1 /* $Id: context.c,v 1.169 2002/06/16 01:10:41 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.
39 #include "extensions.h"
48 #include "simple_list.h"
56 #include "math/m_translate.h"
57 #include "math/m_matrix.h"
58 #include "math/m_xform.h"
59 #include "math/mathmod.h"
62 #if defined(MESA_TRACE)
63 #include "Trace/tr_context.h"
64 #include "Trace/tr_wrapper.h"
68 #include "SPARC/sparc.h"
75 #ifndef MESA_DEBUG_FLAGS
76 int MESA_DEBUG_FLAGS
= 0;
81 free_shared_state( GLcontext
*ctx
, struct gl_shared_state
*ss
);
84 /**********************************************************************/
85 /***** OpenGL SI-style interface (new in Mesa 3.5) *****/
86 /**********************************************************************/
88 /* Called by window system/device driver (via gc->exports.destroyCurrent())
89 * when the rendering context is to be destroyed.
92 _mesa_destroyContext(__GLcontext
*gc
)
95 _mesa_free_context_data(gc
);
96 (*gc
->imports
.free
)(gc
, gc
);
101 /* Called by window system/device driver (via gc->exports.loseCurrent())
102 * when the rendering context is made non-current.
105 _mesa_loseCurrent(__GLcontext
*gc
)
107 /* XXX unbind context from thread */
111 /* Called by window system/device driver (via gc->exports.makeCurrent())
112 * when the rendering context is made current.
115 _mesa_makeCurrent(__GLcontext
*gc
)
117 /* XXX bind context to thread */
121 /* Called by window system/device driver - yadda, yadda, yadda.
122 * See above comments.
125 _mesa_shareContext(__GLcontext
*gc
, __GLcontext
*gcShare
)
127 if (gc
&& gcShare
&& gc
->Shared
&& gcShare
->Shared
) {
128 gc
->Shared
->RefCount
--;
129 if (gc
->Shared
->RefCount
== 0) {
130 free_shared_state(gc
, gc
->Shared
);
132 gc
->Shared
= gcShare
->Shared
;
133 gc
->Shared
->RefCount
++;
142 _mesa_copyContext(__GLcontext
*dst
, const __GLcontext
*src
, GLuint mask
)
145 _mesa_copy_context( src
, dst
, mask
);
154 _mesa_forceCurrent(__GLcontext
*gc
)
160 _mesa_notifyResize(__GLcontext
*gc
)
163 GLuint width
, height
;
164 __GLdrawablePrivate
*d
= gc
->imports
.getDrawablePrivate(gc
);
165 if (!d
|| !d
->getDrawableSize
)
167 d
->getDrawableSize( d
, &x
, &y
, &width
, &height
);
168 /* update viewport, resize software buffers, etc. */
173 _mesa_notifyDestroy(__GLcontext
*gc
)
177 /* Called by window system just before swapping buffers.
178 * We have to finish any pending rendering.
181 _mesa_notifySwapBuffers(__GLcontext
*gc
)
183 FLUSH_VERTICES( gc
, 0 );
186 struct __GLdispatchStateRec
*
187 _mesa_dispatchExec(__GLcontext
*gc
)
193 _mesa_beginDispatchOverride(__GLcontext
*gc
)
198 _mesa_endDispatchOverride(__GLcontext
*gc
)
202 /* Setup the exports. The window system will call these functions
203 * when it needs Mesa to do something.
204 * NOTE: Device drivers should override these functions! For example,
205 * the Xlib driver should plug in the XMesa*-style functions into this
206 * structure. The XMesa-style functions should then call the _mesa_*
207 * version of these functions. This is an approximation to OO design
208 * (inheritance and virtual functions).
211 _mesa_init_default_exports(__GLexports
*exports
)
213 exports
->destroyContext
= _mesa_destroyContext
;
214 exports
->loseCurrent
= _mesa_loseCurrent
;
215 exports
->makeCurrent
= _mesa_makeCurrent
;
216 exports
->shareContext
= _mesa_shareContext
;
217 exports
->copyContext
= _mesa_copyContext
;
218 exports
->forceCurrent
= _mesa_forceCurrent
;
219 exports
->notifyResize
= _mesa_notifyResize
;
220 exports
->notifyDestroy
= _mesa_notifyDestroy
;
221 exports
->notifySwapBuffers
= _mesa_notifySwapBuffers
;
222 exports
->dispatchExec
= _mesa_dispatchExec
;
223 exports
->beginDispatchOverride
= _mesa_beginDispatchOverride
;
224 exports
->endDispatchOverride
= _mesa_endDispatchOverride
;
229 /* exported OpenGL SI interface */
231 __glCoreCreateContext(__GLimports
*imports
, __GLcontextModes
*modes
)
235 ctx
= (GLcontext
*) (*imports
->calloc
)(NULL
, 1, sizeof(GLcontext
));
239 ctx
->Driver
.CurrentExecPrimitive
=0; /* XXX why is this here??? */
240 ctx
->imports
= *imports
;
241 _mesa_init_default_exports(&(ctx
->exports
));
243 _mesa_initialize_visual(&ctx
->Visual
,
245 modes
->doubleBufferMode
,
255 modes
->accumGreenBits
,
256 modes
->accumBlueBits
,
257 modes
->accumAlphaBits
,
260 _mesa_initialize_context(ctx
, &ctx
->Visual
, NULL
, imports
);
266 /* exported OpenGL SI interface */
268 __glCoreNopDispatch(void)
272 __gl_dispatch
= __glNopDispatchState
;
275 _glapi_set_dispatch(NULL
);
280 /**********************************************************************/
281 /***** GL Visual allocation/destruction *****/
282 /**********************************************************************/
286 * Allocate a new GLvisual object.
287 * Input: rgbFlag - GL_TRUE=RGB(A) mode, GL_FALSE=Color Index mode
288 * dbFlag - double buffering?
289 * stereoFlag - stereo buffer?
290 * depthBits - requested bits per depth buffer value
291 * Any value in [0, 32] is acceptable but the actual
292 * depth type will be GLushort or GLuint as needed.
293 * stencilBits - requested minimum bits per stencil buffer value
294 * accumBits - requested minimum bits per accum buffer component
295 * indexBits - number of bits per pixel if rgbFlag==GL_FALSE
296 * red/green/blue/alphaBits - number of bits per color component
297 * in frame buffer for RGB(A) mode.
298 * We always use 8 in core Mesa though.
299 * Return: pointer to new GLvisual or NULL if requested parameters can't
303 _mesa_create_visual( GLboolean rgbFlag
,
305 GLboolean stereoFlag
,
314 GLint accumGreenBits
,
316 GLint accumAlphaBits
,
319 GLvisual
*vis
= (GLvisual
*) CALLOC( sizeof(GLvisual
) );
321 if (!_mesa_initialize_visual(vis
, rgbFlag
, dbFlag
, stereoFlag
,
322 redBits
, greenBits
, blueBits
, alphaBits
,
323 indexBits
, depthBits
, stencilBits
,
324 accumRedBits
, accumGreenBits
,
325 accumBlueBits
, accumAlphaBits
,
336 * Initialize the fields of the given GLvisual.
337 * Input: see _mesa_create_visual() above.
338 * Return: GL_TRUE = success
339 * GL_FALSE = failure.
342 _mesa_initialize_visual( GLvisual
*vis
,
345 GLboolean stereoFlag
,
354 GLint accumGreenBits
,
356 GLint accumAlphaBits
,
363 /* This is to catch bad values from device drivers not updated for
364 * Mesa 3.3. Some device drivers just passed 1. That's a REALLY
365 * bad value now (a 1-bit depth buffer!?!).
367 assert(depthBits
== 0 || depthBits
> 1);
369 if (depthBits
< 0 || depthBits
> 32) {
372 if (stencilBits
< 0 || stencilBits
> (GLint
) (8 * sizeof(GLstencil
))) {
375 if (accumRedBits
< 0 || accumRedBits
> (GLint
) (8 * sizeof(GLaccum
))) {
378 if (accumGreenBits
< 0 || accumGreenBits
> (GLint
) (8 * sizeof(GLaccum
))) {
381 if (accumBlueBits
< 0 || accumBlueBits
> (GLint
) (8 * sizeof(GLaccum
))) {
384 if (accumAlphaBits
< 0 || accumAlphaBits
> (GLint
) (8 * sizeof(GLaccum
))) {
388 vis
->rgbMode
= rgbFlag
;
389 vis
->doubleBufferMode
= dbFlag
;
390 vis
->stereoMode
= stereoFlag
;
391 vis
->redBits
= redBits
;
392 vis
->greenBits
= greenBits
;
393 vis
->blueBits
= blueBits
;
394 vis
->alphaBits
= alphaBits
;
396 vis
->indexBits
= indexBits
;
397 vis
->depthBits
= depthBits
;
398 vis
->accumRedBits
= (accumRedBits
> 0) ? (8 * sizeof(GLaccum
)) : 0;
399 vis
->accumGreenBits
= (accumGreenBits
> 0) ? (8 * sizeof(GLaccum
)) : 0;
400 vis
->accumBlueBits
= (accumBlueBits
> 0) ? (8 * sizeof(GLaccum
)) : 0;
401 vis
->accumAlphaBits
= (accumAlphaBits
> 0) ? (8 * sizeof(GLaccum
)) : 0;
402 vis
->stencilBits
= (stencilBits
> 0) ? (8 * sizeof(GLstencil
)) : 0;
409 _mesa_destroy_visual( GLvisual
*vis
)
415 /**********************************************************************/
416 /***** GL Framebuffer allocation/destruction *****/
417 /**********************************************************************/
421 * Create a new framebuffer. A GLframebuffer is a struct which
422 * encapsulates the depth, stencil and accum buffers and related
424 * Input: visual - a GLvisual pointer (we copy the struct contents)
425 * softwareDepth - create/use a software depth buffer?
426 * softwareStencil - create/use a software stencil buffer?
427 * softwareAccum - create/use a software accum buffer?
428 * softwareAlpha - create/use a software alpha buffer?
429 * Return: pointer to new GLframebuffer struct or NULL if error.
432 _mesa_create_framebuffer( const GLvisual
*visual
,
433 GLboolean softwareDepth
,
434 GLboolean softwareStencil
,
435 GLboolean softwareAccum
,
436 GLboolean softwareAlpha
)
438 GLframebuffer
*buffer
= CALLOC_STRUCT(gl_frame_buffer
);
441 _mesa_initialize_framebuffer(buffer
, visual
,
442 softwareDepth
, softwareStencil
,
443 softwareAccum
, softwareAlpha
);
450 * Initialize a GLframebuffer object.
451 * Input: See _mesa_create_framebuffer() above.
454 _mesa_initialize_framebuffer( GLframebuffer
*buffer
,
455 const GLvisual
*visual
,
456 GLboolean softwareDepth
,
457 GLboolean softwareStencil
,
458 GLboolean softwareAccum
,
459 GLboolean softwareAlpha
)
465 if (softwareDepth
) {
466 assert(visual
->depthBits
> 0);
468 if (softwareStencil
) {
469 assert(visual
->stencilBits
> 0);
472 assert(visual
->rgbMode
);
473 assert(visual
->accumRedBits
> 0);
474 assert(visual
->accumGreenBits
> 0);
475 assert(visual
->accumBlueBits
> 0);
478 assert(visual
->rgbMode
);
479 assert(visual
->alphaBits
> 0);
482 buffer
->Visual
= *visual
;
483 buffer
->UseSoftwareDepthBuffer
= softwareDepth
;
484 buffer
->UseSoftwareStencilBuffer
= softwareStencil
;
485 buffer
->UseSoftwareAccumBuffer
= softwareAccum
;
486 buffer
->UseSoftwareAlphaBuffers
= softwareAlpha
;
491 * Free a framebuffer struct and its buffers.
494 _mesa_destroy_framebuffer( GLframebuffer
*buffer
)
497 _mesa_free_framebuffer_data(buffer
);
504 * Free the data hanging off of <buffer>, but not <buffer> itself.
