2 * Mesa 3-D graphics library
4 * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
5 * Copyright (C) 2009 VMware, Inc. All Rights Reserved.
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the "Software"),
9 * to deal in the Software without restriction, including without limitation
10 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11 * and/or sell copies of the Software, and to permit persons to whom the
12 * Software is furnished to do so, subject to the following conditions:
14 * The above copyright notice and this permission notice shall be included
15 * in all copies or substantial portions of the Software.
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
21 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
22 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
23 * OTHER DEALINGS IN THE SOFTWARE.
28 * Main Mesa data structures.
30 * Please try to mark derived values with a leading underscore ('_').
37 #include <stdint.h> /* uint32_t */
39 #include "main/glheader.h"
40 #include "main/config.h"
41 #include "glapi/glapi.h"
42 #include "math/m_matrix.h" /* GLmatrix */
43 #include "main/simple_list.h" /* struct simple_node */
44 #include "main/formats.h" /* MESA_FORMAT_COUNT */
53 * \name 64-bit extension of GLbitfield.
56 typedef GLuint64 GLbitfield64
;
58 /** Set a single bit */
59 #define BITFIELD64_BIT(b) ((GLbitfield64)1 << (b))
60 /** Set all bits up to excluding bit b */
61 #define BITFIELD64_MASK(b) \
62 ((b) == 64 ? (~(GLbitfield64)0) : BITFIELD64_BIT(b) - 1)
63 /** Set count bits starting from bit b */
64 #define BITFIELD64_RANGE(b, count) \
65 (BITFIELD64_MASK((b) + (count)) & ~BITFIELD64_MASK(b))
69 * \name Some forward type declarations
72 struct _mesa_HashTable
;
73 struct gl_attrib_node
;
74 struct gl_list_extensions
;
76 struct gl_program_cache
;
77 struct gl_texture_object
;
80 struct gl_uniform_storage
;
81 struct prog_instruction
;
82 struct gl_program_parameter_list
;
89 /** Extra draw modes beyond GL_POINTS, GL_TRIANGLE_FAN, etc */
90 #define PRIM_MAX GL_TRIANGLE_STRIP_ADJACENCY
91 #define PRIM_OUTSIDE_BEGIN_END (PRIM_MAX + 1)
92 #define PRIM_UNKNOWN (PRIM_MAX + 2)
97 * Indexes for vertex program attributes.
98 * GL_NV_vertex_program aliases generic attributes over the conventional
99 * attributes. In GL_ARB_vertex_program shader the aliasing is optional.
100 * In GL_ARB_vertex_shader / OpenGL 2.0 the aliasing is disallowed (the
101 * generic attributes are distinct/separate).
106 VERT_ATTRIB_WEIGHT
= 1,
107 VERT_ATTRIB_NORMAL
= 2,
108 VERT_ATTRIB_COLOR0
= 3,
109 VERT_ATTRIB_COLOR1
= 4,
111 VERT_ATTRIB_COLOR_INDEX
= 6,
112 VERT_ATTRIB_EDGEFLAG
= 7,
113 VERT_ATTRIB_TEX0
= 8,
114 VERT_ATTRIB_TEX1
= 9,
115 VERT_ATTRIB_TEX2
= 10,
116 VERT_ATTRIB_TEX3
= 11,
117 VERT_ATTRIB_TEX4
= 12,
118 VERT_ATTRIB_TEX5
= 13,
119 VERT_ATTRIB_TEX6
= 14,
120 VERT_ATTRIB_TEX7
= 15,
121 VERT_ATTRIB_POINT_SIZE
= 16,
122 VERT_ATTRIB_GENERIC0
= 17,
123 VERT_ATTRIB_GENERIC1
= 18,
124 VERT_ATTRIB_GENERIC2
= 19,
125 VERT_ATTRIB_GENERIC3
= 20,
126 VERT_ATTRIB_GENERIC4
= 21,
127 VERT_ATTRIB_GENERIC5
= 22,
128 VERT_ATTRIB_GENERIC6
= 23,
129 VERT_ATTRIB_GENERIC7
= 24,
130 VERT_ATTRIB_GENERIC8
= 25,
131 VERT_ATTRIB_GENERIC9
= 26,
132 VERT_ATTRIB_GENERIC10
= 27,
133 VERT_ATTRIB_GENERIC11
= 28,
134 VERT_ATTRIB_GENERIC12
= 29,
135 VERT_ATTRIB_GENERIC13
= 30,
136 VERT_ATTRIB_GENERIC14
= 31,
137 VERT_ATTRIB_GENERIC15
= 32,
142 * Symbolic constats to help iterating over
143 * specific blocks of vertex attributes.
146 * includes all fixed function attributes as well as
147 * the aliased GL_NV_vertex_program shader attributes.
149 * include the classic texture coordinate attributes.
150 * Is a subset of VERT_ATTRIB_FF.
151 * VERT_ATTRIB_GENERIC
152 * include the OpenGL 2.0+ GLSL generic shader attributes.
153 * These alias the generic GL_ARB_vertex_shader attributes.
155 #define VERT_ATTRIB_FF(i) (VERT_ATTRIB_POS + (i))
156 #define VERT_ATTRIB_FF_MAX VERT_ATTRIB_GENERIC0
158 #define VERT_ATTRIB_TEX(i) (VERT_ATTRIB_TEX0 + (i))
159 #define VERT_ATTRIB_TEX_MAX MAX_TEXTURE_COORD_UNITS
161 #define VERT_ATTRIB_GENERIC(i) (VERT_ATTRIB_GENERIC0 + (i))
162 #define VERT_ATTRIB_GENERIC_MAX MAX_VERTEX_GENERIC_ATTRIBS
165 * Bitflags for vertex attributes.
166 * These are used in bitfields in many places.
169 #define VERT_BIT_POS BITFIELD64_BIT(VERT_ATTRIB_POS)
170 #define VERT_BIT_WEIGHT BITFIELD64_BIT(VERT_ATTRIB_WEIGHT)
171 #define VERT_BIT_NORMAL BITFIELD64_BIT(VERT_ATTRIB_NORMAL)
172 #define VERT_BIT_COLOR0 BITFIELD64_BIT(VERT_ATTRIB_COLOR0)
173 #define VERT_BIT_COLOR1 BITFIELD64_BIT(VERT_ATTRIB_COLOR1)
174 #define VERT_BIT_FOG BITFIELD64_BIT(VERT_ATTRIB_FOG)
175 #define VERT_BIT_COLOR_INDEX BITFIELD64_BIT(VERT_ATTRIB_COLOR_INDEX)
176 #define VERT_BIT_EDGEFLAG BITFIELD64_BIT(VERT_ATTRIB_EDGEFLAG)
177 #define VERT_BIT_TEX0 BITFIELD64_BIT(VERT_ATTRIB_TEX0)
178 #define VERT_BIT_TEX1 BITFIELD64_BIT(VERT_ATTRIB_TEX1)
179 #define VERT_BIT_TEX2 BITFIELD64_BIT(VERT_ATTRIB_TEX2)
180 #define VERT_BIT_TEX3 BITFIELD64_BIT(VERT_ATTRIB_TEX3)
181 #define VERT_BIT_TEX4 BITFIELD64_BIT(VERT_ATTRIB_TEX4)
182 #define VERT_BIT_TEX5 BITFIELD64_BIT(VERT_ATTRIB_TEX5)
183 #define VERT_BIT_TEX6 BITFIELD64_BIT(VERT_ATTRIB_TEX6)
184 #define VERT_BIT_TEX7 BITFIELD64_BIT(VERT_ATTRIB_TEX7)
185 #define VERT_BIT_POINT_SIZE BITFIELD64_BIT(VERT_ATTRIB_POINT_SIZE)
186 #define VERT_BIT_GENERIC0 BITFIELD64_BIT(VERT_ATTRIB_GENERIC0)
188 #define VERT_BIT(i) BITFIELD64_BIT(i)
189 #define VERT_BIT_ALL BITFIELD64_RANGE(0, VERT_ATTRIB_MAX)
191 #define VERT_BIT_FF(i) VERT_BIT(i)
192 #define VERT_BIT_FF_ALL BITFIELD64_RANGE(0, VERT_ATTRIB_FF_MAX)
193 #define VERT_BIT_TEX(i) VERT_BIT(VERT_ATTRIB_TEX(i))
194 #define VERT_BIT_TEX_ALL \
195 BITFIELD64_RANGE(VERT_ATTRIB_TEX(0), VERT_ATTRIB_TEX_MAX)
197 #define VERT_BIT_GENERIC(i) VERT_BIT(VERT_ATTRIB_GENERIC(i))
198 #define VERT_BIT_GENERIC_ALL \
199 BITFIELD64_RANGE(VERT_ATTRIB_GENERIC(0), VERT_ATTRIB_GENERIC_MAX)
204 * Indexes for vertex shader outputs, geometry shader inputs/outputs, and
205 * fragment shader inputs.
207 * Note that some of these values are not available to all pipeline stages.
209 * When this enum is updated, the following code must be updated too:
210 * - vertResults (in prog_print.c's arb_output_attrib_string())
211 * - fragAttribs (in prog_print.c's arb_input_attrib_string())
212 * - _mesa_varying_slot_in_fs()
217 VARYING_SLOT_COL0
, /* COL0 and COL1 must be contiguous */
220 VARYING_SLOT_TEX0
, /* TEX0-TEX7 must be contiguous */
228 VARYING_SLOT_PSIZ
, /* Does not appear in FS */
229 VARYING_SLOT_BFC0
, /* Does not appear in FS */
230 VARYING_SLOT_BFC1
, /* Does not appear in FS */
231 VARYING_SLOT_EDGE
, /* Does not appear in FS */
232 VARYING_SLOT_CLIP_VERTEX
, /* Does not appear in FS */
233 VARYING_SLOT_CLIP_DIST0
,
234 VARYING_SLOT_CLIP_DIST1
,
235 VARYING_SLOT_PRIMITIVE_ID
, /* Does not appear in VS */
236 VARYING_SLOT_LAYER
, /* Appears as VS or GS output */
237 VARYING_SLOT_FACE
, /* FS only */
238 VARYING_SLOT_PNTC
, /* FS only */
239 VARYING_SLOT_VAR0
, /* First generic varying slot */
240 VARYING_SLOT_MAX
= VARYING_SLOT_VAR0
+ MAX_VARYING
245 * Bitflags for varying slots.
248 #define VARYING_BIT_POS BITFIELD64_BIT(VARYING_SLOT_POS)
249 #define VARYING_BIT_COL0 BITFIELD64_BIT(VARYING_SLOT_COL0)
250 #define VARYING_BIT_COL1 BITFIELD64_BIT(VARYING_SLOT_COL1)
251 #define VARYING_BIT_FOGC BITFIELD64_BIT(VARYING_SLOT_FOGC)
252 #define VARYING_BIT_TEX0 BITFIELD64_BIT(VARYING_SLOT_TEX0)
253 #define VARYING_BIT_TEX1 BITFIELD64_BIT(VARYING_SLOT_TEX1)
254 #define VARYING_BIT_TEX2 BITFIELD64_BIT(VARYING_SLOT_TEX2)
255 #define VARYING_BIT_TEX3 BITFIELD64_BIT(VARYING_SLOT_TEX3)
256 #define VARYING_BIT_TEX4 BITFIELD64_BIT(VARYING_SLOT_TEX4)
257 #define VARYING_BIT_TEX5 BITFIELD64_BIT(VARYING_SLOT_TEX5)
258 #define VARYING_BIT_TEX6 BITFIELD64_BIT(VARYING_SLOT_TEX6)
259 #define VARYING_BIT_TEX7 BITFIELD64_BIT(VARYING_SLOT_TEX7)
260 #define VARYING_BIT_TEX(U) BITFIELD64_BIT(VARYING_SLOT_TEX0 + (U))
261 #define VARYING_BITS_TEX_ANY BITFIELD64_RANGE(VARYING_SLOT_TEX0, \
262 MAX_TEXTURE_COORD_UNITS)
263 #define VARYING_BIT_PSIZ BITFIELD64_BIT(VARYING_SLOT_PSIZ)
264 #define VARYING_BIT_BFC0 BITFIELD64_BIT(VARYING_SLOT_BFC0)
265 #define VARYING_BIT_BFC1 BITFIELD64_BIT(VARYING_SLOT_BFC1)
266 #define VARYING_BIT_EDGE BITFIELD64_BIT(VARYING_SLOT_EDGE)
267 #define VARYING_BIT_CLIP_VERTEX BITFIELD64_BIT(VARYING_SLOT_CLIP_VERTEX)
268 #define VARYING_BIT_CLIP_DIST0 BITFIELD64_BIT(VARYING_SLOT_CLIP_DIST0)
269 #define VARYING_BIT_CLIP_DIST1 BITFIELD64_BIT(VARYING_SLOT_CLIP_DIST1)
270 #define VARYING_BIT_PRIMITIVE_ID BITFIELD64_BIT(VARYING_SLOT_PRIMITIVE_ID)
271 #define VARYING_BIT_LAYER BITFIELD64_BIT(VARYING_SLOT_LAYER)
272 #define VARYING_BIT_FACE BITFIELD64_BIT(VARYING_SLOT_FACE)
273 #define VARYING_BIT_PNTC BITFIELD64_BIT(VARYING_SLOT_PNTC)
274 #define VARYING_BIT_VAR(V) BITFIELD64_BIT(VARYING_SLOT_VAR0 + (V))
278 * Bitflags for system values.
280 #define SYSTEM_BIT_SAMPLE_ID BITFIELD64_BIT(SYSTEM_VALUE_SAMPLE_ID)
281 #define SYSTEM_BIT_SAMPLE_POS BITFIELD64_BIT(SYSTEM_VALUE_SAMPLE_POS)
284 * Determine if the given gl_varying_slot appears in the fragment shader.
286 static inline GLboolean
287 _mesa_varying_slot_in_fs(gl_varying_slot slot
)
290 case VARYING_SLOT_PSIZ
:
291 case VARYING_SLOT_BFC0
:
292 case VARYING_SLOT_BFC1
:
293 case VARYING_SLOT_EDGE
:
294 case VARYING_SLOT_CLIP_VERTEX
:
295 case VARYING_SLOT_LAYER
:
304 * Fragment program results
308 FRAG_RESULT_DEPTH
= 0,
309 FRAG_RESULT_STENCIL
= 1,
310 /* If a single color should be written to all render targets, this
311 * register is written. No FRAG_RESULT_DATAn will be written.
313 FRAG_RESULT_COLOR
= 2,
314 FRAG_RESULT_SAMPLE_MASK
= 3,
316 /* FRAG_RESULT_DATAn are the per-render-target (GLSL gl_FragData[n]
317 * or ARB_fragment_program fragment.color[n]) color results. If
318 * any are written, FRAG_RESULT_COLOR will not be written.
320 FRAG_RESULT_DATA0
= 4,
321 FRAG_RESULT_MAX
= (FRAG_RESULT_DATA0
+ MAX_DRAW_BUFFERS
)
326 * Indexes for all renderbuffers
330 /* the four standard color buffers */
338 /* optional aux buffer */
340 /* generic renderbuffers */
353 * Bit flags for all renderbuffers
355 #define BUFFER_BIT_FRONT_LEFT (1 << BUFFER_FRONT_LEFT)
356 #define BUFFER_BIT_BACK_LEFT (1 << BUFFER_BACK_LEFT)
357 #define BUFFER_BIT_FRONT_RIGHT (1 << BUFFER_FRONT_RIGHT)
358 #define BUFFER_BIT_BACK_RIGHT (1 << BUFFER_BACK_RIGHT)
359 #define BUFFER_BIT_AUX0 (1 << BUFFER_AUX0)
360 #define BUFFER_BIT_AUX1 (1 << BUFFER_AUX1)
361 #define BUFFER_BIT_AUX2 (1 << BUFFER_AUX2)
362 #define BUFFER_BIT_AUX3 (1 << BUFFER_AUX3)
363 #define BUFFER_BIT_DEPTH (1 << BUFFER_DEPTH)
364 #define BUFFER_BIT_STENCIL (1 << BUFFER_STENCIL)
365 #define BUFFER_BIT_ACCUM (1 << BUFFER_ACCUM)
366 #define BUFFER_BIT_COLOR0 (1 << BUFFER_COLOR0)
367 #define BUFFER_BIT_COLOR1 (1 << BUFFER_COLOR1)
368 #define BUFFER_BIT_COLOR2 (1 << BUFFER_COLOR2)
369 #define BUFFER_BIT_COLOR3 (1 << BUFFER_COLOR3)
370 #define BUFFER_BIT_COLOR4 (1 << BUFFER_COLOR4)
371 #define BUFFER_BIT_COLOR5 (1 << BUFFER_COLOR5)
372 #define BUFFER_BIT_COLOR6 (1 << BUFFER_COLOR6)
373 #define BUFFER_BIT_COLOR7 (1 << BUFFER_COLOR7)
376 * Mask of all the color buffer bits (but not accum).
378 #define BUFFER_BITS_COLOR (BUFFER_BIT_FRONT_LEFT | \
379 BUFFER_BIT_BACK_LEFT | \
380 BUFFER_BIT_FRONT_RIGHT | \
381 BUFFER_BIT_BACK_RIGHT | \
383 BUFFER_BIT_COLOR0 | \
384 BUFFER_BIT_COLOR1 | \
385 BUFFER_BIT_COLOR2 | \
386 BUFFER_BIT_COLOR3 | \
387 BUFFER_BIT_COLOR4 | \
388 BUFFER_BIT_COLOR5 | \
389 BUFFER_BIT_COLOR6 | \
394 * Framebuffer configuration (aka visual / pixelformat)
395 * Note: some of these fields should be boolean, but it appears that
396 * code in drivers/dri/common/util.c requires int-sized fields.
402 GLboolean colorIndexMode
; /* XXX is this used anywhere? */
403 GLuint doubleBufferMode
;
406 GLboolean haveAccumBuffer
;
407 GLboolean haveDepthBuffer
;
408 GLboolean haveStencilBuffer
;
410 GLint redBits
, greenBits
, blueBits
, alphaBits
; /* bits per comp */
411 GLuint redMask
, greenMask
, blueMask
, alphaMask
;
412 GLint rgbBits
; /* total bits for rgb */
413 GLint indexBits
; /* total bits for colorindex */
415 GLint accumRedBits
, accumGreenBits
, accumBlueBits
, accumAlphaBits
;
423 /* EXT_visual_rating / GLX 1.2 */
426 /* EXT_visual_info / GLX 1.2 */
427 GLint transparentPixel
;
428 /* colors are floats scaled to ints */
429 GLint transparentRed
, transparentGreen
, transparentBlue
, transparentAlpha
;
430 GLint transparentIndex
;
432 /* ARB_multisample / SGIS_multisample */
436 /* SGIX_pbuffer / GLX 1.3 */
437 GLint maxPbufferWidth
;
438 GLint maxPbufferHeight
;
439 GLint maxPbufferPixels
;
440 GLint optimalPbufferWidth
; /* Only for SGIX_pbuffer. */
441 GLint optimalPbufferHeight
; /* Only for SGIX_pbuffer. */
443 /* OML_swap_method */
446 /* EXT_texture_from_pixmap */
447 GLint bindToTextureRgb
;
448 GLint bindToTextureRgba
;
449 GLint bindToMipmapTexture
;
450 GLint bindToTextureTargets
;
453 /* EXT_framebuffer_sRGB */
459 * \name Bit flags used for updating material values.
