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
;
80 struct shader_includes
;
85 /** Extra draw modes beyond GL_POINTS, GL_TRIANGLE_FAN, etc */
86 #define PRIM_MAX GL_PATCHES
87 #define PRIM_OUTSIDE_BEGIN_END (PRIM_MAX + 1)
88 #define PRIM_UNKNOWN (PRIM_MAX + 2)
91 * Determine if the given gl_varying_slot appears in the fragment shader.
93 static inline GLboolean
94 _mesa_varying_slot_in_fs(gl_varying_slot slot
)
97 case VARYING_SLOT_PSIZ
:
98 case VARYING_SLOT_BFC0
:
99 case VARYING_SLOT_BFC1
:
100 case VARYING_SLOT_EDGE
:
101 case VARYING_SLOT_CLIP_VERTEX
:
102 case VARYING_SLOT_LAYER
:
103 case VARYING_SLOT_TESS_LEVEL_OUTER
:
104 case VARYING_SLOT_TESS_LEVEL_INNER
:
105 case VARYING_SLOT_BOUNDING_BOX0
:
106 case VARYING_SLOT_BOUNDING_BOX1
:
114 * Bit flags for all renderbuffers
116 #define BUFFER_BIT_FRONT_LEFT (1 << BUFFER_FRONT_LEFT)
117 #define BUFFER_BIT_BACK_LEFT (1 << BUFFER_BACK_LEFT)
118 #define BUFFER_BIT_FRONT_RIGHT (1 << BUFFER_FRONT_RIGHT)
119 #define BUFFER_BIT_BACK_RIGHT (1 << BUFFER_BACK_RIGHT)
120 #define BUFFER_BIT_AUX0 (1 << BUFFER_AUX0)
121 #define BUFFER_BIT_AUX1 (1 << BUFFER_AUX1)
122 #define BUFFER_BIT_AUX2 (1 << BUFFER_AUX2)
123 #define BUFFER_BIT_AUX3 (1 << BUFFER_AUX3)
124 #define BUFFER_BIT_DEPTH (1 << BUFFER_DEPTH)
125 #define BUFFER_BIT_STENCIL (1 << BUFFER_STENCIL)
126 #define BUFFER_BIT_ACCUM (1 << BUFFER_ACCUM)
127 #define BUFFER_BIT_COLOR0 (1 << BUFFER_COLOR0)
128 #define BUFFER_BIT_COLOR1 (1 << BUFFER_COLOR1)
129 #define BUFFER_BIT_COLOR2 (1 << BUFFER_COLOR2)
130 #define BUFFER_BIT_COLOR3 (1 << BUFFER_COLOR3)
131 #define BUFFER_BIT_COLOR4 (1 << BUFFER_COLOR4)
132 #define BUFFER_BIT_COLOR5 (1 << BUFFER_COLOR5)
133 #define BUFFER_BIT_COLOR6 (1 << BUFFER_COLOR6)
134 #define BUFFER_BIT_COLOR7 (1 << BUFFER_COLOR7)
137 * Mask of all the color buffer bits (but not accum).
139 #define BUFFER_BITS_COLOR (BUFFER_BIT_FRONT_LEFT | \
140 BUFFER_BIT_BACK_LEFT | \
141 BUFFER_BIT_FRONT_RIGHT | \
142 BUFFER_BIT_BACK_RIGHT | \
144 BUFFER_BIT_COLOR0 | \
145 BUFFER_BIT_COLOR1 | \
146 BUFFER_BIT_COLOR2 | \
147 BUFFER_BIT_COLOR3 | \
148 BUFFER_BIT_COLOR4 | \
149 BUFFER_BIT_COLOR5 | \
150 BUFFER_BIT_COLOR6 | \
153 /* Mask of bits for depth+stencil buffers */
154 #define BUFFER_BITS_DEPTH_STENCIL (BUFFER_BIT_DEPTH | BUFFER_BIT_STENCIL)
157 * Framebuffer configuration (aka visual / pixelformat)
158 * Note: some of these fields should be boolean, but it appears that
159 * code in drivers/dri/common/util.c requires int-sized fields.
164 GLuint doubleBufferMode
;
167 GLint redBits
, greenBits
, blueBits
, alphaBits
; /* bits per comp */
168 GLuint redMask
, greenMask
, blueMask
, alphaMask
;
169 GLint redShift
, greenShift
, blueShift
, alphaShift
;
170 GLint rgbBits
; /* total bits for rgb */
172 GLint accumRedBits
, accumGreenBits
, accumBlueBits
, accumAlphaBits
;
180 /* EXT_visual_rating / GLX 1.2 */
183 /* EXT_visual_info / GLX 1.2 */
184 GLint transparentPixel
;
185 /* colors are floats scaled to ints */
186 GLint transparentRed
, transparentGreen
, transparentBlue
, transparentAlpha
;
187 GLint transparentIndex
;
189 /* ARB_multisample / SGIS_multisample */
193 /* SGIX_pbuffer / GLX 1.3 */
194 GLint maxPbufferWidth
;
195 GLint maxPbufferHeight
;
196 GLint maxPbufferPixels
;
197 GLint optimalPbufferWidth
; /* Only for SGIX_pbuffer. */
198 GLint optimalPbufferHeight
; /* Only for SGIX_pbuffer. */
200 /* OML_swap_method */
203 /* EXT_texture_from_pixmap */
204 GLint bindToTextureRgb
;
205 GLint bindToTextureRgba
;
206 GLint bindToMipmapTexture
;
207 GLint bindToTextureTargets
;
210 /* EXT_framebuffer_sRGB */
213 /* EGL_KHR_mutable_render_buffer */
214 GLuint mutableRenderBuffer
; /* bool */
219 * \name Bit flags used for updating material values.
222 #define MAT_ATTRIB_FRONT_AMBIENT 0
223 #define MAT_ATTRIB_BACK_AMBIENT 1
224 #define MAT_ATTRIB_FRONT_DIFFUSE 2
225 #define MAT_ATTRIB_BACK_DIFFUSE 3
226 #define MAT_ATTRIB_FRONT_SPECULAR 4
227 #define MAT_ATTRIB_BACK_SPECULAR 5
228 #define MAT_ATTRIB_FRONT_EMISSION 6
229 #define MAT_ATTRIB_BACK_EMISSION 7
230 #define MAT_ATTRIB_FRONT_SHININESS 8
231 #define MAT_ATTRIB_BACK_SHININESS 9
232 #define MAT_ATTRIB_FRONT_INDEXES 10
233 #define MAT_ATTRIB_BACK_INDEXES 11
234 #define MAT_ATTRIB_MAX 12
236 #define MAT_ATTRIB_AMBIENT(f) (MAT_ATTRIB_FRONT_AMBIENT+(f))
237 #define MAT_ATTRIB_DIFFUSE(f) (MAT_ATTRIB_FRONT_DIFFUSE+(f))
238 #define MAT_ATTRIB_SPECULAR(f) (MAT_ATTRIB_FRONT_SPECULAR+(f))
239 #define MAT_ATTRIB_EMISSION(f) (MAT_ATTRIB_FRONT_EMISSION+(f))
240 #define MAT_ATTRIB_SHININESS(f)(MAT_ATTRIB_FRONT_SHININESS+(f))
241 #define MAT_ATTRIB_INDEXES(f) (MAT_ATTRIB_FRONT_INDEXES+(f))
243 #define MAT_BIT_FRONT_AMBIENT (1<<MAT_ATTRIB_FRONT_AMBIENT)
244 #define MAT_BIT_BACK_AMBIENT (1<<MAT_ATTRIB_BACK_AMBIENT)
245 #define MAT_BIT_FRONT_DIFFUSE (1<<MAT_ATTRIB_FRONT_DIFFUSE)
246 #define MAT_BIT_BACK_DIFFUSE (1<<MAT_ATTRIB_BACK_DIFFUSE)
247 #define MAT_BIT_FRONT_SPECULAR (1<<MAT_ATTRIB_FRONT_SPECULAR)
248 #define MAT_BIT_BACK_SPECULAR (1<<MAT_ATTRIB_BACK_SPECULAR)
249 #define MAT_BIT_FRONT_EMISSION (1<<MAT_ATTRIB_FRONT_EMISSION)
250 #define MAT_BIT_BACK_EMISSION (1<<MAT_ATTRIB_BACK_EMISSION)
251 #define MAT_BIT_FRONT_SHININESS (1<<MAT_ATTRIB_FRONT_SHININESS)
252 #define MAT_BIT_BACK_SHININESS (1<<MAT_ATTRIB_BACK_SHININESS)
253 #define MAT_BIT_FRONT_INDEXES (1<<MAT_ATTRIB_FRONT_INDEXES)
254 #define MAT_BIT_BACK_INDEXES (1<<MAT_ATTRIB_BACK_INDEXES)
257 #define FRONT_MATERIAL_BITS (MAT_BIT_FRONT_EMISSION | \
258 MAT_BIT_FRONT_AMBIENT | \
259 MAT_BIT_FRONT_DIFFUSE | \
260 MAT_BIT_FRONT_SPECULAR | \
261 MAT_BIT_FRONT_SHININESS | \
262 MAT_BIT_FRONT_INDEXES)
264 #define BACK_MATERIAL_BITS (MAT_BIT_BACK_EMISSION | \
265 MAT_BIT_BACK_AMBIENT | \
266 MAT_BIT_BACK_DIFFUSE | \
267 MAT_BIT_BACK_SPECULAR | \
268 MAT_BIT_BACK_SHININESS | \
269 MAT_BIT_BACK_INDEXES)
271 #define ALL_MATERIAL_BITS (FRONT_MATERIAL_BITS | BACK_MATERIAL_BITS)
280 GLfloat Attrib
[MAT_ATTRIB_MAX
][4];
288 #define LIGHT_SPOT 0x1
289 #define LIGHT_LOCAL_VIEWER 0x2
290 #define LIGHT_POSITIONAL 0x4
291 #define LIGHT_NEED_VERTICES (LIGHT_POSITIONAL|LIGHT_LOCAL_VIEWER)
296 * Light source state.
300 GLfloat Ambient
[4]; /**< ambient color */
301 GLfloat Diffuse
[4]; /**< diffuse color */
302 GLfloat Specular
[4]; /**< specular color */
303 GLfloat EyePosition
[4]; /**< position in eye coordinates */
304 GLfloat SpotDirection
[4]; /**< spotlight direction in eye coordinates */
305 GLfloat SpotExponent
;
306 GLfloat SpotCutoff
; /**< in degrees */
307 GLfloat _CosCutoff
; /**< = MAX(0, cos(SpotCutoff)) */
308 GLfloat ConstantAttenuation
;
309 GLfloat LinearAttenuation
;
310 GLfloat QuadraticAttenuation
;
311 GLboolean Enabled
; /**< On/off flag */
314 * \name Derived fields
317 GLbitfield _Flags
; /**< Mask of LIGHT_x bits defined above */
319 GLfloat _Position
[4]; /**< position in eye/obj coordinates */
320 GLfloat _VP_inf_norm
[3]; /**< Norm direction to infinite light */
321 GLfloat _h_inf_norm
[3]; /**< Norm( _VP_inf_norm + <0,0,1> ) */
322 GLfloat _NormSpotDirection
[4]; /**< normalized spotlight direction */
323 GLfloat _VP_inf_spot_attenuation
;
325 GLfloat _MatAmbient
[2][3]; /**< material ambient * light ambient */
326 GLfloat _MatDiffuse
[2][3]; /**< material diffuse * light diffuse */
327 GLfloat _MatSpecular
[2][3]; /**< material spec * light specular */
337 GLfloat Ambient
[4]; /**< ambient color */
338 GLboolean LocalViewer
; /**< Local (or infinite) view point? */
339 GLboolean TwoSide
; /**< Two (or one) sided lighting? */
340 GLenum16 ColorControl
; /**< either GL_SINGLE_COLOR
341 or GL_SEPARATE_SPECULAR_COLOR */
346 * Accumulation buffer attribute group (GL_ACCUM_BUFFER_BIT)
348 struct gl_accum_attrib
350 GLfloat ClearColor
[4]; /**< Accumulation buffer clear color */
355 * Used for storing clear color, texture border color, etc.
356 * The float values are typically unclamped.
367 * Color buffer attribute group (GL_COLOR_BUFFER_BIT).
369 struct gl_colorbuffer_attrib
371 GLuint ClearIndex
; /**< Index for glClear */
372 union gl_color_union ClearColor
; /**< Color for glClear, unclamped */
373 GLuint IndexMask
; /**< Color index write mask */
375 /** 4 colormask bits per draw buffer, max 8 draw buffers. 4*8 = 32 bits */
376 GLbitfield ColorMask
;
378 GLenum16 DrawBuffer
[MAX_DRAW_BUFFERS
]; /**< Which buffer to draw into */
381 * \name alpha testing
384 GLboolean AlphaEnabled
; /**< Alpha test enabled flag */
385 GLenum16 AlphaFunc
; /**< Alpha test function */
386 GLfloat AlphaRefUnclamped
;
387 GLclampf AlphaRef
; /**< Alpha reference value */
394 GLbitfield BlendEnabled
; /**< Per-buffer blend enable flags */
396 /* NOTE: this does _not_ depend on fragment clamping or any other clamping
397 * control, only on the fixed-pointness of the render target.
398 * The query does however depend on fragment color clamping.
400 GLfloat BlendColorUnclamped
[4]; /**< Blending color */
401 GLfloat BlendColor
[4]; /**< Blending color */
405 GLenum16 SrcRGB
; /**< RGB blend source term */
406 GLenum16 DstRGB
; /**< RGB blend dest term */
407 GLenum16 SrcA
; /**< Alpha blend source term */
408 GLenum16 DstA
; /**< Alpha blend dest term */
409 GLenum16 EquationRGB
; /**< GL_ADD, GL_SUBTRACT, etc. */
410 GLenum16 EquationA
; /**< GL_ADD, GL_SUBTRACT, etc. */
412 * Set if any blend factor uses SRC1. Computed at the time blend factors
415 GLboolean _UsesDualSrc
;
416 } Blend
[MAX_DRAW_BUFFERS
];
417 /** Are the blend func terms currently different for each buffer/target? */
418 GLboolean _BlendFuncPerBuffer
;
419 /** Are the blend equations currently different for each buffer/target? */
420 GLboolean _BlendEquationPerBuffer
;
423 * Which advanced blending mode is in use (or BLEND_NONE).
425 * KHR_blend_equation_advanced only allows advanced blending with a single
426 * draw buffer, and NVX_blend_equation_advanced_multi_draw_buffer still
427 * requires all draw buffers to match, so we only need a single value.
429 enum gl_advanced_blend_mode _AdvancedBlendMode
;
431 /** Coherency requested via glEnable(GL_BLEND_ADVANCED_COHERENT_KHR)? */
439 GLboolean IndexLogicOpEnabled
; /**< Color index logic op enabled flag */
440 GLboolean ColorLogicOpEnabled
; /**< RGBA logic op enabled flag */
441 GLenum16 LogicOp
; /**< Logic operator */
442 enum gl_logicop_mode _LogicOp
;
445 GLboolean DitherFlag
; /**< Dither enable flag */
447 GLboolean _ClampFragmentColor
; /** < with GL_FIXED_ONLY_ARB resolved */
448 GLenum16 ClampFragmentColor
; /**< GL_TRUE, GL_FALSE or GL_FIXED_ONLY_ARB */
449 GLenum16 ClampReadColor
; /**< GL_TRUE, GL_FALSE or GL_FIXED_ONLY_ARB */
451 GLboolean sRGBEnabled
; /**< Framebuffer sRGB blending/updating requested */
456 * Vertex format to describe a vertex element.
458 struct gl_vertex_format
460 GLenum16 Type
; /**< datatype: GL_FLOAT, GL_INT, etc */
461 GLenum16 Format
; /**< default: GL_RGBA, but may be GL_BGRA */
462 enum pipe_format _PipeFormat
:16; /**< pipe_format for Gallium */
463 GLubyte Size
:5; /**< components per element (1,2,3,4) */
464 GLubyte Normalized
:1; /**< GL_ARB_vertex_program */
465 GLubyte Integer
:1; /**< Integer-valued? */
466 GLubyte Doubles
:1; /**< double values are not converted to floats */
467 GLubyte _ElementSize
; /**< Size of each element in bytes */
472 * Current attribute group (GL_CURRENT_BIT).
474 struct gl_current_attrib
477 * \name Current vertex attributes (color, texcoords, etc).
478 * \note Values are valid only after FLUSH_VERTICES has been called.
479 * \note Index and Edgeflag current values are stored as floats in the
480 * SIX and SEVEN attribute slots.
481 * \note We need double storage for 64-bit vertex attributes
483 GLfloat Attrib
[VERT_ATTRIB_MAX
][4*2];
486 * \name Current raster position attributes (always up to date after a
489 GLfloat RasterPos
[4];
490 GLfloat RasterDistance
;
491 GLfloat RasterColor
[4];
492 GLfloat RasterSecondaryColor
[4];
493 GLfloat RasterTexCoords
[MAX_TEXTURE_COORD_UNITS
][4];
494 GLboolean RasterPosValid
;
499 * Depth buffer attribute group (GL_DEPTH_BUFFER_BIT).
501 struct gl_depthbuffer_attrib
503 GLenum16 Func
; /**< Function for depth buffer compare */
504 GLclampd Clear
; /**< Value to clear depth buffer to */
505 GLboolean Test
; /**< Depth buffering enabled flag */
506 GLboolean Mask
; /**< Depth buffer writable? */
507 GLboolean BoundsTest
; /**< GL_EXT_depth_bounds_test */
508 GLfloat BoundsMin
, BoundsMax
;/**< GL_EXT_depth_bounds_test */
513 * Evaluator attribute group (GL_EVAL_BIT).
515 struct gl_eval_attrib
521 GLboolean Map1Color4
;
523 GLboolean Map1Normal
;
524 GLboolean Map1TextureCoord1
;
525 GLboolean Map1TextureCoord2
;
526 GLboolean Map1TextureCoord3
;
527 GLboolean Map1TextureCoord4
;
528 GLboolean Map1Vertex3
;
529 GLboolean Map1Vertex4
;
530 GLboolean Map2Color4
;
532 GLboolean Map2Normal
;
533 GLboolean Map2TextureCoord1
;
534 GLboolean Map2TextureCoord2
;
535 GLboolean Map2TextureCoord3
;
536 GLboolean Map2TextureCoord4
;
537 GLboolean Map2Vertex3
;
538 GLboolean Map2Vertex4
;
539 GLboolean AutoNormal
;
543 * \name Map Grid endpoints and divisions and calculated du values
547 GLfloat MapGrid1u1
, MapGrid1u2
, MapGrid1du
;
548 GLint MapGrid2un
, MapGrid2vn
;
549 GLfloat MapGrid2u1
, MapGrid2u2
, MapGrid2du
;
550 GLfloat MapGrid2v1
, MapGrid2v2
, MapGrid2dv
;
556 * Compressed fog mode.
568 * Fog attribute group (GL_FOG_BIT).
572 GLboolean Enabled
; /**< Fog enabled flag */
573 GLboolean ColorSumEnabled
;
574 uint8_t _PackedMode
; /**< Fog mode as 2 bits */
575 uint8_t _PackedEnabledMode
; /**< Masked CompressedMode */
576 GLfloat ColorUnclamped
[4]; /**< Fog color */
577 GLfloat Color
[4]; /**< Fog color */
578 GLfloat Density
; /**< Density >= 0.0 */
579 GLfloat Start
; /**< Start distance in eye coords */
580 GLfloat End
; /**< End distance in eye coords */
581 GLfloat Index
; /**< Fog index */
582 GLenum16 Mode
; /**< Fog mode */
583 GLenum16 FogCoordinateSource
;/**< GL_EXT_fog_coord */
584 GLenum16 FogDistanceMode
; /**< GL_NV_fog_distance */
589 * Hint attribute group (GL_HINT_BIT).
591 * Values are always one of GL_FASTEST, GL_NICEST, or GL_DONT_CARE.
593 struct gl_hint_attrib
595 GLenum16 PerspectiveCorrection
;
596 GLenum16 PointSmooth
;
598 GLenum16 PolygonSmooth
;
600 GLenum16 TextureCompression
; /**< GL_ARB_texture_compression */
601 GLenum16 GenerateMipmap
; /**< GL_SGIS_generate_mipmap */
602 GLenum16 FragmentShaderDerivative
; /**< GL_ARB_fragment_shader */
603 GLuint MaxShaderCompilerThreads
; /**< GL_ARB_parallel_shader_compile */
608 * Lighting attribute group (GL_LIGHT_BIT).
610 struct gl_light_attrib
612 struct gl_light Light
[MAX_LIGHTS
]; /**< Array of light sources */
613 struct gl_lightmodel Model
; /**< Lighting model */
616 * Front and back material values.
617 * Note: must call FLUSH_VERTICES() before using.
619 struct gl_material Material
;
621 GLboolean Enabled
; /**< Lighting enabled flag */
622 GLboolean ColorMaterialEnabled
;
624 GLenum16 ShadeModel
; /**< GL_FLAT or GL_SMOOTH */
625 GLenum16 ProvokingVertex
; /**< GL_EXT_provoking_vertex */
626 GLenum16 ColorMaterialFace
; /**< GL_FRONT, BACK or FRONT_AND_BACK */
627 GLenum16 ColorMaterialMode
; /**< GL_AMBIENT, GL_DIFFUSE, etc */
628 GLbitfield _ColorMaterialBitmask
; /**< bitmask formed from Face and Mode */
631 GLboolean _ClampVertexColor
;
632 GLenum16 ClampVertexColor
; /**< GL_TRUE, GL_FALSE, GL_FIXED_ONLY */
635 * Derived state for optimizations:
638 GLbitfield _EnabledLights
; /**< bitmask containing enabled lights */
640 GLboolean _NeedEyeCoords
;
641 GLboolean _NeedVertices
; /**< Use fast shader? */
643 GLfloat _BaseColor
[2][3];
649 * Line attribute group (GL_LINE_BIT).
651 struct gl_line_attrib
653 GLboolean SmoothFlag
; /**< GL_LINE_SMOOTH enabled? */
654 GLboolean StippleFlag
; /**< GL_LINE_STIPPLE enabled? */
655 GLushort StipplePattern
; /**< Stipple pattern */
656 GLint StippleFactor
; /**< Stipple repeat factor */
657 GLfloat Width
; /**< Line width */
662 * Display list attribute group (GL_LIST_BIT).
664 struct gl_list_attrib
671 * Multisample attribute group (GL_MULTISAMPLE_BIT).
