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/menums.h"
43 #include "main/config.h"
44 #include "glapi/glapi.h"
45 #include "math/m_matrix.h" /* GLmatrix */
46 #include "compiler/shader_enums.h"
47 #include "compiler/shader_info.h"
48 #include "main/formats.h" /* MESA_FORMAT_COUNT */
49 #include "compiler/glsl/list.h"
50 #include "util/simple_mtx.h"
51 #include "util/u_dynarray.h"
58 #define GET_COLORMASK_BIT(mask, buf, chan) (((mask) >> (4 * (buf) + (chan))) & 0x1)
59 #define GET_COLORMASK(mask, buf) (((mask) >> (4 * (buf))) & 0xf)
63 * \name Some forward type declarations
66 struct _mesa_HashTable
;
67 struct gl_attrib_node
;
68 struct gl_list_extensions
;
70 struct gl_program_cache
;
71 struct gl_texture_object
;
72 struct gl_debug_state
;
75 struct gl_uniform_storage
;
76 struct prog_instruction
;
77 struct gl_program_parameter_list
;
78 struct gl_shader_spirv_data
;
84 /** Extra draw modes beyond GL_POINTS, GL_TRIANGLE_FAN, etc */
85 #define PRIM_MAX GL_PATCHES
86 #define PRIM_OUTSIDE_BEGIN_END (PRIM_MAX + 1)
87 #define PRIM_UNKNOWN (PRIM_MAX + 2)
90 * Determine if the given gl_varying_slot appears in the fragment shader.
92 static inline GLboolean
93 _mesa_varying_slot_in_fs(gl_varying_slot slot
)
96 case VARYING_SLOT_PSIZ
:
97 case VARYING_SLOT_BFC0
:
98 case VARYING_SLOT_BFC1
:
99 case VARYING_SLOT_EDGE
:
100 case VARYING_SLOT_CLIP_VERTEX
:
101 case VARYING_SLOT_LAYER
:
102 case VARYING_SLOT_TESS_LEVEL_OUTER
:
103 case VARYING_SLOT_TESS_LEVEL_INNER
:
104 case VARYING_SLOT_BOUNDING_BOX0
:
105 case VARYING_SLOT_BOUNDING_BOX1
:
113 * Bit flags for all renderbuffers
115 #define BUFFER_BIT_FRONT_LEFT (1 << BUFFER_FRONT_LEFT)
116 #define BUFFER_BIT_BACK_LEFT (1 << BUFFER_BACK_LEFT)
117 #define BUFFER_BIT_FRONT_RIGHT (1 << BUFFER_FRONT_RIGHT)
118 #define BUFFER_BIT_BACK_RIGHT (1 << BUFFER_BACK_RIGHT)
119 #define BUFFER_BIT_AUX0 (1 << BUFFER_AUX0)
120 #define BUFFER_BIT_AUX1 (1 << BUFFER_AUX1)
121 #define BUFFER_BIT_AUX2 (1 << BUFFER_AUX2)
122 #define BUFFER_BIT_AUX3 (1 << BUFFER_AUX3)
123 #define BUFFER_BIT_DEPTH (1 << BUFFER_DEPTH)
124 #define BUFFER_BIT_STENCIL (1 << BUFFER_STENCIL)
125 #define BUFFER_BIT_ACCUM (1 << BUFFER_ACCUM)
126 #define BUFFER_BIT_COLOR0 (1 << BUFFER_COLOR0)
127 #define BUFFER_BIT_COLOR1 (1 << BUFFER_COLOR1)
128 #define BUFFER_BIT_COLOR2 (1 << BUFFER_COLOR2)
129 #define BUFFER_BIT_COLOR3 (1 << BUFFER_COLOR3)
130 #define BUFFER_BIT_COLOR4 (1 << BUFFER_COLOR4)
131 #define BUFFER_BIT_COLOR5 (1 << BUFFER_COLOR5)
132 #define BUFFER_BIT_COLOR6 (1 << BUFFER_COLOR6)
133 #define BUFFER_BIT_COLOR7 (1 << BUFFER_COLOR7)
136 * Mask of all the color buffer bits (but not accum).
138 #define BUFFER_BITS_COLOR (BUFFER_BIT_FRONT_LEFT | \
139 BUFFER_BIT_BACK_LEFT | \
140 BUFFER_BIT_FRONT_RIGHT | \
141 BUFFER_BIT_BACK_RIGHT | \
143 BUFFER_BIT_COLOR0 | \
144 BUFFER_BIT_COLOR1 | \
145 BUFFER_BIT_COLOR2 | \
146 BUFFER_BIT_COLOR3 | \
147 BUFFER_BIT_COLOR4 | \
148 BUFFER_BIT_COLOR5 | \
149 BUFFER_BIT_COLOR6 | \
152 /* Mask of bits for depth+stencil buffers */
153 #define BUFFER_BITS_DEPTH_STENCIL (BUFFER_BIT_DEPTH | BUFFER_BIT_STENCIL)
156 * Framebuffer configuration (aka visual / pixelformat)
157 * Note: some of these fields should be boolean, but it appears that
158 * code in drivers/dri/common/util.c requires int-sized fields.
164 GLuint doubleBufferMode
;
167 GLboolean haveAccumBuffer
;
168 GLboolean haveDepthBuffer
;
169 GLboolean haveStencilBuffer
;
171 GLint redBits
, greenBits
, blueBits
, alphaBits
; /* bits per comp */
172 GLuint redMask
, greenMask
, blueMask
, alphaMask
;
173 GLint rgbBits
; /* total bits for rgb */
174 GLint indexBits
; /* total bits for colorindex */
176 GLint accumRedBits
, accumGreenBits
, accumBlueBits
, accumAlphaBits
;
184 /* EXT_visual_rating / GLX 1.2 */
187 /* EXT_visual_info / GLX 1.2 */
188 GLint transparentPixel
;
189 /* colors are floats scaled to ints */
190 GLint transparentRed
, transparentGreen
, transparentBlue
, transparentAlpha
;
191 GLint transparentIndex
;
193 /* ARB_multisample / SGIS_multisample */
197 /* SGIX_pbuffer / GLX 1.3 */
198 GLint maxPbufferWidth
;
199 GLint maxPbufferHeight
;
200 GLint maxPbufferPixels
;
201 GLint optimalPbufferWidth
; /* Only for SGIX_pbuffer. */
202 GLint optimalPbufferHeight
; /* Only for SGIX_pbuffer. */
204 /* OML_swap_method */
207 /* EXT_texture_from_pixmap */
208 GLint bindToTextureRgb
;
209 GLint bindToTextureRgba
;
210 GLint bindToMipmapTexture
;
211 GLint bindToTextureTargets
;
214 /* EXT_framebuffer_sRGB */
220 * \name Bit flags used for updating material values.
223 #define MAT_ATTRIB_FRONT_AMBIENT 0
224 #define MAT_ATTRIB_BACK_AMBIENT 1
225 #define MAT_ATTRIB_FRONT_DIFFUSE 2
226 #define MAT_ATTRIB_BACK_DIFFUSE 3
227 #define MAT_ATTRIB_FRONT_SPECULAR 4
228 #define MAT_ATTRIB_BACK_SPECULAR 5
229 #define MAT_ATTRIB_FRONT_EMISSION 6
230 #define MAT_ATTRIB_BACK_EMISSION 7
231 #define MAT_ATTRIB_FRONT_SHININESS 8
232 #define MAT_ATTRIB_BACK_SHININESS 9
233 #define MAT_ATTRIB_FRONT_INDEXES 10
234 #define MAT_ATTRIB_BACK_INDEXES 11
235 #define MAT_ATTRIB_MAX 12
237 #define MAT_ATTRIB_AMBIENT(f) (MAT_ATTRIB_FRONT_AMBIENT+(f))
238 #define MAT_ATTRIB_DIFFUSE(f) (MAT_ATTRIB_FRONT_DIFFUSE+(f))
239 #define MAT_ATTRIB_SPECULAR(f) (MAT_ATTRIB_FRONT_SPECULAR+(f))
240 #define MAT_ATTRIB_EMISSION(f) (MAT_ATTRIB_FRONT_EMISSION+(f))
241 #define MAT_ATTRIB_SHININESS(f)(MAT_ATTRIB_FRONT_SHININESS+(f))
242 #define MAT_ATTRIB_INDEXES(f) (MAT_ATTRIB_FRONT_INDEXES+(f))
244 #define MAT_BIT_FRONT_AMBIENT (1<<MAT_ATTRIB_FRONT_AMBIENT)
245 #define MAT_BIT_BACK_AMBIENT (1<<MAT_ATTRIB_BACK_AMBIENT)
246 #define MAT_BIT_FRONT_DIFFUSE (1<<MAT_ATTRIB_FRONT_DIFFUSE)
247 #define MAT_BIT_BACK_DIFFUSE (1<<MAT_ATTRIB_BACK_DIFFUSE)
248 #define MAT_BIT_FRONT_SPECULAR (1<<MAT_ATTRIB_FRONT_SPECULAR)
249 #define MAT_BIT_BACK_SPECULAR (1<<MAT_ATTRIB_BACK_SPECULAR)
250 #define MAT_BIT_FRONT_EMISSION (1<<MAT_ATTRIB_FRONT_EMISSION)
251 #define MAT_BIT_BACK_EMISSION (1<<MAT_ATTRIB_BACK_EMISSION)
252 #define MAT_BIT_FRONT_SHININESS (1<<MAT_ATTRIB_FRONT_SHININESS)
253 #define MAT_BIT_BACK_SHININESS (1<<MAT_ATTRIB_BACK_SHININESS)
254 #define MAT_BIT_FRONT_INDEXES (1<<MAT_ATTRIB_FRONT_INDEXES)
255 #define MAT_BIT_BACK_INDEXES (1<<MAT_ATTRIB_BACK_INDEXES)
258 #define FRONT_MATERIAL_BITS (MAT_BIT_FRONT_EMISSION | \
259 MAT_BIT_FRONT_AMBIENT | \
260 MAT_BIT_FRONT_DIFFUSE | \
261 MAT_BIT_FRONT_SPECULAR | \
262 MAT_BIT_FRONT_SHININESS | \
263 MAT_BIT_FRONT_INDEXES)
265 #define BACK_MATERIAL_BITS (MAT_BIT_BACK_EMISSION | \
266 MAT_BIT_BACK_AMBIENT | \
267 MAT_BIT_BACK_DIFFUSE | \
268 MAT_BIT_BACK_SPECULAR | \
269 MAT_BIT_BACK_SHININESS | \
270 MAT_BIT_BACK_INDEXES)
272 #define ALL_MATERIAL_BITS (FRONT_MATERIAL_BITS | BACK_MATERIAL_BITS)
281 GLfloat Attrib
[MAT_ATTRIB_MAX
][4];
289 #define LIGHT_SPOT 0x1
290 #define LIGHT_LOCAL_VIEWER 0x2
291 #define LIGHT_POSITIONAL 0x4
292 #define LIGHT_NEED_VERTICES (LIGHT_POSITIONAL|LIGHT_LOCAL_VIEWER)
297 * Light source state.
301 GLfloat Ambient
[4]; /**< ambient color */
302 GLfloat Diffuse
[4]; /**< diffuse color */
303 GLfloat Specular
[4]; /**< specular color */
304 GLfloat EyePosition
[4]; /**< position in eye coordinates */
305 GLfloat SpotDirection
[4]; /**< spotlight direction in eye coordinates */
306 GLfloat SpotExponent
;
307 GLfloat SpotCutoff
; /**< in degrees */
308 GLfloat _CosCutoff
; /**< = MAX(0, cos(SpotCutoff)) */
309 GLfloat ConstantAttenuation
;
310 GLfloat LinearAttenuation
;
311 GLfloat QuadraticAttenuation
;
312 GLboolean Enabled
; /**< On/off flag */
315 * \name Derived fields
318 GLbitfield _Flags
; /**< Mask of LIGHT_x bits defined above */
320 GLfloat _Position
[4]; /**< position in eye/obj coordinates */
321 GLfloat _VP_inf_norm
[3]; /**< Norm direction to infinite light */
322 GLfloat _h_inf_norm
[3]; /**< Norm( _VP_inf_norm + <0,0,1> ) */
323 GLfloat _NormSpotDirection
[4]; /**< normalized spotlight direction */
324 GLfloat _VP_inf_spot_attenuation
;
326 GLfloat _MatAmbient
[2][3]; /**< material ambient * light ambient */
327 GLfloat _MatDiffuse
[2][3]; /**< material diffuse * light diffuse */
328 GLfloat _MatSpecular
[2][3]; /**< material spec * light specular */
338 GLfloat Ambient
[4]; /**< ambient color */
339 GLboolean LocalViewer
; /**< Local (or infinite) view point? */
340 GLboolean TwoSide
; /**< Two (or one) sided lighting? */
341 GLenum16 ColorControl
; /**< either GL_SINGLE_COLOR
342 or GL_SEPARATE_SPECULAR_COLOR */
347 * Accumulation buffer attribute group (GL_ACCUM_BUFFER_BIT)
349 struct gl_accum_attrib
351 GLfloat ClearColor
[4]; /**< Accumulation buffer clear color */
356 * Used for storing clear color, texture border color, etc.
357 * The float values are typically unclamped.
368 * Color buffer attribute group (GL_COLOR_BUFFER_BIT).
370 struct gl_colorbuffer_attrib
372 GLuint ClearIndex
; /**< Index for glClear */
373 union gl_color_union ClearColor
; /**< Color for glClear, unclamped */
374 GLuint IndexMask
; /**< Color index write mask */
376 /** 4 colormask bits per draw buffer, max 8 draw buffers. 4*8 = 32 bits */
377 GLbitfield ColorMask
;
379 GLenum16 DrawBuffer
[MAX_DRAW_BUFFERS
]; /**< Which buffer to draw into */
382 * \name alpha testing
385 GLboolean AlphaEnabled
; /**< Alpha test enabled flag */
386 GLenum16 AlphaFunc
; /**< Alpha test function */
387 GLfloat AlphaRefUnclamped
;
388 GLclampf AlphaRef
; /**< Alpha reference value */
395 GLbitfield BlendEnabled
; /**< Per-buffer blend enable flags */
397 /* NOTE: this does _not_ depend on fragment clamping or any other clamping
398 * control, only on the fixed-pointness of the render target.
399 * The query does however depend on fragment color clamping.
401 GLfloat BlendColorUnclamped
[4]; /**< Blending color */
402 GLfloat BlendColor
[4]; /**< Blending color */
406 GLenum16 SrcRGB
; /**< RGB blend source term */
407 GLenum16 DstRGB
; /**< RGB blend dest term */
408 GLenum16 SrcA
; /**< Alpha blend source term */
409 GLenum16 DstA
; /**< Alpha blend dest term */
410 GLenum16 EquationRGB
; /**< GL_ADD, GL_SUBTRACT, etc. */
411 GLenum16 EquationA
; /**< GL_ADD, GL_SUBTRACT, etc. */
413 * Set if any blend factor uses SRC1. Computed at the time blend factors
416 GLboolean _UsesDualSrc
;
417 } Blend
[MAX_DRAW_BUFFERS
];
418 /** Are the blend func terms currently different for each buffer/target? */
419 GLboolean _BlendFuncPerBuffer
;
420 /** Are the blend equations currently different for each buffer/target? */
421 GLboolean _BlendEquationPerBuffer
;
424 * Which advanced blending mode is in use (or BLEND_NONE).
426 * KHR_blend_equation_advanced only allows advanced blending with a single
427 * draw buffer, and NVX_blend_equation_advanced_multi_draw_buffer still
428 * requires all draw buffers to match, so we only need a single value.
430 enum gl_advanced_blend_mode _AdvancedBlendMode
;
432 /** Coherency requested via glEnable(GL_BLEND_ADVANCED_COHERENT_KHR)? */
440 GLboolean IndexLogicOpEnabled
; /**< Color index logic op enabled flag */
441 GLboolean ColorLogicOpEnabled
; /**< RGBA logic op enabled flag */
442 GLenum16 LogicOp
; /**< Logic operator */
443 enum gl_logicop_mode _LogicOp
;
446 GLboolean DitherFlag
; /**< Dither enable flag */
448 GLboolean _ClampFragmentColor
; /** < with GL_FIXED_ONLY_ARB resolved */
449 GLenum16 ClampFragmentColor
; /**< GL_TRUE, GL_FALSE or GL_FIXED_ONLY_ARB */
450 GLenum16 ClampReadColor
; /**< GL_TRUE, GL_FALSE or GL_FIXED_ONLY_ARB */
452 GLboolean sRGBEnabled
; /**< Framebuffer sRGB blending/updating requested */
457 * Current attribute group (GL_CURRENT_BIT).
459 struct gl_current_attrib
462 * \name Current vertex attributes (color, texcoords, etc).
463 * \note Values are valid only after FLUSH_VERTICES has been called.
464 * \note Index and Edgeflag current values are stored as floats in the
465 * SIX and SEVEN attribute slots.
466 * \note We need double storage for 64-bit vertex attributes
468 GLfloat Attrib
[VERT_ATTRIB_MAX
][4*2];
471 * \name Current raster position attributes (always up to date after a
474 GLfloat RasterPos
[4];
475 GLfloat RasterDistance
;
476 GLfloat RasterColor
[4];
477 GLfloat RasterSecondaryColor
[4];
478 GLfloat RasterTexCoords
[MAX_TEXTURE_COORD_UNITS
][4];
479 GLboolean RasterPosValid
;
484 * Depth buffer attribute group (GL_DEPTH_BUFFER_BIT).
486 struct gl_depthbuffer_attrib
488 GLenum16 Func
; /**< Function for depth buffer compare */
489 GLclampd Clear
; /**< Value to clear depth buffer to */
490 GLboolean Test
; /**< Depth buffering enabled flag */
491 GLboolean Mask
; /**< Depth buffer writable? */
492 GLboolean BoundsTest
; /**< GL_EXT_depth_bounds_test */
493 GLfloat BoundsMin
, BoundsMax
;/**< GL_EXT_depth_bounds_test */
498 * Evaluator attribute group (GL_EVAL_BIT).
500 struct gl_eval_attrib
506 GLboolean Map1Color4
;
508 GLboolean Map1Normal
;
509 GLboolean Map1TextureCoord1
;
510 GLboolean Map1TextureCoord2
;
511 GLboolean Map1TextureCoord3
;
512 GLboolean Map1TextureCoord4
;
513 GLboolean Map1Vertex3
;
514 GLboolean Map1Vertex4
;
515 GLboolean Map2Color4
;
517 GLboolean Map2Normal
;
518 GLboolean Map2TextureCoord1
;
519 GLboolean Map2TextureCoord2
;
520 GLboolean Map2TextureCoord3
;
521 GLboolean Map2TextureCoord4
;
522 GLboolean Map2Vertex3
;
523 GLboolean Map2Vertex4
;
524 GLboolean AutoNormal
;
528 * \name Map Grid endpoints and divisions and calculated du values
532 GLfloat MapGrid1u1
, MapGrid1u2
, MapGrid1du
;
533 GLint MapGrid2un
, MapGrid2vn
;
534 GLfloat MapGrid2u1
, MapGrid2u2
, MapGrid2du
;
535 GLfloat MapGrid2v1
, MapGrid2v2
, MapGrid2dv
;
541 * Compressed fog mode.
553 * Fog attribute group (GL_FOG_BIT).
557 GLboolean Enabled
; /**< Fog enabled flag */
558 GLboolean ColorSumEnabled
;
559 uint8_t _PackedMode
; /**< Fog mode as 2 bits */
560 uint8_t _PackedEnabledMode
; /**< Masked CompressedMode */
561 GLfloat ColorUnclamped
[4]; /**< Fog color */
562 GLfloat Color
[4]; /**< Fog color */
563 GLfloat Density
; /**< Density >= 0.0 */
564 GLfloat Start
; /**< Start distance in eye coords */
565 GLfloat End
; /**< End distance in eye coords */
566 GLfloat Index
; /**< Fog index */
567 GLenum16 Mode
; /**< Fog mode */
568 GLenum16 FogCoordinateSource
;/**< GL_EXT_fog_coord */
569 GLenum16 FogDistanceMode
; /**< GL_NV_fog_distance */
574 * Hint attribute group (GL_HINT_BIT).
576 * Values are always one of GL_FASTEST, GL_NICEST, or GL_DONT_CARE.
578 struct gl_hint_attrib
580 GLenum16 PerspectiveCorrection
;
581 GLenum16 PointSmooth
;
583 GLenum16 PolygonSmooth
;
585 GLenum16 TextureCompression
; /**< GL_ARB_texture_compression */
586 GLenum16 GenerateMipmap
; /**< GL_SGIS_generate_mipmap */
587 GLenum16 FragmentShaderDerivative
; /**< GL_ARB_fragment_shader */
592 * Lighting attribute group (GL_LIGHT_BIT).
594 struct gl_light_attrib
596 struct gl_light Light
[MAX_LIGHTS
]; /**< Array of light sources */
597 struct gl_lightmodel Model
; /**< Lighting model */
600 * Front and back material values.
601 * Note: must call FLUSH_VERTICES() before using.
603 struct gl_material Material
;
605 GLboolean Enabled
; /**< Lighting enabled flag */
606 GLboolean ColorMaterialEnabled
;
608 GLenum16 ShadeModel
; /**< GL_FLAT or GL_SMOOTH */
609 GLenum16 ProvokingVertex
; /**< GL_EXT_provoking_vertex */
610 GLenum16 ColorMaterialFace
; /**< GL_FRONT, BACK or FRONT_AND_BACK */
611 GLenum16 ColorMaterialMode
; /**< GL_AMBIENT, GL_DIFFUSE, etc */
612 GLbitfield _ColorMaterialBitmask
; /**< bitmask formed from Face and Mode */
615 GLboolean _ClampVertexColor
;
616 GLenum16 ClampVertexColor
; /**< GL_TRUE, GL_FALSE, GL_FIXED_ONLY */
619 * Derived state for optimizations:
622 GLbitfield _EnabledLights
; /**< bitmask containing enabled lights */
624 GLboolean _NeedEyeCoords
;
625 GLboolean _NeedVertices
; /**< Use fast shader? */
627 GLfloat _BaseColor
[2][3];
633 * Line attribute group (GL_LINE_BIT).
