2 * Mesa 3-D graphics library
4 * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
5 * Copyright (C) 2009 VMware, Inc. All Rights Reserved.
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the "Software"),
9 * to deal in the Software without restriction, including without limitation
10 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11 * and/or sell copies of the Software, and to permit persons to whom the
12 * Software is furnished to do so, subject to the following conditions:
14 * The above copyright notice and this permission notice shall be included
15 * in all copies or substantial portions of the Software.
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
21 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
22 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
23 * OTHER DEALINGS IN THE SOFTWARE.
28 * Main Mesa data structures.
30 * Please try to mark derived values with a leading underscore ('_').
37 #include <stdint.h> /* uint32_t */
39 #include "c11/threads.h"
41 #include "main/glheader.h"
42 #include "main/config.h"
43 #include "glapi/glapi.h"
44 #include "math/m_matrix.h" /* GLmatrix */
45 #include "compiler/shader_enums.h"
46 #include "compiler/shader_info.h"
47 #include "main/formats.h" /* MESA_FORMAT_COUNT */
48 #include "compiler/glsl/list.h"
49 #include "util/bitscan.h"
50 #include "util/u_dynarray.h"
59 * \name 64-bit extension of GLbitfield.
62 typedef GLuint64 GLbitfield64
;
64 /** Set a single bit */
65 #define BITFIELD64_BIT(b) ((GLbitfield64)1 << (b))
66 /** Set all bits up to excluding bit b */
67 #define BITFIELD64_MASK(b) \
68 ((b) == 64 ? (~(GLbitfield64)0) : BITFIELD64_BIT(b) - 1)
69 /** Set count bits starting from bit b */
70 #define BITFIELD64_RANGE(b, count) \
71 (BITFIELD64_MASK((b) + (count)) & ~BITFIELD64_MASK(b))
75 * \name Some forward type declarations
78 struct _mesa_HashTable
;
79 struct gl_attrib_node
;
80 struct gl_list_extensions
;
82 struct gl_program_cache
;
83 struct gl_texture_object
;
84 struct gl_debug_state
;
87 struct gl_uniform_storage
;
88 struct prog_instruction
;
89 struct gl_program_parameter_list
;
96 /** Extra draw modes beyond GL_POINTS, GL_TRIANGLE_FAN, etc */
97 #define PRIM_MAX GL_PATCHES
98 #define PRIM_OUTSIDE_BEGIN_END (PRIM_MAX + 1)
99 #define PRIM_UNKNOWN (PRIM_MAX + 2)
102 * Determine if the given gl_varying_slot appears in the fragment shader.
104 static inline GLboolean
105 _mesa_varying_slot_in_fs(gl_varying_slot slot
)
108 case VARYING_SLOT_PSIZ
:
109 case VARYING_SLOT_BFC0
:
110 case VARYING_SLOT_BFC1
:
111 case VARYING_SLOT_EDGE
:
112 case VARYING_SLOT_CLIP_VERTEX
:
113 case VARYING_SLOT_LAYER
:
114 case VARYING_SLOT_TESS_LEVEL_OUTER
:
115 case VARYING_SLOT_TESS_LEVEL_INNER
:
116 case VARYING_SLOT_BOUNDING_BOX0
:
117 case VARYING_SLOT_BOUNDING_BOX1
:
125 * Indexes for all renderbuffers
129 /* the four standard color buffers */
137 /* optional aux buffer */
139 /* generic renderbuffers */
153 * Bit flags for all renderbuffers
155 #define BUFFER_BIT_FRONT_LEFT (1 << BUFFER_FRONT_LEFT)
156 #define BUFFER_BIT_BACK_LEFT (1 << BUFFER_BACK_LEFT)
157 #define BUFFER_BIT_FRONT_RIGHT (1 << BUFFER_FRONT_RIGHT)
158 #define BUFFER_BIT_BACK_RIGHT (1 << BUFFER_BACK_RIGHT)
159 #define BUFFER_BIT_AUX0 (1 << BUFFER_AUX0)
160 #define BUFFER_BIT_AUX1 (1 << BUFFER_AUX1)
161 #define BUFFER_BIT_AUX2 (1 << BUFFER_AUX2)
162 #define BUFFER_BIT_AUX3 (1 << BUFFER_AUX3)
163 #define BUFFER_BIT_DEPTH (1 << BUFFER_DEPTH)
164 #define BUFFER_BIT_STENCIL (1 << BUFFER_STENCIL)
165 #define BUFFER_BIT_ACCUM (1 << BUFFER_ACCUM)
166 #define BUFFER_BIT_COLOR0 (1 << BUFFER_COLOR0)
167 #define BUFFER_BIT_COLOR1 (1 << BUFFER_COLOR1)
168 #define BUFFER_BIT_COLOR2 (1 << BUFFER_COLOR2)
169 #define BUFFER_BIT_COLOR3 (1 << BUFFER_COLOR3)
170 #define BUFFER_BIT_COLOR4 (1 << BUFFER_COLOR4)
171 #define BUFFER_BIT_COLOR5 (1 << BUFFER_COLOR5)
172 #define BUFFER_BIT_COLOR6 (1 << BUFFER_COLOR6)
173 #define BUFFER_BIT_COLOR7 (1 << BUFFER_COLOR7)
176 * Mask of all the color buffer bits (but not accum).
178 #define BUFFER_BITS_COLOR (BUFFER_BIT_FRONT_LEFT | \
179 BUFFER_BIT_BACK_LEFT | \
180 BUFFER_BIT_FRONT_RIGHT | \
181 BUFFER_BIT_BACK_RIGHT | \
183 BUFFER_BIT_COLOR0 | \
184 BUFFER_BIT_COLOR1 | \
185 BUFFER_BIT_COLOR2 | \
186 BUFFER_BIT_COLOR3 | \
187 BUFFER_BIT_COLOR4 | \
188 BUFFER_BIT_COLOR5 | \
189 BUFFER_BIT_COLOR6 | \
192 /* Mask of bits for depth+stencil buffers */
193 #define BUFFER_BITS_DEPTH_STENCIL (BUFFER_BIT_DEPTH | BUFFER_BIT_STENCIL)
196 * Framebuffer configuration (aka visual / pixelformat)
197 * Note: some of these fields should be boolean, but it appears that
198 * code in drivers/dri/common/util.c requires int-sized fields.
204 GLuint doubleBufferMode
;
207 GLboolean haveAccumBuffer
;
208 GLboolean haveDepthBuffer
;
209 GLboolean haveStencilBuffer
;
211 GLint redBits
, greenBits
, blueBits
, alphaBits
; /* bits per comp */
212 GLuint redMask
, greenMask
, blueMask
, alphaMask
;
213 GLint rgbBits
; /* total bits for rgb */
214 GLint indexBits
; /* total bits for colorindex */
216 GLint accumRedBits
, accumGreenBits
, accumBlueBits
, accumAlphaBits
;
224 /* EXT_visual_rating / GLX 1.2 */
227 /* EXT_visual_info / GLX 1.2 */
228 GLint transparentPixel
;
229 /* colors are floats scaled to ints */
230 GLint transparentRed
, transparentGreen
, transparentBlue
, transparentAlpha
;
231 GLint transparentIndex
;
233 /* ARB_multisample / SGIS_multisample */
237 /* SGIX_pbuffer / GLX 1.3 */
238 GLint maxPbufferWidth
;
239 GLint maxPbufferHeight
;
240 GLint maxPbufferPixels
;
241 GLint optimalPbufferWidth
; /* Only for SGIX_pbuffer. */
242 GLint optimalPbufferHeight
; /* Only for SGIX_pbuffer. */
244 /* OML_swap_method */
247 /* EXT_texture_from_pixmap */
248 GLint bindToTextureRgb
;
249 GLint bindToTextureRgba
;
250 GLint bindToMipmapTexture
;
251 GLint bindToTextureTargets
;
254 /* EXT_framebuffer_sRGB */
260 * \name Bit flags used for updating material values.
263 #define MAT_ATTRIB_FRONT_AMBIENT 0
264 #define MAT_ATTRIB_BACK_AMBIENT 1
265 #define MAT_ATTRIB_FRONT_DIFFUSE 2
266 #define MAT_ATTRIB_BACK_DIFFUSE 3
267 #define MAT_ATTRIB_FRONT_SPECULAR 4
268 #define MAT_ATTRIB_BACK_SPECULAR 5
269 #define MAT_ATTRIB_FRONT_EMISSION 6
270 #define MAT_ATTRIB_BACK_EMISSION 7
271 #define MAT_ATTRIB_FRONT_SHININESS 8
272 #define MAT_ATTRIB_BACK_SHININESS 9
273 #define MAT_ATTRIB_FRONT_INDEXES 10
274 #define MAT_ATTRIB_BACK_INDEXES 11
275 #define MAT_ATTRIB_MAX 12
277 #define MAT_ATTRIB_AMBIENT(f) (MAT_ATTRIB_FRONT_AMBIENT+(f))
278 #define MAT_ATTRIB_DIFFUSE(f) (MAT_ATTRIB_FRONT_DIFFUSE+(f))
279 #define MAT_ATTRIB_SPECULAR(f) (MAT_ATTRIB_FRONT_SPECULAR+(f))
280 #define MAT_ATTRIB_EMISSION(f) (MAT_ATTRIB_FRONT_EMISSION+(f))
281 #define MAT_ATTRIB_SHININESS(f)(MAT_ATTRIB_FRONT_SHININESS+(f))
282 #define MAT_ATTRIB_INDEXES(f) (MAT_ATTRIB_FRONT_INDEXES+(f))
284 #define MAT_INDEX_AMBIENT 0
285 #define MAT_INDEX_DIFFUSE 1
286 #define MAT_INDEX_SPECULAR 2
288 #define MAT_BIT_FRONT_AMBIENT (1<<MAT_ATTRIB_FRONT_AMBIENT)
289 #define MAT_BIT_BACK_AMBIENT (1<<MAT_ATTRIB_BACK_AMBIENT)
290 #define MAT_BIT_FRONT_DIFFUSE (1<<MAT_ATTRIB_FRONT_DIFFUSE)
291 #define MAT_BIT_BACK_DIFFUSE (1<<MAT_ATTRIB_BACK_DIFFUSE)
292 #define MAT_BIT_FRONT_SPECULAR (1<<MAT_ATTRIB_FRONT_SPECULAR)
293 #define MAT_BIT_BACK_SPECULAR (1<<MAT_ATTRIB_BACK_SPECULAR)
294 #define MAT_BIT_FRONT_EMISSION (1<<MAT_ATTRIB_FRONT_EMISSION)
295 #define MAT_BIT_BACK_EMISSION (1<<MAT_ATTRIB_BACK_EMISSION)
296 #define MAT_BIT_FRONT_SHININESS (1<<MAT_ATTRIB_FRONT_SHININESS)
297 #define MAT_BIT_BACK_SHININESS (1<<MAT_ATTRIB_BACK_SHININESS)
298 #define MAT_BIT_FRONT_INDEXES (1<<MAT_ATTRIB_FRONT_INDEXES)
299 #define MAT_BIT_BACK_INDEXES (1<<MAT_ATTRIB_BACK_INDEXES)
302 #define FRONT_MATERIAL_BITS (MAT_BIT_FRONT_EMISSION | \
303 MAT_BIT_FRONT_AMBIENT | \
304 MAT_BIT_FRONT_DIFFUSE | \
305 MAT_BIT_FRONT_SPECULAR | \
306 MAT_BIT_FRONT_SHININESS | \
307 MAT_BIT_FRONT_INDEXES)
309 #define BACK_MATERIAL_BITS (MAT_BIT_BACK_EMISSION | \
310 MAT_BIT_BACK_AMBIENT | \
311 MAT_BIT_BACK_DIFFUSE | \
312 MAT_BIT_BACK_SPECULAR | \
313 MAT_BIT_BACK_SHININESS | \
314 MAT_BIT_BACK_INDEXES)
316 #define ALL_MATERIAL_BITS (FRONT_MATERIAL_BITS | BACK_MATERIAL_BITS)
325 GLfloat Attrib
[MAT_ATTRIB_MAX
][4];
333 #define LIGHT_SPOT 0x1
334 #define LIGHT_LOCAL_VIEWER 0x2
335 #define LIGHT_POSITIONAL 0x4
336 #define LIGHT_NEED_VERTICES (LIGHT_POSITIONAL|LIGHT_LOCAL_VIEWER)
341 * Light source state.
345 GLfloat Ambient
[4]; /**< ambient color */
346 GLfloat Diffuse
[4]; /**< diffuse color */
347 GLfloat Specular
[4]; /**< specular color */
348 GLfloat EyePosition
[4]; /**< position in eye coordinates */
349 GLfloat SpotDirection
[4]; /**< spotlight direction in eye coordinates */
350 GLfloat SpotExponent
;
351 GLfloat SpotCutoff
; /**< in degrees */
352 GLfloat _CosCutoff
; /**< = MAX(0, cos(SpotCutoff)) */
353 GLfloat ConstantAttenuation
;
354 GLfloat LinearAttenuation
;
355 GLfloat QuadraticAttenuation
;
356 GLboolean Enabled
; /**< On/off flag */
359 * \name Derived fields
362 GLbitfield _Flags
; /**< Mask of LIGHT_x bits defined above */
364 GLfloat _Position
[4]; /**< position in eye/obj coordinates */
365 GLfloat _VP_inf_norm
[3]; /**< Norm direction to infinite light */
366 GLfloat _h_inf_norm
[3]; /**< Norm( _VP_inf_norm + <0,0,1> ) */
367 GLfloat _NormSpotDirection
[4]; /**< normalized spotlight direction */
368 GLfloat _VP_inf_spot_attenuation
;
370 GLfloat _MatAmbient
[2][3]; /**< material ambient * light ambient */
371 GLfloat _MatDiffuse
[2][3]; /**< material diffuse * light diffuse */
372 GLfloat _MatSpecular
[2][3]; /**< material spec * light specular */
382 GLfloat Ambient
[4]; /**< ambient color */
383 GLboolean LocalViewer
; /**< Local (or infinite) view point? */
384 GLboolean TwoSide
; /**< Two (or one) sided lighting? */
385 GLenum ColorControl
; /**< either GL_SINGLE_COLOR
386 * or GL_SEPARATE_SPECULAR_COLOR */
391 * Accumulation buffer attribute group (GL_ACCUM_BUFFER_BIT)
393 struct gl_accum_attrib
395 GLfloat ClearColor
[4]; /**< Accumulation buffer clear color */
400 * Used for storing clear color, texture border color, etc.
401 * The float values are typically unclamped.
412 * Color buffer attribute group (GL_COLOR_BUFFER_BIT).
414 struct gl_colorbuffer_attrib
416 GLuint ClearIndex
; /**< Index for glClear */
417 union gl_color_union ClearColor
; /**< Color for glClear, unclamped */
418 GLuint IndexMask
; /**< Color index write mask */
419 GLubyte ColorMask
[MAX_DRAW_BUFFERS
][4]; /**< Each flag is 0xff or 0x0 */
421 GLenum DrawBuffer
[MAX_DRAW_BUFFERS
]; /**< Which buffer to draw into */
424 * \name alpha testing
427 GLboolean AlphaEnabled
; /**< Alpha test enabled flag */
428 GLenum AlphaFunc
; /**< Alpha test function */
429 GLfloat AlphaRefUnclamped
;
430 GLclampf AlphaRef
; /**< Alpha reference value */
437 GLbitfield BlendEnabled
; /**< Per-buffer blend enable flags */
439 /* NOTE: this does _not_ depend on fragment clamping or any other clamping
440 * control, only on the fixed-pointness of the render target.
441 * The query does however depend on fragment color clamping.
443 GLfloat BlendColorUnclamped
[4]; /**< Blending color */
444 GLfloat BlendColor
[4]; /**< Blending color */
448 GLenum SrcRGB
; /**< RGB blend source term */
449 GLenum DstRGB
; /**< RGB blend dest term */
450 GLenum SrcA
; /**< Alpha blend source term */
451 GLenum DstA
; /**< Alpha blend dest term */
452 GLenum EquationRGB
; /**< GL_ADD, GL_SUBTRACT, etc. */
453 GLenum EquationA
; /**< GL_ADD, GL_SUBTRACT, etc. */
455 * Set if any blend factor uses SRC1. Computed at the time blend factors
458 GLboolean _UsesDualSrc
;
459 } Blend
[MAX_DRAW_BUFFERS
];
460 /** Are the blend func terms currently different for each buffer/target? */
461 GLboolean _BlendFuncPerBuffer
;
462 /** Are the blend equations currently different for each buffer/target? */
463 GLboolean _BlendEquationPerBuffer
;
466 * Which advanced blending mode is in use (or BLEND_NONE).
468 * KHR_blend_equation_advanced only allows advanced blending with a single
469 * draw buffer, and NVX_blend_equation_advanced_multi_draw_buffer still
470 * requires all draw buffers to match, so we only need a single value.
472 enum gl_advanced_blend_mode _AdvancedBlendMode
;
474 /** Coherency requested via glEnable(GL_BLEND_ADVANCED_COHERENT_KHR)? */
482 GLboolean IndexLogicOpEnabled
; /**< Color index logic op enabled flag */
483 GLboolean ColorLogicOpEnabled
; /**< RGBA logic op enabled flag */
484 GLenum LogicOp
; /**< Logic operator */
488 GLboolean DitherFlag
; /**< Dither enable flag */
490 GLboolean _ClampFragmentColor
; /** < with GL_FIXED_ONLY_ARB resolved */
491 GLenum ClampFragmentColor
; /**< GL_TRUE, GL_FALSE or GL_FIXED_ONLY_ARB */
492 GLenum ClampReadColor
; /**< GL_TRUE, GL_FALSE or GL_FIXED_ONLY_ARB */
494 GLboolean sRGBEnabled
; /**< Framebuffer sRGB blending/updating requested */
499 * Current attribute group (GL_CURRENT_BIT).
501 struct gl_current_attrib
504 * \name Current vertex attributes (color, texcoords, etc).
505 * \note Values are valid only after FLUSH_VERTICES has been called.
506 * \note Index and Edgeflag current values are stored as floats in the
507 * SIX and SEVEN attribute slots.
508 * \note We need double storage for 64-bit vertex attributes
510 GLfloat Attrib
[VERT_ATTRIB_MAX
][4*2];
513 * \name Current raster position attributes (always up to date after a
516 GLfloat RasterPos
[4];
517 GLfloat RasterDistance
;
518 GLfloat RasterColor
[4];
519 GLfloat RasterSecondaryColor
[4];
520 GLfloat RasterTexCoords
[MAX_TEXTURE_COORD_UNITS
][4];
521 GLboolean RasterPosValid
;
526 * Depth buffer attribute group (GL_DEPTH_BUFFER_BIT).
528 struct gl_depthbuffer_attrib
530 GLenum Func
; /**< Function for depth buffer compare */
531 GLclampd Clear
; /**< Value to clear depth buffer to */
532 GLboolean Test
; /**< Depth buffering enabled flag */
533 GLboolean Mask
; /**< Depth buffer writable? */
534 GLboolean BoundsTest
; /**< GL_EXT_depth_bounds_test */
535 GLfloat BoundsMin
, BoundsMax
;/**< GL_EXT_depth_bounds_test */
540 * Evaluator attribute group (GL_EVAL_BIT).
542 struct gl_eval_attrib
548 GLboolean Map1Color4
;
550 GLboolean Map1Normal
;
551 GLboolean Map1TextureCoord1
;
552 GLboolean Map1TextureCoord2
;
553 GLboolean Map1TextureCoord3
;
554 GLboolean Map1TextureCoord4
;
555 GLboolean Map1Vertex3
;
556 GLboolean Map1Vertex4
;
557 GLboolean Map2Color4
;
559 GLboolean Map2Normal
;
560 GLboolean Map2TextureCoord1
;
561 GLboolean Map2TextureCoord2
;
562 GLboolean Map2TextureCoord3
;
563 GLboolean Map2TextureCoord4
;
564 GLboolean Map2Vertex3
;
565 GLboolean Map2Vertex4
;
566 GLboolean AutoNormal
;
570 * \name Map Grid endpoints and divisions and calculated du values
574 GLfloat MapGrid1u1
, MapGrid1u2
, MapGrid1du
;
575 GLint MapGrid2un
, MapGrid2vn
;
576 GLfloat MapGrid2u1
, MapGrid2u2
, MapGrid2du
;
577 GLfloat MapGrid2v1
, MapGrid2v2
, MapGrid2dv
;
583 * Compressed fog mode.
595 * Fog attribute group (GL_FOG_BIT).
599 GLboolean Enabled
; /**< Fog enabled flag */
600 GLboolean ColorSumEnabled
;
601 uint8_t _PackedMode
; /**< Fog mode as 2 bits */
602 uint8_t _PackedEnabledMode
; /**< Masked CompressedMode */
603 GLfloat ColorUnclamped
[4]; /**< Fog color */
604 GLfloat Color
[4]; /**< Fog color */
605 GLfloat Density
; /**< Density >= 0.0 */
606 GLfloat Start
; /**< Start distance in eye coords */
607 GLfloat End
; /**< End distance in eye coords */
608 GLfloat Index
; /**< Fog index */
609 GLenum Mode
; /**< Fog mode */
610 GLenum FogCoordinateSource
; /**< GL_EXT_fog_coord */
611 GLfloat _Scale
; /**< (End == Start) ? 1.0 : 1.0 / (End - Start) */
612 GLenum FogDistanceMode
; /**< GL_NV_fog_distance */
617 * Hint attribute group (GL_HINT_BIT).
619 * Values are always one of GL_FASTEST, GL_NICEST, or GL_DONT_CARE.
621 struct gl_hint_attrib
623 GLenum PerspectiveCorrection
;
626 GLenum PolygonSmooth
;
628 GLenum TextureCompression
; /**< GL_ARB_texture_compression */
629 GLenum GenerateMipmap
; /**< GL_SGIS_generate_mipmap */
630 GLenum FragmentShaderDerivative
; /**< GL_ARB_fragment_shader */
635 * Lighting attribute group (GL_LIGHT_BIT).
