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) % 32) - 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 GLenum16 _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
1024 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 GLenum16 sRGBDecode
; /**< GL_DECODE_EXT or GL_SKIP_DECODE_EXT */
1033 union gl_color_union BorderColor
; /**< Interpreted according to texture format */
1034 GLfloat MinLod
; /**< min lambda, OpenGL 1.2 */
1035 GLfloat MaxLod
; /**< max lambda, OpenGL 1.2 */
1036 GLfloat LodBias
; /**< OpenGL 1.4 */
1037 GLfloat MaxAnisotropy
; /**< GL_EXT_texture_filter_anisotropic */
1038 GLenum16 CompareMode
; /**< GL_ARB_shadow */
1039 GLenum16 CompareFunc
; /**< GL_ARB_shadow */
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 GLenum16 Target
; /**< GL_TEXTURE_1D, GL_TEXTURE_2D, etc. */
1058 GLenum16 DepthMode
; /**< GL_ARB_depth_texture */
1059 GLchar
*Label
; /**< GL_KHR_debug */
1061 struct gl_sampler_object Sampler
;
1063 gl_texture_index TargetIndex
; /**< The gl_texture_unit::CurrentTex index.
1064 Only valid when Target is valid. */
1065 GLfloat Priority
; /**< in [0,1] */
1066 GLint MaxLevel
; /**< max mipmap level (max=1000), OpenGL 1.2 */
1067 GLint BaseLevel
; /**< min mipmap level, OpenGL 1.2 */
1068 GLbyte _MaxLevel
; /**< actual max mipmap level (q in the spec) */
1069 GLfloat _MaxLambda
; /**< = _MaxLevel - BaseLevel (q - p in spec) */
1070 GLint CropRect
[4]; /**< GL_OES_draw_texture */
1071 GLenum Swizzle
[4]; /**< GL_EXT_texture_swizzle */
1072 GLushort _Swizzle
; /**< same as Swizzle, but SWIZZLE_* format */
1073 GLbyte ImmutableLevels
; /**< ES 3.0 / ARB_texture_view */
1074 GLboolean GenerateMipmap
; /**< GL_SGIS_generate_mipmap */
1075 GLboolean _BaseComplete
; /**< Is the base texture level valid? */
1076 GLboolean _MipmapComplete
; /**< Is the whole mipmap valid? */
1077 GLboolean _IsIntegerFormat
; /**< Does the texture store integer values? */
1078 GLboolean _RenderToTexture
; /**< Any rendering to this texture? */
1079 GLboolean Purgeable
; /**< Is the buffer purgeable under memory
1081 GLboolean Immutable
; /**< GL_ARB_texture_storage */
1082 GLboolean _IsFloat
; /**< GL_OES_float_texture */
1083 GLboolean _IsHalfFloat
; /**< GL_OES_half_float_texture */
1084 bool StencilSampling
; /**< Should we sample stencil instead of depth? */
1085 bool HandleAllocated
; /**< GL_ARB_bindless_texture */
1087 /** GL_OES_EGL_image_external */
1088 GLubyte RequiredTextureImageUnits
;
1090 GLubyte MinLevel
; /**< GL_ARB_texture_view */
1091 GLubyte NumLevels
; /**< GL_ARB_texture_view */
1092 GLushort MinLayer
; /**< GL_ARB_texture_view */
1093 GLushort NumLayers
; /**< GL_ARB_texture_view */
1095 /** GL_EXT_memory_object */
1096 GLenum16 TextureTiling
;
1098 /** GL_ARB_shader_image_load_store */
1099 GLenum16 ImageFormatCompatibilityType
;
1101 /** GL_ARB_texture_buffer_object */
1102 GLenum16 BufferObjectFormat
;
1103 /** Equivalent Mesa format for BufferObjectFormat. */
1104 mesa_format _BufferObjectFormat
;
1105 struct gl_buffer_object
*BufferObject
;
1107 /** GL_ARB_texture_buffer_range */
1108 GLintptr BufferOffset
;
1109 GLsizeiptr BufferSize
; /**< if this is -1, use BufferObject->Size instead */
1111 /** Actual texture images, indexed by [cube face] and [mipmap level] */
1112 struct gl_texture_image
*Image
[MAX_FACES
][MAX_TEXTURE_LEVELS
];
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 GLubyte ScaleShiftRGB
; /**< 0, 1 or 2 */
1138 GLubyte ScaleShiftA
; /**< 0, 1 or 2 */
1139 GLubyte _NumArgsRGB
; /**< Number of inputs used for the RGB combiner */
1140 GLubyte _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 GLbitfield8 _ModeBit
; /**< TEXGEN_x bit corresponding to Mode */
1272 GLfloat ObjectPlane
[4];
1273 GLfloat EyePlane
[4];
1278 * Sampler-related subset of a texture unit, like current texture objects.
1280 struct gl_texture_unit
1282 GLfloat LodBias
; /**< for biasing mipmap levels */
1284 /** Texture targets that have a non-default texture bound */
1285 GLbitfield _BoundTextures
;
1287 /** Current sampler object (GL_ARB_sampler_objects) */
1288 struct gl_sampler_object
*Sampler
;
1290 /** Current texture object pointers */
1291 struct gl_texture_object
*CurrentTex
[NUM_TEXTURE_TARGETS
];
1293 /** Points to highest priority, complete and enabled texture object */
1294 struct gl_texture_object
*_Current
;
1299 * Fixed-function-related subset of a texture unit, like enable flags,
1300 * texture environment/function/combiners, and texgen state.
1302 struct gl_fixedfunc_texture_unit
1304 GLbitfield16 Enabled
; /**< bitmask of TEXTURE_*_BIT flags */
1306 GLenum16 EnvMode
; /**< GL_MODULATE, GL_DECAL, GL_BLEND, etc. */
1307 GLclampf EnvColor
[4];
1308 GLfloat EnvColorUnclamped
[4];
1310 struct gl_texgen GenS
;
1311 struct gl_texgen GenT
;
1312 struct gl_texgen GenR
;
1313 struct gl_texgen GenQ
;
1314 GLbitfield8 TexGenEnabled
; /**< Bitwise-OR of [STRQ]_BIT values */
1315 GLbitfield8 _GenFlags
; /**< Bitwise-OR of Gen[STRQ]._ModeBit */
1318 * \name GL_EXT_texture_env_combine
1320 struct gl_tex_env_combine_state Combine
;
1323 * Derived state based on \c EnvMode and the \c BaseFormat of the
1324 * currently enabled texture.
1326 struct gl_tex_env_combine_state _EnvMode
;
1328 /** Current compressed TexEnv & Combine state */
1329 struct gl_tex_env_combine_packed _CurrentCombinePacked
;
1332 * Currently enabled combiner state. This will point to either
1333 * \c Combine or \c _EnvMode.
1335 struct gl_tex_env_combine_state
*_CurrentCombine
;
1340 * Texture attribute group (GL_TEXTURE_BIT).
1342 struct gl_texture_attrib
1344 struct gl_texture_object
*ProxyTex
[NUM_TEXTURE_TARGETS
];
1346 /** GL_ARB_texture_buffer_object */
1347 struct gl_buffer_object
*BufferObject
;
1349 GLuint CurrentUnit
; /**< GL_ACTIVE_TEXTURE */
1351 /** Texture coord units/sets used for fragment texturing */
1352 GLbitfield8 _EnabledCoordUnits
;
1354 /** Texture coord units that have texgen enabled */
1355 GLbitfield8 _TexGenEnabled
;
1357 /** Texture coord units that have non-identity matrices */
1358 GLbitfield8 _TexMatEnabled
;
1360 /** Bitwise-OR of all Texture.Unit[i]._GenFlags */
1361 GLbitfield8 _GenFlags
;
1363 /** Largest index of a texture unit with _Current != NULL. */
1364 GLshort _MaxEnabledTexImageUnit
;
1366 /** Largest index + 1 of texture units that have had any CurrentTex set. */
1367 GLubyte NumCurrentTexUsed
;
1369 /** GL_ARB_seamless_cubemap */
1370 GLboolean CubeMapSeamless
;
1372 struct gl_texture_unit Unit
[MAX_COMBINED_TEXTURE_IMAGE_UNITS
];
1373 struct gl_fixedfunc_texture_unit FixedFuncUnit
[MAX_TEXTURE_COORD_UNITS
];
1378 * Data structure representing a single clip plane (e.g. one of the elements
1379 * of the ctx->Transform.EyeUserPlane or ctx->Transform._ClipUserPlane array).
1381 typedef GLfloat gl_clip_plane
[4];
1385 * Transformation attribute group (GL_TRANSFORM_BIT).
1387 struct gl_transform_attrib
1389 GLenum16 MatrixMode
; /**< Matrix mode */
1390 gl_clip_plane EyeUserPlane
[MAX_CLIP_PLANES
]; /**< User clip planes */
1391 gl_clip_plane _ClipUserPlane
[MAX_CLIP_PLANES
]; /**< derived */
1392 GLbitfield ClipPlanesEnabled
; /**< on/off bitmask */
1393 GLboolean Normalize
; /**< Normalize all normals? */
1394 GLboolean RescaleNormals
; /**< GL_EXT_rescale_normal */
1395 GLboolean RasterPositionUnclipped
; /**< GL_IBM_rasterpos_clip */
1396 GLboolean DepthClamp
; /**< GL_ARB_depth_clamp */
1397 /** GL_ARB_clip_control */
1398 GLenum16 ClipOrigin
; /**< GL_LOWER_LEFT or GL_UPPER_LEFT */
1399 GLenum16 ClipDepthMode
;/**< GL_NEGATIVE_ONE_TO_ONE or GL_ZERO_TO_ONE */
1404 * Viewport attribute group (GL_VIEWPORT_BIT).
1406 struct gl_viewport_attrib
1408 GLfloat X
, Y
; /**< position */
1409 GLfloat Width
, Height
; /**< size */
1410 GLfloat Near
, Far
; /**< Depth buffer range */
1419 } gl_map_buffer_index
;
1423 * Fields describing a mapped buffer range.
1425 struct gl_buffer_mapping
1427 GLbitfield AccessFlags
; /**< Mask of GL_MAP_x_BIT flags */
1428 GLvoid
*Pointer
; /**< User-space address of mapping */
1429 GLintptr Offset
; /**< Mapped offset */
1430 GLsizeiptr Length
; /**< Mapped length */
1435 * Usages we've seen for a buffer object.
1439 USAGE_UNIFORM_BUFFER
= 0x1,
1440 USAGE_TEXTURE_BUFFER
= 0x2,
1441 USAGE_ATOMIC_COUNTER_BUFFER
= 0x4,
1442 USAGE_SHADER_STORAGE_BUFFER
= 0x8,
1443 USAGE_TRANSFORM_FEEDBACK_BUFFER
= 0x10,
1444 USAGE_PIXEL_PACK_BUFFER
= 0x20,
1445 USAGE_DISABLE_MINMAX_CACHE
= 0x40,
1450 * GL_ARB_vertex/pixel_buffer_object buffer object
1452 struct gl_buffer_object
1456 GLchar
*Label
; /**< GL_KHR_debug */
1457 GLenum16 Usage
; /**< GL_STREAM_DRAW_ARB, GL_STREAM_READ_ARB, etc. */
1458 GLbitfield StorageFlags
; /**< GL_MAP_PERSISTENT_BIT, etc. */
1459 GLsizeiptrARB Size
; /**< Size of buffer storage in bytes */
1460 GLubyte
*Data
; /**< Location of storage either in RAM or VRAM. */
1461 GLboolean DeletePending
; /**< true if buffer object is removed from the hash */
1462 GLboolean Written
; /**< Ever written to? (for debugging) */
1463 GLboolean Purgeable
; /**< Is the buffer purgeable under memory pressure? */
1464 GLboolean Immutable
; /**< GL_ARB_buffer_storage */
1465 gl_buffer_usage UsageHistory
; /**< How has this buffer been used so far? */
1467 /** Counters used for buffer usage warnings */
1468 GLuint NumSubDataCalls
;
1469 GLuint NumMapBufferWriteCalls
;
1471 struct gl_buffer_mapping Mappings
[MAP_COUNT
];
1473 /** Memoization of min/max index computations for static index buffers */
1474 simple_mtx_t MinMaxCacheMutex
;
1475 struct hash_table
*MinMaxCache
;
1476 unsigned MinMaxCacheHitIndices
;
1477 unsigned MinMaxCacheMissIndices
;
1478 bool MinMaxCacheDirty
;
1480 bool HandleAllocated
; /**< GL_ARB_bindless_texture */
1485 * Client pixel packing/unpacking attributes
1487 struct gl_pixelstore_attrib
1495 GLboolean SwapBytes
;
1497 GLboolean Invert
; /**< GL_MESA_pack_invert */
1498 GLint CompressedBlockWidth
; /**< GL_ARB_compressed_texture_pixel_storage */
1499 GLint CompressedBlockHeight
;
1500 GLint CompressedBlockDepth
;
1501 GLint CompressedBlockSize
;
1502 struct gl_buffer_object
*BufferObj
; /**< GL_ARB_pixel_buffer_object */
1507 * Enum for defining the mapping for the position/generic0 attribute.
1509 * Do not change the order of the values as these are used as
1514 ATTRIBUTE_MAP_MODE_IDENTITY
, /**< 1:1 mapping */
1515 ATTRIBUTE_MAP_MODE_POSITION
, /**< get position and generic0 from position */
1516 ATTRIBUTE_MAP_MODE_GENERIC0
, /**< get position and generic0 from generic0 */
1517 ATTRIBUTE_MAP_MODE_MAX
/**< for sizing arrays */
1518 } gl_attribute_map_mode
;
1522 * Attributes to describe a vertex array.
1524 * Contains the size, type, format and normalization flag,
1525 * along with the index of a vertex buffer binding point.
1527 * Note that the Stride field corresponds to VERTEX_ATTRIB_ARRAY_STRIDE
1528 * and is only present for backwards compatibility reasons.
1529 * Rendering always uses VERTEX_BINDING_STRIDE.
1530 * The gl*Pointer() functions will set VERTEX_ATTRIB_ARRAY_STRIDE
1531 * and VERTEX_BINDING_STRIDE to the same value, while
1532 * glBindVertexBuffer() will only set VERTEX_BINDING_STRIDE.
1534 struct gl_array_attributes
1536 /** Points to client array data. Not used when a VBO is bound */
1538 /** Offset of the first element relative to the binding offset */
1539 GLuint RelativeOffset
;
1540 GLshort Stride
; /**< Stride as specified with gl*Pointer() */
1541 GLenum16 Type
; /**< Datatype: GL_FLOAT, GL_INT, etc */
1542 GLenum16 Format
; /**< Default: GL_RGBA, but may be GL_BGRA */
1543 GLboolean Enabled
; /**< Whether the array is enabled */
1544 GLubyte Size
; /**< Components per element (1,2,3,4) */
1545 unsigned Normalized
:1; /**< Fixed-point values are normalized when converted to floats */
1546 unsigned Integer
:1; /**< Fixed-point values are not converted to floats */
1547 unsigned Doubles
:1; /**< double precision values are not converted to floats */
1548 unsigned _ElementSize
:8; /**< Size of each element in bytes */
1549 /** Index into gl_vertex_array_object::BufferBinding[] array */
1550 unsigned BufferBindingIndex
:6;
1555 * This describes the buffer object used for a vertex array (or
1556 * multiple vertex arrays). If BufferObj points to the default/null
1557 * buffer object, then the vertex array lives in user memory and not a VBO.
1559 struct gl_vertex_buffer_binding
1561 GLintptr Offset
; /**< User-specified offset */
1562 GLsizei Stride
; /**< User-specified stride */
1563 GLuint InstanceDivisor
; /**< GL_ARB_instanced_arrays */
1564 struct gl_buffer_object
*BufferObj
; /**< GL_ARB_vertex_buffer_object */
1565 GLbitfield _BoundArrays
; /**< Arrays bound to this binding point */
1570 * Vertex array information which is derived from gl_array_attributes
1571 * and gl_vertex_buffer_binding information. Used by the VBO module and
1574 struct gl_vertex_array
1576 /** Vertex attribute array */
1577 const struct gl_array_attributes
*VertexAttrib
;
1578 /** Vertex buffer binding */
1579 const struct gl_vertex_buffer_binding
*BufferBinding
;
1584 * A representation of "Vertex Array Objects" (VAOs) from OpenGL 3.1+ /
1585 * the GL_ARB_vertex_array_object extension.
1587 struct gl_vertex_array_object
1589 /** Name of the VAO as received from glGenVertexArray. */
1594 GLchar
*Label
; /**< GL_KHR_debug */
1597 * Has this array object been bound?
1599 GLboolean EverBound
;
1602 * Marked to true if the object is shared between contexts and immutable.
1603 * Then reference counting is done using atomics and thread safe.
1604 * Is used for dlist VAOs.
1606 bool SharedAndImmutable
;
1608 /** Vertex attribute arrays */
1609 struct gl_array_attributes VertexAttrib
[VERT_ATTRIB_MAX
];
1611 /** Vertex buffer bindings */
1612 struct gl_vertex_buffer_binding BufferBinding
[VERT_ATTRIB_MAX
];
1614 /** Mask indicating which vertex arrays have vertex buffer associated. */
1615 GLbitfield VertexAttribBufferMask
;
1617 /** Mask of VERT_BIT_* values indicating which arrays are enabled */
1618 GLbitfield _Enabled
;
1620 /** Denotes the way the position/generic0 attribute is mapped */
1621 gl_attribute_map_mode _AttributeMapMode
;
1623 /** Mask of VERT_BIT_* values indicating changed/dirty arrays */
1624 GLbitfield NewArrays
;
1626 /** The index buffer (also known as the element array buffer in OpenGL). */
1627 struct gl_buffer_object
*IndexBufferObj
;
1632 * Enum for the OpenGL APIs we know about and may support.
