oldloader.h File Reference

#include "saveload.h"
#include "../tile_type.h"

Go to the source code of this file.

Data Structures
struct	LoadgameState
struct	OldChunks

Macros
#define	OCL_SVAR(type, base, offset)   { type, 1, nullptr, [] (void *b) -> void * { return std::addressof(static_cast<base *>(b)->offset); }, nullptr }
#define	OCL_VAR(type, amount, pointer)   { type, amount, pointer, nullptr, nullptr }
#define	OCL_END()   { OC_END, 0, nullptr, nullptr, nullptr }
#define	OCL_CNULL(type, amount)   { OC_NULL | type, amount, nullptr, nullptr, nullptr }
#define	OCL_CCHUNK(type, amount, proc)   { OC_CHUNK | type, amount, nullptr, nullptr, proc }
#define	OCL_ASSERT(type, size)   { OC_ASSERT | type, 1, (void *)(size_t)size, nullptr, nullptr }
#define	OCL_NULL(amount)   OCL_CNULL((OldChunkType)0, amount)
#define	OCL_CHUNK(amount, proc)   OCL_CCHUNK((OldChunkType)0, amount, proc)

Typedefs
typedef bool	OldChunkProc(LoadgameState *ls, int num)
typedef void *	OffsetProc(void *base)

Enumerations
enum	OldChunkType {   OC_SIMPLE = 0, OC_NULL = 1, OC_CHUNK = 2, OC_ASSERT = 3,   OC_TTD = 1 << 4, OC_TTO = 1 << 5, OC_VAR_I8 = 1 << 8, OC_VAR_U8 = 2 << 8,   OC_VAR_I16 = 3 << 8, OC_VAR_U16 = 4 << 8, OC_VAR_I32 = 5 << 8, OC_VAR_U32 = 6 << 8,   OC_VAR_I64 = 7 << 8, OC_VAR_U64 = 8 << 8, OC_FILE_I8 = 1 << 16, OC_FILE_U8 = 2 << 16,   OC_FILE_I16 = 3 << 16, OC_FILE_U16 = 4 << 16, OC_FILE_I32 = 5 << 16, OC_FILE_U32 = 6 << 16,   OC_INT8 = OC_VAR_I8 | OC_FILE_I8, OC_UINT8 = OC_VAR_U8 | OC_FILE_U8, OC_INT16 = OC_VAR_I16 | OC_FILE_I16, OC_UINT16 = OC_VAR_U16 | OC_FILE_U16,   OC_INT32 = OC_VAR_I32 | OC_FILE_I32, OC_UINT32 = OC_VAR_U32 | OC_FILE_U32, OC_TILE = OC_VAR_U32 | OC_FILE_U16, OC_DEREFERENCE_POINTER = 1 << 31,   OC_END = 0 }

Functions
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...
bool	LoadTTDMain (LoadgameState *ls)
bool	LoadTTOMain (LoadgameState *ls)
uint16_t	ReadUint16 (LoadgameState *ls)
uint32_t	ReadUint32 (LoadgameState *ls)

Variables
static const uint	BUFFER_SIZE = 4096
static const uint	OLD_MAP_SIZE = 256
uint	_bump_assert_value

Detailed Description

Declarations of strctures and function used in loader of old savegames

Definition in file oldloader.h.

Enumeration Type Documentation

OldChunkType

enum OldChunkType

Enumerator
OC_TTD	chunk is valid ONLY for TTD savegames
OC_TTO	-//- TTO (default is neither of these)
OC_DEREFERENCE_POINTER	Dereference the pointer once before writing to it, so we do not have to use big static arrays.
OC_END	End of the whole chunk, all 32 bits set to zero.

Definition at line 35 of file oldloader.h.

Function Documentation

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().