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1103 lines
45 KiB
C++
1103 lines
45 KiB
C++
/*
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* This file is part of OpenTTD.
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* OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
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* OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
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*/
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/** @file saveload.h Functions/types related to saving and loading games. */
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#ifndef SL_SAVELOAD_H
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#define SL_SAVELOAD_H
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#include "saveload_types.h"
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#include "../fileio_type.h"
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#include "../fios.h"
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#include "../strings_type.h"
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#include "../scope.h"
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#include "../core/ring_buffer.hpp"
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#include "../core/tinystring_type.hpp"
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#include "../core/strong_typedef_type.hpp"
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#include <stdarg.h>
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#include <vector>
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#include <array>
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#include <list>
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#include <string>
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#include <type_traits>
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/** Save or load result codes. */
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enum SaveOrLoadResult {
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SL_OK = 0, ///< completed successfully
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SL_ERROR = 1, ///< error that was caught before internal structures were modified
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SL_REINIT = 2, ///< error that was caught in the middle of updating game state, need to clear it. (can only happen during load)
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};
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/** Deals with the type of the savegame, independent of extension */
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struct FileToSaveLoad {
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SaveLoadOperation file_op; ///< File operation to perform.
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DetailedFileType detail_ftype; ///< Concrete file type (PNG, BMP, old save, etc).
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AbstractFileType abstract_ftype; ///< Abstract type of file (scenario, heightmap, etc).
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std::string name; ///< Name of the file.
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std::string title; ///< Internal name of the game.
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void SetMode(FiosType ft);
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void SetMode(SaveLoadOperation fop, AbstractFileType aft, DetailedFileType dft);
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void Set(const FiosItem &item);
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};
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/** Types of save games. */
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enum SavegameType {
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SGT_TTD, ///< TTD savegame (can be detected incorrectly)
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SGT_TTDP1, ///< TTDP savegame ( -//- ) (data at NW border)
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SGT_TTDP2, ///< TTDP savegame in new format (data at SE border)
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SGT_OTTD, ///< OTTD savegame
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SGT_TTO, ///< TTO savegame
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SGT_INVALID = 0xFF, ///< broken savegame (used internally)
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};
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enum SaveModeFlags : byte {
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SMF_NONE = 0,
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SMF_NET_SERVER = 1 << 0, ///< Network server save
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SMF_ZSTD_OK = 1 << 1, ///< Zstd OK
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SMF_SCENARIO = 1 << 2, ///< Scenario save
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};
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DECLARE_ENUM_AS_BIT_SET(SaveModeFlags);
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extern FileToSaveLoad _file_to_saveload;
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std::string GenerateDefaultSaveName();
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void SetSaveLoadError(StringID str);
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std::string GetSaveLoadErrorString();
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SaveOrLoadResult SaveOrLoad(const std::string &filename, SaveLoadOperation fop, DetailedFileType dft, Subdirectory sb, bool threaded = true, SaveModeFlags flags = SMF_NONE);
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void WaitTillSaved();
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void ProcessAsyncSaveFinish();
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void DoExitSave();
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void DoAutoOrNetsave(FiosNumberedSaveName &counter, bool threaded, FiosNumberedSaveName *lt_counter = nullptr);
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SaveOrLoadResult SaveWithFilter(std::shared_ptr<struct SaveFilter> writer, bool threaded, SaveModeFlags flags);
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SaveOrLoadResult LoadWithFilter(std::shared_ptr<struct LoadFilter> reader);
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bool IsNetworkServerSave();
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bool IsScenarioSave();
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typedef void ChunkSaveLoadProc();
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typedef void AutolengthProc(void *arg);
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void SlUnreachablePlaceholder();
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enum ChunkSaveLoadSpecialOp {
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CSLSO_PRE_LOAD,
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CSLSO_PRE_LOADCHECK,
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CSLSO_PRE_PTRS,
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CSLSO_PRE_NULL_PTRS,
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CSLSO_SHOULD_SAVE_CHUNK,
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};
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enum ChunkSaveLoadSpecialOpResult {
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CSLSOR_NONE,
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CSLSOR_LOAD_CHUNK_CONSUMED,
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CSLSOR_DONT_SAVE_CHUNK,
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CSLSOR_UPSTREAM_SAVE_CHUNK,
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CSLSOR_UPSTREAM_NULL_PTRS,
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};
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typedef ChunkSaveLoadSpecialOpResult ChunkSaveLoadSpecialProc(uint32_t, ChunkSaveLoadSpecialOp);
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/** Type of a chunk. */
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enum ChunkType {
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CH_RIFF = 0,
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CH_ARRAY = 1,
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CH_SPARSE_ARRAY = 2,
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CH_TABLE = 3,
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CH_SPARSE_TABLE = 4,
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CH_EXT_HDR = 15, ///< Extended chunk header
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CH_UNUSED = 0x80,
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};
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/** Handlers and description of chunk. */
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struct ChunkHandler {
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uint32_t id; ///< Unique ID (4 letters).
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ChunkSaveLoadProc *save_proc; ///< Save procedure of the chunk.
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ChunkSaveLoadProc *load_proc; ///< Load procedure of the chunk.
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ChunkSaveLoadProc *ptrs_proc; ///< Manipulate pointers in the chunk.
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ChunkSaveLoadProc *load_check_proc; ///< Load procedure for game preview.
