Added more yuvdenoise stuff

git-svn-id: file:///media/trac/gputrans/trunk@60 9bcbe1e5-8bf3-0310-a9eb-bb9459eee777

src/decimate.cg

@@ -0,0 +1,54 @@
+/*
+ *  This file is part of the gputrans package
+ *  Copyright (C) 2006 Gavin Hurlbut
+ *
+ *  gputrans 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 of the License, 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 this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+/*HEADER---------------------------------------------------
+* $Id$
+*
+* Copyright 2006 Gavin Hurlbut
+* All rights reserved
+*
+*/
+
+struct deci {
+    float4 TEX0 : TEXCOORD0;
+};
+
+struct deciOut {
+    float4 TEX0 : TEXCOORD0;
+    float4 TEX1 : TEXCOORD1;
+    float4 TEX2 : TEXCOORD2;
+    float4 TEX3 : TEXCOORD3;
+};
+
+deciOut decimate_by_2( deci IN )
+{
+    deciOut OUT;
+
+    OUT.TEX0 = ((IN.TEX0 - 0.5) * 2.0) + 0.5;
+    OUT.TEX1 = OUT.TEX0 + float4(1,0,0,0);
+    OUT.TEX2 = OUT.TEX0 + float4(1,1,0,0);
+    OUT.TEX3 = OUT.TEX0 + float4(0,1,0,0);
+
+    return OUT;
+}
+
+/*
+ * vim:ts=4:sw=4:ai:et:si:sts=4
+ */
+

src/yuvdenoise.cg

@@ -45,6 +45,58 @@ float3 contrast_frame( float2  coord               : TEXCOORD0,
     return value;
 }
 
+float3 diff_frame( float2  coord               : TEXCOORD0,
+                   uniform samplerRECT frameA  : TEXUNIT0,
+                   uniform samplerRECT frameB  : TEXUNIT1) : COLOR
+{
+    string id = "$Id$";
+
+    float3 value;
+
+    value = texRECT( frameA, coord ).xyz - texRECT( frameB, coord ).xyz;
+    value = abs(value);
+
+    return value;
+}
+
+float thresh_diff( float2  coord               : TEXCOORD0,
+                   uniform samplerRECT frame   : TEXUNIT0,
+                   uniform float threshold) : COLOR
+{
+    string id = "$Id$";
+
+    float3 value;
+    float output;
+
+    value = texRECT( frame, coord ).xyz;
+    value -= threshold;
+    value.x = step( 0.0, value.x );
+    value.y = step( 0.0, value.y );
+    value.z = step( 0.0, value.z );
+
+    output = value.x + value.y + value.z;
+
+    return output;
+}
+
+float decimate_thresh_diff( float2  topleft             : TEXCOORD0,
+                            float2  topright            : TEXCOORD1,
+                            float2  bottomright         : TEXCOORD2,
+                            float2  bottomleft          : TEXCOORD3,
+                            uniform samplerRECT frame   : TEXUNIT0 ) : COLOR
+{
+    string id = "$Id$";
+
+    float value;
+
+    value  = texRECT(frame, topleft).x;
+    value += texRECT(frame, topright).x;
+    value += texRECT(frame, bottomleft).x;
+    value += texRECT(frame, bottomright).x;
+
+    return value;
+}
+
 
 /*
  * vim:ts=4:sw=4:ai:et:si:sts=4