1 /* $Id: mtypes.h,v 1.67 2002/03/16 00:53:15 brianp 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 GLboolean RasterPosValid
; /* Raster pos valid flag */
369 struct gl_depthbuffer_attrib
{
370 GLenum Func
; /* Function for depth buffer compare */
371 GLfloat Clear
; /* Value to clear depth buffer to */
372 GLboolean Test
; /* Depth buffering enabled flag */
373 GLboolean Mask
; /* Depth buffer writable? */
374 GLboolean OcclusionTest
; /* GL_HP_occlusion_test */
378 struct gl_enable_attrib
{
380 GLboolean AutoNormal
;
382 GLboolean ClipPlane
[MAX_CLIP_PLANES
];
383 GLboolean ColorMaterial
;
384 GLboolean Convolution1D
;
385 GLboolean Convolution2D
;
386 GLboolean Separable2D
;
392 GLboolean Light
[MAX_LIGHTS
];
394 GLboolean LineSmooth
;
395 GLboolean LineStipple
;
396 GLboolean IndexLogicOp
;
397 GLboolean ColorLogicOp
;
398 GLboolean Map1Color4
;
400 GLboolean Map1Normal
;
401 GLboolean Map1TextureCoord1
;
402 GLboolean Map1TextureCoord2
;
403 GLboolean Map1TextureCoord3
;
404 GLboolean Map1TextureCoord4
;
405 GLboolean Map1Vertex3
;
406 GLboolean Map1Vertex4
;
407 GLboolean Map1Attrib
[16]; /* GL_NV_vertex_program */
408 GLboolean Map2Color4
;
410 GLboolean Map2Normal
;
411 GLboolean Map2TextureCoord1
;
412 GLboolean Map2TextureCoord2
;
413 GLboolean Map2TextureCoord3
;
414 GLboolean Map2TextureCoord4
;
415 GLboolean Map2Vertex3
;
416 GLboolean Map2Vertex4
;
417 GLboolean Map2Attrib
[16]; /* GL_NV_vertex_program */
420 GLboolean PixelTexture
;
421 GLboolean PointSmooth
;
422 GLboolean PolygonOffsetPoint
;
423 GLboolean PolygonOffsetLine
;
424 GLboolean PolygonOffsetFill
;
425 GLboolean PolygonSmooth
;
426 GLboolean PolygonStipple
;
427 GLboolean RescaleNormals
;
430 GLboolean MultisampleEnabled
; /* GL_ARB_multisample */
431 GLboolean SampleAlphaToCoverage
; /* GL_ARB_multisample */
432 GLboolean SampleAlphaToOne
; /* GL_ARB_multisample */
433 GLboolean SampleCoverage
; /* GL_ARB_multisample */
434 GLboolean SampleCoverageInvert
; /* GL_ARB_multisample */
435 GLboolean RasterPositionUnclipped
; /* GL_IBM_rasterpos_clip */
436 GLuint Texture
[MAX_TEXTURE_UNITS
];
437 GLuint TexGen
[MAX_TEXTURE_UNITS
];
438 /* GL_NV_vertex_program */
439 GLboolean VertexProgram
;
440 GLboolean VertexProgramPointSize
;
441 GLboolean VertexProgramTwoSide
;
445 struct gl_eval_attrib
{
447 GLboolean Map1Color4
;
449 GLboolean Map1Normal
;
450 GLboolean Map1TextureCoord1
;
451 GLboolean Map1TextureCoord2
;
452 GLboolean Map1TextureCoord3
;
453 GLboolean Map1TextureCoord4
;
454 GLboolean Map1Vertex3
;
455 GLboolean Map1Vertex4
;
456 GLboolean Map1Attrib
[16]; /* GL_NV_vertex_program */
457 GLboolean Map2Color4
;
459 GLboolean Map2Normal
;
460 GLboolean Map2TextureCoord1
;
461 GLboolean Map2TextureCoord2
;
462 GLboolean Map2TextureCoord3
;
463 GLboolean Map2TextureCoord4
;
464 GLboolean Map2Vertex3
;
465 GLboolean Map2Vertex4
;
466 GLboolean Map2Attrib
[16]; /* GL_NV_vertex_program */
467 GLboolean AutoNormal
;
468 /* Map Grid endpoints and divisions and calculated du values */
470 GLfloat MapGrid1u1
, MapGrid1u2
, MapGrid1du
;
471 GLint MapGrid2un
, MapGrid2vn
;
472 GLfloat MapGrid2u1
, MapGrid2u2
, MapGrid2du
;
473 GLfloat MapGrid2v1
, MapGrid2v2
, MapGrid2dv
;
477 struct gl_fog_attrib
{
478 GLboolean Enabled
; /* Fog enabled flag */
479 GLfloat Color
[4]; /* Fog color */
480 GLfloat Density
; /* Density >= 0.0 */
481 GLfloat Start
; /* Start distance in eye coords */
482 GLfloat End
; /* End distance in eye coords */
483 GLfloat Index
; /* Fog index */
484 GLenum Mode
; /* Fog mode */
485 GLboolean ColorSumEnabled
;
486 GLenum FogCoordinateSource
; /* GL_EXT_fog_coord */
490 struct gl_hint_attrib
{
491 /* always one of GL_FASTEST, GL_NICEST, or GL_DONT_CARE */
492 GLenum PerspectiveCorrection
;
495 GLenum PolygonSmooth
;
497 GLenum ClipVolumeClipping
; /* GL_EXT_clip_volume_hint */
498 GLenum TextureCompression
; /* GL_ARB_texture_compression */
499 GLenum GenerateMipmap
; /* GL_SGIS_generate_mipmap */
503 struct gl_histogram_attrib
{
504 GLuint Width
; /* number of table entries */
505 GLint Format
; /* GL_ALPHA, GL_RGB, etc */
506 GLuint Count
[HISTOGRAM_TABLE_SIZE
][4]; /* the histogram */
507 GLboolean Sink
; /* terminate image transfer? */
508 GLubyte RedSize
; /* Bits per counter */
512 GLubyte LuminanceSize
;
516 struct gl_minmax_attrib
{
519 GLfloat Min
[4], Max
[4]; /* RGBA */
523 struct gl_convolution_attrib
{
525 GLenum InternalFormat
;
528 GLfloat Filter
[MAX_CONVOLUTION_WIDTH
* MAX_CONVOLUTION_HEIGHT
* 4];
532 #define LIGHT_SPOT 0x1
533 #define LIGHT_LOCAL_VIEWER 0x2
534 #define LIGHT_POSITIONAL 0x4
535 #define LIGHT_NEED_VERTICES (LIGHT_POSITIONAL|LIGHT_LOCAL_VIEWER)
537 struct gl_light_attrib
{
538 struct gl_light Light
[MAX_LIGHTS
]; /* Array of lights */
539 struct gl_lightmodel Model
; /* Lighting model */
541 /* Must flush FLUSH_VERTICES before referencing:
543 struct gl_material Material
[2]; /* Material 0=front, 1=back */
545 GLboolean Enabled
; /* Lighting enabled flag */
546 GLenum ShadeModel
; /* GL_FLAT or GL_SMOOTH */
547 GLenum ColorMaterialFace
; /* GL_FRONT, BACK or FRONT_AND_BACK */
548 GLenum ColorMaterialMode
; /* GL_AMBIENT, GL_DIFFUSE, etc */
549 GLuint ColorMaterialBitmask
; /* bitmask formed from Face and Mode */
550 GLboolean ColorMaterialEnabled
;
552 struct gl_light EnabledList
; /* List sentinel */
554 /* Derived for optimizations: */
555 GLboolean _NeedVertices
; /* Use fast shader? */
556 GLuint _Flags
; /* LIGHT_* flags, see above */
557 GLfloat _BaseColor
[2][3];
561 struct gl_line_attrib
{
562 GLboolean SmoothFlag
; /* GL_LINE_SMOOTH enabled? */
563 GLboolean StippleFlag
; /* GL_LINE_STIPPLE enabled? */
564 GLushort StipplePattern
; /* Stipple pattern */
565 GLint StippleFactor
; /* Stipple repeat factor */
566 GLfloat Width
; /* Line width */
567 GLfloat _Width
; /* Clamped Line width */
571 struct gl_list_attrib
{
576 struct gl_list_opcode
{
578 void (*execute
)( GLcontext
*ctx
, void *data
);
579 void (*destroy
)( GLcontext
*ctx
, void *data
);
580 void (*print
)( GLcontext
*ctx
, void *data
);
583 #define GL_MAX_EXT_OPCODES 16
585 struct gl_list_extensions
{
586 struct gl_list_opcode opcode
[GL_MAX_EXT_OPCODES
];
591 struct gl_multisample_attrib
{
593 GLboolean SampleAlphaToCoverage
;
594 GLboolean SampleAlphaToOne
;
595 GLboolean SampleCoverage
;
596 GLfloat SampleCoverageValue
;
597 GLboolean SampleCoverageInvert
;
601 struct gl_pixel_attrib
{
602 GLenum ReadBuffer
; /* src buffer for glRead/CopyPixels */
603 GLenum DriverReadBuffer
