2 * Mesa 3-D graphics library
4 * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
5 * Copyright (C) 2009 VMware, Inc. All Rights Reserved.
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the "Software"),
9 * to deal in the Software without restriction, including without limitation
10 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11 * and/or sell copies of the Software, and to permit persons to whom the
12 * Software is furnished to do so, subject to the following conditions:
14 * The above copyright notice and this permission notice shall be included
15 * in all copies or substantial portions of the Software.
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
21 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
22 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
23 * OTHER DEALINGS IN THE SOFTWARE.
28 * Main Mesa data structures.
30 * Please try to mark derived values with a leading underscore ('_').
37 #include <stdint.h> /* uint32_t */
39 #include "c11/threads.h"
41 #include "main/glheader.h"
42 #include "main/config.h"
43 #include "glapi/glapi.h"
44 #include "math/m_matrix.h" /* GLmatrix */
45 #include "compiler/shader_enums.h"
46 #include "compiler/shader_info.h"
47 #include "main/formats.h" /* MESA_FORMAT_COUNT */
48 #include "compiler/glsl/list.h"
49 #include "util/bitscan.h"
50 #include "util/simple_mtx.h"
51 #include "util/u_dynarray.h"
59 /** Set a single bit */
60 #define BITFIELD_BIT(b) ((GLbitfield)1 << (b))
61 /** Set all bits up to excluding bit b */
62 #define BITFIELD_MASK(b) \
63 ((b) == 32 ? (~(GLbitfield)0) : BITFIELD_BIT(b) - 1)
64 /** Set count bits starting from bit b */
65 #define BITFIELD_RANGE(b, count) \
66 (BITFIELD_MASK((b) + (count)) & ~BITFIELD_MASK(b))
70 * \name 64-bit extension of GLbitfield.
73 typedef GLuint64 GLbitfield64
;
75 /** Set a single bit */
76 #define BITFIELD64_BIT(b) ((GLbitfield64)1 << (b))
77 /** Set all bits up to excluding bit b */
78 #define BITFIELD64_MASK(b) \
79 ((b) == 64 ? (~(GLbitfield64)0) : BITFIELD64_BIT(b) - 1)
80 /** Set count bits starting from bit b */
81 #define BITFIELD64_RANGE(b, count) \
82 (BITFIELD64_MASK((b) + (count)) & ~BITFIELD64_MASK(b))
86 * \name Some forward type declarations
89 struct _mesa_HashTable
;
90 struct gl_attrib_node
;
91 struct gl_list_extensions
;
93 struct gl_program_cache
;
94 struct gl_texture_object
;
95 struct gl_debug_state
;
98 struct gl_uniform_storage
;
99 struct prog_instruction
;
100 struct gl_program_parameter_list
;
107 /** Extra draw modes beyond GL_POINTS, GL_TRIANGLE_FAN, etc */
108 #define PRIM_MAX GL_PATCHES
109 #define PRIM_OUTSIDE_BEGIN_END (PRIM_MAX + 1)
110 #define PRIM_UNKNOWN (PRIM_MAX + 2)
113 * Determine if the given gl_varying_slot appears in the fragment shader.
115 static inline GLboolean
116 _mesa_varying_slot_in_fs(gl_varying_slot slot
)
119 case VARYING_SLOT_PSIZ
:
120 case VARYING_SLOT_BFC0
:
121 case VARYING_SLOT_BFC1
:
122 case VARYING_SLOT_EDGE
:
123 case VARYING_SLOT_CLIP_VERTEX
:
124 case VARYING_SLOT_LAYER
:
125 case VARYING_SLOT_TESS_LEVEL_OUTER
:
126 case VARYING_SLOT_TESS_LEVEL_INNER
:
127 case VARYING_SLOT_BOUNDING_BOX0
:
128 case VARYING_SLOT_BOUNDING_BOX1
:
136 * Indexes for all renderbuffers
140 /* the four standard color buffers */
148 /* optional aux buffer */
150 /* generic renderbuffers */
164 * Bit flags for all renderbuffers
166 #define BUFFER_BIT_FRONT_LEFT (1 << BUFFER_FRONT_LEFT)
167 #define BUFFER_BIT_BACK_LEFT (1 << BUFFER_BACK_LEFT)
168 #define BUFFER_BIT_FRONT_RIGHT (1 << BUFFER_FRONT_RIGHT)
169 #define BUFFER_BIT_BACK_RIGHT (1 << BUFFER_BACK_RIGHT)
170 #define BUFFER_BIT_AUX0 (1 << BUFFER_AUX0)
171 #define BUFFER_BIT_AUX1 (1 << BUFFER_AUX1)
172 #define BUFFER_BIT_AUX2 (1 << BUFFER_AUX2)
173 #define BUFFER_BIT_AUX3 (1 << BUFFER_AUX3)
174 #define BUFFER_BIT_DEPTH (1 << BUFFER_DEPTH)
175 #define BUFFER_BIT_STENCIL (1 << BUFFER_STENCIL)
176 #define BUFFER_BIT_ACCUM (1 << BUFFER_ACCUM)
177 #define BUFFER_BIT_COLOR0 (1 << BUFFER_COLOR0)
178 #define BUFFER_BIT_COLOR1 (1 << BUFFER_COLOR1)
179 #define BUFFER_BIT_COLOR2 (1 << BUFFER_COLOR2)
180 #define BUFFER_BIT_COLOR3 (1 << BUFFER_COLOR3)
181 #define BUFFER_BIT_COLOR4 (1 << BUFFER_COLOR4)
182 #define BUFFER_BIT_COLOR5 (1 << BUFFER_COLOR5)
183 #define BUFFER_BIT_COLOR6 (1 << BUFFER_COLOR6)
184 #define BUFFER_BIT_COLOR7 (1 << BUFFER_COLOR7)
187 * Mask of all the color buffer bits (but not accum).
189 #define BUFFER_BITS_COLOR (BUFFER_BIT_FRONT_LEFT | \
190 BUFFER_BIT_BACK_LEFT | \
191 BUFFER_BIT_FRONT_RIGHT | \
192 BUFFER_BIT_BACK_RIGHT | \
194 BUFFER_BIT_COLOR0 | \
195 BUFFER_BIT_COLOR1 | \
196 BUFFER_BIT_COLOR2 | \
197 BUFFER_BIT_COLOR3 | \
198 BUFFER_BIT_COLOR4 | \
199 BUFFER_BIT_COLOR5 | \
200 BUFFER_BIT_COLOR6 | \
203 /* Mask of bits for depth+stencil buffers */
204 #define BUFFER_BITS_DEPTH_STENCIL (BUFFER_BIT_DEPTH | BUFFER_BIT_STENCIL)
207 * Framebuffer configuration (aka visual / pixelformat)
208 * Note: some of these fields should be boolean, but it appears that
209 * code in drivers/dri/common/util.c requires int-sized fields.
215 GLuint doubleBufferMode
;
218 GLboolean haveAccumBuffer
;
219 GLboolean haveDepthBuffer
;
220 GLboolean haveStencilBuffer
;
222 GLint redBits
, greenBits
, blueBits
, alphaBits
; /* bits per comp */
223 GLuint redMask
, greenMask
, blueMask
, alphaMask
;
224 GLint rgbBits
; /* total bits for rgb */
225 GLint indexBits
; /* total bits for colorindex */
227 GLint accumRedBits
, accumGreenBits
, accumBlueBits
, accumAlphaBits
;
235 /* EXT_visual_rating / GLX 1.2 */
238 /* EXT_visual_info / GLX 1.2 */
239 GLint transparentPixel
;
240 /* colors are floats scaled to ints */
241 GLint transparentRed
, transparentGreen
, transparentBlue
, transparentAlpha
;
242 GLint transparentIndex
;
244 /* ARB_multisample / SGIS_multisample */
248 /* SGIX_pbuffer / GLX 1.3 */
249 GLint maxPbufferWidth
;
250 GLint maxPbufferHeight
;
251 GLint maxPbufferPixels
;
252 GLint optimalPbufferWidth
; /* Only for SGIX_pbuffer. */
253 GLint optimalPbufferHeight
; /* Only for SGIX_pbuffer. */
255 /* OML_swap_method */
258 /* EXT_texture_from_pixmap */
259 GLint bindToTextureRgb
;
260 GLint bindToTextureRgba
;
261 GLint bindToMipmapTexture
;
262 GLint bindToTextureTargets
;
265 /* EXT_framebuffer_sRGB */
271 * \name Bit flags used for updating material values.
274 #define MAT_ATTRIB_FRONT_AMBIENT 0
275 #define MAT_ATTRIB_BACK_AMBIENT 1
276 #define MAT_ATTRIB_FRONT_DIFFUSE 2
277 #define MAT_ATTRIB_BACK_DIFFUSE 3
278 #define MAT_ATTRIB_FRONT_SPECULAR 4
279 #define MAT_ATTRIB_BACK_SPECULAR 5
280 #define MAT_ATTRIB_FRONT_EMISSION 6
281 #define MAT_ATTRIB_BACK_EMISSION 7
282 #define MAT_ATTRIB_FRONT_SHININESS 8
283 #define MAT_ATTRIB_BACK_SHININESS 9
284 #define MAT_ATTRIB_FRONT_INDEXES 10
285 #define MAT_ATTRIB_BACK_INDEXES 11
286 #define MAT_ATTRIB_MAX 12
288 #define MAT_ATTRIB_AMBIENT(f) (MAT_ATTRIB_FRONT_AMBIENT+(f))
289 #define MAT_ATTRIB_DIFFUSE(f) (MAT_ATTRIB_FRONT_DIFFUSE+(f))
290 #define MAT_ATTRIB_SPECULAR(f) (MAT_ATTRIB_FRONT_SPECULAR+(f))
291 #define MAT_ATTRIB_EMISSION(f) (MAT_ATTRIB_FRONT_EMISSION+(f))
292 #define MAT_ATTRIB_SHININESS(f)(MAT_ATTRIB_FRONT_SHININESS+(f))
293 #define MAT_ATTRIB_INDEXES(f) (MAT_ATTRIB_FRONT_INDEXES+(f))
295 #define MAT_INDEX_AMBIENT 0
296 #define MAT_INDEX_DIFFUSE 1
297 #define MAT_INDEX_SPECULAR 2
299 #define MAT_BIT_FRONT_AMBIENT (1<<MAT_ATTRIB_FRONT_AMBIENT)
300 #define MAT_BIT_BACK_AMBIENT (1<<MAT_ATTRIB_BACK_AMBIENT)
301 #define MAT_BIT_FRONT_DIFFUSE (1<<MAT_ATTRIB_FRONT_DIFFUSE)
302 #define MAT_BIT_BACK_DIFFUSE (1<<MAT_ATTRIB_BACK_DIFFUSE)
303 #define MAT_BIT_FRONT_SPECULAR (1<<MAT_ATTRIB_FRONT_SPECULAR)
304 #define MAT_BIT_BACK_SPECULAR (1<<MAT_ATTRIB_BACK_SPECULAR)
305 #define MAT_BIT_FRONT_EMISSION (1<<MAT_ATTRIB_FRONT_EMISSION)
306 #define MAT_BIT_BACK_EMISSION (1<<MAT_ATTRIB_BACK_EMISSION)
307 #define MAT_BIT_FRONT_SHININESS (1<<MAT_ATTRIB_FRONT_SHININESS)
308 #define MAT_BIT_BACK_SHININESS (1<<MAT_ATTRIB_BACK_SHININESS)
309 #define MAT_BIT_FRONT_INDEXES (1<<MAT_ATTRIB_FRONT_INDEXES)
310 #define MAT_BIT_BACK_INDEXES (1<<MAT_ATTRIB_BACK_INDEXES)
313 #define FRONT_MATERIAL_BITS (MAT_BIT_FRONT_EMISSION | \
314 MAT_BIT_FRONT_AMBIENT | \
315 MAT_BIT_FRONT_DIFFUSE | \
316 MAT_BIT_FRONT_SPECULAR | \
317 MAT_BIT_FRONT_SHININESS | \
318 MAT_BIT_FRONT_INDEXES)
320 #define BACK_MATERIAL_BITS (MAT_BIT_BACK_EMISSION | \
321 MAT_BIT_BACK_AMBIENT | \
322 MAT_BIT_BACK_DIFFUSE | \
323 MAT_BIT_BACK_SPECULAR | \
324 MAT_BIT_BACK_SHININESS | \
325 MAT_BIT_BACK_INDEXES)
327 #define ALL_MATERIAL_BITS (FRONT_MATERIAL_BITS | BACK_MATERIAL_BITS)
336 GLfloat Attrib
[MAT_ATTRIB_MAX
][4];
344 #define LIGHT_SPOT 0x1
345 #define LIGHT_LOCAL_VIEWER 0x2
346 #define LIGHT_POSITIONAL 0x4
347 #define LIGHT_NEED_VERTICES (LIGHT_POSITIONAL|LIGHT_LOCAL_VIEWER)
352 * Light source state.
356 GLfloat Ambient
[4]; /**< ambient color */
357 GLfloat Diffuse
[4]; /**< diffuse color */
358 GLfloat Specular
[4]; /**< specular color */
359 GLfloat EyePosition
[4]; /**< position in eye coordinates */
360 GLfloat SpotDirection
[4]; /**< spotlight direction in eye coordinates */
361 GLfloat SpotExponent
;
362 GLfloat SpotCutoff
; /**< in degrees */
363 GLfloat _CosCutoff
; /**< = MAX(0, cos(SpotCutoff)) */
364 GLfloat ConstantAttenuation
;
365 GLfloat LinearAttenuation
;
366 GLfloat QuadraticAttenuation
;
367 GLboolean Enabled
; /**< On/off flag */
370 * \name Derived fields
373 GLbitfield _Flags
; /**< Mask of LIGHT_x bits defined above */
375 GLfloat _Position
[4]; /**< position in eye/obj coordinates */
376 GLfloat _VP_inf_norm
[3]; /**< Norm direction to infinite light */
377 GLfloat _h_inf_norm
[3]; /**< Norm( _VP_inf_norm + <0,0,1> ) */
378 GLfloat _NormSpotDirection
[4]; /**< normalized spotlight direction */
379 GLfloat _VP_inf_spot_attenuation
;
381 GLfloat _MatAmbient
[2][3]; /**< material ambient * light ambient */
382 GLfloat _MatDiffuse
[2][3]; /**< material diffuse * light diffuse */
383 GLfloat _MatSpecular
[2][3]; /**< material spec * light specular */
393 GLfloat Ambient
[4]; /**< ambient color */
394 GLboolean LocalViewer
; /**< Local (or infinite) view point? */
395 GLboolean TwoSide
; /**< Two (or one) sided lighting? */
396 GLenum ColorControl
; /**< either GL_SINGLE_COLOR
397 * or GL_SEPARATE_SPECULAR_COLOR */
402 * Accumulation buffer attribute group (GL_ACCUM_BUFFER_BIT)
404 struct gl_accum_attrib
406 GLfloat ClearColor
[4]; /**< Accumulation buffer clear color */
411 * Used for storing clear color, texture border color, etc.
412 * The float values are typically unclamped.
423 * Color buffer attribute group (GL_COLOR_BUFFER_BIT).
425 struct gl_colorbuffer_attrib
427 GLuint ClearIndex
; /**< Index for glClear */
428 union gl_color_union ClearColor
; /**< Color for glClear, unclamped */
429 GLuint IndexMask
; /**< Color index write mask */
430 GLubyte ColorMask
[MAX_DRAW_BUFFERS
][4]; /**< Each flag is 0xff or 0x0 */
432 GLenum DrawBuffer
[MAX_DRAW_BUFFERS
]; /**< Which buffer to draw into */
435 * \name alpha testing
438 GLboolean AlphaEnabled
; /**< Alpha test enabled flag */
439 GLenum AlphaFunc
; /**< Alpha test function */
440 GLfloat AlphaRefUnclamped
;
441 GLclampf AlphaRef
; /**< Alpha reference value */
448 GLbitfield BlendEnabled
; /**< Per-buffer blend enable flags */
450 /* NOTE: this does _not_ depend on fragment clamping or any other clamping
451 * control, only on the fixed-pointness of the render target.
452 * The query does however depend on fragment color clamping.
454 GLfloat BlendColorUnclamped
[4]; /**< Blending color */
455 GLfloat BlendColor
[4]; /**< Blending color */
459 GLenum SrcRGB
; /**< RGB blend source term */
460 GLenum DstRGB
; /**< RGB blend dest term */
461 GLenum SrcA
; /**< Alpha blend source term */
462 GLenum DstA
; /**< Alpha blend dest term */
463 GLenum EquationRGB
; /**< GL_ADD, GL_SUBTRACT, etc. */
464 GLenum EquationA
; /**< GL_ADD, GL_SUBTRACT, etc. */
466 * Set if any blend factor uses SRC1. Computed at the time blend factors
469 GLboolean _UsesDualSrc
;
470 } Blend
[MAX_DRAW_BUFFERS
];
471 /** Are the blend func terms currently different for each buffer/target? */
472 GLboolean _BlendFuncPerBuffer
;
473 /** Are the blend equations currently different for each buffer/target? */
474 GLboolean _BlendEquationPerBuffer
;
477 * Which advanced blending mode is in use (or BLEND_NONE).
479 * KHR_blend_equation_advanced only allows advanced blending with a single
480 * draw buffer, and NVX_blend_equation_advanced_multi_draw_buffer still
481 * requires all draw buffers to match, so we only need a single value.
483 enum gl_advanced_blend_mode _AdvancedBlendMode
;
485 /** Coherency requested via glEnable(GL_BLEND_ADVANCED_COHERENT_KHR)? */
493 GLboolean IndexLogicOpEnabled
; /**< Color index logic op enabled flag */
494 GLboolean ColorLogicOpEnabled
; /**< RGBA logic op enabled flag */
495 GLenum LogicOp
; /**< Logic operator */
499 GLboolean DitherFlag
; /**< Dither enable flag */
501 GLboolean _ClampFragmentColor
; /** < with GL_FIXED_ONLY_ARB resolved */
502 GLenum ClampFragmentColor
; /**< GL_TRUE, GL_FALSE or GL_FIXED_ONLY_ARB */
503 GLenum ClampReadColor
; /**< GL_TRUE, GL_FALSE or GL_FIXED_ONLY_ARB */
505 GLboolean sRGBEnabled
; /**< Framebuffer sRGB blending/updating requested */
510 * Current attribute group (GL_CURRENT_BIT).
512 struct gl_current_attrib
515 * \name Current vertex attributes (color, texcoords, etc).
516 * \note Values are valid only after FLUSH_VERTICES has been called.
517 * \note Index and Edgeflag current values are stored as floats in the
518 * SIX and SEVEN attribute slots.
519 * \note We need double storage for 64-bit vertex attributes
521 GLfloat Attrib
[VERT_ATTRIB_MAX
][4*2];
524 * \name Current raster position attributes (always up to date after a
527 GLfloat RasterPos
[4];
528 GLfloat RasterDistance
;
529 GLfloat RasterColor
[4];
530 GLfloat RasterSecondaryColor
[4];
531 GLfloat RasterTexCoords
[MAX_TEXTURE_COORD_UNITS
][4];
532 GLboolean RasterPosValid
;
537 * Depth buffer attribute group (GL_DEPTH_BUFFER_BIT).
539 struct gl_depthbuffer_attrib
541 GLenum Func
; /**< Function for depth buffer compare */
542 GLclampd Clear
; /**< Value to clear depth buffer to */
543 GLboolean Test
; /**< Depth buffering enabled flag */
544 GLboolean Mask
; /**< Depth buffer writable? */
545 GLboolean BoundsTest
; /**< GL_EXT_depth_bounds_test */
546 GLfloat BoundsMin
, BoundsMax
;/**< GL_EXT_depth_bounds_test */
551 * Evaluator attribute group (GL_EVAL_BIT).
553 struct gl_eval_attrib
559 GLboolean Map1Color4
;
561 GLboolean Map1Normal
;
562 GLboolean Map1TextureCoord1
;
563 GLboolean Map1TextureCoord2
;
564 GLboolean Map1TextureCoord3
;
565 GLboolean Map1TextureCoord4
;
566 GLboolean Map1Vertex3
;
567 GLboolean Map1Vertex4
;
568 GLboolean Map2Color4
;
570 GLboolean Map2Normal
;
571 GLboolean Map2TextureCoord1
;
572 GLboolean Map2TextureCoord2
;
573 GLboolean Map2TextureCoord3
;
574 GLboolean Map2TextureCoord4
;
575 GLboolean Map2Vertex3
;
576 GLboolean Map2Vertex4
;
577 GLboolean AutoNormal
;
581 * \name Map Grid endpoints and divisions and calculated du values
585 GLfloat MapGrid1u1
, MapGrid1u2
, MapGrid1du
;
586 GLint MapGrid2un
, MapGrid2vn
;
587 GLfloat MapGrid2u1
, MapGrid2u2
, MapGrid2du
;
588 GLfloat MapGrid2v1
, MapGrid2v2
, MapGrid2dv
;
594 * Compressed fog mode.
606 * Fog attribute group (GL_FOG_BIT).
610 GLboolean Enabled
; /**< Fog enabled flag */
611 GLboolean ColorSumEnabled
;
612 uint8_t _PackedMode
; /**< Fog mode as 2 bits */
613 uint8_t _PackedEnabledMode
; /**< Masked CompressedMode */
614 GLfloat ColorUnclamped
[4]; /**< Fog color */
615 GLfloat Color
[4]; /**< Fog color */
616 GLfloat Density
; /**< Density >= 0.0 */
617 GLfloat Start
; /**< Start distance in eye coords */
618 GLfloat End
; /**< End distance in eye coords */
619 GLfloat Index
; /**< Fog index */
620 GLenum Mode
; /**< Fog mode */
621 GLenum FogCoordinateSource
; /**< GL_EXT_fog_coord */
622 GLfloat _Scale
; /**< (End == Start) ? 1.0 : 1.0 / (End - Start) */
623 GLenum FogDistanceMode
; /**< GL_NV_fog_distance */
628 * Hint attribute group (GL_HINT_BIT).
630 * Values are always one of GL_FASTEST, GL_NICEST, or GL_DONT_CARE.