635 struct gl_line_attrib
637 GLboolean SmoothFlag
; /**< GL_LINE_SMOOTH enabled? */
638 GLboolean StippleFlag
; /**< GL_LINE_STIPPLE enabled? */
639 GLushort StipplePattern
; /**< Stipple pattern */
640 GLint StippleFactor
; /**< Stipple repeat factor */
641 GLfloat Width
; /**< Line width */
646 * Display list attribute group (GL_LIST_BIT).
648 struct gl_list_attrib
655 * Multisample attribute group (GL_MULTISAMPLE_BIT).
657 struct gl_multisample_attrib
660 GLboolean SampleAlphaToCoverage
;
661 GLboolean SampleAlphaToOne
;
662 GLboolean SampleCoverage
;
663 GLboolean SampleCoverageInvert
;
664 GLboolean SampleShading
;
666 /* ARB_texture_multisample / GL3.2 additions */
667 GLboolean SampleMask
;
669 GLfloat SampleCoverageValue
; /**< In range [0, 1] */
670 GLfloat MinSampleShadingValue
; /**< In range [0, 1] */
672 /** The GL spec defines this as an array but >32x MSAA is madness */
673 GLbitfield SampleMaskValue
;
678 * A pixelmap (see glPixelMap)
683 GLfloat Map
[MAX_PIXEL_MAP_TABLE
];
688 * Collection of all pixelmaps
692 struct gl_pixelmap RtoR
; /**< i.e. GL_PIXEL_MAP_R_TO_R */
693 struct gl_pixelmap GtoG
;
694 struct gl_pixelmap BtoB
;
695 struct gl_pixelmap AtoA
;
696 struct gl_pixelmap ItoR
;
697 struct gl_pixelmap ItoG
;
698 struct gl_pixelmap ItoB
;
699 struct gl_pixelmap ItoA
;
700 struct gl_pixelmap ItoI
;
701 struct gl_pixelmap StoS
;
706 * Pixel attribute group (GL_PIXEL_MODE_BIT).
708 struct gl_pixel_attrib
710 GLenum16 ReadBuffer
; /**< source buffer for glRead/CopyPixels() */
712 /*--- Begin Pixel Transfer State ---*/
713 /* Fields are in the order in which they're applied... */
715 /** Scale & Bias (index shift, offset) */
717 GLfloat RedBias
, RedScale
;
718 GLfloat GreenBias
, GreenScale
;
719 GLfloat BlueBias
, BlueScale
;
720 GLfloat AlphaBias
, AlphaScale
;
721 GLfloat DepthBias
, DepthScale
;
722 GLint IndexShift
, IndexOffset
;
726 /* Note: actual pixel maps are not part of this attrib group */
727 GLboolean MapColorFlag
;
728 GLboolean MapStencilFlag
;
730 /*--- End Pixel Transfer State ---*/
733 GLfloat ZoomX
, ZoomY
;
738 * Point attribute group (GL_POINT_BIT).
740 struct gl_point_attrib
742 GLfloat Size
; /**< User-specified point size */
743 GLfloat Params
[3]; /**< GL_EXT_point_parameters */
744 GLfloat MinSize
, MaxSize
; /**< GL_EXT_point_parameters */
745 GLfloat Threshold
; /**< GL_EXT_point_parameters */
746 GLboolean SmoothFlag
; /**< True if GL_POINT_SMOOTH is enabled */
747 GLboolean _Attenuated
; /**< True if Params != [1, 0, 0] */
748 GLboolean PointSprite
; /**< GL_NV/ARB_point_sprite */
749 GLbitfield CoordReplace
; /**< GL_ARB_point_sprite*/
750 GLenum16 SpriteRMode
; /**< GL_NV_point_sprite (only!) */
751 GLenum16 SpriteOrigin
; /**< GL_ARB_point_sprite */
756 * Polygon attribute group (GL_POLYGON_BIT).
758 struct gl_polygon_attrib
760 GLenum16 FrontFace
; /**< Either GL_CW or GL_CCW */
761 GLenum FrontMode
; /**< Either GL_POINT, GL_LINE or GL_FILL */
762 GLenum BackMode
; /**< Either GL_POINT, GL_LINE or GL_FILL */
763 GLboolean CullFlag
; /**< Culling on/off flag */
764 GLboolean SmoothFlag
; /**< True if GL_POLYGON_SMOOTH is enabled */
765 GLboolean StippleFlag
; /**< True if GL_POLYGON_STIPPLE is enabled */
766 GLenum16 CullFaceMode
; /**< Culling mode GL_FRONT or GL_BACK */
767 GLfloat OffsetFactor
; /**< Polygon offset factor, from user */
768 GLfloat OffsetUnits
; /**< Polygon offset units, from user */
769 GLfloat OffsetClamp
; /**< Polygon offset clamp, from user */
770 GLboolean OffsetPoint
; /**< Offset in GL_POINT mode */
771 GLboolean OffsetLine
; /**< Offset in GL_LINE mode */
772 GLboolean OffsetFill
; /**< Offset in GL_FILL mode */
777 * Scissor attributes (GL_SCISSOR_BIT).
779 struct gl_scissor_rect
781 GLint X
, Y
; /**< Lower left corner of box */
782 GLsizei Width
, Height
; /**< Size of box */
786 struct gl_scissor_attrib
788 GLbitfield EnableFlags
; /**< Scissor test enabled? */
789 struct gl_scissor_rect ScissorArray
[MAX_VIEWPORTS
];
790 GLint NumWindowRects
; /**< Count of enabled window rectangles */
791 GLenum16 WindowRectMode
; /**< Whether to include or exclude the rects */
792 struct gl_scissor_rect WindowRects
[MAX_WINDOW_RECTANGLES
];
797 * Stencil attribute group (GL_STENCIL_BUFFER_BIT).
799 * Three sets of stencil data are tracked so that OpenGL 2.0,
800 * GL_EXT_stencil_two_side, and GL_ATI_separate_stencil can all be supported
801 * simultaneously. In each of the stencil state arrays, element 0 corresponds
802 * to GL_FRONT. Element 1 corresponds to the OpenGL 2.0 /
803 * GL_ATI_separate_stencil GL_BACK state. Element 2 corresponds to the
804 * GL_EXT_stencil_two_side GL_BACK state.
806 * The derived value \c _BackFace is either 1 or 2 depending on whether or
807 * not GL_STENCIL_TEST_TWO_SIDE_EXT is enabled.
809 * The derived value \c _TestTwoSide is set when the front-face and back-face
810 * stencil state are different.
812 struct gl_stencil_attrib
814 GLboolean Enabled
; /**< Enabled flag */
815 GLboolean TestTwoSide
; /**< GL_EXT_stencil_two_side */
816 GLubyte ActiveFace
; /**< GL_EXT_stencil_two_side (0 or 2) */
817 GLubyte _BackFace
; /**< Current back stencil state (1 or 2) */
818 GLenum16 Function
[3]; /**< Stencil function */
819 GLenum16 FailFunc
[3]; /**< Fail function */
820 GLenum16 ZPassFunc
[3]; /**< Depth buffer pass function */
821 GLenum16 ZFailFunc
[3]; /**< Depth buffer fail function */
822 GLint Ref
[3]; /**< Reference value */
823 GLuint ValueMask
[3]; /**< Value mask */
824 GLuint WriteMask
[3]; /**< Write mask */
825 GLuint Clear
; /**< Clear value */
830 * Bit flags for each type of texture object
833 #define TEXTURE_2D_MULTISAMPLE_BIT (1 << TEXTURE_2D_MULTISAMPLE_INDEX)
834 #define TEXTURE_2D_MULTISAMPLE_ARRAY_BIT (1 << TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX)
835 #define TEXTURE_CUBE_ARRAY_BIT (1 << TEXTURE_CUBE_ARRAY_INDEX)
836 #define TEXTURE_BUFFER_BIT (1 << TEXTURE_BUFFER_INDEX)
837 #define TEXTURE_2D_ARRAY_BIT (1 << TEXTURE_2D_ARRAY_INDEX)
838 #define TEXTURE_1D_ARRAY_BIT (1 << TEXTURE_1D_ARRAY_INDEX)
839 #define TEXTURE_EXTERNAL_BIT (1 << TEXTURE_EXTERNAL_INDEX)
840 #define TEXTURE_CUBE_BIT (1 << TEXTURE_CUBE_INDEX)
841 #define TEXTURE_3D_BIT (1 << TEXTURE_3D_INDEX)
842 #define TEXTURE_RECT_BIT (1 << TEXTURE_RECT_INDEX)
843 #define TEXTURE_2D_BIT (1 << TEXTURE_2D_INDEX)
844 #define TEXTURE_1D_BIT (1 << TEXTURE_1D_INDEX)
849 * Texture image state. Drivers will typically create a subclass of this
850 * with extra fields for memory buffers, etc.
852 struct gl_texture_image
854 GLint InternalFormat
; /**< Internal format as given by the user */
855 GLenum16 _BaseFormat
; /**< Either GL_RGB, GL_RGBA, GL_ALPHA,
856 * GL_LUMINANCE, GL_LUMINANCE_ALPHA,
857 * GL_INTENSITY, GL_DEPTH_COMPONENT or
858 * GL_DEPTH_STENCIL_EXT only. Used for
859 * choosing TexEnv arithmetic.
861 mesa_format TexFormat
; /**< The actual texture memory format */
863 GLuint Border
; /**< 0 or 1 */
864 GLuint Width
; /**< = 2^WidthLog2 + 2*Border */
865 GLuint Height
; /**< = 2^HeightLog2 + 2*Border */
866 GLuint Depth
; /**< = 2^DepthLog2 + 2*Border */
867 GLuint Width2
; /**< = Width - 2*Border */
868 GLuint Height2
; /**< = Height - 2*Border */
869 GLuint Depth2
; /**< = Depth - 2*Border */
870 GLuint WidthLog2
; /**< = log2(Width2) */
871 GLuint HeightLog2
; /**< = log2(Height2) */
872 GLuint DepthLog2
; /**< = log2(Depth2) */
873 GLuint MaxNumLevels
; /**< = maximum possible number of mipmap
874 levels, computed from the dimensions */
876 struct gl_texture_object
*TexObject
; /**< Pointer back to parent object */
877 GLuint Level
; /**< Which mipmap level am I? */
878 /** Cube map face: index into gl_texture_object::Image[] array */
881 /** GL_ARB_texture_multisample */
882 GLuint NumSamples
; /**< Sample count, or 0 for non-multisample */
883 GLboolean FixedSampleLocations
; /**< Same sample locations for all pixels? */
888 * Indexes for cube map faces.
903 * Sampler object state. These objects are new with GL_ARB_sampler_objects
904 * and OpenGL 3.3. Legacy texture objects also contain a sampler object.
906 struct gl_sampler_object
910 GLchar
*Label
; /**< GL_KHR_debug */
913 GLenum16 WrapS
; /**< S-axis texture image wrap mode */
914 GLenum16 WrapT
; /**< T-axis texture image wrap mode */
915 GLenum16 WrapR
; /**< R-axis texture image wrap mode */
916 GLenum16 MinFilter
; /**< minification filter */
917 GLenum16 MagFilter
; /**< magnification filter */
918 GLenum16 sRGBDecode
; /**< GL_DECODE_EXT or GL_SKIP_DECODE_EXT */
919 union gl_color_union BorderColor
; /**< Interpreted according to texture format */
920 GLfloat MinLod
; /**< min lambda, OpenGL 1.2 */
921 GLfloat MaxLod
; /**< max lambda, OpenGL 1.2 */
922 GLfloat LodBias
; /**< OpenGL 1.4 */
923 GLfloat MaxAnisotropy
; /**< GL_EXT_texture_filter_anisotropic */
924 GLenum16 CompareMode
; /**< GL_ARB_shadow */
925 GLenum16 CompareFunc
; /**< GL_ARB_shadow */
926 GLboolean CubeMapSeamless
; /**< GL_AMD_seamless_cubemap_per_texture */
928 /** GL_ARB_bindless_texture */
929 bool HandleAllocated
;
930 struct util_dynarray Handles
;
935 * Texture object state. Contains the array of mipmap images, border color,
936 * wrap modes, filter modes, and shadow/texcompare state.
938 struct gl_texture_object
940 simple_mtx_t Mutex
; /**< for thread safety */
941 GLint RefCount
; /**< reference count */
942 GLuint Name
; /**< the user-visible texture object ID */
943 GLenum16 Target
; /**< GL_TEXTURE_1D, GL_TEXTURE_2D, etc. */
944 GLenum16 DepthMode
; /**< GL_ARB_depth_texture */
945 GLchar
*Label
; /**< GL_KHR_debug */
947 struct gl_sampler_object Sampler
;
949 gl_texture_index TargetIndex
; /**< The gl_texture_unit::CurrentTex index.
950 Only valid when Target is valid. */
951 GLfloat Priority
; /**< in [0,1] */
952 GLint MaxLevel
; /**< max mipmap level (max=1000), OpenGL 1.2 */
953 GLint BaseLevel
; /**< min mipmap level, OpenGL 1.2 */
954 GLbyte _MaxLevel
; /**< actual max mipmap level (q in the spec) */
955 GLfloat _MaxLambda
; /**< = _MaxLevel - BaseLevel (q - p in spec) */
956 GLint CropRect
[4]; /**< GL_OES_draw_texture */
957 GLenum Swizzle
[4]; /**< GL_EXT_texture_swizzle */
958 GLushort _Swizzle
; /**< same as Swizzle, but SWIZZLE_* format */
959 GLbyte ImmutableLevels
; /**< ES 3.0 / ARB_texture_view */
960 GLboolean GenerateMipmap
; /**< GL_SGIS_generate_mipmap */
961 GLboolean _BaseComplete
; /**< Is the base texture level valid? */
962 GLboolean _MipmapComplete
; /**< Is the whole mipmap valid? */
963 GLboolean _IsIntegerFormat
; /**< Does the texture store integer values? */
964 GLboolean _RenderToTexture
; /**< Any rendering to this texture? */
965 GLboolean Purgeable
; /**< Is the buffer purgeable under memory
967 GLboolean Immutable
; /**< GL_ARB_texture_storage */
968 GLboolean _IsFloat
; /**< GL_OES_float_texture */
969 GLboolean _IsHalfFloat
; /**< GL_OES_half_float_texture */
970 bool StencilSampling
; /**< Should we sample stencil instead of depth? */
971 bool HandleAllocated
; /**< GL_ARB_bindless_texture */
973 /** GL_OES_EGL_image_external */
974 GLubyte RequiredTextureImageUnits
;
976 GLubyte MinLevel
; /**< GL_ARB_texture_view */
977 GLubyte NumLevels
; /**< GL_ARB_texture_view */
978 GLushort MinLayer
; /**< GL_ARB_texture_view */
979 GLushort NumLayers
; /**< GL_ARB_texture_view */
981 /** GL_EXT_memory_object */
982 GLenum16 TextureTiling
;
984 /** GL_ARB_shader_image_load_store */
985 GLenum16 ImageFormatCompatibilityType
;
987 /** GL_ARB_texture_buffer_object */
988 GLenum16 BufferObjectFormat
;
989 /** Equivalent Mesa format for BufferObjectFormat. */
990 mesa_format _BufferObjectFormat
;
991 struct gl_buffer_object
*BufferObject
;
993 /** GL_ARB_texture_buffer_range */
994 GLintptr BufferOffset
;
995 GLsizeiptr BufferSize
; /**< if this is -1, use BufferObject->Size instead */
997 /** Actual texture images, indexed by [cube face] and [mipmap level] */
998 struct gl_texture_image
*Image
[MAX_FACES
][MAX_TEXTURE_LEVELS
];
1000 /** GL_ARB_bindless_texture */
1001 struct util_dynarray SamplerHandles
;
1002 struct util_dynarray ImageHandles
;
1006 /** Up to four combiner sources are possible with GL_NV_texture_env_combine4 */
1007 #define MAX_COMBINER_TERMS 4
1011 * Texture combine environment state.
1013 struct gl_tex_env_combine_state
1015 GLenum16 ModeRGB
; /**< GL_REPLACE, GL_DECAL, GL_ADD, etc. */
1016 GLenum16 ModeA
; /**< GL_REPLACE, GL_DECAL, GL_ADD, etc. */
1017 /** Source terms: GL_PRIMARY_COLOR, GL_TEXTURE, etc */
1018 GLenum16 SourceRGB
[MAX_COMBINER_TERMS
];
1019 GLenum16 SourceA
[MAX_COMBINER_TERMS
];
1020 /** Source operands: GL_SRC_COLOR, GL_ONE_MINUS_SRC_COLOR, etc */
1021 GLenum16 OperandRGB
[MAX_COMBINER_TERMS
];
1022 GLenum16 OperandA
[MAX_COMBINER_TERMS
];
1023 GLubyte ScaleShiftRGB
; /**< 0, 1 or 2 */
1024 GLubyte ScaleShiftA
; /**< 0, 1 or 2 */
1025 GLubyte _NumArgsRGB
; /**< Number of inputs used for the RGB combiner */
1026 GLubyte _NumArgsA
; /**< Number of inputs used for the A combiner */
1030 /** Compressed TexEnv effective Combine mode */
1031 enum gl_tex_env_mode
1033 TEXENV_MODE_REPLACE
, /* r = a0 */
1034 TEXENV_MODE_MODULATE
, /* r = a0 * a1 */
1035 TEXENV_MODE_ADD
, /* r = a0 + a1 */
1036 TEXENV_MODE_ADD_SIGNED
, /* r = a0 + a1 - 0.5 */
1037 TEXENV_MODE_INTERPOLATE
, /* r = a0 * a2 + a1 * (1 - a2) */
1038 TEXENV_MODE_SUBTRACT
, /* r = a0 - a1 */
1039 TEXENV_MODE_DOT3_RGB
, /* r = a0 . a1 */
1040 TEXENV_MODE_DOT3_RGB_EXT
, /* r = a0 . a1 */
1041 TEXENV_MODE_DOT3_RGBA
, /* r = a0 . a1 */
1042 TEXENV_MODE_DOT3_RGBA_EXT
, /* r = a0 . a1 */
1043 TEXENV_MODE_MODULATE_ADD_ATI
, /* r = a0 * a2 + a1 */
1044 TEXENV_MODE_MODULATE_SIGNED_ADD_ATI
, /* r = a0 * a2 + a1 - 0.5 */
1045 TEXENV_MODE_MODULATE_SUBTRACT_ATI
, /* r = a0 * a2 - a1 */
1046 TEXENV_MODE_ADD_PRODUCTS_NV
, /* r = a0 * a1 + a2 * a3 */
1047 TEXENV_MODE_ADD_PRODUCTS_SIGNED_NV
, /* r = a0 * a1 + a2 * a3 - 0.5 */
1051 /** Compressed TexEnv Combine source */
1052 enum gl_tex_env_source
1054 TEXENV_SRC_TEXTURE0
,
1055 TEXENV_SRC_TEXTURE1
,
1056 TEXENV_SRC_TEXTURE2
,
1057 TEXENV_SRC_TEXTURE3
,
1058 TEXENV_SRC_TEXTURE4
,
1059 TEXENV_SRC_TEXTURE5
,
1060 TEXENV_SRC_TEXTURE6
,
1061 TEXENV_SRC_TEXTURE7
,
1063 TEXENV_SRC_PREVIOUS
,
1064 TEXENV_SRC_PRIMARY_COLOR
,
1065 TEXENV_SRC_CONSTANT
,
1071 /** Compressed TexEnv Combine operand */
1072 enum gl_tex_env_operand
1075 TEXENV_OPR_ONE_MINUS_COLOR
,
1077 TEXENV_OPR_ONE_MINUS_ALPHA
,
1081 /** Compressed TexEnv Combine argument */
1082 struct gl_tex_env_argument
1085 __extension__
uint8_t Source
:4; /**< TEXENV_SRC_x */
1086 __extension__
uint8_t Operand
:2; /**< TEXENV_OPR_x */
1088 uint8_t Source
; /**< SRC_x */
1089 uint8_t Operand
; /**< OPR_x */
1095 * Compressed TexEnv Combine state.
1097 struct gl_tex_env_combine_packed
1099 uint32_t ModeRGB
:4; /**< Effective mode for RGB as 4 bits */
1100 uint32_t ModeA
:4; /**< Effective mode for RGB as 4 bits */
1101 uint32_t ScaleShiftRGB
:2; /**< 0, 1 or 2 */
1102 uint32_t ScaleShiftA
:2; /**< 0, 1 or 2 */
1103 uint32_t NumArgsRGB
:3; /**< Number of inputs used for the RGB combiner */
1104 uint32_t NumArgsA
:3; /**< Number of inputs used for the A combiner */
1105 /** Source arguments in a packed manner */
1106 struct gl_tex_env_argument ArgsRGB
[MAX_COMBINER_TERMS
];
1107 struct gl_tex_env_argument ArgsA
[MAX_COMBINER_TERMS
];
1112 * TexGenEnabled flags.
1119 #define STR_BITS (S_BIT | T_BIT | R_BIT)
1124 * Bit flag versions of the corresponding GL_ constants.
1127 #define TEXGEN_SPHERE_MAP 0x1
1128 #define TEXGEN_OBJ_LINEAR 0x2
1129 #define TEXGEN_EYE_LINEAR 0x4
1130 #define TEXGEN_REFLECTION_MAP_NV 0x8
1131 #define TEXGEN_NORMAL_MAP_NV 0x10
1133 #define TEXGEN_NEED_NORMALS (TEXGEN_SPHERE_MAP | \
1134 TEXGEN_REFLECTION_MAP_NV | \
1135 TEXGEN_NORMAL_MAP_NV)
1136 #define TEXGEN_NEED_EYE_COORD (TEXGEN_SPHERE_MAP | \
1137 TEXGEN_REFLECTION_MAP_NV | \
1138 TEXGEN_NORMAL_MAP_NV | \
1144 /** Tex-gen enabled for texture unit? */
1145 #define ENABLE_TEXGEN(unit) (1 << (unit))
1147 /** Non-identity texture matrix for texture unit? */
1148 #define ENABLE_TEXMAT(unit) (1 << (unit))
1152 * Texture coord generation state.