; /* Driver's current source buffer */
604 GLfloat RedBias
, RedScale
;
605 GLfloat GreenBias
, GreenScale
;
606 GLfloat BlueBias
, BlueScale
;
607 GLfloat AlphaBias
, AlphaScale
;
608 GLfloat DepthBias
, DepthScale
;
609 GLint IndexShift
, IndexOffset
;
610 GLboolean MapColorFlag
;
611 GLboolean MapStencilFlag
;
612 GLfloat ZoomX
, ZoomY
;
613 /* XXX move these out of gl_pixel_attrib */
614 GLint MapStoSsize
; /* Size of each pixel map */
624 GLint MapStoS
[MAX_PIXEL_MAP_TABLE
]; /* Pixel map tables */
625 GLint MapItoI
[MAX_PIXEL_MAP_TABLE
];
626 GLfloat MapItoR
[MAX_PIXEL_MAP_TABLE
];
627 GLfloat MapItoG
[MAX_PIXEL_MAP_TABLE
];
628 GLfloat MapItoB
[MAX_PIXEL_MAP_TABLE
];
629 GLfloat MapItoA
[MAX_PIXEL_MAP_TABLE
];
630 GLubyte MapItoR8
[MAX_PIXEL_MAP_TABLE
]; /* converted to 8-bit color */
631 GLubyte MapItoG8
[MAX_PIXEL_MAP_TABLE
];
632 GLubyte MapItoB8
[MAX_PIXEL_MAP_TABLE
];
633 GLubyte MapItoA8
[MAX_PIXEL_MAP_TABLE
];
634 GLfloat MapRtoR
[MAX_PIXEL_MAP_TABLE
];
635 GLfloat MapGtoG
[MAX_PIXEL_MAP_TABLE
];
636 GLfloat MapBtoB
[MAX_PIXEL_MAP_TABLE
];
637 GLfloat MapAtoA
[MAX_PIXEL_MAP_TABLE
];
638 /* GL_EXT_histogram */
639 GLboolean HistogramEnabled
;
640 GLboolean MinMaxEnabled
;
641 /* GL_SGIS_pixel_texture */
642 GLboolean PixelTextureEnabled
;
643 GLenum FragmentRgbSource
;
644 GLenum FragmentAlphaSource
;
645 /* GL_SGI_color_matrix */
646 GLfloat PostColorMatrixScale
[4]; /* RGBA */
647 GLfloat PostColorMatrixBias
[4]; /* RGBA */
648 /* GL_SGI_color_table */
649 GLfloat ColorTableScale
[4];
650 GLfloat ColorTableBias
[4];
651 GLboolean ColorTableEnabled
;
652 GLfloat PCCTscale
[4];
654 GLboolean PostConvolutionColorTableEnabled
;
655 GLfloat PCMCTscale
[4];
656 GLfloat PCMCTbias
[4];
657 GLboolean PostColorMatrixColorTableEnabled
;
659 GLboolean Convolution1DEnabled
;
660 GLboolean Convolution2DEnabled
;
661 GLboolean Separable2DEnabled
;
662 GLfloat ConvolutionBorderColor
[3][4];
663 GLenum ConvolutionBorderMode
[3];
664 GLfloat ConvolutionFilterScale
[3][4];
665 GLfloat ConvolutionFilterBias
[3][4];
666 GLfloat PostConvolutionScale
[4]; /* RGBA */
667 GLfloat PostConvolutionBias
[4]; /* RGBA */
671 struct gl_point_attrib
{
672 GLboolean SmoothFlag
; /* True if GL_POINT_SMOOTH is enabled */
673 GLboolean SpriteMode
; /* GL_MESA_sprite_point extension */
674 GLfloat Size
; /* User-specified point size */
675 GLfloat _Size
; /* Size clamped to Const.Min/MaxPointSize */
676 GLfloat Params
[3]; /* GL_EXT_point_parameters */
677 GLfloat MinSize
, MaxSize
; /* GL_EXT_point_parameters */
678 GLfloat Threshold
; /* GL_EXT_point_parameters */
679 GLboolean _Attenuated
; /* True if Params != [1, 0, 0] */
683 struct gl_polygon_attrib
{
684 GLenum FrontFace
; /* Either GL_CW or GL_CCW */
685 GLenum FrontMode
; /* Either GL_POINT, GL_LINE or GL_FILL */
686 GLenum BackMode
; /* Either GL_POINT, GL_LINE or GL_FILL */
687 GLboolean _FrontBit
; /* */
688 GLboolean CullFlag
; /* Culling on/off flag */
689 GLboolean SmoothFlag
; /* True if GL_POLYGON_SMOOTH is enabled */
690 GLboolean StippleFlag
; /* True if GL_POLYGON_STIPPLE is enabled */
691 GLenum CullFaceMode
; /* Culling mode GL_FRONT or GL_BACK */
692 GLfloat OffsetFactor
; /* Polygon offset factor, from user */
693 GLfloat OffsetUnits
; /* Polygon offset units, from user */
694 GLfloat OffsetMRD
; /* = OffsetUnits * visual->MRD */
695 GLboolean OffsetPoint
; /* Offset in GL_POINT mode */
696 GLboolean OffsetLine
; /* Offset in GL_LINE mode */
697 GLboolean OffsetFill
; /* Offset in GL_FILL mode */
698 GLboolean _OffsetAny
;
702 struct gl_scissor_attrib
{
703 GLboolean Enabled
; /* Scissor test enabled? */
704 GLint X
, Y
; /* Lower left corner of box */
705 GLsizei Width
, Height
; /* Size of box */
709 struct gl_stencil_attrib
{
710 GLboolean Enabled
; /* Enabled flag */
711 GLenum Function
; /* Stencil function */
712 GLenum FailFunc
; /* Fail function */
713 GLenum ZPassFunc
; /* Depth buffer pass function */
714 GLenum ZFailFunc
; /* Depth buffer fail function */
715 GLstencil Ref
; /* Reference value */
716 GLstencil ValueMask
; /* Value mask */
717 GLstencil Clear
; /* Clear value */
718 GLstencil WriteMask
; /* Write mask */
722 /* TexGenEnabled flags */
728 /* Texture Enabled flags */
729 #define TEXTURE0_1D 0x1 /* Texture unit 0 (default) */
730 #define TEXTURE0_2D 0x2
731 #define TEXTURE0_3D 0x4
732 #define TEXTURE0_CUBE 0x8
733 #define TEXTURE0_ANY (TEXTURE0_1D | TEXTURE0_2D | TEXTURE0_3D | TEXTURE0_CUBE)
734 #define TEXTURE1_1D (TEXTURE0_1D << 4) /* Texture unit 1 */
735 #define TEXTURE1_2D (TEXTURE0_2D << 4)
736 #define TEXTURE1_3D (TEXTURE0_3D << 4)
737 #define TEXTURE1_CUBE (TEXTURE0_CUBE << 4)
738 #define TEXTURE1_ANY (TEXTURE1_1D | TEXTURE1_2D | TEXTURE1_3D | TEXTURE1_CUBE)
739 #define TEXTURE2_1D (TEXTURE0_1D << 8) /* Texture unit 2 */
740 #define TEXTURE2_2D (TEXTURE0_2D << 8)
741 #define TEXTURE2_3D (TEXTURE0_3D << 8)
742 #define TEXTURE2_CUBE (TEXTURE0_CUBE << 8)
743 #define TEXTURE2_ANY (TEXTURE2_1D | TEXTURE2_2D | TEXTURE2_3D | TEXTURE2_CUBE)
744 #define TEXTURE3_1D (TEXTURE0_1D << 12) /* Texture unit 3 */
745 #define TEXTURE3_2D (TEXTURE0_2D << 12)
746 #define TEXTURE3_3D (TEXTURE0_3D << 12)
747 #define TEXTURE3_CUBE (TEXTURE0_CUBE << 12)
748 #define TEXTURE3_ANY (TEXTURE3_1D | TEXTURE3_2D | TEXTURE3_3D | TEXTURE3_CUBE)
749 #define TEXTURE4_1D (TEXTURE0_1D << 16) /* Texture unit 4 */
750 #define TEXTURE4_2D (TEXTURE0_2D << 16)
751 #define TEXTURE4_3D (TEXTURE0_3D << 16)
752 #define TEXTURE4_CUBE (TEXTURE0_CUBE << 16)
753 #define TEXTURE5_ANY (TEXTURE3_1D | TEXTURE3_2D | TEXTURE3_3D | TEXTURE3_CUBE)
754 #define TEXTURE5_1D (TEXTURE0_1D << 20) /* Texture unit 5 */
755 #define TEXTURE5_2D (TEXTURE0_2D << 20)
756 #define TEXTURE5_3D (TEXTURE0_3D << 20)
757 #define TEXTURE5_CUBE (TEXTURE0_CUBE << 20)
758 #define TEXTURE5_ANY (TEXTURE3_1D | TEXTURE3_2D | TEXTURE3_3D | TEXTURE3_CUBE)
759 #define TEXTURE6_1D (TEXTURE0_1D << 24) /* Texture unit 6 */
760 #define TEXTURE6_2D (TEXTURE0_2D << 24)
761 #define TEXTURE6_3D (TEXTURE0_3D << 24)
762 #define TEXTURE6_CUBE (TEXTURE0_CUBE << 24)
763 #define TEXTURE6_ANY (TEXTURE3_1D | TEXTURE3_2D | TEXTURE3_3D | TEXTURE3_CUBE)
764 #define TEXTURE7_1D (TEXTURE0_1D << 28) /* Texture unit 7 */
765 #define TEXTURE7_2D (TEXTURE0_2D << 28)
766 #define TEXTURE7_3D (TEXTURE0_3D << 28)
767 #define TEXTURE7_CUBE (TEXTURE0_CUBE << 28)
768 #define TEXTURE7_ANY (TEXTURE3_1D | TEXTURE3_2D | TEXTURE3_3D | TEXTURE3_CUBE)
770 /* Bitmap versions of the GL_ constants.
