1 /* $Id: mtypes.h,v 1.64 2002/02/13 00:53:19 keithw Exp $ */
4 * Mesa 3-D graphics library
7 * Copyright (C) 1999-2002 Brian Paul All Rights Reserved.
9 * Permission is hereby granted, free of charge, to any person obtaining a
10 * copy of this software and associated documentation files (the "Software"),
11 * to deal in the Software without restriction, including without limitation
12 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
13 * and/or sell copies of the Software, and to permit persons to whom the
14 * Software is furnished to do so, subject to the following conditions:
16 * The above copyright notice and this permission notice shall be included
17 * in all copies or substantial portions of the Software.
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
20 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
22 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
23 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
24 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
29 * \brief Main Mesa data structures.
37 #include "config.h" /* Hardwired parameters */
38 #include "glapitable.h"
41 #include "math/m_matrix.h" /* GLmatrix */
43 #if defined(MESA_TRACE)
44 #include "Trace/tr_context.h"
48 /* Please try to mark derived values with a leading underscore ('_').
52 * Color channel data type:
55 typedef GLubyte GLchan
;
57 #define CHAN_MAXF 255.0F
58 #define CHAN_TYPE GL_UNSIGNED_BYTE
60 typedef GLushort GLchan
;
61 #define CHAN_MAX 65535
62 #define CHAN_MAXF 65535.0F
63 #define CHAN_TYPE GL_UNSIGNED_SHORT
65 typedef GLfloat GLchan
;
67 #define CHAN_MAXF 1.0F
68 #define CHAN_TYPE GL_FLOAT
70 #error "illegal number of color channel bits"
75 * Accumulation buffer data type:
78 typedef GLbyte GLaccum
;
80 typedef GLshort GLaccum
;
82 typedef GLfloat GLaccum
;
84 # error "illegal number of accumulation bits"
89 * Stencil buffer data type:
92 typedef GLubyte GLstencil
;
93 # define STENCIL_MAX 0xff
94 #elif STENCIL_BITS==16
95 typedef GLushort GLstencil
;
96 # define STENCIL_MAX 0xffff
98 # error "illegal number of stencil bits"
103 * Depth buffer data type:
105 typedef GLuint GLdepth
; /* Must be 32-bits! */
109 * Fixed point data type:
116 * Some forward type declarations
118 struct _mesa_HashTable
;
119 struct gl_texture_image
;
120 struct gl_texture_object
;
121 typedef struct __GLcontextRec GLcontext
;
122 typedef struct __GLcontextModesRec GLvisual
;
123 typedef struct gl_frame_buffer GLframebuffer
;
127 /* These define the aliases between numbered vertex attributes and
128 * conventional OpenGL vertex attributes. We use these values in
129 * quite a few places. New in Mesa 4.1.
131 #define VERT_ATTRIB_POS 0
132 #define VERT_ATTRIB_WEIGHT 1
133 #define VERT_ATTRIB_NORMAL 2
134 #define VERT_ATTRIB_COLOR0 3
135 #define VERT_ATTRIB_COLOR1 4
136 #define VERT_ATTRIB_FOG 5
137 #define VERT_ATTRIB_SIX 6
138 #define VERT_ATTRIB_SEVEN 7
139 #define VERT_ATTRIB_TEX0 8
140 #define VERT_ATTRIB_TEX1 9
141 #define VERT_ATTRIB_TEX2 10
142 #define VERT_ATTRIB_TEX3 11
143 #define VERT_ATTRIB_TEX4 12
144 #define VERT_ATTRIB_TEX5 13
145 #define VERT_ATTRIB_TEX6 14
146 #define VERT_ATTRIB_TEX7 15
147 #define VERT_ATTRIB_MAX 16
149 /* These are used in bitfields in many places */
150 #define VERT_BIT_POS (1 << VERT_ATTRIB_POS)
151 #define VERT_BIT_WEIGHT (1 << VERT_ATTRIB_WEIGHT)
152 #define VERT_BIT_NORMAL (1 << VERT_ATTRIB_NORMAL)
153 #define VERT_BIT_COLOR0 (1 << VERT_ATTRIB_COLOR0)
154 #define VERT_BIT_COLOR1 (1 << VERT_ATTRIB_COLOR1)
155 #define VERT_BIT_FOG (1 << VERT_ATTRIB_FOG)
156 #define VERT_BIT_SIX (1 << VERT_ATTRIB_SIX)
157 #define VERT_BIT_SEVEN (1 << VERT_ATTRIB_SEVEN)
158 #define VERT_BIT_TEX0 (1 << VERT_ATTRIB_TEX0)
159 #define VERT_BIT_TEX1 (1 << VERT_ATTRIB_TEX1)
160 #define VERT_BIT_TEX2 (1 << VERT_ATTRIB_TEX2)
161 #define VERT_BIT_TEX3 (1 << VERT_ATTRIB_TEX3)
162 #define VERT_BIT_TEX4 (1 << VERT_ATTRIB_TEX4)
163 #define VERT_BIT_TEX5 (1 << VERT_ATTRIB_TEX5)
164 #define VERT_BIT_TEX6 (1 << VERT_ATTRIB_TEX6)
165 #define VERT_BIT_TEX7 (1 << VERT_ATTRIB_TEX7)
167 #define VERT_BIT_TEX(u) (1 << (VERT_ATTRIB_TEX0 + (u)))
172 * Maximum number of temporary vertices required for clipping. (Used
173 * in array_cache and tnl modules).
175 #define MAX_CLIPPED_VERTICES ((2 * (6 + MAX_CLIP_PLANES))+1)
178 /* Data structure for color tables */
179 struct gl_color_table
{
180 GLenum Format
; /* GL_ALPHA, GL_RGB, GL_RGB, etc */
182 GLuint Size
; /* number of entries (rows) in table */
183 GLvoid
*Table
; /* either GLfloat * or GLchan * */
184 GLboolean FloatTable
; /* are entries stored as floats? */
189 GLubyte LuminanceSize
;
190 GLubyte IntensitySize
;
195 * Bit flags used for updating material values.
197 #define FRONT_AMBIENT_BIT 0x1
198 #define BACK_AMBIENT_BIT 0x2
199 #define FRONT_DIFFUSE_BIT 0x4
200 #define BACK_DIFFUSE_BIT 0x8
201 #define FRONT_SPECULAR_BIT 0x10
202 #define BACK_SPECULAR_BIT 0x20
203 #define FRONT_EMISSION_BIT 0x40
204 #define BACK_EMISSION_BIT 0x80
205 #define FRONT_SHININESS_BIT 0x100
206 #define BACK_SHININESS_BIT 0x200
207 #define FRONT_INDEXES_BIT 0x400
208 #define BACK_INDEXES_BIT 0x800
210 #define FRONT_MATERIAL_BITS (FRONT_EMISSION_BIT | FRONT_AMBIENT_BIT | \
211 FRONT_DIFFUSE_BIT | FRONT_SPECULAR_BIT | \
212 FRONT_SHININESS_BIT | FRONT_INDEXES_BIT)
214 #define BACK_MATERIAL_BITS (BACK_EMISSION_BIT | BACK_AMBIENT_BIT | \
215 BACK_DIFFUSE_BIT | BACK_SPECULAR_BIT | \
216 BACK_SHININESS_BIT | BACK_INDEXES_BIT)
218 #define ALL_MATERIAL_BITS (FRONT_MATERIAL_BITS | BACK_MATERIAL_BITS)
223 * Specular exponent and material shininess lookup table sizes:
225 #define EXP_TABLE_SIZE 512
226 #define SHINE_TABLE_SIZE 256
228 struct gl_shine_tab
{
229 struct gl_shine_tab
*next
, *prev
;
230 GLfloat tab
[SHINE_TABLE_SIZE
+1];
237 struct gl_light
*next
; /* double linked list with sentinel */
238 struct gl_light
*prev
;
240 GLfloat Ambient
[4]; /* ambient color */
241 GLfloat Diffuse
[4]; /* diffuse color */
242 GLfloat Specular
[4]; /* specular color */
243 GLfloat EyePosition
[4]; /* position in eye coordinates */
244 GLfloat EyeDirection
[4]; /* spotlight dir in eye coordinates */
245 GLfloat SpotExponent
;
246 GLfloat SpotCutoff
; /* in degress */
247 GLfloat _CosCutoff
; /* = MAX(0, cos(SpotCutoff)) */
248 GLfloat ConstantAttenuation
;
249 GLfloat LinearAttenuation
;
250 GLfloat QuadraticAttenuation
;
251 GLboolean Enabled
; /* On/off flag */
254 GLuint _Flags
; /* State */
256 GLfloat _Position
[4]; /* position in eye/obj coordinates */
257 GLfloat _VP_inf_norm
[3]; /* Norm direction to infinite light */
258 GLfloat _h_inf_norm
[3]; /* Norm( _VP_inf_norm + <0,0,1> ) */
259 GLfloat _NormDirection
[4]; /* normalized spotlight direction */
260 GLfloat _VP_inf_spot_attenuation
;
262 GLfloat _SpotExpTable
[EXP_TABLE_SIZE
][2]; /* to replace a pow() call */
263 GLfloat _MatAmbient
[2][3]; /* material ambient * light ambient */
264 GLfloat _MatDiffuse
[2][3]; /* material diffuse * light diffuse */
265 GLfloat _MatSpecular
[2][3]; /* material spec * light specular */
266 GLfloat _dli
; /* CI diffuse light intensity */
267 GLfloat _sli
; /* CI specular light intensity */
271 struct gl_lightmodel
{
272 GLfloat Ambient
[4]; /* ambient color */
273 GLboolean LocalViewer
; /* Local (or infinite) view point? */
274 GLboolean TwoSide
; /* Two (or one) sided lighting? */
275 GLenum ColorControl
; /* either GL_SINGLE_COLOR */
276 /* or GL_SEPARATE_SPECULAR_COLOR */
287 GLfloat AmbientIndex
; /* for color index lighting */
288 GLfloat DiffuseIndex
; /* for color index lighting */
289 GLfloat SpecularIndex
; /* for color index lighting */
294 * Attribute structures:
295 * We define a struct for each attribute group to make pushing and
296 * popping attributes easy. Also it's a good organization.
