/// Reset everything to initial state
///
void init () {
if (m_stream) {
m_stream->Close ();
delete m_stream;
m_stream = NULL;
}
m_userBuf.clear ();
}
OIIO_PLUGIN_EXPORTS_END
bool
DPXInput::valid_file (const std::string &filename) const
{
InStream *stream = new InStream();
if (! stream)
return false;
bool ok = false;
if (stream->Open(filename.c_str())) {
dpx::Reader dpx;
dpx.SetInStream(stream);
ok = dpx.ReadHeader();
stream->Close();
}
delete stream;
return ok;
}
int main(int argc, char **argv)
{
int offset = 1;
bool write8bit = false;
//bool write8bit = true;
if (argc == 4 && strcmp(argv[1], "-8") == 0)
{
write8bit = true;
offset++;
}
else if (argc != 3)
{
Usage();
return 1;
}
// open the image
InStream img;
if (!img.Open(argv[offset]))
{
cout << "Unable to open file " << argv[1] << endl;
return 1;
}
dpx::Reader dpx;
dpx.SetInStream(&img);
if (!dpx.ReadHeader())
{
cout << "Unable to read header" << endl;
return 2;
}
TIFF *out;
out = TIFFOpen(argv[offset+1], "w");
if (out == NULL)
{
cout << "Unable to open output file" << endl;
return 3;
}
// data size, override if user specifies
dpx::DataSize size = dpx.header.ComponentDataSize(0);
int nob = dpx.header.ComponentByteCount(0);
if (write8bit)
{
size = dpx::kByte;
nob = 1;
}
cout << "Image Width " << dpx.header.Width() << " Height " <<
dpx.header.Height() << " component byte count " <<
dpx.header.ComponentByteCount(0) << endl;
// conversion
int format = PHOTOMETRIC_RGB;
int elementCount = 3;
if (dpx.header.ImageElementComponentCount(0) == 1) {
format = PHOTOMETRIC_MINISBLACK;
elementCount = 1;
}
TIFFSetField(out, TIFFTAG_IMAGEWIDTH, (uint32) dpx.header.Width());
TIFFSetField(out, TIFFTAG_IMAGELENGTH, (uint32) dpx.header.Height());
TIFFSetField(out, TIFFTAG_BITSPERSAMPLE, (uint32) nob * 8);
TIFFSetField(out, TIFFTAG_SAMPLESPERPIXEL, elementCount);
TIFFSetField(out, TIFFTAG_COMPRESSION, COMPRESSION_NONE);
TIFFSetField(out, TIFFTAG_ORIENTATION, ORIENTATION_TOPLEFT);
TIFFSetField(out, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG);
TIFFSetField(out, TIFFTAG_PHOTOMETRIC, format);
TIFFSetField(out, TIFFTAG_MINSAMPLEVALUE, 0);
int max = 0xff;
if (nob == 2)
max = 0xffff;
else
max = 0xffffffff;
TIFFSetField(out, TIFFTAG_MAXSAMPLEVALUE, max);
tdata_t buf = _TIFFmalloc(TIFFScanlineSize(out));
if (buf == NULL)
{
cout << "memory allocation error" << endl;
return 4;
}
Block block(0, 0, dpx.header.Width()-1, 0);
int y;
for (y = 0; y < dpx.header.Height(); y++)
{
block.y1 = y;
block.y2 = y;
if (dpx.ReadBlock(buf, size, block, dpx.header.ImageDescriptor(0)) == false)
{
cout << "unable to read line " << y << " with component data size " << size << endl;
return 5;
}
if (TIFFWriteScanline(out, buf, y, 0) < 0)
{
cout << "unable to write tiff scanline " << y << endl;
return 6;
}
}
_TIFFfree(buf);
img.Close();
TIFFClose(out);
return 0;
}