462 #define MAT_ATTRIB_FRONT_AMBIENT 0
463 #define MAT_ATTRIB_BACK_AMBIENT 1
464 #define MAT_ATTRIB_FRONT_DIFFUSE 2
465 #define MAT_ATTRIB_BACK_DIFFUSE 3
466 #define MAT_ATTRIB_FRONT_SPECULAR 4
467 #define MAT_ATTRIB_BACK_SPECULAR 5
468 #define MAT_ATTRIB_FRONT_EMISSION 6
469 #define MAT_ATTRIB_BACK_EMISSION 7
470 #define MAT_ATTRIB_FRONT_SHININESS 8
471 #define MAT_ATTRIB_BACK_SHININESS 9
472 #define MAT_ATTRIB_FRONT_INDEXES 10
473 #define MAT_ATTRIB_BACK_INDEXES 11
474 #define MAT_ATTRIB_MAX 12
476 #define MAT_ATTRIB_AMBIENT(f) (MAT_ATTRIB_FRONT_AMBIENT+(f))
477 #define MAT_ATTRIB_DIFFUSE(f) (MAT_ATTRIB_FRONT_DIFFUSE+(f))
478 #define MAT_ATTRIB_SPECULAR(f) (MAT_ATTRIB_FRONT_SPECULAR+(f))
479 #define MAT_ATTRIB_EMISSION(f) (MAT_ATTRIB_FRONT_EMISSION+(f))
480 #define MAT_ATTRIB_SHININESS(f)(MAT_ATTRIB_FRONT_SHININESS+(f))
481 #define MAT_ATTRIB_INDEXES(f) (MAT_ATTRIB_FRONT_INDEXES+(f))
483 #define MAT_INDEX_AMBIENT 0
484 #define MAT_INDEX_DIFFUSE 1
485 #define MAT_INDEX_SPECULAR 2
487 #define MAT_BIT_FRONT_AMBIENT (1<<MAT_ATTRIB_FRONT_AMBIENT)
488 #define MAT_BIT_BACK_AMBIENT (1<<MAT_ATTRIB_BACK_AMBIENT)
489 #define MAT_BIT_FRONT_DIFFUSE (1<<MAT_ATTRIB_FRONT_DIFFUSE)
490 #define MAT_BIT_BACK_DIFFUSE (1<<MAT_ATTRIB_BACK_DIFFUSE)
491 #define MAT_BIT_FRONT_SPECULAR (1<<MAT_ATTRIB_FRONT_SPECULAR)
492 #define MAT_BIT_BACK_SPECULAR (1<<MAT_ATTRIB_BACK_SPECULAR)
493 #define MAT_BIT_FRONT_EMISSION (1<<MAT_ATTRIB_FRONT_EMISSION)
494 #define MAT_BIT_BACK_EMISSION (1<<MAT_ATTRIB_BACK_EMISSION)
495 #define MAT_BIT_FRONT_SHININESS (1<<MAT_ATTRIB_FRONT_SHININESS)
496 #define MAT_BIT_BACK_SHININESS (1<<MAT_ATTRIB_BACK_SHININESS)
497 #define MAT_BIT_FRONT_INDEXES (1<<MAT_ATTRIB_FRONT_INDEXES)
498 #define MAT_BIT_BACK_INDEXES (1<<MAT_ATTRIB_BACK_INDEXES)
501 #define FRONT_MATERIAL_BITS (MAT_BIT_FRONT_EMISSION | \
502 MAT_BIT_FRONT_AMBIENT | \
503 MAT_BIT_FRONT_DIFFUSE | \
504 MAT_BIT_FRONT_SPECULAR | \
505 MAT_BIT_FRONT_SHININESS | \
506 MAT_BIT_FRONT_INDEXES)
508 #define BACK_MATERIAL_BITS (MAT_BIT_BACK_EMISSION | \
509 MAT_BIT_BACK_AMBIENT | \
510 MAT_BIT_BACK_DIFFUSE | \
511 MAT_BIT_BACK_SPECULAR | \
512 MAT_BIT_BACK_SHININESS | \
513 MAT_BIT_BACK_INDEXES)
515 #define ALL_MATERIAL_BITS (FRONT_MATERIAL_BITS | BACK_MATERIAL_BITS)
524 GLfloat Attrib
[MAT_ATTRIB_MAX
][4];
532 #define LIGHT_SPOT 0x1
533 #define LIGHT_LOCAL_VIEWER 0x2
534 #define LIGHT_POSITIONAL 0x4
535 #define LIGHT_NEED_VERTICES (LIGHT_POSITIONAL|LIGHT_LOCAL_VIEWER)
540 * Light source state.
544 struct gl_light
*next
; /**< double linked list with sentinel */
545 struct gl_light
*prev
;
547 GLfloat Ambient
[4]; /**< ambient color */
548 GLfloat Diffuse
[4]; /**< diffuse color */
549 GLfloat Specular
[4]; /**< specular color */
550 GLfloat EyePosition
[4]; /**< position in eye coordinates */
551 GLfloat SpotDirection
[4]; /**< spotlight direction in eye coordinates */
552 GLfloat SpotExponent
;
553 GLfloat SpotCutoff
; /**< in degrees */
554 GLfloat _CosCutoff
; /**< = MAX(0, cos(SpotCutoff)) */
555 GLfloat ConstantAttenuation
;
556 GLfloat LinearAttenuation
;
557 GLfloat QuadraticAttenuation
;
558 GLboolean Enabled
; /**< On/off flag */
561 * \name Derived fields
564 GLbitfield _Flags
; /**< Mask of LIGHT_x bits defined above */
566 GLfloat _Position
[4]; /**< position in eye/obj coordinates */
567 GLfloat _VP_inf_norm
[3]; /**< Norm direction to infinite light */
568 GLfloat _h_inf_norm
[3]; /**< Norm( _VP_inf_norm + <0,0,1> ) */
569 GLfloat _NormSpotDirection
[4]; /**< normalized spotlight direction */
570 GLfloat _VP_inf_spot_attenuation
;
572 GLfloat _MatAmbient
[2][3]; /**< material ambient * light ambient */
573 GLfloat _MatDiffuse
[2][3]; /**< material diffuse * light diffuse */
574 GLfloat _MatSpecular
[2][3]; /**< material spec * light specular */
584 GLfloat Ambient
[4]; /**< ambient color */
585 GLboolean LocalViewer
; /**< Local (or infinite) view point? */
586 GLboolean TwoSide
; /**< Two (or one) sided lighting? */
587 GLenum ColorControl
; /**< either GL_SINGLE_COLOR
588 * or GL_SEPARATE_SPECULAR_COLOR */
593 * Accumulation buffer attribute group (GL_ACCUM_BUFFER_BIT)
595 struct gl_accum_attrib
597 GLfloat ClearColor
[4]; /**< Accumulation buffer clear color */
602 * Used for storing clear color, texture border color, etc.
603 * The float values are typically unclamped.
614 * Color buffer attribute group (GL_COLOR_BUFFER_BIT).
616 struct gl_colorbuffer_attrib
618 GLuint ClearIndex
; /**< Index for glClear */
619 union gl_color_union ClearColor
; /**< Color for glClear, unclamped */
620 GLuint IndexMask
; /**< Color index write mask */
621 GLubyte ColorMask
[MAX_DRAW_BUFFERS
][4]; /**< Each flag is 0xff or 0x0 */
623 GLenum DrawBuffer
[MAX_DRAW_BUFFERS
]; /**< Which buffer to draw into */
626 * \name alpha testing
629 GLboolean AlphaEnabled
; /**< Alpha test enabled flag */
630 GLenum AlphaFunc
; /**< Alpha test function */
631 GLfloat AlphaRefUnclamped
;
632 GLclampf AlphaRef
; /**< Alpha reference value */
639 GLbitfield BlendEnabled
; /**< Per-buffer blend enable flags */
641 /* NOTE: this does _not_ depend on fragment clamping or any other clamping
642 * control, only on the fixed-pointness of the render target.
643 * The query does however depend on fragment color clamping.
645 GLfloat BlendColorUnclamped
[4]; /**< Blending color */
646 GLfloat BlendColor
[4]; /**< Blending color */
650 GLenum SrcRGB
; /**< RGB blend source term */
651 GLenum DstRGB
; /**< RGB blend dest term */
652 GLenum SrcA
; /**< Alpha blend source term */
653 GLenum DstA
; /**< Alpha blend dest term */
654 GLenum EquationRGB
; /**< GL_ADD, GL_SUBTRACT, etc. */
655 GLenum EquationA
; /**< GL_ADD, GL_SUBTRACT, etc. */
657 * Set if any blend factor uses SRC1. Computed at the time blend factors
660 GLboolean _UsesDualSrc
;
661 } Blend
[MAX_DRAW_BUFFERS
];
662 /** Are the blend func terms currently different for each buffer/target? */
663 GLboolean _BlendFuncPerBuffer
;
664 /** Are the blend equations currently different for each buffer/target? */
665 GLboolean _BlendEquationPerBuffer
;
672 GLenum LogicOp
; /**< Logic operator */
673 GLboolean IndexLogicOpEnabled
; /**< Color index logic op enabled flag */
674 GLboolean ColorLogicOpEnabled
; /**< RGBA logic op enabled flag */
677 GLboolean DitherFlag
; /**< Dither enable flag */
679 GLenum ClampFragmentColor
; /**< GL_TRUE, GL_FALSE or GL_FIXED_ONLY_ARB */
680 GLboolean _ClampFragmentColor
; /** < with GL_FIXED_ONLY_ARB resolved */
681 GLenum ClampReadColor
; /**< GL_TRUE, GL_FALSE or GL_FIXED_ONLY_ARB */
683 GLboolean sRGBEnabled
; /**< Framebuffer sRGB blending/updating requested */
688 * Current attribute group (GL_CURRENT_BIT).
690 struct gl_current_attrib
693 * \name Current vertex attributes.
694 * \note Values are valid only after FLUSH_VERTICES has been called.
695 * \note Index and Edgeflag current values are stored as floats in the
696 * SIX and SEVEN attribute slots.
698 GLfloat Attrib
[VERT_ATTRIB_MAX
][4]; /**< Position, color, texcoords, etc */
701 * \name Current raster position attributes (always valid).
702 * \note This set of attributes is very similar to the SWvertex struct.
705 GLfloat RasterPos
[4];
706 GLfloat RasterDistance
;
707 GLfloat RasterColor
[4];
708 GLfloat RasterSecondaryColor
[4];
709 GLfloat RasterTexCoords
[MAX_TEXTURE_COORD_UNITS
][4];
710 GLboolean RasterPosValid
;
716 * Depth buffer attribute group (GL_DEPTH_BUFFER_BIT).
718 struct gl_depthbuffer_attrib
720 GLenum Func
; /**< Function for depth buffer compare */
721 GLclampd Clear
; /**< Value to clear depth buffer to */
722 GLboolean Test
; /**< Depth buffering enabled flag */
723 GLboolean Mask
; /**< Depth buffer writable? */
724 GLboolean BoundsTest
; /**< GL_EXT_depth_bounds_test */
725 GLfloat BoundsMin
, BoundsMax
;/**< GL_EXT_depth_bounds_test */
730 * Evaluator attribute group (GL_EVAL_BIT).
732 struct gl_eval_attrib
738 GLboolean Map1Color4
;
740 GLboolean Map1Normal
;
741 GLboolean Map1TextureCoord1
;
742 GLboolean Map1TextureCoord2
;
743 GLboolean Map1TextureCoord3
;
744 GLboolean Map1TextureCoord4
;
745 GLboolean Map1Vertex3
;
746 GLboolean Map1Vertex4
;
747 GLboolean Map2Color4
;
749 GLboolean Map2Normal
;
750 GLboolean Map2TextureCoord1
;
751 GLboolean Map2TextureCoord2
;
752 GLboolean Map2TextureCoord3
;
753 GLboolean Map2TextureCoord4
;
754 GLboolean Map2Vertex3
;
755 GLboolean Map2Vertex4
;
756 GLboolean AutoNormal
;
760 * \name Map Grid endpoints and divisions and calculated du values
764 GLfloat MapGrid1u1
, MapGrid1u2
, MapGrid1du
;
765 GLint MapGrid2un
, MapGrid2vn
;
766 GLfloat MapGrid2u1
, MapGrid2u2
, MapGrid2du
;
767 GLfloat MapGrid2v1
, MapGrid2v2
, MapGrid2dv
;
773 * Fog attribute group (GL_FOG_BIT).
777 GLboolean Enabled
; /**< Fog enabled flag */
778 GLfloat ColorUnclamped
[4]; /**< Fog color */
779 GLfloat Color
[4]; /**< Fog color */
780 GLfloat Density
; /**< Density >= 0.0 */
781 GLfloat Start
; /**< Start distance in eye coords */
782 GLfloat End
; /**< End distance in eye coords */
783 GLfloat Index
; /**< Fog index */
784 GLenum Mode
; /**< Fog mode */
785 GLboolean ColorSumEnabled
;
786 GLenum FogCoordinateSource
; /**< GL_EXT_fog_coord */
787 GLfloat _Scale
; /**< (End == Start) ? 1.0 : 1.0 / (End - Start) */
788 GLenum FogDistanceMode
; /**< GL_NV_fog_distance */
793 * Hint attribute group (GL_HINT_BIT).
795 * Values are always one of GL_FASTEST, GL_NICEST, or GL_DONT_CARE.
797 struct gl_hint_attrib
799 GLenum PerspectiveCorrection
;
802 GLenum PolygonSmooth
;
804 GLenum TextureCompression
; /**< GL_ARB_texture_compression */
805 GLenum GenerateMipmap
; /**< GL_SGIS_generate_mipmap */
806 GLenum FragmentShaderDerivative
; /**< GL_ARB_fragment_shader */
811 * Lighting attribute group (GL_LIGHT_BIT).
813 struct gl_light_attrib
815 struct gl_light Light
[MAX_LIGHTS
]; /**< Array of light sources */
816 struct gl_lightmodel Model
; /**< Lighting model */
819 * Front and back material values.
820 * Note: must call FLUSH_VERTICES() before using.
822 struct gl_material Material
;
824 GLboolean Enabled
; /**< Lighting enabled flag */
825 GLenum ShadeModel
; /**< GL_FLAT or GL_SMOOTH */
826 GLenum ProvokingVertex
; /**< GL_EXT_provoking_vertex */
827 GLenum ColorMaterialFace
; /**< GL_FRONT, BACK or FRONT_AND_BACK */
828 GLenum ColorMaterialMode
; /**< GL_AMBIENT, GL_DIFFUSE, etc */
829 GLbitfield _ColorMaterialBitmask
; /**< bitmask formed from Face and Mode */
830 GLboolean ColorMaterialEnabled
;
831 GLenum ClampVertexColor
; /**< GL_TRUE, GL_FALSE, GL_FIXED_ONLY */
832 GLboolean _ClampVertexColor
;
834 struct gl_light EnabledList
; /**< List sentinel */
837 * Derived state for optimizations:
840 GLboolean _NeedEyeCoords
;
841 GLboolean _NeedVertices
; /**< Use fast shader? */
842 GLfloat _BaseColor
[2][3];
848 * Line attribute group (GL_LINE_BIT).
850 struct gl_line_attrib
852 GLboolean SmoothFlag
; /**< GL_LINE_SMOOTH enabled? */
853 GLboolean StippleFlag
; /**< GL_LINE_STIPPLE enabled? */
854 GLushort StipplePattern
; /**< Stipple pattern */
855 GLint StippleFactor
; /**< Stipple repeat factor */
856 GLfloat Width
; /**< Line width */
861 * Display list attribute group (GL_LIST_BIT).
863 struct gl_list_attrib
870 * Multisample attribute group (GL_MULTISAMPLE_BIT).
872 struct gl_multisample_attrib
875 GLboolean _Enabled
; /**< true if Enabled and multisample buffer */
876 GLboolean SampleAlphaToCoverage
;
877 GLboolean SampleAlphaToOne
;
878 GLboolean SampleCoverage
;
879 GLfloat SampleCoverageValue
;
880 GLboolean SampleCoverageInvert
;
881 GLboolean SampleShading
;
882 GLfloat MinSampleShadingValue
;
884 /* ARB_texture_multisample / GL3.2 additions */
885 GLboolean SampleMask
;
886 /** The GL spec defines this as an array but >32x MSAA is madness */
887 GLbitfield SampleMaskValue
;
892 * A pixelmap (see glPixelMap)
897 GLfloat Map
[MAX_PIXEL_MAP_TABLE
];
902 * Collection of all pixelmaps
906 struct gl_pixelmap RtoR
; /**< i.e. GL_PIXEL_MAP_R_TO_R */
907 struct gl_pixelmap GtoG
;
908 struct gl_pixelmap BtoB
;
909 struct gl_pixelmap AtoA
;
910 struct gl_pixelmap ItoR
;
911 struct gl_pixelmap ItoG
;
912 struct gl_pixelmap ItoB
;
913 struct gl_pixelmap ItoA
;
914 struct gl_pixelmap ItoI
;
915 struct gl_pixelmap StoS
;
920 * Pixel attribute group (GL_PIXEL_MODE_BIT).
922 struct gl_pixel_attrib
924 GLenum ReadBuffer
; /**< source buffer for glRead/CopyPixels() */
926 /*--- Begin Pixel Transfer State ---*/
927 /* Fields are in the order in which they're applied... */
929 /** Scale & Bias (index shift, offset) */
931 GLfloat RedBias
, RedScale
;
932 GLfloat GreenBias
, GreenScale
;
933 GLfloat BlueBias
, BlueScale
;
934 GLfloat AlphaBias
, AlphaScale
;
935 GLfloat DepthBias
, DepthScale
;
936 GLint IndexShift
, IndexOffset
;
940 /* Note: actual pixel maps are not part of this attrib group */
941 GLboolean MapColorFlag
;
942 GLboolean MapStencilFlag
;
944 /*--- End Pixel Transfer State ---*/
947 GLfloat ZoomX
, ZoomY
;
952 * Point attribute group (GL_POINT_BIT).
