home *** CD-ROM | disk | FTP | other *** search
- /*
- * Copyright (C) 2010 Team XBMC
- * http://www.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, write to
- * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
- * http://www.gnu.org/copyleft/gpl.html
- *
- */
-
- precision mediump float;
- uniform sampler2D m_sampY;
- uniform sampler2D m_sampU;
- uniform sampler2D m_sampV;
- varying vec2 m_cordY;
- varying vec2 m_cordU;
- varying vec2 m_cordV;
- uniform float m_alpha;
- uniform mat4 m_yuvmat;
- uniform float m_stepX;
- uniform float m_stepY;
- uniform int m_field;
-
- void main()
- {
- vec4 yuv, rgb;
-
- vec2 offsetY;
- vec2 offsetU;
- vec2 offsetV;
- float temp1 = mod(m_cordY.y, 2*m_stepY);
-
- offsetY = m_cordY;
- offsetU = m_cordU;
- offsetV = m_cordV;
-
- offsetY.y -= (temp1 - m_stepY/2 + float(m_field)*m_stepY);
- offsetU.y -= (temp1 - m_stepY/2 + float(m_field)*m_stepY)/2;
- offsetV.y -= (temp1 - m_stepY/2 + float(m_field)*m_stepY)/2;
-
- yuv.rgba = vec4(texture2D(m_sampY, offsetY).r, texture2D(m_sampU, offsetU).r, texture2D(m_sampV, offsetV).r, 1.0);
- rgb = m_yuvmat * yuv;
- rgb.a = m_alpha;
- gl_FragColor = rgb;
- }
-