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ChunkType type; ///< Type of the chunk. @see ChunkType
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ChunkSaveLoadSpecialProc *special_proc = nullptr;
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};
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struct ChunkIDDumper {
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const char *operator()(uint32_t id);
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private:
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char buffer[5];
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};
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template <typename F>
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void SlExecWithSlVersion(SaveLoadVersion use_version, F proc)
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{
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extern SaveLoadVersion SlExecWithSlVersionStart(SaveLoadVersion use_version);
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extern void SlExecWithSlVersionEnd(SaveLoadVersion old_version);
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SaveLoadVersion old_ver = SlExecWithSlVersionStart(use_version);
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auto guard = scope_guard([&]() {
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SlExecWithSlVersionEnd(old_ver);
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});
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proc();
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}
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template <SlXvFeatureIndex feature, uint16_t min_version, uint16_t max_version>
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struct SaveUpstreamFeatureConditionalLoadUpstreamChunkInfo
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{
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static SaveLoadVersion GetLoadVersion()
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{
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extern SaveLoadVersion _sl_xv_upstream_version;
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return _sl_xv_upstream_version;
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}
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static bool SaveUpstream()
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{
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return true;
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}
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static bool LoadUpstream()
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{
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return SlXvIsFeaturePresent(feature, min_version, max_version);
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}
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};
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namespace upstream_sl {
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template <uint32_t id, typename F>
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ChunkHandler MakeUpstreamChunkHandler()
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{
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extern void SlLoadChunkByID(uint32_t);
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extern void SlLoadCheckChunkByID(uint32_t);
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extern void SlFixPointerChunkByID(uint32_t);
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ChunkHandler ch = {
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id,
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SlUnreachablePlaceholder,
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SlUnreachablePlaceholder,
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SlUnreachablePlaceholder,
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SlUnreachablePlaceholder,
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CH_UNUSED
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};
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ch.special_proc = [](uint32_t chunk_id, ChunkSaveLoadSpecialOp op) -> ChunkSaveLoadSpecialOpResult {
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assert(id == chunk_id);
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switch (op) {
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case CSLSO_PRE_LOAD:
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SlExecWithSlVersion(F::GetLoadVersion(), []() {
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SlLoadChunkByID(id);
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});
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return CSLSOR_LOAD_CHUNK_CONSUMED;
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case CSLSO_PRE_LOADCHECK:
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SlExecWithSlVersion(F::GetLoadVersion(), []() {
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SlLoadCheckChunkByID(id);
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});
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return CSLSOR_LOAD_CHUNK_CONSUMED;
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case CSLSO_PRE_PTRS:
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SlExecWithSlVersion(F::GetLoadVersion(), []() {
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SlFixPointerChunkByID(id);
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});
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return CSLSOR_LOAD_CHUNK_CONSUMED;
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case CSLSO_PRE_NULL_PTRS:
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return CSLSOR_UPSTREAM_NULL_PTRS;
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case CSLSO_SHOULD_SAVE_CHUNK:
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return CSLSOR_UPSTREAM_SAVE_CHUNK;
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default:
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return CSLSOR_NONE;
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}
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};
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return ch;
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}
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template <uint32_t id, typename F>
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ChunkHandler MakeConditionallyUpstreamChunkHandler(ChunkSaveLoadProc *save_proc, ChunkSaveLoadProc *load_proc, ChunkSaveLoadProc *ptrs_proc, ChunkSaveLoadProc *load_check_proc, ChunkType type)
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{
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extern void SlLoadChunkByID(uint32_t);
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extern void SlLoadCheckChunkByID(uint32_t);
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extern void SlFixPointerChunkByID(uint32_t);
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ChunkHandler ch = {
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id,
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save_proc,
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load_proc,
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ptrs_proc,
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load_check_proc,
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type
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};
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ch.special_proc = [](uint32_t chunk_id, ChunkSaveLoadSpecialOp op) -> ChunkSaveLoadSpecialOpResult {
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assert(id == chunk_id);
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switch (op) {
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case CSLSO_PRE_LOAD:
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if (!F::LoadUpstream()) return CSLSOR_NONE;
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SlExecWithSlVersion(F::GetLoadVersion(), []() {
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SlLoadChunkByID(id);
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});
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return CSLSOR_LOAD_CHUNK_CONSUMED;
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case CSLSO_PRE_LOADCHECK:
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if (!F::LoadUpstream()) return CSLSOR_NONE;
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SlExecWithSlVersion(F::GetLoadVersion(), []() {
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SlLoadCheckChunkByID(id);
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});
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return CSLSOR_LOAD_CHUNK_CONSUMED;
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case CSLSO_PRE_PTRS:
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if (!F::LoadUpstream()) return CSLSOR_NONE;
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SlExecWithSlVersion(F::GetLoadVersion(), []() {
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SlFixPointerChunkByID(id);
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});
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return CSLSOR_LOAD_CHUNK_CONSUMED;
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case CSLSO_PRE_NULL_PTRS:
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if (!F::LoadUpstream()) return CSLSOR_NONE;
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return CSLSOR_UPSTREAM_NULL_PTRS;
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case CSLSO_SHOULD_SAVE_CHUNK:
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return F::SaveUpstream() ? CSLSOR_UPSTREAM_SAVE_CHUNK : CSLSOR_NONE;
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default:
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return CSLSOR_NONE;
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}
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};
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return ch;
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}
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template <uint32_t id, SlXvFeatureIndex feature, uint16_t min_version = 1, uint16_t max_version = 0xFFFF>
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ChunkHandler MakeSaveUpstreamFeatureConditionalLoadUpstreamChunkHandler(ChunkSaveLoadProc *load_proc, ChunkSaveLoadProc *ptrs_proc, ChunkSaveLoadProc *load_check_proc)
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{
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return MakeConditionallyUpstreamChunkHandler<id, SaveUpstreamFeatureConditionalLoadUpstreamChunkInfo<feature, min_version, max_version>>(nullptr, load_proc, ptrs_proc, load_check_proc, CH_UNUSED);
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}
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}
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struct GeneralUpstreamChunkLoadInfo
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{
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static SaveLoadVersion GetLoadVersion();
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};
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using upstream_sl::MakeUpstreamChunkHandler;
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using upstream_sl::MakeConditionallyUpstreamChunkHandler;
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using upstream_sl::MakeSaveUpstreamFeatureConditionalLoadUpstreamChunkHandler;
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struct NullStruct {
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byte null;
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};
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/** A table of ChunkHandler entries. */
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using ChunkHandlerTable = std::span<const ChunkHandler>;
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/** Type of reference (#SLE_REF, #SLE_CONDREF). */
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enum SLRefType {
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REF_ORDER = 0, ///< Load/save a reference to an order.
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REF_VEHICLE = 1, ///< Load/save a reference to a vehicle.
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REF_STATION = 2, ///< Load/save a reference to a station.
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REF_TOWN = 3, ///< Load/save a reference to a town.
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REF_VEHICLE_OLD = 4, ///< Load/save an old-style reference to a vehicle (for pre-4.4 savegames).
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REF_ROADSTOPS = 5, ///< Load/save a reference to a bus/truck stop.
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REF_ENGINE_RENEWS = 6, ///< Load/save a reference to an engine renewal (autoreplace).
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REF_CARGO_PACKET = 7, ///< Load/save a reference to a cargo packet.
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REF_ORDERLIST = 8, ///< Load/save a reference to an orderlist.
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REF_STORAGE = 9, ///< Load/save a reference to a persistent storage.
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REF_LINK_GRAPH = 10, ///< Load/save a reference to a link graph.
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REF_LINK_GRAPH_JOB = 11, ///< Load/save a reference to a link graph job.
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REF_TEMPLATE_VEHICLE = 12, ///< Load/save a reference to a template vehicle
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};
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/** Flags for chunk extended headers */
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enum SaveLoadChunkExtHeaderFlags {
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SLCEHF_BIG_RIFF = 1 << 0, ///< This block uses a 60-bit RIFF chunk size
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};
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DECLARE_ENUM_AS_BIT_SET(SaveLoadChunkExtHeaderFlags)
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/**
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* Get the NumberType of a setting. This describes the integer type
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* as it is represented in memory
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* @param type VarType holding information about the variable-type
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* @return the SLE_VAR_* part of a variable-type description
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*/
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inline constexpr VarType GetVarMemType(VarType type)
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{
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return type & 0xF0; // GB(type, 4, 4) << 4;
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}
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/**
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* Get the FileType of a setting. This describes the integer type
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* as it is represented in a savegame/file
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* @param type VarType holding information about the file-type
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* @return the SLE_FILE_* part of a variable-type description
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*/
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inline constexpr VarType GetVarFileType(VarType type)
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{
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return type & 0xF; // GB(type, 0, 4);
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}
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template <class, template <class, class...> class>
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struct sl_is_instance : public std::false_type {};
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template <class...Ts, template <class, class...> class U>
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struct sl_is_instance<U<Ts...>, U> : public std::true_type {};
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template<template<class, std::size_t> class T, class U>
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struct sl_is_derived_from_array
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{
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private:
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template<class V, std::size_t N>
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static decltype(static_cast<T<V, N>>(std::declval<U>()), std::true_type{}) test(const T<V, N>&);
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static std::false_type test(...);
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public:
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static constexpr bool value = decltype(sl_is_derived_from_array::test(std::declval<U>()))::value;
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};
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/**
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* Return expect size in bytes of a VarType
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* @param type VarType to get size of.
