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egl/wayland: Use MIN2 for wl_drm version
[mesa.git] / src / egl / drivers / dri2 / platform_wayland.c
1 /*
2 * Copyright © 2011-2012 Intel Corporation
3 * Copyright © 2012 Collabora, Ltd.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice (including the next
13 * paragraph) shall be included in all copies or substantial portions of the
14 * Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
17 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
19 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
20 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
21 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
23 * DEALINGS IN THE SOFTWARE.
24 *
25 * Authors:
26 * Kristian Høgsberg <krh@bitplanet.net>
27 * Benjamin Franzke <benjaminfranzke@googlemail.com>
28 */
29
30 #include <stdint.h>
31 #include <stdlib.h>
32 #include <string.h>
33 #include <limits.h>
34 #include <dlfcn.h>
35 #include <errno.h>
36 #include <unistd.h>
37 #include <fcntl.h>
38 #include <xf86drm.h>
39 #include <sys/mman.h>
40
41 #include "egl_dri2.h"
42 #include "egl_dri2_fallbacks.h"
43 #include "loader.h"
44
45 #include <wayland-client.h>
46 #include "wayland-drm-client-protocol.h"
47
48 enum wl_drm_format_flags {
49 HAS_ARGB8888 = 1,
50 HAS_XRGB8888 = 2,
51 HAS_RGB565 = 4,
52 };
53
54 static EGLBoolean
55 dri2_wl_swap_interval(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf,
56 EGLint interval);
57
58 static int
59 roundtrip(struct dri2_egl_display *dri2_dpy)
60 {
61 return wl_display_roundtrip_queue(dri2_dpy->wl_dpy, dri2_dpy->wl_queue);
62 }
63
64 static void
65 wl_buffer_release(void *data, struct wl_buffer *buffer)
66 {
67 struct dri2_egl_surface *dri2_surf = data;
68 int i;
69
70 for (i = 0; i < ARRAY_SIZE(dri2_surf->color_buffers); ++i)
71 if (dri2_surf->color_buffers[i].wl_buffer == buffer)
72 break;
73
74 if (i == ARRAY_SIZE(dri2_surf->color_buffers)) {
75 wl_buffer_destroy(buffer);
76 return;
77 }
78
79 dri2_surf->color_buffers[i].locked = false;
80 }
81
82 static const struct wl_buffer_listener wl_buffer_listener = {
83 .release = wl_buffer_release
84 };
85
86 static void
87 resize_callback(struct wl_egl_window *wl_win, void *data)
88 {
89 struct dri2_egl_surface *dri2_surf = data;
90 struct dri2_egl_display *dri2_dpy =
91 dri2_egl_display(dri2_surf->base.Resource.Display);
92
93 dri2_dpy->flush->invalidate(dri2_surf->dri_drawable);
94 }
95
96 static void
97 destroy_window_callback(void *data)
98 {
99 struct dri2_egl_surface *dri2_surf = data;
100 dri2_surf->wl_win = NULL;
101 }
102
103 /**
104 * Called via eglCreateWindowSurface(), drv->API.CreateWindowSurface().
105 */
106 static _EGLSurface *
107 dri2_wl_create_window_surface(_EGLDriver *drv, _EGLDisplay *disp,
108 _EGLConfig *conf, void *native_window,
109 const EGLint *attrib_list)
110 {
111 __DRIcreateNewDrawableFunc createNewDrawable;
112 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
113 struct dri2_egl_config *dri2_conf = dri2_egl_config(conf);
114 struct wl_egl_window *window = native_window;
115 struct dri2_egl_surface *dri2_surf;
116 const __DRIconfig *config;
117
118 dri2_surf = calloc(1, sizeof *dri2_surf);
119 if (!dri2_surf) {
120 _eglError(EGL_BAD_ALLOC, "dri2_create_surface");
121 return NULL;
122 }
123
124 if (!_eglInitSurface(&dri2_surf->base, disp, EGL_WINDOW_BIT, conf, attrib_list))
125 goto cleanup_surf;
126
127 if (dri2_dpy->wl_drm) {
128 if (conf->RedSize == 5)
129 dri2_surf->format = WL_DRM_FORMAT_RGB565;
130 else if (conf->AlphaSize == 0)
131 dri2_surf->format = WL_DRM_FORMAT_XRGB8888;
132 else
133 dri2_surf->format = WL_DRM_FORMAT_ARGB8888;
134 } else {
135 assert(dri2_dpy->wl_shm);
136 if (conf->RedSize == 5)
137 dri2_surf->format = WL_SHM_FORMAT_RGB565;
138 else if (conf->AlphaSize == 0)
139 dri2_surf->format = WL_SHM_FORMAT_XRGB8888;
140 else
141 dri2_surf->format = WL_SHM_FORMAT_ARGB8888;
142 }
143
144 if (!window) {
145 _eglError(EGL_BAD_NATIVE_WINDOW, "dri2_create_surface");
146 goto cleanup_surf;
147 }
148
149 dri2_surf->wl_win = window;
150 dri2_surf->wl_queue = wl_display_create_queue(dri2_dpy->wl_dpy);
151 if (!dri2_surf->wl_queue) {
152 _eglError(EGL_BAD_ALLOC, "dri2_create_surface");
153 goto cleanup_surf;
154 }
155
156 if (dri2_dpy->wl_drm) {
157 dri2_surf->wl_drm_wrapper = wl_proxy_create_wrapper(dri2_dpy->wl_drm);
158 if (!dri2_surf->wl_drm_wrapper) {
159 _eglError(EGL_BAD_ALLOC, "dri2_create_surface");
160 goto cleanup_queue;
161 }
162 wl_proxy_set_queue((struct wl_proxy *)dri2_surf->wl_drm_wrapper,
163 dri2_surf->wl_queue);
164 }
165
166 dri2_surf->wl_dpy_wrapper = wl_proxy_create_wrapper(dri2_dpy->wl_dpy);
167 if (!dri2_surf->wl_dpy_wrapper) {
168 _eglError(EGL_BAD_ALLOC, "dri2_create_surface");
169 goto cleanup_drm;
170 }
171 wl_proxy_set_queue((struct wl_proxy *)dri2_surf->wl_dpy_wrapper,
172 dri2_surf->wl_queue);
173
174 dri2_surf->wl_surface_wrapper = wl_proxy_create_wrapper(window->surface);
175 if (!dri2_surf->wl_surface_wrapper) {
176 _eglError(EGL_BAD_ALLOC, "dri2_create_surface");
177 goto cleanup_drm;
178 }
179 wl_proxy_set_queue((struct wl_proxy *)dri2_surf->wl_surface_wrapper,
180 dri2_surf->wl_queue);
181
182 dri2_surf->wl_win->private = dri2_surf;
183 dri2_surf->wl_win->destroy_window_callback = destroy_window_callback;
184
185 dri2_surf->base.Width = -1;
186 dri2_surf->base.Height = -1;
187
188 config = dri2_get_dri_config(dri2_conf, EGL_WINDOW_BIT,
189 dri2_surf->base.GLColorspace);
190
191 if (dri2_dpy->flush)
192 dri2_surf->wl_win->resize_callback = resize_callback;
193
194 if (dri2_dpy->image_driver)
195 createNewDrawable = dri2_dpy->image_driver->createNewDrawable;
196 else if (dri2_dpy->dri2)
197 createNewDrawable = dri2_dpy->dri2->createNewDrawable;
198 else
199 createNewDrawable = dri2_dpy->swrast->createNewDrawable;
200
201 dri2_surf->dri_drawable = (*createNewDrawable)(dri2_dpy->dri_screen, config,
202 dri2_surf);
203 if (dri2_surf->dri_drawable == NULL) {
204 _eglError(EGL_BAD_ALLOC, "createNewDrawable");
205 goto cleanup_surf;
206 }
207
208 dri2_wl_swap_interval(drv, disp, &dri2_surf->base,
209 dri2_dpy->default_swap_interval);
210
211 return &dri2_surf->base;
212
213 cleanup_drm:
214 if (dri2_surf->wl_drm_wrapper)
215 wl_proxy_wrapper_destroy(dri2_surf->wl_drm_wrapper);
216 cleanup_queue:
217 wl_event_queue_destroy(dri2_surf->wl_queue);
218 cleanup_surf:
219 free(dri2_surf);
220
221 return NULL;
222 }
223
224 static _EGLSurface *
225 dri2_wl_create_pixmap_surface(_EGLDriver *drv, _EGLDisplay *disp,
226 _EGLConfig *conf, void *native_window,
227 const EGLint *attrib_list)
228 {
229 /* From the EGL_EXT_platform_wayland spec, version 3:
230 *
231 * It is not valid to call eglCreatePlatformPixmapSurfaceEXT with a <dpy>
232 * that belongs to Wayland. Any such call fails and generates
233 * EGL_BAD_PARAMETER.
234 */
235 _eglError(EGL_BAD_PARAMETER, "cannot create EGL pixmap surfaces on "
236 "Wayland");
237 return NULL;
238 }
239
240 /**
241 * Called via eglDestroySurface(), drv->API.DestroySurface().