1634 * NOTE: This must match the api_enum table in
1635 * src/mesa/main/get_hash_generator.py
1639 API_OPENGL_COMPAT
, /* legacy / compatibility contexts */
1643 API_OPENGL_LAST
= API_OPENGL_CORE
1648 * Vertex array state
1650 struct gl_array_attrib
1652 /** Currently bound array object. */
1653 struct gl_vertex_array_object
*VAO
;
1655 /** The default vertex array object */
1656 struct gl_vertex_array_object
*DefaultVAO
;
1658 /** The last VAO accessed by a DSA function */
1659 struct gl_vertex_array_object
*LastLookedUpVAO
;
1661 /** Array objects (GL_ARB_vertex_array_object) */
1662 struct _mesa_HashTable
*Objects
;
1664 GLint ActiveTexture
; /**< Client Active Texture */
1665 GLuint LockFirst
; /**< GL_EXT_compiled_vertex_array */
1666 GLuint LockCount
; /**< GL_EXT_compiled_vertex_array */
1669 * \name Primitive restart controls
1671 * Primitive restart is enabled if either \c PrimitiveRestart or
1672 * \c PrimitiveRestartFixedIndex is set.
1675 GLboolean PrimitiveRestart
;
1676 GLboolean PrimitiveRestartFixedIndex
;
1677 GLboolean _PrimitiveRestart
;
1678 GLuint RestartIndex
;
1681 /* GL_ARB_vertex_buffer_object */
1682 struct gl_buffer_object
*ArrayBufferObj
;
1685 * Vertex array object that is used with the currently active draw command.
1686 * The _DrawVAO is either set to the currently bound VAO for array type
1687 * draws or to internal VAO's set up by the vbo module to execute immediate
1688 * mode or display list draws.
1690 struct gl_vertex_array_object
*_DrawVAO
;
1692 * The VERT_BIT_* bits effectively enabled from the current _DrawVAO.
1693 * This is always a subset of _mesa_get_vao_vp_inputs(_DrawVAO)
1694 * but may omit those arrays that shall not be referenced by the current
1695 * gl_vertex_program_state::_VPMode. For example the generic attributes are
1696 * maked out form the _DrawVAO's enabled arrays when a fixed function
1697 * array draw is executed.
1699 GLbitfield _DrawVAOEnabledAttribs
;
1701 * Initially or if the VAO referenced by _DrawVAO is deleted the _DrawVAO
1702 * pointer is set to the _EmptyVAO which is just an empty VAO all the time.
1704 struct gl_vertex_array_object
*_EmptyVAO
;
1707 * Vertex arrays as consumed by a driver.
1708 * The array pointer is set up only by the VBO module.
1710 const struct gl_vertex_array
*_DrawArrays
; /**< 0..VERT_ATTRIB_MAX-1 */
1712 /** Legal array datatypes and the API for which they have been computed */
1713 GLbitfield LegalTypesMask
;
1714 gl_api LegalTypesMaskAPI
;
1719 * Feedback buffer state
1724 GLbitfield _Mask
; /**< FB_* bits */
1732 * Selection buffer state
1736 GLuint
*Buffer
; /**< selection buffer */
1737 GLuint BufferSize
; /**< size of the selection buffer */
1738 GLuint BufferCount
; /**< number of values in the selection buffer */
1739 GLuint Hits
; /**< number of records in the selection buffer */
1740 GLuint NameStackDepth
; /**< name stack depth */
1741 GLuint NameStack
[MAX_NAME_STACK_DEPTH
]; /**< name stack */
1742 GLboolean HitFlag
; /**< hit flag */
1743 GLfloat HitMinZ
; /**< minimum hit depth */
1744 GLfloat HitMaxZ
; /**< maximum hit depth */
1749 * 1-D Evaluator control points
1753 GLuint Order
; /**< Number of control points */
1754 GLfloat u1
, u2
, du
; /**< u1, u2, 1.0/(u2-u1) */
1755 GLfloat
*Points
; /**< Points to contiguous control points */
1760 * 2-D Evaluator control points
1764 GLuint Uorder
; /**< Number of control points in U dimension */
1765 GLuint Vorder
; /**< Number of control points in V dimension */
1768 GLfloat
*Points
; /**< Points to contiguous control points */
1773 * All evaluator control point state
1775 struct gl_evaluators
1781 struct gl_1d_map Map1Vertex3
;
1782 struct gl_1d_map Map1Vertex4
;
1783 struct gl_1d_map Map1Index
;
1784 struct gl_1d_map Map1Color4
;
1785 struct gl_1d_map Map1Normal
;
1786 struct gl_1d_map Map1Texture1
;
1787 struct gl_1d_map Map1Texture2
;
1788 struct gl_1d_map Map1Texture3
;
1789 struct gl_1d_map Map1Texture4
;
1796 struct gl_2d_map Map2Vertex3
;
1797 struct gl_2d_map Map2Vertex4
;
1798 struct gl_2d_map Map2Index
;
1799 struct gl_2d_map Map2Color4
;
1800 struct gl_2d_map Map2Normal
;
1801 struct gl_2d_map Map2Texture1
;
1802 struct gl_2d_map Map2Texture2
;
1803 struct gl_2d_map Map2Texture3
;
1804 struct gl_2d_map Map2Texture4
;
1809 struct gl_transform_feedback_varying_info
1820 * Per-output info vertex shaders for transform feedback.
1822 struct gl_transform_feedback_output
1824 uint32_t OutputRegister
;
1825 uint32_t OutputBuffer
;
1826 uint32_t NumComponents
;
1829 /** offset (in DWORDs) of this output within the interleaved structure */
1833 * Offset into the output register of the data to output. For example,
1834 * if NumComponents is 2 and ComponentOffset is 1, then the data to
1835 * offset is in the y and z components of the output register.
1837 uint32_t ComponentOffset
;
1841 struct gl_transform_feedback_buffer
1845 uint32_t NumVaryings
;
1848 * Total number of components stored in each buffer. This may be used by
1849 * hardware back-ends to determine the correct stride when interleaving
1850 * multiple transform feedback outputs in the same buffer.
1855 * Which transform feedback stream this buffer binding is associated with.
1861 /** Post-link transform feedback info. */
1862 struct gl_transform_feedback_info
1864 unsigned NumOutputs
;
1866 /* Bitmask of active buffer indices. */
1867 unsigned ActiveBuffers
;
1869 struct gl_transform_feedback_output
*Outputs
;
1871 /** Transform feedback varyings used for the linking of this shader program.
1873 * Use for glGetTransformFeedbackVarying().
1875 struct gl_transform_feedback_varying_info
*Varyings
;
1878 struct gl_transform_feedback_buffer Buffers
[MAX_FEEDBACK_BUFFERS
];
1883 * Transform feedback object state
1885 struct gl_transform_feedback_object
1887 GLuint Name
; /**< AKA the object ID */
1889 GLchar
*Label
; /**< GL_KHR_debug */
1890 GLboolean Active
; /**< Is transform feedback enabled? */
1891 GLboolean Paused
; /**< Is transform feedback paused? */
1892 GLboolean EndedAnytime
; /**< Has EndTransformFeedback been called
1894 GLboolean EverBound
; /**< Has this object been bound? */
1897 * GLES: if Active is true, remaining number of primitives which can be
1898 * rendered without overflow. This is necessary to track because GLES
1899 * requires us to generate INVALID_OPERATION if a call to glDrawArrays or
1900 * glDrawArraysInstanced would overflow transform feedback buffers.
1901 * Undefined if Active is false.
1903 * Not tracked for desktop GL since it's unnecessary.
1905 unsigned GlesRemainingPrims
;
1908 * The program active when BeginTransformFeedback() was called.
1909 * When active and unpaused, this equals ctx->Shader.CurrentProgram[stage],
1910 * where stage is the pipeline stage that is the source of data for
1911 * transform feedback.
1913 struct gl_program
*program
;
1915 /** The feedback buffers */
1916 GLuint BufferNames
[MAX_FEEDBACK_BUFFERS
];
1917 struct gl_buffer_object
*Buffers
[MAX_FEEDBACK_BUFFERS
];
1919 /** Start of feedback data in dest buffer */
1920 GLintptr Offset
[MAX_FEEDBACK_BUFFERS
];
1923 * Max data to put into dest buffer (in bytes). Computed based on
1924 * RequestedSize and the actual size of the buffer.
1926 GLsizeiptr Size
[MAX_FEEDBACK_BUFFERS
];
1929 * Size that was specified when the buffer was bound. If the buffer was
1930 * bound with glBindBufferBase() or glBindBufferOffsetEXT(), this value is
1933 GLsizeiptr RequestedSize
[MAX_FEEDBACK_BUFFERS
];
1938 * Context state for transform feedback.
1940 struct gl_transform_feedback_state
1942 GLenum16 Mode
; /**< GL_POINTS, GL_LINES or GL_TRIANGLES */
1944 /** The general binding point (GL_TRANSFORM_FEEDBACK_BUFFER) */
1945 struct gl_buffer_object
*CurrentBuffer
;
1947 /** The table of all transform feedback objects */
1948 struct _mesa_HashTable
*Objects
;
1950 /** The current xform-fb object (GL_TRANSFORM_FEEDBACK_BINDING) */
1951 struct gl_transform_feedback_object
*CurrentObject
;
1953 /** The default xform-fb object (Name==0) */
1954 struct gl_transform_feedback_object
*DefaultObject
;
1959 * A "performance monitor" as described in AMD_performance_monitor.
1961 struct gl_perf_monitor_object
1965 /** True if the monitor is currently active (Begin called but not End). */
1969 * True if the monitor has ended.
1971 * This is distinct from !Active because it may never have began.
1976 * A list of groups with currently active counters.
1978 * ActiveGroups[g] == n if there are n counters active from group 'g'.
1980 unsigned *ActiveGroups
;
1983 * An array of bitsets, subscripted by group ID, then indexed by counter ID.
1985 * Checking whether counter 'c' in group 'g' is active can be done via:
1987 * BITSET_TEST(ActiveCounters[g], c)
1989 GLuint
**ActiveCounters
;
1993 union gl_perf_monitor_counter_value
2001 struct gl_perf_monitor_counter
2003 /** Human readable name for the counter. */
2007 * Data type of the counter. Valid values are FLOAT, UNSIGNED_INT,
2008 * UNSIGNED_INT64_AMD, and PERCENTAGE_AMD.
2012 /** Minimum counter value. */
2013 union gl_perf_monitor_counter_value Minimum
;
2015 /** Maximum counter value. */
2016 union gl_perf_monitor_counter_value Maximum
;
2020 struct gl_perf_monitor_group
2022 /** Human readable name for the group. */
2026 * Maximum number of counters in this group which can be active at the
2029 GLuint MaxActiveCounters
;
2031 /** Array of counters within this group. */
2032 const struct gl_perf_monitor_counter
*Counters
;
2038 * A query object instance as described in INTEL_performance_query.
2040 * NB: We want to keep this and the corresponding backend structure
2041 * relatively lean considering that applications may expect to
2042 * allocate enough objects to be able to query around all draw calls
2045 struct gl_perf_query_object
2047 GLuint Id
; /**< hash table ID/name */
2048 unsigned Used
:1; /**< has been used for 1 or more queries */
2049 unsigned Active
:1; /**< inside Begin/EndPerfQuery */
2050 unsigned Ready
:1; /**< result is ready? */
2055 * Context state for AMD_performance_monitor.
2057 struct gl_perf_monitor_state
2059 /** Array of performance monitor groups (indexed by group ID) */
2060 const struct gl_perf_monitor_group
*Groups
;
2063 /** The table of all performance monitors. */
2064 struct _mesa_HashTable
*Monitors
;
2069 * Context state for INTEL_performance_query.
2071 struct gl_perf_query_state
2073 struct _mesa_HashTable
*Objects
; /**< The table of all performance query objects */
2078 * A bindless sampler object.
2080 struct gl_bindless_sampler
2082 /** Texture unit (set by glUniform1()). */
2085 /** Whether this bindless sampler is bound to a unit. */
2088 /** Texture Target (TEXTURE_1D/2D/3D/etc_INDEX). */
2089 gl_texture_index target
;
2091 /** Pointer to the base of the data. */
2097 * A bindless image object.
2099 struct gl_bindless_image
2101 /** Image unit (set by glUniform1()). */
2104 /** Whether this bindless image is bound to a unit. */
2107 /** Access qualifier (GL_READ_WRITE, GL_READ_ONLY, GL_WRITE_ONLY) */
2110 /** Pointer to the base of the data. */
2116 * Names of the various vertex/fragment program register files, etc.
2118 * NOTE: first four tokens must fit into 2 bits (see t_vb_arbprogram.c)
2119 * All values should fit in a 4-bit field.
2121 * NOTE: PROGRAM_STATE_VAR, PROGRAM_CONSTANT, and PROGRAM_UNIFORM can all be
2122 * considered to be "uniform" variables since they can only be set outside
2123 * glBegin/End. They're also all stored in the same Parameters array.
2127 PROGRAM_TEMPORARY
, /**< machine->Temporary[] */
2128 PROGRAM_ARRAY
, /**< Arrays & Matrixes */
2129 PROGRAM_INPUT
, /**< machine->Inputs[] */
2130 PROGRAM_OUTPUT
, /**< machine->Outputs[] */
2131 PROGRAM_STATE_VAR
, /**< gl_program->Parameters[] */
2132 PROGRAM_CONSTANT
, /**< gl_program->Parameters[] */
2133 PROGRAM_UNIFORM
, /**< gl_program->Parameters[] */
2134 PROGRAM_WRITE_ONLY
, /**< A dummy, write-only register */
2135 PROGRAM_ADDRESS
, /**< machine->AddressReg */
2136 PROGRAM_SAMPLER
, /**< for shader samplers, compile-time only */
2137 PROGRAM_SYSTEM_VALUE
,/**< InstanceId, PrimitiveID, etc. */
2138 PROGRAM_UNDEFINED
, /**< Invalid/TBD value */
2139 PROGRAM_IMMEDIATE
, /**< Immediate value, used by TGSI */
2140 PROGRAM_BUFFER
, /**< for shader buffers, compile-time only */
2141 PROGRAM_MEMORY
, /**< for shared, global and local memory */
2142 PROGRAM_IMAGE
, /**< for shader images, compile-time only */
2143 PROGRAM_HW_ATOMIC
, /**< for hw atomic counters, compile-time only */
2149 * Current vertex processing mode: fixed function vs. shader.
2150 * In reality, fixed function is probably implemented by a shader but that's
2151 * not what we care about here.
2155 VP_MODE_FF
, /**< legacy / fixed function */
2156 VP_MODE_SHADER
, /**< ARB vertex program or GLSL vertex shader */
2157 VP_MODE_MAX
/**< for sizing arrays */
2158 } gl_vertex_processing_mode
;
2162 * Base class for any kind of program object
2166 /** FIXME: This must be first until we split shader_info from nir_shader */
2167 struct shader_info info
;
2171 GLubyte
*String
; /**< Null-terminated program text */
2173 /** GL_VERTEX/FRAGMENT_PROGRAM_ARB, GL_GEOMETRY_PROGRAM_NV */
2175 GLenum16 Format
; /**< String encoding format */
2177 GLboolean _Used
; /**< Ever used for drawing? Used for debugging */
2179 struct nir_shader
*nir
;
2181 /* Saved and restored with metadata. Freed with ralloc. */
2182 void *driver_cache_blob
;
2183 size_t driver_cache_blob_size
;
2185 bool is_arb_asm
; /** Is this an ARB assembly-style program */
2187 /** Is this program written to on disk shader cache */
2188 bool program_written_to_cache
;
2190 /** Subset of OutputsWritten outputs written with non-zero index. */
2191 GLbitfield64 SecondaryOutputsWritten
;
2192 /** TEXTURE_x_BIT bitmask */
2193 GLbitfield16 TexturesUsed
[MAX_COMBINED_TEXTURE_IMAGE_UNITS
];
2194 /** Bitfield of which samplers are used */
2195 GLbitfield SamplersUsed
;
2196 /** Texture units used for shadow sampling. */
2197 GLbitfield ShadowSamplers
;
2198 /** Texture units used for samplerExternalOES */
2199 GLbitfield ExternalSamplersUsed
;
2201 /* Fragement shader only fields */
2202 GLboolean OriginUpperLeft
;
2203 GLboolean PixelCenterInteger
;
2205 /** Named parameters, constants, etc. from program text */
2206 struct gl_program_parameter_list
*Parameters
;
2208 /** Map from sampler unit to texture unit (set by glUniform1i()) */
2209 GLubyte SamplerUnits
[MAX_SAMPLERS
];
2211 /* FIXME: We should be able to make this struct a union. However some
2212 * drivers (i915/fragment_programs, swrast/prog_execute) mix the use of
2213 * these fields, we should fix this.
2216 /** Fields used by GLSL programs */
2218 /** Data shared by gl_program and gl_shader_program */
2219 struct gl_shader_program_data
*data
;
2221 struct gl_active_atomic_buffer
**AtomicBuffers
;
2223 /** Post-link transform feedback info. */
2224 struct gl_transform_feedback_info
*LinkedTransformFeedback
;
2227 * Number of types for subroutine uniforms.
