2 * Mesa 3-D graphics library
5 * Copyright (C) 2009-2010 Chia-I Wu <olv@0xlab.org>
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the "Software"),
9 * to deal in the Software without restriction, including without limitation
10 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11 * and/or sell copies of the Software, and to permit persons to whom the
12 * Software is furnished to do so, subject to the following conditions:
14 * The above copyright notice and this permission notice shall be included
15 * in all copies or substantial portions of the Software.
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
22 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
23 * DEALINGS IN THE SOFTWARE.
26 #include "util/u_memory.h"
27 #include "util/u_math.h"
28 #include "util/u_format.h"
29 #include "util/u_inlines.h"
30 #include "util/u_hash_table.h"
31 #include "pipe/p_compiler.h"
32 #include "pipe/p_screen.h"
33 #include "pipe/p_context.h"
34 #include "pipe/p_state.h"
35 #include "state_tracker/drm_api.h"
38 #include "native_x11.h"
39 #include "x11_screen.h"
41 enum dri2_surface_type {
42 DRI2_SURFACE_TYPE_WINDOW,
43 DRI2_SURFACE_TYPE_PIXMAP,
47 struct native_display base;
51 struct native_event_handler *event_handler;
54 struct x11_screen *xscr;
56 const char *dri_driver;
57 int dri_major, dri_minor;
59 struct dri2_config *configs;
62 struct util_hash_table *surfaces;
66 struct native_surface base;
68 enum dri2_surface_type type;
69 enum pipe_format color_format;
70 struct dri2_display *dri2dpy;
72 unsigned int server_stamp;
73 unsigned int client_stamp;
75 struct pipe_resource *textures[NUM_NATIVE_ATTACHMENTS];
78 boolean have_back, have_fake;
80 struct x11_drawable_buffer *last_xbufs;
85 struct native_config base;
88 static INLINE struct dri2_display *
89 dri2_display(const struct native_display *ndpy)
91 return (struct dri2_display *) ndpy;
94 static INLINE struct dri2_surface *
95 dri2_surface(const struct native_surface *nsurf)
97 return (struct dri2_surface *) nsurf;
100 static INLINE struct dri2_config *
101 dri2_config(const struct native_config *nconf)
103 return (struct dri2_config *) nconf;
107 * Process the buffers returned by the server.
110 dri2_surface_process_drawable_buffers(struct native_surface *nsurf,
111 struct x11_drawable_buffer *xbufs,
114 struct dri2_surface *dri2surf = dri2_surface(nsurf);
115 struct dri2_display *dri2dpy = dri2surf->dri2dpy;
116 struct pipe_resource templ;
117 struct winsys_handle whandle;
121 /* free the old textures */
122 for (i = 0; i < NUM_NATIVE_ATTACHMENTS; i++)
123 pipe_resource_reference(&dri2surf->textures[i], NULL);
124 dri2surf->valid_mask = 0x0;
126 dri2surf->have_back = FALSE;
127 dri2surf->have_fake = FALSE;
132 memset(&templ, 0, sizeof(templ));
133 templ.target = PIPE_TEXTURE_2D;
134 templ.last_level = 0;
135 templ.width0 = dri2surf->width;
136 templ.height0 = dri2surf->height;
138 templ.format = dri2surf->color_format;
139 templ.bind = PIPE_BIND_RENDER_TARGET;
142 for (i = 0; i < num_xbufs; i++) {
143 struct x11_drawable_buffer *xbuf = &xbufs[i];
145 enum native_attachment natt;
147 switch (xbuf->attachment) {
148 case DRI2BufferFrontLeft:
149 natt = NATIVE_ATTACHMENT_FRONT_LEFT;
150 desc = "DRI2 Front Buffer";
152 case DRI2BufferFakeFrontLeft:
153 natt = NATIVE_ATTACHMENT_FRONT_LEFT;
154 desc = "DRI2 Fake Front Buffer";
155 dri2surf->have_fake = TRUE;
157 case DRI2BufferBackLeft:
158 natt = NATIVE_ATTACHMENT_BACK_LEFT;
159 desc = "DRI2 Back Buffer";
160 dri2surf->have_back = TRUE;
167 if (!desc || dri2surf->textures[natt]) {
169 _eglLog(_EGL_WARNING, "unknown buffer %d", xbuf->attachment);
171 _eglLog(_EGL_WARNING, "both real and fake front buffers are listed");
175 memset(&whandle, 0, sizeof(whandle));
176 whandle.stride = xbuf->pitch;
177 whandle.handle = xbuf->name;
178 dri2surf->textures[natt] = dri2dpy->base.screen->resource_from_handle(
179 dri2dpy->base.screen, &templ, &whandle);
180 if (dri2surf->textures[natt])
181 valid_mask |= 1 << natt;
184 dri2surf->valid_mask = valid_mask;
188 * Get the buffers from the server.
