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egl/dri2: add image extension such it's usable by swrast driver
[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(struct dri2_egl_display *dri2_dpy)
1144 {
1145 GLint vblank_mode = DRI_CONF_VBLANK_DEF_INTERVAL_1;
1146
1147 /* We can't use values greater than 1 on Wayland because we are using the
1148 * frame callback to synchronise the frame and the only way we be sure to
1149 * get a frame callback is to attach a new buffer. Therefore we can't just
1150 * sit drawing nothing to wait until the next ‘n’ frame callbacks */
1151
1152 if (dri2_dpy->config)
1153 dri2_dpy->config->configQueryi(dri2_dpy->dri_screen,
1154 "vblank_mode", &vblank_mode);
1155 switch (vblank_mode) {
1156 case DRI_CONF_VBLANK_NEVER:
1157 dri2_dpy->min_swap_interval = 0;
1158 dri2_dpy->max_swap_interval = 0;
1159 dri2_dpy->default_swap_interval = 0;
1160 break;
1161 case DRI_CONF_VBLANK_ALWAYS_SYNC:
1162 dri2_dpy->min_swap_interval = 1;
1163 dri2_dpy->max_swap_interval = 1;
1164 dri2_dpy->default_swap_interval = 1;
1165 break;
1166 case DRI_CONF_VBLANK_DEF_INTERVAL_0:
1167 dri2_dpy->min_swap_interval = 0;
1168 dri2_dpy->max_swap_interval = 1;
1169 dri2_dpy->default_swap_interval = 0;
1170 break;
1171 default:
1172 case DRI_CONF_VBLANK_DEF_INTERVAL_1:
1173 dri2_dpy->min_swap_interval = 0;
1174 dri2_dpy->max_swap_interval = 1;
1175 dri2_dpy->default_swap_interval = 1;
1176 break;
1177 }
1178 }
1179
1180 static const struct dri2_egl_display_vtbl dri2_wl_display_vtbl = {
1181 .authenticate = dri2_wl_authenticate,
1182 .create_window_surface = dri2_wl_create_window_surface,
1183 .create_pixmap_surface = dri2_wl_create_pixmap_surface,
1184 .create_pbuffer_surface = dri2_fallback_create_pbuffer_surface,
1185 .destroy_surface = dri2_wl_destroy_surface,
1186 .create_image = dri2_create_image_khr,
1187 .swap_buffers = dri2_wl_swap_buffers,
1188 .swap_buffers_with_damage = dri2_wl_swap_buffers_with_damage,
1189 .swap_buffers_region = dri2_fallback_swap_buffers_region,
1190 .set_damage_region = dri2_fallback_set_damage_region,
1191 .post_sub_buffer = dri2_fallback_post_sub_buffer,
1192 .copy_buffers = dri2_fallback_copy_buffers,
1193 .query_buffer_age = dri2_wl_query_buffer_age,
1194 .create_wayland_buffer_from_image = dri2_wl_create_wayland_buffer_from_image,
1195 .get_sync_values = dri2_fallback_get_sync_values,
1196 .get_dri_drawable = dri2_surface_get_dri_drawable,
1197 };
1198
1199 static const __DRIextension *dri2_loader_extensions[] = {
1200 &dri2_loader_extension.base,
1201 &image_loader_extension.base,
1202 &image_lookup_extension.base,
1203 &use_invalidate.base,
1204 NULL,
1205 };
1206
1207 static const __DRIextension *image_loader_extensions[] = {
1208 &image_loader_extension.base,
1209 &image_lookup_extension.base,
1210 &use_invalidate.base,
1211 NULL,
1212 };
1213
1214 static EGLBoolean
1215 dri2_wl_add_configs_for_visuals(_EGLDriver *drv, _EGLDisplay *disp)
1216 {
1217 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1218 static const struct {
1219 const char *format_name;
1220 int has_format;
1221 unsigned int rgba_masks[4];
1222 } visuals[] = {
1223 { "XRGB8888", HAS_XRGB8888, { 0xff0000, 0xff00, 0x00ff, 0xff000000 } },
