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 GLboolean Enabled
; /**< Whether the array is enabled */
1426 GLubyte Size
; /**< Components per element (1,2,3,4) */
1427 unsigned Normalized
:1; /**< Fixed-point values are normalized when converted to floats */
1428 unsigned Integer
:1; /**< Fixed-point values are not converted to floats */
1429 unsigned Doubles
:1; /**< double precision values are not converted to floats */
1430 unsigned _ElementSize
:8; /**< Size of each element in bytes */
1431 /** Index into gl_vertex_array_object::BufferBinding[] array */
1432 unsigned BufferBindingIndex
:6;
1435 * Derived effective buffer binding index
1437 * Index into the gl_vertex_buffer_binding array of the vao.
1438 * Similar to BufferBindingIndex, but with the mapping of the
1439 * position/generic0 attributes applied and with identical
1440 * gl_vertex_buffer_binding entries collapsed to a single
1441 * entry within the vao.
1443 * The value is valid past calling _mesa_update_vao_derived_arrays.
1444 * Note that _mesa_update_vao_derived_arrays is called when binding
1445 * the VAO to Array._DrawVAO.
1447 unsigned _EffBufferBindingIndex
:6;
1449 * Derived effective relative offset.
1451 * Relative offset to the effective buffers offset in
1452 * gl_vertex_buffer_binding::_EffOffset.
1454 * The value is valid past calling _mesa_update_vao_derived_arrays.
1455 * Note that _mesa_update_vao_derived_arrays is called when binding
1456 * the VAO to Array._DrawVAO.
1458 GLushort _EffRelativeOffset
;
1463 * This describes the buffer object used for a vertex array (or
1464 * multiple vertex arrays). If BufferObj points to the default/null
1465 * buffer object, then the vertex array lives in user memory and not a VBO.
1467 struct gl_vertex_buffer_binding
1469 GLintptr Offset
; /**< User-specified offset */
1470 GLsizei Stride
; /**< User-specified stride */
1471 GLuint InstanceDivisor
; /**< GL_ARB_instanced_arrays */
1472 struct gl_buffer_object
*BufferObj
; /**< GL_ARB_vertex_buffer_object */
1473 GLbitfield _BoundArrays
; /**< Arrays bound to this binding point */
1476 * Derived effective bound arrays.
1478 * The effective binding handles enabled arrays past the
1479 * position/generic0 attribute mapping and reduces the refered
1480 * gl_vertex_buffer_binding entries to a unique subset.
1482 * The value is valid past calling _mesa_update_vao_derived_arrays.
1483 * Note that _mesa_update_vao_derived_arrays is called when binding
1484 * the VAO to Array._DrawVAO.
1486 GLbitfield _EffBoundArrays
;
1490 * The absolute offset to that we can collapse some attributes
1491 * to this unique effective binding.
1492 * For user space array bindings this contains the smallest pointer value
1493 * in the bound and interleaved arrays.
1494 * For VBO bindings this contains an offset that lets the attributes
1495 * _EffRelativeOffset stay positive and in bounds with
1496 * Const.MaxVertexAttribRelativeOffset
1498 * The value is valid past calling _mesa_update_vao_derived_arrays.
1499 * Note that _mesa_update_vao_derived_arrays is called when binding
1500 * the VAO to Array._DrawVAO.
1502 GLintptr _EffOffset
;
1507 * A representation of "Vertex Array Objects" (VAOs) from OpenGL 3.1+ /
1508 * the GL_ARB_vertex_array_object extension.
1510 struct gl_vertex_array_object
1512 /** Name of the VAO as received from glGenVertexArray. */
1517 GLchar
*Label
; /**< GL_KHR_debug */
1520 * Has this array object been bound?
1522 GLboolean EverBound
;
1525 * Marked to true if the object is shared between contexts and immutable.
1526 * Then reference counting is done using atomics and thread safe.
1527 * Is used for dlist VAOs.
1529 bool SharedAndImmutable
;
1531 /** Vertex attribute arrays */
1532 struct gl_array_attributes VertexAttrib
[VERT_ATTRIB_MAX
];
1534 /** Vertex buffer bindings */
1535 struct gl_vertex_buffer_binding BufferBinding
[VERT_ATTRIB_MAX
];
1537 /** Mask indicating which vertex arrays have vertex buffer associated. */
1538 GLbitfield VertexAttribBufferMask
;
1540 /** Mask of VERT_BIT_* values indicating which arrays are enabled */
1541 GLbitfield _Enabled
;
1544 * Mask of VERT_BIT_* enabled arrays past position/generic0 mapping
1546 * The value is valid past calling _mesa_update_vao_derived_arrays.
1547 * Note that _mesa_update_vao_derived_arrays is called when binding
1548 * the VAO to Array._DrawVAO.
1550 GLbitfield _EffEnabledVBO
;
1552 /** Denotes the way the position/generic0 attribute is mapped */
1553 gl_attribute_map_mode _AttributeMapMode
;
1555 /** Mask of VERT_BIT_* values indicating changed/dirty arrays */
1556 GLbitfield NewArrays
;
1558 /** The index buffer (also known as the element array buffer in OpenGL). */
1559 struct gl_buffer_object
*IndexBufferObj
;
1564 * Vertex array state
1566 struct gl_array_attrib
1568 /** Currently bound array object. */
1569 struct gl_vertex_array_object
*VAO
;
1571 /** The default vertex array object */
1572 struct gl_vertex_array_object
*DefaultVAO
;
1574 /** The last VAO accessed by a DSA function */
1575 struct gl_vertex_array_object
*LastLookedUpVAO
;
1577 /** Array objects (GL_ARB_vertex_array_object) */
1578 struct _mesa_HashTable
*Objects
;
1580 GLint ActiveTexture
; /**< Client Active Texture */
1581 GLuint LockFirst
; /**< GL_EXT_compiled_vertex_array */
1582 GLuint LockCount
; /**< GL_EXT_compiled_vertex_array */
1585 * \name Primitive restart controls
1587 * Primitive restart is enabled if either \c PrimitiveRestart or
1588 * \c PrimitiveRestartFixedIndex is set.
1591 GLboolean PrimitiveRestart
;
1592 GLboolean PrimitiveRestartFixedIndex
;
1593 GLboolean _PrimitiveRestart
;
1594 GLuint RestartIndex
;
1597 /* GL_ARB_vertex_buffer_object */
1598 struct gl_buffer_object
*ArrayBufferObj
;
1601 * Vertex array object that is used with the currently active draw command.
1602 * The _DrawVAO is either set to the currently bound VAO for array type
1603 * draws or to internal VAO's set up by the vbo module to execute immediate
1604 * mode or display list draws.
1606 struct gl_vertex_array_object
*_DrawVAO
;
1608 * The VERT_BIT_* bits effectively enabled from the current _DrawVAO.
1609 * This is always a subset of _mesa_get_vao_vp_inputs(_DrawVAO)
1610 * but may omit those arrays that shall not be referenced by the current
1611 * gl_vertex_program_state::_VPMode. For example the generic attributes are
1612 * maked out form the _DrawVAO's enabled arrays when a fixed function
1613 * array draw is executed.
1615 GLbitfield _DrawVAOEnabledAttribs
;
1617 * Initially or if the VAO referenced by _DrawVAO is deleted the _DrawVAO
1618 * pointer is set to the _EmptyVAO which is just an empty VAO all the time.
1620 struct gl_vertex_array_object
*_EmptyVAO
;
1622 /** Legal array datatypes and the API for which they have been computed */
1623 GLbitfield LegalTypesMask
;
1624 gl_api LegalTypesMaskAPI
;
1629 * Feedback buffer state
1634 GLbitfield _Mask
; /**< FB_* bits */
1642 * Selection buffer state
1646 GLuint
*Buffer
; /**< selection buffer */
1647 GLuint BufferSize
; /**< size of the selection buffer */
1648 GLuint BufferCount
; /**< number of values in the selection buffer */
1649 GLuint Hits
; /**< number of records in the selection buffer */
1650 GLuint NameStackDepth
; /**< name stack depth */
1651 GLuint NameStack
[MAX_NAME_STACK_DEPTH
]; /**< name stack */
1652 GLboolean HitFlag
; /**< hit flag */
1653 GLfloat HitMinZ
; /**< minimum hit depth */
1654 GLfloat HitMaxZ
; /**< maximum hit depth */
1659 * 1-D Evaluator control points
1663 GLuint Order
; /**< Number of control points */
1664 GLfloat u1
, u2
, du
; /**< u1, u2, 1.0/(u2-u1) */
1665 GLfloat
*Points
; /**< Points to contiguous control points */
1670 * 2-D Evaluator control points
1674 GLuint Uorder
; /**< Number of control points in U dimension */
1675 GLuint Vorder
; /**< Number of control points in V dimension */
1678 GLfloat
*Points
; /**< Points to contiguous control points */
1683 * All evaluator control point state
1685 struct gl_evaluators
1691 struct gl_1d_map Map1Vertex3
;
1692 struct gl_1d_map Map1Vertex4
;
1693 struct gl_1d_map Map1Index
;
1694 struct gl_1d_map Map1Color4
;
1695 struct gl_1d_map Map1Normal
;
1696 struct gl_1d_map Map1Texture1
;
1697 struct gl_1d_map Map1Texture2
;
1698 struct gl_1d_map Map1Texture3
;
1699 struct gl_1d_map Map1Texture4
;
1706 struct gl_2d_map Map2Vertex3
;
1707 struct gl_2d_map Map2Vertex4
;
1708 struct gl_2d_map Map2Index
;
1709 struct gl_2d_map Map2Color4
;
1710 struct gl_2d_map Map2Normal
;
1711 struct gl_2d_map Map2Texture1
;
1712 struct gl_2d_map Map2Texture2
;
1713 struct gl_2d_map Map2Texture3
;
1714 struct gl_2d_map Map2Texture4
;
1719 struct gl_transform_feedback_varying_info
1730 * Per-output info vertex shaders for transform feedback.
1732 struct gl_transform_feedback_output
1734 uint32_t OutputRegister
;
1735 uint32_t OutputBuffer
;
1736 uint32_t NumComponents
;
1739 /** offset (in DWORDs) of this output within the interleaved structure */
1743 * Offset into the output register of the data to output. For example,
1744 * if NumComponents is 2 and ComponentOffset is 1, then the data to
1745 * offset is in the y and z components of the output register.
1747 uint32_t ComponentOffset
;
1751 struct gl_transform_feedback_buffer
1755 uint32_t NumVaryings
;
1758 * Total number of components stored in each buffer. This may be used by
1759 * hardware back-ends to determine the correct stride when interleaving
1760 * multiple transform feedback outputs in the same buffer.
1765 * Which transform feedback stream this buffer binding is associated with.
1771 /** Post-link transform feedback info. */
1772 struct gl_transform_feedback_info
1774 unsigned NumOutputs
;
1776 /* Bitmask of active buffer indices. */
1777 unsigned ActiveBuffers
;
1779 struct gl_transform_feedback_output
*Outputs
;
1781 /** Transform feedback varyings used for the linking of this shader program.
1783 * Use for glGetTransformFeedbackVarying().
1785 struct gl_transform_feedback_varying_info
*Varyings
;
1788 struct gl_transform_feedback_buffer Buffers
[MAX_FEEDBACK_BUFFERS
];
1793 * Transform feedback object state
1795 struct gl_transform_feedback_object
1797 GLuint Name
; /**< AKA the object ID */
1799 GLchar
*Label
; /**< GL_KHR_debug */
1800 GLboolean Active
; /**< Is transform feedback enabled? */
1801 GLboolean Paused
; /**< Is transform feedback paused? */
1802 GLboolean EndedAnytime
; /**< Has EndTransformFeedback been called
1804 GLboolean EverBound
; /**< Has this object been bound? */
1807 * GLES: if Active is true, remaining number of primitives which can be
1808 * rendered without overflow. This is necessary to track because GLES
1809 * requires us to generate INVALID_OPERATION if a call to glDrawArrays or
1810 * glDrawArraysInstanced would overflow transform feedback buffers.
1811 * Undefined if Active is false.
1813 * Not tracked for desktop GL since it's unnecessary.
1815 unsigned GlesRemainingPrims
;
1818 * The program active when BeginTransformFeedback() was called.
1819 * When active and unpaused, this equals ctx->Shader.CurrentProgram[stage],
1820 * where stage is the pipeline stage that is the source of data for
1821 * transform feedback.
1823 struct gl_program
*program
;
1825 /** The feedback buffers */
1826 GLuint BufferNames
[MAX_FEEDBACK_BUFFERS
];
1827 struct gl_buffer_object
*Buffers
[MAX_FEEDBACK_BUFFERS
];
1829 /** Start of feedback data in dest buffer */
1830 GLintptr Offset
[MAX_FEEDBACK_BUFFERS
];
1833 * Max data to put into dest buffer (in bytes). Computed based on
1834 * RequestedSize and the actual size of the buffer.
1836 GLsizeiptr Size
[MAX_FEEDBACK_BUFFERS
];
1839 * Size that was specified when the buffer was bound. If the buffer was
1840 * bound with glBindBufferBase() or glBindBufferOffsetEXT(), this value is
1843 GLsizeiptr RequestedSize
[MAX_FEEDBACK_BUFFERS
];
1848 * Context state for transform feedback.
1850 struct gl_transform_feedback_state
1852 GLenum16 Mode
; /**< GL_POINTS, GL_LINES or GL_TRIANGLES */
1854 /** The general binding point (GL_TRANSFORM_FEEDBACK_BUFFER) */
1855 struct gl_buffer_object
*CurrentBuffer
;
1857 /** The table of all transform feedback objects */
1858 struct _mesa_HashTable
*Objects
;
1860 /** The current xform-fb object (GL_TRANSFORM_FEEDBACK_BINDING) */
1861 struct gl_transform_feedback_object
*CurrentObject
;
1863 /** The default xform-fb object (Name==0) */
1864 struct gl_transform_feedback_object
*DefaultObject
;
1869 * A "performance monitor" as described in AMD_performance_monitor.
1871 struct gl_perf_monitor_object
1875 /** True if the monitor is currently active (Begin called but not End). */
1879 * True if the monitor has ended.
1881 * This is distinct from !Active because it may never have began.
1886 * A list of groups with currently active counters.
1888 * ActiveGroups[g] == n if there are n counters active from group 'g'.
1890 unsigned *ActiveGroups
;
1893 * An array of bitsets, subscripted by group ID, then indexed by counter ID.
1895 * Checking whether counter 'c' in group 'g' is active can be done via:
1897 * BITSET_TEST(ActiveCounters[g], c)
1899 GLuint
**ActiveCounters
;
1903 union gl_perf_monitor_counter_value
1911 struct gl_perf_monitor_counter
1913 /** Human readable name for the counter. */
1917 * Data type of the counter. Valid values are FLOAT, UNSIGNED_INT,
1918 * UNSIGNED_INT64_AMD, and PERCENTAGE_AMD.
1922 /** Minimum counter value. */
1923 union gl_perf_monitor_counter_value Minimum
;
1925 /** Maximum counter value. */
1926 union gl_perf_monitor_counter_value Maximum
;
1930 struct gl_perf_monitor_group
1932 /** Human readable name for the group. */
1936 * Maximum number of counters in this group which can be active at the
1939 GLuint MaxActiveCounters
;
1941 /** Array of counters within this group. */
1942 const struct gl_perf_monitor_counter
*Counters
;
1948 * A query object instance as described in INTEL_performance_query.
1950 * NB: We want to keep this and the corresponding backend structure
1951 * relatively lean considering that applications may expect to
1952 * allocate enough objects to be able to query around all draw calls
1955 struct gl_perf_query_object
1957 GLuint Id
; /**< hash table ID/name */
1958 unsigned Used
:1; /**< has been used for 1 or more queries */
1959 unsigned Active
:1; /**< inside Begin/EndPerfQuery */
1960 unsigned Ready
:1; /**< result is ready? */
1965 * Context state for AMD_performance_monitor.
