2 * Mesa 3-D graphics library
4 * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
5 * Copyright (C) 2009 VMware, Inc. All Rights Reserved.
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the "Software"),
9 * to deal in the Software without restriction, including without limitation
10 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11 * and/or sell copies of the Software, and to permit persons to whom the
12 * Software is furnished to do so, subject to the following conditions:
14 * The above copyright notice and this permission notice shall be included
15 * in all copies or substantial portions of the Software.
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
21 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
22 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
23 * OTHER DEALINGS IN THE SOFTWARE.
28 * Main Mesa data structures.
30 * Please try to mark derived values with a leading underscore ('_').
37 #include <stdint.h> /* uint32_t */
39 #include "c11/threads.h"
41 #include "main/glheader.h"
42 #include "main/config.h"
43 #include "glapi/glapi.h"
44 #include "math/m_matrix.h" /* GLmatrix */
45 #include "compiler/shader_enums.h"
46 #include "compiler/shader_info.h"
47 #include "main/formats.h" /* MESA_FORMAT_COUNT */
48 #include "compiler/glsl/list.h"
49 #include "util/bitscan.h"
50 #include "util/u_dynarray.h"
59 * \name 64-bit extension of GLbitfield.
62 typedef GLuint64 GLbitfield64
;
64 /** Set a single bit */
65 #define BITFIELD64_BIT(b) ((GLbitfield64)1 << (b))
66 /** Set all bits up to excluding bit b */
67 #define BITFIELD64_MASK(b) \
68 ((b) == 64 ? (~(GLbitfield64)0) : BITFIELD64_BIT(b) - 1)
69 /** Set count bits starting from bit b */
70 #define BITFIELD64_RANGE(b, count) \
71 (BITFIELD64_MASK((b) + (count)) & ~BITFIELD64_MASK(b))
75 * \name Some forward type declarations
78 struct _mesa_HashTable
;
79 struct gl_attrib_node
;
80 struct gl_list_extensions
;
82 struct gl_program_cache
;
83 struct gl_texture_object
;
84 struct gl_debug_state
;
87 struct gl_uniform_storage
;
88 struct prog_instruction
;
89 struct gl_program_parameter_list
;
96 /** Extra draw modes beyond GL_POINTS, GL_TRIANGLE_FAN, etc */
97 #define PRIM_MAX GL_PATCHES
98 #define PRIM_OUTSIDE_BEGIN_END (PRIM_MAX + 1)
99 #define PRIM_UNKNOWN (PRIM_MAX + 2)
102 * Determine if the given gl_varying_slot appears in the fragment shader.
104 static inline GLboolean
105 _mesa_varying_slot_in_fs(gl_varying_slot slot
)
108 case VARYING_SLOT_PSIZ
:
109 case VARYING_SLOT_BFC0
:
110 case VARYING_SLOT_BFC1
:
111 case VARYING_SLOT_EDGE
:
112 case VARYING_SLOT_CLIP_VERTEX
:
113 case VARYING_SLOT_LAYER
:
114 case VARYING_SLOT_TESS_LEVEL_OUTER
:
115 case VARYING_SLOT_TESS_LEVEL_INNER
:
116 case VARYING_SLOT_BOUNDING_BOX0
:
117 case VARYING_SLOT_BOUNDING_BOX1
:
125 * Indexes for all renderbuffers
129 /* the four standard color buffers */
137 /* optional aux buffer */
139 /* generic renderbuffers */
153 * Bit flags for all renderbuffers
155 #define BUFFER_BIT_FRONT_LEFT (1 << BUFFER_FRONT_LEFT)
156 #define BUFFER_BIT_BACK_LEFT (1 << BUFFER_BACK_LEFT)
157 #define BUFFER_BIT_FRONT_RIGHT (1 << BUFFER_FRONT_RIGHT)
158 #define BUFFER_BIT_BACK_RIGHT (1 << BUFFER_BACK_RIGHT)
159 #define BUFFER_BIT_AUX0 (1 << BUFFER_AUX0)
160 #define BUFFER_BIT_AUX1 (1 << BUFFER_AUX1)
161 #define BUFFER_BIT_AUX2 (1 << BUFFER_AUX2)
162 #define BUFFER_BIT_AUX3 (1 << BUFFER_AUX3)
163 #define BUFFER_BIT_DEPTH (1 << BUFFER_DEPTH)
164 #define BUFFER_BIT_STENCIL (1 << BUFFER_STENCIL)
165 #define BUFFER_BIT_ACCUM (1 << BUFFER_ACCUM)
166 #define BUFFER_BIT_COLOR0 (1 << BUFFER_COLOR0)
167 #define BUFFER_BIT_COLOR1 (1 << BUFFER_COLOR1)
168 #define BUFFER_BIT_COLOR2 (1 << BUFFER_COLOR2)
169 #define BUFFER_BIT_COLOR3 (1 << BUFFER_COLOR3)
170 #define BUFFER_BIT_COLOR4 (1 << BUFFER_COLOR4)
171 #define BUFFER_BIT_COLOR5 (1 << BUFFER_COLOR5)
172 #define BUFFER_BIT_COLOR6 (1 << BUFFER_COLOR6)
173 #define BUFFER_BIT_COLOR7 (1 << BUFFER_COLOR7)
176 * Mask of all the color buffer bits (but not accum).
178 #define BUFFER_BITS_COLOR (BUFFER_BIT_FRONT_LEFT | \
179 BUFFER_BIT_BACK_LEFT | \
180 BUFFER_BIT_FRONT_RIGHT | \
181 BUFFER_BIT_BACK_RIGHT | \
183 BUFFER_BIT_COLOR0 | \
184 BUFFER_BIT_COLOR1 | \
185 BUFFER_BIT_COLOR2 | \
186 BUFFER_BIT_COLOR3 | \
187 BUFFER_BIT_COLOR4 | \
188 BUFFER_BIT_COLOR5 | \
189 BUFFER_BIT_COLOR6 | \
192 /* Mask of bits for depth+stencil buffers */
193 #define BUFFER_BITS_DEPTH_STENCIL (BUFFER_BIT_DEPTH | BUFFER_BIT_STENCIL)
196 * Framebuffer configuration (aka visual / pixelformat)
197 * Note: some of these fields should be boolean, but it appears that
198 * code in drivers/dri/common/util.c requires int-sized fields.
204 GLuint doubleBufferMode
;
207 GLboolean haveAccumBuffer
;
208 GLboolean haveDepthBuffer
;
209 GLboolean haveStencilBuffer
;
211 GLint redBits
, greenBits
, blueBits
, alphaBits
; /* bits per comp */
212 GLuint redMask
, greenMask
, blueMask
, alphaMask
;
213 GLint rgbBits
; /* total bits for rgb */
214 GLint indexBits
; /* total bits for colorindex */
216 GLint accumRedBits
, accumGreenBits
, accumBlueBits
, accumAlphaBits
;
224 /* EXT_visual_rating / GLX 1.2 */
227 /* EXT_visual_info / GLX 1.2 */
228 GLint transparentPixel
;
229 /* colors are floats scaled to ints */
230 GLint transparentRed
, transparentGreen
, transparentBlue
, transparentAlpha
;
231 GLint transparentIndex
;
233 /* ARB_multisample / SGIS_multisample */
237 /* SGIX_pbuffer / GLX 1.3 */
238 GLint maxPbufferWidth
;
239 GLint maxPbufferHeight
;
240 GLint maxPbufferPixels
;
241 GLint optimalPbufferWidth
; /* Only for SGIX_pbuffer. */
242 GLint optimalPbufferHeight
; /* Only for SGIX_pbuffer. */
244 /* OML_swap_method */
247 /* EXT_texture_from_pixmap */
248 GLint bindToTextureRgb
;
249 GLint bindToTextureRgba
;
250 GLint bindToMipmapTexture
;
251 GLint bindToTextureTargets
;
254 /* EXT_framebuffer_sRGB */
260 * \name Bit flags used for updating material values.
263 #define MAT_ATTRIB_FRONT_AMBIENT 0
264 #define MAT_ATTRIB_BACK_AMBIENT 1
265 #define MAT_ATTRIB_FRONT_DIFFUSE 2
266 #define MAT_ATTRIB_BACK_DIFFUSE 3
267 #define MAT_ATTRIB_FRONT_SPECULAR 4
268 #define MAT_ATTRIB_BACK_SPECULAR 5
269 #define MAT_ATTRIB_FRONT_EMISSION 6
270 #define MAT_ATTRIB_BACK_EMISSION 7
271 #define MAT_ATTRIB_FRONT_SHININESS 8
272 #define MAT_ATTRIB_BACK_SHININESS 9
273 #define MAT_ATTRIB_FRONT_INDEXES 10
274 #define MAT_ATTRIB_BACK_INDEXES 11
275 #define MAT_ATTRIB_MAX 12
277 #define MAT_ATTRIB_AMBIENT(f) (MAT_ATTRIB_FRONT_AMBIENT+(f))
278 #define MAT_ATTRIB_DIFFUSE(f) (MAT_ATTRIB_FRONT_DIFFUSE+(f))
279 #define MAT_ATTRIB_SPECULAR(f) (MAT_ATTRIB_FRONT_SPECULAR+(f))
280 #define MAT_ATTRIB_EMISSION(f) (MAT_ATTRIB_FRONT_EMISSION+(f))
281 #define MAT_ATTRIB_SHININESS(f)(MAT_ATTRIB_FRONT_SHININESS+(f))
282 #define MAT_ATTRIB_INDEXES(f) (MAT_ATTRIB_FRONT_INDEXES+(f))
284 #define MAT_INDEX_AMBIENT 0
285 #define MAT_INDEX_DIFFUSE 1
286 #define MAT_INDEX_SPECULAR 2
288 #define MAT_BIT_FRONT_AMBIENT (1<<MAT_ATTRIB_FRONT_AMBIENT)
289 #define MAT_BIT_BACK_AMBIENT (1<<MAT_ATTRIB_BACK_AMBIENT)
290 #define MAT_BIT_FRONT_DIFFUSE (1<<MAT_ATTRIB_FRONT_DIFFUSE)
291 #define MAT_BIT_BACK_DIFFUSE (1<<MAT_ATTRIB_BACK_DIFFUSE)
292 #define MAT_BIT_FRONT_SPECULAR (1<<MAT_ATTRIB_FRONT_SPECULAR)
293 #define MAT_BIT_BACK_SPECULAR (1<<MAT_ATTRIB_BACK_SPECULAR)
294 #define MAT_BIT_FRONT_EMISSION (1<<MAT_ATTRIB_FRONT_EMISSION)
295 #define MAT_BIT_BACK_EMISSION (1<<MAT_ATTRIB_BACK_EMISSION)
296 #define MAT_BIT_FRONT_SHININESS (1<<MAT_ATTRIB_FRONT_SHININESS)
297 #define MAT_BIT_BACK_SHININESS (1<<MAT_ATTRIB_BACK_SHININESS)
298 #define MAT_BIT_FRONT_INDEXES (1<<MAT_ATTRIB_FRONT_INDEXES)
299 #define MAT_BIT_BACK_INDEXES (1<<MAT_ATTRIB_BACK_INDEXES)
302 #define FRONT_MATERIAL_BITS (MAT_BIT_FRONT_EMISSION | \
303 MAT_BIT_FRONT_AMBIENT | \
304 MAT_BIT_FRONT_DIFFUSE | \
305 MAT_BIT_FRONT_SPECULAR | \
306 MAT_BIT_FRONT_SHININESS | \
307 MAT_BIT_FRONT_INDEXES)
309 #define BACK_MATERIAL_BITS (MAT_BIT_BACK_EMISSION | \
310 MAT_BIT_BACK_AMBIENT | \
311 MAT_BIT_BACK_DIFFUSE | \
312 MAT_BIT_BACK_SPECULAR | \
313 MAT_BIT_BACK_SHININESS | \
314 MAT_BIT_BACK_INDEXES)
316 #define ALL_MATERIAL_BITS (FRONT_MATERIAL_BITS | BACK_MATERIAL_BITS)
325 GLfloat Attrib
[MAT_ATTRIB_MAX
][4];
333 #define LIGHT_SPOT 0x1
334 #define LIGHT_LOCAL_VIEWER 0x2
335 #define LIGHT_POSITIONAL 0x4
336 #define LIGHT_NEED_VERTICES (LIGHT_POSITIONAL|LIGHT_LOCAL_VIEWER)
341 * Light source state.
345 GLfloat Ambient
[4]; /**< ambient color */
346 GLfloat Diffuse
[4]; /**< diffuse color */
347 GLfloat Specular
[4]; /**< specular color */
348 GLfloat EyePosition
[4]; /**< position in eye coordinates */
349 GLfloat SpotDirection
[4]; /**< spotlight direction in eye coordinates */
350 GLfloat SpotExponent
;
351 GLfloat SpotCutoff
; /**< in degrees */
352 GLfloat _CosCutoff
; /**< = MAX(0, cos(SpotCutoff)) */
353 GLfloat ConstantAttenuation
;
354 GLfloat LinearAttenuation
;
355 GLfloat QuadraticAttenuation
;
356 GLboolean Enabled
; /**< On/off flag */
359 * \name Derived fields
362 GLbitfield _Flags
; /**< Mask of LIGHT_x bits defined above */
364 GLfloat _Position
[4]; /**< position in eye/obj coordinates */
365 GLfloat _VP_inf_norm
[3]; /**< Norm direction to infinite light */
366 GLfloat _h_inf_norm
[3]; /**< Norm( _VP_inf_norm + <0,0,1> ) */
367 GLfloat _NormSpotDirection
[4]; /**< normalized spotlight direction */
368 GLfloat _VP_inf_spot_attenuation
;
370 GLfloat _MatAmbient
[2][3]; /**< material ambient * light ambient */
371 GLfloat _MatDiffuse
[2][3]; /**< material diffuse * light diffuse */
372 GLfloat _MatSpecular
[2][3]; /**< material spec * light specular */
382 GLfloat Ambient
[4]; /**< ambient color */
383 GLboolean LocalViewer
; /**< Local (or infinite) view point? */
384 GLboolean TwoSide
; /**< Two (or one) sided lighting? */
385 GLenum ColorControl
; /**< either GL_SINGLE_COLOR
386 * or GL_SEPARATE_SPECULAR_COLOR */
391 * Accumulation buffer attribute group (GL_ACCUM_BUFFER_BIT)
393 struct gl_accum_attrib
395 GLfloat ClearColor
[4]; /**< Accumulation buffer clear color */
400 * Used for storing clear color, texture border color, etc.
401 * The float values are typically unclamped.
412 * Color buffer attribute group (GL_COLOR_BUFFER_BIT).
414 struct gl_colorbuffer_attrib
416 GLuint ClearIndex
; /**< Index for glClear */
417 union gl_color_union ClearColor
; /**< Color for glClear, unclamped */
418 GLuint IndexMask
; /**< Color index write mask */
419 GLubyte ColorMask
[MAX_DRAW_BUFFERS
][4]; /**< Each flag is 0xff or 0x0 */
421 GLenum DrawBuffer
[MAX_DRAW_BUFFERS
]; /**< Which buffer to draw into */
424 * \name alpha testing
427 GLboolean AlphaEnabled
; /**< Alpha test enabled flag */
428 GLenum AlphaFunc
; /**< Alpha test function */
429 GLfloat AlphaRefUnclamped
;
430 GLclampf AlphaRef
; /**< Alpha reference value */
437 GLbitfield BlendEnabled
; /**< Per-buffer blend enable flags */
439 /* NOTE: this does _not_ depend on fragment clamping or any other clamping
440 * control, only on the fixed-pointness of the render target.
441 * The query does however depend on fragment color clamping.
443 GLfloat BlendColorUnclamped
[4]; /**< Blending color */
444 GLfloat BlendColor
[4]; /**< Blending color */
448 GLenum SrcRGB
; /**< RGB blend source term */
449 GLenum DstRGB
; /**< RGB blend dest term */
450 GLenum SrcA
; /**< Alpha blend source term */
451 GLenum DstA
; /**< Alpha blend dest term */
452 GLenum EquationRGB
; /**< GL_ADD, GL_SUBTRACT, etc. */
453 GLenum EquationA
; /**< GL_ADD, GL_SUBTRACT, etc. */
455 * Set if any blend factor uses SRC1. Computed at the time blend factors
458 GLboolean _UsesDualSrc
;
459 } Blend
[MAX_DRAW_BUFFERS
];
460 /** Are the blend func terms currently different for each buffer/target? */
461 GLboolean _BlendFuncPerBuffer
;
462 /** Are the blend equations currently different for each buffer/target? */
463 GLboolean _BlendEquationPerBuffer
;
466 * Which advanced blending mode is in use (or BLEND_NONE).
468 * KHR_blend_equation_advanced only allows advanced blending with a single
469 * draw buffer, and NVX_blend_equation_advanced_multi_draw_buffer still
470 * requires all draw buffers to match, so we only need a single value.
472 enum gl_advanced_blend_mode _AdvancedBlendMode
;
474 /** Coherency requested via glEnable(GL_BLEND_ADVANCED_COHERENT_KHR)? */
482 GLboolean IndexLogicOpEnabled
; /**< Color index logic op enabled flag */
483 GLboolean ColorLogicOpEnabled
; /**< RGBA logic op enabled flag */
484 GLenum LogicOp
; /**< Logic operator */
488 GLboolean DitherFlag
; /**< Dither enable flag */
490 GLboolean _ClampFragmentColor
; /** < with GL_FIXED_ONLY_ARB resolved */
491 GLenum ClampFragmentColor
; /**< GL_TRUE, GL_FALSE or GL_FIXED_ONLY_ARB */
492 GLenum ClampReadColor
; /**< GL_TRUE, GL_FALSE or GL_FIXED_ONLY_ARB */
494 GLboolean sRGBEnabled
; /**< Framebuffer sRGB blending/updating requested */
499 * Current attribute group (GL_CURRENT_BIT).
501 struct gl_current_attrib
504 * \name Current vertex attributes (color, texcoords, etc).
505 * \note Values are valid only after FLUSH_VERTICES has been called.
506 * \note Index and Edgeflag current values are stored as floats in the
507 * SIX and SEVEN attribute slots.
508 * \note We need double storage for 64-bit vertex attributes
510 GLfloat Attrib
[VERT_ATTRIB_MAX
][4*2];
513 * \name Current raster position attributes (always up to date after a
516 GLfloat RasterPos
[4];
517 GLfloat RasterDistance
;
518 GLfloat RasterColor
[4];
519 GLfloat RasterSecondaryColor
[4];
520 GLfloat RasterTexCoords
[MAX_TEXTURE_COORD_UNITS
][4];
521 GLboolean RasterPosValid
;
526 * Depth buffer attribute group (GL_DEPTH_BUFFER_BIT).
528 struct gl_depthbuffer_attrib
530 GLenum Func
; /**< Function for depth buffer compare */
531 GLclampd Clear
; /**< Value to clear depth buffer to */
532 GLboolean Test
; /**< Depth buffering enabled flag */
533 GLboolean Mask
; /**< Depth buffer writable? */
534 GLboolean BoundsTest
; /**< GL_EXT_depth_bounds_test */
535 GLfloat BoundsMin
, BoundsMax
;/**< GL_EXT_depth_bounds_test */
540 * Evaluator attribute group (GL_EVAL_BIT).
542 struct gl_eval_attrib
548 GLboolean Map1Color4
;
550 GLboolean Map1Normal
;
551 GLboolean Map1TextureCoord1
;
552 GLboolean Map1TextureCoord2
;
553 GLboolean Map1TextureCoord3
;
554 GLboolean Map1TextureCoord4
;
555 GLboolean Map1Vertex3
;
556 GLboolean Map1Vertex4
;
557 GLboolean Map2Color4
;
559 GLboolean Map2Normal
;
560 GLboolean Map2TextureCoord1
;
561 GLboolean Map2TextureCoord2
;
562 GLboolean Map2TextureCoord3
;
563 GLboolean Map2TextureCoord4
;
564 GLboolean Map2Vertex3
;
565 GLboolean Map2Vertex4
;
566 GLboolean AutoNormal
;
570 * \name Map Grid endpoints and divisions and calculated du values
574 GLfloat MapGrid1u1
, MapGrid1u2
, MapGrid1du
;
575 GLint MapGrid2un
, MapGrid2vn
;
576 GLfloat MapGrid2u1
, MapGrid2u2
, MapGrid2du
;
577 GLfloat MapGrid2v1
, MapGrid2v2
, MapGrid2dv
;
583 * Compressed fog mode.
595 * Fog attribute group (GL_FOG_BIT).
599 GLboolean Enabled
; /**< Fog enabled flag */
600 GLboolean ColorSumEnabled
;
601 uint8_t _PackedMode
; /**< Fog mode as 2 bits */
602 uint8_t _PackedEnabledMode
; /**< Masked CompressedMode */
603 GLfloat ColorUnclamped
[4]; /**< Fog color */
604 GLfloat Color
[4]; /**< Fog color */
605 GLfloat Density
; /**< Density >= 0.0 */
606 GLfloat Start
; /**< Start distance in eye coords */
607 GLfloat End
; /**< End distance in eye coords */
608 GLfloat Index
; /**< Fog index */
609 GLenum Mode
; /**< Fog mode */
610 GLenum FogCoordinateSource
; /**< GL_EXT_fog_coord */
611 GLfloat _Scale
; /**< (End == Start) ? 1.0 : 1.0 / (End - Start) */
612 GLenum FogDistanceMode
; /**< GL_NV_fog_distance */
617 * Hint attribute group (GL_HINT_BIT).
619 * Values are always one of GL_FASTEST, GL_NICEST, or GL_DONT_CARE.
621 struct gl_hint_attrib
623 GLenum PerspectiveCorrection
;
626 GLenum PolygonSmooth
;
628 GLenum TextureCompression
; /**< GL_ARB_texture_compression */
629 GLenum GenerateMipmap
; /**< GL_SGIS_generate_mipmap */
630 GLenum FragmentShaderDerivative
; /**< GL_ARB_fragment_shader */
635 * Lighting attribute group (GL_LIGHT_BIT).
