FS#12146: Fix libcook bugs introduced in r22055 by Sean Bartell.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29973 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 7 insertions, 0 deletions

diff --git a/apps/codecs/lib/codeclib_misc.h b/apps/codecs/lib/codeclib_misc.h
index f3ec209e78..f3b1805e26 100644
--- a/apps/codecs/lib/codeclib_misc.h
+++ b/apps/codecs/lib/codeclib_misc.h
@@ -65,6 +65,7 @@ static inline int32_t MULT32(int32_t x, int32_t y) {
   magic.whole = (int64_t)x * y;
   return magic.halves.hi;
 }
+
 static inline int32_t MULT31(int32_t x, int32_t y) {
   return MULT32(x,y)<<1;
 }
@@ -75,6 +76,12 @@ static inline int32_t MULT31_SHIFT15(int32_t x, int32_t y) {
   return ((uint32_t)(magic.halves.lo)>>15) | ((magic.halves.hi)<<17);
 }
 
+static inline int32_t MULT31_SHIFT16(int32_t x, int32_t y) {
+  union magic magic;
+  magic.whole  = (int64_t)x * y;
+  return ((uint32_t)(magic.halves.lo)>>16) | ((magic.halves.hi)<<16);
+}
+
 #else
 /* 32 bit multiply, more portable but less accurate */