2 * Mesa 3-D graphics library
4 * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
5 * Copyright (C) 2009 VMware, Inc. All Rights Reserved.
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the "Software"),
9 * to deal in the Software without restriction, including without limitation
10 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11 * and/or sell copies of the Software, and to permit persons to whom the
12 * Software is furnished to do so, subject to the following conditions:
14 * The above copyright notice and this permission notice shall be included
15 * in all copies or substantial portions of the Software.
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
21 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
22 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
23 * OTHER DEALINGS IN THE SOFTWARE.
28 * Main Mesa data structures.
30 * Please try to mark derived values with a leading underscore ('_').
37 #include <stdint.h> /* uint32_t */
39 #include "c11/threads.h"
41 #include "main/glheader.h"
42 #include "main/menums.h"
43 #include "main/config.h"
44 #include "glapi/glapi.h"
45 #include "math/m_matrix.h" /* GLmatrix */
46 #include "compiler/shader_enums.h"
47 #include "compiler/shader_info.h"
48 #include "main/formats.h" /* MESA_FORMAT_COUNT */
49 #include "compiler/glsl/list.h"
50 #include "util/simple_mtx.h"
51 #include "util/u_dynarray.h"
58 #define GET_COLORMASK_BIT(mask, buf, chan) (((mask) >> (4 * (buf) + (chan))) & 0x1)
59 #define GET_COLORMASK(mask, buf) (((mask) >> (4 * (buf))) & 0xf)
63 * \name Some forward type declarations
66 struct _mesa_HashTable
;
67 struct gl_attrib_node
;
68 struct gl_list_extensions
;
70 struct gl_program_cache
;
71 struct gl_texture_object
;
72 struct gl_debug_state
;
75 struct gl_uniform_storage
;
76 struct prog_instruction
;
77 struct gl_program_parameter_list
;
78 struct gl_shader_spirv_data
;
84 /** Extra draw modes beyond GL_POINTS, GL_TRIANGLE_FAN, etc */
85 #define PRIM_MAX GL_PATCHES
86 #define PRIM_OUTSIDE_BEGIN_END (PRIM_MAX + 1)
87 #define PRIM_UNKNOWN (PRIM_MAX + 2)
90 * Determine if the given gl_varying_slot appears in the fragment shader.
92 static inline GLboolean
93 _mesa_varying_slot_in_fs(gl_varying_slot slot
)
96 case VARYING_SLOT_PSIZ
:
97 case VARYING_SLOT_BFC0
:
98 case VARYING_SLOT_BFC1
:
99 case VARYING_SLOT_EDGE
:
100 case VARYING_SLOT_CLIP_VERTEX
:
101 case VARYING_SLOT_LAYER
:
102 case VARYING_SLOT_TESS_LEVEL_OUTER
:
103 case VARYING_SLOT_TESS_LEVEL_INNER
:
104 case VARYING_SLOT_BOUNDING_BOX0
:
105 case VARYING_SLOT_BOUNDING_BOX1
:
113 * Bit flags for all renderbuffers
115 #define BUFFER_BIT_FRONT_LEFT (1 << BUFFER_FRONT_LEFT)
116 #define BUFFER_BIT_BACK_LEFT (1 << BUFFER_BACK_LEFT)
117 #define BUFFER_BIT_FRONT_RIGHT (1 << BUFFER_FRONT_RIGHT)
118 #define BUFFER_BIT_BACK_RIGHT (1 << BUFFER_BACK_RIGHT)
119 #define BUFFER_BIT_AUX0 (1 << BUFFER_AUX0)
120 #define BUFFER_BIT_AUX1 (1 << BUFFER_AUX1)
121 #define BUFFER_BIT_AUX2 (1 << BUFFER_AUX2)
122 #define BUFFER_BIT_AUX3 (1 << BUFFER_AUX3)
123 #define BUFFER_BIT_DEPTH (1 << BUFFER_DEPTH)
124 #define BUFFER_BIT_STENCIL (1 << BUFFER_STENCIL)
125 #define BUFFER_BIT_ACCUM (1 << BUFFER_ACCUM)
126 #define BUFFER_BIT_COLOR0 (1 << BUFFER_COLOR0)
127 #define BUFFER_BIT_COLOR1 (1 << BUFFER_COLOR1)
128 #define BUFFER_BIT_COLOR2 (1 << BUFFER_COLOR2)
129 #define BUFFER_BIT_COLOR3 (1 << BUFFER_COLOR3)
130 #define BUFFER_BIT_COLOR4 (1 << BUFFER_COLOR4)
131 #define BUFFER_BIT_COLOR5 (1 << BUFFER_COLOR5)
132 #define BUFFER_BIT_COLOR6 (1 << BUFFER_COLOR6)
133 #define BUFFER_BIT_COLOR7 (1 << BUFFER_COLOR7)
136 * Mask of all the color buffer bits (but not accum).
138 #define BUFFER_BITS_COLOR (BUFFER_BIT_FRONT_LEFT | \
139 BUFFER_BIT_BACK_LEFT | \
140 BUFFER_BIT_FRONT_RIGHT | \
141 BUFFER_BIT_BACK_RIGHT | \
143 BUFFER_BIT_COLOR0 | \
144 BUFFER_BIT_COLOR1 | \
145 BUFFER_BIT_COLOR2 | \
146 BUFFER_BIT_COLOR3 | \
147 BUFFER_BIT_COLOR4 | \
148 BUFFER_BIT_COLOR5 | \
149 BUFFER_BIT_COLOR6 | \
152 /* Mask of bits for depth+stencil buffers */
153 #define BUFFER_BITS_DEPTH_STENCIL (BUFFER_BIT_DEPTH | BUFFER_BIT_STENCIL)
156 * Framebuffer configuration (aka visual / pixelformat)
157 * Note: some of these fields should be boolean, but it appears that
158 * code in drivers/dri/common/util.c requires int-sized fields.
164 GLuint doubleBufferMode
;
167 GLboolean haveAccumBuffer
;
168 GLboolean haveDepthBuffer
;
169 GLboolean haveStencilBuffer
;
171 GLint redBits
, greenBits
, blueBits
, alphaBits
; /* bits per comp */
172 GLuint redMask
, greenMask
, blueMask
, alphaMask
;
173 GLint rgbBits
; /* total bits for rgb */
174 GLint indexBits
; /* total bits for colorindex */
176 GLint accumRedBits
, accumGreenBits
, accumBlueBits
, accumAlphaBits
;
184 /* EXT_visual_rating / GLX 1.2 */
187 /* EXT_visual_info / GLX 1.2 */
188 GLint transparentPixel
;
189 /* colors are floats scaled to ints */
190 GLint transparentRed
, transparentGreen
, transparentBlue
, transparentAlpha
;
191 GLint transparentIndex
;
193 /* ARB_multisample / SGIS_multisample */
197 /* SGIX_pbuffer / GLX 1.3 */
198 GLint maxPbufferWidth
;
199 GLint maxPbufferHeight
;
200 GLint maxPbufferPixels
;
201 GLint optimalPbufferWidth
; /* Only for SGIX_pbuffer. */
202 GLint optimalPbufferHeight
; /* Only for SGIX_pbuffer. */
204 /* OML_swap_method */
207 /* EXT_texture_from_pixmap */
208 GLint bindToTextureRgb
;
209 GLint bindToTextureRgba
;
210 GLint bindToMipmapTexture
;
211 GLint bindToTextureTargets
;
214 /* EXT_framebuffer_sRGB */
217 /* EGL_KHR_mutable_render_buffer */
218 GLuint mutableRenderBuffer
; /* bool */
223 * \name Bit flags used for updating material values.
226 #define MAT_ATTRIB_FRONT_AMBIENT 0
227 #define MAT_ATTRIB_BACK_AMBIENT 1
228 #define MAT_ATTRIB_FRONT_DIFFUSE 2
229 #define MAT_ATTRIB_BACK_DIFFUSE 3
230 #define MAT_ATTRIB_FRONT_SPECULAR 4
231 #define MAT_ATTRIB_BACK_SPECULAR 5
232 #define MAT_ATTRIB_FRONT_EMISSION 6
233 #define MAT_ATTRIB_BACK_EMISSION 7
234 #define MAT_ATTRIB_FRONT_SHININESS 8
235 #define MAT_ATTRIB_BACK_SHININESS 9
236 #define MAT_ATTRIB_FRONT_INDEXES 10
237 #define MAT_ATTRIB_BACK_INDEXES 11
238 #define MAT_ATTRIB_MAX 12
240 #define MAT_ATTRIB_AMBIENT(f) (MAT_ATTRIB_FRONT_AMBIENT+(f))
241 #define MAT_ATTRIB_DIFFUSE(f) (MAT_ATTRIB_FRONT_DIFFUSE+(f))
242 #define MAT_ATTRIB_SPECULAR(f) (MAT_ATTRIB_FRONT_SPECULAR+(f))
243 #define MAT_ATTRIB_EMISSION(f) (MAT_ATTRIB_FRONT_EMISSION+(f))
244 #define MAT_ATTRIB_SHININESS(f)(MAT_ATTRIB_FRONT_SHININESS+(f))
245 #define MAT_ATTRIB_INDEXES(f) (MAT_ATTRIB_FRONT_INDEXES+(f))
247 #define MAT_BIT_FRONT_AMBIENT (1<<MAT_ATTRIB_FRONT_AMBIENT)
248 #define MAT_BIT_BACK_AMBIENT (1<<MAT_ATTRIB_BACK_AMBIENT)
249 #define MAT_BIT_FRONT_DIFFUSE (1<<MAT_ATTRIB_FRONT_DIFFUSE)
250 #define MAT_BIT_BACK_DIFFUSE (1<<MAT_ATTRIB_BACK_DIFFUSE)
251 #define MAT_BIT_FRONT_SPECULAR (1<<MAT_ATTRIB_FRONT_SPECULAR)
252 #define MAT_BIT_BACK_SPECULAR (1<<MAT_ATTRIB_BACK_SPECULAR)
253 #define MAT_BIT_FRONT_EMISSION (1<<MAT_ATTRIB_FRONT_EMISSION)
254 #define MAT_BIT_BACK_EMISSION (1<<MAT_ATTRIB_BACK_EMISSION)
255 #define MAT_BIT_FRONT_SHININESS (1<<MAT_ATTRIB_FRONT_SHININESS)
256 #define MAT_BIT_BACK_SHININESS (1<<MAT_ATTRIB_BACK_SHININESS)
257 #define MAT_BIT_FRONT_INDEXES (1<<MAT_ATTRIB_FRONT_INDEXES)
258 #define MAT_BIT_BACK_INDEXES (1<<MAT_ATTRIB_BACK_INDEXES)
261 #define FRONT_MATERIAL_BITS (MAT_BIT_FRONT_EMISSION | \
262 MAT_BIT_FRONT_AMBIENT | \
263 MAT_BIT_FRONT_DIFFUSE | \
264 MAT_BIT_FRONT_SPECULAR | \
265 MAT_BIT_FRONT_SHININESS | \
266 MAT_BIT_FRONT_INDEXES)
268 #define BACK_MATERIAL_BITS (MAT_BIT_BACK_EMISSION | \
269 MAT_BIT_BACK_AMBIENT | \
270 MAT_BIT_BACK_DIFFUSE | \
271 MAT_BIT_BACK_SPECULAR | \
272 MAT_BIT_BACK_SHININESS | \
273 MAT_BIT_BACK_INDEXES)
275 #define ALL_MATERIAL_BITS (FRONT_MATERIAL_BITS | BACK_MATERIAL_BITS)
284 GLfloat Attrib
[MAT_ATTRIB_MAX
][4];
292 #define LIGHT_SPOT 0x1
293 #define LIGHT_LOCAL_VIEWER 0x2
294 #define LIGHT_POSITIONAL 0x4
295 #define LIGHT_NEED_VERTICES (LIGHT_POSITIONAL|LIGHT_LOCAL_VIEWER)
300 * Light source state.
304 GLfloat Ambient
[4]; /**< ambient color */
305 GLfloat Diffuse
[4]; /**< diffuse color */
306 GLfloat Specular
[4]; /**< specular color */
307 GLfloat EyePosition
[4]; /**< position in eye coordinates */
308 GLfloat SpotDirection
[4]; /**< spotlight direction in eye coordinates */
309 GLfloat SpotExponent
;
310 GLfloat SpotCutoff
; /**< in degrees */
311 GLfloat _CosCutoff
; /**< = MAX(0, cos(SpotCutoff)) */
312 GLfloat ConstantAttenuation
;
313 GLfloat LinearAttenuation
;
314 GLfloat QuadraticAttenuation
;
315 GLboolean Enabled
; /**< On/off flag */
318 * \name Derived fields
321 GLbitfield _Flags
; /**< Mask of LIGHT_x bits defined above */
323 GLfloat _Position
[4]; /**< position in eye/obj coordinates */
324 GLfloat _VP_inf_norm
[3]; /**< Norm direction to infinite light */
325 GLfloat _h_inf_norm
[3]; /**< Norm( _VP_inf_norm + <0,0,1> ) */
326 GLfloat _NormSpotDirection
[4]; /**< normalized spotlight direction */
327 GLfloat _VP_inf_spot_attenuation
;
329 GLfloat _MatAmbient
[2][3]; /**< material ambient * light ambient */
330 GLfloat _MatDiffuse
[2][3]; /**< material diffuse * light diffuse */
331 GLfloat _MatSpecular
[2][3]; /**< material spec * light specular */
341 GLfloat Ambient
[4]; /**< ambient color */
342 GLboolean LocalViewer
; /**< Local (or infinite) view point? */
343 GLboolean TwoSide
; /**< Two (or one) sided lighting? */
344 GLenum16 ColorControl
; /**< either GL_SINGLE_COLOR
345 or GL_SEPARATE_SPECULAR_COLOR */
350 * Accumulation buffer attribute group (GL_ACCUM_BUFFER_BIT)
352 struct gl_accum_attrib
354 GLfloat ClearColor
[4]; /**< Accumulation buffer clear color */
359 * Used for storing clear color, texture border color, etc.
360 * The float values are typically unclamped.
371 * Color buffer attribute group (GL_COLOR_BUFFER_BIT).
373 struct gl_colorbuffer_attrib
375 GLuint ClearIndex
; /**< Index for glClear */
376 union gl_color_union ClearColor
; /**< Color for glClear, unclamped */
377 GLuint IndexMask
; /**< Color index write mask */
379 /** 4 colormask bits per draw buffer, max 8 draw buffers. 4*8 = 32 bits */
380 GLbitfield ColorMask
;
382 GLenum16 DrawBuffer
[MAX_DRAW_BUFFERS
]; /**< Which buffer to draw into */
385 * \name alpha testing
388 GLboolean AlphaEnabled
; /**< Alpha test enabled flag */
389 GLenum16 AlphaFunc
; /**< Alpha test function */
390 GLfloat AlphaRefUnclamped
;
391 GLclampf AlphaRef
; /**< Alpha reference value */
398 GLbitfield BlendEnabled
; /**< Per-buffer blend enable flags */
400 /* NOTE: this does _not_ depend on fragment clamping or any other clamping
401 * control, only on the fixed-pointness of the render target.
402 * The query does however depend on fragment color clamping.
404 GLfloat BlendColorUnclamped
[4]; /**< Blending color */
405 GLfloat BlendColor
[4]; /**< Blending color */
409 GLenum16 SrcRGB
; /**< RGB blend source term */
410 GLenum16 DstRGB
; /**< RGB blend dest term */
411 GLenum16 SrcA
; /**< Alpha blend source term */
412 GLenum16 DstA
; /**< Alpha blend dest term */
413 GLenum16 EquationRGB
; /**< GL_ADD, GL_SUBTRACT, etc. */
414 GLenum16 EquationA
; /**< GL_ADD, GL_SUBTRACT, etc. */
416 * Set if any blend factor uses SRC1. Computed at the time blend factors
419 GLboolean _UsesDualSrc
;
420 } Blend
[MAX_DRAW_BUFFERS
];
421 /** Are the blend func terms currently different for each buffer/target? */
422 GLboolean _BlendFuncPerBuffer
;
423 /** Are the blend equations currently different for each buffer/target? */
424 GLboolean _BlendEquationPerBuffer
;
427 * Which advanced blending mode is in use (or BLEND_NONE).
429 * KHR_blend_equation_advanced only allows advanced blending with a single
430 * draw buffer, and NVX_blend_equation_advanced_multi_draw_buffer still
431 * requires all draw buffers to match, so we only need a single value.
433 enum gl_advanced_blend_mode _AdvancedBlendMode
;
435 /** Coherency requested via glEnable(GL_BLEND_ADVANCED_COHERENT_KHR)? */
443 GLboolean IndexLogicOpEnabled
; /**< Color index logic op enabled flag */
444 GLboolean ColorLogicOpEnabled
; /**< RGBA logic op enabled flag */
445 GLenum16 LogicOp
; /**< Logic operator */
446 enum gl_logicop_mode _LogicOp
;
449 GLboolean DitherFlag
; /**< Dither enable flag */
451 GLboolean _ClampFragmentColor
; /** < with GL_FIXED_ONLY_ARB resolved */
452 GLenum16 ClampFragmentColor
; /**< GL_TRUE, GL_FALSE or GL_FIXED_ONLY_ARB */
453 GLenum16 ClampReadColor
; /**< GL_TRUE, GL_FALSE or GL_FIXED_ONLY_ARB */
455 GLboolean sRGBEnabled
; /**< Framebuffer sRGB blending/updating requested */
460 * Current attribute group (GL_CURRENT_BIT).
462 struct gl_current_attrib
465 * \name Current vertex attributes (color, texcoords, etc).
466 * \note Values are valid only after FLUSH_VERTICES has been called.
467 * \note Index and Edgeflag current values are stored as floats in the
468 * SIX and SEVEN attribute slots.
469 * \note We need double storage for 64-bit vertex attributes
471 GLfloat Attrib
[VERT_ATTRIB_MAX
][4*2];
474 * \name Current raster position attributes (always up to date after a
477 GLfloat RasterPos
[4];
478 GLfloat RasterDistance
;
479 GLfloat RasterColor
[4];
480 GLfloat RasterSecondaryColor
[4];
481 GLfloat RasterTexCoords
[MAX_TEXTURE_COORD_UNITS
][4];
482 GLboolean RasterPosValid
;
487 * Depth buffer attribute group (GL_DEPTH_BUFFER_BIT).
489 struct gl_depthbuffer_attrib
491 GLenum16 Func
; /**< Function for depth buffer compare */
492 GLclampd Clear
; /**< Value to clear depth buffer to */
493 GLboolean Test
; /**< Depth buffering enabled flag */
494 GLboolean Mask
; /**< Depth buffer writable? */
495 GLboolean BoundsTest
; /**< GL_EXT_depth_bounds_test */
496 GLfloat BoundsMin
, BoundsMax
;/**< GL_EXT_depth_bounds_test */
501 * Evaluator attribute group (GL_EVAL_BIT).
503 struct gl_eval_attrib
509 GLboolean Map1Color4
;
511 GLboolean Map1Normal
;
512 GLboolean Map1TextureCoord1
;
513 GLboolean Map1TextureCoord2
;
514 GLboolean Map1TextureCoord3
;
515 GLboolean Map1TextureCoord4
;
516 GLboolean Map1Vertex3
;
517 GLboolean Map1Vertex4
;
518 GLboolean Map2Color4
;
520 GLboolean Map2Normal
;
521 GLboolean Map2TextureCoord1
;
522 GLboolean Map2TextureCoord2
;
523 GLboolean Map2TextureCoord3
;
524 GLboolean Map2TextureCoord4
;
525 GLboolean Map2Vertex3
;
526 GLboolean Map2Vertex4
;
527 GLboolean AutoNormal
;
531 * \name Map Grid endpoints and divisions and calculated du values
535 GLfloat MapGrid1u1
, MapGrid1u2
, MapGrid1du
;
536 GLint MapGrid2un
, MapGrid2vn
;
537 GLfloat MapGrid2u1
, MapGrid2u2
, MapGrid2du
;
538 GLfloat MapGrid2v1
, MapGrid2v2
, MapGrid2dv
;
544 * Compressed fog mode.
556 * Fog attribute group (GL_FOG_BIT).
560 GLboolean Enabled
; /**< Fog enabled flag */
561 GLboolean ColorSumEnabled
;
562 uint8_t _PackedMode
; /**< Fog mode as 2 bits */
563 uint8_t _PackedEnabledMode
; /**< Masked CompressedMode */
564 GLfloat ColorUnclamped
[4]; /**< Fog color */
565 GLfloat Color
[4]; /**< Fog color */
566 GLfloat Density
; /**< Density >= 0.0 */
567 GLfloat Start
; /**< Start distance in eye coords */
568 GLfloat End
; /**< End distance in eye coords */
569 GLfloat Index
; /**< Fog index */
570 GLenum16 Mode
; /**< Fog mode */
571 GLenum16 FogCoordinateSource
;/**< GL_EXT_fog_coord */
572 GLenum16 FogDistanceMode
; /**< GL_NV_fog_distance */
577 * Hint attribute group (GL_HINT_BIT).
579 * Values are always one of GL_FASTEST, GL_NICEST, or GL_DONT_CARE.
581 struct gl_hint_attrib
583 GLenum16 PerspectiveCorrection
;
584 GLenum16 PointSmooth
;
586 GLenum16 PolygonSmooth
;
588 GLenum16 TextureCompression
; /**< GL_ARB_texture_compression */
589 GLenum16 GenerateMipmap
; /**< GL_SGIS_generate_mipmap */
590 GLenum16 FragmentShaderDerivative
; /**< GL_ARB_fragment_shader */
595 * Lighting attribute group (GL_LIGHT_BIT).
597 struct gl_light_attrib
599 struct gl_light Light
[MAX_LIGHTS
]; /**< Array of light sources */
600 struct gl_lightmodel Model
; /**< Lighting model */
603 * Front and back material values.
604 * Note: must call FLUSH_VERTICES() before using.
606 struct gl_material Material
;
608 GLboolean Enabled
; /**< Lighting enabled flag */
609 GLboolean ColorMaterialEnabled
;
611 GLenum16 ShadeModel
; /**< GL_FLAT or GL_SMOOTH */
612 GLenum16 ProvokingVertex
; /**< GL_EXT_provoking_vertex */
613 GLenum16 ColorMaterialFace
; /**< GL_FRONT, BACK or FRONT_AND_BACK */
614 GLenum16 ColorMaterialMode
; /**< GL_AMBIENT, GL_DIFFUSE, etc */
615 GLbitfield _ColorMaterialBitmask
; /**< bitmask formed from Face and Mode */
618 GLboolean _ClampVertexColor
;
619 GLenum16 ClampVertexColor
; /**< GL_TRUE, GL_FALSE, GL_FIXED_ONLY */
622 * Derived state for optimizations:
625 GLbitfield _EnabledLights
; /**< bitmask containing enabled lights */
627 GLboolean _NeedEyeCoords
;
628 GLboolean _NeedVertices
; /**< Use fast shader? */
630 GLfloat _BaseColor
[2][3];
636 * Line attribute group (GL_LINE_BIT).