954 struct gl_point_attrib
956 GLboolean SmoothFlag
; /**< True if GL_POINT_SMOOTH is enabled */
957 GLfloat Size
; /**< User-specified point size */
958 GLfloat Params
[3]; /**< GL_EXT_point_parameters */
959 GLfloat MinSize
, MaxSize
; /**< GL_EXT_point_parameters */
960 GLfloat Threshold
; /**< GL_EXT_point_parameters */
961 GLboolean _Attenuated
; /**< True if Params != [1, 0, 0] */
962 GLboolean PointSprite
; /**< GL_NV/ARB_point_sprite */
963 GLboolean CoordReplace
[MAX_TEXTURE_COORD_UNITS
]; /**< GL_ARB_point_sprite*/
964 GLenum SpriteRMode
; /**< GL_NV_point_sprite (only!) */
965 GLenum SpriteOrigin
; /**< GL_ARB_point_sprite */
970 * Polygon attribute group (GL_POLYGON_BIT).
972 struct gl_polygon_attrib
974 GLenum FrontFace
; /**< Either GL_CW or GL_CCW */
975 GLenum FrontMode
; /**< Either GL_POINT, GL_LINE or GL_FILL */
976 GLenum BackMode
; /**< Either GL_POINT, GL_LINE or GL_FILL */
977 GLboolean _FrontBit
; /**< 0=GL_CCW, 1=GL_CW */
978 GLboolean CullFlag
; /**< Culling on/off flag */
979 GLboolean SmoothFlag
; /**< True if GL_POLYGON_SMOOTH is enabled */
980 GLboolean StippleFlag
; /**< True if GL_POLYGON_STIPPLE is enabled */
981 GLenum CullFaceMode
; /**< Culling mode GL_FRONT or GL_BACK */
982 GLfloat OffsetFactor
; /**< Polygon offset factor, from user */
983 GLfloat OffsetUnits
; /**< Polygon offset units, from user */
984 GLboolean OffsetPoint
; /**< Offset in GL_POINT mode */
985 GLboolean OffsetLine
; /**< Offset in GL_LINE mode */
986 GLboolean OffsetFill
; /**< Offset in GL_FILL mode */
991 * Scissor attributes (GL_SCISSOR_BIT).
993 struct gl_scissor_attrib
995 GLboolean Enabled
; /**< Scissor test enabled? */
996 GLint X
, Y
; /**< Lower left corner of box */
997 GLsizei Width
, Height
; /**< Size of box */
1002 * Stencil attribute group (GL_STENCIL_BUFFER_BIT).
1004 * Three sets of stencil data are tracked so that OpenGL 2.0,
1005 * GL_EXT_stencil_two_side, and GL_ATI_separate_stencil can all be supported
1006 * simultaneously. In each of the stencil state arrays, element 0 corresponds
1007 * to GL_FRONT. Element 1 corresponds to the OpenGL 2.0 /
1008 * GL_ATI_separate_stencil GL_BACK state. Element 2 corresponds to the
1009 * GL_EXT_stencil_two_side GL_BACK state.
1011 * The derived value \c _BackFace is either 1 or 2 depending on whether or
1012 * not GL_STENCIL_TEST_TWO_SIDE_EXT is enabled.
1014 * The derived value \c _TestTwoSide is set when the front-face and back-face
1015 * stencil state are different.
1017 struct gl_stencil_attrib
1019 GLboolean Enabled
; /**< Enabled flag */
1020 GLboolean TestTwoSide
; /**< GL_EXT_stencil_two_side */
1021 GLubyte ActiveFace
; /**< GL_EXT_stencil_two_side (0 or 2) */
1022 GLboolean _Enabled
; /**< Enabled and stencil buffer present */
1023 GLboolean _WriteEnabled
; /**< _Enabled and non-zero writemasks */
1024 GLboolean _TestTwoSide
;
1025 GLubyte _BackFace
; /**< Current back stencil state (1 or 2) */
1026 GLenum Function
[3]; /**< Stencil function */
1027 GLenum FailFunc
[3]; /**< Fail function */
1028 GLenum ZPassFunc
[3]; /**< Depth buffer pass function */
1029 GLenum ZFailFunc
[3]; /**< Depth buffer fail function */
1030 GLint Ref
[3]; /**< Reference value */
1031 GLuint ValueMask
[3]; /**< Value mask */
1032 GLuint WriteMask
[3]; /**< Write mask */
1033 GLuint Clear
; /**< Clear value */
1038 * An index for each type of texture object. These correspond to the GL
1039 * texture target enums, such as GL_TEXTURE_2D, GL_TEXTURE_CUBE_MAP, etc.
1040 * Note: the order is from highest priority to lowest priority.
1044 TEXTURE_2D_MULTISAMPLE_INDEX
,
1045 TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX
,
1046 TEXTURE_CUBE_ARRAY_INDEX
,
1047 TEXTURE_BUFFER_INDEX
,
1048 TEXTURE_2D_ARRAY_INDEX
,
1049 TEXTURE_1D_ARRAY_INDEX
,
1050 TEXTURE_EXTERNAL_INDEX
,
1061 * Bit flags for each type of texture object
1062 * Used for Texture.Unit[]._ReallyEnabled flags.
1065 #define TEXTURE_2D_MULTISAMPLE_BIT (1 << TEXTURE_2D_MULTISAMPLE_INDEX)
1066 #define TEXTURE_2D_MULTISAMPLE_ARRAY_BIT (1 << TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX)
1067 #define TEXTURE_CUBE_ARRAY_BIT (1 << TEXTURE_CUBE_ARRAY_INDEX)
1068 #define TEXTURE_BUFFER_BIT (1 << TEXTURE_BUFFER_INDEX)
1069 #define TEXTURE_2D_ARRAY_BIT (1 << TEXTURE_2D_ARRAY_INDEX)
1070 #define TEXTURE_1D_ARRAY_BIT (1 << TEXTURE_1D_ARRAY_INDEX)
1071 #define TEXTURE_EXTERNAL_BIT (1 << TEXTURE_EXTERNAL_INDEX)
1072 #define TEXTURE_CUBE_BIT (1 << TEXTURE_CUBE_INDEX)
1073 #define TEXTURE_3D_BIT (1 << TEXTURE_3D_INDEX)
1074 #define TEXTURE_RECT_BIT (1 << TEXTURE_RECT_INDEX)
1075 #define TEXTURE_2D_BIT (1 << TEXTURE_2D_INDEX)
1076 #define TEXTURE_1D_BIT (1 << TEXTURE_1D_INDEX)
1081 * Texture image state. Drivers will typically create a subclass of this
1082 * with extra fields for memory buffers, etc.
1084 struct gl_texture_image
1086 GLint InternalFormat
; /**< Internal format as given by the user */
1087 GLenum _BaseFormat
; /**< Either GL_RGB, GL_RGBA, GL_ALPHA,
1088 * GL_LUMINANCE, GL_LUMINANCE_ALPHA,
1089 * GL_INTENSITY, GL_DEPTH_COMPONENT or
1090 * GL_DEPTH_STENCIL_EXT only. Used for
1091 * choosing TexEnv arithmetic.
1093 gl_format TexFormat
; /**< The actual texture memory format */
1095 GLuint Border
; /**< 0 or 1 */
1096 GLuint Width
; /**< = 2^WidthLog2 + 2*Border */
1097 GLuint Height
; /**< = 2^HeightLog2 + 2*Border */
1098 GLuint Depth
; /**< = 2^DepthLog2 + 2*Border */
1099 GLuint Width2
; /**< = Width - 2*Border */
1100 GLuint Height2
; /**< = Height - 2*Border */
1101 GLuint Depth2
; /**< = Depth - 2*Border */
1102 GLuint WidthLog2
; /**< = log2(Width2) */
1103 GLuint HeightLog2
; /**< = log2(Height2) */
1104 GLuint DepthLog2
; /**< = log2(Depth2) */
1105 GLuint MaxNumLevels
; /**< = maximum possible number of mipmap
1106 levels, computed from the dimensions */
1108 struct gl_texture_object
*TexObject
; /**< Pointer back to parent object */
1109 GLuint Level
; /**< Which mipmap level am I? */
1110 /** Cube map face: index into gl_texture_object::Image[] array */
1113 /** GL_ARB_texture_multisample */
1114 GLuint NumSamples
; /**< Sample count, or 0 for non-multisample */
1115 GLboolean FixedSampleLocations
; /**< Same sample locations for all pixels? */
1120 * Indexes for cube map faces.
1135 * Sampler object state. These objects are new with GL_ARB_sampler_objects
1136 * and OpenGL 3.3. Legacy texture objects also contain a sampler object.
1138 struct gl_sampler_object
1142 GLchar
*Label
; /**< GL_KHR_debug */
1144 GLenum WrapS
; /**< S-axis texture image wrap mode */
1145 GLenum WrapT
; /**< T-axis texture image wrap mode */
1146 GLenum WrapR
; /**< R-axis texture image wrap mode */
1147 GLenum MinFilter
; /**< minification filter */
1148 GLenum MagFilter
; /**< magnification filter */
1149 union gl_color_union BorderColor
; /**< Interpreted according to texture format */
1150 GLfloat MinLod
; /**< min lambda, OpenGL 1.2 */
1151 GLfloat MaxLod
; /**< max lambda, OpenGL 1.2 */
1152 GLfloat LodBias
; /**< OpenGL 1.4 */
1153 GLfloat MaxAnisotropy
; /**< GL_EXT_texture_filter_anisotropic */
1154 GLenum CompareMode
; /**< GL_ARB_shadow */
1155 GLenum CompareFunc
; /**< GL_ARB_shadow */
1156 GLenum sRGBDecode
; /**< GL_DECODE_EXT or GL_SKIP_DECODE_EXT */
1157 GLboolean CubeMapSeamless
; /**< GL_AMD_seamless_cubemap_per_texture */
1162 * Texture object state. Contains the array of mipmap images, border color,
1163 * wrap modes, filter modes, and shadow/texcompare state.
1165 struct gl_texture_object
1167 _glthread_Mutex Mutex
; /**< for thread safety */
1168 GLint RefCount
; /**< reference count */
1169 GLuint Name
; /**< the user-visible texture object ID */
1170 GLchar
*Label
; /**< GL_KHR_debug */
1171 GLenum Target
; /**< GL_TEXTURE_1D, GL_TEXTURE_2D, etc. */
1173 struct gl_sampler_object Sampler
;
1175 GLenum DepthMode
; /**< GL_ARB_depth_texture */
1177 GLfloat Priority
; /**< in [0,1] */
1178 GLint BaseLevel
; /**< min mipmap level, OpenGL 1.2 */
1179 GLint MaxLevel
; /**< max mipmap level, OpenGL 1.2 */
1180 GLint ImmutableLevels
; /**< ES 3.0 / ARB_texture_view */
1181 GLint _MaxLevel
; /**< actual max mipmap level (q in the spec) */
1182 GLfloat _MaxLambda
; /**< = _MaxLevel - BaseLevel (q - p in spec) */
1183 GLint CropRect
[4]; /**< GL_OES_draw_texture */
1184 GLenum Swizzle
[4]; /**< GL_EXT_texture_swizzle */
1185 GLuint _Swizzle
; /**< same as Swizzle, but SWIZZLE_* format */
1186 GLboolean GenerateMipmap
; /**< GL_SGIS_generate_mipmap */
1187 GLboolean _BaseComplete
; /**< Is the base texture level valid? */
1188 GLboolean _MipmapComplete
; /**< Is the whole mipmap valid? */
1189 GLboolean _IsIntegerFormat
; /**< Does the texture store integer values? */
1190 GLboolean _RenderToTexture
; /**< Any rendering to this texture? */
1191 GLboolean Purgeable
; /**< Is the buffer purgeable under memory
1193 GLboolean Immutable
; /**< GL_ARB_texture_storage */
1195 /** Actual texture images, indexed by [cube face] and [mipmap level] */
1196 struct gl_texture_image
*Image
[MAX_FACES
][MAX_TEXTURE_LEVELS
];
1198 /** GL_ARB_texture_buffer_object */
1199 struct gl_buffer_object
*BufferObject
;
1200 GLenum BufferObjectFormat
;
1201 /** Equivalent Mesa format for BufferObjectFormat. */
1202 gl_format _BufferObjectFormat
;
1203 /** GL_ARB_texture_buffer_range */
1204 GLintptr BufferOffset
;
1205 GLsizeiptr BufferSize
; /**< if this is -1, use BufferObject->Size instead */
1207 /** GL_OES_EGL_image_external */
1208 GLint RequiredTextureImageUnits
;
1212 /** Up to four combiner sources are possible with GL_NV_texture_env_combine4 */
1213 #define MAX_COMBINER_TERMS 4
1217 * Texture combine environment state.
1219 struct gl_tex_env_combine_state
1221 GLenum ModeRGB
; /**< GL_REPLACE, GL_DECAL, GL_ADD, etc. */
1222 GLenum ModeA
; /**< GL_REPLACE, GL_DECAL, GL_ADD, etc. */
1223 /** Source terms: GL_PRIMARY_COLOR, GL_TEXTURE, etc */
1224 GLenum SourceRGB
[MAX_COMBINER_TERMS
];
1225 GLenum SourceA
[MAX_COMBINER_TERMS
];
1226 /** Source operands: GL_SRC_COLOR, GL_ONE_MINUS_SRC_COLOR, etc */
1227 GLenum OperandRGB
[MAX_COMBINER_TERMS
];
1228 GLenum OperandA
[MAX_COMBINER_TERMS
];
1229 GLuint ScaleShiftRGB
; /**< 0, 1 or 2 */
1230 GLuint ScaleShiftA
; /**< 0, 1 or 2 */
1231 GLuint _NumArgsRGB
; /**< Number of inputs used for the RGB combiner */
1232 GLuint _NumArgsA
; /**< Number of inputs used for the A combiner */
1237 * TexGenEnabled flags.
1244 #define STR_BITS (S_BIT | T_BIT | R_BIT)
1249 * Bit flag versions of the corresponding GL_ constants.
1252 #define TEXGEN_SPHERE_MAP 0x1
1253 #define TEXGEN_OBJ_LINEAR 0x2
1254 #define TEXGEN_EYE_LINEAR 0x4
1255 #define TEXGEN_REFLECTION_MAP_NV 0x8
1256 #define TEXGEN_NORMAL_MAP_NV 0x10
1258 #define TEXGEN_NEED_NORMALS (TEXGEN_SPHERE_MAP | \
1259 TEXGEN_REFLECTION_MAP_NV | \
1260 TEXGEN_NORMAL_MAP_NV)
1261 #define TEXGEN_NEED_EYE_COORD (TEXGEN_SPHERE_MAP | \
1262 TEXGEN_REFLECTION_MAP_NV | \
1263 TEXGEN_NORMAL_MAP_NV | \
1269 /** Tex-gen enabled for texture unit? */
1270 #define ENABLE_TEXGEN(unit) (1 << (unit))
1272 /** Non-identity texture matrix for texture unit? */
1273 #define ENABLE_TEXMAT(unit) (1 << (unit))
1277 * Texture coord generation state.
1281 GLenum Mode
; /**< GL_EYE_LINEAR, GL_SPHERE_MAP, etc */
1282 GLbitfield _ModeBit
; /**< TEXGEN_x bit corresponding to Mode */
1283 GLfloat ObjectPlane
[4];
1284 GLfloat EyePlane
[4];
1289 * Texture unit state. Contains enable flags, texture environment/function/
1290 * combiners, texgen state, and pointers to current texture objects.
1292 struct gl_texture_unit
1294 GLbitfield Enabled
; /**< bitmask of TEXTURE_*_BIT flags */
1295 GLbitfield _ReallyEnabled
; /**< 0 or exactly one of TEXTURE_*_BIT flags */
1297 GLenum EnvMode
; /**< GL_MODULATE, GL_DECAL, GL_BLEND, etc. */
1298 GLclampf EnvColor
[4];
1299 GLfloat EnvColorUnclamped
[4];
1301 struct gl_texgen GenS
;
1302 struct gl_texgen GenT
;
1303 struct gl_texgen GenR
;
1304 struct gl_texgen GenQ
;
1305 GLbitfield TexGenEnabled
; /**< Bitwise-OR of [STRQ]_BIT values */
1306 GLbitfield _GenFlags
; /**< Bitwise-OR of Gen[STRQ]._ModeBit */
1308 GLfloat LodBias
; /**< for biasing mipmap levels */
1310 GLfloat RotMatrix
[4]; /* 2x2 matrix */
1312 /** Current sampler object (GL_ARB_sampler_objects) */
1313 struct gl_sampler_object
*Sampler
;
1316 * \name GL_EXT_texture_env_combine
1318 struct gl_tex_env_combine_state Combine
;
1321 * Derived state based on \c EnvMode and the \c BaseFormat of the
1322 * currently enabled texture.
1324 struct gl_tex_env_combine_state _EnvMode
;
1327 * Currently enabled combiner state. This will point to either
1328 * \c Combine or \c _EnvMode.
1330 struct gl_tex_env_combine_state
*_CurrentCombine
;
1332 /** Current texture object pointers */
1333 struct gl_texture_object
*CurrentTex
[NUM_TEXTURE_TARGETS
];
1335 /** Points to highest priority, complete and enabled texture object */
1336 struct gl_texture_object
*_Current
;
1341 * Texture attribute group (GL_TEXTURE_BIT).
1343 struct gl_texture_attrib
1345 GLuint CurrentUnit
; /**< GL_ACTIVE_TEXTURE */
1346 struct gl_texture_unit Unit
[MAX_COMBINED_TEXTURE_IMAGE_UNITS
];
1348 struct gl_texture_object
*ProxyTex
[NUM_TEXTURE_TARGETS
];
1350 /** GL_ARB_texture_buffer_object */
1351 struct gl_buffer_object
*BufferObject
;
1353 /** GL_ARB_seamless_cubemap */
1354 GLboolean CubeMapSeamless
;
1356 /** Texture units/samplers used by vertex or fragment texturing */
1357 GLbitfield _EnabledUnits
;
1359 /** Texture coord units/sets used for fragment texturing */
1360 GLbitfield _EnabledCoordUnits
;
1362 /** Texture coord units that have texgen enabled */
1363 GLbitfield _TexGenEnabled
;
1365 /** Texture coord units that have non-identity matrices */
1366 GLbitfield _TexMatEnabled
;
1368 /** Bitwise-OR of all Texture.Unit[i]._GenFlags */
1369 GLbitfield _GenFlags
;
1374 * Data structure representing a single clip plane (e.g. one of the elements
1375 * of the ctx->Transform.EyeUserPlane or ctx->Transform._ClipUserPlane array).
1377 typedef GLfloat gl_clip_plane
[4];
1381 * Transformation attribute group (GL_TRANSFORM_BIT).
1383 struct gl_transform_attrib
1385 GLenum MatrixMode
; /**< Matrix mode */
1386 gl_clip_plane EyeUserPlane
[MAX_CLIP_PLANES
]; /**< User clip planes */
1387 gl_clip_plane _ClipUserPlane
[MAX_CLIP_PLANES
]; /**< derived */
1388 GLbitfield ClipPlanesEnabled
; /**< on/off bitmask */
1389 GLboolean Normalize
; /**< Normalize all normals? */
1390 GLboolean RescaleNormals
; /**< GL_EXT_rescale_normal */
1391 GLboolean RasterPositionUnclipped
; /**< GL_IBM_rasterpos_clip */
1392 GLboolean DepthClamp
; /**< GL_ARB_depth_clamp */
1394 GLfloat CullEyePos
[4];
1395 GLfloat CullObjPos
[4];
1400 * Viewport attribute group (GL_VIEWPORT_BIT).
