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 GLenum16 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 GLenum16 DrawBuffer
[MAX_DRAW_BUFFERS
]; /**< Which buffer to draw into */
467 * \name alpha testing
470 GLboolean AlphaEnabled
; /**< Alpha test enabled flag */
471 GLenum16 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 GLenum16 SrcRGB
; /**< RGB blend source term */
492 GLenum16 DstRGB
; /**< RGB blend dest term */
493 GLenum16 SrcA
; /**< Alpha blend source term */
494 GLenum16 DstA
; /**< Alpha blend dest term */
495 GLenum16 EquationRGB
; /**< GL_ADD, GL_SUBTRACT, etc. */
496 GLenum16 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 GLenum16 LogicOp
; /**< Logic operator */
528 enum gl_logicop_mode _LogicOp
;
531 GLboolean DitherFlag
; /**< Dither enable flag */
533 GLboolean _ClampFragmentColor
; /** < with GL_FIXED_ONLY_ARB resolved */
534 GLenum16 ClampFragmentColor
; /**< GL_TRUE, GL_FALSE or GL_FIXED_ONLY_ARB */
535 GLenum16 ClampReadColor
; /**< GL_TRUE, GL_FALSE or GL_FIXED_ONLY_ARB */
537 GLboolean sRGBEnabled
; /**< Framebuffer sRGB blending/updating requested */
542 * Current attribute group (GL_CURRENT_BIT).
544 struct gl_current_attrib
547 * \name Current vertex attributes (color, texcoords, etc).
548 * \note Values are valid only after FLUSH_VERTICES has been called.
549 * \note Index and Edgeflag current values are stored as floats in the
550 * SIX and SEVEN attribute slots.
551 * \note We need double storage for 64-bit vertex attributes
553 GLfloat Attrib
[VERT_ATTRIB_MAX
][4*2];
556 * \name Current raster position attributes (always up to date after a
559 GLfloat RasterPos
[4];
560 GLfloat RasterDistance
;
561 GLfloat RasterColor
[4];
562 GLfloat RasterSecondaryColor
[4];
563 GLfloat RasterTexCoords
[MAX_TEXTURE_COORD_UNITS
][4];
564 GLboolean RasterPosValid
;
569 * Depth buffer attribute group (GL_DEPTH_BUFFER_BIT).
571 struct gl_depthbuffer_attrib
573 GLenum16 Func
; /**< Function for depth buffer compare */
574 GLclampd Clear
; /**< Value to clear depth buffer to */
575 GLboolean Test
; /**< Depth buffering enabled flag */
576 GLboolean Mask
; /**< Depth buffer writable? */
577 GLboolean BoundsTest
; /**< GL_EXT_depth_bounds_test */
578 GLfloat BoundsMin
, BoundsMax
;/**< GL_EXT_depth_bounds_test */
583 * Evaluator attribute group (GL_EVAL_BIT).
585 struct gl_eval_attrib
591 GLboolean Map1Color4
;
593 GLboolean Map1Normal
;
594 GLboolean Map1TextureCoord1
;
595 GLboolean Map1TextureCoord2
;
596 GLboolean Map1TextureCoord3
;
597 GLboolean Map1TextureCoord4
;
598 GLboolean Map1Vertex3
;
599 GLboolean Map1Vertex4
;
600 GLboolean Map2Color4
;
602 GLboolean Map2Normal
;
603 GLboolean Map2TextureCoord1
;
604 GLboolean Map2TextureCoord2
;
605 GLboolean Map2TextureCoord3
;
606 GLboolean Map2TextureCoord4
;
607 GLboolean Map2Vertex3
;
608 GLboolean Map2Vertex4
;
609 GLboolean AutoNormal
;
613 * \name Map Grid endpoints and divisions and calculated du values
617 GLfloat MapGrid1u1
, MapGrid1u2
, MapGrid1du
;
618 GLint MapGrid2un
, MapGrid2vn
;
619 GLfloat MapGrid2u1
, MapGrid2u2
, MapGrid2du
;
620 GLfloat MapGrid2v1
, MapGrid2v2
, MapGrid2dv
;
626 * Compressed fog mode.
638 * Fog attribute group (GL_FOG_BIT).
642 GLboolean Enabled
; /**< Fog enabled flag */
643 GLboolean ColorSumEnabled
;
644 uint8_t _PackedMode
; /**< Fog mode as 2 bits */
645 uint8_t _PackedEnabledMode
; /**< Masked CompressedMode */
646 GLfloat ColorUnclamped
[4]; /**< Fog color */
647 GLfloat Color
[4]; /**< Fog color */
648 GLfloat Density
; /**< Density >= 0.0 */
649 GLfloat Start
; /**< Start distance in eye coords */
650 GLfloat End
; /**< End distance in eye coords */
651 GLfloat Index
; /**< Fog index */
652 GLenum16 Mode
; /**< Fog mode */
653 GLenum16 FogCoordinateSource
;/**< GL_EXT_fog_coord */
654 GLenum16 FogDistanceMode
; /**< GL_NV_fog_distance */
659 * Hint attribute group (GL_HINT_BIT).
661 * Values are always one of GL_FASTEST, GL_NICEST, or GL_DONT_CARE.
663 struct gl_hint_attrib
665 GLenum16 PerspectiveCorrection
;
666 GLenum16 PointSmooth
;
668 GLenum16 PolygonSmooth
;
670 GLenum16 TextureCompression
; /**< GL_ARB_texture_compression */
671 GLenum16 GenerateMipmap
; /**< GL_SGIS_generate_mipmap */
672 GLenum16 FragmentShaderDerivative
; /**< GL_ARB_fragment_shader */
677 * Lighting attribute group (GL_LIGHT_BIT).
679 struct gl_light_attrib
681 struct gl_light Light
[MAX_LIGHTS
]; /**< Array of light sources */
682 struct gl_lightmodel Model
; /**< Lighting model */
685 * Front and back material values.
686 * Note: must call FLUSH_VERTICES() before using.
688 struct gl_material Material
;
690 GLboolean Enabled
; /**< Lighting enabled flag */
691 GLboolean ColorMaterialEnabled
;
693 GLenum16 ShadeModel
; /**< GL_FLAT or GL_SMOOTH */
694 GLenum16 ProvokingVertex
; /**< GL_EXT_provoking_vertex */
695 GLenum16 ColorMaterialFace
; /**< GL_FRONT, BACK or FRONT_AND_BACK */
696 GLenum16 ColorMaterialMode
; /**< GL_AMBIENT, GL_DIFFUSE, etc */
697 GLbitfield _ColorMaterialBitmask
; /**< bitmask formed from Face and Mode */
700 GLboolean _ClampVertexColor
;
701 GLenum16 ClampVertexColor
; /**< GL_TRUE, GL_FALSE, GL_FIXED_ONLY */
704 * Derived state for optimizations:
707 GLbitfield _EnabledLights
; /**< bitmask containing enabled lights */
709 GLboolean _NeedEyeCoords
;
710 GLboolean _NeedVertices
; /**< Use fast shader? */
712 GLfloat _BaseColor
[2][3];
718 * Line attribute group (GL_LINE_BIT).
720 struct gl_line_attrib
722 GLboolean SmoothFlag
; /**< GL_LINE_SMOOTH enabled? */
723 GLboolean StippleFlag
; /**< GL_LINE_STIPPLE enabled? */
724 GLushort StipplePattern
; /**< Stipple pattern */
725 GLint StippleFactor
; /**< Stipple repeat factor */
726 GLfloat Width
; /**< Line width */
731 * Display list attribute group (GL_LIST_BIT).
733 struct gl_list_attrib
740 * Multisample attribute group (GL_MULTISAMPLE_BIT).
742 struct gl_multisample_attrib
745 GLboolean SampleAlphaToCoverage
;
746 GLboolean SampleAlphaToOne
;
747 GLboolean SampleCoverage
;
748 GLboolean SampleCoverageInvert
;
749 GLboolean SampleShading
;
751 /* ARB_texture_multisample / GL3.2 additions */
752 GLboolean SampleMask
;
754 GLfloat SampleCoverageValue
; /**< In range [0, 1] */
755 GLfloat MinSampleShadingValue
; /**< In range [0, 1] */
757 /** The GL spec defines this as an array but >32x MSAA is madness */
758 GLbitfield SampleMaskValue
;
763 * A pixelmap (see glPixelMap)
768 GLfloat Map
[MAX_PIXEL_MAP_TABLE
];
773 * Collection of all pixelmaps
777 struct gl_pixelmap RtoR
; /**< i.e. GL_PIXEL_MAP_R_TO_R */
778 struct gl_pixelmap GtoG
;
779 struct gl_pixelmap BtoB
;
780 struct gl_pixelmap AtoA
;
781 struct gl_pixelmap ItoR
;
782 struct gl_pixelmap ItoG
;
783 struct gl_pixelmap ItoB
;
784 struct gl_pixelmap ItoA
;
785 struct gl_pixelmap ItoI
;
786 struct gl_pixelmap StoS
;
791 * Pixel attribute group (GL_PIXEL_MODE_BIT).
793 struct gl_pixel_attrib
795 GLenum16 ReadBuffer
; /**< source buffer for glRead/CopyPixels() */
797 /*--- Begin Pixel Transfer State ---*/
798 /* Fields are in the order in which they're applied... */
800 /** Scale & Bias (index shift, offset) */
802 GLfloat RedBias
, RedScale
;
803 GLfloat GreenBias
, GreenScale
;
804 GLfloat BlueBias
, BlueScale
;
805 GLfloat AlphaBias
, AlphaScale
;
806 GLfloat DepthBias
, DepthScale
;
807 GLint IndexShift
, IndexOffset
;
811 /* Note: actual pixel maps are not part of this attrib group */
812 GLboolean MapColorFlag
;
813 GLboolean MapStencilFlag
;
815 /*--- End Pixel Transfer State ---*/
818 GLfloat ZoomX
, ZoomY
;
823 * Point attribute group (GL_POINT_BIT).
825 struct gl_point_attrib
827 GLfloat Size
; /**< User-specified point size */
828 GLfloat Params
[3]; /**< GL_EXT_point_parameters */
829 GLfloat MinSize
, MaxSize
; /**< GL_EXT_point_parameters */
830 GLfloat Threshold
; /**< GL_EXT_point_parameters */
831 GLboolean SmoothFlag
; /**< True if GL_POINT_SMOOTH is enabled */
832 GLboolean _Attenuated
; /**< True if Params != [1, 0, 0] */
833 GLboolean PointSprite
; /**< GL_NV/ARB_point_sprite */
834 GLbitfield CoordReplace
; /**< GL_ARB_point_sprite*/
835 GLenum16 SpriteRMode
; /**< GL_NV_point_sprite (only!) */
836 GLenum16 SpriteOrigin
; /**< GL_ARB_point_sprite */
841 * Polygon attribute group (GL_POLYGON_BIT).
843 struct gl_polygon_attrib
845 GLenum16 FrontFace
; /**< Either GL_CW or GL_CCW */
846 GLenum FrontMode
; /**< Either GL_POINT, GL_LINE or GL_FILL */
847 GLenum BackMode
; /**< Either GL_POINT, GL_LINE or GL_FILL */
848 GLboolean CullFlag
; /**< Culling on/off flag */
849 GLboolean SmoothFlag
; /**< True if GL_POLYGON_SMOOTH is enabled */
850 GLboolean StippleFlag
; /**< True if GL_POLYGON_STIPPLE is enabled */
851 GLenum16 CullFaceMode
; /**< Culling mode GL_FRONT or GL_BACK */
852 GLfloat OffsetFactor
; /**< Polygon offset factor, from user */
853 GLfloat OffsetUnits
; /**< Polygon offset units, from user */
854 GLfloat OffsetClamp
; /**< Polygon offset clamp, from user */
855 GLboolean OffsetPoint
; /**< Offset in GL_POINT mode */
856 GLboolean OffsetLine
; /**< Offset in GL_LINE mode */
857 GLboolean OffsetFill
; /**< Offset in GL_FILL mode */
862 * Scissor attributes (GL_SCISSOR_BIT).
864 struct gl_scissor_rect
866 GLint X
, Y
; /**< Lower left corner of box */
867 GLsizei Width
, Height
; /**< Size of box */
871 struct gl_scissor_attrib
873 GLbitfield EnableFlags
; /**< Scissor test enabled? */
874 struct gl_scissor_rect ScissorArray
[MAX_VIEWPORTS
];
875 GLint NumWindowRects
; /**< Count of enabled window rectangles */
876 GLenum16 WindowRectMode
; /**< Whether to include or exclude the rects */
877 struct gl_scissor_rect WindowRects
[MAX_WINDOW_RECTANGLES
];
882 * Stencil attribute group (GL_STENCIL_BUFFER_BIT).
884 * Three sets of stencil data are tracked so that OpenGL 2.0,
885 * GL_EXT_stencil_two_side, and GL_ATI_separate_stencil can all be supported
886 * simultaneously. In each of the stencil state arrays, element 0 corresponds
887 * to GL_FRONT. Element 1 corresponds to the OpenGL 2.0 /
888 * GL_ATI_separate_stencil GL_BACK state. Element 2 corresponds to the
889 * GL_EXT_stencil_two_side GL_BACK state.
891 * The derived value \c _BackFace is either 1 or 2 depending on whether or
892 * not GL_STENCIL_TEST_TWO_SIDE_EXT is enabled.
894 * The derived value \c _TestTwoSide is set when the front-face and back-face
895 * stencil state are different.
897 struct gl_stencil_attrib
899 GLboolean Enabled
; /**< Enabled flag */
900 GLboolean TestTwoSide
; /**< GL_EXT_stencil_two_side */
901 GLubyte ActiveFace
; /**< GL_EXT_stencil_two_side (0 or 2) */
902 GLubyte _BackFace
; /**< Current back stencil state (1 or 2) */
903 GLenum16 Function
[3]; /**< Stencil function */
904 GLenum16 FailFunc
[3]; /**< Fail function */
905 GLenum16 ZPassFunc
[3]; /**< Depth buffer pass function */
906 GLenum16 ZFailFunc
[3]; /**< Depth buffer fail function */
907 GLint Ref
[3]; /**< Reference value */
908 GLuint ValueMask
[3]; /**< Value mask */
909 GLuint WriteMask
[3]; /**< Write mask */
910 GLuint Clear
; /**< Clear value */
915 * An index for each type of texture object. These correspond to the GL
916 * texture target enums, such as GL_TEXTURE_2D, GL_TEXTURE_CUBE_MAP, etc.
917 * Note: the order is from highest priority to lowest priority.
921 TEXTURE_2D_MULTISAMPLE_INDEX
,
922 TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX
,
923 TEXTURE_CUBE_ARRAY_INDEX
,
924 TEXTURE_BUFFER_INDEX
,
925 TEXTURE_2D_ARRAY_INDEX
,
926 TEXTURE_1D_ARRAY_INDEX
,
927 TEXTURE_EXTERNAL_INDEX
,
938 * Bit flags for each type of texture object
941 #define TEXTURE_2D_MULTISAMPLE_BIT (1 << TEXTURE_2D_MULTISAMPLE_INDEX)
942 #define TEXTURE_2D_MULTISAMPLE_ARRAY_BIT (1 << TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX)
943 #define TEXTURE_CUBE_ARRAY_BIT (1 << TEXTURE_CUBE_ARRAY_INDEX)
944 #define TEXTURE_BUFFER_BIT (1 << TEXTURE_BUFFER_INDEX)
945 #define TEXTURE_2D_ARRAY_BIT (1 << TEXTURE_2D_ARRAY_INDEX)
946 #define TEXTURE_1D_ARRAY_BIT (1 << TEXTURE_1D_ARRAY_INDEX)
947 #define TEXTURE_EXTERNAL_BIT (1 << TEXTURE_EXTERNAL_INDEX)
948 #define TEXTURE_CUBE_BIT (1 << TEXTURE_CUBE_INDEX)
949 #define TEXTURE_3D_BIT (1 << TEXTURE_3D_INDEX)
950 #define TEXTURE_RECT_BIT (1 << TEXTURE_RECT_INDEX)
951 #define TEXTURE_2D_BIT (1 << TEXTURE_2D_INDEX)
952 #define TEXTURE_1D_BIT (1 << TEXTURE_1D_INDEX)
957 * Texture image state. Drivers will typically create a subclass of this
958 * with extra fields for memory buffers, etc.
960 struct gl_texture_image
962 GLint InternalFormat
; /**< Internal format as given by the user */
963 GLenum _BaseFormat
; /**< Either GL_RGB, GL_RGBA, GL_ALPHA,
964 * GL_LUMINANCE, GL_LUMINANCE_ALPHA,
965 * GL_INTENSITY, GL_DEPTH_COMPONENT or
966 * GL_DEPTH_STENCIL_EXT only. Used for
967 * choosing TexEnv arithmetic.
969 mesa_format TexFormat
; /**< The actual texture memory format */
971 GLuint Border
; /**< 0 or 1 */
972 GLuint Width
; /**< = 2^WidthLog2 + 2*Border */
973 GLuint Height
; /**< = 2^HeightLog2 + 2*Border */
974 GLuint Depth
; /**< = 2^DepthLog2 + 2*Border */
975 GLuint Width2
; /**< = Width - 2*Border */
976 GLuint Height2
; /**< = Height - 2*Border */
977 GLuint Depth2
; /**< = Depth - 2*Border */
978 GLuint WidthLog2
; /**< = log2(Width2) */
979 GLuint HeightLog2
; /**< = log2(Height2) */
980 GLuint DepthLog2
; /**< = log2(Depth2) */
981 GLuint MaxNumLevels
; /**< = maximum possible number of mipmap
982 levels, computed from the dimensions */
984 struct gl_texture_object
*TexObject
; /**< Pointer back to parent object */
985 GLuint Level
; /**< Which mipmap level am I? */
986 /** Cube map face: index into gl_texture_object::Image[] array */
989 /** GL_ARB_texture_multisample */
990 GLuint NumSamples
; /**< Sample count, or 0 for non-multisample */
991 GLboolean FixedSampleLocations
; /**< Same sample locations for all pixels? */
996 * Indexes for cube map faces.
1011 * Sampler object state. These objects are new with GL_ARB_sampler_objects
1012 * and OpenGL 3.3. Legacy texture objects also contain a sampler object.
1014 struct gl_sampler_object
1019 GLchar
*Label
; /**< GL_KHR_debug */
1021 GLenum16 WrapS
; /**< S-axis texture image wrap mode */
1022 GLenum16 WrapT
; /**< T-axis texture image wrap mode */
1023 GLenum16 WrapR
; /**< R-axis texture image wrap mode */
1024 GLenum16 MinFilter
; /**< minification filter */
1025 GLenum16 MagFilter
; /**< magnification filter */
1026 union gl_color_union BorderColor
; /**< Interpreted according to texture format */
1027 GLfloat MinLod
; /**< min lambda, OpenGL 1.2 */
1028 GLfloat MaxLod
; /**< max lambda, OpenGL 1.2 */
1029 GLfloat LodBias
; /**< OpenGL 1.4 */
1030 GLfloat MaxAnisotropy
; /**< GL_EXT_texture_filter_anisotropic */
1031 GLenum16 CompareMode
; /**< GL_ARB_shadow */
1032 GLenum16 CompareFunc
; /**< GL_ARB_shadow */
1033 GLenum16 sRGBDecode
; /**< GL_DECODE_EXT or GL_SKIP_DECODE_EXT */
1034 GLboolean CubeMapSeamless
; /**< GL_AMD_seamless_cubemap_per_texture */
1036 /** GL_ARB_bindless_texture */
1037 bool HandleAllocated
;
1038 struct util_dynarray Handles
;
1043 * Texture object state. Contains the array of mipmap images, border color,
1044 * wrap modes, filter modes, and shadow/texcompare state.
1046 struct gl_texture_object
1048 simple_mtx_t Mutex
; /**< for thread safety */
1049 GLint RefCount
; /**< reference count */
1050 GLuint Name
; /**< the user-visible texture object ID */
1051 GLchar
*Label
; /**< GL_KHR_debug */
1052 GLenum16 Target
; /**< GL_TEXTURE_1D, GL_TEXTURE_2D, etc. */
1053 gl_texture_index TargetIndex
; /**< The gl_texture_unit::CurrentTex index.