2229 GLuint NumSubroutineUniformTypes
;
2232 * Subroutine uniform remap table
2233 * based on the program level uniform remap table.
2235 GLuint NumSubroutineUniforms
; /* non-sparse total */
2236 GLuint NumSubroutineUniformRemapTable
;
2237 struct gl_uniform_storage
**SubroutineUniformRemapTable
;
2240 * Num of subroutine functions for this stage and storage for them.
2242 GLuint NumSubroutineFunctions
;
2243 GLuint MaxSubroutineFunctionIndex
;
2244 struct gl_subroutine_function
*SubroutineFunctions
;
2247 * Map from image uniform index to image unit (set by glUniform1i())
2249 * An image uniform index is associated with each image uniform by
2250 * the linker. The image index associated with each uniform is
2251 * stored in the \c gl_uniform_storage::image field.
2253 GLubyte ImageUnits
[MAX_IMAGE_UNIFORMS
];
2256 * Access qualifier specified in the shader for each image uniform
2257 * index. Either \c GL_READ_ONLY, \c GL_WRITE_ONLY or \c
2260 * It may be different, though only more strict than the value of
2261 * \c gl_image_unit::Access for the corresponding image unit.
2263 GLenum16 ImageAccess
[MAX_IMAGE_UNIFORMS
];
2265 struct gl_uniform_block
**UniformBlocks
;
2266 struct gl_uniform_block
**ShaderStorageBlocks
;
2268 /** Which texture target is being sampled
2269 * (TEXTURE_1D/2D/3D/etc_INDEX)
2271 GLubyte SamplerTargets
[MAX_SAMPLERS
];
2274 * Number of samplers declared with the bindless_sampler layout
2275 * qualifier as specified by ARB_bindless_texture.
2277 GLuint NumBindlessSamplers
;
2278 GLboolean HasBoundBindlessSampler
;
2279 struct gl_bindless_sampler
*BindlessSamplers
;
2282 * Number of images declared with the bindless_image layout qualifier
2283 * as specified by ARB_bindless_texture.
2285 GLuint NumBindlessImages
;
2286 GLboolean HasBoundBindlessImage
;
2287 struct gl_bindless_image
*BindlessImages
;
2292 * A bitmask of gl_advanced_blend_mode values
2294 GLbitfield BlendSupport
;
2299 /** ARB assembly-style program fields */
2301 struct prog_instruction
*Instructions
;
2304 * Local parameters used by the program.
2306 * It's dynamically allocated because it is rarely used (just
2307 * assembly-style programs), and MAX_PROGRAM_LOCAL_PARAMS entries
2308 * once it's allocated.
2310 GLfloat (*LocalParams
)[4];
2312 /** Bitmask of which register files are read/written with indirect
2313 * addressing. Mask of (1 << PROGRAM_x) bits.
2315 GLbitfield IndirectRegisterFiles
;
2317 /** Logical counts */
2319 GLuint NumInstructions
;
2320 GLuint NumTemporaries
;
2321 GLuint NumParameters
;
2322 GLuint NumAttributes
;
2323 GLuint NumAddressRegs
;
2324 GLuint NumAluInstructions
;
2325 GLuint NumTexInstructions
;
2326 GLuint NumTexIndirections
;
2328 /** Native, actual h/w counts */
2330 GLuint NumNativeInstructions
;
2331 GLuint NumNativeTemporaries
;
2332 GLuint NumNativeParameters
;
2333 GLuint NumNativeAttributes
;
2334 GLuint NumNativeAddressRegs
;
2335 GLuint NumNativeAluInstructions
;
2336 GLuint NumNativeTexInstructions
;
2337 GLuint NumNativeTexIndirections
;
2340 /** Used by ARB assembly-style programs. Can only be true for vertex
2343 GLboolean IsPositionInvariant
;
2350 * State common to vertex and fragment programs.
2352 struct gl_program_state
2354 GLint ErrorPos
; /* GL_PROGRAM_ERROR_POSITION_ARB/NV */
2355 const char *ErrorString
; /* GL_PROGRAM_ERROR_STRING_ARB/NV */
2360 * Context state for vertex programs.
2362 struct gl_vertex_program_state
2364 GLboolean Enabled
; /**< User-set GL_VERTEX_PROGRAM_ARB/NV flag */
2365 GLboolean PointSizeEnabled
; /**< GL_VERTEX_PROGRAM_POINT_SIZE_ARB/NV */
2366 GLboolean TwoSideEnabled
; /**< GL_VERTEX_PROGRAM_TWO_SIDE_ARB/NV */
2367 /** Should fixed-function T&L be implemented with a vertex prog? */
2368 GLboolean _MaintainTnlProgram
;
2370 struct gl_program
*Current
; /**< User-bound vertex program */
2372 /** Currently enabled and valid vertex program (including internal
2373 * programs, user-defined vertex programs and GLSL vertex shaders).
2374 * This is the program we must use when rendering.
2376 struct gl_program
*_Current
;
2378 GLfloat Parameters
[MAX_PROGRAM_ENV_PARAMS
][4]; /**< Env params */
2380 /** Program to emulate fixed-function T&L (see above) */
2381 struct gl_program
*_TnlProgram
;
2383 /** Cache of fixed-function programs */
2384 struct gl_program_cache
*Cache
;
2386 GLboolean _Overriden
;
2389 * If we have a vertex program, a TNL program or no program at all.
2390 * Note that this value should be kept up to date all the time,
2391 * nevertheless its correctness is asserted in _mesa_update_state.
2392 * The reason is to avoid calling _mesa_update_state twice we need
2393 * this value on draw *before* actually calling _mesa_update_state.
2394 * Also it should need to get recomputed only on changes to the
2395 * vertex program which are heavyweight already.
2397 gl_vertex_processing_mode _VPMode
;
2401 * Context state for tessellation control programs.
2403 struct gl_tess_ctrl_program_state
2405 /** Currently bound and valid shader. */
2406 struct gl_program
*_Current
;
2408 GLint patch_vertices
;
2409 GLfloat patch_default_outer_level
[4];
2410 GLfloat patch_default_inner_level
[2];
2414 * Context state for tessellation evaluation programs.
2416 struct gl_tess_eval_program_state
2418 /** Currently bound and valid shader. */
2419 struct gl_program
*_Current
;
2423 * Context state for geometry programs.
2425 struct gl_geometry_program_state
2428 * Currently enabled and valid program (including internal programs
2429 * and compiled shader programs).
2431 struct gl_program
*_Current
;
2435 * Context state for fragment programs.
2437 struct gl_fragment_program_state
2439 GLboolean Enabled
; /**< User-set fragment program enable flag */
2440 /** Should fixed-function texturing be implemented with a fragment prog? */
2441 GLboolean _MaintainTexEnvProgram
;
2443 struct gl_program
*Current
; /**< User-bound fragment program */
2446 * Currently enabled and valid fragment program (including internal
2447 * programs, user-defined fragment programs and GLSL fragment shaders).
2448 * This is the program we must use when rendering.
2450 struct gl_program
*_Current
;
2452 GLfloat Parameters
[MAX_PROGRAM_ENV_PARAMS
][4]; /**< Env params */
2454 /** Program to emulate fixed-function texture env/combine (see above) */
2455 struct gl_program
*_TexEnvProgram
;
2457 /** Cache of fixed-function programs */
2458 struct gl_program_cache
*Cache
;
2463 * Context state for compute programs.
2465 struct gl_compute_program_state
2467 /** Currently enabled and valid program (including internal programs
2468 * and compiled shader programs).
2470 struct gl_program
*_Current
;
2475 * ATI_fragment_shader runtime state
2478 struct atifs_instruction
;
2479 struct atifs_setupinst
;
2482 * ATI fragment shader
2484 struct ati_fragment_shader
2488 struct atifs_instruction
*Instructions
[2];
2489 struct atifs_setupinst
*SetupInst
[2];
2490 GLfloat Constants
[8][4];
2491 GLbitfield LocalConstDef
; /**< Indicates which constants have been set */
2492 GLubyte numArithInstr
[2];
2493 GLubyte regsAssigned
[2];
2494 GLubyte NumPasses
; /**< 1 or 2 */
2496 * Current compile stage: 0 setup pass1, 1 arith pass1,
2497 * 2 setup pass2, 3 arith pass2.
2500 GLubyte last_optype
;
2501 GLboolean interpinp1
;
2504 * Array of 2 bit values for each tex unit to remember whether
2505 * STR or STQ swizzle was used
2508 struct gl_program
*Program
;
2512 * Context state for GL_ATI_fragment_shader
2514 struct gl_ati_fragment_shader_state
2517 GLboolean Compiling
;
2518 GLfloat GlobalConstants
[8][4];
2519 struct ati_fragment_shader
*Current
;
2523 * Shader subroutine function definition
2525 struct gl_subroutine_function
2529 int num_compat_types
;
2530 const struct glsl_type
**types
;
2534 * Shader information needed by both gl_shader and gl_linked shader.
2536 struct gl_shader_info
2539 * Tessellation Control shader state from layout qualifiers.
2543 * 0 - vertices not declared in shader, or
2544 * 1 .. GL_MAX_PATCH_VERTICES
2550 * Tessellation Evaluation shader state from layout qualifiers.
2554 * GL_TRIANGLES, GL_QUADS, GL_ISOLINES or PRIM_UNKNOWN if it's not set
2557 GLenum16 PrimitiveMode
;
2559 enum gl_tess_spacing Spacing
;
2562 * GL_CW, GL_CCW, or 0 if it's not set in this shader.
2564 GLenum16 VertexOrder
;
2566 * 1, 0, or -1 if it's not set in this shader.
2572 * Geometry shader state from GLSL 1.50 layout qualifiers.
2577 * 0 - Invocations count not declared in shader, or
2578 * 1 .. MAX_GEOMETRY_SHADER_INVOCATIONS
2582 * GL_POINTS, GL_LINES, GL_LINES_ADJACENCY, GL_TRIANGLES, or
2583 * GL_TRIANGLES_ADJACENCY, or PRIM_UNKNOWN if it's not set in this
2588 * GL_POINTS, GL_LINE_STRIP or GL_TRIANGLE_STRIP, or PRIM_UNKNOWN if
2589 * it's not set in this shader.
2591 GLenum16 OutputType
;
2595 * Compute shader state from ARB_compute_shader and
2596 * ARB_compute_variable_group_size layout qualifiers.
2600 * Size specified using local_size_{x,y,z}, or all 0's to indicate that
2601 * it's not set in this shader.
2603 unsigned LocalSize
[3];
2606 * Whether a variable work group size has been specified as defined by
2607 * ARB_compute_variable_group_size.
2609 bool LocalSizeVariable
;
2614 * A linked GLSL shader object.
2616 struct gl_linked_shader
2618 gl_shader_stage Stage
;
2621 unsigned SourceChecksum
;
2624 struct gl_program
*Program
; /**< Post-compile assembly code */
2627 * \name Sampler tracking
2629 * \note Each of these fields is only set post-linking.
2632 GLbitfield shadow_samplers
; /**< Samplers used for shadow sampling. */
2636 * Number of default uniform block components used by this shader.
2638 * This field is only set post-linking.
2640 unsigned num_uniform_components
;
2643 * Number of combined uniform components used by this shader.
2645 * This field is only set post-linking. It is the sum of the uniform block
2646 * sizes divided by sizeof(float), and num_uniform_compoennts.
2648 unsigned num_combined_uniform_components
;
2650 struct exec_list
*ir
;
2651 struct exec_list
*packed_varyings
;
2652 struct exec_list
*fragdata_arrays
;
2653 struct glsl_symbol_table
*symbols
;
2656 * ARB_gl_spirv related data.
2658 * This is actually a reference to the gl_shader::spirv_data, which
2659 * stores information that is also needed during linking.
2661 struct gl_shader_spirv_data
*spirv_data
;
2666 * Compile status enum. COMPILE_SKIPPED is used to indicate the compile
2667 * was skipped due to the shader matching one that's been seen before by
2668 * the on-disk cache.
2670 enum gl_compile_status
2672 COMPILE_FAILURE
= 0,
2679 * A GLSL shader object.
2683 /** GL_FRAGMENT_SHADER || GL_VERTEX_SHADER || GL_GEOMETRY_SHADER_ARB ||
2684 * GL_TESS_CONTROL_SHADER || GL_TESS_EVALUATION_SHADER.
2685 * Must be the first field.
2688 gl_shader_stage Stage
;
2689 GLuint Name
; /**< AKA the handle */
2690 GLint RefCount
; /**< Reference count */
2691 GLchar
*Label
; /**< GL_KHR_debug */
2692 unsigned char sha1
[20]; /**< SHA1 hash of pre-processed source */
2693 GLboolean DeletePending
;
2694 bool IsES
; /**< True if this shader uses GLSL ES */
2696 enum gl_compile_status CompileStatus
;
2699 unsigned SourceChecksum
; /**< for debug/logging purposes */
2701 const GLchar
*Source
; /**< Source code string */
2703 const GLchar
*FallbackSource
; /**< Fallback string used by on-disk cache*/
2707 unsigned Version
; /**< GLSL version used for linking */
2710 * A bitmask of gl_advanced_blend_mode values
2712 GLbitfield BlendSupport
;
2714 struct exec_list
*ir
;
2715 struct glsl_symbol_table
*symbols
;
2718 * Whether early fragment tests are enabled as defined by
2719 * ARB_shader_image_load_store.
2721 bool EarlyFragmentTests
;
2723 bool ARB_fragment_coord_conventions_enable
;
2725 bool redeclares_gl_fragcoord
;
2726 bool uses_gl_fragcoord
;
2728 bool PostDepthCoverage
;
2732 * Fragment shader state from GLSL 1.50 layout qualifiers.
2734 bool origin_upper_left
;
2735 bool pixel_center_integer
;
2738 * Whether bindless_sampler/bindless_image, and respectively
2739 * bound_sampler/bound_image are declared at global scope as defined by
2740 * ARB_bindless_texture.
2742 bool bindless_sampler
;
2743 bool bindless_image
;
2747 /** Global xfb_stride out qualifier if any */
2748 GLuint TransformFeedbackBufferStride
[MAX_FEEDBACK_BUFFERS
];
2750 struct gl_shader_info info
;
2752 /* ARB_gl_spirv related data */
2753 struct gl_shader_spirv_data
*spirv_data
;
2757 struct gl_uniform_buffer_variable
2762 * Name of the uniform as seen by glGetUniformIndices.
2764 * glGetUniformIndices requires that the block instance index \b not be
2765 * present in the name of queried uniforms.
2768 * \c gl_uniform_buffer_variable::IndexName and
2769 * \c gl_uniform_buffer_variable::Name may point to identical storage.
2773 const struct glsl_type
*Type
;
2774 unsigned int Offset
;
2779 struct gl_uniform_block
2781 /** Declared name of the uniform block */
2784 /** Array of supplemental information about UBO ir_variables. */
2785 struct gl_uniform_buffer_variable
*Uniforms
;
2789 * Index (GL_UNIFORM_BLOCK_BINDING) into ctx->UniformBufferBindings[] to use
2790 * with glBindBufferBase to bind a buffer object to this uniform block.
2795 * Minimum size (in bytes) of a buffer object to back this uniform buffer
2796 * (GL_UNIFORM_BLOCK_DATA_SIZE).
2798 GLuint UniformBufferSize
;
2800 /** Stages that reference this block */
2804 * Linearized array index for uniform block instance arrays
2806 * Given a uniform block instance array declared with size
2807 * blk[s_0][s_1]..[s_m], the block referenced by blk[i_0][i_1]..[i_m] will
2808 * have the linearized array index
2811 * i_m + ∑ i_j * ∏ s_k
2814 * For a uniform block instance that is not an array, this is always 0.
2816 uint8_t linearized_array_index
;
2819 * Layout specified in the shader
2821 * This isn't accessible through the API, but it is used while
2822 * cross-validating uniform blocks.
2824 enum glsl_interface_packing _Packing
;
2825 GLboolean _RowMajor
;
2829 * Structure that represents a reference to an atomic buffer from some
2832 struct gl_active_atomic_buffer
2834 /** Uniform indices of the atomic counters declared within it. */
2838 /** Binding point index associated with it. */
2841 /** Minimum reasonable size it is expected to have. */
2844 /** Shader stages making use of it. */
2845 GLboolean StageReferences
[MESA_SHADER_STAGES
];
2849 * Data container for shader queries. This holds only the minimal
2850 * amount of required information for resource queries to work.
2852 struct gl_shader_variable
2855 * Declared type of the variable
2857 const struct glsl_type
*type
;
2860 * If the variable is in an interface block, this is the type of the block.
2862 const struct glsl_type
*interface_type
;
2865 * For variables inside structs (possibly recursively), this is the
2866 * outermost struct type.
2868 const struct glsl_type
*outermost_struct_type
;
2871 * Declared name of the variable
2876 * Storage location of the base of this variable
2878 * The precise meaning of this field depends on the nature of the variable.
2880 * - Vertex shader input: one of the values from \c gl_vert_attrib.
2881 * - Vertex shader output: one of the values from \c gl_varying_slot.
2882 * - Geometry shader input: one of the values from \c gl_varying_slot.
2883 * - Geometry shader output: one of the values from \c gl_varying_slot.
2884 * - Fragment shader input: one of the values from \c gl_varying_slot.