632 struct gl_hint_attrib
634 GLenum PerspectiveCorrection
;
637 GLenum PolygonSmooth
;
639 GLenum TextureCompression
; /**< GL_ARB_texture_compression */
640 GLenum GenerateMipmap
; /**< GL_SGIS_generate_mipmap */
641 GLenum FragmentShaderDerivative
; /**< GL_ARB_fragment_shader */
646 * Lighting attribute group (GL_LIGHT_BIT).
648 struct gl_light_attrib
650 struct gl_light Light
[MAX_LIGHTS
]; /**< Array of light sources */
651 struct gl_lightmodel Model
; /**< Lighting model */
654 * Front and back material values.
655 * Note: must call FLUSH_VERTICES() before using.
657 struct gl_material Material
;
659 GLboolean Enabled
; /**< Lighting enabled flag */
660 GLboolean ColorMaterialEnabled
;
662 GLenum ShadeModel
; /**< GL_FLAT or GL_SMOOTH */
663 GLenum ProvokingVertex
; /**< GL_EXT_provoking_vertex */
664 GLenum ColorMaterialFace
; /**< GL_FRONT, BACK or FRONT_AND_BACK */
665 GLenum ColorMaterialMode
; /**< GL_AMBIENT, GL_DIFFUSE, etc */
666 GLbitfield _ColorMaterialBitmask
; /**< bitmask formed from Face and Mode */
669 GLboolean _ClampVertexColor
;
670 GLenum ClampVertexColor
; /**< GL_TRUE, GL_FALSE, GL_FIXED_ONLY */
673 * Derived state for optimizations:
676 GLbitfield _EnabledLights
; /**< bitmask containing enabled lights */
678 GLboolean _NeedEyeCoords
;
679 GLboolean _NeedVertices
; /**< Use fast shader? */
681 GLfloat _BaseColor
[2][3];
687 * Line attribute group (GL_LINE_BIT).
689 struct gl_line_attrib
691 GLboolean SmoothFlag
; /**< GL_LINE_SMOOTH enabled? */
692 GLboolean StippleFlag
; /**< GL_LINE_STIPPLE enabled? */
693 GLushort StipplePattern
; /**< Stipple pattern */
694 GLint StippleFactor
; /**< Stipple repeat factor */
695 GLfloat Width
; /**< Line width */
700 * Display list attribute group (GL_LIST_BIT).
702 struct gl_list_attrib
709 * Multisample attribute group (GL_MULTISAMPLE_BIT).
711 struct gl_multisample_attrib
714 GLboolean SampleAlphaToCoverage
;
715 GLboolean SampleAlphaToOne
;
716 GLboolean SampleCoverage
;
717 GLboolean SampleCoverageInvert
;
718 GLboolean SampleShading
;
720 /* ARB_texture_multisample / GL3.2 additions */
721 GLboolean SampleMask
;
723 GLfloat SampleCoverageValue
; /**< In range [0, 1] */
724 GLfloat MinSampleShadingValue
; /**< In range [0, 1] */
726 /** The GL spec defines this as an array but >32x MSAA is madness */
727 GLbitfield SampleMaskValue
;
732 * A pixelmap (see glPixelMap)
737 GLfloat Map
[MAX_PIXEL_MAP_TABLE
];
742 * Collection of all pixelmaps
746 struct gl_pixelmap RtoR
; /**< i.e. GL_PIXEL_MAP_R_TO_R */
747 struct gl_pixelmap GtoG
;
748 struct gl_pixelmap BtoB
;
749 struct gl_pixelmap AtoA
;
750 struct gl_pixelmap ItoR
;
751 struct gl_pixelmap ItoG
;
752 struct gl_pixelmap ItoB
;
753 struct gl_pixelmap ItoA
;
754 struct gl_pixelmap ItoI
;
755 struct gl_pixelmap StoS
;
760 * Pixel attribute group (GL_PIXEL_MODE_BIT).
762 struct gl_pixel_attrib
764 GLenum ReadBuffer
; /**< source buffer for glRead/CopyPixels() */
766 /*--- Begin Pixel Transfer State ---*/
767 /* Fields are in the order in which they're applied... */
769 /** Scale & Bias (index shift, offset) */
771 GLfloat RedBias
, RedScale
;
772 GLfloat GreenBias
, GreenScale
;
773 GLfloat BlueBias
, BlueScale
;
774 GLfloat AlphaBias
, AlphaScale
;
775 GLfloat DepthBias
, DepthScale
;
776 GLint IndexShift
, IndexOffset
;
780 /* Note: actual pixel maps are not part of this attrib group */
781 GLboolean MapColorFlag
;
782 GLboolean MapStencilFlag
;
784 /*--- End Pixel Transfer State ---*/
787 GLfloat ZoomX
, ZoomY
;
792 * Point attribute group (GL_POINT_BIT).
794 struct gl_point_attrib
796 GLfloat Size
; /**< User-specified point size */
797 GLfloat Params
[3]; /**< GL_EXT_point_parameters */
798 GLfloat MinSize
, MaxSize
; /**< GL_EXT_point_parameters */
799 GLfloat Threshold
; /**< GL_EXT_point_parameters */
800 GLboolean SmoothFlag
; /**< True if GL_POINT_SMOOTH is enabled */
801 GLboolean _Attenuated
; /**< True if Params != [1, 0, 0] */
802 GLboolean PointSprite
; /**< GL_NV/ARB_point_sprite */
803 GLbitfield CoordReplace
; /**< GL_ARB_point_sprite*/
804 GLenum SpriteRMode
; /**< GL_NV_point_sprite (only!) */
805 GLenum SpriteOrigin
; /**< GL_ARB_point_sprite */
810 * Polygon attribute group (GL_POLYGON_BIT).
812 struct gl_polygon_attrib
814 GLenum FrontFace
; /**< Either GL_CW or GL_CCW */
815 GLenum FrontMode
; /**< Either GL_POINT, GL_LINE or GL_FILL */
816 GLenum BackMode
; /**< Either GL_POINT, GL_LINE or GL_FILL */
817 GLboolean CullFlag
; /**< Culling on/off flag */
818 GLboolean SmoothFlag
; /**< True if GL_POLYGON_SMOOTH is enabled */
819 GLboolean StippleFlag
; /**< True if GL_POLYGON_STIPPLE is enabled */
820 GLenum CullFaceMode
; /**< Culling mode GL_FRONT or GL_BACK */
821 GLfloat OffsetFactor
; /**< Polygon offset factor, from user */
822 GLfloat OffsetUnits
; /**< Polygon offset units, from user */
823 GLfloat OffsetClamp
; /**< Polygon offset clamp, from user */
824 GLboolean OffsetPoint
; /**< Offset in GL_POINT mode */
825 GLboolean OffsetLine
; /**< Offset in GL_LINE mode */
826 GLboolean OffsetFill
; /**< Offset in GL_FILL mode */
831 * Scissor attributes (GL_SCISSOR_BIT).
833 struct gl_scissor_rect
835 GLint X
, Y
; /**< Lower left corner of box */
836 GLsizei Width
, Height
; /**< Size of box */
838 struct gl_scissor_attrib
840 GLbitfield EnableFlags
; /**< Scissor test enabled? */
841 struct gl_scissor_rect ScissorArray
[MAX_VIEWPORTS
];
842 GLint NumWindowRects
; /**< Count of enabled window rectangles */
843 GLenum WindowRectMode
; /**< Whether to include or exclude the rects */
844 struct gl_scissor_rect WindowRects
[MAX_WINDOW_RECTANGLES
];
849 * Stencil attribute group (GL_STENCIL_BUFFER_BIT).
851 * Three sets of stencil data are tracked so that OpenGL 2.0,
852 * GL_EXT_stencil_two_side, and GL_ATI_separate_stencil can all be supported
853 * simultaneously. In each of the stencil state arrays, element 0 corresponds
854 * to GL_FRONT. Element 1 corresponds to the OpenGL 2.0 /
855 * GL_ATI_separate_stencil GL_BACK state. Element 2 corresponds to the
856 * GL_EXT_stencil_two_side GL_BACK state.
858 * The derived value \c _BackFace is either 1 or 2 depending on whether or
859 * not GL_STENCIL_TEST_TWO_SIDE_EXT is enabled.
861 * The derived value \c _TestTwoSide is set when the front-face and back-face
862 * stencil state are different.
864 struct gl_stencil_attrib
866 GLboolean Enabled
; /**< Enabled flag */
867 GLboolean TestTwoSide
; /**< GL_EXT_stencil_two_side */
868 GLubyte ActiveFace
; /**< GL_EXT_stencil_two_side (0 or 2) */
869 GLubyte _BackFace
; /**< Current back stencil state (1 or 2) */
870 GLenum Function
[3]; /**< Stencil function */
871 GLenum FailFunc
[3]; /**< Fail function */
872 GLenum ZPassFunc
[3]; /**< Depth buffer pass function */
873 GLenum ZFailFunc
[3]; /**< Depth buffer fail function */
874 GLint Ref
[3]; /**< Reference value */
875 GLuint ValueMask
[3]; /**< Value mask */
876 GLuint WriteMask
[3]; /**< Write mask */
877 GLuint Clear
; /**< Clear value */
882 * An index for each type of texture object. These correspond to the GL
883 * texture target enums, such as GL_TEXTURE_2D, GL_TEXTURE_CUBE_MAP, etc.
884 * Note: the order is from highest priority to lowest priority.
888 TEXTURE_2D_MULTISAMPLE_INDEX
,
889 TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX
,
890 TEXTURE_CUBE_ARRAY_INDEX
,
891 TEXTURE_BUFFER_INDEX
,
892 TEXTURE_2D_ARRAY_INDEX
,
893 TEXTURE_1D_ARRAY_INDEX
,
894 TEXTURE_EXTERNAL_INDEX
,
905 * Bit flags for each type of texture object
908 #define TEXTURE_2D_MULTISAMPLE_BIT (1 << TEXTURE_2D_MULTISAMPLE_INDEX)
909 #define TEXTURE_2D_MULTISAMPLE_ARRAY_BIT (1 << TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX)
910 #define TEXTURE_CUBE_ARRAY_BIT (1 << TEXTURE_CUBE_ARRAY_INDEX)
911 #define TEXTURE_BUFFER_BIT (1 << TEXTURE_BUFFER_INDEX)
912 #define TEXTURE_2D_ARRAY_BIT (1 << TEXTURE_2D_ARRAY_INDEX)
913 #define TEXTURE_1D_ARRAY_BIT (1 << TEXTURE_1D_ARRAY_INDEX)
914 #define TEXTURE_EXTERNAL_BIT (1 << TEXTURE_EXTERNAL_INDEX)
915 #define TEXTURE_CUBE_BIT (1 << TEXTURE_CUBE_INDEX)
916 #define TEXTURE_3D_BIT (1 << TEXTURE_3D_INDEX)
917 #define TEXTURE_RECT_BIT (1 << TEXTURE_RECT_INDEX)
918 #define TEXTURE_2D_BIT (1 << TEXTURE_2D_INDEX)
919 #define TEXTURE_1D_BIT (1 << TEXTURE_1D_INDEX)
924 * Texture image state. Drivers will typically create a subclass of this
925 * with extra fields for memory buffers, etc.
927 struct gl_texture_image
929 GLint InternalFormat
; /**< Internal format as given by the user */
930 GLenum _BaseFormat
; /**< Either GL_RGB, GL_RGBA, GL_ALPHA,
931 * GL_LUMINANCE, GL_LUMINANCE_ALPHA,
932 * GL_INTENSITY, GL_DEPTH_COMPONENT or
933 * GL_DEPTH_STENCIL_EXT only. Used for
934 * choosing TexEnv arithmetic.
936 mesa_format TexFormat
; /**< The actual texture memory format */
938 GLuint Border
; /**< 0 or 1 */
939 GLuint Width
; /**< = 2^WidthLog2 + 2*Border */
940 GLuint Height
; /**< = 2^HeightLog2 + 2*Border */
941 GLuint Depth
; /**< = 2^DepthLog2 + 2*Border */
942 GLuint Width2
; /**< = Width - 2*Border */
943 GLuint Height2
; /**< = Height - 2*Border */
944 GLuint Depth2
; /**< = Depth - 2*Border */
945 GLuint WidthLog2
; /**< = log2(Width2) */
946 GLuint HeightLog2
; /**< = log2(Height2) */
947 GLuint DepthLog2
; /**< = log2(Depth2) */
948 GLuint MaxNumLevels
; /**< = maximum possible number of mipmap
949 levels, computed from the dimensions */
951 struct gl_texture_object
*TexObject
; /**< Pointer back to parent object */
952 GLuint Level
; /**< Which mipmap level am I? */
953 /** Cube map face: index into gl_texture_object::Image[] array */
956 /** GL_ARB_texture_multisample */
957 GLuint NumSamples
; /**< Sample count, or 0 for non-multisample */
958 GLboolean FixedSampleLocations
; /**< Same sample locations for all pixels? */
963 * Indexes for cube map faces.
978 * Sampler object state. These objects are new with GL_ARB_sampler_objects
979 * and OpenGL 3.3. Legacy texture objects also contain a sampler object.
981 struct gl_sampler_object
986 GLchar
*Label
; /**< GL_KHR_debug */
988 GLenum WrapS
; /**< S-axis texture image wrap mode */
989 GLenum WrapT
; /**< T-axis texture image wrap mode */
990 GLenum WrapR
; /**< R-axis texture image wrap mode */
991 GLenum MinFilter
; /**< minification filter */
992 GLenum MagFilter
; /**< magnification filter */
993 union gl_color_union BorderColor
; /**< Interpreted according to texture format */
994 GLfloat MinLod
; /**< min lambda, OpenGL 1.2 */
995 GLfloat MaxLod
; /**< max lambda, OpenGL 1.2 */
996 GLfloat LodBias
; /**< OpenGL 1.4 */
997 GLfloat MaxAnisotropy
; /**< GL_EXT_texture_filter_anisotropic */
998 GLenum CompareMode
; /**< GL_ARB_shadow */
999 GLenum CompareFunc
; /**< GL_ARB_shadow */
1000 GLenum sRGBDecode
; /**< GL_DECODE_EXT or GL_SKIP_DECODE_EXT */
1001 GLboolean CubeMapSeamless
; /**< GL_AMD_seamless_cubemap_per_texture */
1003 /** GL_ARB_bindless_texture */
1004 bool HandleAllocated
;
1005 struct util_dynarray Handles
;
1010 * Texture object state. Contains the array of mipmap images, border color,
1011 * wrap modes, filter modes, and shadow/texcompare state.
1013 struct gl_texture_object
1015 simple_mtx_t Mutex
; /**< for thread safety */
1016 GLint RefCount
; /**< reference count */
1017 GLuint Name
; /**< the user-visible texture object ID */
1018 GLchar
*Label
; /**< GL_KHR_debug */
1019 GLenum Target
; /**< GL_TEXTURE_1D, GL_TEXTURE_2D, etc. */
1020 gl_texture_index TargetIndex
; /**< The gl_texture_unit::CurrentTex index.
1021 Only valid when Target is valid. */
1023 struct gl_sampler_object Sampler
;
1025 GLenum DepthMode
; /**< GL_ARB_depth_texture */
1027 GLfloat Priority
; /**< in [0,1] */
1028 GLint BaseLevel
; /**< min mipmap level, OpenGL 1.2 */
1029 GLint MaxLevel
; /**< max mipmap level, OpenGL 1.2 */
1030 GLint ImmutableLevels
; /**< ES 3.0 / ARB_texture_view */
1031 GLint _MaxLevel
; /**< actual max mipmap level (q in the spec) */
1032 GLfloat _MaxLambda
; /**< = _MaxLevel - BaseLevel (q - p in spec) */
1033 GLint CropRect
[4]; /**< GL_OES_draw_texture */
1034 GLenum Swizzle
[4]; /**< GL_EXT_texture_swizzle */
1035 GLuint _Swizzle
; /**< same as Swizzle, but SWIZZLE_* format */
1036 GLboolean GenerateMipmap
; /**< GL_SGIS_generate_mipmap */
1037 GLboolean _BaseComplete
; /**< Is the base texture level valid? */
1038 GLboolean _MipmapComplete
; /**< Is the whole mipmap valid? */
1039 GLboolean _IsIntegerFormat
; /**< Does the texture store integer values? */
1040 GLboolean _RenderToTexture
; /**< Any rendering to this texture? */
1041 GLboolean Purgeable
; /**< Is the buffer purgeable under memory
1043 GLboolean Immutable
; /**< GL_ARB_texture_storage */
1044 GLboolean _IsFloat
; /**< GL_OES_float_texture */
1045 GLboolean _IsHalfFloat
; /**< GL_OES_half_float_texture */
1046 bool StencilSampling
; /**< Should we sample stencil instead of depth? */
1047 bool HandleAllocated
; /**< GL_ARB_bindless_texture */
1049 GLuint MinLevel
; /**< GL_ARB_texture_view */
1050 GLuint MinLayer
; /**< GL_ARB_texture_view */
1051 GLuint NumLevels
; /**< GL_ARB_texture_view */
1052 GLuint NumLayers
; /**< GL_ARB_texture_view */
1054 /** GL_EXT_memory_object */
1055 GLenum TextureTiling
;
1057 /** Actual texture images, indexed by [cube face] and [mipmap level] */
1058 struct gl_texture_image
*Image
[MAX_FACES
][MAX_TEXTURE_LEVELS
];
1060 /** GL_ARB_texture_buffer_object */
1061 struct gl_buffer_object
*BufferObject
;
1062 GLenum BufferObjectFormat
;
1063 /** Equivalent Mesa format for BufferObjectFormat. */
1064 mesa_format _BufferObjectFormat
;
1065 /** GL_ARB_texture_buffer_range */
1066 GLintptr BufferOffset
;
1067 GLsizeiptr BufferSize
; /**< if this is -1, use BufferObject->Size instead */
1069 /** GL_OES_EGL_image_external */
1070 GLint RequiredTextureImageUnits
;
1072 /** GL_ARB_shader_image_load_store */
1073 GLenum ImageFormatCompatibilityType
;
1075 /** GL_ARB_bindless_texture */
1076 struct util_dynarray SamplerHandles
;
1077 struct util_dynarray ImageHandles
;
1081 /** Up to four combiner sources are possible with GL_NV_texture_env_combine4 */
1082 #define MAX_COMBINER_TERMS 4
1086 * Texture combine environment state.
1088 struct gl_tex_env_combine_state
1090 GLenum ModeRGB
; /**< GL_REPLACE, GL_DECAL, GL_ADD, etc. */
1091 GLenum ModeA
; /**< GL_REPLACE, GL_DECAL, GL_ADD, etc. */
1092 /** Source terms: GL_PRIMARY_COLOR, GL_TEXTURE, etc */
1093 GLenum SourceRGB
[MAX_COMBINER_TERMS
];
1094 GLenum SourceA
[MAX_COMBINER_TERMS
];
1095 /** Source operands: GL_SRC_COLOR, GL_ONE_MINUS_SRC_COLOR, etc */
1096 GLenum OperandRGB
[MAX_COMBINER_TERMS
];
1097 GLenum OperandA
[MAX_COMBINER_TERMS
];
1098 GLuint ScaleShiftRGB
; /**< 0, 1 or 2 */
1099 GLuint ScaleShiftA
; /**< 0, 1 or 2 */
1100 GLuint _NumArgsRGB
; /**< Number of inputs used for the RGB combiner */
1101 GLuint _NumArgsA
; /**< Number of inputs used for the A combiner */
1105 /** Compressed TexEnv effective Combine mode */
1106 enum gl_tex_env_mode
1108 TEXENV_MODE_REPLACE
, /* r = a0 */
1109 TEXENV_MODE_MODULATE
, /* r = a0 * a1 */
1110 TEXENV_MODE_ADD
, /* r = a0 + a1 */
1111 TEXENV_MODE_ADD_SIGNED
, /* r = a0 + a1 - 0.5 */
1112 TEXENV_MODE_INTERPOLATE
, /* r = a0 * a2 + a1 * (1 - a2) */
1113 TEXENV_MODE_SUBTRACT
, /* r = a0 - a1 */
1114 TEXENV_MODE_DOT3_RGB
, /* r = a0 . a1 */
1115 TEXENV_MODE_DOT3_RGB_EXT
, /* r = a0 . a1 */
1116 TEXENV_MODE_DOT3_RGBA
, /* r = a0 . a1 */
1117 TEXENV_MODE_DOT3_RGBA_EXT
, /* r = a0 . a1 */
1118 TEXENV_MODE_MODULATE_ADD_ATI
, /* r = a0 * a2 + a1 */
1119 TEXENV_MODE_MODULATE_SIGNED_ADD_ATI
, /* r = a0 * a2 + a1 - 0.5 */
1120 TEXENV_MODE_MODULATE_SUBTRACT_ATI
, /* r = a0 * a2 - a1 */
1121 TEXENV_MODE_ADD_PRODUCTS_NV
, /* r = a0 * a1 + a2 * a3 */
1122 TEXENV_MODE_ADD_PRODUCTS_SIGNED_NV
, /* r = a0 * a1 + a2 * a3 - 0.5 */
1126 /** Compressed TexEnv Combine source */
1127 enum gl_tex_env_source
1129 TEXENV_SRC_TEXTURE0
,
1130 TEXENV_SRC_TEXTURE1
,
1131 TEXENV_SRC_TEXTURE2
,
1132 TEXENV_SRC_TEXTURE3
,
1133 TEXENV_SRC_TEXTURE4
,
1134 TEXENV_SRC_TEXTURE5
,
1135 TEXENV_SRC_TEXTURE6
,
1136 TEXENV_SRC_TEXTURE7
,
1138 TEXENV_SRC_PREVIOUS
,
1139 TEXENV_SRC_PRIMARY_COLOR
,
1140 TEXENV_SRC_CONSTANT
,
1146 /** Compressed TexEnv Combine operand */
1147 enum gl_tex_env_operand
1150 TEXENV_OPR_ONE_MINUS_COLOR
,
1152 TEXENV_OPR_ONE_MINUS_ALPHA
,
1156 /** Compressed TexEnv Combine argument */
1157 struct gl_tex_env_argument
1160 __extension__
uint8_t Source
:4; /**< TEXENV_SRC_x */
1161 __extension__
uint8_t Operand
:2; /**< TEXENV_OPR_x */
1163 uint8_t Source
; /**< SRC_x */
1164 uint8_t Operand
; /**< OPR_x */
1170 * Compressed TexEnv Combine state.
