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Savestates: Implement Ctrl+R to reload the most recent savestate

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Ctrl+R no longer means Resume emulation, this functionality has been transferred to Ctrl+P which is also capable of pausing the emulation. (so it's now a toggle)
This commit is contained in:
Eladash 2022-07-11 17:08:34 +03:00 • committed by Ivan
parent 1f5cf776b2
commit 0bfdfd8433
8 changed files with 247 additions and 129 deletions
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210
rpcs3/Emu/savestate_utils.cpp Normal file
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#include "stdafx.h"
#include "util/types.hpp"
#include "util/serialization.hpp"
#include "util/logs.hpp"
#include "Utilities/File.h"
#include "system_config.h"
#include "System.h"
#include <set>
LOG_CHANNEL(sys_log, "SYS");
struct serial_ver_t
{
bool used = false;
s32 current_version = 0;
std::set<s32> compatible_versions;
};
static std::array<serial_ver_t, 23> s_serial_versions;
#define SERIALIZATION_VER(name, identifier, ...) \
\
const bool s_##name##_serialization_fill = []() { if (::s_serial_versions[identifier].compatible_versions.empty()) ::s_serial_versions[identifier].compatible_versions = {__VA_ARGS__}; return true; }();\
\
extern void using_##name##_serialization()\
{\
ensure(Emu.IsStopped());\
::s_serial_versions[identifier].used = true;\
}\
\
extern s32 get_##name##_serialization_version()\
{\
return ::s_serial_versions[identifier].current_version;\
}
SERIALIZATION_VER(global_version, 0, 12) // For stuff not listed here
SERIALIZATION_VER(ppu, 1, 1)
SERIALIZATION_VER(spu, 2, 1)
SERIALIZATION_VER(lv2_sync, 3, 1)
SERIALIZATION_VER(lv2_vm, 4, 1)
SERIALIZATION_VER(lv2_net, 5, 1)
SERIALIZATION_VER(lv2_fs, 6, 1)
SERIALIZATION_VER(lv2_prx_overlay, 7, 1)
SERIALIZATION_VER(lv2_memory, 8, 1)
SERIALIZATION_VER(lv2_config, 9, 1)
namespace rsx
{
SERIALIZATION_VER(rsx, 10, 1, 2)
}
namespace np
{
SERIALIZATION_VER(sceNp, 11, 1)
}
#ifdef _MSC_VER
// Compiler bug, lambda function body does seem to inherit used namespace atleast for function decleration
SERIALIZATION_VER(rsx, 10)
SERIALIZATION_VER(sceNp, 11)
#endif
SERIALIZATION_VER(cellVdec, 12, 1)
SERIALIZATION_VER(cellAudio, 13, 1)
SERIALIZATION_VER(cellCamera, 14, 1)
SERIALIZATION_VER(cellGem, 15, 1)
SERIALIZATION_VER(sceNpTrophy, 16, 1)
SERIALIZATION_VER(cellMusic, 17, 1)
SERIALIZATION_VER(cellVoice, 18, 1)
SERIALIZATION_VER(cellGcm, 19, 1)
SERIALIZATION_VER(sysPrxForUser, 20, 1)
SERIALIZATION_VER(cellSaveData, 21, 1)
SERIALIZATION_VER(cellAudioOut, 22, 1)
std::vector<std::pair<u16, u16>> get_savestate_versioning_data(const fs::file& file)
{
if (!file)
{
return {};
}
file.seek(0);
if (u64 r = 0; !file.read(r) || r != "RPCS3SAV"_u64)
{
return {};
}
file.seek(10);
u64 offs = 0;
file.read(offs);
const usz fsize = file.size();
if (!offs || fsize <= offs)
{
return {};
}
file.seek(offs);
utils::serial ar;
ar.set_reading_state();
file.read(ar.data, fsize - offs);
return ar;
}
bool is_savestate_version_compatible(const std::vector<std::pair<u16, u16>>& data, bool log)
{
if (data.empty())
{
return false;
}
bool ok = true;
for (auto [identifier, version] : data)
{
if (identifier >= s_serial_versions.size())
{
(log ? sys_log.error : sys_log.trace)("Savestate version identider is unknown! (category=%u, version=%u)", identifier, version);
ok = false; // Log all mismatches
}
else if (!s_serial_versions[identifier].compatible_versions.count(version))
{
(log ? sys_log.error : sys_log.trace)("Savestate version is not supported. (category=%u, version=%u)", identifier, version);
ok = false;
}
else
{
s_serial_versions[identifier].current_version = version;
}
}
return ok;
}
bool is_savestate_compatible(const fs::file& file)
{
return is_savestate_version_compatible(get_savestate_versioning_data(file), false);
}
std::vector<std::pair<u16, u16>> read_used_savestate_versions()
{
std::vector<std::pair<u16, u16>> used_serial;
used_serial.reserve(s_serial_versions.size());
for (serial_ver_t& ver : s_serial_versions)
{
if (std::exchange(ver.used, false))
{
used_serial.emplace_back(&ver - s_serial_versions.data(), *ver.compatible_versions.rbegin());
}
}
return used_serial;
}
bool boot_last_savestate()
{
if (!g_cfg.savestate.suspend_emu && !Emu.GetTitleID().empty() && (Emu.IsRunning() || Emu.GetStatus() == system_state::paused))
{
extern bool is_savestate_compatible(const fs::file& file);
const std::string save_dir = fs::get_cache_dir() + "/savestates/";
std::string savestate_path;
u64 mtime = umax;
for (auto&& entry : fs::dir(save_dir))
{
if (entry.is_directory)
{
continue;
}
// Find the latest savestate file compatible with the game (TODO: Check app version and anything more)
if (entry.name.find(Emu.GetTitleID()) != umax && mtime < entry.mtime)
{
if (std::string path = save_dir + entry.name; is_savestate_compatible(fs::file(path)))
{
savestate_path = std::move(path);
mtime = entry.mtime;
}
}
}
if (fs::is_file(savestate_path))
{
sys_log.success("Booting the most recent savestate \'%s\' using the Reload shortcut.", savestate_path);
Emu.GracefulShutdown(false);
if (game_boot_result error = Emu.BootGame(savestate_path, "", true); error != game_boot_result::no_errors)
{
sys_log.error("Failed to booting savestate \'%s\' using the Reload shortcut. (error: %s)", savestate_path, error);
}
else
{
return true;
}
}
sys_log.error("No compatible savestate file found in \'%s\''", save_dir);
}
return false;
}