1156 GLenum16 Mode
; /**< GL_EYE_LINEAR, GL_SPHERE_MAP, etc */
1157 GLbitfield8 _ModeBit
; /**< TEXGEN_x bit corresponding to Mode */
1158 GLfloat ObjectPlane
[4];
1159 GLfloat EyePlane
[4];
1164 * Sampler-related subset of a texture unit, like current texture objects.
1166 struct gl_texture_unit
1168 GLfloat LodBias
; /**< for biasing mipmap levels */
1170 /** Texture targets that have a non-default texture bound */
1171 GLbitfield _BoundTextures
;
1173 /** Current sampler object (GL_ARB_sampler_objects) */
1174 struct gl_sampler_object
*Sampler
;
1176 /** Current texture object pointers */
1177 struct gl_texture_object
*CurrentTex
[NUM_TEXTURE_TARGETS
];
1179 /** Points to highest priority, complete and enabled texture object */
1180 struct gl_texture_object
*_Current
;
1185 * Fixed-function-related subset of a texture unit, like enable flags,
1186 * texture environment/function/combiners, and texgen state.
1188 struct gl_fixedfunc_texture_unit
1190 GLbitfield16 Enabled
; /**< bitmask of TEXTURE_*_BIT flags */
1192 GLenum16 EnvMode
; /**< GL_MODULATE, GL_DECAL, GL_BLEND, etc. */
1193 GLclampf EnvColor
[4];
1194 GLfloat EnvColorUnclamped
[4];
1196 struct gl_texgen GenS
;
1197 struct gl_texgen GenT
;
1198 struct gl_texgen GenR
;
1199 struct gl_texgen GenQ
;
1200 GLbitfield8 TexGenEnabled
; /**< Bitwise-OR of [STRQ]_BIT values */
1201 GLbitfield8 _GenFlags
; /**< Bitwise-OR of Gen[STRQ]._ModeBit */
1204 * \name GL_EXT_texture_env_combine
1206 struct gl_tex_env_combine_state Combine
;
1209 * Derived state based on \c EnvMode and the \c BaseFormat of the
1210 * currently enabled texture.
1212 struct gl_tex_env_combine_state _EnvMode
;
1214 /** Current compressed TexEnv & Combine state */
1215 struct gl_tex_env_combine_packed _CurrentCombinePacked
;
1218 * Currently enabled combiner state. This will point to either
1219 * \c Combine or \c _EnvMode.
1221 struct gl_tex_env_combine_state
*_CurrentCombine
;
1226 * Texture attribute group (GL_TEXTURE_BIT).
1228 struct gl_texture_attrib
1230 struct gl_texture_object
*ProxyTex
[NUM_TEXTURE_TARGETS
];
1232 /** GL_ARB_texture_buffer_object */
1233 struct gl_buffer_object
*BufferObject
;
1235 GLuint CurrentUnit
; /**< GL_ACTIVE_TEXTURE */
1237 /** Texture coord units/sets used for fragment texturing */
1238 GLbitfield8 _EnabledCoordUnits
;
1240 /** Texture coord units that have texgen enabled */
1241 GLbitfield8 _TexGenEnabled
;
1243 /** Texture coord units that have non-identity matrices */
1244 GLbitfield8 _TexMatEnabled
;
1246 /** Bitwise-OR of all Texture.Unit[i]._GenFlags */
1247 GLbitfield8 _GenFlags
;
1249 /** Largest index of a texture unit with _Current != NULL. */
1250 GLshort _MaxEnabledTexImageUnit
;
1252 /** Largest index + 1 of texture units that have had any CurrentTex set. */
1253 GLubyte NumCurrentTexUsed
;
1255 /** GL_ARB_seamless_cubemap */
1256 GLboolean CubeMapSeamless
;
1258 struct gl_texture_unit Unit
[MAX_COMBINED_TEXTURE_IMAGE_UNITS
];
1259 struct gl_fixedfunc_texture_unit FixedFuncUnit
[MAX_TEXTURE_COORD_UNITS
];
1264 * Data structure representing a single clip plane (e.g. one of the elements
1265 * of the ctx->Transform.EyeUserPlane or ctx->Transform._ClipUserPlane array).
1267 typedef GLfloat gl_clip_plane
[4];
1271 * Transformation attribute group (GL_TRANSFORM_BIT).
1273 struct gl_transform_attrib
1275 GLenum16 MatrixMode
; /**< Matrix mode */
1276 gl_clip_plane EyeUserPlane
[MAX_CLIP_PLANES
]; /**< User clip planes */
1277 gl_clip_plane _ClipUserPlane
[MAX_CLIP_PLANES
]; /**< derived */
1278 GLbitfield ClipPlanesEnabled
; /**< on/off bitmask */
1279 GLboolean Normalize
; /**< Normalize all normals? */
1280 GLboolean RescaleNormals
; /**< GL_EXT_rescale_normal */
1281 GLboolean RasterPositionUnclipped
; /**< GL_IBM_rasterpos_clip */
1282 GLboolean DepthClamp
; /**< GL_ARB_depth_clamp */
1283 /** GL_ARB_clip_control */
1284 GLenum16 ClipOrigin
; /**< GL_LOWER_LEFT or GL_UPPER_LEFT */
1285 GLenum16 ClipDepthMode
;/**< GL_NEGATIVE_ONE_TO_ONE or GL_ZERO_TO_ONE */
1290 * Viewport attribute group (GL_VIEWPORT_BIT).
1292 struct gl_viewport_attrib
1294 GLfloat X
, Y
; /**< position */
1295 GLfloat Width
, Height
; /**< size */
1296 GLfloat Near
, Far
; /**< Depth buffer range */
1301 * Fields describing a mapped buffer range.
1303 struct gl_buffer_mapping
1305 GLbitfield AccessFlags
; /**< Mask of GL_MAP_x_BIT flags */
1306 GLvoid
*Pointer
; /**< User-space address of mapping */
1307 GLintptr Offset
; /**< Mapped offset */
1308 GLsizeiptr Length
; /**< Mapped length */
1313 * Usages we've seen for a buffer object.
1317 USAGE_UNIFORM_BUFFER
= 0x1,
1318 USAGE_TEXTURE_BUFFER
= 0x2,
1319 USAGE_ATOMIC_COUNTER_BUFFER
= 0x4,
1320 USAGE_SHADER_STORAGE_BUFFER
= 0x8,
1321 USAGE_TRANSFORM_FEEDBACK_BUFFER
= 0x10,
1322 USAGE_PIXEL_PACK_BUFFER
= 0x20,
1323 USAGE_DISABLE_MINMAX_CACHE
= 0x40,
1328 * GL_ARB_vertex/pixel_buffer_object buffer object
1330 struct gl_buffer_object
1334 GLchar
*Label
; /**< GL_KHR_debug */
1335 GLenum16 Usage
; /**< GL_STREAM_DRAW_ARB, GL_STREAM_READ_ARB, etc. */
1336 GLbitfield StorageFlags
; /**< GL_MAP_PERSISTENT_BIT, etc. */
1337 GLsizeiptrARB Size
; /**< Size of buffer storage in bytes */
1338 GLubyte
*Data
; /**< Location of storage either in RAM or VRAM. */
1339 GLboolean DeletePending
; /**< true if buffer object is removed from the hash */
1340 GLboolean Written
; /**< Ever written to? (for debugging) */
1341 GLboolean Purgeable
; /**< Is the buffer purgeable under memory pressure? */
1342 GLboolean Immutable
; /**< GL_ARB_buffer_storage */
1343 gl_buffer_usage UsageHistory
; /**< How has this buffer been used so far? */
1345 /** Counters used for buffer usage warnings */
1346 GLuint NumSubDataCalls
;
1347 GLuint NumMapBufferWriteCalls
;
1349 struct gl_buffer_mapping Mappings
[MAP_COUNT
];
1351 /** Memoization of min/max index computations for static index buffers */
1352 simple_mtx_t MinMaxCacheMutex
;
1353 struct hash_table
*MinMaxCache
;
1354 unsigned MinMaxCacheHitIndices
;
1355 unsigned MinMaxCacheMissIndices
;
1356 bool MinMaxCacheDirty
;
1358 bool HandleAllocated
; /**< GL_ARB_bindless_texture */
1363 * Client pixel packing/unpacking attributes
1365 struct gl_pixelstore_attrib
1373 GLboolean SwapBytes
;
1375 GLboolean Invert
; /**< GL_MESA_pack_invert */
1376 GLint CompressedBlockWidth
; /**< GL_ARB_compressed_texture_pixel_storage */
1377 GLint CompressedBlockHeight
;
1378 GLint CompressedBlockDepth
;
1379 GLint CompressedBlockSize
;
1380 struct gl_buffer_object
*BufferObj
; /**< GL_ARB_pixel_buffer_object */
1385 * Enum for defining the mapping for the position/generic0 attribute.
1387 * Do not change the order of the values as these are used as
1392 ATTRIBUTE_MAP_MODE_IDENTITY
, /**< 1:1 mapping */
1393 ATTRIBUTE_MAP_MODE_POSITION
, /**< get position and generic0 from position */
1394 ATTRIBUTE_MAP_MODE_GENERIC0
, /**< get position and generic0 from generic0 */
1395 ATTRIBUTE_MAP_MODE_MAX
/**< for sizing arrays */
1396 } gl_attribute_map_mode
;
1400 * Attributes to describe a vertex array.
1402 * Contains the size, type, format and normalization flag,
1403 * along with the index of a vertex buffer binding point.
1405 * Note that the Stride field corresponds to VERTEX_ATTRIB_ARRAY_STRIDE
1406 * and is only present for backwards compatibility reasons.
1407 * Rendering always uses VERTEX_BINDING_STRIDE.
1408 * The gl*Pointer() functions will set VERTEX_ATTRIB_ARRAY_STRIDE
1409 * and VERTEX_BINDING_STRIDE to the same value, while
1410 * glBindVertexBuffer() will only set VERTEX_BINDING_STRIDE.
1412 struct gl_array_attributes
1414 /** Points to client array data. Not used when a VBO is bound */
1416 /** Offset of the first element relative to the binding offset */
1417 GLuint RelativeOffset
;
1418 GLshort Stride
; /**< Stride as specified with gl*Pointer() */
1419 GLenum16 Type
; /**< Datatype: GL_FLOAT, GL_INT, etc */
1420 GLenum16 Format
; /**< Default: GL_RGBA, but may be GL_BGRA */
1421 GLboolean Enabled
; /**< Whether the array is enabled */
1422 GLubyte Size
; /**< Components per element (1,2,3,4) */
1423 unsigned Normalized
:1; /**< Fixed-point values are normalized when converted to floats */
1424 unsigned Integer
:1; /**< Fixed-point values are not converted to floats */
1425 unsigned Doubles
:1; /**< double precision values are not converted to floats */
1426 unsigned _ElementSize
:8; /**< Size of each element in bytes */
1427 /** Index into gl_vertex_array_object::BufferBinding[] array */
1428 unsigned BufferBindingIndex
:6;
1433 * This describes the buffer object used for a vertex array (or
1434 * multiple vertex arrays). If BufferObj points to the default/null
1435 * buffer object, then the vertex array lives in user memory and not a VBO.
1437 struct gl_vertex_buffer_binding
1439 GLintptr Offset
; /**< User-specified offset */
1440 GLsizei Stride
; /**< User-specified stride */
1441 GLuint InstanceDivisor
; /**< GL_ARB_instanced_arrays */
1442 struct gl_buffer_object
*BufferObj
; /**< GL_ARB_vertex_buffer_object */
1443 GLbitfield _BoundArrays
; /**< Arrays bound to this binding point */
1448 * Vertex array information which is derived from gl_array_attributes
1449 * and gl_vertex_buffer_binding information. Used by the VBO module and
1452 struct gl_vertex_array
1454 /** Vertex attribute array */
1455 const struct gl_array_attributes
*VertexAttrib
;
1456 /** Vertex buffer binding */
1457 const struct gl_vertex_buffer_binding
*BufferBinding
;
1462 * A representation of "Vertex Array Objects" (VAOs) from OpenGL 3.1+ /
1463 * the GL_ARB_vertex_array_object extension.
1465 struct gl_vertex_array_object
1467 /** Name of the VAO as received from glGenVertexArray. */
1472 GLchar
*Label
; /**< GL_KHR_debug */
1475 * Has this array object been bound?
1477 GLboolean EverBound
;
1480 * Marked to true if the object is shared between contexts and immutable.
1481 * Then reference counting is done using atomics and thread safe.
1482 * Is used for dlist VAOs.
1484 bool SharedAndImmutable
;
1486 /** Vertex attribute arrays */
1487 struct gl_array_attributes VertexAttrib
[VERT_ATTRIB_MAX
];
1489 /** Vertex buffer bindings */
1490 struct gl_vertex_buffer_binding BufferBinding
[VERT_ATTRIB_MAX
];
1492 /** Mask indicating which vertex arrays have vertex buffer associated. */
1493 GLbitfield VertexAttribBufferMask
;
1495 /** Mask of VERT_BIT_* values indicating which arrays are enabled */
1496 GLbitfield _Enabled
;
1498 /** Denotes the way the position/generic0 attribute is mapped */
1499 gl_attribute_map_mode _AttributeMapMode
;
1501 /** Mask of VERT_BIT_* values indicating changed/dirty arrays */
1502 GLbitfield NewArrays
;
1504 /** The index buffer (also known as the element array buffer in OpenGL). */
1505 struct gl_buffer_object
*IndexBufferObj
;
1510 * Vertex array state
1512 struct gl_array_attrib
1514 /** Currently bound array object. */
1515 struct gl_vertex_array_object
*VAO
;
1517 /** The default vertex array object */
1518 struct gl_vertex_array_object
*DefaultVAO
;
1520 /** The last VAO accessed by a DSA function */
1521 struct gl_vertex_array_object
*LastLookedUpVAO
;
1523 /** Array objects (GL_ARB_vertex_array_object) */
1524 struct _mesa_HashTable
*Objects
;
1526 GLint ActiveTexture
; /**< Client Active Texture */
1527 GLuint LockFirst
; /**< GL_EXT_compiled_vertex_array */
1528 GLuint LockCount
; /**< GL_EXT_compiled_vertex_array */
1531 * \name Primitive restart controls
1533 * Primitive restart is enabled if either \c PrimitiveRestart or
1534 * \c PrimitiveRestartFixedIndex is set.
1537 GLboolean PrimitiveRestart
;
1538 GLboolean PrimitiveRestartFixedIndex
;
1539 GLboolean _PrimitiveRestart
;
1540 GLuint RestartIndex
;
1543 /* GL_ARB_vertex_buffer_object */
1544 struct gl_buffer_object
*ArrayBufferObj
;
1547 * Vertex array object that is used with the currently active draw command.
1548 * The _DrawVAO is either set to the currently bound VAO for array type
1549 * draws or to internal VAO's set up by the vbo module to execute immediate
1550 * mode or display list draws.
1552 struct gl_vertex_array_object
*_DrawVAO
;
1554 * The VERT_BIT_* bits effectively enabled from the current _DrawVAO.
1555 * This is always a subset of _mesa_get_vao_vp_inputs(_DrawVAO)
1556 * but may omit those arrays that shall not be referenced by the current
1557 * gl_vertex_program_state::_VPMode. For example the generic attributes are
1558 * maked out form the _DrawVAO's enabled arrays when a fixed function
1559 * array draw is executed.
1561 GLbitfield _DrawVAOEnabledAttribs
;
1563 * Initially or if the VAO referenced by _DrawVAO is deleted the _DrawVAO
1564 * pointer is set to the _EmptyVAO which is just an empty VAO all the time.
1566 struct gl_vertex_array_object
*_EmptyVAO
;
1569 * Vertex arrays as consumed by a driver.
1570 * The array pointer is set up only by the VBO module.
1572 const struct gl_vertex_array
*_DrawArrays
; /**< 0..VERT_ATTRIB_MAX-1 */
1574 /** Legal array datatypes and the API for which they have been computed */
1575 GLbitfield LegalTypesMask
;
1576 gl_api LegalTypesMaskAPI
;
1581 * Feedback buffer state
1586 GLbitfield _Mask
; /**< FB_* bits */
1594 * Selection buffer state
1598 GLuint
*Buffer
; /**< selection buffer */
1599 GLuint BufferSize
; /**< size of the selection buffer */
1600 GLuint BufferCount
; /**< number of values in the selection buffer */
1601 GLuint Hits
; /**< number of records in the selection buffer */
1602 GLuint NameStackDepth
; /**< name stack depth */
1603 GLuint NameStack
[MAX_NAME_STACK_DEPTH
]; /**< name stack */
1604 GLboolean HitFlag
; /**< hit flag */
1605 GLfloat HitMinZ
; /**< minimum hit depth */
1606 GLfloat HitMaxZ
; /**< maximum hit depth */
1611 * 1-D Evaluator control points
1615 GLuint Order
; /**< Number of control points */
1616 GLfloat u1
, u2
, du
; /**< u1, u2, 1.0/(u2-u1) */
1617 GLfloat
*Points
; /**< Points to contiguous control points */
1622 * 2-D Evaluator control points
1626 GLuint Uorder
; /**< Number of control points in U dimension */
1627 GLuint Vorder
; /**< Number of control points in V dimension */
1630 GLfloat
*Points
; /**< Points to contiguous control points */
1635 * All evaluator control point state
1637 struct gl_evaluators
1643 struct gl_1d_map Map1Vertex3
;
1644 struct gl_1d_map Map1Vertex4
;
1645 struct gl_1d_map Map1Index
;
1646 struct gl_1d_map Map1Color4
;
1647 struct gl_1d_map Map1Normal
;
1648 struct gl_1d_map Map1Texture1
;
1649 struct gl_1d_map Map1Texture2
;
1650 struct gl_1d_map Map1Texture3
;
1651 struct gl_1d_map Map1Texture4
;
1658 struct gl_2d_map Map2Vertex3
;
1659 struct gl_2d_map Map2Vertex4
;
1660 struct gl_2d_map Map2Index
;
1661 struct gl_2d_map Map2Color4
;
1662 struct gl_2d_map Map2Normal
;
1663 struct gl_2d_map Map2Texture1
;
1664 struct gl_2d_map Map2Texture2
;
1665 struct gl_2d_map Map2Texture3
;
1666 struct gl_2d_map Map2Texture4
;
1671 struct gl_transform_feedback_varying_info
1682 * Per-output info vertex shaders for transform feedback.
1684 struct gl_transform_feedback_output
1686 uint32_t OutputRegister
;
1687 uint32_t OutputBuffer
;
1688 uint32_t NumComponents
;
1691 /** offset (in DWORDs) of this output within the interleaved structure */
1695 * Offset into the output register of the data to output. For example,
1696 * if NumComponents is 2 and ComponentOffset is 1, then the data to
1697 * offset is in the y and z components of the output register.
1699 uint32_t ComponentOffset
;
1703 struct gl_transform_feedback_buffer
1707 uint32_t NumVaryings
;
1710 * Total number of components stored in each buffer. This may be used by
1711 * hardware back-ends to determine the correct stride when interleaving
1712 * multiple transform feedback outputs in the same buffer.
1717 * Which transform feedback stream this buffer binding is associated with.
1723 /** Post-link transform feedback info. */
1724 struct gl_transform_feedback_info
1726 unsigned NumOutputs
;
1728 /* Bitmask of active buffer indices. */
1729 unsigned ActiveBuffers
;
1731 struct gl_transform_feedback_output
*Outputs
;
1733 /** Transform feedback varyings used for the linking of this shader program.
1735 * Use for glGetTransformFeedbackVarying().
1737 struct gl_transform_feedback_varying_info
*Varyings
;
1740 struct gl_transform_feedback_buffer Buffers
[MAX_FEEDBACK_BUFFERS
];
1745 * Transform feedback object state
1747 struct gl_transform_feedback_object
1749 GLuint Name
; /**< AKA the object ID */
1751 GLchar
*Label
; /**< GL_KHR_debug */
1752 GLboolean Active
; /**< Is transform feedback enabled? */
1753 GLboolean Paused
; /**< Is transform feedback paused? */
1754 GLboolean EndedAnytime
; /**< Has EndTransformFeedback been called
1756 GLboolean EverBound
; /**< Has this object been bound? */
1759 * GLES: if Active is true, remaining number of primitives which can be
1760 * rendered without overflow. This is necessary to track because GLES
1761 * requires us to generate INVALID_OPERATION if a call to glDrawArrays or
1762 * glDrawArraysInstanced would overflow transform feedback buffers.
1763 * Undefined if Active is false.
1765 * Not tracked for desktop GL since it's unnecessary.
1767 unsigned GlesRemainingPrims
;
1770 * The program active when BeginTransformFeedback() was called.
1771 * When active and unpaused, this equals ctx->Shader.CurrentProgram[stage],
1772 * where stage is the pipeline stage that is the source of data for
1773 * transform feedback.
1775 struct gl_program
*program
;
1777 /** The feedback buffers */
1778 GLuint BufferNames
[MAX_FEEDBACK_BUFFERS
];
1779 struct gl_buffer_object
*Buffers
[MAX_FEEDBACK_BUFFERS
];
1781 /** Start of feedback data in dest buffer */
1782 GLintptr Offset
[MAX_FEEDBACK_BUFFERS
];
1785 * Max data to put into dest buffer (in bytes). Computed based on
1786 * RequestedSize and the actual size of the buffer.
1788 GLsizeiptr Size
[MAX_FEEDBACK_BUFFERS
];
1791 * Size that was specified when the buffer was bound. If the buffer was
1792 * bound with glBindBufferBase() or glBindBufferOffsetEXT(), this value is
1795 GLsizeiptr RequestedSize
[MAX_FEEDBACK_BUFFERS
];
1800 * Context state for transform feedback.
