oldloader.cpp File Reference

#include "../stdafx.h"
#include "../debug.h"
#include "../strings_type.h"
#include "../string_func.h"
#include "../settings_type.h"
#include "../fileio_func.h"
#include "table/strings.h"
#include "saveload_internal.h"
#include "oldloader.h"
#include "../safeguards.h"

Go to the source code of this file.

Typedefs
typedef bool	LoadOldMainProc(LoadgameState *ls)

Functions
static OldChunkType	GetOldChunkType (OldChunkType type)
static OldChunkType	GetOldChunkVarType (OldChunkType type)
static OldChunkType	GetOldChunkFileType (OldChunkType type)
static uint8_t	CalcOldVarLen (OldChunkType type)
	Return expected size in bytes of a OldChunkType. More...
static uint8_t	ReadByteFromFile (LoadgameState *ls)
	Reads a byte from a file (do not call yourself, use ReadByte()) More...
uint8_t	ReadByte (LoadgameState *ls)
	Reads a byte from the buffer and decompress if needed. More...
bool	LoadChunk (LoadgameState *ls, void *base, const OldChunks *chunks)
	Loads a chunk from the old savegame. More...
static void	InitLoading (LoadgameState *ls)
	Initialize some data before reading. More...
static bool	VerifyOldNameChecksum (char *title, uint len)
	Verifies the title has a valid checksum. More...
static std::tuple< SavegameType, std::string >	DetermineOldSavegameTypeAndName (FileHandle &f)
bool	LoadOldSaveGame (const std::string &file)
std::string	GetOldSaveGameName (const std::string &file)

Variables
static const int	TTO_HEADER_SIZE = 41
static const int	TTD_HEADER_SIZE = 49
static const int	HEADER_CHECKSUM_SIZE = 2
	The size of the checksum in the name/header of the TTD/TTO savegames.
uint32_t	_bump_assert_value

Detailed Description

Functions for handling of TTO/TTD/TTDP savegames.

Definition in file oldloader.cpp.

Function Documentation

CalcOldVarLen()

static uint8_t CalcOldVarLen ( OldChunkType  type )

inlinestatic

Return expected size in bytes of a OldChunkType.

Parameters

type	OldChunkType to get size of.

Returns

size of type in bytes.

Definition at line 41 of file oldloader.cpp.

InitLoading()

static void InitLoading ( LoadgameState *  ls )

static

Initialize some data before reading.

Definition at line 199 of file oldloader.cpp.

LoadChunk()

bool LoadChunk	(	LoadgameState *	ls,
		void *	base,
		const OldChunks *	chunks
	)

Loads a chunk from the old savegame.

Definition at line 122 of file oldloader.cpp.

References _savegame_type, OC_DEREFERENCE_POINTER, OC_END, OC_TTD, OC_TTO, SGT_TTO, and OldChunks::type.

ReadByte()

uint8_t ReadByte

(

LoadgameState *

ls

)

Reads a byte from the buffer and decompress if needed.

Definition at line 88 of file oldloader.cpp.

References ReadByteFromFile().

ReadByteFromFile()

static uint8_t ReadByteFromFile ( LoadgameState *  ls )

static

Reads a byte from a file (do not call yourself, use ReadByte())

Definition at line 61 of file oldloader.cpp.

Referenced by ReadByte().

VerifyOldNameChecksum()

static bool VerifyOldNameChecksum ( char *  title, uint  len  )

static

Verifies the title has a valid checksum.

Parameters

title	title and checksum
len	the length of the title to read/checksum

Returns

true iff the title is valid

Definition at line 222 of file oldloader.cpp.