes.
740 * \note Values are valid only after FLUSH_VERTICES has been called.
741 * \note Index and Edgeflag current values are stored as floats in the
742 * SIX and SEVEN attribute slots.
744 GLfloat Attrib
[VERT_ATTRIB_MAX
][4]; /**< Position, color, texcoords, etc */
747 * \name Current raster position attributes (always valid).
748 * \note This set of attributes is very similar to the SWvertex struct.
751 GLfloat RasterPos
[4];
752 GLfloat RasterDistance
;
753 GLfloat RasterColor
[4];
754 GLfloat RasterSecondaryColor
[4];
755 GLfloat RasterTexCoords
[MAX_TEXTURE_COORD_UNITS
][4];
756 GLboolean RasterPosValid
;
762 * Depth buffer attribute group (GL_DEPTH_BUFFER_BIT).
764 struct gl_depthbuffer_attrib
766 GLenum Func
; /**< Function for depth buffer compare */
767 GLclampd Clear
; /**< Value to clear depth buffer to */
768 GLboolean Test
; /**< Depth buffering enabled flag */
769 GLboolean Mask
; /**< Depth buffer writable? */
770 GLboolean BoundsTest
; /**< GL_EXT_depth_bounds_test */
771 GLfloat BoundsMin
, BoundsMax
;/**< GL_EXT_depth_bounds_test */
776 * Evaluator attribute group (GL_EVAL_BIT).
778 struct gl_eval_attrib
784 GLboolean Map1Color4
;
786 GLboolean Map1Normal
;
787 GLboolean Map1TextureCoord1
;
788 GLboolean Map1TextureCoord2
;
789 GLboolean Map1TextureCoord3
;
790 GLboolean Map1TextureCoord4
;
791 GLboolean Map1Vertex3
;
792 GLboolean Map1Vertex4
;
793 GLboolean Map1Attrib
[16]; /* GL_NV_vertex_program */
794 GLboolean Map2Color4
;
796 GLboolean Map2Normal
;
797 GLboolean Map2TextureCoord1
;
798 GLboolean Map2TextureCoord2
;
799 GLboolean Map2TextureCoord3
;
800 GLboolean Map2TextureCoord4
;
801 GLboolean Map2Vertex3
;
802 GLboolean Map2Vertex4
;
803 GLboolean Map2Attrib
[16]; /* GL_NV_vertex_program */
804 GLboolean AutoNormal
;
808 * \name Map Grid endpoints and divisions and calculated du values
812 GLfloat MapGrid1u1
, MapGrid1u2
, MapGrid1du
;
813 GLint MapGrid2un
, MapGrid2vn
;
814 GLfloat MapGrid2u1
, MapGrid2u2
, MapGrid2du
;
815 GLfloat MapGrid2v1
, MapGrid2v2
, MapGrid2dv
;
821 * Fog attribute group (GL_FOG_BIT).
825 GLboolean Enabled
; /**< Fog enabled flag */
826 GLfloat Color
[4]; /**< Fog color */
827 GLfloat Density
; /**< Density >= 0.0 */
828 GLfloat Start
; /**< Start distance in eye coords */
829 GLfloat End
; /**< End distance in eye coords */
830 GLfloat Index
; /**< Fog index */
831 GLenum Mode
; /**< Fog mode */
832 GLboolean ColorSumEnabled
;
833 GLenum FogCoordinateSource
; /**< GL_EXT_fog_coord */
834 GLfloat _Scale
; /**< (End == Start) ? 1.0 : 1.0 / (End - Start) */
839 * Hint attribute group (GL_HINT_BIT).
841 * Values are always one of GL_FASTEST, GL_NICEST, or GL_DONT_CARE.
843 struct gl_hint_attrib
845 GLenum PerspectiveCorrection
;
848 GLenum PolygonSmooth
;
850 GLenum ClipVolumeClipping
; /**< GL_EXT_clip_volume_hint */
851 GLenum TextureCompression
; /**< GL_ARB_texture_compression */
852 GLenum GenerateMipmap
; /**< GL_SGIS_generate_mipmap */
853 GLenum FragmentShaderDerivative
; /**< GL_ARB_fragment_shader */
860 #define LIGHT_SPOT 0x1
861 #define LIGHT_LOCAL_VIEWER 0x2
862 #define LIGHT_POSITIONAL 0x4
863 #define LIGHT_NEED_VERTICES (LIGHT_POSITIONAL|LIGHT_LOCAL_VIEWER)
868 * Lighting attribute group (GL_LIGHT_BIT).
870 struct gl_light_attrib
872 struct gl_light Light
[MAX_LIGHTS
]; /**< Array of light sources */
873 struct gl_lightmodel Model
; /**< Lighting model */
876 * Must flush FLUSH_VERTICES before referencing:
879 struct gl_material Material
; /**< Includes front & back values */
882 GLboolean Enabled
; /**< Lighting enabled flag */
883 GLenum ShadeModel
; /**< GL_FLAT or GL_SMOOTH */
884 GLenum ProvokingVertex
; /**< GL_EXT_provoking_vertex */
885 GLenum ColorMaterialFace
; /**< GL_FRONT, BACK or FRONT_AND_BACK */
886 GLenum ColorMaterialMode
; /**< GL_AMBIENT, GL_DIFFUSE, etc */
887 GLbitfield ColorMaterialBitmask
; /**< bitmask formed from Face and Mode */
888 GLboolean ColorMaterialEnabled
;
889 GLenum ClampVertexColor
;
891 struct gl_light EnabledList
; /**< List sentinel */
894 * Derived state for optimizations:
897 GLboolean _NeedEyeCoords
;
898 GLboolean _NeedVertices
; /**< Use fast shader? */
899 GLbitfield _Flags
; /**< LIGHT_* flags, see above */
900 GLfloat _BaseColor
[2][3];
906 * Line attribute group (GL_LINE_BIT).
908 struct gl_line_attrib
910 GLboolean SmoothFlag
; /**< GL_LINE_SMOOTH enabled? */
911 GLboolean StippleFlag
; /**< GL_LINE_STIPPLE enabled? */
912 GLushort StipplePattern
; /**< Stipple pattern */
913 GLint StippleFactor
; /**< Stipple repeat factor */
914 GLfloat Width
; /**< Line width */
919 * Display list attribute group (GL_LIST_BIT).
921 struct gl_list_attrib
928 * Multisample attribute group (GL_MULTISAMPLE_BIT).
930 struct gl_multisample_attrib
933 GLboolean _Enabled
; /**< true if Enabled and multisample buffer */
934 GLboolean SampleAlphaToCoverage
;
935 GLboolean SampleAlphaToOne
;
936 GLboolean SampleCoverage
;
937 GLfloat SampleCoverageValue
;
938 GLboolean SampleCoverageInvert
;
943 * A pixelmap (see glPixelMap)
948 GLfloat Map
[MAX_PIXEL_MAP_TABLE
];
949 GLubyte Map8
[MAX_PIXEL_MAP_TABLE
]; /**< converted to 8-bit color */
954 * Collection of all pixelmaps
958 struct gl_pixelmap RtoR
; /**< i.e. GL_PIXEL_MAP_R_TO_R */
959 struct gl_pixelmap GtoG
;
960 struct gl_pixelmap BtoB
;
961 struct gl_pixelmap AtoA
;
962 struct gl_pixelmap ItoR
;
963 struct gl_pixelmap ItoG
;
964 struct gl_pixelmap ItoB
;
965 struct gl_pixelmap ItoA
;
966 struct gl_pixelmap ItoI
;
967 struct gl_pixelmap StoS
;
972 * Pixel attribute group (GL_PIXEL_MODE_BIT).
974 struct gl_pixel_attrib
976 GLenum ReadBuffer
; /**< source buffer for glRead/CopyPixels() */
978 /*--- Begin Pixel Transfer State ---*/
979 /* Fields are in the order in which they're applied... */
981 /** Scale & Bias (index shift, offset) */
983 GLfloat RedBias
, RedScale
;
984 GLfloat GreenBias
, GreenScale
;
985 GLfloat BlueBias
, BlueScale
;
986 GLfloat AlphaBias
, AlphaScale
;
987 GLfloat DepthBias
, DepthScale
;
988 GLint IndexShift
, IndexOffset
;
992 /* Note: actual pixel maps are not part of this attrib group */
993 GLboolean MapColorFlag
;
994 GLboolean MapStencilFlag
;
996 /*--- End Pixel Transfer State ---*/
999 GLfloat ZoomX
, ZoomY
;
1001 /** GL_SGI_texture_color_table */
1002 GLfloat TextureColorTableScale
[4]; /**< RGBA */
1003 GLfloat TextureColorTableBias
[4]; /**< RGBA */
1008 * Point attribute group (GL_POINT_BIT).
1010 struct gl_point_attrib
1012 GLboolean SmoothFlag
; /**< True if GL_POINT_SMOOTH is enabled */
1013 GLfloat Size
; /**< User-specified point size */
1014 GLfloat Params
[3]; /**< GL_EXT_point_parameters */
1015 GLfloat MinSize
, MaxSize
; /**< GL_EXT_point_parameters */
1016 GLfloat Threshold
; /**< GL_EXT_point_parameters */
1017 GLboolean _Attenuated
; /**< True if Params != [1, 0, 0] */
1018 GLboolean PointSprite
; /**< GL_NV/ARB_point_sprite */
1019 GLboolean CoordReplace
[MAX_TEXTURE_COORD_UNITS
]; /**< GL_ARB_point_sprite*/
1020 GLenum SpriteRMode
; /**< GL_NV_point_sprite (only!) */
1021 GLenum SpriteOrigin
; /**< GL_ARB_point_sprite */
1026 * Polygon attribute group (GL_POLYGON_BIT).
1028 struct gl_polygon_attrib
1030 GLenum FrontFace
; /**< Either GL_CW or GL_CCW */
1031 GLenum FrontMode
; /**< Either GL_POINT, GL_LINE or GL_FILL */
1032 GLenum BackMode
; /**< Either GL_POINT, GL_LINE or GL_FILL */
1033 GLboolean _FrontBit
; /**< 0=GL_CCW, 1=GL_CW */
1034 GLboolean CullFlag
; /**< Culling on/off flag */
1035 GLboolean SmoothFlag
; /**< True if GL_POLYGON_SMOOTH is enabled */
1036 GLboolean StippleFlag
; /**< True if GL_POLYGON_STIPPLE is enabled */
1037 GLenum CullFaceMode
; /**< Culling mode GL_FRONT or GL_BACK */
1038 GLfloat OffsetFactor
; /**< Polygon offset factor, from user */
1039 GLfloat OffsetUnits
; /**< Polygon offset units, from user */
1040 GLboolean OffsetPoint
; /**< Offset in GL_POINT mode */
1041 GLboolean OffsetLine
; /**< Offset in GL_LINE mode */
1042 GLboolean OffsetFill
; /**< Offset in GL_FILL mode */
1047 * Scissor attributes (GL_SCISSOR_BIT).
1049 struct gl_scissor_attrib
1051 GLboolean Enabled
; /**< Scissor test enabled? */
1052 GLint X
, Y
; /**< Lower left corner of box */
1053 GLsizei Width
, Height
; /**< Size of box */
1058 * Stencil attribute group (GL_STENCIL_BUFFER_BIT).
1060 * Three sets of stencil data are tracked so that OpenGL 2.0,
1061 * GL_EXT_stencil_two_side, and GL_ATI_separate_stencil can all be supported
1062 * simultaneously. In each of the stencil state arrays, element 0 corresponds
1063 * to GL_FRONT. Element 1 corresponds to the OpenGL 2.0 /
1064 * GL_ATI_separate_stencil GL_BACK state. Element 2 corresponds to the
1065 * GL_EXT_stencil_two_side GL_BACK state.
1067 * The derived value \c _BackFace is either 1 or 2 depending on whether or
1068 * not GL_STENCIL_TEST_TWO_SIDE_EXT is enabled.
1070 * The derived value \c _TestTwoSide is set when the front-face and back-face
1071 * stencil state are different.
