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 struct util_dynarray Handles
;
994 bool HandleAllocated
;
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 */
1015 bool StencilSampling
; /**< Should we sample stencil instead of depth? */
1017 GLfloat Priority
; /**< in [0,1] */
1018 GLint BaseLevel
; /**< min mipmap level, OpenGL 1.2 */
1019 GLint MaxLevel
; /**< max mipmap level, OpenGL 1.2 */
1020 GLint ImmutableLevels
; /**< ES 3.0 / ARB_texture_view */
1021 GLint _MaxLevel
; /**< actual max mipmap level (q in the spec) */
1022 GLfloat _MaxLambda
; /**< = _MaxLevel - BaseLevel (q - p in spec) */
1023 GLint CropRect
[4]; /**< GL_OES_draw_texture */
1024 GLenum Swizzle
[4]; /**< GL_EXT_texture_swizzle */
1025 GLuint _Swizzle
; /**< same as Swizzle, but SWIZZLE_* format */
1026 GLboolean GenerateMipmap
; /**< GL_SGIS_generate_mipmap */
1027 GLboolean _BaseComplete
; /**< Is the base texture level valid? */
1028 GLboolean _MipmapComplete
; /**< Is the whole mipmap valid? */
1029 GLboolean _IsIntegerFormat
; /**< Does the texture store integer values? */
1030 GLboolean _RenderToTexture
; /**< Any rendering to this texture? */
1031 GLboolean Purgeable
; /**< Is the buffer purgeable under memory
1033 GLboolean Immutable
; /**< GL_ARB_texture_storage */
1034 GLboolean _IsFloat
; /**< GL_OES_float_texture */
1035 GLboolean _IsHalfFloat
; /**< GL_OES_half_float_texture */
1037 GLuint MinLevel
; /**< GL_ARB_texture_view */
1038 GLuint MinLayer
; /**< GL_ARB_texture_view */
1039 GLuint NumLevels
; /**< GL_ARB_texture_view */
1040 GLuint NumLayers
; /**< GL_ARB_texture_view */
1042 /** Actual texture images, indexed by [cube face] and [mipmap level] */
1043 struct gl_texture_image
*Image
[MAX_FACES
][MAX_TEXTURE_LEVELS
];
1045 /** GL_ARB_texture_buffer_object */
1046 struct gl_buffer_object
*BufferObject
;
1047 GLenum BufferObjectFormat
;
1048 /** Equivalent Mesa format for BufferObjectFormat. */
1049 mesa_format _BufferObjectFormat
;
1050 /** GL_ARB_texture_buffer_range */
1051 GLintptr BufferOffset
;
1052 GLsizeiptr BufferSize
; /**< if this is -1, use BufferObject->Size instead */
1054 /** GL_OES_EGL_image_external */
1055 GLint RequiredTextureImageUnits
;
1057 /** GL_ARB_shader_image_load_store */
1058 GLenum ImageFormatCompatibilityType
;
1060 /** GL_ARB_bindless_texture */
1061 struct util_dynarray SamplerHandles
;
1062 struct util_dynarray ImageHandles
;
1063 bool HandleAllocated
;
1067 /** Up to four combiner sources are possible with GL_NV_texture_env_combine4 */
1068 #define MAX_COMBINER_TERMS 4
1072 * Texture combine environment state.
1074 struct gl_tex_env_combine_state
1076 GLenum ModeRGB
; /**< GL_REPLACE, GL_DECAL, GL_ADD, etc. */
1077 GLenum ModeA
; /**< GL_REPLACE, GL_DECAL, GL_ADD, etc. */
1078 /** Source terms: GL_PRIMARY_COLOR, GL_TEXTURE, etc */
1079 GLenum SourceRGB
[MAX_COMBINER_TERMS
];
1080 GLenum SourceA
[MAX_COMBINER_TERMS
];
1081 /** Source operands: GL_SRC_COLOR, GL_ONE_MINUS_SRC_COLOR, etc */
1082 GLenum OperandRGB
[MAX_COMBINER_TERMS
];
1083 GLenum OperandA
[MAX_COMBINER_TERMS
];
1084 GLuint ScaleShiftRGB
; /**< 0, 1 or 2 */
1085 GLuint ScaleShiftA
; /**< 0, 1 or 2 */
1086 GLuint _NumArgsRGB
; /**< Number of inputs used for the RGB combiner */
1087 GLuint _NumArgsA
; /**< Number of inputs used for the A combiner */
1091 /** Compressed TexEnv effective Combine mode */
1092 enum gl_tex_env_mode
1094 TEXENV_MODE_REPLACE
, /* r = a0 */
1095 TEXENV_MODE_MODULATE
, /* r = a0 * a1 */
1096 TEXENV_MODE_ADD
, /* r = a0 + a1 */
1097 TEXENV_MODE_ADD_SIGNED
, /* r = a0 + a1 - 0.5 */
1098 TEXENV_MODE_INTERPOLATE
, /* r = a0 * a2 + a1 * (1 - a2) */
1099 TEXENV_MODE_SUBTRACT
, /* r = a0 - a1 */
1100 TEXENV_MODE_DOT3_RGB
, /* r = a0 . a1 */
1101 TEXENV_MODE_DOT3_RGB_EXT
, /* r = a0 . a1 */
1102 TEXENV_MODE_DOT3_RGBA
, /* r = a0 . a1 */
1103 TEXENV_MODE_DOT3_RGBA_EXT
, /* r = a0 . a1 */
1104 TEXENV_MODE_MODULATE_ADD_ATI
, /* r = a0 * a2 + a1 */
1105 TEXENV_MODE_MODULATE_SIGNED_ADD_ATI
, /* r = a0 * a2 + a1 - 0.5 */
1106 TEXENV_MODE_MODULATE_SUBTRACT_ATI
, /* r = a0 * a2 - a1 */
1107 TEXENV_MODE_ADD_PRODUCTS_NV
, /* r = a0 * a1 + a2 * a3 */
1108 TEXENV_MODE_ADD_PRODUCTS_SIGNED_NV
, /* r = a0 * a1 + a2 * a3 - 0.5 */
1112 /** Compressed TexEnv Combine source */
1113 enum gl_tex_env_source
1115 TEXENV_SRC_TEXTURE0
,
1116 TEXENV_SRC_TEXTURE1
,
1117 TEXENV_SRC_TEXTURE2
,
1118 TEXENV_SRC_TEXTURE3
,
1119 TEXENV_SRC_TEXTURE4
,
1120 TEXENV_SRC_TEXTURE5
,
1121 TEXENV_SRC_TEXTURE6
,
1122 TEXENV_SRC_TEXTURE7
,
1124 TEXENV_SRC_PREVIOUS
,
1125 TEXENV_SRC_PRIMARY_COLOR
,
1126 TEXENV_SRC_CONSTANT
,
1132 /** Compressed TexEnv Combine operand */
1133 enum gl_tex_env_operand
1136 TEXENV_OPR_ONE_MINUS_COLOR
,
1138 TEXENV_OPR_ONE_MINUS_ALPHA
,
1142 /** Compressed TexEnv Combine argument */
1143 struct gl_tex_env_argument
1146 __extension__
uint8_t Source
:4; /**< TEXENV_SRC_x */
1147 __extension__
uint8_t Operand
:2; /**< TEXENV_OPR_x */
1149 uint8_t Source
; /**< SRC_x */
1150 uint8_t Operand
; /**< OPR_x */
1156 * Compressed TexEnv Combine state.
1158 struct gl_tex_env_combine_packed
1160 uint32_t ModeRGB
:4; /**< Effective mode for RGB as 4 bits */
1161 uint32_t ModeA
:4; /**< Effective mode for RGB as 4 bits */
1162 uint32_t ScaleShiftRGB
:2; /**< 0, 1 or 2 */
1163 uint32_t ScaleShiftA
:2; /**< 0, 1 or 2 */
1164 uint32_t NumArgsRGB
:3; /**< Number of inputs used for the RGB combiner */
1165 uint32_t NumArgsA
:3; /**< Number of inputs used for the A combiner */
1166 /** Source arguments in a packed manner */
1167 struct gl_tex_env_argument ArgsRGB
[MAX_COMBINER_TERMS
];
1168 struct gl_tex_env_argument ArgsA
[MAX_COMBINER_TERMS
];
1173 * TexGenEnabled flags.
1180 #define STR_BITS (S_BIT | T_BIT | R_BIT)
1185 * Bit flag versions of the corresponding GL_ constants.
1188 #define TEXGEN_SPHERE_MAP 0x1
1189 #define TEXGEN_OBJ_LINEAR 0x2
1190 #define TEXGEN_EYE_LINEAR 0x4
1191 #define TEXGEN_REFLECTION_MAP_NV 0x8
1192 #define TEXGEN_NORMAL_MAP_NV 0x10
1194 #define TEXGEN_NEED_NORMALS (TEXGEN_SPHERE_MAP | \
1195 TEXGEN_REFLECTION_MAP_NV | \
1196 TEXGEN_NORMAL_MAP_NV)
1197 #define TEXGEN_NEED_EYE_COORD (TEXGEN_SPHERE_MAP | \
1198 TEXGEN_REFLECTION_MAP_NV | \
1199 TEXGEN_NORMAL_MAP_NV | \
1205 /** Tex-gen enabled for texture unit? */
1206 #define ENABLE_TEXGEN(unit) (1 << (unit))
1208 /** Non-identity texture matrix for texture unit? */
1209 #define ENABLE_TEXMAT(unit) (1 << (unit))
1213 * Texture coord generation state.
1217 GLenum Mode
; /**< GL_EYE_LINEAR, GL_SPHERE_MAP, etc */
1218 GLbitfield _ModeBit
; /**< TEXGEN_x bit corresponding to Mode */
1219 GLfloat ObjectPlane
[4];
1220 GLfloat EyePlane
[4];
1225 * Texture unit state. Contains enable flags, texture environment/function/
1226 * combiners, texgen state, and pointers to current texture objects.
1228 struct gl_texture_unit
1230 GLbitfield Enabled
; /**< bitmask of TEXTURE_*_BIT flags */
1232 GLenum EnvMode
; /**< GL_MODULATE, GL_DECAL, GL_BLEND, etc. */
1233 GLclampf EnvColor
[4];
1234 GLfloat EnvColorUnclamped
[4];
1236 struct gl_texgen GenS
;
1237 struct gl_texgen GenT
;
1238 struct gl_texgen GenR
;
1239 struct gl_texgen GenQ
;
1240 GLbitfield TexGenEnabled
; /**< Bitwise-OR of [STRQ]_BIT values */
1241 GLbitfield _GenFlags
; /**< Bitwise-OR of Gen[STRQ]._ModeBit */
1243 GLfloat LodBias
; /**< for biasing mipmap levels */
1245 /** Texture targets that have a non-default texture bound */
1246 GLbitfield _BoundTextures
;
1248 /** Current sampler object (GL_ARB_sampler_objects) */
1249 struct gl_sampler_object
*Sampler
;
1252 * \name GL_EXT_texture_env_combine
1254 struct gl_tex_env_combine_state Combine
;
1257 * Derived state based on \c EnvMode and the \c BaseFormat of the
1258 * currently enabled texture.
1260 struct gl_tex_env_combine_state _EnvMode
;
1263 * Currently enabled combiner state. This will point to either
1264 * \c Combine or \c _EnvMode.
1266 struct gl_tex_env_combine_state
*_CurrentCombine
;
1268 /** Current texture object pointers */
1269 struct gl_texture_object
*CurrentTex
[NUM_TEXTURE_TARGETS
];
1271 /** Points to highest priority, complete and enabled texture object */
1272 struct gl_texture_object
*_Current
;
1274 /** Current compressed TexEnv & Combine state */
1275 struct gl_tex_env_combine_packed _CurrentCombinePacked
;
1280 * Texture attribute group (GL_TEXTURE_BIT).
1282 struct gl_texture_attrib
1284 GLuint CurrentUnit
; /**< GL_ACTIVE_TEXTURE */
1286 /** GL_ARB_seamless_cubemap */
1287 GLboolean CubeMapSeamless
;
1289 struct gl_texture_object
*ProxyTex
[NUM_TEXTURE_TARGETS
];
1291 /** GL_ARB_texture_buffer_object */
1292 struct gl_buffer_object
*BufferObject
;
1294 /** Texture coord units/sets used for fragment texturing */
1295 GLbitfield _EnabledCoordUnits
;
1297 /** Texture coord units that have texgen enabled */
1298 GLbitfield _TexGenEnabled
;
1300 /** Texture coord units that have non-identity matrices */
1301 GLbitfield _TexMatEnabled
;
1303 /** Bitwise-OR of all Texture.Unit[i]._GenFlags */
1304 GLbitfield _GenFlags
;
1306 /** Largest index of a texture unit with _Current != NULL. */
1307 GLint _MaxEnabledTexImageUnit
;
1309 /** Largest index + 1 of texture units that have had any CurrentTex set. */
1310 GLint NumCurrentTexUsed
;
1312 struct gl_texture_unit Unit
[MAX_COMBINED_TEXTURE_IMAGE_UNITS
];
1317 * Data structure representing a single clip plane (e.g. one of the elements
1318 * of the ctx->Transform.EyeUserPlane or ctx->Transform._ClipUserPlane array).
1320 typedef GLfloat gl_clip_plane
[4];
1324 * Transformation attribute group (GL_TRANSFORM_BIT).
1326 struct gl_transform_attrib
1328 GLenum MatrixMode
; /**< Matrix mode */
1329 gl_clip_plane EyeUserPlane
[MAX_CLIP_PLANES
]; /**< User clip planes */
1330 gl_clip_plane _ClipUserPlane
[MAX_CLIP_PLANES
]; /**< derived */
1331 GLbitfield ClipPlanesEnabled
; /**< on/off bitmask */
1332 GLboolean Normalize
; /**< Normalize all normals? */
1333 GLboolean RescaleNormals
; /**< GL_EXT_rescale_normal */
1334 GLboolean RasterPositionUnclipped
; /**< GL_IBM_rasterpos_clip */
1335 GLboolean DepthClamp
; /**< GL_ARB_depth_clamp */
1336 /** GL_ARB_clip_control */
1337 GLenum ClipOrigin
; /**< GL_LOWER_LEFT or GL_UPPER_LEFT */
1338 GLenum ClipDepthMode
; /**< GL_NEGATIVE_ONE_TO_ONE or GL_ZERO_TO_ONE */
1343 * Viewport attribute group (GL_VIEWPORT_BIT).
1345 struct gl_viewport_attrib
1347 GLfloat X
, Y
; /**< position */
1348 GLfloat Width
, Height
; /**< size */
1349 GLdouble Near
, Far
; /**< Depth buffer range */
1358 } gl_map_buffer_index
;
1362 * Fields describing a mapped buffer range.
1364 struct gl_buffer_mapping
{
1365 GLbitfield AccessFlags
; /**< Mask of GL_MAP_x_BIT flags */
1366 GLvoid
*Pointer
; /**< User-space address of mapping */
1367 GLintptr Offset
; /**< Mapped offset */
1368 GLsizeiptr Length
; /**< Mapped length */
1373 * Usages we've seen for a buffer object.
1376 USAGE_UNIFORM_BUFFER
= 0x1,
1377 USAGE_TEXTURE_BUFFER
= 0x2,
1378 USAGE_ATOMIC_COUNTER_BUFFER
= 0x4,
1379 USAGE_SHADER_STORAGE_BUFFER
= 0x8,
1380 USAGE_TRANSFORM_FEEDBACK_BUFFER
= 0x10,
1381 USAGE_PIXEL_PACK_BUFFER
= 0x20,
1382 USAGE_DISABLE_MINMAX_CACHE
= 0x40,
1387 * GL_ARB_vertex/pixel_buffer_object buffer object
1389 struct gl_buffer_object
1394 GLchar
*Label
; /**< GL_KHR_debug */
1395 GLenum Usage
; /**< GL_STREAM_DRAW_ARB, GL_STREAM_READ_ARB, etc. */
1396 GLbitfield StorageFlags
; /**< GL_MAP_PERSISTENT_BIT, etc. */
1397 GLsizeiptrARB Size
; /**< Size of buffer storage in bytes */
1398 GLubyte
*Data
; /**< Location of storage either in RAM or VRAM. */
1399 GLboolean DeletePending
; /**< true if buffer object is removed from the hash */
1400 GLboolean Written
; /**< Ever written to? (for debugging) */
1401 GLboolean Purgeable
; /**< Is the buffer purgeable under memory pressure? */
1402 GLboolean Immutable
; /**< GL_ARB_buffer_storage */
1403 gl_buffer_usage UsageHistory
; /**< How has this buffer been used so far? */
1405 /** Counters used for buffer usage warnings */
1406 GLuint NumSubDataCalls
;
1407 GLuint NumMapBufferWriteCalls
;
1409 struct gl_buffer_mapping Mappings
[MAP_COUNT
];
1411 /** Memoization of min/max index computations for static index buffers */
1412 struct hash_table
*MinMaxCache
;
1413 unsigned MinMaxCacheHitIndices
;
1414 unsigned MinMaxCacheMissIndices
;
1415 bool MinMaxCacheDirty
;
1417 bool HandleAllocated
; /**< GL_ARB_bindless_texture */
1422 * Client pixel packing/unpacking attributes
1424 struct gl_pixelstore_attrib
1432 GLboolean SwapBytes
;
1434 GLboolean Invert
; /**< GL_MESA_pack_invert */
1435 GLint CompressedBlockWidth
; /**< GL_ARB_compressed_texture_pixel_storage */
1436 GLint CompressedBlockHeight
;
1437 GLint CompressedBlockDepth
;
1438 GLint CompressedBlockSize
;
1439 struct gl_buffer_object
*BufferObj
; /**< GL_ARB_pixel_buffer_object */
1444 * Vertex array information which is derived from gl_array_attributes
1445 * and gl_vertex_buffer_binding information. Used by the VBO module and
1448 struct gl_vertex_array
1450 GLint Size
; /**< components per element (1,2,3,4) */
1451 GLenum Type
; /**< datatype: GL_FLOAT, GL_INT, etc */
1452 GLenum Format
; /**< default: GL_RGBA, but may be GL_BGRA */
1453 GLsizei StrideB
; /**< actual stride in bytes */
1454 GLuint _ElementSize
; /**< size of each element in bytes */
1455 const GLubyte
*Ptr
; /**< Points to array data */
1456 GLboolean Normalized
; /**< GL_ARB_vertex_program */
1457 GLboolean Integer
; /**< Integer-valued? */
1458 GLboolean Doubles
; /**< double precision values are not converted to floats */
1459 GLuint InstanceDivisor
; /**< GL_ARB_instanced_arrays */
1461 struct gl_buffer_object
*BufferObj
;/**< GL_ARB_vertex_buffer_object */
1466 * Attributes to describe a vertex array.
