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 */
40 #include "main/glheader.h"
41 #include "main/config.h"
42 #include "glapi/glapi.h"
43 #include "math/m_matrix.h" /* GLmatrix */
44 #include "main/simple_list.h" /* struct simple_node */
45 #include "main/formats.h" /* MESA_FORMAT_COUNT */
54 * \name 64-bit extension of GLbitfield.
57 typedef GLuint64 GLbitfield64
;
59 /** Set a single bit */
60 #define BITFIELD64_BIT(b) ((GLbitfield64)1 << (b))
61 /** Set all bits up to excluding bit b */
62 #define BITFIELD64_MASK(b) \
63 ((b) == 64 ? (~(GLbitfield64)0) : BITFIELD64_BIT(b) - 1)
64 /** Set count bits starting from bit b */
65 #define BITFIELD64_RANGE(b, count) \
66 (BITFIELD64_MASK((b) + (count)) & ~BITFIELD64_MASK(b))
70 * \name Some forward type declarations
73 struct _mesa_HashTable
;
74 struct gl_attrib_node
;
75 struct gl_list_extensions
;
77 struct gl_program_cache
;
78 struct gl_texture_object
;
81 struct gl_uniform_storage
;
82 struct prog_instruction
;
83 struct gl_program_parameter_list
;
90 /** Extra draw modes beyond GL_POINTS, GL_TRIANGLE_FAN, etc */
91 #define PRIM_MAX GL_TRIANGLE_STRIP_ADJACENCY
92 #define PRIM_OUTSIDE_BEGIN_END (PRIM_MAX + 1)
93 #define PRIM_UNKNOWN (PRIM_MAX + 2)
98 * Indexes for vertex program attributes.
99 * GL_NV_vertex_program aliases generic attributes over the conventional
100 * attributes. In GL_ARB_vertex_program shader the aliasing is optional.
101 * In GL_ARB_vertex_shader / OpenGL 2.0 the aliasing is disallowed (the
102 * generic attributes are distinct/separate).
107 VERT_ATTRIB_WEIGHT
= 1,
108 VERT_ATTRIB_NORMAL
= 2,
109 VERT_ATTRIB_COLOR0
= 3,
110 VERT_ATTRIB_COLOR1
= 4,
112 VERT_ATTRIB_COLOR_INDEX
= 6,
113 VERT_ATTRIB_EDGEFLAG
= 7,
114 VERT_ATTRIB_TEX0
= 8,
115 VERT_ATTRIB_TEX1
= 9,
116 VERT_ATTRIB_TEX2
= 10,
117 VERT_ATTRIB_TEX3
= 11,
118 VERT_ATTRIB_TEX4
= 12,
119 VERT_ATTRIB_TEX5
= 13,
120 VERT_ATTRIB_TEX6
= 14,
121 VERT_ATTRIB_TEX7
= 15,
122 VERT_ATTRIB_POINT_SIZE
= 16,
123 VERT_ATTRIB_GENERIC0
= 17,
124 VERT_ATTRIB_GENERIC1
= 18,
125 VERT_ATTRIB_GENERIC2
= 19,
126 VERT_ATTRIB_GENERIC3
= 20,
127 VERT_ATTRIB_GENERIC4
= 21,
128 VERT_ATTRIB_GENERIC5
= 22,
129 VERT_ATTRIB_GENERIC6
= 23,
130 VERT_ATTRIB_GENERIC7
= 24,
131 VERT_ATTRIB_GENERIC8
= 25,
132 VERT_ATTRIB_GENERIC9
= 26,
133 VERT_ATTRIB_GENERIC10
= 27,
134 VERT_ATTRIB_GENERIC11
= 28,
135 VERT_ATTRIB_GENERIC12
= 29,
136 VERT_ATTRIB_GENERIC13
= 30,
137 VERT_ATTRIB_GENERIC14
= 31,
138 VERT_ATTRIB_GENERIC15
= 32,
143 * Symbolic constats to help iterating over
144 * specific blocks of vertex attributes.
147 * includes all fixed function attributes as well as
148 * the aliased GL_NV_vertex_program shader attributes.
150 * include the classic texture coordinate attributes.
151 * Is a subset of VERT_ATTRIB_FF.
152 * VERT_ATTRIB_GENERIC
153 * include the OpenGL 2.0+ GLSL generic shader attributes.
154 * These alias the generic GL_ARB_vertex_shader attributes.
156 #define VERT_ATTRIB_FF(i) (VERT_ATTRIB_POS + (i))
157 #define VERT_ATTRIB_FF_MAX VERT_ATTRIB_GENERIC0
159 #define VERT_ATTRIB_TEX(i) (VERT_ATTRIB_TEX0 + (i))
160 #define VERT_ATTRIB_TEX_MAX MAX_TEXTURE_COORD_UNITS
162 #define VERT_ATTRIB_GENERIC(i) (VERT_ATTRIB_GENERIC0 + (i))
163 #define VERT_ATTRIB_GENERIC_MAX MAX_VERTEX_GENERIC_ATTRIBS
166 * Bitflags for vertex attributes.
167 * These are used in bitfields in many places.
170 #define VERT_BIT_POS BITFIELD64_BIT(VERT_ATTRIB_POS)
171 #define VERT_BIT_WEIGHT BITFIELD64_BIT(VERT_ATTRIB_WEIGHT)
172 #define VERT_BIT_NORMAL BITFIELD64_BIT(VERT_ATTRIB_NORMAL)
173 #define VERT_BIT_COLOR0 BITFIELD64_BIT(VERT_ATTRIB_COLOR0)
174 #define VERT_BIT_COLOR1 BITFIELD64_BIT(VERT_ATTRIB_COLOR1)
175 #define VERT_BIT_FOG BITFIELD64_BIT(VERT_ATTRIB_FOG)
176 #define VERT_BIT_COLOR_INDEX BITFIELD64_BIT(VERT_ATTRIB_COLOR_INDEX)
177 #define VERT_BIT_EDGEFLAG BITFIELD64_BIT(VERT_ATTRIB_EDGEFLAG)
178 #define VERT_BIT_TEX0 BITFIELD64_BIT(VERT_ATTRIB_TEX0)
179 #define VERT_BIT_TEX1 BITFIELD64_BIT(VERT_ATTRIB_TEX1)
180 #define VERT_BIT_TEX2 BITFIELD64_BIT(VERT_ATTRIB_TEX2)
181 #define VERT_BIT_TEX3 BITFIELD64_BIT(VERT_ATTRIB_TEX3)
182 #define VERT_BIT_TEX4 BITFIELD64_BIT(VERT_ATTRIB_TEX4)
183 #define VERT_BIT_TEX5 BITFIELD64_BIT(VERT_ATTRIB_TEX5)
184 #define VERT_BIT_TEX6 BITFIELD64_BIT(VERT_ATTRIB_TEX6)
185 #define VERT_BIT_TEX7 BITFIELD64_BIT(VERT_ATTRIB_TEX7)
186 #define VERT_BIT_POINT_SIZE BITFIELD64_BIT(VERT_ATTRIB_POINT_SIZE)
187 #define VERT_BIT_GENERIC0 BITFIELD64_BIT(VERT_ATTRIB_GENERIC0)
189 #define VERT_BIT(i) BITFIELD64_BIT(i)
190 #define VERT_BIT_ALL BITFIELD64_RANGE(0, VERT_ATTRIB_MAX)
192 #define VERT_BIT_FF(i) VERT_BIT(i)
193 #define VERT_BIT_FF_ALL BITFIELD64_RANGE(0, VERT_ATTRIB_FF_MAX)
194 #define VERT_BIT_TEX(i) VERT_BIT(VERT_ATTRIB_TEX(i))
195 #define VERT_BIT_TEX_ALL \
196 BITFIELD64_RANGE(VERT_ATTRIB_TEX(0), VERT_ATTRIB_TEX_MAX)
198 #define VERT_BIT_GENERIC(i) VERT_BIT(VERT_ATTRIB_GENERIC(i))
199 #define VERT_BIT_GENERIC_ALL \
200 BITFIELD64_RANGE(VERT_ATTRIB_GENERIC(0), VERT_ATTRIB_GENERIC_MAX)
205 * Indexes for vertex shader outputs, geometry shader inputs/outputs, and
206 * fragment shader inputs.
208 * Note that some of these values are not available to all pipeline stages.
210 * When this enum is updated, the following code must be updated too:
211 * - vertResults (in prog_print.c's arb_output_attrib_string())
212 * - fragAttribs (in prog_print.c's arb_input_attrib_string())
213 * - _mesa_varying_slot_in_fs()
218 VARYING_SLOT_COL0
, /* COL0 and COL1 must be contiguous */
221 VARYING_SLOT_TEX0
, /* TEX0-TEX7 must be contiguous */
229 VARYING_SLOT_PSIZ
, /* Does not appear in FS */
230 VARYING_SLOT_BFC0
, /* Does not appear in FS */
231 VARYING_SLOT_BFC1
, /* Does not appear in FS */
232 VARYING_SLOT_EDGE
, /* Does not appear in FS */
233 VARYING_SLOT_CLIP_VERTEX
, /* Does not appear in FS */
234 VARYING_SLOT_CLIP_DIST0
,
235 VARYING_SLOT_CLIP_DIST1
,
236 VARYING_SLOT_PRIMITIVE_ID
, /* Does not appear in VS */
237 VARYING_SLOT_LAYER
, /* Appears as VS or GS output */
238 VARYING_SLOT_FACE
, /* FS only */
239 VARYING_SLOT_PNTC
, /* FS only */
240 VARYING_SLOT_VAR0
, /* First generic varying slot */
241 VARYING_SLOT_MAX
= VARYING_SLOT_VAR0
+ MAX_VARYING
246 * Bitflags for varying slots.
249 #define VARYING_BIT_POS BITFIELD64_BIT(VARYING_SLOT_POS)
250 #define VARYING_BIT_COL0 BITFIELD64_BIT(VARYING_SLOT_COL0)
251 #define VARYING_BIT_COL1 BITFIELD64_BIT(VARYING_SLOT_COL1)
252 #define VARYING_BIT_FOGC BITFIELD64_BIT(VARYING_SLOT_FOGC)
253 #define VARYING_BIT_TEX0 BITFIELD64_BIT(VARYING_SLOT_TEX0)
254 #define VARYING_BIT_TEX1 BITFIELD64_BIT(VARYING_SLOT_TEX1)
255 #define VARYING_BIT_TEX2 BITFIELD64_BIT(VARYING_SLOT_TEX2)
256 #define VARYING_BIT_TEX3 BITFIELD64_BIT(VARYING_SLOT_TEX3)
257 #define VARYING_BIT_TEX4 BITFIELD64_BIT(VARYING_SLOT_TEX4)
258 #define VARYING_BIT_TEX5 BITFIELD64_BIT(VARYING_SLOT_TEX5)
259 #define VARYING_BIT_TEX6 BITFIELD64_BIT(VARYING_SLOT_TEX6)
260 #define VARYING_BIT_TEX7 BITFIELD64_BIT(VARYING_SLOT_TEX7)
261 #define VARYING_BIT_TEX(U) BITFIELD64_BIT(VARYING_SLOT_TEX0 + (U))
262 #define VARYING_BITS_TEX_ANY BITFIELD64_RANGE(VARYING_SLOT_TEX0, \
263 MAX_TEXTURE_COORD_UNITS)
264 #define VARYING_BIT_PSIZ BITFIELD64_BIT(VARYING_SLOT_PSIZ)
265 #define VARYING_BIT_BFC0 BITFIELD64_BIT(VARYING_SLOT_BFC0)
266 #define VARYING_BIT_BFC1 BITFIELD64_BIT(VARYING_SLOT_BFC1)
267 #define VARYING_BIT_EDGE BITFIELD64_BIT(VARYING_SLOT_EDGE)
268 #define VARYING_BIT_CLIP_VERTEX BITFIELD64_BIT(VARYING_SLOT_CLIP_VERTEX)
269 #define VARYING_BIT_CLIP_DIST0 BITFIELD64_BIT(VARYING_SLOT_CLIP_DIST0)
270 #define VARYING_BIT_CLIP_DIST1 BITFIELD64_BIT(VARYING_SLOT_CLIP_DIST1)
271 #define VARYING_BIT_PRIMITIVE_ID BITFIELD64_BIT(VARYING_SLOT_PRIMITIVE_ID)
272 #define VARYING_BIT_LAYER BITFIELD64_BIT(VARYING_SLOT_LAYER)
273 #define VARYING_BIT_FACE BITFIELD64_BIT(VARYING_SLOT_FACE)
274 #define VARYING_BIT_PNTC BITFIELD64_BIT(VARYING_SLOT_PNTC)
275 #define VARYING_BIT_VAR(V) BITFIELD64_BIT(VARYING_SLOT_VAR0 + (V))
279 * Bitflags for system values.
281 #define SYSTEM_BIT_SAMPLE_ID BITFIELD64_BIT(SYSTEM_VALUE_SAMPLE_ID)
282 #define SYSTEM_BIT_SAMPLE_POS BITFIELD64_BIT(SYSTEM_VALUE_SAMPLE_POS)
283 #define SYSTEM_BIT_SAMPLE_MASK_IN BITFIELD64_BIT(SYSTEM_VALUE_SAMPLE_MASK_IN)
286 * Determine if the given gl_varying_slot appears in the fragment shader.
288 static inline GLboolean
289 _mesa_varying_slot_in_fs(gl_varying_slot slot
)
292 case VARYING_SLOT_PSIZ
:
293 case VARYING_SLOT_BFC0
:
294 case VARYING_SLOT_BFC1
:
295 case VARYING_SLOT_EDGE
:
296 case VARYING_SLOT_CLIP_VERTEX
:
297 case VARYING_SLOT_LAYER
:
306 * Fragment program results
310 FRAG_RESULT_DEPTH
= 0,
311 FRAG_RESULT_STENCIL
= 1,
312 /* If a single color should be written to all render targets, this
313 * register is written. No FRAG_RESULT_DATAn will be written.
315 FRAG_RESULT_COLOR
= 2,
316 FRAG_RESULT_SAMPLE_MASK
= 3,
318 /* FRAG_RESULT_DATAn are the per-render-target (GLSL gl_FragData[n]
319 * or ARB_fragment_program fragment.color[n]) color results. If
320 * any are written, FRAG_RESULT_COLOR will not be written.
322 FRAG_RESULT_DATA0
= 4,
323 FRAG_RESULT_MAX
= (FRAG_RESULT_DATA0
+ MAX_DRAW_BUFFERS
)
328 * Indexes for all renderbuffers
332 /* the four standard color buffers */
340 /* optional aux buffer */
342 /* generic renderbuffers */
355 * Bit flags for all renderbuffers
357 #define BUFFER_BIT_FRONT_LEFT (1 << BUFFER_FRONT_LEFT)
358 #define BUFFER_BIT_BACK_LEFT (1 << BUFFER_BACK_LEFT)
359 #define BUFFER_BIT_FRONT_RIGHT (1 << BUFFER_FRONT_RIGHT)
360 #define BUFFER_BIT_BACK_RIGHT (1 << BUFFER_BACK_RIGHT)
361 #define BUFFER_BIT_AUX0 (1 << BUFFER_AUX0)
362 #define BUFFER_BIT_AUX1 (1 << BUFFER_AUX1)
363 #define BUFFER_BIT_AUX2 (1 << BUFFER_AUX2)
364 #define BUFFER_BIT_AUX3 (1 << BUFFER_AUX3)
365 #define BUFFER_BIT_DEPTH (1 << BUFFER_DEPTH)
366 #define BUFFER_BIT_STENCIL (1 << BUFFER_STENCIL)
367 #define BUFFER_BIT_ACCUM (1 << BUFFER_ACCUM)
368 #define BUFFER_BIT_COLOR0 (1 << BUFFER_COLOR0)
369 #define BUFFER_BIT_COLOR1 (1 << BUFFER_COLOR1)
370 #define BUFFER_BIT_COLOR2 (1 << BUFFER_COLOR2)
371 #define BUFFER_BIT_COLOR3 (1 << BUFFER_COLOR3)
372 #define BUFFER_BIT_COLOR4 (1 << BUFFER_COLOR4)
373 #define BUFFER_BIT_COLOR5 (1 << BUFFER_COLOR5)
374 #define BUFFER_BIT_COLOR6 (1 << BUFFER_COLOR6)
375 #define BUFFER_BIT_COLOR7 (1 << BUFFER_COLOR7)
378 * Mask of all the color buffer bits (but not accum).
380 #define BUFFER_BITS_COLOR (BUFFER_BIT_FRONT_LEFT | \
381 BUFFER_BIT_BACK_LEFT | \
382 BUFFER_BIT_FRONT_RIGHT | \
383 BUFFER_BIT_BACK_RIGHT | \
385 BUFFER_BIT_COLOR0 | \
386 BUFFER_BIT_COLOR1 | \
387 BUFFER_BIT_COLOR2 | \
388 BUFFER_BIT_COLOR3 | \
389 BUFFER_BIT_COLOR4 | \
390 BUFFER_BIT_COLOR5 | \
391 BUFFER_BIT_COLOR6 | \
396 * Shader stages. Note that these will become 5 with tessellation.
398 * The order must match how shaders are ordered in the pipeline.
399 * The GLSL linker assumes that if i<j, then the j-th shader is
400 * executed later than the i-th shader.
404 MESA_SHADER_VERTEX
= 0,
405 MESA_SHADER_GEOMETRY
= 1,
406 MESA_SHADER_FRAGMENT
= 2,
409 #define MESA_SHADER_STAGES (MESA_SHADER_FRAGMENT + 1)
413 * Framebuffer configuration (aka visual / pixelformat)
414 * Note: some of these fields should be boolean, but it appears that
415 * code in drivers/dri/common/util.c requires int-sized fields.
421 GLboolean colorIndexMode
; /* XXX is this used anywhere? */
422 GLuint doubleBufferMode
;
425 GLboolean haveAccumBuffer
;
426 GLboolean haveDepthBuffer
;
427 GLboolean haveStencilBuffer
;
429 GLint redBits
, greenBits
, blueBits
, alphaBits
; /* bits per comp */
430 GLuint redMask
, greenMask
, blueMask
, alphaMask
;
431 GLint rgbBits
; /* total bits for rgb */
432 GLint indexBits
; /* total bits for colorindex */
434 GLint accumRedBits
, accumGreenBits
, accumBlueBits
, accumAlphaBits
;
442 /* EXT_visual_rating / GLX 1.2 */
445 /* EXT_visual_info / GLX 1.2 */
446 GLint transparentPixel
;
447 /* colors are floats scaled to ints */
448 GLint transparentRed
, transparentGreen
, transparentBlue
, transparentAlpha
;
449 GLint transparentIndex
;
451 /* ARB_multisample / SGIS_multisample */
455 /* SGIX_pbuffer / GLX 1.3 */
456 GLint maxPbufferWidth
;
457 GLint maxPbufferHeight
;
458 GLint maxPbufferPixels
;
459 GLint optimalPbufferWidth
; /* Only for SGIX_pbuffer. */
460 GLint optimalPbufferHeight
; /* Only for SGIX_pbuffer. */
462 /* OML_swap_method */
465 /* EXT_texture_from_pixmap */
466 GLint bindToTextureRgb
;
467 GLint bindToTextureRgba
;
468 GLint bindToMipmapTexture
;
469 GLint bindToTextureTargets
;
472 /* EXT_framebuffer_sRGB */
478 * \name Bit flags used for updating material values.
