| /* |
| * 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" |
| |
| void |
| gst_gl_effects_sobel (GstGLEffects * effects) |
| { |
| GstGLFilter *filter = GST_GL_FILTER (effects); |
| GstGLShader *shader; |
| |
| shader = gst_gl_effects_get_fragment_shader (effects, "desat0", |
| desaturate_fragment_source_gles2); |
| gst_gl_filter_render_to_target_with_shader (filter, effects->intexture, |
| effects->midtexture[0], shader); |
| |
| shader = gst_gl_effects_get_fragment_shader (effects, "hconv0", |
| sep_sobel_hconv3_fragment_source_gles2); |
| gst_gl_shader_use (shader); |
| gst_gl_shader_set_uniform_1f (shader, "height", |
| GST_VIDEO_INFO_HEIGHT (&filter->out_info)); |
| gst_gl_filter_render_to_target_with_shader (filter, effects->midtexture[0], |
| effects->midtexture[1], shader); |
| |
| shader = gst_gl_effects_get_fragment_shader (effects, "vconv0", |
| sep_sobel_vconv3_fragment_source_gles2); |
| gst_gl_shader_use (shader); |
| gst_gl_shader_set_uniform_1f (shader, "width", |
| GST_VIDEO_INFO_WIDTH (&filter->out_info)); |
| gst_gl_filter_render_to_target_with_shader (filter, effects->midtexture[1], |
| effects->midtexture[0], shader); |
| |
| shader = gst_gl_effects_get_fragment_shader (effects, "len0", |
| sep_sobel_length_fragment_source_gles2); |
| gst_gl_shader_use (shader); |
| gst_gl_shader_set_uniform_1i (shader, "invert", effects->invert); |
| gst_gl_filter_render_to_target_with_shader (filter, effects->midtexture[0], |
| effects->outtexture, shader); |
| } |