ext/wayland/wlwindow.h

/* GStreamer Wayland video sink
 *
 * 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.
 */

#ifndef __GST_WL_WINDOW_H__
#define __GST_WL_WINDOW_H__

#include "wldisplay.h"
#include "wlbuffer.h"
#include <gst/video/video.h>

G_BEGIN_DECLS

#define GST_TYPE_WL_WINDOW                  (gst_wl_window_get_type ())
#define GST_WL_WINDOW(obj)                  (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_WL_WINDOW, GstWlWindow))
#define GST_IS_WL_WINDOW(obj)               (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_WL_WINDOW))
#define GST_WL_WINDOW_CLASS(klass)          (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_WL_WINDOW, GstWlWindowClass))
#define GST_IS_WL_WINDOW_CLASS(klass)       (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_WL_WINDOW))
#define GST_WL_WINDOW_GET_CLASS(obj)        (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_WL_WINDOW, GstWlWindowClass))

typedef struct _GstWlWindow GstWlWindow;
typedef struct _GstWlWindowClass GstWlWindowClass;

struct _GstWlWindow
{
  GObject parent_instance;

  GMutex *render_lock;

  GstWlDisplay *display;
  struct wl_surface *area_surface;
  struct wl_subsurface *area_subsurface;
  struct wp_viewport *area_viewport;
  struct wl_surface *video_surface;
  struct wl_subsurface *video_subsurface;
  struct wp_viewport *video_viewport;
  struct wl_shell_surface *shell_surface;
  struct zwp_blending_v1 *blend_func;

  /* the size and position of the area_(sub)surface */
  GstVideoRectangle render_rectangle;

  /* the size and position of the video_subsurface */
  GstVideoRectangle video_rectangle;

  /* the size of the video in the buffers */
  gint video_width, video_height;

  /* the coordinate of video crop */
  gint src_x, src_y, src_width, src_height;

  /* video buffer scale */
  guint scale;

  /* fullscreen window size */
  gint fullscreen_width, fullscreen_height;

  /* this will be set when viewporter is available and black background has
   * already been set on the area_subsurface */
  gboolean no_border_update;

};

struct _GstWlWindowClass
{
  GObjectClass parent_class;
};

GType gst_wl_window_get_type (void);

GstWlWindow *gst_wl_window_new_toplevel (GstWlDisplay * display,
        const GstVideoInfo * info, GMutex * render_lock);
GstWlWindow *gst_wl_window_new_in_surface (GstWlDisplay * display,
        struct wl_surface * parent, GMutex * render_lock);

GstWlDisplay *gst_wl_window_get_display (GstWlWindow * window);
struct wl_surface *gst_wl_window_get_wl_surface (GstWlWindow * window);
gboolean gst_wl_window_is_toplevel (GstWlWindow *window);

void gst_wl_window_render (GstWlWindow * window, GstWlBuffer * buffer,
        const GstVideoInfo * info);
void gst_wl_window_set_render_rectangle (GstWlWindow * window, gint x, gint y,
        gint w, gint h);
void gst_wl_window_set_source_crop (GstWlWindow * window, GstBuffer * buffer);
void gst_wl_window_set_alpha (GstWlWindow * window, gfloat alpha);

G_END_DECLS

#endif /* __GST_WL_WINDOW_H__ */