298 struct gl_accum_attrib
{
299 GLfloat ClearColor
[4]; /* Accumulation buffer clear color */
304 * Used in DrawDestMask below
306 #define FRONT_LEFT_BIT 1
307 #define FRONT_RIGHT_BIT 2
308 #define BACK_LEFT_BIT 4
309 #define BACK_RIGHT_BIT 8
312 struct gl_colorbuffer_attrib
{
313 GLuint ClearIndex
; /* Index to use for glClear */
314 GLchan ClearColor
[4]; /* Color to use for glClear */
316 GLuint IndexMask
; /* Color index write mask */
317 GLubyte ColorMask
[4]; /* Each flag is 0xff or 0x0 */
319 GLenum DrawBuffer
; /* Which buffer to draw into */
320 GLenum DriverDrawBuffer
; /* Current device driver dest buffer */
321 GLboolean MultiDrawBuffer
; /* Drawing to multiple buffers? */
322 GLubyte DrawDestMask
; /* bitwise-OR of bitflags above */
325 GLboolean AlphaEnabled
; /* Alpha test enabled flag */
326 GLenum AlphaFunc
; /* Alpha test function */
327 GLchan AlphaRef
; /* Alpha ref value as GLchan */
330 GLboolean BlendEnabled
; /* Blending enabled flag */
331 GLenum BlendSrcRGB
; /* Blending source operator */
332 GLenum BlendDstRGB
; /* Blending destination operator */
333 GLenum BlendSrcA
; /* GL_INGR_blend_func_separate */
334 GLenum BlendDstA
; /* GL_INGR_blend_func_separate */
335 GLenum BlendEquation
;
336 GLfloat BlendColor
[4];
339 GLenum LogicOp
; /* Logic operator */
340 GLboolean IndexLogicOpEnabled
; /* Color index logic op enabled flag */
341 GLboolean ColorLogicOpEnabled
; /* RGBA logic op enabled flag */
343 GLboolean DitherFlag
; /* Dither enable flag */
347 struct gl_current_attrib
{
348 /* These values valid only when FLUSH_VERTICES has been called.
350 GLfloat Attrib
[VERT_ATTRIB_MAX
][4]; /* Current vertex attributes */
351 /* indexed by VERT_ATTRIB_* */
352 GLuint Index
; /* Current color index */
353 GLboolean EdgeFlag
; /* Current edge flag */
355 /* These values are always valid. BTW, note how similar this set of
356 * attributes is to the SWvertex datatype in the software rasterizer...
358 GLfloat RasterPos
[4]; /* Current raster position */
359 GLfloat RasterDistance
; /* Current raster distance */
360 GLfloat RasterColor
[4]; /* Current raster color */
361 GLfloat RasterSecondaryColor
[4]; /* Current rast 2ndary color */
362 GLuint RasterIndex
; /* Current raster index */
363 GLfloat
*RasterTexCoord
; /* Current raster texcoord */
364 GLfloat RasterMultiTexCoord
[MAX_TEXTURE_UNITS
][4];
365 GLfloat RasterFogCoord
;
366 GLboolean RasterPosValid
; /* Raster pos valid flag */
370 struct gl_depthbuffer_attrib
{
371 GLenum Func
; /* Function for depth buffer compare */
372 GLfloat Clear
; /* Value to clear depth buffer to */
373 GLboolean Test
; /* Depth buffering enabled flag */
374 GLboolean Mask
; /* Depth buffer writable? */
375 GLboolean OcclusionTest
; /* GL_HP_occlusion_test */
379 struct gl_enable_attrib
{
381 GLboolean AutoNormal
;
383 GLboolean ClipPlane
[MAX_CLIP_PLANES
];
384 GLboolean ColorMaterial
;
385 GLboolean Convolution1D
;
386 GLboolean Convolution2D
;
387 GLboolean Separable2D
;
393 GLboolean Light
[MAX_LIGHTS
];
395 GLboolean LineSmooth
;
396 GLboolean LineStipple
;
397 GLboolean IndexLogicOp
;
398 GLboolean ColorLogicOp
;
399 GLboolean Map1Color4
;
401 GLboolean Map1Normal
;
402 GLboolean Map1TextureCoord1
;
403 GLboolean Map1TextureCoord2
;
404 GLboolean Map1TextureCoord3
;
405 GLboolean Map1TextureCoord4
;
406 GLboolean Map1Vertex3
;
407 GLboolean Map1Vertex4
;
408 GLboolean Map1Attrib
[16]; /* GL_NV_vertex_program */
409 GLboolean Map2Color4
;
411 GLboolean Map2Normal
;
412 GLboolean Map2TextureCoord1
;
413 GLboolean Map2TextureCoord2
;
414 GLboolean Map2TextureCoord3
;
415 GLboolean Map2TextureCoord4
;
416 GLboolean Map2Vertex3
;
417 GLboolean Map2Vertex4
;
418 GLboolean Map2Attrib
[16]; /* GL_NV_vertex_program */
421 GLboolean PixelTexture
;
422 GLboolean PointSmooth
;
423 GLboolean PolygonOffsetPoint
;
424 GLboolean PolygonOffsetLine
;
425 GLboolean PolygonOffsetFill
;
426 GLboolean PolygonSmooth
;
427 GLboolean PolygonStipple
;
428 GLboolean RescaleNormals
;
431 GLboolean MultisampleEnabled
; /* GL_ARB_multisample */
432 GLboolean SampleAlphaToCoverage
; /* GL_ARB_multisample */
433 GLboolean SampleAlphaToOne
; /* GL_ARB_multisample */
434 GLboolean SampleCoverage
; /* GL_ARB_multisample */
435 GLboolean SampleCoverageInvert
; /* GL_ARB_multisample */
436 GLboolean RasterPositionUnclipped
; /* GL_IBM_rasterpos_clip */
437 GLuint Texture
[MAX_TEXTURE_UNITS
];
438 GLuint TexGen
[MAX_TEXTURE_UNITS
];
439 /* GL_NV_vertex_program */
440 GLboolean VertexProgram
;
441 GLboolean VertexProgramPointSize
;
442 GLboolean VertexProgramTwoSide
;
446 struct gl_eval_attrib
{
448 GLboolean Map1Color4
;
450 GLboolean Map1Normal
;
451 GLboolean Map1TextureCoord1
;
452 GLboolean Map1TextureCoord2
;
453 GLboolean Map1TextureCoord3
;
454 GLboolean Map1TextureCoord4
;
455 GLboolean Map1Vertex3
;
456 GLboolean Map1Vertex4
;
457 GLboolean Map1Attrib
[16]; /* GL_NV_vertex_program */
458 GLboolean Map2Color4
;
460 GLboolean Map2Normal
;
461 GLboolean Map2TextureCoord1
;
462 GLboolean Map2TextureCoord2
;
463 GLboolean Map2TextureCoord3
;
464 GLboolean Map2TextureCoord4
;
465 GLboolean Map2Vertex3
;
466 GLboolean Map2Vertex4
;
467 GLboolean Map2Attrib
[16]; /* GL_NV_vertex_program */
468 GLboolean AutoNormal
;
469 /* Map Grid endpoints and divisions and calculated du values */
471 GLfloat MapGrid1u1
, MapGrid1u2
, MapGrid1du
;
472 GLint MapGrid2un
, MapGrid2vn
;
473 GLfloat MapGrid2u1
, MapGrid2u2
, MapGrid2du
;
474 GLfloat MapGrid2v1
, MapGrid2v2
, MapGrid2dv
;
478 struct gl_fog_attrib
{
479 GLboolean Enabled
; /* Fog enabled flag */
480 GLfloat Color
[4]; /* Fog color */
481 GLfloat Density
; /* Density >= 0.0 */
482 GLfloat Start
; /* Start distance in eye coords */
483 GLfloat End
; /* End distance in eye coords */
484 GLfloat Index
; /* Fog index */
485 GLenum Mode
; /* Fog mode */
486 GLboolean ColorSumEnabled
;
487 GLenum FogCoordinateSource
; /* GL_EXT_fog_coord */
491 struct gl_hint_attrib
{
492 /* always one of GL_FASTEST, GL_NICEST, or GL_DONT_CARE */
493 GLenum PerspectiveCorrection
;
496 GLenum PolygonSmooth
;
498 GLenum ClipVolumeClipping
; /* GL_EXT_clip_volume_hint */
499 GLenum TextureCompression
; /* GL_ARB_texture_compression */
500 GLenum GenerateMipmap
; /* GL_SGIS_generate_mipmap */
504 struct gl_histogram_attrib
{
505 GLuint Width
; /* number of table entries */
506 GLint Format
; /* GL_ALPHA, GL_RGB, etc */
507 GLuint Count
[HISTOGRAM_TABLE_SIZE
][4]; /* the histogram */
508 GLboolean Sink
; /* terminate image transfer? */
509 GLubyte RedSize
; /* Bits per counter */
513 GLubyte LuminanceSize
;
517 struct gl_minmax_attrib
{
520 GLfloat Min
[4], Max
[4]; /* RGBA */
524 struct gl_convolution_attrib
{
526 GLenum InternalFormat
;
529 GLfloat Filter
[MAX_CONVOLUTION_WIDTH
* MAX_CONVOLUTION_HEIGHT
* 4];
533 #define LIGHT_SPOT 0x1
534 #define LIGHT_LOCAL_VIEWER 0x2
535 #define LIGHT_POSITIONAL 0x4
536 #define LIGHT_NEED_VERTICES (LIGHT_POSITIONAL|LIGHT_LOCAL_VIEWER)
538 struct gl_light_attrib
{
539 struct gl_light Light
[MAX_LIGHTS
]; /* Array of lights */
540 struct gl_lightmodel Model
; /* Lighting model */
542 /* Must flush FLUSH_VERTICES before referencing:
544 struct gl_material Material
[2]; /* Material 0=front, 1=back */
546 GLboolean Enabled
; /* Lighting enabled flag */
547 GLenum ShadeModel
; /* GL_FLAT or GL_SMOOTH */
548 GLenum ColorMaterialFace
; /* GL_FRONT, BACK or FRONT_AND_BACK */
549 GLenum ColorMaterialMode
; /* GL_AMBIENT, GL_DIFFUSE, etc */
550 GLuint ColorMaterialBitmask
; /* bitmask formed from Face and Mode */
551 GLboolean ColorMaterialEnabled
;
553 struct gl_light EnabledList
; /* List sentinel */
