/*

 * GStreamer

 * Copyright (C) 2015 Lubosz Sarnecki <lubosz.sarnecki@collabora.co.uk>

 *

 * 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_OVERLAY_COMPOSITOR_H__

#define __GST_GL_OVERLAY_COMPOSITOR_H__

#include <gst/video/video.h>

#include <gst/gl/gstgl_fwd.h>

#define GST_TYPE_GL_OVERLAY_COMPOSITOR (gst_gl_overlay_compositor_get_type())

#define GST_GL_OVERLAY_COMPOSITOR(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_GL_OVERLAY_COMPOSITOR,GstGLOverlayCompositor))

#define GST_GL_OVERLAY_COMPOSITOR_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_GL_OVERLAY_COMPOSITOR,GstGLOverlayCompositorClass))

#define GST_IS_GL_OVERLAY_COMPOSITOR(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_GL_OVERLAY_COMPOSITOR))

#define GST_IS_GL_OVERLAY_COMPOSITOR_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_GL_OVERLAY_COMPOSITOR))

#define GST_GL_OVERLAY_COMPOSITOR_CAST(obj) ((GstGLOverlayCompositor*)(obj))

G_BEGIN_DECLS

GST_GL_API

GType gst_gl_overlay_compositor_get_type (void);

/**

 * GstGLOverlayCompositor

 *

 * Opaque #GstGLOverlayCompositor object

 */

struct _GstGLOverlayCompositor

{

  GstObject parent;

  GstGLContext *context;

  /* <private> */

  guint last_window_width;

  guint last_window_height;

  GList * overlays;

  GstGLShader *shader;

  gint  position_attrib;

  gint  texcoord_attrib;

  gpointer _padding[GST_PADDING];

};

/**

 * GstGLOverlayCompositorClass:

 *

 */

struct _GstGLOverlayCompositorClass

{

  GstObjectClass object_class;

  /* <private> */

  gpointer _padding[GST_PADDING];

};

GST_GL_API

GstGLOverlayCompositor *gst_gl_overlay_compositor_new (GstGLContext * context);

GST_GL_API

void gst_gl_overlay_compositor_free_overlays (GstGLOverlayCompositor * compositor);

GST_GL_API

void gst_gl_overlay_compositor_upload_overlays (GstGLOverlayCompositor * compositor,

        GstBuffer * buf);

GST_GL_API

void gst_gl_overlay_compositor_draw_overlays (GstGLOverlayCompositor * compositor);

GST_GL_API

GstCaps * gst_gl_overlay_compositor_add_caps(GstCaps * caps);

G_END_DECLS

#endif /* __GST_GL_OVERLAY_COMPOSITOR_H__ */