1 /* GStreamer Wayland video sink
3 * Copyright (C) 2011 Intel Corporation
4 * Copyright (C) 2011 Sreerenj Balachandran <sreerenj.balachandran@intel.com>
5 * Copyright (C) 2014 Collabora Ltd.
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Library General Public
9 * License as published by the Free Software Foundation; either
10 * version 2 of the License, or (at your option) any later version.
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Library General Public License for more details.
17 * You should have received a copy of the GNU Library General Public
18 * License along with this library; if not, write to the Free
19 * Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
20 * Boston, MA 02110-1301 USA.
28 #include "wlshmallocator.h"
31 GST_DEBUG_CATEGORY_EXTERN (gstwayland_debug);
32 #define GST_CAT_DEFAULT gstwayland_debug
40 static guint signals[LAST_SIGNAL] = { 0 };
42 G_DEFINE_TYPE (GstWlWindow, gst_wl_window, G_TYPE_OBJECT);
44 static void gst_wl_window_finalize (GObject * gobject);
47 handle_xdg_toplevel_close (void *data, struct xdg_toplevel *xdg_toplevel)
49 GstWlWindow *window = data;
51 GST_DEBUG ("XDG toplevel got a \"close\" event.");
52 g_signal_emit (window, signals[CLOSED], 0);
56 handle_xdg_toplevel_configure (void *data, struct xdg_toplevel *xdg_toplevel,
57 int32_t width, int32_t height, struct wl_array *states)
59 GstWlWindow *window = data;
60 const uint32_t *state;
62 GST_DEBUG ("XDG toplevel got a \"configure\" event, [ %d, %d ].",
65 wl_array_for_each (state, states) {
67 case XDG_TOPLEVEL_STATE_FULLSCREEN:
68 case XDG_TOPLEVEL_STATE_MAXIMIZED:
69 case XDG_TOPLEVEL_STATE_RESIZING:
70 case XDG_TOPLEVEL_STATE_ACTIVATED:
75 if (width <= 0 || height <= 0)
78 gst_wl_window_set_render_rectangle (window, 0, 0, width, height);
81 static const struct xdg_toplevel_listener xdg_toplevel_listener = {
82 handle_xdg_toplevel_configure,
83 handle_xdg_toplevel_close,
87 handle_xdg_surface_configure (void *data, struct xdg_surface *xdg_surface,
90 GstWlWindow *window = data;
91 xdg_surface_ack_configure (xdg_surface, serial);
93 g_mutex_lock (&window->configure_mutex);
94 window->configured = TRUE;
95 g_cond_signal (&window->configure_cond);
96 g_mutex_unlock (&window->configure_mutex);
99 static const struct xdg_surface_listener xdg_surface_listener = {
100 handle_xdg_surface_configure,
104 handle_ping (void *data, struct wl_shell_surface *wl_shell_surface,
107 wl_shell_surface_pong (wl_shell_surface, serial);
111 handle_configure (void *data, struct wl_shell_surface *wl_shell_surface,
112 uint32_t edges, int32_t width, int32_t height)
114 GstWlWindow *window = data;
116 GST_DEBUG ("Windows configure: edges %x, width = %i, height %i", edges,
119 if (width == 0 || height == 0)
122 gst_wl_window_set_render_rectangle (window, 0, 0, width, height);
126 handle_popup_done (void *data, struct wl_shell_surface *wl_shell_surface)
128 GST_DEBUG ("Window popup done.");
131 static const struct wl_shell_surface_listener wl_shell_surface_listener = {
138 gst_wl_window_class_init (GstWlWindowClass * klass)
140 GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
141 gobject_class->finalize = gst_wl_window_finalize;
143 signals[CLOSED] = g_signal_new ("closed", G_TYPE_FROM_CLASS (gobject_class),
144 G_SIGNAL_RUN_LAST, 0, NULL, NULL, NULL, G_TYPE_NONE, 0);
148 gst_wl_window_init (GstWlWindow * self)
150 self->configured = TRUE;
151 g_cond_init (&self->configure_cond);
152 g_mutex_init (&self->configure_mutex);
156 gst_wl_window_finalize (GObject * gobject)
158 GstWlWindow *self = GST_WL_WINDOW (gobject);
160 if (self->wl_shell_surface)
161 wl_shell_surface_destroy (self->wl_shell_surface);
163 if (self->xdg_toplevel)
164 xdg_toplevel_destroy (self->xdg_toplevel);
165 if (self->xdg_surface)
166 xdg_surface_destroy (self->xdg_surface);
168 if (self->video_viewport)
169 wp_viewport_destroy (self->video_viewport);
