thorsten /
phpMyFAQ
| @@ 381-384 (lines=4) @@ | ||
| 378 | $ddata[$k][$j] = (($row[$i] + $row_left) & 0xff); |
|
| 379 | break; |
|
| 380 | } |
|
| 381 | case 12: { // PNG prediction (on encoding, PNG Up on all rows) |
|
| 382 | $ddata[$k][$j] = (($row[$i] + $row_up) & 0xff); |
|
| 383 | break; |
|
| 384 | } |
|
| 385 | case 13: { // PNG prediction (on encoding, PNG Average on all rows) |
|
| 386 | $ddata[$k][$j] = (($row[$i] + (($row_left + $row_up) / 2)) & 0xff); |
|
| 387 | break; |
|
| @@ 385-388 (lines=4) @@ | ||
| 382 | $ddata[$k][$j] = (($row[$i] + $row_up) & 0xff); |
|
| 383 | break; |
|
| 384 | } |
|
| 385 | case 13: { // PNG prediction (on encoding, PNG Average on all rows) |
|
| 386 | $ddata[$k][$j] = (($row[$i] + (($row_left + $row_up) / 2)) & 0xff); |
|
| 387 | break; |
|
| 388 | } |
|
| 389 | case 14: { // PNG prediction (on encoding, PNG Paeth on all rows) |
|
| 390 | // initial estimate |
|
| 391 | $p = ($row_left + $row_up - $row_upleft); |
|
| @@ 403-406 (lines=4) @@ | ||
| 400 | $ddata[$k][$j] = (($row[$i] + $row_left) & 0xff); |
|
| 401 | break; |
|
| 402 | } |
|
| 403 | case $pb: { |
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| 404 | $ddata[$k][$j] = (($row[$i] + $row_up) & 0xff); |
|
| 405 | break; |
|
| 406 | } |
|
| 407 | case $pc: { |
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| 408 | $ddata[$k][$j] = (($row[$i] + $row_upleft) & 0xff); |
|
| 409 | break; |
|