673 struct gl_multisample_attrib
676 GLboolean SampleAlphaToCoverage
;
677 GLboolean SampleAlphaToOne
;
678 GLboolean SampleCoverage
;
679 GLboolean SampleCoverageInvert
;
680 GLboolean SampleShading
;
682 /* ARB_texture_multisample / GL3.2 additions */
683 GLboolean SampleMask
;
685 GLfloat SampleCoverageValue
; /**< In range [0, 1] */
686 GLfloat MinSampleShadingValue
; /**< In range [0, 1] */
688 /** The GL spec defines this as an array but >32x MSAA is madness */
689 GLbitfield SampleMaskValue
;
694 * A pixelmap (see glPixelMap)
699 GLfloat Map
[MAX_PIXEL_MAP_TABLE
];
704 * Collection of all pixelmaps
708 struct gl_pixelmap RtoR
; /**< i.e. GL_PIXEL_MAP_R_TO_R */
709 struct gl_pixelmap GtoG
;
710 struct gl_pixelmap BtoB
;
711 struct gl_pixelmap AtoA
;
712 struct gl_pixelmap ItoR
;
713 struct gl_pixelmap ItoG
;
714 struct gl_pixelmap ItoB
;
715 struct gl_pixelmap ItoA
;
716 struct gl_pixelmap ItoI
;
717 struct gl_pixelmap StoS
;
722 * Pixel attribute group (GL_PIXEL_MODE_BIT).
724 struct gl_pixel_attrib
726 GLenum16 ReadBuffer
; /**< source buffer for glRead/CopyPixels() */
728 /*--- Begin Pixel Transfer State ---*/
729 /* Fields are in the order in which they're applied... */
731 /** Scale & Bias (index shift, offset) */
733 GLfloat RedBias
, RedScale
;
734 GLfloat GreenBias
, GreenScale
;
735 GLfloat BlueBias
, BlueScale
;
736 GLfloat AlphaBias
, AlphaScale
;
737 GLfloat DepthBias
, DepthScale
;
738 GLint IndexShift
, IndexOffset
;
742 /* Note: actual pixel maps are not part of this attrib group */
743 GLboolean MapColorFlag
;
744 GLboolean MapStencilFlag
;
746 /*--- End Pixel Transfer State ---*/
749 GLfloat ZoomX
, ZoomY
;
754 * Point attribute group (GL_POINT_BIT).
756 struct gl_point_attrib
758 GLfloat Size
; /**< User-specified point size */
759 GLfloat Params
[3]; /**< GL_EXT_point_parameters */
760 GLfloat MinSize
, MaxSize
; /**< GL_EXT_point_parameters */
761 GLfloat Threshold
; /**< GL_EXT_point_parameters */
762 GLboolean SmoothFlag
; /**< True if GL_POINT_SMOOTH is enabled */
763 GLboolean _Attenuated
; /**< True if Params != [1, 0, 0] */
764 GLboolean PointSprite
; /**< GL_NV/ARB_point_sprite */
765 GLbitfield CoordReplace
; /**< GL_ARB_point_sprite*/
766 GLenum16 SpriteRMode
; /**< GL_NV_point_sprite (only!) */
767 GLenum16 SpriteOrigin
; /**< GL_ARB_point_sprite */
772 * Polygon attribute group (GL_POLYGON_BIT).
774 struct gl_polygon_attrib
776 GLenum16 FrontFace
; /**< Either GL_CW or GL_CCW */
777 GLenum FrontMode
; /**< Either GL_POINT, GL_LINE or GL_FILL */
778 GLenum BackMode
; /**< Either GL_POINT, GL_LINE or GL_FILL */
779 GLboolean CullFlag
; /**< Culling on/off flag */
780 GLboolean SmoothFlag
; /**< True if GL_POLYGON_SMOOTH is enabled */
781 GLboolean StippleFlag
; /**< True if GL_POLYGON_STIPPLE is enabled */
782 GLenum16 CullFaceMode
; /**< Culling mode GL_FRONT or GL_BACK */
783 GLfloat OffsetFactor
; /**< Polygon offset factor, from user */
784 GLfloat OffsetUnits
; /**< Polygon offset units, from user */
785 GLfloat OffsetClamp
; /**< Polygon offset clamp, from user */
786 GLboolean OffsetPoint
; /**< Offset in GL_POINT mode */
787 GLboolean OffsetLine
; /**< Offset in GL_LINE mode */
788 GLboolean OffsetFill
; /**< Offset in GL_FILL mode */
793 * Scissor attributes (GL_SCISSOR_BIT).
795 struct gl_scissor_rect
797 GLint X
, Y
; /**< Lower left corner of box */
798 GLsizei Width
, Height
; /**< Size of box */
802 struct gl_scissor_attrib
804 GLbitfield EnableFlags
; /**< Scissor test enabled? */
805 struct gl_scissor_rect ScissorArray
[MAX_VIEWPORTS
];
806 GLint NumWindowRects
; /**< Count of enabled window rectangles */
807 GLenum16 WindowRectMode
; /**< Whether to include or exclude the rects */
808 struct gl_scissor_rect WindowRects
[MAX_WINDOW_RECTANGLES
];
813 * Stencil attribute group (GL_STENCIL_BUFFER_BIT).
815 * Three sets of stencil data are tracked so that OpenGL 2.0,
816 * GL_EXT_stencil_two_side, and GL_ATI_separate_stencil can all be supported
817 * simultaneously. In each of the stencil state arrays, element 0 corresponds
818 * to GL_FRONT. Element 1 corresponds to the OpenGL 2.0 /
819 * GL_ATI_separate_stencil GL_BACK state. Element 2 corresponds to the
820 * GL_EXT_stencil_two_side GL_BACK state.
822 * The derived value \c _BackFace is either 1 or 2 depending on whether or
823 * not GL_STENCIL_TEST_TWO_SIDE_EXT is enabled.
825 * The derived value \c _TestTwoSide is set when the front-face and back-face
826 * stencil state are different.
828 struct gl_stencil_attrib
830 GLboolean Enabled
; /**< Enabled flag */
831 GLboolean TestTwoSide
; /**< GL_EXT_stencil_two_side */
832 GLubyte ActiveFace
; /**< GL_EXT_stencil_two_side (0 or 2) */
833 GLubyte _BackFace
; /**< Current back stencil state (1 or 2) */
834 GLenum16 Function
[3]; /**< Stencil function */
835 GLenum16 FailFunc
[3]; /**< Fail function */
836 GLenum16 ZPassFunc
[3]; /**< Depth buffer pass function */
837 GLenum16 ZFailFunc
[3]; /**< Depth buffer fail function */
838 GLint Ref
[3]; /**< Reference value */
839 GLuint ValueMask
[3]; /**< Value mask */
840 GLuint WriteMask
[3]; /**< Write mask */
841 GLuint Clear
; /**< Clear value */
846 * Bit flags for each type of texture object
849 #define TEXTURE_2D_MULTISAMPLE_BIT (1 << TEXTURE_2D_MULTISAMPLE_INDEX)
850 #define TEXTURE_2D_MULTISAMPLE_ARRAY_BIT (1 << TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX)
851 #define TEXTURE_CUBE_ARRAY_BIT (1 << TEXTURE_CUBE_ARRAY_INDEX)
852 #define TEXTURE_BUFFER_BIT (1 << TEXTURE_BUFFER_INDEX)
853 #define TEXTURE_2D_ARRAY_BIT (1 << TEXTURE_2D_ARRAY_INDEX)
854 #define TEXTURE_1D_ARRAY_BIT (1 << TEXTURE_1D_ARRAY_INDEX)
855 #define TEXTURE_EXTERNAL_BIT (1 << TEXTURE_EXTERNAL_INDEX)
856 #define TEXTURE_CUBE_BIT (1 << TEXTURE_CUBE_INDEX)
857 #define TEXTURE_3D_BIT (1 << TEXTURE_3D_INDEX)
858 #define TEXTURE_RECT_BIT (1 << TEXTURE_RECT_INDEX)
859 #define TEXTURE_2D_BIT (1 << TEXTURE_2D_INDEX)
860 #define TEXTURE_1D_BIT (1 << TEXTURE_1D_INDEX)
865 * Texture image state. Drivers will typically create a subclass of this
866 * with extra fields for memory buffers, etc.
868 struct gl_texture_image
870 GLint InternalFormat
; /**< Internal format as given by the user */
871 GLenum16 _BaseFormat
; /**< Either GL_RGB, GL_RGBA, GL_ALPHA,
872 * GL_LUMINANCE, GL_LUMINANCE_ALPHA,
873 * GL_INTENSITY, GL_DEPTH_COMPONENT or
874 * GL_DEPTH_STENCIL_EXT only. Used for
875 * choosing TexEnv arithmetic.
877 mesa_format TexFormat
; /**< The actual texture memory format */
879 GLuint Border
; /**< 0 or 1 */
880 GLuint Width
; /**< = 2^WidthLog2 + 2*Border */
881 GLuint Height
; /**< = 2^HeightLog2 + 2*Border */
882 GLuint Depth
; /**< = 2^DepthLog2 + 2*Border */
883 GLuint Width2
; /**< = Width - 2*Border */
884 GLuint Height2
; /**< = Height - 2*Border */
885 GLuint Depth2
; /**< = Depth - 2*Border */
886 GLuint WidthLog2
; /**< = log2(Width2) */
887 GLuint HeightLog2
; /**< = log2(Height2) */
888 GLuint DepthLog2
; /**< = log2(Depth2) */
889 GLuint MaxNumLevels
; /**< = maximum possible number of mipmap
890 levels, computed from the dimensions */
892 struct gl_texture_object
*TexObject
; /**< Pointer back to parent object */
893 GLuint Level
; /**< Which mipmap level am I? */
894 /** Cube map face: index into gl_texture_object::Image[] array */
897 /** GL_ARB_texture_multisample */
898 GLuint NumSamples
; /**< Sample count, or 0 for non-multisample */
899 GLboolean FixedSampleLocations
; /**< Same sample locations for all pixels? */
904 * Indexes for cube map faces.
919 * Sampler object state. These objects are new with GL_ARB_sampler_objects
920 * and OpenGL 3.3. Legacy texture objects also contain a sampler object.
922 struct gl_sampler_object
926 GLchar
*Label
; /**< GL_KHR_debug */
929 GLenum16 WrapS
; /**< S-axis texture image wrap mode */
930 GLenum16 WrapT
; /**< T-axis texture image wrap mode */
931 GLenum16 WrapR
; /**< R-axis texture image wrap mode */
932 GLenum16 MinFilter
; /**< minification filter */
933 GLenum16 MagFilter
; /**< magnification filter */
934 GLenum16 sRGBDecode
; /**< GL_DECODE_EXT or GL_SKIP_DECODE_EXT */
935 union gl_color_union BorderColor
; /**< Interpreted according to texture format */
936 GLfloat MinLod
; /**< min lambda, OpenGL 1.2 */
937 GLfloat MaxLod
; /**< max lambda, OpenGL 1.2 */
938 GLfloat LodBias
; /**< OpenGL 1.4 */
939 GLfloat MaxAnisotropy
; /**< GL_EXT_texture_filter_anisotropic */
940 GLenum16 CompareMode
; /**< GL_ARB_shadow */
941 GLenum16 CompareFunc
; /**< GL_ARB_shadow */
942 GLboolean CubeMapSeamless
; /**< GL_AMD_seamless_cubemap_per_texture */
944 /** GL_ARB_bindless_texture */
945 bool HandleAllocated
;
946 struct util_dynarray Handles
;
951 * Texture object state. Contains the array of mipmap images, border color,
952 * wrap modes, filter modes, and shadow/texcompare state.
954 struct gl_texture_object
956 simple_mtx_t Mutex
; /**< for thread safety */
957 GLint RefCount
; /**< reference count */
958 GLuint Name
; /**< the user-visible texture object ID */
959 GLenum16 Target
; /**< GL_TEXTURE_1D, GL_TEXTURE_2D, etc. */
960 GLenum16 DepthMode
; /**< GL_ARB_depth_texture */
961 GLchar
*Label
; /**< GL_KHR_debug */
963 struct gl_sampler_object Sampler
;
965 gl_texture_index TargetIndex
; /**< The gl_texture_unit::CurrentTex index.
966 Only valid when Target is valid. */
967 GLfloat Priority
; /**< in [0,1] */
968 GLint MaxLevel
; /**< max mipmap level (max=1000), OpenGL 1.2 */
969 GLint BaseLevel
; /**< min mipmap level, OpenGL 1.2 */
970 GLbyte _MaxLevel
; /**< actual max mipmap level (q in the spec) */
971 GLfloat _MaxLambda
; /**< = _MaxLevel - BaseLevel (q - p in spec) */
972 GLint CropRect
[4]; /**< GL_OES_draw_texture */
973 GLenum Swizzle
[4]; /**< GL_EXT_texture_swizzle */
974 GLushort _Swizzle
; /**< same as Swizzle, but SWIZZLE_* format */
975 GLbyte ImmutableLevels
; /**< ES 3.0 / ARB_texture_view */
976 GLboolean GenerateMipmap
; /**< GL_SGIS_generate_mipmap */
977 GLboolean _BaseComplete
; /**< Is the base texture level valid? */
978 GLboolean _MipmapComplete
; /**< Is the whole mipmap valid? */
979 GLboolean _IsIntegerFormat
; /**< Does the texture store integer values? */
980 GLboolean _RenderToTexture
; /**< Any rendering to this texture? */
981 GLboolean Purgeable
; /**< Is the buffer purgeable under memory
983 GLboolean Immutable
; /**< GL_ARB_texture_storage */
984 GLboolean _IsFloat
; /**< GL_OES_float_texture */
985 GLboolean _IsHalfFloat
; /**< GL_OES_half_float_texture */
986 bool StencilSampling
; /**< Should we sample stencil instead of depth? */
987 bool HandleAllocated
; /**< GL_ARB_bindless_texture */
989 /** GL_OES_EGL_image_external */
990 GLubyte RequiredTextureImageUnits
;
992 GLubyte MinLevel
; /**< GL_ARB_texture_view */
993 GLubyte NumLevels
; /**< GL_ARB_texture_view */
994 GLushort MinLayer
; /**< GL_ARB_texture_view */
995 GLushort NumLayers
; /**< GL_ARB_texture_view */
997 /** GL_EXT_memory_object */
998 GLenum16 TextureTiling
;
1000 /** GL_ARB_shader_image_load_store */
1001 GLenum16 ImageFormatCompatibilityType
;
1003 /** GL_ARB_texture_buffer_object */
1004 GLenum16 BufferObjectFormat
;
1005 /** Equivalent Mesa format for BufferObjectFormat. */
1006 mesa_format _BufferObjectFormat
;
1007 struct gl_buffer_object
*BufferObject
;
1009 /** GL_ARB_texture_buffer_range */
1010 GLintptr BufferOffset
;
1011 GLsizeiptr BufferSize
; /**< if this is -1, use BufferObject->Size instead */
1013 /** Actual texture images, indexed by [cube face] and [mipmap level] */
1014 struct gl_texture_image
*Image
[MAX_FACES
][MAX_TEXTURE_LEVELS
];
1016 /** GL_ARB_bindless_texture */
1017 struct util_dynarray SamplerHandles
;
1018 struct util_dynarray ImageHandles
;
1022 /** Up to four combiner sources are possible with GL_NV_texture_env_combine4 */
1023 #define MAX_COMBINER_TERMS 4
1027 * Texture combine environment state.
1029 struct gl_tex_env_combine_state
1031 GLenum16 ModeRGB
; /**< GL_REPLACE, GL_DECAL, GL_ADD, etc. */
1032 GLenum16 ModeA
; /**< GL_REPLACE, GL_DECAL, GL_ADD, etc. */
1033 /** Source terms: GL_PRIMARY_COLOR, GL_TEXTURE, etc */
1034 GLenum16 SourceRGB
[MAX_COMBINER_TERMS
];
1035 GLenum16 SourceA
[MAX_COMBINER_TERMS
];
1036 /** Source operands: GL_SRC_COLOR, GL_ONE_MINUS_SRC_COLOR, etc */
1037 GLenum16 OperandRGB
[MAX_COMBINER_TERMS
];
1038 GLenum16 OperandA
[MAX_COMBINER_TERMS
];
1039 GLubyte ScaleShiftRGB
; /**< 0, 1 or 2 */
1040 GLubyte ScaleShiftA
; /**< 0, 1 or 2 */
1041 GLubyte _NumArgsRGB
; /**< Number of inputs used for the RGB combiner */
1042 GLubyte _NumArgsA
; /**< Number of inputs used for the A combiner */
1046 /** Compressed TexEnv effective Combine mode */
1047 enum gl_tex_env_mode
1049 TEXENV_MODE_REPLACE
, /* r = a0 */
1050 TEXENV_MODE_MODULATE
, /* r = a0 * a1 */
1051 TEXENV_MODE_ADD
, /* r = a0 + a1 */
1052 TEXENV_MODE_ADD_SIGNED
, /* r = a0 + a1 - 0.5 */
1053 TEXENV_MODE_INTERPOLATE
, /* r = a0 * a2 + a1 * (1 - a2) */
1054 TEXENV_MODE_SUBTRACT
, /* r = a0 - a1 */
1055 TEXENV_MODE_DOT3_RGB
, /* r = a0 . a1 */
1056 TEXENV_MODE_DOT3_RGB_EXT
, /* r = a0 . a1 */
1057 TEXENV_MODE_DOT3_RGBA
, /* r = a0 . a1 */
1058 TEXENV_MODE_DOT3_RGBA_EXT
, /* r = a0 . a1 */
1059 TEXENV_MODE_MODULATE_ADD_ATI
, /* r = a0 * a2 + a1 */
1060 TEXENV_MODE_MODULATE_SIGNED_ADD_ATI
, /* r = a0 * a2 + a1 - 0.5 */
1061 TEXENV_MODE_MODULATE_SUBTRACT_ATI
, /* r = a0 * a2 - a1 */
1062 TEXENV_MODE_ADD_PRODUCTS_NV
, /* r = a0 * a1 + a2 * a3 */
1063 TEXENV_MODE_ADD_PRODUCTS_SIGNED_NV
, /* r = a0 * a1 + a2 * a3 - 0.5 */
1067 /** Compressed TexEnv Combine source */
1068 enum gl_tex_env_source
1070 TEXENV_SRC_TEXTURE0
,
1071 TEXENV_SRC_TEXTURE1
,
1072 TEXENV_SRC_TEXTURE2
,
1073 TEXENV_SRC_TEXTURE3
,
1074 TEXENV_SRC_TEXTURE4
,
1075 TEXENV_SRC_TEXTURE5
,
1076 TEXENV_SRC_TEXTURE6
,
1077 TEXENV_SRC_TEXTURE7
,
1079 TEXENV_SRC_PREVIOUS
,
1080 TEXENV_SRC_PRIMARY_COLOR
,
1081 TEXENV_SRC_CONSTANT
,
1087 /** Compressed TexEnv Combine operand */
1088 enum gl_tex_env_operand
1091 TEXENV_OPR_ONE_MINUS_COLOR
,
1093 TEXENV_OPR_ONE_MINUS_ALPHA
,
1097 /** Compressed TexEnv Combine argument */
1098 struct gl_tex_env_argument
1101 __extension__
uint8_t Source
:4; /**< TEXENV_SRC_x */
1102 __extension__
uint8_t Operand
:2; /**< TEXENV_OPR_x */
1104 uint8_t Source
; /**< SRC_x */
1105 uint8_t Operand
; /**< OPR_x */
1111 * Compressed TexEnv Combine state.
1113 struct gl_tex_env_combine_packed
1115 uint32_t ModeRGB
:4; /**< Effective mode for RGB as 4 bits */
1116 uint32_t ModeA
:4; /**< Effective mode for RGB as 4 bits */
1117 uint32_t ScaleShiftRGB
:2; /**< 0, 1 or 2 */
1118 uint32_t ScaleShiftA
:2; /**< 0, 1 or 2 */
1119 uint32_t NumArgsRGB
:3; /**< Number of inputs used for the RGB combiner */
1120 uint32_t NumArgsA
:3; /**< Number of inputs used for the A combiner */
1121 /** Source arguments in a packed manner */
1122 struct gl_tex_env_argument ArgsRGB
[MAX_COMBINER_TERMS
];
1123 struct gl_tex_env_argument ArgsA
[MAX_COMBINER_TERMS
];
1128 * TexGenEnabled flags.
1135 #define STR_BITS (S_BIT | T_BIT | R_BIT)
1140 * Bit flag versions of the corresponding GL_ constants.
1143 #define TEXGEN_SPHERE_MAP 0x1
1144 #define TEXGEN_OBJ_LINEAR 0x2
1145 #define TEXGEN_EYE_LINEAR 0x4
1146 #define TEXGEN_REFLECTION_MAP_NV 0x8
1147 #define TEXGEN_NORMAL_MAP_NV 0x10
1149 #define TEXGEN_NEED_NORMALS (TEXGEN_SPHERE_MAP | \
1150 TEXGEN_REFLECTION_MAP_NV | \
1151 TEXGEN_NORMAL_MAP_NV)
1152 #define TEXGEN_NEED_EYE_COORD (TEXGEN_SPHERE_MAP | \
1153 TEXGEN_REFLECTION_MAP_NV | \
1154 TEXGEN_NORMAL_MAP_NV | \
1160 /** Tex-gen enabled for texture unit? */
1161 #define ENABLE_TEXGEN(unit) (1 << (unit))
1163 /** Non-identity texture matrix for texture unit? */
1164 #define ENABLE_TEXMAT(unit) (1 << (unit))
1168 * Texture coord generation state.
1172 GLenum16 Mode
; /**< GL_EYE_LINEAR, GL_SPHERE_MAP, etc */
1173 GLbitfield8 _ModeBit
; /**< TEXGEN_x bit corresponding to Mode */
1174 GLfloat ObjectPlane
[4];
1175 GLfloat EyePlane
[4];
1180 * Sampler-related subset of a texture unit, like current texture objects.
1182 struct gl_texture_unit
1184 GLfloat LodBias
; /**< for biasing mipmap levels */
1186 /** Texture targets that have a non-default texture bound */
1187 GLbitfield _BoundTextures
;
1189 /** Current sampler object (GL_ARB_sampler_objects) */
1190 struct gl_sampler_object
*Sampler
;
1192 /** Current texture object pointers */
1193 struct gl_texture_object
*CurrentTex
[NUM_TEXTURE_TARGETS
];
1195 /** Points to highest priority, complete and enabled texture object */
1196 struct gl_texture_object
*_Current
;
1201 * Fixed-function-related subset of a texture unit, like enable flags,
1202 * texture environment/function/combiners, and texgen state.
1204 struct gl_fixedfunc_texture_unit
1206 GLbitfield16 Enabled
; /**< bitmask of TEXTURE_*_BIT flags */
1208 GLenum16 EnvMode
; /**< GL_MODULATE, GL_DECAL, GL_BLEND, etc. */
1209 GLclampf EnvColor
[4];
1210 GLfloat EnvColorUnclamped
[4];
1212 struct gl_texgen GenS
;
1213 struct gl_texgen GenT
;
1214 struct gl_texgen GenR
;
1215 struct gl_texgen GenQ
;
1216 GLbitfield8 TexGenEnabled
; /**< Bitwise-OR of [STRQ]_BIT values */
1217 GLbitfield8 _GenFlags
; /**< Bitwise-OR of Gen[STRQ]._ModeBit */
1220 * \name GL_EXT_texture_env_combine
1222 struct gl_tex_env_combine_state Combine
;
1225 * Derived state based on \c EnvMode and the \c BaseFormat of the
1226 * currently enabled texture.