481 #define MAT_ATTRIB_FRONT_AMBIENT 0
482 #define MAT_ATTRIB_BACK_AMBIENT 1
483 #define MAT_ATTRIB_FRONT_DIFFUSE 2
484 #define MAT_ATTRIB_BACK_DIFFUSE 3
485 #define MAT_ATTRIB_FRONT_SPECULAR 4
486 #define MAT_ATTRIB_BACK_SPECULAR 5
487 #define MAT_ATTRIB_FRONT_EMISSION 6
488 #define MAT_ATTRIB_BACK_EMISSION 7
489 #define MAT_ATTRIB_FRONT_SHININESS 8
490 #define MAT_ATTRIB_BACK_SHININESS 9
491 #define MAT_ATTRIB_FRONT_INDEXES 10
492 #define MAT_ATTRIB_BACK_INDEXES 11
493 #define MAT_ATTRIB_MAX 12
495 #define MAT_ATTRIB_AMBIENT(f) (MAT_ATTRIB_FRONT_AMBIENT+(f))
496 #define MAT_ATTRIB_DIFFUSE(f) (MAT_ATTRIB_FRONT_DIFFUSE+(f))
497 #define MAT_ATTRIB_SPECULAR(f) (MAT_ATTRIB_FRONT_SPECULAR+(f))
498 #define MAT_ATTRIB_EMISSION(f) (MAT_ATTRIB_FRONT_EMISSION+(f))
499 #define MAT_ATTRIB_SHININESS(f)(MAT_ATTRIB_FRONT_SHININESS+(f))
500 #define MAT_ATTRIB_INDEXES(f) (MAT_ATTRIB_FRONT_INDEXES+(f))
502 #define MAT_INDEX_AMBIENT 0
503 #define MAT_INDEX_DIFFUSE 1
504 #define MAT_INDEX_SPECULAR 2
506 #define MAT_BIT_FRONT_AMBIENT (1<<MAT_ATTRIB_FRONT_AMBIENT)
507 #define MAT_BIT_BACK_AMBIENT (1<<MAT_ATTRIB_BACK_AMBIENT)
508 #define MAT_BIT_FRONT_DIFFUSE (1<<MAT_ATTRIB_FRONT_DIFFUSE)
509 #define MAT_BIT_BACK_DIFFUSE (1<<MAT_ATTRIB_BACK_DIFFUSE)
510 #define MAT_BIT_FRONT_SPECULAR (1<<MAT_ATTRIB_FRONT_SPECULAR)
511 #define MAT_BIT_BACK_SPECULAR (1<<MAT_ATTRIB_BACK_SPECULAR)
512 #define MAT_BIT_FRONT_EMISSION (1<<MAT_ATTRIB_FRONT_EMISSION)
513 #define MAT_BIT_BACK_EMISSION (1<<MAT_ATTRIB_BACK_EMISSION)
514 #define MAT_BIT_FRONT_SHININESS (1<<MAT_ATTRIB_FRONT_SHININESS)
515 #define MAT_BIT_BACK_SHININESS (1<<MAT_ATTRIB_BACK_SHININESS)
516 #define MAT_BIT_FRONT_INDEXES (1<<MAT_ATTRIB_FRONT_INDEXES)
517 #define MAT_BIT_BACK_INDEXES (1<<MAT_ATTRIB_BACK_INDEXES)
520 #define FRONT_MATERIAL_BITS (MAT_BIT_FRONT_EMISSION | \
521 MAT_BIT_FRONT_AMBIENT | \
522 MAT_BIT_FRONT_DIFFUSE | \
523 MAT_BIT_FRONT_SPECULAR | \
524 MAT_BIT_FRONT_SHININESS | \
525 MAT_BIT_FRONT_INDEXES)
527 #define BACK_MATERIAL_BITS (MAT_BIT_BACK_EMISSION | \
528 MAT_BIT_BACK_AMBIENT | \
529 MAT_BIT_BACK_DIFFUSE | \
530 MAT_BIT_BACK_SPECULAR | \
531 MAT_BIT_BACK_SHININESS | \
532 MAT_BIT_BACK_INDEXES)
534 #define ALL_MATERIAL_BITS (FRONT_MATERIAL_BITS | BACK_MATERIAL_BITS)
543 GLfloat Attrib
[MAT_ATTRIB_MAX
][4];
551 #define LIGHT_SPOT 0x1
552 #define LIGHT_LOCAL_VIEWER 0x2
553 #define LIGHT_POSITIONAL 0x4
554 #define LIGHT_NEED_VERTICES (LIGHT_POSITIONAL|LIGHT_LOCAL_VIEWER)
559 * Light source state.
563 struct gl_light
*next
; /**< double linked list with sentinel */
564 struct gl_light
*prev
;
566 GLfloat Ambient
[4]; /**< ambient color */
567 GLfloat Diffuse
[4]; /**< diffuse color */
568 GLfloat Specular
[4]; /**< specular color */
569 GLfloat EyePosition
[4]; /**< position in eye coordinates */
570 GLfloat SpotDirection
[4]; /**< spotlight direction in eye coordinates */
571 GLfloat SpotExponent
;
572 GLfloat SpotCutoff
; /**< in degrees */
573 GLfloat _CosCutoff
; /**< = MAX(0, cos(SpotCutoff)) */
574 GLfloat ConstantAttenuation
;
575 GLfloat LinearAttenuation
;
576 GLfloat QuadraticAttenuation
;
577 GLboolean Enabled
; /**< On/off flag */
580 * \name Derived fields
583 GLbitfield _Flags
; /**< Mask of LIGHT_x bits defined above */
585 GLfloat _Position
[4]; /**< position in eye/obj coordinates */
586 GLfloat _VP_inf_norm
[3]; /**< Norm direction to infinite light */
587 GLfloat _h_inf_norm
[3]; /**< Norm( _VP_inf_norm + <0,0,1> ) */
588 GLfloat _NormSpotDirection
[4]; /**< normalized spotlight direction */
589 GLfloat _VP_inf_spot_attenuation
;
591 GLfloat _MatAmbient
[2][3]; /**< material ambient * light ambient */
592 GLfloat _MatDiffuse
[2][3]; /**< material diffuse * light diffuse */
593 GLfloat _MatSpecular
[2][3]; /**< material spec * light specular */
603 GLfloat Ambient
[4]; /**< ambient color */
604 GLboolean LocalViewer
; /**< Local (or infinite) view point? */
605 GLboolean TwoSide
; /**< Two (or one) sided lighting? */
606 GLenum ColorControl
; /**< either GL_SINGLE_COLOR
607 * or GL_SEPARATE_SPECULAR_COLOR */
612 * Accumulation buffer attribute group (GL_ACCUM_BUFFER_BIT)
614 struct gl_accum_attrib
616 GLfloat ClearColor
[4]; /**< Accumulation buffer clear color */
621 * Used for storing clear color, texture border color, etc.
622 * The float values are typically unclamped.
633 * Color buffer attribute group (GL_COLOR_BUFFER_BIT).
635 struct gl_colorbuffer_attrib
637 GLuint ClearIndex
; /**< Index for glClear */
638 union gl_color_union ClearColor
; /**< Color for glClear, unclamped */
639 GLuint IndexMask
; /**< Color index write mask */
640 GLubyte ColorMask
[MAX_DRAW_BUFFERS
][4]; /**< Each flag is 0xff or 0x0 */
642 GLenum DrawBuffer
[MAX_DRAW_BUFFERS
]; /**< Which buffer to draw into */
645 * \name alpha testing
648 GLboolean AlphaEnabled
; /**< Alpha test enabled flag */
649 GLenum AlphaFunc
; /**< Alpha test function */
650 GLfloat AlphaRefUnclamped
;
651 GLclampf AlphaRef
; /**< Alpha reference value */
658 GLbitfield BlendEnabled
; /**< Per-buffer blend enable flags */
660 /* NOTE: this does _not_ depend on fragment clamping or any other clamping
661 * control, only on the fixed-pointness of the render target.
662 * The query does however depend on fragment color clamping.
664 GLfloat BlendColorUnclamped
[4]; /**< Blending color */
665 GLfloat BlendColor
[4]; /**< Blending color */
669 GLenum SrcRGB
; /**< RGB blend source term */
670 GLenum DstRGB
; /**< RGB blend dest term */
671 GLenum SrcA
; /**< Alpha blend source term */
672 GLenum DstA
; /**< Alpha blend dest term */
673 GLenum EquationRGB
; /**< GL_ADD, GL_SUBTRACT, etc. */
674 GLenum EquationA
; /**< GL_ADD, GL_SUBTRACT, etc. */
676 * Set if any blend factor uses SRC1. Computed at the time blend factors
679 GLboolean _UsesDualSrc
;
680 } Blend
[MAX_DRAW_BUFFERS
];
681 /** Are the blend func terms currently different for each buffer/target? */
682 GLboolean _BlendFuncPerBuffer
;
683 /** Are the blend equations currently different for each buffer/target? */
684 GLboolean _BlendEquationPerBuffer
;
691 GLenum LogicOp
; /**< Logic operator */
692 GLboolean IndexLogicOpEnabled
; /**< Color index logic op enabled flag */
693 GLboolean ColorLogicOpEnabled
; /**< RGBA logic op enabled flag */
696 GLboolean DitherFlag
; /**< Dither enable flag */
698 GLenum ClampFragmentColor
; /**< GL_TRUE, GL_FALSE or GL_FIXED_ONLY_ARB */
699 GLboolean _ClampFragmentColor
; /** < with GL_FIXED_ONLY_ARB resolved */
700 GLenum ClampReadColor
; /**< GL_TRUE, GL_FALSE or GL_FIXED_ONLY_ARB */
702 GLboolean sRGBEnabled
; /**< Framebuffer sRGB blending/updating requested */
707 * Current attribute group (GL_CURRENT_BIT).
709 struct gl_current_attrib
712 * \name Current vertex attributes.
713 * \note Values are valid only after FLUSH_VERTICES has been called.
714 * \note Index and Edgeflag current values are stored as floats in the
715 * SIX and SEVEN attribute slots.
717 GLfloat Attrib
[VERT_ATTRIB_MAX
][4]; /**< Position, color, texcoords, etc */
720 * \name Current raster position attributes (always valid).
721 * \note This set of attributes is very similar to the SWvertex struct.
724 GLfloat RasterPos
[4];
725 GLfloat RasterDistance
;
726 GLfloat RasterColor
[4];
727 GLfloat RasterSecondaryColor
[4];
728 GLfloat RasterTexCoords
[MAX_TEXTURE_COORD_UNITS
][4];
729 GLboolean RasterPosValid
;
735 * Depth buffer attribute group (GL_DEPTH_BUFFER_BIT).
737 struct gl_depthbuffer_attrib
739 GLenum Func
; /**< Function for depth buffer compare */
740 GLclampd Clear
; /**< Value to clear depth buffer to */
741 GLboolean Test
; /**< Depth buffering enabled flag */
742 GLboolean Mask
; /**< Depth buffer writable? */
743 GLboolean BoundsTest
; /**< GL_EXT_depth_bounds_test */
744 GLfloat BoundsMin
, BoundsMax
;/**< GL_EXT_depth_bounds_test */
749 * Evaluator attribute group (GL_EVAL_BIT).
751 struct gl_eval_attrib
757 GLboolean Map1Color4
;
759 GLboolean Map1Normal
;
760 GLboolean Map1TextureCoord1
;
761 GLboolean Map1TextureCoord2
;
762 GLboolean Map1TextureCoord3
;
763 GLboolean Map1TextureCoord4
;
764 GLboolean Map1Vertex3
;
765 GLboolean Map1Vertex4
;
766 GLboolean Map2Color4
;
768 GLboolean Map2Normal
;
769 GLboolean Map2TextureCoord1
;
770 GLboolean Map2TextureCoord2
;
771 GLboolean Map2TextureCoord3
;
772 GLboolean Map2TextureCoord4
;
773 GLboolean Map2Vertex3
;
774 GLboolean Map2Vertex4
;
775 GLboolean AutoNormal
;
779 * \name Map Grid endpoints and divisions and calculated du values
783 GLfloat MapGrid1u1
, MapGrid1u2
, MapGrid1du
;
784 GLint MapGrid2un
, MapGrid2vn
;
785 GLfloat MapGrid2u1
, MapGrid2u2
, MapGrid2du
;
786 GLfloat MapGrid2v1
, MapGrid2v2
, MapGrid2dv
;
792 * Fog attribute group (GL_FOG_BIT).
796 GLboolean Enabled
; /**< Fog enabled flag */
797 GLfloat ColorUnclamped
[4]; /**< Fog color */
798 GLfloat Color
[4]; /**< Fog color */
799 GLfloat Density
; /**< Density >= 0.0 */
800 GLfloat Start
; /**< Start distance in eye coords */
801 GLfloat End
; /**< End distance in eye coords */
802 GLfloat Index
; /**< Fog index */
803 GLenum Mode
; /**< Fog mode */
804 GLboolean ColorSumEnabled
;
805 GLenum FogCoordinateSource
; /**< GL_EXT_fog_coord */
806 GLfloat _Scale
; /**< (End == Start) ? 1.0 : 1.0 / (End - Start) */
807 GLenum FogDistanceMode
; /**< GL_NV_fog_distance */
812 * Hint attribute group (GL_HINT_BIT).
814 * Values are always one of GL_FASTEST, GL_NICEST, or GL_DONT_CARE.
816 struct gl_hint_attrib
818 GLenum PerspectiveCorrection
;
821 GLenum PolygonSmooth
;
823 GLenum TextureCompression
; /**< GL_ARB_texture_compression */
824 GLenum GenerateMipmap
; /**< GL_SGIS_generate_mipmap */
825 GLenum FragmentShaderDerivative
; /**< GL_ARB_fragment_shader */
830 * Lighting attribute group (GL_LIGHT_BIT).
832 struct gl_light_attrib
834 struct gl_light Light
[MAX_LIGHTS
]; /**< Array of light sources */
835 struct gl_lightmodel Model
; /**< Lighting model */
838 * Front and back material values.
839 * Note: must call FLUSH_VERTICES() before using.
841 struct gl_material Material
;
843 GLboolean Enabled
; /**< Lighting enabled flag */
844 GLenum ShadeModel
; /**< GL_FLAT or GL_SMOOTH */
845 GLenum ProvokingVertex
; /**< GL_EXT_provoking_vertex */
846 GLenum ColorMaterialFace
; /**< GL_FRONT, BACK or FRONT_AND_BACK */
847 GLenum ColorMaterialMode
; /**< GL_AMBIENT, GL_DIFFUSE, etc */
848 GLbitfield _ColorMaterialBitmask
; /**< bitmask formed from Face and Mode */
849 GLboolean ColorMaterialEnabled
;
850 GLenum ClampVertexColor
; /**< GL_TRUE, GL_FALSE, GL_FIXED_ONLY */
851 GLboolean _ClampVertexColor
;
853 struct gl_light EnabledList
; /**< List sentinel */
856 * Derived state for optimizations:
859 GLboolean _NeedEyeCoords
;
860 GLboolean _NeedVertices
; /**< Use fast shader? */
861 GLfloat _BaseColor
[2][3];
867 * Line attribute group (GL_LINE_BIT).
869 struct gl_line_attrib
871 GLboolean SmoothFlag
; /**< GL_LINE_SMOOTH enabled? */
872 GLboolean StippleFlag
; /**< GL_LINE_STIPPLE enabled? */
873 GLushort StipplePattern
; /**< Stipple pattern */
874 GLint StippleFactor
; /**< Stipple repeat factor */
875 GLfloat Width
; /**< Line width */
880 * Display list attribute group (GL_LIST_BIT).
882 struct gl_list_attrib
889 * Multisample attribute group (GL_MULTISAMPLE_BIT).
891 struct gl_multisample_attrib
894 GLboolean _Enabled
; /**< true if Enabled and multisample buffer */
895 GLboolean SampleAlphaToCoverage
;
896 GLboolean SampleAlphaToOne
;
897 GLboolean SampleCoverage
;
898 GLfloat SampleCoverageValue
;
899 GLboolean SampleCoverageInvert
;
900 GLboolean SampleShading
;
901 GLfloat MinSampleShadingValue
;
903 /* ARB_texture_multisample / GL3.2 additions */
904 GLboolean SampleMask
;
905 /** The GL spec defines this as an array but >32x MSAA is madness */
906 GLbitfield SampleMaskValue
;
911 * A pixelmap (see glPixelMap)
916 GLfloat Map
[MAX_PIXEL_MAP_TABLE
];
921 * Collection of all pixelmaps
925 struct gl_pixelmap RtoR
; /**< i.e. GL_PIXEL_MAP_R_TO_R */
926 struct gl_pixelmap GtoG
;
927 struct gl_pixelmap BtoB
;
928 struct gl_pixelmap AtoA
;
929 struct gl_pixelmap ItoR
;
930 struct gl_pixelmap ItoG
;
931 struct gl_pixelmap ItoB
;
932 struct gl_pixelmap ItoA
;
933 struct gl_pixelmap ItoI
;
934 struct gl_pixelmap StoS
;
939 * Pixel attribute group (GL_PIXEL_MODE_BIT).
941 struct gl_pixel_attrib
943 GLenum ReadBuffer
; /**< source buffer for glRead/CopyPixels() */
945 /*--- Begin Pixel Transfer State ---*/
946 /* Fields are in the order in which they're applied... */
948 /** Scale & Bias (index shift, offset) */
950 GLfloat RedBias
, RedScale
;
951 GLfloat GreenBias
, GreenScale
;
952 GLfloat BlueBias
, BlueScale
;
953 GLfloat AlphaBias
, AlphaScale
;
954 GLfloat DepthBias
, DepthScale
;
955 GLint IndexShift
, IndexOffset
;
959 /* Note: actual pixel maps are not part of this attrib group */
960 GLboolean MapColorFlag
;
961 GLboolean MapStencilFlag
;
963 /*--- End Pixel Transfer State ---*/
966 GLfloat ZoomX
, ZoomY
;
971 * Point attribute group (GL_POINT_BIT).
973 struct gl_point_attrib
975 GLboolean SmoothFlag
; /**< True if GL_POINT_SMOOTH is enabled */
976 GLfloat Size
; /**< User-specified point size */
977 GLfloat Params
[3]; /**< GL_EXT_point_parameters */
978 GLfloat MinSize
, MaxSize
; /**< GL_EXT_point_parameters */
979 GLfloat Threshold
; /**< GL_EXT_point_parameters */
980 GLboolean _Attenuated
; /**< True if Params != [1, 0, 0] */
981 GLboolean PointSprite
; /**< GL_NV/ARB_point_sprite */
982 GLboolean CoordReplace
[MAX_TEXTURE_COORD_UNITS
]; /**< GL_ARB_point_sprite*/
983 GLenum SpriteRMode
; /**< GL_NV_point_sprite (only!) */
984 GLenum SpriteOrigin
; /**< GL_ARB_point_sprite */
989 * Polygon attribute group (GL_POLYGON_BIT).