1054 Only valid when Target is valid. */
1056 struct gl_sampler_object Sampler
;
1058 GLenum16 DepthMode
; /**< GL_ARB_depth_texture */
1060 GLfloat Priority
; /**< in [0,1] */
1061 GLint BaseLevel
; /**< min mipmap level, OpenGL 1.2 */
1062 GLint MaxLevel
; /**< max mipmap level, OpenGL 1.2 */
1063 GLint ImmutableLevels
; /**< ES 3.0 / ARB_texture_view */
1064 GLint _MaxLevel
; /**< actual max mipmap level (q in the spec) */
1065 GLfloat _MaxLambda
; /**< = _MaxLevel - BaseLevel (q - p in spec) */
1066 GLint CropRect
[4]; /**< GL_OES_draw_texture */
1067 GLenum Swizzle
[4]; /**< GL_EXT_texture_swizzle */
1068 GLuint _Swizzle
; /**< same as Swizzle, but SWIZZLE_* format */
1069 GLboolean GenerateMipmap
; /**< GL_SGIS_generate_mipmap */
1070 GLboolean _BaseComplete
; /**< Is the base texture level valid? */
1071 GLboolean _MipmapComplete
; /**< Is the whole mipmap valid? */
1072 GLboolean _IsIntegerFormat
; /**< Does the texture store integer values? */
1073 GLboolean _RenderToTexture
; /**< Any rendering to this texture? */
1074 GLboolean Purgeable
; /**< Is the buffer purgeable under memory
1076 GLboolean Immutable
; /**< GL_ARB_texture_storage */
1077 GLboolean _IsFloat
; /**< GL_OES_float_texture */
1078 GLboolean _IsHalfFloat
; /**< GL_OES_half_float_texture */
1079 bool StencilSampling
; /**< Should we sample stencil instead of depth? */
1080 bool HandleAllocated
; /**< GL_ARB_bindless_texture */
1082 GLuint MinLevel
; /**< GL_ARB_texture_view */
1083 GLuint MinLayer
; /**< GL_ARB_texture_view */
1084 GLuint NumLevels
; /**< GL_ARB_texture_view */
1085 GLuint NumLayers
; /**< GL_ARB_texture_view */
1087 /** GL_EXT_memory_object */
1088 GLenum16 TextureTiling
;
1090 /** Actual texture images, indexed by [cube face] and [mipmap level] */
1091 struct gl_texture_image
*Image
[MAX_FACES
][MAX_TEXTURE_LEVELS
];
1093 /** GL_ARB_texture_buffer_object */
1094 struct gl_buffer_object
*BufferObject
;
1095 GLenum16 BufferObjectFormat
;
1096 /** Equivalent Mesa format for BufferObjectFormat. */
1097 mesa_format _BufferObjectFormat
;
1098 /** GL_ARB_texture_buffer_range */
1099 GLintptr BufferOffset
;
1100 GLsizeiptr BufferSize
; /**< if this is -1, use BufferObject->Size instead */
1102 /** GL_OES_EGL_image_external */
1103 GLint RequiredTextureImageUnits
;
1105 /** GL_ARB_shader_image_load_store */
1106 GLenum16 ImageFormatCompatibilityType
;
1108 /** GL_ARB_bindless_texture */
1109 struct util_dynarray SamplerHandles
;
1110 struct util_dynarray ImageHandles
;
1114 /** Up to four combiner sources are possible with GL_NV_texture_env_combine4 */
1115 #define MAX_COMBINER_TERMS 4
1119 * Texture combine environment state.
1121 struct gl_tex_env_combine_state
1123 GLenum16 ModeRGB
; /**< GL_REPLACE, GL_DECAL, GL_ADD, etc. */
1124 GLenum16 ModeA
; /**< GL_REPLACE, GL_DECAL, GL_ADD, etc. */
1125 /** Source terms: GL_PRIMARY_COLOR, GL_TEXTURE, etc */
1126 GLenum16 SourceRGB
[MAX_COMBINER_TERMS
];
1127 GLenum16 SourceA
[MAX_COMBINER_TERMS
];
1128 /** Source operands: GL_SRC_COLOR, GL_ONE_MINUS_SRC_COLOR, etc */
1129 GLenum16 OperandRGB
[MAX_COMBINER_TERMS
];
1130 GLenum16 OperandA
[MAX_COMBINER_TERMS
];
1131 GLuint ScaleShiftRGB
; /**< 0, 1 or 2 */
1132 GLuint ScaleShiftA
; /**< 0, 1 or 2 */
1133 GLuint _NumArgsRGB
; /**< Number of inputs used for the RGB combiner */
1134 GLuint _NumArgsA
; /**< Number of inputs used for the A combiner */
1138 /** Compressed TexEnv effective Combine mode */
1139 enum gl_tex_env_mode
1141 TEXENV_MODE_REPLACE
, /* r = a0 */
1142 TEXENV_MODE_MODULATE
, /* r = a0 * a1 */
1143 TEXENV_MODE_ADD
, /* r = a0 + a1 */
1144 TEXENV_MODE_ADD_SIGNED
, /* r = a0 + a1 - 0.5 */
1145 TEXENV_MODE_INTERPOLATE
, /* r = a0 * a2 + a1 * (1 - a2) */
1146 TEXENV_MODE_SUBTRACT
, /* r = a0 - a1 */
1147 TEXENV_MODE_DOT3_RGB
, /* r = a0 . a1 */
1148 TEXENV_MODE_DOT3_RGB_EXT
, /* r = a0 . a1 */
1149 TEXENV_MODE_DOT3_RGBA
, /* r = a0 . a1 */
1150 TEXENV_MODE_DOT3_RGBA_EXT
, /* r = a0 . a1 */
1151 TEXENV_MODE_MODULATE_ADD_ATI
, /* r = a0 * a2 + a1 */
1152 TEXENV_MODE_MODULATE_SIGNED_ADD_ATI
, /* r = a0 * a2 + a1 - 0.5 */
1153 TEXENV_MODE_MODULATE_SUBTRACT_ATI
, /* r = a0 * a2 - a1 */
1154 TEXENV_MODE_ADD_PRODUCTS_NV
, /* r = a0 * a1 + a2 * a3 */
1155 TEXENV_MODE_ADD_PRODUCTS_SIGNED_NV
, /* r = a0 * a1 + a2 * a3 - 0.5 */
1159 /** Compressed TexEnv Combine source */
1160 enum gl_tex_env_source
1162 TEXENV_SRC_TEXTURE0
,
1163 TEXENV_SRC_TEXTURE1
,
1164 TEXENV_SRC_TEXTURE2
,
1165 TEXENV_SRC_TEXTURE3
,
1166 TEXENV_SRC_TEXTURE4
,
1167 TEXENV_SRC_TEXTURE5
,
1168 TEXENV_SRC_TEXTURE6
,
1169 TEXENV_SRC_TEXTURE7
,
1171 TEXENV_SRC_PREVIOUS
,
1172 TEXENV_SRC_PRIMARY_COLOR
,
1173 TEXENV_SRC_CONSTANT
,
1179 /** Compressed TexEnv Combine operand */
1180 enum gl_tex_env_operand
1183 TEXENV_OPR_ONE_MINUS_COLOR
,
1185 TEXENV_OPR_ONE_MINUS_ALPHA
,
1189 /** Compressed TexEnv Combine argument */
1190 struct gl_tex_env_argument
1193 __extension__
uint8_t Source
:4; /**< TEXENV_SRC_x */
1194 __extension__
uint8_t Operand
:2; /**< TEXENV_OPR_x */
1196 uint8_t Source
; /**< SRC_x */
1197 uint8_t Operand
; /**< OPR_x */
1203 * Compressed TexEnv Combine state.
1205 struct gl_tex_env_combine_packed
1207 uint32_t ModeRGB
:4; /**< Effective mode for RGB as 4 bits */
1208 uint32_t ModeA
:4; /**< Effective mode for RGB as 4 bits */
1209 uint32_t ScaleShiftRGB
:2; /**< 0, 1 or 2 */
1210 uint32_t ScaleShiftA
:2; /**< 0, 1 or 2 */
1211 uint32_t NumArgsRGB
:3; /**< Number of inputs used for the RGB combiner */
1212 uint32_t NumArgsA
:3; /**< Number of inputs used for the A combiner */
1213 /** Source arguments in a packed manner */
1214 struct gl_tex_env_argument ArgsRGB
[MAX_COMBINER_TERMS
];
1215 struct gl_tex_env_argument ArgsA
[MAX_COMBINER_TERMS
];
1220 * TexGenEnabled flags.
1227 #define STR_BITS (S_BIT | T_BIT | R_BIT)
1232 * Bit flag versions of the corresponding GL_ constants.
1235 #define TEXGEN_SPHERE_MAP 0x1
1236 #define TEXGEN_OBJ_LINEAR 0x2
1237 #define TEXGEN_EYE_LINEAR 0x4
1238 #define TEXGEN_REFLECTION_MAP_NV 0x8
1239 #define TEXGEN_NORMAL_MAP_NV 0x10
1241 #define TEXGEN_NEED_NORMALS (TEXGEN_SPHERE_MAP | \
1242 TEXGEN_REFLECTION_MAP_NV | \
1243 TEXGEN_NORMAL_MAP_NV)
1244 #define TEXGEN_NEED_EYE_COORD (TEXGEN_SPHERE_MAP | \
1245 TEXGEN_REFLECTION_MAP_NV | \
1246 TEXGEN_NORMAL_MAP_NV | \
1252 /** Tex-gen enabled for texture unit? */
1253 #define ENABLE_TEXGEN(unit) (1 << (unit))
1255 /** Non-identity texture matrix for texture unit? */
1256 #define ENABLE_TEXMAT(unit) (1 << (unit))
1260 * Texture coord generation state.
1264 GLenum16 Mode
; /**< GL_EYE_LINEAR, GL_SPHERE_MAP, etc */
1265 GLbitfield _ModeBit
; /**< TEXGEN_x bit corresponding to Mode */
1266 GLfloat ObjectPlane
[4];
1267 GLfloat EyePlane
[4];
1272 * Texture unit state. Contains enable flags, texture environment/function/
1273 * combiners, texgen state, and pointers to current texture objects.
1275 struct gl_texture_unit
1277 GLbitfield Enabled
; /**< bitmask of TEXTURE_*_BIT flags */
1279 GLenum16 EnvMode
; /**< GL_MODULATE, GL_DECAL, GL_BLEND, etc. */
1280 GLclampf EnvColor
[4];
1281 GLfloat EnvColorUnclamped
[4];
1283 struct gl_texgen GenS
;
1284 struct gl_texgen GenT
;
1285 struct gl_texgen GenR
;
1286 struct gl_texgen GenQ
;
1287 GLbitfield TexGenEnabled
; /**< Bitwise-OR of [STRQ]_BIT values */
1288 GLbitfield _GenFlags
; /**< Bitwise-OR of Gen[STRQ]._ModeBit */
1290 GLfloat LodBias
; /**< for biasing mipmap levels */
1292 /** Texture targets that have a non-default texture bound */
1293 GLbitfield _BoundTextures
;
1295 /** Current sampler object (GL_ARB_sampler_objects) */
1296 struct gl_sampler_object
*Sampler
;
1299 * \name GL_EXT_texture_env_combine
1301 struct gl_tex_env_combine_state Combine
;
1304 * Derived state based on \c EnvMode and the \c BaseFormat of the
1305 * currently enabled texture.
1307 struct gl_tex_env_combine_state _EnvMode
;
1310 * Currently enabled combiner state. This will point to either
1311 * \c Combine or \c _EnvMode.
1313 struct gl_tex_env_combine_state
*_CurrentCombine
;
1315 /** Current texture object pointers */
1316 struct gl_texture_object
*CurrentTex
[NUM_TEXTURE_TARGETS
];
1318 /** Points to highest priority, complete and enabled texture object */
1319 struct gl_texture_object
*_Current
;
1321 /** Current compressed TexEnv & Combine state */
1322 struct gl_tex_env_combine_packed _CurrentCombinePacked
;
1327 * Texture attribute group (GL_TEXTURE_BIT).
1329 struct gl_texture_attrib
1331 GLuint CurrentUnit
; /**< GL_ACTIVE_TEXTURE */
1333 /** GL_ARB_seamless_cubemap */
1334 GLboolean CubeMapSeamless
;
1336 struct gl_texture_object
*ProxyTex
[NUM_TEXTURE_TARGETS
];
1338 /** GL_ARB_texture_buffer_object */
1339 struct gl_buffer_object
*BufferObject
;
1341 /** Texture coord units/sets used for fragment texturing */
1342 GLbitfield _EnabledCoordUnits
;
1344 /** Texture coord units that have texgen enabled */
1345 GLbitfield _TexGenEnabled
;
1347 /** Texture coord units that have non-identity matrices */
1348 GLbitfield _TexMatEnabled
;
1350 /** Bitwise-OR of all Texture.Unit[i]._GenFlags */
1351 GLbitfield _GenFlags
;
1353 /** Largest index of a texture unit with _Current != NULL. */
1354 GLint _MaxEnabledTexImageUnit
;
1356 /** Largest index + 1 of texture units that have had any CurrentTex set. */
1357 GLint NumCurrentTexUsed
;
1359 struct gl_texture_unit Unit
[MAX_COMBINED_TEXTURE_IMAGE_UNITS
];
1364 * Data structure representing a single clip plane (e.g. one of the elements
1365 * of the ctx->Transform.EyeUserPlane or ctx->Transform._ClipUserPlane array).
1367 typedef GLfloat gl_clip_plane
[4];
1371 * Transformation attribute group (GL_TRANSFORM_BIT).
1373 struct gl_transform_attrib
1375 GLenum16 MatrixMode
; /**< Matrix mode */
1376 gl_clip_plane EyeUserPlane
[MAX_CLIP_PLANES
]; /**< User clip planes */
1377 gl_clip_plane _ClipUserPlane
[MAX_CLIP_PLANES
]; /**< derived */
1378 GLbitfield ClipPlanesEnabled
; /**< on/off bitmask */
1379 GLboolean Normalize
; /**< Normalize all normals? */
1380 GLboolean RescaleNormals
; /**< GL_EXT_rescale_normal */
1381 GLboolean RasterPositionUnclipped
; /**< GL_IBM_rasterpos_clip */
1382 GLboolean DepthClamp
; /**< GL_ARB_depth_clamp */
1383 /** GL_ARB_clip_control */
1384 GLenum16 ClipOrigin
; /**< GL_LOWER_LEFT or GL_UPPER_LEFT */
1385 GLenum16 ClipDepthMode
;/**< GL_NEGATIVE_ONE_TO_ONE or GL_ZERO_TO_ONE */
1390 * Viewport attribute group (GL_VIEWPORT_BIT).
1392 struct gl_viewport_attrib
1394 GLfloat X
, Y
; /**< position */
1395 GLfloat Width
, Height
; /**< size */
1396 GLdouble Near
, Far
; /**< Depth buffer range */
1405 } gl_map_buffer_index
;
1409 * Fields describing a mapped buffer range.
1411 struct gl_buffer_mapping
1413 GLbitfield AccessFlags
; /**< Mask of GL_MAP_x_BIT flags */
1414 GLvoid
*Pointer
; /**< User-space address of mapping */
1415 GLintptr Offset
; /**< Mapped offset */
1416 GLsizeiptr Length
; /**< Mapped length */
1421 * Usages we've seen for a buffer object.
1425 USAGE_UNIFORM_BUFFER
= 0x1,
1426 USAGE_TEXTURE_BUFFER
= 0x2,
1427 USAGE_ATOMIC_COUNTER_BUFFER
= 0x4,
1428 USAGE_SHADER_STORAGE_BUFFER
= 0x8,
1429 USAGE_TRANSFORM_FEEDBACK_BUFFER
= 0x10,
1430 USAGE_PIXEL_PACK_BUFFER
= 0x20,
1431 USAGE_DISABLE_MINMAX_CACHE
= 0x40,
1436 * GL_ARB_vertex/pixel_buffer_object buffer object
1438 struct gl_buffer_object
1443 GLchar
*Label
; /**< GL_KHR_debug */
1444 GLenum16 Usage
; /**< GL_STREAM_DRAW_ARB, GL_STREAM_READ_ARB, etc. */
1445 GLbitfield StorageFlags
; /**< GL_MAP_PERSISTENT_BIT, etc. */
1446 GLsizeiptrARB Size
; /**< Size of buffer storage in bytes */
1447 GLubyte
*Data
; /**< Location of storage either in RAM or VRAM. */
1448 GLboolean DeletePending
; /**< true if buffer object is removed from the hash */
1449 GLboolean Written
; /**< Ever written to? (for debugging) */
1450 GLboolean Purgeable
; /**< Is the buffer purgeable under memory pressure? */
1451 GLboolean Immutable
; /**< GL_ARB_buffer_storage */
1452 gl_buffer_usage UsageHistory
; /**< How has this buffer been used so far? */
1454 /** Counters used for buffer usage warnings */
1455 GLuint NumSubDataCalls
;
1456 GLuint NumMapBufferWriteCalls
;
1458 struct gl_buffer_mapping Mappings
[MAP_COUNT
];
1460 /** Memoization of min/max index computations for static index buffers */
1461 struct hash_table
*MinMaxCache
;
1462 unsigned MinMaxCacheHitIndices
;
1463 unsigned MinMaxCacheMissIndices
;
1464 bool MinMaxCacheDirty
;
1466 bool HandleAllocated
; /**< GL_ARB_bindless_texture */
1471 * Client pixel packing/unpacking attributes
1473 struct gl_pixelstore_attrib
1481 GLboolean SwapBytes
;
1483 GLboolean Invert
; /**< GL_MESA_pack_invert */
1484 GLint CompressedBlockWidth
; /**< GL_ARB_compressed_texture_pixel_storage */
1485 GLint CompressedBlockHeight
;
1486 GLint CompressedBlockDepth
;
1487 GLint CompressedBlockSize
;
1488 struct gl_buffer_object
*BufferObj
; /**< GL_ARB_pixel_buffer_object */
1493 * Vertex array information which is derived from gl_array_attributes
1494 * and gl_vertex_buffer_binding information. Used by the VBO module and
1497 struct gl_vertex_array
1499 /** if NULL, vertex data are in user memory */
1500 struct gl_buffer_object
*BufferObj
;
1501 /** Pointer into user memory, or offset into the BufferObj */
1503 GLsizei StrideB
; /**< actual stride in bytes */
1504 GLuint InstanceDivisor
; /**< GL_ARB_instanced_arrays */
1505 GLenum16 Type
; /**< datatype: GL_FLOAT, GL_INT, etc */
1506 GLenum16 Format
; /**< default: GL_RGBA, but may be GL_BGRA */
1507 unsigned Size
:4; /**< components per element (1,2,3,4) */
1508 unsigned _ElementSize
:8; /**< in bytes, up to 4*sizeof(GLdouble) */
1509 unsigned Normalized
:1; /**< GL_ARB_vertex_program */
1510 unsigned Integer
:1; /**< Integer-valued? */
1511 unsigned Doubles
:1; /**< doubles not converted to floats */
1516 * Attributes to describe a vertex array.
1518 * Contains the size, type, format and normalization flag,
1519 * along with the index of a vertex buffer binding point.
1521 * Note that the Stride field corresponds to VERTEX_ATTRIB_ARRAY_STRIDE
1522 * and is only present for backwards compatibility reasons.
1523 * Rendering always uses VERTEX_BINDING_STRIDE.
1524 * The gl*Pointer() functions will set VERTEX_ATTRIB_ARRAY_STRIDE
1525 * and VERTEX_BINDING_STRIDE to the same value, while
1526 * glBindVertexBuffer() will only set VERTEX_BINDING_STRIDE.
