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/simple_mtx.h"
50 #include "util/u_dynarray.h"
58 /** Set a single bit */
59 #define BITFIELD_BIT(b) ((GLbitfield)1 << (b))
60 /** Set all bits up to excluding bit b */
61 #define BITFIELD_MASK(b) \
62 ((b) == 32 ? (~(GLbitfield)0) : BITFIELD_BIT(b) - 1)
63 /** Set count bits starting from bit b */
64 #define BITFIELD_RANGE(b, count) \
65 (BITFIELD_MASK((b) + (count)) & ~BITFIELD_MASK(b))
69 * \name 64-bit extension of GLbitfield.
72 typedef GLuint64 GLbitfield64
;
74 /** Set a single bit */
75 #define BITFIELD64_BIT(b) ((GLbitfield64)1 << (b))
76 /** Set all bits up to excluding bit b */
77 #define BITFIELD64_MASK(b) \
78 ((b) == 64 ? (~(GLbitfield64)0) : BITFIELD64_BIT(b) - 1)
79 /** Set count bits starting from bit b */
80 #define BITFIELD64_RANGE(b, count) \
81 (BITFIELD64_MASK((b) + (count)) & ~BITFIELD64_MASK(b))
85 * \name Some forward type declarations
88 struct _mesa_HashTable
;
89 struct gl_attrib_node
;
90 struct gl_list_extensions
;
92 struct gl_program_cache
;
93 struct gl_texture_object
;
94 struct gl_debug_state
;
97 struct gl_uniform_storage
;
98 struct prog_instruction
;
99 struct gl_program_parameter_list
;
100 struct gl_shader_spirv_data
;
106 /** Extra draw modes beyond GL_POINTS, GL_TRIANGLE_FAN, etc */
107 #define PRIM_MAX GL_PATCHES
108 #define PRIM_OUTSIDE_BEGIN_END (PRIM_MAX + 1)
109 #define PRIM_UNKNOWN (PRIM_MAX + 2)
112 * Determine if the given gl_varying_slot appears in the fragment shader.
114 static inline GLboolean
115 _mesa_varying_slot_in_fs(gl_varying_slot slot
)
118 case VARYING_SLOT_PSIZ
:
119 case VARYING_SLOT_BFC0
:
120 case VARYING_SLOT_BFC1
:
121 case VARYING_SLOT_EDGE
:
122 case VARYING_SLOT_CLIP_VERTEX
:
123 case VARYING_SLOT_LAYER
:
124 case VARYING_SLOT_TESS_LEVEL_OUTER
:
125 case VARYING_SLOT_TESS_LEVEL_INNER
:
126 case VARYING_SLOT_BOUNDING_BOX0
:
127 case VARYING_SLOT_BOUNDING_BOX1
:
135 * Indexes for all renderbuffers
139 /* the four standard color buffers */
147 /* optional aux buffer */
149 /* generic renderbuffers */
163 * Bit flags for all renderbuffers
165 #define BUFFER_BIT_FRONT_LEFT (1 << BUFFER_FRONT_LEFT)
166 #define BUFFER_BIT_BACK_LEFT (1 << BUFFER_BACK_LEFT)
167 #define BUFFER_BIT_FRONT_RIGHT (1 << BUFFER_FRONT_RIGHT)
168 #define BUFFER_BIT_BACK_RIGHT (1 << BUFFER_BACK_RIGHT)
169 #define BUFFER_BIT_AUX0 (1 << BUFFER_AUX0)
170 #define BUFFER_BIT_AUX1 (1 << BUFFER_AUX1)
171 #define BUFFER_BIT_AUX2 (1 << BUFFER_AUX2)
172 #define BUFFER_BIT_AUX3 (1 << BUFFER_AUX3)
173 #define BUFFER_BIT_DEPTH (1 << BUFFER_DEPTH)
174 #define BUFFER_BIT_STENCIL (1 << BUFFER_STENCIL)
175 #define BUFFER_BIT_ACCUM (1 << BUFFER_ACCUM)
176 #define BUFFER_BIT_COLOR0 (1 << BUFFER_COLOR0)
177 #define BUFFER_BIT_COLOR1 (1 << BUFFER_COLOR1)
178 #define BUFFER_BIT_COLOR2 (1 << BUFFER_COLOR2)
179 #define BUFFER_BIT_COLOR3 (1 << BUFFER_COLOR3)
180 #define BUFFER_BIT_COLOR4 (1 << BUFFER_COLOR4)
181 #define BUFFER_BIT_COLOR5 (1 << BUFFER_COLOR5)
182 #define BUFFER_BIT_COLOR6 (1 << BUFFER_COLOR6)
183 #define BUFFER_BIT_COLOR7 (1 << BUFFER_COLOR7)
186 * Mask of all the color buffer bits (but not accum).
188 #define BUFFER_BITS_COLOR (BUFFER_BIT_FRONT_LEFT | \
189 BUFFER_BIT_BACK_LEFT | \
190 BUFFER_BIT_FRONT_RIGHT | \
191 BUFFER_BIT_BACK_RIGHT | \
193 BUFFER_BIT_COLOR0 | \
194 BUFFER_BIT_COLOR1 | \
195 BUFFER_BIT_COLOR2 | \
196 BUFFER_BIT_COLOR3 | \
197 BUFFER_BIT_COLOR4 | \
198 BUFFER_BIT_COLOR5 | \
199 BUFFER_BIT_COLOR6 | \
202 /* Mask of bits for depth+stencil buffers */
203 #define BUFFER_BITS_DEPTH_STENCIL (BUFFER_BIT_DEPTH | BUFFER_BIT_STENCIL)
206 * Framebuffer configuration (aka visual / pixelformat)
207 * Note: some of these fields should be boolean, but it appears that
208 * code in drivers/dri/common/util.c requires int-sized fields.
214 GLuint doubleBufferMode
;
217 GLboolean haveAccumBuffer
;
218 GLboolean haveDepthBuffer
;
219 GLboolean haveStencilBuffer
;
221 GLint redBits
, greenBits
, blueBits
, alphaBits
; /* bits per comp */
222 GLuint redMask
, greenMask
, blueMask
, alphaMask
;
223 GLint rgbBits
; /* total bits for rgb */
224 GLint indexBits
; /* total bits for colorindex */
226 GLint accumRedBits
, accumGreenBits
, accumBlueBits
, accumAlphaBits
;
234 /* EXT_visual_rating / GLX 1.2 */
237 /* EXT_visual_info / GLX 1.2 */
238 GLint transparentPixel
;
239 /* colors are floats scaled to ints */
240 GLint transparentRed
, transparentGreen
, transparentBlue
, transparentAlpha
;
241 GLint transparentIndex
;
243 /* ARB_multisample / SGIS_multisample */
247 /* SGIX_pbuffer / GLX 1.3 */
248 GLint maxPbufferWidth
;
249 GLint maxPbufferHeight
;
250 GLint maxPbufferPixels
;
251 GLint optimalPbufferWidth
; /* Only for SGIX_pbuffer. */
252 GLint optimalPbufferHeight
; /* Only for SGIX_pbuffer. */
254 /* OML_swap_method */
257 /* EXT_texture_from_pixmap */
258 GLint bindToTextureRgb
;
259 GLint bindToTextureRgba
;
260 GLint bindToMipmapTexture
;
261 GLint bindToTextureTargets
;
264 /* EXT_framebuffer_sRGB */
270 * \name Bit flags used for updating material values.
273 #define MAT_ATTRIB_FRONT_AMBIENT 0
274 #define MAT_ATTRIB_BACK_AMBIENT 1
275 #define MAT_ATTRIB_FRONT_DIFFUSE 2
276 #define MAT_ATTRIB_BACK_DIFFUSE 3
277 #define MAT_ATTRIB_FRONT_SPECULAR 4
278 #define MAT_ATTRIB_BACK_SPECULAR 5
279 #define MAT_ATTRIB_FRONT_EMISSION 6
280 #define MAT_ATTRIB_BACK_EMISSION 7
281 #define MAT_ATTRIB_FRONT_SHININESS 8
282 #define MAT_ATTRIB_BACK_SHININESS 9
283 #define MAT_ATTRIB_FRONT_INDEXES 10
284 #define MAT_ATTRIB_BACK_INDEXES 11
285 #define MAT_ATTRIB_MAX 12
287 #define MAT_ATTRIB_AMBIENT(f) (MAT_ATTRIB_FRONT_AMBIENT+(f))
288 #define MAT_ATTRIB_DIFFUSE(f) (MAT_ATTRIB_FRONT_DIFFUSE+(f))
289 #define MAT_ATTRIB_SPECULAR(f) (MAT_ATTRIB_FRONT_SPECULAR+(f))
290 #define MAT_ATTRIB_EMISSION(f) (MAT_ATTRIB_FRONT_EMISSION+(f))
291 #define MAT_ATTRIB_SHININESS(f)(MAT_ATTRIB_FRONT_SHININESS+(f))
292 #define MAT_ATTRIB_INDEXES(f) (MAT_ATTRIB_FRONT_INDEXES+(f))
294 #define MAT_BIT_FRONT_AMBIENT (1<<MAT_ATTRIB_FRONT_AMBIENT)
295 #define MAT_BIT_BACK_AMBIENT (1<<MAT_ATTRIB_BACK_AMBIENT)
296 #define MAT_BIT_FRONT_DIFFUSE (1<<MAT_ATTRIB_FRONT_DIFFUSE)
297 #define MAT_BIT_BACK_DIFFUSE (1<<MAT_ATTRIB_BACK_DIFFUSE)
298 #define MAT_BIT_FRONT_SPECULAR (1<<MAT_ATTRIB_FRONT_SPECULAR)
299 #define MAT_BIT_BACK_SPECULAR (1<<MAT_ATTRIB_BACK_SPECULAR)
300 #define MAT_BIT_FRONT_EMISSION (1<<MAT_ATTRIB_FRONT_EMISSION)
301 #define MAT_BIT_BACK_EMISSION (1<<MAT_ATTRIB_BACK_EMISSION)
302 #define MAT_BIT_FRONT_SHININESS (1<<MAT_ATTRIB_FRONT_SHININESS)
303 #define MAT_BIT_BACK_SHININESS (1<<MAT_ATTRIB_BACK_SHININESS)
304 #define MAT_BIT_FRONT_INDEXES (1<<MAT_ATTRIB_FRONT_INDEXES)
305 #define MAT_BIT_BACK_INDEXES (1<<MAT_ATTRIB_BACK_INDEXES)
308 #define FRONT_MATERIAL_BITS (MAT_BIT_FRONT_EMISSION | \
309 MAT_BIT_FRONT_AMBIENT | \
310 MAT_BIT_FRONT_DIFFUSE | \
311 MAT_BIT_FRONT_SPECULAR | \
312 MAT_BIT_FRONT_SHININESS | \
313 MAT_BIT_FRONT_INDEXES)
315 #define BACK_MATERIAL_BITS (MAT_BIT_BACK_EMISSION | \
316 MAT_BIT_BACK_AMBIENT | \
317 MAT_BIT_BACK_DIFFUSE | \
318 MAT_BIT_BACK_SPECULAR | \
319 MAT_BIT_BACK_SHININESS | \
320 MAT_BIT_BACK_INDEXES)
322 #define ALL_MATERIAL_BITS (FRONT_MATERIAL_BITS | BACK_MATERIAL_BITS)
331 GLfloat Attrib
[MAT_ATTRIB_MAX
][4];
339 #define LIGHT_SPOT 0x1
340 #define LIGHT_LOCAL_VIEWER 0x2
341 #define LIGHT_POSITIONAL 0x4
342 #define LIGHT_NEED_VERTICES (LIGHT_POSITIONAL|LIGHT_LOCAL_VIEWER)
347 * Light source state.
351 GLfloat Ambient
[4]; /**< ambient color */
352 GLfloat Diffuse
[4]; /**< diffuse color */
353 GLfloat Specular
[4]; /**< specular color */
354 GLfloat EyePosition
[4]; /**< position in eye coordinates */
355 GLfloat SpotDirection
[4]; /**< spotlight direction in eye coordinates */
356 GLfloat SpotExponent
;
357 GLfloat SpotCutoff
; /**< in degrees */
358 GLfloat _CosCutoff
; /**< = MAX(0, cos(SpotCutoff)) */
359 GLfloat ConstantAttenuation
;
360 GLfloat LinearAttenuation
;
361 GLfloat QuadraticAttenuation
;
362 GLboolean Enabled
; /**< On/off flag */
365 * \name Derived fields
368 GLbitfield _Flags
; /**< Mask of LIGHT_x bits defined above */
370 GLfloat _Position
[4]; /**< position in eye/obj coordinates */
371 GLfloat _VP_inf_norm
[3]; /**< Norm direction to infinite light */
372 GLfloat _h_inf_norm
[3]; /**< Norm( _VP_inf_norm + <0,0,1> ) */
373 GLfloat _NormSpotDirection
[4]; /**< normalized spotlight direction */
374 GLfloat _VP_inf_spot_attenuation
;
376 GLfloat _MatAmbient
[2][3]; /**< material ambient * light ambient */
377 GLfloat _MatDiffuse
[2][3]; /**< material diffuse * light diffuse */
378 GLfloat _MatSpecular
[2][3]; /**< material spec * light specular */
388 GLfloat Ambient
[4]; /**< ambient color */
389 GLboolean LocalViewer
; /**< Local (or infinite) view point? */
390 GLboolean TwoSide
; /**< Two (or one) sided lighting? */
391 GLenum ColorControl
; /**< either GL_SINGLE_COLOR
392 or GL_SEPARATE_SPECULAR_COLOR */
397 * Accumulation buffer attribute group (GL_ACCUM_BUFFER_BIT)
399 struct gl_accum_attrib
401 GLfloat ClearColor
[4]; /**< Accumulation buffer clear color */
406 * Used for storing clear color, texture border color, etc.
407 * The float values are typically unclamped.
418 * Color buffer attribute group (GL_COLOR_BUFFER_BIT).
420 struct gl_colorbuffer_attrib
422 GLuint ClearIndex
; /**< Index for glClear */
423 union gl_color_union ClearColor
; /**< Color for glClear, unclamped */
424 GLuint IndexMask
; /**< Color index write mask */
425 GLubyte ColorMask
[MAX_DRAW_BUFFERS
][4]; /**< Each flag is 0xff or 0x0 */
427 GLenum DrawBuffer
[MAX_DRAW_BUFFERS
]; /**< Which buffer to draw into */
430 * \name alpha testing
433 GLboolean AlphaEnabled
; /**< Alpha test enabled flag */
434 GLenum AlphaFunc
; /**< Alpha test function */
435 GLfloat AlphaRefUnclamped
;
436 GLclampf AlphaRef
; /**< Alpha reference value */
443 GLbitfield BlendEnabled
; /**< Per-buffer blend enable flags */
445 /* NOTE: this does _not_ depend on fragment clamping or any other clamping
446 * control, only on the fixed-pointness of the render target.
447 * The query does however depend on fragment color clamping.
449 GLfloat BlendColorUnclamped
[4]; /**< Blending color */
450 GLfloat BlendColor
[4]; /**< Blending color */
454 GLenum SrcRGB
; /**< RGB blend source term */
455 GLenum DstRGB
; /**< RGB blend dest term */
456 GLenum SrcA
; /**< Alpha blend source term */
457 GLenum DstA
; /**< Alpha blend dest term */
458 GLenum EquationRGB
; /**< GL_ADD, GL_SUBTRACT, etc. */
459 GLenum EquationA
; /**< GL_ADD, GL_SUBTRACT, etc. */
461 * Set if any blend factor uses SRC1. Computed at the time blend factors
464 GLboolean _UsesDualSrc
;
465 } Blend
[MAX_DRAW_BUFFERS
];
466 /** Are the blend func terms currently different for each buffer/target? */
467 GLboolean _BlendFuncPerBuffer
;
468 /** Are the blend equations currently different for each buffer/target? */
469 GLboolean _BlendEquationPerBuffer
;
472 * Which advanced blending mode is in use (or BLEND_NONE).
474 * KHR_blend_equation_advanced only allows advanced blending with a single
475 * draw buffer, and NVX_blend_equation_advanced_multi_draw_buffer still
476 * requires all draw buffers to match, so we only need a single value.
478 enum gl_advanced_blend_mode _AdvancedBlendMode
;
480 /** Coherency requested via glEnable(GL_BLEND_ADVANCED_COHERENT_KHR)? */
488 GLboolean IndexLogicOpEnabled
; /**< Color index logic op enabled flag */
489 GLboolean ColorLogicOpEnabled
; /**< RGBA logic op enabled flag */
490 GLenum LogicOp
; /**< Logic operator */
494 GLboolean DitherFlag
; /**< Dither enable flag */
496 GLboolean _ClampFragmentColor
; /** < with GL_FIXED_ONLY_ARB resolved */
497 GLenum ClampFragmentColor
; /**< GL_TRUE, GL_FALSE or GL_FIXED_ONLY_ARB */
498 GLenum ClampReadColor
; /**< GL_TRUE, GL_FALSE or GL_FIXED_ONLY_ARB */
500 GLboolean sRGBEnabled
; /**< Framebuffer sRGB blending/updating requested */
505 * Current attribute group (GL_CURRENT_BIT).
507 struct gl_current_attrib
510 * \name Current vertex attributes (color, texcoords, etc).
511 * \note Values are valid only after FLUSH_VERTICES has been called.
512 * \note Index and Edgeflag current values are stored as floats in the
513 * SIX and SEVEN attribute slots.
514 * \note We need double storage for 64-bit vertex attributes
516 GLfloat Attrib
[VERT_ATTRIB_MAX
][4*2];
519 * \name Current raster position attributes (always up to date after a
522 GLfloat RasterPos
[4];
523 GLfloat RasterDistance
;
524 GLfloat RasterColor
[4];
525 GLfloat RasterSecondaryColor
[4];
526 GLfloat RasterTexCoords
[MAX_TEXTURE_COORD_UNITS
][4];
527 GLboolean RasterPosValid
;
532 * Depth buffer attribute group (GL_DEPTH_BUFFER_BIT).
534 struct gl_depthbuffer_attrib
536 GLenum Func
; /**< Function for depth buffer compare */
537 GLclampd Clear
; /**< Value to clear depth buffer to */
538 GLboolean Test
; /**< Depth buffering enabled flag */
539 GLboolean Mask
; /**< Depth buffer writable? */
540 GLboolean BoundsTest
; /**< GL_EXT_depth_bounds_test */
541 GLfloat BoundsMin
, BoundsMax
;/**< GL_EXT_depth_bounds_test */
546 * Evaluator attribute group (GL_EVAL_BIT).
548 struct gl_eval_attrib
554 GLboolean Map1Color4
;
556 GLboolean Map1Normal
;
557 GLboolean Map1TextureCoord1
;
558 GLboolean Map1TextureCoord2
;
559 GLboolean Map1TextureCoord3
;
560 GLboolean Map1TextureCoord4
;
561 GLboolean Map1Vertex3
;
562 GLboolean Map1Vertex4
;
563 GLboolean Map2Color4
;
565 GLboolean Map2Normal
;
566 GLboolean Map2TextureCoord1
;
567 GLboolean Map2TextureCoord2
;
568 GLboolean Map2TextureCoord3
;
569 GLboolean Map2TextureCoord4
;
570 GLboolean Map2Vertex3
;
571 GLboolean Map2Vertex4
;
572 GLboolean AutoNormal
;
576 * \name Map Grid endpoints and divisions and calculated du values
580 GLfloat MapGrid1u1
, MapGrid1u2
, MapGrid1du
;
581 GLint MapGrid2un
, MapGrid2vn
;
582 GLfloat MapGrid2u1
, MapGrid2u2
, MapGrid2du
;
583 GLfloat MapGrid2v1
, MapGrid2v2
, MapGrid2dv
;
589 * Compressed fog mode.
601 * Fog attribute group (GL_FOG_BIT).
605 GLboolean Enabled
; /**< Fog enabled flag */
606 GLboolean ColorSumEnabled
;
607 uint8_t _PackedMode
; /**< Fog mode as 2 bits */
608 uint8_t _PackedEnabledMode
; /**< Masked CompressedMode */
609 GLfloat ColorUnclamped
[4]; /**< Fog color */
610 GLfloat Color
[4]; /**< Fog color */
611 GLfloat Density
; /**< Density >= 0.0 */
612 GLfloat Start
; /**< Start distance in eye coords */
613 GLfloat End
; /**< End distance in eye coords */
614 GLfloat Index
; /**< Fog index */
615 GLenum Mode
; /**< Fog mode */
616 GLenum FogCoordinateSource
; /**< GL_EXT_fog_coord */
617 GLfloat _Scale
; /**< (End == Start) ? 1.0 : 1.0 / (End - Start) */
618 GLenum FogDistanceMode
; /**< GL_NV_fog_distance */
623 * Hint attribute group (GL_HINT_BIT).
625 * Values are always one of GL_FASTEST, GL_NICEST, or GL_DONT_CARE.
627 struct gl_hint_attrib
629 GLenum PerspectiveCorrection
;
632 GLenum PolygonSmooth
;
634 GLenum TextureCompression
; /**< GL_ARB_texture_compression */
635 GLenum GenerateMipmap
; /**< GL_SGIS_generate_mipmap */
636 GLenum FragmentShaderDerivative
; /**< GL_ARB_fragment_shader */
641 * Lighting attribute group (GL_LIGHT_BIT).
643 struct gl_light_attrib
645 struct gl_light Light
[MAX_LIGHTS
]; /**< Array of light sources */
646 struct gl_lightmodel Model
; /**< Lighting model */
649 * Front and back material values.
650 * Note: must call FLUSH_VERTICES() before using.