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* @return size of type in bytes.
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*/
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inline constexpr size_t SlVarSize(VarType type)
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{
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switch (GetVarMemType(type)) {
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case SLE_VAR_BL:
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return sizeof(bool);
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case SLE_VAR_I8:
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case SLE_VAR_U8:
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return sizeof(int8_t);
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case SLE_VAR_I16:
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case SLE_VAR_U16:
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return sizeof(int16_t);
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case SLE_VAR_I32:
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case SLE_VAR_U32:
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return sizeof(int32_t);
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case SLE_VAR_I64:
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case SLE_VAR_U64:
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return sizeof(int64_t);
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case SLE_VAR_NAME:
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return sizeof(std::string);
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default:
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return sizeof(void *);
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}
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}
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/**
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* Check whether the variable size/type of the variable in the saveload configuration
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* matches with the actual variable size, for primitive types.
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*/
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template <typename TYPE>
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inline constexpr bool SlCheckPrimitiveTypeVar(VarType type)
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{
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using T = typename std::remove_reference<TYPE>::type;
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if (GetVarMemType(type) == SLE_VAR_NAME) {
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return std::is_same_v<T, std::string>;
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}
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if (GetVarMemType(type) == SLE_VAR_CNAME) {
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return std::is_same_v<T, char *> || std::is_same_v<T, const char *> || std::is_same_v<T, TinyString>;
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}
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if (!std::is_integral_v<T> && !std::is_enum_v<T> && !sl_is_instance<T, OverflowSafeInt>{} && !std::is_base_of_v<StrongTypedefBase, T>) return false;
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return sizeof(T) == SlVarSize(type);
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}
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/**
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* Check whether the variable size/type of the variable in the saveload configuration
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* matches with the actual variable size, for array types.
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*/
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template <typename TYPE>
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inline constexpr bool SlCheckArrayTypeVar(VarType type, size_t length, bool top_level)
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{
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using T = typename std::remove_reference<TYPE>::type;
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if constexpr (std::is_array_v<T>) {
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return SlCheckPrimitiveTypeVar<typename std::remove_all_extents_t<T>>(type);
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}
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if constexpr (sl_is_derived_from_array<std::array, T>::value) {
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return SlCheckArrayTypeVar<typename T::value_type>(type, length, false);
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}
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if constexpr (std::is_class_v<T>) {
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/* If T is class/struct, assume that the array is writing all its members, so check that the total size matches.
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* It's impractical to check the actual struct/class fields. */
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if (top_level && sizeof(T) == length) return true;
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}
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return SlCheckPrimitiveTypeVar<T>(type);
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}
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/**
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* Check whether the variable size/type of the variable in the saveload configuration
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* matches with the actual variable size.
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*/
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template <typename T>
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inline constexpr bool SlCheckVar(SaveLoadType cmd, VarType type, size_t length)
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{
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if (GetVarMemType(type) == SLE_VAR_NULL) return true;
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switch (cmd) {
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case SL_VAR:
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return SlCheckPrimitiveTypeVar<T>(type);
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case SL_REF:
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/* These should all be pointer sized. */
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return sizeof(T) == sizeof(void *);
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case SL_STR:
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/* These should be pointer sized, or fixed array. */
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if (GetVarMemType(type) == SLE_VAR_STRB) {
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return sizeof(T) == length;
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}
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return std::is_same_v<T, char *> || std::is_same_v<T, const char *> || std::is_same_v<T, TinyString>;
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case SL_STDSTR:
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/* These should be all pointers to std::string. */
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return std::is_same_v<typename std::remove_reference<T>::type, std::string>;
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case SL_ARR:
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/* Partial load of array is permitted. */
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return SlCheckArrayTypeVar<T>(type, SlVarSize(type) * length, true) && sizeof(T) >= SlVarSize(type) * length;
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case SL_REFLIST:
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if constexpr (sl_is_instance<T, std::list>{}) {
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return std::is_pointer_v<typename T::value_type> || sl_is_instance<typename T::value_type, std::unique_ptr>{};
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}
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return false;
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case SL_PTRRING:
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if constexpr (sl_is_instance<T, ring_buffer>{}) {
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return std::is_pointer_v<typename T::value_type> || sl_is_instance<typename T::value_type, std::unique_ptr>{};
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}
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return false;
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case SL_VEC:
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if constexpr (sl_is_instance<T, std::vector>{}) {
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return std::is_pointer_v<typename T::value_type> || sl_is_instance<typename T::value_type, std::unique_ptr>{};
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}
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return false;
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case SL_RING:
|
|
if constexpr (sl_is_instance<T, ring_buffer>{}) {
|
|
return SlCheckPrimitiveTypeVar<typename T::value_type>(type);
|
|
}
|
|
return false;
|
|
|
|
case SL_VARVEC:
|
|
if constexpr (sl_is_instance<T, std::vector>{}) {
|
|
return SlCheckPrimitiveTypeVar<typename T::value_type>(type);
|
|
}
|
|
return false;
|
|
|
|
default:
|
|
return true;
|
|
}
|
|
}
|
|
|
|
template <typename T, SaveLoadType cmd, VarType type, size_t length>
|
|
inline constexpr void *SlVarWrapper(void* ptr)
|
|
{
|
|
static_assert(SlCheckVar<T>(cmd, type, length));
|
|
return ptr;
|
|
}
|
|
|
|
/**
|
|
* Storage of simple variables, references (pointers), and arrays.
|
|
* @param cmd Load/save type. @see SaveLoadType
|
|
* @param base Name of the class or struct containing the variable.
|
|
* @param variable Name of the variable in the class or struct referenced by \a base.
|
|
* @param type Storage of the data in memory and in the savegame.
|
|
* @param from First savegame version that has the field.
|
|
* @param to Last savegame version that has the field.
|
|
* @param extver SlXvFeatureTest to test (along with from and to) which savegames have the field
|
|
* @note In general, it is better to use one of the SLE_* macros below.