555 /* Derived for optimizations: */
556 GLboolean _NeedVertices
; /* Use fast shader? */
557 GLuint _Flags
; /* LIGHT_* flags, see above */
558 GLfloat _BaseColor
[2][3];
562 struct gl_line_attrib
{
563 GLboolean SmoothFlag
; /* GL_LINE_SMOOTH enabled? */
564 GLboolean StippleFlag
; /* GL_LINE_STIPPLE enabled? */
565 GLushort StipplePattern
; /* Stipple pattern */
566 GLint StippleFactor
; /* Stipple repeat factor */
567 GLfloat Width
; /* Line width */
568 GLfloat _Width
; /* Clamped Line width */
572 struct gl_list_attrib
{
577 struct gl_list_opcode
{
579 void (*execute
)( GLcontext
*ctx
, void *data
);
580 void (*destroy
)( GLcontext
*ctx
, void *data
);
581 void (*print
)( GLcontext
*ctx
, void *data
);
584 #define GL_MAX_EXT_OPCODES 16
586 struct gl_list_extensions
{
587 struct gl_list_opcode opcode
[GL_MAX_EXT_OPCODES
];
592 struct gl_multisample_attrib
{
594 GLboolean SampleAlphaToCoverage
;
595 GLboolean SampleAlphaToOne
;
596 GLboolean SampleCoverage
;
597 GLfloat SampleCoverageValue
;
598 GLboolean SampleCoverageInvert
;
602 struct gl_pixel_attrib
{
603 GLenum ReadBuffer
; /* src buffer for glRead/CopyPixels */
604 GLenum DriverReadBuffer
; /* Driver's current source buffer */
605 GLfloat RedBias
, RedScale
;
606 GLfloat GreenBias
, GreenScale
;
607 GLfloat BlueBias
, BlueScale
;
608 GLfloat AlphaBias
, AlphaScale
;
609 GLfloat DepthBias
, DepthScale
;
610 GLint IndexShift
, IndexOffset
;
611 GLboolean MapColorFlag
;
612 GLboolean MapStencilFlag
;
613 GLfloat ZoomX
, ZoomY
;
614 /* XXX move these out of gl_pixel_attrib */
615 GLint MapStoSsize
; /* Size of each pixel map */
625 GLint MapStoS
[MAX_PIXEL_MAP_TABLE
]; /* Pixel map tables */
626 GLint MapItoI
[MAX_PIXEL_MAP_TABLE
];
627 GLfloat MapItoR
[MAX_PIXEL_MAP_TABLE
];
628 GLfloat MapItoG
[MAX_PIXEL_MAP_TABLE
];
629 GLfloat MapItoB
[MAX_PIXEL_MAP_TABLE
];
630 GLfloat MapItoA
[MAX_PIXEL_MAP_TABLE
];
631 GLubyte MapItoR8
[MAX_PIXEL_MAP_TABLE
]; /* converted to 8-bit color */
632 GLubyte MapItoG8
[MAX_PIXEL_MAP_TABLE
];
633 GLubyte MapItoB8
[MAX_PIXEL_MAP_TABLE
];
634 GLubyte MapItoA8
[MAX_PIXEL_MAP_TABLE
];
635 GLfloat MapRtoR
[MAX_PIXEL_MAP_TABLE
];
636 GLfloat MapGtoG
[MAX_PIXEL_MAP_TABLE
];
637 GLfloat MapBtoB
[MAX_PIXEL_MAP_TABLE
];
638 GLfloat MapAtoA
[MAX_PIXEL_MAP_TABLE
];
639 /* GL_EXT_histogram */
640 GLboolean HistogramEnabled
;
641 GLboolean MinMaxEnabled
;
642 /* GL_SGIS_pixel_texture */
643 GLboolean PixelTextureEnabled
;
644 GLenum FragmentRgbSource
;
645 GLenum FragmentAlphaSource
;
646 /* GL_SGI_color_matrix */
647 GLfloat PostColorMatrixScale
[4]; /* RGBA */
648 GLfloat PostColorMatrixBias
[4]; /* RGBA */
649 /* GL_SGI_color_table */
650 GLfloat ColorTableScale
[4];
651 GLfloat ColorTableBias
[4];
652 GLboolean ColorTableEnabled
;
653 GLfloat PCCTscale
[4];
655 GLboolean PostConvolutionColorTableEnabled
;
656 GLfloat PCMCTscale
[4];
657 GLfloat PCMCTbias
[4];
658 GLboolean PostColorMatrixColorTableEnabled
;
660 GLboolean Convolution1DEnabled
;
661 GLboolean Convolution2DEnabled
;
662 GLboolean Separable2DEnabled
;
663 GLfloat ConvolutionBorderColor
[3][4];
664 GLenum ConvolutionBorderMode
[3];
665 GLfloat ConvolutionFilterScale
[3][4];
666 GLfloat ConvolutionFilterBias
[3][4];
667 GLfloat PostConvolutionScale
[4]; /* RGBA */
668 GLfloat PostConvolutionBias
[4]; /* RGBA */
672 struct gl_point_attrib
{
673 GLboolean SmoothFlag
; /* True if GL_POINT_SMOOTH is enabled */
674 GLboolean SpriteMode
; /* GL_MESA_sprite_point extension */
675 GLfloat Size
; /* User-specified point size */
676 GLfloat _Size
; /* Size clamped to Const.Min/MaxPointSize */
677 GLfloat Params
[3]; /* GL_EXT_point_parameters */
678 GLfloat MinSize
, MaxSize
; /* GL_EXT_point_parameters */
679 GLfloat Threshold
; /* GL_EXT_point_parameters */
680 GLboolean _Attenuated
; /* True if Params != [1, 0, 0] */
684 struct gl_polygon_attrib
{
685 GLenum FrontFace
; /* Either GL_CW or GL_CCW */
686 GLenum FrontMode
; /* Either GL_POINT, GL_LINE or GL_FILL */
687 GLenum BackMode
; /* Either GL_POINT, GL_LINE or GL_FILL */
688 GLboolean _FrontBit
; /* */
689 GLboolean CullFlag
; /* Culling on/off flag */
690 GLboolean SmoothFlag
; /* True if GL_POLYGON_SMOOTH is enabled */
691 GLboolean StippleFlag
; /* True if GL_POLYGON_STIPPLE is enabled */
692 GLenum CullFaceMode
; /* Culling mode GL_FRONT or GL_BACK */
693 GLfloat OffsetFactor
; /* Polygon offset factor, from user */
694 GLfloat OffsetUnits
; /* Polygon offset units, from user */
695 GLfloat OffsetMRD
; /* = OffsetUnits * visual->MRD */
696 GLboolean OffsetPoint
; /* Offset in GL_POINT mode */
697 GLboolean OffsetLine
; /* Offset in GL_LINE mode */
698 GLboolean OffsetFill
; /* Offset in GL_FILL mode */
699 GLboolean _OffsetAny
;
703 struct gl_scissor_attrib
{
704 GLboolean Enabled
; /* Scissor test enabled? */
705 GLint X
, Y
; /* Lower left corner of box */
706 GLsizei Width
, Height
; /* Size of box */
710 struct gl_stencil_attrib
{
711 GLboolean Enabled
; /* Enabled flag */
712 GLenum Function
; /* Stencil function */
713 GLenum FailFunc
; /* Fail function */
714 GLenum ZPassFunc
; /* Depth buffer pass function */
715 GLenum ZFailFunc
; /* Depth buffer fail function */
716 GLstencil Ref
; /* Reference value */
717 GLstencil ValueMask
; /* Value mask */
718 GLstencil Clear
; /* Clear value */
719 GLstencil WriteMask
; /* Write mask */
723 /* TexGenEnabled flags */
729 /* Texture Enabled flags */
730 #define TEXTURE0_1D 0x1 /* Texture unit 0 (default) */
731 #define TEXTURE0_2D 0x2
732 #define TEXTURE0_3D 0x4
733 #define TEXTURE0_CUBE 0x8
734 #define TEXTURE0_ANY (TEXTURE0_1D | TEXTURE0_2D | TEXTURE0_3D | TEXTURE0_CUBE)
735 #define TEXTURE1_1D (TEXTURE0_1D << 4) /* Texture unit 1 */
736 #define TEXTURE1_2D (TEXTURE0_2D << 4)
737 #define TEXTURE1_3D (TEXTURE0_3D << 4)
738 #define TEXTURE1_CUBE (TEXTURE0_CUBE << 4)
739 #define TEXTURE1_ANY (TEXTURE1_1D | TEXTURE1_2D | TEXTURE1_3D | TEXTURE1_CUBE)
740 #define TEXTURE2_1D (TEXTURE0_1D << 8) /* Texture unit 2 */
741 #define TEXTURE2_2D (TEXTURE0_2D << 8)
742 #define TEXTURE2_3D (TEXTURE0_3D << 8)
743 #define TEXTURE2_CUBE (TEXTURE0_CUBE << 8)
744 #define TEXTURE2_ANY (TEXTURE2_1D | TEXTURE2_2D | TEXTURE2_3D | TEXTURE2_CUBE)
745 #define TEXTURE3_1D (TEXTURE0_1D << 12) /* Texture unit 3 */
746 #define TEXTURE3_2D (TEXTURE0_2D << 12)
747 #define TEXTURE3_3D (TEXTURE0_3D << 12)
748 #define TEXTURE3_CUBE (TEXTURE0_CUBE << 12)
749 #define TEXTURE3_ANY (TEXTURE3_1D | TEXTURE3_2D | TEXTURE3_3D | TEXTURE3_CUBE)
750 #define TEXTURE4_1D (TEXTURE0_1D << 16) /* Texture unit 4 */
751 #define TEXTURE4_2D (TEXTURE0_2D << 16)
752 #define TEXTURE4_3D (TEXTURE0_3D << 16)
753 #define TEXTURE4_CUBE (TEXTURE0_CUBE << 16)
754 #define TEXTURE5_ANY (TEXTURE3_1D | TEXTURE3_2D | TEXTURE3_3D | TEXTURE3_CUBE)
755 #define TEXTURE5_1D (TEXTURE0_1D << 20) /* Texture unit 5 */
756 #define TEXTURE5_2D (TEXTURE0_2D << 20)
757 #define TEXTURE5_3D (TEXTURE0_3D << 20)
758 #define TEXTURE5_CUBE (TEXTURE0_CUBE << 20)
759 #define TEXTURE5_ANY (TEXTURE3_1D | TEXTURE3_2D | TEXTURE3_3D | TEXTURE3_CUBE)
760 #define TEXTURE6_1D (TEXTURE0_1D << 24) /* Texture unit 6 */
761 #define TEXTURE6_2D (TEXTURE0_2D << 24)
762 #define TEXTURE6_3D (TEXTURE0_3D << 24)
763 #define TEXTURE6_CUBE (TEXTURE0_CUBE << 24)
764 #define TEXTURE6_ANY (TEXTURE3_1D | TEXTURE3_2D | TEXTURE3_3D | TEXTURE3_CUBE)
765 #define TEXTURE7_1D (TEXTURE0_1D << 28) /* Texture unit 7 */
766 #define TEXTURE7_2D (TEXTURE0_2D << 28)
767 #define TEXTURE7_3D (TEXTURE0_3D << 28)
768 #define TEXTURE7_CUBE (TEXTURE0_CUBE << 28)
769 #define TEXTURE7_ANY (TEXTURE3_1D | TEXTURE3_2D | TEXTURE3_3D | TEXTURE3_CUBE)
771 /* Bitmap versions of the GL_ constants.