1528 struct gl_array_attributes
1530 /** Points to client array data. Not used when a VBO is bound */
1532 /** Offset of the first element relative to the binding offset */
1533 GLuint RelativeOffset
;
1534 GLshort Stride
; /**< Stride as specified with gl*Pointer() */
1535 GLenum16 Type
; /**< Datatype: GL_FLOAT, GL_INT, etc */
1536 GLenum16 Format
; /**< Default: GL_RGBA, but may be GL_BGRA */
1537 GLboolean Enabled
; /**< Whether the array is enabled */
1538 GLubyte Size
; /**< Components per element (1,2,3,4) */
1539 unsigned Normalized
:1; /**< Fixed-point values are normalized when converted to floats */
1540 unsigned Integer
:1; /**< Fixed-point values are not converted to floats */
1541 unsigned Doubles
:1; /**< double precision values are not converted to floats */
1542 unsigned _ElementSize
:8; /**< Size of each element in bytes */
1543 /** Index into gl_vertex_array_object::BufferBinding[] array */
1544 unsigned BufferBindingIndex
:6;
1549 * This describes the buffer object used for a vertex array (or
1550 * multiple vertex arrays). If BufferObj points to the default/null
1551 * buffer object, then the vertex array lives in user memory and not a VBO.
1553 struct gl_vertex_buffer_binding
1555 GLintptr Offset
; /**< User-specified offset */
1556 GLsizei Stride
; /**< User-specified stride */
1557 GLuint InstanceDivisor
; /**< GL_ARB_instanced_arrays */
1558 struct gl_buffer_object
*BufferObj
; /**< GL_ARB_vertex_buffer_object */
1559 GLbitfield _BoundArrays
; /**< Arrays bound to this binding point */
1564 * A representation of "Vertex Array Objects" (VAOs) from OpenGL 3.1+ /
1565 * the GL_ARB_vertex_array_object extension.
1567 struct gl_vertex_array_object
1569 /** Name of the VAO as received from glGenVertexArray. */
1574 GLchar
*Label
; /**< GL_KHR_debug */
1577 * Has this array object been bound?
1579 GLboolean EverBound
;
1582 * Derived vertex attribute arrays
1584 * This is a legacy data structure created from gl_array_attributes and
1585 * gl_vertex_buffer_binding, for compatibility with existing driver code.
1587 struct gl_vertex_array _VertexAttrib
[VERT_ATTRIB_MAX
];
1589 /** Vertex attribute arrays */
1590 struct gl_array_attributes VertexAttrib
[VERT_ATTRIB_MAX
];
1592 /** Vertex buffer bindings */
1593 struct gl_vertex_buffer_binding BufferBinding
[VERT_ATTRIB_MAX
];
1595 /** Mask indicating which vertex arrays have vertex buffer associated. */
1596 GLbitfield VertexAttribBufferMask
;
1598 /** Mask of VERT_BIT_* values indicating which arrays are enabled */
1599 GLbitfield _Enabled
;
1601 /** Mask of VERT_BIT_* values indicating changed/dirty arrays */
1602 GLbitfield NewArrays
;
1604 /** The index buffer (also known as the element array buffer in OpenGL). */
1605 struct gl_buffer_object
*IndexBufferObj
;
1610 * Enum for the OpenGL APIs we know about and may support.
1612 * NOTE: This must match the api_enum table in
1613 * src/mesa/main/get_hash_generator.py
1617 API_OPENGL_COMPAT
, /* legacy / compatibility contexts */
1621 API_OPENGL_LAST
= API_OPENGL_CORE
1626 * Vertex array state
1628 struct gl_array_attrib
1630 /** Currently bound array object. */
1631 struct gl_vertex_array_object
*VAO
;
1633 /** The default vertex array object */
1634 struct gl_vertex_array_object
*DefaultVAO
;
1636 /** The last VAO accessed by a DSA function */
1637 struct gl_vertex_array_object
*LastLookedUpVAO
;
1639 /** Array objects (GL_ARB_vertex_array_object) */
1640 struct _mesa_HashTable
*Objects
;
1642 GLint ActiveTexture
; /**< Client Active Texture */
1643 GLuint LockFirst
; /**< GL_EXT_compiled_vertex_array */
1644 GLuint LockCount
; /**< GL_EXT_compiled_vertex_array */
1647 * \name Primitive restart controls
1649 * Primitive restart is enabled if either \c PrimitiveRestart or
1650 * \c PrimitiveRestartFixedIndex is set.
1653 GLboolean PrimitiveRestart
;
1654 GLboolean PrimitiveRestartFixedIndex
;
1655 GLboolean _PrimitiveRestart
;
1656 GLuint RestartIndex
;
1659 /* GL_ARB_vertex_buffer_object */
1660 struct gl_buffer_object
*ArrayBufferObj
;
1663 * Vertex arrays as consumed by a driver.
1664 * The array pointer is set up only by the VBO module.
1666 const struct gl_vertex_array
**_DrawArrays
; /**< 0..VERT_ATTRIB_MAX-1 */
1668 /** Legal array datatypes and the API for which they have been computed */
1669 GLbitfield LegalTypesMask
;
1670 gl_api LegalTypesMaskAPI
;
1675 * Feedback buffer state
1680 GLbitfield _Mask
; /**< FB_* bits */
1688 * Selection buffer state
1692 GLuint
*Buffer
; /**< selection buffer */
1693 GLuint BufferSize
; /**< size of the selection buffer */
1694 GLuint BufferCount
; /**< number of values in the selection buffer */
1695 GLuint Hits
; /**< number of records in the selection buffer */
1696 GLuint NameStackDepth
; /**< name stack depth */
1697 GLuint NameStack
[MAX_NAME_STACK_DEPTH
]; /**< name stack */
1698 GLboolean HitFlag
; /**< hit flag */
1699 GLfloat HitMinZ
; /**< minimum hit depth */
1700 GLfloat HitMaxZ
; /**< maximum hit depth */
1705 * 1-D Evaluator control points
1709 GLuint Order
; /**< Number of control points */
1710 GLfloat u1
, u2
, du
; /**< u1, u2, 1.0/(u2-u1) */
1711 GLfloat
*Points
; /**< Points to contiguous control points */
1716 * 2-D Evaluator control points
1720 GLuint Uorder
; /**< Number of control points in U dimension */
1721 GLuint Vorder
; /**< Number of control points in V dimension */
1724 GLfloat
*Points
; /**< Points to contiguous control points */
1729 * All evaluator control point state
1731 struct gl_evaluators
1737 struct gl_1d_map Map1Vertex3
;
1738 struct gl_1d_map Map1Vertex4
;
1739 struct gl_1d_map Map1Index
;
1740 struct gl_1d_map Map1Color4
;
1741 struct gl_1d_map Map1Normal
;
1742 struct gl_1d_map Map1Texture1
;
1743 struct gl_1d_map Map1Texture2
;
1744 struct gl_1d_map Map1Texture3
;
1745 struct gl_1d_map Map1Texture4
;
1752 struct gl_2d_map Map2Vertex3
;
1753 struct gl_2d_map Map2Vertex4
;
1754 struct gl_2d_map Map2Index
;
1755 struct gl_2d_map Map2Color4
;
1756 struct gl_2d_map Map2Normal
;
1757 struct gl_2d_map Map2Texture1
;
1758 struct gl_2d_map Map2Texture2
;
1759 struct gl_2d_map Map2Texture3
;
1760 struct gl_2d_map Map2Texture4
;
1765 struct gl_transform_feedback_varying_info
1776 * Per-output info vertex shaders for transform feedback.
1778 struct gl_transform_feedback_output
1780 uint32_t OutputRegister
;
1781 uint32_t OutputBuffer
;
1782 uint32_t NumComponents
;
1785 /** offset (in DWORDs) of this output within the interleaved structure */
1789 * Offset into the output register of the data to output. For example,
1790 * if NumComponents is 2 and ComponentOffset is 1, then the data to
1791 * offset is in the y and z components of the output register.
1793 uint32_t ComponentOffset
;
1797 struct gl_transform_feedback_buffer
1801 uint32_t NumVaryings
;
1804 * Total number of components stored in each buffer. This may be used by
1805 * hardware back-ends to determine the correct stride when interleaving
1806 * multiple transform feedback outputs in the same buffer.
1811 * Which transform feedback stream this buffer binding is associated with.
1817 /** Post-link transform feedback info. */
1818 struct gl_transform_feedback_info
1820 /* Was xfb enabled via the api or in shader layout qualifiers */
1823 unsigned NumOutputs
;
1825 /* Bitmask of active buffer indices. */
1826 unsigned ActiveBuffers
;
1828 struct gl_transform_feedback_output
*Outputs
;
1830 /** Transform feedback varyings used for the linking of this shader program.
1832 * Use for glGetTransformFeedbackVarying().
1834 struct gl_transform_feedback_varying_info
*Varyings
;
1837 struct gl_transform_feedback_buffer Buffers
[MAX_FEEDBACK_BUFFERS
];
1842 * Transform feedback object state
1844 struct gl_transform_feedback_object
1846 GLuint Name
; /**< AKA the object ID */
1848 GLchar
*Label
; /**< GL_KHR_debug */
1849 GLboolean Active
; /**< Is transform feedback enabled? */
1850 GLboolean Paused
; /**< Is transform feedback paused? */
1851 GLboolean EndedAnytime
; /**< Has EndTransformFeedback been called
1853 GLboolean EverBound
; /**< Has this object been bound? */
1856 * GLES: if Active is true, remaining number of primitives which can be
1857 * rendered without overflow. This is necessary to track because GLES
1858 * requires us to generate INVALID_OPERATION if a call to glDrawArrays or
1859 * glDrawArraysInstanced would overflow transform feedback buffers.
1860 * Undefined if Active is false.
1862 * Not tracked for desktop GL since it's unnecessary.
1864 unsigned GlesRemainingPrims
;
1867 * The program active when BeginTransformFeedback() was called.
1868 * When active and unpaused, this equals ctx->Shader.CurrentProgram[stage],
1869 * where stage is the pipeline stage that is the source of data for
1870 * transform feedback.
1872 struct gl_program
*program
;
1874 /** The feedback buffers */
1875 GLuint BufferNames
[MAX_FEEDBACK_BUFFERS
];
1876 struct gl_buffer_object
*Buffers
[MAX_FEEDBACK_BUFFERS
];
1878 /** Start of feedback data in dest buffer */
1879 GLintptr Offset
[MAX_FEEDBACK_BUFFERS
];
1882 * Max data to put into dest buffer (in bytes). Computed based on
1883 * RequestedSize and the actual size of the buffer.
1885 GLsizeiptr Size
[MAX_FEEDBACK_BUFFERS
];
1888 * Size that was specified when the buffer was bound. If the buffer was
1889 * bound with glBindBufferBase() or glBindBufferOffsetEXT(), this value is
1892 GLsizeiptr RequestedSize
[MAX_FEEDBACK_BUFFERS
];
1897 * Context state for transform feedback.
1899 struct gl_transform_feedback_state
1901 GLenum16 Mode
; /**< GL_POINTS, GL_LINES or GL_TRIANGLES */
1903 /** The general binding point (GL_TRANSFORM_FEEDBACK_BUFFER) */
1904 struct gl_buffer_object
*CurrentBuffer
;
1906 /** The table of all transform feedback objects */
1907 struct _mesa_HashTable
*Objects
;
1909 /** The current xform-fb object (GL_TRANSFORM_FEEDBACK_BINDING) */
1910 struct gl_transform_feedback_object
*CurrentObject
;
1912 /** The default xform-fb object (Name==0) */
1913 struct gl_transform_feedback_object
*DefaultObject
;
1918 * A "performance monitor" as described in AMD_performance_monitor.
1920 struct gl_perf_monitor_object
1924 /** True if the monitor is currently active (Begin called but not End). */
1928 * True if the monitor has ended.
1930 * This is distinct from !Active because it may never have began.
1935 * A list of groups with currently active counters.
1937 * ActiveGroups[g] == n if there are n counters active from group 'g'.
1939 unsigned *ActiveGroups
;
1942 * An array of bitsets, subscripted by group ID, then indexed by counter ID.
1944 * Checking whether counter 'c' in group 'g' is active can be done via:
1946 * BITSET_TEST(ActiveCounters[g], c)
1948 GLuint
**ActiveCounters
;
1952 union gl_perf_monitor_counter_value
1960 struct gl_perf_monitor_counter
1962 /** Human readable name for the counter. */
1966 * Data type of the counter. Valid values are FLOAT, UNSIGNED_INT,
1967 * UNSIGNED_INT64_AMD, and PERCENTAGE_AMD.
1971 /** Minimum counter value. */
1972 union gl_perf_monitor_counter_value Minimum
;
1974 /** Maximum counter value. */
1975 union gl_perf_monitor_counter_value Maximum
;
1979 struct gl_perf_monitor_group
1981 /** Human readable name for the group. */
1985 * Maximum number of counters in this group which can be active at the
1988 GLuint MaxActiveCounters
;
1990 /** Array of counters within this group. */
1991 const struct gl_perf_monitor_counter
*Counters
;
1997 * A query object instance as described in INTEL_performance_query.
1999 * NB: We want to keep this and the corresponding backend structure
2000 * relatively lean considering that applications may expect to
2001 * allocate enough objects to be able to query around all draw calls
2004 struct gl_perf_query_object
2006 GLuint Id
; /**< hash table ID/name */
2007 unsigned Used
:1; /**< has been used for 1 or more queries */
2008 unsigned Active
:1; /**< inside Begin/EndPerfQuery */
2009 unsigned Ready
:1; /**< result is ready? */
2014 * Context state for AMD_performance_monitor.
2016 struct gl_perf_monitor_state
2018 /** Array of performance monitor groups (indexed by group ID) */
2019 const struct gl_perf_monitor_group
*Groups
;
2022 /** The table of all performance monitors. */
2023 struct _mesa_HashTable
*Monitors
;
2028 * Context state for INTEL_performance_query.
2030 struct gl_perf_query_state
2032 struct _mesa_HashTable
*Objects
; /**< The table of all performance query objects */
2037 * A bindless sampler object.
2039 struct gl_bindless_sampler
2041 /** Texture unit (set by glUniform1()). */
2044 /** Whether this bindless sampler is bound to a unit. */
2047 /** Texture Target (TEXTURE_1D/2D/3D/etc_INDEX). */
2048 gl_texture_index target
;
2050 /** Pointer to the base of the data. */
2056 * A bindless image object.
2058 struct gl_bindless_image
2060 /** Image unit (set by glUniform1()). */
2063 /** Whether this bindless image is bound to a unit. */
2066 /** Access qualifier (GL_READ_WRITE, GL_READ_ONLY, GL_WRITE_ONLY) */
2069 /** Pointer to the base of the data. */
2075 * Names of the various vertex/fragment program register files, etc.
2077 * NOTE: first four tokens must fit into 2 bits (see t_vb_arbprogram.c)
2078 * All values should fit in a 4-bit field.
2080 * NOTE: PROGRAM_STATE_VAR, PROGRAM_CONSTANT, and PROGRAM_UNIFORM can all be
2081 * considered to be "uniform" variables since they can only be set outside
2082 * glBegin/End. They're also all stored in the same Parameters array.
2086 PROGRAM_TEMPORARY
, /**< machine->Temporary[] */
2087 PROGRAM_ARRAY
, /**< Arrays & Matrixes */
2088 PROGRAM_INPUT
, /**< machine->Inputs[] */
2089 PROGRAM_OUTPUT
, /**< machine->Outputs[] */
2090 PROGRAM_STATE_VAR
, /**< gl_program->Parameters[] */
2091 PROGRAM_CONSTANT
, /**< gl_program->Parameters[] */
2092 PROGRAM_UNIFORM
, /**< gl_program->Parameters[] */
2093 PROGRAM_WRITE_ONLY
, /**< A dummy, write-only register */
2094 PROGRAM_ADDRESS
, /**< machine->AddressReg */
2095 PROGRAM_SAMPLER
, /**< for shader samplers, compile-time only */
2096 PROGRAM_SYSTEM_VALUE
,/**< InstanceId, PrimitiveID, etc. */
2097 PROGRAM_UNDEFINED
, /**< Invalid/TBD value */
2098 PROGRAM_IMMEDIATE
, /**< Immediate value, used by TGSI */
2099 PROGRAM_BUFFER
, /**< for shader buffers, compile-time only */
2100 PROGRAM_MEMORY
, /**< for shared, global and local memory */
2101 PROGRAM_IMAGE
, /**< for shader images, compile-time only */
2102 PROGRAM_HW_ATOMIC
, /**< for hw atomic counters, compile-time only */
2108 * Base class for any kind of program object
2112 /** FIXME: This must be first until we split shader_info from nir_shader */
2113 struct shader_info info
;
2117 GLubyte
*String
; /**< Null-terminated program text */
2119 /** GL_VERTEX/FRAGMENT_PROGRAM_ARB, GL_GEOMETRY_PROGRAM_NV */
2121 GLenum16 Format
; /**< String encoding format */
2123 GLboolean _Used
; /**< Ever used for drawing? Used for debugging */
2125 struct nir_shader
*nir
;
2127 /* Saved and restored with metadata. Freed with ralloc. */
2128 void *driver_cache_blob
;
2129 size_t driver_cache_blob_size
;
2131 bool is_arb_asm
; /** Is this an ARB assembly-style program */
2133 /** Is this program written to on disk shader cache */
2134 bool program_written_to_cache
;
2136 /** Subset of OutputsWritten outputs written with non-zero index. */
2137 GLbitfield64 SecondaryOutputsWritten
;
2138 /** TEXTURE_x_BIT bitmask */
2139 GLbitfield TexturesUsed
[MAX_COMBINED_TEXTURE_IMAGE_UNITS
];
2140 /** Bitfield of which samplers are used */
2141 GLbitfield SamplersUsed
;
2142 /** Texture units used for shadow sampling. */
2143 GLbitfield ShadowSamplers
;
2144 /** Texture units used for samplerExternalOES */
2145 GLbitfield ExternalSamplersUsed
;
2147 /* Fragement shader only fields */
2148 GLboolean OriginUpperLeft
;
2149 GLboolean PixelCenterInteger
;
2151 /** Named parameters, constants, etc. from program text */
2152 struct gl_program_parameter_list
*Parameters
;
2154 /** Map from sampler unit to texture unit (set by glUniform1i()) */
2155 GLubyte SamplerUnits
[MAX_SAMPLERS
];
2157 /* FIXME: We should be able to make this struct a union. However some
2158 * drivers (i915/fragment_programs, swrast/prog_execute) mix the use of
2159 * these fields, we should fix this.
2162 /** Fields used by GLSL programs */
2164 /** Data shared by gl_program and gl_shader_program */
2165 struct gl_shader_program_data
*data
;
2167 struct gl_active_atomic_buffer
**AtomicBuffers
;
2169 /** Post-link transform feedback info. */
2170 struct gl_transform_feedback_info
*LinkedTransformFeedback
;
2173 * Number of types for subroutine uniforms.
2175 GLuint NumSubroutineUniformTypes
;
2178 * Subroutine uniform remap table
2179 * based on the program level uniform remap table.
2181 GLuint NumSubroutineUniforms
; /* non-sparse total */
2182 GLuint NumSubroutineUniformRemapTable
;
2183 struct gl_uniform_storage
**SubroutineUniformRemapTable
;
2186 * Num of subroutine functions for this stage and storage for them.
2188 GLuint NumSubroutineFunctions
;
2189 GLuint MaxSubroutineFunctionIndex
;
2190 struct gl_subroutine_function
*SubroutineFunctions
;
2193 * Map from image uniform index to image unit (set by glUniform1i())
2195 * An image uniform index is associated with each image uniform by
2196 * the linker. The image index associated with each uniform is
2197 * stored in the \c gl_uniform_storage::image field.
2199 GLubyte ImageUnits
[MAX_IMAGE_UNIFORMS
];
2202 * Access qualifier specified in the shader for each image uniform
2203 * index. Either \c GL_READ_ONLY, \c GL_WRITE_ONLY or \c
2206 * It may be different, though only more strict than the value of
2207 * \c gl_image_unit::Access for the corresponding image unit.
2209 GLenum16 ImageAccess
[MAX_IMAGE_UNIFORMS
];
2211 struct gl_uniform_block
**UniformBlocks
;
2212 struct gl_uniform_block
**ShaderStorageBlocks
;
2214 /** Which texture target is being sampled
2215 * (TEXTURE_1D/2D/3D/etc_INDEX)
2217 gl_texture_index SamplerTargets
[MAX_SAMPLERS
];
2220 * Number of samplers declared with the bindless_sampler layout
2221 * qualifier as specified by ARB_bindless_texture.
2223 GLuint NumBindlessSamplers
;
2224 GLboolean HasBoundBindlessSampler
;
2225 struct gl_bindless_sampler
*BindlessSamplers
;
2228 * Number of images declared with the bindless_image layout qualifier
2229 * as specified by ARB_bindless_texture.
