2 * Copyright 2008 George Sapountzis
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
24 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
27 #include "glxclient.h"
29 #include "dri_common.h"
30 #include "drisw_priv.h"
33 XCreateDrawable(struct drisw_drawable
* pdp
,
34 Display
* dpy
, XID drawable
, int visualid
)
42 pdp
->gc
= XCreateGC(dpy
, drawable
, 0, NULL
);
43 pdp
->swapgc
= XCreateGC(dpy
, drawable
, 0, NULL
);
45 gcvalues
.function
= GXcopy
;
46 gcvalues
.graphics_exposures
= False
;
47 XChangeGC(dpy
, pdp
->gc
, GCFunction
, &gcvalues
);
48 XChangeGC(dpy
, pdp
->swapgc
, GCFunction
, &gcvalues
);
49 XChangeGC(dpy
, pdp
->swapgc
, GCGraphicsExposures
, &gcvalues
);
52 visTemp
.visualid
= visualid
;
53 visMask
= VisualIDMask
;
54 pdp
->visinfo
= XGetVisualInfo(dpy
, visMask
, &visTemp
, &num_visuals
);
56 if (!pdp
->visinfo
|| num_visuals
== 0)
60 pdp
->ximage
= XCreateImage(dpy
,
63 ZPixmap
, 0, /* format, offset */
65 0, 0, /* width, height */
67 0); /* bytes_per_line */
70 * swrast does not handle 24-bit depth with 24 bpp, so let X do the
71 * the conversion for us.
73 if (pdp
->ximage
->bits_per_pixel
== 24)
74 pdp
->ximage
->bits_per_pixel
= 32;
80 XDestroyDrawable(struct drisw_drawable
* pdp
, Display
* dpy
, XID drawable
)
82 XDestroyImage(pdp
->ximage
);
85 XFreeGC(dpy
, pdp
->gc
);
86 XFreeGC(dpy
, pdp
->swapgc
);
90 * swrast loader functions
94 swrastGetDrawableInfo(__DRIdrawable
* draw
,
95 int *x
, int *y
, int *w
, int *h
,
98 struct drisw_drawable
*pdp
= loaderPrivate
;
99 __GLXDRIdrawable
*pdraw
= &(pdp
->base
);
100 Display
*dpy
= pdraw
->psc
->dpy
;
104 unsigned uw
, uh
, bw
, depth
;
106 drawable
= pdraw
->xDrawable
;
108 XGetGeometry(dpy
, drawable
, &root
, x
, y
, &uw
, &uh
, &bw
, &depth
);
114 * Align renderbuffer pitch.
116 * This should be chosen by the driver and the loader (libGL, xserver/glx)
117 * should use the driver provided pitch.
119 * It seems that the xorg loader (that is the xserver loading swrast_dri for
120 * indirect rendering, not client-side libGL) requires that the pitch is
121 * exactly the image width padded to 32 bits. XXX
123 * The above restriction can probably be overcome by using ScratchPixmap and
124 * CopyArea in the xserver, similar to ShmPutImage, and setting the width of
125 * the scratch pixmap to 'pitch / cpp'.
