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egl: add dri2_setup_swap_interval helper
[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 <drm_fourcc.h>
40 #include <sys/mman.h>
41
42 #include "egl_dri2.h"
43 #include "egl_dri2_fallbacks.h"
44 #include "loader.h"
45 #include "util/u_vector.h"
46 #include "eglglobals.h"
47
48 #include <wayland-client.h>
49 #include "wayland-drm-client-protocol.h"
50 #include "linux-dmabuf-unstable-v1-client-protocol.h"
51
52 #ifndef DRM_FORMAT_MOD_INVALID
53 #define DRM_FORMAT_MOD_INVALID ((1ULL << 56) - 1)
54 #endif
55
56 #ifndef DRM_FORMAT_MOD_LINEAR
57 #define DRM_FORMAT_MOD_LINEAR 0
58 #endif
59
60 enum wl_drm_format_flags {
61 HAS_ARGB8888 = 1,
62 HAS_XRGB8888 = 2,
63 HAS_RGB565 = 4,
64 };
65
66 static int
67 roundtrip(struct dri2_egl_display *dri2_dpy)
68 {
69 return wl_display_roundtrip_queue(dri2_dpy->wl_dpy, dri2_dpy->wl_queue);
70 }
71
72 static void
73 wl_buffer_release(void *data, struct wl_buffer *buffer)
74 {
75 struct dri2_egl_surface *dri2_surf = data;
76 int i;
77
78 for (i = 0; i < ARRAY_SIZE(dri2_surf->color_buffers); ++i)
79 if (dri2_surf->color_buffers[i].wl_buffer == buffer)
80 break;
81
82 if (i == ARRAY_SIZE(dri2_surf->color_buffers)) {
83 wl_buffer_destroy(buffer);
84 return;
85 }
86
87 dri2_surf->color_buffers[i].locked = false;
88 }
89
90 static const struct wl_buffer_listener wl_buffer_listener = {
91 .release = wl_buffer_release
92 };
93
94 static void
95 resize_callback(struct wl_egl_window *wl_win, void *data)
96 {
97 struct dri2_egl_surface *dri2_surf = data;
98 struct dri2_egl_display *dri2_dpy =
99 dri2_egl_display(dri2_surf->base.Resource.Display);
100
101 dri2_dpy->flush->invalidate(dri2_surf->dri_drawable);
102 }
103
104 static void
105 destroy_window_callback(void *data)
106 {
107 struct dri2_egl_surface *dri2_surf = data;
108 dri2_surf->wl_win = NULL;
109 }
110
111 static struct wl_surface *
112 get_wl_surface_proxy(struct wl_egl_window *window)
113 {
114 /* Version 3 of wl_egl_window introduced a version field at the same
115 * location where a pointer to wl_surface was stored. Thus, if
116 * window->version is dereferencable, we've been given an older version of
117 * wl_egl_window, and window->version points to wl_surface */
118 if (_eglPointerIsDereferencable((void *)(window->version))) {
119 return wl_proxy_create_wrapper((void *)(window->version));
120 }
121 return wl_proxy_create_wrapper(window->surface);
122 }
123
124 /**
125 * Called via eglCreateWindowSurface(), drv->API.CreateWindowSurface().
126 */
127 static _EGLSurface *
128 dri2_wl_create_window_surface(_EGLDriver *drv, _EGLDisplay *disp,
129 _EGLConfig *conf, void *native_window,
130 const EGLint *attrib_list)
131 {
132 __DRIcreateNewDrawableFunc createNewDrawable;
133 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
134 struct dri2_egl_config *dri2_conf = dri2_egl_config(conf);
135 struct wl_egl_window *window = native_window;
136 struct dri2_egl_surface *dri2_surf;
137 const __DRIconfig *config;
138
139 dri2_surf = calloc(1, sizeof *dri2_surf);
140 if (!dri2_surf) {
141 _eglError(EGL_BAD_ALLOC, "dri2_create_surface");
142 return NULL;
143 }
144
145 if (!_eglInitSurface(&dri2_surf->base, disp, EGL_WINDOW_BIT, conf, attrib_list))
146 goto cleanup_surf;
147
148 if (dri2_dpy->wl_drm) {
149 if (conf->RedSize == 5)
150 dri2_surf->format = WL_DRM_FORMAT_RGB565;
151 else if (conf->AlphaSize == 0)
152 dri2_surf->format = WL_DRM_FORMAT_XRGB8888;
153 else
154 dri2_surf->format = WL_DRM_FORMAT_ARGB8888;
155 } else {
156 assert(dri2_dpy->wl_shm);
157 if (conf->RedSize == 5)
158 dri2_surf->format = WL_SHM_FORMAT_RGB565;
159 else if (conf->AlphaSize == 0)
160 dri2_surf->format = WL_SHM_FORMAT_XRGB8888;
161 else
162 dri2_surf->format = WL_SHM_FORMAT_ARGB8888;
163 }
164
165 if (!window) {
166 _eglError(EGL_BAD_NATIVE_WINDOW, "dri2_create_surface");
167 goto cleanup_surf;
168 }
169
170 dri2_surf->wl_win = window;
171 dri2_surf->wl_queue = wl_display_create_queue(dri2_dpy->wl_dpy);
172 if (!dri2_surf->wl_queue) {
173 _eglError(EGL_BAD_ALLOC, "dri2_create_surface");
174 goto cleanup_surf;
175 }
176
177 if (dri2_dpy->wl_drm) {
178 dri2_surf->wl_drm_wrapper = wl_proxy_create_wrapper(dri2_dpy->wl_drm);
179 if (!dri2_surf->wl_drm_wrapper) {
180 _eglError(EGL_BAD_ALLOC, "dri2_create_surface");
181 goto cleanup_queue;
182 }
183 wl_proxy_set_queue((struct wl_proxy *)dri2_surf->wl_drm_wrapper,
184 dri2_surf->wl_queue);
185 }
186
187 dri2_surf->wl_dpy_wrapper = wl_proxy_create_wrapper(dri2_dpy->wl_dpy);
188 if (!dri2_surf->wl_dpy_wrapper) {
189 _eglError(EGL_BAD_ALLOC, "dri2_create_surface");
190 goto cleanup_drm;
191 }
192 wl_proxy_set_queue((struct wl_proxy *)dri2_surf->wl_dpy_wrapper,
193 dri2_surf->wl_queue);
194
195 dri2_surf->wl_surface_wrapper = get_wl_surface_proxy(window);
196 if (!dri2_surf->wl_surface_wrapper) {
197 _eglError(EGL_BAD_ALLOC, "dri2_create_surface");
198 goto cleanup_drm;
199 }
200 wl_proxy_set_queue((struct wl_proxy *)dri2_surf->wl_surface_wrapper,
201 dri2_surf->wl_queue);
202
203 dri2_surf->wl_win->private = dri2_surf;
204 dri2_surf->wl_win->destroy_window_callback = destroy_window_callback;
205
206 dri2_surf->base.Width = -1;
207 dri2_surf->base.Height = -1;
208
209 config = dri2_get_dri_config(dri2_conf, EGL_WINDOW_BIT,
210 dri2_surf->base.GLColorspace);
211
212 if (dri2_dpy->flush)
213 dri2_surf->wl_win->resize_callback = resize_callback;
214
215 if (dri2_dpy->image_driver)
216 createNewDrawable = dri2_dpy->image_driver->createNewDrawable;
217 else if (dri2_dpy->dri2)
218 createNewDrawable = dri2_dpy->dri2->createNewDrawable;
219 else
220 createNewDrawable = dri2_dpy->swrast->createNewDrawable;
221
222 dri2_surf->dri_drawable = (*createNewDrawable)(dri2_dpy->dri_screen, config,
223 dri2_surf);
224 if (dri2_surf->dri_drawable == NULL) {
225 _eglError(EGL_BAD_ALLOC, "createNewDrawable");
226 goto cleanup_surf;
227 }
228
229 dri2_surf->base.SwapInterval = dri2_dpy->default_swap_interval;
230
231 return &dri2_surf->base;
232
233 cleanup_drm:
234 if (dri2_surf->wl_drm_wrapper)
235 wl_proxy_wrapper_destroy(dri2_surf->wl_drm_wrapper);
236 cleanup_queue:
237 wl_event_queue_destroy(dri2_surf->wl_queue);
238 cleanup_surf:
239 free(dri2_surf);
240
241 return NULL;
242 }
243
244 static _EGLSurface *
245 dri2_wl_create_pixmap_surface(_EGLDriver *drv, _EGLDisplay *disp,
246 _EGLConfig *conf, void *native_window,
247 const EGLint *attrib_list)
248 {
249 /* From the EGL_EXT_platform_wayland spec, version 3:
250 *
251 * It is not valid to call eglCreatePlatformPixmapSurfaceEXT with a <dpy>
252 * that belongs to Wayland. Any such call fails and generates
253 * EGL_BAD_PARAMETER.
254 */
255 _eglError(EGL_BAD_PARAMETER, "cannot create EGL pixmap surfaces on "
256 "Wayland");
257 return NULL;
258 }
259
260 /**
261 * Called via eglDestroySurface(), drv->API.DestroySurface().