2885 * - Fragment shader output: one of the values from \c gl_frag_result.
2886 * - Uniforms: Per-stage uniform slot number for default uniform block.
2887 * - Uniforms: Index within the uniform block definition for UBO members.
2888 * - Non-UBO Uniforms: explicit location until linking then reused to
2889 * store uniform slot number.
2890 * - Other: This field is not currently used.
2892 * If the variable is a uniform, shader input, or shader output, and the
2893 * slot has not been assigned, the value will be -1.
2898 * Specifies the first component the variable is stored in as per
2899 * ARB_enhanced_layouts.
2901 unsigned component
:2;
2904 * Output index for dual source blending.
2907 * The GLSL spec only allows the values 0 or 1 for the index in \b dual
2913 * Specifies whether a shader input/output is per-patch in tessellation
2919 * Storage class of the variable.
2921 * \sa (n)ir_variable_mode
2926 * Interpolation mode for shader inputs / outputs
2928 * \sa glsl_interp_mode
2930 unsigned interpolation
:2;
2933 * Was the location explicitly set in the shader?
2935 * If the location is explicitly set in the shader, it \b cannot be changed
2936 * by the linker or by the API (e.g., calls to \c glBindAttribLocation have
2939 unsigned explicit_location
:1;
2942 * Precision qualifier.
2944 unsigned precision
:2;
2948 * Active resource in a gl_shader_program
2950 struct gl_program_resource
2952 GLenum16 Type
; /** Program interface type. */
2953 const void *Data
; /** Pointer to resource associated data structure. */
2954 uint8_t StageReferences
; /** Bitmask of shader stage references. */
2958 * Link status enum. LINKING_SKIPPED is used to indicate linking
2959 * was skipped due to the shader being loaded from the on-disk cache.
2963 LINKING_FAILURE
= 0,
2969 * A data structure to be shared by gl_shader_program and gl_program.
2971 struct gl_shader_program_data
2973 GLint RefCount
; /**< Reference count */
2975 /** SHA1 hash of linked shader program */
2976 unsigned char sha1
[20];
2978 unsigned NumUniformStorage
;
2979 unsigned NumHiddenUniforms
;
2980 struct gl_uniform_storage
*UniformStorage
;
2982 unsigned NumUniformBlocks
;
2983 unsigned NumShaderStorageBlocks
;
2985 struct gl_uniform_block
*UniformBlocks
;
2986 struct gl_uniform_block
*ShaderStorageBlocks
;
2988 struct gl_active_atomic_buffer
*AtomicBuffers
;
2989 unsigned NumAtomicBuffers
;
2991 /* Shader cache variables used during restore */
2992 unsigned NumUniformDataSlots
;
2993 union gl_constant_value
*UniformDataSlots
;
2995 /* Used to hold initial uniform values for program binary restores.
2997 * From the ARB_get_program_binary spec:
2999 * "A successful call to ProgramBinary will reset all uniform
3000 * variables to their initial values. The initial value is either
3001 * the value of the variable's initializer as specified in the
3002 * original shader source, or 0 if no initializer was present.
3004 union gl_constant_value
*UniformDataDefaults
;
3006 GLboolean Validated
;
3008 /** List of all active resources after linking. */
3009 struct gl_program_resource
*ProgramResourceList
;
3010 unsigned NumProgramResourceList
;
3012 enum gl_link_status LinkStatus
; /**< GL_LINK_STATUS */
3015 unsigned Version
; /**< GLSL version used for linking */
3017 /* Mask of stages this program was linked against */
3018 unsigned linked_stages
;
3022 * A GLSL program object.
3023 * Basically a linked collection of vertex and fragment shaders.
3025 struct gl_shader_program
3027 GLenum16 Type
; /**< Always GL_SHADER_PROGRAM (internal token) */
3028 GLuint Name
; /**< aka handle or ID */
3029 GLchar
*Label
; /**< GL_KHR_debug */
3030 GLint RefCount
; /**< Reference count */
3031 GLboolean DeletePending
;
3034 * Is the application intending to glGetProgramBinary this program?
3036 GLboolean BinaryRetreivableHint
;
3039 * Indicates whether program can be bound for individual pipeline stages
3040 * using UseProgramStages after it is next linked.
3042 GLboolean SeparateShader
;
3044 GLuint NumShaders
; /**< number of attached shaders */
3045 struct gl_shader
**Shaders
; /**< List of attached the shaders */
3048 * User-defined attribute bindings
3050 * These are set via \c glBindAttribLocation and are used to direct the
3051 * GLSL linker. These are \b not the values used in the compiled shader,
3052 * and they are \b not the values returned by \c glGetAttribLocation.
3054 struct string_to_uint_map
*AttributeBindings
;
3057 * User-defined fragment data bindings
3059 * These are set via \c glBindFragDataLocation and are used to direct the
3060 * GLSL linker. These are \b not the values used in the compiled shader,
3061 * and they are \b not the values returned by \c glGetFragDataLocation.
3063 struct string_to_uint_map
*FragDataBindings
;
3064 struct string_to_uint_map
*FragDataIndexBindings
;
3067 * Transform feedback varyings last specified by
3068 * glTransformFeedbackVaryings().
3070 * For the current set of transform feedback varyings used for transform
3071 * feedback output, see LinkedTransformFeedback.
3074 GLenum16 BufferMode
;
3075 /** Global xfb_stride out qualifier if any */
3076 GLuint BufferStride
[MAX_FEEDBACK_BUFFERS
];
3078 GLchar
**VaryingNames
; /**< Array [NumVarying] of char * */
3079 } TransformFeedback
;
3081 struct gl_program
*last_vert_prog
;
3083 /** Post-link gl_FragDepth layout for ARB_conservative_depth. */
3084 enum gl_frag_depth_layout FragDepthLayout
;
3087 * Geometry shader state - copied into gl_program by
3088 * _mesa_copy_linked_program_data().
3093 bool UsesEndPrimitive
;
3098 * Compute shader state - copied into gl_program by
3099 * _mesa_copy_linked_program_data().
3103 * Size of shared variables accessed by the compute shader.
3105 unsigned SharedSize
;
3108 /** Data shared by gl_program and gl_shader_program */
3109 struct gl_shader_program_data
*data
;
3112 * Mapping from GL uniform locations returned by \c glUniformLocation to
3113 * UniformStorage entries. Arrays will have multiple contiguous slots
3114 * in the UniformRemapTable, all pointing to the same UniformStorage entry.
3116 unsigned NumUniformRemapTable
;
3117 struct gl_uniform_storage
**UniformRemapTable
;
3120 * Sometimes there are empty slots left over in UniformRemapTable after we
3121 * allocate slots to explicit locations. This list stores the blocks of
3122 * continuous empty slots inside UniformRemapTable.
3124 struct exec_list EmptyUniformLocations
;
3127 * Total number of explicit uniform location including inactive uniforms.
3129 unsigned NumExplicitUniformLocations
;
3132 * Map of active uniform names to locations
3134 * Maps any active uniform that is not an array element to a location.
3135 * Each active uniform, including individual structure members will appear
3136 * in this map. This roughly corresponds to the set of names that would be
3137 * enumerated by \c glGetActiveUniform.
3139 struct string_to_uint_map
*UniformHash
;
3141 GLboolean SamplersValidated
; /**< Samplers validated against texture units? */
3143 bool IsES
; /**< True if this program uses GLSL ES */
3146 * Per-stage shaders resulting from the first stage of linking.
3148 * Set of linked shaders for this program. The array is accessed using the
3149 * \c MESA_SHADER_* defines. Entries for non-existent stages will be
3152 struct gl_linked_shader
*_LinkedShaders
[MESA_SHADER_STAGES
];
3155 * True if any of the fragment shaders attached to this program use:
3156 * #extension ARB_fragment_coord_conventions: enable
3158 GLboolean ARB_fragment_coord_conventions_enable
;
3162 #define GLSL_DUMP 0x1 /**< Dump shaders to stdout */
3163 #define GLSL_LOG 0x2 /**< Write shaders to files */
3164 #define GLSL_UNIFORMS 0x4 /**< Print glUniform calls */
3165 #define GLSL_NOP_VERT 0x8 /**< Force no-op vertex shaders */
3166 #define GLSL_NOP_FRAG 0x10 /**< Force no-op fragment shaders */
3167 #define GLSL_USE_PROG 0x20 /**< Log glUseProgram calls */
3168 #define GLSL_REPORT_ERRORS 0x40 /**< Print compilation errors */
3169 #define GLSL_DUMP_ON_ERROR 0x80 /**< Dump shaders to stderr on compile error */
3170 #define GLSL_CACHE_INFO 0x100 /**< Print debug information about shader cache */
3171 #define GLSL_CACHE_FALLBACK 0x200 /**< Force shader cache fallback paths */
3175 * Context state for GLSL vertex/fragment shaders.
3176 * Extended to support pipeline object
3178 struct gl_pipeline_object
3180 /** Name of the pipeline object as received from glGenProgramPipelines.
3181 * It would be 0 for shaders without separate shader objects.
3187 GLchar
*Label
; /**< GL_KHR_debug */
3190 * Programs used for rendering
3192 * There is a separate program set for each shader stage.
3194 struct gl_program
*CurrentProgram
[MESA_SHADER_STAGES
];
3196 struct gl_shader_program
*ReferencedPrograms
[MESA_SHADER_STAGES
];
3199 * Program used by glUniform calls.
3201 * Explicitly set by \c glUseProgram and \c glActiveProgramEXT.
3203 struct gl_shader_program
*ActiveProgram
;
3205 GLbitfield Flags
; /**< Mask of GLSL_x flags */
3206 GLboolean EverBound
; /**< Has the pipeline object been created */
3207 GLboolean Validated
; /**< Pipeline Validation status */
3213 * Context state for GLSL pipeline shaders.
3215 struct gl_pipeline_shader_state
3217 /** Currently bound pipeline object. See _mesa_BindProgramPipeline() */
3218 struct gl_pipeline_object
*Current
;
3220 /** Default Object to ensure that _Shader is never NULL */
3221 struct gl_pipeline_object
*Default
;
3223 /** Pipeline objects */
3224 struct _mesa_HashTable
*Objects
;
3228 * Compiler options for a single GLSL shaders type
3230 struct gl_shader_compiler_options
3232 /** Driver-selectable options: */
3233 GLboolean EmitNoLoops
;
3234 GLboolean EmitNoCont
; /**< Emit CONT opcode? */
3235 GLboolean EmitNoMainReturn
; /**< Emit CONT/RET opcodes? */
3236 GLboolean EmitNoPow
; /**< Emit POW opcodes? */
3237 GLboolean EmitNoSat
; /**< Emit SAT opcodes? */
3238 GLboolean LowerCombinedClipCullDistance
; /** Lower gl_ClipDistance and
3239 * gl_CullDistance together from
3240 * float[8] to vec4[2]
3244 * \name Forms of indirect addressing the driver cannot do.
3247 GLboolean EmitNoIndirectInput
; /**< No indirect addressing of inputs */
3248 GLboolean EmitNoIndirectOutput
; /**< No indirect addressing of outputs */
3249 GLboolean EmitNoIndirectTemp
; /**< No indirect addressing of temps */
3250 GLboolean EmitNoIndirectUniform
; /**< No indirect addressing of constants */
3251 GLboolean EmitNoIndirectSampler
; /**< No indirect addressing of samplers */
3254 GLuint MaxIfDepth
; /**< Maximum nested IF blocks */
3255 GLuint MaxUnrollIterations
;
3258 * Optimize code for array of structures backends.
3260 * This is a proxy for:
3261 * - preferring DP4 instructions (rather than MUL/MAD) for
3262 * matrix * vector operations, such as position transformation.
3264 GLboolean OptimizeForAOS
;
3266 /** Lower UBO and SSBO access to intrinsics. */
3267 GLboolean LowerBufferInterfaceBlocks
;
3269 /** Clamp UBO and SSBO block indices so they don't go out-of-bounds. */
3270 GLboolean ClampBlockIndicesToArrayBounds
;
3272 const struct nir_shader_compiler_options
*NirOptions
;
3277 * Occlusion/timer query object.
3279 struct gl_query_object
3281 GLenum16 Target
; /**< The query target, when active */
3282 GLuint Id
; /**< hash table ID/name */
3283 GLchar
*Label
; /**< GL_KHR_debug */
3284 GLuint64EXT Result
; /**< the counter */
3285 GLboolean Active
; /**< inside Begin/EndQuery */
3286 GLboolean Ready
; /**< result is ready? */
3287 GLboolean EverBound
;/**< has query object ever been bound */
3288 GLuint Stream
; /**< The stream */
3293 * Context state for query objects.
3295 struct gl_query_state
3297 struct _mesa_HashTable
*QueryObjects
;
3298 struct gl_query_object
*CurrentOcclusionObject
; /* GL_ARB_occlusion_query */
3299 struct gl_query_object
*CurrentTimerObject
; /* GL_EXT_timer_query */
3301 /** GL_NV_conditional_render */
3302 struct gl_query_object
*CondRenderQuery
;
3304 /** GL_EXT_transform_feedback */
3305 struct gl_query_object
*PrimitivesGenerated
[MAX_VERTEX_STREAMS
];
3306 struct gl_query_object
*PrimitivesWritten
[MAX_VERTEX_STREAMS
];
3308 /** GL_ARB_transform_feedback_overflow_query */
3309 struct gl_query_object
*TransformFeedbackOverflow
[MAX_VERTEX_STREAMS
];
3310 struct gl_query_object
*TransformFeedbackOverflowAny
;
3312 /** GL_ARB_timer_query */
3313 struct gl_query_object
*TimeElapsed
;
3315 /** GL_ARB_pipeline_statistics_query */
3316 struct gl_query_object
*pipeline_stats
[MAX_PIPELINE_STATISTICS
];
3318 GLenum16 CondRenderMode
;
3322 /** Sync object state */
3323 struct gl_sync_object
3325 GLuint Name
; /**< Fence name */
3326 GLint RefCount
; /**< Reference count */
3327 GLchar
*Label
; /**< GL_KHR_debug */
3328 GLboolean DeletePending
; /**< Object was deleted while there were still
3329 * live references (e.g., sync not yet finished)
3331 GLenum16 SyncCondition
;
3332 GLbitfield Flags
; /**< Flags passed to glFenceSync */
3333 GLuint StatusFlag
:1; /**< Has the sync object been signaled? */
3338 * State which can be shared by multiple contexts:
3340 struct gl_shared_state
3342 simple_mtx_t Mutex
; /**< for thread safety */
3343 GLint RefCount
; /**< Reference count */
3344 struct _mesa_HashTable
*DisplayList
; /**< Display lists hash table */
3345 struct _mesa_HashTable
*BitmapAtlas
; /**< For optimized glBitmap text */
3346 struct _mesa_HashTable
*TexObjects
; /**< Texture objects hash table */
3348 /** Default texture objects (shared by all texture units) */
3349 struct gl_texture_object
*DefaultTex
[NUM_TEXTURE_TARGETS
];
3351 /** Fallback texture used when a bound texture is incomplete */
3352 struct gl_texture_object
*FallbackTex
[NUM_TEXTURE_TARGETS
];
3355 * \name Thread safety and statechange notification for texture
3358 * \todo Improve the granularity of locking.
3361 mtx_t TexMutex
; /**< texobj thread safety */
3362 GLuint TextureStateStamp
; /**< state notification for shared tex */
3365 /** Default buffer object for vertex arrays that aren't in VBOs */
3366 struct gl_buffer_object
*NullBufferObj
;
3369 * \name Vertex/geometry/fragment programs
3372 struct _mesa_HashTable
*Programs
; /**< All vertex/fragment programs */
3373 struct gl_program
*DefaultVertexProgram
;
3374 struct gl_program
*DefaultFragmentProgram
;
3377 /* GL_ATI_fragment_shader */
3378 struct _mesa_HashTable
*ATIShaders
;
3379 struct ati_fragment_shader
*DefaultFragmentShader
;
3381 struct _mesa_HashTable
*BufferObjects
;
3383 /** Table of both gl_shader and gl_shader_program objects */
3384 struct _mesa_HashTable
*ShaderObjects
;
3386 /* GL_EXT_framebuffer_object */
3387 struct _mesa_HashTable
*RenderBuffers
;
3388 struct _mesa_HashTable
*FrameBuffers
;
3391 struct set
*SyncObjects
;
3393 /** GL_ARB_sampler_objects */
3394 struct _mesa_HashTable
*SamplerObjects
;
3396 /* GL_ARB_bindless_texture */
3397 struct hash_table_u64
*TextureHandles
;
3398 struct hash_table_u64
*ImageHandles
;
3399 mtx_t HandlesMutex
; /**< For texture/image handles safety */
3402 * Some context in this share group was affected by a GPU reset
3404 * On the next call to \c glGetGraphicsResetStatus, contexts that have not
3405 * been affected by a GPU reset must also return
3406 * \c GL_INNOCENT_CONTEXT_RESET_ARB.
3408 * Once this field becomes true, it is never reset to false.
3410 bool ShareGroupReset
;
3412 /** EXT_external_objects */
3413 struct _mesa_HashTable
*MemoryObjects
;
3415 /** EXT_semaphore */
3416 struct _mesa_HashTable
*SemaphoreObjects
;
3419 * Some context in this share group was affected by a disjoint
3420 * operation. This operation can be anything that has effects on
3421 * values of timer queries in such manner that they become invalid for
3422 * performance metrics. As example gpu reset, counter overflow or gpu
3423 * frequency changes.