2231 GLuint NumBindlessImages
;
2232 GLboolean HasBoundBindlessImage
;
2233 struct gl_bindless_image
*BindlessImages
;
2238 * A bitmask of gl_advanced_blend_mode values
2240 GLbitfield BlendSupport
;
2245 /** ARB assembly-style program fields */
2247 struct prog_instruction
*Instructions
;
2250 * Local parameters used by the program.
2252 * It's dynamically allocated because it is rarely used (just
2253 * assembly-style programs), and MAX_PROGRAM_LOCAL_PARAMS entries
2254 * once it's allocated.
2256 GLfloat (*LocalParams
)[4];
2258 /** Bitmask of which register files are read/written with indirect
2259 * addressing. Mask of (1 << PROGRAM_x) bits.
2261 GLbitfield IndirectRegisterFiles
;
2263 /** Logical counts */
2265 GLuint NumInstructions
;
2266 GLuint NumTemporaries
;
2267 GLuint NumParameters
;
2268 GLuint NumAttributes
;
2269 GLuint NumAddressRegs
;
2270 GLuint NumAluInstructions
;
2271 GLuint NumTexInstructions
;
2272 GLuint NumTexIndirections
;
2274 /** Native, actual h/w counts */
2276 GLuint NumNativeInstructions
;
2277 GLuint NumNativeTemporaries
;
2278 GLuint NumNativeParameters
;
2279 GLuint NumNativeAttributes
;
2280 GLuint NumNativeAddressRegs
;
2281 GLuint NumNativeAluInstructions
;
2282 GLuint NumNativeTexInstructions
;
2283 GLuint NumNativeTexIndirections
;
2286 /** Used by ARB assembly-style programs. Can only be true for vertex
2289 GLboolean IsPositionInvariant
;
2296 * State common to vertex and fragment programs.
2298 struct gl_program_state
2300 GLint ErrorPos
; /* GL_PROGRAM_ERROR_POSITION_ARB/NV */
2301 const char *ErrorString
; /* GL_PROGRAM_ERROR_STRING_ARB/NV */
2306 * Context state for vertex programs.
2308 struct gl_vertex_program_state
2310 GLboolean Enabled
; /**< User-set GL_VERTEX_PROGRAM_ARB/NV flag */
2311 GLboolean PointSizeEnabled
; /**< GL_VERTEX_PROGRAM_POINT_SIZE_ARB/NV */
2312 GLboolean TwoSideEnabled
; /**< GL_VERTEX_PROGRAM_TWO_SIDE_ARB/NV */
2313 /** Should fixed-function T&L be implemented with a vertex prog? */
2314 GLboolean _MaintainTnlProgram
;
2316 struct gl_program
*Current
; /**< User-bound vertex program */
2318 /** Currently enabled and valid vertex program (including internal
2319 * programs, user-defined vertex programs and GLSL vertex shaders).
2320 * This is the program we must use when rendering.
2322 struct gl_program
*_Current
;
2324 GLfloat Parameters
[MAX_PROGRAM_ENV_PARAMS
][4]; /**< Env params */
2326 /** Program to emulate fixed-function T&L (see above) */
2327 struct gl_program
*_TnlProgram
;
2329 /** Cache of fixed-function programs */
2330 struct gl_program_cache
*Cache
;
2332 GLboolean _Overriden
;
2336 * Context state for tessellation control programs.
2338 struct gl_tess_ctrl_program_state
2340 /** Currently bound and valid shader. */
2341 struct gl_program
*_Current
;
2343 GLint patch_vertices
;
2344 GLfloat patch_default_outer_level
[4];
2345 GLfloat patch_default_inner_level
[2];
2349 * Context state for tessellation evaluation programs.
2351 struct gl_tess_eval_program_state
2353 /** Currently bound and valid shader. */
2354 struct gl_program
*_Current
;
2358 * Context state for geometry programs.
2360 struct gl_geometry_program_state
2363 * Currently enabled and valid program (including internal programs
2364 * and compiled shader programs).
2366 struct gl_program
*_Current
;
2370 * Context state for fragment programs.
2372 struct gl_fragment_program_state
2374 GLboolean Enabled
; /**< User-set fragment program enable flag */
2375 /** Should fixed-function texturing be implemented with a fragment prog? */
2376 GLboolean _MaintainTexEnvProgram
;
2378 struct gl_program
*Current
; /**< User-bound fragment program */
2381 * Currently enabled and valid fragment program (including internal
2382 * programs, user-defined fragment programs and GLSL fragment shaders).
2383 * This is the program we must use when rendering.
2385 struct gl_program
*_Current
;
2387 GLfloat Parameters
[MAX_PROGRAM_ENV_PARAMS
][4]; /**< Env params */
2389 /** Program to emulate fixed-function texture env/combine (see above) */
2390 struct gl_program
*_TexEnvProgram
;
2392 /** Cache of fixed-function programs */
2393 struct gl_program_cache
*Cache
;
2398 * Context state for compute programs.
2400 struct gl_compute_program_state
2402 /** Currently enabled and valid program (including internal programs
2403 * and compiled shader programs).
2405 struct gl_program
*_Current
;
2410 * ATI_fragment_shader runtime state
2413 struct atifs_instruction
;
2414 struct atifs_setupinst
;
2417 * ATI fragment shader
2419 struct ati_fragment_shader
2423 struct atifs_instruction
*Instructions
[2];
2424 struct atifs_setupinst
*SetupInst
[2];
2425 GLfloat Constants
[8][4];
2426 GLbitfield LocalConstDef
; /**< Indicates which constants have been set */
2427 GLubyte numArithInstr
[2];
2428 GLubyte regsAssigned
[2];
2429 GLubyte NumPasses
; /**< 1 or 2 */
2431 * Current compile stage: 0 setup pass1, 1 arith pass1,
2432 * 2 setup pass2, 3 arith pass2.
2435 GLubyte last_optype
;
2436 GLboolean interpinp1
;
2439 * Array of 2 bit values for each tex unit to remember whether
2440 * STR or STQ swizzle was used
2443 struct gl_program
*Program
;
2447 * Context state for GL_ATI_fragment_shader
2449 struct gl_ati_fragment_shader_state
2452 GLboolean Compiling
;
2453 GLfloat GlobalConstants
[8][4];
2454 struct ati_fragment_shader
*Current
;
2458 * Shader subroutine function definition
2460 struct gl_subroutine_function
2464 int num_compat_types
;
2465 const struct glsl_type
**types
;
2469 * Shader information needed by both gl_shader and gl_linked shader.
2471 struct gl_shader_info
2474 * Tessellation Control shader state from layout qualifiers.
2478 * 0 - vertices not declared in shader, or
2479 * 1 .. GL_MAX_PATCH_VERTICES
2485 * Tessellation Evaluation shader state from layout qualifiers.
2489 * GL_TRIANGLES, GL_QUADS, GL_ISOLINES or PRIM_UNKNOWN if it's not set
2492 GLenum16 PrimitiveMode
;
2494 enum gl_tess_spacing Spacing
;
2497 * GL_CW, GL_CCW, or 0 if it's not set in this shader.
2499 GLenum16 VertexOrder
;
2501 * 1, 0, or -1 if it's not set in this shader.
2507 * Geometry shader state from GLSL 1.50 layout qualifiers.
2512 * 0 - Invocations count not declared in shader, or
2513 * 1 .. MAX_GEOMETRY_SHADER_INVOCATIONS
2517 * GL_POINTS, GL_LINES, GL_LINES_ADJACENCY, GL_TRIANGLES, or
2518 * GL_TRIANGLES_ADJACENCY, or PRIM_UNKNOWN if it's not set in this
2523 * GL_POINTS, GL_LINE_STRIP or GL_TRIANGLE_STRIP, or PRIM_UNKNOWN if
2524 * it's not set in this shader.
2526 GLenum16 OutputType
;
2530 * Compute shader state from ARB_compute_shader and
2531 * ARB_compute_variable_group_size layout qualifiers.
2535 * Size specified using local_size_{x,y,z}, or all 0's to indicate that
2536 * it's not set in this shader.
2538 unsigned LocalSize
[3];
2541 * Whether a variable work group size has been specified as defined by
2542 * ARB_compute_variable_group_size.
2544 bool LocalSizeVariable
;
2549 * A linked GLSL shader object.
2551 struct gl_linked_shader
2553 gl_shader_stage Stage
;
2556 unsigned SourceChecksum
;
2559 struct gl_program
*Program
; /**< Post-compile assembly code */
2562 * \name Sampler tracking
2564 * \note Each of these fields is only set post-linking.
2567 GLbitfield shadow_samplers
; /**< Samplers used for shadow sampling. */
2571 * Number of default uniform block components used by this shader.
2573 * This field is only set post-linking.
2575 unsigned num_uniform_components
;
2578 * Number of combined uniform components used by this shader.
2580 * This field is only set post-linking. It is the sum of the uniform block
2581 * sizes divided by sizeof(float), and num_uniform_compoennts.
2583 unsigned num_combined_uniform_components
;
2585 struct exec_list
*ir
;
2586 struct exec_list
*packed_varyings
;
2587 struct exec_list
*fragdata_arrays
;
2588 struct glsl_symbol_table
*symbols
;
2593 * Compile status enum. COMPILE_SKIPPED is used to indicate the compile
2594 * was skipped due to the shader matching one that's been seen before by
2595 * the on-disk cache.
2597 enum gl_compile_status
2599 COMPILE_FAILURE
= 0,
2606 * A GLSL shader object.
2610 /** GL_FRAGMENT_SHADER || GL_VERTEX_SHADER || GL_GEOMETRY_SHADER_ARB ||
2611 * GL_TESS_CONTROL_SHADER || GL_TESS_EVALUATION_SHADER.
2612 * Must be the first field.
2615 gl_shader_stage Stage
;
2616 GLuint Name
; /**< AKA the handle */
2617 GLint RefCount
; /**< Reference count */
2618 GLchar
*Label
; /**< GL_KHR_debug */
2619 unsigned char sha1
[20]; /**< SHA1 hash of pre-processed source */
2620 GLboolean DeletePending
;
2621 bool IsES
; /**< True if this shader uses GLSL ES */
2623 enum gl_compile_status CompileStatus
;
2626 unsigned SourceChecksum
; /**< for debug/logging purposes */
2628 const GLchar
*Source
; /**< Source code string */
2630 const GLchar
*FallbackSource
; /**< Fallback string used by on-disk cache*/
2634 unsigned Version
; /**< GLSL version used for linking */
2637 * A bitmask of gl_advanced_blend_mode values
2639 GLbitfield BlendSupport
;
2641 struct exec_list
*ir
;
2642 struct glsl_symbol_table
*symbols
;
2645 * Whether early fragment tests are enabled as defined by
2646 * ARB_shader_image_load_store.
2648 bool EarlyFragmentTests
;
2650 bool ARB_fragment_coord_conventions_enable
;
2652 bool redeclares_gl_fragcoord
;
2653 bool uses_gl_fragcoord
;
2655 bool PostDepthCoverage
;
2659 * Fragment shader state from GLSL 1.50 layout qualifiers.
2661 bool origin_upper_left
;
2662 bool pixel_center_integer
;
2665 * Whether bindless_sampler/bindless_image, and respectively
2666 * bound_sampler/bound_image are declared at global scope as defined by
2667 * ARB_bindless_texture.
2669 bool bindless_sampler
;
2670 bool bindless_image
;
2674 /** Global xfb_stride out qualifier if any */
2675 GLuint TransformFeedbackBufferStride
[MAX_FEEDBACK_BUFFERS
];
2677 struct gl_shader_info info
;
2679 /* ARB_gl_spirv related data */
2680 struct gl_shader_spirv_data
*spirv_data
;
2684 struct gl_uniform_buffer_variable
2689 * Name of the uniform as seen by glGetUniformIndices.
2691 * glGetUniformIndices requires that the block instance index \b not be
2692 * present in the name of queried uniforms.
2695 * \c gl_uniform_buffer_variable::IndexName and
2696 * \c gl_uniform_buffer_variable::Name may point to identical storage.
2700 const struct glsl_type
*Type
;
2701 unsigned int Offset
;
2706 struct gl_uniform_block
2708 /** Declared name of the uniform block */
2711 /** Array of supplemental information about UBO ir_variables. */
2712 struct gl_uniform_buffer_variable
*Uniforms
;
2716 * Index (GL_UNIFORM_BLOCK_BINDING) into ctx->UniformBufferBindings[] to use
2717 * with glBindBufferBase to bind a buffer object to this uniform block.
2722 * Minimum size (in bytes) of a buffer object to back this uniform buffer
2723 * (GL_UNIFORM_BLOCK_DATA_SIZE).
2725 GLuint UniformBufferSize
;
2727 /** Stages that reference this block */
2731 * Linearized array index for uniform block instance arrays
2733 * Given a uniform block instance array declared with size
2734 * blk[s_0][s_1]..[s_m], the block referenced by blk[i_0][i_1]..[i_m] will
2735 * have the linearized array index
2738 * i_m + ∑ i_j * ∏ s_k
2741 * For a uniform block instance that is not an array, this is always 0.
2743 uint8_t linearized_array_index
;
2746 * Layout specified in the shader
2748 * This isn't accessible through the API, but it is used while
2749 * cross-validating uniform blocks.
2751 enum glsl_interface_packing _Packing
;
2752 GLboolean _RowMajor
;
2756 * Structure that represents a reference to an atomic buffer from some
2759 struct gl_active_atomic_buffer
2761 /** Uniform indices of the atomic counters declared within it. */
2765 /** Binding point index associated with it. */
2768 /** Minimum reasonable size it is expected to have. */
2771 /** Shader stages making use of it. */
2772 GLboolean StageReferences
[MESA_SHADER_STAGES
];
2776 * Data container for shader queries. This holds only the minimal
2777 * amount of required information for resource queries to work.
2779 struct gl_shader_variable
2782 * Declared type of the variable
2784 const struct glsl_type
*type
;
2787 * If the variable is in an interface block, this is the type of the block.
2789 const struct glsl_type
*interface_type
;
2792 * For variables inside structs (possibly recursively), this is the
2793 * outermost struct type.
2795 const struct glsl_type
*outermost_struct_type
;
2798 * Declared name of the variable
2803 * Storage location of the base of this variable
2805 * The precise meaning of this field depends on the nature of the variable.
2807 * - Vertex shader input: one of the values from \c gl_vert_attrib.
2808 * - Vertex shader output: one of the values from \c gl_varying_slot.
2809 * - Geometry shader input: one of the values from \c gl_varying_slot.
2810 * - Geometry shader output: one of the values from \c gl_varying_slot.
2811 * - Fragment shader input: one of the values from \c gl_varying_slot.
2812 * - Fragment shader output: one of the values from \c gl_frag_result.
2813 * - Uniforms: Per-stage uniform slot number for default uniform block.
2814 * - Uniforms: Index within the uniform block definition for UBO members.
2815 * - Non-UBO Uniforms: explicit location until linking then reused to
2816 * store uniform slot number.
2817 * - Other: This field is not currently used.
2819 * If the variable is a uniform, shader input, or shader output, and the
2820 * slot has not been assigned, the value will be -1.
2825 * Specifies the first component the variable is stored in as per
2826 * ARB_enhanced_layouts.
2828 unsigned component
:2;
2831 * Output index for dual source blending.
2834 * The GLSL spec only allows the values 0 or 1 for the index in \b dual
2840 * Specifies whether a shader input/output is per-patch in tessellation
2846 * Storage class of the variable.
2848 * \sa (n)ir_variable_mode
2853 * Interpolation mode for shader inputs / outputs
2855 * \sa glsl_interp_mode
2857 unsigned interpolation
:2;
2860 * Was the location explicitly set in the shader?
2862 * If the location is explicitly set in the shader, it \b cannot be changed
2863 * by the linker or by the API (e.g., calls to \c glBindAttribLocation have
2866 unsigned explicit_location
:1;
2869 * Precision qualifier.
2871 unsigned precision
:2;
2875 * Active resource in a gl_shader_program
2877 struct gl_program_resource
2879 GLenum16 Type
; /** Program interface type. */
2880 const void *Data
; /** Pointer to resource associated data structure. */
2881 uint8_t StageReferences
; /** Bitmask of shader stage references. */
2885 * Link status enum. LINKING_SKIPPED is used to indicate linking
2886 * was skipped due to the shader being loaded from the on-disk cache.
2890 LINKING_FAILURE
= 0,
2896 * A data structure to be shared by gl_shader_program and gl_program.
2898 struct gl_shader_program_data
2900 GLint RefCount
; /**< Reference count */
2902 /** SHA1 hash of linked shader program */
2903 unsigned char sha1
[20];
2905 unsigned NumUniformStorage
;
2906 unsigned NumHiddenUniforms
;
2907 struct gl_uniform_storage
*UniformStorage
;
2909 unsigned NumUniformBlocks
;
2910 unsigned NumShaderStorageBlocks
;
2912 struct gl_uniform_block
*UniformBlocks
;
2913 struct gl_uniform_block
*ShaderStorageBlocks
;
2915 struct gl_active_atomic_buffer
*AtomicBuffers
;
2916 unsigned NumAtomicBuffers
;
2918 /* Shader cache variables used during restore */
2919 unsigned NumUniformDataSlots
;
2920 union gl_constant_value
*UniformDataSlots
;
2922 /* Used to hold initial uniform values for program binary restores.
2924 * From the ARB_get_program_binary spec:
2926 * "A successful call to ProgramBinary will reset all uniform
2927 * variables to their initial values. The initial value is either
2928 * the value of the variable's initializer as specified in the
2929 * original shader source, or 0 if no initializer was present.
2931 union gl_constant_value
*UniformDataDefaults
;
2933 GLboolean Validated
;
2935 /** List of all active resources after linking. */
2936 struct gl_program_resource
*ProgramResourceList
;
2937 unsigned NumProgramResourceList
;
2939 enum gl_link_status LinkStatus
; /**< GL_LINK_STATUS */
2942 unsigned Version
; /**< GLSL version used for linking */
2944 /* Mask of stages this program was linked against */
2945 unsigned linked_stages
;
2949 * A GLSL program object.
2950 * Basically a linked collection of vertex and fragment shaders.
2952 struct gl_shader_program
2954 GLenum16 Type
; /**< Always GL_SHADER_PROGRAM (internal token) */
2955 GLuint Name
; /**< aka handle or ID */
2956 GLchar
*Label
; /**< GL_KHR_debug */
2957 GLint RefCount
; /**< Reference count */
2958 GLboolean DeletePending
;
2961 * Is the application intending to glGetProgramBinary this program?
2963 GLboolean BinaryRetreivableHint
;
2966 * Indicates whether program can be bound for individual pipeline stages
2967 * using UseProgramStages after it is next linked.
2969 GLboolean SeparateShader
;
2971 GLuint NumShaders
; /**< number of attached shaders */
2972 struct gl_shader
**Shaders
; /**< List of attached the shaders */
2975 * User-defined attribute bindings
2977 * These are set via \c glBindAttribLocation and are used to direct the
2978 * GLSL linker. These are \b not the values used in the compiled shader,
2979 * and they are \b not the values returned by \c glGetAttribLocation.
2981 struct string_to_uint_map
*AttributeBindings
;
2984 * User-defined fragment data bindings
2986 * These are set via \c glBindFragDataLocation and are used to direct the
2987 * GLSL linker. These are \b not the values used in the compiled shader,
2988 * and they are \b not the values returned by \c glGetFragDataLocation.
2990 struct string_to_uint_map
*FragDataBindings
;
2991 struct string_to_uint_map
*FragDataIndexBindings
;
2994 * Transform feedback varyings last specified by
2995 * glTransformFeedbackVaryings().
2997 * For the current set of transform feedback varyings used for transform
2998 * feedback output, see LinkedTransformFeedback.
3001 GLenum16 BufferMode
;
3002 /** Global xfb_stride out qualifier if any */
3003 GLuint BufferStride
[MAX_FEEDBACK_BUFFERS
];
3005 GLchar
**VaryingNames
; /**< Array [NumVarying] of char * */
3006 } TransformFeedback
;
3008 struct gl_program
*last_vert_prog
;
3010 /** Post-link gl_FragDepth layout for ARB_conservative_depth. */
3011 enum gl_frag_depth_layout FragDepthLayout
;
3014 * Geometry shader state - copied into gl_program by
3015 * _mesa_copy_linked_program_data().