128 bytes_per_line(unsigned pitch_bits
, unsigned mul
)
130 unsigned mask
= mul
- 1;
132 return ((pitch_bits
+ mask
) & ~mask
) / 8;
136 swrastPutImage2(__DRIdrawable
* draw
, int op
,
137 int x
, int y
, int w
, int h
, int stride
,
138 char *data
, void *loaderPrivate
)
140 struct drisw_drawable
*pdp
= loaderPrivate
;
141 __GLXDRIdrawable
*pdraw
= &(pdp
->base
);
142 Display
*dpy
= pdraw
->psc
->dpy
;
148 case __DRI_SWRAST_IMAGE_OP_DRAW
:
151 case __DRI_SWRAST_IMAGE_OP_SWAP
:
158 drawable
= pdraw
->xDrawable
;
160 ximage
= pdp
->ximage
;
164 ximage
->bytes_per_line
= stride
? stride
: bytes_per_line(w
* ximage
->bits_per_pixel
, 32);
166 XPutImage(dpy
, drawable
, gc
, ximage
, 0, 0, x
, y
, w
, h
);
172 swrastPutImage(__DRIdrawable
* draw
, int op
,
173 int x
, int y
, int w
, int h
,
174 char *data
, void *loaderPrivate
)
176 swrastPutImage2(draw
, op
, x
, y
, w
, h
, 0, data
, loaderPrivate
);
180 swrastGetImage(__DRIdrawable
* read
,
181 int x
, int y
, int w
, int h
,
182 char *data
, void *loaderPrivate
)
184 struct drisw_drawable
*prp
= loaderPrivate
;
185 __GLXDRIdrawable
*pread
= &(prp
->base
);
186 Display
*dpy
= pread
->psc
->dpy
;
190 readable
= pread
->xDrawable
;
192 ximage
= prp
->ximage
;
196 ximage
->bytes_per_line
= bytes_per_line(w
* ximage
->bits_per_pixel
, 32);
198 XGetSubImage(dpy
, readable
, x
, y
, w
, h
, ~0L, ZPixmap
, ximage
, 0, 0);
203 static const __DRIswrastLoaderExtension swrastLoaderExtension
= {
204 .base
= {__DRI_SWRAST_LOADER
, 2 },
206 .getDrawableInfo
= swrastGetDrawableInfo
,
207 .putImage
= swrastPutImage
,
208 .getImage
= swrastGetImage
,
209 .putImage2
= swrastPutImage2
,
212 static const __DRIextension
*loader_extensions
[] = {
213 &systemTimeExtension
.base
,
214 &swrastLoaderExtension
.base
,
223 drisw_destroy_context(struct glx_context
*context
)
225 struct drisw_context
*pcp
= (struct drisw_context
*) context
;
226 struct drisw_screen
*psc
= (struct drisw_screen
*) context
->psc
;
228 driReleaseDrawables(&pcp
->base
);
230 free((char *) context
->extensions
);
232 (*psc
->core
->destroyContext
) (pcp
->driContext
);
238 drisw_bind_context(struct glx_context
*context
, struct glx_context
*old
,
239 GLXDrawable draw
, GLXDrawable read
)
241 struct drisw_context
*pcp
= (struct drisw_context
*) context
;
242 struct drisw_screen
*psc
= (struct drisw_screen
*) pcp
->base
.psc
;
243 struct drisw_drawable
*pdraw
, *pread
;
245 pdraw
= (struct drisw_drawable
*) driFetchDrawable(context
, draw
);
246 pread
= (struct drisw_drawable
*) driFetchDrawable(context
, read
);
248 driReleaseDrawables(&pcp
->base
);
250 if (pdraw
== NULL
|| pread
== NULL
)
251 return GLXBadDrawable
;
253 if ((*psc
->core
->bindContext
) (pcp
->driContext
,
254 pdraw
->driDrawable
, pread
->driDrawable
))
257 return GLXBadContext
;
261 drisw_unbind_context(struct glx_context
*context
, struct glx_context
*new)
263 struct drisw_context
*pcp
= (struct drisw_context
*) context
;
264 struct drisw_screen
*psc
= (struct drisw_screen
*) pcp
->base
.psc
;
266 (*psc
->core
->unbindContext
) (pcp
->driContext
);
270 drisw_bind_tex_image(Display
* dpy
,
271 GLXDrawable drawable
,
272 int buffer
, const int *attrib_list
)
274 struct glx_context
*gc
= __glXGetCurrentContext();
275 struct drisw_context
*pcp
= (struct drisw_context
*) gc
;
276 __GLXDRIdrawable
*base