652 struct gl_material Material
;
654 GLboolean Enabled
; /**< Lighting enabled flag */
655 GLboolean ColorMaterialEnabled
;
657 GLenum ShadeModel
; /**< GL_FLAT or GL_SMOOTH */
658 GLenum ProvokingVertex
; /**< GL_EXT_provoking_vertex */
659 GLenum ColorMaterialFace
; /**< GL_FRONT, BACK or FRONT_AND_BACK */
660 GLenum ColorMaterialMode
; /**< GL_AMBIENT, GL_DIFFUSE, etc */
661 GLbitfield _ColorMaterialBitmask
; /**< bitmask formed from Face and Mode */
664 GLboolean _ClampVertexColor
;
665 GLenum ClampVertexColor
; /**< GL_TRUE, GL_FALSE, GL_FIXED_ONLY */
668 * Derived state for optimizations:
671 GLbitfield _EnabledLights
; /**< bitmask containing enabled lights */
673 GLboolean _NeedEyeCoords
;
674 GLboolean _NeedVertices
; /**< Use fast shader? */
676 GLfloat _BaseColor
[2][3];
682 * Line attribute group (GL_LINE_BIT).
684 struct gl_line_attrib
686 GLboolean SmoothFlag
; /**< GL_LINE_SMOOTH enabled? */
687 GLboolean StippleFlag
; /**< GL_LINE_STIPPLE enabled? */
688 GLushort StipplePattern
; /**< Stipple pattern */
689 GLint StippleFactor
; /**< Stipple repeat factor */
690 GLfloat Width
; /**< Line width */
695 * Display list attribute group (GL_LIST_BIT).
697 struct gl_list_attrib
704 * Multisample attribute group (GL_MULTISAMPLE_BIT).
706 struct gl_multisample_attrib
709 GLboolean SampleAlphaToCoverage
;
710 GLboolean SampleAlphaToOne
;
711 GLboolean SampleCoverage
;
712 GLboolean SampleCoverageInvert
;
713 GLboolean SampleShading
;
715 /* ARB_texture_multisample / GL3.2 additions */
716 GLboolean SampleMask
;
718 GLfloat SampleCoverageValue
; /**< In range [0, 1] */
719 GLfloat MinSampleShadingValue
; /**< In range [0, 1] */
721 /** The GL spec defines this as an array but >32x MSAA is madness */
722 GLbitfield SampleMaskValue
;
727 * A pixelmap (see glPixelMap)
732 GLfloat Map
[MAX_PIXEL_MAP_TABLE
];
737 * Collection of all pixelmaps
741 struct gl_pixelmap RtoR
; /**< i.e. GL_PIXEL_MAP_R_TO_R */
742 struct gl_pixelmap GtoG
;
743 struct gl_pixelmap BtoB
;
744 struct gl_pixelmap AtoA
;
745 struct gl_pixelmap ItoR
;
746 struct gl_pixelmap ItoG
;
747 struct gl_pixelmap ItoB
;
748 struct gl_pixelmap ItoA
;
749 struct gl_pixelmap ItoI
;
750 struct gl_pixelmap StoS
;
755 * Pixel attribute group (GL_PIXEL_MODE_BIT).
757 struct gl_pixel_attrib
759 GLenum ReadBuffer
; /**< source buffer for glRead/CopyPixels() */
761 /*--- Begin Pixel Transfer State ---*/
762 /* Fields are in the order in which they're applied... */
764 /** Scale & Bias (index shift, offset) */
766 GLfloat RedBias
, RedScale
;
767 GLfloat GreenBias
, GreenScale
;
768 GLfloat BlueBias
, BlueScale
;
769 GLfloat AlphaBias
, AlphaScale
;
770 GLfloat DepthBias
, DepthScale
;
771 GLint IndexShift
, IndexOffset
;
775 /* Note: actual pixel maps are not part of this attrib group */
776 GLboolean MapColorFlag
;
777 GLboolean MapStencilFlag
;
779 /*--- End Pixel Transfer State ---*/
782 GLfloat ZoomX
, ZoomY
;
787 * Point attribute group (GL_POINT_BIT).
789 struct gl_point_attrib
791 GLfloat Size
; /**< User-specified point size */
792 GLfloat Params
[3]; /**< GL_EXT_point_parameters */
793 GLfloat MinSize
, MaxSize
; /**< GL_EXT_point_parameters */
794 GLfloat Threshold
; /**< GL_EXT_point_parameters */
795 GLboolean SmoothFlag
; /**< True if GL_POINT_SMOOTH is enabled */
796 GLboolean _Attenuated
; /**< True if Params != [1, 0, 0] */
797 GLboolean PointSprite
; /**< GL_NV/ARB_point_sprite */
798 GLbitfield CoordReplace
; /**< GL_ARB_point_sprite*/
799 GLenum SpriteRMode
; /**< GL_NV_point_sprite (only!) */
800 GLenum SpriteOrigin
; /**< GL_ARB_point_sprite */
805 * Polygon attribute group (GL_POLYGON_BIT).
807 struct gl_polygon_attrib
809 GLenum FrontFace
; /**< Either GL_CW or GL_CCW */
810 GLenum FrontMode
; /**< Either GL_POINT, GL_LINE or GL_FILL */
811 GLenum BackMode
; /**< Either GL_POINT, GL_LINE or GL_FILL */
812 GLboolean CullFlag
; /**< Culling on/off flag */
813 GLboolean SmoothFlag
; /**< True if GL_POLYGON_SMOOTH is enabled */
814 GLboolean StippleFlag
; /**< True if GL_POLYGON_STIPPLE is enabled */
815 GLenum CullFaceMode
; /**< Culling mode GL_FRONT or GL_BACK */
816 GLfloat OffsetFactor
; /**< Polygon offset factor, from user */
817 GLfloat OffsetUnits
; /**< Polygon offset units, from user */
818 GLfloat OffsetClamp
; /**< Polygon offset clamp, from user */
819 GLboolean OffsetPoint
; /**< Offset in GL_POINT mode */
820 GLboolean OffsetLine
; /**< Offset in GL_LINE mode */
821 GLboolean OffsetFill
; /**< Offset in GL_FILL mode */
826 * Scissor attributes (GL_SCISSOR_BIT).
828 struct gl_scissor_rect
830 GLint X
, Y
; /**< Lower left corner of box */
831 GLsizei Width
, Height
; /**< Size of box */
835 struct gl_scissor_attrib
837 GLbitfield EnableFlags
; /**< Scissor test enabled? */
838 struct gl_scissor_rect ScissorArray
[MAX_VIEWPORTS
];
839 GLint NumWindowRects
; /**< Count of enabled window rectangles */
840 GLenum WindowRectMode
; /**< Whether to include or exclude the rects */
841 struct gl_scissor_rect WindowRects
[MAX_WINDOW_RECTANGLES
];
846 * Stencil attribute group (GL_STENCIL_BUFFER_BIT).
848 * Three sets of stencil data are tracked so that OpenGL 2.0,
849 * GL_EXT_stencil_two_side, and GL_ATI_separate_stencil can all be supported
850 * simultaneously. In each of the stencil state arrays, element 0 corresponds
851 * to GL_FRONT. Element 1 corresponds to the OpenGL 2.0 /
852 * GL_ATI_separate_stencil GL_BACK state. Element 2 corresponds to the
853 * GL_EXT_stencil_two_side GL_BACK state.
855 * The derived value \c _BackFace is either 1 or 2 depending on whether or
856 * not GL_STENCIL_TEST_TWO_SIDE_EXT is enabled.
858 * The derived value \c _TestTwoSide is set when the front-face and back-face
859 * stencil state are different.
861 struct gl_stencil_attrib
863 GLboolean Enabled
; /**< Enabled flag */
864 GLboolean TestTwoSide
; /**< GL_EXT_stencil_two_side */
865 GLubyte ActiveFace
; /**< GL_EXT_stencil_two_side (0 or 2) */
866 GLubyte _BackFace
; /**< Current back stencil state (1 or 2) */
867 GLenum Function
[3]; /**< Stencil function */
868 GLenum FailFunc
[3]; /**< Fail function */
869 GLenum ZPassFunc
[3]; /**< Depth buffer pass function */
870 GLenum ZFailFunc
[3]; /**< Depth buffer fail function */
871 GLint Ref
[3]; /**< Reference value */
872 GLuint ValueMask
[3]; /**< Value mask */
873 GLuint WriteMask
[3]; /**< Write mask */
874 GLuint Clear
; /**< Clear value */
879 * An index for each type of texture object. These correspond to the GL
880 * texture target enums, such as GL_TEXTURE_2D, GL_TEXTURE_CUBE_MAP, etc.
881 * Note: the order is from highest priority to lowest priority.
885 TEXTURE_2D_MULTISAMPLE_INDEX
,
886 TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX
,
887 TEXTURE_CUBE_ARRAY_INDEX
,
888 TEXTURE_BUFFER_INDEX
,
889 TEXTURE_2D_ARRAY_INDEX
,
890 TEXTURE_1D_ARRAY_INDEX
,
891 TEXTURE_EXTERNAL_INDEX
,
902 * Bit flags for each type of texture object
905 #define TEXTURE_2D_MULTISAMPLE_BIT (1 << TEXTURE_2D_MULTISAMPLE_INDEX)
906 #define TEXTURE_2D_MULTISAMPLE_ARRAY_BIT (1 << TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX)
907 #define TEXTURE_CUBE_ARRAY_BIT (1 << TEXTURE_CUBE_ARRAY_INDEX)
908 #define TEXTURE_BUFFER_BIT (1 << TEXTURE_BUFFER_INDEX)
909 #define TEXTURE_2D_ARRAY_BIT (1 << TEXTURE_2D_ARRAY_INDEX)
910 #define TEXTURE_1D_ARRAY_BIT (1 << TEXTURE_1D_ARRAY_INDEX)
911 #define TEXTURE_EXTERNAL_BIT (1 << TEXTURE_EXTERNAL_INDEX)
912 #define TEXTURE_CUBE_BIT (1 << TEXTURE_CUBE_INDEX)
913 #define TEXTURE_3D_BIT (1 << TEXTURE_3D_INDEX)
914 #define TEXTURE_RECT_BIT (1 << TEXTURE_RECT_INDEX)
915 #define TEXTURE_2D_BIT (1 << TEXTURE_2D_INDEX)
916 #define TEXTURE_1D_BIT (1 << TEXTURE_1D_INDEX)
921 * Texture image state. Drivers will typically create a subclass of this
922 * with extra fields for memory buffers, etc.
924 struct gl_texture_image
926 GLint InternalFormat
; /**< Internal format as given by the user */
927 GLenum _BaseFormat
; /**< Either GL_RGB, GL_RGBA, GL_ALPHA,
928 * GL_LUMINANCE, GL_LUMINANCE_ALPHA,
929 * GL_INTENSITY, GL_DEPTH_COMPONENT or
930 * GL_DEPTH_STENCIL_EXT only. Used for
931 * choosing TexEnv arithmetic.
933 mesa_format TexFormat
; /**< The actual texture memory format */
935 GLuint Border
; /**< 0 or 1 */
936 GLuint Width
; /**< = 2^WidthLog2 + 2*Border */
937 GLuint Height
; /**< = 2^HeightLog2 + 2*Border */
938 GLuint Depth
; /**< = 2^DepthLog2 + 2*Border */
939 GLuint Width2
; /**< = Width - 2*Border */
940 GLuint Height2
; /**< = Height - 2*Border */
941 GLuint Depth2
; /**< = Depth - 2*Border */
942 GLuint WidthLog2
; /**< = log2(Width2) */
943 GLuint HeightLog2
; /**< = log2(Height2) */
944 GLuint DepthLog2
; /**< = log2(Depth2) */
945 GLuint MaxNumLevels
; /**< = maximum possible number of mipmap
946 levels, computed from the dimensions */
948 struct gl_texture_object
*TexObject
; /**< Pointer back to parent object */
949 GLuint Level
; /**< Which mipmap level am I? */
950 /** Cube map face: index into gl_texture_object::Image[] array */
953 /** GL_ARB_texture_multisample */
954 GLuint NumSamples
; /**< Sample count, or 0 for non-multisample */
955 GLboolean FixedSampleLocations
; /**< Same sample locations for all pixels? */
960 * Indexes for cube map faces.
975 * Sampler object state. These objects are new with GL_ARB_sampler_objects
976 * and OpenGL 3.3. Legacy texture objects also contain a sampler object.
978 struct gl_sampler_object
983 GLchar
*Label
; /**< GL_KHR_debug */
985 GLenum WrapS
; /**< S-axis texture image wrap mode */
986 GLenum WrapT
; /**< T-axis texture image wrap mode */
987 GLenum WrapR
; /**< R-axis texture image wrap mode */
988 GLenum MinFilter
; /**< minification filter */
989 GLenum MagFilter
; /**< magnification filter */
990 union gl_color_union BorderColor
; /**< Interpreted according to texture format */
991 GLfloat MinLod
; /**< min lambda, OpenGL 1.2 */
992 GLfloat MaxLod
; /**< max lambda, OpenGL 1.2 */
993 GLfloat LodBias
; /**< OpenGL 1.4 */
994 GLfloat MaxAnisotropy
; /**< GL_EXT_texture_filter_anisotropic */
995 GLenum CompareMode
; /**< GL_ARB_shadow */
996 GLenum CompareFunc
; /**< GL_ARB_shadow */
997 GLenum sRGBDecode
; /**< GL_DECODE_EXT or GL_SKIP_DECODE_EXT */
998 GLboolean CubeMapSeamless
; /**< GL_AMD_seamless_cubemap_per_texture */
1000 /** GL_ARB_bindless_texture */
1001 bool HandleAllocated
;
1002 struct util_dynarray Handles
;
1007 * Texture object state. Contains the array of mipmap images, border color,
1008 * wrap modes, filter modes, and shadow/texcompare state.
1010 struct gl_texture_object
1012 simple_mtx_t Mutex
; /**< for thread safety */
1013 GLint RefCount
; /**< reference count */
1014 GLuint Name
; /**< the user-visible texture object ID */
1015 GLchar
*Label
; /**< GL_KHR_debug */
1016 GLenum Target
; /**< GL_TEXTURE_1D, GL_TEXTURE_2D, etc. */
1017 gl_texture_index TargetIndex
; /**< The gl_texture_unit::CurrentTex index.
1018 Only valid when Target is valid. */
1020 struct gl_sampler_object Sampler
;
1022 GLenum DepthMode
; /**< GL_ARB_depth_texture */
1024 GLfloat Priority
; /**< in [0,1] */
1025 GLint BaseLevel
; /**< min mipmap level, OpenGL 1.2 */
1026 GLint MaxLevel
; /**< max mipmap level, OpenGL 1.2 */
1027 GLint ImmutableLevels
; /**< ES 3.0 / ARB_texture_view */
1028 GLint _MaxLevel
; /**< actual max mipmap level (q in the spec) */
1029 GLfloat _MaxLambda
; /**< = _MaxLevel - BaseLevel (q - p in spec) */
1030 GLint CropRect
[4]; /**< GL_OES_draw_texture */
1031 GLenum Swizzle
[4]; /**< GL_EXT_texture_swizzle */
1032 GLuint _Swizzle
; /**< same as Swizzle, but SWIZZLE_* format */
1033 GLboolean GenerateMipmap
; /**< GL_SGIS_generate_mipmap */
1034 GLboolean _BaseComplete
; /**< Is the base texture level valid? */
1035 GLboolean _MipmapComplete
; /**< Is the whole mipmap valid? */
1036 GLboolean _IsIntegerFormat
; /**< Does the texture store integer values? */
1037 GLboolean _RenderToTexture
; /**< Any rendering to this texture? */
1038 GLboolean Purgeable
; /**< Is the buffer purgeable under memory
1040 GLboolean Immutable
; /**< GL_ARB_texture_storage */
1041 GLboolean _IsFloat
; /**< GL_OES_float_texture */
1042 GLboolean _IsHalfFloat
; /**< GL_OES_half_float_texture */
1043 bool StencilSampling
; /**< Should we sample stencil instead of depth? */
1044 bool HandleAllocated
; /**< GL_ARB_bindless_texture */
1046 GLuint MinLevel
; /**< GL_ARB_texture_view */
1047 GLuint MinLayer
; /**< GL_ARB_texture_view */
1048 GLuint NumLevels
; /**< GL_ARB_texture_view */
1049 GLuint NumLayers
; /**< GL_ARB_texture_view */
1051 /** GL_EXT_memory_object */
1052 GLenum TextureTiling
;
1054 /** Actual texture images, indexed by [cube face] and [mipmap level] */
1055 struct gl_texture_image
*Image
[MAX_FACES
][MAX_TEXTURE_LEVELS
];
1057 /** GL_ARB_texture_buffer_object */
1058 struct gl_buffer_object
*BufferObject
;
1059 GLenum BufferObjectFormat
;
1060 /** Equivalent Mesa format for BufferObjectFormat. */
1061 mesa_format _BufferObjectFormat
;
1062 /** GL_ARB_texture_buffer_range */
1063 GLintptr BufferOffset
;
1064 GLsizeiptr BufferSize
; /**< if this is -1, use BufferObject->Size instead */
1066 /** GL_OES_EGL_image_external */
1067 GLint RequiredTextureImageUnits
;
1069 /** GL_ARB_shader_image_load_store */
1070 GLenum ImageFormatCompatibilityType
;
1072 /** GL_ARB_bindless_texture */
1073 struct util_dynarray SamplerHandles
;
1074 struct util_dynarray ImageHandles
;
1078 /** Up to four combiner sources are possible with GL_NV_texture_env_combine4 */
1079 #define MAX_COMBINER_TERMS 4
1083 * Texture combine environment state.
1085 struct gl_tex_env_combine_state
1087 GLenum ModeRGB
; /**< GL_REPLACE, GL_DECAL, GL_ADD, etc. */
1088 GLenum ModeA
; /**< GL_REPLACE, GL_DECAL, GL_ADD, etc. */
1089 /** Source terms: GL_PRIMARY_COLOR, GL_TEXTURE, etc */
1090 GLenum SourceRGB
[MAX_COMBINER_TERMS
];
1091 GLenum SourceA
[MAX_COMBINER_TERMS
];
1092 /** Source operands: GL_SRC_COLOR, GL_ONE_MINUS_SRC_COLOR, etc */
1093 GLenum OperandRGB
[MAX_COMBINER_TERMS
];
1094 GLenum OperandA
[MAX_COMBINER_TERMS
];
1095 GLuint ScaleShiftRGB
; /**< 0, 1 or 2 */
1096 GLuint ScaleShiftA
; /**< 0, 1 or 2 */
1097 GLuint _NumArgsRGB
; /**< Number of inputs used for the RGB combiner */
1098 GLuint _NumArgsA
; /**< Number of inputs used for the A combiner */
1102 /** Compressed TexEnv effective Combine mode */
1103 enum gl_tex_env_mode
1105 TEXENV_MODE_REPLACE
, /* r = a0 */
1106 TEXENV_MODE_MODULATE
, /* r = a0 * a1 */
1107 TEXENV_MODE_ADD
, /* r = a0 + a1 */
1108 TEXENV_MODE_ADD_SIGNED
, /* r = a0 + a1 - 0.5 */
1109 TEXENV_MODE_INTERPOLATE
, /* r = a0 * a2 + a1 * (1 - a2) */
1110 TEXENV_MODE_SUBTRACT
, /* r = a0 - a1 */
1111 TEXENV_MODE_DOT3_RGB
, /* r = a0 . a1 */
1112 TEXENV_MODE_DOT3_RGB_EXT
, /* r = a0 . a1 */
1113 TEXENV_MODE_DOT3_RGBA
, /* r = a0 . a1 */
1114 TEXENV_MODE_DOT3_RGBA_EXT
, /* r = a0 . a1 */
1115 TEXENV_MODE_MODULATE_ADD_ATI
, /* r = a0 * a2 + a1 */
1116 TEXENV_MODE_MODULATE_SIGNED_ADD_ATI
, /* r = a0 * a2 + a1 - 0.5 */
1117 TEXENV_MODE_MODULATE_SUBTRACT_ATI
, /* r = a0 * a2 - a1 */
1118 TEXENV_MODE_ADD_PRODUCTS_NV
, /* r = a0 * a1 + a2 * a3 */
1119 TEXENV_MODE_ADD_PRODUCTS_SIGNED_NV
, /* r = a0 * a1 + a2 * a3 - 0.5 */
1123 /** Compressed TexEnv Combine source */
1124 enum gl_tex_env_source
1126 TEXENV_SRC_TEXTURE0
,
1127 TEXENV_SRC_TEXTURE1
,
1128 TEXENV_SRC_TEXTURE2
,
1129 TEXENV_SRC_TEXTURE3
,
1130 TEXENV_SRC_TEXTURE4
,
1131 TEXENV_SRC_TEXTURE5
,
1132 TEXENV_SRC_TEXTURE6
,
1133 TEXENV_SRC_TEXTURE7
,
1135 TEXENV_SRC_PREVIOUS
,
1136 TEXENV_SRC_PRIMARY_COLOR
,
1137 TEXENV_SRC_CONSTANT
,
1143 /** Compressed TexEnv Combine operand */
1144 enum gl_tex_env_operand
1147 TEXENV_OPR_ONE_MINUS_COLOR
,
1149 TEXENV_OPR_ONE_MINUS_ALPHA
,
1153 /** Compressed TexEnv Combine argument */
1154 struct gl_tex_env_argument
1157 __extension__
uint8_t Source
:4; /**< TEXENV_SRC_x */
1158 __extension__
uint8_t Operand
:2; /**< TEXENV_OPR_x */
1160 uint8_t Source
; /**< SRC_x */
1161 uint8_t Operand
; /**< OPR_x */
1167 * Compressed TexEnv Combine state.
1169 struct gl_tex_env_combine_packed
1171 uint32_t ModeRGB
:4; /**< Effective mode for RGB as 4 bits */
1172 uint32_t ModeA
:4; /**< Effective mode for RGB as 4 bits */
1173 uint32_t ScaleShiftRGB
:2; /**< 0, 1 or 2 */
1174 uint32_t ScaleShiftA
:2; /**< 0, 1 or 2 */
1175 uint32_t NumArgsRGB
:3; /**< Number of inputs used for the RGB combiner */
1176 uint32_t NumArgsA
:3; /**< Number of inputs used for the A combiner */
1177 /** Source arguments in a packed manner */
1178 struct gl_tex_env_argument ArgsRGB
[MAX_COMBINER_TERMS
];
1179 struct gl_tex_env_argument ArgsA
[MAX_COMBINER_TERMS
];
1184 * TexGenEnabled flags.
