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))
84 #define GET_COLORMASK_BIT(mask, buf, chan) (((mask) >> (4 * (buf) + (chan))) & 0x1)
85 #define GET_COLORMASK(mask, buf) (((mask) >> (4 * (buf))) & 0xf)
89 * \name Some forward type declarations
92 struct _mesa_HashTable
;
93 struct gl_attrib_node
;
94 struct gl_list_extensions
;
96 struct gl_program_cache
;
97 struct gl_texture_object
;
98 struct gl_debug_state
;
101 struct gl_uniform_storage
;
102 struct prog_instruction
;
103 struct gl_program_parameter_list
;
104 struct gl_shader_spirv_data
;
110 /** Extra draw modes beyond GL_POINTS, GL_TRIANGLE_FAN, etc */
111 #define PRIM_MAX GL_PATCHES
112 #define PRIM_OUTSIDE_BEGIN_END (PRIM_MAX + 1)
113 #define PRIM_UNKNOWN (PRIM_MAX + 2)
116 * Determine if the given gl_varying_slot appears in the fragment shader.
118 static inline GLboolean
119 _mesa_varying_slot_in_fs(gl_varying_slot slot
)
122 case VARYING_SLOT_PSIZ
:
123 case VARYING_SLOT_BFC0
:
124 case VARYING_SLOT_BFC1
:
125 case VARYING_SLOT_EDGE
:
126 case VARYING_SLOT_CLIP_VERTEX
:
127 case VARYING_SLOT_LAYER
:
128 case VARYING_SLOT_TESS_LEVEL_OUTER
:
129 case VARYING_SLOT_TESS_LEVEL_INNER
:
130 case VARYING_SLOT_BOUNDING_BOX0
:
131 case VARYING_SLOT_BOUNDING_BOX1
:
139 * Indexes for all renderbuffers
143 /* the four standard color buffers */
151 /* optional aux buffer */
153 /* generic renderbuffers */
167 * Bit flags for all renderbuffers
169 #define BUFFER_BIT_FRONT_LEFT (1 << BUFFER_FRONT_LEFT)
170 #define BUFFER_BIT_BACK_LEFT (1 << BUFFER_BACK_LEFT)
171 #define BUFFER_BIT_FRONT_RIGHT (1 << BUFFER_FRONT_RIGHT)
172 #define BUFFER_BIT_BACK_RIGHT (1 << BUFFER_BACK_RIGHT)
173 #define BUFFER_BIT_AUX0 (1 << BUFFER_AUX0)
174 #define BUFFER_BIT_AUX1 (1 << BUFFER_AUX1)
175 #define BUFFER_BIT_AUX2 (1 << BUFFER_AUX2)
176 #define BUFFER_BIT_AUX3 (1 << BUFFER_AUX3)
177 #define BUFFER_BIT_DEPTH (1 << BUFFER_DEPTH)
178 #define BUFFER_BIT_STENCIL (1 << BUFFER_STENCIL)
179 #define BUFFER_BIT_ACCUM (1 << BUFFER_ACCUM)
180 #define BUFFER_BIT_COLOR0 (1 << BUFFER_COLOR0)
181 #define BUFFER_BIT_COLOR1 (1 << BUFFER_COLOR1)
182 #define BUFFER_BIT_COLOR2 (1 << BUFFER_COLOR2)
183 #define BUFFER_BIT_COLOR3 (1 << BUFFER_COLOR3)
184 #define BUFFER_BIT_COLOR4 (1 << BUFFER_COLOR4)
185 #define BUFFER_BIT_COLOR5 (1 << BUFFER_COLOR5)
186 #define BUFFER_BIT_COLOR6 (1 << BUFFER_COLOR6)
187 #define BUFFER_BIT_COLOR7 (1 << BUFFER_COLOR7)
190 * Mask of all the color buffer bits (but not accum).
192 #define BUFFER_BITS_COLOR (BUFFER_BIT_FRONT_LEFT | \
193 BUFFER_BIT_BACK_LEFT | \
194 BUFFER_BIT_FRONT_RIGHT | \
195 BUFFER_BIT_BACK_RIGHT | \
197 BUFFER_BIT_COLOR0 | \
198 BUFFER_BIT_COLOR1 | \
199 BUFFER_BIT_COLOR2 | \
200 BUFFER_BIT_COLOR3 | \
201 BUFFER_BIT_COLOR4 | \
202 BUFFER_BIT_COLOR5 | \
203 BUFFER_BIT_COLOR6 | \
206 /* Mask of bits for depth+stencil buffers */
207 #define BUFFER_BITS_DEPTH_STENCIL (BUFFER_BIT_DEPTH | BUFFER_BIT_STENCIL)
210 * Framebuffer configuration (aka visual / pixelformat)
211 * Note: some of these fields should be boolean, but it appears that
212 * code in drivers/dri/common/util.c requires int-sized fields.
218 GLuint doubleBufferMode
;
221 GLboolean haveAccumBuffer
;
222 GLboolean haveDepthBuffer
;
223 GLboolean haveStencilBuffer
;
225 GLint redBits
, greenBits
, blueBits
, alphaBits
; /* bits per comp */
226 GLuint redMask
, greenMask
, blueMask
, alphaMask
;
227 GLint rgbBits
; /* total bits for rgb */
228 GLint indexBits
; /* total bits for colorindex */
230 GLint accumRedBits
, accumGreenBits
, accumBlueBits
, accumAlphaBits
;
238 /* EXT_visual_rating / GLX 1.2 */
241 /* EXT_visual_info / GLX 1.2 */
242 GLint transparentPixel
;
243 /* colors are floats scaled to ints */
244 GLint transparentRed
, transparentGreen
, transparentBlue
, transparentAlpha
;
245 GLint transparentIndex
;
247 /* ARB_multisample / SGIS_multisample */
251 /* SGIX_pbuffer / GLX 1.3 */
252 GLint maxPbufferWidth
;
253 GLint maxPbufferHeight
;
254 GLint maxPbufferPixels
;
255 GLint optimalPbufferWidth
; /* Only for SGIX_pbuffer. */
256 GLint optimalPbufferHeight
; /* Only for SGIX_pbuffer. */
258 /* OML_swap_method */
261 /* EXT_texture_from_pixmap */
262 GLint bindToTextureRgb
;
263 GLint bindToTextureRgba
;
264 GLint bindToMipmapTexture
;
265 GLint bindToTextureTargets
;
268 /* EXT_framebuffer_sRGB */
274 * \name Bit flags used for updating material values.
277 #define MAT_ATTRIB_FRONT_AMBIENT 0
278 #define MAT_ATTRIB_BACK_AMBIENT 1
279 #define MAT_ATTRIB_FRONT_DIFFUSE 2
280 #define MAT_ATTRIB_BACK_DIFFUSE 3
281 #define MAT_ATTRIB_FRONT_SPECULAR 4
282 #define MAT_ATTRIB_BACK_SPECULAR 5
283 #define MAT_ATTRIB_FRONT_EMISSION 6
284 #define MAT_ATTRIB_BACK_EMISSION 7
285 #define MAT_ATTRIB_FRONT_SHININESS 8
286 #define MAT_ATTRIB_BACK_SHININESS 9
287 #define MAT_ATTRIB_FRONT_INDEXES 10
288 #define MAT_ATTRIB_BACK_INDEXES 11
289 #define MAT_ATTRIB_MAX 12
291 #define MAT_ATTRIB_AMBIENT(f) (MAT_ATTRIB_FRONT_AMBIENT+(f))
292 #define MAT_ATTRIB_DIFFUSE(f) (MAT_ATTRIB_FRONT_DIFFUSE+(f))
293 #define MAT_ATTRIB_SPECULAR(f) (MAT_ATTRIB_FRONT_SPECULAR+(f))
294 #define MAT_ATTRIB_EMISSION(f) (MAT_ATTRIB_FRONT_EMISSION+(f))
295 #define MAT_ATTRIB_SHININESS(f)(MAT_ATTRIB_FRONT_SHININESS+(f))
296 #define MAT_ATTRIB_INDEXES(f) (MAT_ATTRIB_FRONT_INDEXES+(f))
298 #define MAT_BIT_FRONT_AMBIENT (1<<MAT_ATTRIB_FRONT_AMBIENT)
299 #define MAT_BIT_BACK_AMBIENT (1<<MAT_ATTRIB_BACK_AMBIENT)
300 #define MAT_BIT_FRONT_DIFFUSE (1<<MAT_ATTRIB_FRONT_DIFFUSE)
301 #define MAT_BIT_BACK_DIFFUSE (1<<MAT_ATTRIB_BACK_DIFFUSE)
302 #define MAT_BIT_FRONT_SPECULAR (1<<MAT_ATTRIB_FRONT_SPECULAR)
303 #define MAT_BIT_BACK_SPECULAR (1<<MAT_ATTRIB_BACK_SPECULAR)
304 #define MAT_BIT_FRONT_EMISSION (1<<MAT_ATTRIB_FRONT_EMISSION)
305 #define MAT_BIT_BACK_EMISSION (1<<MAT_ATTRIB_BACK_EMISSION)
306 #define MAT_BIT_FRONT_SHININESS (1<<MAT_ATTRIB_FRONT_SHININESS)
307 #define MAT_BIT_BACK_SHININESS (1<<MAT_ATTRIB_BACK_SHININESS)
308 #define MAT_BIT_FRONT_INDEXES (1<<MAT_ATTRIB_FRONT_INDEXES)
309 #define MAT_BIT_BACK_INDEXES (1<<MAT_ATTRIB_BACK_INDEXES)
312 #define FRONT_MATERIAL_BITS (MAT_BIT_FRONT_EMISSION | \
313 MAT_BIT_FRONT_AMBIENT | \
314 MAT_BIT_FRONT_DIFFUSE | \
315 MAT_BIT_FRONT_SPECULAR | \
316 MAT_BIT_FRONT_SHININESS | \
317 MAT_BIT_FRONT_INDEXES)
319 #define BACK_MATERIAL_BITS (MAT_BIT_BACK_EMISSION | \
320 MAT_BIT_BACK_AMBIENT | \
321 MAT_BIT_BACK_DIFFUSE | \
322 MAT_BIT_BACK_SPECULAR | \
323 MAT_BIT_BACK_SHININESS | \
324 MAT_BIT_BACK_INDEXES)
326 #define ALL_MATERIAL_BITS (FRONT_MATERIAL_BITS | BACK_MATERIAL_BITS)
335 GLfloat Attrib
[MAT_ATTRIB_MAX
][4];
343 #define LIGHT_SPOT 0x1
344 #define LIGHT_LOCAL_VIEWER 0x2
345 #define LIGHT_POSITIONAL 0x4
346 #define LIGHT_NEED_VERTICES (LIGHT_POSITIONAL|LIGHT_LOCAL_VIEWER)
351 * Light source state.
355 GLfloat Ambient
[4]; /**< ambient color */
356 GLfloat Diffuse
[4]; /**< diffuse color */
357 GLfloat Specular
[4]; /**< specular color */
358 GLfloat EyePosition
[4]; /**< position in eye coordinates */
359 GLfloat SpotDirection
[4]; /**< spotlight direction in eye coordinates */
360 GLfloat SpotExponent
;
361 GLfloat SpotCutoff
; /**< in degrees */
362 GLfloat _CosCutoff
; /**< = MAX(0, cos(SpotCutoff)) */
363 GLfloat ConstantAttenuation
;
364 GLfloat LinearAttenuation
;
365 GLfloat QuadraticAttenuation
;
366 GLboolean Enabled
; /**< On/off flag */
369 * \name Derived fields
372 GLbitfield _Flags
; /**< Mask of LIGHT_x bits defined above */
374 GLfloat _Position
[4]; /**< position in eye/obj coordinates */
375 GLfloat _VP_inf_norm
[3]; /**< Norm direction to infinite light */
376 GLfloat _h_inf_norm
[3]; /**< Norm( _VP_inf_norm + <0,0,1> ) */
377 GLfloat _NormSpotDirection
[4]; /**< normalized spotlight direction */
378 GLfloat _VP_inf_spot_attenuation
;
380 GLfloat _MatAmbient
[2][3]; /**< material ambient * light ambient */
381 GLfloat _MatDiffuse
[2][3]; /**< material diffuse * light diffuse */
382 GLfloat _MatSpecular
[2][3]; /**< material spec * light specular */
392 GLfloat Ambient
[4]; /**< ambient color */
393 GLboolean LocalViewer
; /**< Local (or infinite) view point? */
394 GLboolean TwoSide
; /**< Two (or one) sided lighting? */
395 GLenum16 ColorControl
; /**< either GL_SINGLE_COLOR
396 or GL_SEPARATE_SPECULAR_COLOR */
401 * Accumulation buffer attribute group (GL_ACCUM_BUFFER_BIT)
403 struct gl_accum_attrib
405 GLfloat ClearColor
[4]; /**< Accumulation buffer clear color */
410 * Used for storing clear color, texture border color, etc.
411 * The float values are typically unclamped.
421 * Remapped color logical operations
423 * With the exception of NVIDIA hardware, which consumes the OpenGL enumerants
424 * directly, everything wants this mapping of color logical operations.
426 * Fun fact: These values are just the bit-reverse of the low-nibble of the GL
427 * enumerant values (i.e., `GL_NOOP & 0x0f` is `b0101' while
428 * \c COLOR_LOGICOP_NOOP is `b1010`).
430 * Fun fact #2: These values are just an encoding of the operation as a table
431 * of bit values. The result of the logic op is:
433 * result_bit = (logic_op >> (2 * src_bit + dst_bit)) & 1
435 * For the GL enums, the result is:
437 * result_bit = logic_op & (1 << (2 * src_bit + dst_bit))
439 enum PACKED gl_logicop_mode
{
440 COLOR_LOGICOP_CLEAR
= 0,
441 COLOR_LOGICOP_NOR
= 1,
442 COLOR_LOGICOP_AND_INVERTED
= 2,
443 COLOR_LOGICOP_COPY_INVERTED
= 3,
444 COLOR_LOGICOP_AND_REVERSE
= 4,
445 COLOR_LOGICOP_INVERT
= 5,
446 COLOR_LOGICOP_XOR
= 6,
447 COLOR_LOGICOP_NAND
= 7,
448 COLOR_LOGICOP_AND
= 8,
449 COLOR_LOGICOP_EQUIV
= 9,
450 COLOR_LOGICOP_NOOP
= 10,
451 COLOR_LOGICOP_OR_INVERTED
= 11,
452 COLOR_LOGICOP_COPY
= 12,
453 COLOR_LOGICOP_OR_REVERSE
= 13,
454 COLOR_LOGICOP_OR
= 14,
455 COLOR_LOGICOP_SET
= 15
459 * Color buffer attribute group (GL_COLOR_BUFFER_BIT).
461 struct gl_colorbuffer_attrib
463 GLuint ClearIndex
; /**< Index for glClear */
464 union gl_color_union ClearColor
; /**< Color for glClear, unclamped */
465 GLuint IndexMask
; /**< Color index write mask */
467 /** 4 colormask bits per draw buffer, max 8 draw buffers. 4*8 = 32 bits */
468 GLbitfield ColorMask
;
470 GLenum16 DrawBuffer
[MAX_DRAW_BUFFERS
]; /**< Which buffer to draw into */
473 * \name alpha testing
476 GLboolean AlphaEnabled
; /**< Alpha test enabled flag */
477 GLenum16 AlphaFunc
; /**< Alpha test function */
478 GLfloat AlphaRefUnclamped
;
479 GLclampf AlphaRef
; /**< Alpha reference value */
486 GLbitfield BlendEnabled
; /**< Per-buffer blend enable flags */
488 /* NOTE: this does _not_ depend on fragment clamping or any other clamping
489 * control, only on the fixed-pointness of the render target.
490 * The query does however depend on fragment color clamping.
492 GLfloat BlendColorUnclamped
[4]; /**< Blending color */
493 GLfloat BlendColor
[4]; /**< Blending color */
497 GLenum16 SrcRGB
; /**< RGB blend source term */
498 GLenum16 DstRGB
; /**< RGB blend dest term */
499 GLenum16 SrcA
; /**< Alpha blend source term */
500 GLenum16 DstA
; /**< Alpha blend dest term */
501 GLenum16 EquationRGB
; /**< GL_ADD, GL_SUBTRACT, etc. */
502 GLenum16 EquationA
; /**< GL_ADD, GL_SUBTRACT, etc. */
504 * Set if any blend factor uses SRC1. Computed at the time blend factors
507 GLboolean _UsesDualSrc
;
508 } Blend
[MAX_DRAW_BUFFERS
];
509 /** Are the blend func terms currently different for each buffer/target? */
510 GLboolean _BlendFuncPerBuffer
;
511 /** Are the blend equations currently different for each buffer/target? */
512 GLboolean _BlendEquationPerBuffer
;
515 * Which advanced blending mode is in use (or BLEND_NONE).
517 * KHR_blend_equation_advanced only allows advanced blending with a single
518 * draw buffer, and NVX_blend_equation_advanced_multi_draw_buffer still
519 * requires all draw buffers to match, so we only need a single value.
521 enum gl_advanced_blend_mode _AdvancedBlendMode
;
523 /** Coherency requested via glEnable(GL_BLEND_ADVANCED_COHERENT_KHR)? */
531 GLboolean IndexLogicOpEnabled
; /**< Color index logic op enabled flag */
532 GLboolean ColorLogicOpEnabled
; /**< RGBA logic op enabled flag */
533 GLenum16 LogicOp
; /**< Logic operator */
534 enum gl_logicop_mode _LogicOp
;
537 GLboolean DitherFlag
; /**< Dither enable flag */
539 GLboolean _ClampFragmentColor
; /** < with GL_FIXED_ONLY_ARB resolved */
540 GLenum16 ClampFragmentColor
; /**< GL_TRUE, GL_FALSE or GL_FIXED_ONLY_ARB */
541 GLenum16 ClampReadColor
; /**< GL_TRUE, GL_FALSE or GL_FIXED_ONLY_ARB */
543 GLboolean sRGBEnabled
; /**< Framebuffer sRGB blending/updating requested */
548 * Current attribute group (GL_CURRENT_BIT).
550 struct gl_current_attrib
553 * \name Current vertex attributes (color, texcoords, etc).
554 * \note Values are valid only after FLUSH_VERTICES has been called.
555 * \note Index and Edgeflag current values are stored as floats in the
556 * SIX and SEVEN attribute slots.
557 * \note We need double storage for 64-bit vertex attributes
559 GLfloat Attrib
[VERT_ATTRIB_MAX
][4*2];
562 * \name Current raster position attributes (always up to date after a
565 GLfloat RasterPos
[4];
566 GLfloat RasterDistance
;
567 GLfloat RasterColor
[4];
568 GLfloat RasterSecondaryColor
[4];
569 GLfloat RasterTexCoords
[MAX_TEXTURE_COORD_UNITS
][4];
570 GLboolean RasterPosValid
;
575 * Depth buffer attribute group (GL_DEPTH_BUFFER_BIT).
577 struct gl_depthbuffer_attrib
579 GLenum16 Func
; /**< Function for depth buffer compare */
580 GLclampd Clear
; /**< Value to clear depth buffer to */
581 GLboolean Test
; /**< Depth buffering enabled flag */
582 GLboolean Mask
; /**< Depth buffer writable? */
583 GLboolean BoundsTest
; /**< GL_EXT_depth_bounds_test */
584 GLfloat BoundsMin
, BoundsMax
;/**< GL_EXT_depth_bounds_test */
589 * Evaluator attribute group (GL_EVAL_BIT).
591 struct gl_eval_attrib
597 GLboolean Map1Color4
;
599 GLboolean Map1Normal
;
600 GLboolean Map1TextureCoord1
;
601 GLboolean Map1TextureCoord2
;
602 GLboolean Map1TextureCoord3
;
603 GLboolean Map1TextureCoord4
;
604 GLboolean Map1Vertex3
;
605 GLboolean Map1Vertex4
;
606 GLboolean Map2Color4
;
608 GLboolean Map2Normal
;
609 GLboolean Map2TextureCoord1
;
610 GLboolean Map2TextureCoord2
;
611 GLboolean Map2TextureCoord3
;
612 GLboolean Map2TextureCoord4
;
613 GLboolean Map2Vertex3
;
614 GLboolean Map2Vertex4
;
615 GLboolean AutoNormal
;
619 * \name Map Grid endpoints and divisions and calculated du values
623 GLfloat MapGrid1u1
, MapGrid1u2
, MapGrid1du
;
624 GLint MapGrid2un
, MapGrid2vn
;
625 GLfloat MapGrid2u1
, MapGrid2u2
, MapGrid2du
;
626 GLfloat MapGrid2v1
, MapGrid2v2
, MapGrid2dv
;
632 * Compressed fog mode.
644 * Fog attribute group (GL_FOG_BIT).
648 GLboolean Enabled
; /**< Fog enabled flag */
649 GLboolean ColorSumEnabled
;
650 uint8_t _PackedMode
; /**< Fog mode as 2 bits */
651 uint8_t _PackedEnabledMode
; /**< Masked CompressedMode */
652 GLfloat ColorUnclamped
[4]; /**< Fog color */
653 GLfloat Color
[4]; /**< Fog color */
654 GLfloat Density
; /**< Density >= 0.0 */
655 GLfloat Start
; /**< Start distance in eye coords */
656 GLfloat End
; /**< End distance in eye coords */
657 GLfloat Index
; /**< Fog index */
658 GLenum16 Mode
; /**< Fog mode */
659 GLenum16 FogCoordinateSource
;/**< GL_EXT_fog_coord */
660 GLenum16 FogDistanceMode
; /**< GL_NV_fog_distance */
665 * Hint attribute group (GL_HINT_BIT).
667 * Values are always one of GL_FASTEST, GL_NICEST, or GL_DONT_CARE.
669 struct gl_hint_attrib
671 GLenum16 PerspectiveCorrection
;
672 GLenum16 PointSmooth
;
674 GLenum16 PolygonSmooth
;
676 GLenum16 TextureCompression
; /**< GL_ARB_texture_compression */
677 GLenum16 GenerateMipmap
; /**< GL_SGIS_generate_mipmap */
678 GLenum16 FragmentShaderDerivative
; /**< GL_ARB_fragment_shader */
683 * Lighting attribute group (GL_LIGHT_BIT).
685 struct gl_light_attrib
687 struct gl_light Light
[MAX_LIGHTS
]; /**< Array of light sources */
688 struct gl_lightmodel Model
; /**< Lighting model */
691 * Front and back material values.