191 dri2_surface_get_buffers(struct native_surface *nsurf, uint buffer_mask)
193 struct dri2_surface *dri2surf = dri2_surface(nsurf);
194 struct dri2_display *dri2dpy = dri2surf->dri2dpy;
195 unsigned int dri2atts[NUM_NATIVE_ATTACHMENTS];
196 int num_ins, num_outs, att;
197 struct x11_drawable_buffer *xbufs;
199 /* prepare the attachments */
201 for (att = 0; att < NUM_NATIVE_ATTACHMENTS; att++) {
202 if (native_attachment_mask_test(buffer_mask, att)) {
203 unsigned int dri2att;
206 case NATIVE_ATTACHMENT_FRONT_LEFT:
207 dri2att = DRI2BufferFrontLeft;
209 case NATIVE_ATTACHMENT_BACK_LEFT:
210 dri2att = DRI2BufferBackLeft;
212 case NATIVE_ATTACHMENT_FRONT_RIGHT:
213 dri2att = DRI2BufferFrontRight;
215 case NATIVE_ATTACHMENT_BACK_RIGHT:
216 dri2att = DRI2BufferBackRight;
224 dri2atts[num_ins] = dri2att;
229 xbufs = x11_drawable_get_buffers(dri2dpy->xscr, dri2surf->drawable,
230 &dri2surf->width, &dri2surf->height,
231 dri2atts, FALSE, num_ins, &num_outs);
233 /* we should be able to do better... */
234 if (xbufs && dri2surf->last_num_xbufs == num_outs &&
235 memcmp(dri2surf->last_xbufs, xbufs, sizeof(*xbufs) * num_outs) == 0) {
237 dri2surf->client_stamp = dri2surf->server_stamp;
241 dri2_surface_process_drawable_buffers(&dri2surf->base, xbufs, num_outs);
243 dri2surf->server_stamp++;
244 dri2surf->client_stamp = dri2surf->server_stamp;
246 if (dri2surf->last_xbufs)
247 free(dri2surf->last_xbufs);
248 dri2surf->last_xbufs = xbufs;
249 dri2surf->last_num_xbufs = num_outs;
253 * Update the buffers of the surface. This is a slow function due to the
254 * round-trip to the server.
257 dri2_surface_update_buffers(struct native_surface *nsurf, uint buffer_mask)
259 struct dri2_surface *dri2surf = dri2_surface(nsurf);
261 dri2_surface_get_buffers(&dri2surf->base, buffer_mask);
263 return ((dri2surf->valid_mask & buffer_mask) == buffer_mask);
267 * Return TRUE if the surface receives DRI2_InvalidateBuffers events.