638 struct gl_line_attrib
640 GLboolean SmoothFlag
; /**< GL_LINE_SMOOTH enabled? */
641 GLboolean StippleFlag
; /**< GL_LINE_STIPPLE enabled? */
642 GLushort StipplePattern
; /**< Stipple pattern */
643 GLint StippleFactor
; /**< Stipple repeat factor */
644 GLfloat Width
; /**< Line width */
649 * Display list attribute group (GL_LIST_BIT).
651 struct gl_list_attrib
658 * Multisample attribute group (GL_MULTISAMPLE_BIT).
660 struct gl_multisample_attrib
663 GLboolean SampleAlphaToCoverage
;
664 GLboolean SampleAlphaToOne
;
665 GLboolean SampleCoverage
;
666 GLboolean SampleCoverageInvert
;
667 GLboolean SampleShading
;
669 /* ARB_texture_multisample / GL3.2 additions */
670 GLboolean SampleMask
;
672 GLfloat SampleCoverageValue
; /**< In range [0, 1] */
673 GLfloat MinSampleShadingValue
; /**< In range [0, 1] */
675 /** The GL spec defines this as an array but >32x MSAA is madness */
676 GLbitfield SampleMaskValue
;
681 * A pixelmap (see glPixelMap)
686 GLfloat Map
[MAX_PIXEL_MAP_TABLE
];
691 * Collection of all pixelmaps
695 struct gl_pixelmap RtoR
; /**< i.e. GL_PIXEL_MAP_R_TO_R */
696 struct gl_pixelmap GtoG
;
697 struct gl_pixelmap BtoB
;
698 struct gl_pixelmap AtoA
;
699 struct gl_pixelmap ItoR
;
700 struct gl_pixelmap ItoG
;
701 struct gl_pixelmap ItoB
;
702 struct gl_pixelmap ItoA
;
703 struct gl_pixelmap ItoI
;
704 struct gl_pixelmap StoS
;
709 * Pixel attribute group (GL_PIXEL_MODE_BIT).
711 struct gl_pixel_attrib
713 GLenum16 ReadBuffer
; /**< source buffer for glRead/CopyPixels() */
715 /*--- Begin Pixel Transfer State ---*/
716 /* Fields are in the order in which they're applied... */
718 /** Scale & Bias (index shift, offset) */
720 GLfloat RedBias
, RedScale
;
721 GLfloat GreenBias
, GreenScale
;
722 GLfloat BlueBias
, BlueScale
;
723 GLfloat AlphaBias
, AlphaScale
;
724 GLfloat DepthBias
, DepthScale
;
725 GLint IndexShift
, IndexOffset
;
729 /* Note: actual pixel maps are not part of this attrib group */
730 GLboolean MapColorFlag
;
731 GLboolean MapStencilFlag
;
733 /*--- End Pixel Transfer State ---*/
736 GLfloat ZoomX
, ZoomY
;
741 * Point attribute group (GL_POINT_BIT).
743 struct gl_point_attrib
745 GLfloat Size
; /**< User-specified point size */
746 GLfloat Params
[3]; /**< GL_EXT_point_parameters */
747 GLfloat MinSize
, MaxSize
; /**< GL_EXT_point_parameters */
748 GLfloat Threshold
; /**< GL_EXT_point_parameters */
749 GLboolean SmoothFlag
; /**< True if GL_POINT_SMOOTH is enabled */
750 GLboolean _Attenuated
; /**< True if Params != [1, 0, 0] */
751 GLboolean PointSprite
; /**< GL_NV/ARB_point_sprite */
752 GLbitfield CoordReplace
; /**< GL_ARB_point_sprite*/
753 GLenum16 SpriteRMode
; /**< GL_NV_point_sprite (only!) */
754 GLenum16 SpriteOrigin
; /**< GL_ARB_point_sprite */
759 * Polygon attribute group (GL_POLYGON_BIT).
761 struct gl_polygon_attrib
763 GLenum16 FrontFace
; /**< Either GL_CW or GL_CCW */
764 GLenum FrontMode
; /**< Either GL_POINT, GL_LINE or GL_FILL */
765 GLenum BackMode
; /**< Either GL_POINT, GL_LINE or GL_FILL */
766 GLboolean CullFlag
; /**< Culling on/off flag */
767 GLboolean SmoothFlag
; /**< True if GL_POLYGON_SMOOTH is enabled */
768 GLboolean StippleFlag
; /**< True if GL_POLYGON_STIPPLE is enabled */
769 GLenum16 CullFaceMode
; /**< Culling mode GL_FRONT or GL_BACK */
770 GLfloat OffsetFactor
; /**< Polygon offset factor, from user */
771 GLfloat OffsetUnits
; /**< Polygon offset units, from user */
772 GLfloat OffsetClamp
; /**< Polygon offset clamp, from user */
773 GLboolean OffsetPoint
; /**< Offset in GL_POINT mode */
774 GLboolean OffsetLine
; /**< Offset in GL_LINE mode */
775 GLboolean OffsetFill
; /**< Offset in GL_FILL mode */
780 * Scissor attributes (GL_SCISSOR_BIT).
782 struct gl_scissor_rect
784 GLint X
, Y
; /**< Lower left corner of box */
785 GLsizei Width
, Height
; /**< Size of box */
789 struct gl_scissor_attrib
791 GLbitfield EnableFlags
; /**< Scissor test enabled? */
792 struct gl_scissor_rect ScissorArray
[MAX_VIEWPORTS
];
793 GLint NumWindowRects
; /**< Count of enabled window rectangles */
794 GLenum16 WindowRectMode
; /**< Whether to include or exclude the rects */
795 struct gl_scissor_rect WindowRects
[MAX_WINDOW_RECTANGLES
];
800 * Stencil attribute group (GL_STENCIL_BUFFER_BIT).
802 * Three sets of stencil data are tracked so that OpenGL 2.0,
803 * GL_EXT_stencil_two_side, and GL_ATI_separate_stencil can all be supported
804 * simultaneously. In each of the stencil state arrays, element 0 corresponds
805 * to GL_FRONT. Element 1 corresponds to the OpenGL 2.0 /
806 * GL_ATI_separate_stencil GL_BACK state. Element 2 corresponds to the
807 * GL_EXT_stencil_two_side GL_BACK state.
809 * The derived value \c _BackFace is either 1 or 2 depending on whether or
810 * not GL_STENCIL_TEST_TWO_SIDE_EXT is enabled.
812 * The derived value \c _TestTwoSide is set when the front-face and back-face
813 * stencil state are different.
815 struct gl_stencil_attrib
817 GLboolean Enabled
; /**< Enabled flag */
818 GLboolean TestTwoSide
; /**< GL_EXT_stencil_two_side */
819 GLubyte ActiveFace
; /**< GL_EXT_stencil_two_side (0 or 2) */
820 GLubyte _BackFace
; /**< Current back stencil state (1 or 2) */
821 GLenum16 Function
[3]; /**< Stencil function */
822 GLenum16 FailFunc
[3]; /**< Fail function */
823 GLenum16 ZPassFunc
[3]; /**< Depth buffer pass function */
824 GLenum16 ZFailFunc
[3]; /**< Depth buffer fail function */
825 GLint Ref
[3]; /**< Reference value */
826 GLuint ValueMask
[3]; /**< Value mask */
827 GLuint WriteMask
[3]; /**< Write mask */
828 GLuint Clear
; /**< Clear value */
833 * Bit flags for each type of texture object
836 #define TEXTURE_2D_MULTISAMPLE_BIT (1 << TEXTURE_2D_MULTISAMPLE_INDEX)
837 #define TEXTURE_2D_MULTISAMPLE_ARRAY_BIT (1 << TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX)
838 #define TEXTURE_CUBE_ARRAY_BIT (1 << TEXTURE_CUBE_ARRAY_INDEX)
839 #define TEXTURE_BUFFER_BIT (1 << TEXTURE_BUFFER_INDEX)
840 #define TEXTURE_2D_ARRAY_BIT (1 << TEXTURE_2D_ARRAY_INDEX)
841 #define TEXTURE_1D_ARRAY_BIT (1 << TEXTURE_1D_ARRAY_INDEX)
842 #define TEXTURE_EXTERNAL_BIT (1 << TEXTURE_EXTERNAL_INDEX)
843 #define TEXTURE_CUBE_BIT (1 << TEXTURE_CUBE_INDEX)
844 #define TEXTURE_3D_BIT (1 << TEXTURE_3D_INDEX)
845 #define TEXTURE_RECT_BIT (1 << TEXTURE_RECT_INDEX)
846 #define TEXTURE_2D_BIT (1 << TEXTURE_2D_INDEX)
847 #define TEXTURE_1D_BIT (1 << TEXTURE_1D_INDEX)
852 * Texture image state. Drivers will typically create a subclass of this
853 * with extra fields for memory buffers, etc.
855 struct gl_texture_image
857 GLint InternalFormat
; /**< Internal format as given by the user */
858 GLenum16 _BaseFormat
; /**< Either GL_RGB, GL_RGBA, GL_ALPHA,
859 * GL_LUMINANCE, GL_LUMINANCE_ALPHA,
860 * GL_INTENSITY, GL_DEPTH_COMPONENT or
861 * GL_DEPTH_STENCIL_EXT only. Used for
862 * choosing TexEnv arithmetic.
864 mesa_format TexFormat
; /**< The actual texture memory format */
866 GLuint Border
; /**< 0 or 1 */
867 GLuint Width
; /**< = 2^WidthLog2 + 2*Border */
868 GLuint Height
; /**< = 2^HeightLog2 + 2*Border */
869 GLuint Depth
; /**< = 2^DepthLog2 + 2*Border */
870 GLuint Width2
; /**< = Width - 2*Border */
871 GLuint Height2
; /**< = Height - 2*Border */
872 GLuint Depth2
; /**< = Depth - 2*Border */
873 GLuint WidthLog2
; /**< = log2(Width2) */
874 GLuint HeightLog2
; /**< = log2(Height2) */
875 GLuint DepthLog2
; /**< = log2(Depth2) */
876 GLuint MaxNumLevels
; /**< = maximum possible number of mipmap
877 levels, computed from the dimensions */
879 struct gl_texture_object
*TexObject
; /**< Pointer back to parent object */
880 GLuint Level
; /**< Which mipmap level am I? */
881 /** Cube map face: index into gl_texture_object::Image[] array */
884 /** GL_ARB_texture_multisample */
885 GLuint NumSamples
; /**< Sample count, or 0 for non-multisample */
886 GLboolean FixedSampleLocations
; /**< Same sample locations for all pixels? */
891 * Indexes for cube map faces.
906 * Sampler object state. These objects are new with GL_ARB_sampler_objects
907 * and OpenGL 3.3. Legacy texture objects also contain a sampler object.
909 struct gl_sampler_object
913 GLchar
*Label
; /**< GL_KHR_debug */
916 GLenum16 WrapS
; /**< S-axis texture image wrap mode */
917 GLenum16 WrapT
; /**< T-axis texture image wrap mode */
918 GLenum16 WrapR
; /**< R-axis texture image wrap mode */
919 GLenum16 MinFilter
; /**< minification filter */
920 GLenum16 MagFilter
; /**< magnification filter */
921 GLenum16 sRGBDecode
; /**< GL_DECODE_EXT or GL_SKIP_DECODE_EXT */
922 union gl_color_union BorderColor
; /**< Interpreted according to texture format */
923 GLfloat MinLod
; /**< min lambda, OpenGL 1.2 */
924 GLfloat MaxLod
; /**< max lambda, OpenGL 1.2 */
925 GLfloat LodBias
; /**< OpenGL 1.4 */
926 GLfloat MaxAnisotropy
; /**< GL_EXT_texture_filter_anisotropic */
927 GLenum16 CompareMode
; /**< GL_ARB_shadow */
928 GLenum16 CompareFunc
; /**< GL_ARB_shadow */
929 GLboolean CubeMapSeamless
; /**< GL_AMD_seamless_cubemap_per_texture */
931 /** GL_ARB_bindless_texture */
932 bool HandleAllocated
;
933 struct util_dynarray Handles
;
938 * Texture object state. Contains the array of mipmap images, border color,
939 * wrap modes, filter modes, and shadow/texcompare state.
941 struct gl_texture_object
943 simple_mtx_t Mutex
; /**< for thread safety */
944 GLint RefCount
; /**< reference count */
945 GLuint Name
; /**< the user-visible texture object ID */
946 GLenum16 Target
; /**< GL_TEXTURE_1D, GL_TEXTURE_2D, etc. */
947 GLenum16 DepthMode
; /**< GL_ARB_depth_texture */
948 GLchar
*Label
; /**< GL_KHR_debug */
950 struct gl_sampler_object Sampler
;
952 gl_texture_index TargetIndex
; /**< The gl_texture_unit::CurrentTex index.
953 Only valid when Target is valid. */
954 GLfloat Priority
; /**< in [0,1] */
955 GLint MaxLevel
; /**< max mipmap level (max=1000), OpenGL 1.2 */
956 GLint BaseLevel
; /**< min mipmap level, OpenGL 1.2 */
957 GLbyte _MaxLevel
; /**< actual max mipmap level (q in the spec) */
958 GLfloat _MaxLambda
; /**< = _MaxLevel - BaseLevel (q - p in spec) */
959 GLint CropRect
[4]; /**< GL_OES_draw_texture */
960 GLenum Swizzle
[4]; /**< GL_EXT_texture_swizzle */
961 GLushort _Swizzle
; /**< same as Swizzle, but SWIZZLE_* format */
962 GLbyte ImmutableLevels
; /**< ES 3.0 / ARB_texture_view */
963 GLboolean GenerateMipmap
; /**< GL_SGIS_generate_mipmap */
964 GLboolean _BaseComplete
; /**< Is the base texture level valid? */
965 GLboolean _MipmapComplete
; /**< Is the whole mipmap valid? */
966 GLboolean _IsIntegerFormat
; /**< Does the texture store integer values? */
967 GLboolean _RenderToTexture
; /**< Any rendering to this texture? */
968 GLboolean Purgeable
; /**< Is the buffer purgeable under memory
970 GLboolean Immutable
; /**< GL_ARB_texture_storage */
971 GLboolean _IsFloat
; /**< GL_OES_float_texture */
972 GLboolean _IsHalfFloat
; /**< GL_OES_half_float_texture */
973 bool StencilSampling
; /**< Should we sample stencil instead of depth? */
974 bool HandleAllocated
; /**< GL_ARB_bindless_texture */
976 /** GL_OES_EGL_image_external */
977 GLubyte RequiredTextureImageUnits
;
979 GLubyte MinLevel
; /**< GL_ARB_texture_view */
980 GLubyte NumLevels
; /**< GL_ARB_texture_view */
981 GLushort MinLayer
; /**< GL_ARB_texture_view */
982 GLushort NumLayers
; /**< GL_ARB_texture_view */
984 /** GL_EXT_memory_object */
985 GLenum16 TextureTiling
;
987 /** GL_ARB_shader_image_load_store */
988 GLenum16 ImageFormatCompatibilityType
;
990 /** GL_ARB_texture_buffer_object */
991 GLenum16 BufferObjectFormat
;
992 /** Equivalent Mesa format for BufferObjectFormat. */
993 mesa_format _BufferObjectFormat
;
994 struct gl_buffer_object
*BufferObject
;
996 /** GL_ARB_texture_buffer_range */
997 GLintptr BufferOffset
;
998 GLsizeiptr BufferSize
; /**< if this is -1, use BufferObject->Size instead */
1000 /** Actual texture images, indexed by [cube face] and [mipmap level] */
1001 struct gl_texture_image
*Image
[MAX_FACES
][MAX_TEXTURE_LEVELS
];
1003 /** GL_ARB_bindless_texture */
1004 struct util_dynarray SamplerHandles
;
1005 struct util_dynarray ImageHandles
;
1009 /** Up to four combiner sources are possible with GL_NV_texture_env_combine4 */
1010 #define MAX_COMBINER_TERMS 4
1014 * Texture combine environment state.
1016 struct gl_tex_env_combine_state
1018 GLenum16 ModeRGB
; /**< GL_REPLACE, GL_DECAL, GL_ADD, etc. */
1019 GLenum16 ModeA
; /**< GL_REPLACE, GL_DECAL, GL_ADD, etc. */
1020 /** Source terms: GL_PRIMARY_COLOR, GL_TEXTURE, etc */
1021 GLenum16 SourceRGB
[MAX_COMBINER_TERMS
];
1022 GLenum16 SourceA
[MAX_COMBINER_TERMS
];
1023 /** Source operands: GL_SRC_COLOR, GL_ONE_MINUS_SRC_COLOR, etc */
1024 GLenum16 OperandRGB
[MAX_COMBINER_TERMS
];
1025 GLenum16 OperandA
[MAX_COMBINER_TERMS
];
1026 GLubyte ScaleShiftRGB
; /**< 0, 1 or 2 */
1027 GLubyte ScaleShiftA
; /**< 0, 1 or 2 */
1028 GLubyte _NumArgsRGB
; /**< Number of inputs used for the RGB combiner */
1029 GLubyte _NumArgsA
; /**< Number of inputs used for the A combiner */
1033 /** Compressed TexEnv effective Combine mode */
1034 enum gl_tex_env_mode
1036 TEXENV_MODE_REPLACE
, /* r = a0 */
1037 TEXENV_MODE_MODULATE
, /* r = a0 * a1 */
1038 TEXENV_MODE_ADD
, /* r = a0 + a1 */
1039 TEXENV_MODE_ADD_SIGNED
, /* r = a0 + a1 - 0.5 */
1040 TEXENV_MODE_INTERPOLATE
, /* r = a0 * a2 + a1 * (1 - a2) */
1041 TEXENV_MODE_SUBTRACT
, /* r = a0 - a1 */
1042 TEXENV_MODE_DOT3_RGB
, /* r = a0 . a1 */
1043 TEXENV_MODE_DOT3_RGB_EXT
, /* r = a0 . a1 */
1044 TEXENV_MODE_DOT3_RGBA
, /* r = a0 . a1 */
1045 TEXENV_MODE_DOT3_RGBA_EXT
, /* r = a0 . a1 */
1046 TEXENV_MODE_MODULATE_ADD_ATI
, /* r = a0 * a2 + a1 */
1047 TEXENV_MODE_MODULATE_SIGNED_ADD_ATI
, /* r = a0 * a2 + a1 - 0.5 */
1048 TEXENV_MODE_MODULATE_SUBTRACT_ATI
, /* r = a0 * a2 - a1 */
1049 TEXENV_MODE_ADD_PRODUCTS_NV
, /* r = a0 * a1 + a2 * a3 */
1050 TEXENV_MODE_ADD_PRODUCTS_SIGNED_NV
, /* r = a0 * a1 + a2 * a3 - 0.5 */
1054 /** Compressed TexEnv Combine source */
1055 enum gl_tex_env_source
1057 TEXENV_SRC_TEXTURE0
,
1058 TEXENV_SRC_TEXTURE1
,
1059 TEXENV_SRC_TEXTURE2
,
1060 TEXENV_SRC_TEXTURE3
,
1061 TEXENV_SRC_TEXTURE4
,
1062 TEXENV_SRC_TEXTURE5
,
1063 TEXENV_SRC_TEXTURE6
,
1064 TEXENV_SRC_TEXTURE7
,
1066 TEXENV_SRC_PREVIOUS
,
1067 TEXENV_SRC_PRIMARY_COLOR
,
1068 TEXENV_SRC_CONSTANT
,
1074 /** Compressed TexEnv Combine operand */
1075 enum gl_tex_env_operand
1078 TEXENV_OPR_ONE_MINUS_COLOR
,
1080 TEXENV_OPR_ONE_MINUS_ALPHA
,
1084 /** Compressed TexEnv Combine argument */
1085 struct gl_tex_env_argument
1088 __extension__
uint8_t Source
:4; /**< TEXENV_SRC_x */
1089 __extension__
uint8_t Operand
:2; /**< TEXENV_OPR_x */
1091 uint8_t Source
; /**< SRC_x */
1092 uint8_t Operand
; /**< OPR_x */
1098 * Compressed TexEnv Combine state.
1100 struct gl_tex_env_combine_packed
1102 uint32_t ModeRGB
:4; /**< Effective mode for RGB as 4 bits */
1103 uint32_t ModeA
:4; /**< Effective mode for RGB as 4 bits */
1104 uint32_t ScaleShiftRGB
:2; /**< 0, 1 or 2 */
1105 uint32_t ScaleShiftA
:2; /**< 0, 1 or 2 */
1106 uint32_t NumArgsRGB
:3; /**< Number of inputs used for the RGB combiner */
1107 uint32_t NumArgsA
:3; /**< Number of inputs used for the A combiner */
1108 /** Source arguments in a packed manner */
1109 struct gl_tex_env_argument ArgsRGB
[MAX_COMBINER_TERMS
];
1110 struct gl_tex_env_argument ArgsA
[MAX_COMBINER_TERMS
];
1115 * TexGenEnabled flags.
1122 #define STR_BITS (S_BIT | T_BIT | R_BIT)
1127 * Bit flag versions of the corresponding GL_ constants.
1130 #define TEXGEN_SPHERE_MAP 0x1
1131 #define TEXGEN_OBJ_LINEAR 0x2
1132 #define TEXGEN_EYE_LINEAR 0x4
1133 #define TEXGEN_REFLECTION_MAP_NV 0x8
1134 #define TEXGEN_NORMAL_MAP_NV 0x10
1136 #define TEXGEN_NEED_NORMALS (TEXGEN_SPHERE_MAP | \
1137 TEXGEN_REFLECTION_MAP_NV | \
1138 TEXGEN_NORMAL_MAP_NV)
1139 #define TEXGEN_NEED_EYE_COORD (TEXGEN_SPHERE_MAP | \
1140 TEXGEN_REFLECTION_MAP_NV | \
1141 TEXGEN_NORMAL_MAP_NV | \
1147 /** Tex-gen enabled for texture unit? */
1148 #define ENABLE_TEXGEN(unit) (1 << (unit))
1150 /** Non-identity texture matrix for texture unit? */
1151 #define ENABLE_TEXMAT(unit) (1 << (unit))
1155 * Texture coord generation state.