773 #define TEXGEN_SPHERE_MAP 0x1
774 #define TEXGEN_OBJ_LINEAR 0x2
775 #define TEXGEN_EYE_LINEAR 0x4
776 #define TEXGEN_REFLECTION_MAP_NV 0x8
777 #define TEXGEN_NORMAL_MAP_NV 0x10
779 #define TEXGEN_NEED_NORMALS (TEXGEN_SPHERE_MAP | \
780 TEXGEN_REFLECTION_MAP_NV | \
781 TEXGEN_NORMAL_MAP_NV)
782 #define TEXGEN_NEED_EYE_COORD (TEXGEN_SPHERE_MAP | \
783 TEXGEN_REFLECTION_MAP_NV | \
784 TEXGEN_NORMAL_MAP_NV | \
789 /* A selection of state flags to make driver and module's lives easier.
791 #define ENABLE_TEXGEN0 0x1
792 #define ENABLE_TEXGEN1 0x2
793 #define ENABLE_TEXGEN2 0x4
794 #define ENABLE_TEXGEN3 0x8
795 #define ENABLE_TEXGEN4 0x10
796 #define ENABLE_TEXGEN5 0x20
797 #define ENABLE_TEXGEN6 0x40
798 #define ENABLE_TEXGEN7 0x80
800 #define ENABLE_TEXMAT0 0x1 /* Ie. not the identity matrix */
801 #define ENABLE_TEXMAT1 0x2
802 #define ENABLE_TEXMAT2 0x4
803 #define ENABLE_TEXMAT3 0x8
804 #define ENABLE_TEXMAT4 0x10
805 #define ENABLE_TEXMAT5 0x20
806 #define ENABLE_TEXMAT6 0x40
807 #define ENABLE_TEXMAT7 0x80
809 #define ENABLE_TEXGEN(i) (ENABLE_TEXGEN0 << (i))
810 #define ENABLE_TEXMAT(i) (ENABLE_TEXMAT0 << (i))
813 * If teximage is color-index, texelOut returns GLchan[1].
814 * If teximage is depth, texelOut returns GLfloat[1].
815 * Otherwise, texelOut returns GLchan[4].
817 typedef void (*FetchTexelFunc
)( const struct gl_texture_image
*texImage
,
818 GLint col
, GLint row
, GLint img
,
821 /* Texture format record */
822 struct gl_texture_format
{
823 GLint MesaFormat
; /* One of the MESA_FORMAT_* values */
825 GLenum BaseFormat
; /* Either GL_ALPHA, GL_INTENSITY, GL_LUMINANCE,
826 * GL_LUMINANCE_ALPHA, GL_RGB, GL_RGBA,
827 * GL_COLOR_INDEX or GL_DEPTH_COMPONENT.
829 GLenum Type
; /* Internal type as GL enum value */
831 GLubyte RedBits
; /* Bits per texel component */
835 GLubyte LuminanceBits
;
836 GLubyte IntensityBits
;
842 FetchTexelFunc FetchTexel1D
; /* Texel fetch function pointers */
843 FetchTexelFunc FetchTexel2D
;
844 FetchTexelFunc FetchTexel3D
;
847 /* Texture image record */
848 struct gl_texture_image
{
849 GLenum Format
; /* GL_ALPHA, GL_LUMINANCE, GL_LUMINANCE_ALPHA,
850 * GL_INTENSITY, GL_RGB, GL_RGBA,
851 * GL_COLOR_INDEX or GL_DEPTH_COMPONENT only.
853 GLint IntFormat
; /* Internal format as given by the user */
854 GLuint Border
; /* 0 or 1 */
855 GLuint Width
; /* = 2^WidthLog2 + 2*Border */
856 GLuint Height
; /* = 2^HeightLog2 + 2*Border */
857 GLuint Depth
; /* = 2^DepthLog2 + 2*Border */
858 GLuint Width2
; /* = Width - 2*Border */
859 GLuint Height2
; /* = Height - 2*Border */
860 GLuint Depth2
; /* = Depth - 2*Border */
861 GLuint WidthLog2
; /* = log2(Width2) */
862 GLuint HeightLog2
; /* = log2(Height2) */
863 GLuint DepthLog2
; /* = log2(Depth2) */
864 GLuint MaxLog2
; /* = MAX(WidthLog2, HeightLog2) */
865 GLvoid
*Data
; /* Image data, accessed via FetchTexel() */
867 const struct gl_texture_format
*TexFormat
;
869 FetchTexelFunc FetchTexel
; /* Texel fetch function pointer */
871 GLboolean IsCompressed
; /* GL_ARB_texture_compression */
872 GLuint CompressedSize
; /* GL_ARB_texture_compression */
874 /* For device driver: */
875 void *DriverData
; /* Arbitrary device driver data */
879 /* Texture object record */
880 struct gl_texture_object
{
881 _glthread_Mutex Mutex
; /* for thread safety */
882 GLint RefCount
; /* reference count */
883 GLuint Name
; /* an unsigned integer */
884 GLuint Dimensions
; /* 1 or 2 or 3 or 6 (cube map) */
885 GLfloat Priority
; /* in [0,1] */
886 GLfloat BorderValues
[4]; /* unclamped */
887 GLchan BorderColor
[4]; /* clamped, as GLchan */
888 GLenum WrapS
; /* Wrap modes are: GL_CLAMP, REPEAT */
889 GLenum WrapT
; /* GL_CLAMP_TO_EDGE, and */
890 GLenum WrapR
; /* GL_CLAMP_TO_BORDER_ARB */
891 GLenum MinFilter
; /* minification filter */
892 GLenum MagFilter
; /* magnification filter */
893 GLfloat MinLod
; /* min lambda, OpenGL 1.2 */
894 GLfloat MaxLod
; /* max lambda, OpenGL 1.2 */
895 GLint BaseLevel
; /* min mipmap level, OpenGL 1.2 */
896 GLint MaxLevel
; /* max mipmap level, OpenGL 1.2 */
897 GLfloat MaxAnisotropy
; /* GL_EXT_texture_filter_anisotropic */
898 GLboolean CompareFlag
; /* GL_SGIX_shadow */
899 GLenum CompareOperator
; /* GL_SGIX_shadow */
900 GLchan ShadowAmbient
; /* GL_SGIX/ARB_shadow_ambient */
901 GLenum CompareMode
; /* GL_ARB_shadow */
902 GLenum CompareFunc
; /* GL_ARB_shadow */
903 GLenum CompareResult
; /* GL_ARB_shadow */
904 GLint _MaxLevel
; /* actual max mipmap level (q in the spec) */
905 GLfloat _MaxLambda
; /* = _MaxLevel - BaseLevel (q - b in spec) */
906 GLboolean GenerateMipmap
; /* GL_SGIS_generate_mipmap */
908 struct gl_texture_image
*Image
[MAX_TEXTURE_LEVELS
];
910 /* Texture cube faces */
911 /* Image[] is alias for *PosX[MAX_TEXTURE_LEVELS]; */
912 struct gl_texture_image
*NegX
[MAX_TEXTURE_LEVELS
];
913 struct gl_texture_image
*PosY
[MAX_TEXTURE_LEVELS
];
914 struct gl_texture_image
*NegY
[MAX_TEXTURE_LEVELS
];
915 struct gl_texture_image
*PosZ
[MAX_TEXTURE_LEVELS
];
916 struct gl_texture_image
*NegZ
[MAX_TEXTURE_LEVELS
];
918 /* GL_EXT_paletted_texture */
919 struct gl_color_table Palette
;
921 GLboolean Complete
; /* Is texture object complete? */
922 struct gl_texture_object
*Next
; /* Next in linked list */
924 /* For device driver: */
925 void *DriverData
; /* Arbitrary device driver data */
931 * Texture units are new with the multitexture extension.