772 #define TEXGEN_SPHERE_MAP 0x1
773 #define TEXGEN_OBJ_LINEAR 0x2
774 #define TEXGEN_EYE_LINEAR 0x4
775 #define TEXGEN_REFLECTION_MAP_NV 0x8
776 #define TEXGEN_NORMAL_MAP_NV 0x10
778 #define TEXGEN_NEED_NORMALS (TEXGEN_SPHERE_MAP | \
779 TEXGEN_REFLECTION_MAP_NV | \
780 TEXGEN_NORMAL_MAP_NV)
781 #define TEXGEN_NEED_EYE_COORD (TEXGEN_SPHERE_MAP | \
782 TEXGEN_REFLECTION_MAP_NV | \
783 TEXGEN_NORMAL_MAP_NV | \
788 /* A selection of state flags to make driver and module's lives easier.
790 #define ENABLE_TEXGEN0 0x1
791 #define ENABLE_TEXGEN1 0x2
792 #define ENABLE_TEXGEN2 0x4
793 #define ENABLE_TEXGEN3 0x8
794 #define ENABLE_TEXGEN4 0x10
795 #define ENABLE_TEXGEN5 0x20
796 #define ENABLE_TEXGEN6 0x40
797 #define ENABLE_TEXGEN7 0x80
799 #define ENABLE_TEXMAT0 0x1 /* Ie. not the identity matrix */
800 #define ENABLE_TEXMAT1 0x2
801 #define ENABLE_TEXMAT2 0x4
802 #define ENABLE_TEXMAT3 0x8
803 #define ENABLE_TEXMAT4 0x10
804 #define ENABLE_TEXMAT5 0x20
805 #define ENABLE_TEXMAT6 0x40
806 #define ENABLE_TEXMAT7 0x80
808 #define ENABLE_TEXGEN(i) (ENABLE_TEXGEN0 << (i))
809 #define ENABLE_TEXMAT(i) (ENABLE_TEXMAT0 << (i))
812 * If teximage is color-index, texelOut returns GLchan[1].
813 * If teximage is depth, texelOut returns GLfloat[1].
814 * Otherwise, texelOut returns GLchan[4].
816 typedef void (*FetchTexelFunc
)( const struct gl_texture_image
*texImage
,
817 GLint col
, GLint row
, GLint img
,
820 /* Texture format record */
821 struct gl_texture_format
{
822 GLint MesaFormat
; /* One of the MESA_FORMAT_* values */
824 GLenum BaseFormat
; /* Either GL_ALPHA, GL_INTENSITY, GL_LUMINANCE,
825 * GL_LUMINANCE_ALPHA, GL_RGB, GL_RGBA,
826 * GL_COLOR_INDEX or GL_DEPTH_COMPONENT.
828 GLenum Type
; /* Internal type as GL enum value */
830 GLubyte RedBits
; /* Bits per texel component */
834 GLubyte LuminanceBits
;
835 GLubyte IntensityBits
;
841 FetchTexelFunc FetchTexel1D
; /* Texel fetch function pointers */
842 FetchTexelFunc FetchTexel2D
;
843 FetchTexelFunc FetchTexel3D
;
846 /* Texture image record */
847 struct gl_texture_image
{
848 GLenum Format
; /* GL_ALPHA, GL_LUMINANCE, GL_LUMINANCE_ALPHA,
849 * GL_INTENSITY, GL_RGB, GL_RGBA,
850 * GL_COLOR_INDEX or GL_DEPTH_COMPONENT only.
852 GLint IntFormat
; /* Internal format as given by the user */
853 GLuint Border
; /* 0 or 1 */
854 GLuint Width
; /* = 2^WidthLog2 + 2*Border */
855 GLuint Height
; /* = 2^HeightLog2 + 2*Border */
856 GLuint Depth
; /* = 2^DepthLog2 + 2*Border */
857 GLuint Width2
; /* = Width - 2*Border */
858 GLuint Height2
; /* = Height - 2*Border */
859 GLuint Depth2
; /* = Depth - 2*Border */
860 GLuint WidthLog2
; /* = log2(Width2) */
861 GLuint HeightLog2
; /* = log2(Height2) */
862 GLuint DepthLog2
; /* = log2(Depth2) */
863 GLuint MaxLog2
; /* = MAX(WidthLog2, HeightLog2) */
864 GLvoid
*Data
; /* Image data, accessed via FetchTexel() */
866 const struct gl_texture_format
*TexFormat
;
868 FetchTexelFunc FetchTexel
; /* Texel fetch function pointer */
870 GLboolean IsCompressed
; /* GL_ARB_texture_compression */
871 GLuint CompressedSize
; /* GL_ARB_texture_compression */
873 /* For device driver: */
874 void *DriverData
; /* Arbitrary device driver data */
878 /* Texture object record */
879 struct gl_texture_object
{
880 _glthread_Mutex Mutex
; /* for thread safety */
881 GLint RefCount
; /* reference count */
882 GLuint Name
; /* an unsigned integer */
883 GLuint Dimensions
; /* 1 or 2 or 3 or 6 (cube map) */
884 GLfloat Priority
; /* in [0,1] */
885 GLfloat BorderValues
[4]; /* unclamped */
886 GLchan BorderColor
[4]; /* clamped, as GLchan */
887 GLenum WrapS
; /* Wrap modes are: GL_CLAMP, REPEAT */
888 GLenum WrapT
; /* GL_CLAMP_TO_EDGE, and */
889 GLenum WrapR
; /* GL_CLAMP_TO_BORDER_ARB */
890 GLenum MinFilter
; /* minification filter */
891 GLenum MagFilter
; /* magnification filter */
892 GLfloat MinLod
; /* min lambda, OpenGL 1.2 */
893 GLfloat MaxLod
; /* max lambda, OpenGL 1.2 */
894 GLint BaseLevel
; /* min mipmap level, OpenGL 1.2 */
895 GLint MaxLevel
; /* max mipmap level, OpenGL 1.2 */
896 GLfloat MaxAnisotropy
; /* GL_EXT_texture_filter_anisotropic */
897 GLboolean CompareFlag
; /* GL_SGIX_shadow */
898 GLenum CompareOperator
; /* GL_SGIX_shadow */
899 GLchan ShadowAmbient
; /* GL_SGIX/ARB_shadow_ambient */
900 GLenum CompareMode
; /* GL_ARB_shadow */
901 GLenum CompareFunc
; /* GL_ARB_shadow */
902 GLenum DepthMode
; /* GL_ARB_depth_texture */
903 GLint _MaxLevel
; /* actual max mipmap level (q in the spec) */
904 GLfloat _MaxLambda
; /* = _MaxLevel - BaseLevel (q - b in spec) */
905 GLboolean GenerateMipmap
; /* GL_SGIS_generate_mipmap */
907 struct gl_texture_image
*Image
[MAX_TEXTURE_LEVELS
];
909 /* Texture cube faces */
910 /* Image[] is alias for *PosX[MAX_TEXTURE_LEVELS]; */
911 struct gl_texture_image
*NegX
[MAX_TEXTURE_LEVELS
];
912 struct gl_texture_image
*PosY
[MAX_TEXTURE_LEVELS
];
913 struct gl_texture_image
*NegY
[MAX_TEXTURE_LEVELS
];
914 struct gl_texture_image
*PosZ
[MAX_TEXTURE_LEVELS
];
915 struct gl_texture_image
*NegZ
[MAX_TEXTURE_LEVELS
];
917 /* GL_EXT_paletted_texture */
918 struct gl_color_table Palette
;
920 GLboolean Complete
; /* Is texture object complete? */
921 struct gl_texture_object
*Next
; /* Next in linked list */
923 /* For device driver: */
924 void *DriverData
; /* Arbitrary device driver data */
930 * Texture units are new with the multitexture extension.