637 struct gl_light_attrib
639 struct gl_light Light
[MAX_LIGHTS
]; /**< Array of light sources */
640 struct gl_lightmodel Model
; /**< Lighting model */
643 * Front and back material values.
644 * Note: must call FLUSH_VERTICES() before using.
646 struct gl_material Material
;
648 GLboolean Enabled
; /**< Lighting enabled flag */
649 GLboolean ColorMaterialEnabled
;
651 GLenum ShadeModel
; /**< GL_FLAT or GL_SMOOTH */
652 GLenum ProvokingVertex
; /**< GL_EXT_provoking_vertex */
653 GLenum ColorMaterialFace
; /**< GL_FRONT, BACK or FRONT_AND_BACK */
654 GLenum ColorMaterialMode
; /**< GL_AMBIENT, GL_DIFFUSE, etc */
655 GLbitfield _ColorMaterialBitmask
; /**< bitmask formed from Face and Mode */
658 GLboolean _ClampVertexColor
;
659 GLenum ClampVertexColor
; /**< GL_TRUE, GL_FALSE, GL_FIXED_ONLY */
662 * Derived state for optimizations:
665 GLbitfield _EnabledLights
; /**< bitmask containing enabled lights */
667 GLboolean _NeedEyeCoords
;
668 GLboolean _NeedVertices
; /**< Use fast shader? */
670 GLfloat _BaseColor
[2][3];
676 * Line attribute group (GL_LINE_BIT).
678 struct gl_line_attrib
680 GLboolean SmoothFlag
; /**< GL_LINE_SMOOTH enabled? */
681 GLboolean StippleFlag
; /**< GL_LINE_STIPPLE enabled? */
682 GLushort StipplePattern
; /**< Stipple pattern */
683 GLint StippleFactor
; /**< Stipple repeat factor */
684 GLfloat Width
; /**< Line width */
689 * Display list attribute group (GL_LIST_BIT).
691 struct gl_list_attrib
698 * Multisample attribute group (GL_MULTISAMPLE_BIT).
700 struct gl_multisample_attrib
703 GLboolean SampleAlphaToCoverage
;
704 GLboolean SampleAlphaToOne
;
705 GLboolean SampleCoverage
;
706 GLboolean SampleCoverageInvert
;
707 GLboolean SampleShading
;
709 /* ARB_texture_multisample / GL3.2 additions */
710 GLboolean SampleMask
;
712 GLfloat SampleCoverageValue
; /**< In range [0, 1] */
713 GLfloat MinSampleShadingValue
; /**< In range [0, 1] */
715 /** The GL spec defines this as an array but >32x MSAA is madness */
716 GLbitfield SampleMaskValue
;
721 * A pixelmap (see glPixelMap)
726 GLfloat Map
[MAX_PIXEL_MAP_TABLE
];
731 * Collection of all pixelmaps
735 struct gl_pixelmap RtoR
; /**< i.e. GL_PIXEL_MAP_R_TO_R */
736 struct gl_pixelmap GtoG
;
737 struct gl_pixelmap BtoB
;
738 struct gl_pixelmap AtoA
;
739 struct gl_pixelmap ItoR
;
740 struct gl_pixelmap ItoG
;
741 struct gl_pixelmap ItoB
;
742 struct gl_pixelmap ItoA
;
743 struct gl_pixelmap ItoI
;
744 struct gl_pixelmap StoS
;
749 * Pixel attribute group (GL_PIXEL_MODE_BIT).
751 struct gl_pixel_attrib
753 GLenum ReadBuffer
; /**< source buffer for glRead/CopyPixels() */
755 /*--- Begin Pixel Transfer State ---*/
756 /* Fields are in the order in which they're applied... */
758 /** Scale & Bias (index shift, offset) */
760 GLfloat RedBias
, RedScale
;
761 GLfloat GreenBias
, GreenScale
;
762 GLfloat BlueBias
, BlueScale
;
763 GLfloat AlphaBias
, AlphaScale
;
764 GLfloat DepthBias
, DepthScale
;
765 GLint IndexShift
, IndexOffset
;
769 /* Note: actual pixel maps are not part of this attrib group */
770 GLboolean MapColorFlag
;
771 GLboolean MapStencilFlag
;
773 /*--- End Pixel Transfer State ---*/
776 GLfloat ZoomX
, ZoomY
;
781 * Point attribute group (GL_POINT_BIT).
783 struct gl_point_attrib
785 GLfloat Size
; /**< User-specified point size */
786 GLfloat Params
[3]; /**< GL_EXT_point_parameters */
787 GLfloat MinSize
, MaxSize
; /**< GL_EXT_point_parameters */
788 GLfloat Threshold
; /**< GL_EXT_point_parameters */
789 GLboolean SmoothFlag
; /**< True if GL_POINT_SMOOTH is enabled */
790 GLboolean _Attenuated
; /**< True if Params != [1, 0, 0] */
791 GLboolean PointSprite
; /**< GL_NV/ARB_point_sprite */
792 GLbitfield CoordReplace
; /**< GL_ARB_point_sprite*/
793 GLenum SpriteRMode
; /**< GL_NV_point_sprite (only!) */
794 GLenum SpriteOrigin
; /**< GL_ARB_point_sprite */
799 * Polygon attribute group (GL_POLYGON_BIT).
801 struct gl_polygon_attrib
803 GLenum FrontFace
; /**< Either GL_CW or GL_CCW */
804 GLenum FrontMode
; /**< Either GL_POINT, GL_LINE or GL_FILL */
805 GLenum BackMode
; /**< Either GL_POINT, GL_LINE or GL_FILL */
806 GLboolean _FrontBit
; /**< 0=GL_CCW, 1=GL_CW */
807 GLboolean CullFlag
; /**< Culling on/off flag */
808 GLboolean SmoothFlag
; /**< True if GL_POLYGON_SMOOTH is enabled */
809 GLboolean StippleFlag
; /**< True if GL_POLYGON_STIPPLE is enabled */
810 GLenum CullFaceMode
; /**< Culling mode GL_FRONT or GL_BACK */
811 GLfloat OffsetFactor
; /**< Polygon offset factor, from user */
812 GLfloat OffsetUnits
; /**< Polygon offset units, from user */
813 GLfloat OffsetClamp
; /**< Polygon offset clamp, from user */
814 GLboolean OffsetPoint
; /**< Offset in GL_POINT mode */
815 GLboolean OffsetLine
; /**< Offset in GL_LINE mode */
816 GLboolean OffsetFill
; /**< Offset in GL_FILL mode */
821 * Scissor attributes (GL_SCISSOR_BIT).
823 struct gl_scissor_rect
825 GLint X
, Y
; /**< Lower left corner of box */
826 GLsizei Width
, Height
; /**< Size of box */
828 struct gl_scissor_attrib
830 GLbitfield EnableFlags
; /**< Scissor test enabled? */
831 struct gl_scissor_rect ScissorArray
[MAX_VIEWPORTS
];
832 GLint NumWindowRects
; /**< Count of enabled window rectangles */
833 GLenum WindowRectMode
; /**< Whether to include or exclude the rects */
834 struct gl_scissor_rect WindowRects
[MAX_WINDOW_RECTANGLES
];
839 * Stencil attribute group (GL_STENCIL_BUFFER_BIT).
841 * Three sets of stencil data are tracked so that OpenGL 2.0,
842 * GL_EXT_stencil_two_side, and GL_ATI_separate_stencil can all be supported
843 * simultaneously. In each of the stencil state arrays, element 0 corresponds
844 * to GL_FRONT. Element 1 corresponds to the OpenGL 2.0 /
845 * GL_ATI_separate_stencil GL_BACK state. Element 2 corresponds to the
846 * GL_EXT_stencil_two_side GL_BACK state.
848 * The derived value \c _BackFace is either 1 or 2 depending on whether or
849 * not GL_STENCIL_TEST_TWO_SIDE_EXT is enabled.
851 * The derived value \c _TestTwoSide is set when the front-face and back-face
852 * stencil state are different.
854 struct gl_stencil_attrib
856 GLboolean Enabled
; /**< Enabled flag */
857 GLboolean TestTwoSide
; /**< GL_EXT_stencil_two_side */
858 GLubyte ActiveFace
; /**< GL_EXT_stencil_two_side (0 or 2) */
859 GLboolean _Enabled
; /**< Enabled and stencil buffer present */
860 GLboolean _WriteEnabled
; /**< _Enabled and non-zero writemasks */
861 GLboolean _TestTwoSide
;
862 GLubyte _BackFace
; /**< Current back stencil state (1 or 2) */
863 GLenum Function
[3]; /**< Stencil function */
864 GLenum FailFunc
[3]; /**< Fail function */
865 GLenum ZPassFunc
[3]; /**< Depth buffer pass function */
866 GLenum ZFailFunc
[3]; /**< Depth buffer fail function */
867 GLint Ref
[3]; /**< Reference value */
868 GLuint ValueMask
[3]; /**< Value mask */
869 GLuint WriteMask
[3]; /**< Write mask */
870 GLuint Clear
; /**< Clear value */
875 * An index for each type of texture object. These correspond to the GL
876 * texture target enums, such as GL_TEXTURE_2D, GL_TEXTURE_CUBE_MAP, etc.
877 * Note: the order is from highest priority to lowest priority.
881 TEXTURE_2D_MULTISAMPLE_INDEX
,
882 TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX
,
883 TEXTURE_CUBE_ARRAY_INDEX
,
884 TEXTURE_BUFFER_INDEX
,
885 TEXTURE_2D_ARRAY_INDEX
,
886 TEXTURE_1D_ARRAY_INDEX
,
887 TEXTURE_EXTERNAL_INDEX
,
898 * Bit flags for each type of texture object
901 #define TEXTURE_2D_MULTISAMPLE_BIT (1 << TEXTURE_2D_MULTISAMPLE_INDEX)
902 #define TEXTURE_2D_MULTISAMPLE_ARRAY_BIT (1 << TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX)
903 #define TEXTURE_CUBE_ARRAY_BIT (1 << TEXTURE_CUBE_ARRAY_INDEX)
904 #define TEXTURE_BUFFER_BIT (1 << TEXTURE_BUFFER_INDEX)
905 #define TEXTURE_2D_ARRAY_BIT (1 << TEXTURE_2D_ARRAY_INDEX)
906 #define TEXTURE_1D_ARRAY_BIT (1 << TEXTURE_1D_ARRAY_INDEX)
907 #define TEXTURE_EXTERNAL_BIT (1 << TEXTURE_EXTERNAL_INDEX)
908 #define TEXTURE_CUBE_BIT (1 << TEXTURE_CUBE_INDEX)
909 #define TEXTURE_3D_BIT (1 << TEXTURE_3D_INDEX)
910 #define TEXTURE_RECT_BIT (1 << TEXTURE_RECT_INDEX)
911 #define TEXTURE_2D_BIT (1 << TEXTURE_2D_INDEX)
912 #define TEXTURE_1D_BIT (1 << TEXTURE_1D_INDEX)
917 * Texture image state. Drivers will typically create a subclass of this
918 * with extra fields for memory buffers, etc.
920 struct gl_texture_image
922 GLint InternalFormat
; /**< Internal format as given by the user */
923 GLenum _BaseFormat
; /**< Either GL_RGB, GL_RGBA, GL_ALPHA,
924 * GL_LUMINANCE, GL_LUMINANCE_ALPHA,
925 * GL_INTENSITY, GL_DEPTH_COMPONENT or
926 * GL_DEPTH_STENCIL_EXT only. Used for
927 * choosing TexEnv arithmetic.
929 mesa_format TexFormat
; /**< The actual texture memory format */
931 GLuint Border
; /**< 0 or 1 */
932 GLuint Width
; /**< = 2^WidthLog2 + 2*Border */
933 GLuint Height
; /**< = 2^HeightLog2 + 2*Border */
934 GLuint Depth
; /**< = 2^DepthLog2 + 2*Border */
935 GLuint Width2
; /**< = Width - 2*Border */
936 GLuint Height2
; /**< = Height - 2*Border */
937 GLuint Depth2
; /**< = Depth - 2*Border */
938 GLuint WidthLog2
; /**< = log2(Width2) */
939 GLuint HeightLog2
; /**< = log2(Height2) */
940 GLuint DepthLog2
; /**< = log2(Depth2) */
941 GLuint MaxNumLevels
; /**< = maximum possible number of mipmap
942 levels, computed from the dimensions */
944 struct gl_texture_object
*TexObject
; /**< Pointer back to parent object */
945 GLuint Level
; /**< Which mipmap level am I? */
946 /** Cube map face: index into gl_texture_object::Image[] array */
949 /** GL_ARB_texture_multisample */
950 GLuint NumSamples
; /**< Sample count, or 0 for non-multisample */
951 GLboolean FixedSampleLocations
; /**< Same sample locations for all pixels? */
956 * Indexes for cube map faces.
971 * Sampler object state. These objects are new with GL_ARB_sampler_objects
972 * and OpenGL 3.3. Legacy texture objects also contain a sampler object.
974 struct gl_sampler_object
979 GLchar
*Label
; /**< GL_KHR_debug */
981 GLenum WrapS
; /**< S-axis texture image wrap mode */
982 GLenum WrapT
; /**< T-axis texture image wrap mode */
983 GLenum WrapR
; /**< R-axis texture image wrap mode */
984 GLenum MinFilter
; /**< minification filter */
985 GLenum MagFilter
; /**< magnification filter */
986 union gl_color_union BorderColor
; /**< Interpreted according to texture format */
987 GLfloat MinLod
; /**< min lambda, OpenGL 1.2 */
988 GLfloat MaxLod
; /**< max lambda, OpenGL 1.2 */
989 GLfloat LodBias
; /**< OpenGL 1.4 */
990 GLfloat MaxAnisotropy
; /**< GL_EXT_texture_filter_anisotropic */
991 GLenum CompareMode
; /**< GL_ARB_shadow */
992 GLenum CompareFunc
; /**< GL_ARB_shadow */
993 GLenum sRGBDecode
; /**< GL_DECODE_EXT or GL_SKIP_DECODE_EXT */
994 GLboolean CubeMapSeamless
; /**< GL_AMD_seamless_cubemap_per_texture */
996 /** GL_ARB_bindless_texture */
997 struct util_dynarray Handles
;
998 bool HandleAllocated
;
1003 * Texture object state. Contains the array of mipmap images, border color,
1004 * wrap modes, filter modes, and shadow/texcompare state.
1006 struct gl_texture_object
1008 mtx_t Mutex
; /**< for thread safety */
1009 GLint RefCount
; /**< reference count */
1010 GLuint Name
; /**< the user-visible texture object ID */
1011 GLchar
*Label
; /**< GL_KHR_debug */
1012 GLenum Target
; /**< GL_TEXTURE_1D, GL_TEXTURE_2D, etc. */
1013 gl_texture_index TargetIndex
; /**< The gl_texture_unit::CurrentTex index.
1014 Only valid when Target is valid. */
1016 struct gl_sampler_object Sampler
;
1018 GLenum DepthMode
; /**< GL_ARB_depth_texture */
1019 bool StencilSampling
; /**< Should we sample stencil instead of depth? */
1021 GLfloat Priority
; /**< in [0,1] */
1022 GLint BaseLevel
; /**< min mipmap level, OpenGL 1.2 */
1023 GLint MaxLevel
; /**< max mipmap level, OpenGL 1.2 */
1024 GLint ImmutableLevels
; /**< ES 3.0 / ARB_texture_view */
1025 GLint _MaxLevel
; /**< actual max mipmap level (q in the spec) */
1026 GLfloat _MaxLambda
; /**< = _MaxLevel - BaseLevel (q - p in spec) */
1027 GLint CropRect
[4]; /**< GL_OES_draw_texture */
1028 GLenum Swizzle
[4]; /**< GL_EXT_texture_swizzle */
1029 GLuint _Swizzle
; /**< same as Swizzle, but SWIZZLE_* format */
1030 GLboolean GenerateMipmap
; /**< GL_SGIS_generate_mipmap */
1031 GLboolean _BaseComplete
; /**< Is the base texture level valid? */
1032 GLboolean _MipmapComplete
; /**< Is the whole mipmap valid? */
1033 GLboolean _IsIntegerFormat
; /**< Does the texture store integer values? */
1034 GLboolean _RenderToTexture
; /**< Any rendering to this texture? */
1035 GLboolean Purgeable
; /**< Is the buffer purgeable under memory
1037 GLboolean Immutable
; /**< GL_ARB_texture_storage */
1038 GLboolean _IsFloat
; /**< GL_OES_float_texture */
1039 GLboolean _IsHalfFloat
; /**< GL_OES_half_float_texture */
1041 GLuint MinLevel
; /**< GL_ARB_texture_view */
1042 GLuint MinLayer
; /**< GL_ARB_texture_view */
1043 GLuint NumLevels
; /**< GL_ARB_texture_view */
1044 GLuint NumLayers
; /**< GL_ARB_texture_view */
1046 /** Actual texture images, indexed by [cube face] and [mipmap level] */
1047 struct gl_texture_image
*Image
[MAX_FACES
][MAX_TEXTURE_LEVELS
];
1049 /** GL_ARB_texture_buffer_object */
1050 struct gl_buffer_object
*BufferObject
;
1051 GLenum BufferObjectFormat
;
1052 /** Equivalent Mesa format for BufferObjectFormat. */
1053 mesa_format _BufferObjectFormat
;
1054 /** GL_ARB_texture_buffer_range */
1055 GLintptr BufferOffset
;
1056 GLsizeiptr BufferSize
; /**< if this is -1, use BufferObject->Size instead */
1058 /** GL_OES_EGL_image_external */
1059 GLint RequiredTextureImageUnits
;
1061 /** GL_ARB_shader_image_load_store */
1062 GLenum ImageFormatCompatibilityType
;
1064 /** GL_ARB_bindless_texture */
1065 struct util_dynarray SamplerHandles
;
1066 struct util_dynarray ImageHandles
;
1067 bool HandleAllocated
;
1071 /** Up to four combiner sources are possible with GL_NV_texture_env_combine4 */
1072 #define MAX_COMBINER_TERMS 4
1076 * Texture combine environment state.
1078 struct gl_tex_env_combine_state
1080 GLenum ModeRGB
; /**< GL_REPLACE, GL_DECAL, GL_ADD, etc. */
1081 GLenum ModeA
; /**< GL_REPLACE, GL_DECAL, GL_ADD, etc. */
1082 /** Source terms: GL_PRIMARY_COLOR, GL_TEXTURE, etc */
1083 GLenum SourceRGB
[MAX_COMBINER_TERMS
];
1084 GLenum SourceA
[MAX_COMBINER_TERMS
];
1085 /** Source operands: GL_SRC_COLOR, GL_ONE_MINUS_SRC_COLOR, etc */
1086 GLenum OperandRGB
[MAX_COMBINER_TERMS
];
1087 GLenum OperandA
[MAX_COMBINER_TERMS
];
1088 GLuint ScaleShiftRGB
; /**< 0, 1 or 2 */
1089 GLuint ScaleShiftA
; /**< 0, 1 or 2 */
1090 GLuint _NumArgsRGB
; /**< Number of inputs used for the RGB combiner */
1091 GLuint _NumArgsA
; /**< Number of inputs used for the A combiner */
1095 /** Compressed TexEnv effective Combine mode */
1096 enum gl_tex_env_mode
1098 TEXENV_MODE_REPLACE
, /* r = a0 */
1099 TEXENV_MODE_MODULATE
, /* r = a0 * a1 */
1100 TEXENV_MODE_ADD
, /* r = a0 + a1 */
1101 TEXENV_MODE_ADD_SIGNED
, /* r = a0 + a1 - 0.5 */
1102 TEXENV_MODE_INTERPOLATE
, /* r = a0 * a2 + a1 * (1 - a2) */
1103 TEXENV_MODE_SUBTRACT
, /* r = a0 - a1 */
1104 TEXENV_MODE_DOT3_RGB
, /* r = a0 . a1 */
1105 TEXENV_MODE_DOT3_RGB_EXT
, /* r = a0 . a1 */
1106 TEXENV_MODE_DOT3_RGBA
, /* r = a0 . a1 */
1107 TEXENV_MODE_DOT3_RGBA_EXT
, /* r = a0 . a1 */
1108 TEXENV_MODE_MODULATE_ADD_ATI
, /* r = a0 * a2 + a1 */
1109 TEXENV_MODE_MODULATE_SIGNED_ADD_ATI
, /* r = a0 * a2 + a1 - 0.5 */
1110 TEXENV_MODE_MODULATE_SUBTRACT_ATI
, /* r = a0 * a2 - a1 */
1111 TEXENV_MODE_ADD_PRODUCTS_NV
, /* r = a0 * a1 + a2 * a3 */
1112 TEXENV_MODE_ADD_PRODUCTS_SIGNED_NV
, /* r = a0 * a1 + a2 * a3 - 0.5 */
1116 /** Compressed TexEnv Combine source */
1117 enum gl_tex_env_source
1119 TEXENV_SRC_TEXTURE0
,
1120 TEXENV_SRC_TEXTURE1
,
1121 TEXENV_SRC_TEXTURE2
,
1122 TEXENV_SRC_TEXTURE3
,
1123 TEXENV_SRC_TEXTURE4
,
1124 TEXENV_SRC_TEXTURE5
,
1125 TEXENV_SRC_TEXTURE6
,
1126 TEXENV_SRC_TEXTURE7
,
1128 TEXENV_SRC_PREVIOUS
,
1129 TEXENV_SRC_PRIMARY_COLOR
,
1130 TEXENV_SRC_CONSTANT
,
1136 /** Compressed TexEnv Combine operand */
1137 enum gl_tex_env_operand
1140 TEXENV_OPR_ONE_MINUS_COLOR
,
1142 TEXENV_OPR_ONE_MINUS_ALPHA
,
1146 /** Compressed TexEnv Combine argument */
1147 struct gl_tex_env_argument
1150 __extension__
uint8_t Source
:4; /**< TEXENV_SRC_x */
1151 __extension__
uint8_t Operand
:2; /**< TEXENV_OPR_x */
1153 uint8_t Source
; /**< SRC_x */
1154 uint8_t Operand
; /**< OPR_x */
1160 * Compressed TexEnv Combine state.
