BitWriter.cc
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#include <qpdf/BitWriter.hh>
// See comments in bits.cc
#define BITS_WRITE 1
#include "bits.icc"
BitWriter::BitWriter(Pipeline* pl) :
pl(pl),
ch(0),
bit_offset(7)
{
}
void
BitWriter::writeBits(unsigned long long val, size_t bits)
{
write_bits(this->ch, this->bit_offset, val, bits, this->pl);
}
void
BitWriter::writeBitsSigned(long long val, size_t bits)
{
unsigned long long uval = 0;
if (val < 0)
{
uval = (1ULL << bits) + static_cast<unsigned long long>(val);
}
else
{
uval = static_cast<unsigned long long>(val);
}
writeBits(uval, bits);
}
void
BitWriter::writeBitsInt(int val, size_t bits)
{
writeBits(static_cast<unsigned long long>(val), bits);
}
void
BitWriter::flush()
{
if (bit_offset < 7)
{
size_t bits_to_write = bit_offset + 1;
write_bits(this->ch, this->bit_offset, 0, bits_to_write, this->pl);
}
}