2 * Mesa 3-D graphics library
4 * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
5 * Copyright (C) 2009 VMware, Inc. All Rights Reserved.
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the "Software"),
9 * to deal in the Software without restriction, including without limitation
10 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11 * and/or sell copies of the Software, and to permit persons to whom the
12 * Software is furnished to do so, subject to the following conditions:
14 * The above copyright notice and this permission notice shall be included
15 * in all copies or substantial portions of the Software.
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
21 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
22 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
23 * OTHER DEALINGS IN THE SOFTWARE.
28 * Main Mesa data structures.
30 * Please try to mark derived values with a leading underscore ('_').
37 #include <stdint.h> /* uint32_t */
39 #include "c11/threads.h"
41 #include "main/glheader.h"
42 #include "main/config.h"
43 #include "glapi/glapi.h"
44 #include "math/m_matrix.h" /* GLmatrix */
45 #include "compiler/shader_enums.h"
46 #include "compiler/shader_info.h"
47 #include "main/formats.h" /* MESA_FORMAT_COUNT */
48 #include "compiler/glsl/list.h"
49 #include "util/simple_mtx.h"
50 #include "util/u_dynarray.h"
58 /** Set a single bit */
59 #define BITFIELD_BIT(b) ((GLbitfield)1 << (b))
60 /** Set all bits up to excluding bit b */
61 #define BITFIELD_MASK(b) \
62 ((b) == 32 ? (~(GLbitfield)0) : BITFIELD_BIT(b) - 1)
63 /** Set count bits starting from bit b */
64 #define BITFIELD_RANGE(b, count) \
65 (BITFIELD_MASK((b) + (count)) & ~BITFIELD_MASK(b))
69 * \name 64-bit extension of GLbitfield.
72 typedef GLuint64 GLbitfield64
;
74 /** Set a single bit */
75 #define BITFIELD64_BIT(b) ((GLbitfield64)1 << (b))
76 /** Set all bits up to excluding bit b */
77 #define BITFIELD64_MASK(b) \
78 ((b) == 64 ? (~(GLbitfield64)0) : BITFIELD64_BIT(b) - 1)
79 /** Set count bits starting from bit b */
80 #define BITFIELD64_RANGE(b, count) \
81 (BITFIELD64_MASK((b) + (count)) & ~BITFIELD64_MASK(b))
85 * \name Some forward type declarations
88 struct _mesa_HashTable
;
89 struct gl_attrib_node
;
90 struct gl_list_extensions
;
92 struct gl_program_cache
;
93 struct gl_texture_object
;
94 struct gl_debug_state
;
97 struct gl_uniform_storage
;
98 struct prog_instruction
;
99 struct gl_program_parameter_list
;
100 struct gl_shader_spirv_data
;
106 /** Extra draw modes beyond GL_POINTS, GL_TRIANGLE_FAN, etc */
107 #define PRIM_MAX GL_PATCHES
108 #define PRIM_OUTSIDE_BEGIN_END (PRIM_MAX + 1)
109 #define PRIM_UNKNOWN (PRIM_MAX + 2)
112 * Determine if the given gl_varying_slot appears in the fragment shader.
114 static inline GLboolean
115 _mesa_varying_slot_in_fs(gl_varying_slot slot
)
118 case VARYING_SLOT_PSIZ
:
119 case VARYING_SLOT_BFC0
:
120 case VARYING_SLOT_BFC1
:
121 case VARYING_SLOT_EDGE
:
122 case VARYING_SLOT_CLIP_VERTEX
:
123 case VARYING_SLOT_LAYER
:
124 case VARYING_SLOT_TESS_LEVEL_OUTER
:
125 case VARYING_SLOT_TESS_LEVEL_INNER
:
126 case VARYING_SLOT_BOUNDING_BOX0
:
127 case VARYING_SLOT_BOUNDING_BOX1
:
135 * Indexes for all renderbuffers
139 /* the four standard color buffers */
147 /* optional aux buffer */
149 /* generic renderbuffers */
163 * Bit flags for all renderbuffers
165 #define BUFFER_BIT_FRONT_LEFT (1 << BUFFER_FRONT_LEFT)
166 #define BUFFER_BIT_BACK_LEFT (1 << BUFFER_BACK_LEFT)
167 #define BUFFER_BIT_FRONT_RIGHT (1 << BUFFER_FRONT_RIGHT)
168 #define BUFFER_BIT_BACK_RIGHT (1 << BUFFER_BACK_RIGHT)
169 #define BUFFER_BIT_AUX0 (1 << BUFFER_AUX0)
170 #define BUFFER_BIT_AUX1 (1 << BUFFER_AUX1)
171 #define BUFFER_BIT_AUX2 (1 << BUFFER_AUX2)
172 #define BUFFER_BIT_AUX3 (1 << BUFFER_AUX3)
173 #define BUFFER_BIT_DEPTH (1 << BUFFER_DEPTH)
174 #define BUFFER_BIT_STENCIL (1 << BUFFER_STENCIL)
175 #define BUFFER_BIT_ACCUM (1 << BUFFER_ACCUM)
176 #define BUFFER_BIT_COLOR0 (1 << BUFFER_COLOR0)
177 #define BUFFER_BIT_COLOR1 (1 << BUFFER_COLOR1)
178 #define BUFFER_BIT_COLOR2 (1 << BUFFER_COLOR2)
179 #define BUFFER_BIT_COLOR3 (1 << BUFFER_COLOR3)
180 #define BUFFER_BIT_COLOR4 (1 << BUFFER_COLOR4)
181 #define BUFFER_BIT_COLOR5 (1 << BUFFER_COLOR5)
182 #define BUFFER_BIT_COLOR6 (1 << BUFFER_COLOR6)
183 #define BUFFER_BIT_COLOR7 (1 << BUFFER_COLOR7)
186 * Mask of all the color buffer bits (but not accum).
188 #define BUFFER_BITS_COLOR (BUFFER_BIT_FRONT_LEFT | \
189 BUFFER_BIT_BACK_LEFT | \
190 BUFFER_BIT_FRONT_RIGHT | \
191 BUFFER_BIT_BACK_RIGHT | \
193 BUFFER_BIT_COLOR0 | \
194 BUFFER_BIT_COLOR1 | \
195 BUFFER_BIT_COLOR2 | \
196 BUFFER_BIT_COLOR3 | \
197 BUFFER_BIT_COLOR4 | \
198 BUFFER_BIT_COLOR5 | \
199 BUFFER_BIT_COLOR6 | \
202 /* Mask of bits for depth+stencil buffers */
203 #define BUFFER_BITS_DEPTH_STENCIL (BUFFER_BIT_DEPTH | BUFFER_BIT_STENCIL)
206 * Framebuffer configuration (aka visual / pixelformat)
207 * Note: some of these fields should be boolean, but it appears that
208 * code in drivers/dri/common/util.c requires int-sized fields.
214 GLuint doubleBufferMode
;
217 GLboolean haveAccumBuffer
;
218 GLboolean haveDepthBuffer
;
219 GLboolean haveStencilBuffer
;
221 GLint redBits
, greenBits
, blueBits
, alphaBits
; /* bits per comp */
222 GLuint redMask
, greenMask
, blueMask
, alphaMask
;
223 GLint rgbBits
; /* total bits for rgb */
224 GLint indexBits
; /* total bits for colorindex */
226 GLint accumRedBits
, accumGreenBits
, accumBlueBits
, accumAlphaBits
;
234 /* EXT_visual_rating / GLX 1.2 */
237 /* EXT_visual_info / GLX 1.2 */
238 GLint transparentPixel
;
239 /* colors are floats scaled to ints */
240 GLint transparentRed
, transparentGreen
, transparentBlue
, transparentAlpha
;
241 GLint transparentIndex
;
243 /* ARB_multisample / SGIS_multisample */
247 /* SGIX_pbuffer / GLX 1.3 */
248 GLint maxPbufferWidth
;
249 GLint maxPbufferHeight
;
250 GLint maxPbufferPixels
;
251 GLint optimalPbufferWidth
; /* Only for SGIX_pbuffer. */
252 GLint optimalPbufferHeight
; /* Only for SGIX_pbuffer. */
254 /* OML_swap_method */
257 /* EXT_texture_from_pixmap */
258 GLint bindToTextureRgb
;
259 GLint bindToTextureRgba
;
260 GLint bindToMipmapTexture
;
261 GLint bindToTextureTargets
;
264 /* EXT_framebuffer_sRGB */
270 * \name Bit flags used for updating material values.
273 #define MAT_ATTRIB_FRONT_AMBIENT 0
274 #define MAT_ATTRIB_BACK_AMBIENT 1
275 #define MAT_ATTRIB_FRONT_DIFFUSE 2
276 #define MAT_ATTRIB_BACK_DIFFUSE 3
277 #define MAT_ATTRIB_FRONT_SPECULAR 4
278 #define MAT_ATTRIB_BACK_SPECULAR 5
279 #define MAT_ATTRIB_FRONT_EMISSION 6
280 #define MAT_ATTRIB_BACK_EMISSION 7
281 #define MAT_ATTRIB_FRONT_SHININESS 8
282 #define MAT_ATTRIB_BACK_SHININESS 9
283 #define MAT_ATTRIB_FRONT_INDEXES 10
284 #define MAT_ATTRIB_BACK_INDEXES 11
285 #define MAT_ATTRIB_MAX 12
287 #define MAT_ATTRIB_AMBIENT(f) (MAT_ATTRIB_FRONT_AMBIENT+(f))
288 #define MAT_ATTRIB_DIFFUSE(f) (MAT_ATTRIB_FRONT_DIFFUSE+(f))
289 #define MAT_ATTRIB_SPECULAR(f) (MAT_ATTRIB_FRONT_SPECULAR+(f))
290 #define MAT_ATTRIB_EMISSION(f) (MAT_ATTRIB_FRONT_EMISSION+(f))
291 #define MAT_ATTRIB_SHININESS(f)(MAT_ATTRIB_FRONT_SHININESS+(f))
292 #define MAT_ATTRIB_INDEXES(f) (MAT_ATTRIB_FRONT_INDEXES+(f))
294 #define MAT_BIT_FRONT_AMBIENT (1<<MAT_ATTRIB_FRONT_AMBIENT)
295 #define MAT_BIT_BACK_AMBIENT (1<<MAT_ATTRIB_BACK_AMBIENT)
296 #define MAT_BIT_FRONT_DIFFUSE (1<<MAT_ATTRIB_FRONT_DIFFUSE)
297 #define MAT_BIT_BACK_DIFFUSE (1<<MAT_ATTRIB_BACK_DIFFUSE)
298 #define MAT_BIT_FRONT_SPECULAR (1<<MAT_ATTRIB_FRONT_SPECULAR)
299 #define MAT_BIT_BACK_SPECULAR (1<<MAT_ATTRIB_BACK_SPECULAR)
300 #define MAT_BIT_FRONT_EMISSION (1<<MAT_ATTRIB_FRONT_EMISSION)
301 #define MAT_BIT_BACK_EMISSION (1<<MAT_ATTRIB_BACK_EMISSION)
302 #define MAT_BIT_FRONT_SHININESS (1<<MAT_ATTRIB_FRONT_SHININESS)
303 #define MAT_BIT_BACK_SHININESS (1<<MAT_ATTRIB_BACK_SHININESS)
304 #define MAT_BIT_FRONT_INDEXES (1<<MAT_ATTRIB_FRONT_INDEXES)
305 #define MAT_BIT_BACK_INDEXES (1<<MAT_ATTRIB_BACK_INDEXES)
308 #define FRONT_MATERIAL_BITS (MAT_BIT_FRONT_EMISSION | \
309 MAT_BIT_FRONT_AMBIENT | \
310 MAT_BIT_FRONT_DIFFUSE | \
311 MAT_BIT_FRONT_SPECULAR | \
312 MAT_BIT_FRONT_SHININESS | \
313 MAT_BIT_FRONT_INDEXES)
315 #define BACK_MATERIAL_BITS (MAT_BIT_BACK_EMISSION | \
316 MAT_BIT_BACK_AMBIENT | \
317 MAT_BIT_BACK_DIFFUSE | \
318 MAT_BIT_BACK_SPECULAR | \
319 MAT_BIT_BACK_SHININESS | \
320 MAT_BIT_BACK_INDEXES)
322 #define ALL_MATERIAL_BITS (FRONT_MATERIAL_BITS | BACK_MATERIAL_BITS)
331 GLfloat Attrib
[MAT_ATTRIB_MAX
][4];
339 #define LIGHT_SPOT 0x1
340 #define LIGHT_LOCAL_VIEWER 0x2
341 #define LIGHT_POSITIONAL 0x4
342 #define LIGHT_NEED_VERTICES (LIGHT_POSITIONAL|LIGHT_LOCAL_VIEWER)
347 * Light source state.
351 GLfloat Ambient
[4]; /**< ambient color */
352 GLfloat Diffuse
[4]; /**< diffuse color */
353 GLfloat Specular
[4]; /**< specular color */
354 GLfloat EyePosition
[4]; /**< position in eye coordinates */
355 GLfloat SpotDirection
[4]; /**< spotlight direction in eye coordinates */
356 GLfloat SpotExponent
;
357 GLfloat SpotCutoff
; /**< in degrees */
358 GLfloat _CosCutoff
; /**< = MAX(0, cos(SpotCutoff)) */
359 GLfloat ConstantAttenuation
;
360 GLfloat LinearAttenuation
;
361 GLfloat QuadraticAttenuation
;
362 GLboolean Enabled
; /**< On/off flag */
365 * \name Derived fields
368 GLbitfield _Flags
; /**< Mask of LIGHT_x bits defined above */
370 GLfloat _Position
[4]; /**< position in eye/obj coordinates */
371 GLfloat _VP_inf_norm
[3]; /**< Norm direction to infinite light */
372 GLfloat _h_inf_norm
[3]; /**< Norm( _VP_inf_norm + <0,0,1> ) */
373 GLfloat _NormSpotDirection
[4]; /**< normalized spotlight direction */
374 GLfloat _VP_inf_spot_attenuation
;
376 GLfloat _MatAmbient
[2][3]; /**< material ambient * light ambient */
377 GLfloat _MatDiffuse
[2][3]; /**< material diffuse * light diffuse */
378 GLfloat _MatSpecular
[2][3]; /**< material spec * light specular */
388 GLfloat Ambient
[4]; /**< ambient color */
389 GLboolean LocalViewer
; /**< Local (or infinite) view point? */
390 GLboolean TwoSide
; /**< Two (or one) sided lighting? */
391 GLenum ColorControl
; /**< either GL_SINGLE_COLOR
392 or GL_SEPARATE_SPECULAR_COLOR */
397 * Accumulation buffer attribute group (GL_ACCUM_BUFFER_BIT)
399 struct gl_accum_attrib
401 GLfloat ClearColor
[4]; /**< Accumulation buffer clear color */
406 * Used for storing clear color, texture border color, etc.
407 * The float values are typically unclamped.
417 * Remapped color logical operations
419 * With the exception of NVIDIA hardware, which consumes the OpenGL enumerants
420 * directly, everything wants this mapping of color logical operations.
422 * Fun fact: These values are just the bit-reverse of the low-nibble of the GL
423 * enumerant values (i.e., `GL_NOOP & 0x0f` is `b0101' while
424 * \c COLOR_LOGICOP_NOOP is `b1010`).
426 * Fun fact #2: These values are just an encoding of the operation as a table
427 * of bit values. The result of the logic op is:
429 * result_bit = (logic_op >> (2 * src_bit + dst_bit)) & 1
431 * For the GL enums, the result is:
433 * result_bit = logic_op & (1 << (2 * src_bit + dst_bit))
435 enum PACKED gl_logicop_mode
{
436 COLOR_LOGICOP_CLEAR
= 0,
437 COLOR_LOGICOP_NOR
= 1,
438 COLOR_LOGICOP_AND_INVERTED
= 2,
439 COLOR_LOGICOP_COPY_INVERTED
= 3,
440 COLOR_LOGICOP_AND_REVERSE
= 4,
441 COLOR_LOGICOP_INVERT
= 5,
442 COLOR_LOGICOP_XOR
= 6,
443 COLOR_LOGICOP_NAND
= 7,
444 COLOR_LOGICOP_AND
= 8,
445 COLOR_LOGICOP_EQUIV
= 9,
446 COLOR_LOGICOP_NOOP
= 10,
447 COLOR_LOGICOP_OR_INVERTED
= 11,
448 COLOR_LOGICOP_COPY
= 12,
449 COLOR_LOGICOP_OR_REVERSE
= 13,
450 COLOR_LOGICOP_OR
= 14,
451 COLOR_LOGICOP_SET
= 15
455 * Color buffer attribute group (GL_COLOR_BUFFER_BIT).
457 struct gl_colorbuffer_attrib
459 GLuint ClearIndex
; /**< Index for glClear */
460 union gl_color_union ClearColor
; /**< Color for glClear, unclamped */
461 GLuint IndexMask
; /**< Color index write mask */
462 GLubyte ColorMask
[MAX_DRAW_BUFFERS
][4]; /**< Each flag is 0xff or 0x0 */
464 GLenum DrawBuffer
[MAX_DRAW_BUFFERS
]; /**< Which buffer to draw into */
467 * \name alpha testing
470 GLboolean AlphaEnabled
; /**< Alpha test enabled flag */
471 GLenum AlphaFunc
; /**< Alpha test function */
472 GLfloat AlphaRefUnclamped
;
473 GLclampf AlphaRef
; /**< Alpha reference value */
480 GLbitfield BlendEnabled
; /**< Per-buffer blend enable flags */
482 /* NOTE: this does _not_ depend on fragment clamping or any other clamping
483 * control, only on the fixed-pointness of the render target.
484 * The query does however depend on fragment color clamping.
486 GLfloat BlendColorUnclamped
[4]; /**< Blending color */
487 GLfloat BlendColor
[4]; /**< Blending color */
491 GLenum SrcRGB
; /**< RGB blend source term */
492 GLenum DstRGB
; /**< RGB blend dest term */
493 GLenum SrcA
; /**< Alpha blend source term */
494 GLenum DstA
; /**< Alpha blend dest term */
495 GLenum EquationRGB
; /**< GL_ADD, GL_SUBTRACT, etc. */
496 GLenum EquationA
; /**< GL_ADD, GL_SUBTRACT, etc. */
498 * Set if any blend factor uses SRC1. Computed at the time blend factors
501 GLboolean _UsesDualSrc
;
502 } Blend
[MAX_DRAW_BUFFERS
];
503 /** Are the blend func terms currently different for each buffer/target? */
504 GLboolean _BlendFuncPerBuffer
;
505 /** Are the blend equations currently different for each buffer/target? */
506 GLboolean _BlendEquationPerBuffer
;
509 * Which advanced blending mode is in use (or BLEND_NONE).
511 * KHR_blend_equation_advanced only allows advanced blending with a single
512 * draw buffer, and NVX_blend_equation_advanced_multi_draw_buffer still
513 * requires all draw buffers to match, so we only need a single value.
515 enum gl_advanced_blend_mode _AdvancedBlendMode
;
517 /** Coherency requested via glEnable(GL_BLEND_ADVANCED_COHERENT_KHR)? */
525 GLboolean IndexLogicOpEnabled
; /**< Color index logic op enabled flag */
526 GLboolean ColorLogicOpEnabled
; /**< RGBA logic op enabled flag */
527 GLenum LogicOp
; /**< Logic operator */
528 enum gl_logicop_mode _LogicOp
;
532 GLboolean DitherFlag
; /**< Dither enable flag */
534 GLboolean _ClampFragmentColor
; /** < with GL_FIXED_ONLY_ARB resolved */
535 GLenum ClampFragmentColor
; /**< GL_TRUE, GL_FALSE or GL_FIXED_ONLY_ARB */
536 GLenum ClampReadColor
; /**< GL_TRUE, GL_FALSE or GL_FIXED_ONLY_ARB */
538 GLboolean sRGBEnabled
; /**< Framebuffer sRGB blending/updating requested */
543 * Current attribute group (GL_CURRENT_BIT).
545 struct gl_current_attrib
548 * \name Current vertex attributes (color, texcoords, etc).
549 * \note Values are valid only after FLUSH_VERTICES has been called.
550 * \note Index and Edgeflag current values are stored as floats in the
551 * SIX and SEVEN attribute slots.
552 * \note We need double storage for 64-bit vertex attributes
554 GLfloat Attrib
[VERT_ATTRIB_MAX
][4*2];
557 * \name Current raster position attributes (always up to date after a
560 GLfloat RasterPos
[4];
561 GLfloat RasterDistance
;
562 GLfloat RasterColor
[4];
563 GLfloat RasterSecondaryColor
[4];
564 GLfloat RasterTexCoords
[MAX_TEXTURE_COORD_UNITS
][4];
565 GLboolean RasterPosValid
;
570 * Depth buffer attribute group (GL_DEPTH_BUFFER_BIT).
572 struct gl_depthbuffer_attrib
574 GLenum Func
; /**< Function for depth buffer compare */
575 GLclampd Clear
; /**< Value to clear depth buffer to */
576 GLboolean Test
; /**< Depth buffering enabled flag */
577 GLboolean Mask
; /**< Depth buffer writable? */
578 GLboolean BoundsTest
; /**< GL_EXT_depth_bounds_test */
579 GLfloat BoundsMin
, BoundsMax
;/**< GL_EXT_depth_bounds_test */
584 * Evaluator attribute group (GL_EVAL_BIT).
586 struct gl_eval_attrib
592 GLboolean Map1Color4
;
594 GLboolean Map1Normal
;
595 GLboolean Map1TextureCoord1
;
596 GLboolean Map1TextureCoord2
;
597 GLboolean Map1TextureCoord3
;
598 GLboolean Map1TextureCoord4
;
599 GLboolean Map1Vertex3
;
600 GLboolean Map1Vertex4
;
601 GLboolean Map2Color4
;
603 GLboolean Map2Normal
;
604 GLboolean Map2TextureCoord1
;
605 GLboolean Map2TextureCoord2
;
606 GLboolean Map2TextureCoord3
;
607 GLboolean Map2TextureCoord4
;
608 GLboolean Map2Vertex3
;
609 GLboolean Map2Vertex4
;
610 GLboolean AutoNormal
;
614 * \name Map Grid endpoints and divisions and calculated du values
618 GLfloat MapGrid1u1
, MapGrid1u2
, MapGrid1du
;
619 GLint MapGrid2un
, MapGrid2vn
;
620 GLfloat MapGrid2u1
, MapGrid2u2
, MapGrid2du
;
621 GLfloat MapGrid2v1
, MapGrid2v2
, MapGrid2dv
;
627 * Compressed fog mode.
