gstreamer/ext/gl/effects/gstgleffectidentity.c

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/*
* GStreamer
* Copyright (C) 2008 Filippo Argiolas <filippo.argiolas@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.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "../gstgleffects.h"
void
gst_gl_effects_identity (GstGLEffects * effects)
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{
GstGLContext *context = GST_GL_BASE_FILTER (effects)->context;
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GstGLFilter *filter = GST_GL_FILTER (effects);
GstGLShader *shader;
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shader = g_hash_table_lookup (effects->shaderstable, "identity0");
if (!shader) {
GError *error = NULL;
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if (!(shader = gst_gl_shader_new_default (context, &error))) {
GST_ELEMENT_ERROR (effects, RESOURCE, NOT_FOUND,
("Failed to initialize identity shader: %s", error->message), (NULL));
return;
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}
g_hash_table_insert (effects->shaderstable, (gchar *) "identity0", shader);
}
gst_gl_shader_use (shader);
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gst_gl_filter_render_to_target_with_shader (filter, effects->intexture,
effects->outtexture, shader);
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}