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
;
52 const __DRIcopySubBufferExtension
*copySubBuffer
;
54 const __DRIconfig
**driver_configs
;
61 __GLXDRIdrawable base
;
66 __DRIdrawable
*driDrawable
;
72 XCreateDrawable(struct drisw_drawable
* pdp
,
73 Display
* dpy
, XID drawable
, int visualid
)
81 pdp
->gc
= XCreateGC(dpy
, drawable
, 0, NULL
);
82 pdp
->swapgc
= XCreateGC(dpy
, drawable
, 0, NULL
);
84 gcvalues
.function
= GXcopy
;
85 gcvalues
.graphics_exposures
= False
;
86 XChangeGC(dpy
, pdp
->gc
, GCFunction
, &gcvalues
);
87 XChangeGC(dpy
, pdp
->swapgc
, GCFunction
, &gcvalues
);
88 XChangeGC(dpy
, pdp
->swapgc
, GCGraphicsExposures
, &gcvalues
);
91 visTemp
.visualid
= visualid
;
92 visMask
= VisualIDMask
;
93 pdp
->visinfo
= XGetVisualInfo(dpy
, visMask
, &visTemp
, &num_visuals
);
95 if (!pdp
->visinfo
|| num_visuals
== 0)
99 pdp
->ximage
= XCreateImage(dpy
,
100 pdp
->visinfo
->visual
,
102 ZPixmap
, 0, /* format, offset */
104 0, 0, /* width, height */
106 0); /* bytes_per_line */
109 * swrast does not handle 24-bit depth with 24 bpp, so let X do the
110 * the conversion for us.
112 if (pdp
->ximage
->bits_per_pixel
== 24)
113 pdp
->ximage
->bits_per_pixel
= 32;
119 XDestroyDrawable(struct drisw_drawable
* pdp
, Display
* dpy
, XID drawable
)
121 XDestroyImage(pdp
->ximage
);
124 XFreeGC(dpy
, pdp
->gc
);
125 XFreeGC(dpy
, pdp
->swapgc
);
129 * swrast loader functions
133 swrastGetDrawableInfo(__DRIdrawable
* draw
,
134 int *x
, int *y
, int *w
, int *h
,
137 struct drisw_drawable
*pdp
= loaderPrivate
;
138 __GLXDRIdrawable
*pdraw
= &(pdp
->base
);
139 Display
*dpy
= pdraw
->psc
->dpy
;
143 unsigned uw
, uh
, bw
, depth
;
145 drawable
= pdraw
->xDrawable
;
147 XGetGeometry(dpy
, drawable
, &root
, x
, y
, &uw
, &uh
, &bw
, &depth
);
153 * Align renderbuffer pitch.
155 * This should be chosen by the driver and the loader (libGL, xserver/glx)
156 * should use the driver provided pitch.
158 * It seems that the xorg loader (that is the xserver loading swrast_dri for
159 * indirect rendering, not client-side libGL) requires that the pitch is
160 * exactly the image width padded to 32 bits. XXX
162 * The above restriction can probably be overcome by using ScratchPixmap and
163 * CopyArea in the xserver, similar to ShmPutImage, and setting the width of
164 * the scratch pixmap to 'pitch / cpp'.
