/*
* Encode a rectangular chunk of pixels. We break it up
* into row-sized pieces to insure that encoded runs do
* not span rows. Otherwise, there can be problems with
* the decoder if data is read, for example, by scanlines
* when it was encoded by strips.
*/
static int
PackBitsEncodeChunk(TIFF* tif, tidata_t bp, tsize_t cc, tsample_t s)
{
tsize_t rowsize = (tsize_t) tif->tif_data;
assert(rowsize > 0);
#ifdef YCBCR_SUPPORT
/*
* YCBCR data isn't really separable into rows, so we
* might as well encode the whole tile/strip as one chunk.
*/
if( tif->tif_dir.td_photometric == PHOTOMETRIC_YCBCR )
rowsize = (tsize_t) tif->tif_data;
#endif
while ((long)cc > 0) {
int chunk = rowsize;
if( cc < chunk )
chunk = cc;
if (PackBitsEncode(tif, bp, chunk, s) < 0)
return (-1);
bp += chunk;
cc -= chunk;
}
return (1);
}
/*
* Encode a rectangular chunk of pixels. We break it up
* into row-sized pieces to insure that encoded runs do
* not span rows. Otherwise, there can be problems with
* the decoder if data is read, for example, by scanlines
* when it was encoded by strips.
*/
static int
PackBitsEncodeChunk(TIFF* tif, tidata_t bp, tsize_t cc, tsample_t s)
{
tsize_t rowsize = (tsize_t) tif->tif_data;
assert(rowsize > 0);
while ((long)cc > 0) {
if (PackBitsEncode(tif, bp, rowsize, s) < 0)
return (-1);
bp += rowsize;
cc -= rowsize;
}
return (1);
}
/*
* Encode a rectangular chunk of pixels. We break it up
* into row-sized pieces to insure that encoded runs do
* not span rows. Otherwise, there can be problems with
* the decoder if data is read, for example, by scanlines
* when it was encoded by strips.
*/
static int
PackBitsEncodeChunk(TIFF* tif, uint8* bp, tmsize_t cc, uint16 s)
{
tmsize_t rowsize = *(tmsize_t*)tif->tif_data;
while (cc > 0) {
tmsize_t chunk = rowsize;
if( cc < chunk )
chunk = cc;
if (PackBitsEncode(tif, bp, chunk, s) < 0)
return (-1);
bp += chunk;
cc -= chunk;
}
return (1);
}
/*
* Encode a rectangular chunk of pixels. We break it up
* into row-sized pieces to insure that encoded runs do
* not span rows. Otherwise, there can be problems with
* the decoder if data is read, for example, by scanlines
* when it was encoded by strips.
*/
static int
PackBitsEncodeChunk(TIFF* tif, tidata_t bp, tsize_t cc, tsample_t s)
{
tsize_t rowsize = *(tsize_t*)tif->tif_data;
while ((long)cc > 0) {
int chunk = rowsize;
if( cc < chunk )
chunk = cc;
if (PackBitsEncode(tif, bp, chunk, s) < 0)
return (-1);
bp += chunk;
cc -= chunk;
}
return (1);
}