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/*
* 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/>.
*
*/
#version 100
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 vec2 m_step;
uniform mat4 m_yuvmat;
uniform mat3 m_primMat;
uniform float m_gammaDstInv;
uniform float m_gammaSrc;
uniform float m_toneP1;
uniform float m_luminance;
uniform vec3 m_coefsDst;
uniform float m_alpha;
void main()
{
vec4 rgb;
vec4 yuv;
#if defined(XBMC_YV12) || defined(XBMC_NV12)
yuv = vec4(texture2D(m_sampY, m_cordY).r,
texture2D(m_sampU, m_cordU).g,
texture2D(m_sampV, m_cordV).a,
1.0);
#elif defined(XBMC_NV12_RRG)
yuv = vec4(texture2D(m_sampY, m_cordY).r,
texture2D(m_sampU, m_cordU).r,
texture2D(m_sampV, m_cordV).g,
1.0);
#endif
rgb = m_yuvmat * yuv;
rgb.a = m_alpha;
#if defined(XBMC_COL_CONVERSION)
rgb.rgb = pow(max(vec3(0), rgb.rgb), vec3(m_gammaSrc));
rgb.rgb = max(vec3(0), m_primMat * rgb.rgb);
rgb.rgb = pow(rgb.rgb, vec3(m_gammaDstInv));
#if defined(KODI_TONE_MAPPING_REINHARD)
float luma = dot(rgb.rgb, m_coefsDst);
rgb.rgb *= reinhard(luma) / luma;
#elif defined(KODI_TONE_MAPPING_ACES)
rgb.rgb = inversePQ(rgb.rgb);
rgb.rgb *= (10000.0 / m_luminance) * (2.0 / m_toneP1);
rgb.rgb = aces(rgb.rgb);
rgb.rgb *= (1.24 / m_toneP1);
rgb.rgb = pow(rgb.rgb, vec3(0.27));
#elif defined(KODI_TONE_MAPPING_HABLE)
rgb.rgb = inversePQ(rgb.rgb);
rgb.rgb *= m_toneP1;
float wp = m_luminance / 100.0;
rgb.rgb = hable(rgb.rgb * wp) / hable(vec3(wp));
rgb.rgb = pow(rgb.rgb, vec3(1.0 / 2.2));
#endif
#endif
gl_FragColor = rgb;
}
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