3 * Mesa context/visual/framebuffer management functions.
8 * Mesa 3-D graphics library
11 * Copyright (C) 1999-2005 Brian Paul All Rights Reserved.
13 * Permission is hereby granted, free of charge, to any person obtaining a
14 * copy of this software and associated documentation files (the "Software"),
15 * to deal in the Software without restriction, including without limitation
16 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
17 * and/or sell copies of the Software, and to permit persons to whom the
18 * Software is furnished to do so, subject to the following conditions:
20 * The above copyright notice and this permission notice shall be included
21 * in all copies or substantial portions of the Software.
23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
24 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
25 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
26 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
27 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
28 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
33 * \mainpage Mesa Main Module
35 * \section MainIntroduction Introduction
37 * The Mesa Main module consists of all the files in the main/ directory.
38 * Among the features of this module are:
40 * <LI> Structures to represent most GL state </LI>
41 * <LI> State set/get functions </LI>
42 * <LI> Display lists </LI>
43 * <LI> Texture unit, object and image handling </LI>
44 * <LI> Matrix and attribute stacks </LI>
47 * Other modules are responsible for API dispatch, vertex transformation,
48 * point/line/triangle setup, rasterization, vertex array caching,
49 * vertex/fragment programs/shaders, etc.
52 * \section AboutDoxygen About Doxygen
54 * If you're viewing this information as Doxygen-generated HTML you'll
55 * see the documentation index at the top of this page.
57 * The first line lists the Mesa source code modules.
58 * The second line lists the indexes available for viewing the documentation
61 * Selecting the <b>Main page</b> link will display a summary of the module
64 * Selecting <b>Data Structures</b> will list all C structures.
66 * Selecting the <b>File List</b> link will list all the source files in
68 * Selecting a filename will show a list of all functions defined in that file.
70 * Selecting the <b>Data Fields</b> link will display a list of all
71 * documented structure members.
73 * Selecting the <b>Globals</b> link will display a list
74 * of all functions, structures, global variables and macros in the module.
85 #include "bufferobj.h"
93 #include "extensions.h"
98 #include "glapioffsets.h"
99 #include "histogram.h"
110 #if FEATURE_NV_vertex_program || FEATURE_NV_fragment_program
114 #include "simple_list.h"
117 #include "texcompress.h"
118 #include "teximage.h"
120 #include "texstate.h"
125 #include "math/m_translate.h"
126 #include "math/m_matrix.h"
127 #include "math/m_xform.h"
128 #include "math/mathmod.h"
130 #include "shaderobjects.h"
133 #include "sparc/sparc.h"
137 int MESA_VERBOSE
= 0;
140 #ifndef MESA_DEBUG_FLAGS
141 int MESA_DEBUG_FLAGS
= 0;
145 /* ubyte -> float conversion */
146 GLfloat _mesa_ubyte_to_float_color_tab
[256];
149 free_shared_state( GLcontext
*ctx
, struct gl_shared_state
*ss
);
152 /**********************************************************************/
153 /** \name OpenGL SI-style interface (new in Mesa 3.5)
156 * \note Most of these functions are never called in the Mesa subset.
162 * Destroy context callback.
165 * \return GL_TRUE on success, or GL_FALSE on failure.
168 * Called by window system/device driver (via __GLexports::destroyCurrent) when
169 * the rendering context is to be destroyed.
172 * Frees the context data and the context structure.
175 _mesa_destroyContext(__GLcontext
*gc
)
178 _mesa_free_context_data(gc
);
185 * Unbind context callback.
188 * \return GL_TRUE on success, or GL_FALSE on failure.
191 * Called by window system/device driver (via __GLexports::loseCurrent)
192 * when the rendering context is made non-current.
198 _mesa_loseCurrent(__GLcontext
*gc
)
200 /* XXX unbind context from thread */
206 * Bind context callback.
209 * \return GL_TRUE on success, or GL_FALSE on failure.
212 * Called by window system/device driver (via __GLexports::makeCurrent)
213 * when the rendering context is made current.
219 _mesa_makeCurrent(__GLcontext
*gc
)
221 /* XXX bind context to thread */
227 * Share context callback.
230 * \param gcShare shared context.
231 * \return GL_TRUE on success, or GL_FALSE on failure.
234 * Called by window system/device driver (via __GLexports::shareContext)
237 * Update the shared context reference count, gl_shared_state::RefCount.
240 _mesa_shareContext(__GLcontext
*gc
, __GLcontext
*gcShare
)
242 if (gc
&& gcShare
&& gc
->Shared
&& gcShare
->Shared
) {
243 gc
->Shared
->RefCount
--;
244 if (gc
->Shared
->RefCount
== 0) {
245 free_shared_state(gc
, gc
->Shared
);
247 gc
->Shared
= gcShare
->Shared
;
248 gc
->Shared
->RefCount
++;
259 * Copy context callback.
262 _mesa_copyContext(__GLcontext
*dst
, const __GLcontext
*src
, GLuint mask
)
265 _mesa_copy_context( src
, dst
, mask
);
276 _mesa_forceCurrent(__GLcontext
*gc
)
283 * Windows/buffer resizing notification callback.
285 * \param gc GL context.
286 * \return GL_TRUE on success, or GL_FALSE on failure.
289 _mesa_notifyResize(__GLcontext
*gc
)
292 GLuint width
, height
;
293 __GLdrawablePrivate
*d
= gc
->imports
.getDrawablePrivate(gc
);
294 if (!d
|| !d
->getDrawableSize
)
296 d
->getDrawableSize( d
, &x
, &y
, &width
, &height
);
297 /* update viewport, resize software buffers, etc. */
302 * Window/buffer destruction notification callback.
304 * \param gc GL context.
306 * Called when the context's window/buffer is going to be destroyed.
311 _mesa_notifyDestroy(__GLcontext
*gc
)
313 /* Unbind from it. */
318 * Swap buffers notification callback.
320 * \param gc GL context.
322 * Called by window system just before swapping buffers.
323 * We have to finish any pending rendering.
326 _mesa_notifySwapBuffers(__GLcontext
*gc
)
328 FLUSH_VERTICES( gc
, 0 );
332 struct __GLdispatchStateRec
*
333 _mesa_dispatchExec(__GLcontext
*gc
)
341 _mesa_beginDispatchOverride(__GLcontext
*gc
)
348 _mesa_endDispatchOverride(__GLcontext
*gc
)
357 * The window system will call these functions when it needs Mesa to do
360 * \note Device drivers should override these functions! For example,
361 * the Xlib driver should plug in the XMesa*-style functions into this
362 * structure. The XMesa-style functions should then call the _mesa_*
363 * version of these functions. This is an approximation to OO design
364 * (inheritance and virtual functions).
373 _mesa_init_default_exports(__GLexports
*exports
)
376 exports
->destroyContext
= _mesa_destroyContext
;
377 exports
->loseCurrent
= _mesa_loseCurrent
;
378 exports
->makeCurrent
= _mesa_makeCurrent
;
379 exports
->shareContext
= _mesa_shareContext
;
380 exports
->copyContext
= _mesa_copyContext
;
381 exports
->forceCurrent
= _mesa_forceCurrent
;
382 exports
->notifyResize
= _mesa_notifyResize
;
383 exports
->notifyDestroy
= _mesa_notifyDestroy
;
384 exports
->notifySwapBuffers
= _mesa_notifySwapBuffers
;
385 exports
->dispatchExec
= _mesa_dispatchExec
;
386 exports
->beginDispatchOverride
= _mesa_beginDispatchOverride
;
387 exports
->endDispatchOverride
= _mesa_endDispatchOverride
;
394 * Exported OpenGL SI interface.
397 __glCoreCreateContext(__GLimports
*imports
, __GLcontextModes
*modes
)
401 ctx
= (GLcontext
*) (*imports
->calloc
)(NULL
, 1, sizeof(GLcontext
));
406 /* XXX doesn't work at this time */
407 _mesa_initialize_context(ctx
, modes
, NULL
, NULL
, NULL
);
408 ctx
->imports
= *imports
;
414 * Exported OpenGL SI interface.
417 __glCoreNopDispatch(void)
421 __gl_dispatch
= __glNopDispatchState
;
424 _glapi_set_dispatch(NULL
);
431 /**********************************************************************/
432 /** \name GL Visual allocation/destruction */
433 /**********************************************************************/
437 * Allocates a GLvisual structure and initializes it via
438 * _mesa_initialize_visual().
440 * \param rgbFlag GL_TRUE for RGB(A) mode, GL_FALSE for Color Index mode.
441 * \param dbFlag double buffering
442 * \param stereoFlag stereo buffer
443 * \param depthBits requested bits per depth buffer value. Any value in [0, 32]
444 * is acceptable but the actual depth type will be GLushort or GLuint as
446 * \param stencilBits requested minimum bits per stencil buffer value
447 * \param accumRedBits, accumGreenBits, accumBlueBits, accumAlphaBits number of bits per color component in accum buffer.
448 * \param indexBits number of bits per pixel if \p rgbFlag is GL_FALSE
449 * \param redBits number of bits per color component in frame buffer for RGB(A)
450 * mode. We always use 8 in core Mesa though.
451 * \param greenBits same as above.
452 * \param blueBits same as above.
453 * \param alphaBits same as above.
454 * \param numSamples not really used.
