diff options
Diffstat (limited to 'Modules/imageop.c')
| -rw-r--r-- | Modules/imageop.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/Modules/imageop.c b/Modules/imageop.c index 841ec1b2b4..57cb90b7e7 100644 --- a/Modules/imageop.c +++ b/Modules/imageop.c @@ -1,5 +1,5 @@ /*********************************************************** -Copyright 1991, 1992, 1993 by Stichting Mathematisch Centrum, +Copyright 1991, 1992, 1993, 1994 by Stichting Mathematisch Centrum, Amsterdam, The Netherlands. All Rights Reserved @@ -161,7 +161,7 @@ imageop_tovideo(self, args) for (y=1; y<maxy; y++) { /* Interpolate other lines */ for(x=0; x<maxx; x++) { i = y*maxx + x; - *ncp++ = (cp[i] + cp[i-maxx]) >> 1; + *ncp++ = ((int)cp[i] + (int)cp[i-maxx]) >> 1; } } } else { @@ -171,11 +171,11 @@ imageop_tovideo(self, args) for(x=0; x<maxx; x++) { i = (y*maxx + x)*4 + 1; *ncp++ = 0; /* Skip alfa comp */ - *ncp++ = (cp[i] + cp[i-4*maxx]) >> 1; + *ncp++ = ((int)cp[i] + (int)cp[i-4*maxx]) >> 1; i++; - *ncp++ = (cp[i] + cp[i-4*maxx]) >> 1; + *ncp++ = ((int)cp[i] + (int)cp[i-4*maxx]) >> 1; i++; - *ncp++ = (cp[i] + cp[i-4*maxx]) >> 1; + *ncp++ = ((int)cp[i] + (int)cp[i-4*maxx]) >> 1; } } } @@ -210,7 +210,7 @@ imageop_grey2mono(self, args) bit = 0x80; ovalue = 0; for ( i=0; i < len; i++ ) { - if ( cp[i] > tres ) + if ( (int)cp[i] > tres ) ovalue |= bit; bit >>= 1; if ( bit == 0 ) { @@ -252,7 +252,7 @@ imageop_grey2grey4(self, args) pos = 0; ovalue = 0; for ( i=0; i < len; i++ ) { - ovalue |= (cp[i] & 0xf0) >> pos; + ovalue |= ((int)cp[i] & 0xf0) >> pos; pos += 4; if ( pos == 8 ) { *ncp++ = ovalue; @@ -293,7 +293,7 @@ imageop_grey2grey2(self, args) pos = 0; ovalue = 0; for ( i=0; i < len; i++ ) { - ovalue |= (cp[i] & 0xc0) >> pos; + ovalue |= ((int)cp[i] & 0xc0) >> pos; pos += 2; if ( pos == 8 ) { *ncp++ = ovalue; |