/*
* Copyright (c) 2006 Nokia Corporation and/or its subsidiary(-ies).
* All rights reserved.
* This component and the accompanying materials are made available
* under the terms of "Eclipse Public License v1.0"
* which accompanies this distribution, and is available
* at the URL "http://www.eclipse.org/legal/epl-v10.html".
*
* Initial Contributors:
* Nokia Corporation - initial contribution.
*
* Contributors:
*
* Description: 
*
*/


#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include "videoorientation.h"
#include "interfaces-marshal.h"

#include <string.h>

/**
 * SECTION:gstvideoorientation
 * @short_description: Interface for elements providing video orientation
 * controls
 *
 * The interface allows unified access to control flipping and autocenter
 * operation of video-sources or operators.
 *
 * Since: 0.10.11
 */

static void gst_video_orientation_iface_init (GstVideoOrientationInterface *
    iface);
#ifdef __SYMBIAN32__
EXPORT_C
#endif


GType
gst_video_orientation_get_type (void)
{
  static GType gst_video_orientation_type = 0;

  if (!gst_video_orientation_type) {
    static const GTypeInfo gst_video_orientation_info = {
      sizeof (GstVideoOrientationInterface),
      (GBaseInitFunc) gst_video_orientation_iface_init,
      NULL,
      NULL,
      NULL,
      NULL,
      0,
      0,
      NULL,
    };

    gst_video_orientation_type = g_type_register_static (G_TYPE_INTERFACE,
        "GstVideoOrientation", &gst_video_orientation_info, 0);
    g_type_interface_add_prerequisite (gst_video_orientation_type,
        GST_TYPE_IMPLEMENTS_INTERFACE);
  }

  return gst_video_orientation_type;
}

static void
gst_video_orientation_iface_init (GstVideoOrientationInterface * iface)
{
  /* default virtual functions */

  iface->get_hflip = NULL;
  iface->get_vflip = NULL;
  iface->get_hcenter = NULL;
  iface->get_vcenter = NULL;

  iface->set_hflip = NULL;
  iface->set_vflip = NULL;
  iface->set_hcenter = NULL;
  iface->set_vcenter = NULL;
}

/**
 * gst_video_orientation_get_hflip:
 * @video_orientation: #GstVideoOrientation interface of a #GstElement
 * @flip: return location for the result
 *
 * Get the horizontal flipping state (%TRUE for flipped) from the given object.
 *
 * Since: 0.10.11
 * Returns: %TRUE in case the element supports flipping
 */
#ifdef __SYMBIAN32__
EXPORT_C
#endif

gboolean
gst_video_orientation_get_hflip (GstVideoOrientation * video_orientation,
    gboolean * flip)
{
  GstVideoOrientationInterface *iface =
      GST_VIDEO_ORIENTATION_GET_IFACE (video_orientation);

  if (iface->get_hflip) {
    return iface->get_hflip (video_orientation, flip);
  }
  return FALSE;
}

/**
 * gst_video_orientation_get_vflip:
 * @video_orientation: #GstVideoOrientation interface of a #GstElement
 * @flip: return location for the result
 *
 * Get the vertical flipping state (%TRUE for flipped) from the given object.
 *
 * Since: 0.10.11
 * Returns: %TRUE in case the element supports flipping
 */
#ifdef __SYMBIAN32__
EXPORT_C
#endif

gboolean
gst_video_orientation_get_vflip (GstVideoOrientation * video_orientation,
    gboolean * flip)
{
  GstVideoOrientationInterface *iface =
      GST_VIDEO_ORIENTATION_GET_IFACE (video_orientation);

  if (iface->get_vflip) {
    return iface->get_vflip (video_orientation, flip);
  }
  return FALSE;
}

/**
 * gst_video_orientation_get_hcenter:
 * @video_orientation: #GstVideoOrientation interface of a #GstElement
 * @center: return location for the result
 *
 * Get the horizontal centering offset from the given object.
 *
 * Since: 0.10.11
 * Returns: %TRUE in case the element supports centering
 */
#ifdef __SYMBIAN32__
EXPORT_C
#endif

gboolean
gst_video_orientation_get_hcenter (GstVideoOrientation * video_orientation,
    gint * center)
{
  GstVideoOrientationInterface *iface =
      GST_VIDEO_ORIENTATION_GET_IFACE (video_orientation);

  if (iface->get_hcenter) {
    return iface->get_hcenter (video_orientation, center);
  }
  return FALSE;
}