1172 struct gl_tex_env_combine_packed
1174 uint32_t ModeRGB
:4; /**< Effective mode for RGB as 4 bits */
1175 uint32_t ModeA
:4; /**< Effective mode for RGB as 4 bits */
1176 uint32_t ScaleShiftRGB
:2; /**< 0, 1 or 2 */
1177 uint32_t ScaleShiftA
:2; /**< 0, 1 or 2 */
1178 uint32_t NumArgsRGB
:3; /**< Number of inputs used for the RGB combiner */
1179 uint32_t NumArgsA
:3; /**< Number of inputs used for the A combiner */
1180 /** Source arguments in a packed manner */
1181 struct gl_tex_env_argument ArgsRGB
[MAX_COMBINER_TERMS
];
1182 struct gl_tex_env_argument ArgsA
[MAX_COMBINER_TERMS
];
1187 * TexGenEnabled flags.
1194 #define STR_BITS (S_BIT | T_BIT | R_BIT)
1199 * Bit flag versions of the corresponding GL_ constants.
1202 #define TEXGEN_SPHERE_MAP 0x1
1203 #define TEXGEN_OBJ_LINEAR 0x2
1204 #define TEXGEN_EYE_LINEAR 0x4
1205 #define TEXGEN_REFLECTION_MAP_NV 0x8
1206 #define TEXGEN_NORMAL_MAP_NV 0x10
1208 #define TEXGEN_NEED_NORMALS (TEXGEN_SPHERE_MAP | \
1209 TEXGEN_REFLECTION_MAP_NV | \
1210 TEXGEN_NORMAL_MAP_NV)
1211 #define TEXGEN_NEED_EYE_COORD (TEXGEN_SPHERE_MAP | \
1212 TEXGEN_REFLECTION_MAP_NV | \
1213 TEXGEN_NORMAL_MAP_NV | \
1219 /** Tex-gen enabled for texture unit? */
1220 #define ENABLE_TEXGEN(unit) (1 << (unit))
1222 /** Non-identity texture matrix for texture unit? */
1223 #define ENABLE_TEXMAT(unit) (1 << (unit))
1227 * Texture coord generation state.
1231 GLenum Mode
; /**< GL_EYE_LINEAR, GL_SPHERE_MAP, etc */
1232 GLbitfield _ModeBit
; /**< TEXGEN_x bit corresponding to Mode */
1233 GLfloat ObjectPlane
[4];
1234 GLfloat EyePlane
[4];
1239 * Texture unit state. Contains enable flags, texture environment/function/
1240 * combiners, texgen state, and pointers to current texture objects.
1242 struct gl_texture_unit
1244 GLbitfield Enabled
; /**< bitmask of TEXTURE_*_BIT flags */
1246 GLenum EnvMode
; /**< GL_MODULATE, GL_DECAL, GL_BLEND, etc. */
1247 GLclampf EnvColor
[4];
1248 GLfloat EnvColorUnclamped
[4];
1250 struct gl_texgen GenS
;
1251 struct gl_texgen GenT
;
1252 struct gl_texgen GenR
;
1253 struct gl_texgen GenQ
;
1254 GLbitfield TexGenEnabled
; /**< Bitwise-OR of [STRQ]_BIT values */
1255 GLbitfield _GenFlags
; /**< Bitwise-OR of Gen[STRQ]._ModeBit */
1257 GLfloat LodBias
; /**< for biasing mipmap levels */
1259 /** Texture targets that have a non-default texture bound */
1260 GLbitfield _BoundTextures
;
1262 /** Current sampler object (GL_ARB_sampler_objects) */
1263 struct gl_sampler_object
*Sampler
;
1266 * \name GL_EXT_texture_env_combine
1268 struct gl_tex_env_combine_state Combine
;
1271 * Derived state based on \c EnvMode and the \c BaseFormat of the
1272 * currently enabled texture.
1274 struct gl_tex_env_combine_state _EnvMode
;
1277 * Currently enabled combiner state. This will point to either
1278 * \c Combine or \c _EnvMode.
1280 struct gl_tex_env_combine_state
*_CurrentCombine
;
1282 /** Current texture object pointers */
1283 struct gl_texture_object
*CurrentTex
[NUM_TEXTURE_TARGETS
];
1285 /** Points to highest priority, complete and enabled texture object */
1286 struct gl_texture_object
*_Current
;
1288 /** Current compressed TexEnv & Combine state */
1289 struct gl_tex_env_combine_packed _CurrentCombinePacked
;
1294 * Texture attribute group (GL_TEXTURE_BIT).
1296 struct gl_texture_attrib
1298 GLuint CurrentUnit
; /**< GL_ACTIVE_TEXTURE */
1300 /** GL_ARB_seamless_cubemap */
1301 GLboolean CubeMapSeamless
;
1303 struct gl_texture_object
*ProxyTex
[NUM_TEXTURE_TARGETS
];
1305 /** GL_ARB_texture_buffer_object */
1306 struct gl_buffer_object
*BufferObject
;
1308 /** Texture coord units/sets used for fragment texturing */
1309 GLbitfield _EnabledCoordUnits
;
1311 /** Texture coord units that have texgen enabled */
1312 GLbitfield _TexGenEnabled
;
1314 /** Texture coord units that have non-identity matrices */
1315 GLbitfield _TexMatEnabled
;
1317 /** Bitwise-OR of all Texture.Unit[i]._GenFlags */
1318 GLbitfield _GenFlags
;
1320 /** Largest index of a texture unit with _Current != NULL. */
1321 GLint _MaxEnabledTexImageUnit
;
1323 /** Largest index + 1 of texture units that have had any CurrentTex set. */
1324 GLint NumCurrentTexUsed
;
1326 struct gl_texture_unit Unit
[MAX_COMBINED_TEXTURE_IMAGE_UNITS
];
1331 * Data structure representing a single clip plane (e.g. one of the elements
1332 * of the ctx->Transform.EyeUserPlane or ctx->Transform._ClipUserPlane array).
1334 typedef GLfloat gl_clip_plane
[4];
1338 * Transformation attribute group (GL_TRANSFORM_BIT).
1340 struct gl_transform_attrib
1342 GLenum MatrixMode
; /**< Matrix mode */
1343 gl_clip_plane EyeUserPlane
[MAX_CLIP_PLANES
]; /**< User clip planes */
1344 gl_clip_plane _ClipUserPlane
[MAX_CLIP_PLANES
]; /**< derived */
1345 GLbitfield ClipPlanesEnabled
; /**< on/off bitmask */
1346 GLboolean Normalize
; /**< Normalize all normals? */
1347 GLboolean RescaleNormals
; /**< GL_EXT_rescale_normal */
1348 GLboolean RasterPositionUnclipped
; /**< GL_IBM_rasterpos_clip */
1349 GLboolean DepthClamp
; /**< GL_ARB_depth_clamp */
1350 /** GL_ARB_clip_control */
1351 GLenum ClipOrigin
; /**< GL_LOWER_LEFT or GL_UPPER_LEFT */
1352 GLenum ClipDepthMode
; /**< GL_NEGATIVE_ONE_TO_ONE or GL_ZERO_TO_ONE */
1357 * Viewport attribute group (GL_VIEWPORT_BIT).
1359 struct gl_viewport_attrib
1361 GLfloat X
, Y
; /**< position */
1362 GLfloat Width
, Height
; /**< size */
1363 GLdouble Near
, Far
; /**< Depth buffer range */
1372 } gl_map_buffer_index
;
1376 * Fields describing a mapped buffer range.
1378 struct gl_buffer_mapping
{
1379 GLbitfield AccessFlags
; /**< Mask of GL_MAP_x_BIT flags */
1380 GLvoid
*Pointer
; /**< User-space address of mapping */
1381 GLintptr Offset
; /**< Mapped offset */
1382 GLsizeiptr Length
; /**< Mapped length */
1387 * Usages we've seen for a buffer object.
1390 USAGE_UNIFORM_BUFFER
= 0x1,
1391 USAGE_TEXTURE_BUFFER
= 0x2,
1392 USAGE_ATOMIC_COUNTER_BUFFER
= 0x4,
1393 USAGE_SHADER_STORAGE_BUFFER
= 0x8,
1394 USAGE_TRANSFORM_FEEDBACK_BUFFER
= 0x10,
1395 USAGE_PIXEL_PACK_BUFFER
= 0x20,
1396 USAGE_DISABLE_MINMAX_CACHE
= 0x40,
1401 * GL_ARB_vertex/pixel_buffer_object buffer object
1403 struct gl_buffer_object
1408 GLchar
*Label
; /**< GL_KHR_debug */
1409 GLenum Usage
; /**< GL_STREAM_DRAW_ARB, GL_STREAM_READ_ARB, etc. */
1410 GLbitfield StorageFlags
; /**< GL_MAP_PERSISTENT_BIT, etc. */
1411 GLsizeiptrARB Size
; /**< Size of buffer storage in bytes */
1412 GLubyte
*Data
; /**< Location of storage either in RAM or VRAM. */
1413 GLboolean DeletePending
; /**< true if buffer object is removed from the hash */
1414 GLboolean Written
; /**< Ever written to? (for debugging) */
1415 GLboolean Purgeable
; /**< Is the buffer purgeable under memory pressure? */
1416 GLboolean Immutable
; /**< GL_ARB_buffer_storage */
1417 gl_buffer_usage UsageHistory
; /**< How has this buffer been used so far? */
1419 /** Counters used for buffer usage warnings */
1420 GLuint NumSubDataCalls
;
1421 GLuint NumMapBufferWriteCalls
;
1423 struct gl_buffer_mapping Mappings
[MAP_COUNT
];
1425 /** Memoization of min/max index computations for static index buffers */
1426 struct hash_table
*MinMaxCache
;
1427 unsigned MinMaxCacheHitIndices
;
1428 unsigned MinMaxCacheMissIndices
;
1429 bool MinMaxCacheDirty
;
1431 bool HandleAllocated
; /**< GL_ARB_bindless_texture */
1436 * Client pixel packing/unpacking attributes
1438 struct gl_pixelstore_attrib
1446 GLboolean SwapBytes
;
1448 GLboolean Invert
; /**< GL_MESA_pack_invert */
1449 GLint CompressedBlockWidth
; /**< GL_ARB_compressed_texture_pixel_storage */
1450 GLint CompressedBlockHeight
;
1451 GLint CompressedBlockDepth
;
1452 GLint CompressedBlockSize
;
1453 struct gl_buffer_object
*BufferObj
; /**< GL_ARB_pixel_buffer_object */
1458 * Vertex array information which is derived from gl_array_attributes
1459 * and gl_vertex_buffer_binding information. Used by the VBO module and
1462 struct gl_vertex_array
1464 GLint Size
; /**< components per element (1,2,3,4) */
1465 GLenum Type
; /**< datatype: GL_FLOAT, GL_INT, etc */
1466 GLenum Format
; /**< default: GL_RGBA, but may be GL_BGRA */
1467 GLsizei StrideB
; /**< actual stride in bytes */
1468 GLuint _ElementSize
; /**< size of each element in bytes */
1469 const GLubyte
*Ptr
; /**< Points to array data */
1470 GLboolean Normalized
; /**< GL_ARB_vertex_program */
1471 GLboolean Integer
; /**< Integer-valued? */
1472 GLboolean Doubles
; /**< double precision values are not converted to floats */
1473 GLuint InstanceDivisor
; /**< GL_ARB_instanced_arrays */
1475 struct gl_buffer_object
*BufferObj
;/**< GL_ARB_vertex_buffer_object */
1480 * Attributes to describe a vertex array.
1482 * Contains the size, type, format and normalization flag,
1483 * along with the index of a vertex buffer binding point.
1485 * Note that the Stride field corresponds to VERTEX_ATTRIB_ARRAY_STRIDE
1486 * and is only present for backwards compatibility reasons.
1487 * Rendering always uses VERTEX_BINDING_STRIDE.
1488 * The gl*Pointer() functions will set VERTEX_ATTRIB_ARRAY_STRIDE
1489 * and VERTEX_BINDING_STRIDE to the same value, while
1490 * glBindVertexBuffer() will only set VERTEX_BINDING_STRIDE.
1492 struct gl_array_attributes
1494 GLint Size
; /**< Components per element (1,2,3,4) */
1495 GLenum Type
; /**< Datatype: GL_FLOAT, GL_INT, etc */
1496 GLenum Format
; /**< Default: GL_RGBA, but may be GL_BGRA */
1497 GLsizei Stride
; /**< Stride as specified with gl*Pointer() */
1498 const GLubyte
*Ptr
; /**< Points to client array data. Not used when a VBO is bound */
1499 GLintptr RelativeOffset
; /**< Offset of the first element relative to the binding offset */
1500 GLboolean Enabled
; /**< Whether the array is enabled */
1501 GLboolean Normalized
; /**< Fixed-point values are normalized when converted to floats */
1502 GLboolean Integer
; /**< Fixed-point values are not converted to floats */
1503 GLboolean Doubles
; /**< double precision values are not converted to floats */
1504 GLuint _ElementSize
; /**< Size of each element in bytes */
1505 GLuint BufferBindingIndex
; /**< Vertex buffer binding */
1510 * This describes the buffer object used for a vertex array (or
1511 * multiple vertex arrays). If BufferObj points to the default/null
1512 * buffer object, then the vertex array lives in user memory and not a VBO.
1514 struct gl_vertex_buffer_binding
1516 GLintptr Offset
; /**< User-specified offset */
1517 GLsizei Stride
; /**< User-specified stride */
1518 GLuint InstanceDivisor
; /**< GL_ARB_instanced_arrays */
1519 struct gl_buffer_object
*BufferObj
; /**< GL_ARB_vertex_buffer_object */
1520 GLbitfield _BoundArrays
; /**< Arrays bound to this binding point */
1525 * A representation of "Vertex Array Objects" (VAOs) from OpenGL 3.1+ /
1526 * the GL_ARB_vertex_array_object extension.
1528 struct gl_vertex_array_object
1530 /** Name of the VAO as received from glGenVertexArray. */
1535 GLchar
*Label
; /**< GL_KHR_debug */
1538 * Has this array object been bound?
1540 GLboolean EverBound
;
1543 * Derived vertex attribute arrays
1545 * This is a legacy data structure created from gl_vertex_attrib_array and
1546 * gl_vertex_buffer_binding, for compatibility with existing driver code.
1548 struct gl_vertex_array _VertexAttrib
[VERT_ATTRIB_MAX
];
1550 /** Vertex attribute arrays */
1551 struct gl_array_attributes VertexAttrib
[VERT_ATTRIB_MAX
];
1553 /** Vertex buffer bindings */
1554 struct gl_vertex_buffer_binding BufferBinding
[VERT_ATTRIB_MAX
];
1556 /** Mask indicating which vertex arrays have vertex buffer associated. */
1557 GLbitfield VertexAttribBufferMask
;
1559 /** Mask of VERT_BIT_* values indicating which arrays are enabled */
1560 GLbitfield _Enabled
;
1562 /** Mask of VERT_BIT_* values indicating changed/dirty arrays */
1563 GLbitfield NewArrays
;
1565 /** The index buffer (also known as the element array buffer in OpenGL). */
1566 struct gl_buffer_object
*IndexBufferObj
;
1570 /** Used to signal when transitioning from one kind of drawing method
1574 DRAW_NONE
, /**< Initial value only */
1581 * Enum for the OpenGL APIs we know about and may support.
1583 * NOTE: This must match the api_enum table in
1584 * src/mesa/main/get_hash_generator.py
1588 API_OPENGL_COMPAT
, /* legacy / compatibility contexts */
1592 API_OPENGL_LAST
= API_OPENGL_CORE
1596 * Vertex array state
1598 struct gl_array_attrib
1600 /** Currently bound array object. */
1601 struct gl_vertex_array_object
*VAO
;
1603 /** The default vertex array object */
1604 struct gl_vertex_array_object
*DefaultVAO
;
1606 /** The last VAO accessed by a DSA function */
1607 struct gl_vertex_array_object
*LastLookedUpVAO
;
1609 /** Array objects (GL_ARB_vertex_array_object) */
1610 struct _mesa_HashTable
*Objects
;
1612 GLint ActiveTexture
; /**< Client Active Texture */
1613 GLuint LockFirst
; /**< GL_EXT_compiled_vertex_array */
1614 GLuint LockCount
; /**< GL_EXT_compiled_vertex_array */
1617 * \name Primitive restart controls
1619 * Primitive restart is enabled if either \c PrimitiveRestart or
1620 * \c PrimitiveRestartFixedIndex is set.
1623 GLboolean PrimitiveRestart
;
1624 GLboolean PrimitiveRestartFixedIndex
;
1625 GLboolean _PrimitiveRestart
;
1626 GLuint RestartIndex
;
1629 /** One of the DRAW_xxx flags, not consumed by drivers */
1630 gl_draw_method DrawMethod
;
1632 /* GL_ARB_vertex_buffer_object */
1633 struct gl_buffer_object
*ArrayBufferObj
;
1636 * Vertex arrays as consumed by a driver.
1637 * The array pointer is set up only by the VBO module.
1639 const struct gl_vertex_array
**_DrawArrays
; /**< 0..VERT_ATTRIB_MAX-1 */
1641 /** Legal array datatypes and the API for which they have been computed */
1642 GLbitfield LegalTypesMask
;
1643 gl_api LegalTypesMaskAPI
;
1648 * Feedback buffer state
1653 GLbitfield _Mask
; /**< FB_* bits */
1661 * Selection buffer state
1665 GLuint
*Buffer
; /**< selection buffer */
1666 GLuint BufferSize
; /**< size of the selection buffer */
1667 GLuint BufferCount
; /**< number of values in the selection buffer */
1668 GLuint Hits
; /**< number of records in the selection buffer */
1669 GLuint NameStackDepth
; /**< name stack depth */
1670 GLuint NameStack
[MAX_NAME_STACK_DEPTH
]; /**< name stack */
1671 GLboolean HitFlag
; /**< hit flag */
1672 GLfloat HitMinZ
; /**< minimum hit depth */
1673 GLfloat HitMaxZ
; /**< maximum hit depth */
1678 * 1-D Evaluator control points
1682 GLuint Order
; /**< Number of control points */
1683 GLfloat u1
, u2
, du
; /**< u1, u2, 1.0/(u2-u1) */
1684 GLfloat
*Points
; /**< Points to contiguous control points */
1689 * 2-D Evaluator control points
1693 GLuint Uorder
; /**< Number of control points in U dimension */
1694 GLuint Vorder
; /**< Number of control points in V dimension */
1697 GLfloat
*Points
; /**< Points to contiguous control points */
1702 * All evaluator control point state
1704 struct gl_evaluators
1710 struct gl_1d_map Map1Vertex3
;
1711 struct gl_1d_map Map1Vertex4
;
1712 struct gl_1d_map Map1Index
;
1713 struct gl_1d_map Map1Color4
;
1714 struct gl_1d_map Map1Normal
;
1715 struct gl_1d_map Map1Texture1
;
1716 struct gl_1d_map Map1Texture2
;
1717 struct gl_1d_map Map1Texture3
;
1718 struct gl_1d_map Map1Texture4
;
1725 struct gl_2d_map Map2Vertex3
;
1726 struct gl_2d_map Map2Vertex4
;
1727 struct gl_2d_map Map2Index
;
1728 struct gl_2d_map Map2Color4
;
1729 struct gl_2d_map Map2Normal
;
1730 struct gl_2d_map Map2Texture1
;
1731 struct gl_2d_map Map2Texture2
;
1732 struct gl_2d_map Map2Texture3
;
1733 struct gl_2d_map Map2Texture4
;
1738 struct gl_transform_feedback_varying_info
1749 * Per-output info vertex shaders for transform feedback.
1751 struct gl_transform_feedback_output
1753 uint32_t OutputRegister
;
1754 uint32_t OutputBuffer
;
1755 uint32_t NumComponents
;
1758 /** offset (in DWORDs) of this output within the interleaved structure */
1762 * Offset into the output register of the data to output. For example,
1763 * if NumComponents is 2 and ComponentOffset is 1, then the data to
1764 * offset is in the y and z components of the output register.
1766 uint32_t ComponentOffset
;
1770 struct gl_transform_feedback_buffer
1774 uint32_t NumVaryings
;
1777 * Total number of components stored in each buffer. This may be used by
1778 * hardware back-ends to determine the correct stride when interleaving
1779 * multiple transform feedback outputs in the same buffer.
1784 * Which transform feedback stream this buffer binding is associated with.
1790 /** Post-link transform feedback info. */
1791 struct gl_transform_feedback_info
1793 /* Was xfb enabled via the api or in shader layout qualifiers */
1796 unsigned NumOutputs
;
1798 /* Bitmask of active buffer indices. */
1799 unsigned ActiveBuffers
;
1801 struct gl_transform_feedback_output
*Outputs
;
1803 /** Transform feedback varyings used for the linking of this shader program.
1805 * Use for glGetTransformFeedbackVarying().
1807 struct gl_transform_feedback_varying_info
*Varyings
;
1810 struct gl_transform_feedback_buffer Buffers
[MAX_FEEDBACK_BUFFERS
];
1815 * Transform feedback object state
1817 struct gl_transform_feedback_object
1819 GLuint Name
; /**< AKA the object ID */
1821 GLchar
*Label
; /**< GL_KHR_debug */
1822 GLboolean Active
; /**< Is transform feedback enabled? */
1823 GLboolean Paused
; /**< Is transform feedback paused? */
1824 GLboolean EndedAnytime
; /**< Has EndTransformFeedback been called
1826 GLboolean EverBound
; /**< Has this object been bound? */
1829 * GLES: if Active is true, remaining number of primitives which can be
1830 * rendered without overflow. This is necessary to track because GLES
1831 * requires us to generate INVALID_OPERATION if a call to glDrawArrays or
1832 * glDrawArraysInstanced would overflow transform feedback buffers.
1833 * Undefined if Active is false.
1835 * Not tracked for desktop GL since it's unnecessary.
1837 unsigned GlesRemainingPrims
;
1840 * The program active when BeginTransformFeedback() was called.
1841 * When active and unpaused, this equals ctx->Shader.CurrentProgram[stage],
1842 * where stage is the pipeline stage that is the source of data for
1843 * transform feedback.