1191 #define STR_BITS (S_BIT | T_BIT | R_BIT)
1196 * Bit flag versions of the corresponding GL_ constants.
1199 #define TEXGEN_SPHERE_MAP 0x1
1200 #define TEXGEN_OBJ_LINEAR 0x2
1201 #define TEXGEN_EYE_LINEAR 0x4
1202 #define TEXGEN_REFLECTION_MAP_NV 0x8
1203 #define TEXGEN_NORMAL_MAP_NV 0x10
1205 #define TEXGEN_NEED_NORMALS (TEXGEN_SPHERE_MAP | \
1206 TEXGEN_REFLECTION_MAP_NV | \
1207 TEXGEN_NORMAL_MAP_NV)
1208 #define TEXGEN_NEED_EYE_COORD (TEXGEN_SPHERE_MAP | \
1209 TEXGEN_REFLECTION_MAP_NV | \
1210 TEXGEN_NORMAL_MAP_NV | \
1216 /** Tex-gen enabled for texture unit? */
1217 #define ENABLE_TEXGEN(unit) (1 << (unit))
1219 /** Non-identity texture matrix for texture unit? */
1220 #define ENABLE_TEXMAT(unit) (1 << (unit))
1224 * Texture coord generation state.
1228 GLenum Mode
; /**< GL_EYE_LINEAR, GL_SPHERE_MAP, etc */
1229 GLbitfield _ModeBit
; /**< TEXGEN_x bit corresponding to Mode */
1230 GLfloat ObjectPlane
[4];
1231 GLfloat EyePlane
[4];
1236 * Texture unit state. Contains enable flags, texture environment/function/
1237 * combiners, texgen state, and pointers to current texture objects.
1239 struct gl_texture_unit
1241 GLbitfield Enabled
; /**< bitmask of TEXTURE_*_BIT flags */
1243 GLenum EnvMode
; /**< GL_MODULATE, GL_DECAL, GL_BLEND, etc. */
1244 GLclampf EnvColor
[4];
1245 GLfloat EnvColorUnclamped
[4];
1247 struct gl_texgen GenS
;
1248 struct gl_texgen GenT
;
1249 struct gl_texgen GenR
;
1250 struct gl_texgen GenQ
;
1251 GLbitfield TexGenEnabled
; /**< Bitwise-OR of [STRQ]_BIT values */
1252 GLbitfield _GenFlags
; /**< Bitwise-OR of Gen[STRQ]._ModeBit */
1254 GLfloat LodBias
; /**< for biasing mipmap levels */
1256 /** Texture targets that have a non-default texture bound */
1257 GLbitfield _BoundTextures
;
1259 /** Current sampler object (GL_ARB_sampler_objects) */
1260 struct gl_sampler_object
*Sampler
;
1263 * \name GL_EXT_texture_env_combine
1265 struct gl_tex_env_combine_state Combine
;
1268 * Derived state based on \c EnvMode and the \c BaseFormat of the
1269 * currently enabled texture.
1271 struct gl_tex_env_combine_state _EnvMode
;
1274 * Currently enabled combiner state. This will point to either
1275 * \c Combine or \c _EnvMode.
1277 struct gl_tex_env_combine_state
*_CurrentCombine
;
1279 /** Current texture object pointers */
1280 struct gl_texture_object
*CurrentTex
[NUM_TEXTURE_TARGETS
];
1282 /** Points to highest priority, complete and enabled texture object */
1283 struct gl_texture_object
*_Current
;
1285 /** Current compressed TexEnv & Combine state */
1286 struct gl_tex_env_combine_packed _CurrentCombinePacked
;
1291 * Texture attribute group (GL_TEXTURE_BIT).
1293 struct gl_texture_attrib
1295 GLuint CurrentUnit
; /**< GL_ACTIVE_TEXTURE */
1297 /** GL_ARB_seamless_cubemap */
1298 GLboolean CubeMapSeamless
;
1300 struct gl_texture_object
*ProxyTex
[NUM_TEXTURE_TARGETS
];
1302 /** GL_ARB_texture_buffer_object */
1303 struct gl_buffer_object
*BufferObject
;
1305 /** Texture coord units/sets used for fragment texturing */
1306 GLbitfield _EnabledCoordUnits
;
1308 /** Texture coord units that have texgen enabled */
1309 GLbitfield _TexGenEnabled
;
1311 /** Texture coord units that have non-identity matrices */
1312 GLbitfield _TexMatEnabled
;
1314 /** Bitwise-OR of all Texture.Unit[i]._GenFlags */
1315 GLbitfield _GenFlags
;
1317 /** Largest index of a texture unit with _Current != NULL. */
1318 GLint _MaxEnabledTexImageUnit
;
1320 /** Largest index + 1 of texture units that have had any CurrentTex set. */
1321 GLint NumCurrentTexUsed
;
1323 struct gl_texture_unit Unit
[MAX_COMBINED_TEXTURE_IMAGE_UNITS
];
1328 * Data structure representing a single clip plane (e.g. one of the elements
1329 * of the ctx->Transform.EyeUserPlane or ctx->Transform._ClipUserPlane array).
1331 typedef GLfloat gl_clip_plane
[4];
1335 * Transformation attribute group (GL_TRANSFORM_BIT).
1337 struct gl_transform_attrib
1339 GLenum MatrixMode
; /**< Matrix mode */
1340 gl_clip_plane EyeUserPlane
[MAX_CLIP_PLANES
]; /**< User clip planes */
1341 gl_clip_plane _ClipUserPlane
[MAX_CLIP_PLANES
]; /**< derived */
1342 GLbitfield ClipPlanesEnabled
; /**< on/off bitmask */
1343 GLboolean Normalize
; /**< Normalize all normals? */
1344 GLboolean RescaleNormals
; /**< GL_EXT_rescale_normal */
1345 GLboolean RasterPositionUnclipped
; /**< GL_IBM_rasterpos_clip */
1346 GLboolean DepthClamp
; /**< GL_ARB_depth_clamp */
1347 /** GL_ARB_clip_control */
1348 GLenum ClipOrigin
; /**< GL_LOWER_LEFT or GL_UPPER_LEFT */
1349 GLenum ClipDepthMode
; /**< GL_NEGATIVE_ONE_TO_ONE or GL_ZERO_TO_ONE */
1354 * Viewport attribute group (GL_VIEWPORT_BIT).
1356 struct gl_viewport_attrib
1358 GLfloat X
, Y
; /**< position */
1359 GLfloat Width
, Height
; /**< size */
1360 GLdouble Near
, Far
; /**< Depth buffer range */
1369 } gl_map_buffer_index
;
1373 * Fields describing a mapped buffer range.
1375 struct gl_buffer_mapping
1377 GLbitfield AccessFlags
; /**< Mask of GL_MAP_x_BIT flags */
1378 GLvoid
*Pointer
; /**< User-space address of mapping */
1379 GLintptr Offset
; /**< Mapped offset */
1380 GLsizeiptr Length
; /**< Mapped length */
1385 * Usages we've seen for a buffer object.
1389 USAGE_UNIFORM_BUFFER
= 0x1,
1390 USAGE_TEXTURE_BUFFER
= 0x2,
1391 USAGE_ATOMIC_COUNTER_BUFFER
= 0x4,
1392 USAGE_SHADER_STORAGE_BUFFER
= 0x8,
1393 USAGE_TRANSFORM_FEEDBACK_BUFFER
= 0x10,
1394 USAGE_PIXEL_PACK_BUFFER
= 0x20,
1395 USAGE_DISABLE_MINMAX_CACHE
= 0x40,
1400 * GL_ARB_vertex/pixel_buffer_object buffer object
1402 struct gl_buffer_object
1407 GLchar
*Label
; /**< GL_KHR_debug */
1408 GLenum Usage
; /**< GL_STREAM_DRAW_ARB, GL_STREAM_READ_ARB, etc. */
1409 GLbitfield StorageFlags
; /**< GL_MAP_PERSISTENT_BIT, etc. */
1410 GLsizeiptrARB Size
; /**< Size of buffer storage in bytes */
1411 GLubyte
*Data
; /**< Location of storage either in RAM or VRAM. */
1412 GLboolean DeletePending
; /**< true if buffer object is removed from the hash */
1413 GLboolean Written
; /**< Ever written to? (for debugging) */
1414 GLboolean Purgeable
; /**< Is the buffer purgeable under memory pressure? */
1415 GLboolean Immutable
; /**< GL_ARB_buffer_storage */
1416 gl_buffer_usage UsageHistory
; /**< How has this buffer been used so far? */
1418 /** Counters used for buffer usage warnings */
1419 GLuint NumSubDataCalls
;
1420 GLuint NumMapBufferWriteCalls
;
1422 struct gl_buffer_mapping Mappings
[MAP_COUNT
];
1424 /** Memoization of min/max index computations for static index buffers */
1425 struct hash_table
*MinMaxCache
;
1426 unsigned MinMaxCacheHitIndices
;
1427 unsigned MinMaxCacheMissIndices
;
1428 bool MinMaxCacheDirty
;
1430 bool HandleAllocated
; /**< GL_ARB_bindless_texture */
1435 * Client pixel packing/unpacking attributes
1437 struct gl_pixelstore_attrib
1445 GLboolean SwapBytes
;
1447 GLboolean Invert
; /**< GL_MESA_pack_invert */
1448 GLint CompressedBlockWidth
; /**< GL_ARB_compressed_texture_pixel_storage */
1449 GLint CompressedBlockHeight
;
1450 GLint CompressedBlockDepth
;
1451 GLint CompressedBlockSize
;
1452 struct gl_buffer_object
*BufferObj
; /**< GL_ARB_pixel_buffer_object */
1457 * Vertex array information which is derived from gl_array_attributes
1458 * and gl_vertex_buffer_binding information. Used by the VBO module and
1461 struct gl_vertex_array
1463 GLint Size
; /**< components per element (1,2,3,4) */
1464 GLenum Type
; /**< datatype: GL_FLOAT, GL_INT, etc */
1465 GLenum Format
; /**< default: GL_RGBA, but may be GL_BGRA */
1466 GLsizei StrideB
; /**< actual stride in bytes */
1467 GLuint _ElementSize
; /**< size of each element in bytes */
1468 const GLubyte
*Ptr
; /**< Points to array data */
1469 GLboolean Normalized
; /**< GL_ARB_vertex_program */
1470 GLboolean Integer
; /**< Integer-valued? */
1471 GLboolean Doubles
; /**< double precision values are not converted to floats */
1472 GLuint InstanceDivisor
; /**< GL_ARB_instanced_arrays */
1474 struct gl_buffer_object
*BufferObj
;/**< GL_ARB_vertex_buffer_object */
1479 * Attributes to describe a vertex array.
1481 * Contains the size, type, format and normalization flag,
1482 * along with the index of a vertex buffer binding point.
1484 * Note that the Stride field corresponds to VERTEX_ATTRIB_ARRAY_STRIDE
1485 * and is only present for backwards compatibility reasons.
1486 * Rendering always uses VERTEX_BINDING_STRIDE.
1487 * The gl*Pointer() functions will set VERTEX_ATTRIB_ARRAY_STRIDE
1488 * and VERTEX_BINDING_STRIDE to the same value, while
1489 * glBindVertexBuffer() will only set VERTEX_BINDING_STRIDE.
1491 struct gl_array_attributes
1493 GLint Size
; /**< Components per element (1,2,3,4) */
1494 GLenum Type
; /**< Datatype: GL_FLOAT, GL_INT, etc */
1495 GLenum Format
; /**< Default: GL_RGBA, but may be GL_BGRA */
1496 GLsizei Stride
; /**< Stride as specified with gl*Pointer() */
1497 const GLubyte
*Ptr
; /**< Points to client array data. Not used when a VBO is bound */
1498 GLintptr RelativeOffset
; /**< Offset of the first element relative to the binding offset */
1499 GLboolean Enabled
; /**< Whether the array is enabled */
1500 GLboolean Normalized
; /**< Fixed-point values are normalized when converted to floats */
1501 GLboolean Integer
; /**< Fixed-point values are not converted to floats */
1502 GLboolean Doubles
; /**< double precision values are not converted to floats */
1503 GLuint _ElementSize
; /**< Size of each element in bytes */
1504 GLuint BufferBindingIndex
; /**< Vertex buffer binding */
1509 * This describes the buffer object used for a vertex array (or
1510 * multiple vertex arrays). If BufferObj points to the default/null
1511 * buffer object, then the vertex array lives in user memory and not a VBO.
1513 struct gl_vertex_buffer_binding
1515 GLintptr Offset
; /**< User-specified offset */
1516 GLsizei Stride
; /**< User-specified stride */
1517 GLuint InstanceDivisor
; /**< GL_ARB_instanced_arrays */
1518 struct gl_buffer_object
*BufferObj
; /**< GL_ARB_vertex_buffer_object */
1519 GLbitfield _BoundArrays
; /**< Arrays bound to this binding point */
1524 * A representation of "Vertex Array Objects" (VAOs) from OpenGL 3.1+ /
1525 * the GL_ARB_vertex_array_object extension.
1527 struct gl_vertex_array_object
1529 /** Name of the VAO as received from glGenVertexArray. */
1534 GLchar
*Label
; /**< GL_KHR_debug */
1537 * Has this array object been bound?
1539 GLboolean EverBound
;
1542 * Derived vertex attribute arrays
1544 * This is a legacy data structure created from gl_array_attributes and
1545 * gl_vertex_buffer_binding, for compatibility with existing driver code.
1547 struct gl_vertex_array _VertexAttrib
[VERT_ATTRIB_MAX
];
1549 /** Vertex attribute arrays */
1550 struct gl_array_attributes VertexAttrib
[VERT_ATTRIB_MAX
];
1552 /** Vertex buffer bindings */
1553 struct gl_vertex_buffer_binding BufferBinding
[VERT_ATTRIB_MAX
];
1555 /** Mask indicating which vertex arrays have vertex buffer associated. */
1556 GLbitfield VertexAttribBufferMask
;
1558 /** Mask of VERT_BIT_* values indicating which arrays are enabled */
1559 GLbitfield _Enabled
;
1561 /** Mask of VERT_BIT_* values indicating changed/dirty arrays */
1562 GLbitfield NewArrays
;
1564 /** The index buffer (also known as the element array buffer in OpenGL). */
1565 struct gl_buffer_object
*IndexBufferObj
;
1570 * Used to signal when transitioning from one kind of drawing method
1575 DRAW_NONE
, /**< Initial value only */
1583 * Enum for the OpenGL APIs we know about and may support.
1585 * NOTE: This must match the api_enum table in
1586 * src/mesa/main/get_hash_generator.py
1590 API_OPENGL_COMPAT
, /* legacy / compatibility contexts */
1594 API_OPENGL_LAST
= API_OPENGL_CORE
1599 * Vertex array state
1601 struct gl_array_attrib
1603 /** Currently bound array object. */
1604 struct gl_vertex_array_object
*VAO
;
1606 /** The default vertex array object */
1607 struct gl_vertex_array_object
*DefaultVAO
;
1609 /** The last VAO accessed by a DSA function */
1610 struct gl_vertex_array_object
*LastLookedUpVAO
;
1612 /** Array objects (GL_ARB_vertex_array_object) */
1613 struct _mesa_HashTable
*Objects
;
1615 GLint ActiveTexture
; /**< Client Active Texture */
1616 GLuint LockFirst
; /**< GL_EXT_compiled_vertex_array */
1617 GLuint LockCount
; /**< GL_EXT_compiled_vertex_array */
1620 * \name Primitive restart controls
1622 * Primitive restart is enabled if either \c PrimitiveRestart or
1623 * \c PrimitiveRestartFixedIndex is set.
1626 GLboolean PrimitiveRestart
;
1627 GLboolean PrimitiveRestartFixedIndex
;
1628 GLboolean _PrimitiveRestart
;
1629 GLuint RestartIndex
;
1632 /** One of the DRAW_xxx flags, not consumed by drivers */
1633 gl_draw_method DrawMethod
;
1635 /* GL_ARB_vertex_buffer_object */
1636 struct gl_buffer_object
*ArrayBufferObj
;
1639 * Vertex arrays as consumed by a driver.
1640 * The array pointer is set up only by the VBO module.
1642 const struct gl_vertex_array
**_DrawArrays
; /**< 0..VERT_ATTRIB_MAX-1 */
1644 /** Legal array datatypes and the API for which they have been computed */
1645 GLbitfield LegalTypesMask
;
1646 gl_api LegalTypesMaskAPI
;
1651 * Feedback buffer state
1656 GLbitfield _Mask
; /**< FB_* bits */
1664 * Selection buffer state
1668 GLuint
*Buffer
; /**< selection buffer */
1669 GLuint BufferSize
; /**< size of the selection buffer */
1670 GLuint BufferCount
; /**< number of values in the selection buffer */
1671 GLuint Hits
; /**< number of records in the selection buffer */
1672 GLuint NameStackDepth
; /**< name stack depth */
1673 GLuint NameStack
[MAX_NAME_STACK_DEPTH
]; /**< name stack */
1674 GLboolean HitFlag
; /**< hit flag */
1675 GLfloat HitMinZ
; /**< minimum hit depth */
1676 GLfloat HitMaxZ
; /**< maximum hit depth */
1681 * 1-D Evaluator control points
1685 GLuint Order
; /**< Number of control points */
1686 GLfloat u1
, u2
, du
; /**< u1, u2, 1.0/(u2-u1) */
1687 GLfloat
*Points
; /**< Points to contiguous control points */
1692 * 2-D Evaluator control points
1696 GLuint Uorder
; /**< Number of control points in U dimension */
1697 GLuint Vorder
; /**< Number of control points in V dimension */
1700 GLfloat
*Points
; /**< Points to contiguous control points */
1705 * All evaluator control point state
1707 struct gl_evaluators
1713 struct gl_1d_map Map1Vertex3
;
1714 struct gl_1d_map Map1Vertex4
;
1715 struct gl_1d_map Map1Index
;
1716 struct gl_1d_map Map1Color4
;
1717 struct gl_1d_map Map1Normal
;
1718 struct gl_1d_map Map1Texture1
;
1719 struct gl_1d_map Map1Texture2
;
1720 struct gl_1d_map Map1Texture3
;
1721 struct gl_1d_map Map1Texture4
;
1728 struct gl_2d_map Map2Vertex3
;
1729 struct gl_2d_map Map2Vertex4
;
1730 struct gl_2d_map Map2Index
;
1731 struct gl_2d_map Map2Color4
;
1732 struct gl_2d_map Map2Normal
;
1733 struct gl_2d_map Map2Texture1
;
1734 struct gl_2d_map Map2Texture2
;
1735 struct gl_2d_map Map2Texture3
;
1736 struct gl_2d_map Map2Texture4
;
1741 struct gl_transform_feedback_varying_info
1752 * Per-output info vertex shaders for transform feedback.
1754 struct gl_transform_feedback_output
1756 uint32_t OutputRegister
;
1757 uint32_t OutputBuffer
;
1758 uint32_t NumComponents
;
1761 /** offset (in DWORDs) of this output within the interleaved structure */
1765 * Offset into the output register of the data to output. For example,
1766 * if NumComponents is 2 and ComponentOffset is 1, then the data to
1767 * offset is in the y and z components of the output register.
1769 uint32_t ComponentOffset
;
1773 struct gl_transform_feedback_buffer
1777 uint32_t NumVaryings
;
1780 * Total number of components stored in each buffer. This may be used by
1781 * hardware back-ends to determine the correct stride when interleaving
1782 * multiple transform feedback outputs in the same buffer.
1787 * Which transform feedback stream this buffer binding is associated with.
1793 /** Post-link transform feedback info. */
1794 struct gl_transform_feedback_info
1796 /* Was xfb enabled via the api or in shader layout qualifiers */
1799 unsigned NumOutputs
;
1801 /* Bitmask of active buffer indices. */
1802 unsigned ActiveBuffers
;
1804 struct gl_transform_feedback_output
*Outputs
;
1806 /** Transform feedback varyings used for the linking of this shader program.
1808 * Use for glGetTransformFeedbackVarying().
1810 struct gl_transform_feedback_varying_info
*Varyings
;
1813 struct gl_transform_feedback_buffer Buffers
[MAX_FEEDBACK_BUFFERS
];
1818 * Transform feedback object state
1820 struct gl_transform_feedback_object
1822 GLuint Name
; /**< AKA the object ID */
1824 GLchar
*Label
; /**< GL_KHR_debug */
1825 GLboolean Active
; /**< Is transform feedback enabled? */
1826 GLboolean Paused
; /**< Is transform feedback paused? */
1827 GLboolean EndedAnytime
; /**< Has EndTransformFeedback been called
1829 GLboolean EverBound
; /**< Has this object been bound? */
1832 * GLES: if Active is true, remaining number of primitives which can be
1833 * rendered without overflow. This is necessary to track because GLES
1834 * requires us to generate INVALID_OPERATION if a call to glDrawArrays or
1835 * glDrawArraysInstanced would overflow transform feedback buffers.
1836 * Undefined if Active is false.
1838 * Not tracked for desktop GL since it's unnecessary.
1840 unsigned GlesRemainingPrims
;
1843 * The program active when BeginTransformFeedback() was called.
1844 * When active and unpaused, this equals ctx->Shader.CurrentProgram[stage],
1845 * where stage is the pipeline stage that is the source of data for
1846 * transform feedback.
1848 struct gl_program
*program
;
1850 /** The feedback buffers */
1851 GLuint BufferNames
[MAX_FEEDBACK_BUFFERS
];
1852 struct gl_buffer_object
*Buffers
[MAX_FEEDBACK_BUFFERS
];
1854 /** Start of feedback data in dest buffer */
1855 GLintptr Offset
[MAX_FEEDBACK_BUFFERS
];
1858 * Max data to put into dest buffer (in bytes). Computed based on
1859 * RequestedSize and the actual size of the buffer.
1861 GLsizeiptr Size
[MAX_FEEDBACK_BUFFERS
];
1864 * Size that was specified when the buffer was bound. If the buffer was
1865 * bound with glBindBufferBase() or glBindBufferOffsetEXT(), this value is
1868 GLsizeiptr RequestedSize
[MAX_FEEDBACK_BUFFERS
];
1873 * Context state for transform feedback.