1224 { "ARGB8888", HAS_ARGB8888, { 0xff0000, 0xff00, 0x00ff, 0 } },
1225 { "RGB565", HAS_RGB565, { 0x00f800, 0x07e0, 0x001f, 0 } },
1226 };
1227 unsigned int format_count[ARRAY_SIZE(visuals)] = { 0 };
1228 unsigned int count = 0;
1229
1230 for (unsigned i = 0; dri2_dpy->driver_configs[i]; i++) {
1231 for (unsigned j = 0; j < ARRAY_SIZE(visuals); j++) {
1232 struct dri2_egl_config *dri2_conf;
1233
1234 if (!(dri2_dpy->formats & visuals[j].has_format))
1235 continue;
1236
1237 dri2_conf = dri2_add_config(disp, dri2_dpy->driver_configs[i],
1238 count + 1, EGL_WINDOW_BIT, NULL, visuals[j].rgba_masks);
1239 if (dri2_conf) {
1240 if (dri2_conf->base.ConfigID == count + 1)
1241 count++;
1242 format_count[j]++;
1243 }
1244 }
1245 }
1246
1247 for (unsigned i = 0; i < ARRAY_SIZE(format_count); i++) {
1248 if (!format_count[i]) {
1249 _eglLog(_EGL_DEBUG, "No DRI config supports native format %s",
1250 visuals[i].format_name);
1251 }
1252 }
1253
1254 return (count != 0);
1255 }
1256
1257 static EGLBoolean
1258 dri2_initialize_wayland_drm(_EGLDriver *drv, _EGLDisplay *disp)
1259 {
1260 struct dri2_egl_display *dri2_dpy;
1261
1262 loader_set_logger(_eglLog);
1263
1264 dri2_dpy = calloc(1, sizeof *dri2_dpy);
1265 if (!dri2_dpy)
1266 return _eglError(EGL_BAD_ALLOC, "eglInitialize");
1267
1268 dri2_dpy->fd = -1;
1269 disp->DriverData = (void *) dri2_dpy;
1270 if (disp->PlatformDisplay == NULL) {
1271 dri2_dpy->wl_dpy = wl_display_connect(NULL);
1272 if (dri2_dpy->wl_dpy == NULL)
1273 goto cleanup;
1274 dri2_dpy->own_device = true;
1275 } else {
1276 dri2_dpy->wl_dpy = disp->PlatformDisplay;
1277 }
1278
1279 if (!u_vector_init(&dri2_dpy->wl_modifiers.xrgb8888, sizeof(uint64_t), 32) ||
1280 !u_vector_init(&dri2_dpy->wl_modifiers.argb8888, sizeof(uint64_t), 32) ||
1281 !u_vector_init(&dri2_dpy->wl_modifiers.rgb565, sizeof(uint64_t), 32)) {
1282 goto cleanup;
1283 }
1284
1285 dri2_dpy->wl_queue = wl_display_create_queue(dri2_dpy->wl_dpy);
1286
1287 dri2_dpy->wl_dpy_wrapper = wl_proxy_create_wrapper(dri2_dpy->wl_dpy);
1288 if (dri2_dpy->wl_dpy_wrapper == NULL)
1289 goto cleanup;
1290
1291 wl_proxy_set_queue((struct wl_proxy *) dri2_dpy->wl_dpy_wrapper,
1292 dri2_dpy->wl_queue);
1293
1294 if (dri2_dpy->own_device)
1295 wl_display_dispatch_pending(dri2_dpy->wl_dpy);
1296
1297 dri2_dpy->wl_registry = wl_display_get_registry(dri2_dpy->wl_dpy_wrapper);
1298 wl_registry_add_listener(dri2_dpy->wl_registry,
1299 &registry_listener_drm, dri2_dpy);
1300 if (roundtrip(dri2_dpy) < 0 || dri2_dpy->wl_drm == NULL)
1301 goto cleanup;
1302
1303 if (roundtrip(dri2_dpy) < 0 || dri2_dpy->fd == -1)
1304 goto cleanup;
1305
1306 if (roundtrip(dri2_dpy) < 0 || !dri2_dpy->authenticated)
1307 goto cleanup;
1308
1309 dri2_dpy->fd = loader_get_user_preferred_fd(dri2_dpy->fd,
1310 &dri2_dpy->is_different_gpu);
1311 if (dri2_dpy->is_different_gpu) {
1312 free(dri2_dpy->device_name);
1313 dri2_dpy->device_name = loader_get_device_name_for_fd(dri2_dpy->fd);
1314 if (!dri2_dpy->device_name) {
1315 _eglError(EGL_BAD_ALLOC, "wayland-egl: failed to get device name "
1316 "for requested GPU");
1317 goto cleanup;
1318 }
1319 }
1320