1468 * Contains the size, type, format and normalization flag,
1469 * along with the index of a vertex buffer binding point.
1471 * Note that the Stride field corresponds to VERTEX_ATTRIB_ARRAY_STRIDE
1472 * and is only present for backwards compatibility reasons.
1473 * Rendering always uses VERTEX_BINDING_STRIDE.
1474 * The gl*Pointer() functions will set VERTEX_ATTRIB_ARRAY_STRIDE
1475 * and VERTEX_BINDING_STRIDE to the same value, while
1476 * glBindVertexBuffer() will only set VERTEX_BINDING_STRIDE.
1478 struct gl_array_attributes
1480 GLint Size
; /**< Components per element (1,2,3,4) */
1481 GLenum Type
; /**< Datatype: GL_FLOAT, GL_INT, etc */
1482 GLenum Format
; /**< Default: GL_RGBA, but may be GL_BGRA */
1483 GLsizei Stride
; /**< Stride as specified with gl*Pointer() */
1484 const GLubyte
*Ptr
; /**< Points to client array data. Not used when a VBO is bound */
1485 GLintptr RelativeOffset
; /**< Offset of the first element relative to the binding offset */
1486 GLboolean Enabled
; /**< Whether the array is enabled */
1487 GLboolean Normalized
; /**< Fixed-point values are normalized when converted to floats */
1488 GLboolean Integer
; /**< Fixed-point values are not converted to floats */
1489 GLboolean Doubles
; /**< double precision values are not converted to floats */
1490 GLuint _ElementSize
; /**< Size of each element in bytes */
1491 GLuint BufferBindingIndex
; /**< Vertex buffer binding */
1496 * This describes the buffer object used for a vertex array (or
1497 * multiple vertex arrays). If BufferObj points to the default/null
1498 * buffer object, then the vertex array lives in user memory and not a VBO.
1500 struct gl_vertex_buffer_binding
1502 GLintptr Offset
; /**< User-specified offset */
1503 GLsizei Stride
; /**< User-specified stride */
1504 GLuint InstanceDivisor
; /**< GL_ARB_instanced_arrays */
1505 struct gl_buffer_object
*BufferObj
; /**< GL_ARB_vertex_buffer_object */
1506 GLbitfield64 _BoundArrays
; /**< Arrays bound to this binding point */
1511 * A representation of "Vertex Array Objects" (VAOs) from OpenGL 3.1+ /
1512 * the GL_ARB_vertex_array_object extension.
1514 struct gl_vertex_array_object
1516 /** Name of the VAO as received from glGenVertexArray. */
1521 GLchar
*Label
; /**< GL_KHR_debug */
1524 * Has this array object been bound?
1526 GLboolean EverBound
;
1529 * Derived vertex attribute arrays
1531 * This is a legacy data structure created from gl_vertex_attrib_array and
1532 * gl_vertex_buffer_binding, for compatibility with existing driver code.
1534 struct gl_vertex_array _VertexAttrib
[VERT_ATTRIB_MAX
];
1536 /** Vertex attribute arrays */
1537 struct gl_array_attributes VertexAttrib
[VERT_ATTRIB_MAX
];
1539 /** Vertex buffer bindings */
1540 struct gl_vertex_buffer_binding BufferBinding
[VERT_ATTRIB_MAX
];
1542 /** Mask indicating which vertex arrays have vertex buffer associated. */
1543 GLbitfield64 VertexAttribBufferMask
;
1545 /** Mask of VERT_BIT_* values indicating which arrays are enabled */
1546 GLbitfield64 _Enabled
;
1548 /** Mask of VERT_BIT_* values indicating changed/dirty arrays */
1549 GLbitfield64 NewArrays
;
1551 /** The index buffer (also known as the element array buffer in OpenGL). */
1552 struct gl_buffer_object
*IndexBufferObj
;
1556 /** Used to signal when transitioning from one kind of drawing method
1560 DRAW_NONE
, /**< Initial value only */
1567 * Enum for the OpenGL APIs we know about and may support.
1569 * NOTE: This must match the api_enum table in
1570 * src/mesa/main/get_hash_generator.py
1574 API_OPENGL_COMPAT
, /* legacy / compatibility contexts */
1578 API_OPENGL_LAST
= API_OPENGL_CORE
1582 * Vertex array state
1584 struct gl_array_attrib
1586 /** Currently bound array object. */
1587 struct gl_vertex_array_object
*VAO
;
1589 /** The default vertex array object */
1590 struct gl_vertex_array_object
*DefaultVAO
;
1592 /** The last VAO accessed by a DSA function */
1593 struct gl_vertex_array_object
*LastLookedUpVAO
;
1595 /** Array objects (GL_ARB_vertex_array_object) */
1596 struct _mesa_HashTable
*Objects
;
1598 GLint ActiveTexture
; /**< Client Active Texture */
1599 GLuint LockFirst
; /**< GL_EXT_compiled_vertex_array */
1600 GLuint LockCount
; /**< GL_EXT_compiled_vertex_array */
1603 * \name Primitive restart controls
1605 * Primitive restart is enabled if either \c PrimitiveRestart or
1606 * \c PrimitiveRestartFixedIndex is set.
1609 GLboolean PrimitiveRestart
;
1610 GLboolean PrimitiveRestartFixedIndex
;
1611 GLboolean _PrimitiveRestart
;
1612 GLuint RestartIndex
;
1615 /** One of the DRAW_xxx flags, not consumed by drivers */
1616 gl_draw_method DrawMethod
;
1618 /* GL_ARB_vertex_buffer_object */
1619 struct gl_buffer_object
*ArrayBufferObj
;
1622 * Vertex arrays as consumed by a driver.
1623 * The array pointer is set up only by the VBO module.
1625 const struct gl_vertex_array
**_DrawArrays
; /**< 0..VERT_ATTRIB_MAX-1 */
1627 /** Legal array datatypes and the API for which they have been computed */
1628 GLbitfield LegalTypesMask
;
1629 gl_api LegalTypesMaskAPI
;
1634 * Feedback buffer state
1639 GLbitfield _Mask
; /**< FB_* bits */
1647 * Selection buffer state
1651 GLuint
*Buffer
; /**< selection buffer */
1652 GLuint BufferSize
; /**< size of the selection buffer */
1653 GLuint BufferCount
; /**< number of values in the selection buffer */
1654 GLuint Hits
; /**< number of records in the selection buffer */
1655 GLuint NameStackDepth
; /**< name stack depth */
1656 GLuint NameStack
[MAX_NAME_STACK_DEPTH
]; /**< name stack */
1657 GLboolean HitFlag
; /**< hit flag */
1658 GLfloat HitMinZ
; /**< minimum hit depth */
1659 GLfloat HitMaxZ
; /**< maximum hit depth */
1664 * 1-D Evaluator control points
1668 GLuint Order
; /**< Number of control points */
1669 GLfloat u1
, u2
, du
; /**< u1, u2, 1.0/(u2-u1) */
1670 GLfloat
*Points
; /**< Points to contiguous control points */
1675 * 2-D Evaluator control points
1679 GLuint Uorder
; /**< Number of control points in U dimension */
1680 GLuint Vorder
; /**< Number of control points in V dimension */
1683 GLfloat
*Points
; /**< Points to contiguous control points */
1688 * All evaluator control point state
1690 struct gl_evaluators
1696 struct gl_1d_map Map1Vertex3
;
1697 struct gl_1d_map Map1Vertex4
;
1698 struct gl_1d_map Map1Index
;
1699 struct gl_1d_map Map1Color4
;
1700 struct gl_1d_map Map1Normal
;
1701 struct gl_1d_map Map1Texture1
;
1702 struct gl_1d_map Map1Texture2
;
1703 struct gl_1d_map Map1Texture3
;
1704 struct gl_1d_map Map1Texture4
;
1711 struct gl_2d_map Map2Vertex3
;
1712 struct gl_2d_map Map2Vertex4
;
1713 struct gl_2d_map Map2Index
;
1714 struct gl_2d_map Map2Color4
;
1715 struct gl_2d_map Map2Normal
;
1716 struct gl_2d_map Map2Texture1
;
1717 struct gl_2d_map Map2Texture2
;
1718 struct gl_2d_map Map2Texture3
;
1719 struct gl_2d_map Map2Texture4
;
1724 struct gl_transform_feedback_varying_info
1735 * Per-output info vertex shaders for transform feedback.
1737 struct gl_transform_feedback_output
1739 uint32_t OutputRegister
;
1740 uint32_t OutputBuffer
;
1741 uint32_t NumComponents
;
1744 /** offset (in DWORDs) of this output within the interleaved structure */
1748 * Offset into the output register of the data to output. For example,
1749 * if NumComponents is 2 and ComponentOffset is 1, then the data to
1750 * offset is in the y and z components of the output register.
1752 uint32_t ComponentOffset
;
1756 struct gl_transform_feedback_buffer
1760 uint32_t NumVaryings
;
1763 * Total number of components stored in each buffer. This may be used by
1764 * hardware back-ends to determine the correct stride when interleaving
1765 * multiple transform feedback outputs in the same buffer.
1770 * Which transform feedback stream this buffer binding is associated with.
1776 /** Post-link transform feedback info. */
1777 struct gl_transform_feedback_info
1779 unsigned NumOutputs
;
1781 /* Bitmask of active buffer indices. */
1782 unsigned ActiveBuffers
;
1784 struct gl_transform_feedback_output
*Outputs
;
1786 /** Transform feedback varyings used for the linking of this shader program.
1788 * Use for glGetTransformFeedbackVarying().
1790 struct gl_transform_feedback_varying_info
*Varyings
;
1793 struct gl_transform_feedback_buffer Buffers
[MAX_FEEDBACK_BUFFERS
];
1798 * Transform feedback object state
1800 struct gl_transform_feedback_object
1802 GLuint Name
; /**< AKA the object ID */
1804 GLchar
*Label
; /**< GL_KHR_debug */
1805 GLboolean Active
; /**< Is transform feedback enabled? */
1806 GLboolean Paused
; /**< Is transform feedback paused? */
1807 GLboolean EndedAnytime
; /**< Has EndTransformFeedback been called
1809 GLboolean EverBound
; /**< Has this object been bound? */
1812 * GLES: if Active is true, remaining number of primitives which can be
1813 * rendered without overflow. This is necessary to track because GLES
1814 * requires us to generate INVALID_OPERATION if a call to glDrawArrays or
1815 * glDrawArraysInstanced would overflow transform feedback buffers.
1816 * Undefined if Active is false.
1818 * Not tracked for desktop GL since it's unnecessary.
1820 unsigned GlesRemainingPrims
;
1823 * The program active when BeginTransformFeedback() was called.
1824 * When active and unpaused, this equals ctx->Shader.CurrentProgram[stage],
1825 * where stage is the pipeline stage that is the source of data for
1826 * transform feedback.
1828 struct gl_program
*program
;
1830 /** The feedback buffers */
1831 GLuint BufferNames
[MAX_FEEDBACK_BUFFERS
];
1832 struct gl_buffer_object
*Buffers
[MAX_FEEDBACK_BUFFERS
];
1834 /** Start of feedback data in dest buffer */
1835 GLintptr Offset
[MAX_FEEDBACK_BUFFERS
];
1838 * Max data to put into dest buffer (in bytes). Computed based on
1839 * RequestedSize and the actual size of the buffer.
1841 GLsizeiptr Size
[MAX_FEEDBACK_BUFFERS
];
1844 * Size that was specified when the buffer was bound. If the buffer was
1845 * bound with glBindBufferBase() or glBindBufferOffsetEXT(), this value is
1848 GLsizeiptr RequestedSize
[MAX_FEEDBACK_BUFFERS
];
1853 * Context state for transform feedback.
1855 struct gl_transform_feedback_state
1857 GLenum Mode
; /**< GL_POINTS, GL_LINES or GL_TRIANGLES */
1859 /** The general binding point (GL_TRANSFORM_FEEDBACK_BUFFER) */
1860 struct gl_buffer_object
*CurrentBuffer
;
1862 /** The table of all transform feedback objects */
1863 struct _mesa_HashTable
*Objects
;
1865 /** The current xform-fb object (GL_TRANSFORM_FEEDBACK_BINDING) */
1866 struct gl_transform_feedback_object
*CurrentObject
;
1868 /** The default xform-fb object (Name==0) */
1869 struct gl_transform_feedback_object
*DefaultObject
;
1874 * A "performance monitor" as described in AMD_performance_monitor.
1876 struct gl_perf_monitor_object
1880 /** True if the monitor is currently active (Begin called but not End). */
1884 * True if the monitor has ended.
1886 * This is distinct from !Active because it may never have began.
1891 * A list of groups with currently active counters.
1893 * ActiveGroups[g] == n if there are n counters active from group 'g'.
1895 unsigned *ActiveGroups
;
1898 * An array of bitsets, subscripted by group ID, then indexed by counter ID.
1900 * Checking whether counter 'c' in group 'g' is active can be done via:
1902 * BITSET_TEST(ActiveCounters[g], c)
1904 GLuint
**ActiveCounters
;
1908 union gl_perf_monitor_counter_value
1916 struct gl_perf_monitor_counter
1918 /** Human readable name for the counter. */
1922 * Data type of the counter. Valid values are FLOAT, UNSIGNED_INT,
1923 * UNSIGNED_INT64_AMD, and PERCENTAGE_AMD.
1927 /** Minimum counter value. */
1928 union gl_perf_monitor_counter_value Minimum
;
1930 /** Maximum counter value. */
1931 union gl_perf_monitor_counter_value Maximum
;
1935 struct gl_perf_monitor_group
1937 /** Human readable name for the group. */
1941 * Maximum number of counters in this group which can be active at the
1944 GLuint MaxActiveCounters
;
1946 /** Array of counters within this group. */
1947 const struct gl_perf_monitor_counter
*Counters
;
1953 * A query object instance as described in INTEL_performance_query.
1955 * NB: We want to keep this and the corresponding backend structure
1956 * relatively lean considering that applications may expect to
1957 * allocate enough objects to be able to query around all draw calls
1960 struct gl_perf_query_object
1962 GLuint Id
; /**< hash table ID/name */
1963 unsigned Used
:1; /**< has been used for 1 or more queries */
1964 unsigned Active
:1; /**< inside Begin/EndPerfQuery */
1965 unsigned Ready
:1; /**< result is ready? */
1970 * Context state for AMD_performance_monitor.
1972 struct gl_perf_monitor_state
1974 /** Array of performance monitor groups (indexed by group ID) */
1975 const struct gl_perf_monitor_group
*Groups
;
1978 /** The table of all performance monitors. */
1979 struct _mesa_HashTable
*Monitors
;
1984 * Context state for INTEL_performance_query.
1986 struct gl_perf_query_state
1988 struct _mesa_HashTable
*Objects
; /**< The table of all performance query objects */
1993 * A bindless sampler object.
1995 struct gl_bindless_sampler
1997 /** Texture unit (set by glUniform1()). */
2000 /** Texture Target (TEXTURE_1D/2D/3D/etc_INDEX). */
2001 gl_texture_index target
;
2003 /** Whether this bindless sampler is bound to a unit. */
2006 /** Pointer to the base of the data. */
2011 * A bindless image object.
2013 struct gl_bindless_image
2015 /** Image unit (set by glUniform1()). */
2018 /** Access qualifier (GL_READ_WRITE, GL_READ_ONLY, GL_WRITE_ONLY) */
2021 /** Whether this bindless image is bound to a unit. */
2024 /** Pointer to the base of the data. */
2029 * Names of the various vertex/fragment program register files, etc.
2031 * NOTE: first four tokens must fit into 2 bits (see t_vb_arbprogram.c)
2032 * All values should fit in a 4-bit field.
2034 * NOTE: PROGRAM_STATE_VAR, PROGRAM_CONSTANT, and PROGRAM_UNIFORM can all be
2035 * considered to be "uniform" variables since they can only be set outside
2036 * glBegin/End. They're also all stored in the same Parameters array.
