2 * Copyright (C) 2010-2013 Team XBMC
5 * This Program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2, or (at your option)
10 * This Program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with XBMC; see the file COPYING. If not, write to
17 * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
18 * http://www.gnu.org/copyleft/gpl.html
22 #if(XBMC_texture_rectangle)
23 # extension GL_ARB_texture_rectangle : enable
24 # define texture2D texture2DRect
25 # define sampler2D sampler2DRect
28 uniform sampler2D m_sampY;
29 uniform sampler2D m_sampU;
30 uniform sampler2D m_sampV;
35 uniform mat4 m_yuvmat;
37 uniform float m_stepX;
38 uniform float m_stepY;
48 float temp1 = mod(m_cordY.y, 2*m_stepY);
54 offsetY.y -= (temp1 - m_stepY/2 + float(m_field)*m_stepY);
55 offsetU.y -= (temp1 - m_stepY/2 + float(m_field)*m_stepY)/2;
56 offsetV.y -= (temp1 - m_stepY/2 + float(m_field)*m_stepY)/2;
58 yuv.rgba = vec4( texture2D(m_sampY, offsetY).r
59 , texture2D(m_sampU, offsetU).r
60 , texture2D(m_sampV, offsetV).a