456 * \return pointer to new GLvisual or NULL if requested parameters can't be
459 * \note Need to add params for level and numAuxBuffers (at least)
462 _mesa_create_visual( GLboolean rgbFlag
,
464 GLboolean stereoFlag
,
473 GLint accumGreenBits
,
475 GLint accumAlphaBits
,
478 GLvisual
*vis
= (GLvisual
*) CALLOC( sizeof(GLvisual
) );
480 if (!_mesa_initialize_visual(vis
, rgbFlag
, dbFlag
, stereoFlag
,
481 redBits
, greenBits
, blueBits
, alphaBits
,
482 indexBits
, depthBits
, stencilBits
,
483 accumRedBits
, accumGreenBits
,
484 accumBlueBits
, accumAlphaBits
,
494 * Makes some sanity checks and fills in the fields of the
495 * GLvisual structure with the given parameters.
497 * \return GL_TRUE on success, or GL_FALSE on failure.
499 * \sa _mesa_create_visual() above for the parameter description.
501 * \note Need to add params for level and numAuxBuffers (at least)
504 _mesa_initialize_visual( GLvisual
*vis
,
507 GLboolean stereoFlag
,
516 GLint accumGreenBits
,
518 GLint accumAlphaBits
,
523 /* This is to catch bad values from device drivers not updated for
524 * Mesa 3.3. Some device drivers just passed 1. That's a REALLY
525 * bad value now (a 1-bit depth buffer!?!).
527 assert(depthBits
== 0 || depthBits
> 1);
529 if (depthBits
< 0 || depthBits
> 32) {
532 if (stencilBits
< 0 || stencilBits
> (GLint
) (8 * sizeof(GLstencil
))) {
535 if (accumRedBits
< 0 || accumRedBits
> (GLint
) (8 * sizeof(GLaccum
))) {
538 if (accumGreenBits
< 0 || accumGreenBits
> (GLint
) (8 * sizeof(GLaccum
))) {
541 if (accumBlueBits
< 0 || accumBlueBits
> (GLint
) (8 * sizeof(GLaccum
))) {
544 if (accumAlphaBits
< 0 || accumAlphaBits
> (GLint
) (8 * sizeof(GLaccum
))) {
548 vis
->rgbMode
= rgbFlag
;
549 vis
->doubleBufferMode
= dbFlag
;
550 vis
->stereoMode
= stereoFlag
;
552 vis
->redBits
= redBits
;
553 vis
->greenBits
= greenBits
;
554 vis
->blueBits
= blueBits
;
555 vis
->alphaBits
= alphaBits
;
557 vis
->indexBits
= indexBits
;
558 vis
->depthBits
= depthBits
;
559 vis
->accumRedBits
= (accumRedBits
> 0) ? (8 * sizeof(GLaccum
)) : 0;
560 vis
->accumGreenBits
= (accumGreenBits
> 0) ? (8 * sizeof(GLaccum
)) : 0;
561 vis
->accumBlueBits
= (accumBlueBits
> 0) ? (8 * sizeof(GLaccum
)) : 0;
562 vis
->accumAlphaBits
= (accumAlphaBits
> 0) ? (8 * sizeof(GLaccum
)) : 0;
563 vis
->stencilBits
= (stencilBits
> 0) ? (8 * sizeof(GLstencil
)) : 0;
565 vis
->haveAccumBuffer
= accumRedBits
> 0;
566 vis
->haveDepthBuffer
= depthBits
> 0;
567 vis
->haveStencilBuffer
= stencilBits
> 0;
569 vis
->numAuxBuffers
= 0;
572 vis
->samples
= numSamples
;
579 * Destroy a visual and free its memory.
583 * Frees the visual structure.
586 _mesa_destroy_visual( GLvisual
*vis
)
594 /**********************************************************************/
595 /** \name GL Framebuffer allocation/destruction */
596 /**********************************************************************/
600 * Allocate a GLframebuffer structure and initializes it via
601 * _mesa_initialize_framebuffer().
603 * A GLframebuffer is a structure which encapsulates the depth, stencil and
604 * accum buffers and related parameters.
606 * Note that the actual depth/stencil/accum/etc buffers are not allocated
607 * at this time. It's up to the device driver and/or swrast module to
608 * allocate them as needed.
610 * \param visual a GLvisual pointer (we copy the struct contents)
611 * \param softwareDepth create/use a software depth buffer?
612 * \param softwareStencil create/use a software stencil buffer?
613 * \param softwareAccum create/use a software accum buffer?
614 * \param softwareAlpha create/use a software alpha buffer?
616 * \return pointer to new GLframebuffer struct or NULL if error.
618 * \note Need to add softwareAuxBuffers parameter.
621 _mesa_create_framebuffer( const GLvisual
*visual
,
622 GLboolean softwareDepth
,
623 GLboolean softwareStencil
,
624 GLboolean softwareAccum
,
625 GLboolean softwareAlpha
)
627 GLframebuffer
*buffer
= CALLOC_STRUCT(gl_frame_buffer
);
630 _mesa_initialize_framebuffer(buffer
, visual
,
631 softwareDepth
, softwareStencil
,
632 softwareAccum
, softwareAlpha
);
639 * Makes some sanity checks and fills in the fields of the
640 * GLframebuffer structure with the given parameters.
642 * \sa _mesa_create_framebuffer() above for the parameter description.
645 _mesa_initialize_framebuffer( GLframebuffer
*buffer
,
646 const GLvisual
*visual
,
647 GLboolean softwareDepth
,
648 GLboolean softwareStencil
,
649 GLboolean softwareAccum
,
650 GLboolean softwareAlpha
)
652 GLboolean softwareAux
= GL_FALSE
;
656 _mesa_bzero(buffer
, sizeof(GLframebuffer
));
659 if (softwareDepth
) {
660 assert(visual
->depthBits
> 0);
662 if (softwareStencil
) {
663 assert(visual
->stencilBits
> 0);
666 assert(visual
->rgbMode
);
667 assert(visual
->accumRedBits
> 0);
668 assert(visual
->accumGreenBits
> 0);
669 assert(visual
->accumBlueBits
> 0);
672 assert(visual
->rgbMode
);
673 assert(visual
->alphaBits
> 0);
676 buffer
->Visual
= *visual
;
677 buffer
->UseSoftwareDepthBuffer
= softwareDepth
;
678 buffer
->UseSoftwareStencilBuffer
= softwareStencil
;
679 buffer
->UseSoftwareAccumBuffer
= softwareAccum
;
680 buffer
->UseSoftwareAlphaBuffers
= softwareAlpha
;
681 buffer
->UseSoftwareAuxBuffers
= softwareAux
;
686 * Free a framebuffer struct and its buffers.
688 * Calls _mesa_free_framebuffer_data() and frees the structure.
691 _mesa_destroy_framebuffer( GLframebuffer
*buffer
)
694 _mesa_free_framebuffer_data(buffer
);
701 * Free the data hanging off of \p buffer, but not \p buffer itself.
703 * \param buffer framebuffer.
705 * Frees all the buffers associated with the structure.
708 _mesa_free_framebuffer_data( GLframebuffer
*buffer
)
713 if (buffer
->UseSoftwareDepthBuffer
&& buffer
->DepthBuffer
) {
714 MESA_PBUFFER_FREE( buffer
->DepthBuffer
);
715 buffer
->DepthBuffer
= NULL
;
717 if (buffer
->UseSoftwareAccumBuffer
&& buffer
->Accum
) {
718 MESA_PBUFFER_FREE( buffer
->Accum
);
719 buffer
->Accum
= NULL
;
721 if (buffer
->UseSoftwareStencilBuffer
&& buffer
->Stencil
) {
722 MESA_PBUFFER_FREE( buffer
->Stencil
);
723 buffer
->Stencil
= NULL
;
725 if (buffer
->UseSoftwareAlphaBuffers
){
726 if (buffer
->FrontLeftAlpha
) {
727 MESA_PBUFFER_FREE( buffer
->FrontLeftAlpha
);
728 buffer
->FrontLeftAlpha
= NULL
;
730 if (buffer
->BackLeftAlpha
) {
731 MESA_PBUFFER_FREE( buffer
->BackLeftAlpha
);
732 buffer
->BackLeftAlpha
= NULL
;
734 if (buffer
->FrontRightAlpha
) {
735 MESA_PBUFFER_FREE( buffer
->FrontRightAlpha
);
736 buffer
->FrontRightAlpha
= NULL
;
738 if (buffer
->BackRightAlpha
) {
739 MESA_PBUFFER_FREE( buffer
->BackRightAlpha
);
740 buffer
->BackRightAlpha
= NULL
;
748 /**********************************************************************/
749 /** \name Context allocation, initialization, destroying
751 * The purpose of the most initialization functions here is to provide the
752 * default state values according to the OpenGL specification.
754 /**********************************************************************/
758 * One-time initialization mutex lock.
760 * \sa Used by one_time_init().
762 _glthread_DECLARE_STATIC_MUTEX(OneTimeLock
);
765 * Calls all the various one-time-init functions in Mesa.
767 * While holding a global mutex lock, calls several initialization functions,
768 * and sets the glapi callbacks if the \c MESA_DEBUG environment variable is
771 * \sa _mesa_init_lists(), _math_init().