933 struct gl_texture_unit
{
934 GLuint Enabled
; /* bitmask of TEXTURE0_1D, _2D, _3D, _CUBE */
935 GLuint _ReallyEnabled
; /* 0 or one of TEXTURE0_1D, _2D, _3D, _CUBE */
937 GLenum EnvMode
; /* GL_MODULATE, GL_DECAL, GL_BLEND, etc. */
939 GLuint TexGenEnabled
; /* Bitwise-OR of [STRQ]_BIT values */
940 GLenum GenModeS
; /* Tex coord generation mode, either */
941 GLenum GenModeT
; /* GL_OBJECT_LINEAR, or */
942 GLenum GenModeR
; /* GL_EYE_LINEAR, or */
943 GLenum GenModeQ
; /* GL_SPHERE_MAP */
948 GLuint _GenFlags
; /* bitwise or of GenBit[STRQ] */
949 GLfloat ObjectPlaneS
[4];
950 GLfloat ObjectPlaneT
[4];
951 GLfloat ObjectPlaneR
[4];
952 GLfloat ObjectPlaneQ
[4];
953 GLfloat EyePlaneS
[4];
954 GLfloat EyePlaneT
[4];
955 GLfloat EyePlaneR
[4];
956 GLfloat EyePlaneQ
[4];
957 GLfloat LodBias
; /* for biasing mipmap levels */
959 /* GL_EXT_texture_env_combine */
960 GLenum CombineModeRGB
; /* GL_REPLACE, GL_DECAL, GL_ADD, etc. */
961 GLenum CombineModeA
; /* GL_REPLACE, GL_DECAL, GL_ADD, etc. */
962 GLenum CombineSourceRGB
[3]; /* GL_PRIMARY_COLOR, GL_TEXTURE, etc. */
963 GLenum CombineSourceA
[3]; /* GL_PRIMARY_COLOR, GL_TEXTURE, etc. */
964 GLenum CombineOperandRGB
[3]; /* SRC_COLOR, ONE_MINUS_SRC_COLOR, etc */
965 GLenum CombineOperandA
[3]; /* SRC_ALPHA, ONE_MINUS_SRC_ALPHA, etc */
966 GLuint CombineScaleShiftRGB
; /* 0, 1 or 2 */
967 GLuint CombineScaleShiftA
; /* 0, 1 or 2 */
969 struct gl_texture_object
*Current1D
;
970 struct gl_texture_object
*Current2D
;
971 struct gl_texture_object
*Current3D
;
972 struct gl_texture_object
*CurrentCubeMap
; /* GL_ARB_texture_cube_map */
974 struct gl_texture_object
*_Current
; /* Points to really enabled tex obj */
976 struct gl_texture_object Saved1D
; /* only used by glPush/PopAttrib */
977 struct gl_texture_object Saved2D
;
978 struct gl_texture_object Saved3D
;
979 struct gl_texture_object SavedCubeMap
;
983 struct gl_texture_attrib
{
985 GLuint CurrentUnit
; /* Active texture unit */
987 GLuint _ReallyEnabled
; /* enables for all texture units: */
988 /* = (Unit[0]._ReallyEnabled << 0) | */
989 /* (Unit[1]._ReallyEnabled << 4) | */
990 /* (Unit[2]._ReallyEnabled << 8) | etc... */
992 GLuint _GenFlags
; /* for texgen */
993 GLuint _TexGenEnabled
;
994 GLuint _TexMatEnabled
;
996 struct gl_texture_unit Unit
[MAX_TEXTURE_UNITS
];
998 struct gl_texture_object
*Proxy1D
;
999 struct gl_texture_object
*Proxy2D
;
1000 struct gl_texture_object
*Proxy3D
;
1001 struct gl_texture_object
*ProxyCubeMap
;
1003 /* GL_EXT_shared_texture_palette */
1004 GLboolean SharedPalette
;
1005 struct gl_color_table Palette
;
1009 struct gl_transform_attrib
{
1010 GLenum MatrixMode
; /* Matrix mode */
1011 GLfloat EyeUserPlane
[MAX_CLIP_PLANES
][4];
1012 GLfloat _ClipUserPlane
[MAX_CLIP_PLANES
][4]; /* derived */
1013 GLboolean ClipEnabled
[MAX_CLIP_PLANES
];
1014 GLubyte _AnyClip
; /* How many ClipEnabled? */
1015 GLboolean Normalize
; /* Normalize all normals? */
1016 GLboolean RescaleNormals
; /* GL_EXT_rescale_normal */
1017 GLboolean RasterPositionUnclipped
; /* GL_IBM_rasterpos_clip */
1021 struct gl_viewport_attrib
{
1022 GLint X
, Y
; /* position */
1023 GLsizei Width
, Height
; /* size */
1024 GLfloat Near
, Far
; /* Depth buffer range */
1025 GLmatrix _WindowMap
; /* Mapping transformation as a matrix. */
1029 /* For the attribute stack: */
1030 struct gl_attrib_node
{
1033 struct gl_attrib_node
*next
;
1038 * Client pixel packing/unpacking attributes
1040 struct gl_pixelstore_attrib
{
1045 GLint ImageHeight
; /* for GL_EXT_texture3D */
1046 GLint SkipImages
; /* for GL_EXT_texture3D */
1047 GLboolean SwapBytes
;
1052 #define CA_CLIENT_DATA 0x1 /* Data not alloced by mesa */
1056 * Client vertex array attributes
1058 struct gl_client_array
{
1061 GLsizei Stride
; /* user-specified stride */
1062 GLsizei StrideB
; /* actual stride in bytes */
1065 GLuint Enabled
; /* one of the _NEW_ARRAY_ bits */
1069 struct gl_array_attrib
{
1070 struct gl_client_array Vertex
; /* client data descriptors */
1071 struct gl_client_array Normal
;
1072 struct gl_client_array Color
;
1073 struct gl_client_array SecondaryColor
;
1074 struct gl_client_array FogCoord
;
1075 struct gl_client_array Index
;
1076 struct gl_client_array TexCoord
[MAX_TEXTURE_UNITS
];
1077 struct gl_client_array EdgeFlag
;
1079 struct gl_client_array VertexAttrib
[16]; /* GL_NV_vertex_program */
1081 GLint TexCoordInterleaveFactor
;
1082 GLint ActiveTexture
; /* Client Active Texture */
1086 GLuint _Enabled
; /* _NEW_ARRAY_* - bit set if array enabled */
1087 GLuint NewState
; /* _NEW_ARRAY_* */
1091 struct gl_feedback
{
1093 GLuint _Mask
; /* FB_* bits */
1100 struct gl_selection
{
1102 GLuint BufferSize
; /* size of SelectBuffer */
1103 GLuint BufferCount
; /* number of values in SelectBuffer */
1104 GLuint Hits
; /* number of records in SelectBuffer */
1105 GLuint NameStackDepth
;
1106 GLuint NameStack
[MAX_NAME_STACK_DEPTH
];
1108 GLfloat HitMinZ
, HitMaxZ
;
1113 * 1-D Evaluator control points
1116 GLuint Order
; /* Number of control points */
1117 GLfloat u1
, u2
, du
; /* u1, u2, 1.0/(u2-u1) */
1118 GLfloat
*Points
; /* Points to contiguous control points */
1123 * 2-D Evaluator control points
1126 GLuint Uorder
; /* Number of control points in U dimension */
1127 GLuint Vorder
; /* Number of control points in V dimension */
1130 GLfloat
*Points
; /* Points to contiguous control points */
1135 * All evalutator control points
1137 struct gl_evaluators
{
1139 struct gl_1d_map Map1Vertex3
;
1140 struct gl_1d_map Map1Vertex4
;
1141 struct gl_1d_map Map1Index
;
1142 struct gl_1d_map Map1Color4
;
1143 struct gl_1d_map Map1Normal
;
1144 struct gl_1d_map Map1Texture1
;
1145 struct gl_1d_map Map1Texture2
;
1146 struct gl_1d_map Map1Texture3
;
1147 struct gl_1d_map Map1Texture4
;
1148 struct gl_1d_map Map1Attrib
[16]; /* GL_NV_vertex_program */
1151 struct gl_2d_map Map2Vertex3
;
1152 struct gl_2d_map Map2Vertex4
;
1153 struct gl_2d_map Map2Index
;
1154 struct gl_2d_map Map2Color4
;
1155 struct gl_2d_map Map2Normal
;
1156 struct gl_2d_map Map2Texture1
;
1157 struct gl_2d_map Map2Texture2
;
1158 struct gl_2d_map Map2Texture3
;
1159 struct gl_2d_map Map2Texture4
;
1160 struct gl_2d_map Map2Attrib
[16]; /* GL_NV_vertex_program */
1165 * Vertex program tokens and datatypes
1168 #define VP_MAX_INSTRUCTIONS 128
1170 #define VP_NUM_INPUT_REGS VERT_ATTRIB_MAX
1171 #define VP_NUM_OUTPUT_REGS 15
1172 #define VP_NUM_TEMP_REGS 12
1173 #define VP_NUM_PROG_REGS 96
1175 #define VP_NUM_TOTAL_REGISTERS (VP_NUM_INPUT_REGS + VP_NUM_OUTPUT_REGS + VP_NUM_TEMP_REGS + VP_NUM_PROG_REGS)
1177 /* Location of register sets within the whole register file */
1178 #define VP_INPUT_REG_START 0
1179 #define VP_INPUT_REG_END (VP_INPUT_REG_START + VP_NUM_INPUT_REGS - 1)
1180 #define VP_OUTPUT_REG_START (VP_INPUT_REG_END + 1)
1181 #define VP_OUTPUT_REG_END (VP_OUTPUT_REG_START + VP_NUM_OUTPUT_REGS - 1)
1182 #define VP_TEMP_REG_START (VP_OUTPUT_REG_END + 1)
1183 #define VP_TEMP_REG_END (VP_TEMP_REG_START + VP_NUM_TEMP_REGS - 1)
1184 #define VP_PROG_REG_START (VP_TEMP_REG_END + 1)
1185 #define VP_PROG_REG_END (VP_PROG_REG_START + VP_NUM_PROG_REGS - 1)
1188 /* Machine state (i.e. the register file) */
1191 GLfloat Registers
[VP_NUM_TOTAL_REGISTERS
][4];
1192 GLint AddressReg
; /* might someday be a 4-vector */
1196 /* Vertex program opcodes */
1220 /* Instruction source register */
1221 struct vp_src_register
1223 GLint Register
; /* or the offset from the address register */