|
|
*/
|
|
#define SLE_GENERAL_X(cmd, base, variable, type, length, from, to, extver) SaveLoad {false, cmd, type, length, from, to, SlVarWrapper<decltype(base::variable), cmd, type, length>((void*)cpp_offsetof(base, variable)), sizeof(base::variable), extver}
|
|
#define SLE_GENERAL(cmd, base, variable, type, length, from, to) SLE_GENERAL_X(cmd, base, variable, type, length, from, to, SlXvFeatureTest())
|
|
|
|
/**
|
|
* Storage of a variable in some savegame versions.
|
|
* @param base Name of the class or struct containing the variable.
|
|
* @param variable Name of the variable in the class or struct referenced by \a base.
|
|
* @param type Storage of the data in memory and in the savegame.
|
|
* @param from First savegame version that has the field.
|
|
* @param to Last savegame version that has the field.
|
|
* @param extver SlXvFeatureTest to test (along with from and to) which savegames have the field
|
|
*/
|
|
#define SLE_CONDVAR_X(base, variable, type, from, to, extver) SLE_GENERAL_X(SL_VAR, base, variable, type, 0, from, to, extver)
|
|
#define SLE_CONDVAR(base, variable, type, from, to) SLE_CONDVAR_X(base, variable, type, from, to, SlXvFeatureTest())
|
|
|
|
/**
|
|
* Storage of a reference in some savegame versions.
|
|
* @param base Name of the class or struct containing the variable.
|
|
* @param variable Name of the variable in the class or struct referenced by \a base.
|
|
* @param type Type of the reference, a value from #SLRefType.
|
|
* @param from First savegame version that has the field.
|
|
* @param to Last savegame version that has the field.
|
|
* @param extver SlXvFeatureTest to test (along with from and to) which savegames have the field
|
|
*/
|
|
#define SLE_CONDREF_X(base, variable, type, from, to, extver) SLE_GENERAL_X(SL_REF, base, variable, type, 0, from, to, extver)
|
|
#define SLE_CONDREF(base, variable, type, from, to) SLE_CONDREF_X(base, variable, type, from, to, SlXvFeatureTest())
|
|
|
|
/**
|
|
* Storage of a fixed-size array of #SL_VAR elements in some savegame versions.
|
|
* @param base Name of the class or struct containing the array.
|
|
* @param variable Name of the variable in the class or struct referenced by \a base.
|
|
* @param type Storage of the data in memory and in the savegame.
|
|
* @param length Number of elements in the array.
|
|
* @param from First savegame version that has the array.
|
|
* @param to Last savegame version that has the array.
|
|
* @param extver SlXvFeatureTest to test (along with from and to) which savegames have the field
|
|
*/
|
|
#define SLE_CONDARR_X(base, variable, type, length, from, to, extver) SLE_GENERAL_X(SL_ARR, base, variable, type, length, from, to, extver)
|
|
#define SLE_CONDARR(base, variable, type, length, from, to) SLE_CONDARR_X(base, variable, type, length, from, to, SlXvFeatureTest())
|
|
|
|
/**
|
|
* Storage of a string in some savegame versions.
|
|
* @param base Name of the class or struct containing the string.
|
|
* @param variable Name of the variable in the class or struct referenced by \a base.
|
|
* @param type Storage of the data in memory and in the savegame.
|
|
* @param length Number of elements in the string (only used for fixed size buffers).
|
|
* @param from First savegame version that has the string.
|
|
* @param to Last savegame version that has the string.
|
|
* @param extver SlXvFeatureTest to test (along with from and to) which savegames have the field
|
|
*/
|
|
#define SLE_CONDSTR_X(base, variable, type, length, from, to, extver) SLE_GENERAL_X(SL_STR, base, variable, type, length, from, to, extver)
|
|
#define SLE_CONDSTR(base, variable, type, length, from, to) SLE_CONDSTR_X(base, variable, type, length, from, to, SlXvFeatureTest())
|
|
|
|
/**
|
|
* Storage of a \c std::string in some savegame versions.
|
|
* @param base Name of the class or struct containing the string.
|
|
* @param variable Name of the variable in the class or struct referenced by \a base.
|
|
* @param type Storage of the data in memory and in the savegame.
|
|
* @param from First savegame version that has the string.
|
|
* @param to Last savegame version that has the string.
|
|
* @param extver SlXvFeatureTest to test (along with from and to) which savegames have the field
|
|
*/
|
|
#define SLE_CONDSSTR_X(base, variable, type, from, to, extver) SLE_GENERAL_X(SL_STDSTR, base, variable, type, 0, from, to, extver)
|
|
#define SLE_CONDSSTR(base, variable, type, from, to) SLE_GENERAL(SL_STDSTR, base, variable, type, 0, from, to)
|
|
|
|
/**
|
|
* Storage of a list of #SL_REF elements in some savegame versions.
|
|
* @param base Name of the class or struct containing the list.
|
|
* @param variable Name of the variable in the class or struct referenced by \a base.
|
|
* @param type Storage of the data in memory and in the savegame.
|
|
* @param from First savegame version that has the list.
|
|
* @param to Last savegame version that has the list.
|
|
* @param extver SlXvFeatureTest to test (along with from and to) which savegames have the field
|
|
*/
|
|
#define SLE_CONDREFLIST_X(base, variable, type, from, to, extver) SLE_GENERAL_X(SL_REFLIST, base, variable, type, 0, from, to, extver)
|
|
#define SLE_CONDREFLIST(base, variable, type, from, to) SLE_CONDREFLIST_X(base, variable, type, from, to, SlXvFeatureTest())
|
|
|
|
/**
|
|
* Storage of a ring in some savegame versions.
|
|
* @param base Name of the class or struct containing the list.
|
|
* @param variable Name of the variable in the class or struct referenced by \a base.
|
|
* @param type Storage of the data in memory and in the savegame.
|
|
* @param from First savegame version that has the list.
|
|
* @param to Last savegame version that has the list.
|
|
* @param extver SlXvFeatureTest to test (along with from and to) which savegames have the field
|
|
*/
|
|
#define SLE_CONDPTRRING_X(base, variable, type, from, to, extver) SLE_GENERAL_X(SL_PTRRING, base, variable, type, 0, from, to, extver)
|
|
#define SLE_CONDPTRRING(base, variable, type, from, to) SLE_CONDPTRRING_X(base, variable, type, from, to, SlXvFeatureTest())
|
|
|
|
/**
|
|
* Storage of a vector in some savegame versions.
|
|
* @param base Name of the class or struct containing the list.
|
|
* @param variable Name of the variable in the class or struct referenced by \a base.
|
|
* @param type Storage of the data in memory and in the savegame.
|
|
* @param from First savegame version that has the list.
|
|
* @param to Last savegame version that has the list.
|
|
* @param extver SlXvFeatureTest to test (along with from and to) which savegames have the field
|
|
*/
|
|
#define SLE_CONDVEC_X(base, variable, type, from, to, extver) SLE_GENERAL_X(SL_VEC, base, variable, type, 0, from, to, extver)
|
|
#define SLE_CONDVEC(base, variable, type, from, to) SLE_CONDVEC_X(base, variable, type, from, to, SlXvFeatureTest())
|
|
|
|
/**
|
|
* Storage of a variable vector in some savegame versions.