637 struct gl_light_attrib
639 struct gl_light Light
[MAX_LIGHTS
]; /**< Array of light sources */
640 struct gl_lightmodel Model
; /**< Lighting model */
643 * Front and back material values.
644 * Note: must call FLUSH_VERTICES() before using.
646 struct gl_material Material
;
648 GLboolean Enabled
; /**< Lighting enabled flag */
649 GLboolean ColorMaterialEnabled
;
651 GLenum ShadeModel
; /**< GL_FLAT or GL_SMOOTH */
652 GLenum ProvokingVertex
; /**< GL_EXT_provoking_vertex */
653 GLenum ColorMaterialFace
; /**< GL_FRONT, BACK or FRONT_AND_BACK */
654 GLenum ColorMaterialMode
; /**< GL_AMBIENT, GL_DIFFUSE, etc */
655 GLbitfield _ColorMaterialBitmask
; /**< bitmask formed from Face and Mode */
658 GLboolean _ClampVertexColor
;
659 GLenum ClampVertexColor
; /**< GL_TRUE, GL_FALSE, GL_FIXED_ONLY */
662 * Derived state for optimizations:
665 GLbitfield _EnabledLights
; /**< bitmask containing enabled lights */
667 GLboolean _NeedEyeCoords
;
668 GLboolean _NeedVertices
; /**< Use fast shader? */
670 GLfloat _BaseColor
[2][3];
676 * Line attribute group (GL_LINE_BIT).
678 struct gl_line_attrib
680 GLboolean SmoothFlag
; /**< GL_LINE_SMOOTH enabled? */
681 GLboolean StippleFlag
; /**< GL_LINE_STIPPLE enabled? */
682 GLushort StipplePattern
; /**< Stipple pattern */
683 GLint StippleFactor
; /**< Stipple repeat factor */
684 GLfloat Width
; /**< Line width */
689 * Display list attribute group (GL_LIST_BIT).
691 struct gl_list_attrib
698 * Multisample attribute group (GL_MULTISAMPLE_BIT).
700 struct gl_multisample_attrib
703 GLboolean SampleAlphaToCoverage
;
704 GLboolean SampleAlphaToOne
;
705 GLboolean SampleCoverage
;
706 GLboolean SampleCoverageInvert
;
707 GLboolean SampleShading
;
709 /* ARB_texture_multisample / GL3.2 additions */
710 GLboolean SampleMask
;
712 GLfloat SampleCoverageValue
; /**< In range [0, 1] */
713 GLfloat MinSampleShadingValue
; /**< In range [0, 1] */
715 /** The GL spec defines this as an array but >32x MSAA is madness */
716 GLbitfield SampleMaskValue
;
721 * A pixelmap (see glPixelMap)
726 GLfloat Map
[MAX_PIXEL_MAP_TABLE
];
731 * Collection of all pixelmaps
735 struct gl_pixelmap RtoR
; /**< i.e. GL_PIXEL_MAP_R_TO_R */
736 struct gl_pixelmap GtoG
;
737 struct gl_pixelmap BtoB
;
738 struct gl_pixelmap AtoA
;
739 struct gl_pixelmap ItoR
;
740 struct gl_pixelmap ItoG
;
741 struct gl_pixelmap ItoB
;
742 struct gl_pixelmap ItoA
;
743 struct gl_pixelmap ItoI
;
744 struct gl_pixelmap StoS
;
749 * Pixel attribute group (GL_PIXEL_MODE_BIT).
751 struct gl_pixel_attrib
753 GLenum ReadBuffer
; /**< source buffer for glRead/CopyPixels() */
755 /*--- Begin Pixel Transfer State ---*/
756 /* Fields are in the order in which they're applied... */
758 /** Scale & Bias (index shift, offset) */
760 GLfloat RedBias
, RedScale
;
761 GLfloat GreenBias
, GreenScale
;
762 GLfloat BlueBias
, BlueScale
;
763 GLfloat AlphaBias
, AlphaScale
;
764 GLfloat DepthBias
, DepthScale
;
765 GLint IndexShift
, IndexOffset
;
769 /* Note: actual pixel maps are not part of this attrib group */
770 GLboolean MapColorFlag
;
771 GLboolean MapStencilFlag
;
773 /*--- End Pixel Transfer State ---*/
776 GLfloat ZoomX
, ZoomY
;
781 * Point attribute group (GL_POINT_BIT).
783 struct gl_point_attrib
785 GLfloat Size
; /**< User-specified point size */
786 GLfloat Params
[3]; /**< GL_EXT_point_parameters */
787 GLfloat MinSize
, MaxSize
; /**< GL_EXT_point_parameters */
788 GLfloat Threshold
; /**< GL_EXT_point_parameters */
789 GLboolean SmoothFlag
; /**< True if GL_POINT_SMOOTH is enabled */
790 GLboolean _Attenuated
; /**< True if Params != [1, 0, 0] */
791 GLboolean PointSprite
; /**< GL_NV/ARB_point_sprite */
792 GLbitfield CoordReplace
; /**< GL_ARB_point_sprite*/
793 GLenum SpriteRMode
; /**< GL_NV_point_sprite (only!) */
794 GLenum SpriteOrigin
; /**< GL_ARB_point_sprite */
799 * Polygon attribute group (GL_POLYGON_BIT).
801 struct gl_polygon_attrib
803 GLenum FrontFace
; /**< Either GL_CW or GL_CCW */
804 GLenum FrontMode
; /**< Either GL_POINT, GL_LINE or GL_FILL */
805 GLenum BackMode
; /**< Either GL_POINT, GL_LINE or GL_FILL */
806 GLboolean CullFlag
; /**< Culling on/off flag */
807 GLboolean SmoothFlag
; /**< True if GL_POLYGON_SMOOTH is enabled */
808 GLboolean StippleFlag
; /**< True if GL_POLYGON_STIPPLE is enabled */
809 GLenum CullFaceMode
; /**< Culling mode GL_FRONT or GL_BACK */
810 GLfloat OffsetFactor
; /**< Polygon offset factor, from user */
811 GLfloat OffsetUnits
; /**< Polygon offset units, from user */
812 GLfloat OffsetClamp
; /**< Polygon offset clamp, from user */
813 GLboolean OffsetPoint
; /**< Offset in GL_POINT mode */
814 GLboolean OffsetLine
; /**< Offset in GL_LINE mode */
815 GLboolean OffsetFill
; /**< Offset in GL_FILL mode */
820 * Scissor attributes (GL_SCISSOR_BIT).
822 struct gl_scissor_rect
824 GLint X
, Y
; /**< Lower left corner of box */
825 GLsizei Width
, Height
; /**< Size of box */
827 struct gl_scissor_attrib
829 GLbitfield EnableFlags
; /**< Scissor test enabled? */
830 struct gl_scissor_rect ScissorArray
[MAX_VIEWPORTS
];
831 GLint NumWindowRects
; /**< Count of enabled window rectangles */
832 GLenum WindowRectMode
; /**< Whether to include or exclude the rects */
833 struct gl_scissor_rect WindowRects
[MAX_WINDOW_RECTANGLES
];
838 * Stencil attribute group (GL_STENCIL_BUFFER_BIT).
840 * Three sets of stencil data are tracked so that OpenGL 2.0,
841 * GL_EXT_stencil_two_side, and GL_ATI_separate_stencil can all be supported
842 * simultaneously. In each of the stencil state arrays, element 0 corresponds
843 * to GL_FRONT. Element 1 corresponds to the OpenGL 2.0 /
844 * GL_ATI_separate_stencil GL_BACK state. Element 2 corresponds to the
845 * GL_EXT_stencil_two_side GL_BACK state.
847 * The derived value \c _BackFace is either 1 or 2 depending on whether or
848 * not GL_STENCIL_TEST_TWO_SIDE_EXT is enabled.
850 * The derived value \c _TestTwoSide is set when the front-face and back-face
851 * stencil state are different.
853 struct gl_stencil_attrib
855 GLboolean Enabled
; /**< Enabled flag */
856 GLboolean TestTwoSide
; /**< GL_EXT_stencil_two_side */
857 GLubyte ActiveFace
; /**< GL_EXT_stencil_two_side (0 or 2) */
858 GLubyte _BackFace
; /**< Current back stencil state (1 or 2) */
859 GLenum Function
[3]; /**< Stencil function */
860 GLenum FailFunc
[3]; /**< Fail function */
861 GLenum ZPassFunc
[3]; /**< Depth buffer pass function */
862 GLenum ZFailFunc
[3]; /**< Depth buffer fail function */
863 GLint Ref
[3]; /**< Reference value */
864 GLuint ValueMask
[3]; /**< Value mask */
865 GLuint WriteMask
[3]; /**< Write mask */
866 GLuint Clear
; /**< Clear value */
871 * An index for each type of texture object. These correspond to the GL
872 * texture target enums, such as GL_TEXTURE_2D, GL_TEXTURE_CUBE_MAP, etc.
873 * Note: the order is from highest priority to lowest priority.
877 TEXTURE_2D_MULTISAMPLE_INDEX
,
878 TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX
,
879 TEXTURE_CUBE_ARRAY_INDEX
,
880 TEXTURE_BUFFER_INDEX
,
881 TEXTURE_2D_ARRAY_INDEX
,
882 TEXTURE_1D_ARRAY_INDEX
,
883 TEXTURE_EXTERNAL_INDEX
,
894 * Bit flags for each type of texture object
897 #define TEXTURE_2D_MULTISAMPLE_BIT (1 << TEXTURE_2D_MULTISAMPLE_INDEX)
898 #define TEXTURE_2D_MULTISAMPLE_ARRAY_BIT (1 << TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX)
899 #define TEXTURE_CUBE_ARRAY_BIT (1 << TEXTURE_CUBE_ARRAY_INDEX)
900 #define TEXTURE_BUFFER_BIT (1 << TEXTURE_BUFFER_INDEX)
901 #define TEXTURE_2D_ARRAY_BIT (1 << TEXTURE_2D_ARRAY_INDEX)
902 #define TEXTURE_1D_ARRAY_BIT (1 << TEXTURE_1D_ARRAY_INDEX)
903 #define TEXTURE_EXTERNAL_BIT (1 << TEXTURE_EXTERNAL_INDEX)
904 #define TEXTURE_CUBE_BIT (1 << TEXTURE_CUBE_INDEX)
905 #define TEXTURE_3D_BIT (1 << TEXTURE_3D_INDEX)
906 #define TEXTURE_RECT_BIT (1 << TEXTURE_RECT_INDEX)
907 #define TEXTURE_2D_BIT (1 << TEXTURE_2D_INDEX)
908 #define TEXTURE_1D_BIT (1 << TEXTURE_1D_INDEX)
913 * Texture image state. Drivers will typically create a subclass of this
914 * with extra fields for memory buffers, etc.
916 struct gl_texture_image
918 GLint InternalFormat
; /**< Internal format as given by the user */
919 GLenum _BaseFormat
; /**< Either GL_RGB, GL_RGBA, GL_ALPHA,
920 * GL_LUMINANCE, GL_LUMINANCE_ALPHA,
921 * GL_INTENSITY, GL_DEPTH_COMPONENT or
922 * GL_DEPTH_STENCIL_EXT only. Used for
923 * choosing TexEnv arithmetic.
925 mesa_format TexFormat
; /**< The actual texture memory format */
927 GLuint Border
; /**< 0 or 1 */
928 GLuint Width
; /**< = 2^WidthLog2 + 2*Border */
929 GLuint Height
; /**< = 2^HeightLog2 + 2*Border */
930 GLuint Depth
; /**< = 2^DepthLog2 + 2*Border */
931 GLuint Width2
; /**< = Width - 2*Border */
932 GLuint Height2
; /**< = Height - 2*Border */
933 GLuint Depth2
; /**< = Depth - 2*Border */
934 GLuint WidthLog2
; /**< = log2(Width2) */
935 GLuint HeightLog2
; /**< = log2(Height2) */
936 GLuint DepthLog2
; /**< = log2(Depth2) */
937 GLuint MaxNumLevels
; /**< = maximum possible number of mipmap
938 levels, computed from the dimensions */
940 struct gl_texture_object
*TexObject
; /**< Pointer back to parent object */
941 GLuint Level
; /**< Which mipmap level am I? */
942 /** Cube map face: index into gl_texture_object::Image[] array */
945 /** GL_ARB_texture_multisample */
946 GLuint NumSamples
; /**< Sample count, or 0 for non-multisample */
947 GLboolean FixedSampleLocations
; /**< Same sample locations for all pixels? */
952 * Indexes for cube map faces.
967 * Sampler object state. These objects are new with GL_ARB_sampler_objects
968 * and OpenGL 3.3. Legacy texture objects also contain a sampler object.
970 struct gl_sampler_object
975 GLchar
*Label
; /**< GL_KHR_debug */
977 GLenum WrapS
; /**< S-axis texture image wrap mode */
978 GLenum WrapT
; /**< T-axis texture image wrap mode */
979 GLenum WrapR
; /**< R-axis texture image wrap mode */
980 GLenum MinFilter
; /**< minification filter */
981 GLenum MagFilter
; /**< magnification filter */
982 union gl_color_union BorderColor
; /**< Interpreted according to texture format */
983 GLfloat MinLod
; /**< min lambda, OpenGL 1.2 */
984 GLfloat MaxLod
; /**< max lambda, OpenGL 1.2 */
985 GLfloat LodBias
; /**< OpenGL 1.4 */
986 GLfloat MaxAnisotropy
; /**< GL_EXT_texture_filter_anisotropic */
987 GLenum CompareMode
; /**< GL_ARB_shadow */
988 GLenum CompareFunc
; /**< GL_ARB_shadow */
989 GLenum sRGBDecode
; /**< GL_DECODE_EXT or GL_SKIP_DECODE_EXT */
990 GLboolean CubeMapSeamless
; /**< GL_AMD_seamless_cubemap_per_texture */
992 /** GL_ARB_bindless_texture */
993 bool HandleAllocated
;
994 struct util_dynarray Handles
;
999 * Texture object state. Contains the array of mipmap images, border color,
1000 * wrap modes, filter modes, and shadow/texcompare state.
1002 struct gl_texture_object
1004 mtx_t Mutex
; /**< for thread safety */
1005 GLint RefCount
; /**< reference count */
1006 GLuint Name
; /**< the user-visible texture object ID */
1007 GLchar
*Label
; /**< GL_KHR_debug */
1008 GLenum Target
; /**< GL_TEXTURE_1D, GL_TEXTURE_2D, etc. */
1009 gl_texture_index TargetIndex
; /**< The gl_texture_unit::CurrentTex index.
1010 Only valid when Target is valid. */
1012 struct gl_sampler_object Sampler
;
1014 GLenum DepthMode
; /**< GL_ARB_depth_texture */
1016 GLfloat Priority
; /**< in [0,1] */
1017 GLint BaseLevel
; /**< min mipmap level, OpenGL 1.2 */
1018 GLint MaxLevel
; /**< max mipmap level, OpenGL 1.2 */
1019 GLint ImmutableLevels
; /**< ES 3.0 / ARB_texture_view */
1020 GLint _MaxLevel
; /**< actual max mipmap level (q in the spec) */
1021 GLfloat _MaxLambda
; /**< = _MaxLevel - BaseLevel (q - p in spec) */
1022 GLint CropRect
[4]; /**< GL_OES_draw_texture */
1023 GLenum Swizzle
[4]; /**< GL_EXT_texture_swizzle */
1024 GLuint _Swizzle
; /**< same as Swizzle, but SWIZZLE_* format */
1025 GLboolean GenerateMipmap
; /**< GL_SGIS_generate_mipmap */
1026 GLboolean _BaseComplete
; /**< Is the base texture level valid? */
1027 GLboolean _MipmapComplete
; /**< Is the whole mipmap valid? */
1028 GLboolean _IsIntegerFormat
; /**< Does the texture store integer values? */
1029 GLboolean _RenderToTexture
; /**< Any rendering to this texture? */
1030 GLboolean Purgeable
; /**< Is the buffer purgeable under memory
1032 GLboolean Immutable
; /**< GL_ARB_texture_storage */
1033 GLboolean _IsFloat
; /**< GL_OES_float_texture */
1034 GLboolean _IsHalfFloat
; /**< GL_OES_half_float_texture */
1035 bool StencilSampling
; /**< Should we sample stencil instead of depth? */
1036 bool HandleAllocated
; /**< GL_ARB_bindless_texture */
1038 GLuint MinLevel
; /**< GL_ARB_texture_view */
1039 GLuint MinLayer
; /**< GL_ARB_texture_view */
1040 GLuint NumLevels
; /**< GL_ARB_texture_view */
1041 GLuint NumLayers
; /**< GL_ARB_texture_view */
1043 /** GL_EXT_memory_object */
1044 GLenum TextureTiling
;
1046 /** Actual texture images, indexed by [cube face] and [mipmap level] */
1047 struct gl_texture_image
*Image
[MAX_FACES
][MAX_TEXTURE_LEVELS
];
1049 /** GL_ARB_texture_buffer_object */
1050 struct gl_buffer_object
*BufferObject
;
1051 GLenum BufferObjectFormat
;
1052 /** Equivalent Mesa format for BufferObjectFormat. */
1053 mesa_format _BufferObjectFormat
;
1054 /** GL_ARB_texture_buffer_range */
1055 GLintptr BufferOffset
;
1056 GLsizeiptr BufferSize
; /**< if this is -1, use BufferObject->Size instead */
1058 /** GL_OES_EGL_image_external */
1059 GLint RequiredTextureImageUnits
;
1061 /** GL_ARB_shader_image_load_store */
1062 GLenum ImageFormatCompatibilityType
;
1064 /** GL_ARB_bindless_texture */
1065 struct util_dynarray SamplerHandles
;
1066 struct util_dynarray ImageHandles
;
1070 /** Up to four combiner sources are possible with GL_NV_texture_env_combine4 */
1071 #define MAX_COMBINER_TERMS 4
1075 * Texture combine environment state.
1077 struct gl_tex_env_combine_state
1079 GLenum ModeRGB
; /**< GL_REPLACE, GL_DECAL, GL_ADD, etc. */
1080 GLenum ModeA
; /**< GL_REPLACE, GL_DECAL, GL_ADD, etc. */
1081 /** Source terms: GL_PRIMARY_COLOR, GL_TEXTURE, etc */
1082 GLenum SourceRGB
[MAX_COMBINER_TERMS
];
1083 GLenum SourceA
[MAX_COMBINER_TERMS
];
1084 /** Source operands: GL_SRC_COLOR, GL_ONE_MINUS_SRC_COLOR, etc */
1085 GLenum OperandRGB
[MAX_COMBINER_TERMS
];
1086 GLenum OperandA
[MAX_COMBINER_TERMS
];
1087 GLuint ScaleShiftRGB
; /**< 0, 1 or 2 */
1088 GLuint ScaleShiftA
; /**< 0, 1 or 2 */
1089 GLuint _NumArgsRGB
; /**< Number of inputs used for the RGB combiner */
1090 GLuint _NumArgsA
; /**< Number of inputs used for the A combiner */
1094 /** Compressed TexEnv effective Combine mode */
1095 enum gl_tex_env_mode
1097 TEXENV_MODE_REPLACE
, /* r = a0 */
1098 TEXENV_MODE_MODULATE
, /* r = a0 * a1 */
1099 TEXENV_MODE_ADD
, /* r = a0 + a1 */
1100 TEXENV_MODE_ADD_SIGNED
, /* r = a0 + a1 - 0.5 */
1101 TEXENV_MODE_INTERPOLATE
, /* r = a0 * a2 + a1 * (1 - a2) */
1102 TEXENV_MODE_SUBTRACT
, /* r = a0 - a1 */
1103 TEXENV_MODE_DOT3_RGB
, /* r = a0 . a1 */
1104 TEXENV_MODE_DOT3_RGB_EXT
, /* r = a0 . a1 */
1105 TEXENV_MODE_DOT3_RGBA
, /* r = a0 . a1 */
1106 TEXENV_MODE_DOT3_RGBA_EXT
, /* r = a0 . a1 */
1107 TEXENV_MODE_MODULATE_ADD_ATI
, /* r = a0 * a2 + a1 */
1108 TEXENV_MODE_MODULATE_SIGNED_ADD_ATI
, /* r = a0 * a2 + a1 - 0.5 */
1109 TEXENV_MODE_MODULATE_SUBTRACT_ATI
, /* r = a0 * a2 - a1 */
1110 TEXENV_MODE_ADD_PRODUCTS_NV
, /* r = a0 * a1 + a2 * a3 */
1111 TEXENV_MODE_ADD_PRODUCTS_SIGNED_NV
, /* r = a0 * a1 + a2 * a3 - 0.5 */
1115 /** Compressed TexEnv Combine source */
1116 enum gl_tex_env_source
1118 TEXENV_SRC_TEXTURE0
,
1119 TEXENV_SRC_TEXTURE1
,
1120 TEXENV_SRC_TEXTURE2
,
1121 TEXENV_SRC_TEXTURE3
,
1122 TEXENV_SRC_TEXTURE4
,
1123 TEXENV_SRC_TEXTURE5
,
1124 TEXENV_SRC_TEXTURE6
,
1125 TEXENV_SRC_TEXTURE7
,
1127 TEXENV_SRC_PREVIOUS
,
1128 TEXENV_SRC_PRIMARY_COLOR
,
1129 TEXENV_SRC_CONSTANT
,
1135 /** Compressed TexEnv Combine operand */
1136 enum gl_tex_env_operand
1139 TEXENV_OPR_ONE_MINUS_COLOR
,
1141 TEXENV_OPR_ONE_MINUS_ALPHA
,
1145 /** Compressed TexEnv Combine argument */
1146 struct gl_tex_env_argument
1149 __extension__
uint8_t Source
:4; /**< TEXENV_SRC_x */
1150 __extension__
uint8_t Operand
:2; /**< TEXENV_OPR_x */
1152 uint8_t Source
; /**< SRC_x */
1153 uint8_t Operand
; /**< OPR_x */
1159 * Compressed TexEnv Combine state.