167 bytes_per_line(unsigned pitch_bits
, unsigned mul
)
169 unsigned mask
= mul
- 1;
171 return ((pitch_bits
+ mask
) & ~mask
) / 8;
175 swrastPutImage2(__DRIdrawable
* draw
, int op
,
176 int x
, int y
, int w
, int h
, int stride
,
177 char *data
, void *loaderPrivate
)
179 struct drisw_drawable
*pdp
= loaderPrivate
;
180 __GLXDRIdrawable
*pdraw
= &(pdp
->base
);
181 Display
*dpy
= pdraw
->psc
->dpy
;
187 case __DRI_SWRAST_IMAGE_OP_DRAW
:
190 case __DRI_SWRAST_IMAGE_OP_SWAP
:
197 drawable
= pdraw
->xDrawable
;
199 ximage
= pdp
->ximage
;
203 ximage
->bytes_per_line
= stride
? stride
: bytes_per_line(w
* ximage
->bits_per_pixel
, 32);
205 XPutImage(dpy
, drawable
, gc
, ximage
, 0, 0, x
, y
, w
, h
);
211 swrastPutImage(__DRIdrawable
* draw
, int op
,
212 int x
, int y
, int w
, int h
,
213 char *data
, void *loaderPrivate
)
215 swrastPutImage2(draw
, op
, x
, y
, w
, h
, 0, data
, loaderPrivate
);
219 swrastGetImage(__DRIdrawable
* read
,
220 int x
, int y
, int w
, int h
,
221 char *data
, void *loaderPrivate
)
223 struct drisw_drawable
*prp
= loaderPrivate
;
224 __GLXDRIdrawable
*pread
= &(prp
->base
);
225 Display
*dpy
= pread
->psc
->dpy
;
229 readable
= pread
->xDrawable
;
231 ximage
= prp
->ximage
;
235 ximage
->bytes_per_line
= bytes_per_line(w
* ximage
->bits_per_pixel
, 32);
237 XGetSubImage(dpy
, readable
, x
, y
, w
, h
, ~0L, ZPixmap
, ximage
, 0, 0);
242 static const __DRIswrastLoaderExtension swrastLoaderExtension
= {
243 {__DRI_SWRAST_LOADER
, __DRI_SWRAST_LOADER_VERSION
},
244 swrastGetDrawableInfo
,
250 static const __DRIextension
*loader_extensions
[] = {
251 &systemTimeExtension
.base
,
252 &swrastLoaderExtension
.base
,
261 drisw_destroy_context(struct glx_context
*context
)
263 struct drisw_context
*pcp
= (struct drisw_context
*) context
;
264 struct drisw_screen
*psc
= (struct drisw_screen
*) context
->psc
;
266 driReleaseDrawables(&pcp
->base
);
268 free((char *) context
->extensions
);
270 (*psc
->core
->destroyContext
) (pcp
->driContext
);
276 drisw_bind_context(struct glx_context
*context
, struct glx_context
*old
,
277 GLXDrawable draw
, GLXDrawable read
)
279 struct drisw_context
*pcp
= (struct drisw_context
*) context
;
280 struct drisw_screen
*psc
= (struct drisw_screen
*) pcp
->base
.psc
;
281 struct drisw_drawable
*pdraw
, *pread
;
283 pdraw
= (struct drisw_drawable
*) driFetchDrawable(context
, draw
);
284 pread
= (struct drisw_drawable
*) driFetchDrawable(context
, read
);
286 driReleaseDrawables(&pcp
->base
);
288 if (pdraw
== NULL
|| pread
== NULL
)
289 return GLXBadDrawable
;
291 if ((*psc
->core
->bindContext
) (pcp
->driContext
,
292 pdraw
->driDrawable
, pread
->driDrawable
))
295 return GLXBadContext
;
299 drisw_unbind_context(struct glx_context
*context
, struct glx_context
*new)
301 struct drisw_context
*pcp
= (struct drisw_context
*) context
;
302 struct drisw_screen
*psc
= (struct drisw_screen
*) pcp
->base
.psc
;
304 (*psc
->core
->unbindContext
) (pcp
->driContext
);
308 drisw_bind_tex_image(Display
* dpy
,
309 GLXDrawable drawable
,
310 int buffer
, const int *attrib_list
)
312 struct glx_context
*gc
= __glXGetCurrentContext();
313 struct drisw_context
*pcp
= (struct drisw_context
*) gc
;
314 __GLXDRIdrawable
*base
= GetGLXDRIDrawable(dpy
, drawable
);
315 struct drisw_drawable
*pdraw
= (struct drisw_drawable
*) base
;
316 struct drisw_screen
*psc
;
318 __glXInitialize(dpy
);
321 psc
= (struct drisw_screen
*) base
->psc
;
326 if (psc
->texBuffer
->base
.version
>= 2 &&
327 psc
->texBuffer
->setTexBuffer2
!= NULL
) {
328 (*psc
->texBuffer
->setTexBuffer2
) (pcp
->driContext
,
329 pdraw
->base
.textureTarget
,
330 pdraw
->base
.textureFormat
,
334 (*psc