3020 bool UsesEndPrimitive
;
3025 * Compute shader state - copied into gl_program by
3026 * _mesa_copy_linked_program_data().
3030 * Size of shared variables accessed by the compute shader.
3032 unsigned SharedSize
;
3035 /** Data shared by gl_program and gl_shader_program */
3036 struct gl_shader_program_data
*data
;
3039 * Mapping from GL uniform locations returned by \c glUniformLocation to
3040 * UniformStorage entries. Arrays will have multiple contiguous slots
3041 * in the UniformRemapTable, all pointing to the same UniformStorage entry.
3043 unsigned NumUniformRemapTable
;
3044 struct gl_uniform_storage
**UniformRemapTable
;
3047 * Sometimes there are empty slots left over in UniformRemapTable after we
3048 * allocate slots to explicit locations. This list stores the blocks of
3049 * continuous empty slots inside UniformRemapTable.
3051 struct exec_list EmptyUniformLocations
;
3054 * Total number of explicit uniform location including inactive uniforms.
3056 unsigned NumExplicitUniformLocations
;
3059 * Map of active uniform names to locations
3061 * Maps any active uniform that is not an array element to a location.
3062 * Each active uniform, including individual structure members will appear
3063 * in this map. This roughly corresponds to the set of names that would be
3064 * enumerated by \c glGetActiveUniform.
3066 struct string_to_uint_map
*UniformHash
;
3068 GLboolean SamplersValidated
; /**< Samplers validated against texture units? */
3070 bool IsES
; /**< True if this program uses GLSL ES */
3073 * Per-stage shaders resulting from the first stage of linking.
3075 * Set of linked shaders for this program. The array is accessed using the
3076 * \c MESA_SHADER_* defines. Entries for non-existent stages will be
3079 struct gl_linked_shader
*_LinkedShaders
[MESA_SHADER_STAGES
];
3082 * True if any of the fragment shaders attached to this program use:
3083 * #extension ARB_fragment_coord_conventions: enable
3085 GLboolean ARB_fragment_coord_conventions_enable
;
3089 #define GLSL_DUMP 0x1 /**< Dump shaders to stdout */
3090 #define GLSL_LOG 0x2 /**< Write shaders to files */
3091 #define GLSL_UNIFORMS 0x4 /**< Print glUniform calls */
3092 #define GLSL_NOP_VERT 0x8 /**< Force no-op vertex shaders */
3093 #define GLSL_NOP_FRAG 0x10 /**< Force no-op fragment shaders */
3094 #define GLSL_USE_PROG 0x20 /**< Log glUseProgram calls */
3095 #define GLSL_REPORT_ERRORS 0x40 /**< Print compilation errors */
3096 #define GLSL_DUMP_ON_ERROR 0x80 /**< Dump shaders to stderr on compile error */
3097 #define GLSL_CACHE_INFO 0x100 /**< Print debug information about shader cache */
3098 #define GLSL_CACHE_FALLBACK 0x200 /**< Force shader cache fallback paths */
3102 * Context state for GLSL vertex/fragment shaders.
3103 * Extended to support pipeline object
3105 struct gl_pipeline_object
3107 /** Name of the pipeline object as received from glGenProgramPipelines.
3108 * It would be 0 for shaders without separate shader objects.
3114 GLchar
*Label
; /**< GL_KHR_debug */
3117 * Programs used for rendering
3119 * There is a separate program set for each shader stage.
3121 struct gl_program
*CurrentProgram
[MESA_SHADER_STAGES
];
3123 struct gl_shader_program
*ReferencedPrograms
[MESA_SHADER_STAGES
];
3126 * Program used by glUniform calls.
3128 * Explicitly set by \c glUseProgram and \c glActiveProgramEXT.
3130 struct gl_shader_program
*ActiveProgram
;
3132 GLbitfield Flags
; /**< Mask of GLSL_x flags */
3133 GLboolean EverBound
; /**< Has the pipeline object been created */
3134 GLboolean Validated
; /**< Pipeline Validation status */
3140 * Context state for GLSL pipeline shaders.
3142 struct gl_pipeline_shader_state
3144 /** Currently bound pipeline object. See _mesa_BindProgramPipeline() */
3145 struct gl_pipeline_object
*Current
;
3147 /** Default Object to ensure that _Shader is never NULL */
3148 struct gl_pipeline_object
*Default
;
3150 /** Pipeline objects */
3151 struct _mesa_HashTable
*Objects
;
3155 * Compiler options for a single GLSL shaders type
3157 struct gl_shader_compiler_options
3159 /** Driver-selectable options: */
3160 GLboolean EmitNoLoops
;
3161 GLboolean EmitNoCont
; /**< Emit CONT opcode? */
3162 GLboolean EmitNoMainReturn
; /**< Emit CONT/RET opcodes? */
3163 GLboolean EmitNoPow
; /**< Emit POW opcodes? */
3164 GLboolean EmitNoSat
; /**< Emit SAT opcodes? */
3165 GLboolean LowerCombinedClipCullDistance
; /** Lower gl_ClipDistance and
3166 * gl_CullDistance together from
3167 * float[8] to vec4[2]
3171 * \name Forms of indirect addressing the driver cannot do.
3174 GLboolean EmitNoIndirectInput
; /**< No indirect addressing of inputs */
3175 GLboolean EmitNoIndirectOutput
; /**< No indirect addressing of outputs */
3176 GLboolean EmitNoIndirectTemp
; /**< No indirect addressing of temps */
3177 GLboolean EmitNoIndirectUniform
; /**< No indirect addressing of constants */
3178 GLboolean EmitNoIndirectSampler
; /**< No indirect addressing of samplers */
3181 GLuint MaxIfDepth
; /**< Maximum nested IF blocks */
3182 GLuint MaxUnrollIterations
;
3185 * Optimize code for array of structures backends.
3187 * This is a proxy for:
3188 * - preferring DP4 instructions (rather than MUL/MAD) for
3189 * matrix * vector operations, such as position transformation.
3191 GLboolean OptimizeForAOS
;
3193 /** Lower UBO and SSBO access to intrinsics. */
3194 GLboolean LowerBufferInterfaceBlocks
;
3196 /** Clamp UBO and SSBO block indices so they don't go out-of-bounds. */
3197 GLboolean ClampBlockIndicesToArrayBounds
;
3199 const struct nir_shader_compiler_options
*NirOptions
;
3204 * Occlusion/timer query object.
3206 struct gl_query_object
3208 GLenum Target
; /**< The query target, when active */
3209 GLuint Id
; /**< hash table ID/name */
3210 GLchar
*Label
; /**< GL_KHR_debug */
3211 GLuint64EXT Result
; /**< the counter */
3212 GLboolean Active
; /**< inside Begin/EndQuery */
3213 GLboolean Ready
; /**< result is ready? */
3214 GLboolean EverBound
;/**< has query object ever been bound */
3215 GLuint Stream
; /**< The stream */
3220 * Context state for query objects.
3222 struct gl_query_state
3224 struct _mesa_HashTable
*QueryObjects
;
3225 struct gl_query_object
*CurrentOcclusionObject
; /* GL_ARB_occlusion_query */
3226 struct gl_query_object
*CurrentTimerObject
; /* GL_EXT_timer_query */
3228 /** GL_NV_conditional_render */
3229 struct gl_query_object
*CondRenderQuery
;
3231 /** GL_EXT_transform_feedback */
3232 struct gl_query_object
*PrimitivesGenerated
[MAX_VERTEX_STREAMS
];
3233 struct gl_query_object
*PrimitivesWritten
[MAX_VERTEX_STREAMS
];
3235 /** GL_ARB_transform_feedback_overflow_query */
3236 struct gl_query_object
*TransformFeedbackOverflow
[MAX_VERTEX_STREAMS
];
3237 struct gl_query_object
*TransformFeedbackOverflowAny
;
3239 /** GL_ARB_timer_query */
3240 struct gl_query_object
*TimeElapsed
;
3242 /** GL_ARB_pipeline_statistics_query */
3243 struct gl_query_object
*pipeline_stats
[MAX_PIPELINE_STATISTICS
];
3245 GLenum16 CondRenderMode
;
3249 /** Sync object state */
3250 struct gl_sync_object
3252 GLuint Name
; /**< Fence name */
3253 GLint RefCount
; /**< Reference count */
3254 GLchar
*Label
; /**< GL_KHR_debug */
3255 GLboolean DeletePending
; /**< Object was deleted while there were still
3256 * live references (e.g., sync not yet finished)
3258 GLenum16 SyncCondition
;
3259 GLbitfield Flags
; /**< Flags passed to glFenceSync */
3260 GLuint StatusFlag
:1; /**< Has the sync object been signaled? */
3265 * State which can be shared by multiple contexts:
3267 struct gl_shared_state
3269 simple_mtx_t Mutex
; /**< for thread safety */
3270 GLint RefCount
; /**< Reference count */
3271 struct _mesa_HashTable
*DisplayList
; /**< Display lists hash table */
3272 struct _mesa_HashTable
*BitmapAtlas
; /**< For optimized glBitmap text */
3273 struct _mesa_HashTable
*TexObjects
; /**< Texture objects hash table */
3275 /** Default texture objects (shared by all texture units) */
3276 struct gl_texture_object
*DefaultTex
[NUM_TEXTURE_TARGETS
];
3278 /** Fallback texture used when a bound texture is incomplete */
3279 struct gl_texture_object
*FallbackTex
[NUM_TEXTURE_TARGETS
];
3282 * \name Thread safety and statechange notification for texture
3285 * \todo Improve the granularity of locking.
3288 mtx_t TexMutex
; /**< texobj thread safety */
3289 GLuint TextureStateStamp
; /**< state notification for shared tex */
3292 /** Default buffer object for vertex arrays that aren't in VBOs */
3293 struct gl_buffer_object
*NullBufferObj
;
3296 * \name Vertex/geometry/fragment programs
3299 struct _mesa_HashTable
*Programs
; /**< All vertex/fragment programs */
3300 struct gl_program
*DefaultVertexProgram
;
3301 struct gl_program
*DefaultFragmentProgram
;
3304 /* GL_ATI_fragment_shader */
3305 struct _mesa_HashTable
*ATIShaders
;
3306 struct ati_fragment_shader
*DefaultFragmentShader
;
3308 struct _mesa_HashTable
*BufferObjects
;
3310 /** Table of both gl_shader and gl_shader_program objects */
3311 struct _mesa_HashTable
*ShaderObjects
;
3313 /* GL_EXT_framebuffer_object */
3314 struct _mesa_HashTable
*RenderBuffers
;
3315 struct _mesa_HashTable
*FrameBuffers
;
3318 struct set
*SyncObjects
;
3320 /** GL_ARB_sampler_objects */
3321 struct _mesa_HashTable
*SamplerObjects
;
3323 /* GL_ARB_bindless_texture */
3324 struct hash_table_u64
*TextureHandles
;
3325 struct hash_table_u64
*ImageHandles
;
3326 mtx_t HandlesMutex
; /**< For texture/image handles safety */
3329 * Some context in this share group was affected by a GPU reset
3331 * On the next call to \c glGetGraphicsResetStatus, contexts that have not
3332 * been affected by a GPU reset must also return
3333 * \c GL_INNOCENT_CONTEXT_RESET_ARB.
3335 * Once this field becomes true, it is never reset to false.
3337 bool ShareGroupReset
;
3339 /** EXT_external_objects */
3340 struct _mesa_HashTable
*MemoryObjects
;
3342 /** EXT_semaphore */
3343 struct _mesa_HashTable
*SemaphoreObjects
;
3346 * Some context in this share group was affected by a disjoint
3347 * operation. This operation can be anything that has effects on
3348 * values of timer queries in such manner that they become invalid for
3349 * performance metrics. As example gpu reset, counter overflow or gpu
3350 * frequency changes.
3352 bool DisjointOperation
;
3358 * Renderbuffers represent drawing surfaces such as color, depth and/or
3359 * stencil. A framebuffer object has a set of renderbuffers.
3360 * Drivers will typically derive subclasses of this type.
3362 struct gl_renderbuffer
3364 simple_mtx_t Mutex
; /**< for thread safety */
3365 GLuint ClassID
; /**< Useful for drivers */
3367 GLchar
*Label
; /**< GL_KHR_debug */
3369 GLuint Width
, Height
;
3371 GLboolean Purgeable
; /**< Is the buffer purgeable under memory pressure? */
3372 GLboolean AttachedAnytime
; /**< TRUE if it was attached to a framebuffer */
3374 * True for renderbuffers that wrap textures, giving the driver a chance to
3375 * flush render caches through the FinishRenderTexture hook.
3377 * Drivers may also set this on renderbuffers other than those generated by
3378 * glFramebufferTexture(), though it means FinishRenderTexture() would be
3379 * called without a rb->TexImage.
3381 GLboolean NeedsFinishRenderTexture
;
3382 GLubyte NumSamples
; /**< zero means not multisampled */
3383 GLenum16 InternalFormat
; /**< The user-specified format */
3384 GLenum16 _BaseFormat
; /**< Either GL_RGB, GL_RGBA, GL_DEPTH_COMPONENT or
3385 GL_STENCIL_INDEX. */
3386 mesa_format Format
; /**< The actual renderbuffer memory format */
3388 * Pointer to the texture image if this renderbuffer wraps a texture,
3391 * Note that the reference on the gl_texture_object containing this
3392 * TexImage is held by the gl_renderbuffer_attachment.
3394 struct gl_texture_image
*TexImage
;
3396 /** Delete this renderbuffer */
3397 void (*Delete
)(struct gl_context
*ctx
, struct gl_renderbuffer
*rb
);
3399 /** Allocate new storage for this renderbuffer */
3400 GLboolean (*AllocStorage
)(struct gl_context
*ctx
,
3401 struct gl_renderbuffer
*rb
,
3402 GLenum internalFormat
,
3403 GLuint width
, GLuint height
);
3408 * A renderbuffer attachment points to either a texture object (and specifies
3409 * a mipmap level, cube face or 3D texture slice) or points to a renderbuffer.
3411 struct gl_renderbuffer_attachment
3413 GLenum16 Type
; /**< \c GL_NONE or \c GL_TEXTURE or \c GL_RENDERBUFFER_EXT */
3417 * If \c Type is \c GL_RENDERBUFFER_EXT, this stores a pointer to the
3418 * application supplied renderbuffer object.
3420 struct gl_renderbuffer
*Renderbuffer
;
3423 * If \c Type is \c GL_TEXTURE, this stores a pointer to the application
3424 * supplied texture object.
3426 struct gl_texture_object
*Texture
;
3427 GLuint TextureLevel
; /**< Attached mipmap level. */
3428 GLuint CubeMapFace
; /**< 0 .. 5, for cube map textures. */
3429 GLuint Zoffset
; /**< Slice for 3D textures, or layer for both 1D
3430 * and 2D array textures */
3436 * A framebuffer is a collection of renderbuffers (color, depth, stencil, etc).
3437 * In C++ terms, think of this as a base class from which device drivers
3438 * will make derived classes.
3440 struct gl_framebuffer
3442 simple_mtx_t Mutex
; /**< for thread safety */
3444 * If zero, this is a window system framebuffer. If non-zero, this
3445 * is a FBO framebuffer; note that for some devices (i.e. those with
3446 * a natural pixel coordinate system for FBOs that differs from the
3447 * OpenGL/Mesa coordinate system), this means that the viewport,
3448 * polygon face orientation, and polygon stipple will have to be inverted.
3453 GLchar
*Label
; /**< GL_KHR_debug */
3455 GLboolean DeletePending
;
3458 * The framebuffer's visual. Immutable if this is a window system buffer.
3459 * Computed from attachments if user-made FBO.
3461 struct gl_config Visual
;
3464 * Size of frame buffer in pixels. If there are no attachments, then both
3467 GLuint Width
, Height
;
3470 * In the case that the framebuffer has no attachment (i.e.
3471 * GL_ARB_framebuffer_no_attachments) then the geometry of
3472 * the framebuffer is specified by the default values.
3475 GLuint Width
, Height
, Layers
, NumSamples
;
3476 GLboolean FixedSampleLocations
;
3477 /* Derived from NumSamples by the driver so that it can choose a valid
3478 * value for the hardware.
3483 /** \name Drawing bounds (Intersection of buffer size and scissor box)
3484 * The drawing region is given by [_Xmin, _Xmax) x [_Ymin, _Ymax),
3485 * (inclusive for _Xmin and _Ymin while exclusive for _Xmax and _Ymax)
3492 /** \name Derived Z buffer stuff */
3494 GLuint _DepthMax
; /**< Max depth buffer value */
3495 GLfloat _DepthMaxF
; /**< Float max depth buffer value */
3496 GLfloat _MRD
; /**< minimum resolvable difference in Z values */
3499 /** One of the GL_FRAMEBUFFER_(IN)COMPLETE_* tokens */
3502 /** Whether one of Attachment has Type != GL_NONE
3503 * NOTE: the values for Width and Height are set to 0 in case of having
3504 * no attachments, a backend driver supporting the extension
3505 * GL_ARB_framebuffer_no_attachments must check for the flag _HasAttachments
3506 * and if GL_FALSE, must then use the values in DefaultGeometry to initialize
3507 * its viewport, scissor and so on (in particular _Xmin, _Xmax, _Ymin and
3508 * _Ymax do NOT take into account _HasAttachments being false). To get the
3509 * geometry of the framebuffer, the helper functions
3510 * _mesa_geometric_width(),
3511 * _mesa_geometric_height(),
3512 * _mesa_geometric_samples() and
3513 * _mesa_geometric_layers()
3514 * are available that check _HasAttachments.
3516 bool _HasAttachments
;
3518 GLbitfield _IntegerBuffers
; /**< Which color buffers are integer valued */
3520 /* ARB_color_buffer_float */
3521 GLboolean _AllColorBuffersFixedPoint
; /* no integer, no float */
3522 GLboolean _HasSNormOrFloatColorBuffer
;
3525 * The maximum number of layers in the framebuffer, or 0 if the framebuffer
3526 * is not layered. For cube maps and cube map arrays, each cube face
3527 * counts as a layer. As the case for Width, Height a backend driver
3528 * supporting GL_ARB_framebuffer_no_attachments must use DefaultGeometry
3529 * in the case that _HasAttachments is false
3531 GLuint MaxNumLayers
;
3533 /** Array of all renderbuffer attachments, indexed by BUFFER_* tokens. */
3534 struct gl_renderbuffer_attachment Attachment
[BUFFER_COUNT
];
3536 /* In unextended OpenGL these vars are part of the GL_COLOR_BUFFER
3537 * attribute group and GL_PIXEL attribute group, respectively.
3539 GLenum16 ColorDrawBuffer
[MAX_DRAW_BUFFERS
];
3540 GLenum16 ColorReadBuffer
;
3542 /** Computed from ColorDraw/ReadBuffer above */
3543 GLuint _NumColorDrawBuffers
;
3544 gl_buffer_index _ColorDrawBufferIndexes
[MAX_DRAW_BUFFERS
];
3545 gl_buffer_index _ColorReadBufferIndex
;
3546 struct gl_renderbuffer
*_ColorDrawBuffers
[MAX_DRAW_BUFFERS
];
3547 struct gl_renderbuffer
*_ColorReadBuffer
;
3549 /** Delete this framebuffer */
3550 void (*Delete
)(struct gl_framebuffer
*fb
);
3555 * Precision info for shader datatypes. See glGetShaderPrecisionFormat().
3559 GLushort RangeMin
; /**< min value exponent */
3560 GLushort RangeMax
; /**< max value exponent */
3561 GLushort Precision
; /**< number of mantissa bits */
3566 * Limits for vertex, geometry and fragment programs/shaders.