242 */
243 static EGLBoolean
244 dri2_wl_destroy_surface(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf)
245 {
246 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
247 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
248
249 (void) drv;
250
251 dri2_dpy->core->destroyDrawable(dri2_surf->dri_drawable);
252
253 for (int i = 0; i < ARRAY_SIZE(dri2_surf->color_buffers); i++) {
254 if (dri2_surf->color_buffers[i].wl_buffer)
255 wl_buffer_destroy(dri2_surf->color_buffers[i].wl_buffer);
256 if (dri2_surf->color_buffers[i].dri_image)
257 dri2_dpy->image->destroyImage(dri2_surf->color_buffers[i].dri_image);
258 if (dri2_surf->color_buffers[i].linear_copy)
259 dri2_dpy->image->destroyImage(dri2_surf->color_buffers[i].linear_copy);
260 if (dri2_surf->color_buffers[i].data)
261 munmap(dri2_surf->color_buffers[i].data,
262 dri2_surf->color_buffers[i].data_size);
263 }
264
265 if (dri2_dpy->dri2) {
266 for (int i = 0; i < __DRI_BUFFER_COUNT; i++)
267 if (dri2_surf->dri_buffers[i] &&
268 dri2_surf->dri_buffers[i]->attachment != __DRI_BUFFER_BACK_LEFT)
269 dri2_dpy->dri2->releaseBuffer(dri2_dpy->dri_screen,
270 dri2_surf->dri_buffers[i]);
271 }
272
273 if (dri2_surf->throttle_callback)
274 wl_callback_destroy(dri2_surf->throttle_callback);
275
276 if (dri2_surf->wl_win) {
277 dri2_surf->wl_win->private = NULL;
278 dri2_surf->wl_win->resize_callback = NULL;
279 dri2_surf->wl_win->destroy_window_callback = NULL;
280 }
281
282 if (dri2_surf->wl_drm_wrapper)
283 wl_proxy_wrapper_destroy(dri2_surf->wl_drm_wrapper);
284 wl_proxy_wrapper_destroy(dri2_surf->wl_surface_wrapper);
285 wl_proxy_wrapper_destroy(dri2_surf->wl_dpy_wrapper);
286 wl_event_queue_destroy(dri2_surf->wl_queue);
287
288 free(surf);
289
290 return EGL_TRUE;
291 }
292
293 static void
294 dri2_wl_release_buffers(struct dri2_egl_surface *dri2_surf)
295 {
296 struct dri2_egl_display *dri2_dpy =
297 dri2_egl_display(dri2_surf->base.Resource.Display);
298
299 for (int i = 0; i < ARRAY_SIZE(dri2_surf->color_buffers); i++) {
300 if (dri2_surf->color_buffers[i].wl_buffer &&
301 !dri2_surf->color_buffers[i].locked)
302 wl_buffer_destroy(dri2_surf->color_buffers[i].wl_buffer);
303 if (dri2_surf->color_buffers[i].dri_image)
304 dri2_dpy->image->destroyImage(dri2_surf->color_buffers[i].dri_image);
305 if (dri2_surf->color_buffers[i].linear_copy)
306 dri2_dpy->image->destroyImage(dri2_surf->color_buffers[i].linear_copy);
307 if (dri2_surf->color_buffers[i].data)
308 munmap(dri2_surf->color_buffers[i].data,
309 dri2_surf->color_buffers[i].data_size);
310
311 dri2_surf->color_buffers[i].wl_buffer = NULL;
312 dri2_surf->color_buffers[i].dri_image = NULL;
313 dri2_surf->color_buffers[i].linear_copy = NULL;
314 dri2_surf->color_buffers[i].data = NULL;
315 dri2_surf->color_buffers[i].locked = false;
316 }
317
318 if (dri2_dpy->dri2) {
319 for (int i = 0; i < __DRI_BUFFER_COUNT; i++)
320 if (dri2_surf->dri_buffers[i] &&
321 dri2_surf->dri_buffers[i]->attachment != __DRI_BUFFER_BACK_LEFT)
322 dri2_dpy->dri2->releaseBuffer(dri2_dpy->dri_screen,
323 dri2_surf->dri_buffers[i]);
324 }
325 }
326
327 static int
328 get_back_bo(struct dri2_egl_surface *dri2_surf)
329 {
330 struct dri2_egl_display *dri2_dpy =
331 dri2_egl_display(dri2_surf->base.Resource.Display);
332 int use_flags;
333 unsigned int dri_image_format;
334
335 /* currently supports three WL DRM formats,
336 * WL_DRM_FORMAT_ARGB8888, WL_DRM_FORMAT_XRGB8888,
337 * and WL_DRM_FORMAT_RGB565
338 */
339 switch (dri2_surf->format) {
340 case WL_DRM_FORMAT_ARGB8888:
341 dri_image_format = __DRI_IMAGE_FORMAT_ARGB8888;
342 break;
343 case WL_DRM_FORMAT_XRGB8888:
344 dri_image_format = __DRI_IMAGE_FORMAT_XRGB8888;
345 break;
346 case WL_DRM_FORMAT_RGB565:
347 dri_image_format = __DRI_IMAGE_FORMAT_RGB565;
348 break;
349 default:
350 /* format is not supported */
351 return -1;
352 }
353
354 /* There might be a buffer release already queued that wasn't processed */
355 wl_display_dispatch_queue_pending(dri2_dpy->wl_dpy, dri2_surf->wl_queue);
356
357 while (dri2_surf->back == NULL) {
358 for (int i = 0; i < ARRAY_SIZE(dri2_surf->color_buffers); i++) {
359 /* Get an unlocked buffer, preferrably one with a dri_buffer
360 * already allocated. */
361 if (dri2_surf->color_buffers[i].locked)
362 continue;
363 if (dri2_surf->back == NULL)
364 dri2_surf->back = &dri2_surf->color_buffers[i];
365 else if (dri2_surf->back->dri_image == NULL)
366 dri2_surf->back = &dri2_surf->color_buffers[i];
367 }
368
369 if (dri2_surf->back)
370 break;
371
372 /* If we don't have a buffer, then block on the server to release one for
373 * us, and try again. */
374 if (wl_display_dispatch_queue(dri2_dpy->wl_dpy, dri2_surf->wl_queue) < 0)
375 return -1;
376 }
377
378 if (dri2_surf->back == NULL)
379 return -1;
380
381 use_flags = __DRI_IMAGE_USE_SHARE | __DRI_IMAGE_USE_BACKBUFFER;
382
383 if (dri2_dpy->is_different_gpu &&
384 dri2_surf->back->linear_copy == NULL) {
385 dri2_surf->back->linear_copy =
386 dri2_dpy->image->createImage(dri2_dpy->dri_screen,
387 dri2_surf->base.Width,
388 dri2_surf->base.Height,
389 dri_image_format,
390 use_flags |
391 __DRI_IMAGE_USE_LINEAR,
392 NULL);
393 if (dri2_surf->back->linear_copy == NULL)
394 return -1;
395 }
396
397 if (dri2_surf->back->dri_image == NULL) {
398 dri2_surf->back->dri_image =
399 dri2_dpy->image->createImage(dri2_dpy->dri_screen,
400 dri2_surf->base.Width,
401 dri2_surf->base.Height,
402 dri_image_format,
403 dri2_dpy->is_different_gpu ?
404 0 : use_flags,
405 NULL);
406 dri2_surf->back->age = 0;
407 }
408 if (dri2_surf->back->dri_image == NULL)
409 return -1;
410
411 dri2_surf->back->locked = true;
412
413 return 0;
414 }
415
416
417 static void
418 back_bo_to_dri_buffer(struct dri2_egl_surface *dri2_surf, __DRIbuffer *buffer)
419 {
420 struct dri2_egl_display *dri2_dpy =
421 dri2_egl_display(dri2_surf->base.Resource.Display);
422 __DRIimage *image;
423 int name, pitch;
424
425 image = dri2_surf->back->dri_image;
426
427 dri2_dpy->image->queryImage(image, __DRI_IMAGE_ATTRIB_NAME, &name);
428 dri2_dpy->image->queryImage(image, __DRI_IMAGE_ATTRIB_STRIDE, &pitch);
429
430 buffer->attachment = __DRI_BUFFER_BACK_LEFT;
431 buffer->name = name;
432 buffer->pitch = pitch;
433 buffer->cpp = 4;
434 buffer->flags = 0;
435 }
436
437 static int
438 get_aux_bo(struct dri2_egl_surface *dri2_surf,
439 unsigned int attachment, unsigned int format, __DRIbuffer *buffer)
440 {
441 struct dri2_egl_display *dri2_dpy =
442 dri2_egl_display(dri2_surf->base.Resource.Display);
443 __DRIbuffer *b = dri2_surf->dri_buffers[attachment];
444
445 if (b == NULL) {
446 b = dri2_dpy->dri2->allocateBuffer(dri2_dpy->dri_screen,
447 attachment, format,
448 dri2_surf->base.Width,
449 dri2_surf->base.Height);
450 dri2_surf->dri_buffers[attachment] = b;
451 }
452 if (b == NULL)
453 return -1;
454
455 memcpy(buffer, b, sizeof *buffer);
456
457 return 0;
458 }
459
460 static int
461 update_buffers(struct dri2_egl_surface *dri2_surf)
462 {
463 struct dri2_egl_display *dri2_dpy =
464 dri2_egl_display(dri2_surf->base.Resource.Display);
465
466 if (dri2_surf->base.Width != dri2_surf->wl_win->width ||
467 dri2_surf->base.Height != dri2_surf->wl_win->height) {
468
469 dri2_wl_release_buffers(dri2_surf);
470
471 dri2_surf->base.Width = dri2_surf->wl_win->width;
472 dri2_surf->base.Height = dri2_surf->wl_win->height;
473 dri2_surf->dx = dri2_surf->wl_win->dx;
474 dri2_surf->dy = dri2_surf->wl_win->dy;
475 }
476
477 if (get_back_bo(dri2_surf) < 0) {
478 _eglError(EGL_BAD_ALLOC, "failed to allocate color buffer");
479 return -1;
480 }
481
482 /* If we have an extra unlocked buffer at this point, we had to do triple
483 * buffering for a while, but now can go back to just double buffering.