1159 GLenum16 Mode
; /**< GL_EYE_LINEAR, GL_SPHERE_MAP, etc */
1160 GLbitfield8 _ModeBit
; /**< TEXGEN_x bit corresponding to Mode */
1161 GLfloat ObjectPlane
[4];
1162 GLfloat EyePlane
[4];
1167 * Sampler-related subset of a texture unit, like current texture objects.
1169 struct gl_texture_unit
1171 GLfloat LodBias
; /**< for biasing mipmap levels */
1173 /** Texture targets that have a non-default texture bound */
1174 GLbitfield _BoundTextures
;
1176 /** Current sampler object (GL_ARB_sampler_objects) */
1177 struct gl_sampler_object
*Sampler
;
1179 /** Current texture object pointers */
1180 struct gl_texture_object
*CurrentTex
[NUM_TEXTURE_TARGETS
];
1182 /** Points to highest priority, complete and enabled texture object */
1183 struct gl_texture_object
*_Current
;
1188 * Fixed-function-related subset of a texture unit, like enable flags,
1189 * texture environment/function/combiners, and texgen state.
1191 struct gl_fixedfunc_texture_unit
1193 GLbitfield16 Enabled
; /**< bitmask of TEXTURE_*_BIT flags */
1195 GLenum16 EnvMode
; /**< GL_MODULATE, GL_DECAL, GL_BLEND, etc. */
1196 GLclampf EnvColor
[4];
1197 GLfloat EnvColorUnclamped
[4];
1199 struct gl_texgen GenS
;
1200 struct gl_texgen GenT
;
1201 struct gl_texgen GenR
;
1202 struct gl_texgen GenQ
;
1203 GLbitfield8 TexGenEnabled
; /**< Bitwise-OR of [STRQ]_BIT values */
1204 GLbitfield8 _GenFlags
; /**< Bitwise-OR of Gen[STRQ]._ModeBit */
1207 * \name GL_EXT_texture_env_combine
1209 struct gl_tex_env_combine_state Combine
;
1212 * Derived state based on \c EnvMode and the \c BaseFormat of the
1213 * currently enabled texture.
1215 struct gl_tex_env_combine_state _EnvMode
;
1217 /** Current compressed TexEnv & Combine state */
1218 struct gl_tex_env_combine_packed _CurrentCombinePacked
;
1221 * Currently enabled combiner state. This will point to either
1222 * \c Combine or \c _EnvMode.
1224 struct gl_tex_env_combine_state
*_CurrentCombine
;
1229 * Texture attribute group (GL_TEXTURE_BIT).
1231 struct gl_texture_attrib
1233 struct gl_texture_object
*ProxyTex
[NUM_TEXTURE_TARGETS
];
1235 /** GL_ARB_texture_buffer_object */
1236 struct gl_buffer_object
*BufferObject
;
1238 GLuint CurrentUnit
; /**< GL_ACTIVE_TEXTURE */
1240 /** Texture coord units/sets used for fragment texturing */
1241 GLbitfield8 _EnabledCoordUnits
;
1243 /** Texture coord units that have texgen enabled */
1244 GLbitfield8 _TexGenEnabled
;
1246 /** Texture coord units that have non-identity matrices */
1247 GLbitfield8 _TexMatEnabled
;
1249 /** Bitwise-OR of all Texture.Unit[i]._GenFlags */
1250 GLbitfield8 _GenFlags
;
1252 /** Largest index of a texture unit with _Current != NULL. */
1253 GLshort _MaxEnabledTexImageUnit
;
1255 /** Largest index + 1 of texture units that have had any CurrentTex set. */
1256 GLubyte NumCurrentTexUsed
;
1258 /** GL_ARB_seamless_cubemap */
1259 GLboolean CubeMapSeamless
;
1261 struct gl_texture_unit Unit
[MAX_COMBINED_TEXTURE_IMAGE_UNITS
];
1262 struct gl_fixedfunc_texture_unit FixedFuncUnit
[MAX_TEXTURE_COORD_UNITS
];
1267 * Data structure representing a single clip plane (e.g. one of the elements
1268 * of the ctx->Transform.EyeUserPlane or ctx->Transform._ClipUserPlane array).
1270 typedef GLfloat gl_clip_plane
[4];
1274 * Transformation attribute group (GL_TRANSFORM_BIT).
1276 struct gl_transform_attrib
1278 GLenum16 MatrixMode
; /**< Matrix mode */
1279 gl_clip_plane EyeUserPlane
[MAX_CLIP_PLANES
]; /**< User clip planes */
1280 gl_clip_plane _ClipUserPlane
[MAX_CLIP_PLANES
]; /**< derived */
1281 GLbitfield ClipPlanesEnabled
; /**< on/off bitmask */
1282 GLboolean Normalize
; /**< Normalize all normals? */
1283 GLboolean RescaleNormals
; /**< GL_EXT_rescale_normal */
1284 GLboolean RasterPositionUnclipped
; /**< GL_IBM_rasterpos_clip */
1285 GLboolean DepthClampNear
; /**< GL_AMD_depth_clamp_separate */
1286 GLboolean DepthClampFar
; /**< GL_AMD_depth_clamp_separate */
1287 /** GL_ARB_clip_control */
1288 GLenum16 ClipOrigin
; /**< GL_LOWER_LEFT or GL_UPPER_LEFT */
1289 GLenum16 ClipDepthMode
;/**< GL_NEGATIVE_ONE_TO_ONE or GL_ZERO_TO_ONE */
1294 * Viewport attribute group (GL_VIEWPORT_BIT).
1296 struct gl_viewport_attrib
1298 GLfloat X
, Y
; /**< position */
1299 GLfloat Width
, Height
; /**< size */
1300 GLfloat Near
, Far
; /**< Depth buffer range */
1305 * Fields describing a mapped buffer range.
1307 struct gl_buffer_mapping
1309 GLbitfield AccessFlags
; /**< Mask of GL_MAP_x_BIT flags */
1310 GLvoid
*Pointer
; /**< User-space address of mapping */
1311 GLintptr Offset
; /**< Mapped offset */
1312 GLsizeiptr Length
; /**< Mapped length */
1317 * Usages we've seen for a buffer object.
1321 USAGE_UNIFORM_BUFFER
= 0x1,
1322 USAGE_TEXTURE_BUFFER
= 0x2,
1323 USAGE_ATOMIC_COUNTER_BUFFER
= 0x4,
1324 USAGE_SHADER_STORAGE_BUFFER
= 0x8,
1325 USAGE_TRANSFORM_FEEDBACK_BUFFER
= 0x10,
1326 USAGE_PIXEL_PACK_BUFFER
= 0x20,
1327 USAGE_DISABLE_MINMAX_CACHE
= 0x40,
1332 * GL_ARB_vertex/pixel_buffer_object buffer object
1334 struct gl_buffer_object
1338 GLchar
*Label
; /**< GL_KHR_debug */
1339 GLenum16 Usage
; /**< GL_STREAM_DRAW_ARB, GL_STREAM_READ_ARB, etc. */
1340 GLbitfield StorageFlags
; /**< GL_MAP_PERSISTENT_BIT, etc. */
1341 GLsizeiptrARB Size
; /**< Size of buffer storage in bytes */
1342 GLubyte
*Data
; /**< Location of storage either in RAM or VRAM. */
1343 GLboolean DeletePending
; /**< true if buffer object is removed from the hash */
1344 GLboolean Written
; /**< Ever written to? (for debugging) */
1345 GLboolean Purgeable
; /**< Is the buffer purgeable under memory pressure? */
1346 GLboolean Immutable
; /**< GL_ARB_buffer_storage */
1347 gl_buffer_usage UsageHistory
; /**< How has this buffer been used so far? */
1349 /** Counters used for buffer usage warnings */
1350 GLuint NumSubDataCalls
;
1351 GLuint NumMapBufferWriteCalls
;
1353 struct gl_buffer_mapping Mappings
[MAP_COUNT
];
1355 /** Memoization of min/max index computations for static index buffers */
1356 simple_mtx_t MinMaxCacheMutex
;
1357 struct hash_table
*MinMaxCache
;
1358 unsigned MinMaxCacheHitIndices
;
1359 unsigned MinMaxCacheMissIndices
;
1360 bool MinMaxCacheDirty
;
1362 bool HandleAllocated
; /**< GL_ARB_bindless_texture */
1367 * Client pixel packing/unpacking attributes
1369 struct gl_pixelstore_attrib
1377 GLboolean SwapBytes
;
1379 GLboolean Invert
; /**< GL_MESA_pack_invert */
1380 GLint CompressedBlockWidth
; /**< GL_ARB_compressed_texture_pixel_storage */
1381 GLint CompressedBlockHeight
;
1382 GLint CompressedBlockDepth
;
1383 GLint CompressedBlockSize
;
1384 struct gl_buffer_object
*BufferObj
; /**< GL_ARB_pixel_buffer_object */
1389 * Enum for defining the mapping for the position/generic0 attribute.
1391 * Do not change the order of the values as these are used as
1396 ATTRIBUTE_MAP_MODE_IDENTITY
, /**< 1:1 mapping */
1397 ATTRIBUTE_MAP_MODE_POSITION
, /**< get position and generic0 from position */
1398 ATTRIBUTE_MAP_MODE_GENERIC0
, /**< get position and generic0 from generic0 */
1399 ATTRIBUTE_MAP_MODE_MAX
/**< for sizing arrays */
1400 } gl_attribute_map_mode
;
1404 * Attributes to describe a vertex array.
1406 * Contains the size, type, format and normalization flag,
1407 * along with the index of a vertex buffer binding point.
1409 * Note that the Stride field corresponds to VERTEX_ATTRIB_ARRAY_STRIDE
1410 * and is only present for backwards compatibility reasons.
1411 * Rendering always uses VERTEX_BINDING_STRIDE.
1412 * The gl*Pointer() functions will set VERTEX_ATTRIB_ARRAY_STRIDE
1413 * and VERTEX_BINDING_STRIDE to the same value, while
1414 * glBindVertexBuffer() will only set VERTEX_BINDING_STRIDE.
1416 struct gl_array_attributes
1418 /** Points to client array data. Not used when a VBO is bound */
1420 /** Offset of the first element relative to the binding offset */
1421 GLuint RelativeOffset
;
1422 GLshort Stride
; /**< Stride as specified with gl*Pointer() */
1423 GLenum16 Type
; /**< Datatype: GL_FLOAT, GL_INT, etc */
1424 GLenum16 Format
; /**< Default: GL_RGBA, but may be GL_BGRA */
1425 GLubyte Size
; /**< Components per element (1,2,3,4) */
1426 unsigned Normalized
:1; /**< Fixed-point values are normalized when converted to floats */
1427 unsigned Integer
:1; /**< Fixed-point values are not converted to floats */
1428 unsigned Doubles
:1; /**< double precision values are not converted to floats */
1429 unsigned _ElementSize
:8; /**< Size of each element in bytes */
1430 /** Index into gl_vertex_array_object::BufferBinding[] array */
1431 unsigned BufferBindingIndex
:6;
1434 * Derived effective buffer binding index
1436 * Index into the gl_vertex_buffer_binding array of the vao.
1437 * Similar to BufferBindingIndex, but with the mapping of the
1438 * position/generic0 attributes applied and with identical
1439 * gl_vertex_buffer_binding entries collapsed to a single
1440 * entry within the vao.
1442 * The value is valid past calling _mesa_update_vao_derived_arrays.
1443 * Note that _mesa_update_vao_derived_arrays is called when binding
1444 * the VAO to Array._DrawVAO.
1446 unsigned _EffBufferBindingIndex
:6;
1448 * Derived effective relative offset.
1450 * Relative offset to the effective buffers offset in
1451 * gl_vertex_buffer_binding::_EffOffset.
1453 * The value is valid past calling _mesa_update_vao_derived_arrays.
1454 * Note that _mesa_update_vao_derived_arrays is called when binding
1455 * the VAO to Array._DrawVAO.
1457 GLushort _EffRelativeOffset
;
1462 * This describes the buffer object used for a vertex array (or
1463 * multiple vertex arrays). If BufferObj points to the default/null
1464 * buffer object, then the vertex array lives in user memory and not a VBO.
1466 struct gl_vertex_buffer_binding
1468 GLintptr Offset
; /**< User-specified offset */
1469 GLsizei Stride
; /**< User-specified stride */
1470 GLuint InstanceDivisor
; /**< GL_ARB_instanced_arrays */
1471 struct gl_buffer_object
*BufferObj
; /**< GL_ARB_vertex_buffer_object */
1472 GLbitfield _BoundArrays
; /**< Arrays bound to this binding point */
1475 * Derived effective bound arrays.
1477 * The effective binding handles enabled arrays past the
1478 * position/generic0 attribute mapping and reduces the refered
1479 * gl_vertex_buffer_binding entries to a unique subset.
1481 * The value is valid past calling _mesa_update_vao_derived_arrays.
1482 * Note that _mesa_update_vao_derived_arrays is called when binding
1483 * the VAO to Array._DrawVAO.
1485 GLbitfield _EffBoundArrays
;
1489 * The absolute offset to that we can collapse some attributes
1490 * to this unique effective binding.
1491 * For user space array bindings this contains the smallest pointer value
1492 * in the bound and interleaved arrays.
1493 * For VBO bindings this contains an offset that lets the attributes
1494 * _EffRelativeOffset stay positive and in bounds with
1495 * Const.MaxVertexAttribRelativeOffset
1497 * The value is valid past calling _mesa_update_vao_derived_arrays.
1498 * Note that _mesa_update_vao_derived_arrays is called when binding
1499 * the VAO to Array._DrawVAO.
1501 GLintptr _EffOffset
;
1506 * A representation of "Vertex Array Objects" (VAOs) from OpenGL 3.1+ /
1507 * the GL_ARB_vertex_array_object extension.
1509 struct gl_vertex_array_object
1511 /** Name of the VAO as received from glGenVertexArray. */
1516 GLchar
*Label
; /**< GL_KHR_debug */
1519 * Has this array object been bound?
1521 GLboolean EverBound
;
1524 * Marked to true if the object is shared between contexts and immutable.
1525 * Then reference counting is done using atomics and thread safe.
1526 * Is used for dlist VAOs.
1528 bool SharedAndImmutable
;
1530 /** Vertex attribute arrays */
1531 struct gl_array_attributes VertexAttrib
[VERT_ATTRIB_MAX
];
1533 /** Vertex buffer bindings */
1534 struct gl_vertex_buffer_binding BufferBinding
[VERT_ATTRIB_MAX
];
1536 /** Mask indicating which vertex arrays have vertex buffer associated. */
1537 GLbitfield VertexAttribBufferMask
;
1539 /** Mask of VERT_BIT_* values indicating which arrays are enabled */
1543 * Mask of VERT_BIT_* enabled arrays past position/generic0 mapping
1545 * The value is valid past calling _mesa_update_vao_derived_arrays.
1546 * Note that _mesa_update_vao_derived_arrays is called when binding
1547 * the VAO to Array._DrawVAO.
1549 GLbitfield _EffEnabledVBO
;
1551 /** Denotes the way the position/generic0 attribute is mapped */
1552 gl_attribute_map_mode _AttributeMapMode
;
1554 /** Mask of VERT_BIT_* values indicating changed/dirty arrays */
1555 GLbitfield NewArrays
;
1557 /** The index buffer (also known as the element array buffer in OpenGL). */
1558 struct gl_buffer_object
*IndexBufferObj
;
1563 * Vertex array state
1565 struct gl_array_attrib
1567 /** Currently bound array object. */
1568 struct gl_vertex_array_object
*VAO
;
1570 /** The default vertex array object */
1571 struct gl_vertex_array_object
*DefaultVAO
;
1573 /** The last VAO accessed by a DSA function */
1574 struct gl_vertex_array_object
*LastLookedUpVAO
;
1576 /** Array objects (GL_ARB_vertex_array_object) */
1577 struct _mesa_HashTable
*Objects
;
1579 GLint ActiveTexture
; /**< Client Active Texture */
1580 GLuint LockFirst
; /**< GL_EXT_compiled_vertex_array */
1581 GLuint LockCount
; /**< GL_EXT_compiled_vertex_array */
1584 * \name Primitive restart controls
1586 * Primitive restart is enabled if either \c PrimitiveRestart or
1587 * \c PrimitiveRestartFixedIndex is set.
1590 GLboolean PrimitiveRestart
;
1591 GLboolean PrimitiveRestartFixedIndex
;
1592 GLboolean _PrimitiveRestart
;
1593 GLuint RestartIndex
;
1596 /* GL_ARB_vertex_buffer_object */
1597 struct gl_buffer_object
*ArrayBufferObj
;
1600 * Vertex array object that is used with the currently active draw command.
1601 * The _DrawVAO is either set to the currently bound VAO for array type
1602 * draws or to internal VAO's set up by the vbo module to execute immediate
1603 * mode or display list draws.
1605 struct gl_vertex_array_object
*_DrawVAO
;
1607 * The VERT_BIT_* bits effectively enabled from the current _DrawVAO.
1608 * This is always a subset of _mesa_get_vao_vp_inputs(_DrawVAO)
1609 * but may omit those arrays that shall not be referenced by the current
1610 * gl_vertex_program_state::_VPMode. For example the generic attributes are
1611 * maked out form the _DrawVAO's enabled arrays when a fixed function
1612 * array draw is executed.
1614 GLbitfield _DrawVAOEnabledAttribs
;
1616 * Initially or if the VAO referenced by _DrawVAO is deleted the _DrawVAO
1617 * pointer is set to the _EmptyVAO which is just an empty VAO all the time.
1619 struct gl_vertex_array_object
*_EmptyVAO
;
1621 /** Legal array datatypes and the API for which they have been computed */
1622 GLbitfield LegalTypesMask
;
1623 gl_api LegalTypesMaskAPI
;
1628 * Feedback buffer state
1633 GLbitfield _Mask
; /**< FB_* bits */
1641 * Selection buffer state
1645 GLuint
*Buffer
; /**< selection buffer */
1646 GLuint BufferSize
; /**< size of the selection buffer */
1647 GLuint BufferCount
; /**< number of values in the selection buffer */
1648 GLuint Hits
; /**< number of records in the selection buffer */
1649 GLuint NameStackDepth
; /**< name stack depth */
1650 GLuint NameStack
[MAX_NAME_STACK_DEPTH
]; /**< name stack */
1651 GLboolean HitFlag
; /**< hit flag */
1652 GLfloat HitMinZ
; /**< minimum hit depth */
1653 GLfloat HitMaxZ
; /**< maximum hit depth */
1658 * 1-D Evaluator control points
1662 GLuint Order
; /**< Number of control points */
1663 GLfloat u1
, u2
, du
; /**< u1, u2, 1.0/(u2-u1) */
1664 GLfloat
*Points
; /**< Points to contiguous control points */
1669 * 2-D Evaluator control points
1673 GLuint Uorder
; /**< Number of control points in U dimension */
1674 GLuint Vorder
; /**< Number of control points in V dimension */
1677 GLfloat
*Points
; /**< Points to contiguous control points */
1682 * All evaluator control point state
1684 struct gl_evaluators
1690 struct gl_1d_map Map1Vertex3
;
1691 struct gl_1d_map Map1Vertex4
;
1692 struct gl_1d_map Map1Index
;
1693 struct gl_1d_map Map1Color4
;
1694 struct gl_1d_map Map1Normal
;
1695 struct gl_1d_map Map1Texture1
;
1696 struct gl_1d_map Map1Texture2
;
1697 struct gl_1d_map Map1Texture3
;
1698 struct gl_1d_map Map1Texture4
;
1705 struct gl_2d_map Map2Vertex3
;
1706 struct gl_2d_map Map2Vertex4
;
1707 struct gl_2d_map Map2Index
;
1708 struct gl_2d_map Map2Color4
;
1709 struct gl_2d_map Map2Normal
;
1710 struct gl_2d_map Map2Texture1
;
1711 struct gl_2d_map Map2Texture2
;
1712 struct gl_2d_map Map2Texture3
;
1713 struct gl_2d_map Map2Texture4
;
1718 struct gl_transform_feedback_varying_info
1729 * Per-output info vertex shaders for transform feedback.
1731 struct gl_transform_feedback_output
1733 uint32_t OutputRegister
;
1734 uint32_t OutputBuffer
;
1735 uint32_t NumComponents
;
1738 /** offset (in DWORDs) of this output within the interleaved structure */
1742 * Offset into the output register of the data to output. For example,
1743 * if NumComponents is 2 and ComponentOffset is 1, then the data to
1744 * offset is in the y and z components of the output register.
1746 uint32_t ComponentOffset
;
1750 struct gl_transform_feedback_buffer
1754 uint32_t NumVaryings
;
1757 * Total number of components stored in each buffer. This may be used by
1758 * hardware back-ends to determine the correct stride when interleaving
1759 * multiple transform feedback outputs in the same buffer.
1764 * Which transform feedback stream this buffer binding is associated with.
1770 /** Post-link transform feedback info. */
1771 struct gl_transform_feedback_info
1773 unsigned NumOutputs
;
1775 /* Bitmask of active buffer indices. */
1776 unsigned ActiveBuffers
;
1778 struct gl_transform_feedback_output
*Outputs
;
1780 /** Transform feedback varyings used for the linking of this shader program.
1782 * Use for glGetTransformFeedbackVarying().
1784 struct gl_transform_feedback_varying_info
*Varyings
;
1787 struct gl_transform_feedback_buffer Buffers
[MAX_FEEDBACK_BUFFERS
];
1792 * Transform feedback object state
1794 struct gl_transform_feedback_object
1796 GLuint Name
; /**< AKA the object ID */
1798 GLchar
*Label
; /**< GL_KHR_debug */
1799 GLboolean Active
; /**< Is transform feedback enabled? */
1800 GLboolean Paused
; /**< Is transform feedback paused? */
1801 GLboolean EndedAnytime
; /**< Has EndTransformFeedback been called
1803 GLboolean EverBound
; /**< Has this object been bound? */
1806 * GLES: if Active is true, remaining number of primitives which can be
1807 * rendered without overflow. This is necessary to track because GLES
1808 * requires us to generate INVALID_OPERATION if a call to glDrawArrays or
1809 * glDrawArraysInstanced would overflow transform feedback buffers.
1810 * Undefined if Active is false.
1812 * Not tracked for desktop GL since it's unnecessary.
1814 unsigned GlesRemainingPrims
;
1817 * The program active when BeginTransformFeedback() was called.