932 struct gl_texture_unit
{
933 GLuint Enabled
; /* bitmask of TEXTURE0_1D, _2D, _3D, _CUBE */
934 GLuint _ReallyEnabled
; /* 0 or one of TEXTURE0_1D, _2D, _3D, _CUBE */
936 GLenum EnvMode
; /* GL_MODULATE, GL_DECAL, GL_BLEND, etc. */
938 GLuint TexGenEnabled
; /* Bitwise-OR of [STRQ]_BIT values */
939 GLenum GenModeS
; /* Tex coord generation mode, either */
940 GLenum GenModeT
; /* GL_OBJECT_LINEAR, or */
941 GLenum GenModeR
; /* GL_EYE_LINEAR, or */
942 GLenum GenModeQ
; /* GL_SPHERE_MAP */
947 GLuint _GenFlags
; /* bitwise or of GenBit[STRQ] */
948 GLfloat ObjectPlaneS
[4];
949 GLfloat ObjectPlaneT
[4];
950 GLfloat ObjectPlaneR
[4];
951 GLfloat ObjectPlaneQ
[4];
952 GLfloat EyePlaneS
[4];
953 GLfloat EyePlaneT
[4];
954 GLfloat EyePlaneR
[4];
955 GLfloat EyePlaneQ
[4];
956 GLfloat LodBias
; /* for biasing mipmap levels */
958 /* GL_EXT_texture_env_combine */
959 GLenum CombineModeRGB
; /* GL_REPLACE, GL_DECAL, GL_ADD, etc. */
960 GLenum CombineModeA
; /* GL_REPLACE, GL_DECAL, GL_ADD, etc. */
961 GLenum CombineSourceRGB
[3]; /* GL_PRIMARY_COLOR, GL_TEXTURE, etc. */
962 GLenum CombineSourceA
[3]; /* GL_PRIMARY_COLOR, GL_TEXTURE, etc. */
963 GLenum CombineOperandRGB
[3]; /* SRC_COLOR, ONE_MINUS_SRC_COLOR, etc */
964 GLenum CombineOperandA
[3]; /* SRC_ALPHA, ONE_MINUS_SRC_ALPHA, etc */
965 GLuint CombineScaleShiftRGB
; /* 0, 1 or 2 */
966 GLuint CombineScaleShiftA
; /* 0, 1 or 2 */
968 struct gl_texture_object
*Current1D
;
969 struct gl_texture_object
*Current2D
;
970 struct gl_texture_object
*Current3D
;
971 struct gl_texture_object
*CurrentCubeMap
; /* GL_ARB_texture_cube_map */
973 struct gl_texture_object
*_Current
; /* Points to really enabled tex obj */
975 struct gl_texture_object Saved1D
; /* only used by glPush/PopAttrib */
976 struct gl_texture_object Saved2D
;
977 struct gl_texture_object Saved3D
;
978 struct gl_texture_object SavedCubeMap
;
982 struct gl_texture_attrib
{
984 GLuint CurrentUnit
; /* Active texture unit */
986 GLuint _ReallyEnabled
; /* enables for all texture units: */
987 /* = (Unit[0]._ReallyEnabled << 0) | */
988 /* (Unit[1]._ReallyEnabled << 4) | */
989 /* (Unit[2]._ReallyEnabled << 8) | etc... */
991 GLuint _GenFlags
; /* for texgen */
992 GLuint _TexGenEnabled
;
993 GLuint _TexMatEnabled
;
995 struct gl_texture_unit Unit
[MAX_TEXTURE_UNITS
];
997 struct gl_texture_object
*Proxy1D
;
998 struct gl_texture_object
*Proxy2D
;
999 struct gl_texture_object
*Proxy3D
;
1000 struct gl_texture_object
*ProxyCubeMap
;
1002 /* GL_EXT_shared_texture_palette */
1003 GLboolean SharedPalette
;
1004 struct gl_color_table Palette
;
1008 struct gl_transform_attrib
{
1009 GLenum MatrixMode
; /* Matrix mode */
1010 GLfloat EyeUserPlane
[MAX_CLIP_PLANES
][4];
1011 GLfloat _ClipUserPlane
[MAX_CLIP_PLANES
][4]; /* derived */
1012 GLboolean ClipEnabled
[MAX_CLIP_PLANES
];
1013 GLubyte _AnyClip
; /* How many ClipEnabled? */
1014 GLboolean Normalize
; /* Normalize all normals? */
1015 GLboolean RescaleNormals
; /* GL_EXT_rescale_normal */
1016 GLboolean RasterPositionUnclipped
; /* GL_IBM_rasterpos_clip */
1020 struct gl_viewport_attrib
{
1021 GLint X
, Y
; /* position */
1022 GLsizei Width
, Height
; /* size */
1023 GLfloat Near
, Far
; /* Depth buffer range */
1024 GLmatrix _WindowMap
; /* Mapping transformation as a matrix. */
1028 /* For the attribute stack: */
1029 struct gl_attrib_node
{
1032 struct gl_attrib_node
*next
;
1037 * Client pixel packing/unpacking attributes
1039 struct gl_pixelstore_attrib
{
1044 GLint ImageHeight
; /* for GL_EXT_texture3D */
1045 GLint SkipImages
; /* for GL_EXT_texture3D */
1046 GLboolean SwapBytes
;
1051 #define CA_CLIENT_DATA 0x1 /* Data not alloced by mesa */
1055 * Client vertex array attributes
1057 struct gl_client_array
{
1060 GLsizei Stride
; /* user-specified stride */
1061 GLsizei StrideB
; /* actual stride in bytes */
1064 GLuint Enabled
; /* one of the _NEW_ARRAY_ bits */
1068 struct gl_array_attrib
{
1069 struct gl_client_array Vertex
; /* client data descriptors */
1070 struct gl_client_array Normal
;
1071 struct gl_client_array Color
;
1072 struct gl_client_array SecondaryColor
;
1073 struct gl_client_array FogCoord
;
1074 struct gl_client_array Index
;
1075 struct gl_client_array TexCoord
[MAX_TEXTURE_UNITS
];
1076 struct gl_client_array EdgeFlag
;
1078 struct gl_client_array VertexAttrib
[16]; /* GL_NV_vertex_program */
1080 GLint TexCoordInterleaveFactor
;
1081 GLint ActiveTexture
; /* Client Active Texture */
1085 GLuint _Enabled
; /* _NEW_ARRAY_* - bit set if array enabled */
1086 GLuint NewState
; /* _NEW_ARRAY_* */
1090 struct gl_feedback
{
1092 GLuint _Mask
; /* FB_* bits */
1099 struct gl_selection
{
1101 GLuint BufferSize
; /* size of SelectBuffer */
1102 GLuint BufferCount
; /* number of values in SelectBuffer */
1103 GLuint Hits
; /* number of records in SelectBuffer */
1104 GLuint NameStackDepth
;
1105 GLuint NameStack
[MAX_NAME_STACK_DEPTH
];
1107 GLfloat HitMinZ
, HitMaxZ
;
1112 * 1-D Evaluator control points
1115 GLuint Order
; /* Number of control points */
1116 GLfloat u1
, u2
, du
; /* u1, u2, 1.0/(u2-u1) */
1117 GLfloat
*Points
; /* Points to contiguous control points */
1122 * 2-D Evaluator control points
1125 GLuint Uorder
; /* Number of control points in U dimension */
1126 GLuint Vorder
; /* Number of control points in V dimension */
1129 GLfloat
*Points
; /* Points to contiguous control points */
1134 * All evalutator control points
1136 struct gl_evaluators
{
1138 struct gl_1d_map Map1Vertex3
;
1139 struct gl_1d_map Map1Vertex4
;
1140 struct gl_1d_map Map1Index
;
1141 struct gl_1d_map Map1Color4
;
1142 struct gl_1d_map Map1Normal
;