484 * That means we can free any unlocked buffer now. */
485 for (int i = 0; i < ARRAY_SIZE(dri2_surf->color_buffers); i++) {
486 if (!dri2_surf->color_buffers[i].locked &&
487 dri2_surf->color_buffers[i].wl_buffer) {
488 wl_buffer_destroy(dri2_surf->color_buffers[i].wl_buffer);
489 dri2_dpy->image->destroyImage(dri2_surf->color_buffers[i].dri_image);
490 if (dri2_dpy->is_different_gpu)
491 dri2_dpy->image->destroyImage(dri2_surf->color_buffers[i].linear_copy);
492 dri2_surf->color_buffers[i].wl_buffer = NULL;
493 dri2_surf->color_buffers[i].dri_image = NULL;
494 dri2_surf->color_buffers[i].linear_copy = NULL;
495 }
496 }
497
498 return 0;
499 }
500
501 static __DRIbuffer *
502 dri2_wl_get_buffers_with_format(__DRIdrawable * driDrawable,
503 int *width, int *height,
504 unsigned int *attachments, int count,
505 int *out_count, void *loaderPrivate)
506 {
507 struct dri2_egl_surface *dri2_surf = loaderPrivate;
508 int i, j;
509
510 if (update_buffers(dri2_surf) < 0)
511 return NULL;
512
513 for (i = 0, j = 0; i < 2 * count; i += 2, j++) {
514 switch (attachments[i]) {
515 case __DRI_BUFFER_BACK_LEFT:
516 back_bo_to_dri_buffer(dri2_surf, &dri2_surf->buffers[j]);
517 break;
518 default:
519 if (get_aux_bo(dri2_surf, attachments[i], attachments[i + 1],
520 &dri2_surf->buffers[j]) < 0) {
521 _eglError(EGL_BAD_ALLOC, "failed to allocate aux buffer");
522 return NULL;
523 }
524 break;
525 }
526 }
527
528 *out_count = j;
529 if (j == 0)
530 return NULL;
531
532 *width = dri2_surf->base.Width;
533 *height = dri2_surf->base.Height;
534
535 return dri2_surf->buffers;
536 }
537
538 static __DRIbuffer *
539 dri2_wl_get_buffers(__DRIdrawable * driDrawable,
540 int *width, int *height,
541 unsigned int *attachments, int count,
542 int *out_count, void *loaderPrivate)
543 {
544 struct dri2_egl_surface *dri2_surf = loaderPrivate;
545 unsigned int *attachments_with_format;
546 __DRIbuffer *buffer;
547 unsigned int bpp;
548
549 switch (dri2_surf->format) {
550 case WL_DRM_FORMAT_ARGB8888:
551 case WL_DRM_FORMAT_XRGB8888:
552 bpp = 32;
553 break;
554 case WL_DRM_FORMAT_RGB565:
555 bpp = 16;
556 break;
557 default:
558 /* format is not supported */
559 return NULL;
560 }
561
562 attachments_with_format = calloc(count, 2 * sizeof(unsigned int));
563 if (!attachments_with_format) {
564 *out_count = 0;
565 return NULL;
566 }
567
568 for (int i = 0; i < count; ++i) {
569 attachments_with_format[2*i] = attachments[i];
570 attachments_with_format[2*i + 1] = bpp;
571 }
572
573 buffer =
574 dri2_wl_get_buffers_with_format(driDrawable,
575 width, height,
576 attachments_with_format, count,
577 out_count, loaderPrivate);
578
579 free(attachments_with_format);
580
581 return buffer;
582 }
583
584 static int
585 image_get_buffers(__DRIdrawable *driDrawable,
586 unsigned int format,
587 uint32_t *stamp,
588 void *loaderPrivate,
589 uint32_t buffer_mask,
590 struct __DRIimageList *buffers)
591 {
592 struct dri2_egl_surface *dri2_surf = loaderPrivate;
593
594 if (update_buffers(dri2_surf) < 0)
595 return 0;
596
597 buffers->image_mask = __DRI_IMAGE_BUFFER_BACK;
598 buffers->back = dri2_surf->back->dri_image;
599
600 return 1;
601 }
602
603 static void
604 dri2_wl_flush_front_buffer(__DRIdrawable * driDrawable, void *loaderPrivate)
605 {
606 (void) driDrawable;
607 (void) loaderPrivate;
608 }
609
610 static const __DRIdri2LoaderExtension dri2_loader_extension = {
611 .base = { __DRI_DRI2_LOADER, 3 },
612
613 .getBuffers = dri2_wl_get_buffers,
614 .flushFrontBuffer = dri2_wl_flush_front_buffer,
615 .getBuffersWithFormat = dri2_wl_get_buffers_with_format,
616 };
617
618 static const __DRIimageLoaderExtension image_loader_extension = {
619 .base = { __DRI_IMAGE_LOADER, 1 },
620
621 .getBuffers = image_get_buffers,
622 .flushFrontBuffer = dri2_wl_flush_front_buffer,
623 };
624
625 static void
626 wayland_throttle_callback(void *data,
627 struct wl_callback *callback,
628 uint32_t time)
629 {
630 struct dri2_egl_surface *dri2_surf = data;
631
632 dri2_surf->throttle_callback = NULL;
633 wl_callback_destroy(callback);
634 }
635
636 static const struct wl_callback_listener throttle_listener = {
637 .done = wayland_throttle_callback
638 };
639
640 static void
641 create_wl_buffer(struct dri2_egl_surface *dri2_surf)
642 {
643 struct dri2_egl_display *dri2_dpy =
644 dri2_egl_display(dri2_surf->base.Resource.Display);
645 __DRIimage *image;
646 int fd, stride, name;
647
648 if (dri2_surf->current->wl_buffer != NULL)
649 return;
650
651 if (dri2_dpy->is_different_gpu) {
652 image = dri2_surf->current->linear_copy;
653 } else {
654 image = dri2_surf->current->dri_image;
655 }
656 if (dri2_dpy->capabilities & WL_DRM_CAPABILITY_PRIME) {
657 dri2_dpy->image->queryImage(image, __DRI_IMAGE_ATTRIB_FD, &fd);
658 dri2_dpy->image->queryImage(image, __DRI_IMAGE_ATTRIB_STRIDE, &stride);
659
660 dri2_surf->current->wl_buffer =
661 wl_drm_create_prime_buffer(dri2_surf->wl_drm_wrapper,
662 fd,
663 dri2_surf->base.Width,
664 dri2_surf->base.Height,
665 dri2_surf->format,
666 0, stride,
667 0, 0,
668 0, 0);
669 close(fd);
670 } else {
671 dri2_dpy->image->queryImage(image, __DRI_IMAGE_ATTRIB_NAME, &name);
672 dri2_dpy->image->queryImage(image, __DRI_IMAGE_ATTRIB_STRIDE, &stride);
673
674 dri2_surf->current->wl_buffer =
675 wl_drm_create_buffer(dri2_surf->wl_drm_wrapper,
676 name,
677 dri2_surf->base.Width,
678 dri2_surf->base.Height,
679 stride,
680 dri2_surf->format);
681 }
682
683 wl_buffer_add_listener(dri2_surf->current->wl_buffer,
684 &wl_buffer_listener, dri2_surf);
685 }
686
687 static EGLBoolean
688 try_damage_buffer(struct dri2_egl_surface *dri2_surf,
689 const EGLint *rects,
690 EGLint n_rects)
691 {
692 if (wl_proxy_get_version((struct wl_proxy *) dri2_surf->wl_surface_wrapper)
693 < WL_SURFACE_DAMAGE_BUFFER_SINCE_VERSION)
694 return EGL_FALSE;
695
696 for (int i = 0; i < n_rects; i++) {
697 const int *rect = &rects[i * 4];
698
699 wl_surface_damage_buffer(dri2_surf->wl_surface_wrapper,
700 rect[0],
701 dri2_surf->base.Height - rect[1] - rect[3],
702 rect[2], rect[3]);
703 }
704 return EGL_TRUE;
705 }
706 /**
707 * Called via eglSwapBuffers(), drv->API.SwapBuffers().
