static char *
readCommandLine (void) {
if (fillInputBuffer()) {
if (inputStart < inputLength) {
const char *newline = memchr(&inputBuffer[inputStart], '\n', inputLength-inputStart);
if (newline) {
char *string;
int stringLength = newline - inputBuffer;
inputCarriageReturn = 0;
if ((newline != inputBuffer) && (*(newline-1) == '\r')) {
inputCarriageReturn = 1;
stringLength -= 1;
}
string = makeString(inputBuffer, stringLength);
inputLength -= ++newline - inputBuffer;
memmove(inputBuffer, newline, inputLength);
inputStart = 0;
return string;
} else {
inputStart = inputLength;
}
} else if (inputEnd) {
char *string;
if (inputLength) {
string = makeString(inputBuffer, inputLength);
inputLength = 0;
inputStart = 0;
} else {
string = copyString("quit");
}
return string;
}
}
return NULL;
}
static void skipInputData(j_decompress_ptr cinfo, long num_bytes)
// Called by client when it wants to advance past some
// uninteresting data.
{
StreamedJPEGReader* src = (StreamedJPEGReader*) cinfo->client_data;
AssertISV(src, "StreamedJPEGReader::skipInputData - 'this' is missing!");
// According to jpeg docs, large skips are
// infrequent. So let's just do it the simple
// way.
if (num_bytes > 0)
{
while (num_bytes > (long) src->mSource.bytes_in_buffer)
{
num_bytes -= (long) src->mSource.bytes_in_buffer;
fillInputBuffer(cinfo);
}
// Handle remainder.
src->mSource.next_input_byte += (size_t) num_bytes;
src->mSource.bytes_in_buffer -= (size_t) num_bytes;
}
}
size_t libmaus2::lz::XzDecoder::read(
uint8_t *
#if defined(LIBMAUS2_HAVE_LZMA)
A
#endif
,
size_t
#if defined(LIBMAUS2_HAVE_LZMA)
s
#endif
)
{
size_t r = 0;
#if defined(LIBMAUS2_HAVE_LZMA)
while ( s )
{
// if output data buffer is empty
if ( pc == pe )
{
// try to fill the input buffer
if ( ! lstr.avail_in )
{
lstr.avail_in = fillInputBuffer();
lstr.next_in = Ainbuf.begin();
}
// still no data, end of the file
if ( ! lstr.avail_in )
{
s = 0;
if ( lastret != LZMA_STREAM_END )
{
libmaus2::exception::LibMausException lme;
lme.getStream() << "XzDecoder::read(): file is truncated" << std::endl;
lme.finish();
throw lme;
}
}
// we have data, try to decompress it
else
{
lstr.next_out = Aoutbuf.begin();
lstr.avail_out = Aoutbuf.size();
// call decompression
lzma_ret const ret = lzma_code(&lstr,LZMA_RUN);
lastret = ret;
pa = Aoutbuf.begin();
pc = Aoutbuf.begin();
pe = Aoutbuf.begin() + Aoutbuf.size() - lstr.avail_out;
switch ( ret )
{
/*
* nothing special
*/
case LZMA_OK:
{
break;
}
/*
* end of compressed stream. set up new decoder in case another compressed stream follows this one
*/
case LZMA_STREAM_END:
{
// move rest of input data to front of buffer
memmove(Ainbuf.begin(),lstr.next_in,lstr.avail_in);
size_t const g = lstr.avail_in;
lzma_end(&lstr);
initDecoder();
lstr.next_in = Ainbuf.begin();
lstr.avail_in = g;
break;
}
/*
* an actual error
*/
default:
{
libmaus2::exception::LibMausException lme;
lme.getStream() << "XzDecoder::read(): liblzma error " << ret << std::endl;
lme.finish();
throw lme;
break;
}
}
}
}
size_t const tocopy = std::min(s,static_cast<size_t>(pe-pc));
std::copy(pc,pc+tocopy,A);
A += tocopy;
s -= tocopy;
pc += tocopy;
r += tocopy;
}
#endif
return r;
}