1967 struct gl_perf_monitor_state
1969 /** Array of performance monitor groups (indexed by group ID) */
1970 const struct gl_perf_monitor_group
*Groups
;
1973 /** The table of all performance monitors. */
1974 struct _mesa_HashTable
*Monitors
;
1979 * Context state for INTEL_performance_query.
1981 struct gl_perf_query_state
1983 struct _mesa_HashTable
*Objects
; /**< The table of all performance query objects */
1988 * A bindless sampler object.
1990 struct gl_bindless_sampler
1992 /** Texture unit (set by glUniform1()). */
1995 /** Whether this bindless sampler is bound to a unit. */
1998 /** Texture Target (TEXTURE_1D/2D/3D/etc_INDEX). */
1999 gl_texture_index target
;
2001 /** Pointer to the base of the data. */
2007 * A bindless image object.
2009 struct gl_bindless_image
2011 /** Image unit (set by glUniform1()). */
2014 /** Whether this bindless image is bound to a unit. */
2017 /** Access qualifier (GL_READ_WRITE, GL_READ_ONLY, GL_WRITE_ONLY) */
2020 /** Pointer to the base of the data. */
2026 * Current vertex processing mode: fixed function vs. shader.
2027 * In reality, fixed function is probably implemented by a shader but that's
2028 * not what we care about here.
2032 VP_MODE_FF
, /**< legacy / fixed function */
2033 VP_MODE_SHADER
, /**< ARB vertex program or GLSL vertex shader */
2034 VP_MODE_MAX
/**< for sizing arrays */
2035 } gl_vertex_processing_mode
;
2039 * Base class for any kind of program object
2043 /** FIXME: This must be first until we split shader_info from nir_shader */
2044 struct shader_info info
;
2048 GLubyte
*String
; /**< Null-terminated program text */
2050 /** GL_VERTEX/FRAGMENT_PROGRAM_ARB, GL_GEOMETRY_PROGRAM_NV */
2052 GLenum16 Format
; /**< String encoding format */
2054 GLboolean _Used
; /**< Ever used for drawing? Used for debugging */
2056 struct nir_shader
*nir
;
2058 /* Saved and restored with metadata. Freed with ralloc. */
2059 void *driver_cache_blob
;
2060 size_t driver_cache_blob_size
;
2062 bool is_arb_asm
; /** Is this an ARB assembly-style program */
2064 /** Is this program written to on disk shader cache */
2065 bool program_written_to_cache
;
2067 /** Subset of OutputsWritten outputs written with non-zero index. */
2068 GLbitfield64 SecondaryOutputsWritten
;
2069 /** TEXTURE_x_BIT bitmask */
2070 GLbitfield16 TexturesUsed
[MAX_COMBINED_TEXTURE_IMAGE_UNITS
];
2071 /** Bitfield of which samplers are used */
2072 GLbitfield SamplersUsed
;
2073 /** Texture units used for shadow sampling. */
2074 GLbitfield ShadowSamplers
;
2075 /** Texture units used for samplerExternalOES */
2076 GLbitfield ExternalSamplersUsed
;
2078 /* Fragement shader only fields */
2079 GLboolean OriginUpperLeft
;
2080 GLboolean PixelCenterInteger
;
2082 /** Named parameters, constants, etc. from program text */
2083 struct gl_program_parameter_list
*Parameters
;
2085 /** Map from sampler unit to texture unit (set by glUniform1i()) */
2086 GLubyte SamplerUnits
[MAX_SAMPLERS
];
2088 /* FIXME: We should be able to make this struct a union. However some
2089 * drivers (i915/fragment_programs, swrast/prog_execute) mix the use of
2090 * these fields, we should fix this.
2093 /** Fields used by GLSL programs */
2095 /** Data shared by gl_program and gl_shader_program */
2096 struct gl_shader_program_data
*data
;
2098 struct gl_active_atomic_buffer
**AtomicBuffers
;
2100 /** Post-link transform feedback info. */
2101 struct gl_transform_feedback_info
*LinkedTransformFeedback
;
2104 * Number of types for subroutine uniforms.
2106 GLuint NumSubroutineUniformTypes
;
2109 * Subroutine uniform remap table
2110 * based on the program level uniform remap table.
2112 GLuint NumSubroutineUniforms
; /* non-sparse total */
2113 GLuint NumSubroutineUniformRemapTable
;
2114 struct gl_uniform_storage
**SubroutineUniformRemapTable
;
2117 * Num of subroutine functions for this stage and storage for them.
2119 GLuint NumSubroutineFunctions
;
2120 GLuint MaxSubroutineFunctionIndex
;
2121 struct gl_subroutine_function
*SubroutineFunctions
;
2124 * Map from image uniform index to image unit (set by glUniform1i())
2126 * An image uniform index is associated with each image uniform by
2127 * the linker. The image index associated with each uniform is
2128 * stored in the \c gl_uniform_storage::image field.
2130 GLubyte ImageUnits
[MAX_IMAGE_UNIFORMS
];
2133 * Access qualifier specified in the shader for each image uniform
2134 * index. Either \c GL_READ_ONLY, \c GL_WRITE_ONLY or \c
2137 * It may be different, though only more strict than the value of
2138 * \c gl_image_unit::Access for the corresponding image unit.
2140 GLenum16 ImageAccess
[MAX_IMAGE_UNIFORMS
];
2142 struct gl_uniform_block
**UniformBlocks
;
2143 struct gl_uniform_block
**ShaderStorageBlocks
;
2145 /** Which texture target is being sampled
2146 * (TEXTURE_1D/2D/3D/etc_INDEX)
2148 GLubyte SamplerTargets
[MAX_SAMPLERS
];
2151 * Number of samplers declared with the bindless_sampler layout
2152 * qualifier as specified by ARB_bindless_texture.
2154 GLuint NumBindlessSamplers
;
2155 GLboolean HasBoundBindlessSampler
;
2156 struct gl_bindless_sampler
*BindlessSamplers
;
2159 * Number of images declared with the bindless_image layout qualifier
2160 * as specified by ARB_bindless_texture.
2162 GLuint NumBindlessImages
;
2163 GLboolean HasBoundBindlessImage
;
2164 struct gl_bindless_image
*BindlessImages
;
2169 * A bitmask of gl_advanced_blend_mode values
2171 GLbitfield BlendSupport
;
2176 /** ARB assembly-style program fields */
2178 struct prog_instruction
*Instructions
;
2181 * Local parameters used by the program.
2183 * It's dynamically allocated because it is rarely used (just
2184 * assembly-style programs), and MAX_PROGRAM_LOCAL_PARAMS entries
2185 * once it's allocated.
2187 GLfloat (*LocalParams
)[4];
2189 /** Bitmask of which register files are read/written with indirect
2190 * addressing. Mask of (1 << PROGRAM_x) bits.
2192 GLbitfield IndirectRegisterFiles
;
2194 /** Logical counts */
2196 GLuint NumInstructions
;
2197 GLuint NumTemporaries
;
2198 GLuint NumParameters
;
2199 GLuint NumAttributes
;
2200 GLuint NumAddressRegs
;
2201 GLuint NumAluInstructions
;
2202 GLuint NumTexInstructions
;
2203 GLuint NumTexIndirections
;
2205 /** Native, actual h/w counts */
2207 GLuint NumNativeInstructions
;
2208 GLuint NumNativeTemporaries
;
2209 GLuint NumNativeParameters
;
2210 GLuint NumNativeAttributes
;
2211 GLuint NumNativeAddressRegs
;
2212 GLuint NumNativeAluInstructions
;
2213 GLuint NumNativeTexInstructions
;
2214 GLuint NumNativeTexIndirections
;
2217 /** Used by ARB assembly-style programs. Can only be true for vertex
2220 GLboolean IsPositionInvariant
;
2227 * State common to vertex and fragment programs.
2229 struct gl_program_state
2231 GLint ErrorPos
; /* GL_PROGRAM_ERROR_POSITION_ARB/NV */
2232 const char *ErrorString
; /* GL_PROGRAM_ERROR_STRING_ARB/NV */
2237 * Context state for vertex programs.
2239 struct gl_vertex_program_state
2241 GLboolean Enabled
; /**< User-set GL_VERTEX_PROGRAM_ARB/NV flag */
2242 GLboolean PointSizeEnabled
; /**< GL_VERTEX_PROGRAM_POINT_SIZE_ARB/NV */
2243 GLboolean TwoSideEnabled
; /**< GL_VERTEX_PROGRAM_TWO_SIDE_ARB/NV */
2244 /** Should fixed-function T&L be implemented with a vertex prog? */
2245 GLboolean _MaintainTnlProgram
;
2247 struct gl_program
*Current
; /**< User-bound vertex program */
2249 /** Currently enabled and valid vertex program (including internal
2250 * programs, user-defined vertex programs and GLSL vertex shaders).
2251 * This is the program we must use when rendering.
2253 struct gl_program
*_Current
;
2255 GLfloat Parameters
[MAX_PROGRAM_ENV_PARAMS
][4]; /**< Env params */
2257 /** Program to emulate fixed-function T&L (see above) */
2258 struct gl_program
*_TnlProgram
;
2260 /** Cache of fixed-function programs */
2261 struct gl_program_cache
*Cache
;
2263 GLboolean _Overriden
;
2266 * If we have a vertex program, a TNL program or no program at all.
2267 * Note that this value should be kept up to date all the time,
2268 * nevertheless its correctness is asserted in _mesa_update_state.
2269 * The reason is to avoid calling _mesa_update_state twice we need
2270 * this value on draw *before* actually calling _mesa_update_state.
2271 * Also it should need to get recomputed only on changes to the
2272 * vertex program which are heavyweight already.
2274 gl_vertex_processing_mode _VPMode
;
2278 * Context state for tessellation control programs.
2280 struct gl_tess_ctrl_program_state
2282 /** Currently bound and valid shader. */
2283 struct gl_program
*_Current
;
2285 GLint patch_vertices
;
2286 GLfloat patch_default_outer_level
[4];
2287 GLfloat patch_default_inner_level
[2];
2291 * Context state for tessellation evaluation programs.
2293 struct gl_tess_eval_program_state
2295 /** Currently bound and valid shader. */
2296 struct gl_program
*_Current
;
2300 * Context state for geometry programs.
2302 struct gl_geometry_program_state
2305 * Currently enabled and valid program (including internal programs
2306 * and compiled shader programs).
2308 struct gl_program
*_Current
;
2312 * Context state for fragment programs.
2314 struct gl_fragment_program_state
2316 GLboolean Enabled
; /**< User-set fragment program enable flag */
2317 /** Should fixed-function texturing be implemented with a fragment prog? */
2318 GLboolean _MaintainTexEnvProgram
;
2320 struct gl_program
*Current
; /**< User-bound fragment program */
2323 * Currently enabled and valid fragment program (including internal
2324 * programs, user-defined fragment programs and GLSL fragment shaders).
2325 * This is the program we must use when rendering.
2327 struct gl_program
*_Current
;
2329 GLfloat Parameters
[MAX_PROGRAM_ENV_PARAMS
][4]; /**< Env params */
2331 /** Program to emulate fixed-function texture env/combine (see above) */
2332 struct gl_program
*_TexEnvProgram
;
2334 /** Cache of fixed-function programs */
2335 struct gl_program_cache
*Cache
;
2340 * Context state for compute programs.
2342 struct gl_compute_program_state
2344 /** Currently enabled and valid program (including internal programs
2345 * and compiled shader programs).
2347 struct gl_program
*_Current
;
2352 * ATI_fragment_shader runtime state
2355 struct atifs_instruction
;
2356 struct atifs_setupinst
;
2359 * ATI fragment shader
2361 struct ati_fragment_shader
2365 struct atifs_instruction
*Instructions
[2];
2366 struct atifs_setupinst
*SetupInst
[2];
2367 GLfloat Constants
[8][4];
2368 GLbitfield LocalConstDef
; /**< Indicates which constants have been set */
2369 GLubyte numArithInstr
[2];
2370 GLubyte regsAssigned
[2];
2371 GLubyte NumPasses
; /**< 1 or 2 */
2373 * Current compile stage: 0 setup pass1, 1 arith pass1,
2374 * 2 setup pass2, 3 arith pass2.
2377 GLubyte last_optype
;
2378 GLboolean interpinp1
;
2381 * Array of 2 bit values for each tex unit to remember whether
2382 * STR or STQ swizzle was used
2385 struct gl_program
*Program
;
2389 * Context state for GL_ATI_fragment_shader
2391 struct gl_ati_fragment_shader_state
2394 GLboolean Compiling
;
2395 GLfloat GlobalConstants
[8][4];
2396 struct ati_fragment_shader
*Current
;
2400 * Shader subroutine function definition
2402 struct gl_subroutine_function
2406 int num_compat_types
;
2407 const struct glsl_type
**types
;
2411 * Shader information needed by both gl_shader and gl_linked shader.
2413 struct gl_shader_info
2416 * Tessellation Control shader state from layout qualifiers.
2420 * 0 - vertices not declared in shader, or
2421 * 1 .. GL_MAX_PATCH_VERTICES
2427 * Tessellation Evaluation shader state from layout qualifiers.
2431 * GL_TRIANGLES, GL_QUADS, GL_ISOLINES or PRIM_UNKNOWN if it's not set
2434 GLenum16 PrimitiveMode
;
2436 enum gl_tess_spacing Spacing
;
2439 * GL_CW, GL_CCW, or 0 if it's not set in this shader.
2441 GLenum16 VertexOrder
;
2443 * 1, 0, or -1 if it's not set in this shader.
2449 * Geometry shader state from GLSL 1.50 layout qualifiers.
2454 * 0 - Invocations count not declared in shader, or
2455 * 1 .. Const.MaxGeometryShaderInvocations
2459 * GL_POINTS, GL_LINES, GL_LINES_ADJACENCY, GL_TRIANGLES, or
2460 * GL_TRIANGLES_ADJACENCY, or PRIM_UNKNOWN if it's not set in this
2465 * GL_POINTS, GL_LINE_STRIP or GL_TRIANGLE_STRIP, or PRIM_UNKNOWN if
2466 * it's not set in this shader.
2468 GLenum16 OutputType
;
2472 * Compute shader state from ARB_compute_shader and
2473 * ARB_compute_variable_group_size layout qualifiers.
2477 * Size specified using local_size_{x,y,z}, or all 0's to indicate that
2478 * it's not set in this shader.
2480 unsigned LocalSize
[3];
2483 * Whether a variable work group size has been specified as defined by
2484 * ARB_compute_variable_group_size.
2486 bool LocalSizeVariable
;
2491 * A linked GLSL shader object.
2493 struct gl_linked_shader
2495 gl_shader_stage Stage
;
2498 unsigned SourceChecksum
;
2501 struct gl_program
*Program
; /**< Post-compile assembly code */
2504 * \name Sampler tracking
2506 * \note Each of these fields is only set post-linking.
2509 GLbitfield shadow_samplers
; /**< Samplers used for shadow sampling. */
2513 * Number of default uniform block components used by this shader.
2515 * This field is only set post-linking.
2517 unsigned num_uniform_components
;
2520 * Number of combined uniform components used by this shader.
2522 * This field is only set post-linking. It is the sum of the uniform block
2523 * sizes divided by sizeof(float), and num_uniform_compoennts.
2525 unsigned num_combined_uniform_components
;
2527 struct exec_list
*ir
;
2528 struct exec_list
*packed_varyings
;
2529 struct exec_list
*fragdata_arrays
;
2530 struct glsl_symbol_table
*symbols
;
2533 * ARB_gl_spirv related data.
2535 * This is actually a reference to the gl_shader::spirv_data, which
2536 * stores information that is also needed during linking.