692 * Note: must call FLUSH_VERTICES() before using.
694 struct gl_material Material
;
696 GLboolean Enabled
; /**< Lighting enabled flag */
697 GLboolean ColorMaterialEnabled
;
699 GLenum16 ShadeModel
; /**< GL_FLAT or GL_SMOOTH */
700 GLenum16 ProvokingVertex
; /**< GL_EXT_provoking_vertex */
701 GLenum16 ColorMaterialFace
; /**< GL_FRONT, BACK or FRONT_AND_BACK */
702 GLenum16 ColorMaterialMode
; /**< GL_AMBIENT, GL_DIFFUSE, etc */
703 GLbitfield _ColorMaterialBitmask
; /**< bitmask formed from Face and Mode */
706 GLboolean _ClampVertexColor
;
707 GLenum16 ClampVertexColor
; /**< GL_TRUE, GL_FALSE, GL_FIXED_ONLY */
710 * Derived state for optimizations:
713 GLbitfield _EnabledLights
; /**< bitmask containing enabled lights */
715 GLboolean _NeedEyeCoords
;
716 GLboolean _NeedVertices
; /**< Use fast shader? */
718 GLfloat _BaseColor
[2][3];
724 * Line attribute group (GL_LINE_BIT).
726 struct gl_line_attrib
728 GLboolean SmoothFlag
; /**< GL_LINE_SMOOTH enabled? */
729 GLboolean StippleFlag
; /**< GL_LINE_STIPPLE enabled? */
730 GLushort StipplePattern
; /**< Stipple pattern */
731 GLint StippleFactor
; /**< Stipple repeat factor */
732 GLfloat Width
; /**< Line width */
737 * Display list attribute group (GL_LIST_BIT).
739 struct gl_list_attrib
746 * Multisample attribute group (GL_MULTISAMPLE_BIT).
748 struct gl_multisample_attrib
751 GLboolean SampleAlphaToCoverage
;
752 GLboolean SampleAlphaToOne
;
753 GLboolean SampleCoverage
;
754 GLboolean SampleCoverageInvert
;
755 GLboolean SampleShading
;
757 /* ARB_texture_multisample / GL3.2 additions */
758 GLboolean SampleMask
;
760 GLfloat SampleCoverageValue
; /**< In range [0, 1] */
761 GLfloat MinSampleShadingValue
; /**< In range [0, 1] */
763 /** The GL spec defines this as an array but >32x MSAA is madness */
764 GLbitfield SampleMaskValue
;
769 * A pixelmap (see glPixelMap)
774 GLfloat Map
[MAX_PIXEL_MAP_TABLE
];
779 * Collection of all pixelmaps
783 struct gl_pixelmap RtoR
; /**< i.e. GL_PIXEL_MAP_R_TO_R */
784 struct gl_pixelmap GtoG
;
785 struct gl_pixelmap BtoB
;
786 struct gl_pixelmap AtoA
;
787 struct gl_pixelmap ItoR
;
788 struct gl_pixelmap ItoG
;
789 struct gl_pixelmap ItoB
;
790 struct gl_pixelmap ItoA
;
791 struct gl_pixelmap ItoI
;
792 struct gl_pixelmap StoS
;
797 * Pixel attribute group (GL_PIXEL_MODE_BIT).
799 struct gl_pixel_attrib
801 GLenum16 ReadBuffer
; /**< source buffer for glRead/CopyPixels() */
803 /*--- Begin Pixel Transfer State ---*/
804 /* Fields are in the order in which they're applied... */
806 /** Scale & Bias (index shift, offset) */
808 GLfloat RedBias
, RedScale
;
809 GLfloat GreenBias
, GreenScale
;
810 GLfloat BlueBias
, BlueScale
;
811 GLfloat AlphaBias
, AlphaScale
;
812 GLfloat DepthBias
, DepthScale
;
813 GLint IndexShift
, IndexOffset
;
817 /* Note: actual pixel maps are not part of this attrib group */
818 GLboolean MapColorFlag
;
819 GLboolean MapStencilFlag
;
821 /*--- End Pixel Transfer State ---*/
824 GLfloat ZoomX
, ZoomY
;
829 * Point attribute group (GL_POINT_BIT).
831 struct gl_point_attrib
833 GLfloat Size
; /**< User-specified point size */
834 GLfloat Params
[3]; /**< GL_EXT_point_parameters */
835 GLfloat MinSize
, MaxSize
; /**< GL_EXT_point_parameters */
836 GLfloat Threshold
; /**< GL_EXT_point_parameters */
837 GLboolean SmoothFlag
; /**< True if GL_POINT_SMOOTH is enabled */
838 GLboolean _Attenuated
; /**< True if Params != [1, 0, 0] */
839 GLboolean PointSprite
; /**< GL_NV/ARB_point_sprite */
840 GLbitfield CoordReplace
; /**< GL_ARB_point_sprite*/
841 GLenum16 SpriteRMode
; /**< GL_NV_point_sprite (only!) */
842 GLenum16 SpriteOrigin
; /**< GL_ARB_point_sprite */
847 * Polygon attribute group (GL_POLYGON_BIT).
849 struct gl_polygon_attrib
851 GLenum16 FrontFace
; /**< Either GL_CW or GL_CCW */
852 GLenum FrontMode
; /**< Either GL_POINT, GL_LINE or GL_FILL */
853 GLenum BackMode
; /**< Either GL_POINT, GL_LINE or GL_FILL */
854 GLboolean CullFlag
; /**< Culling on/off flag */
855 GLboolean SmoothFlag
; /**< True if GL_POLYGON_SMOOTH is enabled */
856 GLboolean StippleFlag
; /**< True if GL_POLYGON_STIPPLE is enabled */
857 GLenum16 CullFaceMode
; /**< Culling mode GL_FRONT or GL_BACK */
858 GLfloat OffsetFactor
; /**< Polygon offset factor, from user */
859 GLfloat OffsetUnits
; /**< Polygon offset units, from user */
860 GLfloat OffsetClamp
; /**< Polygon offset clamp, from user */
861 GLboolean OffsetPoint
; /**< Offset in GL_POINT mode */
862 GLboolean OffsetLine
; /**< Offset in GL_LINE mode */
863 GLboolean OffsetFill
; /**< Offset in GL_FILL mode */
868 * Scissor attributes (GL_SCISSOR_BIT).
870 struct gl_scissor_rect
872 GLint X
, Y
; /**< Lower left corner of box */
873 GLsizei Width
, Height
; /**< Size of box */
877 struct gl_scissor_attrib
879 GLbitfield EnableFlags
; /**< Scissor test enabled? */
880 struct gl_scissor_rect ScissorArray
[MAX_VIEWPORTS
];
881 GLint NumWindowRects
; /**< Count of enabled window rectangles */
882 GLenum16 WindowRectMode
; /**< Whether to include or exclude the rects */
883 struct gl_scissor_rect WindowRects
[MAX_WINDOW_RECTANGLES
];
888 * Stencil attribute group (GL_STENCIL_BUFFER_BIT).
890 * Three sets of stencil data are tracked so that OpenGL 2.0,
891 * GL_EXT_stencil_two_side, and GL_ATI_separate_stencil can all be supported
892 * simultaneously. In each of the stencil state arrays, element 0 corresponds
893 * to GL_FRONT. Element 1 corresponds to the OpenGL 2.0 /
894 * GL_ATI_separate_stencil GL_BACK state. Element 2 corresponds to the
895 * GL_EXT_stencil_two_side GL_BACK state.
897 * The derived value \c _BackFace is either 1 or 2 depending on whether or
898 * not GL_STENCIL_TEST_TWO_SIDE_EXT is enabled.
900 * The derived value \c _TestTwoSide is set when the front-face and back-face
901 * stencil state are different.
903 struct gl_stencil_attrib
905 GLboolean Enabled
; /**< Enabled flag */
906 GLboolean TestTwoSide
; /**< GL_EXT_stencil_two_side */
907 GLubyte ActiveFace
; /**< GL_EXT_stencil_two_side (0 or 2) */
908 GLubyte _BackFace
; /**< Current back stencil state (1 or 2) */
909 GLenum16 Function
[3]; /**< Stencil function */
910 GLenum16 FailFunc
[3]; /**< Fail function */
911 GLenum16 ZPassFunc
[3]; /**< Depth buffer pass function */
912 GLenum16 ZFailFunc
[3]; /**< Depth buffer fail function */
913 GLint Ref
[3]; /**< Reference value */
914 GLuint ValueMask
[3]; /**< Value mask */
915 GLuint WriteMask
[3]; /**< Write mask */
916 GLuint Clear
; /**< Clear value */
921 * An index for each type of texture object. These correspond to the GL
922 * texture target enums, such as GL_TEXTURE_2D, GL_TEXTURE_CUBE_MAP, etc.
923 * Note: the order is from highest priority to lowest priority.
927 TEXTURE_2D_MULTISAMPLE_INDEX
,
928 TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX
,
929 TEXTURE_CUBE_ARRAY_INDEX
,
930 TEXTURE_BUFFER_INDEX
,
931 TEXTURE_2D_ARRAY_INDEX
,
932 TEXTURE_1D_ARRAY_INDEX
,
933 TEXTURE_EXTERNAL_INDEX
,
944 * Bit flags for each type of texture object
947 #define TEXTURE_2D_MULTISAMPLE_BIT (1 << TEXTURE_2D_MULTISAMPLE_INDEX)
948 #define TEXTURE_2D_MULTISAMPLE_ARRAY_BIT (1 << TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX)
949 #define TEXTURE_CUBE_ARRAY_BIT (1 << TEXTURE_CUBE_ARRAY_INDEX)
950 #define TEXTURE_BUFFER_BIT (1 << TEXTURE_BUFFER_INDEX)
951 #define TEXTURE_2D_ARRAY_BIT (1 << TEXTURE_2D_ARRAY_INDEX)
952 #define TEXTURE_1D_ARRAY_BIT (1 << TEXTURE_1D_ARRAY_INDEX)
953 #define TEXTURE_EXTERNAL_BIT (1 << TEXTURE_EXTERNAL_INDEX)
954 #define TEXTURE_CUBE_BIT (1 << TEXTURE_CUBE_INDEX)
955 #define TEXTURE_3D_BIT (1 << TEXTURE_3D_INDEX)
956 #define TEXTURE_RECT_BIT (1 << TEXTURE_RECT_INDEX)
957 #define TEXTURE_2D_BIT (1 << TEXTURE_2D_INDEX)
958 #define TEXTURE_1D_BIT (1 << TEXTURE_1D_INDEX)
963 * Texture image state. Drivers will typically create a subclass of this
964 * with extra fields for memory buffers, etc.
966 struct gl_texture_image
968 GLint InternalFormat
; /**< Internal format as given by the user */
969 GLenum _BaseFormat
; /**< Either GL_RGB, GL_RGBA, GL_ALPHA,
970 * GL_LUMINANCE, GL_LUMINANCE_ALPHA,
971 * GL_INTENSITY, GL_DEPTH_COMPONENT or
972 * GL_DEPTH_STENCIL_EXT only. Used for
973 * choosing TexEnv arithmetic.
975 mesa_format TexFormat
; /**< The actual texture memory format */
977 GLuint Border
; /**< 0 or 1 */
978 GLuint Width
; /**< = 2^WidthLog2 + 2*Border */
979 GLuint Height
; /**< = 2^HeightLog2 + 2*Border */
980 GLuint Depth
; /**< = 2^DepthLog2 + 2*Border */
981 GLuint Width2
; /**< = Width - 2*Border */
982 GLuint Height2
; /**< = Height - 2*Border */
983 GLuint Depth2
; /**< = Depth - 2*Border */
984 GLuint WidthLog2
; /**< = log2(Width2) */
985 GLuint HeightLog2
; /**< = log2(Height2) */
986 GLuint DepthLog2
; /**< = log2(Depth2) */
987 GLuint MaxNumLevels
; /**< = maximum possible number of mipmap
988 levels, computed from the dimensions */
990 struct gl_texture_object
*TexObject
; /**< Pointer back to parent object */
991 GLuint Level
; /**< Which mipmap level am I? */
992 /** Cube map face: index into gl_texture_object::Image[] array */
995 /** GL_ARB_texture_multisample */
996 GLuint NumSamples
; /**< Sample count, or 0 for non-multisample */
997 GLboolean FixedSampleLocations
; /**< Same sample locations for all pixels? */
1002 * Indexes for cube map faces.
1017 * Sampler object state. These objects are new with GL_ARB_sampler_objects
1018 * and OpenGL 3.3. Legacy texture objects also contain a sampler object.
1020 struct gl_sampler_object
1025 GLchar
*Label
; /**< GL_KHR_debug */
1027 GLenum16 WrapS
; /**< S-axis texture image wrap mode */
1028 GLenum16 WrapT
; /**< T-axis texture image wrap mode */
1029 GLenum16 WrapR
; /**< R-axis texture image wrap mode */
1030 GLenum16 MinFilter
; /**< minification filter */
1031 GLenum16 MagFilter
; /**< magnification filter */
1032 union gl_color_union BorderColor
; /**< Interpreted according to texture format */
1033 GLfloat MinLod
; /**< min lambda, OpenGL 1.2 */
1034 GLfloat MaxLod
; /**< max lambda, OpenGL 1.2 */
1035 GLfloat LodBias
; /**< OpenGL 1.4 */
1036 GLfloat MaxAnisotropy
; /**< GL_EXT_texture_filter_anisotropic */
1037 GLenum16 CompareMode
; /**< GL_ARB_shadow */
1038 GLenum16 CompareFunc
; /**< GL_ARB_shadow */
1039 GLenum16 sRGBDecode
; /**< GL_DECODE_EXT or GL_SKIP_DECODE_EXT */
1040 GLboolean CubeMapSeamless
; /**< GL_AMD_seamless_cubemap_per_texture */
1042 /** GL_ARB_bindless_texture */
1043 bool HandleAllocated
;
1044 struct util_dynarray Handles
;
1049 * Texture object state. Contains the array of mipmap images, border color,
1050 * wrap modes, filter modes, and shadow/texcompare state.
1052 struct gl_texture_object
1054 simple_mtx_t Mutex
; /**< for thread safety */
1055 GLint RefCount
; /**< reference count */
1056 GLuint Name
; /**< the user-visible texture object ID */
1057 GLchar
*Label
; /**< GL_KHR_debug */
1058 GLenum16 Target
; /**< GL_TEXTURE_1D, GL_TEXTURE_2D, etc. */
1059 gl_texture_index TargetIndex
; /**< The gl_texture_unit::CurrentTex index.
1060 Only valid when Target is valid. */
1062 struct gl_sampler_object Sampler
;
1064 GLenum16 DepthMode
; /**< GL_ARB_depth_texture */
1066 GLfloat Priority
; /**< in [0,1] */
1067 GLint BaseLevel
; /**< min mipmap level, OpenGL 1.2 */
1068 GLint MaxLevel
; /**< max mipmap level, OpenGL 1.2 */
1069 GLint ImmutableLevels
; /**< ES 3.0 / ARB_texture_view */
1070 GLint _MaxLevel
; /**< actual max mipmap level (q in the spec) */
1071 GLfloat _MaxLambda
; /**< = _MaxLevel - BaseLevel (q - p in spec) */
1072 GLint CropRect
[4]; /**< GL_OES_draw_texture */
1073 GLenum Swizzle
[4]; /**< GL_EXT_texture_swizzle */
1074 GLuint _Swizzle
; /**< same as Swizzle, but SWIZZLE_* format */
1075 GLboolean GenerateMipmap
; /**< GL_SGIS_generate_mipmap */
1076 GLboolean _BaseComplete
; /**< Is the base texture level valid? */
1077 GLboolean _MipmapComplete
; /**< Is the whole mipmap valid? */
1078 GLboolean _IsIntegerFormat
; /**< Does the texture store integer values? */
1079 GLboolean _RenderToTexture
; /**< Any rendering to this texture? */
1080 GLboolean Purgeable
; /**< Is the buffer purgeable under memory
1082 GLboolean Immutable
; /**< GL_ARB_texture_storage */
1083 GLboolean _IsFloat
; /**< GL_OES_float_texture */
1084 GLboolean _IsHalfFloat
; /**< GL_OES_half_float_texture */
1085 bool StencilSampling
; /**< Should we sample stencil instead of depth? */
1086 bool HandleAllocated
; /**< GL_ARB_bindless_texture */
1088 GLuint MinLevel
; /**< GL_ARB_texture_view */
1089 GLuint MinLayer
; /**< GL_ARB_texture_view */
1090 GLuint NumLevels
; /**< GL_ARB_texture_view */
1091 GLuint NumLayers
; /**< GL_ARB_texture_view */
1093 /** GL_EXT_memory_object */
1094 GLenum16 TextureTiling
;
1096 /** Actual texture images, indexed by [cube face] and [mipmap level] */
1097 struct gl_texture_image
*Image
[MAX_FACES
][MAX_TEXTURE_LEVELS
];
1099 /** GL_ARB_texture_buffer_object */
1100 struct gl_buffer_object
*BufferObject
;
1101 GLenum16 BufferObjectFormat
;
1102 /** Equivalent Mesa format for BufferObjectFormat. */
1103 mesa_format _BufferObjectFormat
;
1104 /** GL_ARB_texture_buffer_range */
1105 GLintptr BufferOffset
;
1106 GLsizeiptr BufferSize
; /**< if this is -1, use BufferObject->Size instead */
1108 /** GL_OES_EGL_image_external */
1109 GLint RequiredTextureImageUnits
;
1111 /** GL_ARB_shader_image_load_store */
1112 GLenum16 ImageFormatCompatibilityType
;
1114 /** GL_ARB_bindless_texture */
1115 struct util_dynarray SamplerHandles
;
1116 struct util_dynarray ImageHandles
;
1120 /** Up to four combiner sources are possible with GL_NV_texture_env_combine4 */
1121 #define MAX_COMBINER_TERMS 4
1125 * Texture combine environment state.
1127 struct gl_tex_env_combine_state
1129 GLenum16 ModeRGB
; /**< GL_REPLACE, GL_DECAL, GL_ADD, etc. */
1130 GLenum16 ModeA
; /**< GL_REPLACE, GL_DECAL, GL_ADD, etc. */
1131 /** Source terms: GL_PRIMARY_COLOR, GL_TEXTURE, etc */
1132 GLenum16 SourceRGB
[MAX_COMBINER_TERMS
];
1133 GLenum16 SourceA
[MAX_COMBINER_TERMS
];
1134 /** Source operands: GL_SRC_COLOR, GL_ONE_MINUS_SRC_COLOR, etc */
1135 GLenum16 OperandRGB
[MAX_COMBINER_TERMS
];
1136 GLenum16 OperandA
[MAX_COMBINER_TERMS
];
1137 GLuint ScaleShiftRGB
; /**< 0, 1 or 2 */
1138 GLuint ScaleShiftA
; /**< 0, 1 or 2 */
1139 GLuint _NumArgsRGB
; /**< Number of inputs used for the RGB combiner */
1140 GLuint _NumArgsA
; /**< Number of inputs used for the A combiner */
1144 /** Compressed TexEnv effective Combine mode */
1145 enum gl_tex_env_mode
1147 TEXENV_MODE_REPLACE
, /* r = a0 */
1148 TEXENV_MODE_MODULATE
, /* r = a0 * a1 */
1149 TEXENV_MODE_ADD
, /* r = a0 + a1 */
1150 TEXENV_MODE_ADD_SIGNED
, /* r = a0 + a1 - 0.5 */
1151 TEXENV_MODE_INTERPOLATE
, /* r = a0 * a2 + a1 * (1 - a2) */
1152 TEXENV_MODE_SUBTRACT
, /* r = a0 - a1 */
1153 TEXENV_MODE_DOT3_RGB
, /* r = a0 . a1 */
1154 TEXENV_MODE_DOT3_RGB_EXT
, /* r = a0 . a1 */
1155 TEXENV_MODE_DOT3_RGBA
, /* r = a0 . a1 */
1156 TEXENV_MODE_DOT3_RGBA_EXT
, /* r = a0 . a1 */
1157 TEXENV_MODE_MODULATE_ADD_ATI
, /* r = a0 * a2 + a1 */
1158 TEXENV_MODE_MODULATE_SIGNED_ADD_ATI
, /* r = a0 * a2 + a1 - 0.5 */
1159 TEXENV_MODE_MODULATE_SUBTRACT_ATI
, /* r = a0 * a2 - a1 */
1160 TEXENV_MODE_ADD_PRODUCTS_NV
, /* r = a0 * a1 + a2 * a3 */
1161 TEXENV_MODE_ADD_PRODUCTS_SIGNED_NV
, /* r = a0 * a1 + a2 * a3 - 0.5 */
1165 /** Compressed TexEnv Combine source */
1166 enum gl_tex_env_source
1168 TEXENV_SRC_TEXTURE0
,
1169 TEXENV_SRC_TEXTURE1
,
1170 TEXENV_SRC_TEXTURE2
,
1171 TEXENV_SRC_TEXTURE3
,
1172 TEXENV_SRC_TEXTURE4
,
1173 TEXENV_SRC_TEXTURE5
,
1174 TEXENV_SRC_TEXTURE6
,
1175 TEXENV_SRC_TEXTURE7
,
1177 TEXENV_SRC_PREVIOUS
,
1178 TEXENV_SRC_PRIMARY_COLOR
,
1179 TEXENV_SRC_CONSTANT
,
1185 /** Compressed TexEnv Combine operand */
1186 enum gl_tex_env_operand
1189 TEXENV_OPR_ONE_MINUS_COLOR
,
1191 TEXENV_OPR_ONE_MINUS_ALPHA
,
1195 /** Compressed TexEnv Combine argument */
1196 struct gl_tex_env_argument
1199 __extension__
uint8_t Source
:4; /**< TEXENV_SRC_x */
1200 __extension__
uint8_t Operand
:2; /**< TEXENV_OPR_x */
1202 uint8_t Source
; /**< SRC_x */
1203 uint8_t Operand
; /**< OPR_x */
1209 * Compressed TexEnv Combine state.
