00001
00002
00003
00004
00005
00006
00007
00008
00009
00012 #ifndef SAVELOAD_H
00013 #define SAVELOAD_H
00014
00015 #include "../fileio_type.h"
00016 #include "../strings_type.h"
00017
00019 enum SaveOrLoadResult {
00020 SL_OK = 0,
00021 SL_ERROR = 1,
00022 SL_REINIT = 2,
00023 };
00024
00026 enum SaveOrLoadMode {
00027 SL_INVALID = -1,
00028 SL_LOAD = 0,
00029 SL_SAVE = 1,
00030 SL_OLD_LOAD = 2,
00031 SL_PNG = 3,
00032 SL_BMP = 4,
00033 SL_LOAD_CHECK = 5,
00034 };
00035
00037 enum SavegameType {
00038 SGT_TTD,
00039 SGT_TTDP1,
00040 SGT_TTDP2,
00041 SGT_OTTD,
00042 SGT_TTO,
00043 SGT_INVALID = 0xFF,
00044 };
00045
00046 void GenerateDefaultSaveName(char *buf, const char *last);
00047 void SetSaveLoadError(uint16 str);
00048 const char *GetSaveLoadErrorString();
00049 SaveOrLoadResult SaveOrLoad(const char *filename, int mode, Subdirectory sb, bool threaded = true);
00050 void WaitTillSaved();
00051 void ProcessAsyncSaveFinish();
00052 void DoExitSave();
00053
00054 SaveOrLoadResult SaveWithFilter(struct SaveFilter *writer, bool threaded);
00055 SaveOrLoadResult LoadWithFilter(struct LoadFilter *reader);
00056
00057 typedef void ChunkSaveLoadProc();
00058 typedef void AutolengthProc(void *arg);
00059
00061 struct ChunkHandler {
00062 uint32 id;
00063 ChunkSaveLoadProc *save_proc;
00064 ChunkSaveLoadProc *load_proc;
00065 ChunkSaveLoadProc *ptrs_proc;
00066 ChunkSaveLoadProc *load_check_proc;
00067 uint32 flags;
00068 };
00069
00070 struct NullStruct {
00071 byte null;
00072 };
00073
00075 enum SLRefType {
00076 REF_ORDER = 0,
00077 REF_VEHICLE = 1,
00078 REF_STATION = 2,
00079 REF_TOWN = 3,
00080 REF_VEHICLE_OLD = 4,
00081 REF_ROADSTOPS = 5,
00082 REF_ENGINE_RENEWS = 6,
00083 REF_CARGO_PACKET = 7,
00084 REF_ORDERLIST = 8,
00085 REF_STORAGE = 9,
00086 REF_LINK_GRAPH = 10,
00087 REF_LINK_GRAPH_JOB = 11,
00088 };
00089
00091 #define SL_MAX_VERSION UINT16_MAX
00092
00094 enum ChunkType {
00095 CH_RIFF = 0,
00096 CH_ARRAY = 1,
00097 CH_SPARSE_ARRAY = 2,
00098 CH_TYPE_MASK = 3,
00099 CH_LAST = 8,
00100 CH_AUTO_LENGTH = 16,
00101 };
00102
00111 enum VarTypes {
00112
00113 SLE_FILE_I8 = 0,
00114 SLE_FILE_U8 = 1,
00115 SLE_FILE_I16 = 2,
00116 SLE_FILE_U16 = 3,
00117 SLE_FILE_I32 = 4,
00118 SLE_FILE_U32 = 5,
00119 SLE_FILE_I64 = 6,
00120 SLE_FILE_U64 = 7,
00121 SLE_FILE_STRINGID = 8,
00122 SLE_FILE_STRING = 9,
00123
00124
00125
00126 SLE_VAR_BL = 0 << 4,
00127 SLE_VAR_I8 = 1 << 4,
00128 SLE_VAR_U8 = 2 << 4,
00129 SLE_VAR_I16 = 3 << 4,
00130 SLE_VAR_U16 = 4 << 4,
00131 SLE_VAR_I32 = 5 << 4,
00132 SLE_VAR_U32 = 6 << 4,
00133 SLE_VAR_I64 = 7 << 4,
00134 SLE_VAR_U64 = 8 << 4,
00135 SLE_VAR_NULL = 9 << 4,
00136 SLE_VAR_STRB = 10 << 4,
00137 SLE_VAR_STRBQ = 11 << 4,
00138 SLE_VAR_STR = 12 << 4,
00139 SLE_VAR_STRQ = 13 << 4,
00140 SLE_VAR_NAME = 14 << 4,
00141
00142
00143
00144 SLE_VAR_CHAR = SLE_VAR_I8,
00145
00146
00147
00148
00149 SLE_BOOL = SLE_FILE_I8 | SLE_VAR_BL,
00150 SLE_INT8 = SLE_FILE_I8 | SLE_VAR_I8,
00151 SLE_UINT8 = SLE_FILE_U8 | SLE_VAR_U8,
00152 SLE_INT16 = SLE_FILE_I16 | SLE_VAR_I16,
00153 SLE_UINT16 = SLE_FILE_U16 | SLE_VAR_U16,
00154 SLE_INT32 = SLE_FILE_I32 | SLE_VAR_I32,
00155 SLE_UINT32 = SLE_FILE_U32 | SLE_VAR_U32,
00156 SLE_INT64 = SLE_FILE_I64 | SLE_VAR_I64,
00157 SLE_UINT64 = SLE_FILE_U64 | SLE_VAR_U64,
00158 SLE_CHAR = SLE_FILE_I8 | SLE_VAR_CHAR,
00159 SLE_STRINGID = SLE_FILE_STRINGID | SLE_VAR_U16,
