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 */
46 * Color channel data type.
49 typedef GLubyte GLchan
;
51 #define CHAN_MAXF 255.0F
52 #define CHAN_TYPE GL_UNSIGNED_BYTE
54 typedef GLushort GLchan
;
55 #define CHAN_MAX 65535
56 #define CHAN_MAXF 65535.0F
57 #define CHAN_TYPE GL_UNSIGNED_SHORT
59 typedef GLfloat GLchan
;
61 #define CHAN_MAXF 1.0F
62 #define CHAN_TYPE GL_FLOAT
64 #error "illegal number of color channel bits"
69 * Stencil buffer data type.
72 typedef GLubyte GLstencil
;
73 #elif STENCIL_BITS==16
74 typedef GLushort GLstencil
;
76 # error "illegal number of stencil bits"
81 * \name 64-bit extension of GLbitfield.
84 typedef GLuint64 GLbitfield64
;
86 #define BITFIELD64_ONE 1ULL
87 #define BITFIELD64_ALLONES ~0ULL
89 /** Set a single bit */
90 #define BITFIELD64_BIT(b) (BITFIELD64_ONE << (b))
92 /** Set a mask of the least significant \c b bits */
93 #define BITFIELD64_MASK(b) (((b) >= 64) ? BITFIELD64_ALLONES : \
94 (BITFIELD64_BIT(b) - 1))
97 * Set all bits from l (low bit) to h (high bit), inclusive.
99 * \note \C BITFIELD_64_RANGE(0, 63) return 64 set bits.
101 #define BITFIELD64_RANGE(l, h) (BITFIELD64_MASK((h) + 1) & ~BITFIELD64_MASK(l))
106 * \name Some forward type declarations
109 struct _mesa_HashTable
;
110 struct gl_attrib_node
;
111 struct gl_list_extensions
;
112 struct gl_meta_state
;
113 struct gl_pixelstore_attrib
;
114 struct gl_program_cache
;
115 struct gl_texture_format
;
116 struct gl_texture_image
;
117 struct gl_texture_object
;
125 * Shader stages. Note that these will become 5 with tessellation.
126 * These MUST have the same values as gallium's PIPE_SHADER_*
130 MESA_SHADER_VERTEX
= 0,
131 MESA_SHADER_FRAGMENT
= 1,
132 MESA_SHADER_GEOMETRY
= 2,
133 MESA_SHADER_TYPES
= 3
139 * Indexes for vertex program attributes.
140 * GL_NV_vertex_program aliases generic attributes over the conventional
141 * attributes. In GL_ARB_vertex_program shader the aliasing is optional.
142 * In GL_ARB_vertex_shader / OpenGL 2.0 the aliasing is disallowed (the
143 * generic attributes are distinct/separate).
148 VERT_ATTRIB_WEIGHT
= 1,
149 VERT_ATTRIB_NORMAL
= 2,
150 VERT_ATTRIB_COLOR0
= 3,
151 VERT_ATTRIB_COLOR1
= 4,
153 VERT_ATTRIB_COLOR_INDEX
= 6,
154 VERT_ATTRIB_POINT_SIZE
= 6, /*alias*/
155 VERT_ATTRIB_EDGEFLAG
= 7,
156 VERT_ATTRIB_TEX0
= 8,
157 VERT_ATTRIB_TEX1
= 9,
158 VERT_ATTRIB_TEX2
= 10,
159 VERT_ATTRIB_TEX3
= 11,
160 VERT_ATTRIB_TEX4
= 12,
161 VERT_ATTRIB_TEX5
= 13,
162 VERT_ATTRIB_TEX6
= 14,
163 VERT_ATTRIB_TEX7
= 15,
164 VERT_ATTRIB_GENERIC0
= 16,
165 VERT_ATTRIB_GENERIC1
= 17,
166 VERT_ATTRIB_GENERIC2
= 18,
167 VERT_ATTRIB_GENERIC3
= 19,
168 VERT_ATTRIB_GENERIC4
= 20,
169 VERT_ATTRIB_GENERIC5
= 21,
170 VERT_ATTRIB_GENERIC6
= 22,
171 VERT_ATTRIB_GENERIC7
= 23,
172 VERT_ATTRIB_GENERIC8
= 24,
173 VERT_ATTRIB_GENERIC9
= 25,
174 VERT_ATTRIB_GENERIC10
= 26,
175 VERT_ATTRIB_GENERIC11
= 27,
176 VERT_ATTRIB_GENERIC12
= 28,
177 VERT_ATTRIB_GENERIC13
= 29,
178 VERT_ATTRIB_GENERIC14
= 30,
179 VERT_ATTRIB_GENERIC15
= 31,
184 * Bitflags for vertex attributes.
185 * These are used in bitfields in many places.
188 #define VERT_BIT_POS (1 << VERT_ATTRIB_POS)
189 #define VERT_BIT_WEIGHT (1 << VERT_ATTRIB_WEIGHT)
190 #define VERT_BIT_NORMAL (1 << VERT_ATTRIB_NORMAL)
191 #define VERT_BIT_COLOR0 (1 << VERT_ATTRIB_COLOR0)
192 #define VERT_BIT_COLOR1 (1 << VERT_ATTRIB_COLOR1)
193 #define VERT_BIT_FOG (1 << VERT_ATTRIB_FOG)
194 #define VERT_BIT_COLOR_INDEX (1 << VERT_ATTRIB_COLOR_INDEX)
195 #define VERT_BIT_EDGEFLAG (1 << VERT_ATTRIB_EDGEFLAG)
196 #define VERT_BIT_TEX0 (1 << VERT_ATTRIB_TEX0)
197 #define VERT_BIT_TEX1 (1 << VERT_ATTRIB_TEX1)
198 #define VERT_BIT_TEX2 (1 << VERT_ATTRIB_TEX2)
199 #define VERT_BIT_TEX3 (1 << VERT_ATTRIB_TEX3)
200 #define VERT_BIT_TEX4 (1 << VERT_ATTRIB_TEX4)
201 #define VERT_BIT_TEX5 (1 << VERT_ATTRIB_TEX5)
202 #define VERT_BIT_TEX6 (1 << VERT_ATTRIB_TEX6)
203 #define VERT_BIT_TEX7 (1 << VERT_ATTRIB_TEX7)
204 #define VERT_BIT_GENERIC0 (1 << VERT_ATTRIB_GENERIC0)
205 #define VERT_BIT_GENERIC1 (1 << VERT_ATTRIB_GENERIC1)
206 #define VERT_BIT_GENERIC2 (1 << VERT_ATTRIB_GENERIC2)
207 #define VERT_BIT_GENERIC3 (1 << VERT_ATTRIB_GENERIC3)
208 #define VERT_BIT_GENERIC4 (1 << VERT_ATTRIB_GENERIC4)
209 #define VERT_BIT_GENERIC5 (1 << VERT_ATTRIB_GENERIC5)
210 #define VERT_BIT_GENERIC6 (1 << VERT_ATTRIB_GENERIC6)
211 #define VERT_BIT_GENERIC7 (1 << VERT_ATTRIB_GENERIC7)
212 #define VERT_BIT_GENERIC8 (1 << VERT_ATTRIB_GENERIC8)
213 #define VERT_BIT_GENERIC9 (1 << VERT_ATTRIB_GENERIC9)
214 #define VERT_BIT_GENERIC10 (1 << VERT_ATTRIB_GENERIC10)
215 #define VERT_BIT_GENERIC11 (1 << VERT_ATTRIB_GENERIC11)
216 #define VERT_BIT_GENERIC12 (1 << VERT_ATTRIB_GENERIC12)
217 #define VERT_BIT_GENERIC13 (1 << VERT_ATTRIB_GENERIC13)
218 #define VERT_BIT_GENERIC14 (1 << VERT_ATTRIB_GENERIC14)
219 #define VERT_BIT_GENERIC15 (1 << VERT_ATTRIB_GENERIC15)
221 #define VERT_BIT_TEX(u) (1 << (VERT_ATTRIB_TEX0 + (u)))
222 #define VERT_BIT_GENERIC(g) (1 << (VERT_ATTRIB_GENERIC0 + (g)))
227 * Indexes for vertex program result attributes
231 VERT_RESULT_HPOS
= 0,
232 VERT_RESULT_COL0
= 1,
233 VERT_RESULT_COL1
= 2,
234 VERT_RESULT_FOGC
= 3,
235 VERT_RESULT_TEX0
= 4,
236 VERT_RESULT_TEX1
= 5,
237 VERT_RESULT_TEX2
= 6,
238 VERT_RESULT_TEX3
= 7,
239 VERT_RESULT_TEX4
= 8,
240 VERT_RESULT_TEX5
= 9,
241 VERT_RESULT_TEX6
= 10,
242 VERT_RESULT_TEX7
= 11,
243 VERT_RESULT_PSIZ
= 12,
244 VERT_RESULT_BFC0
= 13,
245 VERT_RESULT_BFC1
= 14,
246 VERT_RESULT_EDGE
= 15,
247 VERT_RESULT_VAR0
= 16, /**< shader varying */
248 VERT_RESULT_MAX
= (VERT_RESULT_VAR0
+ MAX_VARYING
)
252 /*********************************************/
255 * Indexes for geometry program attributes.
259 GEOM_ATTRIB_POSITION
= 0,
260 GEOM_ATTRIB_COLOR0
= 1,
261 GEOM_ATTRIB_COLOR1
= 2,
262 GEOM_ATTRIB_SECONDARY_COLOR0
= 3,
263 GEOM_ATTRIB_SECONDARY_COLOR1
= 4,
264 GEOM_ATTRIB_FOG_FRAG_COORD
= 5,
265 GEOM_ATTRIB_POINT_SIZE
= 6,
266 GEOM_ATTRIB_CLIP_VERTEX
= 7,
267 GEOM_ATTRIB_PRIMITIVE_ID
= 8,
268 GEOM_ATTRIB_TEX_COORD
= 9,
270 GEOM_ATTRIB_VAR0
= 16,
271 GEOM_ATTRIB_MAX
= (GEOM_ATTRIB_VAR0
+ MAX_VARYING
)
275 * Bitflags for geometry attributes.
276 * These are used in bitfields in many places.
279 #define GEOM_BIT_COLOR0 (1 << GEOM_ATTRIB_COLOR0)
280 #define GEOM_BIT_COLOR1 (1 << GEOM_ATTRIB_COLOR1)
281 #define GEOM_BIT_SCOLOR0 (1 << GEOM_ATTRIB_SECONDARY_COLOR0)
282 #define GEOM_BIT_SCOLOR1 (1 << GEOM_ATTRIB_SECONDARY_COLOR1)
283 #define GEOM_BIT_TEX_COORD (1 << GEOM_ATTRIB_TEX_COORD)
284 #define GEOM_BIT_FOG_COORD (1 << GEOM_ATTRIB_FOG_FRAG_COORD)
285 #define GEOM_BIT_POSITION (1 << GEOM_ATTRIB_POSITION)
286 #define GEOM_BIT_POINT_SIDE (1 << GEOM_ATTRIB_POINT_SIZE)
287 #define GEOM_BIT_CLIP_VERTEX (1 << GEOM_ATTRIB_CLIP_VERTEX)
288 #define GEOM_BIT_PRIM_ID (1 << GEOM_ATTRIB_PRIMITIVE_ID)
289 #define GEOM_BIT_VAR0 (1 << GEOM_ATTRIB_VAR0)
291 #define GEOM_BIT_VAR(g) (1 << (GEOM_BIT_VAR0 + (g)))
296 * Indexes for geometry program result attributes
301 GEOM_RESULT_COL0
= 1,
302 GEOM_RESULT_COL1
= 2,
303 GEOM_RESULT_SCOL0
= 3,
304 GEOM_RESULT_SCOL1
= 4,
305 GEOM_RESULT_FOGC
= 5,
306 GEOM_RESULT_TEX0
= 6,
307 GEOM_RESULT_TEX1
= 7,
308 GEOM_RESULT_TEX2
= 8,
309 GEOM_RESULT_TEX3
= 9,
310 GEOM_RESULT_TEX4
= 10,
311 GEOM_RESULT_TEX5
= 11,
312 GEOM_RESULT_TEX6
= 12,
313 GEOM_RESULT_TEX7
= 13,
314 GEOM_RESULT_PSIZ
= 14,
315 GEOM_RESULT_CLPV
= 15,
316 GEOM_RESULT_PRID
= 16,
317 GEOM_RESULT_LAYR
= 17,
318 GEOM_RESULT_VAR0
= 18, /**< shader varying, should really be 16 */
319 /* ### we need to -2 because var0 is 18 instead 16 like in the others */
320 GEOM_RESULT_MAX
= (GEOM_RESULT_VAR0
+ MAX_VARYING
- 2)
325 * Indexes for fragment program input attributes.
329 FRAG_ATTRIB_WPOS
= 0,
330 FRAG_ATTRIB_COL0
= 1,
331 FRAG_ATTRIB_COL1
= 2,
332 FRAG_ATTRIB_FOGC
= 3,
333 FRAG_ATTRIB_TEX0
= 4,
334 FRAG_ATTRIB_TEX1
= 5,
335 FRAG_ATTRIB_TEX2
= 6,
336 FRAG_ATTRIB_TEX3
= 7,
337 FRAG_ATTRIB_TEX4
= 8,
338 FRAG_ATTRIB_TEX5
= 9,
339 FRAG_ATTRIB_TEX6
= 10,
340 FRAG_ATTRIB_TEX7
= 11,
341 FRAG_ATTRIB_FACE
= 12, /**< front/back face */
342 FRAG_ATTRIB_PNTC
= 13, /**< sprite/point coord */
343 FRAG_ATTRIB_VAR0
= 14, /**< shader varying */
344 FRAG_ATTRIB_MAX
= (FRAG_ATTRIB_VAR0
+ MAX_VARYING
)
348 * Bitflags for fragment program input attributes.
351 #define FRAG_BIT_WPOS (1 << FRAG_ATTRIB_WPOS)
352 #define FRAG_BIT_COL0 (1 << FRAG_ATTRIB_COL0)
353 #define FRAG_BIT_COL1 (1 << FRAG_ATTRIB_COL1)
354 #define FRAG_BIT_FOGC (1 << FRAG_ATTRIB_FOGC)
355 #define FRAG_BIT_FACE (1 << FRAG_ATTRIB_FACE)
356 #define FRAG_BIT_PNTC (1 << FRAG_ATTRIB_PNTC)
357 #define FRAG_BIT_TEX0 (1 << FRAG_ATTRIB_TEX0)
358 #define FRAG_BIT_TEX1 (1 << FRAG_ATTRIB_TEX1)
359 #define FRAG_BIT_TEX2 (1 << FRAG_ATTRIB_TEX2)
360 #define FRAG_BIT_TEX3 (1 << FRAG_ATTRIB_TEX3)
361 #define FRAG_BIT_TEX4 (1 << FRAG_ATTRIB_TEX4)
362 #define FRAG_BIT_TEX5 (1 << FRAG_ATTRIB_TEX5)
363 #define FRAG_BIT_TEX6 (1 << FRAG_ATTRIB_TEX6)
364 #define FRAG_BIT_TEX7 (1 << FRAG_ATTRIB_TEX7)
365 #define FRAG_BIT_VAR0 (1 << FRAG_ATTRIB_VAR0)
367 #define FRAG_BIT_TEX(U) (FRAG_BIT_TEX0 << (U))
368 #define FRAG_BIT_VAR(V) (FRAG_BIT_VAR0 << (V))
370 #define FRAG_BITS_TEX_ANY (FRAG_BIT_TEX0| \
382 * Fragment program results
386 FRAG_RESULT_DEPTH
= 0,
387 FRAG_RESULT_STENCIL
= 1,
388 FRAG_RESULT_COLOR
= 2,
389 FRAG_RESULT_DATA0
= 3,
390 FRAG_RESULT_MAX
= (FRAG_RESULT_DATA0
+ MAX_DRAW_BUFFERS
)
395 * Indexes for all renderbuffers
399 /* the four standard color buffers */
407 /* optional aux buffer */
409 /* generic renderbuffers */
422 * Bit flags for all renderbuffers
424 #define BUFFER_BIT_FRONT_LEFT (1 << BUFFER_FRONT_LEFT)
425 #define BUFFER_BIT_BACK_LEFT (1 << BUFFER_BACK_LEFT)
426 #define BUFFER_BIT_FRONT_RIGHT (1 << BUFFER_FRONT_RIGHT)
427 #define BUFFER_BIT_BACK_RIGHT (1 << BUFFER_BACK_RIGHT)
428 #define BUFFER_BIT_AUX0 (1 << BUFFER_AUX0)
429 #define BUFFER_BIT_AUX1 (1 << BUFFER_AUX1)
430 #define BUFFER_BIT_AUX2 (1 << BUFFER_AUX2)
431 #define BUFFER_BIT_AUX3 (1 << BUFFER_AUX3)
432 #define BUFFER_BIT_DEPTH (1 << BUFFER_DEPTH)
433 #define BUFFER_BIT_STENCIL (1 << BUFFER_STENCIL)
434 #define BUFFER_BIT_ACCUM (1 << BUFFER_ACCUM)
435 #define BUFFER_BIT_COLOR0 (1 << BUFFER_COLOR0)
436 #define BUFFER_BIT_COLOR1 (1 << BUFFER_COLOR1)
437 #define BUFFER_BIT_COLOR2 (1 << BUFFER_COLOR2)
438 #define BUFFER_BIT_COLOR3 (1 << BUFFER_COLOR3)
439 #define BUFFER_BIT_COLOR4 (1 << BUFFER_COLOR4)
440 #define BUFFER_BIT_COLOR5 (1 << BUFFER_COLOR5)
441 #define BUFFER_BIT_COLOR6 (1 << BUFFER_COLOR6)
442 #define BUFFER_BIT_COLOR7 (1 << BUFFER_COLOR7)
445 * Mask of all the color buffer bits (but not accum).