1875 struct gl_transform_feedback_state
1877 GLenum Mode
; /**< GL_POINTS, GL_LINES or GL_TRIANGLES */
1879 /** The general binding point (GL_TRANSFORM_FEEDBACK_BUFFER) */
1880 struct gl_buffer_object
*CurrentBuffer
;
1882 /** The table of all transform feedback objects */
1883 struct _mesa_HashTable
*Objects
;
1885 /** The current xform-fb object (GL_TRANSFORM_FEEDBACK_BINDING) */
1886 struct gl_transform_feedback_object
*CurrentObject
;
1888 /** The default xform-fb object (Name==0) */
1889 struct gl_transform_feedback_object
*DefaultObject
;
1894 * A "performance monitor" as described in AMD_performance_monitor.
1896 struct gl_perf_monitor_object
1900 /** True if the monitor is currently active (Begin called but not End). */
1904 * True if the monitor has ended.
1906 * This is distinct from !Active because it may never have began.
1911 * A list of groups with currently active counters.
1913 * ActiveGroups[g] == n if there are n counters active from group 'g'.
1915 unsigned *ActiveGroups
;
1918 * An array of bitsets, subscripted by group ID, then indexed by counter ID.
1920 * Checking whether counter 'c' in group 'g' is active can be done via:
1922 * BITSET_TEST(ActiveCounters[g], c)
1924 GLuint
**ActiveCounters
;
1928 union gl_perf_monitor_counter_value
1936 struct gl_perf_monitor_counter
1938 /** Human readable name for the counter. */
1942 * Data type of the counter. Valid values are FLOAT, UNSIGNED_INT,
1943 * UNSIGNED_INT64_AMD, and PERCENTAGE_AMD.
1947 /** Minimum counter value. */
1948 union gl_perf_monitor_counter_value Minimum
;
1950 /** Maximum counter value. */
1951 union gl_perf_monitor_counter_value Maximum
;
1955 struct gl_perf_monitor_group
1957 /** Human readable name for the group. */
1961 * Maximum number of counters in this group which can be active at the
1964 GLuint MaxActiveCounters
;
1966 /** Array of counters within this group. */
1967 const struct gl_perf_monitor_counter
*Counters
;
1973 * A query object instance as described in INTEL_performance_query.
1975 * NB: We want to keep this and the corresponding backend structure
1976 * relatively lean considering that applications may expect to
1977 * allocate enough objects to be able to query around all draw calls
1980 struct gl_perf_query_object
1982 GLuint Id
; /**< hash table ID/name */
1983 unsigned Used
:1; /**< has been used for 1 or more queries */
1984 unsigned Active
:1; /**< inside Begin/EndPerfQuery */
1985 unsigned Ready
:1; /**< result is ready? */
1990 * Context state for AMD_performance_monitor.
1992 struct gl_perf_monitor_state
1994 /** Array of performance monitor groups (indexed by group ID) */
1995 const struct gl_perf_monitor_group
*Groups
;
1998 /** The table of all performance monitors. */
1999 struct _mesa_HashTable
*Monitors
;
2004 * Context state for INTEL_performance_query.
2006 struct gl_perf_query_state
2008 struct _mesa_HashTable
*Objects
; /**< The table of all performance query objects */
2013 * A bindless sampler object.
2015 struct gl_bindless_sampler
2017 /** Texture unit (set by glUniform1()). */
2020 /** Whether this bindless sampler is bound to a unit. */
2023 /** Texture Target (TEXTURE_1D/2D/3D/etc_INDEX). */
2024 gl_texture_index target
;
2026 /** Pointer to the base of the data. */
2032 * A bindless image object.
2034 struct gl_bindless_image
2036 /** Image unit (set by glUniform1()). */
2039 /** Whether this bindless image is bound to a unit. */
2042 /** Access qualifier (GL_READ_WRITE, GL_READ_ONLY, GL_WRITE_ONLY) */
2045 /** Pointer to the base of the data. */
2051 * Names of the various vertex/fragment program register files, etc.
2053 * NOTE: first four tokens must fit into 2 bits (see t_vb_arbprogram.c)
2054 * All values should fit in a 4-bit field.
2056 * NOTE: PROGRAM_STATE_VAR, PROGRAM_CONSTANT, and PROGRAM_UNIFORM can all be
2057 * considered to be "uniform" variables since they can only be set outside
2058 * glBegin/End. They're also all stored in the same Parameters array.
2062 PROGRAM_TEMPORARY
, /**< machine->Temporary[] */
2063 PROGRAM_ARRAY
, /**< Arrays & Matrixes */
2064 PROGRAM_INPUT
, /**< machine->Inputs[] */
2065 PROGRAM_OUTPUT
, /**< machine->Outputs[] */
2066 PROGRAM_STATE_VAR
, /**< gl_program->Parameters[] */
2067 PROGRAM_CONSTANT
, /**< gl_program->Parameters[] */
2068 PROGRAM_UNIFORM
, /**< gl_program->Parameters[] */
2069 PROGRAM_WRITE_ONLY
, /**< A dummy, write-only register */
2070 PROGRAM_ADDRESS
, /**< machine->AddressReg */
2071 PROGRAM_SAMPLER
, /**< for shader samplers, compile-time only */
2072 PROGRAM_SYSTEM_VALUE
,/**< InstanceId, PrimitiveID, etc. */
2073 PROGRAM_UNDEFINED
, /**< Invalid/TBD value */
2074 PROGRAM_IMMEDIATE
, /**< Immediate value, used by TGSI */
2075 PROGRAM_BUFFER
, /**< for shader buffers, compile-time only */
2076 PROGRAM_MEMORY
, /**< for shared, global and local memory */
2077 PROGRAM_IMAGE
, /**< for shader images, compile-time only */
2078 PROGRAM_HW_ATOMIC
, /**< for hw atomic counters, compile-time only */
2084 * Base class for any kind of program object
2088 /** FIXME: This must be first until we split shader_info from nir_shader */
2089 struct shader_info info
;
2093 GLubyte
*String
; /**< Null-terminated program text */
2095 GLenum Target
; /**< GL_VERTEX/FRAGMENT_PROGRAM_ARB, GL_GEOMETRY_PROGRAM_NV */
2096 GLenum Format
; /**< String encoding format */
2098 GLboolean _Used
; /**< Ever used for drawing? Used for debugging */
2100 struct nir_shader
*nir
;
2102 /* Saved and restored with metadata. Freed with ralloc. */
2103 void *driver_cache_blob
;
2104 size_t driver_cache_blob_size
;
2106 bool is_arb_asm
; /** Is this an ARB assembly-style program */
2108 /** Is this program written to on disk shader cache */
2109 bool program_written_to_cache
;
2111 GLbitfield64 SecondaryOutputsWritten
; /**< Subset of OutputsWritten outputs written with non-zero index. */
2112 GLbitfield TexturesUsed
[MAX_COMBINED_TEXTURE_IMAGE_UNITS
]; /**< TEXTURE_x_BIT bitmask */
2113 GLbitfield SamplersUsed
; /**< Bitfield of which samplers are used */
2114 GLbitfield ShadowSamplers
; /**< Texture units used for shadow sampling. */
2115 GLbitfield ExternalSamplersUsed
; /**< Texture units used for samplerExternalOES */
2117 /* Fragement shader only fields */
2118 GLboolean OriginUpperLeft
;
2119 GLboolean PixelCenterInteger
;
2121 /** Named parameters, constants, etc. from program text */
2122 struct gl_program_parameter_list
*Parameters
;
2124 /** Map from sampler unit to texture unit (set by glUniform1i()) */
2125 GLubyte SamplerUnits
[MAX_SAMPLERS
];
2127 /* FIXME: We should be able to make this struct a union. However some
2128 * drivers (i915/fragment_programs, swrast/prog_execute) mix the use of
2129 * these fields, we should fix this.
2132 /** Fields used by GLSL programs */
2134 /** Data shared by gl_program and gl_shader_program */
2135 struct gl_shader_program_data
*data
;
2137 struct gl_active_atomic_buffer
**AtomicBuffers
;
2139 /** Post-link transform feedback info. */
2140 struct gl_transform_feedback_info
*LinkedTransformFeedback
;
2143 * Number of types for subroutine uniforms.
2145 GLuint NumSubroutineUniformTypes
;
2148 * Subroutine uniform remap table
2149 * based on the program level uniform remap table.
2151 GLuint NumSubroutineUniforms
; /* non-sparse total */
2152 GLuint NumSubroutineUniformRemapTable
;
2153 struct gl_uniform_storage
**SubroutineUniformRemapTable
;
2156 * Num of subroutine functions for this stage and storage for them.
2158 GLuint NumSubroutineFunctions
;
2159 GLuint MaxSubroutineFunctionIndex
;
2160 struct gl_subroutine_function
*SubroutineFunctions
;
2163 * Map from image uniform index to image unit (set by glUniform1i())
2165 * An image uniform index is associated with each image uniform by
2166 * the linker. The image index associated with each uniform is
2167 * stored in the \c gl_uniform_storage::image field.
2169 GLubyte ImageUnits
[MAX_IMAGE_UNIFORMS
];
2172 * Access qualifier specified in the shader for each image uniform
2173 * index. Either \c GL_READ_ONLY, \c GL_WRITE_ONLY or \c
2176 * It may be different, though only more strict than the value of
2177 * \c gl_image_unit::Access for the corresponding image unit.
2179 GLenum ImageAccess
[MAX_IMAGE_UNIFORMS
];
2181 struct gl_uniform_block
**UniformBlocks
;
2182 struct gl_uniform_block
**ShaderStorageBlocks
;
2184 /** Which texture target is being sampled
2185 * (TEXTURE_1D/2D/3D/etc_INDEX)
2187 gl_texture_index SamplerTargets
[MAX_SAMPLERS
];
2190 * Number of samplers declared with the bindless_sampler layout
2191 * qualifier as specified by ARB_bindless_texture.
2193 GLuint NumBindlessSamplers
;
2194 GLboolean HasBoundBindlessSampler
;
2195 struct gl_bindless_sampler
*BindlessSamplers
;
2198 * Number of images declared with the bindless_image layout qualifier
2199 * as specified by ARB_bindless_texture.
2201 GLuint NumBindlessImages
;
2202 GLboolean HasBoundBindlessImage
;
2203 struct gl_bindless_image
*BindlessImages
;
2208 * A bitmask of gl_advanced_blend_mode values
2210 GLbitfield BlendSupport
;
2215 /** ARB assembly-style program fields */
2217 struct prog_instruction
*Instructions
;
2220 * Local parameters used by the program.
2222 * It's dynamically allocated because it is rarely used (just
2223 * assembly-style programs), and MAX_PROGRAM_LOCAL_PARAMS entries
2224 * once it's allocated.
2226 GLfloat (*LocalParams
)[4];
2228 /** Bitmask of which register files are read/written with indirect
2229 * addressing. Mask of (1 << PROGRAM_x) bits.
2231 GLbitfield IndirectRegisterFiles
;
2233 /** Logical counts */
2235 GLuint NumInstructions
;
2236 GLuint NumTemporaries
;
2237 GLuint NumParameters
;
2238 GLuint NumAttributes
;
2239 GLuint NumAddressRegs
;
2240 GLuint NumAluInstructions
;
2241 GLuint NumTexInstructions
;
2242 GLuint NumTexIndirections
;
2244 /** Native, actual h/w counts */
2246 GLuint NumNativeInstructions
;
2247 GLuint NumNativeTemporaries
;
2248 GLuint NumNativeParameters
;
2249 GLuint NumNativeAttributes
;
2250 GLuint NumNativeAddressRegs
;
2251 GLuint NumNativeAluInstructions
;
2252 GLuint NumNativeTexInstructions
;
2253 GLuint NumNativeTexIndirections
;
2256 /** Used by ARB assembly-style programs. Can only be true for vertex
2259 GLboolean IsPositionInvariant
;
2266 * State common to vertex and fragment programs.
2268 struct gl_program_state
2270 GLint ErrorPos
; /* GL_PROGRAM_ERROR_POSITION_ARB/NV */
2271 const char *ErrorString
; /* GL_PROGRAM_ERROR_STRING_ARB/NV */
2276 * Context state for vertex programs.
2278 struct gl_vertex_program_state
2280 GLboolean Enabled
; /**< User-set GL_VERTEX_PROGRAM_ARB/NV flag */
2281 GLboolean PointSizeEnabled
; /**< GL_VERTEX_PROGRAM_POINT_SIZE_ARB/NV */
2282 GLboolean TwoSideEnabled
; /**< GL_VERTEX_PROGRAM_TWO_SIDE_ARB/NV */
2283 /** Should fixed-function T&L be implemented with a vertex prog? */
2284 GLboolean _MaintainTnlProgram
;
2286 struct gl_program
*Current
; /**< User-bound vertex program */
2288 /** Currently enabled and valid vertex program (including internal
2289 * programs, user-defined vertex programs and GLSL vertex shaders).
2290 * This is the program we must use when rendering.
2292 struct gl_program
*_Current
;
2294 GLfloat Parameters
[MAX_PROGRAM_ENV_PARAMS
][4]; /**< Env params */
2296 /** Program to emulate fixed-function T&L (see above) */
2297 struct gl_program
*_TnlProgram
;
2299 /** Cache of fixed-function programs */
2300 struct gl_program_cache
*Cache
;
2302 GLboolean _Overriden
;
2306 * Context state for tessellation control programs.
2308 struct gl_tess_ctrl_program_state
2310 /** Currently bound and valid shader. */
2311 struct gl_program
*_Current
;
2313 GLint patch_vertices
;
2314 GLfloat patch_default_outer_level
[4];
2315 GLfloat patch_default_inner_level
[2];
2319 * Context state for tessellation evaluation programs.
2321 struct gl_tess_eval_program_state
2323 /** Currently bound and valid shader. */
2324 struct gl_program
*_Current
;
2328 * Context state for geometry programs.
2330 struct gl_geometry_program_state
2332 /** Currently enabled and valid program (including internal programs
2333 * and compiled shader programs).
2335 struct gl_program
*_Current
;
2339 * Context state for fragment programs.
2341 struct gl_fragment_program_state
2343 GLboolean Enabled
; /**< User-set fragment program enable flag */
2344 /** Should fixed-function texturing be implemented with a fragment prog? */
2345 GLboolean _MaintainTexEnvProgram
;
2347 struct gl_program
*Current
; /**< User-bound fragment program */
2349 /** Currently enabled and valid fragment program (including internal
2350 * programs, user-defined fragment programs and GLSL fragment shaders).
2351 * This is the program we must use when rendering.
2353 struct gl_program
*_Current
;
2355 GLfloat Parameters
[MAX_PROGRAM_ENV_PARAMS
][4]; /**< Env params */
2357 /** Program to emulate fixed-function texture env/combine (see above) */
2358 struct gl_program
*_TexEnvProgram
;
2360 /** Cache of fixed-function programs */
2361 struct gl_program_cache
*Cache
;
2366 * Context state for compute programs.
2368 struct gl_compute_program_state
2370 /** Currently enabled and valid program (including internal programs
2371 * and compiled shader programs).
2373 struct gl_program
*_Current
;
2378 * ATI_fragment_shader runtime state
2381 struct atifs_instruction
;
2382 struct atifs_setupinst
;
2385 * ATI fragment shader
2387 struct ati_fragment_shader
2391 struct atifs_instruction
*Instructions
[2];
2392 struct atifs_setupinst
*SetupInst
[2];
2393 GLfloat Constants
[8][4];
2394 GLbitfield LocalConstDef
; /**< Indicates which constants have been set */
2395 GLubyte numArithInstr
[2];
2396 GLubyte regsAssigned
[2];
2397 GLubyte NumPasses
; /**< 1 or 2 */
2398 /** Current compile stage: 0 setup pass1, 1 arith pass1, 2 setup pass2, 3 arith pass2 */
2400 GLubyte last_optype
;
2401 GLboolean interpinp1
;
2403 /** Array of 2 bit values for each tex unit to remember whether
2404 * STR or STQ swizzle was used
2407 struct gl_program
*Program
;
2411 * Context state for GL_ATI_fragment_shader
2413 struct gl_ati_fragment_shader_state
2416 GLboolean Compiling
;
2417 GLfloat GlobalConstants
[8][4];
2418 struct ati_fragment_shader
*Current
;
2422 * Shader subroutine function definition
2424 struct gl_subroutine_function
2428 int num_compat_types
;
2429 const struct glsl_type
**types
;
2433 * Shader information needed by both gl_shader and gl_linked shader.
2435 struct gl_shader_info
2438 * Tessellation Control shader state from layout qualifiers.
2442 * 0 - vertices not declared in shader, or
2443 * 1 .. GL_MAX_PATCH_VERTICES
2449 * Tessellation Evaluation shader state from layout qualifiers.
2453 * GL_TRIANGLES, GL_QUADS, GL_ISOLINES or PRIM_UNKNOWN if it's not set
2456 GLenum PrimitiveMode
;
2458 enum gl_tess_spacing Spacing
;
2461 * GL_CW, GL_CCW, or 0 if it's not set in this shader.
2465 * 1, 0, or -1 if it's not set in this shader.
2471 * Geometry shader state from GLSL 1.50 layout qualifiers.
2476 * 0 - Invocations count not declared in shader, or
2477 * 1 .. MAX_GEOMETRY_SHADER_INVOCATIONS
2481 * GL_POINTS, GL_LINES, GL_LINES_ADJACENCY, GL_TRIANGLES, or
2482 * GL_TRIANGLES_ADJACENCY, or PRIM_UNKNOWN if it's not set in this
2487 * GL_POINTS, GL_LINE_STRIP or GL_TRIANGLE_STRIP, or PRIM_UNKNOWN if
2488 * it's not set in this shader.
2494 * Compute shader state from ARB_compute_shader and
2495 * ARB_compute_variable_group_size layout qualifiers.
2499 * Size specified using local_size_{x,y,z}, or all 0's to indicate that
2500 * it's not set in this shader.
2502 unsigned LocalSize
[3];
2505 * Whether a variable work group size has been specified as defined by
2506 * ARB_compute_variable_group_size.
2508 bool LocalSizeVariable
;
2513 * A linked GLSL shader object.
2515 struct gl_linked_shader
2517 gl_shader_stage Stage
;
2520 unsigned SourceChecksum
;
2523 struct gl_program
*Program
; /**< Post-compile assembly code */
2526 * \name Sampler tracking
2528 * \note Each of these fields is only set post-linking.
2531 GLbitfield shadow_samplers
; /**< Samplers used for shadow sampling. */
2535 * Number of default uniform block components used by this shader.
2537 * This field is only set post-linking.
2539 unsigned num_uniform_components
;
2542 * Number of combined uniform components used by this shader.
2544 * This field is only set post-linking. It is the sum of the uniform block
2545 * sizes divided by sizeof(float), and num_uniform_compoennts.
2547 unsigned num_combined_uniform_components
;
2549 struct exec_list
*ir
;
2550 struct exec_list
*packed_varyings
;
2551 struct exec_list
*fragdata_arrays
;
2552 struct glsl_symbol_table
*symbols
;
2557 * Compile status enum. compile_skipped is used to indicate the compile
2558 * was skipped due to the shader matching one that's been seen before by
2559 * the on-disk cache.
2561 enum gl_compile_status
2563 compile_failure
= 0,
2570 * A GLSL shader object.
2574 /** GL_FRAGMENT_SHADER || GL_VERTEX_SHADER || GL_GEOMETRY_SHADER_ARB ||
2575 * GL_TESS_CONTROL_SHADER || GL_TESS_EVALUATION_SHADER.
2576 * Must be the first field.
2579 gl_shader_stage Stage
;
2580 GLuint Name
; /**< AKA the handle */
2581 GLint RefCount
; /**< Reference count */
2582 GLchar
*Label
; /**< GL_KHR_debug */
2583 unsigned char sha1
[20]; /**< SHA1 hash of pre-processed source */
2584 GLboolean DeletePending
;
2585 bool IsES
; /**< True if this shader uses GLSL ES */
2587 enum gl_compile_status CompileStatus
;
2590 unsigned SourceChecksum
; /**< for debug/logging purposes */
2592 const GLchar
*Source
; /**< Source code string */
2594 const GLchar
*FallbackSource
; /**< Fallback string used by on-disk cache*/
2598 unsigned Version
; /**< GLSL version used for linking */
2601 * A bitmask of gl_advanced_blend_mode values
2603 GLbitfield BlendSupport
;
2605 struct exec_list
*ir
;
2606 struct glsl_symbol_table
*symbols
;
2609 * Whether early fragment tests are enabled as defined by
2610 * ARB_shader_image_load_store.
2612 bool EarlyFragmentTests
;
2614 bool ARB_fragment_coord_conventions_enable
;
2616 bool redeclares_gl_fragcoord
;
2617 bool uses_gl_fragcoord
;
2619 bool PostDepthCoverage
;
2623 * Fragment shader state from GLSL 1.50 layout qualifiers.
2625 bool origin_upper_left
;
2626 bool pixel_center_integer
;
2629 * Whether bindless_sampler/bindless_image, and respectively
2630 * bound_sampler/bound_image are declared at global scope as defined by
2631 * ARB_bindless_texture.
2633 bool bindless_sampler
;
2634 bool bindless_image
;
2638 /** Global xfb_stride out qualifier if any */
2639 GLuint TransformFeedbackBufferStride
[MAX_FEEDBACK_BUFFERS
];
2641 struct gl_shader_info info
;
2643 /* ARB_gl_spirv related data */
2644 struct gl_shader_spirv_data
*spirv_data
;
2648 struct gl_uniform_buffer_variable
2653 * Name of the uniform as seen by glGetUniformIndices.
2655 * glGetUniformIndices requires that the block instance index \b not be
2656 * present in the name of queried uniforms.
2659 * \c gl_uniform_buffer_variable::IndexName and
2660 * \c gl_uniform_buffer_variable::Name may point to identical storage.
2664 const struct glsl_type
*Type
;
2665 unsigned int Offset
;
2670 struct gl_uniform_block
2672 /** Declared name of the uniform block */
2675 /** Array of supplemental information about UBO ir_variables. */
2676 struct gl_uniform_buffer_variable
*Uniforms
;
2680 * Index (GL_UNIFORM_BLOCK_BINDING) into ctx->UniformBufferBindings[] to use
2681 * with glBindBufferBase to bind a buffer object to this uniform block.