639 * Fog attribute group (GL_FOG_BIT).
643 GLboolean Enabled
; /**< Fog enabled flag */
644 GLboolean ColorSumEnabled
;
645 uint8_t _PackedMode
; /**< Fog mode as 2 bits */
646 uint8_t _PackedEnabledMode
; /**< Masked CompressedMode */
647 GLfloat ColorUnclamped
[4]; /**< Fog color */
648 GLfloat Color
[4]; /**< Fog color */
649 GLfloat Density
; /**< Density >= 0.0 */
650 GLfloat Start
; /**< Start distance in eye coords */
651 GLfloat End
; /**< End distance in eye coords */
652 GLfloat Index
; /**< Fog index */
653 GLenum Mode
; /**< Fog mode */
654 GLenum FogCoordinateSource
; /**< GL_EXT_fog_coord */
655 GLfloat _Scale
; /**< (End == Start) ? 1.0 : 1.0 / (End - Start) */
656 GLenum FogDistanceMode
; /**< GL_NV_fog_distance */
661 * Hint attribute group (GL_HINT_BIT).
663 * Values are always one of GL_FASTEST, GL_NICEST, or GL_DONT_CARE.
665 struct gl_hint_attrib
667 GLenum PerspectiveCorrection
;
670 GLenum PolygonSmooth
;
672 GLenum TextureCompression
; /**< GL_ARB_texture_compression */
673 GLenum GenerateMipmap
; /**< GL_SGIS_generate_mipmap */
674 GLenum FragmentShaderDerivative
; /**< GL_ARB_fragment_shader */
679 * Lighting attribute group (GL_LIGHT_BIT).
681 struct gl_light_attrib
683 struct gl_light Light
[MAX_LIGHTS
]; /**< Array of light sources */
684 struct gl_lightmodel Model
; /**< Lighting model */
687 * Front and back material values.
688 * Note: must call FLUSH_VERTICES() before using.
690 struct gl_material Material
;
692 GLboolean Enabled
; /**< Lighting enabled flag */
693 GLboolean ColorMaterialEnabled
;
695 GLenum ShadeModel
; /**< GL_FLAT or GL_SMOOTH */
696 GLenum ProvokingVertex
; /**< GL_EXT_provoking_vertex */
697 GLenum ColorMaterialFace
; /**< GL_FRONT, BACK or FRONT_AND_BACK */
698 GLenum ColorMaterialMode
; /**< GL_AMBIENT, GL_DIFFUSE, etc */
699 GLbitfield _ColorMaterialBitmask
; /**< bitmask formed from Face and Mode */
702 GLboolean _ClampVertexColor
;
703 GLenum ClampVertexColor
; /**< GL_TRUE, GL_FALSE, GL_FIXED_ONLY */
706 * Derived state for optimizations:
709 GLbitfield _EnabledLights
; /**< bitmask containing enabled lights */
711 GLboolean _NeedEyeCoords
;
712 GLboolean _NeedVertices
; /**< Use fast shader? */
714 GLfloat _BaseColor
[2][3];
720 * Line attribute group (GL_LINE_BIT).
722 struct gl_line_attrib
724 GLboolean SmoothFlag
; /**< GL_LINE_SMOOTH enabled? */
725 GLboolean StippleFlag
; /**< GL_LINE_STIPPLE enabled? */
726 GLushort StipplePattern
; /**< Stipple pattern */
727 GLint StippleFactor
; /**< Stipple repeat factor */
728 GLfloat Width
; /**< Line width */
733 * Display list attribute group (GL_LIST_BIT).
735 struct gl_list_attrib
742 * Multisample attribute group (GL_MULTISAMPLE_BIT).
744 struct gl_multisample_attrib
747 GLboolean SampleAlphaToCoverage
;
748 GLboolean SampleAlphaToOne
;
749 GLboolean SampleCoverage
;
750 GLboolean SampleCoverageInvert
;
751 GLboolean SampleShading
;
753 /* ARB_texture_multisample / GL3.2 additions */
754 GLboolean SampleMask
;
756 GLfloat SampleCoverageValue
; /**< In range [0, 1] */
757 GLfloat MinSampleShadingValue
; /**< In range [0, 1] */
759 /** The GL spec defines this as an array but >32x MSAA is madness */
760 GLbitfield SampleMaskValue
;
765 * A pixelmap (see glPixelMap)
770 GLfloat Map
[MAX_PIXEL_MAP_TABLE
];
775 * Collection of all pixelmaps
779 struct gl_pixelmap RtoR
; /**< i.e. GL_PIXEL_MAP_R_TO_R */
780 struct gl_pixelmap GtoG
;
781 struct gl_pixelmap BtoB
;
782 struct gl_pixelmap AtoA
;
783 struct gl_pixelmap ItoR
;
784 struct gl_pixelmap ItoG
;
785 struct gl_pixelmap ItoB
;
786 struct gl_pixelmap ItoA
;
787 struct gl_pixelmap ItoI
;
788 struct gl_pixelmap StoS
;
793 * Pixel attribute group (GL_PIXEL_MODE_BIT).
795 struct gl_pixel_attrib
797 GLenum ReadBuffer
; /**< source buffer for glRead/CopyPixels() */
799 /*--- Begin Pixel Transfer State ---*/
800 /* Fields are in the order in which they're applied... */
802 /** Scale & Bias (index shift, offset) */
804 GLfloat RedBias
, RedScale
;
805 GLfloat GreenBias
, GreenScale
;
806 GLfloat BlueBias
, BlueScale
;
807 GLfloat AlphaBias
, AlphaScale
;
808 GLfloat DepthBias
, DepthScale
;
809 GLint IndexShift
, IndexOffset
;
813 /* Note: actual pixel maps are not part of this attrib group */
814 GLboolean MapColorFlag
;
815 GLboolean MapStencilFlag
;
817 /*--- End Pixel Transfer State ---*/
820 GLfloat ZoomX
, ZoomY
;
825 * Point attribute group (GL_POINT_BIT).
827 struct gl_point_attrib
829 GLfloat Size
; /**< User-specified point size */
830 GLfloat Params
[3]; /**< GL_EXT_point_parameters */
831 GLfloat MinSize
, MaxSize
; /**< GL_EXT_point_parameters */
832 GLfloat Threshold
; /**< GL_EXT_point_parameters */
833 GLboolean SmoothFlag
; /**< True if GL_POINT_SMOOTH is enabled */
834 GLboolean _Attenuated
; /**< True if Params != [1, 0, 0] */
835 GLboolean PointSprite
; /**< GL_NV/ARB_point_sprite */
836 GLbitfield CoordReplace
; /**< GL_ARB_point_sprite*/
837 GLenum SpriteRMode
; /**< GL_NV_point_sprite (only!) */
838 GLenum SpriteOrigin
; /**< GL_ARB_point_sprite */
843 * Polygon attribute group (GL_POLYGON_BIT).
845 struct gl_polygon_attrib
847 GLenum FrontFace
; /**< Either GL_CW or GL_CCW */
848 GLenum FrontMode
; /**< Either GL_POINT, GL_LINE or GL_FILL */
849 GLenum BackMode
; /**< Either GL_POINT, GL_LINE or GL_FILL */
850 GLboolean CullFlag
; /**< Culling on/off flag */
851 GLboolean SmoothFlag
; /**< True if GL_POLYGON_SMOOTH is enabled */
852 GLboolean StippleFlag
; /**< True if GL_POLYGON_STIPPLE is enabled */
853 GLenum CullFaceMode
; /**< Culling mode GL_FRONT or GL_BACK */
854 GLfloat OffsetFactor
; /**< Polygon offset factor, from user */
855 GLfloat OffsetUnits
; /**< Polygon offset units, from user */
856 GLfloat OffsetClamp
; /**< Polygon offset clamp, from user */
857 GLboolean OffsetPoint
; /**< Offset in GL_POINT mode */
858 GLboolean OffsetLine
; /**< Offset in GL_LINE mode */
859 GLboolean OffsetFill
; /**< Offset in GL_FILL mode */
864 * Scissor attributes (GL_SCISSOR_BIT).
866 struct gl_scissor_rect
868 GLint X
, Y
; /**< Lower left corner of box */
869 GLsizei Width
, Height
; /**< Size of box */
873 struct gl_scissor_attrib
875 GLbitfield EnableFlags
; /**< Scissor test enabled? */
876 struct gl_scissor_rect ScissorArray
[MAX_VIEWPORTS
];
877 GLint NumWindowRects
; /**< Count of enabled window rectangles */
878 GLenum WindowRectMode
; /**< Whether to include or exclude the rects */
879 struct gl_scissor_rect WindowRects
[MAX_WINDOW_RECTANGLES
];
884 * Stencil attribute group (GL_STENCIL_BUFFER_BIT).
886 * Three sets of stencil data are tracked so that OpenGL 2.0,
887 * GL_EXT_stencil_two_side, and GL_ATI_separate_stencil can all be supported
888 * simultaneously. In each of the stencil state arrays, element 0 corresponds
889 * to GL_FRONT. Element 1 corresponds to the OpenGL 2.0 /
890 * GL_ATI_separate_stencil GL_BACK state. Element 2 corresponds to the
891 * GL_EXT_stencil_two_side GL_BACK state.
893 * The derived value \c _BackFace is either 1 or 2 depending on whether or
894 * not GL_STENCIL_TEST_TWO_SIDE_EXT is enabled.
896 * The derived value \c _TestTwoSide is set when the front-face and back-face
897 * stencil state are different.
899 struct gl_stencil_attrib
901 GLboolean Enabled
; /**< Enabled flag */
902 GLboolean TestTwoSide
; /**< GL_EXT_stencil_two_side */
903 GLubyte ActiveFace
; /**< GL_EXT_stencil_two_side (0 or 2) */
904 GLubyte _BackFace
; /**< Current back stencil state (1 or 2) */
905 GLenum Function
[3]; /**< Stencil function */
906 GLenum FailFunc
[3]; /**< Fail function */
907 GLenum ZPassFunc
[3]; /**< Depth buffer pass function */
908 GLenum ZFailFunc
[3]; /**< Depth buffer fail function */
909 GLint Ref
[3]; /**< Reference value */
910 GLuint ValueMask
[3]; /**< Value mask */
911 GLuint WriteMask
[3]; /**< Write mask */
912 GLuint Clear
; /**< Clear value */
917 * An index for each type of texture object. These correspond to the GL
918 * texture target enums, such as GL_TEXTURE_2D, GL_TEXTURE_CUBE_MAP, etc.
919 * Note: the order is from highest priority to lowest priority.
923 TEXTURE_2D_MULTISAMPLE_INDEX
,
924 TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX
,
925 TEXTURE_CUBE_ARRAY_INDEX
,
926 TEXTURE_BUFFER_INDEX
,
927 TEXTURE_2D_ARRAY_INDEX
,
928 TEXTURE_1D_ARRAY_INDEX
,
929 TEXTURE_EXTERNAL_INDEX
,
940 * Bit flags for each type of texture object
943 #define TEXTURE_2D_MULTISAMPLE_BIT (1 << TEXTURE_2D_MULTISAMPLE_INDEX)
944 #define TEXTURE_2D_MULTISAMPLE_ARRAY_BIT (1 << TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX)
945 #define TEXTURE_CUBE_ARRAY_BIT (1 << TEXTURE_CUBE_ARRAY_INDEX)
946 #define TEXTURE_BUFFER_BIT (1 << TEXTURE_BUFFER_INDEX)
947 #define TEXTURE_2D_ARRAY_BIT (1 << TEXTURE_2D_ARRAY_INDEX)
948 #define TEXTURE_1D_ARRAY_BIT (1 << TEXTURE_1D_ARRAY_INDEX)
949 #define TEXTURE_EXTERNAL_BIT (1 << TEXTURE_EXTERNAL_INDEX)
950 #define TEXTURE_CUBE_BIT (1 << TEXTURE_CUBE_INDEX)
951 #define TEXTURE_3D_BIT (1 << TEXTURE_3D_INDEX)
952 #define TEXTURE_RECT_BIT (1 << TEXTURE_RECT_INDEX)
953 #define TEXTURE_2D_BIT (1 << TEXTURE_2D_INDEX)
954 #define TEXTURE_1D_BIT (1 << TEXTURE_1D_INDEX)
959 * Texture image state. Drivers will typically create a subclass of this
960 * with extra fields for memory buffers, etc.
962 struct gl_texture_image
964 GLint InternalFormat
; /**< Internal format as given by the user */
965 GLenum _BaseFormat
; /**< Either GL_RGB, GL_RGBA, GL_ALPHA,
966 * GL_LUMINANCE, GL_LUMINANCE_ALPHA,
967 * GL_INTENSITY, GL_DEPTH_COMPONENT or
968 * GL_DEPTH_STENCIL_EXT only. Used for
969 * choosing TexEnv arithmetic.
971 mesa_format TexFormat
; /**< The actual texture memory format */
973 GLuint Border
; /**< 0 or 1 */
974 GLuint Width
; /**< = 2^WidthLog2 + 2*Border */
975 GLuint Height
; /**< = 2^HeightLog2 + 2*Border */
976 GLuint Depth
; /**< = 2^DepthLog2 + 2*Border */
977 GLuint Width2
; /**< = Width - 2*Border */
978 GLuint Height2
; /**< = Height - 2*Border */
979 GLuint Depth2
; /**< = Depth - 2*Border */
980 GLuint WidthLog2
; /**< = log2(Width2) */
981 GLuint HeightLog2
; /**< = log2(Height2) */
982 GLuint DepthLog2
; /**< = log2(Depth2) */
983 GLuint MaxNumLevels
; /**< = maximum possible number of mipmap
984 levels, computed from the dimensions */
986 struct gl_texture_object
*TexObject
; /**< Pointer back to parent object */
987 GLuint Level
; /**< Which mipmap level am I? */
988 /** Cube map face: index into gl_texture_object::Image[] array */
991 /** GL_ARB_texture_multisample */
992 GLuint NumSamples
; /**< Sample count, or 0 for non-multisample */
993 GLboolean FixedSampleLocations
; /**< Same sample locations for all pixels? */
998 * Indexes for cube map faces.
1013 * Sampler object state. These objects are new with GL_ARB_sampler_objects
1014 * and OpenGL 3.3. Legacy texture objects also contain a sampler object.
1016 struct gl_sampler_object
1021 GLchar
*Label
; /**< GL_KHR_debug */
1023 GLenum WrapS
; /**< S-axis texture image wrap mode */
1024 GLenum WrapT
; /**< T-axis texture image wrap mode */
1025 GLenum WrapR
; /**< R-axis texture image wrap mode */
1026 GLenum MinFilter
; /**< minification filter */
1027 GLenum MagFilter
; /**< magnification filter */
1028 union gl_color_union BorderColor
; /**< Interpreted according to texture format */
1029 GLfloat MinLod
; /**< min lambda, OpenGL 1.2 */
1030 GLfloat MaxLod
; /**< max lambda, OpenGL 1.2 */
1031 GLfloat LodBias
; /**< OpenGL 1.4 */
1032 GLfloat MaxAnisotropy
; /**< GL_EXT_texture_filter_anisotropic */
1033 GLenum CompareMode
; /**< GL_ARB_shadow */
1034 GLenum CompareFunc
; /**< GL_ARB_shadow */
1035 GLenum sRGBDecode
; /**< GL_DECODE_EXT or GL_SKIP_DECODE_EXT */
1036 GLboolean CubeMapSeamless
; /**< GL_AMD_seamless_cubemap_per_texture */
1038 /** GL_ARB_bindless_texture */
1039 bool HandleAllocated
;
1040 struct util_dynarray Handles
;
1045 * Texture object state. Contains the array of mipmap images, border color,
1046 * wrap modes, filter modes, and shadow/texcompare state.
1048 struct gl_texture_object
1050 simple_mtx_t Mutex
; /**< for thread safety */
1051 GLint RefCount
; /**< reference count */
1052 GLuint Name
; /**< the user-visible texture object ID */
1053 GLchar
*Label
; /**< GL_KHR_debug */
1054 GLenum Target
; /**< GL_TEXTURE_1D, GL_TEXTURE_2D, etc. */
1055 gl_texture_index TargetIndex
; /**< The gl_texture_unit::CurrentTex index.
1056 Only valid when Target is valid. */
1058 struct gl_sampler_object Sampler
;
1060 GLenum DepthMode
; /**< GL_ARB_depth_texture */
1062 GLfloat Priority
; /**< in [0,1] */
1063 GLint BaseLevel
; /**< min mipmap level, OpenGL 1.2 */
1064 GLint MaxLevel
; /**< max mipmap level, OpenGL 1.2 */
1065 GLint ImmutableLevels
; /**< ES 3.0 / ARB_texture_view */
1066 GLint _MaxLevel
; /**< actual max mipmap level (q in the spec) */
1067 GLfloat _MaxLambda
; /**< = _MaxLevel - BaseLevel (q - p in spec) */
1068 GLint CropRect
[4]; /**< GL_OES_draw_texture */
1069 GLenum Swizzle
[4]; /**< GL_EXT_texture_swizzle */
1070 GLuint _Swizzle
; /**< same as Swizzle, but SWIZZLE_* format */
1071 GLboolean GenerateMipmap
; /**< GL_SGIS_generate_mipmap */
1072 GLboolean _BaseComplete
; /**< Is the base texture level valid? */
1073 GLboolean _MipmapComplete
; /**< Is the whole mipmap valid? */
1074 GLboolean _IsIntegerFormat
; /**< Does the texture store integer values? */
1075 GLboolean _RenderToTexture
; /**< Any rendering to this texture? */
1076 GLboolean Purgeable
; /**< Is the buffer purgeable under memory
1078 GLboolean Immutable
; /**< GL_ARB_texture_storage */
1079 GLboolean _IsFloat
; /**< GL_OES_float_texture */
1080 GLboolean _IsHalfFloat
; /**< GL_OES_half_float_texture */
1081 bool StencilSampling
; /**< Should we sample stencil instead of depth? */
1082 bool HandleAllocated
; /**< GL_ARB_bindless_texture */
1084 GLuint MinLevel
; /**< GL_ARB_texture_view */
1085 GLuint MinLayer
; /**< GL_ARB_texture_view */
1086 GLuint NumLevels
; /**< GL_ARB_texture_view */
1087 GLuint NumLayers
; /**< GL_ARB_texture_view */
1089 /** GL_EXT_memory_object */
1090 GLenum TextureTiling
;
1092 /** Actual texture images, indexed by [cube face] and [mipmap level] */
1093 struct gl_texture_image
*Image
[MAX_FACES
][MAX_TEXTURE_LEVELS
];
1095 /** GL_ARB_texture_buffer_object */
1096 struct gl_buffer_object
*BufferObject
;
1097 GLenum BufferObjectFormat
;
1098 /** Equivalent Mesa format for BufferObjectFormat. */
1099 mesa_format _BufferObjectFormat
;
1100 /** GL_ARB_texture_buffer_range */
1101 GLintptr BufferOffset
;
1102 GLsizeiptr BufferSize
; /**< if this is -1, use BufferObject->Size instead */
1104 /** GL_OES_EGL_image_external */
1105 GLint RequiredTextureImageUnits
;
1107 /** GL_ARB_shader_image_load_store */
1108 GLenum ImageFormatCompatibilityType
;
1110 /** GL_ARB_bindless_texture */
1111 struct util_dynarray SamplerHandles
;
1112 struct util_dynarray ImageHandles
;
1116 /** Up to four combiner sources are possible with GL_NV_texture_env_combine4 */
1117 #define MAX_COMBINER_TERMS 4
1121 * Texture combine environment state.
1123 struct gl_tex_env_combine_state
1125 GLenum ModeRGB
; /**< GL_REPLACE, GL_DECAL, GL_ADD, etc. */
1126 GLenum ModeA
; /**< GL_REPLACE, GL_DECAL, GL_ADD, etc. */
1127 /** Source terms: GL_PRIMARY_COLOR, GL_TEXTURE, etc */
1128 GLenum SourceRGB
[MAX_COMBINER_TERMS
];
1129 GLenum SourceA
[MAX_COMBINER_TERMS
];
1130 /** Source operands: GL_SRC_COLOR, GL_ONE_MINUS_SRC_COLOR, etc */
1131 GLenum OperandRGB
[MAX_COMBINER_TERMS
];
1132 GLenum OperandA
[MAX_COMBINER_TERMS
];
1133 GLuint ScaleShiftRGB
; /**< 0, 1 or 2 */
1134 GLuint ScaleShiftA
; /**< 0, 1 or 2 */
1135 GLuint _NumArgsRGB
; /**< Number of inputs used for the RGB combiner */
1136 GLuint _NumArgsA
; /**< Number of inputs used for the A combiner */
1140 /** Compressed TexEnv effective Combine mode */
1141 enum gl_tex_env_mode
1143 TEXENV_MODE_REPLACE
, /* r = a0 */
1144 TEXENV_MODE_MODULATE
, /* r = a0 * a1 */
1145 TEXENV_MODE_ADD
, /* r = a0 + a1 */
1146 TEXENV_MODE_ADD_SIGNED
, /* r = a0 + a1 - 0.5 */
1147 TEXENV_MODE_INTERPOLATE
, /* r = a0 * a2 + a1 * (1 - a2) */
1148 TEXENV_MODE_SUBTRACT
, /* r = a0 - a1 */
1149 TEXENV_MODE_DOT3_RGB
, /* r = a0 . a1 */
1150 TEXENV_MODE_DOT3_RGB_EXT
, /* r = a0 . a1 */
1151 TEXENV_MODE_DOT3_RGBA
, /* r = a0 . a1 */
1152 TEXENV_MODE_DOT3_RGBA_EXT
, /* r = a0 . a1 */
1153 TEXENV_MODE_MODULATE_ADD_ATI
, /* r = a0 * a2 + a1 */
1154 TEXENV_MODE_MODULATE_SIGNED_ADD_ATI
, /* r = a0 * a2 + a1 - 0.5 */
1155 TEXENV_MODE_MODULATE_SUBTRACT_ATI
, /* r = a0 * a2 - a1 */
1156 TEXENV_MODE_ADD_PRODUCTS_NV
, /* r = a0 * a1 + a2 * a3 */
1157 TEXENV_MODE_ADD_PRODUCTS_SIGNED_NV
, /* r = a0 * a1 + a2 * a3 - 0.5 */
1161 /** Compressed TexEnv Combine source */
1162 enum gl_tex_env_source
1164 TEXENV_SRC_TEXTURE0
,
1165 TEXENV_SRC_TEXTURE1
,
1166 TEXENV_SRC_TEXTURE2
,
1167 TEXENV_SRC_TEXTURE3
,
1168 TEXENV_SRC_TEXTURE4
,
1169 TEXENV_SRC_TEXTURE5
,
1170 TEXENV_SRC_TEXTURE6
,
1171 TEXENV_SRC_TEXTURE7
,
1173 TEXENV_SRC_PREVIOUS
,
1174 TEXENV_SRC_PRIMARY_COLOR
,
1175 TEXENV_SRC_CONSTANT
,
1181 /** Compressed TexEnv Combine operand */
1182 enum gl_tex_env_operand
1185 TEXENV_OPR_ONE_MINUS_COLOR
,
1187 TEXENV_OPR_ONE_MINUS_ALPHA
,
1191 /** Compressed TexEnv Combine argument */
1192 struct gl_tex_env_argument
1195 __extension__
uint8_t Source
:4; /**< TEXENV_SRC_x */
1196 __extension__
uint8_t Operand
:2; /**< TEXENV_OPR_x */
1198 uint8_t Source
; /**< SRC_x */
1199 uint8_t Operand
; /**< OPR_x */
1205 * Compressed TexEnv Combine state.