507 _mesa_free_framebuffer_data( GLframebuffer
*buffer
)
512 if (buffer
->DepthBuffer
) {
513 MESA_PBUFFER_FREE( buffer
->DepthBuffer
);
514 buffer
->DepthBuffer
= NULL
;
517 MESA_PBUFFER_FREE( buffer
->Accum
);
518 buffer
->Accum
= NULL
;
520 if (buffer
->Stencil
) {
521 MESA_PBUFFER_FREE( buffer
->Stencil
);
522 buffer
->Stencil
= NULL
;
524 if (buffer
->FrontLeftAlpha
) {
525 MESA_PBUFFER_FREE( buffer
->FrontLeftAlpha
);
526 buffer
->FrontLeftAlpha
= NULL
;
528 if (buffer
->BackLeftAlpha
) {
529 MESA_PBUFFER_FREE( buffer
->BackLeftAlpha
);
530 buffer
->BackLeftAlpha
= NULL
;
532 if (buffer
->FrontRightAlpha
) {
533 MESA_PBUFFER_FREE( buffer
->FrontRightAlpha
);
534 buffer
->FrontRightAlpha
= NULL
;
536 if (buffer
->BackRightAlpha
) {
537 MESA_PBUFFER_FREE( buffer
->BackRightAlpha
);
538 buffer
->BackRightAlpha
= NULL
;
544 /**********************************************************************/
545 /***** Context allocation, initialization, destroying *****/
546 /**********************************************************************/
549 _glthread_DECLARE_STATIC_MUTEX(OneTimeLock
);
553 * This function just calls all the various one-time-init functions in Mesa.
556 one_time_init( GLcontext
*ctx
)
558 static GLboolean alreadyCalled
= GL_FALSE
;
559 _glthread_LOCK_MUTEX(OneTimeLock
);
560 if (!alreadyCalled
) {
561 /* do some implementation tests */
562 assert( sizeof(GLbyte
) == 1 );
563 assert( sizeof(GLshort
) >= 2 );
564 assert( sizeof(GLint
) >= 4 );
565 assert( sizeof(GLubyte
) == 1 );
566 assert( sizeof(GLushort
) >= 2 );
567 assert( sizeof(GLuint
) >= 4 );
575 _mesa_init_sparc_glapi_relocs();
577 if (ctx
->imports
.getenv(ctx
, "MESA_DEBUG")) {
578 _glapi_noop_enable_warnings(GL_TRUE
);
581 _glapi_noop_enable_warnings(GL_FALSE
);
584 #if defined(DEBUG) && defined(__DATE__) && defined(__TIME__)
585 fprintf(stderr
, "Mesa DEBUG build %s %s\n", __DATE__
, __TIME__
);
588 alreadyCalled
= GL_TRUE
;
590 _glthread_UNLOCK_MUTEX(OneTimeLock
);
595 init_matrix_stack( struct matrix_stack
*stack
,
596 GLuint maxDepth
, GLuint dirtyFlag
)
601 stack
->MaxDepth
= maxDepth
;
602 stack
->DirtyFlag
= dirtyFlag
;
604 stack
->Stack
= (GLmatrix
*) CALLOC(maxDepth
* sizeof(GLmatrix
));
605 for (i
= 0; i
< maxDepth
; i
++) {
606 _math_matrix_ctr(&stack
->Stack
[i
]);
607 _math_matrix_alloc_inv(&stack
->Stack
[i
]);
609 stack
->Top
= stack
->Stack
;
614 free_matrix_stack( struct matrix_stack
*stack
)
617 for (i
= 0; i
< stack
->MaxDepth
; i
++) {
618 _math_matrix_dtr(&stack
->Stack
[i
]);
621 stack
->Stack
= stack
->Top
= NULL
;
626 * Allocate and initialize a shared context state structure.
628 static struct gl_shared_state
*
629 alloc_shared_state( void )
631 struct gl_shared_state
*ss
;
632 GLboolean outOfMemory
;
634 ss
= CALLOC_STRUCT(gl_shared_state
);
638 _glthread_INIT_MUTEX(ss
->Mutex
);
640 ss
->DisplayList
= _mesa_NewHashTable();
641 ss
->TexObjects
= _mesa_NewHashTable();
642 ss
->VertexPrograms
= _mesa_NewHashTable();
644 /* Default Texture objects */
645 outOfMemory
= GL_FALSE
;
647 ss
->Default1D
= _mesa_alloc_texture_object(ss
, 0, GL_TEXTURE_1D
);
648 if (!ss
->Default1D
) {
649 outOfMemory
= GL_TRUE
;
652 ss
->Default2D
= _mesa_alloc_texture_object(ss
, 0, GL_TEXTURE_2D
);
653 if (!ss
->Default2D
) {
654 outOfMemory
= GL_TRUE
;
657 ss
->Default3D
= _mesa_alloc_texture_object(ss
, 0, GL_TEXTURE_3D
);
658 if (!ss
->Default3D
) {
659 outOfMemory
= GL_TRUE
;
662 ss
->DefaultCubeMap
= _mesa_alloc_texture_object(ss
, 0,
663 GL_TEXTURE_CUBE_MAP_ARB
);
664 if (!ss
->DefaultCubeMap
) {
665 outOfMemory
= GL_TRUE
;
668 ss
->DefaultRect
= _mesa_alloc_texture_object(ss
, 0,
669 GL_TEXTURE_RECTANGLE_NV
);
670 if (!ss
->DefaultRect
) {
671 outOfMemory
= GL_TRUE
;
674 if (!ss
->DisplayList
|| !ss
->TexObjects
|| !ss
->VertexPrograms
676 /* Ran out of memory at some point. Free everything and return NULL */
678 _mesa_DeleteHashTable(ss
->DisplayList
);
680 _mesa_DeleteHashTable(ss
->TexObjects
);
681 if (ss
->VertexPrograms
)
682 _mesa_DeleteHashTable(ss
->VertexPrograms
);
684 _mesa_free_texture_object(ss
, ss
->Default1D
);
686 _mesa_free_texture_object(ss
, ss
->Default2D
);
688 _mesa_free_texture_object(ss
, ss
->Default3D
);
689 if (ss
->DefaultCubeMap
)
690 _mesa_free_texture_object(ss
, ss
->DefaultCubeMap
);
692 _mesa_free_texture_object(ss
, ss
->DefaultRect
);
703 * Deallocate a shared state context and all children structures.
706 free_shared_state( GLcontext
*ctx
, struct gl_shared_state
*ss
)
708 /* Free display lists */
710 GLuint list
= _mesa_HashFirstEntry(ss
->DisplayList
);
712 _mesa_destroy_list(ctx
, list
);
718 _mesa_DeleteHashTable(ss
->DisplayList
);
720 /* Free texture objects */
721 while (ss
->TexObjectList
) {
722 if (ctx
->Driver
.DeleteTexture
)
723 (*ctx
->Driver
.DeleteTexture
)( ctx
, ss
->TexObjectList
);
724 /* this function removes from linked list too! */
725 _mesa_free_texture_object(ss
, ss
->TexObjectList
);
727 _mesa_DeleteHashTable(ss
->TexObjects
);
729 /* Free vertex programs */
731 GLuint prog
= _mesa_HashFirstEntry(ss
->VertexPrograms
);
733 _mesa_delete_program(ctx
, prog
);
739 _mesa_DeleteHashTable(ss
->VertexPrograms
);
747 * Initialize the nth light. Note that the defaults for light 0 are
748 * different than the other lights.
751 init_light( struct gl_light
*l
, GLuint n
)
753 make_empty_list( l
);
755 ASSIGN_4V( l
->Ambient
, 0.0, 0.0, 0.0, 1.0 );
757 ASSIGN_4V( l
->Diffuse
, 1.0, 1.0, 1.0, 1.0 );
758 ASSIGN_4V( l
->Specular
, 1.0, 1.0, 1.0, 1.0 );
761 ASSIGN_4V( l
->Diffuse
, 0.0, 0.0, 0.0, 1.0 );
762 ASSIGN_4V( l
->Specular
, 0.0, 0.0, 0.0, 1.0 );
764 ASSIGN_4V( l
->EyePosition
, 0.0, 0.0, 1.0, 0.0 );
765 ASSIGN_3V( l
->EyeDirection
, 0.0, 0.0, -1.0 );
766 l
->SpotExponent
= 0.0;
767 _mesa_invalidate_spot_exp_table( l
);
768 l
->SpotCutoff
= 180.0;
769 l
->_CosCutoff
= 0.0; /* KW: -ve values not admitted */
770 l
->ConstantAttenuation
= 1.0;
771 l
->LinearAttenuation
= 0.0;
772 l
->QuadraticAttenuation
= 0.0;
773 l
->Enabled
= GL_FALSE
;
779 init_lightmodel( struct gl_lightmodel
*lm
)
781 ASSIGN_4V( lm
->Ambient
, 0.2F
, 0.2F
, 0.2F
, 1.0F
);
782 lm
->LocalViewer
= GL_FALSE
;
783 lm
->TwoSide
= GL_FALSE
;
784 lm
->ColorControl
= GL_SINGLE_COLOR
;
789 init_material( struct gl_material
*m
)
791 ASSIGN_4V( m
->Ambient
, 0.2F
, 0.2F
, 0.2F
, 1.0F
);
792 ASSIGN_4V( m
->Diffuse
, 0.8F
, 0.8F
, 0.8F
, 1.0F
);
793 ASSIGN_4V( m
->Specular
, 0.0F
, 0.0F
, 0.0F
, 1.0F
);
794 ASSIGN_4V( m
->Emission
, 0.0F
, 0.0F
, 0.0F
, 1.0F
);
798 m
->SpecularIndex
= 1;
804 init_texture_unit( GLcontext
*ctx
, GLuint unit
)
806 struct gl_texture_unit
*texUnit
= &ctx
->Texture
.Unit
[unit
];
808 texUnit
->EnvMode
= GL_MODULATE
;
809 texUnit
->CombineModeRGB
= GL_MODULATE
;
810 texUnit
->CombineModeA
= GL_MODULATE
;
811 texUnit
->CombineSourceRGB
[0] = GL_TEXTURE
;
812 texUnit
->CombineSourceRGB
[1] = GL_PREVIOUS_EXT
;
813 texUnit
->CombineSourceRGB
[2] = GL_CONSTANT_EXT
;
814 texUnit
->CombineSourceA
[0] = GL_TEXTURE
;
815 texUnit
->CombineSourceA
[1] = GL_PREVIOUS_EXT
;
816 texUnit
->CombineSourceA
[2] = GL_CONSTANT_EXT
;
817 texUnit
->CombineOperandRGB
[0] = GL_SRC_COLOR
;
818 texUnit
->CombineOperandRGB
[1] = GL_SRC_COLOR
;
819 texUnit
->CombineOperandRGB
[2] = GL_SRC_ALPHA
;
820 texUnit
->CombineOperandA
[0] = GL_SRC_ALPHA
;
821 texUnit
->CombineOperandA
[1] = GL_SRC_ALPHA
;
822 texUnit
->CombineOperandA
[2] = GL_SRC_ALPHA
;
823 texUnit
->CombineScaleShiftRGB
= 0;
824 texUnit
->CombineScaleShiftA
= 0;
826 ASSIGN_4V( texUnit
->EnvColor
, 0.0, 0.0, 0.0, 0.0 );
827 texUnit
->TexGenEnabled
= 0;
828 texUnit
->GenModeS
= GL_EYE_LINEAR
;
829 texUnit
->GenModeT
= GL_EYE_LINEAR
;
830 texUnit
->GenModeR
= GL_EYE_LINEAR
;
831 texUnit
->GenModeQ
= GL_EYE_LINEAR
;
832 texUnit
->_GenBitS
= TEXGEN_EYE_LINEAR
;
833 texUnit
->_GenBitT
= TEXGEN_EYE_LINEAR
;
834 texUnit
->_GenBitR
= TEXGEN_EYE_LINEAR
;
835 texUnit
->_GenBitQ
= TEXGEN_EYE_LINEAR
;
837 /* Yes, these plane coefficients are correct! */
838 ASSIGN_4V( texUnit
->ObjectPlaneS
, 1.0, 0.0, 0.0, 0.0 );
839 ASSIGN_4V( texUnit
->ObjectPlaneT
, 0.0, 1.0, 0.0, 0.0 );
840 ASSIGN_4V( texUnit
->ObjectPlaneR
, 0.0, 0.0, 0.0, 0.0 );
841 ASSIGN_4V( texUnit
->ObjectPlaneQ
, 0.0, 0.0, 0.0, 0.0 );
842 ASSIGN_4V( texUnit
->EyePlaneS
, 1.0, 0.0, 0.0, 0.0 );
843 ASSIGN_4V( texUnit
->EyePlaneT
, 0.0, 1.0, 0.0, 0.0 );
844 ASSIGN_4V( texUnit
->EyePlaneR
, 0.0, 0.0, 0.0, 0.0 );
845 ASSIGN_4V( texUnit
->EyePlaneQ
, 0.0, 0.0, 0.0, 0.0 );
847 texUnit
->Current1D
= ctx
->Shared
->Default1D
;
848 texUnit
->Current2D
= ctx
->Shared
->Default2D
;
849 texUnit
->Current3D
= ctx
->Shared
->Default3D
;
850 texUnit
->CurrentCubeMap
= ctx
->Shared
->DefaultCubeMap
;
851 texUnit
->CurrentRect
= ctx
->Shared
->DefaultRect
;
857 /* Initialize a 1-D evaluator map */
859 init_1d_map( struct gl_1d_map
*map
, int n
, const float *initial
)
864 map
->Points
= (GLfloat
*) MALLOC(n
* sizeof(GLfloat
));
868 map
->Points
[i
] = initial
[i
];
873 /* Initialize a 2-D evaluator map */
875 init_2d_map( struct gl_2d_map
*map
, int n
, const float *initial
)
883 map
->Points
= (GLfloat
*) MALLOC(n
* sizeof(GLfloat
));
887 map
->Points
[i
] = initial
[i
];
893 * Initialize the attribute groups in a GLcontext.