1228 struct gl_tex_env_combine_state _EnvMode
;
1230 /** Current compressed TexEnv & Combine state */
1231 struct gl_tex_env_combine_packed _CurrentCombinePacked
;
1234 * Currently enabled combiner state. This will point to either
1235 * \c Combine or \c _EnvMode.
1237 struct gl_tex_env_combine_state
*_CurrentCombine
;
1242 * Texture attribute group (GL_TEXTURE_BIT).
1244 struct gl_texture_attrib
1246 struct gl_texture_object
*ProxyTex
[NUM_TEXTURE_TARGETS
];
1248 /** GL_ARB_texture_buffer_object */
1249 struct gl_buffer_object
*BufferObject
;
1251 GLuint CurrentUnit
; /**< GL_ACTIVE_TEXTURE */
1253 /** Texture coord units/sets used for fragment texturing */
1254 GLbitfield8 _EnabledCoordUnits
;
1256 /** Texture coord units that have texgen enabled */
1257 GLbitfield8 _TexGenEnabled
;
1259 /** Texture coord units that have non-identity matrices */
1260 GLbitfield8 _TexMatEnabled
;
1262 /** Bitwise-OR of all Texture.Unit[i]._GenFlags */
1263 GLbitfield8 _GenFlags
;
1265 /** Largest index of a texture unit with _Current != NULL. */
1266 GLshort _MaxEnabledTexImageUnit
;
1268 /** Largest index + 1 of texture units that have had any CurrentTex set. */
1269 GLubyte NumCurrentTexUsed
;
1271 /** GL_ARB_seamless_cubemap */
1272 GLboolean CubeMapSeamless
;
1274 struct gl_texture_unit Unit
[MAX_COMBINED_TEXTURE_IMAGE_UNITS
];
1275 struct gl_fixedfunc_texture_unit FixedFuncUnit
[MAX_TEXTURE_COORD_UNITS
];
1280 * Data structure representing a single clip plane (e.g. one of the elements
1281 * of the ctx->Transform.EyeUserPlane or ctx->Transform._ClipUserPlane array).
1283 typedef GLfloat gl_clip_plane
[4];
1287 * Transformation attribute group (GL_TRANSFORM_BIT).
1289 struct gl_transform_attrib
1291 GLenum16 MatrixMode
; /**< Matrix mode */
1292 gl_clip_plane EyeUserPlane
[MAX_CLIP_PLANES
]; /**< User clip planes */
1293 gl_clip_plane _ClipUserPlane
[MAX_CLIP_PLANES
]; /**< derived */
1294 GLbitfield ClipPlanesEnabled
; /**< on/off bitmask */
1295 GLboolean Normalize
; /**< Normalize all normals? */
1296 GLboolean RescaleNormals
; /**< GL_EXT_rescale_normal */
1297 GLboolean RasterPositionUnclipped
; /**< GL_IBM_rasterpos_clip */
1298 GLboolean DepthClampNear
; /**< GL_AMD_depth_clamp_separate */
1299 GLboolean DepthClampFar
; /**< GL_AMD_depth_clamp_separate */
1300 /** GL_ARB_clip_control */
1301 GLenum16 ClipOrigin
; /**< GL_LOWER_LEFT or GL_UPPER_LEFT */
1302 GLenum16 ClipDepthMode
;/**< GL_NEGATIVE_ONE_TO_ONE or GL_ZERO_TO_ONE */
1307 * Viewport attribute group (GL_VIEWPORT_BIT).
1309 struct gl_viewport_attrib
1311 GLfloat X
, Y
; /**< position */
1312 GLfloat Width
, Height
; /**< size */
1313 GLfloat Near
, Far
; /**< Depth buffer range */
1318 * Fields describing a mapped buffer range.
1320 struct gl_buffer_mapping
1322 GLbitfield AccessFlags
; /**< Mask of GL_MAP_x_BIT flags */
1323 GLvoid
*Pointer
; /**< User-space address of mapping */
1324 GLintptr Offset
; /**< Mapped offset */
1325 GLsizeiptr Length
; /**< Mapped length */
1330 * Usages we've seen for a buffer object.
1334 USAGE_UNIFORM_BUFFER
= 0x1,
1335 USAGE_TEXTURE_BUFFER
= 0x2,
1336 USAGE_ATOMIC_COUNTER_BUFFER
= 0x4,
1337 USAGE_SHADER_STORAGE_BUFFER
= 0x8,
1338 USAGE_TRANSFORM_FEEDBACK_BUFFER
= 0x10,
1339 USAGE_PIXEL_PACK_BUFFER
= 0x20,
1340 USAGE_ARRAY_BUFFER
= 0x40,
1341 USAGE_ELEMENT_ARRAY_BUFFER
= 0x80,
1342 USAGE_DISABLE_MINMAX_CACHE
= 0x100,
1347 * GL_ARB_vertex/pixel_buffer_object buffer object
1349 struct gl_buffer_object
1353 GLchar
*Label
; /**< GL_KHR_debug */
1354 GLenum16 Usage
; /**< GL_STREAM_DRAW_ARB, GL_STREAM_READ_ARB, etc. */
1355 GLbitfield StorageFlags
; /**< GL_MAP_PERSISTENT_BIT, etc. */
1356 GLsizeiptrARB Size
; /**< Size of buffer storage in bytes */
1357 GLubyte
*Data
; /**< Location of storage either in RAM or VRAM. */
1358 GLboolean DeletePending
; /**< true if buffer object is removed from the hash */
1359 GLboolean Written
; /**< Ever written to? (for debugging) */
1360 GLboolean Purgeable
; /**< Is the buffer purgeable under memory pressure? */
1361 GLboolean Immutable
; /**< GL_ARB_buffer_storage */
1362 gl_buffer_usage UsageHistory
; /**< How has this buffer been used so far? */
1364 /** Counters used for buffer usage warnings */
1365 GLuint NumSubDataCalls
;
1366 GLuint NumMapBufferWriteCalls
;
1368 struct gl_buffer_mapping Mappings
[MAP_COUNT
];
1370 /** Memoization of min/max index computations for static index buffers */
1371 simple_mtx_t MinMaxCacheMutex
;
1372 struct hash_table
*MinMaxCache
;
1373 unsigned MinMaxCacheHitIndices
;
1374 unsigned MinMaxCacheMissIndices
;
1375 bool MinMaxCacheDirty
;
1377 bool HandleAllocated
; /**< GL_ARB_bindless_texture */
1382 * Client pixel packing/unpacking attributes
1384 struct gl_pixelstore_attrib
1392 GLboolean SwapBytes
;
1394 GLboolean Invert
; /**< GL_MESA_pack_invert */
1395 GLint CompressedBlockWidth
; /**< GL_ARB_compressed_texture_pixel_storage */
1396 GLint CompressedBlockHeight
;
1397 GLint CompressedBlockDepth
;
1398 GLint CompressedBlockSize
;
1399 struct gl_buffer_object
*BufferObj
; /**< GL_ARB_pixel_buffer_object */
1404 * Enum for defining the mapping for the position/generic0 attribute.
1406 * Do not change the order of the values as these are used as
1411 ATTRIBUTE_MAP_MODE_IDENTITY
, /**< 1:1 mapping */
1412 ATTRIBUTE_MAP_MODE_POSITION
, /**< get position and generic0 from position */
1413 ATTRIBUTE_MAP_MODE_GENERIC0
, /**< get position and generic0 from generic0 */
1414 ATTRIBUTE_MAP_MODE_MAX
/**< for sizing arrays */
1415 } gl_attribute_map_mode
;
1419 * Attributes to describe a vertex array.
1421 * Contains the size, type, format and normalization flag,
1422 * along with the index of a vertex buffer binding point.
1424 * Note that the Stride field corresponds to VERTEX_ATTRIB_ARRAY_STRIDE
1425 * and is only present for backwards compatibility reasons.
1426 * Rendering always uses VERTEX_BINDING_STRIDE.
1427 * The gl*Pointer() functions will set VERTEX_ATTRIB_ARRAY_STRIDE
1428 * and VERTEX_BINDING_STRIDE to the same value, while
1429 * glBindVertexBuffer() will only set VERTEX_BINDING_STRIDE.
1431 struct gl_array_attributes
1433 /** Points to client array data. Not used when a VBO is bound */
1435 /** Offset of the first element relative to the binding offset */
1436 GLuint RelativeOffset
;
1437 /** Vertex format */
1438 struct gl_vertex_format Format
;
1439 /** Stride as specified with gl*Pointer() */
1441 /** Index into gl_vertex_array_object::BufferBinding[] array */
1442 GLubyte BufferBindingIndex
;
1445 * Derived effective buffer binding index
1447 * Index into the gl_vertex_buffer_binding array of the vao.
1448 * Similar to BufferBindingIndex, but with the mapping of the
1449 * position/generic0 attributes applied and with identical
1450 * gl_vertex_buffer_binding entries collapsed to a single
1451 * entry within the vao.
1453 * The value is valid past calling _mesa_update_vao_derived_arrays.
1454 * Note that _mesa_update_vao_derived_arrays is called when binding
1455 * the VAO to Array._DrawVAO.
1457 GLubyte _EffBufferBindingIndex
;
1459 * Derived effective relative offset.
1461 * Relative offset to the effective buffers offset in
1462 * gl_vertex_buffer_binding::_EffOffset.
1464 * The value is valid past calling _mesa_update_vao_derived_arrays.
1465 * Note that _mesa_update_vao_derived_arrays is called when binding
1466 * the VAO to Array._DrawVAO.
1468 GLushort _EffRelativeOffset
;
1473 * This describes the buffer object used for a vertex array (or
1474 * multiple vertex arrays). If BufferObj points to the default/null
1475 * buffer object, then the vertex array lives in user memory and not a VBO.
1477 struct gl_vertex_buffer_binding
1479 GLintptr Offset
; /**< User-specified offset */
1480 GLsizei Stride
; /**< User-specified stride */
1481 GLuint InstanceDivisor
; /**< GL_ARB_instanced_arrays */
1482 struct gl_buffer_object
*BufferObj
; /**< GL_ARB_vertex_buffer_object */
1483 GLbitfield _BoundArrays
; /**< Arrays bound to this binding point */
1486 * Derived effective bound arrays.
1488 * The effective binding handles enabled arrays past the
1489 * position/generic0 attribute mapping and reduces the refered
1490 * gl_vertex_buffer_binding entries to a unique subset.
1492 * The value is valid past calling _mesa_update_vao_derived_arrays.
1493 * Note that _mesa_update_vao_derived_arrays is called when binding
1494 * the VAO to Array._DrawVAO.
1496 GLbitfield _EffBoundArrays
;
1500 * The absolute offset to that we can collapse some attributes
1501 * to this unique effective binding.
1502 * For user space array bindings this contains the smallest pointer value
1503 * in the bound and interleaved arrays.
1504 * For VBO bindings this contains an offset that lets the attributes
1505 * _EffRelativeOffset stay positive and in bounds with
1506 * Const.MaxVertexAttribRelativeOffset
1508 * The value is valid past calling _mesa_update_vao_derived_arrays.
1509 * Note that _mesa_update_vao_derived_arrays is called when binding
1510 * the VAO to Array._DrawVAO.
1512 GLintptr _EffOffset
;
1517 * A representation of "Vertex Array Objects" (VAOs) from OpenGL 3.1+ /
1518 * the GL_ARB_vertex_array_object extension.
1520 struct gl_vertex_array_object
1522 /** Name of the VAO as received from glGenVertexArray. */
1527 GLchar
*Label
; /**< GL_KHR_debug */
1530 * Has this array object been bound?
1532 GLboolean EverBound
;
1535 * Marked to true if the object is shared between contexts and immutable.
1536 * Then reference counting is done using atomics and thread safe.
1537 * Is used for dlist VAOs.
1539 bool SharedAndImmutable
;
1541 /** Vertex attribute arrays */
1542 struct gl_array_attributes VertexAttrib
[VERT_ATTRIB_MAX
];
1544 /** Vertex buffer bindings */
1545 struct gl_vertex_buffer_binding BufferBinding
[VERT_ATTRIB_MAX
];
1547 /** Mask indicating which vertex arrays have vertex buffer associated. */
1548 GLbitfield VertexAttribBufferMask
;
1550 /** Mask indicating which vertex arrays have a non-zero instance divisor. */
1551 GLbitfield NonZeroDivisorMask
;
1553 /** Mask of VERT_BIT_* values indicating which arrays are enabled */
1557 * Mask of VERT_BIT_* enabled arrays past position/generic0 mapping
1559 * The value is valid past calling _mesa_update_vao_derived_arrays.
1560 * Note that _mesa_update_vao_derived_arrays is called when binding
1561 * the VAO to Array._DrawVAO.
1563 GLbitfield _EffEnabledVBO
;
1565 /** Same as _EffEnabledVBO, but for instance divisors. */
1566 GLbitfield _EffEnabledNonZeroDivisor
;
1568 /** Denotes the way the position/generic0 attribute is mapped */
1569 gl_attribute_map_mode _AttributeMapMode
;
1571 /** Mask of VERT_BIT_* values indicating changed/dirty arrays */
1572 GLbitfield NewArrays
;
1574 /** The index buffer (also known as the element array buffer in OpenGL). */
1575 struct gl_buffer_object
*IndexBufferObj
;
1580 * Vertex array state
1582 struct gl_array_attrib
1584 /** Currently bound array object. */
1585 struct gl_vertex_array_object
*VAO
;
1587 /** The default vertex array object */
1588 struct gl_vertex_array_object
*DefaultVAO
;
1590 /** The last VAO accessed by a DSA function */
1591 struct gl_vertex_array_object
*LastLookedUpVAO
;
1593 /** Array objects (GL_ARB_vertex_array_object) */
1594 struct _mesa_HashTable
*Objects
;
1596 GLint ActiveTexture
; /**< Client Active Texture */
1597 GLuint LockFirst
; /**< GL_EXT_compiled_vertex_array */
1598 GLuint LockCount
; /**< GL_EXT_compiled_vertex_array */
1601 * \name Primitive restart controls
1603 * Primitive restart is enabled if either \c PrimitiveRestart or
1604 * \c PrimitiveRestartFixedIndex is set.
1607 GLboolean PrimitiveRestart
;
1608 GLboolean PrimitiveRestartFixedIndex
;
1609 GLboolean _PrimitiveRestart
;
1610 GLuint RestartIndex
;
1613 /* GL_ARB_vertex_buffer_object */
1614 struct gl_buffer_object
*ArrayBufferObj
;
1617 * Vertex array object that is used with the currently active draw command.
1618 * The _DrawVAO is either set to the currently bound VAO for array type
1619 * draws or to internal VAO's set up by the vbo module to execute immediate
1620 * mode or display list draws.
1622 struct gl_vertex_array_object
*_DrawVAO
;
1624 * The VERT_BIT_* bits effectively enabled from the current _DrawVAO.
1625 * This is always a subset of _mesa_get_vao_vp_inputs(_DrawVAO)
1626 * but may omit those arrays that shall not be referenced by the current
1627 * gl_vertex_program_state::_VPMode. For example the generic attributes are
1628 * maked out form the _DrawVAO's enabled arrays when a fixed function
1629 * array draw is executed.
1631 GLbitfield _DrawVAOEnabledAttribs
;
1633 * Initially or if the VAO referenced by _DrawVAO is deleted the _DrawVAO
1634 * pointer is set to the _EmptyVAO which is just an empty VAO all the time.
1636 struct gl_vertex_array_object
*_EmptyVAO
;
1638 /** Legal array datatypes and the API for which they have been computed */
1639 GLbitfield LegalTypesMask
;
1640 gl_api LegalTypesMaskAPI
;
1645 * Feedback buffer state
1650 GLbitfield _Mask
; /**< FB_* bits */
1658 * Selection buffer state
1662 GLuint
*Buffer
; /**< selection buffer */
1663 GLuint BufferSize
; /**< size of the selection buffer */
1664 GLuint BufferCount
; /**< number of values in the selection buffer */
1665 GLuint Hits
; /**< number of records in the selection buffer */
1666 GLuint NameStackDepth
; /**< name stack depth */
1667 GLuint NameStack
[MAX_NAME_STACK_DEPTH
]; /**< name stack */
1668 GLboolean HitFlag
; /**< hit flag */
1669 GLfloat HitMinZ
; /**< minimum hit depth */
1670 GLfloat HitMaxZ
; /**< maximum hit depth */
1675 * 1-D Evaluator control points
1679 GLuint Order
; /**< Number of control points */
1680 GLfloat u1
, u2
, du
; /**< u1, u2, 1.0/(u2-u1) */
1681 GLfloat
*Points
; /**< Points to contiguous control points */
1686 * 2-D Evaluator control points
1690 GLuint Uorder
; /**< Number of control points in U dimension */
1691 GLuint Vorder
; /**< Number of control points in V dimension */
1694 GLfloat
*Points
; /**< Points to contiguous control points */
1699 * All evaluator control point state
1701 struct gl_evaluators
1707 struct gl_1d_map Map1Vertex3
;
1708 struct gl_1d_map Map1Vertex4
;
1709 struct gl_1d_map Map1Index
;
1710 struct gl_1d_map Map1Color4
;
1711 struct gl_1d_map Map1Normal
;
1712 struct gl_1d_map Map1Texture1
;
1713 struct gl_1d_map Map1Texture2
;
1714 struct gl_1d_map Map1Texture3
;
1715 struct gl_1d_map Map1Texture4
;
1722 struct gl_2d_map Map2Vertex3
;
1723 struct gl_2d_map Map2Vertex4
;
1724 struct gl_2d_map Map2Index
;
1725 struct gl_2d_map Map2Color4
;
1726 struct gl_2d_map Map2Normal
;
1727 struct gl_2d_map Map2Texture1
;
1728 struct gl_2d_map Map2Texture2
;
1729 struct gl_2d_map Map2Texture3
;
1730 struct gl_2d_map Map2Texture4
;
1735 struct gl_transform_feedback_varying_info
1746 * Per-output info vertex shaders for transform feedback.
1748 struct gl_transform_feedback_output
1750 uint32_t OutputRegister
;
1751 uint32_t OutputBuffer
;
1752 uint32_t NumComponents
;
1755 /** offset (in DWORDs) of this output within the interleaved structure */
1759 * Offset into the output register of the data to output. For example,
1760 * if NumComponents is 2 and ComponentOffset is 1, then the data to
1761 * offset is in the y and z components of the output register.
1763 uint32_t ComponentOffset
;
1767 struct gl_transform_feedback_buffer
1771 uint32_t NumVaryings
;
1774 * Total number of components stored in each buffer. This may be used by
1775 * hardware back-ends to determine the correct stride when interleaving
1776 * multiple transform feedback outputs in the same buffer.
1781 * Which transform feedback stream this buffer binding is associated with.
1787 /** Post-link transform feedback info. */
1788 struct gl_transform_feedback_info
1790 unsigned NumOutputs
;
1792 /* Bitmask of active buffer indices. */
1793 unsigned ActiveBuffers
;
1795 struct gl_transform_feedback_output
*Outputs
;
1797 /** Transform feedback varyings used for the linking of this shader program.
1799 * Use for glGetTransformFeedbackVarying().
1801 struct gl_transform_feedback_varying_info
*Varyings
;
1804 struct gl_transform_feedback_buffer Buffers
[MAX_FEEDBACK_BUFFERS
];
1809 * Transform feedback object state
1811 struct gl_transform_feedback_object
1813 GLuint Name
; /**< AKA the object ID */
1815 GLchar
*Label
; /**< GL_KHR_debug */
1816 GLboolean Active
; /**< Is transform feedback enabled? */
1817 GLboolean Paused
; /**< Is transform feedback paused? */
1818 GLboolean EndedAnytime
; /**< Has EndTransformFeedback been called
1820 GLboolean EverBound
; /**< Has this object been bound? */
1823 * GLES: if Active is true, remaining number of primitives which can be
1824 * rendered without overflow. This is necessary to track because GLES
1825 * requires us to generate INVALID_OPERATION if a call to glDrawArrays or
1826 * glDrawArraysInstanced would overflow transform feedback buffers.
1827 * Undefined if Active is false.
1829 * Not tracked for desktop GL since it's unnecessary.
1831 unsigned GlesRemainingPrims
;
1834 * The program active when BeginTransformFeedback() was called.
1835 * When active and unpaused, this equals ctx->Shader.CurrentProgram[stage],
1836 * where stage is the pipeline stage that is the source of data for
1837 * transform feedback.
1839 struct gl_program
*program
;
1841 /** The feedback buffers */
1842 GLuint BufferNames
[MAX_FEEDBACK_BUFFERS
];
1843 struct gl_buffer_object
*Buffers
[MAX_FEEDBACK_BUFFERS
];
1845 /** Start of feedback data in dest buffer */
1846 GLintptr Offset
[MAX_FEEDBACK_BUFFERS
];
1849 * Max data to put into dest buffer (in bytes). Computed based on
1850 * RequestedSize and the actual size of the buffer.
1852 GLsizeiptr Size
[MAX_FEEDBACK_BUFFERS
];
1855 * Size that was specified when the buffer was bound. If the buffer was
1856 * bound with glBindBufferBase() or glBindBufferOffsetEXT(), this value is
1859 GLsizeiptr RequestedSize
[MAX_FEEDBACK_BUFFERS
];
1864 * Context state for transform feedback.
1866 struct gl_transform_feedback_state
1868 GLenum16 Mode
; /**< GL_POINTS, GL_LINES or GL_TRIANGLES */
1870 /** The general binding point (GL_TRANSFORM_FEEDBACK_BUFFER) */
1871 struct gl_buffer_object
*CurrentBuffer
;
1873 /** The table of all transform feedback objects */
1874 struct _mesa_HashTable
*Objects
;
1876 /** The current xform-fb object (GL_TRANSFORM_FEEDBACK_BINDING) */
1877 struct gl_transform_feedback_object
*CurrentObject
;
1879 /** The default xform-fb object (Name==0) */
1880 struct gl_transform_feedback_object
*DefaultObject
;
1885 * A "performance monitor" as described in AMD_performance_monitor.
1887 struct gl_perf_monitor_object
1891 /** True if the monitor is currently active (Begin called but not End). */
1895 * True if the monitor has ended.
1897 * This is distinct from !Active because it may never have began.
1902 * A list of groups with currently active counters.
1904 * ActiveGroups[g] == n if there are n counters active from group 'g'.
1906 unsigned *ActiveGroups
;
1909 * An array of bitsets, subscripted by group ID, then indexed by counter ID.
1911 * Checking whether counter 'c' in group 'g' is active can be done via:
1913 * BITSET_TEST(ActiveCounters[g], c)
1915 GLuint
**ActiveCounters
;
1919 union gl_perf_monitor_counter_value
1927 struct gl_perf_monitor_counter
1929 /** Human readable name for the counter. */
1933 * Data type of the counter. Valid values are FLOAT, UNSIGNED_INT,
1934 * UNSIGNED_INT64_AMD, and PERCENTAGE_AMD.