2040 PROGRAM_TEMPORARY
, /**< machine->Temporary[] */
2041 PROGRAM_ARRAY
, /**< Arrays & Matrixes */
2042 PROGRAM_INPUT
, /**< machine->Inputs[] */
2043 PROGRAM_OUTPUT
, /**< machine->Outputs[] */
2044 PROGRAM_STATE_VAR
, /**< gl_program->Parameters[] */
2045 PROGRAM_CONSTANT
, /**< gl_program->Parameters[] */
2046 PROGRAM_UNIFORM
, /**< gl_program->Parameters[] */
2047 PROGRAM_WRITE_ONLY
, /**< A dummy, write-only register */
2048 PROGRAM_ADDRESS
, /**< machine->AddressReg */
2049 PROGRAM_SAMPLER
, /**< for shader samplers, compile-time only */
2050 PROGRAM_SYSTEM_VALUE
,/**< InstanceId, PrimitiveID, etc. */
2051 PROGRAM_UNDEFINED
, /**< Invalid/TBD value */
2052 PROGRAM_IMMEDIATE
, /**< Immediate value, used by TGSI */
2053 PROGRAM_BUFFER
, /**< for shader buffers, compile-time only */
2054 PROGRAM_MEMORY
, /**< for shared, global and local memory */
2055 PROGRAM_IMAGE
, /**< for shader images, compile-time only */
2061 * Base class for any kind of program object
2065 /** FIXME: This must be first until we split shader_info from nir_shader */
2066 struct shader_info info
;
2070 GLubyte
*String
; /**< Null-terminated program text */
2072 GLenum Target
; /**< GL_VERTEX/FRAGMENT_PROGRAM_ARB, GL_GEOMETRY_PROGRAM_NV */
2073 GLenum Format
; /**< String encoding format */
2075 GLboolean _Used
; /**< Ever used for drawing? Used for debugging */
2077 struct nir_shader
*nir
;
2079 bool is_arb_asm
; /** Is this an ARB assembly-style program */
2081 /** Is this program written to on disk shader cache */
2082 bool program_written_to_cache
;
2084 GLbitfield64 SecondaryOutputsWritten
; /**< Subset of OutputsWritten outputs written with non-zero index. */
2085 GLbitfield TexturesUsed
[MAX_COMBINED_TEXTURE_IMAGE_UNITS
]; /**< TEXTURE_x_BIT bitmask */
2086 GLbitfield SamplersUsed
; /**< Bitfield of which samplers are used */
2087 GLbitfield ShadowSamplers
; /**< Texture units used for shadow sampling. */
2088 GLbitfield ExternalSamplersUsed
; /**< Texture units used for samplerExternalOES */
2090 /* Fragement shader only fields */
2091 GLboolean OriginUpperLeft
;
2092 GLboolean PixelCenterInteger
;
2094 /** Named parameters, constants, etc. from program text */
2095 struct gl_program_parameter_list
*Parameters
;
2097 /** Map from sampler unit to texture unit (set by glUniform1i()) */
2098 GLubyte SamplerUnits
[MAX_SAMPLERS
];
2100 /* FIXME: We should be able to make this struct a union. However some
2101 * drivers (i915/fragment_programs, swrast/prog_execute) mix the use of
2102 * these fields, we should fix this.
2105 /** Fields used by GLSL programs */
2107 /** Data shared by gl_program and gl_shader_program */
2108 struct gl_shader_program_data
*data
;
2110 struct gl_active_atomic_buffer
**AtomicBuffers
;
2112 /** Post-link transform feedback info. */
2113 struct gl_transform_feedback_info
*LinkedTransformFeedback
;
2116 * Number of types for subroutine uniforms.
2118 GLuint NumSubroutineUniformTypes
;
2121 * Subroutine uniform remap table
2122 * based on the program level uniform remap table.
2124 GLuint NumSubroutineUniforms
; /* non-sparse total */
2125 GLuint NumSubroutineUniformRemapTable
;
2126 struct gl_uniform_storage
**SubroutineUniformRemapTable
;
2129 * Num of subroutine functions for this stage and storage for them.
2131 GLuint NumSubroutineFunctions
;
2132 GLuint MaxSubroutineFunctionIndex
;
2133 struct gl_subroutine_function
*SubroutineFunctions
;
2136 * Map from image uniform index to image unit (set by glUniform1i())
2138 * An image uniform index is associated with each image uniform by
2139 * the linker. The image index associated with each uniform is
2140 * stored in the \c gl_uniform_storage::image field.
2142 GLubyte ImageUnits
[MAX_IMAGE_UNIFORMS
];
2145 * Access qualifier specified in the shader for each image uniform
2146 * index. Either \c GL_READ_ONLY, \c GL_WRITE_ONLY or \c
2149 * It may be different, though only more strict than the value of
2150 * \c gl_image_unit::Access for the corresponding image unit.
2152 GLenum ImageAccess
[MAX_IMAGE_UNIFORMS
];
2154 struct gl_uniform_block
**UniformBlocks
;
2155 struct gl_uniform_block
**ShaderStorageBlocks
;
2157 /** Which texture target is being sampled
2158 * (TEXTURE_1D/2D/3D/etc_INDEX)
2160 gl_texture_index SamplerTargets
[MAX_SAMPLERS
];
2163 * Number of samplers declared with the bindless_sampler layout
2164 * qualifier as specified by ARB_bindless_texture.
2166 GLuint NumBindlessSamplers
;
2167 GLboolean HasBoundBindlessSampler
;
2168 struct gl_bindless_sampler
*BindlessSamplers
;
2171 * Number of images declared with the bindless_image layout qualifier
2172 * as specified by ARB_bindless_texture.
2174 GLuint NumBindlessImages
;
2175 GLboolean HasBoundBindlessImage
;
2176 struct gl_bindless_image
*BindlessImages
;
2181 * A bitmask of gl_advanced_blend_mode values
2183 GLbitfield BlendSupport
;
2188 /** ARB assembly-style program fields */
2190 struct prog_instruction
*Instructions
;
2193 * Local parameters used by the program.
2195 * It's dynamically allocated because it is rarely used (just
2196 * assembly-style programs), and MAX_PROGRAM_LOCAL_PARAMS entries
2197 * once it's allocated.
2199 GLfloat (*LocalParams
)[4];
2201 /** Bitmask of which register files are read/written with indirect
2202 * addressing. Mask of (1 << PROGRAM_x) bits.
2204 GLbitfield IndirectRegisterFiles
;
2206 /** Logical counts */
2208 GLuint NumInstructions
;
2209 GLuint NumTemporaries
;
2210 GLuint NumParameters
;
2211 GLuint NumAttributes
;
2212 GLuint NumAddressRegs
;
2213 GLuint NumAluInstructions
;
2214 GLuint NumTexInstructions
;
2215 GLuint NumTexIndirections
;
2217 /** Native, actual h/w counts */
2219 GLuint NumNativeInstructions
;
2220 GLuint NumNativeTemporaries
;
2221 GLuint NumNativeParameters
;
2222 GLuint NumNativeAttributes
;
2223 GLuint NumNativeAddressRegs
;
2224 GLuint NumNativeAluInstructions
;
2225 GLuint NumNativeTexInstructions
;
2226 GLuint NumNativeTexIndirections
;
2229 /** Used by ARB assembly-style programs. Can only be true for vertex
2232 GLboolean IsPositionInvariant
;
2239 * State common to vertex and fragment programs.
2241 struct gl_program_state
2243 GLint ErrorPos
; /* GL_PROGRAM_ERROR_POSITION_ARB/NV */
2244 const char *ErrorString
; /* GL_PROGRAM_ERROR_STRING_ARB/NV */
2249 * Context state for vertex programs.
2251 struct gl_vertex_program_state
2253 GLboolean Enabled
; /**< User-set GL_VERTEX_PROGRAM_ARB/NV flag */
2254 GLboolean PointSizeEnabled
; /**< GL_VERTEX_PROGRAM_POINT_SIZE_ARB/NV */
2255 GLboolean TwoSideEnabled
; /**< GL_VERTEX_PROGRAM_TWO_SIDE_ARB/NV */
2256 struct gl_program
*Current
; /**< User-bound vertex program */
2258 /** Currently enabled and valid vertex program (including internal
2259 * programs, user-defined vertex programs and GLSL vertex shaders).
2260 * This is the program we must use when rendering.
2262 struct gl_program
*_Current
;
2264 GLfloat Parameters
[MAX_PROGRAM_ENV_PARAMS
][4]; /**< Env params */
2266 /** Should fixed-function T&L be implemented with a vertex prog? */
2267 GLboolean _MaintainTnlProgram
;
2269 /** Program to emulate fixed-function T&L (see above) */
2270 struct gl_program
*_TnlProgram
;
2272 /** Cache of fixed-function programs */
2273 struct gl_program_cache
*Cache
;
2275 GLboolean _Overriden
;
2279 * Context state for tessellation control programs.
2281 struct gl_tess_ctrl_program_state
2283 /** Currently bound and valid shader. */
2284 struct gl_program
*_Current
;
2286 GLint patch_vertices
;
2287 GLfloat patch_default_outer_level
[4];
2288 GLfloat patch_default_inner_level
[2];
2292 * Context state for tessellation evaluation programs.
2294 struct gl_tess_eval_program_state
2296 /** Currently bound and valid shader. */
2297 struct gl_program
*_Current
;
2301 * Context state for geometry programs.
2303 struct gl_geometry_program_state
2305 /** Currently enabled and valid program (including internal programs
2306 * and compiled shader programs).
2308 struct gl_program
*_Current
;
2312 * Context state for fragment programs.
2314 struct gl_fragment_program_state
2316 GLboolean Enabled
; /**< User-set fragment program enable flag */
2317 struct gl_program
*Current
; /**< User-bound fragment program */
2319 /** Currently enabled and valid fragment program (including internal
2320 * programs, user-defined fragment programs and GLSL fragment shaders).
2321 * This is the program we must use when rendering.
2323 struct gl_program
*_Current
;
2325 GLfloat Parameters
[MAX_PROGRAM_ENV_PARAMS
][4]; /**< Env params */
2327 /** Should fixed-function texturing be implemented with a fragment prog? */
2328 GLboolean _MaintainTexEnvProgram
;
2330 /** Program to emulate fixed-function texture env/combine (see above) */
2331 struct gl_program
*_TexEnvProgram
;
2333 /** Cache of fixed-function programs */
2334 struct gl_program_cache
*Cache
;
2339 * Context state for compute programs.
2341 struct gl_compute_program_state
2343 /** Currently enabled and valid program (including internal programs
2344 * and compiled shader programs).
2346 struct gl_program
*_Current
;
2351 * ATI_fragment_shader runtime state
2354 struct atifs_instruction
;
2355 struct atifs_setupinst
;
2358 * ATI fragment shader
2360 struct ati_fragment_shader
2364 struct atifs_instruction
*Instructions
[2];
2365 struct atifs_setupinst
*SetupInst
[2];
2366 GLfloat Constants
[8][4];
2367 GLbitfield LocalConstDef
; /**< Indicates which constants have been set */
2368 GLubyte numArithInstr
[2];
2369 GLubyte regsAssigned
[2];
2370 GLubyte NumPasses
; /**< 1 or 2 */
2372 GLubyte last_optype
;
2373 GLboolean interpinp1
;
2376 struct gl_program
*Program
;
2380 * Context state for GL_ATI_fragment_shader
2382 struct gl_ati_fragment_shader_state
2385 GLboolean Compiling
;
2386 GLfloat GlobalConstants
[8][4];
2387 struct ati_fragment_shader
*Current
;
2391 * Shader subroutine function definition
2393 struct gl_subroutine_function
2397 int num_compat_types
;
2398 const struct glsl_type
**types
;
2402 * Shader information needed by both gl_shader and gl_linked shader.
2404 struct gl_shader_info
2407 * Tessellation Control shader state from layout qualifiers.
2411 * 0 - vertices not declared in shader, or
2412 * 1 .. GL_MAX_PATCH_VERTICES
2418 * Tessellation Evaluation shader state from layout qualifiers.
2422 * GL_TRIANGLES, GL_QUADS, GL_ISOLINES or PRIM_UNKNOWN if it's not set
2425 GLenum PrimitiveMode
;
2427 enum gl_tess_spacing Spacing
;
2430 * GL_CW, GL_CCW, or 0 if it's not set in this shader.
2434 * 1, 0, or -1 if it's not set in this shader.
2440 * Geometry shader state from GLSL 1.50 layout qualifiers.
2445 * 0 - Invocations count not declared in shader, or
2446 * 1 .. MAX_GEOMETRY_SHADER_INVOCATIONS
2450 * GL_POINTS, GL_LINES, GL_LINES_ADJACENCY, GL_TRIANGLES, or
2451 * GL_TRIANGLES_ADJACENCY, or PRIM_UNKNOWN if it's not set in this
2456 * GL_POINTS, GL_LINE_STRIP or GL_TRIANGLE_STRIP, or PRIM_UNKNOWN if
2457 * it's not set in this shader.
2463 * Compute shader state from ARB_compute_shader and
2464 * ARB_compute_variable_group_size layout qualifiers.
2468 * Size specified using local_size_{x,y,z}, or all 0's to indicate that
2469 * it's not set in this shader.
2471 unsigned LocalSize
[3];
2474 * Whether a variable work group size has been specified as defined by
2475 * ARB_compute_variable_group_size.
2477 bool LocalSizeVariable
;
2482 * A linked GLSL shader object.
2484 struct gl_linked_shader
2486 gl_shader_stage Stage
;
2489 unsigned SourceChecksum
;
2492 struct gl_program
*Program
; /**< Post-compile assembly code */
2495 * \name Sampler tracking
2497 * \note Each of these fields is only set post-linking.
2500 GLbitfield shadow_samplers
; /**< Samplers used for shadow sampling. */
2504 * Number of default uniform block components used by this shader.
2506 * This field is only set post-linking.
2508 unsigned num_uniform_components
;
2511 * Number of combined uniform components used by this shader.
2513 * This field is only set post-linking. It is the sum of the uniform block
2514 * sizes divided by sizeof(float), and num_uniform_compoennts.
2516 unsigned num_combined_uniform_components
;
2518 struct exec_list
*ir
;
2519 struct exec_list
*packed_varyings
;
2520 struct exec_list
*fragdata_arrays
;
2521 struct glsl_symbol_table
*symbols
;
2524 static inline GLbitfield
gl_external_samplers(struct gl_program
*prog
)
2526 GLbitfield external_samplers
= 0;
2527 GLbitfield mask
= prog
->SamplersUsed
;
2530 int idx
= u_bit_scan(&mask
);
2531 if (prog
->sh
.SamplerTargets
[idx
] == TEXTURE_EXTERNAL_INDEX
)
2532 external_samplers
|= (1 << idx
);
2535 return external_samplers
;
2539 * Compile status enum. compile_skipped is used to indicate the compile
2540 * was skipped due to the shader matching one that's been seen before by
2541 * the on-disk cache.
2543 enum gl_compile_status
2545 compile_failure
= 0,
2552 * A GLSL shader object.
2556 /** GL_FRAGMENT_SHADER || GL_VERTEX_SHADER || GL_GEOMETRY_SHADER_ARB ||
2557 * GL_TESS_CONTROL_SHADER || GL_TESS_EVALUATION_SHADER.
2558 * Must be the first field.
2561 gl_shader_stage Stage
;
2562 GLuint Name
; /**< AKA the handle */
2563 GLint RefCount
; /**< Reference count */
2564 GLchar
*Label
; /**< GL_KHR_debug */
2565 unsigned char sha1
[20]; /**< SHA1 hash of pre-processed source */
2566 GLboolean DeletePending
;
2567 enum gl_compile_status CompileStatus
;
2568 bool IsES
; /**< True if this shader uses GLSL ES */
2571 unsigned SourceChecksum
; /**< for debug/logging purposes */
2573 const GLchar
*Source
; /**< Source code string */
2575 const GLchar
*FallbackSource
; /**< Fallback string used by on-disk cache*/
2579 unsigned Version
; /**< GLSL version used for linking */
2581 struct exec_list
*ir
;
2582 struct glsl_symbol_table
*symbols
;
2585 * A bitmask of gl_advanced_blend_mode values
2587 GLbitfield BlendSupport
;
2590 * Whether early fragment tests are enabled as defined by
2591 * ARB_shader_image_load_store.
2593 bool EarlyFragmentTests
;
2595 bool ARB_fragment_coord_conventions_enable
;
2597 bool redeclares_gl_fragcoord
;
2598 bool uses_gl_fragcoord
;
2600 bool PostDepthCoverage
;
2604 * Fragment shader state from GLSL 1.50 layout qualifiers.
2606 bool origin_upper_left
;
2607 bool pixel_center_integer
;
2610 * Whether bindless_sampler/bindless_image, and respectively
2611 * bound_sampler/bound_image are declared at global scope as defined by
2612 * ARB_bindless_texture.
2614 bool bindless_sampler
;
2615 bool bindless_image
;
2619 /** Global xfb_stride out qualifier if any */
2620 GLuint TransformFeedbackBufferStride
[MAX_FEEDBACK_BUFFERS
];
2622 struct gl_shader_info info
;
2626 struct gl_uniform_buffer_variable
2631 * Name of the uniform as seen by glGetUniformIndices.
2633 * glGetUniformIndices requires that the block instance index \b not be
2634 * present in the name of queried uniforms.
2637 * \c gl_uniform_buffer_variable::IndexName and
2638 * \c gl_uniform_buffer_variable::Name may point to identical storage.