447 #define BUFFER_BITS_COLOR (BUFFER_BIT_FRONT_LEFT | \
448 BUFFER_BIT_BACK_LEFT | \
449 BUFFER_BIT_FRONT_RIGHT | \
450 BUFFER_BIT_BACK_RIGHT | \
452 BUFFER_BIT_COLOR0 | \
453 BUFFER_BIT_COLOR1 | \
454 BUFFER_BIT_COLOR2 | \
455 BUFFER_BIT_COLOR3 | \
456 BUFFER_BIT_COLOR4 | \
457 BUFFER_BIT_COLOR5 | \
458 BUFFER_BIT_COLOR6 | \
463 * Framebuffer configuration (aka visual / pixelformat)
464 * Note: some of these fields should be boolean, but it appears that
465 * code in drivers/dri/common/util.c requires int-sized fields.
471 GLboolean colorIndexMode
; /* XXX is this used anywhere? */
472 GLuint doubleBufferMode
;
475 GLboolean haveAccumBuffer
;
476 GLboolean haveDepthBuffer
;
477 GLboolean haveStencilBuffer
;
479 GLint redBits
, greenBits
, blueBits
, alphaBits
; /* bits per comp */
480 GLuint redMask
, greenMask
, blueMask
, alphaMask
;
481 GLint rgbBits
; /* total bits for rgb */
482 GLint indexBits
; /* total bits for colorindex */
484 GLint accumRedBits
, accumGreenBits
, accumBlueBits
, accumAlphaBits
;
492 /* EXT_visual_rating / GLX 1.2 */
495 /* EXT_visual_info / GLX 1.2 */
496 GLint transparentPixel
;
497 /* colors are floats scaled to ints */
498 GLint transparentRed
, transparentGreen
, transparentBlue
, transparentAlpha
;
499 GLint transparentIndex
;
501 /* ARB_multisample / SGIS_multisample */
505 /* SGIX_pbuffer / GLX 1.3 */
506 GLint maxPbufferWidth
;
507 GLint maxPbufferHeight
;
508 GLint maxPbufferPixels
;
509 GLint optimalPbufferWidth
; /* Only for SGIX_pbuffer. */
510 GLint optimalPbufferHeight
; /* Only for SGIX_pbuffer. */
512 /* OML_swap_method */
515 /* EXT_texture_from_pixmap */
516 GLint bindToTextureRgb
;
517 GLint bindToTextureRgba
;
518 GLint bindToMipmapTexture
;
519 GLint bindToTextureTargets
;
525 * Data structure for color tables
527 struct gl_color_table
529 GLenum InternalFormat
; /**< The user-specified format */
530 GLenum _BaseFormat
; /**< GL_ALPHA, GL_RGBA, GL_RGB, etc */
531 GLuint Size
; /**< number of entries in table */
532 GLfloat
*TableF
; /**< Color table, floating point values */
533 GLubyte
*TableUB
; /**< Color table, ubyte values */
538 GLubyte LuminanceSize
;
539 GLubyte IntensitySize
;
544 * \name Bit flags used for updating material values.
547 #define MAT_ATTRIB_FRONT_AMBIENT 0
548 #define MAT_ATTRIB_BACK_AMBIENT 1
549 #define MAT_ATTRIB_FRONT_DIFFUSE 2
550 #define MAT_ATTRIB_BACK_DIFFUSE 3
551 #define MAT_ATTRIB_FRONT_SPECULAR 4
552 #define MAT_ATTRIB_BACK_SPECULAR 5
553 #define MAT_ATTRIB_FRONT_EMISSION 6
554 #define MAT_ATTRIB_BACK_EMISSION 7
555 #define MAT_ATTRIB_FRONT_SHININESS 8
556 #define MAT_ATTRIB_BACK_SHININESS 9
557 #define MAT_ATTRIB_FRONT_INDEXES 10
558 #define MAT_ATTRIB_BACK_INDEXES 11
559 #define MAT_ATTRIB_MAX 12
561 #define MAT_ATTRIB_AMBIENT(f) (MAT_ATTRIB_FRONT_AMBIENT+(f))
562 #define MAT_ATTRIB_DIFFUSE(f) (MAT_ATTRIB_FRONT_DIFFUSE+(f))
563 #define MAT_ATTRIB_SPECULAR(f) (MAT_ATTRIB_FRONT_SPECULAR+(f))
564 #define MAT_ATTRIB_EMISSION(f) (MAT_ATTRIB_FRONT_EMISSION+(f))
565 #define MAT_ATTRIB_SHININESS(f)(MAT_ATTRIB_FRONT_SHININESS+(f))
566 #define MAT_ATTRIB_INDEXES(f) (MAT_ATTRIB_FRONT_INDEXES+(f))
568 #define MAT_INDEX_AMBIENT 0
569 #define MAT_INDEX_DIFFUSE 1
570 #define MAT_INDEX_SPECULAR 2
572 #define MAT_BIT_FRONT_AMBIENT (1<<MAT_ATTRIB_FRONT_AMBIENT)
573 #define MAT_BIT_BACK_AMBIENT (1<<MAT_ATTRIB_BACK_AMBIENT)
574 #define MAT_BIT_FRONT_DIFFUSE (1<<MAT_ATTRIB_FRONT_DIFFUSE)
575 #define MAT_BIT_BACK_DIFFUSE (1<<MAT_ATTRIB_BACK_DIFFUSE)
576 #define MAT_BIT_FRONT_SPECULAR (1<<MAT_ATTRIB_FRONT_SPECULAR)
577 #define MAT_BIT_BACK_SPECULAR (1<<MAT_ATTRIB_BACK_SPECULAR)
578 #define MAT_BIT_FRONT_EMISSION (1<<MAT_ATTRIB_FRONT_EMISSION)
579 #define MAT_BIT_BACK_EMISSION (1<<MAT_ATTRIB_BACK_EMISSION)
580 #define MAT_BIT_FRONT_SHININESS (1<<MAT_ATTRIB_FRONT_SHININESS)
581 #define MAT_BIT_BACK_SHININESS (1<<MAT_ATTRIB_BACK_SHININESS)
582 #define MAT_BIT_FRONT_INDEXES (1<<MAT_ATTRIB_FRONT_INDEXES)
583 #define MAT_BIT_BACK_INDEXES (1<<MAT_ATTRIB_BACK_INDEXES)
586 #define FRONT_MATERIAL_BITS (MAT_BIT_FRONT_EMISSION | \
587 MAT_BIT_FRONT_AMBIENT | \
588 MAT_BIT_FRONT_DIFFUSE | \
589 MAT_BIT_FRONT_SPECULAR | \
590 MAT_BIT_FRONT_SHININESS | \
591 MAT_BIT_FRONT_INDEXES)
593 #define BACK_MATERIAL_BITS (MAT_BIT_BACK_EMISSION | \
594 MAT_BIT_BACK_AMBIENT | \
595 MAT_BIT_BACK_DIFFUSE | \
596 MAT_BIT_BACK_SPECULAR | \
597 MAT_BIT_BACK_SHININESS | \
598 MAT_BIT_BACK_INDEXES)
600 #define ALL_MATERIAL_BITS (FRONT_MATERIAL_BITS | BACK_MATERIAL_BITS)
604 #define EXP_TABLE_SIZE 512 /**< Specular exponent lookup table sizes */
605 #define SHINE_TABLE_SIZE 256 /**< Material shininess lookup table sizes */
608 * Material shininess lookup table.
612 struct gl_shine_tab
*next
, *prev
;
613 GLfloat tab
[SHINE_TABLE_SIZE
+1];
620 * Light source state.
624 struct gl_light
*next
; /**< double linked list with sentinel */
625 struct gl_light
*prev
;
627 GLfloat Ambient
[4]; /**< ambient color */
628 GLfloat Diffuse
[4]; /**< diffuse color */
629 GLfloat Specular
[4]; /**< specular color */
630 GLfloat EyePosition
[4]; /**< position in eye coordinates */
631 GLfloat SpotDirection
[4]; /**< spotlight direction in eye coordinates */
632 GLfloat SpotExponent
;
633 GLfloat SpotCutoff
; /**< in degrees */
634 GLfloat _CosCutoffNeg
; /**< = cos(SpotCutoff) */
635 GLfloat _CosCutoff
; /**< = MAX(0, cos(SpotCutoff)) */
636 GLfloat ConstantAttenuation
;
637 GLfloat LinearAttenuation
;
638 GLfloat QuadraticAttenuation
;
639 GLboolean Enabled
; /**< On/off flag */
642 * \name Derived fields
645 GLbitfield _Flags
; /**< State */
647 GLfloat _Position
[4]; /**< position in eye/obj coordinates */
648 GLfloat _VP_inf_norm
[3]; /**< Norm direction to infinite light */
649 GLfloat _h_inf_norm
[3]; /**< Norm( _VP_inf_norm + <0,0,1> ) */
650 GLfloat _NormSpotDirection
[4]; /**< normalized spotlight direction */
651 GLfloat _VP_inf_spot_attenuation
;
653 GLfloat _SpotExpTable
[EXP_TABLE_SIZE
][2]; /**< to replace a pow() call */
654 GLfloat _MatAmbient
[2][3]; /**< material ambient * light ambient */
655 GLfloat _MatDiffuse
[2][3]; /**< material diffuse * light diffuse */
656 GLfloat _MatSpecular
[2][3]; /**< material spec * light specular */
657 GLfloat _dli
; /**< CI diffuse light intensity */
658 GLfloat _sli
; /**< CI specular light intensity */
668 GLfloat Ambient
[4]; /**< ambient color */
669 GLboolean LocalViewer
; /**< Local (or infinite) view point? */
670 GLboolean TwoSide
; /**< Two (or one) sided lighting? */
671 GLenum ColorControl
; /**< either GL_SINGLE_COLOR
672 * or GL_SEPARATE_SPECULAR_COLOR */
681 GLfloat Attrib
[MAT_ATTRIB_MAX
][4];
686 * Accumulation buffer attribute group (GL_ACCUM_BUFFER_BIT)
688 struct gl_accum_attrib
690 GLfloat ClearColor
[4]; /**< Accumulation buffer clear color */
695 * Color buffer attribute group (GL_COLOR_BUFFER_BIT).
697 struct gl_colorbuffer_attrib
699 GLuint ClearIndex
; /**< Index to use for glClear */
700 GLclampf ClearColor
[4]; /**< Color to use for glClear */
702 GLuint IndexMask
; /**< Color index write mask */
703 GLubyte ColorMask
[MAX_DRAW_BUFFERS
][4];/**< Each flag is 0xff or 0x0 */
705 GLenum DrawBuffer
[MAX_DRAW_BUFFERS
]; /**< Which buffer to draw into */
708 * \name alpha testing
711 GLboolean AlphaEnabled
; /**< Alpha test enabled flag */
712 GLenum AlphaFunc
; /**< Alpha test function */
713 GLclampf AlphaRef
; /**< Alpha reference value */
720 GLbitfield BlendEnabled
; /**< Per-buffer blend enable flags */
721 GLenum BlendSrcRGB
; /**< Blending source operator */
722 GLenum BlendDstRGB
; /**< Blending destination operator */
723 GLenum BlendSrcA
; /**< GL_INGR_blend_func_separate */
724 GLenum BlendDstA
; /**< GL_INGR_blend_func_separate */
725 GLenum BlendEquationRGB
; /**< Blending equation */
726 GLenum BlendEquationA
; /**< GL_EXT_blend_equation_separate */
727 GLfloat BlendColor
[4]; /**< Blending color */
734 GLenum LogicOp
; /**< Logic operator */
735 GLboolean IndexLogicOpEnabled
; /**< Color index logic op enabled flag */
736 GLboolean ColorLogicOpEnabled
; /**< RGBA logic op enabled flag */
737 GLboolean _LogicOpEnabled
; /**< RGBA logic op + EXT_blend_logic_op enabled flag */
740 GLboolean DitherFlag
; /**< Dither enable flag */
742 GLenum ClampFragmentColor
; /**< GL_TRUE, GL_FALSE or GL_FIXED_ONLY_ARB */
743 GLenum ClampReadColor
; /**< GL_TRUE, GL_FALSE or GL_FIXED_ONLY_ARB */
748 * Current attribute group (GL_CURRENT_BIT).
750 struct gl_current_attrib
753 * \name Current vertex attributes.
754 * \note Values are valid only after FLUSH_VERTICES has been called.
755 * \note Index and Edgeflag current values are stored as floats in the
756 * SIX and SEVEN attribute slots.
758 GLfloat Attrib
[VERT_ATTRIB_MAX
][4]; /**< Position, color, texcoords, etc */
761 * \name Current raster position attributes (always valid).
762 * \note This set of attributes is very similar to the SWvertex struct.
765 GLfloat RasterPos
[4];
766 GLfloat RasterDistance
;
767 GLfloat RasterColor
[4];
768 GLfloat RasterSecondaryColor
[4];
769 GLfloat RasterTexCoords
[MAX_TEXTURE_COORD_UNITS
][4];
770 GLboolean RasterPosValid
;
776 * Depth buffer attribute group (GL_DEPTH_BUFFER_BIT).
778 struct gl_depthbuffer_attrib
780 GLenum Func
; /**< Function for depth buffer compare */
781 GLclampd Clear
; /**< Value to clear depth buffer to */
782 GLboolean Test
; /**< Depth buffering enabled flag */
783 GLboolean Mask
; /**< Depth buffer writable? */
784 GLboolean BoundsTest
; /**< GL_EXT_depth_bounds_test */
785 GLfloat BoundsMin
, BoundsMax
;/**< GL_EXT_depth_bounds_test */
790 * Evaluator attribute group (GL_EVAL_BIT).
792 struct gl_eval_attrib
798 GLboolean Map1Color4
;
800 GLboolean Map1Normal
;
801 GLboolean Map1TextureCoord1
;
802 GLboolean Map1TextureCoord2
;
803 GLboolean Map1TextureCoord3
;
804 GLboolean Map1TextureCoord4
;
805 GLboolean Map1Vertex3
;
806 GLboolean Map1Vertex4
;
807 GLboolean Map1Attrib
[16]; /* GL_NV_vertex_program */
808 GLboolean Map2Color4
;
810 GLboolean Map2Normal
;
811 GLboolean Map2TextureCoord1
;
812 GLboolean Map2TextureCoord2
;
813 GLboolean Map2TextureCoord3
;
814 GLboolean Map2TextureCoord4
;
815 GLboolean Map2Vertex3
;
816 GLboolean Map2Vertex4
;
817 GLboolean Map2Attrib
[16]; /* GL_NV_vertex_program */
818 GLboolean AutoNormal
;
822 * \name Map Grid endpoints and divisions and calculated du values
826 GLfloat MapGrid1u1
, MapGrid1u2
, MapGrid1du
;
827 GLint MapGrid2un
, MapGrid2vn
;
828 GLfloat MapGrid2u1
, MapGrid2u2
, MapGrid2du
;
829 GLfloat MapGrid2v1
, MapGrid2v2
, MapGrid2dv
;
835 * Fog attribute group (GL_FOG_BIT).