774 one_time_init( GLcontext
*ctx
)
776 static GLboolean alreadyCalled
= GL_FALSE
;
778 _glthread_LOCK_MUTEX(OneTimeLock
);
779 if (!alreadyCalled
) {
782 /* do some implementation tests */
783 assert( sizeof(GLbyte
) == 1 );
784 assert( sizeof(GLubyte
) == 1 );
785 assert( sizeof(GLshort
) == 2 );
786 assert( sizeof(GLushort
) == 2 );
787 assert( sizeof(GLint
) == 4 );
788 assert( sizeof(GLuint
) == 4 );
795 for (i
= 0; i
< 256; i
++) {
796 _mesa_ubyte_to_float_color_tab
[i
] = (float) i
/ 255.0F
;
801 _mesa_init_sparc_glapi_relocs();
803 if (_mesa_getenv("MESA_DEBUG")) {
804 _glapi_noop_enable_warnings(GL_TRUE
);
805 #ifndef GLX_DIRECT_RENDERING
806 /* libGL from before 2002/06/28 don't have this function. Someday,
807 * when newer libGL libs are common, remove the #ifdef test. This
808 * only serves to print warnings when calling undefined GL functions.
810 _glapi_set_warning_func( (_glapi_warning_func
) _mesa_warning
);
814 _glapi_noop_enable_warnings(GL_FALSE
);
817 #if defined(DEBUG) && defined(__DATE__) && defined(__TIME__)
818 _mesa_debug(ctx
, "Mesa DEBUG build %s %s\n", __DATE__
, __TIME__
);
821 alreadyCalled
= GL_TRUE
;
823 _glthread_UNLOCK_MUTEX(OneTimeLock
);
828 * Allocate and initialize a shared context state structure.
829 * Initializes the display list, texture objects and vertex programs hash
830 * tables, allocates the texture objects. If it runs out of memory, frees
831 * everything already allocated before returning NULL.
833 * \return pointer to a gl_shared_state structure on success, or NULL on
837 alloc_shared_state( GLcontext
*ctx
)
839 struct gl_shared_state
*ss
= CALLOC_STRUCT(gl_shared_state
);
845 _glthread_INIT_MUTEX(ss
->Mutex
);
847 ss
->DisplayList
= _mesa_NewHashTable();
848 ss
->TexObjects
= _mesa_NewHashTable();
849 #if FEATURE_NV_vertex_program || FEATURE_NV_fragment_program
850 ss
->Programs
= _mesa_NewHashTable();
853 #if FEATURE_ARB_vertex_program
854 ss
->DefaultVertexProgram
= ctx
->Driver
.NewProgram(ctx
, GL_VERTEX_PROGRAM_ARB
, 0);
855 if (!ss
->DefaultVertexProgram
)
858 #if FEATURE_ARB_fragment_program
859 ss
->DefaultFragmentProgram
= ctx
->Driver
.NewProgram(ctx
, GL_FRAGMENT_PROGRAM_ARB
, 0);
860 if (!ss
->DefaultFragmentProgram
)
863 #if FEATURE_ATI_fragment_shader
864 ss
->DefaultFragmentShader
= ctx
->Driver
.NewProgram(ctx
, GL_FRAGMENT_SHADER_ATI
, 0);
865 if (!ss
->DefaultFragmentShader
)
869 ss
->BufferObjects
= _mesa_NewHashTable();
871 ss
->GL2Objects
= _mesa_NewHashTable ();
873 ss
->Default1D
= (*ctx
->Driver
.NewTextureObject
)(ctx
, 0, GL_TEXTURE_1D
);
877 ss
->Default2D
= (*ctx
->Driver
.NewTextureObject
)(ctx
, 0, GL_TEXTURE_2D
);
881 ss
->Default3D
= (*ctx
->Driver
.NewTextureObject
)(ctx
, 0, GL_TEXTURE_3D
);
885 ss
->DefaultCubeMap
= (*ctx
->Driver
.NewTextureObject
)(ctx
, 0, GL_TEXTURE_CUBE_MAP_ARB
);
886 if (!ss
->DefaultCubeMap
)
889 ss
->DefaultRect
= (*ctx
->Driver
.NewTextureObject
)(ctx
, 0, GL_TEXTURE_RECTANGLE_NV
);
890 if (!ss
->DefaultRect
)
893 /* Effectively bind the default textures to all texture units */
894 ss
->Default1D
->RefCount
+= MAX_TEXTURE_IMAGE_UNITS
;
895 ss
->Default2D
->RefCount
+= MAX_TEXTURE_IMAGE_UNITS
;
896 ss
->Default3D
->RefCount
+= MAX_TEXTURE_IMAGE_UNITS
;
897 ss
->DefaultCubeMap
->RefCount
+= MAX_TEXTURE_IMAGE_UNITS
;
898 ss
->DefaultRect
->RefCount
+= MAX_TEXTURE_IMAGE_UNITS
;
900 #if FEATURE_EXT_framebuffer_object
901 ss
->FrameBuffers
= _mesa_NewHashTable();
902 if (!ss
->FrameBuffers
)
904 ss
->RenderBuffers
= _mesa_NewHashTable();
905 if (!ss
->RenderBuffers
)
913 /* Ran out of memory at some point. Free everything and return NULL */
915 _mesa_DeleteHashTable(ss
->DisplayList
);
917 _mesa_DeleteHashTable(ss
->TexObjects
);
918 #if FEATURE_NV_vertex_program
920 _mesa_DeleteHashTable(ss
->Programs
);
922 #if FEATURE_ARB_vertex_program
923 if (ss
->DefaultVertexProgram
)
924 ctx
->Driver
.DeleteProgram(ctx
, ss
->DefaultVertexProgram
);
926 #if FEATURE_ARB_fragment_program
927 if (ss
->DefaultFragmentProgram
)
928 ctx
->Driver
.DeleteProgram(ctx
, ss
->DefaultFragmentProgram
);
930 #if FEATURE_ATI_fragment_shader
931 if (ss
->DefaultFragmentShader
)
932 ctx
->Driver
.DeleteProgram(ctx
, ss
->DefaultFragmentShader
);
934 #if FEATURE_ARB_vertex_buffer_object
935 if (ss
->BufferObjects
)
936 _mesa_DeleteHashTable(ss
->BufferObjects
);
940 _mesa_DeleteHashTable (ss
->GL2Objects
);
942 #if FEATURE_EXT_framebuffer_object
943 if (ss
->FrameBuffers
)
944 _mesa_DeleteHashTable(ss
->FrameBuffers
);
945 if (ss
->RenderBuffers
)
946 _mesa_DeleteHashTable(ss
->RenderBuffers
);
950 (*ctx
->Driver
.DeleteTexture
)(ctx
, ss
->Default1D
);
952 (*ctx
->Driver
.DeleteTexture
)(ctx
, ss
->Default2D
);
954 (*ctx
->Driver
.DeleteTexture
)(ctx
, ss
->Default3D
);
955 if (ss
->DefaultCubeMap
)
956 (*ctx
->Driver
.DeleteTexture
)(ctx
, ss
->DefaultCubeMap
);
958 (*ctx
->Driver
.DeleteTexture
)(ctx
, ss
->DefaultRect
);
965 * Deallocate a shared state context and all children structures.
967 * \param ctx GL context.
968 * \param ss shared state pointer.
970 * Frees the display lists, the texture objects (calling the driver texture
971 * deletion callback to free its private data) and the vertex programs, as well
972 * as their hash tables.
974 * \sa alloc_shared_state().
977 free_shared_state( GLcontext
*ctx
, struct gl_shared_state
*ss
)
979 /* Free display lists */
981 GLuint list
= _mesa_HashFirstEntry(ss
->DisplayList
);
983 _mesa_destroy_list(ctx
, list
);
989 _mesa_DeleteHashTable(ss
->DisplayList
);
991 /* Free texture objects */
992 ASSERT(ctx
->Driver
.DeleteTexture
);
993 /* the default textures */
994 (*ctx
->Driver
.DeleteTexture
)(ctx
, ss
->Default1D
);
995 (*ctx
->Driver
.DeleteTexture
)(ctx
, ss
->Default2D
);
996 (*ctx
->Driver
.DeleteTexture
)(ctx
, ss
->Default3D
);
997 (*ctx
->Driver
.DeleteTexture
)(ctx
, ss
->DefaultCubeMap
);
998 (*ctx
->Driver
.DeleteTexture
)(ctx
, ss
->DefaultRect
);
999 /* all other textures */
1001 GLuint texName
= _mesa_HashFirstEntry(ss
->TexObjects
);
1003 struct gl_texture_object
*texObj
= (struct gl_texture_object
*)
1004 _mesa_HashLookup(ss
->TexObjects
, texName
);
1006 (*ctx
->Driver
.DeleteTexture
)(ctx
, texObj
);
1007 _mesa_HashRemove(ss
->TexObjects
, texName
);
1013 _mesa_DeleteHashTable(ss
->TexObjects
);
1015 #if FEATURE_NV_vertex_program
1016 /* Free vertex programs */
1018 GLuint prog
= _mesa_HashFirstEntry(ss
->Programs
);
1020 struct program
*p
= (struct program
*) _mesa_HashLookup(ss
->Programs
,
1023 ctx
->Driver
.DeleteProgram(ctx
, p
);
1024 _mesa_HashRemove(ss
->Programs
, prog
);
1030 _mesa_DeleteHashTable(ss
->Programs
);
1032 #if FEATURE_ARB_vertex_program
1033 _mesa_delete_program(ctx
, ss
->DefaultVertexProgram
);
1035 #if FEATURE_ARB_fragment_program
1036 _mesa_delete_program(ctx
, ss
->DefaultFragmentProgram
);
1038 #if FEATURE_ATI_fragment_shader
1039 _mesa_delete_program(ctx
, ss
->DefaultFragmentShader
);
1042 #if FEATURE_ARB_vertex_buffer_object
1043 _mesa_DeleteHashTable(ss
->BufferObjects
);
1046 _mesa_DeleteHashTable (ss
->GL2Objects
);
1048 #if FEATURE_EXT_framebuffer_object
1049 _mesa_DeleteHashTable(ss
->FrameBuffers
);
1050 _mesa_DeleteHashTable(ss
->RenderBuffers
);
1053 _glthread_DESTROY_MUTEX(ss
->Mutex
);
1060 * Initialize fields of gl_current_attrib (aka ctx->Current.*)
1063 _mesa_init_current( GLcontext
*ctx
)
1068 for (i
= 0; i
< VERT_ATTRIB_MAX
; i
++) {
1069 ASSIGN_4V( ctx
->Current
.Attrib
[i
], 0.0, 0.0, 0.0, 1.0 );
1071 /* special cases: */
1072 ASSIGN_4V( ctx
->Current
.Attrib
[VERT_ATTRIB_WEIGHT
], 1.0, 0.0, 0.0, 1.0 );
1073 ASSIGN_4V( ctx
->Current
.Attrib
[VERT_ATTRIB_NORMAL
], 0.0, 0.0, 1.0, 1.0 );
1074 ASSIGN_4V( ctx
->Current
.Attrib
[VERT_ATTRIB_COLOR0
], 1.0, 1.0, 1.0, 1.0 );
1075 ASSIGN_4V( ctx
->Current
.Attrib
[VERT_ATTRIB_COLOR1
], 0.0, 0.0, 0.0, 1.0 );
1076 ASSIGN_4V( ctx
->Current
.Attrib
[VERT_ATTRIB_FOG
], 0.0, 0.0, 0.0, 0.0 );
1078 ctx
->Current
.Index
= 1;
1079 ctx
->Current
.EdgeFlag
= GL_TRUE
;
1084 * Initialize fields of gl_constants (aka ctx->Const.*).