3425 bool DisjointOperation
;
3431 * Renderbuffers represent drawing surfaces such as color, depth and/or
3432 * stencil. A framebuffer object has a set of renderbuffers.
3433 * Drivers will typically derive subclasses of this type.
3435 struct gl_renderbuffer
3437 simple_mtx_t Mutex
; /**< for thread safety */
3438 GLuint ClassID
; /**< Useful for drivers */
3440 GLchar
*Label
; /**< GL_KHR_debug */
3442 GLuint Width
, Height
;
3444 GLboolean Purgeable
; /**< Is the buffer purgeable under memory pressure? */
3445 GLboolean AttachedAnytime
; /**< TRUE if it was attached to a framebuffer */
3447 * True for renderbuffers that wrap textures, giving the driver a chance to
3448 * flush render caches through the FinishRenderTexture hook.
3450 * Drivers may also set this on renderbuffers other than those generated by
3451 * glFramebufferTexture(), though it means FinishRenderTexture() would be
3452 * called without a rb->TexImage.
3454 GLboolean NeedsFinishRenderTexture
;
3455 GLubyte NumSamples
; /**< zero means not multisampled */
3456 GLenum16 InternalFormat
; /**< The user-specified format */
3457 GLenum16 _BaseFormat
; /**< Either GL_RGB, GL_RGBA, GL_DEPTH_COMPONENT or
3458 GL_STENCIL_INDEX. */
3459 mesa_format Format
; /**< The actual renderbuffer memory format */
3461 * Pointer to the texture image if this renderbuffer wraps a texture,
3464 * Note that the reference on the gl_texture_object containing this
3465 * TexImage is held by the gl_renderbuffer_attachment.
3467 struct gl_texture_image
*TexImage
;
3469 /** Delete this renderbuffer */
3470 void (*Delete
)(struct gl_context
*ctx
, struct gl_renderbuffer
*rb
);
3472 /** Allocate new storage for this renderbuffer */
3473 GLboolean (*AllocStorage
)(struct gl_context
*ctx
,
3474 struct gl_renderbuffer
*rb
,
3475 GLenum internalFormat
,
3476 GLuint width
, GLuint height
);
3481 * A renderbuffer attachment points to either a texture object (and specifies
3482 * a mipmap level, cube face or 3D texture slice) or points to a renderbuffer.
3484 struct gl_renderbuffer_attachment
3486 GLenum16 Type
; /**< \c GL_NONE or \c GL_TEXTURE or \c GL_RENDERBUFFER_EXT */
3490 * If \c Type is \c GL_RENDERBUFFER_EXT, this stores a pointer to the
3491 * application supplied renderbuffer object.
3493 struct gl_renderbuffer
*Renderbuffer
;
3496 * If \c Type is \c GL_TEXTURE, this stores a pointer to the application
3497 * supplied texture object.
3499 struct gl_texture_object
*Texture
;
3500 GLuint TextureLevel
; /**< Attached mipmap level. */
3501 GLuint CubeMapFace
; /**< 0 .. 5, for cube map textures. */
3502 GLuint Zoffset
; /**< Slice for 3D textures, or layer for both 1D
3503 * and 2D array textures */
3509 * A framebuffer is a collection of renderbuffers (color, depth, stencil, etc).
3510 * In C++ terms, think of this as a base class from which device drivers
3511 * will make derived classes.
3513 struct gl_framebuffer
3515 simple_mtx_t Mutex
; /**< for thread safety */
3517 * If zero, this is a window system framebuffer. If non-zero, this
3518 * is a FBO framebuffer; note that for some devices (i.e. those with
3519 * a natural pixel coordinate system for FBOs that differs from the
3520 * OpenGL/Mesa coordinate system), this means that the viewport,
3521 * polygon face orientation, and polygon stipple will have to be inverted.
3526 GLchar
*Label
; /**< GL_KHR_debug */
3528 GLboolean DeletePending
;
3531 * The framebuffer's visual. Immutable if this is a window system buffer.
3532 * Computed from attachments if user-made FBO.
3534 struct gl_config Visual
;
3537 * Size of frame buffer in pixels. If there are no attachments, then both
3540 GLuint Width
, Height
;
3543 * In the case that the framebuffer has no attachment (i.e.
3544 * GL_ARB_framebuffer_no_attachments) then the geometry of
3545 * the framebuffer is specified by the default values.
3548 GLuint Width
, Height
, Layers
, NumSamples
;
3549 GLboolean FixedSampleLocations
;
3550 /* Derived from NumSamples by the driver so that it can choose a valid
3551 * value for the hardware.
3556 /** \name Drawing bounds (Intersection of buffer size and scissor box)
3557 * The drawing region is given by [_Xmin, _Xmax) x [_Ymin, _Ymax),
3558 * (inclusive for _Xmin and _Ymin while exclusive for _Xmax and _Ymax)
3565 /** \name Derived Z buffer stuff */
3567 GLuint _DepthMax
; /**< Max depth buffer value */
3568 GLfloat _DepthMaxF
; /**< Float max depth buffer value */
3569 GLfloat _MRD
; /**< minimum resolvable difference in Z values */
3572 /** One of the GL_FRAMEBUFFER_(IN)COMPLETE_* tokens */
3575 /** Whether one of Attachment has Type != GL_NONE
3576 * NOTE: the values for Width and Height are set to 0 in case of having
3577 * no attachments, a backend driver supporting the extension
3578 * GL_ARB_framebuffer_no_attachments must check for the flag _HasAttachments
3579 * and if GL_FALSE, must then use the values in DefaultGeometry to initialize
3580 * its viewport, scissor and so on (in particular _Xmin, _Xmax, _Ymin and
3581 * _Ymax do NOT take into account _HasAttachments being false). To get the
3582 * geometry of the framebuffer, the helper functions
3583 * _mesa_geometric_width(),
3584 * _mesa_geometric_height(),
3585 * _mesa_geometric_samples() and
3586 * _mesa_geometric_layers()
3587 * are available that check _HasAttachments.
3589 bool _HasAttachments
;
3591 GLbitfield _IntegerBuffers
; /**< Which color buffers are integer valued */
3593 /* ARB_color_buffer_float */
3594 GLboolean _AllColorBuffersFixedPoint
; /* no integer, no float */
3595 GLboolean _HasSNormOrFloatColorBuffer
;
3598 * The maximum number of layers in the framebuffer, or 0 if the framebuffer
3599 * is not layered. For cube maps and cube map arrays, each cube face
3600 * counts as a layer. As the case for Width, Height a backend driver
3601 * supporting GL_ARB_framebuffer_no_attachments must use DefaultGeometry
3602 * in the case that _HasAttachments is false
3604 GLuint MaxNumLayers
;
3606 /** Array of all renderbuffer attachments, indexed by BUFFER_* tokens. */
3607 struct gl_renderbuffer_attachment Attachment
[BUFFER_COUNT
];
3609 /* In unextended OpenGL these vars are part of the GL_COLOR_BUFFER
3610 * attribute group and GL_PIXEL attribute group, respectively.
3612 GLenum16 ColorDrawBuffer
[MAX_DRAW_BUFFERS
];
3613 GLenum16 ColorReadBuffer
;
3615 /** Computed from ColorDraw/ReadBuffer above */
3616 GLuint _NumColorDrawBuffers
;
3617 gl_buffer_index _ColorDrawBufferIndexes
[MAX_DRAW_BUFFERS
];
3618 gl_buffer_index _ColorReadBufferIndex
;
3619 struct gl_renderbuffer
*_ColorDrawBuffers
[MAX_DRAW_BUFFERS
];
3620 struct gl_renderbuffer
*_ColorReadBuffer
;
3622 /** Delete this framebuffer */
3623 void (*Delete
)(struct gl_framebuffer
*fb
);
3628 * Precision info for shader datatypes. See glGetShaderPrecisionFormat().
3632 GLushort RangeMin
; /**< min value exponent */
3633 GLushort RangeMax
; /**< max value exponent */
3634 GLushort Precision
; /**< number of mantissa bits */
3639 * Limits for vertex, geometry and fragment programs/shaders.
3641 struct gl_program_constants
3643 /* logical limits */
3644 GLuint MaxInstructions
;
3645 GLuint MaxAluInstructions
;
3646 GLuint MaxTexInstructions
;
3647 GLuint MaxTexIndirections
;
3650 GLuint MaxAddressRegs
;
3651 GLuint MaxAddressOffset
; /**< [-MaxAddressOffset, MaxAddressOffset-1] */
3652 GLuint MaxParameters
;
3653 GLuint MaxLocalParams
;
3654 GLuint MaxEnvParams
;
3655 /* native/hardware limits */
3656 GLuint MaxNativeInstructions
;
3657 GLuint MaxNativeAluInstructions
;
3658 GLuint MaxNativeTexInstructions
;
3659 GLuint MaxNativeTexIndirections
;
3660 GLuint MaxNativeAttribs
;
3661 GLuint MaxNativeTemps
;
3662 GLuint MaxNativeAddressRegs
;
3663 GLuint MaxNativeParameters
;
3665 GLuint MaxUniformComponents
; /**< Usually == MaxParameters * 4 */
3668 * \name Per-stage input / output limits
3670 * Previous to OpenGL 3.2, the intrastage data limits were advertised with
3671 * a single value: GL_MAX_VARYING_COMPONENTS (GL_MAX_VARYING_VECTORS in
3672 * ES). This is stored as \c gl_constants::MaxVarying.
3674 * Starting with OpenGL 3.2, the limits are advertised with per-stage
3675 * variables. Each stage as a certain number of outputs that it can feed
3676 * to the next stage and a certain number inputs that it can consume from
3677 * the previous stage.
3679 * Vertex shader inputs do not participate this in this accounting.
3680 * These are tracked exclusively by \c gl_program_constants::MaxAttribs.
3682 * Fragment shader outputs do not participate this in this accounting.
3683 * These are tracked exclusively by \c gl_constants::MaxDrawBuffers.
3686 GLuint MaxInputComponents
;
3687 GLuint MaxOutputComponents
;
3690 /* ES 2.0 and GL_ARB_ES2_compatibility */
3691 struct gl_precision LowFloat
, MediumFloat
, HighFloat
;
3692 struct gl_precision LowInt
, MediumInt
, HighInt
;
3693 /* GL_ARB_uniform_buffer_object */
3694 GLuint MaxUniformBlocks
;
3695 GLuint MaxCombinedUniformComponents
;
3696 GLuint MaxTextureImageUnits
;
3698 /* GL_ARB_shader_atomic_counters */
3699 GLuint MaxAtomicBuffers
;
3700 GLuint MaxAtomicCounters
;
3702 /* GL_ARB_shader_image_load_store */
3703 GLuint MaxImageUniforms
;
3705 /* GL_ARB_shader_storage_buffer_object */
3706 GLuint MaxShaderStorageBlocks
;
3710 * Constants which may be overridden by device driver during context creation
3711 * but are never changed after that.
3715 GLuint MaxTextureMbytes
; /**< Max memory per image, in MB */
3716 GLuint MaxTextureLevels
; /**< Max mipmap levels. */
3717 GLuint Max3DTextureLevels
; /**< Max mipmap levels for 3D textures */
3718 GLuint MaxCubeTextureLevels
; /**< Max mipmap levels for cube textures */
3719 GLuint MaxArrayTextureLayers
; /**< Max layers in array textures */
3720 GLuint MaxTextureRectSize
; /**< Max rectangle texture size, in pixes */
3721 GLuint MaxTextureCoordUnits
;
3722 GLuint MaxCombinedTextureImageUnits
;
3723 GLuint MaxTextureUnits
; /**< = MIN(CoordUnits, FragmentProgram.ImageUnits) */
3724 GLfloat MaxTextureMaxAnisotropy
; /**< GL_EXT_texture_filter_anisotropic */
3725 GLfloat MaxTextureLodBias
; /**< GL_EXT_texture_lod_bias */
3726 GLuint MaxTextureBufferSize
; /**< GL_ARB_texture_buffer_object */
3728 GLuint TextureBufferOffsetAlignment
; /**< GL_ARB_texture_buffer_range */
3730 GLuint MaxArrayLockSize
;
3734 GLfloat MinPointSize
, MaxPointSize
; /**< aliased */
3735 GLfloat MinPointSizeAA
, MaxPointSizeAA
; /**< antialiased */
3736 GLfloat PointSizeGranularity
;
3737 GLfloat MinLineWidth
, MaxLineWidth
; /**< aliased */
3738 GLfloat MinLineWidthAA
, MaxLineWidthAA
; /**< antialiased */
3739 GLfloat LineWidthGranularity
;
3741 GLuint MaxClipPlanes
;
3743 GLfloat MaxShininess
; /**< GL_NV_light_max_exponent */
3744 GLfloat MaxSpotExponent
; /**< GL_NV_light_max_exponent */
3746 GLuint MaxViewportWidth
, MaxViewportHeight
;
3747 GLuint MaxViewports
; /**< GL_ARB_viewport_array */
3748 GLuint ViewportSubpixelBits
; /**< GL_ARB_viewport_array */
3752 } ViewportBounds
; /**< GL_ARB_viewport_array */
3753 GLuint MaxWindowRectangles
; /**< GL_EXT_window_rectangles */
3755 struct gl_program_constants Program
[MESA_SHADER_STAGES
];
3756 GLuint MaxProgramMatrices
;
3757 GLuint MaxProgramMatrixStackDepth
;
3760 GLuint SamplesPassed
;
3763 GLuint PrimitivesGenerated
;
3764 GLuint PrimitivesWritten
;
3765 GLuint VerticesSubmitted
;
3766 GLuint PrimitivesSubmitted
;
3767 GLuint VsInvocations
;
3769 GLuint TessInvocations
;
3770 GLuint GsInvocations
;
3771 GLuint GsPrimitives
;
3772 GLuint FsInvocations
;
3773 GLuint ComputeInvocations
;
3774 GLuint ClInPrimitives
;
3775 GLuint ClOutPrimitives
;
3778 GLuint MaxDrawBuffers
; /**< GL_ARB_draw_buffers */
3780 GLuint MaxColorAttachments
; /**< GL_EXT_framebuffer_object */
3781 GLuint MaxRenderbufferSize
; /**< GL_EXT_framebuffer_object */
3782 GLuint MaxSamples
; /**< GL_ARB_framebuffer_object */
3785 * GL_ARB_framebuffer_no_attachments
3787 GLuint MaxFramebufferWidth
;
3788 GLuint MaxFramebufferHeight
;
3789 GLuint MaxFramebufferLayers
;
3790 GLuint MaxFramebufferSamples
;
3792 /** Number of varying vectors between any two shader stages. */
3796 * GL_ARB_uniform_buffer_object
3798 GLuint MaxCombinedUniformBlocks
;
3799 GLuint MaxUniformBufferBindings
;
3800 GLuint MaxUniformBlockSize
;
3801 GLuint UniformBufferOffsetAlignment
;
3805 * GL_ARB_shader_storage_buffer_object
3807 GLuint MaxCombinedShaderStorageBlocks
;
3808 GLuint MaxShaderStorageBufferBindings
;
3809 GLuint MaxShaderStorageBlockSize
;
3810 GLuint ShaderStorageBufferOffsetAlignment
;
3814 * GL_ARB_explicit_uniform_location
3816 GLuint MaxUserAssignableUniformLocations
;
3818 /** geometry shader */
3819 GLuint MaxGeometryOutputVertices
;
3820 GLuint MaxGeometryTotalOutputComponents
;
3822 GLuint GLSLVersion
; /**< Desktop GLSL version supported (ex: 120 = 1.20) */
3825 * Changes default GLSL extension behavior from "error" to "warn". It's out
3826 * of spec, but it can make some apps work that otherwise wouldn't.
3828 GLboolean ForceGLSLExtensionsWarn
;
3831 * If non-zero, forces GLSL shaders to behave as if they began
3832 * with "#version ForceGLSLVersion".
3834 GLuint ForceGLSLVersion
;
3837 * Allow GLSL #extension directives in the middle of shaders.
3839 GLboolean AllowGLSLExtensionDirectiveMidShader
;
3842 * Allow GLSL built-in variables to be redeclared verbatim
3844 GLboolean AllowGLSLBuiltinVariableRedeclaration
;
3847 * Allow GLSL interpolation qualifier mismatch across shader stages.
3849 GLboolean AllowGLSLCrossStageInterpolationMismatch
;
3852 * Allow creating a higher compat profile (version 3.1+) for apps that
3853 * request it. Be careful when adding that driconf option because some
3854 * features are unimplemented and might not work correctly.
3856 GLboolean AllowHigherCompatVersion
;
3859 * Force computing the absolute value for sqrt() and inversesqrt() to follow
3860 * D3D9 when apps rely on this behaviour.
3862 GLboolean ForceGLSLAbsSqrt
;
3865 * Force uninitialized variables to default to zero.
3867 GLboolean GLSLZeroInit
;
3870 * Does the driver support real 32-bit integers? (Otherwise, integers are
3871 * simulated via floats.)
3873 GLboolean NativeIntegers
;
3876 * Does VertexID count from zero or from base vertex?
3879 * If desktop GLSL 1.30 or GLSL ES 3.00 are not supported, this field is
3880 * ignored and need not be set.
3882 bool VertexID_is_zero_based
;
3885 * If the driver supports real 32-bit integers, what integer value should be
3886 * used for boolean true in uniform uploads? (Usually 1 or ~0.)
