/*

 * 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)

{

  GstGLContext *context = GST_GL_BASE_FILTER (effects)->context;

  GstGLFilter *filter = GST_GL_FILTER (effects);

  GstGLShader *shader;

  shader = g_hash_table_lookup (effects->shaderstable, "identity0");

  if (!shader) {

    GError *error = NULL;

    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;

    }

    g_hash_table_insert (effects->shaderstable, (gchar *) "identity0", shader);

  }

  gst_gl_shader_use (shader);

  gst_gl_filter_render_to_target_with_shader (filter, effects->intexture,

      effects->outtexture, shader);

}