/**
 * gst_video_orientation_get_vcenter:
 * @video_orientation: #GstVideoOrientation interface of a #GstElement
 * @center: return location for the result
 *
 * Get the vertical centering offset from the given object.
 *
 * Since: 0.10.11
 * Returns: %TRUE in case the element supports centering
 */
#ifdef __SYMBIAN32__
EXPORT_C
#endif

gboolean
gst_video_orientation_get_vcenter (GstVideoOrientation * video_orientation,
    gint * center)
{
  GstVideoOrientationInterface *iface =
      GST_VIDEO_ORIENTATION_GET_IFACE (video_orientation);

  if (iface->get_vcenter) {
    return iface->get_vcenter (video_orientation, center);
  }
  return FALSE;
}

/**
 * gst_video_orientation_set_hflip:
 * @video_orientation: #GstVideoOrientation interface of a #GstElement
 * @flip: use flipping
 *
 * Set the horizontal flipping state (%TRUE for flipped) for the given object.
 *
 * Since: 0.10.11
 * Returns: %TRUE in case the element supports flipping
 */
#ifdef __SYMBIAN32__
EXPORT_C
#endif

gboolean
gst_video_orientation_set_hflip (GstVideoOrientation * video_orientation,
    gboolean flip)
{
  GstVideoOrientationInterface *iface =
      GST_VIDEO_ORIENTATION_GET_IFACE (video_orientation);

  if (iface->set_hflip) {
    return iface->set_hflip (video_orientation, flip);
  }
  return FALSE;
}

/**
 * gst_video_orientation_set_vflip:
 * @video_orientation: #GstVideoOrientation interface of a #GstElement
 * @flip: use flipping
 *
 * Set the vertical flipping state (%TRUE for flipped) for the given object.
 *
 * Since: 0.10.11
 * Returns: %TRUE in case the element supports flipping
 */
#ifdef __SYMBIAN32__
EXPORT_C
#endif

gboolean
gst_video_orientation_set_vflip (GstVideoOrientation * video_orientation,
    gboolean flip)
{
  GstVideoOrientationInterface *iface =
      GST_VIDEO_ORIENTATION_GET_IFACE (video_orientation);

  if (iface->set_vflip) {
    return iface->set_vflip (video_orientation, flip);
  }
  return FALSE;
}

/**
 * gst_video_orientation_set_hcenter:
 * @video_orientation: #GstVideoOrientation interface of a #GstElement
 * @center: centering offset
 *
 * Set the horizontal centering offset for the given object.
 *
 * Since: 0.10.11
 * Returns: %TRUE in case the element supports centering
 */
#ifdef __SYMBIAN32__
EXPORT_C
#endif

gboolean
gst_video_orientation_set_hcenter (GstVideoOrientation * video_orientation,
    gint center)
{
  GstVideoOrientationInterface *iface =
      GST_VIDEO_ORIENTATION_GET_IFACE (video_orientation);

  if (iface->set_hcenter) {
    return iface->set_hcenter (video_orientation, center);
  }
  return FALSE;
}

/**
 * gst_video_orientation_set_vcenter:
 * @video_orientation: #GstVideoOrientation interface of a #GstElement
 * @center: centering offset
 *
 * Set the vertical centering offset for the given object.
 *
 * Since: 0.10.11
 * Returns: %TRUE in case the element supports centering
 */
#ifdef __SYMBIAN32__
EXPORT_C
#endif

gboolean
gst_video_orientation_set_vcenter (GstVideoOrientation * video_orientation,
    gint center)
{
  GstVideoOrientationInterface *iface =
      GST_VIDEO_ORIENTATION_GET_IFACE (video_orientation);

  if (iface->set_vcenter) {
    return iface->set_vcenter (video_orientation, center);
  }
  return FALSE;
}