= GetGLXDRIDrawable(dpy
, drawable
);
277 struct drisw_drawable
*pdraw
= (struct drisw_drawable
*) base
;
278 struct drisw_screen
*psc
;
280 __glXInitialize(dpy
);
283 psc
= (struct drisw_screen
*) base
->psc
;
288 if (psc
->texBuffer
->base
.version
>= 2 &&
289 psc
->texBuffer
->setTexBuffer2
!= NULL
) {
290 (*psc
->texBuffer
->setTexBuffer2
) (pcp
->driContext
,
291 pdraw
->base
.textureTarget
,
292 pdraw
->base
.textureFormat
,
296 (*psc
->texBuffer
->setTexBuffer
) (pcp
->driContext
,
297 pdraw
->base
.textureTarget
,
304 drisw_release_tex_image(Display
* dpy
, GLXDrawable drawable
, int buffer
)
306 struct glx_context
*gc
= __glXGetCurrentContext();
307 struct drisw_context
*pcp
= (struct drisw_context
*) gc
;
308 __GLXDRIdrawable
*base
= GetGLXDRIDrawable(dpy
, drawable
);
309 struct glx_display
*dpyPriv
= __glXInitialize(dpy
);
310 struct drisw_drawable
*pdraw
= (struct drisw_drawable
*) base
;
311 struct drisw_screen
*psc
;
313 if (dpyPriv
!= NULL
&& pdraw
!= NULL
) {
314 psc
= (struct drisw_screen
*) base
->psc
;
319 if (psc
->texBuffer
->base
.version
>= 3 &&
320 psc
->texBuffer
->releaseTexBuffer
!= NULL
) {
321 (*psc
->texBuffer
->releaseTexBuffer
) (pcp
->driContext
,
322 pdraw
->base
.textureTarget
,
328 static const struct glx_context_vtable drisw_context_vtable
= {
329 .destroy
= drisw_destroy_context
,
330 .bind
= drisw_bind_context
,
331 .unbind
= drisw_unbind_context
,
334 .use_x_font
= DRI_glXUseXFont
,
335 .bind_tex_image
= drisw_bind_tex_image
,
336 .release_tex_image
= drisw_release_tex_image
,
337 .get_proc_address
= NULL
,
340 static struct glx_context
*
341 drisw_create_context(struct glx_screen
*base
,
342 struct glx_config
*config_base
,
343 struct glx_context
*shareList
, int renderType
)
345 struct drisw_context
*pcp
, *pcp_shared
;
346 __GLXDRIconfigPrivate
*config
= (__GLXDRIconfigPrivate
*) config_base
;
347 struct drisw_screen
*psc
= (struct drisw_screen
*) base
;
348 __DRIcontext
*shared
= NULL
;
350 if (!psc
->base
.driScreen
)
353 /* Check the renderType value */
354 if (!validate_renderType_against_config(config_base
, renderType
))
358 /* If the shareList context is not a DRISW context, we cannot possibly
359 * create a DRISW context that shares it.
361 if (shareList
->vtable
->destroy
!= drisw_destroy_context
) {
365 pcp_shared
= (struct drisw_context
*) shareList
;
366 shared
= pcp_shared
->driContext
;
369 pcp
= calloc(1, sizeof *pcp
);
373 if (!glx_context_init(&pcp
->base
, &psc
->base
, &config
->base
)) {
378 pcp
->base
.renderType
= renderType
;
381 (*psc
->core
->createNewContext
) (psc
->driScreen
,
382 config
->driConfig
, shared
, pcp
);
383 if (pcp
->driContext
== NULL
) {
388 pcp
->base
.vtable
= &drisw_context_vtable
;
393 static struct glx_context
*
394 drisw_create_context_attribs(struct glx_screen
*base
,
395 struct glx_config
*config_base
,
396 struct glx_context
*shareList
,
397 unsigned num_attribs
,
398 const uint32_t *attribs
,
401 struct drisw_context
*pcp
, *pcp_shared
;
402 __GLXDRIconfigPrivate
*config
= (__GLXDRIconfigPrivate
*) config_base
;
403 struct drisw_screen
*psc
= (struct drisw_screen
*) base
;
404 __DRIcontext
*shared
= NULL
;
412 uint32_t ctx_attribs
[2 * 4];
413 unsigned num_ctx_attribs
= 0;
415 if (!psc
->base
.driScreen
)
418 if (psc
->swrast
->base
.version
< 3)
421 /* Remap the GLX tokens to DRI2 tokens.