1802 struct gl_transform_feedback_state
1804 GLenum16 Mode
; /**< GL_POINTS, GL_LINES or GL_TRIANGLES */
1806 /** The general binding point (GL_TRANSFORM_FEEDBACK_BUFFER) */
1807 struct gl_buffer_object
*CurrentBuffer
;
1809 /** The table of all transform feedback objects */
1810 struct _mesa_HashTable
*Objects
;
1812 /** The current xform-fb object (GL_TRANSFORM_FEEDBACK_BINDING) */
1813 struct gl_transform_feedback_object
*CurrentObject
;
1815 /** The default xform-fb object (Name==0) */
1816 struct gl_transform_feedback_object
*DefaultObject
;
1821 * A "performance monitor" as described in AMD_performance_monitor.
1823 struct gl_perf_monitor_object
1827 /** True if the monitor is currently active (Begin called but not End). */
1831 * True if the monitor has ended.
1833 * This is distinct from !Active because it may never have began.
1838 * A list of groups with currently active counters.
1840 * ActiveGroups[g] == n if there are n counters active from group 'g'.
1842 unsigned *ActiveGroups
;
1845 * An array of bitsets, subscripted by group ID, then indexed by counter ID.
1847 * Checking whether counter 'c' in group 'g' is active can be done via:
1849 * BITSET_TEST(ActiveCounters[g], c)
1851 GLuint
**ActiveCounters
;
1855 union gl_perf_monitor_counter_value
1863 struct gl_perf_monitor_counter
1865 /** Human readable name for the counter. */
1869 * Data type of the counter. Valid values are FLOAT, UNSIGNED_INT,
1870 * UNSIGNED_INT64_AMD, and PERCENTAGE_AMD.
1874 /** Minimum counter value. */
1875 union gl_perf_monitor_counter_value Minimum
;
1877 /** Maximum counter value. */
1878 union gl_perf_monitor_counter_value Maximum
;
1882 struct gl_perf_monitor_group
1884 /** Human readable name for the group. */
1888 * Maximum number of counters in this group which can be active at the
1891 GLuint MaxActiveCounters
;
1893 /** Array of counters within this group. */
1894 const struct gl_perf_monitor_counter
*Counters
;
1900 * A query object instance as described in INTEL_performance_query.
1902 * NB: We want to keep this and the corresponding backend structure
1903 * relatively lean considering that applications may expect to
1904 * allocate enough objects to be able to query around all draw calls
1907 struct gl_perf_query_object
1909 GLuint Id
; /**< hash table ID/name */
1910 unsigned Used
:1; /**< has been used for 1 or more queries */
1911 unsigned Active
:1; /**< inside Begin/EndPerfQuery */
1912 unsigned Ready
:1; /**< result is ready? */
1917 * Context state for AMD_performance_monitor.
1919 struct gl_perf_monitor_state
1921 /** Array of performance monitor groups (indexed by group ID) */
1922 const struct gl_perf_monitor_group
*Groups
;
1925 /** The table of all performance monitors. */
1926 struct _mesa_HashTable
*Monitors
;
1931 * Context state for INTEL_performance_query.
1933 struct gl_perf_query_state
1935 struct _mesa_HashTable
*Objects
; /**< The table of all performance query objects */
1940 * A bindless sampler object.
1942 struct gl_bindless_sampler
1944 /** Texture unit (set by glUniform1()). */
1947 /** Whether this bindless sampler is bound to a unit. */
1950 /** Texture Target (TEXTURE_1D/2D/3D/etc_INDEX). */
1951 gl_texture_index target
;
1953 /** Pointer to the base of the data. */
1959 * A bindless image object.
1961 struct gl_bindless_image
1963 /** Image unit (set by glUniform1()). */
1966 /** Whether this bindless image is bound to a unit. */
1969 /** Access qualifier (GL_READ_WRITE, GL_READ_ONLY, GL_WRITE_ONLY) */
1972 /** Pointer to the base of the data. */
1978 * Current vertex processing mode: fixed function vs. shader.
1979 * In reality, fixed function is probably implemented by a shader but that's
1980 * not what we care about here.
1984 VP_MODE_FF
, /**< legacy / fixed function */
1985 VP_MODE_SHADER
, /**< ARB vertex program or GLSL vertex shader */
1986 VP_MODE_MAX
/**< for sizing arrays */
1987 } gl_vertex_processing_mode
;
1991 * Base class for any kind of program object
1995 /** FIXME: This must be first until we split shader_info from nir_shader */
1996 struct shader_info info
;
2000 GLubyte
*String
; /**< Null-terminated program text */
2002 /** GL_VERTEX/FRAGMENT_PROGRAM_ARB, GL_GEOMETRY_PROGRAM_NV */
2004 GLenum16 Format
; /**< String encoding format */
2006 GLboolean _Used
; /**< Ever used for drawing? Used for debugging */
2008 struct nir_shader
*nir
;
2010 /* Saved and restored with metadata. Freed with ralloc. */
2011 void *driver_cache_blob
;
2012 size_t driver_cache_blob_size
;
2014 bool is_arb_asm
; /** Is this an ARB assembly-style program */
2016 /** Is this program written to on disk shader cache */
2017 bool program_written_to_cache
;
2019 /** Subset of OutputsWritten outputs written with non-zero index. */
2020 GLbitfield64 SecondaryOutputsWritten
;
2021 /** TEXTURE_x_BIT bitmask */
2022 GLbitfield16 TexturesUsed
[MAX_COMBINED_TEXTURE_IMAGE_UNITS
];
2023 /** Bitfield of which samplers are used */
2024 GLbitfield SamplersUsed
;
2025 /** Texture units used for shadow sampling. */
2026 GLbitfield ShadowSamplers
;
2027 /** Texture units used for samplerExternalOES */
2028 GLbitfield ExternalSamplersUsed
;
2030 /* Fragement shader only fields */
2031 GLboolean OriginUpperLeft
;
2032 GLboolean PixelCenterInteger
;
2034 /** Named parameters, constants, etc. from program text */
2035 struct gl_program_parameter_list
*Parameters
;
2037 /** Map from sampler unit to texture unit (set by glUniform1i()) */
2038 GLubyte SamplerUnits
[MAX_SAMPLERS
];
2040 /* FIXME: We should be able to make this struct a union. However some
2041 * drivers (i915/fragment_programs, swrast/prog_execute) mix the use of
2042 * these fields, we should fix this.
2045 /** Fields used by GLSL programs */
2047 /** Data shared by gl_program and gl_shader_program */
2048 struct gl_shader_program_data
*data
;
2050 struct gl_active_atomic_buffer
**AtomicBuffers
;
2052 /** Post-link transform feedback info. */
2053 struct gl_transform_feedback_info
*LinkedTransformFeedback
;
2056 * Number of types for subroutine uniforms.
2058 GLuint NumSubroutineUniformTypes
;
2061 * Subroutine uniform remap table
2062 * based on the program level uniform remap table.
2064 GLuint NumSubroutineUniforms
; /* non-sparse total */
2065 GLuint NumSubroutineUniformRemapTable
;
2066 struct gl_uniform_storage
**SubroutineUniformRemapTable
;
2069 * Num of subroutine functions for this stage and storage for them.
2071 GLuint NumSubroutineFunctions
;
2072 GLuint MaxSubroutineFunctionIndex
;
2073 struct gl_subroutine_function
*SubroutineFunctions
;
2076 * Map from image uniform index to image unit (set by glUniform1i())
2078 * An image uniform index is associated with each image uniform by
2079 * the linker. The image index associated with each uniform is
2080 * stored in the \c gl_uniform_storage::image field.
2082 GLubyte ImageUnits
[MAX_IMAGE_UNIFORMS
];
2085 * Access qualifier specified in the shader for each image uniform
2086 * index. Either \c GL_READ_ONLY, \c GL_WRITE_ONLY or \c
2089 * It may be different, though only more strict than the value of
2090 * \c gl_image_unit::Access for the corresponding image unit.
2092 GLenum16 ImageAccess
[MAX_IMAGE_UNIFORMS
];
2094 struct gl_uniform_block
**UniformBlocks
;
2095 struct gl_uniform_block
**ShaderStorageBlocks
;
2097 /** Which texture target is being sampled
2098 * (TEXTURE_1D/2D/3D/etc_INDEX)
2100 GLubyte SamplerTargets
[MAX_SAMPLERS
];
2103 * Number of samplers declared with the bindless_sampler layout
2104 * qualifier as specified by ARB_bindless_texture.
2106 GLuint NumBindlessSamplers
;
2107 GLboolean HasBoundBindlessSampler
;
2108 struct gl_bindless_sampler
*BindlessSamplers
;
2111 * Number of images declared with the bindless_image layout qualifier
2112 * as specified by ARB_bindless_texture.
2114 GLuint NumBindlessImages
;
2115 GLboolean HasBoundBindlessImage
;
2116 struct gl_bindless_image
*BindlessImages
;
2121 * A bitmask of gl_advanced_blend_mode values
2123 GLbitfield BlendSupport
;
2128 /** ARB assembly-style program fields */
2130 struct prog_instruction
*Instructions
;
2133 * Local parameters used by the program.
2135 * It's dynamically allocated because it is rarely used (just
2136 * assembly-style programs), and MAX_PROGRAM_LOCAL_PARAMS entries
2137 * once it's allocated.
2139 GLfloat (*LocalParams
)[4];
2141 /** Bitmask of which register files are read/written with indirect
2142 * addressing. Mask of (1 << PROGRAM_x) bits.
2144 GLbitfield IndirectRegisterFiles
;
2146 /** Logical counts */
2148 GLuint NumInstructions
;
2149 GLuint NumTemporaries
;
2150 GLuint NumParameters
;
2151 GLuint NumAttributes
;
2152 GLuint NumAddressRegs
;
2153 GLuint NumAluInstructions
;
2154 GLuint NumTexInstructions
;
2155 GLuint NumTexIndirections
;
2157 /** Native, actual h/w counts */
2159 GLuint NumNativeInstructions
;
2160 GLuint NumNativeTemporaries
;
2161 GLuint NumNativeParameters
;
2162 GLuint NumNativeAttributes
;
2163 GLuint NumNativeAddressRegs
;
2164 GLuint NumNativeAluInstructions
;
2165 GLuint NumNativeTexInstructions
;
2166 GLuint NumNativeTexIndirections
;
2169 /** Used by ARB assembly-style programs. Can only be true for vertex
2172 GLboolean IsPositionInvariant
;
2179 * State common to vertex and fragment programs.
2181 struct gl_program_state
2183 GLint ErrorPos
; /* GL_PROGRAM_ERROR_POSITION_ARB/NV */
2184 const char *ErrorString
; /* GL_PROGRAM_ERROR_STRING_ARB/NV */
2189 * Context state for vertex programs.
2191 struct gl_vertex_program_state
2193 GLboolean Enabled
; /**< User-set GL_VERTEX_PROGRAM_ARB/NV flag */
2194 GLboolean PointSizeEnabled
; /**< GL_VERTEX_PROGRAM_POINT_SIZE_ARB/NV */
2195 GLboolean TwoSideEnabled
; /**< GL_VERTEX_PROGRAM_TWO_SIDE_ARB/NV */
2196 /** Should fixed-function T&L be implemented with a vertex prog? */
2197 GLboolean _MaintainTnlProgram
;
2199 struct gl_program
*Current
; /**< User-bound vertex program */
2201 /** Currently enabled and valid vertex program (including internal
2202 * programs, user-defined vertex programs and GLSL vertex shaders).
2203 * This is the program we must use when rendering.
2205 struct gl_program
*_Current
;
2207 GLfloat Parameters
[MAX_PROGRAM_ENV_PARAMS
][4]; /**< Env params */
2209 /** Program to emulate fixed-function T&L (see above) */
2210 struct gl_program
*_TnlProgram
;
2212 /** Cache of fixed-function programs */
2213 struct gl_program_cache
*Cache
;
2215 GLboolean _Overriden
;
2218 * If we have a vertex program, a TNL program or no program at all.
2219 * Note that this value should be kept up to date all the time,
2220 * nevertheless its correctness is asserted in _mesa_update_state.
2221 * The reason is to avoid calling _mesa_update_state twice we need
2222 * this value on draw *before* actually calling _mesa_update_state.
2223 * Also it should need to get recomputed only on changes to the
2224 * vertex program which are heavyweight already.
2226 gl_vertex_processing_mode _VPMode
;
2230 * Context state for tessellation control programs.
2232 struct gl_tess_ctrl_program_state
2234 /** Currently bound and valid shader. */
2235 struct gl_program
*_Current
;
2237 GLint patch_vertices
;
2238 GLfloat patch_default_outer_level
[4];
2239 GLfloat patch_default_inner_level
[2];
2243 * Context state for tessellation evaluation programs.
2245 struct gl_tess_eval_program_state
2247 /** Currently bound and valid shader. */
2248 struct gl_program
*_Current
;
2252 * Context state for geometry programs.
2254 struct gl_geometry_program_state
2257 * Currently enabled and valid program (including internal programs
2258 * and compiled shader programs).
2260 struct gl_program
*_Current
;
2264 * Context state for fragment programs.
2266 struct gl_fragment_program_state
2268 GLboolean Enabled
; /**< User-set fragment program enable flag */
2269 /** Should fixed-function texturing be implemented with a fragment prog? */
2270 GLboolean _MaintainTexEnvProgram
;
2272 struct gl_program
*Current
; /**< User-bound fragment program */
2275 * Currently enabled and valid fragment program (including internal
2276 * programs, user-defined fragment programs and GLSL fragment shaders).
2277 * This is the program we must use when rendering.
2279 struct gl_program
*_Current
;
2281 GLfloat Parameters
[MAX_PROGRAM_ENV_PARAMS
][4]; /**< Env params */
2283 /** Program to emulate fixed-function texture env/combine (see above) */
2284 struct gl_program
*_TexEnvProgram
;
2286 /** Cache of fixed-function programs */
2287 struct gl_program_cache
*Cache
;
2292 * Context state for compute programs.
2294 struct gl_compute_program_state
2296 /** Currently enabled and valid program (including internal programs
2297 * and compiled shader programs).
2299 struct gl_program
*_Current
;
2304 * ATI_fragment_shader runtime state
2307 struct atifs_instruction
;
2308 struct atifs_setupinst
;
2311 * ATI fragment shader
2313 struct ati_fragment_shader
2317 struct atifs_instruction
*Instructions
[2];
2318 struct atifs_setupinst
*SetupInst
[2];
2319 GLfloat Constants
[8][4];
2320 GLbitfield LocalConstDef
; /**< Indicates which constants have been set */
2321 GLubyte numArithInstr
[2];
2322 GLubyte regsAssigned
[2];
2323 GLubyte NumPasses
; /**< 1 or 2 */
2325 * Current compile stage: 0 setup pass1, 1 arith pass1,
2326 * 2 setup pass2, 3 arith pass2.
2329 GLubyte last_optype
;
2330 GLboolean interpinp1
;
2333 * Array of 2 bit values for each tex unit to remember whether
2334 * STR or STQ swizzle was used
2337 struct gl_program
*Program
;
2341 * Context state for GL_ATI_fragment_shader
2343 struct gl_ati_fragment_shader_state
2346 GLboolean Compiling
;
2347 GLfloat GlobalConstants
[8][4];
2348 struct ati_fragment_shader
*Current
;
2352 * Shader subroutine function definition
2354 struct gl_subroutine_function
2358 int num_compat_types
;
2359 const struct glsl_type
**types
;
2363 * Shader information needed by both gl_shader and gl_linked shader.
2365 struct gl_shader_info
2368 * Tessellation Control shader state from layout qualifiers.
2372 * 0 - vertices not declared in shader, or
2373 * 1 .. GL_MAX_PATCH_VERTICES
2379 * Tessellation Evaluation shader state from layout qualifiers.
2383 * GL_TRIANGLES, GL_QUADS, GL_ISOLINES or PRIM_UNKNOWN if it's not set
2386 GLenum16 PrimitiveMode
;
2388 enum gl_tess_spacing Spacing
;
2391 * GL_CW, GL_CCW, or 0 if it's not set in this shader.
2393 GLenum16 VertexOrder
;
2395 * 1, 0, or -1 if it's not set in this shader.
2401 * Geometry shader state from GLSL 1.50 layout qualifiers.
2406 * 0 - Invocations count not declared in shader, or
2407 * 1 .. MAX_GEOMETRY_SHADER_INVOCATIONS
2411 * GL_POINTS, GL_LINES, GL_LINES_ADJACENCY, GL_TRIANGLES, or
2412 * GL_TRIANGLES_ADJACENCY, or PRIM_UNKNOWN if it's not set in this
2417 * GL_POINTS, GL_LINE_STRIP or GL_TRIANGLE_STRIP, or PRIM_UNKNOWN if
2418 * it's not set in this shader.
2420 GLenum16 OutputType
;
2424 * Compute shader state from ARB_compute_shader and
2425 * ARB_compute_variable_group_size layout qualifiers.
2429 * Size specified using local_size_{x,y,z}, or all 0's to indicate that
2430 * it's not set in this shader.
2432 unsigned LocalSize
[3];
2435 * Whether a variable work group size has been specified as defined by
2436 * ARB_compute_variable_group_size.
2438 bool LocalSizeVariable
;
2443 * A linked GLSL shader object.
2445 struct gl_linked_shader
2447 gl_shader_stage Stage
;
2450 unsigned SourceChecksum
;
2453 struct gl_program
*Program
; /**< Post-compile assembly code */
2456 * \name Sampler tracking
2458 * \note Each of these fields is only set post-linking.
2461 GLbitfield shadow_samplers
; /**< Samplers used for shadow sampling. */
2465 * Number of default uniform block components used by this shader.
2467 * This field is only set post-linking.
2469 unsigned num_uniform_components
;
2472 * Number of combined uniform components used by this shader.
2474 * This field is only set post-linking. It is the sum of the uniform block
2475 * sizes divided by sizeof(float), and num_uniform_compoennts.
2477 unsigned num_combined_uniform_components
;
2479 struct exec_list
*ir
;
2480 struct exec_list
*packed_varyings
;
2481 struct exec_list
*fragdata_arrays
;
2482 struct glsl_symbol_table
*symbols
;
2485 * ARB_gl_spirv related data.
2487 * This is actually a reference to the gl_shader::spirv_data, which
2488 * stores information that is also needed during linking.
2490 struct gl_shader_spirv_data
*spirv_data
;
2495 * Compile status enum. COMPILE_SKIPPED is used to indicate the compile
2496 * was skipped due to the shader matching one that's been seen before by
2497 * the on-disk cache.
2499 enum gl_compile_status
2501 COMPILE_FAILURE
= 0,
2508 * A GLSL shader object.
2512 /** GL_FRAGMENT_SHADER || GL_VERTEX_SHADER || GL_GEOMETRY_SHADER_ARB ||
2513 * GL_TESS_CONTROL_SHADER || GL_TESS_EVALUATION_SHADER.
2514 * Must be the first field.
2517 gl_shader_stage Stage
;
2518 GLuint Name
; /**< AKA the handle */
2519 GLint RefCount
; /**< Reference count */
2520 GLchar
*Label
; /**< GL_KHR_debug */
2521 unsigned char sha1
[20]; /**< SHA1 hash of pre-processed source */
2522 GLboolean DeletePending
;
2523 bool IsES
; /**< True if this shader uses GLSL ES */
2525 enum gl_compile_status CompileStatus
;
2528 unsigned SourceChecksum
; /**< for debug/logging purposes */
2530 const GLchar
*Source
; /**< Source code string */
2532 const GLchar
*FallbackSource
; /**< Fallback string used by on-disk cache*/
2536 unsigned Version
; /**< GLSL version used for linking */
2539 * A bitmask of gl_advanced_blend_mode values
2541 GLbitfield BlendSupport
;
2543 struct exec_list
*ir
;
2544 struct glsl_symbol_table
*symbols
;
2547 * Whether early fragment tests are enabled as defined by
2548 * ARB_shader_image_load_store.
2550 bool EarlyFragmentTests
;
2552 bool ARB_fragment_coord_conventions_enable
;
2554 bool redeclares_gl_fragcoord
;
2555 bool uses_gl_fragcoord
;
2557 bool PostDepthCoverage
;
2561 * Fragment shader state from GLSL 1.50 layout qualifiers.
2563 bool origin_upper_left
;
2564 bool pixel_center_integer
;
2567 * Whether bindless_sampler/bindless_image, and respectively
2568 * bound_sampler/bound_image are declared at global scope as defined by
2569 * ARB_bindless_texture.
2571 bool bindless_sampler
;
2572 bool bindless_image
;
2576 /** Global xfb_stride out qualifier if any */
2577 GLuint TransformFeedbackBufferStride
[MAX_FEEDBACK_BUFFERS
];
2579 struct gl_shader_info info
;
2581 /* ARB_gl_spirv related data */
2582 struct gl_shader_spirv_data
*spirv_data
;
2586 struct gl_uniform_buffer_variable
2591 * Name of the uniform as seen by glGetUniformIndices.
2593 * glGetUniformIndices requires that the block instance index \b not be
2594 * present in the name of queried uniforms.
2597 * \c gl_uniform_buffer_variable::IndexName and
2598 * \c gl_uniform_buffer_variable::Name may point to identical storage.
2602 const struct glsl_type
*Type
;
2603 unsigned int Offset
;
2608 struct gl_uniform_block
2610 /** Declared name of the uniform block */
2613 /** Array of supplemental information about UBO ir_variables. */
2614 struct gl_uniform_buffer_variable
*Uniforms
;
2618 * Index (GL_UNIFORM_BLOCK_BINDING) into ctx->UniformBufferBindings[] to use
2619 * with glBindBufferBase to bind a buffer object to this uniform block.
2624 * Minimum size (in bytes) of a buffer object to back this uniform buffer
2625 * (GL_UNIFORM_BLOCK_DATA_SIZE).