991 struct gl_polygon_attrib
993 GLenum FrontFace
; /**< Either GL_CW or GL_CCW */
994 GLenum FrontMode
; /**< Either GL_POINT, GL_LINE or GL_FILL */
995 GLenum BackMode
; /**< Either GL_POINT, GL_LINE or GL_FILL */
996 GLboolean _FrontBit
; /**< 0=GL_CCW, 1=GL_CW */
997 GLboolean CullFlag
; /**< Culling on/off flag */
998 GLboolean SmoothFlag
; /**< True if GL_POLYGON_SMOOTH is enabled */
999 GLboolean StippleFlag
; /**< True if GL_POLYGON_STIPPLE is enabled */
1000 GLenum CullFaceMode
; /**< Culling mode GL_FRONT or GL_BACK */
1001 GLfloat OffsetFactor
; /**< Polygon offset factor, from user */
1002 GLfloat OffsetUnits
; /**< Polygon offset units, from user */
1003 GLboolean OffsetPoint
; /**< Offset in GL_POINT mode */
1004 GLboolean OffsetLine
; /**< Offset in GL_LINE mode */
1005 GLboolean OffsetFill
; /**< Offset in GL_FILL mode */
1010 * Scissor attributes (GL_SCISSOR_BIT).
1012 struct gl_scissor_attrib
1014 GLboolean Enabled
; /**< Scissor test enabled? */
1015 GLint X
, Y
; /**< Lower left corner of box */
1016 GLsizei Width
, Height
; /**< Size of box */
1021 * Stencil attribute group (GL_STENCIL_BUFFER_BIT).
1023 * Three sets of stencil data are tracked so that OpenGL 2.0,
1024 * GL_EXT_stencil_two_side, and GL_ATI_separate_stencil can all be supported
1025 * simultaneously. In each of the stencil state arrays, element 0 corresponds
1026 * to GL_FRONT. Element 1 corresponds to the OpenGL 2.0 /
1027 * GL_ATI_separate_stencil GL_BACK state. Element 2 corresponds to the
1028 * GL_EXT_stencil_two_side GL_BACK state.
1030 * The derived value \c _BackFace is either 1 or 2 depending on whether or
1031 * not GL_STENCIL_TEST_TWO_SIDE_EXT is enabled.
1033 * The derived value \c _TestTwoSide is set when the front-face and back-face
1034 * stencil state are different.
1036 struct gl_stencil_attrib
1038 GLboolean Enabled
; /**< Enabled flag */
1039 GLboolean TestTwoSide
; /**< GL_EXT_stencil_two_side */
1040 GLubyte ActiveFace
; /**< GL_EXT_stencil_two_side (0 or 2) */
1041 GLboolean _Enabled
; /**< Enabled and stencil buffer present */
1042 GLboolean _WriteEnabled
; /**< _Enabled and non-zero writemasks */
1043 GLboolean _TestTwoSide
;
1044 GLubyte _BackFace
; /**< Current back stencil state (1 or 2) */
1045 GLenum Function
[3]; /**< Stencil function */
1046 GLenum FailFunc
[3]; /**< Fail function */
1047 GLenum ZPassFunc
[3]; /**< Depth buffer pass function */
1048 GLenum ZFailFunc
[3]; /**< Depth buffer fail function */
1049 GLint Ref
[3]; /**< Reference value */
1050 GLuint ValueMask
[3]; /**< Value mask */
1051 GLuint WriteMask
[3]; /**< Write mask */
1052 GLuint Clear
; /**< Clear value */
1057 * An index for each type of texture object. These correspond to the GL
1058 * texture target enums, such as GL_TEXTURE_2D, GL_TEXTURE_CUBE_MAP, etc.
1059 * Note: the order is from highest priority to lowest priority.
1063 TEXTURE_2D_MULTISAMPLE_INDEX
,
1064 TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX
,
1065 TEXTURE_CUBE_ARRAY_INDEX
,
1066 TEXTURE_BUFFER_INDEX
,
1067 TEXTURE_2D_ARRAY_INDEX
,
1068 TEXTURE_1D_ARRAY_INDEX
,
1069 TEXTURE_EXTERNAL_INDEX
,
1080 * Bit flags for each type of texture object
1081 * Used for Texture.Unit[]._ReallyEnabled flags.
1084 #define TEXTURE_2D_MULTISAMPLE_BIT (1 << TEXTURE_2D_MULTISAMPLE_INDEX)
1085 #define TEXTURE_2D_MULTISAMPLE_ARRAY_BIT (1 << TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX)
1086 #define TEXTURE_CUBE_ARRAY_BIT (1 << TEXTURE_CUBE_ARRAY_INDEX)
1087 #define TEXTURE_BUFFER_BIT (1 << TEXTURE_BUFFER_INDEX)
1088 #define TEXTURE_2D_ARRAY_BIT (1 << TEXTURE_2D_ARRAY_INDEX)
1089 #define TEXTURE_1D_ARRAY_BIT (1 << TEXTURE_1D_ARRAY_INDEX)
1090 #define TEXTURE_EXTERNAL_BIT (1 << TEXTURE_EXTERNAL_INDEX)
1091 #define TEXTURE_CUBE_BIT (1 << TEXTURE_CUBE_INDEX)
1092 #define TEXTURE_3D_BIT (1 << TEXTURE_3D_INDEX)
1093 #define TEXTURE_RECT_BIT (1 << TEXTURE_RECT_INDEX)
1094 #define TEXTURE_2D_BIT (1 << TEXTURE_2D_INDEX)
1095 #define TEXTURE_1D_BIT (1 << TEXTURE_1D_INDEX)
1100 * Texture image state. Drivers will typically create a subclass of this
1101 * with extra fields for memory buffers, etc.
1103 struct gl_texture_image
1105 GLint InternalFormat
; /**< Internal format as given by the user */
1106 GLenum _BaseFormat
; /**< Either GL_RGB, GL_RGBA, GL_ALPHA,
1107 * GL_LUMINANCE, GL_LUMINANCE_ALPHA,
1108 * GL_INTENSITY, GL_DEPTH_COMPONENT or
1109 * GL_DEPTH_STENCIL_EXT only. Used for
1110 * choosing TexEnv arithmetic.
1112 gl_format TexFormat
; /**< The actual texture memory format */
1114 GLuint Border
; /**< 0 or 1 */
1115 GLuint Width
; /**< = 2^WidthLog2 + 2*Border */
1116 GLuint Height
; /**< = 2^HeightLog2 + 2*Border */
1117 GLuint Depth
; /**< = 2^DepthLog2 + 2*Border */
1118 GLuint Width2
; /**< = Width - 2*Border */
1119 GLuint Height2
; /**< = Height - 2*Border */
1120 GLuint Depth2
; /**< = Depth - 2*Border */
1121 GLuint WidthLog2
; /**< = log2(Width2) */
1122 GLuint HeightLog2
; /**< = log2(Height2) */
1123 GLuint DepthLog2
; /**< = log2(Depth2) */
1124 GLuint MaxNumLevels
; /**< = maximum possible number of mipmap
1125 levels, computed from the dimensions */
1127 struct gl_texture_object
*TexObject
; /**< Pointer back to parent object */
1128 GLuint Level
; /**< Which mipmap level am I? */
1129 /** Cube map face: index into gl_texture_object::Image[] array */
1132 /** GL_ARB_texture_multisample */
1133 GLuint NumSamples
; /**< Sample count, or 0 for non-multisample */
1134 GLboolean FixedSampleLocations
; /**< Same sample locations for all pixels? */
1139 * Indexes for cube map faces.
1154 * Sampler object state. These objects are new with GL_ARB_sampler_objects
1155 * and OpenGL 3.3. Legacy texture objects also contain a sampler object.
1157 struct gl_sampler_object
1161 GLchar
*Label
; /**< GL_KHR_debug */
1163 GLenum WrapS
; /**< S-axis texture image wrap mode */
1164 GLenum WrapT
; /**< T-axis texture image wrap mode */
1165 GLenum WrapR
; /**< R-axis texture image wrap mode */
1166 GLenum MinFilter
; /**< minification filter */
1167 GLenum MagFilter
; /**< magnification filter */
1168 union gl_color_union BorderColor
; /**< Interpreted according to texture format */
1169 GLfloat MinLod
; /**< min lambda, OpenGL 1.2 */
1170 GLfloat MaxLod
; /**< max lambda, OpenGL 1.2 */
1171 GLfloat LodBias
; /**< OpenGL 1.4 */
1172 GLfloat MaxAnisotropy
; /**< GL_EXT_texture_filter_anisotropic */
1173 GLenum CompareMode
; /**< GL_ARB_shadow */
1174 GLenum CompareFunc
; /**< GL_ARB_shadow */
1175 GLenum sRGBDecode
; /**< GL_DECODE_EXT or GL_SKIP_DECODE_EXT */
1176 GLboolean CubeMapSeamless
; /**< GL_AMD_seamless_cubemap_per_texture */
1181 * Texture object state. Contains the array of mipmap images, border color,
1182 * wrap modes, filter modes, and shadow/texcompare state.
1184 struct gl_texture_object
1186 _glthread_Mutex Mutex
; /**< for thread safety */
1187 GLint RefCount
; /**< reference count */
1188 GLuint Name
; /**< the user-visible texture object ID */
1189 GLchar
*Label
; /**< GL_KHR_debug */
1190 GLenum Target
; /**< GL_TEXTURE_1D, GL_TEXTURE_2D, etc. */
1192 struct gl_sampler_object Sampler
;
1194 GLenum DepthMode
; /**< GL_ARB_depth_texture */
1196 GLfloat Priority
; /**< in [0,1] */
1197 GLint BaseLevel
; /**< min mipmap level, OpenGL 1.2 */
1198 GLint MaxLevel
; /**< max mipmap level, OpenGL 1.2 */
1199 GLint ImmutableLevels
; /**< ES 3.0 / ARB_texture_view */
1200 GLint _MaxLevel
; /**< actual max mipmap level (q in the spec) */
1201 GLfloat _MaxLambda
; /**< = _MaxLevel - BaseLevel (q - p in spec) */
1202 GLint CropRect
[4]; /**< GL_OES_draw_texture */
1203 GLenum Swizzle
[4]; /**< GL_EXT_texture_swizzle */
1204 GLuint _Swizzle
; /**< same as Swizzle, but SWIZZLE_* format */
1205 GLboolean GenerateMipmap
; /**< GL_SGIS_generate_mipmap */
1206 GLboolean _BaseComplete
; /**< Is the base texture level valid? */
1207 GLboolean _MipmapComplete
; /**< Is the whole mipmap valid? */
1208 GLboolean _IsIntegerFormat
; /**< Does the texture store integer values? */
1209 GLboolean _RenderToTexture
; /**< Any rendering to this texture? */
1210 GLboolean Purgeable
; /**< Is the buffer purgeable under memory
1212 GLboolean Immutable
; /**< GL_ARB_texture_storage */
1214 GLuint MinLevel
; /**< GL_ARB_texture_view */
1215 GLuint MinLayer
; /**< GL_ARB_texture_view */
1216 GLuint NumLevels
; /**< GL_ARB_texture_view */
1217 GLuint NumLayers
; /**< GL_ARB_texture_view */
1219 /** Actual texture images, indexed by [cube face] and [mipmap level] */
1220 struct gl_texture_image
*Image
[MAX_FACES
][MAX_TEXTURE_LEVELS
];
1222 /** GL_ARB_texture_buffer_object */
1223 struct gl_buffer_object
*BufferObject
;
1224 GLenum BufferObjectFormat
;
1225 /** Equivalent Mesa format for BufferObjectFormat. */
1226 gl_format _BufferObjectFormat
;
1227 /** GL_ARB_texture_buffer_range */
1228 GLintptr BufferOffset
;
1229 GLsizeiptr BufferSize
; /**< if this is -1, use BufferObject->Size instead */
1231 /** GL_OES_EGL_image_external */
1232 GLint RequiredTextureImageUnits
;
1236 /** Up to four combiner sources are possible with GL_NV_texture_env_combine4 */
1237 #define MAX_COMBINER_TERMS 4
1241 * Texture combine environment state.
1243 struct gl_tex_env_combine_state
1245 GLenum ModeRGB
; /**< GL_REPLACE, GL_DECAL, GL_ADD, etc. */
1246 GLenum ModeA
; /**< GL_REPLACE, GL_DECAL, GL_ADD, etc. */
1247 /** Source terms: GL_PRIMARY_COLOR, GL_TEXTURE, etc */
1248 GLenum SourceRGB
[MAX_COMBINER_TERMS
];
1249 GLenum SourceA
[MAX_COMBINER_TERMS
];
1250 /** Source operands: GL_SRC_COLOR, GL_ONE_MINUS_SRC_COLOR, etc */
1251 GLenum OperandRGB
[MAX_COMBINER_TERMS
];
1252 GLenum OperandA
[MAX_COMBINER_TERMS
];
1253 GLuint ScaleShiftRGB
; /**< 0, 1 or 2 */
1254 GLuint ScaleShiftA
; /**< 0, 1 or 2 */
1255 GLuint _NumArgsRGB
; /**< Number of inputs used for the RGB combiner */
1256 GLuint _NumArgsA
; /**< Number of inputs used for the A combiner */
1261 * TexGenEnabled flags.
1268 #define STR_BITS (S_BIT | T_BIT | R_BIT)
1273 * Bit flag versions of the corresponding GL_ constants.
1276 #define TEXGEN_SPHERE_MAP 0x1
1277 #define TEXGEN_OBJ_LINEAR 0x2
1278 #define TEXGEN_EYE_LINEAR 0x4
1279 #define TEXGEN_REFLECTION_MAP_NV 0x8
1280 #define TEXGEN_NORMAL_MAP_NV 0x10
1282 #define TEXGEN_NEED_NORMALS (TEXGEN_SPHERE_MAP | \
1283 TEXGEN_REFLECTION_MAP_NV | \
1284 TEXGEN_NORMAL_MAP_NV)
1285 #define TEXGEN_NEED_EYE_COORD (TEXGEN_SPHERE_MAP | \
1286 TEXGEN_REFLECTION_MAP_NV | \
1287 TEXGEN_NORMAL_MAP_NV | \
1293 /** Tex-gen enabled for texture unit? */
1294 #define ENABLE_TEXGEN(unit) (1 << (unit))
1296 /** Non-identity texture matrix for texture unit? */
1297 #define ENABLE_TEXMAT(unit) (1 << (unit))
1301 * Texture coord generation state.
1305 GLenum Mode
; /**< GL_EYE_LINEAR, GL_SPHERE_MAP, etc */
1306 GLbitfield _ModeBit
; /**< TEXGEN_x bit corresponding to Mode */
1307 GLfloat ObjectPlane
[4];
1308 GLfloat EyePlane
[4];
1313 * Texture unit state. Contains enable flags, texture environment/function/
1314 * combiners, texgen state, and pointers to current texture objects.
1316 struct gl_texture_unit
1318 GLbitfield Enabled
; /**< bitmask of TEXTURE_*_BIT flags */
1319 GLbitfield _ReallyEnabled
; /**< 0 or exactly one of TEXTURE_*_BIT flags */
1321 GLenum EnvMode
; /**< GL_MODULATE, GL_DECAL, GL_BLEND, etc. */
1322 GLclampf EnvColor
[4];
1323 GLfloat EnvColorUnclamped
[4];
1325 struct gl_texgen GenS
;
1326 struct gl_texgen GenT
;
1327 struct gl_texgen GenR
;
1328 struct gl_texgen GenQ
;
1329 GLbitfield TexGenEnabled
; /**< Bitwise-OR of [STRQ]_BIT values */
1330 GLbitfield _GenFlags
; /**< Bitwise-OR of Gen[STRQ]._ModeBit */
1332 GLfloat LodBias
; /**< for biasing mipmap levels */
1334 GLfloat RotMatrix
[4]; /* 2x2 matrix */
1336 /** Current sampler object (GL_ARB_sampler_objects) */
1337 struct gl_sampler_object
*Sampler
;
1340 * \name GL_EXT_texture_env_combine
1342 struct gl_tex_env_combine_state Combine
;
1345 * Derived state based on \c EnvMode and the \c BaseFormat of the
1346 * currently enabled texture.
1348 struct gl_tex_env_combine_state _EnvMode
;
1351 * Currently enabled combiner state. This will point to either
1352 * \c Combine or \c _EnvMode.
1354 struct gl_tex_env_combine_state
*_CurrentCombine
;
1356 /** Current texture object pointers */
1357 struct gl_texture_object
*CurrentTex
[NUM_TEXTURE_TARGETS
];
1359 /** Points to highest priority, complete and enabled texture object */
1360 struct gl_texture_object
*_Current
;
1365 * Texture attribute group (GL_TEXTURE_BIT).
1367 struct gl_texture_attrib
1369 GLuint CurrentUnit
; /**< GL_ACTIVE_TEXTURE */
1370 struct gl_texture_unit Unit
[MAX_COMBINED_TEXTURE_IMAGE_UNITS
];
1372 struct gl_texture_object
*ProxyTex
[NUM_TEXTURE_TARGETS
];
1374 /** GL_ARB_texture_buffer_object */
1375 struct gl_buffer_object
*BufferObject
;
1377 /** GL_ARB_seamless_cubemap */
1378 GLboolean CubeMapSeamless
;
1380 /** Texture units/samplers used by vertex or fragment texturing */
1381 GLbitfield _EnabledUnits
;
1383 /** Texture coord units/sets used for fragment texturing */
1384 GLbitfield _EnabledCoordUnits
;
1386 /** Texture coord units that have texgen enabled */
1387 GLbitfield _TexGenEnabled
;
1389 /** Texture coord units that have non-identity matrices */
1390 GLbitfield _TexMatEnabled
;
1392 /** Bitwise-OR of all Texture.Unit[i]._GenFlags */
1393 GLbitfield _GenFlags
;
1398 * Data structure representing a single clip plane (e.g. one of the elements
1399 * of the ctx->Transform.EyeUserPlane or ctx->Transform._ClipUserPlane array).
1401 typedef GLfloat gl_clip_plane
[4];
1405 * Transformation attribute group (GL_TRANSFORM_BIT).
1407 struct gl_transform_attrib
1409 GLenum MatrixMode
; /**< Matrix mode */
1410 gl_clip_plane EyeUserPlane
[MAX_CLIP_PLANES
]; /**< User clip planes */
1411 gl_clip_plane _ClipUserPlane
[MAX_CLIP_PLANES
]; /**< derived */
1412 GLbitfield ClipPlanesEnabled
; /**< on/off bitmask */
1413 GLboolean Normalize
; /**< Normalize all normals? */
1414 GLboolean RescaleNormals
; /**< GL_EXT_rescale_normal */
1415 GLboolean RasterPositionUnclipped
; /**< GL_IBM_rasterpos_clip */
1416 GLboolean DepthClamp
; /**< GL_ARB_depth_clamp */
1418 GLfloat CullEyePos
[4];
1419 GLfloat CullObjPos
[4];
1424 * Viewport attribute group (GL_VIEWPORT_BIT).