1845 struct gl_program
*program
;
1847 /** The feedback buffers */
1848 GLuint BufferNames
[MAX_FEEDBACK_BUFFERS
];
1849 struct gl_buffer_object
*Buffers
[MAX_FEEDBACK_BUFFERS
];
1851 /** Start of feedback data in dest buffer */
1852 GLintptr Offset
[MAX_FEEDBACK_BUFFERS
];
1855 * Max data to put into dest buffer (in bytes). Computed based on
1856 * RequestedSize and the actual size of the buffer.
1858 GLsizeiptr Size
[MAX_FEEDBACK_BUFFERS
];
1861 * Size that was specified when the buffer was bound. If the buffer was
1862 * bound with glBindBufferBase() or glBindBufferOffsetEXT(), this value is
1865 GLsizeiptr RequestedSize
[MAX_FEEDBACK_BUFFERS
];
1870 * Context state for transform feedback.
1872 struct gl_transform_feedback_state
1874 GLenum Mode
; /**< GL_POINTS, GL_LINES or GL_TRIANGLES */
1876 /** The general binding point (GL_TRANSFORM_FEEDBACK_BUFFER) */
1877 struct gl_buffer_object
*CurrentBuffer
;
1879 /** The table of all transform feedback objects */
1880 struct _mesa_HashTable
*Objects
;
1882 /** The current xform-fb object (GL_TRANSFORM_FEEDBACK_BINDING) */
1883 struct gl_transform_feedback_object
*CurrentObject
;
1885 /** The default xform-fb object (Name==0) */
1886 struct gl_transform_feedback_object
*DefaultObject
;
1891 * A "performance monitor" as described in AMD_performance_monitor.
1893 struct gl_perf_monitor_object
1897 /** True if the monitor is currently active (Begin called but not End). */
1901 * True if the monitor has ended.
1903 * This is distinct from !Active because it may never have began.
1908 * A list of groups with currently active counters.
1910 * ActiveGroups[g] == n if there are n counters active from group 'g'.
1912 unsigned *ActiveGroups
;
1915 * An array of bitsets, subscripted by group ID, then indexed by counter ID.
1917 * Checking whether counter 'c' in group 'g' is active can be done via:
1919 * BITSET_TEST(ActiveCounters[g], c)
1921 GLuint
**ActiveCounters
;
1925 union gl_perf_monitor_counter_value
1933 struct gl_perf_monitor_counter
1935 /** Human readable name for the counter. */
1939 * Data type of the counter. Valid values are FLOAT, UNSIGNED_INT,
1940 * UNSIGNED_INT64_AMD, and PERCENTAGE_AMD.
1944 /** Minimum counter value. */
1945 union gl_perf_monitor_counter_value Minimum
;
1947 /** Maximum counter value. */
1948 union gl_perf_monitor_counter_value Maximum
;
1952 struct gl_perf_monitor_group
1954 /** Human readable name for the group. */
1958 * Maximum number of counters in this group which can be active at the
1961 GLuint MaxActiveCounters
;
1963 /** Array of counters within this group. */
1964 const struct gl_perf_monitor_counter
*Counters
;
1970 * A query object instance as described in INTEL_performance_query.
1972 * NB: We want to keep this and the corresponding backend structure
1973 * relatively lean considering that applications may expect to
1974 * allocate enough objects to be able to query around all draw calls
1977 struct gl_perf_query_object
1979 GLuint Id
; /**< hash table ID/name */
1980 unsigned Used
:1; /**< has been used for 1 or more queries */
1981 unsigned Active
:1; /**< inside Begin/EndPerfQuery */
1982 unsigned Ready
:1; /**< result is ready? */
1987 * Context state for AMD_performance_monitor.
1989 struct gl_perf_monitor_state
1991 /** Array of performance monitor groups (indexed by group ID) */
1992 const struct gl_perf_monitor_group
*Groups
;
1995 /** The table of all performance monitors. */
1996 struct _mesa_HashTable
*Monitors
;
2001 * Context state for INTEL_performance_query.
2003 struct gl_perf_query_state
2005 struct _mesa_HashTable
*Objects
; /**< The table of all performance query objects */
2010 * A bindless sampler object.
2012 struct gl_bindless_sampler
2014 /** Texture unit (set by glUniform1()). */
2017 /** Whether this bindless sampler is bound to a unit. */
2020 /** Texture Target (TEXTURE_1D/2D/3D/etc_INDEX). */
2021 gl_texture_index target
;
2023 /** Pointer to the base of the data. */
2028 * A bindless image object.
2030 struct gl_bindless_image
2032 /** Image unit (set by glUniform1()). */
2035 /** Whether this bindless image is bound to a unit. */
2038 /** Access qualifier (GL_READ_WRITE, GL_READ_ONLY, GL_WRITE_ONLY) */
2041 /** Pointer to the base of the data. */
2046 * Names of the various vertex/fragment program register files, etc.
2048 * NOTE: first four tokens must fit into 2 bits (see t_vb_arbprogram.c)
2049 * All values should fit in a 4-bit field.
2051 * NOTE: PROGRAM_STATE_VAR, PROGRAM_CONSTANT, and PROGRAM_UNIFORM can all be
2052 * considered to be "uniform" variables since they can only be set outside
2053 * glBegin/End. They're also all stored in the same Parameters array.
2057 PROGRAM_TEMPORARY
, /**< machine->Temporary[] */
2058 PROGRAM_ARRAY
, /**< Arrays & Matrixes */
2059 PROGRAM_INPUT
, /**< machine->Inputs[] */
2060 PROGRAM_OUTPUT
, /**< machine->Outputs[] */
2061 PROGRAM_STATE_VAR
, /**< gl_program->Parameters[] */
2062 PROGRAM_CONSTANT
, /**< gl_program->Parameters[] */
2063 PROGRAM_UNIFORM
, /**< gl_program->Parameters[] */
2064 PROGRAM_WRITE_ONLY
, /**< A dummy, write-only register */
2065 PROGRAM_ADDRESS
, /**< machine->AddressReg */
2066 PROGRAM_SAMPLER
, /**< for shader samplers, compile-time only */
2067 PROGRAM_SYSTEM_VALUE
,/**< InstanceId, PrimitiveID, etc. */
2068 PROGRAM_UNDEFINED
, /**< Invalid/TBD value */
2069 PROGRAM_IMMEDIATE
, /**< Immediate value, used by TGSI */
2070 PROGRAM_BUFFER
, /**< for shader buffers, compile-time only */
2071 PROGRAM_MEMORY
, /**< for shared, global and local memory */
2072 PROGRAM_IMAGE
, /**< for shader images, compile-time only */
2073 PROGRAM_HW_ATOMIC
, /**< for hw atomic counters, compile-time only */
2079 * Base class for any kind of program object
2083 /** FIXME: This must be first until we split shader_info from nir_shader */
2084 struct shader_info info
;
2088 GLubyte
*String
; /**< Null-terminated program text */
2090 GLenum Target
; /**< GL_VERTEX/FRAGMENT_PROGRAM_ARB, GL_GEOMETRY_PROGRAM_NV */
2091 GLenum Format
; /**< String encoding format */
2093 GLboolean _Used
; /**< Ever used for drawing? Used for debugging */
2095 struct nir_shader
*nir
;
2097 /* Saved and restored with metadata. Freed with ralloc. */
2098 void *driver_cache_blob
;
2099 size_t driver_cache_blob_size
;
2101 bool is_arb_asm
; /** Is this an ARB assembly-style program */
2103 /** Is this program written to on disk shader cache */
2104 bool program_written_to_cache
;
2106 GLbitfield64 SecondaryOutputsWritten
; /**< Subset of OutputsWritten outputs written with non-zero index. */
2107 GLbitfield TexturesUsed
[MAX_COMBINED_TEXTURE_IMAGE_UNITS
]; /**< TEXTURE_x_BIT bitmask */
2108 GLbitfield SamplersUsed
; /**< Bitfield of which samplers are used */
2109 GLbitfield ShadowSamplers
; /**< Texture units used for shadow sampling. */
2110 GLbitfield ExternalSamplersUsed
; /**< Texture units used for samplerExternalOES */
2112 /* Fragement shader only fields */
2113 GLboolean OriginUpperLeft
;
2114 GLboolean PixelCenterInteger
;
2116 /** Named parameters, constants, etc. from program text */
2117 struct gl_program_parameter_list
*Parameters
;
2119 /** Map from sampler unit to texture unit (set by glUniform1i()) */
2120 GLubyte SamplerUnits
[MAX_SAMPLERS
];
2122 /* FIXME: We should be able to make this struct a union. However some
2123 * drivers (i915/fragment_programs, swrast/prog_execute) mix the use of
2124 * these fields, we should fix this.
2127 /** Fields used by GLSL programs */
2129 /** Data shared by gl_program and gl_shader_program */
2130 struct gl_shader_program_data
*data
;
2132 struct gl_active_atomic_buffer
**AtomicBuffers
;
2134 /** Post-link transform feedback info. */
2135 struct gl_transform_feedback_info
*LinkedTransformFeedback
;
2138 * Number of types for subroutine uniforms.
2140 GLuint NumSubroutineUniformTypes
;
2143 * Subroutine uniform remap table
2144 * based on the program level uniform remap table.
2146 GLuint NumSubroutineUniforms
; /* non-sparse total */
2147 GLuint NumSubroutineUniformRemapTable
;
2148 struct gl_uniform_storage
**SubroutineUniformRemapTable
;
2151 * Num of subroutine functions for this stage and storage for them.
2153 GLuint NumSubroutineFunctions
;
2154 GLuint MaxSubroutineFunctionIndex
;
2155 struct gl_subroutine_function
*SubroutineFunctions
;
2158 * Map from image uniform index to image unit (set by glUniform1i())
2160 * An image uniform index is associated with each image uniform by
2161 * the linker. The image index associated with each uniform is
2162 * stored in the \c gl_uniform_storage::image field.
2164 GLubyte ImageUnits
[MAX_IMAGE_UNIFORMS
];
2167 * Access qualifier specified in the shader for each image uniform
2168 * index. Either \c GL_READ_ONLY, \c GL_WRITE_ONLY or \c
2171 * It may be different, though only more strict than the value of
2172 * \c gl_image_unit::Access for the corresponding image unit.
2174 GLenum ImageAccess
[MAX_IMAGE_UNIFORMS
];
2176 struct gl_uniform_block
**UniformBlocks
;
2177 struct gl_uniform_block
**ShaderStorageBlocks
;
2179 /** Which texture target is being sampled
2180 * (TEXTURE_1D/2D/3D/etc_INDEX)
2182 gl_texture_index SamplerTargets
[MAX_SAMPLERS
];
2185 * Number of samplers declared with the bindless_sampler layout
2186 * qualifier as specified by ARB_bindless_texture.
2188 GLuint NumBindlessSamplers
;
2189 GLboolean HasBoundBindlessSampler
;
2190 struct gl_bindless_sampler
*BindlessSamplers
;
2193 * Number of images declared with the bindless_image layout qualifier
2194 * as specified by ARB_bindless_texture.
2196 GLuint NumBindlessImages
;
2197 GLboolean HasBoundBindlessImage
;
2198 struct gl_bindless_image
*BindlessImages
;
2203 * A bitmask of gl_advanced_blend_mode values
2205 GLbitfield BlendSupport
;
2210 /** ARB assembly-style program fields */
2212 struct prog_instruction
*Instructions
;
2215 * Local parameters used by the program.
2217 * It's dynamically allocated because it is rarely used (just
2218 * assembly-style programs), and MAX_PROGRAM_LOCAL_PARAMS entries
2219 * once it's allocated.
2221 GLfloat (*LocalParams
)[4];
2223 /** Bitmask of which register files are read/written with indirect
2224 * addressing. Mask of (1 << PROGRAM_x) bits.
2226 GLbitfield IndirectRegisterFiles
;
2228 /** Logical counts */
2230 GLuint NumInstructions
;
2231 GLuint NumTemporaries
;
2232 GLuint NumParameters
;
2233 GLuint NumAttributes
;
2234 GLuint NumAddressRegs
;
2235 GLuint NumAluInstructions
;
2236 GLuint NumTexInstructions
;
2237 GLuint NumTexIndirections
;
2239 /** Native, actual h/w counts */
2241 GLuint NumNativeInstructions
;
2242 GLuint NumNativeTemporaries
;
2243 GLuint NumNativeParameters
;
2244 GLuint NumNativeAttributes
;
2245 GLuint NumNativeAddressRegs
;
2246 GLuint NumNativeAluInstructions
;
2247 GLuint NumNativeTexInstructions
;
2248 GLuint NumNativeTexIndirections
;
2251 /** Used by ARB assembly-style programs. Can only be true for vertex
2254 GLboolean IsPositionInvariant
;
2261 * State common to vertex and fragment programs.
2263 struct gl_program_state
2265 GLint ErrorPos
; /* GL_PROGRAM_ERROR_POSITION_ARB/NV */
2266 const char *ErrorString
; /* GL_PROGRAM_ERROR_STRING_ARB/NV */
2271 * Context state for vertex programs.
2273 struct gl_vertex_program_state
2275 GLboolean Enabled
; /**< User-set GL_VERTEX_PROGRAM_ARB/NV flag */
2276 GLboolean PointSizeEnabled
; /**< GL_VERTEX_PROGRAM_POINT_SIZE_ARB/NV */
2277 GLboolean TwoSideEnabled
; /**< GL_VERTEX_PROGRAM_TWO_SIDE_ARB/NV */
2278 /** Should fixed-function T&L be implemented with a vertex prog? */
2279 GLboolean _MaintainTnlProgram
;
2281 struct gl_program
*Current
; /**< User-bound vertex program */
2283 /** Currently enabled and valid vertex program (including internal
2284 * programs, user-defined vertex programs and GLSL vertex shaders).
2285 * This is the program we must use when rendering.
2287 struct gl_program
*_Current
;
2289 GLfloat Parameters
[MAX_PROGRAM_ENV_PARAMS
][4]; /**< Env params */
2291 /** Program to emulate fixed-function T&L (see above) */
2292 struct gl_program
*_TnlProgram
;
2294 /** Cache of fixed-function programs */
2295 struct gl_program_cache
*Cache
;
2297 GLboolean _Overriden
;
2301 * Context state for tessellation control programs.
2303 struct gl_tess_ctrl_program_state
2305 /** Currently bound and valid shader. */
2306 struct gl_program
*_Current
;
2308 GLint patch_vertices
;
2309 GLfloat patch_default_outer_level
[4];
2310 GLfloat patch_default_inner_level
[2];
2314 * Context state for tessellation evaluation programs.
2316 struct gl_tess_eval_program_state
2318 /** Currently bound and valid shader. */
2319 struct gl_program
*_Current
;
2323 * Context state for geometry programs.
2325 struct gl_geometry_program_state
2327 /** Currently enabled and valid program (including internal programs
2328 * and compiled shader programs).
2330 struct gl_program
*_Current
;
2334 * Context state for fragment programs.
2336 struct gl_fragment_program_state
2338 GLboolean Enabled
; /**< User-set fragment program enable flag */
2339 /** Should fixed-function texturing be implemented with a fragment prog? */
2340 GLboolean _MaintainTexEnvProgram
;
2342 struct gl_program
*Current
; /**< User-bound fragment program */
2344 /** Currently enabled and valid fragment program (including internal
2345 * programs, user-defined fragment programs and GLSL fragment shaders).
2346 * This is the program we must use when rendering.
2348 struct gl_program
*_Current
;
2350 GLfloat Parameters
[MAX_PROGRAM_ENV_PARAMS
][4]; /**< Env params */
2352 /** Program to emulate fixed-function texture env/combine (see above) */
2353 struct gl_program
*_TexEnvProgram
;
2355 /** Cache of fixed-function programs */
2356 struct gl_program_cache
*Cache
;
2361 * Context state for compute programs.
2363 struct gl_compute_program_state
2365 /** Currently enabled and valid program (including internal programs
2366 * and compiled shader programs).
2368 struct gl_program
*_Current
;
2373 * ATI_fragment_shader runtime state
2376 struct atifs_instruction
;
2377 struct atifs_setupinst
;
2380 * ATI fragment shader
2382 struct ati_fragment_shader
2386 struct atifs_instruction
*Instructions
[2];
2387 struct atifs_setupinst
*SetupInst
[2];
2388 GLfloat Constants
[8][4];
2389 GLbitfield LocalConstDef
; /**< Indicates which constants have been set */
2390 GLubyte numArithInstr
[2];
2391 GLubyte regsAssigned
[2];
2392 GLubyte NumPasses
; /**< 1 or 2 */
2394 GLubyte last_optype
;
2395 GLboolean interpinp1
;
2398 struct gl_program
*Program
;
2402 * Context state for GL_ATI_fragment_shader
2404 struct gl_ati_fragment_shader_state
2407 GLboolean Compiling
;
2408 GLfloat GlobalConstants
[8][4];
2409 struct ati_fragment_shader
*Current
;
2413 * Shader subroutine function definition
2415 struct gl_subroutine_function
2419 int num_compat_types
;
2420 const struct glsl_type
**types
;
2424 * Shader information needed by both gl_shader and gl_linked shader.
2426 struct gl_shader_info
2429 * Tessellation Control shader state from layout qualifiers.
2433 * 0 - vertices not declared in shader, or
2434 * 1 .. GL_MAX_PATCH_VERTICES
2440 * Tessellation Evaluation shader state from layout qualifiers.
2444 * GL_TRIANGLES, GL_QUADS, GL_ISOLINES or PRIM_UNKNOWN if it's not set
2447 GLenum PrimitiveMode
;
2449 enum gl_tess_spacing Spacing
;
2452 * GL_CW, GL_CCW, or 0 if it's not set in this shader.
2456 * 1, 0, or -1 if it's not set in this shader.
2462 * Geometry shader state from GLSL 1.50 layout qualifiers.
2467 * 0 - Invocations count not declared in shader, or
2468 * 1 .. MAX_GEOMETRY_SHADER_INVOCATIONS
2472 * GL_POINTS, GL_LINES, GL_LINES_ADJACENCY, GL_TRIANGLES, or
2473 * GL_TRIANGLES_ADJACENCY, or PRIM_UNKNOWN if it's not set in this
2478 * GL_POINTS, GL_LINE_STRIP or GL_TRIANGLE_STRIP, or PRIM_UNKNOWN if
2479 * it's not set in this shader.
2485 * Compute shader state from ARB_compute_shader and
2486 * ARB_compute_variable_group_size layout qualifiers.
2490 * Size specified using local_size_{x,y,z}, or all 0's to indicate that
2491 * it's not set in this shader.
2493 unsigned LocalSize
[3];
2496 * Whether a variable work group size has been specified as defined by
2497 * ARB_compute_variable_group_size.
2499 bool LocalSizeVariable
;
2504 * A linked GLSL shader object.
2506 struct gl_linked_shader
2508 gl_shader_stage Stage
;
2511 unsigned SourceChecksum
;
2514 struct gl_program
*Program
; /**< Post-compile assembly code */
2517 * \name Sampler tracking
2519 * \note Each of these fields is only set post-linking.
2522 GLbitfield shadow_samplers
; /**< Samplers used for shadow sampling. */
2526 * Number of default uniform block components used by this shader.
2528 * This field is only set post-linking.
2530 unsigned num_uniform_components
;
2533 * Number of combined uniform components used by this shader.
2535 * This field is only set post-linking. It is the sum of the uniform block
2536 * sizes divided by sizeof(float), and num_uniform_compoennts.
2538 unsigned num_combined_uniform_components
;
2540 struct exec_list
*ir
;
2541 struct exec_list
*packed_varyings
;
2542 struct exec_list
*fragdata_arrays
;
2543 struct glsl_symbol_table
*symbols
;
2547 static inline GLbitfield
2548 gl_external_samplers(const struct gl_program
*prog
)
2550 GLbitfield external_samplers
= 0;
2551 GLbitfield mask
= prog
->SamplersUsed
;
2554 int idx
= u_bit_scan(&mask
);
2555 if (prog
->sh
.SamplerTargets
[idx
] == TEXTURE_EXTERNAL_INDEX
)
2556 external_samplers
|= (1 << idx
);
2559 return external_samplers
;
2564 * Compile status enum. compile_skipped is used to indicate the compile
2565 * was skipped due to the shader matching one that's been seen before by
2566 * the on-disk cache.
2568 enum gl_compile_status
2570 compile_failure
= 0,
2577 * A GLSL shader object.
2581 /** GL_FRAGMENT_SHADER || GL_VERTEX_SHADER || GL_GEOMETRY_SHADER_ARB ||
2582 * GL_TESS_CONTROL_SHADER || GL_TESS_EVALUATION_SHADER.
2583 * Must be the first field.
2586 gl_shader_stage Stage
;
2587 GLuint Name
; /**< AKA the handle */
2588 GLint RefCount
; /**< Reference count */
2589 GLchar
*Label
; /**< GL_KHR_debug */
2590 unsigned char sha1
[20]; /**< SHA1 hash of pre-processed source */
2591 GLboolean DeletePending
;
2592 bool IsES
; /**< True if this shader uses GLSL ES */
2594 enum gl_compile_status CompileStatus
;
2597 unsigned SourceChecksum
; /**< for debug/logging purposes */
2599 const GLchar
*Source
; /**< Source code string */
2601 const GLchar
*FallbackSource
; /**< Fallback string used by on-disk cache*/
2605 unsigned Version
; /**< GLSL version used for linking */
2608 * A bitmask of gl_advanced_blend_mode values
2610 GLbitfield BlendSupport
;
2612 struct exec_list
*ir
;
2613 struct glsl_symbol_table
*symbols
;
2616 * Whether early fragment tests are enabled as defined by
2617 * ARB_shader_image_load_store.
2619 bool EarlyFragmentTests
;
2621 bool ARB_fragment_coord_conventions_enable
;
2623 bool redeclares_gl_fragcoord
;
2624 bool uses_gl_fragcoord
;
2626 bool PostDepthCoverage
;
2630 * Fragment shader state from GLSL 1.50 layout qualifiers.
2632 bool origin_upper_left
;
2633 bool pixel_center_integer
;
2636 * Whether bindless_sampler/bindless_image, and respectively
2637 * bound_sampler/bound_image are declared at global scope as defined by
2638 * ARB_bindless_texture.