1162 struct gl_tex_env_combine_packed
1164 uint32_t ModeRGB
:4; /**< Effective mode for RGB as 4 bits */
1165 uint32_t ModeA
:4; /**< Effective mode for RGB as 4 bits */
1166 uint32_t ScaleShiftRGB
:2; /**< 0, 1 or 2 */
1167 uint32_t ScaleShiftA
:2; /**< 0, 1 or 2 */
1168 uint32_t NumArgsRGB
:3; /**< Number of inputs used for the RGB combiner */
1169 uint32_t NumArgsA
:3; /**< Number of inputs used for the A combiner */
1170 /** Source arguments in a packed manner */
1171 struct gl_tex_env_argument ArgsRGB
[MAX_COMBINER_TERMS
];
1172 struct gl_tex_env_argument ArgsA
[MAX_COMBINER_TERMS
];
1177 * TexGenEnabled flags.
1184 #define STR_BITS (S_BIT | T_BIT | R_BIT)
1189 * Bit flag versions of the corresponding GL_ constants.
1192 #define TEXGEN_SPHERE_MAP 0x1
1193 #define TEXGEN_OBJ_LINEAR 0x2
1194 #define TEXGEN_EYE_LINEAR 0x4
1195 #define TEXGEN_REFLECTION_MAP_NV 0x8
1196 #define TEXGEN_NORMAL_MAP_NV 0x10
1198 #define TEXGEN_NEED_NORMALS (TEXGEN_SPHERE_MAP | \
1199 TEXGEN_REFLECTION_MAP_NV | \
1200 TEXGEN_NORMAL_MAP_NV)
1201 #define TEXGEN_NEED_EYE_COORD (TEXGEN_SPHERE_MAP | \
1202 TEXGEN_REFLECTION_MAP_NV | \
1203 TEXGEN_NORMAL_MAP_NV | \
1209 /** Tex-gen enabled for texture unit? */
1210 #define ENABLE_TEXGEN(unit) (1 << (unit))
1212 /** Non-identity texture matrix for texture unit? */
1213 #define ENABLE_TEXMAT(unit) (1 << (unit))
1217 * Texture coord generation state.
1221 GLenum Mode
; /**< GL_EYE_LINEAR, GL_SPHERE_MAP, etc */
1222 GLbitfield _ModeBit
; /**< TEXGEN_x bit corresponding to Mode */
1223 GLfloat ObjectPlane
[4];
1224 GLfloat EyePlane
[4];
1229 * Texture unit state. Contains enable flags, texture environment/function/
1230 * combiners, texgen state, and pointers to current texture objects.
1232 struct gl_texture_unit
1234 GLbitfield Enabled
; /**< bitmask of TEXTURE_*_BIT flags */
1236 GLenum EnvMode
; /**< GL_MODULATE, GL_DECAL, GL_BLEND, etc. */
1237 GLclampf EnvColor
[4];
1238 GLfloat EnvColorUnclamped
[4];
1240 struct gl_texgen GenS
;
1241 struct gl_texgen GenT
;
1242 struct gl_texgen GenR
;
1243 struct gl_texgen GenQ
;
1244 GLbitfield TexGenEnabled
; /**< Bitwise-OR of [STRQ]_BIT values */
1245 GLbitfield _GenFlags
; /**< Bitwise-OR of Gen[STRQ]._ModeBit */
1247 GLfloat LodBias
; /**< for biasing mipmap levels */
1249 /** Texture targets that have a non-default texture bound */
1250 GLbitfield _BoundTextures
;
1252 /** Current sampler object (GL_ARB_sampler_objects) */
1253 struct gl_sampler_object
*Sampler
;
1256 * \name GL_EXT_texture_env_combine
1258 struct gl_tex_env_combine_state Combine
;
1261 * Derived state based on \c EnvMode and the \c BaseFormat of the
1262 * currently enabled texture.
1264 struct gl_tex_env_combine_state _EnvMode
;
1267 * Currently enabled combiner state. This will point to either
1268 * \c Combine or \c _EnvMode.
1270 struct gl_tex_env_combine_state
*_CurrentCombine
;
1272 /** Current texture object pointers */
1273 struct gl_texture_object
*CurrentTex
[NUM_TEXTURE_TARGETS
];
1275 /** Points to highest priority, complete and enabled texture object */
1276 struct gl_texture_object
*_Current
;
1278 /** Current compressed TexEnv & Combine state */
1279 struct gl_tex_env_combine_packed _CurrentCombinePacked
;
1284 * Texture attribute group (GL_TEXTURE_BIT).
1286 struct gl_texture_attrib
1288 GLuint CurrentUnit
; /**< GL_ACTIVE_TEXTURE */
1290 /** GL_ARB_seamless_cubemap */
1291 GLboolean CubeMapSeamless
;
1293 struct gl_texture_object
*ProxyTex
[NUM_TEXTURE_TARGETS
];
1295 /** GL_ARB_texture_buffer_object */
1296 struct gl_buffer_object
*BufferObject
;
1298 /** Texture coord units/sets used for fragment texturing */
1299 GLbitfield _EnabledCoordUnits
;
1301 /** Texture coord units that have texgen enabled */
1302 GLbitfield _TexGenEnabled
;
1304 /** Texture coord units that have non-identity matrices */
1305 GLbitfield _TexMatEnabled
;
1307 /** Bitwise-OR of all Texture.Unit[i]._GenFlags */
1308 GLbitfield _GenFlags
;
1310 /** Largest index of a texture unit with _Current != NULL. */
1311 GLint _MaxEnabledTexImageUnit
;
1313 /** Largest index + 1 of texture units that have had any CurrentTex set. */
1314 GLint NumCurrentTexUsed
;
1316 struct gl_texture_unit Unit
[MAX_COMBINED_TEXTURE_IMAGE_UNITS
];
1321 * Data structure representing a single clip plane (e.g. one of the elements
1322 * of the ctx->Transform.EyeUserPlane or ctx->Transform._ClipUserPlane array).
1324 typedef GLfloat gl_clip_plane
[4];
1328 * Transformation attribute group (GL_TRANSFORM_BIT).
1330 struct gl_transform_attrib
1332 GLenum MatrixMode
; /**< Matrix mode */
1333 gl_clip_plane EyeUserPlane
[MAX_CLIP_PLANES
]; /**< User clip planes */
1334 gl_clip_plane _ClipUserPlane
[MAX_CLIP_PLANES
]; /**< derived */
1335 GLbitfield ClipPlanesEnabled
; /**< on/off bitmask */
1336 GLboolean Normalize
; /**< Normalize all normals? */
1337 GLboolean RescaleNormals
; /**< GL_EXT_rescale_normal */
1338 GLboolean RasterPositionUnclipped
; /**< GL_IBM_rasterpos_clip */
1339 GLboolean DepthClamp
; /**< GL_ARB_depth_clamp */
1340 /** GL_ARB_clip_control */
1341 GLenum ClipOrigin
; /**< GL_LOWER_LEFT or GL_UPPER_LEFT */
1342 GLenum ClipDepthMode
; /**< GL_NEGATIVE_ONE_TO_ONE or GL_ZERO_TO_ONE */
1347 * Viewport attribute group (GL_VIEWPORT_BIT).
1349 struct gl_viewport_attrib
1351 GLfloat X
, Y
; /**< position */
1352 GLfloat Width
, Height
; /**< size */
1353 GLdouble Near
, Far
; /**< Depth buffer range */
1362 } gl_map_buffer_index
;
1366 * Fields describing a mapped buffer range.
1368 struct gl_buffer_mapping
{
1369 GLbitfield AccessFlags
; /**< Mask of GL_MAP_x_BIT flags */
1370 GLvoid
*Pointer
; /**< User-space address of mapping */
1371 GLintptr Offset
; /**< Mapped offset */
1372 GLsizeiptr Length
; /**< Mapped length */
1377 * Usages we've seen for a buffer object.
1380 USAGE_UNIFORM_BUFFER
= 0x1,
1381 USAGE_TEXTURE_BUFFER
= 0x2,
1382 USAGE_ATOMIC_COUNTER_BUFFER
= 0x4,
1383 USAGE_SHADER_STORAGE_BUFFER
= 0x8,
1384 USAGE_TRANSFORM_FEEDBACK_BUFFER
= 0x10,
1385 USAGE_PIXEL_PACK_BUFFER
= 0x20,
1386 USAGE_DISABLE_MINMAX_CACHE
= 0x40,
1391 * GL_ARB_vertex/pixel_buffer_object buffer object
1393 struct gl_buffer_object
1398 GLchar
*Label
; /**< GL_KHR_debug */
1399 GLenum Usage
; /**< GL_STREAM_DRAW_ARB, GL_STREAM_READ_ARB, etc. */
1400 GLbitfield StorageFlags
; /**< GL_MAP_PERSISTENT_BIT, etc. */
1401 GLsizeiptrARB Size
; /**< Size of buffer storage in bytes */
1402 GLubyte
*Data
; /**< Location of storage either in RAM or VRAM. */
1403 GLboolean DeletePending
; /**< true if buffer object is removed from the hash */
1404 GLboolean Written
; /**< Ever written to? (for debugging) */
1405 GLboolean Purgeable
; /**< Is the buffer purgeable under memory pressure? */
1406 GLboolean Immutable
; /**< GL_ARB_buffer_storage */
1407 gl_buffer_usage UsageHistory
; /**< How has this buffer been used so far? */
1409 /** Counters used for buffer usage warnings */
1410 GLuint NumSubDataCalls
;
1411 GLuint NumMapBufferWriteCalls
;
1413 struct gl_buffer_mapping Mappings
[MAP_COUNT
];
1415 /** Memoization of min/max index computations for static index buffers */
1416 struct hash_table
*MinMaxCache
;
1417 unsigned MinMaxCacheHitIndices
;
1418 unsigned MinMaxCacheMissIndices
;
1419 bool MinMaxCacheDirty
;
1421 bool HandleAllocated
; /**< GL_ARB_bindless_texture */
1426 * Client pixel packing/unpacking attributes
1428 struct gl_pixelstore_attrib
1436 GLboolean SwapBytes
;
1438 GLboolean Invert
; /**< GL_MESA_pack_invert */
1439 GLint CompressedBlockWidth
; /**< GL_ARB_compressed_texture_pixel_storage */
1440 GLint CompressedBlockHeight
;
1441 GLint CompressedBlockDepth
;
1442 GLint CompressedBlockSize
;
1443 struct gl_buffer_object
*BufferObj
; /**< GL_ARB_pixel_buffer_object */
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 GLint Size
; /**< components per element (1,2,3,4) */
1455 GLenum Type
; /**< datatype: GL_FLOAT, GL_INT, etc */
1456 GLenum Format
; /**< default: GL_RGBA, but may be GL_BGRA */
1457 GLsizei StrideB
; /**< actual stride in bytes */
1458 GLuint _ElementSize
; /**< size of each element in bytes */
1459 const GLubyte
*Ptr
; /**< Points to array data */
1460 GLboolean Normalized
; /**< GL_ARB_vertex_program */
1461 GLboolean Integer
; /**< Integer-valued? */
1462 GLboolean Doubles
; /**< double precision values are not converted to floats */
1463 GLuint InstanceDivisor
; /**< GL_ARB_instanced_arrays */
1465 struct gl_buffer_object
*BufferObj
;/**< GL_ARB_vertex_buffer_object */
1470 * Attributes to describe a vertex array.
1472 * Contains the size, type, format and normalization flag,
1473 * along with the index of a vertex buffer binding point.
1475 * Note that the Stride field corresponds to VERTEX_ATTRIB_ARRAY_STRIDE
1476 * and is only present for backwards compatibility reasons.
1477 * Rendering always uses VERTEX_BINDING_STRIDE.
1478 * The gl*Pointer() functions will set VERTEX_ATTRIB_ARRAY_STRIDE
1479 * and VERTEX_BINDING_STRIDE to the same value, while
1480 * glBindVertexBuffer() will only set VERTEX_BINDING_STRIDE.
1482 struct gl_array_attributes
1484 GLint Size
; /**< Components per element (1,2,3,4) */
1485 GLenum Type
; /**< Datatype: GL_FLOAT, GL_INT, etc */
1486 GLenum Format
; /**< Default: GL_RGBA, but may be GL_BGRA */
1487 GLsizei Stride
; /**< Stride as specified with gl*Pointer() */
1488 const GLubyte
*Ptr
; /**< Points to client array data. Not used when a VBO is bound */
1489 GLintptr RelativeOffset
; /**< Offset of the first element relative to the binding offset */
1490 GLboolean Enabled
; /**< Whether the array is enabled */
1491 GLboolean Normalized
; /**< Fixed-point values are normalized when converted to floats */
1492 GLboolean Integer
; /**< Fixed-point values are not converted to floats */
1493 GLboolean Doubles
; /**< double precision values are not converted to floats */
1494 GLuint _ElementSize
; /**< Size of each element in bytes */
1495 GLuint BufferBindingIndex
; /**< Vertex buffer binding */
1500 * This describes the buffer object used for a vertex array (or
1501 * multiple vertex arrays). If BufferObj points to the default/null
1502 * buffer object, then the vertex array lives in user memory and not a VBO.
1504 struct gl_vertex_buffer_binding
1506 GLintptr Offset
; /**< User-specified offset */
1507 GLsizei Stride
; /**< User-specified stride */
1508 GLuint InstanceDivisor
; /**< GL_ARB_instanced_arrays */
1509 struct gl_buffer_object
*BufferObj
; /**< GL_ARB_vertex_buffer_object */
1510 GLbitfield64 _BoundArrays
; /**< Arrays bound to this binding point */
1515 * A representation of "Vertex Array Objects" (VAOs) from OpenGL 3.1+ /
1516 * the GL_ARB_vertex_array_object extension.
1518 struct gl_vertex_array_object
1520 /** Name of the VAO as received from glGenVertexArray. */
1525 GLchar
*Label
; /**< GL_KHR_debug */
1528 * Has this array object been bound?
1530 GLboolean EverBound
;
1533 * Derived vertex attribute arrays
1535 * This is a legacy data structure created from gl_vertex_attrib_array and
1536 * gl_vertex_buffer_binding, for compatibility with existing driver code.
1538 struct gl_vertex_array _VertexAttrib
[VERT_ATTRIB_MAX
];
1540 /** Vertex attribute arrays */
1541 struct gl_array_attributes VertexAttrib
[VERT_ATTRIB_MAX
];
1543 /** Vertex buffer bindings */
1544 struct gl_vertex_buffer_binding BufferBinding
[VERT_ATTRIB_MAX
];
1546 /** Mask indicating which vertex arrays have vertex buffer associated. */
1547 GLbitfield64 VertexAttribBufferMask
;
1549 /** Mask of VERT_BIT_* values indicating which arrays are enabled */
1550 GLbitfield64 _Enabled
;
1552 /** Mask of VERT_BIT_* values indicating changed/dirty arrays */
1553 GLbitfield64 NewArrays
;
1555 /** The index buffer (also known as the element array buffer in OpenGL). */
1556 struct gl_buffer_object
*IndexBufferObj
;
1560 /** Used to signal when transitioning from one kind of drawing method
1564 DRAW_NONE
, /**< Initial value only */
1571 * Enum for the OpenGL APIs we know about and may support.
1573 * NOTE: This must match the api_enum table in
1574 * src/mesa/main/get_hash_generator.py
1578 API_OPENGL_COMPAT
, /* legacy / compatibility contexts */
1582 API_OPENGL_LAST
= API_OPENGL_CORE
1586 * Vertex array state
1588 struct gl_array_attrib
1590 /** Currently bound array object. */
1591 struct gl_vertex_array_object
*VAO
;
1593 /** The default vertex array object */
1594 struct gl_vertex_array_object
*DefaultVAO
;
1596 /** The last VAO accessed by a DSA function */
1597 struct gl_vertex_array_object
*LastLookedUpVAO
;
1599 /** Array objects (GL_ARB_vertex_array_object) */
1600 struct _mesa_HashTable
*Objects
;
1602 GLint ActiveTexture
; /**< Client Active Texture */
1603 GLuint LockFirst
; /**< GL_EXT_compiled_vertex_array */
1604 GLuint LockCount
; /**< GL_EXT_compiled_vertex_array */
1607 * \name Primitive restart controls
1609 * Primitive restart is enabled if either \c PrimitiveRestart or
1610 * \c PrimitiveRestartFixedIndex is set.
1613 GLboolean PrimitiveRestart
;
1614 GLboolean PrimitiveRestartFixedIndex
;
1615 GLboolean _PrimitiveRestart
;
1616 GLuint RestartIndex
;
1619 /** One of the DRAW_xxx flags, not consumed by drivers */
1620 gl_draw_method DrawMethod
;
1622 /* GL_ARB_vertex_buffer_object */
1623 struct gl_buffer_object
*ArrayBufferObj
;
1626 * Vertex arrays as consumed by a driver.
1627 * The array pointer is set up only by the VBO module.
1629 const struct gl_vertex_array
**_DrawArrays
; /**< 0..VERT_ATTRIB_MAX-1 */
1631 /** Legal array datatypes and the API for which they have been computed */
1632 GLbitfield LegalTypesMask
;
1633 gl_api LegalTypesMaskAPI
;
1638 * Feedback buffer state
1643 GLbitfield _Mask
; /**< FB_* bits */
1651 * Selection buffer state
1655 GLuint
*Buffer
; /**< selection buffer */
1656 GLuint BufferSize
; /**< size of the selection buffer */
1657 GLuint BufferCount
; /**< number of values in the selection buffer */
1658 GLuint Hits
; /**< number of records in the selection buffer */
1659 GLuint NameStackDepth
; /**< name stack depth */
1660 GLuint NameStack
[MAX_NAME_STACK_DEPTH
]; /**< name stack */
1661 GLboolean HitFlag
; /**< hit flag */
1662 GLfloat HitMinZ
; /**< minimum hit depth */
1663 GLfloat HitMaxZ
; /**< maximum hit depth */
1668 * 1-D Evaluator control points
1672 GLuint Order
; /**< Number of control points */
1673 GLfloat u1
, u2
, du
; /**< u1, u2, 1.0/(u2-u1) */
1674 GLfloat
*Points
; /**< Points to contiguous control points */
1679 * 2-D Evaluator control points
1683 GLuint Uorder
; /**< Number of control points in U dimension */
1684 GLuint Vorder
; /**< Number of control points in V dimension */
1687 GLfloat
*Points
; /**< Points to contiguous control points */
1692 * All evaluator control point state
1694 struct gl_evaluators
1700 struct gl_1d_map Map1Vertex3
;
1701 struct gl_1d_map Map1Vertex4
;
1702 struct gl_1d_map Map1Index
;
1703 struct gl_1d_map Map1Color4
;
1704 struct gl_1d_map Map1Normal
;
1705 struct gl_1d_map Map1Texture1
;
1706 struct gl_1d_map Map1Texture2
;
1707 struct gl_1d_map Map1Texture3
;
1708 struct gl_1d_map Map1Texture4
;
1715 struct gl_2d_map Map2Vertex3
;
1716 struct gl_2d_map Map2Vertex4
;
1717 struct gl_2d_map Map2Index
;
1718 struct gl_2d_map Map2Color4
;
1719 struct gl_2d_map Map2Normal
;
1720 struct gl_2d_map Map2Texture1
;
1721 struct gl_2d_map Map2Texture2
;
1722 struct gl_2d_map Map2Texture3
;
1723 struct gl_2d_map Map2Texture4
;
1728 struct gl_transform_feedback_varying_info
1739 * Per-output info vertex shaders for transform feedback.
1741 struct gl_transform_feedback_output
1743 uint32_t OutputRegister
;
1744 uint32_t OutputBuffer
;
1745 uint32_t NumComponents
;
1748 /** offset (in DWORDs) of this output within the interleaved structure */
1752 * Offset into the output register of the data to output. For example,
1753 * if NumComponents is 2 and ComponentOffset is 1, then the data to
1754 * offset is in the y and z components of the output register.
1756 uint32_t ComponentOffset
;
1760 struct gl_transform_feedback_buffer
1764 uint32_t NumVaryings
;
1767 * Total number of components stored in each buffer. This may be used by
1768 * hardware back-ends to determine the correct stride when interleaving
1769 * multiple transform feedback outputs in the same buffer.
1774 * Which transform feedback stream this buffer binding is associated with.
1780 /** Post-link transform feedback info. */
1781 struct gl_transform_feedback_info
1783 unsigned NumOutputs
;
1785 /* Bitmask of active buffer indices. */
1786 unsigned ActiveBuffers
;
1788 struct gl_transform_feedback_output
*Outputs
;
1790 /** Transform feedback varyings used for the linking of this shader program.
1792 * Use for glGetTransformFeedbackVarying().
1794 struct gl_transform_feedback_varying_info
*Varyings
;
1797 struct gl_transform_feedback_buffer Buffers
[MAX_FEEDBACK_BUFFERS
];
1802 * Transform feedback object state
1804 struct gl_transform_feedback_object
1806 GLuint Name
; /**< AKA the object ID */
1808 GLchar
*Label
; /**< GL_KHR_debug */
1809 GLboolean Active
; /**< Is transform feedback enabled? */
1810 GLboolean Paused
; /**< Is transform feedback paused? */
1811 GLboolean EndedAnytime
; /**< Has EndTransformFeedback been called
1813 GLboolean EverBound
; /**< Has this object been bound? */
1816 * GLES: if Active is true, remaining number of primitives which can be
1817 * rendered without overflow. This is necessary to track because GLES
1818 * requires us to generate INVALID_OPERATION if a call to glDrawArrays or
1819 * glDrawArraysInstanced would overflow transform feedback buffers.