1211 struct gl_tex_env_combine_packed
1213 uint32_t ModeRGB
:4; /**< Effective mode for RGB as 4 bits */
1214 uint32_t ModeA
:4; /**< Effective mode for RGB as 4 bits */
1215 uint32_t ScaleShiftRGB
:2; /**< 0, 1 or 2 */
1216 uint32_t ScaleShiftA
:2; /**< 0, 1 or 2 */
1217 uint32_t NumArgsRGB
:3; /**< Number of inputs used for the RGB combiner */
1218 uint32_t NumArgsA
:3; /**< Number of inputs used for the A combiner */
1219 /** Source arguments in a packed manner */
1220 struct gl_tex_env_argument ArgsRGB
[MAX_COMBINER_TERMS
];
1221 struct gl_tex_env_argument ArgsA
[MAX_COMBINER_TERMS
];
1226 * TexGenEnabled flags.
1233 #define STR_BITS (S_BIT | T_BIT | R_BIT)
1238 * Bit flag versions of the corresponding GL_ constants.
1241 #define TEXGEN_SPHERE_MAP 0x1
1242 #define TEXGEN_OBJ_LINEAR 0x2
1243 #define TEXGEN_EYE_LINEAR 0x4
1244 #define TEXGEN_REFLECTION_MAP_NV 0x8
1245 #define TEXGEN_NORMAL_MAP_NV 0x10
1247 #define TEXGEN_NEED_NORMALS (TEXGEN_SPHERE_MAP | \
1248 TEXGEN_REFLECTION_MAP_NV | \
1249 TEXGEN_NORMAL_MAP_NV)
1250 #define TEXGEN_NEED_EYE_COORD (TEXGEN_SPHERE_MAP | \
1251 TEXGEN_REFLECTION_MAP_NV | \
1252 TEXGEN_NORMAL_MAP_NV | \
1258 /** Tex-gen enabled for texture unit? */
1259 #define ENABLE_TEXGEN(unit) (1 << (unit))
1261 /** Non-identity texture matrix for texture unit? */
1262 #define ENABLE_TEXMAT(unit) (1 << (unit))
1266 * Texture coord generation state.
1270 GLenum16 Mode
; /**< GL_EYE_LINEAR, GL_SPHERE_MAP, etc */
1271 GLbitfield _ModeBit
; /**< TEXGEN_x bit corresponding to Mode */
1272 GLfloat ObjectPlane
[4];
1273 GLfloat EyePlane
[4];
1278 * Texture unit state. Contains enable flags, texture environment/function/
1279 * combiners, texgen state, and pointers to current texture objects.
1281 struct gl_texture_unit
1283 GLbitfield Enabled
; /**< bitmask of TEXTURE_*_BIT flags */
1285 GLenum16 EnvMode
; /**< GL_MODULATE, GL_DECAL, GL_BLEND, etc. */
1286 GLclampf EnvColor
[4];
1287 GLfloat EnvColorUnclamped
[4];
1289 struct gl_texgen GenS
;
1290 struct gl_texgen GenT
;
1291 struct gl_texgen GenR
;
1292 struct gl_texgen GenQ
;
1293 GLbitfield TexGenEnabled
; /**< Bitwise-OR of [STRQ]_BIT values */
1294 GLbitfield _GenFlags
; /**< Bitwise-OR of Gen[STRQ]._ModeBit */
1296 GLfloat LodBias
; /**< for biasing mipmap levels */
1298 /** Texture targets that have a non-default texture bound */
1299 GLbitfield _BoundTextures
;
1301 /** Current sampler object (GL_ARB_sampler_objects) */
1302 struct gl_sampler_object
*Sampler
;
1305 * \name GL_EXT_texture_env_combine
1307 struct gl_tex_env_combine_state Combine
;
1310 * Derived state based on \c EnvMode and the \c BaseFormat of the
1311 * currently enabled texture.
1313 struct gl_tex_env_combine_state _EnvMode
;
1316 * Currently enabled combiner state. This will point to either
1317 * \c Combine or \c _EnvMode.
1319 struct gl_tex_env_combine_state
*_CurrentCombine
;
1321 /** Current texture object pointers */
1322 struct gl_texture_object
*CurrentTex
[NUM_TEXTURE_TARGETS
];
1324 /** Points to highest priority, complete and enabled texture object */
1325 struct gl_texture_object
*_Current
;
1327 /** Current compressed TexEnv & Combine state */
1328 struct gl_tex_env_combine_packed _CurrentCombinePacked
;
1333 * Texture attribute group (GL_TEXTURE_BIT).
1335 struct gl_texture_attrib
1337 GLuint CurrentUnit
; /**< GL_ACTIVE_TEXTURE */
1339 /** GL_ARB_seamless_cubemap */
1340 GLboolean CubeMapSeamless
;
1342 struct gl_texture_object
*ProxyTex
[NUM_TEXTURE_TARGETS
];
1344 /** GL_ARB_texture_buffer_object */
1345 struct gl_buffer_object
*BufferObject
;
1347 /** Texture coord units/sets used for fragment texturing */
1348 GLbitfield _EnabledCoordUnits
;
1350 /** Texture coord units that have texgen enabled */
1351 GLbitfield _TexGenEnabled
;
1353 /** Texture coord units that have non-identity matrices */
1354 GLbitfield _TexMatEnabled
;
1356 /** Bitwise-OR of all Texture.Unit[i]._GenFlags */
1357 GLbitfield _GenFlags
;
1359 /** Largest index of a texture unit with _Current != NULL. */
1360 GLint _MaxEnabledTexImageUnit
;
1362 /** Largest index + 1 of texture units that have had any CurrentTex set. */
1363 GLint NumCurrentTexUsed
;
1365 struct gl_texture_unit Unit
[MAX_COMBINED_TEXTURE_IMAGE_UNITS
];
1370 * Data structure representing a single clip plane (e.g. one of the elements
1371 * of the ctx->Transform.EyeUserPlane or ctx->Transform._ClipUserPlane array).
1373 typedef GLfloat gl_clip_plane
[4];
1377 * Transformation attribute group (GL_TRANSFORM_BIT).
1379 struct gl_transform_attrib
1381 GLenum16 MatrixMode
; /**< Matrix mode */
1382 gl_clip_plane EyeUserPlane
[MAX_CLIP_PLANES
]; /**< User clip planes */
1383 gl_clip_plane _ClipUserPlane
[MAX_CLIP_PLANES
]; /**< derived */
1384 GLbitfield ClipPlanesEnabled
; /**< on/off bitmask */
1385 GLboolean Normalize
; /**< Normalize all normals? */
1386 GLboolean RescaleNormals
; /**< GL_EXT_rescale_normal */
1387 GLboolean RasterPositionUnclipped
; /**< GL_IBM_rasterpos_clip */
1388 GLboolean DepthClamp
; /**< GL_ARB_depth_clamp */
1389 /** GL_ARB_clip_control */
1390 GLenum16 ClipOrigin
; /**< GL_LOWER_LEFT or GL_UPPER_LEFT */
1391 GLenum16 ClipDepthMode
;/**< GL_NEGATIVE_ONE_TO_ONE or GL_ZERO_TO_ONE */
1396 * Viewport attribute group (GL_VIEWPORT_BIT).
1398 struct gl_viewport_attrib
1400 GLfloat X
, Y
; /**< position */
1401 GLfloat Width
, Height
; /**< size */
1402 GLdouble Near
, Far
; /**< Depth buffer range */
1411 } gl_map_buffer_index
;
1415 * Fields describing a mapped buffer range.
1417 struct gl_buffer_mapping
1419 GLbitfield AccessFlags
; /**< Mask of GL_MAP_x_BIT flags */
1420 GLvoid
*Pointer
; /**< User-space address of mapping */
1421 GLintptr Offset
; /**< Mapped offset */
1422 GLsizeiptr Length
; /**< Mapped length */
1427 * Usages we've seen for a buffer object.
1431 USAGE_UNIFORM_BUFFER
= 0x1,
1432 USAGE_TEXTURE_BUFFER
= 0x2,
1433 USAGE_ATOMIC_COUNTER_BUFFER
= 0x4,
1434 USAGE_SHADER_STORAGE_BUFFER
= 0x8,
1435 USAGE_TRANSFORM_FEEDBACK_BUFFER
= 0x10,
1436 USAGE_PIXEL_PACK_BUFFER
= 0x20,
1437 USAGE_DISABLE_MINMAX_CACHE
= 0x40,
1442 * GL_ARB_vertex/pixel_buffer_object buffer object
1444 struct gl_buffer_object
1449 GLchar
*Label
; /**< GL_KHR_debug */
1450 GLenum16 Usage
; /**< GL_STREAM_DRAW_ARB, GL_STREAM_READ_ARB, etc. */
1451 GLbitfield StorageFlags
; /**< GL_MAP_PERSISTENT_BIT, etc. */
1452 GLsizeiptrARB Size
; /**< Size of buffer storage in bytes */
1453 GLubyte
*Data
; /**< Location of storage either in RAM or VRAM. */
1454 GLboolean DeletePending
; /**< true if buffer object is removed from the hash */
1455 GLboolean Written
; /**< Ever written to? (for debugging) */
1456 GLboolean Purgeable
; /**< Is the buffer purgeable under memory pressure? */
1457 GLboolean Immutable
; /**< GL_ARB_buffer_storage */
1458 gl_buffer_usage UsageHistory
; /**< How has this buffer been used so far? */
1460 /** Counters used for buffer usage warnings */
1461 GLuint NumSubDataCalls
;
1462 GLuint NumMapBufferWriteCalls
;
1464 struct gl_buffer_mapping Mappings
[MAP_COUNT
];
1466 /** Memoization of min/max index computations for static index buffers */
1467 struct hash_table
*MinMaxCache
;
1468 unsigned MinMaxCacheHitIndices
;
1469 unsigned MinMaxCacheMissIndices
;
1470 bool MinMaxCacheDirty
;
1472 bool HandleAllocated
; /**< GL_ARB_bindless_texture */
1477 * Client pixel packing/unpacking attributes
1479 struct gl_pixelstore_attrib
1487 GLboolean SwapBytes
;
1489 GLboolean Invert
; /**< GL_MESA_pack_invert */
1490 GLint CompressedBlockWidth
; /**< GL_ARB_compressed_texture_pixel_storage */
1491 GLint CompressedBlockHeight
;
1492 GLint CompressedBlockDepth
;
1493 GLint CompressedBlockSize
;
1494 struct gl_buffer_object
*BufferObj
; /**< GL_ARB_pixel_buffer_object */
1499 * Vertex array information which is derived from gl_array_attributes
1500 * and gl_vertex_buffer_binding information. Used by the VBO module and
1503 struct gl_vertex_array
1505 /** if NULL, vertex data are in user memory */
1506 struct gl_buffer_object
*BufferObj
;
1507 /** Pointer into user memory, or offset into the BufferObj */
1509 GLsizei StrideB
; /**< actual stride in bytes */
1510 GLuint InstanceDivisor
; /**< GL_ARB_instanced_arrays */
1511 GLenum16 Type
; /**< datatype: GL_FLOAT, GL_INT, etc */
1512 GLenum16 Format
; /**< default: GL_RGBA, but may be GL_BGRA */
1513 unsigned Size
:4; /**< components per element (1,2,3,4) */
1514 unsigned _ElementSize
:8; /**< in bytes, up to 4*sizeof(GLdouble) */
1515 unsigned Normalized
:1; /**< GL_ARB_vertex_program */
1516 unsigned Integer
:1; /**< Integer-valued? */
1517 unsigned Doubles
:1; /**< doubles not converted to floats */
1522 * Enum for defining the mapping for the position/generic0 attribute.
1524 * Do not change the order of the values as these are used as
1529 ATTRIBUTE_MAP_MODE_IDENTITY
, /**< 1:1 mapping */
1530 ATTRIBUTE_MAP_MODE_POSITION
, /**< get position and generic0 from position */
1531 ATTRIBUTE_MAP_MODE_GENERIC0
, /**< get position and generic0 from generic0 */
1532 ATTRIBUTE_MAP_MODE_MAX
/**< for sizing arrays */
1533 } gl_attribute_map_mode
;
1537 * Attributes to describe a vertex array.
1539 * Contains the size, type, format and normalization flag,
1540 * along with the index of a vertex buffer binding point.
1542 * Note that the Stride field corresponds to VERTEX_ATTRIB_ARRAY_STRIDE
1543 * and is only present for backwards compatibility reasons.
1544 * Rendering always uses VERTEX_BINDING_STRIDE.
1545 * The gl*Pointer() functions will set VERTEX_ATTRIB_ARRAY_STRIDE
1546 * and VERTEX_BINDING_STRIDE to the same value, while
1547 * glBindVertexBuffer() will only set VERTEX_BINDING_STRIDE.
1549 struct gl_array_attributes
1551 /** Points to client array data. Not used when a VBO is bound */
1553 /** Offset of the first element relative to the binding offset */
1554 GLuint RelativeOffset
;
1555 GLshort Stride
; /**< Stride as specified with gl*Pointer() */
1556 GLenum16 Type
; /**< Datatype: GL_FLOAT, GL_INT, etc */
1557 GLenum16 Format
; /**< Default: GL_RGBA, but may be GL_BGRA */
1558 GLboolean Enabled
; /**< Whether the array is enabled */
1559 GLubyte Size
; /**< Components per element (1,2,3,4) */
1560 unsigned Normalized
:1; /**< Fixed-point values are normalized when converted to floats */
1561 unsigned Integer
:1; /**< Fixed-point values are not converted to floats */
1562 unsigned Doubles
:1; /**< double precision values are not converted to floats */
1563 unsigned _ElementSize
:8; /**< Size of each element in bytes */
1564 /** Index into gl_vertex_array_object::BufferBinding[] array */
1565 unsigned BufferBindingIndex
:6;
1570 * This describes the buffer object used for a vertex array (or
1571 * multiple vertex arrays). If BufferObj points to the default/null
1572 * buffer object, then the vertex array lives in user memory and not a VBO.
1574 struct gl_vertex_buffer_binding
1576 GLintptr Offset
; /**< User-specified offset */
1577 GLsizei Stride
; /**< User-specified stride */
1578 GLuint InstanceDivisor
; /**< GL_ARB_instanced_arrays */
1579 struct gl_buffer_object
*BufferObj
; /**< GL_ARB_vertex_buffer_object */
1580 GLbitfield _BoundArrays
; /**< Arrays bound to this binding point */
1585 * A representation of "Vertex Array Objects" (VAOs) from OpenGL 3.1+ /
1586 * the GL_ARB_vertex_array_object extension.
1588 struct gl_vertex_array_object
1590 /** Name of the VAO as received from glGenVertexArray. */
1595 GLchar
*Label
; /**< GL_KHR_debug */
1598 * Has this array object been bound?
1600 GLboolean EverBound
;
1603 * Derived vertex attribute arrays
1605 * This is a legacy data structure created from gl_array_attributes and
1606 * gl_vertex_buffer_binding, for compatibility with existing driver code.
1608 struct gl_vertex_array _VertexAttrib
[VERT_ATTRIB_MAX
];
1610 /** Vertex attribute arrays */
1611 struct gl_array_attributes VertexAttrib
[VERT_ATTRIB_MAX
];
1613 /** Vertex buffer bindings */
1614 struct gl_vertex_buffer_binding BufferBinding
[VERT_ATTRIB_MAX
];
1616 /** Mask indicating which vertex arrays have vertex buffer associated. */
1617 GLbitfield VertexAttribBufferMask
;
1619 /** Mask of VERT_BIT_* values indicating which arrays are enabled */
1620 GLbitfield _Enabled
;
1622 /** Denotes the way the position/generic0 attribute is mapped */
1623 gl_attribute_map_mode _AttributeMapMode
;
1625 /** Mask of VERT_BIT_* values indicating changed/dirty arrays */
1626 GLbitfield NewArrays
;
1628 /** The index buffer (also known as the element array buffer in OpenGL). */
1629 struct gl_buffer_object
*IndexBufferObj
;
1634 * Enum for the OpenGL APIs we know about and may support.
1636 * NOTE: This must match the api_enum table in
1637 * src/mesa/main/get_hash_generator.py
1641 API_OPENGL_COMPAT
, /* legacy / compatibility contexts */
1645 API_OPENGL_LAST
= API_OPENGL_CORE
1650 * Vertex array state
1652 struct gl_array_attrib
1654 /** Currently bound array object. */
1655 struct gl_vertex_array_object
*VAO
;
1657 /** The default vertex array object */
1658 struct gl_vertex_array_object
*DefaultVAO
;
1660 /** The last VAO accessed by a DSA function */
1661 struct gl_vertex_array_object
*LastLookedUpVAO
;
1663 /** Array objects (GL_ARB_vertex_array_object) */
1664 struct _mesa_HashTable
*Objects
;
1666 GLint ActiveTexture
; /**< Client Active Texture */
1667 GLuint LockFirst
; /**< GL_EXT_compiled_vertex_array */
1668 GLuint LockCount
; /**< GL_EXT_compiled_vertex_array */
1671 * \name Primitive restart controls
1673 * Primitive restart is enabled if either \c PrimitiveRestart or
1674 * \c PrimitiveRestartFixedIndex is set.
1677 GLboolean PrimitiveRestart
;
1678 GLboolean PrimitiveRestartFixedIndex
;
1679 GLboolean _PrimitiveRestart
;
1680 GLuint RestartIndex
;
1683 /* GL_ARB_vertex_buffer_object */
1684 struct gl_buffer_object
*ArrayBufferObj
;
1687 * Vertex arrays as consumed by a driver.
1688 * The array pointer is set up only by the VBO module.
1690 const struct gl_vertex_array
**_DrawArrays
; /**< 0..VERT_ATTRIB_MAX-1 */
1692 /** Legal array datatypes and the API for which they have been computed */
1693 GLbitfield LegalTypesMask
;
1694 gl_api LegalTypesMaskAPI
;
1699 * Feedback buffer state
1704 GLbitfield _Mask
; /**< FB_* bits */
1712 * Selection buffer state
1716 GLuint
*Buffer
; /**< selection buffer */
1717 GLuint BufferSize
; /**< size of the selection buffer */
1718 GLuint BufferCount
; /**< number of values in the selection buffer */
1719 GLuint Hits
; /**< number of records in the selection buffer */
1720 GLuint NameStackDepth
; /**< name stack depth */
1721 GLuint NameStack
[MAX_NAME_STACK_DEPTH
]; /**< name stack */
1722 GLboolean HitFlag
; /**< hit flag */
1723 GLfloat HitMinZ
; /**< minimum hit depth */
1724 GLfloat HitMaxZ
; /**< maximum hit depth */
1729 * 1-D Evaluator control points
1733 GLuint Order
; /**< Number of control points */
1734 GLfloat u1
, u2
, du
; /**< u1, u2, 1.0/(u2-u1) */
1735 GLfloat
*Points
; /**< Points to contiguous control points */
1740 * 2-D Evaluator control points
1744 GLuint Uorder
; /**< Number of control points in U dimension */
1745 GLuint Vorder
; /**< Number of control points in V dimension */
1748 GLfloat
*Points
; /**< Points to contiguous control points */
1753 * All evaluator control point state
1755 struct gl_evaluators
1761 struct gl_1d_map Map1Vertex3
;
1762 struct gl_1d_map Map1Vertex4
;
1763 struct gl_1d_map Map1Index
;
1764 struct gl_1d_map Map1Color4
;
1765 struct gl_1d_map Map1Normal
;
1766 struct gl_1d_map Map1Texture1
;
1767 struct gl_1d_map Map1Texture2
;
1768 struct gl_1d_map Map1Texture3
;
1769 struct gl_1d_map Map1Texture4
;
1776 struct gl_2d_map Map2Vertex3
;
1777 struct gl_2d_map Map2Vertex4
;
1778 struct gl_2d_map Map2Index
;
1779 struct gl_2d_map Map2Color4
;
1780 struct gl_2d_map Map2Normal
;
1781 struct gl_2d_map Map2Texture1
;
1782 struct gl_2d_map Map2Texture2
;
1783 struct gl_2d_map Map2Texture3
;
1784 struct gl_2d_map Map2Texture4
;
1789 struct gl_transform_feedback_varying_info
1800 * Per-output info vertex shaders for transform feedback.
1802 struct gl_transform_feedback_output
1804 uint32_t OutputRegister
;
1805 uint32_t OutputBuffer
;
1806 uint32_t NumComponents
;
1809 /** offset (in DWORDs) of this output within the interleaved structure */
1813 * Offset into the output register of the data to output. For example,
1814 * if NumComponents is 2 and ComponentOffset is 1, then the data to
1815 * offset is in the y and z components of the output register.
1817 uint32_t ComponentOffset
;
1821 struct gl_transform_feedback_buffer
1825 uint32_t NumVaryings
;
1828 * Total number of components stored in each buffer. This may be used by
1829 * hardware back-ends to determine the correct stride when interleaving
1830 * multiple transform feedback outputs in the same buffer.
1835 * Which transform feedback stream this buffer binding is associated with.
1841 /** Post-link transform feedback info. */
1842 struct gl_transform_feedback_info
1844 /* Was xfb enabled via the api or in shader layout qualifiers */
1847 unsigned NumOutputs
;
1849 /* Bitmask of active buffer indices. */
1850 unsigned ActiveBuffers
;
1852 struct gl_transform_feedback_output
*Outputs
;
1854 /** Transform feedback varyings used for the linking of this shader program.
1856 * Use for glGetTransformFeedbackVarying().
1858 struct gl_transform_feedback_varying_info
*Varyings
;
1861 struct gl_transform_feedback_buffer Buffers
[MAX_FEEDBACK_BUFFERS
];
1866 * Transform feedback object state
1868 struct gl_transform_feedback_object
1870 GLuint Name
; /**< AKA the object ID */
1872 GLchar
*Label
; /**< GL_KHR_debug */
1873 GLboolean Active
; /**< Is transform feedback enabled? */
1874 GLboolean Paused
; /**< Is transform feedback paused? */
1875 GLboolean EndedAnytime
; /**< Has EndTransformFeedback been called
1877 GLboolean EverBound
; /**< Has this object been bound? */
1880 * GLES: if Active is true, remaining number of primitives which can be
1881 * rendered without overflow. This is necessary to track because GLES
1882 * requires us to generate INVALID_OPERATION if a call to glDrawArrays or
1883 * glDrawArraysInstanced would overflow transform feedback buffers.
1884 * Undefined if Active is false.
1886 * Not tracked for desktop GL since it's unnecessary.
1888 unsigned GlesRemainingPrims
;
1891 * The program active when BeginTransformFeedback() was called.
1892 * When active and unpaused, this equals ctx->Shader.CurrentProgram[stage],
1893 * where stage is the pipeline stage that is the source of data for
1894 * transform feedback.