3568 struct gl_program_constants
3570 /* logical limits */
3571 GLuint MaxInstructions
;
3572 GLuint MaxAluInstructions
;
3573 GLuint MaxTexInstructions
;
3574 GLuint MaxTexIndirections
;
3577 GLuint MaxAddressRegs
;
3578 GLuint MaxAddressOffset
; /**< [-MaxAddressOffset, MaxAddressOffset-1] */
3579 GLuint MaxParameters
;
3580 GLuint MaxLocalParams
;
3581 GLuint MaxEnvParams
;
3582 /* native/hardware limits */
3583 GLuint MaxNativeInstructions
;
3584 GLuint MaxNativeAluInstructions
;
3585 GLuint MaxNativeTexInstructions
;
3586 GLuint MaxNativeTexIndirections
;
3587 GLuint MaxNativeAttribs
;
3588 GLuint MaxNativeTemps
;
3589 GLuint MaxNativeAddressRegs
;
3590 GLuint MaxNativeParameters
;
3592 GLuint MaxUniformComponents
; /**< Usually == MaxParameters * 4 */
3595 * \name Per-stage input / output limits
3597 * Previous to OpenGL 3.2, the intrastage data limits were advertised with
3598 * a single value: GL_MAX_VARYING_COMPONENTS (GL_MAX_VARYING_VECTORS in
3599 * ES). This is stored as \c gl_constants::MaxVarying.
3601 * Starting with OpenGL 3.2, the limits are advertised with per-stage
3602 * variables. Each stage as a certain number of outputs that it can feed
3603 * to the next stage and a certain number inputs that it can consume from
3604 * the previous stage.
3606 * Vertex shader inputs do not participate this in this accounting.
3607 * These are tracked exclusively by \c gl_program_constants::MaxAttribs.
3609 * Fragment shader outputs do not participate this in this accounting.
3610 * These are tracked exclusively by \c gl_constants::MaxDrawBuffers.
3613 GLuint MaxInputComponents
;
3614 GLuint MaxOutputComponents
;
3617 /* ES 2.0 and GL_ARB_ES2_compatibility */
3618 struct gl_precision LowFloat
, MediumFloat
, HighFloat
;
3619 struct gl_precision LowInt
, MediumInt
, HighInt
;
3620 /* GL_ARB_uniform_buffer_object */
3621 GLuint MaxUniformBlocks
;
3622 GLuint MaxCombinedUniformComponents
;
3623 GLuint MaxTextureImageUnits
;
3625 /* GL_ARB_shader_atomic_counters */
3626 GLuint MaxAtomicBuffers
;
3627 GLuint MaxAtomicCounters
;
3629 /* GL_ARB_shader_image_load_store */
3630 GLuint MaxImageUniforms
;
3632 /* GL_ARB_shader_storage_buffer_object */
3633 GLuint MaxShaderStorageBlocks
;
3637 * Constants which may be overridden by device driver during context creation
3638 * but are never changed after that.
3642 GLuint MaxTextureMbytes
; /**< Max memory per image, in MB */
3643 GLuint MaxTextureLevels
; /**< Max mipmap levels. */
3644 GLuint Max3DTextureLevels
; /**< Max mipmap levels for 3D textures */
3645 GLuint MaxCubeTextureLevels
; /**< Max mipmap levels for cube textures */
3646 GLuint MaxArrayTextureLayers
; /**< Max layers in array textures */
3647 GLuint MaxTextureRectSize
; /**< Max rectangle texture size, in pixes */
3648 GLuint MaxTextureCoordUnits
;
3649 GLuint MaxCombinedTextureImageUnits
;
3650 GLuint MaxTextureUnits
; /**< = MIN(CoordUnits, FragmentProgram.ImageUnits) */
3651 GLfloat MaxTextureMaxAnisotropy
; /**< GL_EXT_texture_filter_anisotropic */
3652 GLfloat MaxTextureLodBias
; /**< GL_EXT_texture_lod_bias */
3653 GLuint MaxTextureBufferSize
; /**< GL_ARB_texture_buffer_object */
3655 GLuint TextureBufferOffsetAlignment
; /**< GL_ARB_texture_buffer_range */
3657 GLuint MaxArrayLockSize
;
3661 GLfloat MinPointSize
, MaxPointSize
; /**< aliased */
3662 GLfloat MinPointSizeAA
, MaxPointSizeAA
; /**< antialiased */
3663 GLfloat PointSizeGranularity
;
3664 GLfloat MinLineWidth
, MaxLineWidth
; /**< aliased */
3665 GLfloat MinLineWidthAA
, MaxLineWidthAA
; /**< antialiased */
3666 GLfloat LineWidthGranularity
;
3668 GLuint MaxClipPlanes
;
3670 GLfloat MaxShininess
; /**< GL_NV_light_max_exponent */
3671 GLfloat MaxSpotExponent
; /**< GL_NV_light_max_exponent */
3673 GLuint MaxViewportWidth
, MaxViewportHeight
;
3674 GLuint MaxViewports
; /**< GL_ARB_viewport_array */
3675 GLuint ViewportSubpixelBits
; /**< GL_ARB_viewport_array */
3679 } ViewportBounds
; /**< GL_ARB_viewport_array */
3680 GLuint MaxWindowRectangles
; /**< GL_EXT_window_rectangles */
3682 struct gl_program_constants Program
[MESA_SHADER_STAGES
];
3683 GLuint MaxProgramMatrices
;
3684 GLuint MaxProgramMatrixStackDepth
;
3687 GLuint SamplesPassed
;
3690 GLuint PrimitivesGenerated
;
3691 GLuint PrimitivesWritten
;
3692 GLuint VerticesSubmitted
;
3693 GLuint PrimitivesSubmitted
;
3694 GLuint VsInvocations
;
3696 GLuint TessInvocations
;
3697 GLuint GsInvocations
;
3698 GLuint GsPrimitives
;
3699 GLuint FsInvocations
;
3700 GLuint ComputeInvocations
;
3701 GLuint ClInPrimitives
;
3702 GLuint ClOutPrimitives
;
3705 GLuint MaxDrawBuffers
; /**< GL_ARB_draw_buffers */
3707 GLuint MaxColorAttachments
; /**< GL_EXT_framebuffer_object */
3708 GLuint MaxRenderbufferSize
; /**< GL_EXT_framebuffer_object */
3709 GLuint MaxSamples
; /**< GL_ARB_framebuffer_object */
3712 * GL_ARB_framebuffer_no_attachments
3714 GLuint MaxFramebufferWidth
;
3715 GLuint MaxFramebufferHeight
;
3716 GLuint MaxFramebufferLayers
;
3717 GLuint MaxFramebufferSamples
;
3719 /** Number of varying vectors between any two shader stages. */
3723 * GL_ARB_uniform_buffer_object
3725 GLuint MaxCombinedUniformBlocks
;
3726 GLuint MaxUniformBufferBindings
;
3727 GLuint MaxUniformBlockSize
;
3728 GLuint UniformBufferOffsetAlignment
;
3732 * GL_ARB_shader_storage_buffer_object
3734 GLuint MaxCombinedShaderStorageBlocks
;
3735 GLuint MaxShaderStorageBufferBindings
;
3736 GLuint MaxShaderStorageBlockSize
;
3737 GLuint ShaderStorageBufferOffsetAlignment
;
3741 * GL_ARB_explicit_uniform_location
3743 GLuint MaxUserAssignableUniformLocations
;
3745 /** geometry shader */
3746 GLuint MaxGeometryOutputVertices
;
3747 GLuint MaxGeometryTotalOutputComponents
;
3749 GLuint GLSLVersion
; /**< Desktop GLSL version supported (ex: 120 = 1.20) */
3752 * Changes default GLSL extension behavior from "error" to "warn". It's out
3753 * of spec, but it can make some apps work that otherwise wouldn't.
3755 GLboolean ForceGLSLExtensionsWarn
;
3758 * If non-zero, forces GLSL shaders to behave as if they began
3759 * with "#version ForceGLSLVersion".
3761 GLuint ForceGLSLVersion
;
3764 * Allow GLSL #extension directives in the middle of shaders.
3766 GLboolean AllowGLSLExtensionDirectiveMidShader
;
3769 * Allow GLSL built-in variables to be redeclared verbatim
3771 GLboolean AllowGLSLBuiltinVariableRedeclaration
;
3774 * Allow GLSL interpolation qualifier mismatch across shader stages.
3776 GLboolean AllowGLSLCrossStageInterpolationMismatch
;
3779 * Allow creating a higher compat profile (version 3.1+) for apps that
3780 * request it. Be careful when adding that driconf option because some
3781 * features are unimplemented and might not work correctly.
3783 GLboolean AllowHigherCompatVersion
;
3786 * Force computing the absolute value for sqrt() and inversesqrt() to follow
3787 * D3D9 when apps rely on this behaviour.
3789 GLboolean ForceGLSLAbsSqrt
;
3792 * Force uninitialized variables to default to zero.
3794 GLboolean GLSLZeroInit
;
3797 * Does the driver support real 32-bit integers? (Otherwise, integers are
3798 * simulated via floats.)
3800 GLboolean NativeIntegers
;
3803 * Does VertexID count from zero or from base vertex?
3806 * If desktop GLSL 1.30 or GLSL ES 3.00 are not supported, this field is
3807 * ignored and need not be set.
3809 bool VertexID_is_zero_based
;
3812 * If the driver supports real 32-bit integers, what integer value should be
3813 * used for boolean true in uniform uploads? (Usually 1 or ~0.)
3815 GLuint UniformBooleanTrue
;
3818 * Maximum amount of time, measured in nanseconds, that the server can wait.
3820 GLuint64 MaxServerWaitTimeout
;
3822 /** GL_EXT_provoking_vertex */
3823 GLboolean QuadsFollowProvokingVertexConvention
;
3825 /** GL_ARB_viewport_array */
3826 GLenum16 LayerAndVPIndexProvokingVertex
;
3828 /** OpenGL version 3.0 */
3829 GLbitfield ContextFlags
; /**< Ex: GL_CONTEXT_FLAG_FORWARD_COMPATIBLE_BIT */
3831 /** OpenGL version 3.2 */
3832 GLbitfield ProfileMask
; /**< Mask of CONTEXT_x_PROFILE_BIT */
3834 /** OpenGL version 4.4 */
3835 GLuint MaxVertexAttribStride
;
3837 /** GL_EXT_transform_feedback */
3838 GLuint MaxTransformFeedbackBuffers
;
3839 GLuint MaxTransformFeedbackSeparateComponents
;
3840 GLuint MaxTransformFeedbackInterleavedComponents
;
3841 GLuint MaxVertexStreams
;
3843 /** GL_EXT_gpu_shader4 */
3844 GLint MinProgramTexelOffset
, MaxProgramTexelOffset
;
3846 /** GL_ARB_texture_gather */
3847 GLuint MinProgramTextureGatherOffset
;
3848 GLuint MaxProgramTextureGatherOffset
;
3849 GLuint MaxProgramTextureGatherComponents
;
3851 /* GL_ARB_robustness */
3852 GLenum16 ResetStrategy
;
3854 /* GL_KHR_robustness */
3855 GLboolean RobustAccess
;
3857 /* GL_ARB_blend_func_extended */
3858 GLuint MaxDualSourceDrawBuffers
;
3861 * Whether the implementation strips out and ignores texture borders.
3863 * Many GPU hardware implementations don't support rendering with texture
3864 * borders and mipmapped textures. (Note: not static border color, but the
3865 * old 1-pixel border around each edge). Implementations then have to do
3866 * slow fallbacks to be correct, or just ignore the border and be fast but
3867 * wrong. Setting the flag strips the border off of TexImage calls,
3868 * providing "fast but wrong" at significantly reduced driver complexity.
3870 * Texture borders are deprecated in GL 3.0.
3872 GLboolean StripTextureBorder
;
3875 * For drivers which can do a better job at eliminating unused uniforms
3876 * than the GLSL compiler.
3878 * XXX Remove these as soon as a better solution is available.
3880 GLboolean GLSLSkipStrictMaxUniformLimitCheck
;
3882 /** Whether gl_FragCoord and gl_FrontFacing are system values. */
3883 bool GLSLFragCoordIsSysVal
;
3884 bool GLSLFrontFacingIsSysVal
;
3887 * Run the minimum amount of GLSL optimizations to be able to link
3888 * shaders optimally (eliminate dead varyings and uniforms) and just do
3889 * all the necessary lowering.
3891 bool GLSLOptimizeConservatively
;
3894 * True if gl_TessLevelInner/Outer[] in the TES should be inputs
3895 * (otherwise, they're system values).
3897 bool GLSLTessLevelsAsInputs
;
3900 * Always use the GetTransformFeedbackVertexCount() driver hook, rather
3901 * than passing the transform feedback object to the drawing function.
3903 GLboolean AlwaysUseGetTransformFeedbackVertexCount
;
3905 /** GL_ARB_map_buffer_alignment */
3906 GLuint MinMapBufferAlignment
;
3909 * Disable varying packing. This is out of spec, but potentially useful
3910 * for older platforms that supports a limited number of texture
3911 * indirections--on these platforms, unpacking the varyings in the fragment
3912 * shader increases the number of texture indirections by 1, which might
3913 * make some shaders not executable at all.
3915 * Drivers that support transform feedback must set this value to GL_FALSE.
3917 GLboolean DisableVaryingPacking
;
3920 * UBOs and SSBOs can be packed tightly by the OpenGL implementation when
3921 * layout is set as shared (the default) or packed. However most Mesa drivers
3922 * just use STD140 for these layouts. This flag allows drivers to use STD430
3923 * for packed and shared layouts which allows arrays to be packed more
3926 bool UseSTD430AsDefaultPacking
;
3929 * Should meaningful names be generated for compiler temporary variables?
3931 * Generally, it is not useful to have the compiler generate "meaningful"
3932 * names for temporary variables that it creates. This can, however, be a
3933 * useful debugging aid. In Mesa debug builds or release builds when
3934 * MESA_GLSL is set at run-time, meaningful names will be generated.
3935 * Drivers can also force names to be generated by setting this field.
3936 * For example, the i965 driver may set it when INTEL_DEBUG=vs (to dump
3937 * vertex shader assembly) is set at run-time.
3939 bool GenerateTemporaryNames
;
3942 * Maximum value supported for an index in DrawElements and friends.
3944 * This must be at least (1ull<<24)-1. The default value is
3947 * \since ES 3.0 or GL_ARB_ES3_compatibility
3948 * \sa _mesa_init_constants
3950 GLuint64 MaxElementIndex
;
3953 * Disable interpretation of line continuations (lines ending with a
3954 * backslash character ('\') in GLSL source.
3956 GLboolean DisableGLSLLineContinuations
;
3958 /** GL_ARB_texture_multisample */
3959 GLint MaxColorTextureSamples
;
3960 GLint MaxDepthTextureSamples
;
3961 GLint MaxIntegerSamples
;
3964 * GL_EXT_texture_multisample_blit_scaled implementation assumes that
3965 * samples are laid out in a rectangular grid roughly corresponding to
3966 * sample locations within a pixel. Below SampleMap{2,4,8}x variables
3967 * are used to map indices of rectangular grid to sample numbers within
3968 * a pixel. This mapping of indices to sample numbers must be initialized
3969 * by the driver for the target hardware. For example, if we have the 8X
3970 * MSAA sample number layout (sample positions) for XYZ hardware:
3972 * sample indices layout sample number layout
3973 * --------- ---------
3974 * | 0 | 1 | | a | b |
3975 * --------- ---------
3976 * | 2 | 3 | | c | d |
3977 * --------- ---------
3978 * | 4 | 5 | | e | f |
3979 * --------- ---------
3980 * | 6 | 7 | | g | h |
3981 * --------- ---------
3983 * Where a,b,c,d,e,f,g,h are integers between [0-7].
3985 * Then, initialize the SampleMap8x variable for XYZ hardware as shown
3987 * SampleMap8x = {a, b, c, d, e, f, g, h};
3989 * Follow the logic for sample counts 2-8.
3991 * For 16x the sample indices layout as a 4x4 grid as follows:
4003 uint8_t SampleMap2x
[2];
4004 uint8_t SampleMap4x
[4];
4005 uint8_t SampleMap8x
[8];
4006 uint8_t SampleMap16x
[16];
4008 /** GL_ARB_shader_atomic_counters */
4009 GLuint MaxAtomicBufferBindings
;
4010 GLuint MaxAtomicBufferSize
;
4011 GLuint MaxCombinedAtomicBuffers
;
4012 GLuint MaxCombinedAtomicCounters
;
4014 /** GL_ARB_vertex_attrib_binding */
4015 GLint MaxVertexAttribRelativeOffset
;
4016 GLint MaxVertexAttribBindings
;
4018 /* GL_ARB_shader_image_load_store */
4019 GLuint MaxImageUnits
;
4020 GLuint MaxCombinedShaderOutputResources
;
4021 GLuint MaxImageSamples
;
4022 GLuint MaxCombinedImageUniforms
;
4024 /** GL_ARB_compute_shader */
4025 GLuint MaxComputeWorkGroupCount
[3]; /* Array of x, y, z dimensions */
4026 GLuint MaxComputeWorkGroupSize
[3]; /* Array of x, y, z dimensions */
4027 GLuint MaxComputeWorkGroupInvocations
;
4028 GLuint MaxComputeSharedMemorySize
;
4030 /** GL_ARB_compute_variable_group_size */
4031 GLuint MaxComputeVariableGroupSize
[3]; /* Array of x, y, z dimensions */
4032 GLuint MaxComputeVariableGroupInvocations
;
4034 /** GL_ARB_gpu_shader5 */
4035 GLfloat MinFragmentInterpolationOffset
;
4036 GLfloat MaxFragmentInterpolationOffset
;
4038 GLboolean FakeSWMSAA
;
4040 /** GL_KHR_context_flush_control */
4041 GLenum16 ContextReleaseBehavior
;
4043 struct gl_shader_compiler_options ShaderCompilerOptions
[MESA_SHADER_STAGES
];
4045 /** GL_ARB_tessellation_shader */
4046 GLuint MaxPatchVertices
;
4047 GLuint MaxTessGenLevel
;
4048 GLuint MaxTessPatchComponents
;
4049 GLuint MaxTessControlTotalOutputComponents
;
4050 bool LowerTessLevel
; /**< Lower gl_TessLevel* from float[n] to vecn? */
4051 bool PrimitiveRestartForPatches
;
4052 bool LowerCsDerivedVariables
; /**< Lower gl_GlobalInvocationID and
4053 * gl_LocalInvocationIndex based on
4054 * other builtin variables. */
4056 /** GL_OES_primitive_bounding_box */
4057 bool NoPrimitiveBoundingBoxOutput
;
4059 /** GL_ARB_sparse_buffer */
4060 GLuint SparseBufferPageSize
;
4062 /** Used as an input for sha1 generation in the on-disk shader cache */
4063 unsigned char *dri_config_options_sha1
;
4065 /** When drivers are OK with mapped buffers during draw and other calls. */
4066 bool AllowMappedBuffersDuringExecution
;
4068 /** GL_ARB_get_program_binary */
4069 GLuint NumProgramBinaryFormats
;
4074 * Enable flag for each OpenGL extension. Different device drivers will
4075 * enable different extensions at runtime.
