cl_byte64 CL_ZipReader_Impl::deflate_read(void *data, cl_byte64 size, bool read_all)
{
zs.next_out = (Bytef *) data;
zs.avail_out = size;
// Continue feeding zlib data until we get our data:
while (zs.avail_out > 0)
{
// zlib needs more data:
if (zs.avail_in == 0 && compressed_pos < local_header.compressed_size)
{
// Read some compressed data:
int received_input = 0;
while (received_input < 16*1024)
{
received_input += input.receive(zbuffer, int(cl_min(16*1024, local_header.compressed_size - compressed_pos)), true);
if (compressed_pos + received_input == local_header.compressed_size) break;
}
compressed_pos += received_input;
zs.next_in = (Bytef *) zbuffer;
zs.avail_in = received_input;
}
// Decompress data:
int result = inflate(&zs, (compressed_pos == local_header.compressed_size) ? Z_FINISH : Z_NO_FLUSH);
if (result == Z_STREAM_END) break;
if (result == Z_NEED_DICT) throw CL_Exception("Zlib inflate wants a dictionary!");
if (result == Z_DATA_ERROR) throw CL_Exception("Zip data stream is corrupted");
if (result == Z_STREAM_ERROR) throw CL_Exception("Zip stream structure was inconsistent!");
if (result == Z_MEM_ERROR) throw CL_Exception("Zlib did not have enough memory to decompress file!");
if (result == Z_BUF_ERROR) throw CL_Exception("Not enough data in buffer when Z_FINISH was used");
if (result != Z_OK) throw CL_Exception("Zlib inflate failed while decompressing zip file!");
}
return size - zs.avail_out;
}
CL_XMLTokenizer::CL_XMLTokenizer(CL_IODevice &input) : impl(new CL_XMLTokenizer_Generic)
{
impl->input = input;
impl->size = input.get_size();
impl->pos = 0;
CL_DataBuffer buffer(impl->size);
input.receive(buffer.get_data(), buffer.get_size(), true);
CL_StringHelp::BOMType bom_type = CL_StringHelp::detect_bom(buffer.get_data(), buffer.get_size());
switch (bom_type)
{
default:
case CL_StringHelp::bom_none:
impl->data = CL_StringHelp::utf8_to_text(CL_StringRef8(buffer.get_data(), buffer.get_size(), false));
break;
case CL_StringHelp::bom_utf32_be:
case CL_StringHelp::bom_utf32_le:
throw CL_Exception("UTF-16 XML files not supported yet");
break;
case CL_StringHelp::bom_utf16_be:
case CL_StringHelp::bom_utf16_le:
throw CL_Exception("UTF-32 XML files not supported yet");
break;
case CL_StringHelp::bom_utf8:
impl->data = CL_StringHelp::utf8_to_text(CL_StringRef8(buffer.get_data()+3, buffer.get_size()-3, false));
break;
}
}