1896 struct gl_program
*program
;
1898 /** The feedback buffers */
1899 GLuint BufferNames
[MAX_FEEDBACK_BUFFERS
];
1900 struct gl_buffer_object
*Buffers
[MAX_FEEDBACK_BUFFERS
];
1902 /** Start of feedback data in dest buffer */
1903 GLintptr Offset
[MAX_FEEDBACK_BUFFERS
];
1906 * Max data to put into dest buffer (in bytes). Computed based on
1907 * RequestedSize and the actual size of the buffer.
1909 GLsizeiptr Size
[MAX_FEEDBACK_BUFFERS
];
1912 * Size that was specified when the buffer was bound. If the buffer was
1913 * bound with glBindBufferBase() or glBindBufferOffsetEXT(), this value is
1916 GLsizeiptr RequestedSize
[MAX_FEEDBACK_BUFFERS
];
1921 * Context state for transform feedback.
1923 struct gl_transform_feedback_state
1925 GLenum16 Mode
; /**< GL_POINTS, GL_LINES or GL_TRIANGLES */
1927 /** The general binding point (GL_TRANSFORM_FEEDBACK_BUFFER) */
1928 struct gl_buffer_object
*CurrentBuffer
;
1930 /** The table of all transform feedback objects */
1931 struct _mesa_HashTable
*Objects
;
1933 /** The current xform-fb object (GL_TRANSFORM_FEEDBACK_BINDING) */
1934 struct gl_transform_feedback_object
*CurrentObject
;
1936 /** The default xform-fb object (Name==0) */
1937 struct gl_transform_feedback_object
*DefaultObject
;
1942 * A "performance monitor" as described in AMD_performance_monitor.
1944 struct gl_perf_monitor_object
1948 /** True if the monitor is currently active (Begin called but not End). */
1952 * True if the monitor has ended.
1954 * This is distinct from !Active because it may never have began.
1959 * A list of groups with currently active counters.
1961 * ActiveGroups[g] == n if there are n counters active from group 'g'.
1963 unsigned *ActiveGroups
;
1966 * An array of bitsets, subscripted by group ID, then indexed by counter ID.
1968 * Checking whether counter 'c' in group 'g' is active can be done via:
1970 * BITSET_TEST(ActiveCounters[g], c)
1972 GLuint
**ActiveCounters
;
1976 union gl_perf_monitor_counter_value
1984 struct gl_perf_monitor_counter
1986 /** Human readable name for the counter. */
1990 * Data type of the counter. Valid values are FLOAT, UNSIGNED_INT,
1991 * UNSIGNED_INT64_AMD, and PERCENTAGE_AMD.
1995 /** Minimum counter value. */
1996 union gl_perf_monitor_counter_value Minimum
;
1998 /** Maximum counter value. */
1999 union gl_perf_monitor_counter_value Maximum
;
2003 struct gl_perf_monitor_group
2005 /** Human readable name for the group. */
2009 * Maximum number of counters in this group which can be active at the
2012 GLuint MaxActiveCounters
;
2014 /** Array of counters within this group. */
2015 const struct gl_perf_monitor_counter
*Counters
;
2021 * A query object instance as described in INTEL_performance_query.
2023 * NB: We want to keep this and the corresponding backend structure
2024 * relatively lean considering that applications may expect to
2025 * allocate enough objects to be able to query around all draw calls
2028 struct gl_perf_query_object
2030 GLuint Id
; /**< hash table ID/name */
2031 unsigned Used
:1; /**< has been used for 1 or more queries */
2032 unsigned Active
:1; /**< inside Begin/EndPerfQuery */
2033 unsigned Ready
:1; /**< result is ready? */
2038 * Context state for AMD_performance_monitor.
2040 struct gl_perf_monitor_state
2042 /** Array of performance monitor groups (indexed by group ID) */
2043 const struct gl_perf_monitor_group
*Groups
;
2046 /** The table of all performance monitors. */
2047 struct _mesa_HashTable
*Monitors
;
2052 * Context state for INTEL_performance_query.
2054 struct gl_perf_query_state
2056 struct _mesa_HashTable
*Objects
; /**< The table of all performance query objects */
2061 * A bindless sampler object.
2063 struct gl_bindless_sampler
2065 /** Texture unit (set by glUniform1()). */
2068 /** Whether this bindless sampler is bound to a unit. */
2071 /** Texture Target (TEXTURE_1D/2D/3D/etc_INDEX). */
2072 gl_texture_index target
;
2074 /** Pointer to the base of the data. */
2080 * A bindless image object.
2082 struct gl_bindless_image
2084 /** Image unit (set by glUniform1()). */
2087 /** Whether this bindless image is bound to a unit. */
2090 /** Access qualifier (GL_READ_WRITE, GL_READ_ONLY, GL_WRITE_ONLY) */
2093 /** Pointer to the base of the data. */
2099 * Names of the various vertex/fragment program register files, etc.
2101 * NOTE: first four tokens must fit into 2 bits (see t_vb_arbprogram.c)
2102 * All values should fit in a 4-bit field.
2104 * NOTE: PROGRAM_STATE_VAR, PROGRAM_CONSTANT, and PROGRAM_UNIFORM can all be
2105 * considered to be "uniform" variables since they can only be set outside
2106 * glBegin/End. They're also all stored in the same Parameters array.
2110 PROGRAM_TEMPORARY
, /**< machine->Temporary[] */
2111 PROGRAM_ARRAY
, /**< Arrays & Matrixes */
2112 PROGRAM_INPUT
, /**< machine->Inputs[] */
2113 PROGRAM_OUTPUT
, /**< machine->Outputs[] */
2114 PROGRAM_STATE_VAR
, /**< gl_program->Parameters[] */
2115 PROGRAM_CONSTANT
, /**< gl_program->Parameters[] */
2116 PROGRAM_UNIFORM
, /**< gl_program->Parameters[] */
2117 PROGRAM_WRITE_ONLY
, /**< A dummy, write-only register */
2118 PROGRAM_ADDRESS
, /**< machine->AddressReg */
2119 PROGRAM_SAMPLER
, /**< for shader samplers, compile-time only */
2120 PROGRAM_SYSTEM_VALUE
,/**< InstanceId, PrimitiveID, etc. */
2121 PROGRAM_UNDEFINED
, /**< Invalid/TBD value */
2122 PROGRAM_IMMEDIATE
, /**< Immediate value, used by TGSI */
2123 PROGRAM_BUFFER
, /**< for shader buffers, compile-time only */
2124 PROGRAM_MEMORY
, /**< for shared, global and local memory */
2125 PROGRAM_IMAGE
, /**< for shader images, compile-time only */
2126 PROGRAM_HW_ATOMIC
, /**< for hw atomic counters, compile-time only */
2132 * Base class for any kind of program object
2136 /** FIXME: This must be first until we split shader_info from nir_shader */
2137 struct shader_info info
;
2141 GLubyte
*String
; /**< Null-terminated program text */
2143 /** GL_VERTEX/FRAGMENT_PROGRAM_ARB, GL_GEOMETRY_PROGRAM_NV */
2145 GLenum16 Format
; /**< String encoding format */
2147 GLboolean _Used
; /**< Ever used for drawing? Used for debugging */
2149 struct nir_shader
*nir
;
2151 /* Saved and restored with metadata. Freed with ralloc. */
2152 void *driver_cache_blob
;
2153 size_t driver_cache_blob_size
;
2155 bool is_arb_asm
; /** Is this an ARB assembly-style program */
2157 /** Is this program written to on disk shader cache */
2158 bool program_written_to_cache
;
2160 /** Subset of OutputsWritten outputs written with non-zero index. */
2161 GLbitfield64 SecondaryOutputsWritten
;
2162 /** TEXTURE_x_BIT bitmask */
2163 GLbitfield TexturesUsed
[MAX_COMBINED_TEXTURE_IMAGE_UNITS
];
2164 /** Bitfield of which samplers are used */
2165 GLbitfield SamplersUsed
;
2166 /** Texture units used for shadow sampling. */
2167 GLbitfield ShadowSamplers
;
2168 /** Texture units used for samplerExternalOES */
2169 GLbitfield ExternalSamplersUsed
;
2171 /* Fragement shader only fields */
2172 GLboolean OriginUpperLeft
;
2173 GLboolean PixelCenterInteger
;
2175 /** Named parameters, constants, etc. from program text */
2176 struct gl_program_parameter_list
*Parameters
;
2178 /** Map from sampler unit to texture unit (set by glUniform1i()) */
2179 GLubyte SamplerUnits
[MAX_SAMPLERS
];
2181 /* FIXME: We should be able to make this struct a union. However some
2182 * drivers (i915/fragment_programs, swrast/prog_execute) mix the use of
2183 * these fields, we should fix this.
2186 /** Fields used by GLSL programs */
2188 /** Data shared by gl_program and gl_shader_program */
2189 struct gl_shader_program_data
*data
;
2191 struct gl_active_atomic_buffer
**AtomicBuffers
;
2193 /** Post-link transform feedback info. */
2194 struct gl_transform_feedback_info
*LinkedTransformFeedback
;
2197 * Number of types for subroutine uniforms.
2199 GLuint NumSubroutineUniformTypes
;
2202 * Subroutine uniform remap table
2203 * based on the program level uniform remap table.
2205 GLuint NumSubroutineUniforms
; /* non-sparse total */
2206 GLuint NumSubroutineUniformRemapTable
;
2207 struct gl_uniform_storage
**SubroutineUniformRemapTable
;
2210 * Num of subroutine functions for this stage and storage for them.
2212 GLuint NumSubroutineFunctions
;
2213 GLuint MaxSubroutineFunctionIndex
;
2214 struct gl_subroutine_function
*SubroutineFunctions
;
2217 * Map from image uniform index to image unit (set by glUniform1i())
2219 * An image uniform index is associated with each image uniform by
2220 * the linker. The image index associated with each uniform is
2221 * stored in the \c gl_uniform_storage::image field.
2223 GLubyte ImageUnits
[MAX_IMAGE_UNIFORMS
];
2226 * Access qualifier specified in the shader for each image uniform
2227 * index. Either \c GL_READ_ONLY, \c GL_WRITE_ONLY or \c
2230 * It may be different, though only more strict than the value of
2231 * \c gl_image_unit::Access for the corresponding image unit.
2233 GLenum16 ImageAccess
[MAX_IMAGE_UNIFORMS
];
2235 struct gl_uniform_block
**UniformBlocks
;
2236 struct gl_uniform_block
**ShaderStorageBlocks
;
2238 /** Which texture target is being sampled
2239 * (TEXTURE_1D/2D/3D/etc_INDEX)
2241 gl_texture_index SamplerTargets
[MAX_SAMPLERS
];
2244 * Number of samplers declared with the bindless_sampler layout
2245 * qualifier as specified by ARB_bindless_texture.
2247 GLuint NumBindlessSamplers
;
2248 GLboolean HasBoundBindlessSampler
;
2249 struct gl_bindless_sampler
*BindlessSamplers
;
2252 * Number of images declared with the bindless_image layout qualifier
2253 * as specified by ARB_bindless_texture.
2255 GLuint NumBindlessImages
;
2256 GLboolean HasBoundBindlessImage
;
2257 struct gl_bindless_image
*BindlessImages
;
2262 * A bitmask of gl_advanced_blend_mode values
2264 GLbitfield BlendSupport
;
2269 /** ARB assembly-style program fields */
2271 struct prog_instruction
*Instructions
;
2274 * Local parameters used by the program.
2276 * It's dynamically allocated because it is rarely used (just
2277 * assembly-style programs), and MAX_PROGRAM_LOCAL_PARAMS entries
2278 * once it's allocated.
2280 GLfloat (*LocalParams
)[4];
2282 /** Bitmask of which register files are read/written with indirect
2283 * addressing. Mask of (1 << PROGRAM_x) bits.
2285 GLbitfield IndirectRegisterFiles
;
2287 /** Logical counts */
2289 GLuint NumInstructions
;
2290 GLuint NumTemporaries
;
2291 GLuint NumParameters
;
2292 GLuint NumAttributes
;
2293 GLuint NumAddressRegs
;
2294 GLuint NumAluInstructions
;
2295 GLuint NumTexInstructions
;
2296 GLuint NumTexIndirections
;
2298 /** Native, actual h/w counts */
2300 GLuint NumNativeInstructions
;
2301 GLuint NumNativeTemporaries
;
2302 GLuint NumNativeParameters
;
2303 GLuint NumNativeAttributes
;
2304 GLuint NumNativeAddressRegs
;
2305 GLuint NumNativeAluInstructions
;
2306 GLuint NumNativeTexInstructions
;
2307 GLuint NumNativeTexIndirections
;
2310 /** Used by ARB assembly-style programs. Can only be true for vertex
2313 GLboolean IsPositionInvariant
;
2320 * State common to vertex and fragment programs.
2322 struct gl_program_state
2324 GLint ErrorPos
; /* GL_PROGRAM_ERROR_POSITION_ARB/NV */
2325 const char *ErrorString
; /* GL_PROGRAM_ERROR_STRING_ARB/NV */
2330 * Context state for vertex programs.
2332 struct gl_vertex_program_state
2334 GLboolean Enabled
; /**< User-set GL_VERTEX_PROGRAM_ARB/NV flag */
2335 GLboolean PointSizeEnabled
; /**< GL_VERTEX_PROGRAM_POINT_SIZE_ARB/NV */
2336 GLboolean TwoSideEnabled
; /**< GL_VERTEX_PROGRAM_TWO_SIDE_ARB/NV */
2337 /** Should fixed-function T&L be implemented with a vertex prog? */
2338 GLboolean _MaintainTnlProgram
;
2340 struct gl_program
*Current
; /**< User-bound vertex program */
2342 /** Currently enabled and valid vertex program (including internal
2343 * programs, user-defined vertex programs and GLSL vertex shaders).
2344 * This is the program we must use when rendering.
2346 struct gl_program
*_Current
;
2348 GLfloat Parameters
[MAX_PROGRAM_ENV_PARAMS
][4]; /**< Env params */
2350 /** Program to emulate fixed-function T&L (see above) */
2351 struct gl_program
*_TnlProgram
;
2353 /** Cache of fixed-function programs */
2354 struct gl_program_cache
*Cache
;
2356 GLboolean _Overriden
;
2360 * Context state for tessellation control programs.
2362 struct gl_tess_ctrl_program_state
2364 /** Currently bound and valid shader. */
2365 struct gl_program
*_Current
;
2367 GLint patch_vertices
;
2368 GLfloat patch_default_outer_level
[4];
2369 GLfloat patch_default_inner_level
[2];
2373 * Context state for tessellation evaluation programs.
2375 struct gl_tess_eval_program_state
2377 /** Currently bound and valid shader. */
2378 struct gl_program
*_Current
;
2382 * Context state for geometry programs.
2384 struct gl_geometry_program_state
2387 * Currently enabled and valid program (including internal programs
2388 * and compiled shader programs).
2390 struct gl_program
*_Current
;
2394 * Context state for fragment programs.
2396 struct gl_fragment_program_state
2398 GLboolean Enabled
; /**< User-set fragment program enable flag */
2399 /** Should fixed-function texturing be implemented with a fragment prog? */
2400 GLboolean _MaintainTexEnvProgram
;
2402 struct gl_program
*Current
; /**< User-bound fragment program */
2405 * Currently enabled and valid fragment program (including internal
2406 * programs, user-defined fragment programs and GLSL fragment shaders).
2407 * This is the program we must use when rendering.
2409 struct gl_program
*_Current
;
2411 GLfloat Parameters
[MAX_PROGRAM_ENV_PARAMS
][4]; /**< Env params */
2413 /** Program to emulate fixed-function texture env/combine (see above) */
2414 struct gl_program
*_TexEnvProgram
;
2416 /** Cache of fixed-function programs */
2417 struct gl_program_cache
*Cache
;
2422 * Context state for compute programs.
2424 struct gl_compute_program_state
2426 /** Currently enabled and valid program (including internal programs
2427 * and compiled shader programs).
2429 struct gl_program
*_Current
;
2434 * ATI_fragment_shader runtime state
2437 struct atifs_instruction
;
2438 struct atifs_setupinst
;
2441 * ATI fragment shader
2443 struct ati_fragment_shader
2447 struct atifs_instruction
*Instructions
[2];
2448 struct atifs_setupinst
*SetupInst
[2];
2449 GLfloat Constants
[8][4];
2450 GLbitfield LocalConstDef
; /**< Indicates which constants have been set */
2451 GLubyte numArithInstr
[2];
2452 GLubyte regsAssigned
[2];
2453 GLubyte NumPasses
; /**< 1 or 2 */
2455 * Current compile stage: 0 setup pass1, 1 arith pass1,
2456 * 2 setup pass2, 3 arith pass2.
2459 GLubyte last_optype
;
2460 GLboolean interpinp1
;
2463 * Array of 2 bit values for each tex unit to remember whether
2464 * STR or STQ swizzle was used
2467 struct gl_program
*Program
;
2471 * Context state for GL_ATI_fragment_shader
2473 struct gl_ati_fragment_shader_state
2476 GLboolean Compiling
;
2477 GLfloat GlobalConstants
[8][4];
2478 struct ati_fragment_shader
*Current
;
2482 * Shader subroutine function definition
2484 struct gl_subroutine_function
2488 int num_compat_types
;
2489 const struct glsl_type
**types
;
2493 * Shader information needed by both gl_shader and gl_linked shader.
2495 struct gl_shader_info
2498 * Tessellation Control shader state from layout qualifiers.
2502 * 0 - vertices not declared in shader, or
2503 * 1 .. GL_MAX_PATCH_VERTICES
2509 * Tessellation Evaluation shader state from layout qualifiers.
2513 * GL_TRIANGLES, GL_QUADS, GL_ISOLINES or PRIM_UNKNOWN if it's not set
2516 GLenum16 PrimitiveMode
;
2518 enum gl_tess_spacing Spacing
;
2521 * GL_CW, GL_CCW, or 0 if it's not set in this shader.
2523 GLenum16 VertexOrder
;
2525 * 1, 0, or -1 if it's not set in this shader.
2531 * Geometry shader state from GLSL 1.50 layout qualifiers.
2536 * 0 - Invocations count not declared in shader, or
2537 * 1 .. MAX_GEOMETRY_SHADER_INVOCATIONS
2541 * GL_POINTS, GL_LINES, GL_LINES_ADJACENCY, GL_TRIANGLES, or
2542 * GL_TRIANGLES_ADJACENCY, or PRIM_UNKNOWN if it's not set in this
2547 * GL_POINTS, GL_LINE_STRIP or GL_TRIANGLE_STRIP, or PRIM_UNKNOWN if
2548 * it's not set in this shader.
2550 GLenum16 OutputType
;
2554 * Compute shader state from ARB_compute_shader and
2555 * ARB_compute_variable_group_size layout qualifiers.
2559 * Size specified using local_size_{x,y,z}, or all 0's to indicate that
2560 * it's not set in this shader.
2562 unsigned LocalSize
[3];
2565 * Whether a variable work group size has been specified as defined by
2566 * ARB_compute_variable_group_size.
2568 bool LocalSizeVariable
;
2573 * A linked GLSL shader object.
2575 struct gl_linked_shader
2577 gl_shader_stage Stage
;
2580 unsigned SourceChecksum
;
2583 struct gl_program
*Program
; /**< Post-compile assembly code */
2586 * \name Sampler tracking
2588 * \note Each of these fields is only set post-linking.
2591 GLbitfield shadow_samplers
; /**< Samplers used for shadow sampling. */
2595 * Number of default uniform block components used by this shader.
2597 * This field is only set post-linking.
2599 unsigned num_uniform_components
;
2602 * Number of combined uniform components used by this shader.
2604 * This field is only set post-linking. It is the sum of the uniform block
2605 * sizes divided by sizeof(float), and num_uniform_compoennts.
2607 unsigned num_combined_uniform_components
;
2609 struct exec_list
*ir
;
2610 struct exec_list
*packed_varyings
;
2611 struct exec_list
*fragdata_arrays
;
2612 struct glsl_symbol_table
*symbols
;
2617 * Compile status enum. COMPILE_SKIPPED is used to indicate the compile
2618 * was skipped due to the shader matching one that's been seen before by
2619 * the on-disk cache.
2621 enum gl_compile_status
2623 COMPILE_FAILURE
= 0,
2630 * A GLSL shader object.
2634 /** GL_FRAGMENT_SHADER || GL_VERTEX_SHADER || GL_GEOMETRY_SHADER_ARB ||
2635 * GL_TESS_CONTROL_SHADER || GL_TESS_EVALUATION_SHADER.
2636 * Must be the first field.
2639 gl_shader_stage Stage
;
2640 GLuint Name
; /**< AKA the handle */
2641 GLint RefCount
; /**< Reference count */
2642 GLchar
*Label
; /**< GL_KHR_debug */
2643 unsigned char sha1
[20]; /**< SHA1 hash of pre-processed source */
2644 GLboolean DeletePending
;
2645 bool IsES
; /**< True if this shader uses GLSL ES */
2647 enum gl_compile_status CompileStatus
;
2650 unsigned SourceChecksum
; /**< for debug/logging purposes */
2652 const GLchar
*Source
; /**< Source code string */
2654 const GLchar
*FallbackSource
; /**< Fallback string used by on-disk cache*/
2658 unsigned Version
; /**< GLSL version used for linking */
2661 * A bitmask of gl_advanced_blend_mode values
2663 GLbitfield BlendSupport
;
2665 struct exec_list
*ir
;
2666 struct glsl_symbol_table
*symbols
;
2669 * Whether early fragment tests are enabled as defined by
2670 * ARB_shader_image_load_store.
2672 bool EarlyFragmentTests
;
2674 bool ARB_fragment_coord_conventions_enable
;
2676 bool redeclares_gl_fragcoord
;
2677 bool uses_gl_fragcoord
;
2679 bool PostDepthCoverage
;
2683 * Fragment shader state from GLSL 1.50 layout qualifiers.
2685 bool origin_upper_left
;
2686 bool pixel_center_integer
;
2689 * Whether bindless_sampler/bindless_image, and respectively
2690 * bound_sampler/bound_image are declared at global scope as defined by
2691 * ARB_bindless_texture.
2693 bool bindless_sampler
;
2694 bool bindless_image
;
2698 /** Global xfb_stride out qualifier if any */
2699 GLuint TransformFeedbackBufferStride
[MAX_FEEDBACK_BUFFERS
];
2701 struct gl_shader_info info
;
2703 /* ARB_gl_spirv related data */
2704 struct gl_shader_spirv_data
*spirv_data
;
2708 struct gl_uniform_buffer_variable
2713 * Name of the uniform as seen by glGetUniformIndices.