1402 struct gl_viewport_attrib
1404 GLint X
, Y
; /**< position */
1405 GLsizei Width
, Height
; /**< size */
1406 GLfloat Near
, Far
; /**< Depth buffer range */
1407 GLmatrix _WindowMap
; /**< Mapping transformation as a matrix. */
1412 * GL_ARB_vertex/pixel_buffer_object buffer object
1414 struct gl_buffer_object
1416 _glthread_Mutex Mutex
;
1419 GLchar
*Label
; /**< GL_KHR_debug */
1420 GLenum Usage
; /**< GL_STREAM_DRAW_ARB, GL_STREAM_READ_ARB, etc. */
1421 GLsizeiptrARB Size
; /**< Size of buffer storage in bytes */
1422 GLubyte
*Data
; /**< Location of storage either in RAM or VRAM. */
1423 /** Fields describing a mapped buffer */
1425 GLbitfield AccessFlags
; /**< Mask of GL_MAP_x_BIT flags */
1426 GLvoid
*Pointer
; /**< User-space address of mapping */
1427 GLintptr Offset
; /**< Mapped offset */
1428 GLsizeiptr Length
; /**< Mapped length */
1430 GLboolean DeletePending
; /**< true if buffer object is removed from the hash */
1431 GLboolean Written
; /**< Ever written to? (for debugging) */
1432 GLboolean Purgeable
; /**< Is the buffer purgeable under memory pressure? */
1437 * Client pixel packing/unpacking attributes
1439 struct gl_pixelstore_attrib
1447 GLboolean SwapBytes
;
1449 GLboolean Invert
; /**< GL_MESA_pack_invert */
1450 struct gl_buffer_object
*BufferObj
; /**< GL_ARB_pixel_buffer_object */
1455 * Client vertex array attributes
1457 struct gl_client_array
1459 GLint Size
; /**< components per element (1,2,3,4) */
1460 GLenum Type
; /**< datatype: GL_FLOAT, GL_INT, etc */
1461 GLenum Format
; /**< default: GL_RGBA, but may be GL_BGRA */
1462 GLsizei Stride
; /**< user-specified stride */
1463 GLsizei StrideB
; /**< actual stride in bytes */
1464 const GLubyte
*Ptr
; /**< Points to array data */
1465 GLboolean Enabled
; /**< Enabled flag is a boolean */
1466 GLboolean Normalized
; /**< GL_ARB_vertex_program */
1467 GLboolean Integer
; /**< Integer-valued? */
1468 GLuint InstanceDivisor
; /**< GL_ARB_instanced_arrays */
1469 GLuint _ElementSize
; /**< size of each element in bytes */
1471 struct gl_buffer_object
*BufferObj
;/**< GL_ARB_vertex_buffer_object */
1472 GLuint _MaxElement
; /**< max element index into array buffer + 1 */
1477 * Vertex attribute array as seen by the client.
1479 * Contains the size, type, format and normalization flag,
1480 * along with the index of a vertex buffer binding point.
1482 * Note that the Stride field corresponds to VERTEX_ATTRIB_ARRAY_STRIDE
1483 * and is only present for backwards compatibility reasons.
1484 * Rendering always uses VERTEX_BINDING_STRIDE.
1485 * The gl*Pointer() functions will set VERTEX_ATTRIB_ARRAY_STRIDE
1486 * and VERTEX_BINDING_STRIDE to the same value, while
1487 * glBindVertexBuffer() will only set VERTEX_BINDING_STRIDE.
1489 struct gl_vertex_attrib_array
1491 GLint Size
; /**< Components per element (1,2,3,4) */
1492 GLenum Type
; /**< Datatype: GL_FLOAT, GL_INT, etc */
1493 GLenum Format
; /**< Default: GL_RGBA, but may be GL_BGRA */
1494 GLsizei Stride
; /**< Stride as specified with gl*Pointer() */
1495 const GLubyte
*Ptr
; /**< Points to client array data. Not used when a VBO is bound */
1496 GLintptr RelativeOffset
; /**< Offset of the first element relative to the binding offset */
1497 GLboolean Enabled
; /**< Whether the array is enabled */
1498 GLboolean Normalized
; /**< Fixed-point values are normalized when converted to floats */
1499 GLboolean Integer
; /**< Fixed-point values are not converted to floats */
1500 GLuint _ElementSize
; /**< Size of each element in bytes */
1501 GLuint VertexBinding
; /**< Vertex buffer binding */
1504 struct gl_vertex_buffer_binding
1506 GLintptr Offset
; /**< User-specified offset */
1507 GLsizei Stride
; /**< User-specified stride */
1508 GLuint InstanceDivisor
; /**< GL_ARB_instanced_arrays */
1509 struct gl_buffer_object
*BufferObj
; /**< GL_ARB_vertex_buffer_object */
1510 GLbitfield64 _BoundArrays
; /**< Arrays bound to this binding point */
1515 * Collection of vertex arrays. Defined by the GL_APPLE_vertex_array_object
1516 * extension, but a nice encapsulation in any case.
1518 struct gl_array_object
1520 /** Name of the array object as received from glGenVertexArrayAPPLE. */
1522 GLchar
*Label
; /**< GL_KHR_debug */
1525 _glthread_Mutex Mutex
;
1528 * Does the VAO use ARB semantics or Apple semantics?
1530 * There are several ways in which ARB_vertex_array_object and
1531 * APPLE_vertex_array_object VAOs have differing semantics. At the very
1534 * - ARB VAOs require that all array data be sourced from vertex buffer
1535 * objects, but Apple VAOs do not.
1537 * - ARB VAOs require that names come from GenVertexArrays.
1539 * This flag notes which behavior governs this VAO.
1541 GLboolean ARBsemantics
;
1544 * Has this array object been bound?
1546 GLboolean EverBound
;
1548 /** Derived vertex attribute arrays */
1549 struct gl_client_array _VertexAttrib
[VERT_ATTRIB_MAX
];
1551 /** Vertex attribute arrays */
1552 struct gl_vertex_attrib_array VertexAttrib
[VERT_ATTRIB_MAX
];
1554 /** Vertex buffer bindings */
1555 struct gl_vertex_buffer_binding VertexBinding
[VERT_ATTRIB_MAX
];
1557 /** Mask of VERT_BIT_* values indicating which arrays are enabled */
1558 GLbitfield64 _Enabled
;
1560 /** Mask of VERT_BIT_* values indicating changed/dirty arrays */
1561 GLbitfield64 NewArrays
;
1564 * Min of all enabled arrays' _MaxElement. When arrays reside inside VBOs
1565 * we can determine the max legal (in bounds) glDrawElements array index.
1569 struct gl_buffer_object
*ElementArrayBufferObj
;
1574 * Vertex array state
1576 struct gl_array_attrib
1578 /** Currently bound array object. See _mesa_BindVertexArrayAPPLE() */
1579 struct gl_array_object
*ArrayObj
;
1581 /** The default vertex array object */
1582 struct gl_array_object
*DefaultArrayObj
;
1584 /** Array objects (GL_ARB/APPLE_vertex_array_object) */
1585 struct _mesa_HashTable
*Objects
;
1587 GLint ActiveTexture
; /**< Client Active Texture */
1588 GLuint LockFirst
; /**< GL_EXT_compiled_vertex_array */
1589 GLuint LockCount
; /**< GL_EXT_compiled_vertex_array */
1592 * \name Primitive restart controls
1594 * Primitive restart is enabled if either \c PrimitiveRestart or
1595 * \c PrimitiveRestartFixedIndex is set.
1598 GLboolean PrimitiveRestart
;
1599 GLboolean PrimitiveRestartFixedIndex
;
1600 GLboolean _PrimitiveRestart
;
1601 GLuint RestartIndex
;
1604 /* GL_ARB_vertex_buffer_object */
1605 struct gl_buffer_object
*ArrayBufferObj
;
1608 * Vertex arrays as consumed by a driver.
1609 * The array pointer is set up only by the VBO module.
1611 const struct gl_client_array
**_DrawArrays
; /**< 0..VERT_ATTRIB_MAX-1 */
1616 * Feedback buffer state
1621 GLbitfield _Mask
; /**< FB_* bits */
1629 * Selection buffer state
1633 GLuint
*Buffer
; /**< selection buffer */
1634 GLuint BufferSize
; /**< size of the selection buffer */
1635 GLuint BufferCount
; /**< number of values in the selection buffer */
1636 GLuint Hits
; /**< number of records in the selection buffer */
1637 GLuint NameStackDepth
; /**< name stack depth */
1638 GLuint NameStack
[MAX_NAME_STACK_DEPTH
]; /**< name stack */
1639 GLboolean HitFlag
; /**< hit flag */
1640 GLfloat HitMinZ
; /**< minimum hit depth */
1641 GLfloat HitMaxZ
; /**< maximum hit depth */
1646 * 1-D Evaluator control points
1650 GLuint Order
; /**< Number of control points */
1651 GLfloat u1
, u2
, du
; /**< u1, u2, 1.0/(u2-u1) */
1652 GLfloat
*Points
; /**< Points to contiguous control points */
1657 * 2-D Evaluator control points
1661 GLuint Uorder
; /**< Number of control points in U dimension */
1662 GLuint Vorder
; /**< Number of control points in V dimension */
1665 GLfloat
*Points
; /**< Points to contiguous control points */
1670 * All evaluator control point state
1672 struct gl_evaluators
1678 struct gl_1d_map Map1Vertex3
;
1679 struct gl_1d_map Map1Vertex4
;
1680 struct gl_1d_map Map1Index
;
1681 struct gl_1d_map Map1Color4
;
1682 struct gl_1d_map Map1Normal
;
1683 struct gl_1d_map Map1Texture1
;
1684 struct gl_1d_map Map1Texture2
;
1685 struct gl_1d_map Map1Texture3
;
1686 struct gl_1d_map Map1Texture4
;
1693 struct gl_2d_map Map2Vertex3
;
1694 struct gl_2d_map Map2Vertex4
;
1695 struct gl_2d_map Map2Index
;
1696 struct gl_2d_map Map2Color4
;
1697 struct gl_2d_map Map2Normal
;
1698 struct gl_2d_map Map2Texture1
;
1699 struct gl_2d_map Map2Texture2
;
1700 struct gl_2d_map Map2Texture3
;
1701 struct gl_2d_map Map2Texture4
;
1706 struct gl_transform_feedback_varying_info
1715 * Per-output info vertex shaders for transform feedback.
1717 struct gl_transform_feedback_output
1719 unsigned OutputRegister
;
1720 unsigned OutputBuffer
;
1721 unsigned NumComponents
;
1723 /** offset (in DWORDs) of this output within the interleaved structure */
1727 * Offset into the output register of the data to output. For example,
1728 * if NumComponents is 2 and ComponentOffset is 1, then the data to
1729 * offset is in the y and z components of the output register.
1731 unsigned ComponentOffset
;
1735 /** Post-link transform feedback info. */
1736 struct gl_transform_feedback_info
1738 unsigned NumOutputs
;
1741 * Number of transform feedback buffers in use by this program.
1743 unsigned NumBuffers
;
1745 struct gl_transform_feedback_output
*Outputs
;
1747 /** Transform feedback varyings used for the linking of this shader program.
1749 * Use for glGetTransformFeedbackVarying().
1751 struct gl_transform_feedback_varying_info
*Varyings
;
1755 * Total number of components stored in each buffer. This may be used by
1756 * hardware back-ends to determine the correct stride when interleaving
1757 * multiple transform feedback outputs in the same buffer.
1759 unsigned BufferStride
[MAX_FEEDBACK_BUFFERS
];
1764 * Transform feedback object state
1766 struct gl_transform_feedback_object
1768 GLuint Name
; /**< AKA the object ID */
1769 GLchar
*Label
; /**< GL_KHR_debug */
1771 GLboolean Active
; /**< Is transform feedback enabled? */
1772 GLboolean Paused
; /**< Is transform feedback paused? */
1773 GLboolean EndedAnytime
; /**< Has EndTransformFeedback been called
1775 GLboolean EverBound
; /**< Has this object been bound? */
1778 * The shader program active when BeginTransformFeedback() was called.
1779 * When active and unpaused, this equals ctx->Shader.CurrentVertexProgram.
1781 struct gl_shader_program
*shader_program
;
1784 * GLES: if Active is true, remaining number of primitives which can be
1785 * rendered without overflow. This is necessary to track because GLES
1786 * requires us to generate INVALID_OPERATION if a call to glDrawArrays or
1787 * glDrawArraysInstanced would overflow transform feedback buffers.
1788 * Undefined if Active is false.
1790 * Not tracked for desktop GL since it's unnecessary.
1792 unsigned GlesRemainingPrims
;
1794 /** The feedback buffers */
1795 GLuint BufferNames
[MAX_FEEDBACK_BUFFERS
];
1796 struct gl_buffer_object
*Buffers
[MAX_FEEDBACK_BUFFERS
];
1798 /** Start of feedback data in dest buffer */
1799 GLintptr Offset
[MAX_FEEDBACK_BUFFERS
];
1802 * Max data to put into dest buffer (in bytes). Computed based on
1803 * RequestedSize and the actual size of the buffer.
1805 GLsizeiptr Size
[MAX_FEEDBACK_BUFFERS
];
1808 * Size that was specified when the buffer was bound. If the buffer was
1809 * bound with glBindBufferBase() or glBindBufferOffsetEXT(), this value is
1812 GLsizeiptr RequestedSize
[MAX_FEEDBACK_BUFFERS
];
1817 * Context state for transform feedback.
1819 struct gl_transform_feedback_state
1821 GLenum Mode
; /**< GL_POINTS, GL_LINES or GL_TRIANGLES */
1823 /** The general binding point (GL_TRANSFORM_FEEDBACK_BUFFER) */
1824 struct gl_buffer_object
*CurrentBuffer
;
1826 /** The table of all transform feedback objects */
1827 struct _mesa_HashTable
*Objects
;
1829 /** The current xform-fb object (GL_TRANSFORM_FEEDBACK_BINDING) */
1830 struct gl_transform_feedback_object
*CurrentObject
;
1832 /** The default xform-fb object (Name==0) */
1833 struct gl_transform_feedback_object
*DefaultObject
;
1838 * A "performance monitor" as described in AMD_performance_monitor.
1840 struct gl_perf_monitor_object
1845 * A list of groups with currently active counters.
1847 * ActiveGroups[g] == n if there are n counters active from group 'g'.
1849 unsigned *ActiveGroups
;
1852 * An array of bitsets, subscripted by group ID, then indexed by counter ID.
1854 * Checking whether counter 'c' in group 'g' is active can be done via:
1856 * BITSET_TEST(ActiveCounters[g], c)
1858 GLuint
**ActiveCounters
;
1862 union gl_perf_monitor_counter_value
1870 struct gl_perf_monitor_counter
1872 /** Human readable name for the counter. */
1876 * Data type of the counter. Valid values are FLOAT, UNSIGNED_INT,
1877 * UNSIGNED_INT64_AMD, and PERCENTAGE_AMD.
1881 /** Minimum counter value. */
1882 union gl_perf_monitor_counter_value Minimum
;
1884 /** Maximum counter value. */
1885 union gl_perf_monitor_counter_value Maximum
;
1889 struct gl_perf_monitor_group
1891 /** Human readable name for the group. */
1895 * Maximum number of counters in this group which can be active at the
1898 GLuint MaxActiveCounters
;
1900 /** Array of counters within this group. */
1901 const struct gl_perf_monitor_counter
*Counters
;
1907 * Context state for AMD_performance_monitor.
1909 struct gl_perf_monitor_state
1911 /** Array of performance monitor groups (indexed by group ID) */
1912 const struct gl_perf_monitor_group
*Groups
;
1915 /** The table of all performance monitors. */
1916 struct _mesa_HashTable
*Monitors
;
1921 * Names of the various vertex/fragment program register files, etc.
1923 * NOTE: first four tokens must fit into 2 bits (see t_vb_arbprogram.c)
1924 * All values should fit in a 4-bit field.
1926 * NOTE: PROGRAM_ENV_PARAM, PROGRAM_STATE_VAR,
1927 * PROGRAM_CONSTANT, and PROGRAM_UNIFORM can all be considered to
1928 * be "uniform" variables since they can only be set outside glBegin/End.
1929 * They're also all stored in the same Parameters array.
1933 PROGRAM_TEMPORARY
, /**< machine->Temporary[] */
1934 PROGRAM_ARRAY
, /**< Arrays & Matrixes */
1935 PROGRAM_INPUT
, /**< machine->Inputs[] */
1936 PROGRAM_OUTPUT
, /**< machine->Outputs[] */
1937 PROGRAM_LOCAL_PARAM
, /**< gl_program->LocalParams[] */
1938 PROGRAM_ENV_PARAM
, /**< gl_program->Parameters[] */
1939 PROGRAM_STATE_VAR
, /**< gl_program->Parameters[] */
1940 PROGRAM_CONSTANT
, /**< gl_program->Parameters[] */
1941 PROGRAM_UNIFORM
, /**< gl_program->Parameters[] */
1942 PROGRAM_WRITE_ONLY
, /**< A dummy, write-only register */
1943 PROGRAM_ADDRESS
, /**< machine->AddressReg */
1944 PROGRAM_SAMPLER
, /**< for shader samplers, compile-time only */
1945 PROGRAM_SYSTEM_VALUE
,/**< InstanceId, PrimitiveID, etc. */
1946 PROGRAM_UNDEFINED
, /**< Invalid/TBD value */
1952 * If the register file is PROGRAM_SYSTEM_VALUE, the register index will be
1953 * one of these values.
1957 SYSTEM_VALUE_FRONT_FACE
, /**< Fragment shader only (not done yet) */
1958 SYSTEM_VALUE_VERTEX_ID
, /**< Vertex shader only */
1959 SYSTEM_VALUE_INSTANCE_ID
, /**< Vertex shader only */
1960 SYSTEM_VALUE_SAMPLE_ID
, /**< Fragment shader only */
1961 SYSTEM_VALUE_SAMPLE_POS
, /**< Fragment shader only */
1962 SYSTEM_VALUE_MAX
/**< Number of values */
1967 * The possible interpolation qualifiers that can be applied to a fragment
1968 * shader input in GLSL.
1970 * Note: INTERP_QUALIFIER_NONE must be 0 so that memsetting the
1971 * gl_fragment_program data structure to 0 causes the default behavior.
1973 enum glsl_interp_qualifier
1975 INTERP_QUALIFIER_NONE
= 0,
1976 INTERP_QUALIFIER_SMOOTH
,
1977 INTERP_QUALIFIER_FLAT
,
1978 INTERP_QUALIFIER_NOPERSPECTIVE
,
1979 INTERP_QUALIFIER_COUNT
/**< Number of interpolation qualifiers */
1984 * \brief Layout qualifiers for gl_FragDepth.