2642 const struct glsl_type
*Type
;
2643 unsigned int Offset
;
2648 struct gl_uniform_block
2650 /** Declared name of the uniform block */
2653 /** Array of supplemental information about UBO ir_variables. */
2654 struct gl_uniform_buffer_variable
*Uniforms
;
2658 * Index (GL_UNIFORM_BLOCK_BINDING) into ctx->UniformBufferBindings[] to use
2659 * with glBindBufferBase to bind a buffer object to this uniform block.
2664 * Minimum size (in bytes) of a buffer object to back this uniform buffer
2665 * (GL_UNIFORM_BLOCK_DATA_SIZE).
2667 GLuint UniformBufferSize
;
2669 /** Stages that reference this block */
2673 * Linearized array index for uniform block instance arrays
2675 * Given a uniform block instance array declared with size
2676 * blk[s_0][s_1]..[s_m], the block referenced by blk[i_0][i_1]..[i_m] will
2677 * have the linearized array index
2680 * i_m + ∑ i_j * ∏ s_k
2683 * For a uniform block instance that is not an array, this is always 0.
2685 uint8_t linearized_array_index
;
2688 * Layout specified in the shader
2690 * This isn't accessible through the API, but it is used while
2691 * cross-validating uniform blocks.
2693 enum glsl_interface_packing _Packing
;
2694 GLboolean _RowMajor
;
2698 * Structure that represents a reference to an atomic buffer from some
2701 struct gl_active_atomic_buffer
2703 /** Uniform indices of the atomic counters declared within it. */
2707 /** Binding point index associated with it. */
2710 /** Minimum reasonable size it is expected to have. */
2713 /** Shader stages making use of it. */
2714 GLboolean StageReferences
[MESA_SHADER_STAGES
];
2718 * Data container for shader queries. This holds only the minimal
2719 * amount of required information for resource queries to work.
2721 struct gl_shader_variable
2724 * Declared type of the variable
2726 const struct glsl_type
*type
;
2729 * If the variable is in an interface block, this is the type of the block.
2731 const struct glsl_type
*interface_type
;
2734 * For variables inside structs (possibly recursively), this is the
2735 * outermost struct type.
2737 const struct glsl_type
*outermost_struct_type
;
2740 * Declared name of the variable
2745 * Storage location of the base of this variable
2747 * The precise meaning of this field depends on the nature of the variable.
2749 * - Vertex shader input: one of the values from \c gl_vert_attrib.
2750 * - Vertex shader output: one of the values from \c gl_varying_slot.
2751 * - Geometry shader input: one of the values from \c gl_varying_slot.
2752 * - Geometry shader output: one of the values from \c gl_varying_slot.
2753 * - Fragment shader input: one of the values from \c gl_varying_slot.
2754 * - Fragment shader output: one of the values from \c gl_frag_result.
2755 * - Uniforms: Per-stage uniform slot number for default uniform block.
2756 * - Uniforms: Index within the uniform block definition for UBO members.
2757 * - Non-UBO Uniforms: explicit location until linking then reused to
2758 * store uniform slot number.
2759 * - Other: This field is not currently used.
2761 * If the variable is a uniform, shader input, or shader output, and the
2762 * slot has not been assigned, the value will be -1.
2767 * Specifies the first component the variable is stored in as per
2768 * ARB_enhanced_layouts.
2770 unsigned component
:2;
2773 * Output index for dual source blending.
2776 * The GLSL spec only allows the values 0 or 1 for the index in \b dual
2782 * Specifies whether a shader input/output is per-patch in tessellation
2788 * Storage class of the variable.
2790 * \sa (n)ir_variable_mode
2795 * Interpolation mode for shader inputs / outputs
2797 * \sa glsl_interp_mode
2799 unsigned interpolation
:2;
2802 * Was the location explicitly set in the shader?
2804 * If the location is explicitly set in the shader, it \b cannot be changed
2805 * by the linker or by the API (e.g., calls to \c glBindAttribLocation have
2808 unsigned explicit_location
:1;
2811 * Precision qualifier.
2813 unsigned precision
:2;
2817 * Active resource in a gl_shader_program
2819 struct gl_program_resource
2821 GLenum Type
; /** Program interface type. */
2822 const void *Data
; /** Pointer to resource associated data structure. */
2823 uint8_t StageReferences
; /** Bitmask of shader stage references. */
2827 * Link status enum. linking_skipped is used to indicate linking
2828 * was skipped due to the shader being loaded from the on-disk cache.
2832 linking_failure
= 0,
2838 * A data structure to be shared by gl_shader_program and gl_program.
2840 struct gl_shader_program_data
2842 GLint RefCount
; /**< Reference count */
2844 /** SHA1 hash of linked shader program */
2845 unsigned char sha1
[20];
2847 unsigned NumUniformStorage
;
2848 unsigned NumHiddenUniforms
;
2849 struct gl_uniform_storage
*UniformStorage
;
2851 unsigned NumUniformBlocks
;
2852 struct gl_uniform_block
*UniformBlocks
;
2854 unsigned NumShaderStorageBlocks
;
2855 struct gl_uniform_block
*ShaderStorageBlocks
;
2857 struct gl_active_atomic_buffer
*AtomicBuffers
;
2858 unsigned NumAtomicBuffers
;
2860 /* Shader cache variables used during restore */
2861 unsigned NumUniformDataSlots
;
2862 union gl_constant_value
*UniformDataSlots
;
2864 bool cache_fallback
;
2866 /* TODO: This used by Gallium drivers to skip the cache on tgsi fallback.
2867 * All structures (gl_program, uniform storage, etc) will get recreated
2868 * even though we have already loaded them from cache. Once the i965 cache
2869 * lands we should switch to using the cache_fallback support.
2873 /** List of all active resources after linking. */
2874 struct gl_program_resource
*ProgramResourceList
;
2875 unsigned NumProgramResourceList
;
2877 enum gl_link_status LinkStatus
; /**< GL_LINK_STATUS */
2878 GLboolean Validated
;
2881 unsigned Version
; /**< GLSL version used for linking */
2883 /* Mask of stages this program was linked against */
2884 unsigned linked_stages
;
2888 * A GLSL program object.
2889 * Basically a linked collection of vertex and fragment shaders.
2891 struct gl_shader_program
2893 GLenum Type
; /**< Always GL_SHADER_PROGRAM (internal token) */
2894 GLuint Name
; /**< aka handle or ID */
2895 GLchar
*Label
; /**< GL_KHR_debug */
2896 GLint RefCount
; /**< Reference count */
2897 GLboolean DeletePending
;
2900 * Is the application intending to glGetProgramBinary this program?
2902 GLboolean BinaryRetreivableHint
;
2905 * Indicates whether program can be bound for individual pipeline stages
2906 * using UseProgramStages after it is next linked.
2908 GLboolean SeparateShader
;
2910 GLuint NumShaders
; /**< number of attached shaders */
2911 struct gl_shader
**Shaders
; /**< List of attached the shaders */
2914 * User-defined attribute bindings
2916 * These are set via \c glBindAttribLocation and are used to direct the
2917 * GLSL linker. These are \b not the values used in the compiled shader,
2918 * and they are \b not the values returned by \c glGetAttribLocation.
2920 struct string_to_uint_map
*AttributeBindings
;
2923 * User-defined fragment data bindings
2925 * These are set via \c glBindFragDataLocation and are used to direct the
2926 * GLSL linker. These are \b not the values used in the compiled shader,
2927 * and they are \b not the values returned by \c glGetFragDataLocation.
2929 struct string_to_uint_map
*FragDataBindings
;
2930 struct string_to_uint_map
*FragDataIndexBindings
;
2933 * Transform feedback varyings last specified by
2934 * glTransformFeedbackVaryings().
2936 * For the current set of transform feedback varyings used for transform
2937 * feedback output, see LinkedTransformFeedback.
2941 /** Global xfb_stride out qualifier if any */
2942 GLuint BufferStride
[MAX_FEEDBACK_BUFFERS
];
2944 GLchar
**VaryingNames
; /**< Array [NumVarying] of char * */
2945 } TransformFeedback
;
2947 struct gl_program
*last_vert_prog
;
2949 /** Post-link gl_FragDepth layout for ARB_conservative_depth. */
2950 enum gl_frag_depth_layout FragDepthLayout
;
2953 * Geometry shader state - copied into gl_program by
2954 * _mesa_copy_linked_program_data().
2959 bool UsesEndPrimitive
;
2964 * Compute shader state - copied into gl_program by
2965 * _mesa_copy_linked_program_data().
2969 * Size of shared variables accessed by the compute shader.
2971 unsigned SharedSize
;
2974 /** Data shared by gl_program and gl_shader_program */
2975 struct gl_shader_program_data
*data
;
2978 * Mapping from GL uniform locations returned by \c glUniformLocation to
2979 * UniformStorage entries. Arrays will have multiple contiguous slots
2980 * in the UniformRemapTable, all pointing to the same UniformStorage entry.
2982 unsigned NumUniformRemapTable
;
2983 struct gl_uniform_storage
**UniformRemapTable
;
2986 * Sometimes there are empty slots left over in UniformRemapTable after we
2987 * allocate slots to explicit locations. This list stores the blocks of
2988 * continuous empty slots inside UniformRemapTable.
2990 struct exec_list EmptyUniformLocations
;
2993 * Total number of explicit uniform location including inactive uniforms.
2995 unsigned NumExplicitUniformLocations
;
2998 * Map of active uniform names to locations
3000 * Maps any active uniform that is not an array element to a location.
3001 * Each active uniform, including individual structure members will appear
3002 * in this map. This roughly corresponds to the set of names that would be
3003 * enumerated by \c glGetActiveUniform.
3005 struct string_to_uint_map
*UniformHash
;
3007 GLboolean SamplersValidated
; /**< Samplers validated against texture units? */
3009 bool IsES
; /**< True if this program uses GLSL ES */
3012 * Per-stage shaders resulting from the first stage of linking.
3014 * Set of linked shaders for this program. The array is accessed using the
3015 * \c MESA_SHADER_* defines. Entries for non-existent stages will be
3018 struct gl_linked_shader
*_LinkedShaders
[MESA_SHADER_STAGES
];
3020 /* True if any of the fragment shaders attached to this program use:
3021 * #extension ARB_fragment_coord_conventions: enable
3023 GLboolean ARB_fragment_coord_conventions_enable
;
3027 #define GLSL_DUMP 0x1 /**< Dump shaders to stdout */
3028 #define GLSL_LOG 0x2 /**< Write shaders to files */
3029 #define GLSL_UNIFORMS 0x4 /**< Print glUniform calls */
3030 #define GLSL_NOP_VERT 0x8 /**< Force no-op vertex shaders */
3031 #define GLSL_NOP_FRAG 0x10 /**< Force no-op fragment shaders */
3032 #define GLSL_USE_PROG 0x20 /**< Log glUseProgram calls */
3033 #define GLSL_REPORT_ERRORS 0x40 /**< Print compilation errors */
3034 #define GLSL_DUMP_ON_ERROR 0x80 /**< Dump shaders to stderr on compile error */
3035 #define GLSL_CACHE_INFO 0x100 /**< Print debug information about shader cache */
3036 #define GLSL_CACHE_FALLBACK 0x200 /**< Force shader cache fallback paths */
3040 * Context state for GLSL vertex/fragment shaders.
3041 * Extended to support pipeline object
3043 struct gl_pipeline_object
3045 /** Name of the pipeline object as received from glGenProgramPipelines.
3046 * It would be 0 for shaders without separate shader objects.
3052 GLchar
*Label
; /**< GL_KHR_debug */
3055 * Programs used for rendering
3057 * There is a separate program set for each shader stage.
3059 struct gl_program
*CurrentProgram
[MESA_SHADER_STAGES
];
3061 struct gl_shader_program
*ReferencedPrograms
[MESA_SHADER_STAGES
];
3064 * Program used by glUniform calls.
3066 * Explicitly set by \c glUseProgram and \c glActiveProgramEXT.
3068 struct gl_shader_program
*ActiveProgram
;
3070 GLbitfield Flags
; /**< Mask of GLSL_x flags */
3072 GLboolean EverBound
; /**< Has the pipeline object been created */
3074 GLboolean Validated
; /**< Pipeline Validation status */
3080 * Context state for GLSL pipeline shaders.
3082 struct gl_pipeline_shader_state
3084 /** Currently bound pipeline object. See _mesa_BindProgramPipeline() */
3085 struct gl_pipeline_object
*Current
;
3087 /* Default Object to ensure that _Shader is never NULL */
3088 struct gl_pipeline_object
*Default
;
3090 /** Pipeline objects */
3091 struct _mesa_HashTable
*Objects
;
3095 * Compiler options for a single GLSL shaders type
3097 struct gl_shader_compiler_options
3099 /** Driver-selectable options: */
3100 GLboolean EmitNoLoops
;
3101 GLboolean EmitNoCont
; /**< Emit CONT opcode? */
3102 GLboolean EmitNoMainReturn
; /**< Emit CONT/RET opcodes? */
3103 GLboolean EmitNoPow
; /**< Emit POW opcodes? */
3104 GLboolean EmitNoSat
; /**< Emit SAT opcodes? */
3105 GLboolean LowerCombinedClipCullDistance
; /** Lower gl_ClipDistance and
3106 * gl_CullDistance together from
3107 * float[8] to vec4[2]
3111 * \name Forms of indirect addressing the driver cannot do.
3114 GLboolean EmitNoIndirectInput
; /**< No indirect addressing of inputs */
3115 GLboolean EmitNoIndirectOutput
; /**< No indirect addressing of outputs */
3116 GLboolean EmitNoIndirectTemp
; /**< No indirect addressing of temps */
3117 GLboolean EmitNoIndirectUniform
; /**< No indirect addressing of constants */
3118 GLboolean EmitNoIndirectSampler
; /**< No indirect addressing of samplers */
3121 GLuint MaxIfDepth
; /**< Maximum nested IF blocks */
3122 GLuint MaxUnrollIterations
;
3125 * Optimize code for array of structures backends.
3127 * This is a proxy for:
3128 * - preferring DP4 instructions (rather than MUL/MAD) for
3129 * matrix * vector operations, such as position transformation.
3131 GLboolean OptimizeForAOS
;
3133 GLboolean LowerBufferInterfaceBlocks
; /**< Lower UBO and SSBO access to intrinsics. */
3135 /** Clamp UBO and SSBO block indices so they don't go out-of-bounds. */
3136 GLboolean ClampBlockIndicesToArrayBounds
;
3138 const struct nir_shader_compiler_options
*NirOptions
;
3143 * Occlusion/timer query object.
3145 struct gl_query_object
3147 GLenum Target
; /**< The query target, when active */
3148 GLuint Id
; /**< hash table ID/name */
3149 GLchar
*Label
; /**< GL_KHR_debug */
3150 GLuint64EXT Result
; /**< the counter */
3151 GLboolean Active
; /**< inside Begin/EndQuery */
3152 GLboolean Ready
; /**< result is ready? */
3153 GLboolean EverBound
;/**< has query object ever been bound */
3154 GLuint Stream
; /**< The stream */
3159 * Context state for query objects.
3161 struct gl_query_state
3163 struct _mesa_HashTable
*QueryObjects
;
3164 struct gl_query_object
*CurrentOcclusionObject
; /* GL_ARB_occlusion_query */
3165 struct gl_query_object
*CurrentTimerObject
; /* GL_EXT_timer_query */
3167 /** GL_NV_conditional_render */
3168 struct gl_query_object
*CondRenderQuery
;
3170 /** GL_EXT_transform_feedback */
3171 struct gl_query_object
*PrimitivesGenerated
[MAX_VERTEX_STREAMS
];
3172 struct gl_query_object
*PrimitivesWritten
[MAX_VERTEX_STREAMS
];
3174 /** GL_ARB_transform_feedback_overflow_query */
3175 struct gl_query_object
*TransformFeedbackOverflow
[MAX_VERTEX_STREAMS
];
3176 struct gl_query_object
*TransformFeedbackOverflowAny
;
3178 /** GL_ARB_timer_query */
3179 struct gl_query_object
*TimeElapsed
;
3181 /** GL_ARB_pipeline_statistics_query */
3182 struct gl_query_object
*pipeline_stats
[MAX_PIPELINE_STATISTICS
];
3184 GLenum CondRenderMode
;
3188 /** Sync object state */
3189 struct gl_sync_object
3191 GLuint Name
; /**< Fence name */
3192 GLchar
*Label
; /**< GL_KHR_debug */
3193 GLint RefCount
; /**< Reference count */
3194 GLboolean DeletePending
; /**< Object was deleted while there were still
3195 * live references (e.g., sync not yet finished)
3197 GLenum SyncCondition
;
3198 GLbitfield Flags
; /**< Flags passed to glFenceSync */
3199 GLuint StatusFlag
:1; /**< Has the sync object been signaled? */
3204 * State which can be shared by multiple contexts:
3206 struct gl_shared_state
3208 mtx_t Mutex
; /**< for thread safety */
3209 GLint RefCount
; /**< Reference count */
3210 struct _mesa_HashTable
*DisplayList
; /**< Display lists hash table */
3211 struct _mesa_HashTable
*BitmapAtlas
; /**< For optimized glBitmap text */
3212 struct _mesa_HashTable
*TexObjects
; /**< Texture objects hash table */
3214 /** Default texture objects (shared by all texture units) */
3215 struct gl_texture_object
*DefaultTex
[NUM_TEXTURE_TARGETS
];
3217 /** Fallback texture used when a bound texture is incomplete */
3218 struct gl_texture_object
*FallbackTex
[NUM_TEXTURE_TARGETS
];
3221 * \name Thread safety and statechange notification for texture
3224 * \todo Improve the granularity of locking.
