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"
38 struct glx_context base
;
39 __DRIcontext
*driContext
;
45 struct glx_screen base
;
47 __DRIscreen
*driScreen
;
48 __GLXDRIscreen vtable
;
49 const __DRIcoreExtension
*core
;
50 const __DRIswrastExtension
*swrast
;
51 const __DRItexBufferExtension
*texBuffer
;
53 const __DRIconfig
**driver_configs
;
60 __GLXDRIdrawable base
;
65 __DRIdrawable
*driDrawable
;
71 XCreateDrawable(struct drisw_drawable
* pdp
,
72 Display
* dpy
, XID drawable
, int visualid
)
80 pdp
->gc
= XCreateGC(dpy
, drawable
, 0, NULL
);
81 pdp
->swapgc
= XCreateGC(dpy
, drawable
, 0, NULL
);
83 gcvalues
.function
= GXcopy
;
84 gcvalues
.graphics_exposures
= False
;
85 XChangeGC(dpy
, pdp
->gc
, GCFunction
, &gcvalues
);
86 XChangeGC(dpy
, pdp
->swapgc
, GCFunction
, &gcvalues
);
87 XChangeGC(dpy
, pdp
->swapgc
, GCGraphicsExposures
, &gcvalues
);
90 visTemp
.screen
= DefaultScreen(dpy
);
91 visTemp
.visualid
= visualid
;
92 visMask
= (VisualScreenMask
| VisualIDMask
);
93 pdp
->visinfo
= XGetVisualInfo(dpy
, visMask
, &visTemp
, &num_visuals
);
96 pdp
->ximage
= XCreateImage(dpy
,
99 ZPixmap
, 0, /* format, offset */
101 0, 0, /* width, height */
103 0); /* bytes_per_line */
106 * swrast does not handle 24-bit depth with 24 bpp, so let X do the
107 * the conversion for us.
109 if (pdp
->ximage
->bits_per_pixel
== 24)
110 pdp
->ximage
->bits_per_pixel
= 32;
116 XDestroyDrawable(struct drisw_drawable
* pdp
, Display
* dpy
, XID drawable
)
118 XDestroyImage(pdp
->ximage
);
121 XFreeGC(dpy
, pdp
->gc
);
122 XFreeGC(dpy
, pdp
->swapgc
);
126 * swrast loader functions
130 swrastGetDrawableInfo(__DRIdrawable
* draw
,
131 int *x
, int *y
, int *w
, int *h
,
134 struct drisw_drawable
*pdp
= loaderPrivate
;
135 __GLXDRIdrawable
*pdraw
= &(pdp
->base
);
136 Display
*dpy
= pdraw
->psc
->dpy
;
140 unsigned uw
, uh
, bw
, depth
;
142 drawable
= pdraw
->xDrawable
;
144 XGetGeometry(dpy
, drawable
, &root
, x
, y
, &uw
, &uh
, &bw
, &depth
);
150 * Align renderbuffer pitch.
152 * This should be chosen by the driver and the loader (libGL, xserver/glx)
153 * should use the driver provided pitch.
155 * It seems that the xorg loader (that is the xserver loading swrast_dri for
156 * indirect rendering, not client-side libGL) requires that the pitch is
157 * exactly the image width padded to 32 bits. XXX
159 * The above restriction can probably be overcome by using ScratchPixmap and
160 * CopyArea in the xserver, similar to ShmPutImage, and setting the width of
161 * the scratch pixmap to 'pitch / cpp'.