2640 bool bindless_sampler
;
2641 bool bindless_image
;
2645 /** Global xfb_stride out qualifier if any */
2646 GLuint TransformFeedbackBufferStride
[MAX_FEEDBACK_BUFFERS
];
2648 struct gl_shader_info info
;
2652 struct gl_uniform_buffer_variable
2657 * Name of the uniform as seen by glGetUniformIndices.
2659 * glGetUniformIndices requires that the block instance index \b not be
2660 * present in the name of queried uniforms.
2663 * \c gl_uniform_buffer_variable::IndexName and
2664 * \c gl_uniform_buffer_variable::Name may point to identical storage.
2668 const struct glsl_type
*Type
;
2669 unsigned int Offset
;
2674 struct gl_uniform_block
2676 /** Declared name of the uniform block */
2679 /** Array of supplemental information about UBO ir_variables. */
2680 struct gl_uniform_buffer_variable
*Uniforms
;
2684 * Index (GL_UNIFORM_BLOCK_BINDING) into ctx->UniformBufferBindings[] to use
2685 * with glBindBufferBase to bind a buffer object to this uniform block.
2690 * Minimum size (in bytes) of a buffer object to back this uniform buffer
2691 * (GL_UNIFORM_BLOCK_DATA_SIZE).
2693 GLuint UniformBufferSize
;
2695 /** Stages that reference this block */
2699 * Linearized array index for uniform block instance arrays
2701 * Given a uniform block instance array declared with size
2702 * blk[s_0][s_1]..[s_m], the block referenced by blk[i_0][i_1]..[i_m] will
2703 * have the linearized array index
2706 * i_m + ∑ i_j * ∏ s_k
2709 * For a uniform block instance that is not an array, this is always 0.
2711 uint8_t linearized_array_index
;
2714 * Layout specified in the shader
2716 * This isn't accessible through the API, but it is used while
2717 * cross-validating uniform blocks.
2719 enum glsl_interface_packing _Packing
;
2720 GLboolean _RowMajor
;
2724 * Structure that represents a reference to an atomic buffer from some
2727 struct gl_active_atomic_buffer
2729 /** Uniform indices of the atomic counters declared within it. */
2733 /** Binding point index associated with it. */
2736 /** Minimum reasonable size it is expected to have. */
2739 /** Shader stages making use of it. */
2740 GLboolean StageReferences
[MESA_SHADER_STAGES
];
2744 * Data container for shader queries. This holds only the minimal
2745 * amount of required information for resource queries to work.
2747 struct gl_shader_variable
2750 * Declared type of the variable
2752 const struct glsl_type
*type
;
2755 * If the variable is in an interface block, this is the type of the block.
2757 const struct glsl_type
*interface_type
;
2760 * For variables inside structs (possibly recursively), this is the
2761 * outermost struct type.
2763 const struct glsl_type
*outermost_struct_type
;
2766 * Declared name of the variable
2771 * Storage location of the base of this variable
2773 * The precise meaning of this field depends on the nature of the variable.
2775 * - Vertex shader input: one of the values from \c gl_vert_attrib.
2776 * - Vertex shader output: one of the values from \c gl_varying_slot.
2777 * - Geometry shader input: one of the values from \c gl_varying_slot.
2778 * - Geometry shader output: one of the values from \c gl_varying_slot.
2779 * - Fragment shader input: one of the values from \c gl_varying_slot.
2780 * - Fragment shader output: one of the values from \c gl_frag_result.
2781 * - Uniforms: Per-stage uniform slot number for default uniform block.
2782 * - Uniforms: Index within the uniform block definition for UBO members.
2783 * - Non-UBO Uniforms: explicit location until linking then reused to
2784 * store uniform slot number.
2785 * - Other: This field is not currently used.
2787 * If the variable is a uniform, shader input, or shader output, and the
2788 * slot has not been assigned, the value will be -1.
2793 * Specifies the first component the variable is stored in as per
2794 * ARB_enhanced_layouts.
2796 unsigned component
:2;
2799 * Output index for dual source blending.
2802 * The GLSL spec only allows the values 0 or 1 for the index in \b dual
2808 * Specifies whether a shader input/output is per-patch in tessellation
2814 * Storage class of the variable.
2816 * \sa (n)ir_variable_mode
2821 * Interpolation mode for shader inputs / outputs
2823 * \sa glsl_interp_mode
2825 unsigned interpolation
:2;
2828 * Was the location explicitly set in the shader?
2830 * If the location is explicitly set in the shader, it \b cannot be changed
2831 * by the linker or by the API (e.g., calls to \c glBindAttribLocation have
2834 unsigned explicit_location
:1;
2837 * Precision qualifier.
2839 unsigned precision
:2;
2843 * Active resource in a gl_shader_program
2845 struct gl_program_resource
2847 GLenum Type
; /** Program interface type. */
2848 const void *Data
; /** Pointer to resource associated data structure. */
2849 uint8_t StageReferences
; /** Bitmask of shader stage references. */
2853 * Link status enum. linking_skipped is used to indicate linking
2854 * was skipped due to the shader being loaded from the on-disk cache.
2858 linking_failure
= 0,
2864 * A data structure to be shared by gl_shader_program and gl_program.
2866 struct gl_shader_program_data
2868 GLint RefCount
; /**< Reference count */
2870 /** SHA1 hash of linked shader program */
2871 unsigned char sha1
[20];
2873 unsigned NumUniformStorage
;
2874 unsigned NumHiddenUniforms
;
2875 struct gl_uniform_storage
*UniformStorage
;
2877 unsigned NumUniformBlocks
;
2878 unsigned NumShaderStorageBlocks
;
2880 struct gl_uniform_block
*UniformBlocks
;
2881 struct gl_uniform_block
*ShaderStorageBlocks
;
2883 struct gl_active_atomic_buffer
*AtomicBuffers
;
2884 unsigned NumAtomicBuffers
;
2886 /* Shader cache variables used during restore */
2887 unsigned NumUniformDataSlots
;
2888 union gl_constant_value
*UniformDataSlots
;
2890 GLboolean Validated
;
2892 /** List of all active resources after linking. */
2893 struct gl_program_resource
*ProgramResourceList
;
2894 unsigned NumProgramResourceList
;
2896 enum gl_link_status LinkStatus
; /**< GL_LINK_STATUS */
2899 unsigned Version
; /**< GLSL version used for linking */
2901 /* Mask of stages this program was linked against */
2902 unsigned linked_stages
;
2906 * A GLSL program object.
2907 * Basically a linked collection of vertex and fragment shaders.
2909 struct gl_shader_program
2911 GLenum Type
; /**< Always GL_SHADER_PROGRAM (internal token) */
2912 GLuint Name
; /**< aka handle or ID */
2913 GLchar
*Label
; /**< GL_KHR_debug */
2914 GLint RefCount
; /**< Reference count */
2915 GLboolean DeletePending
;
2918 * Is the application intending to glGetProgramBinary this program?
2920 GLboolean BinaryRetreivableHint
;
2923 * Indicates whether program can be bound for individual pipeline stages
2924 * using UseProgramStages after it is next linked.
2926 GLboolean SeparateShader
;
2928 GLuint NumShaders
; /**< number of attached shaders */
2929 struct gl_shader
**Shaders
; /**< List of attached the shaders */
2932 * User-defined attribute bindings
2934 * These are set via \c glBindAttribLocation and are used to direct the
2935 * GLSL linker. These are \b not the values used in the compiled shader,
2936 * and they are \b not the values returned by \c glGetAttribLocation.
2938 struct string_to_uint_map
*AttributeBindings
;
2941 * User-defined fragment data bindings
2943 * These are set via \c glBindFragDataLocation and are used to direct the
2944 * GLSL linker. These are \b not the values used in the compiled shader,
2945 * and they are \b not the values returned by \c glGetFragDataLocation.
2947 struct string_to_uint_map
*FragDataBindings
;
2948 struct string_to_uint_map
*FragDataIndexBindings
;
2951 * Transform feedback varyings last specified by
2952 * glTransformFeedbackVaryings().
2954 * For the current set of transform feedback varyings used for transform
2955 * feedback output, see LinkedTransformFeedback.
2959 /** Global xfb_stride out qualifier if any */
2960 GLuint BufferStride
[MAX_FEEDBACK_BUFFERS
];
2962 GLchar
**VaryingNames
; /**< Array [NumVarying] of char * */
2963 } TransformFeedback
;
2965 struct gl_program
*last_vert_prog
;
2967 /** Post-link gl_FragDepth layout for ARB_conservative_depth. */
2968 enum gl_frag_depth_layout FragDepthLayout
;
2971 * Geometry shader state - copied into gl_program by
2972 * _mesa_copy_linked_program_data().
2977 bool UsesEndPrimitive
;
2982 * Compute shader state - copied into gl_program by
2983 * _mesa_copy_linked_program_data().
2987 * Size of shared variables accessed by the compute shader.
2989 unsigned SharedSize
;
2992 /** Data shared by gl_program and gl_shader_program */
2993 struct gl_shader_program_data
*data
;
2996 * Mapping from GL uniform locations returned by \c glUniformLocation to
2997 * UniformStorage entries. Arrays will have multiple contiguous slots
2998 * in the UniformRemapTable, all pointing to the same UniformStorage entry.
3000 unsigned NumUniformRemapTable
;
3001 struct gl_uniform_storage
**UniformRemapTable
;
3004 * Sometimes there are empty slots left over in UniformRemapTable after we
3005 * allocate slots to explicit locations. This list stores the blocks of
3006 * continuous empty slots inside UniformRemapTable.
3008 struct exec_list EmptyUniformLocations
;
3011 * Total number of explicit uniform location including inactive uniforms.
3013 unsigned NumExplicitUniformLocations
;
3016 * Map of active uniform names to locations
3018 * Maps any active uniform that is not an array element to a location.
3019 * Each active uniform, including individual structure members will appear
3020 * in this map. This roughly corresponds to the set of names that would be
3021 * enumerated by \c glGetActiveUniform.
3023 struct string_to_uint_map
*UniformHash
;
3025 GLboolean SamplersValidated
; /**< Samplers validated against texture units? */
3027 bool IsES
; /**< True if this program uses GLSL ES */
3030 * Per-stage shaders resulting from the first stage of linking.
3032 * Set of linked shaders for this program. The array is accessed using the
3033 * \c MESA_SHADER_* defines. Entries for non-existent stages will be
3036 struct gl_linked_shader
*_LinkedShaders
[MESA_SHADER_STAGES
];
3038 /* True if any of the fragment shaders attached to this program use:
3039 * #extension ARB_fragment_coord_conventions: enable
3041 GLboolean ARB_fragment_coord_conventions_enable
;
3045 #define GLSL_DUMP 0x1 /**< Dump shaders to stdout */
3046 #define GLSL_LOG 0x2 /**< Write shaders to files */
3047 #define GLSL_UNIFORMS 0x4 /**< Print glUniform calls */
3048 #define GLSL_NOP_VERT 0x8 /**< Force no-op vertex shaders */
3049 #define GLSL_NOP_FRAG 0x10 /**< Force no-op fragment shaders */
3050 #define GLSL_USE_PROG 0x20 /**< Log glUseProgram calls */
3051 #define GLSL_REPORT_ERRORS 0x40 /**< Print compilation errors */
3052 #define GLSL_DUMP_ON_ERROR 0x80 /**< Dump shaders to stderr on compile error */
3053 #define GLSL_CACHE_INFO 0x100 /**< Print debug information about shader cache */
3054 #define GLSL_CACHE_FALLBACK 0x200 /**< Force shader cache fallback paths */
3058 * Context state for GLSL vertex/fragment shaders.
3059 * Extended to support pipeline object
3061 struct gl_pipeline_object
3063 /** Name of the pipeline object as received from glGenProgramPipelines.
3064 * It would be 0 for shaders without separate shader objects.
3070 GLchar
*Label
; /**< GL_KHR_debug */
3073 * Programs used for rendering
3075 * There is a separate program set for each shader stage.
3077 struct gl_program
*CurrentProgram
[MESA_SHADER_STAGES
];
3079 struct gl_shader_program
*ReferencedPrograms
[MESA_SHADER_STAGES
];
3082 * Program used by glUniform calls.
3084 * Explicitly set by \c glUseProgram and \c glActiveProgramEXT.
3086 struct gl_shader_program
*ActiveProgram
;
3088 GLbitfield Flags
; /**< Mask of GLSL_x flags */
3090 GLboolean EverBound
; /**< Has the pipeline object been created */
3092 GLboolean Validated
; /**< Pipeline Validation status */
3098 * Context state for GLSL pipeline shaders.
3100 struct gl_pipeline_shader_state
3102 /** Currently bound pipeline object. See _mesa_BindProgramPipeline() */
3103 struct gl_pipeline_object
*Current
;
3105 /* Default Object to ensure that _Shader is never NULL */
3106 struct gl_pipeline_object
*Default
;
3108 /** Pipeline objects */
3109 struct _mesa_HashTable
*Objects
;
3113 * Compiler options for a single GLSL shaders type
3115 struct gl_shader_compiler_options
3117 /** Driver-selectable options: */
3118 GLboolean EmitNoLoops
;
3119 GLboolean EmitNoCont
; /**< Emit CONT opcode? */
3120 GLboolean EmitNoMainReturn
; /**< Emit CONT/RET opcodes? */
3121 GLboolean EmitNoPow
; /**< Emit POW opcodes? */
3122 GLboolean EmitNoSat
; /**< Emit SAT opcodes? */
3123 GLboolean LowerCombinedClipCullDistance
; /** Lower gl_ClipDistance and
3124 * gl_CullDistance together from
3125 * float[8] to vec4[2]
3129 * \name Forms of indirect addressing the driver cannot do.
3132 GLboolean EmitNoIndirectInput
; /**< No indirect addressing of inputs */
3133 GLboolean EmitNoIndirectOutput
; /**< No indirect addressing of outputs */
3134 GLboolean EmitNoIndirectTemp
; /**< No indirect addressing of temps */
3135 GLboolean EmitNoIndirectUniform
; /**< No indirect addressing of constants */
3136 GLboolean EmitNoIndirectSampler
; /**< No indirect addressing of samplers */
3139 GLuint MaxIfDepth
; /**< Maximum nested IF blocks */
3140 GLuint MaxUnrollIterations
;
3143 * Optimize code for array of structures backends.
3145 * This is a proxy for:
3146 * - preferring DP4 instructions (rather than MUL/MAD) for
3147 * matrix * vector operations, such as position transformation.
3149 GLboolean OptimizeForAOS
;
3151 GLboolean LowerBufferInterfaceBlocks
; /**< Lower UBO and SSBO access to intrinsics. */
3153 /** Clamp UBO and SSBO block indices so they don't go out-of-bounds. */
3154 GLboolean ClampBlockIndicesToArrayBounds
;
3156 const struct nir_shader_compiler_options
*NirOptions
;
3161 * Occlusion/timer query object.
3163 struct gl_query_object
3165 GLenum Target
; /**< The query target, when active */
3166 GLuint Id
; /**< hash table ID/name */
3167 GLchar
*Label
; /**< GL_KHR_debug */
3168 GLuint64EXT Result
; /**< the counter */
3169 GLboolean Active
; /**< inside Begin/EndQuery */
3170 GLboolean Ready
; /**< result is ready? */
3171 GLboolean EverBound
;/**< has query object ever been bound */
3172 GLuint Stream
; /**< The stream */
3177 * Context state for query objects.
3179 struct gl_query_state
3181 struct _mesa_HashTable
*QueryObjects
;
3182 struct gl_query_object
*CurrentOcclusionObject
; /* GL_ARB_occlusion_query */
3183 struct gl_query_object
*CurrentTimerObject
; /* GL_EXT_timer_query */
3185 /** GL_NV_conditional_render */
3186 struct gl_query_object
*CondRenderQuery
;
3188 /** GL_EXT_transform_feedback */
3189 struct gl_query_object
*PrimitivesGenerated
[MAX_VERTEX_STREAMS
];
3190 struct gl_query_object
*PrimitivesWritten
[MAX_VERTEX_STREAMS
];
3192 /** GL_ARB_transform_feedback_overflow_query */
3193 struct gl_query_object
*TransformFeedbackOverflow
[MAX_VERTEX_STREAMS
];
3194 struct gl_query_object
*TransformFeedbackOverflowAny
;
3196 /** GL_ARB_timer_query */
3197 struct gl_query_object
*TimeElapsed
;
3199 /** GL_ARB_pipeline_statistics_query */
3200 struct gl_query_object
*pipeline_stats
[MAX_PIPELINE_STATISTICS
];
3202 GLenum CondRenderMode
;
3206 /** Sync object state */
3207 struct gl_sync_object
3209 GLuint Name
; /**< Fence name */
3210 GLint RefCount
; /**< Reference count */
3211 GLchar
*Label
; /**< GL_KHR_debug */
3212 GLboolean DeletePending
; /**< Object was deleted while there were still
3213 * live references (e.g., sync not yet finished)
3215 GLenum SyncCondition
;
3216 GLbitfield Flags
; /**< Flags passed to glFenceSync */
3217 GLuint StatusFlag
:1; /**< Has the sync object been signaled? */
3222 * State which can be shared by multiple contexts:
3224 struct gl_shared_state
3226 simple_mtx_t Mutex
; /**< for thread safety */
3227 GLint RefCount
; /**< Reference count */
3228 struct _mesa_HashTable
*DisplayList
; /**< Display lists hash table */
3229 struct _mesa_HashTable
*BitmapAtlas
; /**< For optimized glBitmap text */
3230 struct _mesa_HashTable
*TexObjects
; /**< Texture objects hash table */
3232 /** Default texture objects (shared by all texture units) */
3233 struct gl_texture_object
*DefaultTex
[NUM_TEXTURE_TARGETS
];
3235 /** Fallback texture used when a bound texture is incomplete */
3236 struct gl_texture_object
*FallbackTex
[NUM_TEXTURE_TARGETS
];
3239 * \name Thread safety and statechange notification for texture
3242 * \todo Improve the granularity of locking.
3245 mtx_t TexMutex
; /**< texobj thread safety */
3246 GLuint TextureStateStamp
; /**< state notification for shared tex */
3249 /** Default buffer object for vertex arrays that aren't in VBOs */
3250 struct gl_buffer_object
*NullBufferObj
;
3253 * \name Vertex/geometry/fragment programs
3256 struct _mesa_HashTable
*Programs
; /**< All vertex/fragment programs */
3257 struct gl_program
*DefaultVertexProgram
;
3258 struct gl_program
*DefaultFragmentProgram
;
3261 /* GL_ATI_fragment_shader */
3262 struct _mesa_HashTable
*ATIShaders
;
3263 struct ati_fragment_shader
*DefaultFragmentShader
;
3265 struct _mesa_HashTable
*BufferObjects
;
3267 /** Table of both gl_shader and gl_shader_program objects */
3268 struct _mesa_HashTable
*ShaderObjects
;
3270 /* GL_EXT_framebuffer_object */
3271 struct _mesa_HashTable
*RenderBuffers
;
3272 struct _mesa_HashTable
*FrameBuffers
;
3275 struct set
*SyncObjects
;
3277 /** GL_ARB_sampler_objects */
3278 struct _mesa_HashTable
*SamplerObjects
;
3280 /* GL_ARB_bindless_texture */
3281 struct hash_table_u64
*TextureHandles
;
3282 struct hash_table_u64
*ImageHandles
;
3283 mtx_t HandlesMutex
; /**< For texture/image handles safety */
3286 * Some context in this share group was affected by a GPU reset
3288 * On the next call to \c glGetGraphicsResetStatus, contexts that have not
3289 * been affected by a GPU reset must also return
3290 * \c GL_INNOCENT_CONTEXT_RESET_ARB.
3292 * Once this field becomes true, it is never reset to false.
3294 bool ShareGroupReset
;
3296 /** EXT_external_objects */
3297 struct _mesa_HashTable
*MemoryObjects
;
3304 * Renderbuffers represent drawing surfaces such as color, depth and/or
3305 * stencil. A framebuffer object has a set of renderbuffers.
3306 * Drivers will typically derive subclasses of this type.
3308 struct gl_renderbuffer
3310 simple_mtx_t Mutex
; /**< for thread safety */
3311 GLuint ClassID
; /**< Useful for drivers */
3313 GLchar
*Label
; /**< GL_KHR_debug */
3315 GLuint Width
, Height
;
3317 GLboolean Purgeable
; /**< Is the buffer purgeable under memory pressure? */
3318 GLboolean AttachedAnytime
; /**< TRUE if it was attached to a framebuffer */
3320 * True for renderbuffers that wrap textures, giving the driver a chance to
3321 * flush render caches through the FinishRenderTexture hook.
3323 * Drivers may also set this on renderbuffers other than those generated by
3324 * glFramebufferTexture(), though it means FinishRenderTexture() would be
3325 * called without a rb->TexImage.
3327 GLboolean NeedsFinishRenderTexture
;
3328 GLubyte NumSamples
; /**< zero means not multisampled */
3329 GLenum InternalFormat
; /**< The user-specified format */
3330 GLenum _BaseFormat
; /**< Either GL_RGB, GL_RGBA, GL_DEPTH_COMPONENT or
3331 GL_STENCIL_INDEX. */
3332 mesa_format Format
; /**< The actual renderbuffer memory format */
3334 * Pointer to the texture image if this renderbuffer wraps a texture,
3337 * Note that the reference on the gl_texture_object containing this
3338 * TexImage is held by the gl_renderbuffer_attachment.
3340 struct gl_texture_image
*TexImage
;
3342 /** Delete this renderbuffer */
3343 void (*Delete
)(struct gl_context
*ctx
, struct gl_renderbuffer
*rb
);
3345 /** Allocate new storage for this renderbuffer */
3346 GLboolean (*AllocStorage
)(struct gl_context
*ctx
,
3347 struct gl_renderbuffer
*rb
,
3348 GLenum internalFormat
,
3349 GLuint width
, GLuint height
);
3354 * A renderbuffer attachment points to either a texture object (and specifies
3355 * a mipmap level, cube face or 3D texture slice) or points to a renderbuffer.
3357 struct gl_renderbuffer_attachment
3359 GLenum Type
; /**< \c GL_NONE or \c GL_TEXTURE or \c GL_RENDERBUFFER_EXT */
3363 * If \c Type is \c GL_RENDERBUFFER_EXT, this stores a pointer to the
3364 * application supplied renderbuffer object.