00160 SLE_STRINGBUF = SLE_FILE_STRING | SLE_VAR_STRB,
00161 SLE_STRINGBQUOTE = SLE_FILE_STRING | SLE_VAR_STRBQ,
00162 SLE_STRING = SLE_FILE_STRING | SLE_VAR_STR,
00163 SLE_STRINGQUOTE = SLE_FILE_STRING | SLE_VAR_STRQ,
00164 SLE_NAME = SLE_FILE_STRINGID | SLE_VAR_NAME,
00165
00166
00167 SLE_UINT = SLE_UINT32,
00168 SLE_INT = SLE_INT32,
00169 SLE_STRB = SLE_STRINGBUF,
00170 SLE_STRBQ = SLE_STRINGBQUOTE,
00171 SLE_STR = SLE_STRING,
00172 SLE_STRQ = SLE_STRINGQUOTE,
00173
00174
00175
00176 SLF_NOT_IN_SAVE = 1 << 8,
00177 SLF_NOT_IN_CONFIG = 1 << 9,
00178 SLF_NO_NETWORK_SYNC = 1 << 10,
00179 SLF_ALLOW_CONTROL = 1 << 11,
00180 SLF_ALLOW_NEWLINE = 1 << 12,
00181
00182 };
00183
00184 typedef uint32 VarType;
00185
00187 enum SaveLoadTypes {
00188 SL_VAR = 0,
00189 SL_REF = 1,
00190 SL_ARR = 2,
00191 SL_STR = 3,
00192 SL_LST = 4,
00193
00194 SL_WRITEBYTE = 8,
00195 SL_VEH_INCLUDE = 9,
00196 SL_ST_INCLUDE = 10,
00197 SL_END = 15
00198 };
00199
00200 typedef byte SaveLoadType;
00201
00203 struct SaveLoad {
00204 bool global;
00205 SaveLoadType cmd;
00206 VarType conv;
00207 uint16 length;
00208 uint16 version_from;
00209 uint16 version_to;
00210
00211
00212
00213
00214 void *address;
00215 };
00216
00218 typedef SaveLoad SaveLoadGlobVarList;
00219
00230 #define SLE_GENERAL(cmd, base, variable, type, length, from, to) {false, cmd, type, length, from, to, (void*)cpp_offsetof(base, variable)}
00231
00240 #define SLE_CONDVAR(base, variable, type, from, to) SLE_GENERAL(SL_VAR, base, variable, type, 0, from, to)
00241
00250 #define SLE_CONDREF(base, variable, type, from, to) SLE_GENERAL(SL_REF, base, variable, type, 0, from, to)
00251
00261 #define SLE_CONDARR(base, variable, type, length, from, to) SLE_GENERAL(SL_ARR, base, variable, type, length, from, to)
00262
00272 #define SLE_CONDSTR(base, variable, type, length, from, to) SLE_GENERAL(SL_STR, base, variable, type, length, from, to)
00273
00282 #define SLE_CONDLST(base, variable, type, from, to) SLE_GENERAL(SL_LST, base, variable, type, 0, from, to)
00283
00290 #define SLE_VAR(base, variable, type) SLE_CONDVAR(base, variable, type, 0, SL_MAX_VERSION)
00291
00298 #define SLE_REF(base, variable, type) SLE_CONDREF(base, variable, type, 0, SL_MAX_VERSION)
00299
00307 #define SLE_ARR(base, variable, type, length) SLE_CONDARR(base, variable, type, length, 0, SL_MAX_VERSION)
00308
00316 #define SLE_STR(base, variable, type, length) SLE_CONDSTR(base, variable, type, length, 0, SL_MAX_VERSION)
00317
00324 #define SLE_LST(base, variable, type) SLE_CONDLST(base, variable, type, 0, SL_MAX_VERSION)
00325
00330 #define SLE_NULL(length) SLE_CONDNULL(length, 0, SL_MAX_VERSION)
00331
00338 #define SLE_CONDNULL(length, from, to) SLE_CONDARR(NullStruct, null, SLE_FILE_U8 | SLE_VAR_NULL | SLF_NOT_IN_CONFIG, length, from, to)
00339
00341 #define SLE_WRITEBYTE(base, variable, value) SLE_GENERAL(SL_WRITEBYTE, base, variable, 0, 0, value, value)
00342
00343 #define SLE_VEH_INCLUDE() {false, SL_VEH_INCLUDE, 0, 0, 0, SL_MAX_VERSION, NULL}
00344 #define SLE_ST_INCLUDE() {false, SL_ST_INCLUDE, 0, 0, 0, SL_MAX_VERSION, NULL}
00345
00347 #define SLE_END() {false, SL_END, 0, 0, 0, 0, NULL}
00348
00358 #define SLEG_GENERAL(cmd, variable, type, length, from, to) {true, cmd, type, length, from, to, (void*)&variable}
00359
00367 #define SLEG_CONDVAR(variable, type, from, to) SLEG_GENERAL(SL_VAR, variable, type, 0, from, to)