1986 * Extension AMD_conservative_depth allows gl_FragDepth to be redeclared with
1987 * a layout qualifier.
1989 * \see enum ir_depth_layout
1991 enum gl_frag_depth_layout
1993 FRAG_DEPTH_LAYOUT_NONE
, /**< No layout is specified. */
1994 FRAG_DEPTH_LAYOUT_ANY
,
1995 FRAG_DEPTH_LAYOUT_GREATER
,
1996 FRAG_DEPTH_LAYOUT_LESS
,
1997 FRAG_DEPTH_LAYOUT_UNCHANGED
2002 * Base class for any kind of program object
2007 GLubyte
*String
; /**< Null-terminated program text */
2009 GLenum Target
; /**< GL_VERTEX/FRAGMENT_PROGRAM_ARB, GL_GEOMETRY_PROGRAM_NV */
2010 GLenum Format
; /**< String encoding format */
2012 struct prog_instruction
*Instructions
;
2014 GLbitfield64 InputsRead
; /**< Bitmask of which input regs are read */
2015 GLbitfield64 OutputsWritten
; /**< Bitmask of which output regs are written */
2016 GLbitfield SystemValuesRead
; /**< Bitmask of SYSTEM_VALUE_x inputs used */
2017 GLbitfield InputFlags
[MAX_PROGRAM_INPUTS
]; /**< PROG_PARAM_BIT_x flags */
2018 GLbitfield OutputFlags
[MAX_PROGRAM_OUTPUTS
]; /**< PROG_PARAM_BIT_x flags */
2019 GLbitfield TexturesUsed
[MAX_COMBINED_TEXTURE_IMAGE_UNITS
]; /**< TEXTURE_x_BIT bitmask */
2020 GLbitfield SamplersUsed
; /**< Bitfield of which samplers are used */
2021 GLbitfield ShadowSamplers
; /**< Texture units used for shadow sampling. */
2023 GLboolean UsesGather
; /**< Does this program use gather4 at all? */
2026 * For vertex and geometry shaders, true if the program uses the
2027 * gl_ClipDistance output. Ignored for fragment shaders.
2029 GLboolean UsesClipDistanceOut
;
2032 /** Named parameters, constants, etc. from program text */
2033 struct gl_program_parameter_list
*Parameters
;
2034 /** Numbered local parameters */
2035 GLfloat LocalParams
[MAX_PROGRAM_LOCAL_PARAMS
][4];
2037 /** Map from sampler unit to texture unit (set by glUniform1i()) */
2038 GLubyte SamplerUnits
[MAX_SAMPLERS
];
2040 /** Bitmask of which register files are read/written with indirect
2041 * addressing. Mask of (1 << PROGRAM_x) bits.
2043 GLbitfield IndirectRegisterFiles
;
2045 /** Logical counts */
2047 GLuint NumInstructions
;
2048 GLuint NumTemporaries
;
2049 GLuint NumParameters
;
2050 GLuint NumAttributes
;
2051 GLuint NumAddressRegs
;
2052 GLuint NumAluInstructions
;
2053 GLuint NumTexInstructions
;
2054 GLuint NumTexIndirections
;
2056 /** Native, actual h/w counts */
2058 GLuint NumNativeInstructions
;
2059 GLuint NumNativeTemporaries
;
2060 GLuint NumNativeParameters
;
2061 GLuint NumNativeAttributes
;
2062 GLuint NumNativeAddressRegs
;
2063 GLuint NumNativeAluInstructions
;
2064 GLuint NumNativeTexInstructions
;
2065 GLuint NumNativeTexIndirections
;
2070 /** Vertex program object */
2071 struct gl_vertex_program
2073 struct gl_program Base
; /**< base class */
2074 GLboolean IsPositionInvariant
;
2078 /** Geometry program object */
2079 struct gl_geometry_program
2081 struct gl_program Base
; /**< base class */
2085 GLenum InputType
; /**< GL_POINTS, GL_LINES, GL_LINES_ADJACENCY_ARB,
2086 GL_TRIANGLES, or GL_TRIANGLES_ADJACENCY_ARB */
2087 GLenum OutputType
; /**< GL_POINTS, GL_LINE_STRIP or GL_TRIANGLE_STRIP */
2088 GLboolean UsesEndPrimitive
;
2092 /** Fragment program object */
2093 struct gl_fragment_program
2095 struct gl_program Base
; /**< base class */
2096 GLboolean UsesKill
; /**< shader uses KIL instruction */
2097 GLboolean UsesDFdy
; /**< shader uses DDY instruction */
2098 GLboolean OriginUpperLeft
;
2099 GLboolean PixelCenterInteger
;
2100 enum gl_frag_depth_layout FragDepthLayout
;
2103 * GLSL interpolation qualifier associated with each fragment shader input.
2104 * For inputs that do not have an interpolation qualifier specified in
2105 * GLSL, the value is INTERP_QUALIFIER_NONE.
2107 enum glsl_interp_qualifier InterpQualifier
[VARYING_SLOT_MAX
];
2110 * Bitfield indicating, for each fragment shader input, 1 if that input
2111 * uses centroid interpolation, 0 otherwise. Unused inputs are 0.
2113 GLbitfield64 IsCentroid
;
2118 * State common to vertex and fragment programs.
2120 struct gl_program_state
2122 GLint ErrorPos
; /* GL_PROGRAM_ERROR_POSITION_ARB/NV */
2123 const char *ErrorString
; /* GL_PROGRAM_ERROR_STRING_ARB/NV */
2128 * Context state for vertex programs.
2130 struct gl_vertex_program_state
2132 GLboolean Enabled
; /**< User-set GL_VERTEX_PROGRAM_ARB/NV flag */
2133 GLboolean _Enabled
; /**< Enabled and _valid_ user program? */
2134 GLboolean PointSizeEnabled
; /**< GL_VERTEX_PROGRAM_POINT_SIZE_ARB/NV */
2135 GLboolean TwoSideEnabled
; /**< GL_VERTEX_PROGRAM_TWO_SIDE_ARB/NV */
2136 /** Computed two sided lighting for fixed function/programs. */
2137 GLboolean _TwoSideEnabled
;
2138 struct gl_vertex_program
*Current
; /**< User-bound vertex program */
2140 /** Currently enabled and valid vertex program (including internal
2141 * programs, user-defined vertex programs and GLSL vertex shaders).
2142 * This is the program we must use when rendering.
2144 struct gl_vertex_program
*_Current
;
2146 GLfloat Parameters
[MAX_PROGRAM_ENV_PARAMS
][4]; /**< Env params */
2148 /** Should fixed-function T&L be implemented with a vertex prog? */
2149 GLboolean _MaintainTnlProgram
;
2151 /** Program to emulate fixed-function T&L (see above) */
2152 struct gl_vertex_program
*_TnlProgram
;
2154 /** Cache of fixed-function programs */
2155 struct gl_program_cache
*Cache
;
2157 GLboolean _Overriden
;
2162 * Context state for geometry programs.
2164 struct gl_geometry_program_state
2166 GLboolean Enabled
; /**< GL_ARB_GEOMETRY_SHADER4 */
2167 GLboolean _Enabled
; /**< Enabled and valid program? */
2168 struct gl_geometry_program
*Current
; /**< user-bound geometry program */
2170 /** Currently enabled and valid program (including internal programs
2171 * and compiled shader programs).
2173 struct gl_geometry_program
*_Current
;
2175 GLfloat Parameters
[MAX_PROGRAM_ENV_PARAMS
][4]; /**< Env params */
2177 /** Cache of fixed-function programs */
2178 struct gl_program_cache
*Cache
;
2182 * Context state for fragment programs.
2184 struct gl_fragment_program_state
2186 GLboolean Enabled
; /**< User-set fragment program enable flag */
2187 GLboolean _Enabled
; /**< Enabled and _valid_ user program? */
2188 struct gl_fragment_program
*Current
; /**< User-bound fragment program */
2190 /** Currently enabled and valid fragment program (including internal
2191 * programs, user-defined fragment programs and GLSL fragment shaders).
2192 * This is the program we must use when rendering.
2194 struct gl_fragment_program
*_Current
;
2196 GLfloat Parameters
[MAX_PROGRAM_ENV_PARAMS
][4]; /**< Env params */
2198 /** Should fixed-function texturing be implemented with a fragment prog? */
2199 GLboolean _MaintainTexEnvProgram
;
2201 /** Program to emulate fixed-function texture env/combine (see above) */
2202 struct gl_fragment_program
*_TexEnvProgram
;
2204 /** Cache of fixed-function programs */
2205 struct gl_program_cache
*Cache
;
2210 * ATI_fragment_shader runtime state
2212 #define ATI_FS_INPUT_PRIMARY 0
2213 #define ATI_FS_INPUT_SECONDARY 1
2215 struct atifs_instruction
;
2216 struct atifs_setupinst
;
2219 * ATI fragment shader
2221 struct ati_fragment_shader
2225 struct atifs_instruction
*Instructions
[2];
2226 struct atifs_setupinst
*SetupInst
[2];
2227 GLfloat Constants
[8][4];
2228 GLbitfield LocalConstDef
; /**< Indicates which constants have been set */
2229 GLubyte numArithInstr
[2];
2230 GLubyte regsAssigned
[2];
2231 GLubyte NumPasses
; /**< 1 or 2 */
2233 GLubyte last_optype
;
2234 GLboolean interpinp1
;
2240 * Context state for GL_ATI_fragment_shader
2242 struct gl_ati_fragment_shader_state
2245 GLboolean _Enabled
; /**< enabled and valid shader? */
2246 GLboolean Compiling
;
2247 GLfloat GlobalConstants
[8][4];
2248 struct ati_fragment_shader
*Current
;
2252 /** Set by #pragma directives */
2253 struct gl_sl_pragmas
2255 GLboolean IgnoreOptimize
; /**< ignore #pragma optimize(on/off) ? */
2256 GLboolean IgnoreDebug
; /**< ignore #pragma debug(on/off) ? */
2257 GLboolean Optimize
; /**< defaults on */
2258 GLboolean Debug
; /**< defaults off */
2263 * A GLSL vertex or fragment shader object.
2267 /** GL_FRAGMENT_SHADER || GL_VERTEX_SHADER || GL_GEOMETRY_SHADER_ARB.
2268 * Must be the first field.
2271 GLuint Name
; /**< AKA the handle */
2272 GLchar
*Label
; /**< GL_KHR_debug */
2273 GLint RefCount
; /**< Reference count */
2274 GLboolean DeletePending
;
2275 GLboolean CompileStatus
;
2276 const GLchar
*Source
; /**< Source code string */
2277 GLuint SourceChecksum
; /**< for debug/logging purposes */
2278 struct gl_program
*Program
; /**< Post-compile assembly code */
2280 struct gl_sl_pragmas Pragmas
;
2282 unsigned Version
; /**< GLSL version used for linking */
2283 GLboolean IsES
; /**< True if this shader uses GLSL ES */
2286 * \name Sampler tracking
2288 * \note Each of these fields is only set post-linking.
2291 unsigned num_samplers
; /**< Number of samplers used by this shader. */
2292 GLbitfield active_samplers
; /**< Bitfield of which samplers are used */
2293 GLbitfield shadow_samplers
; /**< Samplers used for shadow sampling. */
2297 * Map from sampler unit to texture unit (set by glUniform1i())
2299 * A sampler unit is associated with each sampler uniform by the linker.
2300 * The sampler unit associated with each uniform is stored in the
2301 * \c gl_uniform_storage::sampler field.
2303 GLubyte SamplerUnits
[MAX_SAMPLERS
];
2304 /** Which texture target is being sampled (TEXTURE_1D/2D/3D/etc_INDEX) */
2305 gl_texture_index SamplerTargets
[MAX_SAMPLERS
];
2308 * Number of default uniform block components used by this shader.
2310 * This field is only set post-linking.
2312 unsigned num_uniform_components
;
2315 * Number of combined uniform components used by this shader.
2317 * This field is only set post-linking. It is the sum of the uniform block
2318 * sizes divided by sizeof(float), and num_uniform_compoennts.
2320 unsigned num_combined_uniform_components
;
2323 * This shader's uniform block information.
2325 * The offsets of the variables are assigned only for shaders in a program's
2328 struct gl_uniform_block
*UniformBlocks
;
2329 unsigned NumUniformBlocks
;
2331 struct exec_list
*ir
;
2332 struct glsl_symbol_table
*symbols
;
2334 /** Shaders containing built-in functions that are used for linking. */
2335 struct gl_shader
*builtins_to_link
[16];
2336 unsigned num_builtins_to_link
;
2339 * Geometry shader state from GLSL 1.50 layout qualifiers.
2344 * GL_POINTS, GL_LINES, GL_LINES_ADJACENCY, GL_TRIANGLES, or
2345 * GL_TRIANGLES_ADJACENCY, or PRIM_UNKNOWN if it's not set in this
2350 * GL_POINTS, GL_LINE_STRIP or GL_TRIANGLE_STRIP, or PRIM_UNKNOWN if
2351 * it's not set in this shader.
2359 * Shader stages. Note that these will become 5 with tessellation.
2361 * The order must match how shaders are ordered in the pipeline.
2362 * The GLSL linker assumes that if i<j, then the j-th shader is
2363 * executed later than the i-th shader.
2367 MESA_SHADER_VERTEX
= 0,
2368 MESA_SHADER_GEOMETRY
= 1,
2369 MESA_SHADER_FRAGMENT
= 2,
2370 MESA_SHADER_TYPES
= 3
2374 struct gl_uniform_buffer_variable
2379 * Name of the uniform as seen by glGetUniformIndices.
2381 * glGetUniformIndices requires that the block instance index \b not be
2382 * present in the name of queried uniforms.
2385 * \c gl_uniform_buffer_variable::IndexName and
2386 * \c gl_uniform_buffer_variable::Name may point to identical storage.
2390 const struct glsl_type
*Type
;
2391 unsigned int Offset
;
2396 enum gl_uniform_block_packing
2404 struct gl_uniform_block
2406 /** Declared name of the uniform block */
2409 /** Array of supplemental information about UBO ir_variables. */
2410 struct gl_uniform_buffer_variable
*Uniforms
;
2414 * Index (GL_UNIFORM_BLOCK_BINDING) into ctx->UniformBufferBindings[] to use
2415 * with glBindBufferBase to bind a buffer object to this uniform block. When
2416 * updated in the program, _NEW_BUFFER_OBJECT will be set.
2421 * Minimum size of a buffer object to back this uniform buffer
2422 * (GL_UNIFORM_BLOCK_DATA_SIZE).
2424 GLuint UniformBufferSize
;
2427 * Layout specified in the shader
2429 * This isn't accessible through the API, but it is used while
2430 * cross-validating uniform blocks.
2432 enum gl_uniform_block_packing _Packing
;
2436 * Structure that represents a reference to an atomic buffer from some
2439 struct gl_active_atomic_buffer
2441 /** Uniform indices of the atomic counters declared within it. */
2445 /** Binding point index associated with it. */
2448 /** Minimum reasonable size it is expected to have. */
2451 /** Shader stages making use of it. */
2452 GLboolean StageReferences
[MESA_SHADER_TYPES
];
2456 * A GLSL program object.
2457 * Basically a linked collection of vertex and fragment shaders.
2459 struct gl_shader_program
2461 GLenum Type
; /**< Always GL_SHADER_PROGRAM (internal token) */
2462 GLuint Name
; /**< aka handle or ID */
2463 GLchar
*Label
; /**< GL_KHR_debug */
2464 GLint RefCount
; /**< Reference count */
2465 GLboolean DeletePending
;
2468 * Is the application intending to glGetProgramBinary this program?
2470 GLboolean BinaryRetreivableHint
;
2473 * Flags that the linker should not reject the program if it lacks
2474 * a vertex or fragment shader. GLES2 doesn't allow separate
2475 * shader objects, and would reject them. However, we internally
2476 * build separate shader objects for fixed function programs, which
2477 * we use for drivers/common/meta.c and for handling
2478 * _mesa_update_state with no program bound (for example in
2481 GLboolean InternalSeparateShader
;
2483 GLuint NumShaders
; /**< number of attached shaders */
2484 struct gl_shader
**Shaders
; /**< List of attached the shaders */
2487 * User-defined attribute bindings
2489 * These are set via \c glBindAttribLocation and are used to direct the
2490 * GLSL linker. These are \b not the values used in the compiled shader,
2491 * and they are \b not the values returned by \c glGetAttribLocation.
2493 struct string_to_uint_map
*AttributeBindings
;
2496 * User-defined fragment data bindings
2498 * These are set via \c glBindFragDataLocation and are used to direct the
2499 * GLSL linker. These are \b not the values used in the compiled shader,
2500 * and they are \b not the values returned by \c glGetFragDataLocation.
2502 struct string_to_uint_map
*FragDataBindings
;
2503 struct string_to_uint_map
*FragDataIndexBindings
;
2506 * Transform feedback varyings last specified by
2507 * glTransformFeedbackVaryings().
2509 * For the current set of transform feeedback varyings used for transform
2510 * feedback output, see LinkedTransformFeedback.
2515 GLchar
**VaryingNames
; /**< Array [NumVarying] of char * */
2516 } TransformFeedback
;
2518 /** Post-link transform feedback info. */
2519 struct gl_transform_feedback_info LinkedTransformFeedback
;
2521 /** Post-link gl_FragDepth layout for ARB_conservative_depth. */
2522 enum gl_frag_depth_layout FragDepthLayout
;
2525 * Geometry shader state - copied into gl_geometry_program by
2526 * _mesa_copy_linked_program_data().
2531 GLenum InputType
; /**< GL_POINTS, GL_LINES, GL_LINES_ADJACENCY_ARB,
2532 GL_TRIANGLES, or GL_TRIANGLES_ADJACENCY_ARB */
2533 GLenum OutputType
; /**< GL_POINTS, GL_LINE_STRIP or GL_TRIANGLE_STRIP */
2535 * True if gl_ClipDistance is written to. Copied into
2536 * gl_geometry_program by _mesa_copy_linked_program_data().
2538 GLboolean UsesClipDistance
;
2539 GLuint ClipDistanceArraySize
; /**< Size of the gl_ClipDistance array, or
2540 0 if not present. */
2541 GLboolean UsesEndPrimitive
;
2544 /** Vertex shader state */
2547 * True if gl_ClipDistance is written to. Copied into gl_vertex_program
2548 * by _mesa_copy_linked_program_data().
2550 GLboolean UsesClipDistance
;
2551 GLuint ClipDistanceArraySize
; /**< Size of the gl_ClipDistance array, or
2552 0 if not present. */
2555 /* post-link info: */
2556 unsigned NumUserUniformStorage
;
2557 struct gl_uniform_storage
*UniformStorage
;
2560 * Size of the gl_ClipDistance array that is output from the last pipeline
2561 * stage before the fragment shader.