1938 /** Minimum counter value. */
1939 union gl_perf_monitor_counter_value Minimum
;
1941 /** Maximum counter value. */
1942 union gl_perf_monitor_counter_value Maximum
;
1946 struct gl_perf_monitor_group
1948 /** Human readable name for the group. */
1952 * Maximum number of counters in this group which can be active at the
1955 GLuint MaxActiveCounters
;
1957 /** Array of counters within this group. */
1958 const struct gl_perf_monitor_counter
*Counters
;
1964 * A query object instance as described in INTEL_performance_query.
1966 * NB: We want to keep this and the corresponding backend structure
1967 * relatively lean considering that applications may expect to
1968 * allocate enough objects to be able to query around all draw calls
1971 struct gl_perf_query_object
1973 GLuint Id
; /**< hash table ID/name */
1974 unsigned Used
:1; /**< has been used for 1 or more queries */
1975 unsigned Active
:1; /**< inside Begin/EndPerfQuery */
1976 unsigned Ready
:1; /**< result is ready? */
1981 * Context state for AMD_performance_monitor.
1983 struct gl_perf_monitor_state
1985 /** Array of performance monitor groups (indexed by group ID) */
1986 const struct gl_perf_monitor_group
*Groups
;
1989 /** The table of all performance monitors. */
1990 struct _mesa_HashTable
*Monitors
;
1995 * Context state for INTEL_performance_query.
1997 struct gl_perf_query_state
1999 struct _mesa_HashTable
*Objects
; /**< The table of all performance query objects */
2004 * A bindless sampler object.
2006 struct gl_bindless_sampler
2008 /** Texture unit (set by glUniform1()). */
2011 /** Whether this bindless sampler is bound to a unit. */
2014 /** Texture Target (TEXTURE_1D/2D/3D/etc_INDEX). */
2015 gl_texture_index target
;
2017 /** Pointer to the base of the data. */
2023 * A bindless image object.
2025 struct gl_bindless_image
2027 /** Image unit (set by glUniform1()). */
2030 /** Whether this bindless image is bound to a unit. */
2033 /** Access qualifier (GL_READ_WRITE, GL_READ_ONLY, GL_WRITE_ONLY, or
2034 * GL_NONE to indicate both read-only and write-only)
2038 /** Pointer to the base of the data. */
2044 * Current vertex processing mode: fixed function vs. shader.
2045 * In reality, fixed function is probably implemented by a shader but that's
2046 * not what we care about here.
2050 VP_MODE_FF
, /**< legacy / fixed function */
2051 VP_MODE_SHADER
, /**< ARB vertex program or GLSL vertex shader */
2052 VP_MODE_MAX
/**< for sizing arrays */
2053 } gl_vertex_processing_mode
;
2057 * Base class for any kind of program object
2061 /** FIXME: This must be first until we split shader_info from nir_shader */
2062 struct shader_info info
;
2066 GLubyte
*String
; /**< Null-terminated program text */
2068 /** GL_VERTEX/FRAGMENT_PROGRAM_ARB, GL_GEOMETRY_PROGRAM_NV */
2070 GLenum16 Format
; /**< String encoding format */
2072 GLboolean _Used
; /**< Ever used for drawing? Used for debugging */
2074 struct nir_shader
*nir
;
2076 /* Saved and restored with metadata. Freed with ralloc. */
2077 void *driver_cache_blob
;
2078 size_t driver_cache_blob_size
;
2080 bool is_arb_asm
; /** Is this an ARB assembly-style program */
2082 /** Is this program written to on disk shader cache */
2083 bool program_written_to_cache
;
2085 /** A bitfield indicating which vertex shader inputs consume two slots
2087 * This is used for mapping from single-slot input locations in the GL API
2088 * to dual-slot double input locations in the shader. This field is set
2089 * once as part of linking and never updated again to ensure the mapping
2090 * remains consistent.
2092 * Note: There may be dual-slot variables in the original shader source
2093 * which do not appear in this bitfield due to having been eliminated by
2094 * the compiler prior to DualSlotInputs being calculated. There may also
2095 * be bits set in this bitfield which are set but which the shader never
2096 * reads due to compiler optimizations eliminating such variables after
2097 * DualSlotInputs is calculated.
2099 GLbitfield64 DualSlotInputs
;
2100 /** Subset of OutputsWritten outputs written with non-zero index. */
2101 GLbitfield64 SecondaryOutputsWritten
;
2102 /** TEXTURE_x_BIT bitmask */
2103 GLbitfield16 TexturesUsed
[MAX_COMBINED_TEXTURE_IMAGE_UNITS
];
2104 /** Bitfield of which samplers are used */
2105 GLbitfield SamplersUsed
;
2106 /** Texture units used for shadow sampling. */
2107 GLbitfield ShadowSamplers
;
2108 /** Texture units used for samplerExternalOES */
2109 GLbitfield ExternalSamplersUsed
;
2111 /** Named parameters, constants, etc. from program text */
2112 struct gl_program_parameter_list
*Parameters
;
2114 /** Map from sampler unit to texture unit (set by glUniform1i()) */
2115 GLubyte SamplerUnits
[MAX_SAMPLERS
];
2117 /* FIXME: We should be able to make this struct a union. However some
2118 * drivers (i915/fragment_programs, swrast/prog_execute) mix the use of
2119 * these fields, we should fix this.
2122 /** Fields used by GLSL programs */
2124 /** Data shared by gl_program and gl_shader_program */
2125 struct gl_shader_program_data
*data
;
2127 struct gl_active_atomic_buffer
**AtomicBuffers
;
2129 /** Post-link transform feedback info. */
2130 struct gl_transform_feedback_info
*LinkedTransformFeedback
;
2133 * Number of types for subroutine uniforms.
2135 GLuint NumSubroutineUniformTypes
;
2138 * Subroutine uniform remap table
2139 * based on the program level uniform remap table.
2141 GLuint NumSubroutineUniforms
; /* non-sparse total */
2142 GLuint NumSubroutineUniformRemapTable
;
2143 struct gl_uniform_storage
**SubroutineUniformRemapTable
;
2146 * Num of subroutine functions for this stage and storage for them.
2148 GLuint NumSubroutineFunctions
;
2149 GLuint MaxSubroutineFunctionIndex
;
2150 struct gl_subroutine_function
*SubroutineFunctions
;
2153 * Map from image uniform index to image unit (set by glUniform1i())
2155 * An image uniform index is associated with each image uniform by
2156 * the linker. The image index associated with each uniform is
2157 * stored in the \c gl_uniform_storage::image field.
2159 GLubyte ImageUnits
[MAX_IMAGE_UNIFORMS
];
2162 * Access qualifier specified in the shader for each image uniform
2163 * index. Either \c GL_READ_ONLY, \c GL_WRITE_ONLY, \c
2164 * GL_READ_WRITE, or \c GL_NONE to indicate both read-only and
2167 * It may be different, though only more strict than the value of
2168 * \c gl_image_unit::Access for the corresponding image unit.
2170 GLenum16 ImageAccess
[MAX_IMAGE_UNIFORMS
];
2172 struct gl_uniform_block
**UniformBlocks
;
2173 struct gl_uniform_block
**ShaderStorageBlocks
;
2176 * Bitmask of shader storage blocks not declared as read-only.
2178 unsigned ShaderStorageBlocksWriteAccess
;
2180 /** Which texture target is being sampled
2181 * (TEXTURE_1D/2D/3D/etc_INDEX)
2183 GLubyte SamplerTargets
[MAX_SAMPLERS
];
2186 * Number of samplers declared with the bindless_sampler layout
2187 * qualifier as specified by ARB_bindless_texture.
2189 GLuint NumBindlessSamplers
;
2190 GLboolean HasBoundBindlessSampler
;
2191 struct gl_bindless_sampler
*BindlessSamplers
;
2194 * Number of images declared with the bindless_image layout qualifier
2195 * as specified by ARB_bindless_texture.
2197 GLuint NumBindlessImages
;
2198 GLboolean HasBoundBindlessImage
;
2199 struct gl_bindless_image
*BindlessImages
;
2204 * A bitmask of gl_advanced_blend_mode values
2206 GLbitfield BlendSupport
;
2211 /** ARB assembly-style program fields */
2213 struct prog_instruction
*Instructions
;
2216 * Local parameters used by the program.
2218 * It's dynamically allocated because it is rarely used (just
2219 * assembly-style programs), and MAX_PROGRAM_LOCAL_PARAMS entries
2220 * once it's allocated.
2222 GLfloat (*LocalParams
)[4];
2224 /** Bitmask of which register files are read/written with indirect
2225 * addressing. Mask of (1 << PROGRAM_x) bits.
2227 GLbitfield IndirectRegisterFiles
;
2229 /** Logical counts */
2231 GLuint NumInstructions
;
2232 GLuint NumTemporaries
;
2233 GLuint NumParameters
;
2234 GLuint NumAttributes
;
2235 GLuint NumAddressRegs
;
2236 GLuint NumAluInstructions
;
2237 GLuint NumTexInstructions
;
2238 GLuint NumTexIndirections
;
2240 /** Native, actual h/w counts */
2242 GLuint NumNativeInstructions
;
2243 GLuint NumNativeTemporaries
;
2244 GLuint NumNativeParameters
;
2245 GLuint NumNativeAttributes
;
2246 GLuint NumNativeAddressRegs
;
2247 GLuint NumNativeAluInstructions
;
2248 GLuint NumNativeTexInstructions
;
2249 GLuint NumNativeTexIndirections
;
2252 /** Used by ARB assembly-style programs. Can only be true for vertex
2255 GLboolean IsPositionInvariant
;
2262 * State common to vertex and fragment programs.
2264 struct gl_program_state
2266 GLint ErrorPos
; /* GL_PROGRAM_ERROR_POSITION_ARB/NV */
2267 const char *ErrorString
; /* GL_PROGRAM_ERROR_STRING_ARB/NV */
2272 * Context state for vertex programs.
2274 struct gl_vertex_program_state
2276 GLboolean Enabled
; /**< User-set GL_VERTEX_PROGRAM_ARB/NV flag */
2277 GLboolean PointSizeEnabled
; /**< GL_VERTEX_PROGRAM_POINT_SIZE_ARB/NV */
2278 GLboolean TwoSideEnabled
; /**< GL_VERTEX_PROGRAM_TWO_SIDE_ARB/NV */
2279 /** Should fixed-function T&L be implemented with a vertex prog? */
2280 GLboolean _MaintainTnlProgram
;
2282 struct gl_program
*Current
; /**< User-bound vertex program */
2284 /** Currently enabled and valid vertex program (including internal
2285 * programs, user-defined vertex programs and GLSL vertex shaders).
2286 * This is the program we must use when rendering.
2288 struct gl_program
*_Current
;
2290 GLfloat Parameters
[MAX_PROGRAM_ENV_PARAMS
][4]; /**< Env params */
2292 /** Program to emulate fixed-function T&L (see above) */
2293 struct gl_program
*_TnlProgram
;
2295 /** Cache of fixed-function programs */
2296 struct gl_program_cache
*Cache
;
2298 GLboolean _Overriden
;
2301 * If we have a vertex program, a TNL program or no program at all.
2302 * Note that this value should be kept up to date all the time,
2303 * nevertheless its correctness is asserted in _mesa_update_state.
2304 * The reason is to avoid calling _mesa_update_state twice we need
2305 * this value on draw *before* actually calling _mesa_update_state.
2306 * Also it should need to get recomputed only on changes to the
2307 * vertex program which are heavyweight already.
2309 gl_vertex_processing_mode _VPMode
;
2313 * Context state for tessellation control programs.
2315 struct gl_tess_ctrl_program_state
2317 /** Currently bound and valid shader. */
2318 struct gl_program
*_Current
;
2320 GLint patch_vertices
;
2321 GLfloat patch_default_outer_level
[4];
2322 GLfloat patch_default_inner_level
[2];
2326 * Context state for tessellation evaluation programs.
2328 struct gl_tess_eval_program_state
2330 /** Currently bound and valid shader. */
2331 struct gl_program
*_Current
;
2335 * Context state for geometry programs.
2337 struct gl_geometry_program_state
2340 * Currently enabled and valid program (including internal programs
2341 * and compiled shader programs).
2343 struct gl_program
*_Current
;
2347 * Context state for fragment programs.
2349 struct gl_fragment_program_state
2351 GLboolean Enabled
; /**< User-set fragment program enable flag */
2352 /** Should fixed-function texturing be implemented with a fragment prog? */
2353 GLboolean _MaintainTexEnvProgram
;
2355 struct gl_program
*Current
; /**< User-bound fragment program */
2358 * Currently enabled and valid fragment program (including internal
2359 * programs, user-defined fragment programs and GLSL fragment shaders).
2360 * This is the program we must use when rendering.
2362 struct gl_program
*_Current
;
2364 GLfloat Parameters
[MAX_PROGRAM_ENV_PARAMS
][4]; /**< Env params */
2366 /** Program to emulate fixed-function texture env/combine (see above) */
2367 struct gl_program
*_TexEnvProgram
;
2369 /** Cache of fixed-function programs */
2370 struct gl_program_cache
*Cache
;
2375 * Context state for compute programs.
2377 struct gl_compute_program_state
2379 /** Currently enabled and valid program (including internal programs
2380 * and compiled shader programs).
2382 struct gl_program
*_Current
;
2387 * ATI_fragment_shader runtime state
2390 struct atifs_instruction
;
2391 struct atifs_setupinst
;
2394 * ATI fragment shader
2396 struct ati_fragment_shader
2400 struct atifs_instruction
*Instructions
[2];
2401 struct atifs_setupinst
*SetupInst
[2];
2402 GLfloat Constants
[8][4];
2403 GLbitfield LocalConstDef
; /**< Indicates which constants have been set */
2404 GLubyte numArithInstr
[2];
2405 GLubyte regsAssigned
[2];
2406 GLubyte NumPasses
; /**< 1 or 2 */
2408 * Current compile stage: 0 setup pass1, 1 arith pass1,
2409 * 2 setup pass2, 3 arith pass2.
2412 GLubyte last_optype
;
2413 GLboolean interpinp1
;
2416 * Array of 2 bit values for each tex unit to remember whether
2417 * STR or STQ swizzle was used
2420 struct gl_program
*Program
;
2424 * Context state for GL_ATI_fragment_shader
2426 struct gl_ati_fragment_shader_state
2429 GLboolean Compiling
;
2430 GLfloat GlobalConstants
[8][4];
2431 struct ati_fragment_shader
*Current
;
2435 * Shader subroutine function definition
2437 struct gl_subroutine_function
2441 int num_compat_types
;
2442 const struct glsl_type
**types
;
2446 * Shader information needed by both gl_shader and gl_linked shader.
2448 struct gl_shader_info
2451 * Tessellation Control shader state from layout qualifiers.
2455 * 0 - vertices not declared in shader, or
2456 * 1 .. GL_MAX_PATCH_VERTICES
2462 * Tessellation Evaluation shader state from layout qualifiers.
2466 * GL_TRIANGLES, GL_QUADS, GL_ISOLINES or PRIM_UNKNOWN if it's not set
2469 GLenum16 PrimitiveMode
;
2471 enum gl_tess_spacing Spacing
;
2474 * GL_CW, GL_CCW, or 0 if it's not set in this shader.
2476 GLenum16 VertexOrder
;
2478 * 1, 0, or -1 if it's not set in this shader.
2484 * Geometry shader state from GLSL 1.50 layout qualifiers.
2489 * 0 - Invocations count not declared in shader, or
2490 * 1 .. Const.MaxGeometryShaderInvocations
2494 * GL_POINTS, GL_LINES, GL_LINES_ADJACENCY, GL_TRIANGLES, or
2495 * GL_TRIANGLES_ADJACENCY, or PRIM_UNKNOWN if it's not set in this
2500 * GL_POINTS, GL_LINE_STRIP or GL_TRIANGLE_STRIP, or PRIM_UNKNOWN if
2501 * it's not set in this shader.
2503 GLenum16 OutputType
;
2507 * Compute shader state from ARB_compute_shader and
2508 * ARB_compute_variable_group_size layout qualifiers.
2512 * Size specified using local_size_{x,y,z}, or all 0's to indicate that
2513 * it's not set in this shader.
2515 unsigned LocalSize
[3];
2518 * Whether a variable work group size has been specified as defined by
2519 * ARB_compute_variable_group_size.
2521 bool LocalSizeVariable
;
2524 * Arrangement of invocations used to calculate derivatives in a compute
2525 * shader. From NV_compute_shader_derivatives.
2527 enum gl_derivative_group DerivativeGroup
;
2532 * A linked GLSL shader object.
2534 struct gl_linked_shader
2536 gl_shader_stage Stage
;
2539 unsigned SourceChecksum
;
2542 struct gl_program
*Program
; /**< Post-compile assembly code */
2545 * \name Sampler tracking
2547 * \note Each of these fields is only set post-linking.
2550 GLbitfield shadow_samplers
; /**< Samplers used for shadow sampling. */
2554 * Number of default uniform block components used by this shader.
2556 * This field is only set post-linking.
2558 unsigned num_uniform_components
;
2561 * Number of combined uniform components used by this shader.
2563 * This field is only set post-linking. It is the sum of the uniform block
2564 * sizes divided by sizeof(float), and num_uniform_compoennts.
2566 unsigned num_combined_uniform_components
;
2568 struct exec_list
*ir
;
2569 struct exec_list
*packed_varyings
;
2570 struct exec_list
*fragdata_arrays
;
2571 struct glsl_symbol_table
*symbols
;
2574 * ARB_gl_spirv related data.
2576 * This is actually a reference to the gl_shader::spirv_data, which
2577 * stores information that is also needed during linking.
2579 struct gl_shader_spirv_data
*spirv_data
;
2584 * Compile status enum. COMPILE_SKIPPED is used to indicate the compile
2585 * was skipped due to the shader matching one that's been seen before by
2586 * the on-disk cache.
2588 enum gl_compile_status
2590 COMPILE_FAILURE
= 0,
2596 * A GLSL shader object.
2600 /** GL_FRAGMENT_SHADER || GL_VERTEX_SHADER || GL_GEOMETRY_SHADER_ARB ||
2601 * GL_TESS_CONTROL_SHADER || GL_TESS_EVALUATION_SHADER.
2602 * Must be the first field.
2605 gl_shader_stage Stage
;
2606 GLuint Name
; /**< AKA the handle */
2607 GLint RefCount
; /**< Reference count */
2608 GLchar
*Label
; /**< GL_KHR_debug */
2609 unsigned char sha1
[20]; /**< SHA1 hash of pre-processed source */
2610 GLboolean DeletePending
;
2611 bool IsES
; /**< True if this shader uses GLSL ES */
2613 enum gl_compile_status CompileStatus
;
2616 unsigned SourceChecksum
; /**< for debug/logging purposes */
2618 const GLchar
*Source
; /**< Source code string */
2620 const GLchar
*FallbackSource
; /**< Fallback string used by on-disk cache*/
2624 unsigned Version
; /**< GLSL version used for linking */
2627 * A bitmask of gl_advanced_blend_mode values
2629 GLbitfield BlendSupport
;
2631 struct exec_list
*ir
;
2632 struct glsl_symbol_table
*symbols
;
2635 * Whether early fragment tests are enabled as defined by
2636 * ARB_shader_image_load_store.
2638 bool EarlyFragmentTests
;
2640 bool ARB_fragment_coord_conventions_enable
;
2642 bool redeclares_gl_fragcoord
;
2643 bool uses_gl_fragcoord
;
2645 bool PostDepthCoverage
;
2646 bool PixelInterlockOrdered
;
2647 bool PixelInterlockUnordered
;
2648 bool SampleInterlockOrdered
;
2649 bool SampleInterlockUnordered
;
2653 * Fragment shader state from GLSL 1.50 layout qualifiers.
2655 bool origin_upper_left
;
2656 bool pixel_center_integer
;
2659 * Whether bindless_sampler/bindless_image, and respectively
2660 * bound_sampler/bound_image are declared at global scope as defined by
2661 * ARB_bindless_texture.
2663 bool bindless_sampler
;
2664 bool bindless_image
;
2668 /** Global xfb_stride out qualifier if any */
2669 GLuint TransformFeedbackBufferStride
[MAX_FEEDBACK_BUFFERS
];
2671 struct gl_shader_info info
;
2673 /* ARB_gl_spirv related data */
2674 struct gl_shader_spirv_data
*spirv_data
;
2678 struct gl_uniform_buffer_variable
2683 * Name of the uniform as seen by glGetUniformIndices.
2685 * glGetUniformIndices requires that the block instance index \b not be
2686 * present in the name of queried uniforms.
2689 * \c gl_uniform_buffer_variable::IndexName and
2690 * \c gl_uniform_buffer_variable::Name may point to identical storage.
2694 const struct glsl_type
*Type
;
2695 unsigned int Offset
;
2700 struct gl_uniform_block
2702 /** Declared name of the uniform block */
2705 /** Array of supplemental information about UBO ir_variables. */
2706 struct gl_uniform_buffer_variable
*Uniforms
;
2710 * Index (GL_UNIFORM_BLOCK_BINDING) into ctx->UniformBufferBindings[] to use
2711 * with glBindBufferBase to bind a buffer object to this uniform block.
2716 * Minimum size (in bytes) of a buffer object to back this uniform buffer
2717 * (GL_UNIFORM_BLOCK_DATA_SIZE).
2719 GLuint UniformBufferSize
;
2721 /** Stages that reference this block */
2725 * Linearized array index for uniform block instance arrays
2727 * Given a uniform block instance array declared with size
2728 * blk[s_0][s_1]..[s_m], the block referenced by blk[i_0][i_1]..[i_m] will
2729 * have the linearized array index
2732 * i_m + ∑ i_j * ∏ s_k
2735 * For a uniform block instance that is not an array, this is always 0.
2737 uint8_t linearized_array_index
;
2740 * Layout specified in the shader
2742 * This isn't accessible through the API, but it is used while
2743 * cross-validating uniform blocks.
2745 enum glsl_interface_packing _Packing
;
2746 GLboolean _RowMajor
;
2750 * Structure that represents a reference to an atomic buffer from some
2753 struct gl_active_atomic_buffer
2755 /** Uniform indices of the atomic counters declared within it. */
2759 /** Binding point index associated with it. */
2762 /** Minimum reasonable size it is expected to have. */
2765 /** Shader stages making use of it. */
2766 GLboolean StageReferences
[MESA_SHADER_STAGES
];
2770 * Data container for shader queries. This holds only the minimal
2771 * amount of required information for resource queries to work.
2773 struct gl_shader_variable
2776 * Declared type of the variable
2778 const struct glsl_type
*type
;
2781 * If the variable is in an interface block, this is the type of the block.
2783 const struct glsl_type
*interface_type
;
2786 * For variables inside structs (possibly recursively), this is the
2787 * outermost struct type.
2789 const struct glsl_type
*outermost_struct_type
;
2792 * Declared name of the variable
2797 * Storage location of the base of this variable
2799 * The precise meaning of this field depends on the nature of the variable.
2801 * - Vertex shader input: one of the values from \c gl_vert_attrib.
