ADD: [gles] BOB deinterlacing

2 files changed, 96 insertions, 0 deletions

diff --git a/system/shaders/guishader_frag_rgba_bob.glsl b/system/shaders/guishader_frag_rgba_bob.glsl
new file mode 100644
index 0000000000..3b02726496
--- /dev/null
+++ b/system/shaders/guishader_frag_rgba_bob.glsl
@@ -0,0 +1,47 @@
+/*
+ *      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/>.
+ *
+ */
+
+precision highp float;
+uniform sampler2D m_samp0;
+uniform sampler2D m_samp1;
+varying vec4      m_cord0;
+varying vec4      m_cord1;
+varying lowp vec4 m_colour;
+uniform int       m_method;
+uniform int       m_field;
+uniform float     m_step;
+
+void main ()
+{
+  vec2 source;
+  source = m_cord0.xy;
+  
+  float temp1 = mod(source.y, 2.0*m_step);
+  float temp2 = source.y - temp1;
+  source.y = temp2 + m_step/2.0 - float(m_field)*m_step;
+
+  // Blend missing line
+  vec2 below;
+  float bstep = step(m_step, temp1);
+  below.x = source.x;
+  below.y = source.y + (2.0*m_step*bstep);
+
+  gl_FragColor = mix(texture2D(m_samp0, source), texture2D(m_samp0, below), 0.5);
+}
diff --git a/system/shaders/guishader_frag_rgba_bob_oes.glsl b/system/shaders/guishader_frag_rgba_bob_oes.glsl
new file mode 100644
index 0000000000..9b7be39744
--- /dev/null
+++ b/system/shaders/guishader_frag_rgba_bob_oes.glsl
@@ -0,0 +1,49 @@
+/*
+ *      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 highp float;
+uniform samplerExternalOES m_samp0;
+uniform samplerExternalOES m_samp1;
+varying vec4      m_cord0;
+varying vec4      m_cord1;
+varying lowp vec4 m_colour;
+uniform int       m_method;
+uniform int       m_field;
+uniform float     m_step;
+
+void main ()
+{
+  vec2 source;
+  source = m_cord0.xy;
+  
+  float temp1 = mod(source.y, 2.0*m_step);
+  float temp2 = source.y - temp1;
+  source.y = temp2 + m_step/2.0 - float(m_field)*m_step;
+  
+  // Blend missing line
+  vec2 below;
+  float bstep = step(m_step, temp1);
+  below.x = source.x;
+  below.y = source.y + (2.0*m_step*bstep);
+
+  gl_FragColor = mix(texture2D(m_samp0, source), texture2D(m_samp0, below), 0.5);
+}