2538 struct gl_shader_spirv_data
*spirv_data
;
2543 * Compile status enum. COMPILE_SKIPPED is used to indicate the compile
2544 * was skipped due to the shader matching one that's been seen before by
2545 * the on-disk cache.
2547 enum gl_compile_status
2549 COMPILE_FAILURE
= 0,
2556 * A GLSL shader object.
2560 /** GL_FRAGMENT_SHADER || GL_VERTEX_SHADER || GL_GEOMETRY_SHADER_ARB ||
2561 * GL_TESS_CONTROL_SHADER || GL_TESS_EVALUATION_SHADER.
2562 * Must be the first field.
2565 gl_shader_stage Stage
;
2566 GLuint Name
; /**< AKA the handle */
2567 GLint RefCount
; /**< Reference count */
2568 GLchar
*Label
; /**< GL_KHR_debug */
2569 unsigned char sha1
[20]; /**< SHA1 hash of pre-processed source */
2570 GLboolean DeletePending
;
2571 bool IsES
; /**< True if this shader uses GLSL ES */
2573 enum gl_compile_status CompileStatus
;
2576 unsigned SourceChecksum
; /**< for debug/logging purposes */
2578 const GLchar
*Source
; /**< Source code string */
2580 const GLchar
*FallbackSource
; /**< Fallback string used by on-disk cache*/
2584 unsigned Version
; /**< GLSL version used for linking */
2587 * A bitmask of gl_advanced_blend_mode values
2589 GLbitfield BlendSupport
;
2591 struct exec_list
*ir
;
2592 struct glsl_symbol_table
*symbols
;
2595 * Whether early fragment tests are enabled as defined by
2596 * ARB_shader_image_load_store.
2598 bool EarlyFragmentTests
;
2600 bool ARB_fragment_coord_conventions_enable
;
2602 bool redeclares_gl_fragcoord
;
2603 bool uses_gl_fragcoord
;
2605 bool PostDepthCoverage
;
2606 bool PixelInterlockOrdered
;
2607 bool PixelInterlockUnordered
;
2608 bool SampleInterlockOrdered
;
2609 bool SampleInterlockUnordered
;
2613 * Fragment shader state from GLSL 1.50 layout qualifiers.
2615 bool origin_upper_left
;
2616 bool pixel_center_integer
;
2619 * Whether bindless_sampler/bindless_image, and respectively
2620 * bound_sampler/bound_image are declared at global scope as defined by
2621 * ARB_bindless_texture.
2623 bool bindless_sampler
;
2624 bool bindless_image
;
2628 /** Global xfb_stride out qualifier if any */
2629 GLuint TransformFeedbackBufferStride
[MAX_FEEDBACK_BUFFERS
];
2631 struct gl_shader_info info
;
2633 /* ARB_gl_spirv related data */
2634 struct gl_shader_spirv_data
*spirv_data
;
2638 struct gl_uniform_buffer_variable
2643 * Name of the uniform as seen by glGetUniformIndices.
2645 * glGetUniformIndices requires that the block instance index \b not be
2646 * present in the name of queried uniforms.
2649 * \c gl_uniform_buffer_variable::IndexName and
2650 * \c gl_uniform_buffer_variable::Name may point to identical storage.
2654 const struct glsl_type
*Type
;
2655 unsigned int Offset
;
2660 struct gl_uniform_block
2662 /** Declared name of the uniform block */
2665 /** Array of supplemental information about UBO ir_variables. */
2666 struct gl_uniform_buffer_variable
*Uniforms
;
2670 * Index (GL_UNIFORM_BLOCK_BINDING) into ctx->UniformBufferBindings[] to use
2671 * with glBindBufferBase to bind a buffer object to this uniform block.
2676 * Minimum size (in bytes) of a buffer object to back this uniform buffer
2677 * (GL_UNIFORM_BLOCK_DATA_SIZE).
2679 GLuint UniformBufferSize
;
2681 /** Stages that reference this block */
2685 * Linearized array index for uniform block instance arrays
2687 * Given a uniform block instance array declared with size
2688 * blk[s_0][s_1]..[s_m], the block referenced by blk[i_0][i_1]..[i_m] will
2689 * have the linearized array index
2692 * i_m + ∑ i_j * ∏ s_k
2695 * For a uniform block instance that is not an array, this is always 0.
2697 uint8_t linearized_array_index
;
2700 * Layout specified in the shader
2702 * This isn't accessible through the API, but it is used while
2703 * cross-validating uniform blocks.
2705 enum glsl_interface_packing _Packing
;
2706 GLboolean _RowMajor
;
2710 * Structure that represents a reference to an atomic buffer from some
2713 struct gl_active_atomic_buffer
2715 /** Uniform indices of the atomic counters declared within it. */
2719 /** Binding point index associated with it. */
2722 /** Minimum reasonable size it is expected to have. */
2725 /** Shader stages making use of it. */
2726 GLboolean StageReferences
[MESA_SHADER_STAGES
];
2730 * Data container for shader queries. This holds only the minimal
2731 * amount of required information for resource queries to work.
2733 struct gl_shader_variable
2736 * Declared type of the variable
2738 const struct glsl_type
*type
;
2741 * If the variable is in an interface block, this is the type of the block.
2743 const struct glsl_type
*interface_type
;
2746 * For variables inside structs (possibly recursively), this is the
2747 * outermost struct type.
2749 const struct glsl_type
*outermost_struct_type
;
2752 * Declared name of the variable
2757 * Storage location of the base of this variable
2759 * The precise meaning of this field depends on the nature of the variable.
2761 * - Vertex shader input: one of the values from \c gl_vert_attrib.
2762 * - Vertex shader output: one of the values from \c gl_varying_slot.
2763 * - Geometry shader input: one of the values from \c gl_varying_slot.
2764 * - Geometry shader output: one of the values from \c gl_varying_slot.
2765 * - Fragment shader input: one of the values from \c gl_varying_slot.
2766 * - Fragment shader output: one of the values from \c gl_frag_result.
2767 * - Uniforms: Per-stage uniform slot number for default uniform block.
2768 * - Uniforms: Index within the uniform block definition for UBO members.
2769 * - Non-UBO Uniforms: explicit location until linking then reused to
2770 * store uniform slot number.
2771 * - Other: This field is not currently used.
2773 * If the variable is a uniform, shader input, or shader output, and the
2774 * slot has not been assigned, the value will be -1.
2779 * Specifies the first component the variable is stored in as per
2780 * ARB_enhanced_layouts.
2782 unsigned component
:2;
2785 * Output index for dual source blending.
2788 * The GLSL spec only allows the values 0 or 1 for the index in \b dual
2794 * Specifies whether a shader input/output is per-patch in tessellation
2800 * Storage class of the variable.
2802 * \sa (n)ir_variable_mode
2807 * Interpolation mode for shader inputs / outputs
2809 * \sa glsl_interp_mode
2811 unsigned interpolation
:2;
2814 * Was the location explicitly set in the shader?
2816 * If the location is explicitly set in the shader, it \b cannot be changed
2817 * by the linker or by the API (e.g., calls to \c glBindAttribLocation have
2820 unsigned explicit_location
:1;
2823 * Precision qualifier.
2825 unsigned precision
:2;
2829 * Active resource in a gl_shader_program
2831 struct gl_program_resource
2833 GLenum16 Type
; /** Program interface type. */
2834 const void *Data
; /** Pointer to resource associated data structure. */
2835 uint8_t StageReferences
; /** Bitmask of shader stage references. */
2839 * Link status enum. LINKING_SKIPPED is used to indicate linking
2840 * was skipped due to the shader being loaded from the on-disk cache.
2844 LINKING_FAILURE
= 0,
2850 * A data structure to be shared by gl_shader_program and gl_program.
2852 struct gl_shader_program_data
2854 GLint RefCount
; /**< Reference count */
2856 /** SHA1 hash of linked shader program */
2857 unsigned char sha1
[20];
2859 unsigned NumUniformStorage
;
2860 unsigned NumHiddenUniforms
;
2861 struct gl_uniform_storage
*UniformStorage
;
2863 unsigned NumUniformBlocks
;
2864 unsigned NumShaderStorageBlocks
;
2866 struct gl_uniform_block
*UniformBlocks
;
2867 struct gl_uniform_block
*ShaderStorageBlocks
;
2869 struct gl_active_atomic_buffer
*AtomicBuffers
;
2870 unsigned NumAtomicBuffers
;
2872 /* Shader cache variables used during restore */
2873 unsigned NumUniformDataSlots
;
2874 union gl_constant_value
*UniformDataSlots
;
2876 /* Used to hold initial uniform values for program binary restores.
2878 * From the ARB_get_program_binary spec:
2880 * "A successful call to ProgramBinary will reset all uniform
2881 * variables to their initial values. The initial value is either
2882 * the value of the variable's initializer as specified in the
2883 * original shader source, or 0 if no initializer was present.
2885 union gl_constant_value
*UniformDataDefaults
;
2887 GLboolean Validated
;
2889 /** List of all active resources after linking. */
2890 struct gl_program_resource
*ProgramResourceList
;
2891 unsigned NumProgramResourceList
;
2893 enum gl_link_status LinkStatus
; /**< GL_LINK_STATUS */
2896 unsigned Version
; /**< GLSL version used for linking */
2898 /* Mask of stages this program was linked against */
2899 unsigned linked_stages
;
2901 /* Whether the shaders of this program are loaded from SPIR-V binaries
2902 * (all have the SPIR_V_BINARY_ARB state). This was introduced by the
2903 * ARB_gl_spirv extension.
2909 * A GLSL program object.
2910 * Basically a linked collection of vertex and fragment shaders.
2912 struct gl_shader_program
2914 GLenum16 Type
; /**< Always GL_SHADER_PROGRAM (internal token) */
2915 GLuint Name
; /**< aka handle or ID */
2916 GLchar
*Label
; /**< GL_KHR_debug */
2917 GLint RefCount
; /**< Reference count */
2918 GLboolean DeletePending
;
2921 * Is the application intending to glGetProgramBinary this program?
2923 GLboolean BinaryRetreivableHint
;
2926 * Indicates whether program can be bound for individual pipeline stages
2927 * using UseProgramStages after it is next linked.
2929 GLboolean SeparateShader
;
2931 GLuint NumShaders
; /**< number of attached shaders */
2932 struct gl_shader
**Shaders
; /**< List of attached the shaders */
2935 * User-defined attribute bindings
2937 * These are set via \c glBindAttribLocation and are used to direct the
2938 * GLSL linker. These are \b not the values used in the compiled shader,
2939 * and they are \b not the values returned by \c glGetAttribLocation.
2941 struct string_to_uint_map
*AttributeBindings
;
2944 * User-defined fragment data bindings
2946 * These are set via \c glBindFragDataLocation and are used to direct the
2947 * GLSL linker. These are \b not the values used in the compiled shader,
2948 * and they are \b not the values returned by \c glGetFragDataLocation.
2950 struct string_to_uint_map
*FragDataBindings
;
2951 struct string_to_uint_map
*FragDataIndexBindings
;
2954 * Transform feedback varyings last specified by
2955 * glTransformFeedbackVaryings().
2957 * For the current set of transform feedback varyings used for transform
2958 * feedback output, see LinkedTransformFeedback.
2961 GLenum16 BufferMode
;
2962 /** Global xfb_stride out qualifier if any */
2963 GLuint BufferStride
[MAX_FEEDBACK_BUFFERS
];
2965 GLchar
**VaryingNames
; /**< Array [NumVarying] of char * */
2966 } TransformFeedback
;
2968 struct gl_program
*last_vert_prog
;
2970 /** Post-link gl_FragDepth layout for ARB_conservative_depth. */
2971 enum gl_frag_depth_layout FragDepthLayout
;
2974 * Geometry shader state - copied into gl_program by
2975 * _mesa_copy_linked_program_data().
2980 bool UsesEndPrimitive
;
2985 * Compute shader state - copied into gl_program by
2986 * _mesa_copy_linked_program_data().
2990 * Size of shared variables accessed by the compute shader.
2992 unsigned SharedSize
;
2995 /** Data shared by gl_program and gl_shader_program */
2996 struct gl_shader_program_data
*data
;
2999 * Mapping from GL uniform locations returned by \c glUniformLocation to
3000 * UniformStorage entries. Arrays will have multiple contiguous slots
3001 * in the UniformRemapTable, all pointing to the same UniformStorage entry.
3003 unsigned NumUniformRemapTable
;
3004 struct gl_uniform_storage
**UniformRemapTable
;
3007 * Sometimes there are empty slots left over in UniformRemapTable after we
3008 * allocate slots to explicit locations. This list stores the blocks of
3009 * continuous empty slots inside UniformRemapTable.
3011 struct exec_list EmptyUniformLocations
;
3014 * Total number of explicit uniform location including inactive uniforms.
3016 unsigned NumExplicitUniformLocations
;
3019 * Map of active uniform names to locations
3021 * Maps any active uniform that is not an array element to a location.
3022 * Each active uniform, including individual structure members will appear
3023 * in this map. This roughly corresponds to the set of names that would be
3024 * enumerated by \c glGetActiveUniform.
3026 struct string_to_uint_map
*UniformHash
;
3028 GLboolean SamplersValidated
; /**< Samplers validated against texture units? */
3030 bool IsES
; /**< True if this program uses GLSL ES */
3033 * Per-stage shaders resulting from the first stage of linking.
3035 * Set of linked shaders for this program. The array is accessed using the
3036 * \c MESA_SHADER_* defines. Entries for non-existent stages will be
3039 struct gl_linked_shader
*_LinkedShaders
[MESA_SHADER_STAGES
];
3042 * True if any of the fragment shaders attached to this program use:
3043 * #extension ARB_fragment_coord_conventions: enable
3045 GLboolean ARB_fragment_coord_conventions_enable
;
3049 #define GLSL_DUMP 0x1 /**< Dump shaders to stdout */
3050 #define GLSL_LOG 0x2 /**< Write shaders to files */
3051 #define GLSL_UNIFORMS 0x4 /**< Print glUniform calls */
3052 #define GLSL_NOP_VERT 0x8 /**< Force no-op vertex shaders */
3053 #define GLSL_NOP_FRAG 0x10 /**< Force no-op fragment shaders */
3054 #define GLSL_USE_PROG 0x20 /**< Log glUseProgram calls */
3055 #define GLSL_REPORT_ERRORS 0x40 /**< Print compilation errors */
3056 #define GLSL_DUMP_ON_ERROR 0x80 /**< Dump shaders to stderr on compile error */
3057 #define GLSL_CACHE_INFO 0x100 /**< Print debug information about shader cache */
3058 #define GLSL_CACHE_FALLBACK 0x200 /**< Force shader cache fallback paths */
3062 * Context state for GLSL vertex/fragment shaders.
3063 * Extended to support pipeline object
3065 struct gl_pipeline_object
3067 /** Name of the pipeline object as received from glGenProgramPipelines.
3068 * It would be 0 for shaders without separate shader objects.
3074 GLchar
*Label
; /**< GL_KHR_debug */
3077 * Programs used for rendering
3079 * There is a separate program set for each shader stage.
3081 struct gl_program
*CurrentProgram
[MESA_SHADER_STAGES
];
3083 struct gl_shader_program
*ReferencedPrograms
[MESA_SHADER_STAGES
];
3086 * Program used by glUniform calls.
3088 * Explicitly set by \c glUseProgram and \c glActiveProgramEXT.
3090 struct gl_shader_program
*ActiveProgram
;
3092 GLbitfield Flags
; /**< Mask of GLSL_x flags */
3093 GLboolean EverBound
; /**< Has the pipeline object been created */
3094 GLboolean Validated
; /**< Pipeline Validation status */
3100 * Context state for GLSL pipeline shaders.