1321 /* we have to do the check now, because loader_get_user_preferred_fd
1322 * will return a render-node when the requested gpu is different
1323 * to the server, but also if the client asks for the same gpu than
1324 * the server by requesting its pci-id */
1325 dri2_dpy->is_render_node = drmGetNodeTypeFromFd(dri2_dpy->fd) == DRM_NODE_RENDER;
1326
1327 dri2_dpy->driver_name = loader_get_driver_for_fd(dri2_dpy->fd);
1328 if (dri2_dpy->driver_name == NULL) {
1329 _eglError(EGL_BAD_ALLOC, "DRI2: failed to get driver name");
1330 goto cleanup;
1331 }
1332
1333 /* render nodes cannot use Gem names, and thus do not support
1334 * the __DRI_DRI2_LOADER extension */
1335 if (!dri2_dpy->is_render_node) {
1336 dri2_dpy->loader_extensions = dri2_loader_extensions;
1337 if (!dri2_load_driver(disp)) {
1338 _eglError(EGL_BAD_ALLOC, "DRI2: failed to load driver");
1339 goto cleanup;
1340 }
1341 } else {
1342 dri2_dpy->loader_extensions = image_loader_extensions;
1343 if (!dri2_load_driver_dri3(disp)) {
1344 _eglError(EGL_BAD_ALLOC, "DRI3: failed to load driver");
1345 goto cleanup;
1346 }
1347 }
1348
1349 if (!dri2_create_screen(disp))
1350 goto cleanup;
1351
1352 if (!dri2_setup_extensions(disp))
1353 goto cleanup;
1354
1355 dri2_setup_screen(disp);
1356
1357 dri2_wl_setup_swap_interval(dri2_dpy);
1358
1359 /* To use Prime, we must have _DRI_IMAGE v7 at least.
1360 * createImageFromFds support indicates that Prime export/import
1361 * is supported by the driver. Fall back to
1362 * gem names if we don't have Prime support. */
1363
1364 if (dri2_dpy->image->base.version < 7 ||
1365 dri2_dpy->image->createImageFromFds == NULL)
1366 dri2_dpy->capabilities &= ~WL_DRM_CAPABILITY_PRIME;
1367
1368 /* We cannot use Gem names with render-nodes, only prime fds (dma-buf).
1369 * The server needs to accept them */
1370 if (dri2_dpy->is_render_node &&
1371 !(dri2_dpy->capabilities & WL_DRM_CAPABILITY_PRIME)) {
1372 _eglLog(_EGL_WARNING, "wayland-egl: display is not render-node capable");
1373 goto cleanup;
1374 }
1375
1376 if (dri2_dpy->is_different_gpu &&
1377 (dri2_dpy->image->base.version < 9 ||
1378 dri2_dpy->image->blitImage == NULL)) {
1379 _eglLog(_EGL_WARNING, "wayland-egl: Different GPU selected, but the "
1380 "Image extension in the driver is not "
1381 "compatible. Version 9 or later and blitImage() "
1382 "are required");
1383 goto cleanup;
1384 }
1385
1386 if (!dri2_wl_add_configs_for_visuals(drv, disp)) {
1387 _eglError(EGL_NOT_INITIALIZED, "DRI2: failed to add configs");
1388 goto cleanup;
1389 }
1390
1391 dri2_set_WL_bind_wayland_display(drv, disp);
1392 /* When cannot convert EGLImage to wl_buffer when on a different gpu,
1393 * because the buffer of the EGLImage has likely a tiling mode the server
1394 * gpu won't support. These is no way to check for now. Thus do not support the
1395 * extension */
1396 if (!dri2_dpy->is_different_gpu)
1397 disp->Extensions.WL_create_wayland_buffer_from_image = EGL_TRUE;
1398
1399 disp->Extensions.EXT_buffer_age = EGL_TRUE;
1400
1401 disp->Extensions.EXT_swap_buffers_with_damage = EGL_TRUE;
1402
1403 /* Fill vtbl last to prevent accidentally calling virtual function during
1404 * initialization.
