mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-10 03:19:40 +00:00
72 lines
2.4 KiB
C
72 lines
2.4 KiB
C
/*
|
|
* GStreamer
|
|
* Copyright (C) 2008-2010 Filippo Argiolas <filippo.argiolas@gmail.com>
|
|
* Copyright (C) 2015 Michał Dębski <debski.mi.zd@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"
|
|
|
|
static void
|
|
gst_gl_effects_laplacian_callback (gint width, gint height, guint texture,
|
|
gpointer data)
|
|
{
|
|
GstGLShader *shader = NULL;
|
|
GstGLEffects *effects = GST_GL_EFFECTS (data);
|
|
GstGLFilter *filter = GST_GL_FILTER (effects);
|
|
|
|
if (NULL != (shader = gst_gl_effects_get_fragment_shader (effects, "conv0",
|
|
conv9_fragment_source_gles2, conv9_fragment_source_opengl))) {
|
|
GstGLFuncs *gl = GST_GL_BASE_FILTER (filter)->context->gl_vtable;
|
|
static gfloat kernel[9] = { 0.0, -1.0, 0.0,
|
|
-1.0, 4.0, -1.0,
|
|
0.0, -1.0, 0.0
|
|
};
|
|
|
|
#if GST_GL_HAVE_OPENGL
|
|
if (USING_OPENGL (GST_GL_BASE_FILTER (filter)->context)) {
|
|
gl->MatrixMode (GL_PROJECTION);
|
|
gl->LoadIdentity ();
|
|
}
|
|
#endif
|
|
|
|
gst_gl_shader_use (shader);
|
|
|
|
gl->ActiveTexture (GL_TEXTURE0);
|
|
gl->BindTexture (GL_TEXTURE_2D, texture);
|
|
|
|
gst_gl_shader_set_uniform_1i (shader, "tex", 0);
|
|
gst_gl_shader_set_uniform_1f (shader, "height", height);
|
|
gst_gl_shader_set_uniform_1f (shader, "width", width);
|
|
gst_gl_shader_set_uniform_1fv (shader, "kernel", 9, kernel);
|
|
gst_gl_shader_set_uniform_1i (shader, "invert", effects->invert);
|
|
|
|
gst_gl_filter_draw_texture (filter, texture, width, height);
|
|
}
|
|
}
|
|
|
|
void
|
|
gst_gl_effects_laplacian (GstGLEffects * effects)
|
|
{
|
|
gst_gl_filter_render_to_target (GST_GL_FILTER (effects), TRUE,
|
|
effects->intexture, effects->outtexture,
|
|
gst_gl_effects_laplacian_callback, effects);
|
|
}
|