262 */
263 static EGLBoolean
264 dri2_wl_destroy_surface(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf)
265 {
266 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
267 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
268
269 (void) drv;
270
271 dri2_dpy->core->destroyDrawable(dri2_surf->dri_drawable);
272
273 for (int i = 0; i < ARRAY_SIZE(dri2_surf->color_buffers); i++) {
274 if (dri2_surf->color_buffers[i].wl_buffer)
275 wl_buffer_destroy(dri2_surf->color_buffers[i].wl_buffer);
276 if (dri2_surf->color_buffers[i].dri_image)
277 dri2_dpy->image->destroyImage(dri2_surf->color_buffers[i].dri_image);
278 if (dri2_surf->color_buffers[i].linear_copy)
279 dri2_dpy->image->destroyImage(dri2_surf->color_buffers[i].linear_copy);
280 if (dri2_surf->color_buffers[i].data)
281 munmap(dri2_surf->color_buffers[i].data,
282 dri2_surf->color_buffers[i].data_size);
283 }
284
285 if (dri2_dpy->dri2) {
286 for (int i = 0; i < __DRI_BUFFER_COUNT; i++)
287 if (dri2_surf->dri_buffers[i] &&
288 dri2_surf->dri_buffers[i]->attachment != __DRI_BUFFER_BACK_LEFT)
289 dri2_dpy->dri2->releaseBuffer(dri2_dpy->dri_screen,
290 dri2_surf->dri_buffers[i]);
291 }
292
293 if (dri2_surf->throttle_callback)
294 wl_callback_destroy(dri2_surf->throttle_callback);
295
296 if (dri2_surf->wl_win) {
297 dri2_surf->wl_win->private = NULL;
298 dri2_surf->wl_win->resize_callback = NULL;
299 dri2_surf->wl_win->destroy_window_callback = NULL;
300 }
301
302 if (dri2_surf->wl_drm_wrapper)
303 wl_proxy_wrapper_destroy(dri2_surf->wl_drm_wrapper);
304 wl_proxy_wrapper_destroy(dri2_surf->wl_surface_wrapper);
305 wl_proxy_wrapper_destroy(dri2_surf->wl_dpy_wrapper);
306 wl_event_queue_destroy(dri2_surf->wl_queue);
307
308 free(surf);
309
310 return EGL_TRUE;
311 }
312
313 static void
314 dri2_wl_release_buffers(struct dri2_egl_surface *dri2_surf)
315 {
316 struct dri2_egl_display *dri2_dpy =
317 dri2_egl_display(dri2_surf->base.Resource.Display);
318
319 for (int i = 0; i < ARRAY_SIZE(dri2_surf->color_buffers); i++) {
320 if (dri2_surf->color_buffers[i].wl_buffer &&
321 !dri2_surf->color_buffers[i].locked)
322 wl_buffer_destroy(dri2_surf->color_buffers[i].wl_buffer);
323 if (dri2_surf->color_buffers[i].dri_image)
324 dri2_dpy->image->destroyImage(dri2_surf->color_buffers[i].dri_image);
325 if (dri2_surf->color_buffers[i].linear_copy)
326 dri2_dpy->image->destroyImage(dri2_surf->color_buffers[i].linear_copy);
327 if (dri2_surf->color_buffers[i].data)
328 munmap(dri2_surf->color_buffers[i].data,
329 dri2_surf->color_buffers[i].data_size);
330
331 dri2_surf->color_buffers[i].wl_buffer = NULL;
332 dri2_surf->color_buffers[i].dri_image = NULL;
333 dri2_surf->color_buffers[i].linear_copy = NULL;
334 dri2_surf->color_buffers[i].data = NULL;
335 dri2_surf->color_buffers[i].locked = false;
336 }
337
338 if (dri2_dpy->dri2) {
339 for (int i = 0; i < __DRI_BUFFER_COUNT; i++)
340 if (dri2_surf->dri_buffers[i] &&
341 dri2_surf->dri_buffers[i]->attachment != __DRI_BUFFER_BACK_LEFT)
342 dri2_dpy->dri2->releaseBuffer(dri2_dpy->dri_screen,
343 dri2_surf->dri_buffers[i]);
344 }
345 }
346
347 static int
348 get_back_bo(struct dri2_egl_surface *dri2_surf)
349 {
350 struct dri2_egl_display *dri2_dpy =
351 dri2_egl_display(dri2_surf->base.Resource.Display);
352 int use_flags;
353 unsigned int dri_image_format;
354 uint64_t *modifiers;
355 int num_modifiers;
356
357 /* currently supports three WL DRM formats,
358 * WL_DRM_FORMAT_ARGB8888, WL_DRM_FORMAT_XRGB8888,
359 * and WL_DRM_FORMAT_RGB565
360 */
361 switch (dri2_surf->format) {
362 case WL_DRM_FORMAT_ARGB8888:
363 dri_image_format = __DRI_IMAGE_FORMAT_ARGB8888;
364 modifiers = u_vector_tail(&dri2_dpy->wl_modifiers.argb8888);
365 num_modifiers = u_vector_length(&dri2_dpy->wl_modifiers.argb8888);
366 break;
367 case WL_DRM_FORMAT_XRGB8888:
368 dri_image_format = __DRI_IMAGE_FORMAT_XRGB8888;
369 modifiers = u_vector_tail(&dri2_dpy->wl_modifiers.xrgb8888);
370 num_modifiers = u_vector_length(&dri2_dpy->wl_modifiers.xrgb8888);
371 break;
372 case WL_DRM_FORMAT_RGB565:
373 dri_image_format = __DRI_IMAGE_FORMAT_RGB565;
374 modifiers = u_vector_tail(&dri2_dpy->wl_modifiers.rgb565);
375 num_modifiers = u_vector_length(&dri2_dpy->wl_modifiers.rgb565);
376 break;
377 default:
378 /* format is not supported */
379 return -1;
380 }
381
382 /* There might be a buffer release already queued that wasn't processed */
383 wl_display_dispatch_queue_pending(dri2_dpy->wl_dpy, dri2_surf->wl_queue);
384
385 while (dri2_surf->back == NULL) {
386 for (int i = 0; i < ARRAY_SIZE(dri2_surf->color_buffers); i++) {
387 /* Get an unlocked buffer, preferrably one with a dri_buffer
388 * already allocated. */
389 if (dri2_surf->color_buffers[i].locked)
390 continue;
391 if (dri2_surf->back == NULL)
392 dri2_surf->back = &dri2_surf->color_buffers[i];
393 else if (dri2_surf->back->dri_image == NULL)
394 dri2_surf->back = &dri2_surf->color_buffers[i];
395 }
396
397 if (dri2_surf->back)
398 break;
399
400 /* If we don't have a buffer, then block on the server to release one for
401 * us, and try again. */
402 if (wl_display_dispatch_queue(dri2_dpy->wl_dpy, dri2_surf->wl_queue) < 0)
403 return -1;
404 }
405
406 if (dri2_surf->back == NULL)
407 return -1;
408
409 use_flags = __DRI_IMAGE_USE_SHARE | __DRI_IMAGE_USE_BACKBUFFER;
410
411 if (dri2_dpy->is_different_gpu &&
412 dri2_surf->back->linear_copy == NULL) {
413 /* The LINEAR modifier should be a perfect alias of the LINEAR use
414 * flag; try the new interface first before the old, then fall back. */
415 if (dri2_dpy->image->base.version >= 15 &&
416 dri2_dpy->image->createImageWithModifiers) {
417 uint64_t linear_mod = DRM_FORMAT_MOD_LINEAR;
418
419 dri2_surf->back->linear_copy =
420 dri2_dpy->image->createImageWithModifiers(dri2_dpy->dri_screen,
421 dri2_surf->base.Width,
422 dri2_surf->base.Height,
423 dri_image_format,
424 &linear_mod,
425 1,
426 NULL);
427 } else {
428 dri2_surf->back->linear_copy =
429 dri2_dpy->image->createImage(dri2_dpy->dri_screen,
430 dri2_surf->base.Width,
431 dri2_surf->base.Height,
432 dri_image_format,
433 use_flags |
434 __DRI_IMAGE_USE_LINEAR,
435 NULL);
436 }
437 if (dri2_surf->back->linear_copy == NULL)
438 return -1;
439 }
440
441 if (dri2_surf->back->dri_image == NULL) {
442 /* If our DRIImage implementation does not support
443 * createImageWithModifiers, then fall back to the old createImage,
444 * and hope it allocates an image which is acceptable to the winsys.
445 */
446 if (num_modifiers && dri2_dpy->image->base.version >= 15 &&
447 dri2_dpy->image->createImageWithModifiers) {
448 dri2_surf->back->dri_image =
449 dri2_dpy->image->createImageWithModifiers(dri2_dpy->dri_screen,
450 dri2_surf->base.Width,
451 dri2_surf->base.Height,
452 dri_image_format,
453 modifiers,
454 num_modifiers,
455 NULL);
456 } else {
457 dri2_surf->back->dri_image =
458 dri2_dpy->image->createImage(dri2_dpy->dri_screen,
459 dri2_surf->base.Width,
460 dri2_surf->base.Height,
461 dri_image_format,
462 dri2_dpy->is_different_gpu ?