839 GLboolean Enabled
; /**< Fog enabled flag */
840 GLfloat Color
[4]; /**< Fog color */
841 GLfloat Density
; /**< Density >= 0.0 */
842 GLfloat Start
; /**< Start distance in eye coords */
843 GLfloat End
; /**< End distance in eye coords */
844 GLfloat Index
; /**< Fog index */
845 GLenum Mode
; /**< Fog mode */
846 GLboolean ColorSumEnabled
;
847 GLenum FogCoordinateSource
; /**< GL_EXT_fog_coord */
848 GLfloat _Scale
; /**< (End == Start) ? 1.0 : 1.0 / (End - Start) */
853 * Hint attribute group (GL_HINT_BIT).
855 * Values are always one of GL_FASTEST, GL_NICEST, or GL_DONT_CARE.
857 struct gl_hint_attrib
859 GLenum PerspectiveCorrection
;
862 GLenum PolygonSmooth
;
864 GLenum ClipVolumeClipping
; /**< GL_EXT_clip_volume_hint */
865 GLenum TextureCompression
; /**< GL_ARB_texture_compression */
866 GLenum GenerateMipmap
; /**< GL_SGIS_generate_mipmap */
867 GLenum FragmentShaderDerivative
; /**< GL_ARB_fragment_shader */
874 #define LIGHT_SPOT 0x1
875 #define LIGHT_LOCAL_VIEWER 0x2
876 #define LIGHT_POSITIONAL 0x4
877 #define LIGHT_NEED_VERTICES (LIGHT_POSITIONAL|LIGHT_LOCAL_VIEWER)
882 * Lighting attribute group (GL_LIGHT_BIT).
884 struct gl_light_attrib
886 struct gl_light Light
[MAX_LIGHTS
]; /**< Array of light sources */
887 struct gl_lightmodel Model
; /**< Lighting model */
890 * Must flush FLUSH_VERTICES before referencing:
893 struct gl_material Material
; /**< Includes front & back values */
896 GLboolean Enabled
; /**< Lighting enabled flag */
897 GLenum ShadeModel
; /**< GL_FLAT or GL_SMOOTH */
898 GLenum ProvokingVertex
; /**< GL_EXT_provoking_vertex */
899 GLenum ColorMaterialFace
; /**< GL_FRONT, BACK or FRONT_AND_BACK */
900 GLenum ColorMaterialMode
; /**< GL_AMBIENT, GL_DIFFUSE, etc */
901 GLbitfield ColorMaterialBitmask
; /**< bitmask formed from Face and Mode */
902 GLboolean ColorMaterialEnabled
;
903 GLenum ClampVertexColor
;
905 struct gl_light EnabledList
; /**< List sentinel */
908 * Derived state for optimizations:
911 GLboolean _NeedEyeCoords
;
912 GLboolean _NeedVertices
; /**< Use fast shader? */
913 GLbitfield _Flags
; /**< LIGHT_* flags, see above */
914 GLfloat _BaseColor
[2][3];
920 * Line attribute group (GL_LINE_BIT).
922 struct gl_line_attrib
924 GLboolean SmoothFlag
; /**< GL_LINE_SMOOTH enabled? */
925 GLboolean StippleFlag
; /**< GL_LINE_STIPPLE enabled? */
926 GLushort StipplePattern
; /**< Stipple pattern */
927 GLint StippleFactor
; /**< Stipple repeat factor */
928 GLfloat Width
; /**< Line width */
933 * Display list attribute group (GL_LIST_BIT).
935 struct gl_list_attrib
942 * Multisample attribute group (GL_MULTISAMPLE_BIT).
944 struct gl_multisample_attrib
947 GLboolean _Enabled
; /**< true if Enabled and multisample buffer */
948 GLboolean SampleAlphaToCoverage
;
949 GLboolean SampleAlphaToOne
;
950 GLboolean SampleCoverage
;
951 GLfloat SampleCoverageValue
;
952 GLboolean SampleCoverageInvert
;
957 * A pixelmap (see glPixelMap)
962 GLfloat Map
[MAX_PIXEL_MAP_TABLE
];
963 GLubyte Map8
[MAX_PIXEL_MAP_TABLE
]; /**< converted to 8-bit color */
968 * Collection of all pixelmaps
972 struct gl_pixelmap RtoR
; /**< i.e. GL_PIXEL_MAP_R_TO_R */
973 struct gl_pixelmap GtoG
;
974 struct gl_pixelmap BtoB
;
975 struct gl_pixelmap AtoA
;
976 struct gl_pixelmap ItoR
;
977 struct gl_pixelmap ItoG
;
978 struct gl_pixelmap ItoB
;
979 struct gl_pixelmap ItoA
;
980 struct gl_pixelmap ItoI
;
981 struct gl_pixelmap StoS
;
986 * Pixel attribute group (GL_PIXEL_MODE_BIT).
988 struct gl_pixel_attrib
990 GLenum ReadBuffer
; /**< source buffer for glRead/CopyPixels() */
992 /*--- Begin Pixel Transfer State ---*/
993 /* Fields are in the order in which they're applied... */
995 /** Scale & Bias (index shift, offset) */
997 GLfloat RedBias
, RedScale
;
998 GLfloat GreenBias
, GreenScale
;
999 GLfloat BlueBias
, BlueScale
;
1000 GLfloat AlphaBias
, AlphaScale
;
1001 GLfloat DepthBias
, DepthScale
;
1002 GLint IndexShift
, IndexOffset
;
1006 /* Note: actual pixel maps are not part of this attrib group */
1007 GLboolean MapColorFlag
;
1008 GLboolean MapStencilFlag
;
1010 /*--- End Pixel Transfer State ---*/
1013 GLfloat ZoomX
, ZoomY
;
1015 /** GL_SGI_texture_color_table */
1016 GLfloat TextureColorTableScale
[4]; /**< RGBA */
1017 GLfloat TextureColorTableBias
[4]; /**< RGBA */
1022 * Point attribute group (GL_POINT_BIT).
1024 struct gl_point_attrib
1026 GLboolean SmoothFlag
; /**< True if GL_POINT_SMOOTH is enabled */
1027 GLfloat Size
; /**< User-specified point size */
1028 GLfloat Params
[3]; /**< GL_EXT_point_parameters */
1029 GLfloat MinSize
, MaxSize
; /**< GL_EXT_point_parameters */
1030 GLfloat Threshold
; /**< GL_EXT_point_parameters */
1031 GLboolean _Attenuated
; /**< True if Params != [1, 0, 0] */
1032 GLboolean PointSprite
; /**< GL_NV/ARB_point_sprite */
1033 GLboolean CoordReplace
[MAX_TEXTURE_COORD_UNITS
]; /**< GL_ARB_point_sprite*/
1034 GLenum SpriteRMode
; /**< GL_NV_point_sprite (only!) */
1035 GLenum SpriteOrigin
; /**< GL_ARB_point_sprite */
1040 * Polygon attribute group (GL_POLYGON_BIT).
1042 struct gl_polygon_attrib
1044 GLenum FrontFace
; /**< Either GL_CW or GL_CCW */
1045 GLenum FrontMode
; /**< Either GL_POINT, GL_LINE or GL_FILL */
1046 GLenum BackMode
; /**< Either GL_POINT, GL_LINE or GL_FILL */
1047 GLboolean _FrontBit
; /**< 0=GL_CCW, 1=GL_CW */
1048 GLboolean CullFlag
; /**< Culling on/off flag */
1049 GLboolean SmoothFlag
; /**< True if GL_POLYGON_SMOOTH is enabled */
1050 GLboolean StippleFlag
; /**< True if GL_POLYGON_STIPPLE is enabled */
1051 GLenum CullFaceMode
; /**< Culling mode GL_FRONT or GL_BACK */
1052 GLfloat OffsetFactor
; /**< Polygon offset factor, from user */
1053 GLfloat OffsetUnits
; /**< Polygon offset units, from user */
1054 GLboolean OffsetPoint
; /**< Offset in GL_POINT mode */
1055 GLboolean OffsetLine
; /**< Offset in GL_LINE mode */
1056 GLboolean OffsetFill
; /**< Offset in GL_FILL mode */
1061 * Scissor attributes (GL_SCISSOR_BIT).
1063 struct gl_scissor_attrib
1065 GLboolean Enabled
; /**< Scissor test enabled? */
1066 GLint X
, Y
; /**< Lower left corner of box */
1067 GLsizei Width
, Height
; /**< Size of box */
1072 * Stencil attribute group (GL_STENCIL_BUFFER_BIT).
1074 * Three sets of stencil data are tracked so that OpenGL 2.0,
1075 * GL_EXT_stencil_two_side, and GL_ATI_separate_stencil can all be supported
1076 * simultaneously. In each of the stencil state arrays, element 0 corresponds
1077 * to GL_FRONT. Element 1 corresponds to the OpenGL 2.0 /
1078 * GL_ATI_separate_stencil GL_BACK state. Element 2 corresponds to the
1079 * GL_EXT_stencil_two_side GL_BACK state.
1081 * The derived value \c _BackFace is either 1 or 2 depending on whether or
1082 * not GL_STENCIL_TEST_TWO_SIDE_EXT is enabled.
1084 * The derived value \c _TestTwoSide is set when the front-face and back-face
1085 * stencil state are different.
1087 struct gl_stencil_attrib
1089 GLboolean Enabled
; /**< Enabled flag */
1090 GLboolean TestTwoSide
; /**< GL_EXT_stencil_two_side */
1091 GLubyte ActiveFace
; /**< GL_EXT_stencil_two_side (0 or 2) */
1092 GLboolean _Enabled
; /**< Enabled and stencil buffer present */
1093 GLboolean _TestTwoSide
;
1094 GLubyte _BackFace
; /**< Current back stencil state (1 or 2) */
1095 GLenum Function
[3]; /**< Stencil function */
1096 GLenum FailFunc
[3]; /**< Fail function */
1097 GLenum ZPassFunc
[3]; /**< Depth buffer pass function */
1098 GLenum ZFailFunc
[3]; /**< Depth buffer fail function */
1099 GLint Ref
[3]; /**< Reference value */
1100 GLuint ValueMask
[3]; /**< Value mask */
1101 GLuint WriteMask
[3]; /**< Write mask */
1102 GLuint Clear
; /**< Clear value */
1107 * An index for each type of texture object. These correspond to the GL
1108 * texture target enums, such as GL_TEXTURE_2D, GL_TEXTURE_CUBE_MAP, etc.
1109 * Note: the order is from highest priority to lowest priority.
1113 TEXTURE_2D_ARRAY_INDEX
,
1114 TEXTURE_1D_ARRAY_INDEX
,
1125 * Bit flags for each type of texture object
1126 * Used for Texture.Unit[]._ReallyEnabled flags.
1129 #define TEXTURE_2D_ARRAY_BIT (1 << TEXTURE_2D_ARRAY_INDEX)
1130 #define TEXTURE_1D_ARRAY_BIT (1 << TEXTURE_1D_ARRAY_INDEX)
1131 #define TEXTURE_CUBE_BIT (1 << TEXTURE_CUBE_INDEX)
1132 #define TEXTURE_3D_BIT (1 << TEXTURE_3D_INDEX)
1133 #define TEXTURE_RECT_BIT (1 << TEXTURE_RECT_INDEX)
1134 #define TEXTURE_2D_BIT (1 << TEXTURE_2D_INDEX)
1135 #define TEXTURE_1D_BIT (1 << TEXTURE_1D_INDEX)
1140 * TexGenEnabled flags.
1147 #define STR_BITS (S_BIT | T_BIT | R_BIT)
1152 * Bit flag versions of the corresponding GL_ constants.
1155 #define TEXGEN_SPHERE_MAP 0x1
1156 #define TEXGEN_OBJ_LINEAR 0x2
1157 #define TEXGEN_EYE_LINEAR 0x4
1158 #define TEXGEN_REFLECTION_MAP_NV 0x8
1159 #define TEXGEN_NORMAL_MAP_NV 0x10
1161 #define TEXGEN_NEED_NORMALS (TEXGEN_SPHERE_MAP | \
1162 TEXGEN_REFLECTION_MAP_NV | \
1163 TEXGEN_NORMAL_MAP_NV)
1164 #define TEXGEN_NEED_EYE_COORD (TEXGEN_SPHERE_MAP | \
1165 TEXGEN_REFLECTION_MAP_NV | \
1166 TEXGEN_NORMAL_MAP_NV | \
1172 /** Tex-gen enabled for texture unit? */
1173 #define ENABLE_TEXGEN(unit) (1 << (unit))
1175 /** Non-identity texture matrix for texture unit? */
1176 #define ENABLE_TEXMAT(unit) (1 << (unit))
1180 * Texel fetch function prototype. We use texel fetch functions to
1181 * extract RGBA, color indexes and depth components out of 1D, 2D and 3D
1182 * texture images. These functions help to isolate us from the gritty
1183 * details of all the various texture image encodings.
1185 * \param texImage texture image.
1186 * \param col texel column.
1187 * \param row texel row.
1188 * \param img texel image level/layer.
1189 * \param texelOut output texel (up to 4 GLchans)
1191 typedef void (*FetchTexelFuncC
)( const struct gl_texture_image
*texImage
,
1192 GLint col
, GLint row
, GLint img
,
1196 * As above, but returns floats.
1197 * Used for depth component images and for upcoming signed/float
1200 typedef void (*FetchTexelFuncF
)( const struct gl_texture_image
*texImage
,
1201 GLint col
, GLint row
, GLint img
,
1202 GLfloat
*texelOut
);
1205 typedef void (*StoreTexelFunc
)(struct gl_texture_image
*texImage
,
1206 GLint col
, GLint row
, GLint img
,
1211 * Texture image state. Describes the dimensions of a texture image,
1212 * the texel format and pointers to Texel Fetch functions.
1214 struct gl_texture_image
1216 GLint InternalFormat
; /**< Internal format as given by the user */
1217 GLenum _BaseFormat
; /**< Either GL_RGB, GL_RGBA, GL_ALPHA,
1218 * GL_LUMINANCE, GL_LUMINANCE_ALPHA,
1219 * GL_INTENSITY, GL_COLOR_INDEX,
1220 * GL_DEPTH_COMPONENT or GL_DEPTH_STENCIL_EXT
1221 * only. Used for choosing TexEnv arithmetic.
1223 GLuint TexFormat
; /**< The actual format: MESA_FORMAT_x */
1225 GLuint Border
; /**< 0 or 1 */
1226 GLuint Width
; /**< = 2^WidthLog2 + 2*Border */
1227 GLuint Height
; /**< = 2^HeightLog2 + 2*Border */
1228 GLuint Depth
; /**< = 2^DepthLog2 + 2*Border */
1229 GLuint Width2
; /**< = Width - 2*Border */
1230 GLuint Height2
; /**< = Height - 2*Border */
1231 GLuint Depth2
; /**< = Depth - 2*Border */
1232 GLuint WidthLog2
; /**< = log2(Width2) */
1233 GLuint HeightLog2
; /**< = log2(Height2) */
1234 GLuint DepthLog2
; /**< = log2(Depth2) */
1235 GLuint MaxLog2
; /**< = MAX(WidthLog2, HeightLog2) */
1236 GLfloat WidthScale
; /**< used for mipmap LOD computation */
1237 GLfloat HeightScale
; /**< used for mipmap LOD computation */
1238 GLfloat DepthScale
; /**< used for mipmap LOD computation */
1239 GLboolean IsClientData
; /**< Data owned by client? */
1240 GLboolean _IsPowerOfTwo
; /**< Are all dimensions powers of two? */
1242 struct gl_texture_object
*TexObject
; /**< Pointer back to parent object */
1244 FetchTexelFuncC FetchTexelc
; /**< GLchan texel fetch function pointer */
1245 FetchTexelFuncF FetchTexelf
; /**< Float texel fetch function pointer */
1247 GLuint RowStride
; /**< Padded width in units of texels */
1248 GLuint
*ImageOffsets
; /**< if 3D texture: array [Depth] of offsets to
1249 each 2D slice in 'Data', in texels */
1250 GLvoid
*Data
; /**< Image data, accessed via FetchTexel() */
1253 * \name For device driver:
1256 void *DriverData
; /**< Arbitrary device driver data */
1262 * Indexes for cube map faces.