3102 struct gl_pipeline_shader_state
3104 /** Currently bound pipeline object. See _mesa_BindProgramPipeline() */
3105 struct gl_pipeline_object
*Current
;
3107 /** Default Object to ensure that _Shader is never NULL */
3108 struct gl_pipeline_object
*Default
;
3110 /** Pipeline objects */
3111 struct _mesa_HashTable
*Objects
;
3115 * Compiler options for a single GLSL shaders type
3117 struct gl_shader_compiler_options
3119 /** Driver-selectable options: */
3120 GLboolean EmitNoLoops
;
3121 GLboolean EmitNoCont
; /**< Emit CONT opcode? */
3122 GLboolean EmitNoMainReturn
; /**< Emit CONT/RET opcodes? */
3123 GLboolean EmitNoPow
; /**< Emit POW opcodes? */
3124 GLboolean EmitNoSat
; /**< Emit SAT opcodes? */
3125 GLboolean LowerCombinedClipCullDistance
; /** Lower gl_ClipDistance and
3126 * gl_CullDistance together from
3127 * float[8] to vec4[2]
3131 * \name Forms of indirect addressing the driver cannot do.
3134 GLboolean EmitNoIndirectInput
; /**< No indirect addressing of inputs */
3135 GLboolean EmitNoIndirectOutput
; /**< No indirect addressing of outputs */
3136 GLboolean EmitNoIndirectTemp
; /**< No indirect addressing of temps */
3137 GLboolean EmitNoIndirectUniform
; /**< No indirect addressing of constants */
3138 GLboolean EmitNoIndirectSampler
; /**< No indirect addressing of samplers */
3141 GLuint MaxIfDepth
; /**< Maximum nested IF blocks */
3142 GLuint MaxUnrollIterations
;
3145 * Optimize code for array of structures backends.
3147 * This is a proxy for:
3148 * - preferring DP4 instructions (rather than MUL/MAD) for
3149 * matrix * vector operations, such as position transformation.
3151 GLboolean OptimizeForAOS
;
3153 /** Lower UBO and SSBO access to intrinsics. */
3154 GLboolean LowerBufferInterfaceBlocks
;
3156 /** Clamp UBO and SSBO block indices so they don't go out-of-bounds. */
3157 GLboolean ClampBlockIndicesToArrayBounds
;
3159 const struct nir_shader_compiler_options
*NirOptions
;
3164 * Occlusion/timer query object.
3166 struct gl_query_object
3168 GLenum16 Target
; /**< The query target, when active */
3169 GLuint Id
; /**< hash table ID/name */
3170 GLchar
*Label
; /**< GL_KHR_debug */
3171 GLuint64EXT Result
; /**< the counter */
3172 GLboolean Active
; /**< inside Begin/EndQuery */
3173 GLboolean Ready
; /**< result is ready? */
3174 GLboolean EverBound
;/**< has query object ever been bound */
3175 GLuint Stream
; /**< The stream */
3180 * Context state for query objects.
3182 struct gl_query_state
3184 struct _mesa_HashTable
*QueryObjects
;
3185 struct gl_query_object
*CurrentOcclusionObject
; /* GL_ARB_occlusion_query */
3186 struct gl_query_object
*CurrentTimerObject
; /* GL_EXT_timer_query */
3188 /** GL_NV_conditional_render */
3189 struct gl_query_object
*CondRenderQuery
;
3191 /** GL_EXT_transform_feedback */
3192 struct gl_query_object
*PrimitivesGenerated
[MAX_VERTEX_STREAMS
];
3193 struct gl_query_object
*PrimitivesWritten
[MAX_VERTEX_STREAMS
];
3195 /** GL_ARB_transform_feedback_overflow_query */
3196 struct gl_query_object
*TransformFeedbackOverflow
[MAX_VERTEX_STREAMS
];
3197 struct gl_query_object
*TransformFeedbackOverflowAny
;
3199 /** GL_ARB_timer_query */
3200 struct gl_query_object
*TimeElapsed
;
3202 /** GL_ARB_pipeline_statistics_query */
3203 struct gl_query_object
*pipeline_stats
[MAX_PIPELINE_STATISTICS
];
3205 GLenum16 CondRenderMode
;
3209 /** Sync object state */
3210 struct gl_sync_object
3212 GLuint Name
; /**< Fence name */
3213 GLint RefCount
; /**< Reference count */
3214 GLchar
*Label
; /**< GL_KHR_debug */
3215 GLboolean DeletePending
; /**< Object was deleted while there were still
3216 * live references (e.g., sync not yet finished)
3218 GLenum16 SyncCondition
;
3219 GLbitfield Flags
; /**< Flags passed to glFenceSync */
3220 GLuint StatusFlag
:1; /**< Has the sync object been signaled? */
3225 * State which can be shared by multiple contexts:
3227 struct gl_shared_state
3229 simple_mtx_t Mutex
; /**< for thread safety */
3230 GLint RefCount
; /**< Reference count */
3231 struct _mesa_HashTable
*DisplayList
; /**< Display lists hash table */
3232 struct _mesa_HashTable
*BitmapAtlas
; /**< For optimized glBitmap text */
3233 struct _mesa_HashTable
*TexObjects
; /**< Texture objects hash table */
3235 /** Default texture objects (shared by all texture units) */
3236 struct gl_texture_object
*DefaultTex
[NUM_TEXTURE_TARGETS
];
3238 /** Fallback texture used when a bound texture is incomplete */
3239 struct gl_texture_object
*FallbackTex
[NUM_TEXTURE_TARGETS
];
3242 * \name Thread safety and statechange notification for texture
3245 * \todo Improve the granularity of locking.
3248 mtx_t TexMutex
; /**< texobj thread safety */
3249 GLuint TextureStateStamp
; /**< state notification for shared tex */
3252 /** Default buffer object for vertex arrays that aren't in VBOs */
3253 struct gl_buffer_object
*NullBufferObj
;
3256 * \name Vertex/geometry/fragment programs
3259 struct _mesa_HashTable
*Programs
; /**< All vertex/fragment programs */
3260 struct gl_program
*DefaultVertexProgram
;
3261 struct gl_program
*DefaultFragmentProgram
;
3264 /* GL_ATI_fragment_shader */
3265 struct _mesa_HashTable
*ATIShaders
;
3266 struct ati_fragment_shader
*DefaultFragmentShader
;
3268 struct _mesa_HashTable
*BufferObjects
;
3270 /** Table of both gl_shader and gl_shader_program objects */
3271 struct _mesa_HashTable
*ShaderObjects
;
3273 /* GL_EXT_framebuffer_object */
3274 struct _mesa_HashTable
*RenderBuffers
;
3275 struct _mesa_HashTable
*FrameBuffers
;
3278 struct set
*SyncObjects
;
3280 /** GL_ARB_sampler_objects */
3281 struct _mesa_HashTable
*SamplerObjects
;
3283 /* GL_ARB_bindless_texture */
3284 struct hash_table_u64
*TextureHandles
;
3285 struct hash_table_u64
*ImageHandles
;
3286 mtx_t HandlesMutex
; /**< For texture/image handles safety */
3289 * Some context in this share group was affected by a GPU reset
3291 * On the next call to \c glGetGraphicsResetStatus, contexts that have not
3292 * been affected by a GPU reset must also return
3293 * \c GL_INNOCENT_CONTEXT_RESET_ARB.
3295 * Once this field becomes true, it is never reset to false.
3297 bool ShareGroupReset
;
3299 /** EXT_external_objects */
3300 struct _mesa_HashTable
*MemoryObjects
;
3302 /** EXT_semaphore */
3303 struct _mesa_HashTable
*SemaphoreObjects
;
3306 * Some context in this share group was affected by a disjoint
3307 * operation. This operation can be anything that has effects on
3308 * values of timer queries in such manner that they become invalid for
3309 * performance metrics. As example gpu reset, counter overflow or gpu
3310 * frequency changes.
3312 bool DisjointOperation
;
3318 * Renderbuffers represent drawing surfaces such as color, depth and/or
3319 * stencil. A framebuffer object has a set of renderbuffers.
3320 * Drivers will typically derive subclasses of this type.
3322 struct gl_renderbuffer
3324 simple_mtx_t Mutex
; /**< for thread safety */
3325 GLuint ClassID
; /**< Useful for drivers */
3327 GLchar
*Label
; /**< GL_KHR_debug */
3329 GLuint Width
, Height
;
3331 GLboolean Purgeable
; /**< Is the buffer purgeable under memory pressure? */
3332 GLboolean AttachedAnytime
; /**< TRUE if it was attached to a framebuffer */
3334 * True for renderbuffers that wrap textures, giving the driver a chance to
3335 * flush render caches through the FinishRenderTexture hook.
3337 * Drivers may also set this on renderbuffers other than those generated by
3338 * glFramebufferTexture(), though it means FinishRenderTexture() would be
3339 * called without a rb->TexImage.
3341 GLboolean NeedsFinishRenderTexture
;
3342 GLubyte NumSamples
; /**< zero means not multisampled */
3343 GLubyte NumStorageSamples
; /**< for AMD_framebuffer_multisample_advanced */
3344 GLenum16 InternalFormat
; /**< The user-specified format */
3345 GLenum16 _BaseFormat
; /**< Either GL_RGB, GL_RGBA, GL_DEPTH_COMPONENT or
3346 GL_STENCIL_INDEX. */
3347 mesa_format Format
; /**< The actual renderbuffer memory format */
3349 * Pointer to the texture image if this renderbuffer wraps a texture,
3352 * Note that the reference on the gl_texture_object containing this
3353 * TexImage is held by the gl_renderbuffer_attachment.
3355 struct gl_texture_image
*TexImage
;
3357 /** Delete this renderbuffer */
3358 void (*Delete
)(struct gl_context
*ctx
, struct gl_renderbuffer
*rb
);
3360 /** Allocate new storage for this renderbuffer */
3361 GLboolean (*AllocStorage
)(struct gl_context
*ctx
,
3362 struct gl_renderbuffer
*rb
,
3363 GLenum internalFormat
,
3364 GLuint width
, GLuint height
);
3369 * A renderbuffer attachment points to either a texture object (and specifies
3370 * a mipmap level, cube face or 3D texture slice) or points to a renderbuffer.
3372 struct gl_renderbuffer_attachment
3374 GLenum16 Type
; /**< \c GL_NONE or \c GL_TEXTURE or \c GL_RENDERBUFFER_EXT */
3378 * If \c Type is \c GL_RENDERBUFFER_EXT, this stores a pointer to the
3379 * application supplied renderbuffer object.
3381 struct gl_renderbuffer
*Renderbuffer
;
3384 * If \c Type is \c GL_TEXTURE, this stores a pointer to the application
3385 * supplied texture object.
3387 struct gl_texture_object
*Texture
;
3388 GLuint TextureLevel
; /**< Attached mipmap level. */
3389 GLuint CubeMapFace
; /**< 0 .. 5, for cube map textures. */
3390 GLuint Zoffset
; /**< Slice for 3D textures, or layer for both 1D
3391 * and 2D array textures */
3397 * A framebuffer is a collection of renderbuffers (color, depth, stencil, etc).
3398 * In C++ terms, think of this as a base class from which device drivers
3399 * will make derived classes.
3401 struct gl_framebuffer
3403 simple_mtx_t Mutex
; /**< for thread safety */
3405 * If zero, this is a window system framebuffer. If non-zero, this
3406 * is a FBO framebuffer; note that for some devices (i.e. those with
3407 * a natural pixel coordinate system for FBOs that differs from the
3408 * OpenGL/Mesa coordinate system), this means that the viewport,
3409 * polygon face orientation, and polygon stipple will have to be inverted.
3414 GLchar
*Label
; /**< GL_KHR_debug */
3416 GLboolean DeletePending
;
3419 * The framebuffer's visual. Immutable if this is a window system buffer.
3420 * Computed from attachments if user-made FBO.
3422 struct gl_config Visual
;
3425 * Size of frame buffer in pixels. If there are no attachments, then both
3428 GLuint Width
, Height
;
3431 * In the case that the framebuffer has no attachment (i.e.
3432 * GL_ARB_framebuffer_no_attachments) then the geometry of
3433 * the framebuffer is specified by the default values.
3436 GLuint Width
, Height
, Layers
, NumSamples
;
3437 GLboolean FixedSampleLocations
;
3438 /* Derived from NumSamples by the driver so that it can choose a valid
3439 * value for the hardware.
3444 /** \name Drawing bounds (Intersection of buffer size and scissor box)
3445 * The drawing region is given by [_Xmin, _Xmax) x [_Ymin, _Ymax),
3446 * (inclusive for _Xmin and _Ymin while exclusive for _Xmax and _Ymax)
3453 /** \name Derived Z buffer stuff */
3455 GLuint _DepthMax
; /**< Max depth buffer value */
3456 GLfloat _DepthMaxF
; /**< Float max depth buffer value */
3457 GLfloat _MRD
; /**< minimum resolvable difference in Z values */
3460 /** One of the GL_FRAMEBUFFER_(IN)COMPLETE_* tokens */
3463 /** Whether one of Attachment has Type != GL_NONE
3464 * NOTE: the values for Width and Height are set to 0 in case of having
3465 * no attachments, a backend driver supporting the extension
3466 * GL_ARB_framebuffer_no_attachments must check for the flag _HasAttachments
3467 * and if GL_FALSE, must then use the values in DefaultGeometry to initialize
3468 * its viewport, scissor and so on (in particular _Xmin, _Xmax, _Ymin and
3469 * _Ymax do NOT take into account _HasAttachments being false). To get the
3470 * geometry of the framebuffer, the helper functions
3471 * _mesa_geometric_width(),
3472 * _mesa_geometric_height(),
3473 * _mesa_geometric_samples() and
3474 * _mesa_geometric_layers()
3475 * are available that check _HasAttachments.
3477 bool _HasAttachments
;
3479 GLbitfield _IntegerBuffers
; /**< Which color buffers are integer valued */
3481 /* ARB_color_buffer_float */
3482 GLboolean _AllColorBuffersFixedPoint
; /* no integer, no float */
3483 GLboolean _HasSNormOrFloatColorBuffer
;
3486 * The maximum number of layers in the framebuffer, or 0 if the framebuffer
3487 * is not layered. For cube maps and cube map arrays, each cube face
3488 * counts as a layer. As the case for Width, Height a backend driver
3489 * supporting GL_ARB_framebuffer_no_attachments must use DefaultGeometry
3490 * in the case that _HasAttachments is false
3492 GLuint MaxNumLayers
;
3494 /** Array of all renderbuffer attachments, indexed by BUFFER_* tokens. */
3495 struct gl_renderbuffer_attachment Attachment
[BUFFER_COUNT
];
3497 /* In unextended OpenGL these vars are part of the GL_COLOR_BUFFER
3498 * attribute group and GL_PIXEL attribute group, respectively.
3500 GLenum16 ColorDrawBuffer
[MAX_DRAW_BUFFERS
];
3501 GLenum16 ColorReadBuffer
;
3503 /* GL_ARB_sample_locations */
3504 GLfloat
*SampleLocationTable
; /**< If NULL, no table has been specified */
3505 GLboolean ProgrammableSampleLocations
;
3506 GLboolean SampleLocationPixelGrid
;
3508 /** Computed from ColorDraw/ReadBuffer above */
3509 GLuint _NumColorDrawBuffers
;
3510 gl_buffer_index _ColorDrawBufferIndexes
[MAX_DRAW_BUFFERS
];
3511 gl_buffer_index _ColorReadBufferIndex
;
3512 struct gl_renderbuffer
*_ColorDrawBuffers
[MAX_DRAW_BUFFERS
];
3513 struct gl_renderbuffer
*_ColorReadBuffer
;
3515 /* GL_MESA_framebuffer_flip_y */
3518 /** Delete this framebuffer */
3519 void (*Delete
)(struct gl_framebuffer
*fb
);
3524 * Precision info for shader datatypes. See glGetShaderPrecisionFormat().
