/* GStreamer

 * Copyright (C) <2005> Julien Moutte <julien@moutte.net>

 *

 * 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 St, Fifth Floor,

 * Boston, MA 02110-1301, USA.

 */

#ifndef __GST_XVCONTEXT_H__

#define __GST_XVCONTEXT_H__

#ifdef HAVE_XSHM

#include <sys/types.h>

#include <sys/ipc.h>

#include <sys/shm.h>

#endif /* HAVE_XSHM */

#include <X11/Xlib.h>

#include <X11/Xutil.h>

#ifdef HAVE_XSHM

#include <X11/extensions/XShm.h>

#endif /* HAVE_XSHM */

#include <X11/extensions/Xv.h>

#include <X11/extensions/Xvlib.h>

#include <string.h>

#include <math.h>

#include <stdlib.h>

#include <gst/video/video.h>

G_BEGIN_DECLS

typedef struct _GstXvContextConfig GstXvContextConfig;

typedef struct _GstXvImageFormat GstXvImageFormat;

typedef struct _GstXvContext GstXvContext;

/**

 * GstXvContextConfig:

 *

 * current configuration of the context

 */

struct _GstXvContextConfig

{

  gchar *display_name;

  guint  adaptor_nr;

  /* port attributes */

  gboolean autopaint_colorkey;

  gint colorkey;

  gboolean double_buffer;

  gint brightness;

  gint contrast;

  gint hue;

  gint saturation;

  gboolean cb_changed;

};

/**

 * GstXvImageFormat:

 * @format: the image format

 * @caps: generated #GstCaps for this image format

 *

 * Structure storing image format to #GstCaps association.

 */

struct _GstXvImageFormat

{

  gint format;

  GstVideoFormat vformat;

  GstCaps *caps;

};

#define GST_TYPE_XVCONTEXT      (gst_xvcontext_get_type())

#define GST_IS_XVCONTEXT(obj)   (GST_IS_MINI_OBJECT_TYPE(obj, GST_TYPE_XVCONTEXT))

#define GST_XVCONTEXT_CAST(obj) ((GstXvContext *)obj)

#define GST_XVCONTEXT(obj)      (GST_XVCONTEXT_CAST(obj))

/*

 * GstXvContext:

 * @disp: the X11 Display of this context

 * @screen: the default Screen of Display @disp

 * @screen_num: the Screen number of @screen

 * @visual: the default Visual of Screen @screen

 * @root: the root Window of Display @disp

 * @white: the value of a white pixel on Screen @screen

 * @black: the value of a black pixel on Screen @screen

 * @depth: the color depth of Display @disp

 * @bpp: the number of bits per pixel on Display @disp

 * @endianness: the endianness of image bytes on Display @disp

 * @width: the width in pixels of Display @disp

 * @height: the height in pixels of Display @disp

 * @widthmm: the width in millimeters of Display @disp

 * @heightmm: the height in millimeters of Display @disp

 * @par: the pixel aspect ratio calculated from @width, @widthmm and @height,

 * @heightmm ratio

 * @use_xshm: used to known wether of not XShm extension is usable or not even

 * if the Extension is present

 * @xv_port_id: the XVideo port ID

 * @im_format: used to store at least a valid format for XShm calls checks

 * @formats_list: list of supported image formats on @xv_port_id

 * @channels_list: list of #GstColorBalanceChannels

 * @caps: the #GstCaps that Display @disp can accept

 *

 * Structure used to store various informations collected/calculated for a

 * Display.

 */

struct _GstXvContext

{

  GstMiniObject parent;

  GMutex lock;

  Display *disp;

  Screen *screen;

  gint screen_num;

  Visual *visual;

  Window root;

  gulong white, black;

  gint depth;

  gint bpp;

  gint endianness;

  gint width, height;

  gint widthmm, heightmm;

  GValue *par;                  /* calculated pixel aspect ratio */

  gboolean use_xshm;

  XvPortID xv_port_id;

  guint nb_adaptors;

  gchar **adaptors;

  guint adaptor_nr;

  gint im_format;

  /* port features */

  gboolean have_autopaint_colorkey;

  gboolean have_colorkey;

  gboolean have_double_buffer;

  gboolean have_iturbt709;

  GList *formats_list;

  GList *channels_list;

  GstCaps *caps;

  /* Optimisation storage for buffer_alloc return */

  GstCaps *last_caps;

  gint last_format;

  gint last_width;

  gint last_height;

};

GType gst_xvcontext_get_type (void);

void            gst_xvcontext_config_clear (GstXvContextConfig *config);

GstXvContext *  gst_xvcontext_new          (GstXvContextConfig *config, GError **error);

/* refcounting */

static inline GstXvContext *

gst_xvcontext_ref (GstXvContext * xvcontext)

{

  return GST_XVCONTEXT_CAST (gst_mini_object_ref (GST_MINI_OBJECT_CAST (

      xvcontext)));

}

static inline void

gst_xvcontext_unref (GstXvContext * xvcontext)

{

  gst_mini_object_unref (GST_MINI_OBJECT_CAST (xvcontext));

}

gint            gst_xvcontext_get_format_from_info      (GstXvContext * xvcontext,

                                                         GstVideoInfo * info);

void            gst_xvcontext_set_synchronous           (GstXvContext * xvcontext,

                                                         gboolean synchronous);

void            gst_xvcontext_update_colorbalance       (GstXvContext * xvcontext,

                                                         GstXvContextConfig * config);

void            gst_xvcontext_set_colorimetry           (GstXvContext * xvcontext,

                                                         GstVideoColorimetry *colorimetry);

typedef struct _GstXWindow GstXWindow;

/*

 * GstXWindow:

 * @win: the Window ID of this X11 window

 * @width: the width in pixels of Window @win

 * @height: the height in pixels of Window @win

 * @internal: used to remember if Window @win was created internally or passed

 * through the #GstVideoOverlay interface

 * @gc: the Graphical Context of Window @win

 *

 * Structure used to store informations about a Window.

 */

struct _GstXWindow

{

  GstXvContext *context;

  Window win;

  gint width, height;

  gboolean have_render_rect;

  GstVideoRectangle render_rect;

  gboolean internal;

  GC gc;

};

G_END_DECLS

GstXWindow *   gst_xvcontext_create_xwindow     (GstXvContext * context,

                                                 gint width, gint height);

GstXWindow *   gst_xvcontext_create_xwindow_from_xid (GstXvContext * context, XID xid);

void           gst_xwindow_destroy              (GstXWindow * window);

void           gst_xwindow_set_event_handling   (GstXWindow * window, gboolean handle_events);

void           gst_xwindow_set_title            (GstXWindow * window, const gchar * title);

void           gst_xwindow_update_geometry      (GstXWindow * window);

void           gst_xwindow_clear                (GstXWindow * window);

void           gst_xwindow_set_render_rectangle (GstXWindow * window,

                                                 gint x, gint y, gint width, gint height);

#endif /* __GST_XVCONTEXT_H__ */