bool
TIFFOutput::write_scanline (int y, int z, TypeDesc format,
const void *data, stride_t xstride)
{
m_spec.auto_stride (xstride, format, spec().nchannels);
const void *origdata = data;
data = to_native_scanline (format, data, xstride, m_scratch,
m_dither, y, z);
y -= m_spec.y;
if (m_planarconfig == PLANARCONFIG_SEPARATE) {
// Convert from contiguous (RGBRGBRGB) to separate (RRRGGGBBB)
int plane_bytes = m_spec.width * m_spec.format.size();
std::vector<unsigned char> scratch2 (m_spec.scanline_bytes());
std::swap (m_scratch, scratch2);
m_scratch.resize (m_spec.scanline_bytes());
contig_to_separate (m_spec.width, (const char *)data, (char *)&m_scratch[0]);
for (int c = 0; c < m_spec.nchannels; ++c) {
if (TIFFWriteScanline (m_tif, (tdata_t)&m_scratch[plane_bytes*c], y, c) < 0) {
std::string err = oiio_tiff_last_error();
error ("TIFFWriteScanline failed writing line y=%d,z=%d (%s)",
y, z, err.size() ? err.c_str() : "unknown error");
return false;
}
}
} else {
// No contig->separate is necessary. But we still use scratch
// space since TIFFWriteScanline is destructive when
// TIFFTAG_PREDICTOR is used.
if (data == origdata) {
m_scratch.assign ((unsigned char *)data,
(unsigned char *)data+m_spec.scanline_bytes());
data = &m_scratch[0];
}
if (TIFFWriteScanline (m_tif, (tdata_t)data, y) < 0) {
std::string err = oiio_tiff_last_error();
error ("TIFFWriteScanline failed writing line y=%d,z=%d (%s)",
y, z, err.size() ? err.c_str() : "unknown error");
return false;
}
}
// Should we checkpoint? Only if we have enough scanlines and enough
// time has passed (or if using JPEG compression, for which it seems
// necessary).
++m_checkpointItems;
if ((m_checkpointTimer() > DEFAULT_CHECKPOINT_INTERVAL_SECONDS ||
m_compression == COMPRESSION_JPEG)
&& m_checkpointItems >= MIN_SCANLINES_OR_TILES_PER_CHECKPOINT) {
TIFFCheckpointDirectory (m_tif);
m_checkpointTimer.lap();
m_checkpointItems = 0;
}
return true;
}
bool
TIFFOutput::write_scanline (int y, int z, TypeDesc format,
const void *data, stride_t xstride)
{
m_spec.auto_stride (xstride, format, spec().nchannels);
const void *origdata = data;
data = to_native_scanline (format, data, xstride, m_scratch,
m_dither, y, z);
// Handle weird photometric/color spaces
if (m_photometric == PHOTOMETRIC_SEPARATED)
data = convert_to_cmyk (spec().width, data);
// Handle weird bit depths
if (spec().format.size()*8 != m_bitspersample) {
// Move to scratch area if not already there
imagesize_t nbytes = spec().scanline_bytes();
int nvals = spec().width * m_outputchans;
if (data == origdata) {
m_scratch.assign ((unsigned char *)data,
(unsigned char *)data+nbytes);
data = &m_scratch[0];
}
if (spec().format == TypeDesc::UINT16 && m_bitspersample == 10) {
convert_pack_bits<unsigned short, 10> ((unsigned short *)data, nvals);
} else if (spec().format == TypeDesc::UINT16 && m_bitspersample == 12) {
convert_pack_bits<unsigned short, 12> ((unsigned short *)data, nvals);
} else if (spec().format == TypeDesc::UINT8 && m_bitspersample == 4) {
convert_pack_bits<unsigned char, 4> ((unsigned char *)data, nvals);
} else if (spec().format == TypeDesc::UINT8 && m_bitspersample == 2) {
convert_pack_bits<unsigned char, 2> ((unsigned char *)data, nvals);
} else {
ASSERT (0 && "unsupported bit conversion -- shouldn't reach here");
}
}
y -= m_spec.y;
if (m_planarconfig == PLANARCONFIG_SEPARATE) {
// Convert from contiguous (RGBRGBRGB) to separate (RRRGGGBBB)
int plane_bytes = m_spec.width * m_spec.format.size();
std::vector<unsigned char> scratch2 (m_spec.scanline_bytes());
std::swap (m_scratch, scratch2);
m_scratch.resize (m_spec.scanline_bytes());
contig_to_separate (m_spec.width, (const char *)data, (char *)&m_scratch[0]);
for (int c = 0; c < m_spec.nchannels; ++c) {
if (TIFFWriteScanline (m_tif, (tdata_t)&m_scratch[plane_bytes*c], y, c) < 0) {
std::string err = oiio_tiff_last_error();
error ("TIFFWriteScanline failed writing line y=%d,z=%d (%s)",
y, z, err.size() ? err.c_str() : "unknown error");
return false;
}
}
} else {
// No contig->separate is necessary. But we still use scratch
// space since TIFFWriteScanline is destructive when
// TIFFTAG_PREDICTOR is used.
if (data == origdata) {
m_scratch.assign ((unsigned char *)data,
(unsigned char *)data+m_spec.scanline_bytes());
data = &m_scratch[0];
}
if (TIFFWriteScanline (m_tif, (tdata_t)data, y) < 0) {
std::string err = oiio_tiff_last_error();
error ("TIFFWriteScanline failed writing line y=%d,z=%d (%s)",
y, z, err.size() ? err.c_str() : "unknown error");
return false;
}
}
// Should we checkpoint? Only if we have enough scanlines and enough
// time has passed (or if using JPEG compression, for which it seems
// necessary).
++m_checkpointItems;
if ((m_checkpointTimer() > DEFAULT_CHECKPOINT_INTERVAL_SECONDS ||
m_compression == COMPRESSION_JPEG)
&& m_checkpointItems >= MIN_SCANLINES_OR_TILES_PER_CHECKPOINT) {
TIFFCheckpointDirectory (m_tif);
m_checkpointTimer.lap();
m_checkpointItems = 0;
}
return true;
}