708 */
709 static EGLBoolean
710 dri2_wl_swap_buffers_with_damage(_EGLDriver *drv,
711 _EGLDisplay *disp,
712 _EGLSurface *draw,
713 const EGLint *rects,
714 EGLint n_rects)
715 {
716 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
717 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(draw);
718
719 while (dri2_surf->throttle_callback != NULL)
720 if (wl_display_dispatch_queue(dri2_dpy->wl_dpy,
721 dri2_surf->wl_queue) == -1)
722 return -1;
723
724 for (int i = 0; i < ARRAY_SIZE(dri2_surf->color_buffers); i++)
725 if (dri2_surf->color_buffers[i].age > 0)
726 dri2_surf->color_buffers[i].age++;
727
728 /* Make sure we have a back buffer in case we're swapping without ever
729 * rendering. */
730 if (get_back_bo(dri2_surf) < 0)
731 return _eglError(EGL_BAD_ALLOC, "dri2_swap_buffers");
732
733 if (draw->SwapInterval > 0) {
734 dri2_surf->throttle_callback =
735 wl_surface_frame(dri2_surf->wl_surface_wrapper);
736 wl_callback_add_listener(dri2_surf->throttle_callback,
737 &throttle_listener, dri2_surf);
738 }
739
740 dri2_surf->back->age = 1;
741 dri2_surf->current = dri2_surf->back;
742 dri2_surf->back = NULL;
743
744 create_wl_buffer(dri2_surf);
745
746 wl_surface_attach(dri2_surf->wl_surface_wrapper,
747 dri2_surf->current->wl_buffer,
748 dri2_surf->dx, dri2_surf->dy);
749
750 dri2_surf->wl_win->attached_width = dri2_surf->base.Width;
751 dri2_surf->wl_win->attached_height = dri2_surf->base.Height;
752 /* reset resize growing parameters */
753 dri2_surf->dx = 0;
754 dri2_surf->dy = 0;
755
756 /* If the compositor doesn't support damage_buffer, we deliberately
757 * ignore the damage region and post maximum damage, due to
758 * https://bugs.freedesktop.org/78190 */
759 if (!n_rects || !try_damage_buffer(dri2_surf, rects, n_rects))
760 wl_surface_damage(dri2_surf->wl_surface_wrapper,
761 0, 0, INT32_MAX, INT32_MAX);
762
763 if (dri2_dpy->is_different_gpu) {
764 _EGLContext *ctx = _eglGetCurrentContext();
765 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
766 dri2_dpy->image->blitImage(dri2_ctx->dri_context,
767 dri2_surf->current->linear_copy,
768 dri2_surf->current->dri_image,
769 0, 0, dri2_surf->base.Width,
770 dri2_surf->base.Height,
771 0, 0, dri2_surf->base.Width,
772 dri2_surf->base.Height, 0);
773 }
774
775 dri2_flush_drawable_for_swapbuffers(disp, draw);
776 dri2_dpy->flush->invalidate(dri2_surf->dri_drawable);
777
778 wl_surface_commit(dri2_surf->wl_surface_wrapper);
779
780 /* If we're not waiting for a frame callback then we'll at least throttle
781 * to a sync callback so that we always give a chance for the compositor to
782 * handle the commit and send a release event before checking for a free
783 * buffer */
784 if (dri2_surf->throttle_callback == NULL) {
785 dri2_surf->throttle_callback = wl_display_sync(dri2_surf->wl_dpy_wrapper);
786 wl_callback_add_listener(dri2_surf->throttle_callback,
787 &throttle_listener, dri2_surf);
788 }
789
790 wl_display_flush(dri2_dpy->wl_dpy);
791
792 return EGL_TRUE;
793 }
794
795 static EGLint
796 dri2_wl_query_buffer_age(_EGLDriver *drv,
797 _EGLDisplay *disp, _EGLSurface *surface)
798 {
799 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surface);
800
801 if (get_back_bo(dri2_surf) < 0) {
802 _eglError(EGL_BAD_ALLOC, "dri2_query_buffer_age");
803 return -1;
804 }
805
806 return dri2_surf->back->age;
807 }
808
809 static EGLBoolean
810 dri2_wl_swap_buffers(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *draw)
811 {
812 return dri2_wl_swap_buffers_with_damage (drv, disp, draw, NULL, 0);
813 }
814
815 static struct wl_buffer *
816 dri2_wl_create_wayland_buffer_from_image(_EGLDriver *drv,
817 _EGLDisplay *disp,
818 _EGLImage *img)
819 {
820 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
821 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
822 __DRIimage *image = dri2_img->dri_image;
823 struct wl_buffer *buffer;
824 int width, height, format, pitch;
825 enum wl_drm_format wl_format;
826
827 dri2_dpy->image->queryImage(image, __DRI_IMAGE_ATTRIB_FORMAT, &format);
828
829 switch (format) {
830 case __DRI_IMAGE_FORMAT_ARGB8888:
831 if (!(dri2_dpy->formats & HAS_ARGB8888))
832 goto bad_format;
833 wl_format = WL_DRM_FORMAT_ARGB8888;
834 break;
835 case __DRI_IMAGE_FORMAT_XRGB8888:
836 if (!(dri2_dpy->formats & HAS_XRGB8888))
837 goto bad_format;
838 wl_format = WL_DRM_FORMAT_XRGB8888;
839 break;
840 default:
841 goto bad_format;
842 }
843
844 dri2_dpy->image->queryImage(image, __DRI_IMAGE_ATTRIB_WIDTH, &width);
845 dri2_dpy->image->queryImage(image, __DRI_IMAGE_ATTRIB_HEIGHT, &height);
846 dri2_dpy->image->queryImage(image, __DRI_IMAGE_ATTRIB_STRIDE, &pitch);
847
848 if (dri2_dpy->capabilities & WL_DRM_CAPABILITY_PRIME) {
849 int fd;
850
851 dri2_dpy->image->queryImage(image, __DRI_IMAGE_ATTRIB_FD, &fd);
852
853 buffer =
854 wl_drm_create_prime_buffer(dri2_dpy->wl_drm,
855 fd,
856 width, height,
857 wl_format,
858 0, pitch,
859 0, 0,
860 0, 0);
861
862 close(fd);
863 } else {
864 int name;
865
866 dri2_dpy->image->queryImage(image, __DRI_IMAGE_ATTRIB_NAME, &name);
867
868 buffer =
869 wl_drm_create_buffer(dri2_dpy->wl_drm,
870 name,
871 width, height,
872 pitch,
873 wl_format);
874 }
875
876 /* The buffer object will have been created with our internal event queue
877 * because it is using the wl_drm object as a proxy factory. We want the
878 * buffer to be used by the application so we'll reset it to the display's
879 * default event queue */
880 if (buffer)
881 wl_proxy_set_queue((struct wl_proxy *) buffer, NULL);
882
883 return buffer;
884
885 bad_format:
886 _eglError(EGL_BAD_MATCH, "unsupported image format");
887 return NULL;
888 }
889
890 static int
891 dri2_wl_authenticate(_EGLDisplay *disp, uint32_t id)
892 {
893 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
894 int ret = 0;
895
896 if (dri2_dpy->is_render_node) {
897 _eglLog(_EGL_WARNING, "wayland-egl: client asks server to "
898 "authenticate for render-nodes");
899 return 0;
900 }
901 dri2_dpy->authenticated = false;
902
903 wl_drm_authenticate(dri2_dpy->wl_drm, id);
904 if (roundtrip(dri2_dpy) < 0)
905 ret = -1;
906
907 if (!dri2_dpy->authenticated)
908 ret = -1;
909
910 /* reset authenticated */
911 dri2_dpy->authenticated = true;
912
913 return ret;
914 }
915
916 static void
917 drm_handle_device(void *data, struct wl_drm *drm, const char *device)
918 {
919 struct dri2_egl_display *dri2_dpy = data;
920 drm_magic_t magic;
921
922 dri2_dpy->device_name = strdup(device);
923 if (!dri2_dpy->device_name)
924 return;
925
926 dri2_dpy->fd = loader_open_device(dri2_dpy->device_name);
927 if (dri2_dpy->fd == -1) {
928 _eglLog(_EGL_WARNING, "wayland-egl: could not open %s (%s)",
929 dri2_dpy->device_name, strerror(errno));
930 return;
931 }
932
933 if (drmGetNodeTypeFromFd(dri2_dpy->fd) == DRM_NODE_RENDER) {
934 dri2_dpy->authenticated = true;
935 } else {
936 drmGetMagic(dri2_dpy->fd, &magic);
937 wl_drm_authenticate(dri2_dpy->wl_drm, magic);
938 }
939 }
940
941 static void
942 drm_handle_format(void *data, struct wl_drm *drm, uint32_t format)
943 {
944 struct dri2_egl_display *dri2_dpy = data;
945
946 switch (format) {
947 case WL_DRM_FORMAT_ARGB8888:
948 dri2_dpy->formats |= HAS_ARGB8888;
949 break;
950 case WL_DRM_FORMAT_XRGB8888:
951 dri2_dpy->formats |= HAS_XRGB8888;
952 break;
953 case WL_DRM_FORMAT_RGB565:
954 dri2_dpy->formats |= HAS_RGB565;
955 break;
956 }
957 }
958
959 static void
960 drm_handle_capabilities(void *data, struct wl_drm *drm, uint32_t value)
961 {
962 struct dri2_egl_display *dri2_dpy = data;
963
964 dri2_dpy->capabilities = value;
965 }
966
967 static void
968 drm_handle_authenticated(void *data, struct wl_drm *drm)
969 {
970 struct dri2_egl_display *dri2_dpy = data;
971
972 dri2_dpy->authenticated = true;
973 }
974
975 static const struct wl_drm_listener drm_listener = {
976 .device = drm_handle_device,
977 .format = drm_handle_format,
978 .authenticated = drm_handle_authenticated,
979 .capabilities = drm_handle_capabilities
980 };
981
982 static void
983 registry_handle_global_drm(void *data, struct wl_registry *registry,
984 uint32_t name, const char *interface,
985 uint32_t version)
986 {
987 struct dri2_egl_display *dri2_dpy = data;
988
989 if (strcmp(interface, "wl_drm") == 0) {
990 dri2_dpy->wl_drm =