1207 struct gl_tex_env_combine_packed
1209 uint32_t ModeRGB
:4; /**< Effective mode for RGB as 4 bits */
1210 uint32_t ModeA
:4; /**< Effective mode for RGB as 4 bits */
1211 uint32_t ScaleShiftRGB
:2; /**< 0, 1 or 2 */
1212 uint32_t ScaleShiftA
:2; /**< 0, 1 or 2 */
1213 uint32_t NumArgsRGB
:3; /**< Number of inputs used for the RGB combiner */
1214 uint32_t NumArgsA
:3; /**< Number of inputs used for the A combiner */
1215 /** Source arguments in a packed manner */
1216 struct gl_tex_env_argument ArgsRGB
[MAX_COMBINER_TERMS
];
1217 struct gl_tex_env_argument ArgsA
[MAX_COMBINER_TERMS
];
1222 * TexGenEnabled flags.
1229 #define STR_BITS (S_BIT | T_BIT | R_BIT)
1234 * Bit flag versions of the corresponding GL_ constants.
1237 #define TEXGEN_SPHERE_MAP 0x1
1238 #define TEXGEN_OBJ_LINEAR 0x2
1239 #define TEXGEN_EYE_LINEAR 0x4
1240 #define TEXGEN_REFLECTION_MAP_NV 0x8
1241 #define TEXGEN_NORMAL_MAP_NV 0x10
1243 #define TEXGEN_NEED_NORMALS (TEXGEN_SPHERE_MAP | \
1244 TEXGEN_REFLECTION_MAP_NV | \
1245 TEXGEN_NORMAL_MAP_NV)
1246 #define TEXGEN_NEED_EYE_COORD (TEXGEN_SPHERE_MAP | \
1247 TEXGEN_REFLECTION_MAP_NV | \
1248 TEXGEN_NORMAL_MAP_NV | \
1254 /** Tex-gen enabled for texture unit? */
1255 #define ENABLE_TEXGEN(unit) (1 << (unit))
1257 /** Non-identity texture matrix for texture unit? */
1258 #define ENABLE_TEXMAT(unit) (1 << (unit))
1262 * Texture coord generation state.
1266 GLenum Mode
; /**< GL_EYE_LINEAR, GL_SPHERE_MAP, etc */
1267 GLbitfield _ModeBit
; /**< TEXGEN_x bit corresponding to Mode */
1268 GLfloat ObjectPlane
[4];
1269 GLfloat EyePlane
[4];
1274 * Texture unit state. Contains enable flags, texture environment/function/
1275 * combiners, texgen state, and pointers to current texture objects.
1277 struct gl_texture_unit
1279 GLbitfield Enabled
; /**< bitmask of TEXTURE_*_BIT flags */
1281 GLenum EnvMode
; /**< GL_MODULATE, GL_DECAL, GL_BLEND, etc. */
1282 GLclampf EnvColor
[4];
1283 GLfloat EnvColorUnclamped
[4];
1285 struct gl_texgen GenS
;
1286 struct gl_texgen GenT
;
1287 struct gl_texgen GenR
;
1288 struct gl_texgen GenQ
;
1289 GLbitfield TexGenEnabled
; /**< Bitwise-OR of [STRQ]_BIT values */
1290 GLbitfield _GenFlags
; /**< Bitwise-OR of Gen[STRQ]._ModeBit */
1292 GLfloat LodBias
; /**< for biasing mipmap levels */
1294 /** Texture targets that have a non-default texture bound */
1295 GLbitfield _BoundTextures
;
1297 /** Current sampler object (GL_ARB_sampler_objects) */
1298 struct gl_sampler_object
*Sampler
;
1301 * \name GL_EXT_texture_env_combine
1303 struct gl_tex_env_combine_state Combine
;
1306 * Derived state based on \c EnvMode and the \c BaseFormat of the
1307 * currently enabled texture.
1309 struct gl_tex_env_combine_state _EnvMode
;
1312 * Currently enabled combiner state. This will point to either
1313 * \c Combine or \c _EnvMode.
1315 struct gl_tex_env_combine_state
*_CurrentCombine
;
1317 /** Current texture object pointers */
1318 struct gl_texture_object
*CurrentTex
[NUM_TEXTURE_TARGETS
];
1320 /** Points to highest priority, complete and enabled texture object */
1321 struct gl_texture_object
*_Current
;
1323 /** Current compressed TexEnv & Combine state */
1324 struct gl_tex_env_combine_packed _CurrentCombinePacked
;
1329 * Texture attribute group (GL_TEXTURE_BIT).
1331 struct gl_texture_attrib
1333 GLuint CurrentUnit
; /**< GL_ACTIVE_TEXTURE */
1335 /** GL_ARB_seamless_cubemap */
1336 GLboolean CubeMapSeamless
;
1338 struct gl_texture_object
*ProxyTex
[NUM_TEXTURE_TARGETS
];
1340 /** GL_ARB_texture_buffer_object */
1341 struct gl_buffer_object
*BufferObject
;
1343 /** Texture coord units/sets used for fragment texturing */
1344 GLbitfield _EnabledCoordUnits
;
1346 /** Texture coord units that have texgen enabled */
1347 GLbitfield _TexGenEnabled
;
1349 /** Texture coord units that have non-identity matrices */
1350 GLbitfield _TexMatEnabled
;
1352 /** Bitwise-OR of all Texture.Unit[i]._GenFlags */
1353 GLbitfield _GenFlags
;
1355 /** Largest index of a texture unit with _Current != NULL. */
1356 GLint _MaxEnabledTexImageUnit
;
1358 /** Largest index + 1 of texture units that have had any CurrentTex set. */
1359 GLint NumCurrentTexUsed
;
1361 struct gl_texture_unit Unit
[MAX_COMBINED_TEXTURE_IMAGE_UNITS
];
1366 * Data structure representing a single clip plane (e.g. one of the elements
1367 * of the ctx->Transform.EyeUserPlane or ctx->Transform._ClipUserPlane array).
1369 typedef GLfloat gl_clip_plane
[4];
1373 * Transformation attribute group (GL_TRANSFORM_BIT).
1375 struct gl_transform_attrib
1377 GLenum MatrixMode
; /**< Matrix mode */
1378 gl_clip_plane EyeUserPlane
[MAX_CLIP_PLANES
]; /**< User clip planes */
1379 gl_clip_plane _ClipUserPlane
[MAX_CLIP_PLANES
]; /**< derived */
1380 GLbitfield ClipPlanesEnabled
; /**< on/off bitmask */
1381 GLboolean Normalize
; /**< Normalize all normals? */
1382 GLboolean RescaleNormals
; /**< GL_EXT_rescale_normal */
1383 GLboolean RasterPositionUnclipped
; /**< GL_IBM_rasterpos_clip */
1384 GLboolean DepthClamp
; /**< GL_ARB_depth_clamp */
1385 /** GL_ARB_clip_control */
1386 GLenum ClipOrigin
; /**< GL_LOWER_LEFT or GL_UPPER_LEFT */
1387 GLenum ClipDepthMode
; /**< GL_NEGATIVE_ONE_TO_ONE or GL_ZERO_TO_ONE */
1392 * Viewport attribute group (GL_VIEWPORT_BIT).
1394 struct gl_viewport_attrib
1396 GLfloat X
, Y
; /**< position */
1397 GLfloat Width
, Height
; /**< size */
1398 GLdouble Near
, Far
; /**< Depth buffer range */
1407 } gl_map_buffer_index
;
1411 * Fields describing a mapped buffer range.
1413 struct gl_buffer_mapping
1415 GLbitfield AccessFlags
; /**< Mask of GL_MAP_x_BIT flags */
1416 GLvoid
*Pointer
; /**< User-space address of mapping */
1417 GLintptr Offset
; /**< Mapped offset */
1418 GLsizeiptr Length
; /**< Mapped length */
1423 * Usages we've seen for a buffer object.
1427 USAGE_UNIFORM_BUFFER
= 0x1,
1428 USAGE_TEXTURE_BUFFER
= 0x2,
1429 USAGE_ATOMIC_COUNTER_BUFFER
= 0x4,
1430 USAGE_SHADER_STORAGE_BUFFER
= 0x8,
1431 USAGE_TRANSFORM_FEEDBACK_BUFFER
= 0x10,
1432 USAGE_PIXEL_PACK_BUFFER
= 0x20,
1433 USAGE_DISABLE_MINMAX_CACHE
= 0x40,
1438 * GL_ARB_vertex/pixel_buffer_object buffer object
1440 struct gl_buffer_object
1445 GLchar
*Label
; /**< GL_KHR_debug */
1446 GLenum Usage
; /**< GL_STREAM_DRAW_ARB, GL_STREAM_READ_ARB, etc. */
1447 GLbitfield StorageFlags
; /**< GL_MAP_PERSISTENT_BIT, etc. */
1448 GLsizeiptrARB Size
; /**< Size of buffer storage in bytes */
1449 GLubyte
*Data
; /**< Location of storage either in RAM or VRAM. */
1450 GLboolean DeletePending
; /**< true if buffer object is removed from the hash */
1451 GLboolean Written
; /**< Ever written to? (for debugging) */
1452 GLboolean Purgeable
; /**< Is the buffer purgeable under memory pressure? */
1453 GLboolean Immutable
; /**< GL_ARB_buffer_storage */
1454 gl_buffer_usage UsageHistory
; /**< How has this buffer been used so far? */
1456 /** Counters used for buffer usage warnings */
1457 GLuint NumSubDataCalls
;
1458 GLuint NumMapBufferWriteCalls
;
1460 struct gl_buffer_mapping Mappings
[MAP_COUNT
];
1462 /** Memoization of min/max index computations for static index buffers */
1463 struct hash_table
*MinMaxCache
;
1464 unsigned MinMaxCacheHitIndices
;
1465 unsigned MinMaxCacheMissIndices
;
1466 bool MinMaxCacheDirty
;
1468 bool HandleAllocated
; /**< GL_ARB_bindless_texture */
1473 * Client pixel packing/unpacking attributes
1475 struct gl_pixelstore_attrib
1483 GLboolean SwapBytes
;
1485 GLboolean Invert
; /**< GL_MESA_pack_invert */
1486 GLint CompressedBlockWidth
; /**< GL_ARB_compressed_texture_pixel_storage */
1487 GLint CompressedBlockHeight
;
1488 GLint CompressedBlockDepth
;
1489 GLint CompressedBlockSize
;
1490 struct gl_buffer_object
*BufferObj
; /**< GL_ARB_pixel_buffer_object */
1495 * Vertex array information which is derived from gl_array_attributes
1496 * and gl_vertex_buffer_binding information. Used by the VBO module and
1499 struct gl_vertex_array
1501 GLint Size
; /**< components per element (1,2,3,4) */
1502 GLenum Type
; /**< datatype: GL_FLOAT, GL_INT, etc */
1503 GLenum Format
; /**< default: GL_RGBA, but may be GL_BGRA */
1504 GLsizei StrideB
; /**< actual stride in bytes */
1505 GLuint _ElementSize
; /**< size of each element in bytes */
1506 const GLubyte
*Ptr
; /**< Points to array data */
1507 GLboolean Normalized
; /**< GL_ARB_vertex_program */
1508 GLboolean Integer
; /**< Integer-valued? */
1509 GLboolean Doubles
; /**< double precision values are not converted to floats */
1510 GLuint InstanceDivisor
; /**< GL_ARB_instanced_arrays */
1512 struct gl_buffer_object
*BufferObj
;/**< GL_ARB_vertex_buffer_object */
1517 * Attributes to describe a vertex array.
1519 * Contains the size, type, format and normalization flag,
1520 * along with the index of a vertex buffer binding point.
1522 * Note that the Stride field corresponds to VERTEX_ATTRIB_ARRAY_STRIDE
1523 * and is only present for backwards compatibility reasons.
1524 * Rendering always uses VERTEX_BINDING_STRIDE.
1525 * The gl*Pointer() functions will set VERTEX_ATTRIB_ARRAY_STRIDE
1526 * and VERTEX_BINDING_STRIDE to the same value, while
1527 * glBindVertexBuffer() will only set VERTEX_BINDING_STRIDE.
1529 struct gl_array_attributes
1531 GLint Size
; /**< Components per element (1,2,3,4) */
1532 GLenum Type
; /**< Datatype: GL_FLOAT, GL_INT, etc */
1533 GLenum Format
; /**< Default: GL_RGBA, but may be GL_BGRA */
1534 GLsizei Stride
; /**< Stride as specified with gl*Pointer() */
1535 const GLubyte
*Ptr
; /**< Points to client array data. Not used when a VBO is bound */
1536 GLintptr RelativeOffset
; /**< Offset of the first element relative to the binding offset */
1537 GLboolean Enabled
; /**< Whether the array is enabled */
1538 GLboolean Normalized
; /**< Fixed-point values are normalized when converted to floats */
1539 GLboolean Integer
; /**< Fixed-point values are not converted to floats */
1540 GLboolean Doubles
; /**< double precision values are not converted to floats */
1541 GLuint _ElementSize
; /**< Size of each element in bytes */
1542 GLuint BufferBindingIndex
; /**< Vertex buffer binding */
1547 * This describes the buffer object used for a vertex array (or
1548 * multiple vertex arrays). If BufferObj points to the default/null
1549 * buffer object, then the vertex array lives in user memory and not a VBO.
1551 struct gl_vertex_buffer_binding
1553 GLintptr Offset
; /**< User-specified offset */
1554 GLsizei Stride
; /**< User-specified stride */
1555 GLuint InstanceDivisor
; /**< GL_ARB_instanced_arrays */
1556 struct gl_buffer_object
*BufferObj
; /**< GL_ARB_vertex_buffer_object */
1557 GLbitfield _BoundArrays
; /**< Arrays bound to this binding point */
1562 * A representation of "Vertex Array Objects" (VAOs) from OpenGL 3.1+ /
1563 * the GL_ARB_vertex_array_object extension.
1565 struct gl_vertex_array_object
1567 /** Name of the VAO as received from glGenVertexArray. */
1572 GLchar
*Label
; /**< GL_KHR_debug */
1575 * Has this array object been bound?
1577 GLboolean EverBound
;
1580 * Derived vertex attribute arrays
1582 * This is a legacy data structure created from gl_array_attributes and
1583 * gl_vertex_buffer_binding, for compatibility with existing driver code.
1585 struct gl_vertex_array _VertexAttrib
[VERT_ATTRIB_MAX
];
1587 /** Vertex attribute arrays */
1588 struct gl_array_attributes VertexAttrib
[VERT_ATTRIB_MAX
];
1590 /** Vertex buffer bindings */
1591 struct gl_vertex_buffer_binding BufferBinding
[VERT_ATTRIB_MAX
];
1593 /** Mask indicating which vertex arrays have vertex buffer associated. */
1594 GLbitfield VertexAttribBufferMask
;
1596 /** Mask of VERT_BIT_* values indicating which arrays are enabled */
1597 GLbitfield _Enabled
;
1599 /** Mask of VERT_BIT_* values indicating changed/dirty arrays */
1600 GLbitfield NewArrays
;
1602 /** The index buffer (also known as the element array buffer in OpenGL). */
1603 struct gl_buffer_object
*IndexBufferObj
;
1608 * Used to signal when transitioning from one kind of drawing method
1613 DRAW_NONE
, /**< Initial value only */
1621 * Enum for the OpenGL APIs we know about and may support.
1623 * NOTE: This must match the api_enum table in
1624 * src/mesa/main/get_hash_generator.py
1628 API_OPENGL_COMPAT
, /* legacy / compatibility contexts */
1632 API_OPENGL_LAST
= API_OPENGL_CORE
1637 * Vertex array state
1639 struct gl_array_attrib
1641 /** Currently bound array object. */
1642 struct gl_vertex_array_object
*VAO
;
1644 /** The default vertex array object */
1645 struct gl_vertex_array_object
*DefaultVAO
;
1647 /** The last VAO accessed by a DSA function */
1648 struct gl_vertex_array_object
*LastLookedUpVAO
;
1650 /** Array objects (GL_ARB_vertex_array_object) */
1651 struct _mesa_HashTable
*Objects
;
1653 GLint ActiveTexture
; /**< Client Active Texture */
1654 GLuint LockFirst
; /**< GL_EXT_compiled_vertex_array */
1655 GLuint LockCount
; /**< GL_EXT_compiled_vertex_array */
1658 * \name Primitive restart controls
1660 * Primitive restart is enabled if either \c PrimitiveRestart or
1661 * \c PrimitiveRestartFixedIndex is set.
1664 GLboolean PrimitiveRestart
;
1665 GLboolean PrimitiveRestartFixedIndex
;
1666 GLboolean _PrimitiveRestart
;
1667 GLuint RestartIndex
;
1670 /** One of the DRAW_xxx flags, not consumed by drivers */
1671 gl_draw_method DrawMethod
;
1673 /* GL_ARB_vertex_buffer_object */
1674 struct gl_buffer_object
*ArrayBufferObj
;
1677 * Vertex arrays as consumed by a driver.
1678 * The array pointer is set up only by the VBO module.
1680 const struct gl_vertex_array
**_DrawArrays
; /**< 0..VERT_ATTRIB_MAX-1 */
1682 /** Legal array datatypes and the API for which they have been computed */
1683 GLbitfield LegalTypesMask
;
1684 gl_api LegalTypesMaskAPI
;
1689 * Feedback buffer state
1694 GLbitfield _Mask
; /**< FB_* bits */
1702 * Selection buffer state
1706 GLuint
*Buffer
; /**< selection buffer */
1707 GLuint BufferSize
; /**< size of the selection buffer */
1708 GLuint BufferCount
; /**< number of values in the selection buffer */
1709 GLuint Hits
; /**< number of records in the selection buffer */
1710 GLuint NameStackDepth
; /**< name stack depth */
1711 GLuint NameStack
[MAX_NAME_STACK_DEPTH
]; /**< name stack */
1712 GLboolean HitFlag
; /**< hit flag */
1713 GLfloat HitMinZ
; /**< minimum hit depth */
1714 GLfloat HitMaxZ
; /**< maximum hit depth */
1719 * 1-D Evaluator control points
1723 GLuint Order
; /**< Number of control points */
1724 GLfloat u1
, u2
, du
; /**< u1, u2, 1.0/(u2-u1) */
1725 GLfloat
*Points
; /**< Points to contiguous control points */
1730 * 2-D Evaluator control points
1734 GLuint Uorder
; /**< Number of control points in U dimension */
1735 GLuint Vorder
; /**< Number of control points in V dimension */
1738 GLfloat
*Points
; /**< Points to contiguous control points */
1743 * All evaluator control point state
1745 struct gl_evaluators
1751 struct gl_1d_map Map1Vertex3
;
1752 struct gl_1d_map Map1Vertex4
;
1753 struct gl_1d_map Map1Index
;
1754 struct gl_1d_map Map1Color4
;
1755 struct gl_1d_map Map1Normal
;
1756 struct gl_1d_map Map1Texture1
;
1757 struct gl_1d_map Map1Texture2
;
1758 struct gl_1d_map Map1Texture3
;
1759 struct gl_1d_map Map1Texture4
;
1766 struct gl_2d_map Map2Vertex3
;
1767 struct gl_2d_map Map2Vertex4
;
1768 struct gl_2d_map Map2Index
;
1769 struct gl_2d_map Map2Color4
;
1770 struct gl_2d_map Map2Normal
;
1771 struct gl_2d_map Map2Texture1
;
1772 struct gl_2d_map Map2Texture2
;
1773 struct gl_2d_map Map2Texture3
;
1774 struct gl_2d_map Map2Texture4
;
1779 struct gl_transform_feedback_varying_info
1790 * Per-output info vertex shaders for transform feedback.
1792 struct gl_transform_feedback_output
1794 uint32_t OutputRegister
;
1795 uint32_t OutputBuffer
;
1796 uint32_t NumComponents
;
1799 /** offset (in DWORDs) of this output within the interleaved structure */
1803 * Offset into the output register of the data to output. For example,
1804 * if NumComponents is 2 and ComponentOffset is 1, then the data to
1805 * offset is in the y and z components of the output register.
1807 uint32_t ComponentOffset
;
1811 struct gl_transform_feedback_buffer
1815 uint32_t NumVaryings
;
1818 * Total number of components stored in each buffer. This may be used by
1819 * hardware back-ends to determine the correct stride when interleaving
1820 * multiple transform feedback outputs in the same buffer.
1825 * Which transform feedback stream this buffer binding is associated with.
1831 /** Post-link transform feedback info. */
1832 struct gl_transform_feedback_info
1834 /* Was xfb enabled via the api or in shader layout qualifiers */
1837 unsigned NumOutputs
;
1839 /* Bitmask of active buffer indices. */
1840 unsigned ActiveBuffers
;
1842 struct gl_transform_feedback_output
*Outputs
;
1844 /** Transform feedback varyings used for the linking of this shader program.
1846 * Use for glGetTransformFeedbackVarying().