1073 struct gl_stencil_attrib
1075 GLboolean Enabled
; /**< Enabled flag */
1076 GLboolean TestTwoSide
; /**< GL_EXT_stencil_two_side */
1077 GLubyte ActiveFace
; /**< GL_EXT_stencil_two_side (0 or 2) */
1078 GLboolean _Enabled
; /**< Enabled and stencil buffer present */
1079 GLboolean _TestTwoSide
;
1080 GLubyte _BackFace
; /**< Current back stencil state (1 or 2) */
1081 GLenum Function
[3]; /**< Stencil function */
1082 GLenum FailFunc
[3]; /**< Fail function */
1083 GLenum ZPassFunc
[3]; /**< Depth buffer pass function */
1084 GLenum ZFailFunc
[3]; /**< Depth buffer fail function */
1085 GLint Ref
[3]; /**< Reference value */
1086 GLuint ValueMask
[3]; /**< Value mask */
1087 GLuint WriteMask
[3]; /**< Write mask */
1088 GLuint Clear
; /**< Clear value */
1093 * An index for each type of texture object. These correspond to the GL
1094 * texture target enums, such as GL_TEXTURE_2D, GL_TEXTURE_CUBE_MAP, etc.
1095 * Note: the order is from highest priority to lowest priority.
1099 TEXTURE_2D_ARRAY_INDEX
,
1100 TEXTURE_1D_ARRAY_INDEX
,
1111 * Bit flags for each type of texture object
1112 * Used for Texture.Unit[]._ReallyEnabled flags.
1115 #define TEXTURE_2D_ARRAY_BIT (1 << TEXTURE_2D_ARRAY_INDEX)
1116 #define TEXTURE_1D_ARRAY_BIT (1 << TEXTURE_1D_ARRAY_INDEX)
1117 #define TEXTURE_CUBE_BIT (1 << TEXTURE_CUBE_INDEX)
1118 #define TEXTURE_3D_BIT (1 << TEXTURE_3D_INDEX)
1119 #define TEXTURE_RECT_BIT (1 << TEXTURE_RECT_INDEX)
1120 #define TEXTURE_2D_BIT (1 << TEXTURE_2D_INDEX)
1121 #define TEXTURE_1D_BIT (1 << TEXTURE_1D_INDEX)
1126 * TexGenEnabled flags.
1133 #define STR_BITS (S_BIT | T_BIT | R_BIT)
1138 * Bit flag versions of the corresponding GL_ constants.
1141 #define TEXGEN_SPHERE_MAP 0x1
1142 #define TEXGEN_OBJ_LINEAR 0x2
1143 #define TEXGEN_EYE_LINEAR 0x4
1144 #define TEXGEN_REFLECTION_MAP_NV 0x8
1145 #define TEXGEN_NORMAL_MAP_NV 0x10
1147 #define TEXGEN_NEED_NORMALS (TEXGEN_SPHERE_MAP | \
1148 TEXGEN_REFLECTION_MAP_NV | \
1149 TEXGEN_NORMAL_MAP_NV)
1150 #define TEXGEN_NEED_EYE_COORD (TEXGEN_SPHERE_MAP | \
1151 TEXGEN_REFLECTION_MAP_NV | \
1152 TEXGEN_NORMAL_MAP_NV | \
1158 /** Tex-gen enabled for texture unit? */
1159 #define ENABLE_TEXGEN(unit) (1 << (unit))
1161 /** Non-identity texture matrix for texture unit? */
1162 #define ENABLE_TEXMAT(unit) (1 << (unit))
1166 * Texel fetch function prototype. We use texel fetch functions to
1167 * extract RGBA, color indexes and depth components out of 1D, 2D and 3D
1168 * texture images. These functions help to isolate us from the gritty
1169 * details of all the various texture image encodings.
1171 * \param texImage texture image.
1172 * \param col texel column.
1173 * \param row texel row.
1174 * \param img texel image level/layer.
1175 * \param texelOut output texel (up to 4 GLchans)
1177 typedef void (*FetchTexelFuncC
)( const struct gl_texture_image
*texImage
,
1178 GLint col
, GLint row
, GLint img
,
1182 * As above, but returns floats.
1183 * Used for depth component images and for upcoming signed/float
1186 typedef void (*FetchTexelFuncF
)( const struct gl_texture_image
*texImage
,
1187 GLint col
, GLint row
, GLint img
,
1188 GLfloat
*texelOut
);
1191 typedef void (*StoreTexelFunc
)(struct gl_texture_image
*texImage
,
1192 GLint col
, GLint row
, GLint img
,
1197 * Texture image state. Describes the dimensions of a texture image,
1198 * the texel format and pointers to Texel Fetch functions.
1200 struct gl_texture_image
1202 GLint InternalFormat
; /**< Internal format as given by the user */
1203 GLenum _BaseFormat
; /**< Either GL_RGB, GL_RGBA, GL_ALPHA,
1204 * GL_LUMINANCE, GL_LUMINANCE_ALPHA,
1205 * GL_INTENSITY, GL_COLOR_INDEX,
1206 * GL_DEPTH_COMPONENT or GL_DEPTH_STENCIL_EXT
1207 * only. Used for choosing TexEnv arithmetic.
1209 GLuint TexFormat
; /**< The actual format: MESA_FORMAT_x */
1211 GLuint Border
; /**< 0 or 1 */
1212 GLuint Width
; /**< = 2^WidthLog2 + 2*Border */
1213 GLuint Height
; /**< = 2^HeightLog2 + 2*Border */
1214 GLuint Depth
; /**< = 2^DepthLog2 + 2*Border */
1215 GLuint Width2
; /**< = Width - 2*Border */
1216 GLuint Height2
; /**< = Height - 2*Border */
1217 GLuint Depth2
; /**< = Depth - 2*Border */
1218 GLuint WidthLog2
; /**< = log2(Width2) */
1219 GLuint HeightLog2
; /**< = log2(Height2) */
1220 GLuint DepthLog2
; /**< = log2(Depth2) */
1221 GLuint MaxLog2
; /**< = MAX(WidthLog2, HeightLog2) */
1222 GLfloat WidthScale
; /**< used for mipmap LOD computation */
1223 GLfloat HeightScale
; /**< used for mipmap LOD computation */
1224 GLfloat DepthScale
; /**< used for mipmap LOD computation */
1225 GLboolean IsClientData
; /**< Data owned by client? */
1226 GLboolean _IsPowerOfTwo
; /**< Are all dimensions powers of two? */
1228 struct gl_texture_object
*TexObject
; /**< Pointer back to parent object */
1230 FetchTexelFuncC FetchTexelc
; /**< GLchan texel fetch function pointer */
1231 FetchTexelFuncF FetchTexelf
; /**< Float texel fetch function pointer */
1233 GLuint RowStride
; /**< Padded width in units of texels */
1234 GLuint
*ImageOffsets
; /**< if 3D texture: array [Depth] of offsets to
1235 each 2D slice in 'Data', in texels */
1236 GLvoid
*Data
; /**< Image data, accessed via FetchTexel() */
1239 * \name For device driver:
1242 void *DriverData
; /**< Arbitrary device driver data */
1248 * Indexes for cube map faces.
1263 * Texture object state. Contains the array of mipmap images, border color,
1264 * wrap modes, filter modes, shadow/texcompare state, and the per-texture
1267 struct gl_texture_object
1269 _glthread_Mutex Mutex
; /**< for thread safety */
1270 GLint RefCount
; /**< reference count */
1271 GLuint Name
; /**< the user-visible texture object ID */
1272 GLenum Target
; /**< GL_TEXTURE_1D, GL_TEXTURE_2D, etc. */
1273 GLfloat Priority
; /**< in [0,1] */
1278 } BorderColor
; /**< Interpreted according to texture format */
1279 GLenum WrapS
; /**< S-axis texture image wrap mode */
1280 GLenum WrapT
; /**< T-axis texture image wrap mode */
1281 GLenum WrapR
; /**< R-axis texture image wrap mode */
1282 GLenum MinFilter
; /**< minification filter */
1283 GLenum MagFilter
; /**< magnification filter */
1284 GLfloat MinLod
; /**< min lambda, OpenGL 1.2 */
1285 GLfloat MaxLod
; /**< max lambda, OpenGL 1.2 */
1286 GLfloat LodBias
; /**< OpenGL 1.4 */
1287 GLint BaseLevel
; /**< min mipmap level, OpenGL 1.2 */
1288 GLint MaxLevel
; /**< max mipmap level, OpenGL 1.2 */
1289 GLfloat MaxAnisotropy
; /**< GL_EXT_texture_filter_anisotropic */
1290 GLenum CompareMode
; /**< GL_ARB_shadow */
1291 GLenum CompareFunc
; /**< GL_ARB_shadow */
1292 GLfloat CompareFailValue
; /**< GL_ARB_shadow_ambient */
1293 GLenum DepthMode
; /**< GL_ARB_depth_texture */
1294 GLint _MaxLevel
; /**< actual max mipmap level (q in the spec) */
1295 GLfloat _MaxLambda
; /**< = _MaxLevel - BaseLevel (q - b in spec) */
1296 GLint CropRect
[4]; /**< GL_OES_draw_texture */
1297 GLenum Swizzle
[4]; /**< GL_EXT_texture_swizzle */
1298 GLuint _Swizzle
; /**< same as Swizzle, but SWIZZLE_* format */
1299 GLboolean GenerateMipmap
; /**< GL_SGIS_generate_mipmap */
1300 GLboolean _Complete
; /**< Is texture object complete? */
1301 GLboolean _RenderToTexture
; /**< Any rendering to this texture? */
1302 GLboolean Purgeable
; /**< Is the buffer purgeable under memory pressure? */
1304 /** Actual texture images, indexed by [cube face] and [mipmap level] */
1305 struct gl_texture_image
*Image
[MAX_FACES
][MAX_TEXTURE_LEVELS
];
1307 /** GL_EXT_paletted_texture */
1308 struct gl_color_table Palette
;
1311 * \name For device driver.
1312 * Note: instead of attaching driver data to this pointer, it's preferable
1313 * to instead use this struct as a base class for your own texture object
1314 * class. Driver->NewTextureObject() can be used to implement the
1317 void *DriverData
; /**< Arbitrary device driver data */
1321 /** Up to four combiner sources are possible with GL_NV_texture_env_combine4 */
1322 #define MAX_COMBINER_TERMS 4
1326 * Texture combine environment state.
1328 struct gl_tex_env_combine_state
1330 GLenum ModeRGB
; /**< GL_REPLACE, GL_DECAL, GL_ADD, etc. */
1331 GLenum ModeA
; /**< GL_REPLACE, GL_DECAL, GL_ADD, etc. */
1332 /** Source terms: GL_PRIMARY_COLOR, GL_TEXTURE, etc */
1333 GLenum SourceRGB
[MAX_COMBINER_TERMS
];
1334 GLenum SourceA
[MAX_COMBINER_TERMS
];
1335 /** Source operands: GL_SRC_COLOR, GL_ONE_MINUS_SRC_COLOR, etc */
1336 GLenum OperandRGB
[MAX_COMBINER_TERMS
];
1337 GLenum OperandA
[MAX_COMBINER_TERMS
];
1338 GLuint ScaleShiftRGB
; /**< 0, 1 or 2 */
1339 GLuint ScaleShiftA
; /**< 0, 1 or 2 */
1340 GLuint _NumArgsRGB
; /**< Number of inputs used for the RGB combiner */
1341 GLuint _NumArgsA
; /**< Number of inputs used for the A combiner */
1346 * Texture coord generation state.
1350 GLenum Mode
; /**< GL_EYE_LINEAR, GL_SPHERE_MAP, etc */
1351 GLbitfield _ModeBit
; /**< TEXGEN_x bit corresponding to Mode */
1352 GLfloat ObjectPlane
[4];
1353 GLfloat EyePlane
[4];
1358 * Texture unit state. Contains enable flags, texture environment/function/
1359 * combiners, texgen state, pointers to current texture objects and
1360 * post-filter color tables.
1362 struct gl_texture_unit
1364 GLbitfield Enabled
; /**< bitmask of TEXTURE_*_BIT flags */
1365 GLbitfield _ReallyEnabled
; /**< 0 or exactly one of TEXTURE_*_BIT flags */
1367 GLenum EnvMode
; /**< GL_MODULATE, GL_DECAL, GL_BLEND, etc. */
1368 GLfloat EnvColor
[4];
1370 struct gl_texgen GenS
;
1371 struct gl_texgen GenT
;
1372 struct gl_texgen GenR
;
1373 struct gl_texgen GenQ
;
1374 GLbitfield TexGenEnabled
; /**< Bitwise-OR of [STRQ]_BIT values */
1375 GLbitfield _GenFlags
; /**< Bitwise-OR of Gen[STRQ]._ModeBit */
1377 GLfloat LodBias
; /**< for biasing mipmap levels */
1379 GLfloat RotMatrix
[4]; /* 2x2 matrix */
1382 * \name GL_EXT_texture_env_combine
1384 struct gl_tex_env_combine_state Combine
;
1387 * Derived state based on \c EnvMode and the \c BaseFormat of the
1388 * currently enabled texture.