896 init_attrib_groups( GLcontext
*ctx
)
902 assert(MAX_TEXTURE_LEVELS
>= MAX_3D_TEXTURE_LEVELS
);
903 assert(MAX_TEXTURE_LEVELS
>= MAX_CUBE_TEXTURE_LEVELS
);
905 /* Constants, may be overriden by device drivers */
906 ctx
->Const
.MaxTextureLevels
= MAX_TEXTURE_LEVELS
;
907 ctx
->Const
.Max3DTextureLevels
= MAX_3D_TEXTURE_LEVELS
;
908 ctx
->Const
.MaxCubeTextureLevels
= MAX_CUBE_TEXTURE_LEVELS
;
909 ctx
->Const
.MaxTextureRectSize
= MAX_TEXTURE_RECT_SIZE
;
910 ctx
->Const
.MaxTextureUnits
= MAX_TEXTURE_UNITS
;
911 ctx
->Const
.MaxTextureMaxAnisotropy
= MAX_TEXTURE_MAX_ANISOTROPY
;
912 ctx
->Const
.MaxTextureLodBias
= MAX_TEXTURE_LOD_BIAS
;
913 ctx
->Const
.MaxArrayLockSize
= MAX_ARRAY_LOCK_SIZE
;
914 ctx
->Const
.SubPixelBits
= SUB_PIXEL_BITS
;
915 ctx
->Const
.MinPointSize
= MIN_POINT_SIZE
;
916 ctx
->Const
.MaxPointSize
= MAX_POINT_SIZE
;
917 ctx
->Const
.MinPointSizeAA
= MIN_POINT_SIZE
;
918 ctx
->Const
.MaxPointSizeAA
= MAX_POINT_SIZE
;
919 ctx
->Const
.PointSizeGranularity
= (GLfloat
) POINT_SIZE_GRANULARITY
;
920 ctx
->Const
.MinLineWidth
= MIN_LINE_WIDTH
;
921 ctx
->Const
.MaxLineWidth
= MAX_LINE_WIDTH
;
922 ctx
->Const
.MinLineWidthAA
= MIN_LINE_WIDTH
;
923 ctx
->Const
.MaxLineWidthAA
= MAX_LINE_WIDTH
;
924 ctx
->Const
.LineWidthGranularity
= (GLfloat
) LINE_WIDTH_GRANULARITY
;
925 ctx
->Const
.NumAuxBuffers
= NUM_AUX_BUFFERS
;
926 ctx
->Const
.MaxColorTableSize
= MAX_COLOR_TABLE_SIZE
;
927 ctx
->Const
.MaxConvolutionWidth
= MAX_CONVOLUTION_WIDTH
;
928 ctx
->Const
.MaxConvolutionHeight
= MAX_CONVOLUTION_HEIGHT
;
929 ctx
->Const
.NumCompressedTextureFormats
= 0;
930 ctx
->Const
.MaxClipPlanes
= MAX_CLIP_PLANES
;
931 ctx
->Const
.MaxLights
= MAX_LIGHTS
;
933 /* Initialize matrix stacks */
934 init_matrix_stack(&ctx
->ModelviewMatrixStack
, MAX_MODELVIEW_STACK_DEPTH
,
936 init_matrix_stack(&ctx
->ProjectionMatrixStack
, MAX_PROJECTION_STACK_DEPTH
,
938 init_matrix_stack(&ctx
->ColorMatrixStack
, MAX_COLOR_STACK_DEPTH
,
940 for (i
= 0; i
< MAX_TEXTURE_UNITS
; i
++)
941 init_matrix_stack(&ctx
->TextureMatrixStack
[i
], MAX_TEXTURE_STACK_DEPTH
,
942 _NEW_TEXTURE_MATRIX
);
943 for (i
= 0; i
< MAX_PROGRAM_MATRICES
; i
++)
944 init_matrix_stack(&ctx
->ProgramMatrixStack
[i
], MAX_PROGRAM_STACK_DEPTH
,
946 ctx
->CurrentStack
= &ctx
->ModelviewMatrixStack
;
948 /* Init combined Modelview*Projection matrix */
949 _math_matrix_ctr( &ctx
->_ModelProjectMatrix
);
951 /* Accumulate buffer group */
952 ASSIGN_4V( ctx
->Accum
.ClearColor
, 0.0, 0.0, 0.0, 0.0 );
954 /* Color buffer group */
955 ctx
->Color
.IndexMask
= 0xffffffff;
956 ctx
->Color
.ColorMask
[0] = 0xff;
957 ctx
->Color
.ColorMask
[1] = 0xff;
958 ctx
->Color
.ColorMask
[2] = 0xff;
959 ctx
->Color
.ColorMask
[3] = 0xff;
960 ctx
->Color
.ClearIndex
= 0;
961 ASSIGN_4V( ctx
->Color
.ClearColor
, 0, 0, 0, 0 );
962 ctx
->Color
.DrawBuffer
= GL_FRONT
;
963 ctx
->Color
.AlphaEnabled
= GL_FALSE
;
964 ctx
->Color
.AlphaFunc
= GL_ALWAYS
;
965 ctx
->Color
.AlphaRef
= 0;
966 ctx
->Color
.BlendEnabled
= GL_FALSE
;
967 ctx
->Color
.BlendSrcRGB
= GL_ONE
;
968 ctx
->Color
.BlendDstRGB
= GL_ZERO
;
969 ctx
->Color
.BlendSrcA
= GL_ONE
;
970 ctx
->Color
.BlendDstA
= GL_ZERO
;
971 ctx
->Color
.BlendEquation
= GL_FUNC_ADD_EXT
;
972 ASSIGN_4V( ctx
->Color
.BlendColor
, 0.0, 0.0, 0.0, 0.0 );
973 ctx
->Color
.IndexLogicOpEnabled
= GL_FALSE
;
974 ctx
->Color
.ColorLogicOpEnabled
= GL_FALSE
;
975 ctx
->Color
.LogicOp
= GL_COPY
;
976 ctx
->Color
.DitherFlag
= GL_TRUE
;
977 ctx
->Color
.MultiDrawBuffer
= GL_FALSE
;
980 ASSIGN_4V( ctx
->Current
.Attrib
[VERT_ATTRIB_WEIGHT
], 0.0, 0.0, 0.0, 0.0 );
981 ASSIGN_4V( ctx
->Current
.Attrib
[VERT_ATTRIB_NORMAL
], 0.0, 0.0, 1.0, 0.0 );
982 ASSIGN_4V( ctx
->Current
.Attrib
[VERT_ATTRIB_COLOR0
], 1.0, 1.0, 1.0, 1.0 );
983 ASSIGN_4V( ctx
->Current
.Attrib
[VERT_ATTRIB_COLOR1
], 0.0, 0.0, 0.0, 0.0 );
984 ASSIGN_4V( ctx
->Current
.Attrib
[VERT_ATTRIB_FOG
], 0.0, 0.0, 0.0, 0.0 );
985 for (i
= 0; i
< MAX_TEXTURE_UNITS
; i
++)
986 ASSIGN_4V( ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ i
], 0.0, 0.0, 0.0, 1.0 );
987 ctx
->Current
.Index
= 1;
988 ctx
->Current
.EdgeFlag
= GL_TRUE
;
990 ASSIGN_4V( ctx
->Current
.RasterPos
, 0.0, 0.0, 0.0, 1.0 );
991 ctx
->Current
.RasterDistance
= 0.0;
992 ASSIGN_4V( ctx
->Current
.RasterColor
, 1.0, 1.0, 1.0, 1.0 );
993 ctx
->Current
.RasterIndex
= 1;
994 for (i
=0; i
<MAX_TEXTURE_UNITS
; i
++)
995 ASSIGN_4V( ctx
->Current
.RasterTexCoords
[i
], 0.0, 0.0, 0.0, 1.0 );
996 ctx
->Current
.RasterPosValid
= GL_TRUE
;
999 /* Depth buffer group */
1000 ctx
->Depth
.Test
= GL_FALSE
;
1001 ctx
->Depth
.Clear
= 1.0;
1002 ctx
->Depth
.Func
= GL_LESS
;
1003 ctx
->Depth
.Mask
= GL_TRUE
;
1004 ctx
->Depth
.OcclusionTest
= GL_FALSE
;
1006 /* Evaluators group */
1007 ctx
->Eval
.Map1Color4
= GL_FALSE
;
1008 ctx
->Eval
.Map1Index
= GL_FALSE
;
1009 ctx
->Eval
.Map1Normal
= GL_FALSE
;
1010 ctx
->Eval
.Map1TextureCoord1
= GL_FALSE
;
1011 ctx
->Eval
.Map1TextureCoord2
= GL_FALSE
;
1012 ctx
->Eval
.Map1TextureCoord3
= GL_FALSE
;
1013 ctx
->Eval
.Map1TextureCoord4
= GL_FALSE
;
1014 ctx
->Eval
.Map1Vertex3
= GL_FALSE
;
1015 ctx
->Eval
.Map1Vertex4
= GL_FALSE
;
1016 MEMSET(ctx
->Eval
.Map1Attrib
, 0, sizeof(ctx
->Eval
.Map1Attrib
));
1017 ctx
->Eval
.Map2Color4
= GL_FALSE
;
1018 ctx
->Eval
.Map2Index
= GL_FALSE
;
1019 ctx
->Eval
.Map2Normal
= GL_FALSE
;
1020 ctx
->Eval
.Map2TextureCoord1
= GL_FALSE
;
1021 ctx
->Eval
.Map2TextureCoord2
= GL_FALSE
;
1022 ctx
->Eval
.Map2TextureCoord3
= GL_FALSE
;
1023 ctx
->Eval
.Map2TextureCoord4
= GL_FALSE
;
1024 ctx
->Eval
.Map2Vertex3
= GL_FALSE
;
1025 ctx
->Eval
.Map2Vertex4
= GL_FALSE
;
1026 MEMSET(ctx
->Eval
.Map2Attrib
, 0, sizeof(ctx
->Eval
.Map2Attrib
));
1027 ctx
->Eval
.AutoNormal
= GL_FALSE
;
1028 ctx
->Eval
.MapGrid1un
= 1;
1029 ctx
->Eval
.MapGrid1u1
= 0.0;
1030 ctx
->Eval
.MapGrid1u2
= 1.0;
1031 ctx
->Eval
.MapGrid2un
= 1;
1032 ctx
->Eval
.MapGrid2vn
= 1;
1033 ctx
->Eval
.MapGrid2u1
= 0.0;
1034 ctx
->Eval
.MapGrid2u2
= 1.0;
1035 ctx
->Eval
.MapGrid2v1
= 0.0;
1036 ctx
->Eval
.MapGrid2v2
= 1.0;
1038 /* Evaluator data */
1040 static GLfloat vertex
[4] = { 0.0, 0.0, 0.0, 1.0 };
1041 static GLfloat normal
[3] = { 0.0, 0.0, 1.0 };
1042 static GLfloat index
[1] = { 1.0 };
1043 static GLfloat color
[4] = { 1.0, 1.0, 1.0, 1.0 };
1044 static GLfloat texcoord
[4] = { 0.0, 0.0, 0.0, 1.0 };
1045 static GLfloat attrib
[4] = { 0.0, 0.0, 0.0, 1.0 };
1047 init_1d_map( &ctx
->EvalMap
.Map1Vertex3
, 3, vertex
);
1048 init_1d_map( &ctx
->EvalMap
.Map1Vertex4
, 4, vertex
);
1049 init_1d_map( &ctx
->EvalMap
.Map1Index
, 1, index
);
1050 init_1d_map( &ctx
->EvalMap
.Map1Color4
, 4, color
);
1051 init_1d_map( &ctx
->EvalMap
.Map1Normal
, 3, normal
);
1052 init_1d_map( &ctx
->EvalMap
.Map1Texture1
, 1, texcoord
);
1053 init_1d_map( &ctx
->EvalMap
.Map1Texture2
, 2, texcoord
);
1054 init_1d_map( &ctx
->EvalMap
.Map1Texture3
, 3, texcoord
);
1055 init_1d_map( &ctx
->EvalMap
.Map1Texture4
, 4, texcoord
);
1056 for (i
= 0; i
< 16; i
++)
1057 init_1d_map( ctx
->EvalMap
.Map1Attrib
+ i
, 4, attrib
);
1059 init_2d_map( &ctx
->EvalMap
.Map2Vertex3
, 3, vertex
);
1060 init_2d_map( &ctx
->EvalMap
.Map2Vertex4
, 4, vertex
);
1061 init_2d_map( &ctx
->EvalMap
.Map2Index
, 1, index
);
1062 init_2d_map( &ctx
->EvalMap
.Map2Color4
, 4, color
);
1063 init_2d_map( &ctx
->EvalMap
.Map2Normal
, 3, normal
);
1064 init_2d_map( &ctx
->EvalMap
.Map2Texture1
, 1, texcoord
);
1065 init_2d_map( &ctx
->EvalMap
.Map2Texture2
, 2, texcoord
);
1066 init_2d_map( &ctx
->EvalMap
.Map2Texture3
, 3, texcoord
);
1067 init_2d_map( &ctx
->EvalMap
.Map2Texture4
, 4, texcoord
);