1277 * Texture object state. Contains the array of mipmap images, border color,
1278 * wrap modes, filter modes, shadow/texcompare state, and the per-texture
1281 struct gl_texture_object
1283 _glthread_Mutex Mutex
; /**< for thread safety */
1284 GLint RefCount
; /**< reference count */
1285 GLuint Name
; /**< the user-visible texture object ID */
1286 GLenum Target
; /**< GL_TEXTURE_1D, GL_TEXTURE_2D, etc. */
1287 GLfloat Priority
; /**< in [0,1] */
1292 } BorderColor
; /**< Interpreted according to texture format */
1293 GLenum WrapS
; /**< S-axis texture image wrap mode */
1294 GLenum WrapT
; /**< T-axis texture image wrap mode */
1295 GLenum WrapR
; /**< R-axis texture image wrap mode */
1296 GLenum MinFilter
; /**< minification filter */
1297 GLenum MagFilter
; /**< magnification filter */
1298 GLfloat MinLod
; /**< min lambda, OpenGL 1.2 */
1299 GLfloat MaxLod
; /**< max lambda, OpenGL 1.2 */
1300 GLfloat LodBias
; /**< OpenGL 1.4 */
1301 GLint BaseLevel
; /**< min mipmap level, OpenGL 1.2 */
1302 GLint MaxLevel
; /**< max mipmap level, OpenGL 1.2 */
1303 GLfloat MaxAnisotropy
; /**< GL_EXT_texture_filter_anisotropic */
1304 GLenum CompareMode
; /**< GL_ARB_shadow */
1305 GLenum CompareFunc
; /**< GL_ARB_shadow */
1306 GLfloat CompareFailValue
; /**< GL_ARB_shadow_ambient */
1307 GLenum DepthMode
; /**< GL_ARB_depth_texture */
1308 GLint _MaxLevel
; /**< actual max mipmap level (q in the spec) */
1309 GLfloat _MaxLambda
; /**< = _MaxLevel - BaseLevel (q - b in spec) */
1310 GLint CropRect
[4]; /**< GL_OES_draw_texture */
1311 GLenum Swizzle
[4]; /**< GL_EXT_texture_swizzle */
1312 GLuint _Swizzle
; /**< same as Swizzle, but SWIZZLE_* format */
1313 GLboolean GenerateMipmap
; /**< GL_SGIS_generate_mipmap */
1314 GLboolean _Complete
; /**< Is texture object complete? */
1315 GLboolean _RenderToTexture
; /**< Any rendering to this texture? */
1316 GLboolean Purgeable
; /**< Is the buffer purgeable under memory pressure? */
1318 /** Actual texture images, indexed by [cube face] and [mipmap level] */
1319 struct gl_texture_image
*Image
[MAX_FACES
][MAX_TEXTURE_LEVELS
];
1321 /** GL_EXT_paletted_texture */
1322 struct gl_color_table Palette
;
1325 * \name For device driver.
1326 * Note: instead of attaching driver data to this pointer, it's preferable
1327 * to instead use this struct as a base class for your own texture object
1328 * class. Driver->NewTextureObject() can be used to implement the
1331 void *DriverData
; /**< Arbitrary device driver data */
1335 /** Up to four combiner sources are possible with GL_NV_texture_env_combine4 */
1336 #define MAX_COMBINER_TERMS 4
1340 * Texture combine environment state.
1342 struct gl_tex_env_combine_state
1344 GLenum ModeRGB
; /**< GL_REPLACE, GL_DECAL, GL_ADD, etc. */
1345 GLenum ModeA
; /**< GL_REPLACE, GL_DECAL, GL_ADD, etc. */
1346 /** Source terms: GL_PRIMARY_COLOR, GL_TEXTURE, etc */
1347 GLenum SourceRGB
[MAX_COMBINER_TERMS
];
1348 GLenum SourceA
[MAX_COMBINER_TERMS
];
1349 /** Source operands: GL_SRC_COLOR, GL_ONE_MINUS_SRC_COLOR, etc */
1350 GLenum OperandRGB
[MAX_COMBINER_TERMS
];
1351 GLenum OperandA
[MAX_COMBINER_TERMS
];
1352 GLuint ScaleShiftRGB
; /**< 0, 1 or 2 */
1353 GLuint ScaleShiftA
; /**< 0, 1 or 2 */
1354 GLuint _NumArgsRGB
; /**< Number of inputs used for the RGB combiner */
1355 GLuint _NumArgsA
; /**< Number of inputs used for the A combiner */
1360 * Texture coord generation state.
1364 GLenum Mode
; /**< GL_EYE_LINEAR, GL_SPHERE_MAP, etc */
1365 GLbitfield _ModeBit
; /**< TEXGEN_x bit corresponding to Mode */
1366 GLfloat ObjectPlane
[4];
1367 GLfloat EyePlane
[4];
1372 * Texture unit state. Contains enable flags, texture environment/function/
1373 * combiners, texgen state, pointers to current texture objects and
1374 * post-filter color tables.
1376 struct gl_texture_unit
1378 GLbitfield Enabled
; /**< bitmask of TEXTURE_*_BIT flags */
1379 GLbitfield _ReallyEnabled
; /**< 0 or exactly one of TEXTURE_*_BIT flags */
1381 GLenum EnvMode
; /**< GL_MODULATE, GL_DECAL, GL_BLEND, etc. */
1382 GLfloat EnvColor
[4];
1384 struct gl_texgen GenS
;
1385 struct gl_texgen GenT
;
1386 struct gl_texgen GenR
;
1387 struct gl_texgen GenQ
;
1388 GLbitfield TexGenEnabled
; /**< Bitwise-OR of [STRQ]_BIT values */
1389 GLbitfield _GenFlags
; /**< Bitwise-OR of Gen[STRQ]._ModeBit */
1391 GLfloat LodBias
; /**< for biasing mipmap levels */
1393 GLfloat RotMatrix
[4]; /* 2x2 matrix */
1396 * \name GL_EXT_texture_env_combine
1398 struct gl_tex_env_combine_state Combine
;
1401 * Derived state based on \c EnvMode and the \c BaseFormat of the
1402 * currently enabled texture.
1404 struct gl_tex_env_combine_state _EnvMode
;
1407 * Currently enabled combiner state. This will point to either
1408 * \c Combine or \c _EnvMode.
1410 struct gl_tex_env_combine_state
*_CurrentCombine
;
1412 /** Current texture object pointers */
1413 struct gl_texture_object
*CurrentTex
[NUM_TEXTURE_TARGETS
];
1415 /** Points to highest priority, complete and enabled texture object */
1416 struct gl_texture_object
*_Current
;
1418 /** GL_SGI_texture_color_table */
1420 struct gl_color_table ColorTable
;
1421 struct gl_color_table ProxyColorTable
;
1422 GLboolean ColorTableEnabled
;
1428 * Texture attribute group (GL_TEXTURE_BIT).
1430 struct gl_texture_attrib
1432 GLuint CurrentUnit
; /**< GL_ACTIVE_TEXTURE */
1433 struct gl_texture_unit Unit
[MAX_COMBINED_TEXTURE_IMAGE_UNITS
];
1435 struct gl_texture_object
*ProxyTex
[NUM_TEXTURE_TARGETS
];
1437 /** GL_ARB_seamless_cubemap */
1438 GLboolean CubeMapSeamless
;
1440 /** GL_EXT_shared_texture_palette */
1441 GLboolean SharedPalette
;
1442 struct gl_color_table Palette
;
1444 /** Texture units/samplers used by vertex or fragment texturing */
1445 GLbitfield _EnabledUnits
;
1447 /** Texture coord units/sets used for fragment texturing */
1448 GLbitfield _EnabledCoordUnits
;
1450 /** Texture coord units that have texgen enabled */
1451 GLbitfield _TexGenEnabled
;
1453 /** Texture coord units that have non-identity matrices */
1454 GLbitfield _TexMatEnabled
;
1456 /** Bitwise-OR of all Texture.Unit[i]._GenFlags */
1457 GLbitfield _GenFlags
;
1462 * Transformation attribute group (GL_TRANSFORM_BIT).
1464 struct gl_transform_attrib
1466 GLenum MatrixMode
; /**< Matrix mode */
1467 GLfloat EyeUserPlane
[MAX_CLIP_PLANES
][4]; /**< User clip planes */
1468 GLfloat _ClipUserPlane
[MAX_CLIP_PLANES
][4]; /**< derived */
1469 GLbitfield ClipPlanesEnabled
; /**< on/off bitmask */
1470 GLboolean Normalize
; /**< Normalize all normals? */
1471 GLboolean RescaleNormals
; /**< GL_EXT_rescale_normal */
1472 GLboolean RasterPositionUnclipped
; /**< GL_IBM_rasterpos_clip */
1473 GLboolean DepthClamp
; /**< GL_ARB_depth_clamp */
1475 GLfloat CullEyePos
[4];
1476 GLfloat CullObjPos
[4];
1481 * Viewport attribute group (GL_VIEWPORT_BIT).
1483 struct gl_viewport_attrib
1485 GLint X
, Y
; /**< position */
1486 GLsizei Width
, Height
; /**< size */
1487 GLfloat Near
, Far
; /**< Depth buffer range */
1488 GLmatrix _WindowMap
; /**< Mapping transformation as a matrix. */
1493 * GL_ARB_vertex/pixel_buffer_object buffer object
1495 struct gl_buffer_object
1497 _glthread_Mutex Mutex
;
1500 GLenum Usage
; /**< GL_STREAM_DRAW_ARB, GL_STREAM_READ_ARB, etc. */
1501 GLsizeiptrARB Size
; /**< Size of buffer storage in bytes */
1502 GLubyte
*Data
; /**< Location of storage either in RAM or VRAM. */
1503 /** Fields describing a mapped buffer */
1505 GLbitfield AccessFlags
; /**< Mask of GL_MAP_x_BIT flags */
1506 GLvoid
*Pointer
; /**< User-space address of mapping */
1507 GLintptr Offset
; /**< Mapped offset */
1508 GLsizeiptr Length
; /**< Mapped length */
1510 GLboolean Written
; /**< Ever written to? (for debugging) */
1511 GLboolean Purgeable
; /**< Is the buffer purgeable under memory pressure? */
1516 * Client pixel packing/unpacking attributes
1518 struct gl_pixelstore_attrib
1526 GLboolean SwapBytes
;
1528 GLboolean ClientStorage
; /**< GL_APPLE_client_storage */
1529 GLboolean Invert
; /**< GL_MESA_pack_invert */
1530 struct gl_buffer_object
*BufferObj
; /**< GL_ARB_pixel_buffer_object */
1535 * Client vertex array attributes
1537 struct gl_client_array
1539 GLint Size
; /**< components per element (1,2,3,4) */
1540 GLenum Type
; /**< datatype: GL_FLOAT, GL_INT, etc */
1541 GLenum Format
; /**< default: GL_RGBA, but may be GL_BGRA */
1542 GLsizei Stride
; /**< user-specified stride */
1543 GLsizei StrideB
; /**< actual stride in bytes */
1544 const GLubyte
*Ptr
; /**< Points to array data */
1545 GLboolean Enabled
; /**< Enabled flag is a boolean */
1546 GLboolean Normalized
; /**< GL_ARB_vertex_program */
1547 GLboolean Integer
; /**< Integer-valued? */
1548 GLuint _ElementSize
; /**< size of each element in bytes */
1550 struct gl_buffer_object
*BufferObj
;/**< GL_ARB_vertex_buffer_object */
1551 GLuint _MaxElement
; /**< max element index into array buffer + 1 */
1556 * Collection of vertex arrays. Defined by the GL_APPLE_vertex_array_object
1557 * extension, but a nice encapsulation in any case.
1559 struct gl_array_object
1561 /** Name of the array object as received from glGenVertexArrayAPPLE. */
1565 _glthread_Mutex Mutex
;
1566 GLboolean VBOonly
; /**< require all arrays to live in VBOs? */
1568 /** Conventional vertex arrays */
1570 struct gl_client_array Vertex
;
1571 struct gl_client_array Weight
;
1572 struct gl_client_array Normal
;
1573 struct gl_client_array Color
;
1574 struct gl_client_array SecondaryColor
;
1575 struct gl_client_array FogCoord
;
1576 struct gl_client_array Index
;
1577 struct gl_client_array EdgeFlag
;
1578 struct gl_client_array TexCoord
[MAX_TEXTURE_COORD_UNITS
];
1579 struct gl_client_array PointSize
;
1583 * Generic arrays for vertex programs/shaders.
1584 * For NV vertex programs, these attributes alias and take priority
1585 * over the conventional attribs above. For ARB vertex programs and
1586 * GLSL vertex shaders, these attributes are separate.
1588 struct gl_client_array VertexAttrib
[MAX_VERTEX_GENERIC_ATTRIBS
];
1590 /** Mask of _NEW_ARRAY_* values indicating which arrays are enabled */
1591 GLbitfield _Enabled
;
1594 * Min of all enabled arrays' _MaxElement. When arrays reside inside VBOs
1595 * we can determine the max legal (in bounds) glDrawElements array index.
1602 * Vertex array state
1604 struct gl_array_attrib
1606 /** Currently bound array object. See _mesa_BindVertexArrayAPPLE() */
1607 struct gl_array_object
*ArrayObj
;
1609 /** The default vertex array object */
1610 struct gl_array_object
*DefaultArrayObj
;
1612 /** Array objects (GL_ARB/APPLE_vertex_array_object) */
1613 struct _mesa_HashTable
*Objects
;
1615 GLint ActiveTexture
; /**< Client Active Texture */
1616 GLuint LockFirst
; /**< GL_EXT_compiled_vertex_array */
1617 GLuint LockCount
; /**< GL_EXT_compiled_vertex_array */
1619 /** GL 3.1 (slightly different from GL_NV_primitive_restart) */
1620 GLboolean PrimitiveRestart
;
1621 GLuint RestartIndex
;
1623 GLbitfield NewState
; /**< mask of _NEW_ARRAY_* values */
1625 /* GL_ARB_vertex_buffer_object */
1626 struct gl_buffer_object
*ArrayBufferObj
;
1627 struct gl_buffer_object
*ElementArrayBufferObj
;
1632 * Feedback buffer state
1637 GLbitfield _Mask
; /**< FB_* bits */
1645 * Selection buffer state
1649 GLuint
*Buffer
; /**< selection buffer */
1650 GLuint BufferSize
; /**< size of the selection buffer */
1651 GLuint BufferCount
; /**< number of values in the selection buffer */
1652 GLuint Hits
; /**< number of records in the selection buffer */
1653 GLuint NameStackDepth
; /**< name stack depth */
1654 GLuint NameStack
[MAX_NAME_STACK_DEPTH
]; /**< name stack */
1655 GLboolean HitFlag
; /**< hit flag */
1656 GLfloat HitMinZ
; /**< minimum hit depth */
1657 GLfloat HitMaxZ
; /**< maximum hit depth */
1662 * 1-D Evaluator control points
1666 GLuint Order
; /**< Number of control points */
1667 GLfloat u1
, u2
, du
; /**< u1, u2, 1.0/(u2-u1) */
1668 GLfloat
*Points
; /**< Points to contiguous control points */
1673 * 2-D Evaluator control points
1677 GLuint Uorder
; /**< Number of control points in U dimension */
1678 GLuint Vorder
; /**< Number of control points in V dimension */
1681 GLfloat
*Points
; /**< Points to contiguous control points */
1686 * All evaluator control point state
1688 struct gl_evaluators
1694 struct gl_1d_map Map1Vertex3
;
1695 struct gl_1d_map Map1Vertex4
;
1696 struct gl_1d_map Map1Index
;
1697 struct gl_1d_map Map1Color4
;
1698 struct gl_1d_map Map1Normal
;
1699 struct gl_1d_map Map1Texture1
;
1700 struct gl_1d_map Map1Texture2
;
1701 struct gl_1d_map Map1Texture3
;
1702 struct gl_1d_map Map1Texture4
;
1703 struct gl_1d_map Map1Attrib
[16]; /**< GL_NV_vertex_program */
1710 struct gl_2d_map Map2Vertex3
;
1711 struct gl_2d_map Map2Vertex4
;
1712 struct gl_2d_map Map2Index
;
1713 struct gl_2d_map Map2Color4
;
1714 struct gl_2d_map Map2Normal
;
1715 struct gl_2d_map Map2Texture1
;
1716 struct gl_2d_map Map2Texture2
;
1717 struct gl_2d_map Map2Texture3
;
1718 struct gl_2d_map Map2Texture4
;
1719 struct gl_2d_map Map2Attrib
[16]; /**< GL_NV_vertex_program */
1725 * Names of the various vertex/fragment program register files, etc.