423 if (!dri2_convert_glx_attribs(num_attribs
, attribs
,
424 &major_ver
, &minor_ver
, &renderType
, &flags
,
425 &api
, &reset
, error
))
428 /* Check the renderType value */
429 if (!validate_renderType_against_config(config_base
, renderType
)) {
433 if (reset
!= __DRI_CTX_RESET_NO_NOTIFICATION
)
437 pcp_shared
= (struct drisw_context
*) shareList
;
438 shared
= pcp_shared
->driContext
;
441 pcp
= calloc(1, sizeof *pcp
);
445 if (!glx_context_init(&pcp
->base
, &psc
->base
, &config
->base
)) {
450 ctx_attribs
[num_ctx_attribs
++] = __DRI_CTX_ATTRIB_MAJOR_VERSION
;
451 ctx_attribs
[num_ctx_attribs
++] = major_ver
;
452 ctx_attribs
[num_ctx_attribs
++] = __DRI_CTX_ATTRIB_MINOR_VERSION
;
453 ctx_attribs
[num_ctx_attribs
++] = minor_ver
;
456 ctx_attribs
[num_ctx_attribs
++] = __DRI_CTX_ATTRIB_FLAGS
;
458 /* The current __DRI_CTX_FLAG_* values are identical to the
459 * GLX_CONTEXT_*_BIT values.
461 ctx_attribs
[num_ctx_attribs
++] = flags
;
464 pcp
->base
.renderType
= renderType
;
467 (*psc
->swrast
->createContextAttribs
) (psc
->driScreen
,
475 if (pcp
->driContext
== NULL
) {
480 pcp
->base
.vtable
= &drisw_context_vtable
;
486 driswDestroyDrawable(__GLXDRIdrawable
* pdraw
)
488 struct drisw_drawable
*pdp
= (struct drisw_drawable
*) pdraw
;
489 struct drisw_screen
*psc
= (struct drisw_screen
*) pdp
->base
.psc
;
491 (*psc
->core
->destroyDrawable
) (pdp
->driDrawable
);
493 XDestroyDrawable(pdp
, pdraw
->psc
->dpy
, pdraw
->drawable
);
497 static __GLXDRIdrawable
*
498 driswCreateDrawable(struct glx_screen
*base
, XID xDrawable
,
499 GLXDrawable drawable
, struct glx_config
*modes
)
501 struct drisw_drawable
*pdp
;
502 __GLXDRIconfigPrivate
*config
= (__GLXDRIconfigPrivate
*) modes
;
503 struct drisw_screen
*psc
= (struct drisw_screen
*) base
;
505 const __DRIswrastExtension
*swrast
= psc
->swrast
;
507 pdp
= calloc(1, sizeof(*pdp
));
511 pdp
->base
.xDrawable
= xDrawable
;
512 pdp
->base
.drawable
= drawable
;
513 pdp
->base
.psc
= &psc
->base
;
515 ret
= XCreateDrawable(pdp
, psc
->base
.dpy
, xDrawable
, modes
->visualID
);
521 /* Create a new drawable */
523 (*swrast
->createNewDrawable
) (psc
->driScreen
, config
->driConfig
, pdp
);
525 if (!pdp
->driDrawable
) {
526 XDestroyDrawable(pdp
, psc
->base
.dpy
, xDrawable
);
531 pdp
->base
.destroyDrawable
= driswDestroyDrawable
;
537 driswSwapBuffers(__GLXDRIdrawable
* pdraw
