/*

 * GStreamer

 * Copyright (C) 2016 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 __EXT_GL_GST_GL_UTILS_H__

#define __EXT_GL_GST_GL_UTILS_H__

#include <gst/gl/gl.h>

G_BEGIN_DECLS

gboolean gst_gl_context_gen_shader (GstGLContext * context,

    const gchar * shader_vertex_source,

    const gchar * shader_fragment_source, GstGLShader ** shader);

void gst_gl_multiply_matrix4 (const gfloat * a, const gfloat * b, gfloat * result);

void gst_gl_get_affine_transformation_meta_as_ndc_ext (GstVideoAffineTransformationMeta *

    meta, gfloat * matrix);

void gst_gl_set_affine_transformation_meta_from_ndc_ext (GstVideoAffineTransformationMeta * meta, const gfloat * matrix);

G_END_DECLS

#endif /* __EXT_GL_GST_GL_UTILS_H__ */