3888 GLuint UniformBooleanTrue
;
3891 * Maximum amount of time, measured in nanseconds, that the server can wait.
3893 GLuint64 MaxServerWaitTimeout
;
3895 /** GL_EXT_provoking_vertex */
3896 GLboolean QuadsFollowProvokingVertexConvention
;
3898 /** GL_ARB_viewport_array */
3899 GLenum16 LayerAndVPIndexProvokingVertex
;
3901 /** OpenGL version 3.0 */
3902 GLbitfield ContextFlags
; /**< Ex: GL_CONTEXT_FLAG_FORWARD_COMPATIBLE_BIT */
3904 /** OpenGL version 3.2 */
3905 GLbitfield ProfileMask
; /**< Mask of CONTEXT_x_PROFILE_BIT */
3907 /** OpenGL version 4.4 */
3908 GLuint MaxVertexAttribStride
;
3910 /** GL_EXT_transform_feedback */
3911 GLuint MaxTransformFeedbackBuffers
;
3912 GLuint MaxTransformFeedbackSeparateComponents
;
3913 GLuint MaxTransformFeedbackInterleavedComponents
;
3914 GLuint MaxVertexStreams
;
3916 /** GL_EXT_gpu_shader4 */
3917 GLint MinProgramTexelOffset
, MaxProgramTexelOffset
;
3919 /** GL_ARB_texture_gather */
3920 GLuint MinProgramTextureGatherOffset
;
3921 GLuint MaxProgramTextureGatherOffset
;
3922 GLuint MaxProgramTextureGatherComponents
;
3924 /* GL_ARB_robustness */
3925 GLenum16 ResetStrategy
;
3927 /* GL_KHR_robustness */
3928 GLboolean RobustAccess
;
3930 /* GL_ARB_blend_func_extended */
3931 GLuint MaxDualSourceDrawBuffers
;
3934 * Whether the implementation strips out and ignores texture borders.
3936 * Many GPU hardware implementations don't support rendering with texture
3937 * borders and mipmapped textures. (Note: not static border color, but the
3938 * old 1-pixel border around each edge). Implementations then have to do
3939 * slow fallbacks to be correct, or just ignore the border and be fast but
3940 * wrong. Setting the flag strips the border off of TexImage calls,
3941 * providing "fast but wrong" at significantly reduced driver complexity.
3943 * Texture borders are deprecated in GL 3.0.
3945 GLboolean StripTextureBorder
;
3948 * For drivers which can do a better job at eliminating unused uniforms
3949 * than the GLSL compiler.
3951 * XXX Remove these as soon as a better solution is available.
3953 GLboolean GLSLSkipStrictMaxUniformLimitCheck
;
3955 /** Whether gl_FragCoord and gl_FrontFacing are system values. */
3956 bool GLSLFragCoordIsSysVal
;
3957 bool GLSLFrontFacingIsSysVal
;
3960 * Run the minimum amount of GLSL optimizations to be able to link
3961 * shaders optimally (eliminate dead varyings and uniforms) and just do
3962 * all the necessary lowering.
3964 bool GLSLOptimizeConservatively
;
3967 * True if gl_TessLevelInner/Outer[] in the TES should be inputs
3968 * (otherwise, they're system values).
3970 bool GLSLTessLevelsAsInputs
;
3973 * Always use the GetTransformFeedbackVertexCount() driver hook, rather
3974 * than passing the transform feedback object to the drawing function.
3976 GLboolean AlwaysUseGetTransformFeedbackVertexCount
;
3978 /** GL_ARB_map_buffer_alignment */
3979 GLuint MinMapBufferAlignment
;
3982 * Disable varying packing. This is out of spec, but potentially useful
3983 * for older platforms that supports a limited number of texture
3984 * indirections--on these platforms, unpacking the varyings in the fragment
3985 * shader increases the number of texture indirections by 1, which might
3986 * make some shaders not executable at all.
3988 * Drivers that support transform feedback must set this value to GL_FALSE.
3990 GLboolean DisableVaryingPacking
;
3993 * UBOs and SSBOs can be packed tightly by the OpenGL implementation when
3994 * layout is set as shared (the default) or packed. However most Mesa drivers
3995 * just use STD140 for these layouts. This flag allows drivers to use STD430
3996 * for packed and shared layouts which allows arrays to be packed more
3999 bool UseSTD430AsDefaultPacking
;
4002 * Should meaningful names be generated for compiler temporary variables?
4004 * Generally, it is not useful to have the compiler generate "meaningful"
4005 * names for temporary variables that it creates. This can, however, be a
4006 * useful debugging aid. In Mesa debug builds or release builds when
4007 * MESA_GLSL is set at run-time, meaningful names will be generated.
4008 * Drivers can also force names to be generated by setting this field.
4009 * For example, the i965 driver may set it when INTEL_DEBUG=vs (to dump
4010 * vertex shader assembly) is set at run-time.
4012 bool GenerateTemporaryNames
;
4015 * Maximum value supported for an index in DrawElements and friends.
4017 * This must be at least (1ull<<24)-1. The default value is
4020 * \since ES 3.0 or GL_ARB_ES3_compatibility
4021 * \sa _mesa_init_constants
4023 GLuint64 MaxElementIndex
;
4026 * Disable interpretation of line continuations (lines ending with a
4027 * backslash character ('\') in GLSL source.
4029 GLboolean DisableGLSLLineContinuations
;
4031 /** GL_ARB_texture_multisample */
4032 GLint MaxColorTextureSamples
;
4033 GLint MaxDepthTextureSamples
;
4034 GLint MaxIntegerSamples
;
4037 * GL_EXT_texture_multisample_blit_scaled implementation assumes that
4038 * samples are laid out in a rectangular grid roughly corresponding to
4039 * sample locations within a pixel. Below SampleMap{2,4,8}x variables
4040 * are used to map indices of rectangular grid to sample numbers within
4041 * a pixel. This mapping of indices to sample numbers must be initialized
4042 * by the driver for the target hardware. For example, if we have the 8X
4043 * MSAA sample number layout (sample positions) for XYZ hardware:
4045 * sample indices layout sample number layout
4046 * --------- ---------
4047 * | 0 | 1 | | a | b |
4048 * --------- ---------
4049 * | 2 | 3 | | c | d |
4050 * --------- ---------
4051 * | 4 | 5 | | e | f |
4052 * --------- ---------
4053 * | 6 | 7 | | g | h |
4054 * --------- ---------
4056 * Where a,b,c,d,e,f,g,h are integers between [0-7].
4058 * Then, initialize the SampleMap8x variable for XYZ hardware as shown
4060 * SampleMap8x = {a, b, c, d, e, f, g, h};
4062 * Follow the logic for sample counts 2-8.
4064 * For 16x the sample indices layout as a 4x4 grid as follows:
4076 uint8_t SampleMap2x
[2];
4077 uint8_t SampleMap4x
[4];
4078 uint8_t SampleMap8x
[8];
4079 uint8_t SampleMap16x
[16];
4081 /** GL_ARB_shader_atomic_counters */
4082 GLuint MaxAtomicBufferBindings
;
4083 GLuint MaxAtomicBufferSize
;
4084 GLuint MaxCombinedAtomicBuffers
;
4085 GLuint MaxCombinedAtomicCounters
;
4087 /** GL_ARB_vertex_attrib_binding */
4088 GLint MaxVertexAttribRelativeOffset
;
4089 GLint MaxVertexAttribBindings
;
4091 /* GL_ARB_shader_image_load_store */
4092 GLuint MaxImageUnits
;
4093 GLuint MaxCombinedShaderOutputResources
;
4094 GLuint MaxImageSamples
;
4095 GLuint MaxCombinedImageUniforms
;
4097 /** GL_ARB_compute_shader */
4098 GLuint MaxComputeWorkGroupCount
[3]; /* Array of x, y, z dimensions */
4099 GLuint MaxComputeWorkGroupSize
[3]; /* Array of x, y, z dimensions */
4100 GLuint MaxComputeWorkGroupInvocations
;
4101 GLuint MaxComputeSharedMemorySize
;
4103 /** GL_ARB_compute_variable_group_size */
4104 GLuint MaxComputeVariableGroupSize
[3]; /* Array of x, y, z dimensions */
4105 GLuint MaxComputeVariableGroupInvocations
;
4107 /** GL_ARB_gpu_shader5 */
4108 GLfloat MinFragmentInterpolationOffset
;
4109 GLfloat MaxFragmentInterpolationOffset
;
4111 GLboolean FakeSWMSAA
;
4113 /** GL_KHR_context_flush_control */
4114 GLenum16 ContextReleaseBehavior
;
4116 struct gl_shader_compiler_options ShaderCompilerOptions
[MESA_SHADER_STAGES
];
4118 /** GL_ARB_tessellation_shader */
4119 GLuint MaxPatchVertices
;
4120 GLuint MaxTessGenLevel
;
4121 GLuint MaxTessPatchComponents
;
4122 GLuint MaxTessControlTotalOutputComponents
;
4123 bool LowerTessLevel
; /**< Lower gl_TessLevel* from float[n] to vecn? */
4124 bool PrimitiveRestartForPatches
;
4125 bool LowerCsDerivedVariables
; /**< Lower gl_GlobalInvocationID and
4126 * gl_LocalInvocationIndex based on
4127 * other builtin variables. */
4129 /** GL_OES_primitive_bounding_box */
4130 bool NoPrimitiveBoundingBoxOutput
;
4132 /** GL_ARB_sparse_buffer */
4133 GLuint SparseBufferPageSize
;
4135 /** Used as an input for sha1 generation in the on-disk shader cache */
4136 unsigned char *dri_config_options_sha1
;
4138 /** When drivers are OK with mapped buffers during draw and other calls. */
4139 bool AllowMappedBuffersDuringExecution
;
4141 /** GL_ARB_get_program_binary */
4142 GLuint NumProgramBinaryFormats
;
4144 /** Is the drivers uniform storage packed or padded to 16 bytes. */
4145 bool PackedDriverUniformStorage
;
4147 /** GL_ARB_gl_spirv */
4148 struct spirv_supported_capabilities SpirVCapabilities
;
4153 * Enable flag for each OpenGL extension. Different device drivers will
4154 * enable different extensions at runtime.
4156 struct gl_extensions
4158 GLboolean dummy
; /* don't remove this! */
4159 GLboolean dummy_true
; /* Set true by _mesa_init_extensions(). */
4160 GLboolean dummy_false
; /* Set false by _mesa_init_extensions(). */
4161 GLboolean ANGLE_texture_compression_dxt
;
4162 GLboolean ARB_ES2_compatibility
;
4163 GLboolean ARB_ES3_compatibility
;
4164 GLboolean ARB_ES3_1_compatibility
;
4165 GLboolean ARB_ES3_2_compatibility
;
4166 GLboolean ARB_arrays_of_arrays
;
4167 GLboolean ARB_base_instance
;
4168 GLboolean ARB_bindless_texture
;
4169 GLboolean ARB_blend_func_extended
;
4170 GLboolean ARB_buffer_storage
;
4171 GLboolean ARB_clear_texture
;
4172 GLboolean ARB_clip_control
;
4173 GLboolean ARB_color_buffer_float
;
4174 GLboolean ARB_compatibility
;
4175 GLboolean ARB_compute_shader
;
4176 GLboolean ARB_compute_variable_group_size
;
4177 GLboolean ARB_conditional_render_inverted
;
4178 GLboolean ARB_conservative_depth
;
4179 GLboolean ARB_copy_image
;
4180 GLboolean ARB_cull_distance
;
4181 GLboolean ARB_depth_buffer_float
;
4182 GLboolean ARB_depth_clamp
;
4183 GLboolean ARB_depth_texture
;
4184 GLboolean ARB_derivative_control
;
4185 GLboolean ARB_draw_buffers_blend
;
4186 GLboolean ARB_draw_elements_base_vertex
;
4187 GLboolean ARB_draw_indirect
;
4188 GLboolean ARB_draw_instanced
;
4189 GLboolean ARB_fragment_coord_conventions
;
4190 GLboolean ARB_fragment_layer_viewport
;
4191 GLboolean ARB_fragment_program
;
4192 GLboolean ARB_fragment_program_shadow
;
4193 GLboolean ARB_fragment_shader
;
4194 GLboolean ARB_framebuffer_no_attachments
;
4195 GLboolean ARB_framebuffer_object
;
4196 GLboolean ARB_enhanced_layouts
;
4197 GLboolean ARB_explicit_attrib_location
;
4198 GLboolean ARB_explicit_uniform_location
;
4199 GLboolean ARB_gl_spirv
;
4200 GLboolean ARB_gpu_shader5
;
4201 GLboolean ARB_gpu_shader_fp64
;
4202 GLboolean ARB_gpu_shader_int64
;
4203 GLboolean ARB_half_float_vertex
;
4204 GLboolean ARB_indirect_parameters
;
4205 GLboolean ARB_instanced_arrays
;
4206 GLboolean ARB_internalformat_query
;
4207 GLboolean ARB_internalformat_query2
;
4208 GLboolean ARB_map_buffer_range
;
4209 GLboolean ARB_occlusion_query
;
4210 GLboolean ARB_occlusion_query2
;
4211 GLboolean ARB_pipeline_statistics_query
;
4212 GLboolean ARB_point_sprite
;
4213 GLboolean ARB_polygon_offset_clamp
;
4214 GLboolean ARB_post_depth_coverage
;
4215 GLboolean ARB_query_buffer_object
;
4216 GLboolean ARB_robust_buffer_access_behavior
;
4217 GLboolean ARB_sample_shading
;
4218 GLboolean ARB_seamless_cube_map
;
4219 GLboolean ARB_shader_atomic_counter_ops
;
4220 GLboolean ARB_shader_atomic_counters
;
4221 GLboolean ARB_shader_ballot
;
4222 GLboolean ARB_shader_bit_encoding
;
4223 GLboolean ARB_shader_clock
;
4224 GLboolean ARB_shader_draw_parameters
;
4225 GLboolean ARB_shader_group_vote
;
4226 GLboolean ARB_shader_image_load_store
;
4227 GLboolean ARB_shader_image_size
;
4228 GLboolean ARB_shader_precision
;
4229 GLboolean ARB_shader_stencil_export
;
4230 GLboolean ARB_shader_storage_buffer_object
;
4231 GLboolean ARB_shader_texture_image_samples
;
4232 GLboolean ARB_shader_texture_lod
;
4233 GLboolean ARB_shader_viewport_layer_array
;
4234 GLboolean ARB_shading_language_packing
;
4235 GLboolean ARB_shading_language_420pack
;
4236 GLboolean ARB_shadow
;
4237 GLboolean ARB_sparse_buffer
;
4238 GLboolean ARB_stencil_texturing
;
4240 GLboolean ARB_tessellation_shader
;
4241 GLboolean ARB_texture_border_clamp
;
4242 GLboolean ARB_texture_buffer_object
;
4243 GLboolean ARB_texture_buffer_object_rgb32
;
4244 GLboolean ARB_texture_buffer_range
;
4245 GLboolean ARB_texture_compression_bptc
;
4246 GLboolean ARB_texture_compression_rgtc
;
4247 GLboolean ARB_texture_cube_map
;
4248 GLboolean ARB_texture_cube_map_array
;
4249 GLboolean ARB_texture_env_combine
;
4250 GLboolean ARB_texture_env_crossbar
;
4251 GLboolean ARB_texture_env_dot3
;
4252 GLboolean ARB_texture_filter_anisotropic
;
4253 GLboolean ARB_texture_float
;
4254 GLboolean ARB_texture_gather
;
4255 GLboolean ARB_texture_mirror_clamp_to_edge
;
4256 GLboolean ARB_texture_multisample
;
4257 GLboolean ARB_texture_non_power_of_two
;
4258 GLboolean ARB_texture_stencil8
;
4259 GLboolean ARB_texture_query_levels
;
4260 GLboolean ARB_texture_query_lod
;
4261 GLboolean ARB_texture_rg
;
4262 GLboolean ARB_texture_rgb10_a2ui
;
4263 GLboolean ARB_texture_view
;
4264 GLboolean ARB_timer_query
;
4265 GLboolean ARB_transform_feedback2
;
4266 GLboolean ARB_transform_feedback3
;
4267 GLboolean ARB_transform_feedback_instanced
;
4268 GLboolean ARB_transform_feedback_overflow_query
;
4269 GLboolean ARB_uniform_buffer_object
;
4270 GLboolean ARB_vertex_attrib_64bit
;
4271 GLboolean ARB_vertex_program
;
4272 GLboolean ARB_vertex_shader
;
4273 GLboolean ARB_vertex_type_10f_11f_11f_rev
;
4274 GLboolean ARB_vertex_type_2_10_10_10_rev
;
4275 GLboolean ARB_viewport_array
;
4276 GLboolean EXT_blend_color
;
4277 GLboolean EXT_blend_equation_separate
;
4278 GLboolean EXT_blend_func_separate
;
4279 GLboolean EXT_blend_minmax
;
4280 GLboolean EXT_depth_bounds_test
;
4281 GLboolean EXT_disjoint_timer_query
;
4282 GLboolean EXT_draw_buffers2
;
4283 GLboolean EXT_framebuffer_multisample
;
4284 GLboolean EXT_framebuffer_multisample_blit_scaled
;
4285 GLboolean EXT_framebuffer_sRGB
;
4286 GLboolean EXT_gpu_program_parameters
;
4287 GLboolean EXT_gpu_shader4
;
4288 GLboolean EXT_memory_object
;
4289 GLboolean EXT_memory_object_fd
;
4290 GLboolean EXT_packed_float
;
4291 GLboolean EXT_pixel_buffer_object
;
4292 GLboolean EXT_point_parameters
;
4293 GLboolean EXT_provoking_vertex
;
4294 GLboolean EXT_semaphore
;
4295 GLboolean EXT_semaphore_fd
;
4296 GLboolean EXT_shader_integer_mix
;
4297 GLboolean EXT_shader_samples_identical
;
4298 GLboolean EXT_stencil_two_side
;
4299 GLboolean EXT_texture_array
;
4300 GLboolean EXT_texture_compression_latc
;
4301 GLboolean EXT_texture_compression_s3tc
;
4302 GLboolean EXT_texture_env_dot3
;
4303 GLboolean EXT_texture_filter_anisotropic
;
4304 GLboolean EXT_texture_integer
;
4305 GLboolean EXT_texture_mirror_clamp
;
4306 GLboolean EXT_texture_shared_exponent
;
4307 GLboolean EXT_texture_snorm
;
4308 GLboolean EXT_texture_sRGB
;
4309 GLboolean EXT_texture_sRGB_decode
;
4310 GLboolean EXT_texture_swizzle
;
4311 GLboolean EXT_texture_type_2_10_10_10_REV
;
4312 GLboolean EXT_transform_feedback
;
4313 GLboolean EXT_timer_query
;
4314 GLboolean EXT_vertex_array_bgra
;
4315 GLboolean EXT_window_rectangles
;
4316 GLboolean OES_copy_image
;
4317 GLboolean OES_primitive_bounding_box
;
4318 GLboolean OES_sample_variables
;
4319 GLboolean OES_standard_derivatives
;
4320 GLboolean OES_texture_buffer
;
4321 GLboolean OES_texture_cube_map_array
;
4322 GLboolean OES_viewport_array
;
4323 /* vendor extensions */
4324 GLboolean AMD_performance_monitor
;
4325 GLboolean AMD_pinned_memory
;
4326 GLboolean AMD_seamless_cubemap_per_texture
;
4327 GLboolean AMD_vertex_shader_layer
;
4328 GLboolean AMD_vertex_shader_viewport_index
;
4329 GLboolean ANDROID_extension_pack_es31a
;
4330 GLboolean APPLE_object_purgeable
;
4331 GLboolean ATI_meminfo
;
4332 GLboolean ATI_texture_compression_3dc
;
4333 GLboolean ATI_texture_mirror_once
;
4334 GLboolean ATI_texture_env_combine3
;
4335 GLboolean ATI_fragment_shader
;
4336 GLboolean ATI_separate_stencil
;
4337 GLboolean GREMEDY_string_marker
;
4338 GLboolean INTEL_conservative_rasterization
;
4339 GLboolean INTEL_performance_query
;
4340 GLboolean KHR_blend_equation_advanced
;
4341 GLboolean KHR_blend_equation_advanced_coherent
;
4342 GLboolean KHR_robustness
;
4343 GLboolean KHR_texture_compression_astc_hdr
;
4344 GLboolean KHR_texture_compression_astc_ldr
;
4345 GLboolean KHR_texture_compression_astc_sliced_3d
;
4346 GLboolean MESA_tile_raster_order
;
4347 GLboolean MESA_pack_invert
;
4348 GLboolean EXT_shader_framebuffer_fetch
;
4349 GLboolean EXT_shader_framebuffer_fetch_non_coherent
;
4350 GLboolean MESA_shader_integer_functions
;
4351 GLboolean MESA_ycbcr_texture
;
4352 GLboolean NV_conditional_render
;
4353 GLboolean NV_fill_rectangle
;
4354 GLboolean NV_fog_distance
;
4355 GLboolean NV_point_sprite
;
4356 GLboolean NV_primitive_restart
;
4357 GLboolean NV_texture_barrier
;
4358 GLboolean NV_texture_env_combine4
;
4359 GLboolean NV_texture_rectangle
;
4360 GLboolean NV_vdpau_interop
;
4361 GLboolean NVX_gpu_memory_info
;
4362 GLboolean TDFX_texture_compression_FXT1
;
4363 GLboolean OES_EGL_image
;
4364 GLboolean OES_draw_texture
;
4365 GLboolean OES_depth_texture_cube_map
;
4366 GLboolean OES_EGL_image_external
;
4367 GLboolean OES_texture_float
;
4368 GLboolean OES_texture_float_linear
;
4369 GLboolean OES_texture_half_float
;
4370 GLboolean OES_texture_half_float_linear
;
4371 GLboolean OES_compressed_ETC1_RGB8_texture
;
4372 GLboolean OES_geometry_shader
;
4373 GLboolean OES_texture_compression_astc
;
4374 GLboolean extension_sentinel
;
4375 /** The extension string */
4376 const GLubyte
*String
;
4377 /** Number of supported extensions */
4380 * The context version which extension helper functions compare against.
