/*

 * GStreamer

 * Copyright (C) 2015 Matthew Waters <matthew@centricular.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 __CA_OPENGL_LAYER_SINK_H__

#define __CA_OPENGL_LAYER_SINK_H__

#include <gst/gst.h>

#include <gst/video/gstvideosink.h>

#include <gst/video/video.h>

#include <gst/gl/gl.h>

#include <gst/gl/gstglfuncs.h>

#include <gst/gl/cocoa/gstglcaopengllayer.h>

G_BEGIN_DECLS

#define GST_TYPE_CA_OPENGL_LAYER_SINK \

    (gst_ca_opengl_layer_sink_get_type())

#define GST_CA_OPENGL_LAYER_SINK(obj) \

    (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_CA_OPENGL_LAYER_SINK,GstCAOpenGLLayerSink))

#define GST_CA_OPENGL_LAYER_SINK_CLASS(klass) \

    (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_CA_OPENGL_LAYER_SINK,GstCAOpenGLLayerSinkClass))

#define GST_IS_CA_OPENGL_LAYER_SINK(obj) \

    (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_CA_OPENGL_LAYER_SINK))

#define GST_IS_CA_OPENGL_LAYER_SINK_CLASS(klass) \

    (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_CA_OPENGL_LAYER_SINK))

typedef struct _GstCAOpenGLLayerSink GstCAOpenGLLayerSink;

typedef struct _GstCAOpenGLLayerSinkClass GstCAOpenGLLayerSinkClass;

struct _GstCAOpenGLLayerSink

{

    GstVideoSink video_sink;

    /* caps */

    GstVideoInfo info;

    GstCaps *gl_caps;

    /* gl state */

    GstGLDisplay *display;

    GstGLContext *other_context;

    GstGLContext *context;

    guint      next_tex;

    GstBuffer *next_buffer;

    GstBuffer *next_sync;

    gpointer layer;

    gboolean keep_aspect_ratio;

    /* avoid replacing the stored_buffer while drawing */

    GMutex drawing_lock;

    GstBuffer *stored_buffer;

    GstBuffer *stored_sync;

    GLuint redisplay_texture;

    gboolean caps_change;

    guint window_width;

    guint window_height;

    /* gl state */

    GstGLShader *redisplay_shader;

    GLuint vao;

    GLuint vertex_buffer;

    GLuint vbo_indices;

    GLint  attr_position;

    GLint  attr_texture;

};

struct _GstCAOpenGLLayerSinkClass

{

    GstVideoSinkClass video_sink_class;

};

GType gst_ca_opengl_layer_sink_get_type(void);

GType gst_ca_opengl_layer_sink_bin_get_type (void);

G_END_DECLS

#endif /* __CA_OPENGL_LAYER_SINK__ */