1426 struct gl_viewport_attrib
1428 GLint X
, Y
; /**< position */
1429 GLsizei Width
, Height
; /**< size */
1430 GLfloat Near
, Far
; /**< Depth buffer range */
1431 GLmatrix _WindowMap
; /**< Mapping transformation as a matrix. */
1436 * GL_ARB_vertex/pixel_buffer_object buffer object
1438 struct gl_buffer_object
1440 _glthread_Mutex Mutex
;
1443 GLchar
*Label
; /**< GL_KHR_debug */
1444 GLenum Usage
; /**< GL_STREAM_DRAW_ARB, GL_STREAM_READ_ARB, etc. */
1445 GLsizeiptrARB Size
; /**< Size of buffer storage in bytes */
1446 GLubyte
*Data
; /**< Location of storage either in RAM or VRAM. */
1447 /** Fields describing a mapped buffer */
1449 GLbitfield AccessFlags
; /**< Mask of GL_MAP_x_BIT flags */
1450 GLvoid
*Pointer
; /**< User-space address of mapping */
1451 GLintptr Offset
; /**< Mapped offset */
1452 GLsizeiptr Length
; /**< Mapped length */
1454 GLboolean DeletePending
; /**< true if buffer object is removed from the hash */
1455 GLboolean Written
; /**< Ever written to? (for debugging) */
1456 GLboolean Purgeable
; /**< Is the buffer purgeable under memory pressure? */
1461 * Client pixel packing/unpacking attributes
1463 struct gl_pixelstore_attrib
1471 GLboolean SwapBytes
;
1473 GLboolean Invert
; /**< GL_MESA_pack_invert */
1474 struct gl_buffer_object
*BufferObj
; /**< GL_ARB_pixel_buffer_object */
1479 * Client vertex array attributes
1481 struct gl_client_array
1483 GLint Size
; /**< components per element (1,2,3,4) */
1484 GLenum Type
; /**< datatype: GL_FLOAT, GL_INT, etc */
1485 GLenum Format
; /**< default: GL_RGBA, but may be GL_BGRA */
1486 GLsizei Stride
; /**< user-specified stride */
1487 GLsizei StrideB
; /**< actual stride in bytes */
1488 const GLubyte
*Ptr
; /**< Points to array data */
1489 GLboolean Enabled
; /**< Enabled flag is a boolean */
1490 GLboolean Normalized
; /**< GL_ARB_vertex_program */
1491 GLboolean Integer
; /**< Integer-valued? */
1492 GLuint InstanceDivisor
; /**< GL_ARB_instanced_arrays */
1493 GLuint _ElementSize
; /**< size of each element in bytes */
1495 struct gl_buffer_object
*BufferObj
;/**< GL_ARB_vertex_buffer_object */
1496 GLuint _MaxElement
; /**< max element index into array buffer + 1 */
1501 * Vertex attribute array as seen by the client.
1503 * Contains the size, type, format and normalization flag,
1504 * along with the index of a vertex buffer binding point.
1506 * Note that the Stride field corresponds to VERTEX_ATTRIB_ARRAY_STRIDE
1507 * and is only present for backwards compatibility reasons.
1508 * Rendering always uses VERTEX_BINDING_STRIDE.
1509 * The gl*Pointer() functions will set VERTEX_ATTRIB_ARRAY_STRIDE
1510 * and VERTEX_BINDING_STRIDE to the same value, while
1511 * glBindVertexBuffer() will only set VERTEX_BINDING_STRIDE.
1513 struct gl_vertex_attrib_array
1515 GLint Size
; /**< Components per element (1,2,3,4) */
1516 GLenum Type
; /**< Datatype: GL_FLOAT, GL_INT, etc */
1517 GLenum Format
; /**< Default: GL_RGBA, but may be GL_BGRA */
1518 GLsizei Stride
; /**< Stride as specified with gl*Pointer() */
1519 const GLubyte
*Ptr
; /**< Points to client array data. Not used when a VBO is bound */
1520 GLintptr RelativeOffset
; /**< Offset of the first element relative to the binding offset */
1521 GLboolean Enabled
; /**< Whether the array is enabled */
1522 GLboolean Normalized
; /**< Fixed-point values are normalized when converted to floats */
1523 GLboolean Integer
; /**< Fixed-point values are not converted to floats */
1524 GLuint _ElementSize
; /**< Size of each element in bytes */
1525 GLuint VertexBinding
; /**< Vertex buffer binding */
1530 * This describes the buffer object used for a vertex array (or
1531 * multiple vertex arrays). If BufferObj points to the default/null
1532 * buffer object, then the vertex array lives in user memory and not a VBO.
1534 struct gl_vertex_buffer_binding
1536 GLintptr Offset
; /**< User-specified offset */
1537 GLsizei Stride
; /**< User-specified stride */
1538 GLuint InstanceDivisor
; /**< GL_ARB_instanced_arrays */
1539 struct gl_buffer_object
*BufferObj
; /**< GL_ARB_vertex_buffer_object */
1540 GLbitfield64 _BoundArrays
; /**< Arrays bound to this binding point */
1545 * Collection of vertex arrays. Defined by the GL_APPLE_vertex_array_object
1546 * extension, but a nice encapsulation in any case.
1548 struct gl_array_object
1550 /** Name of the array object as received from glGenVertexArrayAPPLE. */
1552 GLchar
*Label
; /**< GL_KHR_debug */
1555 _glthread_Mutex Mutex
;
1558 * Does the VAO use ARB semantics or Apple semantics?
1560 * There are several ways in which ARB_vertex_array_object and
1561 * APPLE_vertex_array_object VAOs have differing semantics. At the very
1564 * - ARB VAOs require that all array data be sourced from vertex buffer
1565 * objects, but Apple VAOs do not.
1567 * - ARB VAOs require that names come from GenVertexArrays.
1569 * This flag notes which behavior governs this VAO.
1571 GLboolean ARBsemantics
;
1574 * Has this array object been bound?
1576 GLboolean EverBound
;
1578 /** Derived vertex attribute arrays */
1579 struct gl_client_array _VertexAttrib
[VERT_ATTRIB_MAX
];
1581 /** Vertex attribute arrays */
1582 struct gl_vertex_attrib_array VertexAttrib
[VERT_ATTRIB_MAX
];
1584 /** Vertex buffer bindings */
1585 struct gl_vertex_buffer_binding VertexBinding
[VERT_ATTRIB_MAX
];
1587 /** Mask of VERT_BIT_* values indicating which arrays are enabled */
1588 GLbitfield64 _Enabled
;
1590 /** Mask of VERT_BIT_* values indicating changed/dirty arrays */
1591 GLbitfield64 NewArrays
;
1594 * Min of all enabled arrays' _MaxElement. When arrays reside inside VBOs
1595 * we can determine the max legal (in bounds) glDrawElements array index.
1599 struct gl_buffer_object
*ElementArrayBufferObj
;
1604 * Vertex array state
1606 struct gl_array_attrib
1608 /** Currently bound array object. See _mesa_BindVertexArrayAPPLE() */
1609 struct gl_array_object
*ArrayObj
;
1611 /** The default vertex array object */
1612 struct gl_array_object
*DefaultArrayObj
;
1614 /** Array objects (GL_ARB/APPLE_vertex_array_object) */
1615 struct _mesa_HashTable
*Objects
;
1617 GLint ActiveTexture
; /**< Client Active Texture */
1618 GLuint LockFirst
; /**< GL_EXT_compiled_vertex_array */
1619 GLuint LockCount
; /**< GL_EXT_compiled_vertex_array */
1622 * \name Primitive restart controls
1624 * Primitive restart is enabled if either \c PrimitiveRestart or
1625 * \c PrimitiveRestartFixedIndex is set.
1628 GLboolean PrimitiveRestart
;
1629 GLboolean PrimitiveRestartFixedIndex
;
1630 GLboolean _PrimitiveRestart
;
1631 GLuint RestartIndex
;
1634 /* GL_ARB_vertex_buffer_object */
1635 struct gl_buffer_object
*ArrayBufferObj
;
1638 * Vertex arrays as consumed by a driver.
1639 * The array pointer is set up only by the VBO module.
1641 const struct gl_client_array
**_DrawArrays
; /**< 0..VERT_ATTRIB_MAX-1 */
1646 * Feedback buffer state
1651 GLbitfield _Mask
; /**< FB_* bits */
1659 * Selection buffer state
1663 GLuint
*Buffer
; /**< selection buffer */
1664 GLuint BufferSize
; /**< size of the selection buffer */
1665 GLuint BufferCount
; /**< number of values in the selection buffer */
1666 GLuint Hits
; /**< number of records in the selection buffer */
1667 GLuint NameStackDepth
; /**< name stack depth */
1668 GLuint NameStack
[MAX_NAME_STACK_DEPTH
]; /**< name stack */
1669 GLboolean HitFlag
; /**< hit flag */
1670 GLfloat HitMinZ
; /**< minimum hit depth */
1671 GLfloat HitMaxZ
; /**< maximum hit depth */
1676 * 1-D Evaluator control points
1680 GLuint Order
; /**< Number of control points */
1681 GLfloat u1
, u2
, du
; /**< u1, u2, 1.0/(u2-u1) */
1682 GLfloat
*Points
; /**< Points to contiguous control points */
1687 * 2-D Evaluator control points
1691 GLuint Uorder
; /**< Number of control points in U dimension */
1692 GLuint Vorder
; /**< Number of control points in V dimension */
1695 GLfloat
*Points
; /**< Points to contiguous control points */
1700 * All evaluator control point state
1702 struct gl_evaluators
1708 struct gl_1d_map Map1Vertex3
;
1709 struct gl_1d_map Map1Vertex4
;
1710 struct gl_1d_map Map1Index
;
1711 struct gl_1d_map Map1Color4
;
1712 struct gl_1d_map Map1Normal
;
1713 struct gl_1d_map Map1Texture1
;
1714 struct gl_1d_map Map1Texture2
;
1715 struct gl_1d_map Map1Texture3
;
1716 struct gl_1d_map Map1Texture4
;
1723 struct gl_2d_map Map2Vertex3
;
1724 struct gl_2d_map Map2Vertex4
;
1725 struct gl_2d_map Map2Index
;
1726 struct gl_2d_map Map2Color4
;
1727 struct gl_2d_map Map2Normal
;
1728 struct gl_2d_map Map2Texture1
;
1729 struct gl_2d_map Map2Texture2
;
1730 struct gl_2d_map Map2Texture3
;
1731 struct gl_2d_map Map2Texture4
;
1736 struct gl_transform_feedback_varying_info
1745 * Per-output info vertex shaders for transform feedback.
1747 struct gl_transform_feedback_output
1749 unsigned OutputRegister
;
1750 unsigned OutputBuffer
;
1751 unsigned NumComponents
;
1753 /** offset (in DWORDs) of this output within the interleaved structure */
1757 * Offset into the output register of the data to output. For example,
1758 * if NumComponents is 2 and ComponentOffset is 1, then the data to
1759 * offset is in the y and z components of the output register.
1761 unsigned ComponentOffset
;
1765 /** Post-link transform feedback info. */
1766 struct gl_transform_feedback_info
1768 unsigned NumOutputs
;
1771 * Number of transform feedback buffers in use by this program.
1773 unsigned NumBuffers
;
1775 struct gl_transform_feedback_output
*Outputs
;
1777 /** Transform feedback varyings used for the linking of this shader program.
1779 * Use for glGetTransformFeedbackVarying().
1781 struct gl_transform_feedback_varying_info
*Varyings
;
1785 * Total number of components stored in each buffer. This may be used by
1786 * hardware back-ends to determine the correct stride when interleaving
1787 * multiple transform feedback outputs in the same buffer.
1789 unsigned BufferStride
[MAX_FEEDBACK_BUFFERS
];
1794 * Transform feedback object state
1796 struct gl_transform_feedback_object
1798 GLuint Name
; /**< AKA the object ID */
1799 GLchar
*Label
; /**< GL_KHR_debug */
1801 GLboolean Active
; /**< Is transform feedback enabled? */
1802 GLboolean Paused
; /**< Is transform feedback paused? */
1803 GLboolean EndedAnytime
; /**< Has EndTransformFeedback been called
1805 GLboolean EverBound
; /**< Has this object been bound? */
1808 * The shader program active when BeginTransformFeedback() was called.
1809 * When active and unpaused, this equals ctx->Shader.CurrentVertexProgram.
1811 struct gl_shader_program
*shader_program
;
1814 * GLES: if Active is true, remaining number of primitives which can be
1815 * rendered without overflow. This is necessary to track because GLES
1816 * requires us to generate INVALID_OPERATION if a call to glDrawArrays or
1817 * glDrawArraysInstanced would overflow transform feedback buffers.
1818 * Undefined if Active is false.
1820 * Not tracked for desktop GL since it's unnecessary.
1822 unsigned GlesRemainingPrims
;
1824 /** The feedback buffers */
1825 GLuint BufferNames
[MAX_FEEDBACK_BUFFERS
];
1826 struct gl_buffer_object
*Buffers
[MAX_FEEDBACK_BUFFERS
];
1828 /** Start of feedback data in dest buffer */
1829 GLintptr Offset
[MAX_FEEDBACK_BUFFERS
];
1832 * Max data to put into dest buffer (in bytes). Computed based on
1833 * RequestedSize and the actual size of the buffer.
1835 GLsizeiptr Size
[MAX_FEEDBACK_BUFFERS
];
1838 * Size that was specified when the buffer was bound. If the buffer was
1839 * bound with glBindBufferBase() or glBindBufferOffsetEXT(), this value is
1842 GLsizeiptr RequestedSize
[MAX_FEEDBACK_BUFFERS
];
1847 * Context state for transform feedback.
1849 struct gl_transform_feedback_state
1851 GLenum Mode
; /**< GL_POINTS, GL_LINES or GL_TRIANGLES */
1853 /** The general binding point (GL_TRANSFORM_FEEDBACK_BUFFER) */
1854 struct gl_buffer_object
*CurrentBuffer
;
1856 /** The table of all transform feedback objects */
1857 struct _mesa_HashTable
*Objects
;
1859 /** The current xform-fb object (GL_TRANSFORM_FEEDBACK_BINDING) */
1860 struct gl_transform_feedback_object
*CurrentObject
;
1862 /** The default xform-fb object (Name==0) */
1863 struct gl_transform_feedback_object
*DefaultObject
;
1868 * A "performance monitor" as described in AMD_performance_monitor.
1870 struct gl_perf_monitor_object
1874 /** True if the monitor is currently active (Begin called but not End). */
1878 * True if the monitor has ended.
1880 * This is distinct from !Active because it may never have began.
1885 * A list of groups with currently active counters.
1887 * ActiveGroups[g] == n if there are n counters active from group 'g'.
1889 unsigned *ActiveGroups
;
1892 * An array of bitsets, subscripted by group ID, then indexed by counter ID.
1894 * Checking whether counter 'c' in group 'g' is active can be done via:
1896 * BITSET_TEST(ActiveCounters[g], c)
1898 GLuint
**ActiveCounters
;
1902 union gl_perf_monitor_counter_value
1910 struct gl_perf_monitor_counter
1912 /** Human readable name for the counter. */
1916 * Data type of the counter. Valid values are FLOAT, UNSIGNED_INT,
1917 * UNSIGNED_INT64_AMD, and PERCENTAGE_AMD.
1921 /** Minimum counter value. */
1922 union gl_perf_monitor_counter_value Minimum
;
1924 /** Maximum counter value. */
1925 union gl_perf_monitor_counter_value Maximum
;
1929 struct gl_perf_monitor_group
1931 /** Human readable name for the group. */
1935 * Maximum number of counters in this group which can be active at the
1938 GLuint MaxActiveCounters
;
1940 /** Array of counters within this group. */
1941 const struct gl_perf_monitor_counter
*Counters
;
1947 * Context state for AMD_performance_monitor.
1949 struct gl_perf_monitor_state
1951 /** Array of performance monitor groups (indexed by group ID) */
1952 const struct gl_perf_monitor_group
*Groups
;
1955 /** The table of all performance monitors. */
1956 struct _mesa_HashTable
*Monitors
;
1961 * Names of the various vertex/fragment program register files, etc.
1963 * NOTE: first four tokens must fit into 2 bits (see t_vb_arbprogram.c)
1964 * All values should fit in a 4-bit field.
1966 * NOTE: PROGRAM_STATE_VAR, PROGRAM_CONSTANT, and PROGRAM_UNIFORM can all be
1967 * considered to be "uniform" variables since they can only be set outside
1968 * glBegin/End. They're also all stored in the same Parameters array.
1972 PROGRAM_TEMPORARY
, /**< machine->Temporary[] */
1973 PROGRAM_ARRAY
, /**< Arrays & Matrixes */
1974 PROGRAM_INPUT
, /**< machine->Inputs[] */
1975 PROGRAM_OUTPUT
, /**< machine->Outputs[] */
1976 PROGRAM_STATE_VAR
, /**< gl_program->Parameters[] */
1977 PROGRAM_CONSTANT
, /**< gl_program->Parameters[] */
1978 PROGRAM_UNIFORM
, /**< gl_program->Parameters[] */
1979 PROGRAM_WRITE_ONLY
, /**< A dummy, write-only register */
1980 PROGRAM_ADDRESS
, /**< machine->AddressReg */
1981 PROGRAM_SAMPLER
, /**< for shader samplers, compile-time only */
1982 PROGRAM_SYSTEM_VALUE
,/**< InstanceId, PrimitiveID, etc. */
1983 PROGRAM_UNDEFINED
, /**< Invalid/TBD value */
1989 * If the register file is PROGRAM_SYSTEM_VALUE, the register index will be
1990 * one of these values.
1994 SYSTEM_VALUE_FRONT_FACE
, /**< Fragment shader only (not done yet) */
1995 SYSTEM_VALUE_VERTEX_ID
, /**< Vertex shader only */
1996 SYSTEM_VALUE_INSTANCE_ID
, /**< Vertex shader only */
1997 SYSTEM_VALUE_SAMPLE_ID
, /**< Fragment shader only */
1998 SYSTEM_VALUE_SAMPLE_POS
, /**< Fragment shader only */
1999 SYSTEM_VALUE_SAMPLE_MASK_IN
, /**< Fragment shader only */
2000 SYSTEM_VALUE_MAX
/**< Number of values */
2005 * The possible interpolation qualifiers that can be applied to a fragment
2006 * shader input in GLSL.
2008 * Note: INTERP_QUALIFIER_NONE must be 0 so that memsetting the
2009 * gl_fragment_program data structure to 0 causes the default behavior.
2011 enum glsl_interp_qualifier
2013 INTERP_QUALIFIER_NONE
= 0,
2014 INTERP_QUALIFIER_SMOOTH
,
2015 INTERP_QUALIFIER_FLAT
,
2016 INTERP_QUALIFIER_NOPERSPECTIVE
,
2017 INTERP_QUALIFIER_COUNT
/**< Number of interpolation qualifiers */
2022 * \brief Layout qualifiers for gl_FragDepth.