1818 * When active and unpaused, this equals ctx->Shader.CurrentProgram[stage],
1819 * where stage is the pipeline stage that is the source of data for
1820 * transform feedback.
1822 struct gl_program
*program
;
1824 /** The feedback buffers */
1825 GLuint BufferNames
[MAX_FEEDBACK_BUFFERS
];
1826 struct gl_buffer_object
*Buffers
[MAX_FEEDBACK_BUFFERS
];
1828 /** Start of feedback data in dest buffer */
1829 GLintptr Offset
[MAX_FEEDBACK_BUFFERS
];
1832 * Max data to put into dest buffer (in bytes). Computed based on
1833 * RequestedSize and the actual size of the buffer.
1835 GLsizeiptr Size
[MAX_FEEDBACK_BUFFERS
];
1838 * Size that was specified when the buffer was bound. If the buffer was
1839 * bound with glBindBufferBase() or glBindBufferOffsetEXT(), this value is
1842 GLsizeiptr RequestedSize
[MAX_FEEDBACK_BUFFERS
];
1847 * Context state for transform feedback.
1849 struct gl_transform_feedback_state
1851 GLenum16 Mode
; /**< GL_POINTS, GL_LINES or GL_TRIANGLES */
1853 /** The general binding point (GL_TRANSFORM_FEEDBACK_BUFFER) */
1854 struct gl_buffer_object
*CurrentBuffer
;
1856 /** The table of all transform feedback objects */
1857 struct _mesa_HashTable
*Objects
;
1859 /** The current xform-fb object (GL_TRANSFORM_FEEDBACK_BINDING) */
1860 struct gl_transform_feedback_object
*CurrentObject
;
1862 /** The default xform-fb object (Name==0) */
1863 struct gl_transform_feedback_object
*DefaultObject
;
1868 * A "performance monitor" as described in AMD_performance_monitor.
1870 struct gl_perf_monitor_object
1874 /** True if the monitor is currently active (Begin called but not End). */
1878 * True if the monitor has ended.
1880 * This is distinct from !Active because it may never have began.
1885 * A list of groups with currently active counters.
1887 * ActiveGroups[g] == n if there are n counters active from group 'g'.
1889 unsigned *ActiveGroups
;
1892 * An array of bitsets, subscripted by group ID, then indexed by counter ID.
1894 * Checking whether counter 'c' in group 'g' is active can be done via:
1896 * BITSET_TEST(ActiveCounters[g], c)
1898 GLuint
**ActiveCounters
;
1902 union gl_perf_monitor_counter_value
1910 struct gl_perf_monitor_counter
1912 /** Human readable name for the counter. */
1916 * Data type of the counter. Valid values are FLOAT, UNSIGNED_INT,
1917 * UNSIGNED_INT64_AMD, and PERCENTAGE_AMD.
1921 /** Minimum counter value. */
1922 union gl_perf_monitor_counter_value Minimum
;
1924 /** Maximum counter value. */
1925 union gl_perf_monitor_counter_value Maximum
;
1929 struct gl_perf_monitor_group
1931 /** Human readable name for the group. */
1935 * Maximum number of counters in this group which can be active at the
1938 GLuint MaxActiveCounters
;
1940 /** Array of counters within this group. */
1941 const struct gl_perf_monitor_counter
*Counters
;
1947 * A query object instance as described in INTEL_performance_query.
1949 * NB: We want to keep this and the corresponding backend structure
1950 * relatively lean considering that applications may expect to
1951 * allocate enough objects to be able to query around all draw calls
1954 struct gl_perf_query_object
1956 GLuint Id
; /**< hash table ID/name */
1957 unsigned Used
:1; /**< has been used for 1 or more queries */
1958 unsigned Active
:1; /**< inside Begin/EndPerfQuery */
1959 unsigned Ready
:1; /**< result is ready? */
1964 * Context state for AMD_performance_monitor.
1966 struct gl_perf_monitor_state
1968 /** Array of performance monitor groups (indexed by group ID) */
1969 const struct gl_perf_monitor_group
*Groups
;
1972 /** The table of all performance monitors. */
1973 struct _mesa_HashTable
*Monitors
;
1978 * Context state for INTEL_performance_query.
1980 struct gl_perf_query_state
1982 struct _mesa_HashTable
*Objects
; /**< The table of all performance query objects */
1987 * A bindless sampler object.
1989 struct gl_bindless_sampler
1991 /** Texture unit (set by glUniform1()). */
1994 /** Whether this bindless sampler is bound to a unit. */
1997 /** Texture Target (TEXTURE_1D/2D/3D/etc_INDEX). */
1998 gl_texture_index target
;
2000 /** Pointer to the base of the data. */
2006 * A bindless image object.
2008 struct gl_bindless_image
2010 /** Image unit (set by glUniform1()). */
2013 /** Whether this bindless image is bound to a unit. */
2016 /** Access qualifier (GL_READ_WRITE, GL_READ_ONLY, GL_WRITE_ONLY, or
2017 * GL_NONE to indicate both read-only and write-only)
2021 /** Pointer to the base of the data. */
2027 * Current vertex processing mode: fixed function vs. shader.
2028 * In reality, fixed function is probably implemented by a shader but that's
2029 * not what we care about here.
2033 VP_MODE_FF
, /**< legacy / fixed function */
2034 VP_MODE_SHADER
, /**< ARB vertex program or GLSL vertex shader */
2035 VP_MODE_MAX
/**< for sizing arrays */
2036 } gl_vertex_processing_mode
;
2040 * Base class for any kind of program object
2044 /** FIXME: This must be first until we split shader_info from nir_shader */
2045 struct shader_info info
;
2049 GLubyte
*String
; /**< Null-terminated program text */
2051 /** GL_VERTEX/FRAGMENT_PROGRAM_ARB, GL_GEOMETRY_PROGRAM_NV */
2053 GLenum16 Format
; /**< String encoding format */
2055 GLboolean _Used
; /**< Ever used for drawing? Used for debugging */
2057 struct nir_shader
*nir
;
2059 /* Saved and restored with metadata. Freed with ralloc. */
2060 void *driver_cache_blob
;
2061 size_t driver_cache_blob_size
;
2063 bool is_arb_asm
; /** Is this an ARB assembly-style program */
2065 /** Is this program written to on disk shader cache */
2066 bool program_written_to_cache
;
2068 /** A bitfield indicating which vertex shader inputs consume two slots
2070 * This is used for mapping from single-slot input locations in the GL API
2071 * to dual-slot double input locations in the shader. This field is set
2072 * once as part of linking and never updated again to ensure the mapping
2073 * remains consistent.
2075 * Note: There may be dual-slot variables in the original shader source
2076 * which do not appear in this bitfield due to having been eliminated by
2077 * the compiler prior to DualSlotInputs being calculated. There may also
2078 * be bits set in this bitfield which are set but which the shader never
2079 * reads due to compiler optimizations eliminating such variables after
2080 * DualSlotInputs is calculated.
2082 GLbitfield64 DualSlotInputs
;
2083 /** Subset of OutputsWritten outputs written with non-zero index. */
2084 GLbitfield64 SecondaryOutputsWritten
;
2085 /** TEXTURE_x_BIT bitmask */
2086 GLbitfield16 TexturesUsed
[MAX_COMBINED_TEXTURE_IMAGE_UNITS
];
2087 /** Bitfield of which samplers are used */
2088 GLbitfield SamplersUsed
;
2089 /** Texture units used for shadow sampling. */
2090 GLbitfield ShadowSamplers
;
2091 /** Texture units used for samplerExternalOES */
2092 GLbitfield ExternalSamplersUsed
;
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, \c
2151 * GL_READ_WRITE, or \c GL_NONE to indicate both read-only and
2154 * It may be different, though only more strict than the value of
2155 * \c gl_image_unit::Access for the corresponding image unit.
2157 GLenum16 ImageAccess
[MAX_IMAGE_UNIFORMS
];
2159 struct gl_uniform_block
**UniformBlocks
;
2160 struct gl_uniform_block
**ShaderStorageBlocks
;
2162 /** Which texture target is being sampled
2163 * (TEXTURE_1D/2D/3D/etc_INDEX)
2165 GLubyte SamplerTargets
[MAX_SAMPLERS
];
2168 * Number of samplers declared with the bindless_sampler layout
2169 * qualifier as specified by ARB_bindless_texture.
2171 GLuint NumBindlessSamplers
;
2172 GLboolean HasBoundBindlessSampler
;
2173 struct gl_bindless_sampler
*BindlessSamplers
;
2176 * Number of images declared with the bindless_image layout qualifier
2177 * as specified by ARB_bindless_texture.
2179 GLuint NumBindlessImages
;
2180 GLboolean HasBoundBindlessImage
;
2181 struct gl_bindless_image
*BindlessImages
;
2186 * A bitmask of gl_advanced_blend_mode values
2188 GLbitfield BlendSupport
;
2193 /** ARB assembly-style program fields */
2195 struct prog_instruction
*Instructions
;
2198 * Local parameters used by the program.
2200 * It's dynamically allocated because it is rarely used (just
2201 * assembly-style programs), and MAX_PROGRAM_LOCAL_PARAMS entries
2202 * once it's allocated.
2204 GLfloat (*LocalParams
)[4];
2206 /** Bitmask of which register files are read/written with indirect
2207 * addressing. Mask of (1 << PROGRAM_x) bits.
2209 GLbitfield IndirectRegisterFiles
;
2211 /** Logical counts */
2213 GLuint NumInstructions
;
2214 GLuint NumTemporaries
;
2215 GLuint NumParameters
;
2216 GLuint NumAttributes
;
2217 GLuint NumAddressRegs
;
2218 GLuint NumAluInstructions
;
2219 GLuint NumTexInstructions
;
2220 GLuint NumTexIndirections
;
2222 /** Native, actual h/w counts */
2224 GLuint NumNativeInstructions
;
2225 GLuint NumNativeTemporaries
;
2226 GLuint NumNativeParameters
;
2227 GLuint NumNativeAttributes
;
2228 GLuint NumNativeAddressRegs
;
2229 GLuint NumNativeAluInstructions
;
2230 GLuint NumNativeTexInstructions
;
2231 GLuint NumNativeTexIndirections
;
2234 /** Used by ARB assembly-style programs. Can only be true for vertex
2237 GLboolean IsPositionInvariant
;
2244 * State common to vertex and fragment programs.
2246 struct gl_program_state
2248 GLint ErrorPos
; /* GL_PROGRAM_ERROR_POSITION_ARB/NV */
2249 const char *ErrorString
; /* GL_PROGRAM_ERROR_STRING_ARB/NV */
2254 * Context state for vertex programs.
2256 struct gl_vertex_program_state
2258 GLboolean Enabled
; /**< User-set GL_VERTEX_PROGRAM_ARB/NV flag */
2259 GLboolean PointSizeEnabled
; /**< GL_VERTEX_PROGRAM_POINT_SIZE_ARB/NV */
2260 GLboolean TwoSideEnabled
; /**< GL_VERTEX_PROGRAM_TWO_SIDE_ARB/NV */
2261 /** Should fixed-function T&L be implemented with a vertex prog? */
2262 GLboolean _MaintainTnlProgram
;
2264 struct gl_program
*Current
; /**< User-bound vertex program */
2266 /** Currently enabled and valid vertex program (including internal
2267 * programs, user-defined vertex programs and GLSL vertex shaders).
2268 * This is the program we must use when rendering.
2270 struct gl_program
*_Current
;
2272 GLfloat Parameters
[MAX_PROGRAM_ENV_PARAMS
][4]; /**< Env params */
2274 /** Program to emulate fixed-function T&L (see above) */
2275 struct gl_program
*_TnlProgram
;
2277 /** Cache of fixed-function programs */
2278 struct gl_program_cache
*Cache
;
2280 GLboolean _Overriden
;
2283 * If we have a vertex program, a TNL program or no program at all.
2284 * Note that this value should be kept up to date all the time,
2285 * nevertheless its correctness is asserted in _mesa_update_state.
2286 * The reason is to avoid calling _mesa_update_state twice we need
2287 * this value on draw *before* actually calling _mesa_update_state.
2288 * Also it should need to get recomputed only on changes to the
2289 * vertex program which are heavyweight already.
2291 gl_vertex_processing_mode _VPMode
;
2295 * Context state for tessellation control programs.
2297 struct gl_tess_ctrl_program_state
2299 /** Currently bound and valid shader. */
2300 struct gl_program
*_Current
;
2302 GLint patch_vertices
;
2303 GLfloat patch_default_outer_level
[4];
2304 GLfloat patch_default_inner_level
[2];
2308 * Context state for tessellation evaluation programs.
2310 struct gl_tess_eval_program_state
2312 /** Currently bound and valid shader. */
2313 struct gl_program
*_Current
;
2317 * Context state for geometry programs.
2319 struct gl_geometry_program_state
2322 * Currently enabled and valid program (including internal programs
2323 * and compiled shader programs).
2325 struct gl_program
*_Current
;
2329 * Context state for fragment programs.
2331 struct gl_fragment_program_state
2333 GLboolean Enabled
; /**< User-set fragment program enable flag */
2334 /** Should fixed-function texturing be implemented with a fragment prog? */
2335 GLboolean _MaintainTexEnvProgram
;
2337 struct gl_program
*Current
; /**< User-bound fragment program */
2340 * Currently enabled and valid fragment program (including internal
2341 * programs, user-defined fragment programs and GLSL fragment shaders).
2342 * This is the program we must use when rendering.
2344 struct gl_program
*_Current
;
2346 GLfloat Parameters
[MAX_PROGRAM_ENV_PARAMS
][4]; /**< Env params */
2348 /** Program to emulate fixed-function texture env/combine (see above) */
2349 struct gl_program
*_TexEnvProgram
;
2351 /** Cache of fixed-function programs */
2352 struct gl_program_cache
*Cache
;
2357 * Context state for compute programs.
2359 struct gl_compute_program_state
2361 /** Currently enabled and valid program (including internal programs
2362 * and compiled shader programs).
2364 struct gl_program
*_Current
;
2369 * ATI_fragment_shader runtime state
2372 struct atifs_instruction
;
2373 struct atifs_setupinst
;
2376 * ATI fragment shader
2378 struct ati_fragment_shader
2382 struct atifs_instruction
*Instructions
[2];
2383 struct atifs_setupinst
*SetupInst
[2];
2384 GLfloat Constants
[8][4];
2385 GLbitfield LocalConstDef
; /**< Indicates which constants have been set */
2386 GLubyte numArithInstr
[2];
2387 GLubyte regsAssigned
[2];
2388 GLubyte NumPasses
; /**< 1 or 2 */
2390 * Current compile stage: 0 setup pass1, 1 arith pass1,
2391 * 2 setup pass2, 3 arith pass2.
2394 GLubyte last_optype
;
2395 GLboolean interpinp1
;
2398 * Array of 2 bit values for each tex unit to remember whether
2399 * STR or STQ swizzle was used
2402 struct gl_program
*Program
;
2406 * Context state for GL_ATI_fragment_shader
2408 struct gl_ati_fragment_shader_state
2411 GLboolean Compiling
;
2412 GLfloat GlobalConstants
[8][4];
2413 struct ati_fragment_shader
*Current
;
2417 * Shader subroutine function definition
2419 struct gl_subroutine_function
2423 int num_compat_types
;
2424 const struct glsl_type
**types
;
2428 * Shader information needed by both gl_shader and gl_linked shader.
2430 struct gl_shader_info
2433 * Tessellation Control shader state from layout qualifiers.
2437 * 0 - vertices not declared in shader, or
2438 * 1 .. GL_MAX_PATCH_VERTICES
2444 * Tessellation Evaluation shader state from layout qualifiers.
2448 * GL_TRIANGLES, GL_QUADS, GL_ISOLINES or PRIM_UNKNOWN if it's not set
2451 GLenum16 PrimitiveMode
;
2453 enum gl_tess_spacing Spacing
;
2456 * GL_CW, GL_CCW, or 0 if it's not set in this shader.
2458 GLenum16 VertexOrder
;
2460 * 1, 0, or -1 if it's not set in this shader.
2466 * Geometry shader state from GLSL 1.50 layout qualifiers.
2471 * 0 - Invocations count not declared in shader, or
2472 * 1 .. Const.MaxGeometryShaderInvocations
2476 * GL_POINTS, GL_LINES, GL_LINES_ADJACENCY, GL_TRIANGLES, or
2477 * GL_TRIANGLES_ADJACENCY, or PRIM_UNKNOWN if it's not set in this
2482 * GL_POINTS, GL_LINE_STRIP or GL_TRIANGLE_STRIP, or PRIM_UNKNOWN if
2483 * it's not set in this shader.
2485 GLenum16 OutputType
;
2489 * Compute shader state from ARB_compute_shader and
2490 * ARB_compute_variable_group_size layout qualifiers.
2494 * Size specified using local_size_{x,y,z}, or all 0's to indicate that
2495 * it's not set in this shader.
2497 unsigned LocalSize
[3];
2500 * Whether a variable work group size has been specified as defined by
2501 * ARB_compute_variable_group_size.
2503 bool LocalSizeVariable
;
2508 * A linked GLSL shader object.
2510 struct gl_linked_shader
2512 gl_shader_stage Stage
;
2515 unsigned SourceChecksum
;
2518 struct gl_program
*Program
; /**< Post-compile assembly code */
2521 * \name Sampler tracking
2523 * \note Each of these fields is only set post-linking.
2526 GLbitfield shadow_samplers
; /**< Samplers used for shadow sampling. */
2530 * Number of default uniform block components used by this shader.
2532 * This field is only set post-linking.
2534 unsigned num_uniform_components
;
2537 * Number of combined uniform components used by this shader.
2539 * This field is only set post-linking. It is the sum of the uniform block
2540 * sizes divided by sizeof(float), and num_uniform_compoennts.
2542 unsigned num_combined_uniform_components
;
2544 struct exec_list
*ir
;
2545 struct exec_list
*packed_varyings
;
2546 struct exec_list
*fragdata_arrays
;
2547 struct glsl_symbol_table
*symbols
;
2550 * ARB_gl_spirv related data.
2552 * This is actually a reference to the gl_shader::spirv_data, which
2553 * stores information that is also needed during linking.
2555 struct gl_shader_spirv_data
*spirv_data
;
2560 * Compile status enum. COMPILE_SKIPPED is used to indicate the compile
2561 * was skipped due to the shader matching one that's been seen before by
2562 * the on-disk cache.
2564 enum gl_compile_status
2566 COMPILE_FAILURE
= 0,
2573 * A GLSL shader object.
2577 /** GL_FRAGMENT_SHADER || GL_VERTEX_SHADER || GL_GEOMETRY_SHADER_ARB ||
2578 * GL_TESS_CONTROL_SHADER || GL_TESS_EVALUATION_SHADER.
2579 * Must be the first field.
2582 gl_shader_stage Stage
;
2583 GLuint Name
; /**< AKA the handle */
2584 GLint RefCount
; /**< Reference count */
2585 GLchar
*Label
; /**< GL_KHR_debug */
2586 unsigned char sha1
[20]; /**< SHA1 hash of pre-processed source */
2587 GLboolean DeletePending
;
2588 bool IsES
; /**< True if this shader uses GLSL ES */
2590 enum gl_compile_status CompileStatus
;
2593 unsigned SourceChecksum
; /**< for debug/logging purposes */
2595 const GLchar
*Source
; /**< Source code string */
2597 const GLchar
*FallbackSource
; /**< Fallback string used by on-disk cache*/
2601 unsigned Version
; /**< GLSL version used for linking */
2604 * A bitmask of gl_advanced_blend_mode values
2606 GLbitfield BlendSupport
;
2608 struct exec_list
*ir
;
2609 struct glsl_symbol_table
*symbols
;
2612 * Whether early fragment tests are enabled as defined by
2613 * ARB_shader_image_load_store.
2615 bool EarlyFragmentTests
;
2617 bool ARB_fragment_coord_conventions_enable
;
2619 bool redeclares_gl_fragcoord
;
2620 bool uses_gl_fragcoord
;
2622 bool PostDepthCoverage
;
2623 bool PixelInterlockOrdered
;
2624 bool PixelInterlockUnordered
;
2625 bool SampleInterlockOrdered
;
2626 bool SampleInterlockUnordered
;
2630 * Fragment shader state from GLSL 1.50 layout qualifiers.
2632 bool origin_upper_left
;
2633 bool pixel_center_integer
;
2636 * Whether bindless_sampler/bindless_image, and respectively
2637 * bound_sampler/bound_image are declared at global scope as defined by
2638 * ARB_bindless_texture.
2640 bool bindless_sampler
;
2641 bool bindless_image
;
2645 /** Global xfb_stride out qualifier if any */
2646 GLuint TransformFeedbackBufferStride
[MAX_FEEDBACK_BUFFERS
];
2648 struct gl_shader_info info
;
2650 /* ARB_gl_spirv related data */
2651 struct gl_shader_spirv_data
*spirv_data
;
2655 struct gl_uniform_buffer_variable
2660 * Name of the uniform as seen by glGetUniformIndices.
2662 * glGetUniformIndices requires that the block instance index \b not be
2663 * present in the name of queried uniforms.
2666 * \c gl_uniform_buffer_variable::IndexName and
2667 * \c gl_uniform_buffer_variable::Name may point to identical storage.
2671 const struct glsl_type
*Type
;
2672 unsigned int Offset
;
2677 struct gl_uniform_block
2679 /** Declared name of the uniform block */
2682 /** Array of supplemental information about UBO ir_variables. */
2683 struct gl_uniform_buffer_variable
*Uniforms
;
2687 * Index (GL_UNIFORM_BLOCK_BINDING) into ctx->UniformBufferBindings[] to use
2688 * with glBindBufferBase to bind a buffer object to this uniform block.
2693 * Minimum size (in bytes) of a buffer object to back this uniform buffer
2694 * (GL_UNIFORM_BLOCK_DATA_SIZE).
2696 GLuint UniformBufferSize
;
2698 /** Stages that reference this block */
2702 * Linearized array index for uniform block instance arrays
2704 * Given a uniform block instance array declared with size
2705 * blk[s_0][s_1]..[s_m], the block referenced by blk[i_0][i_1]..[i_m] will
2706 * have the linearized array index
2709 * i_m + ∑ i_j * ∏ s_k
2712 * For a uniform block instance that is not an array, this is always 0.
2714 uint8_t linearized_array_index
;
2717 * Layout specified in the shader
2719 * This isn't accessible through the API, but it is used while
2720 * cross-validating uniform blocks.