1727 * NOTE: first four tokens must fit into 2 bits (see t_vb_arbprogram.c)
1728 * All values should fit in a 4-bit field.
1730 * NOTE: PROGRAM_ENV_PARAM, PROGRAM_STATE_VAR, PROGRAM_NAMED_PARAM,
1731 * PROGRAM_CONSTANT, and PROGRAM_UNIFORM can all be considered to
1732 * be "uniform" variables since they can only be set outside glBegin/End.
1733 * They're also all stored in the same Parameters array.
1737 PROGRAM_TEMPORARY
, /**< machine->Temporary[] */
1738 PROGRAM_INPUT
, /**< machine->Inputs[] */
1739 PROGRAM_OUTPUT
, /**< machine->Outputs[] */
1740 PROGRAM_VARYING
, /**< machine->Inputs[]/Outputs[] */
1741 PROGRAM_LOCAL_PARAM
, /**< gl_program->LocalParams[] */
1742 PROGRAM_ENV_PARAM
, /**< gl_program->Parameters[] */
1743 PROGRAM_STATE_VAR
, /**< gl_program->Parameters[] */
1744 PROGRAM_NAMED_PARAM
, /**< gl_program->Parameters[] */
1745 PROGRAM_CONSTANT
, /**< gl_program->Parameters[] */
1746 PROGRAM_UNIFORM
, /**< gl_program->Parameters[] */
1747 PROGRAM_WRITE_ONLY
, /**< A dummy, write-only register */
1748 PROGRAM_ADDRESS
, /**< machine->AddressReg */
1749 PROGRAM_SAMPLER
, /**< for shader samplers, compile-time only */
1750 PROGRAM_UNDEFINED
, /**< Invalid/TBD value */
1755 /** Vertex and fragment instructions */
1756 struct prog_instruction
;
1757 struct gl_program_parameter_list
;
1758 struct gl_uniform_list
;
1762 * Base class for any kind of program object
1767 GLubyte
*String
; /**< Null-terminated program text */
1769 GLenum Target
; /**< GL_VERTEX/FRAGMENT_PROGRAM_ARB, GL_FRAGMENT_PROGRAM_NV */
1770 GLenum Format
; /**< String encoding format */
1773 struct prog_instruction
*Instructions
;
1775 GLbitfield InputsRead
; /**< Bitmask of which input regs are read */
1776 GLbitfield64 OutputsWritten
; /**< Bitmask of which output regs are written */
1777 GLbitfield InputFlags
[MAX_PROGRAM_INPUTS
]; /**< PROG_PARAM_BIT_x flags */
1778 GLbitfield OutputFlags
[MAX_PROGRAM_OUTPUTS
]; /**< PROG_PARAM_BIT_x flags */
1779 GLbitfield TexturesUsed
[MAX_TEXTURE_UNITS
]; /**< TEXTURE_x_BIT bitmask */
1780 GLbitfield SamplersUsed
; /**< Bitfield of which samplers are used */
1781 GLbitfield ShadowSamplers
; /**< Texture units used for shadow sampling. */
1784 /** Named parameters, constants, etc. from program text */
1785 struct gl_program_parameter_list
*Parameters
;
1786 /** Numbered local parameters */
1787 GLfloat LocalParams
[MAX_PROGRAM_LOCAL_PARAMS
][4];
1789 /** Vertex/fragment shader varying vars */
1790 struct gl_program_parameter_list
*Varying
;
1791 /** Vertex program user-defined attributes */
1792 struct gl_program_parameter_list
*Attributes
;
1794 /** Map from sampler unit to texture unit (set by glUniform1i()) */
1795 GLubyte SamplerUnits
[MAX_SAMPLERS
];
1796 /** Which texture target is being sampled (TEXTURE_1D/2D/3D/etc_INDEX) */
1797 gl_texture_index SamplerTargets
[MAX_SAMPLERS
];
1799 /** Bitmask of which register files are read/written with indirect
1800 * addressing. Mask of (1 << PROGRAM_x) bits.
1802 GLbitfield IndirectRegisterFiles
;
1804 /** Logical counts */
1806 GLuint NumInstructions
;
1807 GLuint NumTemporaries
;
1808 GLuint NumParameters
;
1809 GLuint NumAttributes
;
1810 GLuint NumAddressRegs
;
1811 GLuint NumAluInstructions
;
1812 GLuint NumTexInstructions
;
1813 GLuint NumTexIndirections
;
1815 /** Native, actual h/w counts */
1817 GLuint NumNativeInstructions
;
1818 GLuint NumNativeTemporaries
;
1819 GLuint NumNativeParameters
;
1820 GLuint NumNativeAttributes
;
1821 GLuint NumNativeAddressRegs
;
1822 GLuint NumNativeAluInstructions
;
1823 GLuint NumNativeTexInstructions
;
1824 GLuint NumNativeTexIndirections
;
1829 /** Vertex program object */
1830 struct gl_vertex_program
1832 struct gl_program Base
; /**< base class */
1833 GLboolean IsNVProgram
; /**< is this a GL_NV_vertex_program program? */
1834 GLboolean IsPositionInvariant
;
1838 /** Geometry program object */
1839 struct gl_geometry_program
1841 struct gl_program Base
; /**< base class */
1844 GLenum InputType
; /**< GL_POINTS, GL_LINES, GL_LINES_ADJACENCY_ARB,
1845 GL_TRIANGLES, or GL_TRIANGLES_ADJACENCY_ARB */
1846 GLenum OutputType
; /**< GL_POINTS, GL_LINE_STRIP or GL_TRIANGLE_STRIP */
1850 /** Fragment program object */
1851 struct gl_fragment_program
1853 struct gl_program Base
; /**< base class */
1855 GLboolean UsesKill
; /**< shader uses KIL instruction */
1856 GLboolean OriginUpperLeft
;
1857 GLboolean PixelCenterInteger
;
1862 * State common to vertex and fragment programs.
1864 struct gl_program_state
1866 GLint ErrorPos
; /* GL_PROGRAM_ERROR_POSITION_ARB/NV */
1867 const char *ErrorString
; /* GL_PROGRAM_ERROR_STRING_ARB/NV */
1872 * Context state for vertex programs.
1874 struct gl_vertex_program_state
1876 GLboolean Enabled
; /**< User-set GL_VERTEX_PROGRAM_ARB/NV flag */
1877 GLboolean _Enabled
; /**< Enabled and _valid_ user program? */
1878 GLboolean PointSizeEnabled
; /**< GL_VERTEX_PROGRAM_POINT_SIZE_ARB/NV */
1879 GLboolean TwoSideEnabled
; /**< GL_VERTEX_PROGRAM_TWO_SIDE_ARB/NV */
1880 struct gl_vertex_program
*Current
; /**< User-bound vertex program */
1882 /** Currently enabled and valid vertex program (including internal
1883 * programs, user-defined vertex programs and GLSL vertex shaders).
1884 * This is the program we must use when rendering.
1886 struct gl_vertex_program
*_Current
;
1888 GLfloat Parameters
[MAX_PROGRAM_ENV_PARAMS
][4]; /**< Env params */
1890 /* For GL_NV_vertex_program only: */
1891 GLenum TrackMatrix
[MAX_PROGRAM_ENV_PARAMS
/ 4];
1892 GLenum TrackMatrixTransform
[MAX_PROGRAM_ENV_PARAMS
/ 4];
1894 /** Should fixed-function T&L be implemented with a vertex prog? */
1895 GLboolean _MaintainTnlProgram
;
1897 /** Program to emulate fixed-function T&L (see above) */
1898 struct gl_vertex_program
*_TnlProgram
;
1900 /** Cache of fixed-function programs */
1901 struct gl_program_cache
*Cache
;
1903 GLboolean _Overriden
;
1908 * Context state for geometry programs.
1910 struct gl_geometry_program_state
1912 GLboolean Enabled
; /**< GL_ARB_GEOMETRY_SHADER4 */
1913 GLboolean _Enabled
; /**< Enabled and valid program? */
1914 struct gl_geometry_program
*Current
; /**< user-bound geometry program */
1916 /** Currently enabled and valid program (including internal programs
1917 * and compiled shader programs).
1919 struct gl_geometry_program
*_Current
;
1921 GLfloat Parameters
[MAX_PROGRAM_ENV_PARAMS
][4]; /**< Env params */
1923 /** Cache of fixed-function programs */
1924 struct gl_program_cache
*Cache
;
1928 * Context state for fragment programs.
1930 struct gl_fragment_program_state
1932 GLboolean Enabled
; /**< User-set fragment program enable flag */
1933 GLboolean _Enabled
; /**< Enabled and _valid_ user program? */
1934 struct gl_fragment_program
*Current
; /**< User-bound fragment program */
1936 /** Currently enabled and valid fragment program (including internal
1937 * programs, user-defined fragment programs and GLSL fragment shaders).
1938 * This is the program we must use when rendering.
1940 struct gl_fragment_program
*_Current
;
1942 GLfloat Parameters
[MAX_PROGRAM_ENV_PARAMS
][4]; /**< Env params */
1944 /** Should fixed-function texturing be implemented with a fragment prog? */
1945 GLboolean _MaintainTexEnvProgram
;
1947 /** Program to emulate fixed-function texture env/combine (see above) */
1948 struct gl_fragment_program
*_TexEnvProgram
;
1950 /** Cache of fixed-function programs */
1951 struct gl_program_cache
*Cache
;
1956 * ATI_fragment_shader runtime state
1958 #define ATI_FS_INPUT_PRIMARY 0
1959 #define ATI_FS_INPUT_SECONDARY 1
1961 struct atifs_instruction
;
1962 struct atifs_setupinst
;
1965 * ATI fragment shader
1967 struct ati_fragment_shader
1971 struct atifs_instruction
*Instructions
[2];
1972 struct atifs_setupinst
*SetupInst
[2];
1973 GLfloat Constants
[8][4];
1974 GLbitfield LocalConstDef
; /**< Indicates which constants have been set */
1975 GLubyte numArithInstr
[2];
1976 GLubyte regsAssigned
[2];
1977 GLubyte NumPasses
; /**< 1 or 2 */
1979 GLubyte last_optype
;
1980 GLboolean interpinp1
;
1986 * Context state for GL_ATI_fragment_shader
1988 struct gl_ati_fragment_shader_state
1991 GLboolean _Enabled
; /**< enabled and valid shader? */
1992 GLboolean Compiling
;
1993 GLfloat GlobalConstants
[8][4];
1994 struct ati_fragment_shader
*Current
;
1999 * Occlusion/timer query object.
2001 struct gl_query_object
2003 GLenum Target
; /**< The query target, when active */
2004 GLuint Id
; /**< hash table ID/name */
2005 GLuint64EXT Result
; /**< the counter */
2006 GLboolean Active
; /**< inside Begin/EndQuery */
2007 GLboolean Ready
; /**< result is ready? */
2012 * Context state for query objects.
2014 struct gl_query_state
2016 struct _mesa_HashTable
*QueryObjects
;
2017 struct gl_query_object
*CurrentOcclusionObject
; /* GL_ARB_occlusion_query */
2018 struct gl_query_object
*CurrentTimerObject
; /* GL_EXT_timer_query */
2020 /** GL_NV_conditional_render */
2021 struct gl_query_object
*CondRenderQuery
;
2023 /** GL_EXT_transform_feedback */
2024 struct gl_query_object
*PrimitivesGenerated
;
2025 struct gl_query_object
*PrimitivesWritten
;
2027 /** GL_ARB_timer_query */
2028 struct gl_query_object
*TimeElapsed
;
2030 GLenum CondRenderMode
;
2034 /** Sync object state */
2035 struct gl_sync_object
{
2036 struct simple_node link
;
2037 GLenum Type
; /**< GL_SYNC_FENCE */
2038 GLuint Name
; /**< Fence name */
2039 GLint RefCount
; /**< Reference count */
2040 GLboolean DeletePending
; /**< Object was deleted while there were still
2041 * live references (e.g., sync not yet finished)
2043 GLenum SyncCondition
;
2044 GLbitfield Flags
; /**< Flags passed to glFenceSync */
2045 GLuint StatusFlag
:1; /**< Has the sync object been signaled? */
2049 /** Set by #pragma directives */
2050 struct gl_sl_pragmas
2052 GLboolean IgnoreOptimize
; /**< ignore #pragma optimize(on/off) ? */
2053 GLboolean IgnoreDebug
; /**< ignore #pragma debug(on/off) ? */
2054 GLboolean Optimize
; /**< defaults on */
2055 GLboolean Debug
; /**< defaults off */
2060 * A GLSL vertex or fragment shader object.
2064 GLenum Type
; /**< GL_FRAGMENT_SHADER || GL_VERTEX_SHADER || GL_GEOMETRY_SHADER_ARB (first field!) */
2065 GLuint Name
; /**< AKA the handle */
2066 GLint RefCount
; /**< Reference count */
2067 GLboolean DeletePending
;
2068 GLboolean CompileStatus
;
2069 GLboolean Main
; /**< shader defines main() */
2070 GLboolean UnresolvedRefs
;
2071 const GLchar
*Source
; /**< Source code string */
2072 GLuint SourceChecksum
; /**< for debug/logging purposes */
2073 struct gl_program
*Program
; /**< Post-compile assembly code */
2075 struct gl_sl_pragmas Pragmas
;
2077 unsigned Version
; /**< GLSL version used for linking */
2079 struct exec_list
*ir
;
2080 struct glsl_symbol_table
*symbols
;
2082 /** Shaders containing built-in functions that are used for linking. */
2083 struct gl_shader
*builtins_to_link
[16];
2084 unsigned num_builtins_to_link
;
2089 * A GLSL program object.
2090 * Basically a linked collection of vertex and fragment shaders.
2092 struct gl_shader_program
2094 GLenum Type
; /**< Always GL_SHADER_PROGRAM (internal token) */
2095 GLuint Name
; /**< aka handle or ID */
2096 GLint RefCount
; /**< Reference count */
2097 GLboolean DeletePending
;
2099 GLuint NumShaders
; /**< number of attached shaders */
2100 struct gl_shader
**Shaders
; /**< List of attached the shaders */
2102 /** User-defined attribute bindings (glBindAttribLocation) */
2103 struct gl_program_parameter_list
*Attributes
;
2105 /** Transform feedback varyings */
2109 GLchar
**VaryingNames
; /**< Array [NumVarying] of char * */
2110 } TransformFeedback
;
2112 /** Geometry shader state - copied into gl_geometry_program at link time */
2115 GLenum InputType
; /**< GL_POINTS, GL_LINES, GL_LINES_ADJACENCY_ARB,
2116 GL_TRIANGLES, or GL_TRIANGLES_ADJACENCY_ARB */
2117 GLenum OutputType
; /**< GL_POINTS, GL_LINE_STRIP or GL_TRIANGLE_STRIP */
2120 /* post-link info: */
2121 struct gl_vertex_program
*VertexProgram
; /**< Linked vertex program */
2122 struct gl_fragment_program
*FragmentProgram
; /**< Linked fragment prog */
2123 struct gl_geometry_program
*GeometryProgram
; /**< Linked geometry prog */
2124 struct gl_uniform_list
*Uniforms
;
2125 struct gl_program_parameter_list
*Varying
;
2126 GLboolean LinkStatus
; /**< GL_LINK_STATUS */
2127 GLboolean Validated
;
2128 GLboolean _Used
; /**< Ever used for drawing? */
2131 unsigned Version
; /**< GLSL version used for linking */
2134 * Per-stage shaders resulting from the first stage of linking.