3366 struct gl_renderbuffer
*Renderbuffer
;
3369 * If \c Type is \c GL_TEXTURE, this stores a pointer to the application
3370 * supplied texture object.
3372 struct gl_texture_object
*Texture
;
3373 GLuint TextureLevel
; /**< Attached mipmap level. */
3374 GLuint CubeMapFace
; /**< 0 .. 5, for cube map textures. */
3375 GLuint Zoffset
; /**< Slice for 3D textures, or layer for both 1D
3376 * and 2D array textures */
3382 * A framebuffer is a collection of renderbuffers (color, depth, stencil, etc).
3383 * In C++ terms, think of this as a base class from which device drivers
3384 * will make derived classes.
3386 struct gl_framebuffer
3388 simple_mtx_t Mutex
; /**< for thread safety */
3390 * If zero, this is a window system framebuffer. If non-zero, this
3391 * is a FBO framebuffer; note that for some devices (i.e. those with
3392 * a natural pixel coordinate system for FBOs that differs from the
3393 * OpenGL/Mesa coordinate system), this means that the viewport,
3394 * polygon face orientation, and polygon stipple will have to be inverted.
3399 GLchar
*Label
; /**< GL_KHR_debug */
3401 GLboolean DeletePending
;
3404 * The framebuffer's visual. Immutable if this is a window system buffer.
3405 * Computed from attachments if user-made FBO.
3407 struct gl_config Visual
;
3410 * Size of frame buffer in pixels. If there are no attachments, then both
3413 GLuint Width
, Height
;
3416 * In the case that the framebuffer has no attachment (i.e.
3417 * GL_ARB_framebuffer_no_attachments) then the geometry of
3418 * the framebuffer is specified by the default values.
3421 GLuint Width
, Height
, Layers
, NumSamples
;
3422 GLboolean FixedSampleLocations
;
3423 /* Derived from NumSamples by the driver so that it can choose a valid
3424 * value for the hardware.
3429 /** \name Drawing bounds (Intersection of buffer size and scissor box)
3430 * The drawing region is given by [_Xmin, _Xmax) x [_Ymin, _Ymax),
3431 * (inclusive for _Xmin and _Ymin while exclusive for _Xmax and _Ymax)
3438 /** \name Derived Z buffer stuff */
3440 GLuint _DepthMax
; /**< Max depth buffer value */
3441 GLfloat _DepthMaxF
; /**< Float max depth buffer value */
3442 GLfloat _MRD
; /**< minimum resolvable difference in Z values */
3445 /** One of the GL_FRAMEBUFFER_(IN)COMPLETE_* tokens */
3448 /** Whether one of Attachment has Type != GL_NONE
3449 * NOTE: the values for Width and Height are set to 0 in case of having
3450 * no attachments, a backend driver supporting the extension
3451 * GL_ARB_framebuffer_no_attachments must check for the flag _HasAttachments
3452 * and if GL_FALSE, must then use the values in DefaultGeometry to initialize
3453 * its viewport, scissor and so on (in particular _Xmin, _Xmax, _Ymin and
3454 * _Ymax do NOT take into account _HasAttachments being false). To get the
3455 * geometry of the framebuffer, the helper functions
3456 * _mesa_geometric_width(),
3457 * _mesa_geometric_height(),
3458 * _mesa_geometric_samples() and
3459 * _mesa_geometric_layers()
3460 * are available that check _HasAttachments.
3462 bool _HasAttachments
;
3464 GLbitfield _IntegerBuffers
; /**< Which color buffers are integer valued */
3466 /* ARB_color_buffer_float */
3467 GLboolean _AllColorBuffersFixedPoint
; /* no integer, no float */
3468 GLboolean _HasSNormOrFloatColorBuffer
;
3471 * The maximum number of layers in the framebuffer, or 0 if the framebuffer
3472 * is not layered. For cube maps and cube map arrays, each cube face
3473 * counts as a layer. As the case for Width, Height a backend driver
3474 * supporting GL_ARB_framebuffer_no_attachments must use DefaultGeometry
3475 * in the case that _HasAttachments is false
3477 GLuint MaxNumLayers
;
3479 /** Array of all renderbuffer attachments, indexed by BUFFER_* tokens. */
3480 struct gl_renderbuffer_attachment Attachment
[BUFFER_COUNT
];
3482 /* In unextended OpenGL these vars are part of the GL_COLOR_BUFFER
3483 * attribute group and GL_PIXEL attribute group, respectively.
3485 GLenum ColorDrawBuffer
[MAX_DRAW_BUFFERS
];
3486 GLenum ColorReadBuffer
;
3488 /** Computed from ColorDraw/ReadBuffer above */
3489 GLuint _NumColorDrawBuffers
;
3490 gl_buffer_index _ColorDrawBufferIndexes
[MAX_DRAW_BUFFERS
];
3491 gl_buffer_index _ColorReadBufferIndex
;
3492 struct gl_renderbuffer
*_ColorDrawBuffers
[MAX_DRAW_BUFFERS
];
3493 struct gl_renderbuffer
*_ColorReadBuffer
;
3495 /** Delete this framebuffer */
3496 void (*Delete
)(struct gl_framebuffer
*fb
);
3501 * Precision info for shader datatypes. See glGetShaderPrecisionFormat().
3505 GLushort RangeMin
; /**< min value exponent */
3506 GLushort RangeMax
; /**< max value exponent */
3507 GLushort Precision
; /**< number of mantissa bits */
3512 * Limits for vertex, geometry and fragment programs/shaders.
3514 struct gl_program_constants
3516 /* logical limits */
3517 GLuint MaxInstructions
;
3518 GLuint MaxAluInstructions
;
3519 GLuint MaxTexInstructions
;
3520 GLuint MaxTexIndirections
;
3523 GLuint MaxAddressRegs
;
3524 GLuint MaxAddressOffset
; /**< [-MaxAddressOffset, MaxAddressOffset-1] */
3525 GLuint MaxParameters
;
3526 GLuint MaxLocalParams
;
3527 GLuint MaxEnvParams
;
3528 /* native/hardware limits */
3529 GLuint MaxNativeInstructions
;
3530 GLuint MaxNativeAluInstructions
;
3531 GLuint MaxNativeTexInstructions
;
3532 GLuint MaxNativeTexIndirections
;
3533 GLuint MaxNativeAttribs
;
3534 GLuint MaxNativeTemps
;
3535 GLuint MaxNativeAddressRegs
;
3536 GLuint MaxNativeParameters
;
3538 GLuint MaxUniformComponents
; /**< Usually == MaxParameters * 4 */
3541 * \name Per-stage input / output limits
3543 * Previous to OpenGL 3.2, the intrastage data limits were advertised with
3544 * a single value: GL_MAX_VARYING_COMPONENTS (GL_MAX_VARYING_VECTORS in
3545 * ES). This is stored as \c gl_constants::MaxVarying.
3547 * Starting with OpenGL 3.2, the limits are advertised with per-stage
3548 * variables. Each stage as a certain number of outputs that it can feed
3549 * to the next stage and a certain number inputs that it can consume from
3550 * the previous stage.
3552 * Vertex shader inputs do not participate this in this accounting.
3553 * These are tracked exclusively by \c gl_program_constants::MaxAttribs.
3555 * Fragment shader outputs do not participate this in this accounting.
3556 * These are tracked exclusively by \c gl_constants::MaxDrawBuffers.
3559 GLuint MaxInputComponents
;
3560 GLuint MaxOutputComponents
;
3563 /* ES 2.0 and GL_ARB_ES2_compatibility */
3564 struct gl_precision LowFloat
, MediumFloat
, HighFloat
;
3565 struct gl_precision LowInt
, MediumInt
, HighInt
;
3566 /* GL_ARB_uniform_buffer_object */
3567 GLuint MaxUniformBlocks
;
3568 GLuint MaxCombinedUniformComponents
;
3569 GLuint MaxTextureImageUnits
;
3571 /* GL_ARB_shader_atomic_counters */
3572 GLuint MaxAtomicBuffers
;
3573 GLuint MaxAtomicCounters
;
3575 /* GL_ARB_shader_image_load_store */
3576 GLuint MaxImageUniforms
;
3578 /* GL_ARB_shader_storage_buffer_object */
3579 GLuint MaxShaderStorageBlocks
;
3584 * Constants which may be overridden by device driver during context creation
3585 * but are never changed after that.
3589 GLuint MaxTextureMbytes
; /**< Max memory per image, in MB */
3590 GLuint MaxTextureLevels
; /**< Max mipmap levels. */
3591 GLuint Max3DTextureLevels
; /**< Max mipmap levels for 3D textures */
3592 GLuint MaxCubeTextureLevels
; /**< Max mipmap levels for cube textures */
3593 GLuint MaxArrayTextureLayers
; /**< Max layers in array textures */
3594 GLuint MaxTextureRectSize
; /**< Max rectangle texture size, in pixes */
3595 GLuint MaxTextureCoordUnits
;
3596 GLuint MaxCombinedTextureImageUnits
;
3597 GLuint MaxTextureUnits
; /**< = MIN(CoordUnits, FragmentProgram.ImageUnits) */
3598 GLfloat MaxTextureMaxAnisotropy
; /**< GL_EXT_texture_filter_anisotropic */
3599 GLfloat MaxTextureLodBias
; /**< GL_EXT_texture_lod_bias */
3600 GLuint MaxTextureBufferSize
; /**< GL_ARB_texture_buffer_object */
3602 GLuint TextureBufferOffsetAlignment
; /**< GL_ARB_texture_buffer_range */
3604 GLuint MaxArrayLockSize
;
3608 GLfloat MinPointSize
, MaxPointSize
; /**< aliased */
3609 GLfloat MinPointSizeAA
, MaxPointSizeAA
; /**< antialiased */
3610 GLfloat PointSizeGranularity
;
3611 GLfloat MinLineWidth
, MaxLineWidth
; /**< aliased */
3612 GLfloat MinLineWidthAA
, MaxLineWidthAA
; /**< antialiased */
3613 GLfloat LineWidthGranularity
;
3615 GLuint MaxClipPlanes
;
3617 GLfloat MaxShininess
; /**< GL_NV_light_max_exponent */
3618 GLfloat MaxSpotExponent
; /**< GL_NV_light_max_exponent */
3620 GLuint MaxViewportWidth
, MaxViewportHeight
;
3621 GLuint MaxViewports
; /**< GL_ARB_viewport_array */
3622 GLuint ViewportSubpixelBits
; /**< GL_ARB_viewport_array */
3626 } ViewportBounds
; /**< GL_ARB_viewport_array */
3627 GLuint MaxWindowRectangles
; /**< GL_EXT_window_rectangles */
3629 struct gl_program_constants Program
[MESA_SHADER_STAGES
];
3630 GLuint MaxProgramMatrices
;
3631 GLuint MaxProgramMatrixStackDepth
;
3634 GLuint SamplesPassed
;
3637 GLuint PrimitivesGenerated
;
3638 GLuint PrimitivesWritten
;
3639 GLuint VerticesSubmitted
;
3640 GLuint PrimitivesSubmitted
;
3641 GLuint VsInvocations
;
3643 GLuint TessInvocations
;
3644 GLuint GsInvocations
;
3645 GLuint GsPrimitives
;
3646 GLuint FsInvocations
;
3647 GLuint ComputeInvocations
;
3648 GLuint ClInPrimitives
;
3649 GLuint ClOutPrimitives
;
3652 GLuint MaxDrawBuffers
; /**< GL_ARB_draw_buffers */
3654 GLuint MaxColorAttachments
; /**< GL_EXT_framebuffer_object */
3655 GLuint MaxRenderbufferSize
; /**< GL_EXT_framebuffer_object */
3656 GLuint MaxSamples
; /**< GL_ARB_framebuffer_object */
3659 * GL_ARB_framebuffer_no_attachments
3661 GLuint MaxFramebufferWidth
;
3662 GLuint MaxFramebufferHeight
;
3663 GLuint MaxFramebufferLayers
;
3664 GLuint MaxFramebufferSamples
;
3666 /** Number of varying vectors between any two shader stages. */
3670 * GL_ARB_uniform_buffer_object
3672 GLuint MaxCombinedUniformBlocks
;
3673 GLuint MaxUniformBufferBindings
;
3674 GLuint MaxUniformBlockSize
;
3675 GLuint UniformBufferOffsetAlignment
;
3679 * GL_ARB_shader_storage_buffer_object
3681 GLuint MaxCombinedShaderStorageBlocks
;
3682 GLuint MaxShaderStorageBufferBindings
;
3683 GLuint MaxShaderStorageBlockSize
;
3684 GLuint ShaderStorageBufferOffsetAlignment
;
3688 * GL_ARB_explicit_uniform_location
3690 GLuint MaxUserAssignableUniformLocations
;
3692 /** geometry shader */
3693 GLuint MaxGeometryOutputVertices
;
3694 GLuint MaxGeometryTotalOutputComponents
;
3696 GLuint GLSLVersion
; /**< Desktop GLSL version supported (ex: 120 = 1.20) */
3699 * Changes default GLSL extension behavior from "error" to "warn". It's out
3700 * of spec, but it can make some apps work that otherwise wouldn't.
3702 GLboolean ForceGLSLExtensionsWarn
;
3705 * If non-zero, forces GLSL shaders to behave as if they began
3706 * with "#version ForceGLSLVersion".
3708 GLuint ForceGLSLVersion
;
3711 * Allow GLSL #extension directives in the middle of shaders.
3713 GLboolean AllowGLSLExtensionDirectiveMidShader
;
3716 * Allow GLSL built-in variables to be redeclared verbatim
3718 GLboolean AllowGLSLBuiltinVariableRedeclaration
;
3721 * Allow GLSL interpolation qualifier mismatch across shader stages.
3723 GLboolean AllowGLSLCrossStageInterpolationMismatch
;
3726 * Allow creating a higher compat profile (version 3.1+) for apps that
3727 * request it. Be careful when adding that driconf option because some
3728 * features are unimplemented and might not work correctly.
3730 GLboolean AllowHigherCompatVersion
;
3733 * Force computing the absolute value for sqrt() and inversesqrt() to follow
3734 * D3D9 when apps rely on this behaviour.
3736 GLboolean ForceGLSLAbsSqrt
;
3739 * Force uninitialized variables to default to zero.
3741 GLboolean GLSLZeroInit
;
3744 * Does the driver support real 32-bit integers? (Otherwise, integers are
3745 * simulated via floats.)
3747 GLboolean NativeIntegers
;
3750 * Does VertexID count from zero or from base vertex?
3753 * If desktop GLSL 1.30 or GLSL ES 3.00 are not supported, this field is
3754 * ignored and need not be set.
3756 bool VertexID_is_zero_based
;
3759 * If the driver supports real 32-bit integers, what integer value should be
3760 * used for boolean true in uniform uploads? (Usually 1 or ~0.)
3762 GLuint UniformBooleanTrue
;
3765 * Maximum amount of time, measured in nanseconds, that the server can wait.
3767 GLuint64 MaxServerWaitTimeout
;
3769 /** GL_EXT_provoking_vertex */
3770 GLboolean QuadsFollowProvokingVertexConvention
;
3772 /** GL_ARB_viewport_array */
3773 GLenum LayerAndVPIndexProvokingVertex
;
3775 /** OpenGL version 3.0 */
3776 GLbitfield ContextFlags
; /**< Ex: GL_CONTEXT_FLAG_FORWARD_COMPATIBLE_BIT */
3778 /** OpenGL version 3.2 */
3779 GLbitfield ProfileMask
; /**< Mask of CONTEXT_x_PROFILE_BIT */
3781 /** OpenGL version 4.4 */
3782 GLuint MaxVertexAttribStride
;
3784 /** GL_EXT_transform_feedback */
3785 GLuint MaxTransformFeedbackBuffers
;
3786 GLuint MaxTransformFeedbackSeparateComponents
;
3787 GLuint MaxTransformFeedbackInterleavedComponents
;
3788 GLuint MaxVertexStreams
;
3790 /** GL_EXT_gpu_shader4 */
3791 GLint MinProgramTexelOffset
, MaxProgramTexelOffset
;
3793 /** GL_ARB_texture_gather */
3794 GLuint MinProgramTextureGatherOffset
;
3795 GLuint MaxProgramTextureGatherOffset
;
3796 GLuint MaxProgramTextureGatherComponents
;
3798 /* GL_ARB_robustness */
3799 GLenum ResetStrategy
;
3801 /* GL_KHR_robustness */
3802 GLboolean RobustAccess
;
3804 /* GL_ARB_blend_func_extended */
3805 GLuint MaxDualSourceDrawBuffers
;
3808 * Whether the implementation strips out and ignores texture borders.
3810 * Many GPU hardware implementations don't support rendering with texture
3811 * borders and mipmapped textures. (Note: not static border color, but the
3812 * old 1-pixel border around each edge). Implementations then have to do
3813 * slow fallbacks to be correct, or just ignore the border and be fast but
3814 * wrong. Setting the flag strips the border off of TexImage calls,
3815 * providing "fast but wrong" at significantly reduced driver complexity.
3817 * Texture borders are deprecated in GL 3.0.
3819 GLboolean StripTextureBorder
;
3822 * For drivers which can do a better job at eliminating unused uniforms
3823 * than the GLSL compiler.
3825 * XXX Remove these as soon as a better solution is available.
3827 GLboolean GLSLSkipStrictMaxUniformLimitCheck
;
3829 /** Whether gl_FragCoord and gl_FrontFacing are system values. */
3830 bool GLSLFragCoordIsSysVal
;
3831 bool GLSLFrontFacingIsSysVal
;
3834 * Run the minimum amount of GLSL optimizations to be able to link
3835 * shaders optimally (eliminate dead varyings and uniforms) and just do
3836 * all the necessary lowering.
3838 bool GLSLOptimizeConservatively
;
3841 * True if gl_TessLevelInner/Outer[] in the TES should be inputs
3842 * (otherwise, they're system values).
3844 bool GLSLTessLevelsAsInputs
;
3847 * Always use the GetTransformFeedbackVertexCount() driver hook, rather
3848 * than passing the transform feedback object to the drawing function.
3850 GLboolean AlwaysUseGetTransformFeedbackVertexCount
;
3852 /** GL_ARB_map_buffer_alignment */
3853 GLuint MinMapBufferAlignment
;
3856 * Disable varying packing. This is out of spec, but potentially useful
3857 * for older platforms that supports a limited number of texture
3858 * indirections--on these platforms, unpacking the varyings in the fragment
3859 * shader increases the number of texture indirections by 1, which might
3860 * make some shaders not executable at all.
3862 * Drivers that support transform feedback must set this value to GL_FALSE.
3864 GLboolean DisableVaryingPacking
;
3867 * UBOs and SSBOs can be packed tightly by the OpenGL implementation when
3868 * layout is set as shared (the default) or packed. However most Mesa drivers
3869 * just use STD140 for these layouts. This flag allows drivers to use STD430
3870 * for packed and shared layouts which allows arrays to be packed more
3873 bool UseSTD430AsDefaultPacking
;
3876 * Should meaningful names be generated for compiler temporary variables?
3878 * Generally, it is not useful to have the compiler generate "meaningful"
3879 * names for temporary variables that it creates. This can, however, be a
3880 * useful debugging aid. In Mesa debug builds or release builds when
3881 * MESA_GLSL is set at run-time, meaningful names will be generated.
3882 * Drivers can also force names to be generated by setting this field.
3883 * For example, the i965 driver may set it when INTEL_DEBUG=vs (to dump
3884 * vertex shader assembly) is set at run-time.
3886 bool GenerateTemporaryNames
;
3889 * Maximum value supported for an index in DrawElements and friends.
3891 * This must be at least (1ull<<24)-1. The default value is
3894 * \since ES 3.0 or GL_ARB_ES3_compatibility
3895 * \sa _mesa_init_constants
3897 GLuint64 MaxElementIndex
;
3900 * Disable interpretation of line continuations (lines ending with a
3901 * backslash character ('\') in GLSL source.
3903 GLboolean DisableGLSLLineContinuations
;
3905 /** GL_ARB_texture_multisample */
3906 GLint MaxColorTextureSamples
;
3907 GLint MaxDepthTextureSamples
;
3908 GLint MaxIntegerSamples
;
3911 * GL_EXT_texture_multisample_blit_scaled implementation assumes that
3912 * samples are laid out in a rectangular grid roughly corresponding to
3913 * sample locations within a pixel. Below SampleMap{2,4,8}x variables
3914 * are used to map indices of rectangular grid to sample numbers within
3915 * a pixel. This mapping of indices to sample numbers must be initialized
3916 * by the driver for the target hardware. For example, if we have the 8X
3917 * MSAA sample number layout (sample positions) for XYZ hardware:
3919 * sample indices layout sample number layout
3920 * --------- ---------
3921 * | 0 | 1 | | a | b |
3922 * --------- ---------
3923 * | 2 | 3 | | c | d |
3924 * --------- ---------
3925 * | 4 | 5 | | e | f |
3926 * --------- ---------
3927 * | 6 | 7 | | g | h |
3928 * --------- ---------
3930 * Where a,b,c,d,e,f,g,h are integers between [0-7].
3932 * Then, initialize the SampleMap8x variable for XYZ hardware as shown
3934 * SampleMap8x = {a, b, c, d, e, f, g, h};
3936 * Follow the logic for sample counts 2-8.
