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waylandsink: set video surface opaque

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Unless the video format has an alpha component (ARGB, ...), set the
video_surface opaque.
In the usual case where the black area_surface has the same size as the
video_surface (eg: run gst-play-1.0 video.mp4), this makes the black
surface totally occluded which makes weston compositor's life easier
since it can ignore that surface.
Also unconditionally set the black area_surface opaque.

https://bugzilla.gnome.org/show_bug.cgi?id=778078
This commit is contained in:
Fabien Dessenne 2017-02-02 16:47:52 +01:00 committed by Nicolas Dufresne
parent a5933dc002
commit 57645056ad
1 changed files with 23 additions and 0 deletions
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23
ext/wayland/wlwindow.c
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@ -263,6 +263,28 @@ gst_wl_window_resize_video_surface (GstWlWindow * window, gboolean commit)
window->video_rectangle = res;
}
static void
gst_wl_window_set_opaque (GstWlWindow * window, const GstVideoInfo * info)
{
struct wl_region *region;
/* Set area opaque */
region = wl_compositor_create_region (window->display->compositor);
wl_region_add (region, 0, 0, window->render_rectangle.w,
window->render_rectangle.h);
wl_surface_set_opaque_region (window->area_surface, region);
wl_region_destroy (region);
if (!GST_VIDEO_INFO_HAS_ALPHA (info)) {
/* Set video opaque */
region = wl_compositor_create_region (window->display->compositor);
wl_region_add (region, 0, 0, window->render_rectangle.w,
window->render_rectangle.h);
wl_surface_set_opaque_region (window->video_surface, region);
wl_region_destroy (region);
}
}
void
gst_wl_window_render (GstWlWindow * window, GstWlBuffer * buffer,
const GstVideoInfo * info)
@ -274,6 +296,7 @@ gst_wl_window_render (GstWlWindow * window, GstWlBuffer * buffer,
wl_subsurface_set_sync (window->video_subsurface);
gst_wl_window_resize_video_surface (window, FALSE);
gst_wl_window_set_opaque (window, info);
}
if (G_LIKELY (buffer))