171 wl_proxy_wrapper_destroy (self->video_surface_wrapper);
172 wl_subsurface_destroy (self->video_subsurface);
173 wl_surface_destroy (self->video_surface);
175 if (self->area_subsurface)
176 wl_subsurface_destroy (self->area_subsurface);
178 if (self->area_viewport)
179 wp_viewport_destroy (self->area_viewport);
181 wl_proxy_wrapper_destroy (self->area_surface_wrapper);
182 wl_surface_destroy (self->area_surface);
184 g_clear_object (&self->display);
186 G_OBJECT_CLASS (gst_wl_window_parent_class)->finalize (gobject);
190 gst_wl_window_new_internal (GstWlDisplay * display, GMutex * render_lock)
193 struct wl_region *region;
195 window = g_object_new (GST_TYPE_WL_WINDOW, NULL);
196 window->display = g_object_ref (display);
197 window->render_lock = render_lock;
198 g_cond_init (&window->configure_cond);
200 window->area_surface = wl_compositor_create_surface (display->compositor);
201 window->video_surface = wl_compositor_create_surface (display->compositor);
203 window->area_surface_wrapper = wl_proxy_create_wrapper (window->area_surface);
204 window->video_surface_wrapper =
205 wl_proxy_create_wrapper (window->video_surface);
207 wl_proxy_set_queue ((struct wl_proxy *) window->area_surface_wrapper,
209 wl_proxy_set_queue ((struct wl_proxy *) window->video_surface_wrapper,
212 /* embed video_surface in area_surface */
213 window->video_subsurface =
214 wl_subcompositor_get_subsurface (display->subcompositor,
215 window->video_surface, window->area_surface);
216 wl_subsurface_set_desync (window->video_subsurface);
218 if (display->viewporter) {
219 window->area_viewport = wp_viewporter_get_viewport (display->viewporter,
220 window->area_surface);
221 window->video_viewport = wp_viewporter_get_viewport (display->viewporter,
222 window->video_surface);
225 /* do not accept input */
226 region = wl_compositor_create_region (display->compositor);
227 wl_surface_set_input_region (window->area_surface, region);
228 wl_region_destroy (region);
230 region = wl_compositor_create_region (display->compositor);
231 wl_surface_set_input_region (window->video_surface, region);
232 wl_region_destroy (region);
238 gst_wl_window_ensure_fullscreen (GstWlWindow * window, gboolean fullscreen)
243 if (window->display->xdg_wm_base) {
245 xdg_toplevel_set_fullscreen (window->xdg_toplevel, NULL);
247 xdg_toplevel_unset_fullscreen (window->xdg_toplevel);
250 wl_shell_surface_set_fullscreen (window->wl_shell_surface,
251 WL_SHELL_SURFACE_FULLSCREEN_METHOD_SCALE, 0, NULL);
253 wl_shell_surface_set_toplevel (window->wl_shell_surface);
258 gst_wl_window_new_toplevel (GstWlDisplay * display, const GstVideoInfo * info,
259 gboolean fullscreen, GMutex * render_lock)
263 window = gst_wl_window_new_internal (display, render_lock);
265 /* Check which protocol we will use (in order of preference) */
266 if (display->xdg_wm_base) {
269 /* First create the XDG surface */
270 window->xdg_surface = xdg_wm_base_get_xdg_surface (display->xdg_wm_base,
271 window->area_surface);
272 if (!window->xdg_surface) {
273 GST_ERROR ("Unable to get xdg_surface");
276 xdg_surface_add_listener (window->xdg_surface, &xdg_surface_listener,
279 /* Then the toplevel */
280 window->xdg_toplevel = xdg_surface_get_toplevel (window->xdg_surface);
281 if (!window->xdg_toplevel) {
282 GST_ERROR ("Unable to get xdg_toplevel");
285 xdg_toplevel_add_listener (window->xdg_toplevel,
286 &xdg_toplevel_listener, window);
288 gst_wl_window_ensure_fullscreen (window, fullscreen);
290 /* Finally, commit the xdg_surface state as toplevel */
291 window->configured = FALSE;
292 wl_surface_commit (window->area_surface);
293 wl_display_flush (display->display);
295 g_mutex_lock (&window->configure_mutex);
296 timeout = g_get_monotonic_time () + 100 * G_TIME_SPAN_MILLISECOND;
297 while (!window->configured) {
298 if (!g_cond_wait_until (&window->configure_cond, &window->configure_mutex,