1068 for (i
= 0; i
< 16; i
++)
1069 init_2d_map( ctx
->EvalMap
.Map2Attrib
+ i
, 4, attrib
);
1073 ctx
->Fog
.Enabled
= GL_FALSE
;
1074 ctx
->Fog
.Mode
= GL_EXP
;
1075 ASSIGN_4V( ctx
->Fog
.Color
, 0.0, 0.0, 0.0, 0.0 );
1076 ctx
->Fog
.Index
= 0.0;
1077 ctx
->Fog
.Density
= 1.0;
1078 ctx
->Fog
.Start
= 0.0;
1080 ctx
->Fog
.ColorSumEnabled
= GL_FALSE
;
1081 ctx
->Fog
.FogCoordinateSource
= GL_FRAGMENT_DEPTH_EXT
;
1084 ctx
->Hint
.PerspectiveCorrection
= GL_DONT_CARE
;
1085 ctx
->Hint
.PointSmooth
= GL_DONT_CARE
;
1086 ctx
->Hint
.LineSmooth
= GL_DONT_CARE
;
1087 ctx
->Hint
.PolygonSmooth
= GL_DONT_CARE
;
1088 ctx
->Hint
.Fog
= GL_DONT_CARE
;
1089 ctx
->Hint
.ClipVolumeClipping
= GL_DONT_CARE
;
1090 ctx
->Hint
.TextureCompression
= GL_DONT_CARE
;
1091 ctx
->Hint
.GenerateMipmap
= GL_DONT_CARE
;
1093 /* Histogram group */
1094 ctx
->Histogram
.Width
= 0;
1095 ctx
->Histogram
.Format
= GL_RGBA
;
1096 ctx
->Histogram
.Sink
= GL_FALSE
;
1097 ctx
->Histogram
.RedSize
= 0;
1098 ctx
->Histogram
.GreenSize
= 0;
1099 ctx
->Histogram
.BlueSize
= 0;
1100 ctx
->Histogram
.AlphaSize
= 0;
1101 ctx
->Histogram
.LuminanceSize
= 0;
1102 for (i
= 0; i
< HISTOGRAM_TABLE_SIZE
; i
++) {
1103 ctx
->Histogram
.Count
[i
][0] = 0;
1104 ctx
->Histogram
.Count
[i
][1] = 0;
1105 ctx
->Histogram
.Count
[i
][2] = 0;
1106 ctx
->Histogram
.Count
[i
][3] = 0;
1110 ctx
->MinMax
.Format
= GL_RGBA
;
1111 ctx
->MinMax
.Sink
= GL_FALSE
;
1112 ctx
->MinMax
.Min
[RCOMP
] = 1000; ctx
->MinMax
.Max
[RCOMP
] = -1000;
1113 ctx
->MinMax
.Min
[GCOMP
] = 1000; ctx
->MinMax
.Max
[GCOMP
] = -1000;
1114 ctx
->MinMax
.Min
[BCOMP
] = 1000; ctx
->MinMax
.Max
[BCOMP
] = -1000;
1115 ctx
->MinMax
.Min
[ACOMP
] = 1000; ctx
->MinMax
.Max
[ACOMP
] = -1000;
1118 _mesa_extensions_ctr( ctx
);
1120 /* Lighting group */
1121 for (i
=0;i
<MAX_LIGHTS
;i
++) {
1122 init_light( &ctx
->Light
.Light
[i
], i
);
1124 make_empty_list( &ctx
->Light
.EnabledList
);
1126 init_lightmodel( &ctx
->Light
.Model
);
1127 init_material( &ctx
->Light
.Material
[0] );
1128 init_material( &ctx
->Light
.Material
[1] );
1129 ctx
->Light
.ShadeModel
= GL_SMOOTH
;
1130 ctx
->Light
.Enabled
= GL_FALSE
;
1131 ctx
->Light
.ColorMaterialFace
= GL_FRONT_AND_BACK
;
1132 ctx
->Light
.ColorMaterialMode
= GL_AMBIENT_AND_DIFFUSE
;
1133 ctx
->Light
.ColorMaterialBitmask
= _mesa_material_bitmask( ctx
,
1135 GL_AMBIENT_AND_DIFFUSE
, ~0, 0 );
1137 ctx
->Light
.ColorMaterialEnabled
= GL_FALSE
;
1139 /* Lighting miscellaneous */
1140 ctx
->_ShineTabList
= MALLOC_STRUCT( gl_shine_tab
);
1141 make_empty_list( ctx
->_ShineTabList
);
1142 for (i
= 0 ; i
< 10 ; i
++) {
1143 struct gl_shine_tab
*s
= MALLOC_STRUCT( gl_shine_tab
);
1146 insert_at_tail( ctx
->_ShineTabList
, s
);
1151 ctx
->Line
.SmoothFlag
= GL_FALSE
;
1152 ctx
->Line
.StippleFlag
= GL_FALSE
;
1153 ctx
->Line
.Width
= 1.0;
1154 ctx
->Line
._Width
= 1.0;
1155 ctx
->Line
.StipplePattern
= 0xffff;
1156 ctx
->Line
.StippleFactor
= 1;
1158 /* Display List group */
1159 ctx
->List
.ListBase
= 0;
1162 ctx
->Multisample
.Enabled
= GL_FALSE
;
1163 ctx
->Multisample
.SampleAlphaToCoverage
= GL_FALSE
;
1164 ctx
->Multisample
.SampleAlphaToOne
= GL_FALSE
;
1165 ctx
->Multisample
.SampleCoverage
= GL_FALSE
;
1166 ctx
->Multisample
.SampleCoverageValue
= 1.0;
1167 ctx
->Multisample
.SampleCoverageInvert
= GL_FALSE
;
1170 ctx
->Pixel
.RedBias
= 0.0;
1171 ctx
->Pixel
.RedScale
= 1.0;
1172 ctx
->Pixel
.GreenBias
= 0.0;
1173 ctx
->Pixel
.GreenScale
= 1.0;
1174 ctx
->Pixel
.BlueBias
= 0.0;
1175 ctx
->Pixel
.BlueScale
= 1.0;
1176 ctx
->Pixel
.AlphaBias
= 0.0;
1177 ctx
->Pixel
.AlphaScale
= 1.0;
1178 ctx
->Pixel
.DepthBias
= 0.0;
1179 ctx
->Pixel
.DepthScale
= 1.0;
1180 ctx
->Pixel
.IndexOffset
= 0;
1181 ctx
->Pixel
.IndexShift
= 0;
1182 ctx
->Pixel
.ZoomX
= 1.0;
1183 ctx
->Pixel
.ZoomY
= 1.0;
1184 ctx
->Pixel
.MapColorFlag
= GL_FALSE
;
1185 ctx
->Pixel
.MapStencilFlag
= GL_FALSE
;
1186 ctx
->Pixel
.MapStoSsize
= 1;
1187 ctx
->Pixel
.MapItoIsize
= 1;
1188 ctx
->Pixel
.MapItoRsize
= 1;
1189 ctx
->Pixel
.MapItoGsize
= 1;
1190 ctx
->Pixel
.MapItoBsize
= 1;
1191 ctx
->Pixel
.MapItoAsize
= 1;
1192 ctx
->Pixel
.MapRtoRsize
= 1;
1193 ctx
->Pixel
.MapGtoGsize
= 1;
1194 ctx
->Pixel
.MapBtoBsize
= 1;
1195 ctx
->Pixel
.MapAtoAsize
= 1;
1196 ctx
->Pixel
.MapStoS
[0] = 0;
1197 ctx
->Pixel
.MapItoI
[0] = 0;
1198 ctx
->Pixel
.MapItoR
[0] = 0.0;
1199 ctx
->Pixel
.MapItoG
[0] = 0.0;
1200 ctx
->Pixel
.MapItoB
[0] = 0.0;
1201 ctx
->Pixel
.MapItoA
[0] = 0.0;
1202 ctx
->Pixel
.MapItoR8
[0] = 0;
1203 ctx
->Pixel
.MapItoG8
[0] = 0;
1204 ctx
->Pixel
.MapItoB8
[0] = 0;
1205 ctx
->Pixel
.MapItoA8
[0] = 0;
1206 ctx
->Pixel
.MapRtoR
[0] = 0.0;
1207 ctx
->Pixel
.MapGtoG
[0] = 0.0;
1208 ctx
->Pixel
.MapBtoB
[0] = 0.0;
1209 ctx
->Pixel
.MapAtoA
[0] = 0.0;
1210 ctx
->Pixel
.HistogramEnabled
= GL_FALSE
;
1211 ctx
->Pixel
.MinMaxEnabled
= GL_FALSE
;
1212 ctx
->Pixel
.PixelTextureEnabled
= GL_FALSE
;
1213 ctx
->Pixel
.FragmentRgbSource
= GL_PIXEL_GROUP_COLOR_SGIS
;
1214 ctx
->Pixel
.FragmentAlphaSource
= GL_PIXEL_GROUP_COLOR_SGIS
;
1215 ASSIGN_4V(ctx
->Pixel
.PostColorMatrixScale
, 1.0, 1.0, 1.0, 1.0);
1216 ASSIGN_4V(ctx
->Pixel
.PostColorMatrixBias
, 0.0, 0.0, 0.0, 0.0);
1217 ASSIGN_4V(ctx
->Pixel
.ColorTableScale
, 1.0, 1.0, 1.0, 1.0);
1218 ASSIGN_4V(ctx
->Pixel
.ColorTableBias
, 0.0, 0.0, 0.0, 0.0);
1219 ASSIGN_4V(ctx
->Pixel
.PCCTscale
, 1.0, 1.0, 1.0, 1.0);
1220 ASSIGN_4V(ctx
->Pixel
.PCCTbias
, 0.0, 0.0, 0.0, 0.0);
1221 ASSIGN_4V(ctx
->Pixel
.PCMCTscale
, 1.0, 1.0, 1.0, 1.0);
1222 ASSIGN_4V(ctx
->Pixel
.PCMCTbias
, 0.0, 0.0, 0.0, 0.0);
1223 ctx
->Pixel
.ColorTableEnabled
= GL_FALSE
;
1224 ctx
->Pixel
.PostConvolutionColorTableEnabled
= GL_FALSE
;
1225 ctx
->Pixel
.PostColorMatrixColorTableEnabled
= GL_FALSE
;
1226 ctx
->Pixel
.Convolution1DEnabled
= GL_FALSE
;
1227 ctx
->Pixel
.Convolution2DEnabled
= GL_FALSE
;
1228 ctx
->Pixel
.Separable2DEnabled
= GL_FALSE
;
1229 for (i
= 0; i
< 3; i
++) {
1230 ASSIGN_4V(ctx
->Pixel
.ConvolutionBorderColor
[i
], 0.0, 0.0, 0.0, 0.0);
1231 ctx
->Pixel
.ConvolutionBorderMode
[i
] = GL_REDUCE
;
1232 ASSIGN_4V(ctx
->Pixel
.ConvolutionFilterScale
[i
], 1.0, 1.0, 1.0, 1.0);
1233 ASSIGN_4V(ctx
->Pixel
.ConvolutionFilterBias
[i
], 0.0, 0.0, 0.0, 0.0);
1235 for (i
= 0; i
< MAX_CONVOLUTION_WIDTH
* MAX_CONVOLUTION_WIDTH
* 4; i
++) {
1236 ctx
->Convolution1D
.Filter
[i
] = 0.0;
1237 ctx
->Convolution2D
.Filter
[i
] = 0.0;
1238 ctx
->Separable2D
.Filter
[i
] = 0.0;
1240 ASSIGN_4V(ctx
->Pixel
.PostConvolutionScale
, 1.0, 1.0, 1.0, 1.0);
1241 ASSIGN_4V(ctx
->Pixel
.PostConvolutionBias
, 0.0, 0.0, 0.0, 0.0);
1244 ctx
->Point
.SmoothFlag
= GL_FALSE
;
1245 ctx
->Point
.Size
= 1.0;
1246 ctx
->Point
._Size
= 1.0;
1247 ctx
->Point
.Params
[0] = 1.0;
1248 ctx
->Point
.Params
[1] = 0.0;
1249 ctx
->Point
.Params
[2] = 0.0;
1250 ctx
->Point
._Attenuated
= GL_FALSE
;
1251 ctx
->Point
.MinSize
= 0.0;
1252 ctx
->Point
.MaxSize
= ctx
->Const
.MaxPointSize
;
1253 ctx
->Point
.Threshold
= 1.0;
1254 ctx
->Point
.PointSprite
= GL_FALSE
; /* GL_NV_point_sprite */
1255 ctx
->Point
.SpriteRMode
= GL_ZERO
; /* GL_NV_point_sprite */
1256 for (i
= 0; i
< MAX_TEXTURE_UNITS
; i
++) {
1257 ctx
->Point
.CoordReplace
[i
] = GL_FALSE
; /* GL_NV_point_sprite */
1261 ctx
->Polygon
.CullFlag
= GL_FALSE
;
1262 ctx
->Polygon
.CullFaceMode
= GL_BACK
;
1263 ctx
->Polygon
.FrontFace
= GL_CCW
;
1264 ctx
->Polygon
._FrontBit
= 0;
1265 ctx
->Polygon
.FrontMode
= GL_FILL
;
1266 ctx
->Polygon
.BackMode
= GL_FILL
;
1267 ctx
->Polygon
.SmoothFlag
= GL_FALSE
;
1268 ctx
->Polygon
.StippleFlag
= GL_FALSE
;
1269 ctx
->Polygon
.OffsetFactor
= 0.0F
;
1270 ctx