1405 */
1406 dri2_dpy->vtbl = &dri2_wl_display_vtbl;
1407
1408 return EGL_TRUE;
1409
1410 cleanup:
1411 dri2_display_destroy(disp);
1412 return EGL_FALSE;
1413 }
1414
1415 static int
1416 dri2_wl_swrast_get_stride_for_format(int format, int w)
1417 {
1418 if (format == WL_SHM_FORMAT_RGB565)
1419 return 2 * w;
1420 else /* ARGB8888 || XRGB8888 */
1421 return 4 * w;
1422 }
1423
1424 /*
1425 * Taken from weston shared/os-compatibility.c
1426 */
1427
1428 #ifndef HAVE_MKOSTEMP
1429
1430 static int
1431 set_cloexec_or_close(int fd)
1432 {
1433 long flags;
1434
1435 if (fd == -1)
1436 return -1;
1437
1438 flags = fcntl(fd, F_GETFD);
1439 if (flags == -1)
1440 goto err;
1441
1442 if (fcntl(fd, F_SETFD, flags | FD_CLOEXEC) == -1)
1443 goto err;
1444
1445 return fd;
1446
1447 err:
1448 close(fd);
1449 return -1;
1450 }
1451
1452 #endif
1453
1454 /*
1455 * Taken from weston shared/os-compatibility.c
1456 */
1457
1458 static int
1459 create_tmpfile_cloexec(char *tmpname)
1460 {
1461 int fd;
1462
1463 #ifdef HAVE_MKOSTEMP
1464 fd = mkostemp(tmpname, O_CLOEXEC);
1465 if (fd >= 0)
1466 unlink(tmpname);
1467 #else
1468 fd = mkstemp(tmpname);
1469 if (fd >= 0) {
1470 fd = set_cloexec_or_close(fd);
1471 unlink(tmpname);
1472 }
1473 #endif
1474
1475 return fd;
1476 }
1477
1478 /*
1479 * Taken from weston shared/os-compatibility.c
1480 *
1481 * Create a new, unique, anonymous file of the given size, and
1482 * return the file descriptor for it. The file descriptor is set
1483 * CLOEXEC. The file is immediately suitable for mmap()'ing
1484 * the given size at offset zero.
1485 *
1486 * The file should not have a permanent backing store like a disk,
1487 * but may have if XDG_RUNTIME_DIR is not properly implemented in OS.
1488 *
1489 * The file name is deleted from the file system.
1490 *
1491 * The file is suitable for buffer sharing between processes by
1492 * transmitting the file descriptor over Unix sockets using the
1493 * SCM_RIGHTS methods.
1494 *
1495 * If the C library implements posix_fallocate(), it is used to
1496 * guarantee that disk space is available for the file at the
1497 * given size. If disk space is insufficent, errno is set to ENOSPC.
1498 * If posix_fallocate() is not supported, program may receive
1499 * SIGBUS on accessing mmap()'ed file contents instead.
1500 */
1501 static int
1502 os_create_anonymous_file(off_t size)
1503 {
1504 static const char template[] = "/mesa-shared-XXXXXX";
1505 const char *path;
1506 char *name;
1507 int fd;
1508 int ret;
1509
1510 path = getenv("XDG_RUNTIME_DIR");
1511 if (!path) {
1512 errno = ENOENT;
1513 return -1;
1514 }
1515
1516 name = malloc(strlen(path) + sizeof(template));
1517 if (!name)
1518 return -1;
1519
1520 strcpy(name, path);
1521 strcat(name, template);
1522
1523 fd = create_tmpfile_cloexec(name);
1524
1525 free(name);
1526
1527 if (fd < 0)
1528 return -1;
1529
1530 ret = ftruncate(fd, size);
1531 if (ret < 0) {
1532 close(fd);
1533 return -1;
1534 }
1535
1536 return fd;
1537 }
1538
1539
1540 static EGLBoolean
1541 dri2_wl_swrast_allocate_buffer(struct dri2_egl_surface *dri2_surf,
1542 int format, int w, int h,
1543 void **data, int *size,
1544 struct wl_buffer **buffer)
1545 {
1546 struct dri2_egl_display *dri2_dpy =
1547 dri2_egl_display(dri2_surf->base.Resource.Display);
1548 struct wl_shm_pool *pool;
1549 int fd, stride, size_map;
1550 void *data_map;
1551
1552 stride = dri2_wl_swrast_get_stride_for_format(format, w);
1553 size_map = h * stride;
1554
1555 /* Create a sharable buffer */
1556 fd = os_create_anonymous_file(size_map);
1557 if (fd < 0)