1848 struct gl_transform_feedback_varying_info
*Varyings
;
1851 struct gl_transform_feedback_buffer Buffers
[MAX_FEEDBACK_BUFFERS
];
1856 * Transform feedback object state
1858 struct gl_transform_feedback_object
1860 GLuint Name
; /**< AKA the object ID */
1862 GLchar
*Label
; /**< GL_KHR_debug */
1863 GLboolean Active
; /**< Is transform feedback enabled? */
1864 GLboolean Paused
; /**< Is transform feedback paused? */
1865 GLboolean EndedAnytime
; /**< Has EndTransformFeedback been called
1867 GLboolean EverBound
; /**< Has this object been bound? */
1870 * GLES: if Active is true, remaining number of primitives which can be
1871 * rendered without overflow. This is necessary to track because GLES
1872 * requires us to generate INVALID_OPERATION if a call to glDrawArrays or
1873 * glDrawArraysInstanced would overflow transform feedback buffers.
1874 * Undefined if Active is false.
1876 * Not tracked for desktop GL since it's unnecessary.
1878 unsigned GlesRemainingPrims
;
1881 * The program active when BeginTransformFeedback() was called.
1882 * When active and unpaused, this equals ctx->Shader.CurrentProgram[stage],
1883 * where stage is the pipeline stage that is the source of data for
1884 * transform feedback.
1886 struct gl_program
*program
;
1888 /** The feedback buffers */
1889 GLuint BufferNames
[MAX_FEEDBACK_BUFFERS
];
1890 struct gl_buffer_object
*Buffers
[MAX_FEEDBACK_BUFFERS
];
1892 /** Start of feedback data in dest buffer */
1893 GLintptr Offset
[MAX_FEEDBACK_BUFFERS
];
1896 * Max data to put into dest buffer (in bytes). Computed based on
1897 * RequestedSize and the actual size of the buffer.
1899 GLsizeiptr Size
[MAX_FEEDBACK_BUFFERS
];
1902 * Size that was specified when the buffer was bound. If the buffer was
1903 * bound with glBindBufferBase() or glBindBufferOffsetEXT(), this value is
1906 GLsizeiptr RequestedSize
[MAX_FEEDBACK_BUFFERS
];
1911 * Context state for transform feedback.
1913 struct gl_transform_feedback_state
1915 GLenum Mode
; /**< GL_POINTS, GL_LINES or GL_TRIANGLES */
1917 /** The general binding point (GL_TRANSFORM_FEEDBACK_BUFFER) */
1918 struct gl_buffer_object
*CurrentBuffer
;
1920 /** The table of all transform feedback objects */
1921 struct _mesa_HashTable
*Objects
;
1923 /** The current xform-fb object (GL_TRANSFORM_FEEDBACK_BINDING) */
1924 struct gl_transform_feedback_object
*CurrentObject
;
1926 /** The default xform-fb object (Name==0) */
1927 struct gl_transform_feedback_object
*DefaultObject
;
1932 * A "performance monitor" as described in AMD_performance_monitor.
1934 struct gl_perf_monitor_object
1938 /** True if the monitor is currently active (Begin called but not End). */
1942 * True if the monitor has ended.
1944 * This is distinct from !Active because it may never have began.
1949 * A list of groups with currently active counters.
1951 * ActiveGroups[g] == n if there are n counters active from group 'g'.
1953 unsigned *ActiveGroups
;
1956 * An array of bitsets, subscripted by group ID, then indexed by counter ID.
1958 * Checking whether counter 'c' in group 'g' is active can be done via:
1960 * BITSET_TEST(ActiveCounters[g], c)
1962 GLuint
**ActiveCounters
;
1966 union gl_perf_monitor_counter_value
1974 struct gl_perf_monitor_counter
1976 /** Human readable name for the counter. */
1980 * Data type of the counter. Valid values are FLOAT, UNSIGNED_INT,
1981 * UNSIGNED_INT64_AMD, and PERCENTAGE_AMD.
1985 /** Minimum counter value. */
1986 union gl_perf_monitor_counter_value Minimum
;
1988 /** Maximum counter value. */
1989 union gl_perf_monitor_counter_value Maximum
;
1993 struct gl_perf_monitor_group
1995 /** Human readable name for the group. */
1999 * Maximum number of counters in this group which can be active at the
2002 GLuint MaxActiveCounters
;
2004 /** Array of counters within this group. */
2005 const struct gl_perf_monitor_counter
*Counters
;
2011 * A query object instance as described in INTEL_performance_query.
2013 * NB: We want to keep this and the corresponding backend structure
2014 * relatively lean considering that applications may expect to
2015 * allocate enough objects to be able to query around all draw calls
2018 struct gl_perf_query_object
2020 GLuint Id
; /**< hash table ID/name */
2021 unsigned Used
:1; /**< has been used for 1 or more queries */
2022 unsigned Active
:1; /**< inside Begin/EndPerfQuery */
2023 unsigned Ready
:1; /**< result is ready? */
2028 * Context state for AMD_performance_monitor.
2030 struct gl_perf_monitor_state
2032 /** Array of performance monitor groups (indexed by group ID) */
2033 const struct gl_perf_monitor_group
*Groups
;
2036 /** The table of all performance monitors. */
2037 struct _mesa_HashTable
*Monitors
;
2042 * Context state for INTEL_performance_query.
2044 struct gl_perf_query_state
2046 struct _mesa_HashTable
*Objects
; /**< The table of all performance query objects */
2051 * A bindless sampler object.
2053 struct gl_bindless_sampler
2055 /** Texture unit (set by glUniform1()). */
2058 /** Whether this bindless sampler is bound to a unit. */
2061 /** Texture Target (TEXTURE_1D/2D/3D/etc_INDEX). */
2062 gl_texture_index target
;
2064 /** Pointer to the base of the data. */
2070 * A bindless image object.
2072 struct gl_bindless_image
2074 /** Image unit (set by glUniform1()). */
2077 /** Whether this bindless image is bound to a unit. */
2080 /** Access qualifier (GL_READ_WRITE, GL_READ_ONLY, GL_WRITE_ONLY) */
2083 /** Pointer to the base of the data. */
2089 * Names of the various vertex/fragment program register files, etc.
2091 * NOTE: first four tokens must fit into 2 bits (see t_vb_arbprogram.c)
2092 * All values should fit in a 4-bit field.
2094 * NOTE: PROGRAM_STATE_VAR, PROGRAM_CONSTANT, and PROGRAM_UNIFORM can all be
2095 * considered to be "uniform" variables since they can only be set outside
2096 * glBegin/End. They're also all stored in the same Parameters array.
2100 PROGRAM_TEMPORARY
, /**< machine->Temporary[] */
2101 PROGRAM_ARRAY
, /**< Arrays & Matrixes */
2102 PROGRAM_INPUT
, /**< machine->Inputs[] */
2103 PROGRAM_OUTPUT
, /**< machine->Outputs[] */
2104 PROGRAM_STATE_VAR
, /**< gl_program->Parameters[] */
2105 PROGRAM_CONSTANT
, /**< gl_program->Parameters[] */
2106 PROGRAM_UNIFORM
, /**< gl_program->Parameters[] */
2107 PROGRAM_WRITE_ONLY
, /**< A dummy, write-only register */
2108 PROGRAM_ADDRESS
, /**< machine->AddressReg */
2109 PROGRAM_SAMPLER
, /**< for shader samplers, compile-time only */
2110 PROGRAM_SYSTEM_VALUE
,/**< InstanceId, PrimitiveID, etc. */
2111 PROGRAM_UNDEFINED
, /**< Invalid/TBD value */
2112 PROGRAM_IMMEDIATE
, /**< Immediate value, used by TGSI */
2113 PROGRAM_BUFFER
, /**< for shader buffers, compile-time only */
2114 PROGRAM_MEMORY
, /**< for shared, global and local memory */
2115 PROGRAM_IMAGE
, /**< for shader images, compile-time only */
2116 PROGRAM_HW_ATOMIC
, /**< for hw atomic counters, compile-time only */
2122 * Base class for any kind of program object
2126 /** FIXME: This must be first until we split shader_info from nir_shader */
2127 struct shader_info info
;
2131 GLubyte
*String
; /**< Null-terminated program text */
2133 GLenum Target
; /**< GL_VERTEX/FRAGMENT_PROGRAM_ARB, GL_GEOMETRY_PROGRAM_NV */
2134 GLenum Format
; /**< String encoding format */
2136 GLboolean _Used
; /**< Ever used for drawing? Used for debugging */
2138 struct nir_shader
*nir
;
2140 /* Saved and restored with metadata. Freed with ralloc. */
2141 void *driver_cache_blob
;
2142 size_t driver_cache_blob_size
;
2144 bool is_arb_asm
; /** Is this an ARB assembly-style program */
2146 /** Is this program written to on disk shader cache */
2147 bool program_written_to_cache
;
2149 GLbitfield64 SecondaryOutputsWritten
; /**< Subset of OutputsWritten outputs written with non-zero index. */
2150 GLbitfield TexturesUsed
[MAX_COMBINED_TEXTURE_IMAGE_UNITS
]; /**< TEXTURE_x_BIT bitmask */
2151 GLbitfield SamplersUsed
; /**< Bitfield of which samplers are used */
2152 GLbitfield ShadowSamplers
; /**< Texture units used for shadow sampling. */
2153 GLbitfield ExternalSamplersUsed
; /**< Texture units used for samplerExternalOES */
2155 /* Fragement shader only fields */
2156 GLboolean OriginUpperLeft
;
2157 GLboolean PixelCenterInteger
;
2159 /** Named parameters, constants, etc. from program text */
2160 struct gl_program_parameter_list
*Parameters
;
2162 /** Map from sampler unit to texture unit (set by glUniform1i()) */
2163 GLubyte SamplerUnits
[MAX_SAMPLERS
];
2165 /* FIXME: We should be able to make this struct a union. However some
2166 * drivers (i915/fragment_programs, swrast/prog_execute) mix the use of
2167 * these fields, we should fix this.
2170 /** Fields used by GLSL programs */
2172 /** Data shared by gl_program and gl_shader_program */
2173 struct gl_shader_program_data
*data
;
2175 struct gl_active_atomic_buffer
**AtomicBuffers
;
2177 /** Post-link transform feedback info. */
2178 struct gl_transform_feedback_info
*LinkedTransformFeedback
;
2181 * Number of types for subroutine uniforms.
2183 GLuint NumSubroutineUniformTypes
;
2186 * Subroutine uniform remap table
2187 * based on the program level uniform remap table.
2189 GLuint NumSubroutineUniforms
; /* non-sparse total */
2190 GLuint NumSubroutineUniformRemapTable
;
2191 struct gl_uniform_storage
**SubroutineUniformRemapTable
;
2194 * Num of subroutine functions for this stage and storage for them.
2196 GLuint NumSubroutineFunctions
;
2197 GLuint MaxSubroutineFunctionIndex
;
2198 struct gl_subroutine_function
*SubroutineFunctions
;
2201 * Map from image uniform index to image unit (set by glUniform1i())
2203 * An image uniform index is associated with each image uniform by
2204 * the linker. The image index associated with each uniform is
2205 * stored in the \c gl_uniform_storage::image field.
2207 GLubyte ImageUnits
[MAX_IMAGE_UNIFORMS
];
2210 * Access qualifier specified in the shader for each image uniform
2211 * index. Either \c GL_READ_ONLY, \c GL_WRITE_ONLY or \c
2214 * It may be different, though only more strict than the value of
2215 * \c gl_image_unit::Access for the corresponding image unit.
2217 GLenum ImageAccess
[MAX_IMAGE_UNIFORMS
];
2219 struct gl_uniform_block
**UniformBlocks
;
2220 struct gl_uniform_block
**ShaderStorageBlocks
;
2222 /** Which texture target is being sampled
2223 * (TEXTURE_1D/2D/3D/etc_INDEX)
2225 gl_texture_index SamplerTargets
[MAX_SAMPLERS
];
2228 * Number of samplers declared with the bindless_sampler layout
2229 * qualifier as specified by ARB_bindless_texture.
2231 GLuint NumBindlessSamplers
;
2232 GLboolean HasBoundBindlessSampler
;
2233 struct gl_bindless_sampler
*BindlessSamplers
;
2236 * Number of images declared with the bindless_image layout qualifier
2237 * as specified by ARB_bindless_texture.
2239 GLuint NumBindlessImages
;
2240 GLboolean HasBoundBindlessImage
;
2241 struct gl_bindless_image
*BindlessImages
;
2246 * A bitmask of gl_advanced_blend_mode values
2248 GLbitfield BlendSupport
;
2253 /** ARB assembly-style program fields */
2255 struct prog_instruction
*Instructions
;
2258 * Local parameters used by the program.
2260 * It's dynamically allocated because it is rarely used (just
2261 * assembly-style programs), and MAX_PROGRAM_LOCAL_PARAMS entries
2262 * once it's allocated.
2264 GLfloat (*LocalParams
)[4];
2266 /** Bitmask of which register files are read/written with indirect
2267 * addressing. Mask of (1 << PROGRAM_x) bits.
2269 GLbitfield IndirectRegisterFiles
;
2271 /** Logical counts */
2273 GLuint NumInstructions
;
2274 GLuint NumTemporaries
;
2275 GLuint NumParameters
;
2276 GLuint NumAttributes
;
2277 GLuint NumAddressRegs
;
2278 GLuint NumAluInstructions
;
2279 GLuint NumTexInstructions
;
2280 GLuint NumTexIndirections
;
2282 /** Native, actual h/w counts */
2284 GLuint NumNativeInstructions
;
2285 GLuint NumNativeTemporaries
;
2286 GLuint NumNativeParameters
;
2287 GLuint NumNativeAttributes
;
2288 GLuint NumNativeAddressRegs
;
2289 GLuint NumNativeAluInstructions
;
2290 GLuint NumNativeTexInstructions
;
2291 GLuint NumNativeTexIndirections
;
2294 /** Used by ARB assembly-style programs. Can only be true for vertex
2297 GLboolean IsPositionInvariant
;
2304 * State common to vertex and fragment programs.
2306 struct gl_program_state
2308 GLint ErrorPos
; /* GL_PROGRAM_ERROR_POSITION_ARB/NV */
2309 const char *ErrorString
; /* GL_PROGRAM_ERROR_STRING_ARB/NV */
2314 * Context state for vertex programs.
2316 struct gl_vertex_program_state
2318 GLboolean Enabled
; /**< User-set GL_VERTEX_PROGRAM_ARB/NV flag */
2319 GLboolean PointSizeEnabled
; /**< GL_VERTEX_PROGRAM_POINT_SIZE_ARB/NV */
2320 GLboolean TwoSideEnabled
; /**< GL_VERTEX_PROGRAM_TWO_SIDE_ARB/NV */
2321 /** Should fixed-function T&L be implemented with a vertex prog? */
2322 GLboolean _MaintainTnlProgram
;
2324 struct gl_program
*Current
; /**< User-bound vertex program */
2326 /** Currently enabled and valid vertex program (including internal
2327 * programs, user-defined vertex programs and GLSL vertex shaders).
2328 * This is the program we must use when rendering.
2330 struct gl_program
*_Current
;
2332 GLfloat Parameters
[MAX_PROGRAM_ENV_PARAMS
][4]; /**< Env params */
2334 /** Program to emulate fixed-function T&L (see above) */
2335 struct gl_program
*_TnlProgram
;
2337 /** Cache of fixed-function programs */
2338 struct gl_program_cache
*Cache
;
2340 GLboolean _Overriden
;
2344 * Context state for tessellation control programs.
2346 struct gl_tess_ctrl_program_state
2348 /** Currently bound and valid shader. */
2349 struct gl_program
*_Current
;
2351 GLint patch_vertices
;
2352 GLfloat patch_default_outer_level
[4];
2353 GLfloat patch_default_inner_level
[2];
2357 * Context state for tessellation evaluation programs.
2359 struct gl_tess_eval_program_state
2361 /** Currently bound and valid shader. */
2362 struct gl_program
*_Current
;
2366 * Context state for geometry programs.
2368 struct gl_geometry_program_state
2370 /** Currently enabled and valid program (including internal programs
2371 * and compiled shader programs).
2373 struct gl_program
*_Current
;
2377 * Context state for fragment programs.
2379 struct gl_fragment_program_state
2381 GLboolean Enabled
; /**< User-set fragment program enable flag */
2382 /** Should fixed-function texturing be implemented with a fragment prog? */
2383 GLboolean _MaintainTexEnvProgram
;
2385 struct gl_program
*Current
; /**< User-bound fragment program */
2387 /** Currently enabled and valid fragment program (including internal
2388 * programs, user-defined fragment programs and GLSL fragment shaders).
2389 * This is the program we must use when rendering.
2391 struct gl_program
*_Current
;
2393 GLfloat Parameters
[MAX_PROGRAM_ENV_PARAMS
][4]; /**< Env params */
2395 /** Program to emulate fixed-function texture env/combine (see above) */
2396 struct gl_program
*_TexEnvProgram
;
2398 /** Cache of fixed-function programs */
2399 struct gl_program_cache
*Cache
;
2404 * Context state for compute programs.
2406 struct gl_compute_program_state
2408 /** Currently enabled and valid program (including internal programs
2409 * and compiled shader programs).
2411 struct gl_program
*_Current
;
2416 * ATI_fragment_shader runtime state
2419 struct atifs_instruction
;
2420 struct atifs_setupinst
;
2423 * ATI fragment shader
2425 struct ati_fragment_shader
2429 struct atifs_instruction
*Instructions
[2];
2430 struct atifs_setupinst
*SetupInst
[2];
2431 GLfloat Constants
[8][4];
2432 GLbitfield LocalConstDef
; /**< Indicates which constants have been set */
2433 GLubyte numArithInstr
[2];
2434 GLubyte regsAssigned
[2];
2435 GLubyte NumPasses
; /**< 1 or 2 */
2436 /** Current compile stage: 0 setup pass1, 1 arith pass1, 2 setup pass2, 3 arith pass2 */
2438 GLubyte last_optype
;
2439 GLboolean interpinp1
;
2441 /** Array of 2 bit values for each tex unit to remember whether
2442 * STR or STQ swizzle was used
2445 struct gl_program
*Program
;
2449 * Context state for GL_ATI_fragment_shader
2451 struct gl_ati_fragment_shader_state
2454 GLboolean Compiling
;
2455 GLfloat GlobalConstants
[8][4];
2456 struct ati_fragment_shader
*Current
;
2460 * Shader subroutine function definition
2462 struct gl_subroutine_function
2466 int num_compat_types
;
2467 const struct glsl_type
**types
;
2471 * Shader information needed by both gl_shader and gl_linked shader.
2473 struct gl_shader_info
2476 * Tessellation Control shader state from layout qualifiers.
2480 * 0 - vertices not declared in shader, or
2481 * 1 .. GL_MAX_PATCH_VERTICES
2487 * Tessellation Evaluation shader state from layout qualifiers.
2491 * GL_TRIANGLES, GL_QUADS, GL_ISOLINES or PRIM_UNKNOWN if it's not set
2494 GLenum PrimitiveMode
;
2496 enum gl_tess_spacing Spacing
;
2499 * GL_CW, GL_CCW, or 0 if it's not set in this shader.
2503 * 1, 0, or -1 if it's not set in this shader.
2509 * Geometry shader state from GLSL 1.50 layout qualifiers.
2514 * 0 - Invocations count not declared in shader, or
2515 * 1 .. MAX_GEOMETRY_SHADER_INVOCATIONS
2519 * GL_POINTS, GL_LINES, GL_LINES_ADJACENCY, GL_TRIANGLES, or
2520 * GL_TRIANGLES_ADJACENCY, or PRIM_UNKNOWN if it's not set in this
2525 * GL_POINTS, GL_LINE_STRIP or GL_TRIANGLE_STRIP, or PRIM_UNKNOWN if
2526 * it's not set in this shader.
2532 * Compute shader state from ARB_compute_shader and
2533 * ARB_compute_variable_group_size layout qualifiers.
2537 * Size specified using local_size_{x,y,z}, or all 0's to indicate that
2538 * it's not set in this shader.
2540 unsigned LocalSize
[3];
2543 * Whether a variable work group size has been specified as defined by
2544 * ARB_compute_variable_group_size.
2546 bool LocalSizeVariable
;
2551 * A linked GLSL shader object.
2553 struct gl_linked_shader
2555 gl_shader_stage Stage
;
2558 unsigned SourceChecksum
;
2561 struct gl_program
*Program
; /**< Post-compile assembly code */
2564 * \name Sampler tracking
2566 * \note Each of these fields is only set post-linking.
2569 GLbitfield shadow_samplers
; /**< Samplers used for shadow sampling. */
2573 * Number of default uniform block components used by this shader.
2575 * This field is only set post-linking.
2577 unsigned num_uniform_components
;
2580 * Number of combined uniform components used by this shader.
2582 * This field is only set post-linking. It is the sum of the uniform block
2583 * sizes divided by sizeof(float), and num_uniform_compoennts.
2585 unsigned num_combined_uniform_components
;
2587 struct exec_list
*ir
;
2588 struct exec_list
*packed_varyings
;
2589 struct exec_list
*fragdata_arrays
;
2590 struct glsl_symbol_table
*symbols
;
2595 * Compile status enum. compile_skipped is used to indicate the compile
2596 * was skipped due to the shader matching one that's been seen before by
2597 * the on-disk cache.
2599 enum gl_compile_status
2601 compile_failure
= 0,
2608 * A GLSL shader object.
2612 /** GL_FRAGMENT_SHADER || GL_VERTEX_SHADER || GL_GEOMETRY_SHADER_ARB ||
2613 * GL_TESS_CONTROL_SHADER || GL_TESS_EVALUATION_SHADER.
2614 * Must be the first field.
2617 gl_shader_stage Stage
;
2618 GLuint Name
; /**< AKA the handle */
2619 GLint RefCount
; /**< Reference count */
2620 GLchar
*Label
; /**< GL_KHR_debug */
2621 unsigned char sha1
[20]; /**< SHA1 hash of pre-processed source */
2622 GLboolean DeletePending
;
2623 bool IsES
; /**< True if this shader uses GLSL ES */
2625 enum gl_compile_status CompileStatus
;
2628 unsigned SourceChecksum
; /**< for debug/logging purposes */
2630 const GLchar
*Source
; /**< Source code string */
2632 const GLchar
*FallbackSource
; /**< Fallback string used by on-disk cache*/
2636 unsigned Version
; /**< GLSL version used for linking */
2639 * A bitmask of gl_advanced_blend_mode values
2641 GLbitfield BlendSupport
;
2643 struct exec_list
*ir
;
2644 struct glsl_symbol_table
*symbols
;
2647 * Whether early fragment tests are enabled as defined by
2648 * ARB_shader_image_load_store.