2136 * Set of linked shaders for this program. The array is accessed using the
2137 * \c MESA_SHADER_* defines. Entries for non-existent stages will be
2140 struct gl_shader
*_LinkedShaders
[MESA_SHADER_TYPES
];
2144 #define GLSL_DUMP 0x1 /**< Dump shaders to stdout */
2145 #define GLSL_LOG 0x2 /**< Write shaders to files */
2146 #define GLSL_OPT 0x4 /**< Force optimizations (override pragmas) */
2147 #define GLSL_NO_OPT 0x8 /**< Force no optimizations (override pragmas) */
2148 #define GLSL_UNIFORMS 0x10 /**< Print glUniform calls */
2149 #define GLSL_NOP_VERT 0x20 /**< Force no-op vertex shaders */
2150 #define GLSL_NOP_FRAG 0x40 /**< Force no-op fragment shaders */
2151 #define GLSL_USE_PROG 0x80 /**< Log glUseProgram calls */
2155 * Context state for GLSL vertex/fragment shaders.
2157 struct gl_shader_state
2160 * Programs used for rendering
2162 * There is a separate program set for each shader stage. If
2163 * GL_EXT_separate_shader_objects is not supported, each of these must point
2164 * to \c NULL or to the same program.
2166 struct gl_shader_program
*CurrentVertexProgram
;
2167 struct gl_shader_program
*CurrentGeometryProgram
;
2168 struct gl_shader_program
*CurrentFragmentProgram
;
2171 * Program used by glUniform calls.
2173 * Explicitly set by \c glUseProgram and \c glActiveProgramEXT.
2175 struct gl_shader_program
*ActiveProgram
;
2179 GLbitfield Flags
; /**< Mask of GLSL_x flags */
2183 * Compiler options for a single GLSL shaders type
2185 struct gl_shader_compiler_options
2187 /** Driver-selectable options: */
2188 GLboolean EmitCondCodes
; /**< Use condition codes? */
2189 GLboolean EmitNVTempInitialization
; /**< 0-fill NV temp registers */
2191 * Attempts to flatten all ir_if (OPCODE_IF) for GPUs that can't
2192 * support control flow.
2194 GLboolean EmitNoIfs
;
2195 GLboolean EmitNoLoops
;
2196 GLboolean EmitNoFunctions
;
2197 GLboolean EmitNoCont
; /**< Emit CONT opcode? */
2198 GLboolean EmitNoMainReturn
; /**< Emit CONT/RET opcodes? */
2199 GLboolean EmitNoNoise
; /**< Emit NOISE opcodes? */
2200 GLboolean EmitNoPow
; /**< Emit POW opcodes? */
2203 * \name Forms of indirect addressing the driver cannot do.
2206 GLboolean EmitNoIndirectInput
; /**< No indirect addressing of inputs */
2207 GLboolean EmitNoIndirectOutput
; /**< No indirect addressing of outputs */
2208 GLboolean EmitNoIndirectTemp
; /**< No indirect addressing of temps */
2209 GLboolean EmitNoIndirectUniform
; /**< No indirect addressing of constants */
2212 GLuint MaxUnrollIterations
;
2214 struct gl_sl_pragmas DefaultPragmas
; /**< Default #pragma settings */
2218 * Transform feedback object state
2220 struct gl_transform_feedback_object
2222 GLuint Name
; /**< AKA the object ID */
2224 GLboolean Active
; /**< Is transform feedback enabled? */
2225 GLboolean Paused
; /**< Is transform feedback paused? */
2227 /** The feedback buffers */
2228 GLuint BufferNames
[MAX_FEEDBACK_ATTRIBS
];
2229 struct gl_buffer_object
*Buffers
[MAX_FEEDBACK_ATTRIBS
];
2231 /** Start of feedback data in dest buffer */
2232 GLintptr Offset
[MAX_FEEDBACK_ATTRIBS
];
2233 /** Max data to put into dest buffer (in bytes) */
2234 GLsizeiptr Size
[MAX_FEEDBACK_ATTRIBS
];
2239 * Context state for transform feedback.
2241 struct gl_transform_feedback
2243 GLenum Mode
; /**< GL_POINTS, GL_LINES or GL_TRIANGLES */
2245 GLboolean RasterDiscard
; /**< GL_RASTERIZER_DISCARD */
2247 /** The general binding point (GL_TRANSFORM_FEEDBACK_BUFFER) */
2248 struct gl_buffer_object
*CurrentBuffer
;
2250 /** The table of all transform feedback objects */
2251 struct _mesa_HashTable
*Objects
;
2253 /** The current xform-fb object (GL_TRANSFORM_FEEDBACK_BINDING) */
2254 struct gl_transform_feedback_object
*CurrentObject
;
2256 /** The default xform-fb object (Name==0) */
2257 struct gl_transform_feedback_object
*DefaultObject
;
2263 * State which can be shared by multiple contexts:
2265 struct gl_shared_state
2267 _glthread_Mutex Mutex
; /**< for thread safety */
2268 GLint RefCount
; /**< Reference count */
2269 struct _mesa_HashTable
*DisplayList
; /**< Display lists hash table */
2270 struct _mesa_HashTable
*TexObjects
; /**< Texture objects hash table */
2272 /** Default texture objects (shared by all texture units) */
2273 struct gl_texture_object
*DefaultTex
[NUM_TEXTURE_TARGETS
];
2275 /** Fallback texture used when a bound texture is incomplete */
2276 struct gl_texture_object
*FallbackTex
;
2279 * \name Thread safety and statechange notification for texture
2282 * \todo Improve the granularity of locking.
2285 _glthread_Mutex TexMutex
; /**< texobj thread safety */
2286 GLuint TextureStateStamp
; /**< state notification for shared tex */
2289 /** Default buffer object for vertex arrays that aren't in VBOs */
2290 struct gl_buffer_object
*NullBufferObj
;
2293 * \name Vertex/geometry/fragment programs
2296 struct _mesa_HashTable
*Programs
; /**< All vertex/fragment programs */
2297 struct gl_vertex_program
*DefaultVertexProgram
;
2298 struct gl_fragment_program
*DefaultFragmentProgram
;
2299 struct gl_geometry_program
*DefaultGeometryProgram
;
2302 /* GL_ATI_fragment_shader */
2303 struct _mesa_HashTable
*ATIShaders
;
2304 struct ati_fragment_shader
*DefaultFragmentShader
;
2306 struct _mesa_HashTable
*BufferObjects
;
2308 /** Table of both gl_shader and gl_shader_program objects */
2309 struct _mesa_HashTable
*ShaderObjects
;
2311 /* GL_EXT_framebuffer_object */
2312 struct _mesa_HashTable
*RenderBuffers
;
2313 struct _mesa_HashTable
*FrameBuffers
;
2316 struct simple_node SyncObjects
;
2318 void *DriverData
; /**< Device driver shared state */
2325 * A renderbuffer stores colors or depth values or stencil values.
2326 * A framebuffer object will have a collection of these.
2327 * Data are read/written to the buffer with a handful of Get/Put functions.
2329 * Instances of this object are allocated with the Driver's NewRenderbuffer
2330 * hook. Drivers will likely wrap this class inside a driver-specific
2331 * class to simulate inheritance.
2333 struct gl_renderbuffer
2335 #define RB_MAGIC 0xaabbccdd
2336 int Magic
; /** XXX TEMPORARY DEBUG INFO */
2337 _glthread_Mutex Mutex
; /**< for thread safety */
2338 GLuint ClassID
; /**< Useful for drivers */
2341 GLuint Width
, Height
;
2342 GLboolean Purgeable
; /**< Is the buffer purgeable under memory pressure? */
2344 GLenum InternalFormat
; /**< The user-specified format */
2345 GLenum _BaseFormat
; /**< Either GL_RGB, GL_RGBA, GL_DEPTH_COMPONENT or
2346 GL_STENCIL_INDEX. */
2347 GLuint Format
; /**< The actual format: MESA_FORMAT_x */
2351 GLenum DataType
; /**< Type of values passed to the Get/Put functions */
2352 GLvoid
*Data
; /**< This may not be used by some kinds of RBs */
2354 /* Used to wrap one renderbuffer around another: */
2355 struct gl_renderbuffer
*Wrapped
;
2357 /* Delete this renderbuffer */
2358 void (*Delete
)(struct gl_renderbuffer
*rb
);
2360 /* Allocate new storage for this renderbuffer */
2361 GLboolean (*AllocStorage
)(struct gl_context
*ctx
, struct gl_renderbuffer
*rb
,
2362 GLenum internalFormat
,
2363 GLuint width
, GLuint height
);
2365 /* Lock/Unlock are called before/after calling the Get/Put functions.
2366 * Not sure this is the right place for these yet.
2367 void (*Lock)(struct gl_context *ctx, struct gl_renderbuffer *rb);
2368 void (*Unlock)(struct gl_context *ctx, struct gl_renderbuffer *rb);
2371 /* Return a pointer to the element/pixel at (x,y).
2372 * Should return NULL if the buffer memory can't be directly addressed.
2374 void *(*GetPointer
)(struct gl_context
*ctx
, struct gl_renderbuffer
*rb
,
2377 /* Get/Read a row of values.
2378 * The values will be of format _BaseFormat and type DataType.
2380 void (*GetRow
)(struct gl_context
*ctx
, struct gl_renderbuffer
*rb
, GLuint count
,
2381 GLint x
, GLint y
, void *values
);
2383 /* Get/Read values at arbitrary locations.
2384 * The values will be of format _BaseFormat and type DataType.
2386 void (*GetValues
)(struct gl_context
*ctx
, struct gl_renderbuffer
*rb
, GLuint count
,
2387 const GLint x
[], const GLint y
[], void *values
);
2389 /* Put/Write a row of values.
2390 * The values will be of format _BaseFormat and type DataType.
2392 void (*PutRow
)(struct gl_context
*ctx
, struct gl_renderbuffer
*rb
, GLuint count
,
2393 GLint x
, GLint y
, const void *values
, const GLubyte
*mask
);
2395 /* Put/Write a row of RGB values. This is a special-case routine that's
2396 * only used for RGBA renderbuffers when the source data is GL_RGB. That's
2397 * a common case for glDrawPixels and some triangle routines.
2398 * The values will be of format GL_RGB and type DataType.
2400 void (*PutRowRGB
)(struct gl_context
*ctx
, struct gl_renderbuffer
*rb
, GLuint count
,
2401 GLint x
, GLint y
, const void *values
, const GLubyte
*mask
);
2404 /* Put/Write a row of identical values.
2405 * The values will be of format _BaseFormat and type DataType.
2407 void (*PutMonoRow
)(struct gl_context
*ctx
, struct gl_renderbuffer
*rb
, GLuint count
,
2408 GLint x
, GLint y
, const void *value
, const GLubyte
*mask
);
2410 /* Put/Write values at arbitrary locations.
2411 * The values will be of format _BaseFormat and type DataType.
2413 void (*PutValues
)(struct gl_context
*ctx
, struct gl_renderbuffer
*rb
, GLuint count
,
2414 const GLint x
[], const GLint y
[], const void *values
,
2415 const GLubyte
*mask
);
2416 /* Put/Write identical values at arbitrary locations.
2417 * The values will be of format _BaseFormat and type DataType.
2419 void (*PutMonoValues
)(struct gl_context
*ctx
, struct gl_renderbuffer
*rb
,
2420 GLuint count
, const GLint x
[], const GLint y
[],
2421 const void *value
, const GLubyte
*mask
);
2426 * A renderbuffer attachment points to either a texture object (and specifies
2427 * a mipmap level, cube face or 3D texture slice) or points to a renderbuffer.
2429 struct gl_renderbuffer_attachment
2431 GLenum Type
; /**< \c GL_NONE or \c GL_TEXTURE or \c GL_RENDERBUFFER_EXT */
2435 * If \c Type is \c GL_RENDERBUFFER_EXT, this stores a pointer to the
2436 * application supplied renderbuffer object.
2438 struct gl_renderbuffer
*Renderbuffer
;
2441 * If \c Type is \c GL_TEXTURE, this stores a pointer to the application
2442 * supplied texture object.
2444 struct gl_texture_object
*Texture
;
2445 GLuint TextureLevel
; /**< Attached mipmap level. */
2446 GLuint CubeMapFace
; /**< 0 .. 5, for cube map textures. */
2447 GLuint Zoffset
; /**< Slice for 3D textures, or layer for both 1D
2448 * and 2D array textures */
2453 * A framebuffer is a collection of renderbuffers (color, depth, stencil, etc).
2454 * In C++ terms, think of this as a base class from which device drivers
2455 * will make derived classes.
2457 struct gl_framebuffer
2459 _glthread_Mutex Mutex
; /**< for thread safety */
2461 * If zero, this is a window system framebuffer. If non-zero, this
2462 * is a FBO framebuffer; note that for some devices (i.e. those with
2463 * a natural pixel coordinate system for FBOs that differs from the
2464 * OpenGL/Mesa coordinate system), this means that the viewport,
2465 * polygon face orientation, and polygon stipple will have to be inverted.
2470 GLboolean DeletePending
;
2473 * The framebuffer's visual. Immutable if this is a window system buffer.
2474 * Computed from attachments if user-made FBO.
2476 struct gl_config Visual
;
2478 GLboolean Initialized
;
2480 GLuint Width
, Height
; /**< size of frame buffer in pixels */
2482 /** \name Drawing bounds (Intersection of buffer size and scissor box) */
2484 GLint _Xmin
, _Xmax
; /**< inclusive */
2485 GLint _Ymin
, _Ymax
; /**< exclusive */
2488 /** \name Derived Z buffer stuff */
2490 GLuint _DepthMax
; /**< Max depth buffer value */
2491 GLfloat _DepthMaxF
; /**< Float max depth buffer value */
2492 GLfloat _MRD
; /**< minimum resolvable difference in Z values */
2495 /** One of the GL_FRAMEBUFFER_(IN)COMPLETE_* tokens */
2498 /** Integer color values */
2499 GLboolean _IntegerColor
;
2501 /** Array of all renderbuffer attachments, indexed by BUFFER_* tokens. */
2502 struct gl_renderbuffer_attachment Attachment
[BUFFER_COUNT
];
2504 /* In unextended OpenGL these vars are part of the GL_COLOR_BUFFER
2505 * attribute group and GL_PIXEL attribute group, respectively.
2507 GLenum ColorDrawBuffer
[MAX_DRAW_BUFFERS
];
2508 GLenum ColorReadBuffer
;
2510 /** Computed from ColorDraw/ReadBuffer above */
2511 GLuint _NumColorDrawBuffers
;
2512 GLint _ColorDrawBufferIndexes
[MAX_DRAW_BUFFERS
]; /**< BUFFER_x or -1 */
2513 GLint _ColorReadBufferIndex
; /* -1 = None */
2514 struct gl_renderbuffer
*_ColorDrawBuffers
[MAX_DRAW_BUFFERS
];
2515 struct gl_renderbuffer
*_ColorReadBuffer
;
2517 /** The Actual depth/stencil buffers to use. May be wrappers around the
2518 * depth/stencil buffers attached above. */
2519 struct gl_renderbuffer
*_DepthBuffer
;
2520 struct gl_renderbuffer
*_StencilBuffer
;
2522 /** Delete this framebuffer */
2523 void (*Delete
)(struct gl_framebuffer
*fb
);
2528 * Limits for vertex and fragment programs/shaders.
2530 struct gl_program_constants
2532 /* logical limits */
2533 GLuint MaxInstructions
;
2534 GLuint MaxAluInstructions
;
2535 GLuint MaxTexInstructions
;
2536 GLuint MaxTexIndirections
;
2539 GLuint MaxAddressRegs
;
2540 GLuint MaxParameters
;
2541 GLuint MaxLocalParams
;
2542 GLuint MaxEnvParams
;
2543 /* native/hardware limits */
2544 GLuint MaxNativeInstructions
;
2545 GLuint MaxNativeAluInstructions
;
2546 GLuint MaxNativeTexInstructions
;
2547 GLuint MaxNativeTexIndirections
;
2548 GLuint MaxNativeAttribs
;
2549 GLuint MaxNativeTemps
;
2550 GLuint MaxNativeAddressRegs
;
2551 GLuint MaxNativeParameters
;
2553 GLuint MaxUniformComponents
;
2554 /* GL_ARB_geometry_shader4 */
2555 GLuint MaxGeometryTextureImageUnits
;
2556 GLuint MaxGeometryVaryingComponents
;
2557 GLuint MaxVertexVaryingComponents
;
2558 GLuint MaxGeometryUniformComponents
;
2559 GLuint MaxGeometryOutputVertices
;
2560 GLuint MaxGeometryTotalOutputComponents
;
2565 * Constants which may be overridden by device driver during context creation
2566 * but are never changed after that.