1820 * Undefined if Active is false.
1822 * Not tracked for desktop GL since it's unnecessary.
1824 unsigned GlesRemainingPrims
;
1827 * The program active when BeginTransformFeedback() was called.
1828 * When active and unpaused, this equals ctx->Shader.CurrentProgram[stage],
1829 * where stage is the pipeline stage that is the source of data for
1830 * transform feedback.
1832 struct gl_program
*program
;
1834 /** The feedback buffers */
1835 GLuint BufferNames
[MAX_FEEDBACK_BUFFERS
];
1836 struct gl_buffer_object
*Buffers
[MAX_FEEDBACK_BUFFERS
];
1838 /** Start of feedback data in dest buffer */
1839 GLintptr Offset
[MAX_FEEDBACK_BUFFERS
];
1842 * Max data to put into dest buffer (in bytes). Computed based on
1843 * RequestedSize and the actual size of the buffer.
1845 GLsizeiptr Size
[MAX_FEEDBACK_BUFFERS
];
1848 * Size that was specified when the buffer was bound. If the buffer was
1849 * bound with glBindBufferBase() or glBindBufferOffsetEXT(), this value is
1852 GLsizeiptr RequestedSize
[MAX_FEEDBACK_BUFFERS
];
1857 * Context state for transform feedback.
1859 struct gl_transform_feedback_state
1861 GLenum Mode
; /**< GL_POINTS, GL_LINES or GL_TRIANGLES */
1863 /** The general binding point (GL_TRANSFORM_FEEDBACK_BUFFER) */
1864 struct gl_buffer_object
*CurrentBuffer
;
1866 /** The table of all transform feedback objects */
1867 struct _mesa_HashTable
*Objects
;
1869 /** The current xform-fb object (GL_TRANSFORM_FEEDBACK_BINDING) */
1870 struct gl_transform_feedback_object
*CurrentObject
;
1872 /** The default xform-fb object (Name==0) */
1873 struct gl_transform_feedback_object
*DefaultObject
;
1878 * A "performance monitor" as described in AMD_performance_monitor.
1880 struct gl_perf_monitor_object
1884 /** True if the monitor is currently active (Begin called but not End). */
1888 * True if the monitor has ended.
1890 * This is distinct from !Active because it may never have began.
1895 * A list of groups with currently active counters.
1897 * ActiveGroups[g] == n if there are n counters active from group 'g'.
1899 unsigned *ActiveGroups
;
1902 * An array of bitsets, subscripted by group ID, then indexed by counter ID.
1904 * Checking whether counter 'c' in group 'g' is active can be done via:
1906 * BITSET_TEST(ActiveCounters[g], c)
1908 GLuint
**ActiveCounters
;
1912 union gl_perf_monitor_counter_value
1920 struct gl_perf_monitor_counter
1922 /** Human readable name for the counter. */
1926 * Data type of the counter. Valid values are FLOAT, UNSIGNED_INT,
1927 * UNSIGNED_INT64_AMD, and PERCENTAGE_AMD.
1931 /** Minimum counter value. */
1932 union gl_perf_monitor_counter_value Minimum
;
1934 /** Maximum counter value. */
1935 union gl_perf_monitor_counter_value Maximum
;
1939 struct gl_perf_monitor_group
1941 /** Human readable name for the group. */
1945 * Maximum number of counters in this group which can be active at the
1948 GLuint MaxActiveCounters
;
1950 /** Array of counters within this group. */
1951 const struct gl_perf_monitor_counter
*Counters
;
1957 * A query object instance as described in INTEL_performance_query.
1959 * NB: We want to keep this and the corresponding backend structure
1960 * relatively lean considering that applications may expect to
1961 * allocate enough objects to be able to query around all draw calls
1964 struct gl_perf_query_object
1966 GLuint Id
; /**< hash table ID/name */
1967 unsigned Used
:1; /**< has been used for 1 or more queries */
1968 unsigned Active
:1; /**< inside Begin/EndPerfQuery */
1969 unsigned Ready
:1; /**< result is ready? */
1974 * Context state for AMD_performance_monitor.
1976 struct gl_perf_monitor_state
1978 /** Array of performance monitor groups (indexed by group ID) */
1979 const struct gl_perf_monitor_group
*Groups
;
1982 /** The table of all performance monitors. */
1983 struct _mesa_HashTable
*Monitors
;
1988 * Context state for INTEL_performance_query.
1990 struct gl_perf_query_state
1992 struct _mesa_HashTable
*Objects
; /**< The table of all performance query objects */
1997 * A bindless sampler object.
1999 struct gl_bindless_sampler
2001 /** Texture unit (set by glUniform1()). */
2004 /** Texture Target (TEXTURE_1D/2D/3D/etc_INDEX). */
2005 gl_texture_index target
;
2007 /** Whether this bindless sampler is bound to a unit. */
2010 /** Pointer to the base of the data. */
2015 * A bindless image object.
2017 struct gl_bindless_image
2019 /** Image unit (set by glUniform1()). */
2022 /** Access qualifier (GL_READ_WRITE, GL_READ_ONLY, GL_WRITE_ONLY) */
2025 /** Whether this bindless image is bound to a unit. */
2028 /** Pointer to the base of the data. */
2033 * Names of the various vertex/fragment program register files, etc.
2035 * NOTE: first four tokens must fit into 2 bits (see t_vb_arbprogram.c)
2036 * All values should fit in a 4-bit field.
2038 * NOTE: PROGRAM_STATE_VAR, PROGRAM_CONSTANT, and PROGRAM_UNIFORM can all be
2039 * considered to be "uniform" variables since they can only be set outside
2040 * glBegin/End. They're also all stored in the same Parameters array.
2044 PROGRAM_TEMPORARY
, /**< machine->Temporary[] */
2045 PROGRAM_ARRAY
, /**< Arrays & Matrixes */
2046 PROGRAM_INPUT
, /**< machine->Inputs[] */
2047 PROGRAM_OUTPUT
, /**< machine->Outputs[] */
2048 PROGRAM_STATE_VAR
, /**< gl_program->Parameters[] */
2049 PROGRAM_CONSTANT
, /**< gl_program->Parameters[] */
2050 PROGRAM_UNIFORM
, /**< gl_program->Parameters[] */
2051 PROGRAM_WRITE_ONLY
, /**< A dummy, write-only register */
2052 PROGRAM_ADDRESS
, /**< machine->AddressReg */
2053 PROGRAM_SAMPLER
, /**< for shader samplers, compile-time only */
2054 PROGRAM_SYSTEM_VALUE
,/**< InstanceId, PrimitiveID, etc. */
2055 PROGRAM_UNDEFINED
, /**< Invalid/TBD value */
2056 PROGRAM_IMMEDIATE
, /**< Immediate value, used by TGSI */
2057 PROGRAM_BUFFER
, /**< for shader buffers, compile-time only */
2058 PROGRAM_MEMORY
, /**< for shared, global and local memory */
2059 PROGRAM_IMAGE
, /**< for shader images, compile-time only */
2065 * Base class for any kind of program object
2069 /** FIXME: This must be first until we split shader_info from nir_shader */
2070 struct shader_info info
;
2074 GLubyte
*String
; /**< Null-terminated program text */
2076 GLenum Target
; /**< GL_VERTEX/FRAGMENT_PROGRAM_ARB, GL_GEOMETRY_PROGRAM_NV */
2077 GLenum Format
; /**< String encoding format */
2079 GLboolean _Used
; /**< Ever used for drawing? Used for debugging */
2081 struct nir_shader
*nir
;
2083 bool is_arb_asm
; /** Is this an ARB assembly-style program */
2085 /** Is this program written to on disk shader cache */
2086 bool program_written_to_cache
;
2088 GLbitfield64 SecondaryOutputsWritten
; /**< Subset of OutputsWritten outputs written with non-zero index. */
2089 GLbitfield TexturesUsed
[MAX_COMBINED_TEXTURE_IMAGE_UNITS
]; /**< TEXTURE_x_BIT bitmask */
2090 GLbitfield SamplersUsed
; /**< Bitfield of which samplers are used */
2091 GLbitfield ShadowSamplers
; /**< Texture units used for shadow sampling. */
2092 GLbitfield ExternalSamplersUsed
; /**< Texture units used for samplerExternalOES */
2094 /* Fragement shader only fields */
2095 GLboolean OriginUpperLeft
;
2096 GLboolean PixelCenterInteger
;
2098 /** Named parameters, constants, etc. from program text */
2099 struct gl_program_parameter_list
*Parameters
;
2101 /** Map from sampler unit to texture unit (set by glUniform1i()) */
2102 GLubyte SamplerUnits
[MAX_SAMPLERS
];
2104 /* FIXME: We should be able to make this struct a union. However some
2105 * drivers (i915/fragment_programs, swrast/prog_execute) mix the use of
2106 * these fields, we should fix this.
2109 /** Fields used by GLSL programs */
2111 /** Data shared by gl_program and gl_shader_program */
2112 struct gl_shader_program_data
*data
;
2114 struct gl_active_atomic_buffer
**AtomicBuffers
;
2116 /** Post-link transform feedback info. */
2117 struct gl_transform_feedback_info
*LinkedTransformFeedback
;
2120 * Number of types for subroutine uniforms.
2122 GLuint NumSubroutineUniformTypes
;
2125 * Subroutine uniform remap table
2126 * based on the program level uniform remap table.
2128 GLuint NumSubroutineUniforms
; /* non-sparse total */
2129 GLuint NumSubroutineUniformRemapTable
;
2130 struct gl_uniform_storage
**SubroutineUniformRemapTable
;
2133 * Num of subroutine functions for this stage and storage for them.
2135 GLuint NumSubroutineFunctions
;
2136 GLuint MaxSubroutineFunctionIndex
;
2137 struct gl_subroutine_function
*SubroutineFunctions
;
2140 * Map from image uniform index to image unit (set by glUniform1i())
2142 * An image uniform index is associated with each image uniform by
2143 * the linker. The image index associated with each uniform is
2144 * stored in the \c gl_uniform_storage::image field.
2146 GLubyte ImageUnits
[MAX_IMAGE_UNIFORMS
];
2149 * Access qualifier specified in the shader for each image uniform
2150 * index. Either \c GL_READ_ONLY, \c GL_WRITE_ONLY or \c
2153 * It may be different, though only more strict than the value of
2154 * \c gl_image_unit::Access for the corresponding image unit.
2156 GLenum ImageAccess
[MAX_IMAGE_UNIFORMS
];
2158 struct gl_uniform_block
**UniformBlocks
;
2159 struct gl_uniform_block
**ShaderStorageBlocks
;
2161 /** Which texture target is being sampled
2162 * (TEXTURE_1D/2D/3D/etc_INDEX)
2164 gl_texture_index SamplerTargets
[MAX_SAMPLERS
];
2167 * Number of samplers declared with the bindless_sampler layout
2168 * qualifier as specified by ARB_bindless_texture.
2170 GLuint NumBindlessSamplers
;
2171 GLboolean HasBoundBindlessSampler
;
2172 struct gl_bindless_sampler
*BindlessSamplers
;
2175 * Number of images declared with the bindless_image layout qualifier
2176 * as specified by ARB_bindless_texture.
2178 GLuint NumBindlessImages
;
2179 GLboolean HasBoundBindlessImage
;
2180 struct gl_bindless_image
*BindlessImages
;
2185 * A bitmask of gl_advanced_blend_mode values
2187 GLbitfield BlendSupport
;
2192 /** ARB assembly-style program fields */
2194 struct prog_instruction
*Instructions
;
2197 * Local parameters used by the program.
2199 * It's dynamically allocated because it is rarely used (just
2200 * assembly-style programs), and MAX_PROGRAM_LOCAL_PARAMS entries
2201 * once it's allocated.
2203 GLfloat (*LocalParams
)[4];
2205 /** Bitmask of which register files are read/written with indirect
2206 * addressing. Mask of (1 << PROGRAM_x) bits.
2208 GLbitfield IndirectRegisterFiles
;
2210 /** Logical counts */
2212 GLuint NumInstructions
;
2213 GLuint NumTemporaries
;
2214 GLuint NumParameters
;
2215 GLuint NumAttributes
;
2216 GLuint NumAddressRegs
;
2217 GLuint NumAluInstructions
;
2218 GLuint NumTexInstructions
;
2219 GLuint NumTexIndirections
;
2221 /** Native, actual h/w counts */
2223 GLuint NumNativeInstructions
;
2224 GLuint NumNativeTemporaries
;
2225 GLuint NumNativeParameters
;
2226 GLuint NumNativeAttributes
;
2227 GLuint NumNativeAddressRegs
;
2228 GLuint NumNativeAluInstructions
;
2229 GLuint NumNativeTexInstructions
;
2230 GLuint NumNativeTexIndirections
;
2233 /** Used by ARB assembly-style programs. Can only be true for vertex
2236 GLboolean IsPositionInvariant
;
2243 * State common to vertex and fragment programs.
2245 struct gl_program_state
2247 GLint ErrorPos
; /* GL_PROGRAM_ERROR_POSITION_ARB/NV */
2248 const char *ErrorString
; /* GL_PROGRAM_ERROR_STRING_ARB/NV */
2253 * Context state for vertex programs.
2255 struct gl_vertex_program_state
2257 GLboolean Enabled
; /**< User-set GL_VERTEX_PROGRAM_ARB/NV flag */
2258 GLboolean _Enabled
; /**< Enabled and _valid_ user program? */
2259 GLboolean PointSizeEnabled
; /**< GL_VERTEX_PROGRAM_POINT_SIZE_ARB/NV */
2260 GLboolean TwoSideEnabled
; /**< GL_VERTEX_PROGRAM_TWO_SIDE_ARB/NV */
2261 /** Computed two sided lighting for fixed function/programs. */
2262 GLboolean _TwoSideEnabled
;
2263 struct gl_program
*Current
; /**< User-bound vertex program */
2265 /** Currently enabled and valid vertex program (including internal
2266 * programs, user-defined vertex programs and GLSL vertex shaders).
2267 * This is the program we must use when rendering.
2269 struct gl_program
*_Current
;
2271 GLfloat Parameters
[MAX_PROGRAM_ENV_PARAMS
][4]; /**< Env params */
2273 /** Should fixed-function T&L be implemented with a vertex prog? */
2274 GLboolean _MaintainTnlProgram
;
2276 /** Program to emulate fixed-function T&L (see above) */
2277 struct gl_program
*_TnlProgram
;
2279 /** Cache of fixed-function programs */
2280 struct gl_program_cache
*Cache
;
2282 GLboolean _Overriden
;
2286 * Context state for tessellation control programs.
2288 struct gl_tess_ctrl_program_state
2290 /** Currently bound and valid shader. */
2291 struct gl_program
*_Current
;
2293 GLint patch_vertices
;
2294 GLfloat patch_default_outer_level
[4];
2295 GLfloat patch_default_inner_level
[2];
2299 * Context state for tessellation evaluation programs.
2301 struct gl_tess_eval_program_state
2303 /** Currently bound and valid shader. */
2304 struct gl_program
*_Current
;
2308 * Context state for geometry programs.
2310 struct gl_geometry_program_state
2312 /** Currently enabled and valid program (including internal programs
2313 * and compiled shader programs).
2315 struct gl_program
*_Current
;
2319 * Context state for fragment programs.
2321 struct gl_fragment_program_state
2323 GLboolean Enabled
; /**< User-set fragment program enable flag */
2324 GLboolean _Enabled
; /**< Enabled and _valid_ user program? */
2325 struct gl_program
*Current
; /**< User-bound fragment program */
2327 /** Currently enabled and valid fragment program (including internal
2328 * programs, user-defined fragment programs and GLSL fragment shaders).
2329 * This is the program we must use when rendering.
2331 struct gl_program
*_Current
;
2333 GLfloat Parameters
[MAX_PROGRAM_ENV_PARAMS
][4]; /**< Env params */
2335 /** Should fixed-function texturing be implemented with a fragment prog? */
2336 GLboolean _MaintainTexEnvProgram
;
2338 /** Program to emulate fixed-function texture env/combine (see above) */
2339 struct gl_program
*_TexEnvProgram
;
2341 /** Cache of fixed-function programs */
2342 struct gl_program_cache
*Cache
;
2347 * Context state for compute programs.
2349 struct gl_compute_program_state
2351 /** Currently enabled and valid program (including internal programs
2352 * and compiled shader programs).
2354 struct gl_program
*_Current
;
2359 * ATI_fragment_shader runtime state
2362 struct atifs_instruction
;
2363 struct atifs_setupinst
;
2366 * ATI fragment shader
2368 struct ati_fragment_shader
2372 struct atifs_instruction
*Instructions
[2];
2373 struct atifs_setupinst
*SetupInst
[2];
2374 GLfloat Constants
[8][4];
2375 GLbitfield LocalConstDef
; /**< Indicates which constants have been set */
2376 GLubyte numArithInstr
[2];
2377 GLubyte regsAssigned
[2];
2378 GLubyte NumPasses
; /**< 1 or 2 */
2380 GLubyte last_optype
;
2381 GLboolean interpinp1
;
2384 struct gl_program
*Program
;
2388 * Context state for GL_ATI_fragment_shader
2390 struct gl_ati_fragment_shader_state
2393 GLboolean _Enabled
; /**< enabled and valid shader? */
2394 GLboolean Compiling
;
2395 GLfloat GlobalConstants
[8][4];
2396 struct ati_fragment_shader
*Current
;
2400 * Shader subroutine function definition
2402 struct gl_subroutine_function
2406 int num_compat_types
;
2407 const struct glsl_type
**types
;
2411 * Shader information needed by both gl_shader and gl_linked shader.
2413 struct gl_shader_info
2416 * Tessellation Control shader state from layout qualifiers.
2420 * 0 - vertices not declared in shader, or
2421 * 1 .. GL_MAX_PATCH_VERTICES
2427 * Tessellation Evaluation shader state from layout qualifiers.
2431 * GL_TRIANGLES, GL_QUADS, GL_ISOLINES or PRIM_UNKNOWN if it's not set
2434 GLenum PrimitiveMode
;
2436 enum gl_tess_spacing Spacing
;
2439 * GL_CW, GL_CCW, or 0 if it's not set in this shader.
2443 * 1, 0, or -1 if it's not set in this shader.
2449 * Geometry shader state from GLSL 1.50 layout qualifiers.
2454 * 0 - Invocations count not declared in shader, or
2455 * 1 .. MAX_GEOMETRY_SHADER_INVOCATIONS
2459 * GL_POINTS, GL_LINES, GL_LINES_ADJACENCY, GL_TRIANGLES, or
2460 * GL_TRIANGLES_ADJACENCY, or PRIM_UNKNOWN if it's not set in this
2465 * GL_POINTS, GL_LINE_STRIP or GL_TRIANGLE_STRIP, or PRIM_UNKNOWN if
2466 * it's not set in this shader.
2472 * Compute shader state from ARB_compute_shader and
2473 * ARB_compute_variable_group_size layout qualifiers.
2477 * Size specified using local_size_{x,y,z}, or all 0's to indicate that
2478 * it's not set in this shader.
2480 unsigned LocalSize
[3];
2483 * Whether a variable work group size has been specified as defined by
2484 * ARB_compute_variable_group_size.
2486 bool LocalSizeVariable
;
2491 * A linked GLSL shader object.
2493 struct gl_linked_shader
2495 gl_shader_stage Stage
;
2498 unsigned SourceChecksum
;
2501 struct gl_program
*Program
; /**< Post-compile assembly code */
2504 * \name Sampler tracking
2506 * \note Each of these fields is only set post-linking.
2509 GLbitfield shadow_samplers
; /**< Samplers used for shadow sampling. */
2513 * Number of default uniform block components used by this shader.
2515 * This field is only set post-linking.
2517 unsigned num_uniform_components
;
2520 * Number of combined uniform components used by this shader.
2522 * This field is only set post-linking. It is the sum of the uniform block
2523 * sizes divided by sizeof(float), and num_uniform_compoennts.
2525 unsigned num_combined_uniform_components
;
2527 struct exec_list
*ir
;
2528 struct exec_list
*packed_varyings
;
2529 struct exec_list
*fragdata_arrays
;
2530 struct glsl_symbol_table
*symbols
;
2533 static inline GLbitfield
gl_external_samplers(struct gl_program
*prog
)
2535 GLbitfield external_samplers
= 0;
2536 GLbitfield mask
= prog
->SamplersUsed
;
2539 int idx
= u_bit_scan(&mask
);
2540 if (prog
->sh
.SamplerTargets
[idx
] == TEXTURE_EXTERNAL_INDEX
)
2541 external_samplers
|= (1 << idx
);
2544 return external_samplers
;
2548 * Compile status enum. compile_skipped is used to indicate the compile
2549 * was skipped due to the shader matching one that's been seen before by
2550 * the on-disk cache.
2552 enum gl_compile_status
2554 compile_failure
= 0,
2561 * A GLSL shader object.
2565 /** GL_FRAGMENT_SHADER || GL_VERTEX_SHADER || GL_GEOMETRY_SHADER_ARB ||
2566 * GL_TESS_CONTROL_SHADER || GL_TESS_EVALUATION_SHADER.
2567 * Must be the first field.