->Polygon
.OffsetUnits
= 0.0F
;
1271 ctx
->Polygon
.OffsetMRD
= 0.0F
;
1272 ctx
->Polygon
.OffsetPoint
= GL_FALSE
;
1273 ctx
->Polygon
.OffsetLine
= GL_FALSE
;
1274 ctx
->Polygon
.OffsetFill
= GL_FALSE
;
1276 /* Polygon Stipple group */
1277 MEMSET( ctx
->PolygonStipple
, 0xff, 32*sizeof(GLuint
) );
1280 ctx
->Scissor
.Enabled
= GL_FALSE
;
1283 ctx
->Scissor
.Width
= 0;
1284 ctx
->Scissor
.Height
= 0;
1287 ctx
->Stencil
.Enabled
= GL_FALSE
;
1288 ctx
->Stencil
.Function
= GL_ALWAYS
;
1289 ctx
->Stencil
.FailFunc
= GL_KEEP
;
1290 ctx
->Stencil
.ZPassFunc
= GL_KEEP
;
1291 ctx
->Stencil
.ZFailFunc
= GL_KEEP
;
1292 ctx
->Stencil
.Ref
= 0;
1293 ctx
->Stencil
.ValueMask
= STENCIL_MAX
;
1294 ctx
->Stencil
.Clear
= 0;
1295 ctx
->Stencil
.WriteMask
= STENCIL_MAX
;
1298 ctx
->Texture
.CurrentUnit
= 0; /* multitexture */
1299 ctx
->Texture
._ReallyEnabled
= 0; /* XXX obsolete */
1300 ctx
->Texture
._EnabledUnits
= 0;
1301 for (i
=0; i
<MAX_TEXTURE_UNITS
; i
++)
1302 init_texture_unit( ctx
, i
);
1303 ctx
->Texture
.SharedPalette
= GL_FALSE
;
1304 _mesa_init_colortable(&ctx
->Texture
.Palette
);
1306 /* Transformation group */
1307 ctx
->Transform
.MatrixMode
= GL_MODELVIEW
;
1308 ctx
->Transform
.Normalize
= GL_FALSE
;
1309 ctx
->Transform
.RescaleNormals
= GL_FALSE
;
1310 ctx
->Transform
.RasterPositionUnclipped
= GL_FALSE
;
1311 for (i
=0;i
<MAX_CLIP_PLANES
;i
++) {
1312 ASSIGN_4V( ctx
->Transform
.EyeUserPlane
[i
], 0.0, 0.0, 0.0, 0.0 );
1314 ctx
->Transform
.ClipPlanesEnabled
= 0;
1316 /* Viewport group */
1317 ctx
->Viewport
.X
= 0;
1318 ctx
->Viewport
.Y
= 0;
1319 ctx
->Viewport
.Width
= 0;
1320 ctx
->Viewport
.Height
= 0;
1321 ctx
->Viewport
.Near
= 0.0;
1322 ctx
->Viewport
.Far
= 1.0;
1323 _math_matrix_ctr(&ctx
->Viewport
._WindowMap
);
1327 ctx
->Viewport
._WindowMap
.m
[Sz
] = 0.5F
* ctx
->DepthMaxF
;
1328 ctx
->Viewport
._WindowMap
.m
[Tz
] = 0.5F
* ctx
->DepthMaxF
;
1332 ctx
->Viewport
._WindowMap
.flags
= MAT_FLAG_GENERAL_SCALE
|MAT_FLAG_TRANSLATION
;
1333 ctx
->Viewport
._WindowMap
.type
= MATRIX_3D_NO_ROT
;
1336 ctx
->Array
.Vertex
.Size
= 4;
1337 ctx
->Array
.Vertex
.Type
= GL_FLOAT
;
1338 ctx
->Array
.Vertex
.Stride
= 0;
1339 ctx
->Array
.Vertex
.StrideB
= 0;
1340 ctx
->Array
.Vertex
.Ptr
= NULL
;
1341 ctx
->Array
.Vertex
.Enabled
= GL_FALSE
;
1342 ctx
->Array
.Vertex
.Flags
= CA_CLIENT_DATA
;
1343 ctx
->Array
.Normal
.Type
= GL_FLOAT
;
1344 ctx
->Array
.Normal
.Stride
= 0;
1345 ctx
->Array
.Normal
.StrideB
= 0;
1346 ctx
->Array
.Normal
.Ptr
= NULL
;
1347 ctx
->Array
.Normal
.Enabled
= GL_FALSE
;
1348 ctx
->Array
.Normal
.Flags
= CA_CLIENT_DATA
;
1349 ctx
->Array
.Color
.Size
= 4;
1350 ctx
->Array
.Color
.Type
= GL_FLOAT
;
1351 ctx
->Array
.Color
.Stride
= 0;
1352 ctx
->Array
.Color
.StrideB
= 0;
1353 ctx
->Array
.Color
.Ptr
= NULL
;
1354 ctx
->Array
.Color
.Enabled
= GL_FALSE
;
1355 ctx
->Array
.Color
.Flags
= CA_CLIENT_DATA
;
1356 ctx
->Array
.SecondaryColor
.Size
= 4;
1357 ctx
->Array
.SecondaryColor
.Type
= GL_FLOAT
;
1358 ctx
->Array
.SecondaryColor
.Stride
= 0;
1359 ctx
->Array
.SecondaryColor
.StrideB
= 0;
1360 ctx
->Array
.SecondaryColor
.Ptr
= NULL
;
1361 ctx
->Array
.SecondaryColor
.Enabled
= GL_FALSE
;
1362 ctx
->Array
.SecondaryColor
.Flags
= CA_CLIENT_DATA
;
1363 ctx
->Array
.FogCoord
.Size
= 1;
1364 ctx
->Array
.FogCoord
.Type
= GL_FLOAT
;
1365 ctx
->Array
.FogCoord
.Stride
= 0;
1366 ctx
->Array
.FogCoord
.StrideB
= 0;
1367 ctx
->Array
.FogCoord
.Ptr
= NULL
;
1368 ctx
->Array
.FogCoord
.Enabled
= GL_FALSE
;
1369 ctx
->Array
.FogCoord
.Flags
= CA_CLIENT_DATA
;
1370 ctx
->Array
.Index
.Type
= GL_FLOAT
;
1371 ctx
->Array
.Index
.Stride
= 0;
1372 ctx
->Array
.Index
.StrideB
= 0;
1373 ctx
->Array
.Index
.Ptr
= NULL
;
1374 ctx
->Array
.Index
.Enabled
= GL_FALSE
;
1375 ctx
->Array
.Index
.Flags
= CA_CLIENT_DATA
;
1376 for (i
= 0; i
< MAX_TEXTURE_UNITS
; i
++) {
1377 ctx
->Array
.TexCoord
[i
].Size
= 4;
1378 ctx
->Array
.TexCoord
[i
].Type
= GL_FLOAT
;
1379 ctx
->Array
.TexCoord
[i
].Stride
= 0;
1380 ctx
->Array
.TexCoord
[i
].StrideB
= 0;
1381 ctx
->Array
.TexCoord
[i
].Ptr
= NULL
;
1382 ctx
->Array
.TexCoord
[i
].Enabled
= GL_FALSE
;
1383 ctx
->Array
.TexCoord
[i
].Flags
= CA_CLIENT_DATA
;
1385 ctx
->Array
.TexCoordInterleaveFactor
= 1;
1386 ctx
->Array
.EdgeFlag
.Stride
= 0;
1387 ctx
->Array
.EdgeFlag
.StrideB
= 0;
1388 ctx
->Array
.EdgeFlag
.Ptr
= NULL
;
1389 ctx
->Array
.EdgeFlag
.Enabled
= GL_FALSE
;
1390 ctx
->Array
.EdgeFlag
.Flags
= CA_CLIENT_DATA
;
1391 ctx
->Array
.ActiveTexture
= 0; /* GL_ARB_multitexture */
1393 /* Pixel transfer */
1394 ctx
->Pack
.Alignment
= 4;
1395 ctx
->Pack
.RowLength
= 0;
1396 ctx
->Pack
.ImageHeight
= 0;
1397 ctx
->Pack
.SkipPixels
= 0;
1398 ctx
->Pack
.SkipRows
= 0;
1399 ctx
->Pack
.SkipImages
= 0;
1400 ctx
->Pack
.SwapBytes
= GL_FALSE
;
1401 ctx
->Pack
.LsbFirst
= GL_FALSE
;
1402 ctx
->Unpack
.Alignment
= 4;
1403 ctx
->Unpack
.RowLength
= 0;
1404 ctx
->Unpack
.ImageHeight
= 0;
1405 ctx
->Unpack
.SkipPixels
= 0;
1406 ctx
->Unpack
.SkipRows
= 0;
1407 ctx
->Unpack
.SkipImages
= 0;
1408 ctx
->Unpack
.SwapBytes
= GL_FALSE
;
1409 ctx
->Unpack
.LsbFirst
= GL_FALSE
;
1412 ctx
->Feedback
.Type
= GL_2D
; /* TODO: verify */
1413 ctx
->Feedback
.Buffer
= NULL
;
1414 ctx
->Feedback
.BufferSize
= 0;
1415 ctx
->Feedback
.Count
= 0;
1417 /* Selection/picking */
1418 ctx
->Select
.Buffer
= NULL
;
1419 ctx
->Select
.BufferSize
= 0;
1420 ctx
->Select
.BufferCount
= 0;
1421 ctx
->Select
.Hits
= 0;
1422 ctx
->Select
.NameStackDepth
= 0;
1424 /* Renderer and client attribute stacks */
1425 ctx
->AttribStackDepth
= 0;
1426 ctx
->ClientAttribStackDepth
= 0;
1430 ctx
->ExecuteFlag
= GL_TRUE
;
1431 ctx
->CompileFlag
= GL_FALSE
;
1432 ctx
->CurrentListPtr
= NULL
;
1433 ctx
->CurrentBlock
= NULL
;
1434 ctx
->CurrentListNum
= 0;
1435 ctx
->CurrentPos
= 0;
1438 _mesa_init_colortable(&ctx
->ColorTable
);
1439 _mesa_init_colortable(&ctx
->ProxyColorTable
);
1440 _mesa_init_colortable(&ctx
->PostConvolutionColorTable
);
1441 _mesa_init_colortable(&ctx
->ProxyPostConvolutionColorTable
);
1442 _mesa_init_colortable(&ctx
->PostColorMatrixColorTable
);
1443 _mesa_init_colortable(&ctx
->ProxyPostColorMatrixColorTable
);
1445 /* GL_NV_vertex_program */
1446 ctx
->VertexProgram
.Current
= NULL
;
1447 ctx
->VertexProgram
.CurrentID
= 0;
1448 ctx
->VertexProgram
.Enabled
= GL_FALSE
;
1449 ctx
->VertexProgram
.PointSizeEnabled
= GL_FALSE
;
1450 ctx
->VertexProgram
.TwoSideEnabled
= GL_FALSE
;
1451 for (i
= 0; i
< VP_NUM_PROG_REGS
/ 4; i
++) {
1452 ctx
->VertexProgram
.TrackMatrix
[i
] = GL_NONE
;
1453 ctx
->VertexProgram
.TrackMatrixTransform
[i
] = GL_IDENTITY_NV
;
1457 ctx
->NewState
= _NEW_ALL
;
1458 ctx
->RenderMode
= GL_RENDER
;
1459 ctx
->_ImageTransferState
= 0;
1461 ctx
->_NeedNormals
= 0;
1462 ctx
->_NeedEyeCoords
= 0;
1463 ctx
->_ModelViewInvScale
= 1.0;
1465 ctx
->ErrorValue
= (GLenum
) GL_NO_ERROR
;
1467 ctx
->CatchSignals
= GL_TRUE
;
1468 ctx
->OcclusionResult
= GL_FALSE
;
1469 ctx
->OcclusionResultSaved
= GL_FALSE
;
1471 /* For debug/development only */
1472 ctx
->NoRaster
= ctx
->imports
.getenv(ctx
, "MESA_NO_RASTER") ? GL_TRUE
: GL_FALSE
;
1473 ctx
->FirstTimeCurrent
= GL_TRUE
;
1475 /* Dither disable */
1476 ctx
->NoDither
= ctx
->imports
.getenv(ctx
, "MESA_NO_DITHER") ? GL_TRUE
: GL_FALSE
;
1477 if (ctx
->NoDither
) {
1478 if (ctx
->imports
.getenv(ctx
, "MESA_DEBUG")) {
1479 fprintf(stderr
, "MESA_NO_DITHER set - dithering disabled\n");
1481 ctx
->Color
.DitherFlag
= GL_FALSE
;
1489 * Allocate the proxy textures. If we run out of memory part way through
1490 * the allocations clean up and return GL_FALSE.
