* src/base/ftbbox.c (BBox_Cubic_Check): fixed the coefficient normalization algorithm (invalid final bit position, and invalid shift computation..)
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diff --git a/ChangeLog b/ChangeLog
index 559702d..34feac6 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 091a7bb..07700e5 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;