0ad/source/lib/sysdep/os/win/wfirmware.cpp
2011-05-04 12:10:17 +00:00

48 lines
1.4 KiB
C++

#include "precompiled.h"
#include "lib/sysdep/os/win/wfirmware.h"
#include "lib/sysdep/os/win/wutil.h"
namespace wfirmware {
TableIds GetTableIDs(Provider provider)
{
WUTIL_FUNC(pEnumSystemFirmwareTables, UINT, (DWORD, PVOID, DWORD));
WUTIL_IMPORT_KERNEL32(EnumSystemFirmwareTables, pEnumSystemFirmwareTables);
if(!pEnumSystemFirmwareTables)
return TableIds();
const size_t tableIdsSize = pEnumSystemFirmwareTables(provider, 0, 0);
ENSURE(tableIdsSize != 0);
ENSURE(tableIdsSize % sizeof(TableId) == 0);
TableIds tableIDs(DivideRoundUp(tableIdsSize, sizeof(TableId)), 0);
const size_t bytesWritten = pEnumSystemFirmwareTables(provider, &tableIDs[0], (DWORD)tableIdsSize);
ENSURE(bytesWritten == tableIdsSize);
return tableIDs;
}
Table GetTable(Provider provider, TableId tableId)
{
WUTIL_FUNC(pGetSystemFirmwareTable, UINT, (DWORD, DWORD, PVOID, DWORD));
WUTIL_IMPORT_KERNEL32(GetSystemFirmwareTable, pGetSystemFirmwareTable);
if(!pGetSystemFirmwareTable)
return Table();
const size_t tableSize = pGetSystemFirmwareTable(provider, tableId, 0, 0);
if(tableSize == 0)
{
DEBUG_WARN_ERR(ERR::LOGIC);
return Table();
}
Table table(tableSize, 0);
const size_t bytesWritten = pGetSystemFirmwareTable(provider, tableId, &table[0], (DWORD)tableSize);
ENSURE(bytesWritten == tableSize);
return table;
}
} // namespace wfirmware