|
|
* @param base Name of the class or struct containing the list.
|
|
* @param variable Name of the variable in the class or struct referenced by \a base.
|
|
* @param type Storage of the data in memory and in the savegame.
|
|
* @param from First savegame version that has the list.
|
|
* @param to Last savegame version that has the list.
|
|
* @param extver SlXvFeatureTest to test (along with from and to) which savegames have the field
|
|
*/
|
|
#define SLE_CONDVARVEC_X(base, variable, type, from, to, extver) SLE_GENERAL_X(SL_VARVEC, base, variable, type, 0, from, to, extver)
|
|
#define SLE_CONDVARVEC(base, variable, type, from, to) SLE_CONDVARVEC_X(base, variable, type, from, to, SlXvFeatureTest())
|
|
|
|
/**
|
|
* Storage of a ring of #SL_VAR elements in some savegame versions.
|
|
* @param base Name of the class or struct containing the list.
|
|
* @param variable Name of the variable in the class or struct referenced by \a base.
|
|
* @param type Storage of the data in memory and in the savegame.
|
|
* @param from First savegame version that has the list.
|
|
* @param to Last savegame version that has the list.
|
|
* @param extver SlXvFeatureTest to test (along with from and to) which savegames have the field
|
|
*/
|
|
#define SLE_CONDRING_X(base, variable, type, from, to, extver) SLE_GENERAL_X(SL_RING, base, variable, type, 0, from, to, extver)
|
|
#define SLE_CONDRING(base, variable, type, from, to) SLE_CONDRING_X(base, variable, type, from, to, SlXvFeatureTest())
|
|
|
|
/**
|
|
* Storage of a variable in every version of a savegame.
|
|
* @param base Name of the class or struct containing the variable.
|
|
* @param variable Name of the variable in the class or struct referenced by \a base.
|
|
* @param type Storage of the data in memory and in the savegame.
|
|
*/
|
|
#define SLE_VAR(base, variable, type) SLE_CONDVAR(base, variable, type, SL_MIN_VERSION, SL_MAX_VERSION)
|
|
|
|
/**
|
|
* Storage of a reference in every version of a savegame.
|
|
* @param base Name of the class or struct containing the variable.
|
|
* @param variable Name of the variable in the class or struct referenced by \a base.
|
|
* @param type Type of the reference, a value from #SLRefType.
|
|
*/
|
|
#define SLE_REF(base, variable, type) SLE_CONDREF(base, variable, type, SL_MIN_VERSION, SL_MAX_VERSION)
|
|
|
|
/**
|
|
* Storage of fixed-size array of #SL_VAR elements in every version of a savegame.
|
|
* @param base Name of the class or struct containing the array.
|
|
* @param variable Name of the variable in the class or struct referenced by \a base.
|
|
* @param type Storage of the data in memory and in the savegame.
|
|
* @param length Number of elements in the array.
|
|
*/
|
|
#define SLE_ARR(base, variable, type, length) SLE_CONDARR(base, variable, type, length, SL_MIN_VERSION, SL_MAX_VERSION)
|
|
|
|
/**
|
|
* Storage of a string in every savegame version.
|
|
* @param base Name of the class or struct containing the string.
|
|
* @param variable Name of the variable in the class or struct referenced by \a base.
|
|
* @param type Storage of the data in memory and in the savegame.
|
|
* @param length Number of elements in the string (only used for fixed size buffers).
|
|
*/
|
|
#define SLE_STR(base, variable, type, length) SLE_CONDSTR(base, variable, type, length, SL_MIN_VERSION, SL_MAX_VERSION)
|
|
|
|
/**
|
|
* Storage of a \c std::string in every savegame version.
|
|
* @param base Name of the class or struct containing the string.
|
|
* @param variable Name of the variable in the class or struct referenced by \a base.
|
|
* @param type Storage of the data in memory and in the savegame.
|
|
*/
|
|
#define SLE_SSTR(base, variable, type) SLE_CONDSSTR(base, variable, type, SL_MIN_VERSION, SL_MAX_VERSION)
|
|
|
|
/**
|
|
* Storage of a list of #SL_REF elements in every savegame version.
|
|
* @param base Name of the class or struct containing the list.
|
|
* @param variable Name of the variable in the class or struct referenced by \a base.
|
|
* @param type Storage of the data in memory and in the savegame.
|
|
*/
|
|
#define SLE_REFLIST(base, variable, type) SLE_CONDREFLIST(base, variable, type, SL_MIN_VERSION, SL_MAX_VERSION)
|
|
|
|
/**
|
|
* Storage of a ring in every savegame version.
|
|
* @param base Name of the class or struct containing the list.
|
|
* @param variable Name of the variable in the class or struct referenced by \a base.
|
|
* @param type Storage of the data in memory and in the savegame.
|
|
*/
|
|
#define SLE_PTRRING(base, variable, type) SLE_CONDPTRRING(base, variable, type, SL_MIN_VERSION, SL_MAX_VERSION)
|
|
|
|
/**
|
|
* Storage of a vector in every savegame version.
|
|
* @param base Name of the class or struct containing the list.
|
|
* @param variable Name of the variable in the class or struct referenced by \a base.
|
|
* @param type Storage of the data in memory and in the savegame.
|
|
*/
|
|
#define SLE_VEC(base, variable, type) SLE_CONDVEC(base, variable, type, SL_MIN_VERSION, SL_MAX_VERSION)
|
|
|
|
/**
|
|
* Storage of a variable vector in every savegame version.
|
|
* @param base Name of the class or struct containing the list.
|
|
* @param variable Name of the variable in the class or struct referenced by \a base.
|
|
* @param type Storage of the data in memory and in the savegame.
|
|
*/
|
|
#define SLE_VARVEC(base, variable, type) SLE_CONDVARVEC(base, variable, type, SL_MIN_VERSION, SL_MAX_VERSION)
|
|
|
|
/**
|
|
* Empty space in every savegame version.
|
|
* @param length Length of the empty space.
|
|
*/
|
|
#define SLE_NULL(length) SLE_CONDNULL(length, SL_MIN_VERSION, SL_MAX_VERSION)
|
|
|
|
/**
|
|
* Empty space in some savegame versions.
|
|
* @param length Length of the empty space.
|
|
* @param from First savegame version that has the empty space.
|
|
* @param to Last savegame version that has the empty space.