1230 /* Instruction destination register */
1231 struct vp_dst_register
1234 GLboolean WriteMask
[4];
1238 /* Vertex program instruction */
1239 struct vp_instruction
1241 enum vp_opcode Opcode
;
1242 struct vp_src_register SrcReg
[3];
1243 struct vp_dst_register DstReg
;
1247 /* The actual vertex program, stored in the hash table */
1250 GLubyte
*String
; /* Original user code */
1251 struct vp_instruction
*Instructions
; /* Compiled instructions */
1252 GLenum Target
; /* GL_VERTEX_PROGRAM_NV or GL_VERTEX_STATE_PROGRAM_NV */
1253 GLint ErrorPos
; /* Position in string where error was detected */
1254 GLint RefCount
; /* Since programs can be shared among contexts */
1256 GLuint InputsRead
; /* Bitmask of which input regs are read */
1257 GLuint OutputsWritten
; /* Bitmask of which output regs are written to */
1262 * State vars for GL_NV_vertex_program
1264 struct vertex_program_state
1266 GLboolean Enabled
; /* GL_VERTEX_PROGRAM_NV */
1267 GLboolean PointSizeEnabled
; /* GL_VERTEX_PROGRAM_POINT_SIZE_NV */
1268 GLboolean TwoSideEnabled
; /* GL_VERTEX_PROGRAM_TWO_SIDE_NV */
1269 GLuint CurrentID
; /* currently bound program's ID */
1270 struct vp_program
*Current
; /* ptr to currently bound program */
1271 struct vp_machine Machine
; /* machine state */
1273 GLenum TrackMatrix
[VP_NUM_PROG_REGS
/ 4];
1274 GLenum TrackMatrixTransform
[VP_NUM_PROG_REGS
/ 4];
1280 * State which can be shared by multiple contexts:
1282 struct gl_shared_state
{
1283 _glthread_Mutex Mutex
; /* for thread safety */
1284 GLint RefCount
; /* Reference count */
1285 struct _mesa_HashTable
*DisplayList
; /* Display lists hash table */
1286 struct _mesa_HashTable
*TexObjects
; /* Texture objects hash table */
1287 struct gl_texture_object
*TexObjectList
;/* Linked list of texture objects */
1289 /* Default texture objects (shared by all multi-texture units) */
1290 struct gl_texture_object
*Default1D
;
1291 struct gl_texture_object
*Default2D
;
1292 struct gl_texture_object
*Default3D
;
1293 struct gl_texture_object
*DefaultCubeMap
;
1295 /* GL_NV_vertex_program */
1296 struct _mesa_HashTable
*VertexPrograms
;
1298 void *DriverData
; /* Device driver shared state */
1303 * A "frame buffer" is a color buffer and its optional ancillary buffers:
1304 * depth, accum, stencil, and software-simulated alpha buffers.
1305 * In C++ terms, think of this as a base class from which device drivers
1306 * will make derived classes.
1308 struct gl_frame_buffer
{
1309 GLvisual Visual
; /* The corresponding visual */
1311 GLint Width
, Height
; /* size of frame buffer in pixels */
1313 GLboolean UseSoftwareDepthBuffer
;
1314 GLboolean UseSoftwareAccumBuffer
;
1315 GLboolean UseSoftwareStencilBuffer
;
1316 GLboolean UseSoftwareAlphaBuffers
;
1318 /* Software depth (aka Z) buffer */
1319 GLvoid
*DepthBuffer
; /* array [Width*Height] of GLushort or GLuint*/
1321 /* Software stencil buffer */
1322 GLstencil
*Stencil
; /* array [Width*Height] of GLstencil values */
1324 /* Software accumulation buffer */
1325 GLaccum
*Accum
; /* array [4*Width*Height] of GLaccum values */
1327 /* Software alpha planes */
1328 GLchan
*FrontLeftAlpha
; /* array [Width*Height] of GLubyte */
1329 GLchan
*BackLeftAlpha
; /* array [Width*Height] of GLubyte */
1330 GLchan
*FrontRightAlpha
; /* array [Width*Height] of GLubyte */
1331 GLchan
*BackRightAlpha
; /* array [Width*Height] of GLubyte */
1332 GLchan
*Alpha
; /* Points to current alpha buffer */
1334 /* Drawing bounds: intersection of window size and scissor box */
1335 GLint _Xmin
, _Ymin
; /* inclusive */
1336 GLint _Xmax
, _Ymax
; /* exclusive */
1341 * Constants which may be overriden by device driver during context creation
1342 * but are never changed after that.
1344 struct gl_constants
{
1345 GLint MaxTextureLevels
;
1346 GLint Max3DTextureLevels
;
1347 GLint MaxCubeTextureLevels
;
1348 GLuint MaxTextureUnits
;
1349 GLfloat MaxTextureMaxAnisotropy
; /* GL_EXT_texture_filter_anisotropic */
1350 GLfloat MaxTextureLodBias
; /* GL_EXT_texture_lod_bias */
1351 GLuint MaxArrayLockSize
;
1353 GLfloat MinPointSize
, MaxPointSize
; /* aliased */
1354 GLfloat MinPointSizeAA
, MaxPointSizeAA
; /* antialiased */
1355 GLfloat PointSizeGranularity
;
1356 GLfloat MinLineWidth
, MaxLineWidth
; /* aliased */
1357 GLfloat MinLineWidthAA
, MaxLineWidthAA
; /* antialiased */
1358 GLfloat LineWidthGranularity
;
1359 GLuint NumAuxBuffers
;
1360 GLuint MaxColorTableSize
;
1361 GLuint MaxConvolutionWidth
;
1362 GLuint MaxConvolutionHeight
;
1363 GLuint NumCompressedTextureFormats
; /* GL_ARB_texture_compression */
1364 GLenum CompressedTextureFormats
[MAX_COMPRESSED_TEXTURE_FORMATS
];
1365 GLuint MaxClipPlanes
;
1371 * List of extensions.
1374 struct gl_extensions
{
1376 struct extension
*ext_list
;
1377 /* Flags to quickly test if certain extensions are available.
1378 * Not every extension needs to have such a flag, but it's encouraged.
1380 GLboolean ARB_imaging
;
1381 GLboolean ARB_multisample
;
1382 GLboolean ARB_multitexture
;
1383 GLboolean ARB_shadow
;
1384 GLboolean ARB_texture_border_clamp
;
1385 GLboolean ARB_texture_compression
;
1386 GLboolean ARB_texture_cube_map
;
1387 GLboolean ARB_texture_env_combine
;
1388 GLboolean ARB_texture_env_dot3
;
1389 GLboolean ARB_texture_mirrored_repeat
;
1390 GLboolean ARB_window_pos
;
1391 GLboolean EXT_blend_color
;
1392 GLboolean EXT_blend_func_separate
;
1393 GLboolean EXT_blend_logic_op
;
1394 GLboolean EXT_blend_minmax
;
1395 GLboolean EXT_blend_subtract
;
1396 GLboolean EXT_clip_volume_hint
;
1397 GLboolean EXT_convolution
;
1398 GLboolean EXT_compiled_vertex_array
;
1399 GLboolean EXT_fog_coord
;
1400 GLboolean EXT_histogram
;
1401 GLboolean EXT_packed_pixels
;
1402 GLboolean EXT_paletted_texture
;
1403 GLboolean EXT_point_parameters
;
1404 GLboolean EXT_polygon_offset
;
1405 GLboolean EXT_rescale_normal
;
1406 GLboolean EXT_secondary_color
;
1407 GLboolean EXT_shared_texture_palette
;
1408 GLboolean EXT_stencil_wrap
;
1409 GLboolean EXT_texture3D
;
1410 GLboolean EXT_texture_compression_s3tc
;
1411 GLboolean EXT_texture_env_add
;
1412 GLboolean EXT_texture_env_combine
;
1413 GLboolean EXT_texture_env_dot3
;
1414 GLboolean EXT_texture_filter_anisotropic
;
1415 GLboolean EXT_texture_object
;
1416 GLboolean EXT_texture_lod_bias
;
1417 GLboolean EXT_vertex_array_set
;
1418 GLboolean HP_occlusion_test
;
1419 GLboolean IBM_rasterpos_clip
;
1420 GLboolean INGR_blend_func_separate
;
1421 GLboolean MESA_window_pos
;
1422 GLboolean MESA_resize_buffers
;
1423 GLboolean MESA_sprite_point
;
1424 GLboolean NV_blend_square
;
1425 GLboolean NV_texgen_reflection
;
1426 GLboolean NV_vertex_program
;
1427 GLboolean SGI_color_matrix
;
1428 GLboolean SGI_color_table
;
1429 GLboolean SGIS_generate_mipmap
;
1430 GLboolean SGIS_pixel_texture
;
1431 GLboolean SGIS_texture_edge_clamp
;
1432 GLboolean SGIX_depth_texture
; /* or GL_ARB_depth_texture */
1433 GLboolean SGIX_pixel_texture
;
1434 GLboolean SGIX_shadow
;
1435 GLboolean SGIX_shadow_ambient
; /* or GL_ARB_shadow_ambient */
1436 GLboolean _3DFX_texture_compression_FXT1
;
1440 /* XXX just an idea */
1443 GLmatrix
*Top
; /* points into Stack */
1444 GLmatrix
*Stack
; /* array [MaxDepth] of GLmatrix */
1445 GLuint Depth
; /* 0 <= Depth < MaxDepth */
1446 GLuint MaxDepth
; /* size of Stack[] array */
1447 GLuint DirtyFlag
; /* _NEW_MODELVIEW or _NEW_PROJECTION, for example */
1452 * Bits for image transfer operations (ctx->ImageTransferState).