2024 * Extension AMD_conservative_depth allows gl_FragDepth to be redeclared with
2025 * a layout qualifier.
2027 * \see enum ir_depth_layout
2029 enum gl_frag_depth_layout
2031 FRAG_DEPTH_LAYOUT_NONE
, /**< No layout is specified. */
2032 FRAG_DEPTH_LAYOUT_ANY
,
2033 FRAG_DEPTH_LAYOUT_GREATER
,
2034 FRAG_DEPTH_LAYOUT_LESS
,
2035 FRAG_DEPTH_LAYOUT_UNCHANGED
2040 * Base class for any kind of program object
2045 GLubyte
*String
; /**< Null-terminated program text */
2047 GLenum Target
; /**< GL_VERTEX/FRAGMENT_PROGRAM_ARB, GL_GEOMETRY_PROGRAM_NV */
2048 GLenum Format
; /**< String encoding format */
2050 struct prog_instruction
*Instructions
;
2052 GLbitfield64 InputsRead
; /**< Bitmask of which input regs are read */
2053 GLbitfield64 OutputsWritten
; /**< Bitmask of which output regs are written */
2054 GLbitfield SystemValuesRead
; /**< Bitmask of SYSTEM_VALUE_x inputs used */
2055 GLbitfield InputFlags
[MAX_PROGRAM_INPUTS
]; /**< PROG_PARAM_BIT_x flags */
2056 GLbitfield OutputFlags
[MAX_PROGRAM_OUTPUTS
]; /**< PROG_PARAM_BIT_x flags */
2057 GLbitfield TexturesUsed
[MAX_COMBINED_TEXTURE_IMAGE_UNITS
]; /**< TEXTURE_x_BIT bitmask */
2058 GLbitfield SamplersUsed
; /**< Bitfield of which samplers are used */
2059 GLbitfield ShadowSamplers
; /**< Texture units used for shadow sampling. */
2061 GLboolean UsesGather
; /**< Does this program use gather4 at all? */
2064 * For vertex and geometry shaders, true if the program uses the
2065 * gl_ClipDistance output. Ignored for fragment shaders.
2067 GLboolean UsesClipDistanceOut
;
2070 /** Named parameters, constants, etc. from program text */
2071 struct gl_program_parameter_list
*Parameters
;
2074 * Local parameters used by the program.
2076 * It's dynamically allocated because it is rarely used (just
2077 * assembly-style programs), and MAX_PROGRAM_LOCAL_PARAMS entries once it's
2080 GLfloat (*LocalParams
)[4];
2082 /** Map from sampler unit to texture unit (set by glUniform1i()) */
2083 GLubyte SamplerUnits
[MAX_SAMPLERS
];
2085 /** Bitmask of which register files are read/written with indirect
2086 * addressing. Mask of (1 << PROGRAM_x) bits.
2088 GLbitfield IndirectRegisterFiles
;
2090 /** Logical counts */
2092 GLuint NumInstructions
;
2093 GLuint NumTemporaries
;
2094 GLuint NumParameters
;
2095 GLuint NumAttributes
;
2096 GLuint NumAddressRegs
;
2097 GLuint NumAluInstructions
;
2098 GLuint NumTexInstructions
;
2099 GLuint NumTexIndirections
;
2101 /** Native, actual h/w counts */
2103 GLuint NumNativeInstructions
;
2104 GLuint NumNativeTemporaries
;
2105 GLuint NumNativeParameters
;
2106 GLuint NumNativeAttributes
;
2107 GLuint NumNativeAddressRegs
;
2108 GLuint NumNativeAluInstructions
;
2109 GLuint NumNativeTexInstructions
;
2110 GLuint NumNativeTexIndirections
;
2115 /** Vertex program object */
2116 struct gl_vertex_program
2118 struct gl_program Base
; /**< base class */
2119 GLboolean IsPositionInvariant
;
2123 /** Geometry program object */
2124 struct gl_geometry_program
2126 struct gl_program Base
; /**< base class */
2130 GLenum InputType
; /**< GL_POINTS, GL_LINES, GL_LINES_ADJACENCY_ARB,
2131 GL_TRIANGLES, or GL_TRIANGLES_ADJACENCY_ARB */
2132 GLenum OutputType
; /**< GL_POINTS, GL_LINE_STRIP or GL_TRIANGLE_STRIP */
2133 GLboolean UsesEndPrimitive
;
2137 /** Fragment program object */
2138 struct gl_fragment_program
2140 struct gl_program Base
; /**< base class */
2141 GLboolean UsesKill
; /**< shader uses KIL instruction */
2142 GLboolean UsesDFdy
; /**< shader uses DDY instruction */
2143 GLboolean OriginUpperLeft
;
2144 GLboolean PixelCenterInteger
;
2145 enum gl_frag_depth_layout FragDepthLayout
;
2148 * GLSL interpolation qualifier associated with each fragment shader input.
2149 * For inputs that do not have an interpolation qualifier specified in
2150 * GLSL, the value is INTERP_QUALIFIER_NONE.
2152 enum glsl_interp_qualifier InterpQualifier
[VARYING_SLOT_MAX
];
2155 * Bitfield indicating, for each fragment shader input, 1 if that input
2156 * uses centroid interpolation, 0 otherwise. Unused inputs are 0.
2158 GLbitfield64 IsCentroid
;
2161 * Bitfield indicating, for each fragment shader input, 1 if that input
2162 * uses sample interpolation, 0 otherwise. Unused inputs are 0.
2164 GLbitfield64 IsSample
;
2169 * State common to vertex and fragment programs.
2171 struct gl_program_state
2173 GLint ErrorPos
; /* GL_PROGRAM_ERROR_POSITION_ARB/NV */
2174 const char *ErrorString
; /* GL_PROGRAM_ERROR_STRING_ARB/NV */
2179 * Context state for vertex programs.
2181 struct gl_vertex_program_state
2183 GLboolean Enabled
; /**< User-set GL_VERTEX_PROGRAM_ARB/NV flag */
2184 GLboolean _Enabled
; /**< Enabled and _valid_ user program? */
2185 GLboolean PointSizeEnabled
; /**< GL_VERTEX_PROGRAM_POINT_SIZE_ARB/NV */
2186 GLboolean TwoSideEnabled
; /**< GL_VERTEX_PROGRAM_TWO_SIDE_ARB/NV */
2187 /** Computed two sided lighting for fixed function/programs. */
2188 GLboolean _TwoSideEnabled
;
2189 struct gl_vertex_program
*Current
; /**< User-bound vertex program */
2191 /** Currently enabled and valid vertex program (including internal
2192 * programs, user-defined vertex programs and GLSL vertex shaders).
2193 * This is the program we must use when rendering.
2195 struct gl_vertex_program
*_Current
;
2197 GLfloat Parameters
[MAX_PROGRAM_ENV_PARAMS
][4]; /**< Env params */
2199 /** Should fixed-function T&L be implemented with a vertex prog? */
2200 GLboolean _MaintainTnlProgram
;
2202 /** Program to emulate fixed-function T&L (see above) */
2203 struct gl_vertex_program
*_TnlProgram
;
2205 /** Cache of fixed-function programs */
2206 struct gl_program_cache
*Cache
;
2208 GLboolean _Overriden
;
2213 * Context state for geometry programs.
2215 struct gl_geometry_program_state
2217 GLboolean Enabled
; /**< GL_ARB_GEOMETRY_SHADER4 */
2218 GLboolean _Enabled
; /**< Enabled and valid program? */
2219 struct gl_geometry_program
*Current
; /**< user-bound geometry program */
2221 /** Currently enabled and valid program (including internal programs
2222 * and compiled shader programs).
2224 struct gl_geometry_program
*_Current
;
2226 GLfloat Parameters
[MAX_PROGRAM_ENV_PARAMS
][4]; /**< Env params */
2228 /** Cache of fixed-function programs */
2229 struct gl_program_cache
*Cache
;
2233 * Context state for fragment programs.
2235 struct gl_fragment_program_state
2237 GLboolean Enabled
; /**< User-set fragment program enable flag */
2238 GLboolean _Enabled
; /**< Enabled and _valid_ user program? */
2239 struct gl_fragment_program
*Current
; /**< User-bound fragment program */
2241 /** Currently enabled and valid fragment program (including internal
2242 * programs, user-defined fragment programs and GLSL fragment shaders).
2243 * This is the program we must use when rendering.
2245 struct gl_fragment_program
*_Current
;
2247 GLfloat Parameters
[MAX_PROGRAM_ENV_PARAMS
][4]; /**< Env params */
2249 /** Should fixed-function texturing be implemented with a fragment prog? */
2250 GLboolean _MaintainTexEnvProgram
;
2252 /** Program to emulate fixed-function texture env/combine (see above) */
2253 struct gl_fragment_program
*_TexEnvProgram
;
2255 /** Cache of fixed-function programs */
2256 struct gl_program_cache
*Cache
;
2261 * ATI_fragment_shader runtime state
2263 #define ATI_FS_INPUT_PRIMARY 0
2264 #define ATI_FS_INPUT_SECONDARY 1
2266 struct atifs_instruction
;
2267 struct atifs_setupinst
;
2270 * ATI fragment shader
2272 struct ati_fragment_shader
2276 struct atifs_instruction
*Instructions
[2];
2277 struct atifs_setupinst
*SetupInst
[2];
2278 GLfloat Constants
[8][4];
2279 GLbitfield LocalConstDef
; /**< Indicates which constants have been set */
2280 GLubyte numArithInstr
[2];
2281 GLubyte regsAssigned
[2];
2282 GLubyte NumPasses
; /**< 1 or 2 */
2284 GLubyte last_optype
;
2285 GLboolean interpinp1
;
2291 * Context state for GL_ATI_fragment_shader
2293 struct gl_ati_fragment_shader_state
2296 GLboolean _Enabled
; /**< enabled and valid shader? */
2297 GLboolean Compiling
;
2298 GLfloat GlobalConstants
[8][4];
2299 struct ati_fragment_shader
*Current
;
2303 /** Set by #pragma directives */
2304 struct gl_sl_pragmas
2306 GLboolean IgnoreOptimize
; /**< ignore #pragma optimize(on/off) ? */
2307 GLboolean IgnoreDebug
; /**< ignore #pragma debug(on/off) ? */
2308 GLboolean Optimize
; /**< defaults on */
2309 GLboolean Debug
; /**< defaults off */
2314 * A GLSL vertex or fragment shader object.
2318 /** GL_FRAGMENT_SHADER || GL_VERTEX_SHADER || GL_GEOMETRY_SHADER_ARB.
2319 * Must be the first field.
2322 gl_shader_stage Stage
;
2323 GLuint Name
; /**< AKA the handle */
2324 GLchar
*Label
; /**< GL_KHR_debug */
2325 GLint RefCount
; /**< Reference count */
2326 GLboolean DeletePending
;
2327 GLboolean CompileStatus
;
2328 const GLchar
*Source
; /**< Source code string */
2329 GLuint SourceChecksum
; /**< for debug/logging purposes */
2330 struct gl_program
*Program
; /**< Post-compile assembly code */
2332 struct gl_sl_pragmas Pragmas
;
2334 unsigned Version
; /**< GLSL version used for linking */
2335 GLboolean IsES
; /**< True if this shader uses GLSL ES */
2338 * \name Sampler tracking
2340 * \note Each of these fields is only set post-linking.
2343 unsigned num_samplers
; /**< Number of samplers used by this shader. */
2344 GLbitfield active_samplers
; /**< Bitfield of which samplers are used */
2345 GLbitfield shadow_samplers
; /**< Samplers used for shadow sampling. */
2349 * Map from sampler unit to texture unit (set by glUniform1i())
2351 * A sampler unit is associated with each sampler uniform by the linker.
2352 * The sampler unit associated with each uniform is stored in the
2353 * \c gl_uniform_storage::sampler field.
2355 GLubyte SamplerUnits
[MAX_SAMPLERS
];
2356 /** Which texture target is being sampled (TEXTURE_1D/2D/3D/etc_INDEX) */
2357 gl_texture_index SamplerTargets
[MAX_SAMPLERS
];
2360 * Number of default uniform block components used by this shader.
2362 * This field is only set post-linking.
2364 unsigned num_uniform_components
;
2367 * Number of combined uniform components used by this shader.
2369 * This field is only set post-linking. It is the sum of the uniform block
2370 * sizes divided by sizeof(float), and num_uniform_compoennts.
2372 unsigned num_combined_uniform_components
;
2375 * This shader's uniform block information.
2377 * The offsets of the variables are assigned only for shaders in a program's
2380 struct gl_uniform_block
*UniformBlocks
;
2381 unsigned NumUniformBlocks
;
2383 struct exec_list
*ir
;
2384 struct glsl_symbol_table
*symbols
;
2386 bool uses_builtin_functions
;
2389 * Geometry shader state from GLSL 1.50 layout qualifiers.
2394 * GL_POINTS, GL_LINES, GL_LINES_ADJACENCY, GL_TRIANGLES, or
2395 * GL_TRIANGLES_ADJACENCY, or PRIM_UNKNOWN if it's not set in this
2400 * GL_POINTS, GL_LINE_STRIP or GL_TRIANGLE_STRIP, or PRIM_UNKNOWN if
2401 * it's not set in this shader.
2408 struct gl_uniform_buffer_variable
2413 * Name of the uniform as seen by glGetUniformIndices.
2415 * glGetUniformIndices requires that the block instance index \b not be
2416 * present in the name of queried uniforms.
2419 * \c gl_uniform_buffer_variable::IndexName and
2420 * \c gl_uniform_buffer_variable::Name may point to identical storage.
2424 const struct glsl_type
*Type
;
2425 unsigned int Offset
;
2430 enum gl_uniform_block_packing
2438 struct gl_uniform_block
2440 /** Declared name of the uniform block */
2443 /** Array of supplemental information about UBO ir_variables. */
2444 struct gl_uniform_buffer_variable
*Uniforms
;
2448 * Index (GL_UNIFORM_BLOCK_BINDING) into ctx->UniformBufferBindings[] to use
2449 * with glBindBufferBase to bind a buffer object to this uniform block. When
2450 * updated in the program, _NEW_BUFFER_OBJECT will be set.
2455 * Minimum size of a buffer object to back this uniform buffer
2456 * (GL_UNIFORM_BLOCK_DATA_SIZE).
2458 GLuint UniformBufferSize
;
2461 * Layout specified in the shader
2463 * This isn't accessible through the API, but it is used while
2464 * cross-validating uniform blocks.
2466 enum gl_uniform_block_packing _Packing
;
2470 * Structure that represents a reference to an atomic buffer from some
2473 struct gl_active_atomic_buffer
2475 /** Uniform indices of the atomic counters declared within it. */
2479 /** Binding point index associated with it. */
2482 /** Minimum reasonable size it is expected to have. */
2485 /** Shader stages making use of it. */
2486 GLboolean StageReferences
[MESA_SHADER_STAGES
];
2490 * A GLSL program object.
2491 * Basically a linked collection of vertex and fragment shaders.
2493 struct gl_shader_program
2495 GLenum Type
; /**< Always GL_SHADER_PROGRAM (internal token) */
2496 GLuint Name
; /**< aka handle or ID */
2497 GLchar
*Label
; /**< GL_KHR_debug */
2498 GLint RefCount
; /**< Reference count */
2499 GLboolean DeletePending
;
2502 * Is the application intending to glGetProgramBinary this program?
2504 GLboolean BinaryRetreivableHint
;
2507 * Flags that the linker should not reject the program if it lacks
2508 * a vertex or fragment shader. GLES2 doesn't allow separate
2509 * shader objects, and would reject them. However, we internally
2510 * build separate shader objects for fixed function programs, which
2511 * we use for drivers/common/meta.c and for handling
2512 * _mesa_update_state with no program bound (for example in
2515 GLboolean InternalSeparateShader
;
2517 GLuint NumShaders
; /**< number of attached shaders */
2518 struct gl_shader
**Shaders
; /**< List of attached the shaders */
2521 * User-defined attribute bindings
2523 * These are set via \c glBindAttribLocation and are used to direct the
2524 * GLSL linker. These are \b not the values used in the compiled shader,
2525 * and they are \b not the values returned by \c glGetAttribLocation.
2527 struct string_to_uint_map
*AttributeBindings
;
2530 * User-defined fragment data bindings
2532 * These are set via \c glBindFragDataLocation and are used to direct the
2533 * GLSL linker. These are \b not the values used in the compiled shader,
2534 * and they are \b not the values returned by \c glGetFragDataLocation.
2536 struct string_to_uint_map
*FragDataBindings
;
2537 struct string_to_uint_map
*FragDataIndexBindings
;
2540 * Transform feedback varyings last specified by
2541 * glTransformFeedbackVaryings().
2543 * For the current set of transform feeedback varyings used for transform
2544 * feedback output, see LinkedTransformFeedback.
2549 GLchar
**VaryingNames
; /**< Array [NumVarying] of char * */
2550 } TransformFeedback
;
2552 /** Post-link transform feedback info. */
2553 struct gl_transform_feedback_info LinkedTransformFeedback
;
2555 /** Post-link gl_FragDepth layout for ARB_conservative_depth. */
2556 enum gl_frag_depth_layout FragDepthLayout
;
2559 * Geometry shader state - copied into gl_geometry_program by
2560 * _mesa_copy_linked_program_data().
2565 GLenum InputType
; /**< GL_POINTS, GL_LINES, GL_LINES_ADJACENCY_ARB,
2566 GL_TRIANGLES, or GL_TRIANGLES_ADJACENCY_ARB */
2567 GLenum OutputType
; /**< GL_POINTS, GL_LINE_STRIP or GL_TRIANGLE_STRIP */
2569 * True if gl_ClipDistance is written to. Copied into
2570 * gl_geometry_program by _mesa_copy_linked_program_data().
2572 GLboolean UsesClipDistance
;
2573 GLuint ClipDistanceArraySize
; /**< Size of the gl_ClipDistance array, or
2574 0 if not present. */
2575 GLboolean UsesEndPrimitive
;
2578 /** Vertex shader state */
2581 * True if gl_ClipDistance is written to. Copied into gl_vertex_program
2582 * by _mesa_copy_linked_program_data().
2584 GLboolean UsesClipDistance
;
2585 GLuint ClipDistanceArraySize
; /**< Size of the gl_ClipDistance array, or
2586 0 if not present. */
2589 /* post-link info: */
2590 unsigned NumUserUniformStorage
;
2591 struct gl_uniform_storage
*UniformStorage
;
2594 * Size of the gl_ClipDistance array that is output from the last pipeline
2595 * stage before the fragment shader.
2597 unsigned LastClipDistanceArraySize
;
2599 struct gl_uniform_block
*UniformBlocks
;
2600 unsigned NumUniformBlocks
;
2603 * Scale factor for the uniform base location
2605 * This is used to generate locations (returned by \c glGetUniformLocation)
2606 * of uniforms. The base location of the uniform is multiplied by this
2607 * value, and the array index is added.