|
|
* @param extver SlXvFeatureTest to test (along with from and to) which savegames have empty space
|
|
*/
|
|
#define SLE_CONDNULL_X(length, from, to, extver) SLE_CONDARR_X(NullStruct, null, SLE_FILE_U8 | SLE_VAR_NULL, length, from, to, extver)
|
|
#define SLE_CONDNULL(length, from, to) SLE_CONDNULL_X(length, from, to, SlXvFeatureTest())
|
|
|
|
/** Translate values ingame to different values in the savegame and vv. */
|
|
#define SLE_WRITEBYTE(base, variable) SLE_GENERAL(SL_WRITEBYTE, base, variable, 0, 0, SL_MIN_VERSION, SL_MAX_VERSION)
|
|
|
|
#define SLE_VEH_INCLUDE() {false, SL_VEH_INCLUDE, 0, 0, SL_MIN_VERSION, SL_MAX_VERSION, nullptr, 0, SlXvFeatureTest()}
|
|
#define SLE_ST_INCLUDE() {false, SL_ST_INCLUDE, 0, 0, SL_MIN_VERSION, SL_MAX_VERSION, nullptr, 0, SlXvFeatureTest()}
|
|
|
|
/**
|
|
* Storage of global simple variables, references (pointers), and arrays.
|
|
* @param cmd Load/save type. @see SaveLoadType
|
|
* @param variable Name of the global variable.
|
|
* @param type Storage of the data in memory and in the savegame.
|
|
* @param from First savegame version that has the field.
|
|
* @param to Last savegame version that has the field.
|
|
* @param extver SlXvFeatureTest to test (along with from and to) which savegames have the field
|
|
* @note In general, it is better to use one of the SLEG_* macros below.
|
|
*/
|
|
#define SLEG_GENERAL_X(cmd, variable, type, length, from, to, extver) SaveLoad {true, cmd, type, length, from, to, SlVarWrapper<decltype(variable), cmd, type, length>((void*)&variable), sizeof(variable), extver}
|
|
#define SLEG_GENERAL(cmd, variable, type, length, from, to) SLEG_GENERAL_X(cmd, variable, type, length, from, to, SlXvFeatureTest())
|
|
|
|
/**
|
|
* Storage of a global variable in some savegame versions.
|
|
* @param variable Name of the global variable.
|
|
* @param type Storage of the data in memory and in the savegame.
|
|
* @param from First savegame version that has the field.
|
|
* @param to Last savegame version that has the field.
|
|
* @param extver SlXvFeatureTest to test (along with from and to) which savegames have the field
|
|
*/
|
|
#define SLEG_CONDVAR_X(variable, type, from, to, extver) SLEG_GENERAL_X(SL_VAR, variable, type, 0, from, to, extver)
|
|
#define SLEG_CONDVAR(variable, type, from, to) SLEG_CONDVAR_X(variable, type, from, to, SlXvFeatureTest())
|
|
|
|
/**
|
|
* Storage of a global reference in some savegame versions.
|
|
* @param variable Name of the global variable.
|
|
* @param type Storage of the data in memory and in the savegame.
|
|
* @param from First savegame version that has the field.
|
|
* @param to Last savegame version that has the field.
|
|
* @param extver SlXvFeatureTest to test (along with from and to) which savegames have the field
|
|
*/
|
|
#define SLEG_CONDREF_X(variable, type, from, to, extver) SLEG_GENERAL_X(SL_REF, variable, type, 0, from, to, extver)
|
|
#define SLEG_CONDREF(variable, type, from, to) SLEG_CONDREF_X(variable, type, from, to, SlXvFeatureTest())
|
|
|
|
/**
|
|
* Storage of a global fixed-size array of #SL_VAR elements in some savegame versions.
|
|
* @param variable Name of the global variable.
|
|
* @param type Storage of the data in memory and in the savegame.
|
|
* @param length Number of elements in the array.
|
|
* @param from First savegame version that has the array.
|
|
* @param to Last savegame version that has the array.
|
|
* @param extver SlXvFeatureTest to test (along with from and to) which savegames have the field
|
|
*/
|
|
#define SLEG_CONDARR_X(variable, type, length, from, to, extver) SLEG_GENERAL_X(SL_ARR, variable, type, length, from, to, extver)
|
|
#define SLEG_CONDARR(variable, type, length, from, to) SLEG_CONDARR_X(variable, type, length, from, to, SlXvFeatureTest())
|
|
|
|
/**
|
|
* Storage of a global string in some savegame versions.
|
|
* @param variable Name of the global variable.
|
|
* @param type Storage of the data in memory and in the savegame.
|
|
* @param length Number of elements in the string (only used for fixed size buffers).
|
|
* @param from First savegame version that has the string.
|
|
* @param to Last savegame version that has the string.
|
|
* @param extver SlXvFeatureTest to test (along with from and to) which savegames have the field
|
|
*/
|
|
#define SLEG_CONDSTR_X(variable, type, length, from, to, extver) SLEG_GENERAL_X(SL_STR, variable, type, length, from, to, extver)
|
|
#define SLEG_CONDSTR(variable, type, length, from, to) SLEG_CONDSTR_X(variable, type, length, from, to, SlXvFeatureTest())
|
|
|
|
/**
|
|
* Storage of a global \c std::string in some savegame versions.
|
|
* @param variable Name of the global variable.
|
|
* @param type Storage of the data in memory and in the savegame.
|
|
* @param from First savegame version that has the string.
|
|
* @param to Last savegame version that has the string.
|
|
*/
|
|
#define SLEG_CONDSSTR_X(variable, type, from, to, extver) SLEG_GENERAL_X(SL_STDSTR, variable, type, 0, from, to, extver)
|
|
#define SLEG_CONDSSTR(variable, type, from, to) SLEG_GENERAL(SL_STDSTR, variable, type, 0, from, to)
|
|
|
|
/**
|
|
* Storage of a global reference list in some savegame versions.
|
|
* @param variable Name of the global variable.
|
|
* @param type Storage of the data in memory and in the savegame.
|
|
* @param from First savegame version that has the list.
|
|
* @param to Last savegame version that has the list.
|
|
* @param extver SlXvFeatureTest to test (along with from and to) which savegames have the field
|
|
*/
|
|
#define SLEG_CONDREFLIST_X(variable, type, from, to, extver) SLEG_GENERAL_X(SL_REFLIST, variable, type, 0, from, to, extver)
|
|
#define SLEG_CONDREFLIST(variable, type, from, to) SLEG_CONDREFLIST_X(variable, type, from, to, SlXvFeatureTest())
|
|
|
|
/**
|
|
* Storage of a global ring in some savegame versions.
|
|
* @param variable Name of the global variable.
|
|
* @param type Storage of the data in memory and in the savegame.
|
|
* @param from First savegame version that has the list.
|
|
* @param to Last savegame version that has the list.
|
|
* @param extver SlXvFeatureTest to test (along with from and to) which savegames have the field
|
|
*/
|
|
#define SLEG_CONDPTRRING_X(variable, type, from, to, extver) SLEG_GENERAL_X(SL_PTRRING, variable, type, 0, from, to, extver)
|
|
#define SLEG_CONDPTRRING(variable, type, from, to) SLEG_CONDPTRRING_X(variable, type, from, to, SlXvFeatureTest())
|
|
|
|
/**
|
|
* Storage of a global vector in some savegame versions.
|
|
* @param variable Name of the global variable.