,
538 int64_t target_msc
, int64_t divisor
, int64_t remainder
,
541 struct drisw_drawable
*pdp
= (struct drisw_drawable
*) pdraw
;
542 struct drisw_screen
*psc
= (struct drisw_screen
*) pdp
->base
.psc
;
552 (*psc
->core
->swapBuffers
) (pdp
->driDrawable
);
558 driswCopySubBuffer(__GLXDRIdrawable
* pdraw
,
559 int x
, int y
, int width
, int height
, Bool flush
)
561 struct drisw_drawable
*pdp
= (struct drisw_drawable
*) pdraw
;
562 struct drisw_screen
*psc
= (struct drisw_screen
*) pdp
->base
.psc
;
568 (*psc
->copySubBuffer
->copySubBuffer
) (pdp
->driDrawable
,
569 x
, y
, width
, height
);
573 driswDestroyScreen(struct glx_screen
*base
)
575 struct drisw_screen
*psc
= (struct drisw_screen
*) base
;
577 /* Free the direct rendering per screen data */
578 (*psc
->core
->destroyScreen
) (psc
->driScreen
);
579 driDestroyConfigs(psc
->driver_configs
);
580 psc
->driScreen
= NULL
;
582 dlclose(psc
->driver
);
586 #define SWRAST_DRIVER_NAME "swrast"
594 driver
= driOpenDriver(SWRAST_DRIVER_NAME
);
599 static const struct glx_screen_vtable drisw_screen_vtable
= {
600 .create_context
= drisw_create_context
,
601 .create_context_attribs
= drisw_create_context_attribs
,
602 .query_renderer_integer
= drisw_query_renderer_integer
,
603 .query_renderer_string
= drisw_query_renderer_string
,
607 driswBindExtensions(struct drisw_screen
*psc
, const __DRIextension
**extensions
)
611 __glXEnableDirectExtension(&psc
->base
, "GLX_SGI_make_current_read");
613 if (psc
->swrast
->base
.version
>= 3) {
614 __glXEnableDirectExtension(&psc
->base
, "GLX_ARB_create_context");
615 __glXEnableDirectExtension(&psc
->base
, "GLX_ARB_create_context_profile");
617 /* DRISW version >= 2 implies support for OpenGL ES 2.0.
619 __glXEnableDirectExtension(&psc
->base
,
620 "GLX_EXT_create_context_es2_profile");
623 if (psc
->copySubBuffer
)
624 __glXEnableDirectExtension(&psc
->base
, "GLX_MESA_copy_sub_buffer");
626 /* FIXME: Figure out what other extensions can be ported here from dri2. */
627 for (i
= 0; extensions
[i
]; i
++) {
628 if ((strcmp(extensions
[i
]->name
, __DRI_TEX_BUFFER
) == 0)) {
629 psc
->texBuffer
= (__DRItexBufferExtension
*) extensions
[i
];
630 __glXEnableDirectExtension(&psc
->base
, "GLX_EXT_texture_from_pixmap");
632 /* DRISW version 3 is also required because GLX_MESA_query_renderer
633 * requires GLX_ARB_create_context_profile.
