[xiph-commits] r8941 - experimental/derf/theora-exp/lib

[tterribe at motherfish-iii.xiph.org]

Author: tterribe
Date: 2005-02-17 11:22:59 -0800 (Thu, 17 Feb 2005)
New Revision: 8941

Modified:
   experimental/derf/theora-exp/lib/decode.c
Log:
Fix off-by-one errors in the deringing code.
Thanks to ruik for the find.


Modified: experimental/derf/theora-exp/lib/decode.c
===================================================================
--- experimental/derf/theora-exp/lib/decode.c	2005-02-17 05:42:33 UTC (rev 8940)
+++ experimental/derf/theora-exp/lib/decode.c	2005-02-17 19:22:59 UTC (rev 8941)
@@ -1658,7 +1658,7 @@
       vmod[(by<<3)+bx]=mod<-64?_sharp_mod:OC_CLAMPI(0,mod,mod_hi);
     }
     psrc=src;
-    src+=_ystride&-(!(_b&8)|by<8);
+    src+=_ystride&-(!(_b&8)|by<7);
   }
   nsrc=dst;
   psrc=dst-!(_b&1);
@@ -1672,7 +1672,7 @@
       src+=_ystride;
     }
     psrc=nsrc;
-    nsrc+=!(_b&2)|bx<8;
+    nsrc+=!(_b&2)|bx<7;
   }
   src=dst;
   psrc=src-(_ystride&-!(_b&4));
@@ -1748,7 +1748,7 @@
     dst+=_ystride;
     psrc=src;
     src=nsrc;
-    nsrc+=_ystride&-(!(_b&8)|by<7);
+    nsrc+=_ystride&-(!(_b&8)|by<6);
   }
 }