2802 * - Vertex shader output: one of the values from \c gl_varying_slot.
2803 * - Geometry shader input: one of the values from \c gl_varying_slot.
2804 * - Geometry shader output: one of the values from \c gl_varying_slot.
2805 * - Fragment shader input: one of the values from \c gl_varying_slot.
2806 * - Fragment shader output: one of the values from \c gl_frag_result.
2807 * - Uniforms: Per-stage uniform slot number for default uniform block.
2808 * - Uniforms: Index within the uniform block definition for UBO members.
2809 * - Non-UBO Uniforms: explicit location until linking then reused to
2810 * store uniform slot number.
2811 * - Other: This field is not currently used.
2813 * If the variable is a uniform, shader input, or shader output, and the
2814 * slot has not been assigned, the value will be -1.
2819 * Specifies the first component the variable is stored in as per
2820 * ARB_enhanced_layouts.
2822 unsigned component
:2;
2825 * Output index for dual source blending.
2828 * The GLSL spec only allows the values 0 or 1 for the index in \b dual
2834 * Specifies whether a shader input/output is per-patch in tessellation
2840 * Storage class of the variable.
2842 * \sa (n)ir_variable_mode
2847 * Interpolation mode for shader inputs / outputs
2849 * \sa glsl_interp_mode
2851 unsigned interpolation
:2;
2854 * Was the location explicitly set in the shader?
2856 * If the location is explicitly set in the shader, it \b cannot be changed
2857 * by the linker or by the API (e.g., calls to \c glBindAttribLocation have
2860 unsigned explicit_location
:1;
2863 * Precision qualifier.
2865 unsigned precision
:2;
2869 * Active resource in a gl_shader_program
2871 struct gl_program_resource
2873 GLenum16 Type
; /** Program interface type. */
2874 const void *Data
; /** Pointer to resource associated data structure. */
2875 uint8_t StageReferences
; /** Bitmask of shader stage references. */
2879 * Link status enum. LINKING_SKIPPED is used to indicate linking
2880 * was skipped due to the shader being loaded from the on-disk cache.
2884 LINKING_FAILURE
= 0,
2890 * A data structure to be shared by gl_shader_program and gl_program.
2892 struct gl_shader_program_data
2894 GLint RefCount
; /**< Reference count */
2896 /** SHA1 hash of linked shader program */
2897 unsigned char sha1
[20];
2899 unsigned NumUniformStorage
;
2900 unsigned NumHiddenUniforms
;
2901 struct gl_uniform_storage
*UniformStorage
;
2903 unsigned NumUniformBlocks
;
2904 unsigned NumShaderStorageBlocks
;
2906 struct gl_uniform_block
*UniformBlocks
;
2907 struct gl_uniform_block
*ShaderStorageBlocks
;
2909 struct gl_active_atomic_buffer
*AtomicBuffers
;
2910 unsigned NumAtomicBuffers
;
2912 /* Shader cache variables used during restore */
2913 unsigned NumUniformDataSlots
;
2914 union gl_constant_value
*UniformDataSlots
;
2916 /* Used to hold initial uniform values for program binary restores.
2918 * From the ARB_get_program_binary spec:
2920 * "A successful call to ProgramBinary will reset all uniform
2921 * variables to their initial values. The initial value is either
2922 * the value of the variable's initializer as specified in the
2923 * original shader source, or 0 if no initializer was present.
2925 union gl_constant_value
*UniformDataDefaults
;
2927 /** Hash for quick search by name. */
2928 struct hash_table_u64
*ProgramResourceHash
;
2930 GLboolean Validated
;
2932 /** List of all active resources after linking. */
2933 struct gl_program_resource
*ProgramResourceList
;
2934 unsigned NumProgramResourceList
;
2936 enum gl_link_status LinkStatus
; /**< GL_LINK_STATUS */
2939 unsigned Version
; /**< GLSL version used for linking */
2941 /* Mask of stages this program was linked against */
2942 unsigned linked_stages
;
2944 /* Whether the shaders of this program are loaded from SPIR-V binaries
2945 * (all have the SPIR_V_BINARY_ARB state). This was introduced by the
2946 * ARB_gl_spirv extension.
2952 * A GLSL program object.
2953 * Basically a linked collection of vertex and fragment shaders.
2955 struct gl_shader_program
2957 GLenum16 Type
; /**< Always GL_SHADER_PROGRAM (internal token) */
2958 GLuint Name
; /**< aka handle or ID */
2959 GLchar
*Label
; /**< GL_KHR_debug */
2960 GLint RefCount
; /**< Reference count */
2961 GLboolean DeletePending
;
2964 * Is the application intending to glGetProgramBinary this program?
2966 * BinaryRetrievableHint is the currently active hint that gets set
2967 * during initialization and after linking and BinaryRetrievableHintPending
2968 * is the hint set by the user to be active when program is linked next time.
2970 GLboolean BinaryRetrievableHint
;
2971 GLboolean BinaryRetrievableHintPending
;
2974 * Indicates whether program can be bound for individual pipeline stages
2975 * using UseProgramStages after it is next linked.
2977 GLboolean SeparateShader
;
2979 GLuint NumShaders
; /**< number of attached shaders */
2980 struct gl_shader
**Shaders
; /**< List of attached the shaders */
2983 * User-defined attribute bindings
2985 * These are set via \c glBindAttribLocation and are used to direct the
2986 * GLSL linker. These are \b not the values used in the compiled shader,
2987 * and they are \b not the values returned by \c glGetAttribLocation.
2989 struct string_to_uint_map
*AttributeBindings
;
2992 * User-defined fragment data bindings
2994 * These are set via \c glBindFragDataLocation and are used to direct the
2995 * GLSL linker. These are \b not the values used in the compiled shader,
2996 * and they are \b not the values returned by \c glGetFragDataLocation.
2998 struct string_to_uint_map
*FragDataBindings
;
2999 struct string_to_uint_map
*FragDataIndexBindings
;
3002 * Transform feedback varyings last specified by
3003 * glTransformFeedbackVaryings().
3005 * For the current set of transform feedback varyings used for transform
3006 * feedback output, see LinkedTransformFeedback.
3009 GLenum16 BufferMode
;
3010 /** Global xfb_stride out qualifier if any */
3011 GLuint BufferStride
[MAX_FEEDBACK_BUFFERS
];
3013 GLchar
**VaryingNames
; /**< Array [NumVarying] of char * */
3014 } TransformFeedback
;
3016 struct gl_program
*last_vert_prog
;
3018 /** Post-link gl_FragDepth layout for ARB_conservative_depth. */
3019 enum gl_frag_depth_layout FragDepthLayout
;
3022 * Geometry shader state - copied into gl_program by
3023 * _mesa_copy_linked_program_data().
3028 bool UsesEndPrimitive
;
3033 * Compute shader state - copied into gl_program by
3034 * _mesa_copy_linked_program_data().
3038 * Size of shared variables accessed by the compute shader.
3040 unsigned SharedSize
;
3043 /** Data shared by gl_program and gl_shader_program */
3044 struct gl_shader_program_data
*data
;
3047 * Mapping from GL uniform locations returned by \c glUniformLocation to
3048 * UniformStorage entries. Arrays will have multiple contiguous slots
3049 * in the UniformRemapTable, all pointing to the same UniformStorage entry.
3051 unsigned NumUniformRemapTable
;
3052 struct gl_uniform_storage
**UniformRemapTable
;
3055 * Sometimes there are empty slots left over in UniformRemapTable after we
3056 * allocate slots to explicit locations. This list stores the blocks of
3057 * continuous empty slots inside UniformRemapTable.
3059 struct exec_list EmptyUniformLocations
;
3062 * Total number of explicit uniform location including inactive uniforms.
3064 unsigned NumExplicitUniformLocations
;
3067 * Map of active uniform names to locations
3069 * Maps any active uniform that is not an array element to a location.
3070 * Each active uniform, including individual structure members will appear
3071 * in this map. This roughly corresponds to the set of names that would be
3072 * enumerated by \c glGetActiveUniform.
3074 struct string_to_uint_map
*UniformHash
;
3076 GLboolean SamplersValidated
; /**< Samplers validated against texture units? */
3078 bool IsES
; /**< True if this program uses GLSL ES */
3081 * Per-stage shaders resulting from the first stage of linking.
3083 * Set of linked shaders for this program. The array is accessed using the
3084 * \c MESA_SHADER_* defines. Entries for non-existent stages will be
3087 struct gl_linked_shader
*_LinkedShaders
[MESA_SHADER_STAGES
];
3090 * True if any of the fragment shaders attached to this program use:
3091 * #extension ARB_fragment_coord_conventions: enable
3093 GLboolean ARB_fragment_coord_conventions_enable
;
3097 #define GLSL_DUMP 0x1 /**< Dump shaders to stdout */
3098 #define GLSL_LOG 0x2 /**< Write shaders to files */
3099 #define GLSL_UNIFORMS 0x4 /**< Print glUniform calls */
3100 #define GLSL_NOP_VERT 0x8 /**< Force no-op vertex shaders */
3101 #define GLSL_NOP_FRAG 0x10 /**< Force no-op fragment shaders */
3102 #define GLSL_USE_PROG 0x20 /**< Log glUseProgram calls */
3103 #define GLSL_REPORT_ERRORS 0x40 /**< Print compilation errors */
3104 #define GLSL_DUMP_ON_ERROR 0x80 /**< Dump shaders to stderr on compile error */
3105 #define GLSL_CACHE_INFO 0x100 /**< Print debug information about shader cache */
3106 #define GLSL_CACHE_FALLBACK 0x200 /**< Force shader cache fallback paths */
3110 * Context state for GLSL vertex/fragment shaders.
3111 * Extended to support pipeline object
3113 struct gl_pipeline_object
3115 /** Name of the pipeline object as received from glGenProgramPipelines.
3116 * It would be 0 for shaders without separate shader objects.
3122 GLchar
*Label
; /**< GL_KHR_debug */
3125 * Programs used for rendering
3127 * There is a separate program set for each shader stage.
3129 struct gl_program
*CurrentProgram
[MESA_SHADER_STAGES
];
3131 struct gl_shader_program
*ReferencedPrograms
[MESA_SHADER_STAGES
];
3134 * Program used by glUniform calls.
3136 * Explicitly set by \c glUseProgram and \c glActiveProgramEXT.
3138 struct gl_shader_program
*ActiveProgram
;
3140 GLbitfield Flags
; /**< Mask of GLSL_x flags */
3141 GLboolean EverBound
; /**< Has the pipeline object been created */
3142 GLboolean Validated
; /**< Pipeline Validation status */
3148 * Context state for GLSL pipeline shaders.
3150 struct gl_pipeline_shader_state
3152 /** Currently bound pipeline object. See _mesa_BindProgramPipeline() */
3153 struct gl_pipeline_object
*Current
;
3155 /** Default Object to ensure that _Shader is never NULL */
3156 struct gl_pipeline_object
*Default
;
3158 /** Pipeline objects */
3159 struct _mesa_HashTable
*Objects
;
3163 * Compiler options for a single GLSL shaders type
3165 struct gl_shader_compiler_options
3167 /** Driver-selectable options: */
3168 GLboolean EmitNoLoops
;
3169 GLboolean EmitNoCont
; /**< Emit CONT opcode? */
3170 GLboolean EmitNoMainReturn
; /**< Emit CONT/RET opcodes? */
3171 GLboolean EmitNoPow
; /**< Emit POW opcodes? */
3172 GLboolean EmitNoSat
; /**< Emit SAT opcodes? */
3173 GLboolean LowerCombinedClipCullDistance
; /** Lower gl_ClipDistance and
3174 * gl_CullDistance together from
3175 * float[8] to vec4[2]
3177 GLbitfield LowerBuiltinVariablesXfb
; /**< Which builtin variables should
3178 * be lowered for transform feedback
3182 * \name Forms of indirect addressing the driver cannot do.
3185 GLboolean EmitNoIndirectInput
; /**< No indirect addressing of inputs */
3186 GLboolean EmitNoIndirectOutput
; /**< No indirect addressing of outputs */
3187 GLboolean EmitNoIndirectTemp
; /**< No indirect addressing of temps */
3188 GLboolean EmitNoIndirectUniform
; /**< No indirect addressing of constants */
3189 GLboolean EmitNoIndirectSampler
; /**< No indirect addressing of samplers */
3192 GLuint MaxIfDepth
; /**< Maximum nested IF blocks */
3193 GLuint MaxUnrollIterations
;
3196 * Optimize code for array of structures backends.
3198 * This is a proxy for:
3199 * - preferring DP4 instructions (rather than MUL/MAD) for
3200 * matrix * vector operations, such as position transformation.
3202 GLboolean OptimizeForAOS
;
3204 /** Lower UBO and SSBO access to intrinsics. */
3205 GLboolean LowerBufferInterfaceBlocks
;
3207 /** Clamp UBO and SSBO block indices so they don't go out-of-bounds. */
3208 GLboolean ClampBlockIndicesToArrayBounds
;
3210 /** (driconf) Force gl_Position to be considered invariant */
3211 GLboolean PositionAlwaysInvariant
;
3213 const struct nir_shader_compiler_options
*NirOptions
;
3218 * Occlusion/timer query object.
3220 struct gl_query_object
3222 GLenum16 Target
; /**< The query target, when active */
3223 GLuint Id
; /**< hash table ID/name */
3224 GLchar
*Label
; /**< GL_KHR_debug */
3225 GLuint64EXT Result
; /**< the counter */
3226 GLboolean Active
; /**< inside Begin/EndQuery */
3227 GLboolean Ready
; /**< result is ready? */
3228 GLboolean EverBound
;/**< has query object ever been bound */
3229 GLuint Stream
; /**< The stream */
3234 * Context state for query objects.
3236 struct gl_query_state
3238 struct _mesa_HashTable
*QueryObjects
;
3239 struct gl_query_object
*CurrentOcclusionObject
; /* GL_ARB_occlusion_query */
3240 struct gl_query_object
*CurrentTimerObject
; /* GL_EXT_timer_query */
3242 /** GL_NV_conditional_render */
3243 struct gl_query_object
*CondRenderQuery
;
3245 /** GL_EXT_transform_feedback */
3246 struct gl_query_object
*PrimitivesGenerated
[MAX_VERTEX_STREAMS
];
3247 struct gl_query_object
*PrimitivesWritten
[MAX_VERTEX_STREAMS
];
3249 /** GL_ARB_transform_feedback_overflow_query */
3250 struct gl_query_object
*TransformFeedbackOverflow
[MAX_VERTEX_STREAMS
];
3251 struct gl_query_object
*TransformFeedbackOverflowAny
;
3253 /** GL_ARB_timer_query */
3254 struct gl_query_object
*TimeElapsed
;
3256 /** GL_ARB_pipeline_statistics_query */
3257 struct gl_query_object
*pipeline_stats
[MAX_PIPELINE_STATISTICS
];
3259 GLenum16 CondRenderMode
;
3263 /** Sync object state */
3264 struct gl_sync_object
3266 GLuint Name
; /**< Fence name */
3267 GLint RefCount
; /**< Reference count */
3268 GLchar
*Label
; /**< GL_KHR_debug */
3269 GLboolean DeletePending
; /**< Object was deleted while there were still
3270 * live references (e.g., sync not yet finished)
3272 GLenum16 SyncCondition
;
3273 GLbitfield Flags
; /**< Flags passed to glFenceSync */
3274 GLuint StatusFlag
:1; /**< Has the sync object been signaled? */
3279 * State which can be shared by multiple contexts:
3281 struct gl_shared_state
3283 simple_mtx_t Mutex
; /**< for thread safety */
3284 GLint RefCount
; /**< Reference count */
3285 struct _mesa_HashTable
*DisplayList
; /**< Display lists hash table */
3286 struct _mesa_HashTable
*BitmapAtlas
; /**< For optimized glBitmap text */
3287 struct _mesa_HashTable
*TexObjects
; /**< Texture objects hash table */
3289 /** Default texture objects (shared by all texture units) */
3290 struct gl_texture_object
*DefaultTex
[NUM_TEXTURE_TARGETS
];
3292 /** Fallback texture used when a bound texture is incomplete */
3293 struct gl_texture_object
*FallbackTex
[NUM_TEXTURE_TARGETS
];
3296 * \name Thread safety and statechange notification for texture
3299 * \todo Improve the granularity of locking.
3302 mtx_t TexMutex
; /**< texobj thread safety */
3303 GLuint TextureStateStamp
; /**< state notification for shared tex */
3306 /** Default buffer object for vertex arrays that aren't in VBOs */
3307 struct gl_buffer_object
*NullBufferObj
;
3310 * \name Vertex/geometry/fragment programs
3313 struct _mesa_HashTable
*Programs
; /**< All vertex/fragment programs */
3314 struct gl_program
*DefaultVertexProgram
;
3315 struct gl_program
*DefaultFragmentProgram
;
3318 /* GL_ATI_fragment_shader */
3319 struct _mesa_HashTable
*ATIShaders
;
3320 struct ati_fragment_shader
*DefaultFragmentShader
;
3322 struct _mesa_HashTable
*BufferObjects
;
3324 /** Table of both gl_shader and gl_shader_program objects */
3325 struct _mesa_HashTable
*ShaderObjects
;
3327 /* GL_EXT_framebuffer_object */
3328 struct _mesa_HashTable
*RenderBuffers
;
3329 struct _mesa_HashTable
*FrameBuffers
;
3332 struct set
*SyncObjects
;
3334 /** GL_ARB_sampler_objects */
3335 struct _mesa_HashTable
*SamplerObjects
;
3337 /* GL_ARB_bindless_texture */
3338 struct hash_table_u64
*TextureHandles
;
3339 struct hash_table_u64
*ImageHandles
;
3340 mtx_t HandlesMutex
; /**< For texture/image handles safety */
3342 /* GL_ARB_shading_language_include */
3343 struct shader_includes
*ShaderIncludes
;
3344 /* glCompileShaderInclude expects ShaderIncludes not to change while it is
3347 mtx_t ShaderIncludeMutex
;
3350 * Some context in this share group was affected by a GPU reset
3352 * On the next call to \c glGetGraphicsResetStatus, contexts that have not
3353 * been affected by a GPU reset must also return
3354 * \c GL_INNOCENT_CONTEXT_RESET_ARB.
3356 * Once this field becomes true, it is never reset to false.
3358 bool ShareGroupReset
;
3360 /** EXT_external_objects */
3361 struct _mesa_HashTable
*MemoryObjects
;
3363 /** EXT_semaphore */
3364 struct _mesa_HashTable
*SemaphoreObjects
;
3367 * Some context in this share group was affected by a disjoint
3368 * operation. This operation can be anything that has effects on
3369 * values of timer queries in such manner that they become invalid for
3370 * performance metrics. As example gpu reset, counter overflow or gpu
3371 * frequency changes.
3373 bool DisjointOperation
;
3379 * Renderbuffers represent drawing surfaces such as color, depth and/or
3380 * stencil. A framebuffer object has a set of renderbuffers.
3381 * Drivers will typically derive subclasses of this type.
3383 struct gl_renderbuffer
3385 simple_mtx_t Mutex
; /**< for thread safety */
3386 GLuint ClassID
; /**< Useful for drivers */
3388 GLchar
*Label
; /**< GL_KHR_debug */
3390 GLuint Width
, Height
;
3392 GLboolean Purgeable
; /**< Is the buffer purgeable under memory pressure? */
3393 GLboolean AttachedAnytime
; /**< TRUE if it was attached to a framebuffer */
3395 * True for renderbuffers that wrap textures, giving the driver a chance to
3396 * flush render caches through the FinishRenderTexture hook.
3398 * Drivers may also set this on renderbuffers other than those generated by
3399 * glFramebufferTexture(), though it means FinishRenderTexture() would be
3400 * called without a rb->TexImage.
3402 GLboolean NeedsFinishRenderTexture
;
3403 GLubyte NumSamples
; /**< zero means not multisampled */
3404 GLubyte NumStorageSamples
; /**< for AMD_framebuffer_multisample_advanced */
3405 GLenum16 InternalFormat
; /**< The user-specified format */
3406 GLenum16 _BaseFormat
; /**< Either GL_RGB, GL_RGBA, GL_DEPTH_COMPONENT or
3407 GL_STENCIL_INDEX. */
3408 mesa_format Format
; /**< The actual renderbuffer memory format */
3410 * Pointer to the texture image if this renderbuffer wraps a texture,
3413 * Note that the reference on the gl_texture_object containing this
3414 * TexImage is held by the gl_renderbuffer_attachment.
3416 struct gl_texture_image
*TexImage
;
3418 /** Delete this renderbuffer */
3419 void (*Delete
)(struct gl_context
*ctx
, struct gl_renderbuffer
*rb
);
3421 /** Allocate new storage for this renderbuffer */
3422 GLboolean (*AllocStorage
)(struct gl_context
*ctx
,
3423 struct gl_renderbuffer
*rb
,
3424 GLenum internalFormat
,
3425 GLuint width
, GLuint height
);
3430 * A renderbuffer attachment points to either a texture object (and specifies
3431 * a mipmap level, cube face or 3D texture slice) or points to a renderbuffer.
3433 struct gl_renderbuffer_attachment
3435 GLenum16 Type
; /**< \c GL_NONE or \c GL_TEXTURE or \c GL_RENDERBUFFER_EXT */
3439 * If \c Type is \c GL_RENDERBUFFER_EXT, this stores a pointer to the
3440 * application supplied renderbuffer object.
3442 struct gl_renderbuffer
*Renderbuffer
;
3445 * If \c Type is \c GL_TEXTURE, this stores a pointer to the application
3446 * supplied texture object.
3448 struct gl_texture_object
*Texture
;
3449 GLuint TextureLevel
; /**< Attached mipmap level. */
3450 GLsizei NumSamples
; /**< from FramebufferTexture2DMultisampleEXT */
3451 GLuint CubeMapFace
; /**< 0 .. 5, for cube map textures. */
3452 GLuint Zoffset
; /**< Slice for 3D textures, or layer for both 1D
3453 * and 2D array textures */
3459 * A framebuffer is a collection of renderbuffers (color, depth, stencil, etc).
3460 * In C++ terms, think of this as a base class from which device drivers
3461 * will make derived classes.
3463 struct gl_framebuffer
3465 simple_mtx_t Mutex
; /**< for thread safety */
3467 * If zero, this is a window system framebuffer. If non-zero, this
3468 * is a FBO framebuffer; note that for some devices (i.e. those with
3469 * a natural pixel coordinate system for FBOs that differs from the
3470 * OpenGL/Mesa coordinate system), this means that the viewport,
3471 * polygon face orientation, and polygon stipple will have to be inverted.
3476 GLchar
*Label
; /**< GL_KHR_debug */
3478 GLboolean DeletePending
;
3481 * The framebuffer's visual. Immutable if this is a window system buffer.
3482 * Computed from attachments if user-made FBO.
3484 struct gl_config Visual
;
3487 * Size of frame buffer in pixels. If there are no attachments, then both
3490 GLuint Width
, Height
;
3493 * In the case that the framebuffer has no attachment (i.e.