635 if (psc
->swrast
->base
.version
>= 3
636 && strcmp(extensions
[i
]->name
, __DRI2_RENDERER_QUERY
) == 0) {
637 psc
->rendererQuery
= (__DRI2rendererQueryExtension
*) extensions
[i
];
638 __glXEnableDirectExtension(&psc
->base
, "GLX_MESA_query_renderer");
643 static struct glx_screen
*
644 driswCreateScreen(int screen
, struct glx_display
*priv
)
647 const __DRIconfig
**driver_configs
;
648 const __DRIextension
**extensions
;
649 struct drisw_screen
*psc
;
650 struct glx_config
*configs
= NULL
, *visuals
= NULL
;
653 psc
= calloc(1, sizeof *psc
);
657 if (!glx_screen_init(&psc
->base
, screen
, priv
)) {
662 psc
->driver
= driOpenSwrast();
663 if (psc
->driver
== NULL
)
666 extensions
= driGetDriverExtensions(psc
->driver
, SWRAST_DRIVER_NAME
);
667 if (extensions
== NULL
)
670 for (i
= 0; extensions
[i
]; i
++) {
671 if (strcmp(extensions
[i
]->name
, __DRI_CORE
) == 0)
672 psc
->core
= (__DRIcoreExtension
*) extensions
[i
];
673 if (strcmp(extensions
[i
]->name
, __DRI_SWRAST
) == 0)
674 psc
->swrast
= (__DRIswrastExtension
*) extensions
[i
];
675 if (strcmp(extensions
[i
]->name
, __DRI_COPY_SUB_BUFFER
) == 0)
676 psc
->copySubBuffer
= (__DRIcopySubBufferExtension
*) extensions
[i
];
679 if (psc
->core
== NULL
|| psc
->swrast
== NULL
) {
680 ErrorMessageF("core dri extension not found\n");
684 if (psc
->swrast
->base
.version
>= 4) {
686 psc
->swrast
->createNewScreen2(screen
, loader_extensions
,
688 &driver_configs
, psc
);
691 psc
->swrast
->createNewScreen(screen
, loader_extensions
,
692 &driver_configs
, psc
);
694 if (psc
->driScreen
== NULL
) {
695 ErrorMessageF("failed to create dri screen\n");
699 extensions
= psc
->core
->getExtensions(psc
->driScreen
);
700 driswBindExtensions(psc
, extensions
);
702 configs
= driConvertConfigs(psc
->core
, psc
->base
.configs
, driver_configs
);
703 visuals
= driConvertConfigs(psc
->core
, psc
->base
.visuals
, driver_configs
);
705 if (!configs
|| !visuals
) {
706 ErrorMessageF("No matching fbConfigs or visuals found\n");
710 glx_config_destroy_list(psc
->base
.configs
);
711 psc
->base
.configs
= configs
;
712 glx_config_destroy_list(psc
->base
.visuals
);
713 psc
->base
.visuals
= visuals
;
715 psc
->driver_configs
= driver_configs
;
717 psc
->base
.vtable
= &drisw_screen_vtable
;
719 psc
->base
.driScreen
= psp
;
720 psp
->destroyScreen
= driswDestroyScreen
;
721 psp
->createDrawable
= driswCreateDrawable
;
722 psp
->swapBuffers
= driswSwapBuffers
;
724 if (psc
->copySubBuffer
)
725 psp
->copySubBuffer
= driswCopySubBuffer
;
731 glx_config_destroy_list(configs
);
733 glx_config_destroy_list(visuals
);
735 psc
->core
->destroyScreen(psc
->driScreen
);
736 psc
->driScreen
= NULL
;
739 dlclose(psc
->driver
);
740 glx_screen_cleanup(&psc
->base
);
743 CriticalErrorMessageF("failed to load driver: %s\n", SWRAST_DRIVER_NAME
);
748 /* Called from __glXFreeDisplayPrivate.
751 driswDestroyDisplay(__GLXDRIdisplay
* dpy
)
757 * Allocate, initialize and return a __DRIdisplayPrivate object.
758 * This is called from __glXInitialize() when we are given a new
761 _X_HIDDEN __GLXDRIdisplay
*
762 driswCreateDisplay(Display
* dpy
)
764 struct drisw_display
*pdpyp
;
766 pdpyp
= malloc(sizeof *pdpyp
);
770 pdpyp
->base
.destroyDisplay
= driswDestroyDisplay
;
771 pdpyp
->base
.createScreen
= driswCreateScreen
;
776 #endif /* GLX_DIRECT_RENDERING */