991 wl_registry_bind(registry, name, &wl_drm_interface, MIN2(version, 2));
992 wl_drm_add_listener(dri2_dpy->wl_drm, &drm_listener, dri2_dpy);
993 }
994 }
995
996 static void
997 registry_handle_global_remove(void *data, struct wl_registry *registry,
998 uint32_t name)
999 {
1000 }
1001
1002 static const struct wl_registry_listener registry_listener_drm = {
1003 .global = registry_handle_global_drm,
1004 .global_remove = registry_handle_global_remove
1005 };
1006
1007 static EGLBoolean
1008 dri2_wl_swap_interval(_EGLDriver *drv,
1009 _EGLDisplay *disp,
1010 _EGLSurface *surf,
1011 EGLint interval)
1012 {
1013 if (interval > surf->Config->MaxSwapInterval)
1014 interval = surf->Config->MaxSwapInterval;
1015 else if (interval < surf->Config->MinSwapInterval)
1016 interval = surf->Config->MinSwapInterval;
1017
1018 surf->SwapInterval = interval;
1019
1020 return EGL_TRUE;
1021 }
1022
1023 static void
1024 dri2_wl_setup_swap_interval(struct dri2_egl_display *dri2_dpy)
1025 {
1026 GLint vblank_mode = DRI_CONF_VBLANK_DEF_INTERVAL_1;
1027
1028 /* We can't use values greater than 1 on Wayland because we are using the
1029 * frame callback to synchronise the frame and the only way we be sure to
1030 * get a frame callback is to attach a new buffer. Therefore we can't just
1031 * sit drawing nothing to wait until the next ‘n’ frame callbacks */
1032
1033 if (dri2_dpy->config)
1034 dri2_dpy->config->configQueryi(dri2_dpy->dri_screen,
1035 "vblank_mode", &vblank_mode);
1036 switch (vblank_mode) {
1037 case DRI_CONF_VBLANK_NEVER:
1038 dri2_dpy->min_swap_interval = 0;
1039 dri2_dpy->max_swap_interval = 0;
1040 dri2_dpy->default_swap_interval = 0;
1041 break;
1042 case DRI_CONF_VBLANK_ALWAYS_SYNC:
1043 dri2_dpy->min_swap_interval = 1;
1044 dri2_dpy->max_swap_interval = 1;
1045 dri2_dpy->default_swap_interval = 1;
1046 break;
1047 case DRI_CONF_VBLANK_DEF_INTERVAL_0:
1048 dri2_dpy->min_swap_interval = 0;
1049 dri2_dpy->max_swap_interval = 1;
1050 dri2_dpy->default_swap_interval = 0;
1051 break;
1052 default:
1053 case DRI_CONF_VBLANK_DEF_INTERVAL_1:
1054 dri2_dpy->min_swap_interval = 0;
1055 dri2_dpy->max_swap_interval = 1;
1056 dri2_dpy->default_swap_interval = 1;
1057 break;
1058 }
1059 }
1060
1061 static const struct dri2_egl_display_vtbl dri2_wl_display_vtbl = {
1062 .authenticate = dri2_wl_authenticate,
1063 .create_window_surface = dri2_wl_create_window_surface,
1064 .create_pixmap_surface = dri2_wl_create_pixmap_surface,
1065 .create_pbuffer_surface = dri2_fallback_create_pbuffer_surface,
1066 .destroy_surface = dri2_wl_destroy_surface,
1067 .create_image = dri2_create_image_khr,
1068 .swap_interval = dri2_wl_swap_interval,
1069 .swap_buffers = dri2_wl_swap_buffers,
1070 .swap_buffers_with_damage = dri2_wl_swap_buffers_with_damage,
1071 .swap_buffers_region = dri2_fallback_swap_buffers_region,
1072 .set_damage_region = dri2_fallback_set_damage_region,
1073 .post_sub_buffer = dri2_fallback_post_sub_buffer,
1074 .copy_buffers = dri2_fallback_copy_buffers,
1075 .query_buffer_age = dri2_wl_query_buffer_age,
1076 .create_wayland_buffer_from_image = dri2_wl_create_wayland_buffer_from_image,
1077 .get_sync_values = dri2_fallback_get_sync_values,
1078 .get_dri_drawable = dri2_surface_get_dri_drawable,
1079 };
1080
1081 static const __DRIextension *dri2_loader_extensions[] = {
1082 &dri2_loader_extension.base,
1083 &image_loader_extension.base,
1084 &image_lookup_extension.base,
1085 &use_invalidate.base,
1086 NULL,
1087 };
1088
1089 static const __DRIextension *image_loader_extensions[] = {
1090 &image_loader_extension.base,
1091 &image_lookup_extension.base,
1092 &use_invalidate.base,
1093 NULL,
1094 };
1095
1096 static EGLBoolean
1097 dri2_wl_add_configs_for_visuals(_EGLDriver *drv, _EGLDisplay *disp)
1098 {
1099 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1100 static const struct {
1101 const char *format_name;
1102 int has_format;
1103 unsigned int rgba_masks[4];
1104 } visuals[] = {
1105 { "XRGB8888", HAS_XRGB8888, { 0xff0000, 0xff00, 0x00ff, 0xff000000 } },
1106 { "ARGB8888", HAS_ARGB8888, { 0xff0000, 0xff00, 0x00ff, 0 } },
1107 { "RGB565", HAS_RGB565, { 0x00f800, 0x07e0, 0x001f, 0 } },
1108 };
1109 unsigned int format_count[ARRAY_SIZE(visuals)] = { 0 };
1110 unsigned int count = 0;
1111
1112 for (unsigned i = 0; dri2_dpy->driver_configs[i]; i++) {
1113 for (unsigned j = 0; j < ARRAY_SIZE(visuals); j++) {
1114 struct dri2_egl_config *dri2_conf;
1115
1116 if (!(dri2_dpy->formats & visuals[j].has_format))
1117 continue;
1118
1119 dri2_conf = dri2_add_config(disp, dri2_dpy->driver_configs[i],
1120 count + 1, EGL_WINDOW_BIT, NULL, visuals[j].rgba_masks);
1121 if (dri2_conf) {
1122 if (dri2_conf->base.ConfigID == count + 1)
1123 count++;
1124 format_count[j]++;
1125 }
1126 }
1127 }
1128
1129 for (unsigned i = 0; i < ARRAY_SIZE(format_count); i++) {
1130 if (!format_count[i]) {
1131 _eglLog(_EGL_DEBUG, "No DRI config supports native format %s",
1132 visuals[i].format_name);
1133 }
1134 }
1135
1136 return (count != 0);
1137 }
1138
1139 static EGLBoolean
1140 dri2_initialize_wayland_drm(_EGLDriver *drv, _EGLDisplay *disp)
1141 {
1142 struct dri2_egl_display *dri2_dpy;
1143
1144 loader_set_logger(_eglLog);
1145
1146 dri2_dpy = calloc(1, sizeof *dri2_dpy);
1147 if (!dri2_dpy)
1148 return _eglError(EGL_BAD_ALLOC, "eglInitialize");
1149
1150 dri2_dpy->fd = -1;
1151 disp->DriverData = (void *) dri2_dpy;
1152 if (disp->PlatformDisplay == NULL) {
1153 dri2_dpy->wl_dpy = wl_display_connect(NULL);
1154 if (dri2_dpy->wl_dpy == NULL)
1155 goto cleanup;
1156 dri2_dpy->own_device = true;
1157 } else {
1158 dri2_dpy->wl_dpy = disp->PlatformDisplay;
1159 }
1160
1161 dri2_dpy->wl_queue = wl_display_create_queue(dri2_dpy->wl_dpy);
1162
1163 dri2_dpy->wl_dpy_wrapper = wl_proxy_create_wrapper(dri2_dpy->wl_dpy);
1164 if (dri2_dpy->wl_dpy_wrapper == NULL)
1165 goto cleanup;
1166
1167 wl_proxy_set_queue((struct wl_proxy *) dri2_dpy->wl_dpy_wrapper,
1168 dri2_dpy->wl_queue);
1169
1170 if (dri2_dpy->own_device)
1171 wl_display_dispatch_pending(dri2_dpy->wl_dpy);
1172
1173 dri2_dpy->wl_registry = wl_display_get_registry(dri2_dpy->wl_dpy_wrapper);
1174 wl_registry_add_listener(dri2_dpy->wl_registry,
1175 &registry_listener_drm, dri2_dpy);
1176 if (roundtrip(dri2_dpy) < 0 || dri2_dpy->wl_drm == NULL)
1177 goto cleanup;
1178
1179 if (roundtrip(dri2_dpy) < 0 || dri2_dpy->fd == -1)
1180 goto cleanup;
1181
1182 if (roundtrip(dri2_dpy) < 0 || !dri2_dpy->authenticated)
1183 goto cleanup;
1184
1185 dri2_dpy->fd = loader_get_user_preferred_fd(dri2_dpy->fd,
1186 &dri2_dpy->is_different_gpu);
1187 if (dri2_dpy->is_different_gpu) {
1188 free(dri2_dpy->device_name);
1189 dri2_dpy->device_name = loader_get_device_name_for_fd(dri2_dpy->fd);
1190 if (!dri2_dpy->device_name) {
1191 _eglError(EGL_BAD_ALLOC, "wayland-egl: failed to get device name "
1192 "for requested GPU");
1193 goto cleanup;
1194 }
1195 }
1196
1197 /* we have to do the check now, because loader_get_user_preferred_fd
1198 * will return a render-node when the requested gpu is different
1199 * to the server, but also if the client asks for the same gpu than
1200 * the server by requesting its pci-id */
1201 dri2_dpy->is_render_node = drmGetNodeTypeFromFd(dri2_dpy->fd) == DRM_NODE_RENDER;
1202
1203 dri2_dpy->driver_name = loader_get_driver_for_fd(dri2_dpy->fd);
1204 if (dri2_dpy->driver_name == NULL) {
1205 _eglError(EGL_BAD_ALLOC, "DRI2: failed to get driver name");
1206 goto cleanup;
1207 }
1208
1209 /* render nodes cannot use Gem names, and thus do not support
1210 * the __DRI_DRI2_LOADER extension */
1211 if (!dri2_dpy->is_render_node) {
1212 dri2_dpy->loader_extensions = dri2_loader_extensions;
1213 if (!dri2_load_driver(disp)) {
1214 _eglError(EGL_BAD_ALLOC, "DRI2: failed to load driver");
1215 goto cleanup;
1216 }
1217 } else {
1218 dri2_dpy->loader_extensions = image_loader_extensions;
1219 if (!dri2_load_driver_dri3(disp)) {
1220 _eglError(EGL_BAD_ALLOC, "DRI3: failed to load driver");
1221 goto cleanup;
1222 }
1223 }
1224
1225 if (!dri2_create_screen(disp))
1226 goto cleanup;
1227
1228 if (!dri2_setup_extensions(disp))
1229 goto cleanup;
1230
1231 dri2_setup_screen(disp);
1232
1233 dri2_wl_setup_swap_interval(dri2_dpy);
1234
1235 /* To use Prime, we must have _DRI_IMAGE v7 at least.