2563 unsigned LastClipDistanceArraySize
;
2565 struct gl_uniform_block
*UniformBlocks
;
2566 unsigned NumUniformBlocks
;
2569 * Scale factor for the uniform base location
2571 * This is used to generate locations (returned by \c glGetUniformLocation)
2572 * of uniforms. The base location of the uniform is multiplied by this
2573 * value, and the array index is added.
2579 * _mesa_uniform_merge_location_offset, _mesa_uniform_split_location_offset
2581 unsigned UniformLocationBaseScale
;
2584 * Indices into the _LinkedShaders's UniformBlocks[] array for each stage
2585 * they're used in, or -1.
2587 * This is used to maintain the Binding values of the stage's UniformBlocks[]
2588 * and to answer the GL_UNIFORM_BLOCK_REFERENCED_BY_*_SHADER queries.
2590 int *UniformBlockStageIndex
[MESA_SHADER_TYPES
];
2593 * Map of active uniform names to locations
2595 * Maps any active uniform that is not an array element to a location.
2596 * Each active uniform, including individual structure members will appear
2597 * in this map. This roughly corresponds to the set of names that would be
2598 * enumerated by \c glGetActiveUniform.
2600 struct string_to_uint_map
*UniformHash
;
2602 struct gl_active_atomic_buffer
*AtomicBuffers
;
2603 unsigned NumAtomicBuffers
;
2605 GLboolean LinkStatus
; /**< GL_LINK_STATUS */
2606 GLboolean Validated
;
2607 GLboolean _Used
; /**< Ever used for drawing? */
2610 unsigned Version
; /**< GLSL version used for linking */
2611 GLboolean IsES
; /**< True if this program uses GLSL ES */
2614 * Per-stage shaders resulting from the first stage of linking.
2616 * Set of linked shaders for this program. The array is accessed using the
2617 * \c MESA_SHADER_* defines. Entries for non-existent stages will be
2620 struct gl_shader
*_LinkedShaders
[MESA_SHADER_TYPES
];
2624 #define GLSL_DUMP 0x1 /**< Dump shaders to stdout */
2625 #define GLSL_LOG 0x2 /**< Write shaders to files */
2626 #define GLSL_OPT 0x4 /**< Force optimizations (override pragmas) */
2627 #define GLSL_NO_OPT 0x8 /**< Force no optimizations (override pragmas) */
2628 #define GLSL_UNIFORMS 0x10 /**< Print glUniform calls */
2629 #define GLSL_NOP_VERT 0x20 /**< Force no-op vertex shaders */
2630 #define GLSL_NOP_FRAG 0x40 /**< Force no-op fragment shaders */
2631 #define GLSL_USE_PROG 0x80 /**< Log glUseProgram calls */
2632 #define GLSL_REPORT_ERRORS 0x100 /**< Print compilation errors */
2633 #define GLSL_DUMP_ON_ERROR 0x200 /**< Dump shaders to stderr on compile error */
2637 * Context state for GLSL vertex/fragment shaders.
2639 struct gl_shader_state
2642 * Programs used for rendering
2644 * There is a separate program set for each shader stage. If
2645 * GL_EXT_separate_shader_objects is not supported, each of these must point
2646 * to \c NULL or to the same program.
2648 struct gl_shader_program
*CurrentVertexProgram
;
2649 struct gl_shader_program
*CurrentGeometryProgram
;
2650 struct gl_shader_program
*CurrentFragmentProgram
;
2652 struct gl_shader_program
*_CurrentFragmentProgram
;
2655 * Program used by glUniform calls.
2657 * Explicitly set by \c glUseProgram and \c glActiveProgramEXT.
2659 struct gl_shader_program
*ActiveProgram
;
2661 GLbitfield Flags
; /**< Mask of GLSL_x flags */
2666 * Compiler options for a single GLSL shaders type
2668 struct gl_shader_compiler_options
2670 /** Driver-selectable options: */
2671 GLboolean EmitCondCodes
; /**< Use condition codes? */
2672 GLboolean EmitNoLoops
;
2673 GLboolean EmitNoFunctions
;
2674 GLboolean EmitNoCont
; /**< Emit CONT opcode? */
2675 GLboolean EmitNoMainReturn
; /**< Emit CONT/RET opcodes? */
2676 GLboolean EmitNoNoise
; /**< Emit NOISE opcodes? */
2677 GLboolean EmitNoPow
; /**< Emit POW opcodes? */
2678 GLboolean LowerClipDistance
; /**< Lower gl_ClipDistance from float[8] to vec4[2]? */
2681 * \name Forms of indirect addressing the driver cannot do.
2684 GLboolean EmitNoIndirectInput
; /**< No indirect addressing of inputs */
2685 GLboolean EmitNoIndirectOutput
; /**< No indirect addressing of outputs */
2686 GLboolean EmitNoIndirectTemp
; /**< No indirect addressing of temps */
2687 GLboolean EmitNoIndirectUniform
; /**< No indirect addressing of constants */
2690 GLuint MaxIfDepth
; /**< Maximum nested IF blocks */
2691 GLuint MaxUnrollIterations
;
2694 * Prefer DP4 instructions (rather than MUL/MAD) for matrix * vector
2695 * operations, such as position transformation.
2697 GLboolean PreferDP4
;
2699 struct gl_sl_pragmas DefaultPragmas
; /**< Default #pragma settings */
2704 * Occlusion/timer query object.
2706 struct gl_query_object
2708 GLenum Target
; /**< The query target, when active */
2709 GLuint Id
; /**< hash table ID/name */
2710 GLchar
*Label
; /**< GL_KHR_debug */
2711 GLuint64EXT Result
; /**< the counter */
2712 GLboolean Active
; /**< inside Begin/EndQuery */
2713 GLboolean Ready
; /**< result is ready? */
2714 GLboolean EverBound
;/**< has query object ever been bound */
2719 * Context state for query objects.
2721 struct gl_query_state
2723 struct _mesa_HashTable
*QueryObjects
;
2724 struct gl_query_object
*CurrentOcclusionObject
; /* GL_ARB_occlusion_query */
2725 struct gl_query_object
*CurrentTimerObject
; /* GL_EXT_timer_query */
2727 /** GL_NV_conditional_render */
2728 struct gl_query_object
*CondRenderQuery
;
2730 /** GL_EXT_transform_feedback */
2731 struct gl_query_object
*PrimitivesGenerated
;
2732 struct gl_query_object
*PrimitivesWritten
;
2734 /** GL_ARB_timer_query */
2735 struct gl_query_object
*TimeElapsed
;
2737 GLenum CondRenderMode
;
2741 /** Sync object state */
2742 struct gl_sync_object
2744 GLenum Type
; /**< GL_SYNC_FENCE */
2745 GLuint Name
; /**< Fence name */
2746 GLchar
*Label
; /**< GL_KHR_debug */
2747 GLint RefCount
; /**< Reference count */
2748 GLboolean DeletePending
; /**< Object was deleted while there were still
2749 * live references (e.g., sync not yet finished)
2751 GLenum SyncCondition
;
2752 GLbitfield Flags
; /**< Flags passed to glFenceSync */
2753 GLuint StatusFlag
:1; /**< Has the sync object been signaled? */
2758 * State which can be shared by multiple contexts:
2760 struct gl_shared_state
2762 _glthread_Mutex Mutex
; /**< for thread safety */
2763 GLint RefCount
; /**< Reference count */
2764 struct _mesa_HashTable
*DisplayList
; /**< Display lists hash table */
2765 struct _mesa_HashTable
*TexObjects
; /**< Texture objects hash table */
2767 /** Default texture objects (shared by all texture units) */
2768 struct gl_texture_object
*DefaultTex
[NUM_TEXTURE_TARGETS
];
2770 /** Fallback texture used when a bound texture is incomplete */
2771 struct gl_texture_object
*FallbackTex
[NUM_TEXTURE_TARGETS
];
2774 * \name Thread safety and statechange notification for texture
2777 * \todo Improve the granularity of locking.
2780 _glthread_Mutex TexMutex
; /**< texobj thread safety */
2781 GLuint TextureStateStamp
; /**< state notification for shared tex */
2784 /** Default buffer object for vertex arrays that aren't in VBOs */
2785 struct gl_buffer_object
*NullBufferObj
;
2788 * \name Vertex/geometry/fragment programs
2791 struct _mesa_HashTable
*Programs
; /**< All vertex/fragment programs */
2792 struct gl_vertex_program
*DefaultVertexProgram
;
2793 struct gl_fragment_program
*DefaultFragmentProgram
;
2794 struct gl_geometry_program
*DefaultGeometryProgram
;
2797 /* GL_ATI_fragment_shader */
2798 struct _mesa_HashTable
*ATIShaders
;
2799 struct ati_fragment_shader
*DefaultFragmentShader
;
2801 struct _mesa_HashTable
*BufferObjects
;
2803 /** Table of both gl_shader and gl_shader_program objects */
2804 struct _mesa_HashTable
*ShaderObjects
;
2806 /* GL_EXT_framebuffer_object */
2807 struct _mesa_HashTable
*RenderBuffers
;
2808 struct _mesa_HashTable
*FrameBuffers
;
2811 struct set
*SyncObjects
;
2813 /** GL_ARB_sampler_objects */
2814 struct _mesa_HashTable
*SamplerObjects
;
2820 * Renderbuffers represent drawing surfaces such as color, depth and/or
2821 * stencil. A framebuffer object has a set of renderbuffers.
2822 * Drivers will typically derive subclasses of this type.
2824 struct gl_renderbuffer
2826 _glthread_Mutex Mutex
; /**< for thread safety */
2827 GLuint ClassID
; /**< Useful for drivers */
2829 GLchar
*Label
; /**< GL_KHR_debug */
2831 GLuint Width
, Height
;
2833 GLboolean Purgeable
; /**< Is the buffer purgeable under memory pressure? */
2834 GLboolean AttachedAnytime
; /**< TRUE if it was attached to a framebuffer */
2836 * True for renderbuffers that wrap textures, giving the driver a chance to
2837 * flush render caches through the FinishRenderTexture hook.
2839 * Drivers may also set this on renderbuffers other than those generated by
2840 * glFramebufferTexture(), though it means FinishRenderTexture() would be
2841 * called without a rb->TexImage.
2843 GLboolean NeedsFinishRenderTexture
;
2845 GLenum InternalFormat
; /**< The user-specified format */
2846 GLenum _BaseFormat
; /**< Either GL_RGB, GL_RGBA, GL_DEPTH_COMPONENT or
2847 GL_STENCIL_INDEX. */
2848 gl_format Format
; /**< The actual renderbuffer memory format */
2850 * Pointer to the texture image if this renderbuffer wraps a texture,
2853 * Note that the reference on the gl_texture_object containing this
2854 * TexImage is held by the gl_renderbuffer_attachment.
2856 struct gl_texture_image
*TexImage
;
2858 /** Delete this renderbuffer */
2859 void (*Delete
)(struct gl_context
*ctx
, struct gl_renderbuffer
*rb
);
2861 /** Allocate new storage for this renderbuffer */
2862 GLboolean (*AllocStorage
)(struct gl_context
*ctx
,
2863 struct gl_renderbuffer
*rb
,
2864 GLenum internalFormat
,
2865 GLuint width
, GLuint height
);
2870 * A renderbuffer attachment points to either a texture object (and specifies
2871 * a mipmap level, cube face or 3D texture slice) or points to a renderbuffer.
2873 struct gl_renderbuffer_attachment
2875 GLenum Type
; /**< \c GL_NONE or \c GL_TEXTURE or \c GL_RENDERBUFFER_EXT */
2879 * If \c Type is \c GL_RENDERBUFFER_EXT, this stores a pointer to the
2880 * application supplied renderbuffer object.
2882 struct gl_renderbuffer
*Renderbuffer
;
2885 * If \c Type is \c GL_TEXTURE, this stores a pointer to the application
2886 * supplied texture object.
2888 struct gl_texture_object
*Texture
;
2889 GLuint TextureLevel
; /**< Attached mipmap level. */
2890 GLuint CubeMapFace
; /**< 0 .. 5, for cube map textures. */
2891 GLuint Zoffset
; /**< Slice for 3D textures, or layer for both 1D
2892 * and 2D array textures */
2898 * A framebuffer is a collection of renderbuffers (color, depth, stencil, etc).
2899 * In C++ terms, think of this as a base class from which device drivers
2900 * will make derived classes.
2902 struct gl_framebuffer
2904 _glthread_Mutex Mutex
; /**< for thread safety */
2906 * If zero, this is a window system framebuffer. If non-zero, this
2907 * is a FBO framebuffer; note that for some devices (i.e. those with
2908 * a natural pixel coordinate system for FBOs that differs from the
2909 * OpenGL/Mesa coordinate system), this means that the viewport,
2910 * polygon face orientation, and polygon stipple will have to be inverted.
2913 GLchar
*Label
; /**< GL_KHR_debug */
2916 GLboolean DeletePending
;
2919 * The framebuffer's visual. Immutable if this is a window system buffer.
2920 * Computed from attachments if user-made FBO.
2922 struct gl_config Visual
;
2924 GLuint Width
, Height
; /**< size of frame buffer in pixels */
2926 /** \name Drawing bounds (Intersection of buffer size and scissor box) */
2928 GLint _Xmin
, _Xmax
; /**< inclusive */
2929 GLint _Ymin
, _Ymax
; /**< exclusive */
2932 /** \name Derived Z buffer stuff */
2934 GLuint _DepthMax
; /**< Max depth buffer value */
2935 GLfloat _DepthMaxF
; /**< Float max depth buffer value */
2936 GLfloat _MRD
; /**< minimum resolvable difference in Z values */
2939 /** One of the GL_FRAMEBUFFER_(IN)COMPLETE_* tokens */
2942 /** Integer color values */
2943 GLboolean _IntegerColor
;
2945 /* ARB_color_buffer_float */
2946 GLboolean _AllColorBuffersFixedPoint
; /* no integer, no float */
2947 GLboolean _HasSNormOrFloatColorBuffer
;
2949 /** Array of all renderbuffer attachments, indexed by BUFFER_* tokens. */
2950 struct gl_renderbuffer_attachment Attachment
[BUFFER_COUNT
];
2952 /* In unextended OpenGL these vars are part of the GL_COLOR_BUFFER
2953 * attribute group and GL_PIXEL attribute group, respectively.
2955 GLenum ColorDrawBuffer
[MAX_DRAW_BUFFERS
];
2956 GLenum ColorReadBuffer
;
2958 /** Computed from ColorDraw/ReadBuffer above */
2959 GLuint _NumColorDrawBuffers
;
2960 GLint _ColorDrawBufferIndexes
[MAX_DRAW_BUFFERS
]; /**< BUFFER_x or -1 */
2961 GLint _ColorReadBufferIndex
; /* -1 = None */
2962 struct gl_renderbuffer
*_ColorDrawBuffers
[MAX_DRAW_BUFFERS
];
2963 struct gl_renderbuffer
*_ColorReadBuffer
;
2967 /** Delete this framebuffer */
2968 void (*Delete
)(struct gl_framebuffer
*fb
);
2973 * Precision info for shader datatypes. See glGetShaderPrecisionFormat().
2977 GLushort RangeMin
; /**< min value exponent */
2978 GLushort RangeMax
; /**< max value exponent */
2979 GLushort Precision
; /**< number of mantissa bits */
2984 * Limits for vertex, geometry and fragment programs/shaders.
2986 struct gl_program_constants
2988 /* logical limits */
2989 GLuint MaxInstructions
;
2990 GLuint MaxAluInstructions
;
2991 GLuint MaxTexInstructions
;
2992 GLuint MaxTexIndirections
;
2995 GLuint MaxAddressRegs
;
2996 GLuint MaxAddressOffset
; /**< [-MaxAddressOffset, MaxAddressOffset-1] */
2997 GLuint MaxParameters
;
2998 GLuint MaxLocalParams
;
2999 GLuint MaxEnvParams
;
3000 /* native/hardware limits */
3001 GLuint MaxNativeInstructions
;
3002 GLuint MaxNativeAluInstructions
;
3003 GLuint MaxNativeTexInstructions
;
3004 GLuint MaxNativeTexIndirections
;
3005 GLuint MaxNativeAttribs
;
3006 GLuint MaxNativeTemps
;
3007 GLuint MaxNativeAddressRegs
;
3008 GLuint MaxNativeParameters
;
3010 GLuint MaxUniformComponents
; /**< Usually == MaxParameters * 4 */
3013 * \name Per-stage input / output limits
3015 * Previous to OpenGL 3.2, the intrastage data limits were advertised with
3016 * a single value: GL_MAX_VARYING_COMPONENTS (GL_MAX_VARYING_VECTORS in
3017 * ES). This is stored as \c gl_constants::MaxVarying.
3019 * Starting with OpenGL 3.2, the limits are advertised with per-stage
3020 * variables. Each stage as a certain number of outputs that it can feed
3021 * to the next stage and a certain number inputs that it can consume from
3022 * the previous stage.
3024 * Vertex shader inputs do not participate this in this accounting.
3025 * These are tracked exclusively by \c gl_program_constants::MaxAttribs.
3027 * Fragment shader outputs do not participate this in this accounting.
3028 * These are tracked exclusively by \c gl_constants::MaxDrawBuffers.
3031 GLuint MaxInputComponents
;
3032 GLuint MaxOutputComponents
;
3035 /* ES 2.0 and GL_ARB_ES2_compatibility */
3036 struct gl_precision LowFloat
, MediumFloat
, HighFloat
;
3037 struct gl_precision LowInt
, MediumInt
, HighInt
;
3038 /* GL_ARB_uniform_buffer_object */
3039 GLuint MaxUniformBlocks
;
3040 GLuint MaxCombinedUniformComponents
;
3041 GLuint MaxTextureImageUnits
;
3042 /* GL_ARB_shader_atomic_counters */
3043 GLuint MaxAtomicBuffers
;
3044 GLuint MaxAtomicCounters
;
3049 * Constants which may be overridden by device driver during context creation
3050 * but are never changed after that.