3528 GLushort RangeMin
; /**< min value exponent */
3529 GLushort RangeMax
; /**< max value exponent */
3530 GLushort Precision
; /**< number of mantissa bits */
3535 * Limits for vertex, geometry and fragment programs/shaders.
3537 struct gl_program_constants
3539 /* logical limits */
3540 GLuint MaxInstructions
;
3541 GLuint MaxAluInstructions
;
3542 GLuint MaxTexInstructions
;
3543 GLuint MaxTexIndirections
;
3546 GLuint MaxAddressRegs
;
3547 GLuint MaxAddressOffset
; /**< [-MaxAddressOffset, MaxAddressOffset-1] */
3548 GLuint MaxParameters
;
3549 GLuint MaxLocalParams
;
3550 GLuint MaxEnvParams
;
3551 /* native/hardware limits */
3552 GLuint MaxNativeInstructions
;
3553 GLuint MaxNativeAluInstructions
;
3554 GLuint MaxNativeTexInstructions
;
3555 GLuint MaxNativeTexIndirections
;
3556 GLuint MaxNativeAttribs
;
3557 GLuint MaxNativeTemps
;
3558 GLuint MaxNativeAddressRegs
;
3559 GLuint MaxNativeParameters
;
3561 GLuint MaxUniformComponents
; /**< Usually == MaxParameters * 4 */
3564 * \name Per-stage input / output limits
3566 * Previous to OpenGL 3.2, the intrastage data limits were advertised with
3567 * a single value: GL_MAX_VARYING_COMPONENTS (GL_MAX_VARYING_VECTORS in
3568 * ES). This is stored as \c gl_constants::MaxVarying.
3570 * Starting with OpenGL 3.2, the limits are advertised with per-stage
3571 * variables. Each stage as a certain number of outputs that it can feed
3572 * to the next stage and a certain number inputs that it can consume from
3573 * the previous stage.
3575 * Vertex shader inputs do not participate this in this accounting.
3576 * These are tracked exclusively by \c gl_program_constants::MaxAttribs.
3578 * Fragment shader outputs do not participate this in this accounting.
3579 * These are tracked exclusively by \c gl_constants::MaxDrawBuffers.
3582 GLuint MaxInputComponents
;
3583 GLuint MaxOutputComponents
;
3586 /* ES 2.0 and GL_ARB_ES2_compatibility */
3587 struct gl_precision LowFloat
, MediumFloat
, HighFloat
;
3588 struct gl_precision LowInt
, MediumInt
, HighInt
;
3589 /* GL_ARB_uniform_buffer_object */
3590 GLuint MaxUniformBlocks
;
3591 uint64_t MaxCombinedUniformComponents
;
3592 GLuint MaxTextureImageUnits
;
3594 /* GL_ARB_shader_atomic_counters */
3595 GLuint MaxAtomicBuffers
;
3596 GLuint MaxAtomicCounters
;
3598 /* GL_ARB_shader_image_load_store */
3599 GLuint MaxImageUniforms
;
3601 /* GL_ARB_shader_storage_buffer_object */
3602 GLuint MaxShaderStorageBlocks
;
3606 * Constants which may be overridden by device driver during context creation
3607 * but are never changed after that.
3611 GLuint MaxTextureMbytes
; /**< Max memory per image, in MB */
3612 GLuint MaxTextureLevels
; /**< Max mipmap levels. */
3613 GLuint Max3DTextureLevels
; /**< Max mipmap levels for 3D textures */
3614 GLuint MaxCubeTextureLevels
; /**< Max mipmap levels for cube textures */
3615 GLuint MaxArrayTextureLayers
; /**< Max layers in array textures */
3616 GLuint MaxTextureRectSize
; /**< Max rectangle texture size, in pixes */
3617 GLuint MaxTextureCoordUnits
;
3618 GLuint MaxCombinedTextureImageUnits
;
3619 GLuint MaxTextureUnits
; /**< = MIN(CoordUnits, FragmentProgram.ImageUnits) */
3620 GLfloat MaxTextureMaxAnisotropy
; /**< GL_EXT_texture_filter_anisotropic */
3621 GLfloat MaxTextureLodBias
; /**< GL_EXT_texture_lod_bias */
3622 GLuint MaxTextureBufferSize
; /**< GL_ARB_texture_buffer_object */
3624 GLuint TextureBufferOffsetAlignment
; /**< GL_ARB_texture_buffer_range */
3626 GLuint MaxArrayLockSize
;
3630 GLfloat MinPointSize
, MaxPointSize
; /**< aliased */
3631 GLfloat MinPointSizeAA
, MaxPointSizeAA
; /**< antialiased */
3632 GLfloat PointSizeGranularity
;
3633 GLfloat MinLineWidth
, MaxLineWidth
; /**< aliased */
3634 GLfloat MinLineWidthAA
, MaxLineWidthAA
; /**< antialiased */
3635 GLfloat LineWidthGranularity
;
3637 GLuint MaxClipPlanes
;
3639 GLfloat MaxShininess
; /**< GL_NV_light_max_exponent */
3640 GLfloat MaxSpotExponent
; /**< GL_NV_light_max_exponent */
3642 GLuint MaxViewportWidth
, MaxViewportHeight
;
3643 GLuint MaxViewports
; /**< GL_ARB_viewport_array */
3644 GLuint ViewportSubpixelBits
; /**< GL_ARB_viewport_array */
3648 } ViewportBounds
; /**< GL_ARB_viewport_array */
3649 GLuint MaxWindowRectangles
; /**< GL_EXT_window_rectangles */
3651 struct gl_program_constants Program
[MESA_SHADER_STAGES
];
3652 GLuint MaxProgramMatrices
;
3653 GLuint MaxProgramMatrixStackDepth
;
3656 GLuint SamplesPassed
;
3659 GLuint PrimitivesGenerated
;
3660 GLuint PrimitivesWritten
;
3661 GLuint VerticesSubmitted
;
3662 GLuint PrimitivesSubmitted
;
3663 GLuint VsInvocations
;
3665 GLuint TessInvocations
;
3666 GLuint GsInvocations
;
3667 GLuint GsPrimitives
;
3668 GLuint FsInvocations
;
3669 GLuint ComputeInvocations
;
3670 GLuint ClInPrimitives
;
3671 GLuint ClOutPrimitives
;
3674 GLuint MaxDrawBuffers
; /**< GL_ARB_draw_buffers */
3676 GLuint MaxColorAttachments
; /**< GL_EXT_framebuffer_object */
3677 GLuint MaxRenderbufferSize
; /**< GL_EXT_framebuffer_object */
3678 GLuint MaxSamples
; /**< GL_ARB_framebuffer_object */
3681 * GL_ARB_framebuffer_no_attachments
3683 GLuint MaxFramebufferWidth
;
3684 GLuint MaxFramebufferHeight
;
3685 GLuint MaxFramebufferLayers
;
3686 GLuint MaxFramebufferSamples
;
3688 /** Number of varying vectors between any two shader stages. */
3692 * GL_ARB_uniform_buffer_object
3694 GLuint MaxCombinedUniformBlocks
;
3695 GLuint MaxUniformBufferBindings
;
3696 GLuint MaxUniformBlockSize
;
3697 GLuint UniformBufferOffsetAlignment
;
3701 * GL_ARB_shader_storage_buffer_object
3703 GLuint MaxCombinedShaderStorageBlocks
;
3704 GLuint MaxShaderStorageBufferBindings
;
3705 GLuint MaxShaderStorageBlockSize
;
3706 GLuint ShaderStorageBufferOffsetAlignment
;
3710 * GL_ARB_explicit_uniform_location
3712 GLuint MaxUserAssignableUniformLocations
;
3714 /** geometry shader */
3715 GLuint MaxGeometryOutputVertices
;
3716 GLuint MaxGeometryTotalOutputComponents
;
3717 GLuint MaxGeometryShaderInvocations
;
3719 GLuint GLSLVersion
; /**< Desktop GLSL version supported (ex: 120 = 1.20) */
3720 GLuint GLSLVersionCompat
; /**< Desktop compat GLSL version supported */
3723 * Changes default GLSL extension behavior from "error" to "warn". It's out
3724 * of spec, but it can make some apps work that otherwise wouldn't.
3726 GLboolean ForceGLSLExtensionsWarn
;
3729 * If non-zero, forces GLSL shaders to behave as if they began
3730 * with "#version ForceGLSLVersion".
3732 GLuint ForceGLSLVersion
;
3735 * Allow GLSL #extension directives in the middle of shaders.
3737 GLboolean AllowGLSLExtensionDirectiveMidShader
;
3740 * Allow builtins as part of constant expressions. This was not allowed
3741 * until GLSL 1.20 this allows it everywhere.
3743 GLboolean AllowGLSLBuiltinConstantExpression
;
3746 * Allow some relaxation of GLSL ES shader restrictions. This encompasses
3747 * a number of relaxations to the ES shader rules.
3749 GLboolean AllowGLSLRelaxedES
;
3752 * Allow GLSL built-in variables to be redeclared verbatim
3754 GLboolean AllowGLSLBuiltinVariableRedeclaration
;
3757 * Allow GLSL interpolation qualifier mismatch across shader stages.
3759 GLboolean AllowGLSLCrossStageInterpolationMismatch
;
3762 * Allow creating a higher compat profile (version 3.1+) for apps that
3763 * request it. Be careful when adding that driconf option because some
3764 * features are unimplemented and might not work correctly.
3766 GLboolean AllowHigherCompatVersion
;
3769 * Force computing the absolute value for sqrt() and inversesqrt() to follow
3770 * D3D9 when apps rely on this behaviour.
3772 GLboolean ForceGLSLAbsSqrt
;
3775 * Force uninitialized variables to default to zero.
3777 GLboolean GLSLZeroInit
;
3780 * Does the driver support real 32-bit integers? (Otherwise, integers are
3781 * simulated via floats.)
3783 GLboolean NativeIntegers
;
3786 * Does VertexID count from zero or from base vertex?
3789 * If desktop GLSL 1.30 or GLSL ES 3.00 are not supported, this field is
3790 * ignored and need not be set.
3792 bool VertexID_is_zero_based
;
3795 * If the driver supports real 32-bit integers, what integer value should be
3796 * used for boolean true in uniform uploads? (Usually 1 or ~0.)
3798 GLuint UniformBooleanTrue
;
3801 * Maximum amount of time, measured in nanseconds, that the server can wait.
3803 GLuint64 MaxServerWaitTimeout
;
3805 /** GL_EXT_provoking_vertex */
3806 GLboolean QuadsFollowProvokingVertexConvention
;
3808 /** GL_ARB_viewport_array */
3809 GLenum16 LayerAndVPIndexProvokingVertex
;
3811 /** OpenGL version 3.0 */
3812 GLbitfield ContextFlags
; /**< Ex: GL_CONTEXT_FLAG_FORWARD_COMPATIBLE_BIT */
3814 /** OpenGL version 3.2 */
3815 GLbitfield ProfileMask
; /**< Mask of CONTEXT_x_PROFILE_BIT */
3817 /** OpenGL version 4.4 */
3818 GLuint MaxVertexAttribStride
;
3820 /** GL_EXT_transform_feedback */
3821 GLuint MaxTransformFeedbackBuffers
;
3822 GLuint MaxTransformFeedbackSeparateComponents
;
3823 GLuint MaxTransformFeedbackInterleavedComponents
;
3824 GLuint MaxVertexStreams
;
3826 /** GL_EXT_gpu_shader4 */
3827 GLint MinProgramTexelOffset
, MaxProgramTexelOffset
;
3829 /** GL_ARB_texture_gather */
3830 GLuint MinProgramTextureGatherOffset
;
3831 GLuint MaxProgramTextureGatherOffset
;
3832 GLuint MaxProgramTextureGatherComponents
;
3834 /* GL_ARB_robustness */
3835 GLenum16 ResetStrategy
;
3837 /* GL_KHR_robustness */
3838 GLboolean RobustAccess
;
3840 /* GL_ARB_blend_func_extended */
3841 GLuint MaxDualSourceDrawBuffers
;
3844 * Whether the implementation strips out and ignores texture borders.
3846 * Many GPU hardware implementations don't support rendering with texture
3847 * borders and mipmapped textures. (Note: not static border color, but the
3848 * old 1-pixel border around each edge). Implementations then have to do
3849 * slow fallbacks to be correct, or just ignore the border and be fast but
3850 * wrong. Setting the flag strips the border off of TexImage calls,
3851 * providing "fast but wrong" at significantly reduced driver complexity.
3853 * Texture borders are deprecated in GL 3.0.
3855 GLboolean StripTextureBorder
;
3858 * For drivers which can do a better job at eliminating unused uniforms
3859 * than the GLSL compiler.
3861 * XXX Remove these as soon as a better solution is available.
3863 GLboolean GLSLSkipStrictMaxUniformLimitCheck
;
3865 /** Whether gl_FragCoord and gl_FrontFacing are system values. */
3866 bool GLSLFragCoordIsSysVal
;
3867 bool GLSLFrontFacingIsSysVal
;
3870 * Run the minimum amount of GLSL optimizations to be able to link
3871 * shaders optimally (eliminate dead varyings and uniforms) and just do
3872 * all the necessary lowering.
3874 bool GLSLOptimizeConservatively
;
3877 * True if gl_TessLevelInner/Outer[] in the TES should be inputs
3878 * (otherwise, they're system values).
3880 bool GLSLTessLevelsAsInputs
;
3883 * Always use the GetTransformFeedbackVertexCount() driver hook, rather
3884 * than passing the transform feedback object to the drawing function.
3886 GLboolean AlwaysUseGetTransformFeedbackVertexCount
;
3888 /** GL_ARB_map_buffer_alignment */
3889 GLuint MinMapBufferAlignment
;
3892 * Disable varying packing. This is out of spec, but potentially useful
3893 * for older platforms that supports a limited number of texture
3894 * indirections--on these platforms, unpacking the varyings in the fragment
3895 * shader increases the number of texture indirections by 1, which might
3896 * make some shaders not executable at all.
3898 * Drivers that support transform feedback must set this value to GL_FALSE.
3900 GLboolean DisableVaryingPacking
;
3903 * UBOs and SSBOs can be packed tightly by the OpenGL implementation when
3904 * layout is set as shared (the default) or packed. However most Mesa drivers
3905 * just use STD140 for these layouts. This flag allows drivers to use STD430
3906 * for packed and shared layouts which allows arrays to be packed more
3909 bool UseSTD430AsDefaultPacking
;
3912 * Should meaningful names be generated for compiler temporary variables?
3914 * Generally, it is not useful to have the compiler generate "meaningful"
3915 * names for temporary variables that it creates. This can, however, be a
3916 * useful debugging aid. In Mesa debug builds or release builds when
3917 * MESA_GLSL is set at run-time, meaningful names will be generated.
3918 * Drivers can also force names to be generated by setting this field.
3919 * For example, the i965 driver may set it when INTEL_DEBUG=vs (to dump
3920 * vertex shader assembly) is set at run-time.
3922 bool GenerateTemporaryNames
;
3925 * Maximum value supported for an index in DrawElements and friends.
3927 * This must be at least (1ull<<24)-1. The default value is
3930 * \since ES 3.0 or GL_ARB_ES3_compatibility
3931 * \sa _mesa_init_constants
3933 GLuint64 MaxElementIndex
;
3936 * Disable interpretation of line continuations (lines ending with a
3937 * backslash character ('\') in GLSL source.
3939 GLboolean DisableGLSLLineContinuations
;
3941 /** GL_ARB_texture_multisample */
3942 GLint MaxColorTextureSamples
;
3943 GLint MaxDepthTextureSamples
;
3944 GLint MaxIntegerSamples
;
3946 /** GL_AMD_framebuffer_multisample_advanced */
3947 GLint MaxColorFramebufferSamples
;
3948 GLint MaxColorFramebufferStorageSamples
;
3949 GLint MaxDepthStencilFramebufferSamples
;
3951 /* An array of supported MSAA modes allowing different sample
3952 * counts per attachment type.