->texBuffer
->setTexBuffer
) (pcp
->driContext
,
335 pdraw
->base
.textureTarget
,
342 drisw_release_tex_image(Display
* dpy
, GLXDrawable drawable
, int buffer
)
344 #if __DRI_TEX_BUFFER_VERSION >= 3
345 struct glx_context
*gc
= __glXGetCurrentContext();
346 struct dri2_context
*pcp
= (struct dri2_context
*) gc
;
347 __GLXDRIdrawable
*base
= GetGLXDRIDrawable(dpy
, drawable
);
348 struct glx_display
*dpyPriv
= __glXInitialize(dpy
);
349 struct dri2_drawable
*pdraw
= (struct dri2_drawable
*) base
;
350 struct dri2_screen
*psc
;
353 psc
= (struct dri2_screen
*) base
->psc
;
358 if (psc
->texBuffer
->base
.version
>= 3 &&
359 psc
->texBuffer
->releaseTexBuffer
!= NULL
) {
360 (*psc
->texBuffer
->releaseTexBuffer
) (pcp
->driContext
,
361 pdraw
->base
.textureTarget
,
368 static const struct glx_context_vtable drisw_context_vtable
= {
369 drisw_destroy_context
,
371 drisw_unbind_context
,
375 drisw_bind_tex_image
,
376 drisw_release_tex_image
,
377 NULL
, /* get_proc_address */
380 static struct glx_context
*
381 drisw_create_context(struct glx_screen
*base
,
382 struct glx_config
*config_base
,
383 struct glx_context
*shareList
, int renderType
)
385 struct drisw_context
*pcp
, *pcp_shared
;
386 __GLXDRIconfigPrivate
*config
= (__GLXDRIconfigPrivate
*) config_base
;
387 struct drisw_screen
*psc
= (struct drisw_screen
*) base
;
388 __DRIcontext
*shared
= NULL
;
390 if (!psc
->base
.driScreen
)
393 /* Check the renderType value */
394 if (!validate_renderType_against_config(config_base
, renderType
))
398 /* If the shareList context is not a DRISW context, we cannot possibly
399 * create a DRISW context that shares it.
401 if (shareList
->vtable
->destroy
!= drisw_destroy_context
) {
405 pcp_shared
= (struct drisw_context
*) shareList
;
406 shared
= pcp_shared
->driContext
;
409 pcp
= calloc(1, sizeof *pcp
);
413 if (!glx_context_init(&pcp
->base
, &psc
->base
, &config
->base
)) {
418 pcp
->base
.renderType
= renderType
;
421 (*psc
->core
->createNewContext
) (psc
->driScreen
,
422 config
->driConfig
, shared
, pcp
);
423 if (pcp
->driContext
== NULL
) {
428 pcp
->base
.vtable
= &drisw_context_vtable
;
433 static struct glx_context
*
434 drisw_create_context_attribs(struct glx_screen
*base
,
435 struct glx_config
*config_base
,
436 struct glx_context
*shareList
,
437 unsigned num_attribs
,
438 const uint32_t *attribs
,
441 struct drisw_context
*pcp
, *pcp_shared
;
442 __GLXDRIconfigPrivate
*config
= (__GLXDRIconfigPrivate
*) config_base
;
443 struct drisw_screen
*psc
= (struct drisw_screen
*) base
;
444 __DRIcontext
*shared
= NULL
;
452 uint32_t ctx_attribs
[2 * 4];
453 unsigned num_ctx_attribs
= 0;
455 if (!psc
->base
.driScreen
)
458 if (psc
->swrast
->base
.version
< 3)
461 /* Remap the GLX tokens to DRI2 tokens.
463 if (!dri2_convert_glx_attribs(num_attribs
, attribs
,
464 &major_ver
, &minor_ver
, &renderType
, &flags
,
465 &api
, &reset
, error
))
468 /* Check the renderType value */
469 if (!validate_renderType_against_config(config_base
, renderType
)) {
473 if (reset
!= __DRI_CTX_RESET_NO_NOTIFICATION
)
477 pcp_shared
= (struct drisw_context
*) shareList
;
478 shared
= pcp_shared
->driContext
;
481 pcp
= calloc(1, sizeof *pcp
);
485 if (!glx_context_init(&pcp
->base
, &psc
->base
, &config
->base
)) {
490 ctx_attribs
[num_ctx_attribs
++] = __DRI_CTX_ATTRIB_MAJOR_VERSION
;
491 ctx_attribs
[num_ctx_attribs
++] = major_ver
;
492 ctx_attribs
[num_ctx_attribs
++] = __DRI_CTX_ATTRIB_MINOR_VERSION
;
493 ctx_attribs
[num_ctx_attribs
++] = minor_ver
;
496 ctx_attribs
[num_ctx_attribs
++] = __DRI_CTX_ATTRIB_FLAGS
;
498 /* The current __DRI_CTX_FLAG_* values are identical to the
499 * GLX_CONTEXT_*_BIT values.