3494 * GL_ARB_framebuffer_no_attachments) then the geometry of
3495 * the framebuffer is specified by the default values.
3498 GLuint Width
, Height
, Layers
, NumSamples
;
3499 GLboolean FixedSampleLocations
;
3500 /* Derived from NumSamples by the driver so that it can choose a valid
3501 * value for the hardware.
3506 /** \name Drawing bounds (Intersection of buffer size and scissor box)
3507 * The drawing region is given by [_Xmin, _Xmax) x [_Ymin, _Ymax),
3508 * (inclusive for _Xmin and _Ymin while exclusive for _Xmax and _Ymax)
3515 /** \name Derived Z buffer stuff */
3517 GLuint _DepthMax
; /**< Max depth buffer value */
3518 GLfloat _DepthMaxF
; /**< Float max depth buffer value */
3519 GLfloat _MRD
; /**< minimum resolvable difference in Z values */
3522 /** One of the GL_FRAMEBUFFER_(IN)COMPLETE_* tokens */
3525 /** Whether one of Attachment has Type != GL_NONE
3526 * NOTE: the values for Width and Height are set to 0 in case of having
3527 * no attachments, a backend driver supporting the extension
3528 * GL_ARB_framebuffer_no_attachments must check for the flag _HasAttachments
3529 * and if GL_FALSE, must then use the values in DefaultGeometry to initialize
3530 * its viewport, scissor and so on (in particular _Xmin, _Xmax, _Ymin and
3531 * _Ymax do NOT take into account _HasAttachments being false). To get the
3532 * geometry of the framebuffer, the helper functions
3533 * _mesa_geometric_width(),
3534 * _mesa_geometric_height(),
3535 * _mesa_geometric_samples() and
3536 * _mesa_geometric_layers()
3537 * are available that check _HasAttachments.
3539 bool _HasAttachments
;
3541 GLbitfield _IntegerBuffers
; /**< Which color buffers are integer valued */
3542 GLbitfield _RGBBuffers
; /**< Which color buffers have baseformat == RGB */
3543 GLbitfield _FP32Buffers
; /**< Which color buffers are FP32 */
3545 /* ARB_color_buffer_float */
3546 GLboolean _AllColorBuffersFixedPoint
; /* no integer, no float */
3547 GLboolean _HasSNormOrFloatColorBuffer
;
3550 * The maximum number of layers in the framebuffer, or 0 if the framebuffer
3551 * is not layered. For cube maps and cube map arrays, each cube face
3552 * counts as a layer. As the case for Width, Height a backend driver
3553 * supporting GL_ARB_framebuffer_no_attachments must use DefaultGeometry
3554 * in the case that _HasAttachments is false
3556 GLuint MaxNumLayers
;
3558 /** Array of all renderbuffer attachments, indexed by BUFFER_* tokens. */
3559 struct gl_renderbuffer_attachment Attachment
[BUFFER_COUNT
];
3561 /* In unextended OpenGL these vars are part of the GL_COLOR_BUFFER
3562 * attribute group and GL_PIXEL attribute group, respectively.
3564 GLenum16 ColorDrawBuffer
[MAX_DRAW_BUFFERS
];
3565 GLenum16 ColorReadBuffer
;
3567 /* GL_ARB_sample_locations */
3568 GLfloat
*SampleLocationTable
; /**< If NULL, no table has been specified */
3569 GLboolean ProgrammableSampleLocations
;
3570 GLboolean SampleLocationPixelGrid
;
3572 /** Computed from ColorDraw/ReadBuffer above */
3573 GLuint _NumColorDrawBuffers
;
3574 gl_buffer_index _ColorDrawBufferIndexes
[MAX_DRAW_BUFFERS
];
3575 gl_buffer_index _ColorReadBufferIndex
;
3576 struct gl_renderbuffer
*_ColorDrawBuffers
[MAX_DRAW_BUFFERS
];
3577 struct gl_renderbuffer
*_ColorReadBuffer
;
3579 /* GL_MESA_framebuffer_flip_y */
3582 /** Delete this framebuffer */
3583 void (*Delete
)(struct gl_framebuffer
*fb
);
3588 * Precision info for shader datatypes. See glGetShaderPrecisionFormat().
3592 GLushort RangeMin
; /**< min value exponent */
3593 GLushort RangeMax
; /**< max value exponent */
3594 GLushort Precision
; /**< number of mantissa bits */
3599 * Limits for vertex, geometry and fragment programs/shaders.
3601 struct gl_program_constants
3603 /* logical limits */
3604 GLuint MaxInstructions
;
3605 GLuint MaxAluInstructions
;
3606 GLuint MaxTexInstructions
;
3607 GLuint MaxTexIndirections
;
3610 GLuint MaxAddressRegs
;
3611 GLuint MaxAddressOffset
; /**< [-MaxAddressOffset, MaxAddressOffset-1] */
3612 GLuint MaxParameters
;
3613 GLuint MaxLocalParams
;
3614 GLuint MaxEnvParams
;
3615 /* native/hardware limits */
3616 GLuint MaxNativeInstructions
;
3617 GLuint MaxNativeAluInstructions
;
3618 GLuint MaxNativeTexInstructions
;
3619 GLuint MaxNativeTexIndirections
;
3620 GLuint MaxNativeAttribs
;
3621 GLuint MaxNativeTemps
;
3622 GLuint MaxNativeAddressRegs
;
3623 GLuint MaxNativeParameters
;
3625 GLuint MaxUniformComponents
; /**< Usually == MaxParameters * 4 */
3628 * \name Per-stage input / output limits
3630 * Previous to OpenGL 3.2, the intrastage data limits were advertised with
3631 * a single value: GL_MAX_VARYING_COMPONENTS (GL_MAX_VARYING_VECTORS in
3632 * ES). This is stored as \c gl_constants::MaxVarying.
3634 * Starting with OpenGL 3.2, the limits are advertised with per-stage
3635 * variables. Each stage as a certain number of outputs that it can feed
3636 * to the next stage and a certain number inputs that it can consume from
3637 * the previous stage.
3639 * Vertex shader inputs do not participate this in this accounting.
3640 * These are tracked exclusively by \c gl_program_constants::MaxAttribs.
3642 * Fragment shader outputs do not participate this in this accounting.
3643 * These are tracked exclusively by \c gl_constants::MaxDrawBuffers.
3646 GLuint MaxInputComponents
;
3647 GLuint MaxOutputComponents
;
3650 /* ES 2.0 and GL_ARB_ES2_compatibility */
3651 struct gl_precision LowFloat
, MediumFloat
, HighFloat
;
3652 struct gl_precision LowInt
, MediumInt
, HighInt
;
3653 /* GL_ARB_uniform_buffer_object */
3654 GLuint MaxUniformBlocks
;
3655 uint64_t MaxCombinedUniformComponents
;
3656 GLuint MaxTextureImageUnits
;
3658 /* GL_ARB_shader_atomic_counters */
3659 GLuint MaxAtomicBuffers
;
3660 GLuint MaxAtomicCounters
;
3662 /* GL_ARB_shader_image_load_store */
3663 GLuint MaxImageUniforms
;
3665 /* GL_ARB_shader_storage_buffer_object */
3666 GLuint MaxShaderStorageBlocks
;
3670 * Constants which may be overridden by device driver during context creation
3671 * but are never changed after that.
3675 GLuint MaxTextureMbytes
; /**< Max memory per image, in MB */
3676 GLuint MaxTextureSize
; /**< Max 1D/2D texture size, in pixels*/
3677 GLuint Max3DTextureLevels
; /**< Max mipmap levels for 3D textures */
3678 GLuint MaxCubeTextureLevels
; /**< Max mipmap levels for cube textures */
3679 GLuint MaxArrayTextureLayers
; /**< Max layers in array textures */
3680 GLuint MaxTextureRectSize
; /**< Max rectangle texture size, in pixes */
3681 GLuint MaxTextureCoordUnits
;
3682 GLuint MaxCombinedTextureImageUnits
;
3683 GLuint MaxTextureUnits
; /**< = MIN(CoordUnits, FragmentProgram.ImageUnits) */
3684 GLfloat MaxTextureMaxAnisotropy
; /**< GL_EXT_texture_filter_anisotropic */
3685 GLfloat MaxTextureLodBias
; /**< GL_EXT_texture_lod_bias */
3686 GLuint MaxTextureBufferSize
; /**< GL_ARB_texture_buffer_object */
3688 GLuint TextureBufferOffsetAlignment
; /**< GL_ARB_texture_buffer_range */
3690 GLuint MaxArrayLockSize
;
3694 GLfloat MinPointSize
, MaxPointSize
; /**< aliased */
3695 GLfloat MinPointSizeAA
, MaxPointSizeAA
; /**< antialiased */
3696 GLfloat PointSizeGranularity
;
3697 GLfloat MinLineWidth
, MaxLineWidth
; /**< aliased */
3698 GLfloat MinLineWidthAA
, MaxLineWidthAA
; /**< antialiased */
3699 GLfloat LineWidthGranularity
;
3701 GLuint MaxClipPlanes
;
3703 GLfloat MaxShininess
; /**< GL_NV_light_max_exponent */
3704 GLfloat MaxSpotExponent
; /**< GL_NV_light_max_exponent */
3706 GLuint MaxViewportWidth
, MaxViewportHeight
;
3707 GLuint MaxViewports
; /**< GL_ARB_viewport_array */
3708 GLuint ViewportSubpixelBits
; /**< GL_ARB_viewport_array */
3712 } ViewportBounds
; /**< GL_ARB_viewport_array */
3713 GLuint MaxWindowRectangles
; /**< GL_EXT_window_rectangles */
3715 struct gl_program_constants Program
[MESA_SHADER_STAGES
];
3716 GLuint MaxProgramMatrices
;
3717 GLuint MaxProgramMatrixStackDepth
;
3720 GLuint SamplesPassed
;
3723 GLuint PrimitivesGenerated
;
3724 GLuint PrimitivesWritten
;
3725 GLuint VerticesSubmitted
;
3726 GLuint PrimitivesSubmitted
;
3727 GLuint VsInvocations
;
3729 GLuint TessInvocations
;
3730 GLuint GsInvocations
;
3731 GLuint GsPrimitives
;
3732 GLuint FsInvocations
;
3733 GLuint ComputeInvocations
;
3734 GLuint ClInPrimitives
;
3735 GLuint ClOutPrimitives
;
3738 GLuint MaxDrawBuffers
; /**< GL_ARB_draw_buffers */
3740 GLuint MaxColorAttachments
; /**< GL_EXT_framebuffer_object */
3741 GLuint MaxRenderbufferSize
; /**< GL_EXT_framebuffer_object */
3742 GLuint MaxSamples
; /**< GL_ARB_framebuffer_object */
3745 * GL_ARB_framebuffer_no_attachments
3747 GLuint MaxFramebufferWidth
;
3748 GLuint MaxFramebufferHeight
;
3749 GLuint MaxFramebufferLayers
;
3750 GLuint MaxFramebufferSamples
;
3752 /** Number of varying vectors between any two shader stages. */
3756 * GL_ARB_uniform_buffer_object
3758 GLuint MaxCombinedUniformBlocks
;
3759 GLuint MaxUniformBufferBindings
;
3760 GLuint MaxUniformBlockSize
;
3761 GLuint UniformBufferOffsetAlignment
;
3765 * GL_ARB_shader_storage_buffer_object
3767 GLuint MaxCombinedShaderStorageBlocks
;
3768 GLuint MaxShaderStorageBufferBindings
;
3769 GLuint MaxShaderStorageBlockSize
;
3770 GLuint ShaderStorageBufferOffsetAlignment
;
3774 * GL_ARB_explicit_uniform_location
3776 GLuint MaxUserAssignableUniformLocations
;
3778 /** geometry shader */
3779 GLuint MaxGeometryOutputVertices
;
3780 GLuint MaxGeometryTotalOutputComponents
;
3781 GLuint MaxGeometryShaderInvocations
;
3783 GLuint GLSLVersion
; /**< Desktop GLSL version supported (ex: 120 = 1.20) */
3784 GLuint GLSLVersionCompat
; /**< Desktop compat GLSL version supported */
3787 * Changes default GLSL extension behavior from "error" to "warn". It's out
3788 * of spec, but it can make some apps work that otherwise wouldn't.
3790 GLboolean ForceGLSLExtensionsWarn
;
3793 * If non-zero, forces GLSL shaders to behave as if they began
3794 * with "#version ForceGLSLVersion".
3796 GLuint ForceGLSLVersion
;
3799 * Allow GLSL #extension directives in the middle of shaders.
3801 GLboolean AllowGLSLExtensionDirectiveMidShader
;
3804 * Allow builtins as part of constant expressions. This was not allowed
3805 * until GLSL 1.20 this allows it everywhere.
3807 GLboolean AllowGLSLBuiltinConstantExpression
;
3810 * Allow some relaxation of GLSL ES shader restrictions. This encompasses
3811 * a number of relaxations to the ES shader rules.
3813 GLboolean AllowGLSLRelaxedES
;
3816 * Allow GLSL built-in variables to be redeclared verbatim
3818 GLboolean AllowGLSLBuiltinVariableRedeclaration
;
3821 * Allow GLSL interpolation qualifier mismatch across shader stages.
3823 GLboolean AllowGLSLCrossStageInterpolationMismatch
;
3826 * Allow creating a higher compat profile (version 3.1+) for apps that
3827 * request it. Be careful when adding that driconf option because some
3828 * features are unimplemented and might not work correctly.
3830 GLboolean AllowHigherCompatVersion
;
3833 * Allow layout qualifiers on function parameters.
3835 GLboolean AllowLayoutQualifiersOnFunctionParameters
;
3838 * Force computing the absolute value for sqrt() and inversesqrt() to follow
3839 * D3D9 when apps rely on this behaviour.
3841 GLboolean ForceGLSLAbsSqrt
;
3844 * Force uninitialized variables to default to zero.
3846 GLboolean GLSLZeroInit
;
3849 * Does the driver support real 32-bit integers? (Otherwise, integers are
3850 * simulated via floats.)
3852 GLboolean NativeIntegers
;
3855 * Does VertexID count from zero or from base vertex?
3858 * If desktop GLSL 1.30 or GLSL ES 3.00 are not supported, this field is
3859 * ignored and need not be set.
3861 bool VertexID_is_zero_based
;
3864 * If the driver supports real 32-bit integers, what integer value should be
3865 * used for boolean true in uniform uploads? (Usually 1 or ~0.)
3867 GLuint UniformBooleanTrue
;
3870 * Maximum amount of time, measured in nanseconds, that the server can wait.
3872 GLuint64 MaxServerWaitTimeout
;
3874 /** GL_EXT_provoking_vertex */
3875 GLboolean QuadsFollowProvokingVertexConvention
;
3877 /** GL_ARB_viewport_array */
3878 GLenum16 LayerAndVPIndexProvokingVertex
;
3880 /** OpenGL version 3.0 */
3881 GLbitfield ContextFlags
; /**< Ex: GL_CONTEXT_FLAG_FORWARD_COMPATIBLE_BIT */
3883 /** OpenGL version 3.2 */
3884 GLbitfield ProfileMask
; /**< Mask of CONTEXT_x_PROFILE_BIT */
3886 /** OpenGL version 4.4 */
3887 GLuint MaxVertexAttribStride
;
3889 /** GL_EXT_transform_feedback */
3890 GLuint MaxTransformFeedbackBuffers
;
3891 GLuint MaxTransformFeedbackSeparateComponents
;
3892 GLuint MaxTransformFeedbackInterleavedComponents
;
3893 GLuint MaxVertexStreams
;
3895 /** GL_EXT_gpu_shader4 */
3896 GLint MinProgramTexelOffset
, MaxProgramTexelOffset
;
3898 /** GL_ARB_texture_gather */
3899 GLuint MinProgramTextureGatherOffset
;
3900 GLuint MaxProgramTextureGatherOffset
;
3901 GLuint MaxProgramTextureGatherComponents
;
3903 /* GL_ARB_robustness */
3904 GLenum16 ResetStrategy
;
3906 /* GL_KHR_robustness */
3907 GLboolean RobustAccess
;
3909 /* GL_ARB_blend_func_extended */
3910 GLuint MaxDualSourceDrawBuffers
;
3913 * Whether the implementation strips out and ignores texture borders.
3915 * Many GPU hardware implementations don't support rendering with texture
3916 * borders and mipmapped textures. (Note: not static border color, but the
3917 * old 1-pixel border around each edge). Implementations then have to do
3918 * slow fallbacks to be correct, or just ignore the border and be fast but
3919 * wrong. Setting the flag strips the border off of TexImage calls,
3920 * providing "fast but wrong" at significantly reduced driver complexity.
3922 * Texture borders are deprecated in GL 3.0.
3924 GLboolean StripTextureBorder
;
3927 * For drivers which can do a better job at eliminating unused uniforms
3928 * than the GLSL compiler.
3930 * XXX Remove these as soon as a better solution is available.
3932 GLboolean GLSLSkipStrictMaxUniformLimitCheck
;
3935 * Whether gl_FragCoord, gl_PointCoord and gl_FrontFacing
3936 * are system values.
3938 bool GLSLFragCoordIsSysVal
;
3939 bool GLSLPointCoordIsSysVal
;
3940 bool GLSLFrontFacingIsSysVal
;
3943 * Run the minimum amount of GLSL optimizations to be able to link
3944 * shaders optimally (eliminate dead varyings and uniforms) and just do
3945 * all the necessary lowering.
3947 bool GLSLOptimizeConservatively
;
3950 * Whether to call lower_const_arrays_to_uniforms() during linking.
3952 bool GLSLLowerConstArrays
;
3955 * True if gl_TessLevelInner/Outer[] in the TES should be inputs
3956 * (otherwise, they're system values).
3958 bool GLSLTessLevelsAsInputs
;
3961 * Always use the GetTransformFeedbackVertexCount() driver hook, rather
3962 * than passing the transform feedback object to the drawing function.
3964 GLboolean AlwaysUseGetTransformFeedbackVertexCount
;
3966 /** GL_ARB_map_buffer_alignment */
3967 GLuint MinMapBufferAlignment
;
3970 * Disable varying packing. This is out of spec, but potentially useful
3971 * for older platforms that supports a limited number of texture
3972 * indirections--on these platforms, unpacking the varyings in the fragment
3973 * shader increases the number of texture indirections by 1, which might
3974 * make some shaders not executable at all.
3976 * Drivers that support transform feedback must set this value to GL_FALSE.
3978 GLboolean DisableVaryingPacking
;
3981 * Disable varying packing if used for transform feedback. This is needed
3982 * for some drivers (e.g. Panfrost) where transform feedback requires
3983 * unpacked varyings.
3985 * This variable is mutually exlusive with DisableVaryingPacking.
3987 GLboolean DisableTransformFeedbackPacking
;
3990 * UBOs and SSBOs can be packed tightly by the OpenGL implementation when
3991 * layout is set as shared (the default) or packed. However most Mesa drivers
3992 * just use STD140 for these layouts. This flag allows drivers to use STD430
3993 * for packed and shared layouts which allows arrays to be packed more
3996 bool UseSTD430AsDefaultPacking
;
3999 * Should meaningful names be generated for compiler temporary variables?
4001 * Generally, it is not useful to have the compiler generate "meaningful"
4002 * names for temporary variables that it creates. This can, however, be a
4003 * useful debugging aid. In Mesa debug builds or release builds when
4004 * MESA_GLSL is set at run-time, meaningful names will be generated.
4005 * Drivers can also force names to be generated by setting this field.
4006 * For example, the i965 driver may set it when INTEL_DEBUG=vs (to dump
4007 * vertex shader assembly) is set at run-time.
4009 bool GenerateTemporaryNames
;
4012 * Maximum value supported for an index in DrawElements and friends.
4014 * This must be at least (1ull<<24)-1. The default value is
4017 * \since ES 3.0 or GL_ARB_ES3_compatibility
4018 * \sa _mesa_init_constants
4020 GLuint64 MaxElementIndex
;
4023 * Disable interpretation of line continuations (lines ending with a
4024 * backslash character ('\') in GLSL source.
4026 GLboolean DisableGLSLLineContinuations
;
4028 /** GL_ARB_texture_multisample */
4029 GLint MaxColorTextureSamples
;
4030 GLint MaxDepthTextureSamples
;
4031 GLint MaxIntegerSamples
;
4033 /** GL_AMD_framebuffer_multisample_advanced */
4034 GLint MaxColorFramebufferSamples
;
4035 GLint MaxColorFramebufferStorageSamples
;
4036 GLint MaxDepthStencilFramebufferSamples
;
4038 /* An array of supported MSAA modes allowing different sample
4039 * counts per attachment type.
4042 GLint NumColorSamples
;
4043 GLint NumColorStorageSamples
;
4044 GLint NumDepthStencilSamples
;
4045 } SupportedMultisampleModes
[40];
4046 GLint NumSupportedMultisampleModes
;
4049 * GL_EXT_texture_multisample_blit_scaled implementation assumes that
4050 * samples are laid out in a rectangular grid roughly corresponding to
4051 * sample locations within a pixel. Below SampleMap{2,4,8}x variables
4052 * are used to map indices of rectangular grid to sample numbers within
4053 * a pixel. This mapping of indices to sample numbers must be initialized
4054 * by the driver for the target hardware. For example, if we have the 8X
4055 * MSAA sample number layout (sample positions) for XYZ hardware:
4057 * sample indices layout sample number layout
4058 * --------- ---------
4059 * | 0 | 1 | | a | b |
4060 * --------- ---------
4061 * | 2 | 3 | | c | d |
4062 * --------- ---------
4063 * | 4 | 5 | | e | f |
4064 * --------- ---------
4065 * | 6 | 7 | | g | h |
4066 * --------- ---------
4068 * Where a,b,c,d,e,f,g,h are integers between [0-7].
4070 * Then, initialize the SampleMap8x variable for XYZ hardware as shown
4072 * SampleMap8x = {a, b, c, d, e, f, g, h};
4074 * Follow the logic for sample counts 2-8.