3227 mtx_t TexMutex
; /**< texobj thread safety */
3228 GLuint TextureStateStamp
; /**< state notification for shared tex */
3231 /** Default buffer object for vertex arrays that aren't in VBOs */
3232 struct gl_buffer_object
*NullBufferObj
;
3235 * \name Vertex/geometry/fragment programs
3238 struct _mesa_HashTable
*Programs
; /**< All vertex/fragment programs */
3239 struct gl_program
*DefaultVertexProgram
;
3240 struct gl_program
*DefaultFragmentProgram
;
3243 /* GL_ATI_fragment_shader */
3244 struct _mesa_HashTable
*ATIShaders
;
3245 struct ati_fragment_shader
*DefaultFragmentShader
;
3247 struct _mesa_HashTable
*BufferObjects
;
3249 /** Table of both gl_shader and gl_shader_program objects */
3250 struct _mesa_HashTable
*ShaderObjects
;
3252 /* GL_EXT_framebuffer_object */
3253 struct _mesa_HashTable
*RenderBuffers
;
3254 struct _mesa_HashTable
*FrameBuffers
;
3257 struct set
*SyncObjects
;
3259 /** GL_ARB_sampler_objects */
3260 struct _mesa_HashTable
*SamplerObjects
;
3262 /* GL_ARB_bindless_texture */
3263 struct hash_table_u64
*TextureHandles
;
3264 struct hash_table_u64
*ImageHandles
;
3265 mtx_t HandlesMutex
; /**< For texture/image handles safety */
3268 * Some context in this share group was affected by a GPU reset
3270 * On the next call to \c glGetGraphicsResetStatus, contexts that have not
3271 * been affected by a GPU reset must also return
3272 * \c GL_INNOCENT_CONTEXT_RESET_ARB.
3274 * Once this field becomes true, it is never reset to false.
3276 bool ShareGroupReset
;
3282 * Renderbuffers represent drawing surfaces such as color, depth and/or
3283 * stencil. A framebuffer object has a set of renderbuffers.
3284 * Drivers will typically derive subclasses of this type.
3286 struct gl_renderbuffer
3288 mtx_t Mutex
; /**< for thread safety */
3289 GLuint ClassID
; /**< Useful for drivers */
3291 GLchar
*Label
; /**< GL_KHR_debug */
3293 GLuint Width
, Height
;
3295 GLboolean Purgeable
; /**< Is the buffer purgeable under memory pressure? */
3296 GLboolean AttachedAnytime
; /**< TRUE if it was attached to a framebuffer */
3298 * True for renderbuffers that wrap textures, giving the driver a chance to
3299 * flush render caches through the FinishRenderTexture hook.
3301 * Drivers may also set this on renderbuffers other than those generated by
3302 * glFramebufferTexture(), though it means FinishRenderTexture() would be
3303 * called without a rb->TexImage.
3305 GLboolean NeedsFinishRenderTexture
;
3307 GLenum InternalFormat
; /**< The user-specified format */
3308 GLenum _BaseFormat
; /**< Either GL_RGB, GL_RGBA, GL_DEPTH_COMPONENT or
3309 GL_STENCIL_INDEX. */
3310 mesa_format Format
; /**< The actual renderbuffer memory format */
3312 * Pointer to the texture image if this renderbuffer wraps a texture,
3315 * Note that the reference on the gl_texture_object containing this
3316 * TexImage is held by the gl_renderbuffer_attachment.
3318 struct gl_texture_image
*TexImage
;
3320 /** Delete this renderbuffer */
3321 void (*Delete
)(struct gl_context
*ctx
, struct gl_renderbuffer
*rb
);
3323 /** Allocate new storage for this renderbuffer */
3324 GLboolean (*AllocStorage
)(struct gl_context
*ctx
,
3325 struct gl_renderbuffer
*rb
,
3326 GLenum internalFormat
,
3327 GLuint width
, GLuint height
);
3332 * A renderbuffer attachment points to either a texture object (and specifies
3333 * a mipmap level, cube face or 3D texture slice) or points to a renderbuffer.
3335 struct gl_renderbuffer_attachment
3337 GLenum Type
; /**< \c GL_NONE or \c GL_TEXTURE or \c GL_RENDERBUFFER_EXT */
3341 * If \c Type is \c GL_RENDERBUFFER_EXT, this stores a pointer to the
3342 * application supplied renderbuffer object.
3344 struct gl_renderbuffer
*Renderbuffer
;
3347 * If \c Type is \c GL_TEXTURE, this stores a pointer to the application
3348 * supplied texture object.
3350 struct gl_texture_object
*Texture
;
3351 GLuint TextureLevel
; /**< Attached mipmap level. */
3352 GLuint CubeMapFace
; /**< 0 .. 5, for cube map textures. */
3353 GLuint Zoffset
; /**< Slice for 3D textures, or layer for both 1D
3354 * and 2D array textures */
3360 * A framebuffer is a collection of renderbuffers (color, depth, stencil, etc).
3361 * In C++ terms, think of this as a base class from which device drivers
3362 * will make derived classes.
3364 struct gl_framebuffer
3366 mtx_t Mutex
; /**< for thread safety */
3368 * If zero, this is a window system framebuffer. If non-zero, this
3369 * is a FBO framebuffer; note that for some devices (i.e. those with
3370 * a natural pixel coordinate system for FBOs that differs from the
3371 * OpenGL/Mesa coordinate system), this means that the viewport,
3372 * polygon face orientation, and polygon stipple will have to be inverted.
3377 GLchar
*Label
; /**< GL_KHR_debug */
3379 GLboolean DeletePending
;
3382 * The framebuffer's visual. Immutable if this is a window system buffer.
3383 * Computed from attachments if user-made FBO.
3385 struct gl_config Visual
;
3388 * Size of frame buffer in pixels. If there are no attachments, then both
3391 GLuint Width
, Height
;
3394 * In the case that the framebuffer has no attachment (i.e.
3395 * GL_ARB_framebuffer_no_attachments) then the geometry of
3396 * the framebuffer is specified by the default values.
3399 GLuint Width
, Height
, Layers
, NumSamples
;
3400 GLboolean FixedSampleLocations
;
3401 /* Derived from NumSamples by the driver so that it can choose a valid
3402 * value for the hardware.
3407 /** \name Drawing bounds (Intersection of buffer size and scissor box)
3408 * The drawing region is given by [_Xmin, _Xmax) x [_Ymin, _Ymax),
3409 * (inclusive for _Xmin and _Ymin while exclusive for _Xmax and _Ymax)
3416 /** \name Derived Z buffer stuff */
3418 GLuint _DepthMax
; /**< Max depth buffer value */
3419 GLfloat _DepthMaxF
; /**< Float max depth buffer value */
3420 GLfloat _MRD
; /**< minimum resolvable difference in Z values */
3423 /** One of the GL_FRAMEBUFFER_(IN)COMPLETE_* tokens */
3426 /** Whether one of Attachment has Type != GL_NONE
3427 * NOTE: the values for Width and Height are set to 0 in case of having
3428 * no attachments, a backend driver supporting the extension
3429 * GL_ARB_framebuffer_no_attachments must check for the flag _HasAttachments
3430 * and if GL_FALSE, must then use the values in DefaultGeometry to initialize
3431 * its viewport, scissor and so on (in particular _Xmin, _Xmax, _Ymin and
3432 * _Ymax do NOT take into account _HasAttachments being false). To get the
3433 * geometry of the framebuffer, the helper functions
3434 * _mesa_geometric_width(),
3435 * _mesa_geometric_height(),
3436 * _mesa_geometric_samples() and
3437 * _mesa_geometric_layers()
3438 * are available that check _HasAttachments.
3440 bool _HasAttachments
;
3442 GLbitfield _IntegerBuffers
; /**< Which color buffers are integer valued */
3444 /* ARB_color_buffer_float */
3445 GLboolean _AllColorBuffersFixedPoint
; /* no integer, no float */
3446 GLboolean _HasSNormOrFloatColorBuffer
;
3449 * The maximum number of layers in the framebuffer, or 0 if the framebuffer
3450 * is not layered. For cube maps and cube map arrays, each cube face
3451 * counts as a layer. As the case for Width, Height a backend driver
3452 * supporting GL_ARB_framebuffer_no_attachments must use DefaultGeometry
3453 * in the case that _HasAttachments is false
3455 GLuint MaxNumLayers
;
3457 /** Array of all renderbuffer attachments, indexed by BUFFER_* tokens. */
3458 struct gl_renderbuffer_attachment Attachment
[BUFFER_COUNT
];
3460 /* In unextended OpenGL these vars are part of the GL_COLOR_BUFFER
3461 * attribute group and GL_PIXEL attribute group, respectively.
3463 GLenum ColorDrawBuffer
[MAX_DRAW_BUFFERS
];
3464 GLenum ColorReadBuffer
;
3466 /** Computed from ColorDraw/ReadBuffer above */
3467 GLuint _NumColorDrawBuffers
;
3468 GLint _ColorDrawBufferIndexes
[MAX_DRAW_BUFFERS
]; /**< BUFFER_x or -1 */
3469 GLint _ColorReadBufferIndex
; /* -1 = None */
3470 struct gl_renderbuffer
*_ColorDrawBuffers
[MAX_DRAW_BUFFERS
];
3471 struct gl_renderbuffer
*_ColorReadBuffer
;
3473 /** Delete this framebuffer */
3474 void (*Delete
)(struct gl_framebuffer
*fb
);
3479 * Precision info for shader datatypes. See glGetShaderPrecisionFormat().
3483 GLushort RangeMin
; /**< min value exponent */
3484 GLushort RangeMax
; /**< max value exponent */
3485 GLushort Precision
; /**< number of mantissa bits */
3490 * Limits for vertex, geometry and fragment programs/shaders.
3492 struct gl_program_constants
3494 /* logical limits */
3495 GLuint MaxInstructions
;
3496 GLuint MaxAluInstructions
;
3497 GLuint MaxTexInstructions
;
3498 GLuint MaxTexIndirections
;
3501 GLuint MaxAddressRegs
;
3502 GLuint MaxAddressOffset
; /**< [-MaxAddressOffset, MaxAddressOffset-1] */
3503 GLuint MaxParameters
;
3504 GLuint MaxLocalParams
;
3505 GLuint MaxEnvParams
;
3506 /* native/hardware limits */
3507 GLuint MaxNativeInstructions
;
3508 GLuint MaxNativeAluInstructions
;
3509 GLuint MaxNativeTexInstructions
;
3510 GLuint MaxNativeTexIndirections
;
3511 GLuint MaxNativeAttribs
;
3512 GLuint MaxNativeTemps
;
3513 GLuint MaxNativeAddressRegs
;
3514 GLuint MaxNativeParameters
;
3516 GLuint MaxUniformComponents
; /**< Usually == MaxParameters * 4 */
3519 * \name Per-stage input / output limits
3521 * Previous to OpenGL 3.2, the intrastage data limits were advertised with
3522 * a single value: GL_MAX_VARYING_COMPONENTS (GL_MAX_VARYING_VECTORS in
3523 * ES). This is stored as \c gl_constants::MaxVarying.
3525 * Starting with OpenGL 3.2, the limits are advertised with per-stage
3526 * variables. Each stage as a certain number of outputs that it can feed
3527 * to the next stage and a certain number inputs that it can consume from
3528 * the previous stage.
3530 * Vertex shader inputs do not participate this in this accounting.
3531 * These are tracked exclusively by \c gl_program_constants::MaxAttribs.
3533 * Fragment shader outputs do not participate this in this accounting.
3534 * These are tracked exclusively by \c gl_constants::MaxDrawBuffers.
3537 GLuint MaxInputComponents
;
3538 GLuint MaxOutputComponents
;
3541 /* ES 2.0 and GL_ARB_ES2_compatibility */
3542 struct gl_precision LowFloat
, MediumFloat
, HighFloat
;
3543 struct gl_precision LowInt
, MediumInt
, HighInt
;
3544 /* GL_ARB_uniform_buffer_object */
3545 GLuint MaxUniformBlocks
;
3546 GLuint MaxCombinedUniformComponents
;
3547 GLuint MaxTextureImageUnits
;
3549 /* GL_ARB_shader_atomic_counters */
3550 GLuint MaxAtomicBuffers
;
3551 GLuint MaxAtomicCounters
;
3553 /* GL_ARB_shader_image_load_store */
3554 GLuint MaxImageUniforms
;
3556 /* GL_ARB_shader_storage_buffer_object */
3557 GLuint MaxShaderStorageBlocks
;
3562 * Constants which may be overridden by device driver during context creation
3563 * but are never changed after that.
3567 GLuint MaxTextureMbytes
; /**< Max memory per image, in MB */
3568 GLuint MaxTextureLevels
; /**< Max mipmap levels. */
3569 GLuint Max3DTextureLevels
; /**< Max mipmap levels for 3D textures */
3570 GLuint MaxCubeTextureLevels
; /**< Max mipmap levels for cube textures */
3571 GLuint MaxArrayTextureLayers
; /**< Max layers in array textures */
3572 GLuint MaxTextureRectSize
; /**< Max rectangle texture size, in pixes */
3573 GLuint MaxTextureCoordUnits
;
3574 GLuint MaxCombinedTextureImageUnits
;
3575 GLuint MaxTextureUnits
; /**< = MIN(CoordUnits, FragmentProgram.ImageUnits) */
3576 GLfloat MaxTextureMaxAnisotropy
; /**< GL_EXT_texture_filter_anisotropic */
3577 GLfloat MaxTextureLodBias
; /**< GL_EXT_texture_lod_bias */
3578 GLuint MaxTextureBufferSize
; /**< GL_ARB_texture_buffer_object */
3580 GLuint TextureBufferOffsetAlignment
; /**< GL_ARB_texture_buffer_range */
3582 GLuint MaxArrayLockSize
;
3586 GLfloat MinPointSize
, MaxPointSize
; /**< aliased */
3587 GLfloat MinPointSizeAA
, MaxPointSizeAA
; /**< antialiased */
3588 GLfloat PointSizeGranularity
;
3589 GLfloat MinLineWidth
, MaxLineWidth
; /**< aliased */
3590 GLfloat MinLineWidthAA
, MaxLineWidthAA
; /**< antialiased */
3591 GLfloat LineWidthGranularity
;
3593 GLuint MaxClipPlanes
;
3595 GLfloat MaxShininess
; /**< GL_NV_light_max_exponent */
3596 GLfloat MaxSpotExponent
; /**< GL_NV_light_max_exponent */
3598 GLuint MaxViewportWidth
, MaxViewportHeight
;
3599 GLuint MaxViewports
; /**< GL_ARB_viewport_array */
3600 GLuint ViewportSubpixelBits
; /**< GL_ARB_viewport_array */
3604 } ViewportBounds
; /**< GL_ARB_viewport_array */
3605 GLuint MaxWindowRectangles
; /**< GL_EXT_window_rectangles */
3607 struct gl_program_constants Program
[MESA_SHADER_STAGES
];
3608 GLuint MaxProgramMatrices
;
3609 GLuint MaxProgramMatrixStackDepth
;
3612 GLuint SamplesPassed
;
3615 GLuint PrimitivesGenerated
;
3616 GLuint PrimitivesWritten
;
3617 GLuint VerticesSubmitted
;
3618 GLuint PrimitivesSubmitted
;
3619 GLuint VsInvocations
;
3621 GLuint TessInvocations
;
3622 GLuint GsInvocations
;
3623 GLuint GsPrimitives
;
3624 GLuint FsInvocations
;
3625 GLuint ComputeInvocations
;
3626 GLuint ClInPrimitives
;
3627 GLuint ClOutPrimitives
;
3630 GLuint MaxDrawBuffers
; /**< GL_ARB_draw_buffers */
3632 GLuint MaxColorAttachments
; /**< GL_EXT_framebuffer_object */
3633 GLuint MaxRenderbufferSize
; /**< GL_EXT_framebuffer_object */
3634 GLuint MaxSamples
; /**< GL_ARB_framebuffer_object */
3637 * GL_ARB_framebuffer_no_attachments
3639 GLuint MaxFramebufferWidth
;
3640 GLuint MaxFramebufferHeight
;
3641 GLuint MaxFramebufferLayers
;
3642 GLuint MaxFramebufferSamples
;
3644 /** Number of varying vectors between any two shader stages. */
3648 * GL_ARB_uniform_buffer_object
3650 GLuint MaxCombinedUniformBlocks
;
3651 GLuint MaxUniformBufferBindings
;
3652 GLuint MaxUniformBlockSize
;
3653 GLuint UniformBufferOffsetAlignment
;
3657 * GL_ARB_shader_storage_buffer_object
3659 GLuint MaxCombinedShaderStorageBlocks
;
3660 GLuint MaxShaderStorageBufferBindings
;
3661 GLuint MaxShaderStorageBlockSize
;
3662 GLuint ShaderStorageBufferOffsetAlignment
;
3666 * GL_ARB_explicit_uniform_location
3668 GLuint MaxUserAssignableUniformLocations
;
3670 /** geometry shader */
3671 GLuint MaxGeometryOutputVertices
;
3672 GLuint MaxGeometryTotalOutputComponents
;
3674 GLuint GLSLVersion
; /**< Desktop GLSL version supported (ex: 120 = 1.20) */
3677 * Changes default GLSL extension behavior from "error" to "warn". It's out
3678 * of spec, but it can make some apps work that otherwise wouldn't.
3680 GLboolean ForceGLSLExtensionsWarn
;
3683 * If non-zero, forces GLSL shaders to behave as if they began
3684 * with "#version ForceGLSLVersion".