501 ctx_attribs
[num_ctx_attribs
++] = flags
;
504 pcp
->base
.renderType
= renderType
;
507 (*psc
->swrast
->createContextAttribs
) (psc
->driScreen
,
515 if (pcp
->driContext
== NULL
) {
520 pcp
->base
.vtable
= &drisw_context_vtable
;
526 driswDestroyDrawable(__GLXDRIdrawable
* pdraw
)
528 struct drisw_drawable
*pdp
= (struct drisw_drawable
*) pdraw
;
529 struct drisw_screen
*psc
= (struct drisw_screen
*) pdp
->base
.psc
;
531 (*psc
->core
->destroyDrawable
) (pdp
->driDrawable
);
533 XDestroyDrawable(pdp
, pdraw
->psc
->dpy
, pdraw
->drawable
);
537 static __GLXDRIdrawable
*
538 driswCreateDrawable(struct glx_screen
*base
, XID xDrawable
,
539 GLXDrawable drawable
, struct glx_config
*modes
)
541 struct drisw_drawable
*pdp
;
542 __GLXDRIconfigPrivate
*config
= (__GLXDRIconfigPrivate
*) modes
;
543 struct drisw_screen
*psc
= (struct drisw_screen
*) base
;
545 const __DRIswrastExtension
*swrast
= psc
->swrast
;
547 pdp
= calloc(1, sizeof(*pdp
));
551 pdp
->base
.xDrawable
= xDrawable
;
552 pdp
->base
.drawable
= drawable
;
553 pdp
->base
.psc
= &psc
->base
;
555 ret
= XCreateDrawable(pdp
, psc
->base
.dpy
, xDrawable
, modes
->visualID
);
561 /* Create a new drawable */
563 (*swrast
->createNewDrawable
) (psc
->driScreen
, config
->driConfig
, pdp
);
565 if (!pdp
->driDrawable
) {
566 XDestroyDrawable(pdp
, psc
->base
.dpy
, xDrawable
);
571 pdp
->base
.destroyDrawable
= driswDestroyDrawable
;
577 driswSwapBuffers(__GLXDRIdrawable
* pdraw
,
578 int64_t target_msc
, int64_t divisor
, int64_t remainder
,
581 struct drisw_drawable
*pdp
= (struct drisw_drawable
*) pdraw
;
582 struct drisw_screen
*psc
= (struct drisw_screen
*) pdp
->base
.psc
;
592 (*psc
->core
->swapBuffers
) (pdp
->driDrawable
);
598 driswCopySubBuffer(__GLXDRIdrawable
* pdraw
,
599 int x
, int y
, int width
, int height
, Bool flush
)
601 struct drisw_drawable
*pdp
= (struct drisw_drawable
*) pdraw
;
602 struct drisw_screen
*psc
= (struct drisw_screen
*) pdp
->base
.psc
;
608 (*psc
->copySubBuffer
->copySubBuffer
) (pdp
->driDrawable
,
609 x
, y
, width
, height
);
613 driswDestroyScreen(struct glx_screen
*base
)
615 struct drisw_screen
*psc
= (struct drisw_screen
*) base
;
617 /* Free the direct rendering per screen data */
618 (*psc
->core
->destroyScreen
) (psc
->driScreen
);
619 driDestroyConfigs(psc
->driver_configs
);
620 psc
->driScreen
= NULL
;
622 dlclose(psc
->driver
);
625 #define SWRAST_DRIVER_NAME "swrast"
633 driver
= driOpenDriver(SWRAST_DRIVER_NAME
);
638 static const struct glx_screen_vtable drisw_screen_vtable
= {
639 drisw_create_context
,
640 drisw_create_context_attribs
644 driswBindExtensions(struct drisw_screen
*psc
, const __DRIextension
**extensions
)
648 __glXEnableDirectExtension(&psc
->base
, "GLX_SGI_make_current_read");
650 if (psc
->swrast
->base
.version
>= 3) {
651 __glXEnableDirectExtension(&psc
->base
, "GLX_ARB_create_context");
652 __glXEnableDirectExtension(&psc
->base
, "GLX_ARB_create_context_profile");
654 /* DRISW version >= 2 implies support for OpenGL ES 2.0.