269 static INLINE boolean
270 dri2_surface_receive_events(struct native_surface *nsurf)
272 struct dri2_surface *dri2surf = dri2_surface(nsurf);
273 return (dri2surf->dri2dpy->dri_minor >= 3);
277 dri2_surface_flush_frontbuffer(struct native_surface *nsurf)
279 struct dri2_surface *dri2surf = dri2_surface(nsurf);
280 struct dri2_display *dri2dpy = dri2surf->dri2dpy;
282 /* copy to real front buffer */
283 if (dri2surf->have_fake)
284 x11_drawable_copy_buffers(dri2dpy->xscr, dri2surf->drawable,
285 0, 0, dri2surf->width, dri2surf->height,
286 DRI2BufferFakeFrontLeft, DRI2BufferFrontLeft);
288 /* force buffers to be updated in next validation call */
289 if (!dri2_surface_receive_events(&dri2surf->base)) {
290 dri2surf->server_stamp++;
291 dri2dpy->event_handler->invalid_surface(&dri2dpy->base,
292 &dri2surf->base, dri2surf->server_stamp);
299 dri2_surface_swap_buffers(struct native_surface *nsurf)
301 struct dri2_surface *dri2surf = dri2_surface(nsurf);
302 struct dri2_display *dri2dpy = dri2surf->dri2dpy;
304 /* copy to front buffer */
305 if (dri2surf->have_back)
306 x11_drawable_copy_buffers(dri2dpy->xscr, dri2surf->drawable,
307 0, 0, dri2surf->width, dri2surf->height,
308 DRI2BufferBackLeft, DRI2BufferFrontLeft);
310 /* and update fake front buffer */
311 if (dri2surf->have_fake)
312 x11_drawable_copy_buffers(dri2dpy->xscr, dri2surf->drawable,
313 0, 0, dri2surf->width, dri2surf->height,
314 DRI2BufferFrontLeft, DRI2BufferFakeFrontLeft);
316 /* force buffers to be updated in next validation call */
317 if (!dri2_surface_receive_events(&dri2surf->base)) {
318 dri2surf->server_stamp++;
319 dri2dpy->event_handler->invalid_surface(&dri2dpy->base,
320 &dri2surf->base, dri2surf->server_stamp);
327 dri2_surface_validate(struct native_surface *nsurf, uint attachment_mask,
328 unsigned int *seq_num, struct pipe_resource **textures,
329 int *width, int *height)
331 struct dri2_surface *dri2surf = dri2_surface(nsurf);
333 if (dri2surf->server_stamp != dri2surf->client_stamp ||
334 (dri2surf->valid_mask & attachment_mask) != attachment_mask) {
335 if (!dri2_surface_update_buffers(&dri2surf->base, attachment_mask))
340 *seq_num = dri2surf->client_stamp;
344 for (att = 0; att < NUM_NATIVE_ATTACHMENTS; att++) {
345 if (native_attachment_mask_test(attachment_mask, att)) {
346 struct pipe_resource *ptex = dri2surf->textures[att];
348 textures[att] = NULL;
349 pipe_resource_reference(&textures[att], ptex);
355 *width = dri2surf->width;
357 *height = dri2surf->height;
363 dri2_surface_wait(struct native_surface *nsurf)
365 struct dri2_surface *dri2surf = dri2_surface(nsurf);
366 struct dri2_display *dri2dpy = dri2surf->dri2dpy;
368 if (dri2surf->have_fake) {
369 x11_drawable_copy_buffers(dri2dpy->xscr, dri2surf->drawable,
370 0, 0, dri2surf->width, dri2surf->height,
371 DRI2BufferFrontLeft, DRI2BufferFakeFrontLeft);
376 dri2_surface_destroy(struct native_surface *nsurf)
378 struct dri2_surface *dri2surf = dri2_surface(nsurf);
381 if (dri2surf->last_xbufs)
382 free(dri2surf->last_xbufs);
384 for (i = 0; i < NUM_NATIVE_ATTACHMENTS; i++) {
385 struct pipe_resource *ptex = dri2surf->textures[i];
386 pipe_resource_reference(&ptex, NULL);
389 if (dri2surf->drawable) {
390 x11_drawable_enable_dri2(dri2surf->dri2dpy->xscr,
391 dri2surf->drawable, FALSE);
393 util_hash_table_remove(dri2surf->dri2dpy->surfaces,
394 (void *) dri2surf->drawable);
399 static struct dri2_surface *
400 dri2_display_create_surface(struct native_display *ndpy,
401 enum dri2_surface_type type,
403 const struct native_config *nconf)
405 struct dri2_display *dri2dpy = dri2_display(ndpy);