3955 GLint NumColorSamples
;
3956 GLint NumColorStorageSamples
;
3957 GLint NumDepthStencilSamples
;
3958 } SupportedMultisampleModes
[40];
3959 GLint NumSupportedMultisampleModes
;
3962 * GL_EXT_texture_multisample_blit_scaled implementation assumes that
3963 * samples are laid out in a rectangular grid roughly corresponding to
3964 * sample locations within a pixel. Below SampleMap{2,4,8}x variables
3965 * are used to map indices of rectangular grid to sample numbers within
3966 * a pixel. This mapping of indices to sample numbers must be initialized
3967 * by the driver for the target hardware. For example, if we have the 8X
3968 * MSAA sample number layout (sample positions) for XYZ hardware:
3970 * sample indices layout sample number layout
3971 * --------- ---------
3972 * | 0 | 1 | | a | b |
3973 * --------- ---------
3974 * | 2 | 3 | | c | d |
3975 * --------- ---------
3976 * | 4 | 5 | | e | f |
3977 * --------- ---------
3978 * | 6 | 7 | | g | h |
3979 * --------- ---------
3981 * Where a,b,c,d,e,f,g,h are integers between [0-7].
3983 * Then, initialize the SampleMap8x variable for XYZ hardware as shown
3985 * SampleMap8x = {a, b, c, d, e, f, g, h};
3987 * Follow the logic for sample counts 2-8.
3989 * For 16x the sample indices layout as a 4x4 grid as follows:
4001 uint8_t SampleMap2x
[2];
4002 uint8_t SampleMap4x
[4];
4003 uint8_t SampleMap8x
[8];
4004 uint8_t SampleMap16x
[16];
4006 /** GL_ARB_shader_atomic_counters */
4007 GLuint MaxAtomicBufferBindings
;
4008 GLuint MaxAtomicBufferSize
;
4009 GLuint MaxCombinedAtomicBuffers
;
4010 GLuint MaxCombinedAtomicCounters
;
4012 /** GL_ARB_vertex_attrib_binding */
4013 GLint MaxVertexAttribRelativeOffset
;
4014 GLint MaxVertexAttribBindings
;
4016 /* GL_ARB_shader_image_load_store */
4017 GLuint MaxImageUnits
;
4018 GLuint MaxCombinedShaderOutputResources
;
4019 GLuint MaxImageSamples
;
4020 GLuint MaxCombinedImageUniforms
;
4022 /** GL_ARB_compute_shader */
4023 GLuint MaxComputeWorkGroupCount
[3]; /* Array of x, y, z dimensions */
4024 GLuint MaxComputeWorkGroupSize
[3]; /* Array of x, y, z dimensions */
4025 GLuint MaxComputeWorkGroupInvocations
;
4026 GLuint MaxComputeSharedMemorySize
;
4028 /** GL_ARB_compute_variable_group_size */
4029 GLuint MaxComputeVariableGroupSize
[3]; /* Array of x, y, z dimensions */
4030 GLuint MaxComputeVariableGroupInvocations
;
4032 /** GL_ARB_gpu_shader5 */
4033 GLfloat MinFragmentInterpolationOffset
;
4034 GLfloat MaxFragmentInterpolationOffset
;
4036 GLboolean FakeSWMSAA
;
4038 /** GL_KHR_context_flush_control */
4039 GLenum16 ContextReleaseBehavior
;
4041 struct gl_shader_compiler_options ShaderCompilerOptions
[MESA_SHADER_STAGES
];
4043 /** GL_ARB_tessellation_shader */
4044 GLuint MaxPatchVertices
;
4045 GLuint MaxTessGenLevel
;
4046 GLuint MaxTessPatchComponents
;
4047 GLuint MaxTessControlTotalOutputComponents
;
4048 bool LowerTessLevel
; /**< Lower gl_TessLevel* from float[n] to vecn? */
4049 bool PrimitiveRestartForPatches
;
4050 bool LowerCsDerivedVariables
; /**< Lower gl_GlobalInvocationID and
4051 * gl_LocalInvocationIndex based on
4052 * other builtin variables. */
4054 /** GL_OES_primitive_bounding_box */
4055 bool NoPrimitiveBoundingBoxOutput
;
4057 /** GL_ARB_sparse_buffer */
4058 GLuint SparseBufferPageSize
;
4060 /** Used as an input for sha1 generation in the on-disk shader cache */
4061 unsigned char *dri_config_options_sha1
;
4063 /** When drivers are OK with mapped buffers during draw and other calls. */
4064 bool AllowMappedBuffersDuringExecution
;
4066 /** GL_ARB_get_program_binary */
4067 GLuint NumProgramBinaryFormats
;
4069 /** GL_NV_conservative_raster */
4070 GLuint MaxSubpixelPrecisionBiasBits
;
4072 /** GL_NV_conservative_raster_dilate */
4073 GLfloat ConservativeRasterDilateRange
[2];
4074 GLfloat ConservativeRasterDilateGranularity
;
4076 /** Is the drivers uniform storage packed or padded to 16 bytes. */
4077 bool PackedDriverUniformStorage
;
4079 /** GL_ARB_gl_spirv */
4080 struct spirv_supported_capabilities SpirVCapabilities
;
4085 * Enable flag for each OpenGL extension. Different device drivers will
4086 * enable different extensions at runtime.
4088 struct gl_extensions
4090 GLboolean dummy
; /* don't remove this! */
4091 GLboolean dummy_true
; /* Set true by _mesa_init_extensions(). */
4092 GLboolean dummy_false
; /* Set false by _mesa_init_extensions(). */
4093 GLboolean ANGLE_texture_compression_dxt
;
4094 GLboolean ARB_ES2_compatibility
;
4095 GLboolean ARB_ES3_compatibility
;
4096 GLboolean ARB_ES3_1_compatibility
;
4097 GLboolean ARB_ES3_2_compatibility
;
4098 GLboolean ARB_arrays_of_arrays
;
4099 GLboolean ARB_base_instance
;
4100 GLboolean ARB_bindless_texture
;
4101 GLboolean ARB_blend_func_extended
;
4102 GLboolean ARB_buffer_storage
;
4103 GLboolean ARB_clear_texture
;
4104 GLboolean ARB_clip_control
;
4105 GLboolean ARB_color_buffer_float
;
4106 GLboolean ARB_compatibility
;
4107 GLboolean ARB_compute_shader
;
4108 GLboolean ARB_compute_variable_group_size
;
4109 GLboolean ARB_conditional_render_inverted
;
4110 GLboolean ARB_conservative_depth
;
4111 GLboolean ARB_copy_image
;
4112 GLboolean ARB_cull_distance
;
4113 GLboolean ARB_depth_buffer_float
;
4114 GLboolean ARB_depth_clamp
;
4115 GLboolean ARB_depth_texture
;
4116 GLboolean ARB_derivative_control
;
4117 GLboolean ARB_draw_buffers_blend
;
4118 GLboolean ARB_draw_elements_base_vertex
;
4119 GLboolean ARB_draw_indirect
;
4120 GLboolean ARB_draw_instanced
;
4121 GLboolean ARB_fragment_coord_conventions
;
4122 GLboolean ARB_fragment_layer_viewport
;
4123 GLboolean ARB_fragment_program
;
4124 GLboolean ARB_fragment_program_shadow
;
4125 GLboolean ARB_fragment_shader
;
4126 GLboolean ARB_framebuffer_no_attachments
;
4127 GLboolean ARB_framebuffer_object
;
4128 GLboolean ARB_fragment_shader_interlock
;
4129 GLboolean ARB_enhanced_layouts
;
4130 GLboolean ARB_explicit_attrib_location
;
4131 GLboolean ARB_explicit_uniform_location
;
4132 GLboolean ARB_gl_spirv
;
4133 GLboolean ARB_gpu_shader5
;
4134 GLboolean ARB_gpu_shader_fp64
;
4135 GLboolean ARB_gpu_shader_int64
;
4136 GLboolean ARB_half_float_vertex
;
4137 GLboolean ARB_indirect_parameters
;
4138 GLboolean ARB_instanced_arrays
;
4139 GLboolean ARB_internalformat_query
;
4140 GLboolean ARB_internalformat_query2
;
4141 GLboolean ARB_map_buffer_range
;
4142 GLboolean ARB_occlusion_query
;
4143 GLboolean ARB_occlusion_query2
;
4144 GLboolean ARB_pipeline_statistics_query
;
4145 GLboolean ARB_point_sprite
;
4146 GLboolean ARB_polygon_offset_clamp
;
4147 GLboolean ARB_post_depth_coverage
;
4148 GLboolean ARB_query_buffer_object
;
4149 GLboolean ARB_robust_buffer_access_behavior
;
4150 GLboolean ARB_sample_locations
;
4151 GLboolean ARB_sample_shading
;
4152 GLboolean ARB_seamless_cube_map
;
4153 GLboolean ARB_shader_atomic_counter_ops
;
4154 GLboolean ARB_shader_atomic_counters
;
4155 GLboolean ARB_shader_ballot
;
4156 GLboolean ARB_shader_bit_encoding
;
4157 GLboolean ARB_shader_clock
;
4158 GLboolean ARB_shader_draw_parameters
;
4159 GLboolean ARB_shader_group_vote
;
4160 GLboolean ARB_shader_image_load_store
;
4161 GLboolean ARB_shader_image_size
;
4162 GLboolean ARB_shader_precision
;
4163 GLboolean ARB_shader_stencil_export
;
4164 GLboolean ARB_shader_storage_buffer_object
;
4165 GLboolean ARB_shader_texture_image_samples
;
4166 GLboolean ARB_shader_texture_lod
;
4167 GLboolean ARB_shader_viewport_layer_array
;
4168 GLboolean ARB_shading_language_packing
;
4169 GLboolean ARB_shading_language_420pack
;
4170 GLboolean ARB_shadow
;
4171 GLboolean ARB_sparse_buffer
;
4172 GLboolean ARB_stencil_texturing
;
4174 GLboolean ARB_tessellation_shader
;
4175 GLboolean ARB_texture_border_clamp
;
4176 GLboolean ARB_texture_buffer_object
;
4177 GLboolean ARB_texture_buffer_object_rgb32
;
4178 GLboolean ARB_texture_buffer_range
;
4179 GLboolean ARB_texture_compression_bptc
;
4180 GLboolean ARB_texture_compression_rgtc
;
4181 GLboolean ARB_texture_cube_map
;
4182 GLboolean ARB_texture_cube_map_array
;
4183 GLboolean ARB_texture_env_combine
;
4184 GLboolean ARB_texture_env_crossbar
;
4185 GLboolean ARB_texture_env_dot3
;
4186 GLboolean ARB_texture_filter_anisotropic
;
4187 GLboolean ARB_texture_float
;
4188 GLboolean ARB_texture_gather
;
4189 GLboolean ARB_texture_mirror_clamp_to_edge
;
4190 GLboolean ARB_texture_multisample
;
4191 GLboolean ARB_texture_non_power_of_two
;
4192 GLboolean ARB_texture_stencil8
;
4193 GLboolean ARB_texture_query_levels
;
4194 GLboolean ARB_texture_query_lod
;
4195 GLboolean ARB_texture_rg
;
4196 GLboolean ARB_texture_rgb10_a2ui
;
4197 GLboolean ARB_texture_view
;
4198 GLboolean ARB_timer_query
;
4199 GLboolean ARB_transform_feedback2
;
4200 GLboolean ARB_transform_feedback3
;
4201 GLboolean ARB_transform_feedback_instanced
;
4202 GLboolean ARB_transform_feedback_overflow_query
;
4203 GLboolean ARB_uniform_buffer_object
;
4204 GLboolean ARB_vertex_attrib_64bit
;
4205 GLboolean ARB_vertex_program
;
4206 GLboolean ARB_vertex_shader
;
4207 GLboolean ARB_vertex_type_10f_11f_11f_rev
;
4208 GLboolean ARB_vertex_type_2_10_10_10_rev
;
4209 GLboolean ARB_viewport_array
;
4210 GLboolean EXT_blend_color
;
4211 GLboolean EXT_blend_equation_separate
;
4212 GLboolean EXT_blend_func_separate
;
4213 GLboolean EXT_blend_minmax
;
4214 GLboolean EXT_depth_bounds_test
;
4215 GLboolean EXT_disjoint_timer_query
;
4216 GLboolean EXT_draw_buffers2
;
4217 GLboolean EXT_framebuffer_multisample
;
4218 GLboolean EXT_framebuffer_multisample_blit_scaled
;
4219 GLboolean EXT_framebuffer_sRGB
;
4220 GLboolean EXT_gpu_program_parameters
;
4221 GLboolean EXT_gpu_shader4
;
4222 GLboolean EXT_memory_object
;
4223 GLboolean EXT_memory_object_fd
;
4224 GLboolean EXT_packed_float
;
4225 GLboolean EXT_pixel_buffer_object
;
4226 GLboolean EXT_point_parameters
;
4227 GLboolean EXT_provoking_vertex
;
4228 GLboolean EXT_render_snorm
;
4229 GLboolean EXT_semaphore
;
4230 GLboolean EXT_semaphore_fd
;
4231 GLboolean EXT_shader_integer_mix
;
4232 GLboolean EXT_shader_samples_identical
;
4233 GLboolean EXT_stencil_two_side
;
4234 GLboolean EXT_texture_array
;
4235 GLboolean EXT_texture_compression_latc
;
4236 GLboolean EXT_texture_compression_s3tc
;
4237 GLboolean EXT_texture_env_dot3
;
4238 GLboolean EXT_texture_filter_anisotropic
;
4239 GLboolean EXT_texture_integer
;
4240 GLboolean EXT_texture_mirror_clamp
;
4241 GLboolean EXT_texture_shared_exponent
;
4242 GLboolean EXT_texture_snorm
;
4243 GLboolean EXT_texture_sRGB
;
4244 GLboolean EXT_texture_sRGB_decode
;
4245 GLboolean EXT_texture_swizzle
;
4246 GLboolean EXT_texture_type_2_10_10_10_REV
;
4247 GLboolean EXT_transform_feedback
;
4248 GLboolean EXT_timer_query
;
4249 GLboolean EXT_vertex_array_bgra
;
4250 GLboolean EXT_window_rectangles
;
4251 GLboolean OES_copy_image
;
4252 GLboolean OES_primitive_bounding_box
;
4253 GLboolean OES_sample_variables
;
4254 GLboolean OES_standard_derivatives
;
4255 GLboolean OES_texture_buffer
;
4256 GLboolean OES_texture_cube_map_array
;
4257 GLboolean OES_texture_view
;
4258 GLboolean OES_viewport_array
;
4259 /* vendor extensions */
4260 GLboolean AMD_framebuffer_multisample_advanced
;
4261 GLboolean AMD_depth_clamp_separate
;
4262 GLboolean AMD_performance_monitor
;
4263 GLboolean AMD_pinned_memory
;
4264 GLboolean AMD_seamless_cubemap_per_texture
;
4265 GLboolean AMD_vertex_shader_layer
;
4266 GLboolean AMD_vertex_shader_viewport_index
;
4267 GLboolean ANDROID_extension_pack_es31a
;
4268 GLboolean APPLE_object_purgeable
;
4269 GLboolean ATI_meminfo
;
4270 GLboolean ATI_texture_compression_3dc
;
4271 GLboolean ATI_texture_mirror_once
;
4272 GLboolean ATI_texture_env_combine3
;
4273 GLboolean ATI_fragment_shader
;
4274 GLboolean GREMEDY_string_marker
;
4275 GLboolean INTEL_conservative_rasterization
;
4276 GLboolean INTEL_fragment_shader_ordering
;
4277 GLboolean INTEL_performance_query
;
4278 GLboolean INTEL_shader_atomic_float_minmax
;
4279 GLboolean KHR_blend_equation_advanced
;
4280 GLboolean KHR_blend_equation_advanced_coherent
;
4281 GLboolean KHR_robustness
;
4282 GLboolean KHR_texture_compression_astc_hdr
;
4283 GLboolean KHR_texture_compression_astc_ldr
;
4284 GLboolean KHR_texture_compression_astc_sliced_3d
;
4285 GLboolean MESA_framebuffer_flip_y
;
4286 GLboolean MESA_tile_raster_order
;
4287 GLboolean MESA_pack_invert
;
4288 GLboolean EXT_shader_framebuffer_fetch
;
4289 GLboolean EXT_shader_framebuffer_fetch_non_coherent
;
4290 GLboolean MESA_shader_integer_functions
;
4291 GLboolean MESA_ycbcr_texture
;
4292 GLboolean NV_conditional_render
;
4293 GLboolean NV_fill_rectangle
;
4294 GLboolean NV_fog_distance
;
4295 GLboolean NV_point_sprite
;
4296 GLboolean NV_primitive_restart
;
4297 GLboolean NV_shader_atomic_float
;
4298 GLboolean NV_texture_barrier
;
4299 GLboolean NV_texture_env_combine4
;
4300 GLboolean NV_texture_rectangle
;
4301 GLboolean NV_vdpau_interop
;
4302 GLboolean NV_conservative_raster
;
4303 GLboolean NV_conservative_raster_dilate
;
4304 GLboolean NV_conservative_raster_pre_snap_triangles
;
4305 GLboolean NV_conservative_raster_pre_snap
;
4306 GLboolean NVX_gpu_memory_info
;
4307 GLboolean TDFX_texture_compression_FXT1
;
4308 GLboolean OES_EGL_image
;
4309 GLboolean OES_draw_texture
;
4310 GLboolean OES_depth_texture_cube_map
;
4311 GLboolean OES_EGL_image_external
;
4312 GLboolean OES_texture_float
;
4313 GLboolean OES_texture_float_linear
;
4314 GLboolean OES_texture_half_float
;
4315 GLboolean OES_texture_half_float_linear
;
4316 GLboolean OES_compressed_ETC1_RGB8_texture
;
4317 GLboolean OES_geometry_shader
;
4318 GLboolean OES_texture_compression_astc
;
4319 GLboolean extension_sentinel
;
4320 /** The extension string */
4321 const GLubyte
*String
;
4322 /** Number of supported extensions */
4325 * The context version which extension helper functions compare against.
