| 414 |
|
scan2init(); |
| 415 |
|
yread = 0; |
| 416 |
|
for (r = 0; r < nrows; r++) { |
| 417 |
< |
ycent = (long)r*yres/nrows; |
| 417 |
> |
ycent = (r+.5)*yres/nrows; |
| 418 |
|
while (yread <= ycent+yrad) { |
| 419 |
|
if (yread < yres) { |
| 420 |
|
if (freadscan(scanin[yread%barsize], |
| 431 |
|
if (obarsize > 0) |
| 432 |
|
scan2sync(r); |
| 433 |
|
for (c = 0; c < ncols; c++) { |
| 434 |
< |
xcent = (long)c*xres/ncols; |
| 434 |
> |
xcent = (c+.5)*xres/ncols; |
| 435 |
|
if (thresh > FTINY) |
| 436 |
|
dothresh(xcent, ycent, c, r); |
| 437 |
|
else if (rad > FTINY) |
| 540 |
|
register int c; |
| 541 |
|
/* average input scanlines */ |
| 542 |
|
while (nextrow <= r+orad && nextrow < nrows) { |
| 543 |
< |
ybot = (long)nextrow*yres/nrows; |
| 543 |
> |
ybot = (nextrow+.5)*yres/nrows; |
| 544 |
|
for (c = 0; c < ncols; c++) { |
| 545 |
< |
dobox(ctmp, (int)((long)c*xres/ncols),ybot, c,nextrow); |
| 545 |
> |
dobox(ctmp, (int)((c+.5)*xres/ncols),ybot, c,nextrow); |
| 546 |
|
greybar[nextrow%obarsize][c] = (*ourbright)(ctmp); |
| 547 |
|
} |
| 548 |
|
/* and zero output scanline */ |