1143 struct gl_1d_map Map1Texture1
;
1144 struct gl_1d_map Map1Texture2
;
1145 struct gl_1d_map Map1Texture3
;
1146 struct gl_1d_map Map1Texture4
;
1147 struct gl_1d_map Map1Attrib
[16]; /* GL_NV_vertex_program */
1150 struct gl_2d_map Map2Vertex3
;
1151 struct gl_2d_map Map2Vertex4
;
1152 struct gl_2d_map Map2Index
;
1153 struct gl_2d_map Map2Color4
;
1154 struct gl_2d_map Map2Normal
;
1155 struct gl_2d_map Map2Texture1
;
1156 struct gl_2d_map Map2Texture2
;
1157 struct gl_2d_map Map2Texture3
;
1158 struct gl_2d_map Map2Texture4
;
1159 struct gl_2d_map Map2Attrib
[16]; /* GL_NV_vertex_program */
1164 * Vertex program tokens and datatypes
1167 #define VP_MAX_INSTRUCTIONS 128
1169 #define VP_NUM_INPUT_REGS VERT_ATTRIB_MAX
1170 #define VP_NUM_OUTPUT_REGS 15
1171 #define VP_NUM_TEMP_REGS 12
1172 #define VP_NUM_PROG_REGS 96
1174 #define VP_NUM_TOTAL_REGISTERS (VP_NUM_INPUT_REGS + VP_NUM_OUTPUT_REGS + VP_NUM_TEMP_REGS + VP_NUM_PROG_REGS)
1176 /* Location of register sets within the whole register file */
1177 #define VP_INPUT_REG_START 0
1178 #define VP_INPUT_REG_END (VP_INPUT_REG_START + VP_NUM_INPUT_REGS - 1)
1179 #define VP_OUTPUT_REG_START (VP_INPUT_REG_END + 1)
1180 #define VP_OUTPUT_REG_END (VP_OUTPUT_REG_START + VP_NUM_OUTPUT_REGS - 1)
1181 #define VP_TEMP_REG_START (VP_OUTPUT_REG_END + 1)
1182 #define VP_TEMP_REG_END (VP_TEMP_REG_START + VP_NUM_TEMP_REGS - 1)
1183 #define VP_PROG_REG_START (VP_TEMP_REG_END + 1)
1184 #define VP_PROG_REG_END (VP_PROG_REG_START + VP_NUM_PROG_REGS - 1)
1187 /* Machine state (i.e. the register file) */
1190 GLfloat Registers
[VP_NUM_TOTAL_REGISTERS
][4];
1191 GLint AddressReg
; /* might someday be a 4-vector */
1195 /* Vertex program opcodes */
1223 /* Instruction source register */
1224 struct vp_src_register
1226 GLint Register
; /* or the offset from the address register */
1233 /* Instruction destination register */
1234 struct vp_dst_register
1237 GLboolean WriteMask
[4];
1241 /* Vertex program instruction */
1242 struct vp_instruction
1244 enum vp_opcode Opcode
;
1245 struct vp_src_register SrcReg
[3];
1246 struct vp_dst_register DstReg
;
1250 /* The actual vertex program, stored in the hash table */
1253 GLubyte
*String
; /* Original user code */
1254 struct vp_instruction
*Instructions
; /* Compiled instructions */
1255 GLenum Target
; /* GL_VERTEX_PROGRAM_NV or GL_VERTEX_STATE_PROGRAM_NV */
1256 GLint ErrorPos
; /* Position in string where error was detected */
1257 GLint RefCount
; /* Since programs can be shared among contexts */
1258 GLboolean IsPositionInvariant
; /* GL_NV_vertex_program1_1 */
1260 GLuint InputsRead
; /* Bitmask of which input regs are read */
1261 GLuint OutputsWritten
; /* Bitmask of which output regs are written to */
1266 * State vars for GL_NV_vertex_program
1268 struct vertex_program_state
1270 GLboolean Enabled
; /* GL_VERTEX_PROGRAM_NV */
1271 GLboolean PointSizeEnabled
; /* GL_VERTEX_PROGRAM_POINT_SIZE_NV */
1272 GLboolean TwoSideEnabled
; /* GL_VERTEX_PROGRAM_TWO_SIDE_NV */
1273 GLuint CurrentID
; /* currently bound program's ID */
1274 struct vp_program
*Current
; /* ptr to currently bound program */
1275 struct vp_machine Machine
; /* machine state */
1277 GLenum TrackMatrix
[VP_NUM_PROG_REGS
/ 4];
1278 GLenum TrackMatrixTransform
[VP_NUM_PROG_REGS
/ 4];
1284 * State which can be shared by multiple contexts:
1286 struct gl_shared_state
{
1287 _glthread_Mutex Mutex
; /* for thread safety */
1288 GLint RefCount
; /* Reference count */
1289 struct _mesa_HashTable
*DisplayList
; /* Display lists hash table */
1290 struct _mesa_HashTable
*TexObjects
; /* Texture objects hash table */
1291 struct gl_texture_object
*TexObjectList
;/* Linked list of texture objects */
1293 /* Default texture objects (shared by all multi-texture units) */
1294 struct gl_texture_object
*Default1D
;
1295 struct gl_texture_object
*Default2D
;
1296 struct gl_texture_object
*Default3D
;
1297 struct gl_texture_object
*DefaultCubeMap
;
1299 /* GL_NV_vertex_program */
1300 struct _mesa_HashTable
*VertexPrograms
;
1302 void *DriverData
; /* Device driver shared state */
1307 * A "frame buffer" is a color buffer and its optional ancillary buffers:
1308 * depth, accum, stencil, and software-simulated alpha buffers.
1309 * In C++ terms, think of this as a base class from which device drivers
1310 * will make derived classes.
1312 struct gl_frame_buffer
{
1313 GLvisual Visual
; /* The corresponding visual */
1315 GLuint Width
, Height
; /* size of frame buffer in pixels */
1317 GLboolean UseSoftwareDepthBuffer
;
1318 GLboolean UseSoftwareAccumBuffer
;
1319 GLboolean UseSoftwareStencilBuffer
;
1320 GLboolean UseSoftwareAlphaBuffers
;
1322 /* Software depth (aka Z) buffer */
1323 GLvoid
*DepthBuffer
; /* array [Width*Height] of GLushort or GLuint*/
1325 /* Software stencil buffer */
1326 GLstencil
*Stencil
; /* array [Width*Height] of GLstencil values */
1328 /* Software accumulation buffer */
1329 GLaccum
*Accum
; /* array [4*Width*Height] of GLaccum values */
1331 /* Software alpha planes */
1332 GLchan
*FrontLeftAlpha
; /* array [Width*Height] of GLubyte */
1333 GLchan
*BackLeftAlpha
; /* array [Width*Height] of GLubyte */
1334 GLchan
*FrontRightAlpha
; /* array [Width*Height] of GLubyte */
1335 GLchan
*BackRightAlpha
; /* array [Width*Height] of GLubyte */
1336 GLchan
*Alpha
; /* Points to current alpha buffer */
1338 /* Drawing bounds: intersection of window size and scissor box */
1339 GLint _Xmin
, _Ymin
; /* inclusive */
1340 GLint _Xmax
, _Ymax
; /* exclusive */
1345 * Constants which may be overriden by device driver during context creation
1346 * but are never changed after that.