|
|
* @param type Storage of the data in memory and in the savegame.
|
|
* @param from First savegame version that has the list.
|
|
* @param to Last savegame version that has the list.
|
|
* @param extver SlXvFeatureTest to test (along with from and to) which savegames have the field
|
|
*/
|
|
#define SLEG_CONDVEC_X(variable, type, from, to, extver) SLEG_GENERAL_X(SL_VEC, variable, type, 0, from, to, extver)
|
|
#define SLEG_CONDVEC(variable, type, from, to) SLEG_CONDVEC_X(variable, type, from, to, SlXvFeatureTest())
|
|
|
|
/**
|
|
* Storage of a variable vector in some savegame versions.
|
|
* @param variable Name of the global variable.
|
|
* @param type Storage of the data in memory and in the savegame.
|
|
* @param from First savegame version that has the list.
|
|
* @param to Last savegame version that has the list.
|
|
* @param extver SlXvFeatureTest to test (along with from and to) which savegames have the field
|
|
*/
|
|
#define SLEG_CONDVARVEC_X(variable, type, from, to, extver) SLEG_GENERAL_X(SL_VARVEC, variable, type, 0, from, to, extver)
|
|
#define SLEG_CONDVARVEC(variable, type, from, to) SLEG_CONDVARVEC_X(variable, type, from, to, SlXvFeatureTest())
|
|
|
|
/**
|
|
* Storage of a global variable in every savegame version.
|
|
* @param variable Name of the global variable.
|
|
* @param type Storage of the data in memory and in the savegame.
|
|
*/
|
|
#define SLEG_VAR(variable, type) SLEG_CONDVAR(variable, type, SL_MIN_VERSION, SL_MAX_VERSION)
|
|
|
|
/**
|
|
* Storage of a global reference in every savegame version.
|
|
* @param variable Name of the global variable.
|
|
* @param type Storage of the data in memory and in the savegame.
|
|
*/
|
|
#define SLEG_REF(variable, type) SLEG_CONDREF(variable, type, SL_MIN_VERSION, SL_MAX_VERSION)
|
|
|
|
/**
|
|
* Storage of a global fixed-size array of #SL_VAR elements in every savegame version.
|
|
* @param variable Name of the global variable.
|
|
* @param type Storage of the data in memory and in the savegame.
|
|
*/
|
|
#define SLEG_ARR(variable, type) SLEG_CONDARR(variable, type, lengthof(variable), SL_MIN_VERSION, SL_MAX_VERSION)
|
|
|
|
/**
|
|
* Storage of a global string in every savegame version.
|
|
* @param variable Name of the global variable.
|
|
* @param type Storage of the data in memory and in the savegame.
|
|
*/
|
|
#define SLEG_STR(variable, type) SLEG_CONDSTR(variable, type, sizeof(variable), SL_MIN_VERSION, SL_MAX_VERSION)
|
|
|
|
/**
|
|
* Storage of a global \c std::string in every savegame version.
|
|
* @param variable Name of the global variable.
|
|
* @param type Storage of the data in memory and in the savegame.
|
|
*/
|
|
#define SLEG_SSTR(variable, type) SLEG_CONDSSTR(variable, type, SL_MIN_VERSION, SL_MAX_VERSION)
|
|
|
|
/**
|
|
* Storage of a global reference list in every savegame version.
|
|
* @param variable Name of the global variable.
|
|
* @param type Storage of the data in memory and in the savegame.
|
|
*/
|
|
#define SLEG_REFLIST(variable, type) SLEG_CONDREFLIST(variable, type, SL_MIN_VERSION, SL_MAX_VERSION)
|
|
|
|
/**
|
|
* Storage of a global ring in every savegame version.
|
|
* @param variable Name of the global variable.
|
|
* @param type Storage of the data in memory and in the savegame.
|
|
*/
|
|
#define SLEG_PTRRING(variable, type) SLEG_CONDPTRRING(variable, type, SL_MIN_VERSION, SL_MAX_VERSION)
|
|
|
|
/**
|
|
* Storage of a global vector in every savegame version.
|
|
* @param variable Name of the global variable.
|
|
* @param type Storage of the data in memory and in the savegame.
|
|
*/
|
|
#define SLEG_VEC(variable, type) SLEG_CONDVEC(variable, type, SL_MIN_VERSION, SL_MAX_VERSION)
|
|
|
|
/**
|
|
* Empty global space in some savegame versions.
|
|
* @param length Length of the empty space.
|
|
* @param from First savegame version that has the empty space.
|
|
* @param to Last savegame version that has the empty space.
|
|
* @param extver SlXvFeatureTest to test (along with from and to) which savegames have empty space
|
|
*/
|
|
#define SLEG_CONDNULL(length, from, to) {true, SL_ARR, SLE_FILE_U8 | SLE_VAR_NULL, length, from, to, (void*)nullptr, SlXvFeatureTest()}
|
|
|
|
/**
|
|
* Checks whether the savegame is below \a major.\a minor.
|
|
* @param major Major number of the version to check against.
|
|
* @param minor Minor number of the version to check against. If \a minor is 0 or not specified, only the major number is checked.
|
|
* @return Savegame version is earlier than the specified version.
|
|
*/
|
|
inline bool IsSavegameVersionBefore(SaveLoadVersion major, byte minor = 0)
|
|
{
|
|
extern SaveLoadVersion _sl_version;
|
|
extern byte _sl_minor_version;
|
|
return _sl_version < major || (minor > 0 && _sl_version == major && _sl_minor_version < minor);
|
|
}
|
|
|
|
/**
|
|
* Checks whether the savegame is below or at \a major. This should be used to repair data from existing
|
|
* savegames which is no longer corrupted in new savegames, but for which otherwise no savegame
|
|
* bump is required.
|
|
* @param major Major number of the version to check against.
|
|
* @return Savegame version is at most the specified version.
|
|
*/
|
|
inline bool IsSavegameVersionBeforeOrAt(SaveLoadVersion major)
|
|
{
|
|
extern SaveLoadVersion _sl_version;
|
|
return _sl_version <= major;
|
|
}
|
|
|
|
/**
|
|
* Checks if some version from/to combination falls within the range of the
|
|
* active savegame version.
|
|
* @param version_from Inclusive savegame version lower bound.
|
|
* @param version_to Exclusive savegame version upper bound. SL_MAX_VERSION if no upper bound.
|
|
* @return Active savegame version falls within the given range.
|
|
*/
|
|
inline bool SlIsObjectCurrentlyValid(SaveLoadVersion version_from, SaveLoadVersion version_to, SlXvFeatureTest ext_feature_test)
|
|
{
|
|
extern const SaveLoadVersion SAVEGAME_VERSION;
|
|
if (!ext_feature_test.IsFeaturePresent(_sl_xv_feature_static_versions, SAVEGAME_VERSION, version_from, version_to)) return false;
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Check if the given saveload type is a numeric type.
|
|
* @param conv the type to check
|
|
* @return True if it's a numeric type.
