Adding upstream version 2:20.4+dfsg.upstream/2%20.4+dfsg

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 58 insertions, 0 deletions

diff --git a/system/shaders/GL/1.2/gl_output.glsl b/system/shaders/GL/1.2/gl_output.glsl
new file mode 100644
index 0000000..d3294a8
--- /dev/null
+++ b/system/shaders/GL/1.2/gl_output.glsl
@@ -0,0 +1,58 @@
+/*
+ *      Copyright (C) 2010-2017 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/>.
+ *
+ */
+
+
+#if defined(XBMC_DITHER)
+uniform sampler2D m_dither;
+uniform float     m_ditherquant;
+uniform vec2      m_dithersize;
+#endif
+#if defined(KODI_3DLUT)
+uniform float     m_CLUTsize;
+uniform sampler3D m_CLUT;
+#endif
+
+void main()
+{
+  vec4 rgb        = process();
+
+#if defined(KODI_3DLUT)
+  // FIXME: can this be optimized?
+  rgb             = texture3D(m_CLUT, (rgb.rgb*(m_CLUTsize-1.0) + 0.5) / m_CLUTsize);
+#endif
+
+#if defined(XBMC_FULLRANGE)
+#if __VERSION__ <= 120
+  rgb = (rgb-(16.0/255.0)) * 255.0/219.0;
+#else
+  rgb             = clamp((rgb-(16.0/255.0)) * 255.0/219.0, 0, 1);
+#endif
+#endif
+
+#if defined(XBMC_DITHER)
+  vec2 ditherpos  = gl_FragCoord.xy / m_dithersize;
+  // ditherval is multiplied by 65536/(dither_size^2) to make it [0,1[
+  // FIXME: scale dither values before uploading?
+  float ditherval = texture2D(m_dither, ditherpos).r * 16.0;
+  rgb             = floor(rgb * m_ditherquant + ditherval) / m_ditherquant;
+#endif
+
+  gl_FragColor    = rgb;
+}