1348 struct gl_constants
{
1349 GLint MaxTextureLevels
;
1350 GLint Max3DTextureLevels
;
1351 GLint MaxCubeTextureLevels
;
1352 GLuint MaxTextureUnits
;
1353 GLfloat MaxTextureMaxAnisotropy
; /* GL_EXT_texture_filter_anisotropic */
1354 GLfloat MaxTextureLodBias
; /* GL_EXT_texture_lod_bias */
1355 GLuint MaxArrayLockSize
;
1357 GLfloat MinPointSize
, MaxPointSize
; /* aliased */
1358 GLfloat MinPointSizeAA
, MaxPointSizeAA
; /* antialiased */
1359 GLfloat PointSizeGranularity
;
1360 GLfloat MinLineWidth
, MaxLineWidth
; /* aliased */
1361 GLfloat MinLineWidthAA
, MaxLineWidthAA
; /* antialiased */
1362 GLfloat LineWidthGranularity
;
1363 GLuint NumAuxBuffers
;
1364 GLuint MaxColorTableSize
;
1365 GLuint MaxConvolutionWidth
;
1366 GLuint MaxConvolutionHeight
;
1367 GLuint NumCompressedTextureFormats
; /* GL_ARB_texture_compression */
1368 GLenum CompressedTextureFormats
[MAX_COMPRESSED_TEXTURE_FORMATS
];
1369 GLuint MaxClipPlanes
;
1375 * List of extensions.
1378 struct gl_extensions
{
1380 struct extension
*ext_list
;
1381 /* Flags to quickly test if certain extensions are available.
1382 * Not every extension needs to have such a flag, but it's encouraged.
1384 GLboolean ARB_depth_texture
;
1385 GLboolean ARB_imaging
;
1386 GLboolean ARB_multisample
;
1387 GLboolean ARB_multitexture
;
1388 GLboolean ARB_shadow
;
1389 GLboolean ARB_texture_border_clamp
;
1390 GLboolean ARB_texture_compression
;
1391 GLboolean ARB_texture_cube_map
;
1392 GLboolean ARB_texture_env_combine
;
1393 GLboolean ARB_texture_env_dot3
;
1394 GLboolean ARB_texture_mirrored_repeat
;
1395 GLboolean ARB_window_pos
;
1396 GLboolean EXT_blend_color
;
1397 GLboolean EXT_blend_func_separate
;
1398 GLboolean EXT_blend_logic_op
;
1399 GLboolean EXT_blend_minmax
;
1400 GLboolean EXT_blend_subtract
;
1401 GLboolean EXT_clip_volume_hint
;
1402 GLboolean EXT_convolution
;
1403 GLboolean EXT_compiled_vertex_array
;
1404 GLboolean EXT_fog_coord
;
1405 GLboolean EXT_histogram
;
1406 GLboolean EXT_packed_pixels
;
1407 GLboolean EXT_paletted_texture
;
1408 GLboolean EXT_point_parameters
;
1409 GLboolean EXT_polygon_offset
;
1410 GLboolean EXT_rescale_normal
;
1411 GLboolean EXT_secondary_color
;
1412 GLboolean EXT_shared_texture_palette
;
1413 GLboolean EXT_stencil_wrap
;
1414 GLboolean EXT_texture3D
;
1415 GLboolean EXT_texture_compression_s3tc
;
1416 GLboolean EXT_texture_env_add
;
1417 GLboolean EXT_texture_env_combine
;
1418 GLboolean EXT_texture_env_dot3
;
1419 GLboolean EXT_texture_filter_anisotropic
;
1420 GLboolean EXT_texture_object
;
1421 GLboolean EXT_texture_lod_bias
;
1422 GLboolean EXT_vertex_array_set
;
1423 GLboolean HP_occlusion_test
;
1424 GLboolean IBM_rasterpos_clip
;
1425 GLboolean INGR_blend_func_separate
;
1426 GLboolean MESA_window_pos
;
1427 GLboolean MESA_resize_buffers
;
1428 GLboolean MESA_sprite_point
;
1429 GLboolean NV_blend_square
;
1430 GLboolean NV_texgen_reflection
;
1431 GLboolean NV_vertex_program
;
1432 GLboolean NV_vertex_program1_1
;
1433 GLboolean SGI_color_matrix
;
1434 GLboolean SGI_color_table
;
1435 GLboolean SGIS_generate_mipmap
;
1436 GLboolean SGIS_pixel_texture
;
1437 GLboolean SGIS_texture_edge_clamp
;
1438 GLboolean SGIX_depth_texture
;
1439 GLboolean SGIX_pixel_texture
;
1440 GLboolean SGIX_shadow
;
1441 GLboolean SGIX_shadow_ambient
; /* or GL_ARB_shadow_ambient */
1442 GLboolean _3DFX_texture_compression_FXT1
;
1446 /* XXX just an idea */
1449 GLmatrix
*Top
; /* points into Stack */
1450 GLmatrix
*Stack
; /* array [MaxDepth] of GLmatrix */
1451 GLuint Depth
; /* 0 <= Depth < MaxDepth */
1452 GLuint MaxDepth
; /* size of Stack[] array */
1453 GLuint DirtyFlag
; /* _NEW_MODELVIEW or _NEW_PROJECTION, for example */
1458 * Bits for image transfer operations (ctx->ImageTransferState).
1460 #define IMAGE_SCALE_BIAS_BIT 0x1
1461 #define IMAGE_SHIFT_OFFSET_BIT 0x2
1462 #define IMAGE_MAP_COLOR_BIT 0x4
1463 #define IMAGE_COLOR_TABLE_BIT 0x8
1464 #define IMAGE_CONVOLUTION_BIT 0x10
1465 #define IMAGE_POST_CONVOLUTION_SCALE_BIAS 0x20
1466 #define IMAGE_POST_CONVOLUTION_COLOR_TABLE_BIT 0x40
1467 #define IMAGE_COLOR_MATRIX_BIT 0x80
1468 #define IMAGE_POST_COLOR_MATRIX_COLOR_TABLE_BIT 0x100
1469 #define IMAGE_HISTOGRAM_BIT 0x200
1470 #define IMAGE_MIN_MAX_BIT 0x400
1472 /* transfer ops up to convolution: */
1473 #define IMAGE_PRE_CONVOLUTION_BITS (IMAGE_SCALE_BIAS_BIT | \
1474 IMAGE_SHIFT_OFFSET_BIT | \
1475 IMAGE_MAP_COLOR_BIT | \
1476 IMAGE_COLOR_TABLE_BIT)
1478 /* transfer ops after convolution: */
1479 #define IMAGE_POST_CONVOLUTION_BITS (IMAGE_POST_CONVOLUTION_SCALE_BIAS | \
1480 IMAGE_POST_CONVOLUTION_COLOR_TABLE_BIT | \
1481 IMAGE_COLOR_MATRIX_BIT | \
1482 IMAGE_POST_COLOR_MATRIX_COLOR_TABLE_BIT |\
1483 IMAGE_HISTOGRAM_BIT | \
1488 * Bits to indicate what state has changed. 6 unused flags.