164 bytes_per_line(unsigned pitch_bits
, unsigned mul
)
166 unsigned mask
= mul
- 1;
168 return ((pitch_bits
+ mask
) & ~mask
) / 8;
172 swrastPutImage(__DRIdrawable
* draw
, int op
,
173 int x
, int y
, int w
, int h
,
174 char *data
, void *loaderPrivate
)
176 struct drisw_drawable
*pdp
= loaderPrivate
;
177 __GLXDRIdrawable
*pdraw
= &(pdp
->base
);
178 Display
*dpy
= pdraw
->psc
->dpy
;
184 case __DRI_SWRAST_IMAGE_OP_DRAW
:
187 case __DRI_SWRAST_IMAGE_OP_SWAP
:
194 drawable
= pdraw
->xDrawable
;
196 ximage
= pdp
->ximage
;
200 ximage
->bytes_per_line
= bytes_per_line(w
* ximage
->bits_per_pixel
, 32);
202 XPutImage(dpy
, drawable
, gc
, ximage
, 0, 0, x
, y
, w
, h
);
208 swrastGetImage(__DRIdrawable
* read
,
209 int x
, int y
, int w
, int h
,
210 char *data
, void *loaderPrivate
)
212 struct drisw_drawable
*prp
= loaderPrivate
;
213 __GLXDRIdrawable
*pread
= &(prp
->base
);
214 Display
*dpy
= pread
->psc
->dpy
;
218 readable
= pread
->xDrawable
;
220 ximage
= prp
->ximage
;
224 ximage
->bytes_per_line
= bytes_per_line(w
* ximage
->bits_per_pixel
, 32);
226 XGetSubImage(dpy
, readable
, x
, y
, w
, h
, ~0L, ZPixmap
, ximage
, 0, 0);
231 static const __DRIswrastLoaderExtension swrastLoaderExtension
= {
232 {__DRI_SWRAST_LOADER
, __DRI_SWRAST_LOADER_VERSION
},
233 swrastGetDrawableInfo
,
238 static const __DRIextension
*loader_extensions
[] = {
239 &systemTimeExtension
.base
,
240 &swrastLoaderExtension
.base
,
249 drisw_destroy_context(struct glx_context
*context
)
251 struct drisw_context
*pcp
= (struct drisw_context
*) context
;
252 struct drisw_screen
*psc
= (struct drisw_screen
*) context
->psc
;
254 driReleaseDrawables(&pcp
->base
);
257 glx_send_destroy_context(psc
->base
.dpy
, context
->xid
);
259 if (context
->extensions
)
260 XFree((char *) context
->extensions
);
262 (*psc
->core
->destroyContext
) (pcp
->driContext
);
268 drisw_bind_context(struct glx_context
*context
, struct glx_context
*old
,
269 GLXDrawable draw
, GLXDrawable read
)
271 struct drisw_context
*pcp
= (struct drisw_context
*) context
;
272 struct drisw_screen
*psc
= (struct drisw_screen
*) pcp
->base
.psc
;
273 struct drisw_drawable
*pdraw
, *pread
;
275 pdraw
= (struct drisw_drawable
*) driFetchDrawable(context
, draw
);
276 pread
= (struct drisw_drawable
*) driFetchDrawable(context
, read
);
278 driReleaseDrawables(&pcp
->base
);
280 if (pdraw
== NULL
|| pread
== NULL
)
281 return GLXBadDrawable
;
283 if ((*psc
->core
->bindContext
) (pcp
->driContext
,
284 pdraw
->driDrawable
, pread
->driDrawable
))
287 return GLXBadContext
;
291 drisw_unbind_context(struct glx_context
*context
, struct glx_context
*new)
293 struct drisw_context
*pcp
= (struct drisw_context
*) context
;
294 struct drisw_screen
*psc
= (struct drisw_screen
*) pcp
->base
.psc
;
296 (*psc
->core
->unbindContext
) (pcp
->driContext
);
300 drisw_bind_tex_image(Display
* dpy
,
301 GLXDrawable drawable
,
302 int buffer
, const int *attrib_list
)
304 struct glx_context
*gc
= __glXGetCurrentContext();
305 struct drisw_context
*pcp
= (struct drisw_context
*) gc
;
306 __GLXDRIdrawable
*base
= GetGLXDRIDrawable(dpy
, drawable
);
307 struct glx_display
*dpyPriv
= __glXInitialize(dpy
);
308 struct drisw_drawable
*pdraw
= (struct drisw_drawable
*) base
;
309 struct drisw_screen
*psc
;
312 psc
= (struct drisw_screen
*) base
->psc
;
317 if (psc
->texBuffer
->base
.version
>= 2 &&
318 psc
->texBuffer
->setTexBuffer2
!= NULL
) {
319 (*psc
->texBuffer
->setTexBuffer2
) (pcp
->driContext
,
320 pdraw
->base
.textureTarget
,
