diff options
Diffstat (limited to 'src/base/ftcalc.c')
| -rw-r--r-- | src/base/ftcalc.c | 34 |
1 files changed, 19 insertions, 15 deletions
diff --git a/src/base/ftcalc.c b/src/base/ftcalc.c index 04295a6..3892fab 100644 --- a/src/base/ftcalc.c +++ b/src/base/ftcalc.c @@ -110,12 +110,12 @@ FT_EXPORT_DEF( FT_Int32 ) FT_Sqrt32( FT_Int32 x ) { - FT_ULong val, root, newroot, mask; + FT_UInt32 val, root, newroot, mask; root = 0; - mask = 0x40000000L; - val = (FT_ULong)x; + mask = (FT_UInt32)0x40000000UL; + val = (FT_UInt32)x; do { @@ -362,6 +362,7 @@ long s; + /* XXX: this function does not allow 64-bit arguments */ if ( a == 0 || b == c ) return a; @@ -377,12 +378,12 @@ FT_Int64 temp, temp2; - ft_multo64( a, b, &temp ); + ft_multo64( (FT_Int32)a, (FT_Int32)b, &temp ); temp2.hi = 0; temp2.lo = (FT_UInt32)(c >> 1); FT_Add64( &temp, &temp2, &temp ); - a = ft_div64by32( temp.hi, temp.lo, c ); + a = ft_div64by32( temp.hi, temp.lo, (FT_Int32)c ); } else a = 0x7FFFFFFFL; @@ -416,8 +417,8 @@ FT_Int64 temp; - ft_multo64( a, b, &temp ); - a = ft_div64by32( temp.hi, temp.lo, c ); + ft_multo64( (FT_Int32)a, (FT_Int32)b, &temp ); + a = ft_div64by32( temp.hi, temp.lo, (FT_Int32)c ); } else a = 0x7FFFFFFFL; @@ -539,13 +540,14 @@ FT_UInt32 q; - s = a; a = FT_ABS( a ); - s ^= b; b = FT_ABS( b ); + /* XXX: this function does not allow 64-bit arguments */ + s = (FT_Int32)a; a = FT_ABS( a ); + s ^= (FT_Int32)b; b = FT_ABS( b ); if ( b == 0 ) { /* check for division by 0 */ - q = 0x7FFFFFFFL; + q = (FT_UInt32)0x7FFFFFFFL; } else if ( ( a >> 16 ) == 0 ) { @@ -562,7 +564,7 @@ temp2.hi = 0; temp2.lo = (FT_UInt32)( b >> 1 ); FT_Add64( &temp, &temp2, &temp ); - q = ft_div64by32( temp.hi, temp.lo, b ); + q = ft_div64by32( temp.hi, temp.lo, (FT_Int32)b ); } return ( s < 0 ? -(FT_Int32)q : (FT_Int32)q ); @@ -840,7 +842,7 @@ FT_Pos out_x, FT_Pos out_y ) { - FT_Int result; + FT_Long result; /* avoid overflow on 16-bit system */ /* deal with the trivial cases quickly */ @@ -889,8 +891,9 @@ FT_Int64 z1, z2; - ft_multo64( in_x, out_y, &z1 ); - ft_multo64( in_y, out_x, &z2 ); + /* XXX: this function does not allow 64-bit arguments */ + ft_multo64( (FT_Int32)in_x, (FT_Int32)out_y, &z1 ); + ft_multo64( (FT_Int32)in_y, (FT_Int32)out_x, &z2 ); if ( z1.hi > z2.hi ) result = +1; @@ -906,7 +909,8 @@ #endif } - return result; + /* XXX: only the sign of return value, +1/0/-1 must be used */ + return (FT_Int)result; } |