2627 GLuint UniformBufferSize
;
2629 /** Stages that reference this block */
2633 * Linearized array index for uniform block instance arrays
2635 * Given a uniform block instance array declared with size
2636 * blk[s_0][s_1]..[s_m], the block referenced by blk[i_0][i_1]..[i_m] will
2637 * have the linearized array index
2640 * i_m + ∑ i_j * ∏ s_k
2643 * For a uniform block instance that is not an array, this is always 0.
2645 uint8_t linearized_array_index
;
2648 * Layout specified in the shader
2650 * This isn't accessible through the API, but it is used while
2651 * cross-validating uniform blocks.
2653 enum glsl_interface_packing _Packing
;
2654 GLboolean _RowMajor
;
2658 * Structure that represents a reference to an atomic buffer from some
2661 struct gl_active_atomic_buffer
2663 /** Uniform indices of the atomic counters declared within it. */
2667 /** Binding point index associated with it. */
2670 /** Minimum reasonable size it is expected to have. */
2673 /** Shader stages making use of it. */
2674 GLboolean StageReferences
[MESA_SHADER_STAGES
];
2678 * Data container for shader queries. This holds only the minimal
2679 * amount of required information for resource queries to work.
2681 struct gl_shader_variable
2684 * Declared type of the variable
2686 const struct glsl_type
*type
;
2689 * If the variable is in an interface block, this is the type of the block.
2691 const struct glsl_type
*interface_type
;
2694 * For variables inside structs (possibly recursively), this is the
2695 * outermost struct type.
2697 const struct glsl_type
*outermost_struct_type
;
2700 * Declared name of the variable
2705 * Storage location of the base of this variable
2707 * The precise meaning of this field depends on the nature of the variable.
2709 * - Vertex shader input: one of the values from \c gl_vert_attrib.
2710 * - Vertex shader output: one of the values from \c gl_varying_slot.
2711 * - Geometry shader input: one of the values from \c gl_varying_slot.
2712 * - Geometry shader output: one of the values from \c gl_varying_slot.
2713 * - Fragment shader input: one of the values from \c gl_varying_slot.
2714 * - Fragment shader output: one of the values from \c gl_frag_result.
2715 * - Uniforms: Per-stage uniform slot number for default uniform block.
2716 * - Uniforms: Index within the uniform block definition for UBO members.
2717 * - Non-UBO Uniforms: explicit location until linking then reused to
2718 * store uniform slot number.
2719 * - Other: This field is not currently used.
2721 * If the variable is a uniform, shader input, or shader output, and the
2722 * slot has not been assigned, the value will be -1.
2727 * Specifies the first component the variable is stored in as per
2728 * ARB_enhanced_layouts.
2730 unsigned component
:2;
2733 * Output index for dual source blending.
2736 * The GLSL spec only allows the values 0 or 1 for the index in \b dual
2742 * Specifies whether a shader input/output is per-patch in tessellation
2748 * Storage class of the variable.
2750 * \sa (n)ir_variable_mode
2755 * Interpolation mode for shader inputs / outputs
2757 * \sa glsl_interp_mode
2759 unsigned interpolation
:2;
2762 * Was the location explicitly set in the shader?
2764 * If the location is explicitly set in the shader, it \b cannot be changed
2765 * by the linker or by the API (e.g., calls to \c glBindAttribLocation have
2768 unsigned explicit_location
:1;
2771 * Precision qualifier.
2773 unsigned precision
:2;
2777 * Active resource in a gl_shader_program
2779 struct gl_program_resource
2781 GLenum16 Type
; /** Program interface type. */
2782 const void *Data
; /** Pointer to resource associated data structure. */
2783 uint8_t StageReferences
; /** Bitmask of shader stage references. */
2787 * Link status enum. LINKING_SKIPPED is used to indicate linking
2788 * was skipped due to the shader being loaded from the on-disk cache.
2792 LINKING_FAILURE
= 0,
2798 * A data structure to be shared by gl_shader_program and gl_program.
2800 struct gl_shader_program_data
2802 GLint RefCount
; /**< Reference count */
2804 /** SHA1 hash of linked shader program */
2805 unsigned char sha1
[20];
2807 unsigned NumUniformStorage
;
2808 unsigned NumHiddenUniforms
;
2809 struct gl_uniform_storage
*UniformStorage
;
2811 unsigned NumUniformBlocks
;
2812 unsigned NumShaderStorageBlocks
;
2814 struct gl_uniform_block
*UniformBlocks
;
2815 struct gl_uniform_block
*ShaderStorageBlocks
;
2817 struct gl_active_atomic_buffer
*AtomicBuffers
;
2818 unsigned NumAtomicBuffers
;
2820 /* Shader cache variables used during restore */
2821 unsigned NumUniformDataSlots
;
2822 union gl_constant_value
*UniformDataSlots
;
2824 /* Used to hold initial uniform values for program binary restores.
2826 * From the ARB_get_program_binary spec:
2828 * "A successful call to ProgramBinary will reset all uniform
2829 * variables to their initial values. The initial value is either
2830 * the value of the variable's initializer as specified in the
2831 * original shader source, or 0 if no initializer was present.
2833 union gl_constant_value
*UniformDataDefaults
;
2835 GLboolean Validated
;
2837 /** List of all active resources after linking. */
2838 struct gl_program_resource
*ProgramResourceList
;
2839 unsigned NumProgramResourceList
;
2841 enum gl_link_status LinkStatus
; /**< GL_LINK_STATUS */
2844 unsigned Version
; /**< GLSL version used for linking */
2846 /* Mask of stages this program was linked against */
2847 unsigned linked_stages
;
2851 * A GLSL program object.
2852 * Basically a linked collection of vertex and fragment shaders.
2854 struct gl_shader_program
2856 GLenum16 Type
; /**< Always GL_SHADER_PROGRAM (internal token) */
2857 GLuint Name
; /**< aka handle or ID */
2858 GLchar
*Label
; /**< GL_KHR_debug */
2859 GLint RefCount
; /**< Reference count */
2860 GLboolean DeletePending
;
2863 * Is the application intending to glGetProgramBinary this program?
2865 GLboolean BinaryRetreivableHint
;
2868 * Indicates whether program can be bound for individual pipeline stages
2869 * using UseProgramStages after it is next linked.
2871 GLboolean SeparateShader
;
2873 GLuint NumShaders
; /**< number of attached shaders */
2874 struct gl_shader
**Shaders
; /**< List of attached the shaders */
2877 * User-defined attribute bindings
2879 * These are set via \c glBindAttribLocation and are used to direct the
2880 * GLSL linker. These are \b not the values used in the compiled shader,
2881 * and they are \b not the values returned by \c glGetAttribLocation.
2883 struct string_to_uint_map
*AttributeBindings
;
2886 * User-defined fragment data bindings
2888 * These are set via \c glBindFragDataLocation and are used to direct the
2889 * GLSL linker. These are \b not the values used in the compiled shader,
2890 * and they are \b not the values returned by \c glGetFragDataLocation.
2892 struct string_to_uint_map
*FragDataBindings
;
2893 struct string_to_uint_map
*FragDataIndexBindings
;
2896 * Transform feedback varyings last specified by
2897 * glTransformFeedbackVaryings().
2899 * For the current set of transform feedback varyings used for transform
2900 * feedback output, see LinkedTransformFeedback.
2903 GLenum16 BufferMode
;
2904 /** Global xfb_stride out qualifier if any */
2905 GLuint BufferStride
[MAX_FEEDBACK_BUFFERS
];
2907 GLchar
**VaryingNames
; /**< Array [NumVarying] of char * */
2908 } TransformFeedback
;
2910 struct gl_program
*last_vert_prog
;
2912 /** Post-link gl_FragDepth layout for ARB_conservative_depth. */
2913 enum gl_frag_depth_layout FragDepthLayout
;
2916 * Geometry shader state - copied into gl_program by
2917 * _mesa_copy_linked_program_data().
2922 bool UsesEndPrimitive
;
2927 * Compute shader state - copied into gl_program by
2928 * _mesa_copy_linked_program_data().
2932 * Size of shared variables accessed by the compute shader.
2934 unsigned SharedSize
;
2937 /** Data shared by gl_program and gl_shader_program */
2938 struct gl_shader_program_data
*data
;
2941 * Mapping from GL uniform locations returned by \c glUniformLocation to
2942 * UniformStorage entries. Arrays will have multiple contiguous slots
2943 * in the UniformRemapTable, all pointing to the same UniformStorage entry.
2945 unsigned NumUniformRemapTable
;
2946 struct gl_uniform_storage
**UniformRemapTable
;
2949 * Sometimes there are empty slots left over in UniformRemapTable after we
2950 * allocate slots to explicit locations. This list stores the blocks of
2951 * continuous empty slots inside UniformRemapTable.
2953 struct exec_list EmptyUniformLocations
;
2956 * Total number of explicit uniform location including inactive uniforms.
2958 unsigned NumExplicitUniformLocations
;
2961 * Map of active uniform names to locations
2963 * Maps any active uniform that is not an array element to a location.
2964 * Each active uniform, including individual structure members will appear
2965 * in this map. This roughly corresponds to the set of names that would be
2966 * enumerated by \c glGetActiveUniform.
2968 struct string_to_uint_map
*UniformHash
;
2970 GLboolean SamplersValidated
; /**< Samplers validated against texture units? */
2972 bool IsES
; /**< True if this program uses GLSL ES */
2975 * Per-stage shaders resulting from the first stage of linking.
2977 * Set of linked shaders for this program. The array is accessed using the
2978 * \c MESA_SHADER_* defines. Entries for non-existent stages will be
2981 struct gl_linked_shader
*_LinkedShaders
[MESA_SHADER_STAGES
];
2984 * True if any of the fragment shaders attached to this program use:
2985 * #extension ARB_fragment_coord_conventions: enable
2987 GLboolean ARB_fragment_coord_conventions_enable
;
2991 #define GLSL_DUMP 0x1 /**< Dump shaders to stdout */
2992 #define GLSL_LOG 0x2 /**< Write shaders to files */
2993 #define GLSL_UNIFORMS 0x4 /**< Print glUniform calls */
2994 #define GLSL_NOP_VERT 0x8 /**< Force no-op vertex shaders */
2995 #define GLSL_NOP_FRAG 0x10 /**< Force no-op fragment shaders */
2996 #define GLSL_USE_PROG 0x20 /**< Log glUseProgram calls */
2997 #define GLSL_REPORT_ERRORS 0x40 /**< Print compilation errors */
2998 #define GLSL_DUMP_ON_ERROR 0x80 /**< Dump shaders to stderr on compile error */
2999 #define GLSL_CACHE_INFO 0x100 /**< Print debug information about shader cache */
3000 #define GLSL_CACHE_FALLBACK 0x200 /**< Force shader cache fallback paths */
3004 * Context state for GLSL vertex/fragment shaders.
3005 * Extended to support pipeline object
3007 struct gl_pipeline_object
3009 /** Name of the pipeline object as received from glGenProgramPipelines.
3010 * It would be 0 for shaders without separate shader objects.
3016 GLchar
*Label
; /**< GL_KHR_debug */
3019 * Programs used for rendering
3021 * There is a separate program set for each shader stage.
3023 struct gl_program
*CurrentProgram
[MESA_SHADER_STAGES
];
3025 struct gl_shader_program
*ReferencedPrograms
[MESA_SHADER_STAGES
];
3028 * Program used by glUniform calls.
3030 * Explicitly set by \c glUseProgram and \c glActiveProgramEXT.
3032 struct gl_shader_program
*ActiveProgram
;
3034 GLbitfield Flags
; /**< Mask of GLSL_x flags */
3035 GLboolean EverBound
; /**< Has the pipeline object been created */
3036 GLboolean Validated
; /**< Pipeline Validation status */
3042 * Context state for GLSL pipeline shaders.
3044 struct gl_pipeline_shader_state
3046 /** Currently bound pipeline object. See _mesa_BindProgramPipeline() */
3047 struct gl_pipeline_object
*Current
;
3049 /** Default Object to ensure that _Shader is never NULL */
3050 struct gl_pipeline_object
*Default
;
3052 /** Pipeline objects */
3053 struct _mesa_HashTable
*Objects
;
3057 * Compiler options for a single GLSL shaders type
3059 struct gl_shader_compiler_options
3061 /** Driver-selectable options: */
3062 GLboolean EmitNoLoops
;
3063 GLboolean EmitNoCont
; /**< Emit CONT opcode? */
3064 GLboolean EmitNoMainReturn
; /**< Emit CONT/RET opcodes? */
3065 GLboolean EmitNoPow
; /**< Emit POW opcodes? */
3066 GLboolean EmitNoSat
; /**< Emit SAT opcodes? */
3067 GLboolean LowerCombinedClipCullDistance
; /** Lower gl_ClipDistance and
3068 * gl_CullDistance together from
3069 * float[8] to vec4[2]
3073 * \name Forms of indirect addressing the driver cannot do.
3076 GLboolean EmitNoIndirectInput
; /**< No indirect addressing of inputs */
3077 GLboolean EmitNoIndirectOutput
; /**< No indirect addressing of outputs */
3078 GLboolean EmitNoIndirectTemp
; /**< No indirect addressing of temps */
3079 GLboolean EmitNoIndirectUniform
; /**< No indirect addressing of constants */
3080 GLboolean EmitNoIndirectSampler
; /**< No indirect addressing of samplers */
3083 GLuint MaxIfDepth
; /**< Maximum nested IF blocks */
3084 GLuint MaxUnrollIterations
;
3087 * Optimize code for array of structures backends.
3089 * This is a proxy for:
3090 * - preferring DP4 instructions (rather than MUL/MAD) for
3091 * matrix * vector operations, such as position transformation.
3093 GLboolean OptimizeForAOS
;
3095 /** Lower UBO and SSBO access to intrinsics. */
3096 GLboolean LowerBufferInterfaceBlocks
;
3098 /** Clamp UBO and SSBO block indices so they don't go out-of-bounds. */
3099 GLboolean ClampBlockIndicesToArrayBounds
;
3101 const struct nir_shader_compiler_options
*NirOptions
;
3106 * Occlusion/timer query object.
3108 struct gl_query_object
3110 GLenum16 Target
; /**< The query target, when active */
3111 GLuint Id
; /**< hash table ID/name */
3112 GLchar
*Label
; /**< GL_KHR_debug */
3113 GLuint64EXT Result
; /**< the counter */
3114 GLboolean Active
; /**< inside Begin/EndQuery */
3115 GLboolean Ready
; /**< result is ready? */
3116 GLboolean EverBound
;/**< has query object ever been bound */
3117 GLuint Stream
; /**< The stream */
3122 * Context state for query objects.
3124 struct gl_query_state
3126 struct _mesa_HashTable
*QueryObjects
;
3127 struct gl_query_object
*CurrentOcclusionObject
; /* GL_ARB_occlusion_query */
3128 struct gl_query_object
*CurrentTimerObject
; /* GL_EXT_timer_query */
3130 /** GL_NV_conditional_render */
3131 struct gl_query_object
*CondRenderQuery
;
3133 /** GL_EXT_transform_feedback */
3134 struct gl_query_object
*PrimitivesGenerated
[MAX_VERTEX_STREAMS
];
3135 struct gl_query_object
*PrimitivesWritten
[MAX_VERTEX_STREAMS
];
3137 /** GL_ARB_transform_feedback_overflow_query */
3138 struct gl_query_object
*TransformFeedbackOverflow
[MAX_VERTEX_STREAMS
];
3139 struct gl_query_object
*TransformFeedbackOverflowAny
;
3141 /** GL_ARB_timer_query */
3142 struct gl_query_object
*TimeElapsed
;
3144 /** GL_ARB_pipeline_statistics_query */
3145 struct gl_query_object
*pipeline_stats
[MAX_PIPELINE_STATISTICS
];
3147 GLenum16 CondRenderMode
;
3151 /** Sync object state */
3152 struct gl_sync_object
3154 GLuint Name
; /**< Fence name */
3155 GLint RefCount
; /**< Reference count */
3156 GLchar
*Label
; /**< GL_KHR_debug */
3157 GLboolean DeletePending
; /**< Object was deleted while there were still
3158 * live references (e.g., sync not yet finished)
3160 GLenum16 SyncCondition
;
3161 GLbitfield Flags
; /**< Flags passed to glFenceSync */
3162 GLuint StatusFlag
:1; /**< Has the sync object been signaled? */
3167 * State which can be shared by multiple contexts:
3169 struct gl_shared_state
3171 simple_mtx_t Mutex
; /**< for thread safety */
3172 GLint RefCount
; /**< Reference count */
3173 struct _mesa_HashTable
*DisplayList
; /**< Display lists hash table */
3174 struct _mesa_HashTable
*BitmapAtlas
; /**< For optimized glBitmap text */
3175 struct _mesa_HashTable
*TexObjects
; /**< Texture objects hash table */
3177 /** Default texture objects (shared by all texture units) */
3178 struct gl_texture_object
*DefaultTex
[NUM_TEXTURE_TARGETS
];
3180 /** Fallback texture used when a bound texture is incomplete */
3181 struct gl_texture_object
*FallbackTex
[NUM_TEXTURE_TARGETS
];
3184 * \name Thread safety and statechange notification for texture
3187 * \todo Improve the granularity of locking.
3190 mtx_t TexMutex
; /**< texobj thread safety */
3191 GLuint TextureStateStamp
; /**< state notification for shared tex */
3194 /** Default buffer object for vertex arrays that aren't in VBOs */
3195 struct gl_buffer_object
*NullBufferObj
;
3198 * \name Vertex/geometry/fragment programs
3201 struct _mesa_HashTable
*Programs
; /**< All vertex/fragment programs */
3202 struct gl_program
*DefaultVertexProgram
;
3203 struct gl_program
*DefaultFragmentProgram
;
3206 /* GL_ATI_fragment_shader */
3207 struct _mesa_HashTable
*ATIShaders
;
3208 struct ati_fragment_shader
*DefaultFragmentShader
;
3210 struct _mesa_HashTable
*BufferObjects
;
3212 /** Table of both gl_shader and gl_shader_program objects */
3213 struct _mesa_HashTable
*ShaderObjects
;
3215 /* GL_EXT_framebuffer_object */
3216 struct _mesa_HashTable
*RenderBuffers
;
3217 struct _mesa_HashTable
*FrameBuffers
;
3220 struct set
*SyncObjects
;
3222 /** GL_ARB_sampler_objects */
3223 struct _mesa_HashTable
*SamplerObjects
;
3225 /* GL_ARB_bindless_texture */
3226 struct hash_table_u64
*TextureHandles
;
3227 struct hash_table_u64
*ImageHandles
;
3228 mtx_t HandlesMutex
; /**< For texture/image handles safety */
3231 * Some context in this share group was affected by a GPU reset
3233 * On the next call to \c glGetGraphicsResetStatus, contexts that have not
3234 * been affected by a GPU reset must also return
3235 * \c GL_INNOCENT_CONTEXT_RESET_ARB.
3237 * Once this field becomes true, it is never reset to false.
3239 bool ShareGroupReset
;
3241 /** EXT_external_objects */
3242 struct _mesa_HashTable
*MemoryObjects
;
3244 /** EXT_semaphore */
3245 struct _mesa_HashTable
*SemaphoreObjects
;
3248 * Some context in this share group was affected by a disjoint
3249 * operation. This operation can be anything that has effects on
3250 * values of timer queries in such manner that they become invalid for
3251 * performance metrics. As example gpu reset, counter overflow or gpu
3252 * frequency changes.
3254 bool DisjointOperation
;
3260 * Renderbuffers represent drawing surfaces such as color, depth and/or
3261 * stencil. A framebuffer object has a set of renderbuffers.
3262 * Drivers will typically derive subclasses of this type.
3264 struct gl_renderbuffer
3266 simple_mtx_t Mutex
; /**< for thread safety */
3267 GLuint ClassID
; /**< Useful for drivers */
3269 GLchar
*Label
; /**< GL_KHR_debug */
3271 GLuint Width
, Height
;
3273 GLboolean Purgeable
; /**< Is the buffer purgeable under memory pressure? */
3274 GLboolean AttachedAnytime
; /**< TRUE if it was attached to a framebuffer */
3276 * True for renderbuffers that wrap textures, giving the driver a chance to
3277 * flush render caches through the FinishRenderTexture hook.
3279 * Drivers may also set this on renderbuffers other than those generated by
3280 * glFramebufferTexture(), though it means FinishRenderTexture() would be
3281 * called without a rb->TexImage.
3283 GLboolean NeedsFinishRenderTexture
;
3284 GLubyte NumSamples
; /**< zero means not multisampled */
3285 GLenum16 InternalFormat
; /**< The user-specified format */
3286 GLenum16 _BaseFormat
; /**< Either GL_RGB, GL_RGBA, GL_DEPTH_COMPONENT or
3287 GL_STENCIL_INDEX. */
3288 mesa_format Format
; /**< The actual renderbuffer memory format */
3290 * Pointer to the texture image if this renderbuffer wraps a texture,
3293 * Note that the reference on the gl_texture_object containing this
3294 * TexImage is held by the gl_renderbuffer_attachment.
3296 struct gl_texture_image
*TexImage
;
3298 /** Delete this renderbuffer */
3299 void (*Delete
)(struct gl_context
*ctx
, struct gl_renderbuffer
*rb
);
3301 /** Allocate new storage for this renderbuffer */
3302 GLboolean (*AllocStorage
)(struct gl_context
*ctx
,
3303 struct gl_renderbuffer
*rb
,
3304 GLenum internalFormat
,
3305 GLuint width
, GLuint height
);
3310 * A renderbuffer attachment points to either a texture object (and specifies
3311 * a mipmap level, cube face or 3D texture slice) or points to a renderbuffer.
3313 struct gl_renderbuffer_attachment
3315 GLenum16 Type
; /**< \c GL_NONE or \c GL_TEXTURE or \c GL_RENDERBUFFER_EXT */
3319 * If \c Type is \c GL_RENDERBUFFER_EXT, this stores a pointer to the
3320 * application supplied renderbuffer object.
3322 struct gl_renderbuffer
*Renderbuffer
;
3325 * If \c Type is \c GL_TEXTURE, this stores a pointer to the application
3326 * supplied texture object.