1454 #define IMAGE_SCALE_BIAS_BIT 0x1
1455 #define IMAGE_SHIFT_OFFSET_BIT 0x2
1456 #define IMAGE_MAP_COLOR_BIT 0x4
1457 #define IMAGE_COLOR_TABLE_BIT 0x8
1458 #define IMAGE_CONVOLUTION_BIT 0x10
1459 #define IMAGE_POST_CONVOLUTION_SCALE_BIAS 0x20
1460 #define IMAGE_POST_CONVOLUTION_COLOR_TABLE_BIT 0x40
1461 #define IMAGE_COLOR_MATRIX_BIT 0x80
1462 #define IMAGE_POST_COLOR_MATRIX_COLOR_TABLE_BIT 0x100
1463 #define IMAGE_HISTOGRAM_BIT 0x200
1464 #define IMAGE_MIN_MAX_BIT 0x400
1466 /* transfer ops up to convolution: */
1467 #define IMAGE_PRE_CONVOLUTION_BITS (IMAGE_SCALE_BIAS_BIT | \
1468 IMAGE_SHIFT_OFFSET_BIT | \
1469 IMAGE_MAP_COLOR_BIT | \
1470 IMAGE_COLOR_TABLE_BIT)
1472 /* transfer ops after convolution: */
1473 #define IMAGE_POST_CONVOLUTION_BITS (IMAGE_POST_CONVOLUTION_SCALE_BIAS | \
1474 IMAGE_POST_CONVOLUTION_COLOR_TABLE_BIT | \
1475 IMAGE_COLOR_MATRIX_BIT | \
1476 IMAGE_POST_COLOR_MATRIX_COLOR_TABLE_BIT |\
1477 IMAGE_HISTOGRAM_BIT | \
1482 * Bits to indicate what state has changed. 6 unused flags.
1484 #define _NEW_MODELVIEW 0x1 /* ctx->ModelView */
1485 #define _NEW_PROJECTION 0x2 /* ctx->Projection */
1486 #define _NEW_TEXTURE_MATRIX 0x4 /* ctx->TextureMatrix */
1487 #define _NEW_COLOR_MATRIX 0x8 /* ctx->ColorMatrix */
1488 #define _NEW_ACCUM 0x10 /* ctx->Accum */
1489 #define _NEW_COLOR 0x20 /* ctx->Color */
1490 #define _NEW_DEPTH 0x40 /* ctx->Depth */
1491 #define _NEW_EVAL 0x80 /* ctx->Eval, ctx->EvalMap */
1492 #define _NEW_FOG 0x100 /* ctx->Fog */
1493 #define _NEW_HINT 0x200 /* ctx->Hint */
1494 #define _NEW_LIGHT 0x400 /* ctx->Light */
1495 #define _NEW_LINE 0x800 /* ctx->Line */
1496 #define _NEW_PIXEL 0x1000 /* ctx->Pixel */
1497 #define _NEW_POINT 0x2000 /* ctx->Point */
1498 #define _NEW_POLYGON 0x4000 /* ctx->Polygon */
1499 #define _NEW_POLYGONSTIPPLE 0x8000 /* ctx->PolygonStipple */
1500 #define _NEW_SCISSOR 0x10000 /* ctx->Scissor */
1501 #define _NEW_STENCIL 0x20000 /* ctx->Stencil */
1502 #define _NEW_TEXTURE 0x40000 /* ctx->Texture */
1503 #define _NEW_TRANSFORM 0x80000 /* ctx->Transform */
1504 #define _NEW_VIEWPORT 0x100000 /* ctx->Viewport */
1505 #define _NEW_PACKUNPACK 0x200000 /* ctx->Pack, ctx->Unpack */
1506 #define _NEW_ARRAY 0x400000 /* ctx->Array */
1507 #define _NEW_RENDERMODE 0x800000 /* RenderMode, Feedback, Select */
1508 #define _NEW_BUFFERS 0x1000000 /* ctx->Visual, ctx->DrawBuffer, */
1509 #define _NEW_MULTISAMPLE 0x2000000 /* ctx->Multisample */
1510 #define _NEW_TRACK_MATRIX 0x4000000 /* ctx->VertexProgram */
1511 #define _NEW_PROGRAM 0x8000000 /* ctx->VertexProgram */
1516 /* Bits to track array state changes (also used to summarize array enabled)
1518 #define _NEW_ARRAY_VERTEX VERT_BIT_POS
1519 #define _NEW_ARRAY_WEIGHT VERT_BIT_WEIGHT
1520 #define _NEW_ARRAY_NORMAL VERT_BIT_NORMAL
1521 #define _NEW_ARRAY_COLOR0 VERT_BIT_COLOR0
1522 #define _NEW_ARRAY_COLOR1 VERT_BIT_COLOR1
1523 #define _NEW_ARRAY_FOGCOORD VERT_BIT_FOG
1524 #define _NEW_ARRAY_INDEX VERT_BIT_SIX
1525 #define _NEW_ARRAY_EDGEFLAG VERT_BIT_SEVEN
1526 #define _NEW_ARRAY_TEXCOORD_0 VERT_BIT_TEX0
1527 #define _NEW_ARRAY_TEXCOORD_1 VERT_BIT_TEX1
1528 #define _NEW_ARRAY_TEXCOORD_2 VERT_BIT_TEX2
1529 #define _NEW_ARRAY_TEXCOORD_3 VERT_BIT_TEX3
1530 #define _NEW_ARRAY_TEXCOORD_4 VERT_BIT_TEX4
1531 #define _NEW_ARRAY_TEXCOORD_5 VERT_BIT_TEX5
1532 #define _NEW_ARRAY_TEXCOORD_6 VERT_BIT_TEX6
1533 #define _NEW_ARRAY_TEXCOORD_7 VERT_BIT_TEX7
1534 #define _NEW_ARRAY_ALL 0xffff
1535 #define _NEW_ARRAY_VERT_ATTRIB0 0x10000
1538 #define _NEW_ARRAY_TEXCOORD(i) (_NEW_ARRAY_TEXCOORD_0 << (i))
1540 /* A bunch of flags that we think might be useful to drivers.
1542 #define DD_FLATSHADE 0x1
1543 #define DD_SEPARATE_SPECULAR 0x2
1544 #define DD_TRI_CULL_FRONT_BACK 0x4 /* special case on some hw */
1545 #define DD_TRI_LIGHT_TWOSIDE 0x8
1546 #define DD_TRI_UNFILLED 0x10
1547 #define DD_TRI_SMOOTH 0x20
1548 #define DD_TRI_STIPPLE 0x40
1549 #define DD_TRI_OFFSET 0x80
1550 #define DD_LINE_SMOOTH 0x100
1551 #define DD_LINE_STIPPLE 0x200
1552 #define DD_LINE_WIDTH 0x400
1553 #define DD_POINT_SMOOTH 0x800
1554 #define DD_POINT_SIZE 0x1000
1555 #define DD_POINT_ATTEN 0x2000
1557 /* Define the state changes under which each of these bits might change
1559 #define _DD_NEW_FLATSHADE _NEW_LIGHT
1560 #define _DD_NEW_SEPARATE_SPECULAR (_NEW_LIGHT | _NEW_FOG)
1561 #define _DD_NEW_TRI_CULL_FRONT_BACK _NEW_POLYGON
1562 #define _DD_NEW_TRI_LIGHT_TWOSIDE _NEW_LIGHT
1563 #define _DD_NEW_TRI_UNFILLED _NEW_POLYGON
1564 #define _DD_NEW_TRI_SMOOTH _NEW_POLYGON
1565 #define _DD_NEW_TRI_STIPPLE _NEW_POLYGON
1566 #define _DD_NEW_TRI_OFFSET _NEW_POLYGON
1567 #define _DD_NEW_LINE_SMOOTH _NEW_LINE
1568 #define _DD_NEW_LINE_STIPPLE _NEW_LINE
1569 #define _DD_NEW_LINE_WIDTH _NEW_LINE
1570 #define _DD_NEW_POINT_SMOOTH _NEW_POINT
1571 #define _DD_NEW_POINT_SIZE _NEW_POINT
1572 #define _DD_NEW_POINT_ATTEN _NEW_POINT
1574 #define _MESA_NEW_NEED_EYE_COORDS (_NEW_LIGHT | \
1579 #define _MESA_NEW_NEED_NORMALS (_NEW_LIGHT | \
1582 #define _IMAGE_NEW_TRANSFER_STATE (_NEW_PIXEL | _NEW_COLOR_MATRIX)
1585 /* Bits for ctx->_NeedNormals */
1586 #define NEED_NORMALS_TEXGEN 0x1
1587 #define NEED_NORMALS_LIGHT 0x2
1589 /* Bits for ctx->_NeedEyeCoords */
1590 #define NEED_EYE_TEXGEN 0x1
1591 #define NEED_EYE_LIGHT 0x2
1592 #define NEED_EYE_LIGHT_MODELVIEW 0x4
1593 #define NEED_EYE_POINT_ATTEN 0x8
1594 #define NEED_EYE_DRIVER 0x10
1598 * Forward declaration of display list datatypes:
1601 typedef union node Node
;
1604 /* This has to be included here. */
1609 * Core Mesa's support for tnl modules:
1611 #define NUM_VERTEX_FORMAT_ENTRIES (sizeof(GLvertexformat) / sizeof(void *))
1613 struct gl_tnl_module
{
1614 /* Vertex format to be lazily swapped into current dispatch.
1616 GLvertexformat
*Current
;
1618 /* Record of functions swapped out. On restore, only need to swap
1619 * these functions back in.
1621 void *Swapped
[NUM_VERTEX_FORMAT_ENTRIES
][2];
1627 * This is the central context data structure for Mesa. Almost all
1628 * OpenGL state is contained in this structure.