3686 GLuint ForceGLSLVersion
;
3689 * Allow GLSL #extension directives in the middle of shaders.
3691 GLboolean AllowGLSLExtensionDirectiveMidShader
;
3694 * Allow GLSL built-in variables to be redeclared verbatim
3696 GLboolean AllowGLSLBuiltinVariableRedeclaration
;
3699 * Allow creating a higher compat profile (version 3.1+) for apps that
3700 * request it. Be careful when adding that driconf option because some
3701 * features are unimplemented and might not work correctly.
3703 GLboolean AllowHigherCompatVersion
;
3706 * Force computing the absolute value for sqrt() and inversesqrt() to follow
3707 * D3D9 when apps rely on this behaviour.
3709 GLboolean ForceGLSLAbsSqrt
;
3712 * Force uninitialized variables to default to zero.
3714 GLboolean GLSLZeroInit
;
3717 * Does the driver support real 32-bit integers? (Otherwise, integers are
3718 * simulated via floats.)
3720 GLboolean NativeIntegers
;
3723 * Does VertexID count from zero or from base vertex?
3726 * If desktop GLSL 1.30 or GLSL ES 3.00 are not supported, this field is
3727 * ignored and need not be set.
3729 bool VertexID_is_zero_based
;
3732 * If the driver supports real 32-bit integers, what integer value should be
3733 * used for boolean true in uniform uploads? (Usually 1 or ~0.)
3735 GLuint UniformBooleanTrue
;
3738 * Maximum amount of time, measured in nanseconds, that the server can wait.
3740 GLuint64 MaxServerWaitTimeout
;
3742 /** GL_EXT_provoking_vertex */
3743 GLboolean QuadsFollowProvokingVertexConvention
;
3745 /** GL_ARB_viewport_array */
3746 GLenum LayerAndVPIndexProvokingVertex
;
3748 /** OpenGL version 3.0 */
3749 GLbitfield ContextFlags
; /**< Ex: GL_CONTEXT_FLAG_FORWARD_COMPATIBLE_BIT */
3751 /** OpenGL version 3.2 */
3752 GLbitfield ProfileMask
; /**< Mask of CONTEXT_x_PROFILE_BIT */
3754 /** OpenGL version 4.4 */
3755 GLuint MaxVertexAttribStride
;
3757 /** GL_EXT_transform_feedback */
3758 GLuint MaxTransformFeedbackBuffers
;
3759 GLuint MaxTransformFeedbackSeparateComponents
;
3760 GLuint MaxTransformFeedbackInterleavedComponents
;
3761 GLuint MaxVertexStreams
;
3763 /** GL_EXT_gpu_shader4 */
3764 GLint MinProgramTexelOffset
, MaxProgramTexelOffset
;
3766 /** GL_ARB_texture_gather */
3767 GLuint MinProgramTextureGatherOffset
;
3768 GLuint MaxProgramTextureGatherOffset
;
3769 GLuint MaxProgramTextureGatherComponents
;
3771 /* GL_ARB_robustness */
3772 GLenum ResetStrategy
;
3774 /* GL_KHR_robustness */
3775 GLboolean RobustAccess
;
3777 /* GL_ARB_blend_func_extended */
3778 GLuint MaxDualSourceDrawBuffers
;
3781 * Whether the implementation strips out and ignores texture borders.
3783 * Many GPU hardware implementations don't support rendering with texture
3784 * borders and mipmapped textures. (Note: not static border color, but the
3785 * old 1-pixel border around each edge). Implementations then have to do
3786 * slow fallbacks to be correct, or just ignore the border and be fast but
3787 * wrong. Setting the flag strips the border off of TexImage calls,
3788 * providing "fast but wrong" at significantly reduced driver complexity.
3790 * Texture borders are deprecated in GL 3.0.
3792 GLboolean StripTextureBorder
;
3795 * For drivers which can do a better job at eliminating unused uniforms
3796 * than the GLSL compiler.
3798 * XXX Remove these as soon as a better solution is available.
3800 GLboolean GLSLSkipStrictMaxUniformLimitCheck
;
3802 /** Whether gl_FragCoord and gl_FrontFacing are system values. */
3803 bool GLSLFragCoordIsSysVal
;
3804 bool GLSLFrontFacingIsSysVal
;
3807 * Run the minimum amount of GLSL optimizations to be able to link
3808 * shaders optimally (eliminate dead varyings and uniforms) and just do
3809 * all the necessary lowering.
3811 bool GLSLOptimizeConservatively
;
3814 * True if gl_TessLevelInner/Outer[] in the TES should be inputs
3815 * (otherwise, they're system values).
3817 bool GLSLTessLevelsAsInputs
;
3820 * Always use the GetTransformFeedbackVertexCount() driver hook, rather
3821 * than passing the transform feedback object to the drawing function.
3823 GLboolean AlwaysUseGetTransformFeedbackVertexCount
;
3825 /** GL_ARB_map_buffer_alignment */
3826 GLuint MinMapBufferAlignment
;
3829 * Disable varying packing. This is out of spec, but potentially useful
3830 * for older platforms that supports a limited number of texture
3831 * indirections--on these platforms, unpacking the varyings in the fragment
3832 * shader increases the number of texture indirections by 1, which might
3833 * make some shaders not executable at all.
3835 * Drivers that support transform feedback must set this value to GL_FALSE.
3837 GLboolean DisableVaryingPacking
;
3840 * Should meaningful names be generated for compiler temporary variables?
3842 * Generally, it is not useful to have the compiler generate "meaningful"
3843 * names for temporary variables that it creates. This can, however, be a
3844 * useful debugging aid. In Mesa debug builds or release builds when
3845 * MESA_GLSL is set at run-time, meaningful names will be generated.
3846 * Drivers can also force names to be generated by setting this field.
3847 * For example, the i965 driver may set it when INTEL_DEBUG=vs (to dump
3848 * vertex shader assembly) is set at run-time.
3850 bool GenerateTemporaryNames
;
3853 * Maximum value supported for an index in DrawElements and friends.
3855 * This must be at least (1ull<<24)-1. The default value is
3858 * \since ES 3.0 or GL_ARB_ES3_compatibility
3859 * \sa _mesa_init_constants
3861 GLuint64 MaxElementIndex
;
3864 * Disable interpretation of line continuations (lines ending with a
3865 * backslash character ('\') in GLSL source.
3867 GLboolean DisableGLSLLineContinuations
;
3869 /** GL_ARB_texture_multisample */
3870 GLint MaxColorTextureSamples
;
3871 GLint MaxDepthTextureSamples
;
3872 GLint MaxIntegerSamples
;
3875 * GL_EXT_texture_multisample_blit_scaled implementation assumes that
3876 * samples are laid out in a rectangular grid roughly corresponding to
3877 * sample locations within a pixel. Below SampleMap{2,4,8}x variables
3878 * are used to map indices of rectangular grid to sample numbers within
3879 * a pixel. This mapping of indices to sample numbers must be initialized
3880 * by the driver for the target hardware. For example, if we have the 8X
3881 * MSAA sample number layout (sample positions) for XYZ hardware:
3883 * sample indices layout sample number layout
3884 * --------- ---------
3885 * | 0 | 1 | | a | b |
3886 * --------- ---------
3887 * | 2 | 3 | | c | d |
3888 * --------- ---------
3889 * | 4 | 5 | | e | f |
3890 * --------- ---------
3891 * | 6 | 7 | | g | h |
3892 * --------- ---------
3894 * Where a,b,c,d,e,f,g,h are integers between [0-7].
3896 * Then, initialize the SampleMap8x variable for XYZ hardware as shown
3898 * SampleMap8x = {a, b, c, d, e, f, g, h};
3900 * Follow the logic for sample counts 2-8.
3902 * For 16x the sample indices layout as a 4x4 grid as follows:
3914 uint8_t SampleMap2x
[2];
3915 uint8_t SampleMap4x
[4];
3916 uint8_t SampleMap8x
[8];
3917 uint8_t SampleMap16x
[16];
3919 /** GL_ARB_shader_atomic_counters */
3920 GLuint MaxAtomicBufferBindings
;
3921 GLuint MaxAtomicBufferSize
;
3922 GLuint MaxCombinedAtomicBuffers
;
3923 GLuint MaxCombinedAtomicCounters
;
3925 /** GL_ARB_vertex_attrib_binding */
3926 GLint MaxVertexAttribRelativeOffset
;
3927 GLint MaxVertexAttribBindings
;
3929 /* GL_ARB_shader_image_load_store */
3930 GLuint MaxImageUnits
;
3931 GLuint MaxCombinedShaderOutputResources
;
3932 GLuint MaxImageSamples
;
3933 GLuint MaxCombinedImageUniforms
;
3935 /** GL_ARB_compute_shader */
3936 GLuint MaxComputeWorkGroupCount
[3]; /* Array of x, y, z dimensions */
3937 GLuint MaxComputeWorkGroupSize
[3]; /* Array of x, y, z dimensions */
3938 GLuint MaxComputeWorkGroupInvocations
;
3939 GLuint MaxComputeSharedMemorySize
;
3941 /** GL_ARB_compute_variable_group_size */
3942 GLuint MaxComputeVariableGroupSize
[3]; /* Array of x, y, z dimensions */
3943 GLuint MaxComputeVariableGroupInvocations
;
3945 /** GL_ARB_gpu_shader5 */
3946 GLfloat MinFragmentInterpolationOffset
;
3947 GLfloat MaxFragmentInterpolationOffset
;
3949 GLboolean FakeSWMSAA
;
3951 /** GL_KHR_context_flush_control */
3952 GLenum ContextReleaseBehavior
;
3954 struct gl_shader_compiler_options ShaderCompilerOptions
[MESA_SHADER_STAGES
];
3956 /** GL_ARB_tessellation_shader */
3957 GLuint MaxPatchVertices
;
3958 GLuint MaxTessGenLevel
;
3959 GLuint MaxTessPatchComponents
;
3960 GLuint MaxTessControlTotalOutputComponents
;
3961 bool LowerTessLevel
; /**< Lower gl_TessLevel* from float[n] to vecn? */
3962 bool LowerTCSPatchVerticesIn
; /**< Lower gl_PatchVerticesIn to a uniform */
3963 bool LowerTESPatchVerticesIn
; /**< Lower gl_PatchVerticesIn to a uniform */
3964 bool PrimitiveRestartForPatches
;
3965 bool LowerCsDerivedVariables
; /**< Lower gl_GlobalInvocationID and
3966 * gl_LocalInvocationIndex based on
3967 * other builtin variables. */
3969 /** GL_OES_primitive_bounding_box */
3970 bool NoPrimitiveBoundingBoxOutput
;
3972 /** GL_ARB_sparse_buffer */
3973 GLuint SparseBufferPageSize
;
3975 /** Used as an input for sha1 generation in the on-disk shader cache */
3976 unsigned char *dri_config_options_sha1
;
3978 /** When drivers are OK with mapped buffers during draw and other calls. */
3979 bool AllowMappedBuffersDuringExecution
;
3984 * Enable flag for each OpenGL extension. Different device drivers will
3985 * enable different extensions at runtime.
3987 struct gl_extensions
3989 GLboolean dummy
; /* don't remove this! */
3990 GLboolean dummy_true
; /* Set true by _mesa_init_extensions(). */
3991 GLboolean dummy_false
; /* Set false by _mesa_init_extensions(). */
3992 GLboolean ANGLE_texture_compression_dxt
;
3993 GLboolean ARB_ES2_compatibility
;
3994 GLboolean ARB_ES3_compatibility
;
3995 GLboolean ARB_ES3_1_compatibility
;
3996 GLboolean ARB_ES3_2_compatibility
;
3997 GLboolean ARB_arrays_of_arrays
;
3998 GLboolean ARB_base_instance
;
3999 GLboolean ARB_bindless_texture
;
4000 GLboolean ARB_blend_func_extended
;
4001 GLboolean ARB_buffer_storage
;
4002 GLboolean ARB_clear_texture
;
4003 GLboolean ARB_clip_control
;
4004 GLboolean ARB_color_buffer_float
;
4005 GLboolean ARB_compute_shader
;
4006 GLboolean ARB_compute_variable_group_size
;
4007 GLboolean ARB_conditional_render_inverted
;
4008 GLboolean ARB_conservative_depth
;
4009 GLboolean ARB_copy_image
;
4010 GLboolean ARB_cull_distance
;
4011 GLboolean ARB_depth_buffer_float
;
4012 GLboolean ARB_depth_clamp
;
4013 GLboolean ARB_depth_texture
;
4014 GLboolean ARB_derivative_control
;
4015 GLboolean ARB_draw_buffers_blend
;
4016 GLboolean ARB_draw_elements_base_vertex
;
4017 GLboolean ARB_draw_indirect
;
4018 GLboolean ARB_draw_instanced
;
4019 GLboolean ARB_fragment_coord_conventions
;
4020 GLboolean ARB_fragment_layer_viewport
;
4021 GLboolean ARB_fragment_program
;
4022 GLboolean ARB_fragment_program_shadow
;
4023 GLboolean ARB_fragment_shader
;
4024 GLboolean ARB_framebuffer_no_attachments
;
4025 GLboolean ARB_framebuffer_object
;
4026 GLboolean ARB_enhanced_layouts
;
4027 GLboolean ARB_explicit_attrib_location
;
4028 GLboolean ARB_explicit_uniform_location
;
4029 GLboolean ARB_gpu_shader5
;
4030 GLboolean ARB_gpu_shader_fp64
;
4031 GLboolean ARB_gpu_shader_int64
;
4032 GLboolean ARB_half_float_vertex
;
4033 GLboolean ARB_indirect_parameters
;
4034 GLboolean ARB_instanced_arrays
;
4035 GLboolean ARB_internalformat_query
;
4036 GLboolean ARB_internalformat_query2
;
4037 GLboolean ARB_map_buffer_range
;
4038 GLboolean ARB_occlusion_query
;
4039 GLboolean ARB_occlusion_query2
;
4040 GLboolean ARB_pipeline_statistics_query
;
4041 GLboolean ARB_point_sprite
;
4042 GLboolean ARB_post_depth_coverage
;
4043 GLboolean ARB_query_buffer_object
;
4044 GLboolean ARB_robust_buffer_access_behavior
;
4045 GLboolean ARB_sample_shading
;
4046 GLboolean ARB_seamless_cube_map
;
4047 GLboolean ARB_shader_atomic_counter_ops
;
4048 GLboolean ARB_shader_atomic_counters
;
4049 GLboolean ARB_shader_ballot
;
4050 GLboolean ARB_shader_bit_encoding
;
4051 GLboolean ARB_shader_clock
;
4052 GLboolean ARB_shader_draw_parameters
;
4053 GLboolean ARB_shader_group_vote
;
4054 GLboolean ARB_shader_image_load_store
;
4055 GLboolean ARB_shader_image_size
;
4056 GLboolean ARB_shader_precision
;
4057 GLboolean ARB_shader_stencil_export
;
4058 GLboolean ARB_shader_storage_buffer_object
;
4059 GLboolean ARB_shader_texture_image_samples
;
4060 GLboolean ARB_shader_texture_lod
;
4061 GLboolean ARB_shader_viewport_layer_array
;
4062 GLboolean ARB_shading_language_packing
;
4063 GLboolean ARB_shading_language_420pack
;
4064 GLboolean ARB_shadow
;
4065 GLboolean ARB_sparse_buffer
;
4066 GLboolean ARB_stencil_texturing
;
4068 GLboolean ARB_tessellation_shader
;
4069 GLboolean ARB_texture_border_clamp
;
4070 GLboolean ARB_texture_buffer_object
;
4071 GLboolean ARB_texture_buffer_object_rgb32
;
4072 GLboolean ARB_texture_buffer_range
;
4073 GLboolean ARB_texture_compression_bptc
;
4074 GLboolean ARB_texture_compression_rgtc
;
4075 GLboolean ARB_texture_cube_map
;
4076 GLboolean ARB_texture_cube_map_array
;
4077 GLboolean ARB_texture_env_combine
;
4078 GLboolean ARB_texture_env_crossbar
;
4079 GLboolean ARB_texture_env_dot3
;
4080 GLboolean ARB_texture_float
;
4081 GLboolean ARB_texture_gather
;
4082 GLboolean ARB_texture_mirror_clamp_to_edge
;
4083 GLboolean ARB_texture_multisample
;
4084 GLboolean ARB_texture_non_power_of_two
;
4085 GLboolean ARB_texture_stencil8
;
4086 GLboolean ARB_texture_query_levels
;
4087 GLboolean ARB_texture_query_lod
;
4088 GLboolean ARB_texture_rg
;
4089 GLboolean ARB_texture_rgb10_a2ui
;
4090 GLboolean ARB_texture_view
;
4091 GLboolean ARB_timer_query
;
4092 GLboolean ARB_transform_feedback2
;
4093 GLboolean ARB_transform_feedback3
;
4094 GLboolean ARB_transform_feedback_instanced
;
4095 GLboolean ARB_transform_feedback_overflow_query
;
4096 GLboolean ARB_uniform_buffer_object
;
4097 GLboolean ARB_vertex_attrib_64bit
;
4098 GLboolean ARB_vertex_program
;
4099 GLboolean ARB_vertex_shader
;
4100 GLboolean ARB_vertex_type_10f_11f_11f_rev
;
4101 GLboolean ARB_vertex_type_2_10_10_10_rev
;
4102 GLboolean ARB_viewport_array
;
4103 GLboolean EXT_blend_color
;
4104 GLboolean EXT_blend_equation_separate
;
4105 GLboolean EXT_blend_func_separate
;
4106 GLboolean EXT_blend_minmax
;
4107 GLboolean EXT_depth_bounds_test
;
4108 GLboolean EXT_draw_buffers2
;
4109 GLboolean EXT_framebuffer_multisample
;
4110 GLboolean EXT_framebuffer_multisample_blit_scaled
;
4111 GLboolean EXT_framebuffer_sRGB
;
4112 GLboolean EXT_gpu_program_parameters
;
4113 GLboolean EXT_gpu_shader4
;
4114 GLboolean EXT_packed_float
;
4115 GLboolean EXT_pixel_buffer_object
;
4116 GLboolean EXT_point_parameters
;
4117 GLboolean EXT_polygon_offset_clamp
;
4118 GLboolean EXT_provoking_vertex
;
4119 GLboolean EXT_shader_integer_mix
;
4120 GLboolean EXT_shader_samples_identical
;
4121 GLboolean EXT_stencil_two_side
;
4122 GLboolean EXT_texture_array
;
4123 GLboolean EXT_texture_compression_latc
;
4124 GLboolean EXT_texture_compression_s3tc
;
4125 GLboolean EXT_texture_env_dot3
;
4126 GLboolean EXT_texture_filter_anisotropic
;
4127 GLboolean EXT_texture_integer
;
4128 GLboolean EXT_texture_mirror_clamp
;
4129 GLboolean EXT_texture_shared_exponent
;
4130 GLboolean EXT_texture_snorm
;
4131 GLboolean EXT_texture_sRGB
;
4132 GLboolean EXT_texture_sRGB_decode
;
4133 GLboolean EXT_texture_swizzle
;
4134 GLboolean EXT_transform_feedback
;
4135 GLboolean EXT_timer_query
;
4136 GLboolean EXT_vertex_array_bgra
;
4137 GLboolean EXT_window_rectangles
;
4138 GLboolean OES_copy_image
;
4139 GLboolean OES_primitive_bounding_box
;
4140 GLboolean OES_sample_variables
;
4141 GLboolean OES_standard_derivatives
;
4142 GLboolean OES_texture_buffer
;
4143 GLboolean OES_texture_cube_map_array
;
4144 GLboolean OES_viewport_array
;
4145 /* vendor extensions */
4146 GLboolean AMD_performance_monitor
;
4147 GLboolean AMD_pinned_memory
;
4148 GLboolean AMD_seamless_cubemap_per_texture
;
4149 GLboolean AMD_vertex_shader_layer
;
4150 GLboolean AMD_vertex_shader_viewport_index
;
4151 GLboolean ANDROID_extension_pack_es31a
;
4152 GLboolean APPLE_object_purgeable
;
4153 GLboolean ATI_meminfo
;
4154 GLboolean ATI_texture_compression_3dc
;
4155 GLboolean ATI_texture_mirror_once
;
4156 GLboolean ATI_texture_env_combine3
;
4157 GLboolean ATI_fragment_shader
;
4158 GLboolean ATI_separate_stencil
;
4159 GLboolean GREMEDY_string_marker
;
4160 GLboolean INTEL_conservative_rasterization
;
4161 GLboolean INTEL_performance_query
;
4162 GLboolean KHR_blend_equation_advanced
;
4163 GLboolean KHR_blend_equation_advanced_coherent
;
4164 GLboolean KHR_robustness
;
4165 GLboolean KHR_texture_compression_astc_hdr
;
4166 GLboolean KHR_texture_compression_astc_ldr
;
4167 GLboolean KHR_texture_compression_astc_sliced_3d
;
4168 GLboolean MESA_pack_invert
;
4169 GLboolean MESA_shader_framebuffer_fetch
;
4170 GLboolean MESA_shader_framebuffer_fetch_non_coherent
;
4171 GLboolean MESA_shader_integer_functions
;
4172 GLboolean MESA_ycbcr_texture
;
4173 GLboolean NV_conditional_render
;
4174 GLboolean NV_fill_rectangle
;
4175 GLboolean NV_fog_distance
;
4176 GLboolean NV_point_sprite
;
4177 GLboolean NV_primitive_restart
;
4178 GLboolean NV_texture_barrier
;
4179 GLboolean NV_texture_env_combine4
;
4180 GLboolean NV_texture_rectangle
;
4181 GLboolean NV_vdpau_interop
;
4182 GLboolean NVX_gpu_memory_info
;
4183 GLboolean TDFX_texture_compression_FXT1
;
4184 GLboolean OES_EGL_image
;
4185 GLboolean OES_draw_texture
;
4186 GLboolean OES_depth_texture_cube_map
;
4187 GLboolean OES_EGL_image_external
;
4188 GLboolean OES_texture_float
;
4189 GLboolean OES_texture_float_linear
;
4190 GLboolean OES_texture_half_float
;
4191 GLboolean OES_texture_half_float_linear
;
4192 GLboolean OES_compressed_ETC1_RGB8_texture
;
4193 GLboolean OES_geometry_shader
;
4194 GLboolean OES_texture_compression_astc
;
4195 GLboolean extension_sentinel
;
4196 /** The extension string */
4197 const GLubyte
*String
;
4198 /** Number of supported extensions */
4201 * The context version which extension helper functions compare against.