2715 * glGetUniformIndices requires that the block instance index \b not be
2716 * present in the name of queried uniforms.
2719 * \c gl_uniform_buffer_variable::IndexName and
2720 * \c gl_uniform_buffer_variable::Name may point to identical storage.
2724 const struct glsl_type
*Type
;
2725 unsigned int Offset
;
2730 struct gl_uniform_block
2732 /** Declared name of the uniform block */
2735 /** Array of supplemental information about UBO ir_variables. */
2736 struct gl_uniform_buffer_variable
*Uniforms
;
2740 * Index (GL_UNIFORM_BLOCK_BINDING) into ctx->UniformBufferBindings[] to use
2741 * with glBindBufferBase to bind a buffer object to this uniform block.
2746 * Minimum size (in bytes) of a buffer object to back this uniform buffer
2747 * (GL_UNIFORM_BLOCK_DATA_SIZE).
2749 GLuint UniformBufferSize
;
2751 /** Stages that reference this block */
2755 * Linearized array index for uniform block instance arrays
2757 * Given a uniform block instance array declared with size
2758 * blk[s_0][s_1]..[s_m], the block referenced by blk[i_0][i_1]..[i_m] will
2759 * have the linearized array index
2762 * i_m + ∑ i_j * ∏ s_k
2765 * For a uniform block instance that is not an array, this is always 0.
2767 uint8_t linearized_array_index
;
2770 * Layout specified in the shader
2772 * This isn't accessible through the API, but it is used while
2773 * cross-validating uniform blocks.
2775 enum glsl_interface_packing _Packing
;
2776 GLboolean _RowMajor
;
2780 * Structure that represents a reference to an atomic buffer from some
2783 struct gl_active_atomic_buffer
2785 /** Uniform indices of the atomic counters declared within it. */
2789 /** Binding point index associated with it. */
2792 /** Minimum reasonable size it is expected to have. */
2795 /** Shader stages making use of it. */
2796 GLboolean StageReferences
[MESA_SHADER_STAGES
];
2800 * Data container for shader queries. This holds only the minimal
2801 * amount of required information for resource queries to work.
2803 struct gl_shader_variable
2806 * Declared type of the variable
2808 const struct glsl_type
*type
;
2811 * If the variable is in an interface block, this is the type of the block.
2813 const struct glsl_type
*interface_type
;
2816 * For variables inside structs (possibly recursively), this is the
2817 * outermost struct type.
2819 const struct glsl_type
*outermost_struct_type
;
2822 * Declared name of the variable
2827 * Storage location of the base of this variable
2829 * The precise meaning of this field depends on the nature of the variable.
2831 * - Vertex shader input: one of the values from \c gl_vert_attrib.
2832 * - Vertex shader output: one of the values from \c gl_varying_slot.
2833 * - Geometry shader input: one of the values from \c gl_varying_slot.
2834 * - Geometry shader output: one of the values from \c gl_varying_slot.
2835 * - Fragment shader input: one of the values from \c gl_varying_slot.
2836 * - Fragment shader output: one of the values from \c gl_frag_result.
2837 * - Uniforms: Per-stage uniform slot number for default uniform block.
2838 * - Uniforms: Index within the uniform block definition for UBO members.
2839 * - Non-UBO Uniforms: explicit location until linking then reused to
2840 * store uniform slot number.
2841 * - Other: This field is not currently used.
2843 * If the variable is a uniform, shader input, or shader output, and the
2844 * slot has not been assigned, the value will be -1.
2849 * Specifies the first component the variable is stored in as per
2850 * ARB_enhanced_layouts.
2852 unsigned component
:2;
2855 * Output index for dual source blending.
2858 * The GLSL spec only allows the values 0 or 1 for the index in \b dual
2864 * Specifies whether a shader input/output is per-patch in tessellation
2870 * Storage class of the variable.
2872 * \sa (n)ir_variable_mode
2877 * Interpolation mode for shader inputs / outputs
2879 * \sa glsl_interp_mode
2881 unsigned interpolation
:2;
2884 * Was the location explicitly set in the shader?
2886 * If the location is explicitly set in the shader, it \b cannot be changed
2887 * by the linker or by the API (e.g., calls to \c glBindAttribLocation have
2890 unsigned explicit_location
:1;
2893 * Precision qualifier.
2895 unsigned precision
:2;
2899 * Active resource in a gl_shader_program
2901 struct gl_program_resource
2903 GLenum16 Type
; /** Program interface type. */
2904 const void *Data
; /** Pointer to resource associated data structure. */
2905 uint8_t StageReferences
; /** Bitmask of shader stage references. */
2909 * Link status enum. LINKING_SKIPPED is used to indicate linking
2910 * was skipped due to the shader being loaded from the on-disk cache.
2914 LINKING_FAILURE
= 0,
2920 * A data structure to be shared by gl_shader_program and gl_program.
2922 struct gl_shader_program_data
2924 GLint RefCount
; /**< Reference count */
2926 /** SHA1 hash of linked shader program */
2927 unsigned char sha1
[20];
2929 unsigned NumUniformStorage
;
2930 unsigned NumHiddenUniforms
;
2931 struct gl_uniform_storage
*UniformStorage
;
2933 unsigned NumUniformBlocks
;
2934 unsigned NumShaderStorageBlocks
;
2936 struct gl_uniform_block
*UniformBlocks
;
2937 struct gl_uniform_block
*ShaderStorageBlocks
;
2939 struct gl_active_atomic_buffer
*AtomicBuffers
;
2940 unsigned NumAtomicBuffers
;
2942 /* Shader cache variables used during restore */
2943 unsigned NumUniformDataSlots
;
2944 union gl_constant_value
*UniformDataSlots
;
2946 /* Used to hold initial uniform values for program binary restores.
2948 * From the ARB_get_program_binary spec:
2950 * "A successful call to ProgramBinary will reset all uniform
2951 * variables to their initial values. The initial value is either
2952 * the value of the variable's initializer as specified in the
2953 * original shader source, or 0 if no initializer was present.
2955 union gl_constant_value
*UniformDataDefaults
;
2957 GLboolean Validated
;
2959 /** List of all active resources after linking. */
2960 struct gl_program_resource
*ProgramResourceList
;
2961 unsigned NumProgramResourceList
;
2963 enum gl_link_status LinkStatus
; /**< GL_LINK_STATUS */
2966 unsigned Version
; /**< GLSL version used for linking */
2968 /* Mask of stages this program was linked against */
2969 unsigned linked_stages
;
2973 * A GLSL program object.
2974 * Basically a linked collection of vertex and fragment shaders.
2976 struct gl_shader_program
2978 GLenum16 Type
; /**< Always GL_SHADER_PROGRAM (internal token) */
2979 GLuint Name
; /**< aka handle or ID */
2980 GLchar
*Label
; /**< GL_KHR_debug */
2981 GLint RefCount
; /**< Reference count */
2982 GLboolean DeletePending
;
2985 * Is the application intending to glGetProgramBinary this program?
2987 GLboolean BinaryRetreivableHint
;
2990 * Indicates whether program can be bound for individual pipeline stages
2991 * using UseProgramStages after it is next linked.
2993 GLboolean SeparateShader
;
2995 GLuint NumShaders
; /**< number of attached shaders */
2996 struct gl_shader
**Shaders
; /**< List of attached the shaders */
2999 * User-defined attribute bindings
3001 * These are set via \c glBindAttribLocation and are used to direct the
3002 * GLSL linker. These are \b not the values used in the compiled shader,
3003 * and they are \b not the values returned by \c glGetAttribLocation.
3005 struct string_to_uint_map
*AttributeBindings
;
3008 * User-defined fragment data bindings
3010 * These are set via \c glBindFragDataLocation and are used to direct the
3011 * GLSL linker. These are \b not the values used in the compiled shader,
3012 * and they are \b not the values returned by \c glGetFragDataLocation.
3014 struct string_to_uint_map
*FragDataBindings
;
3015 struct string_to_uint_map
*FragDataIndexBindings
;
3018 * Transform feedback varyings last specified by
3019 * glTransformFeedbackVaryings().
3021 * For the current set of transform feedback varyings used for transform
3022 * feedback output, see LinkedTransformFeedback.
3025 GLenum16 BufferMode
;
3026 /** Global xfb_stride out qualifier if any */
3027 GLuint BufferStride
[MAX_FEEDBACK_BUFFERS
];
3029 GLchar
**VaryingNames
; /**< Array [NumVarying] of char * */
3030 } TransformFeedback
;
3032 struct gl_program
*last_vert_prog
;
3034 /** Post-link gl_FragDepth layout for ARB_conservative_depth. */
3035 enum gl_frag_depth_layout FragDepthLayout
;
3038 * Geometry shader state - copied into gl_program by
3039 * _mesa_copy_linked_program_data().
3044 bool UsesEndPrimitive
;
3049 * Compute shader state - copied into gl_program by
3050 * _mesa_copy_linked_program_data().
3054 * Size of shared variables accessed by the compute shader.
3056 unsigned SharedSize
;
3059 /** Data shared by gl_program and gl_shader_program */
3060 struct gl_shader_program_data
*data
;
3063 * Mapping from GL uniform locations returned by \c glUniformLocation to
3064 * UniformStorage entries. Arrays will have multiple contiguous slots
3065 * in the UniformRemapTable, all pointing to the same UniformStorage entry.
3067 unsigned NumUniformRemapTable
;
3068 struct gl_uniform_storage
**UniformRemapTable
;
3071 * Sometimes there are empty slots left over in UniformRemapTable after we
3072 * allocate slots to explicit locations. This list stores the blocks of
3073 * continuous empty slots inside UniformRemapTable.
3075 struct exec_list EmptyUniformLocations
;
3078 * Total number of explicit uniform location including inactive uniforms.
3080 unsigned NumExplicitUniformLocations
;
3083 * Map of active uniform names to locations
3085 * Maps any active uniform that is not an array element to a location.
3086 * Each active uniform, including individual structure members will appear
3087 * in this map. This roughly corresponds to the set of names that would be
3088 * enumerated by \c glGetActiveUniform.
3090 struct string_to_uint_map
*UniformHash
;
3092 GLboolean SamplersValidated
; /**< Samplers validated against texture units? */
3094 bool IsES
; /**< True if this program uses GLSL ES */
3097 * Per-stage shaders resulting from the first stage of linking.
3099 * Set of linked shaders for this program. The array is accessed using the
3100 * \c MESA_SHADER_* defines. Entries for non-existent stages will be
3103 struct gl_linked_shader
*_LinkedShaders
[MESA_SHADER_STAGES
];
3106 * True if any of the fragment shaders attached to this program use:
3107 * #extension ARB_fragment_coord_conventions: enable
3109 GLboolean ARB_fragment_coord_conventions_enable
;
3113 #define GLSL_DUMP 0x1 /**< Dump shaders to stdout */
3114 #define GLSL_LOG 0x2 /**< Write shaders to files */
3115 #define GLSL_UNIFORMS 0x4 /**< Print glUniform calls */
3116 #define GLSL_NOP_VERT 0x8 /**< Force no-op vertex shaders */
3117 #define GLSL_NOP_FRAG 0x10 /**< Force no-op fragment shaders */
3118 #define GLSL_USE_PROG 0x20 /**< Log glUseProgram calls */
3119 #define GLSL_REPORT_ERRORS 0x40 /**< Print compilation errors */
3120 #define GLSL_DUMP_ON_ERROR 0x80 /**< Dump shaders to stderr on compile error */
3121 #define GLSL_CACHE_INFO 0x100 /**< Print debug information about shader cache */
3122 #define GLSL_CACHE_FALLBACK 0x200 /**< Force shader cache fallback paths */
3126 * Context state for GLSL vertex/fragment shaders.
3127 * Extended to support pipeline object
3129 struct gl_pipeline_object
3131 /** Name of the pipeline object as received from glGenProgramPipelines.
3132 * It would be 0 for shaders without separate shader objects.
3138 GLchar
*Label
; /**< GL_KHR_debug */
3141 * Programs used for rendering
3143 * There is a separate program set for each shader stage.
3145 struct gl_program
*CurrentProgram
[MESA_SHADER_STAGES
];
3147 struct gl_shader_program
*ReferencedPrograms
[MESA_SHADER_STAGES
];
3150 * Program used by glUniform calls.
3152 * Explicitly set by \c glUseProgram and \c glActiveProgramEXT.
3154 struct gl_shader_program
*ActiveProgram
;
3156 GLbitfield Flags
; /**< Mask of GLSL_x flags */
3157 GLboolean EverBound
; /**< Has the pipeline object been created */
3158 GLboolean Validated
; /**< Pipeline Validation status */
3164 * Context state for GLSL pipeline shaders.
3166 struct gl_pipeline_shader_state
3168 /** Currently bound pipeline object. See _mesa_BindProgramPipeline() */
3169 struct gl_pipeline_object
*Current
;
3171 /** Default Object to ensure that _Shader is never NULL */
3172 struct gl_pipeline_object
*Default
;
3174 /** Pipeline objects */
3175 struct _mesa_HashTable
*Objects
;
3179 * Compiler options for a single GLSL shaders type
3181 struct gl_shader_compiler_options
3183 /** Driver-selectable options: */
3184 GLboolean EmitNoLoops
;
3185 GLboolean EmitNoCont
; /**< Emit CONT opcode? */
3186 GLboolean EmitNoMainReturn
; /**< Emit CONT/RET opcodes? */
3187 GLboolean EmitNoPow
; /**< Emit POW opcodes? */
3188 GLboolean EmitNoSat
; /**< Emit SAT opcodes? */
3189 GLboolean LowerCombinedClipCullDistance
; /** Lower gl_ClipDistance and
3190 * gl_CullDistance together from
3191 * float[8] to vec4[2]
3195 * \name Forms of indirect addressing the driver cannot do.
3198 GLboolean EmitNoIndirectInput
; /**< No indirect addressing of inputs */
3199 GLboolean EmitNoIndirectOutput
; /**< No indirect addressing of outputs */
3200 GLboolean EmitNoIndirectTemp
; /**< No indirect addressing of temps */
3201 GLboolean EmitNoIndirectUniform
; /**< No indirect addressing of constants */
3202 GLboolean EmitNoIndirectSampler
; /**< No indirect addressing of samplers */
3205 GLuint MaxIfDepth
; /**< Maximum nested IF blocks */
3206 GLuint MaxUnrollIterations
;
3209 * Optimize code for array of structures backends.
3211 * This is a proxy for:
3212 * - preferring DP4 instructions (rather than MUL/MAD) for
3213 * matrix * vector operations, such as position transformation.
3215 GLboolean OptimizeForAOS
;
3217 /** Lower UBO and SSBO access to intrinsics. */
3218 GLboolean LowerBufferInterfaceBlocks
;
3220 /** Clamp UBO and SSBO block indices so they don't go out-of-bounds. */
3221 GLboolean ClampBlockIndicesToArrayBounds
;
3223 const struct nir_shader_compiler_options
*NirOptions
;
3228 * Occlusion/timer query object.
3230 struct gl_query_object
3232 GLenum Target
; /**< The query target, when active */
3233 GLuint Id
; /**< hash table ID/name */
3234 GLchar
*Label
; /**< GL_KHR_debug */
3235 GLuint64EXT Result
; /**< the counter */
3236 GLboolean Active
; /**< inside Begin/EndQuery */
3237 GLboolean Ready
; /**< result is ready? */
3238 GLboolean EverBound
;/**< has query object ever been bound */
3239 GLuint Stream
; /**< The stream */
3244 * Context state for query objects.
3246 struct gl_query_state
3248 struct _mesa_HashTable
*QueryObjects
;
3249 struct gl_query_object
*CurrentOcclusionObject
; /* GL_ARB_occlusion_query */
3250 struct gl_query_object
*CurrentTimerObject
; /* GL_EXT_timer_query */
3252 /** GL_NV_conditional_render */
3253 struct gl_query_object
*CondRenderQuery
;
3255 /** GL_EXT_transform_feedback */
3256 struct gl_query_object
*PrimitivesGenerated
[MAX_VERTEX_STREAMS
];
3257 struct gl_query_object
*PrimitivesWritten
[MAX_VERTEX_STREAMS
];
3259 /** GL_ARB_transform_feedback_overflow_query */
3260 struct gl_query_object
*TransformFeedbackOverflow
[MAX_VERTEX_STREAMS
];
3261 struct gl_query_object
*TransformFeedbackOverflowAny
;
3263 /** GL_ARB_timer_query */
3264 struct gl_query_object
*TimeElapsed
;
3266 /** GL_ARB_pipeline_statistics_query */
3267 struct gl_query_object
*pipeline_stats
[MAX_PIPELINE_STATISTICS
];
3269 GLenum16 CondRenderMode
;
3273 /** Sync object state */
3274 struct gl_sync_object
3276 GLuint Name
; /**< Fence name */
3277 GLint RefCount
; /**< Reference count */
3278 GLchar
*Label
; /**< GL_KHR_debug */
3279 GLboolean DeletePending
; /**< Object was deleted while there were still
3280 * live references (e.g., sync not yet finished)
3282 GLenum16 SyncCondition
;
3283 GLbitfield Flags
; /**< Flags passed to glFenceSync */
3284 GLuint StatusFlag
:1; /**< Has the sync object been signaled? */
3289 * State which can be shared by multiple contexts:
3291 struct gl_shared_state
3293 simple_mtx_t Mutex
; /**< for thread safety */
3294 GLint RefCount
; /**< Reference count */
3295 struct _mesa_HashTable
*DisplayList
; /**< Display lists hash table */
3296 struct _mesa_HashTable
*BitmapAtlas
; /**< For optimized glBitmap text */
3297 struct _mesa_HashTable
*TexObjects
; /**< Texture objects hash table */
3299 /** Default texture objects (shared by all texture units) */
3300 struct gl_texture_object
*DefaultTex
[NUM_TEXTURE_TARGETS
];
3302 /** Fallback texture used when a bound texture is incomplete */
3303 struct gl_texture_object
*FallbackTex
[NUM_TEXTURE_TARGETS
];
3306 * \name Thread safety and statechange notification for texture
3309 * \todo Improve the granularity of locking.
3312 mtx_t TexMutex
; /**< texobj thread safety */
3313 GLuint TextureStateStamp
; /**< state notification for shared tex */
3316 /** Default buffer object for vertex arrays that aren't in VBOs */
3317 struct gl_buffer_object
*NullBufferObj
;
3320 * \name Vertex/geometry/fragment programs
3323 struct _mesa_HashTable
*Programs
; /**< All vertex/fragment programs */
3324 struct gl_program
*DefaultVertexProgram
;
3325 struct gl_program
*DefaultFragmentProgram
;
3328 /* GL_ATI_fragment_shader */
3329 struct _mesa_HashTable
*ATIShaders
;
3330 struct ati_fragment_shader
*DefaultFragmentShader
;
3332 struct _mesa_HashTable
*BufferObjects
;
3334 /** Table of both gl_shader and gl_shader_program objects */
3335 struct _mesa_HashTable
*ShaderObjects
;
3337 /* GL_EXT_framebuffer_object */
3338 struct _mesa_HashTable
*RenderBuffers
;
3339 struct _mesa_HashTable
*FrameBuffers
;
3342 struct set
*SyncObjects
;
3344 /** GL_ARB_sampler_objects */
3345 struct _mesa_HashTable
*SamplerObjects
;
3347 /* GL_ARB_bindless_texture */
3348 struct hash_table_u64
*TextureHandles
;
3349 struct hash_table_u64
*ImageHandles
;
3350 mtx_t HandlesMutex
; /**< For texture/image handles safety */
3353 * Some context in this share group was affected by a GPU reset
3355 * On the next call to \c glGetGraphicsResetStatus, contexts that have not
3356 * been affected by a GPU reset must also return
3357 * \c GL_INNOCENT_CONTEXT_RESET_ARB.
3359 * Once this field becomes true, it is never reset to false.
3361 bool ShareGroupReset
;
3363 /** EXT_external_objects */
3364 struct _mesa_HashTable
*MemoryObjects
;
3366 /** EXT_semaphore */
3367 struct _mesa_HashTable
*SemaphoreObjects
;
3370 * Some context in this share group was affected by a disjoint
3371 * operation. This operation can be anything that has effects on
3372 * values of timer queries in such manner that they become invalid for
3373 * performance metrics. As example gpu reset, counter overflow or gpu
3374 * frequency changes.
3376 bool DisjointOperation
;
3382 * Renderbuffers represent drawing surfaces such as color, depth and/or
3383 * stencil. A framebuffer object has a set of renderbuffers.
3384 * Drivers will typically derive subclasses of this type.
3386 struct gl_renderbuffer
3388 simple_mtx_t Mutex
; /**< for thread safety */
3389 GLuint ClassID
; /**< Useful for drivers */
3391 GLchar
*Label
; /**< GL_KHR_debug */
3393 GLuint Width
, Height
;
3395 GLboolean Purgeable
; /**< Is the buffer purgeable under memory pressure? */
3396 GLboolean AttachedAnytime
; /**< TRUE if it was attached to a framebuffer */
3398 * True for renderbuffers that wrap textures, giving the driver a chance to
3399 * flush render caches through the FinishRenderTexture hook.
3401 * Drivers may also set this on renderbuffers other than those generated by
3402 * glFramebufferTexture(), though it means FinishRenderTexture() would be
3403 * called without a rb->TexImage.
3405 GLboolean NeedsFinishRenderTexture
;
3406 GLubyte NumSamples
; /**< zero means not multisampled */
3407 GLenum16 InternalFormat
; /**< The user-specified format */
3408 GLenum16 _BaseFormat
; /**< Either GL_RGB, GL_RGBA, GL_DEPTH_COMPONENT or
3409 GL_STENCIL_INDEX. */
3410 mesa_format Format
; /**< The actual renderbuffer memory format */
3412 * Pointer to the texture image if this renderbuffer wraps a texture,
3415 * Note that the reference on the gl_texture_object containing this
3416 * TexImage is held by the gl_renderbuffer_attachment.