1630 struct __GLcontextRec
{
1632 * OS related interfaces; these *must* be the first members of this
1633 * structure, because they are exposed to the outside world (i.e. GLX
1636 __GLimports imports
;
1637 __GLexports exports
;
1639 /* State possibly shared with other contexts in the address space */
1640 struct gl_shared_state
*Shared
;
1642 /* API function pointer tables */
1643 struct _glapi_table
*Save
; /**< Display list save funcs */
1644 struct _glapi_table
*Exec
; /**< Execute funcs */
1645 struct _glapi_table
*CurrentDispatch
; /**< == Save or Exec !! */
1647 GLboolean ExecPrefersFloat
; /**< What preference for color conversion? */
1648 GLboolean SavePrefersFloat
;
1651 GLframebuffer
*DrawBuffer
; /**< buffer for writing */
1652 GLframebuffer
*ReadBuffer
; /**< buffer for reading */
1655 * Device driver function pointer table
1657 struct dd_function_table Driver
;
1659 void *DriverCtx
; /**< Points to device driver context/state */
1660 void *DriverMgrCtx
; /**< Points to device driver manager (optional)*/
1662 /* Core/Driver constants */
1663 struct gl_constants Const
;
1665 /* The various 4x4 matrix stacks */
1666 struct matrix_stack ModelviewMatrixStack
;
1667 struct matrix_stack ProjectionMatrixStack
;
1668 struct matrix_stack ColorMatrixStack
;
1669 struct matrix_stack TextureMatrixStack
[MAX_TEXTURE_UNITS
];
1670 struct matrix_stack ProgramMatrixStack
[MAX_PROGRAM_MATRICES
];
1671 struct matrix_stack
*CurrentStack
; /* Points to one of the above stacks */
1673 /* Combined modelview and projection matrix */
1674 GLmatrix _ModelProjectMatrix
;
1677 GLuint CallDepth
; /* Current recursion calling depth */
1678 GLboolean ExecuteFlag
; /* Execute GL commands? */
1679 GLboolean CompileFlag
; /* Compile GL commands into display list? */
1680 Node
*CurrentListPtr
; /* Head of list being compiled */
1681 GLuint CurrentListNum
; /* Number of the list being compiled */
1682 Node
*CurrentBlock
; /* Pointer to current block of nodes */
1683 GLuint CurrentPos
; /* Index into current block of nodes */
1686 struct gl_extensions Extensions
;
1688 /* Renderer attribute stack */
1689 GLuint AttribStackDepth
;
1690 struct gl_attrib_node
*AttribStack
[MAX_ATTRIB_STACK_DEPTH
];
1692 /* Renderer attribute groups */
1693 struct gl_accum_attrib Accum
;
1694 struct gl_colorbuffer_attrib Color
;
1695 struct gl_current_attrib Current
;
1696 struct gl_depthbuffer_attrib Depth
;
1697 struct gl_eval_attrib Eval
;
1698 struct gl_fog_attrib Fog
;
1699 struct gl_hint_attrib Hint
;
1700 struct gl_light_attrib Light
;
1701 struct gl_line_attrib Line
;
1702 struct gl_list_attrib List
;
1703 struct gl_multisample_attrib Multisample
;
1704 struct gl_pixel_attrib Pixel
;
1705 struct gl_point_attrib Point
;
1706 struct gl_polygon_attrib Polygon
;
1707 GLuint PolygonStipple
[32];
1708 struct gl_scissor_attrib Scissor
;
1709 struct gl_stencil_attrib Stencil
;
1710 struct gl_texture_attrib Texture
;
1711 struct gl_transform_attrib Transform
;
1712 struct gl_viewport_attrib Viewport
;
1714 /* Other attribute groups */
1715 struct gl_histogram_attrib Histogram
;
1716 struct gl_minmax_attrib MinMax
;
1717 struct gl_convolution_attrib Convolution1D
;
1718 struct gl_convolution_attrib Convolution2D
;
1719 struct gl_convolution_attrib Separable2D
;
1721 /* Client attribute stack */
1722 GLuint ClientAttribStackDepth
;
1723 struct gl_attrib_node
*ClientAttribStack
[MAX_CLIENT_ATTRIB_STACK_DEPTH
];
1725 /* Client attribute groups */
1726 struct gl_array_attrib Array
; /* Vertex arrays */
1727 struct gl_pixelstore_attrib Pack
; /* Pixel packing */
1728 struct gl_pixelstore_attrib Unpack
; /* Pixel unpacking */
1730 struct gl_evaluators EvalMap
; /* All evaluators */
1731 struct gl_feedback Feedback
; /* Feedback */
1732 struct gl_selection Select
; /* Selection */
1734 struct gl_color_table ColorTable
; /* Pre-convolution */
1735 struct gl_color_table ProxyColorTable
; /* Pre-convolution */
1736 struct gl_color_table PostConvolutionColorTable
;
1737 struct gl_color_table ProxyPostConvolutionColorTable
;
1738 struct gl_color_table PostColorMatrixColorTable
;
1739 struct gl_color_table ProxyPostColorMatrixColorTable
;
1741 struct vertex_program_state VertexProgram
; /* GL_NV_vertex_program */
1743 GLenum ErrorValue
; /* Last error code */
1744 GLenum RenderMode
; /* either GL_RENDER, GL_SELECT, GL_FEEDBACK */
1745 GLuint NewState
; /* bitwise-or of _NEW_* flags */
1748 GLuint _TriangleCaps
; /* bitwise-or of DD_* flags */
1749 GLuint _ImageTransferState
;/* bitwise-or of IMAGE_*_BIT flags */
1750 GLfloat _EyeZDir
[3];
1751 GLfloat _ModelViewInvScale
;
1752 GLuint _NeedEyeCoords
;
1753 GLuint _NeedNormals
; /* Are vertex normal vectors needed? */
1755 struct gl_shine_tab
*_ShineTable
[2]; /* Active shine tables */
1756 struct gl_shine_tab
*_ShineTabList
; /* Mru list of inactive shine tables */
1758 struct gl_list_extensions listext
; /* driver dlist extensions */
1761 GLboolean OcclusionResult
; /**< for GL_HP_occlusion_test */
1762 GLboolean OcclusionResultSaved
; /**< for GL_HP_occlusion_test */
1764 /* Z buffer stuff */
1765 GLuint DepthMax
; /**< Max depth buffer value */
1766 GLfloat DepthMaxF
; /**< Float max depth buffer value */
1767 GLfloat MRD
; /**< minimum resolvable difference in Z values */
1769 /** Should 3Dfx Glide driver catch signals? */
1770 GLboolean CatchSignals
;
1772 /** For debugging/development only */
1774 GLboolean FirstTimeCurrent
;
1776 /** Dither disable via MESA_NO_DITHER env var */
1779 GLboolean Rendering
;
1781 #if defined(MESA_TRACE)
1782 struct _glapi_table
*TraceDispatch
;
1783 trace_context_t
*TraceCtx
;
1785 void *TraceDispatch
;
1789 /* Core tnl module support */
1790 struct gl_tnl_module TnlModule
;
1792 /* Hooks for module contexts. These will eventually live
1793 * in the driver or elsewhere.
1795 void *swrast_context
;
1796 void *swsetup_context
;
1797 void *swtnl_context
;
1799 void *acache_context
;
1804 /* The string names for GL_POINT, GL_LINE_LOOP, etc */
1805 extern const char *_mesa_prim_name
[GL_POLYGON
+4];
1809 extern int MESA_VERBOSE
;
1810 extern int MESA_DEBUG_FLAGS
;
1812 # define MESA_VERBOSE 0
1813 # define MESA_DEBUG_FLAGS 0
1821 VERBOSE_VARRAY
= 0x0001,
1822 VERBOSE_TEXTURE
= 0x0002,
1823 VERBOSE_IMMEDIATE
= 0x0004,
1824 VERBOSE_PIPELINE
= 0x0008,
1825 VERBOSE_DRIVER
= 0x0010,
1826 VERBOSE_STATE
= 0x0020,
1827 VERBOSE_API
= 0x0040,
1828 VERBOSE_DISPLAY_LIST
= 0x0200,
1829 VERBOSE_LIGHTING
= 0x0400
1834 DEBUG_ALWAYS_FLUSH
= 0x1
1839 #define Elements(x) sizeof(x)/sizeof(*(x))
1843 /* Eventually let the driver specify what statechanges require a flush:
1845 #define FLUSH_VERTICES(ctx, newstate) \
1847 if (ctx->Driver.NeedFlush & FLUSH_STORED_VERTICES) \
1848 ctx->Driver.FlushVertices(ctx, FLUSH_STORED_VERTICES); \
1849 ctx->NewState |= newstate; \
1852 #define FLUSH_CURRENT(ctx, newstate) \
1854 if (ctx->Driver.NeedFlush & FLUSH_UPDATE_CURRENT) \
1855 ctx->Driver.FlushVertices(ctx, FLUSH_UPDATE_CURRENT); \
1856 ctx->NewState |= newstate; \
1859 #define ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, retval) \
1861 if (ctx->Driver.CurrentExecPrimitive != PRIM_OUTSIDE_BEGIN_END) { \
1862 _mesa_error( ctx, GL_INVALID_OPERATION, "begin/end" ); \
1867 #define ASSERT_OUTSIDE_BEGIN_END(ctx) \
1869 if (ctx->Driver.CurrentExecPrimitive != PRIM_OUTSIDE_BEGIN_END) { \
1870 _mesa_error( ctx, GL_INVALID_OPERATION, "begin/end" ); \
1875 #define ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx) \
1877 ASSERT_OUTSIDE_BEGIN_END(ctx); \
1878 FLUSH_VERTICES(ctx, 0); \
1881 #define ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH_WITH_RETVAL(ctx, retval) \
1883 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, retval); \
1884 FLUSH_VERTICES(ctx, 0); \
1890 #endif /* TYPES_H */