1161 struct gl_tex_env_combine_packed
1163 uint32_t ModeRGB
:4; /**< Effective mode for RGB as 4 bits */
1164 uint32_t ModeA
:4; /**< Effective mode for RGB as 4 bits */
1165 uint32_t ScaleShiftRGB
:2; /**< 0, 1 or 2 */
1166 uint32_t ScaleShiftA
:2; /**< 0, 1 or 2 */
1167 uint32_t NumArgsRGB
:3; /**< Number of inputs used for the RGB combiner */
1168 uint32_t NumArgsA
:3; /**< Number of inputs used for the A combiner */
1169 /** Source arguments in a packed manner */
1170 struct gl_tex_env_argument ArgsRGB
[MAX_COMBINER_TERMS
];
1171 struct gl_tex_env_argument ArgsA
[MAX_COMBINER_TERMS
];
1176 * TexGenEnabled flags.
1183 #define STR_BITS (S_BIT | T_BIT | R_BIT)
1188 * Bit flag versions of the corresponding GL_ constants.
1191 #define TEXGEN_SPHERE_MAP 0x1
1192 #define TEXGEN_OBJ_LINEAR 0x2
1193 #define TEXGEN_EYE_LINEAR 0x4
1194 #define TEXGEN_REFLECTION_MAP_NV 0x8
1195 #define TEXGEN_NORMAL_MAP_NV 0x10
1197 #define TEXGEN_NEED_NORMALS (TEXGEN_SPHERE_MAP | \
1198 TEXGEN_REFLECTION_MAP_NV | \
1199 TEXGEN_NORMAL_MAP_NV)
1200 #define TEXGEN_NEED_EYE_COORD (TEXGEN_SPHERE_MAP | \
1201 TEXGEN_REFLECTION_MAP_NV | \
1202 TEXGEN_NORMAL_MAP_NV | \
1208 /** Tex-gen enabled for texture unit? */
1209 #define ENABLE_TEXGEN(unit) (1 << (unit))
1211 /** Non-identity texture matrix for texture unit? */
1212 #define ENABLE_TEXMAT(unit) (1 << (unit))
1216 * Texture coord generation state.
1220 GLenum Mode
; /**< GL_EYE_LINEAR, GL_SPHERE_MAP, etc */
1221 GLbitfield _ModeBit
; /**< TEXGEN_x bit corresponding to Mode */
1222 GLfloat ObjectPlane
[4];
1223 GLfloat EyePlane
[4];
1228 * Texture unit state. Contains enable flags, texture environment/function/
1229 * combiners, texgen state, and pointers to current texture objects.
1231 struct gl_texture_unit
1233 GLbitfield Enabled
; /**< bitmask of TEXTURE_*_BIT flags */
1235 GLenum EnvMode
; /**< GL_MODULATE, GL_DECAL, GL_BLEND, etc. */
1236 GLclampf EnvColor
[4];
1237 GLfloat EnvColorUnclamped
[4];
1239 struct gl_texgen GenS
;
1240 struct gl_texgen GenT
;
1241 struct gl_texgen GenR
;
1242 struct gl_texgen GenQ
;
1243 GLbitfield TexGenEnabled
; /**< Bitwise-OR of [STRQ]_BIT values */
1244 GLbitfield _GenFlags
; /**< Bitwise-OR of Gen[STRQ]._ModeBit */
1246 GLfloat LodBias
; /**< for biasing mipmap levels */
1248 /** Texture targets that have a non-default texture bound */
1249 GLbitfield _BoundTextures
;
1251 /** Current sampler object (GL_ARB_sampler_objects) */
1252 struct gl_sampler_object
*Sampler
;
1255 * \name GL_EXT_texture_env_combine
1257 struct gl_tex_env_combine_state Combine
;
1260 * Derived state based on \c EnvMode and the \c BaseFormat of the
1261 * currently enabled texture.
1263 struct gl_tex_env_combine_state _EnvMode
;
1266 * Currently enabled combiner state. This will point to either
1267 * \c Combine or \c _EnvMode.
1269 struct gl_tex_env_combine_state
*_CurrentCombine
;
1271 /** Current texture object pointers */
1272 struct gl_texture_object
*CurrentTex
[NUM_TEXTURE_TARGETS
];
1274 /** Points to highest priority, complete and enabled texture object */
1275 struct gl_texture_object
*_Current
;
1277 /** Current compressed TexEnv & Combine state */
1278 struct gl_tex_env_combine_packed _CurrentCombinePacked
;
1283 * Texture attribute group (GL_TEXTURE_BIT).
1285 struct gl_texture_attrib
1287 GLuint CurrentUnit
; /**< GL_ACTIVE_TEXTURE */
1289 /** GL_ARB_seamless_cubemap */
1290 GLboolean CubeMapSeamless
;
1292 struct gl_texture_object
*ProxyTex
[NUM_TEXTURE_TARGETS
];
1294 /** GL_ARB_texture_buffer_object */
1295 struct gl_buffer_object
*BufferObject
;
1297 /** Texture coord units/sets used for fragment texturing */
1298 GLbitfield _EnabledCoordUnits
;
1300 /** Texture coord units that have texgen enabled */
1301 GLbitfield _TexGenEnabled
;
1303 /** Texture coord units that have non-identity matrices */
1304 GLbitfield _TexMatEnabled
;
1306 /** Bitwise-OR of all Texture.Unit[i]._GenFlags */
1307 GLbitfield _GenFlags
;
1309 /** Largest index of a texture unit with _Current != NULL. */
1310 GLint _MaxEnabledTexImageUnit
;
1312 /** Largest index + 1 of texture units that have had any CurrentTex set. */
1313 GLint NumCurrentTexUsed
;
1315 struct gl_texture_unit Unit
[MAX_COMBINED_TEXTURE_IMAGE_UNITS
];
1320 * Data structure representing a single clip plane (e.g. one of the elements
1321 * of the ctx->Transform.EyeUserPlane or ctx->Transform._ClipUserPlane array).
1323 typedef GLfloat gl_clip_plane
[4];
1327 * Transformation attribute group (GL_TRANSFORM_BIT).
1329 struct gl_transform_attrib
1331 GLenum MatrixMode
; /**< Matrix mode */
1332 gl_clip_plane EyeUserPlane
[MAX_CLIP_PLANES
]; /**< User clip planes */
1333 gl_clip_plane _ClipUserPlane
[MAX_CLIP_PLANES
]; /**< derived */
1334 GLbitfield ClipPlanesEnabled
; /**< on/off bitmask */
1335 GLboolean Normalize
; /**< Normalize all normals? */
1336 GLboolean RescaleNormals
; /**< GL_EXT_rescale_normal */
1337 GLboolean RasterPositionUnclipped
; /**< GL_IBM_rasterpos_clip */
1338 GLboolean DepthClamp
; /**< GL_ARB_depth_clamp */
1339 /** GL_ARB_clip_control */
1340 GLenum ClipOrigin
; /**< GL_LOWER_LEFT or GL_UPPER_LEFT */
1341 GLenum ClipDepthMode
; /**< GL_NEGATIVE_ONE_TO_ONE or GL_ZERO_TO_ONE */
1346 * Viewport attribute group (GL_VIEWPORT_BIT).
1348 struct gl_viewport_attrib
1350 GLfloat X
, Y
; /**< position */
1351 GLfloat Width
, Height
; /**< size */
1352 GLdouble Near
, Far
; /**< Depth buffer range */
1361 } gl_map_buffer_index
;
1365 * Fields describing a mapped buffer range.
1367 struct gl_buffer_mapping
{
1368 GLbitfield AccessFlags
; /**< Mask of GL_MAP_x_BIT flags */
1369 GLvoid
*Pointer
; /**< User-space address of mapping */
1370 GLintptr Offset
; /**< Mapped offset */
1371 GLsizeiptr Length
; /**< Mapped length */
1376 * Usages we've seen for a buffer object.
1379 USAGE_UNIFORM_BUFFER
= 0x1,
1380 USAGE_TEXTURE_BUFFER
= 0x2,
1381 USAGE_ATOMIC_COUNTER_BUFFER
= 0x4,
1382 USAGE_SHADER_STORAGE_BUFFER
= 0x8,
1383 USAGE_TRANSFORM_FEEDBACK_BUFFER
= 0x10,
1384 USAGE_PIXEL_PACK_BUFFER
= 0x20,
1385 USAGE_DISABLE_MINMAX_CACHE
= 0x40,
1390 * GL_ARB_vertex/pixel_buffer_object buffer object
1392 struct gl_buffer_object
1397 GLchar
*Label
; /**< GL_KHR_debug */
1398 GLenum Usage
; /**< GL_STREAM_DRAW_ARB, GL_STREAM_READ_ARB, etc. */
1399 GLbitfield StorageFlags
; /**< GL_MAP_PERSISTENT_BIT, etc. */
1400 GLsizeiptrARB Size
; /**< Size of buffer storage in bytes */
1401 GLubyte
*Data
; /**< Location of storage either in RAM or VRAM. */
1402 GLboolean DeletePending
; /**< true if buffer object is removed from the hash */
1403 GLboolean Written
; /**< Ever written to? (for debugging) */
1404 GLboolean Purgeable
; /**< Is the buffer purgeable under memory pressure? */
1405 GLboolean Immutable
; /**< GL_ARB_buffer_storage */
1406 gl_buffer_usage UsageHistory
; /**< How has this buffer been used so far? */
1408 /** Counters used for buffer usage warnings */
1409 GLuint NumSubDataCalls
;
1410 GLuint NumMapBufferWriteCalls
;
1412 struct gl_buffer_mapping Mappings
[MAP_COUNT
];
1414 /** Memoization of min/max index computations for static index buffers */
1415 struct hash_table
*MinMaxCache
;
1416 unsigned MinMaxCacheHitIndices
;
1417 unsigned MinMaxCacheMissIndices
;
1418 bool MinMaxCacheDirty
;
1420 bool HandleAllocated
; /**< GL_ARB_bindless_texture */
1425 * Client pixel packing/unpacking attributes
1427 struct gl_pixelstore_attrib
1435 GLboolean SwapBytes
;
1437 GLboolean Invert
; /**< GL_MESA_pack_invert */
1438 GLint CompressedBlockWidth
; /**< GL_ARB_compressed_texture_pixel_storage */
1439 GLint CompressedBlockHeight
;
1440 GLint CompressedBlockDepth
;
1441 GLint CompressedBlockSize
;
1442 struct gl_buffer_object
*BufferObj
; /**< GL_ARB_pixel_buffer_object */
1447 * Vertex array information which is derived from gl_array_attributes
1448 * and gl_vertex_buffer_binding information. Used by the VBO module and
1451 struct gl_vertex_array
1453 GLint Size
; /**< components per element (1,2,3,4) */
1454 GLenum Type
; /**< datatype: GL_FLOAT, GL_INT, etc */
1455 GLenum Format
; /**< default: GL_RGBA, but may be GL_BGRA */
1456 GLsizei StrideB
; /**< actual stride in bytes */
1457 GLuint _ElementSize
; /**< size of each element in bytes */
1458 const GLubyte
*Ptr
; /**< Points to array data */
1459 GLboolean Normalized
; /**< GL_ARB_vertex_program */
1460 GLboolean Integer
; /**< Integer-valued? */
1461 GLboolean Doubles
; /**< double precision values are not converted to floats */
1462 GLuint InstanceDivisor
; /**< GL_ARB_instanced_arrays */
1464 struct gl_buffer_object
*BufferObj
;/**< GL_ARB_vertex_buffer_object */
1469 * Attributes to describe a vertex array.
1471 * Contains the size, type, format and normalization flag,
1472 * along with the index of a vertex buffer binding point.
1474 * Note that the Stride field corresponds to VERTEX_ATTRIB_ARRAY_STRIDE
1475 * and is only present for backwards compatibility reasons.
1476 * Rendering always uses VERTEX_BINDING_STRIDE.
1477 * The gl*Pointer() functions will set VERTEX_ATTRIB_ARRAY_STRIDE
1478 * and VERTEX_BINDING_STRIDE to the same value, while
1479 * glBindVertexBuffer() will only set VERTEX_BINDING_STRIDE.
1481 struct gl_array_attributes
1483 GLint Size
; /**< Components per element (1,2,3,4) */
1484 GLenum Type
; /**< Datatype: GL_FLOAT, GL_INT, etc */
1485 GLenum Format
; /**< Default: GL_RGBA, but may be GL_BGRA */
1486 GLsizei Stride
; /**< Stride as specified with gl*Pointer() */
1487 const GLubyte
*Ptr
; /**< Points to client array data. Not used when a VBO is bound */
1488 GLintptr RelativeOffset
; /**< Offset of the first element relative to the binding offset */
1489 GLboolean Enabled
; /**< Whether the array is enabled */
1490 GLboolean Normalized
; /**< Fixed-point values are normalized when converted to floats */
1491 GLboolean Integer
; /**< Fixed-point values are not converted to floats */
1492 GLboolean Doubles
; /**< double precision values are not converted to floats */
1493 GLuint _ElementSize
; /**< Size of each element in bytes */
1494 GLuint BufferBindingIndex
; /**< Vertex buffer binding */
1499 * This describes the buffer object used for a vertex array (or
1500 * multiple vertex arrays). If BufferObj points to the default/null
1501 * buffer object, then the vertex array lives in user memory and not a VBO.
1503 struct gl_vertex_buffer_binding
1505 GLintptr Offset
; /**< User-specified offset */
1506 GLsizei Stride
; /**< User-specified stride */
1507 GLuint InstanceDivisor
; /**< GL_ARB_instanced_arrays */
1508 struct gl_buffer_object
*BufferObj
; /**< GL_ARB_vertex_buffer_object */
1509 GLbitfield64 _BoundArrays
; /**< Arrays bound to this binding point */
1514 * A representation of "Vertex Array Objects" (VAOs) from OpenGL 3.1+ /
1515 * the GL_ARB_vertex_array_object extension.
1517 struct gl_vertex_array_object
1519 /** Name of the VAO as received from glGenVertexArray. */
1524 GLchar
*Label
; /**< GL_KHR_debug */
1527 * Has this array object been bound?
1529 GLboolean EverBound
;
1532 * Derived vertex attribute arrays
1534 * This is a legacy data structure created from gl_vertex_attrib_array and
1535 * gl_vertex_buffer_binding, for compatibility with existing driver code.
1537 struct gl_vertex_array _VertexAttrib
[VERT_ATTRIB_MAX
];
1539 /** Vertex attribute arrays */
1540 struct gl_array_attributes VertexAttrib
[VERT_ATTRIB_MAX
];
1542 /** Vertex buffer bindings */
1543 struct gl_vertex_buffer_binding BufferBinding
[VERT_ATTRIB_MAX
];
1545 /** Mask indicating which vertex arrays have vertex buffer associated. */
1546 GLbitfield64 VertexAttribBufferMask
;
1548 /** Mask of VERT_BIT_* values indicating which arrays are enabled */
1549 GLbitfield64 _Enabled
;
1551 /** Mask of VERT_BIT_* values indicating changed/dirty arrays */
1552 GLbitfield64 NewArrays
;
1554 /** The index buffer (also known as the element array buffer in OpenGL). */
1555 struct gl_buffer_object
*IndexBufferObj
;
1559 /** Used to signal when transitioning from one kind of drawing method
1563 DRAW_NONE
, /**< Initial value only */
1570 * Enum for the OpenGL APIs we know about and may support.
1572 * NOTE: This must match the api_enum table in
1573 * src/mesa/main/get_hash_generator.py
1577 API_OPENGL_COMPAT
, /* legacy / compatibility contexts */
1581 API_OPENGL_LAST
= API_OPENGL_CORE
1585 * Vertex array state
1587 struct gl_array_attrib
1589 /** Currently bound array object. */
1590 struct gl_vertex_array_object
*VAO
;
1592 /** The default vertex array object */
1593 struct gl_vertex_array_object
*DefaultVAO
;
1595 /** The last VAO accessed by a DSA function */
1596 struct gl_vertex_array_object
*LastLookedUpVAO
;
1598 /** Array objects (GL_ARB_vertex_array_object) */
1599 struct _mesa_HashTable
*Objects
;
1601 GLint ActiveTexture
; /**< Client Active Texture */
1602 GLuint LockFirst
; /**< GL_EXT_compiled_vertex_array */
1603 GLuint LockCount
; /**< GL_EXT_compiled_vertex_array */
1606 * \name Primitive restart controls
1608 * Primitive restart is enabled if either \c PrimitiveRestart or
1609 * \c PrimitiveRestartFixedIndex is set.
1612 GLboolean PrimitiveRestart
;
1613 GLboolean PrimitiveRestartFixedIndex
;
1614 GLboolean _PrimitiveRestart
;
1615 GLuint RestartIndex
;
1618 /** One of the DRAW_xxx flags, not consumed by drivers */
1619 gl_draw_method DrawMethod
;
1621 /* GL_ARB_vertex_buffer_object */
1622 struct gl_buffer_object
*ArrayBufferObj
;
1625 * Vertex arrays as consumed by a driver.
1626 * The array pointer is set up only by the VBO module.
1628 const struct gl_vertex_array
**_DrawArrays
; /**< 0..VERT_ATTRIB_MAX-1 */
1630 /** Legal array datatypes and the API for which they have been computed */
1631 GLbitfield LegalTypesMask
;
1632 gl_api LegalTypesMaskAPI
;
1637 * Feedback buffer state
1642 GLbitfield _Mask
; /**< FB_* bits */
1650 * Selection buffer state
1654 GLuint
*Buffer
; /**< selection buffer */
1655 GLuint BufferSize
; /**< size of the selection buffer */
1656 GLuint BufferCount
; /**< number of values in the selection buffer */
1657 GLuint Hits
; /**< number of records in the selection buffer */
1658 GLuint NameStackDepth
; /**< name stack depth */
1659 GLuint NameStack
[MAX_NAME_STACK_DEPTH
]; /**< name stack */
1660 GLboolean HitFlag
; /**< hit flag */
1661 GLfloat HitMinZ
; /**< minimum hit depth */
1662 GLfloat HitMaxZ
; /**< maximum hit depth */
1667 * 1-D Evaluator control points
1671 GLuint Order
; /**< Number of control points */
1672 GLfloat u1
, u2
, du
; /**< u1, u2, 1.0/(u2-u1) */
1673 GLfloat
*Points
; /**< Points to contiguous control points */
1678 * 2-D Evaluator control points
1682 GLuint Uorder
; /**< Number of control points in U dimension */
1683 GLuint Vorder
; /**< Number of control points in V dimension */
1686 GLfloat
*Points
; /**< Points to contiguous control points */
1691 * All evaluator control point state
1693 struct gl_evaluators
1699 struct gl_1d_map Map1Vertex3
;
1700 struct gl_1d_map Map1Vertex4
;
1701 struct gl_1d_map Map1Index
;
1702 struct gl_1d_map Map1Color4
;
1703 struct gl_1d_map Map1Normal
;
1704 struct gl_1d_map Map1Texture1
;
1705 struct gl_1d_map Map1Texture2
;
1706 struct gl_1d_map Map1Texture3
;
1707 struct gl_1d_map Map1Texture4
;
1714 struct gl_2d_map Map2Vertex3
;
1715 struct gl_2d_map Map2Vertex4
;
1716 struct gl_2d_map Map2Index
;
1717 struct gl_2d_map Map2Color4
;
1718 struct gl_2d_map Map2Normal
;
1719 struct gl_2d_map Map2Texture1
;
1720 struct gl_2d_map Map2Texture2
;
1721 struct gl_2d_map Map2Texture3
;
1722 struct gl_2d_map Map2Texture4
;
1727 struct gl_transform_feedback_varying_info
1738 * Per-output info vertex shaders for transform feedback.
1740 struct gl_transform_feedback_output
1742 uint32_t OutputRegister
;
1743 uint32_t OutputBuffer
;
1744 uint32_t NumComponents
;
1747 /** offset (in DWORDs) of this output within the interleaved structure */
1751 * Offset into the output register of the data to output. For example,
1752 * if NumComponents is 2 and ComponentOffset is 1, then the data to
1753 * offset is in the y and z components of the output register.
1755 uint32_t ComponentOffset
;
1759 struct gl_transform_feedback_buffer
1763 uint32_t NumVaryings
;
1766 * Total number of components stored in each buffer. This may be used by
1767 * hardware back-ends to determine the correct stride when interleaving
1768 * multiple transform feedback outputs in the same buffer.
1773 * Which transform feedback stream this buffer binding is associated with.
1779 /** Post-link transform feedback info. */
1780 struct gl_transform_feedback_info
1782 unsigned NumOutputs
;
1784 /* Bitmask of active buffer indices. */
1785 unsigned ActiveBuffers
;
1787 struct gl_transform_feedback_output
*Outputs
;
1789 /** Transform feedback varyings used for the linking of this shader program.
1791 * Use for glGetTransformFeedbackVarying().
1793 struct gl_transform_feedback_varying_info
*Varyings
;
1796 struct gl_transform_feedback_buffer Buffers
[MAX_FEEDBACK_BUFFERS
];
1801 * Transform feedback object state
1803 struct gl_transform_feedback_object
1805 GLuint Name
; /**< AKA the object ID */
1807 GLchar
*Label
; /**< GL_KHR_debug */
1808 GLboolean Active
; /**< Is transform feedback enabled? */
1809 GLboolean Paused
; /**< Is transform feedback paused? */
1810 GLboolean EndedAnytime
; /**< Has EndTransformFeedback been called
1812 GLboolean EverBound
; /**< Has this object been bound? */
1815 * GLES: if Active is true, remaining number of primitives which can be
1816 * rendered without overflow. This is necessary to track because GLES
1817 * requires us to generate INVALID_OPERATION if a call to glDrawArrays or
1818 * glDrawArraysInstanced would overflow transform feedback buffers.
1819 * Undefined if Active is false.
1821 * Not tracked for desktop GL since it's unnecessary.
1823 unsigned GlesRemainingPrims
;
1826 * The program active when BeginTransformFeedback() was called.
1827 * When active and unpaused, this equals ctx->Shader.CurrentProgram[stage],
1828 * where stage is the pipeline stage that is the source of data for
1829 * transform feedback.