1390 struct gl_tex_env_combine_state _EnvMode
;
1393 * Currently enabled combiner state. This will point to either
1394 * \c Combine or \c _EnvMode.
1396 struct gl_tex_env_combine_state
*_CurrentCombine
;
1398 /** Current texture object pointers */
1399 struct gl_texture_object
*CurrentTex
[NUM_TEXTURE_TARGETS
];
1401 /** Points to highest priority, complete and enabled texture object */
1402 struct gl_texture_object
*_Current
;
1404 /** GL_SGI_texture_color_table */
1406 struct gl_color_table ColorTable
;
1407 struct gl_color_table ProxyColorTable
;
1408 GLboolean ColorTableEnabled
;
1414 * Texture attribute group (GL_TEXTURE_BIT).
1416 struct gl_texture_attrib
1418 GLuint CurrentUnit
; /**< GL_ACTIVE_TEXTURE */
1419 struct gl_texture_unit Unit
[MAX_COMBINED_TEXTURE_IMAGE_UNITS
];
1421 struct gl_texture_object
*ProxyTex
[NUM_TEXTURE_TARGETS
];
1423 /** GL_ARB_seamless_cubemap */
1424 GLboolean CubeMapSeamless
;
1426 /** GL_EXT_shared_texture_palette */
1427 GLboolean SharedPalette
;
1428 struct gl_color_table Palette
;
1430 /** Texture units/samplers used by vertex or fragment texturing */
1431 GLbitfield _EnabledUnits
;
1433 /** Texture coord units/sets used for fragment texturing */
1434 GLbitfield _EnabledCoordUnits
;
1436 /** Texture coord units that have texgen enabled */
1437 GLbitfield _TexGenEnabled
;
1439 /** Texture coord units that have non-identity matrices */
1440 GLbitfield _TexMatEnabled
;
1442 /** Bitwise-OR of all Texture.Unit[i]._GenFlags */
1443 GLbitfield _GenFlags
;
1448 * Transformation attribute group (GL_TRANSFORM_BIT).
1450 struct gl_transform_attrib
1452 GLenum MatrixMode
; /**< Matrix mode */
1453 GLfloat EyeUserPlane
[MAX_CLIP_PLANES
][4]; /**< User clip planes */
1454 GLfloat _ClipUserPlane
[MAX_CLIP_PLANES
][4]; /**< derived */
1455 GLbitfield ClipPlanesEnabled
; /**< on/off bitmask */
1456 GLboolean Normalize
; /**< Normalize all normals? */
1457 GLboolean RescaleNormals
; /**< GL_EXT_rescale_normal */
1458 GLboolean RasterPositionUnclipped
; /**< GL_IBM_rasterpos_clip */
1459 GLboolean DepthClamp
; /**< GL_ARB_depth_clamp */
1461 GLfloat CullEyePos
[4];
1462 GLfloat CullObjPos
[4];
1467 * Viewport attribute group (GL_VIEWPORT_BIT).
1469 struct gl_viewport_attrib
1471 GLint X
, Y
; /**< position */
1472 GLsizei Width
, Height
; /**< size */
1473 GLfloat Near
, Far
; /**< Depth buffer range */
1474 GLmatrix _WindowMap
; /**< Mapping transformation as a matrix. */
1479 * GL_ARB_vertex/pixel_buffer_object buffer object
1481 struct gl_buffer_object
1483 _glthread_Mutex Mutex
;
1486 GLenum Usage
; /**< GL_STREAM_DRAW_ARB, GL_STREAM_READ_ARB, etc. */
1487 GLsizeiptrARB Size
; /**< Size of buffer storage in bytes */
1488 GLubyte
*Data
; /**< Location of storage either in RAM or VRAM. */
1489 /** Fields describing a mapped buffer */
1491 GLbitfield AccessFlags
; /**< Mask of GL_MAP_x_BIT flags */
1492 GLvoid
*Pointer
; /**< User-space address of mapping */
1493 GLintptr Offset
; /**< Mapped offset */
1494 GLsizeiptr Length
; /**< Mapped length */
1496 GLboolean Written
; /**< Ever written to? (for debugging) */
1497 GLboolean Purgeable
; /**< Is the buffer purgeable under memory pressure? */
1502 * Client pixel packing/unpacking attributes
1504 struct gl_pixelstore_attrib
1512 GLboolean SwapBytes
;
1514 GLboolean ClientStorage
; /**< GL_APPLE_client_storage */
1515 GLboolean Invert
; /**< GL_MESA_pack_invert */
1516 struct gl_buffer_object
*BufferObj
; /**< GL_ARB_pixel_buffer_object */
1521 * Client vertex array attributes
1523 struct gl_client_array
1525 GLint Size
; /**< components per element (1,2,3,4) */
1526 GLenum Type
; /**< datatype: GL_FLOAT, GL_INT, etc */
1527 GLenum Format
; /**< default: GL_RGBA, but may be GL_BGRA */
1528 GLsizei Stride
; /**< user-specified stride */
1529 GLsizei StrideB
; /**< actual stride in bytes */
1530 const GLubyte
*Ptr
; /**< Points to array data */
1531 GLboolean Enabled
; /**< Enabled flag is a boolean */
1532 GLboolean Normalized
; /**< GL_ARB_vertex_program */
1533 GLuint _ElementSize
; /**< size of each element in bytes */
1535 struct gl_buffer_object
*BufferObj
;/**< GL_ARB_vertex_buffer_object */
1536 GLuint _MaxElement
; /**< max element index into array buffer + 1 */
1541 * Collection of vertex arrays. Defined by the GL_APPLE_vertex_array_object
1542 * extension, but a nice encapsulation in any case.
1544 struct gl_array_object
1546 /** Name of the array object as received from glGenVertexArrayAPPLE. */
1550 _glthread_Mutex Mutex
;
1551 GLboolean VBOonly
; /**< require all arrays to live in VBOs? */
1553 /** Conventional vertex arrays */
1555 struct gl_client_array Vertex
;
1556 struct gl_client_array Weight
;
1557 struct gl_client_array Normal
;
1558 struct gl_client_array Color
;
1559 struct gl_client_array SecondaryColor
;
1560 struct gl_client_array FogCoord
;
1561 struct gl_client_array Index
;
1562 struct gl_client_array EdgeFlag
;
1563 struct gl_client_array TexCoord
[MAX_TEXTURE_COORD_UNITS
];
1564 struct gl_client_array PointSize
;
1568 * Generic arrays for vertex programs/shaders.
1569 * For NV vertex programs, these attributes alias and take priority
1570 * over the conventional attribs above. For ARB vertex programs and
1571 * GLSL vertex shaders, these attributes are separate.
1573 struct gl_client_array VertexAttrib
[MAX_VERTEX_GENERIC_ATTRIBS
];
1575 /** Mask of _NEW_ARRAY_* values indicating which arrays are enabled */
1576 GLbitfield _Enabled
;
1579 * Min of all enabled arrays' _MaxElement. When arrays reside inside VBOs
1580 * we can determine the max legal (in bounds) glDrawElements array index.
1587 * Vertex array state
1589 struct gl_array_attrib
1591 /** Currently bound array object. See _mesa_BindVertexArrayAPPLE() */
1592 struct gl_array_object
*ArrayObj
;
1594 /** The default vertex array object */
1595 struct gl_array_object
*DefaultArrayObj
;
1597 /** Array objects (GL_ARB/APPLE_vertex_array_object) */
1598 struct _mesa_HashTable
*Objects
;
1600 GLint ActiveTexture
; /**< Client Active Texture */
1601 GLuint LockFirst
; /**< GL_EXT_compiled_vertex_array */
1602 GLuint LockCount
; /**< GL_EXT_compiled_vertex_array */
1604 /** GL 3.1 (slightly different from GL_NV_primitive_restart) */
1605 GLboolean PrimitiveRestart
;
1606 GLuint RestartIndex
;
1608 GLbitfield NewState
; /**< mask of _NEW_ARRAY_* values */
1610 /* GL_ARB_vertex_buffer_object */
1611 struct gl_buffer_object
*ArrayBufferObj
;
1612 struct gl_buffer_object
*ElementArrayBufferObj
;
1617 * Feedback buffer state
1622 GLbitfield _Mask
; /**< FB_* bits */
1630 * Selection buffer state
1634 GLuint
*Buffer
; /**< selection buffer */
1635 GLuint BufferSize
; /**< size of the selection buffer */
1636 GLuint BufferCount
; /**< number of values in the selection buffer */
1637 GLuint Hits
; /**< number of records in the selection buffer */
1638 GLuint NameStackDepth
; /**< name stack depth */
1639 GLuint NameStack
[MAX_NAME_STACK_DEPTH
]; /**< name stack */
1640 GLboolean HitFlag
; /**< hit flag */
1641 GLfloat HitMinZ
; /**< minimum hit depth */
1642 GLfloat HitMaxZ
; /**< maximum hit depth */
1647 * 1-D Evaluator control points
1651 GLuint Order
; /**< Number of control points */
1652 GLfloat u1
, u2
, du
; /**< u1, u2, 1.0/(u2-u1) */
1653 GLfloat
*Points
; /**< Points to contiguous control points */
1658 * 2-D Evaluator control points
1662 GLuint Uorder
; /**< Number of control points in U dimension */
1663 GLuint Vorder
; /**< Number of control points in V dimension */
1666 GLfloat
*Points
; /**< Points to contiguous control points */
1671 * All evaluator control point state
1673 struct gl_evaluators
1679 struct gl_1d_map Map1Vertex3
;
1680 struct gl_1d_map Map1Vertex4
;
1681 struct gl_1d_map Map1Index
;
1682 struct gl_1d_map Map1Color4
;
1683 struct gl_1d_map Map1Normal
;
1684 struct gl_1d_map Map1Texture1
;
1685 struct gl_1d_map Map1Texture2
;
1686 struct gl_1d_map Map1Texture3
;
1687 struct gl_1d_map Map1Texture4
;
1688 struct gl_1d_map Map1Attrib
[16]; /**< GL_NV_vertex_program */
1695 struct gl_2d_map Map2Vertex3
;
1696 struct gl_2d_map Map2Vertex4
;
1697 struct gl_2d_map Map2Index
;
1698 struct gl_2d_map Map2Color4
;
1699 struct gl_2d_map Map2Normal
;
1700 struct gl_2d_map Map2Texture1
;
1701 struct gl_2d_map Map2Texture2
;
1702 struct gl_2d_map Map2Texture3
;
1703 struct gl_2d_map Map2Texture4
;
1704 struct gl_2d_map Map2Attrib
[16]; /**< GL_NV_vertex_program */
1710 * Names of the various vertex/fragment program register files, etc.
1712 * NOTE: first four tokens must fit into 2 bits (see t_vb_arbprogram.c)
1713 * All values should fit in a 4-bit field.
1715 * NOTE: PROGRAM_ENV_PARAM, PROGRAM_STATE_VAR, PROGRAM_NAMED_PARAM,
1716 * PROGRAM_CONSTANT, and PROGRAM_UNIFORM can all be considered to
1717 * be "uniform" variables since they can only be set outside glBegin/End.
1718 * They're also all stored in the same Parameters array.