1490 #define _NEW_MODELVIEW 0x1 /* ctx->ModelView */
1491 #define _NEW_PROJECTION 0x2 /* ctx->Projection */
1492 #define _NEW_TEXTURE_MATRIX 0x4 /* ctx->TextureMatrix */
1493 #define _NEW_COLOR_MATRIX 0x8 /* ctx->ColorMatrix */
1494 #define _NEW_ACCUM 0x10 /* ctx->Accum */
1495 #define _NEW_COLOR 0x20 /* ctx->Color */
1496 #define _NEW_DEPTH 0x40 /* ctx->Depth */
1497 #define _NEW_EVAL 0x80 /* ctx->Eval, ctx->EvalMap */
1498 #define _NEW_FOG 0x100 /* ctx->Fog */
1499 #define _NEW_HINT 0x200 /* ctx->Hint */
1500 #define _NEW_LIGHT 0x400 /* ctx->Light */
1501 #define _NEW_LINE 0x800 /* ctx->Line */
1502 #define _NEW_PIXEL 0x1000 /* ctx->Pixel */
1503 #define _NEW_POINT 0x2000 /* ctx->Point */
1504 #define _NEW_POLYGON 0x4000 /* ctx->Polygon */
1505 #define _NEW_POLYGONSTIPPLE 0x8000 /* ctx->PolygonStipple */
1506 #define _NEW_SCISSOR 0x10000 /* ctx->Scissor */
1507 #define _NEW_STENCIL 0x20000 /* ctx->Stencil */
1508 #define _NEW_TEXTURE 0x40000 /* ctx->Texture */
1509 #define _NEW_TRANSFORM 0x80000 /* ctx->Transform */
1510 #define _NEW_VIEWPORT 0x100000 /* ctx->Viewport */
1511 #define _NEW_PACKUNPACK 0x200000 /* ctx->Pack, ctx->Unpack */
1512 #define _NEW_ARRAY 0x400000 /* ctx->Array */
1513 #define _NEW_RENDERMODE 0x800000 /* RenderMode, Feedback, Select */
1514 #define _NEW_BUFFERS 0x1000000 /* ctx->Visual, ctx->DrawBuffer, */
1515 #define _NEW_MULTISAMPLE 0x2000000 /* ctx->Multisample */
1516 #define _NEW_TRACK_MATRIX 0x4000000 /* ctx->VertexProgram */
1517 #define _NEW_PROGRAM 0x8000000 /* ctx->VertexProgram */
1522 /* Bits to track array state changes (also used to summarize array enabled)
1524 #define _NEW_ARRAY_VERTEX VERT_BIT_POS
1525 #define _NEW_ARRAY_WEIGHT VERT_BIT_WEIGHT
1526 #define _NEW_ARRAY_NORMAL VERT_BIT_NORMAL
1527 #define _NEW_ARRAY_COLOR0 VERT_BIT_COLOR0
1528 #define _NEW_ARRAY_COLOR1 VERT_BIT_COLOR1
1529 #define _NEW_ARRAY_FOGCOORD VERT_BIT_FOG
1530 #define _NEW_ARRAY_INDEX VERT_BIT_SIX
1531 #define _NEW_ARRAY_EDGEFLAG VERT_BIT_SEVEN
1532 #define _NEW_ARRAY_TEXCOORD_0 VERT_BIT_TEX0
1533 #define _NEW_ARRAY_TEXCOORD_1 VERT_BIT_TEX1
1534 #define _NEW_ARRAY_TEXCOORD_2 VERT_BIT_TEX2
1535 #define _NEW_ARRAY_TEXCOORD_3 VERT_BIT_TEX3
1536 #define _NEW_ARRAY_TEXCOORD_4 VERT_BIT_TEX4
1537 #define _NEW_ARRAY_TEXCOORD_5 VERT_BIT_TEX5
1538 #define _NEW_ARRAY_TEXCOORD_6 VERT_BIT_TEX6
1539 #define _NEW_ARRAY_TEXCOORD_7 VERT_BIT_TEX7
1540 #define _NEW_ARRAY_ALL 0xffff
1541 #define _NEW_ARRAY_VERT_ATTRIB0 0x10000
1544 #define _NEW_ARRAY_TEXCOORD(i) (_NEW_ARRAY_TEXCOORD_0 << (i))
1546 /* A bunch of flags that we think might be useful to drivers.
1548 #define DD_FLATSHADE 0x1
1549 #define DD_SEPARATE_SPECULAR 0x2
1550 #define DD_TRI_CULL_FRONT_BACK 0x4 /* special case on some hw */
1551 #define DD_TRI_LIGHT_TWOSIDE 0x8
1552 #define DD_TRI_UNFILLED 0x10
1553 #define DD_TRI_SMOOTH 0x20
1554 #define DD_TRI_STIPPLE 0x40
1555 #define DD_TRI_OFFSET 0x80
1556 #define DD_LINE_SMOOTH 0x100
1557 #define DD_LINE_STIPPLE 0x200
1558 #define DD_LINE_WIDTH 0x400
1559 #define DD_POINT_SMOOTH 0x800
1560 #define DD_POINT_SIZE 0x1000
1561 #define DD_POINT_ATTEN 0x2000
1563 /* Define the state changes under which each of these bits might change
1565 #define _DD_NEW_FLATSHADE _NEW_LIGHT
1566 #define _DD_NEW_SEPARATE_SPECULAR (_NEW_LIGHT | _NEW_FOG)
1567 #define _DD_NEW_TRI_CULL_FRONT_BACK _NEW_POLYGON
1568 #define _DD_NEW_TRI_LIGHT_TWOSIDE _NEW_LIGHT
1569 #define _DD_NEW_TRI_UNFILLED _NEW_POLYGON
1570 #define _DD_NEW_TRI_SMOOTH _NEW_POLYGON
1571 #define _DD_NEW_TRI_STIPPLE _NEW_POLYGON
1572 #define _DD_NEW_TRI_OFFSET _NEW_POLYGON
1573 #define _DD_NEW_LINE_SMOOTH _NEW_LINE
1574 #define _DD_NEW_LINE_STIPPLE _NEW_LINE
1575 #define _DD_NEW_LINE_WIDTH _NEW_LINE
1576 #define _DD_NEW_POINT_SMOOTH _NEW_POINT
1577 #define _DD_NEW_POINT_SIZE _NEW_POINT
1578 #define _DD_NEW_POINT_ATTEN _NEW_POINT
1580 #define _MESA_NEW_NEED_EYE_COORDS (_NEW_LIGHT | \
1585 #define _MESA_NEW_NEED_NORMALS (_NEW_LIGHT | \
1588 #define _IMAGE_NEW_TRANSFER_STATE (_NEW_PIXEL | _NEW_COLOR_MATRIX)
1591 /* Bits for ctx->_NeedNormals */
1592 #define NEED_NORMALS_TEXGEN 0x1
1593 #define NEED_NORMALS_LIGHT 0x2
1595 /* Bits for ctx->_NeedEyeCoords */
1596 #define NEED_EYE_TEXGEN 0x1
1597 #define NEED_EYE_LIGHT 0x2
1598 #define NEED_EYE_LIGHT_MODELVIEW 0x4
1599 #define NEED_EYE_POINT_ATTEN 0x8
1600 #define NEED_EYE_DRIVER 0x10
1604 * Forward declaration of display list datatypes:
1607 typedef union node Node
;
1610 /* This has to be included here. */
1615 * Core Mesa's support for tnl modules:
1617 #define NUM_VERTEX_FORMAT_ENTRIES (sizeof(GLvertexformat) / sizeof(void *))
1619 struct gl_tnl_module
{
1620 /* Vertex format to be lazily swapped into current dispatch.
1622 GLvertexformat
*Current
;
1624 /* Record of functions swapped out. On restore, only need to swap
1625 * these functions back in.
1627 void *Swapped
[NUM_VERTEX_FORMAT_ENTRIES
][2];
1633 * This is the central context data structure for Mesa. Almost all
1634 * OpenGL state is contained in this structure.