463 0 : use_flags,
464 NULL);
465 }
466
467 dri2_surf->back->age = 0;
468 }
469 if (dri2_surf->back->dri_image == NULL)
470 return -1;
471
472 dri2_surf->back->locked = true;
473
474 return 0;
475 }
476
477
478 static void
479 back_bo_to_dri_buffer(struct dri2_egl_surface *dri2_surf, __DRIbuffer *buffer)
480 {
481 struct dri2_egl_display *dri2_dpy =
482 dri2_egl_display(dri2_surf->base.Resource.Display);
483 __DRIimage *image;
484 int name, pitch;
485
486 image = dri2_surf->back->dri_image;
487
488 dri2_dpy->image->queryImage(image, __DRI_IMAGE_ATTRIB_NAME, &name);
489 dri2_dpy->image->queryImage(image, __DRI_IMAGE_ATTRIB_STRIDE, &pitch);
490
491 buffer->attachment = __DRI_BUFFER_BACK_LEFT;
492 buffer->name = name;
493 buffer->pitch = pitch;
494 buffer->cpp = 4;
495 buffer->flags = 0;
496 }
497
498 static int
499 get_aux_bo(struct dri2_egl_surface *dri2_surf,
500 unsigned int attachment, unsigned int format, __DRIbuffer *buffer)
501 {
502 struct dri2_egl_display *dri2_dpy =
503 dri2_egl_display(dri2_surf->base.Resource.Display);
504 __DRIbuffer *b = dri2_surf->dri_buffers[attachment];
505
506 if (b == NULL) {
507 b = dri2_dpy->dri2->allocateBuffer(dri2_dpy->dri_screen,
508 attachment, format,
509 dri2_surf->base.Width,
510 dri2_surf->base.Height);
511 dri2_surf->dri_buffers[attachment] = b;
512 }
513 if (b == NULL)
514 return -1;
515
516 memcpy(buffer, b, sizeof *buffer);
517
518 return 0;
519 }
520
521 static int
522 update_buffers(struct dri2_egl_surface *dri2_surf)
523 {
524 struct dri2_egl_display *dri2_dpy =
525 dri2_egl_display(dri2_surf->base.Resource.Display);
526
527 if (dri2_surf->base.Width != dri2_surf->wl_win->width ||
528 dri2_surf->base.Height != dri2_surf->wl_win->height) {
529
530 dri2_wl_release_buffers(dri2_surf);
531
532 dri2_surf->base.Width = dri2_surf->wl_win->width;
533 dri2_surf->base.Height = dri2_surf->wl_win->height;
534 dri2_surf->dx = dri2_surf->wl_win->dx;
535 dri2_surf->dy = dri2_surf->wl_win->dy;
536 }
537
538 if (get_back_bo(dri2_surf) < 0) {
539 _eglError(EGL_BAD_ALLOC, "failed to allocate color buffer");
540 return -1;
541 }
542
543 /* If we have an extra unlocked buffer at this point, we had to do triple
544 * buffering for a while, but now can go back to just double buffering.
545 * That means we can free any unlocked buffer now. */
546 for (int i = 0; i < ARRAY_SIZE(dri2_surf->color_buffers); i++) {
547 if (!dri2_surf->color_buffers[i].locked &&
548 dri2_surf->color_buffers[i].wl_buffer) {
549 wl_buffer_destroy(dri2_surf->color_buffers[i].wl_buffer);
550 dri2_dpy->image->destroyImage(dri2_surf->color_buffers[i].dri_image);
551 if (dri2_dpy->is_different_gpu)
552 dri2_dpy->image->destroyImage(dri2_surf->color_buffers[i].linear_copy);
553 dri2_surf->color_buffers[i].wl_buffer = NULL;
554 dri2_surf->color_buffers[i].dri_image = NULL;
555 dri2_surf->color_buffers[i].linear_copy = NULL;
556 }
557 }
558
559 return 0;
560 }
561
562 static __DRIbuffer *
563 dri2_wl_get_buffers_with_format(__DRIdrawable * driDrawable,
564 int *width, int *height,
565 unsigned int *attachments, int count,
566 int *out_count, void *loaderPrivate)
567 {
568 struct dri2_egl_surface *dri2_surf = loaderPrivate;
569 int i, j;
570
571 if (update_buffers(dri2_surf) < 0)
572 return NULL;
573
574 for (i = 0, j = 0; i < 2 * count; i += 2, j++) {
575 switch (attachments[i]) {
576 case __DRI_BUFFER_BACK_LEFT:
577 back_bo_to_dri_buffer(dri2_surf, &dri2_surf->buffers[j]);
578 break;
579 default:
580 if (get_aux_bo(dri2_surf, attachments[i], attachments[i + 1],
581 &dri2_surf->buffers[j]) < 0) {
582 _eglError(EGL_BAD_ALLOC, "failed to allocate aux buffer");
583 return NULL;
584 }
585 break;
586 }
587 }
588
589 *out_count = j;
590 if (j == 0)
591 return NULL;
592
593 *width = dri2_surf->base.Width;
594 *height = dri2_surf->base.Height;
595
596 return dri2_surf->buffers;
597 }
598
599 static __DRIbuffer *
600 dri2_wl_get_buffers(__DRIdrawable * driDrawable,
601 int *width, int *height,
602 unsigned int *attachments, int count,
603 int *out_count, void *loaderPrivate)
604 {
605 struct dri2_egl_surface *dri2_surf = loaderPrivate;
606 unsigned int *attachments_with_format;
607 __DRIbuffer *buffer;
608 unsigned int bpp;
609
610 switch (dri2_surf->format) {
611 case WL_DRM_FORMAT_ARGB8888:
612 case WL_DRM_FORMAT_XRGB8888:
613 bpp = 32;
614 break;
615 case WL_DRM_FORMAT_RGB565:
616 bpp = 16;
617 break;
618 default:
619 /* format is not supported */
620 return NULL;
621 }
622
623 attachments_with_format = calloc(count, 2 * sizeof(unsigned int));
624 if (!attachments_with_format) {
625 *out_count = 0;
626 return NULL;
627 }
628
629 for (int i = 0; i < count; ++i) {
630 attachments_with_format[2*i] = attachments[i];
631 attachments_with_format[2*i + 1] = bpp;
632 }
633
634 buffer =
635 dri2_wl_get_buffers_with_format(driDrawable,
636 width, height,
637 attachments_with_format, count,
638 out_count, loaderPrivate);
639
640 free(attachments_with_format);
641
642 return buffer;
643 }
644
645 static int
646 image_get_buffers(__DRIdrawable *driDrawable,
647 unsigned int format,
648 uint32_t *stamp,
649 void *loaderPrivate,
650 uint32_t buffer_mask,
651 struct __DRIimageList *buffers)
652 {
653 struct dri2_egl_surface *dri2_surf = loaderPrivate;
654
655 if (update_buffers(dri2_surf) < 0)
656 return 0;
657
658 buffers->image_mask = __DRI_IMAGE_BUFFER_BACK;
659 buffers->back = dri2_surf->back->dri_image;
660
661 return 1;
662 }
663
664 static void
665 dri2_wl_flush_front_buffer(__DRIdrawable * driDrawable, void *loaderPrivate)
666 {
667 (void) driDrawable;
668 (void) loaderPrivate;
669 }
670
671 static const __DRIdri2LoaderExtension dri2_loader_extension = {
672 .base = { __DRI_DRI2_LOADER, 3 },
673
674 .getBuffers = dri2_wl_get_buffers,
675 .flushFrontBuffer = dri2_wl_flush_front_buffer,
676 .getBuffersWithFormat = dri2_wl_get_buffers_with_format,
677 };
678
679 static const __DRIimageLoaderExtension image_loader_extension = {
680 .base = { __DRI_IMAGE_LOADER, 1 },
681
682 .getBuffers = image_get_buffers,
683 .flushFrontBuffer = dri2_wl_flush_front_buffer,
684 };
685
686 static void
687 wayland_throttle_callback(void *data,
688 struct wl_callback *callback,
689 uint32_t time)
690 {
691 struct dri2_egl_surface *dri2_surf = data;
692
693 dri2_surf->throttle_callback = NULL;
694 wl_callback_destroy(callback);
695 }
696
697 static const struct wl_callback_listener throttle_listener = {
698 .done = wayland_throttle_callback
699 };
700
701 static struct wl_buffer *
702 create_wl_buffer(struct dri2_egl_display *dri2_dpy,
703 struct dri2_egl_surface *dri2_surf,
704 __DRIimage *image)
705 {
706 struct wl_buffer *ret;
707 int width, height, fourcc, num_planes;
708
709 dri2_dpy->image->queryImage(image, __DRI_IMAGE_ATTRIB_WIDTH, &width);
710 dri2_dpy->image->queryImage(image, __DRI_IMAGE_ATTRIB_HEIGHT, &height);
711 dri2_dpy->image->queryImage(image, __DRI_IMAGE_ATTRIB_FOURCC, &fourcc);
712 dri2_dpy->image->queryImage(image, __DRI_IMAGE_ATTRIB_NUM_PLANES,
713 &num_planes);
714
715 if (dri2_dpy->wl_dmabuf && dri2_dpy->image->base.version >= 15) {
716 struct zwp_linux_buffer_params_v1 *params;
717 int mod_hi, mod_lo;
718 int i;
719
720 dri2_dpy->image->queryImage(image, __DRI_IMAGE_ATTRIB_MODIFIER_UPPER,
721 &mod_hi);
722 dri2_dpy->image->queryImage(image, __DRI_IMAGE_ATTRIB_MODIFIER_LOWER,
723 &mod_lo);
724
725 /* We don't need a wrapper for wl_dmabuf objects, because we have to
726 * create the intermediate params object; we can set the queue on this,
727 * and the wl_buffer inherits it race-free. */
728 params = zwp_linux_dmabuf_v1_create_params(dri2_dpy->wl_dmabuf);
729 if (dri2_surf)
730 wl_proxy_set_queue((struct wl_proxy *) params, dri2_surf->wl_queue);
731
732 for (i = 0; i < num_planes; i++) {
733 __DRIimage *p_image;
734 int stride, offset, fd;
735
736 if (i == 0)
737 p_image = image;
738 else
739 p_image = dri2_dpy->image->fromPlanar(image, i, NULL);
740 if (!p_image) {
741 zwp_linux_buffer_params_v1_destroy(params);
742 return NULL;
743 }
744
745 dri2_dpy->image->queryImage(p_image, __DRI_IMAGE_ATTRIB_FD, &fd);
746 dri2_dpy->image->queryImage(p_image, __DRI_IMAGE_ATTRIB_STRIDE,
747 &stride);
748 dri2_dpy->image->queryImage(p_image, __DRI_IMAGE_ATTRIB_OFFSET,
749 &offset);
750 if (image != p_image)
751 dri2_dpy->image->destroyImage(p_image);
752
753 zwp_linux_buffer_params_v1_add(params, fd, i, offset, stride,
754 mod_hi, mod_lo);
755 close(fd);
756 }
757
758 ret = zwp_linux_buffer_params_v1_create_immed(params, width, height,
759 fourcc, 0);
760 zwp_linux_buffer_params_v1_destroy(params);
761 } else if (dri2_dpy->capabilities & WL_DRM_CAPABILITY_PRIME) {
762 struct wl_drm *wl_drm =
763 dri2_surf ? dri2_surf->wl_drm_wrapper : dri2_dpy->wl_drm;
764 int fd, stride;
765
766 if (num_planes > 1)
767 return NULL;
768
769 dri2_dpy->image->queryImage(image, __DRI_IMAGE_ATTRIB_FD, &fd);
770 dri2_dpy->image->queryImage(image, __DRI_IMAGE_ATTRIB_STRIDE, &stride);
771 ret = wl_drm_create_prime_buffer(wl_drm, fd, width, height, fourcc, 0,
772 stride, 0, 0, 0, 0);
773 close(fd);
774 } else {
775 struct wl_drm *wl_drm =
776 dri2_surf ? dri2_surf->wl_drm_wrapper : dri2_dpy->wl_drm;
777 int name, stride;
778
779 if (num_planes > 1)
780 return NULL;
781
782 dri2_dpy->image->queryImage(image, __DRI_IMAGE_ATTRIB_NAME, &name);
783 dri2_dpy->image->queryImage(image, __DRI_IMAGE_ATTRIB_STRIDE, &stride);
784 ret = wl_drm_create_buffer(wl_drm, name, width, height, stride, fourcc);
785 }
786
787 return ret;
788 }
789
790 static EGLBoolean
791 try_damage_buffer(struct dri2_egl_surface *dri2_surf,
792 const EGLint *rects,
793 EGLint n_rects)
794 {
795 if (wl_proxy_get_version((struct wl_proxy *) dri2_surf->wl_surface_wrapper)
796 < WL_SURFACE_DAMAGE_BUFFER_SINCE_VERSION)
797 return EGL_FALSE;
798
799 for (int i = 0; i < n_rects; i++) {
800 const int *rect = &rects[i * 4];
801
802 wl_surface_damage_buffer(dri2_surf->wl_surface_wrapper,
803 rect[0],
804 dri2_surf->base.Height - rect[1] - rect[3],
805 rect[2], rect[3]);
806 }
807 return EGL_TRUE;
808 }
809 /**
810 * Called via eglSwapBuffers(), drv->API.SwapBuffers().