1491 * Return: GL_TRUE=success, GL_FALSE=failure
1494 alloc_proxy_textures( GLcontext
*ctx
)
1496 GLboolean out_of_memory
;
1499 ctx
->Texture
.Proxy1D
= _mesa_alloc_texture_object(NULL
, 0, GL_TEXTURE_1D
);
1500 if (!ctx
->Texture
.Proxy1D
) {
1504 ctx
->Texture
.Proxy2D
= _mesa_alloc_texture_object(NULL
, 0, GL_TEXTURE_2D
);
1505 if (!ctx
->Texture
.Proxy2D
) {
1506 _mesa_free_texture_object(NULL
, ctx
->Texture
.Proxy1D
);
1510 ctx
->Texture
.Proxy3D
= _mesa_alloc_texture_object(NULL
, 0, GL_TEXTURE_3D
);
1511 if (!ctx
->Texture
.Proxy3D
) {
1512 _mesa_free_texture_object(NULL
, ctx
->Texture
.Proxy1D
);
1513 _mesa_free_texture_object(NULL
, ctx
->Texture
.Proxy2D
);
1517 ctx
->Texture
.ProxyCubeMap
= _mesa_alloc_texture_object(NULL
, 0,
1518 GL_TEXTURE_CUBE_MAP_ARB
);
1519 if (!ctx
->Texture
.ProxyCubeMap
) {
1520 _mesa_free_texture_object(NULL
, ctx
->Texture
.Proxy1D
);
1521 _mesa_free_texture_object(NULL
, ctx
->Texture
.Proxy2D
);
1522 _mesa_free_texture_object(NULL
, ctx
->Texture
.Proxy3D
);
1526 ctx
->Texture
.ProxyRect
= _mesa_alloc_texture_object(NULL
, 0,
1527 GL_TEXTURE_RECTANGLE_NV
);
1528 if (!ctx
->Texture
.ProxyRect
) {
1529 _mesa_free_texture_object(NULL
, ctx
->Texture
.Proxy1D
);
1530 _mesa_free_texture_object(NULL
, ctx
->Texture
.Proxy2D
);
1531 _mesa_free_texture_object(NULL
, ctx
->Texture
.Proxy3D
);
1532 _mesa_free_texture_object(NULL
, ctx
->Texture
.ProxyCubeMap
);
1536 out_of_memory
= GL_FALSE
;
1537 for (i
=0;i
<MAX_TEXTURE_LEVELS
;i
++) {
1538 ctx
->Texture
.Proxy1D
->Image
[i
] = _mesa_alloc_texture_image();
1539 ctx
->Texture
.Proxy2D
->Image
[i
] = _mesa_alloc_texture_image();
1540 ctx
->Texture
.Proxy3D
->Image
[i
] = _mesa_alloc_texture_image();
1541 ctx
->Texture
.ProxyCubeMap
->Image
[i
] = _mesa_alloc_texture_image();
1542 if (!ctx
->Texture
.Proxy1D
->Image
[i
]
1543 || !ctx
->Texture
.Proxy2D
->Image
[i
]
1544 || !ctx
->Texture
.Proxy3D
->Image
[i
]
1545 || !ctx
->Texture
.ProxyCubeMap
->Image
[i
]) {
1546 out_of_memory
= GL_TRUE
;
1549 ctx
->Texture
.ProxyRect
->Image
[0] = _mesa_alloc_texture_image();
1550 if (!ctx
->Texture
.ProxyRect
->Image
[0])
1551 out_of_memory
= GL_TRUE
;
1553 if (out_of_memory
) {
1554 for (i
=0;i
<MAX_TEXTURE_LEVELS
;i
++) {
1555 if (ctx
->Texture
.Proxy1D
->Image
[i
]) {
1556 _mesa_free_texture_image(ctx
->Texture
.Proxy1D
->Image
[i
]);
1558 if (ctx
->Texture
.Proxy2D
->Image
[i
]) {
1559 _mesa_free_texture_image(ctx
->Texture
.Proxy2D
->Image
[i
]);
1561 if (ctx
->Texture
.Proxy3D
->Image
[i
]) {
1562 _mesa_free_texture_image(ctx
->Texture
.Proxy3D
->Image
[i
]);
1564 if (ctx
->Texture
.ProxyCubeMap
->Image
[i
]) {
1565 _mesa_free_texture_image(ctx
->Texture
.ProxyCubeMap
->Image
[i
]);
1568 if (ctx
->Texture
.ProxyRect
->Image
[0]) {
1569 _mesa_free_texture_image(ctx
->Texture
.ProxyRect
->Image
[0]);
1571 _mesa_free_texture_object(NULL
, ctx
->Texture
.Proxy1D
);
1572 _mesa_free_texture_object(NULL
, ctx
->Texture
.Proxy2D
);
1573 _mesa_free_texture_object(NULL
, ctx
->Texture
.Proxy3D
);
1574 _mesa_free_texture_object(NULL
, ctx
->Texture
.ProxyCubeMap
);
1575 _mesa_free_texture_object(NULL
, ctx
->Texture
.ProxyRect
);
1584 static void add_debug_flags( const char *debug
)
1587 if (strstr(debug
, "varray"))
1588 MESA_VERBOSE
|= VERBOSE_VARRAY
;
1590 if (strstr(debug
, "tex"))
1591 MESA_VERBOSE
|= VERBOSE_TEXTURE
;
1593 if (strstr(debug
, "imm"))
1594 MESA_VERBOSE
|= VERBOSE_IMMEDIATE
;
1596 if (strstr(debug
, "pipe"))
1597 MESA_VERBOSE
|= VERBOSE_PIPELINE
;
1599 if (strstr(debug
, "driver"))
1600 MESA_VERBOSE
|= VERBOSE_DRIVER
;
1602 if (strstr(debug
, "state"))
1603 MESA_VERBOSE
|= VERBOSE_STATE
;
1605 if (strstr(debug
, "api"))
1606 MESA_VERBOSE
|= VERBOSE_API
;
1608 if (strstr(debug
, "list"))
1609 MESA_VERBOSE
|= VERBOSE_DISPLAY_LIST
;
1611 if (strstr(debug
, "lighting"))
1612 MESA_VERBOSE
|= VERBOSE_LIGHTING
;
1616 if (strstr(debug
, "flush"))
1617 MESA_DEBUG_FLAGS
|= DEBUG_ALWAYS_FLUSH
;
1623 * Initialize a GLcontext struct. This includes allocating all the
1624 * other structs and arrays which hang off of the context by pointers.
1627 _mesa_initialize_context( GLcontext
*ctx
,
1628 const GLvisual
*visual
,
1629 GLcontext
*share_list
,
1630 const __GLimports
*imports
)
1632 GLuint dispatchSize
;
1635 ASSERT(imports
->other
); /* other points to the device driver's context */
1637 /* assing imports */
1638 ctx
->imports
= *imports
;
1640 /* initialize the exports (Mesa functions called by the window system) */
1641 _mesa_init_default_exports( &(ctx
->exports
) );
1643 /* misc one-time initializations */
1650 if (!ctx
->imports
.malloc
) {
1651 _mesa_init_default_imports(&ctx
->imports
, driver_ctx
);
1653 /* exports are setup by the device driver */
1656 ctx
->DriverCtx
= imports
->other
;
1657 ctx
->Visual
= *visual
;
1658 ctx
->DrawBuffer
= NULL
;
1659 ctx
->ReadBuffer
= NULL
;
1662 /* share state with another context */
1663 ctx
->Shared
= share_list
->Shared
;
1666 /* allocate new, unshared state */
1667 ctx
->Shared
= alloc_shared_state();
1672 _glthread_LOCK_MUTEX(ctx
->Shared
->Mutex
);
1673 ctx
->Shared
->RefCount
++;
1674 _glthread_UNLOCK_MUTEX(ctx
->Shared
->Mutex
);
1676 /* Effectively bind the default textures to all texture units */
1677 ctx
->Shared
->Default1D
->RefCount
+= MAX_TEXTURE_UNITS
;
1678 ctx
->Shared
->Default2D
->RefCount
+= MAX_TEXTURE_UNITS
;
1679 ctx
->Shared
->Default3D
->RefCount
+= MAX_TEXTURE_UNITS
;
1680 ctx
->Shared
->DefaultCubeMap
->RefCount
+= MAX_TEXTURE_UNITS
;
1681 ctx
->Shared
->DefaultRect
->RefCount
+= MAX_TEXTURE_UNITS
;
1683 init_attrib_groups( ctx
);
1685 if (visual
->doubleBufferMode
) {
1686 ctx
->Color
.DrawBuffer
= GL_BACK
;
1687 ctx
->Color
.DriverDrawBuffer
= GL_BACK_LEFT
;
1688 ctx
->Color
.DrawDestMask
= BACK_LEFT_BIT
;
1689 ctx
->Pixel
.ReadBuffer
= GL_BACK
;
1690 ctx
->Pixel
.DriverReadBuffer
= GL_BACK_LEFT
;
1693 ctx
->Color
.DrawBuffer
= GL_FRONT
;
1694 ctx
->Color
.DriverDrawBuffer
= GL_FRONT_LEFT
;
1695 ctx
->Color
.DrawDestMask
= FRONT_LEFT_BIT
;
1696 ctx
->Pixel
.ReadBuffer
= GL_FRONT
;
1697 ctx
->Pixel
.DriverReadBuffer
= GL_FRONT_LEFT
;
1700 if (!alloc_proxy_textures(ctx
)) {
1701 free_shared_state(ctx
, ctx
->Shared
);
1705 /* register the most recent extension functions with libGL */
1706 _glapi_add_entrypoint("glTbufferMask3DFX", 553);
1707 _glapi_add_entrypoint("glCompressedTexImage3DARB", 554);
1708 _glapi_add_entrypoint("glCompressedTexImage2DARB", 555);
1709 _glapi_add_entrypoint("glCompressedTexImage1DARB", 556);
1710 _glapi_add_entrypoint("glCompressedTexSubImage3DARB", 557);
1711 _glapi_add_entrypoint("glCompressedTexSubImage2DARB", 558);
1712 _glapi_add_entrypoint("glCompressedTexSubImage1DARB", 559);
1713 _glapi_add_entrypoint("glGetCompressedTexImageARB", 560);
1715 /* Find the larger of Mesa's dispatch table and libGL's dispatch table.