300 GST_WARNING ("The compositor did not send configure event.");
304 g_mutex_unlock (&window->configure_mutex);
305 } else if (display->wl_shell) {
307 window->wl_shell_surface = wl_shell_get_shell_surface (display->wl_shell,
308 window->area_surface);
309 if (!window->wl_shell_surface) {
310 GST_ERROR ("Unable to get wl_shell_surface");
314 wl_shell_surface_add_listener (window->wl_shell_surface,
315 &wl_shell_surface_listener, window);
316 gst_wl_window_ensure_fullscreen (window, fullscreen);
317 } else if (display->fullscreen_shell) {
318 zwp_fullscreen_shell_v1_present_surface (display->fullscreen_shell,
319 window->area_surface, ZWP_FULLSCREEN_SHELL_V1_PRESENT_METHOD_ZOOM,
322 GST_ERROR ("Unable to use either wl_shell, xdg_wm_base or "
323 "zwp_fullscreen_shell.");
327 /* render_rectangle is already set via toplevel_configure in
328 * xdg_shell fullscreen mode */
329 if (!(display->xdg_wm_base && fullscreen)) {
330 /* set the initial size to be the same as the reported video size */
332 gst_util_uint64_scale_int_round (info->width, info->par_n, info->par_d);
333 gst_wl_window_set_render_rectangle (window, 0, 0, width, info->height);
339 g_object_unref (window);
344 gst_wl_window_new_in_surface (GstWlDisplay * display,
345 struct wl_surface * parent, GMutex * render_lock)
348 window = gst_wl_window_new_internal (display, render_lock);
350 /* embed in parent */
351 window->area_subsurface =
352 wl_subcompositor_get_subsurface (display->subcompositor,
353 window->area_surface, parent);
354 wl_subsurface_set_desync (window->area_subsurface);
356 wl_surface_commit (parent);
362 gst_wl_window_get_display (GstWlWindow * window)
364 g_return_val_if_fail (window != NULL, NULL);
366 return g_object_ref (window->display);
370 gst_wl_window_get_wl_surface (GstWlWindow * window)
372 g_return_val_if_fail (window != NULL, NULL);
374 return window->video_surface_wrapper;
378 gst_wl_window_is_toplevel (GstWlWindow * window)
380 g_return_val_if_fail (window != NULL, FALSE);
382 if (window->display->xdg_wm_base)
383 return (window->xdg_toplevel != NULL);
385 return (window->wl_shell_surface != NULL);
389 gst_wl_window_resize_video_surface (GstWlWindow * window, gboolean commit)
391 GstVideoRectangle src = { 0, };
392 GstVideoRectangle dst = { 0, };
393 GstVideoRectangle res;
395 /* center the video_subsurface inside area_subsurface */
396 src.w = window->video_width;
397 src.h = window->video_height;
398 dst.w = window->render_rectangle.w;
399 dst.h = window->render_rectangle.h;
401 if (window->video_viewport) {
402 gst_video_sink_center_rect (src, dst, &res, TRUE);
403 wp_viewport_set_destination (window->video_viewport, res.w, res.h);
405 gst_video_sink_center_rect (src, dst, &res, FALSE);
408 wl_subsurface_set_position (window->video_subsurface, res.x, res.y);
411 wl_surface_damage (window->video_surface_wrapper, 0, 0, res.w, res.h);
412 wl_surface_commit (window->video_surface_wrapper);
415 if (gst_wl_window_is_toplevel (window)) {
416 struct wl_region *region;
418 region = wl_compositor_create_region (window->display->compositor);
419 wl_region_add (region, 0, 0, window->render_rectangle.w,
420 window->render_rectangle.h);
421 wl_surface_set_input_region (window->area_surface, region);
422 wl_region_destroy (region);
425 /* this is saved for use in wl_surface_damage */
426 window->video_rectangle = res;
430 gst_wl_window_set_opaque (GstWlWindow * window, const GstVideoInfo * info)
432 struct wl_region *region;
434 /* Set area opaque */
435 region = wl_compositor_create_region (window->display->compositor);
436 wl_region_add (region, 0, 0, window->render_rectangle.w,
437 window->render_rectangle.h);
438 wl_surface_set_opaque_region (window->area_surface, region);
439 wl_region_destroy (region);
441 if (!GST_VIDEO_INFO_HAS_ALPHA (info)) {
442 /* Set video opaque */