811 */
812 static EGLBoolean
813 dri2_wl_swap_buffers_with_damage(_EGLDriver *drv,
814 _EGLDisplay *disp,
815 _EGLSurface *draw,
816 const EGLint *rects,
817 EGLint n_rects)
818 {
819 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
820 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(draw);
821
822 while (dri2_surf->throttle_callback != NULL)
823 if (wl_display_dispatch_queue(dri2_dpy->wl_dpy,
824 dri2_surf->wl_queue) == -1)
825 return -1;
826
827 for (int i = 0; i < ARRAY_SIZE(dri2_surf->color_buffers); i++)
828 if (dri2_surf->color_buffers[i].age > 0)
829 dri2_surf->color_buffers[i].age++;
830
831 /* Make sure we have a back buffer in case we're swapping without ever
832 * rendering. */
833 if (get_back_bo(dri2_surf) < 0)
834 return _eglError(EGL_BAD_ALLOC, "dri2_swap_buffers");
835
836 if (draw->SwapInterval > 0) {
837 dri2_surf->throttle_callback =
838 wl_surface_frame(dri2_surf->wl_surface_wrapper);
839 wl_callback_add_listener(dri2_surf->throttle_callback,
840 &throttle_listener, dri2_surf);
841 }
842
843 dri2_surf->back->age = 1;
844 dri2_surf->current = dri2_surf->back;
845 dri2_surf->back = NULL;
846
847 if (!dri2_surf->current->wl_buffer) {
848 __DRIimage *image;
849
850 if (dri2_dpy->is_different_gpu)
851 image = dri2_surf->current->linear_copy;
852 else
853 image = dri2_surf->current->dri_image;
854
855 dri2_surf->current->wl_buffer =
856 create_wl_buffer(dri2_dpy, dri2_surf, image);
857
858 wl_buffer_add_listener(dri2_surf->current->wl_buffer,
859 &wl_buffer_listener, dri2_surf);
860 }
861
862 wl_surface_attach(dri2_surf->wl_surface_wrapper,
863 dri2_surf->current->wl_buffer,
864 dri2_surf->dx, dri2_surf->dy);
865
866 dri2_surf->wl_win->attached_width = dri2_surf->base.Width;
867 dri2_surf->wl_win->attached_height = dri2_surf->base.Height;
868 /* reset resize growing parameters */
869 dri2_surf->dx = 0;
870 dri2_surf->dy = 0;
871
872 /* If the compositor doesn't support damage_buffer, we deliberately
873 * ignore the damage region and post maximum damage, due to
874 * https://bugs.freedesktop.org/78190 */
875 if (!n_rects || !try_damage_buffer(dri2_surf, rects, n_rects))
876 wl_surface_damage(dri2_surf->wl_surface_wrapper,
877 0, 0, INT32_MAX, INT32_MAX);
878
879 if (dri2_dpy->is_different_gpu) {
880 _EGLContext *ctx = _eglGetCurrentContext();
881 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
882 dri2_dpy->image->blitImage(dri2_ctx->dri_context,
883 dri2_surf->current->linear_copy,
884 dri2_surf->current->dri_image,
885 0, 0, dri2_surf->base.Width,
886 dri2_surf->base.Height,
887 0, 0, dri2_surf->base.Width,
888 dri2_surf->base.Height, 0);
889 }
890
891 dri2_flush_drawable_for_swapbuffers(disp, draw);
892 dri2_dpy->flush->invalidate(dri2_surf->dri_drawable);
893
894 wl_surface_commit(dri2_surf->wl_surface_wrapper);
895
896 /* If we're not waiting for a frame callback then we'll at least throttle
897 * to a sync callback so that we always give a chance for the compositor to
898 * handle the commit and send a release event before checking for a free
899 * buffer */
900 if (dri2_surf->throttle_callback == NULL) {
901 dri2_surf->throttle_callback = wl_display_sync(dri2_surf->wl_dpy_wrapper);
902 wl_callback_add_listener(dri2_surf->throttle_callback,
903 &throttle_listener, dri2_surf);
904 }
905
906 wl_display_flush(dri2_dpy->wl_dpy);
907
908 return EGL_TRUE;
909 }
910
911 static EGLint
912 dri2_wl_query_buffer_age(_EGLDriver *drv,
913 _EGLDisplay *disp, _EGLSurface *surface)
914 {
915 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surface);
916
917 if (get_back_bo(dri2_surf) < 0) {
918 _eglError(EGL_BAD_ALLOC, "dri2_query_buffer_age");
919 return -1;
920 }
921
922 return dri2_surf->back->age;
923 }
924
925 static EGLBoolean
926 dri2_wl_swap_buffers(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *draw)
927 {
928 return dri2_wl_swap_buffers_with_damage(drv, disp, draw, NULL, 0);
929 }
930
931 static struct wl_buffer *
932 dri2_wl_create_wayland_buffer_from_image(_EGLDriver *drv,
933 _EGLDisplay *disp,
934 _EGLImage *img)
935 {
936 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
937 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
938 __DRIimage *image = dri2_img->dri_image;
939 struct wl_buffer *buffer;
940 int format;
941
942 dri2_dpy->image->queryImage(image, __DRI_IMAGE_ATTRIB_FORMAT, &format);
943 switch (format) {
944 case __DRI_IMAGE_FORMAT_ARGB8888:
945 if (!(dri2_dpy->formats & HAS_ARGB8888))
946 goto bad_format;
947 break;
948 case __DRI_IMAGE_FORMAT_XRGB8888:
949 if (!(dri2_dpy->formats & HAS_XRGB8888))
950 goto bad_format;
951 break;
952 default:
953 goto bad_format;
954 }
955
956 buffer = create_wl_buffer(dri2_dpy, NULL, image);
957
958 /* The buffer object will have been created with our internal event queue
959 * because it is using the wl_drm object as a proxy factory. We want the
960 * buffer to be used by the application so we'll reset it to the display's
961 * default event queue. This isn't actually racy, as the only event the
962 * buffer can get is a buffer release, which doesn't happen with an explicit
963 * attach. */
964 if (buffer)
965 wl_proxy_set_queue((struct wl_proxy *) buffer, NULL);
966
967 return buffer;
968
969 bad_format:
970 _eglError(EGL_BAD_MATCH, "unsupported image format");
971 return NULL;
972 }
973
974 static int
975 dri2_wl_authenticate(_EGLDisplay *disp, uint32_t id)
976 {
977 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
978 int ret = 0;
979
980 if (dri2_dpy->is_render_node) {
981 _eglLog(_EGL_WARNING, "wayland-egl: client asks server to "
982 "authenticate for render-nodes");
983 return 0;
984 }
985 dri2_dpy->authenticated = false;
986
987 wl_drm_authenticate(dri2_dpy->wl_drm, id);
988 if (roundtrip(dri2_dpy) < 0)
989 ret = -1;
990
991 if (!dri2_dpy->authenticated)
992 ret = -1;
993
994 /* reset authenticated */
995 dri2_dpy->authenticated = true;
996
997 return ret;
998 }
999
1000 static void
1001 drm_handle_device(void *data, struct wl_drm *drm, const char *device)
1002 {
1003 struct dri2_egl_display *dri2_dpy = data;
1004 drm_magic_t magic;
1005
1006 dri2_dpy->device_name = strdup(device);
1007 if (!dri2_dpy->device_name)
1008 return;
1009
1010 dri2_dpy->fd = loader_open_device(dri2_dpy->device_name);
1011 if (dri2_dpy->fd == -1) {
1012 _eglLog(_EGL_WARNING, "wayland-egl: could not open %s (%s)",
1013 dri2_dpy->device_name, strerror(errno));
1014 return;
1015 }
1016
1017 if (drmGetNodeTypeFromFd(dri2_dpy->fd) == DRM_NODE_RENDER) {
1018 dri2_dpy->authenticated = true;
1019 } else {
1020 drmGetMagic(dri2_dpy->fd, &magic);
1021 wl_drm_authenticate(dri2_dpy->wl_drm, magic);
1022 }
1023 }
1024
1025 static void
1026 drm_handle_format(void *data, struct wl_drm *drm, uint32_t format)
1027 {
1028 struct dri2_egl_display *dri2_dpy = data;
1029
1030 switch (format) {
1031 case WL_DRM_FORMAT_ARGB8888:
1032 dri2_dpy->formats |= HAS_ARGB8888;
1033 break;
1034 case WL_DRM_FORMAT_XRGB8888:
1035 dri2_dpy->formats |= HAS_XRGB8888;
