/*

 * GStreamer

 * Copyright (C) 2007 David Schleef <ds@schleef.org>

 * Copyright (C) 2008 Julien Isorce <julien.isorce@gmail.com>

 * Copyright (C) 2008 Filippo Argiolas <filippo.argiolas@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_GL_BASE_FILTER_H_

#define _GST_GL_BASE_FILTER_H_

#include <gst/base/gstbasetransform.h>

#include <gst/gl/gstgl_fwd.h>

G_BEGIN_DECLS

GST_GL_API

GType gst_gl_base_filter_get_type(void);

#define GST_TYPE_GL_BASE_FILTER            (gst_gl_base_filter_get_type())

#define GST_GL_BASE_FILTER(obj)            (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_GL_BASE_FILTER,GstGLBaseFilter))

#define GST_IS_GL_BASE_FILTER(obj)         (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_GL_BASE_FILTER))

#define GST_GL_BASE_FILTER_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST((klass) ,GST_TYPE_GL_BASE_FILTER,GstGLBaseFilterClass))

#define GST_IS_GL_BASE_FILTER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass) ,GST_TYPE_GL_BASE_FILTER))

#define GST_GL_BASE_FILTER_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS((obj) ,GST_TYPE_GL_BASE_FILTER,GstGLBaseFilterClass))

/**

 * GstGLBaseFilter:

 * @display: the currently configured #GstGLDisplay

 * @context: the currently configured #GstGLContext

 * @in_caps: the currently configured input #GstCaps

 * @out_caps: the currently configured output #GstCaps

 *

 * The parent instance type of a base GStreamer GL Filter.

 */

struct _GstGLBaseFilter

{

  GstBaseTransform   parent;

  /*< public >*/

  GstGLDisplay      *display;

  GstGLContext      *context;

  GstCaps           *in_caps;

  GstCaps           *out_caps;

  /*< private >*/

  gpointer           _padding[GST_PADDING];

  GstGLBaseFilterPrivate *priv;

};

/**

 * GstGLBaseFilterClass:

 * @supported_gl_api: the logical-OR of #GstGLAPI's supported by this element

 * @gl_start: called in the GL thread to setup the element GL state.

 * @gl_stop: called in the GL thread to setup the element GL state.

 * @gl_set_caps: called in the GL thread when caps are set on @filter.

 *

 * The base class for GStreamer GL Filter.

 */

struct _GstGLBaseFilterClass

{

  GstBaseTransformClass parent_class;

  /*< public >*/

  GstGLAPI supported_gl_api;

  gboolean (*gl_start)          (GstGLBaseFilter *filter);

  void     (*gl_stop)           (GstGLBaseFilter *filter);

  gboolean (*gl_set_caps)       (GstGLBaseFilter *filter, GstCaps * incaps, GstCaps * outcaps);

  /*< private >*/

  gpointer _padding[GST_PADDING];

};

GST_GL_API

gboolean        gst_gl_base_filter_find_gl_context          (GstGLBaseFilter * filter);

G_END_DECLS

#endif /* _GST_GL_BASE_FILTER_H_ */