2722 enum glsl_interface_packing _Packing
;
2723 GLboolean _RowMajor
;
2727 * Structure that represents a reference to an atomic buffer from some
2730 struct gl_active_atomic_buffer
2732 /** Uniform indices of the atomic counters declared within it. */
2736 /** Binding point index associated with it. */
2739 /** Minimum reasonable size it is expected to have. */
2742 /** Shader stages making use of it. */
2743 GLboolean StageReferences
[MESA_SHADER_STAGES
];
2747 * Data container for shader queries. This holds only the minimal
2748 * amount of required information for resource queries to work.
2750 struct gl_shader_variable
2753 * Declared type of the variable
2755 const struct glsl_type
*type
;
2758 * If the variable is in an interface block, this is the type of the block.
2760 const struct glsl_type
*interface_type
;
2763 * For variables inside structs (possibly recursively), this is the
2764 * outermost struct type.
2766 const struct glsl_type
*outermost_struct_type
;
2769 * Declared name of the variable
2774 * Storage location of the base of this variable
2776 * The precise meaning of this field depends on the nature of the variable.
2778 * - Vertex shader input: one of the values from \c gl_vert_attrib.
2779 * - Vertex shader output: one of the values from \c gl_varying_slot.
2780 * - Geometry shader input: one of the values from \c gl_varying_slot.
2781 * - Geometry shader output: one of the values from \c gl_varying_slot.
2782 * - Fragment shader input: one of the values from \c gl_varying_slot.
2783 * - Fragment shader output: one of the values from \c gl_frag_result.
2784 * - Uniforms: Per-stage uniform slot number for default uniform block.
2785 * - Uniforms: Index within the uniform block definition for UBO members.
2786 * - Non-UBO Uniforms: explicit location until linking then reused to
2787 * store uniform slot number.
2788 * - Other: This field is not currently used.
2790 * If the variable is a uniform, shader input, or shader output, and the
2791 * slot has not been assigned, the value will be -1.
2796 * Specifies the first component the variable is stored in as per
2797 * ARB_enhanced_layouts.
2799 unsigned component
:2;
2802 * Output index for dual source blending.
2805 * The GLSL spec only allows the values 0 or 1 for the index in \b dual
2811 * Specifies whether a shader input/output is per-patch in tessellation
2817 * Storage class of the variable.
2819 * \sa (n)ir_variable_mode
2824 * Interpolation mode for shader inputs / outputs
2826 * \sa glsl_interp_mode
2828 unsigned interpolation
:2;
2831 * Was the location explicitly set in the shader?
2833 * If the location is explicitly set in the shader, it \b cannot be changed
2834 * by the linker or by the API (e.g., calls to \c glBindAttribLocation have
2837 unsigned explicit_location
:1;
2840 * Precision qualifier.
2842 unsigned precision
:2;
2846 * Active resource in a gl_shader_program
2848 struct gl_program_resource
2850 GLenum16 Type
; /** Program interface type. */
2851 const void *Data
; /** Pointer to resource associated data structure. */
2852 uint8_t StageReferences
; /** Bitmask of shader stage references. */
2856 * Link status enum. LINKING_SKIPPED is used to indicate linking
2857 * was skipped due to the shader being loaded from the on-disk cache.
2861 LINKING_FAILURE
= 0,
2867 * A data structure to be shared by gl_shader_program and gl_program.
2869 struct gl_shader_program_data
2871 GLint RefCount
; /**< Reference count */
2873 /** SHA1 hash of linked shader program */
2874 unsigned char sha1
[20];
2876 unsigned NumUniformStorage
;
2877 unsigned NumHiddenUniforms
;
2878 struct gl_uniform_storage
*UniformStorage
;
2880 unsigned NumUniformBlocks
;
2881 unsigned NumShaderStorageBlocks
;
2883 struct gl_uniform_block
*UniformBlocks
;
2884 struct gl_uniform_block
*ShaderStorageBlocks
;
2886 struct gl_active_atomic_buffer
*AtomicBuffers
;
2887 unsigned NumAtomicBuffers
;
2889 /* Shader cache variables used during restore */
2890 unsigned NumUniformDataSlots
;
2891 union gl_constant_value
*UniformDataSlots
;
2893 /* Used to hold initial uniform values for program binary restores.
2895 * From the ARB_get_program_binary spec:
2897 * "A successful call to ProgramBinary will reset all uniform
2898 * variables to their initial values. The initial value is either
2899 * the value of the variable's initializer as specified in the
2900 * original shader source, or 0 if no initializer was present.
2902 union gl_constant_value
*UniformDataDefaults
;
2904 GLboolean Validated
;
2906 /** List of all active resources after linking. */
2907 struct gl_program_resource
*ProgramResourceList
;
2908 unsigned NumProgramResourceList
;
2910 enum gl_link_status LinkStatus
; /**< GL_LINK_STATUS */
2913 unsigned Version
; /**< GLSL version used for linking */
2915 /* Mask of stages this program was linked against */
2916 unsigned linked_stages
;
2918 /* Whether the shaders of this program are loaded from SPIR-V binaries
2919 * (all have the SPIR_V_BINARY_ARB state). This was introduced by the
2920 * ARB_gl_spirv extension.
2926 * A GLSL program object.
2927 * Basically a linked collection of vertex and fragment shaders.
2929 struct gl_shader_program
2931 GLenum16 Type
; /**< Always GL_SHADER_PROGRAM (internal token) */
2932 GLuint Name
; /**< aka handle or ID */
2933 GLchar
*Label
; /**< GL_KHR_debug */
2934 GLint RefCount
; /**< Reference count */
2935 GLboolean DeletePending
;
2938 * Is the application intending to glGetProgramBinary this program?
2940 GLboolean BinaryRetreivableHint
;
2943 * Indicates whether program can be bound for individual pipeline stages
2944 * using UseProgramStages after it is next linked.
2946 GLboolean SeparateShader
;
2948 GLuint NumShaders
; /**< number of attached shaders */
2949 struct gl_shader
**Shaders
; /**< List of attached the shaders */
2952 * User-defined attribute bindings
2954 * These are set via \c glBindAttribLocation and are used to direct the
2955 * GLSL linker. These are \b not the values used in the compiled shader,
2956 * and they are \b not the values returned by \c glGetAttribLocation.
2958 struct string_to_uint_map
*AttributeBindings
;
2961 * User-defined fragment data bindings
2963 * These are set via \c glBindFragDataLocation and are used to direct the
2964 * GLSL linker. These are \b not the values used in the compiled shader,
2965 * and they are \b not the values returned by \c glGetFragDataLocation.
2967 struct string_to_uint_map
*FragDataBindings
;
2968 struct string_to_uint_map
*FragDataIndexBindings
;
2971 * Transform feedback varyings last specified by
2972 * glTransformFeedbackVaryings().
2974 * For the current set of transform feedback varyings used for transform
2975 * feedback output, see LinkedTransformFeedback.
2978 GLenum16 BufferMode
;
2979 /** Global xfb_stride out qualifier if any */
2980 GLuint BufferStride
[MAX_FEEDBACK_BUFFERS
];
2982 GLchar
**VaryingNames
; /**< Array [NumVarying] of char * */
2983 } TransformFeedback
;
2985 struct gl_program
*last_vert_prog
;
2987 /** Post-link gl_FragDepth layout for ARB_conservative_depth. */
2988 enum gl_frag_depth_layout FragDepthLayout
;
2991 * Geometry shader state - copied into gl_program by
2992 * _mesa_copy_linked_program_data().
2997 bool UsesEndPrimitive
;
3002 * Compute shader state - copied into gl_program by
3003 * _mesa_copy_linked_program_data().
3007 * Size of shared variables accessed by the compute shader.
3009 unsigned SharedSize
;
3012 /** Data shared by gl_program and gl_shader_program */
3013 struct gl_shader_program_data
*data
;
3016 * Mapping from GL uniform locations returned by \c glUniformLocation to
3017 * UniformStorage entries. Arrays will have multiple contiguous slots
3018 * in the UniformRemapTable, all pointing to the same UniformStorage entry.
3020 unsigned NumUniformRemapTable
;
3021 struct gl_uniform_storage
**UniformRemapTable
;
3024 * Sometimes there are empty slots left over in UniformRemapTable after we
3025 * allocate slots to explicit locations. This list stores the blocks of
3026 * continuous empty slots inside UniformRemapTable.
3028 struct exec_list EmptyUniformLocations
;
3031 * Total number of explicit uniform location including inactive uniforms.
3033 unsigned NumExplicitUniformLocations
;
3036 * Map of active uniform names to locations
3038 * Maps any active uniform that is not an array element to a location.
3039 * Each active uniform, including individual structure members will appear
3040 * in this map. This roughly corresponds to the set of names that would be
3041 * enumerated by \c glGetActiveUniform.
3043 struct string_to_uint_map
*UniformHash
;
3045 GLboolean SamplersValidated
; /**< Samplers validated against texture units? */
3047 bool IsES
; /**< True if this program uses GLSL ES */
3050 * Per-stage shaders resulting from the first stage of linking.
3052 * Set of linked shaders for this program. The array is accessed using the
3053 * \c MESA_SHADER_* defines. Entries for non-existent stages will be
3056 struct gl_linked_shader
*_LinkedShaders
[MESA_SHADER_STAGES
];
3059 * True if any of the fragment shaders attached to this program use:
3060 * #extension ARB_fragment_coord_conventions: enable
3062 GLboolean ARB_fragment_coord_conventions_enable
;
3066 #define GLSL_DUMP 0x1 /**< Dump shaders to stdout */
3067 #define GLSL_LOG 0x2 /**< Write shaders to files */
3068 #define GLSL_UNIFORMS 0x4 /**< Print glUniform calls */
3069 #define GLSL_NOP_VERT 0x8 /**< Force no-op vertex shaders */
3070 #define GLSL_NOP_FRAG 0x10 /**< Force no-op fragment shaders */
3071 #define GLSL_USE_PROG 0x20 /**< Log glUseProgram calls */
3072 #define GLSL_REPORT_ERRORS 0x40 /**< Print compilation errors */
3073 #define GLSL_DUMP_ON_ERROR 0x80 /**< Dump shaders to stderr on compile error */
3074 #define GLSL_CACHE_INFO 0x100 /**< Print debug information about shader cache */
3075 #define GLSL_CACHE_FALLBACK 0x200 /**< Force shader cache fallback paths */
3079 * Context state for GLSL vertex/fragment shaders.
3080 * Extended to support pipeline object
3082 struct gl_pipeline_object
3084 /** Name of the pipeline object as received from glGenProgramPipelines.
3085 * It would be 0 for shaders without separate shader objects.
3091 GLchar
*Label
; /**< GL_KHR_debug */
3094 * Programs used for rendering
3096 * There is a separate program set for each shader stage.
3098 struct gl_program
*CurrentProgram
[MESA_SHADER_STAGES
];
3100 struct gl_shader_program
*ReferencedPrograms
[MESA_SHADER_STAGES
];
3103 * Program used by glUniform calls.
3105 * Explicitly set by \c glUseProgram and \c glActiveProgramEXT.
3107 struct gl_shader_program
*ActiveProgram
;
3109 GLbitfield Flags
; /**< Mask of GLSL_x flags */
3110 GLboolean EverBound
; /**< Has the pipeline object been created */
3111 GLboolean Validated
; /**< Pipeline Validation status */
3117 * Context state for GLSL pipeline shaders.
3119 struct gl_pipeline_shader_state
3121 /** Currently bound pipeline object. See _mesa_BindProgramPipeline() */
3122 struct gl_pipeline_object
*Current
;
3124 /** Default Object to ensure that _Shader is never NULL */
3125 struct gl_pipeline_object
*Default
;
3127 /** Pipeline objects */
3128 struct _mesa_HashTable
*Objects
;
3132 * Compiler options for a single GLSL shaders type
3134 struct gl_shader_compiler_options
3136 /** Driver-selectable options: */
3137 GLboolean EmitNoLoops
;
3138 GLboolean EmitNoCont
; /**< Emit CONT opcode? */
3139 GLboolean EmitNoMainReturn
; /**< Emit CONT/RET opcodes? */
3140 GLboolean EmitNoPow
; /**< Emit POW opcodes? */
3141 GLboolean EmitNoSat
; /**< Emit SAT opcodes? */
3142 GLboolean LowerCombinedClipCullDistance
; /** Lower gl_ClipDistance and
3143 * gl_CullDistance together from
3144 * float[8] to vec4[2]
3148 * \name Forms of indirect addressing the driver cannot do.
3151 GLboolean EmitNoIndirectInput
; /**< No indirect addressing of inputs */
3152 GLboolean EmitNoIndirectOutput
; /**< No indirect addressing of outputs */
3153 GLboolean EmitNoIndirectTemp
; /**< No indirect addressing of temps */
3154 GLboolean EmitNoIndirectUniform
; /**< No indirect addressing of constants */
3155 GLboolean EmitNoIndirectSampler
; /**< No indirect addressing of samplers */
3158 GLuint MaxIfDepth
; /**< Maximum nested IF blocks */
3159 GLuint MaxUnrollIterations
;
3162 * Optimize code for array of structures backends.
3164 * This is a proxy for:
3165 * - preferring DP4 instructions (rather than MUL/MAD) for
3166 * matrix * vector operations, such as position transformation.
3168 GLboolean OptimizeForAOS
;
3170 /** Lower UBO and SSBO access to intrinsics. */
3171 GLboolean LowerBufferInterfaceBlocks
;
3173 /** Clamp UBO and SSBO block indices so they don't go out-of-bounds. */
3174 GLboolean ClampBlockIndicesToArrayBounds
;
3176 const struct nir_shader_compiler_options
*NirOptions
;
3181 * Occlusion/timer query object.
3183 struct gl_query_object
3185 GLenum16 Target
; /**< The query target, when active */
3186 GLuint Id
; /**< hash table ID/name */
3187 GLchar
*Label
; /**< GL_KHR_debug */
3188 GLuint64EXT Result
; /**< the counter */
3189 GLboolean Active
; /**< inside Begin/EndQuery */
3190 GLboolean Ready
; /**< result is ready? */
3191 GLboolean EverBound
;/**< has query object ever been bound */
3192 GLuint Stream
; /**< The stream */
3197 * Context state for query objects.
3199 struct gl_query_state
3201 struct _mesa_HashTable
*QueryObjects
;
3202 struct gl_query_object
*CurrentOcclusionObject
; /* GL_ARB_occlusion_query */
3203 struct gl_query_object
*CurrentTimerObject
; /* GL_EXT_timer_query */
3205 /** GL_NV_conditional_render */
3206 struct gl_query_object
*CondRenderQuery
;
3208 /** GL_EXT_transform_feedback */
3209 struct gl_query_object
*PrimitivesGenerated
[MAX_VERTEX_STREAMS
];
3210 struct gl_query_object
*PrimitivesWritten
[MAX_VERTEX_STREAMS
];
3212 /** GL_ARB_transform_feedback_overflow_query */
3213 struct gl_query_object
*TransformFeedbackOverflow
[MAX_VERTEX_STREAMS
];
3214 struct gl_query_object
*TransformFeedbackOverflowAny
;
3216 /** GL_ARB_timer_query */
3217 struct gl_query_object
*TimeElapsed
;
3219 /** GL_ARB_pipeline_statistics_query */
3220 struct gl_query_object
*pipeline_stats
[MAX_PIPELINE_STATISTICS
];
3222 GLenum16 CondRenderMode
;
3226 /** Sync object state */
3227 struct gl_sync_object
3229 GLuint Name
; /**< Fence name */
3230 GLint RefCount
; /**< Reference count */
3231 GLchar
*Label
; /**< GL_KHR_debug */
3232 GLboolean DeletePending
; /**< Object was deleted while there were still
3233 * live references (e.g., sync not yet finished)
3235 GLenum16 SyncCondition
;
3236 GLbitfield Flags
; /**< Flags passed to glFenceSync */
3237 GLuint StatusFlag
:1; /**< Has the sync object been signaled? */
3242 * State which can be shared by multiple contexts:
3244 struct gl_shared_state
3246 simple_mtx_t Mutex
; /**< for thread safety */
3247 GLint RefCount
; /**< Reference count */
3248 struct _mesa_HashTable
*DisplayList
; /**< Display lists hash table */
3249 struct _mesa_HashTable
*BitmapAtlas
; /**< For optimized glBitmap text */
3250 struct _mesa_HashTable
*TexObjects
; /**< Texture objects hash table */
3252 /** Default texture objects (shared by all texture units) */
3253 struct gl_texture_object
*DefaultTex
[NUM_TEXTURE_TARGETS
];
3255 /** Fallback texture used when a bound texture is incomplete */
3256 struct gl_texture_object
*FallbackTex
[NUM_TEXTURE_TARGETS
];
3259 * \name Thread safety and statechange notification for texture
3262 * \todo Improve the granularity of locking.
3265 mtx_t TexMutex
; /**< texobj thread safety */
3266 GLuint TextureStateStamp
; /**< state notification for shared tex */
3269 /** Default buffer object for vertex arrays that aren't in VBOs */
3270 struct gl_buffer_object
*NullBufferObj
;
3273 * \name Vertex/geometry/fragment programs
3276 struct _mesa_HashTable
*Programs
; /**< All vertex/fragment programs */
3277 struct gl_program
*DefaultVertexProgram
;
3278 struct gl_program
*DefaultFragmentProgram
;
3281 /* GL_ATI_fragment_shader */
3282 struct _mesa_HashTable
*ATIShaders
;
3283 struct ati_fragment_shader
*DefaultFragmentShader
;
3285 struct _mesa_HashTable
*BufferObjects
;
3287 /** Table of both gl_shader and gl_shader_program objects */
3288 struct _mesa_HashTable
*ShaderObjects
;
3290 /* GL_EXT_framebuffer_object */
3291 struct _mesa_HashTable
*RenderBuffers
;
3292 struct _mesa_HashTable
*FrameBuffers
;
3295 struct set
*SyncObjects
;
3297 /** GL_ARB_sampler_objects */
3298 struct _mesa_HashTable
*SamplerObjects
;
3300 /* GL_ARB_bindless_texture */
3301 struct hash_table_u64
*TextureHandles
;
3302 struct hash_table_u64
*ImageHandles
;
3303 mtx_t HandlesMutex
; /**< For texture/image handles safety */
3306 * Some context in this share group was affected by a GPU reset
3308 * On the next call to \c glGetGraphicsResetStatus, contexts that have not
3309 * been affected by a GPU reset must also return
3310 * \c GL_INNOCENT_CONTEXT_RESET_ARB.
3312 * Once this field becomes true, it is never reset to false.
3314 bool ShareGroupReset
;
3316 /** EXT_external_objects */
3317 struct _mesa_HashTable
*MemoryObjects
;
3319 /** EXT_semaphore */
3320 struct _mesa_HashTable
*SemaphoreObjects
;
3323 * Some context in this share group was affected by a disjoint
3324 * operation. This operation can be anything that has effects on
3325 * values of timer queries in such manner that they become invalid for
3326 * performance metrics. As example gpu reset, counter overflow or gpu
3327 * frequency changes.
3329 bool DisjointOperation
;
3335 * Renderbuffers represent drawing surfaces such as color, depth and/or
3336 * stencil. A framebuffer object has a set of renderbuffers.
3337 * Drivers will typically derive subclasses of this type.
3339 struct gl_renderbuffer
3341 simple_mtx_t Mutex
; /**< for thread safety */
3342 GLuint ClassID
; /**< Useful for drivers */
3344 GLchar
*Label
; /**< GL_KHR_debug */
3346 GLuint Width
, Height
;
3348 GLboolean Purgeable
; /**< Is the buffer purgeable under memory pressure? */
3349 GLboolean AttachedAnytime
; /**< TRUE if it was attached to a framebuffer */
3351 * True for renderbuffers that wrap textures, giving the driver a chance to
3352 * flush render caches through the FinishRenderTexture hook.
3354 * Drivers may also set this on renderbuffers other than those generated by
3355 * glFramebufferTexture(), though it means FinishRenderTexture() would be
3356 * called without a rb->TexImage.
3358 GLboolean NeedsFinishRenderTexture
;
3359 GLubyte NumSamples
; /**< zero means not multisampled */
3360 GLubyte NumStorageSamples
; /**< for AMD_framebuffer_multisample_advanced */
3361 GLenum16 InternalFormat
; /**< The user-specified format */
3362 GLenum16 _BaseFormat
; /**< Either GL_RGB, GL_RGBA, GL_DEPTH_COMPONENT or
3363 GL_STENCIL_INDEX. */
3364 mesa_format Format
; /**< The actual renderbuffer memory format */
3366 * Pointer to the texture image if this renderbuffer wraps a texture,
3369 * Note that the reference on the gl_texture_object containing this
3370 * TexImage is held by the gl_renderbuffer_attachment.
3372 struct gl_texture_image
*TexImage
;
3374 /** Delete this renderbuffer */
3375 void (*Delete
)(struct gl_context
*ctx
, struct gl_renderbuffer
*rb
);
3377 /** Allocate new storage for this renderbuffer */
3378 GLboolean (*AllocStorage
)(struct gl_context
*ctx
,
3379 struct gl_renderbuffer
*rb
,
3380 GLenum internalFormat
,
3381 GLuint width
, GLuint height
);
3386 * A renderbuffer attachment points to either a texture object (and specifies
3387 * a mipmap level, cube face or 3D texture slice) or points to a renderbuffer.
3389 struct gl_renderbuffer_attachment
3391 GLenum16 Type
; /**< \c GL_NONE or \c GL_TEXTURE or \c GL_RENDERBUFFER_EXT */
3395 * If \c Type is \c GL_RENDERBUFFER_EXT, this stores a pointer to the
3396 * application supplied renderbuffer object.
3398 struct gl_renderbuffer
*Renderbuffer
;
3401 * If \c Type is \c GL_TEXTURE, this stores a pointer to the application
3402 * supplied texture object.
3404 struct gl_texture_object
*Texture
;
3405 GLuint TextureLevel
; /**< Attached mipmap level. */
3406 GLuint CubeMapFace
; /**< 0 .. 5, for cube map textures. */
3407 GLuint Zoffset
; /**< Slice for 3D textures, or layer for both 1D
3408 * and 2D array textures */
3414 * A framebuffer is a collection of renderbuffers (color, depth, stencil, etc).
3415 * In C++ terms, think of this as a base class from which device drivers
3416 * will make derived classes.
3418 struct gl_framebuffer
3420 simple_mtx_t Mutex
; /**< for thread safety */
3422 * If zero, this is a window system framebuffer. If non-zero, this
3423 * is a FBO framebuffer; note that for some devices (i.e. those with
3424 * a natural pixel coordinate system for FBOs that differs from the
3425 * OpenGL/Mesa coordinate system), this means that the viewport,
3426 * polygon face orientation, and polygon stipple will have to be inverted.