3328 struct gl_texture_object
*Texture
;
3329 GLuint TextureLevel
; /**< Attached mipmap level. */
3330 GLuint CubeMapFace
; /**< 0 .. 5, for cube map textures. */
3331 GLuint Zoffset
; /**< Slice for 3D textures, or layer for both 1D
3332 * and 2D array textures */
3338 * A framebuffer is a collection of renderbuffers (color, depth, stencil, etc).
3339 * In C++ terms, think of this as a base class from which device drivers
3340 * will make derived classes.
3342 struct gl_framebuffer
3344 simple_mtx_t Mutex
; /**< for thread safety */
3346 * If zero, this is a window system framebuffer. If non-zero, this
3347 * is a FBO framebuffer; note that for some devices (i.e. those with
3348 * a natural pixel coordinate system for FBOs that differs from the
3349 * OpenGL/Mesa coordinate system), this means that the viewport,
3350 * polygon face orientation, and polygon stipple will have to be inverted.
3355 GLchar
*Label
; /**< GL_KHR_debug */
3357 GLboolean DeletePending
;
3360 * The framebuffer's visual. Immutable if this is a window system buffer.
3361 * Computed from attachments if user-made FBO.
3363 struct gl_config Visual
;
3366 * Size of frame buffer in pixels. If there are no attachments, then both
3369 GLuint Width
, Height
;
3372 * In the case that the framebuffer has no attachment (i.e.
3373 * GL_ARB_framebuffer_no_attachments) then the geometry of
3374 * the framebuffer is specified by the default values.
3377 GLuint Width
, Height
, Layers
, NumSamples
;
3378 GLboolean FixedSampleLocations
;
3379 /* Derived from NumSamples by the driver so that it can choose a valid
3380 * value for the hardware.
3385 /** \name Drawing bounds (Intersection of buffer size and scissor box)
3386 * The drawing region is given by [_Xmin, _Xmax) x [_Ymin, _Ymax),
3387 * (inclusive for _Xmin and _Ymin while exclusive for _Xmax and _Ymax)
3394 /** \name Derived Z buffer stuff */
3396 GLuint _DepthMax
; /**< Max depth buffer value */
3397 GLfloat _DepthMaxF
; /**< Float max depth buffer value */
3398 GLfloat _MRD
; /**< minimum resolvable difference in Z values */
3401 /** One of the GL_FRAMEBUFFER_(IN)COMPLETE_* tokens */
3404 /** Whether one of Attachment has Type != GL_NONE
3405 * NOTE: the values for Width and Height are set to 0 in case of having
3406 * no attachments, a backend driver supporting the extension
3407 * GL_ARB_framebuffer_no_attachments must check for the flag _HasAttachments
3408 * and if GL_FALSE, must then use the values in DefaultGeometry to initialize
3409 * its viewport, scissor and so on (in particular _Xmin, _Xmax, _Ymin and
3410 * _Ymax do NOT take into account _HasAttachments being false). To get the
3411 * geometry of the framebuffer, the helper functions
3412 * _mesa_geometric_width(),
3413 * _mesa_geometric_height(),
3414 * _mesa_geometric_samples() and
3415 * _mesa_geometric_layers()
3416 * are available that check _HasAttachments.
3418 bool _HasAttachments
;
3420 GLbitfield _IntegerBuffers
; /**< Which color buffers are integer valued */
3422 /* ARB_color_buffer_float */
3423 GLboolean _AllColorBuffersFixedPoint
; /* no integer, no float */
3424 GLboolean _HasSNormOrFloatColorBuffer
;
3427 * The maximum number of layers in the framebuffer, or 0 if the framebuffer
3428 * is not layered. For cube maps and cube map arrays, each cube face
3429 * counts as a layer. As the case for Width, Height a backend driver
3430 * supporting GL_ARB_framebuffer_no_attachments must use DefaultGeometry
3431 * in the case that _HasAttachments is false
3433 GLuint MaxNumLayers
;
3435 /** Array of all renderbuffer attachments, indexed by BUFFER_* tokens. */
3436 struct gl_renderbuffer_attachment Attachment
[BUFFER_COUNT
];
3438 /* In unextended OpenGL these vars are part of the GL_COLOR_BUFFER
3439 * attribute group and GL_PIXEL attribute group, respectively.
3441 GLenum16 ColorDrawBuffer
[MAX_DRAW_BUFFERS
];
3442 GLenum16 ColorReadBuffer
;
3444 /** Computed from ColorDraw/ReadBuffer above */
3445 GLuint _NumColorDrawBuffers
;
3446 gl_buffer_index _ColorDrawBufferIndexes
[MAX_DRAW_BUFFERS
];
3447 gl_buffer_index _ColorReadBufferIndex
;
3448 struct gl_renderbuffer
*_ColorDrawBuffers
[MAX_DRAW_BUFFERS
];
3449 struct gl_renderbuffer
*_ColorReadBuffer
;
3451 /** Delete this framebuffer */
3452 void (*Delete
)(struct gl_framebuffer
*fb
);
3457 * Precision info for shader datatypes. See glGetShaderPrecisionFormat().
3461 GLushort RangeMin
; /**< min value exponent */
3462 GLushort RangeMax
; /**< max value exponent */
3463 GLushort Precision
; /**< number of mantissa bits */
3468 * Limits for vertex, geometry and fragment programs/shaders.
3470 struct gl_program_constants
3472 /* logical limits */
3473 GLuint MaxInstructions
;
3474 GLuint MaxAluInstructions
;
3475 GLuint MaxTexInstructions
;
3476 GLuint MaxTexIndirections
;
3479 GLuint MaxAddressRegs
;
3480 GLuint MaxAddressOffset
; /**< [-MaxAddressOffset, MaxAddressOffset-1] */
3481 GLuint MaxParameters
;
3482 GLuint MaxLocalParams
;
3483 GLuint MaxEnvParams
;
3484 /* native/hardware limits */
3485 GLuint MaxNativeInstructions
;
3486 GLuint MaxNativeAluInstructions
;
3487 GLuint MaxNativeTexInstructions
;
3488 GLuint MaxNativeTexIndirections
;
3489 GLuint MaxNativeAttribs
;
3490 GLuint MaxNativeTemps
;
3491 GLuint MaxNativeAddressRegs
;
3492 GLuint MaxNativeParameters
;
3494 GLuint MaxUniformComponents
; /**< Usually == MaxParameters * 4 */
3497 * \name Per-stage input / output limits
3499 * Previous to OpenGL 3.2, the intrastage data limits were advertised with
3500 * a single value: GL_MAX_VARYING_COMPONENTS (GL_MAX_VARYING_VECTORS in
3501 * ES). This is stored as \c gl_constants::MaxVarying.
3503 * Starting with OpenGL 3.2, the limits are advertised with per-stage
3504 * variables. Each stage as a certain number of outputs that it can feed
3505 * to the next stage and a certain number inputs that it can consume from
3506 * the previous stage.
3508 * Vertex shader inputs do not participate this in this accounting.
3509 * These are tracked exclusively by \c gl_program_constants::MaxAttribs.
3511 * Fragment shader outputs do not participate this in this accounting.
3512 * These are tracked exclusively by \c gl_constants::MaxDrawBuffers.
3515 GLuint MaxInputComponents
;
3516 GLuint MaxOutputComponents
;
3519 /* ES 2.0 and GL_ARB_ES2_compatibility */
3520 struct gl_precision LowFloat
, MediumFloat
, HighFloat
;
3521 struct gl_precision LowInt
, MediumInt
, HighInt
;
3522 /* GL_ARB_uniform_buffer_object */
3523 GLuint MaxUniformBlocks
;
3524 GLuint MaxCombinedUniformComponents
;
3525 GLuint MaxTextureImageUnits
;
3527 /* GL_ARB_shader_atomic_counters */
3528 GLuint MaxAtomicBuffers
;
3529 GLuint MaxAtomicCounters
;
3531 /* GL_ARB_shader_image_load_store */
3532 GLuint MaxImageUniforms
;
3534 /* GL_ARB_shader_storage_buffer_object */
3535 GLuint MaxShaderStorageBlocks
;
3539 * Constants which may be overridden by device driver during context creation
3540 * but are never changed after that.
3544 GLuint MaxTextureMbytes
; /**< Max memory per image, in MB */
3545 GLuint MaxTextureLevels
; /**< Max mipmap levels. */
3546 GLuint Max3DTextureLevels
; /**< Max mipmap levels for 3D textures */
3547 GLuint MaxCubeTextureLevels
; /**< Max mipmap levels for cube textures */
3548 GLuint MaxArrayTextureLayers
; /**< Max layers in array textures */
3549 GLuint MaxTextureRectSize
; /**< Max rectangle texture size, in pixes */
3550 GLuint MaxTextureCoordUnits
;
3551 GLuint MaxCombinedTextureImageUnits
;
3552 GLuint MaxTextureUnits
; /**< = MIN(CoordUnits, FragmentProgram.ImageUnits) */
3553 GLfloat MaxTextureMaxAnisotropy
; /**< GL_EXT_texture_filter_anisotropic */
3554 GLfloat MaxTextureLodBias
; /**< GL_EXT_texture_lod_bias */
3555 GLuint MaxTextureBufferSize
; /**< GL_ARB_texture_buffer_object */
3557 GLuint TextureBufferOffsetAlignment
; /**< GL_ARB_texture_buffer_range */
3559 GLuint MaxArrayLockSize
;
3563 GLfloat MinPointSize
, MaxPointSize
; /**< aliased */
3564 GLfloat MinPointSizeAA
, MaxPointSizeAA
; /**< antialiased */
3565 GLfloat PointSizeGranularity
;
3566 GLfloat MinLineWidth
, MaxLineWidth
; /**< aliased */
3567 GLfloat MinLineWidthAA
, MaxLineWidthAA
; /**< antialiased */
3568 GLfloat LineWidthGranularity
;
3570 GLuint MaxClipPlanes
;
3572 GLfloat MaxShininess
; /**< GL_NV_light_max_exponent */
3573 GLfloat MaxSpotExponent
; /**< GL_NV_light_max_exponent */
3575 GLuint MaxViewportWidth
, MaxViewportHeight
;
3576 GLuint MaxViewports
; /**< GL_ARB_viewport_array */
3577 GLuint ViewportSubpixelBits
; /**< GL_ARB_viewport_array */
3581 } ViewportBounds
; /**< GL_ARB_viewport_array */
3582 GLuint MaxWindowRectangles
; /**< GL_EXT_window_rectangles */
3584 struct gl_program_constants Program
[MESA_SHADER_STAGES
];
3585 GLuint MaxProgramMatrices
;
3586 GLuint MaxProgramMatrixStackDepth
;
3589 GLuint SamplesPassed
;
3592 GLuint PrimitivesGenerated
;
3593 GLuint PrimitivesWritten
;
3594 GLuint VerticesSubmitted
;
3595 GLuint PrimitivesSubmitted
;
3596 GLuint VsInvocations
;
3598 GLuint TessInvocations
;
3599 GLuint GsInvocations
;
3600 GLuint GsPrimitives
;
3601 GLuint FsInvocations
;
3602 GLuint ComputeInvocations
;
3603 GLuint ClInPrimitives
;
3604 GLuint ClOutPrimitives
;
3607 GLuint MaxDrawBuffers
; /**< GL_ARB_draw_buffers */
3609 GLuint MaxColorAttachments
; /**< GL_EXT_framebuffer_object */
3610 GLuint MaxRenderbufferSize
; /**< GL_EXT_framebuffer_object */
3611 GLuint MaxSamples
; /**< GL_ARB_framebuffer_object */
3614 * GL_ARB_framebuffer_no_attachments
3616 GLuint MaxFramebufferWidth
;
3617 GLuint MaxFramebufferHeight
;
3618 GLuint MaxFramebufferLayers
;
3619 GLuint MaxFramebufferSamples
;
3621 /** Number of varying vectors between any two shader stages. */
3625 * GL_ARB_uniform_buffer_object
3627 GLuint MaxCombinedUniformBlocks
;
3628 GLuint MaxUniformBufferBindings
;
3629 GLuint MaxUniformBlockSize
;
3630 GLuint UniformBufferOffsetAlignment
;
3634 * GL_ARB_shader_storage_buffer_object
3636 GLuint MaxCombinedShaderStorageBlocks
;
3637 GLuint MaxShaderStorageBufferBindings
;
3638 GLuint MaxShaderStorageBlockSize
;
3639 GLuint ShaderStorageBufferOffsetAlignment
;
3643 * GL_ARB_explicit_uniform_location
3645 GLuint MaxUserAssignableUniformLocations
;
3647 /** geometry shader */
3648 GLuint MaxGeometryOutputVertices
;
3649 GLuint MaxGeometryTotalOutputComponents
;
3651 GLuint GLSLVersion
; /**< Desktop GLSL version supported (ex: 120 = 1.20) */
3654 * Changes default GLSL extension behavior from "error" to "warn". It's out
3655 * of spec, but it can make some apps work that otherwise wouldn't.
3657 GLboolean ForceGLSLExtensionsWarn
;
3660 * If non-zero, forces GLSL shaders to behave as if they began
3661 * with "#version ForceGLSLVersion".
3663 GLuint ForceGLSLVersion
;
3666 * Allow GLSL #extension directives in the middle of shaders.
3668 GLboolean AllowGLSLExtensionDirectiveMidShader
;
3671 * Allow GLSL built-in variables to be redeclared verbatim
3673 GLboolean AllowGLSLBuiltinVariableRedeclaration
;
3676 * Allow GLSL interpolation qualifier mismatch across shader stages.
3678 GLboolean AllowGLSLCrossStageInterpolationMismatch
;
3681 * Allow creating a higher compat profile (version 3.1+) for apps that
3682 * request it. Be careful when adding that driconf option because some
3683 * features are unimplemented and might not work correctly.
3685 GLboolean AllowHigherCompatVersion
;
3688 * Force computing the absolute value for sqrt() and inversesqrt() to follow
3689 * D3D9 when apps rely on this behaviour.
3691 GLboolean ForceGLSLAbsSqrt
;
3694 * Force uninitialized variables to default to zero.
3696 GLboolean GLSLZeroInit
;
3699 * Does the driver support real 32-bit integers? (Otherwise, integers are
3700 * simulated via floats.)
3702 GLboolean NativeIntegers
;
3705 * Does VertexID count from zero or from base vertex?
3708 * If desktop GLSL 1.30 or GLSL ES 3.00 are not supported, this field is
3709 * ignored and need not be set.
3711 bool VertexID_is_zero_based
;
3714 * If the driver supports real 32-bit integers, what integer value should be
3715 * used for boolean true in uniform uploads? (Usually 1 or ~0.)
3717 GLuint UniformBooleanTrue
;
3720 * Maximum amount of time, measured in nanseconds, that the server can wait.
3722 GLuint64 MaxServerWaitTimeout
;
3724 /** GL_EXT_provoking_vertex */
3725 GLboolean QuadsFollowProvokingVertexConvention
;
3727 /** GL_ARB_viewport_array */
3728 GLenum16 LayerAndVPIndexProvokingVertex
;
3730 /** OpenGL version 3.0 */
3731 GLbitfield ContextFlags
; /**< Ex: GL_CONTEXT_FLAG_FORWARD_COMPATIBLE_BIT */
3733 /** OpenGL version 3.2 */
3734 GLbitfield ProfileMask
; /**< Mask of CONTEXT_x_PROFILE_BIT */
3736 /** OpenGL version 4.4 */
3737 GLuint MaxVertexAttribStride
;
3739 /** GL_EXT_transform_feedback */
3740 GLuint MaxTransformFeedbackBuffers
;
3741 GLuint MaxTransformFeedbackSeparateComponents
;
3742 GLuint MaxTransformFeedbackInterleavedComponents
;
3743 GLuint MaxVertexStreams
;
3745 /** GL_EXT_gpu_shader4 */
3746 GLint MinProgramTexelOffset
, MaxProgramTexelOffset
;
3748 /** GL_ARB_texture_gather */
3749 GLuint MinProgramTextureGatherOffset
;
3750 GLuint MaxProgramTextureGatherOffset
;
3751 GLuint MaxProgramTextureGatherComponents
;
3753 /* GL_ARB_robustness */
3754 GLenum16 ResetStrategy
;
3756 /* GL_KHR_robustness */
3757 GLboolean RobustAccess
;
3759 /* GL_ARB_blend_func_extended */
3760 GLuint MaxDualSourceDrawBuffers
;
3763 * Whether the implementation strips out and ignores texture borders.
3765 * Many GPU hardware implementations don't support rendering with texture
3766 * borders and mipmapped textures. (Note: not static border color, but the
3767 * old 1-pixel border around each edge). Implementations then have to do
3768 * slow fallbacks to be correct, or just ignore the border and be fast but
3769 * wrong. Setting the flag strips the border off of TexImage calls,
3770 * providing "fast but wrong" at significantly reduced driver complexity.
3772 * Texture borders are deprecated in GL 3.0.
3774 GLboolean StripTextureBorder
;
3777 * For drivers which can do a better job at eliminating unused uniforms
3778 * than the GLSL compiler.
3780 * XXX Remove these as soon as a better solution is available.
3782 GLboolean GLSLSkipStrictMaxUniformLimitCheck
;
3784 /** Whether gl_FragCoord and gl_FrontFacing are system values. */
3785 bool GLSLFragCoordIsSysVal
;
3786 bool GLSLFrontFacingIsSysVal
;
3789 * Run the minimum amount of GLSL optimizations to be able to link
3790 * shaders optimally (eliminate dead varyings and uniforms) and just do
3791 * all the necessary lowering.
3793 bool GLSLOptimizeConservatively
;
3796 * True if gl_TessLevelInner/Outer[] in the TES should be inputs
3797 * (otherwise, they're system values).
3799 bool GLSLTessLevelsAsInputs
;
3802 * Always use the GetTransformFeedbackVertexCount() driver hook, rather
3803 * than passing the transform feedback object to the drawing function.
3805 GLboolean AlwaysUseGetTransformFeedbackVertexCount
;
3807 /** GL_ARB_map_buffer_alignment */
3808 GLuint MinMapBufferAlignment
;
3811 * Disable varying packing. This is out of spec, but potentially useful
3812 * for older platforms that supports a limited number of texture
3813 * indirections--on these platforms, unpacking the varyings in the fragment
3814 * shader increases the number of texture indirections by 1, which might
3815 * make some shaders not executable at all.
3817 * Drivers that support transform feedback must set this value to GL_FALSE.
3819 GLboolean DisableVaryingPacking
;
3822 * UBOs and SSBOs can be packed tightly by the OpenGL implementation when
3823 * layout is set as shared (the default) or packed. However most Mesa drivers
3824 * just use STD140 for these layouts. This flag allows drivers to use STD430
3825 * for packed and shared layouts which allows arrays to be packed more
3828 bool UseSTD430AsDefaultPacking
;
3831 * Should meaningful names be generated for compiler temporary variables?
3833 * Generally, it is not useful to have the compiler generate "meaningful"
3834 * names for temporary variables that it creates. This can, however, be a
3835 * useful debugging aid. In Mesa debug builds or release builds when
3836 * MESA_GLSL is set at run-time, meaningful names will be generated.
3837 * Drivers can also force names to be generated by setting this field.
3838 * For example, the i965 driver may set it when INTEL_DEBUG=vs (to dump
3839 * vertex shader assembly) is set at run-time.
3841 bool GenerateTemporaryNames
;
3844 * Maximum value supported for an index in DrawElements and friends.
3846 * This must be at least (1ull<<24)-1. The default value is
3849 * \since ES 3.0 or GL_ARB_ES3_compatibility
3850 * \sa _mesa_init_constants
3852 GLuint64 MaxElementIndex
;
3855 * Disable interpretation of line continuations (lines ending with a
3856 * backslash character ('\') in GLSL source.
3858 GLboolean DisableGLSLLineContinuations
;
3860 /** GL_ARB_texture_multisample */
3861 GLint MaxColorTextureSamples
;
3862 GLint MaxDepthTextureSamples
;
3863 GLint MaxIntegerSamples
;
3866 * GL_EXT_texture_multisample_blit_scaled implementation assumes that
3867 * samples are laid out in a rectangular grid roughly corresponding to
3868 * sample locations within a pixel. Below SampleMap{2,4,8}x variables
3869 * are used to map indices of rectangular grid to sample numbers within
3870 * a pixel. This mapping of indices to sample numbers must be initialized
3871 * by the driver for the target hardware. For example, if we have the 8X
3872 * MSAA sample number layout (sample positions) for XYZ hardware:
3874 * sample indices layout sample number layout
3875 * --------- ---------
3876 * | 0 | 1 | | a | b |
3877 * --------- ---------
3878 * | 2 | 3 | | c | d |
3879 * --------- ---------
3880 * | 4 | 5 | | e | f |
3881 * --------- ---------
3882 * | 6 | 7 | | g | h |
3883 * --------- ---------
3885 * Where a,b,c,d,e,f,g,h are integers between [0-7].
3887 * Then, initialize the SampleMap8x variable for XYZ hardware as shown
3889 * SampleMap8x = {a, b, c, d, e, f, g, h};
3891 * Follow the logic for sample counts 2-8.