1716 * In practice, this'll be the same for stand-alone Mesa. But for DRI
1717 * Mesa we do this to accomodate different versions of libGL and various
1720 dispatchSize
= MAX2(_glapi_get_dispatch_table_size(),
1721 sizeof(struct _glapi_table
) / sizeof(void *));
1723 /* setup API dispatch tables */
1724 ctx
->Exec
= (struct _glapi_table
*) CALLOC(dispatchSize
* sizeof(void*));
1725 ctx
->Save
= (struct _glapi_table
*) CALLOC(dispatchSize
* sizeof(void*));
1726 if (!ctx
->Exec
|| !ctx
->Save
) {
1727 free_shared_state(ctx
, ctx
->Shared
);
1731 _mesa_init_exec_table(ctx
->Exec
, dispatchSize
);
1732 _mesa_init_dlist_table(ctx
->Save
, dispatchSize
);
1733 ctx
->CurrentDispatch
= ctx
->Exec
;
1735 ctx
->ExecPrefersFloat
= GL_FALSE
;
1736 ctx
->SavePrefersFloat
= GL_FALSE
;
1738 /* Neutral tnl module stuff */
1739 _mesa_init_exec_vtxfmt( ctx
);
1740 ctx
->TnlModule
.Current
= NULL
;
1741 ctx
->TnlModule
.SwapCount
= 0;
1743 /* Z buffer stuff */
1744 if (ctx
->Visual
.depthBits
== 0) {
1745 /* Special case. Even if we don't have a depth buffer we need
1746 * good values for DepthMax for Z vertex transformation purposes
1747 * and for per-fragment fog computation.
1749 ctx
->DepthMax
= 1 << 16;
1750 ctx
->DepthMaxF
= (GLfloat
) ctx
->DepthMax
;
1752 else if (ctx
->Visual
.depthBits
< 32) {
1753 ctx
->DepthMax
= (1 << ctx
->Visual
.depthBits
) - 1;
1754 ctx
->DepthMaxF
= (GLfloat
) ctx
->DepthMax
;
1757 /* Special case since shift values greater than or equal to the
1758 * number of bits in the left hand expression's type are undefined.
1760 ctx
->DepthMax
= 0xffffffff;
1761 ctx
->DepthMaxF
= (GLfloat
) ctx
->DepthMax
;
1763 ctx
->MRD
= 1.0; /* Minimum resolvable depth value, for polygon offset */
1766 #if defined(MESA_TRACE)
1767 ctx
->TraceCtx
= (trace_context_t
*) CALLOC( sizeof(trace_context_t
) );
1769 /* Brian: do you want to have CreateContext fail here,
1770 or should we just trap in NewTrace (currently done)? */
1771 if (!(ctx
->TraceCtx
)) {
1772 free_shared_state(ctx
, ctx
->Shared
);
1778 trInitContext(ctx
->TraceCtx
);
1780 ctx
->TraceDispatch
= (struct _glapi_table
*)
1781 CALLOC(dispatchSize
* sizeof(void*));
1783 if (!(ctx
->TraceCtx
)) {
1784 free_shared_state(ctx
, ctx
->Shared
);
1787 FREE( ctx
->TraceCtx
);
1791 trInitDispatch(ctx
->TraceDispatch
);
1795 if (ctx
->imports
.getenv(ctx
, "MESA_DEBUG"))
1796 add_debug_flags(ctx
->imports
.getenv(ctx
, "MESA_DEBUG"));
1798 if (ctx
->imports
.getenv(ctx
, "MESA_VERBOSE"))
1799 add_debug_flags(ctx
->imports
.getenv(ctx
, "MESA_VERBOSE"));
1807 * Allocate and initialize a GLcontext structure.
1808 * Input: visual - a GLvisual pointer (we copy the struct contents)
1809 * sharelist - another context to share display lists with or NULL
1810 * imports - points to a fully-initialized __GLimports object.
1811 * Return: pointer to a new __GLcontextRec or NULL if error.
1814 _mesa_create_context( const GLvisual
*visual
,
1815 GLcontext
*share_list
,
1816 const __GLimports
*imports
)
1822 ASSERT(imports
->calloc
);
1824 ctx
= (GLcontext
*) imports
->calloc(NULL
, 1, sizeof(GLcontext
));
1828 ctx
->Driver
.CurrentExecPrimitive
= 0; /* XXX why is this here??? */
1830 if (_mesa_initialize_context(ctx
, visual
, share_list
, imports
)) {
1834 imports
->free(NULL
, ctx
);
1842 * Free the data associated with the given context.
1843 * But don't free() the GLcontext struct itself!
1846 _mesa_free_context_data( GLcontext
*ctx
)
1848 struct gl_shine_tab
*s
, *tmps
;
1851 /* if we're destroying the current context, unbind it first */
1852 if (ctx
== _mesa_get_current_context()) {
1853 _mesa_make_current(NULL
, NULL
);
1857 * Free transformation matrix stacks
1859 free_matrix_stack(&ctx
->ModelviewMatrixStack
);
1860 free_matrix_stack(&ctx
->ProjectionMatrixStack
);
1861 free_matrix_stack(&ctx
->ColorMatrixStack
);
1862 for (i
= 0; i
< MAX_TEXTURE_UNITS
; i
++)
1863 free_matrix_stack(&ctx
->TextureMatrixStack
[i
]);
1864 for (i
= 0; i
< MAX_PROGRAM_MATRICES
; i
++)
1865 free_matrix_stack(&ctx
->ProgramMatrixStack
[i
]);
1866 /* combined Modelview*Projection matrix */
1867 _math_matrix_dtr( &ctx
->_ModelProjectMatrix
);
1870 if (ctx
->VertexProgram
.Current
) {
1871 ctx
->VertexProgram
.Current
->RefCount
--;
1872 if (ctx
->VertexProgram
.Current
->RefCount
<= 0)
1873 _mesa_delete_program(ctx
, ctx
->VertexProgram
.CurrentID
);
1876 /* Shared context state (display lists, textures, etc) */
1877 _glthread_LOCK_MUTEX(ctx
->Shared
->Mutex
);
1878 ctx
->Shared
->RefCount
--;
1879 assert(ctx
->Shared
->RefCount
>= 0);
1880 _glthread_UNLOCK_MUTEX(ctx
->Shared
->Mutex
);
1881 if (ctx
->Shared
->RefCount
== 0) {
1882 /* free shared state */
1883 free_shared_state( ctx
, ctx
->Shared
);
1886 /* Free lighting shininess exponentiation table */
1887 foreach_s( s
, tmps
, ctx
->_ShineTabList
) {
1890 FREE( ctx
->_ShineTabList
);
1892 /* Free proxy texture objects */
1893 _mesa_free_texture_object( NULL
, ctx
->Texture
.Proxy1D
);
1894 _mesa_free_texture_object( NULL
, ctx
->Texture
.Proxy2D
);
1895 _mesa_free_texture_object( NULL
, ctx
->Texture
.Proxy3D
);
1896 _mesa_free_texture_object( NULL
, ctx
->Texture
.ProxyCubeMap
);
1897 _mesa_free_texture_object( NULL
, ctx
->Texture
.ProxyRect
);
1899 /* Free evaluator data */
1900 if (ctx
->EvalMap
.Map1Vertex3
.Points
)
1901 FREE( ctx
->EvalMap
.Map1Vertex3
.Points
);
1902 if (ctx
->EvalMap
.Map1Vertex4
.Points
)
1903 FREE( ctx
->EvalMap
.Map1Vertex4
.Points
);
1904 if (ctx
->EvalMap
.Map1Index
.Points
)
1905 FREE( ctx
->EvalMap
.Map1Index
.Points
);
1906 if (ctx
->EvalMap
.Map1Color4
.Points
)
1907 FREE( ctx
->EvalMap
.Map1Color4
.Points
);
1908 if (ctx
->EvalMap
.Map1Normal
.Points
)
1909 FREE( ctx
->EvalMap
.Map1Normal
.Points
);
1910 if (ctx
->EvalMap
.Map1Texture1
.Points
)
1911 FREE( ctx
->EvalMap
.Map1Texture1
.Points
);
1912 if (ctx
->EvalMap
.Map1Texture2
.Points
)
1913 FREE( ctx
->EvalMap
.Map1Texture2
.Points
);
1914 if (ctx
->EvalMap
.Map1Texture3
.Points
)
1915 FREE( ctx
->EvalMap
.Map1Texture3
.Points
);
1916 if (ctx
->EvalMap
.Map1Texture4
.Points
)
1917 FREE( ctx
->EvalMap
.Map1Texture4
.Points
);
1918 for (i
= 0; i
< 16; i
++)
1919 FREE((ctx
->EvalMap
.Map1Attrib
[i
].Points
));
1921 if (ctx
->EvalMap
.Map2Vertex3
.Points
)
1922 FREE( ctx
->EvalMap
.Map2Vertex3
.Points
);
1923 if (ctx
->EvalMap
.Map2Vertex4
.Points
)
1924 FREE( ctx
->EvalMap
.Map2Vertex4
.Points
);
1925 if (ctx
->EvalMap
.Map2Index
.Points
)
1926 FREE( ctx
->EvalMap
.Map2Index
.Points
);
1927 if (ctx
->EvalMap
.Map2Color4
.Points
)
1928 FREE( ctx
->EvalMap
.Map2Color4
.Points
);
1929 if (ctx
->EvalMap
.Map2Normal
.Points
)
1930 FREE( ctx
->EvalMap
.Map2Normal
.Points
);
1931 if (ctx
->EvalMap
.Map2Texture1
.Points
)
1932 FREE( ctx
->EvalMap
.Map2Texture1
.Points
);
1933 if (ctx
->EvalMap
.Map2Texture2
.Points
)
1934 FREE( ctx
->EvalMap
.Map2Texture2
.Points
);
1935 if (ctx
->EvalMap
.Map2Texture3
.Points
)
1936 FREE( ctx
->EvalMap
.Map2Texture3
.Points
);
1937 if (ctx
->EvalMap
.Map2Texture4
.Points
)
1938 FREE( ctx
->EvalMap
.Map2Texture4
.Points
);
1939 for (i
= 0; i
< 16; i
++)
1940 FREE((ctx
->EvalMap
.Map2Attrib
[i
].Points
));
1942 _mesa_free_colortable_data( &ctx
->ColorTable
);
1943 _mesa_free_colortable_data( &ctx
->PostConvolutionColorTable
);
1944 _mesa_free_colortable_data( &ctx
->PostColorMatrixColorTable
);
1945 _mesa_free_colortable_data( &ctx
->Texture
.Palette
);
1947 _math_matrix_dtr(&ctx
->Viewport
._WindowMap
);
1949 _mesa_extensions_dtr(ctx
);
1958 * Destroy a GLcontext structure.
1961 _mesa_destroy_context( GLcontext
*ctx
)
1964 _mesa_free_context_data(ctx
);
1965 FREE( (void *) ctx
);
1972 * Copy attribute groups from one context to another.