1558 return EGL_FALSE;
1559
1560 data_map = mmap(NULL, size_map, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
1561 if (data_map == MAP_FAILED) {
1562 close(fd);
1563 return EGL_FALSE;
1564 }
1565
1566 /* Share it in a wl_buffer */
1567 pool = wl_shm_create_pool(dri2_dpy->wl_shm, fd, size_map);
1568 wl_proxy_set_queue((struct wl_proxy *)pool, dri2_surf->wl_queue);
1569 *buffer = wl_shm_pool_create_buffer(pool, 0, w, h, stride, format);
1570 wl_shm_pool_destroy(pool);
1571 close(fd);
1572
1573 *data = data_map;
1574 *size = size_map;
1575 return EGL_TRUE;
1576 }
1577
1578 static int
1579 swrast_update_buffers(struct dri2_egl_surface *dri2_surf)
1580 {
1581 struct dri2_egl_display *dri2_dpy =
1582 dri2_egl_display(dri2_surf->base.Resource.Display);
1583
1584 /* we need to do the following operations only once per frame */
1585 if (dri2_surf->back)
1586 return 0;
1587
1588 if (dri2_surf->base.Width != dri2_surf->wl_win->width ||
1589 dri2_surf->base.Height != dri2_surf->wl_win->height) {
1590
1591 dri2_wl_release_buffers(dri2_surf);
1592
1593 dri2_surf->base.Width = dri2_surf->wl_win->width;
1594 dri2_surf->base.Height = dri2_surf->wl_win->height;
1595 dri2_surf->dx = dri2_surf->wl_win->dx;
1596 dri2_surf->dy = dri2_surf->wl_win->dy;
1597 dri2_surf->current = NULL;
1598 }
1599
1600 /* find back buffer */
1601
1602 /* There might be a buffer release already queued that wasn't processed */
1603 wl_display_dispatch_queue_pending(dri2_dpy->wl_dpy, dri2_surf->wl_queue);
1604
1605 /* try get free buffer already created */
1606 for (int i = 0; i < ARRAY_SIZE(dri2_surf->color_buffers); i++) {
1607 if (!dri2_surf->color_buffers[i].locked &&
1608 dri2_surf->color_buffers[i].wl_buffer) {
1609 dri2_surf->back = &dri2_surf->color_buffers[i];
1610 break;
1611 }
1612 }
1613
1614 /* else choose any another free location */
1615 if (!dri2_surf->back) {
1616 for (int i = 0; i < ARRAY_SIZE(dri2_surf->color_buffers); i++) {
1617 if (!dri2_surf->color_buffers[i].locked) {
1618 dri2_surf->back = &dri2_surf->color_buffers[i];
1619 if (!dri2_wl_swrast_allocate_buffer(dri2_surf,
1620 dri2_surf->format,
1621 dri2_surf->base.Width,
1622 dri2_surf->base.Height,
1623 &dri2_surf->back->data,
1624 &dri2_surf->back->data_size,
1625 &dri2_surf->back->wl_buffer)) {
1626 _eglError(EGL_BAD_ALLOC, "failed to allocate color buffer");
1627 return -1;
1628 }
1629 wl_buffer_add_listener(dri2_surf->back->wl_buffer,
1630 &wl_buffer_listener, dri2_surf);
1631 break;
1632 }
1633 }
1634 }
1635
1636 if (!dri2_surf->back) {
1637 _eglError(EGL_BAD_ALLOC, "failed to find free buffer");
1638 return -1;
1639 }
1640
1641 dri2_surf->back->locked = true;
1642
1643 /* If we have an extra unlocked buffer at this point, we had to do triple
1644 * buffering for a while, but now can go back to just double buffering.
1645 * That means we can free any unlocked buffer now. */
1646 for (int i = 0; i < ARRAY_SIZE(dri2_surf->color_buffers); i++) {
1647 if (!dri2_surf->color_buffers[i].locked &&
1648 dri2_surf->color_buffers[i].wl_buffer) {
1649 wl_buffer_destroy(dri2_surf->color_buffers[i].wl_buffer);
1650 munmap(dri2_surf->color_buffers[i].data,
1651 dri2_surf->color_buffers[i].data_size);
1652 dri2_surf->color_buffers[i].wl_buffer = NULL;
1653 dri2_surf->color_buffers[i].data = NULL;
1654 }
1655 }
1656
1657 return 0;
1658 }
1659
1660 static void*
1661 dri2_wl_swrast_get_frontbuffer_data(struct dri2_egl_surface *dri2_surf)
1662 {
1663 /* if there has been a resize: */
1664 if (!dri2_surf->current)
1665 return NULL;
1666
1667 return dri2_surf->current->data;
1668 }
1669