2650 bool EarlyFragmentTests
;
2652 bool ARB_fragment_coord_conventions_enable
;
2654 bool redeclares_gl_fragcoord
;
2655 bool uses_gl_fragcoord
;
2657 bool PostDepthCoverage
;
2661 * Fragment shader state from GLSL 1.50 layout qualifiers.
2663 bool origin_upper_left
;
2664 bool pixel_center_integer
;
2667 * Whether bindless_sampler/bindless_image, and respectively
2668 * bound_sampler/bound_image are declared at global scope as defined by
2669 * ARB_bindless_texture.
2671 bool bindless_sampler
;
2672 bool bindless_image
;
2676 /** Global xfb_stride out qualifier if any */
2677 GLuint TransformFeedbackBufferStride
[MAX_FEEDBACK_BUFFERS
];
2679 struct gl_shader_info info
;
2681 /* ARB_gl_spirv related data */
2682 struct gl_shader_spirv_data
*spirv_data
;
2686 struct gl_uniform_buffer_variable
2691 * Name of the uniform as seen by glGetUniformIndices.
2693 * glGetUniformIndices requires that the block instance index \b not be
2694 * present in the name of queried uniforms.
2697 * \c gl_uniform_buffer_variable::IndexName and
2698 * \c gl_uniform_buffer_variable::Name may point to identical storage.
2702 const struct glsl_type
*Type
;
2703 unsigned int Offset
;
2708 struct gl_uniform_block
2710 /** Declared name of the uniform block */
2713 /** Array of supplemental information about UBO ir_variables. */
2714 struct gl_uniform_buffer_variable
*Uniforms
;
2718 * Index (GL_UNIFORM_BLOCK_BINDING) into ctx->UniformBufferBindings[] to use
2719 * with glBindBufferBase to bind a buffer object to this uniform block.
2724 * Minimum size (in bytes) of a buffer object to back this uniform buffer
2725 * (GL_UNIFORM_BLOCK_DATA_SIZE).
2727 GLuint UniformBufferSize
;
2729 /** Stages that reference this block */
2733 * Linearized array index for uniform block instance arrays
2735 * Given a uniform block instance array declared with size
2736 * blk[s_0][s_1]..[s_m], the block referenced by blk[i_0][i_1]..[i_m] will
2737 * have the linearized array index
2740 * i_m + ∑ i_j * ∏ s_k
2743 * For a uniform block instance that is not an array, this is always 0.
2745 uint8_t linearized_array_index
;
2748 * Layout specified in the shader
2750 * This isn't accessible through the API, but it is used while
2751 * cross-validating uniform blocks.
2753 enum glsl_interface_packing _Packing
;
2754 GLboolean _RowMajor
;
2758 * Structure that represents a reference to an atomic buffer from some
2761 struct gl_active_atomic_buffer
2763 /** Uniform indices of the atomic counters declared within it. */
2767 /** Binding point index associated with it. */
2770 /** Minimum reasonable size it is expected to have. */
2773 /** Shader stages making use of it. */
2774 GLboolean StageReferences
[MESA_SHADER_STAGES
];
2778 * Data container for shader queries. This holds only the minimal
2779 * amount of required information for resource queries to work.
2781 struct gl_shader_variable
2784 * Declared type of the variable
2786 const struct glsl_type
*type
;
2789 * If the variable is in an interface block, this is the type of the block.
2791 const struct glsl_type
*interface_type
;
2794 * For variables inside structs (possibly recursively), this is the
2795 * outermost struct type.
2797 const struct glsl_type
*outermost_struct_type
;
2800 * Declared name of the variable
2805 * Storage location of the base of this variable
2807 * The precise meaning of this field depends on the nature of the variable.
2809 * - Vertex shader input: one of the values from \c gl_vert_attrib.
2810 * - Vertex shader output: one of the values from \c gl_varying_slot.
2811 * - Geometry shader input: one of the values from \c gl_varying_slot.
2812 * - Geometry shader output: one of the values from \c gl_varying_slot.
2813 * - Fragment shader input: one of the values from \c gl_varying_slot.
2814 * - Fragment shader output: one of the values from \c gl_frag_result.
2815 * - Uniforms: Per-stage uniform slot number for default uniform block.
2816 * - Uniforms: Index within the uniform block definition for UBO members.
2817 * - Non-UBO Uniforms: explicit location until linking then reused to
2818 * store uniform slot number.
2819 * - Other: This field is not currently used.
2821 * If the variable is a uniform, shader input, or shader output, and the
2822 * slot has not been assigned, the value will be -1.
2827 * Specifies the first component the variable is stored in as per
2828 * ARB_enhanced_layouts.
2830 unsigned component
:2;
2833 * Output index for dual source blending.
2836 * The GLSL spec only allows the values 0 or 1 for the index in \b dual
2842 * Specifies whether a shader input/output is per-patch in tessellation
2848 * Storage class of the variable.
2850 * \sa (n)ir_variable_mode
2855 * Interpolation mode for shader inputs / outputs
2857 * \sa glsl_interp_mode
2859 unsigned interpolation
:2;
2862 * Was the location explicitly set in the shader?
2864 * If the location is explicitly set in the shader, it \b cannot be changed
2865 * by the linker or by the API (e.g., calls to \c glBindAttribLocation have
2868 unsigned explicit_location
:1;
2871 * Precision qualifier.
2873 unsigned precision
:2;
2877 * Active resource in a gl_shader_program
2879 struct gl_program_resource
2881 GLenum Type
; /** Program interface type. */
2882 const void *Data
; /** Pointer to resource associated data structure. */
2883 uint8_t StageReferences
; /** Bitmask of shader stage references. */
2887 * Link status enum. linking_skipped is used to indicate linking
2888 * was skipped due to the shader being loaded from the on-disk cache.
2892 linking_failure
= 0,
2898 * A data structure to be shared by gl_shader_program and gl_program.
2900 struct gl_shader_program_data
2902 GLint RefCount
; /**< Reference count */
2904 /** SHA1 hash of linked shader program */
2905 unsigned char sha1
[20];
2907 unsigned NumUniformStorage
;
2908 unsigned NumHiddenUniforms
;
2909 struct gl_uniform_storage
*UniformStorage
;
2911 unsigned NumUniformBlocks
;
2912 unsigned NumShaderStorageBlocks
;
2914 struct gl_uniform_block
*UniformBlocks
;
2915 struct gl_uniform_block
*ShaderStorageBlocks
;
2917 struct gl_active_atomic_buffer
*AtomicBuffers
;
2918 unsigned NumAtomicBuffers
;
2920 /* Shader cache variables used during restore */
2921 unsigned NumUniformDataSlots
;
2922 union gl_constant_value
*UniformDataSlots
;
2924 /* Used to hold initial uniform values for program binary restores.
2926 * From the ARB_get_program_binary spec:
2928 * "A successful call to ProgramBinary will reset all uniform
2929 * variables to their initial values. The initial value is either
2930 * the value of the variable's initializer as specified in the
2931 * original shader source, or 0 if no initializer was present.
2933 union gl_constant_value
*UniformDataDefaults
;
2935 GLboolean Validated
;
2937 /** List of all active resources after linking. */
2938 struct gl_program_resource
*ProgramResourceList
;
2939 unsigned NumProgramResourceList
;
2941 enum gl_link_status LinkStatus
; /**< GL_LINK_STATUS */
2944 unsigned Version
; /**< GLSL version used for linking */
2946 /* Mask of stages this program was linked against */
2947 unsigned linked_stages
;
2951 * A GLSL program object.
2952 * Basically a linked collection of vertex and fragment shaders.
2954 struct gl_shader_program
2956 GLenum Type
; /**< Always GL_SHADER_PROGRAM (internal token) */
2957 GLuint Name
; /**< aka handle or ID */
2958 GLchar
*Label
; /**< GL_KHR_debug */
2959 GLint RefCount
; /**< Reference count */
2960 GLboolean DeletePending
;
2963 * Is the application intending to glGetProgramBinary this program?
2965 GLboolean BinaryRetreivableHint
;
2968 * Indicates whether program can be bound for individual pipeline stages
2969 * using UseProgramStages after it is next linked.
2971 GLboolean SeparateShader
;
2973 GLuint NumShaders
; /**< number of attached shaders */
2974 struct gl_shader
**Shaders
; /**< List of attached the shaders */
2977 * User-defined attribute bindings
2979 * These are set via \c glBindAttribLocation and are used to direct the
2980 * GLSL linker. These are \b not the values used in the compiled shader,
2981 * and they are \b not the values returned by \c glGetAttribLocation.
2983 struct string_to_uint_map
*AttributeBindings
;
2986 * User-defined fragment data bindings
2988 * These are set via \c glBindFragDataLocation and are used to direct the
2989 * GLSL linker. These are \b not the values used in the compiled shader,
2990 * and they are \b not the values returned by \c glGetFragDataLocation.
2992 struct string_to_uint_map
*FragDataBindings
;
2993 struct string_to_uint_map
*FragDataIndexBindings
;
2996 * Transform feedback varyings last specified by
2997 * glTransformFeedbackVaryings().
2999 * For the current set of transform feedback varyings used for transform
3000 * feedback output, see LinkedTransformFeedback.
3004 /** Global xfb_stride out qualifier if any */
3005 GLuint BufferStride
[MAX_FEEDBACK_BUFFERS
];
3007 GLchar
**VaryingNames
; /**< Array [NumVarying] of char * */
3008 } TransformFeedback
;
3010 struct gl_program
*last_vert_prog
;
3012 /** Post-link gl_FragDepth layout for ARB_conservative_depth. */
3013 enum gl_frag_depth_layout FragDepthLayout
;
3016 * Geometry shader state - copied into gl_program by
3017 * _mesa_copy_linked_program_data().
3022 bool UsesEndPrimitive
;
3027 * Compute shader state - copied into gl_program by
3028 * _mesa_copy_linked_program_data().
3032 * Size of shared variables accessed by the compute shader.
3034 unsigned SharedSize
;
3037 /** Data shared by gl_program and gl_shader_program */
3038 struct gl_shader_program_data
*data
;
3041 * Mapping from GL uniform locations returned by \c glUniformLocation to
3042 * UniformStorage entries. Arrays will have multiple contiguous slots
3043 * in the UniformRemapTable, all pointing to the same UniformStorage entry.
3045 unsigned NumUniformRemapTable
;
3046 struct gl_uniform_storage
**UniformRemapTable
;
3049 * Sometimes there are empty slots left over in UniformRemapTable after we
3050 * allocate slots to explicit locations. This list stores the blocks of
3051 * continuous empty slots inside UniformRemapTable.
3053 struct exec_list EmptyUniformLocations
;
3056 * Total number of explicit uniform location including inactive uniforms.
3058 unsigned NumExplicitUniformLocations
;
3061 * Map of active uniform names to locations
3063 * Maps any active uniform that is not an array element to a location.
3064 * Each active uniform, including individual structure members will appear
3065 * in this map. This roughly corresponds to the set of names that would be
3066 * enumerated by \c glGetActiveUniform.
3068 struct string_to_uint_map
*UniformHash
;
3070 GLboolean SamplersValidated
; /**< Samplers validated against texture units? */
3072 bool IsES
; /**< True if this program uses GLSL ES */
3075 * Per-stage shaders resulting from the first stage of linking.
3077 * Set of linked shaders for this program. The array is accessed using the
3078 * \c MESA_SHADER_* defines. Entries for non-existent stages will be
3081 struct gl_linked_shader
*_LinkedShaders
[MESA_SHADER_STAGES
];
3083 /* True if any of the fragment shaders attached to this program use:
3084 * #extension ARB_fragment_coord_conventions: enable
3086 GLboolean ARB_fragment_coord_conventions_enable
;
3090 #define GLSL_DUMP 0x1 /**< Dump shaders to stdout */
3091 #define GLSL_LOG 0x2 /**< Write shaders to files */
3092 #define GLSL_UNIFORMS 0x4 /**< Print glUniform calls */
3093 #define GLSL_NOP_VERT 0x8 /**< Force no-op vertex shaders */
3094 #define GLSL_NOP_FRAG 0x10 /**< Force no-op fragment shaders */
3095 #define GLSL_USE_PROG 0x20 /**< Log glUseProgram calls */
3096 #define GLSL_REPORT_ERRORS 0x40 /**< Print compilation errors */
3097 #define GLSL_DUMP_ON_ERROR 0x80 /**< Dump shaders to stderr on compile error */
3098 #define GLSL_CACHE_INFO 0x100 /**< Print debug information about shader cache */
3099 #define GLSL_CACHE_FALLBACK 0x200 /**< Force shader cache fallback paths */
3103 * Context state for GLSL vertex/fragment shaders.
3104 * Extended to support pipeline object
3106 struct gl_pipeline_object
3108 /** Name of the pipeline object as received from glGenProgramPipelines.
3109 * It would be 0 for shaders without separate shader objects.
3115 GLchar
*Label
; /**< GL_KHR_debug */
3118 * Programs used for rendering
3120 * There is a separate program set for each shader stage.
3122 struct gl_program
*CurrentProgram
[MESA_SHADER_STAGES
];
3124 struct gl_shader_program
*ReferencedPrograms
[MESA_SHADER_STAGES
];
3127 * Program used by glUniform calls.
3129 * Explicitly set by \c glUseProgram and \c glActiveProgramEXT.
3131 struct gl_shader_program
*ActiveProgram
;
3133 GLbitfield Flags
; /**< Mask of GLSL_x flags */
3135 GLboolean EverBound
; /**< Has the pipeline object been created */
3137 GLboolean Validated
; /**< Pipeline Validation status */
3143 * Context state for GLSL pipeline shaders.
3145 struct gl_pipeline_shader_state
3147 /** Currently bound pipeline object. See _mesa_BindProgramPipeline() */
3148 struct gl_pipeline_object
*Current
;
3150 /* Default Object to ensure that _Shader is never NULL */
3151 struct gl_pipeline_object
*Default
;
3153 /** Pipeline objects */
3154 struct _mesa_HashTable
*Objects
;
3158 * Compiler options for a single GLSL shaders type
3160 struct gl_shader_compiler_options
3162 /** Driver-selectable options: */
3163 GLboolean EmitNoLoops
;
3164 GLboolean EmitNoCont
; /**< Emit CONT opcode? */
3165 GLboolean EmitNoMainReturn
; /**< Emit CONT/RET opcodes? */
3166 GLboolean EmitNoPow
; /**< Emit POW opcodes? */
3167 GLboolean EmitNoSat
; /**< Emit SAT opcodes? */
3168 GLboolean LowerCombinedClipCullDistance
; /** Lower gl_ClipDistance and
3169 * gl_CullDistance together from
3170 * float[8] to vec4[2]
3174 * \name Forms of indirect addressing the driver cannot do.
3177 GLboolean EmitNoIndirectInput
; /**< No indirect addressing of inputs */
3178 GLboolean EmitNoIndirectOutput
; /**< No indirect addressing of outputs */
3179 GLboolean EmitNoIndirectTemp
; /**< No indirect addressing of temps */
3180 GLboolean EmitNoIndirectUniform
; /**< No indirect addressing of constants */
3181 GLboolean EmitNoIndirectSampler
; /**< No indirect addressing of samplers */
3184 GLuint MaxIfDepth
; /**< Maximum nested IF blocks */
3185 GLuint MaxUnrollIterations
;
3188 * Optimize code for array of structures backends.
3190 * This is a proxy for:
3191 * - preferring DP4 instructions (rather than MUL/MAD) for
3192 * matrix * vector operations, such as position transformation.
3194 GLboolean OptimizeForAOS
;
3196 GLboolean LowerBufferInterfaceBlocks
; /**< Lower UBO and SSBO access to intrinsics. */
3198 /** Clamp UBO and SSBO block indices so they don't go out-of-bounds. */
3199 GLboolean ClampBlockIndicesToArrayBounds
;
3201 const struct nir_shader_compiler_options
*NirOptions
;
3206 * Occlusion/timer query object.
3208 struct gl_query_object
3210 GLenum Target
; /**< The query target, when active */
3211 GLuint Id
; /**< hash table ID/name */
3212 GLchar
*Label
; /**< GL_KHR_debug */
3213 GLuint64EXT Result
; /**< the counter */
3214 GLboolean Active
; /**< inside Begin/EndQuery */
3215 GLboolean Ready
; /**< result is ready? */
3216 GLboolean EverBound
;/**< has query object ever been bound */
3217 GLuint Stream
; /**< The stream */
3222 * Context state for query objects.
3224 struct gl_query_state
3226 struct _mesa_HashTable
*QueryObjects
;
3227 struct gl_query_object
*CurrentOcclusionObject
; /* GL_ARB_occlusion_query */
3228 struct gl_query_object
*CurrentTimerObject
; /* GL_EXT_timer_query */
3230 /** GL_NV_conditional_render */
3231 struct gl_query_object
*CondRenderQuery
;
3233 /** GL_EXT_transform_feedback */
3234 struct gl_query_object
*PrimitivesGenerated
[MAX_VERTEX_STREAMS
];
3235 struct gl_query_object
*PrimitivesWritten
[MAX_VERTEX_STREAMS
];
3237 /** GL_ARB_transform_feedback_overflow_query */
3238 struct gl_query_object
*TransformFeedbackOverflow
[MAX_VERTEX_STREAMS
];
3239 struct gl_query_object
*TransformFeedbackOverflowAny
;
3241 /** GL_ARB_timer_query */
3242 struct gl_query_object
*TimeElapsed
;
3244 /** GL_ARB_pipeline_statistics_query */
3245 struct gl_query_object
*pipeline_stats
[MAX_PIPELINE_STATISTICS
];
3247 GLenum CondRenderMode
;
3251 /** Sync object state */
3252 struct gl_sync_object
3254 GLuint Name
; /**< Fence name */
3255 GLint RefCount
; /**< Reference count */
3256 GLchar
*Label
; /**< GL_KHR_debug */
3257 GLboolean DeletePending
; /**< Object was deleted while there were still
3258 * live references (e.g., sync not yet finished)
3260 GLenum SyncCondition
;
3261 GLbitfield Flags
; /**< Flags passed to glFenceSync */
3262 GLuint StatusFlag
:1; /**< Has the sync object been signaled? */
3267 * State which can be shared by multiple contexts:
3269 struct gl_shared_state
3271 simple_mtx_t Mutex
; /**< for thread safety */
3272 GLint RefCount
; /**< Reference count */
3273 struct _mesa_HashTable
*DisplayList
; /**< Display lists hash table */
3274 struct _mesa_HashTable
*BitmapAtlas
; /**< For optimized glBitmap text */
3275 struct _mesa_HashTable
*TexObjects
; /**< Texture objects hash table */
3277 /** Default texture objects (shared by all texture units) */
3278 struct gl_texture_object
*DefaultTex
[NUM_TEXTURE_TARGETS
];
3280 /** Fallback texture used when a bound texture is incomplete */
3281 struct gl_texture_object
*FallbackTex
[NUM_TEXTURE_TARGETS
];
3284 * \name Thread safety and statechange notification for texture
3287 * \todo Improve the granularity of locking.
3290 mtx_t TexMutex
; /**< texobj thread safety */
3291 GLuint TextureStateStamp
; /**< state notification for shared tex */
3294 /** Default buffer object for vertex arrays that aren't in VBOs */
3295 struct gl_buffer_object
*NullBufferObj
;
3298 * \name Vertex/geometry/fragment programs
3301 struct _mesa_HashTable
*Programs
; /**< All vertex/fragment programs */
3302 struct gl_program
*DefaultVertexProgram
;
3303 struct gl_program
*DefaultFragmentProgram
;
3306 /* GL_ATI_fragment_shader */
3307 struct _mesa_HashTable
*ATIShaders
;
3308 struct ati_fragment_shader
*DefaultFragmentShader
;
3310 struct _mesa_HashTable
*BufferObjects
;
3312 /** Table of both gl_shader and gl_shader_program objects */
3313 struct _mesa_HashTable
*ShaderObjects
;
3315 /* GL_EXT_framebuffer_object */
3316 struct _mesa_HashTable
*RenderBuffers
;
3317 struct _mesa_HashTable
*FrameBuffers
;
3320 struct set
*SyncObjects
;
3322 /** GL_ARB_sampler_objects */
3323 struct _mesa_HashTable
*SamplerObjects
;
3325 /* GL_ARB_bindless_texture */
3326 struct hash_table_u64
*TextureHandles
;
3327 struct hash_table_u64
*ImageHandles
;
3328 mtx_t HandlesMutex
; /**< For texture/image handles safety */
3331 * Some context in this share group was affected by a GPU reset
3333 * On the next call to \c glGetGraphicsResetStatus, contexts that have not
3334 * been affected by a GPU reset must also return
3335 * \c GL_INNOCENT_CONTEXT_RESET_ARB.
3337 * Once this field becomes true, it is never reset to false.
3339 bool ShareGroupReset
;
3341 /** EXT_external_objects */
3342 struct _mesa_HashTable
*MemoryObjects
;
3345 * Some context in this share group was affected by a disjoint
3346 * operation. This operation can be anything that has effects on
3347 * values of timer queries in such manner that they become invalid for
3348 * performance metrics. As example gpu reset, counter overflow or gpu
3349 * frequency changes.
3351 bool DisjointOperation
;
3357 * Renderbuffers represent drawing surfaces such as color, depth and/or
3358 * stencil. A framebuffer object has a set of renderbuffers.
3359 * Drivers will typically derive subclasses of this type.
3361 struct gl_renderbuffer
3363 simple_mtx_t Mutex
; /**< for thread safety */
3364 GLuint ClassID
; /**< Useful for drivers */
3366 GLchar
*Label
; /**< GL_KHR_debug */
3368 GLuint Width
, Height
;
3370 GLboolean Purgeable
; /**< Is the buffer purgeable under memory pressure? */
3371 GLboolean AttachedAnytime
; /**< TRUE if it was attached to a framebuffer */
3373 * True for renderbuffers that wrap textures, giving the driver a chance to
3374 * flush render caches through the FinishRenderTexture hook.
3376 * Drivers may also set this on renderbuffers other than those generated by
3377 * glFramebufferTexture(), though it means FinishRenderTexture() would be
3378 * called without a rb->TexImage.
3380 GLboolean NeedsFinishRenderTexture
;
3381 GLubyte NumSamples
; /**< zero means not multisampled */
3382 GLenum InternalFormat
; /**< The user-specified format */
3383 GLenum _BaseFormat
; /**< Either GL_RGB, GL_RGBA, GL_DEPTH_COMPONENT or
3384 GL_STENCIL_INDEX. */
3385 mesa_format Format
; /**< The actual renderbuffer memory format */
3387 * Pointer to the texture image if this renderbuffer wraps a texture,
3390 * Note that the reference on the gl_texture_object containing this
3391 * TexImage is held by the gl_renderbuffer_attachment.
