gstreamer/ext/wayland/wlwindow.c
George Kiagiadakis e5334a1f8b waylandsink/wlwindow: do not commit a resize when it happens due to a video info change
1) We know that gst_wayland_sink_render() will commit the surface
   in the same thread a little later, as gst_wl_window_set_video_info()
   is always called from there, so we can save the compositor from
   some extra calculations.
2) We should not commit a resize with the new video info while we are still
   showing the buffer of the previous video, with the old caps, as that
   would probably be a visible resize glitch.
2014-06-17 13:51:30 +02:00

237 lines
6.1 KiB
C

/* GStreamer Wayland video sink
*
* Copyright (C) 2011 Intel Corporation
* Copyright (C) 2011 Sreerenj Balachandran <sreerenj.balachandran@intel.com>
* Copyright (C) 2014 Collabora Ltd.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "wlwindow.h"
GST_DEBUG_CATEGORY_EXTERN (gstwayland_debug);
#define GST_CAT_DEFAULT gstwayland_debug
G_DEFINE_TYPE (GstWlWindow, gst_wl_window, G_TYPE_OBJECT);
static void gst_wl_window_finalize (GObject * gobject);
static void
handle_ping (void *data, struct wl_shell_surface *shell_surface,
uint32_t serial)
{
wl_shell_surface_pong (shell_surface, serial);
}
static void
handle_configure (void *data, struct wl_shell_surface *shell_surface,
uint32_t edges, int32_t width, int32_t height)
{
}
static void
handle_popup_done (void *data, struct wl_shell_surface *shell_surface)
{
}
static const struct wl_shell_surface_listener shell_surface_listener = {
handle_ping,
handle_configure,
handle_popup_done
};
static void
gst_wl_window_class_init (GstWlWindowClass * klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
gobject_class->finalize = gst_wl_window_finalize;
}
static void
gst_wl_window_init (GstWlWindow * self)
{
}
static void
gst_wl_window_finalize (GObject * gobject)
{
GstWlWindow *self = GST_WL_WINDOW (gobject);
if (self->shell_surface) {
wl_shell_surface_destroy (self->shell_surface);
}
if (self->subsurface) {
wl_subsurface_destroy (self->subsurface);
}
wl_viewport_destroy (self->viewport);
wl_surface_destroy (self->surface);
g_clear_object (&self->display);
G_OBJECT_CLASS (gst_wl_window_parent_class)->finalize (gobject);
}
static GstWlWindow *
gst_wl_window_new_internal (GstWlDisplay * display, struct wl_surface *surface)
{
GstWlWindow *window;
struct wl_region *region;
g_return_val_if_fail (surface != NULL, NULL);
window = g_object_new (GST_TYPE_WL_WINDOW, NULL);
window->display = g_object_ref (display);
window->surface = surface;
/* make sure the surface runs on our local queue */
wl_proxy_set_queue ((struct wl_proxy *) surface, display->queue);
window->viewport = wl_scaler_get_viewport (display->scaler, window->surface);
/* do not accept input */
region = wl_compositor_create_region (display->compositor);
wl_surface_set_input_region (surface, region);
wl_region_destroy (region);
return window;
}
GstWlWindow *
gst_wl_window_new_toplevel (GstWlDisplay * display, GstVideoInfo * video_info)
{
GstWlWindow *window;
window = gst_wl_window_new_internal (display,
wl_compositor_create_surface (display->compositor));
gst_wl_window_set_video_info (window, video_info);
gst_wl_window_set_render_rectangle (window, 0, 0, window->video_width,
window->video_height);
window->shell_surface = wl_shell_get_shell_surface (display->shell,
window->surface);
if (window->shell_surface) {
wl_shell_surface_add_listener (window->shell_surface,
&shell_surface_listener, window);
wl_shell_surface_set_toplevel (window->shell_surface);
} else {
GST_ERROR ("Unable to get wl_shell_surface");
g_object_unref (window);
return NULL;
}
return window;
}
GstWlWindow *
gst_wl_window_new_in_surface (GstWlDisplay * display,
struct wl_surface * parent)
{
GstWlWindow *window;
window = gst_wl_window_new_internal (display,
wl_compositor_create_surface (display->compositor));
window->subsurface = wl_subcompositor_get_subsurface (display->subcompositor,
window->surface, parent);
wl_subsurface_set_desync (window->subsurface);
return window;
}
GstWlDisplay *
gst_wl_window_get_display (GstWlWindow * window)
{
g_return_val_if_fail (window != NULL, NULL);
return g_object_ref (window->display);
}
struct wl_surface *
gst_wl_window_get_wl_surface (GstWlWindow * window)
{
g_return_val_if_fail (window != NULL, NULL);
return window->surface;
}
gboolean
gst_wl_window_is_toplevel (GstWlWindow * window)
{
g_return_val_if_fail (window != NULL, FALSE);
return (window->shell_surface != NULL);
}
static void
gst_wl_window_resize_internal (GstWlWindow * window, gboolean commit)
{
GstVideoRectangle src, res;
src.w = window->video_width;
src.h = window->video_height;
gst_video_sink_center_rect (src, window->render_rectangle, &res, TRUE);
if (window->subsurface)
wl_subsurface_set_position (window->subsurface,
window->render_rectangle.x + res.x, window->render_rectangle.y + res.y);
wl_viewport_set_destination (window->viewport, res.w, res.h);
if (commit) {
wl_surface_damage (window->surface, 0, 0, res.w, res.h);
wl_surface_commit (window->surface);
}
/* this is saved for use in wl_surface_damage */
window->surface_width = res.w;
window->surface_height = res.h;
}
void
gst_wl_window_set_video_info (GstWlWindow * window, GstVideoInfo * info)
{
g_return_if_fail (window != NULL);
window->video_width =
gst_util_uint64_scale_int_round (info->width, info->par_n, info->par_d);
window->video_height = info->height;
if (window->render_rectangle.w != 0)
gst_wl_window_resize_internal (window, FALSE);
}
void
gst_wl_window_set_render_rectangle (GstWlWindow * window, gint x, gint y,
gint w, gint h)
{
g_return_if_fail (window != NULL);
window->render_rectangle.x = x;
window->render_rectangle.y = y;
window->render_rectangle.w = w;
window->render_rectangle.h = h;
if (window->video_width != 0)
gst_wl_window_resize_internal (window, TRUE);
}