1831 struct gl_program
*program
;
1833 /** The feedback buffers */
1834 GLuint BufferNames
[MAX_FEEDBACK_BUFFERS
];
1835 struct gl_buffer_object
*Buffers
[MAX_FEEDBACK_BUFFERS
];
1837 /** Start of feedback data in dest buffer */
1838 GLintptr Offset
[MAX_FEEDBACK_BUFFERS
];
1841 * Max data to put into dest buffer (in bytes). Computed based on
1842 * RequestedSize and the actual size of the buffer.
1844 GLsizeiptr Size
[MAX_FEEDBACK_BUFFERS
];
1847 * Size that was specified when the buffer was bound. If the buffer was
1848 * bound with glBindBufferBase() or glBindBufferOffsetEXT(), this value is
1851 GLsizeiptr RequestedSize
[MAX_FEEDBACK_BUFFERS
];
1856 * Context state for transform feedback.
1858 struct gl_transform_feedback_state
1860 GLenum Mode
; /**< GL_POINTS, GL_LINES or GL_TRIANGLES */
1862 /** The general binding point (GL_TRANSFORM_FEEDBACK_BUFFER) */
1863 struct gl_buffer_object
*CurrentBuffer
;
1865 /** The table of all transform feedback objects */
1866 struct _mesa_HashTable
*Objects
;
1868 /** The current xform-fb object (GL_TRANSFORM_FEEDBACK_BINDING) */
1869 struct gl_transform_feedback_object
*CurrentObject
;
1871 /** The default xform-fb object (Name==0) */
1872 struct gl_transform_feedback_object
*DefaultObject
;
1877 * A "performance monitor" as described in AMD_performance_monitor.
1879 struct gl_perf_monitor_object
1883 /** True if the monitor is currently active (Begin called but not End). */
1887 * True if the monitor has ended.
1889 * This is distinct from !Active because it may never have began.
1894 * A list of groups with currently active counters.
1896 * ActiveGroups[g] == n if there are n counters active from group 'g'.
1898 unsigned *ActiveGroups
;
1901 * An array of bitsets, subscripted by group ID, then indexed by counter ID.
1903 * Checking whether counter 'c' in group 'g' is active can be done via:
1905 * BITSET_TEST(ActiveCounters[g], c)
1907 GLuint
**ActiveCounters
;
1911 union gl_perf_monitor_counter_value
1919 struct gl_perf_monitor_counter
1921 /** Human readable name for the counter. */
1925 * Data type of the counter. Valid values are FLOAT, UNSIGNED_INT,
1926 * UNSIGNED_INT64_AMD, and PERCENTAGE_AMD.
1930 /** Minimum counter value. */
1931 union gl_perf_monitor_counter_value Minimum
;
1933 /** Maximum counter value. */
1934 union gl_perf_monitor_counter_value Maximum
;
1938 struct gl_perf_monitor_group
1940 /** Human readable name for the group. */
1944 * Maximum number of counters in this group which can be active at the
1947 GLuint MaxActiveCounters
;
1949 /** Array of counters within this group. */
1950 const struct gl_perf_monitor_counter
*Counters
;
1956 * A query object instance as described in INTEL_performance_query.
1958 * NB: We want to keep this and the corresponding backend structure
1959 * relatively lean considering that applications may expect to
1960 * allocate enough objects to be able to query around all draw calls
1963 struct gl_perf_query_object
1965 GLuint Id
; /**< hash table ID/name */
1966 unsigned Used
:1; /**< has been used for 1 or more queries */
1967 unsigned Active
:1; /**< inside Begin/EndPerfQuery */
1968 unsigned Ready
:1; /**< result is ready? */
1973 * Context state for AMD_performance_monitor.
1975 struct gl_perf_monitor_state
1977 /** Array of performance monitor groups (indexed by group ID) */
1978 const struct gl_perf_monitor_group
*Groups
;
1981 /** The table of all performance monitors. */
1982 struct _mesa_HashTable
*Monitors
;
1987 * Context state for INTEL_performance_query.
1989 struct gl_perf_query_state
1991 struct _mesa_HashTable
*Objects
; /**< The table of all performance query objects */
1996 * A bindless sampler object.
1998 struct gl_bindless_sampler
2000 /** Texture unit (set by glUniform1()). */
2003 /** Whether this bindless sampler is bound to a unit. */
2006 /** Texture Target (TEXTURE_1D/2D/3D/etc_INDEX). */
2007 gl_texture_index target
;
2009 /** Pointer to the base of the data. */
2014 * A bindless image object.
2016 struct gl_bindless_image
2018 /** Image unit (set by glUniform1()). */
2021 /** Whether this bindless image is bound to a unit. */
2024 /** Access qualifier (GL_READ_WRITE, GL_READ_ONLY, GL_WRITE_ONLY) */
2027 /** Pointer to the base of the data. */
2032 * Names of the various vertex/fragment program register files, etc.
2034 * NOTE: first four tokens must fit into 2 bits (see t_vb_arbprogram.c)
2035 * All values should fit in a 4-bit field.
2037 * NOTE: PROGRAM_STATE_VAR, PROGRAM_CONSTANT, and PROGRAM_UNIFORM can all be
2038 * considered to be "uniform" variables since they can only be set outside
2039 * glBegin/End. They're also all stored in the same Parameters array.
2043 PROGRAM_TEMPORARY
, /**< machine->Temporary[] */
2044 PROGRAM_ARRAY
, /**< Arrays & Matrixes */
2045 PROGRAM_INPUT
, /**< machine->Inputs[] */
2046 PROGRAM_OUTPUT
, /**< machine->Outputs[] */
2047 PROGRAM_STATE_VAR
, /**< gl_program->Parameters[] */
2048 PROGRAM_CONSTANT
, /**< gl_program->Parameters[] */
2049 PROGRAM_UNIFORM
, /**< gl_program->Parameters[] */
2050 PROGRAM_WRITE_ONLY
, /**< A dummy, write-only register */
2051 PROGRAM_ADDRESS
, /**< machine->AddressReg */
2052 PROGRAM_SAMPLER
, /**< for shader samplers, compile-time only */
2053 PROGRAM_SYSTEM_VALUE
,/**< InstanceId, PrimitiveID, etc. */
2054 PROGRAM_UNDEFINED
, /**< Invalid/TBD value */
2055 PROGRAM_IMMEDIATE
, /**< Immediate value, used by TGSI */
2056 PROGRAM_BUFFER
, /**< for shader buffers, compile-time only */
2057 PROGRAM_MEMORY
, /**< for shared, global and local memory */
2058 PROGRAM_IMAGE
, /**< for shader images, compile-time only */
2064 * Base class for any kind of program object
2068 /** FIXME: This must be first until we split shader_info from nir_shader */
2069 struct shader_info info
;
2073 GLubyte
*String
; /**< Null-terminated program text */
2075 GLenum Target
; /**< GL_VERTEX/FRAGMENT_PROGRAM_ARB, GL_GEOMETRY_PROGRAM_NV */
2076 GLenum Format
; /**< String encoding format */
2078 GLboolean _Used
; /**< Ever used for drawing? Used for debugging */
2080 struct nir_shader
*nir
;
2082 bool is_arb_asm
; /** Is this an ARB assembly-style program */
2084 /** Is this program written to on disk shader cache */
2085 bool program_written_to_cache
;
2087 GLbitfield64 SecondaryOutputsWritten
; /**< Subset of OutputsWritten outputs written with non-zero index. */
2088 GLbitfield TexturesUsed
[MAX_COMBINED_TEXTURE_IMAGE_UNITS
]; /**< TEXTURE_x_BIT bitmask */
2089 GLbitfield SamplersUsed
; /**< Bitfield of which samplers are used */
2090 GLbitfield ShadowSamplers
; /**< Texture units used for shadow sampling. */
2091 GLbitfield ExternalSamplersUsed
; /**< Texture units used for samplerExternalOES */
2093 /* Fragement shader only fields */
2094 GLboolean OriginUpperLeft
;
2095 GLboolean PixelCenterInteger
;
2097 /** Named parameters, constants, etc. from program text */
2098 struct gl_program_parameter_list
*Parameters
;
2100 /** Map from sampler unit to texture unit (set by glUniform1i()) */
2101 GLubyte SamplerUnits
[MAX_SAMPLERS
];
2103 /* FIXME: We should be able to make this struct a union. However some
2104 * drivers (i915/fragment_programs, swrast/prog_execute) mix the use of
2105 * these fields, we should fix this.
2108 /** Fields used by GLSL programs */
2110 /** Data shared by gl_program and gl_shader_program */
2111 struct gl_shader_program_data
*data
;
2113 struct gl_active_atomic_buffer
**AtomicBuffers
;
2115 /** Post-link transform feedback info. */
2116 struct gl_transform_feedback_info
*LinkedTransformFeedback
;
2119 * Number of types for subroutine uniforms.
2121 GLuint NumSubroutineUniformTypes
;
2124 * Subroutine uniform remap table
2125 * based on the program level uniform remap table.
2127 GLuint NumSubroutineUniforms
; /* non-sparse total */
2128 GLuint NumSubroutineUniformRemapTable
;
2129 struct gl_uniform_storage
**SubroutineUniformRemapTable
;
2132 * Num of subroutine functions for this stage and storage for them.
2134 GLuint NumSubroutineFunctions
;
2135 GLuint MaxSubroutineFunctionIndex
;
2136 struct gl_subroutine_function
*SubroutineFunctions
;
2139 * Map from image uniform index to image unit (set by glUniform1i())
2141 * An image uniform index is associated with each image uniform by
2142 * the linker. The image index associated with each uniform is
2143 * stored in the \c gl_uniform_storage::image field.
2145 GLubyte ImageUnits
[MAX_IMAGE_UNIFORMS
];
2148 * Access qualifier specified in the shader for each image uniform
2149 * index. Either \c GL_READ_ONLY, \c GL_WRITE_ONLY or \c
2152 * It may be different, though only more strict than the value of
2153 * \c gl_image_unit::Access for the corresponding image unit.
2155 GLenum ImageAccess
[MAX_IMAGE_UNIFORMS
];
2157 struct gl_uniform_block
**UniformBlocks
;
2158 struct gl_uniform_block
**ShaderStorageBlocks
;
2160 /** Which texture target is being sampled
2161 * (TEXTURE_1D/2D/3D/etc_INDEX)
2163 gl_texture_index SamplerTargets
[MAX_SAMPLERS
];
2166 * Number of samplers declared with the bindless_sampler layout
2167 * qualifier as specified by ARB_bindless_texture.
2169 GLuint NumBindlessSamplers
;
2170 GLboolean HasBoundBindlessSampler
;
2171 struct gl_bindless_sampler
*BindlessSamplers
;
2174 * Number of images declared with the bindless_image layout qualifier
2175 * as specified by ARB_bindless_texture.
2177 GLuint NumBindlessImages
;
2178 GLboolean HasBoundBindlessImage
;
2179 struct gl_bindless_image
*BindlessImages
;
2184 * A bitmask of gl_advanced_blend_mode values
2186 GLbitfield BlendSupport
;
2191 /** ARB assembly-style program fields */
2193 struct prog_instruction
*Instructions
;
2196 * Local parameters used by the program.
2198 * It's dynamically allocated because it is rarely used (just
2199 * assembly-style programs), and MAX_PROGRAM_LOCAL_PARAMS entries
2200 * once it's allocated.
2202 GLfloat (*LocalParams
)[4];
2204 /** Bitmask of which register files are read/written with indirect
2205 * addressing. Mask of (1 << PROGRAM_x) bits.
2207 GLbitfield IndirectRegisterFiles
;
2209 /** Logical counts */
2211 GLuint NumInstructions
;
2212 GLuint NumTemporaries
;
2213 GLuint NumParameters
;
2214 GLuint NumAttributes
;
2215 GLuint NumAddressRegs
;
2216 GLuint NumAluInstructions
;
2217 GLuint NumTexInstructions
;
2218 GLuint NumTexIndirections
;
2220 /** Native, actual h/w counts */
2222 GLuint NumNativeInstructions
;
2223 GLuint NumNativeTemporaries
;
2224 GLuint NumNativeParameters
;
2225 GLuint NumNativeAttributes
;
2226 GLuint NumNativeAddressRegs
;
2227 GLuint NumNativeAluInstructions
;
2228 GLuint NumNativeTexInstructions
;
2229 GLuint NumNativeTexIndirections
;
2232 /** Used by ARB assembly-style programs. Can only be true for vertex
2235 GLboolean IsPositionInvariant
;
2242 * State common to vertex and fragment programs.
2244 struct gl_program_state
2246 GLint ErrorPos
; /* GL_PROGRAM_ERROR_POSITION_ARB/NV */
2247 const char *ErrorString
; /* GL_PROGRAM_ERROR_STRING_ARB/NV */
2252 * Context state for vertex programs.
2254 struct gl_vertex_program_state
2256 GLboolean Enabled
; /**< User-set GL_VERTEX_PROGRAM_ARB/NV flag */
2257 GLboolean PointSizeEnabled
; /**< GL_VERTEX_PROGRAM_POINT_SIZE_ARB/NV */
2258 GLboolean TwoSideEnabled
; /**< GL_VERTEX_PROGRAM_TWO_SIDE_ARB/NV */
2259 /** Should fixed-function T&L be implemented with a vertex prog? */
2260 GLboolean _MaintainTnlProgram
;
2262 struct gl_program
*Current
; /**< User-bound vertex program */
2264 /** Currently enabled and valid vertex program (including internal
2265 * programs, user-defined vertex programs and GLSL vertex shaders).
2266 * This is the program we must use when rendering.
2268 struct gl_program
*_Current
;
2270 GLfloat Parameters
[MAX_PROGRAM_ENV_PARAMS
][4]; /**< Env params */
2272 /** Program to emulate fixed-function T&L (see above) */
2273 struct gl_program
*_TnlProgram
;
2275 /** Cache of fixed-function programs */
2276 struct gl_program_cache
*Cache
;
2278 GLboolean _Overriden
;
2282 * Context state for tessellation control programs.
2284 struct gl_tess_ctrl_program_state
2286 /** Currently bound and valid shader. */
2287 struct gl_program
*_Current
;
2289 GLint patch_vertices
;
2290 GLfloat patch_default_outer_level
[4];
2291 GLfloat patch_default_inner_level
[2];
2295 * Context state for tessellation evaluation programs.
2297 struct gl_tess_eval_program_state
2299 /** Currently bound and valid shader. */
2300 struct gl_program
*_Current
;
2304 * Context state for geometry programs.
2306 struct gl_geometry_program_state
2308 /** Currently enabled and valid program (including internal programs
2309 * and compiled shader programs).
2311 struct gl_program
*_Current
;
2315 * Context state for fragment programs.
2317 struct gl_fragment_program_state
2319 GLboolean Enabled
; /**< User-set fragment program enable flag */
2320 /** Should fixed-function texturing be implemented with a fragment prog? */
2321 GLboolean _MaintainTexEnvProgram
;
2323 struct gl_program
*Current
; /**< User-bound fragment program */
2325 /** Currently enabled and valid fragment program (including internal
2326 * programs, user-defined fragment programs and GLSL fragment shaders).
2327 * This is the program we must use when rendering.
2329 struct gl_program
*_Current
;
2331 GLfloat Parameters
[MAX_PROGRAM_ENV_PARAMS
][4]; /**< Env params */
2333 /** Program to emulate fixed-function texture env/combine (see above) */
2334 struct gl_program
*_TexEnvProgram
;
2336 /** Cache of fixed-function programs */
2337 struct gl_program_cache
*Cache
;
2342 * Context state for compute programs.
2344 struct gl_compute_program_state
2346 /** Currently enabled and valid program (including internal programs
2347 * and compiled shader programs).
2349 struct gl_program
*_Current
;
2354 * ATI_fragment_shader runtime state
2357 struct atifs_instruction
;
2358 struct atifs_setupinst
;
2361 * ATI fragment shader
2363 struct ati_fragment_shader
2367 struct atifs_instruction
*Instructions
[2];
2368 struct atifs_setupinst
*SetupInst
[2];
2369 GLfloat Constants
[8][4];
2370 GLbitfield LocalConstDef
; /**< Indicates which constants have been set */
2371 GLubyte numArithInstr
[2];
2372 GLubyte regsAssigned
[2];
2373 GLubyte NumPasses
; /**< 1 or 2 */
2375 GLubyte last_optype
;
2376 GLboolean interpinp1
;
2379 struct gl_program
*Program
;
2383 * Context state for GL_ATI_fragment_shader
2385 struct gl_ati_fragment_shader_state
2388 GLboolean Compiling
;
2389 GLfloat GlobalConstants
[8][4];
2390 struct ati_fragment_shader
*Current
;
2394 * Shader subroutine function definition
2396 struct gl_subroutine_function
2400 int num_compat_types
;
2401 const struct glsl_type
**types
;
2405 * Shader information needed by both gl_shader and gl_linked shader.
2407 struct gl_shader_info
2410 * Tessellation Control shader state from layout qualifiers.
2414 * 0 - vertices not declared in shader, or
2415 * 1 .. GL_MAX_PATCH_VERTICES
2421 * Tessellation Evaluation shader state from layout qualifiers.
2425 * GL_TRIANGLES, GL_QUADS, GL_ISOLINES or PRIM_UNKNOWN if it's not set
2428 GLenum PrimitiveMode
;
2430 enum gl_tess_spacing Spacing
;
2433 * GL_CW, GL_CCW, or 0 if it's not set in this shader.
2437 * 1, 0, or -1 if it's not set in this shader.
2443 * Geometry shader state from GLSL 1.50 layout qualifiers.
2448 * 0 - Invocations count not declared in shader, or
2449 * 1 .. MAX_GEOMETRY_SHADER_INVOCATIONS
2453 * GL_POINTS, GL_LINES, GL_LINES_ADJACENCY, GL_TRIANGLES, or
2454 * GL_TRIANGLES_ADJACENCY, or PRIM_UNKNOWN if it's not set in this
2459 * GL_POINTS, GL_LINE_STRIP or GL_TRIANGLE_STRIP, or PRIM_UNKNOWN if
2460 * it's not set in this shader.
2466 * Compute shader state from ARB_compute_shader and
2467 * ARB_compute_variable_group_size layout qualifiers.
2471 * Size specified using local_size_{x,y,z}, or all 0's to indicate that
2472 * it's not set in this shader.
2474 unsigned LocalSize
[3];
2477 * Whether a variable work group size has been specified as defined by
2478 * ARB_compute_variable_group_size.
2480 bool LocalSizeVariable
;
2485 * A linked GLSL shader object.
2487 struct gl_linked_shader
2489 gl_shader_stage Stage
;
2492 unsigned SourceChecksum
;
2495 struct gl_program
*Program
; /**< Post-compile assembly code */
2498 * \name Sampler tracking
2500 * \note Each of these fields is only set post-linking.
2503 GLbitfield shadow_samplers
; /**< Samplers used for shadow sampling. */
2507 * Number of default uniform block components used by this shader.
2509 * This field is only set post-linking.
2511 unsigned num_uniform_components
;
2514 * Number of combined uniform components used by this shader.
2516 * This field is only set post-linking. It is the sum of the uniform block
2517 * sizes divided by sizeof(float), and num_uniform_compoennts.
2519 unsigned num_combined_uniform_components
;
2521 struct exec_list
*ir
;
2522 struct exec_list
*packed_varyings
;
2523 struct exec_list
*fragdata_arrays
;
2524 struct glsl_symbol_table
*symbols
;
2527 static inline GLbitfield
gl_external_samplers(struct gl_program
*prog
)
2529 GLbitfield external_samplers
= 0;
2530 GLbitfield mask
= prog
->SamplersUsed
;
2533 int idx
= u_bit_scan(&mask
);
2534 if (prog
->sh
.SamplerTargets
[idx
] == TEXTURE_EXTERNAL_INDEX
)
2535 external_samplers
|= (1 << idx
);
2538 return external_samplers
;
2542 * Compile status enum. compile_skipped is used to indicate the compile
2543 * was skipped due to the shader matching one that's been seen before by
2544 * the on-disk cache.
2546 enum gl_compile_status
2548 compile_failure
= 0,
2555 * A GLSL shader object.
2559 /** GL_FRAGMENT_SHADER || GL_VERTEX_SHADER || GL_GEOMETRY_SHADER_ARB ||
2560 * GL_TESS_CONTROL_SHADER || GL_TESS_EVALUATION_SHADER.
2561 * Must be the first field.
2564 gl_shader_stage Stage
;
2565 GLuint Name
; /**< AKA the handle */
2566 GLint RefCount
; /**< Reference count */
2567 GLchar
*Label
; /**< GL_KHR_debug */
2568 unsigned char sha1
[20]; /**< SHA1 hash of pre-processed source */
2569 GLboolean DeletePending
;
2570 bool IsES
; /**< True if this shader uses GLSL ES */
2572 enum gl_compile_status CompileStatus
;
2575 unsigned SourceChecksum
; /**< for debug/logging purposes */
2577 const GLchar
*Source
; /**< Source code string */
2579 const GLchar
*FallbackSource
; /**< Fallback string used by on-disk cache*/
2583 unsigned Version
; /**< GLSL version used for linking */
2586 * A bitmask of gl_advanced_blend_mode values
2588 GLbitfield BlendSupport
;
2590 struct exec_list
*ir
;
2591 struct glsl_symbol_table
*symbols
;
2594 * Whether early fragment tests are enabled as defined by
2595 * ARB_shader_image_load_store.
2597 bool EarlyFragmentTests
;
2599 bool ARB_fragment_coord_conventions_enable
;
2601 bool redeclares_gl_fragcoord
;
2602 bool uses_gl_fragcoord
;
2604 bool PostDepthCoverage
;
2608 * Fragment shader state from GLSL 1.50 layout qualifiers.
2610 bool origin_upper_left
;
2611 bool pixel_center_integer
;
2614 * Whether bindless_sampler/bindless_image, and respectively
2615 * bound_sampler/bound_image are declared at global scope as defined by
2616 * ARB_bindless_texture.
2618 bool bindless_sampler
;
2619 bool bindless_image
;
2623 /** Global xfb_stride out qualifier if any */
2624 GLuint TransformFeedbackBufferStride
[MAX_FEEDBACK_BUFFERS
];
2626 struct gl_shader_info info
;
2630 struct gl_uniform_buffer_variable
2635 * Name of the uniform as seen by glGetUniformIndices.