3938 * For 16x the sample indices layout as a 4x4 grid as follows:
3950 uint8_t SampleMap2x
[2];
3951 uint8_t SampleMap4x
[4];
3952 uint8_t SampleMap8x
[8];
3953 uint8_t SampleMap16x
[16];
3955 /** GL_ARB_shader_atomic_counters */
3956 GLuint MaxAtomicBufferBindings
;
3957 GLuint MaxAtomicBufferSize
;
3958 GLuint MaxCombinedAtomicBuffers
;
3959 GLuint MaxCombinedAtomicCounters
;
3961 /** GL_ARB_vertex_attrib_binding */
3962 GLint MaxVertexAttribRelativeOffset
;
3963 GLint MaxVertexAttribBindings
;
3965 /* GL_ARB_shader_image_load_store */
3966 GLuint MaxImageUnits
;
3967 GLuint MaxCombinedShaderOutputResources
;
3968 GLuint MaxImageSamples
;
3969 GLuint MaxCombinedImageUniforms
;
3971 /** GL_ARB_compute_shader */
3972 GLuint MaxComputeWorkGroupCount
[3]; /* Array of x, y, z dimensions */
3973 GLuint MaxComputeWorkGroupSize
[3]; /* Array of x, y, z dimensions */
3974 GLuint MaxComputeWorkGroupInvocations
;
3975 GLuint MaxComputeSharedMemorySize
;
3977 /** GL_ARB_compute_variable_group_size */
3978 GLuint MaxComputeVariableGroupSize
[3]; /* Array of x, y, z dimensions */
3979 GLuint MaxComputeVariableGroupInvocations
;
3981 /** GL_ARB_gpu_shader5 */
3982 GLfloat MinFragmentInterpolationOffset
;
3983 GLfloat MaxFragmentInterpolationOffset
;
3985 GLboolean FakeSWMSAA
;
3987 /** GL_KHR_context_flush_control */
3988 GLenum ContextReleaseBehavior
;
3990 struct gl_shader_compiler_options ShaderCompilerOptions
[MESA_SHADER_STAGES
];
3992 /** GL_ARB_tessellation_shader */
3993 GLuint MaxPatchVertices
;
3994 GLuint MaxTessGenLevel
;
3995 GLuint MaxTessPatchComponents
;
3996 GLuint MaxTessControlTotalOutputComponents
;
3997 bool LowerTessLevel
; /**< Lower gl_TessLevel* from float[n] to vecn? */
3998 bool LowerTCSPatchVerticesIn
; /**< Lower gl_PatchVerticesIn to a uniform */
3999 bool LowerTESPatchVerticesIn
; /**< Lower gl_PatchVerticesIn to a uniform */
4000 bool PrimitiveRestartForPatches
;
4001 bool LowerCsDerivedVariables
; /**< Lower gl_GlobalInvocationID and
4002 * gl_LocalInvocationIndex based on
4003 * other builtin variables. */
4005 /** GL_OES_primitive_bounding_box */
4006 bool NoPrimitiveBoundingBoxOutput
;
4008 /** GL_ARB_sparse_buffer */
4009 GLuint SparseBufferPageSize
;
4011 /** Used as an input for sha1 generation in the on-disk shader cache */
4012 unsigned char *dri_config_options_sha1
;
4014 /** When drivers are OK with mapped buffers during draw and other calls. */
4015 bool AllowMappedBuffersDuringExecution
;
4020 * Enable flag for each OpenGL extension. Different device drivers will
4021 * enable different extensions at runtime.
4023 struct gl_extensions
4025 GLboolean dummy
; /* don't remove this! */
4026 GLboolean dummy_true
; /* Set true by _mesa_init_extensions(). */
4027 GLboolean dummy_false
; /* Set false by _mesa_init_extensions(). */
4028 GLboolean ANGLE_texture_compression_dxt
;
4029 GLboolean ARB_ES2_compatibility
;
4030 GLboolean ARB_ES3_compatibility
;
4031 GLboolean ARB_ES3_1_compatibility
;
4032 GLboolean ARB_ES3_2_compatibility
;
4033 GLboolean ARB_arrays_of_arrays
;
4034 GLboolean ARB_base_instance
;
4035 GLboolean ARB_bindless_texture
;
4036 GLboolean ARB_blend_func_extended
;
4037 GLboolean ARB_buffer_storage
;
4038 GLboolean ARB_clear_texture
;
4039 GLboolean ARB_clip_control
;
4040 GLboolean ARB_color_buffer_float
;
4041 GLboolean ARB_compute_shader
;
4042 GLboolean ARB_compute_variable_group_size
;
4043 GLboolean ARB_conditional_render_inverted
;
4044 GLboolean ARB_conservative_depth
;
4045 GLboolean ARB_copy_image
;
4046 GLboolean ARB_cull_distance
;
4047 GLboolean ARB_depth_buffer_float
;
4048 GLboolean ARB_depth_clamp
;
4049 GLboolean ARB_depth_texture
;
4050 GLboolean ARB_derivative_control
;
4051 GLboolean ARB_draw_buffers_blend
;
4052 GLboolean ARB_draw_elements_base_vertex
;
4053 GLboolean ARB_draw_indirect
;
4054 GLboolean ARB_draw_instanced
;
4055 GLboolean ARB_fragment_coord_conventions
;
4056 GLboolean ARB_fragment_layer_viewport
;
4057 GLboolean ARB_fragment_program
;
4058 GLboolean ARB_fragment_program_shadow
;
4059 GLboolean ARB_fragment_shader
;
4060 GLboolean ARB_framebuffer_no_attachments
;
4061 GLboolean ARB_framebuffer_object
;
4062 GLboolean ARB_enhanced_layouts
;
4063 GLboolean ARB_explicit_attrib_location
;
4064 GLboolean ARB_explicit_uniform_location
;
4065 GLboolean ARB_gpu_shader5
;
4066 GLboolean ARB_gpu_shader_fp64
;
4067 GLboolean ARB_gpu_shader_int64
;
4068 GLboolean ARB_half_float_vertex
;
4069 GLboolean ARB_indirect_parameters
;
4070 GLboolean ARB_instanced_arrays
;
4071 GLboolean ARB_internalformat_query
;
4072 GLboolean ARB_internalformat_query2
;
4073 GLboolean ARB_map_buffer_range
;
4074 GLboolean ARB_occlusion_query
;
4075 GLboolean ARB_occlusion_query2
;
4076 GLboolean ARB_pipeline_statistics_query
;
4077 GLboolean ARB_point_sprite
;
4078 GLboolean ARB_polygon_offset_clamp
;
4079 GLboolean ARB_post_depth_coverage
;
4080 GLboolean ARB_query_buffer_object
;
4081 GLboolean ARB_robust_buffer_access_behavior
;
4082 GLboolean ARB_sample_shading
;
4083 GLboolean ARB_seamless_cube_map
;
4084 GLboolean ARB_shader_atomic_counter_ops
;
4085 GLboolean ARB_shader_atomic_counters
;
4086 GLboolean ARB_shader_ballot
;
4087 GLboolean ARB_shader_bit_encoding
;
4088 GLboolean ARB_shader_clock
;
4089 GLboolean ARB_shader_draw_parameters
;
4090 GLboolean ARB_shader_group_vote
;
4091 GLboolean ARB_shader_image_load_store
;
4092 GLboolean ARB_shader_image_size
;
4093 GLboolean ARB_shader_precision
;
4094 GLboolean ARB_shader_stencil_export
;
4095 GLboolean ARB_shader_storage_buffer_object
;
4096 GLboolean ARB_shader_texture_image_samples
;
4097 GLboolean ARB_shader_texture_lod
;
4098 GLboolean ARB_shader_viewport_layer_array
;
4099 GLboolean ARB_shading_language_packing
;
4100 GLboolean ARB_shading_language_420pack
;
4101 GLboolean ARB_shadow
;
4102 GLboolean ARB_sparse_buffer
;
4103 GLboolean ARB_stencil_texturing
;
4105 GLboolean ARB_tessellation_shader
;
4106 GLboolean ARB_texture_border_clamp
;
4107 GLboolean ARB_texture_buffer_object
;
4108 GLboolean ARB_texture_buffer_object_rgb32
;
4109 GLboolean ARB_texture_buffer_range
;
4110 GLboolean ARB_texture_compression_bptc
;
4111 GLboolean ARB_texture_compression_rgtc
;
4112 GLboolean ARB_texture_cube_map
;
4113 GLboolean ARB_texture_cube_map_array
;
4114 GLboolean ARB_texture_env_combine
;
4115 GLboolean ARB_texture_env_crossbar
;
4116 GLboolean ARB_texture_env_dot3
;
4117 GLboolean ARB_texture_filter_anisotropic
;
4118 GLboolean ARB_texture_float
;
4119 GLboolean ARB_texture_gather
;
4120 GLboolean ARB_texture_mirror_clamp_to_edge
;
4121 GLboolean ARB_texture_multisample
;
4122 GLboolean ARB_texture_non_power_of_two
;
4123 GLboolean ARB_texture_stencil8
;
4124 GLboolean ARB_texture_query_levels
;
4125 GLboolean ARB_texture_query_lod
;
4126 GLboolean ARB_texture_rg
;
4127 GLboolean ARB_texture_rgb10_a2ui
;
4128 GLboolean ARB_texture_view
;
4129 GLboolean ARB_timer_query
;
4130 GLboolean ARB_transform_feedback2
;
4131 GLboolean ARB_transform_feedback3
;
4132 GLboolean ARB_transform_feedback_instanced
;
4133 GLboolean ARB_transform_feedback_overflow_query
;
4134 GLboolean ARB_uniform_buffer_object
;
4135 GLboolean ARB_vertex_attrib_64bit
;
4136 GLboolean ARB_vertex_program
;
4137 GLboolean ARB_vertex_shader
;
4138 GLboolean ARB_vertex_type_10f_11f_11f_rev
;
4139 GLboolean ARB_vertex_type_2_10_10_10_rev
;
4140 GLboolean ARB_viewport_array
;
4141 GLboolean EXT_blend_color
;
4142 GLboolean EXT_blend_equation_separate
;
4143 GLboolean EXT_blend_func_separate
;
4144 GLboolean EXT_blend_minmax
;
4145 GLboolean EXT_depth_bounds_test
;
4146 GLboolean EXT_draw_buffers2
;
4147 GLboolean EXT_framebuffer_multisample
;
4148 GLboolean EXT_framebuffer_multisample_blit_scaled
;
4149 GLboolean EXT_framebuffer_sRGB
;
4150 GLboolean EXT_gpu_program_parameters
;
4151 GLboolean EXT_gpu_shader4
;
4152 GLboolean EXT_memory_object
;
4153 GLboolean EXT_memory_object_fd
;
4154 GLboolean EXT_packed_float
;
4155 GLboolean EXT_pixel_buffer_object
;
4156 GLboolean EXT_point_parameters
;
4157 GLboolean EXT_provoking_vertex
;
4158 GLboolean EXT_shader_integer_mix
;
4159 GLboolean EXT_shader_samples_identical
;
4160 GLboolean EXT_stencil_two_side
;
4161 GLboolean EXT_texture_array
;
4162 GLboolean EXT_texture_compression_latc
;
4163 GLboolean EXT_texture_compression_s3tc
;
4164 GLboolean EXT_texture_env_dot3
;
4165 GLboolean EXT_texture_filter_anisotropic
;
4166 GLboolean EXT_texture_integer
;
4167 GLboolean EXT_texture_mirror_clamp
;
4168 GLboolean EXT_texture_shared_exponent
;
4169 GLboolean EXT_texture_snorm
;
4170 GLboolean EXT_texture_sRGB
;
4171 GLboolean EXT_texture_sRGB_decode
;
4172 GLboolean EXT_texture_swizzle
;
4173 GLboolean EXT_texture_type_2_10_10_10_REV
;
4174 GLboolean EXT_transform_feedback
;
4175 GLboolean EXT_timer_query
;
4176 GLboolean EXT_vertex_array_bgra
;
4177 GLboolean EXT_window_rectangles
;
4178 GLboolean OES_copy_image
;
4179 GLboolean OES_primitive_bounding_box
;
4180 GLboolean OES_sample_variables
;
4181 GLboolean OES_standard_derivatives
;
4182 GLboolean OES_texture_buffer
;
4183 GLboolean OES_texture_cube_map_array
;
4184 GLboolean OES_viewport_array
;
4185 /* vendor extensions */
4186 GLboolean AMD_performance_monitor
;
4187 GLboolean AMD_pinned_memory
;
4188 GLboolean AMD_seamless_cubemap_per_texture
;
4189 GLboolean AMD_vertex_shader_layer
;
4190 GLboolean AMD_vertex_shader_viewport_index
;
4191 GLboolean ANDROID_extension_pack_es31a
;
4192 GLboolean APPLE_object_purgeable
;
4193 GLboolean ATI_meminfo
;
4194 GLboolean ATI_texture_compression_3dc
;
4195 GLboolean ATI_texture_mirror_once
;
4196 GLboolean ATI_texture_env_combine3
;
4197 GLboolean ATI_fragment_shader
;
4198 GLboolean ATI_separate_stencil
;
4199 GLboolean GREMEDY_string_marker
;
4200 GLboolean INTEL_conservative_rasterization
;
4201 GLboolean INTEL_performance_query
;
4202 GLboolean KHR_blend_equation_advanced
;
4203 GLboolean KHR_blend_equation_advanced_coherent
;
4204 GLboolean KHR_robustness
;
4205 GLboolean KHR_texture_compression_astc_hdr
;
4206 GLboolean KHR_texture_compression_astc_ldr
;
4207 GLboolean KHR_texture_compression_astc_sliced_3d
;
4208 GLboolean MESA_tile_raster_order
;
4209 GLboolean MESA_pack_invert
;
4210 GLboolean MESA_shader_framebuffer_fetch
;
4211 GLboolean MESA_shader_framebuffer_fetch_non_coherent
;
4212 GLboolean MESA_shader_integer_functions
;
4213 GLboolean MESA_ycbcr_texture
;
4214 GLboolean NV_conditional_render
;
4215 GLboolean NV_fill_rectangle
;
4216 GLboolean NV_fog_distance
;
4217 GLboolean NV_point_sprite
;
4218 GLboolean NV_primitive_restart
;
4219 GLboolean NV_texture_barrier
;
4220 GLboolean NV_texture_env_combine4
;
4221 GLboolean NV_texture_rectangle
;
4222 GLboolean NV_vdpau_interop
;
4223 GLboolean NVX_gpu_memory_info
;
4224 GLboolean TDFX_texture_compression_FXT1
;
4225 GLboolean OES_EGL_image
;
4226 GLboolean OES_draw_texture
;
4227 GLboolean OES_depth_texture_cube_map
;
4228 GLboolean OES_EGL_image_external
;
4229 GLboolean OES_texture_float
;
4230 GLboolean OES_texture_float_linear
;
4231 GLboolean OES_texture_half_float
;
4232 GLboolean OES_texture_half_float_linear
;
4233 GLboolean OES_compressed_ETC1_RGB8_texture
;
4234 GLboolean OES_geometry_shader
;
4235 GLboolean OES_texture_compression_astc
;
4236 GLboolean extension_sentinel
;
4237 /** The extension string */
4238 const GLubyte
*String
;
4239 /** Number of supported extensions */
4242 * The context version which extension helper functions compare against.
4243 * By default, the value is equal to ctx->Version. This changes to ~0
4244 * while meta is in progress.
4248 * Force-enabled, yet unrecognized, extensions.
4249 * See _mesa_one_time_init_extension_overrides()
4251 #define MAX_UNRECOGNIZED_EXTENSIONS 16
4252 const char *unrecognized_extensions
[MAX_UNRECOGNIZED_EXTENSIONS
];
4257 * A stack of matrices (projection, modelview, color, texture, etc).
4259 struct gl_matrix_stack
4261 GLmatrix
*Top
; /**< points into Stack */
4262 GLmatrix
*Stack
; /**< array [MaxDepth] of GLmatrix */
4263 unsigned StackSize
; /**< Number of elements in Stack */
4264 GLuint Depth
; /**< 0 <= Depth < MaxDepth */
4265 GLuint MaxDepth
; /**< size of Stack[] array */
4266 GLuint DirtyFlag
; /**< _NEW_MODELVIEW or _NEW_PROJECTION, for example */
4271 * \name Bits for image transfer operations
4272 * \sa __struct gl_contextRec::ImageTransferState.
4275 #define IMAGE_SCALE_BIAS_BIT 0x1
4276 #define IMAGE_SHIFT_OFFSET_BIT 0x2
4277 #define IMAGE_MAP_COLOR_BIT 0x4
4278 #define IMAGE_CLAMP_BIT 0x800
4281 /** Pixel Transfer ops */
4282 #define IMAGE_BITS (IMAGE_SCALE_BIAS_BIT | \
4283 IMAGE_SHIFT_OFFSET_BIT | \
4284 IMAGE_MAP_COLOR_BIT)
4287 * \name Bits to indicate what state has changed.
4290 #define _NEW_MODELVIEW (1u << 0) /**< gl_context::ModelView */
4291 #define _NEW_PROJECTION (1u << 1) /**< gl_context::Projection */
4292 #define _NEW_TEXTURE_MATRIX (1u << 2) /**< gl_context::TextureMatrix */
4293 #define _NEW_COLOR (1u << 3) /**< gl_context::Color */
4294 #define _NEW_DEPTH (1u << 4) /**< gl_context::Depth */
4295 #define _NEW_EVAL (1u << 5) /**< gl_context::Eval, EvalMap */
4296 #define _NEW_FOG (1u << 6) /**< gl_context::Fog */
4297 #define _NEW_HINT (1u << 7) /**< gl_context::Hint */
4298 #define _NEW_LIGHT (1u << 8) /**< gl_context::Light */
4299 #define _NEW_LINE (1u << 9) /**< gl_context::Line */
4300 #define _NEW_PIXEL (1u << 10) /**< gl_context::Pixel */
4301 #define _NEW_POINT (1u << 11) /**< gl_context::Point */
4302 #define _NEW_POLYGON (1u << 12) /**< gl_context::Polygon */
4303 #define _NEW_POLYGONSTIPPLE (1u << 13) /**< gl_context::PolygonStipple */
4304 #define _NEW_SCISSOR (1u << 14) /**< gl_context::Scissor */
4305 #define _NEW_STENCIL (1u << 15) /**< gl_context::Stencil */
4306 #define _NEW_TEXTURE_OBJECT (1u << 16) /**< gl_context::Texture (bindings only) */
4307 #define _NEW_TRANSFORM (1u << 17) /**< gl_context::Transform */
4308 #define _NEW_VIEWPORT (1u << 18) /**< gl_context::Viewport */
4309 #define _NEW_TEXTURE_STATE (1u << 19) /**< gl_context::Texture (states only) */
4310 #define _NEW_ARRAY (1u << 20) /**< gl_context::Array */
4311 #define _NEW_RENDERMODE (1u << 21) /**< gl_context::RenderMode, etc */
4312 #define _NEW_BUFFERS (1u << 22) /**< gl_context::Visual, DrawBuffer, */
4313 #define _NEW_CURRENT_ATTRIB (1u << 23) /**< gl_context::Current */
4314 #define _NEW_MULTISAMPLE (1u << 24) /**< gl_context::Multisample */
4315 #define _NEW_TRACK_MATRIX (1u << 25) /**< gl_context::VertexProgram */
4316 #define _NEW_PROGRAM (1u << 26) /**< New program/shader state */
4317 #define _NEW_PROGRAM_CONSTANTS (1u << 27)
4319 #define _NEW_FRAG_CLAMP (1u << 29)
4320 /* gap, re-use for core Mesa state only; use ctx->DriverFlags otherwise */
4321 #define _NEW_VARYING_VP_INPUTS (1u << 31) /**< gl_context::varying_vp_inputs */
4327 * Composite state flags
4330 #define _NEW_TEXTURE (_NEW_TEXTURE_OBJECT | _NEW_TEXTURE_STATE)
4332 #define _MESA_NEW_NEED_EYE_COORDS (_NEW_LIGHT | \
4333 _NEW_TEXTURE_STATE | \
4338 #define _MESA_NEW_SEPARATE_SPECULAR (_NEW_LIGHT | \
4348 /* This has to be included here. */
4353 * Display list flags.
4354 * Strictly this is a tnl-private concept, but it doesn't seem
4355 * worthwhile adding a tnl private structure just to hold this one bit
4358 #define DLIST_DANGLING_REFS 0x1
4361 /** Opaque declaration of display list payload data type */
4362 union gl_dlist_node
;
4366 * Provide a location where information about a display list can be
4367 * collected. Could be extended with driverPrivate structures,
4368 * etc. in the future.
4370 struct gl_display_list
4373 GLbitfield Flags
; /**< DLIST_x flags */
4374 GLchar
*Label
; /**< GL_KHR_debug */
4375 /** The dlist commands are in a linked list of nodes */
4376 union gl_dlist_node
*Head
;
4381 * State used during display list compilation and execution.
4383 struct gl_dlist_state
4385 struct gl_display_list
*CurrentList
; /**< List currently being compiled */
4386 union gl_dlist_node
*CurrentBlock
; /**< Pointer to current block of nodes */
4387 GLuint CurrentPos
; /**< Index into current block of nodes */
4388 GLuint CallDepth
; /**< Current recursion calling depth */
4390 GLvertexformat ListVtxfmt
;
4392 GLubyte ActiveAttribSize
[VERT_ATTRIB_MAX
];
4393 GLfloat CurrentAttrib
[VERT_ATTRIB_MAX
][4];
4395 GLubyte ActiveMaterialSize
[MAT_ATTRIB_MAX
];
4396 GLfloat CurrentMaterial
[MAT_ATTRIB_MAX
][4];
4399 /* State known to have been set by the currently-compiling display
4400 * list. Used to eliminate some redundant state changes.
4408 * These are a mapping of the GL_ARB_debug_output/GL_KHR_debug enums
4409 * to small enums suitable for use as an array index.
4412 enum mesa_debug_source
{
4413 MESA_DEBUG_SOURCE_API
,
4414 MESA_DEBUG_SOURCE_WINDOW_SYSTEM
,
4415 MESA_DEBUG_SOURCE_SHADER_COMPILER
,
4416 MESA_DEBUG_SOURCE_THIRD_PARTY
,
4417 MESA_DEBUG_SOURCE_APPLICATION
,
4418 MESA_DEBUG_SOURCE_OTHER
,
4419 MESA_DEBUG_SOURCE_COUNT
4422 enum mesa_debug_type
{
4423 MESA_DEBUG_TYPE_ERROR
,
4424 MESA_DEBUG_TYPE_DEPRECATED
,
4425 MESA_DEBUG_TYPE_UNDEFINED
,
4426 MESA_DEBUG_TYPE_PORTABILITY
,
4427 MESA_DEBUG_TYPE_PERFORMANCE
,
4428 MESA_DEBUG_TYPE_OTHER
,
4429 MESA_DEBUG_TYPE_MARKER
,
4430 MESA_DEBUG_TYPE_PUSH_GROUP
,
4431 MESA_DEBUG_TYPE_POP_GROUP
,
4432 MESA_DEBUG_TYPE_COUNT
4435 enum mesa_debug_severity
{
4436 MESA_DEBUG_SEVERITY_LOW
,
4437 MESA_DEBUG_SEVERITY_MEDIUM
,
4438 MESA_DEBUG_SEVERITY_HIGH
,
4439 MESA_DEBUG_SEVERITY_NOTIFICATION
,
4440 MESA_DEBUG_SEVERITY_COUNT
4446 * Driver-specific state flags.