1722 PROGRAM_TEMPORARY
, /**< machine->Temporary[] */
1723 PROGRAM_INPUT
, /**< machine->Inputs[] */
1724 PROGRAM_OUTPUT
, /**< machine->Outputs[] */
1725 PROGRAM_VARYING
, /**< machine->Inputs[]/Outputs[] */
1726 PROGRAM_LOCAL_PARAM
, /**< gl_program->LocalParams[] */
1727 PROGRAM_ENV_PARAM
, /**< gl_program->Parameters[] */
1728 PROGRAM_STATE_VAR
, /**< gl_program->Parameters[] */
1729 PROGRAM_NAMED_PARAM
, /**< gl_program->Parameters[] */
1730 PROGRAM_CONSTANT
, /**< gl_program->Parameters[] */
1731 PROGRAM_UNIFORM
, /**< gl_program->Parameters[] */
1732 PROGRAM_WRITE_ONLY
, /**< A dummy, write-only register */
1733 PROGRAM_ADDRESS
, /**< machine->AddressReg */
1734 PROGRAM_SAMPLER
, /**< for shader samplers, compile-time only */
1735 PROGRAM_UNDEFINED
, /**< Invalid/TBD value */
1740 /** Vertex and fragment instructions */
1741 struct prog_instruction
;
1742 struct gl_program_parameter_list
;
1743 struct gl_uniform_list
;
1747 * Base class for any kind of program object
1752 GLubyte
*String
; /**< Null-terminated program text */
1754 GLenum Target
; /**< GL_VERTEX/FRAGMENT_PROGRAM_ARB, GL_FRAGMENT_PROGRAM_NV */
1755 GLenum Format
; /**< String encoding format */
1758 struct prog_instruction
*Instructions
;
1760 GLbitfield InputsRead
; /**< Bitmask of which input regs are read */
1761 GLbitfield64 OutputsWritten
; /**< Bitmask of which output regs are written */
1762 GLbitfield InputFlags
[MAX_PROGRAM_INPUTS
]; /**< PROG_PARAM_BIT_x flags */
1763 GLbitfield OutputFlags
[MAX_PROGRAM_OUTPUTS
]; /**< PROG_PARAM_BIT_x flags */
1764 GLbitfield TexturesUsed
[MAX_TEXTURE_UNITS
]; /**< TEXTURE_x_BIT bitmask */
1765 GLbitfield SamplersUsed
; /**< Bitfield of which samplers are used */
1766 GLbitfield ShadowSamplers
; /**< Texture units used for shadow sampling. */
1769 /** Named parameters, constants, etc. from program text */
1770 struct gl_program_parameter_list
*Parameters
;
1771 /** Numbered local parameters */
1772 GLfloat LocalParams
[MAX_PROGRAM_LOCAL_PARAMS
][4];
1774 /** Vertex/fragment shader varying vars */
1775 struct gl_program_parameter_list
*Varying
;
1776 /** Vertex program user-defined attributes */
1777 struct gl_program_parameter_list
*Attributes
;
1779 /** Map from sampler unit to texture unit (set by glUniform1i()) */
1780 GLubyte SamplerUnits
[MAX_SAMPLERS
];
1781 /** Which texture target is being sampled (TEXTURE_1D/2D/3D/etc_INDEX) */
1782 gl_texture_index SamplerTargets
[MAX_SAMPLERS
];
1784 /** Bitmask of which register files are read/written with indirect
1785 * addressing. Mask of (1 << PROGRAM_x) bits.
1787 GLbitfield IndirectRegisterFiles
;
1789 /** Logical counts */
1791 GLuint NumInstructions
;
1792 GLuint NumTemporaries
;
1793 GLuint NumParameters
;
1794 GLuint NumAttributes
;
1795 GLuint NumAddressRegs
;
1796 GLuint NumAluInstructions
;
1797 GLuint NumTexInstructions
;
1798 GLuint NumTexIndirections
;
1800 /** Native, actual h/w counts */
1802 GLuint NumNativeInstructions
;
1803 GLuint NumNativeTemporaries
;
1804 GLuint NumNativeParameters
;
1805 GLuint NumNativeAttributes
;
1806 GLuint NumNativeAddressRegs
;
1807 GLuint NumNativeAluInstructions
;
1808 GLuint NumNativeTexInstructions
;
1809 GLuint NumNativeTexIndirections
;
1814 /** Vertex program object */
1815 struct gl_vertex_program
1817 struct gl_program Base
; /**< base class */
1818 GLboolean IsNVProgram
; /**< is this a GL_NV_vertex_program program? */
1819 GLboolean IsPositionInvariant
;
1823 /** Geometry program object */
1824 struct gl_geometry_program
1826 struct gl_program Base
; /**< base class */
1829 GLenum InputType
; /**< GL_POINTS, GL_LINES, GL_LINES_ADJACENCY_ARB,
1830 GL_TRIANGLES, or GL_TRIANGLES_ADJACENCY_ARB */
1831 GLenum OutputType
; /**< GL_POINTS, GL_LINE_STRIP or GL_TRIANGLE_STRIP */
1835 /** Fragment program object */
1836 struct gl_fragment_program
1838 struct gl_program Base
; /**< base class */
1840 GLboolean UsesKill
; /**< shader uses KIL instruction */
1841 GLboolean OriginUpperLeft
;
1842 GLboolean PixelCenterInteger
;
1847 * State common to vertex and fragment programs.
1849 struct gl_program_state
1851 GLint ErrorPos
; /* GL_PROGRAM_ERROR_POSITION_ARB/NV */
1852 const char *ErrorString
; /* GL_PROGRAM_ERROR_STRING_ARB/NV */
1857 * Context state for vertex programs.
1859 struct gl_vertex_program_state
1861 GLboolean Enabled
; /**< User-set GL_VERTEX_PROGRAM_ARB/NV flag */
1862 GLboolean _Enabled
; /**< Enabled and _valid_ user program? */
1863 GLboolean PointSizeEnabled
; /**< GL_VERTEX_PROGRAM_POINT_SIZE_ARB/NV */
1864 GLboolean TwoSideEnabled
; /**< GL_VERTEX_PROGRAM_TWO_SIDE_ARB/NV */
1865 struct gl_vertex_program
*Current
; /**< User-bound vertex program */
1867 /** Currently enabled and valid vertex program (including internal
1868 * programs, user-defined vertex programs and GLSL vertex shaders).
1869 * This is the program we must use when rendering.
1871 struct gl_vertex_program
*_Current
;
1873 GLfloat Parameters
[MAX_PROGRAM_ENV_PARAMS
][4]; /**< Env params */
1875 /* For GL_NV_vertex_program only: */
1876 GLenum TrackMatrix
[MAX_PROGRAM_ENV_PARAMS
/ 4];
1877 GLenum TrackMatrixTransform
[MAX_PROGRAM_ENV_PARAMS
/ 4];
1879 /** Should fixed-function T&L be implemented with a vertex prog? */
1880 GLboolean _MaintainTnlProgram
;
1882 /** Program to emulate fixed-function T&L (see above) */
1883 struct gl_vertex_program
*_TnlProgram
;
1885 /** Cache of fixed-function programs */
1886 struct gl_program_cache
*Cache
;
1888 GLboolean _Overriden
;
1893 * Context state for geometry programs.
1895 struct gl_geometry_program_state
1897 GLboolean Enabled
; /**< GL_ARB_GEOMETRY_SHADER4 */
1898 GLboolean _Enabled
; /**< Enabled and valid program? */
1899 struct gl_geometry_program
*Current
; /**< user-bound geometry program */
1901 /** Currently enabled and valid program (including internal programs
1902 * and compiled shader programs).
1904 struct gl_geometry_program
*_Current
;
1906 GLfloat Parameters
[MAX_PROGRAM_ENV_PARAMS
][4]; /**< Env params */
1908 /** Cache of fixed-function programs */
1909 struct gl_program_cache
*Cache
;
1913 * Context state for fragment programs.
1915 struct gl_fragment_program_state
1917 GLboolean Enabled
; /**< User-set fragment program enable flag */
1918 GLboolean _Enabled
; /**< Enabled and _valid_ user program? */
1919 struct gl_fragment_program
*Current
; /**< User-bound fragment program */
1921 /** Currently enabled and valid fragment program (including internal
1922 * programs, user-defined fragment programs and GLSL fragment shaders).
1923 * This is the program we must use when rendering.
1925 struct gl_fragment_program
*_Current
;
1927 GLfloat Parameters
[MAX_PROGRAM_ENV_PARAMS
][4]; /**< Env params */
1929 /** Should fixed-function texturing be implemented with a fragment prog? */
1930 GLboolean _MaintainTexEnvProgram
;
1932 /** Program to emulate fixed-function texture env/combine (see above) */
1933 struct gl_fragment_program
*_TexEnvProgram
;
1935 /** Cache of fixed-function programs */
1936 struct gl_program_cache
*Cache
;
1941 * ATI_fragment_shader runtime state
1943 #define ATI_FS_INPUT_PRIMARY 0
1944 #define ATI_FS_INPUT_SECONDARY 1
1946 struct atifs_instruction
;
1947 struct atifs_setupinst
;
1950 * ATI fragment shader
1952 struct ati_fragment_shader
1956 struct atifs_instruction
*Instructions
[2];
1957 struct atifs_setupinst
*SetupInst
[2];
1958 GLfloat Constants
[8][4];
1959 GLbitfield LocalConstDef
; /**< Indicates which constants have been set */
1960 GLubyte numArithInstr
[2];
1961 GLubyte regsAssigned
[2];
1962 GLubyte NumPasses
; /**< 1 or 2 */
1964 GLubyte last_optype
;
1965 GLboolean interpinp1
;
1971 * Context state for GL_ATI_fragment_shader
1973 struct gl_ati_fragment_shader_state
1976 GLboolean _Enabled
; /**< enabled and valid shader? */
1977 GLboolean Compiling
;
1978 GLfloat GlobalConstants
[8][4];
1979 struct ati_fragment_shader
*Current
;
1984 * Occlusion/timer query object.
1986 struct gl_query_object
1988 GLenum Target
; /**< The query target, when active */
1989 GLuint Id
; /**< hash table ID/name */
1990 GLuint64EXT Result
; /**< the counter */
1991 GLboolean Active
; /**< inside Begin/EndQuery */
1992 GLboolean Ready
; /**< result is ready? */
1997 * Context state for query objects.
1999 struct gl_query_state
2001 struct _mesa_HashTable
*QueryObjects
;
2002 struct gl_query_object
*CurrentOcclusionObject
; /* GL_ARB_occlusion_query */
2003 struct gl_query_object
*CurrentTimerObject
; /* GL_EXT_timer_query */
2005 /** GL_NV_conditional_render */
2006 struct gl_query_object
*CondRenderQuery
;
2008 /** GL_EXT_transform_feedback */
2009 struct gl_query_object
*PrimitivesGenerated
;
2010 struct gl_query_object
*PrimitivesWritten
;
2012 /** GL_ARB_timer_query */
2013 struct gl_query_object
*TimeElapsed
;
2015 GLenum CondRenderMode
;
2019 /** Sync object state */
2020 struct gl_sync_object
{
2021 struct simple_node link
;
2022 GLenum Type
; /**< GL_SYNC_FENCE */
2023 GLuint Name
; /**< Fence name */
2024 GLint RefCount
; /**< Reference count */
2025 GLboolean DeletePending
; /**< Object was deleted while there were still
2026 * live references (e.g., sync not yet finished)
2028 GLenum SyncCondition
;
2029 GLbitfield Flags
; /**< Flags passed to glFenceSync */
2030 GLuint StatusFlag
:1; /**< Has the sync object been signaled? */
2034 /** Set by #pragma directives */
2035 struct gl_sl_pragmas
2037 GLboolean IgnoreOptimize
; /**< ignore #pragma optimize(on/off) ? */
2038 GLboolean IgnoreDebug
; /**< ignore #pragma debug(on/off) ? */
2039 GLboolean Optimize
; /**< defaults on */
2040 GLboolean Debug
; /**< defaults off */
2045 * A GLSL vertex or fragment shader object.
2049 GLenum Type
; /**< GL_FRAGMENT_SHADER || GL_VERTEX_SHADER || GL_GEOMETRY_SHADER_ARB (first field!) */
2050 GLuint Name
; /**< AKA the handle */
2051 GLint RefCount
; /**< Reference count */
2052 GLboolean DeletePending
;
2053 GLboolean CompileStatus
;
2054 GLboolean Main
; /**< shader defines main() */
2055 GLboolean UnresolvedRefs
;
2056 const GLchar
*Source
; /**< Source code string */
2057 GLuint SourceChecksum
; /**< for debug/logging purposes */
2058 struct gl_program
*Program
; /**< Post-compile assembly code */
2060 struct gl_sl_pragmas Pragmas
;
2062 unsigned Version
; /**< GLSL version used for linking */
2064 struct exec_list
*ir
;
2065 struct glsl_symbol_table
*symbols
;
2067 /** Shaders containing built-in functions that are used for linking. */
2068 struct gl_shader
*builtins_to_link
[16];
2069 unsigned num_builtins_to_link
;
2074 * A GLSL program object.
2075 * Basically a linked collection of vertex and fragment shaders.