2686 * Minimum size (in bytes) of a buffer object to back this uniform buffer
2687 * (GL_UNIFORM_BLOCK_DATA_SIZE).
2689 GLuint UniformBufferSize
;
2691 /** Stages that reference this block */
2695 * Linearized array index for uniform block instance arrays
2697 * Given a uniform block instance array declared with size
2698 * blk[s_0][s_1]..[s_m], the block referenced by blk[i_0][i_1]..[i_m] will
2699 * have the linearized array index
2702 * i_m + ∑ i_j * ∏ s_k
2705 * For a uniform block instance that is not an array, this is always 0.
2707 uint8_t linearized_array_index
;
2710 * Layout specified in the shader
2712 * This isn't accessible through the API, but it is used while
2713 * cross-validating uniform blocks.
2715 enum glsl_interface_packing _Packing
;
2716 GLboolean _RowMajor
;
2720 * Structure that represents a reference to an atomic buffer from some
2723 struct gl_active_atomic_buffer
2725 /** Uniform indices of the atomic counters declared within it. */
2729 /** Binding point index associated with it. */
2732 /** Minimum reasonable size it is expected to have. */
2735 /** Shader stages making use of it. */
2736 GLboolean StageReferences
[MESA_SHADER_STAGES
];
2740 * Data container for shader queries. This holds only the minimal
2741 * amount of required information for resource queries to work.
2743 struct gl_shader_variable
2746 * Declared type of the variable
2748 const struct glsl_type
*type
;
2751 * If the variable is in an interface block, this is the type of the block.
2753 const struct glsl_type
*interface_type
;
2756 * For variables inside structs (possibly recursively), this is the
2757 * outermost struct type.
2759 const struct glsl_type
*outermost_struct_type
;
2762 * Declared name of the variable
2767 * Storage location of the base of this variable
2769 * The precise meaning of this field depends on the nature of the variable.
2771 * - Vertex shader input: one of the values from \c gl_vert_attrib.
2772 * - Vertex shader output: one of the values from \c gl_varying_slot.
2773 * - Geometry shader input: one of the values from \c gl_varying_slot.
2774 * - Geometry shader output: one of the values from \c gl_varying_slot.
2775 * - Fragment shader input: one of the values from \c gl_varying_slot.
2776 * - Fragment shader output: one of the values from \c gl_frag_result.
2777 * - Uniforms: Per-stage uniform slot number for default uniform block.
2778 * - Uniforms: Index within the uniform block definition for UBO members.
2779 * - Non-UBO Uniforms: explicit location until linking then reused to
2780 * store uniform slot number.
2781 * - Other: This field is not currently used.
2783 * If the variable is a uniform, shader input, or shader output, and the
2784 * slot has not been assigned, the value will be -1.
2789 * Specifies the first component the variable is stored in as per
2790 * ARB_enhanced_layouts.
2792 unsigned component
:2;
2795 * Output index for dual source blending.
2798 * The GLSL spec only allows the values 0 or 1 for the index in \b dual
2804 * Specifies whether a shader input/output is per-patch in tessellation
2810 * Storage class of the variable.
2812 * \sa (n)ir_variable_mode
2817 * Interpolation mode for shader inputs / outputs
2819 * \sa glsl_interp_mode
2821 unsigned interpolation
:2;
2824 * Was the location explicitly set in the shader?
2826 * If the location is explicitly set in the shader, it \b cannot be changed
2827 * by the linker or by the API (e.g., calls to \c glBindAttribLocation have
2830 unsigned explicit_location
:1;
2833 * Precision qualifier.
2835 unsigned precision
:2;
2839 * Active resource in a gl_shader_program
2841 struct gl_program_resource
2843 GLenum Type
; /** Program interface type. */
2844 const void *Data
; /** Pointer to resource associated data structure. */
2845 uint8_t StageReferences
; /** Bitmask of shader stage references. */
2849 * Link status enum. linking_skipped is used to indicate linking
2850 * was skipped due to the shader being loaded from the on-disk cache.
2854 linking_failure
= 0,
2860 * A data structure to be shared by gl_shader_program and gl_program.
2862 struct gl_shader_program_data
2864 GLint RefCount
; /**< Reference count */
2866 /** SHA1 hash of linked shader program */
2867 unsigned char sha1
[20];
2869 unsigned NumUniformStorage
;
2870 unsigned NumHiddenUniforms
;
2871 struct gl_uniform_storage
*UniformStorage
;
2873 unsigned NumUniformBlocks
;
2874 unsigned NumShaderStorageBlocks
;
2876 struct gl_uniform_block
*UniformBlocks
;
2877 struct gl_uniform_block
*ShaderStorageBlocks
;
2879 struct gl_active_atomic_buffer
*AtomicBuffers
;
2880 unsigned NumAtomicBuffers
;
2882 /* Shader cache variables used during restore */
2883 unsigned NumUniformDataSlots
;
2884 union gl_constant_value
*UniformDataSlots
;
2886 /* Used to hold initial uniform values for program binary restores.
2888 * From the ARB_get_program_binary spec:
2890 * "A successful call to ProgramBinary will reset all uniform
2891 * variables to their initial values. The initial value is either
2892 * the value of the variable's initializer as specified in the
2893 * original shader source, or 0 if no initializer was present.
2895 union gl_constant_value
*UniformDataDefaults
;
2897 GLboolean Validated
;
2899 /** List of all active resources after linking. */
2900 struct gl_program_resource
*ProgramResourceList
;
2901 unsigned NumProgramResourceList
;
2903 enum gl_link_status LinkStatus
; /**< GL_LINK_STATUS */
2906 unsigned Version
; /**< GLSL version used for linking */
2908 /* Mask of stages this program was linked against */
2909 unsigned linked_stages
;
2913 * A GLSL program object.
2914 * Basically a linked collection of vertex and fragment shaders.
2916 struct gl_shader_program
2918 GLenum Type
; /**< Always GL_SHADER_PROGRAM (internal token) */
2919 GLuint Name
; /**< aka handle or ID */
2920 GLchar
*Label
; /**< GL_KHR_debug */
2921 GLint RefCount
; /**< Reference count */
2922 GLboolean DeletePending
;
2925 * Is the application intending to glGetProgramBinary this program?
2927 GLboolean BinaryRetreivableHint
;
2930 * Indicates whether program can be bound for individual pipeline stages
2931 * using UseProgramStages after it is next linked.
2933 GLboolean SeparateShader
;
2935 GLuint NumShaders
; /**< number of attached shaders */
2936 struct gl_shader
**Shaders
; /**< List of attached the shaders */
2939 * User-defined attribute bindings
2941 * These are set via \c glBindAttribLocation and are used to direct the
2942 * GLSL linker. These are \b not the values used in the compiled shader,
2943 * and they are \b not the values returned by \c glGetAttribLocation.
2945 struct string_to_uint_map
*AttributeBindings
;
2948 * User-defined fragment data bindings
2950 * These are set via \c glBindFragDataLocation and are used to direct the
2951 * GLSL linker. These are \b not the values used in the compiled shader,
2952 * and they are \b not the values returned by \c glGetFragDataLocation.
2954 struct string_to_uint_map
*FragDataBindings
;
2955 struct string_to_uint_map
*FragDataIndexBindings
;
2958 * Transform feedback varyings last specified by
2959 * glTransformFeedbackVaryings().
2961 * For the current set of transform feedback varyings used for transform
2962 * feedback output, see LinkedTransformFeedback.
2966 /** Global xfb_stride out qualifier if any */
2967 GLuint BufferStride
[MAX_FEEDBACK_BUFFERS
];
2969 GLchar
**VaryingNames
; /**< Array [NumVarying] of char * */
2970 } TransformFeedback
;
2972 struct gl_program
*last_vert_prog
;
2974 /** Post-link gl_FragDepth layout for ARB_conservative_depth. */
2975 enum gl_frag_depth_layout FragDepthLayout
;
2978 * Geometry shader state - copied into gl_program by
2979 * _mesa_copy_linked_program_data().
2984 bool UsesEndPrimitive
;
2989 * Compute shader state - copied into gl_program by
2990 * _mesa_copy_linked_program_data().
2994 * Size of shared variables accessed by the compute shader.
2996 unsigned SharedSize
;
2999 /** Data shared by gl_program and gl_shader_program */
3000 struct gl_shader_program_data
*data
;
3003 * Mapping from GL uniform locations returned by \c glUniformLocation to
3004 * UniformStorage entries. Arrays will have multiple contiguous slots
3005 * in the UniformRemapTable, all pointing to the same UniformStorage entry.
3007 unsigned NumUniformRemapTable
;
3008 struct gl_uniform_storage
**UniformRemapTable
;
3011 * Sometimes there are empty slots left over in UniformRemapTable after we
3012 * allocate slots to explicit locations. This list stores the blocks of
3013 * continuous empty slots inside UniformRemapTable.
3015 struct exec_list EmptyUniformLocations
;
3018 * Total number of explicit uniform location including inactive uniforms.
3020 unsigned NumExplicitUniformLocations
;
3023 * Map of active uniform names to locations
3025 * Maps any active uniform that is not an array element to a location.
3026 * Each active uniform, including individual structure members will appear
3027 * in this map. This roughly corresponds to the set of names that would be
3028 * enumerated by \c glGetActiveUniform.
3030 struct string_to_uint_map
*UniformHash
;
3032 GLboolean SamplersValidated
; /**< Samplers validated against texture units? */
3034 bool IsES
; /**< True if this program uses GLSL ES */
3037 * Per-stage shaders resulting from the first stage of linking.
3039 * Set of linked shaders for this program. The array is accessed using the
3040 * \c MESA_SHADER_* defines. Entries for non-existent stages will be
3043 struct gl_linked_shader
*_LinkedShaders
[MESA_SHADER_STAGES
];
3045 /* True if any of the fragment shaders attached to this program use:
3046 * #extension ARB_fragment_coord_conventions: enable
3048 GLboolean ARB_fragment_coord_conventions_enable
;
3052 #define GLSL_DUMP 0x1 /**< Dump shaders to stdout */
3053 #define GLSL_LOG 0x2 /**< Write shaders to files */
3054 #define GLSL_UNIFORMS 0x4 /**< Print glUniform calls */
3055 #define GLSL_NOP_VERT 0x8 /**< Force no-op vertex shaders */
3056 #define GLSL_NOP_FRAG 0x10 /**< Force no-op fragment shaders */
3057 #define GLSL_USE_PROG 0x20 /**< Log glUseProgram calls */
3058 #define GLSL_REPORT_ERRORS 0x40 /**< Print compilation errors */
3059 #define GLSL_DUMP_ON_ERROR 0x80 /**< Dump shaders to stderr on compile error */
3060 #define GLSL_CACHE_INFO 0x100 /**< Print debug information about shader cache */
3061 #define GLSL_CACHE_FALLBACK 0x200 /**< Force shader cache fallback paths */
3065 * Context state for GLSL vertex/fragment shaders.
3066 * Extended to support pipeline object
3068 struct gl_pipeline_object
3070 /** Name of the pipeline object as received from glGenProgramPipelines.
3071 * It would be 0 for shaders without separate shader objects.
3077 GLchar
*Label
; /**< GL_KHR_debug */
3080 * Programs used for rendering
3082 * There is a separate program set for each shader stage.
3084 struct gl_program
*CurrentProgram
[MESA_SHADER_STAGES
];
3086 struct gl_shader_program
*ReferencedPrograms
[MESA_SHADER_STAGES
];
3089 * Program used by glUniform calls.
3091 * Explicitly set by \c glUseProgram and \c glActiveProgramEXT.
3093 struct gl_shader_program
*ActiveProgram
;
3095 GLbitfield Flags
; /**< Mask of GLSL_x flags */
3097 GLboolean EverBound
; /**< Has the pipeline object been created */
3099 GLboolean Validated
; /**< Pipeline Validation status */
3105 * Context state for GLSL pipeline shaders.
3107 struct gl_pipeline_shader_state
3109 /** Currently bound pipeline object. See _mesa_BindProgramPipeline() */
3110 struct gl_pipeline_object
*Current
;
3112 /* Default Object to ensure that _Shader is never NULL */
3113 struct gl_pipeline_object
*Default
;
3115 /** Pipeline objects */
3116 struct _mesa_HashTable
*Objects
;
3120 * Compiler options for a single GLSL shaders type
3122 struct gl_shader_compiler_options
3124 /** Driver-selectable options: */
3125 GLboolean EmitNoLoops
;
3126 GLboolean EmitNoCont
; /**< Emit CONT opcode? */
3127 GLboolean EmitNoMainReturn
; /**< Emit CONT/RET opcodes? */
3128 GLboolean EmitNoPow
; /**< Emit POW opcodes? */
3129 GLboolean EmitNoSat
; /**< Emit SAT opcodes? */
3130 GLboolean LowerCombinedClipCullDistance
; /** Lower gl_ClipDistance and
3131 * gl_CullDistance together from
3132 * float[8] to vec4[2]
3136 * \name Forms of indirect addressing the driver cannot do.
3139 GLboolean EmitNoIndirectInput
; /**< No indirect addressing of inputs */
3140 GLboolean EmitNoIndirectOutput
; /**< No indirect addressing of outputs */
3141 GLboolean EmitNoIndirectTemp
; /**< No indirect addressing of temps */
3142 GLboolean EmitNoIndirectUniform
; /**< No indirect addressing of constants */
3143 GLboolean EmitNoIndirectSampler
; /**< No indirect addressing of samplers */
3146 GLuint MaxIfDepth
; /**< Maximum nested IF blocks */
3147 GLuint MaxUnrollIterations
;
3150 * Optimize code for array of structures backends.
3152 * This is a proxy for:
3153 * - preferring DP4 instructions (rather than MUL/MAD) for
3154 * matrix * vector operations, such as position transformation.
3156 GLboolean OptimizeForAOS
;
3158 GLboolean LowerBufferInterfaceBlocks
; /**< Lower UBO and SSBO access to intrinsics. */
3160 /** Clamp UBO and SSBO block indices so they don't go out-of-bounds. */
3161 GLboolean ClampBlockIndicesToArrayBounds
;
3163 const struct nir_shader_compiler_options
*NirOptions
;
3168 * Occlusion/timer query object.
3170 struct gl_query_object
3172 GLenum Target
; /**< The query target, when active */
3173 GLuint Id
; /**< hash table ID/name */
3174 GLchar
*Label
; /**< GL_KHR_debug */
3175 GLuint64EXT Result
; /**< the counter */
3176 GLboolean Active
; /**< inside Begin/EndQuery */
3177 GLboolean Ready
; /**< result is ready? */
3178 GLboolean EverBound
;/**< has query object ever been bound */
3179 GLuint Stream
; /**< The stream */
3184 * Context state for query objects.
3186 struct gl_query_state
3188 struct _mesa_HashTable
*QueryObjects
;
3189 struct gl_query_object
*CurrentOcclusionObject
; /* GL_ARB_occlusion_query */
3190 struct gl_query_object
*CurrentTimerObject
; /* GL_EXT_timer_query */
3192 /** GL_NV_conditional_render */
3193 struct gl_query_object
*CondRenderQuery
;
3195 /** GL_EXT_transform_feedback */
3196 struct gl_query_object
*PrimitivesGenerated
[MAX_VERTEX_STREAMS
];
3197 struct gl_query_object
*PrimitivesWritten
[MAX_VERTEX_STREAMS
];
3199 /** GL_ARB_transform_feedback_overflow_query */
3200 struct gl_query_object
*TransformFeedbackOverflow
[MAX_VERTEX_STREAMS
];
3201 struct gl_query_object
*TransformFeedbackOverflowAny
;
3203 /** GL_ARB_timer_query */
3204 struct gl_query_object
*TimeElapsed
;
3206 /** GL_ARB_pipeline_statistics_query */
3207 struct gl_query_object
*pipeline_stats
[MAX_PIPELINE_STATISTICS
];
3209 GLenum CondRenderMode
;
3213 /** Sync object state */
3214 struct gl_sync_object
3216 GLuint Name
; /**< Fence name */
3217 GLint RefCount
; /**< Reference count */
3218 GLchar
*Label
; /**< GL_KHR_debug */
3219 GLboolean DeletePending
; /**< Object was deleted while there were still
3220 * live references (e.g., sync not yet finished)
3222 GLenum SyncCondition
;
3223 GLbitfield Flags
; /**< Flags passed to glFenceSync */
3224 GLuint StatusFlag
:1; /**< Has the sync object been signaled? */
3229 * State which can be shared by multiple contexts:
3231 struct gl_shared_state
3233 simple_mtx_t Mutex
; /**< for thread safety */
3234 GLint RefCount
; /**< Reference count */
3235 struct _mesa_HashTable
*DisplayList
; /**< Display lists hash table */
3236 struct _mesa_HashTable
*BitmapAtlas
; /**< For optimized glBitmap text */
3237 struct _mesa_HashTable
*TexObjects
; /**< Texture objects hash table */
3239 /** Default texture objects (shared by all texture units) */
3240 struct gl_texture_object
*DefaultTex
[NUM_TEXTURE_TARGETS
];
3242 /** Fallback texture used when a bound texture is incomplete */
3243 struct gl_texture_object
*FallbackTex
[NUM_TEXTURE_TARGETS
];
3246 * \name Thread safety and statechange notification for texture
3249 * \todo Improve the granularity of locking.
3252 mtx_t TexMutex
; /**< texobj thread safety */
3253 GLuint TextureStateStamp
; /**< state notification for shared tex */
3256 /** Default buffer object for vertex arrays that aren't in VBOs */
3257 struct gl_buffer_object
*NullBufferObj
;
3260 * \name Vertex/geometry/fragment programs
3263 struct _mesa_HashTable
*Programs
; /**< All vertex/fragment programs */
3264 struct gl_program
*DefaultVertexProgram
;
3265 struct gl_program
*DefaultFragmentProgram
;
3268 /* GL_ATI_fragment_shader */
3269 struct _mesa_HashTable
*ATIShaders
;
3270 struct ati_fragment_shader
*DefaultFragmentShader
;
3272 struct _mesa_HashTable
*BufferObjects
;
3274 /** Table of both gl_shader and gl_shader_program objects */
3275 struct _mesa_HashTable
*ShaderObjects
;
3277 /* GL_EXT_framebuffer_object */
3278 struct _mesa_HashTable
*RenderBuffers
;
3279 struct _mesa_HashTable
*FrameBuffers
;
3282 struct set
*SyncObjects
;
3284 /** GL_ARB_sampler_objects */
3285 struct _mesa_HashTable
*SamplerObjects
;
3287 /* GL_ARB_bindless_texture */
3288 struct hash_table_u64
*TextureHandles
;
3289 struct hash_table_u64
*ImageHandles
;
3290 mtx_t HandlesMutex
; /**< For texture/image handles safety */
3293 * Some context in this share group was affected by a GPU reset
3295 * On the next call to \c glGetGraphicsResetStatus, contexts that have not
3296 * been affected by a GPU reset must also return
3297 * \c GL_INNOCENT_CONTEXT_RESET_ARB.
3299 * Once this field becomes true, it is never reset to false.
3301 bool ShareGroupReset
;
3303 /** EXT_external_objects */
3304 struct _mesa_HashTable
*MemoryObjects
;
3307 * Some context in this share group was affected by a disjoint
3308 * operation. This operation can be anything that has effects on
3309 * values of timer queries in such manner that they become invalid for
3310 * performance metrics. As example gpu reset, counter overflow or gpu
3311 * frequency changes.
3313 bool DisjointOperation
;
3319 * Renderbuffers represent drawing surfaces such as color, depth and/or
3320 * stencil. A framebuffer object has a set of renderbuffers.
3321 * Drivers will typically derive subclasses of this type.
3323 struct gl_renderbuffer
3325 simple_mtx_t Mutex
; /**< for thread safety */
3326 GLuint ClassID
; /**< Useful for drivers */
3328 GLchar
*Label
; /**< GL_KHR_debug */
3330 GLuint Width
, Height
;
3332 GLboolean Purgeable
; /**< Is the buffer purgeable under memory pressure? */
3333 GLboolean AttachedAnytime
; /**< TRUE if it was attached to a framebuffer */
3335 * True for renderbuffers that wrap textures, giving the driver a chance to
3336 * flush render caches through the FinishRenderTexture hook.
3338 * Drivers may also set this on renderbuffers other than those generated by
3339 * glFramebufferTexture(), though it means FinishRenderTexture() would be
3340 * called without a rb->TexImage.
3342 GLboolean NeedsFinishRenderTexture
;
3343 GLubyte NumSamples
; /**< zero means not multisampled */
3344 GLenum InternalFormat
; /**< The user-specified format */
3345 GLenum _BaseFormat
; /**< Either GL_RGB, GL_RGBA, GL_DEPTH_COMPONENT or
3346 GL_STENCIL_INDEX. */
3347 mesa_format Format
; /**< The actual renderbuffer memory format */
3349 * Pointer to the texture image if this renderbuffer wraps a texture,
3352 * Note that the reference on the gl_texture_object containing this
3353 * TexImage is held by the gl_renderbuffer_attachment.
3355 struct gl_texture_image
*TexImage
;
3357 /** Delete this renderbuffer */
3358 void (*Delete
)(struct gl_context
*ctx
, struct gl_renderbuffer
*rb
);
3360 /** Allocate new storage for this renderbuffer */
3361 GLboolean (*AllocStorage
)(struct gl_context
*ctx
,
3362 struct gl_renderbuffer
*rb
,
3363 GLenum internalFormat
,
3364 GLuint width
, GLuint height
);
3369 * A renderbuffer attachment points to either a texture object (and specifies
3370 * a mipmap level, cube face or 3D texture slice) or points to a renderbuffer.
3372 struct gl_renderbuffer_attachment
3374 GLenum Type
; /**< \c GL_NONE or \c GL_TEXTURE or \c GL_RENDERBUFFER_EXT */
3378 * If \c Type is \c GL_RENDERBUFFER_EXT, this stores a pointer to the
3379 * application supplied renderbuffer object.