4077 struct gl_extensions
4079 GLboolean dummy
; /* don't remove this! */
4080 GLboolean dummy_true
; /* Set true by _mesa_init_extensions(). */
4081 GLboolean dummy_false
; /* Set false by _mesa_init_extensions(). */
4082 GLboolean ANGLE_texture_compression_dxt
;
4083 GLboolean ARB_ES2_compatibility
;
4084 GLboolean ARB_ES3_compatibility
;
4085 GLboolean ARB_ES3_1_compatibility
;
4086 GLboolean ARB_ES3_2_compatibility
;
4087 GLboolean ARB_arrays_of_arrays
;
4088 GLboolean ARB_base_instance
;
4089 GLboolean ARB_bindless_texture
;
4090 GLboolean ARB_blend_func_extended
;
4091 GLboolean ARB_buffer_storage
;
4092 GLboolean ARB_clear_texture
;
4093 GLboolean ARB_clip_control
;
4094 GLboolean ARB_color_buffer_float
;
4095 GLboolean ARB_compute_shader
;
4096 GLboolean ARB_compute_variable_group_size
;
4097 GLboolean ARB_conditional_render_inverted
;
4098 GLboolean ARB_conservative_depth
;
4099 GLboolean ARB_copy_image
;
4100 GLboolean ARB_cull_distance
;
4101 GLboolean ARB_depth_buffer_float
;
4102 GLboolean ARB_depth_clamp
;
4103 GLboolean ARB_depth_texture
;
4104 GLboolean ARB_derivative_control
;
4105 GLboolean ARB_draw_buffers_blend
;
4106 GLboolean ARB_draw_elements_base_vertex
;
4107 GLboolean ARB_draw_indirect
;
4108 GLboolean ARB_draw_instanced
;
4109 GLboolean ARB_fragment_coord_conventions
;
4110 GLboolean ARB_fragment_layer_viewport
;
4111 GLboolean ARB_fragment_program
;
4112 GLboolean ARB_fragment_program_shadow
;
4113 GLboolean ARB_fragment_shader
;
4114 GLboolean ARB_framebuffer_no_attachments
;
4115 GLboolean ARB_framebuffer_object
;
4116 GLboolean ARB_enhanced_layouts
;
4117 GLboolean ARB_explicit_attrib_location
;
4118 GLboolean ARB_explicit_uniform_location
;
4119 GLboolean ARB_gl_spirv
;
4120 GLboolean ARB_gpu_shader5
;
4121 GLboolean ARB_gpu_shader_fp64
;
4122 GLboolean ARB_gpu_shader_int64
;
4123 GLboolean ARB_half_float_vertex
;
4124 GLboolean ARB_indirect_parameters
;
4125 GLboolean ARB_instanced_arrays
;
4126 GLboolean ARB_internalformat_query
;
4127 GLboolean ARB_internalformat_query2
;
4128 GLboolean ARB_map_buffer_range
;
4129 GLboolean ARB_occlusion_query
;
4130 GLboolean ARB_occlusion_query2
;
4131 GLboolean ARB_pipeline_statistics_query
;
4132 GLboolean ARB_point_sprite
;
4133 GLboolean ARB_polygon_offset_clamp
;
4134 GLboolean ARB_post_depth_coverage
;
4135 GLboolean ARB_query_buffer_object
;
4136 GLboolean ARB_robust_buffer_access_behavior
;
4137 GLboolean ARB_sample_shading
;
4138 GLboolean ARB_seamless_cube_map
;
4139 GLboolean ARB_shader_atomic_counter_ops
;
4140 GLboolean ARB_shader_atomic_counters
;
4141 GLboolean ARB_shader_ballot
;
4142 GLboolean ARB_shader_bit_encoding
;
4143 GLboolean ARB_shader_clock
;
4144 GLboolean ARB_shader_draw_parameters
;
4145 GLboolean ARB_shader_group_vote
;
4146 GLboolean ARB_shader_image_load_store
;
4147 GLboolean ARB_shader_image_size
;
4148 GLboolean ARB_shader_precision
;
4149 GLboolean ARB_shader_stencil_export
;
4150 GLboolean ARB_shader_storage_buffer_object
;
4151 GLboolean ARB_shader_texture_image_samples
;
4152 GLboolean ARB_shader_texture_lod
;
4153 GLboolean ARB_shader_viewport_layer_array
;
4154 GLboolean ARB_shading_language_packing
;
4155 GLboolean ARB_shading_language_420pack
;
4156 GLboolean ARB_shadow
;
4157 GLboolean ARB_sparse_buffer
;
4158 GLboolean ARB_stencil_texturing
;
4160 GLboolean ARB_tessellation_shader
;
4161 GLboolean ARB_texture_border_clamp
;
4162 GLboolean ARB_texture_buffer_object
;
4163 GLboolean ARB_texture_buffer_object_rgb32
;
4164 GLboolean ARB_texture_buffer_range
;
4165 GLboolean ARB_texture_compression_bptc
;
4166 GLboolean ARB_texture_compression_rgtc
;
4167 GLboolean ARB_texture_cube_map
;
4168 GLboolean ARB_texture_cube_map_array
;
4169 GLboolean ARB_texture_env_combine
;
4170 GLboolean ARB_texture_env_crossbar
;
4171 GLboolean ARB_texture_env_dot3
;
4172 GLboolean ARB_texture_filter_anisotropic
;
4173 GLboolean ARB_texture_float
;
4174 GLboolean ARB_texture_gather
;
4175 GLboolean ARB_texture_mirror_clamp_to_edge
;
4176 GLboolean ARB_texture_multisample
;
4177 GLboolean ARB_texture_non_power_of_two
;
4178 GLboolean ARB_texture_stencil8
;
4179 GLboolean ARB_texture_query_levels
;
4180 GLboolean ARB_texture_query_lod
;
4181 GLboolean ARB_texture_rg
;
4182 GLboolean ARB_texture_rgb10_a2ui
;
4183 GLboolean ARB_texture_view
;
4184 GLboolean ARB_timer_query
;
4185 GLboolean ARB_transform_feedback2
;
4186 GLboolean ARB_transform_feedback3
;
4187 GLboolean ARB_transform_feedback_instanced
;
4188 GLboolean ARB_transform_feedback_overflow_query
;
4189 GLboolean ARB_uniform_buffer_object
;
4190 GLboolean ARB_vertex_attrib_64bit
;
4191 GLboolean ARB_vertex_program
;
4192 GLboolean ARB_vertex_shader
;
4193 GLboolean ARB_vertex_type_10f_11f_11f_rev
;
4194 GLboolean ARB_vertex_type_2_10_10_10_rev
;
4195 GLboolean ARB_viewport_array
;
4196 GLboolean EXT_blend_color
;
4197 GLboolean EXT_blend_equation_separate
;
4198 GLboolean EXT_blend_func_separate
;
4199 GLboolean EXT_blend_minmax
;
4200 GLboolean EXT_depth_bounds_test
;
4201 GLboolean EXT_disjoint_timer_query
;
4202 GLboolean EXT_draw_buffers2
;
4203 GLboolean EXT_framebuffer_multisample
;
4204 GLboolean EXT_framebuffer_multisample_blit_scaled
;
4205 GLboolean EXT_framebuffer_sRGB
;
4206 GLboolean EXT_gpu_program_parameters
;
4207 GLboolean EXT_gpu_shader4
;
4208 GLboolean EXT_memory_object
;
4209 GLboolean EXT_memory_object_fd
;
4210 GLboolean EXT_packed_float
;
4211 GLboolean EXT_pixel_buffer_object
;
4212 GLboolean EXT_point_parameters
;
4213 GLboolean EXT_provoking_vertex
;
4214 GLboolean EXT_semaphore
;
4215 GLboolean EXT_semaphore_fd
;
4216 GLboolean EXT_shader_integer_mix
;
4217 GLboolean EXT_shader_samples_identical
;
4218 GLboolean EXT_stencil_two_side
;
4219 GLboolean EXT_texture_array
;
4220 GLboolean EXT_texture_compression_latc
;
4221 GLboolean EXT_texture_compression_s3tc
;
4222 GLboolean EXT_texture_env_dot3
;
4223 GLboolean EXT_texture_filter_anisotropic
;
4224 GLboolean EXT_texture_integer
;
4225 GLboolean EXT_texture_mirror_clamp
;
4226 GLboolean EXT_texture_shared_exponent
;
4227 GLboolean EXT_texture_snorm
;
4228 GLboolean EXT_texture_sRGB
;
4229 GLboolean EXT_texture_sRGB_decode
;
4230 GLboolean EXT_texture_swizzle
;
4231 GLboolean EXT_texture_type_2_10_10_10_REV
;
4232 GLboolean EXT_transform_feedback
;
4233 GLboolean EXT_timer_query
;
4234 GLboolean EXT_vertex_array_bgra
;
4235 GLboolean EXT_window_rectangles
;
4236 GLboolean OES_copy_image
;
4237 GLboolean OES_primitive_bounding_box
;
4238 GLboolean OES_sample_variables
;
4239 GLboolean OES_standard_derivatives
;
4240 GLboolean OES_texture_buffer
;
4241 GLboolean OES_texture_cube_map_array
;
4242 GLboolean OES_viewport_array
;
4243 /* vendor extensions */
4244 GLboolean AMD_performance_monitor
;
4245 GLboolean AMD_pinned_memory
;
4246 GLboolean AMD_seamless_cubemap_per_texture
;
4247 GLboolean AMD_vertex_shader_layer
;
4248 GLboolean AMD_vertex_shader_viewport_index
;
4249 GLboolean ANDROID_extension_pack_es31a
;
4250 GLboolean APPLE_object_purgeable
;
4251 GLboolean ATI_meminfo
;
4252 GLboolean ATI_texture_compression_3dc
;
4253 GLboolean ATI_texture_mirror_once
;
4254 GLboolean ATI_texture_env_combine3
;
4255 GLboolean ATI_fragment_shader
;
4256 GLboolean ATI_separate_stencil
;
4257 GLboolean GREMEDY_string_marker
;
4258 GLboolean INTEL_conservative_rasterization
;
4259 GLboolean INTEL_performance_query
;
4260 GLboolean KHR_blend_equation_advanced
;
4261 GLboolean KHR_blend_equation_advanced_coherent
;
4262 GLboolean KHR_robustness
;
4263 GLboolean KHR_texture_compression_astc_hdr
;
4264 GLboolean KHR_texture_compression_astc_ldr
;
4265 GLboolean KHR_texture_compression_astc_sliced_3d
;
4266 GLboolean MESA_tile_raster_order
;
4267 GLboolean MESA_pack_invert
;
4268 GLboolean MESA_shader_framebuffer_fetch
;
4269 GLboolean MESA_shader_framebuffer_fetch_non_coherent
;
4270 GLboolean MESA_shader_integer_functions
;
4271 GLboolean MESA_ycbcr_texture
;
4272 GLboolean NV_conditional_render
;
4273 GLboolean NV_fill_rectangle
;
4274 GLboolean NV_fog_distance
;
4275 GLboolean NV_point_sprite
;
4276 GLboolean NV_primitive_restart
;
4277 GLboolean NV_texture_barrier
;
4278 GLboolean NV_texture_env_combine4
;
4279 GLboolean NV_texture_rectangle
;
4280 GLboolean NV_vdpau_interop
;
4281 GLboolean NVX_gpu_memory_info
;
4282 GLboolean TDFX_texture_compression_FXT1
;
4283 GLboolean OES_EGL_image
;
4284 GLboolean OES_draw_texture
;
4285 GLboolean OES_depth_texture_cube_map
;
4286 GLboolean OES_EGL_image_external
;
4287 GLboolean OES_texture_float
;
4288 GLboolean OES_texture_float_linear
;
4289 GLboolean OES_texture_half_float
;
4290 GLboolean OES_texture_half_float_linear
;
4291 GLboolean OES_compressed_ETC1_RGB8_texture
;
4292 GLboolean OES_geometry_shader
;
4293 GLboolean OES_texture_compression_astc
;
4294 GLboolean extension_sentinel
;
4295 /** The extension string */
4296 const GLubyte
*String
;
4297 /** Number of supported extensions */
4300 * The context version which extension helper functions compare against.
4301 * By default, the value is equal to ctx->Version. This changes to ~0
4302 * while meta is in progress.
4306 * Force-enabled, yet unrecognized, extensions.
4307 * See _mesa_one_time_init_extension_overrides()
4309 #define MAX_UNRECOGNIZED_EXTENSIONS 16
4310 const char *unrecognized_extensions
[MAX_UNRECOGNIZED_EXTENSIONS
];
4315 * A stack of matrices (projection, modelview, color, texture, etc).
4317 struct gl_matrix_stack
4319 GLmatrix
*Top
; /**< points into Stack */
4320 GLmatrix
*Stack
; /**< array [MaxDepth] of GLmatrix */
4321 unsigned StackSize
; /**< Number of elements in Stack */
4322 GLuint Depth
; /**< 0 <= Depth < MaxDepth */
4323 GLuint MaxDepth
; /**< size of Stack[] array */
4324 GLuint DirtyFlag
; /**< _NEW_MODELVIEW or _NEW_PROJECTION, for example */
4329 * \name Bits for image transfer operations
4330 * \sa __struct gl_contextRec::ImageTransferState.
4333 #define IMAGE_SCALE_BIAS_BIT 0x1
4334 #define IMAGE_SHIFT_OFFSET_BIT 0x2
4335 #define IMAGE_MAP_COLOR_BIT 0x4
4336 #define IMAGE_CLAMP_BIT 0x800
4339 /** Pixel Transfer ops */
4340 #define IMAGE_BITS (IMAGE_SCALE_BIAS_BIT | \
4341 IMAGE_SHIFT_OFFSET_BIT | \
4342 IMAGE_MAP_COLOR_BIT)
4346 * \name Bits to indicate what state has changed.
4349 #define _NEW_MODELVIEW (1u << 0) /**< gl_context::ModelView */
4350 #define _NEW_PROJECTION (1u << 1) /**< gl_context::Projection */
4351 #define _NEW_TEXTURE_MATRIX (1u << 2) /**< gl_context::TextureMatrix */
4352 #define _NEW_COLOR (1u << 3) /**< gl_context::Color */
4353 #define _NEW_DEPTH (1u << 4) /**< gl_context::Depth */
4354 #define _NEW_EVAL (1u << 5) /**< gl_context::Eval, EvalMap */
4355 #define _NEW_FOG (1u << 6) /**< gl_context::Fog */
4356 #define _NEW_HINT (1u << 7) /**< gl_context::Hint */
4357 #define _NEW_LIGHT (1u << 8) /**< gl_context::Light */
4358 #define _NEW_LINE (1u << 9) /**< gl_context::Line */
4359 #define _NEW_PIXEL (1u << 10) /**< gl_context::Pixel */
4360 #define _NEW_POINT (1u << 11) /**< gl_context::Point */
4361 #define _NEW_POLYGON (1u << 12) /**< gl_context::Polygon */
4362 #define _NEW_POLYGONSTIPPLE (1u << 13) /**< gl_context::PolygonStipple */
4363 #define _NEW_SCISSOR (1u << 14) /**< gl_context::Scissor */
4364 #define _NEW_STENCIL (1u << 15) /**< gl_context::Stencil */
4365 #define _NEW_TEXTURE_OBJECT (1u << 16) /**< gl_context::Texture (bindings only) */
4366 #define _NEW_TRANSFORM (1u << 17) /**< gl_context::Transform */
4367 #define _NEW_VIEWPORT (1u << 18) /**< gl_context::Viewport */
4368 #define _NEW_TEXTURE_STATE (1u << 19) /**< gl_context::Texture (states only) */
4369 #define _NEW_ARRAY (1u << 20) /**< gl_context::Array */
4370 #define _NEW_RENDERMODE (1u << 21) /**< gl_context::RenderMode, etc */
4371 #define _NEW_BUFFERS (1u << 22) /**< gl_context::Visual, DrawBuffer, */
4372 #define _NEW_CURRENT_ATTRIB (1u << 23) /**< gl_context::Current */
4373 #define _NEW_MULTISAMPLE (1u << 24) /**< gl_context::Multisample */
4374 #define _NEW_TRACK_MATRIX (1u << 25) /**< gl_context::VertexProgram */
4375 #define _NEW_PROGRAM (1u << 26) /**< New program/shader state */
4376 #define _NEW_PROGRAM_CONSTANTS (1u << 27)
4378 #define _NEW_FRAG_CLAMP (1u << 29)
4379 /* gap, re-use for core Mesa state only; use ctx->DriverFlags otherwise */
4380 #define _NEW_VARYING_VP_INPUTS (1u << 31) /**< gl_context::varying_vp_inputs */
4386 * Composite state flags
4389 #define _NEW_TEXTURE (_NEW_TEXTURE_OBJECT | _NEW_TEXTURE_STATE)
4391 #define _MESA_NEW_NEED_EYE_COORDS (_NEW_LIGHT | \
4392 _NEW_TEXTURE_STATE | \
4397 #define _MESA_NEW_SEPARATE_SPECULAR (_NEW_LIGHT | \
4407 /* This has to be included here. */
4411 /** Opaque declaration of display list payload data type */
4412 union gl_dlist_node
;
4416 * Per-display list information.
4418 struct gl_display_list
4421 GLbitfield Flags
; /**< DLIST_x flags */
4422 GLchar
*Label
; /**< GL_KHR_debug */
4423 /** The dlist commands are in a linked list of nodes */
4424 union gl_dlist_node
*Head
;
4429 * State used during display list compilation and execution.
4431 struct gl_dlist_state
4433 struct gl_display_list
*CurrentList
; /**< List currently being compiled */
4434 union gl_dlist_node
*CurrentBlock
; /**< Pointer to current block of nodes */
4435 GLuint CurrentPos
; /**< Index into current block of nodes */
4436 GLuint CallDepth
; /**< Current recursion calling depth */
4438 GLvertexformat ListVtxfmt
;
4440 GLubyte ActiveAttribSize
[VERT_ATTRIB_MAX
];
4441 GLfloat CurrentAttrib
[VERT_ATTRIB_MAX
][4];
4443 GLubyte ActiveMaterialSize
[MAT_ATTRIB_MAX
];
4444 GLfloat CurrentMaterial
[MAT_ATTRIB_MAX
][4];
4447 /* State known to have been set by the currently-compiling display
4448 * list. Used to eliminate some redundant state changes.
4450 GLenum16 ShadeModel
;
4456 * These are a mapping of the GL_ARB_debug_output/GL_KHR_debug enums
4457 * to small enums suitable for use as an array index.
4460 enum mesa_debug_source
4462 MESA_DEBUG_SOURCE_API
,
4463 MESA_DEBUG_SOURCE_WINDOW_SYSTEM
,
4464 MESA_DEBUG_SOURCE_SHADER_COMPILER
,
4465 MESA_DEBUG_SOURCE_THIRD_PARTY
,
4466 MESA_DEBUG_SOURCE_APPLICATION
,
4467 MESA_DEBUG_SOURCE_OTHER
,
4468 MESA_DEBUG_SOURCE_COUNT
4471 enum mesa_debug_type
4473 MESA_DEBUG_TYPE_ERROR
,
4474 MESA_DEBUG_TYPE_DEPRECATED
,
4475 MESA_DEBUG_TYPE_UNDEFINED
,
4476 MESA_DEBUG_TYPE_PORTABILITY
,
4477 MESA_DEBUG_TYPE_PERFORMANCE
,
4478 MESA_DEBUG_TYPE_OTHER
,
4479 MESA_DEBUG_TYPE_MARKER
,
4480 MESA_DEBUG_TYPE_PUSH_GROUP
,
4481 MESA_DEBUG_TYPE_POP_GROUP
,
4482 MESA_DEBUG_TYPE_COUNT
4485 enum mesa_debug_severity
4487 MESA_DEBUG_SEVERITY_LOW
,
4488 MESA_DEBUG_SEVERITY_MEDIUM
,
4489 MESA_DEBUG_SEVERITY_HIGH
,
4490 MESA_DEBUG_SEVERITY_NOTIFICATION
,
4491 MESA_DEBUG_SEVERITY_COUNT
4497 * Driver-specific state flags.
4499 * These are or'd with gl_context::NewDriverState to notify a driver about
4500 * a state change. The driver sets the flags at context creation and
4501 * the meaning of the bits set is opaque to core Mesa.