3418 struct gl_texture_image
*TexImage
;
3420 /** Delete this renderbuffer */
3421 void (*Delete
)(struct gl_context
*ctx
, struct gl_renderbuffer
*rb
);
3423 /** Allocate new storage for this renderbuffer */
3424 GLboolean (*AllocStorage
)(struct gl_context
*ctx
,
3425 struct gl_renderbuffer
*rb
,
3426 GLenum internalFormat
,
3427 GLuint width
, GLuint height
);
3432 * A renderbuffer attachment points to either a texture object (and specifies
3433 * a mipmap level, cube face or 3D texture slice) or points to a renderbuffer.
3435 struct gl_renderbuffer_attachment
3437 GLenum16 Type
; /**< \c GL_NONE or \c GL_TEXTURE or \c GL_RENDERBUFFER_EXT */
3441 * If \c Type is \c GL_RENDERBUFFER_EXT, this stores a pointer to the
3442 * application supplied renderbuffer object.
3444 struct gl_renderbuffer
*Renderbuffer
;
3447 * If \c Type is \c GL_TEXTURE, this stores a pointer to the application
3448 * supplied texture object.
3450 struct gl_texture_object
*Texture
;
3451 GLuint TextureLevel
; /**< Attached mipmap level. */
3452 GLuint CubeMapFace
; /**< 0 .. 5, for cube map textures. */
3453 GLuint Zoffset
; /**< Slice for 3D textures, or layer for both 1D
3454 * and 2D array textures */
3460 * A framebuffer is a collection of renderbuffers (color, depth, stencil, etc).
3461 * In C++ terms, think of this as a base class from which device drivers
3462 * will make derived classes.
3464 struct gl_framebuffer
3466 simple_mtx_t Mutex
; /**< for thread safety */
3468 * If zero, this is a window system framebuffer. If non-zero, this
3469 * is a FBO framebuffer; note that for some devices (i.e. those with
3470 * a natural pixel coordinate system for FBOs that differs from the
3471 * OpenGL/Mesa coordinate system), this means that the viewport,
3472 * polygon face orientation, and polygon stipple will have to be inverted.
3477 GLchar
*Label
; /**< GL_KHR_debug */
3479 GLboolean DeletePending
;
3482 * The framebuffer's visual. Immutable if this is a window system buffer.
3483 * Computed from attachments if user-made FBO.
3485 struct gl_config Visual
;
3488 * Size of frame buffer in pixels. If there are no attachments, then both
3491 GLuint Width
, Height
;
3494 * In the case that the framebuffer has no attachment (i.e.
3495 * GL_ARB_framebuffer_no_attachments) then the geometry of
3496 * the framebuffer is specified by the default values.
3499 GLuint Width
, Height
, Layers
, NumSamples
;
3500 GLboolean FixedSampleLocations
;
3501 /* Derived from NumSamples by the driver so that it can choose a valid
3502 * value for the hardware.
3507 /** \name Drawing bounds (Intersection of buffer size and scissor box)
3508 * The drawing region is given by [_Xmin, _Xmax) x [_Ymin, _Ymax),
3509 * (inclusive for _Xmin and _Ymin while exclusive for _Xmax and _Ymax)
3516 /** \name Derived Z buffer stuff */
3518 GLuint _DepthMax
; /**< Max depth buffer value */
3519 GLfloat _DepthMaxF
; /**< Float max depth buffer value */
3520 GLfloat _MRD
; /**< minimum resolvable difference in Z values */
3523 /** One of the GL_FRAMEBUFFER_(IN)COMPLETE_* tokens */
3526 /** Whether one of Attachment has Type != GL_NONE
3527 * NOTE: the values for Width and Height are set to 0 in case of having
3528 * no attachments, a backend driver supporting the extension
3529 * GL_ARB_framebuffer_no_attachments must check for the flag _HasAttachments
3530 * and if GL_FALSE, must then use the values in DefaultGeometry to initialize
3531 * its viewport, scissor and so on (in particular _Xmin, _Xmax, _Ymin and
3532 * _Ymax do NOT take into account _HasAttachments being false). To get the
3533 * geometry of the framebuffer, the helper functions
3534 * _mesa_geometric_width(),
3535 * _mesa_geometric_height(),
3536 * _mesa_geometric_samples() and
3537 * _mesa_geometric_layers()
3538 * are available that check _HasAttachments.
3540 bool _HasAttachments
;
3542 GLbitfield _IntegerBuffers
; /**< Which color buffers are integer valued */
3544 /* ARB_color_buffer_float */
3545 GLboolean _AllColorBuffersFixedPoint
; /* no integer, no float */
3546 GLboolean _HasSNormOrFloatColorBuffer
;
3549 * The maximum number of layers in the framebuffer, or 0 if the framebuffer
3550 * is not layered. For cube maps and cube map arrays, each cube face
3551 * counts as a layer. As the case for Width, Height a backend driver
3552 * supporting GL_ARB_framebuffer_no_attachments must use DefaultGeometry
3553 * in the case that _HasAttachments is false
3555 GLuint MaxNumLayers
;
3557 /** Array of all renderbuffer attachments, indexed by BUFFER_* tokens. */
3558 struct gl_renderbuffer_attachment Attachment
[BUFFER_COUNT
];
3560 /* In unextended OpenGL these vars are part of the GL_COLOR_BUFFER
3561 * attribute group and GL_PIXEL attribute group, respectively.
3563 GLenum16 ColorDrawBuffer
[MAX_DRAW_BUFFERS
];
3564 GLenum16 ColorReadBuffer
;
3566 /** Computed from ColorDraw/ReadBuffer above */
3567 GLuint _NumColorDrawBuffers
;
3568 gl_buffer_index _ColorDrawBufferIndexes
[MAX_DRAW_BUFFERS
];
3569 gl_buffer_index _ColorReadBufferIndex
;
3570 struct gl_renderbuffer
*_ColorDrawBuffers
[MAX_DRAW_BUFFERS
];
3571 struct gl_renderbuffer
*_ColorReadBuffer
;
3573 /** Delete this framebuffer */
3574 void (*Delete
)(struct gl_framebuffer
*fb
);
3579 * Precision info for shader datatypes. See glGetShaderPrecisionFormat().
3583 GLushort RangeMin
; /**< min value exponent */
3584 GLushort RangeMax
; /**< max value exponent */
3585 GLushort Precision
; /**< number of mantissa bits */
3590 * Limits for vertex, geometry and fragment programs/shaders.
3592 struct gl_program_constants
3594 /* logical limits */
3595 GLuint MaxInstructions
;
3596 GLuint MaxAluInstructions
;
3597 GLuint MaxTexInstructions
;
3598 GLuint MaxTexIndirections
;
3601 GLuint MaxAddressRegs
;
3602 GLuint MaxAddressOffset
; /**< [-MaxAddressOffset, MaxAddressOffset-1] */
3603 GLuint MaxParameters
;
3604 GLuint MaxLocalParams
;
3605 GLuint MaxEnvParams
;
3606 /* native/hardware limits */
3607 GLuint MaxNativeInstructions
;
3608 GLuint MaxNativeAluInstructions
;
3609 GLuint MaxNativeTexInstructions
;
3610 GLuint MaxNativeTexIndirections
;
3611 GLuint MaxNativeAttribs
;
3612 GLuint MaxNativeTemps
;
3613 GLuint MaxNativeAddressRegs
;
3614 GLuint MaxNativeParameters
;
3616 GLuint MaxUniformComponents
; /**< Usually == MaxParameters * 4 */
3619 * \name Per-stage input / output limits
3621 * Previous to OpenGL 3.2, the intrastage data limits were advertised with
3622 * a single value: GL_MAX_VARYING_COMPONENTS (GL_MAX_VARYING_VECTORS in
3623 * ES). This is stored as \c gl_constants::MaxVarying.
3625 * Starting with OpenGL 3.2, the limits are advertised with per-stage
3626 * variables. Each stage as a certain number of outputs that it can feed
3627 * to the next stage and a certain number inputs that it can consume from
3628 * the previous stage.
3630 * Vertex shader inputs do not participate this in this accounting.
3631 * These are tracked exclusively by \c gl_program_constants::MaxAttribs.
3633 * Fragment shader outputs do not participate this in this accounting.
3634 * These are tracked exclusively by \c gl_constants::MaxDrawBuffers.
3637 GLuint MaxInputComponents
;
3638 GLuint MaxOutputComponents
;
3641 /* ES 2.0 and GL_ARB_ES2_compatibility */
3642 struct gl_precision LowFloat
, MediumFloat
, HighFloat
;
3643 struct gl_precision LowInt
, MediumInt
, HighInt
;
3644 /* GL_ARB_uniform_buffer_object */
3645 GLuint MaxUniformBlocks
;
3646 GLuint MaxCombinedUniformComponents
;
3647 GLuint MaxTextureImageUnits
;
3649 /* GL_ARB_shader_atomic_counters */
3650 GLuint MaxAtomicBuffers
;
3651 GLuint MaxAtomicCounters
;
3653 /* GL_ARB_shader_image_load_store */
3654 GLuint MaxImageUniforms
;
3656 /* GL_ARB_shader_storage_buffer_object */
3657 GLuint MaxShaderStorageBlocks
;
3661 * Constants which may be overridden by device driver during context creation
3662 * but are never changed after that.
3666 GLuint MaxTextureMbytes
; /**< Max memory per image, in MB */
3667 GLuint MaxTextureLevels
; /**< Max mipmap levels. */
3668 GLuint Max3DTextureLevels
; /**< Max mipmap levels for 3D textures */
3669 GLuint MaxCubeTextureLevels
; /**< Max mipmap levels for cube textures */
3670 GLuint MaxArrayTextureLayers
; /**< Max layers in array textures */
3671 GLuint MaxTextureRectSize
; /**< Max rectangle texture size, in pixes */
3672 GLuint MaxTextureCoordUnits
;
3673 GLuint MaxCombinedTextureImageUnits
;
3674 GLuint MaxTextureUnits
; /**< = MIN(CoordUnits, FragmentProgram.ImageUnits) */
3675 GLfloat MaxTextureMaxAnisotropy
; /**< GL_EXT_texture_filter_anisotropic */
3676 GLfloat MaxTextureLodBias
; /**< GL_EXT_texture_lod_bias */
3677 GLuint MaxTextureBufferSize
; /**< GL_ARB_texture_buffer_object */
3679 GLuint TextureBufferOffsetAlignment
; /**< GL_ARB_texture_buffer_range */
3681 GLuint MaxArrayLockSize
;
3685 GLfloat MinPointSize
, MaxPointSize
; /**< aliased */
3686 GLfloat MinPointSizeAA
, MaxPointSizeAA
; /**< antialiased */
3687 GLfloat PointSizeGranularity
;
3688 GLfloat MinLineWidth
, MaxLineWidth
; /**< aliased */
3689 GLfloat MinLineWidthAA
, MaxLineWidthAA
; /**< antialiased */
3690 GLfloat LineWidthGranularity
;
3692 GLuint MaxClipPlanes
;
3694 GLfloat MaxShininess
; /**< GL_NV_light_max_exponent */
3695 GLfloat MaxSpotExponent
; /**< GL_NV_light_max_exponent */
3697 GLuint MaxViewportWidth
, MaxViewportHeight
;
3698 GLuint MaxViewports
; /**< GL_ARB_viewport_array */
3699 GLuint ViewportSubpixelBits
; /**< GL_ARB_viewport_array */
3703 } ViewportBounds
; /**< GL_ARB_viewport_array */
3704 GLuint MaxWindowRectangles
; /**< GL_EXT_window_rectangles */
3706 struct gl_program_constants Program
[MESA_SHADER_STAGES
];
3707 GLuint MaxProgramMatrices
;
3708 GLuint MaxProgramMatrixStackDepth
;
3711 GLuint SamplesPassed
;
3714 GLuint PrimitivesGenerated
;
3715 GLuint PrimitivesWritten
;
3716 GLuint VerticesSubmitted
;
3717 GLuint PrimitivesSubmitted
;
3718 GLuint VsInvocations
;
3720 GLuint TessInvocations
;
3721 GLuint GsInvocations
;
3722 GLuint GsPrimitives
;
3723 GLuint FsInvocations
;
3724 GLuint ComputeInvocations
;
3725 GLuint ClInPrimitives
;
3726 GLuint ClOutPrimitives
;
3729 GLuint MaxDrawBuffers
; /**< GL_ARB_draw_buffers */
3731 GLuint MaxColorAttachments
; /**< GL_EXT_framebuffer_object */
3732 GLuint MaxRenderbufferSize
; /**< GL_EXT_framebuffer_object */
3733 GLuint MaxSamples
; /**< GL_ARB_framebuffer_object */
3736 * GL_ARB_framebuffer_no_attachments
3738 GLuint MaxFramebufferWidth
;
3739 GLuint MaxFramebufferHeight
;
3740 GLuint MaxFramebufferLayers
;
3741 GLuint MaxFramebufferSamples
;
3743 /** Number of varying vectors between any two shader stages. */
3747 * GL_ARB_uniform_buffer_object
3749 GLuint MaxCombinedUniformBlocks
;
3750 GLuint MaxUniformBufferBindings
;
3751 GLuint MaxUniformBlockSize
;
3752 GLuint UniformBufferOffsetAlignment
;
3756 * GL_ARB_shader_storage_buffer_object
3758 GLuint MaxCombinedShaderStorageBlocks
;
3759 GLuint MaxShaderStorageBufferBindings
;
3760 GLuint MaxShaderStorageBlockSize
;
3761 GLuint ShaderStorageBufferOffsetAlignment
;
3765 * GL_ARB_explicit_uniform_location
3767 GLuint MaxUserAssignableUniformLocations
;
3769 /** geometry shader */
3770 GLuint MaxGeometryOutputVertices
;
3771 GLuint MaxGeometryTotalOutputComponents
;
3773 GLuint GLSLVersion
; /**< Desktop GLSL version supported (ex: 120 = 1.20) */
3776 * Changes default GLSL extension behavior from "error" to "warn". It's out
3777 * of spec, but it can make some apps work that otherwise wouldn't.
3779 GLboolean ForceGLSLExtensionsWarn
;
3782 * If non-zero, forces GLSL shaders to behave as if they began
3783 * with "#version ForceGLSLVersion".
3785 GLuint ForceGLSLVersion
;
3788 * Allow GLSL #extension directives in the middle of shaders.
3790 GLboolean AllowGLSLExtensionDirectiveMidShader
;
3793 * Allow GLSL built-in variables to be redeclared verbatim
3795 GLboolean AllowGLSLBuiltinVariableRedeclaration
;
3798 * Allow GLSL interpolation qualifier mismatch across shader stages.
3800 GLboolean AllowGLSLCrossStageInterpolationMismatch
;
3803 * Allow creating a higher compat profile (version 3.1+) for apps that
3804 * request it. Be careful when adding that driconf option because some
3805 * features are unimplemented and might not work correctly.
3807 GLboolean AllowHigherCompatVersion
;
3810 * Force computing the absolute value for sqrt() and inversesqrt() to follow
3811 * D3D9 when apps rely on this behaviour.
3813 GLboolean ForceGLSLAbsSqrt
;
3816 * Force uninitialized variables to default to zero.
3818 GLboolean GLSLZeroInit
;
3821 * Does the driver support real 32-bit integers? (Otherwise, integers are
3822 * simulated via floats.)
3824 GLboolean NativeIntegers
;
3827 * Does VertexID count from zero or from base vertex?
3830 * If desktop GLSL 1.30 or GLSL ES 3.00 are not supported, this field is
3831 * ignored and need not be set.
3833 bool VertexID_is_zero_based
;
3836 * If the driver supports real 32-bit integers, what integer value should be
3837 * used for boolean true in uniform uploads? (Usually 1 or ~0.)
3839 GLuint UniformBooleanTrue
;
3842 * Maximum amount of time, measured in nanseconds, that the server can wait.
3844 GLuint64 MaxServerWaitTimeout
;
3846 /** GL_EXT_provoking_vertex */
3847 GLboolean QuadsFollowProvokingVertexConvention
;
3849 /** GL_ARB_viewport_array */
3850 GLenum16 LayerAndVPIndexProvokingVertex
;
3852 /** OpenGL version 3.0 */
3853 GLbitfield ContextFlags
; /**< Ex: GL_CONTEXT_FLAG_FORWARD_COMPATIBLE_BIT */
3855 /** OpenGL version 3.2 */
3856 GLbitfield ProfileMask
; /**< Mask of CONTEXT_x_PROFILE_BIT */
3858 /** OpenGL version 4.4 */
3859 GLuint MaxVertexAttribStride
;
3861 /** GL_EXT_transform_feedback */
3862 GLuint MaxTransformFeedbackBuffers
;
3863 GLuint MaxTransformFeedbackSeparateComponents
;
3864 GLuint MaxTransformFeedbackInterleavedComponents
;
3865 GLuint MaxVertexStreams
;
3867 /** GL_EXT_gpu_shader4 */
3868 GLint MinProgramTexelOffset
, MaxProgramTexelOffset
;
3870 /** GL_ARB_texture_gather */
3871 GLuint MinProgramTextureGatherOffset
;
3872 GLuint MaxProgramTextureGatherOffset
;
3873 GLuint MaxProgramTextureGatherComponents
;
3875 /* GL_ARB_robustness */
3876 GLenum16 ResetStrategy
;
3878 /* GL_KHR_robustness */
3879 GLboolean RobustAccess
;
3881 /* GL_ARB_blend_func_extended */
3882 GLuint MaxDualSourceDrawBuffers
;
3885 * Whether the implementation strips out and ignores texture borders.
3887 * Many GPU hardware implementations don't support rendering with texture
3888 * borders and mipmapped textures. (Note: not static border color, but the
3889 * old 1-pixel border around each edge). Implementations then have to do
3890 * slow fallbacks to be correct, or just ignore the border and be fast but
3891 * wrong. Setting the flag strips the border off of TexImage calls,
3892 * providing "fast but wrong" at significantly reduced driver complexity.
3894 * Texture borders are deprecated in GL 3.0.
3896 GLboolean StripTextureBorder
;
3899 * For drivers which can do a better job at eliminating unused uniforms
3900 * than the GLSL compiler.
3902 * XXX Remove these as soon as a better solution is available.
3904 GLboolean GLSLSkipStrictMaxUniformLimitCheck
;
3906 /** Whether gl_FragCoord and gl_FrontFacing are system values. */
3907 bool GLSLFragCoordIsSysVal
;
3908 bool GLSLFrontFacingIsSysVal
;
3911 * Run the minimum amount of GLSL optimizations to be able to link
3912 * shaders optimally (eliminate dead varyings and uniforms) and just do
3913 * all the necessary lowering.
3915 bool GLSLOptimizeConservatively
;
3918 * True if gl_TessLevelInner/Outer[] in the TES should be inputs
3919 * (otherwise, they're system values).
3921 bool GLSLTessLevelsAsInputs
;
3924 * Always use the GetTransformFeedbackVertexCount() driver hook, rather
3925 * than passing the transform feedback object to the drawing function.
3927 GLboolean AlwaysUseGetTransformFeedbackVertexCount
;
3929 /** GL_ARB_map_buffer_alignment */
3930 GLuint MinMapBufferAlignment
;
3933 * Disable varying packing. This is out of spec, but potentially useful
3934 * for older platforms that supports a limited number of texture
3935 * indirections--on these platforms, unpacking the varyings in the fragment
3936 * shader increases the number of texture indirections by 1, which might
3937 * make some shaders not executable at all.
3939 * Drivers that support transform feedback must set this value to GL_FALSE.
3941 GLboolean DisableVaryingPacking
;
3944 * UBOs and SSBOs can be packed tightly by the OpenGL implementation when
3945 * layout is set as shared (the default) or packed. However most Mesa drivers
3946 * just use STD140 for these layouts. This flag allows drivers to use STD430
3947 * for packed and shared layouts which allows arrays to be packed more
3950 bool UseSTD430AsDefaultPacking
;
3953 * Should meaningful names be generated for compiler temporary variables?
3955 * Generally, it is not useful to have the compiler generate "meaningful"
3956 * names for temporary variables that it creates. This can, however, be a
3957 * useful debugging aid. In Mesa debug builds or release builds when
3958 * MESA_GLSL is set at run-time, meaningful names will be generated.
3959 * Drivers can also force names to be generated by setting this field.
3960 * For example, the i965 driver may set it when INTEL_DEBUG=vs (to dump
3961 * vertex shader assembly) is set at run-time.
3963 bool GenerateTemporaryNames
;
3966 * Maximum value supported for an index in DrawElements and friends.
3968 * This must be at least (1ull<<24)-1. The default value is
3971 * \since ES 3.0 or GL_ARB_ES3_compatibility
3972 * \sa _mesa_init_constants
3974 GLuint64 MaxElementIndex
;
3977 * Disable interpretation of line continuations (lines ending with a
3978 * backslash character ('\') in GLSL source.
3980 GLboolean DisableGLSLLineContinuations
;
3982 /** GL_ARB_texture_multisample */
3983 GLint MaxColorTextureSamples
;
3984 GLint MaxDepthTextureSamples
;
3985 GLint MaxIntegerSamples
;
3988 * GL_EXT_texture_multisample_blit_scaled implementation assumes that
3989 * samples are laid out in a rectangular grid roughly corresponding to
3990 * sample locations within a pixel. Below SampleMap{2,4,8}x variables
3991 * are used to map indices of rectangular grid to sample numbers within
3992 * a pixel. This mapping of indices to sample numbers must be initialized
3993 * by the driver for the target hardware. For example, if we have the 8X
3994 * MSAA sample number layout (sample positions) for XYZ hardware:
3996 * sample indices layout sample number layout
3997 * --------- ---------
3998 * | 0 | 1 | | a | b |
3999 * --------- ---------
4000 * | 2 | 3 | | c | d |
4001 * --------- ---------
4002 * | 4 | 5 | | e | f |
4003 * --------- ---------
4004 * | 6 | 7 | | g | h |
4005 * --------- ---------
4007 * Where a,b,c,d,e,f,g,h are integers between [0-7].
4009 * Then, initialize the SampleMap8x variable for XYZ hardware as shown
4011 * SampleMap8x = {a, b, c, d, e, f, g, h};
4013 * Follow the logic for sample counts 2-8.