1236 * createImageFromFds support indicates that Prime export/import
1237 * is supported by the driver. Fall back to
1238 * gem names if we don't have Prime support. */
1239
1240 if (dri2_dpy->image->base.version < 7 ||
1241 dri2_dpy->image->createImageFromFds == NULL)
1242 dri2_dpy->capabilities &= ~WL_DRM_CAPABILITY_PRIME;
1243
1244 /* We cannot use Gem names with render-nodes, only prime fds (dma-buf).
1245 * The server needs to accept them */
1246 if (dri2_dpy->is_render_node &&
1247 !(dri2_dpy->capabilities & WL_DRM_CAPABILITY_PRIME)) {
1248 _eglLog(_EGL_WARNING, "wayland-egl: display is not render-node capable");
1249 goto cleanup;
1250 }
1251
1252 if (dri2_dpy->is_different_gpu &&
1253 (dri2_dpy->image->base.version < 9 ||
1254 dri2_dpy->image->blitImage == NULL)) {
1255 _eglLog(_EGL_WARNING, "wayland-egl: Different GPU selected, but the "
1256 "Image extension in the driver is not "
1257 "compatible. Version 9 or later and blitImage() "
1258 "are required");
1259 goto cleanup;
1260 }
1261
1262 if (!dri2_wl_add_configs_for_visuals(drv, disp)) {
1263 _eglError(EGL_NOT_INITIALIZED, "DRI2: failed to add configs");
1264 goto cleanup;
1265 }
1266
1267 dri2_set_WL_bind_wayland_display(drv, disp);
1268 /* When cannot convert EGLImage to wl_buffer when on a different gpu,
1269 * because the buffer of the EGLImage has likely a tiling mode the server
1270 * gpu won't support. These is no way to check for now. Thus do not support the
1271 * extension */
1272 if (!dri2_dpy->is_different_gpu)
1273 disp->Extensions.WL_create_wayland_buffer_from_image = EGL_TRUE;
1274
1275 disp->Extensions.EXT_buffer_age = EGL_TRUE;
1276
1277 disp->Extensions.EXT_swap_buffers_with_damage = EGL_TRUE;
1278
1279 /* Fill vtbl last to prevent accidentally calling virtual function during
1280 * initialization.
1281 */
1282 dri2_dpy->vtbl = &dri2_wl_display_vtbl;
1283
1284 return EGL_TRUE;
1285
1286 cleanup:
1287 dri2_display_destroy(disp);
1288 return EGL_FALSE;
1289 }
1290
1291 static int
1292 dri2_wl_swrast_get_stride_for_format(int format, int w)
1293 {
1294 if (format == WL_SHM_FORMAT_RGB565)
1295 return 2 * w;
1296 else /* ARGB8888 || XRGB8888 */
1297 return 4 * w;
1298 }
1299
1300 /*
1301 * Taken from weston shared/os-compatibility.c
1302 */
1303
1304 #ifndef HAVE_MKOSTEMP
1305
1306 static int
1307 set_cloexec_or_close(int fd)
1308 {
1309 long flags;
1310
1311 if (fd == -1)
1312 return -1;
1313
1314 flags = fcntl(fd, F_GETFD);
1315 if (flags == -1)
1316 goto err;
1317
1318 if (fcntl(fd, F_SETFD, flags | FD_CLOEXEC) == -1)
1319 goto err;
1320
1321 return fd;
1322
1323 err:
1324 close(fd);
1325 return -1;
1326 }
1327
1328 #endif
1329
1330 /*
1331 * Taken from weston shared/os-compatibility.c
1332 */
1333
1334 static int
1335 create_tmpfile_cloexec(char *tmpname)
1336 {
1337 int fd;
1338
1339 #ifdef HAVE_MKOSTEMP
1340 fd = mkostemp(tmpname, O_CLOEXEC);
1341 if (fd >= 0)
1342 unlink(tmpname);
1343 #else
1344 fd = mkstemp(tmpname);
1345 if (fd >= 0) {
1346 fd = set_cloexec_or_close(fd);
1347 unlink(tmpname);
1348 }
1349 #endif
1350
1351 return fd;
1352 }
1353
1354 /*
1355 * Taken from weston shared/os-compatibility.c
1356 *
1357 * Create a new, unique, anonymous file of the given size, and
1358 * return the file descriptor for it. The file descriptor is set
1359 * CLOEXEC. The file is immediately suitable for mmap()'ing
1360 * the given size at offset zero.
1361 *
1362 * The file should not have a permanent backing store like a disk,
1363 * but may have if XDG_RUNTIME_DIR is not properly implemented in OS.
1364 *
1365 * The file name is deleted from the file system.
1366 *
1367 * The file is suitable for buffer sharing between processes by
1368 * transmitting the file descriptor over Unix sockets using the
1369 * SCM_RIGHTS methods.
1370 *
1371 * If the C library implements posix_fallocate(), it is used to
1372 * guarantee that disk space is available for the file at the
1373 * given size. If disk space is insufficent, errno is set to ENOSPC.
1374 * If posix_fallocate() is not supported, program may receive
1375 * SIGBUS on accessing mmap()'ed file contents instead.
