Declarations of strctures and function used in loader of old savegames. More...

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

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.

bool	LoadChunk (LoadgameState ls, void base, const OldChunks *chunks)
	Loads a chunk from the old savegame.

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.

Macro Definition Documentation

◆ OCL_ASSERT

#define OCL_ASSERT	(	type,
		size
	)	{ OC_ASSERT \| type, 1, (void *)(size_t)size, nullptr, nullptr }

Definition at line 129 of file oldloader.h.

◆ OCL_CCHUNK

#define OCL_CCHUNK	(	type,
		amount,
		proc
	)	{ OC_CHUNK \| type, amount, nullptr, nullptr, proc }

Definition at line 128 of file oldloader.h.

◆ OCL_CHUNK

#define OCL_CHUNK	(	amount,
		proc
	)	OCL_CCHUNK((OldChunkType)0, amount, proc)

Definition at line 131 of file oldloader.h.

◆ OCL_CNULL

#define OCL_CNULL	(	type,
		amount
	)	{ OC_NULL \| type, amount, nullptr, nullptr, nullptr }

Definition at line 127 of file oldloader.h.

◆ OCL_END

#define OCL_END ( ) { OC_END, 0, nullptr, nullptr, nullptr }

Definition at line 126 of file oldloader.h.

◆ OCL_NULL

#define OCL_NULL ( amount ) OCL_CNULL((OldChunkType)0, amount)

Definition at line 130 of file oldloader.h.

◆ OCL_SVAR

#define OCL_SVAR	(	type,
		base,
		offset
	)	{ type, 1, nullptr, [] (void b) -> void { return std::addressof(static_cast<base *>(b)->offset); }, nullptr }

Definition at line 124 of file oldloader.h.

◆ OCL_VAR

#define OCL_VAR	(	type,
		amount,
		pointer
	)	{ type, amount, pointer, nullptr, nullptr }

Definition at line 125 of file oldloader.h.

Typedef Documentation

◆ OffsetProc

typedef void * OffsetProc(void *base)

Definition at line 85 of file oldloader.h.

◆ OldChunkProc

typedef bool OldChunkProc(LoadgameState *ls, int num)

Definition at line 84 of 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, CalcOldVarLen(), Debug, GB(), OC_DEREFERENCE_POINTER, OC_END, OC_TTD, OC_TTO, ReadByte(), SGT_TTO, and OldChunks::type.

◆ LoadTTDMain()

bool LoadTTDMain ( LoadgameState * ls )

Definition at line 1771 of file oldloader_sl.cpp.

◆ LoadTTOMain()

bool LoadTTOMain ( LoadgameState * ls )

Definition at line 1813 of file oldloader_sl.cpp.

◆ 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().

Referenced by LoadChunk().

◆ ReadUint16()

uint16_t ReadUint16 ( LoadgameState * ls )

inline

Definition at line 103 of file oldloader.h.

◆ ReadUint32()

uint32_t ReadUint32 ( LoadgameState * ls )

inline

Definition at line 109 of file oldloader.h.

Variable Documentation

◆ _bump_assert_value

uint _bump_assert_value

extern

Definition at line 30 of file oldloader.cpp.

◆ BUFFER_SIZE

const uint BUFFER_SIZE = 4096

static

Definition at line 16 of file oldloader.h.

◆ OLD_MAP_SIZE

const uint OLD_MAP_SIZE = 256