3381 struct gl_renderbuffer
*Renderbuffer
;
3384 * If \c Type is \c GL_TEXTURE, this stores a pointer to the application
3385 * supplied texture object.
3387 struct gl_texture_object
*Texture
;
3388 GLuint TextureLevel
; /**< Attached mipmap level. */
3389 GLuint CubeMapFace
; /**< 0 .. 5, for cube map textures. */
3390 GLuint Zoffset
; /**< Slice for 3D textures, or layer for both 1D
3391 * and 2D array textures */
3397 * A framebuffer is a collection of renderbuffers (color, depth, stencil, etc).
3398 * In C++ terms, think of this as a base class from which device drivers
3399 * will make derived classes.
3401 struct gl_framebuffer
3403 simple_mtx_t Mutex
; /**< for thread safety */
3405 * If zero, this is a window system framebuffer. If non-zero, this
3406 * is a FBO framebuffer; note that for some devices (i.e. those with
3407 * a natural pixel coordinate system for FBOs that differs from the
3408 * OpenGL/Mesa coordinate system), this means that the viewport,
3409 * polygon face orientation, and polygon stipple will have to be inverted.
3414 GLchar
*Label
; /**< GL_KHR_debug */
3416 GLboolean DeletePending
;
3419 * The framebuffer's visual. Immutable if this is a window system buffer.
3420 * Computed from attachments if user-made FBO.
3422 struct gl_config Visual
;
3425 * Size of frame buffer in pixels. If there are no attachments, then both
3428 GLuint Width
, Height
;
3431 * In the case that the framebuffer has no attachment (i.e.
3432 * GL_ARB_framebuffer_no_attachments) then the geometry of
3433 * the framebuffer is specified by the default values.
3436 GLuint Width
, Height
, Layers
, NumSamples
;
3437 GLboolean FixedSampleLocations
;
3438 /* Derived from NumSamples by the driver so that it can choose a valid
3439 * value for the hardware.
3444 /** \name Drawing bounds (Intersection of buffer size and scissor box)
3445 * The drawing region is given by [_Xmin, _Xmax) x [_Ymin, _Ymax),
3446 * (inclusive for _Xmin and _Ymin while exclusive for _Xmax and _Ymax)
3453 /** \name Derived Z buffer stuff */
3455 GLuint _DepthMax
; /**< Max depth buffer value */
3456 GLfloat _DepthMaxF
; /**< Float max depth buffer value */
3457 GLfloat _MRD
; /**< minimum resolvable difference in Z values */
3460 /** One of the GL_FRAMEBUFFER_(IN)COMPLETE_* tokens */
3463 /** Whether one of Attachment has Type != GL_NONE
3464 * NOTE: the values for Width and Height are set to 0 in case of having
3465 * no attachments, a backend driver supporting the extension
3466 * GL_ARB_framebuffer_no_attachments must check for the flag _HasAttachments
3467 * and if GL_FALSE, must then use the values in DefaultGeometry to initialize
3468 * its viewport, scissor and so on (in particular _Xmin, _Xmax, _Ymin and
3469 * _Ymax do NOT take into account _HasAttachments being false). To get the
3470 * geometry of the framebuffer, the helper functions
3471 * _mesa_geometric_width(),
3472 * _mesa_geometric_height(),
3473 * _mesa_geometric_samples() and
3474 * _mesa_geometric_layers()
3475 * are available that check _HasAttachments.
3477 bool _HasAttachments
;
3479 GLbitfield _IntegerBuffers
; /**< Which color buffers are integer valued */
3481 /* ARB_color_buffer_float */
3482 GLboolean _AllColorBuffersFixedPoint
; /* no integer, no float */
3483 GLboolean _HasSNormOrFloatColorBuffer
;
3486 * The maximum number of layers in the framebuffer, or 0 if the framebuffer
3487 * is not layered. For cube maps and cube map arrays, each cube face
3488 * counts as a layer. As the case for Width, Height a backend driver
3489 * supporting GL_ARB_framebuffer_no_attachments must use DefaultGeometry
3490 * in the case that _HasAttachments is false
3492 GLuint MaxNumLayers
;
3494 /** Array of all renderbuffer attachments, indexed by BUFFER_* tokens. */
3495 struct gl_renderbuffer_attachment Attachment
[BUFFER_COUNT
];
3497 /* In unextended OpenGL these vars are part of the GL_COLOR_BUFFER
3498 * attribute group and GL_PIXEL attribute group, respectively.
3500 GLenum ColorDrawBuffer
[MAX_DRAW_BUFFERS
];
3501 GLenum ColorReadBuffer
;
3503 /** Computed from ColorDraw/ReadBuffer above */
3504 GLuint _NumColorDrawBuffers
;
3505 gl_buffer_index _ColorDrawBufferIndexes
[MAX_DRAW_BUFFERS
];
3506 gl_buffer_index _ColorReadBufferIndex
;
3507 struct gl_renderbuffer
*_ColorDrawBuffers
[MAX_DRAW_BUFFERS
];
3508 struct gl_renderbuffer
*_ColorReadBuffer
;
3510 /** Delete this framebuffer */
3511 void (*Delete
)(struct gl_framebuffer
*fb
);
3516 * Precision info for shader datatypes. See glGetShaderPrecisionFormat().
3520 GLushort RangeMin
; /**< min value exponent */
3521 GLushort RangeMax
; /**< max value exponent */
3522 GLushort Precision
; /**< number of mantissa bits */
3527 * Limits for vertex, geometry and fragment programs/shaders.
3529 struct gl_program_constants
3531 /* logical limits */
3532 GLuint MaxInstructions
;
3533 GLuint MaxAluInstructions
;
3534 GLuint MaxTexInstructions
;
3535 GLuint MaxTexIndirections
;
3538 GLuint MaxAddressRegs
;
3539 GLuint MaxAddressOffset
; /**< [-MaxAddressOffset, MaxAddressOffset-1] */
3540 GLuint MaxParameters
;
3541 GLuint MaxLocalParams
;
3542 GLuint MaxEnvParams
;
3543 /* native/hardware limits */
3544 GLuint MaxNativeInstructions
;
3545 GLuint MaxNativeAluInstructions
;
3546 GLuint MaxNativeTexInstructions
;
3547 GLuint MaxNativeTexIndirections
;
3548 GLuint MaxNativeAttribs
;
3549 GLuint MaxNativeTemps
;
3550 GLuint MaxNativeAddressRegs
;
3551 GLuint MaxNativeParameters
;
3553 GLuint MaxUniformComponents
; /**< Usually == MaxParameters * 4 */
3556 * \name Per-stage input / output limits
3558 * Previous to OpenGL 3.2, the intrastage data limits were advertised with
3559 * a single value: GL_MAX_VARYING_COMPONENTS (GL_MAX_VARYING_VECTORS in
3560 * ES). This is stored as \c gl_constants::MaxVarying.
3562 * Starting with OpenGL 3.2, the limits are advertised with per-stage
3563 * variables. Each stage as a certain number of outputs that it can feed
3564 * to the next stage and a certain number inputs that it can consume from
3565 * the previous stage.
3567 * Vertex shader inputs do not participate this in this accounting.
3568 * These are tracked exclusively by \c gl_program_constants::MaxAttribs.
3570 * Fragment shader outputs do not participate this in this accounting.
3571 * These are tracked exclusively by \c gl_constants::MaxDrawBuffers.
3574 GLuint MaxInputComponents
;
3575 GLuint MaxOutputComponents
;
3578 /* ES 2.0 and GL_ARB_ES2_compatibility */
3579 struct gl_precision LowFloat
, MediumFloat
, HighFloat
;
3580 struct gl_precision LowInt
, MediumInt
, HighInt
;
3581 /* GL_ARB_uniform_buffer_object */
3582 GLuint MaxUniformBlocks
;
3583 GLuint MaxCombinedUniformComponents
;
3584 GLuint MaxTextureImageUnits
;
3586 /* GL_ARB_shader_atomic_counters */
3587 GLuint MaxAtomicBuffers
;
3588 GLuint MaxAtomicCounters
;
3590 /* GL_ARB_shader_image_load_store */
3591 GLuint MaxImageUniforms
;
3593 /* GL_ARB_shader_storage_buffer_object */
3594 GLuint MaxShaderStorageBlocks
;
3598 * Constants which may be overridden by device driver during context creation
3599 * but are never changed after that.
3603 GLuint MaxTextureMbytes
; /**< Max memory per image, in MB */
3604 GLuint MaxTextureLevels
; /**< Max mipmap levels. */
3605 GLuint Max3DTextureLevels
; /**< Max mipmap levels for 3D textures */
3606 GLuint MaxCubeTextureLevels
; /**< Max mipmap levels for cube textures */
3607 GLuint MaxArrayTextureLayers
; /**< Max layers in array textures */
3608 GLuint MaxTextureRectSize
; /**< Max rectangle texture size, in pixes */
3609 GLuint MaxTextureCoordUnits
;
3610 GLuint MaxCombinedTextureImageUnits
;
3611 GLuint MaxTextureUnits
; /**< = MIN(CoordUnits, FragmentProgram.ImageUnits) */
3612 GLfloat MaxTextureMaxAnisotropy
; /**< GL_EXT_texture_filter_anisotropic */
3613 GLfloat MaxTextureLodBias
; /**< GL_EXT_texture_lod_bias */
3614 GLuint MaxTextureBufferSize
; /**< GL_ARB_texture_buffer_object */
3616 GLuint TextureBufferOffsetAlignment
; /**< GL_ARB_texture_buffer_range */
3618 GLuint MaxArrayLockSize
;
3622 GLfloat MinPointSize
, MaxPointSize
; /**< aliased */
3623 GLfloat MinPointSizeAA
, MaxPointSizeAA
; /**< antialiased */
3624 GLfloat PointSizeGranularity
;
3625 GLfloat MinLineWidth
, MaxLineWidth
; /**< aliased */
3626 GLfloat MinLineWidthAA
, MaxLineWidthAA
; /**< antialiased */
3627 GLfloat LineWidthGranularity
;
3629 GLuint MaxClipPlanes
;
3631 GLfloat MaxShininess
; /**< GL_NV_light_max_exponent */
3632 GLfloat MaxSpotExponent
; /**< GL_NV_light_max_exponent */
3634 GLuint MaxViewportWidth
, MaxViewportHeight
;
3635 GLuint MaxViewports
; /**< GL_ARB_viewport_array */
3636 GLuint ViewportSubpixelBits
; /**< GL_ARB_viewport_array */
3640 } ViewportBounds
; /**< GL_ARB_viewport_array */
3641 GLuint MaxWindowRectangles
; /**< GL_EXT_window_rectangles */
3643 struct gl_program_constants Program
[MESA_SHADER_STAGES
];
3644 GLuint MaxProgramMatrices
;
3645 GLuint MaxProgramMatrixStackDepth
;
3648 GLuint SamplesPassed
;
3651 GLuint PrimitivesGenerated
;
3652 GLuint PrimitivesWritten
;
3653 GLuint VerticesSubmitted
;
3654 GLuint PrimitivesSubmitted
;
3655 GLuint VsInvocations
;
3657 GLuint TessInvocations
;
3658 GLuint GsInvocations
;
3659 GLuint GsPrimitives
;
3660 GLuint FsInvocations
;
3661 GLuint ComputeInvocations
;
3662 GLuint ClInPrimitives
;
3663 GLuint ClOutPrimitives
;
3666 GLuint MaxDrawBuffers
; /**< GL_ARB_draw_buffers */
3668 GLuint MaxColorAttachments
; /**< GL_EXT_framebuffer_object */
3669 GLuint MaxRenderbufferSize
; /**< GL_EXT_framebuffer_object */
3670 GLuint MaxSamples
; /**< GL_ARB_framebuffer_object */
3673 * GL_ARB_framebuffer_no_attachments
3675 GLuint MaxFramebufferWidth
;
3676 GLuint MaxFramebufferHeight
;
3677 GLuint MaxFramebufferLayers
;
3678 GLuint MaxFramebufferSamples
;
3680 /** Number of varying vectors between any two shader stages. */
3684 * GL_ARB_uniform_buffer_object
3686 GLuint MaxCombinedUniformBlocks
;
3687 GLuint MaxUniformBufferBindings
;
3688 GLuint MaxUniformBlockSize
;
3689 GLuint UniformBufferOffsetAlignment
;
3693 * GL_ARB_shader_storage_buffer_object
3695 GLuint MaxCombinedShaderStorageBlocks
;
3696 GLuint MaxShaderStorageBufferBindings
;
3697 GLuint MaxShaderStorageBlockSize
;
3698 GLuint ShaderStorageBufferOffsetAlignment
;
3702 * GL_ARB_explicit_uniform_location
3704 GLuint MaxUserAssignableUniformLocations
;
3706 /** geometry shader */
3707 GLuint MaxGeometryOutputVertices
;
3708 GLuint MaxGeometryTotalOutputComponents
;
3710 GLuint GLSLVersion
; /**< Desktop GLSL version supported (ex: 120 = 1.20) */
3713 * Changes default GLSL extension behavior from "error" to "warn". It's out
3714 * of spec, but it can make some apps work that otherwise wouldn't.
3716 GLboolean ForceGLSLExtensionsWarn
;
3719 * If non-zero, forces GLSL shaders to behave as if they began
3720 * with "#version ForceGLSLVersion".
3722 GLuint ForceGLSLVersion
;
3725 * Allow GLSL #extension directives in the middle of shaders.
3727 GLboolean AllowGLSLExtensionDirectiveMidShader
;
3730 * Allow GLSL built-in variables to be redeclared verbatim
3732 GLboolean AllowGLSLBuiltinVariableRedeclaration
;
3735 * Allow GLSL interpolation qualifier mismatch across shader stages.
3737 GLboolean AllowGLSLCrossStageInterpolationMismatch
;
3740 * Allow creating a higher compat profile (version 3.1+) for apps that
3741 * request it. Be careful when adding that driconf option because some
3742 * features are unimplemented and might not work correctly.
3744 GLboolean AllowHigherCompatVersion
;
3747 * Force computing the absolute value for sqrt() and inversesqrt() to follow
3748 * D3D9 when apps rely on this behaviour.
3750 GLboolean ForceGLSLAbsSqrt
;
3753 * Force uninitialized variables to default to zero.
3755 GLboolean GLSLZeroInit
;
3758 * Does the driver support real 32-bit integers? (Otherwise, integers are
3759 * simulated via floats.)
3761 GLboolean NativeIntegers
;
3764 * Does VertexID count from zero or from base vertex?
3767 * If desktop GLSL 1.30 or GLSL ES 3.00 are not supported, this field is
3768 * ignored and need not be set.
3770 bool VertexID_is_zero_based
;
3773 * If the driver supports real 32-bit integers, what integer value should be
3774 * used for boolean true in uniform uploads? (Usually 1 or ~0.)
3776 GLuint UniformBooleanTrue
;
3779 * Maximum amount of time, measured in nanseconds, that the server can wait.
3781 GLuint64 MaxServerWaitTimeout
;
3783 /** GL_EXT_provoking_vertex */
3784 GLboolean QuadsFollowProvokingVertexConvention
;
3786 /** GL_ARB_viewport_array */
3787 GLenum LayerAndVPIndexProvokingVertex
;
3789 /** OpenGL version 3.0 */
3790 GLbitfield ContextFlags
; /**< Ex: GL_CONTEXT_FLAG_FORWARD_COMPATIBLE_BIT */
3792 /** OpenGL version 3.2 */
3793 GLbitfield ProfileMask
; /**< Mask of CONTEXT_x_PROFILE_BIT */
3795 /** OpenGL version 4.4 */
3796 GLuint MaxVertexAttribStride
;
3798 /** GL_EXT_transform_feedback */
3799 GLuint MaxTransformFeedbackBuffers
;
3800 GLuint MaxTransformFeedbackSeparateComponents
;
3801 GLuint MaxTransformFeedbackInterleavedComponents
;
3802 GLuint MaxVertexStreams
;
3804 /** GL_EXT_gpu_shader4 */
3805 GLint MinProgramTexelOffset
, MaxProgramTexelOffset
;
3807 /** GL_ARB_texture_gather */
3808 GLuint MinProgramTextureGatherOffset
;
3809 GLuint MaxProgramTextureGatherOffset
;
3810 GLuint MaxProgramTextureGatherComponents
;
3812 /* GL_ARB_robustness */
3813 GLenum ResetStrategy
;
3815 /* GL_KHR_robustness */
3816 GLboolean RobustAccess
;
3818 /* GL_ARB_blend_func_extended */
3819 GLuint MaxDualSourceDrawBuffers
;
3822 * Whether the implementation strips out and ignores texture borders.
3824 * Many GPU hardware implementations don't support rendering with texture
3825 * borders and mipmapped textures. (Note: not static border color, but the
3826 * old 1-pixel border around each edge). Implementations then have to do
3827 * slow fallbacks to be correct, or just ignore the border and be fast but
3828 * wrong. Setting the flag strips the border off of TexImage calls,
3829 * providing "fast but wrong" at significantly reduced driver complexity.
3831 * Texture borders are deprecated in GL 3.0.
3833 GLboolean StripTextureBorder
;
3836 * For drivers which can do a better job at eliminating unused uniforms
3837 * than the GLSL compiler.
3839 * XXX Remove these as soon as a better solution is available.
3841 GLboolean GLSLSkipStrictMaxUniformLimitCheck
;
3843 /** Whether gl_FragCoord and gl_FrontFacing are system values. */
3844 bool GLSLFragCoordIsSysVal
;
3845 bool GLSLFrontFacingIsSysVal
;
3848 * Run the minimum amount of GLSL optimizations to be able to link
3849 * shaders optimally (eliminate dead varyings and uniforms) and just do
3850 * all the necessary lowering.
3852 bool GLSLOptimizeConservatively
;
3855 * True if gl_TessLevelInner/Outer[] in the TES should be inputs
3856 * (otherwise, they're system values).
3858 bool GLSLTessLevelsAsInputs
;
3861 * Always use the GetTransformFeedbackVertexCount() driver hook, rather
3862 * than passing the transform feedback object to the drawing function.
3864 GLboolean AlwaysUseGetTransformFeedbackVertexCount
;
3866 /** GL_ARB_map_buffer_alignment */
3867 GLuint MinMapBufferAlignment
;
3870 * Disable varying packing. This is out of spec, but potentially useful
3871 * for older platforms that supports a limited number of texture
3872 * indirections--on these platforms, unpacking the varyings in the fragment
3873 * shader increases the number of texture indirections by 1, which might
3874 * make some shaders not executable at all.
3876 * Drivers that support transform feedback must set this value to GL_FALSE.
3878 GLboolean DisableVaryingPacking
;
3881 * UBOs and SSBOs can be packed tightly by the OpenGL implementation when
3882 * layout is set as shared (the default) or packed. However most Mesa drivers
3883 * just use STD140 for these layouts. This flag allows drivers to use STD430
3884 * for packed and shared layouts which allows arrays to be packed more
3887 bool UseSTD430AsDefaultPacking
;
3890 * Should meaningful names be generated for compiler temporary variables?
3892 * Generally, it is not useful to have the compiler generate "meaningful"
3893 * names for temporary variables that it creates. This can, however, be a
3894 * useful debugging aid. In Mesa debug builds or release builds when
3895 * MESA_GLSL is set at run-time, meaningful names will be generated.
3896 * Drivers can also force names to be generated by setting this field.
3897 * For example, the i965 driver may set it when INTEL_DEBUG=vs (to dump
3898 * vertex shader assembly) is set at run-time.
3900 bool GenerateTemporaryNames
;
3903 * Maximum value supported for an index in DrawElements and friends.
3905 * This must be at least (1ull<<24)-1. The default value is
3908 * \since ES 3.0 or GL_ARB_ES3_compatibility
3909 * \sa _mesa_init_constants
3911 GLuint64 MaxElementIndex
;
3914 * Disable interpretation of line continuations (lines ending with a
3915 * backslash character ('\') in GLSL source.
3917 GLboolean DisableGLSLLineContinuations
;
3919 /** GL_ARB_texture_multisample */
3920 GLint MaxColorTextureSamples
;
3921 GLint MaxDepthTextureSamples
;
3922 GLint MaxIntegerSamples
;
3925 * GL_EXT_texture_multisample_blit_scaled implementation assumes that
3926 * samples are laid out in a rectangular grid roughly corresponding to
3927 * sample locations within a pixel. Below SampleMap{2,4,8}x variables
3928 * are used to map indices of rectangular grid to sample numbers within
3929 * a pixel. This mapping of indices to sample numbers must be initialized
3930 * by the driver for the target hardware. For example, if we have the 8X
3931 * MSAA sample number layout (sample positions) for XYZ hardware:
3933 * sample indices layout sample number layout
3934 * --------- ---------
3935 * | 0 | 1 | | a | b |
3936 * --------- ---------
3937 * | 2 | 3 | | c | d |
3938 * --------- ---------
3939 * | 4 | 5 | | e | f |
3940 * --------- ---------
3941 * | 6 | 7 | | g | h |
3942 * --------- ---------
3944 * Where a,b,c,d,e,f,g,h are integers between [0-7].
3946 * Then, initialize the SampleMap8x variable for XYZ hardware as shown
3948 * SampleMap8x = {a, b, c, d, e, f, g, h};
3950 * Follow the logic for sample counts 2-8.