443 region = wl_compositor_create_region (window->display->compositor);
444 wl_region_add (region, 0, 0, window->render_rectangle.w,
445 window->render_rectangle.h);
446 wl_surface_set_opaque_region (window->video_surface, region);
447 wl_region_destroy (region);
452 gst_wl_window_render (GstWlWindow * window, GstWlBuffer * buffer,
453 const GstVideoInfo * info)
455 if (G_UNLIKELY (info)) {
456 window->video_width =
457 gst_util_uint64_scale_int_round (info->width, info->par_n, info->par_d);
458 window->video_height = info->height;
460 wl_subsurface_set_sync (window->video_subsurface);
461 gst_wl_window_resize_video_surface (window, FALSE);
462 gst_wl_window_set_opaque (window, info);
465 if (G_LIKELY (buffer)) {
466 gst_wl_buffer_attach (buffer, window->video_surface_wrapper);
467 wl_surface_damage (window->video_surface_wrapper, 0, 0,
468 window->video_rectangle.w, window->video_rectangle.h);
469 wl_surface_commit (window->video_surface_wrapper);
471 /* clear both video and parent surfaces */
472 wl_surface_attach (window->video_surface_wrapper, NULL, 0, 0);
473 wl_surface_commit (window->video_surface_wrapper);
474 wl_surface_attach (window->area_surface_wrapper, NULL, 0, 0);
475 wl_surface_commit (window->area_surface_wrapper);
478 if (G_UNLIKELY (info)) {
479 /* commit also the parent (area_surface) in order to change
480 * the position of the video_subsurface */
481 wl_surface_damage (window->area_surface_wrapper, 0, 0,
482 window->render_rectangle.w, window->render_rectangle.h);
483 wl_surface_commit (window->area_surface_wrapper);
484 wl_subsurface_set_desync (window->video_subsurface);
487 wl_display_flush (window->display->display);
490 /* Update the buffer used to draw black borders. When we have viewporter
491 * support, this is a scaled up 1x1 image, and without we need an black image
492 * the size of the rendering areay. */
494 gst_wl_window_update_borders (GstWlWindow * window)
496 GstVideoFormat format;
500 struct wl_buffer *wlbuf;
504 if (window->no_border_update)
507 if (window->display->viewporter) {
509 window->no_border_update = TRUE;
511 width = window->render_rectangle.w;
512 height = window->render_rectangle.h;
515 /* we want WL_SHM_FORMAT_XRGB8888 */
516 format = GST_VIDEO_FORMAT_BGRx;
518 /* draw the area_subsurface */
519 gst_video_info_set_format (&info, format, width, height);
521 alloc = gst_wl_shm_allocator_get ();
523 buf = gst_buffer_new_allocate (alloc, info.size, NULL);
524 gst_buffer_memset (buf, 0, 0, info.size);
526 gst_wl_shm_memory_construct_wl_buffer (gst_buffer_peek_memory (buf, 0),
527 window->display, &info);
528 gwlbuf = gst_buffer_add_wl_buffer (buf, wlbuf, window->display);
529 gst_wl_buffer_attach (gwlbuf, window->area_surface_wrapper);
531 /* at this point, the GstWlBuffer keeps the buffer
532 * alive and will free it on wl_buffer::release */
533 gst_buffer_unref (buf);
534 g_object_unref (alloc);
538 gst_wl_window_set_render_rectangle (GstWlWindow * window, gint x, gint y,
541 g_return_if_fail (window != NULL);
543 window->render_rectangle.x = x;
544 window->render_rectangle.y = y;
545 window->render_rectangle.w = w;
546 window->render_rectangle.h = h;
548 /* position the area inside the parent - needs a parent commit to apply */
549 if (window->area_subsurface)
550 wl_subsurface_set_position (window->area_subsurface, x, y);
552 /* change the size of the area */
553 if (window->area_viewport)
554 wp_viewport_set_destination (window->area_viewport, w, h);
556 gst_wl_window_update_borders (window);
558 if (!window->configured)
561 if (window->video_width != 0) {
562 wl_subsurface_set_sync (window->video_subsurface);
563 gst_wl_window_resize_video_surface (window, TRUE);
566 wl_surface_damage (window->area_surface_wrapper, 0, 0, w, h);
567 wl_surface_commit (window->area_surface_wrapper);
569 if (window->video_width != 0)
570 wl_subsurface_set_desync (window->video_subsurface);