system/shaders/guishader_frag_rgba_oes.glsl


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37

/*
 *      Copyright (C) 2010-2013 Team XBMC
 *      http://xbmc.org
 *
 *  This Program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2, or (at your option)
 *  any later version.
 *
 *  This Program 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 General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with XBMC; see the file COPYING.  If not, see
 *  <http://www.gnu.org/licenses/>.
 *
 */

#extension GL_OES_EGL_image_external : require

precision mediump float;
uniform samplerExternalOES m_samp0;
varying vec4      m_cord0;

uniform float     m_brightness;
uniform float     m_contrast;

void main ()
{
    vec4 color = texture2D(m_samp0, m_cord0.xy).rgba;
    color = color * m_contrast;
    color = color + m_brightness;

    gl_FragColor.rgba = color;
}