2613 * _mesa_uniform_merge_location_offset, _mesa_uniform_split_location_offset
2615 unsigned UniformLocationBaseScale
;
2618 * Indices into the _LinkedShaders's UniformBlocks[] array for each stage
2619 * they're used in, or -1.
2621 * This is used to maintain the Binding values of the stage's UniformBlocks[]
2622 * and to answer the GL_UNIFORM_BLOCK_REFERENCED_BY_*_SHADER queries.
2624 int *UniformBlockStageIndex
[MESA_SHADER_STAGES
];
2627 * Map of active uniform names to locations
2629 * Maps any active uniform that is not an array element to a location.
2630 * Each active uniform, including individual structure members will appear
2631 * in this map. This roughly corresponds to the set of names that would be
2632 * enumerated by \c glGetActiveUniform.
2634 struct string_to_uint_map
*UniformHash
;
2636 struct gl_active_atomic_buffer
*AtomicBuffers
;
2637 unsigned NumAtomicBuffers
;
2639 GLboolean LinkStatus
; /**< GL_LINK_STATUS */
2640 GLboolean Validated
;
2641 GLboolean _Used
; /**< Ever used for drawing? */
2644 unsigned Version
; /**< GLSL version used for linking */
2645 GLboolean IsES
; /**< True if this program uses GLSL ES */
2648 * Per-stage shaders resulting from the first stage of linking.
2650 * Set of linked shaders for this program. The array is accessed using the
2651 * \c MESA_SHADER_* defines. Entries for non-existent stages will be
2654 struct gl_shader
*_LinkedShaders
[MESA_SHADER_STAGES
];
2658 #define GLSL_DUMP 0x1 /**< Dump shaders to stdout */
2659 #define GLSL_LOG 0x2 /**< Write shaders to files */
2660 #define GLSL_OPT 0x4 /**< Force optimizations (override pragmas) */
2661 #define GLSL_NO_OPT 0x8 /**< Force no optimizations (override pragmas) */
2662 #define GLSL_UNIFORMS 0x10 /**< Print glUniform calls */
2663 #define GLSL_NOP_VERT 0x20 /**< Force no-op vertex shaders */
2664 #define GLSL_NOP_FRAG 0x40 /**< Force no-op fragment shaders */
2665 #define GLSL_USE_PROG 0x80 /**< Log glUseProgram calls */
2666 #define GLSL_REPORT_ERRORS 0x100 /**< Print compilation errors */
2667 #define GLSL_DUMP_ON_ERROR 0x200 /**< Dump shaders to stderr on compile error */
2671 * Context state for GLSL vertex/fragment shaders.
2673 struct gl_shader_state
2676 * Programs used for rendering
2678 * There is a separate program set for each shader stage. If
2679 * GL_EXT_separate_shader_objects is not supported, each of these must point
2680 * to \c NULL or to the same program.
2682 struct gl_shader_program
*CurrentVertexProgram
;
2683 struct gl_shader_program
*CurrentGeometryProgram
;
2684 struct gl_shader_program
*CurrentFragmentProgram
;
2686 struct gl_shader_program
*_CurrentFragmentProgram
;
2689 * Program used by glUniform calls.
2691 * Explicitly set by \c glUseProgram and \c glActiveProgramEXT.
2693 struct gl_shader_program
*ActiveProgram
;
2695 GLbitfield Flags
; /**< Mask of GLSL_x flags */
2700 * Compiler options for a single GLSL shaders type
2702 struct gl_shader_compiler_options
2704 /** Driver-selectable options: */
2705 GLboolean EmitCondCodes
; /**< Use condition codes? */
2706 GLboolean EmitNoLoops
;
2707 GLboolean EmitNoFunctions
;
2708 GLboolean EmitNoCont
; /**< Emit CONT opcode? */
2709 GLboolean EmitNoMainReturn
; /**< Emit CONT/RET opcodes? */
2710 GLboolean EmitNoNoise
; /**< Emit NOISE opcodes? */
2711 GLboolean EmitNoPow
; /**< Emit POW opcodes? */
2712 GLboolean LowerClipDistance
; /**< Lower gl_ClipDistance from float[8] to vec4[2]? */
2715 * \name Forms of indirect addressing the driver cannot do.
2718 GLboolean EmitNoIndirectInput
; /**< No indirect addressing of inputs */
2719 GLboolean EmitNoIndirectOutput
; /**< No indirect addressing of outputs */
2720 GLboolean EmitNoIndirectTemp
; /**< No indirect addressing of temps */
2721 GLboolean EmitNoIndirectUniform
; /**< No indirect addressing of constants */
2724 GLuint MaxIfDepth
; /**< Maximum nested IF blocks */
2725 GLuint MaxUnrollIterations
;
2728 * Prefer DP4 instructions (rather than MUL/MAD) for matrix * vector
2729 * operations, such as position transformation.
2731 GLboolean PreferDP4
;
2733 struct gl_sl_pragmas DefaultPragmas
; /**< Default #pragma settings */
2738 * Occlusion/timer query object.
2740 struct gl_query_object
2742 GLenum Target
; /**< The query target, when active */
2743 GLuint Id
; /**< hash table ID/name */
2744 GLchar
*Label
; /**< GL_KHR_debug */
2745 GLuint64EXT Result
; /**< the counter */
2746 GLboolean Active
; /**< inside Begin/EndQuery */
2747 GLboolean Ready
; /**< result is ready? */
2748 GLboolean EverBound
;/**< has query object ever been bound */
2753 * Context state for query objects.
2755 struct gl_query_state
2757 struct _mesa_HashTable
*QueryObjects
;
2758 struct gl_query_object
*CurrentOcclusionObject
; /* GL_ARB_occlusion_query */
2759 struct gl_query_object
*CurrentTimerObject
; /* GL_EXT_timer_query */
2761 /** GL_NV_conditional_render */
2762 struct gl_query_object
*CondRenderQuery
;
2764 /** GL_EXT_transform_feedback */
2765 struct gl_query_object
*PrimitivesGenerated
;
2766 struct gl_query_object
*PrimitivesWritten
;
2768 /** GL_ARB_timer_query */
2769 struct gl_query_object
*TimeElapsed
;
2771 GLenum CondRenderMode
;
2775 /** Sync object state */
2776 struct gl_sync_object
2778 GLenum Type
; /**< GL_SYNC_FENCE */
2779 GLuint Name
; /**< Fence name */
2780 GLchar
*Label
; /**< GL_KHR_debug */
2781 GLint RefCount
; /**< Reference count */
2782 GLboolean DeletePending
; /**< Object was deleted while there were still
2783 * live references (e.g., sync not yet finished)
2785 GLenum SyncCondition
;
2786 GLbitfield Flags
; /**< Flags passed to glFenceSync */
2787 GLuint StatusFlag
:1; /**< Has the sync object been signaled? */
2792 * State which can be shared by multiple contexts:
2794 struct gl_shared_state
2796 _glthread_Mutex Mutex
; /**< for thread safety */
2797 GLint RefCount
; /**< Reference count */
2798 struct _mesa_HashTable
*DisplayList
; /**< Display lists hash table */
2799 struct _mesa_HashTable
*TexObjects
; /**< Texture objects hash table */
2801 /** Default texture objects (shared by all texture units) */
2802 struct gl_texture_object
*DefaultTex
[NUM_TEXTURE_TARGETS
];
2804 /** Fallback texture used when a bound texture is incomplete */
2805 struct gl_texture_object
*FallbackTex
[NUM_TEXTURE_TARGETS
];
2808 * \name Thread safety and statechange notification for texture
2811 * \todo Improve the granularity of locking.
2814 _glthread_Mutex TexMutex
; /**< texobj thread safety */
2815 GLuint TextureStateStamp
; /**< state notification for shared tex */
2818 /** Default buffer object for vertex arrays that aren't in VBOs */
2819 struct gl_buffer_object
*NullBufferObj
;
2822 * \name Vertex/geometry/fragment programs
2825 struct _mesa_HashTable
*Programs
; /**< All vertex/fragment programs */
2826 struct gl_vertex_program
*DefaultVertexProgram
;
2827 struct gl_fragment_program
*DefaultFragmentProgram
;
2828 struct gl_geometry_program
*DefaultGeometryProgram
;
2831 /* GL_ATI_fragment_shader */
2832 struct _mesa_HashTable
*ATIShaders
;
2833 struct ati_fragment_shader
*DefaultFragmentShader
;
2835 struct _mesa_HashTable
*BufferObjects
;
2837 /** Table of both gl_shader and gl_shader_program objects */
2838 struct _mesa_HashTable
*ShaderObjects
;
2840 /* GL_EXT_framebuffer_object */
2841 struct _mesa_HashTable
*RenderBuffers
;
2842 struct _mesa_HashTable
*FrameBuffers
;
2845 struct set
*SyncObjects
;
2847 /** GL_ARB_sampler_objects */
2848 struct _mesa_HashTable
*SamplerObjects
;
2851 * Some context in this share group was affected by a GPU reset
2853 * On the next call to \c glGetGraphicsResetStatus, contexts that have not
2854 * been affected by a GPU reset must also return
2855 * \c GL_INNOCENT_CONTEXT_RESET_ARB.
2857 * Once this field becomes true, it is never reset to false.
2859 bool ShareGroupReset
;
2865 * Renderbuffers represent drawing surfaces such as color, depth and/or
2866 * stencil. A framebuffer object has a set of renderbuffers.
2867 * Drivers will typically derive subclasses of this type.
2869 struct gl_renderbuffer
2871 _glthread_Mutex Mutex
; /**< for thread safety */
2872 GLuint ClassID
; /**< Useful for drivers */
2874 GLchar
*Label
; /**< GL_KHR_debug */
2876 GLuint Width
, Height
;
2878 GLboolean Purgeable
; /**< Is the buffer purgeable under memory pressure? */
2879 GLboolean AttachedAnytime
; /**< TRUE if it was attached to a framebuffer */
2881 * True for renderbuffers that wrap textures, giving the driver a chance to
2882 * flush render caches through the FinishRenderTexture hook.
2884 * Drivers may also set this on renderbuffers other than those generated by
2885 * glFramebufferTexture(), though it means FinishRenderTexture() would be
2886 * called without a rb->TexImage.
2888 GLboolean NeedsFinishRenderTexture
;
2890 GLenum InternalFormat
; /**< The user-specified format */
2891 GLenum _BaseFormat
; /**< Either GL_RGB, GL_RGBA, GL_DEPTH_COMPONENT or
2892 GL_STENCIL_INDEX. */
2893 gl_format Format
; /**< The actual renderbuffer memory format */
2895 * Pointer to the texture image if this renderbuffer wraps a texture,
2898 * Note that the reference on the gl_texture_object containing this
2899 * TexImage is held by the gl_renderbuffer_attachment.
2901 struct gl_texture_image
*TexImage
;
2903 /** Delete this renderbuffer */
2904 void (*Delete
)(struct gl_context
*ctx
, struct gl_renderbuffer
*rb
);
2906 /** Allocate new storage for this renderbuffer */
2907 GLboolean (*AllocStorage
)(struct gl_context
*ctx
,
2908 struct gl_renderbuffer
*rb
,
2909 GLenum internalFormat
,
2910 GLuint width
, GLuint height
);
2915 * A renderbuffer attachment points to either a texture object (and specifies
2916 * a mipmap level, cube face or 3D texture slice) or points to a renderbuffer.
2918 struct gl_renderbuffer_attachment
2920 GLenum Type
; /**< \c GL_NONE or \c GL_TEXTURE or \c GL_RENDERBUFFER_EXT */
2924 * If \c Type is \c GL_RENDERBUFFER_EXT, this stores a pointer to the
2925 * application supplied renderbuffer object.
2927 struct gl_renderbuffer
*Renderbuffer
;
2930 * If \c Type is \c GL_TEXTURE, this stores a pointer to the application
2931 * supplied texture object.
2933 struct gl_texture_object
*Texture
;
2934 GLuint TextureLevel
; /**< Attached mipmap level. */
2935 GLuint CubeMapFace
; /**< 0 .. 5, for cube map textures. */
2936 GLuint Zoffset
; /**< Slice for 3D textures, or layer for both 1D
2937 * and 2D array textures */
2943 * A framebuffer is a collection of renderbuffers (color, depth, stencil, etc).
2944 * In C++ terms, think of this as a base class from which device drivers
2945 * will make derived classes.
2947 struct gl_framebuffer
2949 _glthread_Mutex Mutex
; /**< for thread safety */
2951 * If zero, this is a window system framebuffer. If non-zero, this
2952 * is a FBO framebuffer; note that for some devices (i.e. those with
2953 * a natural pixel coordinate system for FBOs that differs from the
2954 * OpenGL/Mesa coordinate system), this means that the viewport,
2955 * polygon face orientation, and polygon stipple will have to be inverted.
2958 GLchar
*Label
; /**< GL_KHR_debug */
2961 GLboolean DeletePending
;
2964 * The framebuffer's visual. Immutable if this is a window system buffer.
2965 * Computed from attachments if user-made FBO.
2967 struct gl_config Visual
;
2969 GLuint Width
, Height
; /**< size of frame buffer in pixels */
2971 /** \name Drawing bounds (Intersection of buffer size and scissor box) */
2973 GLint _Xmin
, _Xmax
; /**< inclusive */
2974 GLint _Ymin
, _Ymax
; /**< exclusive */
2977 /** \name Derived Z buffer stuff */
2979 GLuint _DepthMax
; /**< Max depth buffer value */
2980 GLfloat _DepthMaxF
; /**< Float max depth buffer value */
2981 GLfloat _MRD
; /**< minimum resolvable difference in Z values */
2984 /** One of the GL_FRAMEBUFFER_(IN)COMPLETE_* tokens */
2987 /** Integer color values */
2988 GLboolean _IntegerColor
;
2990 /* ARB_color_buffer_float */
2991 GLboolean _AllColorBuffersFixedPoint
; /* no integer, no float */
2992 GLboolean _HasSNormOrFloatColorBuffer
;
2994 /** Array of all renderbuffer attachments, indexed by BUFFER_* tokens. */
2995 struct gl_renderbuffer_attachment Attachment
[BUFFER_COUNT
];
2997 /* In unextended OpenGL these vars are part of the GL_COLOR_BUFFER
2998 * attribute group and GL_PIXEL attribute group, respectively.
3000 GLenum ColorDrawBuffer
[MAX_DRAW_BUFFERS
];
3001 GLenum ColorReadBuffer
;
3003 /** Computed from ColorDraw/ReadBuffer above */
3004 GLuint _NumColorDrawBuffers
;
3005 GLint _ColorDrawBufferIndexes
[MAX_DRAW_BUFFERS
]; /**< BUFFER_x or -1 */
3006 GLint _ColorReadBufferIndex
; /* -1 = None */
3007 struct gl_renderbuffer
*_ColorDrawBuffers
[MAX_DRAW_BUFFERS
];
3008 struct gl_renderbuffer
*_ColorReadBuffer
;
3011 * The maximum number of layers in the framebuffer, or 0 if the framebuffer
3012 * is not layered. For cube maps and cube map arrays, each cube face
3013 * counts as a layer.
3015 GLuint MaxNumLayers
;
3017 /** Delete this framebuffer */
3018 void (*Delete
)(struct gl_framebuffer
*fb
);
3023 * Precision info for shader datatypes. See glGetShaderPrecisionFormat().
3027 GLushort RangeMin
; /**< min value exponent */
3028 GLushort RangeMax
; /**< max value exponent */
3029 GLushort Precision
; /**< number of mantissa bits */
3034 * Limits for vertex, geometry and fragment programs/shaders.
3036 struct gl_program_constants
3038 /* logical limits */
3039 GLuint MaxInstructions
;
3040 GLuint MaxAluInstructions
;
3041 GLuint MaxTexInstructions
;
3042 GLuint MaxTexIndirections
;
3045 GLuint MaxAddressRegs
;
3046 GLuint MaxAddressOffset
; /**< [-MaxAddressOffset, MaxAddressOffset-1] */
3047 GLuint MaxParameters
;
3048 GLuint MaxLocalParams
;
3049 GLuint MaxEnvParams
;
3050 /* native/hardware limits */
3051 GLuint MaxNativeInstructions
;
3052 GLuint MaxNativeAluInstructions
;
3053 GLuint MaxNativeTexInstructions
;
3054 GLuint MaxNativeTexIndirections
;
3055 GLuint MaxNativeAttribs
;
3056 GLuint MaxNativeTemps
;
3057 GLuint MaxNativeAddressRegs
;
3058 GLuint MaxNativeParameters
;
3060 GLuint MaxUniformComponents
; /**< Usually == MaxParameters * 4 */
3063 * \name Per-stage input / output limits
3065 * Previous to OpenGL 3.2, the intrastage data limits were advertised with
3066 * a single value: GL_MAX_VARYING_COMPONENTS (GL_MAX_VARYING_VECTORS in
3067 * ES). This is stored as \c gl_constants::MaxVarying.
3069 * Starting with OpenGL 3.2, the limits are advertised with per-stage
3070 * variables. Each stage as a certain number of outputs that it can feed
3071 * to the next stage and a certain number inputs that it can consume from
3072 * the previous stage.
3074 * Vertex shader inputs do not participate this in this accounting.
3075 * These are tracked exclusively by \c gl_program_constants::MaxAttribs.
3077 * Fragment shader outputs do not participate this in this accounting.
3078 * These are tracked exclusively by \c gl_constants::MaxDrawBuffers.
3081 GLuint MaxInputComponents
;
3082 GLuint MaxOutputComponents
;
3085 /* ES 2.0 and GL_ARB_ES2_compatibility */
3086 struct gl_precision LowFloat
, MediumFloat
, HighFloat
;
3087 struct gl_precision LowInt
, MediumInt
, HighInt
;
3088 /* GL_ARB_uniform_buffer_object */
3089 GLuint MaxUniformBlocks
;
3090 GLuint MaxCombinedUniformComponents
;
3091 GLuint MaxTextureImageUnits
;
3092 /* GL_ARB_shader_atomic_counters */
3093 GLuint MaxAtomicBuffers
;
3094 GLuint MaxAtomicCounters
;
3099 * Constants which may be overridden by device driver during context creation
3100 * but are never changed after that.
