1 /*
2 * GStreamer
3 * Copyright (C) 2008 Filippo Argiolas <filippo.argiolas@gmail.com>
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Library General Public License for more details.
14 *
15 * You should have received a copy of the GNU Library General Public
16 * License along with this library; if not, write to the
17 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
18 * Boston, MA 02110-1301, USA.
19 */
20 #ifdef HAVE_CONFIG_H
21 #include "config.h"
22 #endif
23
24 #include "../gstgleffects.h"
25
26 void
gst_gl_effects_identity(GstGLEffects * effects)27 gst_gl_effects_identity (GstGLEffects * effects)
28 {
29 GstGLContext *context = GST_GL_BASE_FILTER (effects)->context;
30 GstGLFilter *filter = GST_GL_FILTER (effects);
31 GstGLShader *shader;
32
33 shader = g_hash_table_lookup (effects->shaderstable, "identity0");
34 if (!shader) {
35 GError *error = NULL;
36
37 if (!(shader = gst_gl_shader_new_default (context, &error))) {
38 GST_ELEMENT_ERROR (effects, RESOURCE, NOT_FOUND,
39 ("Failed to initialize identity shader: %s", error->message), (NULL));
40 return;
41 }
42
43 g_hash_table_insert (effects->shaderstable, (gchar *) "identity0", shader);
44 }
45 gst_gl_shader_use (shader);
46
47 gst_gl_filter_render_to_target_with_shader (filter, effects->intexture,
48 effects->outtexture, shader);
49 }
50