3054 GLuint MaxTextureMbytes
; /**< Max memory per image, in MB */
3055 GLuint MaxTextureLevels
; /**< Max mipmap levels. */
3056 GLuint Max3DTextureLevels
; /**< Max mipmap levels for 3D textures */
3057 GLuint MaxCubeTextureLevels
; /**< Max mipmap levels for cube textures */
3058 GLuint MaxArrayTextureLayers
; /**< Max layers in array textures */
3059 GLuint MaxTextureRectSize
; /**< Max rectangle texture size, in pixes */
3060 GLuint MaxTextureCoordUnits
;
3061 GLuint MaxCombinedTextureImageUnits
;
3062 GLuint MaxTextureUnits
; /**< = MIN(CoordUnits, FragmentProgram.ImageUnits) */
3063 GLfloat MaxTextureMaxAnisotropy
; /**< GL_EXT_texture_filter_anisotropic */
3064 GLfloat MaxTextureLodBias
; /**< GL_EXT_texture_lod_bias */
3065 GLuint MaxTextureBufferSize
; /**< GL_ARB_texture_buffer_object */
3067 GLuint TextureBufferOffsetAlignment
; /**< GL_ARB_texture_buffer_range */
3069 GLuint MaxArrayLockSize
;
3073 GLfloat MinPointSize
, MaxPointSize
; /**< aliased */
3074 GLfloat MinPointSizeAA
, MaxPointSizeAA
; /**< antialiased */
3075 GLfloat PointSizeGranularity
;
3076 GLfloat MinLineWidth
, MaxLineWidth
; /**< aliased */
3077 GLfloat MinLineWidthAA
, MaxLineWidthAA
; /**< antialiased */
3078 GLfloat LineWidthGranularity
;
3080 GLuint MaxClipPlanes
;
3082 GLfloat MaxShininess
; /**< GL_NV_light_max_exponent */
3083 GLfloat MaxSpotExponent
; /**< GL_NV_light_max_exponent */
3085 GLuint MaxViewportWidth
, MaxViewportHeight
;
3087 struct gl_program_constants VertexProgram
; /**< GL_ARB_vertex_program */
3088 struct gl_program_constants FragmentProgram
; /**< GL_ARB_fragment_program */
3089 struct gl_program_constants GeometryProgram
; /**< GL_ARB_geometry_shader4 */
3090 GLuint MaxProgramMatrices
;
3091 GLuint MaxProgramMatrixStackDepth
;
3094 GLuint SamplesPassed
;
3097 GLuint PrimitivesGenerated
;
3098 GLuint PrimitivesWritten
;
3101 /** vertex array / buffer object bounds checking */
3102 GLboolean CheckArrayBounds
;
3104 GLuint MaxDrawBuffers
; /**< GL_ARB_draw_buffers */
3106 GLuint MaxColorAttachments
; /**< GL_EXT_framebuffer_object */
3107 GLuint MaxRenderbufferSize
; /**< GL_EXT_framebuffer_object */
3108 GLuint MaxSamples
; /**< GL_ARB_framebuffer_object */
3110 /** Number of varying vectors between any two shader stages. */
3114 * GL_ARB_uniform_buffer_object
3116 GLuint MaxCombinedUniformBlocks
;
3117 GLuint MaxUniformBufferBindings
;
3118 GLuint MaxUniformBlockSize
;
3119 GLuint UniformBufferOffsetAlignment
;
3122 /** GL_ARB_geometry_shader4 */
3123 GLuint MaxGeometryOutputVertices
;
3124 GLuint MaxGeometryTotalOutputComponents
;
3126 GLuint GLSLVersion
; /**< GLSL version supported (ex: 120 = 1.20) */
3129 * Changes default GLSL extension behavior from "error" to "warn". It's out
3130 * of spec, but it can make some apps work that otherwise wouldn't.
3132 GLboolean ForceGLSLExtensionsWarn
;
3135 * If non-zero, forces GLSL shaders without the #version directive to behave
3136 * as if they began with "#version ForceGLSLVersion".
3138 GLuint ForceGLSLVersion
;
3141 * Does the driver support real 32-bit integers? (Otherwise, integers are
3142 * simulated via floats.)
3144 GLboolean NativeIntegers
;
3147 * If the driver supports real 32-bit integers, what integer value should be
3148 * used for boolean true in uniform uploads? (Usually 1 or ~0.)
3150 GLuint UniformBooleanTrue
;
3152 /** Which texture units support GL_ATI_envmap_bumpmap as targets */
3153 GLbitfield SupportedBumpUnits
;
3156 * Maximum amount of time, measured in nanseconds, that the server can wait.
3158 GLuint64 MaxServerWaitTimeout
;
3160 /** GL_EXT_provoking_vertex */
3161 GLboolean QuadsFollowProvokingVertexConvention
;
3163 /** OpenGL version 3.0 */
3164 GLbitfield ContextFlags
; /**< Ex: GL_CONTEXT_FLAG_FORWARD_COMPATIBLE_BIT */
3166 /** OpenGL version 3.2 */
3167 GLbitfield ProfileMask
; /**< Mask of CONTEXT_x_PROFILE_BIT */
3169 /** GL_EXT_transform_feedback */
3170 GLuint MaxTransformFeedbackBuffers
;
3171 GLuint MaxTransformFeedbackSeparateComponents
;
3172 GLuint MaxTransformFeedbackInterleavedComponents
;
3173 GLuint MaxVertexStreams
;
3175 /** GL_EXT_gpu_shader4 */
3176 GLint MinProgramTexelOffset
, MaxProgramTexelOffset
;
3178 /** GL_ARB_texture_gather */
3179 GLuint MinProgramTextureGatherOffset
;
3180 GLuint MaxProgramTextureGatherOffset
;
3181 GLuint MaxProgramTextureGatherComponents
;
3183 /* GL_ARB_robustness */
3184 GLenum ResetStrategy
;
3186 /* GL_ARB_blend_func_extended */
3187 GLuint MaxDualSourceDrawBuffers
;
3190 * Whether the implementation strips out and ignores texture borders.
3192 * Many GPU hardware implementations don't support rendering with texture
3193 * borders and mipmapped textures. (Note: not static border color, but the
3194 * old 1-pixel border around each edge). Implementations then have to do
3195 * slow fallbacks to be correct, or just ignore the border and be fast but
3196 * wrong. Setting the flag strips the border off of TexImage calls,
3197 * providing "fast but wrong" at significantly reduced driver complexity.
3199 * Texture borders are deprecated in GL 3.0.
3201 GLboolean StripTextureBorder
;
3204 * For drivers which can do a better job at eliminating unused uniforms
3205 * than the GLSL compiler.
3207 * XXX Remove these as soon as a better solution is available.
3209 GLboolean GLSLSkipStrictMaxUniformLimitCheck
;
3212 * Force software support for primitive restart in the VBO module.
3214 GLboolean PrimitiveRestartInSoftware
;
3217 * Always use the GetTransformFeedbackVertexCount() driver hook, rather
3218 * than passing the transform feedback object to the drawing function.
3220 GLboolean AlwaysUseGetTransformFeedbackVertexCount
;
3222 /** GL_ARB_map_buffer_alignment */
3223 GLuint MinMapBufferAlignment
;
3226 * Disable varying packing. This is out of spec, but potentially useful
3227 * for older platforms that supports a limited number of texture
3228 * indirections--on these platforms, unpacking the varyings in the fragment
3229 * shader increases the number of texture indirections by 1, which might
3230 * make some shaders not executable at all.
3232 * Drivers that support transform feedback must set this value to GL_FALSE.
3234 GLboolean DisableVaryingPacking
;
3237 * Maximum value supported for an index in DrawElements and friends.
3239 * This must be at least (1ull<<24)-1. The default value is
3242 * \since ES 3.0 or GL_ARB_ES3_compatibility
3243 * \sa _mesa_init_constants
3245 GLuint64 MaxElementIndex
;
3248 * Disable interpretation of line continuations (lines ending with a
3249 * backslash character ('\') in GLSL source.
3251 GLboolean DisableGLSLLineContinuations
;
3253 /** GL_ARB_texture_multisample */
3254 GLint MaxColorTextureSamples
;
3255 GLint MaxDepthTextureSamples
;
3256 GLint MaxIntegerSamples
;
3258 /** GL_ARB_shader_atomic_counters */
3259 GLuint MaxAtomicBufferBindings
;
3260 GLuint MaxAtomicBufferSize
;
3261 GLuint MaxCombinedAtomicBuffers
;
3262 GLuint MaxCombinedAtomicCounters
;
3264 /** GL_ARB_vertex_attrib_binding */
3265 GLint MaxVertexAttribRelativeOffset
;
3266 GLint MaxVertexAttribBindings
;
3271 * Enable flag for each OpenGL extension. Different device drivers will
3272 * enable different extensions at runtime.
3274 struct gl_extensions
3276 GLboolean dummy
; /* don't remove this! */
3277 GLboolean dummy_true
; /* Set true by _mesa_init_extensions(). */
3278 GLboolean dummy_false
; /* Set false by _mesa_init_extensions(). */
3279 GLboolean ANGLE_texture_compression_dxt
;
3280 GLboolean ARB_ES2_compatibility
;
3281 GLboolean ARB_ES3_compatibility
;
3282 GLboolean ARB_base_instance
;
3283 GLboolean ARB_blend_func_extended
;
3284 GLboolean ARB_color_buffer_float
;
3285 GLboolean ARB_conservative_depth
;
3286 GLboolean ARB_depth_buffer_float
;
3287 GLboolean ARB_depth_clamp
;
3288 GLboolean ARB_depth_texture
;
3289 GLboolean ARB_draw_buffers_blend
;
3290 GLboolean ARB_draw_elements_base_vertex
;
3291 GLboolean ARB_draw_instanced
;
3292 GLboolean ARB_fragment_coord_conventions
;
3293 GLboolean ARB_fragment_program
;
3294 GLboolean ARB_fragment_program_shadow
;
3295 GLboolean ARB_fragment_shader
;
3296 GLboolean ARB_framebuffer_object
;
3297 GLboolean ARB_explicit_attrib_location
;
3298 GLboolean ARB_geometry_shader4
;
3299 GLboolean ARB_gpu_shader5
;
3300 GLboolean ARB_half_float_pixel
;
3301 GLboolean ARB_half_float_vertex
;
3302 GLboolean ARB_instanced_arrays
;
3303 GLboolean ARB_internalformat_query
;
3304 GLboolean ARB_map_buffer_alignment
;
3305 GLboolean ARB_map_buffer_range
;
3306 GLboolean ARB_occlusion_query
;
3307 GLboolean ARB_occlusion_query2
;
3308 GLboolean ARB_point_sprite
;
3309 GLboolean ARB_sample_shading
;
3310 GLboolean ARB_seamless_cube_map
;
3311 GLboolean ARB_shader_atomic_counters
;
3312 GLboolean ARB_shader_bit_encoding
;
3313 GLboolean ARB_shader_stencil_export
;
3314 GLboolean ARB_shader_texture_lod
;
3315 GLboolean ARB_shading_language_packing
;
3316 GLboolean ARB_shading_language_420pack
;
3317 GLboolean ARB_shadow
;
3319 GLboolean ARB_texture_border_clamp
;
3320 GLboolean ARB_texture_buffer_object
;
3321 GLboolean ARB_texture_buffer_object_rgb32
;
3322 GLboolean ARB_texture_buffer_range
;
3323 GLboolean ARB_texture_compression_rgtc
;
3324 GLboolean ARB_texture_cube_map
;
3325 GLboolean ARB_texture_cube_map_array
;
3326 GLboolean ARB_texture_env_combine
;
3327 GLboolean ARB_texture_env_crossbar
;
3328 GLboolean ARB_texture_env_dot3
;
3329 GLboolean ARB_texture_float
;
3330 GLboolean ARB_texture_gather
;
3331 GLboolean ARB_texture_mirror_clamp_to_edge
;
3332 GLboolean ARB_texture_multisample
;
3333 GLboolean ARB_texture_non_power_of_two
;
3334 GLboolean ARB_texture_query_levels
;
3335 GLboolean ARB_texture_query_lod
;
3336 GLboolean ARB_texture_rg
;
3337 GLboolean ARB_texture_rgb10_a2ui
;
3338 GLboolean ARB_timer_query
;
3339 GLboolean ARB_transform_feedback2
;
3340 GLboolean ARB_transform_feedback3
;
3341 GLboolean ARB_transform_feedback_instanced
;
3342 GLboolean ARB_uniform_buffer_object
;
3343 GLboolean ARB_vertex_program
;
3344 GLboolean ARB_vertex_shader
;
3345 GLboolean ARB_vertex_type_10f_11f_11f_rev
;
3346 GLboolean ARB_vertex_type_2_10_10_10_rev
;
3347 GLboolean EXT_blend_color
;
3348 GLboolean EXT_blend_equation_separate
;
3349 GLboolean EXT_blend_func_separate
;
3350 GLboolean EXT_blend_minmax
;
3351 GLboolean EXT_depth_bounds_test
;
3352 GLboolean EXT_draw_buffers2
;
3353 GLboolean EXT_framebuffer_blit
;
3354 GLboolean EXT_framebuffer_multisample
;
3355 GLboolean EXT_framebuffer_multisample_blit_scaled
;
3356 GLboolean EXT_framebuffer_sRGB
;
3357 GLboolean EXT_gpu_program_parameters
;
3358 GLboolean EXT_gpu_shader4
;
3359 GLboolean EXT_packed_depth_stencil
;
3360 GLboolean EXT_packed_float
;
3361 GLboolean EXT_pixel_buffer_object
;
3362 GLboolean EXT_point_parameters
;
3363 GLboolean EXT_provoking_vertex
;
3364 GLboolean EXT_separate_shader_objects
;
3365 GLboolean EXT_shader_integer_mix
;
3366 GLboolean EXT_stencil_two_side
;
3367 GLboolean EXT_texture3D
;
3368 GLboolean EXT_texture_array
;
3369 GLboolean EXT_texture_compression_latc
;
3370 GLboolean EXT_texture_compression_s3tc
;
3371 GLboolean EXT_texture_env_dot3
;
3372 GLboolean EXT_texture_filter_anisotropic
;
3373 GLboolean EXT_texture_integer
;
3374 GLboolean EXT_texture_mirror_clamp
;
3375 GLboolean EXT_texture_shared_exponent
;
3376 GLboolean EXT_texture_snorm
;
3377 GLboolean EXT_texture_sRGB
;
3378 GLboolean EXT_texture_sRGB_decode
;
3379 GLboolean EXT_texture_swizzle
;
3380 GLboolean EXT_transform_feedback
;
3381 GLboolean EXT_timer_query
;
3382 GLboolean EXT_vertex_array_bgra
;
3383 GLboolean OES_standard_derivatives
;
3384 /* vendor extensions */
3385 GLboolean AMD_performance_monitor
;
3386 GLboolean AMD_seamless_cubemap_per_texture
;
3387 GLboolean AMD_vertex_shader_layer
;
3388 GLboolean APPLE_object_purgeable
;
3389 GLboolean ATI_envmap_bumpmap
;
3390 GLboolean ATI_texture_compression_3dc
;
3391 GLboolean ATI_texture_mirror_once
;
3392 GLboolean ATI_texture_env_combine3
;
3393 GLboolean ATI_fragment_shader
;
3394 GLboolean ATI_separate_stencil
;
3395 GLboolean MESA_pack_invert
;
3396 GLboolean MESA_texture_array
;
3397 GLboolean MESA_ycbcr_texture
;
3398 GLboolean NV_conditional_render
;
3399 GLboolean NV_fog_distance
;
3400 GLboolean NV_fragment_program_option
;
3401 GLboolean NV_point_sprite
;
3402 GLboolean NV_primitive_restart
;
3403 GLboolean NV_texture_barrier
;
3404 GLboolean NV_texture_env_combine4
;
3405 GLboolean NV_texture_rectangle
;
3406 GLboolean NV_vdpau_interop
;
3407 GLboolean TDFX_texture_compression_FXT1
;
3408 GLboolean OES_EGL_image
;
3409 GLboolean OES_draw_texture
;
3410 GLboolean OES_depth_texture_cube_map
;
3411 GLboolean OES_EGL_image_external
;
3412 GLboolean OES_compressed_ETC1_RGB8_texture
;
3413 GLboolean extension_sentinel
;
3414 /** The extension string */
3415 const GLubyte
*String
;
3416 /** Number of supported extensions */
3422 * A stack of matrices (projection, modelview, color, texture, etc).
3424 struct gl_matrix_stack
3426 GLmatrix
*Top
; /**< points into Stack */
3427 GLmatrix
*Stack
; /**< array [MaxDepth] of GLmatrix */
3428 GLuint Depth
; /**< 0 <= Depth < MaxDepth */
3429 GLuint MaxDepth
; /**< size of Stack[] array */
3430 GLuint DirtyFlag
; /**< _NEW_MODELVIEW or _NEW_PROJECTION, for example */
3435 * \name Bits for image transfer operations
3436 * \sa __struct gl_contextRec::ImageTransferState.
3439 #define IMAGE_SCALE_BIAS_BIT 0x1
3440 #define IMAGE_SHIFT_OFFSET_BIT 0x2
3441 #define IMAGE_MAP_COLOR_BIT 0x4
3442 #define IMAGE_CLAMP_BIT 0x800
3445 /** Pixel Transfer ops */
3446 #define IMAGE_BITS (IMAGE_SCALE_BIAS_BIT | \
3447 IMAGE_SHIFT_OFFSET_BIT | \
3448 IMAGE_MAP_COLOR_BIT)
3451 * \name Bits to indicate what state has changed.
3454 #define _NEW_MODELVIEW (1 << 0) /**< gl_context::ModelView */
3455 #define _NEW_PROJECTION (1 << 1) /**< gl_context::Projection */
3456 #define _NEW_TEXTURE_MATRIX (1 << 2) /**< gl_context::TextureMatrix */
3457 #define _NEW_COLOR (1 << 3) /**< gl_context::Color */
3458 #define _NEW_DEPTH (1 << 4) /**< gl_context::Depth */
3459 #define _NEW_EVAL (1 << 5) /**< gl_context::Eval, EvalMap */
3460 #define _NEW_FOG (1 << 6) /**< gl_context::Fog */
3461 #define _NEW_HINT (1 << 7) /**< gl_context::Hint */
3462 #define _NEW_LIGHT (1 << 8) /**< gl_context::Light */
3463 #define _NEW_LINE (1 << 9) /**< gl_context::Line */
3464 #define _NEW_PIXEL (1 << 10) /**< gl_context::Pixel */
3465 #define _NEW_POINT (1 << 11) /**< gl_context::Point */
3466 #define _NEW_POLYGON (1 << 12) /**< gl_context::Polygon */
3467 #define _NEW_POLYGONSTIPPLE (1 << 13) /**< gl_context::PolygonStipple */
3468 #define _NEW_SCISSOR (1 << 14) /**< gl_context::Scissor */
3469 #define _NEW_STENCIL (1 << 15) /**< gl_context::Stencil */
3470 #define _NEW_TEXTURE (1 << 16) /**< gl_context::Texture */
3471 #define _NEW_TRANSFORM (1 << 17) /**< gl_context::Transform */
3472 #define _NEW_VIEWPORT (1 << 18) /**< gl_context::Viewport */
3473 /* gap, re-use for core Mesa state only; use ctx->DriverFlags otherwise */
3474 #define _NEW_ARRAY (1 << 20) /**< gl_context::Array */
3475 #define _NEW_RENDERMODE (1 << 21) /**< gl_context::RenderMode, etc */
3476 #define _NEW_BUFFERS (1 << 22) /**< gl_context::Visual, DrawBuffer, */
3477 #define _NEW_CURRENT_ATTRIB (1 << 23) /**< gl_context::Current */
3478 #define _NEW_MULTISAMPLE (1 << 24) /**< gl_context::Multisample */
3479 #define _NEW_TRACK_MATRIX (1 << 25) /**< gl_context::VertexProgram */
3480 #define _NEW_PROGRAM (1 << 26) /**< New program/shader state */
3481 #define _NEW_PROGRAM_CONSTANTS (1 << 27)
3482 #define _NEW_BUFFER_OBJECT (1 << 28)
3483 #define _NEW_FRAG_CLAMP (1 << 29)
3484 /* gap, re-use for core Mesa state only; use ctx->DriverFlags otherwise */
3485 #define _NEW_VARYING_VP_INPUTS (1 << 31) /**< gl_context::varying_vp_inputs */
3491 * Composite state flags
3494 #define _MESA_NEW_NEED_EYE_COORDS (_NEW_LIGHT | \
3500 #define _MESA_NEW_SEPARATE_SPECULAR (_NEW_LIGHT | \
3510 /* This has to be included here. */
3515 * Display list flags.