406 struct dri2_config *dri2conf = dri2_config(nconf);
407 struct dri2_surface *dri2surf;
409 dri2surf = CALLOC_STRUCT(dri2_surface);
413 dri2surf->dri2dpy = dri2dpy;
414 dri2surf->type = type;
415 dri2surf->drawable = drawable;
416 dri2surf->color_format = dri2conf->base.color_format;
418 dri2surf->base.destroy = dri2_surface_destroy;
419 dri2surf->base.swap_buffers = dri2_surface_swap_buffers;
420 dri2surf->base.flush_frontbuffer = dri2_surface_flush_frontbuffer;
421 dri2surf->base.validate = dri2_surface_validate;
422 dri2surf->base.wait = dri2_surface_wait;
425 x11_drawable_enable_dri2(dri2dpy->xscr, drawable, TRUE);
426 /* initialize the geometry */
427 dri2_surface_update_buffers(&dri2surf->base, 0x0);
429 util_hash_table_set(dri2surf->dri2dpy->surfaces,
430 (void *) dri2surf->drawable, (void *) &dri2surf->base);
436 static struct native_surface *
437 dri2_display_create_window_surface(struct native_display *ndpy,
438 EGLNativeWindowType win,
439 const struct native_config *nconf)
441 struct dri2_surface *dri2surf;
443 dri2surf = dri2_display_create_surface(ndpy, DRI2_SURFACE_TYPE_WINDOW,
444 (Drawable) win, nconf);
445 return (dri2surf) ? &dri2surf->base : NULL;
448 static struct native_surface *
449 dri2_display_create_pixmap_surface(struct native_display *ndpy,
450 EGLNativePixmapType pix,
451 const struct native_config *nconf)
453 struct dri2_surface *dri2surf;
455 dri2surf = dri2_display_create_surface(ndpy, DRI2_SURFACE_TYPE_PIXMAP,
456 (Drawable) pix, nconf);
457 return (dri2surf) ? &dri2surf->base : NULL;
461 choose_color_format(const __GLcontextModes *mode, enum pipe_format formats[32])
465 switch (mode->rgbBits) {
467 formats[count++] = PIPE_FORMAT_B8G8R8A8_UNORM;
468 formats[count++] = PIPE_FORMAT_A8R8G8B8_UNORM;
471 formats[count++] = PIPE_FORMAT_B8G8R8X8_UNORM;
472 formats[count++] = PIPE_FORMAT_X8R8G8B8_UNORM;
473 formats[count++] = PIPE_FORMAT_B8G8R8A8_UNORM;
474 formats[count++] = PIPE_FORMAT_A8R8G8B8_UNORM;
477 formats[count++] = PIPE_FORMAT_B5G6R5_UNORM;
487 choose_depth_stencil_format(const __GLcontextModes *mode,
488 enum pipe_format formats[32])
492 switch (mode->depthBits) {
494 formats[count++] = PIPE_FORMAT_Z32_UNORM;
497 if (mode->stencilBits) {
498 formats[count++] = PIPE_FORMAT_Z24_UNORM_S8_USCALED;
499 formats[count++] = PIPE_FORMAT_S8_USCALED_Z24_UNORM;
502 formats[count++] = PIPE_FORMAT_Z24X8_UNORM;
503 formats[count++] = PIPE_FORMAT_X8Z24_UNORM;
507 formats[count++] = PIPE_FORMAT_Z16_UNORM;
517 is_format_supported(struct pipe_screen *screen,
518 enum pipe_format fmt, boolean is_color)
520 return screen->is_format_supported(screen, fmt, PIPE_TEXTURE_2D,
521 (is_color) ? PIPE_BIND_RENDER_TARGET :
522 PIPE_BIND_DEPTH_STENCIL, 0);
526 dri2_display_convert_config(struct native_display *ndpy,
527 const __GLcontextModes *mode,
528 struct native_config *nconf)
530 enum pipe_format formats[32];
533 if (!(mode->renderType & GLX_RGBA_BIT) || !mode->rgbMode)
536 /* skip single-buffered configs */
537 if (!mode->doubleBufferMode)
541 nconf->mode.renderType = GLX_RGBA_BIT;
542 nconf->mode.rgbMode = TRUE;
543 /* pbuffer is always supported */
544 nconf->mode.drawableType |= GLX_PBUFFER_BIT;
545 /* the swap method is always copy */
546 nconf->mode.swapMethod = GLX_SWAP_COPY_OML;
549 nconf->mode.rgbBits =
550 nconf->mode.redBits + nconf->mode.greenBits +
551 nconf->mode.blueBits + nconf->mode.alphaBits;
552 if (!(nconf->mode.drawableType & GLX_WINDOW_BIT)) {
553 nconf->mode.visualID = 0;
554 nconf->mode.visualType = GLX_NONE;
556 if (!(nconf->mode.drawableType & GLX_PBUFFER_BIT)) {