1085 * Use defaults from config.h. The device drivers will often override
1086 * some of these values (such as number of texture units).
1089 _mesa_init_constants( GLcontext
*ctx
)
1093 assert(MAX_TEXTURE_LEVELS
>= MAX_3D_TEXTURE_LEVELS
);
1094 assert(MAX_TEXTURE_LEVELS
>= MAX_CUBE_TEXTURE_LEVELS
);
1096 /* Constants, may be overriden (usually only reduced) by device drivers */
1097 ctx
->Const
.MaxTextureLevels
= MAX_TEXTURE_LEVELS
;
1098 ctx
->Const
.Max3DTextureLevels
= MAX_3D_TEXTURE_LEVELS
;
1099 ctx
->Const
.MaxCubeTextureLevels
= MAX_CUBE_TEXTURE_LEVELS
;
1100 ctx
->Const
.MaxTextureRectSize
= MAX_TEXTURE_RECT_SIZE
;
1101 ctx
->Const
.MaxTextureUnits
= MAX_TEXTURE_UNITS
;
1102 ctx
->Const
.MaxTextureCoordUnits
= MAX_TEXTURE_COORD_UNITS
;
1103 ctx
->Const
.MaxTextureImageUnits
= MAX_TEXTURE_IMAGE_UNITS
;
1104 ctx
->Const
.MaxTextureMaxAnisotropy
= MAX_TEXTURE_MAX_ANISOTROPY
;
1105 ctx
->Const
.MaxTextureLodBias
= MAX_TEXTURE_LOD_BIAS
;
1106 ctx
->Const
.MaxArrayLockSize
= MAX_ARRAY_LOCK_SIZE
;
1107 ctx
->Const
.SubPixelBits
= SUB_PIXEL_BITS
;
1108 ctx
->Const
.MinPointSize
= MIN_POINT_SIZE
;
1109 ctx
->Const
.MaxPointSize
= MAX_POINT_SIZE
;
1110 ctx
->Const
.MinPointSizeAA
= MIN_POINT_SIZE
;
1111 ctx
->Const
.MaxPointSizeAA
= MAX_POINT_SIZE
;
1112 ctx
->Const
.PointSizeGranularity
= (GLfloat
) POINT_SIZE_GRANULARITY
;
1113 ctx
->Const
.MinLineWidth
= MIN_LINE_WIDTH
;
1114 ctx
->Const
.MaxLineWidth
= MAX_LINE_WIDTH
;
1115 ctx
->Const
.MinLineWidthAA
= MIN_LINE_WIDTH
;
1116 ctx
->Const
.MaxLineWidthAA
= MAX_LINE_WIDTH
;
1117 ctx
->Const
.LineWidthGranularity
= (GLfloat
) LINE_WIDTH_GRANULARITY
;
1118 ctx
->Const
.MaxColorTableSize
= MAX_COLOR_TABLE_SIZE
;
1119 ctx
->Const
.MaxConvolutionWidth
= MAX_CONVOLUTION_WIDTH
;
1120 ctx
->Const
.MaxConvolutionHeight
= MAX_CONVOLUTION_HEIGHT
;
1121 ctx
->Const
.MaxClipPlanes
= MAX_CLIP_PLANES
;
1122 ctx
->Const
.MaxLights
= MAX_LIGHTS
;
1123 ctx
->Const
.MaxShininess
= 128.0;
1124 ctx
->Const
.MaxSpotExponent
= 128.0;
1125 ctx
->Const
.MaxViewportWidth
= MAX_WIDTH
;
1126 ctx
->Const
.MaxViewportHeight
= MAX_HEIGHT
;
1127 #if FEATURE_ARB_vertex_program
1128 ctx
->Const
.MaxVertexProgramInstructions
= MAX_NV_VERTEX_PROGRAM_INSTRUCTIONS
;
1129 ctx
->Const
.MaxVertexProgramAttribs
= MAX_NV_VERTEX_PROGRAM_INPUTS
;
1130 ctx
->Const
.MaxVertexProgramTemps
= MAX_NV_VERTEX_PROGRAM_TEMPS
;
1131 ctx
->Const
.MaxVertexProgramLocalParams
= MAX_NV_VERTEX_PROGRAM_PARAMS
;
1132 ctx
->Const
.MaxVertexProgramEnvParams
= MAX_NV_VERTEX_PROGRAM_PARAMS
;/*XXX*/
1133 ctx
->Const
.MaxVertexProgramAddressRegs
= MAX_VERTEX_PROGRAM_ADDRESS_REGS
;
1135 #if FEATURE_ARB_fragment_program
1136 ctx
->Const
.MaxFragmentProgramInstructions
= MAX_NV_FRAGMENT_PROGRAM_INSTRUCTIONS
;
1137 ctx
->Const
.MaxFragmentProgramAttribs
= MAX_NV_FRAGMENT_PROGRAM_INPUTS
;
1138 ctx
->Const
.MaxFragmentProgramTemps
= MAX_NV_FRAGMENT_PROGRAM_TEMPS
;
1139 ctx
->Const
.MaxFragmentProgramLocalParams
= MAX_NV_FRAGMENT_PROGRAM_PARAMS
;
1140 ctx
->Const
.MaxFragmentProgramEnvParams
= MAX_NV_FRAGMENT_PROGRAM_PARAMS
;/*XXX*/
1141 ctx
->Const
.MaxFragmentProgramAddressRegs
= MAX_FRAGMENT_PROGRAM_ADDRESS_REGS
;
1142 ctx
->Const
.MaxFragmentProgramAluInstructions
= MAX_FRAGMENT_PROGRAM_ALU_INSTRUCTIONS
;
1143 ctx
->Const
.MaxFragmentProgramTexInstructions
= MAX_FRAGMENT_PROGRAM_TEX_INSTRUCTIONS
;
1144 ctx
->Const
.MaxFragmentProgramTexIndirections
= MAX_FRAGMENT_PROGRAM_TEX_INDIRECTIONS
;
1147 ctx
->Const
.MaxProgramMatrices
= MAX_PROGRAM_MATRICES
;
1148 ctx
->Const
.MaxProgramMatrixStackDepth
= MAX_PROGRAM_MATRIX_STACK_DEPTH
;
1150 /* If we're running in the X server, do bounds checking to prevent
1151 * segfaults and server crashes!
1153 #if defined(XFree86LOADER) && defined(IN_MODULE)
1154 ctx
->Const
.CheckArrayBounds
= GL_TRUE
;
1156 ctx
->Const
.CheckArrayBounds
= GL_FALSE
;
1159 ctx
->Const
.MaxDrawBuffers
= MAX_DRAW_BUFFERS
;
1161 ctx
->Const
.ColorReadFormat
= GL_RGBA
;
1162 ctx
->Const
.ColorReadType
= GL_UNSIGNED_BYTE
;
1165 ASSERT(ctx
->Const
.MaxTextureUnits
== MAX2(ctx
->Const
.MaxTextureImageUnits
, ctx
->Const
.MaxTextureCoordUnits
));
1170 * Initialize the attribute groups in a GL context.
1172 * \param ctx GL context.
1174 * Initializes all the attributes, calling the respective <tt>init*</tt>
1175 * functions for the more complex data structures.