4448 * These are or'd with gl_context::NewDriverState to notify a driver about
4449 * a state change. The driver sets the flags at context creation and
4450 * the meaning of the bits set is opaque to core Mesa.
4452 struct gl_driver_flags
4454 /** gl_context::Array::_DrawArrays (vertex array state) */
4457 /** gl_context::TransformFeedback::CurrentObject */
4458 uint64_t NewTransformFeedback
;
4460 /** gl_context::TransformFeedback::CurrentObject::shader_program */
4461 uint64_t NewTransformFeedbackProg
;
4463 /** gl_context::RasterDiscard */
4464 uint64_t NewRasterizerDiscard
;
4466 /** gl_context::TileRasterOrder* */
4467 uint64_t NewTileRasterOrder
;
4470 * gl_context::UniformBufferBindings
4471 * gl_shader_program::UniformBlocks
4473 uint64_t NewUniformBuffer
;
4476 * gl_context::ShaderStorageBufferBindings
4477 * gl_shader_program::ShaderStorageBlocks
4479 uint64_t NewShaderStorageBuffer
;
4481 uint64_t NewTextureBuffer
;
4484 * gl_context::AtomicBufferBindings
4486 uint64_t NewAtomicBuffer
;
4489 * gl_context::ImageUnits
4491 uint64_t NewImageUnits
;
4494 * gl_context::TessCtrlProgram::patch_default_*
4496 uint64_t NewDefaultTessLevels
;
4499 * gl_context::IntelConservativeRasterization
4501 uint64_t NewIntelConservativeRasterization
;
4504 * gl_context::Scissor::WindowRects
4506 uint64_t NewWindowRectangles
;
4508 /** gl_context::Color::sRGBEnabled */
4509 uint64_t NewFramebufferSRGB
;
4511 /** gl_context::Scissor::EnableFlags */
4512 uint64_t NewScissorTest
;
4514 /** gl_context::Scissor::ScissorArray */
4515 uint64_t NewScissorRect
;
4517 /** gl_context::Color::Alpha* */
4518 uint64_t NewAlphaTest
;
4520 /** gl_context::Color::Blend/Dither */
4523 /** gl_context::Color::BlendColor */
4524 uint64_t NewBlendColor
;
4526 /** gl_context::Color::Color/Index */
4527 uint64_t NewColorMask
;
4529 /** gl_context::Depth */
4532 /** gl_context::Color::LogicOp/ColorLogicOp/IndexLogicOp */
4533 uint64_t NewLogicOp
;
4535 /** gl_context::Multisample::Enabled */
4536 uint64_t NewMultisampleEnable
;
4538 /** gl_context::Multisample::SampleAlphaTo* */
4539 uint64_t NewSampleAlphaToXEnable
;
4541 /** gl_context::Multisample::SampleCoverage/SampleMaskValue */
4542 uint64_t NewSampleMask
;
4544 /** gl_context::Multisample::(Min)SampleShading */
4545 uint64_t NewSampleShading
;
4547 /** gl_context::Stencil */
4548 uint64_t NewStencil
;
4550 /** gl_context::Transform::ClipOrigin/ClipDepthMode */
4551 uint64_t NewClipControl
;
4553 /** gl_context::Transform::EyeUserPlane */
4554 uint64_t NewClipPlane
;
4556 /** gl_context::Transform::ClipPlanesEnabled */
4557 uint64_t NewClipPlaneEnable
;
4559 /** gl_context::Transform::DepthClamp */
4560 uint64_t NewDepthClamp
;
4562 /** gl_context::Line */
4563 uint64_t NewLineState
;
4565 /** gl_context::Polygon */
4566 uint64_t NewPolygonState
;
4568 /** gl_context::PolygonStipple */
4569 uint64_t NewPolygonStipple
;
4571 /** gl_context::ViewportArray */
4572 uint64_t NewViewport
;
4574 /** Shader constants (uniforms, program parameters, state constants) */
4575 uint64_t NewShaderConstants
[MESA_SHADER_STAGES
];
4578 struct gl_buffer_binding
4580 struct gl_buffer_object
*BufferObject
;
4581 /** Start of uniform block data in the buffer */
4583 /** Size of data allowed to be referenced from the buffer (in bytes) */
4586 * glBindBufferBase() indicates that the Size should be ignored and only
4587 * limited by the current size of the BufferObject.
4589 GLboolean AutomaticSize
;
4593 * ARB_shader_image_load_store image unit.
4595 struct gl_image_unit
4598 * Texture object bound to this unit.
4600 struct gl_texture_object
*TexObj
;
4603 * Level of the texture object bound to this unit.
4608 * \c GL_TRUE if the whole level is bound as an array of layers, \c
4609 * GL_FALSE if only some specific layer of the texture is bound.
4615 * Layer of the texture object bound to this unit as specified by the
4621 * Layer of the texture object bound to this unit, or zero if the
4622 * whole level is bound.
4627 * Access allowed to this texture image. Either \c GL_READ_ONLY,
4628 * \c GL_WRITE_ONLY or \c GL_READ_WRITE.
4633 * GL internal format that determines the interpretation of the
4634 * image memory when shader image operations are performed through
4640 * Mesa format corresponding to \c Format.
4642 mesa_format _ActualFormat
;
4647 * Shader subroutines storage
4649 struct gl_subroutine_index_binding
4655 struct gl_texture_handle_object
4657 struct gl_texture_object
*texObj
;
4658 struct gl_sampler_object
*sampObj
;
4662 struct gl_image_handle_object
4664 struct gl_image_unit imgObj
;
4668 struct gl_memory_object
4670 GLuint Name
; /**< hash table ID/name */
4671 GLboolean Immutable
; /**< denotes mutability state of parameters */
4672 GLboolean Dedicated
; /**< import memory from a dedicated allocation */
4676 * Mesa rendering context.
4678 * This is the central context data structure for Mesa. Almost all
4679 * OpenGL state is contained in this structure.
4680 * Think of this as a base class from which device drivers will derive
4685 /** State possibly shared with other contexts in the address space */
4686 struct gl_shared_state
*Shared
;
4688 /** \name API function pointer tables */
4693 * The current dispatch table for non-displaylist-saving execution, either
4694 * BeginEnd or OutsideBeginEnd
4696 struct _glapi_table
*Exec
;
4698 * The normal dispatch table for non-displaylist-saving, non-begin/end
4700 struct _glapi_table
*OutsideBeginEnd
;
4701 /** The dispatch table used between glNewList() and glEndList() */
4702 struct _glapi_table
*Save
;
4704 * The dispatch table used between glBegin() and glEnd() (outside of a
4705 * display list). Only valid functions between those two are set, which is
4706 * mostly just the set in a GLvertexformat struct.
4708 struct _glapi_table
*BeginEnd
;
4710 * Dispatch table for when a graphics reset has happened.
4712 struct _glapi_table
*ContextLost
;
4714 * Dispatch table used to marshal API calls from the client program to a
4715 * separate server thread. NULL if API calls are not being marshalled to
4718 struct _glapi_table
*MarshalExec
;
4720 * Dispatch table currently in use for fielding API calls from the client
4721 * program. If API calls are being marshalled to another thread, this ==
4722 * MarshalExec. Otherwise it == CurrentServerDispatch.
4724 struct _glapi_table
*CurrentClientDispatch
;
4727 * Dispatch table currently in use for performing API calls. == Save or
4730 struct _glapi_table
*CurrentServerDispatch
;
4734 struct glthread_state
*GLThread
;
4736 struct gl_config Visual
;
4737 struct gl_framebuffer
*DrawBuffer
; /**< buffer for writing */
4738 struct gl_framebuffer
*ReadBuffer
; /**< buffer for reading */
4739 struct gl_framebuffer
*WinSysDrawBuffer
; /**< set with MakeCurrent */
4740 struct gl_framebuffer
*WinSysReadBuffer
; /**< set with MakeCurrent */
4743 * Device driver function pointer table
4745 struct dd_function_table Driver
;
4747 /** Core/Driver constants */
4748 struct gl_constants Const
;
4750 /** \name The various 4x4 matrix stacks */
4752 struct gl_matrix_stack ModelviewMatrixStack
;
4753 struct gl_matrix_stack ProjectionMatrixStack
;
4754 struct gl_matrix_stack TextureMatrixStack
[MAX_TEXTURE_UNITS
];
4755 struct gl_matrix_stack ProgramMatrixStack
[MAX_PROGRAM_MATRICES
];
4756 struct gl_matrix_stack
*CurrentStack
; /**< Points to one of the above stacks */
4759 /** Combined modelview and projection matrix */
4760 GLmatrix _ModelProjectMatrix
;
4762 /** \name Display lists */
4763 struct gl_dlist_state ListState
;
4765 GLboolean ExecuteFlag
; /**< Execute GL commands? */
4766 GLboolean CompileFlag
; /**< Compile GL commands into display list? */
4768 /** Extension information */
4769 struct gl_extensions Extensions
;
4771 /** GL version integer, for example 31 for GL 3.1, or 20 for GLES 2.0. */
4773 char *VersionString
;
4775 /** \name State attribute stack (for glPush/PopAttrib) */
4777 GLuint AttribStackDepth
;
4778 struct gl_attrib_node
*AttribStack
[MAX_ATTRIB_STACK_DEPTH
];
4781 /** \name Renderer attribute groups
4783 * We define a struct for each attribute group to make pushing and popping
4784 * attributes easy. Also it's a good organization.
4787 struct gl_accum_attrib Accum
; /**< Accum buffer attributes */
4788 struct gl_colorbuffer_attrib Color
; /**< Color buffer attributes */
4789 struct gl_current_attrib Current
; /**< Current attributes */
4790 struct gl_depthbuffer_attrib Depth
; /**< Depth buffer attributes */
4791 struct gl_eval_attrib Eval
; /**< Eval attributes */
4792 struct gl_fog_attrib Fog
; /**< Fog attributes */
4793 struct gl_hint_attrib Hint
; /**< Hint attributes */
4794 struct gl_light_attrib Light
; /**< Light attributes */
4795 struct gl_line_attrib Line
; /**< Line attributes */
4796 struct gl_list_attrib List
; /**< List attributes */
4797 struct gl_multisample_attrib Multisample
;
4798 struct gl_pixel_attrib Pixel
; /**< Pixel attributes */
4799 struct gl_point_attrib Point
; /**< Point attributes */
4800 struct gl_polygon_attrib Polygon
; /**< Polygon attributes */
4801 GLuint PolygonStipple
[32]; /**< Polygon stipple */
4802 struct gl_scissor_attrib Scissor
; /**< Scissor attributes */
4803 struct gl_stencil_attrib Stencil
; /**< Stencil buffer attributes */
4804 struct gl_texture_attrib Texture
; /**< Texture attributes */
4805 struct gl_transform_attrib Transform
; /**< Transformation attributes */
4806 struct gl_viewport_attrib ViewportArray
[MAX_VIEWPORTS
]; /**< Viewport attributes */
4809 /** \name Client attribute stack */
4811 GLuint ClientAttribStackDepth
;
4812 struct gl_attrib_node
*ClientAttribStack
[MAX_CLIENT_ATTRIB_STACK_DEPTH
];
4815 /** \name Client attribute groups */
4817 struct gl_array_attrib Array
; /**< Vertex arrays */
4818 struct gl_pixelstore_attrib Pack
; /**< Pixel packing */
4819 struct gl_pixelstore_attrib Unpack
; /**< Pixel unpacking */
4820 struct gl_pixelstore_attrib DefaultPacking
; /**< Default params */
4823 /** \name Other assorted state (not pushed/popped on attribute stack) */
4825 struct gl_pixelmaps PixelMaps
;
4827 struct gl_evaluators EvalMap
; /**< All evaluators */
4828 struct gl_feedback Feedback
; /**< Feedback */
4829 struct gl_selection Select
; /**< Selection */
4831 struct gl_program_state Program
; /**< general program state */
4832 struct gl_vertex_program_state VertexProgram
;
4833 struct gl_fragment_program_state FragmentProgram
;
4834 struct gl_geometry_program_state GeometryProgram
;
4835 struct gl_compute_program_state ComputeProgram
;
4836 struct gl_tess_ctrl_program_state TessCtrlProgram
;
4837 struct gl_tess_eval_program_state TessEvalProgram
;
4838 struct gl_ati_fragment_shader_state ATIFragmentShader
;
4840 struct gl_pipeline_shader_state Pipeline
; /**< GLSL pipeline shader object state */
4841 struct gl_pipeline_object Shader
; /**< GLSL shader object state */
4844 * Current active shader pipeline state
4846 * Almost all internal users want ::_Shader instead of ::Shader. The
4847 * exceptions are bits of legacy GLSL API that do not know about separate
4850 * If a program is active via \c glUseProgram, this will point to
4853 * If a program pipeline is active via \c glBindProgramPipeline, this will
4854 * point to \c ::Pipeline.Current.
4856 * If neither a program nor a program pipeline is active, this will point to
4857 * \c ::Pipeline.Default. This ensures that \c ::_Shader will never be
4860 struct gl_pipeline_object
*_Shader
;
4862 struct gl_query_state Query
; /**< occlusion, timer queries */
4864 struct gl_transform_feedback_state TransformFeedback
;
4866 struct gl_perf_monitor_state PerfMonitor
;
4867 struct gl_perf_query_state PerfQuery
;
4869 struct gl_buffer_object
*DrawIndirectBuffer
; /** < GL_ARB_draw_indirect */
4870 struct gl_buffer_object
*ParameterBuffer
; /** < GL_ARB_indirect_parameters */
4871 struct gl_buffer_object
*DispatchIndirectBuffer
; /** < GL_ARB_compute_shader */
4873 struct gl_buffer_object
*CopyReadBuffer
; /**< GL_ARB_copy_buffer */
4874 struct gl_buffer_object
*CopyWriteBuffer
; /**< GL_ARB_copy_buffer */
4876 struct gl_buffer_object
*QueryBuffer
; /**< GL_ARB_query_buffer_object */
4879 * Current GL_ARB_uniform_buffer_object binding referenced by
4880 * GL_UNIFORM_BUFFER target for glBufferData, glMapBuffer, etc.
4882 struct gl_buffer_object
*UniformBuffer
;
4885 * Current GL_ARB_shader_storage_buffer_object binding referenced by
4886 * GL_SHADER_STORAGE_BUFFER target for glBufferData, glMapBuffer, etc.
4888 struct gl_buffer_object
*ShaderStorageBuffer
;
4891 * Array of uniform buffers for GL_ARB_uniform_buffer_object and GL 3.1.
4892 * This is set up using glBindBufferRange() or glBindBufferBase(). They are
4893 * associated with uniform blocks by glUniformBlockBinding()'s state in the
4896 struct gl_buffer_binding
4897 UniformBufferBindings
[MAX_COMBINED_UNIFORM_BUFFERS
];
4900 * Array of shader storage buffers for ARB_shader_storage_buffer_object
4901 * and GL 4.3. This is set up using glBindBufferRange() or
4902 * glBindBufferBase(). They are associated with shader storage blocks by
4903 * glShaderStorageBlockBinding()'s state in the shader program.
4905 struct gl_buffer_binding
4906 ShaderStorageBufferBindings
[MAX_COMBINED_SHADER_STORAGE_BUFFERS
];
4909 * Object currently associated with the GL_ATOMIC_COUNTER_BUFFER
4912 struct gl_buffer_object
*AtomicBuffer
;
4915 * Object currently associated w/ the GL_EXTERNAL_VIRTUAL_MEMORY_BUFFER_AMD
4918 struct gl_buffer_object
*ExternalVirtualMemoryBuffer
;
4921 * Array of atomic counter buffer binding points.
4923 struct gl_buffer_binding
4924 AtomicBufferBindings
[MAX_COMBINED_ATOMIC_BUFFERS
];
4927 * Array of image units for ARB_shader_image_load_store.
4929 struct gl_image_unit ImageUnits
[MAX_IMAGE_UNITS
];
4931 struct gl_subroutine_index_binding SubroutineIndex
[MESA_SHADER_STAGES
];
4934 struct gl_meta_state
*Meta
; /**< for "meta" operations */
4936 /* GL_EXT_framebuffer_object */
4937 struct gl_renderbuffer
*CurrentRenderbuffer
;
4939 GLenum ErrorValue
; /**< Last error code */
4942 * Recognize and silence repeated error debug messages in buggy apps.
4944 const char *ErrorDebugFmtString
;
4945 GLuint ErrorDebugCount
;
4947 /* GL_ARB_debug_output/GL_KHR_debug */
4948 simple_mtx_t DebugMutex
;
4949 struct gl_debug_state
*Debug
;
4951 GLenum RenderMode
; /**< either GL_RENDER, GL_SELECT, GL_FEEDBACK */
4952 GLbitfield NewState
; /**< bitwise-or of _NEW_* flags */
4953 uint64_t NewDriverState
; /**< bitwise-or of flags from DriverFlags */
4955 struct gl_driver_flags DriverFlags
;
4957 GLboolean ViewportInitialized
; /**< has viewport size been initialized? */
4959 GLbitfield varying_vp_inputs
; /**< mask of VERT_BIT_* flags */
4961 /** \name Derived state */
4962 GLbitfield _ImageTransferState
;/**< bitwise-or of IMAGE_*_BIT flags */
4963 GLfloat _EyeZDir
[3];
4964 GLfloat _ModelViewInvScale
;
4965 GLboolean _NeedEyeCoords
;
4966 GLboolean _ForceEyeCoords
;
4968 GLuint TextureStateTimestamp
; /**< detect changes to shared state */
4970 struct gl_list_extensions
*ListExt
; /**< driver dlist extensions */
4972 /** \name For debugging/development only */
4974 GLboolean FirstTimeCurrent
;
4978 * False if this context was created without a config. This is needed
4979 * because the initial state of glDrawBuffers depends on this
4981 GLboolean HasConfig
;
4983 GLboolean TextureFormatSupported
[MESA_FORMAT_COUNT
];
4985 GLboolean RasterDiscard
; /**< GL_RASTERIZER_DISCARD */
4986 GLboolean IntelConservativeRasterization
; /**< GL_INTEL_CONSERVATIVE_RASTERIZATION */
4988 /** Does glVertexAttrib(0) alias glVertex()? */
4989 bool _AttribZeroAliasesVertex
;
4992 * When set, TileRasterOrderIncreasingX/Y control the order that a tiled
4993 * renderer's tiles should be excecuted, to meet the requirements of
4994 * GL_MESA_tile_raster_order.
4996 GLboolean TileRasterOrderFixed
;
4997 GLboolean TileRasterOrderIncreasingX
;
4998 GLboolean TileRasterOrderIncreasingY
;
5001 * \name Hooks for module contexts.
5003 * These will eventually live in the driver or elsewhere.
5006 void *swrast_context
;
5007 void *swsetup_context
;
5008 void *swtnl_context
;
5009 struct vbo_context
*vbo_context
;
5010 struct st_context
*st
;
5015 * \name NV_vdpau_interop
5018 const void *vdpDevice
;
5019 const void *vdpGetProcAddress
;
5020 struct set
*vdpSurfaces
;
5024 * Has this context observed a GPU reset in any context in the share group?
5026 * Once this field becomes true, it is never reset to false.
5028 GLboolean ShareGroupReset
;
5031 * \name OES_primitive_bounding_box
5033 * Stores the arguments to glPrimitiveBoundingBox
5035 GLfloat PrimitiveBoundingBox
[8];
5037 struct disk_cache
*Cache
;
5040 * \name GL_ARB_bindless_texture
5043 struct hash_table_u64
*ResidentTextureHandles
;
5044 struct hash_table_u64
*ResidentImageHandles
;
5049 * Information about memory usage. All sizes are in kilobytes.
5051 struct gl_memory_info
5053 unsigned total_device_memory
; /**< size of device memory, e.g. VRAM */
5054 unsigned avail_device_memory
; /**< free device memory at the moment */
5055 unsigned total_staging_memory
; /**< size of staging memory, e.g. GART */
5056 unsigned avail_staging_memory
; /**< free staging memory at the moment */
5057 unsigned device_memory_evicted
; /**< size of memory evicted (monotonic counter) */
5058 unsigned nr_device_memory_evictions
; /**< # of evictions (monotonic counter) */
5062 extern int MESA_VERBOSE
;
5063 extern int MESA_DEBUG_FLAGS
;
5064 # define MESA_FUNCTION __func__
5066 # define MESA_VERBOSE 0
5067 # define MESA_DEBUG_FLAGS 0
5068 # define MESA_FUNCTION "a function"
5072 /** The MESA_VERBOSE var is a bitmask of these flags */
5075 VERBOSE_VARRAY
= 0x0001,
5076 VERBOSE_TEXTURE
= 0x0002,
5077 VERBOSE_MATERIAL
= 0x0004,
5078 VERBOSE_PIPELINE
= 0x0008,
5079 VERBOSE_DRIVER
= 0x0010,
5080 VERBOSE_STATE
= 0x0020,
5081 VERBOSE_API
= 0x0040,
5082 VERBOSE_DISPLAY_LIST
= 0x0100,
5083 VERBOSE_LIGHTING
= 0x0200,
5084 VERBOSE_PRIMS
= 0x0400,
5085 VERBOSE_VERTS
= 0x0800,
5086 VERBOSE_DISASSEM
= 0x1000,
5087 VERBOSE_DRAW
= 0x2000,
5088 VERBOSE_SWAPBUFFERS
= 0x4000
5092 /** The MESA_DEBUG_FLAGS var is a bitmask of these flags */
5095 DEBUG_SILENT
= (1 << 0),
5096 DEBUG_ALWAYS_FLUSH
= (1 << 1),
5097 DEBUG_INCOMPLETE_TEXTURE
= (1 << 2),
5098 DEBUG_INCOMPLETE_FBO
= (1 << 3),
5099 DEBUG_CONTEXT
= (1 << 4)
5106 #endif /* MTYPES_H */