557 nconf->mode.bindToTextureRgb = FALSE;
558 nconf->mode.bindToTextureRgba = FALSE;
561 nconf->color_format = PIPE_FORMAT_NONE;
562 nconf->depth_format = PIPE_FORMAT_NONE;
563 nconf->stencil_format = PIPE_FORMAT_NONE;
565 /* choose color format */
566 num_formats = choose_color_format(mode, formats);
567 for (i = 0; i < num_formats; i++) {
568 if (is_format_supported(ndpy->screen, formats[i], TRUE)) {
569 nconf->color_format = formats[i];
573 if (nconf->color_format == PIPE_FORMAT_NONE)
576 /* choose depth/stencil format */
577 num_formats = choose_depth_stencil_format(mode, formats);
578 for (i = 0; i < num_formats; i++) {
579 if (is_format_supported(ndpy->screen, formats[i], FALSE)) {
580 nconf->depth_format = formats[i];
581 nconf->stencil_format = formats[i];
585 if ((nconf->mode.depthBits && nconf->depth_format == PIPE_FORMAT_NONE) ||
586 (nconf->mode.stencilBits && nconf->stencil_format == PIPE_FORMAT_NONE))
592 static const struct native_config **
593 dri2_display_get_configs(struct native_display *ndpy, int *num_configs)
595 struct dri2_display *dri2dpy = dri2_display(ndpy);
596 const struct native_config **configs;
600 if (!dri2dpy->configs) {
601 const __GLcontextModes *modes;
602 int num_modes, count;
604 modes = x11_screen_get_glx_configs(dri2dpy->xscr);
607 num_modes = x11_context_modes_count(modes);
609 dri2dpy->configs = calloc(num_modes, sizeof(*dri2dpy->configs));
610 if (!dri2dpy->configs)
614 for (i = 0; i < num_modes; i++) {
615 struct native_config *nconf = &dri2dpy->configs[count].base;
616 if (dri2_display_convert_config(&dri2dpy->base, modes, nconf))
621 dri2dpy->num_configs = count;
624 configs = malloc(dri2dpy->num_configs * sizeof(*configs));
626 for (i = 0; i < dri2dpy->num_configs; i++)
627 configs[i] = (const struct native_config *) &dri2dpy->configs[i];
629 *num_configs = dri2dpy->num_configs;
636 dri2_display_is_pixmap_supported(struct native_display *ndpy,
637 EGLNativePixmapType pix,
638 const struct native_config *nconf)
640 struct dri2_display *dri2dpy = dri2_display(ndpy);
641 uint depth, nconf_depth;
643 depth = x11_drawable_get_depth(dri2dpy->xscr, (Drawable) pix);
644 nconf_depth = util_format_get_blocksizebits(nconf->color_format);
646 /* simple depth match for now */
647 return (depth == nconf_depth || (depth == 24 && depth + 8 == nconf_depth));
651 dri2_display_get_param(struct native_display *ndpy,
652 enum native_param_type param)
657 case NATIVE_PARAM_USE_NATIVE_BUFFER:
658 /* DRI2GetBuffers use the native buffers */
670 dri2_display_destroy(struct native_display *ndpy)
672 struct dri2_display *dri2dpy = dri2_display(ndpy);
674 if (dri2dpy->configs)
675 free(dri2dpy->configs);
677 if (dri2dpy->base.screen)
678 dri2dpy->base.screen->destroy(dri2dpy->base.screen);
680 if (dri2dpy->surfaces)
681 util_hash_table_destroy(dri2dpy->surfaces);
684 x11_screen_destroy(dri2dpy->xscr);
685 if (dri2dpy->own_dpy)
686 XCloseDisplay(dri2dpy->dpy);
687 if (dri2dpy->api && dri2dpy->api->destroy)
688 dri2dpy->api->destroy(dri2dpy->api);
693 dri2_display_invalidate_buffers(struct x11_screen *xscr, Drawable drawable,
696 struct native_display *ndpy = (struct native_display* ) user_data;
697 struct dri2_display *dri2dpy = dri2_display(ndpy);
698 struct native_surface *nsurf;
699 struct dri2_surface *dri2surf;
701 nsurf = (struct native_surface *)
702 util_hash_table_get(dri2dpy->surfaces, (void *) drawable);
706 dri2surf = dri2_surface(nsurf);
708 dri2surf->server_stamp++;
709 dri2dpy->event_handler->invalid_surface(&dri2dpy->base,
710 &dri2surf->base, dri2surf->server_stamp);
714 * Initialize DRI2 and pipe screen.