2077 struct gl_shader_program
2079 GLenum Type
; /**< Always GL_SHADER_PROGRAM (internal token) */
2080 GLuint Name
; /**< aka handle or ID */
2081 GLint RefCount
; /**< Reference count */
2082 GLboolean DeletePending
;
2084 GLuint NumShaders
; /**< number of attached shaders */
2085 struct gl_shader
**Shaders
; /**< List of attached the shaders */
2087 /** User-defined attribute bindings (glBindAttribLocation) */
2088 struct gl_program_parameter_list
*Attributes
;
2090 /** Transform feedback varyings */
2094 GLchar
**VaryingNames
; /**< Array [NumVarying] of char * */
2095 } TransformFeedback
;
2097 /** Geometry shader state - copied into gl_geometry_program at link time */
2100 GLenum InputType
; /**< GL_POINTS, GL_LINES, GL_LINES_ADJACENCY_ARB,
2101 GL_TRIANGLES, or GL_TRIANGLES_ADJACENCY_ARB */
2102 GLenum OutputType
; /**< GL_POINTS, GL_LINE_STRIP or GL_TRIANGLE_STRIP */
2105 /* post-link info: */
2106 struct gl_vertex_program
*VertexProgram
; /**< Linked vertex program */
2107 struct gl_fragment_program
*FragmentProgram
; /**< Linked fragment prog */
2108 struct gl_geometry_program
*GeometryProgram
; /**< Linked geometry prog */
2109 struct gl_uniform_list
*Uniforms
;
2110 struct gl_program_parameter_list
*Varying
;
2111 GLboolean LinkStatus
; /**< GL_LINK_STATUS */
2112 GLboolean Validated
;
2113 GLboolean _Used
; /**< Ever used for drawing? */
2116 unsigned Version
; /**< GLSL version used for linking */
2119 * Per-stage shaders resulting from the first stage of linking.
2122 GLuint _NumLinkedShaders
;
2123 struct gl_shader
*_LinkedShaders
[2];
2128 #define GLSL_DUMP 0x1 /**< Dump shaders to stdout */
2129 #define GLSL_LOG 0x2 /**< Write shaders to files */
2130 #define GLSL_OPT 0x4 /**< Force optimizations (override pragmas) */
2131 #define GLSL_NO_OPT 0x8 /**< Force no optimizations (override pragmas) */
2132 #define GLSL_UNIFORMS 0x10 /**< Print glUniform calls */
2133 #define GLSL_NOP_VERT 0x20 /**< Force no-op vertex shaders */
2134 #define GLSL_NOP_FRAG 0x40 /**< Force no-op fragment shaders */
2135 #define GLSL_USE_PROG 0x80 /**< Log glUseProgram calls */
2139 * Context state for GLSL vertex/fragment shaders.
2141 struct gl_shader_state
2143 struct gl_shader_program
*CurrentProgram
; /**< The user-bound program */
2146 GLbitfield Flags
; /**< Mask of GLSL_x flags */
2150 * Compiler options for a single GLSL shaders type
2152 struct gl_shader_compiler_options
2154 /** Driver-selectable options: */
2155 GLboolean EmitCondCodes
; /**< Use condition codes? */
2156 GLboolean EmitNVTempInitialization
; /**< 0-fill NV temp registers */
2158 * Attempts to flatten all ir_if (OPCODE_IF) for GPUs that can't
2159 * support control flow.
2161 GLboolean EmitNoIfs
;
2162 GLboolean EmitNoLoops
;
2163 GLboolean EmitNoFunctions
;
2164 GLboolean EmitNoCont
; /**< Emit CONT opcode? */
2165 GLboolean EmitNoMainReturn
; /**< Emit CONT/RET opcodes? */
2166 GLboolean EmitNoNoise
; /**< Emit NOISE opcodes? */
2169 * \name Forms of indirect addressing the driver cannot do.
2172 GLboolean EmitNoIndirectInput
; /**< No indirect addressing of inputs */
2173 GLboolean EmitNoIndirectOutput
; /**< No indirect addressing of outputs */
2174 GLboolean EmitNoIndirectTemp
; /**< No indirect addressing of temps */
2175 GLboolean EmitNoIndirectUniform
; /**< No indirect addressing of constants */
2178 GLuint MaxUnrollIterations
;
2180 struct gl_sl_pragmas DefaultPragmas
; /**< Default #pragma settings */
2184 * Transform feedback object state
2186 struct gl_transform_feedback_object
2188 GLuint Name
; /**< AKA the object ID */
2190 GLboolean Active
; /**< Is transform feedback enabled? */
2191 GLboolean Paused
; /**< Is transform feedback paused? */
2193 /** The feedback buffers */
2194 GLuint BufferNames
[MAX_FEEDBACK_ATTRIBS
];
2195 struct gl_buffer_object
*Buffers
[MAX_FEEDBACK_ATTRIBS
];
2197 /** Start of feedback data in dest buffer */
2198 GLintptr Offset
[MAX_FEEDBACK_ATTRIBS
];
2199 /** Max data to put into dest buffer (in bytes) */
2200 GLsizeiptr Size
[MAX_FEEDBACK_ATTRIBS
];
2205 * Context state for transform feedback.
2207 struct gl_transform_feedback
2209 GLenum Mode
; /**< GL_POINTS, GL_LINES or GL_TRIANGLES */
2211 GLboolean RasterDiscard
; /**< GL_RASTERIZER_DISCARD */
2213 /** The general binding point (GL_TRANSFORM_FEEDBACK_BUFFER) */
2214 struct gl_buffer_object
*CurrentBuffer
;
2216 /** The table of all transform feedback objects */
2217 struct _mesa_HashTable
*Objects
;
2219 /** The current xform-fb object (GL_TRANSFORM_FEEDBACK_BINDING) */
2220 struct gl_transform_feedback_object
*CurrentObject
;
2222 /** The default xform-fb object (Name==0) */
2223 struct gl_transform_feedback_object
*DefaultObject
;
2229 * State which can be shared by multiple contexts:
2231 struct gl_shared_state
2233 _glthread_Mutex Mutex
; /**< for thread safety */
2234 GLint RefCount
; /**< Reference count */
2235 struct _mesa_HashTable
*DisplayList
; /**< Display lists hash table */
2236 struct _mesa_HashTable
*TexObjects
; /**< Texture objects hash table */
2238 /** Default texture objects (shared by all texture units) */
2239 struct gl_texture_object
*DefaultTex
[NUM_TEXTURE_TARGETS
];
2241 /** Fallback texture used when a bound texture is incomplete */
2242 struct gl_texture_object
*FallbackTex
;
2245 * \name Thread safety and statechange notification for texture
2248 * \todo Improve the granularity of locking.
2251 _glthread_Mutex TexMutex
; /**< texobj thread safety */
2252 GLuint TextureStateStamp
; /**< state notification for shared tex */
2255 /** Default buffer object for vertex arrays that aren't in VBOs */
2256 struct gl_buffer_object
*NullBufferObj
;
2259 * \name Vertex/geometry/fragment programs
2262 struct _mesa_HashTable
*Programs
; /**< All vertex/fragment programs */
2263 struct gl_vertex_program
*DefaultVertexProgram
;
2264 struct gl_fragment_program
*DefaultFragmentProgram
;
2265 struct gl_geometry_program
*DefaultGeometryProgram
;
2268 /* GL_ATI_fragment_shader */
2269 struct _mesa_HashTable
*ATIShaders
;
2270 struct ati_fragment_shader
*DefaultFragmentShader
;
2272 struct _mesa_HashTable
*BufferObjects
;
2274 /** Table of both gl_shader and gl_shader_program objects */
2275 struct _mesa_HashTable
*ShaderObjects
;
2277 /* GL_EXT_framebuffer_object */
2278 struct _mesa_HashTable
*RenderBuffers
;
2279 struct _mesa_HashTable
*FrameBuffers
;
2282 struct simple_node SyncObjects
;
2284 void *DriverData
; /**< Device driver shared state */
2291 * A renderbuffer stores colors or depth values or stencil values.
2292 * A framebuffer object will have a collection of these.
2293 * Data are read/written to the buffer with a handful of Get/Put functions.
2295 * Instances of this object are allocated with the Driver's NewRenderbuffer
2296 * hook. Drivers will likely wrap this class inside a driver-specific
2297 * class to simulate inheritance.
2299 struct gl_renderbuffer
2301 #define RB_MAGIC 0xaabbccdd
2302 int Magic
; /** XXX TEMPORARY DEBUG INFO */
2303 _glthread_Mutex Mutex
; /**< for thread safety */
2304 GLuint ClassID
; /**< Useful for drivers */
2307 GLuint Width
, Height
;
2308 GLboolean Purgeable
; /**< Is the buffer purgeable under memory pressure? */
2310 GLenum InternalFormat
; /**< The user-specified format */
2311 GLenum _BaseFormat
; /**< Either GL_RGB, GL_RGBA, GL_DEPTH_COMPONENT or
2312 GL_STENCIL_INDEX. */
2313 GLuint Format
; /**< The actual format: MESA_FORMAT_x */
2317 GLenum DataType
; /**< Type of values passed to the Get/Put functions */
2318 GLvoid
*Data
; /**< This may not be used by some kinds of RBs */
2320 /* Used to wrap one renderbuffer around another: */
2321 struct gl_renderbuffer
*Wrapped
;
2323 /* Delete this renderbuffer */
2324 void (*Delete
)(struct gl_renderbuffer
*rb
);
2326 /* Allocate new storage for this renderbuffer */
2327 GLboolean (*AllocStorage
)(struct gl_context
*ctx
, struct gl_renderbuffer
*rb
,
2328 GLenum internalFormat
,
2329 GLuint width
, GLuint height
);
2331 /* Lock/Unlock are called before/after calling the Get/Put functions.
2332 * Not sure this is the right place for these yet.
2333 void (*Lock)(struct gl_context *ctx, struct gl_renderbuffer *rb);
2334 void (*Unlock)(struct gl_context *ctx, struct gl_renderbuffer *rb);
2337 /* Return a pointer to the element/pixel at (x,y).
2338 * Should return NULL if the buffer memory can't be directly addressed.
2340 void *(*GetPointer
)(struct gl_context
*ctx
, struct gl_renderbuffer
*rb
,
2343 /* Get/Read a row of values.
2344 * The values will be of format _BaseFormat and type DataType.
2346 void (*GetRow
)(struct gl_context
*ctx
, struct gl_renderbuffer
*rb
, GLuint count
,
2347 GLint x
, GLint y
, void *values
);
2349 /* Get/Read values at arbitrary locations.
2350 * The values will be of format _BaseFormat and type DataType.
2352 void (*GetValues
)(struct gl_context
*ctx
, struct gl_renderbuffer
*rb
, GLuint count
,
2353 const GLint x
[], const GLint y
[], void *values
);
2355 /* Put/Write a row of values.
2356 * The values will be of format _BaseFormat and type DataType.
2358 void (*PutRow
)(struct gl_context
*ctx
, struct gl_renderbuffer
*rb
, GLuint count
,
2359 GLint x
, GLint y
, const void *values
, const GLubyte
*mask
);
2361 /* Put/Write a row of RGB values. This is a special-case routine that's
2362 * only used for RGBA renderbuffers when the source data is GL_RGB. That's
2363 * a common case for glDrawPixels and some triangle routines.
2364 * The values will be of format GL_RGB and type DataType.
2366 void (*PutRowRGB
)(struct gl_context
*ctx
, struct gl_renderbuffer
*rb
, GLuint count
,
2367 GLint x
, GLint y
, const void *values
, const GLubyte
*mask
);
2370 /* Put/Write a row of identical values.
2371 * The values will be of format _BaseFormat and type DataType.
2373 void (*PutMonoRow
)(struct gl_context
*ctx
, struct gl_renderbuffer
*rb
, GLuint count
,
2374 GLint x
, GLint y
, const void *value
, const GLubyte
*mask
);
2376 /* Put/Write values at arbitrary locations.
2377 * The values will be of format _BaseFormat and type DataType.
2379 void (*PutValues
)(struct gl_context
*ctx
, struct gl_renderbuffer
*rb
, GLuint count
,
2380 const GLint x
[], const GLint y
[], const void *values
,
2381 const GLubyte
*mask
);
2382 /* Put/Write identical values at arbitrary locations.
2383 * The values will be of format _BaseFormat and type DataType.
2385 void (*PutMonoValues
)(struct gl_context
*ctx
, struct gl_renderbuffer
*rb
,
2386 GLuint count
, const GLint x
[], const GLint y
[],
2387 const void *value
, const GLubyte
*mask
);
2392 * A renderbuffer attachment points to either a texture object (and specifies
2393 * a mipmap level, cube face or 3D texture slice) or points to a renderbuffer.
2395 struct gl_renderbuffer_attachment
2397 GLenum Type
; /**< \c GL_NONE or \c GL_TEXTURE or \c GL_RENDERBUFFER_EXT */
2401 * If \c Type is \c GL_RENDERBUFFER_EXT, this stores a pointer to the
2402 * application supplied renderbuffer object.