3431 GLchar
*Label
; /**< GL_KHR_debug */
3433 GLboolean DeletePending
;
3436 * The framebuffer's visual. Immutable if this is a window system buffer.
3437 * Computed from attachments if user-made FBO.
3439 struct gl_config Visual
;
3442 * Size of frame buffer in pixels. If there are no attachments, then both
3445 GLuint Width
, Height
;
3448 * In the case that the framebuffer has no attachment (i.e.
3449 * GL_ARB_framebuffer_no_attachments) then the geometry of
3450 * the framebuffer is specified by the default values.
3453 GLuint Width
, Height
, Layers
, NumSamples
;
3454 GLboolean FixedSampleLocations
;
3455 /* Derived from NumSamples by the driver so that it can choose a valid
3456 * value for the hardware.
3461 /** \name Drawing bounds (Intersection of buffer size and scissor box)
3462 * The drawing region is given by [_Xmin, _Xmax) x [_Ymin, _Ymax),
3463 * (inclusive for _Xmin and _Ymin while exclusive for _Xmax and _Ymax)
3470 /** \name Derived Z buffer stuff */
3472 GLuint _DepthMax
; /**< Max depth buffer value */
3473 GLfloat _DepthMaxF
; /**< Float max depth buffer value */
3474 GLfloat _MRD
; /**< minimum resolvable difference in Z values */
3477 /** One of the GL_FRAMEBUFFER_(IN)COMPLETE_* tokens */
3480 /** Whether one of Attachment has Type != GL_NONE
3481 * NOTE: the values for Width and Height are set to 0 in case of having
3482 * no attachments, a backend driver supporting the extension
3483 * GL_ARB_framebuffer_no_attachments must check for the flag _HasAttachments
3484 * and if GL_FALSE, must then use the values in DefaultGeometry to initialize
3485 * its viewport, scissor and so on (in particular _Xmin, _Xmax, _Ymin and
3486 * _Ymax do NOT take into account _HasAttachments being false). To get the
3487 * geometry of the framebuffer, the helper functions
3488 * _mesa_geometric_width(),
3489 * _mesa_geometric_height(),
3490 * _mesa_geometric_samples() and
3491 * _mesa_geometric_layers()
3492 * are available that check _HasAttachments.
3494 bool _HasAttachments
;
3496 GLbitfield _IntegerBuffers
; /**< Which color buffers are integer valued */
3498 /* ARB_color_buffer_float */
3499 GLboolean _AllColorBuffersFixedPoint
; /* no integer, no float */
3500 GLboolean _HasSNormOrFloatColorBuffer
;
3503 * The maximum number of layers in the framebuffer, or 0 if the framebuffer
3504 * is not layered. For cube maps and cube map arrays, each cube face
3505 * counts as a layer. As the case for Width, Height a backend driver
3506 * supporting GL_ARB_framebuffer_no_attachments must use DefaultGeometry
3507 * in the case that _HasAttachments is false
3509 GLuint MaxNumLayers
;
3511 /** Array of all renderbuffer attachments, indexed by BUFFER_* tokens. */
3512 struct gl_renderbuffer_attachment Attachment
[BUFFER_COUNT
];
3514 /* In unextended OpenGL these vars are part of the GL_COLOR_BUFFER
3515 * attribute group and GL_PIXEL attribute group, respectively.
3517 GLenum16 ColorDrawBuffer
[MAX_DRAW_BUFFERS
];
3518 GLenum16 ColorReadBuffer
;
3520 /* GL_ARB_sample_locations */
3521 GLfloat
*SampleLocationTable
; /**< If NULL, no table has been specified */
3522 GLboolean ProgrammableSampleLocations
;
3523 GLboolean SampleLocationPixelGrid
;
3525 /** Computed from ColorDraw/ReadBuffer above */
3526 GLuint _NumColorDrawBuffers
;
3527 gl_buffer_index _ColorDrawBufferIndexes
[MAX_DRAW_BUFFERS
];
3528 gl_buffer_index _ColorReadBufferIndex
;
3529 struct gl_renderbuffer
*_ColorDrawBuffers
[MAX_DRAW_BUFFERS
];
3530 struct gl_renderbuffer
*_ColorReadBuffer
;
3532 /* GL_MESA_framebuffer_flip_y */
3535 /** Delete this framebuffer */
3536 void (*Delete
)(struct gl_framebuffer
*fb
);
3541 * Precision info for shader datatypes. See glGetShaderPrecisionFormat().
3545 GLushort RangeMin
; /**< min value exponent */
3546 GLushort RangeMax
; /**< max value exponent */
3547 GLushort Precision
; /**< number of mantissa bits */
3552 * Limits for vertex, geometry and fragment programs/shaders.
3554 struct gl_program_constants
3556 /* logical limits */
3557 GLuint MaxInstructions
;
3558 GLuint MaxAluInstructions
;
3559 GLuint MaxTexInstructions
;
3560 GLuint MaxTexIndirections
;
3563 GLuint MaxAddressRegs
;
3564 GLuint MaxAddressOffset
; /**< [-MaxAddressOffset, MaxAddressOffset-1] */
3565 GLuint MaxParameters
;
3566 GLuint MaxLocalParams
;
3567 GLuint MaxEnvParams
;
3568 /* native/hardware limits */
3569 GLuint MaxNativeInstructions
;
3570 GLuint MaxNativeAluInstructions
;
3571 GLuint MaxNativeTexInstructions
;
3572 GLuint MaxNativeTexIndirections
;
3573 GLuint MaxNativeAttribs
;
3574 GLuint MaxNativeTemps
;
3575 GLuint MaxNativeAddressRegs
;
3576 GLuint MaxNativeParameters
;
3578 GLuint MaxUniformComponents
; /**< Usually == MaxParameters * 4 */
3581 * \name Per-stage input / output limits
3583 * Previous to OpenGL 3.2, the intrastage data limits were advertised with
3584 * a single value: GL_MAX_VARYING_COMPONENTS (GL_MAX_VARYING_VECTORS in
3585 * ES). This is stored as \c gl_constants::MaxVarying.
3587 * Starting with OpenGL 3.2, the limits are advertised with per-stage
3588 * variables. Each stage as a certain number of outputs that it can feed
3589 * to the next stage and a certain number inputs that it can consume from
3590 * the previous stage.
3592 * Vertex shader inputs do not participate this in this accounting.
3593 * These are tracked exclusively by \c gl_program_constants::MaxAttribs.
3595 * Fragment shader outputs do not participate this in this accounting.
3596 * These are tracked exclusively by \c gl_constants::MaxDrawBuffers.
3599 GLuint MaxInputComponents
;
3600 GLuint MaxOutputComponents
;
3603 /* ES 2.0 and GL_ARB_ES2_compatibility */
3604 struct gl_precision LowFloat
, MediumFloat
, HighFloat
;
3605 struct gl_precision LowInt
, MediumInt
, HighInt
;
3606 /* GL_ARB_uniform_buffer_object */
3607 GLuint MaxUniformBlocks
;
3608 uint64_t MaxCombinedUniformComponents
;
3609 GLuint MaxTextureImageUnits
;
3611 /* GL_ARB_shader_atomic_counters */
3612 GLuint MaxAtomicBuffers
;
3613 GLuint MaxAtomicCounters
;
3615 /* GL_ARB_shader_image_load_store */
3616 GLuint MaxImageUniforms
;
3618 /* GL_ARB_shader_storage_buffer_object */
3619 GLuint MaxShaderStorageBlocks
;
3623 * Constants which may be overridden by device driver during context creation
3624 * but are never changed after that.
3628 GLuint MaxTextureMbytes
; /**< Max memory per image, in MB */
3629 GLuint MaxTextureLevels
; /**< Max mipmap levels. */
3630 GLuint Max3DTextureLevels
; /**< Max mipmap levels for 3D textures */
3631 GLuint MaxCubeTextureLevels
; /**< Max mipmap levels for cube textures */
3632 GLuint MaxArrayTextureLayers
; /**< Max layers in array textures */
3633 GLuint MaxTextureRectSize
; /**< Max rectangle texture size, in pixes */
3634 GLuint MaxTextureCoordUnits
;
3635 GLuint MaxCombinedTextureImageUnits
;
3636 GLuint MaxTextureUnits
; /**< = MIN(CoordUnits, FragmentProgram.ImageUnits) */
3637 GLfloat MaxTextureMaxAnisotropy
; /**< GL_EXT_texture_filter_anisotropic */
3638 GLfloat MaxTextureLodBias
; /**< GL_EXT_texture_lod_bias */
3639 GLuint MaxTextureBufferSize
; /**< GL_ARB_texture_buffer_object */
3641 GLuint TextureBufferOffsetAlignment
; /**< GL_ARB_texture_buffer_range */
3643 GLuint MaxArrayLockSize
;
3647 GLfloat MinPointSize
, MaxPointSize
; /**< aliased */
3648 GLfloat MinPointSizeAA
, MaxPointSizeAA
; /**< antialiased */
3649 GLfloat PointSizeGranularity
;
3650 GLfloat MinLineWidth
, MaxLineWidth
; /**< aliased */
3651 GLfloat MinLineWidthAA
, MaxLineWidthAA
; /**< antialiased */
3652 GLfloat LineWidthGranularity
;
3654 GLuint MaxClipPlanes
;
3656 GLfloat MaxShininess
; /**< GL_NV_light_max_exponent */
3657 GLfloat MaxSpotExponent
; /**< GL_NV_light_max_exponent */
3659 GLuint MaxViewportWidth
, MaxViewportHeight
;
3660 GLuint MaxViewports
; /**< GL_ARB_viewport_array */
3661 GLuint ViewportSubpixelBits
; /**< GL_ARB_viewport_array */
3665 } ViewportBounds
; /**< GL_ARB_viewport_array */
3666 GLuint MaxWindowRectangles
; /**< GL_EXT_window_rectangles */
3668 struct gl_program_constants Program
[MESA_SHADER_STAGES
];
3669 GLuint MaxProgramMatrices
;
3670 GLuint MaxProgramMatrixStackDepth
;
3673 GLuint SamplesPassed
;
3676 GLuint PrimitivesGenerated
;
3677 GLuint PrimitivesWritten
;
3678 GLuint VerticesSubmitted
;
3679 GLuint PrimitivesSubmitted
;
3680 GLuint VsInvocations
;
3682 GLuint TessInvocations
;
3683 GLuint GsInvocations
;
3684 GLuint GsPrimitives
;
3685 GLuint FsInvocations
;
3686 GLuint ComputeInvocations
;
3687 GLuint ClInPrimitives
;
3688 GLuint ClOutPrimitives
;
3691 GLuint MaxDrawBuffers
; /**< GL_ARB_draw_buffers */
3693 GLuint MaxColorAttachments
; /**< GL_EXT_framebuffer_object */
3694 GLuint MaxRenderbufferSize
; /**< GL_EXT_framebuffer_object */
3695 GLuint MaxSamples
; /**< GL_ARB_framebuffer_object */
3698 * GL_ARB_framebuffer_no_attachments
3700 GLuint MaxFramebufferWidth
;
3701 GLuint MaxFramebufferHeight
;
3702 GLuint MaxFramebufferLayers
;
3703 GLuint MaxFramebufferSamples
;
3705 /** Number of varying vectors between any two shader stages. */
3709 * GL_ARB_uniform_buffer_object
3711 GLuint MaxCombinedUniformBlocks
;
3712 GLuint MaxUniformBufferBindings
;
3713 GLuint MaxUniformBlockSize
;
3714 GLuint UniformBufferOffsetAlignment
;
3718 * GL_ARB_shader_storage_buffer_object
3720 GLuint MaxCombinedShaderStorageBlocks
;
3721 GLuint MaxShaderStorageBufferBindings
;
3722 GLuint MaxShaderStorageBlockSize
;
3723 GLuint ShaderStorageBufferOffsetAlignment
;
3727 * GL_ARB_explicit_uniform_location
3729 GLuint MaxUserAssignableUniformLocations
;
3731 /** geometry shader */
3732 GLuint MaxGeometryOutputVertices
;
3733 GLuint MaxGeometryTotalOutputComponents
;
3734 GLuint MaxGeometryShaderInvocations
;
3736 GLuint GLSLVersion
; /**< Desktop GLSL version supported (ex: 120 = 1.20) */
3737 GLuint GLSLVersionCompat
; /**< Desktop compat GLSL version supported */
3740 * Changes default GLSL extension behavior from "error" to "warn". It's out
3741 * of spec, but it can make some apps work that otherwise wouldn't.
3743 GLboolean ForceGLSLExtensionsWarn
;
3746 * If non-zero, forces GLSL shaders to behave as if they began
3747 * with "#version ForceGLSLVersion".
3749 GLuint ForceGLSLVersion
;
3752 * Allow GLSL #extension directives in the middle of shaders.
3754 GLboolean AllowGLSLExtensionDirectiveMidShader
;
3757 * Allow builtins as part of constant expressions. This was not allowed
3758 * until GLSL 1.20 this allows it everywhere.
3760 GLboolean AllowGLSLBuiltinConstantExpression
;
3763 * Allow some relaxation of GLSL ES shader restrictions. This encompasses
3764 * a number of relaxations to the ES shader rules.
3766 GLboolean AllowGLSLRelaxedES
;
3769 * Allow GLSL built-in variables to be redeclared verbatim
3771 GLboolean AllowGLSLBuiltinVariableRedeclaration
;
3774 * Allow GLSL interpolation qualifier mismatch across shader stages.
3776 GLboolean AllowGLSLCrossStageInterpolationMismatch
;
3779 * Allow creating a higher compat profile (version 3.1+) for apps that
3780 * request it. Be careful when adding that driconf option because some
3781 * features are unimplemented and might not work correctly.
3783 GLboolean AllowHigherCompatVersion
;
3786 * Allow layout qualifiers on function parameters.
3788 GLboolean AllowLayoutQualifiersOnFunctionParameters
;
3791 * Force computing the absolute value for sqrt() and inversesqrt() to follow
3792 * D3D9 when apps rely on this behaviour.
3794 GLboolean ForceGLSLAbsSqrt
;
3797 * Force uninitialized variables to default to zero.
3799 GLboolean GLSLZeroInit
;
3802 * Does the driver support real 32-bit integers? (Otherwise, integers are
3803 * simulated via floats.)
3805 GLboolean NativeIntegers
;
3808 * Does VertexID count from zero or from base vertex?
3811 * If desktop GLSL 1.30 or GLSL ES 3.00 are not supported, this field is
3812 * ignored and need not be set.
3814 bool VertexID_is_zero_based
;
3817 * If the driver supports real 32-bit integers, what integer value should be
3818 * used for boolean true in uniform uploads? (Usually 1 or ~0.)
3820 GLuint UniformBooleanTrue
;
3823 * Maximum amount of time, measured in nanseconds, that the server can wait.
3825 GLuint64 MaxServerWaitTimeout
;
3827 /** GL_EXT_provoking_vertex */
3828 GLboolean QuadsFollowProvokingVertexConvention
;
3830 /** GL_ARB_viewport_array */
3831 GLenum16 LayerAndVPIndexProvokingVertex
;
3833 /** OpenGL version 3.0 */
3834 GLbitfield ContextFlags
; /**< Ex: GL_CONTEXT_FLAG_FORWARD_COMPATIBLE_BIT */
3836 /** OpenGL version 3.2 */
3837 GLbitfield ProfileMask
; /**< Mask of CONTEXT_x_PROFILE_BIT */
3839 /** OpenGL version 4.4 */
3840 GLuint MaxVertexAttribStride
;
3842 /** GL_EXT_transform_feedback */
3843 GLuint MaxTransformFeedbackBuffers
;
3844 GLuint MaxTransformFeedbackSeparateComponents
;
3845 GLuint MaxTransformFeedbackInterleavedComponents
;
3846 GLuint MaxVertexStreams
;
3848 /** GL_EXT_gpu_shader4 */
3849 GLint MinProgramTexelOffset
, MaxProgramTexelOffset
;
3851 /** GL_ARB_texture_gather */
3852 GLuint MinProgramTextureGatherOffset
;
3853 GLuint MaxProgramTextureGatherOffset
;
3854 GLuint MaxProgramTextureGatherComponents
;
3856 /* GL_ARB_robustness */
3857 GLenum16 ResetStrategy
;
3859 /* GL_KHR_robustness */
3860 GLboolean RobustAccess
;
3862 /* GL_ARB_blend_func_extended */
3863 GLuint MaxDualSourceDrawBuffers
;
3866 * Whether the implementation strips out and ignores texture borders.
3868 * Many GPU hardware implementations don't support rendering with texture
3869 * borders and mipmapped textures. (Note: not static border color, but the
3870 * old 1-pixel border around each edge). Implementations then have to do
3871 * slow fallbacks to be correct, or just ignore the border and be fast but
3872 * wrong. Setting the flag strips the border off of TexImage calls,
3873 * providing "fast but wrong" at significantly reduced driver complexity.
3875 * Texture borders are deprecated in GL 3.0.
3877 GLboolean StripTextureBorder
;
3880 * For drivers which can do a better job at eliminating unused uniforms
3881 * than the GLSL compiler.
3883 * XXX Remove these as soon as a better solution is available.
3885 GLboolean GLSLSkipStrictMaxUniformLimitCheck
;
3887 /** Whether gl_FragCoord and gl_FrontFacing are system values. */
3888 bool GLSLFragCoordIsSysVal
;
3889 bool GLSLFrontFacingIsSysVal
;
3892 * Run the minimum amount of GLSL optimizations to be able to link
3893 * shaders optimally (eliminate dead varyings and uniforms) and just do
3894 * all the necessary lowering.
3896 bool GLSLOptimizeConservatively
;
3899 * True if gl_TessLevelInner/Outer[] in the TES should be inputs
3900 * (otherwise, they're system values).
3902 bool GLSLTessLevelsAsInputs
;
3905 * Always use the GetTransformFeedbackVertexCount() driver hook, rather
3906 * than passing the transform feedback object to the drawing function.
3908 GLboolean AlwaysUseGetTransformFeedbackVertexCount
;
3910 /** GL_ARB_map_buffer_alignment */
3911 GLuint MinMapBufferAlignment
;
3914 * Disable varying packing. This is out of spec, but potentially useful
3915 * for older platforms that supports a limited number of texture
3916 * indirections--on these platforms, unpacking the varyings in the fragment
3917 * shader increases the number of texture indirections by 1, which might
3918 * make some shaders not executable at all.
3920 * Drivers that support transform feedback must set this value to GL_FALSE.
3922 GLboolean DisableVaryingPacking
;
3925 * UBOs and SSBOs can be packed tightly by the OpenGL implementation when
3926 * layout is set as shared (the default) or packed. However most Mesa drivers
3927 * just use STD140 for these layouts. This flag allows drivers to use STD430
3928 * for packed and shared layouts which allows arrays to be packed more
3931 bool UseSTD430AsDefaultPacking
;
3934 * Should meaningful names be generated for compiler temporary variables?
3936 * Generally, it is not useful to have the compiler generate "meaningful"
3937 * names for temporary variables that it creates. This can, however, be a
3938 * useful debugging aid. In Mesa debug builds or release builds when
3939 * MESA_GLSL is set at run-time, meaningful names will be generated.
3940 * Drivers can also force names to be generated by setting this field.
3941 * For example, the i965 driver may set it when INTEL_DEBUG=vs (to dump
3942 * vertex shader assembly) is set at run-time.
3944 bool GenerateTemporaryNames
;
3947 * Maximum value supported for an index in DrawElements and friends.
3949 * This must be at least (1ull<<24)-1. The default value is
3952 * \since ES 3.0 or GL_ARB_ES3_compatibility
3953 * \sa _mesa_init_constants
3955 GLuint64 MaxElementIndex
;
3958 * Disable interpretation of line continuations (lines ending with a
3959 * backslash character ('\') in GLSL source.
3961 GLboolean DisableGLSLLineContinuations
;
3963 /** GL_ARB_texture_multisample */
3964 GLint MaxColorTextureSamples
;
3965 GLint MaxDepthTextureSamples
;
3966 GLint MaxIntegerSamples
;
3968 /** GL_AMD_framebuffer_multisample_advanced */
3969 GLint MaxColorFramebufferSamples
;
3970 GLint MaxColorFramebufferStorageSamples
;
3971 GLint MaxDepthStencilFramebufferSamples
;
3973 /* An array of supported MSAA modes allowing different sample
3974 * counts per attachment type.
3977 GLint NumColorSamples
;
3978 GLint NumColorStorageSamples
;
3979 GLint NumDepthStencilSamples
;
3980 } SupportedMultisampleModes
[40];
3981 GLint NumSupportedMultisampleModes
;
3984 * GL_EXT_texture_multisample_blit_scaled implementation assumes that
3985 * samples are laid out in a rectangular grid roughly corresponding to
3986 * sample locations within a pixel. Below SampleMap{2,4,8}x variables
3987 * are used to map indices of rectangular grid to sample numbers within
3988 * a pixel. This mapping of indices to sample numbers must be initialized
3989 * by the driver for the target hardware. For example, if we have the 8X
3990 * MSAA sample number layout (sample positions) for XYZ hardware:
3992 * sample indices layout sample number layout
3993 * --------- ---------
3994 * | 0 | 1 | | a | b |
3995 * --------- ---------
3996 * | 2 | 3 | | c | d |
3997 * --------- ---------
3998 * | 4 | 5 | | e | f |
3999 * --------- ---------
4000 * | 6 | 7 | | g | h |
4001 * --------- ---------
4003 * Where a,b,c,d,e,f,g,h are integers between [0-7].
4005 * Then, initialize the SampleMap8x variable for XYZ hardware as shown
4007 * SampleMap8x = {a, b, c, d, e, f, g, h};
4009 * Follow the logic for sample counts 2-8.