4015 * For 16x the sample indices layout as a 4x4 grid as follows:
4027 uint8_t SampleMap2x
[2];
4028 uint8_t SampleMap4x
[4];
4029 uint8_t SampleMap8x
[8];
4030 uint8_t SampleMap16x
[16];
4032 /** GL_ARB_shader_atomic_counters */
4033 GLuint MaxAtomicBufferBindings
;
4034 GLuint MaxAtomicBufferSize
;
4035 GLuint MaxCombinedAtomicBuffers
;
4036 GLuint MaxCombinedAtomicCounters
;
4038 /** GL_ARB_vertex_attrib_binding */
4039 GLint MaxVertexAttribRelativeOffset
;
4040 GLint MaxVertexAttribBindings
;
4042 /* GL_ARB_shader_image_load_store */
4043 GLuint MaxImageUnits
;
4044 GLuint MaxCombinedShaderOutputResources
;
4045 GLuint MaxImageSamples
;
4046 GLuint MaxCombinedImageUniforms
;
4048 /** GL_ARB_compute_shader */
4049 GLuint MaxComputeWorkGroupCount
[3]; /* Array of x, y, z dimensions */
4050 GLuint MaxComputeWorkGroupSize
[3]; /* Array of x, y, z dimensions */
4051 GLuint MaxComputeWorkGroupInvocations
;
4052 GLuint MaxComputeSharedMemorySize
;
4054 /** GL_ARB_compute_variable_group_size */
4055 GLuint MaxComputeVariableGroupSize
[3]; /* Array of x, y, z dimensions */
4056 GLuint MaxComputeVariableGroupInvocations
;
4058 /** GL_ARB_gpu_shader5 */
4059 GLfloat MinFragmentInterpolationOffset
;
4060 GLfloat MaxFragmentInterpolationOffset
;
4062 GLboolean FakeSWMSAA
;
4064 /** GL_KHR_context_flush_control */
4065 GLenum16 ContextReleaseBehavior
;
4067 struct gl_shader_compiler_options ShaderCompilerOptions
[MESA_SHADER_STAGES
];
4069 /** GL_ARB_tessellation_shader */
4070 GLuint MaxPatchVertices
;
4071 GLuint MaxTessGenLevel
;
4072 GLuint MaxTessPatchComponents
;
4073 GLuint MaxTessControlTotalOutputComponents
;
4074 bool LowerTessLevel
; /**< Lower gl_TessLevel* from float[n] to vecn? */
4075 bool PrimitiveRestartForPatches
;
4076 bool LowerCsDerivedVariables
; /**< Lower gl_GlobalInvocationID and
4077 * gl_LocalInvocationIndex based on
4078 * other builtin variables. */
4080 /** GL_OES_primitive_bounding_box */
4081 bool NoPrimitiveBoundingBoxOutput
;
4083 /** GL_ARB_sparse_buffer */
4084 GLuint SparseBufferPageSize
;
4086 /** Used as an input for sha1 generation in the on-disk shader cache */
4087 unsigned char *dri_config_options_sha1
;
4089 /** When drivers are OK with mapped buffers during draw and other calls. */
4090 bool AllowMappedBuffersDuringExecution
;
4092 /** GL_ARB_get_program_binary */
4093 GLuint NumProgramBinaryFormats
;
4098 * Enable flag for each OpenGL extension. Different device drivers will
4099 * enable different extensions at runtime.
4101 struct gl_extensions
4103 GLboolean dummy
; /* don't remove this! */
4104 GLboolean dummy_true
; /* Set true by _mesa_init_extensions(). */
4105 GLboolean dummy_false
; /* Set false by _mesa_init_extensions(). */
4106 GLboolean ANGLE_texture_compression_dxt
;
4107 GLboolean ARB_ES2_compatibility
;
4108 GLboolean ARB_ES3_compatibility
;
4109 GLboolean ARB_ES3_1_compatibility
;
4110 GLboolean ARB_ES3_2_compatibility
;
4111 GLboolean ARB_arrays_of_arrays
;
4112 GLboolean ARB_base_instance
;
4113 GLboolean ARB_bindless_texture
;
4114 GLboolean ARB_blend_func_extended
;
4115 GLboolean ARB_buffer_storage
;
4116 GLboolean ARB_clear_texture
;
4117 GLboolean ARB_clip_control
;
4118 GLboolean ARB_color_buffer_float
;
4119 GLboolean ARB_compute_shader
;
4120 GLboolean ARB_compute_variable_group_size
;
4121 GLboolean ARB_conditional_render_inverted
;
4122 GLboolean ARB_conservative_depth
;
4123 GLboolean ARB_copy_image
;
4124 GLboolean ARB_cull_distance
;
4125 GLboolean ARB_depth_buffer_float
;
4126 GLboolean ARB_depth_clamp
;
4127 GLboolean ARB_depth_texture
;
4128 GLboolean ARB_derivative_control
;
4129 GLboolean ARB_draw_buffers_blend
;
4130 GLboolean ARB_draw_elements_base_vertex
;
4131 GLboolean ARB_draw_indirect
;
4132 GLboolean ARB_draw_instanced
;
4133 GLboolean ARB_fragment_coord_conventions
;
4134 GLboolean ARB_fragment_layer_viewport
;
4135 GLboolean ARB_fragment_program
;
4136 GLboolean ARB_fragment_program_shadow
;
4137 GLboolean ARB_fragment_shader
;
4138 GLboolean ARB_framebuffer_no_attachments
;
4139 GLboolean ARB_framebuffer_object
;
4140 GLboolean ARB_enhanced_layouts
;
4141 GLboolean ARB_explicit_attrib_location
;
4142 GLboolean ARB_explicit_uniform_location
;
4143 GLboolean ARB_gl_spirv
;
4144 GLboolean ARB_gpu_shader5
;
4145 GLboolean ARB_gpu_shader_fp64
;
4146 GLboolean ARB_gpu_shader_int64
;
4147 GLboolean ARB_half_float_vertex
;
4148 GLboolean ARB_indirect_parameters
;
4149 GLboolean ARB_instanced_arrays
;
4150 GLboolean ARB_internalformat_query
;
4151 GLboolean ARB_internalformat_query2
;
4152 GLboolean ARB_map_buffer_range
;
4153 GLboolean ARB_occlusion_query
;
4154 GLboolean ARB_occlusion_query2
;
4155 GLboolean ARB_pipeline_statistics_query
;
4156 GLboolean ARB_point_sprite
;
4157 GLboolean ARB_polygon_offset_clamp
;
4158 GLboolean ARB_post_depth_coverage
;
4159 GLboolean ARB_query_buffer_object
;
4160 GLboolean ARB_robust_buffer_access_behavior
;
4161 GLboolean ARB_sample_shading
;
4162 GLboolean ARB_seamless_cube_map
;
4163 GLboolean ARB_shader_atomic_counter_ops
;
4164 GLboolean ARB_shader_atomic_counters
;
4165 GLboolean ARB_shader_ballot
;
4166 GLboolean ARB_shader_bit_encoding
;
4167 GLboolean ARB_shader_clock
;
4168 GLboolean ARB_shader_draw_parameters
;
4169 GLboolean ARB_shader_group_vote
;
4170 GLboolean ARB_shader_image_load_store
;
4171 GLboolean ARB_shader_image_size
;
4172 GLboolean ARB_shader_precision
;
4173 GLboolean ARB_shader_stencil_export
;
4174 GLboolean ARB_shader_storage_buffer_object
;
4175 GLboolean ARB_shader_texture_image_samples
;
4176 GLboolean ARB_shader_texture_lod
;
4177 GLboolean ARB_shader_viewport_layer_array
;
4178 GLboolean ARB_shading_language_packing
;
4179 GLboolean ARB_shading_language_420pack
;
4180 GLboolean ARB_shadow
;
4181 GLboolean ARB_sparse_buffer
;
4182 GLboolean ARB_stencil_texturing
;
4184 GLboolean ARB_tessellation_shader
;
4185 GLboolean ARB_texture_border_clamp
;
4186 GLboolean ARB_texture_buffer_object
;
4187 GLboolean ARB_texture_buffer_object_rgb32
;
4188 GLboolean ARB_texture_buffer_range
;
4189 GLboolean ARB_texture_compression_bptc
;
4190 GLboolean ARB_texture_compression_rgtc
;
4191 GLboolean ARB_texture_cube_map
;
4192 GLboolean ARB_texture_cube_map_array
;
4193 GLboolean ARB_texture_env_combine
;
4194 GLboolean ARB_texture_env_crossbar
;
4195 GLboolean ARB_texture_env_dot3
;
4196 GLboolean ARB_texture_filter_anisotropic
;
4197 GLboolean ARB_texture_float
;
4198 GLboolean ARB_texture_gather
;
4199 GLboolean ARB_texture_mirror_clamp_to_edge
;
4200 GLboolean ARB_texture_multisample
;
4201 GLboolean ARB_texture_non_power_of_two
;
4202 GLboolean ARB_texture_stencil8
;
4203 GLboolean ARB_texture_query_levels
;
4204 GLboolean ARB_texture_query_lod
;
4205 GLboolean ARB_texture_rg
;
4206 GLboolean ARB_texture_rgb10_a2ui
;
4207 GLboolean ARB_texture_view
;
4208 GLboolean ARB_timer_query
;
4209 GLboolean ARB_transform_feedback2
;
4210 GLboolean ARB_transform_feedback3
;
4211 GLboolean ARB_transform_feedback_instanced
;
4212 GLboolean ARB_transform_feedback_overflow_query
;
4213 GLboolean ARB_uniform_buffer_object
;
4214 GLboolean ARB_vertex_attrib_64bit
;
4215 GLboolean ARB_vertex_program
;
4216 GLboolean ARB_vertex_shader
;
4217 GLboolean ARB_vertex_type_10f_11f_11f_rev
;
4218 GLboolean ARB_vertex_type_2_10_10_10_rev
;
4219 GLboolean ARB_viewport_array
;
4220 GLboolean EXT_blend_color
;
4221 GLboolean EXT_blend_equation_separate
;
4222 GLboolean EXT_blend_func_separate
;
4223 GLboolean EXT_blend_minmax
;
4224 GLboolean EXT_depth_bounds_test
;
4225 GLboolean EXT_disjoint_timer_query
;
4226 GLboolean EXT_draw_buffers2
;
4227 GLboolean EXT_framebuffer_multisample
;
4228 GLboolean EXT_framebuffer_multisample_blit_scaled
;
4229 GLboolean EXT_framebuffer_sRGB
;
4230 GLboolean EXT_gpu_program_parameters
;
4231 GLboolean EXT_gpu_shader4
;
4232 GLboolean EXT_memory_object
;
4233 GLboolean EXT_memory_object_fd
;
4234 GLboolean EXT_packed_float
;
4235 GLboolean EXT_pixel_buffer_object
;
4236 GLboolean EXT_point_parameters
;
4237 GLboolean EXT_provoking_vertex
;
4238 GLboolean EXT_semaphore
;
4239 GLboolean EXT_semaphore_fd
;
4240 GLboolean EXT_shader_integer_mix
;
4241 GLboolean EXT_shader_samples_identical
;
4242 GLboolean EXT_stencil_two_side
;
4243 GLboolean EXT_texture_array
;
4244 GLboolean EXT_texture_compression_latc
;
4245 GLboolean EXT_texture_compression_s3tc
;
4246 GLboolean EXT_texture_env_dot3
;
4247 GLboolean EXT_texture_filter_anisotropic
;
4248 GLboolean EXT_texture_integer
;
4249 GLboolean EXT_texture_mirror_clamp
;
4250 GLboolean EXT_texture_shared_exponent
;
4251 GLboolean EXT_texture_snorm
;
4252 GLboolean EXT_texture_sRGB
;
4253 GLboolean EXT_texture_sRGB_decode
;
4254 GLboolean EXT_texture_swizzle
;
4255 GLboolean EXT_texture_type_2_10_10_10_REV
;
4256 GLboolean EXT_transform_feedback
;
4257 GLboolean EXT_timer_query
;
4258 GLboolean EXT_vertex_array_bgra
;
4259 GLboolean EXT_window_rectangles
;
4260 GLboolean OES_copy_image
;
4261 GLboolean OES_primitive_bounding_box
;
4262 GLboolean OES_sample_variables
;
4263 GLboolean OES_standard_derivatives
;
4264 GLboolean OES_texture_buffer
;
4265 GLboolean OES_texture_cube_map_array
;
4266 GLboolean OES_viewport_array
;
4267 /* vendor extensions */
4268 GLboolean AMD_performance_monitor
;
4269 GLboolean AMD_pinned_memory
;
4270 GLboolean AMD_seamless_cubemap_per_texture
;
4271 GLboolean AMD_vertex_shader_layer
;
4272 GLboolean AMD_vertex_shader_viewport_index
;
4273 GLboolean ANDROID_extension_pack_es31a
;
4274 GLboolean APPLE_object_purgeable
;
4275 GLboolean ATI_meminfo
;
4276 GLboolean ATI_texture_compression_3dc
;
4277 GLboolean ATI_texture_mirror_once
;
4278 GLboolean ATI_texture_env_combine3
;
4279 GLboolean ATI_fragment_shader
;
4280 GLboolean ATI_separate_stencil
;
4281 GLboolean GREMEDY_string_marker
;
4282 GLboolean INTEL_conservative_rasterization
;
4283 GLboolean INTEL_performance_query
;
4284 GLboolean KHR_blend_equation_advanced
;
4285 GLboolean KHR_blend_equation_advanced_coherent
;
4286 GLboolean KHR_robustness
;
4287 GLboolean KHR_texture_compression_astc_hdr
;
4288 GLboolean KHR_texture_compression_astc_ldr
;
4289 GLboolean KHR_texture_compression_astc_sliced_3d
;
4290 GLboolean MESA_tile_raster_order
;
4291 GLboolean MESA_pack_invert
;
4292 GLboolean MESA_shader_framebuffer_fetch
;
4293 GLboolean MESA_shader_framebuffer_fetch_non_coherent
;
4294 GLboolean MESA_shader_integer_functions
;
4295 GLboolean MESA_ycbcr_texture
;
4296 GLboolean NV_conditional_render
;
4297 GLboolean NV_fill_rectangle
;
4298 GLboolean NV_fog_distance
;
4299 GLboolean NV_point_sprite
;
4300 GLboolean NV_primitive_restart
;
4301 GLboolean NV_texture_barrier
;
4302 GLboolean NV_texture_env_combine4
;
4303 GLboolean NV_texture_rectangle
;
4304 GLboolean NV_vdpau_interop
;
4305 GLboolean NVX_gpu_memory_info
;
4306 GLboolean TDFX_texture_compression_FXT1
;
4307 GLboolean OES_EGL_image
;
4308 GLboolean OES_draw_texture
;
4309 GLboolean OES_depth_texture_cube_map
;
4310 GLboolean OES_EGL_image_external
;
4311 GLboolean OES_texture_float
;
4312 GLboolean OES_texture_float_linear
;
4313 GLboolean OES_texture_half_float
;
4314 GLboolean OES_texture_half_float_linear
;
4315 GLboolean OES_compressed_ETC1_RGB8_texture
;
4316 GLboolean OES_geometry_shader
;
4317 GLboolean OES_texture_compression_astc
;
4318 GLboolean extension_sentinel
;
4319 /** The extension string */
4320 const GLubyte
*String
;
4321 /** Number of supported extensions */
4324 * The context version which extension helper functions compare against.
4325 * By default, the value is equal to ctx->Version. This changes to ~0
4326 * while meta is in progress.
4330 * Force-enabled, yet unrecognized, extensions.
4331 * See _mesa_one_time_init_extension_overrides()
4333 #define MAX_UNRECOGNIZED_EXTENSIONS 16
4334 const char *unrecognized_extensions
[MAX_UNRECOGNIZED_EXTENSIONS
];
4339 * A stack of matrices (projection, modelview, color, texture, etc).
4341 struct gl_matrix_stack
4343 GLmatrix
*Top
; /**< points into Stack */
4344 GLmatrix
*Stack
; /**< array [MaxDepth] of GLmatrix */
4345 unsigned StackSize
; /**< Number of elements in Stack */
4346 GLuint Depth
; /**< 0 <= Depth < MaxDepth */
4347 GLuint MaxDepth
; /**< size of Stack[] array */
4348 GLuint DirtyFlag
; /**< _NEW_MODELVIEW or _NEW_PROJECTION, for example */
4353 * \name Bits for image transfer operations
4354 * \sa __struct gl_contextRec::ImageTransferState.
4357 #define IMAGE_SCALE_BIAS_BIT 0x1
4358 #define IMAGE_SHIFT_OFFSET_BIT 0x2
4359 #define IMAGE_MAP_COLOR_BIT 0x4
4360 #define IMAGE_CLAMP_BIT 0x800
4363 /** Pixel Transfer ops */
4364 #define IMAGE_BITS (IMAGE_SCALE_BIAS_BIT | \
4365 IMAGE_SHIFT_OFFSET_BIT | \
4366 IMAGE_MAP_COLOR_BIT)
4370 * \name Bits to indicate what state has changed.
4373 #define _NEW_MODELVIEW (1u << 0) /**< gl_context::ModelView */
4374 #define _NEW_PROJECTION (1u << 1) /**< gl_context::Projection */
4375 #define _NEW_TEXTURE_MATRIX (1u << 2) /**< gl_context::TextureMatrix */
4376 #define _NEW_COLOR (1u << 3) /**< gl_context::Color */
4377 #define _NEW_DEPTH (1u << 4) /**< gl_context::Depth */
4378 #define _NEW_EVAL (1u << 5) /**< gl_context::Eval, EvalMap */
4379 #define _NEW_FOG (1u << 6) /**< gl_context::Fog */
4380 #define _NEW_HINT (1u << 7) /**< gl_context::Hint */
4381 #define _NEW_LIGHT (1u << 8) /**< gl_context::Light */
4382 #define _NEW_LINE (1u << 9) /**< gl_context::Line */
4383 #define _NEW_PIXEL (1u << 10) /**< gl_context::Pixel */
4384 #define _NEW_POINT (1u << 11) /**< gl_context::Point */
4385 #define _NEW_POLYGON (1u << 12) /**< gl_context::Polygon */
4386 #define _NEW_POLYGONSTIPPLE (1u << 13) /**< gl_context::PolygonStipple */
4387 #define _NEW_SCISSOR (1u << 14) /**< gl_context::Scissor */
4388 #define _NEW_STENCIL (1u << 15) /**< gl_context::Stencil */
4389 #define _NEW_TEXTURE_OBJECT (1u << 16) /**< gl_context::Texture (bindings only) */
4390 #define _NEW_TRANSFORM (1u << 17) /**< gl_context::Transform */
4391 #define _NEW_VIEWPORT (1u << 18) /**< gl_context::Viewport */
4392 #define _NEW_TEXTURE_STATE (1u << 19) /**< gl_context::Texture (states only) */
4393 #define _NEW_ARRAY (1u << 20) /**< gl_context::Array */
4394 #define _NEW_RENDERMODE (1u << 21) /**< gl_context::RenderMode, etc */
4395 #define _NEW_BUFFERS (1u << 22) /**< gl_context::Visual, DrawBuffer, */
4396 #define _NEW_CURRENT_ATTRIB (1u << 23) /**< gl_context::Current */
4397 #define _NEW_MULTISAMPLE (1u << 24) /**< gl_context::Multisample */
4398 #define _NEW_TRACK_MATRIX (1u << 25) /**< gl_context::VertexProgram */
4399 #define _NEW_PROGRAM (1u << 26) /**< New program/shader state */
4400 #define _NEW_PROGRAM_CONSTANTS (1u << 27)
4402 #define _NEW_FRAG_CLAMP (1u << 29)
4403 /* gap, re-use for core Mesa state only; use ctx->DriverFlags otherwise */
4404 #define _NEW_VARYING_VP_INPUTS (1u << 31) /**< gl_context::varying_vp_inputs */
4410 * Composite state flags
4413 #define _NEW_TEXTURE (_NEW_TEXTURE_OBJECT | _NEW_TEXTURE_STATE)
4415 #define _MESA_NEW_NEED_EYE_COORDS (_NEW_LIGHT | \
4416 _NEW_TEXTURE_STATE | \
4421 #define _MESA_NEW_SEPARATE_SPECULAR (_NEW_LIGHT | \
4431 /* This has to be included here. */
4435 /** Opaque declaration of display list payload data type */
4436 union gl_dlist_node
;
4440 * Per-display list information.
4442 struct gl_display_list
4445 GLbitfield Flags
; /**< DLIST_x flags */
4446 GLchar
*Label
; /**< GL_KHR_debug */
4447 /** The dlist commands are in a linked list of nodes */
4448 union gl_dlist_node
*Head
;
4453 * State used during display list compilation and execution.
4455 struct gl_dlist_state
4457 struct gl_display_list
*CurrentList
; /**< List currently being compiled */
4458 union gl_dlist_node
*CurrentBlock
; /**< Pointer to current block of nodes */
4459 GLuint CurrentPos
; /**< Index into current block of nodes */
4460 GLuint CallDepth
; /**< Current recursion calling depth */
4462 GLvertexformat ListVtxfmt
;
4464 GLubyte ActiveAttribSize
[VERT_ATTRIB_MAX
];
4465 GLfloat CurrentAttrib
[VERT_ATTRIB_MAX
][4];
4467 GLubyte ActiveMaterialSize
[MAT_ATTRIB_MAX
];
4468 GLfloat CurrentMaterial
[MAT_ATTRIB_MAX
][4];
4471 /* State known to have been set by the currently-compiling display
4472 * list. Used to eliminate some redundant state changes.
4474 GLenum16 ShadeModel
;
4480 * These are a mapping of the GL_ARB_debug_output/GL_KHR_debug enums
4481 * to small enums suitable for use as an array index.
4484 enum mesa_debug_source
4486 MESA_DEBUG_SOURCE_API
,
4487 MESA_DEBUG_SOURCE_WINDOW_SYSTEM
,
4488 MESA_DEBUG_SOURCE_SHADER_COMPILER
,
4489 MESA_DEBUG_SOURCE_THIRD_PARTY
,
4490 MESA_DEBUG_SOURCE_APPLICATION
,
4491 MESA_DEBUG_SOURCE_OTHER
,
4492 MESA_DEBUG_SOURCE_COUNT
4495 enum mesa_debug_type
4497 MESA_DEBUG_TYPE_ERROR
,
4498 MESA_DEBUG_TYPE_DEPRECATED
,
4499 MESA_DEBUG_TYPE_UNDEFINED
,
4500 MESA_DEBUG_TYPE_PORTABILITY
,
4501 MESA_DEBUG_TYPE_PERFORMANCE
,
4502 MESA_DEBUG_TYPE_OTHER
,
4503 MESA_DEBUG_TYPE_MARKER
,
4504 MESA_DEBUG_TYPE_PUSH_GROUP
,
4505 MESA_DEBUG_TYPE_POP_GROUP
,
4506 MESA_DEBUG_TYPE_COUNT
4509 enum mesa_debug_severity
4511 MESA_DEBUG_SEVERITY_LOW
,
4512 MESA_DEBUG_SEVERITY_MEDIUM
,
4513 MESA_DEBUG_SEVERITY_HIGH
,
4514 MESA_DEBUG_SEVERITY_NOTIFICATION
,
4515 MESA_DEBUG_SEVERITY_COUNT
4521 * Driver-specific state flags.