2404 struct gl_renderbuffer
*Renderbuffer
;
2407 * If \c Type is \c GL_TEXTURE, this stores a pointer to the application
2408 * supplied texture object.
2410 struct gl_texture_object
*Texture
;
2411 GLuint TextureLevel
; /**< Attached mipmap level. */
2412 GLuint CubeMapFace
; /**< 0 .. 5, for cube map textures. */
2413 GLuint Zoffset
; /**< Slice for 3D textures, or layer for both 1D
2414 * and 2D array textures */
2419 * A framebuffer is a collection of renderbuffers (color, depth, stencil, etc).
2420 * In C++ terms, think of this as a base class from which device drivers
2421 * will make derived classes.
2423 struct gl_framebuffer
2425 _glthread_Mutex Mutex
; /**< for thread safety */
2427 * If zero, this is a window system framebuffer. If non-zero, this
2428 * is a FBO framebuffer; note that for some devices (i.e. those with
2429 * a natural pixel coordinate system for FBOs that differs from the
2430 * OpenGL/Mesa coordinate system), this means that the viewport,
2431 * polygon face orientation, and polygon stipple will have to be inverted.
2436 GLboolean DeletePending
;
2439 * The framebuffer's visual. Immutable if this is a window system buffer.
2440 * Computed from attachments if user-made FBO.
2442 struct gl_config Visual
;
2444 GLboolean Initialized
;
2446 GLuint Width
, Height
; /**< size of frame buffer in pixels */
2448 /** \name Drawing bounds (Intersection of buffer size and scissor box) */
2450 GLint _Xmin
, _Xmax
; /**< inclusive */
2451 GLint _Ymin
, _Ymax
; /**< exclusive */
2454 /** \name Derived Z buffer stuff */
2456 GLuint _DepthMax
; /**< Max depth buffer value */
2457 GLfloat _DepthMaxF
; /**< Float max depth buffer value */
2458 GLfloat _MRD
; /**< minimum resolvable difference in Z values */
2461 /** One of the GL_FRAMEBUFFER_(IN)COMPLETE_* tokens */
2464 /** Array of all renderbuffer attachments, indexed by BUFFER_* tokens. */
2465 struct gl_renderbuffer_attachment Attachment
[BUFFER_COUNT
];
2467 /* In unextended OpenGL these vars are part of the GL_COLOR_BUFFER
2468 * attribute group and GL_PIXEL attribute group, respectively.
2470 GLenum ColorDrawBuffer
[MAX_DRAW_BUFFERS
];
2471 GLenum ColorReadBuffer
;
2473 /** Computed from ColorDraw/ReadBuffer above */
2474 GLuint _NumColorDrawBuffers
;
2475 GLint _ColorDrawBufferIndexes
[MAX_DRAW_BUFFERS
]; /**< BUFFER_x or -1 */
2476 GLint _ColorReadBufferIndex
; /* -1 = None */
2477 struct gl_renderbuffer
*_ColorDrawBuffers
[MAX_DRAW_BUFFERS
];
2478 struct gl_renderbuffer
*_ColorReadBuffer
;
2480 /** The Actual depth/stencil buffers to use. May be wrappers around the
2481 * depth/stencil buffers attached above. */
2482 struct gl_renderbuffer
*_DepthBuffer
;
2483 struct gl_renderbuffer
*_StencilBuffer
;
2485 /** Delete this framebuffer */
2486 void (*Delete
)(struct gl_framebuffer
*fb
);
2491 * Limits for vertex and fragment programs/shaders.
2493 struct gl_program_constants
2495 /* logical limits */
2496 GLuint MaxInstructions
;
2497 GLuint MaxAluInstructions
;
2498 GLuint MaxTexInstructions
;
2499 GLuint MaxTexIndirections
;
2502 GLuint MaxAddressRegs
;
2503 GLuint MaxParameters
;
2504 GLuint MaxLocalParams
;
2505 GLuint MaxEnvParams
;
2506 /* native/hardware limits */
2507 GLuint MaxNativeInstructions
;
2508 GLuint MaxNativeAluInstructions
;
2509 GLuint MaxNativeTexInstructions
;
2510 GLuint MaxNativeTexIndirections
;
2511 GLuint MaxNativeAttribs
;
2512 GLuint MaxNativeTemps
;
2513 GLuint MaxNativeAddressRegs
;
2514 GLuint MaxNativeParameters
;
2516 GLuint MaxUniformComponents
;
2517 /* GL_ARB_geometry_shader4 */
2518 GLuint MaxGeometryTextureImageUnits
;
2519 GLuint MaxGeometryVaryingComponents
;
2520 GLuint MaxVertexVaryingComponents
;
2521 GLuint MaxGeometryUniformComponents
;
2522 GLuint MaxGeometryOutputVertices
;
2523 GLuint MaxGeometryTotalOutputComponents
;
2528 * Constants which may be overridden by device driver during context creation
2529 * but are never changed after that.
2533 GLint MaxTextureLevels
; /**< Max mipmap levels. */
2534 GLint Max3DTextureLevels
; /**< Max mipmap levels for 3D textures */
2535 GLint MaxCubeTextureLevels
; /**< Max mipmap levels for cube textures */
2536 GLint MaxArrayTextureLayers
; /**< Max layers in array textures */
2537 GLint MaxTextureRectSize
; /**< Max rectangle texture size, in pixes */
2538 GLuint MaxTextureCoordUnits
;
2539 GLuint MaxTextureImageUnits
;
2540 GLuint MaxVertexTextureImageUnits
;
2541 GLuint MaxCombinedTextureImageUnits
;
2542 GLuint MaxTextureUnits
; /**< = MIN(CoordUnits, ImageUnits) */
2543 GLfloat MaxTextureMaxAnisotropy
; /**< GL_EXT_texture_filter_anisotropic */
2544 GLfloat MaxTextureLodBias
; /**< GL_EXT_texture_lod_bias */
2546 GLuint MaxArrayLockSize
;
2550 GLfloat MinPointSize
, MaxPointSize
; /**< aliased */
2551 GLfloat MinPointSizeAA
, MaxPointSizeAA
; /**< antialiased */
2552 GLfloat PointSizeGranularity
;
2553 GLfloat MinLineWidth
, MaxLineWidth
; /**< aliased */
2554 GLfloat MinLineWidthAA
, MaxLineWidthAA
; /**< antialiased */
2555 GLfloat LineWidthGranularity
;
2557 GLuint MaxColorTableSize
;
2559 GLuint MaxClipPlanes
;
2561 GLfloat MaxShininess
; /**< GL_NV_light_max_exponent */
2562 GLfloat MaxSpotExponent
; /**< GL_NV_light_max_exponent */
2564 GLuint MaxViewportWidth
, MaxViewportHeight
;
2566 struct gl_program_constants VertexProgram
; /**< GL_ARB_vertex_program */
2567 struct gl_program_constants FragmentProgram
; /**< GL_ARB_fragment_program */
2568 struct gl_program_constants GeometryProgram
; /**< GL_ARB_geometry_shader4 */
2569 GLuint MaxProgramMatrices
;
2570 GLuint MaxProgramMatrixStackDepth
;
2572 /** vertex array / buffer object bounds checking */
2573 GLboolean CheckArrayBounds
;
2575 GLuint MaxDrawBuffers
; /**< GL_ARB_draw_buffers */
2577 GLuint MaxColorAttachments
; /**< GL_EXT_framebuffer_object */
2578 GLuint MaxRenderbufferSize
; /**< GL_EXT_framebuffer_object */
2579 GLuint MaxSamples
; /**< GL_ARB_framebuffer_object */
2581 GLuint MaxVarying
; /**< Number of float[4] varying parameters */
2583 GLuint GLSLVersion
; /**< GLSL version supported (ex: 120 = 1.20) */
2585 /** Which texture units support GL_ATI_envmap_bumpmap as targets */
2586 GLbitfield SupportedBumpUnits
;
2589 * Maximum amount of time, measured in nanseconds, that the server can wait.
2591 GLuint64 MaxServerWaitTimeout
;
2593 /** GL_EXT_provoking_vertex */
2594 GLboolean QuadsFollowProvokingVertexConvention
;
2596 /** OpenGL version 3.0 */
2597 GLbitfield ContextFlags
; /**< Ex: GL_CONTEXT_FLAG_FORWARD_COMPATIBLE_BIT */
2599 /** OpenGL version 3.2 */
2600 GLbitfield ProfileMask
; /**< Mask of CONTEXT_x_PROFILE_BIT */
2602 /** GL_EXT_transform_feedback */
2603 GLuint MaxTransformFeedbackSeparateAttribs
;
2604 GLuint MaxTransformFeedbackSeparateComponents
;
2605 GLuint MaxTransformFeedbackInterleavedComponents
;
2610 * Enable flag for each OpenGL extension. Different device drivers will
2611 * enable different extensions at runtime.
2613 struct gl_extensions
2615 GLboolean dummy
; /* don't remove this! */
2616 GLboolean ARB_blend_func_extended
;
2617 GLboolean ARB_copy_buffer
;
2618 GLboolean ARB_depth_buffer_float
;
2619 GLboolean ARB_depth_clamp
;
2620 GLboolean ARB_depth_texture
;
2621 GLboolean ARB_draw_buffers
;
2622 GLboolean ARB_draw_elements_base_vertex
;
2623 GLboolean ARB_draw_instanced
;
2624 GLboolean ARB_fragment_coord_conventions
;
2625 GLboolean ARB_fragment_program
;
2626 GLboolean ARB_fragment_program_shadow
;
2627 GLboolean ARB_fragment_shader
;
2628 GLboolean ARB_framebuffer_object
;
2629 GLboolean ARB_explicit_attrib_location
;
2630 GLboolean ARB_geometry_shader4
;
2631 GLboolean ARB_half_float_pixel
;
2632 GLboolean ARB_half_float_vertex
;
2633 GLboolean ARB_instanced_arrays
;
2634 GLboolean ARB_map_buffer_range
;
2635 GLboolean ARB_multisample
;
2636 GLboolean ARB_multitexture
;
2637 GLboolean ARB_occlusion_query
;
2638 GLboolean ARB_occlusion_query2
;
2639 GLboolean ARB_point_sprite
;
2640 GLboolean ARB_sampler_objects
;
2641 GLboolean ARB_seamless_cube_map
;
2642 GLboolean ARB_shader_objects
;
2643 GLboolean ARB_shader_stencil_export
;
2644 GLboolean ARB_shading_language_100
;
2645 GLboolean ARB_shadow
;
2646 GLboolean ARB_shadow_ambient
;
2648 GLboolean ARB_texture_border_clamp
;
2649 GLboolean ARB_texture_buffer_object
;
2650 GLboolean ARB_texture_compression
;
2651 GLboolean ARB_texture_compression_rgtc
;
2652 GLboolean ARB_texture_cube_map
;
2653 GLboolean ARB_texture_env_combine
;
2654 GLboolean ARB_texture_env_crossbar
;
2655 GLboolean ARB_texture_env_dot3
;
2656 GLboolean ARB_texture_float
;
2657 GLboolean ARB_texture_mirrored_repeat
;
2658 GLboolean ARB_texture_multisample
;
2659 GLboolean ARB_texture_non_power_of_two
;
2660 GLboolean ARB_texture_rg
;
2661 GLboolean ARB_texture_rgb10_a2ui
;
2662 GLboolean ARB_timer_query
;
2663 GLboolean ARB_transform_feedback2
;
2664 GLboolean ARB_transpose_matrix
;
2665 GLboolean ARB_uniform_buffer_object
;
2666 GLboolean ARB_vertex_array_object
;
2667 GLboolean ARB_vertex_buffer_object
;
2668 GLboolean ARB_vertex_program
;
2669 GLboolean ARB_vertex_shader
;
2670 GLboolean ARB_vertex_type_2_10_10_10_rev
;
2671 GLboolean ARB_window_pos
;
2674 GLboolean EXT_blend_color
;
2675 GLboolean EXT_blend_equation_separate
;
2676 GLboolean EXT_blend_func_separate
;
2677 GLboolean EXT_blend_logic_op
;
2678 GLboolean EXT_blend_minmax
;
2679 GLboolean EXT_blend_subtract
;
2680 GLboolean EXT_clip_volume_hint
;