4202 * By default, the value is equal to ctx->Version. This changes to ~0
4203 * while meta is in progress.
4210 * A stack of matrices (projection, modelview, color, texture, etc).
4212 struct gl_matrix_stack
4214 GLmatrix
*Top
; /**< points into Stack */
4215 GLmatrix
*Stack
; /**< array [MaxDepth] of GLmatrix */
4216 unsigned StackSize
; /**< Number of elements in Stack */
4217 GLuint Depth
; /**< 0 <= Depth < MaxDepth */
4218 GLuint MaxDepth
; /**< size of Stack[] array */
4219 GLuint DirtyFlag
; /**< _NEW_MODELVIEW or _NEW_PROJECTION, for example */
4224 * \name Bits for image transfer operations
4225 * \sa __struct gl_contextRec::ImageTransferState.
4228 #define IMAGE_SCALE_BIAS_BIT 0x1
4229 #define IMAGE_SHIFT_OFFSET_BIT 0x2
4230 #define IMAGE_MAP_COLOR_BIT 0x4
4231 #define IMAGE_CLAMP_BIT 0x800
4234 /** Pixel Transfer ops */
4235 #define IMAGE_BITS (IMAGE_SCALE_BIAS_BIT | \
4236 IMAGE_SHIFT_OFFSET_BIT | \
4237 IMAGE_MAP_COLOR_BIT)
4240 * \name Bits to indicate what state has changed.
4243 #define _NEW_MODELVIEW (1u << 0) /**< gl_context::ModelView */
4244 #define _NEW_PROJECTION (1u << 1) /**< gl_context::Projection */
4245 #define _NEW_TEXTURE_MATRIX (1u << 2) /**< gl_context::TextureMatrix */
4246 #define _NEW_COLOR (1u << 3) /**< gl_context::Color */
4247 #define _NEW_DEPTH (1u << 4) /**< gl_context::Depth */
4248 #define _NEW_EVAL (1u << 5) /**< gl_context::Eval, EvalMap */
4249 #define _NEW_FOG (1u << 6) /**< gl_context::Fog */
4250 #define _NEW_HINT (1u << 7) /**< gl_context::Hint */
4251 #define _NEW_LIGHT (1u << 8) /**< gl_context::Light */
4252 #define _NEW_LINE (1u << 9) /**< gl_context::Line */
4253 #define _NEW_PIXEL (1u << 10) /**< gl_context::Pixel */
4254 #define _NEW_POINT (1u << 11) /**< gl_context::Point */
4255 #define _NEW_POLYGON (1u << 12) /**< gl_context::Polygon */
4256 #define _NEW_POLYGONSTIPPLE (1u << 13) /**< gl_context::PolygonStipple */
4257 #define _NEW_SCISSOR (1u << 14) /**< gl_context::Scissor */
4258 #define _NEW_STENCIL (1u << 15) /**< gl_context::Stencil */
4259 #define _NEW_TEXTURE_OBJECT (1u << 16) /**< gl_context::Texture (bindings only) */
4260 #define _NEW_TRANSFORM (1u << 17) /**< gl_context::Transform */
4261 #define _NEW_VIEWPORT (1u << 18) /**< gl_context::Viewport */
4262 #define _NEW_TEXTURE_STATE (1u << 19) /**< gl_context::Texture (states only) */
4263 #define _NEW_ARRAY (1u << 20) /**< gl_context::Array */
4264 #define _NEW_RENDERMODE (1u << 21) /**< gl_context::RenderMode, etc */
4265 #define _NEW_BUFFERS (1u << 22) /**< gl_context::Visual, DrawBuffer, */
4266 #define _NEW_CURRENT_ATTRIB (1u << 23) /**< gl_context::Current */
4267 #define _NEW_MULTISAMPLE (1u << 24) /**< gl_context::Multisample */
4268 #define _NEW_TRACK_MATRIX (1u << 25) /**< gl_context::VertexProgram */
4269 #define _NEW_PROGRAM (1u << 26) /**< New program/shader state */
4270 #define _NEW_PROGRAM_CONSTANTS (1u << 27)
4272 #define _NEW_FRAG_CLAMP (1u << 29)
4273 /* gap, re-use for core Mesa state only; use ctx->DriverFlags otherwise */
4274 #define _NEW_VARYING_VP_INPUTS (1u << 31) /**< gl_context::varying_vp_inputs */
4280 * Composite state flags
4283 #define _NEW_TEXTURE (_NEW_TEXTURE_OBJECT | _NEW_TEXTURE_STATE)
4285 #define _MESA_NEW_NEED_EYE_COORDS (_NEW_LIGHT | \
4286 _NEW_TEXTURE_STATE | \
4291 #define _MESA_NEW_SEPARATE_SPECULAR (_NEW_LIGHT | \
4301 /* This has to be included here. */
4306 * Display list flags.
4307 * Strictly this is a tnl-private concept, but it doesn't seem
4308 * worthwhile adding a tnl private structure just to hold this one bit
4311 #define DLIST_DANGLING_REFS 0x1
4314 /** Opaque declaration of display list payload data type */
4315 union gl_dlist_node
;
4319 * Provide a location where information about a display list can be
4320 * collected. Could be extended with driverPrivate structures,
4321 * etc. in the future.
4323 struct gl_display_list
4326 GLchar
*Label
; /**< GL_KHR_debug */
4327 GLbitfield Flags
; /**< DLIST_x flags */
4328 /** The dlist commands are in a linked list of nodes */
4329 union gl_dlist_node
*Head
;
4334 * State used during display list compilation and execution.
4336 struct gl_dlist_state
4338 GLuint CallDepth
; /**< Current recursion calling depth */
4340 struct gl_display_list
*CurrentList
; /**< List currently being compiled */
4341 union gl_dlist_node
*CurrentBlock
; /**< Pointer to current block of nodes */
4342 GLuint CurrentPos
; /**< Index into current block of nodes */
4344 GLvertexformat ListVtxfmt
;
4346 GLubyte ActiveAttribSize
[VERT_ATTRIB_MAX
];
4347 GLfloat CurrentAttrib
[VERT_ATTRIB_MAX
][4];
4349 GLubyte ActiveMaterialSize
[MAT_ATTRIB_MAX
];
4350 GLfloat CurrentMaterial
[MAT_ATTRIB_MAX
][4];
4353 /* State known to have been set by the currently-compiling display
4354 * list. Used to eliminate some redundant state changes.
4362 * These are a mapping of the GL_ARB_debug_output/GL_KHR_debug enums
4363 * to small enums suitable for use as an array index.
4366 enum mesa_debug_source
{
4367 MESA_DEBUG_SOURCE_API
,
4368 MESA_DEBUG_SOURCE_WINDOW_SYSTEM
,
4369 MESA_DEBUG_SOURCE_SHADER_COMPILER
,
4370 MESA_DEBUG_SOURCE_THIRD_PARTY
,
4371 MESA_DEBUG_SOURCE_APPLICATION
,
4372 MESA_DEBUG_SOURCE_OTHER
,
4373 MESA_DEBUG_SOURCE_COUNT
4376 enum mesa_debug_type
{
4377 MESA_DEBUG_TYPE_ERROR
,
4378 MESA_DEBUG_TYPE_DEPRECATED
,
4379 MESA_DEBUG_TYPE_UNDEFINED
,
4380 MESA_DEBUG_TYPE_PORTABILITY
,
4381 MESA_DEBUG_TYPE_PERFORMANCE
,
4382 MESA_DEBUG_TYPE_OTHER
,
4383 MESA_DEBUG_TYPE_MARKER
,
4384 MESA_DEBUG_TYPE_PUSH_GROUP
,
4385 MESA_DEBUG_TYPE_POP_GROUP
,
4386 MESA_DEBUG_TYPE_COUNT
4389 enum mesa_debug_severity
{
4390 MESA_DEBUG_SEVERITY_LOW
,
4391 MESA_DEBUG_SEVERITY_MEDIUM
,
4392 MESA_DEBUG_SEVERITY_HIGH
,
4393 MESA_DEBUG_SEVERITY_NOTIFICATION
,
4394 MESA_DEBUG_SEVERITY_COUNT
4400 * Driver-specific state flags.
4402 * These are or'd with gl_context::NewDriverState to notify a driver about
4403 * a state change. The driver sets the flags at context creation and
4404 * the meaning of the bits set is opaque to core Mesa.
4406 struct gl_driver_flags
4408 /** gl_context::Array::_DrawArrays (vertex array state) */
4411 /** gl_context::TransformFeedback::CurrentObject */
4412 uint64_t NewTransformFeedback
;
4414 /** gl_context::TransformFeedback::CurrentObject::shader_program */
4415 uint64_t NewTransformFeedbackProg
;
4417 /** gl_context::RasterDiscard */
4418 uint64_t NewRasterizerDiscard
;
4421 * gl_context::UniformBufferBindings
4422 * gl_shader_program::UniformBlocks
4424 uint64_t NewUniformBuffer
;
4427 * gl_context::ShaderStorageBufferBindings
4428 * gl_shader_program::ShaderStorageBlocks
4430 uint64_t NewShaderStorageBuffer
;
4432 uint64_t NewTextureBuffer
;
4435 * gl_context::AtomicBufferBindings
4437 uint64_t NewAtomicBuffer
;
4440 * gl_context::ImageUnits
4442 uint64_t NewImageUnits
;
4445 * gl_context::TessCtrlProgram::patch_default_*
4447 uint64_t NewDefaultTessLevels
;
4450 * gl_context::IntelConservativeRasterization
4452 uint64_t NewIntelConservativeRasterization
;
4455 * gl_context::Scissor::WindowRects
4457 uint64_t NewWindowRectangles
;
4459 /** gl_context::Color::sRGBEnabled */
4460 uint64_t NewFramebufferSRGB
;
4462 /** gl_context::Scissor::EnableFlags */
4463 uint64_t NewScissorTest
;
4465 /** gl_context::Scissor::ScissorArray */
4466 uint64_t NewScissorRect
;
4468 /** gl_context::Color::Alpha* */
4469 uint64_t NewAlphaTest
;
4471 /** gl_context::Color::Blend/Dither */
4474 /** gl_context::Color::BlendColor */
4475 uint64_t NewBlendColor
;
4477 /** gl_context::Color::Color/Index */
4478 uint64_t NewColorMask
;
4480 /** gl_context::Depth */
4483 /** gl_context::Color::LogicOp/ColorLogicOp/IndexLogicOp */
4484 uint64_t NewLogicOp
;
4486 /** gl_context::Multisample::Enabled */
4487 uint64_t NewMultisampleEnable
;
4489 /** gl_context::Multisample::SampleAlphaTo* */
4490 uint64_t NewSampleAlphaToXEnable
;
4492 /** gl_context::Multisample::SampleCoverage/SampleMaskValue */
4493 uint64_t NewSampleMask
;
4495 /** gl_context::Multisample::(Min)SampleShading */
4496 uint64_t NewSampleShading
;
4498 /** gl_context::Stencil */
4499 uint64_t NewStencil
;
4501 /** gl_context::Transform::ClipOrigin/ClipDepthMode */
4502 uint64_t NewClipControl
;
4504 /** gl_context::Transform::EyeUserPlane */
4505 uint64_t NewClipPlane
;
4507 /** gl_context::Transform::ClipPlanesEnabled */
4508 uint64_t NewClipPlaneEnable
;
4510 /** gl_context::Transform::DepthClamp */
4511 uint64_t NewDepthClamp
;
4513 /** gl_context::Line */
4514 uint64_t NewLineState
;
4516 /** gl_context::Polygon */
4517 uint64_t NewPolygonState
;
4519 /** gl_context::PolygonStipple */
4520 uint64_t NewPolygonStipple
;
4522 /** gl_context::ViewportArray */
4523 uint64_t NewViewport
;
4525 /** Shader constants (uniforms, program parameters, state constants) */
4526 uint64_t NewShaderConstants
[MESA_SHADER_STAGES
];
4529 struct gl_uniform_buffer_binding
4531 struct gl_buffer_object
*BufferObject
;
4532 /** Start of uniform block data in the buffer */
4534 /** Size of data allowed to be referenced from the buffer (in bytes) */
4537 * glBindBufferBase() indicates that the Size should be ignored and only
4538 * limited by the current size of the BufferObject.