4326 * By default, the value is equal to ctx->Version. This changes to ~0
4327 * while meta is in progress.
4331 * Force-enabled, yet unrecognized, extensions.
4332 * See _mesa_one_time_init_extension_overrides()
4334 #define MAX_UNRECOGNIZED_EXTENSIONS 16
4335 const char *unrecognized_extensions
[MAX_UNRECOGNIZED_EXTENSIONS
];
4340 * A stack of matrices (projection, modelview, color, texture, etc).
4342 struct gl_matrix_stack
4344 GLmatrix
*Top
; /**< points into Stack */
4345 GLmatrix
*Stack
; /**< array [MaxDepth] of GLmatrix */
4346 unsigned StackSize
; /**< Number of elements in Stack */
4347 GLuint Depth
; /**< 0 <= Depth < MaxDepth */
4348 GLuint MaxDepth
; /**< size of Stack[] array */
4349 GLuint DirtyFlag
; /**< _NEW_MODELVIEW or _NEW_PROJECTION, for example */
4354 * \name Bits for image transfer operations
4355 * \sa __struct gl_contextRec::ImageTransferState.
4358 #define IMAGE_SCALE_BIAS_BIT 0x1
4359 #define IMAGE_SHIFT_OFFSET_BIT 0x2
4360 #define IMAGE_MAP_COLOR_BIT 0x4
4361 #define IMAGE_CLAMP_BIT 0x800
4364 /** Pixel Transfer ops */
4365 #define IMAGE_BITS (IMAGE_SCALE_BIAS_BIT | \
4366 IMAGE_SHIFT_OFFSET_BIT | \
4367 IMAGE_MAP_COLOR_BIT)
4371 * \name Bits to indicate what state has changed.
4374 #define _NEW_MODELVIEW (1u << 0) /**< gl_context::ModelView */
4375 #define _NEW_PROJECTION (1u << 1) /**< gl_context::Projection */
4376 #define _NEW_TEXTURE_MATRIX (1u << 2) /**< gl_context::TextureMatrix */
4377 #define _NEW_COLOR (1u << 3) /**< gl_context::Color */
4378 #define _NEW_DEPTH (1u << 4) /**< gl_context::Depth */
4379 #define _NEW_EVAL (1u << 5) /**< gl_context::Eval, EvalMap */
4380 #define _NEW_FOG (1u << 6) /**< gl_context::Fog */
4381 #define _NEW_HINT (1u << 7) /**< gl_context::Hint */
4382 #define _NEW_LIGHT (1u << 8) /**< gl_context::Light */
4383 #define _NEW_LINE (1u << 9) /**< gl_context::Line */
4384 #define _NEW_PIXEL (1u << 10) /**< gl_context::Pixel */
4385 #define _NEW_POINT (1u << 11) /**< gl_context::Point */
4386 #define _NEW_POLYGON (1u << 12) /**< gl_context::Polygon */
4387 #define _NEW_POLYGONSTIPPLE (1u << 13) /**< gl_context::PolygonStipple */
4388 #define _NEW_SCISSOR (1u << 14) /**< gl_context::Scissor */
4389 #define _NEW_STENCIL (1u << 15) /**< gl_context::Stencil */
4390 #define _NEW_TEXTURE_OBJECT (1u << 16) /**< gl_context::Texture (bindings only) */
4391 #define _NEW_TRANSFORM (1u << 17) /**< gl_context::Transform */
4392 #define _NEW_VIEWPORT (1u << 18) /**< gl_context::Viewport */
4393 #define _NEW_TEXTURE_STATE (1u << 19) /**< gl_context::Texture (states only) */
4394 #define _NEW_ARRAY (1u << 20) /**< gl_context::Array */
4395 #define _NEW_RENDERMODE (1u << 21) /**< gl_context::RenderMode, etc */
4396 #define _NEW_BUFFERS (1u << 22) /**< gl_context::Visual, DrawBuffer, */
4397 #define _NEW_CURRENT_ATTRIB (1u << 23) /**< gl_context::Current */
4398 #define _NEW_MULTISAMPLE (1u << 24) /**< gl_context::Multisample */
4399 #define _NEW_TRACK_MATRIX (1u << 25) /**< gl_context::VertexProgram */
4400 #define _NEW_PROGRAM (1u << 26) /**< New program/shader state */
4401 #define _NEW_PROGRAM_CONSTANTS (1u << 27)
4403 #define _NEW_FRAG_CLAMP (1u << 29)
4404 /* gap, re-use for core Mesa state only; use ctx->DriverFlags otherwise */
4405 #define _NEW_VARYING_VP_INPUTS (1u << 31) /**< gl_context::varying_vp_inputs */
4411 * Composite state flags
4414 #define _NEW_TEXTURE (_NEW_TEXTURE_OBJECT | _NEW_TEXTURE_STATE)
4416 #define _MESA_NEW_NEED_EYE_COORDS (_NEW_LIGHT | \
4417 _NEW_TEXTURE_STATE | \
4422 #define _MESA_NEW_SEPARATE_SPECULAR (_NEW_LIGHT | \
4432 /* This has to be included here. */
4436 /** Opaque declaration of display list payload data type */
4437 union gl_dlist_node
;
4441 * Per-display list information.
4443 struct gl_display_list
4446 GLbitfield Flags
; /**< DLIST_x flags */
4447 GLchar
*Label
; /**< GL_KHR_debug */
4448 /** The dlist commands are in a linked list of nodes */
4449 union gl_dlist_node
*Head
;
4454 * State used during display list compilation and execution.
4456 struct gl_dlist_state
4458 struct gl_display_list
*CurrentList
; /**< List currently being compiled */
4459 union gl_dlist_node
*CurrentBlock
; /**< Pointer to current block of nodes */
4460 GLuint CurrentPos
; /**< Index into current block of nodes */
4461 GLuint CallDepth
; /**< Current recursion calling depth */
4463 GLvertexformat ListVtxfmt
;
4465 GLubyte ActiveAttribSize
[VERT_ATTRIB_MAX
];
4466 GLfloat CurrentAttrib
[VERT_ATTRIB_MAX
][8];
4468 GLubyte ActiveMaterialSize
[MAT_ATTRIB_MAX
];
4469 GLfloat CurrentMaterial
[MAT_ATTRIB_MAX
][4];
4472 /* State known to have been set by the currently-compiling display
4473 * list. Used to eliminate some redundant state changes.
4475 GLenum16 ShadeModel
;
4480 * Driver-specific state flags.
4482 * These are or'd with gl_context::NewDriverState to notify a driver about
4483 * a state change. The driver sets the flags at context creation and
4484 * the meaning of the bits set is opaque to core Mesa.
4486 struct gl_driver_flags
4488 /** gl_context::Array::_DrawArrays (vertex array state) */
4491 /** gl_context::TransformFeedback::CurrentObject */
4492 uint64_t NewTransformFeedback
;
4494 /** gl_context::TransformFeedback::CurrentObject::shader_program */
4495 uint64_t NewTransformFeedbackProg
;
4497 /** gl_context::RasterDiscard */
4498 uint64_t NewRasterizerDiscard
;
4500 /** gl_context::TileRasterOrder* */
4501 uint64_t NewTileRasterOrder
;
4504 * gl_context::UniformBufferBindings
4505 * gl_shader_program::UniformBlocks
4507 uint64_t NewUniformBuffer
;
4510 * gl_context::ShaderStorageBufferBindings
4511 * gl_shader_program::ShaderStorageBlocks
4513 uint64_t NewShaderStorageBuffer
;
4515 uint64_t NewTextureBuffer
;
4518 * gl_context::AtomicBufferBindings
4520 uint64_t NewAtomicBuffer
;
4523 * gl_context::ImageUnits
4525 uint64_t NewImageUnits
;
4528 * gl_context::TessCtrlProgram::patch_default_*
4530 uint64_t NewDefaultTessLevels
;
4533 * gl_context::IntelConservativeRasterization
4535 uint64_t NewIntelConservativeRasterization
;
4538 * gl_context::NvConservativeRasterization
4540 uint64_t NewNvConservativeRasterization
;
4543 * gl_context::ConservativeRasterMode/ConservativeRasterDilate
4544 * gl_context::SubpixelPrecisionBias
4546 uint64_t NewNvConservativeRasterizationParams
;
4549 * gl_context::Scissor::WindowRects
4551 uint64_t NewWindowRectangles
;
4553 /** gl_context::Color::sRGBEnabled */
4554 uint64_t NewFramebufferSRGB
;
4556 /** gl_context::Scissor::EnableFlags */
4557 uint64_t NewScissorTest
;
4559 /** gl_context::Scissor::ScissorArray */
4560 uint64_t NewScissorRect
;
4562 /** gl_context::Color::Alpha* */
4563 uint64_t NewAlphaTest
;
4565 /** gl_context::Color::Blend/Dither */
4568 /** gl_context::Color::BlendColor */
4569 uint64_t NewBlendColor
;
4571 /** gl_context::Color::Color/Index */
4572 uint64_t NewColorMask
;
4574 /** gl_context::Depth */
4577 /** gl_context::Color::LogicOp/ColorLogicOp/IndexLogicOp */
4578 uint64_t NewLogicOp
;
4580 /** gl_context::Multisample::Enabled */
4581 uint64_t NewMultisampleEnable
;
4583 /** gl_context::Multisample::SampleAlphaTo* */
4584 uint64_t NewSampleAlphaToXEnable
;
4586 /** gl_context::Multisample::SampleCoverage/SampleMaskValue */
4587 uint64_t NewSampleMask
;
4589 /** gl_context::Multisample::(Min)SampleShading */
4590 uint64_t NewSampleShading
;
4592 /** gl_context::Stencil */
4593 uint64_t NewStencil
;
4595 /** gl_context::Transform::ClipOrigin/ClipDepthMode */
4596 uint64_t NewClipControl
;
4598 /** gl_context::Transform::EyeUserPlane */
4599 uint64_t NewClipPlane
;
4601 /** gl_context::Transform::ClipPlanesEnabled */
4602 uint64_t NewClipPlaneEnable
;
4604 /** gl_context::Transform::DepthClamp */
4605 uint64_t NewDepthClamp
;
4607 /** gl_context::Line */
4608 uint64_t NewLineState
;
4610 /** gl_context::Polygon */
4611 uint64_t NewPolygonState
;
4613 /** gl_context::PolygonStipple */
4614 uint64_t NewPolygonStipple
;
4616 /** gl_context::ViewportArray */
4617 uint64_t NewViewport
;
4619 /** Shader constants (uniforms, program parameters, state constants) */
4620 uint64_t NewShaderConstants
[MESA_SHADER_STAGES
];
4622 /** Programmable sample location state for gl_context::DrawBuffer */
4623 uint64_t NewSampleLocations
;
4626 struct gl_buffer_binding
4628 struct gl_buffer_object
*BufferObject
;
4629 /** Start of uniform block data in the buffer */
4631 /** Size of data allowed to be referenced from the buffer (in bytes) */
4634 * glBindBufferBase() indicates that the Size should be ignored and only
4635 * limited by the current size of the BufferObject.
4637 GLboolean AutomaticSize
;
4641 * ARB_shader_image_load_store image unit.
4643 struct gl_image_unit
4646 * Texture object bound to this unit.
4648 struct gl_texture_object
*TexObj
;
4651 * Level of the texture object bound to this unit.
4656 * \c GL_TRUE if the whole level is bound as an array of layers, \c
4657 * GL_FALSE if only some specific layer of the texture is bound.
4663 * Layer of the texture object bound to this unit as specified by the
4669 * Layer of the texture object bound to this unit, or zero if
4675 * Access allowed to this texture image. Either \c GL_READ_ONLY,
4676 * \c GL_WRITE_ONLY or \c GL_READ_WRITE.
4681 * GL internal format that determines the interpretation of the
4682 * image memory when shader image operations are performed through
4688 * Mesa format corresponding to \c Format.
4690 mesa_format _ActualFormat
:16;
4694 * Shader subroutines storage
4696 struct gl_subroutine_index_binding
4702 struct gl_texture_handle_object
4704 struct gl_texture_object
*texObj
;
4705 struct gl_sampler_object
*sampObj
;
4709 struct gl_image_handle_object
4711 struct gl_image_unit imgObj
;
4715 struct gl_memory_object
4717 GLuint Name
; /**< hash table ID/name */
4718 GLboolean Immutable
; /**< denotes mutability state of parameters */
4719 GLboolean Dedicated
; /**< import memory from a dedicated allocation */
4722 struct gl_semaphore_object
4724 GLuint Name
; /**< hash table ID/name */
4728 * Mesa rendering context.
4730 * This is the central context data structure for Mesa. Almost all
4731 * OpenGL state is contained in this structure.
4732 * Think of this as a base class from which device drivers will derive
4737 /** State possibly shared with other contexts in the address space */
4738 struct gl_shared_state
*Shared
;
4740 /** \name API function pointer tables */
4745 * The current dispatch table for non-displaylist-saving execution, either
4746 * BeginEnd or OutsideBeginEnd
4748 struct _glapi_table
*Exec
;
4750 * The normal dispatch table for non-displaylist-saving, non-begin/end
4752 struct _glapi_table
*OutsideBeginEnd
;
4753 /** The dispatch table used between glNewList() and glEndList() */
4754 struct _glapi_table
*Save
;
4756 * The dispatch table used between glBegin() and glEnd() (outside of a
4757 * display list). Only valid functions between those two are set, which is
4758 * mostly just the set in a GLvertexformat struct.