2570 GLint MaxTextureMbytes
; /**< Max memory per image, in MB */
2571 GLint MaxTextureLevels
; /**< Max mipmap levels. */
2572 GLint Max3DTextureLevels
; /**< Max mipmap levels for 3D textures */
2573 GLint MaxCubeTextureLevels
; /**< Max mipmap levels for cube textures */
2574 GLint MaxArrayTextureLayers
; /**< Max layers in array textures */
2575 GLint MaxTextureRectSize
; /**< Max rectangle texture size, in pixes */
2576 GLuint MaxTextureCoordUnits
;
2577 GLuint MaxTextureImageUnits
;
2578 GLuint MaxVertexTextureImageUnits
;
2579 GLuint MaxCombinedTextureImageUnits
;
2580 GLuint MaxTextureUnits
; /**< = MIN(CoordUnits, ImageUnits) */
2581 GLfloat MaxTextureMaxAnisotropy
; /**< GL_EXT_texture_filter_anisotropic */
2582 GLfloat MaxTextureLodBias
; /**< GL_EXT_texture_lod_bias */
2584 GLuint MaxArrayLockSize
;
2588 GLfloat MinPointSize
, MaxPointSize
; /**< aliased */
2589 GLfloat MinPointSizeAA
, MaxPointSizeAA
; /**< antialiased */
2590 GLfloat PointSizeGranularity
;
2591 GLfloat MinLineWidth
, MaxLineWidth
; /**< aliased */
2592 GLfloat MinLineWidthAA
, MaxLineWidthAA
; /**< antialiased */
2593 GLfloat LineWidthGranularity
;
2595 GLuint MaxColorTableSize
;
2597 GLuint MaxClipPlanes
;
2599 GLfloat MaxShininess
; /**< GL_NV_light_max_exponent */
2600 GLfloat MaxSpotExponent
; /**< GL_NV_light_max_exponent */
2602 GLuint MaxViewportWidth
, MaxViewportHeight
;
2604 struct gl_program_constants VertexProgram
; /**< GL_ARB_vertex_program */
2605 struct gl_program_constants FragmentProgram
; /**< GL_ARB_fragment_program */
2606 struct gl_program_constants GeometryProgram
; /**< GL_ARB_geometry_shader4 */
2607 GLuint MaxProgramMatrices
;
2608 GLuint MaxProgramMatrixStackDepth
;
2610 /** vertex array / buffer object bounds checking */
2611 GLboolean CheckArrayBounds
;
2613 GLuint MaxDrawBuffers
; /**< GL_ARB_draw_buffers */
2615 GLuint MaxColorAttachments
; /**< GL_EXT_framebuffer_object */
2616 GLuint MaxRenderbufferSize
; /**< GL_EXT_framebuffer_object */
2617 GLuint MaxSamples
; /**< GL_ARB_framebuffer_object */
2619 GLuint MaxVarying
; /**< Number of float[4] varying parameters */
2621 GLuint GLSLVersion
; /**< GLSL version supported (ex: 120 = 1.20) */
2623 /** Which texture units support GL_ATI_envmap_bumpmap as targets */
2624 GLbitfield SupportedBumpUnits
;
2627 * Maximum amount of time, measured in nanseconds, that the server can wait.
2629 GLuint64 MaxServerWaitTimeout
;
2631 /** GL_EXT_provoking_vertex */
2632 GLboolean QuadsFollowProvokingVertexConvention
;
2634 /** OpenGL version 3.0 */
2635 GLbitfield ContextFlags
; /**< Ex: GL_CONTEXT_FLAG_FORWARD_COMPATIBLE_BIT */
2637 /** OpenGL version 3.2 */
2638 GLbitfield ProfileMask
; /**< Mask of CONTEXT_x_PROFILE_BIT */
2640 /** GL_EXT_transform_feedback */
2641 GLuint MaxTransformFeedbackSeparateAttribs
;
2642 GLuint MaxTransformFeedbackSeparateComponents
;
2643 GLuint MaxTransformFeedbackInterleavedComponents
;
2645 /** GL_EXT_gpu_shader4 */
2646 GLint MinProgramTexelOffset
, MaxProgramTexelOffset
;
2651 * Enable flag for each OpenGL extension. Different device drivers will
2652 * enable different extensions at runtime.
2654 struct gl_extensions
2656 GLboolean dummy
; /* don't remove this! */
2657 GLboolean ARB_blend_func_extended
;
2658 GLboolean ARB_copy_buffer
;
2659 GLboolean ARB_depth_buffer_float
;
2660 GLboolean ARB_depth_clamp
;
2661 GLboolean ARB_depth_texture
;
2662 GLboolean ARB_draw_buffers
;
2663 GLboolean ARB_draw_elements_base_vertex
;
2664 GLboolean ARB_draw_instanced
;
2665 GLboolean ARB_fragment_coord_conventions
;
2666 GLboolean ARB_fragment_program
;
2667 GLboolean ARB_fragment_program_shadow
;
2668 GLboolean ARB_fragment_shader
;
2669 GLboolean ARB_framebuffer_object
;
2670 GLboolean ARB_explicit_attrib_location
;
2671 GLboolean ARB_geometry_shader4
;
2672 GLboolean ARB_half_float_pixel
;
2673 GLboolean ARB_half_float_vertex
;
2674 GLboolean ARB_instanced_arrays
;
2675 GLboolean ARB_map_buffer_range
;
2676 GLboolean ARB_multisample
;
2677 GLboolean ARB_multitexture
;
2678 GLboolean ARB_occlusion_query
;
2679 GLboolean ARB_occlusion_query2
;
2680 GLboolean ARB_point_sprite
;
2681 GLboolean ARB_sampler_objects
;
2682 GLboolean ARB_seamless_cube_map
;
2683 GLboolean ARB_shader_objects
;
2684 GLboolean ARB_shader_stencil_export
;
2685 GLboolean ARB_shading_language_100
;
2686 GLboolean ARB_shadow
;
2687 GLboolean ARB_shadow_ambient
;
2689 GLboolean ARB_texture_border_clamp
;
2690 GLboolean ARB_texture_buffer_object
;
2691 GLboolean ARB_texture_compression
;
2692 GLboolean ARB_texture_compression_rgtc
;
2693 GLboolean ARB_texture_cube_map
;
2694 GLboolean ARB_texture_env_combine
;
2695 GLboolean ARB_texture_env_crossbar
;
2696 GLboolean ARB_texture_env_dot3
;
2697 GLboolean ARB_texture_float
;
2698 GLboolean ARB_texture_mirrored_repeat
;
2699 GLboolean ARB_texture_multisample
;
2700 GLboolean ARB_texture_non_power_of_two
;
2701 GLboolean ARB_texture_rg
;
2702 GLboolean ARB_texture_rgb10_a2ui
;
2703 GLboolean ARB_timer_query
;
2704 GLboolean ARB_transform_feedback2
;
2705 GLboolean ARB_transpose_matrix
;
2706 GLboolean ARB_uniform_buffer_object
;
2707 GLboolean ARB_vertex_array_object
;
2708 GLboolean ARB_vertex_buffer_object
;
2709 GLboolean ARB_vertex_program
;
2710 GLboolean ARB_vertex_shader
;
2711 GLboolean ARB_vertex_type_2_10_10_10_rev
;
2712 GLboolean ARB_window_pos
;
2715 GLboolean EXT_blend_color
;
2716 GLboolean EXT_blend_equation_separate
;
2717 GLboolean EXT_blend_func_separate
;
2718 GLboolean EXT_blend_logic_op
;
2719 GLboolean EXT_blend_minmax
;
2720 GLboolean EXT_blend_subtract
;
2721 GLboolean EXT_clip_volume_hint
;
2722 GLboolean EXT_compiled_vertex_array
;
2723 GLboolean EXT_copy_texture
;
2724 GLboolean EXT_depth_bounds_test
;
2725 GLboolean EXT_draw_buffers2
;
2726 GLboolean EXT_draw_range_elements
;
2727 GLboolean EXT_fog_coord
;
2728 GLboolean EXT_framebuffer_blit
;
2729 GLboolean EXT_framebuffer_multisample
;
2730 GLboolean EXT_framebuffer_object
;
2731 GLboolean EXT_framebuffer_sRGB
;
2732 GLboolean EXT_gpu_program_parameters
;
2733 GLboolean EXT_gpu_shader4
;
2734 GLboolean EXT_multi_draw_arrays
;
2735 GLboolean EXT_paletted_texture
;
2736 GLboolean EXT_packed_depth_stencil
;
2737 GLboolean EXT_packed_float
;
2738 GLboolean EXT_packed_pixels
;
2739 GLboolean EXT_pixel_buffer_object
;
2740 GLboolean EXT_point_parameters
;
2741 GLboolean EXT_polygon_offset
;
2742 GLboolean EXT_provoking_vertex
;
2743 GLboolean EXT_rescale_normal
;
2744 GLboolean EXT_shadow_funcs
;
2745 GLboolean EXT_secondary_color
;
2746 GLboolean EXT_separate_shader_objects
;
2747 GLboolean EXT_separate_specular_color
;
2748 GLboolean EXT_shared_texture_palette
;
2749 GLboolean EXT_stencil_wrap
;
2750 GLboolean EXT_stencil_two_side
;
2751 GLboolean EXT_subtexture
;
2752 GLboolean EXT_texture
;
2753 GLboolean EXT_texture_object
;
2754 GLboolean EXT_texture3D
;
2755 GLboolean EXT_texture_array
;
2756 GLboolean EXT_texture_compression_s3tc
;
2757 GLboolean EXT_texture_env_add
;
2758 GLboolean EXT_texture_env_combine
;
2759 GLboolean EXT_texture_env_dot3
;
2760 GLboolean EXT_texture_filter_anisotropic
;
2761 GLboolean EXT_texture_integer
;
2762 GLboolean EXT_texture_lod_bias
;
2763 GLboolean EXT_texture_mirror_clamp
;
2764 GLboolean EXT_texture_shared_exponent
;
2765 GLboolean EXT_texture_sRGB
;
2766 GLboolean EXT_texture_swizzle
;
2767 GLboolean EXT_transform_feedback
;
2768 GLboolean EXT_timer_query
;
2769 GLboolean EXT_vertex_array
;
2770 GLboolean EXT_vertex_array_bgra
;
2771 GLboolean EXT_vertex_array_set
;
2772 /* vendor extensions */
2773 GLboolean APPLE_client_storage
;
2774 GLboolean APPLE_packed_pixels
;
2775 GLboolean APPLE_vertex_array_object
;
2776 GLboolean APPLE_object_purgeable
;
2777 GLboolean ATI_envmap_bumpmap
;
2778 GLboolean ATI_texture_mirror_once
;
2779 GLboolean ATI_texture_env_combine3
;
2780 GLboolean ATI_fragment_shader
;
2781 GLboolean ATI_separate_stencil
;
2782 GLboolean IBM_rasterpos_clip
;
2783 GLboolean IBM_multimode_draw_arrays
;
2784 GLboolean MESA_pack_invert
;
2785 GLboolean MESA_resize_buffers
;
2786 GLboolean MESA_ycbcr_texture
;
2787 GLboolean MESA_texture_array
;
2788 GLboolean MESA_texture_signed_rgba
;
2789 GLboolean NV_blend_square
;
2790 GLboolean NV_conditional_render
;
2791 GLboolean NV_fragment_program
;
2792 GLboolean NV_fragment_program_option
;
2793 GLboolean NV_light_max_exponent
;
2794 GLboolean NV_point_sprite
;
2795 GLboolean NV_primitive_restart
;
2796 GLboolean NV_texgen_reflection
;
2797 GLboolean NV_texture_env_combine4
;
2798 GLboolean NV_texture_rectangle
;
2799 GLboolean NV_vertex_program
;
2800 GLboolean NV_vertex_program1_1
;
2801 GLboolean OES_read_format
;
2802 GLboolean SGI_texture_color_table
;
2803 GLboolean SGIS_generate_mipmap
;
2804 GLboolean SGIS_texture_edge_clamp
;
2805 GLboolean SGIS_texture_lod
;
2806 GLboolean TDFX_texture_compression_FXT1
;
2808 GLboolean OES_EGL_image
;
2809 GLboolean OES_draw_texture
;
2810 GLboolean EXT_texture_format_BGRA8888
;
2811 /** The extension string */
2812 const GLubyte
*String
;
2813 /** Number of supported extensions */
2819 * A stack of matrices (projection, modelview, color, texture, etc).
2821 struct gl_matrix_stack
2823 GLmatrix
*Top
; /**< points into Stack */
2824 GLmatrix
*Stack
; /**< array [MaxDepth] of GLmatrix */
2825 GLuint Depth
; /**< 0 <= Depth < MaxDepth */
2826 GLuint MaxDepth
; /**< size of Stack[] array */
2827 GLuint DirtyFlag
; /**< _NEW_MODELVIEW or _NEW_PROJECTION, for example */
2832 * \name Bits for image transfer operations
2833 * \sa __struct gl_contextRec::ImageTransferState.
2836 #define IMAGE_SCALE_BIAS_BIT 0x1
2837 #define IMAGE_SHIFT_OFFSET_BIT 0x2
2838 #define IMAGE_MAP_COLOR_BIT 0x4
2839 #define IMAGE_CLAMP_BIT 0x800
2842 /** Pixel Transfer ops */
2843 #define IMAGE_BITS (IMAGE_SCALE_BIAS_BIT | \
2844 IMAGE_SHIFT_OFFSET_BIT | \
2845 IMAGE_MAP_COLOR_BIT)
2848 * \name Bits to indicate what state has changed.
2853 #define _NEW_MODELVIEW 0x1 /**< __struct gl_contextRec::ModelView */
2854 #define _NEW_PROJECTION 0x2 /**< __struct gl_contextRec::Projection */
2855 #define _NEW_TEXTURE_MATRIX 0x4 /**< __struct gl_contextRec::TextureMatrix */
2856 #define _NEW_ACCUM 0x10 /**< __struct gl_contextRec::Accum */
2857 #define _NEW_COLOR 0x20 /**< __struct gl_contextRec::Color */
2858 #define _NEW_DEPTH 0x40 /**< __struct gl_contextRec::Depth */
2859 #define _NEW_EVAL 0x80 /**< __struct gl_contextRec::Eval, __struct gl_contextRec::EvalMap */
2860 #define _NEW_FOG 0x100 /**< __struct gl_contextRec::Fog */
2861 #define _NEW_HINT 0x200 /**< __struct gl_contextRec::Hint */
2862 #define _NEW_LIGHT 0x400 /**< __struct gl_contextRec::Light */
2863 #define _NEW_LINE 0x800 /**< __struct gl_contextRec::Line */
2864 #define _NEW_PIXEL 0x1000 /**< __struct gl_contextRec::Pixel */
2865 #define _NEW_POINT 0x2000 /**< __struct gl_contextRec::Point */
2866 #define _NEW_POLYGON 0x4000 /**< __struct gl_contextRec::Polygon */
2867 #define _NEW_POLYGONSTIPPLE 0x8000 /**< __struct gl_contextRec::PolygonStipple */
2868 #define _NEW_SCISSOR 0x10000 /**< __struct gl_contextRec::Scissor */
2869 #define _NEW_STENCIL 0x20000 /**< __struct gl_contextRec::Stencil */
2870 #define _NEW_TEXTURE 0x40000 /**< __struct gl_contextRec::Texture */
2871 #define _NEW_TRANSFORM 0x80000 /**< __struct gl_contextRec::Transform */
2872 #define _NEW_VIEWPORT 0x100000 /**< __struct gl_contextRec::Viewport */
2873 #define _NEW_PACKUNPACK 0x200000 /**< __struct gl_contextRec::Pack, __struct gl_contextRec::Unpack */
2874 #define _NEW_ARRAY 0x400000 /**< __struct gl_contextRec::Array */
2875 #define _NEW_RENDERMODE 0x800000 /**< __struct gl_contextRec::RenderMode, __struct gl_contextRec::Feedback, __struct gl_contextRec::Select */
2876 #define _NEW_BUFFERS 0x1000000 /**< __struct gl_contextRec::Visual, __struct gl_contextRec::DrawBuffer, */
2877 #define _NEW_MULTISAMPLE 0x2000000 /**< __struct gl_contextRec::Multisample */
2878 #define _NEW_TRACK_MATRIX 0x4000000 /**< __struct gl_contextRec::VertexProgram */
2879 #define _NEW_PROGRAM 0x8000000 /**< __struct gl_contextRec::VertexProgram */
2880 #define _NEW_CURRENT_ATTRIB 0x10000000 /**< __struct gl_contextRec::Current */
2881 #define _NEW_PROGRAM_CONSTANTS 0x20000000
2882 #define _NEW_BUFFER_OBJECT 0x40000000
2888 * \name Bits to track array state changes
2890 * Also used to summarize array enabled.