2637 * glGetUniformIndices requires that the block instance index \b not be
2638 * present in the name of queried uniforms.
2641 * \c gl_uniform_buffer_variable::IndexName and
2642 * \c gl_uniform_buffer_variable::Name may point to identical storage.
2646 const struct glsl_type
*Type
;
2647 unsigned int Offset
;
2652 struct gl_uniform_block
2654 /** Declared name of the uniform block */
2657 /** Array of supplemental information about UBO ir_variables. */
2658 struct gl_uniform_buffer_variable
*Uniforms
;
2662 * Index (GL_UNIFORM_BLOCK_BINDING) into ctx->UniformBufferBindings[] to use
2663 * with glBindBufferBase to bind a buffer object to this uniform block.
2668 * Minimum size (in bytes) of a buffer object to back this uniform buffer
2669 * (GL_UNIFORM_BLOCK_DATA_SIZE).
2671 GLuint UniformBufferSize
;
2673 /** Stages that reference this block */
2677 * Linearized array index for uniform block instance arrays
2679 * Given a uniform block instance array declared with size
2680 * blk[s_0][s_1]..[s_m], the block referenced by blk[i_0][i_1]..[i_m] will
2681 * have the linearized array index
2684 * i_m + ∑ i_j * ∏ s_k
2687 * For a uniform block instance that is not an array, this is always 0.
2689 uint8_t linearized_array_index
;
2692 * Layout specified in the shader
2694 * This isn't accessible through the API, but it is used while
2695 * cross-validating uniform blocks.
2697 enum glsl_interface_packing _Packing
;
2698 GLboolean _RowMajor
;
2702 * Structure that represents a reference to an atomic buffer from some
2705 struct gl_active_atomic_buffer
2707 /** Uniform indices of the atomic counters declared within it. */
2711 /** Binding point index associated with it. */
2714 /** Minimum reasonable size it is expected to have. */
2717 /** Shader stages making use of it. */
2718 GLboolean StageReferences
[MESA_SHADER_STAGES
];
2722 * Data container for shader queries. This holds only the minimal
2723 * amount of required information for resource queries to work.
2725 struct gl_shader_variable
2728 * Declared type of the variable
2730 const struct glsl_type
*type
;
2733 * If the variable is in an interface block, this is the type of the block.
2735 const struct glsl_type
*interface_type
;
2738 * For variables inside structs (possibly recursively), this is the
2739 * outermost struct type.
2741 const struct glsl_type
*outermost_struct_type
;
2744 * Declared name of the variable
2749 * Storage location of the base of this variable
2751 * The precise meaning of this field depends on the nature of the variable.
2753 * - Vertex shader input: one of the values from \c gl_vert_attrib.
2754 * - Vertex shader output: one of the values from \c gl_varying_slot.
2755 * - Geometry shader input: one of the values from \c gl_varying_slot.
2756 * - Geometry shader output: one of the values from \c gl_varying_slot.
2757 * - Fragment shader input: one of the values from \c gl_varying_slot.
2758 * - Fragment shader output: one of the values from \c gl_frag_result.
2759 * - Uniforms: Per-stage uniform slot number for default uniform block.
2760 * - Uniforms: Index within the uniform block definition for UBO members.
2761 * - Non-UBO Uniforms: explicit location until linking then reused to
2762 * store uniform slot number.
2763 * - Other: This field is not currently used.
2765 * If the variable is a uniform, shader input, or shader output, and the
2766 * slot has not been assigned, the value will be -1.
2771 * Specifies the first component the variable is stored in as per
2772 * ARB_enhanced_layouts.
2774 unsigned component
:2;
2777 * Output index for dual source blending.
2780 * The GLSL spec only allows the values 0 or 1 for the index in \b dual
2786 * Specifies whether a shader input/output is per-patch in tessellation
2792 * Storage class of the variable.
2794 * \sa (n)ir_variable_mode
2799 * Interpolation mode for shader inputs / outputs
2801 * \sa glsl_interp_mode
2803 unsigned interpolation
:2;
2806 * Was the location explicitly set in the shader?
2808 * If the location is explicitly set in the shader, it \b cannot be changed
2809 * by the linker or by the API (e.g., calls to \c glBindAttribLocation have
2812 unsigned explicit_location
:1;
2815 * Precision qualifier.
2817 unsigned precision
:2;
2821 * Active resource in a gl_shader_program
2823 struct gl_program_resource
2825 GLenum Type
; /** Program interface type. */
2826 const void *Data
; /** Pointer to resource associated data structure. */
2827 uint8_t StageReferences
; /** Bitmask of shader stage references. */
2831 * Link status enum. linking_skipped is used to indicate linking
2832 * was skipped due to the shader being loaded from the on-disk cache.
2836 linking_failure
= 0,
2842 * A data structure to be shared by gl_shader_program and gl_program.
2844 struct gl_shader_program_data
2846 GLint RefCount
; /**< Reference count */
2848 /** SHA1 hash of linked shader program */
2849 unsigned char sha1
[20];
2851 unsigned NumUniformStorage
;
2852 unsigned NumHiddenUniforms
;
2853 struct gl_uniform_storage
*UniformStorage
;
2855 unsigned NumUniformBlocks
;
2856 unsigned NumShaderStorageBlocks
;
2858 struct gl_uniform_block
*UniformBlocks
;
2859 struct gl_uniform_block
*ShaderStorageBlocks
;
2861 struct gl_active_atomic_buffer
*AtomicBuffers
;
2862 unsigned NumAtomicBuffers
;
2864 /* Shader cache variables used during restore */
2865 unsigned NumUniformDataSlots
;
2866 union gl_constant_value
*UniformDataSlots
;
2868 bool cache_fallback
;
2870 /* TODO: This used by Gallium drivers to skip the cache on tgsi fallback.
2871 * All structures (gl_program, uniform storage, etc) will get recreated
2872 * even though we have already loaded them from cache. Once the i965 cache
2873 * lands we should switch to using the cache_fallback support.
2876 GLboolean Validated
;
2878 /** List of all active resources after linking. */
2879 struct gl_program_resource
*ProgramResourceList
;
2880 unsigned NumProgramResourceList
;
2882 enum gl_link_status LinkStatus
; /**< GL_LINK_STATUS */
2885 unsigned Version
; /**< GLSL version used for linking */
2887 /* Mask of stages this program was linked against */
2888 unsigned linked_stages
;
2892 * A GLSL program object.
2893 * Basically a linked collection of vertex and fragment shaders.
2895 struct gl_shader_program
2897 GLenum Type
; /**< Always GL_SHADER_PROGRAM (internal token) */
2898 GLuint Name
; /**< aka handle or ID */
2899 GLchar
*Label
; /**< GL_KHR_debug */
2900 GLint RefCount
; /**< Reference count */
2901 GLboolean DeletePending
;
2904 * Is the application intending to glGetProgramBinary this program?
2906 GLboolean BinaryRetreivableHint
;
2909 * Indicates whether program can be bound for individual pipeline stages
2910 * using UseProgramStages after it is next linked.
2912 GLboolean SeparateShader
;
2914 GLuint NumShaders
; /**< number of attached shaders */
2915 struct gl_shader
**Shaders
; /**< List of attached the shaders */
2918 * User-defined attribute bindings
2920 * These are set via \c glBindAttribLocation and are used to direct the
2921 * GLSL linker. These are \b not the values used in the compiled shader,
2922 * and they are \b not the values returned by \c glGetAttribLocation.
2924 struct string_to_uint_map
*AttributeBindings
;
2927 * User-defined fragment data bindings
2929 * These are set via \c glBindFragDataLocation and are used to direct the
2930 * GLSL linker. These are \b not the values used in the compiled shader,
2931 * and they are \b not the values returned by \c glGetFragDataLocation.
2933 struct string_to_uint_map
*FragDataBindings
;
2934 struct string_to_uint_map
*FragDataIndexBindings
;
2937 * Transform feedback varyings last specified by
2938 * glTransformFeedbackVaryings().
2940 * For the current set of transform feedback varyings used for transform
2941 * feedback output, see LinkedTransformFeedback.
2945 /** Global xfb_stride out qualifier if any */
2946 GLuint BufferStride
[MAX_FEEDBACK_BUFFERS
];
2948 GLchar
**VaryingNames
; /**< Array [NumVarying] of char * */
2949 } TransformFeedback
;
2951 struct gl_program
*last_vert_prog
;
2953 /** Post-link gl_FragDepth layout for ARB_conservative_depth. */
2954 enum gl_frag_depth_layout FragDepthLayout
;
2957 * Geometry shader state - copied into gl_program by
2958 * _mesa_copy_linked_program_data().
2963 bool UsesEndPrimitive
;
2968 * Compute shader state - copied into gl_program by
2969 * _mesa_copy_linked_program_data().
2973 * Size of shared variables accessed by the compute shader.
2975 unsigned SharedSize
;
2978 /** Data shared by gl_program and gl_shader_program */
2979 struct gl_shader_program_data
*data
;
2982 * Mapping from GL uniform locations returned by \c glUniformLocation to
2983 * UniformStorage entries. Arrays will have multiple contiguous slots
2984 * in the UniformRemapTable, all pointing to the same UniformStorage entry.
2986 unsigned NumUniformRemapTable
;
2987 struct gl_uniform_storage
**UniformRemapTable
;
2990 * Sometimes there are empty slots left over in UniformRemapTable after we
2991 * allocate slots to explicit locations. This list stores the blocks of
2992 * continuous empty slots inside UniformRemapTable.
2994 struct exec_list EmptyUniformLocations
;
2997 * Total number of explicit uniform location including inactive uniforms.
2999 unsigned NumExplicitUniformLocations
;
3002 * Map of active uniform names to locations
3004 * Maps any active uniform that is not an array element to a location.
3005 * Each active uniform, including individual structure members will appear
3006 * in this map. This roughly corresponds to the set of names that would be
3007 * enumerated by \c glGetActiveUniform.
3009 struct string_to_uint_map
*UniformHash
;
3011 GLboolean SamplersValidated
; /**< Samplers validated against texture units? */
3013 bool IsES
; /**< True if this program uses GLSL ES */
3016 * Per-stage shaders resulting from the first stage of linking.
3018 * Set of linked shaders for this program. The array is accessed using the
3019 * \c MESA_SHADER_* defines. Entries for non-existent stages will be
3022 struct gl_linked_shader
*_LinkedShaders
[MESA_SHADER_STAGES
];
3024 /* True if any of the fragment shaders attached to this program use:
3025 * #extension ARB_fragment_coord_conventions: enable
3027 GLboolean ARB_fragment_coord_conventions_enable
;
3031 #define GLSL_DUMP 0x1 /**< Dump shaders to stdout */
3032 #define GLSL_LOG 0x2 /**< Write shaders to files */
3033 #define GLSL_UNIFORMS 0x4 /**< Print glUniform calls */
3034 #define GLSL_NOP_VERT 0x8 /**< Force no-op vertex shaders */
3035 #define GLSL_NOP_FRAG 0x10 /**< Force no-op fragment shaders */
3036 #define GLSL_USE_PROG 0x20 /**< Log glUseProgram calls */
3037 #define GLSL_REPORT_ERRORS 0x40 /**< Print compilation errors */
3038 #define GLSL_DUMP_ON_ERROR 0x80 /**< Dump shaders to stderr on compile error */
3039 #define GLSL_CACHE_INFO 0x100 /**< Print debug information about shader cache */
3040 #define GLSL_CACHE_FALLBACK 0x200 /**< Force shader cache fallback paths */
3044 * Context state for GLSL vertex/fragment shaders.
3045 * Extended to support pipeline object
3047 struct gl_pipeline_object
3049 /** Name of the pipeline object as received from glGenProgramPipelines.
3050 * It would be 0 for shaders without separate shader objects.
3056 GLchar
*Label
; /**< GL_KHR_debug */
3059 * Programs used for rendering
3061 * There is a separate program set for each shader stage.
3063 struct gl_program
*CurrentProgram
[MESA_SHADER_STAGES
];
3065 struct gl_shader_program
*ReferencedPrograms
[MESA_SHADER_STAGES
];
3068 * Program used by glUniform calls.
3070 * Explicitly set by \c glUseProgram and \c glActiveProgramEXT.
3072 struct gl_shader_program
*ActiveProgram
;
3074 GLbitfield Flags
; /**< Mask of GLSL_x flags */
3076 GLboolean EverBound
; /**< Has the pipeline object been created */
3078 GLboolean Validated
; /**< Pipeline Validation status */
3084 * Context state for GLSL pipeline shaders.
3086 struct gl_pipeline_shader_state
3088 /** Currently bound pipeline object. See _mesa_BindProgramPipeline() */
3089 struct gl_pipeline_object
*Current
;
3091 /* Default Object to ensure that _Shader is never NULL */
3092 struct gl_pipeline_object
*Default
;
3094 /** Pipeline objects */
3095 struct _mesa_HashTable
*Objects
;
3099 * Compiler options for a single GLSL shaders type
3101 struct gl_shader_compiler_options
3103 /** Driver-selectable options: */
3104 GLboolean EmitNoLoops
;
3105 GLboolean EmitNoCont
; /**< Emit CONT opcode? */
3106 GLboolean EmitNoMainReturn
; /**< Emit CONT/RET opcodes? */
3107 GLboolean EmitNoPow
; /**< Emit POW opcodes? */
3108 GLboolean EmitNoSat
; /**< Emit SAT opcodes? */
3109 GLboolean LowerCombinedClipCullDistance
; /** Lower gl_ClipDistance and
3110 * gl_CullDistance together from
3111 * float[8] to vec4[2]
3115 * \name Forms of indirect addressing the driver cannot do.
3118 GLboolean EmitNoIndirectInput
; /**< No indirect addressing of inputs */
3119 GLboolean EmitNoIndirectOutput
; /**< No indirect addressing of outputs */
3120 GLboolean EmitNoIndirectTemp
; /**< No indirect addressing of temps */
3121 GLboolean EmitNoIndirectUniform
; /**< No indirect addressing of constants */
3122 GLboolean EmitNoIndirectSampler
; /**< No indirect addressing of samplers */
3125 GLuint MaxIfDepth
; /**< Maximum nested IF blocks */
3126 GLuint MaxUnrollIterations
;
3129 * Optimize code for array of structures backends.
3131 * This is a proxy for:
3132 * - preferring DP4 instructions (rather than MUL/MAD) for
3133 * matrix * vector operations, such as position transformation.
3135 GLboolean OptimizeForAOS
;
3137 GLboolean LowerBufferInterfaceBlocks
; /**< Lower UBO and SSBO access to intrinsics. */
3139 /** Clamp UBO and SSBO block indices so they don't go out-of-bounds. */
3140 GLboolean ClampBlockIndicesToArrayBounds
;
3142 const struct nir_shader_compiler_options
*NirOptions
;
3147 * Occlusion/timer query object.
3149 struct gl_query_object
3151 GLenum Target
; /**< The query target, when active */
3152 GLuint Id
; /**< hash table ID/name */
3153 GLchar
*Label
; /**< GL_KHR_debug */
3154 GLuint64EXT Result
; /**< the counter */
3155 GLboolean Active
; /**< inside Begin/EndQuery */
3156 GLboolean Ready
; /**< result is ready? */
3157 GLboolean EverBound
;/**< has query object ever been bound */
3158 GLuint Stream
; /**< The stream */
3163 * Context state for query objects.
3165 struct gl_query_state
3167 struct _mesa_HashTable
*QueryObjects
;
3168 struct gl_query_object
*CurrentOcclusionObject
; /* GL_ARB_occlusion_query */
3169 struct gl_query_object
*CurrentTimerObject
; /* GL_EXT_timer_query */
3171 /** GL_NV_conditional_render */
3172 struct gl_query_object
*CondRenderQuery
;
3174 /** GL_EXT_transform_feedback */
3175 struct gl_query_object
*PrimitivesGenerated
[MAX_VERTEX_STREAMS
];
3176 struct gl_query_object
*PrimitivesWritten
[MAX_VERTEX_STREAMS
];
3178 /** GL_ARB_transform_feedback_overflow_query */
3179 struct gl_query_object
*TransformFeedbackOverflow
[MAX_VERTEX_STREAMS
];
3180 struct gl_query_object
*TransformFeedbackOverflowAny
;
3182 /** GL_ARB_timer_query */
3183 struct gl_query_object
*TimeElapsed
;
3185 /** GL_ARB_pipeline_statistics_query */
3186 struct gl_query_object
*pipeline_stats
[MAX_PIPELINE_STATISTICS
];
3188 GLenum CondRenderMode
;
3192 /** Sync object state */
3193 struct gl_sync_object
3195 GLuint Name
; /**< Fence name */
3196 GLint RefCount
; /**< Reference count */
3197 GLchar
*Label
; /**< GL_KHR_debug */
3198 GLboolean DeletePending
; /**< Object was deleted while there were still
3199 * live references (e.g., sync not yet finished)
3201 GLenum SyncCondition
;
3202 GLbitfield Flags
; /**< Flags passed to glFenceSync */
3203 GLuint StatusFlag
:1; /**< Has the sync object been signaled? */
3208 * State which can be shared by multiple contexts:
3210 struct gl_shared_state
3212 mtx_t Mutex
; /**< for thread safety */
3213 GLint RefCount
; /**< Reference count */
3214 struct _mesa_HashTable
*DisplayList
; /**< Display lists hash table */
3215 struct _mesa_HashTable
*BitmapAtlas
; /**< For optimized glBitmap text */
3216 struct _mesa_HashTable
*TexObjects
; /**< Texture objects hash table */
3218 /** Default texture objects (shared by all texture units) */
3219 struct gl_texture_object
*DefaultTex
[NUM_TEXTURE_TARGETS
];
3221 /** Fallback texture used when a bound texture is incomplete */
3222 struct gl_texture_object
*FallbackTex
[NUM_TEXTURE_TARGETS
];
3225 * \name Thread safety and statechange notification for texture
3228 * \todo Improve the granularity of locking.
3231 mtx_t TexMutex
; /**< texobj thread safety */
3232 GLuint TextureStateStamp
; /**< state notification for shared tex */
3235 /** Default buffer object for vertex arrays that aren't in VBOs */
3236 struct gl_buffer_object
*NullBufferObj
;
3239 * \name Vertex/geometry/fragment programs
3242 struct _mesa_HashTable
*Programs
; /**< All vertex/fragment programs */
3243 struct gl_program
*DefaultVertexProgram
;
3244 struct gl_program
*DefaultFragmentProgram
;
3247 /* GL_ATI_fragment_shader */
3248 struct _mesa_HashTable
*ATIShaders
;
3249 struct ati_fragment_shader
*DefaultFragmentShader
;
3251 struct _mesa_HashTable
*BufferObjects
;
3253 /** Table of both gl_shader and gl_shader_program objects */
3254 struct _mesa_HashTable
*ShaderObjects
;
3256 /* GL_EXT_framebuffer_object */
3257 struct _mesa_HashTable
*RenderBuffers
;
3258 struct _mesa_HashTable
*FrameBuffers
;
3261 struct set
*SyncObjects
;
3263 /** GL_ARB_sampler_objects */
3264 struct _mesa_HashTable
*SamplerObjects
;
3266 /* GL_ARB_bindless_texture */
3267 struct hash_table_u64
*TextureHandles
;
3268 struct hash_table_u64
*ImageHandles
;
3269 mtx_t HandlesMutex
; /**< For texture/image handles safety */
3272 * Some context in this share group was affected by a GPU reset
3274 * On the next call to \c glGetGraphicsResetStatus, contexts that have not
3275 * been affected by a GPU reset must also return
3276 * \c GL_INNOCENT_CONTEXT_RESET_ARB.
3278 * Once this field becomes true, it is never reset to false.
3280 bool ShareGroupReset
;
3282 /** EXT_external_objects */
3283 struct _mesa_HashTable
*MemoryObjects
;
3290 * Renderbuffers represent drawing surfaces such as color, depth and/or
3291 * stencil. A framebuffer object has a set of renderbuffers.
3292 * Drivers will typically derive subclasses of this type.
3294 struct gl_renderbuffer
3296 mtx_t Mutex
; /**< for thread safety */
3297 GLuint ClassID
; /**< Useful for drivers */
3299 GLchar
*Label
; /**< GL_KHR_debug */
3301 GLuint Width
, Height
;
3303 GLboolean Purgeable
; /**< Is the buffer purgeable under memory pressure? */
3304 GLboolean AttachedAnytime
; /**< TRUE if it was attached to a framebuffer */
3306 * True for renderbuffers that wrap textures, giving the driver a chance to
3307 * flush render caches through the FinishRenderTexture hook.
3309 * Drivers may also set this on renderbuffers other than those generated by
3310 * glFramebufferTexture(), though it means FinishRenderTexture() would be
3311 * called without a rb->TexImage.
3313 GLboolean NeedsFinishRenderTexture
;
3314 GLubyte NumSamples
; /**< zero means not multisampled */
3315 GLenum InternalFormat
; /**< The user-specified format */
3316 GLenum _BaseFormat
; /**< Either GL_RGB, GL_RGBA, GL_DEPTH_COMPONENT or
3317 GL_STENCIL_INDEX. */
3318 mesa_format Format
; /**< The actual renderbuffer memory format */
3320 * Pointer to the texture image if this renderbuffer wraps a texture,
3323 * Note that the reference on the gl_texture_object containing this
3324 * TexImage is held by the gl_renderbuffer_attachment.
3326 struct gl_texture_image
*TexImage
;
3328 /** Delete this renderbuffer */
3329 void (*Delete
)(struct gl_context
*ctx
, struct gl_renderbuffer
*rb
);
3331 /** Allocate new storage for this renderbuffer */
3332 GLboolean (*AllocStorage
)(struct gl_context
*ctx
,
3333 struct gl_renderbuffer
*rb
,
3334 GLenum internalFormat
,
3335 GLuint width
, GLuint height
);
3340 * A renderbuffer attachment points to either a texture object (and specifies
3341 * a mipmap level, cube face or 3D texture slice) or points to a renderbuffer.
3343 struct gl_renderbuffer_attachment
3345 GLenum Type
; /**< \c GL_NONE or \c GL_TEXTURE or \c GL_RENDERBUFFER_EXT */
3349 * If \c Type is \c GL_RENDERBUFFER_EXT, this stores a pointer to the
3350 * application supplied renderbuffer object.