1036 break;
1037 case WL_DRM_FORMAT_RGB565:
1038 dri2_dpy->formats |= HAS_RGB565;
1039 break;
1040 }
1041 }
1042
1043 static void
1044 drm_handle_capabilities(void *data, struct wl_drm *drm, uint32_t value)
1045 {
1046 struct dri2_egl_display *dri2_dpy = data;
1047
1048 dri2_dpy->capabilities = value;
1049 }
1050
1051 static void
1052 drm_handle_authenticated(void *data, struct wl_drm *drm)
1053 {
1054 struct dri2_egl_display *dri2_dpy = data;
1055
1056 dri2_dpy->authenticated = true;
1057 }
1058
1059 static const struct wl_drm_listener drm_listener = {
1060 .device = drm_handle_device,
1061 .format = drm_handle_format,
1062 .authenticated = drm_handle_authenticated,
1063 .capabilities = drm_handle_capabilities
1064 };
1065
1066 static void
1067 dmabuf_ignore_format(void *data, struct zwp_linux_dmabuf_v1 *dmabuf,
1068 uint32_t format)
1069 {
1070 /* formats are implicitly advertised by the 'modifier' event, so ignore */
1071 }
1072
1073 static void
1074 dmabuf_handle_modifier(void *data, struct zwp_linux_dmabuf_v1 *dmabuf,
1075 uint32_t format, uint32_t modifier_hi,
1076 uint32_t modifier_lo)
1077 {
1078 struct dri2_egl_display *dri2_dpy = data;
1079 uint64_t *mod = NULL;
1080
1081 if (modifier_hi == (DRM_FORMAT_MOD_INVALID >> 32) &&
1082 modifier_lo == (DRM_FORMAT_MOD_INVALID & 0xffffffff))
1083 return;
1084
1085 switch (format) {
1086 case WL_DRM_FORMAT_ARGB8888:
1087 mod = u_vector_add(&dri2_dpy->wl_modifiers.argb8888);
1088 break;
1089 case WL_DRM_FORMAT_XRGB8888:
1090 mod = u_vector_add(&dri2_dpy->wl_modifiers.xrgb8888);
1091 break;
1092 case WL_DRM_FORMAT_RGB565:
1093 mod = u_vector_add(&dri2_dpy->wl_modifiers.rgb565);
1094 break;
1095 default:
1096 break;
1097 }
1098
1099 if (!mod)
1100 return;
1101
1102 *mod = (uint64_t) modifier_hi << 32;
1103 *mod |= (uint64_t) (modifier_lo & 0xffffffff);
1104 }
1105
1106 static const struct zwp_linux_dmabuf_v1_listener dmabuf_listener = {
1107 .format = dmabuf_ignore_format,
1108 .modifier = dmabuf_handle_modifier,
1109 };
1110
1111 static void
1112 registry_handle_global_drm(void *data, struct wl_registry *registry,
1113 uint32_t name, const char *interface,
1114 uint32_t version)
1115 {
1116 struct dri2_egl_display *dri2_dpy = data;
1117
1118 if (strcmp(interface, "wl_drm") == 0) {
1119 dri2_dpy->wl_drm =
1120 wl_registry_bind(registry, name, &wl_drm_interface, MIN2(version, 2));
1121 wl_drm_add_listener(dri2_dpy->wl_drm, &drm_listener, dri2_dpy);
1122 } else if (strcmp(interface, "zwp_linux_dmabuf_v1") == 0 && version >= 3) {
1123 dri2_dpy->wl_dmabuf =
1124 wl_registry_bind(registry, name, &zwp_linux_dmabuf_v1_interface,
1125 MIN2(version, 3));
1126 zwp_linux_dmabuf_v1_add_listener(dri2_dpy->wl_dmabuf, &dmabuf_listener,
1127 dri2_dpy);
1128 }
1129 }
1130
1131 static void
1132 registry_handle_global_remove(void *data, struct wl_registry *registry,
1133 uint32_t name)
1134 {
1135 }
1136
1137 static const struct wl_registry_listener registry_listener_drm = {
1138 .global = registry_handle_global_drm,
1139 .global_remove = registry_handle_global_remove
1140 };
1141
1142 static void
1143 dri2_wl_setup_swap_interval(_EGLDisplay *disp)
1144 {
1145 /* We can't use values greater than 1 on Wayland because we are using the
1146 * frame callback to synchronise the frame and the only way we be sure to
1147 * get a frame callback is to attach a new buffer. Therefore we can't just
1148 * sit drawing nothing to wait until the next ‘n’ frame callbacks */
1149
1150 dri2_setup_swap_interval(disp, 1);
1151 }
1152
1153 static const struct dri2_egl_display_vtbl dri2_wl_display_vtbl = {
1154 .authenticate = dri2_wl_authenticate,
1155 .create_window_surface = dri2_wl_create_window_surface,
1156 .create_pixmap_surface = dri2_wl_create_pixmap_surface,
1157 .create_pbuffer_surface = dri2_fallback_create_pbuffer_surface,
1158 .destroy_surface = dri2_wl_destroy_surface,
1159 .create_image = dri2_create_image_khr,
1160 .swap_buffers = dri2_wl_swap_buffers,
1161 .swap_buffers_with_damage = dri2_wl_swap_buffers_with_damage,
1162 .swap_buffers_region = dri2_fallback_swap_buffers_region,
1163 .set_damage_region = dri2_fallback_set_damage_region,
1164 .post_sub_buffer = dri2_fallback_post_sub_buffer,
1165 .copy_buffers = dri2_fallback_copy_buffers,
1166 .query_buffer_age = dri2_wl_query_buffer_age,
1167 .create_wayland_buffer_from_image = dri2_wl_create_wayland_buffer_from_image,
1168 .get_sync_values = dri2_fallback_get_sync_values,
1169 .get_dri_drawable = dri2_surface_get_dri_drawable,
1170 };
1171
1172 static const __DRIextension *dri2_loader_extensions[] = {
1173 &dri2_loader_extension.base,
1174 &image_loader_extension.base,
1175 &image_lookup_extension.base,
1176 &use_invalidate.base,
1177 NULL,
1178 };
1179
1180 static const __DRIextension *image_loader_extensions[] = {
1181 &image_loader_extension.base,
1182 &image_lookup_extension.base,
1183 &use_invalidate.base,
1184 NULL,
1185 };
1186
1187 static EGLBoolean
1188 dri2_wl_add_configs_for_visuals(_EGLDriver *drv, _EGLDisplay *disp)
1189 {
1190 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1191 static const struct {
1192 const char *format_name;
1193 int has_format;
1194 unsigned int rgba_masks[4];
1195 } visuals[] = {
1196 { "XRGB8888", HAS_XRGB8888, { 0xff0000, 0xff00, 0x00ff, 0xff000000 } },
1197 { "ARGB8888", HAS_ARGB8888, { 0xff0000, 0xff00, 0x00ff, 0 } },
1198 { "RGB565", HAS_RGB565, { 0x00f800, 0x07e0, 0x001f, 0 } },
1199 };
1200 unsigned int format_count[ARRAY_SIZE(visuals)] = { 0 };
1201 unsigned int count = 0;
1202
1203 for (unsigned i = 0; dri2_dpy->driver_configs[i]; i++) {
1204 for (unsigned j = 0; j < ARRAY_SIZE(visuals); j++) {
1205 struct dri2_egl_config *dri2_conf;
1206
1207 if (!(dri2_dpy->formats & visuals[j].has_format))
1208 continue;
1209
1210 dri2_conf = dri2_add_config(disp, dri2_dpy->driver_configs[i],
1211 count + 1, EGL_WINDOW_BIT, NULL, visuals[j].rgba_masks);
1212 if (dri2_conf) {
1213 if (dri2_conf->base.ConfigID == count + 1)
1214 count++;
1215 format_count[j]++;
1216 }
1217 }
1218 }
1219
1220 for (unsigned i = 0; i < ARRAY_SIZE(format_count); i++) {
1221 if (!format_count[i]) {
1222 _eglLog(_EGL_DEBUG, "No DRI config supports native format %s",
1223 visuals[i].format_name);
1224 }
1225 }
1226
1227 return (count != 0);
1228 }
1229
1230 static EGLBoolean
1231 dri2_initialize_wayland_drm(_EGLDriver *drv, _EGLDisplay *disp)
1232 {
1233 struct dri2_egl_display *dri2_dpy;
1234
1235 loader_set_logger(_eglLog);
1236
1237 dri2_dpy = calloc(1, sizeof *dri2_dpy);
1238 if (!dri2_dpy)
1239 return _eglError(EGL_BAD_ALLOC, "eglInitialize");
1240
1241 dri2_dpy->fd = -1;
1242 disp->DriverData = (void *) dri2_dpy;
1243 if (disp->PlatformDisplay == NULL) {
1244 dri2_dpy->wl_dpy = wl_display_connect(NULL);
1245 if (dri2_dpy->wl_dpy == NULL)
1246 goto cleanup;
1247 dri2_dpy->own_device = true;
1248 } else {
1249 dri2_dpy->wl_dpy = disp->PlatformDisplay;
1250 }
1251
1252 if (!u_vector_init(&dri2_dpy->wl_modifiers.xrgb8888, sizeof(uint64_t), 32) ||