1178 init_attrib_groups( GLcontext
*ctx
)
1183 _mesa_init_constants( ctx
);
1186 _mesa_init_extensions( ctx
);
1188 /* Attribute Groups */
1189 _mesa_init_accum( ctx
);
1190 _mesa_init_attrib( ctx
);
1191 _mesa_init_buffers( ctx
);
1192 _mesa_init_buffer_objects( ctx
);
1193 _mesa_init_color( ctx
);
1194 _mesa_init_colortables( ctx
);
1195 _mesa_init_current( ctx
);
1196 _mesa_init_depth( ctx
);
1197 _mesa_init_debug( ctx
);
1198 _mesa_init_display_list( ctx
);
1199 _mesa_init_eval( ctx
);
1200 _mesa_init_feedback( ctx
);
1201 _mesa_init_fog( ctx
);
1202 _mesa_init_histogram( ctx
);
1203 _mesa_init_hint( ctx
);
1204 _mesa_init_line( ctx
);
1205 _mesa_init_lighting( ctx
);
1206 _mesa_init_matrix( ctx
);
1207 _mesa_init_occlude( ctx
);
1208 _mesa_init_pixel( ctx
);
1209 _mesa_init_point( ctx
);
1210 _mesa_init_polygon( ctx
);
1211 _mesa_init_program( ctx
);
1212 _mesa_init_rastpos( ctx
);
1213 _mesa_init_shaderobjects (ctx
);
1214 _mesa_init_stencil( ctx
);
1215 _mesa_init_transform( ctx
);
1216 _mesa_init_varray( ctx
);
1217 _mesa_init_viewport( ctx
);
1219 if (!_mesa_init_texture( ctx
))
1222 _mesa_init_texture_s3tc( ctx
);
1223 _mesa_init_texture_fxt1( ctx
);
1226 ctx
->NewState
= _NEW_ALL
;
1227 ctx
->ErrorValue
= (GLenum
) GL_NO_ERROR
;
1229 #if CHAN_TYPE == GL_FLOAT
1230 ctx
->ClampFragmentColors
= GL_FALSE
; /* XXX temporary */
1232 ctx
->ClampFragmentColors
= GL_TRUE
;
1234 ctx
->ClampVertexColors
= GL_TRUE
;
1241 * If the DRI libGL.so library is old, it may not have the entrypoints for
1242 * some recent OpenGL extensions. Dynamically add them now.
1243 * If we're building stand-alone Mesa where libGL.so has both the dispatcher
1244 * and driver code, this won't be an issue (and calling this function won't
1248 add_newer_entrypoints(void)
1251 static const struct {
1252 const char * const name
;
1255 newer_entrypoints
[] = {
1256 /* GL_ARB_window_pos aliases with GL_MESA_window_pos */
1257 { "glWindowPos2dARB", 513 },
1258 { "glWindowPos2dvARB", 514 },
1259 { "glWindowPos2fARB", 515 },
1260 { "glWindowPos2fvARB", 516 },
1261 { "glWindowPos2iARB", 517 },
1262 { "glWindowPos2ivARB", 518 },
1263 { "glWindowPos2sARB", 519 },
1264 { "glWindowPos2svARB", 520 },
1265 { "glWindowPos3dARB", 521 },
1266 { "glWindowPos3dvARB", 522 },
1267 { "glWindowPos3fARB", 523 },
1268 { "glWindowPos3fvARB", 524 },
1269 { "glWindowPos3iARB", 525 },
1270 { "glWindowPos3ivARB", 526 },
1271 { "glWindowPos3sARB", 527 },
1272 { "glWindowPos3svARB", 528 },
1273 #if FEATURE_NV_vertex_program
1274 { "glAreProgramsResidentNV", 578 },
1275 { "glBindProgramNV", 579 },
1276 { "glDeleteProgramsNV", 580 },
1277 { "glExecuteProgramNV", 581 },
1278 { "glGenProgramsNV", 582 },
1279 { "glGetProgramParameterdvNV", 583 },
1280 { "glGetProgramParameterfvNV", 584 },
1281 { "glGetProgramivNV", 585 },
1282 { "glGetProgramStringNV", 586 },
1283 { "glGetTrackMatrixivNV", 587 },
1284 { "glGetVertexAttribdvNV", 588 },
1285 { "glGetVertexAttribfvNV", 589 },
1286 { "glGetVertexAttribivNV", 590 },
1287 { "glGetVertexAttribPointervNV", 591 },
1288 { "glIsProgramNV", 592 },
1289 { "glLoadProgramNV", 593 },
1290 { "glProgramParameter4dNV", 594 },
1291 { "glProgramParameter4dvNV", 595 },
1292 { "glProgramParameter4fNV", 596 },
1293 { "glProgramParameter4fvNV", 597 },
1294 { "glProgramParameters4dvNV", 598 },
1295 { "glProgramParameters4fvNV", 599 },
1296 { "glRequestResidentProgramsNV", 600 },
1297 { "glTrackMatrixNV", 601 },
1298 { "glVertexAttribPointerNV", 602 },
1299 { "glVertexAttrib1dNV", 603 },
1300 { "glVertexAttrib1dvNV", 604 },
1301 { "glVertexAttrib1fNV", 605 },
1302 { "glVertexAttrib1fvNV", 606 },
1303 { "glVertexAttrib1sNV", 607 },
1304 { "glVertexAttrib1svNV", 608 },
1305 { "glVertexAttrib2dNV", 609 },
1306 { "glVertexAttrib2dvNV", 610 },
1307 { "glVertexAttrib2fNV", 611 },
1308 { "glVertexAttrib2fvNV", 612 },
1309 { "glVertexAttrib2sNV", 613 },
1310 { "glVertexAttrib2svNV", 614 },
1311 { "glVertexAttrib3dNV", 615 },
1312 { "glVertexAttrib3dvNV", 616 },
1313 { "glVertexAttrib3fNV", 617 },
1314 { "glVertexAttrib3fvNV", 618 },
1315 { "glVertexAttrib3sNV", 619 },
1316 { "glVertexAttrib3svNV", 620 },
1317 { "glVertexAttrib4dNV", 621 },
1318 { "glVertexAttrib4dvNV", 622 },
1319 { "glVertexAttrib4fNV", 623 },
1320 { "glVertexAttrib4fvNV", 624 },
1321 { "glVertexAttrib4sNV", 625 },
1322 { "glVertexAttrib4svNV", 626 },
1323 { "glVertexAttrib4ubNV", 627 },
1324 { "glVertexAttrib4ubvNV", 628 },
1325 { "glVertexAttribs1dvNV", 629 },
1326 { "glVertexAttribs1fvNV", 630 },
1327 { "glVertexAttribs1svNV", 631 },
1328 { "glVertexAttribs2dvNV", 632 },
1329 { "glVertexAttribs2fvNV", 633 },
1330 { "glVertexAttribs2svNV", 634 },
1331 { "glVertexAttribs3dvNV", 635 },
1332 { "glVertexAttribs3fvNV", 636 },
1333 { "glVertexAttribs3svNV", 637 },
1334 { "glVertexAttribs4dvNV", 638 },
1335 { "glVertexAttribs4fvNV", 639 },
1336 { "glVertexAttribs4svNV", 640 },
1337 { "glVertexAttribs4ubvNV", 641 },
1339 { "glPointParameteriNV", 642 },
1340 { "glPointParameterivNV", 643 },
1341 { "glMultiDrawArraysEXT", 644 },
1342 { "glMultiDrawElementsEXT", 645 },
1343 { "glMultiDrawArraysSUN", _gloffset_MultiDrawArraysEXT
},
1344 { "glMultiDrawElementsSUN", _gloffset_MultiDrawElementsEXT
},
1345 { "glActiveStencilFaceEXT", 646 },
1346 #if FEATURE_NV_fence
1347 { "glDeleteFencesNV", 647 },
1348 { "glGenFencesNV", 648 },
1349 { "glIsFenceNV", 649 },
1350 { "glTestFenceNV", 650 },
1351 { "glGetFenceivNV", 651 },
1352 { "glFinishFenceNV", 652 },
1353 { "glSetFenceNV", 653 },
1355 #if FEATURE_NV_fragment_program
1356 { "glProgramNamedParameter4fNV", 682 },
1357 { "glProgramNamedParameter4dNV", 683 },
1358 { "glProgramNamedParameter4fvNV", 683 },
1359 { "glProgramNamedParameter4dvNV", 684 },
1360 { "glGetProgramNamedParameterfvNV", 685 },
1361 { "glGetProgramNamedParameterdvNV", 686 },
1363 #if FEATURE_ARB_vertex_program
1364 { "glVertexAttrib1sARB", _gloffset_VertexAttrib1sNV
},
1365 { "glVertexAttrib1fARB", _gloffset_VertexAttrib1fNV
},
1366 { "glVertexAttrib1dARB", _gloffset_VertexAttrib1dNV
},
1367 { "glVertexAttrib2sARB", _gloffset_VertexAttrib2sNV
},
1368 { "glVertexAttrib2fARB", _gloffset_VertexAttrib2fNV
},
1369 { "glVertexAttrib2dARB", _gloffset_VertexAttrib2dNV
},
1370 { "glVertexAttrib3sARB", _gloffset_VertexAttrib3sNV
},
1371 { "glVertexAttrib3fARB", _gloffset_VertexAttrib3fNV
},
1372 { "glVertexAttrib3dARB", _gloffset_VertexAttrib3dNV
},
1373 { "glVertexAttrib4sARB", _gloffset_VertexAttrib4sNV
},
1374 { "glVertexAttrib4fARB", _gloffset_VertexAttrib4fNV
},
1375 { "glVertexAttrib4dARB", _gloffset_VertexAttrib4dNV
},