3352 struct gl_renderbuffer
*Renderbuffer
;
3355 * If \c Type is \c GL_TEXTURE, this stores a pointer to the application
3356 * supplied texture object.
3358 struct gl_texture_object
*Texture
;
3359 GLuint TextureLevel
; /**< Attached mipmap level. */
3360 GLuint CubeMapFace
; /**< 0 .. 5, for cube map textures. */
3361 GLuint Zoffset
; /**< Slice for 3D textures, or layer for both 1D
3362 * and 2D array textures */
3368 * A framebuffer is a collection of renderbuffers (color, depth, stencil, etc).
3369 * In C++ terms, think of this as a base class from which device drivers
3370 * will make derived classes.
3372 struct gl_framebuffer
3374 mtx_t Mutex
; /**< for thread safety */
3376 * If zero, this is a window system framebuffer. If non-zero, this
3377 * is a FBO framebuffer; note that for some devices (i.e. those with
3378 * a natural pixel coordinate system for FBOs that differs from the
3379 * OpenGL/Mesa coordinate system), this means that the viewport,
3380 * polygon face orientation, and polygon stipple will have to be inverted.
3385 GLchar
*Label
; /**< GL_KHR_debug */
3387 GLboolean DeletePending
;
3390 * The framebuffer's visual. Immutable if this is a window system buffer.
3391 * Computed from attachments if user-made FBO.
3393 struct gl_config Visual
;
3396 * Size of frame buffer in pixels. If there are no attachments, then both
3399 GLuint Width
, Height
;
3402 * In the case that the framebuffer has no attachment (i.e.
3403 * GL_ARB_framebuffer_no_attachments) then the geometry of
3404 * the framebuffer is specified by the default values.
3407 GLuint Width
, Height
, Layers
, NumSamples
;
3408 GLboolean FixedSampleLocations
;
3409 /* Derived from NumSamples by the driver so that it can choose a valid
3410 * value for the hardware.
3415 /** \name Drawing bounds (Intersection of buffer size and scissor box)
3416 * The drawing region is given by [_Xmin, _Xmax) x [_Ymin, _Ymax),
3417 * (inclusive for _Xmin and _Ymin while exclusive for _Xmax and _Ymax)
3424 /** \name Derived Z buffer stuff */
3426 GLuint _DepthMax
; /**< Max depth buffer value */
3427 GLfloat _DepthMaxF
; /**< Float max depth buffer value */
3428 GLfloat _MRD
; /**< minimum resolvable difference in Z values */
3431 /** One of the GL_FRAMEBUFFER_(IN)COMPLETE_* tokens */
3434 /** Whether one of Attachment has Type != GL_NONE
3435 * NOTE: the values for Width and Height are set to 0 in case of having
3436 * no attachments, a backend driver supporting the extension
3437 * GL_ARB_framebuffer_no_attachments must check for the flag _HasAttachments
3438 * and if GL_FALSE, must then use the values in DefaultGeometry to initialize
3439 * its viewport, scissor and so on (in particular _Xmin, _Xmax, _Ymin and
3440 * _Ymax do NOT take into account _HasAttachments being false). To get the
3441 * geometry of the framebuffer, the helper functions
3442 * _mesa_geometric_width(),
3443 * _mesa_geometric_height(),
3444 * _mesa_geometric_samples() and
3445 * _mesa_geometric_layers()
3446 * are available that check _HasAttachments.
3448 bool _HasAttachments
;
3450 GLbitfield _IntegerBuffers
; /**< Which color buffers are integer valued */
3452 /* ARB_color_buffer_float */
3453 GLboolean _AllColorBuffersFixedPoint
; /* no integer, no float */
3454 GLboolean _HasSNormOrFloatColorBuffer
;
3457 * The maximum number of layers in the framebuffer, or 0 if the framebuffer
3458 * is not layered. For cube maps and cube map arrays, each cube face
3459 * counts as a layer. As the case for Width, Height a backend driver
3460 * supporting GL_ARB_framebuffer_no_attachments must use DefaultGeometry
3461 * in the case that _HasAttachments is false
3463 GLuint MaxNumLayers
;
3465 /** Array of all renderbuffer attachments, indexed by BUFFER_* tokens. */
3466 struct gl_renderbuffer_attachment Attachment
[BUFFER_COUNT
];
3468 /* In unextended OpenGL these vars are part of the GL_COLOR_BUFFER
3469 * attribute group and GL_PIXEL attribute group, respectively.
3471 GLenum ColorDrawBuffer
[MAX_DRAW_BUFFERS
];
3472 GLenum ColorReadBuffer
;
3474 /** Computed from ColorDraw/ReadBuffer above */
3475 GLuint _NumColorDrawBuffers
;
3476 GLint _ColorDrawBufferIndexes
[MAX_DRAW_BUFFERS
]; /**< BUFFER_x or -1 */
3477 GLint _ColorReadBufferIndex
; /* -1 = None */
3478 struct gl_renderbuffer
*_ColorDrawBuffers
[MAX_DRAW_BUFFERS
];
3479 struct gl_renderbuffer
*_ColorReadBuffer
;
3481 /** Delete this framebuffer */
3482 void (*Delete
)(struct gl_framebuffer
*fb
);
3487 * Precision info for shader datatypes. See glGetShaderPrecisionFormat().
3491 GLushort RangeMin
; /**< min value exponent */
3492 GLushort RangeMax
; /**< max value exponent */
3493 GLushort Precision
; /**< number of mantissa bits */
3498 * Limits for vertex, geometry and fragment programs/shaders.
3500 struct gl_program_constants
3502 /* logical limits */
3503 GLuint MaxInstructions
;
3504 GLuint MaxAluInstructions
;
3505 GLuint MaxTexInstructions
;
3506 GLuint MaxTexIndirections
;
3509 GLuint MaxAddressRegs
;
3510 GLuint MaxAddressOffset
; /**< [-MaxAddressOffset, MaxAddressOffset-1] */
3511 GLuint MaxParameters
;
3512 GLuint MaxLocalParams
;
3513 GLuint MaxEnvParams
;
3514 /* native/hardware limits */
3515 GLuint MaxNativeInstructions
;
3516 GLuint MaxNativeAluInstructions
;
3517 GLuint MaxNativeTexInstructions
;
3518 GLuint MaxNativeTexIndirections
;
3519 GLuint MaxNativeAttribs
;
3520 GLuint MaxNativeTemps
;
3521 GLuint MaxNativeAddressRegs
;
3522 GLuint MaxNativeParameters
;
3524 GLuint MaxUniformComponents
; /**< Usually == MaxParameters * 4 */
3527 * \name Per-stage input / output limits
3529 * Previous to OpenGL 3.2, the intrastage data limits were advertised with
3530 * a single value: GL_MAX_VARYING_COMPONENTS (GL_MAX_VARYING_VECTORS in
3531 * ES). This is stored as \c gl_constants::MaxVarying.
3533 * Starting with OpenGL 3.2, the limits are advertised with per-stage
3534 * variables. Each stage as a certain number of outputs that it can feed
3535 * to the next stage and a certain number inputs that it can consume from
3536 * the previous stage.
3538 * Vertex shader inputs do not participate this in this accounting.
3539 * These are tracked exclusively by \c gl_program_constants::MaxAttribs.
3541 * Fragment shader outputs do not participate this in this accounting.
3542 * These are tracked exclusively by \c gl_constants::MaxDrawBuffers.
3545 GLuint MaxInputComponents
;
3546 GLuint MaxOutputComponents
;
3549 /* ES 2.0 and GL_ARB_ES2_compatibility */
3550 struct gl_precision LowFloat
, MediumFloat
, HighFloat
;
3551 struct gl_precision LowInt
, MediumInt
, HighInt
;
3552 /* GL_ARB_uniform_buffer_object */
3553 GLuint MaxUniformBlocks
;
3554 GLuint MaxCombinedUniformComponents
;
3555 GLuint MaxTextureImageUnits
;
3557 /* GL_ARB_shader_atomic_counters */
3558 GLuint MaxAtomicBuffers
;
3559 GLuint MaxAtomicCounters
;
3561 /* GL_ARB_shader_image_load_store */
3562 GLuint MaxImageUniforms
;
3564 /* GL_ARB_shader_storage_buffer_object */
3565 GLuint MaxShaderStorageBlocks
;
3570 * Constants which may be overridden by device driver during context creation
3571 * but are never changed after that.
3575 GLuint MaxTextureMbytes
; /**< Max memory per image, in MB */
3576 GLuint MaxTextureLevels
; /**< Max mipmap levels. */
3577 GLuint Max3DTextureLevels
; /**< Max mipmap levels for 3D textures */
3578 GLuint MaxCubeTextureLevels
; /**< Max mipmap levels for cube textures */
3579 GLuint MaxArrayTextureLayers
; /**< Max layers in array textures */
3580 GLuint MaxTextureRectSize
; /**< Max rectangle texture size, in pixes */
3581 GLuint MaxTextureCoordUnits
;
3582 GLuint MaxCombinedTextureImageUnits
;
3583 GLuint MaxTextureUnits
; /**< = MIN(CoordUnits, FragmentProgram.ImageUnits) */
3584 GLfloat MaxTextureMaxAnisotropy
; /**< GL_EXT_texture_filter_anisotropic */
3585 GLfloat MaxTextureLodBias
; /**< GL_EXT_texture_lod_bias */
3586 GLuint MaxTextureBufferSize
; /**< GL_ARB_texture_buffer_object */
3588 GLuint TextureBufferOffsetAlignment
; /**< GL_ARB_texture_buffer_range */
3590 GLuint MaxArrayLockSize
;
3594 GLfloat MinPointSize
, MaxPointSize
; /**< aliased */
3595 GLfloat MinPointSizeAA
, MaxPointSizeAA
; /**< antialiased */
3596 GLfloat PointSizeGranularity
;
3597 GLfloat MinLineWidth
, MaxLineWidth
; /**< aliased */
3598 GLfloat MinLineWidthAA
, MaxLineWidthAA
; /**< antialiased */
3599 GLfloat LineWidthGranularity
;
3601 GLuint MaxClipPlanes
;
3603 GLfloat MaxShininess
; /**< GL_NV_light_max_exponent */
3604 GLfloat MaxSpotExponent
; /**< GL_NV_light_max_exponent */
3606 GLuint MaxViewportWidth
, MaxViewportHeight
;
3607 GLuint MaxViewports
; /**< GL_ARB_viewport_array */
3608 GLuint ViewportSubpixelBits
; /**< GL_ARB_viewport_array */
3612 } ViewportBounds
; /**< GL_ARB_viewport_array */
3613 GLuint MaxWindowRectangles
; /**< GL_EXT_window_rectangles */
3615 struct gl_program_constants Program
[MESA_SHADER_STAGES
];
3616 GLuint MaxProgramMatrices
;
3617 GLuint MaxProgramMatrixStackDepth
;
3620 GLuint SamplesPassed
;
3623 GLuint PrimitivesGenerated
;
3624 GLuint PrimitivesWritten
;
3625 GLuint VerticesSubmitted
;
3626 GLuint PrimitivesSubmitted
;
3627 GLuint VsInvocations
;
3629 GLuint TessInvocations
;
3630 GLuint GsInvocations
;
3631 GLuint GsPrimitives
;
3632 GLuint FsInvocations
;
3633 GLuint ComputeInvocations
;
3634 GLuint ClInPrimitives
;
3635 GLuint ClOutPrimitives
;
3638 GLuint MaxDrawBuffers
; /**< GL_ARB_draw_buffers */
3640 GLuint MaxColorAttachments
; /**< GL_EXT_framebuffer_object */
3641 GLuint MaxRenderbufferSize
; /**< GL_EXT_framebuffer_object */
3642 GLuint MaxSamples
; /**< GL_ARB_framebuffer_object */
3645 * GL_ARB_framebuffer_no_attachments
3647 GLuint MaxFramebufferWidth
;
3648 GLuint MaxFramebufferHeight
;
3649 GLuint MaxFramebufferLayers
;
3650 GLuint MaxFramebufferSamples
;
3652 /** Number of varying vectors between any two shader stages. */
3656 * GL_ARB_uniform_buffer_object
3658 GLuint MaxCombinedUniformBlocks
;
3659 GLuint MaxUniformBufferBindings
;
3660 GLuint MaxUniformBlockSize
;
3661 GLuint UniformBufferOffsetAlignment
;
3665 * GL_ARB_shader_storage_buffer_object
3667 GLuint MaxCombinedShaderStorageBlocks
;
3668 GLuint MaxShaderStorageBufferBindings
;
3669 GLuint MaxShaderStorageBlockSize
;
3670 GLuint ShaderStorageBufferOffsetAlignment
;
3674 * GL_ARB_explicit_uniform_location
3676 GLuint MaxUserAssignableUniformLocations
;
3678 /** geometry shader */
3679 GLuint MaxGeometryOutputVertices
;
3680 GLuint MaxGeometryTotalOutputComponents
;
3682 GLuint GLSLVersion
; /**< Desktop GLSL version supported (ex: 120 = 1.20) */
3685 * Changes default GLSL extension behavior from "error" to "warn". It's out
3686 * of spec, but it can make some apps work that otherwise wouldn't.
3688 GLboolean ForceGLSLExtensionsWarn
;
3691 * If non-zero, forces GLSL shaders to behave as if they began
3692 * with "#version ForceGLSLVersion".
3694 GLuint ForceGLSLVersion
;
3697 * Allow GLSL #extension directives in the middle of shaders.
3699 GLboolean AllowGLSLExtensionDirectiveMidShader
;
3702 * Allow GLSL built-in variables to be redeclared verbatim
3704 GLboolean AllowGLSLBuiltinVariableRedeclaration
;
3707 * Allow creating a higher compat profile (version 3.1+) for apps that
3708 * request it. Be careful when adding that driconf option because some
3709 * features are unimplemented and might not work correctly.
3711 GLboolean AllowHigherCompatVersion
;
3714 * Force computing the absolute value for sqrt() and inversesqrt() to follow
3715 * D3D9 when apps rely on this behaviour.
3717 GLboolean ForceGLSLAbsSqrt
;
3720 * Force uninitialized variables to default to zero.
3722 GLboolean GLSLZeroInit
;
3725 * Does the driver support real 32-bit integers? (Otherwise, integers are
3726 * simulated via floats.)
3728 GLboolean NativeIntegers
;
3731 * Does VertexID count from zero or from base vertex?
3734 * If desktop GLSL 1.30 or GLSL ES 3.00 are not supported, this field is
3735 * ignored and need not be set.
3737 bool VertexID_is_zero_based
;
3740 * If the driver supports real 32-bit integers, what integer value should be
3741 * used for boolean true in uniform uploads? (Usually 1 or ~0.)
3743 GLuint UniformBooleanTrue
;
3746 * Maximum amount of time, measured in nanseconds, that the server can wait.
3748 GLuint64 MaxServerWaitTimeout
;
3750 /** GL_EXT_provoking_vertex */
3751 GLboolean QuadsFollowProvokingVertexConvention
;
3753 /** GL_ARB_viewport_array */
3754 GLenum LayerAndVPIndexProvokingVertex
;
3756 /** OpenGL version 3.0 */
3757 GLbitfield ContextFlags
; /**< Ex: GL_CONTEXT_FLAG_FORWARD_COMPATIBLE_BIT */
3759 /** OpenGL version 3.2 */
3760 GLbitfield ProfileMask
; /**< Mask of CONTEXT_x_PROFILE_BIT */
3762 /** OpenGL version 4.4 */
3763 GLuint MaxVertexAttribStride
;
3765 /** GL_EXT_transform_feedback */
3766 GLuint MaxTransformFeedbackBuffers
;
3767 GLuint MaxTransformFeedbackSeparateComponents
;
3768 GLuint MaxTransformFeedbackInterleavedComponents
;
3769 GLuint MaxVertexStreams
;
3771 /** GL_EXT_gpu_shader4 */
3772 GLint MinProgramTexelOffset
, MaxProgramTexelOffset
;
3774 /** GL_ARB_texture_gather */
3775 GLuint MinProgramTextureGatherOffset
;
3776 GLuint MaxProgramTextureGatherOffset
;
3777 GLuint MaxProgramTextureGatherComponents
;
3779 /* GL_ARB_robustness */
3780 GLenum ResetStrategy
;
3782 /* GL_KHR_robustness */
3783 GLboolean RobustAccess
;
3785 /* GL_ARB_blend_func_extended */
3786 GLuint MaxDualSourceDrawBuffers
;
3789 * Whether the implementation strips out and ignores texture borders.
3791 * Many GPU hardware implementations don't support rendering with texture
3792 * borders and mipmapped textures. (Note: not static border color, but the
3793 * old 1-pixel border around each edge). Implementations then have to do
3794 * slow fallbacks to be correct, or just ignore the border and be fast but
3795 * wrong. Setting the flag strips the border off of TexImage calls,
3796 * providing "fast but wrong" at significantly reduced driver complexity.
3798 * Texture borders are deprecated in GL 3.0.
3800 GLboolean StripTextureBorder
;
3803 * For drivers which can do a better job at eliminating unused uniforms
3804 * than the GLSL compiler.
3806 * XXX Remove these as soon as a better solution is available.
3808 GLboolean GLSLSkipStrictMaxUniformLimitCheck
;
3810 /** Whether gl_FragCoord and gl_FrontFacing are system values. */
3811 bool GLSLFragCoordIsSysVal
;
3812 bool GLSLFrontFacingIsSysVal
;
3815 * Run the minimum amount of GLSL optimizations to be able to link
3816 * shaders optimally (eliminate dead varyings and uniforms) and just do
3817 * all the necessary lowering.
3819 bool GLSLOptimizeConservatively
;
3822 * True if gl_TessLevelInner/Outer[] in the TES should be inputs
3823 * (otherwise, they're system values).
3825 bool GLSLTessLevelsAsInputs
;
3828 * Always use the GetTransformFeedbackVertexCount() driver hook, rather
3829 * than passing the transform feedback object to the drawing function.
3831 GLboolean AlwaysUseGetTransformFeedbackVertexCount
;
3833 /** GL_ARB_map_buffer_alignment */
3834 GLuint MinMapBufferAlignment
;
3837 * Disable varying packing. This is out of spec, but potentially useful
3838 * for older platforms that supports a limited number of texture
3839 * indirections--on these platforms, unpacking the varyings in the fragment
3840 * shader increases the number of texture indirections by 1, which might
3841 * make some shaders not executable at all.
3843 * Drivers that support transform feedback must set this value to GL_FALSE.
3845 GLboolean DisableVaryingPacking
;
3848 * UBOs and SSBOs can be packed tightly by the OpenGL implementation when
3849 * layout is set as shared (the default) or packed. However most Mesa drivers
3850 * just use STD140 for these layouts. This flag allows drivers to use STD430
3851 * for packed and shared layouts which allows arrays to be packed more
3854 bool UseSTD430AsDefaultPacking
;
3857 * Should meaningful names be generated for compiler temporary variables?
3859 * Generally, it is not useful to have the compiler generate "meaningful"
3860 * names for temporary variables that it creates. This can, however, be a
3861 * useful debugging aid. In Mesa debug builds or release builds when
3862 * MESA_GLSL is set at run-time, meaningful names will be generated.
3863 * Drivers can also force names to be generated by setting this field.
3864 * For example, the i965 driver may set it when INTEL_DEBUG=vs (to dump
3865 * vertex shader assembly) is set at run-time.
3867 bool GenerateTemporaryNames
;
3870 * Maximum value supported for an index in DrawElements and friends.
3872 * This must be at least (1ull<<24)-1. The default value is
3875 * \since ES 3.0 or GL_ARB_ES3_compatibility
3876 * \sa _mesa_init_constants
3878 GLuint64 MaxElementIndex
;
3881 * Disable interpretation of line continuations (lines ending with a
3882 * backslash character ('\') in GLSL source.
3884 GLboolean DisableGLSLLineContinuations
;
3886 /** GL_ARB_texture_multisample */
3887 GLint MaxColorTextureSamples
;
3888 GLint MaxDepthTextureSamples
;
3889 GLint MaxIntegerSamples
;
3892 * GL_EXT_texture_multisample_blit_scaled implementation assumes that
3893 * samples are laid out in a rectangular grid roughly corresponding to
3894 * sample locations within a pixel. Below SampleMap{2,4,8}x variables
3895 * are used to map indices of rectangular grid to sample numbers within
3896 * a pixel. This mapping of indices to sample numbers must be initialized
3897 * by the driver for the target hardware. For example, if we have the 8X
3898 * MSAA sample number layout (sample positions) for XYZ hardware:
3900 * sample indices layout sample number layout
3901 * --------- ---------
3902 * | 0 | 1 | | a | b |
3903 * --------- ---------
3904 * | 2 | 3 | | c | d |
3905 * --------- ---------
3906 * | 4 | 5 | | e | f |
3907 * --------- ---------
3908 * | 6 | 7 | | g | h |
3909 * --------- ---------
3911 * Where a,b,c,d,e,f,g,h are integers between [0-7].
3913 * Then, initialize the SampleMap8x variable for XYZ hardware as shown
3915 * SampleMap8x = {a, b, c, d, e, f, g, h};
3917 * Follow the logic for sample counts 2-8.