3516 * Strictly this is a tnl-private concept, but it doesn't seem
3517 * worthwhile adding a tnl private structure just to hold this one bit
3520 #define DLIST_DANGLING_REFS 0x1
3523 /** Opaque declaration of display list payload data type */
3524 union gl_dlist_node
;
3528 * Provide a location where information about a display list can be
3529 * collected. Could be extended with driverPrivate structures,
3530 * etc. in the future.
3532 struct gl_display_list
3535 GLchar
*Label
; /**< GL_KHR_debug */
3536 GLbitfield Flags
; /**< DLIST_x flags */
3537 /** The dlist commands are in a linked list of nodes */
3538 union gl_dlist_node
*Head
;
3543 * State used during display list compilation and execution.
3545 struct gl_dlist_state
3547 GLuint CallDepth
; /**< Current recursion calling depth */
3549 struct gl_display_list
*CurrentList
; /**< List currently being compiled */
3550 union gl_dlist_node
*CurrentBlock
; /**< Pointer to current block of nodes */
3551 GLuint CurrentPos
; /**< Index into current block of nodes */
3553 GLvertexformat ListVtxfmt
;
3555 GLubyte ActiveAttribSize
[VERT_ATTRIB_MAX
];
3556 GLfloat CurrentAttrib
[VERT_ATTRIB_MAX
][4];
3558 GLubyte ActiveMaterialSize
[MAT_ATTRIB_MAX
];
3559 GLfloat CurrentMaterial
[MAT_ATTRIB_MAX
][4];
3562 /* State known to have been set by the currently-compiling display
3563 * list. Used to eliminate some redundant state changes.
3571 * These are a mapping of the GL_ARB_debug_output/GL_KHR_debug enums
3572 * to small enums suitable for use as an array index.
3575 enum mesa_debug_source
{
3576 MESA_DEBUG_SOURCE_API
,
3577 MESA_DEBUG_SOURCE_WINDOW_SYSTEM
,
3578 MESA_DEBUG_SOURCE_SHADER_COMPILER
,
3579 MESA_DEBUG_SOURCE_THIRD_PARTY
,
3580 MESA_DEBUG_SOURCE_APPLICATION
,
3581 MESA_DEBUG_SOURCE_OTHER
,
3582 MESA_DEBUG_SOURCE_COUNT
3585 enum mesa_debug_type
{
3586 MESA_DEBUG_TYPE_ERROR
,
3587 MESA_DEBUG_TYPE_DEPRECATED
,
3588 MESA_DEBUG_TYPE_UNDEFINED
,
3589 MESA_DEBUG_TYPE_PORTABILITY
,
3590 MESA_DEBUG_TYPE_PERFORMANCE
,
3591 MESA_DEBUG_TYPE_OTHER
,
3592 MESA_DEBUG_TYPE_MARKER
,
3593 MESA_DEBUG_TYPE_PUSH_GROUP
,
3594 MESA_DEBUG_TYPE_POP_GROUP
,
3595 MESA_DEBUG_TYPE_COUNT
3598 enum mesa_debug_severity
{
3599 MESA_DEBUG_SEVERITY_LOW
,
3600 MESA_DEBUG_SEVERITY_MEDIUM
,
3601 MESA_DEBUG_SEVERITY_HIGH
,
3602 MESA_DEBUG_SEVERITY_NOTIFICATION
,
3603 MESA_DEBUG_SEVERITY_COUNT
3609 * An error, warning, or other piece of debug information for an application
3610 * to consume via GL_ARB_debug_output/GL_KHR_debug.
3614 enum mesa_debug_source source
;
3615 enum mesa_debug_type type
;
3617 enum mesa_debug_severity severity
;
3622 struct gl_debug_namespace
3624 struct _mesa_HashTable
*IDs
;
3625 unsigned ZeroID
; /* a HashTable won't take zero, so store its state here */
3626 /** lists of IDs in the hash table at each severity */
3627 struct simple_node Severity
[MESA_DEBUG_SEVERITY_COUNT
];
3630 struct gl_debug_state
3632 GLDEBUGPROC Callback
;
3633 const void *CallbackData
;
3634 GLboolean SyncOutput
;
3635 GLboolean DebugOutput
;
3636 GLboolean ARBCallback
; /* Used to track if current callback is of type ARB_debug_output or KHR_debug */
3637 GLboolean Defaults
[MAX_DEBUG_GROUP_STACK_DEPTH
][MESA_DEBUG_SEVERITY_COUNT
][MESA_DEBUG_SOURCE_COUNT
][MESA_DEBUG_TYPE_COUNT
];
3638 struct gl_debug_namespace Namespaces
[MAX_DEBUG_GROUP_STACK_DEPTH
][MESA_DEBUG_SOURCE_COUNT
][MESA_DEBUG_TYPE_COUNT
];
3639 struct gl_debug_msg Log
[MAX_DEBUG_LOGGED_MESSAGES
];
3640 struct gl_debug_msg DebugGroupMsgs
[MAX_DEBUG_GROUP_STACK_DEPTH
];
3641 GLint GroupStackDepth
;
3644 GLint NextMsgLength
; /* redundant, but copied here from Log[NextMsg].length
3645 for the sake of the offsetof() code in get.c */
3649 * Enum for the OpenGL APIs we know about and may support.
3651 * NOTE: This must match the api_enum table in
3652 * src/mesa/main/get_hash_generator.py
3656 API_OPENGL_COMPAT
, /* legacy / compatibility contexts */
3660 API_OPENGL_LAST
= API_OPENGL_CORE
3664 * Driver-specific state flags.
3666 * These are or'd with gl_context::NewDriverState to notify a driver about
3667 * a state change. The driver sets the flags at context creation and
3668 * the meaning of the bits set is opaque to core Mesa.
3670 struct gl_driver_flags
3672 /** gl_context::Array::_DrawArrays (vertex array state) */
3673 GLbitfield NewArray
;
3675 /** gl_context::TransformFeedback::CurrentObject */
3676 GLbitfield NewTransformFeedback
;
3678 /** gl_context::RasterDiscard */
3679 GLbitfield NewRasterizerDiscard
;
3682 * gl_context::UniformBufferBindings
3683 * gl_shader_program::UniformBlocks
3685 GLbitfield NewUniformBuffer
;
3688 * gl_context::AtomicBufferBindings
3690 GLbitfield NewAtomicBuffer
;
3693 struct gl_uniform_buffer_binding
3695 struct gl_buffer_object
*BufferObject
;
3696 /** Start of uniform block data in the buffer */
3698 /** Size of data allowed to be referenced from the buffer (in bytes) */
3701 * glBindBufferBase() indicates that the Size should be ignored and only
3702 * limited by the current size of the BufferObject.
3704 GLboolean AutomaticSize
;
3708 * Binding point for an atomic counter buffer object.
3710 struct gl_atomic_buffer_binding
3712 struct gl_buffer_object
*BufferObject
;
3718 * Mesa rendering context.
3720 * This is the central context data structure for Mesa. Almost all
3721 * OpenGL state is contained in this structure.
3722 * Think of this as a base class from which device drivers will derive
3727 /** State possibly shared with other contexts in the address space */
3728 struct gl_shared_state
*Shared
;
3730 /** \name API function pointer tables */
3734 * The current dispatch table for non-displaylist-saving execution, either
3735 * BeginEnd or OutsideBeginEnd
3737 struct _glapi_table
*Exec
;
3739 * The normal dispatch table for non-displaylist-saving, non-begin/end
3741 struct _glapi_table
*OutsideBeginEnd
;
3742 /** The dispatch table used between glNewList() and glEndList() */
3743 struct _glapi_table
*Save
;
3745 * The dispatch table used between glBegin() and glEnd() (outside of a
3746 * display list). Only valid functions between those two are set, which is
3747 * mostly just the set in a GLvertexformat struct.
3749 struct _glapi_table
*BeginEnd
;
3751 * Tracks the current dispatch table out of the 3 above, so that it can be
3752 * re-set on glXMakeCurrent().
3754 struct _glapi_table
*CurrentDispatch
;
3757 struct gl_config Visual
;
3758 struct gl_framebuffer
*DrawBuffer
; /**< buffer for writing */
3759 struct gl_framebuffer
*ReadBuffer
; /**< buffer for reading */
3760 struct gl_framebuffer
*WinSysDrawBuffer
; /**< set with MakeCurrent */
3761 struct gl_framebuffer
*WinSysReadBuffer
; /**< set with MakeCurrent */
3764 * Device driver function pointer table
3766 struct dd_function_table Driver
;
3768 /** Core/Driver constants */
3769 struct gl_constants Const
;
3771 /** \name The various 4x4 matrix stacks */
3773 struct gl_matrix_stack ModelviewMatrixStack
;
3774 struct gl_matrix_stack ProjectionMatrixStack
;
3775 struct gl_matrix_stack TextureMatrixStack
[MAX_TEXTURE_UNITS
];
3776 struct gl_matrix_stack ProgramMatrixStack
[MAX_PROGRAM_MATRICES
];
3777 struct gl_matrix_stack
*CurrentStack
; /**< Points to one of the above stacks */
3780 /** Combined modelview and projection matrix */
3781 GLmatrix _ModelProjectMatrix
;
3783 /** \name Display lists */
3784 struct gl_dlist_state ListState
;
3786 GLboolean ExecuteFlag
; /**< Execute GL commands? */
3787 GLboolean CompileFlag
; /**< Compile GL commands into display list? */
3789 /** Extension information */
3790 struct gl_extensions Extensions
;
3792 /** GL version integer, for example 31 for GL 3.1, or 20 for GLES 2.0. */
3794 char *VersionString
;
3796 /** \name State attribute stack (for glPush/PopAttrib) */
3798 GLuint AttribStackDepth
;
3799 struct gl_attrib_node
*AttribStack
[MAX_ATTRIB_STACK_DEPTH
];
3802 /** \name Renderer attribute groups
3804 * We define a struct for each attribute group to make pushing and popping
3805 * attributes easy. Also it's a good organization.
3808 struct gl_accum_attrib Accum
; /**< Accum buffer attributes */
3809 struct gl_colorbuffer_attrib Color
; /**< Color buffer attributes */
3810 struct gl_current_attrib Current
; /**< Current attributes */
3811 struct gl_depthbuffer_attrib Depth
; /**< Depth buffer attributes */
3812 struct gl_eval_attrib Eval
; /**< Eval attributes */
3813 struct gl_fog_attrib Fog
; /**< Fog attributes */
3814 struct gl_hint_attrib Hint
; /**< Hint attributes */
3815 struct gl_light_attrib Light
; /**< Light attributes */
3816 struct gl_line_attrib Line
; /**< Line attributes */
3817 struct gl_list_attrib List
; /**< List attributes */
3818 struct gl_multisample_attrib Multisample
;
3819 struct gl_pixel_attrib Pixel
; /**< Pixel attributes */
3820 struct gl_point_attrib Point
; /**< Point attributes */
3821 struct gl_polygon_attrib Polygon
; /**< Polygon attributes */
3822 GLuint PolygonStipple
[32]; /**< Polygon stipple */
3823 struct gl_scissor_attrib Scissor
; /**< Scissor attributes */
3824 struct gl_stencil_attrib Stencil
; /**< Stencil buffer attributes */
3825 struct gl_texture_attrib Texture
; /**< Texture attributes */
3826 struct gl_transform_attrib Transform
; /**< Transformation attributes */
3827 struct gl_viewport_attrib Viewport
; /**< Viewport attributes */
3830 /** \name Client attribute stack */
3832 GLuint ClientAttribStackDepth
;
3833 struct gl_attrib_node
*ClientAttribStack
[MAX_CLIENT_ATTRIB_STACK_DEPTH
];
3836 /** \name Client attribute groups */
3838 struct gl_array_attrib Array
; /**< Vertex arrays */
3839 struct gl_pixelstore_attrib Pack
; /**< Pixel packing */
3840 struct gl_pixelstore_attrib Unpack
; /**< Pixel unpacking */
3841 struct gl_pixelstore_attrib DefaultPacking
; /**< Default params */
3844 /** \name Other assorted state (not pushed/popped on attribute stack) */
3846 struct gl_pixelmaps PixelMaps
;
3848 struct gl_evaluators EvalMap
; /**< All evaluators */
3849 struct gl_feedback Feedback
; /**< Feedback */
3850 struct gl_selection Select
; /**< Selection */
3852 struct gl_program_state Program
; /**< general program state */
3853 struct gl_vertex_program_state VertexProgram
;
3854 struct gl_fragment_program_state FragmentProgram
;
3855 struct gl_geometry_program_state GeometryProgram
;
3856 struct gl_ati_fragment_shader_state ATIFragmentShader
;
3858 struct gl_shader_state Shader
; /**< GLSL shader object state */
3859 struct gl_shader_compiler_options ShaderCompilerOptions
[MESA_SHADER_TYPES
];
3861 struct gl_query_state Query
; /**< occlusion, timer queries */
3863 struct gl_transform_feedback_state TransformFeedback
;
3865 struct gl_perf_monitor_state PerfMonitor
;
3867 struct gl_buffer_object
*CopyReadBuffer
; /**< GL_ARB_copy_buffer */
3868 struct gl_buffer_object
*CopyWriteBuffer
; /**< GL_ARB_copy_buffer */
3871 * Current GL_ARB_uniform_buffer_object binding referenced by
3872 * GL_UNIFORM_BUFFER target for glBufferData, glMapBuffer, etc.
3874 struct gl_buffer_object
*UniformBuffer
;
3877 * Array of uniform buffers for GL_ARB_uniform_buffer_object and GL 3.1.
3878 * This is set up using glBindBufferRange() or glBindBufferBase(). They are
3879 * associated with uniform blocks by glUniformBlockBinding()'s state in the
3882 struct gl_uniform_buffer_binding
3883 UniformBufferBindings
[MAX_COMBINED_UNIFORM_BUFFERS
];
3886 * Object currently associated with the GL_ATOMIC_COUNTER_BUFFER
3889 struct gl_buffer_object
*AtomicBuffer
;
3892 * Array of atomic counter buffer binding points.
3894 struct gl_atomic_buffer_binding
3895 AtomicBufferBindings
[MAX_COMBINED_ATOMIC_BUFFERS
];
3899 struct gl_meta_state
*Meta
; /**< for "meta" operations */
3901 /* GL_EXT_framebuffer_object */
3902 struct gl_renderbuffer
*CurrentRenderbuffer
;
3904 GLenum ErrorValue
; /**< Last error code */
3907 * Recognize and silence repeated error debug messages in buggy apps.
3909 const char *ErrorDebugFmtString
;
3910 GLuint ErrorDebugCount
;
3912 /* GL_ARB_debug_output/GL_KHR_debug */
3913 struct gl_debug_state Debug
;
3915 GLenum RenderMode
; /**< either GL_RENDER, GL_SELECT, GL_FEEDBACK */
3916 GLbitfield NewState
; /**< bitwise-or of _NEW_* flags */
3917 GLbitfield NewDriverState
;/**< bitwise-or of flags from DriverFlags */
3919 struct gl_driver_flags DriverFlags
;
3921 GLboolean ViewportInitialized
; /**< has viewport size been initialized? */
3923 GLbitfield64 varying_vp_inputs
; /**< mask of VERT_BIT_* flags */
3925 /** \name Derived state */
3926 GLbitfield _ImageTransferState
;/**< bitwise-or of IMAGE_*_BIT flags */
3927 GLfloat _EyeZDir
[3];
3928 GLfloat _ModelViewInvScale
;
3929 GLboolean _NeedEyeCoords
;
3930 GLboolean _ForceEyeCoords
;
3932 GLuint TextureStateTimestamp
; /**< detect changes to shared state */
3934 struct gl_list_extensions
*ListExt
; /**< driver dlist extensions */
3936 /** \name For debugging/development only */
3938 GLboolean FirstTimeCurrent
;
3941 /** software compression/decompression supported or not */
3942 GLboolean Mesa_DXTn
;
3944 GLboolean TextureFormatSupported
[MESA_FORMAT_COUNT
];
3946 GLboolean RasterDiscard
; /**< GL_RASTERIZER_DISCARD */
3949 * \name Hooks for module contexts.
3951 * These will eventually live in the driver or elsewhere.
3954 void *swrast_context
;
3955 void *swsetup_context
;
3956 void *swtnl_context
;
3957 struct vbo_context
*vbo_context
;
3958 struct st_context
*st
;
3963 * \name NV_vdpau_interop
3966 const void *vdpDevice
;
3967 const void *vdpGetProcAddress
;
3968 struct set
*vdpSurfaces
;
3974 extern int MESA_VERBOSE
;
3975 extern int MESA_DEBUG_FLAGS
;
3976 # define MESA_FUNCTION __FUNCTION__
3978 # define MESA_VERBOSE 0
3979 # define MESA_DEBUG_FLAGS 0
3980 # define MESA_FUNCTION "a function"
3987 /** The MESA_VERBOSE var is a bitmask of these flags */
3990 VERBOSE_VARRAY
= 0x0001,
3991 VERBOSE_TEXTURE
= 0x0002,
3992 VERBOSE_MATERIAL
= 0x0004,
3993 VERBOSE_PIPELINE
= 0x0008,
3994 VERBOSE_DRIVER
= 0x0010,
3995 VERBOSE_STATE
= 0x0020,
3996 VERBOSE_API
= 0x0040,
3997 VERBOSE_DISPLAY_LIST
= 0x0100,
3998 VERBOSE_LIGHTING
= 0x0200,
3999 VERBOSE_PRIMS
= 0x0400,
4000 VERBOSE_VERTS
= 0x0800,
4001 VERBOSE_DISASSEM
= 0x1000,
4002 VERBOSE_DRAW
= 0x2000,
4003 VERBOSE_SWAPBUFFERS
= 0x4000
4007 /** The MESA_DEBUG_FLAGS var is a bitmask of these flags */
4010 DEBUG_SILENT
= (1 << 0),
4011 DEBUG_ALWAYS_FLUSH
= (1 << 1),
4012 DEBUG_INCOMPLETE_TEXTURE
= (1 << 2),
4013 DEBUG_INCOMPLETE_FBO
= (1 << 3)
4022 #endif /* MTYPES_H */