3893 * For 16x the sample indices layout as a 4x4 grid as follows:
3905 uint8_t SampleMap2x
[2];
3906 uint8_t SampleMap4x
[4];
3907 uint8_t SampleMap8x
[8];
3908 uint8_t SampleMap16x
[16];
3910 /** GL_ARB_shader_atomic_counters */
3911 GLuint MaxAtomicBufferBindings
;
3912 GLuint MaxAtomicBufferSize
;
3913 GLuint MaxCombinedAtomicBuffers
;
3914 GLuint MaxCombinedAtomicCounters
;
3916 /** GL_ARB_vertex_attrib_binding */
3917 GLint MaxVertexAttribRelativeOffset
;
3918 GLint MaxVertexAttribBindings
;
3920 /* GL_ARB_shader_image_load_store */
3921 GLuint MaxImageUnits
;
3922 GLuint MaxCombinedShaderOutputResources
;
3923 GLuint MaxImageSamples
;
3924 GLuint MaxCombinedImageUniforms
;
3926 /** GL_ARB_compute_shader */
3927 GLuint MaxComputeWorkGroupCount
[3]; /* Array of x, y, z dimensions */
3928 GLuint MaxComputeWorkGroupSize
[3]; /* Array of x, y, z dimensions */
3929 GLuint MaxComputeWorkGroupInvocations
;
3930 GLuint MaxComputeSharedMemorySize
;
3932 /** GL_ARB_compute_variable_group_size */
3933 GLuint MaxComputeVariableGroupSize
[3]; /* Array of x, y, z dimensions */
3934 GLuint MaxComputeVariableGroupInvocations
;
3936 /** GL_ARB_gpu_shader5 */
3937 GLfloat MinFragmentInterpolationOffset
;
3938 GLfloat MaxFragmentInterpolationOffset
;
3940 GLboolean FakeSWMSAA
;
3942 /** GL_KHR_context_flush_control */
3943 GLenum16 ContextReleaseBehavior
;
3945 struct gl_shader_compiler_options ShaderCompilerOptions
[MESA_SHADER_STAGES
];
3947 /** GL_ARB_tessellation_shader */
3948 GLuint MaxPatchVertices
;
3949 GLuint MaxTessGenLevel
;
3950 GLuint MaxTessPatchComponents
;
3951 GLuint MaxTessControlTotalOutputComponents
;
3952 bool LowerTessLevel
; /**< Lower gl_TessLevel* from float[n] to vecn? */
3953 bool PrimitiveRestartForPatches
;
3954 bool LowerCsDerivedVariables
; /**< Lower gl_GlobalInvocationID and
3955 * gl_LocalInvocationIndex based on
3956 * other builtin variables. */
3958 /** GL_OES_primitive_bounding_box */
3959 bool NoPrimitiveBoundingBoxOutput
;
3961 /** GL_ARB_sparse_buffer */
3962 GLuint SparseBufferPageSize
;
3964 /** Used as an input for sha1 generation in the on-disk shader cache */
3965 unsigned char *dri_config_options_sha1
;
3967 /** When drivers are OK with mapped buffers during draw and other calls. */
3968 bool AllowMappedBuffersDuringExecution
;
3970 /** GL_ARB_get_program_binary */
3971 GLuint NumProgramBinaryFormats
;
3973 /** GL_NV_conservative_raster */
3974 GLuint MaxSubpixelPrecisionBiasBits
;
3976 /** GL_NV_conservative_raster_dilate */
3977 GLfloat ConservativeRasterDilateRange
[2];
3978 GLfloat ConservativeRasterDilateGranularity
;
3980 /** Is the drivers uniform storage packed or padded to 16 bytes. */
3981 bool PackedDriverUniformStorage
;
3983 /** GL_ARB_gl_spirv */
3984 struct spirv_supported_capabilities SpirVCapabilities
;
3989 * Enable flag for each OpenGL extension. Different device drivers will
3990 * enable different extensions at runtime.
3992 struct gl_extensions
3994 GLboolean dummy
; /* don't remove this! */
3995 GLboolean dummy_true
; /* Set true by _mesa_init_extensions(). */
3996 GLboolean dummy_false
; /* Set false by _mesa_init_extensions(). */
3997 GLboolean ANGLE_texture_compression_dxt
;
3998 GLboolean ARB_ES2_compatibility
;
3999 GLboolean ARB_ES3_compatibility
;
4000 GLboolean ARB_ES3_1_compatibility
;
4001 GLboolean ARB_ES3_2_compatibility
;
4002 GLboolean ARB_arrays_of_arrays
;
4003 GLboolean ARB_base_instance
;
4004 GLboolean ARB_bindless_texture
;
4005 GLboolean ARB_blend_func_extended
;
4006 GLboolean ARB_buffer_storage
;
4007 GLboolean ARB_clear_texture
;
4008 GLboolean ARB_clip_control
;
4009 GLboolean ARB_color_buffer_float
;
4010 GLboolean ARB_compatibility
;
4011 GLboolean ARB_compute_shader
;
4012 GLboolean ARB_compute_variable_group_size
;
4013 GLboolean ARB_conditional_render_inverted
;
4014 GLboolean ARB_conservative_depth
;
4015 GLboolean ARB_copy_image
;
4016 GLboolean ARB_cull_distance
;
4017 GLboolean ARB_depth_buffer_float
;
4018 GLboolean ARB_depth_clamp
;
4019 GLboolean ARB_depth_texture
;
4020 GLboolean ARB_derivative_control
;
4021 GLboolean ARB_draw_buffers_blend
;
4022 GLboolean ARB_draw_elements_base_vertex
;
4023 GLboolean ARB_draw_indirect
;
4024 GLboolean ARB_draw_instanced
;
4025 GLboolean ARB_fragment_coord_conventions
;
4026 GLboolean ARB_fragment_layer_viewport
;
4027 GLboolean ARB_fragment_program
;
4028 GLboolean ARB_fragment_program_shadow
;
4029 GLboolean ARB_fragment_shader
;
4030 GLboolean ARB_framebuffer_no_attachments
;
4031 GLboolean ARB_framebuffer_object
;
4032 GLboolean ARB_enhanced_layouts
;
4033 GLboolean ARB_explicit_attrib_location
;
4034 GLboolean ARB_explicit_uniform_location
;
4035 GLboolean ARB_gl_spirv
;
4036 GLboolean ARB_gpu_shader5
;
4037 GLboolean ARB_gpu_shader_fp64
;
4038 GLboolean ARB_gpu_shader_int64
;
4039 GLboolean ARB_half_float_vertex
;
4040 GLboolean ARB_indirect_parameters
;
4041 GLboolean ARB_instanced_arrays
;
4042 GLboolean ARB_internalformat_query
;
4043 GLboolean ARB_internalformat_query2
;
4044 GLboolean ARB_map_buffer_range
;
4045 GLboolean ARB_occlusion_query
;
4046 GLboolean ARB_occlusion_query2
;
4047 GLboolean ARB_pipeline_statistics_query
;
4048 GLboolean ARB_point_sprite
;
4049 GLboolean ARB_polygon_offset_clamp
;
4050 GLboolean ARB_post_depth_coverage
;
4051 GLboolean ARB_query_buffer_object
;
4052 GLboolean ARB_robust_buffer_access_behavior
;
4053 GLboolean ARB_sample_shading
;
4054 GLboolean ARB_seamless_cube_map
;
4055 GLboolean ARB_shader_atomic_counter_ops
;
4056 GLboolean ARB_shader_atomic_counters
;
4057 GLboolean ARB_shader_ballot
;
4058 GLboolean ARB_shader_bit_encoding
;
4059 GLboolean ARB_shader_clock
;
4060 GLboolean ARB_shader_draw_parameters
;
4061 GLboolean ARB_shader_group_vote
;
4062 GLboolean ARB_shader_image_load_store
;
4063 GLboolean ARB_shader_image_size
;
4064 GLboolean ARB_shader_precision
;
4065 GLboolean ARB_shader_stencil_export
;
4066 GLboolean ARB_shader_storage_buffer_object
;
4067 GLboolean ARB_shader_texture_image_samples
;
4068 GLboolean ARB_shader_texture_lod
;
4069 GLboolean ARB_shader_viewport_layer_array
;
4070 GLboolean ARB_shading_language_packing
;
4071 GLboolean ARB_shading_language_420pack
;
4072 GLboolean ARB_shadow
;
4073 GLboolean ARB_sparse_buffer
;
4074 GLboolean ARB_stencil_texturing
;
4076 GLboolean ARB_tessellation_shader
;
4077 GLboolean ARB_texture_border_clamp
;
4078 GLboolean ARB_texture_buffer_object
;
4079 GLboolean ARB_texture_buffer_object_rgb32
;
4080 GLboolean ARB_texture_buffer_range
;
4081 GLboolean ARB_texture_compression_bptc
;
4082 GLboolean ARB_texture_compression_rgtc
;
4083 GLboolean ARB_texture_cube_map
;
4084 GLboolean ARB_texture_cube_map_array
;
4085 GLboolean ARB_texture_env_combine
;
4086 GLboolean ARB_texture_env_crossbar
;
4087 GLboolean ARB_texture_env_dot3
;
4088 GLboolean ARB_texture_filter_anisotropic
;
4089 GLboolean ARB_texture_float
;
4090 GLboolean ARB_texture_gather
;
4091 GLboolean ARB_texture_mirror_clamp_to_edge
;
4092 GLboolean ARB_texture_multisample
;
4093 GLboolean ARB_texture_non_power_of_two
;
4094 GLboolean ARB_texture_stencil8
;
4095 GLboolean ARB_texture_query_levels
;
4096 GLboolean ARB_texture_query_lod
;
4097 GLboolean ARB_texture_rg
;
4098 GLboolean ARB_texture_rgb10_a2ui
;
4099 GLboolean ARB_texture_view
;
4100 GLboolean ARB_timer_query
;
4101 GLboolean ARB_transform_feedback2
;
4102 GLboolean ARB_transform_feedback3
;
4103 GLboolean ARB_transform_feedback_instanced
;
4104 GLboolean ARB_transform_feedback_overflow_query
;
4105 GLboolean ARB_uniform_buffer_object
;
4106 GLboolean ARB_vertex_attrib_64bit
;
4107 GLboolean ARB_vertex_program
;
4108 GLboolean ARB_vertex_shader
;
4109 GLboolean ARB_vertex_type_10f_11f_11f_rev
;
4110 GLboolean ARB_vertex_type_2_10_10_10_rev
;
4111 GLboolean ARB_viewport_array
;
4112 GLboolean EXT_blend_color
;
4113 GLboolean EXT_blend_equation_separate
;
4114 GLboolean EXT_blend_func_separate
;
4115 GLboolean EXT_blend_minmax
;
4116 GLboolean EXT_depth_bounds_test
;
4117 GLboolean EXT_disjoint_timer_query
;
4118 GLboolean EXT_draw_buffers2
;
4119 GLboolean EXT_framebuffer_multisample
;
4120 GLboolean EXT_framebuffer_multisample_blit_scaled
;
4121 GLboolean EXT_framebuffer_sRGB
;
4122 GLboolean EXT_gpu_program_parameters
;
4123 GLboolean EXT_gpu_shader4
;
4124 GLboolean EXT_memory_object
;
4125 GLboolean EXT_memory_object_fd
;
4126 GLboolean EXT_packed_float
;
4127 GLboolean EXT_pixel_buffer_object
;
4128 GLboolean EXT_point_parameters
;
4129 GLboolean EXT_provoking_vertex
;
4130 GLboolean EXT_semaphore
;
4131 GLboolean EXT_semaphore_fd
;
4132 GLboolean EXT_shader_integer_mix
;
4133 GLboolean EXT_shader_samples_identical
;
4134 GLboolean EXT_stencil_two_side
;
4135 GLboolean EXT_texture_array
;
4136 GLboolean EXT_texture_compression_latc
;
4137 GLboolean EXT_texture_compression_s3tc
;
4138 GLboolean EXT_texture_env_dot3
;
4139 GLboolean EXT_texture_filter_anisotropic
;
4140 GLboolean EXT_texture_integer
;
4141 GLboolean EXT_texture_mirror_clamp
;
4142 GLboolean EXT_texture_shared_exponent
;
4143 GLboolean EXT_texture_snorm
;
4144 GLboolean EXT_texture_sRGB
;
4145 GLboolean EXT_texture_sRGB_decode
;
4146 GLboolean EXT_texture_swizzle
;
4147 GLboolean EXT_texture_type_2_10_10_10_REV
;
4148 GLboolean EXT_transform_feedback
;
4149 GLboolean EXT_timer_query
;
4150 GLboolean EXT_vertex_array_bgra
;
4151 GLboolean EXT_window_rectangles
;
4152 GLboolean OES_copy_image
;
4153 GLboolean OES_primitive_bounding_box
;
4154 GLboolean OES_sample_variables
;
4155 GLboolean OES_standard_derivatives
;
4156 GLboolean OES_texture_buffer
;
4157 GLboolean OES_texture_cube_map_array
;
4158 GLboolean OES_viewport_array
;
4159 /* vendor extensions */
4160 GLboolean AMD_performance_monitor
;
4161 GLboolean AMD_pinned_memory
;
4162 GLboolean AMD_seamless_cubemap_per_texture
;
4163 GLboolean AMD_vertex_shader_layer
;
4164 GLboolean AMD_vertex_shader_viewport_index
;
4165 GLboolean ANDROID_extension_pack_es31a
;
4166 GLboolean APPLE_object_purgeable
;
4167 GLboolean ATI_meminfo
;
4168 GLboolean ATI_texture_compression_3dc
;
4169 GLboolean ATI_texture_mirror_once
;
4170 GLboolean ATI_texture_env_combine3
;
4171 GLboolean ATI_fragment_shader
;
4172 GLboolean ATI_separate_stencil
;
4173 GLboolean GREMEDY_string_marker
;
4174 GLboolean INTEL_conservative_rasterization
;
4175 GLboolean INTEL_performance_query
;
4176 GLboolean KHR_blend_equation_advanced
;
4177 GLboolean KHR_blend_equation_advanced_coherent
;
4178 GLboolean KHR_robustness
;
4179 GLboolean KHR_texture_compression_astc_hdr
;
4180 GLboolean KHR_texture_compression_astc_ldr
;
4181 GLboolean KHR_texture_compression_astc_sliced_3d
;
4182 GLboolean MESA_tile_raster_order
;
4183 GLboolean MESA_pack_invert
;
4184 GLboolean EXT_shader_framebuffer_fetch
;
4185 GLboolean EXT_shader_framebuffer_fetch_non_coherent
;
4186 GLboolean MESA_shader_integer_functions
;
4187 GLboolean MESA_ycbcr_texture
;
4188 GLboolean NV_conditional_render
;
4189 GLboolean NV_fill_rectangle
;
4190 GLboolean NV_fog_distance
;
4191 GLboolean NV_point_sprite
;
4192 GLboolean NV_primitive_restart
;
4193 GLboolean NV_texture_barrier
;
4194 GLboolean NV_texture_env_combine4
;
4195 GLboolean NV_texture_rectangle
;
4196 GLboolean NV_vdpau_interop
;
4197 GLboolean NV_conservative_raster
;
4198 GLboolean NV_conservative_raster_dilate
;
4199 GLboolean NV_conservative_raster_pre_snap_triangles
;
4200 GLboolean NV_conservative_raster_pre_snap
;
4201 GLboolean NVX_gpu_memory_info
;
4202 GLboolean TDFX_texture_compression_FXT1
;
4203 GLboolean OES_EGL_image
;
4204 GLboolean OES_draw_texture
;
4205 GLboolean OES_depth_texture_cube_map
;
4206 GLboolean OES_EGL_image_external
;
4207 GLboolean OES_texture_float
;
4208 GLboolean OES_texture_float_linear
;
4209 GLboolean OES_texture_half_float
;
4210 GLboolean OES_texture_half_float_linear
;
4211 GLboolean OES_compressed_ETC1_RGB8_texture
;
4212 GLboolean OES_geometry_shader
;
4213 GLboolean OES_texture_compression_astc
;
4214 GLboolean extension_sentinel
;
4215 /** The extension string */
4216 const GLubyte
*String
;
4217 /** Number of supported extensions */
4220 * The context version which extension helper functions compare against.
4221 * By default, the value is equal to ctx->Version. This changes to ~0
4222 * while meta is in progress.
4226 * Force-enabled, yet unrecognized, extensions.
4227 * See _mesa_one_time_init_extension_overrides()
4229 #define MAX_UNRECOGNIZED_EXTENSIONS 16
4230 const char *unrecognized_extensions
[MAX_UNRECOGNIZED_EXTENSIONS
];
4235 * A stack of matrices (projection, modelview, color, texture, etc).
4237 struct gl_matrix_stack
4239 GLmatrix
*Top
; /**< points into Stack */
4240 GLmatrix
*Stack
; /**< array [MaxDepth] of GLmatrix */
4241 unsigned StackSize
; /**< Number of elements in Stack */
4242 GLuint Depth
; /**< 0 <= Depth < MaxDepth */
4243 GLuint MaxDepth
; /**< size of Stack[] array */
4244 GLuint DirtyFlag
; /**< _NEW_MODELVIEW or _NEW_PROJECTION, for example */
4249 * \name Bits for image transfer operations
4250 * \sa __struct gl_contextRec::ImageTransferState.
4253 #define IMAGE_SCALE_BIAS_BIT 0x1
4254 #define IMAGE_SHIFT_OFFSET_BIT 0x2
4255 #define IMAGE_MAP_COLOR_BIT 0x4
4256 #define IMAGE_CLAMP_BIT 0x800
4259 /** Pixel Transfer ops */
4260 #define IMAGE_BITS (IMAGE_SCALE_BIAS_BIT | \
4261 IMAGE_SHIFT_OFFSET_BIT | \
4262 IMAGE_MAP_COLOR_BIT)
4266 * \name Bits to indicate what state has changed.
4269 #define _NEW_MODELVIEW (1u << 0) /**< gl_context::ModelView */
4270 #define _NEW_PROJECTION (1u << 1) /**< gl_context::Projection */
4271 #define _NEW_TEXTURE_MATRIX (1u << 2) /**< gl_context::TextureMatrix */
4272 #define _NEW_COLOR (1u << 3) /**< gl_context::Color */
4273 #define _NEW_DEPTH (1u << 4) /**< gl_context::Depth */
4274 #define _NEW_EVAL (1u << 5) /**< gl_context::Eval, EvalMap */
4275 #define _NEW_FOG (1u << 6) /**< gl_context::Fog */
4276 #define _NEW_HINT (1u << 7) /**< gl_context::Hint */
4277 #define _NEW_LIGHT (1u << 8) /**< gl_context::Light */
4278 #define _NEW_LINE (1u << 9) /**< gl_context::Line */
4279 #define _NEW_PIXEL (1u << 10) /**< gl_context::Pixel */
4280 #define _NEW_POINT (1u << 11) /**< gl_context::Point */
4281 #define _NEW_POLYGON (1u << 12) /**< gl_context::Polygon */
4282 #define _NEW_POLYGONSTIPPLE (1u << 13) /**< gl_context::PolygonStipple */
4283 #define _NEW_SCISSOR (1u << 14) /**< gl_context::Scissor */
4284 #define _NEW_STENCIL (1u << 15) /**< gl_context::Stencil */
4285 #define _NEW_TEXTURE_OBJECT (1u << 16) /**< gl_context::Texture (bindings only) */
4286 #define _NEW_TRANSFORM (1u << 17) /**< gl_context::Transform */
4287 #define _NEW_VIEWPORT (1u << 18) /**< gl_context::Viewport */
4288 #define _NEW_TEXTURE_STATE (1u << 19) /**< gl_context::Texture (states only) */
4289 #define _NEW_ARRAY (1u << 20) /**< gl_context::Array */
4290 #define _NEW_RENDERMODE (1u << 21) /**< gl_context::RenderMode, etc */
4291 #define _NEW_BUFFERS (1u << 22) /**< gl_context::Visual, DrawBuffer, */
4292 #define _NEW_CURRENT_ATTRIB (1u << 23) /**< gl_context::Current */
4293 #define _NEW_MULTISAMPLE (1u << 24) /**< gl_context::Multisample */
4294 #define _NEW_TRACK_MATRIX (1u << 25) /**< gl_context::VertexProgram */
4295 #define _NEW_PROGRAM (1u << 26) /**< New program/shader state */
4296 #define _NEW_PROGRAM_CONSTANTS (1u << 27)
4298 #define _NEW_FRAG_CLAMP (1u << 29)
4299 /* gap, re-use for core Mesa state only; use ctx->DriverFlags otherwise */
4300 #define _NEW_VARYING_VP_INPUTS (1u << 31) /**< gl_context::varying_vp_inputs */
4306 * Composite state flags
4309 #define _NEW_TEXTURE (_NEW_TEXTURE_OBJECT | _NEW_TEXTURE_STATE)
4311 #define _MESA_NEW_NEED_EYE_COORDS (_NEW_LIGHT | \
4312 _NEW_TEXTURE_STATE | \
4317 #define _MESA_NEW_SEPARATE_SPECULAR (_NEW_LIGHT | \
4327 /* This has to be included here. */
4331 /** Opaque declaration of display list payload data type */
4332 union gl_dlist_node
;
4336 * Per-display list information.
4338 struct gl_display_list
4341 GLbitfield Flags
; /**< DLIST_x flags */
4342 GLchar
*Label
; /**< GL_KHR_debug */
4343 /** The dlist commands are in a linked list of nodes */
4344 union gl_dlist_node
*Head
;
4349 * State used during display list compilation and execution.
4351 struct gl_dlist_state
4353 struct gl_display_list
*CurrentList
; /**< List currently being compiled */
4354 union gl_dlist_node
*CurrentBlock
; /**< Pointer to current block of nodes */
4355 GLuint CurrentPos
; /**< Index into current block of nodes */
4356 GLuint CallDepth
; /**< Current recursion calling depth */
4358 GLvertexformat ListVtxfmt
;
4360 GLubyte ActiveAttribSize
[VERT_ATTRIB_MAX
];
4361 GLfloat CurrentAttrib
[VERT_ATTRIB_MAX
][4];
4363 GLubyte ActiveMaterialSize
[MAT_ATTRIB_MAX
];
4364 GLfloat CurrentMaterial
[MAT_ATTRIB_MAX
][4];
4367 /* State known to have been set by the currently-compiling display
4368 * list. Used to eliminate some redundant state changes.
4370 GLenum16 ShadeModel
;
4375 * Driver-specific state flags.
4377 * These are or'd with gl_context::NewDriverState to notify a driver about
4378 * a state change. The driver sets the flags at context creation and
4379 * the meaning of the bits set is opaque to core Mesa.