3919 * For 16x the sample indices layout as a 4x4 grid as follows:
3931 uint8_t SampleMap2x
[2];
3932 uint8_t SampleMap4x
[4];
3933 uint8_t SampleMap8x
[8];
3934 uint8_t SampleMap16x
[16];
3936 /** GL_ARB_shader_atomic_counters */
3937 GLuint MaxAtomicBufferBindings
;
3938 GLuint MaxAtomicBufferSize
;
3939 GLuint MaxCombinedAtomicBuffers
;
3940 GLuint MaxCombinedAtomicCounters
;
3942 /** GL_ARB_vertex_attrib_binding */
3943 GLint MaxVertexAttribRelativeOffset
;
3944 GLint MaxVertexAttribBindings
;
3946 /* GL_ARB_shader_image_load_store */
3947 GLuint MaxImageUnits
;
3948 GLuint MaxCombinedShaderOutputResources
;
3949 GLuint MaxImageSamples
;
3950 GLuint MaxCombinedImageUniforms
;
3952 /** GL_ARB_compute_shader */
3953 GLuint MaxComputeWorkGroupCount
[3]; /* Array of x, y, z dimensions */
3954 GLuint MaxComputeWorkGroupSize
[3]; /* Array of x, y, z dimensions */
3955 GLuint MaxComputeWorkGroupInvocations
;
3956 GLuint MaxComputeSharedMemorySize
;
3958 /** GL_ARB_compute_variable_group_size */
3959 GLuint MaxComputeVariableGroupSize
[3]; /* Array of x, y, z dimensions */
3960 GLuint MaxComputeVariableGroupInvocations
;
3962 /** GL_ARB_gpu_shader5 */
3963 GLfloat MinFragmentInterpolationOffset
;
3964 GLfloat MaxFragmentInterpolationOffset
;
3966 GLboolean FakeSWMSAA
;
3968 /** GL_KHR_context_flush_control */
3969 GLenum ContextReleaseBehavior
;
3971 struct gl_shader_compiler_options ShaderCompilerOptions
[MESA_SHADER_STAGES
];
3973 /** GL_ARB_tessellation_shader */
3974 GLuint MaxPatchVertices
;
3975 GLuint MaxTessGenLevel
;
3976 GLuint MaxTessPatchComponents
;
3977 GLuint MaxTessControlTotalOutputComponents
;
3978 bool LowerTessLevel
; /**< Lower gl_TessLevel* from float[n] to vecn? */
3979 bool LowerTCSPatchVerticesIn
; /**< Lower gl_PatchVerticesIn to a uniform */
3980 bool LowerTESPatchVerticesIn
; /**< Lower gl_PatchVerticesIn to a uniform */
3981 bool PrimitiveRestartForPatches
;
3982 bool LowerCsDerivedVariables
; /**< Lower gl_GlobalInvocationID and
3983 * gl_LocalInvocationIndex based on
3984 * other builtin variables. */
3986 /** GL_OES_primitive_bounding_box */
3987 bool NoPrimitiveBoundingBoxOutput
;
3989 /** GL_ARB_sparse_buffer */
3990 GLuint SparseBufferPageSize
;
3992 /** Used as an input for sha1 generation in the on-disk shader cache */
3993 unsigned char *dri_config_options_sha1
;
3995 /** When drivers are OK with mapped buffers during draw and other calls. */
3996 bool AllowMappedBuffersDuringExecution
;
4001 * Enable flag for each OpenGL extension. Different device drivers will
4002 * enable different extensions at runtime.
4004 struct gl_extensions
4006 GLboolean dummy
; /* don't remove this! */
4007 GLboolean dummy_true
; /* Set true by _mesa_init_extensions(). */
4008 GLboolean dummy_false
; /* Set false by _mesa_init_extensions(). */
4009 GLboolean ANGLE_texture_compression_dxt
;
4010 GLboolean ARB_ES2_compatibility
;
4011 GLboolean ARB_ES3_compatibility
;
4012 GLboolean ARB_ES3_1_compatibility
;
4013 GLboolean ARB_ES3_2_compatibility
;
4014 GLboolean ARB_arrays_of_arrays
;
4015 GLboolean ARB_base_instance
;
4016 GLboolean ARB_bindless_texture
;
4017 GLboolean ARB_blend_func_extended
;
4018 GLboolean ARB_buffer_storage
;
4019 GLboolean ARB_clear_texture
;
4020 GLboolean ARB_clip_control
;
4021 GLboolean ARB_color_buffer_float
;
4022 GLboolean ARB_compute_shader
;
4023 GLboolean ARB_compute_variable_group_size
;
4024 GLboolean ARB_conditional_render_inverted
;
4025 GLboolean ARB_conservative_depth
;
4026 GLboolean ARB_copy_image
;
4027 GLboolean ARB_cull_distance
;
4028 GLboolean ARB_depth_buffer_float
;
4029 GLboolean ARB_depth_clamp
;
4030 GLboolean ARB_depth_texture
;
4031 GLboolean ARB_derivative_control
;
4032 GLboolean ARB_draw_buffers_blend
;
4033 GLboolean ARB_draw_elements_base_vertex
;
4034 GLboolean ARB_draw_indirect
;
4035 GLboolean ARB_draw_instanced
;
4036 GLboolean ARB_fragment_coord_conventions
;
4037 GLboolean ARB_fragment_layer_viewport
;
4038 GLboolean ARB_fragment_program
;
4039 GLboolean ARB_fragment_program_shadow
;
4040 GLboolean ARB_fragment_shader
;
4041 GLboolean ARB_framebuffer_no_attachments
;
4042 GLboolean ARB_framebuffer_object
;
4043 GLboolean ARB_enhanced_layouts
;
4044 GLboolean ARB_explicit_attrib_location
;
4045 GLboolean ARB_explicit_uniform_location
;
4046 GLboolean ARB_gpu_shader5
;
4047 GLboolean ARB_gpu_shader_fp64
;
4048 GLboolean ARB_gpu_shader_int64
;
4049 GLboolean ARB_half_float_vertex
;
4050 GLboolean ARB_indirect_parameters
;
4051 GLboolean ARB_instanced_arrays
;
4052 GLboolean ARB_internalformat_query
;
4053 GLboolean ARB_internalformat_query2
;
4054 GLboolean ARB_map_buffer_range
;
4055 GLboolean ARB_occlusion_query
;
4056 GLboolean ARB_occlusion_query2
;
4057 GLboolean ARB_pipeline_statistics_query
;
4058 GLboolean ARB_point_sprite
;
4059 GLboolean ARB_polygon_offset_clamp
;
4060 GLboolean ARB_post_depth_coverage
;
4061 GLboolean ARB_query_buffer_object
;
4062 GLboolean ARB_robust_buffer_access_behavior
;
4063 GLboolean ARB_sample_shading
;
4064 GLboolean ARB_seamless_cube_map
;
4065 GLboolean ARB_shader_atomic_counter_ops
;
4066 GLboolean ARB_shader_atomic_counters
;
4067 GLboolean ARB_shader_ballot
;
4068 GLboolean ARB_shader_bit_encoding
;
4069 GLboolean ARB_shader_clock
;
4070 GLboolean ARB_shader_draw_parameters
;
4071 GLboolean ARB_shader_group_vote
;
4072 GLboolean ARB_shader_image_load_store
;
4073 GLboolean ARB_shader_image_size
;
4074 GLboolean ARB_shader_precision
;
4075 GLboolean ARB_shader_stencil_export
;
4076 GLboolean ARB_shader_storage_buffer_object
;
4077 GLboolean ARB_shader_texture_image_samples
;
4078 GLboolean ARB_shader_texture_lod
;
4079 GLboolean ARB_shader_viewport_layer_array
;
4080 GLboolean ARB_shading_language_packing
;
4081 GLboolean ARB_shading_language_420pack
;
4082 GLboolean ARB_shadow
;
4083 GLboolean ARB_sparse_buffer
;
4084 GLboolean ARB_stencil_texturing
;
4086 GLboolean ARB_tessellation_shader
;
4087 GLboolean ARB_texture_border_clamp
;
4088 GLboolean ARB_texture_buffer_object
;
4089 GLboolean ARB_texture_buffer_object_rgb32
;
4090 GLboolean ARB_texture_buffer_range
;
4091 GLboolean ARB_texture_compression_bptc
;
4092 GLboolean ARB_texture_compression_rgtc
;
4093 GLboolean ARB_texture_cube_map
;
4094 GLboolean ARB_texture_cube_map_array
;
4095 GLboolean ARB_texture_env_combine
;
4096 GLboolean ARB_texture_env_crossbar
;
4097 GLboolean ARB_texture_env_dot3
;
4098 GLboolean ARB_texture_filter_anisotropic
;
4099 GLboolean ARB_texture_float
;
4100 GLboolean ARB_texture_gather
;
4101 GLboolean ARB_texture_mirror_clamp_to_edge
;
4102 GLboolean ARB_texture_multisample
;
4103 GLboolean ARB_texture_non_power_of_two
;
4104 GLboolean ARB_texture_stencil8
;
4105 GLboolean ARB_texture_query_levels
;
4106 GLboolean ARB_texture_query_lod
;
4107 GLboolean ARB_texture_rg
;
4108 GLboolean ARB_texture_rgb10_a2ui
;
4109 GLboolean ARB_texture_view
;
4110 GLboolean ARB_timer_query
;
4111 GLboolean ARB_transform_feedback2
;
4112 GLboolean ARB_transform_feedback3
;
4113 GLboolean ARB_transform_feedback_instanced
;
4114 GLboolean ARB_transform_feedback_overflow_query
;
4115 GLboolean ARB_uniform_buffer_object
;
4116 GLboolean ARB_vertex_attrib_64bit
;
4117 GLboolean ARB_vertex_program
;
4118 GLboolean ARB_vertex_shader
;
4119 GLboolean ARB_vertex_type_10f_11f_11f_rev
;
4120 GLboolean ARB_vertex_type_2_10_10_10_rev
;
4121 GLboolean ARB_viewport_array
;
4122 GLboolean EXT_blend_color
;
4123 GLboolean EXT_blend_equation_separate
;
4124 GLboolean EXT_blend_func_separate
;
4125 GLboolean EXT_blend_minmax
;
4126 GLboolean EXT_depth_bounds_test
;
4127 GLboolean EXT_draw_buffers2
;
4128 GLboolean EXT_framebuffer_multisample
;
4129 GLboolean EXT_framebuffer_multisample_blit_scaled
;
4130 GLboolean EXT_framebuffer_sRGB
;
4131 GLboolean EXT_gpu_program_parameters
;
4132 GLboolean EXT_gpu_shader4
;
4133 GLboolean EXT_memory_object
;
4134 GLboolean EXT_memory_object_fd
;
4135 GLboolean EXT_packed_float
;
4136 GLboolean EXT_pixel_buffer_object
;
4137 GLboolean EXT_point_parameters
;
4138 GLboolean EXT_provoking_vertex
;
4139 GLboolean EXT_shader_integer_mix
;
4140 GLboolean EXT_shader_samples_identical
;
4141 GLboolean EXT_stencil_two_side
;
4142 GLboolean EXT_texture_array
;
4143 GLboolean EXT_texture_compression_latc
;
4144 GLboolean EXT_texture_compression_s3tc
;
4145 GLboolean EXT_texture_env_dot3
;
4146 GLboolean EXT_texture_filter_anisotropic
;
4147 GLboolean EXT_texture_integer
;
4148 GLboolean EXT_texture_mirror_clamp
;
4149 GLboolean EXT_texture_shared_exponent
;
4150 GLboolean EXT_texture_snorm
;
4151 GLboolean EXT_texture_sRGB
;
4152 GLboolean EXT_texture_sRGB_decode
;
4153 GLboolean EXT_texture_swizzle
;
4154 GLboolean EXT_transform_feedback
;
4155 GLboolean EXT_timer_query
;
4156 GLboolean EXT_vertex_array_bgra
;
4157 GLboolean EXT_window_rectangles
;
4158 GLboolean OES_copy_image
;
4159 GLboolean OES_primitive_bounding_box
;
4160 GLboolean OES_sample_variables
;
4161 GLboolean OES_standard_derivatives
;
4162 GLboolean OES_texture_buffer
;
4163 GLboolean OES_texture_cube_map_array
;
4164 GLboolean OES_viewport_array
;
4165 /* vendor extensions */
4166 GLboolean AMD_performance_monitor
;
4167 GLboolean AMD_pinned_memory
;
4168 GLboolean AMD_seamless_cubemap_per_texture
;
4169 GLboolean AMD_vertex_shader_layer
;
4170 GLboolean AMD_vertex_shader_viewport_index
;
4171 GLboolean ANDROID_extension_pack_es31a
;
4172 GLboolean APPLE_object_purgeable
;
4173 GLboolean ATI_meminfo
;
4174 GLboolean ATI_texture_compression_3dc
;
4175 GLboolean ATI_texture_mirror_once
;
4176 GLboolean ATI_texture_env_combine3
;
4177 GLboolean ATI_fragment_shader
;
4178 GLboolean ATI_separate_stencil
;
4179 GLboolean GREMEDY_string_marker
;
4180 GLboolean INTEL_conservative_rasterization
;
4181 GLboolean INTEL_performance_query
;
4182 GLboolean KHR_blend_equation_advanced
;
4183 GLboolean KHR_blend_equation_advanced_coherent
;
4184 GLboolean KHR_robustness
;
4185 GLboolean KHR_texture_compression_astc_hdr
;
4186 GLboolean KHR_texture_compression_astc_ldr
;
4187 GLboolean KHR_texture_compression_astc_sliced_3d
;
4188 GLboolean MESA_pack_invert
;
4189 GLboolean MESA_shader_framebuffer_fetch
;
4190 GLboolean MESA_shader_framebuffer_fetch_non_coherent
;
4191 GLboolean MESA_shader_integer_functions
;
4192 GLboolean MESA_ycbcr_texture
;
4193 GLboolean NV_conditional_render
;
4194 GLboolean NV_fill_rectangle
;
4195 GLboolean NV_fog_distance
;
4196 GLboolean NV_point_sprite
;
4197 GLboolean NV_primitive_restart
;
4198 GLboolean NV_texture_barrier
;
4199 GLboolean NV_texture_env_combine4
;
4200 GLboolean NV_texture_rectangle
;
4201 GLboolean NV_vdpau_interop
;
4202 GLboolean NVX_gpu_memory_info
;
4203 GLboolean TDFX_texture_compression_FXT1
;
4204 GLboolean OES_EGL_image
;
4205 GLboolean OES_draw_texture
;
4206 GLboolean OES_depth_texture_cube_map
;
4207 GLboolean OES_EGL_image_external
;
4208 GLboolean OES_texture_float
;
4209 GLboolean OES_texture_float_linear
;
4210 GLboolean OES_texture_half_float
;
4211 GLboolean OES_texture_half_float_linear
;
4212 GLboolean OES_compressed_ETC1_RGB8_texture
;
4213 GLboolean OES_geometry_shader
;
4214 GLboolean OES_texture_compression_astc
;
4215 GLboolean extension_sentinel
;
4216 /** The extension string */
4217 const GLubyte
*String
;
4218 /** Number of supported extensions */
4221 * The context version which extension helper functions compare against.
4222 * By default, the value is equal to ctx->Version. This changes to ~0
4223 * while meta is in progress.
4230 * A stack of matrices (projection, modelview, color, texture, etc).
4232 struct gl_matrix_stack
4234 GLmatrix
*Top
; /**< points into Stack */
4235 GLmatrix
*Stack
; /**< array [MaxDepth] of GLmatrix */
4236 unsigned StackSize
; /**< Number of elements in Stack */
4237 GLuint Depth
; /**< 0 <= Depth < MaxDepth */
4238 GLuint MaxDepth
; /**< size of Stack[] array */
4239 GLuint DirtyFlag
; /**< _NEW_MODELVIEW or _NEW_PROJECTION, for example */
4244 * \name Bits for image transfer operations
4245 * \sa __struct gl_contextRec::ImageTransferState.
4248 #define IMAGE_SCALE_BIAS_BIT 0x1
4249 #define IMAGE_SHIFT_OFFSET_BIT 0x2
4250 #define IMAGE_MAP_COLOR_BIT 0x4
4251 #define IMAGE_CLAMP_BIT 0x800
4254 /** Pixel Transfer ops */
4255 #define IMAGE_BITS (IMAGE_SCALE_BIAS_BIT | \
4256 IMAGE_SHIFT_OFFSET_BIT | \
4257 IMAGE_MAP_COLOR_BIT)
4260 * \name Bits to indicate what state has changed.
4263 #define _NEW_MODELVIEW (1u << 0) /**< gl_context::ModelView */
4264 #define _NEW_PROJECTION (1u << 1) /**< gl_context::Projection */
4265 #define _NEW_TEXTURE_MATRIX (1u << 2) /**< gl_context::TextureMatrix */
4266 #define _NEW_COLOR (1u << 3) /**< gl_context::Color */
4267 #define _NEW_DEPTH (1u << 4) /**< gl_context::Depth */
4268 #define _NEW_EVAL (1u << 5) /**< gl_context::Eval, EvalMap */
4269 #define _NEW_FOG (1u << 6) /**< gl_context::Fog */
4270 #define _NEW_HINT (1u << 7) /**< gl_context::Hint */
4271 #define _NEW_LIGHT (1u << 8) /**< gl_context::Light */
4272 #define _NEW_LINE (1u << 9) /**< gl_context::Line */
4273 #define _NEW_PIXEL (1u << 10) /**< gl_context::Pixel */
4274 #define _NEW_POINT (1u << 11) /**< gl_context::Point */
4275 #define _NEW_POLYGON (1u << 12) /**< gl_context::Polygon */
4276 #define _NEW_POLYGONSTIPPLE (1u << 13) /**< gl_context::PolygonStipple */
4277 #define _NEW_SCISSOR (1u << 14) /**< gl_context::Scissor */
4278 #define _NEW_STENCIL (1u << 15) /**< gl_context::Stencil */
4279 #define _NEW_TEXTURE_OBJECT (1u << 16) /**< gl_context::Texture (bindings only) */
4280 #define _NEW_TRANSFORM (1u << 17) /**< gl_context::Transform */
4281 #define _NEW_VIEWPORT (1u << 18) /**< gl_context::Viewport */
4282 #define _NEW_TEXTURE_STATE (1u << 19) /**< gl_context::Texture (states only) */
4283 #define _NEW_ARRAY (1u << 20) /**< gl_context::Array */
4284 #define _NEW_RENDERMODE (1u << 21) /**< gl_context::RenderMode, etc */
4285 #define _NEW_BUFFERS (1u << 22) /**< gl_context::Visual, DrawBuffer, */
4286 #define _NEW_CURRENT_ATTRIB (1u << 23) /**< gl_context::Current */
4287 #define _NEW_MULTISAMPLE (1u << 24) /**< gl_context::Multisample */
4288 #define _NEW_TRACK_MATRIX (1u << 25) /**< gl_context::VertexProgram */
4289 #define _NEW_PROGRAM (1u << 26) /**< New program/shader state */
4290 #define _NEW_PROGRAM_CONSTANTS (1u << 27)
4292 #define _NEW_FRAG_CLAMP (1u << 29)
4293 /* gap, re-use for core Mesa state only; use ctx->DriverFlags otherwise */
4294 #define _NEW_VARYING_VP_INPUTS (1u << 31) /**< gl_context::varying_vp_inputs */
4300 * Composite state flags
4303 #define _NEW_TEXTURE (_NEW_TEXTURE_OBJECT | _NEW_TEXTURE_STATE)
4305 #define _MESA_NEW_NEED_EYE_COORDS (_NEW_LIGHT | \
4306 _NEW_TEXTURE_STATE | \
4311 #define _MESA_NEW_SEPARATE_SPECULAR (_NEW_LIGHT | \
4321 /* This has to be included here. */
4326 * Display list flags.
4327 * Strictly this is a tnl-private concept, but it doesn't seem
4328 * worthwhile adding a tnl private structure just to hold this one bit
4331 #define DLIST_DANGLING_REFS 0x1
4334 /** Opaque declaration of display list payload data type */
4335 union gl_dlist_node
;
4339 * Provide a location where information about a display list can be
4340 * collected. Could be extended with driverPrivate structures,
4341 * etc. in the future.
4343 struct gl_display_list
4346 GLbitfield Flags
; /**< DLIST_x flags */
4347 GLchar
*Label
; /**< GL_KHR_debug */
4348 /** The dlist commands are in a linked list of nodes */
4349 union gl_dlist_node
*Head
;
4354 * State used during display list compilation and execution.
4356 struct gl_dlist_state
4358 struct gl_display_list
*CurrentList
; /**< List currently being compiled */
4359 union gl_dlist_node
*CurrentBlock
; /**< Pointer to current block of nodes */
4360 GLuint CurrentPos
; /**< Index into current block of nodes */
4361 GLuint CallDepth
; /**< Current recursion calling depth */
4363 GLvertexformat ListVtxfmt
;
4365 GLubyte ActiveAttribSize
[VERT_ATTRIB_MAX
];
4366 GLfloat CurrentAttrib
[VERT_ATTRIB_MAX
][4];
4368 GLubyte ActiveMaterialSize
[MAT_ATTRIB_MAX
];
4369 GLfloat CurrentMaterial
[MAT_ATTRIB_MAX
][4];
4372 /* State known to have been set by the currently-compiling display
4373 * list. Used to eliminate some redundant state changes.
4381 * These are a mapping of the GL_ARB_debug_output/GL_KHR_debug enums
4382 * to small enums suitable for use as an array index.
4385 enum mesa_debug_source
{
4386 MESA_DEBUG_SOURCE_API
,
4387 MESA_DEBUG_SOURCE_WINDOW_SYSTEM
,
4388 MESA_DEBUG_SOURCE_SHADER_COMPILER
,
4389 MESA_DEBUG_SOURCE_THIRD_PARTY
,
4390 MESA_DEBUG_SOURCE_APPLICATION
,
4391 MESA_DEBUG_SOURCE_OTHER
,
4392 MESA_DEBUG_SOURCE_COUNT
4395 enum mesa_debug_type
{
4396 MESA_DEBUG_TYPE_ERROR
,
4397 MESA_DEBUG_TYPE_DEPRECATED
,
4398 MESA_DEBUG_TYPE_UNDEFINED
,
4399 MESA_DEBUG_TYPE_PORTABILITY
,
4400 MESA_DEBUG_TYPE_PERFORMANCE
,
4401 MESA_DEBUG_TYPE_OTHER
,
4402 MESA_DEBUG_TYPE_MARKER
,
4403 MESA_DEBUG_TYPE_PUSH_GROUP
,
4404 MESA_DEBUG_TYPE_POP_GROUP
,
4405 MESA_DEBUG_TYPE_COUNT
4408 enum mesa_debug_severity
{
4409 MESA_DEBUG_SEVERITY_LOW
,
4410 MESA_DEBUG_SEVERITY_MEDIUM
,
4411 MESA_DEBUG_SEVERITY_HIGH
,
4412 MESA_DEBUG_SEVERITY_NOTIFICATION
,
4413 MESA_DEBUG_SEVERITY_COUNT
4419 * Driver-specific state flags.