4523 * These are or'd with gl_context::NewDriverState to notify a driver about
4524 * a state change. The driver sets the flags at context creation and
4525 * the meaning of the bits set is opaque to core Mesa.
4527 struct gl_driver_flags
4529 /** gl_context::Array::_DrawArrays (vertex array state) */
4532 /** gl_context::TransformFeedback::CurrentObject */
4533 uint64_t NewTransformFeedback
;
4535 /** gl_context::TransformFeedback::CurrentObject::shader_program */
4536 uint64_t NewTransformFeedbackProg
;
4538 /** gl_context::RasterDiscard */
4539 uint64_t NewRasterizerDiscard
;
4541 /** gl_context::TileRasterOrder* */
4542 uint64_t NewTileRasterOrder
;
4545 * gl_context::UniformBufferBindings
4546 * gl_shader_program::UniformBlocks
4548 uint64_t NewUniformBuffer
;
4551 * gl_context::ShaderStorageBufferBindings
4552 * gl_shader_program::ShaderStorageBlocks
4554 uint64_t NewShaderStorageBuffer
;
4556 uint64_t NewTextureBuffer
;
4559 * gl_context::AtomicBufferBindings
4561 uint64_t NewAtomicBuffer
;
4564 * gl_context::ImageUnits
4566 uint64_t NewImageUnits
;
4569 * gl_context::TessCtrlProgram::patch_default_*
4571 uint64_t NewDefaultTessLevels
;
4574 * gl_context::IntelConservativeRasterization
4576 uint64_t NewIntelConservativeRasterization
;
4579 * gl_context::Scissor::WindowRects
4581 uint64_t NewWindowRectangles
;
4583 /** gl_context::Color::sRGBEnabled */
4584 uint64_t NewFramebufferSRGB
;
4586 /** gl_context::Scissor::EnableFlags */
4587 uint64_t NewScissorTest
;
4589 /** gl_context::Scissor::ScissorArray */
4590 uint64_t NewScissorRect
;
4592 /** gl_context::Color::Alpha* */
4593 uint64_t NewAlphaTest
;
4595 /** gl_context::Color::Blend/Dither */
4598 /** gl_context::Color::BlendColor */
4599 uint64_t NewBlendColor
;
4601 /** gl_context::Color::Color/Index */
4602 uint64_t NewColorMask
;
4604 /** gl_context::Depth */
4607 /** gl_context::Color::LogicOp/ColorLogicOp/IndexLogicOp */
4608 uint64_t NewLogicOp
;
4610 /** gl_context::Multisample::Enabled */
4611 uint64_t NewMultisampleEnable
;
4613 /** gl_context::Multisample::SampleAlphaTo* */
4614 uint64_t NewSampleAlphaToXEnable
;
4616 /** gl_context::Multisample::SampleCoverage/SampleMaskValue */
4617 uint64_t NewSampleMask
;
4619 /** gl_context::Multisample::(Min)SampleShading */
4620 uint64_t NewSampleShading
;
4622 /** gl_context::Stencil */
4623 uint64_t NewStencil
;
4625 /** gl_context::Transform::ClipOrigin/ClipDepthMode */
4626 uint64_t NewClipControl
;
4628 /** gl_context::Transform::EyeUserPlane */
4629 uint64_t NewClipPlane
;
4631 /** gl_context::Transform::ClipPlanesEnabled */
4632 uint64_t NewClipPlaneEnable
;
4634 /** gl_context::Transform::DepthClamp */
4635 uint64_t NewDepthClamp
;
4637 /** gl_context::Line */
4638 uint64_t NewLineState
;
4640 /** gl_context::Polygon */
4641 uint64_t NewPolygonState
;
4643 /** gl_context::PolygonStipple */
4644 uint64_t NewPolygonStipple
;
4646 /** gl_context::ViewportArray */
4647 uint64_t NewViewport
;
4649 /** Shader constants (uniforms, program parameters, state constants) */
4650 uint64_t NewShaderConstants
[MESA_SHADER_STAGES
];
4653 struct gl_buffer_binding
4655 struct gl_buffer_object
*BufferObject
;
4656 /** Start of uniform block data in the buffer */
4658 /** Size of data allowed to be referenced from the buffer (in bytes) */
4661 * glBindBufferBase() indicates that the Size should be ignored and only
4662 * limited by the current size of the BufferObject.
4664 GLboolean AutomaticSize
;
4668 * ARB_shader_image_load_store image unit.
4670 struct gl_image_unit
4673 * Texture object bound to this unit.
4675 struct gl_texture_object
*TexObj
;
4678 * Level of the texture object bound to this unit.
4683 * \c GL_TRUE if the whole level is bound as an array of layers, \c
4684 * GL_FALSE if only some specific layer of the texture is bound.
4690 * Layer of the texture object bound to this unit as specified by the
4696 * Layer of the texture object bound to this unit, or zero if the
4697 * whole level is bound.
4702 * Access allowed to this texture image. Either \c GL_READ_ONLY,
4703 * \c GL_WRITE_ONLY or \c GL_READ_WRITE.
4708 * GL internal format that determines the interpretation of the
4709 * image memory when shader image operations are performed through
4715 * Mesa format corresponding to \c Format.
4717 mesa_format _ActualFormat
;
4722 * Shader subroutines storage
4724 struct gl_subroutine_index_binding
4730 struct gl_texture_handle_object
4732 struct gl_texture_object
*texObj
;
4733 struct gl_sampler_object
*sampObj
;
4737 struct gl_image_handle_object
4739 struct gl_image_unit imgObj
;
4743 struct gl_memory_object
4745 GLuint Name
; /**< hash table ID/name */
4746 GLboolean Immutable
; /**< denotes mutability state of parameters */
4747 GLboolean Dedicated
; /**< import memory from a dedicated allocation */
4750 struct gl_semaphore_object
4752 GLuint Name
; /**< hash table ID/name */
4756 * Mesa rendering context.
4758 * This is the central context data structure for Mesa. Almost all
4759 * OpenGL state is contained in this structure.
4760 * Think of this as a base class from which device drivers will derive
4765 /** State possibly shared with other contexts in the address space */
4766 struct gl_shared_state
*Shared
;
4768 /** \name API function pointer tables */
4773 * The current dispatch table for non-displaylist-saving execution, either
4774 * BeginEnd or OutsideBeginEnd
4776 struct _glapi_table
*Exec
;
4778 * The normal dispatch table for non-displaylist-saving, non-begin/end
4780 struct _glapi_table
*OutsideBeginEnd
;
4781 /** The dispatch table used between glNewList() and glEndList() */
4782 struct _glapi_table
*Save
;
4784 * The dispatch table used between glBegin() and glEnd() (outside of a
4785 * display list). Only valid functions between those two are set, which is
4786 * mostly just the set in a GLvertexformat struct.
4788 struct _glapi_table
*BeginEnd
;
4790 * Dispatch table for when a graphics reset has happened.
4792 struct _glapi_table
*ContextLost
;
4794 * Dispatch table used to marshal API calls from the client program to a
4795 * separate server thread. NULL if API calls are not being marshalled to
4798 struct _glapi_table
*MarshalExec
;
4800 * Dispatch table currently in use for fielding API calls from the client
4801 * program. If API calls are being marshalled to another thread, this ==
4802 * MarshalExec. Otherwise it == CurrentServerDispatch.
4804 struct _glapi_table
*CurrentClientDispatch
;
4807 * Dispatch table currently in use for performing API calls. == Save or
4810 struct _glapi_table
*CurrentServerDispatch
;
4814 struct glthread_state
*GLThread
;
4816 struct gl_config Visual
;
4817 struct gl_framebuffer
*DrawBuffer
; /**< buffer for writing */
4818 struct gl_framebuffer
*ReadBuffer
; /**< buffer for reading */
4819 struct gl_framebuffer
*WinSysDrawBuffer
; /**< set with MakeCurrent */
4820 struct gl_framebuffer
*WinSysReadBuffer
; /**< set with MakeCurrent */
4823 * Device driver function pointer table
4825 struct dd_function_table Driver
;
4827 /** Core/Driver constants */
4828 struct gl_constants Const
;
4830 /** \name The various 4x4 matrix stacks */
4832 struct gl_matrix_stack ModelviewMatrixStack
;
4833 struct gl_matrix_stack ProjectionMatrixStack
;
4834 struct gl_matrix_stack TextureMatrixStack
[MAX_TEXTURE_UNITS
];
4835 struct gl_matrix_stack ProgramMatrixStack
[MAX_PROGRAM_MATRICES
];
4836 struct gl_matrix_stack
*CurrentStack
; /**< Points to one of the above stacks */
4839 /** Combined modelview and projection matrix */
4840 GLmatrix _ModelProjectMatrix
;
4842 /** \name Display lists */
4843 struct gl_dlist_state ListState
;
4845 GLboolean ExecuteFlag
; /**< Execute GL commands? */
4846 GLboolean CompileFlag
; /**< Compile GL commands into display list? */
4848 /** Extension information */
4849 struct gl_extensions Extensions
;
4851 /** GL version integer, for example 31 for GL 3.1, or 20 for GLES 2.0. */
4853 char *VersionString
;
4855 /** \name State attribute stack (for glPush/PopAttrib) */
4857 GLuint AttribStackDepth
;
4858 struct gl_attrib_node
*AttribStack
[MAX_ATTRIB_STACK_DEPTH
];
4861 /** \name Renderer attribute groups
4863 * We define a struct for each attribute group to make pushing and popping
4864 * attributes easy. Also it's a good organization.
4867 struct gl_accum_attrib Accum
; /**< Accum buffer attributes */
4868 struct gl_colorbuffer_attrib Color
; /**< Color buffer attributes */
4869 struct gl_current_attrib Current
; /**< Current attributes */
4870 struct gl_depthbuffer_attrib Depth
; /**< Depth buffer attributes */
4871 struct gl_eval_attrib Eval
; /**< Eval attributes */
4872 struct gl_fog_attrib Fog
; /**< Fog attributes */
4873 struct gl_hint_attrib Hint
; /**< Hint attributes */
4874 struct gl_light_attrib Light
; /**< Light attributes */
4875 struct gl_line_attrib Line
; /**< Line attributes */
4876 struct gl_list_attrib List
; /**< List attributes */
4877 struct gl_multisample_attrib Multisample
;
4878 struct gl_pixel_attrib Pixel
; /**< Pixel attributes */
4879 struct gl_point_attrib Point
; /**< Point attributes */
4880 struct gl_polygon_attrib Polygon
; /**< Polygon attributes */
4881 GLuint PolygonStipple
[32]; /**< Polygon stipple */
4882 struct gl_scissor_attrib Scissor
; /**< Scissor attributes */
4883 struct gl_stencil_attrib Stencil
; /**< Stencil buffer attributes */
4884 struct gl_texture_attrib Texture
; /**< Texture attributes */
4885 struct gl_transform_attrib Transform
; /**< Transformation attributes */
4886 struct gl_viewport_attrib ViewportArray
[MAX_VIEWPORTS
]; /**< Viewport attributes */
4889 /** \name Client attribute stack */
4891 GLuint ClientAttribStackDepth
;
4892 struct gl_attrib_node
*ClientAttribStack
[MAX_CLIENT_ATTRIB_STACK_DEPTH
];
4895 /** \name Client attribute groups */
4897 struct gl_array_attrib Array
; /**< Vertex arrays */
4898 struct gl_pixelstore_attrib Pack
; /**< Pixel packing */
4899 struct gl_pixelstore_attrib Unpack
; /**< Pixel unpacking */
4900 struct gl_pixelstore_attrib DefaultPacking
; /**< Default params */
4903 /** \name Other assorted state (not pushed/popped on attribute stack) */
4905 struct gl_pixelmaps PixelMaps
;
4907 struct gl_evaluators EvalMap
; /**< All evaluators */
4908 struct gl_feedback Feedback
; /**< Feedback */
4909 struct gl_selection Select
; /**< Selection */
4911 struct gl_program_state Program
; /**< general program state */
4912 struct gl_vertex_program_state VertexProgram
;
4913 struct gl_fragment_program_state FragmentProgram
;
4914 struct gl_geometry_program_state GeometryProgram
;
4915 struct gl_compute_program_state ComputeProgram
;
4916 struct gl_tess_ctrl_program_state TessCtrlProgram
;
4917 struct gl_tess_eval_program_state TessEvalProgram
;
4918 struct gl_ati_fragment_shader_state ATIFragmentShader
;
4920 struct gl_pipeline_shader_state Pipeline
; /**< GLSL pipeline shader object state */
4921 struct gl_pipeline_object Shader
; /**< GLSL shader object state */
4924 * Current active shader pipeline state
4926 * Almost all internal users want ::_Shader instead of ::Shader. The
4927 * exceptions are bits of legacy GLSL API that do not know about separate
4930 * If a program is active via \c glUseProgram, this will point to
4933 * If a program pipeline is active via \c glBindProgramPipeline, this will
4934 * point to \c ::Pipeline.Current.
4936 * If neither a program nor a program pipeline is active, this will point to
4937 * \c ::Pipeline.Default. This ensures that \c ::_Shader will never be
4940 struct gl_pipeline_object
*_Shader
;
4942 struct gl_query_state Query
; /**< occlusion, timer queries */
4944 struct gl_transform_feedback_state TransformFeedback
;
4946 struct gl_perf_monitor_state PerfMonitor
;
4947 struct gl_perf_query_state PerfQuery
;
4949 struct gl_buffer_object
*DrawIndirectBuffer
; /** < GL_ARB_draw_indirect */
4950 struct gl_buffer_object
*ParameterBuffer
; /** < GL_ARB_indirect_parameters */
4951 struct gl_buffer_object
*DispatchIndirectBuffer
; /** < GL_ARB_compute_shader */
4953 struct gl_buffer_object
*CopyReadBuffer
; /**< GL_ARB_copy_buffer */
4954 struct gl_buffer_object
*CopyWriteBuffer
; /**< GL_ARB_copy_buffer */
4956 struct gl_buffer_object
*QueryBuffer
; /**< GL_ARB_query_buffer_object */
4959 * Current GL_ARB_uniform_buffer_object binding referenced by
4960 * GL_UNIFORM_BUFFER target for glBufferData, glMapBuffer, etc.
4962 struct gl_buffer_object
*UniformBuffer
;
4965 * Current GL_ARB_shader_storage_buffer_object binding referenced by
4966 * GL_SHADER_STORAGE_BUFFER target for glBufferData, glMapBuffer, etc.
4968 struct gl_buffer_object
*ShaderStorageBuffer
;
4971 * Array of uniform buffers for GL_ARB_uniform_buffer_object and GL 3.1.
4972 * This is set up using glBindBufferRange() or glBindBufferBase(). They are
4973 * associated with uniform blocks by glUniformBlockBinding()'s state in the
4976 struct gl_buffer_binding
4977 UniformBufferBindings
[MAX_COMBINED_UNIFORM_BUFFERS
];
4980 * Array of shader storage buffers for ARB_shader_storage_buffer_object
4981 * and GL 4.3. This is set up using glBindBufferRange() or
4982 * glBindBufferBase(). They are associated with shader storage blocks by
4983 * glShaderStorageBlockBinding()'s state in the shader program.
4985 struct gl_buffer_binding
4986 ShaderStorageBufferBindings
[MAX_COMBINED_SHADER_STORAGE_BUFFERS
];
4989 * Object currently associated with the GL_ATOMIC_COUNTER_BUFFER
4992 struct gl_buffer_object
*AtomicBuffer
;
4995 * Object currently associated w/ the GL_EXTERNAL_VIRTUAL_MEMORY_BUFFER_AMD
4998 struct gl_buffer_object
*ExternalVirtualMemoryBuffer
;
5001 * Array of atomic counter buffer binding points.
5003 struct gl_buffer_binding
5004 AtomicBufferBindings
[MAX_COMBINED_ATOMIC_BUFFERS
];
5007 * Array of image units for ARB_shader_image_load_store.
5009 struct gl_image_unit ImageUnits
[MAX_IMAGE_UNITS
];
5011 struct gl_subroutine_index_binding SubroutineIndex
[MESA_SHADER_STAGES
];
5014 struct gl_meta_state
*Meta
; /**< for "meta" operations */
5016 /* GL_EXT_framebuffer_object */
5017 struct gl_renderbuffer
*CurrentRenderbuffer
;
5019 GLenum16 ErrorValue
; /**< Last error code */
5022 * Recognize and silence repeated error debug messages in buggy apps.
5024 const char *ErrorDebugFmtString
;
5025 GLuint ErrorDebugCount
;
5027 /* GL_ARB_debug_output/GL_KHR_debug */
5028 simple_mtx_t DebugMutex
;
5029 struct gl_debug_state
*Debug
;
5031 GLenum16 RenderMode
; /**< either GL_RENDER, GL_SELECT, GL_FEEDBACK */
5032 GLbitfield NewState
; /**< bitwise-or of _NEW_* flags */
5033 uint64_t NewDriverState
; /**< bitwise-or of flags from DriverFlags */
5035 struct gl_driver_flags DriverFlags
;
5037 GLboolean ViewportInitialized
; /**< has viewport size been initialized? */
5039 GLbitfield varying_vp_inputs
; /**< mask of VERT_BIT_* flags */
5041 /** \name Derived state */
5042 GLbitfield _ImageTransferState
;/**< bitwise-or of IMAGE_*_BIT flags */
5043 GLfloat _EyeZDir
[3];
5044 GLfloat _ModelViewInvScale
; /* may be for model- or eyespace lighting */
5045 GLfloat _ModelViewInvScaleEyespace
; /* always factor defined in spec */
5046 GLboolean _NeedEyeCoords
;
5047 GLboolean _ForceEyeCoords
;
5049 GLuint TextureStateTimestamp
; /**< detect changes to shared state */
5051 struct gl_list_extensions
*ListExt
; /**< driver dlist extensions */
5053 /** \name For debugging/development only */
5055 GLboolean FirstTimeCurrent
;
5059 * False if this context was created without a config. This is needed
5060 * because the initial state of glDrawBuffers depends on this
5062 GLboolean HasConfig
;
5064 GLboolean TextureFormatSupported
[MESA_FORMAT_COUNT
];
5066 GLboolean RasterDiscard
; /**< GL_RASTERIZER_DISCARD */
5067 GLboolean IntelConservativeRasterization
; /**< GL_INTEL_CONSERVATIVE_RASTERIZATION */
5069 /** Does glVertexAttrib(0) alias glVertex()? */
5070 bool _AttribZeroAliasesVertex
;
5073 * When set, TileRasterOrderIncreasingX/Y control the order that a tiled
5074 * renderer's tiles should be excecuted, to meet the requirements of
5075 * GL_MESA_tile_raster_order.
5077 GLboolean TileRasterOrderFixed
;
5078 GLboolean TileRasterOrderIncreasingX
;
5079 GLboolean TileRasterOrderIncreasingY
;
5082 * \name Hooks for module contexts.
5084 * These will eventually live in the driver or elsewhere.
5087 void *swrast_context
;
5088 void *swsetup_context
;
5089 void *swtnl_context
;
5090 struct vbo_context
*vbo_context
;
5091 struct st_context
*st
;
5096 * \name NV_vdpau_interop
5099 const void *vdpDevice
;
5100 const void *vdpGetProcAddress
;
5101 struct set
*vdpSurfaces
;
5105 * Has this context observed a GPU reset in any context in the share group?
5107 * Once this field becomes true, it is never reset to false.
5109 GLboolean ShareGroupReset
;
5112 * \name OES_primitive_bounding_box
5114 * Stores the arguments to glPrimitiveBoundingBox
5116 GLfloat PrimitiveBoundingBox
[8];
5118 struct disk_cache
*Cache
;
5121 * \name GL_ARB_bindless_texture
5124 struct hash_table_u64
*ResidentTextureHandles
;
5125 struct hash_table_u64
*ResidentImageHandles
;
5130 * Information about memory usage. All sizes are in kilobytes.
5132 struct gl_memory_info
5134 unsigned total_device_memory
; /**< size of device memory, e.g. VRAM */
5135 unsigned avail_device_memory
; /**< free device memory at the moment */
5136 unsigned total_staging_memory
; /**< size of staging memory, e.g. GART */
5137 unsigned avail_staging_memory
; /**< free staging memory at the moment */
5138 unsigned device_memory_evicted
; /**< size of memory evicted (monotonic counter) */
5139 unsigned nr_device_memory_evictions
; /**< # of evictions (monotonic counter) */
5143 extern int MESA_VERBOSE
;
5144 extern int MESA_DEBUG_FLAGS
;
5146 # define MESA_VERBOSE 0
5147 # define MESA_DEBUG_FLAGS 0
5151 /** The MESA_VERBOSE var is a bitmask of these flags */
5154 VERBOSE_VARRAY
= 0x0001,
5155 VERBOSE_TEXTURE
= 0x0002,
5156 VERBOSE_MATERIAL
= 0x0004,
5157 VERBOSE_PIPELINE
= 0x0008,
5158 VERBOSE_DRIVER
= 0x0010,
5159 VERBOSE_STATE
= 0x0020,
5160 VERBOSE_API
= 0x0040,
5161 VERBOSE_DISPLAY_LIST
= 0x0100,
5162 VERBOSE_LIGHTING
= 0x0200,
5163 VERBOSE_PRIMS
= 0x0400,
5164 VERBOSE_VERTS
= 0x0800,
5165 VERBOSE_DISASSEM
= 0x1000,
5166 VERBOSE_DRAW
= 0x2000,
5167 VERBOSE_SWAPBUFFERS
= 0x4000
5171 /** The MESA_DEBUG_FLAGS var is a bitmask of these flags */
5174 DEBUG_SILENT
= (1 << 0),
5175 DEBUG_ALWAYS_FLUSH
= (1 << 1),
5176 DEBUG_INCOMPLETE_TEXTURE
= (1 << 2),
5177 DEBUG_INCOMPLETE_FBO
= (1 << 3),
5178 DEBUG_CONTEXT
= (1 << 4)
5185 #endif /* MTYPES_H */