* src/base/ftbbox.c (BBox_Cubic_Check): fixed the coefficient

	normalization algorithm (invalid final bit position, and invalid
	shift computation..)

2 files changed, 11 insertions, 5 deletions

diff --git a/ChangeLog b/ChangeLog
index 559702d18..34feac6d1 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2001-04-27  David Turner  <david@freetype.org>
+
+	* src/base/ftbbox.c (BBox_Cubic_Check): fixed the coefficient     
+	normalization algorithm (invalid final bit position, and invalid 
+	shift computation..)
+
 2001-04-26  Werner Lemberg  <wl@gnu.org>
 
 	* builds/unix/config.guess, builds/unix/config.sub: Updated to
diff --git a/src/base/ftbbox.c b/src/base/ftbbox.c
index 091a7bbfb..07700e500 100644
--- a/src/base/ftbbox.c
+++ b/src/base/ftbbox.c
@@ -382,25 +382,25 @@
         if ( t1 == 0 )  /* all coefficients are 0! */
           return;
 
-        if ( t1 > 0xFFFFFFL )
+        if ( t1 > 0x7FFFFFL )
         {
           do
           {
-            shift--;
+            shift++;
             t1 >>= 1;
-          } while ( t1 > 0xFFFFFFL );
+          } while ( t1 > 0x7FFFFFL );
 
           a >>= shift;
           b >>= shift;
           c >>= shift;
         }
-        else if ( t1 < 0x800000L )
+        else if ( t1 < 0x400000L )
         {
           do
           {
             shift++;
             t1 <<= 1;
-          } while ( t1 < 0x800000L );
+          } while ( t1 < 0x400000L );
 
           a <<= shift;
           b <<= shift;