4503 struct gl_driver_flags
4505 /** gl_context::Array::_DrawArrays (vertex array state) */
4508 /** gl_context::TransformFeedback::CurrentObject */
4509 uint64_t NewTransformFeedback
;
4511 /** gl_context::TransformFeedback::CurrentObject::shader_program */
4512 uint64_t NewTransformFeedbackProg
;
4514 /** gl_context::RasterDiscard */
4515 uint64_t NewRasterizerDiscard
;
4517 /** gl_context::TileRasterOrder* */
4518 uint64_t NewTileRasterOrder
;
4521 * gl_context::UniformBufferBindings
4522 * gl_shader_program::UniformBlocks
4524 uint64_t NewUniformBuffer
;
4527 * gl_context::ShaderStorageBufferBindings
4528 * gl_shader_program::ShaderStorageBlocks
4530 uint64_t NewShaderStorageBuffer
;
4532 uint64_t NewTextureBuffer
;
4535 * gl_context::AtomicBufferBindings
4537 uint64_t NewAtomicBuffer
;
4540 * gl_context::ImageUnits
4542 uint64_t NewImageUnits
;
4545 * gl_context::TessCtrlProgram::patch_default_*
4547 uint64_t NewDefaultTessLevels
;
4550 * gl_context::IntelConservativeRasterization
4552 uint64_t NewIntelConservativeRasterization
;
4555 * gl_context::Scissor::WindowRects
4557 uint64_t NewWindowRectangles
;
4559 /** gl_context::Color::sRGBEnabled */
4560 uint64_t NewFramebufferSRGB
;
4562 /** gl_context::Scissor::EnableFlags */
4563 uint64_t NewScissorTest
;
4565 /** gl_context::Scissor::ScissorArray */
4566 uint64_t NewScissorRect
;
4568 /** gl_context::Color::Alpha* */
4569 uint64_t NewAlphaTest
;
4571 /** gl_context::Color::Blend/Dither */
4574 /** gl_context::Color::BlendColor */
4575 uint64_t NewBlendColor
;
4577 /** gl_context::Color::Color/Index */
4578 uint64_t NewColorMask
;
4580 /** gl_context::Depth */
4583 /** gl_context::Color::LogicOp/ColorLogicOp/IndexLogicOp */
4584 uint64_t NewLogicOp
;
4586 /** gl_context::Multisample::Enabled */
4587 uint64_t NewMultisampleEnable
;
4589 /** gl_context::Multisample::SampleAlphaTo* */
4590 uint64_t NewSampleAlphaToXEnable
;
4592 /** gl_context::Multisample::SampleCoverage/SampleMaskValue */
4593 uint64_t NewSampleMask
;
4595 /** gl_context::Multisample::(Min)SampleShading */
4596 uint64_t NewSampleShading
;
4598 /** gl_context::Stencil */
4599 uint64_t NewStencil
;
4601 /** gl_context::Transform::ClipOrigin/ClipDepthMode */
4602 uint64_t NewClipControl
;
4604 /** gl_context::Transform::EyeUserPlane */
4605 uint64_t NewClipPlane
;
4607 /** gl_context::Transform::ClipPlanesEnabled */
4608 uint64_t NewClipPlaneEnable
;
4610 /** gl_context::Transform::DepthClamp */
4611 uint64_t NewDepthClamp
;
4613 /** gl_context::Line */
4614 uint64_t NewLineState
;
4616 /** gl_context::Polygon */
4617 uint64_t NewPolygonState
;
4619 /** gl_context::PolygonStipple */
4620 uint64_t NewPolygonStipple
;
4622 /** gl_context::ViewportArray */
4623 uint64_t NewViewport
;
4625 /** Shader constants (uniforms, program parameters, state constants) */
4626 uint64_t NewShaderConstants
[MESA_SHADER_STAGES
];
4629 struct gl_buffer_binding
4631 struct gl_buffer_object
*BufferObject
;
4632 /** Start of uniform block data in the buffer */
4634 /** Size of data allowed to be referenced from the buffer (in bytes) */
4637 * glBindBufferBase() indicates that the Size should be ignored and only
4638 * limited by the current size of the BufferObject.
4640 GLboolean AutomaticSize
;
4644 * ARB_shader_image_load_store image unit.
4646 struct gl_image_unit
4649 * Texture object bound to this unit.
4651 struct gl_texture_object
*TexObj
;
4654 * Level of the texture object bound to this unit.
4659 * \c GL_TRUE if the whole level is bound as an array of layers, \c
4660 * GL_FALSE if only some specific layer of the texture is bound.
4666 * Layer of the texture object bound to this unit as specified by the
4672 * Layer of the texture object bound to this unit, or zero if the
4673 * whole level is bound.
4678 * Access allowed to this texture image. Either \c GL_READ_ONLY,
4679 * \c GL_WRITE_ONLY or \c GL_READ_WRITE.
4684 * GL internal format that determines the interpretation of the
4685 * image memory when shader image operations are performed through
4691 * Mesa format corresponding to \c Format.
4693 mesa_format _ActualFormat
;
4698 * Shader subroutines storage
4700 struct gl_subroutine_index_binding
4706 struct gl_texture_handle_object
4708 struct gl_texture_object
*texObj
;
4709 struct gl_sampler_object
*sampObj
;
4713 struct gl_image_handle_object
4715 struct gl_image_unit imgObj
;
4719 struct gl_memory_object
4721 GLuint Name
; /**< hash table ID/name */
4722 GLboolean Immutable
; /**< denotes mutability state of parameters */
4723 GLboolean Dedicated
; /**< import memory from a dedicated allocation */
4726 struct gl_semaphore_object
4728 GLuint Name
; /**< hash table ID/name */
4732 * Mesa rendering context.
4734 * This is the central context data structure for Mesa. Almost all
4735 * OpenGL state is contained in this structure.
4736 * Think of this as a base class from which device drivers will derive
4741 /** State possibly shared with other contexts in the address space */
4742 struct gl_shared_state
*Shared
;
4744 /** \name API function pointer tables */
4749 * The current dispatch table for non-displaylist-saving execution, either
4750 * BeginEnd or OutsideBeginEnd
4752 struct _glapi_table
*Exec
;
4754 * The normal dispatch table for non-displaylist-saving, non-begin/end
4756 struct _glapi_table
*OutsideBeginEnd
;
4757 /** The dispatch table used between glNewList() and glEndList() */
4758 struct _glapi_table
*Save
;
4760 * The dispatch table used between glBegin() and glEnd() (outside of a
4761 * display list). Only valid functions between those two are set, which is
4762 * mostly just the set in a GLvertexformat struct.
4764 struct _glapi_table
*BeginEnd
;
4766 * Dispatch table for when a graphics reset has happened.
4768 struct _glapi_table
*ContextLost
;
4770 * Dispatch table used to marshal API calls from the client program to a
4771 * separate server thread. NULL if API calls are not being marshalled to
4774 struct _glapi_table
*MarshalExec
;
4776 * Dispatch table currently in use for fielding API calls from the client
4777 * program. If API calls are being marshalled to another thread, this ==
4778 * MarshalExec. Otherwise it == CurrentServerDispatch.
4780 struct _glapi_table
*CurrentClientDispatch
;
4783 * Dispatch table currently in use for performing API calls. == Save or
4786 struct _glapi_table
*CurrentServerDispatch
;
4790 struct glthread_state
*GLThread
;
4792 struct gl_config Visual
;
4793 struct gl_framebuffer
*DrawBuffer
; /**< buffer for writing */
4794 struct gl_framebuffer
*ReadBuffer
; /**< buffer for reading */
4795 struct gl_framebuffer
*WinSysDrawBuffer
; /**< set with MakeCurrent */
4796 struct gl_framebuffer
*WinSysReadBuffer
; /**< set with MakeCurrent */
4799 * Device driver function pointer table
4801 struct dd_function_table Driver
;
4803 /** Core/Driver constants */
4804 struct gl_constants Const
;
4806 /** \name The various 4x4 matrix stacks */
4808 struct gl_matrix_stack ModelviewMatrixStack
;
4809 struct gl_matrix_stack ProjectionMatrixStack
;
4810 struct gl_matrix_stack TextureMatrixStack
[MAX_TEXTURE_UNITS
];
4811 struct gl_matrix_stack ProgramMatrixStack
[MAX_PROGRAM_MATRICES
];
4812 struct gl_matrix_stack
*CurrentStack
; /**< Points to one of the above stacks */
4815 /** Combined modelview and projection matrix */
4816 GLmatrix _ModelProjectMatrix
;
4818 /** \name Display lists */
4819 struct gl_dlist_state ListState
;
4821 GLboolean ExecuteFlag
; /**< Execute GL commands? */
4822 GLboolean CompileFlag
; /**< Compile GL commands into display list? */
4824 /** Extension information */
4825 struct gl_extensions Extensions
;
4827 /** GL version integer, for example 31 for GL 3.1, or 20 for GLES 2.0. */
4829 char *VersionString
;
4831 /** \name State attribute stack (for glPush/PopAttrib) */
4833 GLuint AttribStackDepth
;
4834 struct gl_attrib_node
*AttribStack
[MAX_ATTRIB_STACK_DEPTH
];
4837 /** \name Renderer attribute groups
4839 * We define a struct for each attribute group to make pushing and popping
4840 * attributes easy. Also it's a good organization.
4843 struct gl_accum_attrib Accum
; /**< Accum buffer attributes */
4844 struct gl_colorbuffer_attrib Color
; /**< Color buffer attributes */
4845 struct gl_current_attrib Current
; /**< Current attributes */
4846 struct gl_depthbuffer_attrib Depth
; /**< Depth buffer attributes */
4847 struct gl_eval_attrib Eval
; /**< Eval attributes */
4848 struct gl_fog_attrib Fog
; /**< Fog attributes */
4849 struct gl_hint_attrib Hint
; /**< Hint attributes */
4850 struct gl_light_attrib Light
; /**< Light attributes */
4851 struct gl_line_attrib Line
; /**< Line attributes */
4852 struct gl_list_attrib List
; /**< List attributes */
4853 struct gl_multisample_attrib Multisample
;
4854 struct gl_pixel_attrib Pixel
; /**< Pixel attributes */
4855 struct gl_point_attrib Point
; /**< Point attributes */
4856 struct gl_polygon_attrib Polygon
; /**< Polygon attributes */
4857 GLuint PolygonStipple
[32]; /**< Polygon stipple */
4858 struct gl_scissor_attrib Scissor
; /**< Scissor attributes */
4859 struct gl_stencil_attrib Stencil
; /**< Stencil buffer attributes */
4860 struct gl_texture_attrib Texture
; /**< Texture attributes */
4861 struct gl_transform_attrib Transform
; /**< Transformation attributes */
4862 struct gl_viewport_attrib ViewportArray
[MAX_VIEWPORTS
]; /**< Viewport attributes */
4865 /** \name Client attribute stack */
4867 GLuint ClientAttribStackDepth
;
4868 struct gl_attrib_node
*ClientAttribStack
[MAX_CLIENT_ATTRIB_STACK_DEPTH
];
4871 /** \name Client attribute groups */
4873 struct gl_array_attrib Array
; /**< Vertex arrays */
4874 struct gl_pixelstore_attrib Pack
; /**< Pixel packing */
4875 struct gl_pixelstore_attrib Unpack
; /**< Pixel unpacking */
4876 struct gl_pixelstore_attrib DefaultPacking
; /**< Default params */
4879 /** \name Other assorted state (not pushed/popped on attribute stack) */
4881 struct gl_pixelmaps PixelMaps
;
4883 struct gl_evaluators EvalMap
; /**< All evaluators */
4884 struct gl_feedback Feedback
; /**< Feedback */
4885 struct gl_selection Select
; /**< Selection */
4887 struct gl_program_state Program
; /**< general program state */
4888 struct gl_vertex_program_state VertexProgram
;
4889 struct gl_fragment_program_state FragmentProgram
;
4890 struct gl_geometry_program_state GeometryProgram
;
4891 struct gl_compute_program_state ComputeProgram
;
4892 struct gl_tess_ctrl_program_state TessCtrlProgram
;
4893 struct gl_tess_eval_program_state TessEvalProgram
;
4894 struct gl_ati_fragment_shader_state ATIFragmentShader
;
4896 struct gl_pipeline_shader_state Pipeline
; /**< GLSL pipeline shader object state */
4897 struct gl_pipeline_object Shader
; /**< GLSL shader object state */
4900 * Current active shader pipeline state
4902 * Almost all internal users want ::_Shader instead of ::Shader. The
4903 * exceptions are bits of legacy GLSL API that do not know about separate
4906 * If a program is active via \c glUseProgram, this will point to
4909 * If a program pipeline is active via \c glBindProgramPipeline, this will
4910 * point to \c ::Pipeline.Current.
4912 * If neither a program nor a program pipeline is active, this will point to
4913 * \c ::Pipeline.Default. This ensures that \c ::_Shader will never be
4916 struct gl_pipeline_object
*_Shader
;
4918 struct gl_query_state Query
; /**< occlusion, timer queries */
4920 struct gl_transform_feedback_state TransformFeedback
;
4922 struct gl_perf_monitor_state PerfMonitor
;
4923 struct gl_perf_query_state PerfQuery
;
4925 struct gl_buffer_object
*DrawIndirectBuffer
; /** < GL_ARB_draw_indirect */
4926 struct gl_buffer_object
*ParameterBuffer
; /** < GL_ARB_indirect_parameters */
4927 struct gl_buffer_object
*DispatchIndirectBuffer
; /** < GL_ARB_compute_shader */
4929 struct gl_buffer_object
*CopyReadBuffer
; /**< GL_ARB_copy_buffer */
4930 struct gl_buffer_object
*CopyWriteBuffer
; /**< GL_ARB_copy_buffer */
4932 struct gl_buffer_object
*QueryBuffer
; /**< GL_ARB_query_buffer_object */
4935 * Current GL_ARB_uniform_buffer_object binding referenced by
4936 * GL_UNIFORM_BUFFER target for glBufferData, glMapBuffer, etc.
4938 struct gl_buffer_object
*UniformBuffer
;
4941 * Current GL_ARB_shader_storage_buffer_object binding referenced by
4942 * GL_SHADER_STORAGE_BUFFER target for glBufferData, glMapBuffer, etc.
4944 struct gl_buffer_object
*ShaderStorageBuffer
;
4947 * Array of uniform buffers for GL_ARB_uniform_buffer_object and GL 3.1.
4948 * This is set up using glBindBufferRange() or glBindBufferBase(). They are
4949 * associated with uniform blocks by glUniformBlockBinding()'s state in the
4952 struct gl_buffer_binding
4953 UniformBufferBindings
[MAX_COMBINED_UNIFORM_BUFFERS
];
4956 * Array of shader storage buffers for ARB_shader_storage_buffer_object
4957 * and GL 4.3. This is set up using glBindBufferRange() or
4958 * glBindBufferBase(). They are associated with shader storage blocks by
4959 * glShaderStorageBlockBinding()'s state in the shader program.
4961 struct gl_buffer_binding
4962 ShaderStorageBufferBindings
[MAX_COMBINED_SHADER_STORAGE_BUFFERS
];
4965 * Object currently associated with the GL_ATOMIC_COUNTER_BUFFER
4968 struct gl_buffer_object
*AtomicBuffer
;
4971 * Object currently associated w/ the GL_EXTERNAL_VIRTUAL_MEMORY_BUFFER_AMD
4974 struct gl_buffer_object
*ExternalVirtualMemoryBuffer
;
4977 * Array of atomic counter buffer binding points.
4979 struct gl_buffer_binding
4980 AtomicBufferBindings
[MAX_COMBINED_ATOMIC_BUFFERS
];
4983 * Array of image units for ARB_shader_image_load_store.
4985 struct gl_image_unit ImageUnits
[MAX_IMAGE_UNITS
];
4987 struct gl_subroutine_index_binding SubroutineIndex
[MESA_SHADER_STAGES
];
4990 struct gl_meta_state
*Meta
; /**< for "meta" operations */
4992 /* GL_EXT_framebuffer_object */
4993 struct gl_renderbuffer
*CurrentRenderbuffer
;
4995 GLenum16 ErrorValue
; /**< Last error code */
4998 * Recognize and silence repeated error debug messages in buggy apps.
5000 const char *ErrorDebugFmtString
;
5001 GLuint ErrorDebugCount
;
5003 /* GL_ARB_debug_output/GL_KHR_debug */
5004 simple_mtx_t DebugMutex
;
5005 struct gl_debug_state
*Debug
;
5007 GLenum16 RenderMode
; /**< either GL_RENDER, GL_SELECT, GL_FEEDBACK */
5008 GLbitfield NewState
; /**< bitwise-or of _NEW_* flags */
5009 uint64_t NewDriverState
; /**< bitwise-or of flags from DriverFlags */
5011 struct gl_driver_flags DriverFlags
;
5013 GLboolean ViewportInitialized
; /**< has viewport size been initialized? */
5015 GLbitfield varying_vp_inputs
; /**< mask of VERT_BIT_* flags */
5017 /** \name Derived state */
5018 GLbitfield _ImageTransferState
;/**< bitwise-or of IMAGE_*_BIT flags */
5019 GLfloat _EyeZDir
[3];
5020 GLfloat _ModelViewInvScale
; /* may be for model- or eyespace lighting */
5021 GLfloat _ModelViewInvScaleEyespace
; /* always factor defined in spec */
5022 GLboolean _NeedEyeCoords
;
5023 GLboolean _ForceEyeCoords
;
5025 GLuint TextureStateTimestamp
; /**< detect changes to shared state */
5027 struct gl_list_extensions
*ListExt
; /**< driver dlist extensions */
5029 /** \name For debugging/development only */
5031 GLboolean FirstTimeCurrent
;
5035 * False if this context was created without a config. This is needed
5036 * because the initial state of glDrawBuffers depends on this
5038 GLboolean HasConfig
;
5040 GLboolean TextureFormatSupported
[MESA_FORMAT_COUNT
];
5042 GLboolean RasterDiscard
; /**< GL_RASTERIZER_DISCARD */
5043 GLboolean IntelConservativeRasterization
; /**< GL_INTEL_CONSERVATIVE_RASTERIZATION */
5045 /** Does glVertexAttrib(0) alias glVertex()? */
5046 bool _AttribZeroAliasesVertex
;
5049 * When set, TileRasterOrderIncreasingX/Y control the order that a tiled
5050 * renderer's tiles should be excecuted, to meet the requirements of
5051 * GL_MESA_tile_raster_order.
5053 GLboolean TileRasterOrderFixed
;
5054 GLboolean TileRasterOrderIncreasingX
;
5055 GLboolean TileRasterOrderIncreasingY
;
5058 * \name Hooks for module contexts.
5060 * These will eventually live in the driver or elsewhere.
5063 void *swrast_context
;
5064 void *swsetup_context
;
5065 void *swtnl_context
;
5066 struct vbo_context
*vbo_context
;
5067 struct st_context
*st
;
5072 * \name NV_vdpau_interop
5075 const void *vdpDevice
;
5076 const void *vdpGetProcAddress
;
5077 struct set
*vdpSurfaces
;
5081 * Has this context observed a GPU reset in any context in the share group?
5083 * Once this field becomes true, it is never reset to false.
5085 GLboolean ShareGroupReset
;
5088 * \name OES_primitive_bounding_box
5090 * Stores the arguments to glPrimitiveBoundingBox
5092 GLfloat PrimitiveBoundingBox
[8];
5094 struct disk_cache
*Cache
;
5097 * \name GL_ARB_bindless_texture
5100 struct hash_table_u64
*ResidentTextureHandles
;
5101 struct hash_table_u64
*ResidentImageHandles
;
5106 * Information about memory usage. All sizes are in kilobytes.
5108 struct gl_memory_info
5110 unsigned total_device_memory
; /**< size of device memory, e.g. VRAM */
5111 unsigned avail_device_memory
; /**< free device memory at the moment */
5112 unsigned total_staging_memory
; /**< size of staging memory, e.g. GART */
5113 unsigned avail_staging_memory
; /**< free staging memory at the moment */
5114 unsigned device_memory_evicted
; /**< size of memory evicted (monotonic counter) */
5115 unsigned nr_device_memory_evictions
; /**< # of evictions (monotonic counter) */
5119 extern int MESA_VERBOSE
;
5120 extern int MESA_DEBUG_FLAGS
;
5122 # define MESA_VERBOSE 0
5123 # define MESA_DEBUG_FLAGS 0
5127 /** The MESA_VERBOSE var is a bitmask of these flags */
5130 VERBOSE_VARRAY
= 0x0001,
5131 VERBOSE_TEXTURE
= 0x0002,
5132 VERBOSE_MATERIAL
= 0x0004,
5133 VERBOSE_PIPELINE
= 0x0008,
5134 VERBOSE_DRIVER
= 0x0010,
5135 VERBOSE_STATE
= 0x0020,
5136 VERBOSE_API
= 0x0040,
5137 VERBOSE_DISPLAY_LIST
= 0x0100,
5138 VERBOSE_LIGHTING
= 0x0200,
5139 VERBOSE_PRIMS
= 0x0400,
5140 VERBOSE_VERTS
= 0x0800,
5141 VERBOSE_DISASSEM
= 0x1000,
5142 VERBOSE_DRAW
= 0x2000,
5143 VERBOSE_SWAPBUFFERS
= 0x4000
5147 /** The MESA_DEBUG_FLAGS var is a bitmask of these flags */
5150 DEBUG_SILENT
= (1 << 0),
5151 DEBUG_ALWAYS_FLUSH
= (1 << 1),
5152 DEBUG_INCOMPLETE_TEXTURE
= (1 << 2),
5153 DEBUG_INCOMPLETE_FBO
= (1 << 3),
5154 DEBUG_CONTEXT
= (1 << 4)
5161 #endif /* MTYPES_H */