1636 struct __GLcontextRec
{
1638 * OS related interfaces; these *must* be the first members of this
1639 * structure, because they are exposed to the outside world (i.e. GLX
1642 __GLimports imports
;
1643 __GLexports exports
;
1645 /* State possibly shared with other contexts in the address space */
1646 struct gl_shared_state
*Shared
;
1648 /* API function pointer tables */
1649 struct _glapi_table
*Save
; /**< Display list save funcs */
1650 struct _glapi_table
*Exec
; /**< Execute funcs */
1651 struct _glapi_table
*CurrentDispatch
; /**< == Save or Exec !! */
1653 GLboolean ExecPrefersFloat
; /**< What preference for color conversion? */
1654 GLboolean SavePrefersFloat
;
1657 GLframebuffer
*DrawBuffer
; /**< buffer for writing */
1658 GLframebuffer
*ReadBuffer
; /**< buffer for reading */
1661 * Device driver function pointer table
1663 struct dd_function_table Driver
;
1665 void *DriverCtx
; /**< Points to device driver context/state */
1666 void *DriverMgrCtx
; /**< Points to device driver manager (optional)*/
1668 /* Core/Driver constants */
1669 struct gl_constants Const
;
1671 /* The various 4x4 matrix stacks */
1672 struct matrix_stack ModelviewMatrixStack
;
1673 struct matrix_stack ProjectionMatrixStack
;
1674 struct matrix_stack ColorMatrixStack
;
1675 struct matrix_stack TextureMatrixStack
[MAX_TEXTURE_UNITS
];
1676 struct matrix_stack ProgramMatrixStack
[MAX_PROGRAM_MATRICES
];
1677 struct matrix_stack
*CurrentStack
; /* Points to one of the above stacks */
1679 /* Combined modelview and projection matrix */
1680 GLmatrix _ModelProjectMatrix
;
1683 GLuint CallDepth
; /* Current recursion calling depth */
1684 GLboolean ExecuteFlag
; /* Execute GL commands? */
1685 GLboolean CompileFlag
; /* Compile GL commands into display list? */
1686 Node
*CurrentListPtr
; /* Head of list being compiled */
1687 GLuint CurrentListNum
; /* Number of the list being compiled */
1688 Node
*CurrentBlock
; /* Pointer to current block of nodes */
1689 GLuint CurrentPos
; /* Index into current block of nodes */
1692 struct gl_extensions Extensions
;
1694 /* Renderer attribute stack */
1695 GLuint AttribStackDepth
;
1696 struct gl_attrib_node
*AttribStack
[MAX_ATTRIB_STACK_DEPTH
];
1698 /* Renderer attribute groups */
1699 struct gl_accum_attrib Accum
;
1700 struct gl_colorbuffer_attrib Color
;
1701 struct gl_current_attrib Current
;
1702 struct gl_depthbuffer_attrib Depth
;
1703 struct gl_eval_attrib Eval
;
1704 struct gl_fog_attrib Fog
;
1705 struct gl_hint_attrib Hint
;
1706 struct gl_light_attrib Light
;
1707 struct gl_line_attrib Line
;
1708 struct gl_list_attrib List
;
1709 struct gl_multisample_attrib Multisample
;
1710 struct gl_pixel_attrib Pixel
;
1711 struct gl_point_attrib Point
;
1712 struct gl_polygon_attrib Polygon
;
1713 GLuint PolygonStipple
[32];
1714 struct gl_scissor_attrib Scissor
;
1715 struct gl_stencil_attrib Stencil
;
1716 struct gl_texture_attrib Texture
;
1717 struct gl_transform_attrib Transform
;
1718 struct gl_viewport_attrib Viewport
;
1720 /* Other attribute groups */
1721 struct gl_histogram_attrib Histogram
;
1722 struct gl_minmax_attrib MinMax
;
1723 struct gl_convolution_attrib Convolution1D
;
1724 struct gl_convolution_attrib Convolution2D
;
1725 struct gl_convolution_attrib Separable2D
;
1727 /* Client attribute stack */
1728 GLuint ClientAttribStackDepth
;
1729 struct gl_attrib_node
*ClientAttribStack
[MAX_CLIENT_ATTRIB_STACK_DEPTH
];
1731 /* Client attribute groups */
1732 struct gl_array_attrib Array
; /* Vertex arrays */
1733 struct gl_pixelstore_attrib Pack
; /* Pixel packing */
1734 struct gl_pixelstore_attrib Unpack
; /* Pixel unpacking */
1736 struct gl_evaluators EvalMap
; /* All evaluators */
1737 struct gl_feedback Feedback
; /* Feedback */
1738 struct gl_selection Select
; /* Selection */
1740 struct gl_color_table ColorTable
; /* Pre-convolution */
1741 struct gl_color_table ProxyColorTable
; /* Pre-convolution */
1742 struct gl_color_table PostConvolutionColorTable
;
1743 struct gl_color_table ProxyPostConvolutionColorTable
;
1744 struct gl_color_table PostColorMatrixColorTable
;
1745 struct gl_color_table ProxyPostColorMatrixColorTable
;
1747 struct vertex_program_state VertexProgram
; /* GL_NV_vertex_program */
1749 GLenum ErrorValue
; /* Last error code */
1750 GLenum RenderMode
; /* either GL_RENDER, GL_SELECT, GL_FEEDBACK */
1751 GLuint NewState
; /* bitwise-or of _NEW_* flags */
1754 GLuint _TriangleCaps
; /* bitwise-or of DD_* flags */
1755 GLuint _ImageTransferState
;/* bitwise-or of IMAGE_*_BIT flags */
1756 GLfloat _EyeZDir
[3];
1757 GLfloat _ModelViewInvScale
;
1758 GLuint _NeedEyeCoords
;
1759 GLuint _NeedNormals
; /* Are vertex normal vectors needed? */
1761 struct gl_shine_tab
*_ShineTable
[2]; /* Active shine tables */
1762 struct gl_shine_tab
*_ShineTabList
; /* Mru list of inactive shine tables */
1764 struct gl_list_extensions listext
; /* driver dlist extensions */
1767 GLboolean OcclusionResult
; /**< for GL_HP_occlusion_test */
1768 GLboolean OcclusionResultSaved
; /**< for GL_HP_occlusion_test */
1770 /* Z buffer stuff */
1771 GLuint DepthMax
; /**< Max depth buffer value */
1772 GLfloat DepthMaxF
; /**< Float max depth buffer value */
1773 GLfloat MRD
; /**< minimum resolvable difference in Z values */
1775 /** Should 3Dfx Glide driver catch signals? */
1776 GLboolean CatchSignals
;
1778 /** For debugging/development only */
1780 GLboolean FirstTimeCurrent
;
1782 /** Dither disable via MESA_NO_DITHER env var */
1785 GLboolean Rendering
;
1787 #if defined(MESA_TRACE)
1788 struct _glapi_table
*TraceDispatch
;
1789 trace_context_t
*TraceCtx
;
1791 void *TraceDispatch
;
1795 /* Core tnl module support */
1796 struct gl_tnl_module TnlModule
;
1798 /* Hooks for module contexts. These will eventually live
1799 * in the driver or elsewhere.
1801 void *swrast_context
;
1802 void *swsetup_context
;
1803 void *swtnl_context
;
1805 void *acache_context
;
1810 /* The string names for GL_POINT, GL_LINE_LOOP, etc */
1811 extern const char *_mesa_prim_name
[GL_POLYGON
+4];
1815 extern int MESA_VERBOSE
;
1816 extern int MESA_DEBUG_FLAGS
;
1818 # define MESA_VERBOSE 0
1819 # define MESA_DEBUG_FLAGS 0
1827 VERBOSE_VARRAY
= 0x0001,
1828 VERBOSE_TEXTURE
= 0x0002,
1829 VERBOSE_IMMEDIATE
= 0x0004,
1830 VERBOSE_PIPELINE
= 0x0008,
1831 VERBOSE_DRIVER
= 0x0010,
1832 VERBOSE_STATE
= 0x0020,
1833 VERBOSE_API
= 0x0040,
1834 VERBOSE_DISPLAY_LIST
= 0x0200,
1835 VERBOSE_LIGHTING
= 0x0400
1840 DEBUG_ALWAYS_FLUSH
= 0x1
1845 #define Elements(x) sizeof(x)/sizeof(*(x))
1849 /* Eventually let the driver specify what statechanges require a flush:
1851 #define FLUSH_VERTICES(ctx, newstate) \
1853 if (ctx->Driver.NeedFlush & FLUSH_STORED_VERTICES) \
1854 ctx->Driver.FlushVertices(ctx, FLUSH_STORED_VERTICES); \
1855 ctx->NewState |= newstate; \
1858 #define FLUSH_CURRENT(ctx, newstate) \
1860 if (ctx->Driver.NeedFlush & FLUSH_UPDATE_CURRENT) \
1861 ctx->Driver.FlushVertices(ctx, FLUSH_UPDATE_CURRENT); \
1862 ctx->NewState |= newstate; \
1865 #define ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, retval) \
1867 if (ctx->Driver.CurrentExecPrimitive != PRIM_OUTSIDE_BEGIN_END) { \
1868 _mesa_error( ctx, GL_INVALID_OPERATION, "begin/end" ); \
1873 #define ASSERT_OUTSIDE_BEGIN_END(ctx) \
1875 if (ctx->Driver.CurrentExecPrimitive != PRIM_OUTSIDE_BEGIN_END) { \
1876 _mesa_error( ctx, GL_INVALID_OPERATION, "begin/end" ); \
1881 #define ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx) \
1883 ASSERT_OUTSIDE_BEGIN_END(ctx); \
1884 FLUSH_VERTICES(ctx, 0); \
1887 #define ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH_WITH_RETVAL(ctx, retval) \
1889 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, retval); \
1890 FLUSH_VERTICES(ctx, 0); \
1896 #endif /* TYPES_H */