321 pdraw
->base
.textureFormat
,
325 (*psc
->texBuffer
->setTexBuffer
) (pcp
->driContext
,
326 pdraw
->base
.textureTarget
,
333 drisw_release_tex_image(Display
* dpy
, GLXDrawable drawable
, int buffer
)
335 #if __DRI_TEX_BUFFER_VERSION >= 3
336 struct glx_context
*gc
= __glXGetCurrentContext();
337 struct dri2_context
*pcp
= (struct dri2_context
*) gc
;
338 __GLXDRIdrawable
*base
= GetGLXDRIDrawable(dpy
, drawable
);
339 struct glx_display
*dpyPriv
= __glXInitialize(dpy
);
340 struct dri2_drawable
*pdraw
= (struct dri2_drawable
*) base
;
341 struct dri2_screen
*psc
;
344 psc
= (struct dri2_screen
*) base
->psc
;
349 if (psc
->texBuffer
->base
.version
>= 3 &&
350 psc
->texBuffer
->releaseTexBuffer
!= NULL
) {
351 (*psc
->texBuffer
->releaseTexBuffer
) (pcp
->driContext
,
352 pdraw
->base
.textureTarget
,
359 static const struct glx_context_vtable drisw_context_vtable
= {
360 drisw_destroy_context
,
362 drisw_unbind_context
,
366 drisw_bind_tex_image
,
367 drisw_release_tex_image
,
368 NULL
, /* get_proc_address */
371 static struct glx_context
*
372 drisw_create_context(struct glx_screen
*base
,
373 struct glx_config
*config_base
,
374 struct glx_context
*shareList
, int renderType
)
376 struct drisw_context
*pcp
, *pcp_shared
;
377 __GLXDRIconfigPrivate
*config
= (__GLXDRIconfigPrivate
*) config_base
;
378 struct drisw_screen
*psc
= (struct drisw_screen
*) base
;
379 __DRIcontext
*shared
= NULL
;
381 if (!psc
->base
.driScreen
)
385 pcp_shared
= (struct drisw_context
*) shareList
;
386 shared
= pcp_shared
->driContext
;
389 pcp
= Xmalloc(sizeof *pcp
);
393 memset(pcp
, 0, sizeof *pcp
);
394 if (!glx_context_init(&pcp
->base
, &psc
->base
, &config
->base
)) {
400 (*psc
->core
->createNewContext
) (psc
->driScreen
,
401 config
->driConfig
, shared
, pcp
);
402 if (pcp
->driContext
== NULL
) {
407 pcp
->base
.vtable
= &drisw_context_vtable
;
413 driswDestroyDrawable(__GLXDRIdrawable
* pdraw
)
415 struct drisw_drawable
*pdp
= (struct drisw_drawable
*) pdraw
;
416 struct drisw_screen
*psc
= (struct drisw_screen
*) pdp
->base
.psc
;
418 (*psc
->core
->destroyDrawable
) (pdp
->driDrawable
);
420 XDestroyDrawable(pdp
, pdraw
->psc
->dpy
, pdraw
->drawable
);
424 static __GLXDRIdrawable
*
425 driswCreateDrawable(struct glx_screen
*base
, XID xDrawable
,
426 GLXDrawable drawable
, struct glx_config
*modes
)
428 struct drisw_drawable
*pdp
;
429 __GLXDRIconfigPrivate
*config
= (__GLXDRIconfigPrivate
*) modes
;
430 struct drisw_screen
*psc
= (struct drisw_screen
*) base
;
432 const __DRIswrastExtension
*swrast
= psc
->swrast
;
434 pdp
= Xmalloc(sizeof(*pdp
));
438 memset(pdp
, 0, sizeof *pdp
);
439 pdp
->base
.xDrawable
= xDrawable
;
440 pdp
->base
.drawable
= drawable
;
441 pdp
->base
.psc
= &psc
->base
;
443 XCreateDrawable(pdp
, psc
->base
.dpy
, xDrawable
, modes
->visualID
);
445 /* Create a new drawable */
447 (*swrast
->createNewDrawable
) (psc
->driScreen
, config
->driConfig
, pdp
);
449 if (!pdp
->driDrawable
) {
450 XDestroyDrawable(pdp
, psc
->base
.dpy
, xDrawable
);
455 pdp
->base
.destroyDrawable
= driswDestroyDrawable
;
461 driswSwapBuffers(__GLXDRIdrawable
* pdraw
,
462 int64_t target_msc
, int64_t divisor
, int64_t remainder
)
464 struct drisw_drawable
*pdp
= (struct drisw_drawable
*) pdraw
;
465 struct drisw_screen
*psc
= (struct drisw_screen
*) pdp
->base
.psc
;
471 (*psc
->core
->swapBuffers
) (pdp
->driDrawable
);
477 driswDestroyScreen(struct glx_screen
*base
)
479 struct drisw_screen
*psc
= (struct drisw_screen
*) base
;