3393 struct gl_texture_image
*TexImage
;
3395 /** Delete this renderbuffer */
3396 void (*Delete
)(struct gl_context
*ctx
, struct gl_renderbuffer
*rb
);
3398 /** Allocate new storage for this renderbuffer */
3399 GLboolean (*AllocStorage
)(struct gl_context
*ctx
,
3400 struct gl_renderbuffer
*rb
,
3401 GLenum internalFormat
,
3402 GLuint width
, GLuint height
);
3407 * A renderbuffer attachment points to either a texture object (and specifies
3408 * a mipmap level, cube face or 3D texture slice) or points to a renderbuffer.
3410 struct gl_renderbuffer_attachment
3412 GLenum Type
; /**< \c GL_NONE or \c GL_TEXTURE or \c GL_RENDERBUFFER_EXT */
3416 * If \c Type is \c GL_RENDERBUFFER_EXT, this stores a pointer to the
3417 * application supplied renderbuffer object.
3419 struct gl_renderbuffer
*Renderbuffer
;
3422 * If \c Type is \c GL_TEXTURE, this stores a pointer to the application
3423 * supplied texture object.
3425 struct gl_texture_object
*Texture
;
3426 GLuint TextureLevel
; /**< Attached mipmap level. */
3427 GLuint CubeMapFace
; /**< 0 .. 5, for cube map textures. */
3428 GLuint Zoffset
; /**< Slice for 3D textures, or layer for both 1D
3429 * and 2D array textures */
3435 * A framebuffer is a collection of renderbuffers (color, depth, stencil, etc).
3436 * In C++ terms, think of this as a base class from which device drivers
3437 * will make derived classes.
3439 struct gl_framebuffer
3441 simple_mtx_t Mutex
; /**< for thread safety */
3443 * If zero, this is a window system framebuffer. If non-zero, this
3444 * is a FBO framebuffer; note that for some devices (i.e. those with
3445 * a natural pixel coordinate system for FBOs that differs from the
3446 * OpenGL/Mesa coordinate system), this means that the viewport,
3447 * polygon face orientation, and polygon stipple will have to be inverted.
3452 GLchar
*Label
; /**< GL_KHR_debug */
3454 GLboolean DeletePending
;
3457 * The framebuffer's visual. Immutable if this is a window system buffer.
3458 * Computed from attachments if user-made FBO.
3460 struct gl_config Visual
;
3463 * Size of frame buffer in pixels. If there are no attachments, then both
3466 GLuint Width
, Height
;
3469 * In the case that the framebuffer has no attachment (i.e.
3470 * GL_ARB_framebuffer_no_attachments) then the geometry of
3471 * the framebuffer is specified by the default values.
3474 GLuint Width
, Height
, Layers
, NumSamples
;
3475 GLboolean FixedSampleLocations
;
3476 /* Derived from NumSamples by the driver so that it can choose a valid
3477 * value for the hardware.
3482 /** \name Drawing bounds (Intersection of buffer size and scissor box)
3483 * The drawing region is given by [_Xmin, _Xmax) x [_Ymin, _Ymax),
3484 * (inclusive for _Xmin and _Ymin while exclusive for _Xmax and _Ymax)
3491 /** \name Derived Z buffer stuff */
3493 GLuint _DepthMax
; /**< Max depth buffer value */
3494 GLfloat _DepthMaxF
; /**< Float max depth buffer value */
3495 GLfloat _MRD
; /**< minimum resolvable difference in Z values */
3498 /** One of the GL_FRAMEBUFFER_(IN)COMPLETE_* tokens */
3501 /** Whether one of Attachment has Type != GL_NONE
3502 * NOTE: the values for Width and Height are set to 0 in case of having
3503 * no attachments, a backend driver supporting the extension
3504 * GL_ARB_framebuffer_no_attachments must check for the flag _HasAttachments
3505 * and if GL_FALSE, must then use the values in DefaultGeometry to initialize
3506 * its viewport, scissor and so on (in particular _Xmin, _Xmax, _Ymin and
3507 * _Ymax do NOT take into account _HasAttachments being false). To get the
3508 * geometry of the framebuffer, the helper functions
3509 * _mesa_geometric_width(),
3510 * _mesa_geometric_height(),
3511 * _mesa_geometric_samples() and
3512 * _mesa_geometric_layers()
3513 * are available that check _HasAttachments.
3515 bool _HasAttachments
;
3517 GLbitfield _IntegerBuffers
; /**< Which color buffers are integer valued */
3519 /* ARB_color_buffer_float */
3520 GLboolean _AllColorBuffersFixedPoint
; /* no integer, no float */
3521 GLboolean _HasSNormOrFloatColorBuffer
;
3524 * The maximum number of layers in the framebuffer, or 0 if the framebuffer
3525 * is not layered. For cube maps and cube map arrays, each cube face
3526 * counts as a layer. As the case for Width, Height a backend driver
3527 * supporting GL_ARB_framebuffer_no_attachments must use DefaultGeometry
3528 * in the case that _HasAttachments is false
3530 GLuint MaxNumLayers
;
3532 /** Array of all renderbuffer attachments, indexed by BUFFER_* tokens. */
3533 struct gl_renderbuffer_attachment Attachment
[BUFFER_COUNT
];
3535 /* In unextended OpenGL these vars are part of the GL_COLOR_BUFFER
3536 * attribute group and GL_PIXEL attribute group, respectively.
3538 GLenum ColorDrawBuffer
[MAX_DRAW_BUFFERS
];
3539 GLenum ColorReadBuffer
;
3541 /** Computed from ColorDraw/ReadBuffer above */
3542 GLuint _NumColorDrawBuffers
;
3543 gl_buffer_index _ColorDrawBufferIndexes
[MAX_DRAW_BUFFERS
];
3544 gl_buffer_index _ColorReadBufferIndex
;
3545 struct gl_renderbuffer
*_ColorDrawBuffers
[MAX_DRAW_BUFFERS
];
3546 struct gl_renderbuffer
*_ColorReadBuffer
;
3548 /** Delete this framebuffer */
3549 void (*Delete
)(struct gl_framebuffer
*fb
);
3554 * Precision info for shader datatypes. See glGetShaderPrecisionFormat().
3558 GLushort RangeMin
; /**< min value exponent */
3559 GLushort RangeMax
; /**< max value exponent */
3560 GLushort Precision
; /**< number of mantissa bits */
3565 * Limits for vertex, geometry and fragment programs/shaders.
3567 struct gl_program_constants
3569 /* logical limits */
3570 GLuint MaxInstructions
;
3571 GLuint MaxAluInstructions
;
3572 GLuint MaxTexInstructions
;
3573 GLuint MaxTexIndirections
;
3576 GLuint MaxAddressRegs
;
3577 GLuint MaxAddressOffset
; /**< [-MaxAddressOffset, MaxAddressOffset-1] */
3578 GLuint MaxParameters
;
3579 GLuint MaxLocalParams
;
3580 GLuint MaxEnvParams
;
3581 /* native/hardware limits */
3582 GLuint MaxNativeInstructions
;
3583 GLuint MaxNativeAluInstructions
;
3584 GLuint MaxNativeTexInstructions
;
3585 GLuint MaxNativeTexIndirections
;
3586 GLuint MaxNativeAttribs
;
3587 GLuint MaxNativeTemps
;
3588 GLuint MaxNativeAddressRegs
;
3589 GLuint MaxNativeParameters
;
3591 GLuint MaxUniformComponents
; /**< Usually == MaxParameters * 4 */
3594 * \name Per-stage input / output limits
3596 * Previous to OpenGL 3.2, the intrastage data limits were advertised with
3597 * a single value: GL_MAX_VARYING_COMPONENTS (GL_MAX_VARYING_VECTORS in
3598 * ES). This is stored as \c gl_constants::MaxVarying.
3600 * Starting with OpenGL 3.2, the limits are advertised with per-stage
3601 * variables. Each stage as a certain number of outputs that it can feed
3602 * to the next stage and a certain number inputs that it can consume from
3603 * the previous stage.
3605 * Vertex shader inputs do not participate this in this accounting.
3606 * These are tracked exclusively by \c gl_program_constants::MaxAttribs.
3608 * Fragment shader outputs do not participate this in this accounting.
3609 * These are tracked exclusively by \c gl_constants::MaxDrawBuffers.
3612 GLuint MaxInputComponents
;
3613 GLuint MaxOutputComponents
;
3616 /* ES 2.0 and GL_ARB_ES2_compatibility */
3617 struct gl_precision LowFloat
, MediumFloat
, HighFloat
;
3618 struct gl_precision LowInt
, MediumInt
, HighInt
;
3619 /* GL_ARB_uniform_buffer_object */
3620 GLuint MaxUniformBlocks
;
3621 GLuint MaxCombinedUniformComponents
;
3622 GLuint MaxTextureImageUnits
;
3624 /* GL_ARB_shader_atomic_counters */
3625 GLuint MaxAtomicBuffers
;
3626 GLuint MaxAtomicCounters
;
3628 /* GL_ARB_shader_image_load_store */
3629 GLuint MaxImageUniforms
;
3631 /* GL_ARB_shader_storage_buffer_object */
3632 GLuint MaxShaderStorageBlocks
;
3636 * Constants which may be overridden by device driver during context creation
3637 * but are never changed after that.
3641 GLuint MaxTextureMbytes
; /**< Max memory per image, in MB */
3642 GLuint MaxTextureLevels
; /**< Max mipmap levels. */
3643 GLuint Max3DTextureLevels
; /**< Max mipmap levels for 3D textures */
3644 GLuint MaxCubeTextureLevels
; /**< Max mipmap levels for cube textures */
3645 GLuint MaxArrayTextureLayers
; /**< Max layers in array textures */
3646 GLuint MaxTextureRectSize
; /**< Max rectangle texture size, in pixes */
3647 GLuint MaxTextureCoordUnits
;
3648 GLuint MaxCombinedTextureImageUnits
;
3649 GLuint MaxTextureUnits
; /**< = MIN(CoordUnits, FragmentProgram.ImageUnits) */
3650 GLfloat MaxTextureMaxAnisotropy
; /**< GL_EXT_texture_filter_anisotropic */
3651 GLfloat MaxTextureLodBias
; /**< GL_EXT_texture_lod_bias */
3652 GLuint MaxTextureBufferSize
; /**< GL_ARB_texture_buffer_object */
3654 GLuint TextureBufferOffsetAlignment
; /**< GL_ARB_texture_buffer_range */
3656 GLuint MaxArrayLockSize
;
3660 GLfloat MinPointSize
, MaxPointSize
; /**< aliased */
3661 GLfloat MinPointSizeAA
, MaxPointSizeAA
; /**< antialiased */
3662 GLfloat PointSizeGranularity
;
3663 GLfloat MinLineWidth
, MaxLineWidth
; /**< aliased */
3664 GLfloat MinLineWidthAA
, MaxLineWidthAA
; /**< antialiased */
3665 GLfloat LineWidthGranularity
;
3667 GLuint MaxClipPlanes
;
3669 GLfloat MaxShininess
; /**< GL_NV_light_max_exponent */
3670 GLfloat MaxSpotExponent
; /**< GL_NV_light_max_exponent */
3672 GLuint MaxViewportWidth
, MaxViewportHeight
;
3673 GLuint MaxViewports
; /**< GL_ARB_viewport_array */
3674 GLuint ViewportSubpixelBits
; /**< GL_ARB_viewport_array */
3678 } ViewportBounds
; /**< GL_ARB_viewport_array */
3679 GLuint MaxWindowRectangles
; /**< GL_EXT_window_rectangles */
3681 struct gl_program_constants Program
[MESA_SHADER_STAGES
];
3682 GLuint MaxProgramMatrices
;
3683 GLuint MaxProgramMatrixStackDepth
;
3686 GLuint SamplesPassed
;
3689 GLuint PrimitivesGenerated
;
3690 GLuint PrimitivesWritten
;
3691 GLuint VerticesSubmitted
;
3692 GLuint PrimitivesSubmitted
;
3693 GLuint VsInvocations
;
3695 GLuint TessInvocations
;
3696 GLuint GsInvocations
;
3697 GLuint GsPrimitives
;
3698 GLuint FsInvocations
;
3699 GLuint ComputeInvocations
;
3700 GLuint ClInPrimitives
;
3701 GLuint ClOutPrimitives
;
3704 GLuint MaxDrawBuffers
; /**< GL_ARB_draw_buffers */
3706 GLuint MaxColorAttachments
; /**< GL_EXT_framebuffer_object */
3707 GLuint MaxRenderbufferSize
; /**< GL_EXT_framebuffer_object */
3708 GLuint MaxSamples
; /**< GL_ARB_framebuffer_object */
3711 * GL_ARB_framebuffer_no_attachments
3713 GLuint MaxFramebufferWidth
;
3714 GLuint MaxFramebufferHeight
;
3715 GLuint MaxFramebufferLayers
;
3716 GLuint MaxFramebufferSamples
;
3718 /** Number of varying vectors between any two shader stages. */
3722 * GL_ARB_uniform_buffer_object
3724 GLuint MaxCombinedUniformBlocks
;
3725 GLuint MaxUniformBufferBindings
;
3726 GLuint MaxUniformBlockSize
;
3727 GLuint UniformBufferOffsetAlignment
;
3731 * GL_ARB_shader_storage_buffer_object
3733 GLuint MaxCombinedShaderStorageBlocks
;
3734 GLuint MaxShaderStorageBufferBindings
;
3735 GLuint MaxShaderStorageBlockSize
;
3736 GLuint ShaderStorageBufferOffsetAlignment
;
3740 * GL_ARB_explicit_uniform_location
3742 GLuint MaxUserAssignableUniformLocations
;
3744 /** geometry shader */
3745 GLuint MaxGeometryOutputVertices
;
3746 GLuint MaxGeometryTotalOutputComponents
;
3748 GLuint GLSLVersion
; /**< Desktop GLSL version supported (ex: 120 = 1.20) */
3751 * Changes default GLSL extension behavior from "error" to "warn". It's out
3752 * of spec, but it can make some apps work that otherwise wouldn't.
3754 GLboolean ForceGLSLExtensionsWarn
;
3757 * If non-zero, forces GLSL shaders to behave as if they began
3758 * with "#version ForceGLSLVersion".
3760 GLuint ForceGLSLVersion
;
3763 * Allow GLSL #extension directives in the middle of shaders.
3765 GLboolean AllowGLSLExtensionDirectiveMidShader
;
3768 * Allow GLSL built-in variables to be redeclared verbatim
3770 GLboolean AllowGLSLBuiltinVariableRedeclaration
;
3773 * Allow GLSL interpolation qualifier mismatch across shader stages.
3775 GLboolean AllowGLSLCrossStageInterpolationMismatch
;
3778 * Allow creating a higher compat profile (version 3.1+) for apps that
3779 * request it. Be careful when adding that driconf option because some
3780 * features are unimplemented and might not work correctly.
3782 GLboolean AllowHigherCompatVersion
;
3785 * Force computing the absolute value for sqrt() and inversesqrt() to follow
3786 * D3D9 when apps rely on this behaviour.
3788 GLboolean ForceGLSLAbsSqrt
;
3791 * Force uninitialized variables to default to zero.
3793 GLboolean GLSLZeroInit
;
3796 * Does the driver support real 32-bit integers? (Otherwise, integers are
3797 * simulated via floats.)
3799 GLboolean NativeIntegers
;
3802 * Does VertexID count from zero or from base vertex?
3805 * If desktop GLSL 1.30 or GLSL ES 3.00 are not supported, this field is
3806 * ignored and need not be set.
3808 bool VertexID_is_zero_based
;
3811 * If the driver supports real 32-bit integers, what integer value should be
3812 * used for boolean true in uniform uploads? (Usually 1 or ~0.)
3814 GLuint UniformBooleanTrue
;
3817 * Maximum amount of time, measured in nanseconds, that the server can wait.
3819 GLuint64 MaxServerWaitTimeout
;
3821 /** GL_EXT_provoking_vertex */
3822 GLboolean QuadsFollowProvokingVertexConvention
;
3824 /** GL_ARB_viewport_array */
3825 GLenum LayerAndVPIndexProvokingVertex
;
3827 /** OpenGL version 3.0 */
3828 GLbitfield ContextFlags
; /**< Ex: GL_CONTEXT_FLAG_FORWARD_COMPATIBLE_BIT */
3830 /** OpenGL version 3.2 */
3831 GLbitfield ProfileMask
; /**< Mask of CONTEXT_x_PROFILE_BIT */
3833 /** OpenGL version 4.4 */
3834 GLuint MaxVertexAttribStride
;
3836 /** GL_EXT_transform_feedback */
3837 GLuint MaxTransformFeedbackBuffers
;
3838 GLuint MaxTransformFeedbackSeparateComponents
;
3839 GLuint MaxTransformFeedbackInterleavedComponents
;
3840 GLuint MaxVertexStreams
;
3842 /** GL_EXT_gpu_shader4 */
3843 GLint MinProgramTexelOffset
, MaxProgramTexelOffset
;
3845 /** GL_ARB_texture_gather */
3846 GLuint MinProgramTextureGatherOffset
;
3847 GLuint MaxProgramTextureGatherOffset
;
3848 GLuint MaxProgramTextureGatherComponents
;
3850 /* GL_ARB_robustness */
3851 GLenum ResetStrategy
;
3853 /* GL_KHR_robustness */
3854 GLboolean RobustAccess
;
3856 /* GL_ARB_blend_func_extended */
3857 GLuint MaxDualSourceDrawBuffers
;
3860 * Whether the implementation strips out and ignores texture borders.
3862 * Many GPU hardware implementations don't support rendering with texture
3863 * borders and mipmapped textures. (Note: not static border color, but the
3864 * old 1-pixel border around each edge). Implementations then have to do
3865 * slow fallbacks to be correct, or just ignore the border and be fast but
3866 * wrong. Setting the flag strips the border off of TexImage calls,
3867 * providing "fast but wrong" at significantly reduced driver complexity.
3869 * Texture borders are deprecated in GL 3.0.
3871 GLboolean StripTextureBorder
;
3874 * For drivers which can do a better job at eliminating unused uniforms
3875 * than the GLSL compiler.
3877 * XXX Remove these as soon as a better solution is available.
3879 GLboolean GLSLSkipStrictMaxUniformLimitCheck
;
3881 /** Whether gl_FragCoord and gl_FrontFacing are system values. */
3882 bool GLSLFragCoordIsSysVal
;
3883 bool GLSLFrontFacingIsSysVal
;
3886 * Run the minimum amount of GLSL optimizations to be able to link
3887 * shaders optimally (eliminate dead varyings and uniforms) and just do
3888 * all the necessary lowering.
3890 bool GLSLOptimizeConservatively
;
3893 * True if gl_TessLevelInner/Outer[] in the TES should be inputs
3894 * (otherwise, they're system values).
3896 bool GLSLTessLevelsAsInputs
;
3899 * Always use the GetTransformFeedbackVertexCount() driver hook, rather
3900 * than passing the transform feedback object to the drawing function.
3902 GLboolean AlwaysUseGetTransformFeedbackVertexCount
;
3904 /** GL_ARB_map_buffer_alignment */
3905 GLuint MinMapBufferAlignment
;
3908 * Disable varying packing. This is out of spec, but potentially useful
3909 * for older platforms that supports a limited number of texture
3910 * indirections--on these platforms, unpacking the varyings in the fragment
3911 * shader increases the number of texture indirections by 1, which might
3912 * make some shaders not executable at all.
3914 * Drivers that support transform feedback must set this value to GL_FALSE.
3916 GLboolean DisableVaryingPacking
;
3919 * UBOs and SSBOs can be packed tightly by the OpenGL implementation when
3920 * layout is set as shared (the default) or packed. However most Mesa drivers
3921 * just use STD140 for these layouts. This flag allows drivers to use STD430
3922 * for packed and shared layouts which allows arrays to be packed more
3925 bool UseSTD430AsDefaultPacking
;
3928 * Should meaningful names be generated for compiler temporary variables?
3930 * Generally, it is not useful to have the compiler generate "meaningful"
3931 * names for temporary variables that it creates. This can, however, be a
3932 * useful debugging aid. In Mesa debug builds or release builds when
3933 * MESA_GLSL is set at run-time, meaningful names will be generated.
3934 * Drivers can also force names to be generated by setting this field.
3935 * For example, the i965 driver may set it when INTEL_DEBUG=vs (to dump
3936 * vertex shader assembly) is set at run-time.
3938 bool GenerateTemporaryNames
;
3941 * Maximum value supported for an index in DrawElements and friends.
3943 * This must be at least (1ull<<24)-1. The default value is
3946 * \since ES 3.0 or GL_ARB_ES3_compatibility
3947 * \sa _mesa_init_constants
3949 GLuint64 MaxElementIndex
;
3952 * Disable interpretation of line continuations (lines ending with a
3953 * backslash character ('\') in GLSL source.
3955 GLboolean DisableGLSLLineContinuations
;
3957 /** GL_ARB_texture_multisample */
3958 GLint MaxColorTextureSamples
;
3959 GLint MaxDepthTextureSamples
;
3960 GLint MaxIntegerSamples
;
3963 * GL_EXT_texture_multisample_blit_scaled implementation assumes that
3964 * samples are laid out in a rectangular grid roughly corresponding to
3965 * sample locations within a pixel. Below SampleMap{2,4,8}x variables
3966 * are used to map indices of rectangular grid to sample numbers within
3967 * a pixel. This mapping of indices to sample numbers must be initialized
3968 * by the driver for the target hardware. For example, if we have the 8X
3969 * MSAA sample number layout (sample positions) for XYZ hardware:
3971 * sample indices layout sample number layout
3972 * --------- ---------
3973 * | 0 | 1 | | a | b |
3974 * --------- ---------
3975 * | 2 | 3 | | c | d |
3976 * --------- ---------
3977 * | 4 | 5 | | e | f |
3978 * --------- ---------
3979 * | 6 | 7 | | g | h |
3980 * --------- ---------
3982 * Where a,b,c,d,e,f,g,h are integers between [0-7].
3984 * Then, initialize the SampleMap8x variable for XYZ hardware as shown
3986 * SampleMap8x = {a, b, c, d, e, f, g, h};
3988 * Follow the logic for sample counts 2-8.