4540 GLboolean AutomaticSize
;
4543 struct gl_shader_storage_buffer_binding
4545 struct gl_buffer_object
*BufferObject
;
4546 /** Start of shader storage block data in the buffer */
4548 /** Size of data allowed to be referenced from the buffer (in bytes) */
4551 * glBindBufferBase() indicates that the Size should be ignored and only
4552 * limited by the current size of the BufferObject.
4554 GLboolean AutomaticSize
;
4558 * ARB_shader_image_load_store image unit.
4560 struct gl_image_unit
4563 * Texture object bound to this unit.
4565 struct gl_texture_object
*TexObj
;
4568 * Level of the texture object bound to this unit.
4573 * \c GL_TRUE if the whole level is bound as an array of layers, \c
4574 * GL_FALSE if only some specific layer of the texture is bound.
4580 * Layer of the texture object bound to this unit as specified by the
4586 * Layer of the texture object bound to this unit, or zero if the
4587 * whole level is bound.
4592 * Access allowed to this texture image. Either \c GL_READ_ONLY,
4593 * \c GL_WRITE_ONLY or \c GL_READ_WRITE.
4598 * GL internal format that determines the interpretation of the
4599 * image memory when shader image operations are performed through
4605 * Mesa format corresponding to \c Format.
4607 mesa_format _ActualFormat
;
4612 * Binding point for an atomic counter buffer object.
4614 struct gl_atomic_buffer_binding
4616 struct gl_buffer_object
*BufferObject
;
4622 * Shader subroutines storage
4624 struct gl_subroutine_index_binding
4630 struct gl_texture_handle_object
4632 struct gl_texture_object
*texObj
;
4633 struct gl_sampler_object
*sampObj
;
4637 struct gl_image_handle_object
4639 struct gl_image_unit imgObj
;
4644 * Mesa rendering context.
4646 * This is the central context data structure for Mesa. Almost all
4647 * OpenGL state is contained in this structure.
4648 * Think of this as a base class from which device drivers will derive
4653 /** State possibly shared with other contexts in the address space */
4654 struct gl_shared_state
*Shared
;
4656 /** \name API function pointer tables */
4661 * The current dispatch table for non-displaylist-saving execution, either
4662 * BeginEnd or OutsideBeginEnd
4664 struct _glapi_table
*Exec
;
4666 * The normal dispatch table for non-displaylist-saving, non-begin/end
4668 struct _glapi_table
*OutsideBeginEnd
;
4669 /** The dispatch table used between glNewList() and glEndList() */
4670 struct _glapi_table
*Save
;
4672 * The dispatch table used between glBegin() and glEnd() (outside of a
4673 * display list). Only valid functions between those two are set, which is
4674 * mostly just the set in a GLvertexformat struct.
4676 struct _glapi_table
*BeginEnd
;
4678 * Dispatch table for when a graphics reset has happened.
4680 struct _glapi_table
*ContextLost
;
4682 * Dispatch table used to marshal API calls from the client program to a
4683 * separate server thread. NULL if API calls are not being marshalled to
4686 struct _glapi_table
*MarshalExec
;
4688 * Dispatch table currently in use for fielding API calls from the client
4689 * program. If API calls are being marshalled to another thread, this ==
4690 * MarshalExec. Otherwise it == CurrentServerDispatch.
4692 struct _glapi_table
*CurrentClientDispatch
;
4695 * Dispatch table currently in use for performing API calls. == Save or
4698 struct _glapi_table
*CurrentServerDispatch
;
4702 struct glthread_state
*GLThread
;
4704 struct gl_config Visual
;
4705 struct gl_framebuffer
*DrawBuffer
; /**< buffer for writing */
4706 struct gl_framebuffer
*ReadBuffer
; /**< buffer for reading */
4707 struct gl_framebuffer
*WinSysDrawBuffer
; /**< set with MakeCurrent */
4708 struct gl_framebuffer
*WinSysReadBuffer
; /**< set with MakeCurrent */
4711 * Device driver function pointer table
4713 struct dd_function_table Driver
;
4715 /** Core/Driver constants */
4716 struct gl_constants Const
;
4718 /** \name The various 4x4 matrix stacks */
4720 struct gl_matrix_stack ModelviewMatrixStack
;
4721 struct gl_matrix_stack ProjectionMatrixStack
;
4722 struct gl_matrix_stack TextureMatrixStack
[MAX_TEXTURE_UNITS
];
4723 struct gl_matrix_stack ProgramMatrixStack
[MAX_PROGRAM_MATRICES
];
4724 struct gl_matrix_stack
*CurrentStack
; /**< Points to one of the above stacks */
4727 /** Combined modelview and projection matrix */
4728 GLmatrix _ModelProjectMatrix
;
4730 /** \name Display lists */
4731 struct gl_dlist_state ListState
;
4733 GLboolean ExecuteFlag
; /**< Execute GL commands? */
4734 GLboolean CompileFlag
; /**< Compile GL commands into display list? */
4736 /** Extension information */
4737 struct gl_extensions Extensions
;
4739 /** GL version integer, for example 31 for GL 3.1, or 20 for GLES 2.0. */
4741 char *VersionString
;
4743 /** \name State attribute stack (for glPush/PopAttrib) */
4745 GLuint AttribStackDepth
;
4746 struct gl_attrib_node
*AttribStack
[MAX_ATTRIB_STACK_DEPTH
];
4749 /** \name Renderer attribute groups
4751 * We define a struct for each attribute group to make pushing and popping
4752 * attributes easy. Also it's a good organization.
4755 struct gl_accum_attrib Accum
; /**< Accum buffer attributes */
4756 struct gl_colorbuffer_attrib Color
; /**< Color buffer attributes */
4757 struct gl_current_attrib Current
; /**< Current attributes */
4758 struct gl_depthbuffer_attrib Depth
; /**< Depth buffer attributes */
4759 struct gl_eval_attrib Eval
; /**< Eval attributes */
4760 struct gl_fog_attrib Fog
; /**< Fog attributes */
4761 struct gl_hint_attrib Hint
; /**< Hint attributes */
4762 struct gl_light_attrib Light
; /**< Light attributes */
4763 struct gl_line_attrib Line
; /**< Line attributes */
4764 struct gl_list_attrib List
; /**< List attributes */
4765 struct gl_multisample_attrib Multisample
;
4766 struct gl_pixel_attrib Pixel
; /**< Pixel attributes */
4767 struct gl_point_attrib Point
; /**< Point attributes */
4768 struct gl_polygon_attrib Polygon
; /**< Polygon attributes */
4769 GLuint PolygonStipple
[32]; /**< Polygon stipple */
4770 struct gl_scissor_attrib Scissor
; /**< Scissor attributes */
4771 struct gl_stencil_attrib Stencil
; /**< Stencil buffer attributes */
4772 struct gl_texture_attrib Texture
; /**< Texture attributes */
4773 struct gl_transform_attrib Transform
; /**< Transformation attributes */
4774 struct gl_viewport_attrib ViewportArray
[MAX_VIEWPORTS
]; /**< Viewport attributes */
4777 /** \name Client attribute stack */
4779 GLuint ClientAttribStackDepth
;
4780 struct gl_attrib_node
*ClientAttribStack
[MAX_CLIENT_ATTRIB_STACK_DEPTH
];
4783 /** \name Client attribute groups */
4785 struct gl_array_attrib Array
; /**< Vertex arrays */
4786 struct gl_pixelstore_attrib Pack
; /**< Pixel packing */
4787 struct gl_pixelstore_attrib Unpack
; /**< Pixel unpacking */
4788 struct gl_pixelstore_attrib DefaultPacking
; /**< Default params */
4791 /** \name Other assorted state (not pushed/popped on attribute stack) */
4793 struct gl_pixelmaps PixelMaps
;
4795 struct gl_evaluators EvalMap
; /**< All evaluators */
4796 struct gl_feedback Feedback
; /**< Feedback */
4797 struct gl_selection Select
; /**< Selection */
4799 struct gl_program_state Program
; /**< general program state */
4800 struct gl_vertex_program_state VertexProgram
;
4801 struct gl_fragment_program_state FragmentProgram
;
4802 struct gl_geometry_program_state GeometryProgram
;
4803 struct gl_compute_program_state ComputeProgram
;
4804 struct gl_tess_ctrl_program_state TessCtrlProgram
;
4805 struct gl_tess_eval_program_state TessEvalProgram
;
4806 struct gl_ati_fragment_shader_state ATIFragmentShader
;
4808 struct gl_pipeline_shader_state Pipeline
; /**< GLSL pipeline shader object state */
4809 struct gl_pipeline_object Shader
; /**< GLSL shader object state */
4812 * Current active shader pipeline state
4814 * Almost all internal users want ::_Shader instead of ::Shader. The
4815 * exceptions are bits of legacy GLSL API that do not know about separate
4818 * If a program is active via \c glUseProgram, this will point to
4821 * If a program pipeline is active via \c glBindProgramPipeline, this will
4822 * point to \c ::Pipeline.Current.
4824 * If neither a program nor a program pipeline is active, this will point to
4825 * \c ::Pipeline.Default. This ensures that \c ::_Shader will never be
4828 struct gl_pipeline_object
*_Shader
;
4830 struct gl_query_state Query
; /**< occlusion, timer queries */
4832 struct gl_transform_feedback_state TransformFeedback
;
4834 struct gl_perf_monitor_state PerfMonitor
;
4835 struct gl_perf_query_state PerfQuery
;
4837 struct gl_buffer_object
*DrawIndirectBuffer
; /** < GL_ARB_draw_indirect */
4838 struct gl_buffer_object
*ParameterBuffer
; /** < GL_ARB_indirect_parameters */
4839 struct gl_buffer_object
*DispatchIndirectBuffer
; /** < GL_ARB_compute_shader */
4841 struct gl_buffer_object
*CopyReadBuffer
; /**< GL_ARB_copy_buffer */
4842 struct gl_buffer_object
*CopyWriteBuffer
; /**< GL_ARB_copy_buffer */
4844 struct gl_buffer_object
*QueryBuffer
; /**< GL_ARB_query_buffer_object */
4847 * Current GL_ARB_uniform_buffer_object binding referenced by
4848 * GL_UNIFORM_BUFFER target for glBufferData, glMapBuffer, etc.
4850 struct gl_buffer_object
*UniformBuffer
;
4853 * Current GL_ARB_shader_storage_buffer_object binding referenced by
4854 * GL_SHADER_STORAGE_BUFFER target for glBufferData, glMapBuffer, etc.
4856 struct gl_buffer_object
*ShaderStorageBuffer
;
4859 * Array of uniform buffers for GL_ARB_uniform_buffer_object and GL 3.1.
4860 * This is set up using glBindBufferRange() or glBindBufferBase(). They are
4861 * associated with uniform blocks by glUniformBlockBinding()'s state in the
4864 struct gl_uniform_buffer_binding
4865 UniformBufferBindings
[MAX_COMBINED_UNIFORM_BUFFERS
];
4868 * Array of shader storage buffers for ARB_shader_storage_buffer_object
4869 * and GL 4.3. This is set up using glBindBufferRange() or
4870 * glBindBufferBase(). They are associated with shader storage blocks by
4871 * glShaderStorageBlockBinding()'s state in the shader program.
4873 struct gl_shader_storage_buffer_binding
4874 ShaderStorageBufferBindings
[MAX_COMBINED_SHADER_STORAGE_BUFFERS
];
4877 * Object currently associated with the GL_ATOMIC_COUNTER_BUFFER
4880 struct gl_buffer_object
*AtomicBuffer
;
4883 * Object currently associated w/ the GL_EXTERNAL_VIRTUAL_MEMORY_BUFFER_AMD
4886 struct gl_buffer_object
*ExternalVirtualMemoryBuffer
;
4889 * Array of atomic counter buffer binding points.
4891 struct gl_atomic_buffer_binding
4892 AtomicBufferBindings
[MAX_COMBINED_ATOMIC_BUFFERS
];
4895 * Array of image units for ARB_shader_image_load_store.
4897 struct gl_image_unit ImageUnits
[MAX_IMAGE_UNITS
];
4899 struct gl_subroutine_index_binding SubroutineIndex
[MESA_SHADER_STAGES
];
4902 struct gl_meta_state
*Meta
; /**< for "meta" operations */
4904 /* GL_EXT_framebuffer_object */
4905 struct gl_renderbuffer
*CurrentRenderbuffer
;
4907 GLenum ErrorValue
; /**< Last error code */
4910 * Recognize and silence repeated error debug messages in buggy apps.
4912 const char *ErrorDebugFmtString
;
4913 GLuint ErrorDebugCount
;
4915 /* GL_ARB_debug_output/GL_KHR_debug */
4917 struct gl_debug_state
*Debug
;
4919 GLenum RenderMode
; /**< either GL_RENDER, GL_SELECT, GL_FEEDBACK */
4920 GLbitfield NewState
; /**< bitwise-or of _NEW_* flags */
4921 uint64_t NewDriverState
; /**< bitwise-or of flags from DriverFlags */
4923 struct gl_driver_flags DriverFlags
;
4925 GLboolean ViewportInitialized
; /**< has viewport size been initialized? */
4927 GLbitfield64 varying_vp_inputs
; /**< mask of VERT_BIT_* flags */
4929 /** \name Derived state */
4930 GLbitfield _ImageTransferState
;/**< bitwise-or of IMAGE_*_BIT flags */
4931 GLfloat _EyeZDir
[3];
4932 GLfloat _ModelViewInvScale
;
4933 GLboolean _NeedEyeCoords
;
4934 GLboolean _ForceEyeCoords
;
4936 GLuint TextureStateTimestamp
; /**< detect changes to shared state */
4938 struct gl_list_extensions
*ListExt
; /**< driver dlist extensions */
4940 /** \name For debugging/development only */
4942 GLboolean FirstTimeCurrent
;
4946 * False if this context was created without a config. This is needed
4947 * because the initial state of glDrawBuffers depends on this
4949 GLboolean HasConfig
;
4951 /** software compression/decompression supported or not */
4952 GLboolean Mesa_DXTn
;
4954 GLboolean TextureFormatSupported
[MESA_FORMAT_COUNT
];
4956 GLboolean RasterDiscard
; /**< GL_RASTERIZER_DISCARD */
4957 GLboolean IntelConservativeRasterization
; /**< GL_INTEL_CONSERVATIVE_RASTERIZATION */
4960 * \name Hooks for module contexts.
4962 * These will eventually live in the driver or elsewhere.
4965 void *swrast_context
;
4966 void *swsetup_context
;
4967 void *swtnl_context
;
4968 struct vbo_context
*vbo_context
;
4969 struct st_context
*st
;
4974 * \name NV_vdpau_interop
4977 const void *vdpDevice
;
4978 const void *vdpGetProcAddress
;
4979 struct set
*vdpSurfaces
;
4983 * Has this context observed a GPU reset in any context in the share group?
4985 * Once this field becomes true, it is never reset to false.
4987 GLboolean ShareGroupReset
;
4990 * \name OES_primitive_bounding_box
4992 * Stores the arguments to glPrimitiveBoundingBox
4994 GLfloat PrimitiveBoundingBox
[8];
4996 struct disk_cache
*Cache
;
4999 * \name GL_ARB_bindless_texture
5002 struct hash_table_u64
*ResidentTextureHandles
;
5003 struct hash_table_u64
*ResidentImageHandles
;
5008 * Information about memory usage. All sizes are in kilobytes.
5010 struct gl_memory_info
5012 unsigned total_device_memory
; /**< size of device memory, e.g. VRAM */
5013 unsigned avail_device_memory
; /**< free device memory at the moment */
5014 unsigned total_staging_memory
; /**< size of staging memory, e.g. GART */
5015 unsigned avail_staging_memory
; /**< free staging memory at the moment */
5016 unsigned device_memory_evicted
; /**< size of memory evicted (monotonic counter) */
5017 unsigned nr_device_memory_evictions
; /**< # of evictions (monotonic counter) */
5021 extern int MESA_VERBOSE
;
5022 extern int MESA_DEBUG_FLAGS
;
5023 # define MESA_FUNCTION __func__
5025 # define MESA_VERBOSE 0
5026 # define MESA_DEBUG_FLAGS 0
5027 # define MESA_FUNCTION "a function"
5031 /** The MESA_VERBOSE var is a bitmask of these flags */
5034 VERBOSE_VARRAY
= 0x0001,
5035 VERBOSE_TEXTURE
= 0x0002,
5036 VERBOSE_MATERIAL
= 0x0004,
5037 VERBOSE_PIPELINE
= 0x0008,
5038 VERBOSE_DRIVER
= 0x0010,
5039 VERBOSE_STATE
= 0x0020,
5040 VERBOSE_API
= 0x0040,
5041 VERBOSE_DISPLAY_LIST
= 0x0100,
5042 VERBOSE_LIGHTING
= 0x0200,
5043 VERBOSE_PRIMS
= 0x0400,
5044 VERBOSE_VERTS
= 0x0800,
5045 VERBOSE_DISASSEM
= 0x1000,
5046 VERBOSE_DRAW
= 0x2000,
5047 VERBOSE_SWAPBUFFERS
= 0x4000
5051 /** The MESA_DEBUG_FLAGS var is a bitmask of these flags */
5054 DEBUG_SILENT
= (1 << 0),
5055 DEBUG_ALWAYS_FLUSH
= (1 << 1),
5056 DEBUG_INCOMPLETE_TEXTURE
= (1 << 2),
5057 DEBUG_INCOMPLETE_FBO
= (1 << 3),
5058 DEBUG_CONTEXT
= (1 << 4)
5065 #endif /* MTYPES_H */