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/*
* GStreamer
* Copyright (C) 2013 Matthew Waters <ystreet00@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_UTILS_H__
#define __GST_GL_UTILS_H__
#include <gst/video/video.h>
#include <gst/video/gstvideoaffinetransformationmeta.h>
#include <gst/gl/gstgl_fwd.h>
G_BEGIN_DECLS
GST_EXPORT
gboolean gst_gl_context_gen_shader (GstGLContext * context,
const gchar * shader_vertex_source,
const gchar * shader_fragment_source, GstGLShader ** shader);
GST_EXPORT
void gst_gl_context_del_shader (GstGLContext * context, GstGLShader * shader);
GST_EXPORT
gboolean gst_gl_ensure_element_data (gpointer element,
GstGLDisplay **display_ptr, GstGLContext ** other_context_ptr);
GST_EXPORT
gboolean gst_gl_handle_set_context (GstElement * element, GstContext * context,
GstGLDisplay ** display, GstGLContext ** other_context);
GST_EXPORT
gboolean gst_gl_handle_context_query (GstElement * element, GstQuery * query,
GstGLDisplay ** display, GstGLContext ** other_context);
GST_EXPORT
gboolean gst_gl_run_query (GstElement * element,
GstQuery * query, GstPadDirection direction);
GST_EXPORT
gsize gst_gl_get_plane_data_size (GstVideoInfo * info, GstVideoAlignment * align,
guint plane);
GST_EXPORT
gsize gst_gl_get_plane_start (GstVideoInfo * info, GstVideoAlignment * valign,
guint plane);
GST_EXPORT
GstCaps * gst_gl_caps_replace_all_caps_features (const GstCaps * caps,
const gchar * feature_name);
GST_EXPORT
gboolean gst_gl_value_set_texture_target_from_mask (GValue * value,
GstGLTextureTarget target_mask);
GST_EXPORT
gboolean gst_gl_value_set_texture_target (GValue * value, GstGLTextureTarget target);
GST_EXPORT
GstGLTextureTarget gst_gl_value_get_texture_target_mask (const GValue * value);
GST_EXPORT
void gst_gl_multiply_matrix4 (const gfloat * a, const gfloat * b, gfloat * result);
GST_EXPORT
void gst_gl_get_affine_transformation_meta_as_ndc (GstVideoAffineTransformationMeta *
meta, gfloat * matrix);
G_END_DECLS
#endif /* __GST_GL_UTILS_H__ */
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