mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-01 06:01:04 +00:00
62 lines
1.9 KiB
C
62 lines
1.9 KiB
C
|
/*
|
||
|
|
* 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., 59 Temple Place - Suite 330,
|
||
|
|
* Boston, MA 02111-1307, USA.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <gstgleffects.h>
|
||
|
|
|
||
|
|
static void
|
||
|
|
gst_gl_effects_sin_callback (gint width, gint height, guint texture, gpointer data)
|
||
|
|
{
|
||
|
|
GstGLEffects* effects = GST_GL_EFFECTS (data);
|
||
|
|
|
||
|
|
GstGLShader *shader;
|
||
|
|
|
||
|
|
shader = g_hash_table_lookup (effects->shaderstable, "sin0");
|
||
|
|
|
||
|
|
if (!shader) {
|
||
|
|
shader = gst_gl_shader_new ();
|
||
|
|
g_hash_table_insert (effects->shaderstable, "sin0", shader);
|
||
|
|
}
|
||
|
|
|
||
|
|
g_return_if_fail (
|
||
|
|
gst_gl_shader_compile_and_check (shader, sin_fragment_source,
|
||
|
|
GST_GL_SHADER_FRAGMENT_SOURCE));
|
||
|
|
|
||
|
|
glMatrixMode (GL_PROJECTION);
|
||
|
|
glLoadIdentity ();
|
||
|
|
|
||
|
|
gst_gl_shader_use (shader);
|
||
|
|
|
||
|
|
glActiveTexture (GL_TEXTURE0);
|
||
|
|
glEnable (GL_TEXTURE_RECTANGLE_ARB);
|
||
|
|
glBindTexture (GL_TEXTURE_RECTANGLE_ARB, texture);
|
||
|
|
|
||
|
|
gst_gl_shader_set_uniform_1i (shader, "tex", 0);
|
||
|
|
|
||
|
|
gst_gl_effects_draw_texture (effects, texture);
|
||
|
|
}
|
||
|
|
|
||
|
|
void
|
||
|
|
gst_gl_effects_sin (GstGLEffects *effects) {
|
||
|
|
GstGLFilter *filter = GST_GL_FILTER (effects);
|
||
|
|
|
||
|
|
gst_gl_filter_render_to_target (filter, effects->intexture, effects->outtexture,
|
||
|
|
gst_gl_effects_sin_callback, effects);
|
||
|
|
}
|