1253 !u_vector_init(&dri2_dpy->wl_modifiers.argb8888, sizeof(uint64_t), 32) ||
1254 !u_vector_init(&dri2_dpy->wl_modifiers.rgb565, sizeof(uint64_t), 32)) {
1255 goto cleanup;
1256 }
1257
1258 dri2_dpy->wl_queue = wl_display_create_queue(dri2_dpy->wl_dpy);
1259
1260 dri2_dpy->wl_dpy_wrapper = wl_proxy_create_wrapper(dri2_dpy->wl_dpy);
1261 if (dri2_dpy->wl_dpy_wrapper == NULL)
1262 goto cleanup;
1263
1264 wl_proxy_set_queue((struct wl_proxy *) dri2_dpy->wl_dpy_wrapper,
1265 dri2_dpy->wl_queue);
1266
1267 if (dri2_dpy->own_device)
1268 wl_display_dispatch_pending(dri2_dpy->wl_dpy);
1269
1270 dri2_dpy->wl_registry = wl_display_get_registry(dri2_dpy->wl_dpy_wrapper);
1271 wl_registry_add_listener(dri2_dpy->wl_registry,
1272 &registry_listener_drm, dri2_dpy);
1273 if (roundtrip(dri2_dpy) < 0 || dri2_dpy->wl_drm == NULL)
1274 goto cleanup;
1275
1276 if (roundtrip(dri2_dpy) < 0 || dri2_dpy->fd == -1)
1277 goto cleanup;
1278
1279 if (roundtrip(dri2_dpy) < 0 || !dri2_dpy->authenticated)
1280 goto cleanup;
1281
1282 dri2_dpy->fd = loader_get_user_preferred_fd(dri2_dpy->fd,
1283 &dri2_dpy->is_different_gpu);
1284 if (dri2_dpy->is_different_gpu) {
1285 free(dri2_dpy->device_name);
1286 dri2_dpy->device_name = loader_get_device_name_for_fd(dri2_dpy->fd);
1287 if (!dri2_dpy->device_name) {
1288 _eglError(EGL_BAD_ALLOC, "wayland-egl: failed to get device name "
1289 "for requested GPU");
1290 goto cleanup;
1291 }
1292 }
1293
1294 /* we have to do the check now, because loader_get_user_preferred_fd
1295 * will return a render-node when the requested gpu is different
1296 * to the server, but also if the client asks for the same gpu than
1297 * the server by requesting its pci-id */
1298 dri2_dpy->is_render_node = drmGetNodeTypeFromFd(dri2_dpy->fd) == DRM_NODE_RENDER;
1299
1300 dri2_dpy->driver_name = loader_get_driver_for_fd(dri2_dpy->fd);
1301 if (dri2_dpy->driver_name == NULL) {
1302 _eglError(EGL_BAD_ALLOC, "DRI2: failed to get driver name");
1303 goto cleanup;
1304 }
1305
1306 /* render nodes cannot use Gem names, and thus do not support
1307 * the __DRI_DRI2_LOADER extension */
1308 if (!dri2_dpy->is_render_node) {
1309 dri2_dpy->loader_extensions = dri2_loader_extensions;
1310 if (!dri2_load_driver(disp)) {
1311 _eglError(EGL_BAD_ALLOC, "DRI2: failed to load driver");
1312 goto cleanup;
1313 }
1314 } else {
1315 dri2_dpy->loader_extensions = image_loader_extensions;
1316 if (!dri2_load_driver_dri3(disp)) {
1317 _eglError(EGL_BAD_ALLOC, "DRI3: failed to load driver");
1318 goto cleanup;
1319 }
1320 }
1321
1322 if (!dri2_create_screen(disp))
1323 goto cleanup;
1324
1325 if (!dri2_setup_extensions(disp))
1326 goto cleanup;
1327
1328 dri2_setup_screen(disp);
1329
1330 dri2_wl_setup_swap_interval(disp);
1331
1332 /* To use Prime, we must have _DRI_IMAGE v7 at least.
1333 * createImageFromFds support indicates that Prime export/import
1334 * is supported by the driver. Fall back to
1335 * gem names if we don't have Prime support. */
1336
1337 if (dri2_dpy->image->base.version < 7 ||
1338 dri2_dpy->image->createImageFromFds == NULL)
1339 dri2_dpy->capabilities &= ~WL_DRM_CAPABILITY_PRIME;
1340
1341 /* We cannot use Gem names with render-nodes, only prime fds (dma-buf).
1342 * The server needs to accept them */
1343 if (dri2_dpy->is_render_node &&
1344 !(dri2_dpy->capabilities & WL_DRM_CAPABILITY_PRIME)) {
1345 _eglLog(_EGL_WARNING, "wayland-egl: display is not render-node capable");
1346 goto cleanup;
1347 }
1348
1349 if (dri2_dpy->is_different_gpu &&
1350 (dri2_dpy->image->base.version < 9 ||
1351 dri2_dpy->image->blitImage == NULL)) {
1352 _eglLog(_EGL_WARNING, "wayland-egl: Different GPU selected, but the "
1353 "Image extension in the driver is not "
1354 "compatible. Version 9 or later and blitImage() "
1355 "are required");
1356 goto cleanup;
1357 }
1358
1359 if (!dri2_wl_add_configs_for_visuals(drv, disp)) {
1360 _eglError(EGL_NOT_INITIALIZED, "DRI2: failed to add configs");
1361 goto cleanup;
1362 }
1363
1364 dri2_set_WL_bind_wayland_display(drv, disp);
1365 /* When cannot convert EGLImage to wl_buffer when on a different gpu,
1366 * because the buffer of the EGLImage has likely a tiling mode the server
1367 * gpu won't support. These is no way to check for now. Thus do not support the
1368 * extension */
1369 if (!dri2_dpy->is_different_gpu)
1370 disp->Extensions.WL_create_wayland_buffer_from_image = EGL_TRUE;
1371
1372 disp->Extensions.EXT_buffer_age = EGL_TRUE;
1373
1374 disp->Extensions.EXT_swap_buffers_with_damage = EGL_TRUE;
1375
1376 /* Fill vtbl last to prevent accidentally calling virtual function during
1377 * initialization.
1378 */
1379 dri2_dpy->vtbl = &dri2_wl_display_vtbl;
1380
1381 return EGL_TRUE;
1382
1383 cleanup:
1384 dri2_display_destroy(disp);
1385 return EGL_FALSE;
1386 }
1387
1388 static int
1389 dri2_wl_swrast_get_stride_for_format(int format, int w)
1390 {
1391 if (format == WL_SHM_FORMAT_RGB565)
1392 return 2 * w;
1393 else /* ARGB8888 || XRGB8888 */
1394 return 4 * w;
1395 }
1396
1397 /*
1398 * Taken from weston shared/os-compatibility.c
1399 */
1400
1401 #ifndef HAVE_MKOSTEMP
1402
1403 static int
1404 set_cloexec_or_close(int fd)
1405 {
1406 long flags;
1407
1408 if (fd == -1)
1409 return -1;
1410
1411 flags = fcntl(fd, F_GETFD);
1412 if (flags == -1)
1413 goto err;
1414
1415 if (fcntl(fd, F_SETFD, flags | FD_CLOEXEC) == -1)
1416 goto err;
1417
1418 return fd;
1419
1420 err:
1421 close(fd);
1422 return -1;
1423 }
1424
1425 #endif
1426
1427 /*
1428 * Taken from weston shared/os-compatibility.c
1429 */
1430
1431 static int
1432 create_tmpfile_cloexec(char *tmpname)
1433 {
1434 int fd;
1435
1436 #ifdef HAVE_MKOSTEMP
1437 fd = mkostemp(tmpname, O_CLOEXEC);
1438 if (fd >= 0)
1439 unlink(tmpname);
1440 #else
1441 fd = mkstemp(tmpname);
1442 if (fd >= 0) {
1443 fd = set_cloexec_or_close(fd);
1444 unlink(tmpname);
1445 }
1446 #endif
1447
1448 return fd;
1449 }
1450
1451 /*
1452 * Taken from weston shared/os-compatibility.c
1453 *
1454 * Create a new, unique, anonymous file of the given size, and
1455 * return the file descriptor for it. The file descriptor is set
1456 * CLOEXEC. The file is immediately suitable for mmap()'ing
1457 * the given size at offset zero.
1458 *
1459 * The file should not have a permanent backing store like a disk,
1460 * but may have if XDG_RUNTIME_DIR is not properly implemented in OS.
1461 *
1462 * The file name is deleted from the file system.
1463 *
1464 * The file is suitable for buffer sharing between processes by
1465 * transmitting the file descriptor over Unix sockets using the
1466 * SCM_RIGHTS methods.
1467 *
1468 * If the C library implements posix_fallocate(), it is used to
1469 * guarantee that disk space is available for the file at the
1470 * given size. If disk space is insufficent, errno is set to ENOSPC.
1471 * If posix_fallocate() is not supported, program may receive
1472 * SIGBUS on accessing mmap()'ed file contents instead.
