mirror of
https://github.com/RPCS3/rpcs3.git
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254 lines
7.2 KiB
C++
254 lines
7.2 KiB
C++
#include "stdafx.h"
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#include "util/types.hpp"
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#include "util/serialization.hpp"
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#include "util/logs.hpp"
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#include "Utilities/File.h"
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#include "system_config.h"
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#include "System.h"
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#include <set>
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LOG_CHANNEL(sys_log, "SYS");
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struct serial_ver_t
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{
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bool used = false;
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s32 current_version = 0;
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std::set<s32> compatible_versions;
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};
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static std::array<serial_ver_t, 26> s_serial_versions;
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#define SERIALIZATION_VER(name, identifier, ...) \
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\
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const bool s_##name##_serialization_fill = []() { if (::s_serial_versions[identifier].compatible_versions.empty()) ::s_serial_versions[identifier].compatible_versions = {__VA_ARGS__}; return true; }();\
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\
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extern void using_##name##_serialization()\
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{\
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ensure(Emu.IsStopped());\
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::s_serial_versions[identifier].used = true;\
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}\
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\
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extern s32 get_##name##_serialization_version()\
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{\
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return ::s_serial_versions[identifier].current_version;\
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}
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SERIALIZATION_VER(global_version, 0, 15) // For stuff not listed here
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SERIALIZATION_VER(ppu, 1, 1)
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SERIALIZATION_VER(spu, 2, 1)
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SERIALIZATION_VER(lv2_sync, 3, 1)
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SERIALIZATION_VER(lv2_vm, 4, 1)
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SERIALIZATION_VER(lv2_net, 5, 1)
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SERIALIZATION_VER(lv2_fs, 6, 1)
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SERIALIZATION_VER(lv2_prx_overlay, 7, 1)
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SERIALIZATION_VER(lv2_memory, 8, 1)
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SERIALIZATION_VER(lv2_config, 9, 1)
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namespace rsx
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{
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SERIALIZATION_VER(rsx, 10, 1)
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}
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namespace np
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{
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SERIALIZATION_VER(sceNp, 11, 1)
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}
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#ifdef _MSC_VER
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// Compiler bug, lambda function body does seem to inherit used namespace atleast for function declaration
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SERIALIZATION_VER(rsx, 10)
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SERIALIZATION_VER(sceNp, 11)
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#endif
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SERIALIZATION_VER(cellVdec, 12, 1)
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SERIALIZATION_VER(cellAudio, 13, 1)
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SERIALIZATION_VER(cellCamera, 14, 1)
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SERIALIZATION_VER(cellGem, 15, 1)
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SERIALIZATION_VER(sceNpTrophy, 16, 1)
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SERIALIZATION_VER(cellMusic, 17, 1)
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SERIALIZATION_VER(cellVoice, 18, 1)
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SERIALIZATION_VER(cellGcm, 19, 1)
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SERIALIZATION_VER(sysPrxForUser, 20, 1)
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SERIALIZATION_VER(cellSaveData, 21, 1)
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SERIALIZATION_VER(cellAudioOut, 22, 1)
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SERIALIZATION_VER(sys_io, 23, 1)
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// Misc versions for HLE/LLE not included so main version would not invalidated
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SERIALIZATION_VER(LLE, 24, 1)
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SERIALIZATION_VER(HLE, 25, 1)
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std::vector<std::pair<u16, u16>> get_savestate_versioning_data(const fs::file& file)
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{
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if (!file)
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{
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return {};
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}
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file.seek(0);
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if (u64 r = 0; !file.read(r) || r != "RPCS3SAV"_u64)
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{
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return {};
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}
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file.seek(10);
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u64 offs = 0;
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file.read(offs);
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const usz fsize = file.size();
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if (!offs || fsize <= offs)
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{
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return {};
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}
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file.seek(offs);
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utils::serial ar;
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ar.set_reading_state();
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file.read(ar.data, fsize - offs);
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return ar;
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}
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bool is_savestate_version_compatible(const std::vector<std::pair<u16, u16>>& data, bool is_boot_check)
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{
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if (data.empty())
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{
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return false;
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}
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bool ok = true;
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for (auto [identifier, version] : data)
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{
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if (identifier >= s_serial_versions.size())
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{
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(is_boot_check ? sys_log.error : sys_log.trace)("Savestate version identifier is unknown! (category=%u, version=%u)", identifier, version);
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ok = false; // Log all mismatches