1670 static void*
1671 dri2_wl_swrast_get_backbuffer_data(struct dri2_egl_surface *dri2_surf)
1672 {
1673 assert(dri2_surf->back);
1674 return dri2_surf->back->data;
1675 }
1676
1677 static void
1678 dri2_wl_swrast_commit_backbuffer(struct dri2_egl_surface *dri2_surf)
1679 {
1680 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dri2_surf->base.Resource.Display);
1681
1682 while (dri2_surf->throttle_callback != NULL)
1683 if (wl_display_dispatch_queue(dri2_dpy->wl_dpy,
1684 dri2_surf->wl_queue) == -1)
1685 return;
1686
1687 if (dri2_surf->base.SwapInterval > 0) {
1688 dri2_surf->throttle_callback =
1689 wl_surface_frame(dri2_surf->wl_surface_wrapper);
1690 wl_callback_add_listener(dri2_surf->throttle_callback,
1691 &throttle_listener, dri2_surf);
1692 }
1693
1694 dri2_surf->current = dri2_surf->back;
1695 dri2_surf->back = NULL;
1696
1697 wl_surface_attach(dri2_surf->wl_surface_wrapper,
1698 dri2_surf->current->wl_buffer,
1699 dri2_surf->dx, dri2_surf->dy);
1700
1701 dri2_surf->wl_win->attached_width = dri2_surf->base.Width;
1702 dri2_surf->wl_win->attached_height = dri2_surf->base.Height;
1703 /* reset resize growing parameters */
1704 dri2_surf->dx = 0;
1705 dri2_surf->dy = 0;
1706
1707 wl_surface_damage(dri2_surf->wl_surface_wrapper,
1708 0, 0, INT32_MAX, INT32_MAX);
1709 wl_surface_commit(dri2_surf->wl_surface_wrapper);
1710
1711 /* If we're not waiting for a frame callback then we'll at least throttle
1712 * to a sync callback so that we always give a chance for the compositor to
1713 * handle the commit and send a release event before checking for a free
1714 * buffer */
1715 if (dri2_surf->throttle_callback == NULL) {
1716 dri2_surf->throttle_callback = wl_display_sync(dri2_dpy->wl_dpy_wrapper);
1717 wl_callback_add_listener(dri2_surf->throttle_callback,
1718 &throttle_listener, dri2_surf);
1719 }
1720
1721 wl_display_flush(dri2_dpy->wl_dpy);
1722 }
1723
1724 static void
1725 dri2_wl_swrast_get_drawable_info(__DRIdrawable * draw,
1726 int *x, int *y, int *w, int *h,
1727 void *loaderPrivate)
1728 {
1729 struct dri2_egl_surface *dri2_surf = loaderPrivate;
1730
1731 (void) swrast_update_buffers(dri2_surf);
1732 *x = 0;
1733 *y = 0;
1734 *w = dri2_surf->base.Width;
1735 *h = dri2_surf->base.Height;
1736 }
1737
1738 static void
1739 dri2_wl_swrast_get_image(__DRIdrawable * read,
1740 int x, int y, int w, int h,
1741 char *data, void *loaderPrivate)
1742 {
1743 struct dri2_egl_surface *dri2_surf = loaderPrivate;
1744 int copy_width = dri2_wl_swrast_get_stride_for_format(dri2_surf->format, w);
1745 int x_offset = dri2_wl_swrast_get_stride_for_format(dri2_surf->format, x);
1746 int src_stride = dri2_wl_swrast_get_stride_for_format(dri2_surf->format, dri2_surf->base.Width);
1747 int dst_stride = copy_width;
1748 char *src, *dst;
1749
1750 src = dri2_wl_swrast_get_frontbuffer_data(dri2_surf);
1751 if (!src) {
1752 memset(data, 0, copy_width * h);
1753 return;
1754 }
1755
1756 assert(data != src);
1757 assert(copy_width <= src_stride);
1758
1759 src += x_offset;
1760 src += y * src_stride;
1761 dst = data;
1762
1763 if (copy_width > src_stride-x_offset)
1764 copy_width = src_stride-x_offset;
1765 if (h > dri2_surf->base.Height-y)
1766 h = dri2_surf->base.Height-y;
1767
1768 for (; h>0; h--) {
1769 memcpy(dst, src, copy_width);
1770 src += src_stride;
1771 dst += dst_stride;
1772 }
1773 }
1774
1775 static void
1776 dri2_wl_swrast_put_image2(__DRIdrawable * draw, int op,
1777 int x, int y, int w, int h, int stride,
1778 char *data, void *loaderPrivate)
1779 {
1780 struct dri2_egl_surface *dri2_surf = loaderPrivate;