1376 */
1377 static int
1378 os_create_anonymous_file(off_t size)
1379 {
1380 static const char template[] = "/mesa-shared-XXXXXX";
1381 const char *path;
1382 char *name;
1383 int fd;
1384 int ret;
1385
1386 path = getenv("XDG_RUNTIME_DIR");
1387 if (!path) {
1388 errno = ENOENT;
1389 return -1;
1390 }
1391
1392 name = malloc(strlen(path) + sizeof(template));
1393 if (!name)
1394 return -1;
1395
1396 strcpy(name, path);
1397 strcat(name, template);
1398
1399 fd = create_tmpfile_cloexec(name);
1400
1401 free(name);
1402
1403 if (fd < 0)
1404 return -1;
1405
1406 ret = ftruncate(fd, size);
1407 if (ret < 0) {
1408 close(fd);
1409 return -1;
1410 }
1411
1412 return fd;
1413 }
1414
1415
1416 static EGLBoolean
1417 dri2_wl_swrast_allocate_buffer(struct dri2_egl_surface *dri2_surf,
1418 int format, int w, int h,
1419 void **data, int *size,
1420 struct wl_buffer **buffer)
1421 {
1422 struct dri2_egl_display *dri2_dpy =
1423 dri2_egl_display(dri2_surf->base.Resource.Display);
1424 struct wl_shm_pool *pool;
1425 int fd, stride, size_map;
1426 void *data_map;
1427
1428 stride = dri2_wl_swrast_get_stride_for_format(format, w);
1429 size_map = h * stride;
1430
1431 /* Create a sharable buffer */
1432 fd = os_create_anonymous_file(size_map);
1433 if (fd < 0)
1434 return EGL_FALSE;
1435
1436 data_map = mmap(NULL, size_map, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
1437 if (data_map == MAP_FAILED) {
1438 close(fd);
1439 return EGL_FALSE;
1440 }
1441
1442 /* Share it in a wl_buffer */
1443 pool = wl_shm_create_pool(dri2_dpy->wl_shm, fd, size_map);
1444 wl_proxy_set_queue((struct wl_proxy *)pool, dri2_surf->wl_queue);
1445 *buffer = wl_shm_pool_create_buffer(pool, 0, w, h, stride, format);
1446 wl_shm_pool_destroy(pool);
1447 close(fd);
1448
1449 *data = data_map;
1450 *size = size_map;
1451 return EGL_TRUE;
1452 }
1453
1454 static int
1455 swrast_update_buffers(struct dri2_egl_surface *dri2_surf)
1456 {
1457 struct dri2_egl_display *dri2_dpy =
1458 dri2_egl_display(dri2_surf->base.Resource.Display);
1459
1460 /* we need to do the following operations only once per frame */
1461 if (dri2_surf->back)
1462 return 0;
1463
1464 if (dri2_surf->base.Width != dri2_surf->wl_win->width ||
1465 dri2_surf->base.Height != dri2_surf->wl_win->height) {
1466
1467 dri2_wl_release_buffers(dri2_surf);
1468
1469 dri2_surf->base.Width = dri2_surf->wl_win->width;
1470 dri2_surf->base.Height = dri2_surf->wl_win->height;
1471 dri2_surf->dx = dri2_surf->wl_win->dx;
1472 dri2_surf->dy = dri2_surf->wl_win->dy;
1473 dri2_surf->current = NULL;
1474 }
1475
1476 /* find back buffer */
1477
1478 /* There might be a buffer release already queued that wasn't processed */
1479 wl_display_dispatch_queue_pending(dri2_dpy->wl_dpy, dri2_surf->wl_queue);
1480
1481 /* try get free buffer already created */
1482 for (int i = 0; i < ARRAY_SIZE(dri2_surf->color_buffers); i++) {
1483 if (!dri2_surf->color_buffers[i].locked &&
1484 dri2_surf->color_buffers[i].wl_buffer) {
1485 dri2_surf->back = &dri2_surf->color_buffers[i];
1486 break;
1487 }
1488 }
1489
1490 /* else choose any another free location */
1491 if (!dri2_surf->back) {
1492 for (int i = 0; i < ARRAY_SIZE(dri2_surf->color_buffers); i++) {
1493 if (!dri2_surf->color_buffers[i].locked) {
1494 dri2_surf->back = &dri2_surf->color_buffers[i];
1495 if (!dri2_wl_swrast_allocate_buffer(dri2_surf,
1496 dri2_surf->format,
1497 dri2_surf->base.Width,
1498 dri2_surf->base.Height,
1499 &dri2_surf->back->data,
1500 &dri2_surf->back->data_size,
1501 &dri2_surf->back->wl_buffer)) {
1502 _eglError(EGL_BAD_ALLOC, "failed to allocate color buffer");
1503 return -1;
1504 }
1505 wl_buffer_add_listener(dri2_surf->back->wl_buffer,
1506 &wl_buffer_listener, dri2_surf);
1507 break;
1508 }
1509 }
1510 }
1511
1512 if (!dri2_surf->back) {
1513 _eglError(EGL_BAD_ALLOC, "failed to find free buffer");
1514 return -1;
1515 }
1516
1517 dri2_surf->back->locked = true;
1518
1519 /* If we have an extra unlocked buffer at this point, we had to do triple
1520 * buffering for a while, but now can go back to just double buffering.
1521 * That means we can free any unlocked buffer now. */
1522 for (int i = 0; i < ARRAY_SIZE(dri2_surf->color_buffers); i++) {
1523 if (!dri2_surf->color_buffers[i].locked &&
1524 dri2_surf->color_buffers[i].wl_buffer) {
1525 wl_buffer_destroy(dri2_surf->color_buffers[i].wl_buffer);
1526 munmap(dri2_surf->color_buffers[i].data,
1527 dri2_surf->color_buffers[i].data_size);
1528 dri2_surf->color_buffers[i].wl_buffer = NULL;
1529 dri2_surf->color_buffers[i].data = NULL;
1530 }
1531 }
1532
1533 return 0;
1534 }
1535
1536 static void*
1537 dri2_wl_swrast_get_frontbuffer_data(struct dri2_egl_surface *dri2_surf)
1538 {
1539 /* if there has been a resize: */
1540 if (!dri2_surf->current)
1541 return NULL;
1542
1543 return dri2_surf->current->data;
1544 }
1545
1546 static void*
1547 dri2_wl_swrast_get_backbuffer_data(struct dri2_egl_surface *dri2_surf)
1548 {
1549 assert(dri2_surf->back);
1550 return dri2_surf->back->data;
1551 }
1552
1553 static void
1554 dri2_wl_swrast_commit_backbuffer(struct dri2_egl_surface *dri2_surf)
1555 {
1556 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dri2_surf->base.Resource.Display);
1557
1558 while (dri2_surf->throttle_callback != NULL)
1559 if (wl_display_dispatch_queue(dri2_dpy->wl_dpy,
1560 dri2_surf->wl_queue) == -1)
1561 return;
1562
1563 if (dri2_surf->base.SwapInterval > 0) {
1564 dri2_surf->throttle_callback =
1565 wl_surface_frame(dri2_surf->wl_surface_wrapper);
1566 wl_callback_add_listener(dri2_surf->throttle_callback,
1567 &throttle_listener, dri2_surf);
1568 }
1569
1570 dri2_surf->current = dri2_surf->back;
1571 dri2_surf->back = NULL;
1572
1573 wl_surface_attach(dri2_surf->wl_surface_wrapper,
1574 dri2_surf->current->wl_buffer,
1575 dri2_surf->dx, dri2_surf->dy);
1576
1577 dri2_surf->wl_win->attached_width = dri2_surf->base.Width;
1578 dri2_surf->wl_win->attached_height = dri2_surf->base.Height;
1579 /* reset resize growing parameters */
1580 dri2_surf->dx = 0;
1581 dri2_surf->dy = 0;
1582
1583 wl_surface_damage(dri2_surf->wl_surface_wrapper,
1584 0, 0, INT32_MAX, INT32_MAX);
1585 wl_surface_commit(dri2_surf->wl_surface_wrapper);
1586
1587 /* If we're not waiting for a frame callback then we'll at least throttle
1588 * to a sync callback so that we always give a chance for the compositor to
1589 * handle the commit and send a release event before checking for a free
1590 * buffer */
1591 if (dri2_surf->throttle_callback == NULL) {
1592 dri2_surf->throttle_callback = wl_display_sync(dri2_dpy->wl_dpy_wrapper);
1593 wl_callback_add_listener(dri2_surf->throttle_callback,
1594 &throttle_listener, dri2_surf);
1595 }
1596
1597 wl_display_flush(dri2_dpy->wl_dpy);
1598 }
1599
1600 static void
1601 dri2_wl_swrast_get_drawable_info(__DRIdrawable * draw,
1602 int *x, int *y, int *w, int *h,
1603 void *loaderPrivate)
1604 {
1605 struct dri2_egl_surface *dri2_surf = loaderPrivate;
1606
1607 (void) swrast_update_buffers(dri2_surf);
1608 *x = 0;
1609 *y = 0;
1610 *w = dri2_surf->base.Width;
1611 *h = dri2_surf->base.Height;
1612 }
1613
1614 static void
1615 dri2_wl_swrast_get_image(__DRIdrawable * read,
1616 int x, int y, int w, int h,
1617 char *data, void *loaderPrivate)
1618 {
1619 struct dri2_egl_surface *dri2_surf = loaderPrivate;
1620 int copy_width = dri2_wl_swrast_get_stride_for_format(dri2_surf->format, w);
1621 int x_offset = dri2_wl_swrast_get_stride_for_format(dri2_surf->format, x);
1622 int src_stride = dri2_wl_swrast_get_stride_for_format(dri2_surf->format, dri2_surf->base.Width);
1623 int dst_stride = copy_width;
1624 char *src, *dst;
1625
1626 src = dri2_wl_swrast_get_frontbuffer_data(dri2_surf);
1627 if (!src) {
1628 memset(data, 0, copy_width * h);
1629 return;
1630 }
1631
1632 assert(data != src);