2893 #define _NEW_ARRAY_VERTEX VERT_BIT_POS
2894 #define _NEW_ARRAY_WEIGHT VERT_BIT_WEIGHT
2895 #define _NEW_ARRAY_NORMAL VERT_BIT_NORMAL
2896 #define _NEW_ARRAY_COLOR0 VERT_BIT_COLOR0
2897 #define _NEW_ARRAY_COLOR1 VERT_BIT_COLOR1
2898 #define _NEW_ARRAY_FOGCOORD VERT_BIT_FOG
2899 #define _NEW_ARRAY_INDEX VERT_BIT_COLOR_INDEX
2900 #define _NEW_ARRAY_EDGEFLAG VERT_BIT_EDGEFLAG
2901 #define _NEW_ARRAY_POINT_SIZE VERT_BIT_COLOR_INDEX /* aliased */
2902 #define _NEW_ARRAY_TEXCOORD_0 VERT_BIT_TEX0
2903 #define _NEW_ARRAY_TEXCOORD_1 VERT_BIT_TEX1
2904 #define _NEW_ARRAY_TEXCOORD_2 VERT_BIT_TEX2
2905 #define _NEW_ARRAY_TEXCOORD_3 VERT_BIT_TEX3
2906 #define _NEW_ARRAY_TEXCOORD_4 VERT_BIT_TEX4
2907 #define _NEW_ARRAY_TEXCOORD_5 VERT_BIT_TEX5
2908 #define _NEW_ARRAY_TEXCOORD_6 VERT_BIT_TEX6
2909 #define _NEW_ARRAY_TEXCOORD_7 VERT_BIT_TEX7
2910 #define _NEW_ARRAY_ATTRIB_0 VERT_BIT_GENERIC0 /* start at bit 16 */
2911 #define _NEW_ARRAY_ALL 0xffffffff
2914 #define _NEW_ARRAY_TEXCOORD(i) (_NEW_ARRAY_TEXCOORD_0 << (i))
2915 #define _NEW_ARRAY_ATTRIB(i) (_NEW_ARRAY_ATTRIB_0 << (i))
2921 * \name A bunch of flags that we think might be useful to drivers.
2923 * Set in the __struct gl_contextRec::_TriangleCaps bitfield.
2926 #define DD_FLATSHADE 0x1
2927 #define DD_SEPARATE_SPECULAR 0x2
2928 #define DD_TRI_CULL_FRONT_BACK 0x4 /* special case on some hw */
2929 #define DD_TRI_LIGHT_TWOSIDE 0x8
2930 #define DD_TRI_UNFILLED 0x10
2931 #define DD_TRI_SMOOTH 0x20
2932 #define DD_TRI_STIPPLE 0x40
2933 #define DD_TRI_OFFSET 0x80
2934 #define DD_LINE_SMOOTH 0x100
2935 #define DD_LINE_STIPPLE 0x200
2936 #define DD_POINT_SMOOTH 0x400
2937 #define DD_POINT_ATTEN 0x800
2938 #define DD_TRI_TWOSTENCIL 0x1000
2943 * \name Define the state changes under which each of these bits might change
2946 #define _DD_NEW_FLATSHADE _NEW_LIGHT
2947 #define _DD_NEW_SEPARATE_SPECULAR (_NEW_LIGHT | _NEW_FOG | _NEW_PROGRAM)
2948 #define _DD_NEW_TRI_CULL_FRONT_BACK _NEW_POLYGON
2949 #define _DD_NEW_TRI_LIGHT_TWOSIDE _NEW_LIGHT
2950 #define _DD_NEW_TRI_UNFILLED _NEW_POLYGON
2951 #define _DD_NEW_TRI_SMOOTH _NEW_POLYGON
2952 #define _DD_NEW_TRI_STIPPLE _NEW_POLYGON
2953 #define _DD_NEW_TRI_OFFSET _NEW_POLYGON
2954 #define _DD_NEW_LINE_SMOOTH _NEW_LINE
2955 #define _DD_NEW_LINE_STIPPLE _NEW_LINE
2956 #define _DD_NEW_LINE_WIDTH _NEW_LINE
2957 #define _DD_NEW_POINT_SMOOTH _NEW_POINT
2958 #define _DD_NEW_POINT_SIZE _NEW_POINT
2959 #define _DD_NEW_POINT_ATTEN _NEW_POINT
2964 * Composite state flags
2967 #define _MESA_NEW_NEED_EYE_COORDS (_NEW_LIGHT | \
2973 #define _MESA_NEW_NEED_NORMALS (_NEW_LIGHT | \
2976 #define _MESA_NEW_TRANSFER_STATE (_NEW_PIXEL)
2982 /* This has to be included here. */
2987 * Display list flags.
2988 * Strictly this is a tnl-private concept, but it doesn't seem
2989 * worthwhile adding a tnl private structure just to hold this one bit
2992 #define DLIST_DANGLING_REFS 0x1
2995 /** Opaque declaration of display list payload data type */
2996 union gl_dlist_node
;
3000 * Provide a location where information about a display list can be
3001 * collected. Could be extended with driverPrivate structures,
3002 * etc. in the future.
3004 struct gl_display_list
3007 GLbitfield Flags
; /**< DLIST_x flags */
3008 /** The dlist commands are in a linked list of nodes */
3009 union gl_dlist_node
*Head
;
3014 * State used during display list compilation and execution.
3016 struct gl_dlist_state
3018 GLuint CallDepth
; /**< Current recursion calling depth */
3020 struct gl_display_list
*CurrentList
; /**< List currently being compiled */
3021 union gl_dlist_node
*CurrentBlock
; /**< Pointer to current block of nodes */
3022 GLuint CurrentPos
; /**< Index into current block of nodes */
3024 GLvertexformat ListVtxfmt
;
3026 GLubyte ActiveAttribSize
[VERT_ATTRIB_MAX
];
3027 GLfloat CurrentAttrib
[VERT_ATTRIB_MAX
][4];
3029 GLubyte ActiveMaterialSize
[MAT_ATTRIB_MAX
];
3030 GLfloat CurrentMaterial
[MAT_ATTRIB_MAX
][4];
3032 GLubyte ActiveIndex
;
3033 GLfloat CurrentIndex
;
3035 GLubyte ActiveEdgeFlag
;
3036 GLboolean CurrentEdgeFlag
;
3039 /* State known to have been set by the currently-compiling display
3040 * list. Used to eliminate some redundant state changes.
3047 * Enum for the OpenGL APIs we know about and may support.
3056 * Mesa rendering context.
3058 * This is the central context data structure for Mesa. Almost all
3059 * OpenGL state is contained in this structure.
3060 * Think of this as a base class from which device drivers will derive
3063 * The struct gl_context typedef names this structure.
3067 /** State possibly shared with other contexts in the address space */
3068 struct gl_shared_state
*Shared
;
3070 /** \name API function pointer tables */
3073 struct _glapi_table
*Save
; /**< Display list save functions */
3074 struct _glapi_table
*Exec
; /**< Execute functions */
3075 struct _glapi_table
*CurrentDispatch
; /**< == Save or Exec !! */
3078 struct gl_config Visual
;
3079 struct gl_framebuffer
*DrawBuffer
; /**< buffer for writing */
3080 struct gl_framebuffer
*ReadBuffer
; /**< buffer for reading */
3081 struct gl_framebuffer
*WinSysDrawBuffer
; /**< set with MakeCurrent */
3082 struct gl_framebuffer
*WinSysReadBuffer
; /**< set with MakeCurrent */
3085 * Device driver function pointer table
3087 struct dd_function_table Driver
;
3089 void *DriverCtx
; /**< Points to device driver context/state */
3091 /** Core/Driver constants */
3092 struct gl_constants Const
;
3094 /** \name The various 4x4 matrix stacks */
3096 struct gl_matrix_stack ModelviewMatrixStack
;
3097 struct gl_matrix_stack ProjectionMatrixStack
;
3098 struct gl_matrix_stack TextureMatrixStack
[MAX_TEXTURE_UNITS
];
3099 struct gl_matrix_stack ProgramMatrixStack
[MAX_PROGRAM_MATRICES
];
3100 struct gl_matrix_stack
*CurrentStack
; /**< Points to one of the above stacks */
3103 /** Combined modelview and projection matrix */
3104 GLmatrix _ModelProjectMatrix
;
3106 /** \name Display lists */
3107 struct gl_dlist_state ListState
;
3109 GLboolean ExecuteFlag
; /**< Execute GL commands? */
3110 GLboolean CompileFlag
; /**< Compile GL commands into display list? */
3112 /** Extension information */
3113 struct gl_extensions Extensions
;
3116 GLuint VersionMajor
, VersionMinor
;
3117 char *VersionString
;
3119 /** \name State attribute stack (for glPush/PopAttrib) */
3121 GLuint AttribStackDepth
;
3122 struct gl_attrib_node
*AttribStack
[MAX_ATTRIB_STACK_DEPTH
];
3125 /** \name Renderer attribute groups
3127 * We define a struct for each attribute group to make pushing and popping
3128 * attributes easy. Also it's a good organization.
3131 struct gl_accum_attrib Accum
; /**< Accum buffer attributes */
3132 struct gl_colorbuffer_attrib Color
; /**< Color buffer attributes */
3133 struct gl_current_attrib Current
; /**< Current attributes */
3134 struct gl_depthbuffer_attrib Depth
; /**< Depth buffer attributes */
3135 struct gl_eval_attrib Eval
; /**< Eval attributes */
3136 struct gl_fog_attrib Fog
; /**< Fog attributes */
3137 struct gl_hint_attrib Hint
; /**< Hint attributes */
3138 struct gl_light_attrib Light
; /**< Light attributes */
3139 struct gl_line_attrib Line
; /**< Line attributes */
3140 struct gl_list_attrib List
; /**< List attributes */
3141 struct gl_multisample_attrib Multisample
;
3142 struct gl_pixel_attrib Pixel
; /**< Pixel attributes */
3143 struct gl_point_attrib Point
; /**< Point attributes */
3144 struct gl_polygon_attrib Polygon
; /**< Polygon attributes */
3145 GLuint PolygonStipple
[32]; /**< Polygon stipple */
3146 struct gl_scissor_attrib Scissor
; /**< Scissor attributes */
3147 struct gl_stencil_attrib Stencil
; /**< Stencil buffer attributes */
3148 struct gl_texture_attrib Texture
; /**< Texture attributes */
3149 struct gl_transform_attrib Transform
; /**< Transformation attributes */
3150 struct gl_viewport_attrib Viewport
; /**< Viewport attributes */
3153 /** \name Client attribute stack */
3155 GLuint ClientAttribStackDepth
;
3156 struct gl_attrib_node
*ClientAttribStack
[MAX_CLIENT_ATTRIB_STACK_DEPTH
];
3159 /** \name Client attribute groups */
3161 struct gl_array_attrib Array
; /**< Vertex arrays */
3162 struct gl_pixelstore_attrib Pack
; /**< Pixel packing */
3163 struct gl_pixelstore_attrib Unpack
; /**< Pixel unpacking */
3164 struct gl_pixelstore_attrib DefaultPacking
; /**< Default params */
3167 /** \name Other assorted state (not pushed/popped on attribute stack) */
3169 struct gl_pixelmaps PixelMaps
;
3171 struct gl_evaluators EvalMap
; /**< All evaluators */
3172 struct gl_feedback Feedback
; /**< Feedback */
3173 struct gl_selection Select
; /**< Selection */
3175 struct gl_program_state Program
; /**< general program state */
3176 struct gl_vertex_program_state VertexProgram
;
3177 struct gl_fragment_program_state FragmentProgram
;
3178 struct gl_geometry_program_state GeometryProgram
;
3179 struct gl_ati_fragment_shader_state ATIFragmentShader
;
3181 struct gl_shader_state Shader
; /**< GLSL shader object state */
3182 struct gl_shader_compiler_options ShaderCompilerOptions
[MESA_SHADER_TYPES
];
3184 struct gl_query_state Query
; /**< occlusion, timer queries */
3186 struct gl_transform_feedback TransformFeedback
;
3188 struct gl_buffer_object
*CopyReadBuffer
; /**< GL_ARB_copy_buffer */
3189 struct gl_buffer_object
*CopyWriteBuffer
; /**< GL_ARB_copy_buffer */
3192 struct gl_meta_state
*Meta
; /**< for "meta" operations */
3194 /* GL_EXT_framebuffer_object */
3195 struct gl_renderbuffer
*CurrentRenderbuffer
;
3197 GLenum ErrorValue
; /**< Last error code */
3200 * Recognize and silence repeated error debug messages in buggy apps.
3202 const char *ErrorDebugFmtString
;
3203 GLuint ErrorDebugCount
;
3205 GLenum RenderMode
; /**< either GL_RENDER, GL_SELECT, GL_FEEDBACK */
3206 GLbitfield NewState
; /**< bitwise-or of _NEW_* flags */
3208 GLboolean ViewportInitialized
; /**< has viewport size been initialized? */
3210 GLbitfield varying_vp_inputs
; /**< mask of VERT_BIT_* flags */
3212 /** \name Derived state */
3214 /** Bitwise-or of DD_* flags. Note that this bitfield may be used before
3215 * state validation so they need to always be current.
3217 GLbitfield _TriangleCaps
;
3218 GLbitfield _ImageTransferState
;/**< bitwise-or of IMAGE_*_BIT flags */
3219 GLfloat _EyeZDir
[3];
3220 GLfloat _ModelViewInvScale
;
3221 GLboolean _NeedEyeCoords
;
3222 GLboolean _ForceEyeCoords
;
3224 GLuint TextureStateTimestamp
; /**< detect changes to shared state */
3226 struct gl_shine_tab
*_ShineTable
[2]; /**< Active shine tables */
3227 struct gl_shine_tab
*_ShineTabList
; /**< MRU list of inactive shine tables */
3230 struct gl_list_extensions
*ListExt
; /**< driver dlist extensions */
3232 /** \name For debugging/development only */
3234 GLboolean FirstTimeCurrent
;
3237 /** Dither disable via MESA_NO_DITHER env var */
3240 /** software compression/decompression supported or not */
3241 GLboolean Mesa_DXTn
;
3244 * Use dp4 (rather than mul/mad) instructions for position
3247 GLboolean mvp_with_dp4
;
3250 * \name Hooks for module contexts.
3252 * These will eventually live in the driver or elsewhere.
3255 void *swrast_context
;
3256 void *swsetup_context
;
3257 void *swtnl_context
;
3259 struct st_context
*st
;
3265 /** The string names for GL_POINT, GL_LINE_LOOP, etc */
3266 extern const char *_mesa_prim_name
[GL_POLYGON
+4];
3270 extern int MESA_VERBOSE
;
3271 extern int MESA_DEBUG_FLAGS
;
3272 # define MESA_FUNCTION __FUNCTION__
3274 # define MESA_VERBOSE 0
3275 # define MESA_DEBUG_FLAGS 0
3276 # define MESA_FUNCTION "a function"
3283 /** The MESA_VERBOSE var is a bitmask of these flags */
3286 VERBOSE_VARRAY
= 0x0001,
3287 VERBOSE_TEXTURE
= 0x0002,
3288 VERBOSE_MATERIAL
= 0x0004,
3289 VERBOSE_PIPELINE
= 0x0008,
3290 VERBOSE_DRIVER
= 0x0010,
3291 VERBOSE_STATE
= 0x0020,
3292 VERBOSE_API
= 0x0040,
3293 VERBOSE_DISPLAY_LIST
= 0x0100,
3294 VERBOSE_LIGHTING
= 0x0200,
3295 VERBOSE_PRIMS
= 0x0400,
3296 VERBOSE_VERTS
= 0x0800,
3297 VERBOSE_DISASSEM
= 0x1000,
3298 VERBOSE_DRAW
= 0x2000,
3299 VERBOSE_SWAPBUFFERS
= 0x4000
3303 /** The MESA_DEBUG_FLAGS var is a bitmask of these flags */
3306 DEBUG_ALWAYS_FLUSH
= 0x1
3311 #endif /* MTYPES_H */