4381 * By default, the value is equal to ctx->Version. This changes to ~0
4382 * while meta is in progress.
4386 * Force-enabled, yet unrecognized, extensions.
4387 * See _mesa_one_time_init_extension_overrides()
4389 #define MAX_UNRECOGNIZED_EXTENSIONS 16
4390 const char *unrecognized_extensions
[MAX_UNRECOGNIZED_EXTENSIONS
];
4395 * A stack of matrices (projection, modelview, color, texture, etc).
4397 struct gl_matrix_stack
4399 GLmatrix
*Top
; /**< points into Stack */
4400 GLmatrix
*Stack
; /**< array [MaxDepth] of GLmatrix */
4401 unsigned StackSize
; /**< Number of elements in Stack */
4402 GLuint Depth
; /**< 0 <= Depth < MaxDepth */
4403 GLuint MaxDepth
; /**< size of Stack[] array */
4404 GLuint DirtyFlag
; /**< _NEW_MODELVIEW or _NEW_PROJECTION, for example */
4409 * \name Bits for image transfer operations
4410 * \sa __struct gl_contextRec::ImageTransferState.
4413 #define IMAGE_SCALE_BIAS_BIT 0x1
4414 #define IMAGE_SHIFT_OFFSET_BIT 0x2
4415 #define IMAGE_MAP_COLOR_BIT 0x4
4416 #define IMAGE_CLAMP_BIT 0x800
4419 /** Pixel Transfer ops */
4420 #define IMAGE_BITS (IMAGE_SCALE_BIAS_BIT | \
4421 IMAGE_SHIFT_OFFSET_BIT | \
4422 IMAGE_MAP_COLOR_BIT)
4426 * \name Bits to indicate what state has changed.
4429 #define _NEW_MODELVIEW (1u << 0) /**< gl_context::ModelView */
4430 #define _NEW_PROJECTION (1u << 1) /**< gl_context::Projection */
4431 #define _NEW_TEXTURE_MATRIX (1u << 2) /**< gl_context::TextureMatrix */
4432 #define _NEW_COLOR (1u << 3) /**< gl_context::Color */
4433 #define _NEW_DEPTH (1u << 4) /**< gl_context::Depth */
4434 #define _NEW_EVAL (1u << 5) /**< gl_context::Eval, EvalMap */
4435 #define _NEW_FOG (1u << 6) /**< gl_context::Fog */
4436 #define _NEW_HINT (1u << 7) /**< gl_context::Hint */
4437 #define _NEW_LIGHT (1u << 8) /**< gl_context::Light */
4438 #define _NEW_LINE (1u << 9) /**< gl_context::Line */
4439 #define _NEW_PIXEL (1u << 10) /**< gl_context::Pixel */
4440 #define _NEW_POINT (1u << 11) /**< gl_context::Point */
4441 #define _NEW_POLYGON (1u << 12) /**< gl_context::Polygon */
4442 #define _NEW_POLYGONSTIPPLE (1u << 13) /**< gl_context::PolygonStipple */
4443 #define _NEW_SCISSOR (1u << 14) /**< gl_context::Scissor */
4444 #define _NEW_STENCIL (1u << 15) /**< gl_context::Stencil */
4445 #define _NEW_TEXTURE_OBJECT (1u << 16) /**< gl_context::Texture (bindings only) */
4446 #define _NEW_TRANSFORM (1u << 17) /**< gl_context::Transform */
4447 #define _NEW_VIEWPORT (1u << 18) /**< gl_context::Viewport */
4448 #define _NEW_TEXTURE_STATE (1u << 19) /**< gl_context::Texture (states only) */
4449 #define _NEW_ARRAY (1u << 20) /**< gl_context::Array */
4450 #define _NEW_RENDERMODE (1u << 21) /**< gl_context::RenderMode, etc */
4451 #define _NEW_BUFFERS (1u << 22) /**< gl_context::Visual, DrawBuffer, */
4452 #define _NEW_CURRENT_ATTRIB (1u << 23) /**< gl_context::Current */
4453 #define _NEW_MULTISAMPLE (1u << 24) /**< gl_context::Multisample */
4454 #define _NEW_TRACK_MATRIX (1u << 25) /**< gl_context::VertexProgram */
4455 #define _NEW_PROGRAM (1u << 26) /**< New program/shader state */
4456 #define _NEW_PROGRAM_CONSTANTS (1u << 27)
4458 #define _NEW_FRAG_CLAMP (1u << 29)
4459 /* gap, re-use for core Mesa state only; use ctx->DriverFlags otherwise */
4460 #define _NEW_VARYING_VP_INPUTS (1u << 31) /**< gl_context::varying_vp_inputs */
4466 * Composite state flags
4469 #define _NEW_TEXTURE (_NEW_TEXTURE_OBJECT | _NEW_TEXTURE_STATE)
4471 #define _MESA_NEW_NEED_EYE_COORDS (_NEW_LIGHT | \
4472 _NEW_TEXTURE_STATE | \
4477 #define _MESA_NEW_SEPARATE_SPECULAR (_NEW_LIGHT | \
4487 /* This has to be included here. */
4491 /** Opaque declaration of display list payload data type */
4492 union gl_dlist_node
;
4496 * Per-display list information.
4498 struct gl_display_list
4501 GLbitfield Flags
; /**< DLIST_x flags */
4502 GLchar
*Label
; /**< GL_KHR_debug */
4503 /** The dlist commands are in a linked list of nodes */
4504 union gl_dlist_node
*Head
;
4509 * State used during display list compilation and execution.
4511 struct gl_dlist_state
4513 struct gl_display_list
*CurrentList
; /**< List currently being compiled */
4514 union gl_dlist_node
*CurrentBlock
; /**< Pointer to current block of nodes */
4515 GLuint CurrentPos
; /**< Index into current block of nodes */
4516 GLuint CallDepth
; /**< Current recursion calling depth */
4518 GLvertexformat ListVtxfmt
;
4520 GLubyte ActiveAttribSize
[VERT_ATTRIB_MAX
];
4521 GLfloat CurrentAttrib
[VERT_ATTRIB_MAX
][4];
4523 GLubyte ActiveMaterialSize
[MAT_ATTRIB_MAX
];
4524 GLfloat CurrentMaterial
[MAT_ATTRIB_MAX
][4];
4527 /* State known to have been set by the currently-compiling display
4528 * list. Used to eliminate some redundant state changes.
4530 GLenum16 ShadeModel
;
4536 * These are a mapping of the GL_ARB_debug_output/GL_KHR_debug enums
4537 * to small enums suitable for use as an array index.
4540 enum mesa_debug_source
4542 MESA_DEBUG_SOURCE_API
,
4543 MESA_DEBUG_SOURCE_WINDOW_SYSTEM
,
4544 MESA_DEBUG_SOURCE_SHADER_COMPILER
,
4545 MESA_DEBUG_SOURCE_THIRD_PARTY
,
4546 MESA_DEBUG_SOURCE_APPLICATION
,
4547 MESA_DEBUG_SOURCE_OTHER
,
4548 MESA_DEBUG_SOURCE_COUNT
4551 enum mesa_debug_type
4553 MESA_DEBUG_TYPE_ERROR
,
4554 MESA_DEBUG_TYPE_DEPRECATED
,
4555 MESA_DEBUG_TYPE_UNDEFINED
,
4556 MESA_DEBUG_TYPE_PORTABILITY
,
4557 MESA_DEBUG_TYPE_PERFORMANCE
,
4558 MESA_DEBUG_TYPE_OTHER
,
4559 MESA_DEBUG_TYPE_MARKER
,
4560 MESA_DEBUG_TYPE_PUSH_GROUP
,
4561 MESA_DEBUG_TYPE_POP_GROUP
,
4562 MESA_DEBUG_TYPE_COUNT
4565 enum mesa_debug_severity
4567 MESA_DEBUG_SEVERITY_LOW
,
4568 MESA_DEBUG_SEVERITY_MEDIUM
,
4569 MESA_DEBUG_SEVERITY_HIGH
,
4570 MESA_DEBUG_SEVERITY_NOTIFICATION
,
4571 MESA_DEBUG_SEVERITY_COUNT
4577 * Driver-specific state flags.
4579 * These are or'd with gl_context::NewDriverState to notify a driver about
4580 * a state change. The driver sets the flags at context creation and
4581 * the meaning of the bits set is opaque to core Mesa.
4583 struct gl_driver_flags
4585 /** gl_context::Array::_DrawArrays (vertex array state) */
4588 /** gl_context::TransformFeedback::CurrentObject */
4589 uint64_t NewTransformFeedback
;
4591 /** gl_context::TransformFeedback::CurrentObject::shader_program */
4592 uint64_t NewTransformFeedbackProg
;
4594 /** gl_context::RasterDiscard */
4595 uint64_t NewRasterizerDiscard
;
4597 /** gl_context::TileRasterOrder* */
4598 uint64_t NewTileRasterOrder
;
4601 * gl_context::UniformBufferBindings
4602 * gl_shader_program::UniformBlocks
4604 uint64_t NewUniformBuffer
;
4607 * gl_context::ShaderStorageBufferBindings
4608 * gl_shader_program::ShaderStorageBlocks
4610 uint64_t NewShaderStorageBuffer
;
4612 uint64_t NewTextureBuffer
;
4615 * gl_context::AtomicBufferBindings
4617 uint64_t NewAtomicBuffer
;
4620 * gl_context::ImageUnits
4622 uint64_t NewImageUnits
;
4625 * gl_context::TessCtrlProgram::patch_default_*
4627 uint64_t NewDefaultTessLevels
;
4630 * gl_context::IntelConservativeRasterization
4632 uint64_t NewIntelConservativeRasterization
;
4635 * gl_context::Scissor::WindowRects
4637 uint64_t NewWindowRectangles
;
4639 /** gl_context::Color::sRGBEnabled */
4640 uint64_t NewFramebufferSRGB
;
4642 /** gl_context::Scissor::EnableFlags */
4643 uint64_t NewScissorTest
;
4645 /** gl_context::Scissor::ScissorArray */
4646 uint64_t NewScissorRect
;
4648 /** gl_context::Color::Alpha* */
4649 uint64_t NewAlphaTest
;
4651 /** gl_context::Color::Blend/Dither */
4654 /** gl_context::Color::BlendColor */
4655 uint64_t NewBlendColor
;
4657 /** gl_context::Color::Color/Index */
4658 uint64_t NewColorMask
;
4660 /** gl_context::Depth */
4663 /** gl_context::Color::LogicOp/ColorLogicOp/IndexLogicOp */
4664 uint64_t NewLogicOp
;
4666 /** gl_context::Multisample::Enabled */
4667 uint64_t NewMultisampleEnable
;
4669 /** gl_context::Multisample::SampleAlphaTo* */
4670 uint64_t NewSampleAlphaToXEnable
;
4672 /** gl_context::Multisample::SampleCoverage/SampleMaskValue */
4673 uint64_t NewSampleMask
;
4675 /** gl_context::Multisample::(Min)SampleShading */
4676 uint64_t NewSampleShading
;
4678 /** gl_context::Stencil */
4679 uint64_t NewStencil
;
4681 /** gl_context::Transform::ClipOrigin/ClipDepthMode */
4682 uint64_t NewClipControl
;
4684 /** gl_context::Transform::EyeUserPlane */
4685 uint64_t NewClipPlane
;
4687 /** gl_context::Transform::ClipPlanesEnabled */
4688 uint64_t NewClipPlaneEnable
;
4690 /** gl_context::Transform::DepthClamp */
4691 uint64_t NewDepthClamp
;
4693 /** gl_context::Line */
4694 uint64_t NewLineState
;
4696 /** gl_context::Polygon */
4697 uint64_t NewPolygonState
;
4699 /** gl_context::PolygonStipple */
4700 uint64_t NewPolygonStipple
;
4702 /** gl_context::ViewportArray */
4703 uint64_t NewViewport
;
4705 /** Shader constants (uniforms, program parameters, state constants) */
4706 uint64_t NewShaderConstants
[MESA_SHADER_STAGES
];
4709 struct gl_buffer_binding
4711 struct gl_buffer_object
*BufferObject
;
4712 /** Start of uniform block data in the buffer */
4714 /** Size of data allowed to be referenced from the buffer (in bytes) */
4717 * glBindBufferBase() indicates that the Size should be ignored and only
4718 * limited by the current size of the BufferObject.
4720 GLboolean AutomaticSize
;
4724 * ARB_shader_image_load_store image unit.
4726 struct gl_image_unit
4729 * Texture object bound to this unit.
4731 struct gl_texture_object
*TexObj
;
4734 * Level of the texture object bound to this unit.
4739 * \c GL_TRUE if the whole level is bound as an array of layers, \c
4740 * GL_FALSE if only some specific layer of the texture is bound.