1973 * Input: src - source context
1974 * dst - destination context
1975 * mask - bitwise OR of GL_*_BIT flags
1978 _mesa_copy_context( const GLcontext
*src
, GLcontext
*dst
, GLuint mask
)
1980 if (mask
& GL_ACCUM_BUFFER_BIT
) {
1981 MEMCPY( &dst
->Accum
, &src
->Accum
, sizeof(struct gl_accum_attrib
) );
1983 if (mask
& GL_COLOR_BUFFER_BIT
) {
1984 MEMCPY( &dst
->Color
, &src
->Color
, sizeof(struct gl_colorbuffer_attrib
) );
1986 if (mask
& GL_CURRENT_BIT
) {
1987 MEMCPY( &dst
->Current
, &src
->Current
, sizeof(struct gl_current_attrib
) );
1989 if (mask
& GL_DEPTH_BUFFER_BIT
) {
1990 MEMCPY( &dst
->Depth
, &src
->Depth
, sizeof(struct gl_depthbuffer_attrib
) );
1992 if (mask
& GL_ENABLE_BIT
) {
1995 if (mask
& GL_EVAL_BIT
) {
1996 MEMCPY( &dst
->Eval
, &src
->Eval
, sizeof(struct gl_eval_attrib
) );
1998 if (mask
& GL_FOG_BIT
) {
1999 MEMCPY( &dst
->Fog
, &src
->Fog
, sizeof(struct gl_fog_attrib
) );
2001 if (mask
& GL_HINT_BIT
) {
2002 MEMCPY( &dst
->Hint
, &src
->Hint
, sizeof(struct gl_hint_attrib
) );
2004 if (mask
& GL_LIGHTING_BIT
) {
2005 MEMCPY( &dst
->Light
, &src
->Light
, sizeof(struct gl_light_attrib
) );
2006 /* gl_reinit_light_attrib( &dst->Light ); */
2008 if (mask
& GL_LINE_BIT
) {
2009 MEMCPY( &dst
->Line
, &src
->Line
, sizeof(struct gl_line_attrib
) );
2011 if (mask
& GL_LIST_BIT
) {
2012 MEMCPY( &dst
->List
, &src
->List
, sizeof(struct gl_list_attrib
) );
2014 if (mask
& GL_PIXEL_MODE_BIT
) {
2015 MEMCPY( &dst
->Pixel
, &src
->Pixel
, sizeof(struct gl_pixel_attrib
) );
2017 if (mask
& GL_POINT_BIT
) {
2018 MEMCPY( &dst
->Point
, &src
->Point
, sizeof(struct gl_point_attrib
) );
2020 if (mask
& GL_POLYGON_BIT
) {
2021 MEMCPY( &dst
->Polygon
, &src
->Polygon
, sizeof(struct gl_polygon_attrib
) );
2023 if (mask
& GL_POLYGON_STIPPLE_BIT
) {
2024 /* Use loop instead of MEMCPY due to problem with Portland Group's
2025 * C compiler. Reported by John Stone.
2028 for (i
=0;i
<32;i
++) {
2029 dst
->PolygonStipple
[i
] = src
->PolygonStipple
[i
];
2032 if (mask
& GL_SCISSOR_BIT
) {
2033 MEMCPY( &dst
->Scissor
, &src
->Scissor
, sizeof(struct gl_scissor_attrib
) );
2035 if (mask
& GL_STENCIL_BUFFER_BIT
) {
2036 MEMCPY( &dst
->Stencil
, &src
->Stencil
, sizeof(struct gl_stencil_attrib
) );
2038 if (mask
& GL_TEXTURE_BIT
) {
2039 MEMCPY( &dst
->Texture
, &src
->Texture
, sizeof(struct gl_texture_attrib
) );
2041 if (mask
& GL_TRANSFORM_BIT
) {
2042 MEMCPY( &dst
->Transform
, &src
->Transform
, sizeof(struct gl_transform_attrib
) );
2044 if (mask
& GL_VIEWPORT_BIT
) {
2045 MEMCPY( &dst
->Viewport
, &src
->Viewport
, sizeof(struct gl_viewport_attrib
) );
2047 /* XXX FIXME: Call callbacks?
2049 dst
->NewState
= _NEW_ALL
;
2054 static void print_info( void )
2056 fprintf(stderr
, "Mesa GL_VERSION = %s\n",
2057 (char *) _mesa_GetString(GL_VERSION
));
2058 fprintf(stderr
, "Mesa GL_RENDERER = %s\n",
2059 (char *) _mesa_GetString(GL_RENDERER
));
2060 fprintf(stderr
, "Mesa GL_VENDOR = %s\n",
2061 (char *) _mesa_GetString(GL_VENDOR
));
2062 fprintf(stderr
, "Mesa GL_EXTENSIONS = %s\n",
2063 (char *) _mesa_GetString(GL_EXTENSIONS
));
2064 #if defined(THREADS)
2065 fprintf(stderr
, "Mesa thread-safe: YES\n");
2067 fprintf(stderr
, "Mesa thread-safe: NO\n");
2069 #if defined(USE_X86_ASM)
2070 fprintf(stderr
, "Mesa x86-optimized: YES\n");
2072 fprintf(stderr
, "Mesa x86-optimized: NO\n");
2074 #if defined(USE_SPARC_ASM)
2075 fprintf(stderr
, "Mesa sparc-optimized: YES\n");
2077 fprintf(stderr
, "Mesa sparc-optimized: NO\n");
2083 * Set the current context, binding the given frame buffer to the context.
2086 _mesa_make_current( GLcontext
*newCtx
, GLframebuffer
*buffer
)
2088 _mesa_make_current2( newCtx
, buffer
, buffer
);
2093 * Bind the given context to the given draw-buffer and read-buffer
2094 * and make it the current context for this thread.
2097 _mesa_make_current2( GLcontext
*newCtx
, GLframebuffer
*drawBuffer
,
2098 GLframebuffer
*readBuffer
)
2101 _mesa_debug(newCtx
, "_mesa_make_current2()\n");
2103 /* Check that the context's and framebuffer's visuals are compatible.
2104 * We could do a lot more checking here but this'll catch obvious
2107 if (newCtx
&& drawBuffer
&& readBuffer
) {
2108 if (newCtx
->Visual
.rgbMode
!= drawBuffer
->Visual
.rgbMode
||
2109 newCtx
->Visual
.redBits
!= drawBuffer
->Visual
.redBits
||
2110 newCtx
->Visual
.depthBits
!= drawBuffer
->Visual
.depthBits
||
2111 newCtx
->Visual
.stencilBits
!= drawBuffer
->Visual
.stencilBits
||
2112 newCtx
->Visual
.accumRedBits
!= drawBuffer
->Visual
.accumRedBits
) {
2113 return; /* incompatible */
2117 /* We call this function periodically (just here for now) in
2118 * order to detect when multithreading has begun.
2120 _glapi_check_multithread();
2122 _glapi_set_context((void *) newCtx
);
2123 ASSERT(_mesa_get_current_context() == newCtx
);
2127 _glapi_set_dispatch(NULL
); /* none current */
2130 _glapi_set_dispatch(newCtx
->CurrentDispatch
);
2132 if (drawBuffer
&& readBuffer
) {
2133 /* TODO: check if newCtx and buffer's visual match??? */
2134 newCtx
->DrawBuffer
= drawBuffer
;
2135 newCtx
->ReadBuffer
= readBuffer
;
2136 newCtx
->NewState
|= _NEW_BUFFERS
;
2137 /* _mesa_update_state( newCtx ); */
2140 /* This is only for T&L - a bit out of place, or misnamed (BP) */
2141 if (newCtx
->Driver
.MakeCurrent
)
2142 newCtx
->Driver
.MakeCurrent( newCtx
, drawBuffer
, readBuffer
);
2144 /* We can use this to help debug user's problems. Tell them to set
2145 * the MESA_INFO env variable before running their app. Then the
2146 * first time each context is made current we'll print some useful
2149 if (newCtx
->FirstTimeCurrent
) {
2150 if (newCtx
->imports
.getenv(newCtx
, "MESA_INFO")) {
2153 newCtx
->FirstTimeCurrent
= GL_FALSE
;
2161 * Return current context handle for the calling thread.
2162 * This isn't the fastest way to get the current context.
2163 * If you need speed, see the GET_CURRENT_CONTEXT() macro in context.h
2166 _mesa_get_current_context( void )
2168 return (GLcontext
*) _glapi_get_context();
2174 * This should be called by device drivers just before they do a
2175 * swapbuffers. Any pending rendering commands will be executed.
2176 * XXX we should really rename this function to _mesa_flush() or something.
2179 _mesa_swapbuffers(GLcontext
*ctx
)
2181 FLUSH_VERTICES( ctx
, 0 );
2187 * Return pointer to this context's current API dispatch table.
2188 * It'll either be the immediate-mode execute dispatcher or the
2189 * display list compile dispatcher.
2191 struct _glapi_table
*
2192 _mesa_get_dispatch(GLcontext
*ctx
)
2194 return ctx
->CurrentDispatch
;
2199 /**********************************************************************/
2200 /***** Miscellaneous functions *****/
2201 /**********************************************************************/
2205 * This function is called when the Mesa user has stumbled into a code
2206 * path which may not be implemented fully or correctly.
2208 void _mesa_problem( const GLcontext
*ctx
, const char *s
)
2211 ctx
->imports
.fprintf((GLcontext
*) ctx
, stderr
, "Mesa implementation error: %s\n", s
);
2213 ctx
->imports
.fprintf((GLcontext
*) ctx
, stderr
, "Please report to the DRI bug database at dri.sourceforge.net\n");
2215 ctx
->imports
.fprintf((GLcontext
*) ctx
, stderr
, "Please report to the Mesa bug database at www.mesa3d.org\n" );
2219 /* what can we do if we don't have a context???? */
2220 fprintf( stderr
, "Mesa implementation error: %s\n", s
);
2222 fprintf( stderr
, "Please report to the DRI bug database at dri.sourceforge.net\n");
2224 fprintf( stderr
, "Please report to the Mesa bug database at www.mesa3d.org\n" );
2232 * This is called to inform the user that he or she has tried to do
2233 * something illogical or if there's likely a bug in their program
2234 * (like enabled depth testing without a depth buffer).
2237 _mesa_warning( const GLcontext
*ctx
, const char *s
)
2239 (*ctx
->imports
.warning
)((__GLcontext
*) ctx
, (char *) s
);
2245 * This is Mesa's error handler. Normally, all that's done is the updating
2246 * of the current error value. If Mesa is compiled with -DDEBUG or if the
2247 * environment variable "MESA_DEBUG" is defined then a real error message
2248 * is printed to stderr.
2249 * Input: ctx - the GL context
2250 * error - the error value
2251 * where - usually the name of function where error was detected
2254 _mesa_error( GLcontext
*ctx
, GLenum error
, const char *where
)
2256 const char *debugEnv
;
2260 debugEnv
= ctx
->imports
.getenv(ctx
, "MESA_DEBUG");
2262 /* what can we do??? */
2266 if (debugEnv
&& strstr(debugEnv
, "silent"))
2281 errstr
= "GL_NO_ERROR";
2283 case GL_INVALID_VALUE
:
2284 errstr
= "GL_INVALID_VALUE";
2286 case GL_INVALID_ENUM
:
2287 errstr
= "GL_INVALID_ENUM";
2289 case GL_INVALID_OPERATION
:
2290 errstr
= "GL_INVALID_OPERATION";
2292 case GL_STACK_OVERFLOW
:
2293 errstr
= "GL_STACK_OVERFLOW";
2295 case GL_STACK_UNDERFLOW
:
2296 errstr
= "GL_STACK_UNDERFLOW";
2298 case GL_OUT_OF_MEMORY
:
2299 errstr
= "GL_OUT_OF_MEMORY";
2301 case GL_TABLE_TOO_LARGE
:
2302 errstr
= "GL_TABLE_TOO_LARGE";
2308 fprintf(stderr
, "Mesa user error: %s in %s\n", errstr
, where
);
2314 if (ctx
->ErrorValue
== GL_NO_ERROR
) {
2315 ctx
->ErrorValue
= error
;
2318 /* Call device driver's error handler, if any. This is used on the Mac. */
2319 if (ctx
->Driver
.Error
) {
2320 (*ctx
->Driver
.Error
)( ctx
);
2326 * Call this to report debug information. Uses stderr.
2329 _mesa_debug( const GLcontext
*ctx
, const char *fmtString
, ... )
2332 va_start( args
, fmtString
);
2333 (void) ctx
->imports
.fprintf( (__GLcontext
*) ctx
, stderr
, fmtString
, args
);
2339 * A wrapper for printf. Uses stdout.
2342 _mesa_printf( const GLcontext
*ctx
, const char *fmtString
, ... )
2345 va_start( args
, fmtString
);
2346 (void) ctx
->imports
.fprintf( (__GLcontext
*) ctx
, stdout
, fmtString
, args
);
2353 _mesa_Finish( void )
2355 GET_CURRENT_CONTEXT(ctx
);
2356 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
2357 if (ctx
->Driver
.Finish
) {
2358 (*ctx
->Driver
.Finish
)( ctx
);
2367 GET_CURRENT_CONTEXT(ctx
);
2368 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
2369 if (ctx
->Driver
.Flush
) {
2370 (*ctx
->Driver
.Flush
)( ctx
);
2376 const char *_mesa_prim_name
[GL_POLYGON
+4] = {
2382 "GL_TRIANGLE_STRIP",
2387 "outside begin/end",
2388 "inside unkown primitive",