1376 { "glVertexAttrib4NubARB", _gloffset_VertexAttrib4ubNV
},
1377 { "glVertexAttrib1svARB", _gloffset_VertexAttrib1svNV
},
1378 { "glVertexAttrib1fvARB", _gloffset_VertexAttrib1fvNV
},
1379 { "glVertexAttrib1dvARB", _gloffset_VertexAttrib1dvNV
},
1380 { "glVertexAttrib2svARB", _gloffset_VertexAttrib2svNV
},
1381 { "glVertexAttrib2fvARB", _gloffset_VertexAttrib2fvNV
},
1382 { "glVertexAttrib2dvARB", _gloffset_VertexAttrib2dvNV
},
1383 { "glVertexAttrib3svARB", _gloffset_VertexAttrib3svNV
},
1384 { "glVertexAttrib3fvARB", _gloffset_VertexAttrib3fvNV
},
1385 { "glVertexAttrib3dvARB", _gloffset_VertexAttrib3dvNV
},
1386 { "glVertexAttrib4bvARB", _gloffset_VertexAttrib4bvARB
},
1387 { "glVertexAttrib4svARB", _gloffset_VertexAttrib4svNV
},
1388 { "glVertexAttrib4ivARB", _gloffset_VertexAttrib4ivARB
},
1389 { "glVertexAttrib4ubvARB", _gloffset_VertexAttrib4ubvARB
},
1390 { "glVertexAttrib4usvARB", _gloffset_VertexAttrib4usvARB
},
1391 { "glVertexAttrib4uivARB", _gloffset_VertexAttrib4uivARB
},
1392 { "glVertexAttrib4fvARB", _gloffset_VertexAttrib4fvNV
},
1393 { "glVertexAttrib4dvARB", _gloffset_VertexAttrib4dvNV
},
1394 { "glVertexAttrib4NbvARB", _gloffset_VertexAttrib4NbvARB
},
1395 { "glVertexAttrib4NsvARB", _gloffset_VertexAttrib4NsvARB
},
1396 { "glVertexAttrib4NivARB", _gloffset_VertexAttrib4NivARB
},
1397 { "glVertexAttrib4NubvARB", _gloffset_VertexAttrib4ubvNV
},
1398 { "glVertexAttrib4NusvARB", _gloffset_VertexAttrib4NusvARB
},
1399 { "glVertexAttrib4NuivARB", _gloffset_VertexAttrib4NuivARB
},
1400 { "glVertexAttribPointerARB", _gloffset_VertexAttribPointerARB
},
1401 { "glEnableVertexAttribArrayARB", _gloffset_EnableVertexAttribArrayARB
},
1402 { "glDisableVertexAttribArrayARB", _gloffset_DisableVertexAttribArrayARB
},
1403 { "glProgramStringARB", _gloffset_ProgramStringARB
},
1404 { "glBindProgramARB", _gloffset_BindProgramNV
},
1405 { "glDeleteProgramsARB", _gloffset_DeleteProgramsNV
},
1406 { "glGenProgramsARB", _gloffset_GenProgramsNV
},
1407 { "glIsProgramARB", _gloffset_IsProgramNV
},
1408 { "glProgramEnvParameter4dARB", _gloffset_ProgramEnvParameter4dARB
},
1409 { "glProgramEnvParameter4dvARB", _gloffset_ProgramEnvParameter4dvARB
},
1410 { "glProgramEnvParameter4fARB", _gloffset_ProgramEnvParameter4fARB
},
1411 { "glProgramEnvParameter4fvARB", _gloffset_ProgramEnvParameter4fvARB
},
1412 { "glProgramLocalParameter4dARB", _gloffset_ProgramLocalParameter4dARB
},
1413 { "glProgramLocalParameter4dvARB", _gloffset_ProgramLocalParameter4dvARB
},
1414 { "glProgramLocalParameter4fARB", _gloffset_ProgramLocalParameter4fARB
},
1415 { "glProgramLocalParameter4fvARB", _gloffset_ProgramLocalParameter4fvARB
},
1416 { "glGetProgramEnvParameterdvARB", _gloffset_GetProgramEnvParameterdvARB
},
1417 { "glGetProgramEnvParameterfvARB", _gloffset_GetProgramEnvParameterfvARB
},
1418 { "glGetProgramLocalParameterdvARB", _gloffset_GetProgramLocalParameterdvARB
},
1419 { "glGetProgramLocalParameterfvARB", _gloffset_GetProgramLocalParameterfvARB
},
1420 { "glGetProgramivARB", _gloffset_GetProgramivARB
},
1421 { "glGetProgramStringARB", _gloffset_GetProgramStringARB
},
1422 { "glGetVertexAttribdvARB", _gloffset_GetVertexAttribdvNV
},
1423 { "glGetVertexAttribfvARB", _gloffset_GetVertexAttribfvNV
},
1424 { "glGetVertexAttribivARB", _gloffset_GetVertexAttribivNV
},
1425 { "glGetVertexAttribPointervARB", _gloffset_GetVertexAttribPointervNV
},
1427 { "glMultiModeDrawArraysIBM", _gloffset_MultiModeDrawArraysIBM
},
1428 { "glMultiModeDrawElementsIBM", _gloffset_MultiModeDrawElementsIBM
},
1429 /* GL_EXT_stencil_two_side */
1430 { "glActiveStencilFaceEXT", _gloffset_ActiveStencilFaceEXT
},
1431 /* GL_ARB_draw_buffers */
1432 { "glDrawBuffersARB", _gloffset_DrawBuffersARB
},
1433 #if FEATURE_ATI_fragment_shader
1434 { "glGenFragmentShadersATI", _gloffset_GenFragmentShadersATI
},
1435 { "glBindFragmentShaderATI", _gloffset_BindFragmentShaderATI
},
1436 { "glDeleteFragmentShaderATI", _gloffset_DeleteFragmentShaderATI
},
1437 { "glBeginFragmentShaderATI", _gloffset_BeginFragmentShaderATI
},
1438 { "glEndFragmentShaderATI", _gloffset_EndFragmentShaderATI
},
1439 { "glPassTexCoordATI", _gloffset_PassTexCoordATI
},
1440 { "glSampleMapATI", _gloffset_SampleMapATI
},
1441 { "glColorFragmentOp1ATI", _gloffset_ColorFragmentOp1ATI
},
1442 { "glColorFragmentOp2ATI", _gloffset_ColorFragmentOp2ATI
},
1443 { "glColorFragmentOp3ATI", _gloffset_ColorFragmentOp3ATI
},
1444 { "glAlphaFragmentOp1ATI", _gloffset_AlphaFragmentOp1ATI
},
1445 { "glAlphaFragmentOp2ATI", _gloffset_AlphaFragmentOp2ATI
},
1446 { "glAlphaFragmentOp3ATI", _gloffset_AlphaFragmentOp3ATI
},
1447 { "glSetFragmentShaderConstantATI", _gloffset_SetFragmentShaderConstantATI
},
1451 for (i
= 0; i
< Elements(newer_entrypoints
); i
++ ) {
1452 _glapi_add_entrypoint( newer_entrypoints
[i
].name
,
1453 newer_entrypoints
[i
].offset
);
1459 * This is the default function we plug into all dispatch table slots
1460 * This helps prevents a segfault when someone calls a GL function without
1461 * first checking if the extension's supported.
1466 _mesa_problem(NULL
, "User called no-op dispatch function (an unsupported extension function?)");
1472 * Allocate and initialize a new dispatch table.
1474 static struct _glapi_table
*
1475 alloc_dispatch_table(void)
1477 /* Find the larger of Mesa's dispatch table and libGL's dispatch table.
1478 * In practice, this'll be the same for stand-alone Mesa. But for DRI
1479 * Mesa we do this to accomodate different versions of libGL and various
1482 GLint numEntries
= MAX2(_glapi_get_dispatch_table_size(),
1483 sizeof(struct _glapi_table
) / sizeof(_glapi_proc
));
1484 struct _glapi_table
*table
=
1485 (struct _glapi_table
*) _mesa_malloc(numEntries
* sizeof(_glapi_proc
));
1487 _glapi_proc
*entry
= (_glapi_proc
*) table
;
1489 for (i
= 0; i
< numEntries
; i
++) {
1490 entry
[i
] = (_glapi_proc
) generic_nop
;
1498 * Initialize a GLcontext struct (rendering context).
1500 * This includes allocating all the other structs and arrays which hang off of
1501 * the context by pointers.
1502 * Note that the driver needs to pass in its dd_function_table here since
1503 * we need to at least call driverFunctions->NewTextureObject to create the
1504 * default texture objects.
1506 * Called by _mesa_create_context().
1508 * Performs the imports and exports callback tables initialization, and
1509 * miscellaneous one-time initializations. If no shared context is supplied one
1510 * is allocated, and increase its reference count. Setups the GL API dispatch
1511 * tables. Initialize the TNL module. Sets the maximum Z buffer depth.