|
|
*/
|
|
inline bool IsNumericType(VarType conv)
|
|
{
|
|
return GetVarMemType(conv) <= SLE_VAR_U64;
|
|
}
|
|
|
|
/**
|
|
* Get the address of the variable. Which one to pick depends on the object
|
|
* pointer. If it is nullptr we are dealing with global variables so the address
|
|
* is taken. If non-null only the offset is stored in the union and we need
|
|
* to add this to the address of the object
|
|
*/
|
|
inline void *GetVariableAddress(const void *object, const SaveLoad &sld)
|
|
{
|
|
/* Entry is a global address. */
|
|
if (sld.global) return sld.address;
|
|
|
|
#ifdef _DEBUG
|
|
/* Entry is a null-variable, mostly used to read old savegames etc. */
|
|
if (GetVarMemType(sld.conv) == SLE_VAR_NULL) {
|
|
assert(sld.address == nullptr);
|
|
return nullptr;
|
|
}
|
|
|
|
/* Everything else should be a non-null pointer. */
|
|
assert(object != nullptr);
|
|
#endif
|
|
return const_cast<byte *>((const byte *)object + (ptrdiff_t)sld.address);
|
|
}
|
|
|
|
int64_t ReadValue(const void *ptr, VarType conv);
|
|
void WriteValue(void *ptr, VarType conv, int64_t val);
|
|
|
|
void SlSetArrayIndex(uint index);
|
|
int SlIterateArray();
|
|
|
|
void SlAutolength(AutolengthProc *proc, void *arg);
|
|
size_t SlGetFieldLength();
|
|
void SlSetLength(size_t length);
|
|
size_t SlCalcObjMemberLength(const void *object, const SaveLoad &sld);
|
|
size_t SlCalcObjLength(const void *object, const SaveLoadTable &slt);
|
|
|
|
/**
|
|
* Run proc, saving result in the autolength temp buffer
|
|
* @param proc The callback procedure that is called
|
|
* @return Span of the saved data, in the autolength temp buffer
|
|
*/
|
|
template <typename F>
|
|
std::span<byte> SlSaveToTempBuffer(F proc)
|
|
{
|
|
extern uint8_t SlSaveToTempBufferSetup();
|
|
extern std::span<byte> SlSaveToTempBufferRestore(uint8_t state);
|
|
|
|
uint8_t state = SlSaveToTempBufferSetup();
|
|
proc();
|
|
return SlSaveToTempBufferRestore(state);
|
|
}
|
|
|
|
/**
|
|
* Run proc, saving result to a std::vector
|
|
* This is implemented in terms of SlSaveToTempBuffer
|
|
* @param proc The callback procedure that is called
|
|
* @return a vector containing the saved data
|
|
*/
|
|
template <typename F>
|
|
std::vector<uint8_t> SlSaveToVector(F proc)
|
|
{
|
|
std::span<byte> result = SlSaveToTempBuffer(proc);
|
|
return std::vector<uint8_t>(result.begin(), result.end());
|
|
}
|
|
|
|
struct SlConditionallySaveState {
|
|
size_t current_len;
|
|
uint8_t need_length;
|
|
bool nested;
|
|
};
|
|
|
|
/**
|
|
* Run proc, saving as normal if proc returns true, otherwise the saved data is discarded
|
|
* @param proc The callback procedure that is called, this should return true to save, false to discard
|
|
* @return Whether the callback procedure returned true to save
|
|
*/
|
|
template <typename F>
|
|
bool SlConditionallySave(F proc)
|
|
{
|
|
extern SlConditionallySaveState SlConditionallySaveSetup();
|
|
extern void SlConditionallySaveCompletion(const SlConditionallySaveState &state, bool save);
|
|
|
|
SlConditionallySaveState state = SlConditionallySaveSetup();
|
|
bool save = proc();
|
|
SlConditionallySaveCompletion(state, save);
|
|
return save;
|
|
}
|
|
|
|
struct SlLoadFromBufferState {
|
|
size_t old_obj_len;
|
|
byte *old_bufp;
|
|
byte *old_bufe;
|
|
};
|
|
|
|
/**
|
|
* Run proc, loading exactly length bytes from the contents of buffer
|
|
* @param proc The callback procedure that is called
|
|
*/
|
|
template <typename F>
|
|
void SlLoadFromBuffer(const byte *buffer, size_t length, F proc)
|
|
{
|
|
extern SlLoadFromBufferState SlLoadFromBufferSetup(const byte *buffer, size_t length);
|
|
extern void SlLoadFromBufferRestore(const SlLoadFromBufferState &state, const byte *buffer, size_t length);
|
|
|
|
SlLoadFromBufferState state = SlLoadFromBufferSetup(buffer, length);
|
|
proc();
|
|
SlLoadFromBufferRestore(state, buffer, length);
|
|
}
|
|
|
|
void SlGlobList(const SaveLoadTable &slt);
|
|
void SlArray(void *array, size_t length, VarType conv);
|
|
void SlObject(void *object, const SaveLoadTable &slt);
|
|
bool SlObjectMember(void *object, const SaveLoad &sld);
|
|
|
|
std::vector<SaveLoad> SlFilterObject(const SaveLoadTable &slt);
|
|
void SlObjectSaveFiltered(void *object, const SaveLoadTable &slt);
|
|
void SlObjectLoadFiltered(void *object, const SaveLoadTable &slt);
|
|
void SlObjectPtrOrNullFiltered(void *object, const SaveLoadTable &slt);
|
|
|
|
bool SlIsTableChunk();
|
|
void SlSkipTableHeader();
|
|
std::vector<SaveLoad> SlTableHeader(const NamedSaveLoadTable &slt);
|
|
std::vector<SaveLoad> SlTableHeaderOrRiff(const NamedSaveLoadTable &slt);
|
|
void SlSaveTableObjectChunk(const SaveLoadTable &slt);
|
|
void SlLoadTableOrRiffFiltered(const SaveLoadTable &slt);
|
|
void SlLoadTableWithArrayLengthPrefixesMissing();
|
|
|
|
inline void SlSaveTableObjectChunk(const NamedSaveLoadTable &slt)
|
|
{
|
|
SlSaveTableObjectChunk(SlTableHeader(slt));
|
|
}
|
|
|
|
inline void SlLoadTableOrRiffFiltered(const NamedSaveLoadTable &slt)
|
|
{
|
|
SlLoadTableOrRiffFiltered(SlTableHeaderOrRiff(slt));
|
|
}
|
|
|
|
[[noreturn]] void CDECL SlErrorFmt(StringID string, const char *msg, ...) WARN_FORMAT(2, 3);
|
|
|
|
bool SaveloadCrashWithMissingNewGRFs();
|
|
|
|
void SlResetVENC();
|
|
void SlProcessVENC();
|
|
|
|
void SlResetTNNC();
|
|
|
|
extern std::string _savegame_format;
|
|
extern bool _do_autosave;
|
|
|
|
#endif /* SL_SAVELOAD_H */
|