int
TIFFReadScanline(TIFF* tif, tdata_t buf, uint32 row, tsample_t sample)
{
int e;
if (!TIFFCheckRead(tif, 0))
return (-1);
if (e = TIFFSeek(tif, row, sample)) {
/*
* Decompress desired row into user buffer.
*/
e = (*tif->tif_decoderow)
(tif, buf, tif->tif_scanlinesize, sample);
tif->tif_row++;
if (e)
(*tif->tif_postdecode)(tif, buf, tif->tif_scanlinesize);
}
return (e ? 1 : -1);
}
int
TIFFReadScanline(TIFF* tif, tdata_t buf, uint32 row, tsample_t sample)
{
int e;
if (!TIFFCheckRead(tif, 0))
return (-1);
if( (e = TIFFSeek(tif, row, sample)) != 0) {
/*
* Decompress desired row into user buffer.
*/
e = (*tif->tif_decoderow)
(tif, (tidata_t) buf, tif->tif_scanlinesize, sample);
/* we are now poised at the beginning of the next row */
tif->tif_row = row + 1;
if (e)
(*tif->tif_postdecode)(tif, (tidata_t) buf,
tif->tif_scanlinesize);
}
return (e > 0 ? 1 : -1);
}