1512 * Finally queries the \c MESA_DEBUG and \c MESA_VERBOSE environment variables
1515 * \param ctx the context to initialize
1516 * \param visual describes the visual attributes for this context
1517 * \param share_list points to context to share textures, display lists,
1519 * \param driverFunctions table of device driver functions for this context
1521 * \param driverContext pointer to driver-specific context data
1524 _mesa_initialize_context( GLcontext
*ctx
,
1525 const GLvisual
*visual
,
1526 GLcontext
*share_list
,
1527 const struct dd_function_table
*driverFunctions
,
1528 void *driverContext
)
1530 ASSERT(driverContext
);
1531 assert(driverFunctions
->NewTextureObject
);
1533 /* If the driver wants core Mesa to use special imports, it'll have to
1534 * override these defaults.
1536 _mesa_init_default_imports( &(ctx
->imports
), driverContext
);
1538 /* initialize the exports (Mesa functions called by the window system) */
1539 _mesa_init_default_exports( &(ctx
->exports
) );
1541 /* misc one-time initializations */
1544 ctx
->Visual
= *visual
;
1545 ctx
->DrawBuffer
= NULL
;
1546 ctx
->ReadBuffer
= NULL
;
1548 /* Plug in driver functions and context pointer here.
1549 * This is important because when we call alloc_shared_state() below
1550 * we'll call ctx->Driver.NewTextureObject() to create the default
1553 ctx
->Driver
= *driverFunctions
;
1554 ctx
->DriverCtx
= driverContext
;
1557 /* share state with another context */
1558 ctx
->Shared
= share_list
->Shared
;
1561 /* allocate new, unshared state */
1562 if (!alloc_shared_state( ctx
)) {
1566 _glthread_LOCK_MUTEX(ctx
->Shared
->Mutex
);
1567 ctx
->Shared
->RefCount
++;
1568 _glthread_UNLOCK_MUTEX(ctx
->Shared
->Mutex
);
1570 if (!init_attrib_groups( ctx
)) {
1571 free_shared_state(ctx
, ctx
->Shared
);
1575 /* libGL ABI coordination */
1576 add_newer_entrypoints();
1578 /* setup the API dispatch tables */
1579 ctx
->Exec
= alloc_dispatch_table();
1580 ctx
->Save
= alloc_dispatch_table();
1581 if (!ctx
->Exec
|| !ctx
->Save
) {
1582 free_shared_state(ctx
, ctx
->Shared
);
1584 _mesa_free(ctx
->Exec
);
1586 _mesa_init_exec_table(ctx
->Exec
);
1587 ctx
->CurrentDispatch
= ctx
->Exec
;
1589 _mesa_init_dlist_table(ctx
->Save
);
1590 _mesa_install_save_vtxfmt( ctx
, &ctx
->ListState
.ListVtxfmt
);
1591 /* Neutral tnl module stuff */
1592 _mesa_init_exec_vtxfmt( ctx
);
1593 ctx
->TnlModule
.Current
= NULL
;
1594 ctx
->TnlModule
.SwapCount
= 0;
1602 * Allocate and initialize a GLcontext structure.
1603 * Note that the driver needs to pass in its dd_function_table here since
1604 * we need to at least call driverFunctions->NewTextureObject to initialize
1605 * the rendering context.
1607 * \param visual a GLvisual pointer (we copy the struct contents)
1608 * \param share_list another context to share display lists with or NULL
1609 * \param driverFunctions points to the dd_function_table into which the
1610 * driver has plugged in all its special functions.
1611 * \param driverCtx points to the device driver's private context state
1613 * \return pointer to a new __GLcontextRec or NULL if error.
1616 _mesa_create_context( const GLvisual
*visual
,
1617 GLcontext
*share_list
,
1618 const struct dd_function_table
*driverFunctions
,
1619 void *driverContext
)
1625 ASSERT(driverContext
);
1627 ctx
= (GLcontext
*) _mesa_calloc(sizeof(GLcontext
));
1631 if (_mesa_initialize_context(ctx
, visual
, share_list
,
1632 driverFunctions
, driverContext
)) {
1643 * Free the data associated with the given context.
1645 * But doesn't free the GLcontext struct itself.
1647 * \sa _mesa_initialize_context() and init_attrib_groups().
1650 _mesa_free_context_data( GLcontext
*ctx
)
1652 /* if we're destroying the current context, unbind it first */
1653 if (ctx
== _mesa_get_current_context()) {
1654 _mesa_make_current(NULL
, NULL
);
1657 _mesa_free_lighting_data( ctx
);
1658 _mesa_free_eval_data( ctx
);
1659 _mesa_free_texture_data( ctx
);
1660 _mesa_free_matrix_data( ctx
);
1661 _mesa_free_viewport_data( ctx
);
1662 _mesa_free_colortables_data( ctx
);
1663 _mesa_free_program_data(ctx
);
1664 _mesa_free_occlude_data(ctx
);
1666 #if FEATURE_ARB_vertex_buffer_object
1667 _mesa_delete_buffer_object(ctx
, ctx
->Array
.NullBufferObj
);
1670 /* free dispatch tables */
1671 _mesa_free(ctx
->Exec
);
1672 _mesa_free(ctx
->Save
);
1674 /* Shared context state (display lists, textures, etc) */
1675 _glthread_LOCK_MUTEX(ctx
->Shared
->Mutex
);
1676 ctx
->Shared
->RefCount
--;
1677 assert(ctx
->Shared
->RefCount
>= 0);
1678 _glthread_UNLOCK_MUTEX(ctx
->Shared
->Mutex
);
1679 if (ctx
->Shared
->RefCount
== 0) {
1680 /* free shared state */
1681 free_shared_state( ctx
, ctx
->Shared
);
1684 if (ctx
->Extensions
.String
)
1685 FREE((void *) ctx
->Extensions
.String
);
1690 * Destroy a GLcontext structure.
1692 * \param ctx GL context.
1694 * Calls _mesa_free_context_data() and frees the GLcontext structure itself.
1697 _mesa_destroy_context( GLcontext
*ctx
)
1700 _mesa_free_context_data(ctx
);
1701 FREE( (void *) ctx
);
1708 * Copy attribute groups from one context to another.
1710 * \param src source context
1711 * \param dst destination context
1712 * \param mask bitwise OR of GL_*_BIT flags
1714 * According to the bits specified in \p mask, copies the corresponding
1715 * attributes from \p src into \p dst. For many of the attributes a simple \c
1716 * memcpy is not enough due to the existence of internal pointers in their data
1720 _mesa_copy_context( const GLcontext
*src
, GLcontext
*dst
, GLuint mask
)
1722 if (mask
& GL_ACCUM_BUFFER_BIT
) {
1724 dst
->Accum
= src
->Accum
;
1726 if (mask
& GL_COLOR_BUFFER_BIT
) {
1728 dst
->Color
= src
->Color
;
1730 if (mask
& GL_CURRENT_BIT
) {
1732 dst
->Current
= src
->Current
;
1734 if (mask
& GL_DEPTH_BUFFER_BIT
) {
1736 dst
->Depth
= src
->Depth
;
1738 if (mask
& GL_ENABLE_BIT
) {
1741 if (mask
& GL_EVAL_BIT
) {
1743 dst
->Eval
= src
->Eval
;
1745 if (mask
& GL_FOG_BIT
) {
1747 dst
->Fog
= src
->Fog
;
1749 if (mask
& GL_HINT_BIT
) {
1751 dst
->Hint
= src
->Hint
;
1753 if (mask
& GL_LIGHTING_BIT
) {
1755 /* begin with memcpy */
1756 MEMCPY( &dst
->Light
, &src
->Light
, sizeof(struct gl_light
) );
1757 /* fixup linked lists to prevent pointer insanity */
1758 make_empty_list( &(dst
->Light
.EnabledList
) );
1759 for (i
= 0; i
< MAX_LIGHTS
; i
++) {
1760 if (dst
->Light
.Light
[i
].Enabled
) {
1761 insert_at_tail(&(dst
->Light
.EnabledList
), &(dst
->Light
.Light
[i
]));
1765 if (mask
& GL_LINE_BIT
) {
1767 dst
->Line
= src
->Line
;
1769 if (mask
& GL_LIST_BIT
) {
1771 dst
->List
= src
->List
;
1773 if (mask
& GL_PIXEL_MODE_BIT
) {
1775 dst
->Pixel
= src
->Pixel
;
1777 if (mask
& GL_POINT_BIT
) {
1779 dst
->Point
= src
->Point
;
1781 if (mask
& GL_POLYGON_BIT
) {
1783 dst
->Polygon
= src
->Polygon
;
1785 if (mask
& GL_POLYGON_STIPPLE_BIT
) {
1786 /* Use loop instead of MEMCPY due to problem with Portland Group's
1787 * C compiler. Reported by John Stone.
1790 for (i
= 0; i
< 32; i
++) {
1791 dst
->PolygonStipple
[i
] = src
->PolygonStipple
[i
];
1794 if (mask
& GL_SCISSOR_BIT
) {
1796 dst
->Scissor
= src
->Scissor
;
1798 if (mask
& GL_STENCIL_BUFFER_BIT
) {
1800 dst
->Stencil
= src
->Stencil
;
1802 if (mask
& GL_TEXTURE_BIT
) {
1803 /* Cannot memcpy because of pointers */
1804 _mesa_copy_texture_state(src
, dst
);
1806 if (mask
& GL_TRANSFORM_BIT
) {
1808 dst
->Transform
= src
->Transform
;
1810 if (mask
& GL_VIEWPORT_BIT
) {
1811 /* Cannot use memcpy, because of pointers in GLmatrix _WindowMap */
1812 dst
->Viewport
.X
= src
->Viewport
.X
;
1813 dst
->Viewport
.Y
= src
->Viewport
.Y
;
1814 dst
->Viewport
.Width
= src
->Viewport
.Width
;
1815 dst
->Viewport
.Height
= src
->Viewport
.Height
;
1816 dst
->Viewport
.Near
= src
->Viewport
.Near
;
1817 dst
->Viewport
.Far
= src
->Viewport
.Far
;
1818 _math_matrix_copy(&dst
->Viewport
._WindowMap
, &src
->Viewport
._WindowMap
);
1821 /* XXX FIXME: Call callbacks?