1473 */
1474 static int
1475 os_create_anonymous_file(off_t size)
1476 {
1477 static const char template[] = "/mesa-shared-XXXXXX";
1478 const char *path;
1479 char *name;
1480 int fd;
1481 int ret;
1482
1483 path = getenv("XDG_RUNTIME_DIR");
1484 if (!path) {
1485 errno = ENOENT;
1486 return -1;
1487 }
1488
1489 name = malloc(strlen(path) + sizeof(template));
1490 if (!name)
1491 return -1;
1492
1493 strcpy(name, path);
1494 strcat(name, template);
1495
1496 fd = create_tmpfile_cloexec(name);
1497
1498 free(name);
1499
1500 if (fd < 0)
1501 return -1;
1502
1503 ret = ftruncate(fd, size);
1504 if (ret < 0) {
1505 close(fd);
1506 return -1;
1507 }
1508
1509 return fd;
1510 }
1511
1512
1513 static EGLBoolean
1514 dri2_wl_swrast_allocate_buffer(struct dri2_egl_surface *dri2_surf,
1515 int format, int w, int h,
1516 void **data, int *size,
1517 struct wl_buffer **buffer)
1518 {
1519 struct dri2_egl_display *dri2_dpy =
1520 dri2_egl_display(dri2_surf->base.Resource.Display);
1521 struct wl_shm_pool *pool;
1522 int fd, stride, size_map;
1523 void *data_map;
1524
1525 stride = dri2_wl_swrast_get_stride_for_format(format, w);
1526 size_map = h * stride;
1527
1528 /* Create a sharable buffer */
1529 fd = os_create_anonymous_file(size_map);
1530 if (fd < 0)
1531 return EGL_FALSE;
1532
1533 data_map = mmap(NULL, size_map, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
1534 if (data_map == MAP_FAILED) {
1535 close(fd);
1536 return EGL_FALSE;
1537 }
1538
1539 /* Share it in a wl_buffer */
1540 pool = wl_shm_create_pool(dri2_dpy->wl_shm, fd, size_map);
1541 wl_proxy_set_queue((struct wl_proxy *)pool, dri2_surf->wl_queue);
1542 *buffer = wl_shm_pool_create_buffer(pool, 0, w, h, stride, format);
1543 wl_shm_pool_destroy(pool);
1544 close(fd);
1545
1546 *data = data_map;
1547 *size = size_map;
1548 return EGL_TRUE;
1549 }
1550
1551 static int
1552 swrast_update_buffers(struct dri2_egl_surface *dri2_surf)
1553 {
1554 struct dri2_egl_display *dri2_dpy =
1555 dri2_egl_display(dri2_surf->base.Resource.Display);
1556
1557 /* we need to do the following operations only once per frame */
1558 if (dri2_surf->back)
1559 return 0;
1560
1561 if (dri2_surf->base.Width != dri2_surf->wl_win->width ||
1562 dri2_surf->base.Height != dri2_surf->wl_win->height) {
1563
1564 dri2_wl_release_buffers(dri2_surf);
1565
1566 dri2_surf->base.Width = dri2_surf->wl_win->width;
1567 dri2_surf->base.Height = dri2_surf->wl_win->height;
1568 dri2_surf->dx = dri2_surf->wl_win->dx;
1569 dri2_surf->dy = dri2_surf->wl_win->dy;
1570 dri2_surf->current = NULL;
1571 }
1572
1573 /* find back buffer */
1574
1575 /* There might be a buffer release already queued that wasn't processed */
1576 wl_display_dispatch_queue_pending(dri2_dpy->wl_dpy, dri2_surf->wl_queue);
1577
1578 /* try get free buffer already created */
1579 for (int i = 0; i < ARRAY_SIZE(dri2_surf->color_buffers); i++) {
1580 if (!dri2_surf->color_buffers[i].locked &&
1581 dri2_surf->color_buffers[i].wl_buffer) {
1582 dri2_surf->back = &dri2_surf->color_buffers[i];
1583 break;
1584 }
1585 }
1586
1587 /* else choose any another free location */
1588 if (!dri2_surf->back) {
1589 for (int i = 0; i < ARRAY_SIZE(dri2_surf->color_buffers); i++) {
1590 if (!dri2_surf->color_buffers[i].locked) {
1591 dri2_surf->back = &dri2_surf->color_buffers[i];
1592 if (!dri2_wl_swrast_allocate_buffer(dri2_surf,
1593 dri2_surf->format,
1594 dri2_surf->base.Width,
1595 dri2_surf->base.Height,
1596 &dri2_surf->back->data,
1597 &dri2_surf->back->data_size,
1598 &dri2_surf->back->wl_buffer)) {
1599 _eglError(EGL_BAD_ALLOC, "failed to allocate color buffer");
1600 return -1;
1601 }
1602 wl_buffer_add_listener(dri2_surf->back->wl_buffer,
1603 &wl_buffer_listener, dri2_surf);
1604 break;
1605 }
1606 }
1607 }
1608
1609 if (!dri2_surf->back) {
1610 _eglError(EGL_BAD_ALLOC, "failed to find free buffer");
1611 return -1;
1612 }
1613
1614 dri2_surf->back->locked = true;
1615
1616 /* If we have an extra unlocked buffer at this point, we had to do triple
1617 * buffering for a while, but now can go back to just double buffering.
1618 * That means we can free any unlocked buffer now. */
1619 for (int i = 0; i < ARRAY_SIZE(dri2_surf->color_buffers); i++) {
1620 if (!dri2_surf->color_buffers[i].locked &&
1621 dri2_surf->color_buffers[i].wl_buffer) {
1622 wl_buffer_destroy(dri2_surf->color_buffers[i].wl_buffer);
1623 munmap(dri2_surf->color_buffers[i].data,
1624 dri2_surf->color_buffers[i].data_size);
1625 dri2_surf->color_buffers[i].wl_buffer = NULL;
1626 dri2_surf->color_buffers[i].data = NULL;
1627 }
1628 }
1629
1630 return 0;
1631 }
1632
1633 static void*
1634 dri2_wl_swrast_get_frontbuffer_data(struct dri2_egl_surface *dri2_surf)
1635 {
1636 /* if there has been a resize: */
1637 if (!dri2_surf->current)
1638 return NULL;
1639
1640 return dri2_surf->current->data;
1641 }
1642
1643 static void*
1644 dri2_wl_swrast_get_backbuffer_data(struct dri2_egl_surface *dri2_surf)
1645 {
1646 assert(dri2_surf->back);
1647 return dri2_surf->back->data;
1648 }
1649
1650 static void
1651 dri2_wl_swrast_commit_backbuffer(struct dri2_egl_surface *dri2_surf)
1652 {
1653 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dri2_surf->base.Resource.Display);
1654
1655 while (dri2_surf->throttle_callback != NULL)
1656 if (wl_display_dispatch_queue(dri2_dpy->wl_dpy,
1657 dri2_surf->wl_queue) == -1)
1658 return;
1659
1660 if (dri2_surf->base.SwapInterval > 0) {
1661 dri2_surf->throttle_callback =
1662 wl_surface_frame(dri2_surf->wl_surface_wrapper);
1663 wl_callback_add_listener(dri2_surf->throttle_callback,
1664 &throttle_listener, dri2_surf);
1665 }
1666
1667 dri2_surf->current = dri2_surf->back;
1668 dri2_surf->back = NULL;
1669
1670 wl_surface_attach(dri2_surf->wl_surface_wrapper,
1671 dri2_surf->current->wl_buffer,
1672 dri2_surf->dx, dri2_surf->dy);
1673
1674 dri2_surf->wl_win->attached_width = dri2_surf->base.Width;
1675 dri2_surf->wl_win->attached_height = dri2_surf->base.Height;
1676 /* reset resize growing parameters */
1677 dri2_surf->dx = 0;
1678 dri2_surf->dy = 0;
1679
1680 wl_surface_damage(dri2_surf->wl_surface_wrapper,
1681 0, 0, INT32_MAX, INT32_MAX);
1682 wl_surface_commit(dri2_surf->wl_surface_wrapper);
1683
1684 /* If we're not waiting for a frame callback then we'll at least throttle
1685 * to a sync callback so that we always give a chance for the compositor to
1686 * handle the commit and send a release event before checking for a free
1687 * buffer */
1688 if (dri2_surf->throttle_callback == NULL) {
1689 dri2_surf->throttle_callback = wl_display_sync(dri2_dpy->wl_dpy_wrapper);
1690 wl_callback_add_listener(dri2_surf->throttle_callback,
1691 &throttle_listener, dri2_surf);
1692 }
1693
1694 wl_display_flush(dri2_dpy->wl_dpy);
1695 }
1696
1697 static void
1698 dri2_wl_swrast_get_drawable_info(__DRIdrawable * draw,
1699 int *x, int *y, int *w, int *h,
1700 void *loaderPrivate)
1701 {
1702 struct dri2_egl_surface *dri2_surf = loaderPrivate;
1703
1704 (void) swrast_update_buffers(dri2_surf);
1705 *x = 0;
1706 *y = 0;
1707 *w = dri2_surf->base.Width;
1708 *h = dri2_surf->base.Height;
1709 }
1710
1711 static void
1712 dri2_wl_swrast_get_image(__DRIdrawable * read,
1713 int x, int y, int w, int h,
1714 char *data, void *loaderPrivate)
1715 {
1716 struct dri2_egl_surface *dri2_surf = loaderPrivate;
1717 int copy_width = dri2_wl_swrast_get_stride_for_format(dri2_surf->format, w);
1718 int x_offset = dri2_wl_swrast_get_stride_for_format(dri2_surf->format, x);
1719 int src_stride = dri2_wl_swrast_get_stride_for_format(dri2_surf->format, dri2_surf->base.Width);
1720 int dst_stride = copy_width;
1721 char *src, *dst;
1722
1723 src = dri2_wl_swrast_get_frontbuffer_data(dri2_surf);
1724 if (!src) {
1725 memset(data, 0, copy_width * h);
1726 return;
1727 }
1728