717 dri2_display_init_screen(struct native_display *ndpy)
719 struct dri2_display *dri2dpy = dri2_display(ndpy);
720 const char *driver = dri2dpy->api->name;
721 struct drm_create_screen_arg arg;
724 if (!x11_screen_support(dri2dpy->xscr, X11_SCREEN_EXTENSION_DRI2) ||
725 !x11_screen_support(dri2dpy->xscr, X11_SCREEN_EXTENSION_GLX)) {
726 _eglLog(_EGL_WARNING, "GLX/DRI2 is not supported");
730 dri2dpy->dri_driver = x11_screen_probe_dri2(dri2dpy->xscr,
731 &dri2dpy->dri_major, &dri2dpy->dri_minor);
732 if (!dri2dpy->dri_driver || !driver ||
733 strcmp(dri2dpy->dri_driver, driver) != 0) {
734 _eglLog(_EGL_WARNING, "Driver mismatch: %s != %s",
735 dri2dpy->dri_driver, dri2dpy->api->name);
739 fd = x11_screen_enable_dri2(dri2dpy->xscr,
740 dri2_display_invalidate_buffers, &dri2dpy->base);
744 memset(&arg, 0, sizeof(arg));
745 arg.mode = DRM_CREATE_NORMAL;
746 dri2dpy->base.screen = dri2dpy->api->create_screen(dri2dpy->api, fd, &arg);
747 if (!dri2dpy->base.screen) {
748 _eglLog(_EGL_WARNING, "failed to create DRM screen");
756 dri2_display_hash_table_hash(void *key)
758 XID drawable = pointer_to_uintptr(key);
759 return (unsigned) drawable;
763 dri2_display_hash_table_compare(void *key1, void *key2)
765 return (key1 - key2);
768 struct native_display *
769 x11_create_dri2_display(EGLNativeDisplayType dpy,
770 struct native_event_handler *event_handler,
773 struct dri2_display *dri2dpy;
775 dri2dpy = CALLOC_STRUCT(dri2_display);
779 dri2dpy->event_handler = event_handler;
784 dri2dpy->dpy = XOpenDisplay(NULL);
786 dri2_display_destroy(&dri2dpy->base);
789 dri2dpy->own_dpy = TRUE;
792 dri2dpy->xscr_number = DefaultScreen(dri2dpy->dpy);
793 dri2dpy->xscr = x11_screen_create(dri2dpy->dpy, dri2dpy->xscr_number);
794 if (!dri2dpy->xscr) {
795 dri2_display_destroy(&dri2dpy->base);
799 if (!dri2_display_init_screen(&dri2dpy->base)) {
800 dri2_display_destroy(&dri2dpy->base);
804 dri2dpy->surfaces = util_hash_table_create(dri2_display_hash_table_hash,
805 dri2_display_hash_table_compare);
806 if (!dri2dpy->surfaces) {
807 dri2_display_destroy(&dri2dpy->base);
811 dri2dpy->base.destroy = dri2_display_destroy;
812 dri2dpy->base.get_param = dri2_display_get_param;
813 dri2dpy->base.get_configs = dri2_display_get_configs;
814 dri2dpy->base.is_pixmap_supported = dri2_display_is_pixmap_supported;
815 dri2dpy->base.create_window_surface = dri2_display_create_window_surface;
816 dri2dpy->base.create_pixmap_surface = dri2_display_create_pixmap_surface;
818 return &dri2dpy->base;