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}
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else if (!s_serial_versions[identifier].compatible_versions.count(version))
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{
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(is_boot_check ? sys_log.error : sys_log.trace)("Savestate version is not supported. (category=%u, version=%u)", identifier, version);
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ok = false;
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}
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else if (is_boot_check)
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{
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s_serial_versions[identifier].current_version = version;
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}
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}
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if (!ok && is_boot_check)
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{
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for (auto [identifier, _] : data)
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{
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s_serial_versions[identifier].current_version = 0;
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}
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}
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return ok;
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}
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std::string get_savestate_file(std::string_view title_id, std::string_view boot_path, s64 abs_id, s64 rel_id)
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{
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const std::string title = std::string{title_id.empty() ? boot_path.substr(boot_path.find_last_of(fs::delim) + 1) : title_id};
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if (abs_id == -1 && rel_id == -1)
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{
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// Return directory
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return fs::get_cache_dir() + "/savestates/" + title + "/";
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}
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ensure(rel_id < 0 || abs_id >= 0, "Unimplemented!");
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const std::string save_id = fmt::format("%d", abs_id);
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// Make sure that savestate file with higher IDs are placed at the bottom of "by name" file ordering in directory view by adding a single character prefix which tells the ID length
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// While not needing to keep a 59 chars long suffix at all times for this purpose
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const char prefix = ::at32("0123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz"sv, save_id.size());
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return fs::get_cache_dir() + "/savestates/" + title + "/" + title + '_' + prefix + '_' + save_id + ".SAVESTAT";
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}
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bool is_savestate_compatible(const fs::file& file)
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{
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return is_savestate_version_compatible(get_savestate_versioning_data(file), false);
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}
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std::vector<std::pair<u16, u16>> read_used_savestate_versions()
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{
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std::vector<std::pair<u16, u16>> used_serial;
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used_serial.reserve(s_serial_versions.size());
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for (serial_ver_t& ver : s_serial_versions)
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{
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if (std::exchange(ver.used, false))
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{
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used_serial.emplace_back(&ver - s_serial_versions.data(), *ver.compatible_versions.rbegin());
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}
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ver.current_version = 0;
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}
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return used_serial;
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}
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bool boot_last_savestate(bool testing)
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{
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if (!g_cfg.savestate.suspend_emu && !Emu.GetTitleID().empty() && (Emu.IsRunning() || Emu.GetStatus() == system_state::paused))
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{
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extern bool is_savestate_compatible(const fs::file& file);
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const std::string save_dir = fs::get_cache_dir() + "/savestates/";
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std::string savestate_path;
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s64 mtime = smin;
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for (auto&& entry : fs::dir(save_dir))
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{
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if (entry.is_directory)
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{
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continue;
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}
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// Find the latest savestate file compatible with the game (TODO: Check app version and anything more)
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if (entry.name.find(Emu.GetTitleID()) != umax && mtime <= entry.mtime)
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{
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if (std::string path = save_dir + entry.name; is_savestate_compatible(fs::file(path)))
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{
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savestate_path = std::move(path);
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mtime = entry.mtime;
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}
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}
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}
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const bool result = fs::is_file(savestate_path);
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if (testing)
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{
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sys_log.trace("boot_last_savestate(true) returned %s.", result);
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return result;
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}
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if (result)
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{
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sys_log.success("Booting the most recent savestate \'%s\' using the Reload shortcut.", savestate_path);
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Emu.GracefulShutdown(false);
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if (game_boot_result error = Emu.BootGame(savestate_path, "", true); error != game_boot_result::no_errors)
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{
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sys_log.error("Failed to boot savestate \'%s\' using the Reload shortcut. (error: %s)", savestate_path, error);
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}
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else
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{
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return true;
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}
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}
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sys_log.error("No compatible savestate file found in \'%s\''", save_dir);
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}
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return false;
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}
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