4760 struct _glapi_table
*BeginEnd
;
4762 * Dispatch table for when a graphics reset has happened.
4764 struct _glapi_table
*ContextLost
;
4766 * Dispatch table used to marshal API calls from the client program to a
4767 * separate server thread. NULL if API calls are not being marshalled to
4770 struct _glapi_table
*MarshalExec
;
4772 * Dispatch table currently in use for fielding API calls from the client
4773 * program. If API calls are being marshalled to another thread, this ==
4774 * MarshalExec. Otherwise it == CurrentServerDispatch.
4776 struct _glapi_table
*CurrentClientDispatch
;
4779 * Dispatch table currently in use for performing API calls. == Save or
4782 struct _glapi_table
*CurrentServerDispatch
;
4786 struct glthread_state
*GLThread
;
4788 struct gl_config Visual
;
4789 struct gl_framebuffer
*DrawBuffer
; /**< buffer for writing */
4790 struct gl_framebuffer
*ReadBuffer
; /**< buffer for reading */
4791 struct gl_framebuffer
*WinSysDrawBuffer
; /**< set with MakeCurrent */
4792 struct gl_framebuffer
*WinSysReadBuffer
; /**< set with MakeCurrent */
4795 * Device driver function pointer table
4797 struct dd_function_table Driver
;
4799 /** Core/Driver constants */
4800 struct gl_constants Const
;
4802 /** \name The various 4x4 matrix stacks */
4804 struct gl_matrix_stack ModelviewMatrixStack
;
4805 struct gl_matrix_stack ProjectionMatrixStack
;
4806 struct gl_matrix_stack TextureMatrixStack
[MAX_TEXTURE_UNITS
];
4807 struct gl_matrix_stack ProgramMatrixStack
[MAX_PROGRAM_MATRICES
];
4808 struct gl_matrix_stack
*CurrentStack
; /**< Points to one of the above stacks */
4811 /** Combined modelview and projection matrix */
4812 GLmatrix _ModelProjectMatrix
;
4814 /** \name Display lists */
4815 struct gl_dlist_state ListState
;
4817 GLboolean ExecuteFlag
; /**< Execute GL commands? */
4818 GLboolean CompileFlag
; /**< Compile GL commands into display list? */
4820 /** Extension information */
4821 struct gl_extensions Extensions
;
4823 /** GL version integer, for example 31 for GL 3.1, or 20 for GLES 2.0. */
4825 char *VersionString
;
4827 /** \name State attribute stack (for glPush/PopAttrib) */
4829 GLuint AttribStackDepth
;
4830 struct gl_attrib_node
*AttribStack
[MAX_ATTRIB_STACK_DEPTH
];
4833 /** \name Renderer attribute groups
4835 * We define a struct for each attribute group to make pushing and popping
4836 * attributes easy. Also it's a good organization.
4839 struct gl_accum_attrib Accum
; /**< Accum buffer attributes */
4840 struct gl_colorbuffer_attrib Color
; /**< Color buffer attributes */
4841 struct gl_current_attrib Current
; /**< Current attributes */
4842 struct gl_depthbuffer_attrib Depth
; /**< Depth buffer attributes */
4843 struct gl_eval_attrib Eval
; /**< Eval attributes */
4844 struct gl_fog_attrib Fog
; /**< Fog attributes */
4845 struct gl_hint_attrib Hint
; /**< Hint attributes */
4846 struct gl_light_attrib Light
; /**< Light attributes */
4847 struct gl_line_attrib Line
; /**< Line attributes */
4848 struct gl_list_attrib List
; /**< List attributes */
4849 struct gl_multisample_attrib Multisample
;
4850 struct gl_pixel_attrib Pixel
; /**< Pixel attributes */
4851 struct gl_point_attrib Point
; /**< Point attributes */
4852 struct gl_polygon_attrib Polygon
; /**< Polygon attributes */
4853 GLuint PolygonStipple
[32]; /**< Polygon stipple */
4854 struct gl_scissor_attrib Scissor
; /**< Scissor attributes */
4855 struct gl_stencil_attrib Stencil
; /**< Stencil buffer attributes */
4856 struct gl_texture_attrib Texture
; /**< Texture attributes */
4857 struct gl_transform_attrib Transform
; /**< Transformation attributes */
4858 struct gl_viewport_attrib ViewportArray
[MAX_VIEWPORTS
]; /**< Viewport attributes */
4859 GLuint SubpixelPrecisionBias
[2]; /**< Viewport attributes */
4862 /** \name Client attribute stack */
4864 GLuint ClientAttribStackDepth
;
4865 struct gl_attrib_node
*ClientAttribStack
[MAX_CLIENT_ATTRIB_STACK_DEPTH
];
4868 /** \name Client attribute groups */
4870 struct gl_array_attrib Array
; /**< Vertex arrays */
4871 struct gl_pixelstore_attrib Pack
; /**< Pixel packing */
4872 struct gl_pixelstore_attrib Unpack
; /**< Pixel unpacking */
4873 struct gl_pixelstore_attrib DefaultPacking
; /**< Default params */
4876 /** \name Other assorted state (not pushed/popped on attribute stack) */
4878 struct gl_pixelmaps PixelMaps
;
4880 struct gl_evaluators EvalMap
; /**< All evaluators */
4881 struct gl_feedback Feedback
; /**< Feedback */
4882 struct gl_selection Select
; /**< Selection */
4884 struct gl_program_state Program
; /**< general program state */
4885 struct gl_vertex_program_state VertexProgram
;
4886 struct gl_fragment_program_state FragmentProgram
;
4887 struct gl_geometry_program_state GeometryProgram
;
4888 struct gl_compute_program_state ComputeProgram
;
4889 struct gl_tess_ctrl_program_state TessCtrlProgram
;
4890 struct gl_tess_eval_program_state TessEvalProgram
;
4891 struct gl_ati_fragment_shader_state ATIFragmentShader
;
4893 struct gl_pipeline_shader_state Pipeline
; /**< GLSL pipeline shader object state */
4894 struct gl_pipeline_object Shader
; /**< GLSL shader object state */
4897 * Current active shader pipeline state
4899 * Almost all internal users want ::_Shader instead of ::Shader. The
4900 * exceptions are bits of legacy GLSL API that do not know about separate
4903 * If a program is active via \c glUseProgram, this will point to
4906 * If a program pipeline is active via \c glBindProgramPipeline, this will
4907 * point to \c ::Pipeline.Current.
4909 * If neither a program nor a program pipeline is active, this will point to
4910 * \c ::Pipeline.Default. This ensures that \c ::_Shader will never be
4913 struct gl_pipeline_object
*_Shader
;
4915 struct gl_query_state Query
; /**< occlusion, timer queries */
4917 struct gl_transform_feedback_state TransformFeedback
;
4919 struct gl_perf_monitor_state PerfMonitor
;
4920 struct gl_perf_query_state PerfQuery
;
4922 struct gl_buffer_object
*DrawIndirectBuffer
; /** < GL_ARB_draw_indirect */
4923 struct gl_buffer_object
*ParameterBuffer
; /** < GL_ARB_indirect_parameters */
4924 struct gl_buffer_object
*DispatchIndirectBuffer
; /** < GL_ARB_compute_shader */
4926 struct gl_buffer_object
*CopyReadBuffer
; /**< GL_ARB_copy_buffer */
4927 struct gl_buffer_object
*CopyWriteBuffer
; /**< GL_ARB_copy_buffer */
4929 struct gl_buffer_object
*QueryBuffer
; /**< GL_ARB_query_buffer_object */
4932 * Current GL_ARB_uniform_buffer_object binding referenced by
4933 * GL_UNIFORM_BUFFER target for glBufferData, glMapBuffer, etc.
4935 struct gl_buffer_object
*UniformBuffer
;
4938 * Current GL_ARB_shader_storage_buffer_object binding referenced by
4939 * GL_SHADER_STORAGE_BUFFER target for glBufferData, glMapBuffer, etc.
4941 struct gl_buffer_object
*ShaderStorageBuffer
;
4944 * Array of uniform buffers for GL_ARB_uniform_buffer_object and GL 3.1.
4945 * This is set up using glBindBufferRange() or glBindBufferBase(). They are
4946 * associated with uniform blocks by glUniformBlockBinding()'s state in the
4949 struct gl_buffer_binding
4950 UniformBufferBindings
[MAX_COMBINED_UNIFORM_BUFFERS
];
4953 * Array of shader storage buffers for ARB_shader_storage_buffer_object
4954 * and GL 4.3. This is set up using glBindBufferRange() or
4955 * glBindBufferBase(). They are associated with shader storage blocks by
4956 * glShaderStorageBlockBinding()'s state in the shader program.
4958 struct gl_buffer_binding
4959 ShaderStorageBufferBindings
[MAX_COMBINED_SHADER_STORAGE_BUFFERS
];
4962 * Object currently associated with the GL_ATOMIC_COUNTER_BUFFER
4965 struct gl_buffer_object
*AtomicBuffer
;
4968 * Object currently associated w/ the GL_EXTERNAL_VIRTUAL_MEMORY_BUFFER_AMD
4971 struct gl_buffer_object
*ExternalVirtualMemoryBuffer
;
4974 * Array of atomic counter buffer binding points.
4976 struct gl_buffer_binding
4977 AtomicBufferBindings
[MAX_COMBINED_ATOMIC_BUFFERS
];
4980 * Array of image units for ARB_shader_image_load_store.
4982 struct gl_image_unit ImageUnits
[MAX_IMAGE_UNITS
];
4984 struct gl_subroutine_index_binding SubroutineIndex
[MESA_SHADER_STAGES
];
4987 struct gl_meta_state
*Meta
; /**< for "meta" operations */
4989 /* GL_EXT_framebuffer_object */
4990 struct gl_renderbuffer
*CurrentRenderbuffer
;
4992 GLenum16 ErrorValue
; /**< Last error code */
4995 * Recognize and silence repeated error debug messages in buggy apps.
4997 const char *ErrorDebugFmtString
;
4998 GLuint ErrorDebugCount
;
5000 /* GL_ARB_debug_output/GL_KHR_debug */
5001 simple_mtx_t DebugMutex
;
5002 struct gl_debug_state
*Debug
;
5004 GLenum16 RenderMode
; /**< either GL_RENDER, GL_SELECT, GL_FEEDBACK */
5005 GLbitfield NewState
; /**< bitwise-or of _NEW_* flags */
5006 uint64_t NewDriverState
; /**< bitwise-or of flags from DriverFlags */
5008 struct gl_driver_flags DriverFlags
;
5010 GLboolean ViewportInitialized
; /**< has viewport size been initialized? */
5012 GLbitfield varying_vp_inputs
; /**< mask of VERT_BIT_* flags */
5014 /** \name Derived state */
5015 GLbitfield _ImageTransferState
;/**< bitwise-or of IMAGE_*_BIT flags */
5016 GLfloat _EyeZDir
[3];
5017 GLfloat _ModelViewInvScale
; /* may be for model- or eyespace lighting */
5018 GLfloat _ModelViewInvScaleEyespace
; /* always factor defined in spec */
5019 GLboolean _NeedEyeCoords
;
5020 GLboolean _ForceEyeCoords
;
5022 GLuint TextureStateTimestamp
; /**< detect changes to shared state */
5024 struct gl_list_extensions
*ListExt
; /**< driver dlist extensions */
5026 /** \name For debugging/development only */
5028 GLboolean FirstTimeCurrent
;
5032 * False if this context was created without a config. This is needed
5033 * because the initial state of glDrawBuffers depends on this
5035 GLboolean HasConfig
;
5037 GLboolean TextureFormatSupported
[MESA_FORMAT_COUNT
];
5039 GLboolean RasterDiscard
; /**< GL_RASTERIZER_DISCARD */
5040 GLboolean IntelConservativeRasterization
; /**< GL_CONSERVATIVE_RASTERIZATION_INTEL */
5041 GLboolean ConservativeRasterization
; /**< GL_CONSERVATIVE_RASTERIZATION_NV */
5042 GLfloat ConservativeRasterDilate
;
5043 GLenum16 ConservativeRasterMode
;
5045 /** Does glVertexAttrib(0) alias glVertex()? */
5046 bool _AttribZeroAliasesVertex
;
5049 * When set, TileRasterOrderIncreasingX/Y control the order that a tiled
5050 * renderer's tiles should be excecuted, to meet the requirements of
5051 * GL_MESA_tile_raster_order.
5053 GLboolean TileRasterOrderFixed
;
5054 GLboolean TileRasterOrderIncreasingX
;
5055 GLboolean TileRasterOrderIncreasingY
;
5058 * \name Hooks for module contexts.
5060 * These will eventually live in the driver or elsewhere.
5063 void *swrast_context
;
5064 void *swsetup_context
;
5065 void *swtnl_context
;
5066 struct vbo_context
*vbo_context
;
5067 struct st_context
*st
;
5072 * \name NV_vdpau_interop
5075 const void *vdpDevice
;
5076 const void *vdpGetProcAddress
;
5077 struct set
*vdpSurfaces
;
5081 * Has this context observed a GPU reset in any context in the share group?
5083 * Once this field becomes true, it is never reset to false.
5085 GLboolean ShareGroupReset
;
5088 * \name OES_primitive_bounding_box
5090 * Stores the arguments to glPrimitiveBoundingBox
5092 GLfloat PrimitiveBoundingBox
[8];
5094 struct disk_cache
*Cache
;
5097 * \name GL_ARB_bindless_texture
5100 struct hash_table_u64
*ResidentTextureHandles
;
5101 struct hash_table_u64
*ResidentImageHandles
;
5106 * Information about memory usage. All sizes are in kilobytes.
5108 struct gl_memory_info
5110 unsigned total_device_memory
; /**< size of device memory, e.g. VRAM */
5111 unsigned avail_device_memory
; /**< free device memory at the moment */
5112 unsigned total_staging_memory
; /**< size of staging memory, e.g. GART */
5113 unsigned avail_staging_memory
; /**< free staging memory at the moment */
5114 unsigned device_memory_evicted
; /**< size of memory evicted (monotonic counter) */
5115 unsigned nr_device_memory_evictions
; /**< # of evictions (monotonic counter) */
5119 extern int MESA_VERBOSE
;
5120 extern int MESA_DEBUG_FLAGS
;
5122 # define MESA_VERBOSE 0
5123 # define MESA_DEBUG_FLAGS 0
5127 /** The MESA_VERBOSE var is a bitmask of these flags */
5130 VERBOSE_VARRAY
= 0x0001,
5131 VERBOSE_TEXTURE
= 0x0002,
5132 VERBOSE_MATERIAL
= 0x0004,
5133 VERBOSE_PIPELINE
= 0x0008,
5134 VERBOSE_DRIVER
= 0x0010,
5135 VERBOSE_STATE
= 0x0020,
5136 VERBOSE_API
= 0x0040,
5137 VERBOSE_DISPLAY_LIST
= 0x0100,
5138 VERBOSE_LIGHTING
= 0x0200,
5139 VERBOSE_PRIMS
= 0x0400,
5140 VERBOSE_VERTS
= 0x0800,
5141 VERBOSE_DISASSEM
= 0x1000,
5142 VERBOSE_DRAW
= 0x2000,
5143 VERBOSE_SWAPBUFFERS
= 0x4000
5147 /** The MESA_DEBUG_FLAGS var is a bitmask of these flags */
5150 DEBUG_SILENT
= (1 << 0),
5151 DEBUG_ALWAYS_FLUSH
= (1 << 1),
5152 DEBUG_INCOMPLETE_TEXTURE
= (1 << 2),
5153 DEBUG_INCOMPLETE_FBO
= (1 << 3),
5154 DEBUG_CONTEXT
= (1 << 4)
5161 #endif /* MTYPES_H */