3990 * For 16x the sample indices layout as a 4x4 grid as follows:
4002 uint8_t SampleMap2x
[2];
4003 uint8_t SampleMap4x
[4];
4004 uint8_t SampleMap8x
[8];
4005 uint8_t SampleMap16x
[16];
4007 /** GL_ARB_shader_atomic_counters */
4008 GLuint MaxAtomicBufferBindings
;
4009 GLuint MaxAtomicBufferSize
;
4010 GLuint MaxCombinedAtomicBuffers
;
4011 GLuint MaxCombinedAtomicCounters
;
4013 /** GL_ARB_vertex_attrib_binding */
4014 GLint MaxVertexAttribRelativeOffset
;
4015 GLint MaxVertexAttribBindings
;
4017 /* GL_ARB_shader_image_load_store */
4018 GLuint MaxImageUnits
;
4019 GLuint MaxCombinedShaderOutputResources
;
4020 GLuint MaxImageSamples
;
4021 GLuint MaxCombinedImageUniforms
;
4023 /** GL_ARB_compute_shader */
4024 GLuint MaxComputeWorkGroupCount
[3]; /* Array of x, y, z dimensions */
4025 GLuint MaxComputeWorkGroupSize
[3]; /* Array of x, y, z dimensions */
4026 GLuint MaxComputeWorkGroupInvocations
;
4027 GLuint MaxComputeSharedMemorySize
;
4029 /** GL_ARB_compute_variable_group_size */
4030 GLuint MaxComputeVariableGroupSize
[3]; /* Array of x, y, z dimensions */
4031 GLuint MaxComputeVariableGroupInvocations
;
4033 /** GL_ARB_gpu_shader5 */
4034 GLfloat MinFragmentInterpolationOffset
;
4035 GLfloat MaxFragmentInterpolationOffset
;
4037 GLboolean FakeSWMSAA
;
4039 /** GL_KHR_context_flush_control */
4040 GLenum ContextReleaseBehavior
;
4042 struct gl_shader_compiler_options ShaderCompilerOptions
[MESA_SHADER_STAGES
];
4044 /** GL_ARB_tessellation_shader */
4045 GLuint MaxPatchVertices
;
4046 GLuint MaxTessGenLevel
;
4047 GLuint MaxTessPatchComponents
;
4048 GLuint MaxTessControlTotalOutputComponents
;
4049 bool LowerTessLevel
; /**< Lower gl_TessLevel* from float[n] to vecn? */
4050 bool PrimitiveRestartForPatches
;
4051 bool LowerCsDerivedVariables
; /**< Lower gl_GlobalInvocationID and
4052 * gl_LocalInvocationIndex based on
4053 * other builtin variables. */
4055 /** GL_OES_primitive_bounding_box */
4056 bool NoPrimitiveBoundingBoxOutput
;
4058 /** GL_ARB_sparse_buffer */
4059 GLuint SparseBufferPageSize
;
4061 /** Used as an input for sha1 generation in the on-disk shader cache */
4062 unsigned char *dri_config_options_sha1
;
4064 /** When drivers are OK with mapped buffers during draw and other calls. */
4065 bool AllowMappedBuffersDuringExecution
;
4067 /** GL_ARB_get_program_binary */
4068 GLuint NumProgramBinaryFormats
;
4073 * Enable flag for each OpenGL extension. Different device drivers will
4074 * enable different extensions at runtime.
4076 struct gl_extensions
4078 GLboolean dummy
; /* don't remove this! */
4079 GLboolean dummy_true
; /* Set true by _mesa_init_extensions(). */
4080 GLboolean dummy_false
; /* Set false by _mesa_init_extensions(). */
4081 GLboolean ANGLE_texture_compression_dxt
;
4082 GLboolean ARB_ES2_compatibility
;
4083 GLboolean ARB_ES3_compatibility
;
4084 GLboolean ARB_ES3_1_compatibility
;
4085 GLboolean ARB_ES3_2_compatibility
;
4086 GLboolean ARB_arrays_of_arrays
;
4087 GLboolean ARB_base_instance
;
4088 GLboolean ARB_bindless_texture
;
4089 GLboolean ARB_blend_func_extended
;
4090 GLboolean ARB_buffer_storage
;
4091 GLboolean ARB_clear_texture
;
4092 GLboolean ARB_clip_control
;
4093 GLboolean ARB_color_buffer_float
;
4094 GLboolean ARB_compute_shader
;
4095 GLboolean ARB_compute_variable_group_size
;
4096 GLboolean ARB_conditional_render_inverted
;
4097 GLboolean ARB_conservative_depth
;
4098 GLboolean ARB_copy_image
;
4099 GLboolean ARB_cull_distance
;
4100 GLboolean ARB_depth_buffer_float
;
4101 GLboolean ARB_depth_clamp
;
4102 GLboolean ARB_depth_texture
;
4103 GLboolean ARB_derivative_control
;
4104 GLboolean ARB_draw_buffers_blend
;
4105 GLboolean ARB_draw_elements_base_vertex
;
4106 GLboolean ARB_draw_indirect
;
4107 GLboolean ARB_draw_instanced
;
4108 GLboolean ARB_fragment_coord_conventions
;
4109 GLboolean ARB_fragment_layer_viewport
;
4110 GLboolean ARB_fragment_program
;
4111 GLboolean ARB_fragment_program_shadow
;
4112 GLboolean ARB_fragment_shader
;
4113 GLboolean ARB_framebuffer_no_attachments
;
4114 GLboolean ARB_framebuffer_object
;
4115 GLboolean ARB_enhanced_layouts
;
4116 GLboolean ARB_explicit_attrib_location
;
4117 GLboolean ARB_explicit_uniform_location
;
4118 GLboolean ARB_gl_spirv
;
4119 GLboolean ARB_gpu_shader5
;
4120 GLboolean ARB_gpu_shader_fp64
;
4121 GLboolean ARB_gpu_shader_int64
;
4122 GLboolean ARB_half_float_vertex
;
4123 GLboolean ARB_indirect_parameters
;
4124 GLboolean ARB_instanced_arrays
;
4125 GLboolean ARB_internalformat_query
;
4126 GLboolean ARB_internalformat_query2
;
4127 GLboolean ARB_map_buffer_range
;
4128 GLboolean ARB_occlusion_query
;
4129 GLboolean ARB_occlusion_query2
;
4130 GLboolean ARB_pipeline_statistics_query
;
4131 GLboolean ARB_point_sprite
;
4132 GLboolean ARB_polygon_offset_clamp
;
4133 GLboolean ARB_post_depth_coverage
;
4134 GLboolean ARB_query_buffer_object
;
4135 GLboolean ARB_robust_buffer_access_behavior
;
4136 GLboolean ARB_sample_shading
;
4137 GLboolean ARB_seamless_cube_map
;
4138 GLboolean ARB_shader_atomic_counter_ops
;
4139 GLboolean ARB_shader_atomic_counters
;
4140 GLboolean ARB_shader_ballot
;
4141 GLboolean ARB_shader_bit_encoding
;
4142 GLboolean ARB_shader_clock
;
4143 GLboolean ARB_shader_draw_parameters
;
4144 GLboolean ARB_shader_group_vote
;
4145 GLboolean ARB_shader_image_load_store
;
4146 GLboolean ARB_shader_image_size
;
4147 GLboolean ARB_shader_precision
;
4148 GLboolean ARB_shader_stencil_export
;
4149 GLboolean ARB_shader_storage_buffer_object
;
4150 GLboolean ARB_shader_texture_image_samples
;
4151 GLboolean ARB_shader_texture_lod
;
4152 GLboolean ARB_shader_viewport_layer_array
;
4153 GLboolean ARB_shading_language_packing
;
4154 GLboolean ARB_shading_language_420pack
;
4155 GLboolean ARB_shadow
;
4156 GLboolean ARB_sparse_buffer
;
4157 GLboolean ARB_stencil_texturing
;
4159 GLboolean ARB_tessellation_shader
;
4160 GLboolean ARB_texture_border_clamp
;
4161 GLboolean ARB_texture_buffer_object
;
4162 GLboolean ARB_texture_buffer_object_rgb32
;
4163 GLboolean ARB_texture_buffer_range
;
4164 GLboolean ARB_texture_compression_bptc
;
4165 GLboolean ARB_texture_compression_rgtc
;
4166 GLboolean ARB_texture_cube_map
;
4167 GLboolean ARB_texture_cube_map_array
;
4168 GLboolean ARB_texture_env_combine
;
4169 GLboolean ARB_texture_env_crossbar
;
4170 GLboolean ARB_texture_env_dot3
;
4171 GLboolean ARB_texture_filter_anisotropic
;
4172 GLboolean ARB_texture_float
;
4173 GLboolean ARB_texture_gather
;
4174 GLboolean ARB_texture_mirror_clamp_to_edge
;
4175 GLboolean ARB_texture_multisample
;
4176 GLboolean ARB_texture_non_power_of_two
;
4177 GLboolean ARB_texture_stencil8
;
4178 GLboolean ARB_texture_query_levels
;
4179 GLboolean ARB_texture_query_lod
;
4180 GLboolean ARB_texture_rg
;
4181 GLboolean ARB_texture_rgb10_a2ui
;
4182 GLboolean ARB_texture_view
;
4183 GLboolean ARB_timer_query
;
4184 GLboolean ARB_transform_feedback2
;
4185 GLboolean ARB_transform_feedback3
;
4186 GLboolean ARB_transform_feedback_instanced
;
4187 GLboolean ARB_transform_feedback_overflow_query
;
4188 GLboolean ARB_uniform_buffer_object
;
4189 GLboolean ARB_vertex_attrib_64bit
;
4190 GLboolean ARB_vertex_program
;
4191 GLboolean ARB_vertex_shader
;
4192 GLboolean ARB_vertex_type_10f_11f_11f_rev
;
4193 GLboolean ARB_vertex_type_2_10_10_10_rev
;
4194 GLboolean ARB_viewport_array
;
4195 GLboolean EXT_blend_color
;
4196 GLboolean EXT_blend_equation_separate
;
4197 GLboolean EXT_blend_func_separate
;
4198 GLboolean EXT_blend_minmax
;
4199 GLboolean EXT_depth_bounds_test
;
4200 GLboolean EXT_disjoint_timer_query
;
4201 GLboolean EXT_draw_buffers2
;
4202 GLboolean EXT_framebuffer_multisample
;
4203 GLboolean EXT_framebuffer_multisample_blit_scaled
;
4204 GLboolean EXT_framebuffer_sRGB
;
4205 GLboolean EXT_gpu_program_parameters
;
4206 GLboolean EXT_gpu_shader4
;
4207 GLboolean EXT_memory_object
;
4208 GLboolean EXT_memory_object_fd
;
4209 GLboolean EXT_packed_float
;
4210 GLboolean EXT_pixel_buffer_object
;
4211 GLboolean EXT_point_parameters
;
4212 GLboolean EXT_provoking_vertex
;
4213 GLboolean EXT_shader_integer_mix
;
4214 GLboolean EXT_shader_samples_identical
;
4215 GLboolean EXT_stencil_two_side
;
4216 GLboolean EXT_texture_array
;
4217 GLboolean EXT_texture_compression_latc
;
4218 GLboolean EXT_texture_compression_s3tc
;
4219 GLboolean EXT_texture_env_dot3
;
4220 GLboolean EXT_texture_filter_anisotropic
;
4221 GLboolean EXT_texture_integer
;
4222 GLboolean EXT_texture_mirror_clamp
;
4223 GLboolean EXT_texture_shared_exponent
;
4224 GLboolean EXT_texture_snorm
;
4225 GLboolean EXT_texture_sRGB
;
4226 GLboolean EXT_texture_sRGB_decode
;
4227 GLboolean EXT_texture_swizzle
;
4228 GLboolean EXT_texture_type_2_10_10_10_REV
;
4229 GLboolean EXT_transform_feedback
;
4230 GLboolean EXT_timer_query
;
4231 GLboolean EXT_vertex_array_bgra
;
4232 GLboolean EXT_window_rectangles
;
4233 GLboolean OES_copy_image
;
4234 GLboolean OES_primitive_bounding_box
;
4235 GLboolean OES_sample_variables
;
4236 GLboolean OES_standard_derivatives
;
4237 GLboolean OES_texture_buffer
;
4238 GLboolean OES_texture_cube_map_array
;
4239 GLboolean OES_viewport_array
;
4240 /* vendor extensions */
4241 GLboolean AMD_performance_monitor
;
4242 GLboolean AMD_pinned_memory
;
4243 GLboolean AMD_seamless_cubemap_per_texture
;
4244 GLboolean AMD_vertex_shader_layer
;
4245 GLboolean AMD_vertex_shader_viewport_index
;
4246 GLboolean ANDROID_extension_pack_es31a
;
4247 GLboolean APPLE_object_purgeable
;
4248 GLboolean ATI_meminfo
;
4249 GLboolean ATI_texture_compression_3dc
;
4250 GLboolean ATI_texture_mirror_once
;
4251 GLboolean ATI_texture_env_combine3
;
4252 GLboolean ATI_fragment_shader
;
4253 GLboolean ATI_separate_stencil
;
4254 GLboolean GREMEDY_string_marker
;
4255 GLboolean INTEL_conservative_rasterization
;
4256 GLboolean INTEL_performance_query
;
4257 GLboolean KHR_blend_equation_advanced
;
4258 GLboolean KHR_blend_equation_advanced_coherent
;
4259 GLboolean KHR_robustness
;
4260 GLboolean KHR_texture_compression_astc_hdr
;
4261 GLboolean KHR_texture_compression_astc_ldr
;
4262 GLboolean KHR_texture_compression_astc_sliced_3d
;
4263 GLboolean MESA_tile_raster_order
;
4264 GLboolean MESA_pack_invert
;
4265 GLboolean MESA_shader_framebuffer_fetch
;
4266 GLboolean MESA_shader_framebuffer_fetch_non_coherent
;
4267 GLboolean MESA_shader_integer_functions
;
4268 GLboolean MESA_ycbcr_texture
;
4269 GLboolean NV_conditional_render
;
4270 GLboolean NV_fill_rectangle
;
4271 GLboolean NV_fog_distance
;
4272 GLboolean NV_point_sprite
;
4273 GLboolean NV_primitive_restart
;
4274 GLboolean NV_texture_barrier
;
4275 GLboolean NV_texture_env_combine4
;
4276 GLboolean NV_texture_rectangle
;
4277 GLboolean NV_vdpau_interop
;
4278 GLboolean NVX_gpu_memory_info
;
4279 GLboolean TDFX_texture_compression_FXT1
;
4280 GLboolean OES_EGL_image
;
4281 GLboolean OES_draw_texture
;
4282 GLboolean OES_depth_texture_cube_map
;
4283 GLboolean OES_EGL_image_external
;
4284 GLboolean OES_texture_float
;
4285 GLboolean OES_texture_float_linear
;
4286 GLboolean OES_texture_half_float
;
4287 GLboolean OES_texture_half_float_linear
;
4288 GLboolean OES_compressed_ETC1_RGB8_texture
;
4289 GLboolean OES_geometry_shader
;
4290 GLboolean OES_texture_compression_astc
;
4291 GLboolean extension_sentinel
;
4292 /** The extension string */
4293 const GLubyte
*String
;
4294 /** Number of supported extensions */
4297 * The context version which extension helper functions compare against.
4298 * By default, the value is equal to ctx->Version. This changes to ~0
4299 * while meta is in progress.
4303 * Force-enabled, yet unrecognized, extensions.
4304 * See _mesa_one_time_init_extension_overrides()
4306 #define MAX_UNRECOGNIZED_EXTENSIONS 16
4307 const char *unrecognized_extensions
[MAX_UNRECOGNIZED_EXTENSIONS
];
4312 * A stack of matrices (projection, modelview, color, texture, etc).
4314 struct gl_matrix_stack
4316 GLmatrix
*Top
; /**< points into Stack */
4317 GLmatrix
*Stack
; /**< array [MaxDepth] of GLmatrix */
4318 unsigned StackSize
; /**< Number of elements in Stack */
4319 GLuint Depth
; /**< 0 <= Depth < MaxDepth */
4320 GLuint MaxDepth
; /**< size of Stack[] array */
4321 GLuint DirtyFlag
; /**< _NEW_MODELVIEW or _NEW_PROJECTION, for example */
4326 * \name Bits for image transfer operations
4327 * \sa __struct gl_contextRec::ImageTransferState.
4330 #define IMAGE_SCALE_BIAS_BIT 0x1
4331 #define IMAGE_SHIFT_OFFSET_BIT 0x2
4332 #define IMAGE_MAP_COLOR_BIT 0x4
4333 #define IMAGE_CLAMP_BIT 0x800
4336 /** Pixel Transfer ops */
4337 #define IMAGE_BITS (IMAGE_SCALE_BIAS_BIT | \
4338 IMAGE_SHIFT_OFFSET_BIT | \
4339 IMAGE_MAP_COLOR_BIT)
4343 * \name Bits to indicate what state has changed.
4346 #define _NEW_MODELVIEW (1u << 0) /**< gl_context::ModelView */
4347 #define _NEW_PROJECTION (1u << 1) /**< gl_context::Projection */
4348 #define _NEW_TEXTURE_MATRIX (1u << 2) /**< gl_context::TextureMatrix */
4349 #define _NEW_COLOR (1u << 3) /**< gl_context::Color */
4350 #define _NEW_DEPTH (1u << 4) /**< gl_context::Depth */
4351 #define _NEW_EVAL (1u << 5) /**< gl_context::Eval, EvalMap */
4352 #define _NEW_FOG (1u << 6) /**< gl_context::Fog */
4353 #define _NEW_HINT (1u << 7) /**< gl_context::Hint */
4354 #define _NEW_LIGHT (1u << 8) /**< gl_context::Light */
4355 #define _NEW_LINE (1u << 9) /**< gl_context::Line */
4356 #define _NEW_PIXEL (1u << 10) /**< gl_context::Pixel */
4357 #define _NEW_POINT (1u << 11) /**< gl_context::Point */
4358 #define _NEW_POLYGON (1u << 12) /**< gl_context::Polygon */
4359 #define _NEW_POLYGONSTIPPLE (1u << 13) /**< gl_context::PolygonStipple */
4360 #define _NEW_SCISSOR (1u << 14) /**< gl_context::Scissor */
4361 #define _NEW_STENCIL (1u << 15) /**< gl_context::Stencil */
4362 #define _NEW_TEXTURE_OBJECT (1u << 16) /**< gl_context::Texture (bindings only) */
4363 #define _NEW_TRANSFORM (1u << 17) /**< gl_context::Transform */
4364 #define _NEW_VIEWPORT (1u << 18) /**< gl_context::Viewport */
4365 #define _NEW_TEXTURE_STATE (1u << 19) /**< gl_context::Texture (states only) */
4366 #define _NEW_ARRAY (1u << 20) /**< gl_context::Array */
4367 #define _NEW_RENDERMODE (1u << 21) /**< gl_context::RenderMode, etc */
4368 #define _NEW_BUFFERS (1u << 22) /**< gl_context::Visual, DrawBuffer, */
4369 #define _NEW_CURRENT_ATTRIB (1u << 23) /**< gl_context::Current */
4370 #define _NEW_MULTISAMPLE (1u << 24) /**< gl_context::Multisample */
4371 #define _NEW_TRACK_MATRIX (1u << 25) /**< gl_context::VertexProgram */
4372 #define _NEW_PROGRAM (1u << 26) /**< New program/shader state */
4373 #define _NEW_PROGRAM_CONSTANTS (1u << 27)
4375 #define _NEW_FRAG_CLAMP (1u << 29)
4376 /* gap, re-use for core Mesa state only; use ctx->DriverFlags otherwise */
4377 #define _NEW_VARYING_VP_INPUTS (1u << 31) /**< gl_context::varying_vp_inputs */
4383 * Composite state flags
4386 #define _NEW_TEXTURE (_NEW_TEXTURE_OBJECT | _NEW_TEXTURE_STATE)
4388 #define _MESA_NEW_NEED_EYE_COORDS (_NEW_LIGHT | \
4389 _NEW_TEXTURE_STATE | \
4394 #define _MESA_NEW_SEPARATE_SPECULAR (_NEW_LIGHT | \
4404 /* This has to be included here. */
4408 /** Opaque declaration of display list payload data type */
4409 union gl_dlist_node
;
4413 * Per-display list information.
4415 struct gl_display_list
4418 GLbitfield Flags
; /**< DLIST_x flags */
4419 GLchar
*Label
; /**< GL_KHR_debug */
4420 /** The dlist commands are in a linked list of nodes */
4421 union gl_dlist_node
*Head
;
4426 * State used during display list compilation and execution.
4428 struct gl_dlist_state
4430 struct gl_display_list
*CurrentList
; /**< List currently being compiled */
4431 union gl_dlist_node
*CurrentBlock
; /**< Pointer to current block of nodes */
4432 GLuint CurrentPos
; /**< Index into current block of nodes */
4433 GLuint CallDepth
; /**< Current recursion calling depth */
4435 GLvertexformat ListVtxfmt
;
4437 GLubyte ActiveAttribSize
[VERT_ATTRIB_MAX
];
4438 GLfloat CurrentAttrib
[VERT_ATTRIB_MAX
][4];
4440 GLubyte ActiveMaterialSize
[MAT_ATTRIB_MAX
];
4441 GLfloat CurrentMaterial
[MAT_ATTRIB_MAX
][4];
4444 /* State known to have been set by the currently-compiling display
4445 * list. Used to eliminate some redundant state changes.
4453 * These are a mapping of the GL_ARB_debug_output/GL_KHR_debug enums
4454 * to small enums suitable for use as an array index.
4457 enum mesa_debug_source
4459 MESA_DEBUG_SOURCE_API
,
4460 MESA_DEBUG_SOURCE_WINDOW_SYSTEM
,
4461 MESA_DEBUG_SOURCE_SHADER_COMPILER
,
4462 MESA_DEBUG_SOURCE_THIRD_PARTY
,
4463 MESA_DEBUG_SOURCE_APPLICATION
,
4464 MESA_DEBUG_SOURCE_OTHER
,
4465 MESA_DEBUG_SOURCE_COUNT
4468 enum mesa_debug_type
4470 MESA_DEBUG_TYPE_ERROR
,
4471 MESA_DEBUG_TYPE_DEPRECATED
,
4472 MESA_DEBUG_TYPE_UNDEFINED
,
4473 MESA_DEBUG_TYPE_PORTABILITY
,
4474 MESA_DEBUG_TYPE_PERFORMANCE
,
4475 MESA_DEBUG_TYPE_OTHER
,
4476 MESA_DEBUG_TYPE_MARKER
,
4477 MESA_DEBUG_TYPE_PUSH_GROUP
,
4478 MESA_DEBUG_TYPE_POP_GROUP
,
4479 MESA_DEBUG_TYPE_COUNT
4482 enum mesa_debug_severity
4484 MESA_DEBUG_SEVERITY_LOW
,
4485 MESA_DEBUG_SEVERITY_MEDIUM
,
4486 MESA_DEBUG_SEVERITY_HIGH
,
4487 MESA_DEBUG_SEVERITY_NOTIFICATION
,
4488 MESA_DEBUG_SEVERITY_COUNT
4494 * Driver-specific state flags.