1781 int copy_width = dri2_wl_swrast_get_stride_for_format(dri2_surf->format, w);
1782 int dst_stride = dri2_wl_swrast_get_stride_for_format(dri2_surf->format, dri2_surf->base.Width);
1783 int x_offset = dri2_wl_swrast_get_stride_for_format(dri2_surf->format, x);
1784 char *src, *dst;
1785
1786 assert(copy_width <= stride);
1787
1788 (void) swrast_update_buffers(dri2_surf);
1789 dst = dri2_wl_swrast_get_backbuffer_data(dri2_surf);
1790
1791 /* partial copy, copy old content */
1792 if (copy_width < dst_stride)
1793 dri2_wl_swrast_get_image(draw, 0, 0,
1794 dri2_surf->base.Width, dri2_surf->base.Height,
1795 dst, loaderPrivate);
1796
1797 dst += x_offset;
1798 dst += y * dst_stride;
1799
1800 src = data;
1801
1802 /* drivers expect we do these checks (and some rely on it) */
1803 if (copy_width > dst_stride-x_offset)
1804 copy_width = dst_stride-x_offset;
1805 if (h > dri2_surf->base.Height-y)
1806 h = dri2_surf->base.Height-y;
1807
1808 for (; h>0; h--) {
1809 memcpy(dst, src, copy_width);
1810 src += stride;
1811 dst += dst_stride;
1812 }
1813 dri2_wl_swrast_commit_backbuffer(dri2_surf);
1814 }
1815
1816 static void
1817 dri2_wl_swrast_put_image(__DRIdrawable * draw, int op,
1818 int x, int y, int w, int h,
1819 char *data, void *loaderPrivate)
1820 {
1821 struct dri2_egl_surface *dri2_surf = loaderPrivate;
1822 int stride;
1823
1824 stride = dri2_wl_swrast_get_stride_for_format(dri2_surf->format, w);
1825 dri2_wl_swrast_put_image2(draw, op, x, y, w, h,
1826 stride, data, loaderPrivate);
1827 }
1828
1829 static EGLBoolean
1830 dri2_wl_swrast_swap_buffers(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *draw)
1831 {
1832 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1833 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(draw);
1834
1835 dri2_dpy->core->swapBuffers(dri2_surf->dri_drawable);
1836 return EGL_TRUE;
1837 }
1838
1839 static void
1840 shm_handle_format(void *data, struct wl_shm *shm, uint32_t format)
1841 {
1842 struct dri2_egl_display *dri2_dpy = data;
1843
1844 switch (format) {
1845 case WL_SHM_FORMAT_ARGB8888:
1846 dri2_dpy->formats |= HAS_ARGB8888;
1847 break;
1848 case WL_SHM_FORMAT_XRGB8888:
1849 dri2_dpy->formats |= HAS_XRGB8888;
1850 break;
1851 case WL_SHM_FORMAT_RGB565:
1852 dri2_dpy->formats |= HAS_RGB565;
1853 break;
1854 }
1855 }
1856
1857 static const struct wl_shm_listener shm_listener = {
1858 .format = shm_handle_format
1859 };
1860
1861 static void
1862 registry_handle_global_swrast(void *data, struct wl_registry *registry,
1863 uint32_t name, const char *interface,
1864 uint32_t version)
1865 {
1866 struct dri2_egl_display *dri2_dpy = data;
1867
1868 if (strcmp(interface, "wl_shm") == 0) {
1869 dri2_dpy->wl_shm =
1870 wl_registry_bind(registry, name, &wl_shm_interface, 1);
1871 wl_shm_add_listener(dri2_dpy->wl_shm, &shm_listener, dri2_dpy);
1872 }
1873 }
1874
1875 static const struct wl_registry_listener registry_listener_swrast = {
1876 .global = registry_handle_global_swrast,
1877 .global_remove = registry_handle_global_remove
1878 };
1879
1880 static const struct dri2_egl_display_vtbl dri2_wl_swrast_display_vtbl = {
1881 .authenticate = NULL,
1882 .create_window_surface = dri2_wl_create_window_surface,
1883 .create_pixmap_surface = dri2_wl_create_pixmap_surface,
1884 .create_pbuffer_surface = dri2_fallback_create_pbuffer_surface,
1885 .destroy_surface = dri2_wl_destroy_surface,
1886 .create_image = dri2_create_image_khr,
1887 .swap_buffers = dri2_wl_swrast_swap_buffers,
1888 .swap_buffers_with_damage = dri2_fallback_swap_buffers_with_damage,