2681 GLboolean EXT_compiled_vertex_array
;
2682 GLboolean EXT_copy_texture
;
2683 GLboolean EXT_depth_bounds_test
;
2684 GLboolean EXT_draw_buffers2
;
2685 GLboolean EXT_draw_range_elements
;
2686 GLboolean EXT_fog_coord
;
2687 GLboolean EXT_framebuffer_blit
;
2688 GLboolean EXT_framebuffer_multisample
;
2689 GLboolean EXT_framebuffer_object
;
2690 GLboolean EXT_framebuffer_sRGB
;
2691 GLboolean EXT_gpu_program_parameters
;
2692 GLboolean EXT_multi_draw_arrays
;
2693 GLboolean EXT_paletted_texture
;
2694 GLboolean EXT_packed_depth_stencil
;
2695 GLboolean EXT_packed_float
;
2696 GLboolean EXT_packed_pixels
;
2697 GLboolean EXT_pixel_buffer_object
;
2698 GLboolean EXT_point_parameters
;
2699 GLboolean EXT_polygon_offset
;
2700 GLboolean EXT_provoking_vertex
;
2701 GLboolean EXT_rescale_normal
;
2702 GLboolean EXT_shadow_funcs
;
2703 GLboolean EXT_secondary_color
;
2704 GLboolean EXT_separate_specular_color
;
2705 GLboolean EXT_shared_texture_palette
;
2706 GLboolean EXT_stencil_wrap
;
2707 GLboolean EXT_stencil_two_side
;
2708 GLboolean EXT_subtexture
;
2709 GLboolean EXT_texture
;
2710 GLboolean EXT_texture_object
;
2711 GLboolean EXT_texture3D
;
2712 GLboolean EXT_texture_array
;
2713 GLboolean EXT_texture_compression_s3tc
;
2714 GLboolean EXT_texture_env_add
;
2715 GLboolean EXT_texture_env_combine
;
2716 GLboolean EXT_texture_env_dot3
;
2717 GLboolean EXT_texture_filter_anisotropic
;
2718 GLboolean EXT_texture_integer
;
2719 GLboolean EXT_texture_lod_bias
;
2720 GLboolean EXT_texture_mirror_clamp
;
2721 GLboolean EXT_texture_shared_exponent
;
2722 GLboolean EXT_texture_sRGB
;
2723 GLboolean EXT_texture_swizzle
;
2724 GLboolean EXT_transform_feedback
;
2725 GLboolean EXT_timer_query
;
2726 GLboolean EXT_vertex_array
;
2727 GLboolean EXT_vertex_array_bgra
;
2728 GLboolean EXT_vertex_array_set
;
2729 /* vendor extensions */
2730 GLboolean APPLE_client_storage
;
2731 GLboolean APPLE_packed_pixels
;
2732 GLboolean APPLE_vertex_array_object
;
2733 GLboolean APPLE_object_purgeable
;
2734 GLboolean ATI_envmap_bumpmap
;
2735 GLboolean ATI_texture_mirror_once
;
2736 GLboolean ATI_texture_env_combine3
;
2737 GLboolean ATI_fragment_shader
;
2738 GLboolean ATI_separate_stencil
;
2739 GLboolean IBM_rasterpos_clip
;
2740 GLboolean IBM_multimode_draw_arrays
;
2741 GLboolean MESA_pack_invert
;
2742 GLboolean MESA_resize_buffers
;
2743 GLboolean MESA_ycbcr_texture
;
2744 GLboolean MESA_texture_array
;
2745 GLboolean MESA_texture_signed_rgba
;
2746 GLboolean NV_blend_square
;
2747 GLboolean NV_conditional_render
;
2748 GLboolean NV_fragment_program
;
2749 GLboolean NV_fragment_program_option
;
2750 GLboolean NV_light_max_exponent
;
2751 GLboolean NV_point_sprite
;
2752 GLboolean NV_primitive_restart
;
2753 GLboolean NV_texgen_reflection
;
2754 GLboolean NV_texture_env_combine4
;
2755 GLboolean NV_texture_rectangle
;
2756 GLboolean NV_vertex_program
;
2757 GLboolean NV_vertex_program1_1
;
2758 GLboolean OES_read_format
;
2759 GLboolean SGI_texture_color_table
;
2760 GLboolean SGIS_generate_mipmap
;
2761 GLboolean SGIS_texture_edge_clamp
;
2762 GLboolean SGIS_texture_lod
;
2763 GLboolean TDFX_texture_compression_FXT1
;
2765 GLboolean OES_EGL_image
;
2766 GLboolean OES_draw_texture
;
2767 GLboolean EXT_texture_format_BGRA8888
;
2768 /** The extension string */
2769 const GLubyte
*String
;
2770 /** Number of supported extensions */
2776 * A stack of matrices (projection, modelview, color, texture, etc).
2778 struct gl_matrix_stack
2780 GLmatrix
*Top
; /**< points into Stack */
2781 GLmatrix
*Stack
; /**< array [MaxDepth] of GLmatrix */
2782 GLuint Depth
; /**< 0 <= Depth < MaxDepth */
2783 GLuint MaxDepth
; /**< size of Stack[] array */
2784 GLuint DirtyFlag
; /**< _NEW_MODELVIEW or _NEW_PROJECTION, for example */
2789 * \name Bits for image transfer operations
2790 * \sa __struct gl_contextRec::ImageTransferState.
2793 #define IMAGE_SCALE_BIAS_BIT 0x1
2794 #define IMAGE_SHIFT_OFFSET_BIT 0x2
2795 #define IMAGE_MAP_COLOR_BIT 0x4
2796 #define IMAGE_CLAMP_BIT 0x800
2799 /** Pixel Transfer ops */
2800 #define IMAGE_BITS (IMAGE_SCALE_BIAS_BIT | \
2801 IMAGE_SHIFT_OFFSET_BIT | \
2802 IMAGE_MAP_COLOR_BIT)
2805 * \name Bits to indicate what state has changed.
2810 #define _NEW_MODELVIEW 0x1 /**< __struct gl_contextRec::ModelView */
2811 #define _NEW_PROJECTION 0x2 /**< __struct gl_contextRec::Projection */
2812 #define _NEW_TEXTURE_MATRIX 0x4 /**< __struct gl_contextRec::TextureMatrix */
2813 #define _NEW_ACCUM 0x10 /**< __struct gl_contextRec::Accum */
2814 #define _NEW_COLOR 0x20 /**< __struct gl_contextRec::Color */
2815 #define _NEW_DEPTH 0x40 /**< __struct gl_contextRec::Depth */
2816 #define _NEW_EVAL 0x80 /**< __struct gl_contextRec::Eval, __struct gl_contextRec::EvalMap */
2817 #define _NEW_FOG 0x100 /**< __struct gl_contextRec::Fog */
2818 #define _NEW_HINT 0x200 /**< __struct gl_contextRec::Hint */
2819 #define _NEW_LIGHT 0x400 /**< __struct gl_contextRec::Light */
2820 #define _NEW_LINE 0x800 /**< __struct gl_contextRec::Line */
2821 #define _NEW_PIXEL 0x1000 /**< __struct gl_contextRec::Pixel */
2822 #define _NEW_POINT 0x2000 /**< __struct gl_contextRec::Point */
2823 #define _NEW_POLYGON 0x4000 /**< __struct gl_contextRec::Polygon */
2824 #define _NEW_POLYGONSTIPPLE 0x8000 /**< __struct gl_contextRec::PolygonStipple */
2825 #define _NEW_SCISSOR 0x10000 /**< __struct gl_contextRec::Scissor */
2826 #define _NEW_STENCIL 0x20000 /**< __struct gl_contextRec::Stencil */
2827 #define _NEW_TEXTURE 0x40000 /**< __struct gl_contextRec::Texture */
2828 #define _NEW_TRANSFORM 0x80000 /**< __struct gl_contextRec::Transform */
2829 #define _NEW_VIEWPORT 0x100000 /**< __struct gl_contextRec::Viewport */
2830 #define _NEW_PACKUNPACK 0x200000 /**< __struct gl_contextRec::Pack, __struct gl_contextRec::Unpack */
2831 #define _NEW_ARRAY 0x400000 /**< __struct gl_contextRec::Array */
2832 #define _NEW_RENDERMODE 0x800000 /**< __struct gl_contextRec::RenderMode, __struct gl_contextRec::Feedback, __struct gl_contextRec::Select */
2833 #define _NEW_BUFFERS 0x1000000 /**< __struct gl_contextRec::Visual, __struct gl_contextRec::DrawBuffer, */
2834 #define _NEW_MULTISAMPLE 0x2000000 /**< __struct gl_contextRec::Multisample */
2835 #define _NEW_TRACK_MATRIX 0x4000000 /**< __struct gl_contextRec::VertexProgram */
2836 #define _NEW_PROGRAM 0x8000000 /**< __struct gl_contextRec::VertexProgram */
2837 #define _NEW_CURRENT_ATTRIB 0x10000000 /**< __struct gl_contextRec::Current */
2838 #define _NEW_PROGRAM_CONSTANTS 0x20000000
2839 #define _NEW_BUFFER_OBJECT 0x40000000
2845 * \name Bits to track array state changes
2847 * Also used to summarize array enabled.
2850 #define _NEW_ARRAY_VERTEX VERT_BIT_POS
2851 #define _NEW_ARRAY_WEIGHT VERT_BIT_WEIGHT
2852 #define _NEW_ARRAY_NORMAL VERT_BIT_NORMAL
2853 #define _NEW_ARRAY_COLOR0 VERT_BIT_COLOR0
2854 #define _NEW_ARRAY_COLOR1 VERT_BIT_COLOR1
2855 #define _NEW_ARRAY_FOGCOORD VERT_BIT_FOG
2856 #define _NEW_ARRAY_INDEX VERT_BIT_COLOR_INDEX
2857 #define _NEW_ARRAY_EDGEFLAG VERT_BIT_EDGEFLAG
2858 #define _NEW_ARRAY_POINT_SIZE VERT_BIT_COLOR_INDEX /* aliased */
2859 #define _NEW_ARRAY_TEXCOORD_0 VERT_BIT_TEX0
2860 #define _NEW_ARRAY_TEXCOORD_1 VERT_BIT_TEX1
2861 #define _NEW_ARRAY_TEXCOORD_2 VERT_BIT_TEX2
2862 #define _NEW_ARRAY_TEXCOORD_3 VERT_BIT_TEX3
2863 #define _NEW_ARRAY_TEXCOORD_4 VERT_BIT_TEX4
2864 #define _NEW_ARRAY_TEXCOORD_5 VERT_BIT_TEX5
2865 #define _NEW_ARRAY_TEXCOORD_6 VERT_BIT_TEX6
2866 #define _NEW_ARRAY_TEXCOORD_7 VERT_BIT_TEX7
2867 #define _NEW_ARRAY_ATTRIB_0 VERT_BIT_GENERIC0 /* start at bit 16 */
2868 #define _NEW_ARRAY_ALL 0xffffffff
2871 #define _NEW_ARRAY_TEXCOORD(i) (_NEW_ARRAY_TEXCOORD_0 << (i))
2872 #define _NEW_ARRAY_ATTRIB(i) (_NEW_ARRAY_ATTRIB_0 << (i))
2878 * \name A bunch of flags that we think might be useful to drivers.
2880 * Set in the __struct gl_contextRec::_TriangleCaps bitfield.
2883 #define DD_FLATSHADE 0x1
2884 #define DD_SEPARATE_SPECULAR 0x2
2885 #define DD_TRI_CULL_FRONT_BACK 0x4 /* special case on some hw */
2886 #define DD_TRI_LIGHT_TWOSIDE 0x8
2887 #define DD_TRI_UNFILLED 0x10
2888 #define DD_TRI_SMOOTH 0x20
2889 #define DD_TRI_STIPPLE 0x40
2890 #define DD_TRI_OFFSET 0x80
2891 #define DD_LINE_SMOOTH 0x100
2892 #define DD_LINE_STIPPLE 0x200
2893 #define DD_LINE_WIDTH 0x400
2894 #define DD_POINT_SMOOTH 0x800
2895 #define DD_POINT_SIZE 0x1000
2896 #define DD_POINT_ATTEN 0x2000
2897 #define DD_TRI_TWOSTENCIL 0x4000
2902 * \name Define the state changes under which each of these bits might change
2905 #define _DD_NEW_FLATSHADE _NEW_LIGHT
2906 #define _DD_NEW_SEPARATE_SPECULAR (_NEW_LIGHT | _NEW_FOG | _NEW_PROGRAM)
2907 #define _DD_NEW_TRI_CULL_FRONT_BACK _NEW_POLYGON
2908 #define _DD_NEW_TRI_LIGHT_TWOSIDE _NEW_LIGHT
2909 #define _DD_NEW_TRI_UNFILLED _NEW_POLYGON
2910 #define _DD_NEW_TRI_SMOOTH _NEW_POLYGON
2911 #define _DD_NEW_TRI_STIPPLE _NEW_POLYGON
2912 #define _DD_NEW_TRI_OFFSET _NEW_POLYGON
2913 #define _DD_NEW_LINE_SMOOTH _NEW_LINE
2914 #define _DD_NEW_LINE_STIPPLE _NEW_LINE
2915 #define _DD_NEW_LINE_WIDTH _NEW_LINE
2916 #define _DD_NEW_POINT_SMOOTH _NEW_POINT
2917 #define _DD_NEW_POINT_SIZE _NEW_POINT
2918 #define _DD_NEW_POINT_ATTEN _NEW_POINT
2923 * Composite state flags
2926 #define _MESA_NEW_NEED_EYE_COORDS (_NEW_LIGHT | \
2932 #define _MESA_NEW_NEED_NORMALS (_NEW_LIGHT | \
2935 #define _MESA_NEW_TRANSFER_STATE (_NEW_PIXEL)
2941 /* This has to be included here. */
2946 * Display list flags.