656 __glXEnableDirectExtension(&psc
->base
,
657 "GLX_EXT_create_context_es2_profile");
660 if (psc
->copySubBuffer
)
661 __glXEnableDirectExtension(&psc
->base
, "GLX_MESA_copy_sub_buffer");
663 /* FIXME: Figure out what other extensions can be ported here from dri2. */
664 for (i
= 0; extensions
[i
]; i
++) {
665 if ((strcmp(extensions
[i
]->name
, __DRI_TEX_BUFFER
) == 0)) {
666 psc
->texBuffer
= (__DRItexBufferExtension
*) extensions
[i
];
667 __glXEnableDirectExtension(&psc
->base
, "GLX_EXT_texture_from_pixmap");
672 static struct glx_screen
*
673 driswCreateScreen(int screen
, struct glx_display
*priv
)
676 const __DRIconfig
**driver_configs
;
677 const __DRIextension
**extensions
;
678 struct drisw_screen
*psc
;
679 struct glx_config
*configs
= NULL
, *visuals
= NULL
;
682 psc
= calloc(1, sizeof *psc
);
686 if (!glx_screen_init(&psc
->base
, screen
, priv
)) {
691 psc
->driver
= driOpenSwrast();
692 if (psc
->driver
== NULL
)
695 extensions
= driGetDriverExtensions(psc
->driver
, SWRAST_DRIVER_NAME
);
696 if (extensions
== NULL
)
699 for (i
= 0; extensions
[i
]; i
++) {
700 if (strcmp(extensions
[i
]->name
, __DRI_CORE
) == 0)
701 psc
->core
= (__DRIcoreExtension
*) extensions
[i
];
702 if (strcmp(extensions
[i
]->name
, __DRI_SWRAST
) == 0)
703 psc
->swrast
= (__DRIswrastExtension
*) extensions
[i
];
704 if (strcmp(extensions
[i
]->name
, __DRI_COPY_SUB_BUFFER
) == 0)
705 psc
->copySubBuffer
= (__DRIcopySubBufferExtension
*) extensions
[i
];
708 if (psc
->core
== NULL
|| psc
->swrast
== NULL
) {
709 ErrorMessageF("core dri extension not found\n");
713 if (psc
->swrast
->base
.version
>= 4) {
715 psc
->swrast
->createNewScreen2(screen
, loader_extensions
,
717 &driver_configs
, psc
);
720 psc
->swrast
->createNewScreen(screen
, loader_extensions
,
721 &driver_configs
, psc
);
723 if (psc
->driScreen
== NULL
) {
724 ErrorMessageF("failed to create dri screen\n");
728 extensions
= psc
->core
->getExtensions(psc
->driScreen
);
729 driswBindExtensions(psc
, extensions
);
731 configs
= driConvertConfigs(psc
->core
, psc
->base
.configs
, driver_configs
);
732 visuals
= driConvertConfigs(psc
->core
, psc
->base
.visuals
, driver_configs
);
734 if (!configs
|| !visuals
)
737 glx_config_destroy_list(psc
->base
.configs
);
738 psc
->base
.configs
= configs
;
739 glx_config_destroy_list(psc
->base
.visuals
);
740 psc
->base
.visuals
= visuals
;
742 psc
->driver_configs
= driver_configs
;
744 psc
->base
.vtable
= &drisw_screen_vtable
;
746 psc
->base
.driScreen
= psp
;
747 psp
->destroyScreen
= driswDestroyScreen
;
748 psp
->createDrawable
= driswCreateDrawable
;
749 psp
->swapBuffers
= driswSwapBuffers
;
751 if (psc
->copySubBuffer
)
752 psp
->copySubBuffer
= driswCopySubBuffer
;
758 glx_config_destroy_list(configs
);
760 glx_config_destroy_list(visuals
);
762 psc
->core
->destroyScreen(psc
->driScreen
);
763 psc
->driScreen
= NULL
;
766 dlclose(psc
->driver
);
767 glx_screen_cleanup(&psc
->base
);
770 CriticalErrorMessageF("failed to load driver: %s\n", SWRAST_DRIVER_NAME
);
775 /* Called from __glXFreeDisplayPrivate.
778 driswDestroyDisplay(__GLXDRIdisplay
* dpy
)
784 * Allocate, initialize and return a __DRIdisplayPrivate object.
785 * This is called from __glXInitialize() when we are given a new
788 _X_HIDDEN __GLXDRIdisplay
*
789 driswCreateDisplay(Display
* dpy
)
791 struct drisw_display
*pdpyp
;
793 pdpyp
= malloc(sizeof *pdpyp
);
797 pdpyp
->base
.destroyDisplay
= driswDestroyDisplay
;
798 pdpyp
->base
.createScreen
= driswCreateScreen
;
803 #endif /* GLX_DIRECT_RENDERING */