3952 * For 16x the sample indices layout as a 4x4 grid as follows:
3964 uint8_t SampleMap2x
[2];
3965 uint8_t SampleMap4x
[4];
3966 uint8_t SampleMap8x
[8];
3967 uint8_t SampleMap16x
[16];
3969 /** GL_ARB_shader_atomic_counters */
3970 GLuint MaxAtomicBufferBindings
;
3971 GLuint MaxAtomicBufferSize
;
3972 GLuint MaxCombinedAtomicBuffers
;
3973 GLuint MaxCombinedAtomicCounters
;
3975 /** GL_ARB_vertex_attrib_binding */
3976 GLint MaxVertexAttribRelativeOffset
;
3977 GLint MaxVertexAttribBindings
;
3979 /* GL_ARB_shader_image_load_store */
3980 GLuint MaxImageUnits
;
3981 GLuint MaxCombinedShaderOutputResources
;
3982 GLuint MaxImageSamples
;
3983 GLuint MaxCombinedImageUniforms
;
3985 /** GL_ARB_compute_shader */
3986 GLuint MaxComputeWorkGroupCount
[3]; /* Array of x, y, z dimensions */
3987 GLuint MaxComputeWorkGroupSize
[3]; /* Array of x, y, z dimensions */
3988 GLuint MaxComputeWorkGroupInvocations
;
3989 GLuint MaxComputeSharedMemorySize
;
3991 /** GL_ARB_compute_variable_group_size */
3992 GLuint MaxComputeVariableGroupSize
[3]; /* Array of x, y, z dimensions */
3993 GLuint MaxComputeVariableGroupInvocations
;
3995 /** GL_ARB_gpu_shader5 */
3996 GLfloat MinFragmentInterpolationOffset
;
3997 GLfloat MaxFragmentInterpolationOffset
;
3999 GLboolean FakeSWMSAA
;
4001 /** GL_KHR_context_flush_control */
4002 GLenum ContextReleaseBehavior
;
4004 struct gl_shader_compiler_options ShaderCompilerOptions
[MESA_SHADER_STAGES
];
4006 /** GL_ARB_tessellation_shader */
4007 GLuint MaxPatchVertices
;
4008 GLuint MaxTessGenLevel
;
4009 GLuint MaxTessPatchComponents
;
4010 GLuint MaxTessControlTotalOutputComponents
;
4011 bool LowerTessLevel
; /**< Lower gl_TessLevel* from float[n] to vecn? */
4012 bool PrimitiveRestartForPatches
;
4013 bool LowerCsDerivedVariables
; /**< Lower gl_GlobalInvocationID and
4014 * gl_LocalInvocationIndex based on
4015 * other builtin variables. */
4017 /** GL_OES_primitive_bounding_box */
4018 bool NoPrimitiveBoundingBoxOutput
;
4020 /** GL_ARB_sparse_buffer */
4021 GLuint SparseBufferPageSize
;
4023 /** Used as an input for sha1 generation in the on-disk shader cache */
4024 unsigned char *dri_config_options_sha1
;
4026 /** When drivers are OK with mapped buffers during draw and other calls. */
4027 bool AllowMappedBuffersDuringExecution
;
4029 /** GL_ARB_get_program_binary */
4030 GLuint NumProgramBinaryFormats
;
4035 * Enable flag for each OpenGL extension. Different device drivers will
4036 * enable different extensions at runtime.
4038 struct gl_extensions
4040 GLboolean dummy
; /* don't remove this! */
4041 GLboolean dummy_true
; /* Set true by _mesa_init_extensions(). */
4042 GLboolean dummy_false
; /* Set false by _mesa_init_extensions(). */
4043 GLboolean ANGLE_texture_compression_dxt
;
4044 GLboolean ARB_ES2_compatibility
;
4045 GLboolean ARB_ES3_compatibility
;
4046 GLboolean ARB_ES3_1_compatibility
;
4047 GLboolean ARB_ES3_2_compatibility
;
4048 GLboolean ARB_arrays_of_arrays
;
4049 GLboolean ARB_base_instance
;
4050 GLboolean ARB_bindless_texture
;
4051 GLboolean ARB_blend_func_extended
;
4052 GLboolean ARB_buffer_storage
;
4053 GLboolean ARB_clear_texture
;
4054 GLboolean ARB_clip_control
;
4055 GLboolean ARB_color_buffer_float
;
4056 GLboolean ARB_compute_shader
;
4057 GLboolean ARB_compute_variable_group_size
;
4058 GLboolean ARB_conditional_render_inverted
;
4059 GLboolean ARB_conservative_depth
;
4060 GLboolean ARB_copy_image
;
4061 GLboolean ARB_cull_distance
;
4062 GLboolean ARB_depth_buffer_float
;
4063 GLboolean ARB_depth_clamp
;
4064 GLboolean ARB_depth_texture
;
4065 GLboolean ARB_derivative_control
;
4066 GLboolean ARB_draw_buffers_blend
;
4067 GLboolean ARB_draw_elements_base_vertex
;
4068 GLboolean ARB_draw_indirect
;
4069 GLboolean ARB_draw_instanced
;
4070 GLboolean ARB_fragment_coord_conventions
;
4071 GLboolean ARB_fragment_layer_viewport
;
4072 GLboolean ARB_fragment_program
;
4073 GLboolean ARB_fragment_program_shadow
;
4074 GLboolean ARB_fragment_shader
;
4075 GLboolean ARB_framebuffer_no_attachments
;
4076 GLboolean ARB_framebuffer_object
;
4077 GLboolean ARB_enhanced_layouts
;
4078 GLboolean ARB_explicit_attrib_location
;
4079 GLboolean ARB_explicit_uniform_location
;
4080 GLboolean ARB_gl_spirv
;
4081 GLboolean ARB_gpu_shader5
;
4082 GLboolean ARB_gpu_shader_fp64
;
4083 GLboolean ARB_gpu_shader_int64
;
4084 GLboolean ARB_half_float_vertex
;
4085 GLboolean ARB_indirect_parameters
;
4086 GLboolean ARB_instanced_arrays
;
4087 GLboolean ARB_internalformat_query
;
4088 GLboolean ARB_internalformat_query2
;
4089 GLboolean ARB_map_buffer_range
;
4090 GLboolean ARB_occlusion_query
;
4091 GLboolean ARB_occlusion_query2
;
4092 GLboolean ARB_pipeline_statistics_query
;
4093 GLboolean ARB_point_sprite
;
4094 GLboolean ARB_polygon_offset_clamp
;
4095 GLboolean ARB_post_depth_coverage
;
4096 GLboolean ARB_query_buffer_object
;
4097 GLboolean ARB_robust_buffer_access_behavior
;
4098 GLboolean ARB_sample_shading
;
4099 GLboolean ARB_seamless_cube_map
;
4100 GLboolean ARB_shader_atomic_counter_ops
;
4101 GLboolean ARB_shader_atomic_counters
;
4102 GLboolean ARB_shader_ballot
;
4103 GLboolean ARB_shader_bit_encoding
;
4104 GLboolean ARB_shader_clock
;
4105 GLboolean ARB_shader_draw_parameters
;
4106 GLboolean ARB_shader_group_vote
;
4107 GLboolean ARB_shader_image_load_store
;
4108 GLboolean ARB_shader_image_size
;
4109 GLboolean ARB_shader_precision
;
4110 GLboolean ARB_shader_stencil_export
;
4111 GLboolean ARB_shader_storage_buffer_object
;
4112 GLboolean ARB_shader_texture_image_samples
;
4113 GLboolean ARB_shader_texture_lod
;
4114 GLboolean ARB_shader_viewport_layer_array
;
4115 GLboolean ARB_shading_language_packing
;
4116 GLboolean ARB_shading_language_420pack
;
4117 GLboolean ARB_shadow
;
4118 GLboolean ARB_sparse_buffer
;
4119 GLboolean ARB_stencil_texturing
;
4121 GLboolean ARB_tessellation_shader
;
4122 GLboolean ARB_texture_border_clamp
;
4123 GLboolean ARB_texture_buffer_object
;
4124 GLboolean ARB_texture_buffer_object_rgb32
;
4125 GLboolean ARB_texture_buffer_range
;
4126 GLboolean ARB_texture_compression_bptc
;
4127 GLboolean ARB_texture_compression_rgtc
;
4128 GLboolean ARB_texture_cube_map
;
4129 GLboolean ARB_texture_cube_map_array
;
4130 GLboolean ARB_texture_env_combine
;
4131 GLboolean ARB_texture_env_crossbar
;
4132 GLboolean ARB_texture_env_dot3
;
4133 GLboolean ARB_texture_filter_anisotropic
;
4134 GLboolean ARB_texture_float
;
4135 GLboolean ARB_texture_gather
;
4136 GLboolean ARB_texture_mirror_clamp_to_edge
;
4137 GLboolean ARB_texture_multisample
;
4138 GLboolean ARB_texture_non_power_of_two
;
4139 GLboolean ARB_texture_stencil8
;
4140 GLboolean ARB_texture_query_levels
;
4141 GLboolean ARB_texture_query_lod
;
4142 GLboolean ARB_texture_rg
;
4143 GLboolean ARB_texture_rgb10_a2ui
;
4144 GLboolean ARB_texture_view
;
4145 GLboolean ARB_timer_query
;
4146 GLboolean ARB_transform_feedback2
;
4147 GLboolean ARB_transform_feedback3
;
4148 GLboolean ARB_transform_feedback_instanced
;
4149 GLboolean ARB_transform_feedback_overflow_query
;
4150 GLboolean ARB_uniform_buffer_object
;
4151 GLboolean ARB_vertex_attrib_64bit
;
4152 GLboolean ARB_vertex_program
;
4153 GLboolean ARB_vertex_shader
;
4154 GLboolean ARB_vertex_type_10f_11f_11f_rev
;
4155 GLboolean ARB_vertex_type_2_10_10_10_rev
;
4156 GLboolean ARB_viewport_array
;
4157 GLboolean EXT_blend_color
;
4158 GLboolean EXT_blend_equation_separate
;
4159 GLboolean EXT_blend_func_separate
;
4160 GLboolean EXT_blend_minmax
;
4161 GLboolean EXT_depth_bounds_test
;
4162 GLboolean EXT_disjoint_timer_query
;
4163 GLboolean EXT_draw_buffers2
;
4164 GLboolean EXT_framebuffer_multisample
;
4165 GLboolean EXT_framebuffer_multisample_blit_scaled
;
4166 GLboolean EXT_framebuffer_sRGB
;
4167 GLboolean EXT_gpu_program_parameters
;
4168 GLboolean EXT_gpu_shader4
;
4169 GLboolean EXT_memory_object
;
4170 GLboolean EXT_memory_object_fd
;
4171 GLboolean EXT_packed_float
;
4172 GLboolean EXT_pixel_buffer_object
;
4173 GLboolean EXT_point_parameters
;
4174 GLboolean EXT_provoking_vertex
;
4175 GLboolean EXT_shader_integer_mix
;
4176 GLboolean EXT_shader_samples_identical
;
4177 GLboolean EXT_stencil_two_side
;
4178 GLboolean EXT_texture_array
;
4179 GLboolean EXT_texture_compression_latc
;
4180 GLboolean EXT_texture_compression_s3tc
;
4181 GLboolean EXT_texture_env_dot3
;
4182 GLboolean EXT_texture_filter_anisotropic
;
4183 GLboolean EXT_texture_integer
;
4184 GLboolean EXT_texture_mirror_clamp
;
4185 GLboolean EXT_texture_shared_exponent
;
4186 GLboolean EXT_texture_snorm
;
4187 GLboolean EXT_texture_sRGB
;
4188 GLboolean EXT_texture_sRGB_decode
;
4189 GLboolean EXT_texture_swizzle
;
4190 GLboolean EXT_texture_type_2_10_10_10_REV
;
4191 GLboolean EXT_transform_feedback
;
4192 GLboolean EXT_timer_query
;
4193 GLboolean EXT_vertex_array_bgra
;
4194 GLboolean EXT_window_rectangles
;
4195 GLboolean OES_copy_image
;
4196 GLboolean OES_primitive_bounding_box
;
4197 GLboolean OES_sample_variables
;
4198 GLboolean OES_standard_derivatives
;
4199 GLboolean OES_texture_buffer
;
4200 GLboolean OES_texture_cube_map_array
;
4201 GLboolean OES_viewport_array
;
4202 /* vendor extensions */
4203 GLboolean AMD_performance_monitor
;
4204 GLboolean AMD_pinned_memory
;
4205 GLboolean AMD_seamless_cubemap_per_texture
;
4206 GLboolean AMD_vertex_shader_layer
;
4207 GLboolean AMD_vertex_shader_viewport_index
;
4208 GLboolean ANDROID_extension_pack_es31a
;
4209 GLboolean APPLE_object_purgeable
;
4210 GLboolean ATI_meminfo
;
4211 GLboolean ATI_texture_compression_3dc
;
4212 GLboolean ATI_texture_mirror_once
;
4213 GLboolean ATI_texture_env_combine3
;
4214 GLboolean ATI_fragment_shader
;
4215 GLboolean ATI_separate_stencil
;
4216 GLboolean GREMEDY_string_marker
;
4217 GLboolean INTEL_conservative_rasterization
;
4218 GLboolean INTEL_performance_query
;
4219 GLboolean KHR_blend_equation_advanced
;
4220 GLboolean KHR_blend_equation_advanced_coherent
;
4221 GLboolean KHR_robustness
;
4222 GLboolean KHR_texture_compression_astc_hdr
;
4223 GLboolean KHR_texture_compression_astc_ldr
;
4224 GLboolean KHR_texture_compression_astc_sliced_3d
;
4225 GLboolean MESA_tile_raster_order
;
4226 GLboolean MESA_pack_invert
;
4227 GLboolean MESA_shader_framebuffer_fetch
;
4228 GLboolean MESA_shader_framebuffer_fetch_non_coherent
;
4229 GLboolean MESA_shader_integer_functions
;
4230 GLboolean MESA_ycbcr_texture
;
4231 GLboolean NV_conditional_render
;
4232 GLboolean NV_fill_rectangle
;
4233 GLboolean NV_fog_distance
;
4234 GLboolean NV_point_sprite
;
4235 GLboolean NV_primitive_restart
;
4236 GLboolean NV_texture_barrier
;
4237 GLboolean NV_texture_env_combine4
;
4238 GLboolean NV_texture_rectangle
;
4239 GLboolean NV_vdpau_interop
;
4240 GLboolean NVX_gpu_memory_info
;
4241 GLboolean TDFX_texture_compression_FXT1
;
4242 GLboolean OES_EGL_image
;
4243 GLboolean OES_draw_texture
;
4244 GLboolean OES_depth_texture_cube_map
;
4245 GLboolean OES_EGL_image_external
;
4246 GLboolean OES_texture_float
;
4247 GLboolean OES_texture_float_linear
;
4248 GLboolean OES_texture_half_float
;
4249 GLboolean OES_texture_half_float_linear
;
4250 GLboolean OES_compressed_ETC1_RGB8_texture
;
4251 GLboolean OES_geometry_shader
;
4252 GLboolean OES_texture_compression_astc
;
4253 GLboolean extension_sentinel
;
4254 /** The extension string */
4255 const GLubyte
*String
;
4256 /** Number of supported extensions */
4259 * The context version which extension helper functions compare against.
4260 * By default, the value is equal to ctx->Version. This changes to ~0
4261 * while meta is in progress.
4265 * Force-enabled, yet unrecognized, extensions.
4266 * See _mesa_one_time_init_extension_overrides()
4268 #define MAX_UNRECOGNIZED_EXTENSIONS 16
4269 const char *unrecognized_extensions
[MAX_UNRECOGNIZED_EXTENSIONS
];
4274 * A stack of matrices (projection, modelview, color, texture, etc).
4276 struct gl_matrix_stack
4278 GLmatrix
*Top
; /**< points into Stack */
4279 GLmatrix
*Stack
; /**< array [MaxDepth] of GLmatrix */
4280 unsigned StackSize
; /**< Number of elements in Stack */
4281 GLuint Depth
; /**< 0 <= Depth < MaxDepth */
4282 GLuint MaxDepth
; /**< size of Stack[] array */
4283 GLuint DirtyFlag
; /**< _NEW_MODELVIEW or _NEW_PROJECTION, for example */
4288 * \name Bits for image transfer operations
4289 * \sa __struct gl_contextRec::ImageTransferState.
4292 #define IMAGE_SCALE_BIAS_BIT 0x1
4293 #define IMAGE_SHIFT_OFFSET_BIT 0x2
4294 #define IMAGE_MAP_COLOR_BIT 0x4
4295 #define IMAGE_CLAMP_BIT 0x800
4298 /** Pixel Transfer ops */
4299 #define IMAGE_BITS (IMAGE_SCALE_BIAS_BIT | \
4300 IMAGE_SHIFT_OFFSET_BIT | \
4301 IMAGE_MAP_COLOR_BIT)
4305 * \name Bits to indicate what state has changed.
4308 #define _NEW_MODELVIEW (1u << 0) /**< gl_context::ModelView */
4309 #define _NEW_PROJECTION (1u << 1) /**< gl_context::Projection */
4310 #define _NEW_TEXTURE_MATRIX (1u << 2) /**< gl_context::TextureMatrix */
4311 #define _NEW_COLOR (1u << 3) /**< gl_context::Color */
4312 #define _NEW_DEPTH (1u << 4) /**< gl_context::Depth */
4313 #define _NEW_EVAL (1u << 5) /**< gl_context::Eval, EvalMap */
4314 #define _NEW_FOG (1u << 6) /**< gl_context::Fog */
4315 #define _NEW_HINT (1u << 7) /**< gl_context::Hint */
4316 #define _NEW_LIGHT (1u << 8) /**< gl_context::Light */
4317 #define _NEW_LINE (1u << 9) /**< gl_context::Line */
4318 #define _NEW_PIXEL (1u << 10) /**< gl_context::Pixel */
4319 #define _NEW_POINT (1u << 11) /**< gl_context::Point */
4320 #define _NEW_POLYGON (1u << 12) /**< gl_context::Polygon */
4321 #define _NEW_POLYGONSTIPPLE (1u << 13) /**< gl_context::PolygonStipple */
4322 #define _NEW_SCISSOR (1u << 14) /**< gl_context::Scissor */
4323 #define _NEW_STENCIL (1u << 15) /**< gl_context::Stencil */
4324 #define _NEW_TEXTURE_OBJECT (1u << 16) /**< gl_context::Texture (bindings only) */
4325 #define _NEW_TRANSFORM (1u << 17) /**< gl_context::Transform */
4326 #define _NEW_VIEWPORT (1u << 18) /**< gl_context::Viewport */
4327 #define _NEW_TEXTURE_STATE (1u << 19) /**< gl_context::Texture (states only) */
4328 #define _NEW_ARRAY (1u << 20) /**< gl_context::Array */
4329 #define _NEW_RENDERMODE (1u << 21) /**< gl_context::RenderMode, etc */
4330 #define _NEW_BUFFERS (1u << 22) /**< gl_context::Visual, DrawBuffer, */
4331 #define _NEW_CURRENT_ATTRIB (1u << 23) /**< gl_context::Current */
4332 #define _NEW_MULTISAMPLE (1u << 24) /**< gl_context::Multisample */
4333 #define _NEW_TRACK_MATRIX (1u << 25) /**< gl_context::VertexProgram */
4334 #define _NEW_PROGRAM (1u << 26) /**< New program/shader state */
4335 #define _NEW_PROGRAM_CONSTANTS (1u << 27)
4337 #define _NEW_FRAG_CLAMP (1u << 29)
4338 /* gap, re-use for core Mesa state only; use ctx->DriverFlags otherwise */
4339 #define _NEW_VARYING_VP_INPUTS (1u << 31) /**< gl_context::varying_vp_inputs */
4345 * Composite state flags
4348 #define _NEW_TEXTURE (_NEW_TEXTURE_OBJECT | _NEW_TEXTURE_STATE)
4350 #define _MESA_NEW_NEED_EYE_COORDS (_NEW_LIGHT | \
4351 _NEW_TEXTURE_STATE | \
4356 #define _MESA_NEW_SEPARATE_SPECULAR (_NEW_LIGHT | \
4366 /* This has to be included here. */
4370 /** Opaque declaration of display list payload data type */
4371 union gl_dlist_node
;
4375 * Per-display list information.
4377 struct gl_display_list
4380 GLbitfield Flags
; /**< DLIST_x flags */
4381 GLchar
*Label
; /**< GL_KHR_debug */
4382 /** The dlist commands are in a linked list of nodes */
4383 union gl_dlist_node
*Head
;
4388 * State used during display list compilation and execution.
4390 struct gl_dlist_state
4392 struct gl_display_list
*CurrentList
; /**< List currently being compiled */
4393 union gl_dlist_node
*CurrentBlock
; /**< Pointer to current block of nodes */
4394 GLuint CurrentPos
; /**< Index into current block of nodes */
4395 GLuint CallDepth
; /**< Current recursion calling depth */
4397 GLvertexformat ListVtxfmt
;
4399 GLubyte ActiveAttribSize
[VERT_ATTRIB_MAX
];
4400 GLfloat CurrentAttrib
[VERT_ATTRIB_MAX
][4];
4402 GLubyte ActiveMaterialSize
[MAT_ATTRIB_MAX
];
4403 GLfloat CurrentMaterial
[MAT_ATTRIB_MAX
][4];
4406 /* State known to have been set by the currently-compiling display
4407 * list. Used to eliminate some redundant state changes.
4415 * These are a mapping of the GL_ARB_debug_output/GL_KHR_debug enums
4416 * to small enums suitable for use as an array index.
4419 enum mesa_debug_source
4421 MESA_DEBUG_SOURCE_API
,
4422 MESA_DEBUG_SOURCE_WINDOW_SYSTEM
,
4423 MESA_DEBUG_SOURCE_SHADER_COMPILER
,
4424 MESA_DEBUG_SOURCE_THIRD_PARTY
,
4425 MESA_DEBUG_SOURCE_APPLICATION
,
4426 MESA_DEBUG_SOURCE_OTHER
,
4427 MESA_DEBUG_SOURCE_COUNT
4430 enum mesa_debug_type
4432 MESA_DEBUG_TYPE_ERROR
,
4433 MESA_DEBUG_TYPE_DEPRECATED
,
4434 MESA_DEBUG_TYPE_UNDEFINED
,
4435 MESA_DEBUG_TYPE_PORTABILITY
,
4436 MESA_DEBUG_TYPE_PERFORMANCE
,
4437 MESA_DEBUG_TYPE_OTHER
,
4438 MESA_DEBUG_TYPE_MARKER
,
4439 MESA_DEBUG_TYPE_PUSH_GROUP
,
4440 MESA_DEBUG_TYPE_POP_GROUP
,
4441 MESA_DEBUG_TYPE_COUNT
4444 enum mesa_debug_severity
4446 MESA_DEBUG_SEVERITY_LOW
,
4447 MESA_DEBUG_SEVERITY_MEDIUM
,
4448 MESA_DEBUG_SEVERITY_HIGH
,
4449 MESA_DEBUG_SEVERITY_NOTIFICATION
,
4450 MESA_DEBUG_SEVERITY_COUNT
4456 * Driver-specific state flags.