4076 * For 16x the sample indices layout as a 4x4 grid as follows:
4088 uint8_t SampleMap2x
[2];
4089 uint8_t SampleMap4x
[4];
4090 uint8_t SampleMap8x
[8];
4091 uint8_t SampleMap16x
[16];
4093 /** GL_ARB_shader_atomic_counters */
4094 GLuint MaxAtomicBufferBindings
;
4095 GLuint MaxAtomicBufferSize
;
4096 GLuint MaxCombinedAtomicBuffers
;
4097 GLuint MaxCombinedAtomicCounters
;
4099 /** GL_ARB_vertex_attrib_binding */
4100 GLint MaxVertexAttribRelativeOffset
;
4101 GLint MaxVertexAttribBindings
;
4103 /* GL_ARB_shader_image_load_store */
4104 GLuint MaxImageUnits
;
4105 GLuint MaxCombinedShaderOutputResources
;
4106 GLuint MaxImageSamples
;
4107 GLuint MaxCombinedImageUniforms
;
4109 /** GL_ARB_compute_shader */
4110 GLuint MaxComputeWorkGroupCount
[3]; /* Array of x, y, z dimensions */
4111 GLuint MaxComputeWorkGroupSize
[3]; /* Array of x, y, z dimensions */
4112 GLuint MaxComputeWorkGroupInvocations
;
4113 GLuint MaxComputeSharedMemorySize
;
4115 /** GL_ARB_compute_variable_group_size */
4116 GLuint MaxComputeVariableGroupSize
[3]; /* Array of x, y, z dimensions */
4117 GLuint MaxComputeVariableGroupInvocations
;
4119 /** GL_ARB_gpu_shader5 */
4120 GLfloat MinFragmentInterpolationOffset
;
4121 GLfloat MaxFragmentInterpolationOffset
;
4123 GLboolean FakeSWMSAA
;
4125 /** GL_KHR_context_flush_control */
4126 GLenum16 ContextReleaseBehavior
;
4128 struct gl_shader_compiler_options ShaderCompilerOptions
[MESA_SHADER_STAGES
];
4130 /** GL_ARB_tessellation_shader */
4131 GLuint MaxPatchVertices
;
4132 GLuint MaxTessGenLevel
;
4133 GLuint MaxTessPatchComponents
;
4134 GLuint MaxTessControlTotalOutputComponents
;
4135 bool LowerTessLevel
; /**< Lower gl_TessLevel* from float[n] to vecn? */
4136 bool PrimitiveRestartForPatches
;
4137 bool LowerCsDerivedVariables
; /**< Lower gl_GlobalInvocationID and
4138 * gl_LocalInvocationIndex based on
4139 * other builtin variables. */
4141 /** GL_OES_primitive_bounding_box */
4142 bool NoPrimitiveBoundingBoxOutput
;
4144 /** GL_ARB_sparse_buffer */
4145 GLuint SparseBufferPageSize
;
4147 /** Used as an input for sha1 generation in the on-disk shader cache */
4148 unsigned char *dri_config_options_sha1
;
4150 /** When drivers are OK with mapped buffers during draw and other calls. */
4151 bool AllowMappedBuffersDuringExecution
;
4153 /** GL_ARB_get_program_binary */
4154 GLuint NumProgramBinaryFormats
;
4156 /** GL_NV_conservative_raster */
4157 GLuint MaxSubpixelPrecisionBiasBits
;
4159 /** GL_NV_conservative_raster_dilate */
4160 GLfloat ConservativeRasterDilateRange
[2];
4161 GLfloat ConservativeRasterDilateGranularity
;
4163 /** Is the drivers uniform storage packed or padded to 16 bytes. */
4164 bool PackedDriverUniformStorage
;
4166 /** Does the driver make use of the NIR based GLSL linker */
4167 bool UseNIRGLSLLinker
;
4169 /** Wether or not glBitmap uses red textures rather than alpha */
4172 /** Whether the vertex buffer offset is a signed 32-bit integer. */
4173 bool VertexBufferOffsetIsInt32
;
4175 /** GL_ARB_gl_spirv */
4176 struct spirv_supported_capabilities SpirVCapabilities
;
4178 /** GL_ARB_spirv_extensions */
4179 struct spirv_supported_extensions
*SpirVExtensions
;
4181 char *VendorOverride
;
4186 * Enable flag for each OpenGL extension. Different device drivers will
4187 * enable different extensions at runtime.
4189 struct gl_extensions
4191 GLboolean dummy
; /* don't remove this! */
4192 GLboolean dummy_true
; /* Set true by _mesa_init_extensions(). */
4193 GLboolean dummy_false
; /* Set false by _mesa_init_extensions(). */
4194 GLboolean ANGLE_texture_compression_dxt
;
4195 GLboolean ARB_ES2_compatibility
;
4196 GLboolean ARB_ES3_compatibility
;
4197 GLboolean ARB_ES3_1_compatibility
;
4198 GLboolean ARB_ES3_2_compatibility
;
4199 GLboolean ARB_arrays_of_arrays
;
4200 GLboolean ARB_base_instance
;
4201 GLboolean ARB_bindless_texture
;
4202 GLboolean ARB_blend_func_extended
;
4203 GLboolean ARB_buffer_storage
;
4204 GLboolean ARB_clear_texture
;
4205 GLboolean ARB_clip_control
;
4206 GLboolean ARB_color_buffer_float
;
4207 GLboolean ARB_compatibility
;
4208 GLboolean ARB_compute_shader
;
4209 GLboolean ARB_compute_variable_group_size
;
4210 GLboolean ARB_conditional_render_inverted
;
4211 GLboolean ARB_conservative_depth
;
4212 GLboolean ARB_copy_image
;
4213 GLboolean ARB_cull_distance
;
4214 GLboolean ARB_depth_buffer_float
;
4215 GLboolean ARB_depth_clamp
;
4216 GLboolean ARB_depth_texture
;
4217 GLboolean ARB_derivative_control
;
4218 GLboolean ARB_draw_buffers_blend
;
4219 GLboolean ARB_draw_elements_base_vertex
;
4220 GLboolean ARB_draw_indirect
;
4221 GLboolean ARB_draw_instanced
;
4222 GLboolean ARB_fragment_coord_conventions
;
4223 GLboolean ARB_fragment_layer_viewport
;
4224 GLboolean ARB_fragment_program
;
4225 GLboolean ARB_fragment_program_shadow
;
4226 GLboolean ARB_fragment_shader
;
4227 GLboolean ARB_framebuffer_no_attachments
;
4228 GLboolean ARB_framebuffer_object
;
4229 GLboolean ARB_fragment_shader_interlock
;
4230 GLboolean ARB_enhanced_layouts
;
4231 GLboolean ARB_explicit_attrib_location
;
4232 GLboolean ARB_explicit_uniform_location
;
4233 GLboolean ARB_gl_spirv
;
4234 GLboolean ARB_gpu_shader5
;
4235 GLboolean ARB_gpu_shader_fp64
;
4236 GLboolean ARB_gpu_shader_int64
;
4237 GLboolean ARB_half_float_vertex
;
4238 GLboolean ARB_indirect_parameters
;
4239 GLboolean ARB_instanced_arrays
;
4240 GLboolean ARB_internalformat_query
;
4241 GLboolean ARB_internalformat_query2
;
4242 GLboolean ARB_map_buffer_range
;
4243 GLboolean ARB_occlusion_query
;
4244 GLboolean ARB_occlusion_query2
;
4245 GLboolean ARB_pipeline_statistics_query
;
4246 GLboolean ARB_point_sprite
;
4247 GLboolean ARB_polygon_offset_clamp
;
4248 GLboolean ARB_post_depth_coverage
;
4249 GLboolean ARB_query_buffer_object
;
4250 GLboolean ARB_robust_buffer_access_behavior
;
4251 GLboolean ARB_sample_locations
;
4252 GLboolean ARB_sample_shading
;
4253 GLboolean ARB_seamless_cube_map
;
4254 GLboolean ARB_shader_atomic_counter_ops
;
4255 GLboolean ARB_shader_atomic_counters
;
4256 GLboolean ARB_shader_ballot
;
4257 GLboolean ARB_shader_bit_encoding
;
4258 GLboolean ARB_shader_clock
;
4259 GLboolean ARB_shader_draw_parameters
;
4260 GLboolean ARB_shader_group_vote
;
4261 GLboolean ARB_shader_image_load_store
;
4262 GLboolean ARB_shader_image_size
;
4263 GLboolean ARB_shader_precision
;
4264 GLboolean ARB_shader_stencil_export
;
4265 GLboolean ARB_shader_storage_buffer_object
;
4266 GLboolean ARB_shader_texture_image_samples
;
4267 GLboolean ARB_shader_texture_lod
;
4268 GLboolean ARB_shader_viewport_layer_array
;
4269 GLboolean ARB_shading_language_packing
;
4270 GLboolean ARB_shading_language_420pack
;
4271 GLboolean ARB_shadow
;
4272 GLboolean ARB_sparse_buffer
;
4273 GLboolean ARB_stencil_texturing
;
4274 GLboolean ARB_spirv_extensions
;
4276 GLboolean ARB_tessellation_shader
;
4277 GLboolean ARB_texture_border_clamp
;
4278 GLboolean ARB_texture_buffer_object
;
4279 GLboolean ARB_texture_buffer_object_rgb32
;
4280 GLboolean ARB_texture_buffer_range
;
4281 GLboolean ARB_texture_compression_bptc
;
4282 GLboolean ARB_texture_compression_rgtc
;
4283 GLboolean ARB_texture_cube_map
;
4284 GLboolean ARB_texture_cube_map_array
;
4285 GLboolean ARB_texture_env_combine
;
4286 GLboolean ARB_texture_env_crossbar
;
4287 GLboolean ARB_texture_env_dot3
;
4288 GLboolean ARB_texture_filter_anisotropic
;
4289 GLboolean ARB_texture_float
;
4290 GLboolean ARB_texture_gather
;
4291 GLboolean ARB_texture_mirror_clamp_to_edge
;
4292 GLboolean ARB_texture_multisample
;
4293 GLboolean ARB_texture_non_power_of_two
;
4294 GLboolean ARB_texture_stencil8
;
4295 GLboolean ARB_texture_query_levels
;
4296 GLboolean ARB_texture_query_lod
;
4297 GLboolean ARB_texture_rg
;
4298 GLboolean ARB_texture_rgb10_a2ui
;
4299 GLboolean ARB_texture_view
;
4300 GLboolean ARB_timer_query
;
4301 GLboolean ARB_transform_feedback2
;
4302 GLboolean ARB_transform_feedback3
;
4303 GLboolean ARB_transform_feedback_instanced
;
4304 GLboolean ARB_transform_feedback_overflow_query
;
4305 GLboolean ARB_uniform_buffer_object
;
4306 GLboolean ARB_vertex_attrib_64bit
;
4307 GLboolean ARB_vertex_program
;
4308 GLboolean ARB_vertex_shader
;
4309 GLboolean ARB_vertex_type_10f_11f_11f_rev
;
4310 GLboolean ARB_vertex_type_2_10_10_10_rev
;
4311 GLboolean ARB_viewport_array
;
4312 GLboolean EXT_blend_color
;
4313 GLboolean EXT_blend_equation_separate
;
4314 GLboolean EXT_blend_func_separate
;
4315 GLboolean EXT_blend_minmax
;
4316 GLboolean EXT_demote_to_helper_invocation
;
4317 GLboolean EXT_depth_bounds_test
;
4318 GLboolean EXT_disjoint_timer_query
;
4319 GLboolean EXT_draw_buffers2
;
4320 GLboolean EXT_EGL_image_storage
;
4321 GLboolean EXT_float_blend
;
4322 GLboolean EXT_framebuffer_multisample
;
4323 GLboolean EXT_framebuffer_multisample_blit_scaled
;
4324 GLboolean EXT_framebuffer_sRGB
;
4325 GLboolean EXT_gpu_program_parameters
;
4326 GLboolean EXT_gpu_shader4
;
4327 GLboolean EXT_memory_object
;
4328 GLboolean EXT_memory_object_fd
;
4329 GLboolean EXT_multisampled_render_to_texture
;
4330 GLboolean EXT_packed_float
;
4331 GLboolean EXT_pixel_buffer_object
;
4332 GLboolean EXT_point_parameters
;
4333 GLboolean EXT_provoking_vertex
;
4334 GLboolean EXT_render_snorm
;
4335 GLboolean EXT_semaphore
;
4336 GLboolean EXT_semaphore_fd
;
4337 GLboolean EXT_shader_image_load_formatted
;
4338 GLboolean EXT_shader_image_load_store
;
4339 GLboolean EXT_shader_integer_mix
;
4340 GLboolean EXT_shader_samples_identical
;
4342 GLboolean EXT_stencil_two_side
;
4343 GLboolean EXT_texture_array
;
4344 GLboolean EXT_texture_buffer_object
;
4345 GLboolean EXT_texture_compression_latc
;
4346 GLboolean EXT_texture_compression_s3tc
;
4347 GLboolean EXT_texture_compression_s3tc_srgb
;
4348 GLboolean EXT_texture_env_dot3
;
4349 GLboolean EXT_texture_filter_anisotropic
;
4350 GLboolean EXT_texture_integer
;
4351 GLboolean EXT_texture_mirror_clamp
;
4352 GLboolean EXT_texture_norm16
;
4353 GLboolean EXT_texture_shadow_lod
;
4354 GLboolean EXT_texture_shared_exponent
;
4355 GLboolean EXT_texture_snorm
;
4356 GLboolean EXT_texture_sRGB
;
4357 GLboolean EXT_texture_sRGB_R8
;
4358 GLboolean EXT_texture_sRGB_decode
;
4359 GLboolean EXT_texture_swizzle
;
4360 GLboolean EXT_texture_type_2_10_10_10_REV
;
4361 GLboolean EXT_transform_feedback
;
4362 GLboolean EXT_timer_query
;
4363 GLboolean EXT_vertex_array_bgra
;
4364 GLboolean EXT_window_rectangles
;
4365 GLboolean OES_copy_image
;
4366 GLboolean OES_primitive_bounding_box
;
4367 GLboolean OES_sample_variables
;
4368 GLboolean OES_standard_derivatives
;
4369 GLboolean OES_texture_buffer
;
4370 GLboolean OES_texture_cube_map_array
;
4371 GLboolean OES_texture_view
;
4372 GLboolean OES_viewport_array
;
4373 /* vendor extensions */
4374 GLboolean AMD_compressed_ATC_texture
;
4375 GLboolean AMD_framebuffer_multisample_advanced
;
4376 GLboolean AMD_depth_clamp_separate
;
4377 GLboolean AMD_performance_monitor
;
4378 GLboolean AMD_pinned_memory
;
4379 GLboolean AMD_seamless_cubemap_per_texture
;
4380 GLboolean AMD_vertex_shader_layer
;
4381 GLboolean AMD_vertex_shader_viewport_index
;
4382 GLboolean ANDROID_extension_pack_es31a
;
4383 GLboolean APPLE_object_purgeable
;
4384 GLboolean ATI_meminfo
;
4385 GLboolean ATI_texture_compression_3dc
;
4386 GLboolean ATI_texture_mirror_once
;
4387 GLboolean ATI_texture_env_combine3
;
4388 GLboolean ATI_fragment_shader
;
4389 GLboolean GREMEDY_string_marker
;
4390 GLboolean INTEL_blackhole_render
;
4391 GLboolean INTEL_conservative_rasterization
;
4392 GLboolean INTEL_performance_query
;
4393 GLboolean INTEL_shader_atomic_float_minmax
;
4394 GLboolean INTEL_shader_integer_functions2
;
4395 GLboolean KHR_blend_equation_advanced
;
4396 GLboolean KHR_blend_equation_advanced_coherent
;
4397 GLboolean KHR_robustness
;
4398 GLboolean KHR_texture_compression_astc_hdr
;
4399 GLboolean KHR_texture_compression_astc_ldr
;
4400 GLboolean KHR_texture_compression_astc_sliced_3d
;
4401 GLboolean MESA_framebuffer_flip_y
;
4402 GLboolean MESA_tile_raster_order
;
4403 GLboolean MESA_pack_invert
;
4404 GLboolean EXT_shader_framebuffer_fetch
;
4405 GLboolean EXT_shader_framebuffer_fetch_non_coherent
;
4406 GLboolean MESA_shader_integer_functions
;
4407 GLboolean MESA_ycbcr_texture
;
4408 GLboolean NV_compute_shader_derivatives
;
4409 GLboolean NV_conditional_render
;
4410 GLboolean NV_copy_image
;
4411 GLboolean NV_fill_rectangle
;
4412 GLboolean NV_fog_distance
;
4413 GLboolean NV_point_sprite
;
4414 GLboolean NV_primitive_restart
;
4415 GLboolean NV_shader_atomic_float
;
4416 GLboolean NV_texture_barrier
;
4417 GLboolean NV_texture_env_combine4
;
4418 GLboolean NV_texture_rectangle
;
4419 GLboolean NV_vdpau_interop
;
4420 GLboolean NV_conservative_raster
;
4421 GLboolean NV_conservative_raster_dilate
;
4422 GLboolean NV_conservative_raster_pre_snap_triangles
;
4423 GLboolean NV_conservative_raster_pre_snap
;
4424 GLboolean NVX_gpu_memory_info
;
4425 GLboolean TDFX_texture_compression_FXT1
;
4426 GLboolean OES_EGL_image
;
4427 GLboolean OES_draw_texture
;
4428 GLboolean OES_depth_texture_cube_map
;
4429 GLboolean OES_EGL_image_external
;
4430 GLboolean OES_texture_float
;
4431 GLboolean OES_texture_float_linear
;
4432 GLboolean OES_texture_half_float
;
4433 GLboolean OES_texture_half_float_linear
;
4434 GLboolean OES_compressed_ETC1_RGB8_texture
;
4435 GLboolean OES_geometry_shader
;
4436 GLboolean OES_texture_compression_astc
;
4437 GLboolean extension_sentinel
;
4438 /** The extension string */
4439 const GLubyte
*String
;
4440 /** Number of supported extensions */
4443 * The context version which extension helper functions compare against.
4444 * By default, the value is equal to ctx->Version. This changes to ~0
4445 * while meta is in progress.
4449 * Force-enabled, yet unrecognized, extensions.
4450 * See _mesa_one_time_init_extension_overrides()
4452 #define MAX_UNRECOGNIZED_EXTENSIONS 16
4453 const char *unrecognized_extensions
[MAX_UNRECOGNIZED_EXTENSIONS
];
4458 * A stack of matrices (projection, modelview, color, texture, etc).
4460 struct gl_matrix_stack
4462 GLmatrix
*Top
; /**< points into Stack */
4463 GLmatrix
*Stack
; /**< array [MaxDepth] of GLmatrix */
4464 unsigned StackSize
; /**< Number of elements in Stack */
4465 GLuint Depth
; /**< 0 <= Depth < MaxDepth */
4466 GLuint MaxDepth
; /**< size of Stack[] array */
4467 GLuint DirtyFlag
; /**< _NEW_MODELVIEW or _NEW_PROJECTION, for example */
4472 * \name Bits for image transfer operations
4473 * \sa __struct gl_contextRec::ImageTransferState.
4476 #define IMAGE_SCALE_BIAS_BIT 0x1
4477 #define IMAGE_SHIFT_OFFSET_BIT 0x2
4478 #define IMAGE_MAP_COLOR_BIT 0x4
4479 #define IMAGE_CLAMP_BIT 0x800
4482 /** Pixel Transfer ops */
4483 #define IMAGE_BITS (IMAGE_SCALE_BIAS_BIT | \
4484 IMAGE_SHIFT_OFFSET_BIT | \
4485 IMAGE_MAP_COLOR_BIT)
4489 * \name Bits to indicate what state has changed.
4492 #define _NEW_MODELVIEW (1u << 0) /**< gl_context::ModelView */
4493 #define _NEW_PROJECTION (1u << 1) /**< gl_context::Projection */
4494 #define _NEW_TEXTURE_MATRIX (1u << 2) /**< gl_context::TextureMatrix */
4495 #define _NEW_COLOR (1u << 3) /**< gl_context::Color */
4496 #define _NEW_DEPTH (1u << 4) /**< gl_context::Depth */
4497 #define _NEW_EVAL (1u << 5) /**< gl_context::Eval, EvalMap */
4498 #define _NEW_FOG (1u << 6) /**< gl_context::Fog */
4499 #define _NEW_HINT (1u << 7) /**< gl_context::Hint */
4500 #define _NEW_LIGHT (1u << 8) /**< gl_context::Light */
4501 #define _NEW_LINE (1u << 9) /**< gl_context::Line */
4502 #define _NEW_PIXEL (1u << 10) /**< gl_context::Pixel */
4503 #define _NEW_POINT (1u << 11) /**< gl_context::Point */
4504 #define _NEW_POLYGON (1u << 12) /**< gl_context::Polygon */
4505 #define _NEW_POLYGONSTIPPLE (1u << 13) /**< gl_context::PolygonStipple */
4506 #define _NEW_SCISSOR (1u << 14) /**< gl_context::Scissor */
4507 #define _NEW_STENCIL (1u << 15) /**< gl_context::Stencil */
4508 #define _NEW_TEXTURE_OBJECT (1u << 16) /**< gl_context::Texture (bindings only) */
4509 #define _NEW_TRANSFORM (1u << 17) /**< gl_context::Transform */
4510 #define _NEW_VIEWPORT (1u << 18) /**< gl_context::Viewport */
4511 #define _NEW_TEXTURE_STATE (1u << 19) /**< gl_context::Texture (states only) */
4513 #define _NEW_RENDERMODE (1u << 21) /**< gl_context::RenderMode, etc */
4514 #define _NEW_BUFFERS (1u << 22) /**< gl_context::Visual, DrawBuffer, */
4515 #define _NEW_CURRENT_ATTRIB (1u << 23) /**< gl_context::Current */
4516 #define _NEW_MULTISAMPLE (1u << 24) /**< gl_context::Multisample */
4517 #define _NEW_TRACK_MATRIX (1u << 25) /**< gl_context::VertexProgram */
4518 #define _NEW_PROGRAM (1u << 26) /**< New program/shader state */
4519 #define _NEW_PROGRAM_CONSTANTS (1u << 27)
4521 #define _NEW_FRAG_CLAMP (1u << 29)
4522 /* gap, re-use for core Mesa state only; use ctx->DriverFlags otherwise */
4523 #define _NEW_VARYING_VP_INPUTS (1u << 31) /**< gl_context::varying_vp_inputs */
4529 * Composite state flags
4532 #define _NEW_TEXTURE (_NEW_TEXTURE_OBJECT | _NEW_TEXTURE_STATE)
4534 #define _MESA_NEW_NEED_EYE_COORDS (_NEW_LIGHT | \
4535 _NEW_TEXTURE_STATE | \
4540 #define _MESA_NEW_SEPARATE_SPECULAR (_NEW_LIGHT | \
4550 /* This has to be included here. */
4554 /** Opaque declaration of display list payload data type */
4555 union gl_dlist_node
;
4559 * Per-display list information.
4561 struct gl_display_list
4564 GLbitfield Flags
; /**< DLIST_x flags */
4565 GLchar
*Label
; /**< GL_KHR_debug */
4566 /** The dlist commands are in a linked list of nodes */
4567 union gl_dlist_node
*Head
;
4572 * State used during display list compilation and execution.
4574 struct gl_dlist_state
4576 struct gl_display_list
*CurrentList
; /**< List currently being compiled */
4577 union gl_dlist_node
*CurrentBlock
; /**< Pointer to current block of nodes */
4578 GLuint CurrentPos
; /**< Index into current block of nodes */
4579 GLuint CallDepth
; /**< Current recursion calling depth */
4581 GLvertexformat ListVtxfmt
;
4583 GLubyte ActiveAttribSize
[VERT_ATTRIB_MAX
];
4584 GLfloat CurrentAttrib
[VERT_ATTRIB_MAX
][8];
4586 GLubyte ActiveMaterialSize
[MAT_ATTRIB_MAX
];
4587 GLfloat CurrentMaterial
[MAT_ATTRIB_MAX
][4];
4590 /* State known to have been set by the currently-compiling display
4591 * list. Used to eliminate some redundant state changes.