4421 * These are or'd with gl_context::NewDriverState to notify a driver about
4422 * a state change. The driver sets the flags at context creation and
4423 * the meaning of the bits set is opaque to core Mesa.
4425 struct gl_driver_flags
4427 /** gl_context::Array::_DrawArrays (vertex array state) */
4430 /** gl_context::TransformFeedback::CurrentObject */
4431 uint64_t NewTransformFeedback
;
4433 /** gl_context::TransformFeedback::CurrentObject::shader_program */
4434 uint64_t NewTransformFeedbackProg
;
4436 /** gl_context::RasterDiscard */
4437 uint64_t NewRasterizerDiscard
;
4440 * gl_context::UniformBufferBindings
4441 * gl_shader_program::UniformBlocks
4443 uint64_t NewUniformBuffer
;
4446 * gl_context::ShaderStorageBufferBindings
4447 * gl_shader_program::ShaderStorageBlocks
4449 uint64_t NewShaderStorageBuffer
;
4451 uint64_t NewTextureBuffer
;
4454 * gl_context::AtomicBufferBindings
4456 uint64_t NewAtomicBuffer
;
4459 * gl_context::ImageUnits
4461 uint64_t NewImageUnits
;
4464 * gl_context::TessCtrlProgram::patch_default_*
4466 uint64_t NewDefaultTessLevels
;
4469 * gl_context::IntelConservativeRasterization
4471 uint64_t NewIntelConservativeRasterization
;
4474 * gl_context::Scissor::WindowRects
4476 uint64_t NewWindowRectangles
;
4478 /** gl_context::Color::sRGBEnabled */
4479 uint64_t NewFramebufferSRGB
;
4481 /** gl_context::Scissor::EnableFlags */
4482 uint64_t NewScissorTest
;
4484 /** gl_context::Scissor::ScissorArray */
4485 uint64_t NewScissorRect
;
4487 /** gl_context::Color::Alpha* */
4488 uint64_t NewAlphaTest
;
4490 /** gl_context::Color::Blend/Dither */
4493 /** gl_context::Color::BlendColor */
4494 uint64_t NewBlendColor
;
4496 /** gl_context::Color::Color/Index */
4497 uint64_t NewColorMask
;
4499 /** gl_context::Depth */
4502 /** gl_context::Color::LogicOp/ColorLogicOp/IndexLogicOp */
4503 uint64_t NewLogicOp
;
4505 /** gl_context::Multisample::Enabled */
4506 uint64_t NewMultisampleEnable
;
4508 /** gl_context::Multisample::SampleAlphaTo* */
4509 uint64_t NewSampleAlphaToXEnable
;
4511 /** gl_context::Multisample::SampleCoverage/SampleMaskValue */
4512 uint64_t NewSampleMask
;
4514 /** gl_context::Multisample::(Min)SampleShading */
4515 uint64_t NewSampleShading
;
4517 /** gl_context::Stencil */
4518 uint64_t NewStencil
;
4520 /** gl_context::Transform::ClipOrigin/ClipDepthMode */
4521 uint64_t NewClipControl
;
4523 /** gl_context::Transform::EyeUserPlane */
4524 uint64_t NewClipPlane
;
4526 /** gl_context::Transform::ClipPlanesEnabled */
4527 uint64_t NewClipPlaneEnable
;
4529 /** gl_context::Transform::DepthClamp */
4530 uint64_t NewDepthClamp
;
4532 /** gl_context::Line */
4533 uint64_t NewLineState
;
4535 /** gl_context::Polygon */
4536 uint64_t NewPolygonState
;
4538 /** gl_context::PolygonStipple */
4539 uint64_t NewPolygonStipple
;
4541 /** gl_context::ViewportArray */
4542 uint64_t NewViewport
;
4544 /** Shader constants (uniforms, program parameters, state constants) */
4545 uint64_t NewShaderConstants
[MESA_SHADER_STAGES
];
4548 struct gl_uniform_buffer_binding
4550 struct gl_buffer_object
*BufferObject
;
4551 /** Start of uniform block data in the buffer */
4553 /** Size of data allowed to be referenced from the buffer (in bytes) */
4556 * glBindBufferBase() indicates that the Size should be ignored and only
4557 * limited by the current size of the BufferObject.
4559 GLboolean AutomaticSize
;
4562 struct gl_shader_storage_buffer_binding
4564 struct gl_buffer_object
*BufferObject
;
4565 /** Start of shader storage block data in the buffer */
4567 /** Size of data allowed to be referenced from the buffer (in bytes) */
4570 * glBindBufferBase() indicates that the Size should be ignored and only
4571 * limited by the current size of the BufferObject.
4573 GLboolean AutomaticSize
;
4577 * ARB_shader_image_load_store image unit.
4579 struct gl_image_unit
4582 * Texture object bound to this unit.
4584 struct gl_texture_object
*TexObj
;
4587 * Level of the texture object bound to this unit.
4592 * \c GL_TRUE if the whole level is bound as an array of layers, \c
4593 * GL_FALSE if only some specific layer of the texture is bound.
4599 * Layer of the texture object bound to this unit as specified by the
4605 * Layer of the texture object bound to this unit, or zero if the
4606 * whole level is bound.
4611 * Access allowed to this texture image. Either \c GL_READ_ONLY,
4612 * \c GL_WRITE_ONLY or \c GL_READ_WRITE.
4617 * GL internal format that determines the interpretation of the
4618 * image memory when shader image operations are performed through
4624 * Mesa format corresponding to \c Format.
4626 mesa_format _ActualFormat
;
4631 * Binding point for an atomic counter buffer object.
4633 struct gl_atomic_buffer_binding
4635 struct gl_buffer_object
*BufferObject
;
4641 * Shader subroutines storage
4643 struct gl_subroutine_index_binding
4649 struct gl_texture_handle_object
4651 struct gl_texture_object
*texObj
;
4652 struct gl_sampler_object
*sampObj
;
4656 struct gl_image_handle_object
4658 struct gl_image_unit imgObj
;
4662 struct gl_memory_object
4664 GLuint Name
; /**< hash table ID/name */
4665 GLboolean Immutable
; /**< denotes mutability state of parameters */
4666 GLboolean Dedicated
; /**< import memory from a dedicated allocation */
4670 * Mesa rendering context.
4672 * This is the central context data structure for Mesa. Almost all
4673 * OpenGL state is contained in this structure.
4674 * Think of this as a base class from which device drivers will derive
4679 /** State possibly shared with other contexts in the address space */
4680 struct gl_shared_state
*Shared
;
4682 /** \name API function pointer tables */
4687 * The current dispatch table for non-displaylist-saving execution, either
4688 * BeginEnd or OutsideBeginEnd
4690 struct _glapi_table
*Exec
;
4692 * The normal dispatch table for non-displaylist-saving, non-begin/end
4694 struct _glapi_table
*OutsideBeginEnd
;
4695 /** The dispatch table used between glNewList() and glEndList() */
4696 struct _glapi_table
*Save
;
4698 * The dispatch table used between glBegin() and glEnd() (outside of a
4699 * display list). Only valid functions between those two are set, which is
4700 * mostly just the set in a GLvertexformat struct.
4702 struct _glapi_table
*BeginEnd
;
4704 * Dispatch table for when a graphics reset has happened.
4706 struct _glapi_table
*ContextLost
;
4708 * Dispatch table used to marshal API calls from the client program to a
4709 * separate server thread. NULL if API calls are not being marshalled to
4712 struct _glapi_table
*MarshalExec
;
4714 * Dispatch table currently in use for fielding API calls from the client
4715 * program. If API calls are being marshalled to another thread, this ==
4716 * MarshalExec. Otherwise it == CurrentServerDispatch.
4718 struct _glapi_table
*CurrentClientDispatch
;
4721 * Dispatch table currently in use for performing API calls. == Save or
4724 struct _glapi_table
*CurrentServerDispatch
;
4728 struct glthread_state
*GLThread
;
4730 struct gl_config Visual
;
4731 struct gl_framebuffer
*DrawBuffer
; /**< buffer for writing */
4732 struct gl_framebuffer
*ReadBuffer
; /**< buffer for reading */
4733 struct gl_framebuffer
*WinSysDrawBuffer
; /**< set with MakeCurrent */
4734 struct gl_framebuffer
*WinSysReadBuffer
; /**< set with MakeCurrent */
4737 * Device driver function pointer table
4739 struct dd_function_table Driver
;
4741 /** Core/Driver constants */
4742 struct gl_constants Const
;
4744 /** \name The various 4x4 matrix stacks */
4746 struct gl_matrix_stack ModelviewMatrixStack
;
4747 struct gl_matrix_stack ProjectionMatrixStack
;
4748 struct gl_matrix_stack TextureMatrixStack
[MAX_TEXTURE_UNITS
];
4749 struct gl_matrix_stack ProgramMatrixStack
[MAX_PROGRAM_MATRICES
];
4750 struct gl_matrix_stack
*CurrentStack
; /**< Points to one of the above stacks */
4753 /** Combined modelview and projection matrix */
4754 GLmatrix _ModelProjectMatrix
;
4756 /** \name Display lists */
4757 struct gl_dlist_state ListState
;
4759 GLboolean ExecuteFlag
; /**< Execute GL commands? */
4760 GLboolean CompileFlag
; /**< Compile GL commands into display list? */
4762 /** Extension information */
4763 struct gl_extensions Extensions
;
4765 /** GL version integer, for example 31 for GL 3.1, or 20 for GLES 2.0. */
4767 char *VersionString
;
4769 /** \name State attribute stack (for glPush/PopAttrib) */
4771 GLuint AttribStackDepth
;
4772 struct gl_attrib_node
*AttribStack
[MAX_ATTRIB_STACK_DEPTH
];
4775 /** \name Renderer attribute groups
4777 * We define a struct for each attribute group to make pushing and popping
4778 * attributes easy. Also it's a good organization.
4781 struct gl_accum_attrib Accum
; /**< Accum buffer attributes */
4782 struct gl_colorbuffer_attrib Color
; /**< Color buffer attributes */
4783 struct gl_current_attrib Current
; /**< Current attributes */
4784 struct gl_depthbuffer_attrib Depth
; /**< Depth buffer attributes */
4785 struct gl_eval_attrib Eval
; /**< Eval attributes */
4786 struct gl_fog_attrib Fog
; /**< Fog attributes */
4787 struct gl_hint_attrib Hint
; /**< Hint attributes */
4788 struct gl_light_attrib Light
; /**< Light attributes */
4789 struct gl_line_attrib Line
; /**< Line attributes */
4790 struct gl_list_attrib List
; /**< List attributes */
4791 struct gl_multisample_attrib Multisample
;
4792 struct gl_pixel_attrib Pixel
; /**< Pixel attributes */
4793 struct gl_point_attrib Point
; /**< Point attributes */
4794 struct gl_polygon_attrib Polygon
; /**< Polygon attributes */
4795 GLuint PolygonStipple
[32]; /**< Polygon stipple */
4796 struct gl_scissor_attrib Scissor
; /**< Scissor attributes */
4797 struct gl_stencil_attrib Stencil
; /**< Stencil buffer attributes */
4798 struct gl_texture_attrib Texture
; /**< Texture attributes */
4799 struct gl_transform_attrib Transform
; /**< Transformation attributes */
4800 struct gl_viewport_attrib ViewportArray
[MAX_VIEWPORTS
]; /**< Viewport attributes */
4803 /** \name Client attribute stack */
4805 GLuint ClientAttribStackDepth
;
4806 struct gl_attrib_node
*ClientAttribStack
[MAX_CLIENT_ATTRIB_STACK_DEPTH
];
4809 /** \name Client attribute groups */
4811 struct gl_array_attrib Array
; /**< Vertex arrays */
4812 struct gl_pixelstore_attrib Pack
; /**< Pixel packing */
4813 struct gl_pixelstore_attrib Unpack
; /**< Pixel unpacking */
4814 struct gl_pixelstore_attrib DefaultPacking
; /**< Default params */
4817 /** \name Other assorted state (not pushed/popped on attribute stack) */
4819 struct gl_pixelmaps PixelMaps
;
4821 struct gl_evaluators EvalMap
; /**< All evaluators */
4822 struct gl_feedback Feedback
; /**< Feedback */
4823 struct gl_selection Select
; /**< Selection */
4825 struct gl_program_state Program
; /**< general program state */
4826 struct gl_vertex_program_state VertexProgram
;
4827 struct gl_fragment_program_state FragmentProgram
;
4828 struct gl_geometry_program_state GeometryProgram
;
4829 struct gl_compute_program_state ComputeProgram
;
4830 struct gl_tess_ctrl_program_state TessCtrlProgram
;
4831 struct gl_tess_eval_program_state TessEvalProgram
;
4832 struct gl_ati_fragment_shader_state ATIFragmentShader
;
4834 struct gl_pipeline_shader_state Pipeline
; /**< GLSL pipeline shader object state */
4835 struct gl_pipeline_object Shader
; /**< GLSL shader object state */
4838 * Current active shader pipeline state
4840 * Almost all internal users want ::_Shader instead of ::Shader. The
4841 * exceptions are bits of legacy GLSL API that do not know about separate
4844 * If a program is active via \c glUseProgram, this will point to
4847 * If a program pipeline is active via \c glBindProgramPipeline, this will
4848 * point to \c ::Pipeline.Current.
4850 * If neither a program nor a program pipeline is active, this will point to
4851 * \c ::Pipeline.Default. This ensures that \c ::_Shader will never be
4854 struct gl_pipeline_object
*_Shader
;
4856 struct gl_query_state Query
; /**< occlusion, timer queries */
4858 struct gl_transform_feedback_state TransformFeedback
;
4860 struct gl_perf_monitor_state PerfMonitor
;
4861 struct gl_perf_query_state PerfQuery
;
4863 struct gl_buffer_object
*DrawIndirectBuffer
; /** < GL_ARB_draw_indirect */
4864 struct gl_buffer_object
*ParameterBuffer
; /** < GL_ARB_indirect_parameters */
4865 struct gl_buffer_object
*DispatchIndirectBuffer
; /** < GL_ARB_compute_shader */
4867 struct gl_buffer_object
*CopyReadBuffer
; /**< GL_ARB_copy_buffer */
4868 struct gl_buffer_object
*CopyWriteBuffer
; /**< GL_ARB_copy_buffer */
4870 struct gl_buffer_object
*QueryBuffer
; /**< GL_ARB_query_buffer_object */
4873 * Current GL_ARB_uniform_buffer_object binding referenced by
4874 * GL_UNIFORM_BUFFER target for glBufferData, glMapBuffer, etc.
4876 struct gl_buffer_object
*UniformBuffer
;
4879 * Current GL_ARB_shader_storage_buffer_object binding referenced by
4880 * GL_SHADER_STORAGE_BUFFER target for glBufferData, glMapBuffer, etc.
4882 struct gl_buffer_object
*ShaderStorageBuffer
;
4885 * Array of uniform buffers for GL_ARB_uniform_buffer_object and GL 3.1.
4886 * This is set up using glBindBufferRange() or glBindBufferBase(). They are
4887 * associated with uniform blocks by glUniformBlockBinding()'s state in the
4890 struct gl_uniform_buffer_binding
4891 UniformBufferBindings
[MAX_COMBINED_UNIFORM_BUFFERS
];
4894 * Array of shader storage buffers for ARB_shader_storage_buffer_object
4895 * and GL 4.3. This is set up using glBindBufferRange() or
4896 * glBindBufferBase(). They are associated with shader storage blocks by
4897 * glShaderStorageBlockBinding()'s state in the shader program.
4899 struct gl_shader_storage_buffer_binding
4900 ShaderStorageBufferBindings
[MAX_COMBINED_SHADER_STORAGE_BUFFERS
];
4903 * Object currently associated with the GL_ATOMIC_COUNTER_BUFFER
4906 struct gl_buffer_object
*AtomicBuffer
;
4909 * Object currently associated w/ the GL_EXTERNAL_VIRTUAL_MEMORY_BUFFER_AMD
4912 struct gl_buffer_object
*ExternalVirtualMemoryBuffer
;
4915 * Array of atomic counter buffer binding points.
4917 struct gl_atomic_buffer_binding
4918 AtomicBufferBindings
[MAX_COMBINED_ATOMIC_BUFFERS
];
4921 * Array of image units for ARB_shader_image_load_store.
4923 struct gl_image_unit ImageUnits
[MAX_IMAGE_UNITS
];
4925 struct gl_subroutine_index_binding SubroutineIndex
[MESA_SHADER_STAGES
];
4928 struct gl_meta_state
*Meta
; /**< for "meta" operations */
4930 /* GL_EXT_framebuffer_object */
4931 struct gl_renderbuffer
*CurrentRenderbuffer
;
4933 GLenum ErrorValue
; /**< Last error code */
4936 * Recognize and silence repeated error debug messages in buggy apps.
4938 const char *ErrorDebugFmtString
;
4939 GLuint ErrorDebugCount
;
4941 /* GL_ARB_debug_output/GL_KHR_debug */
4943 struct gl_debug_state
*Debug
;
4945 GLenum RenderMode
; /**< either GL_RENDER, GL_SELECT, GL_FEEDBACK */
4946 GLbitfield NewState
; /**< bitwise-or of _NEW_* flags */
4947 uint64_t NewDriverState
; /**< bitwise-or of flags from DriverFlags */
4949 struct gl_driver_flags DriverFlags
;
4951 GLboolean ViewportInitialized
; /**< has viewport size been initialized? */
4953 GLbitfield64 varying_vp_inputs
; /**< mask of VERT_BIT_* flags */
4955 /** \name Derived state */
4956 GLbitfield _ImageTransferState
;/**< bitwise-or of IMAGE_*_BIT flags */
4957 GLfloat _EyeZDir
[3];
4958 GLfloat _ModelViewInvScale
;
4959 GLboolean _NeedEyeCoords
;
4960 GLboolean _ForceEyeCoords
;
4962 GLuint TextureStateTimestamp
; /**< detect changes to shared state */
4964 struct gl_list_extensions
*ListExt
; /**< driver dlist extensions */
4966 /** \name For debugging/development only */
4968 GLboolean FirstTimeCurrent
;
4972 * False if this context was created without a config. This is needed
4973 * because the initial state of glDrawBuffers depends on this
4975 GLboolean HasConfig
;
4977 /** software compression/decompression supported or not */
4978 GLboolean Mesa_DXTn
;
4980 GLboolean TextureFormatSupported
[MESA_FORMAT_COUNT
];
4982 GLboolean RasterDiscard
; /**< GL_RASTERIZER_DISCARD */
4983 GLboolean IntelConservativeRasterization
; /**< GL_INTEL_CONSERVATIVE_RASTERIZATION */
4985 /** Does glVertexAttrib(0) alias glVertex()? */
4986 bool _AttribZeroAliasesVertex
;
4989 * \name Hooks for module contexts.
4991 * These will eventually live in the driver or elsewhere.
4994 void *swrast_context
;
4995 void *swsetup_context
;
4996 void *swtnl_context
;
4997 struct vbo_context
*vbo_context
;
4998 struct st_context
*st
;
5003 * \name NV_vdpau_interop
5006 const void *vdpDevice
;
5007 const void *vdpGetProcAddress
;
5008 struct set
*vdpSurfaces
;
5012 * Has this context observed a GPU reset in any context in the share group?
5014 * Once this field becomes true, it is never reset to false.
5016 GLboolean ShareGroupReset
;
5019 * \name OES_primitive_bounding_box
5021 * Stores the arguments to glPrimitiveBoundingBox
5023 GLfloat PrimitiveBoundingBox
[8];
5025 struct disk_cache
*Cache
;
5028 * \name GL_ARB_bindless_texture
5031 struct hash_table_u64
*ResidentTextureHandles
;
5032 struct hash_table_u64
*ResidentImageHandles
;
5037 * Information about memory usage. All sizes are in kilobytes.
5039 struct gl_memory_info
5041 unsigned total_device_memory
; /**< size of device memory, e.g. VRAM */
5042 unsigned avail_device_memory
; /**< free device memory at the moment */
5043 unsigned total_staging_memory
; /**< size of staging memory, e.g. GART */
5044 unsigned avail_staging_memory
; /**< free staging memory at the moment */
5045 unsigned device_memory_evicted
; /**< size of memory evicted (monotonic counter) */
5046 unsigned nr_device_memory_evictions
; /**< # of evictions (monotonic counter) */
5050 extern int MESA_VERBOSE
;
5051 extern int MESA_DEBUG_FLAGS
;
5052 # define MESA_FUNCTION __func__
5054 # define MESA_VERBOSE 0
5055 # define MESA_DEBUG_FLAGS 0
5056 # define MESA_FUNCTION "a function"
5060 /** The MESA_VERBOSE var is a bitmask of these flags */
5063 VERBOSE_VARRAY
= 0x0001,
5064 VERBOSE_TEXTURE
= 0x0002,
5065 VERBOSE_MATERIAL
= 0x0004,
5066 VERBOSE_PIPELINE
= 0x0008,
5067 VERBOSE_DRIVER
= 0x0010,
5068 VERBOSE_STATE
= 0x0020,
5069 VERBOSE_API
= 0x0040,
5070 VERBOSE_DISPLAY_LIST
= 0x0100,
5071 VERBOSE_LIGHTING
= 0x0200,
5072 VERBOSE_PRIMS
= 0x0400,
5073 VERBOSE_VERTS
= 0x0800,
5074 VERBOSE_DISASSEM
= 0x1000,
5075 VERBOSE_DRAW
= 0x2000,
5076 VERBOSE_SWAPBUFFERS
= 0x4000
5080 /** The MESA_DEBUG_FLAGS var is a bitmask of these flags */
5083 DEBUG_SILENT
= (1 << 0),
5084 DEBUG_ALWAYS_FLUSH
= (1 << 1),
5085 DEBUG_INCOMPLETE_TEXTURE
= (1 << 2),
5086 DEBUG_INCOMPLETE_FBO
= (1 << 3),
5087 DEBUG_CONTEXT
= (1 << 4)
5094 #endif /* MTYPES_H */