4011 * For 16x the sample indices layout as a 4x4 grid as follows:
4023 uint8_t SampleMap2x
[2];
4024 uint8_t SampleMap4x
[4];
4025 uint8_t SampleMap8x
[8];
4026 uint8_t SampleMap16x
[16];
4028 /** GL_ARB_shader_atomic_counters */
4029 GLuint MaxAtomicBufferBindings
;
4030 GLuint MaxAtomicBufferSize
;
4031 GLuint MaxCombinedAtomicBuffers
;
4032 GLuint MaxCombinedAtomicCounters
;
4034 /** GL_ARB_vertex_attrib_binding */
4035 GLint MaxVertexAttribRelativeOffset
;
4036 GLint MaxVertexAttribBindings
;
4038 /* GL_ARB_shader_image_load_store */
4039 GLuint MaxImageUnits
;
4040 GLuint MaxCombinedShaderOutputResources
;
4041 GLuint MaxImageSamples
;
4042 GLuint MaxCombinedImageUniforms
;
4044 /** GL_ARB_compute_shader */
4045 GLuint MaxComputeWorkGroupCount
[3]; /* Array of x, y, z dimensions */
4046 GLuint MaxComputeWorkGroupSize
[3]; /* Array of x, y, z dimensions */
4047 GLuint MaxComputeWorkGroupInvocations
;
4048 GLuint MaxComputeSharedMemorySize
;
4050 /** GL_ARB_compute_variable_group_size */
4051 GLuint MaxComputeVariableGroupSize
[3]; /* Array of x, y, z dimensions */
4052 GLuint MaxComputeVariableGroupInvocations
;
4054 /** GL_ARB_gpu_shader5 */
4055 GLfloat MinFragmentInterpolationOffset
;
4056 GLfloat MaxFragmentInterpolationOffset
;
4058 GLboolean FakeSWMSAA
;
4060 /** GL_KHR_context_flush_control */
4061 GLenum16 ContextReleaseBehavior
;
4063 struct gl_shader_compiler_options ShaderCompilerOptions
[MESA_SHADER_STAGES
];
4065 /** GL_ARB_tessellation_shader */
4066 GLuint MaxPatchVertices
;
4067 GLuint MaxTessGenLevel
;
4068 GLuint MaxTessPatchComponents
;
4069 GLuint MaxTessControlTotalOutputComponents
;
4070 bool LowerTessLevel
; /**< Lower gl_TessLevel* from float[n] to vecn? */
4071 bool PrimitiveRestartForPatches
;
4072 bool LowerCsDerivedVariables
; /**< Lower gl_GlobalInvocationID and
4073 * gl_LocalInvocationIndex based on
4074 * other builtin variables. */
4076 /** GL_OES_primitive_bounding_box */
4077 bool NoPrimitiveBoundingBoxOutput
;
4079 /** GL_ARB_sparse_buffer */
4080 GLuint SparseBufferPageSize
;
4082 /** Used as an input for sha1 generation in the on-disk shader cache */
4083 unsigned char *dri_config_options_sha1
;
4085 /** When drivers are OK with mapped buffers during draw and other calls. */
4086 bool AllowMappedBuffersDuringExecution
;
4088 /** GL_ARB_get_program_binary */
4089 GLuint NumProgramBinaryFormats
;
4091 /** GL_NV_conservative_raster */
4092 GLuint MaxSubpixelPrecisionBiasBits
;
4094 /** GL_NV_conservative_raster_dilate */
4095 GLfloat ConservativeRasterDilateRange
[2];
4096 GLfloat ConservativeRasterDilateGranularity
;
4098 /** Is the drivers uniform storage packed or padded to 16 bytes. */
4099 bool PackedDriverUniformStorage
;
4101 /** GL_ARB_gl_spirv */
4102 struct spirv_supported_capabilities SpirVCapabilities
;
4107 * Enable flag for each OpenGL extension. Different device drivers will
4108 * enable different extensions at runtime.
4110 struct gl_extensions
4112 GLboolean dummy
; /* don't remove this! */
4113 GLboolean dummy_true
; /* Set true by _mesa_init_extensions(). */
4114 GLboolean dummy_false
; /* Set false by _mesa_init_extensions(). */
4115 GLboolean ANGLE_texture_compression_dxt
;
4116 GLboolean ARB_ES2_compatibility
;
4117 GLboolean ARB_ES3_compatibility
;
4118 GLboolean ARB_ES3_1_compatibility
;
4119 GLboolean ARB_ES3_2_compatibility
;
4120 GLboolean ARB_arrays_of_arrays
;
4121 GLboolean ARB_base_instance
;
4122 GLboolean ARB_bindless_texture
;
4123 GLboolean ARB_blend_func_extended
;
4124 GLboolean ARB_buffer_storage
;
4125 GLboolean ARB_clear_texture
;
4126 GLboolean ARB_clip_control
;
4127 GLboolean ARB_color_buffer_float
;
4128 GLboolean ARB_compatibility
;
4129 GLboolean ARB_compute_shader
;
4130 GLboolean ARB_compute_variable_group_size
;
4131 GLboolean ARB_conditional_render_inverted
;
4132 GLboolean ARB_conservative_depth
;
4133 GLboolean ARB_copy_image
;
4134 GLboolean ARB_cull_distance
;
4135 GLboolean ARB_depth_buffer_float
;
4136 GLboolean ARB_depth_clamp
;
4137 GLboolean ARB_depth_texture
;
4138 GLboolean ARB_derivative_control
;
4139 GLboolean ARB_draw_buffers_blend
;
4140 GLboolean ARB_draw_elements_base_vertex
;
4141 GLboolean ARB_draw_indirect
;
4142 GLboolean ARB_draw_instanced
;
4143 GLboolean ARB_fragment_coord_conventions
;
4144 GLboolean ARB_fragment_layer_viewport
;
4145 GLboolean ARB_fragment_program
;
4146 GLboolean ARB_fragment_program_shadow
;
4147 GLboolean ARB_fragment_shader
;
4148 GLboolean ARB_framebuffer_no_attachments
;
4149 GLboolean ARB_framebuffer_object
;
4150 GLboolean ARB_fragment_shader_interlock
;
4151 GLboolean ARB_enhanced_layouts
;
4152 GLboolean ARB_explicit_attrib_location
;
4153 GLboolean ARB_explicit_uniform_location
;
4154 GLboolean ARB_gl_spirv
;
4155 GLboolean ARB_gpu_shader5
;
4156 GLboolean ARB_gpu_shader_fp64
;
4157 GLboolean ARB_gpu_shader_int64
;
4158 GLboolean ARB_half_float_vertex
;
4159 GLboolean ARB_indirect_parameters
;
4160 GLboolean ARB_instanced_arrays
;
4161 GLboolean ARB_internalformat_query
;
4162 GLboolean ARB_internalformat_query2
;
4163 GLboolean ARB_map_buffer_range
;
4164 GLboolean ARB_occlusion_query
;
4165 GLboolean ARB_occlusion_query2
;
4166 GLboolean ARB_pipeline_statistics_query
;
4167 GLboolean ARB_point_sprite
;
4168 GLboolean ARB_polygon_offset_clamp
;
4169 GLboolean ARB_post_depth_coverage
;
4170 GLboolean ARB_query_buffer_object
;
4171 GLboolean ARB_robust_buffer_access_behavior
;
4172 GLboolean ARB_sample_locations
;
4173 GLboolean ARB_sample_shading
;
4174 GLboolean ARB_seamless_cube_map
;
4175 GLboolean ARB_shader_atomic_counter_ops
;
4176 GLboolean ARB_shader_atomic_counters
;
4177 GLboolean ARB_shader_ballot
;
4178 GLboolean ARB_shader_bit_encoding
;
4179 GLboolean ARB_shader_clock
;
4180 GLboolean ARB_shader_draw_parameters
;
4181 GLboolean ARB_shader_group_vote
;
4182 GLboolean ARB_shader_image_load_store
;
4183 GLboolean ARB_shader_image_size
;
4184 GLboolean ARB_shader_precision
;
4185 GLboolean ARB_shader_stencil_export
;
4186 GLboolean ARB_shader_storage_buffer_object
;
4187 GLboolean ARB_shader_texture_image_samples
;
4188 GLboolean ARB_shader_texture_lod
;
4189 GLboolean ARB_shader_viewport_layer_array
;
4190 GLboolean ARB_shading_language_packing
;
4191 GLboolean ARB_shading_language_420pack
;
4192 GLboolean ARB_shadow
;
4193 GLboolean ARB_sparse_buffer
;
4194 GLboolean ARB_stencil_texturing
;
4196 GLboolean ARB_tessellation_shader
;
4197 GLboolean ARB_texture_border_clamp
;
4198 GLboolean ARB_texture_buffer_object
;
4199 GLboolean ARB_texture_buffer_object_rgb32
;
4200 GLboolean ARB_texture_buffer_range
;
4201 GLboolean ARB_texture_compression_bptc
;
4202 GLboolean ARB_texture_compression_rgtc
;
4203 GLboolean ARB_texture_cube_map
;
4204 GLboolean ARB_texture_cube_map_array
;
4205 GLboolean ARB_texture_env_combine
;
4206 GLboolean ARB_texture_env_crossbar
;
4207 GLboolean ARB_texture_env_dot3
;
4208 GLboolean ARB_texture_filter_anisotropic
;
4209 GLboolean ARB_texture_float
;
4210 GLboolean ARB_texture_gather
;
4211 GLboolean ARB_texture_mirror_clamp_to_edge
;
4212 GLboolean ARB_texture_multisample
;
4213 GLboolean ARB_texture_non_power_of_two
;
4214 GLboolean ARB_texture_stencil8
;
4215 GLboolean ARB_texture_query_levels
;
4216 GLboolean ARB_texture_query_lod
;
4217 GLboolean ARB_texture_rg
;
4218 GLboolean ARB_texture_rgb10_a2ui
;
4219 GLboolean ARB_texture_view
;
4220 GLboolean ARB_timer_query
;
4221 GLboolean ARB_transform_feedback2
;
4222 GLboolean ARB_transform_feedback3
;
4223 GLboolean ARB_transform_feedback_instanced
;
4224 GLboolean ARB_transform_feedback_overflow_query
;
4225 GLboolean ARB_uniform_buffer_object
;
4226 GLboolean ARB_vertex_attrib_64bit
;
4227 GLboolean ARB_vertex_program
;
4228 GLboolean ARB_vertex_shader
;
4229 GLboolean ARB_vertex_type_10f_11f_11f_rev
;
4230 GLboolean ARB_vertex_type_2_10_10_10_rev
;
4231 GLboolean ARB_viewport_array
;
4232 GLboolean EXT_blend_color
;
4233 GLboolean EXT_blend_equation_separate
;
4234 GLboolean EXT_blend_func_separate
;
4235 GLboolean EXT_blend_minmax
;
4236 GLboolean EXT_depth_bounds_test
;
4237 GLboolean EXT_disjoint_timer_query
;
4238 GLboolean EXT_draw_buffers2
;
4239 GLboolean EXT_framebuffer_multisample
;
4240 GLboolean EXT_framebuffer_multisample_blit_scaled
;
4241 GLboolean EXT_framebuffer_sRGB
;
4242 GLboolean EXT_gpu_program_parameters
;
4243 GLboolean EXT_gpu_shader4
;
4244 GLboolean EXT_memory_object
;
4245 GLboolean EXT_memory_object_fd
;
4246 GLboolean EXT_packed_float
;
4247 GLboolean EXT_pixel_buffer_object
;
4248 GLboolean EXT_point_parameters
;
4249 GLboolean EXT_provoking_vertex
;
4250 GLboolean EXT_render_snorm
;
4251 GLboolean EXT_semaphore
;
4252 GLboolean EXT_semaphore_fd
;
4253 GLboolean EXT_shader_integer_mix
;
4254 GLboolean EXT_shader_samples_identical
;
4255 GLboolean EXT_stencil_two_side
;
4256 GLboolean EXT_texture_array
;
4257 GLboolean EXT_texture_compression_latc
;
4258 GLboolean EXT_texture_compression_s3tc
;
4259 GLboolean EXT_texture_env_dot3
;
4260 GLboolean EXT_texture_filter_anisotropic
;
4261 GLboolean EXT_texture_integer
;
4262 GLboolean EXT_texture_mirror_clamp
;
4263 GLboolean EXT_texture_shared_exponent
;
4264 GLboolean EXT_texture_snorm
;
4265 GLboolean EXT_texture_sRGB
;
4266 GLboolean EXT_texture_sRGB_R8
;
4267 GLboolean EXT_texture_sRGB_decode
;
4268 GLboolean EXT_texture_swizzle
;
4269 GLboolean EXT_texture_type_2_10_10_10_REV
;
4270 GLboolean EXT_transform_feedback
;
4271 GLboolean EXT_timer_query
;
4272 GLboolean EXT_vertex_array_bgra
;
4273 GLboolean EXT_window_rectangles
;
4274 GLboolean OES_copy_image
;
4275 GLboolean OES_primitive_bounding_box
;
4276 GLboolean OES_sample_variables
;
4277 GLboolean OES_standard_derivatives
;
4278 GLboolean OES_texture_buffer
;
4279 GLboolean OES_texture_cube_map_array
;
4280 GLboolean OES_texture_view
;
4281 GLboolean OES_viewport_array
;
4282 /* vendor extensions */
4283 GLboolean AMD_framebuffer_multisample_advanced
;
4284 GLboolean AMD_depth_clamp_separate
;
4285 GLboolean AMD_performance_monitor
;
4286 GLboolean AMD_pinned_memory
;
4287 GLboolean AMD_seamless_cubemap_per_texture
;
4288 GLboolean AMD_vertex_shader_layer
;
4289 GLboolean AMD_vertex_shader_viewport_index
;
4290 GLboolean ANDROID_extension_pack_es31a
;
4291 GLboolean APPLE_object_purgeable
;
4292 GLboolean ATI_meminfo
;
4293 GLboolean ATI_texture_compression_3dc
;
4294 GLboolean ATI_texture_mirror_once
;
4295 GLboolean ATI_texture_env_combine3
;
4296 GLboolean ATI_fragment_shader
;
4297 GLboolean GREMEDY_string_marker
;
4298 GLboolean INTEL_conservative_rasterization
;
4299 GLboolean INTEL_fragment_shader_ordering
;
4300 GLboolean INTEL_performance_query
;
4301 GLboolean INTEL_shader_atomic_float_minmax
;
4302 GLboolean KHR_blend_equation_advanced
;
4303 GLboolean KHR_blend_equation_advanced_coherent
;
4304 GLboolean KHR_robustness
;
4305 GLboolean KHR_texture_compression_astc_hdr
;
4306 GLboolean KHR_texture_compression_astc_ldr
;
4307 GLboolean KHR_texture_compression_astc_sliced_3d
;
4308 GLboolean MESA_framebuffer_flip_y
;
4309 GLboolean MESA_tile_raster_order
;
4310 GLboolean MESA_pack_invert
;
4311 GLboolean EXT_shader_framebuffer_fetch
;
4312 GLboolean EXT_shader_framebuffer_fetch_non_coherent
;
4313 GLboolean MESA_shader_integer_functions
;
4314 GLboolean MESA_ycbcr_texture
;
4315 GLboolean NV_conditional_render
;
4316 GLboolean NV_fill_rectangle
;
4317 GLboolean NV_fog_distance
;
4318 GLboolean NV_point_sprite
;
4319 GLboolean NV_primitive_restart
;
4320 GLboolean NV_shader_atomic_float
;
4321 GLboolean NV_texture_barrier
;
4322 GLboolean NV_texture_env_combine4
;
4323 GLboolean NV_texture_rectangle
;
4324 GLboolean NV_vdpau_interop
;
4325 GLboolean NV_conservative_raster
;
4326 GLboolean NV_conservative_raster_dilate
;
4327 GLboolean NV_conservative_raster_pre_snap_triangles
;
4328 GLboolean NV_conservative_raster_pre_snap
;
4329 GLboolean NVX_gpu_memory_info
;
4330 GLboolean TDFX_texture_compression_FXT1
;
4331 GLboolean OES_EGL_image
;
4332 GLboolean OES_draw_texture
;
4333 GLboolean OES_depth_texture_cube_map
;
4334 GLboolean OES_EGL_image_external
;
4335 GLboolean OES_texture_float
;
4336 GLboolean OES_texture_float_linear
;
4337 GLboolean OES_texture_half_float
;
4338 GLboolean OES_texture_half_float_linear
;
4339 GLboolean OES_compressed_ETC1_RGB8_texture
;
4340 GLboolean OES_geometry_shader
;
4341 GLboolean OES_texture_compression_astc
;
4342 GLboolean extension_sentinel
;
4343 /** The extension string */
4344 const GLubyte
*String
;
4345 /** Number of supported extensions */
4348 * The context version which extension helper functions compare against.
4349 * By default, the value is equal to ctx->Version. This changes to ~0
4350 * while meta is in progress.
4354 * Force-enabled, yet unrecognized, extensions.
4355 * See _mesa_one_time_init_extension_overrides()
4357 #define MAX_UNRECOGNIZED_EXTENSIONS 16
4358 const char *unrecognized_extensions
[MAX_UNRECOGNIZED_EXTENSIONS
];
4363 * A stack of matrices (projection, modelview, color, texture, etc).
4365 struct gl_matrix_stack
4367 GLmatrix
*Top
; /**< points into Stack */
4368 GLmatrix
*Stack
; /**< array [MaxDepth] of GLmatrix */
4369 unsigned StackSize
; /**< Number of elements in Stack */
4370 GLuint Depth
; /**< 0 <= Depth < MaxDepth */
4371 GLuint MaxDepth
; /**< size of Stack[] array */
4372 GLuint DirtyFlag
; /**< _NEW_MODELVIEW or _NEW_PROJECTION, for example */
4377 * \name Bits for image transfer operations
4378 * \sa __struct gl_contextRec::ImageTransferState.
4381 #define IMAGE_SCALE_BIAS_BIT 0x1
4382 #define IMAGE_SHIFT_OFFSET_BIT 0x2
4383 #define IMAGE_MAP_COLOR_BIT 0x4
4384 #define IMAGE_CLAMP_BIT 0x800
4387 /** Pixel Transfer ops */
4388 #define IMAGE_BITS (IMAGE_SCALE_BIAS_BIT | \
4389 IMAGE_SHIFT_OFFSET_BIT | \
4390 IMAGE_MAP_COLOR_BIT)
4394 * \name Bits to indicate what state has changed.
4397 #define _NEW_MODELVIEW (1u << 0) /**< gl_context::ModelView */
4398 #define _NEW_PROJECTION (1u << 1) /**< gl_context::Projection */
4399 #define _NEW_TEXTURE_MATRIX (1u << 2) /**< gl_context::TextureMatrix */
4400 #define _NEW_COLOR (1u << 3) /**< gl_context::Color */
4401 #define _NEW_DEPTH (1u << 4) /**< gl_context::Depth */
4402 #define _NEW_EVAL (1u << 5) /**< gl_context::Eval, EvalMap */
4403 #define _NEW_FOG (1u << 6) /**< gl_context::Fog */
4404 #define _NEW_HINT (1u << 7) /**< gl_context::Hint */
4405 #define _NEW_LIGHT (1u << 8) /**< gl_context::Light */
4406 #define _NEW_LINE (1u << 9) /**< gl_context::Line */
4407 #define _NEW_PIXEL (1u << 10) /**< gl_context::Pixel */
4408 #define _NEW_POINT (1u << 11) /**< gl_context::Point */
4409 #define _NEW_POLYGON (1u << 12) /**< gl_context::Polygon */
4410 #define _NEW_POLYGONSTIPPLE (1u << 13) /**< gl_context::PolygonStipple */
4411 #define _NEW_SCISSOR (1u << 14) /**< gl_context::Scissor */
4412 #define _NEW_STENCIL (1u << 15) /**< gl_context::Stencil */
4413 #define _NEW_TEXTURE_OBJECT (1u << 16) /**< gl_context::Texture (bindings only) */
4414 #define _NEW_TRANSFORM (1u << 17) /**< gl_context::Transform */
4415 #define _NEW_VIEWPORT (1u << 18) /**< gl_context::Viewport */
4416 #define _NEW_TEXTURE_STATE (1u << 19) /**< gl_context::Texture (states only) */
4417 #define _NEW_ARRAY (1u << 20) /**< gl_context::Array */
4418 #define _NEW_RENDERMODE (1u << 21) /**< gl_context::RenderMode, etc */
4419 #define _NEW_BUFFERS (1u << 22) /**< gl_context::Visual, DrawBuffer, */
4420 #define _NEW_CURRENT_ATTRIB (1u << 23) /**< gl_context::Current */
4421 #define _NEW_MULTISAMPLE (1u << 24) /**< gl_context::Multisample */
4422 #define _NEW_TRACK_MATRIX (1u << 25) /**< gl_context::VertexProgram */
4423 #define _NEW_PROGRAM (1u << 26) /**< New program/shader state */
4424 #define _NEW_PROGRAM_CONSTANTS (1u << 27)
4426 #define _NEW_FRAG_CLAMP (1u << 29)
4427 /* gap, re-use for core Mesa state only; use ctx->DriverFlags otherwise */
4428 #define _NEW_VARYING_VP_INPUTS (1u << 31) /**< gl_context::varying_vp_inputs */
4434 * Composite state flags
4437 #define _NEW_TEXTURE (_NEW_TEXTURE_OBJECT | _NEW_TEXTURE_STATE)
4439 #define _MESA_NEW_NEED_EYE_COORDS (_NEW_LIGHT | \
4440 _NEW_TEXTURE_STATE | \
4445 #define _MESA_NEW_SEPARATE_SPECULAR (_NEW_LIGHT | \
4455 /* This has to be included here. */
4459 /** Opaque declaration of display list payload data type */
4460 union gl_dlist_node
;
4464 * Per-display list information.
4466 struct gl_display_list
4469 GLbitfield Flags
; /**< DLIST_x flags */
4470 GLchar
*Label
; /**< GL_KHR_debug */
4471 /** The dlist commands are in a linked list of nodes */
4472 union gl_dlist_node
*Head
;
4477 * State used during display list compilation and execution.
4479 struct gl_dlist_state
4481 struct gl_display_list
*CurrentList
; /**< List currently being compiled */
4482 union gl_dlist_node
*CurrentBlock
; /**< Pointer to current block of nodes */
4483 GLuint CurrentPos
; /**< Index into current block of nodes */
4484 GLuint CallDepth
; /**< Current recursion calling depth */
4486 GLvertexformat ListVtxfmt
;
4488 GLubyte ActiveAttribSize
[VERT_ATTRIB_MAX
];
4489 GLfloat CurrentAttrib
[VERT_ATTRIB_MAX
][8];
4491 GLubyte ActiveMaterialSize
[MAT_ATTRIB_MAX
];
4492 GLfloat CurrentMaterial
[MAT_ATTRIB_MAX
][4];
4495 /* State known to have been set by the currently-compiling display
4496 * list. Used to eliminate some redundant state changes.
4498 GLenum16 ShadeModel
;
4503 * Driver-specific state flags.
4505 * These are or'd with gl_context::NewDriverState to notify a driver about
4506 * a state change. The driver sets the flags at context creation and
4507 * the meaning of the bits set is opaque to core Mesa.