4593 GLenum16 ShadeModel
;
4598 * Driver-specific state flags.
4600 * These are or'd with gl_context::NewDriverState to notify a driver about
4601 * a state change. The driver sets the flags at context creation and
4602 * the meaning of the bits set is opaque to core Mesa.
4604 struct gl_driver_flags
4606 /** gl_context::Array::_DrawArrays (vertex array state) */
4609 /** gl_context::TransformFeedback::CurrentObject */
4610 uint64_t NewTransformFeedback
;
4612 /** gl_context::TransformFeedback::CurrentObject::shader_program */
4613 uint64_t NewTransformFeedbackProg
;
4615 /** gl_context::RasterDiscard */
4616 uint64_t NewRasterizerDiscard
;
4618 /** gl_context::TileRasterOrder* */
4619 uint64_t NewTileRasterOrder
;
4622 * gl_context::UniformBufferBindings
4623 * gl_shader_program::UniformBlocks
4625 uint64_t NewUniformBuffer
;
4628 * gl_context::ShaderStorageBufferBindings
4629 * gl_shader_program::ShaderStorageBlocks
4631 uint64_t NewShaderStorageBuffer
;
4633 uint64_t NewTextureBuffer
;
4636 * gl_context::AtomicBufferBindings
4638 uint64_t NewAtomicBuffer
;
4641 * gl_context::ImageUnits
4643 uint64_t NewImageUnits
;
4646 * gl_context::TessCtrlProgram::patch_default_*
4648 uint64_t NewDefaultTessLevels
;
4651 * gl_context::IntelConservativeRasterization
4653 uint64_t NewIntelConservativeRasterization
;
4656 * gl_context::NvConservativeRasterization
4658 uint64_t NewNvConservativeRasterization
;
4661 * gl_context::ConservativeRasterMode/ConservativeRasterDilate
4662 * gl_context::SubpixelPrecisionBias
4664 uint64_t NewNvConservativeRasterizationParams
;
4667 * gl_context::Scissor::WindowRects
4669 uint64_t NewWindowRectangles
;
4671 /** gl_context::Color::sRGBEnabled */
4672 uint64_t NewFramebufferSRGB
;
4674 /** gl_context::Scissor::EnableFlags */
4675 uint64_t NewScissorTest
;
4677 /** gl_context::Scissor::ScissorArray */
4678 uint64_t NewScissorRect
;
4680 /** gl_context::Color::Alpha* */
4681 uint64_t NewAlphaTest
;
4683 /** gl_context::Color::Blend/Dither */
4686 /** gl_context::Color::BlendColor */
4687 uint64_t NewBlendColor
;
4689 /** gl_context::Color::Color/Index */
4690 uint64_t NewColorMask
;
4692 /** gl_context::Depth */
4695 /** gl_context::Color::LogicOp/ColorLogicOp/IndexLogicOp */
4696 uint64_t NewLogicOp
;
4698 /** gl_context::Multisample::Enabled */
4699 uint64_t NewMultisampleEnable
;
4701 /** gl_context::Multisample::SampleAlphaTo* */
4702 uint64_t NewSampleAlphaToXEnable
;
4704 /** gl_context::Multisample::SampleCoverage/SampleMaskValue */
4705 uint64_t NewSampleMask
;
4707 /** gl_context::Multisample::(Min)SampleShading */
4708 uint64_t NewSampleShading
;
4710 /** gl_context::Stencil */
4711 uint64_t NewStencil
;
4713 /** gl_context::Transform::ClipOrigin/ClipDepthMode */
4714 uint64_t NewClipControl
;
4716 /** gl_context::Transform::EyeUserPlane */
4717 uint64_t NewClipPlane
;
4719 /** gl_context::Transform::ClipPlanesEnabled */
4720 uint64_t NewClipPlaneEnable
;
4722 /** gl_context::Transform::DepthClamp */
4723 uint64_t NewDepthClamp
;
4725 /** gl_context::Line */
4726 uint64_t NewLineState
;
4728 /** gl_context::Polygon */
4729 uint64_t NewPolygonState
;
4731 /** gl_context::PolygonStipple */
4732 uint64_t NewPolygonStipple
;
4734 /** gl_context::ViewportArray */
4735 uint64_t NewViewport
;
4737 /** Shader constants (uniforms, program parameters, state constants) */
4738 uint64_t NewShaderConstants
[MESA_SHADER_STAGES
];
4740 /** Programmable sample location state for gl_context::DrawBuffer */
4741 uint64_t NewSampleLocations
;
4744 struct gl_buffer_binding
4746 struct gl_buffer_object
*BufferObject
;
4747 /** Start of uniform block data in the buffer */
4749 /** Size of data allowed to be referenced from the buffer (in bytes) */
4752 * glBindBufferBase() indicates that the Size should be ignored and only
4753 * limited by the current size of the BufferObject.
4755 GLboolean AutomaticSize
;
4759 * ARB_shader_image_load_store image unit.
4761 struct gl_image_unit
4764 * Texture object bound to this unit.
4766 struct gl_texture_object
*TexObj
;
4769 * Level of the texture object bound to this unit.
4774 * \c GL_TRUE if the whole level is bound as an array of layers, \c
4775 * GL_FALSE if only some specific layer of the texture is bound.
4781 * Layer of the texture object bound to this unit as specified by the
4787 * Layer of the texture object bound to this unit, or zero if
4793 * Access allowed to this texture image. Either \c GL_READ_ONLY,
4794 * \c GL_WRITE_ONLY or \c GL_READ_WRITE.
4799 * GL internal format that determines the interpretation of the
4800 * image memory when shader image operations are performed through
4806 * Mesa format corresponding to \c Format.
4808 mesa_format _ActualFormat
:16;
4812 * Shader subroutines storage
4814 struct gl_subroutine_index_binding
4820 struct gl_texture_handle_object
4822 struct gl_texture_object
*texObj
;
4823 struct gl_sampler_object
*sampObj
;
4827 struct gl_image_handle_object
4829 struct gl_image_unit imgObj
;
4833 struct gl_memory_object
4835 GLuint Name
; /**< hash table ID/name */
4836 GLboolean Immutable
; /**< denotes mutability state of parameters */
4837 GLboolean Dedicated
; /**< import memory from a dedicated allocation */
4840 struct gl_semaphore_object
4842 GLuint Name
; /**< hash table ID/name */
4846 * Mesa rendering context.
4848 * This is the central context data structure for Mesa. Almost all
4849 * OpenGL state is contained in this structure.
4850 * Think of this as a base class from which device drivers will derive
4855 /** State possibly shared with other contexts in the address space */
4856 struct gl_shared_state
*Shared
;
4858 /** \name API function pointer tables */
4863 * The current dispatch table for non-displaylist-saving execution, either
4864 * BeginEnd or OutsideBeginEnd
4866 struct _glapi_table
*Exec
;
4868 * The normal dispatch table for non-displaylist-saving, non-begin/end
4870 struct _glapi_table
*OutsideBeginEnd
;
4871 /** The dispatch table used between glNewList() and glEndList() */
4872 struct _glapi_table
*Save
;
4874 * The dispatch table used between glBegin() and glEnd() (outside of a
4875 * display list). Only valid functions between those two are set, which is
4876 * mostly just the set in a GLvertexformat struct.
4878 struct _glapi_table
*BeginEnd
;
4880 * Dispatch table for when a graphics reset has happened.
4882 struct _glapi_table
*ContextLost
;
4884 * Dispatch table used to marshal API calls from the client program to a
4885 * separate server thread. NULL if API calls are not being marshalled to
4888 struct _glapi_table
*MarshalExec
;
4890 * Dispatch table currently in use for fielding API calls from the client
4891 * program. If API calls are being marshalled to another thread, this ==
4892 * MarshalExec. Otherwise it == CurrentServerDispatch.
4894 struct _glapi_table
*CurrentClientDispatch
;
4897 * Dispatch table currently in use for performing API calls. == Save or
4900 struct _glapi_table
*CurrentServerDispatch
;
4904 struct glthread_state
*GLThread
;
4906 struct gl_config Visual
;
4907 struct gl_framebuffer
*DrawBuffer
; /**< buffer for writing */
4908 struct gl_framebuffer
*ReadBuffer
; /**< buffer for reading */
4909 struct gl_framebuffer
*WinSysDrawBuffer
; /**< set with MakeCurrent */
4910 struct gl_framebuffer
*WinSysReadBuffer
; /**< set with MakeCurrent */
4913 * Device driver function pointer table
4915 struct dd_function_table Driver
;
4917 /** Core/Driver constants */
4918 struct gl_constants Const
;
4920 /** \name The various 4x4 matrix stacks */
4922 struct gl_matrix_stack ModelviewMatrixStack
;
4923 struct gl_matrix_stack ProjectionMatrixStack
;
4924 struct gl_matrix_stack TextureMatrixStack
[MAX_TEXTURE_UNITS
];
4925 struct gl_matrix_stack ProgramMatrixStack
[MAX_PROGRAM_MATRICES
];
4926 struct gl_matrix_stack
*CurrentStack
; /**< Points to one of the above stacks */
4929 /** Combined modelview and projection matrix */
4930 GLmatrix _ModelProjectMatrix
;
4932 /** \name Display lists */
4933 struct gl_dlist_state ListState
;
4935 GLboolean ExecuteFlag
; /**< Execute GL commands? */
4936 GLboolean CompileFlag
; /**< Compile GL commands into display list? */
4938 /** Extension information */
4939 struct gl_extensions Extensions
;
4941 /** GL version integer, for example 31 for GL 3.1, or 20 for GLES 2.0. */
4943 char *VersionString
;
4945 /** \name State attribute stack (for glPush/PopAttrib) */
4947 GLuint AttribStackDepth
;
4948 struct gl_attrib_node
*AttribStack
[MAX_ATTRIB_STACK_DEPTH
];
4951 /** \name Renderer attribute groups
4953 * We define a struct for each attribute group to make pushing and popping
4954 * attributes easy. Also it's a good organization.
4957 struct gl_accum_attrib Accum
; /**< Accum buffer attributes */
4958 struct gl_colorbuffer_attrib Color
; /**< Color buffer attributes */
4959 struct gl_current_attrib Current
; /**< Current attributes */
4960 struct gl_depthbuffer_attrib Depth
; /**< Depth buffer attributes */
4961 struct gl_eval_attrib Eval
; /**< Eval attributes */
4962 struct gl_fog_attrib Fog
; /**< Fog attributes */
4963 struct gl_hint_attrib Hint
; /**< Hint attributes */
4964 struct gl_light_attrib Light
; /**< Light attributes */
4965 struct gl_line_attrib Line
; /**< Line attributes */
4966 struct gl_list_attrib List
; /**< List attributes */
4967 struct gl_multisample_attrib Multisample
;
4968 struct gl_pixel_attrib Pixel
; /**< Pixel attributes */
4969 struct gl_point_attrib Point
; /**< Point attributes */
4970 struct gl_polygon_attrib Polygon
; /**< Polygon attributes */
4971 GLuint PolygonStipple
[32]; /**< Polygon stipple */
4972 struct gl_scissor_attrib Scissor
; /**< Scissor attributes */
4973 struct gl_stencil_attrib Stencil
; /**< Stencil buffer attributes */
4974 struct gl_texture_attrib Texture
; /**< Texture attributes */
4975 struct gl_transform_attrib Transform
; /**< Transformation attributes */
4976 struct gl_viewport_attrib ViewportArray
[MAX_VIEWPORTS
]; /**< Viewport attributes */
4977 GLuint SubpixelPrecisionBias
[2]; /**< Viewport attributes */
4980 /** \name Client attribute stack */
4982 GLuint ClientAttribStackDepth
;
4983 struct gl_attrib_node
*ClientAttribStack
[MAX_CLIENT_ATTRIB_STACK_DEPTH
];
4986 /** \name Client attribute groups */
4988 struct gl_array_attrib Array
; /**< Vertex arrays */
4989 struct gl_pixelstore_attrib Pack
; /**< Pixel packing */
4990 struct gl_pixelstore_attrib Unpack
; /**< Pixel unpacking */
4991 struct gl_pixelstore_attrib DefaultPacking
; /**< Default params */
4994 /** \name Other assorted state (not pushed/popped on attribute stack) */
4996 struct gl_pixelmaps PixelMaps
;
4998 struct gl_evaluators EvalMap
; /**< All evaluators */
4999 struct gl_feedback Feedback
; /**< Feedback */
5000 struct gl_selection Select
; /**< Selection */
5002 struct gl_program_state Program
; /**< general program state */
5003 struct gl_vertex_program_state VertexProgram
;
5004 struct gl_fragment_program_state FragmentProgram
;
5005 struct gl_geometry_program_state GeometryProgram
;
5006 struct gl_compute_program_state ComputeProgram
;
5007 struct gl_tess_ctrl_program_state TessCtrlProgram
;
5008 struct gl_tess_eval_program_state TessEvalProgram
;
5009 struct gl_ati_fragment_shader_state ATIFragmentShader
;
5011 struct gl_pipeline_shader_state Pipeline
; /**< GLSL pipeline shader object state */
5012 struct gl_pipeline_object Shader
; /**< GLSL shader object state */
5015 * Current active shader pipeline state
5017 * Almost all internal users want ::_Shader instead of ::Shader. The
5018 * exceptions are bits of legacy GLSL API that do not know about separate
5021 * If a program is active via \c glUseProgram, this will point to
5024 * If a program pipeline is active via \c glBindProgramPipeline, this will
5025 * point to \c ::Pipeline.Current.
5027 * If neither a program nor a program pipeline is active, this will point to
5028 * \c ::Pipeline.Default. This ensures that \c ::_Shader will never be
5031 struct gl_pipeline_object
*_Shader
;
5034 * NIR containing the functions that implement software fp64 support.
5036 struct nir_shader
*SoftFP64
;
5038 struct gl_query_state Query
; /**< occlusion, timer queries */
5040 struct gl_transform_feedback_state TransformFeedback
;
5042 struct gl_perf_monitor_state PerfMonitor
;
5043 struct gl_perf_query_state PerfQuery
;
5045 struct gl_buffer_object
*DrawIndirectBuffer
; /** < GL_ARB_draw_indirect */
5046 struct gl_buffer_object
*ParameterBuffer
; /** < GL_ARB_indirect_parameters */
5047 struct gl_buffer_object
*DispatchIndirectBuffer
; /** < GL_ARB_compute_shader */
5049 struct gl_buffer_object
*CopyReadBuffer
; /**< GL_ARB_copy_buffer */
5050 struct gl_buffer_object
*CopyWriteBuffer
; /**< GL_ARB_copy_buffer */
5052 struct gl_buffer_object
*QueryBuffer
; /**< GL_ARB_query_buffer_object */
5055 * Current GL_ARB_uniform_buffer_object binding referenced by
5056 * GL_UNIFORM_BUFFER target for glBufferData, glMapBuffer, etc.
5058 struct gl_buffer_object
*UniformBuffer
;
5061 * Current GL_ARB_shader_storage_buffer_object binding referenced by
5062 * GL_SHADER_STORAGE_BUFFER target for glBufferData, glMapBuffer, etc.
5064 struct gl_buffer_object
*ShaderStorageBuffer
;
5067 * Array of uniform buffers for GL_ARB_uniform_buffer_object and GL 3.1.
5068 * This is set up using glBindBufferRange() or glBindBufferBase(). They are
5069 * associated with uniform blocks by glUniformBlockBinding()'s state in the
5072 struct gl_buffer_binding
5073 UniformBufferBindings
[MAX_COMBINED_UNIFORM_BUFFERS
];
5076 * Array of shader storage buffers for ARB_shader_storage_buffer_object
5077 * and GL 4.3. This is set up using glBindBufferRange() or
5078 * glBindBufferBase(). They are associated with shader storage blocks by
5079 * glShaderStorageBlockBinding()'s state in the shader program.
5081 struct gl_buffer_binding
5082 ShaderStorageBufferBindings
[MAX_COMBINED_SHADER_STORAGE_BUFFERS
];
5085 * Object currently associated with the GL_ATOMIC_COUNTER_BUFFER
5088 struct gl_buffer_object
*AtomicBuffer
;
5091 * Object currently associated w/ the GL_EXTERNAL_VIRTUAL_MEMORY_BUFFER_AMD
5094 struct gl_buffer_object
*ExternalVirtualMemoryBuffer
;
5097 * Array of atomic counter buffer binding points.
5099 struct gl_buffer_binding
5100 AtomicBufferBindings
[MAX_COMBINED_ATOMIC_BUFFERS
];
5103 * Array of image units for ARB_shader_image_load_store.
5105 struct gl_image_unit ImageUnits
[MAX_IMAGE_UNITS
];
5107 struct gl_subroutine_index_binding SubroutineIndex
[MESA_SHADER_STAGES
];
5110 struct gl_meta_state
*Meta
; /**< for "meta" operations */
5112 /* GL_EXT_framebuffer_object */
5113 struct gl_renderbuffer
*CurrentRenderbuffer
;
5115 GLenum16 ErrorValue
; /**< Last error code */
5118 * Recognize and silence repeated error debug messages in buggy apps.
5120 const char *ErrorDebugFmtString
;
5121 GLuint ErrorDebugCount
;
5123 /* GL_ARB_debug_output/GL_KHR_debug */
5124 simple_mtx_t DebugMutex
;
5125 struct gl_debug_state
*Debug
;
5127 GLenum16 RenderMode
; /**< either GL_RENDER, GL_SELECT, GL_FEEDBACK */
5128 GLbitfield NewState
; /**< bitwise-or of _NEW_* flags */
5129 uint64_t NewDriverState
; /**< bitwise-or of flags from DriverFlags */
5131 struct gl_driver_flags DriverFlags
;
5133 GLboolean ViewportInitialized
; /**< has viewport size been initialized? */
5135 GLbitfield varying_vp_inputs
; /**< mask of VERT_BIT_* flags */
5137 /** \name Derived state */
5138 GLbitfield _ImageTransferState
;/**< bitwise-or of IMAGE_*_BIT flags */
5139 GLfloat _EyeZDir
[3];
5140 GLfloat _ModelViewInvScale
; /* may be for model- or eyespace lighting */
5141 GLfloat _ModelViewInvScaleEyespace
; /* always factor defined in spec */
5142 GLboolean _NeedEyeCoords
;
5143 GLboolean _ForceEyeCoords
;
5145 GLuint TextureStateTimestamp
; /**< detect changes to shared state */
5147 struct gl_list_extensions
*ListExt
; /**< driver dlist extensions */
5149 /** \name For debugging/development only */
5151 GLboolean FirstTimeCurrent
;
5155 * False if this context was created without a config. This is needed
5156 * because the initial state of glDrawBuffers depends on this
5158 GLboolean HasConfig
;
5160 GLboolean TextureFormatSupported
[MESA_FORMAT_COUNT
];
5162 GLboolean RasterDiscard
; /**< GL_RASTERIZER_DISCARD */
5163 GLboolean IntelConservativeRasterization
; /**< GL_CONSERVATIVE_RASTERIZATION_INTEL */
5164 GLboolean ConservativeRasterization
; /**< GL_CONSERVATIVE_RASTERIZATION_NV */
5165 GLfloat ConservativeRasterDilate
;
5166 GLenum16 ConservativeRasterMode
;
5168 GLboolean IntelBlackholeRender
; /**< GL_INTEL_blackhole_render */
5170 /** Does glVertexAttrib(0) alias glVertex()? */
5171 bool _AttribZeroAliasesVertex
;
5174 * When set, TileRasterOrderIncreasingX/Y control the order that a tiled
5175 * renderer's tiles should be excecuted, to meet the requirements of
5176 * GL_MESA_tile_raster_order.
5178 GLboolean TileRasterOrderFixed
;
5179 GLboolean TileRasterOrderIncreasingX
;
5180 GLboolean TileRasterOrderIncreasingY
;
5183 * \name Hooks for module contexts.
5185 * These will eventually live in the driver or elsewhere.
5188 void *swrast_context
;
5189 void *swsetup_context
;
5190 void *swtnl_context
;
5191 struct vbo_context
*vbo_context
;
5192 struct st_context
*st
;
5196 * \name NV_vdpau_interop
5199 const void *vdpDevice
;
5200 const void *vdpGetProcAddress
;
5201 struct set
*vdpSurfaces
;
5205 * Has this context observed a GPU reset in any context in the share group?
5207 * Once this field becomes true, it is never reset to false.
5209 GLboolean ShareGroupReset
;
5212 * \name OES_primitive_bounding_box
5214 * Stores the arguments to glPrimitiveBoundingBox
5216 GLfloat PrimitiveBoundingBox
[8];
5218 struct disk_cache
*Cache
;
5221 * \name GL_ARB_bindless_texture
5224 struct hash_table_u64
*ResidentTextureHandles
;
5225 struct hash_table_u64
*ResidentImageHandles
;
5228 bool shader_builtin_ref
;
5232 * Information about memory usage. All sizes are in kilobytes.
5234 struct gl_memory_info
5236 unsigned total_device_memory
; /**< size of device memory, e.g. VRAM */
5237 unsigned avail_device_memory
; /**< free device memory at the moment */
5238 unsigned total_staging_memory
; /**< size of staging memory, e.g. GART */
5239 unsigned avail_staging_memory
; /**< free staging memory at the moment */
5240 unsigned device_memory_evicted
; /**< size of memory evicted (monotonic counter) */
5241 unsigned nr_device_memory_evictions
; /**< # of evictions (monotonic counter) */
5245 extern int MESA_VERBOSE
;
5246 extern int MESA_DEBUG_FLAGS
;
5248 # define MESA_VERBOSE 0
5249 # define MESA_DEBUG_FLAGS 0
5253 /** The MESA_VERBOSE var is a bitmask of these flags */
5256 VERBOSE_VARRAY
= 0x0001,
5257 VERBOSE_TEXTURE
= 0x0002,
5258 VERBOSE_MATERIAL
= 0x0004,
5259 VERBOSE_PIPELINE
= 0x0008,
5260 VERBOSE_DRIVER
= 0x0010,
5261 VERBOSE_STATE
= 0x0020,
5262 VERBOSE_API
= 0x0040,
5263 VERBOSE_DISPLAY_LIST
= 0x0100,
5264 VERBOSE_LIGHTING
= 0x0200,
5265 VERBOSE_PRIMS
= 0x0400,
5266 VERBOSE_VERTS
= 0x0800,
5267 VERBOSE_DISASSEM
= 0x1000,
5268 VERBOSE_DRAW
= 0x2000,
5269 VERBOSE_SWAPBUFFERS
= 0x4000
5273 /** The MESA_DEBUG_FLAGS var is a bitmask of these flags */
5276 DEBUG_SILENT
= (1 << 0),
5277 DEBUG_ALWAYS_FLUSH
= (1 << 1),
5278 DEBUG_INCOMPLETE_TEXTURE
= (1 << 2),
5279 DEBUG_INCOMPLETE_FBO
= (1 << 3),
5280 DEBUG_CONTEXT
= (1 << 4)
5287 #endif /* MTYPES_H */