1633 assert(copy_width <= src_stride);
1634
1635 src += x_offset;
1636 src += y * src_stride;
1637 dst = data;
1638
1639 if (copy_width > src_stride-x_offset)
1640 copy_width = src_stride-x_offset;
1641 if (h > dri2_surf->base.Height-y)
1642 h = dri2_surf->base.Height-y;
1643
1644 for (; h>0; h--) {
1645 memcpy(dst, src, copy_width);
1646 src += src_stride;
1647 dst += dst_stride;
1648 }
1649 }
1650
1651 static void
1652 dri2_wl_swrast_put_image2(__DRIdrawable * draw, int op,
1653 int x, int y, int w, int h, int stride,
1654 char *data, void *loaderPrivate)
1655 {
1656 struct dri2_egl_surface *dri2_surf = loaderPrivate;
1657 int copy_width = dri2_wl_swrast_get_stride_for_format(dri2_surf->format, w);
1658 int dst_stride = dri2_wl_swrast_get_stride_for_format(dri2_surf->format, dri2_surf->base.Width);
1659 int x_offset = dri2_wl_swrast_get_stride_for_format(dri2_surf->format, x);
1660 char *src, *dst;
1661
1662 assert(copy_width <= stride);
1663
1664 (void) swrast_update_buffers(dri2_surf);
1665 dst = dri2_wl_swrast_get_backbuffer_data(dri2_surf);
1666
1667 /* partial copy, copy old content */
1668 if (copy_width < dst_stride)
1669 dri2_wl_swrast_get_image(draw, 0, 0,
1670 dri2_surf->base.Width, dri2_surf->base.Height,
1671 dst, loaderPrivate);
1672
1673 dst += x_offset;
1674 dst += y * dst_stride;
1675
1676 src = data;
1677
1678 /* drivers expect we do these checks (and some rely on it) */
1679 if (copy_width > dst_stride-x_offset)
1680 copy_width = dst_stride-x_offset;
1681 if (h > dri2_surf->base.Height-y)
1682 h = dri2_surf->base.Height-y;
1683
1684 for (; h>0; h--) {
1685 memcpy(dst, src, copy_width);
1686 src += stride;
1687 dst += dst_stride;
1688 }
1689 dri2_wl_swrast_commit_backbuffer(dri2_surf);
1690 }
1691
1692 static void
1693 dri2_wl_swrast_put_image(__DRIdrawable * draw, int op,
1694 int x, int y, int w, int h,
1695 char *data, void *loaderPrivate)
1696 {
1697 struct dri2_egl_surface *dri2_surf = loaderPrivate;
1698 int stride;
1699
1700 stride = dri2_wl_swrast_get_stride_for_format(dri2_surf->format, w);
1701 dri2_wl_swrast_put_image2(draw, op, x, y, w, h,
1702 stride, data, loaderPrivate);
1703 }
1704
1705 static EGLBoolean
1706 dri2_wl_swrast_swap_buffers(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *draw)
1707 {
1708 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1709 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(draw);
1710
1711 dri2_dpy->core->swapBuffers(dri2_surf->dri_drawable);
1712 return EGL_TRUE;
1713 }
1714
1715 static void
1716 shm_handle_format(void *data, struct wl_shm *shm, uint32_t format)
1717 {
1718 struct dri2_egl_display *dri2_dpy = data;
1719
1720 switch (format) {
1721 case WL_SHM_FORMAT_ARGB8888:
1722 dri2_dpy->formats |= HAS_ARGB8888;
1723 break;
1724 case WL_SHM_FORMAT_XRGB8888:
1725 dri2_dpy->formats |= HAS_XRGB8888;
1726 break;
1727 case WL_SHM_FORMAT_RGB565:
1728 dri2_dpy->formats |= HAS_RGB565;
1729 break;
1730 }
1731 }
1732
1733 static const struct wl_shm_listener shm_listener = {
1734 .format = shm_handle_format
1735 };
1736
1737 static void
1738 registry_handle_global_swrast(void *data, struct wl_registry *registry,
1739 uint32_t name, const char *interface,
1740 uint32_t version)
1741 {
1742 struct dri2_egl_display *dri2_dpy = data;
1743
1744 if (strcmp(interface, "wl_shm") == 0) {
1745 dri2_dpy->wl_shm =
1746 wl_registry_bind(registry, name, &wl_shm_interface, 1);
1747 wl_shm_add_listener(dri2_dpy->wl_shm, &shm_listener, dri2_dpy);
1748 }
1749 }
1750
1751 static const struct wl_registry_listener registry_listener_swrast = {
1752 .global = registry_handle_global_swrast,
1753 .global_remove = registry_handle_global_remove
1754 };
1755
1756 static const struct dri2_egl_display_vtbl dri2_wl_swrast_display_vtbl = {
1757 .authenticate = NULL,
1758 .create_window_surface = dri2_wl_create_window_surface,
1759 .create_pixmap_surface = dri2_wl_create_pixmap_surface,
1760 .create_pbuffer_surface = dri2_fallback_create_pbuffer_surface,
1761 .destroy_surface = dri2_wl_destroy_surface,
1762 .create_image = dri2_fallback_create_image_khr,
1763 .swap_interval = dri2_wl_swap_interval,
1764 .swap_buffers = dri2_wl_swrast_swap_buffers,
1765 .swap_buffers_with_damage = dri2_fallback_swap_buffers_with_damage,
1766 .swap_buffers_region = dri2_fallback_swap_buffers_region,
1767 .post_sub_buffer = dri2_fallback_post_sub_buffer,
1768 .copy_buffers = dri2_fallback_copy_buffers,
1769 .query_buffer_age = dri2_fallback_query_buffer_age,
1770 .create_wayland_buffer_from_image = dri2_fallback_create_wayland_buffer_from_image,
1771 .get_sync_values = dri2_fallback_get_sync_values,
1772 .get_dri_drawable = dri2_surface_get_dri_drawable,
1773 };
1774
1775 static const __DRIswrastLoaderExtension swrast_loader_extension = {
1776 .base = { __DRI_SWRAST_LOADER, 2 },
1777
1778 .getDrawableInfo = dri2_wl_swrast_get_drawable_info,
1779 .putImage = dri2_wl_swrast_put_image,
1780 .getImage = dri2_wl_swrast_get_image,
1781 .putImage2 = dri2_wl_swrast_put_image2,
1782 };
1783
1784 static const __DRIextension *swrast_loader_extensions[] = {
1785 &swrast_loader_extension.base,
1786 NULL,
1787 };
1788
1789 static EGLBoolean
1790 dri2_initialize_wayland_swrast(_EGLDriver *drv, _EGLDisplay *disp)
1791 {
1792 struct dri2_egl_display *dri2_dpy;
1793
1794 loader_set_logger(_eglLog);
1795
1796 dri2_dpy = calloc(1, sizeof *dri2_dpy);
1797 if (!dri2_dpy)
1798 return _eglError(EGL_BAD_ALLOC, "eglInitialize");
1799
1800 dri2_dpy->fd = -1;
1801 disp->DriverData = (void *) dri2_dpy;
1802 if (disp->PlatformDisplay == NULL) {
1803 dri2_dpy->wl_dpy = wl_display_connect(NULL);
1804 if (dri2_dpy->wl_dpy == NULL)
1805 goto cleanup;
1806 dri2_dpy->own_device = true;
1807 } else {
1808 dri2_dpy->wl_dpy = disp->PlatformDisplay;
1809 }
1810
1811 dri2_dpy->wl_queue = wl_display_create_queue(dri2_dpy->wl_dpy);
1812
1813 dri2_dpy->wl_dpy_wrapper = wl_proxy_create_wrapper(dri2_dpy->wl_dpy);
1814 if (dri2_dpy->wl_dpy_wrapper == NULL)
1815 goto cleanup;
1816
1817 wl_proxy_set_queue((struct wl_proxy *) dri2_dpy->wl_dpy_wrapper,
1818 dri2_dpy->wl_queue);
1819
1820 if (dri2_dpy->own_device)
1821 wl_display_dispatch_pending(dri2_dpy->wl_dpy);
1822
1823 dri2_dpy->wl_registry = wl_display_get_registry(dri2_dpy->wl_dpy_wrapper);
1824 wl_registry_add_listener(dri2_dpy->wl_registry,
1825 &registry_listener_swrast, dri2_dpy);
1826
1827 if (roundtrip(dri2_dpy) < 0 || dri2_dpy->wl_shm == NULL)
1828 goto cleanup;
1829
1830 if (roundtrip(dri2_dpy) < 0 || dri2_dpy->formats == 0)
1831 goto cleanup;
1832
1833 dri2_dpy->driver_name = strdup("swrast");
1834 if (!dri2_load_driver_swrast(disp))
1835 goto cleanup;
1836
1837 dri2_dpy->loader_extensions = swrast_loader_extensions;
1838
1839 if (!dri2_create_screen(disp))
1840 goto cleanup;
1841
1842 if (!dri2_setup_extensions(disp))
1843 goto cleanup;
1844
1845 dri2_setup_screen(disp);
1846
1847 dri2_wl_setup_swap_interval(dri2_dpy);
1848
1849 if (!dri2_wl_add_configs_for_visuals(drv, disp)) {
1850 _eglError(EGL_NOT_INITIALIZED, "DRI2: failed to add configs");
1851 goto cleanup;
1852 }
1853
1854 /* Fill vtbl last to prevent accidentally calling virtual function during
1855 * initialization.
1856 */
1857 dri2_dpy->vtbl = &dri2_wl_swrast_display_vtbl;
1858
1859 return EGL_TRUE;
1860
1861 cleanup:
1862 dri2_display_destroy(disp);
1863 return EGL_FALSE;
1864 }
1865
1866 EGLBoolean
1867 dri2_initialize_wayland(_EGLDriver *drv, _EGLDisplay *disp)
1868 {
1869 EGLBoolean initialized = EGL_TRUE;
1870
1871 int hw_accel = (getenv("LIBGL_ALWAYS_SOFTWARE") == NULL);
1872
1873 if (hw_accel) {
1874 if (!dri2_initialize_wayland_drm(drv, disp)) {
1875 initialized = dri2_initialize_wayland_swrast(drv, disp);
1876 }
1877 } else {
1878 initialized = dri2_initialize_wayland_swrast(drv, disp);
1879 }
1880
1881 return initialized;
1882
1883 }