1729 assert(data != src);
1730 assert(copy_width <= src_stride);
1731
1732 src += x_offset;
1733 src += y * src_stride;
1734 dst = data;
1735
1736 if (copy_width > src_stride-x_offset)
1737 copy_width = src_stride-x_offset;
1738 if (h > dri2_surf->base.Height-y)
1739 h = dri2_surf->base.Height-y;
1740
1741 for (; h>0; h--) {
1742 memcpy(dst, src, copy_width);
1743 src += src_stride;
1744 dst += dst_stride;
1745 }
1746 }
1747
1748 static void
1749 dri2_wl_swrast_put_image2(__DRIdrawable * draw, int op,
1750 int x, int y, int w, int h, int stride,
1751 char *data, void *loaderPrivate)
1752 {
1753 struct dri2_egl_surface *dri2_surf = loaderPrivate;
1754 int copy_width = dri2_wl_swrast_get_stride_for_format(dri2_surf->format, w);
1755 int dst_stride = dri2_wl_swrast_get_stride_for_format(dri2_surf->format, dri2_surf->base.Width);
1756 int x_offset = dri2_wl_swrast_get_stride_for_format(dri2_surf->format, x);
1757 char *src, *dst;
1758
1759 assert(copy_width <= stride);
1760
1761 (void) swrast_update_buffers(dri2_surf);
1762 dst = dri2_wl_swrast_get_backbuffer_data(dri2_surf);
1763
1764 /* partial copy, copy old content */
1765 if (copy_width < dst_stride)
1766 dri2_wl_swrast_get_image(draw, 0, 0,
1767 dri2_surf->base.Width, dri2_surf->base.Height,
1768 dst, loaderPrivate);
1769
1770 dst += x_offset;
1771 dst += y * dst_stride;
1772
1773 src = data;
1774
1775 /* drivers expect we do these checks (and some rely on it) */
1776 if (copy_width > dst_stride-x_offset)
1777 copy_width = dst_stride-x_offset;
1778 if (h > dri2_surf->base.Height-y)
1779 h = dri2_surf->base.Height-y;
1780
1781 for (; h>0; h--) {
1782 memcpy(dst, src, copy_width);
1783 src += stride;
1784 dst += dst_stride;
1785 }
1786 dri2_wl_swrast_commit_backbuffer(dri2_surf);
1787 }
1788
1789 static void
1790 dri2_wl_swrast_put_image(__DRIdrawable * draw, int op,
1791 int x, int y, int w, int h,
1792 char *data, void *loaderPrivate)
1793 {
1794 struct dri2_egl_surface *dri2_surf = loaderPrivate;
1795 int stride;
1796
1797 stride = dri2_wl_swrast_get_stride_for_format(dri2_surf->format, w);
1798 dri2_wl_swrast_put_image2(draw, op, x, y, w, h,
1799 stride, data, loaderPrivate);
1800 }
1801
1802 static EGLBoolean
1803 dri2_wl_swrast_swap_buffers(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *draw)
1804 {
1805 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1806 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(draw);
1807
1808 dri2_dpy->core->swapBuffers(dri2_surf->dri_drawable);
1809 return EGL_TRUE;
1810 }
1811
1812 static void
1813 shm_handle_format(void *data, struct wl_shm *shm, uint32_t format)
1814 {
1815 struct dri2_egl_display *dri2_dpy = data;
1816
1817 switch (format) {
1818 case WL_SHM_FORMAT_ARGB8888:
1819 dri2_dpy->formats |= HAS_ARGB8888;
1820 break;
1821 case WL_SHM_FORMAT_XRGB8888:
1822 dri2_dpy->formats |= HAS_XRGB8888;
1823 break;
1824 case WL_SHM_FORMAT_RGB565:
1825 dri2_dpy->formats |= HAS_RGB565;
1826 break;
1827 }
1828 }
1829
1830 static const struct wl_shm_listener shm_listener = {
1831 .format = shm_handle_format
1832 };
1833
1834 static void
1835 registry_handle_global_swrast(void *data, struct wl_registry *registry,
1836 uint32_t name, const char *interface,
1837 uint32_t version)
1838 {
1839 struct dri2_egl_display *dri2_dpy = data;
1840
1841 if (strcmp(interface, "wl_shm") == 0) {
1842 dri2_dpy->wl_shm =
1843 wl_registry_bind(registry, name, &wl_shm_interface, 1);
1844 wl_shm_add_listener(dri2_dpy->wl_shm, &shm_listener, dri2_dpy);
1845 }
1846 }
1847
1848 static const struct wl_registry_listener registry_listener_swrast = {
1849 .global = registry_handle_global_swrast,
1850 .global_remove = registry_handle_global_remove
1851 };
1852
1853 static const struct dri2_egl_display_vtbl dri2_wl_swrast_display_vtbl = {
1854 .authenticate = NULL,
1855 .create_window_surface = dri2_wl_create_window_surface,
1856 .create_pixmap_surface = dri2_wl_create_pixmap_surface,
1857 .create_pbuffer_surface = dri2_fallback_create_pbuffer_surface,
1858 .destroy_surface = dri2_wl_destroy_surface,
1859 .create_image = dri2_create_image_khr,
1860 .swap_buffers = dri2_wl_swrast_swap_buffers,
1861 .swap_buffers_with_damage = dri2_fallback_swap_buffers_with_damage,
1862 .swap_buffers_region = dri2_fallback_swap_buffers_region,
1863 .post_sub_buffer = dri2_fallback_post_sub_buffer,
1864 .copy_buffers = dri2_fallback_copy_buffers,
1865 .query_buffer_age = dri2_fallback_query_buffer_age,
1866 .create_wayland_buffer_from_image = dri2_fallback_create_wayland_buffer_from_image,
1867 .get_sync_values = dri2_fallback_get_sync_values,
1868 .get_dri_drawable = dri2_surface_get_dri_drawable,
1869 };
1870
1871 static const __DRIswrastLoaderExtension swrast_loader_extension = {
1872 .base = { __DRI_SWRAST_LOADER, 2 },
1873
1874 .getDrawableInfo = dri2_wl_swrast_get_drawable_info,
1875 .putImage = dri2_wl_swrast_put_image,
1876 .getImage = dri2_wl_swrast_get_image,
1877 .putImage2 = dri2_wl_swrast_put_image2,
1878 };
1879
1880 static const __DRIextension *swrast_loader_extensions[] = {
1881 &swrast_loader_extension.base,
1882 &image_lookup_extension.base,
1883 NULL,
1884 };
1885
1886 static EGLBoolean
1887 dri2_initialize_wayland_swrast(_EGLDriver *drv, _EGLDisplay *disp)
1888 {
1889 struct dri2_egl_display *dri2_dpy;
1890
1891 loader_set_logger(_eglLog);
1892
1893 dri2_dpy = calloc(1, sizeof *dri2_dpy);
1894 if (!dri2_dpy)
1895 return _eglError(EGL_BAD_ALLOC, "eglInitialize");
1896
1897 dri2_dpy->fd = -1;
1898 disp->DriverData = (void *) dri2_dpy;
1899 if (disp->PlatformDisplay == NULL) {
1900 dri2_dpy->wl_dpy = wl_display_connect(NULL);
1901 if (dri2_dpy->wl_dpy == NULL)
1902 goto cleanup;
1903 dri2_dpy->own_device = true;
1904 } else {
1905 dri2_dpy->wl_dpy = disp->PlatformDisplay;
1906 }
1907
1908 dri2_dpy->wl_queue = wl_display_create_queue(dri2_dpy->wl_dpy);
1909
1910 dri2_dpy->wl_dpy_wrapper = wl_proxy_create_wrapper(dri2_dpy->wl_dpy);
1911 if (dri2_dpy->wl_dpy_wrapper == NULL)
1912 goto cleanup;
1913
1914 wl_proxy_set_queue((struct wl_proxy *) dri2_dpy->wl_dpy_wrapper,
1915 dri2_dpy->wl_queue);
1916
1917 if (dri2_dpy->own_device)
1918 wl_display_dispatch_pending(dri2_dpy->wl_dpy);
1919
1920 dri2_dpy->wl_registry = wl_display_get_registry(dri2_dpy->wl_dpy_wrapper);
1921 wl_registry_add_listener(dri2_dpy->wl_registry,
1922 &registry_listener_swrast, dri2_dpy);
1923
1924 if (roundtrip(dri2_dpy) < 0 || dri2_dpy->wl_shm == NULL)
1925 goto cleanup;
1926
1927 if (roundtrip(dri2_dpy) < 0 || dri2_dpy->formats == 0)
1928 goto cleanup;
1929
1930 dri2_dpy->driver_name = strdup("swrast");
1931 if (!dri2_load_driver_swrast(disp))
1932 goto cleanup;
1933
1934 dri2_dpy->loader_extensions = swrast_loader_extensions;
1935
1936 if (!dri2_create_screen(disp))
1937 goto cleanup;
1938
1939 if (!dri2_setup_extensions(disp))
1940 goto cleanup;
1941
1942 dri2_setup_screen(disp);
1943
1944 dri2_wl_setup_swap_interval(disp);
1945
1946 if (!dri2_wl_add_configs_for_visuals(drv, disp)) {
1947 _eglError(EGL_NOT_INITIALIZED, "DRI2: failed to add configs");
1948 goto cleanup;
1949 }
1950
1951 /* Fill vtbl last to prevent accidentally calling virtual function during
1952 * initialization.
1953 */
1954 dri2_dpy->vtbl = &dri2_wl_swrast_display_vtbl;
1955
1956 return EGL_TRUE;
1957
1958 cleanup:
1959 dri2_display_destroy(disp);
1960 return EGL_FALSE;
1961 }
1962
1963 EGLBoolean
1964 dri2_initialize_wayland(_EGLDriver *drv, _EGLDisplay *disp)
1965 {
1966 EGLBoolean initialized = EGL_TRUE;
1967
1968 int hw_accel = (getenv("LIBGL_ALWAYS_SOFTWARE") == NULL);
1969
1970 if (hw_accel) {
1971 if (!dri2_initialize_wayland_drm(drv, disp)) {
1972 initialized = dri2_initialize_wayland_swrast(drv, disp);
1973 }
1974 } else {
1975 initialized = dri2_initialize_wayland_swrast(drv, disp);
1976 }
1977
1978 return initialized;
1979
1980 }