4496 * These are or'd with gl_context::NewDriverState to notify a driver about
4497 * a state change. The driver sets the flags at context creation and
4498 * the meaning of the bits set is opaque to core Mesa.
4500 struct gl_driver_flags
4502 /** gl_context::Array::_DrawArrays (vertex array state) */
4505 /** gl_context::TransformFeedback::CurrentObject */
4506 uint64_t NewTransformFeedback
;
4508 /** gl_context::TransformFeedback::CurrentObject::shader_program */
4509 uint64_t NewTransformFeedbackProg
;
4511 /** gl_context::RasterDiscard */
4512 uint64_t NewRasterizerDiscard
;
4514 /** gl_context::TileRasterOrder* */
4515 uint64_t NewTileRasterOrder
;
4518 * gl_context::UniformBufferBindings
4519 * gl_shader_program::UniformBlocks
4521 uint64_t NewUniformBuffer
;
4524 * gl_context::ShaderStorageBufferBindings
4525 * gl_shader_program::ShaderStorageBlocks
4527 uint64_t NewShaderStorageBuffer
;
4529 uint64_t NewTextureBuffer
;
4532 * gl_context::AtomicBufferBindings
4534 uint64_t NewAtomicBuffer
;
4537 * gl_context::ImageUnits
4539 uint64_t NewImageUnits
;
4542 * gl_context::TessCtrlProgram::patch_default_*
4544 uint64_t NewDefaultTessLevels
;
4547 * gl_context::IntelConservativeRasterization
4549 uint64_t NewIntelConservativeRasterization
;
4552 * gl_context::Scissor::WindowRects
4554 uint64_t NewWindowRectangles
;
4556 /** gl_context::Color::sRGBEnabled */
4557 uint64_t NewFramebufferSRGB
;
4559 /** gl_context::Scissor::EnableFlags */
4560 uint64_t NewScissorTest
;
4562 /** gl_context::Scissor::ScissorArray */
4563 uint64_t NewScissorRect
;
4565 /** gl_context::Color::Alpha* */
4566 uint64_t NewAlphaTest
;
4568 /** gl_context::Color::Blend/Dither */
4571 /** gl_context::Color::BlendColor */
4572 uint64_t NewBlendColor
;
4574 /** gl_context::Color::Color/Index */
4575 uint64_t NewColorMask
;
4577 /** gl_context::Depth */
4580 /** gl_context::Color::LogicOp/ColorLogicOp/IndexLogicOp */
4581 uint64_t NewLogicOp
;
4583 /** gl_context::Multisample::Enabled */
4584 uint64_t NewMultisampleEnable
;
4586 /** gl_context::Multisample::SampleAlphaTo* */
4587 uint64_t NewSampleAlphaToXEnable
;
4589 /** gl_context::Multisample::SampleCoverage/SampleMaskValue */
4590 uint64_t NewSampleMask
;
4592 /** gl_context::Multisample::(Min)SampleShading */
4593 uint64_t NewSampleShading
;
4595 /** gl_context::Stencil */
4596 uint64_t NewStencil
;
4598 /** gl_context::Transform::ClipOrigin/ClipDepthMode */
4599 uint64_t NewClipControl
;
4601 /** gl_context::Transform::EyeUserPlane */
4602 uint64_t NewClipPlane
;
4604 /** gl_context::Transform::ClipPlanesEnabled */
4605 uint64_t NewClipPlaneEnable
;
4607 /** gl_context::Transform::DepthClamp */
4608 uint64_t NewDepthClamp
;
4610 /** gl_context::Line */
4611 uint64_t NewLineState
;
4613 /** gl_context::Polygon */
4614 uint64_t NewPolygonState
;
4616 /** gl_context::PolygonStipple */
4617 uint64_t NewPolygonStipple
;
4619 /** gl_context::ViewportArray */
4620 uint64_t NewViewport
;
4622 /** Shader constants (uniforms, program parameters, state constants) */
4623 uint64_t NewShaderConstants
[MESA_SHADER_STAGES
];
4626 struct gl_buffer_binding
4628 struct gl_buffer_object
*BufferObject
;
4629 /** Start of uniform block data in the buffer */
4631 /** Size of data allowed to be referenced from the buffer (in bytes) */
4634 * glBindBufferBase() indicates that the Size should be ignored and only
4635 * limited by the current size of the BufferObject.
4637 GLboolean AutomaticSize
;
4641 * ARB_shader_image_load_store image unit.
4643 struct gl_image_unit
4646 * Texture object bound to this unit.
4648 struct gl_texture_object
*TexObj
;
4651 * Level of the texture object bound to this unit.
4656 * \c GL_TRUE if the whole level is bound as an array of layers, \c
4657 * GL_FALSE if only some specific layer of the texture is bound.
4663 * Layer of the texture object bound to this unit as specified by the
4669 * Layer of the texture object bound to this unit, or zero if the
4670 * whole level is bound.
4675 * Access allowed to this texture image. Either \c GL_READ_ONLY,
4676 * \c GL_WRITE_ONLY or \c GL_READ_WRITE.
4681 * GL internal format that determines the interpretation of the
4682 * image memory when shader image operations are performed through
4688 * Mesa format corresponding to \c Format.
4690 mesa_format _ActualFormat
;
4695 * Shader subroutines storage
4697 struct gl_subroutine_index_binding
4703 struct gl_texture_handle_object
4705 struct gl_texture_object
*texObj
;
4706 struct gl_sampler_object
*sampObj
;
4710 struct gl_image_handle_object
4712 struct gl_image_unit imgObj
;
4716 struct gl_memory_object
4718 GLuint Name
; /**< hash table ID/name */
4719 GLboolean Immutable
; /**< denotes mutability state of parameters */
4720 GLboolean Dedicated
; /**< import memory from a dedicated allocation */
4724 * Mesa rendering context.
4726 * This is the central context data structure for Mesa. Almost all
4727 * OpenGL state is contained in this structure.
4728 * Think of this as a base class from which device drivers will derive
4733 /** State possibly shared with other contexts in the address space */
4734 struct gl_shared_state
*Shared
;
4736 /** \name API function pointer tables */
4741 * The current dispatch table for non-displaylist-saving execution, either
4742 * BeginEnd or OutsideBeginEnd
4744 struct _glapi_table
*Exec
;
4746 * The normal dispatch table for non-displaylist-saving, non-begin/end
4748 struct _glapi_table
*OutsideBeginEnd
;
4749 /** The dispatch table used between glNewList() and glEndList() */
4750 struct _glapi_table
*Save
;
4752 * The dispatch table used between glBegin() and glEnd() (outside of a
4753 * display list). Only valid functions between those two are set, which is
4754 * mostly just the set in a GLvertexformat struct.
4756 struct _glapi_table
*BeginEnd
;
4758 * Dispatch table for when a graphics reset has happened.
4760 struct _glapi_table
*ContextLost
;
4762 * Dispatch table used to marshal API calls from the client program to a
4763 * separate server thread. NULL if API calls are not being marshalled to
4766 struct _glapi_table
*MarshalExec
;
4768 * Dispatch table currently in use for fielding API calls from the client
4769 * program. If API calls are being marshalled to another thread, this ==
4770 * MarshalExec. Otherwise it == CurrentServerDispatch.
4772 struct _glapi_table
*CurrentClientDispatch
;
4775 * Dispatch table currently in use for performing API calls. == Save or
4778 struct _glapi_table
*CurrentServerDispatch
;
4782 struct glthread_state
*GLThread
;
4784 struct gl_config Visual
;
4785 struct gl_framebuffer
*DrawBuffer
; /**< buffer for writing */
4786 struct gl_framebuffer
*ReadBuffer
; /**< buffer for reading */
4787 struct gl_framebuffer
*WinSysDrawBuffer
; /**< set with MakeCurrent */
4788 struct gl_framebuffer
*WinSysReadBuffer
; /**< set with MakeCurrent */
4791 * Device driver function pointer table
4793 struct dd_function_table Driver
;
4795 /** Core/Driver constants */
4796 struct gl_constants Const
;
4798 /** \name The various 4x4 matrix stacks */
4800 struct gl_matrix_stack ModelviewMatrixStack
;
4801 struct gl_matrix_stack ProjectionMatrixStack
;
4802 struct gl_matrix_stack TextureMatrixStack
[MAX_TEXTURE_UNITS
];
4803 struct gl_matrix_stack ProgramMatrixStack
[MAX_PROGRAM_MATRICES
];
4804 struct gl_matrix_stack
*CurrentStack
; /**< Points to one of the above stacks */
4807 /** Combined modelview and projection matrix */
4808 GLmatrix _ModelProjectMatrix
;
4810 /** \name Display lists */
4811 struct gl_dlist_state ListState
;
4813 GLboolean ExecuteFlag
; /**< Execute GL commands? */
4814 GLboolean CompileFlag
; /**< Compile GL commands into display list? */
4816 /** Extension information */
4817 struct gl_extensions Extensions
;
4819 /** GL version integer, for example 31 for GL 3.1, or 20 for GLES 2.0. */
4821 char *VersionString
;
4823 /** \name State attribute stack (for glPush/PopAttrib) */
4825 GLuint AttribStackDepth
;
4826 struct gl_attrib_node
*AttribStack
[MAX_ATTRIB_STACK_DEPTH
];
4829 /** \name Renderer attribute groups
4831 * We define a struct for each attribute group to make pushing and popping
4832 * attributes easy. Also it's a good organization.
4835 struct gl_accum_attrib Accum
; /**< Accum buffer attributes */
4836 struct gl_colorbuffer_attrib Color
; /**< Color buffer attributes */
4837 struct gl_current_attrib Current
; /**< Current attributes */
4838 struct gl_depthbuffer_attrib Depth
; /**< Depth buffer attributes */
4839 struct gl_eval_attrib Eval
; /**< Eval attributes */
4840 struct gl_fog_attrib Fog
; /**< Fog attributes */
4841 struct gl_hint_attrib Hint
; /**< Hint attributes */
4842 struct gl_light_attrib Light
; /**< Light attributes */
4843 struct gl_line_attrib Line
; /**< Line attributes */
4844 struct gl_list_attrib List
; /**< List attributes */
4845 struct gl_multisample_attrib Multisample
;
4846 struct gl_pixel_attrib Pixel
; /**< Pixel attributes */
4847 struct gl_point_attrib Point
; /**< Point attributes */
4848 struct gl_polygon_attrib Polygon
; /**< Polygon attributes */
4849 GLuint PolygonStipple
[32]; /**< Polygon stipple */
4850 struct gl_scissor_attrib Scissor
; /**< Scissor attributes */
4851 struct gl_stencil_attrib Stencil
; /**< Stencil buffer attributes */
4852 struct gl_texture_attrib Texture
; /**< Texture attributes */
4853 struct gl_transform_attrib Transform
; /**< Transformation attributes */
4854 struct gl_viewport_attrib ViewportArray
[MAX_VIEWPORTS
]; /**< Viewport attributes */
4857 /** \name Client attribute stack */
4859 GLuint ClientAttribStackDepth
;
4860 struct gl_attrib_node
*ClientAttribStack
[MAX_CLIENT_ATTRIB_STACK_DEPTH
];
4863 /** \name Client attribute groups */
4865 struct gl_array_attrib Array
; /**< Vertex arrays */
4866 struct gl_pixelstore_attrib Pack
; /**< Pixel packing */
4867 struct gl_pixelstore_attrib Unpack
; /**< Pixel unpacking */
4868 struct gl_pixelstore_attrib DefaultPacking
; /**< Default params */
4871 /** \name Other assorted state (not pushed/popped on attribute stack) */
4873 struct gl_pixelmaps PixelMaps
;
4875 struct gl_evaluators EvalMap
; /**< All evaluators */
4876 struct gl_feedback Feedback
; /**< Feedback */
4877 struct gl_selection Select
; /**< Selection */
4879 struct gl_program_state Program
; /**< general program state */
4880 struct gl_vertex_program_state VertexProgram
;
4881 struct gl_fragment_program_state FragmentProgram
;
4882 struct gl_geometry_program_state GeometryProgram
;
4883 struct gl_compute_program_state ComputeProgram
;
4884 struct gl_tess_ctrl_program_state TessCtrlProgram
;
4885 struct gl_tess_eval_program_state TessEvalProgram
;
4886 struct gl_ati_fragment_shader_state ATIFragmentShader
;
4888 struct gl_pipeline_shader_state Pipeline
; /**< GLSL pipeline shader object state */
4889 struct gl_pipeline_object Shader
; /**< GLSL shader object state */
4892 * Current active shader pipeline state
4894 * Almost all internal users want ::_Shader instead of ::Shader. The
4895 * exceptions are bits of legacy GLSL API that do not know about separate
4898 * If a program is active via \c glUseProgram, this will point to
4901 * If a program pipeline is active via \c glBindProgramPipeline, this will
4902 * point to \c ::Pipeline.Current.
4904 * If neither a program nor a program pipeline is active, this will point to
4905 * \c ::Pipeline.Default. This ensures that \c ::_Shader will never be
4908 struct gl_pipeline_object
*_Shader
;
4910 struct gl_query_state Query
; /**< occlusion, timer queries */
4912 struct gl_transform_feedback_state TransformFeedback
;
4914 struct gl_perf_monitor_state PerfMonitor
;
4915 struct gl_perf_query_state PerfQuery
;
4917 struct gl_buffer_object
*DrawIndirectBuffer
; /** < GL_ARB_draw_indirect */
4918 struct gl_buffer_object
*ParameterBuffer
; /** < GL_ARB_indirect_parameters */
4919 struct gl_buffer_object
*DispatchIndirectBuffer
; /** < GL_ARB_compute_shader */
4921 struct gl_buffer_object
*CopyReadBuffer
; /**< GL_ARB_copy_buffer */
4922 struct gl_buffer_object
*CopyWriteBuffer
; /**< GL_ARB_copy_buffer */
4924 struct gl_buffer_object
*QueryBuffer
; /**< GL_ARB_query_buffer_object */
4927 * Current GL_ARB_uniform_buffer_object binding referenced by
4928 * GL_UNIFORM_BUFFER target for glBufferData, glMapBuffer, etc.
4930 struct gl_buffer_object
*UniformBuffer
;
4933 * Current GL_ARB_shader_storage_buffer_object binding referenced by
4934 * GL_SHADER_STORAGE_BUFFER target for glBufferData, glMapBuffer, etc.
4936 struct gl_buffer_object
*ShaderStorageBuffer
;
4939 * Array of uniform buffers for GL_ARB_uniform_buffer_object and GL 3.1.
4940 * This is set up using glBindBufferRange() or glBindBufferBase(). They are
4941 * associated with uniform blocks by glUniformBlockBinding()'s state in the
4944 struct gl_buffer_binding
4945 UniformBufferBindings
[MAX_COMBINED_UNIFORM_BUFFERS
];
4948 * Array of shader storage buffers for ARB_shader_storage_buffer_object
4949 * and GL 4.3. This is set up using glBindBufferRange() or
4950 * glBindBufferBase(). They are associated with shader storage blocks by
4951 * glShaderStorageBlockBinding()'s state in the shader program.
4953 struct gl_buffer_binding
4954 ShaderStorageBufferBindings
[MAX_COMBINED_SHADER_STORAGE_BUFFERS
];
4957 * Object currently associated with the GL_ATOMIC_COUNTER_BUFFER
4960 struct gl_buffer_object
*AtomicBuffer
;
4963 * Object currently associated w/ the GL_EXTERNAL_VIRTUAL_MEMORY_BUFFER_AMD
4966 struct gl_buffer_object
*ExternalVirtualMemoryBuffer
;
4969 * Array of atomic counter buffer binding points.
4971 struct gl_buffer_binding
4972 AtomicBufferBindings
[MAX_COMBINED_ATOMIC_BUFFERS
];
4975 * Array of image units for ARB_shader_image_load_store.
4977 struct gl_image_unit ImageUnits
[MAX_IMAGE_UNITS
];
4979 struct gl_subroutine_index_binding SubroutineIndex
[MESA_SHADER_STAGES
];
4982 struct gl_meta_state
*Meta
; /**< for "meta" operations */
4984 /* GL_EXT_framebuffer_object */
4985 struct gl_renderbuffer
*CurrentRenderbuffer
;
4987 GLenum ErrorValue
; /**< Last error code */
4990 * Recognize and silence repeated error debug messages in buggy apps.
4992 const char *ErrorDebugFmtString
;
4993 GLuint ErrorDebugCount
;
4995 /* GL_ARB_debug_output/GL_KHR_debug */
4996 simple_mtx_t DebugMutex
;
4997 struct gl_debug_state
*Debug
;
4999 GLenum RenderMode
; /**< either GL_RENDER, GL_SELECT, GL_FEEDBACK */
5000 GLbitfield NewState
; /**< bitwise-or of _NEW_* flags */
5001 uint64_t NewDriverState
; /**< bitwise-or of flags from DriverFlags */
5003 struct gl_driver_flags DriverFlags
;
5005 GLboolean ViewportInitialized
; /**< has viewport size been initialized? */
5007 GLbitfield varying_vp_inputs
; /**< mask of VERT_BIT_* flags */
5009 /** \name Derived state */
5010 GLbitfield _ImageTransferState
;/**< bitwise-or of IMAGE_*_BIT flags */
5011 GLfloat _EyeZDir
[3];
5012 GLfloat _ModelViewInvScale
; /* may be for model- or eyespace lighting */
5013 GLfloat _ModelViewInvScaleEyespace
; /* always factor defined in spec */
5014 GLboolean _NeedEyeCoords
;
5015 GLboolean _ForceEyeCoords
;
5017 GLuint TextureStateTimestamp
; /**< detect changes to shared state */
5019 struct gl_list_extensions
*ListExt
; /**< driver dlist extensions */
5021 /** \name For debugging/development only */
5023 GLboolean FirstTimeCurrent
;
5027 * False if this context was created without a config. This is needed
5028 * because the initial state of glDrawBuffers depends on this
5030 GLboolean HasConfig
;
5032 GLboolean TextureFormatSupported
[MESA_FORMAT_COUNT
];
5034 GLboolean RasterDiscard
; /**< GL_RASTERIZER_DISCARD */
5035 GLboolean IntelConservativeRasterization
; /**< GL_INTEL_CONSERVATIVE_RASTERIZATION */
5037 /** Does glVertexAttrib(0) alias glVertex()? */
5038 bool _AttribZeroAliasesVertex
;
5041 * When set, TileRasterOrderIncreasingX/Y control the order that a tiled
5042 * renderer's tiles should be excecuted, to meet the requirements of
5043 * GL_MESA_tile_raster_order.
5045 GLboolean TileRasterOrderFixed
;
5046 GLboolean TileRasterOrderIncreasingX
;
5047 GLboolean TileRasterOrderIncreasingY
;
5050 * \name Hooks for module contexts.
5052 * These will eventually live in the driver or elsewhere.
5055 void *swrast_context
;
5056 void *swsetup_context
;
5057 void *swtnl_context
;
5058 struct vbo_context
*vbo_context
;
5059 struct st_context
*st
;
5064 * \name NV_vdpau_interop
5067 const void *vdpDevice
;
5068 const void *vdpGetProcAddress
;
5069 struct set
*vdpSurfaces
;
5073 * Has this context observed a GPU reset in any context in the share group?
5075 * Once this field becomes true, it is never reset to false.
5077 GLboolean ShareGroupReset
;
5080 * \name OES_primitive_bounding_box
5082 * Stores the arguments to glPrimitiveBoundingBox
5084 GLfloat PrimitiveBoundingBox
[8];
5086 struct disk_cache
*Cache
;
5089 * \name GL_ARB_bindless_texture
5092 struct hash_table_u64
*ResidentTextureHandles
;
5093 struct hash_table_u64
*ResidentImageHandles
;
5098 * Information about memory usage. All sizes are in kilobytes.
5100 struct gl_memory_info
5102 unsigned total_device_memory
; /**< size of device memory, e.g. VRAM */
5103 unsigned avail_device_memory
; /**< free device memory at the moment */
5104 unsigned total_staging_memory
; /**< size of staging memory, e.g. GART */
5105 unsigned avail_staging_memory
; /**< free staging memory at the moment */
5106 unsigned device_memory_evicted
; /**< size of memory evicted (monotonic counter) */
5107 unsigned nr_device_memory_evictions
; /**< # of evictions (monotonic counter) */
5111 extern int MESA_VERBOSE
;
5112 extern int MESA_DEBUG_FLAGS
;
5113 # define MESA_FUNCTION __func__
5115 # define MESA_VERBOSE 0
5116 # define MESA_DEBUG_FLAGS 0
5117 # define MESA_FUNCTION "a function"
5121 /** The MESA_VERBOSE var is a bitmask of these flags */
5124 VERBOSE_VARRAY
= 0x0001,
5125 VERBOSE_TEXTURE
= 0x0002,
5126 VERBOSE_MATERIAL
= 0x0004,
5127 VERBOSE_PIPELINE
= 0x0008,
5128 VERBOSE_DRIVER
= 0x0010,
5129 VERBOSE_STATE
= 0x0020,
5130 VERBOSE_API
= 0x0040,
5131 VERBOSE_DISPLAY_LIST
= 0x0100,
5132 VERBOSE_LIGHTING
= 0x0200,
5133 VERBOSE_PRIMS
= 0x0400,
5134 VERBOSE_VERTS
= 0x0800,
5135 VERBOSE_DISASSEM
= 0x1000,
5136 VERBOSE_DRAW
= 0x2000,
5137 VERBOSE_SWAPBUFFERS
= 0x4000
5141 /** The MESA_DEBUG_FLAGS var is a bitmask of these flags */
5144 DEBUG_SILENT
= (1 << 0),
5145 DEBUG_ALWAYS_FLUSH
= (1 << 1),
5146 DEBUG_INCOMPLETE_TEXTURE
= (1 << 2),
5147 DEBUG_INCOMPLETE_FBO
= (1 << 3),
5148 DEBUG_CONTEXT
= (1 << 4)
5155 #endif /* MTYPES_H */