1889 .swap_buffers_region = dri2_fallback_swap_buffers_region,
1890 .post_sub_buffer = dri2_fallback_post_sub_buffer,
1891 .copy_buffers = dri2_fallback_copy_buffers,
1892 .query_buffer_age = dri2_fallback_query_buffer_age,
1893 .create_wayland_buffer_from_image = dri2_fallback_create_wayland_buffer_from_image,
1894 .get_sync_values = dri2_fallback_get_sync_values,
1895 .get_dri_drawable = dri2_surface_get_dri_drawable,
1896 };
1897
1898 static const __DRIswrastLoaderExtension swrast_loader_extension = {
1899 .base = { __DRI_SWRAST_LOADER, 2 },
1900
1901 .getDrawableInfo = dri2_wl_swrast_get_drawable_info,
1902 .putImage = dri2_wl_swrast_put_image,
1903 .getImage = dri2_wl_swrast_get_image,
1904 .putImage2 = dri2_wl_swrast_put_image2,
1905 };
1906
1907 static const __DRIextension *swrast_loader_extensions[] = {
1908 &swrast_loader_extension.base,
1909 &image_lookup_extension.base,
1910 NULL,
1911 };
1912
1913 static EGLBoolean
1914 dri2_initialize_wayland_swrast(_EGLDriver *drv, _EGLDisplay *disp)
1915 {
1916 struct dri2_egl_display *dri2_dpy;
1917
1918 loader_set_logger(_eglLog);
1919
1920 dri2_dpy = calloc(1, sizeof *dri2_dpy);
1921 if (!dri2_dpy)
1922 return _eglError(EGL_BAD_ALLOC, "eglInitialize");
1923
1924 dri2_dpy->fd = -1;
1925 disp->DriverData = (void *) dri2_dpy;
1926 if (disp->PlatformDisplay == NULL) {
1927 dri2_dpy->wl_dpy = wl_display_connect(NULL);
1928 if (dri2_dpy->wl_dpy == NULL)
1929 goto cleanup;
1930 dri2_dpy->own_device = true;
1931 } else {
1932 dri2_dpy->wl_dpy = disp->PlatformDisplay;
1933 }
1934
1935 dri2_dpy->wl_queue = wl_display_create_queue(dri2_dpy->wl_dpy);
1936
1937 dri2_dpy->wl_dpy_wrapper = wl_proxy_create_wrapper(dri2_dpy->wl_dpy);
1938 if (dri2_dpy->wl_dpy_wrapper == NULL)
1939 goto cleanup;
1940
1941 wl_proxy_set_queue((struct wl_proxy *) dri2_dpy->wl_dpy_wrapper,
1942 dri2_dpy->wl_queue);
1943
1944 if (dri2_dpy->own_device)
1945 wl_display_dispatch_pending(dri2_dpy->wl_dpy);
1946
1947 dri2_dpy->wl_registry = wl_display_get_registry(dri2_dpy->wl_dpy_wrapper);
1948 wl_registry_add_listener(dri2_dpy->wl_registry,
1949 &registry_listener_swrast, dri2_dpy);
1950
1951 if (roundtrip(dri2_dpy) < 0 || dri2_dpy->wl_shm == NULL)
1952 goto cleanup;
1953
1954 if (roundtrip(dri2_dpy) < 0 || dri2_dpy->formats == 0)
1955 goto cleanup;
1956
1957 dri2_dpy->driver_name = strdup("swrast");
1958 if (!dri2_load_driver_swrast(disp))
1959 goto cleanup;
1960
1961 dri2_dpy->loader_extensions = swrast_loader_extensions;
1962
1963 if (!dri2_create_screen(disp))
1964 goto cleanup;
1965
1966 if (!dri2_setup_extensions(disp))
1967 goto cleanup;
1968
1969 dri2_setup_screen(disp);
1970
1971 dri2_wl_setup_swap_interval(dri2_dpy);
1972
1973 if (!dri2_wl_add_configs_for_visuals(drv, disp)) {
1974 _eglError(EGL_NOT_INITIALIZED, "DRI2: failed to add configs");
1975 goto cleanup;
1976 }
1977
1978 /* Fill vtbl last to prevent accidentally calling virtual function during
1979 * initialization.
1980 */
1981 dri2_dpy->vtbl = &dri2_wl_swrast_display_vtbl;
1982
1983 return EGL_TRUE;
1984
1985 cleanup:
1986 dri2_display_destroy(disp);
1987 return EGL_FALSE;
1988 }
1989
1990 EGLBoolean
1991 dri2_initialize_wayland(_EGLDriver *drv, _EGLDisplay *disp)
1992 {
1993 EGLBoolean initialized = EGL_TRUE;
1994
1995 int hw_accel = (getenv("LIBGL_ALWAYS_SOFTWARE") == NULL);
1996
1997 if (hw_accel) {
1998 if (!dri2_initialize_wayland_drm(drv, disp)) {
1999 initialized = dri2_initialize_wayland_swrast(drv, disp);
2000 }
2001 } else {
2002 initialized = dri2_initialize_wayland_swrast(drv, disp);
2003 }
2004
2005 return initialized;
2006
2007 }