3104 GLuint MaxTextureMbytes
; /**< Max memory per image, in MB */
3105 GLuint MaxTextureLevels
; /**< Max mipmap levels. */
3106 GLuint Max3DTextureLevels
; /**< Max mipmap levels for 3D textures */
3107 GLuint MaxCubeTextureLevels
; /**< Max mipmap levels for cube textures */
3108 GLuint MaxArrayTextureLayers
; /**< Max layers in array textures */
3109 GLuint MaxTextureRectSize
; /**< Max rectangle texture size, in pixes */
3110 GLuint MaxTextureCoordUnits
;
3111 GLuint MaxCombinedTextureImageUnits
;
3112 GLuint MaxTextureUnits
; /**< = MIN(CoordUnits, FragmentProgram.ImageUnits) */
3113 GLfloat MaxTextureMaxAnisotropy
; /**< GL_EXT_texture_filter_anisotropic */
3114 GLfloat MaxTextureLodBias
; /**< GL_EXT_texture_lod_bias */
3115 GLuint MaxTextureBufferSize
; /**< GL_ARB_texture_buffer_object */
3117 GLuint TextureBufferOffsetAlignment
; /**< GL_ARB_texture_buffer_range */
3119 GLuint MaxArrayLockSize
;
3123 GLfloat MinPointSize
, MaxPointSize
; /**< aliased */
3124 GLfloat MinPointSizeAA
, MaxPointSizeAA
; /**< antialiased */
3125 GLfloat PointSizeGranularity
;
3126 GLfloat MinLineWidth
, MaxLineWidth
; /**< aliased */
3127 GLfloat MinLineWidthAA
, MaxLineWidthAA
; /**< antialiased */
3128 GLfloat LineWidthGranularity
;
3130 GLuint MaxClipPlanes
;
3132 GLfloat MaxShininess
; /**< GL_NV_light_max_exponent */
3133 GLfloat MaxSpotExponent
; /**< GL_NV_light_max_exponent */
3135 GLuint MaxViewportWidth
, MaxViewportHeight
;
3137 struct gl_program_constants Program
[MESA_SHADER_STAGES
];
3138 GLuint MaxProgramMatrices
;
3139 GLuint MaxProgramMatrixStackDepth
;
3142 GLuint SamplesPassed
;
3145 GLuint PrimitivesGenerated
;
3146 GLuint PrimitivesWritten
;
3149 /** vertex array / buffer object bounds checking */
3150 GLboolean CheckArrayBounds
;
3152 GLuint MaxDrawBuffers
; /**< GL_ARB_draw_buffers */
3154 GLuint MaxColorAttachments
; /**< GL_EXT_framebuffer_object */
3155 GLuint MaxRenderbufferSize
; /**< GL_EXT_framebuffer_object */
3156 GLuint MaxSamples
; /**< GL_ARB_framebuffer_object */
3158 /** Number of varying vectors between any two shader stages. */
3162 * GL_ARB_uniform_buffer_object
3164 GLuint MaxCombinedUniformBlocks
;
3165 GLuint MaxUniformBufferBindings
;
3166 GLuint MaxUniformBlockSize
;
3167 GLuint UniformBufferOffsetAlignment
;
3170 /** GL_ARB_geometry_shader4 */
3171 GLuint MaxGeometryOutputVertices
;
3172 GLuint MaxGeometryTotalOutputComponents
;
3174 GLuint GLSLVersion
; /**< GLSL version supported (ex: 120 = 1.20) */
3177 * Changes default GLSL extension behavior from "error" to "warn". It's out
3178 * of spec, but it can make some apps work that otherwise wouldn't.
3180 GLboolean ForceGLSLExtensionsWarn
;
3183 * If non-zero, forces GLSL shaders without the #version directive to behave
3184 * as if they began with "#version ForceGLSLVersion".
3186 GLuint ForceGLSLVersion
;
3189 * Does the driver support real 32-bit integers? (Otherwise, integers are
3190 * simulated via floats.)
3192 GLboolean NativeIntegers
;
3195 * If the driver supports real 32-bit integers, what integer value should be
3196 * used for boolean true in uniform uploads? (Usually 1 or ~0.)
3198 GLuint UniformBooleanTrue
;
3200 /** Which texture units support GL_ATI_envmap_bumpmap as targets */
3201 GLbitfield SupportedBumpUnits
;
3204 * Maximum amount of time, measured in nanseconds, that the server can wait.
3206 GLuint64 MaxServerWaitTimeout
;
3208 /** GL_EXT_provoking_vertex */
3209 GLboolean QuadsFollowProvokingVertexConvention
;
3211 /** OpenGL version 3.0 */
3212 GLbitfield ContextFlags
; /**< Ex: GL_CONTEXT_FLAG_FORWARD_COMPATIBLE_BIT */
3214 /** OpenGL version 3.2 */
3215 GLbitfield ProfileMask
; /**< Mask of CONTEXT_x_PROFILE_BIT */
3217 /** GL_EXT_transform_feedback */
3218 GLuint MaxTransformFeedbackBuffers
;
3219 GLuint MaxTransformFeedbackSeparateComponents
;
3220 GLuint MaxTransformFeedbackInterleavedComponents
;
3221 GLuint MaxVertexStreams
;
3223 /** GL_EXT_gpu_shader4 */
3224 GLint MinProgramTexelOffset
, MaxProgramTexelOffset
;
3226 /** GL_ARB_texture_gather */
3227 GLuint MinProgramTextureGatherOffset
;
3228 GLuint MaxProgramTextureGatherOffset
;
3229 GLuint MaxProgramTextureGatherComponents
;
3231 /* GL_ARB_robustness */
3232 GLenum ResetStrategy
;
3234 /* GL_ARB_blend_func_extended */
3235 GLuint MaxDualSourceDrawBuffers
;
3238 * Whether the implementation strips out and ignores texture borders.
3240 * Many GPU hardware implementations don't support rendering with texture
3241 * borders and mipmapped textures. (Note: not static border color, but the
3242 * old 1-pixel border around each edge). Implementations then have to do
3243 * slow fallbacks to be correct, or just ignore the border and be fast but
3244 * wrong. Setting the flag strips the border off of TexImage calls,
3245 * providing "fast but wrong" at significantly reduced driver complexity.
3247 * Texture borders are deprecated in GL 3.0.
3249 GLboolean StripTextureBorder
;
3252 * For drivers which can do a better job at eliminating unused uniforms
3253 * than the GLSL compiler.
3255 * XXX Remove these as soon as a better solution is available.
3257 GLboolean GLSLSkipStrictMaxUniformLimitCheck
;
3260 * Force software support for primitive restart in the VBO module.
3262 GLboolean PrimitiveRestartInSoftware
;
3265 * Always use the GetTransformFeedbackVertexCount() driver hook, rather
3266 * than passing the transform feedback object to the drawing function.
3268 GLboolean AlwaysUseGetTransformFeedbackVertexCount
;
3270 /** GL_ARB_map_buffer_alignment */
3271 GLuint MinMapBufferAlignment
;
3274 * Disable varying packing. This is out of spec, but potentially useful
3275 * for older platforms that supports a limited number of texture
3276 * indirections--on these platforms, unpacking the varyings in the fragment
3277 * shader increases the number of texture indirections by 1, which might
3278 * make some shaders not executable at all.
3280 * Drivers that support transform feedback must set this value to GL_FALSE.
3282 GLboolean DisableVaryingPacking
;
3285 * Maximum value supported for an index in DrawElements and friends.
3287 * This must be at least (1ull<<24)-1. The default value is
3290 * \since ES 3.0 or GL_ARB_ES3_compatibility
3291 * \sa _mesa_init_constants
3293 GLuint64 MaxElementIndex
;
3296 * Disable interpretation of line continuations (lines ending with a
3297 * backslash character ('\') in GLSL source.
3299 GLboolean DisableGLSLLineContinuations
;
3301 /** GL_ARB_texture_multisample */
3302 GLint MaxColorTextureSamples
;
3303 GLint MaxDepthTextureSamples
;
3304 GLint MaxIntegerSamples
;
3306 /** GL_ARB_shader_atomic_counters */
3307 GLuint MaxAtomicBufferBindings
;
3308 GLuint MaxAtomicBufferSize
;
3309 GLuint MaxCombinedAtomicBuffers
;
3310 GLuint MaxCombinedAtomicCounters
;
3312 /** GL_ARB_vertex_attrib_binding */
3313 GLint MaxVertexAttribRelativeOffset
;
3314 GLint MaxVertexAttribBindings
;
3319 * Enable flag for each OpenGL extension. Different device drivers will
3320 * enable different extensions at runtime.
3322 struct gl_extensions
3324 GLboolean dummy
; /* don't remove this! */
3325 GLboolean dummy_true
; /* Set true by _mesa_init_extensions(). */
3326 GLboolean dummy_false
; /* Set false by _mesa_init_extensions(). */
3327 GLboolean ANGLE_texture_compression_dxt
;
3328 GLboolean ARB_ES2_compatibility
;
3329 GLboolean ARB_ES3_compatibility
;
3330 GLboolean ARB_base_instance
;
3331 GLboolean ARB_blend_func_extended
;
3332 GLboolean ARB_color_buffer_float
;
3333 GLboolean ARB_conservative_depth
;
3334 GLboolean ARB_depth_buffer_float
;
3335 GLboolean ARB_depth_clamp
;
3336 GLboolean ARB_depth_texture
;
3337 GLboolean ARB_draw_buffers_blend
;
3338 GLboolean ARB_draw_elements_base_vertex
;
3339 GLboolean ARB_draw_indirect
;
3340 GLboolean ARB_draw_instanced
;
3341 GLboolean ARB_fragment_coord_conventions
;
3342 GLboolean ARB_fragment_program
;
3343 GLboolean ARB_fragment_program_shadow
;
3344 GLboolean ARB_fragment_shader
;
3345 GLboolean ARB_framebuffer_object
;
3346 GLboolean ARB_explicit_attrib_location
;
3347 GLboolean ARB_geometry_shader4
;
3348 GLboolean ARB_gpu_shader5
;
3349 GLboolean ARB_half_float_pixel
;
3350 GLboolean ARB_half_float_vertex
;
3351 GLboolean ARB_instanced_arrays
;
3352 GLboolean ARB_internalformat_query
;
3353 GLboolean ARB_map_buffer_alignment
;
3354 GLboolean ARB_map_buffer_range
;
3355 GLboolean ARB_occlusion_query
;
3356 GLboolean ARB_occlusion_query2
;
3357 GLboolean ARB_point_sprite
;
3358 GLboolean ARB_sample_shading
;
3359 GLboolean ARB_seamless_cube_map
;
3360 GLboolean ARB_shader_atomic_counters
;
3361 GLboolean ARB_shader_bit_encoding
;
3362 GLboolean ARB_shader_stencil_export
;
3363 GLboolean ARB_shader_texture_lod
;
3364 GLboolean ARB_shading_language_packing
;
3365 GLboolean ARB_shading_language_420pack
;
3366 GLboolean ARB_shadow
;
3368 GLboolean ARB_texture_border_clamp
;
3369 GLboolean ARB_texture_buffer_object
;
3370 GLboolean ARB_texture_buffer_object_rgb32
;
3371 GLboolean ARB_texture_buffer_range
;
3372 GLboolean ARB_texture_compression_rgtc
;
3373 GLboolean ARB_texture_cube_map
;
3374 GLboolean ARB_texture_cube_map_array
;
3375 GLboolean ARB_texture_env_combine
;
3376 GLboolean ARB_texture_env_crossbar
;
3377 GLboolean ARB_texture_env_dot3
;
3378 GLboolean ARB_texture_float
;
3379 GLboolean ARB_texture_gather
;
3380 GLboolean ARB_texture_mirror_clamp_to_edge
;
3381 GLboolean ARB_texture_multisample
;
3382 GLboolean ARB_texture_non_power_of_two
;
3383 GLboolean ARB_texture_query_levels
;
3384 GLboolean ARB_texture_query_lod
;
3385 GLboolean ARB_texture_rg
;
3386 GLboolean ARB_texture_rgb10_a2ui
;
3387 GLboolean ARB_texture_view
;
3388 GLboolean ARB_timer_query
;
3389 GLboolean ARB_transform_feedback2
;
3390 GLboolean ARB_transform_feedback3
;
3391 GLboolean ARB_transform_feedback_instanced
;
3392 GLboolean ARB_uniform_buffer_object
;
3393 GLboolean ARB_vertex_program
;
3394 GLboolean ARB_vertex_shader
;
3395 GLboolean ARB_vertex_type_10f_11f_11f_rev
;
3396 GLboolean ARB_vertex_type_2_10_10_10_rev
;
3397 GLboolean EXT_blend_color
;
3398 GLboolean EXT_blend_equation_separate
;
3399 GLboolean EXT_blend_func_separate
;
3400 GLboolean EXT_blend_minmax
;
3401 GLboolean EXT_depth_bounds_test
;
3402 GLboolean EXT_draw_buffers2
;
3403 GLboolean EXT_framebuffer_blit
;
3404 GLboolean EXT_framebuffer_multisample
;
3405 GLboolean EXT_framebuffer_multisample_blit_scaled
;
3406 GLboolean EXT_framebuffer_sRGB
;
3407 GLboolean EXT_gpu_program_parameters
;
3408 GLboolean EXT_gpu_shader4
;
3409 GLboolean EXT_packed_float
;
3410 GLboolean EXT_pixel_buffer_object
;
3411 GLboolean EXT_point_parameters
;
3412 GLboolean EXT_provoking_vertex
;
3413 GLboolean EXT_separate_shader_objects
;
3414 GLboolean EXT_shader_integer_mix
;
3415 GLboolean EXT_stencil_two_side
;
3416 GLboolean EXT_texture3D
;
3417 GLboolean EXT_texture_array
;
3418 GLboolean EXT_texture_compression_latc
;
3419 GLboolean EXT_texture_compression_s3tc
;
3420 GLboolean EXT_texture_env_dot3
;
3421 GLboolean EXT_texture_filter_anisotropic
;
3422 GLboolean EXT_texture_integer
;
3423 GLboolean EXT_texture_mirror_clamp
;
3424 GLboolean EXT_texture_shared_exponent
;
3425 GLboolean EXT_texture_snorm
;
3426 GLboolean EXT_texture_sRGB
;
3427 GLboolean EXT_texture_sRGB_decode
;
3428 GLboolean EXT_texture_swizzle
;
3429 GLboolean EXT_transform_feedback
;
3430 GLboolean EXT_timer_query
;
3431 GLboolean EXT_vertex_array_bgra
;
3432 GLboolean OES_standard_derivatives
;
3433 /* vendor extensions */
3434 GLboolean AMD_performance_monitor
;
3435 GLboolean AMD_seamless_cubemap_per_texture
;
3436 GLboolean AMD_shader_trinary_minmax
;
3437 GLboolean AMD_vertex_shader_layer
;
3438 GLboolean APPLE_object_purgeable
;
3439 GLboolean ATI_envmap_bumpmap
;
3440 GLboolean ATI_texture_compression_3dc
;
3441 GLboolean ATI_texture_mirror_once
;
3442 GLboolean ATI_texture_env_combine3
;
3443 GLboolean ATI_fragment_shader
;
3444 GLboolean ATI_separate_stencil
;
3445 GLboolean MESA_pack_invert
;
3446 GLboolean MESA_ycbcr_texture
;
3447 GLboolean NV_conditional_render
;
3448 GLboolean NV_fog_distance
;
3449 GLboolean NV_fragment_program_option
;
3450 GLboolean NV_point_sprite
;
3451 GLboolean NV_primitive_restart
;
3452 GLboolean NV_texture_barrier
;
3453 GLboolean NV_texture_env_combine4
;
3454 GLboolean NV_texture_rectangle
;
3455 GLboolean NV_vdpau_interop
;
3456 GLboolean TDFX_texture_compression_FXT1
;
3457 GLboolean OES_EGL_image
;
3458 GLboolean OES_draw_texture
;
3459 GLboolean OES_depth_texture_cube_map
;
3460 GLboolean OES_EGL_image_external
;
3461 GLboolean OES_compressed_ETC1_RGB8_texture
;
3462 GLboolean extension_sentinel
;
3463 /** The extension string */
3464 const GLubyte
*String
;
3465 /** Number of supported extensions */
3471 * A stack of matrices (projection, modelview, color, texture, etc).
3473 struct gl_matrix_stack
3475 GLmatrix
*Top
; /**< points into Stack */
3476 GLmatrix
*Stack
; /**< array [MaxDepth] of GLmatrix */
3477 GLuint Depth
; /**< 0 <= Depth < MaxDepth */
3478 GLuint MaxDepth
; /**< size of Stack[] array */
3479 GLuint DirtyFlag
; /**< _NEW_MODELVIEW or _NEW_PROJECTION, for example */
3484 * \name Bits for image transfer operations
3485 * \sa __struct gl_contextRec::ImageTransferState.
3488 #define IMAGE_SCALE_BIAS_BIT 0x1
3489 #define IMAGE_SHIFT_OFFSET_BIT 0x2
3490 #define IMAGE_MAP_COLOR_BIT 0x4
3491 #define IMAGE_CLAMP_BIT 0x800
3494 /** Pixel Transfer ops */
3495 #define IMAGE_BITS (IMAGE_SCALE_BIAS_BIT | \
3496 IMAGE_SHIFT_OFFSET_BIT | \
3497 IMAGE_MAP_COLOR_BIT)
3500 * \name Bits to indicate what state has changed.
3503 #define _NEW_MODELVIEW (1 << 0) /**< gl_context::ModelView */
3504 #define _NEW_PROJECTION (1 << 1) /**< gl_context::Projection */
3505 #define _NEW_TEXTURE_MATRIX (1 << 2) /**< gl_context::TextureMatrix */
3506 #define _NEW_COLOR (1 << 3) /**< gl_context::Color */
3507 #define _NEW_DEPTH (1 << 4) /**< gl_context::Depth */
3508 #define _NEW_EVAL (1 << 5) /**< gl_context::Eval, EvalMap */
3509 #define _NEW_FOG (1 << 6) /**< gl_context::Fog */
3510 #define _NEW_HINT (1 << 7) /**< gl_context::Hint */
3511 #define _NEW_LIGHT (1 << 8) /**< gl_context::Light */
3512 #define _NEW_LINE (1 << 9) /**< gl_context::Line */
3513 #define _NEW_PIXEL (1 << 10) /**< gl_context::Pixel */
3514 #define _NEW_POINT (1 << 11) /**< gl_context::Point */
3515 #define _NEW_POLYGON (1 << 12) /**< gl_context::Polygon */
3516 #define _NEW_POLYGONSTIPPLE (1 << 13) /**< gl_context::PolygonStipple */
3517 #define _NEW_SCISSOR (1 << 14) /**< gl_context::Scissor */
3518 #define _NEW_STENCIL (1 << 15) /**< gl_context::Stencil */
3519 #define _NEW_TEXTURE (1 << 16) /**< gl_context::Texture */
3520 #define _NEW_TRANSFORM (1 << 17) /**< gl_context::Transform */
3521 #define _NEW_VIEWPORT (1 << 18) /**< gl_context::Viewport */
3522 /* gap, re-use for core Mesa state only; use ctx->DriverFlags otherwise */
3523 #define _NEW_ARRAY (1 << 20) /**< gl_context::Array */
3524 #define _NEW_RENDERMODE (1 << 21) /**< gl_context::RenderMode, etc */
3525 #define _NEW_BUFFERS (1 << 22) /**< gl_context::Visual, DrawBuffer, */
3526 #define _NEW_CURRENT_ATTRIB (1 << 23) /**< gl_context::Current */
3527 #define _NEW_MULTISAMPLE (1 << 24) /**< gl_context::Multisample */
3528 #define _NEW_TRACK_MATRIX (1 << 25) /**< gl_context::VertexProgram */
3529 #define _NEW_PROGRAM (1 << 26) /**< New program/shader state */
3530 #define _NEW_PROGRAM_CONSTANTS (1 << 27)
3531 #define _NEW_BUFFER_OBJECT (1 << 28)
3532 #define _NEW_FRAG_CLAMP (1 << 29)
3533 /* gap, re-use for core Mesa state only; use ctx->DriverFlags otherwise */
3534 #define _NEW_VARYING_VP_INPUTS (1 << 31) /**< gl_context::varying_vp_inputs */
3540 * Composite state flags
3543 #define _MESA_NEW_NEED_EYE_COORDS (_NEW_LIGHT | \
3549 #define _MESA_NEW_SEPARATE_SPECULAR (_NEW_LIGHT | \
3559 /* This has to be included here. */
3564 * Display list flags.