2570 gl_shader_stage Stage
;
2571 GLuint Name
; /**< AKA the handle */
2572 GLint RefCount
; /**< Reference count */
2573 GLchar
*Label
; /**< GL_KHR_debug */
2574 unsigned char sha1
[20]; /**< SHA1 hash of pre-processed source */
2575 GLboolean DeletePending
;
2576 enum gl_compile_status CompileStatus
;
2577 bool IsES
; /**< True if this shader uses GLSL ES */
2580 unsigned SourceChecksum
; /**< for debug/logging purposes */
2582 const GLchar
*Source
; /**< Source code string */
2584 const GLchar
*FallbackSource
; /**< Fallback string used by on-disk cache*/
2588 unsigned Version
; /**< GLSL version used for linking */
2590 struct exec_list
*ir
;
2591 struct glsl_symbol_table
*symbols
;
2594 * A bitmask of gl_advanced_blend_mode values
2596 GLbitfield BlendSupport
;
2599 * Whether early fragment tests are enabled as defined by
2600 * ARB_shader_image_load_store.
2602 bool EarlyFragmentTests
;
2604 bool ARB_fragment_coord_conventions_enable
;
2606 bool redeclares_gl_fragcoord
;
2607 bool uses_gl_fragcoord
;
2609 bool PostDepthCoverage
;
2613 * Fragment shader state from GLSL 1.50 layout qualifiers.
2615 bool origin_upper_left
;
2616 bool pixel_center_integer
;
2619 * Whether bindless_sampler/bindless_image, and respectively
2620 * bound_sampler/bound_image are declared at global scope as defined by
2621 * ARB_bindless_texture.
2623 bool bindless_sampler
;
2624 bool bindless_image
;
2628 /** Global xfb_stride out qualifier if any */
2629 GLuint TransformFeedbackBufferStride
[MAX_FEEDBACK_BUFFERS
];
2631 struct gl_shader_info info
;
2635 struct gl_uniform_buffer_variable
2640 * Name of the uniform as seen by glGetUniformIndices.
2642 * glGetUniformIndices requires that the block instance index \b not be
2643 * present in the name of queried uniforms.
2646 * \c gl_uniform_buffer_variable::IndexName and
2647 * \c gl_uniform_buffer_variable::Name may point to identical storage.
2651 const struct glsl_type
*Type
;
2652 unsigned int Offset
;
2657 enum gl_uniform_block_packing
2666 struct gl_uniform_block
2668 /** Declared name of the uniform block */
2671 /** Array of supplemental information about UBO ir_variables. */
2672 struct gl_uniform_buffer_variable
*Uniforms
;
2676 * Index (GL_UNIFORM_BLOCK_BINDING) into ctx->UniformBufferBindings[] to use
2677 * with glBindBufferBase to bind a buffer object to this uniform block. When
2678 * updated in the program, _NEW_BUFFER_OBJECT will be set.
2683 * Minimum size (in bytes) of a buffer object to back this uniform buffer
2684 * (GL_UNIFORM_BLOCK_DATA_SIZE).
2686 GLuint UniformBufferSize
;
2688 /** Stages that reference this block */
2692 * Linearized array index for uniform block instance arrays
2694 * Given a uniform block instance array declared with size
2695 * blk[s_0][s_1]..[s_m], the block referenced by blk[i_0][i_1]..[i_m] will
2696 * have the linearized array index
2699 * i_m + ∑ i_j * ∏ s_k
2702 * For a uniform block instance that is not an array, this is always 0.
2704 uint8_t linearized_array_index
;
2707 * Layout specified in the shader
2709 * This isn't accessible through the API, but it is used while
2710 * cross-validating uniform blocks.
2712 enum gl_uniform_block_packing _Packing
;
2713 GLboolean _RowMajor
;
2717 * Structure that represents a reference to an atomic buffer from some
2720 struct gl_active_atomic_buffer
2722 /** Uniform indices of the atomic counters declared within it. */
2726 /** Binding point index associated with it. */
2729 /** Minimum reasonable size it is expected to have. */
2732 /** Shader stages making use of it. */
2733 GLboolean StageReferences
[MESA_SHADER_STAGES
];
2737 * Data container for shader queries. This holds only the minimal
2738 * amount of required information for resource queries to work.
2740 struct gl_shader_variable
2743 * Declared type of the variable
2745 const struct glsl_type
*type
;
2748 * If the variable is in an interface block, this is the type of the block.
2750 const struct glsl_type
*interface_type
;
2753 * For variables inside structs (possibly recursively), this is the
2754 * outermost struct type.
2756 const struct glsl_type
*outermost_struct_type
;
2759 * Declared name of the variable
2764 * Storage location of the base of this variable
2766 * The precise meaning of this field depends on the nature of the variable.
2768 * - Vertex shader input: one of the values from \c gl_vert_attrib.
2769 * - Vertex shader output: one of the values from \c gl_varying_slot.
2770 * - Geometry shader input: one of the values from \c gl_varying_slot.
2771 * - Geometry shader output: one of the values from \c gl_varying_slot.
2772 * - Fragment shader input: one of the values from \c gl_varying_slot.
2773 * - Fragment shader output: one of the values from \c gl_frag_result.
2774 * - Uniforms: Per-stage uniform slot number for default uniform block.
2775 * - Uniforms: Index within the uniform block definition for UBO members.
2776 * - Non-UBO Uniforms: explicit location until linking then reused to
2777 * store uniform slot number.
2778 * - Other: This field is not currently used.
2780 * If the variable is a uniform, shader input, or shader output, and the
2781 * slot has not been assigned, the value will be -1.
2786 * Specifies the first component the variable is stored in as per
2787 * ARB_enhanced_layouts.
2789 unsigned component
:2;
2792 * Output index for dual source blending.
2795 * The GLSL spec only allows the values 0 or 1 for the index in \b dual
2801 * Specifies whether a shader input/output is per-patch in tessellation
2807 * Storage class of the variable.
2809 * \sa (n)ir_variable_mode
2814 * Interpolation mode for shader inputs / outputs
2816 * \sa glsl_interp_mode
2818 unsigned interpolation
:2;
2821 * Was the location explicitly set in the shader?
2823 * If the location is explicitly set in the shader, it \b cannot be changed
2824 * by the linker or by the API (e.g., calls to \c glBindAttribLocation have
2827 unsigned explicit_location
:1;
2830 * Precision qualifier.
2832 unsigned precision
:2;
2836 * Active resource in a gl_shader_program
2838 struct gl_program_resource
2840 GLenum Type
; /** Program interface type. */
2841 const void *Data
; /** Pointer to resource associated data structure. */
2842 uint8_t StageReferences
; /** Bitmask of shader stage references. */
2846 * Link status enum. linking_skipped is used to indicate linking
2847 * was skipped due to the shader being loaded from the on-disk cache.
2851 linking_failure
= 0,
2857 * A data structure to be shared by gl_shader_program and gl_program.
2859 struct gl_shader_program_data
2861 GLint RefCount
; /**< Reference count */
2863 /** SHA1 hash of linked shader program */
2864 unsigned char sha1
[20];
2866 unsigned NumUniformStorage
;
2867 unsigned NumHiddenUniforms
;
2868 struct gl_uniform_storage
*UniformStorage
;
2870 unsigned NumUniformBlocks
;
2871 struct gl_uniform_block
*UniformBlocks
;
2873 unsigned NumShaderStorageBlocks
;
2874 struct gl_uniform_block
*ShaderStorageBlocks
;
2876 struct gl_active_atomic_buffer
*AtomicBuffers
;
2877 unsigned NumAtomicBuffers
;
2879 /* Shader cache variables used during restore */
2880 unsigned NumUniformDataSlots
;
2881 union gl_constant_value
*UniformDataSlots
;
2883 bool cache_fallback
;
2885 /* TODO: This used by Gallium drivers to skip the cache on tgsi fallback.
2886 * All structures (gl_program, uniform storage, etc) will get recreated
2887 * even though we have already loaded them from cache. Once the i965 cache
2888 * lands we should switch to using the cache_fallback support.
2892 /** List of all active resources after linking. */
2893 struct gl_program_resource
*ProgramResourceList
;
2894 unsigned NumProgramResourceList
;
2896 enum gl_link_status LinkStatus
; /**< GL_LINK_STATUS */
2897 GLboolean Validated
;
2900 unsigned Version
; /**< GLSL version used for linking */
2902 /* Mask of stages this program was linked against */
2903 unsigned linked_stages
;
2907 * A GLSL program object.
2908 * Basically a linked collection of vertex and fragment shaders.
2910 struct gl_shader_program
2912 GLenum Type
; /**< Always GL_SHADER_PROGRAM (internal token) */
2913 GLuint Name
; /**< aka handle or ID */
2914 GLchar
*Label
; /**< GL_KHR_debug */
2915 GLint RefCount
; /**< Reference count */
2916 GLboolean DeletePending
;
2919 * Is the application intending to glGetProgramBinary this program?
2921 GLboolean BinaryRetreivableHint
;
2924 * Indicates whether program can be bound for individual pipeline stages
2925 * using UseProgramStages after it is next linked.
2927 GLboolean SeparateShader
;
2929 GLuint NumShaders
; /**< number of attached shaders */
2930 struct gl_shader
**Shaders
; /**< List of attached the shaders */
2933 * User-defined attribute bindings
2935 * These are set via \c glBindAttribLocation and are used to direct the
2936 * GLSL linker. These are \b not the values used in the compiled shader,
2937 * and they are \b not the values returned by \c glGetAttribLocation.
2939 struct string_to_uint_map
*AttributeBindings
;
2942 * User-defined fragment data bindings
2944 * These are set via \c glBindFragDataLocation and are used to direct the
2945 * GLSL linker. These are \b not the values used in the compiled shader,
2946 * and they are \b not the values returned by \c glGetFragDataLocation.
2948 struct string_to_uint_map
*FragDataBindings
;
2949 struct string_to_uint_map
*FragDataIndexBindings
;
2952 * Transform feedback varyings last specified by
2953 * glTransformFeedbackVaryings().
2955 * For the current set of transform feedback varyings used for transform
2956 * feedback output, see LinkedTransformFeedback.
2960 /** Global xfb_stride out qualifier if any */
2961 GLuint BufferStride
[MAX_FEEDBACK_BUFFERS
];
2963 GLchar
**VaryingNames
; /**< Array [NumVarying] of char * */
2964 } TransformFeedback
;
2966 struct gl_program
*last_vert_prog
;
2968 /** Post-link gl_FragDepth layout for ARB_conservative_depth. */
2969 enum gl_frag_depth_layout FragDepthLayout
;
2972 * Geometry shader state - copied into gl_program by
2973 * _mesa_copy_linked_program_data().
2978 bool UsesEndPrimitive
;
2983 * Compute shader state - copied into gl_program by
2984 * _mesa_copy_linked_program_data().
2988 * Size of shared variables accessed by the compute shader.
2990 unsigned SharedSize
;
2993 /** Data shared by gl_program and gl_shader_program */
2994 struct gl_shader_program_data
*data
;
2997 * Mapping from GL uniform locations returned by \c glUniformLocation to
2998 * UniformStorage entries. Arrays will have multiple contiguous slots
2999 * in the UniformRemapTable, all pointing to the same UniformStorage entry.
3001 unsigned NumUniformRemapTable
;
3002 struct gl_uniform_storage
**UniformRemapTable
;
3005 * Sometimes there are empty slots left over in UniformRemapTable after we
3006 * allocate slots to explicit locations. This list stores the blocks of
3007 * continuous empty slots inside UniformRemapTable.
3009 struct exec_list EmptyUniformLocations
;
3012 * Total number of explicit uniform location including inactive uniforms.
3014 unsigned NumExplicitUniformLocations
;
3017 * Map of active uniform names to locations
3019 * Maps any active uniform that is not an array element to a location.
3020 * Each active uniform, including individual structure members will appear
3021 * in this map. This roughly corresponds to the set of names that would be
3022 * enumerated by \c glGetActiveUniform.
3024 struct string_to_uint_map
*UniformHash
;
3026 GLboolean SamplersValidated
; /**< Samplers validated against texture units? */
3028 bool IsES
; /**< True if this program uses GLSL ES */
3031 * Per-stage shaders resulting from the first stage of linking.
3033 * Set of linked shaders for this program. The array is accessed using the
3034 * \c MESA_SHADER_* defines. Entries for non-existent stages will be
3037 struct gl_linked_shader
*_LinkedShaders
[MESA_SHADER_STAGES
];
3039 /* True if any of the fragment shaders attached to this program use:
3040 * #extension ARB_fragment_coord_conventions: enable
3042 GLboolean ARB_fragment_coord_conventions_enable
;
3046 #define GLSL_DUMP 0x1 /**< Dump shaders to stdout */
3047 #define GLSL_LOG 0x2 /**< Write shaders to files */
3048 #define GLSL_UNIFORMS 0x4 /**< Print glUniform calls */
3049 #define GLSL_NOP_VERT 0x8 /**< Force no-op vertex shaders */
3050 #define GLSL_NOP_FRAG 0x10 /**< Force no-op fragment shaders */
3051 #define GLSL_USE_PROG 0x20 /**< Log glUseProgram calls */
3052 #define GLSL_REPORT_ERRORS 0x40 /**< Print compilation errors */
3053 #define GLSL_DUMP_ON_ERROR 0x80 /**< Dump shaders to stderr on compile error */
3054 #define GLSL_CACHE_INFO 0x100 /**< Print debug information about shader cache */
3055 #define GLSL_CACHE_FALLBACK 0x200 /**< Force shader cache fallback paths */
3059 * Context state for GLSL vertex/fragment shaders.
3060 * Extended to support pipeline object
3062 struct gl_pipeline_object
3064 /** Name of the pipeline object as received from glGenProgramPipelines.
3065 * It would be 0 for shaders without separate shader objects.
3071 GLchar
*Label
; /**< GL_KHR_debug */
3074 * Programs used for rendering
3076 * There is a separate program set for each shader stage.
3078 struct gl_program
*CurrentProgram
[MESA_SHADER_STAGES
];
3080 struct gl_shader_program
*ReferencedPrograms
[MESA_SHADER_STAGES
];
3083 * Program used by glUniform calls.
3085 * Explicitly set by \c glUseProgram and \c glActiveProgramEXT.
3087 struct gl_shader_program
*ActiveProgram
;
3089 GLbitfield Flags
; /**< Mask of GLSL_x flags */
3091 GLboolean EverBound
; /**< Has the pipeline object been created */
3093 GLboolean Validated
; /**< Pipeline Validation status */
3099 * Context state for GLSL pipeline shaders.
3101 struct gl_pipeline_shader_state
3103 /** Currently bound pipeline object. See _mesa_BindProgramPipeline() */
3104 struct gl_pipeline_object
*Current
;
3106 /* Default Object to ensure that _Shader is never NULL */
3107 struct gl_pipeline_object
*Default
;
3109 /** Pipeline objects */
3110 struct _mesa_HashTable
*Objects
;
3114 * Compiler options for a single GLSL shaders type
3116 struct gl_shader_compiler_options
3118 /** Driver-selectable options: */
3119 GLboolean EmitNoLoops
;
3120 GLboolean EmitNoCont
; /**< Emit CONT opcode? */
3121 GLboolean EmitNoMainReturn
; /**< Emit CONT/RET opcodes? */
3122 GLboolean EmitNoPow
; /**< Emit POW opcodes? */
3123 GLboolean EmitNoSat
; /**< Emit SAT opcodes? */
3124 GLboolean LowerCombinedClipCullDistance
; /** Lower gl_ClipDistance and
3125 * gl_CullDistance together from
3126 * float[8] to vec4[2]
3130 * \name Forms of indirect addressing the driver cannot do.
3133 GLboolean EmitNoIndirectInput
; /**< No indirect addressing of inputs */
3134 GLboolean EmitNoIndirectOutput
; /**< No indirect addressing of outputs */
3135 GLboolean EmitNoIndirectTemp
; /**< No indirect addressing of temps */
3136 GLboolean EmitNoIndirectUniform
; /**< No indirect addressing of constants */
3137 GLboolean EmitNoIndirectSampler
; /**< No indirect addressing of samplers */
3140 GLuint MaxIfDepth
; /**< Maximum nested IF blocks */
3141 GLuint MaxUnrollIterations
;
3144 * Optimize code for array of structures backends.
3146 * This is a proxy for:
3147 * - preferring DP4 instructions (rather than MUL/MAD) for
3148 * matrix * vector operations, such as position transformation.
3150 GLboolean OptimizeForAOS
;
3152 GLboolean LowerBufferInterfaceBlocks
; /**< Lower UBO and SSBO access to intrinsics. */
3154 /** Clamp UBO and SSBO block indices so they don't go out-of-bounds. */
3155 GLboolean ClampBlockIndicesToArrayBounds
;
3157 const struct nir_shader_compiler_options
*NirOptions
;
3162 * Occlusion/timer query object.
3164 struct gl_query_object
3166 GLenum Target
; /**< The query target, when active */
3167 GLuint Id
; /**< hash table ID/name */
3168 GLchar
*Label
; /**< GL_KHR_debug */
3169 GLuint64EXT Result
; /**< the counter */
3170 GLboolean Active
; /**< inside Begin/EndQuery */
3171 GLboolean Ready
; /**< result is ready? */
3172 GLboolean EverBound
;/**< has query object ever been bound */
3173 GLuint Stream
; /**< The stream */
3178 * Context state for query objects.
3180 struct gl_query_state
3182 struct _mesa_HashTable
*QueryObjects
;
3183 struct gl_query_object
*CurrentOcclusionObject
; /* GL_ARB_occlusion_query */
3184 struct gl_query_object
*CurrentTimerObject
; /* GL_EXT_timer_query */
3186 /** GL_NV_conditional_render */
3187 struct gl_query_object
*CondRenderQuery
;
3189 /** GL_EXT_transform_feedback */
3190 struct gl_query_object
*PrimitivesGenerated
[MAX_VERTEX_STREAMS
];
3191 struct gl_query_object
*PrimitivesWritten
[MAX_VERTEX_STREAMS
];
3193 /** GL_ARB_transform_feedback_overflow_query */
3194 struct gl_query_object
*TransformFeedbackOverflow
[MAX_VERTEX_STREAMS
];
3195 struct gl_query_object
*TransformFeedbackOverflowAny
;
3197 /** GL_ARB_timer_query */
3198 struct gl_query_object
*TimeElapsed
;
3200 /** GL_ARB_pipeline_statistics_query */
3201 struct gl_query_object
*pipeline_stats
[MAX_PIPELINE_STATISTICS
];
3203 GLenum CondRenderMode
;
3207 /** Sync object state */
3208 struct gl_sync_object
3210 GLenum Type
; /**< GL_SYNC_FENCE */
3211 GLuint Name
; /**< Fence name */
3212 GLchar
*Label
; /**< GL_KHR_debug */
3213 GLint RefCount
; /**< Reference count */
3214 GLboolean DeletePending
; /**< Object was deleted while there were still
3215 * live references (e.g., sync not yet finished)
3217 GLenum SyncCondition
;
3218 GLbitfield Flags
; /**< Flags passed to glFenceSync */
3219 GLuint StatusFlag
:1; /**< Has the sync object been signaled? */
3224 * State which can be shared by multiple contexts:
3226 struct gl_shared_state
3228 mtx_t Mutex
; /**< for thread safety */
3229 GLint RefCount
; /**< Reference count */
3230 struct _mesa_HashTable
*DisplayList
; /**< Display lists hash table */
3231 struct _mesa_HashTable
*BitmapAtlas
; /**< For optimized glBitmap text */
3232 struct _mesa_HashTable
*TexObjects
; /**< Texture objects hash table */
3234 /** Default texture objects (shared by all texture units) */
3235 struct gl_texture_object
*DefaultTex
[NUM_TEXTURE_TARGETS
];
3237 /** Fallback texture used when a bound texture is incomplete */
3238 struct gl_texture_object
*FallbackTex
[NUM_TEXTURE_TARGETS
];
3241 * \name Thread safety and statechange notification for texture
3244 * \todo Improve the granularity of locking.
3247 mtx_t TexMutex
; /**< texobj thread safety */
3248 GLuint TextureStateStamp
; /**< state notification for shared tex */
3251 /** Default buffer object for vertex arrays that aren't in VBOs */
3252 struct gl_buffer_object
*NullBufferObj
;
3255 * \name Vertex/geometry/fragment programs
3258 struct _mesa_HashTable
*Programs
; /**< All vertex/fragment programs */
3259 struct gl_program
*DefaultVertexProgram
;
3260 struct gl_program
*DefaultFragmentProgram
;
3263 /* GL_ATI_fragment_shader */
3264 struct _mesa_HashTable
*ATIShaders
;
3265 struct ati_fragment_shader
*DefaultFragmentShader
;
3267 struct _mesa_HashTable
*BufferObjects
;
3269 /** Table of both gl_shader and gl_shader_program objects */
3270 struct _mesa_HashTable
*ShaderObjects
;
3272 /* GL_EXT_framebuffer_object */
3273 struct _mesa_HashTable
*RenderBuffers
;
3274 struct _mesa_HashTable
*FrameBuffers
;
3277 struct set
*SyncObjects
;
3279 /** GL_ARB_sampler_objects */
3280 struct _mesa_HashTable
*SamplerObjects
;
3282 /* GL_ARB_bindless_texture */
3283 struct hash_table_u64
*TextureHandles
;
3284 struct hash_table_u64
*ImageHandles
;
3285 mtx_t HandlesMutex
; /**< For texture/image handles safety */
3288 * Some context in this share group was affected by a GPU reset
3290 * On the next call to \c glGetGraphicsResetStatus, contexts that have not
3291 * been affected by a GPU reset must also return
3292 * \c GL_INNOCENT_CONTEXT_RESET_ARB.
3294 * Once this field becomes true, it is never reset to false.
3296 bool ShareGroupReset
;
3302 * Renderbuffers represent drawing surfaces such as color, depth and/or
3303 * stencil. A framebuffer object has a set of renderbuffers.
3304 * Drivers will typically derive subclasses of this type.