00368
00376 #define SLEG_CONDREF(variable, type, from, to) SLEG_GENERAL(SL_REF, variable, type, 0, from, to)
00377
00386 #define SLEG_CONDARR(variable, type, length, from, to) SLEG_GENERAL(SL_ARR, variable, type, length, from, to)
00387
00396 #define SLEG_CONDSTR(variable, type, length, from, to) SLEG_GENERAL(SL_STR, variable, type, length, from, to)
00397
00405 #define SLEG_CONDLST(variable, type, from, to) SLEG_GENERAL(SL_LST, variable, type, 0, from, to)
00406
00412 #define SLEG_VAR(variable, type) SLEG_CONDVAR(variable, type, 0, SL_MAX_VERSION)
00413
00419 #define SLEG_REF(variable, type) SLEG_CONDREF(variable, type, 0, SL_MAX_VERSION)
00420
00426 #define SLEG_ARR(variable, type) SLEG_CONDARR(variable, type, lengthof(variable), 0, SL_MAX_VERSION)
00427
00433 #define SLEG_STR(variable, type) SLEG_CONDSTR(variable, type, lengthof(variable), 0, SL_MAX_VERSION)
00434
00440 #define SLEG_LST(variable, type) SLEG_CONDLST(variable, type, 0, SL_MAX_VERSION)
00441
00448 #define SLEG_CONDNULL(length, from, to) {true, SL_ARR, SLE_FILE_U8 | SLE_VAR_NULL | SLF_NOT_IN_CONFIG, length, from, to, (void*)NULL}
00449
00451 #define SLEG_END() {true, SL_END, 0, 0, 0, 0, NULL}
00452
00459 static inline bool IsSavegameVersionBefore(uint16 major, byte minor = 0)
00460 {
00461 extern uint16 _sl_version;
00462 extern byte _sl_minor_version;
00463 return _sl_version < major || (minor > 0 && _sl_version == major && _sl_minor_version < minor);
00464 }
00465
00473 static inline bool SlIsObjectCurrentlyValid(uint16 version_from, uint16 version_to)
00474 {
00475 extern const uint16 SAVEGAME_VERSION;
00476 if (SAVEGAME_VERSION < version_from || SAVEGAME_VERSION > version_to) return false;
00477
00478 return true;
00479 }
00480
00487 static inline VarType GetVarMemType(VarType type)
00488 {
00489 return type & 0xF0;
00490 }
00491
00498 static inline VarType GetVarFileType(VarType type)
00499 {
00500 return type & 0xF;
00501 }
00502
00508 static inline bool IsNumericType(VarType conv)
00509 {
00510 return GetVarMemType(conv) <= SLE_VAR_U64;
00511 }
00512
00519 static inline void *GetVariableAddress(const void *object, const SaveLoad *sld)
00520 {
00521 return const_cast<byte *>((const byte*)(sld->global ? NULL : object) + (ptrdiff_t)sld->address);
00522 }
00523
00524 int64 ReadValue(const void *ptr, VarType conv);
00525 void WriteValue(void *ptr, VarType conv, int64 val);
00526
00527 void SlSetArrayIndex(uint index);
00528 int SlIterateArray();
00529
00530 void SlAutolength(AutolengthProc *proc, void *arg);
00531 size_t SlGetFieldLength();
00532 void SlSetLength(size_t length);
00533 size_t SlCalcObjMemberLength(const void *object, const SaveLoad *sld);
00534 size_t SlCalcObjLength(const void *object, const SaveLoad *sld);
00535
00536 byte SlReadByte();
00537 void SlWriteByte(byte b);
00538
00539 void SlGlobList(const SaveLoadGlobVarList *sldg);
00540 void SlArray(void *array, size_t length, VarType conv);
00541 void SlObject(void *object, const SaveLoad *sld);
00542 bool SlObjectMember(void *object, const SaveLoad *sld);
00543 void NORETURN SlError(StringID string, const char *extra_msg = NULL);
00544 void NORETURN SlErrorCorrupt(const char *msg);
00545
00546 bool SaveloadCrashWithMissingNewGRFs();
00547
00548 extern char _savegame_format[8];
00549 extern bool _do_autosave;
00550
00551 #endif