demboyz/demboyz/demmessages/dem_stringtables.cpp

80 lines
2.3 KiB
C++

#include "dem_stringtables.h"
#include "demofile/demofile.h"
#include "netmessages/netcontants.h"
#include "sourcesdk/bitbuf.h"
static void StringTableEntry_BitRead(bf_read& bitbuf, DemMsg::Dem_StringTables::StringTableEntry* data)
{
using StringTableEntry = DemMsg::Dem_StringTables::StringTableEntry;
char entryName[StringTableEntry::ENTRYNAME_MAX_LENGTH];
bitbuf.ReadString(entryName, sizeof(entryName));
if (bitbuf.ReadOneBit() != 0)
{
const int32_t numBytes = bitbuf.ReadWord();
data->data.reset(numBytes);
bitbuf.ReadBytes(data->data.begin(), numBytes);
}
else
{
data->data.reset(0);
}
}
static void StringTable_BitRead(bf_read& bitbuf, DemMsg::Dem_StringTables::StringTable* data)
{
using StringTable = DemMsg::Dem_StringTables::StringTable;
using StringTableEntry = DemMsg::Dem_StringTables::StringTableEntry;
char tableName[StringTable::TABLENAME_MAX_LENGTH];
bitbuf.ReadString(tableName, sizeof(tableName));
data->tableName.assign(tableName);
data->entries.reset(bitbuf.ReadWord());
for (StringTableEntry& entry : data->entries)
{
StringTableEntry_BitRead(bitbuf, &entry);
}
if (bitbuf.ReadOneBit() != 0)
{
data->entriesClientSide.reset(bitbuf.ReadWord());
for (StringTableEntry& entry : data->entriesClientSide)
{
StringTableEntry_BitRead(bitbuf, &entry);
}
}
else
{
data->entriesClientSide.reset(0);
}
}
namespace DemHandlers
{
bool Dem_StringTables_FileRead_Internal(FileRead& demofile, DemMsg::Dem_StringTables* data)
{
using StringTable = DemMsg::Dem_StringTables::StringTable;
Array<uint8_t> buffer = demofile.ReadRawData(MAX_STRINGTABLE_DATA);
bf_read bitbuf(buffer.begin(), buffer.length());
data->stringtables.reset(bitbuf.ReadByte());
for (StringTable& table : data->stringtables)
{
StringTable_BitRead(bitbuf, &table);
}
// copy trailing bits for binary completeness
const unsigned int numBitsLeft = bitbuf.GetNumBitsLeft();
assert(numBitsLeft < 8);
data->numTrailingBits = numBitsLeft;
if (numBitsLeft > 0)
{
data->trailingBitsValue = bitbuf.ReadUBitLong(numBitsLeft);
}
return !bitbuf.IsOverflowed();
}
}