3306 struct gl_renderbuffer
3308 mtx_t Mutex
; /**< for thread safety */
3309 GLuint ClassID
; /**< Useful for drivers */
3311 GLchar
*Label
; /**< GL_KHR_debug */
3313 GLuint Width
, Height
;
3315 GLboolean Purgeable
; /**< Is the buffer purgeable under memory pressure? */
3316 GLboolean AttachedAnytime
; /**< TRUE if it was attached to a framebuffer */
3318 * True for renderbuffers that wrap textures, giving the driver a chance to
3319 * flush render caches through the FinishRenderTexture hook.
3321 * Drivers may also set this on renderbuffers other than those generated by
3322 * glFramebufferTexture(), though it means FinishRenderTexture() would be
3323 * called without a rb->TexImage.
3325 GLboolean NeedsFinishRenderTexture
;
3327 GLenum InternalFormat
; /**< The user-specified format */
3328 GLenum _BaseFormat
; /**< Either GL_RGB, GL_RGBA, GL_DEPTH_COMPONENT or
3329 GL_STENCIL_INDEX. */
3330 mesa_format Format
; /**< The actual renderbuffer memory format */
3332 * Pointer to the texture image if this renderbuffer wraps a texture,
3335 * Note that the reference on the gl_texture_object containing this
3336 * TexImage is held by the gl_renderbuffer_attachment.
3338 struct gl_texture_image
*TexImage
;
3340 /** Delete this renderbuffer */
3341 void (*Delete
)(struct gl_context
*ctx
, struct gl_renderbuffer
*rb
);
3343 /** Allocate new storage for this renderbuffer */
3344 GLboolean (*AllocStorage
)(struct gl_context
*ctx
,
3345 struct gl_renderbuffer
*rb
,
3346 GLenum internalFormat
,
3347 GLuint width
, GLuint height
);
3352 * A renderbuffer attachment points to either a texture object (and specifies
3353 * a mipmap level, cube face or 3D texture slice) or points to a renderbuffer.
3355 struct gl_renderbuffer_attachment
3357 GLenum Type
; /**< \c GL_NONE or \c GL_TEXTURE or \c GL_RENDERBUFFER_EXT */
3361 * If \c Type is \c GL_RENDERBUFFER_EXT, this stores a pointer to the
3362 * application supplied renderbuffer object.
3364 struct gl_renderbuffer
*Renderbuffer
;
3367 * If \c Type is \c GL_TEXTURE, this stores a pointer to the application
3368 * supplied texture object.
3370 struct gl_texture_object
*Texture
;
3371 GLuint TextureLevel
; /**< Attached mipmap level. */
3372 GLuint CubeMapFace
; /**< 0 .. 5, for cube map textures. */
3373 GLuint Zoffset
; /**< Slice for 3D textures, or layer for both 1D
3374 * and 2D array textures */
3380 * A framebuffer is a collection of renderbuffers (color, depth, stencil, etc).
3381 * In C++ terms, think of this as a base class from which device drivers
3382 * will make derived classes.
3384 struct gl_framebuffer
3386 mtx_t Mutex
; /**< for thread safety */
3388 * If zero, this is a window system framebuffer. If non-zero, this
3389 * is a FBO framebuffer; note that for some devices (i.e. those with
3390 * a natural pixel coordinate system for FBOs that differs from the
3391 * OpenGL/Mesa coordinate system), this means that the viewport,
3392 * polygon face orientation, and polygon stipple will have to be inverted.
3397 GLchar
*Label
; /**< GL_KHR_debug */
3399 GLboolean DeletePending
;
3402 * The framebuffer's visual. Immutable if this is a window system buffer.
3403 * Computed from attachments if user-made FBO.
3405 struct gl_config Visual
;
3408 * Size of frame buffer in pixels. If there are no attachments, then both
3411 GLuint Width
, Height
;
3414 * In the case that the framebuffer has no attachment (i.e.
3415 * GL_ARB_framebuffer_no_attachments) then the geometry of
3416 * the framebuffer is specified by the default values.
3419 GLuint Width
, Height
, Layers
, NumSamples
;
3420 GLboolean FixedSampleLocations
;
3421 /* Derived from NumSamples by the driver so that it can choose a valid
3422 * value for the hardware.
3427 /** \name Drawing bounds (Intersection of buffer size and scissor box)
3428 * The drawing region is given by [_Xmin, _Xmax) x [_Ymin, _Ymax),
3429 * (inclusive for _Xmin and _Ymin while exclusive for _Xmax and _Ymax)
3436 /** \name Derived Z buffer stuff */
3438 GLuint _DepthMax
; /**< Max depth buffer value */
3439 GLfloat _DepthMaxF
; /**< Float max depth buffer value */
3440 GLfloat _MRD
; /**< minimum resolvable difference in Z values */
3443 /** One of the GL_FRAMEBUFFER_(IN)COMPLETE_* tokens */
3446 /** Whether one of Attachment has Type != GL_NONE
3447 * NOTE: the values for Width and Height are set to 0 in case of having
3448 * no attachments, a backend driver supporting the extension
3449 * GL_ARB_framebuffer_no_attachments must check for the flag _HasAttachments
3450 * and if GL_FALSE, must then use the values in DefaultGeometry to initialize
3451 * its viewport, scissor and so on (in particular _Xmin, _Xmax, _Ymin and
3452 * _Ymax do NOT take into account _HasAttachments being false). To get the
3453 * geometry of the framebuffer, the helper functions
3454 * _mesa_geometric_width(),
3455 * _mesa_geometric_height(),
3456 * _mesa_geometric_samples() and
3457 * _mesa_geometric_layers()
3458 * are available that check _HasAttachments.
3460 bool _HasAttachments
;
3462 GLbitfield _IntegerBuffers
; /**< Which color buffers are integer valued */
3464 /* ARB_color_buffer_float */
3465 GLboolean _AllColorBuffersFixedPoint
; /* no integer, no float */
3466 GLboolean _HasSNormOrFloatColorBuffer
;
3469 * The maximum number of layers in the framebuffer, or 0 if the framebuffer
3470 * is not layered. For cube maps and cube map arrays, each cube face
3471 * counts as a layer. As the case for Width, Height a backend driver
3472 * supporting GL_ARB_framebuffer_no_attachments must use DefaultGeometry
3473 * in the case that _HasAttachments is false
3475 GLuint MaxNumLayers
;
3477 /** Array of all renderbuffer attachments, indexed by BUFFER_* tokens. */
3478 struct gl_renderbuffer_attachment Attachment
[BUFFER_COUNT
];
3480 /* In unextended OpenGL these vars are part of the GL_COLOR_BUFFER
3481 * attribute group and GL_PIXEL attribute group, respectively.
3483 GLenum ColorDrawBuffer
[MAX_DRAW_BUFFERS
];
3484 GLenum ColorReadBuffer
;
3486 /** Computed from ColorDraw/ReadBuffer above */
3487 GLuint _NumColorDrawBuffers
;
3488 GLint _ColorDrawBufferIndexes
[MAX_DRAW_BUFFERS
]; /**< BUFFER_x or -1 */
3489 GLint _ColorReadBufferIndex
; /* -1 = None */
3490 struct gl_renderbuffer
*_ColorDrawBuffers
[MAX_DRAW_BUFFERS
];
3491 struct gl_renderbuffer
*_ColorReadBuffer
;
3493 /** Delete this framebuffer */
3494 void (*Delete
)(struct gl_framebuffer
*fb
);
3499 * Precision info for shader datatypes. See glGetShaderPrecisionFormat().
3503 GLushort RangeMin
; /**< min value exponent */
3504 GLushort RangeMax
; /**< max value exponent */
3505 GLushort Precision
; /**< number of mantissa bits */
3510 * Limits for vertex, geometry and fragment programs/shaders.
3512 struct gl_program_constants
3514 /* logical limits */
3515 GLuint MaxInstructions
;
3516 GLuint MaxAluInstructions
;
3517 GLuint MaxTexInstructions
;
3518 GLuint MaxTexIndirections
;
3521 GLuint MaxAddressRegs
;
3522 GLuint MaxAddressOffset
; /**< [-MaxAddressOffset, MaxAddressOffset-1] */
3523 GLuint MaxParameters
;
3524 GLuint MaxLocalParams
;
3525 GLuint MaxEnvParams
;
3526 /* native/hardware limits */
3527 GLuint MaxNativeInstructions
;
3528 GLuint MaxNativeAluInstructions
;
3529 GLuint MaxNativeTexInstructions
;
3530 GLuint MaxNativeTexIndirections
;
3531 GLuint MaxNativeAttribs
;
3532 GLuint MaxNativeTemps
;
3533 GLuint MaxNativeAddressRegs
;
3534 GLuint MaxNativeParameters
;
3536 GLuint MaxUniformComponents
; /**< Usually == MaxParameters * 4 */
3539 * \name Per-stage input / output limits
3541 * Previous to OpenGL 3.2, the intrastage data limits were advertised with
3542 * a single value: GL_MAX_VARYING_COMPONENTS (GL_MAX_VARYING_VECTORS in
3543 * ES). This is stored as \c gl_constants::MaxVarying.
3545 * Starting with OpenGL 3.2, the limits are advertised with per-stage
3546 * variables. Each stage as a certain number of outputs that it can feed
3547 * to the next stage and a certain number inputs that it can consume from
3548 * the previous stage.
3550 * Vertex shader inputs do not participate this in this accounting.
3551 * These are tracked exclusively by \c gl_program_constants::MaxAttribs.
3553 * Fragment shader outputs do not participate this in this accounting.
3554 * These are tracked exclusively by \c gl_constants::MaxDrawBuffers.
3557 GLuint MaxInputComponents
;
3558 GLuint MaxOutputComponents
;
3561 /* ES 2.0 and GL_ARB_ES2_compatibility */
3562 struct gl_precision LowFloat
, MediumFloat
, HighFloat
;
3563 struct gl_precision LowInt
, MediumInt
, HighInt
;
3564 /* GL_ARB_uniform_buffer_object */
3565 GLuint MaxUniformBlocks
;
3566 GLuint MaxCombinedUniformComponents
;
3567 GLuint MaxTextureImageUnits
;
3569 /* GL_ARB_shader_atomic_counters */
3570 GLuint MaxAtomicBuffers
;
3571 GLuint MaxAtomicCounters
;
3573 /* GL_ARB_shader_image_load_store */
3574 GLuint MaxImageUniforms
;
3576 /* GL_ARB_shader_storage_buffer_object */
3577 GLuint MaxShaderStorageBlocks
;
3582 * Constants which may be overridden by device driver during context creation
3583 * but are never changed after that.
3587 GLuint MaxTextureMbytes
; /**< Max memory per image, in MB */
3588 GLuint MaxTextureLevels
; /**< Max mipmap levels. */
3589 GLuint Max3DTextureLevels
; /**< Max mipmap levels for 3D textures */
3590 GLuint MaxCubeTextureLevels
; /**< Max mipmap levels for cube textures */
3591 GLuint MaxArrayTextureLayers
; /**< Max layers in array textures */
3592 GLuint MaxTextureRectSize
; /**< Max rectangle texture size, in pixes */
3593 GLuint MaxTextureCoordUnits
;
3594 GLuint MaxCombinedTextureImageUnits
;
3595 GLuint MaxTextureUnits
; /**< = MIN(CoordUnits, FragmentProgram.ImageUnits) */
3596 GLfloat MaxTextureMaxAnisotropy
; /**< GL_EXT_texture_filter_anisotropic */
3597 GLfloat MaxTextureLodBias
; /**< GL_EXT_texture_lod_bias */
3598 GLuint MaxTextureBufferSize
; /**< GL_ARB_texture_buffer_object */
3600 GLuint TextureBufferOffsetAlignment
; /**< GL_ARB_texture_buffer_range */
3602 GLuint MaxArrayLockSize
;
3606 GLfloat MinPointSize
, MaxPointSize
; /**< aliased */
3607 GLfloat MinPointSizeAA
, MaxPointSizeAA
; /**< antialiased */
3608 GLfloat PointSizeGranularity
;
3609 GLfloat MinLineWidth
, MaxLineWidth
; /**< aliased */
3610 GLfloat MinLineWidthAA
, MaxLineWidthAA
; /**< antialiased */
3611 GLfloat LineWidthGranularity
;
3613 GLuint MaxClipPlanes
;
3615 GLfloat MaxShininess
; /**< GL_NV_light_max_exponent */
3616 GLfloat MaxSpotExponent
; /**< GL_NV_light_max_exponent */
3618 GLuint MaxViewportWidth
, MaxViewportHeight
;
3619 GLuint MaxViewports
; /**< GL_ARB_viewport_array */
3620 GLuint ViewportSubpixelBits
; /**< GL_ARB_viewport_array */
3624 } ViewportBounds
; /**< GL_ARB_viewport_array */
3625 GLuint MaxWindowRectangles
; /**< GL_EXT_window_rectangles */
3627 struct gl_program_constants Program
[MESA_SHADER_STAGES
];
3628 GLuint MaxProgramMatrices
;
3629 GLuint MaxProgramMatrixStackDepth
;
3632 GLuint SamplesPassed
;
3635 GLuint PrimitivesGenerated
;
3636 GLuint PrimitivesWritten
;
3637 GLuint VerticesSubmitted
;
3638 GLuint PrimitivesSubmitted
;
3639 GLuint VsInvocations
;
3641 GLuint TessInvocations
;
3642 GLuint GsInvocations
;
3643 GLuint GsPrimitives
;
3644 GLuint FsInvocations
;
3645 GLuint ComputeInvocations
;
3646 GLuint ClInPrimitives
;
3647 GLuint ClOutPrimitives
;
3650 GLuint MaxDrawBuffers
; /**< GL_ARB_draw_buffers */
3652 GLuint MaxColorAttachments
; /**< GL_EXT_framebuffer_object */
3653 GLuint MaxRenderbufferSize
; /**< GL_EXT_framebuffer_object */
3654 GLuint MaxSamples
; /**< GL_ARB_framebuffer_object */
3657 * GL_ARB_framebuffer_no_attachments
3659 GLuint MaxFramebufferWidth
;
3660 GLuint MaxFramebufferHeight
;
3661 GLuint MaxFramebufferLayers
;
3662 GLuint MaxFramebufferSamples
;
3664 /** Number of varying vectors between any two shader stages. */
3668 * GL_ARB_uniform_buffer_object
3670 GLuint MaxCombinedUniformBlocks
;
3671 GLuint MaxUniformBufferBindings
;
3672 GLuint MaxUniformBlockSize
;
3673 GLuint UniformBufferOffsetAlignment
;
3677 * GL_ARB_shader_storage_buffer_object
3679 GLuint MaxCombinedShaderStorageBlocks
;
3680 GLuint MaxShaderStorageBufferBindings
;
3681 GLuint MaxShaderStorageBlockSize
;
3682 GLuint ShaderStorageBufferOffsetAlignment
;
3686 * GL_ARB_explicit_uniform_location
3688 GLuint MaxUserAssignableUniformLocations
;
3690 /** geometry shader */
3691 GLuint MaxGeometryOutputVertices
;
3692 GLuint MaxGeometryTotalOutputComponents
;
3694 GLuint GLSLVersion
; /**< Desktop GLSL version supported (ex: 120 = 1.20) */
3697 * Changes default GLSL extension behavior from "error" to "warn". It's out
3698 * of spec, but it can make some apps work that otherwise wouldn't.
3700 GLboolean ForceGLSLExtensionsWarn
;
3703 * If non-zero, forces GLSL shaders to behave as if they began
3704 * with "#version ForceGLSLVersion".
3706 GLuint ForceGLSLVersion
;
3709 * Allow GLSL #extension directives in the middle of shaders.
3711 GLboolean AllowGLSLExtensionDirectiveMidShader
;
3714 * Allow GLSL built-in variables to be redeclared verbatim
3716 GLboolean AllowGLSLBuiltinVariableRedeclaration
;
3719 * Allow creating a higher compat profile (version 3.1+) for apps that
3720 * request it. Be careful when adding that driconf option because some
3721 * features are unimplemented and might not work correctly.
3723 GLboolean AllowHigherCompatVersion
;
3726 * Force computing the absolute value for sqrt() and inversesqrt() to follow
3727 * D3D9 when apps rely on this behaviour.
3729 GLboolean ForceGLSLAbsSqrt
;
3732 * Force uninitialized variables to default to zero.
3734 GLboolean GLSLZeroInit
;
3737 * Does the driver support real 32-bit integers? (Otherwise, integers are
3738 * simulated via floats.)
3740 GLboolean NativeIntegers
;
3743 * Does VertexID count from zero or from base vertex?
3746 * If desktop GLSL 1.30 or GLSL ES 3.00 are not supported, this field is
3747 * ignored and need not be set.
3749 bool VertexID_is_zero_based
;
3752 * If the driver supports real 32-bit integers, what integer value should be
3753 * used for boolean true in uniform uploads? (Usually 1 or ~0.)
3755 GLuint UniformBooleanTrue
;
3758 * Maximum amount of time, measured in nanseconds, that the server can wait.
3760 GLuint64 MaxServerWaitTimeout
;
3762 /** GL_EXT_provoking_vertex */
3763 GLboolean QuadsFollowProvokingVertexConvention
;
3765 /** GL_ARB_viewport_array */
3766 GLenum LayerAndVPIndexProvokingVertex
;
3768 /** OpenGL version 3.0 */
3769 GLbitfield ContextFlags
; /**< Ex: GL_CONTEXT_FLAG_FORWARD_COMPATIBLE_BIT */
3771 /** OpenGL version 3.2 */
3772 GLbitfield ProfileMask
; /**< Mask of CONTEXT_x_PROFILE_BIT */
3774 /** OpenGL version 4.4 */
3775 GLuint MaxVertexAttribStride
;
3777 /** GL_EXT_transform_feedback */
3778 GLuint MaxTransformFeedbackBuffers
;
3779 GLuint MaxTransformFeedbackSeparateComponents
;
3780 GLuint MaxTransformFeedbackInterleavedComponents
;
3781 GLuint MaxVertexStreams
;
3783 /** GL_EXT_gpu_shader4 */
3784 GLint MinProgramTexelOffset
, MaxProgramTexelOffset
;
3786 /** GL_ARB_texture_gather */
3787 GLuint MinProgramTextureGatherOffset
;
3788 GLuint MaxProgramTextureGatherOffset
;
3789 GLuint MaxProgramTextureGatherComponents
;
3791 /* GL_ARB_robustness */
3792 GLenum ResetStrategy
;
3794 /* GL_KHR_robustness */
3795 GLboolean RobustAccess
;
3797 /* GL_ARB_blend_func_extended */
3798 GLuint MaxDualSourceDrawBuffers
;
3801 * Whether the implementation strips out and ignores texture borders.
3803 * Many GPU hardware implementations don't support rendering with texture
3804 * borders and mipmapped textures. (Note: not static border color, but the
3805 * old 1-pixel border around each edge). Implementations then have to do
3806 * slow fallbacks to be correct, or just ignore the border and be fast but
3807 * wrong. Setting the flag strips the border off of TexImage calls,
3808 * providing "fast but wrong" at significantly reduced driver complexity.
3810 * Texture borders are deprecated in GL 3.0.
3812 GLboolean StripTextureBorder
;
3815 * For drivers which can do a better job at eliminating unused uniforms
3816 * than the GLSL compiler.
3818 * XXX Remove these as soon as a better solution is available.
3820 GLboolean GLSLSkipStrictMaxUniformLimitCheck
;
3822 /** Whether gl_FragCoord and gl_FrontFacing are system values. */
3823 bool GLSLFragCoordIsSysVal
;
3824 bool GLSLFrontFacingIsSysVal
;
3827 * Run the minimum amount of GLSL optimizations to be able to link
3828 * shaders optimally (eliminate dead varyings and uniforms) and just do
3829 * all the necessary lowering.
3831 bool GLSLOptimizeConservatively
;
3834 * True if gl_TessLevelInner/Outer[] in the TES should be inputs
3835 * (otherwise, they're system values).
3837 bool GLSLTessLevelsAsInputs
;
3840 * Always use the GetTransformFeedbackVertexCount() driver hook, rather
3841 * than passing the transform feedback object to the drawing function.
3843 GLboolean AlwaysUseGetTransformFeedbackVertexCount
;
3845 /** GL_ARB_map_buffer_alignment */
3846 GLuint MinMapBufferAlignment
;
3849 * Disable varying packing. This is out of spec, but potentially useful
3850 * for older platforms that supports a limited number of texture
3851 * indirections--on these platforms, unpacking the varyings in the fragment
3852 * shader increases the number of texture indirections by 1, which might
3853 * make some shaders not executable at all.
3855 * Drivers that support transform feedback must set this value to GL_FALSE.
3857 GLboolean DisableVaryingPacking
;
3860 * Should meaningful names be generated for compiler temporary variables?
3862 * Generally, it is not useful to have the compiler generate "meaningful"
3863 * names for temporary variables that it creates. This can, however, be a
3864 * useful debugging aid. In Mesa debug builds or release builds when
3865 * MESA_GLSL is set at run-time, meaningful names will be generated.
3866 * Drivers can also force names to be generated by setting this field.
3867 * For example, the i965 driver may set it when INTEL_DEBUG=vs (to dump
3868 * vertex shader assembly) is set at run-time.
3870 bool GenerateTemporaryNames
;
3873 * Maximum value supported for an index in DrawElements and friends.
3875 * This must be at least (1ull<<24)-1. The default value is
3878 * \since ES 3.0 or GL_ARB_ES3_compatibility
3879 * \sa _mesa_init_constants
3881 GLuint64 MaxElementIndex
;
3884 * Disable interpretation of line continuations (lines ending with a
3885 * backslash character ('\') in GLSL source.
