/*

 * GStreamer

 * Copyright (C) 2012 Collabora Ltd.

 *   @author: Sebastian Dröge <sebastian.droege@collabora.co.uk>

 * Copyright (C) 2014 Julien Isorce <julien.isorce@gmail.com>

 *

 * 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_EGL_IMAGE_H_

#define _GST_EGL_IMAGE_H_

#include <gst/gl/gstgl_fwd.h>

#include <gst/gl/gstglformat.h>

G_BEGIN_DECLS

GST_GL_API GType gst_egl_image_get_type (void);

#define GST_TYPE_EGL_IMAGE                         (gst_egl_image_get_type())

#define GST_IS_EGL_IMAGE(obj)                      (GST_IS_MINI_OBJECT_TYPE(obj, GST_TYPE_EGL_IMAGE))

#define GST_EGL_IMAGE_CAST(obj)                    ((GstEGLImage *)(obj))

#define GST_EGL_IMAGE(obj)                         (GST_EGL_IMAGE_CAST(obj))

typedef struct _GstEGLImage GstEGLImage;

/**

 * GstEGLImageDestroyNotify:

 * @image: a #GstEGLImage

 * @data: user data passed to gst_egl_image_new_wrapped()

 *

 * Function to be called when the GstEGLImage is destroyed. It should free

 * the associated #EGLImage if necessary

 */

typedef void (*GstEGLImageDestroyNotify) (GstEGLImage * image,

    gpointer data);

/**

 * GstEGLImage:

 *

 * Opaque #GstEGLImage struct.

 */

struct _GstEGLImage

{

  GstMiniObject parent;

  GstGLContext *context;

  gpointer image;

  GstGLFormat format;

  /* <private> */

  gpointer destroy_data;

  GstEGLImageDestroyNotify destroy_notify;

  gpointer _padding[GST_PADDING];

};

GST_GL_API

GstEGLImage *             gst_egl_image_new_wrapped             (GstGLContext * context,

                                                                 gpointer image,

                                                                 GstGLFormat format,

                                                                 gpointer user_data,

                                                                 GstEGLImageDestroyNotify user_data_destroy);

GST_GL_API

gpointer                gst_egl_image_get_image                 (GstEGLImage * image);

GST_GL_API

GstEGLImage *           gst_egl_image_from_texture              (GstGLContext * context,

                                                                 GstGLMemory * gl_mem,

                                                                 guintptr * attribs);

#if GST_GL_HAVE_DMABUF

GST_GL_API

GstEGLImage *           gst_egl_image_from_dmabuf               (GstGLContext * context,

                                                                 gint dmabuf,

                                                                 GstVideoInfo * in_info,

                                                                 gint plane,

                                                                 gsize offset);

GST_GL_API

gboolean                gst_egl_image_export_dmabuf             (GstEGLImage *image, int *fd, gint *stride, gsize *offset);

#endif

/**

 * gst_egl_image_ref:

 * @image: a #GstEGLImage.

 *

 * Increases the refcount of the given image by one.

 *

 * Returns: (transfer full): @image

 */

static inline GstEGLImage *

gst_egl_image_ref (GstEGLImage * image)

{

  return (GstEGLImage *) gst_mini_object_ref (GST_MINI_OBJECT_CAST (image));

}

/**

 * gst_egl_image_unref:

 * @image: (transfer full): a #GstEGLImage.

 *

 * Decreases the refcount of the image. If the refcount reaches 0, the image

 * with the associated metadata and memory will be freed.

 */

static inline void

gst_egl_image_unref (GstEGLImage * image)

{

  gst_mini_object_unref (GST_MINI_OBJECT_CAST (image));

}

G_END_DECLS

#endif /* _GST_EGL_IMAGE_H_ */