RawImage PefDecoder::decodeRawInternal() {
vector<TiffIFD*> data = mRootIFD->getIFDsWithTag(STRIPOFFSETS);
if (data.empty())
ThrowRDE("PEF Decoder: No image data found");
TiffIFD* raw = data[0];
int compression = raw->getEntry(COMPRESSION)->getInt();
if (1 == compression) {
decodeUncompressed(raw, true);
return mRaw;
}
if (65535 != compression)
ThrowRDE("PEF Decoder: Unsupported compression");
TiffEntry *offsets = raw->getEntry(STRIPOFFSETS);
TiffEntry *counts = raw->getEntry(STRIPBYTECOUNTS);
if (offsets->count != 1) {
ThrowRDE("PEF Decoder: Multiple Strips found: %u", offsets->count);
}
if (counts->count != offsets->count) {
ThrowRDE("PEF Decoder: Byte count number does not match strip size: count:%u, strips:%u ", counts->count, offsets->count);
}
if (!mFile->isValid(offsets->getInt() + counts->getInt()))
ThrowRDE("PEF Decoder: Truncated file.");
uint32 width = raw->getEntry(IMAGEWIDTH)->getInt();
uint32 height = raw->getEntry(IMAGELENGTH)->getInt();
mRaw->dim = iPoint2D(width, height);
mRaw->createData();
try {
PentaxDecompressor l(mFile, mRaw);
l.decodePentax(mRootIFD, offsets->getInt(), counts->getInt());
} catch (IOException &e) {
errors.push_back(_strdup(e.what()));
// Let's ignore it, it may have delivered somewhat useful data.
}
return mRaw;
}
RawImage PefDecoder::decodeRawInternal() {
auto raw = mRootIFD->getIFDWithTag(STRIPOFFSETS);
int compression = raw->getEntry(COMPRESSION)->getU32();
if (1 == compression || compression == 32773) {
decodeUncompressed(raw, BitOrder_MSB);
return mRaw;
}
if (65535 != compression)
ThrowRDE("Unsupported compression");
TiffEntry *offsets = raw->getEntry(STRIPOFFSETS);
TiffEntry *counts = raw->getEntry(STRIPBYTECOUNTS);
if (offsets->count != 1) {
ThrowRDE("Multiple Strips found: %u", offsets->count);
}
if (counts->count != offsets->count) {
ThrowRDE(
"Byte count number does not match strip size: count:%u, strips:%u ",
counts->count, offsets->count);
}
if (!mFile->isValid(offsets->getU32(), counts->getU32()))
ThrowRDE("Truncated file.");
uint32 width = raw->getEntry(IMAGEWIDTH)->getU32();
uint32 height = raw->getEntry(IMAGELENGTH)->getU32();
mRaw->dim = iPoint2D(width, height);
mRaw->createData();
try {
PentaxDecompressor::decompress(
mRaw, ByteStream(mFile, offsets->getU32(), counts->getU32()),
getRootIFD());
} catch (IOException &e) {
mRaw->setError(e.what());
// Let's ignore it, it may have delivered somewhat useful data.
}
return mRaw;
}