3887 GLboolean DisableGLSLLineContinuations
;
3889 /** GL_ARB_texture_multisample */
3890 GLint MaxColorTextureSamples
;
3891 GLint MaxDepthTextureSamples
;
3892 GLint MaxIntegerSamples
;
3895 * GL_EXT_texture_multisample_blit_scaled implementation assumes that
3896 * samples are laid out in a rectangular grid roughly corresponding to
3897 * sample locations within a pixel. Below SampleMap{2,4,8}x variables
3898 * are used to map indices of rectangular grid to sample numbers within
3899 * a pixel. This mapping of indices to sample numbers must be initialized
3900 * by the driver for the target hardware. For example, if we have the 8X
3901 * MSAA sample number layout (sample positions) for XYZ hardware:
3903 * sample indices layout sample number layout
3904 * --------- ---------
3905 * | 0 | 1 | | a | b |
3906 * --------- ---------
3907 * | 2 | 3 | | c | d |
3908 * --------- ---------
3909 * | 4 | 5 | | e | f |
3910 * --------- ---------
3911 * | 6 | 7 | | g | h |
3912 * --------- ---------
3914 * Where a,b,c,d,e,f,g,h are integers between [0-7].
3916 * Then, initialize the SampleMap8x variable for XYZ hardware as shown
3918 * SampleMap8x = {a, b, c, d, e, f, g, h};
3920 * Follow the logic for sample counts 2-8.
3922 * For 16x the sample indices layout as a 4x4 grid as follows:
3934 uint8_t SampleMap2x
[2];
3935 uint8_t SampleMap4x
[4];
3936 uint8_t SampleMap8x
[8];
3937 uint8_t SampleMap16x
[16];
3939 /** GL_ARB_shader_atomic_counters */
3940 GLuint MaxAtomicBufferBindings
;
3941 GLuint MaxAtomicBufferSize
;
3942 GLuint MaxCombinedAtomicBuffers
;
3943 GLuint MaxCombinedAtomicCounters
;
3945 /** GL_ARB_vertex_attrib_binding */
3946 GLint MaxVertexAttribRelativeOffset
;
3947 GLint MaxVertexAttribBindings
;
3949 /* GL_ARB_shader_image_load_store */
3950 GLuint MaxImageUnits
;
3951 GLuint MaxCombinedShaderOutputResources
;
3952 GLuint MaxImageSamples
;
3953 GLuint MaxCombinedImageUniforms
;
3955 /** GL_ARB_compute_shader */
3956 GLuint MaxComputeWorkGroupCount
[3]; /* Array of x, y, z dimensions */
3957 GLuint MaxComputeWorkGroupSize
[3]; /* Array of x, y, z dimensions */
3958 GLuint MaxComputeWorkGroupInvocations
;
3959 GLuint MaxComputeSharedMemorySize
;
3961 /** GL_ARB_compute_variable_group_size */
3962 GLuint MaxComputeVariableGroupSize
[3]; /* Array of x, y, z dimensions */
3963 GLuint MaxComputeVariableGroupInvocations
;
3965 /** GL_ARB_gpu_shader5 */
3966 GLfloat MinFragmentInterpolationOffset
;
3967 GLfloat MaxFragmentInterpolationOffset
;
3969 GLboolean FakeSWMSAA
;
3971 /** GL_KHR_context_flush_control */
3972 GLenum ContextReleaseBehavior
;
3974 struct gl_shader_compiler_options ShaderCompilerOptions
[MESA_SHADER_STAGES
];
3976 /** GL_ARB_tessellation_shader */
3977 GLuint MaxPatchVertices
;
3978 GLuint MaxTessGenLevel
;
3979 GLuint MaxTessPatchComponents
;
3980 GLuint MaxTessControlTotalOutputComponents
;
3981 bool LowerTessLevel
; /**< Lower gl_TessLevel* from float[n] to vecn? */
3982 bool LowerTCSPatchVerticesIn
; /**< Lower gl_PatchVerticesIn to a uniform */
3983 bool LowerTESPatchVerticesIn
; /**< Lower gl_PatchVerticesIn to a uniform */
3984 bool PrimitiveRestartForPatches
;
3985 bool LowerCsDerivedVariables
; /**< Lower gl_GlobalInvocationID and
3986 * gl_LocalInvocationIndex based on
3987 * other builtin variables. */
3989 /** GL_OES_primitive_bounding_box */
3990 bool NoPrimitiveBoundingBoxOutput
;
3992 /** GL_ARB_sparse_buffer */
3993 GLuint SparseBufferPageSize
;
3995 /** Used as an input for sha1 generation in the on-disk shader cache */
3996 unsigned char *dri_config_options_sha1
;
3998 /** When drivers are OK with mapped buffers during draw and other calls. */
3999 bool AllowMappedBuffersDuringExecution
;
4004 * Enable flag for each OpenGL extension. Different device drivers will
4005 * enable different extensions at runtime.
4007 struct gl_extensions
4009 GLboolean dummy
; /* don't remove this! */
4010 GLboolean dummy_true
; /* Set true by _mesa_init_extensions(). */
4011 GLboolean dummy_false
; /* Set false by _mesa_init_extensions(). */
4012 GLboolean ANGLE_texture_compression_dxt
;
4013 GLboolean ARB_ES2_compatibility
;
4014 GLboolean ARB_ES3_compatibility
;
4015 GLboolean ARB_ES3_1_compatibility
;
4016 GLboolean ARB_ES3_2_compatibility
;
4017 GLboolean ARB_arrays_of_arrays
;
4018 GLboolean ARB_base_instance
;
4019 GLboolean ARB_bindless_texture
;
4020 GLboolean ARB_blend_func_extended
;
4021 GLboolean ARB_buffer_storage
;
4022 GLboolean ARB_clear_texture
;
4023 GLboolean ARB_clip_control
;
4024 GLboolean ARB_color_buffer_float
;
4025 GLboolean ARB_compute_shader
;
4026 GLboolean ARB_compute_variable_group_size
;
4027 GLboolean ARB_conditional_render_inverted
;
4028 GLboolean ARB_conservative_depth
;
4029 GLboolean ARB_copy_image
;
4030 GLboolean ARB_cull_distance
;
4031 GLboolean ARB_depth_buffer_float
;
4032 GLboolean ARB_depth_clamp
;
4033 GLboolean ARB_depth_texture
;
4034 GLboolean ARB_derivative_control
;
4035 GLboolean ARB_draw_buffers_blend
;
4036 GLboolean ARB_draw_elements_base_vertex
;
4037 GLboolean ARB_draw_indirect
;
4038 GLboolean ARB_draw_instanced
;
4039 GLboolean ARB_fragment_coord_conventions
;
4040 GLboolean ARB_fragment_layer_viewport
;
4041 GLboolean ARB_fragment_program
;
4042 GLboolean ARB_fragment_program_shadow
;
4043 GLboolean ARB_fragment_shader
;
4044 GLboolean ARB_framebuffer_no_attachments
;
4045 GLboolean ARB_framebuffer_object
;
4046 GLboolean ARB_enhanced_layouts
;
4047 GLboolean ARB_explicit_attrib_location
;
4048 GLboolean ARB_explicit_uniform_location
;
4049 GLboolean ARB_gpu_shader5
;
4050 GLboolean ARB_gpu_shader_fp64
;
4051 GLboolean ARB_gpu_shader_int64
;
4052 GLboolean ARB_half_float_vertex
;
4053 GLboolean ARB_indirect_parameters
;
4054 GLboolean ARB_instanced_arrays
;
4055 GLboolean ARB_internalformat_query
;
4056 GLboolean ARB_internalformat_query2
;
4057 GLboolean ARB_map_buffer_range
;
4058 GLboolean ARB_occlusion_query
;
4059 GLboolean ARB_occlusion_query2
;
4060 GLboolean ARB_pipeline_statistics_query
;
4061 GLboolean ARB_point_sprite
;
4062 GLboolean ARB_post_depth_coverage
;
4063 GLboolean ARB_query_buffer_object
;
4064 GLboolean ARB_robust_buffer_access_behavior
;
4065 GLboolean ARB_sample_shading
;
4066 GLboolean ARB_seamless_cube_map
;
4067 GLboolean ARB_shader_atomic_counter_ops
;
4068 GLboolean ARB_shader_atomic_counters
;
4069 GLboolean ARB_shader_ballot
;
4070 GLboolean ARB_shader_bit_encoding
;
4071 GLboolean ARB_shader_clock
;
4072 GLboolean ARB_shader_draw_parameters
;
4073 GLboolean ARB_shader_group_vote
;
4074 GLboolean ARB_shader_image_load_store
;
4075 GLboolean ARB_shader_image_size
;
4076 GLboolean ARB_shader_precision
;
4077 GLboolean ARB_shader_stencil_export
;
4078 GLboolean ARB_shader_storage_buffer_object
;
4079 GLboolean ARB_shader_texture_image_samples
;
4080 GLboolean ARB_shader_texture_lod
;
4081 GLboolean ARB_shader_viewport_layer_array
;
4082 GLboolean ARB_shading_language_packing
;
4083 GLboolean ARB_shading_language_420pack
;
4084 GLboolean ARB_shadow
;
4085 GLboolean ARB_sparse_buffer
;
4086 GLboolean ARB_stencil_texturing
;
4088 GLboolean ARB_tessellation_shader
;
4089 GLboolean ARB_texture_border_clamp
;
4090 GLboolean ARB_texture_buffer_object
;
4091 GLboolean ARB_texture_buffer_object_rgb32
;
4092 GLboolean ARB_texture_buffer_range
;
4093 GLboolean ARB_texture_compression_bptc
;
4094 GLboolean ARB_texture_compression_rgtc
;
4095 GLboolean ARB_texture_cube_map
;
4096 GLboolean ARB_texture_cube_map_array
;
4097 GLboolean ARB_texture_env_combine
;
4098 GLboolean ARB_texture_env_crossbar
;
4099 GLboolean ARB_texture_env_dot3
;
4100 GLboolean ARB_texture_float
;
4101 GLboolean ARB_texture_gather
;
4102 GLboolean ARB_texture_mirror_clamp_to_edge
;
4103 GLboolean ARB_texture_multisample
;
4104 GLboolean ARB_texture_non_power_of_two
;
4105 GLboolean ARB_texture_stencil8
;
4106 GLboolean ARB_texture_query_levels
;
4107 GLboolean ARB_texture_query_lod
;
4108 GLboolean ARB_texture_rg
;
4109 GLboolean ARB_texture_rgb10_a2ui
;
4110 GLboolean ARB_texture_view
;
4111 GLboolean ARB_timer_query
;
4112 GLboolean ARB_transform_feedback2
;
4113 GLboolean ARB_transform_feedback3
;
4114 GLboolean ARB_transform_feedback_instanced
;
4115 GLboolean ARB_transform_feedback_overflow_query
;
4116 GLboolean ARB_uniform_buffer_object
;
4117 GLboolean ARB_vertex_attrib_64bit
;
4118 GLboolean ARB_vertex_program
;
4119 GLboolean ARB_vertex_shader
;
4120 GLboolean ARB_vertex_type_10f_11f_11f_rev
;
4121 GLboolean ARB_vertex_type_2_10_10_10_rev
;
4122 GLboolean ARB_viewport_array
;
4123 GLboolean EXT_blend_color
;
4124 GLboolean EXT_blend_equation_separate
;
4125 GLboolean EXT_blend_func_separate
;
4126 GLboolean EXT_blend_minmax
;
4127 GLboolean EXT_depth_bounds_test
;
4128 GLboolean EXT_draw_buffers2
;
4129 GLboolean EXT_framebuffer_multisample
;
4130 GLboolean EXT_framebuffer_multisample_blit_scaled
;
4131 GLboolean EXT_framebuffer_sRGB
;
4132 GLboolean EXT_gpu_program_parameters
;
4133 GLboolean EXT_gpu_shader4
;
4134 GLboolean EXT_packed_float
;
4135 GLboolean EXT_pixel_buffer_object
;
4136 GLboolean EXT_point_parameters
;
4137 GLboolean EXT_polygon_offset_clamp
;
4138 GLboolean EXT_provoking_vertex
;
4139 GLboolean EXT_shader_integer_mix
;
4140 GLboolean EXT_shader_samples_identical
;
4141 GLboolean EXT_stencil_two_side
;
4142 GLboolean EXT_texture_array
;
4143 GLboolean EXT_texture_compression_latc
;
4144 GLboolean EXT_texture_compression_s3tc
;
4145 GLboolean EXT_texture_env_dot3
;
4146 GLboolean EXT_texture_filter_anisotropic
;
4147 GLboolean EXT_texture_integer
;
4148 GLboolean EXT_texture_mirror_clamp
;
4149 GLboolean EXT_texture_shared_exponent
;
4150 GLboolean EXT_texture_snorm
;
4151 GLboolean EXT_texture_sRGB
;
4152 GLboolean EXT_texture_sRGB_decode
;
4153 GLboolean EXT_texture_swizzle
;
4154 GLboolean EXT_transform_feedback
;
4155 GLboolean EXT_timer_query
;
4156 GLboolean EXT_vertex_array_bgra
;
4157 GLboolean EXT_window_rectangles
;
4158 GLboolean OES_copy_image
;
4159 GLboolean OES_primitive_bounding_box
;
4160 GLboolean OES_sample_variables
;
4161 GLboolean OES_standard_derivatives
;
4162 GLboolean OES_texture_buffer
;
4163 GLboolean OES_texture_cube_map_array
;
4164 GLboolean OES_viewport_array
;
4165 /* vendor extensions */
4166 GLboolean AMD_performance_monitor
;
4167 GLboolean AMD_pinned_memory
;
4168 GLboolean AMD_seamless_cubemap_per_texture
;
4169 GLboolean AMD_vertex_shader_layer
;
4170 GLboolean AMD_vertex_shader_viewport_index
;
4171 GLboolean ANDROID_extension_pack_es31a
;
4172 GLboolean APPLE_object_purgeable
;
4173 GLboolean ATI_meminfo
;
4174 GLboolean ATI_texture_compression_3dc
;
4175 GLboolean ATI_texture_mirror_once
;
4176 GLboolean ATI_texture_env_combine3
;
4177 GLboolean ATI_fragment_shader
;
4178 GLboolean ATI_separate_stencil
;
4179 GLboolean GREMEDY_string_marker
;
4180 GLboolean INTEL_conservative_rasterization
;
4181 GLboolean INTEL_performance_query
;
4182 GLboolean KHR_blend_equation_advanced
;
4183 GLboolean KHR_blend_equation_advanced_coherent
;
4184 GLboolean KHR_robustness
;
4185 GLboolean KHR_texture_compression_astc_hdr
;
4186 GLboolean KHR_texture_compression_astc_ldr
;
4187 GLboolean KHR_texture_compression_astc_sliced_3d
;
4188 GLboolean MESA_pack_invert
;
4189 GLboolean MESA_shader_framebuffer_fetch
;
4190 GLboolean MESA_shader_framebuffer_fetch_non_coherent
;
4191 GLboolean MESA_shader_integer_functions
;
4192 GLboolean MESA_ycbcr_texture
;
4193 GLboolean NV_conditional_render
;
4194 GLboolean NV_fill_rectangle
;
4195 GLboolean NV_fog_distance
;
4196 GLboolean NV_point_sprite
;
4197 GLboolean NV_primitive_restart
;
4198 GLboolean NV_texture_barrier
;
4199 GLboolean NV_texture_env_combine4
;
4200 GLboolean NV_texture_rectangle
;
4201 GLboolean NV_vdpau_interop
;
4202 GLboolean NVX_gpu_memory_info
;
4203 GLboolean TDFX_texture_compression_FXT1
;
4204 GLboolean OES_EGL_image
;
4205 GLboolean OES_draw_texture
;
4206 GLboolean OES_depth_texture_cube_map
;
4207 GLboolean OES_EGL_image_external
;
4208 GLboolean OES_texture_float
;
4209 GLboolean OES_texture_float_linear
;
4210 GLboolean OES_texture_half_float
;
4211 GLboolean OES_texture_half_float_linear
;
4212 GLboolean OES_compressed_ETC1_RGB8_texture
;
4213 GLboolean OES_geometry_shader
;
4214 GLboolean OES_texture_compression_astc
;
4215 GLboolean extension_sentinel
;
4216 /** The extension string */
4217 const GLubyte
*String
;
4218 /** Number of supported extensions */
4221 * The context version which extension helper functions compare against.
4222 * By default, the value is equal to ctx->Version. This changes to ~0
4223 * while meta is in progress.
4230 * A stack of matrices (projection, modelview, color, texture, etc).
4232 struct gl_matrix_stack
4234 GLmatrix
*Top
; /**< points into Stack */
4235 GLmatrix
*Stack
; /**< array [MaxDepth] of GLmatrix */
4236 unsigned StackSize
; /**< Number of elements in Stack */
4237 GLuint Depth
; /**< 0 <= Depth < MaxDepth */
4238 GLuint MaxDepth
; /**< size of Stack[] array */
4239 GLuint DirtyFlag
; /**< _NEW_MODELVIEW or _NEW_PROJECTION, for example */
4244 * \name Bits for image transfer operations
4245 * \sa __struct gl_contextRec::ImageTransferState.
4248 #define IMAGE_SCALE_BIAS_BIT 0x1
4249 #define IMAGE_SHIFT_OFFSET_BIT 0x2
4250 #define IMAGE_MAP_COLOR_BIT 0x4
4251 #define IMAGE_CLAMP_BIT 0x800
4254 /** Pixel Transfer ops */
4255 #define IMAGE_BITS (IMAGE_SCALE_BIAS_BIT | \
4256 IMAGE_SHIFT_OFFSET_BIT | \
4257 IMAGE_MAP_COLOR_BIT)
4260 * \name Bits to indicate what state has changed.
4263 #define _NEW_MODELVIEW (1u << 0) /**< gl_context::ModelView */
4264 #define _NEW_PROJECTION (1u << 1) /**< gl_context::Projection */
4265 #define _NEW_TEXTURE_MATRIX (1u << 2) /**< gl_context::TextureMatrix */
4266 #define _NEW_COLOR (1u << 3) /**< gl_context::Color */
4267 #define _NEW_DEPTH (1u << 4) /**< gl_context::Depth */
4268 #define _NEW_EVAL (1u << 5) /**< gl_context::Eval, EvalMap */
4269 #define _NEW_FOG (1u << 6) /**< gl_context::Fog */
4270 #define _NEW_HINT (1u << 7) /**< gl_context::Hint */
4271 #define _NEW_LIGHT (1u << 8) /**< gl_context::Light */
4272 #define _NEW_LINE (1u << 9) /**< gl_context::Line */
4273 #define _NEW_PIXEL (1u << 10) /**< gl_context::Pixel */
4274 #define _NEW_POINT (1u << 11) /**< gl_context::Point */
4275 #define _NEW_POLYGON (1u << 12) /**< gl_context::Polygon */
4276 #define _NEW_POLYGONSTIPPLE (1u << 13) /**< gl_context::PolygonStipple */
4277 #define _NEW_SCISSOR (1u << 14) /**< gl_context::Scissor */
4278 #define _NEW_STENCIL (1u << 15) /**< gl_context::Stencil */
4279 #define _NEW_TEXTURE_OBJECT (1u << 16) /**< gl_context::Texture (bindings only) */
4280 #define _NEW_TRANSFORM (1u << 17) /**< gl_context::Transform */
4281 #define _NEW_VIEWPORT (1u << 18) /**< gl_context::Viewport */
4282 #define _NEW_TEXTURE_STATE (1u << 19) /**< gl_context::Texture (states only) */
4283 #define _NEW_ARRAY (1u << 20) /**< gl_context::Array */
4284 #define _NEW_RENDERMODE (1u << 21) /**< gl_context::RenderMode, etc */
4285 #define _NEW_BUFFERS (1u << 22) /**< gl_context::Visual, DrawBuffer, */
4286 #define _NEW_CURRENT_ATTRIB (1u << 23) /**< gl_context::Current */
4287 #define _NEW_MULTISAMPLE (1u << 24) /**< gl_context::Multisample */
4288 #define _NEW_TRACK_MATRIX (1u << 25) /**< gl_context::VertexProgram */
4289 #define _NEW_PROGRAM (1u << 26) /**< New program/shader state */
4290 #define _NEW_PROGRAM_CONSTANTS (1u << 27)
4291 #define _NEW_BUFFER_OBJECT (1u << 28)
4292 #define _NEW_FRAG_CLAMP (1u << 29)
4293 /* gap, re-use for core Mesa state only; use ctx->DriverFlags otherwise */
4294 #define _NEW_VARYING_VP_INPUTS (1u << 31) /**< gl_context::varying_vp_inputs */
4300 * Composite state flags
4303 #define _NEW_TEXTURE (_NEW_TEXTURE_OBJECT | _NEW_TEXTURE_STATE)
4305 #define _MESA_NEW_NEED_EYE_COORDS (_NEW_LIGHT | \
4306 _NEW_TEXTURE_STATE | \
4311 #define _MESA_NEW_SEPARATE_SPECULAR (_NEW_LIGHT | \
4321 /* This has to be included here. */
4326 * Display list flags.
4327 * Strictly this is a tnl-private concept, but it doesn't seem
4328 * worthwhile adding a tnl private structure just to hold this one bit
4331 #define DLIST_DANGLING_REFS 0x1
4334 /** Opaque declaration of display list payload data type */
4335 union gl_dlist_node
;
4339 * Provide a location where information about a display list can be
4340 * collected. Could be extended with driverPrivate structures,
4341 * etc. in the future.
4343 struct gl_display_list
4346 GLchar
*Label
; /**< GL_KHR_debug */
4347 GLbitfield Flags
; /**< DLIST_x flags */
4348 /** The dlist commands are in a linked list of nodes */
4349 union gl_dlist_node
*Head
;
4354 * State used during display list compilation and execution.
4356 struct gl_dlist_state
4358 GLuint CallDepth
; /**< Current recursion calling depth */
4360 struct gl_display_list
*CurrentList
; /**< List currently being compiled */
4361 union gl_dlist_node
*CurrentBlock
; /**< Pointer to current block of nodes */
4362 GLuint CurrentPos
; /**< Index into current block of nodes */
4364 GLvertexformat ListVtxfmt
;
4366 GLubyte ActiveAttribSize
[VERT_ATTRIB_MAX
];
4367 GLfloat CurrentAttrib
[VERT_ATTRIB_MAX
][4];
4369 GLubyte ActiveMaterialSize
[MAT_ATTRIB_MAX
];
4370 GLfloat CurrentMaterial
[MAT_ATTRIB_MAX
][4];
4373 /* State known to have been set by the currently-compiling display
4374 * list. Used to eliminate some redundant state changes.