2947 * Strictly this is a tnl-private concept, but it doesn't seem
2948 * worthwhile adding a tnl private structure just to hold this one bit
2951 #define DLIST_DANGLING_REFS 0x1
2954 /** Opaque declaration of display list payload data type */
2955 union gl_dlist_node
;
2959 * Provide a location where information about a display list can be
2960 * collected. Could be extended with driverPrivate structures,
2961 * etc. in the future.
2963 struct gl_display_list
2966 GLbitfield Flags
; /**< DLIST_x flags */
2967 /** The dlist commands are in a linked list of nodes */
2968 union gl_dlist_node
*Head
;
2973 * State used during display list compilation and execution.
2975 struct gl_dlist_state
2977 GLuint CallDepth
; /**< Current recursion calling depth */
2979 struct gl_display_list
*CurrentList
; /**< List currently being compiled */
2980 union gl_dlist_node
*CurrentBlock
; /**< Pointer to current block of nodes */
2981 GLuint CurrentPos
; /**< Index into current block of nodes */
2983 GLvertexformat ListVtxfmt
;
2985 GLubyte ActiveAttribSize
[VERT_ATTRIB_MAX
];
2986 GLfloat CurrentAttrib
[VERT_ATTRIB_MAX
][4];
2988 GLubyte ActiveMaterialSize
[MAT_ATTRIB_MAX
];
2989 GLfloat CurrentMaterial
[MAT_ATTRIB_MAX
][4];
2991 GLubyte ActiveIndex
;
2992 GLfloat CurrentIndex
;
2994 GLubyte ActiveEdgeFlag
;
2995 GLboolean CurrentEdgeFlag
;
2998 /* State known to have been set by the currently-compiling display
2999 * list. Used to eliminate some redundant state changes.
3006 * Enum for the OpenGL APIs we know about and may support.
3015 * Mesa rendering context.
3017 * This is the central context data structure for Mesa. Almost all
3018 * OpenGL state is contained in this structure.
3019 * Think of this as a base class from which device drivers will derive
3022 * The struct gl_context typedef names this structure.
3026 /** State possibly shared with other contexts in the address space */
3027 struct gl_shared_state
*Shared
;
3029 /** \name API function pointer tables */
3032 struct _glapi_table
*Save
; /**< Display list save functions */
3033 struct _glapi_table
*Exec
; /**< Execute functions */
3034 struct _glapi_table
*CurrentDispatch
; /**< == Save or Exec !! */
3037 struct gl_config Visual
;
3038 struct gl_framebuffer
*DrawBuffer
; /**< buffer for writing */
3039 struct gl_framebuffer
*ReadBuffer
; /**< buffer for reading */
3040 struct gl_framebuffer
*WinSysDrawBuffer
; /**< set with MakeCurrent */
3041 struct gl_framebuffer
*WinSysReadBuffer
; /**< set with MakeCurrent */
3044 * Device driver function pointer table
3046 struct dd_function_table Driver
;
3048 void *DriverCtx
; /**< Points to device driver context/state */
3050 /** Core/Driver constants */
3051 struct gl_constants Const
;
3053 /** \name The various 4x4 matrix stacks */
3055 struct gl_matrix_stack ModelviewMatrixStack
;
3056 struct gl_matrix_stack ProjectionMatrixStack
;
3057 struct gl_matrix_stack TextureMatrixStack
[MAX_TEXTURE_UNITS
];
3058 struct gl_matrix_stack ProgramMatrixStack
[MAX_PROGRAM_MATRICES
];
3059 struct gl_matrix_stack
*CurrentStack
; /**< Points to one of the above stacks */
3062 /** Combined modelview and projection matrix */
3063 GLmatrix _ModelProjectMatrix
;
3065 /** \name Display lists */
3066 struct gl_dlist_state ListState
;
3068 GLboolean ExecuteFlag
; /**< Execute GL commands? */
3069 GLboolean CompileFlag
; /**< Compile GL commands into display list? */
3071 /** Extension information */
3072 struct gl_extensions Extensions
;
3075 GLuint VersionMajor
, VersionMinor
;
3076 char *VersionString
;
3078 /** \name State attribute stack (for glPush/PopAttrib) */
3080 GLuint AttribStackDepth
;
3081 struct gl_attrib_node
*AttribStack
[MAX_ATTRIB_STACK_DEPTH
];
3084 /** \name Renderer attribute groups
3086 * We define a struct for each attribute group to make pushing and popping
3087 * attributes easy. Also it's a good organization.
3090 struct gl_accum_attrib Accum
; /**< Accum buffer attributes */
3091 struct gl_colorbuffer_attrib Color
; /**< Color buffer attributes */
3092 struct gl_current_attrib Current
; /**< Current attributes */
3093 struct gl_depthbuffer_attrib Depth
; /**< Depth buffer attributes */
3094 struct gl_eval_attrib Eval
; /**< Eval attributes */
3095 struct gl_fog_attrib Fog
; /**< Fog attributes */
3096 struct gl_hint_attrib Hint
; /**< Hint attributes */
3097 struct gl_light_attrib Light
; /**< Light attributes */
3098 struct gl_line_attrib Line
; /**< Line attributes */
3099 struct gl_list_attrib List
; /**< List attributes */
3100 struct gl_multisample_attrib Multisample
;
3101 struct gl_pixel_attrib Pixel
; /**< Pixel attributes */
3102 struct gl_point_attrib Point
; /**< Point attributes */
3103 struct gl_polygon_attrib Polygon
; /**< Polygon attributes */
3104 GLuint PolygonStipple
[32]; /**< Polygon stipple */
3105 struct gl_scissor_attrib Scissor
; /**< Scissor attributes */
3106 struct gl_stencil_attrib Stencil
; /**< Stencil buffer attributes */
3107 struct gl_texture_attrib Texture
; /**< Texture attributes */
3108 struct gl_transform_attrib Transform
; /**< Transformation attributes */
3109 struct gl_viewport_attrib Viewport
; /**< Viewport attributes */
3112 /** \name Client attribute stack */
3114 GLuint ClientAttribStackDepth
;
3115 struct gl_attrib_node
*ClientAttribStack
[MAX_CLIENT_ATTRIB_STACK_DEPTH
];
3118 /** \name Client attribute groups */
3120 struct gl_array_attrib Array
; /**< Vertex arrays */
3121 struct gl_pixelstore_attrib Pack
; /**< Pixel packing */
3122 struct gl_pixelstore_attrib Unpack
; /**< Pixel unpacking */
3123 struct gl_pixelstore_attrib DefaultPacking
; /**< Default params */
3126 /** \name Other assorted state (not pushed/popped on attribute stack) */
3128 struct gl_pixelmaps PixelMaps
;
3130 struct gl_evaluators EvalMap
; /**< All evaluators */
3131 struct gl_feedback Feedback
; /**< Feedback */
3132 struct gl_selection Select
; /**< Selection */
3134 struct gl_program_state Program
; /**< general program state */
3135 struct gl_vertex_program_state VertexProgram
;
3136 struct gl_fragment_program_state FragmentProgram
;
3137 struct gl_geometry_program_state GeometryProgram
;
3138 struct gl_ati_fragment_shader_state ATIFragmentShader
;
3140 struct gl_shader_state Shader
; /**< GLSL shader object state */
3141 struct gl_shader_compiler_options ShaderCompilerOptions
[MESA_SHADER_TYPES
];
3143 struct gl_query_state Query
; /**< occlusion, timer queries */
3145 struct gl_transform_feedback TransformFeedback
;
3147 struct gl_buffer_object
*CopyReadBuffer
; /**< GL_ARB_copy_buffer */
3148 struct gl_buffer_object
*CopyWriteBuffer
; /**< GL_ARB_copy_buffer */
3151 struct gl_meta_state
*Meta
; /**< for "meta" operations */
3153 /* GL_EXT_framebuffer_object */
3154 struct gl_renderbuffer
*CurrentRenderbuffer
;
3156 GLenum ErrorValue
; /**< Last error code */
3159 * Recognize and silence repeated error debug messages in buggy apps.
3161 const char *ErrorDebugFmtString
;
3162 GLuint ErrorDebugCount
;
3164 GLenum RenderMode
; /**< either GL_RENDER, GL_SELECT, GL_FEEDBACK */
3165 GLbitfield NewState
; /**< bitwise-or of _NEW_* flags */
3167 GLboolean ViewportInitialized
; /**< has viewport size been initialized? */
3169 GLbitfield varying_vp_inputs
; /**< mask of VERT_BIT_* flags */
3171 /** \name Derived state */
3173 /** Bitwise-or of DD_* flags. Note that this bitfield may be used before
3174 * state validation so they need to always be current.
3176 GLbitfield _TriangleCaps
;
3177 GLbitfield _ImageTransferState
;/**< bitwise-or of IMAGE_*_BIT flags */
3178 GLfloat _EyeZDir
[3];
3179 GLfloat _ModelViewInvScale
;
3180 GLboolean _NeedEyeCoords
;
3181 GLboolean _ForceEyeCoords
;
3183 GLuint TextureStateTimestamp
; /**< detect changes to shared state */
3185 struct gl_shine_tab
*_ShineTable
[2]; /**< Active shine tables */
3186 struct gl_shine_tab
*_ShineTabList
; /**< MRU list of inactive shine tables */
3189 struct gl_list_extensions
*ListExt
; /**< driver dlist extensions */
3191 /** \name For debugging/development only */
3193 GLboolean FirstTimeCurrent
;
3196 /** Dither disable via MESA_NO_DITHER env var */
3199 /** software compression/decompression supported or not */
3200 GLboolean Mesa_DXTn
;
3203 * Use dp4 (rather than mul/mad) instructions for position
3206 GLboolean mvp_with_dp4
;
3209 * \name Hooks for module contexts.
3211 * These will eventually live in the driver or elsewhere.
3214 void *swrast_context
;
3215 void *swsetup_context
;
3216 void *swtnl_context
;
3218 struct st_context
*st
;
3224 /** The string names for GL_POINT, GL_LINE_LOOP, etc */
3225 extern const char *_mesa_prim_name
[GL_POLYGON
+4];
3229 extern int MESA_VERBOSE
;
3230 extern int MESA_DEBUG_FLAGS
;
3231 # define MESA_FUNCTION __FUNCTION__
3233 # define MESA_VERBOSE 0
3234 # define MESA_DEBUG_FLAGS 0
3235 # define MESA_FUNCTION "a function"
3242 /** The MESA_VERBOSE var is a bitmask of these flags */
3245 VERBOSE_VARRAY
= 0x0001,
3246 VERBOSE_TEXTURE
= 0x0002,
3247 VERBOSE_MATERIAL
= 0x0004,
3248 VERBOSE_PIPELINE
= 0x0008,
3249 VERBOSE_DRIVER
= 0x0010,
3250 VERBOSE_STATE
= 0x0020,
3251 VERBOSE_API
= 0x0040,
3252 VERBOSE_DISPLAY_LIST
= 0x0100,
3253 VERBOSE_LIGHTING
= 0x0200,
3254 VERBOSE_PRIMS
= 0x0400,
3255 VERBOSE_VERTS
= 0x0800,
3256 VERBOSE_DISASSEM
= 0x1000,
3257 VERBOSE_DRAW
= 0x2000,
3258 VERBOSE_SWAPBUFFERS
= 0x4000
3262 /** The MESA_DEBUG_FLAGS var is a bitmask of these flags */
3265 DEBUG_ALWAYS_FLUSH
= 0x1
3270 #endif /* MTYPES_H */