4746 * Layer of the texture object bound to this unit as specified by the
4752 * Layer of the texture object bound to this unit, or zero if
4758 * Access allowed to this texture image. Either \c GL_READ_ONLY,
4759 * \c GL_WRITE_ONLY or \c GL_READ_WRITE.
4764 * GL internal format that determines the interpretation of the
4765 * image memory when shader image operations are performed through
4771 * Mesa format corresponding to \c Format.
4773 mesa_format _ActualFormat
:16;
4777 * Shader subroutines storage
4779 struct gl_subroutine_index_binding
4785 struct gl_texture_handle_object
4787 struct gl_texture_object
*texObj
;
4788 struct gl_sampler_object
*sampObj
;
4792 struct gl_image_handle_object
4794 struct gl_image_unit imgObj
;
4798 struct gl_memory_object
4800 GLuint Name
; /**< hash table ID/name */
4801 GLboolean Immutable
; /**< denotes mutability state of parameters */
4802 GLboolean Dedicated
; /**< import memory from a dedicated allocation */
4805 struct gl_semaphore_object
4807 GLuint Name
; /**< hash table ID/name */
4811 * Mesa rendering context.
4813 * This is the central context data structure for Mesa. Almost all
4814 * OpenGL state is contained in this structure.
4815 * Think of this as a base class from which device drivers will derive
4820 /** State possibly shared with other contexts in the address space */
4821 struct gl_shared_state
*Shared
;
4823 /** \name API function pointer tables */
4828 * The current dispatch table for non-displaylist-saving execution, either
4829 * BeginEnd or OutsideBeginEnd
4831 struct _glapi_table
*Exec
;
4833 * The normal dispatch table for non-displaylist-saving, non-begin/end
4835 struct _glapi_table
*OutsideBeginEnd
;
4836 /** The dispatch table used between glNewList() and glEndList() */
4837 struct _glapi_table
*Save
;
4839 * The dispatch table used between glBegin() and glEnd() (outside of a
4840 * display list). Only valid functions between those two are set, which is
4841 * mostly just the set in a GLvertexformat struct.
4843 struct _glapi_table
*BeginEnd
;
4845 * Dispatch table for when a graphics reset has happened.
4847 struct _glapi_table
*ContextLost
;
4849 * Dispatch table used to marshal API calls from the client program to a
4850 * separate server thread. NULL if API calls are not being marshalled to
4853 struct _glapi_table
*MarshalExec
;
4855 * Dispatch table currently in use for fielding API calls from the client
4856 * program. If API calls are being marshalled to another thread, this ==
4857 * MarshalExec. Otherwise it == CurrentServerDispatch.
4859 struct _glapi_table
*CurrentClientDispatch
;
4862 * Dispatch table currently in use for performing API calls. == Save or
4865 struct _glapi_table
*CurrentServerDispatch
;
4869 struct glthread_state
*GLThread
;
4871 struct gl_config Visual
;
4872 struct gl_framebuffer
*DrawBuffer
; /**< buffer for writing */
4873 struct gl_framebuffer
*ReadBuffer
; /**< buffer for reading */
4874 struct gl_framebuffer
*WinSysDrawBuffer
; /**< set with MakeCurrent */
4875 struct gl_framebuffer
*WinSysReadBuffer
; /**< set with MakeCurrent */
4878 * Device driver function pointer table
4880 struct dd_function_table Driver
;
4882 /** Core/Driver constants */
4883 struct gl_constants Const
;
4885 /** \name The various 4x4 matrix stacks */
4887 struct gl_matrix_stack ModelviewMatrixStack
;
4888 struct gl_matrix_stack ProjectionMatrixStack
;
4889 struct gl_matrix_stack TextureMatrixStack
[MAX_TEXTURE_UNITS
];
4890 struct gl_matrix_stack ProgramMatrixStack
[MAX_PROGRAM_MATRICES
];
4891 struct gl_matrix_stack
*CurrentStack
; /**< Points to one of the above stacks */
4894 /** Combined modelview and projection matrix */
4895 GLmatrix _ModelProjectMatrix
;
4897 /** \name Display lists */
4898 struct gl_dlist_state ListState
;
4900 GLboolean ExecuteFlag
; /**< Execute GL commands? */
4901 GLboolean CompileFlag
; /**< Compile GL commands into display list? */
4903 /** Extension information */
4904 struct gl_extensions Extensions
;
4906 /** GL version integer, for example 31 for GL 3.1, or 20 for GLES 2.0. */
4908 char *VersionString
;
4910 /** \name State attribute stack (for glPush/PopAttrib) */
4912 GLuint AttribStackDepth
;
4913 struct gl_attrib_node
*AttribStack
[MAX_ATTRIB_STACK_DEPTH
];
4916 /** \name Renderer attribute groups
4918 * We define a struct for each attribute group to make pushing and popping
4919 * attributes easy. Also it's a good organization.
4922 struct gl_accum_attrib Accum
; /**< Accum buffer attributes */
4923 struct gl_colorbuffer_attrib Color
; /**< Color buffer attributes */
4924 struct gl_current_attrib Current
; /**< Current attributes */
4925 struct gl_depthbuffer_attrib Depth
; /**< Depth buffer attributes */
4926 struct gl_eval_attrib Eval
; /**< Eval attributes */
4927 struct gl_fog_attrib Fog
; /**< Fog attributes */
4928 struct gl_hint_attrib Hint
; /**< Hint attributes */
4929 struct gl_light_attrib Light
; /**< Light attributes */
4930 struct gl_line_attrib Line
; /**< Line attributes */
4931 struct gl_list_attrib List
; /**< List attributes */
4932 struct gl_multisample_attrib Multisample
;
4933 struct gl_pixel_attrib Pixel
; /**< Pixel attributes */
4934 struct gl_point_attrib Point
; /**< Point attributes */
4935 struct gl_polygon_attrib Polygon
; /**< Polygon attributes */
4936 GLuint PolygonStipple
[32]; /**< Polygon stipple */
4937 struct gl_scissor_attrib Scissor
; /**< Scissor attributes */
4938 struct gl_stencil_attrib Stencil
; /**< Stencil buffer attributes */
4939 struct gl_texture_attrib Texture
; /**< Texture attributes */
4940 struct gl_transform_attrib Transform
; /**< Transformation attributes */
4941 struct gl_viewport_attrib ViewportArray
[MAX_VIEWPORTS
]; /**< Viewport attributes */
4944 /** \name Client attribute stack */
4946 GLuint ClientAttribStackDepth
;
4947 struct gl_attrib_node
*ClientAttribStack
[MAX_CLIENT_ATTRIB_STACK_DEPTH
];
4950 /** \name Client attribute groups */
4952 struct gl_array_attrib Array
; /**< Vertex arrays */
4953 struct gl_pixelstore_attrib Pack
; /**< Pixel packing */
4954 struct gl_pixelstore_attrib Unpack
; /**< Pixel unpacking */
4955 struct gl_pixelstore_attrib DefaultPacking
; /**< Default params */
4958 /** \name Other assorted state (not pushed/popped on attribute stack) */
4960 struct gl_pixelmaps PixelMaps
;
4962 struct gl_evaluators EvalMap
; /**< All evaluators */
4963 struct gl_feedback Feedback
; /**< Feedback */
4964 struct gl_selection Select
; /**< Selection */
4966 struct gl_program_state Program
; /**< general program state */
4967 struct gl_vertex_program_state VertexProgram
;
4968 struct gl_fragment_program_state FragmentProgram
;
4969 struct gl_geometry_program_state GeometryProgram
;
4970 struct gl_compute_program_state ComputeProgram
;
4971 struct gl_tess_ctrl_program_state TessCtrlProgram
;
4972 struct gl_tess_eval_program_state TessEvalProgram
;
4973 struct gl_ati_fragment_shader_state ATIFragmentShader
;
4975 struct gl_pipeline_shader_state Pipeline
; /**< GLSL pipeline shader object state */
4976 struct gl_pipeline_object Shader
; /**< GLSL shader object state */
4979 * Current active shader pipeline state
4981 * Almost all internal users want ::_Shader instead of ::Shader. The
4982 * exceptions are bits of legacy GLSL API that do not know about separate
4985 * If a program is active via \c glUseProgram, this will point to
4988 * If a program pipeline is active via \c glBindProgramPipeline, this will
4989 * point to \c ::Pipeline.Current.
4991 * If neither a program nor a program pipeline is active, this will point to
4992 * \c ::Pipeline.Default. This ensures that \c ::_Shader will never be
4995 struct gl_pipeline_object
*_Shader
;
4997 struct gl_query_state Query
; /**< occlusion, timer queries */
4999 struct gl_transform_feedback_state TransformFeedback
;
5001 struct gl_perf_monitor_state PerfMonitor
;
5002 struct gl_perf_query_state PerfQuery
;
5004 struct gl_buffer_object
*DrawIndirectBuffer
; /** < GL_ARB_draw_indirect */
5005 struct gl_buffer_object
*ParameterBuffer
; /** < GL_ARB_indirect_parameters */
5006 struct gl_buffer_object
*DispatchIndirectBuffer
; /** < GL_ARB_compute_shader */
5008 struct gl_buffer_object
*CopyReadBuffer
; /**< GL_ARB_copy_buffer */
5009 struct gl_buffer_object
*CopyWriteBuffer
; /**< GL_ARB_copy_buffer */
5011 struct gl_buffer_object
*QueryBuffer
; /**< GL_ARB_query_buffer_object */
5014 * Current GL_ARB_uniform_buffer_object binding referenced by
5015 * GL_UNIFORM_BUFFER target for glBufferData, glMapBuffer, etc.
5017 struct gl_buffer_object
*UniformBuffer
;
5020 * Current GL_ARB_shader_storage_buffer_object binding referenced by
5021 * GL_SHADER_STORAGE_BUFFER target for glBufferData, glMapBuffer, etc.
5023 struct gl_buffer_object
*ShaderStorageBuffer
;
5026 * Array of uniform buffers for GL_ARB_uniform_buffer_object and GL 3.1.
5027 * This is set up using glBindBufferRange() or glBindBufferBase(). They are
5028 * associated with uniform blocks by glUniformBlockBinding()'s state in the
5031 struct gl_buffer_binding
5032 UniformBufferBindings
[MAX_COMBINED_UNIFORM_BUFFERS
];
5035 * Array of shader storage buffers for ARB_shader_storage_buffer_object
5036 * and GL 4.3. This is set up using glBindBufferRange() or
5037 * glBindBufferBase(). They are associated with shader storage blocks by
5038 * glShaderStorageBlockBinding()'s state in the shader program.
5040 struct gl_buffer_binding
5041 ShaderStorageBufferBindings
[MAX_COMBINED_SHADER_STORAGE_BUFFERS
];
5044 * Object currently associated with the GL_ATOMIC_COUNTER_BUFFER
5047 struct gl_buffer_object
*AtomicBuffer
;
5050 * Object currently associated w/ the GL_EXTERNAL_VIRTUAL_MEMORY_BUFFER_AMD
5053 struct gl_buffer_object
*ExternalVirtualMemoryBuffer
;
5056 * Array of atomic counter buffer binding points.
5058 struct gl_buffer_binding
5059 AtomicBufferBindings
[MAX_COMBINED_ATOMIC_BUFFERS
];
5062 * Array of image units for ARB_shader_image_load_store.
5064 struct gl_image_unit ImageUnits
[MAX_IMAGE_UNITS
];
5066 struct gl_subroutine_index_binding SubroutineIndex
[MESA_SHADER_STAGES
];
5069 struct gl_meta_state
*Meta
; /**< for "meta" operations */
5071 /* GL_EXT_framebuffer_object */
5072 struct gl_renderbuffer
*CurrentRenderbuffer
;
5074 GLenum16 ErrorValue
; /**< Last error code */
5077 * Recognize and silence repeated error debug messages in buggy apps.
5079 const char *ErrorDebugFmtString
;
5080 GLuint ErrorDebugCount
;
5082 /* GL_ARB_debug_output/GL_KHR_debug */
5083 simple_mtx_t DebugMutex
;
5084 struct gl_debug_state
*Debug
;
5086 GLenum16 RenderMode
; /**< either GL_RENDER, GL_SELECT, GL_FEEDBACK */
5087 GLbitfield NewState
; /**< bitwise-or of _NEW_* flags */
5088 uint64_t NewDriverState
; /**< bitwise-or of flags from DriverFlags */
5090 struct gl_driver_flags DriverFlags
;
5092 GLboolean ViewportInitialized
; /**< has viewport size been initialized? */
5094 GLbitfield varying_vp_inputs
; /**< mask of VERT_BIT_* flags */
5096 /** \name Derived state */
5097 GLbitfield _ImageTransferState
;/**< bitwise-or of IMAGE_*_BIT flags */
5098 GLfloat _EyeZDir
[3];
5099 GLfloat _ModelViewInvScale
; /* may be for model- or eyespace lighting */
5100 GLfloat _ModelViewInvScaleEyespace
; /* always factor defined in spec */
5101 GLboolean _NeedEyeCoords
;
5102 GLboolean _ForceEyeCoords
;
5104 GLuint TextureStateTimestamp
; /**< detect changes to shared state */
5106 struct gl_list_extensions
*ListExt
; /**< driver dlist extensions */
5108 /** \name For debugging/development only */
5110 GLboolean FirstTimeCurrent
;
5114 * False if this context was created without a config. This is needed
5115 * because the initial state of glDrawBuffers depends on this
5117 GLboolean HasConfig
;
5119 GLboolean TextureFormatSupported
[MESA_FORMAT_COUNT
];
5121 GLboolean RasterDiscard
; /**< GL_RASTERIZER_DISCARD */
5122 GLboolean IntelConservativeRasterization
; /**< GL_INTEL_CONSERVATIVE_RASTERIZATION */
5124 /** Does glVertexAttrib(0) alias glVertex()? */
5125 bool _AttribZeroAliasesVertex
;
5128 * When set, TileRasterOrderIncreasingX/Y control the order that a tiled
5129 * renderer's tiles should be excecuted, to meet the requirements of
5130 * GL_MESA_tile_raster_order.
5132 GLboolean TileRasterOrderFixed
;
5133 GLboolean TileRasterOrderIncreasingX
;
5134 GLboolean TileRasterOrderIncreasingY
;
5137 * \name Hooks for module contexts.
5139 * These will eventually live in the driver or elsewhere.
5142 void *swrast_context
;
5143 void *swsetup_context
;
5144 void *swtnl_context
;
5145 struct vbo_context
*vbo_context
;
5146 struct st_context
*st
;
5151 * \name NV_vdpau_interop
5154 const void *vdpDevice
;
5155 const void *vdpGetProcAddress
;
5156 struct set
*vdpSurfaces
;
5160 * Has this context observed a GPU reset in any context in the share group?
5162 * Once this field becomes true, it is never reset to false.
5164 GLboolean ShareGroupReset
;
5167 * \name OES_primitive_bounding_box
5169 * Stores the arguments to glPrimitiveBoundingBox
5171 GLfloat PrimitiveBoundingBox
[8];
5173 struct disk_cache
*Cache
;
5176 * \name GL_ARB_bindless_texture
5179 struct hash_table_u64
*ResidentTextureHandles
;
5180 struct hash_table_u64
*ResidentImageHandles
;
5185 * Information about memory usage. All sizes are in kilobytes.
5187 struct gl_memory_info
5189 unsigned total_device_memory
; /**< size of device memory, e.g. VRAM */
5190 unsigned avail_device_memory
; /**< free device memory at the moment */
5191 unsigned total_staging_memory
; /**< size of staging memory, e.g. GART */
5192 unsigned avail_staging_memory
; /**< free staging memory at the moment */
5193 unsigned device_memory_evicted
; /**< size of memory evicted (monotonic counter) */
5194 unsigned nr_device_memory_evictions
; /**< # of evictions (monotonic counter) */
5198 extern int MESA_VERBOSE
;
5199 extern int MESA_DEBUG_FLAGS
;
5201 # define MESA_VERBOSE 0
5202 # define MESA_DEBUG_FLAGS 0
5206 /** The MESA_VERBOSE var is a bitmask of these flags */
5209 VERBOSE_VARRAY
= 0x0001,
5210 VERBOSE_TEXTURE
= 0x0002,
5211 VERBOSE_MATERIAL
= 0x0004,
5212 VERBOSE_PIPELINE
= 0x0008,
5213 VERBOSE_DRIVER
= 0x0010,
5214 VERBOSE_STATE
= 0x0020,
5215 VERBOSE_API
= 0x0040,
5216 VERBOSE_DISPLAY_LIST
= 0x0100,
5217 VERBOSE_LIGHTING
= 0x0200,
5218 VERBOSE_PRIMS
= 0x0400,
5219 VERBOSE_VERTS
= 0x0800,
5220 VERBOSE_DISASSEM
= 0x1000,
5221 VERBOSE_DRAW
= 0x2000,
5222 VERBOSE_SWAPBUFFERS
= 0x4000
5226 /** The MESA_DEBUG_FLAGS var is a bitmask of these flags */
5229 DEBUG_SILENT
= (1 << 0),
5230 DEBUG_ALWAYS_FLUSH
= (1 << 1),
5231 DEBUG_INCOMPLETE_TEXTURE
= (1 << 2),
5232 DEBUG_INCOMPLETE_FBO
= (1 << 3),
5233 DEBUG_CONTEXT
= (1 << 4)
5240 #endif /* MTYPES_H */