4382 * These are a mapping of the GL_ARB_debug_output/GL_KHR_debug enums
4383 * to small enums suitable for use as an array index.
4386 enum mesa_debug_source
{
4387 MESA_DEBUG_SOURCE_API
,
4388 MESA_DEBUG_SOURCE_WINDOW_SYSTEM
,
4389 MESA_DEBUG_SOURCE_SHADER_COMPILER
,
4390 MESA_DEBUG_SOURCE_THIRD_PARTY
,
4391 MESA_DEBUG_SOURCE_APPLICATION
,
4392 MESA_DEBUG_SOURCE_OTHER
,
4393 MESA_DEBUG_SOURCE_COUNT
4396 enum mesa_debug_type
{
4397 MESA_DEBUG_TYPE_ERROR
,
4398 MESA_DEBUG_TYPE_DEPRECATED
,
4399 MESA_DEBUG_TYPE_UNDEFINED
,
4400 MESA_DEBUG_TYPE_PORTABILITY
,
4401 MESA_DEBUG_TYPE_PERFORMANCE
,
4402 MESA_DEBUG_TYPE_OTHER
,
4403 MESA_DEBUG_TYPE_MARKER
,
4404 MESA_DEBUG_TYPE_PUSH_GROUP
,
4405 MESA_DEBUG_TYPE_POP_GROUP
,
4406 MESA_DEBUG_TYPE_COUNT
4409 enum mesa_debug_severity
{
4410 MESA_DEBUG_SEVERITY_LOW
,
4411 MESA_DEBUG_SEVERITY_MEDIUM
,
4412 MESA_DEBUG_SEVERITY_HIGH
,
4413 MESA_DEBUG_SEVERITY_NOTIFICATION
,
4414 MESA_DEBUG_SEVERITY_COUNT
4420 * Driver-specific state flags.
4422 * These are or'd with gl_context::NewDriverState to notify a driver about
4423 * a state change. The driver sets the flags at context creation and
4424 * the meaning of the bits set is opaque to core Mesa.
4426 struct gl_driver_flags
4428 /** gl_context::Array::_DrawArrays (vertex array state) */
4431 /** gl_context::TransformFeedback::CurrentObject */
4432 uint64_t NewTransformFeedback
;
4434 /** gl_context::TransformFeedback::CurrentObject::shader_program */
4435 uint64_t NewTransformFeedbackProg
;
4437 /** gl_context::RasterDiscard */
4438 uint64_t NewRasterizerDiscard
;
4441 * gl_context::UniformBufferBindings
4442 * gl_shader_program::UniformBlocks
4444 uint64_t NewUniformBuffer
;
4447 * gl_context::ShaderStorageBufferBindings
4448 * gl_shader_program::ShaderStorageBlocks
4450 uint64_t NewShaderStorageBuffer
;
4452 uint64_t NewTextureBuffer
;
4455 * gl_context::AtomicBufferBindings
4457 uint64_t NewAtomicBuffer
;
4460 * gl_context::ImageUnits
4462 uint64_t NewImageUnits
;
4465 * gl_context::TessCtrlProgram::patch_default_*
4467 uint64_t NewDefaultTessLevels
;
4470 * gl_context::IntelConservativeRasterization
4472 uint64_t NewIntelConservativeRasterization
;
4475 * gl_context::Scissor::WindowRects
4477 uint64_t NewWindowRectangles
;
4479 /** gl_context::Color::sRGBEnabled */
4480 uint64_t NewFramebufferSRGB
;
4482 /** gl_context::Scissor::EnableFlags */
4483 uint64_t NewScissorTest
;
4485 /** gl_context::Scissor::ScissorArray */
4486 uint64_t NewScissorRect
;
4489 struct gl_uniform_buffer_binding
4491 struct gl_buffer_object
*BufferObject
;
4492 /** Start of uniform block data in the buffer */
4494 /** Size of data allowed to be referenced from the buffer (in bytes) */
4497 * glBindBufferBase() indicates that the Size should be ignored and only
4498 * limited by the current size of the BufferObject.
4500 GLboolean AutomaticSize
;
4503 struct gl_shader_storage_buffer_binding
4505 struct gl_buffer_object
*BufferObject
;
4506 /** Start of shader storage block data in the buffer */
4508 /** Size of data allowed to be referenced from the buffer (in bytes) */
4511 * glBindBufferBase() indicates that the Size should be ignored and only
4512 * limited by the current size of the BufferObject.
4514 GLboolean AutomaticSize
;
4518 * ARB_shader_image_load_store image unit.
4520 struct gl_image_unit
4523 * Texture object bound to this unit.
4525 struct gl_texture_object
*TexObj
;
4528 * Level of the texture object bound to this unit.
4533 * \c GL_TRUE if the whole level is bound as an array of layers, \c
4534 * GL_FALSE if only some specific layer of the texture is bound.
4540 * Layer of the texture object bound to this unit as specified by the
4546 * Layer of the texture object bound to this unit, or zero if the
4547 * whole level is bound.
4552 * Access allowed to this texture image. Either \c GL_READ_ONLY,
4553 * \c GL_WRITE_ONLY or \c GL_READ_WRITE.
4558 * GL internal format that determines the interpretation of the
4559 * image memory when shader image operations are performed through
4565 * Mesa format corresponding to \c Format.
4567 mesa_format _ActualFormat
;
4572 * Binding point for an atomic counter buffer object.
4574 struct gl_atomic_buffer_binding
4576 struct gl_buffer_object
*BufferObject
;
4582 * Shader subroutines storage
4584 struct gl_subroutine_index_binding
4590 struct gl_texture_handle_object
4592 struct gl_texture_object
*texObj
;
4593 struct gl_sampler_object
*sampObj
;
4597 struct gl_image_handle_object
4599 struct gl_image_unit imgObj
;
4604 * Mesa rendering context.
4606 * This is the central context data structure for Mesa. Almost all
4607 * OpenGL state is contained in this structure.
4608 * Think of this as a base class from which device drivers will derive
4613 /** State possibly shared with other contexts in the address space */
4614 struct gl_shared_state
*Shared
;
4616 /** \name API function pointer tables */
4621 * The current dispatch table for non-displaylist-saving execution, either
4622 * BeginEnd or OutsideBeginEnd
4624 struct _glapi_table
*Exec
;
4626 * The normal dispatch table for non-displaylist-saving, non-begin/end
4628 struct _glapi_table
*OutsideBeginEnd
;
4629 /** The dispatch table used between glNewList() and glEndList() */
4630 struct _glapi_table
*Save
;
4632 * The dispatch table used between glBegin() and glEnd() (outside of a
4633 * display list). Only valid functions between those two are set, which is
4634 * mostly just the set in a GLvertexformat struct.
4636 struct _glapi_table
*BeginEnd
;
4638 * Dispatch table for when a graphics reset has happened.
4640 struct _glapi_table
*ContextLost
;
4642 * Dispatch table used to marshal API calls from the client program to a
4643 * separate server thread. NULL if API calls are not being marshalled to
4646 struct _glapi_table
*MarshalExec
;
4648 * Dispatch table currently in use for fielding API calls from the client
4649 * program. If API calls are being marshalled to another thread, this ==
4650 * MarshalExec. Otherwise it == CurrentServerDispatch.
4652 struct _glapi_table
*CurrentClientDispatch
;
4655 * Dispatch table currently in use for performing API calls. == Save or
4658 struct _glapi_table
*CurrentServerDispatch
;
4662 struct glthread_state
*GLThread
;
4664 struct gl_config Visual
;
4665 struct gl_framebuffer
*DrawBuffer
; /**< buffer for writing */
4666 struct gl_framebuffer
*ReadBuffer
; /**< buffer for reading */
4667 struct gl_framebuffer
*WinSysDrawBuffer
; /**< set with MakeCurrent */
4668 struct gl_framebuffer
*WinSysReadBuffer
; /**< set with MakeCurrent */
4671 * Device driver function pointer table
4673 struct dd_function_table Driver
;
4675 /** Core/Driver constants */
4676 struct gl_constants Const
;
4678 /** \name The various 4x4 matrix stacks */
4680 struct gl_matrix_stack ModelviewMatrixStack
;
4681 struct gl_matrix_stack ProjectionMatrixStack
;
4682 struct gl_matrix_stack TextureMatrixStack
[MAX_TEXTURE_UNITS
];
4683 struct gl_matrix_stack ProgramMatrixStack
[MAX_PROGRAM_MATRICES
];
4684 struct gl_matrix_stack
*CurrentStack
; /**< Points to one of the above stacks */
4687 /** Combined modelview and projection matrix */
4688 GLmatrix _ModelProjectMatrix
;
4690 /** \name Display lists */
4691 struct gl_dlist_state ListState
;
4693 GLboolean ExecuteFlag
; /**< Execute GL commands? */
4694 GLboolean CompileFlag
; /**< Compile GL commands into display list? */
4696 /** Extension information */
4697 struct gl_extensions Extensions
;
4699 /** GL version integer, for example 31 for GL 3.1, or 20 for GLES 2.0. */
4701 char *VersionString
;
4703 /** \name State attribute stack (for glPush/PopAttrib) */
4705 GLuint AttribStackDepth
;
4706 struct gl_attrib_node
*AttribStack
[MAX_ATTRIB_STACK_DEPTH
];
4709 /** \name Renderer attribute groups
4711 * We define a struct for each attribute group to make pushing and popping
4712 * attributes easy. Also it's a good organization.
4715 struct gl_accum_attrib Accum
; /**< Accum buffer attributes */
4716 struct gl_colorbuffer_attrib Color
; /**< Color buffer attributes */
4717 struct gl_current_attrib Current
; /**< Current attributes */
4718 struct gl_depthbuffer_attrib Depth
; /**< Depth buffer attributes */
4719 struct gl_eval_attrib Eval
; /**< Eval attributes */
4720 struct gl_fog_attrib Fog
; /**< Fog attributes */
4721 struct gl_hint_attrib Hint
; /**< Hint attributes */
4722 struct gl_light_attrib Light
; /**< Light attributes */
4723 struct gl_line_attrib Line
; /**< Line attributes */
4724 struct gl_list_attrib List
; /**< List attributes */
4725 struct gl_multisample_attrib Multisample
;
4726 struct gl_pixel_attrib Pixel
; /**< Pixel attributes */
4727 struct gl_point_attrib Point
; /**< Point attributes */
4728 struct gl_polygon_attrib Polygon
; /**< Polygon attributes */
4729 GLuint PolygonStipple
[32]; /**< Polygon stipple */
4730 struct gl_scissor_attrib Scissor
; /**< Scissor attributes */
4731 struct gl_stencil_attrib Stencil
; /**< Stencil buffer attributes */
4732 struct gl_texture_attrib Texture
; /**< Texture attributes */
4733 struct gl_transform_attrib Transform
; /**< Transformation attributes */
4734 struct gl_viewport_attrib ViewportArray
[MAX_VIEWPORTS
]; /**< Viewport attributes */
4737 /** \name Client attribute stack */
4739 GLuint ClientAttribStackDepth
;
4740 struct gl_attrib_node
*ClientAttribStack
[MAX_CLIENT_ATTRIB_STACK_DEPTH
];
4743 /** \name Client attribute groups */
4745 struct gl_array_attrib Array
; /**< Vertex arrays */
4746 struct gl_pixelstore_attrib Pack
; /**< Pixel packing */
4747 struct gl_pixelstore_attrib Unpack
; /**< Pixel unpacking */
4748 struct gl_pixelstore_attrib DefaultPacking
; /**< Default params */
4751 /** \name Other assorted state (not pushed/popped on attribute stack) */
4753 struct gl_pixelmaps PixelMaps
;
4755 struct gl_evaluators EvalMap
; /**< All evaluators */
4756 struct gl_feedback Feedback
; /**< Feedback */
4757 struct gl_selection Select
; /**< Selection */
4759 struct gl_program_state Program
; /**< general program state */
4760 struct gl_vertex_program_state VertexProgram
;
4761 struct gl_fragment_program_state FragmentProgram
;
4762 struct gl_geometry_program_state GeometryProgram
;
4763 struct gl_compute_program_state ComputeProgram
;
4764 struct gl_tess_ctrl_program_state TessCtrlProgram
;
4765 struct gl_tess_eval_program_state TessEvalProgram
;
4766 struct gl_ati_fragment_shader_state ATIFragmentShader
;
4768 struct gl_pipeline_shader_state Pipeline
; /**< GLSL pipeline shader object state */
4769 struct gl_pipeline_object Shader
; /**< GLSL shader object state */
4772 * Current active shader pipeline state
4774 * Almost all internal users want ::_Shader instead of ::Shader. The
4775 * exceptions are bits of legacy GLSL API that do not know about separate
4778 * If a program is active via \c glUseProgram, this will point to
4781 * If a program pipeline is active via \c glBindProgramPipeline, this will
4782 * point to \c ::Pipeline.Current.
4784 * If neither a program nor a program pipeline is active, this will point to
4785 * \c ::Pipeline.Default. This ensures that \c ::_Shader will never be
4788 struct gl_pipeline_object
*_Shader
;
4790 struct gl_query_state Query
; /**< occlusion, timer queries */
4792 struct gl_transform_feedback_state TransformFeedback
;
4794 struct gl_perf_monitor_state PerfMonitor
;
4795 struct gl_perf_query_state PerfQuery
;
4797 struct gl_buffer_object
*DrawIndirectBuffer
; /** < GL_ARB_draw_indirect */
4798 struct gl_buffer_object
*ParameterBuffer
; /** < GL_ARB_indirect_parameters */
4799 struct gl_buffer_object
*DispatchIndirectBuffer
; /** < GL_ARB_compute_shader */
4801 struct gl_buffer_object
*CopyReadBuffer
; /**< GL_ARB_copy_buffer */
4802 struct gl_buffer_object
*CopyWriteBuffer
; /**< GL_ARB_copy_buffer */
4804 struct gl_buffer_object
*QueryBuffer
; /**< GL_ARB_query_buffer_object */
4807 * Current GL_ARB_uniform_buffer_object binding referenced by
4808 * GL_UNIFORM_BUFFER target for glBufferData, glMapBuffer, etc.
4810 struct gl_buffer_object
*UniformBuffer
;
4813 * Current GL_ARB_shader_storage_buffer_object binding referenced by
4814 * GL_SHADER_STORAGE_BUFFER target for glBufferData, glMapBuffer, etc.
4816 struct gl_buffer_object
*ShaderStorageBuffer
;
4819 * Array of uniform buffers for GL_ARB_uniform_buffer_object and GL 3.1.
4820 * This is set up using glBindBufferRange() or glBindBufferBase(). They are
4821 * associated with uniform blocks by glUniformBlockBinding()'s state in the
4824 struct gl_uniform_buffer_binding
4825 UniformBufferBindings
[MAX_COMBINED_UNIFORM_BUFFERS
];
4828 * Array of shader storage buffers for ARB_shader_storage_buffer_object
4829 * and GL 4.3. This is set up using glBindBufferRange() or
4830 * glBindBufferBase(). They are associated with shader storage blocks by
4831 * glShaderStorageBlockBinding()'s state in the shader program.
4833 struct gl_shader_storage_buffer_binding
4834 ShaderStorageBufferBindings
[MAX_COMBINED_SHADER_STORAGE_BUFFERS
];
4837 * Object currently associated with the GL_ATOMIC_COUNTER_BUFFER
4840 struct gl_buffer_object
*AtomicBuffer
;
4843 * Object currently associated w/ the GL_EXTERNAL_VIRTUAL_MEMORY_BUFFER_AMD
4846 struct gl_buffer_object
*ExternalVirtualMemoryBuffer
;
4849 * Array of atomic counter buffer binding points.
4851 struct gl_atomic_buffer_binding
4852 AtomicBufferBindings
[MAX_COMBINED_ATOMIC_BUFFERS
];
4855 * Array of image units for ARB_shader_image_load_store.
4857 struct gl_image_unit ImageUnits
[MAX_IMAGE_UNITS
];
4859 struct gl_subroutine_index_binding SubroutineIndex
[MESA_SHADER_STAGES
];
4862 struct gl_meta_state
*Meta
; /**< for "meta" operations */
4864 /* GL_EXT_framebuffer_object */
4865 struct gl_renderbuffer
*CurrentRenderbuffer
;
4867 GLenum ErrorValue
; /**< Last error code */
4870 * Recognize and silence repeated error debug messages in buggy apps.
4872 const char *ErrorDebugFmtString
;
4873 GLuint ErrorDebugCount
;
4875 /* GL_ARB_debug_output/GL_KHR_debug */
4877 struct gl_debug_state
*Debug
;
4879 GLenum RenderMode
; /**< either GL_RENDER, GL_SELECT, GL_FEEDBACK */
4880 GLbitfield NewState
; /**< bitwise-or of _NEW_* flags */
4881 uint64_t NewDriverState
; /**< bitwise-or of flags from DriverFlags */
4883 struct gl_driver_flags DriverFlags
;
4885 GLboolean ViewportInitialized
; /**< has viewport size been initialized? */
4887 GLbitfield64 varying_vp_inputs
; /**< mask of VERT_BIT_* flags */
4889 /** \name Derived state */
4890 GLbitfield _ImageTransferState
;/**< bitwise-or of IMAGE_*_BIT flags */
4891 GLfloat _EyeZDir
[3];
4892 GLfloat _ModelViewInvScale
;
4893 GLboolean _NeedEyeCoords
;
4894 GLboolean _ForceEyeCoords
;
4896 GLuint TextureStateTimestamp
; /**< detect changes to shared state */
4898 struct gl_list_extensions
*ListExt
; /**< driver dlist extensions */
4900 /** \name For debugging/development only */
4902 GLboolean FirstTimeCurrent
;
4906 * False if this context was created without a config. This is needed
4907 * because the initial state of glDrawBuffers depends on this
4909 GLboolean HasConfig
;
4911 /** software compression/decompression supported or not */
4912 GLboolean Mesa_DXTn
;
4914 GLboolean TextureFormatSupported
[MESA_FORMAT_COUNT
];
4916 GLboolean RasterDiscard
; /**< GL_RASTERIZER_DISCARD */
4917 GLboolean IntelConservativeRasterization
; /**< GL_INTEL_CONSERVATIVE_RASTERIZATION */
4920 * \name Hooks for module contexts.
4922 * These will eventually live in the driver or elsewhere.
4925 void *swrast_context
;
4926 void *swsetup_context
;
4927 void *swtnl_context
;
4928 struct vbo_context
*vbo_context
;
4929 struct st_context
*st
;
4934 * \name NV_vdpau_interop
4937 const void *vdpDevice
;
4938 const void *vdpGetProcAddress
;
4939 struct set
*vdpSurfaces
;
4943 * Has this context observed a GPU reset in any context in the share group?
4945 * Once this field becomes true, it is never reset to false.
4947 GLboolean ShareGroupReset
;
4950 * \name OES_primitive_bounding_box
4952 * Stores the arguments to glPrimitiveBoundingBox
4954 GLfloat PrimitiveBoundingBox
[8];
4956 struct disk_cache
*Cache
;
4959 * \name GL_ARB_bindless_texture
4962 struct hash_table_u64
*ResidentTextureHandles
;
4963 struct hash_table_u64
*ResidentImageHandles
;
4968 * Information about memory usage. All sizes are in kilobytes.
4970 struct gl_memory_info
4972 unsigned total_device_memory
; /**< size of device memory, e.g. VRAM */
4973 unsigned avail_device_memory
; /**< free device memory at the moment */
4974 unsigned total_staging_memory
; /**< size of staging memory, e.g. GART */
4975 unsigned avail_staging_memory
; /**< free staging memory at the moment */
4976 unsigned device_memory_evicted
; /**< size of memory evicted (monotonic counter) */
4977 unsigned nr_device_memory_evictions
; /**< # of evictions (monotonic counter) */
4981 extern int MESA_VERBOSE
;
4982 extern int MESA_DEBUG_FLAGS
;
4983 # define MESA_FUNCTION __func__
4985 # define MESA_VERBOSE 0
4986 # define MESA_DEBUG_FLAGS 0
4987 # define MESA_FUNCTION "a function"
4991 /** The MESA_VERBOSE var is a bitmask of these flags */
4994 VERBOSE_VARRAY
= 0x0001,
4995 VERBOSE_TEXTURE
= 0x0002,
4996 VERBOSE_MATERIAL
= 0x0004,
4997 VERBOSE_PIPELINE
= 0x0008,
4998 VERBOSE_DRIVER
= 0x0010,
4999 VERBOSE_STATE
= 0x0020,
5000 VERBOSE_API
= 0x0040,
5001 VERBOSE_DISPLAY_LIST
= 0x0100,
5002 VERBOSE_LIGHTING
= 0x0200,
5003 VERBOSE_PRIMS
= 0x0400,
5004 VERBOSE_VERTS
= 0x0800,
5005 VERBOSE_DISASSEM
= 0x1000,
5006 VERBOSE_DRAW
= 0x2000,
5007 VERBOSE_SWAPBUFFERS
= 0x4000
5011 /** The MESA_DEBUG_FLAGS var is a bitmask of these flags */
5014 DEBUG_SILENT
= (1 << 0),
5015 DEBUG_ALWAYS_FLUSH
= (1 << 1),
5016 DEBUG_INCOMPLETE_TEXTURE
= (1 << 2),
5017 DEBUG_INCOMPLETE_FBO
= (1 << 3),
5018 DEBUG_CONTEXT
= (1 << 4)
5025 #endif /* MTYPES_H */