3565 * Strictly this is a tnl-private concept, but it doesn't seem
3566 * worthwhile adding a tnl private structure just to hold this one bit
3569 #define DLIST_DANGLING_REFS 0x1
3572 /** Opaque declaration of display list payload data type */
3573 union gl_dlist_node
;
3577 * Provide a location where information about a display list can be
3578 * collected. Could be extended with driverPrivate structures,
3579 * etc. in the future.
3581 struct gl_display_list
3584 GLchar
*Label
; /**< GL_KHR_debug */
3585 GLbitfield Flags
; /**< DLIST_x flags */
3586 /** The dlist commands are in a linked list of nodes */
3587 union gl_dlist_node
*Head
;
3592 * State used during display list compilation and execution.
3594 struct gl_dlist_state
3596 GLuint CallDepth
; /**< Current recursion calling depth */
3598 struct gl_display_list
*CurrentList
; /**< List currently being compiled */
3599 union gl_dlist_node
*CurrentBlock
; /**< Pointer to current block of nodes */
3600 GLuint CurrentPos
; /**< Index into current block of nodes */
3602 GLvertexformat ListVtxfmt
;
3604 GLubyte ActiveAttribSize
[VERT_ATTRIB_MAX
];
3605 GLfloat CurrentAttrib
[VERT_ATTRIB_MAX
][4];
3607 GLubyte ActiveMaterialSize
[MAT_ATTRIB_MAX
];
3608 GLfloat CurrentMaterial
[MAT_ATTRIB_MAX
][4];
3611 /* State known to have been set by the currently-compiling display
3612 * list. Used to eliminate some redundant state changes.
3620 * These are a mapping of the GL_ARB_debug_output/GL_KHR_debug enums
3621 * to small enums suitable for use as an array index.
3624 enum mesa_debug_source
{
3625 MESA_DEBUG_SOURCE_API
,
3626 MESA_DEBUG_SOURCE_WINDOW_SYSTEM
,
3627 MESA_DEBUG_SOURCE_SHADER_COMPILER
,
3628 MESA_DEBUG_SOURCE_THIRD_PARTY
,
3629 MESA_DEBUG_SOURCE_APPLICATION
,
3630 MESA_DEBUG_SOURCE_OTHER
,
3631 MESA_DEBUG_SOURCE_COUNT
3634 enum mesa_debug_type
{
3635 MESA_DEBUG_TYPE_ERROR
,
3636 MESA_DEBUG_TYPE_DEPRECATED
,
3637 MESA_DEBUG_TYPE_UNDEFINED
,
3638 MESA_DEBUG_TYPE_PORTABILITY
,
3639 MESA_DEBUG_TYPE_PERFORMANCE
,
3640 MESA_DEBUG_TYPE_OTHER
,
3641 MESA_DEBUG_TYPE_MARKER
,
3642 MESA_DEBUG_TYPE_PUSH_GROUP
,
3643 MESA_DEBUG_TYPE_POP_GROUP
,
3644 MESA_DEBUG_TYPE_COUNT
3647 enum mesa_debug_severity
{
3648 MESA_DEBUG_SEVERITY_LOW
,
3649 MESA_DEBUG_SEVERITY_MEDIUM
,
3650 MESA_DEBUG_SEVERITY_HIGH
,
3651 MESA_DEBUG_SEVERITY_NOTIFICATION
,
3652 MESA_DEBUG_SEVERITY_COUNT
3658 * An error, warning, or other piece of debug information for an application
3659 * to consume via GL_ARB_debug_output/GL_KHR_debug.
3663 enum mesa_debug_source source
;
3664 enum mesa_debug_type type
;
3666 enum mesa_debug_severity severity
;
3671 struct gl_debug_namespace
3673 struct _mesa_HashTable
*IDs
;
3674 unsigned ZeroID
; /* a HashTable won't take zero, so store its state here */
3675 /** lists of IDs in the hash table at each severity */
3676 struct simple_node Severity
[MESA_DEBUG_SEVERITY_COUNT
];
3679 struct gl_debug_state
3681 GLDEBUGPROC Callback
;
3682 const void *CallbackData
;
3683 GLboolean SyncOutput
;
3684 GLboolean DebugOutput
;
3685 GLboolean ARBCallback
; /* Used to track if current callback is of type ARB_debug_output or KHR_debug */
3686 GLboolean Defaults
[MAX_DEBUG_GROUP_STACK_DEPTH
][MESA_DEBUG_SEVERITY_COUNT
][MESA_DEBUG_SOURCE_COUNT
][MESA_DEBUG_TYPE_COUNT
];
3687 struct gl_debug_namespace Namespaces
[MAX_DEBUG_GROUP_STACK_DEPTH
][MESA_DEBUG_SOURCE_COUNT
][MESA_DEBUG_TYPE_COUNT
];
3688 struct gl_debug_msg Log
[MAX_DEBUG_LOGGED_MESSAGES
];
3689 struct gl_debug_msg DebugGroupMsgs
[MAX_DEBUG_GROUP_STACK_DEPTH
];
3690 GLint GroupStackDepth
;
3693 GLint NextMsgLength
; /* redundant, but copied here from Log[NextMsg].length
3694 for the sake of the offsetof() code in get.c */
3698 * Enum for the OpenGL APIs we know about and may support.
3700 * NOTE: This must match the api_enum table in
3701 * src/mesa/main/get_hash_generator.py
3705 API_OPENGL_COMPAT
, /* legacy / compatibility contexts */
3709 API_OPENGL_LAST
= API_OPENGL_CORE
3713 * Driver-specific state flags.
3715 * These are or'd with gl_context::NewDriverState to notify a driver about
3716 * a state change. The driver sets the flags at context creation and
3717 * the meaning of the bits set is opaque to core Mesa.
3719 struct gl_driver_flags
3721 /** gl_context::Array::_DrawArrays (vertex array state) */
3722 GLbitfield NewArray
;
3724 /** gl_context::TransformFeedback::CurrentObject */
3725 GLbitfield NewTransformFeedback
;
3727 /** gl_context::RasterDiscard */
3728 GLbitfield NewRasterizerDiscard
;
3731 * gl_context::UniformBufferBindings
3732 * gl_shader_program::UniformBlocks
3734 GLbitfield NewUniformBuffer
;
3737 * gl_context::AtomicBufferBindings
3739 GLbitfield NewAtomicBuffer
;
3742 struct gl_uniform_buffer_binding
3744 struct gl_buffer_object
*BufferObject
;
3745 /** Start of uniform block data in the buffer */
3747 /** Size of data allowed to be referenced from the buffer (in bytes) */
3750 * glBindBufferBase() indicates that the Size should be ignored and only
3751 * limited by the current size of the BufferObject.
3753 GLboolean AutomaticSize
;
3757 * Binding point for an atomic counter buffer object.
3759 struct gl_atomic_buffer_binding
3761 struct gl_buffer_object
*BufferObject
;
3767 * Mesa rendering context.
3769 * This is the central context data structure for Mesa. Almost all
3770 * OpenGL state is contained in this structure.
3771 * Think of this as a base class from which device drivers will derive
3776 /** State possibly shared with other contexts in the address space */
3777 struct gl_shared_state
*Shared
;
3779 /** \name API function pointer tables */
3783 * The current dispatch table for non-displaylist-saving execution, either
3784 * BeginEnd or OutsideBeginEnd
3786 struct _glapi_table
*Exec
;
3788 * The normal dispatch table for non-displaylist-saving, non-begin/end
3790 struct _glapi_table
*OutsideBeginEnd
;
3791 /** The dispatch table used between glNewList() and glEndList() */
3792 struct _glapi_table
*Save
;
3794 * The dispatch table used between glBegin() and glEnd() (outside of a
3795 * display list). Only valid functions between those two are set, which is
3796 * mostly just the set in a GLvertexformat struct.
3798 struct _glapi_table
*BeginEnd
;
3800 * Tracks the current dispatch table out of the 3 above, so that it can be
3801 * re-set on glXMakeCurrent().
3803 struct _glapi_table
*CurrentDispatch
;
3806 struct gl_config Visual
;
3807 struct gl_framebuffer
*DrawBuffer
; /**< buffer for writing */
3808 struct gl_framebuffer
*ReadBuffer
; /**< buffer for reading */
3809 struct gl_framebuffer
*WinSysDrawBuffer
; /**< set with MakeCurrent */
3810 struct gl_framebuffer
*WinSysReadBuffer
; /**< set with MakeCurrent */
3813 * Device driver function pointer table
3815 struct dd_function_table Driver
;
3817 /** Core/Driver constants */
3818 struct gl_constants Const
;
3820 /** \name The various 4x4 matrix stacks */
3822 struct gl_matrix_stack ModelviewMatrixStack
;
3823 struct gl_matrix_stack ProjectionMatrixStack
;
3824 struct gl_matrix_stack TextureMatrixStack
[MAX_TEXTURE_UNITS
];
3825 struct gl_matrix_stack ProgramMatrixStack
[MAX_PROGRAM_MATRICES
];
3826 struct gl_matrix_stack
*CurrentStack
; /**< Points to one of the above stacks */
3829 /** Combined modelview and projection matrix */
3830 GLmatrix _ModelProjectMatrix
;
3832 /** \name Display lists */
3833 struct gl_dlist_state ListState
;
3835 GLboolean ExecuteFlag
; /**< Execute GL commands? */
3836 GLboolean CompileFlag
; /**< Compile GL commands into display list? */
3838 /** Extension information */
3839 struct gl_extensions Extensions
;
3841 /** GL version integer, for example 31 for GL 3.1, or 20 for GLES 2.0. */
3843 char *VersionString
;
3845 /** \name State attribute stack (for glPush/PopAttrib) */
3847 GLuint AttribStackDepth
;
3848 struct gl_attrib_node
*AttribStack
[MAX_ATTRIB_STACK_DEPTH
];
3851 /** \name Renderer attribute groups
3853 * We define a struct for each attribute group to make pushing and popping
3854 * attributes easy. Also it's a good organization.
3857 struct gl_accum_attrib Accum
; /**< Accum buffer attributes */
3858 struct gl_colorbuffer_attrib Color
; /**< Color buffer attributes */
3859 struct gl_current_attrib Current
; /**< Current attributes */
3860 struct gl_depthbuffer_attrib Depth
; /**< Depth buffer attributes */
3861 struct gl_eval_attrib Eval
; /**< Eval attributes */
3862 struct gl_fog_attrib Fog
; /**< Fog attributes */
3863 struct gl_hint_attrib Hint
; /**< Hint attributes */
3864 struct gl_light_attrib Light
; /**< Light attributes */
3865 struct gl_line_attrib Line
; /**< Line attributes */
3866 struct gl_list_attrib List
; /**< List attributes */
3867 struct gl_multisample_attrib Multisample
;
3868 struct gl_pixel_attrib Pixel
; /**< Pixel attributes */
3869 struct gl_point_attrib Point
; /**< Point attributes */
3870 struct gl_polygon_attrib Polygon
; /**< Polygon attributes */
3871 GLuint PolygonStipple
[32]; /**< Polygon stipple */
3872 struct gl_scissor_attrib Scissor
; /**< Scissor attributes */
3873 struct gl_stencil_attrib Stencil
; /**< Stencil buffer attributes */
3874 struct gl_texture_attrib Texture
; /**< Texture attributes */
3875 struct gl_transform_attrib Transform
; /**< Transformation attributes */
3876 struct gl_viewport_attrib Viewport
; /**< Viewport attributes */
3879 /** \name Client attribute stack */
3881 GLuint ClientAttribStackDepth
;
3882 struct gl_attrib_node
*ClientAttribStack
[MAX_CLIENT_ATTRIB_STACK_DEPTH
];
3885 /** \name Client attribute groups */
3887 struct gl_array_attrib Array
; /**< Vertex arrays */
3888 struct gl_pixelstore_attrib Pack
; /**< Pixel packing */
3889 struct gl_pixelstore_attrib Unpack
; /**< Pixel unpacking */
3890 struct gl_pixelstore_attrib DefaultPacking
; /**< Default params */
3893 /** \name Other assorted state (not pushed/popped on attribute stack) */
3895 struct gl_pixelmaps PixelMaps
;
3897 struct gl_evaluators EvalMap
; /**< All evaluators */
3898 struct gl_feedback Feedback
; /**< Feedback */
3899 struct gl_selection Select
; /**< Selection */
3901 struct gl_program_state Program
; /**< general program state */
3902 struct gl_vertex_program_state VertexProgram
;
3903 struct gl_fragment_program_state FragmentProgram
;
3904 struct gl_geometry_program_state GeometryProgram
;
3905 struct gl_ati_fragment_shader_state ATIFragmentShader
;
3907 struct gl_shader_state Shader
; /**< GLSL shader object state */
3908 struct gl_shader_compiler_options ShaderCompilerOptions
[MESA_SHADER_STAGES
];
3910 struct gl_query_state Query
; /**< occlusion, timer queries */
3912 struct gl_transform_feedback_state TransformFeedback
;
3914 struct gl_perf_monitor_state PerfMonitor
;
3916 struct gl_buffer_object
*DrawIndirectBuffer
; /** < GL_ARB_draw_indirect */
3918 struct gl_buffer_object
*CopyReadBuffer
; /**< GL_ARB_copy_buffer */
3919 struct gl_buffer_object
*CopyWriteBuffer
; /**< GL_ARB_copy_buffer */
3922 * Current GL_ARB_uniform_buffer_object binding referenced by
3923 * GL_UNIFORM_BUFFER target for glBufferData, glMapBuffer, etc.
3925 struct gl_buffer_object
*UniformBuffer
;
3928 * Array of uniform buffers for GL_ARB_uniform_buffer_object and GL 3.1.
3929 * This is set up using glBindBufferRange() or glBindBufferBase(). They are
3930 * associated with uniform blocks by glUniformBlockBinding()'s state in the
3933 struct gl_uniform_buffer_binding
3934 UniformBufferBindings
[MAX_COMBINED_UNIFORM_BUFFERS
];
3937 * Object currently associated with the GL_ATOMIC_COUNTER_BUFFER
3940 struct gl_buffer_object
*AtomicBuffer
;
3943 * Array of atomic counter buffer binding points.
3945 struct gl_atomic_buffer_binding
3946 AtomicBufferBindings
[MAX_COMBINED_ATOMIC_BUFFERS
];
3950 struct gl_meta_state
*Meta
; /**< for "meta" operations */
3952 /* GL_EXT_framebuffer_object */
3953 struct gl_renderbuffer
*CurrentRenderbuffer
;
3955 GLenum ErrorValue
; /**< Last error code */
3958 * Recognize and silence repeated error debug messages in buggy apps.
3960 const char *ErrorDebugFmtString
;
3961 GLuint ErrorDebugCount
;
3963 /* GL_ARB_debug_output/GL_KHR_debug */
3964 struct gl_debug_state Debug
;
3966 GLenum RenderMode
; /**< either GL_RENDER, GL_SELECT, GL_FEEDBACK */
3967 GLbitfield NewState
; /**< bitwise-or of _NEW_* flags */
3968 GLbitfield NewDriverState
;/**< bitwise-or of flags from DriverFlags */
3970 struct gl_driver_flags DriverFlags
;
3972 GLboolean ViewportInitialized
; /**< has viewport size been initialized? */
3974 GLbitfield64 varying_vp_inputs
; /**< mask of VERT_BIT_* flags */
3976 /** \name Derived state */
3977 GLbitfield _ImageTransferState
;/**< bitwise-or of IMAGE_*_BIT flags */
3978 GLfloat _EyeZDir
[3];
3979 GLfloat _ModelViewInvScale
;
3980 GLboolean _NeedEyeCoords
;
3981 GLboolean _ForceEyeCoords
;
3983 GLuint TextureStateTimestamp
; /**< detect changes to shared state */
3985 struct gl_list_extensions
*ListExt
; /**< driver dlist extensions */
3987 /** \name For debugging/development only */
3989 GLboolean FirstTimeCurrent
;
3992 /** software compression/decompression supported or not */
3993 GLboolean Mesa_DXTn
;
3995 GLboolean TextureFormatSupported
[MESA_FORMAT_COUNT
];
3997 GLboolean RasterDiscard
; /**< GL_RASTERIZER_DISCARD */
4000 * \name Hooks for module contexts.
4002 * These will eventually live in the driver or elsewhere.
4005 void *swrast_context
;
4006 void *swsetup_context
;
4007 void *swtnl_context
;
4008 struct vbo_context
*vbo_context
;
4009 struct st_context
*st
;
4014 * \name NV_vdpau_interop
4017 const void *vdpDevice
;
4018 const void *vdpGetProcAddress
;
4019 struct set
*vdpSurfaces
;
4023 * Has this context observed a GPU reset in any context in the share group?
4025 * Once this field becomes true, it is never reset to false.
4027 GLboolean ShareGroupReset
;
4032 extern int MESA_VERBOSE
;
4033 extern int MESA_DEBUG_FLAGS
;
4034 # define MESA_FUNCTION __FUNCTION__
4036 # define MESA_VERBOSE 0
4037 # define MESA_DEBUG_FLAGS 0
4038 # define MESA_FUNCTION "a function"
4045 /** The MESA_VERBOSE var is a bitmask of these flags */
4048 VERBOSE_VARRAY
= 0x0001,
4049 VERBOSE_TEXTURE
= 0x0002,
4050 VERBOSE_MATERIAL
= 0x0004,
4051 VERBOSE_PIPELINE
= 0x0008,
4052 VERBOSE_DRIVER
= 0x0010,
4053 VERBOSE_STATE
= 0x0020,
4054 VERBOSE_API
= 0x0040,
4055 VERBOSE_DISPLAY_LIST
= 0x0100,
4056 VERBOSE_LIGHTING
= 0x0200,
4057 VERBOSE_PRIMS
= 0x0400,
4058 VERBOSE_VERTS
= 0x0800,
4059 VERBOSE_DISASSEM
= 0x1000,
4060 VERBOSE_DRAW
= 0x2000,
4061 VERBOSE_SWAPBUFFERS
= 0x4000
4065 /** The MESA_DEBUG_FLAGS var is a bitmask of these flags */
4068 DEBUG_SILENT
= (1 << 0),
4069 DEBUG_ALWAYS_FLUSH
= (1 << 1),
4070 DEBUG_INCOMPLETE_TEXTURE
= (1 << 2),
4071 DEBUG_INCOMPLETE_FBO
= (1 << 3)
4080 #endif /* MTYPES_H */