4509 struct gl_driver_flags
4511 /** gl_context::Array::_DrawArrays (vertex array state) */
4514 /** gl_context::TransformFeedback::CurrentObject */
4515 uint64_t NewTransformFeedback
;
4517 /** gl_context::TransformFeedback::CurrentObject::shader_program */
4518 uint64_t NewTransformFeedbackProg
;
4520 /** gl_context::RasterDiscard */
4521 uint64_t NewRasterizerDiscard
;
4523 /** gl_context::TileRasterOrder* */
4524 uint64_t NewTileRasterOrder
;
4527 * gl_context::UniformBufferBindings
4528 * gl_shader_program::UniformBlocks
4530 uint64_t NewUniformBuffer
;
4533 * gl_context::ShaderStorageBufferBindings
4534 * gl_shader_program::ShaderStorageBlocks
4536 uint64_t NewShaderStorageBuffer
;
4538 uint64_t NewTextureBuffer
;
4541 * gl_context::AtomicBufferBindings
4543 uint64_t NewAtomicBuffer
;
4546 * gl_context::ImageUnits
4548 uint64_t NewImageUnits
;
4551 * gl_context::TessCtrlProgram::patch_default_*
4553 uint64_t NewDefaultTessLevels
;
4556 * gl_context::IntelConservativeRasterization
4558 uint64_t NewIntelConservativeRasterization
;
4561 * gl_context::NvConservativeRasterization
4563 uint64_t NewNvConservativeRasterization
;
4566 * gl_context::ConservativeRasterMode/ConservativeRasterDilate
4567 * gl_context::SubpixelPrecisionBias
4569 uint64_t NewNvConservativeRasterizationParams
;
4572 * gl_context::Scissor::WindowRects
4574 uint64_t NewWindowRectangles
;
4576 /** gl_context::Color::sRGBEnabled */
4577 uint64_t NewFramebufferSRGB
;
4579 /** gl_context::Scissor::EnableFlags */
4580 uint64_t NewScissorTest
;
4582 /** gl_context::Scissor::ScissorArray */
4583 uint64_t NewScissorRect
;
4585 /** gl_context::Color::Alpha* */
4586 uint64_t NewAlphaTest
;
4588 /** gl_context::Color::Blend/Dither */
4591 /** gl_context::Color::BlendColor */
4592 uint64_t NewBlendColor
;
4594 /** gl_context::Color::Color/Index */
4595 uint64_t NewColorMask
;
4597 /** gl_context::Depth */
4600 /** gl_context::Color::LogicOp/ColorLogicOp/IndexLogicOp */
4601 uint64_t NewLogicOp
;
4603 /** gl_context::Multisample::Enabled */
4604 uint64_t NewMultisampleEnable
;
4606 /** gl_context::Multisample::SampleAlphaTo* */
4607 uint64_t NewSampleAlphaToXEnable
;
4609 /** gl_context::Multisample::SampleCoverage/SampleMaskValue */
4610 uint64_t NewSampleMask
;
4612 /** gl_context::Multisample::(Min)SampleShading */
4613 uint64_t NewSampleShading
;
4615 /** gl_context::Stencil */
4616 uint64_t NewStencil
;
4618 /** gl_context::Transform::ClipOrigin/ClipDepthMode */
4619 uint64_t NewClipControl
;
4621 /** gl_context::Transform::EyeUserPlane */
4622 uint64_t NewClipPlane
;
4624 /** gl_context::Transform::ClipPlanesEnabled */
4625 uint64_t NewClipPlaneEnable
;
4627 /** gl_context::Transform::DepthClamp */
4628 uint64_t NewDepthClamp
;
4630 /** gl_context::Line */
4631 uint64_t NewLineState
;
4633 /** gl_context::Polygon */
4634 uint64_t NewPolygonState
;
4636 /** gl_context::PolygonStipple */
4637 uint64_t NewPolygonStipple
;
4639 /** gl_context::ViewportArray */
4640 uint64_t NewViewport
;
4642 /** Shader constants (uniforms, program parameters, state constants) */
4643 uint64_t NewShaderConstants
[MESA_SHADER_STAGES
];
4645 /** Programmable sample location state for gl_context::DrawBuffer */
4646 uint64_t NewSampleLocations
;
4649 struct gl_buffer_binding
4651 struct gl_buffer_object
*BufferObject
;
4652 /** Start of uniform block data in the buffer */
4654 /** Size of data allowed to be referenced from the buffer (in bytes) */
4657 * glBindBufferBase() indicates that the Size should be ignored and only
4658 * limited by the current size of the BufferObject.
4660 GLboolean AutomaticSize
;
4664 * ARB_shader_image_load_store image unit.
4666 struct gl_image_unit
4669 * Texture object bound to this unit.
4671 struct gl_texture_object
*TexObj
;
4674 * Level of the texture object bound to this unit.
4679 * \c GL_TRUE if the whole level is bound as an array of layers, \c
4680 * GL_FALSE if only some specific layer of the texture is bound.
4686 * Layer of the texture object bound to this unit as specified by the
4692 * Layer of the texture object bound to this unit, or zero if
4698 * Access allowed to this texture image. Either \c GL_READ_ONLY,
4699 * \c GL_WRITE_ONLY or \c GL_READ_WRITE.
4704 * GL internal format that determines the interpretation of the
4705 * image memory when shader image operations are performed through
4711 * Mesa format corresponding to \c Format.
4713 mesa_format _ActualFormat
:16;
4717 * Shader subroutines storage
4719 struct gl_subroutine_index_binding
4725 struct gl_texture_handle_object
4727 struct gl_texture_object
*texObj
;
4728 struct gl_sampler_object
*sampObj
;
4732 struct gl_image_handle_object
4734 struct gl_image_unit imgObj
;
4738 struct gl_memory_object
4740 GLuint Name
; /**< hash table ID/name */
4741 GLboolean Immutable
; /**< denotes mutability state of parameters */
4742 GLboolean Dedicated
; /**< import memory from a dedicated allocation */
4745 struct gl_semaphore_object
4747 GLuint Name
; /**< hash table ID/name */
4751 * Mesa rendering context.
4753 * This is the central context data structure for Mesa. Almost all
4754 * OpenGL state is contained in this structure.
4755 * Think of this as a base class from which device drivers will derive
4760 /** State possibly shared with other contexts in the address space */
4761 struct gl_shared_state
*Shared
;
4763 /** \name API function pointer tables */
4768 * The current dispatch table for non-displaylist-saving execution, either
4769 * BeginEnd or OutsideBeginEnd
4771 struct _glapi_table
*Exec
;
4773 * The normal dispatch table for non-displaylist-saving, non-begin/end
4775 struct _glapi_table
*OutsideBeginEnd
;
4776 /** The dispatch table used between glNewList() and glEndList() */
4777 struct _glapi_table
*Save
;
4779 * The dispatch table used between glBegin() and glEnd() (outside of a
4780 * display list). Only valid functions between those two are set, which is
4781 * mostly just the set in a GLvertexformat struct.
4783 struct _glapi_table
*BeginEnd
;
4785 * Dispatch table for when a graphics reset has happened.
4787 struct _glapi_table
*ContextLost
;
4789 * Dispatch table used to marshal API calls from the client program to a
4790 * separate server thread. NULL if API calls are not being marshalled to
4793 struct _glapi_table
*MarshalExec
;
4795 * Dispatch table currently in use for fielding API calls from the client
4796 * program. If API calls are being marshalled to another thread, this ==
4797 * MarshalExec. Otherwise it == CurrentServerDispatch.
4799 struct _glapi_table
*CurrentClientDispatch
;
4802 * Dispatch table currently in use for performing API calls. == Save or
4805 struct _glapi_table
*CurrentServerDispatch
;
4809 struct glthread_state
*GLThread
;
4811 struct gl_config Visual
;
4812 struct gl_framebuffer
*DrawBuffer
; /**< buffer for writing */
4813 struct gl_framebuffer
*ReadBuffer
; /**< buffer for reading */
4814 struct gl_framebuffer
*WinSysDrawBuffer
; /**< set with MakeCurrent */
4815 struct gl_framebuffer
*WinSysReadBuffer
; /**< set with MakeCurrent */
4818 * Device driver function pointer table
4820 struct dd_function_table Driver
;
4822 /** Core/Driver constants */
4823 struct gl_constants Const
;
4825 /** \name The various 4x4 matrix stacks */
4827 struct gl_matrix_stack ModelviewMatrixStack
;
4828 struct gl_matrix_stack ProjectionMatrixStack
;
4829 struct gl_matrix_stack TextureMatrixStack
[MAX_TEXTURE_UNITS
];
4830 struct gl_matrix_stack ProgramMatrixStack
[MAX_PROGRAM_MATRICES
];
4831 struct gl_matrix_stack
*CurrentStack
; /**< Points to one of the above stacks */
4834 /** Combined modelview and projection matrix */
4835 GLmatrix _ModelProjectMatrix
;
4837 /** \name Display lists */
4838 struct gl_dlist_state ListState
;
4840 GLboolean ExecuteFlag
; /**< Execute GL commands? */
4841 GLboolean CompileFlag
; /**< Compile GL commands into display list? */
4843 /** Extension information */
4844 struct gl_extensions Extensions
;
4846 /** GL version integer, for example 31 for GL 3.1, or 20 for GLES 2.0. */
4848 char *VersionString
;
4850 /** \name State attribute stack (for glPush/PopAttrib) */
4852 GLuint AttribStackDepth
;
4853 struct gl_attrib_node
*AttribStack
[MAX_ATTRIB_STACK_DEPTH
];
4856 /** \name Renderer attribute groups
4858 * We define a struct for each attribute group to make pushing and popping
4859 * attributes easy. Also it's a good organization.
4862 struct gl_accum_attrib Accum
; /**< Accum buffer attributes */
4863 struct gl_colorbuffer_attrib Color
; /**< Color buffer attributes */
4864 struct gl_current_attrib Current
; /**< Current attributes */
4865 struct gl_depthbuffer_attrib Depth
; /**< Depth buffer attributes */
4866 struct gl_eval_attrib Eval
; /**< Eval attributes */
4867 struct gl_fog_attrib Fog
; /**< Fog attributes */
4868 struct gl_hint_attrib Hint
; /**< Hint attributes */
4869 struct gl_light_attrib Light
; /**< Light attributes */
4870 struct gl_line_attrib Line
; /**< Line attributes */
4871 struct gl_list_attrib List
; /**< List attributes */
4872 struct gl_multisample_attrib Multisample
;
4873 struct gl_pixel_attrib Pixel
; /**< Pixel attributes */
4874 struct gl_point_attrib Point
; /**< Point attributes */
4875 struct gl_polygon_attrib Polygon
; /**< Polygon attributes */
4876 GLuint PolygonStipple
[32]; /**< Polygon stipple */
4877 struct gl_scissor_attrib Scissor
; /**< Scissor attributes */
4878 struct gl_stencil_attrib Stencil
; /**< Stencil buffer attributes */
4879 struct gl_texture_attrib Texture
; /**< Texture attributes */
4880 struct gl_transform_attrib Transform
; /**< Transformation attributes */
4881 struct gl_viewport_attrib ViewportArray
[MAX_VIEWPORTS
]; /**< Viewport attributes */
4882 GLuint SubpixelPrecisionBias
[2]; /**< Viewport attributes */
4885 /** \name Client attribute stack */
4887 GLuint ClientAttribStackDepth
;
4888 struct gl_attrib_node
*ClientAttribStack
[MAX_CLIENT_ATTRIB_STACK_DEPTH
];
4891 /** \name Client attribute groups */
4893 struct gl_array_attrib Array
; /**< Vertex arrays */
4894 struct gl_pixelstore_attrib Pack
; /**< Pixel packing */
4895 struct gl_pixelstore_attrib Unpack
; /**< Pixel unpacking */
4896 struct gl_pixelstore_attrib DefaultPacking
; /**< Default params */
4899 /** \name Other assorted state (not pushed/popped on attribute stack) */
4901 struct gl_pixelmaps PixelMaps
;
4903 struct gl_evaluators EvalMap
; /**< All evaluators */
4904 struct gl_feedback Feedback
; /**< Feedback */
4905 struct gl_selection Select
; /**< Selection */
4907 struct gl_program_state Program
; /**< general program state */
4908 struct gl_vertex_program_state VertexProgram
;
4909 struct gl_fragment_program_state FragmentProgram
;
4910 struct gl_geometry_program_state GeometryProgram
;
4911 struct gl_compute_program_state ComputeProgram
;
4912 struct gl_tess_ctrl_program_state TessCtrlProgram
;
4913 struct gl_tess_eval_program_state TessEvalProgram
;
4914 struct gl_ati_fragment_shader_state ATIFragmentShader
;
4916 struct gl_pipeline_shader_state Pipeline
; /**< GLSL pipeline shader object state */
4917 struct gl_pipeline_object Shader
; /**< GLSL shader object state */
4920 * Current active shader pipeline state
4922 * Almost all internal users want ::_Shader instead of ::Shader. The
4923 * exceptions are bits of legacy GLSL API that do not know about separate
4926 * If a program is active via \c glUseProgram, this will point to
4929 * If a program pipeline is active via \c glBindProgramPipeline, this will
4930 * point to \c ::Pipeline.Current.
4932 * If neither a program nor a program pipeline is active, this will point to
4933 * \c ::Pipeline.Default. This ensures that \c ::_Shader will never be
4936 struct gl_pipeline_object
*_Shader
;
4938 struct gl_query_state Query
; /**< occlusion, timer queries */
4940 struct gl_transform_feedback_state TransformFeedback
;
4942 struct gl_perf_monitor_state PerfMonitor
;
4943 struct gl_perf_query_state PerfQuery
;
4945 struct gl_buffer_object
*DrawIndirectBuffer
; /** < GL_ARB_draw_indirect */
4946 struct gl_buffer_object
*ParameterBuffer
; /** < GL_ARB_indirect_parameters */
4947 struct gl_buffer_object
*DispatchIndirectBuffer
; /** < GL_ARB_compute_shader */
4949 struct gl_buffer_object
*CopyReadBuffer
; /**< GL_ARB_copy_buffer */
4950 struct gl_buffer_object
*CopyWriteBuffer
; /**< GL_ARB_copy_buffer */
4952 struct gl_buffer_object
*QueryBuffer
; /**< GL_ARB_query_buffer_object */
4955 * Current GL_ARB_uniform_buffer_object binding referenced by
4956 * GL_UNIFORM_BUFFER target for glBufferData, glMapBuffer, etc.
4958 struct gl_buffer_object
*UniformBuffer
;
4961 * Current GL_ARB_shader_storage_buffer_object binding referenced by
4962 * GL_SHADER_STORAGE_BUFFER target for glBufferData, glMapBuffer, etc.
4964 struct gl_buffer_object
*ShaderStorageBuffer
;
4967 * Array of uniform buffers for GL_ARB_uniform_buffer_object and GL 3.1.
4968 * This is set up using glBindBufferRange() or glBindBufferBase(). They are
4969 * associated with uniform blocks by glUniformBlockBinding()'s state in the
4972 struct gl_buffer_binding
4973 UniformBufferBindings
[MAX_COMBINED_UNIFORM_BUFFERS
];
4976 * Array of shader storage buffers for ARB_shader_storage_buffer_object
4977 * and GL 4.3. This is set up using glBindBufferRange() or
4978 * glBindBufferBase(). They are associated with shader storage blocks by
4979 * glShaderStorageBlockBinding()'s state in the shader program.
4981 struct gl_buffer_binding
4982 ShaderStorageBufferBindings
[MAX_COMBINED_SHADER_STORAGE_BUFFERS
];
4985 * Object currently associated with the GL_ATOMIC_COUNTER_BUFFER
4988 struct gl_buffer_object
*AtomicBuffer
;
4991 * Object currently associated w/ the GL_EXTERNAL_VIRTUAL_MEMORY_BUFFER_AMD
4994 struct gl_buffer_object
*ExternalVirtualMemoryBuffer
;
4997 * Array of atomic counter buffer binding points.
4999 struct gl_buffer_binding
5000 AtomicBufferBindings
[MAX_COMBINED_ATOMIC_BUFFERS
];
5003 * Array of image units for ARB_shader_image_load_store.
5005 struct gl_image_unit ImageUnits
[MAX_IMAGE_UNITS
];
5007 struct gl_subroutine_index_binding SubroutineIndex
[MESA_SHADER_STAGES
];
5010 struct gl_meta_state
*Meta
; /**< for "meta" operations */
5012 /* GL_EXT_framebuffer_object */
5013 struct gl_renderbuffer
*CurrentRenderbuffer
;
5015 GLenum16 ErrorValue
; /**< Last error code */
5018 * Recognize and silence repeated error debug messages in buggy apps.
5020 const char *ErrorDebugFmtString
;
5021 GLuint ErrorDebugCount
;
5023 /* GL_ARB_debug_output/GL_KHR_debug */
5024 simple_mtx_t DebugMutex
;
5025 struct gl_debug_state
*Debug
;
5027 GLenum16 RenderMode
; /**< either GL_RENDER, GL_SELECT, GL_FEEDBACK */
5028 GLbitfield NewState
; /**< bitwise-or of _NEW_* flags */
5029 uint64_t NewDriverState
; /**< bitwise-or of flags from DriverFlags */
5031 struct gl_driver_flags DriverFlags
;
5033 GLboolean ViewportInitialized
; /**< has viewport size been initialized? */
5035 GLbitfield varying_vp_inputs
; /**< mask of VERT_BIT_* flags */
5037 /** \name Derived state */
5038 GLbitfield _ImageTransferState
;/**< bitwise-or of IMAGE_*_BIT flags */
5039 GLfloat _EyeZDir
[3];
5040 GLfloat _ModelViewInvScale
; /* may be for model- or eyespace lighting */
5041 GLfloat _ModelViewInvScaleEyespace
; /* always factor defined in spec */
5042 GLboolean _NeedEyeCoords
;
5043 GLboolean _ForceEyeCoords
;
5045 GLuint TextureStateTimestamp
; /**< detect changes to shared state */
5047 struct gl_list_extensions
*ListExt
; /**< driver dlist extensions */
5049 /** \name For debugging/development only */
5051 GLboolean FirstTimeCurrent
;
5055 * False if this context was created without a config. This is needed
5056 * because the initial state of glDrawBuffers depends on this
5058 GLboolean HasConfig
;
5060 GLboolean TextureFormatSupported
[MESA_FORMAT_COUNT
];
5062 GLboolean RasterDiscard
; /**< GL_RASTERIZER_DISCARD */
5063 GLboolean IntelConservativeRasterization
; /**< GL_CONSERVATIVE_RASTERIZATION_INTEL */
5064 GLboolean ConservativeRasterization
; /**< GL_CONSERVATIVE_RASTERIZATION_NV */
5065 GLfloat ConservativeRasterDilate
;
5066 GLenum16 ConservativeRasterMode
;
5068 /** Does glVertexAttrib(0) alias glVertex()? */
5069 bool _AttribZeroAliasesVertex
;
5072 * When set, TileRasterOrderIncreasingX/Y control the order that a tiled
5073 * renderer's tiles should be excecuted, to meet the requirements of
5074 * GL_MESA_tile_raster_order.
5076 GLboolean TileRasterOrderFixed
;
5077 GLboolean TileRasterOrderIncreasingX
;
5078 GLboolean TileRasterOrderIncreasingY
;
5081 * \name Hooks for module contexts.
5083 * These will eventually live in the driver or elsewhere.
5086 void *swrast_context
;
5087 void *swsetup_context
;
5088 void *swtnl_context
;
5089 struct vbo_context
*vbo_context
;
5090 struct st_context
*st
;
5095 * \name NV_vdpau_interop
5098 const void *vdpDevice
;
5099 const void *vdpGetProcAddress
;
5100 struct set
*vdpSurfaces
;
5104 * Has this context observed a GPU reset in any context in the share group?
5106 * Once this field becomes true, it is never reset to false.
5108 GLboolean ShareGroupReset
;
5111 * \name OES_primitive_bounding_box
5113 * Stores the arguments to glPrimitiveBoundingBox
5115 GLfloat PrimitiveBoundingBox
[8];
5117 struct disk_cache
*Cache
;
5120 * \name GL_ARB_bindless_texture
5123 struct hash_table_u64
*ResidentTextureHandles
;
5124 struct hash_table_u64
*ResidentImageHandles
;
5129 * Information about memory usage. All sizes are in kilobytes.
5131 struct gl_memory_info
5133 unsigned total_device_memory
; /**< size of device memory, e.g. VRAM */
5134 unsigned avail_device_memory
; /**< free device memory at the moment */
5135 unsigned total_staging_memory
; /**< size of staging memory, e.g. GART */
5136 unsigned avail_staging_memory
; /**< free staging memory at the moment */
5137 unsigned device_memory_evicted
; /**< size of memory evicted (monotonic counter) */
5138 unsigned nr_device_memory_evictions
; /**< # of evictions (monotonic counter) */
5142 extern int MESA_VERBOSE
;
5143 extern int MESA_DEBUG_FLAGS
;
5145 # define MESA_VERBOSE 0
5146 # define MESA_DEBUG_FLAGS 0
5150 /** The MESA_VERBOSE var is a bitmask of these flags */
5153 VERBOSE_VARRAY
= 0x0001,
5154 VERBOSE_TEXTURE
= 0x0002,
5155 VERBOSE_MATERIAL
= 0x0004,
5156 VERBOSE_PIPELINE
= 0x0008,
5157 VERBOSE_DRIVER
= 0x0010,
5158 VERBOSE_STATE
= 0x0020,
5159 VERBOSE_API
= 0x0040,
5160 VERBOSE_DISPLAY_LIST
= 0x0100,
5161 VERBOSE_LIGHTING
= 0x0200,
5162 VERBOSE_PRIMS
= 0x0400,
5163 VERBOSE_VERTS
= 0x0800,
5164 VERBOSE_DISASSEM
= 0x1000,
5165 VERBOSE_DRAW
= 0x2000,
5166 VERBOSE_SWAPBUFFERS
= 0x4000
5170 /** The MESA_DEBUG_FLAGS var is a bitmask of these flags */
5173 DEBUG_SILENT
= (1 << 0),
5174 DEBUG_ALWAYS_FLUSH
= (1 << 1),
5175 DEBUG_INCOMPLETE_TEXTURE
= (1 << 2),
5176 DEBUG_INCOMPLETE_FBO
= (1 << 3),
5177 DEBUG_CONTEXT
= (1 << 4)
5184 #endif /* MTYPES_H */