1823 dst
->NewState
= _NEW_ALL
;
1829 * Check if the given context can render into the given framebuffer
1830 * by checking visual attributes.
1831 * \return GL_TRUE if compatible, GL_FALSE otherwise.
1834 check_compatible(const GLcontext
*ctx
, const GLframebuffer
*buffer
)
1836 const GLvisual
*ctxvis
= &ctx
->Visual
;
1837 const GLvisual
*bufvis
= &buffer
->Visual
;
1839 if (ctxvis
== bufvis
)
1842 if (ctxvis
->rgbMode
!= bufvis
->rgbMode
)
1844 if (ctxvis
->doubleBufferMode
&& !bufvis
->doubleBufferMode
)
1846 if (ctxvis
->stereoMode
&& !bufvis
->stereoMode
)
1848 if (ctxvis
->haveAccumBuffer
&& !bufvis
->haveAccumBuffer
)
1850 if (ctxvis
->haveDepthBuffer
&& !bufvis
->haveDepthBuffer
)
1852 if (ctxvis
->haveStencilBuffer
&& !bufvis
->haveStencilBuffer
)
1854 if (ctxvis
->redMask
&& ctxvis
->redMask
!= bufvis
->redMask
)
1856 if (ctxvis
->greenMask
&& ctxvis
->greenMask
!= bufvis
->greenMask
)
1858 if (ctxvis
->blueMask
&& ctxvis
->blueMask
!= bufvis
->blueMask
)
1860 if (ctxvis
->depthBits
&& ctxvis
->depthBits
!= bufvis
->depthBits
)
1862 if (ctxvis
->stencilBits
&& ctxvis
->stencilBits
!= bufvis
->stencilBits
)
1870 * Set the current context, binding the given frame buffer to the context.
1872 * \param newCtx new GL context.
1873 * \param buffer framebuffer.
1875 * Calls _mesa_make_current2() with \p buffer as read and write framebuffer.
1878 _mesa_make_current( GLcontext
*newCtx
, GLframebuffer
*buffer
)
1880 _mesa_make_current2( newCtx
, buffer
, buffer
);
1884 * Bind the given context to the given draw-buffer and read-buffer and
1885 * make it the current context for this thread.
1887 * \param newCtx new GL context. If NULL then there will be no current GL
1889 * \param drawBuffer draw framebuffer.
1890 * \param readBuffer read framebuffer.
1892 * Check that the context's and framebuffer's visuals are compatible, returning
1893 * immediately otherwise. Sets the glapi current context via
1894 * _glapi_set_context(). If \p newCtx is not NULL, associates \p drawBuffer and
1895 * \p readBuffer with it and calls dd_function_table::ResizeBuffers if the buffers size has changed.
1896 * Calls dd_function_table::MakeCurrent callback if defined.
1898 * When a context is bound by the first time and the \c MESA_INFO environment
1899 * variable is set it calls print_info() as an aid for remote user
1903 _mesa_make_current2( GLcontext
*newCtx
, GLframebuffer
*drawBuffer
,
1904 GLframebuffer
*readBuffer
)
1907 _mesa_debug(newCtx
, "_mesa_make_current2()\n");
1909 /* Check that the context's and framebuffer's visuals are compatible.
1911 if (newCtx
&& drawBuffer
&& newCtx
->DrawBuffer
!= drawBuffer
) {
1912 if (!check_compatible(newCtx
, drawBuffer
))
1915 if (newCtx
&& readBuffer
&& newCtx
->ReadBuffer
!= readBuffer
) {
1916 if (!check_compatible(newCtx
, readBuffer
))
1920 /* We call this function periodically (just here for now) in
1921 * order to detect when multithreading has begun.
1923 _glapi_check_multithread();
1925 _glapi_set_context((void *) newCtx
);
1926 ASSERT(_mesa_get_current_context() == newCtx
);
1930 _glapi_set_dispatch(NULL
); /* none current */
1933 _glapi_set_dispatch(newCtx
->CurrentDispatch
);
1935 if (drawBuffer
&& readBuffer
) {
1936 /* TODO: check if newCtx and buffer's visual match??? */
1937 newCtx
->DrawBuffer
= drawBuffer
;
1938 newCtx
->ReadBuffer
= readBuffer
;
1939 newCtx
->NewState
|= _NEW_BUFFERS
;
1942 if (!drawBuffer
->Initialized
) {
1943 /* get initial window size */
1944 GLuint bufWidth
, bufHeight
;
1945 /* ask device driver for size of the buffer */
1946 (*newCtx
->Driver
.GetBufferSize
)(drawBuffer
, &bufWidth
, &bufHeight
);
1947 /* set initial buffer size */
1948 drawBuffer
->Width
= bufWidth
;
1949 drawBuffer
->Height
= bufHeight
;
1950 newCtx
->Driver
.ResizeBuffers( drawBuffer
);
1951 drawBuffer
->Initialized
= GL_TRUE
;
1954 if (readBuffer
!= drawBuffer
&& !readBuffer
->Initialized
) {
1955 /* get initial window size */
1956 GLuint bufWidth
, bufHeight
;
1957 /* ask device driver for size of the buffer */
1958 (*newCtx
->Driver
.GetBufferSize
)(readBuffer
, &bufWidth
, &bufHeight
);
1959 /* set initial buffer size */
1960 readBuffer
->Width
= bufWidth
;
1961 readBuffer
->Height
= bufHeight
;
1962 newCtx
->Driver
.ResizeBuffers( readBuffer
);
1963 readBuffer
->Initialized
= GL_TRUE
;
1966 if (newCtx
->FirstTimeCurrent
) {
1967 /* set initial viewport and scissor size now */
1968 _mesa_set_viewport(newCtx
, 0, 0, drawBuffer
->Width
, drawBuffer
->Height
);
1969 newCtx
->Scissor
.Width
= drawBuffer
->Width
;
1970 newCtx
->Scissor
.Height
= drawBuffer
->Height
;
1974 /* Alert the driver - usually passed on to the sw t&l module,
1975 * but also used to detect threaded cases in the radeon codegen
1978 if (newCtx
->Driver
.MakeCurrent
)
1979 newCtx
->Driver
.MakeCurrent( newCtx
, drawBuffer
, readBuffer
);
1981 /* We can use this to help debug user's problems. Tell them to set
1982 * the MESA_INFO env variable before running their app. Then the
1983 * first time each context is made current we'll print some useful
1986 if (newCtx
->FirstTimeCurrent
) {
1987 if (_mesa_getenv("MESA_INFO")) {
1990 newCtx
->FirstTimeCurrent
= GL_FALSE
;
1996 * Get current context for the calling thread.
1998 * \return pointer to the current GL context.
2000 * Calls _glapi_get_context(). This isn't the fastest way to get the current
2001 * context. If you need speed, see the #GET_CURRENT_CONTEXT macro in context.h.
2004 _mesa_get_current_context( void )
2006 return (GLcontext
*) _glapi_get_context();
2010 * Get context's current API dispatch table.
2012 * It'll either be the immediate-mode execute dispatcher or the display list
2013 * compile dispatcher.
2015 * \param ctx GL context.
2017 * \return pointer to dispatch_table.
2019 * Simply returns __GLcontextRec::CurrentDispatch.
2021 struct _glapi_table
*
2022 _mesa_get_dispatch(GLcontext
*ctx
)
2024 return ctx
->CurrentDispatch
;
2030 /**********************************************************************/
2031 /** \name Miscellaneous functions */
2032 /**********************************************************************/
2038 * \param ctx GL context.
2039 * \param error error code.
2041 * Records the given error code and call the driver's dd_function_table::Error
2042 * function if defined.
2045 * This is called via _mesa_error().
2048 _mesa_record_error( GLcontext
*ctx
, GLenum error
)
2053 if (ctx
->ErrorValue
== GL_NO_ERROR
) {
2054 ctx
->ErrorValue
= error
;
2057 /* Call device driver's error handler, if any. This is used on the Mac. */
2058 if (ctx
->Driver
.Error
) {
2059 (*ctx
->Driver
.Error
)( ctx
);
2064 * Execute glFinish().
2066 * Calls the #ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH macro and the
2067 * dd_function_table::Finish driver callback, if not NULL.
2070 _mesa_Finish( void )
2072 GET_CURRENT_CONTEXT(ctx
);
2073 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
2074 if (ctx
->Driver
.Finish
) {
2075 (*ctx
->Driver
.Finish
)( ctx
);
2080 * Execute glFlush().
2082 * Calls the #ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH macro and the
2083 * dd_function_table::Flush driver callback, if not NULL.
2088 GET_CURRENT_CONTEXT(ctx
);
2089 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
2090 if (ctx
->Driver
.Flush
) {
2091 (*ctx
->Driver
.Flush
)( ctx
);