4458 * These are or'd with gl_context::NewDriverState to notify a driver about
4459 * a state change. The driver sets the flags at context creation and
4460 * the meaning of the bits set is opaque to core Mesa.
4462 struct gl_driver_flags
4464 /** gl_context::Array::_DrawArrays (vertex array state) */
4467 /** gl_context::TransformFeedback::CurrentObject */
4468 uint64_t NewTransformFeedback
;
4470 /** gl_context::TransformFeedback::CurrentObject::shader_program */
4471 uint64_t NewTransformFeedbackProg
;
4473 /** gl_context::RasterDiscard */
4474 uint64_t NewRasterizerDiscard
;
4476 /** gl_context::TileRasterOrder* */
4477 uint64_t NewTileRasterOrder
;
4480 * gl_context::UniformBufferBindings
4481 * gl_shader_program::UniformBlocks
4483 uint64_t NewUniformBuffer
;
4486 * gl_context::ShaderStorageBufferBindings
4487 * gl_shader_program::ShaderStorageBlocks
4489 uint64_t NewShaderStorageBuffer
;
4491 uint64_t NewTextureBuffer
;
4494 * gl_context::AtomicBufferBindings
4496 uint64_t NewAtomicBuffer
;
4499 * gl_context::ImageUnits
4501 uint64_t NewImageUnits
;
4504 * gl_context::TessCtrlProgram::patch_default_*
4506 uint64_t NewDefaultTessLevels
;
4509 * gl_context::IntelConservativeRasterization
4511 uint64_t NewIntelConservativeRasterization
;
4514 * gl_context::Scissor::WindowRects
4516 uint64_t NewWindowRectangles
;
4518 /** gl_context::Color::sRGBEnabled */
4519 uint64_t NewFramebufferSRGB
;
4521 /** gl_context::Scissor::EnableFlags */
4522 uint64_t NewScissorTest
;
4524 /** gl_context::Scissor::ScissorArray */
4525 uint64_t NewScissorRect
;
4527 /** gl_context::Color::Alpha* */
4528 uint64_t NewAlphaTest
;
4530 /** gl_context::Color::Blend/Dither */
4533 /** gl_context::Color::BlendColor */
4534 uint64_t NewBlendColor
;
4536 /** gl_context::Color::Color/Index */
4537 uint64_t NewColorMask
;
4539 /** gl_context::Depth */
4542 /** gl_context::Color::LogicOp/ColorLogicOp/IndexLogicOp */
4543 uint64_t NewLogicOp
;
4545 /** gl_context::Multisample::Enabled */
4546 uint64_t NewMultisampleEnable
;
4548 /** gl_context::Multisample::SampleAlphaTo* */
4549 uint64_t NewSampleAlphaToXEnable
;
4551 /** gl_context::Multisample::SampleCoverage/SampleMaskValue */
4552 uint64_t NewSampleMask
;
4554 /** gl_context::Multisample::(Min)SampleShading */
4555 uint64_t NewSampleShading
;
4557 /** gl_context::Stencil */
4558 uint64_t NewStencil
;
4560 /** gl_context::Transform::ClipOrigin/ClipDepthMode */
4561 uint64_t NewClipControl
;
4563 /** gl_context::Transform::EyeUserPlane */
4564 uint64_t NewClipPlane
;
4566 /** gl_context::Transform::ClipPlanesEnabled */
4567 uint64_t NewClipPlaneEnable
;
4569 /** gl_context::Transform::DepthClamp */
4570 uint64_t NewDepthClamp
;
4572 /** gl_context::Line */
4573 uint64_t NewLineState
;
4575 /** gl_context::Polygon */
4576 uint64_t NewPolygonState
;
4578 /** gl_context::PolygonStipple */
4579 uint64_t NewPolygonStipple
;
4581 /** gl_context::ViewportArray */
4582 uint64_t NewViewport
;
4584 /** Shader constants (uniforms, program parameters, state constants) */
4585 uint64_t NewShaderConstants
[MESA_SHADER_STAGES
];
4588 struct gl_buffer_binding
4590 struct gl_buffer_object
*BufferObject
;
4591 /** Start of uniform block data in the buffer */
4593 /** Size of data allowed to be referenced from the buffer (in bytes) */
4596 * glBindBufferBase() indicates that the Size should be ignored and only
4597 * limited by the current size of the BufferObject.
4599 GLboolean AutomaticSize
;
4603 * ARB_shader_image_load_store image unit.
4605 struct gl_image_unit
4608 * Texture object bound to this unit.
4610 struct gl_texture_object
*TexObj
;
4613 * Level of the texture object bound to this unit.
4618 * \c GL_TRUE if the whole level is bound as an array of layers, \c
4619 * GL_FALSE if only some specific layer of the texture is bound.
4625 * Layer of the texture object bound to this unit as specified by the
4631 * Layer of the texture object bound to this unit, or zero if the
4632 * whole level is bound.
4637 * Access allowed to this texture image. Either \c GL_READ_ONLY,
4638 * \c GL_WRITE_ONLY or \c GL_READ_WRITE.
4643 * GL internal format that determines the interpretation of the
4644 * image memory when shader image operations are performed through
4650 * Mesa format corresponding to \c Format.
4652 mesa_format _ActualFormat
;
4657 * Shader subroutines storage
4659 struct gl_subroutine_index_binding
4665 struct gl_texture_handle_object
4667 struct gl_texture_object
*texObj
;
4668 struct gl_sampler_object
*sampObj
;
4672 struct gl_image_handle_object
4674 struct gl_image_unit imgObj
;
4678 struct gl_memory_object
4680 GLuint Name
; /**< hash table ID/name */
4681 GLboolean Immutable
; /**< denotes mutability state of parameters */
4682 GLboolean Dedicated
; /**< import memory from a dedicated allocation */
4686 * Mesa rendering context.
4688 * This is the central context data structure for Mesa. Almost all
4689 * OpenGL state is contained in this structure.
4690 * Think of this as a base class from which device drivers will derive
4695 /** State possibly shared with other contexts in the address space */
4696 struct gl_shared_state
*Shared
;
4698 /** \name API function pointer tables */
4703 * The current dispatch table for non-displaylist-saving execution, either
4704 * BeginEnd or OutsideBeginEnd
4706 struct _glapi_table
*Exec
;
4708 * The normal dispatch table for non-displaylist-saving, non-begin/end
4710 struct _glapi_table
*OutsideBeginEnd
;
4711 /** The dispatch table used between glNewList() and glEndList() */
4712 struct _glapi_table
*Save
;
4714 * The dispatch table used between glBegin() and glEnd() (outside of a
4715 * display list). Only valid functions between those two are set, which is
4716 * mostly just the set in a GLvertexformat struct.
4718 struct _glapi_table
*BeginEnd
;
4720 * Dispatch table for when a graphics reset has happened.
4722 struct _glapi_table
*ContextLost
;
4724 * Dispatch table used to marshal API calls from the client program to a
4725 * separate server thread. NULL if API calls are not being marshalled to
4728 struct _glapi_table
*MarshalExec
;
4730 * Dispatch table currently in use for fielding API calls from the client
4731 * program. If API calls are being marshalled to another thread, this ==
4732 * MarshalExec. Otherwise it == CurrentServerDispatch.
4734 struct _glapi_table
*CurrentClientDispatch
;
4737 * Dispatch table currently in use for performing API calls. == Save or
4740 struct _glapi_table
*CurrentServerDispatch
;
4744 struct glthread_state
*GLThread
;
4746 struct gl_config Visual
;
4747 struct gl_framebuffer
*DrawBuffer
; /**< buffer for writing */
4748 struct gl_framebuffer
*ReadBuffer
; /**< buffer for reading */
4749 struct gl_framebuffer
*WinSysDrawBuffer
; /**< set with MakeCurrent */
4750 struct gl_framebuffer
*WinSysReadBuffer
; /**< set with MakeCurrent */
4753 * Device driver function pointer table
4755 struct dd_function_table Driver
;
4757 /** Core/Driver constants */
4758 struct gl_constants Const
;
4760 /** \name The various 4x4 matrix stacks */
4762 struct gl_matrix_stack ModelviewMatrixStack
;
4763 struct gl_matrix_stack ProjectionMatrixStack
;
4764 struct gl_matrix_stack TextureMatrixStack
[MAX_TEXTURE_UNITS
];
4765 struct gl_matrix_stack ProgramMatrixStack
[MAX_PROGRAM_MATRICES
];
4766 struct gl_matrix_stack
*CurrentStack
; /**< Points to one of the above stacks */
4769 /** Combined modelview and projection matrix */
4770 GLmatrix _ModelProjectMatrix
;
4772 /** \name Display lists */
4773 struct gl_dlist_state ListState
;
4775 GLboolean ExecuteFlag
; /**< Execute GL commands? */
4776 GLboolean CompileFlag
; /**< Compile GL commands into display list? */
4778 /** Extension information */
4779 struct gl_extensions Extensions
;
4781 /** GL version integer, for example 31 for GL 3.1, or 20 for GLES 2.0. */
4783 char *VersionString
;
4785 /** \name State attribute stack (for glPush/PopAttrib) */
4787 GLuint AttribStackDepth
;
4788 struct gl_attrib_node
*AttribStack
[MAX_ATTRIB_STACK_DEPTH
];
4791 /** \name Renderer attribute groups
4793 * We define a struct for each attribute group to make pushing and popping
4794 * attributes easy. Also it's a good organization.
4797 struct gl_accum_attrib Accum
; /**< Accum buffer attributes */
4798 struct gl_colorbuffer_attrib Color
; /**< Color buffer attributes */
4799 struct gl_current_attrib Current
; /**< Current attributes */
4800 struct gl_depthbuffer_attrib Depth
; /**< Depth buffer attributes */
4801 struct gl_eval_attrib Eval
; /**< Eval attributes */
4802 struct gl_fog_attrib Fog
; /**< Fog attributes */
4803 struct gl_hint_attrib Hint
; /**< Hint attributes */
4804 struct gl_light_attrib Light
; /**< Light attributes */
4805 struct gl_line_attrib Line
; /**< Line attributes */
4806 struct gl_list_attrib List
; /**< List attributes */
4807 struct gl_multisample_attrib Multisample
;
4808 struct gl_pixel_attrib Pixel
; /**< Pixel attributes */
4809 struct gl_point_attrib Point
; /**< Point attributes */
4810 struct gl_polygon_attrib Polygon
; /**< Polygon attributes */
4811 GLuint PolygonStipple
[32]; /**< Polygon stipple */
4812 struct gl_scissor_attrib Scissor
; /**< Scissor attributes */
4813 struct gl_stencil_attrib Stencil
; /**< Stencil buffer attributes */
4814 struct gl_texture_attrib Texture
; /**< Texture attributes */
4815 struct gl_transform_attrib Transform
; /**< Transformation attributes */
4816 struct gl_viewport_attrib ViewportArray
[MAX_VIEWPORTS
]; /**< Viewport attributes */
4819 /** \name Client attribute stack */
4821 GLuint ClientAttribStackDepth
;
4822 struct gl_attrib_node
*ClientAttribStack
[MAX_CLIENT_ATTRIB_STACK_DEPTH
];
4825 /** \name Client attribute groups */
4827 struct gl_array_attrib Array
; /**< Vertex arrays */
4828 struct gl_pixelstore_attrib Pack
; /**< Pixel packing */
4829 struct gl_pixelstore_attrib Unpack
; /**< Pixel unpacking */
4830 struct gl_pixelstore_attrib DefaultPacking
; /**< Default params */
4833 /** \name Other assorted state (not pushed/popped on attribute stack) */
4835 struct gl_pixelmaps PixelMaps
;
4837 struct gl_evaluators EvalMap
; /**< All evaluators */
4838 struct gl_feedback Feedback
; /**< Feedback */
4839 struct gl_selection Select
; /**< Selection */
4841 struct gl_program_state Program
; /**< general program state */
4842 struct gl_vertex_program_state VertexProgram
;
4843 struct gl_fragment_program_state FragmentProgram
;
4844 struct gl_geometry_program_state GeometryProgram
;
4845 struct gl_compute_program_state ComputeProgram
;
4846 struct gl_tess_ctrl_program_state TessCtrlProgram
;
4847 struct gl_tess_eval_program_state TessEvalProgram
;
4848 struct gl_ati_fragment_shader_state ATIFragmentShader
;
4850 struct gl_pipeline_shader_state Pipeline
; /**< GLSL pipeline shader object state */
4851 struct gl_pipeline_object Shader
; /**< GLSL shader object state */
4854 * Current active shader pipeline state
4856 * Almost all internal users want ::_Shader instead of ::Shader. The
4857 * exceptions are bits of legacy GLSL API that do not know about separate
4860 * If a program is active via \c glUseProgram, this will point to
4863 * If a program pipeline is active via \c glBindProgramPipeline, this will
4864 * point to \c ::Pipeline.Current.
4866 * If neither a program nor a program pipeline is active, this will point to
4867 * \c ::Pipeline.Default. This ensures that \c ::_Shader will never be
4870 struct gl_pipeline_object
*_Shader
;
4872 struct gl_query_state Query
; /**< occlusion, timer queries */
4874 struct gl_transform_feedback_state TransformFeedback
;
4876 struct gl_perf_monitor_state PerfMonitor
;
4877 struct gl_perf_query_state PerfQuery
;
4879 struct gl_buffer_object
*DrawIndirectBuffer
; /** < GL_ARB_draw_indirect */
4880 struct gl_buffer_object
*ParameterBuffer
; /** < GL_ARB_indirect_parameters */
4881 struct gl_buffer_object
*DispatchIndirectBuffer
; /** < GL_ARB_compute_shader */
4883 struct gl_buffer_object
*CopyReadBuffer
; /**< GL_ARB_copy_buffer */
4884 struct gl_buffer_object
*CopyWriteBuffer
; /**< GL_ARB_copy_buffer */
4886 struct gl_buffer_object
*QueryBuffer
; /**< GL_ARB_query_buffer_object */
4889 * Current GL_ARB_uniform_buffer_object binding referenced by
4890 * GL_UNIFORM_BUFFER target for glBufferData, glMapBuffer, etc.
4892 struct gl_buffer_object
*UniformBuffer
;
4895 * Current GL_ARB_shader_storage_buffer_object binding referenced by
4896 * GL_SHADER_STORAGE_BUFFER target for glBufferData, glMapBuffer, etc.
4898 struct gl_buffer_object
*ShaderStorageBuffer
;
4901 * Array of uniform buffers for GL_ARB_uniform_buffer_object and GL 3.1.
4902 * This is set up using glBindBufferRange() or glBindBufferBase(). They are
4903 * associated with uniform blocks by glUniformBlockBinding()'s state in the
4906 struct gl_buffer_binding
4907 UniformBufferBindings
[MAX_COMBINED_UNIFORM_BUFFERS
];
4910 * Array of shader storage buffers for ARB_shader_storage_buffer_object
4911 * and GL 4.3. This is set up using glBindBufferRange() or
4912 * glBindBufferBase(). They are associated with shader storage blocks by
4913 * glShaderStorageBlockBinding()'s state in the shader program.
4915 struct gl_buffer_binding
4916 ShaderStorageBufferBindings
[MAX_COMBINED_SHADER_STORAGE_BUFFERS
];
4919 * Object currently associated with the GL_ATOMIC_COUNTER_BUFFER
4922 struct gl_buffer_object
*AtomicBuffer
;
4925 * Object currently associated w/ the GL_EXTERNAL_VIRTUAL_MEMORY_BUFFER_AMD
4928 struct gl_buffer_object
*ExternalVirtualMemoryBuffer
;
4931 * Array of atomic counter buffer binding points.
4933 struct gl_buffer_binding
4934 AtomicBufferBindings
[MAX_COMBINED_ATOMIC_BUFFERS
];
4937 * Array of image units for ARB_shader_image_load_store.
4939 struct gl_image_unit ImageUnits
[MAX_IMAGE_UNITS
];
4941 struct gl_subroutine_index_binding SubroutineIndex
[MESA_SHADER_STAGES
];
4944 struct gl_meta_state
*Meta
; /**< for "meta" operations */
4946 /* GL_EXT_framebuffer_object */
4947 struct gl_renderbuffer
*CurrentRenderbuffer
;
4949 GLenum ErrorValue
; /**< Last error code */
4952 * Recognize and silence repeated error debug messages in buggy apps.
4954 const char *ErrorDebugFmtString
;
4955 GLuint ErrorDebugCount
;
4957 /* GL_ARB_debug_output/GL_KHR_debug */
4958 simple_mtx_t DebugMutex
;
4959 struct gl_debug_state
*Debug
;
4961 GLenum RenderMode
; /**< either GL_RENDER, GL_SELECT, GL_FEEDBACK */
4962 GLbitfield NewState
; /**< bitwise-or of _NEW_* flags */
4963 uint64_t NewDriverState
; /**< bitwise-or of flags from DriverFlags */
4965 struct gl_driver_flags DriverFlags
;
4967 GLboolean ViewportInitialized
; /**< has viewport size been initialized? */
4969 GLbitfield varying_vp_inputs
; /**< mask of VERT_BIT_* flags */
4971 /** \name Derived state */
4972 GLbitfield _ImageTransferState
;/**< bitwise-or of IMAGE_*_BIT flags */
4973 GLfloat _EyeZDir
[3];
4974 GLfloat _ModelViewInvScale
; /* may be for model- or eyespace lighting */
4975 GLfloat _ModelViewInvScaleEyespace
; /* always factor defined in spec */
4976 GLboolean _NeedEyeCoords
;
4977 GLboolean _ForceEyeCoords
;
4979 GLuint TextureStateTimestamp
; /**< detect changes to shared state */
4981 struct gl_list_extensions
*ListExt
; /**< driver dlist extensions */
4983 /** \name For debugging/development only */
4985 GLboolean FirstTimeCurrent
;
4989 * False if this context was created without a config. This is needed
4990 * because the initial state of glDrawBuffers depends on this
4992 GLboolean HasConfig
;
4994 GLboolean TextureFormatSupported
[MESA_FORMAT_COUNT
];
4996 GLboolean RasterDiscard
; /**< GL_RASTERIZER_DISCARD */
4997 GLboolean IntelConservativeRasterization
; /**< GL_INTEL_CONSERVATIVE_RASTERIZATION */
4999 /** Does glVertexAttrib(0) alias glVertex()? */
5000 bool _AttribZeroAliasesVertex
;
5003 * When set, TileRasterOrderIncreasingX/Y control the order that a tiled
5004 * renderer's tiles should be excecuted, to meet the requirements of
5005 * GL_MESA_tile_raster_order.
5007 GLboolean TileRasterOrderFixed
;
5008 GLboolean TileRasterOrderIncreasingX
;
5009 GLboolean TileRasterOrderIncreasingY
;
5012 * \name Hooks for module contexts.
5014 * These will eventually live in the driver or elsewhere.
5017 void *swrast_context
;
5018 void *swsetup_context
;
5019 void *swtnl_context
;
5020 struct vbo_context
*vbo_context
;
5021 struct st_context
*st
;
5026 * \name NV_vdpau_interop
5029 const void *vdpDevice
;
5030 const void *vdpGetProcAddress
;
5031 struct set
*vdpSurfaces
;
5035 * Has this context observed a GPU reset in any context in the share group?
5037 * Once this field becomes true, it is never reset to false.
5039 GLboolean ShareGroupReset
;
5042 * \name OES_primitive_bounding_box
5044 * Stores the arguments to glPrimitiveBoundingBox
5046 GLfloat PrimitiveBoundingBox
[8];
5048 struct disk_cache
*Cache
;
5051 * \name GL_ARB_bindless_texture
5054 struct hash_table_u64
*ResidentTextureHandles
;
5055 struct hash_table_u64
*ResidentImageHandles
;
5060 * Information about memory usage. All sizes are in kilobytes.
5062 struct gl_memory_info
5064 unsigned total_device_memory
; /**< size of device memory, e.g. VRAM */
5065 unsigned avail_device_memory
; /**< free device memory at the moment */
5066 unsigned total_staging_memory
; /**< size of staging memory, e.g. GART */
5067 unsigned avail_staging_memory
; /**< free staging memory at the moment */
5068 unsigned device_memory_evicted
; /**< size of memory evicted (monotonic counter) */
5069 unsigned nr_device_memory_evictions
; /**< # of evictions (monotonic counter) */
5073 extern int MESA_VERBOSE
;
5074 extern int MESA_DEBUG_FLAGS
;
5075 # define MESA_FUNCTION __func__
5077 # define MESA_VERBOSE 0
5078 # define MESA_DEBUG_FLAGS 0
5079 # define MESA_FUNCTION "a function"
5083 /** The MESA_VERBOSE var is a bitmask of these flags */
5086 VERBOSE_VARRAY
= 0x0001,
5087 VERBOSE_TEXTURE
= 0x0002,
5088 VERBOSE_MATERIAL
= 0x0004,
5089 VERBOSE_PIPELINE
= 0x0008,
5090 VERBOSE_DRIVER
= 0x0010,
5091 VERBOSE_STATE
= 0x0020,
5092 VERBOSE_API
= 0x0040,
5093 VERBOSE_DISPLAY_LIST
= 0x0100,
5094 VERBOSE_LIGHTING
= 0x0200,
5095 VERBOSE_PRIMS
= 0x0400,
5096 VERBOSE_VERTS
= 0x0800,
5097 VERBOSE_DISASSEM
= 0x1000,
5098 VERBOSE_DRAW
= 0x2000,
5099 VERBOSE_SWAPBUFFERS
= 0x4000
5103 /** The MESA_DEBUG_FLAGS var is a bitmask of these flags */
5106 DEBUG_SILENT
= (1 << 0),
5107 DEBUG_ALWAYS_FLUSH
= (1 << 1),
5108 DEBUG_INCOMPLETE_TEXTURE
= (1 << 2),
5109 DEBUG_INCOMPLETE_FBO
= (1 << 3),
5110 DEBUG_CONTEXT
= (1 << 4)
5117 #endif /* MTYPES_H */