481 /* Free the direct rendering per screen data */
482 (*psc
->core
->destroyScreen
) (psc
->driScreen
);
483 driDestroyConfigs(psc
->driver_configs
);
484 psc
->driScreen
= NULL
;
486 dlclose(psc
->driver
);
495 driver
= driOpenDriver("swrast");
500 static const struct glx_screen_vtable drisw_screen_vtable
= {
505 driswBindExtensions(struct drisw_screen
*psc
, const __DRIextension
**extensions
)
509 __glXEnableDirectExtension(&psc
->base
, "GLX_SGI_make_current_read");
511 /* FIXME: Figure out what other extensions can be ported here from dri2. */
512 for (i
= 0; extensions
[i
]; i
++) {
513 if ((strcmp(extensions
[i
]->name
, __DRI_TEX_BUFFER
) == 0)) {
514 psc
->texBuffer
= (__DRItexBufferExtension
*) extensions
[i
];
515 __glXEnableDirectExtension(&psc
->base
, "GLX_EXT_texture_from_pixmap");
520 static struct glx_screen
*
521 driswCreateScreen(int screen
, struct glx_display
*priv
)
524 const __DRIconfig
**driver_configs
;
525 const __DRIextension
**extensions
;
526 struct drisw_screen
*psc
;
527 struct glx_config
*configs
= NULL
, *visuals
= NULL
;
530 psc
= Xcalloc(1, sizeof *psc
);
534 memset(psc
, 0, sizeof *psc
);
535 if (!glx_screen_init(&psc
->base
, screen
, priv
)) {
540 psc
->driver
= driOpenSwrast();
541 if (psc
->driver
== NULL
)
544 extensions
= dlsym(psc
->driver
, __DRI_DRIVER_EXTENSIONS
);
545 if (extensions
== NULL
) {
546 ErrorMessageF("driver exports no extensions (%s)\n", dlerror());
550 for (i
= 0; extensions
[i
]; i
++) {
551 if (strcmp(extensions
[i
]->name
, __DRI_CORE
) == 0)
552 psc
->core
= (__DRIcoreExtension
*) extensions
[i
];
553 if (strcmp(extensions
[i
]->name
, __DRI_SWRAST
) == 0)
554 psc
->swrast
= (__DRIswrastExtension
*) extensions
[i
];
557 if (psc
->core
== NULL
|| psc
->swrast
== NULL
) {
558 ErrorMessageF("core dri extension not found\n");
563 psc
->swrast
->createNewScreen(screen
, loader_extensions
,
564 &driver_configs
, psc
);
565 if (psc
->driScreen
== NULL
) {
566 ErrorMessageF("failed to create dri screen\n");
570 extensions
= psc
->core
->getExtensions(psc
->driScreen
);
571 driswBindExtensions(psc
, extensions
);
573 configs
= driConvertConfigs(psc
->core
, psc
->base
.configs
, driver_configs
);
574 visuals
= driConvertConfigs(psc
->core
, psc
->base
.visuals
, driver_configs
);
576 if (!configs
|| !visuals
)
579 glx_config_destroy_list(psc
->base
.configs
);
580 psc
->base
.configs
= configs
;
581 glx_config_destroy_list(psc
->base
.visuals
);
582 psc
->base
.visuals
= visuals
;
584 psc
->driver_configs
= driver_configs
;
586 psc
->base
.vtable
= &drisw_screen_vtable
;
588 psc
->base
.driScreen
= psp
;
589 psp
->destroyScreen
= driswDestroyScreen
;
590 psp
->createDrawable
= driswCreateDrawable
;
591 psp
->swapBuffers
= driswSwapBuffers
;
597 glx_config_destroy_list(configs
);
599 glx_config_destroy_list(visuals
);
601 psc
->core
->destroyScreen(psc
->driScreen
);
602 psc
->driScreen
= NULL
;
605 dlclose(psc
->driver
);
606 glx_screen_cleanup(&psc
->base
);
609 ErrorMessageF("reverting to indirect rendering\n");
614 /* Called from __glXFreeDisplayPrivate.
617 driswDestroyDisplay(__GLXDRIdisplay
* dpy
)
623 * Allocate, initialize and return a __DRIdisplayPrivate object.
624 * This is called from __glXInitialize() when we are given a new
627 _X_HIDDEN __GLXDRIdisplay
*
628 driswCreateDisplay(Display
* dpy
)
630 struct drisw_display
*pdpyp
;
632 pdpyp
= Xmalloc(sizeof *pdpyp
);
636 pdpyp
->base
.destroyDisplay
= driswDestroyDisplay
;
637 pdpyp
->base
.createScreen
= driswCreateScreen
;
642 #endif /* GLX_DIRECT_RENDERING */