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59 lines
1.4 KiB
C++
59 lines
1.4 KiB
C++
8 years ago
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#include "orfimage_int.hpp"
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namespace Exiv2 {
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namespace Internal {
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OrfHeader::OrfHeader(ByteOrder byteOrder)
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: TiffHeaderBase(0x4f52, 8, byteOrder, 0x00000008),
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sig_(0x4f52)
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{
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}
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OrfHeader::~OrfHeader()
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{
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}
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bool OrfHeader::read(const byte* pData, uint32_t size)
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{
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if (size < 8) return false;
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if (pData[0] == 'I' && pData[0] == pData[1]) {
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setByteOrder(littleEndian);
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}
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else if (pData[0] == 'M' && pData[0] == pData[1]) {
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setByteOrder(bigEndian);
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}
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else {
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return false;
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}
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uint16_t sig = getUShort(pData + 2, byteOrder());
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if (tag() != sig && 0x5352 != sig) return false; // #658: Added 0x5352 "SR" for SP-560UZ
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sig_ = sig;
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setOffset(getULong(pData + 4, byteOrder()));
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return true;
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} // OrfHeader::read
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DataBuf OrfHeader::write() const
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{
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DataBuf buf(8);
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switch (byteOrder()) {
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case littleEndian:
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buf.pData_[0] = 'I';
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break;
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case bigEndian:
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buf.pData_[0] = 'M';
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break;
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case invalidByteOrder:
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assert(false);
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break;
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}
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buf.pData_[1] = buf.pData_[0];
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us2Data(buf.pData_ + 2, sig_, byteOrder());
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ul2Data(buf.pData_ + 4, 0x00000008, byteOrder());
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return buf;
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}
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}} // namespace Internal, Exiv2
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