4381 struct gl_driver_flags
4383 /** gl_context::Array::_DrawArrays (vertex array state) */
4386 /** gl_context::TransformFeedback::CurrentObject */
4387 uint64_t NewTransformFeedback
;
4389 /** gl_context::TransformFeedback::CurrentObject::shader_program */
4390 uint64_t NewTransformFeedbackProg
;
4392 /** gl_context::RasterDiscard */
4393 uint64_t NewRasterizerDiscard
;
4395 /** gl_context::TileRasterOrder* */
4396 uint64_t NewTileRasterOrder
;
4399 * gl_context::UniformBufferBindings
4400 * gl_shader_program::UniformBlocks
4402 uint64_t NewUniformBuffer
;
4405 * gl_context::ShaderStorageBufferBindings
4406 * gl_shader_program::ShaderStorageBlocks
4408 uint64_t NewShaderStorageBuffer
;
4410 uint64_t NewTextureBuffer
;
4413 * gl_context::AtomicBufferBindings
4415 uint64_t NewAtomicBuffer
;
4418 * gl_context::ImageUnits
4420 uint64_t NewImageUnits
;
4423 * gl_context::TessCtrlProgram::patch_default_*
4425 uint64_t NewDefaultTessLevels
;
4428 * gl_context::IntelConservativeRasterization
4430 uint64_t NewIntelConservativeRasterization
;
4433 * gl_context::NvConservativeRasterization
4435 uint64_t NewNvConservativeRasterization
;
4438 * gl_context::ConservativeRasterMode/ConservativeRasterDilate
4439 * gl_context::SubpixelPrecisionBias
4441 uint64_t NewNvConservativeRasterizationParams
;
4444 * gl_context::Scissor::WindowRects
4446 uint64_t NewWindowRectangles
;
4448 /** gl_context::Color::sRGBEnabled */
4449 uint64_t NewFramebufferSRGB
;
4451 /** gl_context::Scissor::EnableFlags */
4452 uint64_t NewScissorTest
;
4454 /** gl_context::Scissor::ScissorArray */
4455 uint64_t NewScissorRect
;
4457 /** gl_context::Color::Alpha* */
4458 uint64_t NewAlphaTest
;
4460 /** gl_context::Color::Blend/Dither */
4463 /** gl_context::Color::BlendColor */
4464 uint64_t NewBlendColor
;
4466 /** gl_context::Color::Color/Index */
4467 uint64_t NewColorMask
;
4469 /** gl_context::Depth */
4472 /** gl_context::Color::LogicOp/ColorLogicOp/IndexLogicOp */
4473 uint64_t NewLogicOp
;
4475 /** gl_context::Multisample::Enabled */
4476 uint64_t NewMultisampleEnable
;
4478 /** gl_context::Multisample::SampleAlphaTo* */
4479 uint64_t NewSampleAlphaToXEnable
;
4481 /** gl_context::Multisample::SampleCoverage/SampleMaskValue */
4482 uint64_t NewSampleMask
;
4484 /** gl_context::Multisample::(Min)SampleShading */
4485 uint64_t NewSampleShading
;
4487 /** gl_context::Stencil */
4488 uint64_t NewStencil
;
4490 /** gl_context::Transform::ClipOrigin/ClipDepthMode */
4491 uint64_t NewClipControl
;
4493 /** gl_context::Transform::EyeUserPlane */
4494 uint64_t NewClipPlane
;
4496 /** gl_context::Transform::ClipPlanesEnabled */
4497 uint64_t NewClipPlaneEnable
;
4499 /** gl_context::Transform::DepthClamp */
4500 uint64_t NewDepthClamp
;
4502 /** gl_context::Line */
4503 uint64_t NewLineState
;
4505 /** gl_context::Polygon */
4506 uint64_t NewPolygonState
;
4508 /** gl_context::PolygonStipple */
4509 uint64_t NewPolygonStipple
;
4511 /** gl_context::ViewportArray */
4512 uint64_t NewViewport
;
4514 /** Shader constants (uniforms, program parameters, state constants) */
4515 uint64_t NewShaderConstants
[MESA_SHADER_STAGES
];
4518 struct gl_buffer_binding
4520 struct gl_buffer_object
*BufferObject
;
4521 /** Start of uniform block data in the buffer */
4523 /** Size of data allowed to be referenced from the buffer (in bytes) */
4526 * glBindBufferBase() indicates that the Size should be ignored and only
4527 * limited by the current size of the BufferObject.
4529 GLboolean AutomaticSize
;
4533 * ARB_shader_image_load_store image unit.
4535 struct gl_image_unit
4538 * Texture object bound to this unit.
4540 struct gl_texture_object
*TexObj
;
4543 * Level of the texture object bound to this unit.
4548 * \c GL_TRUE if the whole level is bound as an array of layers, \c
4549 * GL_FALSE if only some specific layer of the texture is bound.
4555 * Layer of the texture object bound to this unit as specified by the
4561 * Layer of the texture object bound to this unit, or zero if
4567 * Access allowed to this texture image. Either \c GL_READ_ONLY,
4568 * \c GL_WRITE_ONLY or \c GL_READ_WRITE.
4573 * GL internal format that determines the interpretation of the
4574 * image memory when shader image operations are performed through
4580 * Mesa format corresponding to \c Format.
4582 mesa_format _ActualFormat
:16;
4586 * Shader subroutines storage
4588 struct gl_subroutine_index_binding
4594 struct gl_texture_handle_object
4596 struct gl_texture_object
*texObj
;
4597 struct gl_sampler_object
*sampObj
;
4601 struct gl_image_handle_object
4603 struct gl_image_unit imgObj
;
4607 struct gl_memory_object
4609 GLuint Name
; /**< hash table ID/name */
4610 GLboolean Immutable
; /**< denotes mutability state of parameters */
4611 GLboolean Dedicated
; /**< import memory from a dedicated allocation */
4614 struct gl_semaphore_object
4616 GLuint Name
; /**< hash table ID/name */
4620 * Mesa rendering context.
4622 * This is the central context data structure for Mesa. Almost all
4623 * OpenGL state is contained in this structure.
4624 * Think of this as a base class from which device drivers will derive
4629 /** State possibly shared with other contexts in the address space */
4630 struct gl_shared_state
*Shared
;
4632 /** \name API function pointer tables */
4637 * The current dispatch table for non-displaylist-saving execution, either
4638 * BeginEnd or OutsideBeginEnd
4640 struct _glapi_table
*Exec
;
4642 * The normal dispatch table for non-displaylist-saving, non-begin/end
4644 struct _glapi_table
*OutsideBeginEnd
;
4645 /** The dispatch table used between glNewList() and glEndList() */
4646 struct _glapi_table
*Save
;
4648 * The dispatch table used between glBegin() and glEnd() (outside of a
4649 * display list). Only valid functions between those two are set, which is
4650 * mostly just the set in a GLvertexformat struct.
4652 struct _glapi_table
*BeginEnd
;
4654 * Dispatch table for when a graphics reset has happened.
4656 struct _glapi_table
*ContextLost
;
4658 * Dispatch table used to marshal API calls from the client program to a
4659 * separate server thread. NULL if API calls are not being marshalled to
4662 struct _glapi_table
*MarshalExec
;
4664 * Dispatch table currently in use for fielding API calls from the client
4665 * program. If API calls are being marshalled to another thread, this ==
4666 * MarshalExec. Otherwise it == CurrentServerDispatch.
4668 struct _glapi_table
*CurrentClientDispatch
;
4671 * Dispatch table currently in use for performing API calls. == Save or
4674 struct _glapi_table
*CurrentServerDispatch
;
4678 struct glthread_state
*GLThread
;
4680 struct gl_config Visual
;
4681 struct gl_framebuffer
*DrawBuffer
; /**< buffer for writing */
4682 struct gl_framebuffer
*ReadBuffer
; /**< buffer for reading */
4683 struct gl_framebuffer
*WinSysDrawBuffer
; /**< set with MakeCurrent */
4684 struct gl_framebuffer
*WinSysReadBuffer
; /**< set with MakeCurrent */
4687 * Device driver function pointer table
4689 struct dd_function_table Driver
;
4691 /** Core/Driver constants */
4692 struct gl_constants Const
;
4694 /** \name The various 4x4 matrix stacks */
4696 struct gl_matrix_stack ModelviewMatrixStack
;
4697 struct gl_matrix_stack ProjectionMatrixStack
;
4698 struct gl_matrix_stack TextureMatrixStack
[MAX_TEXTURE_UNITS
];
4699 struct gl_matrix_stack ProgramMatrixStack
[MAX_PROGRAM_MATRICES
];
4700 struct gl_matrix_stack
*CurrentStack
; /**< Points to one of the above stacks */
4703 /** Combined modelview and projection matrix */
4704 GLmatrix _ModelProjectMatrix
;
4706 /** \name Display lists */
4707 struct gl_dlist_state ListState
;
4709 GLboolean ExecuteFlag
; /**< Execute GL commands? */
4710 GLboolean CompileFlag
; /**< Compile GL commands into display list? */
4712 /** Extension information */
4713 struct gl_extensions Extensions
;
4715 /** GL version integer, for example 31 for GL 3.1, or 20 for GLES 2.0. */
4717 char *VersionString
;
4719 /** \name State attribute stack (for glPush/PopAttrib) */
4721 GLuint AttribStackDepth
;
4722 struct gl_attrib_node
*AttribStack
[MAX_ATTRIB_STACK_DEPTH
];
4725 /** \name Renderer attribute groups
4727 * We define a struct for each attribute group to make pushing and popping
4728 * attributes easy. Also it's a good organization.
4731 struct gl_accum_attrib Accum
; /**< Accum buffer attributes */
4732 struct gl_colorbuffer_attrib Color
; /**< Color buffer attributes */
4733 struct gl_current_attrib Current
; /**< Current attributes */
4734 struct gl_depthbuffer_attrib Depth
; /**< Depth buffer attributes */
4735 struct gl_eval_attrib Eval
; /**< Eval attributes */
4736 struct gl_fog_attrib Fog
; /**< Fog attributes */
4737 struct gl_hint_attrib Hint
; /**< Hint attributes */
4738 struct gl_light_attrib Light
; /**< Light attributes */
4739 struct gl_line_attrib Line
; /**< Line attributes */
4740 struct gl_list_attrib List
; /**< List attributes */
4741 struct gl_multisample_attrib Multisample
;
4742 struct gl_pixel_attrib Pixel
; /**< Pixel attributes */
4743 struct gl_point_attrib Point
; /**< Point attributes */
4744 struct gl_polygon_attrib Polygon
; /**< Polygon attributes */
4745 GLuint PolygonStipple
[32]; /**< Polygon stipple */
4746 struct gl_scissor_attrib Scissor
; /**< Scissor attributes */
4747 struct gl_stencil_attrib Stencil
; /**< Stencil buffer attributes */
4748 struct gl_texture_attrib Texture
; /**< Texture attributes */
4749 struct gl_transform_attrib Transform
; /**< Transformation attributes */
4750 struct gl_viewport_attrib ViewportArray
[MAX_VIEWPORTS
]; /**< Viewport attributes */
4751 GLuint SubpixelPrecisionBias
[2]; /**< Viewport attributes */
4754 /** \name Client attribute stack */
4756 GLuint ClientAttribStackDepth
;
4757 struct gl_attrib_node
*ClientAttribStack
[MAX_CLIENT_ATTRIB_STACK_DEPTH
];
4760 /** \name Client attribute groups */
4762 struct gl_array_attrib Array
; /**< Vertex arrays */
4763 struct gl_pixelstore_attrib Pack
; /**< Pixel packing */
4764 struct gl_pixelstore_attrib Unpack
; /**< Pixel unpacking */
4765 struct gl_pixelstore_attrib DefaultPacking
; /**< Default params */
4768 /** \name Other assorted state (not pushed/popped on attribute stack) */
4770 struct gl_pixelmaps PixelMaps
;
4772 struct gl_evaluators EvalMap
; /**< All evaluators */
4773 struct gl_feedback Feedback
; /**< Feedback */
4774 struct gl_selection Select
; /**< Selection */
4776 struct gl_program_state Program
; /**< general program state */
4777 struct gl_vertex_program_state VertexProgram
;
4778 struct gl_fragment_program_state FragmentProgram
;
4779 struct gl_geometry_program_state GeometryProgram
;
4780 struct gl_compute_program_state ComputeProgram
;
4781 struct gl_tess_ctrl_program_state TessCtrlProgram
;
4782 struct gl_tess_eval_program_state TessEvalProgram
;
4783 struct gl_ati_fragment_shader_state ATIFragmentShader
;
4785 struct gl_pipeline_shader_state Pipeline
; /**< GLSL pipeline shader object state */
4786 struct gl_pipeline_object Shader
; /**< GLSL shader object state */
4789 * Current active shader pipeline state
4791 * Almost all internal users want ::_Shader instead of ::Shader. The
4792 * exceptions are bits of legacy GLSL API that do not know about separate
4795 * If a program is active via \c glUseProgram, this will point to
4798 * If a program pipeline is active via \c glBindProgramPipeline, this will
4799 * point to \c ::Pipeline.Current.
4801 * If neither a program nor a program pipeline is active, this will point to
4802 * \c ::Pipeline.Default. This ensures that \c ::_Shader will never be
4805 struct gl_pipeline_object
*_Shader
;
4807 struct gl_query_state Query
; /**< occlusion, timer queries */
4809 struct gl_transform_feedback_state TransformFeedback
;
4811 struct gl_perf_monitor_state PerfMonitor
;
4812 struct gl_perf_query_state PerfQuery
;
4814 struct gl_buffer_object
*DrawIndirectBuffer
; /** < GL_ARB_draw_indirect */
4815 struct gl_buffer_object
*ParameterBuffer
; /** < GL_ARB_indirect_parameters */
4816 struct gl_buffer_object
*DispatchIndirectBuffer
; /** < GL_ARB_compute_shader */
4818 struct gl_buffer_object
*CopyReadBuffer
; /**< GL_ARB_copy_buffer */
4819 struct gl_buffer_object
*CopyWriteBuffer
; /**< GL_ARB_copy_buffer */
4821 struct gl_buffer_object
*QueryBuffer
; /**< GL_ARB_query_buffer_object */
4824 * Current GL_ARB_uniform_buffer_object binding referenced by
4825 * GL_UNIFORM_BUFFER target for glBufferData, glMapBuffer, etc.
4827 struct gl_buffer_object
*UniformBuffer
;
4830 * Current GL_ARB_shader_storage_buffer_object binding referenced by
4831 * GL_SHADER_STORAGE_BUFFER target for glBufferData, glMapBuffer, etc.
4833 struct gl_buffer_object
*ShaderStorageBuffer
;
4836 * Array of uniform buffers for GL_ARB_uniform_buffer_object and GL 3.1.
4837 * This is set up using glBindBufferRange() or glBindBufferBase(). They are
4838 * associated with uniform blocks by glUniformBlockBinding()'s state in the
4841 struct gl_buffer_binding
4842 UniformBufferBindings
[MAX_COMBINED_UNIFORM_BUFFERS
];
4845 * Array of shader storage buffers for ARB_shader_storage_buffer_object
4846 * and GL 4.3. This is set up using glBindBufferRange() or
4847 * glBindBufferBase(). They are associated with shader storage blocks by
4848 * glShaderStorageBlockBinding()'s state in the shader program.
4850 struct gl_buffer_binding
4851 ShaderStorageBufferBindings
[MAX_COMBINED_SHADER_STORAGE_BUFFERS
];
4854 * Object currently associated with the GL_ATOMIC_COUNTER_BUFFER
4857 struct gl_buffer_object
*AtomicBuffer
;
4860 * Object currently associated w/ the GL_EXTERNAL_VIRTUAL_MEMORY_BUFFER_AMD
4863 struct gl_buffer_object
*ExternalVirtualMemoryBuffer
;
4866 * Array of atomic counter buffer binding points.
4868 struct gl_buffer_binding
4869 AtomicBufferBindings
[MAX_COMBINED_ATOMIC_BUFFERS
];
4872 * Array of image units for ARB_shader_image_load_store.
4874 struct gl_image_unit ImageUnits
[MAX_IMAGE_UNITS
];
4876 struct gl_subroutine_index_binding SubroutineIndex
[MESA_SHADER_STAGES
];
4879 struct gl_meta_state
*Meta
; /**< for "meta" operations */
4881 /* GL_EXT_framebuffer_object */
4882 struct gl_renderbuffer
*CurrentRenderbuffer
;
4884 GLenum16 ErrorValue
; /**< Last error code */
4887 * Recognize and silence repeated error debug messages in buggy apps.
4889 const char *ErrorDebugFmtString
;
4890 GLuint ErrorDebugCount
;
4892 /* GL_ARB_debug_output/GL_KHR_debug */
4893 simple_mtx_t DebugMutex
;
4894 struct gl_debug_state
*Debug
;
4896 GLenum16 RenderMode
; /**< either GL_RENDER, GL_SELECT, GL_FEEDBACK */
4897 GLbitfield NewState
; /**< bitwise-or of _NEW_* flags */
4898 uint64_t NewDriverState
; /**< bitwise-or of flags from DriverFlags */
4900 struct gl_driver_flags DriverFlags
;
4902 GLboolean ViewportInitialized
; /**< has viewport size been initialized? */
4904 GLbitfield varying_vp_inputs
; /**< mask of VERT_BIT_* flags */
4906 /** \name Derived state */
4907 GLbitfield _ImageTransferState
;/**< bitwise-or of IMAGE_*_BIT flags */
4908 GLfloat _EyeZDir
[3];
4909 GLfloat _ModelViewInvScale
; /* may be for model- or eyespace lighting */
4910 GLfloat _ModelViewInvScaleEyespace
; /* always factor defined in spec */
4911 GLboolean _NeedEyeCoords
;
4912 GLboolean _ForceEyeCoords
;
4914 GLuint TextureStateTimestamp
; /**< detect changes to shared state */
4916 struct gl_list_extensions
*ListExt
; /**< driver dlist extensions */
4918 /** \name For debugging/development only */
4920 GLboolean FirstTimeCurrent
;
4924 * False if this context was created without a config. This is needed
4925 * because the initial state of glDrawBuffers depends on this
4927 GLboolean HasConfig
;
4929 GLboolean TextureFormatSupported
[MESA_FORMAT_COUNT
];
4931 GLboolean RasterDiscard
; /**< GL_RASTERIZER_DISCARD */
4932 GLboolean IntelConservativeRasterization
; /**< GL_CONSERVATIVE_RASTERIZATION_INTEL */
4933 GLboolean ConservativeRasterization
; /**< GL_CONSERVATIVE_RASTERIZATION_NV */
4934 GLfloat ConservativeRasterDilate
;
4935 GLenum16 ConservativeRasterMode
;
4937 /** Does glVertexAttrib(0) alias glVertex()? */
4938 bool _AttribZeroAliasesVertex
;
4941 * When set, TileRasterOrderIncreasingX/Y control the order that a tiled
4942 * renderer's tiles should be excecuted, to meet the requirements of
4943 * GL_MESA_tile_raster_order.
4945 GLboolean TileRasterOrderFixed
;
4946 GLboolean TileRasterOrderIncreasingX
;
4947 GLboolean TileRasterOrderIncreasingY
;
4950 * \name Hooks for module contexts.
4952 * These will eventually live in the driver or elsewhere.
4955 void *swrast_context
;
4956 void *swsetup_context
;
4957 void *swtnl_context
;
4958 struct vbo_context
*vbo_context
;
4959 struct st_context
*st
;
4964 * \name NV_vdpau_interop
4967 const void *vdpDevice
;
4968 const void *vdpGetProcAddress
;
4969 struct set
*vdpSurfaces
;
4973 * Has this context observed a GPU reset in any context in the share group?
4975 * Once this field becomes true, it is never reset to false.
4977 GLboolean ShareGroupReset
;
4980 * \name OES_primitive_bounding_box
4982 * Stores the arguments to glPrimitiveBoundingBox
4984 GLfloat PrimitiveBoundingBox
[8];
4986 struct disk_cache
*Cache
;
4989 * \name GL_ARB_bindless_texture
4992 struct hash_table_u64
*ResidentTextureHandles
;
4993 struct hash_table_u64
*ResidentImageHandles
;
4998 * Information about memory usage. All sizes are in kilobytes.
5000 struct gl_memory_info
5002 unsigned total_device_memory
; /**< size of device memory, e.g. VRAM */
5003 unsigned avail_device_memory
; /**< free device memory at the moment */
5004 unsigned total_staging_memory
; /**< size of staging memory, e.g. GART */
5005 unsigned avail_staging_memory
; /**< free staging memory at the moment */
5006 unsigned device_memory_evicted
; /**< size of memory evicted (monotonic counter) */
5007 unsigned nr_device_memory_evictions
; /**< # of evictions (monotonic counter) */
5011 extern int MESA_VERBOSE
;
5012 extern int MESA_DEBUG_FLAGS
;
5014 # define MESA_VERBOSE 0
5015 # define MESA_DEBUG_FLAGS 0
5019 /** The MESA_VERBOSE var is a bitmask of these flags */
5022 VERBOSE_VARRAY
= 0x0001,
5023 VERBOSE_TEXTURE
= 0x0002,
5024 VERBOSE_MATERIAL
= 0x0004,
5025 VERBOSE_PIPELINE
= 0x0008,
5026 VERBOSE_DRIVER
= 0x0010,
5027 VERBOSE_STATE
= 0x0020,
5028 VERBOSE_API
= 0x0040,
5029 VERBOSE_DISPLAY_LIST
= 0x0100,
5030 VERBOSE_LIGHTING
= 0x0200,
5031 VERBOSE_PRIMS
= 0x0400,
5032 VERBOSE_VERTS
= 0x0800,
5033 VERBOSE_DISASSEM
= 0x1000,
5034 VERBOSE_DRAW
= 0x2000,
5035 VERBOSE_SWAPBUFFERS
= 0x4000
5039 /** The MESA_DEBUG_FLAGS var is a bitmask of these flags */
5042 DEBUG_SILENT
= (1 << 0),
5043 DEBUG_ALWAYS_FLUSH
= (1 << 1),
5044 DEBUG_INCOMPLETE_TEXTURE
= (1 << 2),
5045 DEBUG_INCOMPLETE_FBO
= (1 << 3),
5046 DEBUG_CONTEXT
= (1 << 4)
5053 #endif /* MTYPES_H */