Emulator-Archive/duckstation
1
0
Fork 0
mirror of https://github.com/stenzek/duckstation.git synced 2024-11-27 08:00:36 +00:00
Code Issues Actions 1 Packages Projects Releases Wiki Activity

System: Rewrite save state I/O

Browse Source 
No more ByteStream or virtual calls for every piece of data.
This commit is contained in:
Stenzek 2024-07-29 16:23:39 +10:00
parent dd8bf2c9d9
commit a6518ff9dc
No known key found for this signature in database
14 changed files with 724 additions and 515 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
src/common/string_util.cpp
View File

@ -124,6 +124,12 @@ std::size_t StringUtil::Strlcpy(char* dst, const char* src, std::size_t size)
return len;
}
std::size_t StringUtil::Strnlen(const char* str, std::size_t max_size)
{
const char* loc = static_cast<const char*>(std::memchr(str, 0, max_size));
return loc ? static_cast<size_t>(loc - str) : max_size;
}
std::size_t StringUtil::Strlcpy(char* dst, const std::string_view src, std::size_t size)
{
std::size_t len = src.length();

3
src/common/string_util.h
View File

@ -35,6 +35,9 @@ std::size_t Strlcpy(char* dst, const char* src, std::size_t size);
/// Strlcpy from string_view.
std::size_t Strlcpy(char* dst, const std::string_view src, std::size_t size);
/// Bounds checked version of strlen.
std::size_t Strnlen(const char* str, std::size_t max_size);
/// Platform-independent strcasecmp
static inline int Strcasecmp(const char* s1, const char* s2)
{

4
src/core/CMakeLists.txt
View File

@ -136,8 +136,8 @@ set(NEWREC_SOURCES
target_precompile_headers(core PRIVATE "pch.h")
target_include_directories(core PRIVATE "${CMAKE_CURRENT_SOURCE_DIR}/..")
target_include_directories(core PUBLIC "${CMAKE_CURRENT_SOURCE_DIR}/..")
target_link_libraries(core PUBLIC Threads::Threads common util ZLIB::ZLIB)
target_link_libraries(core PRIVATE xxhash imgui rapidyaml rcheevos cpuinfo::cpuinfo)
target_link_libraries(core PUBLIC Threads::Threads common util)
target_link_libraries(core PRIVATE xxhash imgui rapidyaml rcheevos cpuinfo::cpuinfo ZLIB::ZLIB Zstd::Zstd)
if(CPU_ARCH_X64)
target_compile_definitions(core PUBLIC "ENABLE_RECOMPILER=1" "ENABLE_NEWREC=1" "ENABLE_MMAP_FASTMEM=1")

8
src/core/fullscreen_ui.cpp
View File

@ -5559,11 +5559,11 @@ bool FullscreenUI::InitializeSaveStateListEntryFromPath(SaveStateListEntry* li,
void FullscreenUI::PopulateSaveStateScreenshot(SaveStateListEntry* li, const ExtendedSaveStateInfo* ssi)
{
li->preview_texture.reset();
if (ssi && !ssi->screenshot_data.empty())
if (ssi && ssi->screenshot.IsValid())
{
li->preview_texture = g_gpu_device->FetchTexture(ssi->screenshot_width, ssi->screenshot_height, 1, 1, 1,
li->preview_texture = g_gpu_device->FetchTexture(ssi->screenshot.GetWidth(), ssi->screenshot.GetHeight(), 1, 1, 1,
GPUTexture::Type::Texture, GPUTexture::Format::RGBA8,
ssi->screenshot_data.data(), sizeof(u32) * ssi->screenshot_width);
ssi->screenshot.GetPixels(), ssi->screenshot.GetPitch());
}
else
{
@ -6112,7 +6112,7 @@ void FullscreenUI::DoLoadState(std::string path)
else
{
Error error;
if (!System::LoadState(path.c_str(), &error))
if (!System::LoadState(path.c_str(), &error, true))
{
ShowToast(std::string(),
fmt::format(TRANSLATE_FS("System", "Failed to load state: {}"), error.GetDescription()));

2
src/core/hotkeys.cpp
View File

@ -84,7 +84,7 @@ static void HotkeyLoadStateSlot(bool global, s32 slot)
}
Error error;
if (!System::LoadState(path.c_str(), &error))
if (!System::LoadState(path.c_str(), &error, true))
{
Host::AddKeyedOSDMessage(
"LoadState",

10
src/core/imgui_overlays.cpp
View File

@ -891,11 +891,11 @@ void SaveStateSelectorUI::InitializeListEntry(ListEntry* li, ExtendedSaveStateIn
{
g_gpu_device->RecycleTexture(std::move(li->preview_texture));
if (ssi && !ssi->screenshot_data.empty())
if (ssi->screenshot.IsValid())
{
li->preview_texture = g_gpu_device->FetchTexture(
ssi->screenshot_width, ssi->screenshot_height, 1, 1, 1, GPUTexture::Type::Texture, GPUTexture::Format::RGBA8,
ssi->screenshot_data.data(), sizeof(u32) * ssi->screenshot_width);
li->preview_texture = g_gpu_device->FetchTexture(ssi->screenshot.GetWidth(), ssi->screenshot.GetHeight(), 1, 1, 1,
GPUTexture::Type::Texture, GPUTexture::Format::RGBA8,
ssi->screenshot.GetPixels(), ssi->screenshot.GetPitch());
if (!li->preview_texture) [[unlikely]]
ERROR_LOG("Failed to upload save state image to GPU");
}
@ -1084,7 +1084,7 @@ void SaveStateSelectorUI::LoadCurrentSlot()
if (FileSystem::FileExists(path.c_str()))
{
Error error;
if (!System::LoadState(path.c_str(), &error))
if (!System::LoadState(path.c_str(), &error, true))
{
Host::AddKeyedOSDMessage("LoadState",
fmt::format(TRANSLATE_FS("OSDMessage", "Failed to load state from slot {0}:\n{1}"),

24
src/core/pad.cpp
View File

@ -133,7 +133,7 @@ static bool s_receive_buffer_full = false;
static bool s_transmit_buffer_full = false;
static u32 s_last_memory_card_transfer_frame = 0;
static std::unique_ptr<GrowableMemoryByteStream> s_memory_card_backup;
static DynamicHeapArray<u8> s_memory_card_backup;
static std::unique_ptr<MemoryCard> s_dummy_card;
} // namespace Pad
@ -145,7 +145,7 @@ void Pad::Initialize()
void Pad::Shutdown()
{
s_memory_card_backup.reset();
s_memory_card_backup.deallocate();
s_transfer_event.Deactivate();
@ -197,7 +197,7 @@ bool Pad::DoStateController(StateWrapper& sw, u32 i)
if (controller_type != state_controller_type)
{
const Controller::ControllerInfo* state_cinfo = Controller::GetControllerInfo(state_controller_type);
Assert(sw.GetMode() == StateWrapper::Mode::Read);
Assert(sw.IsReading());
// UI notification portion is separated from emulation portion (intentional condition check redundancy)
if (g_settings.load_devices_from_save_states)
@ -363,16 +363,10 @@ void Pad::BackupMemoryCardState()
{
DEV_LOG("Backing up memory card state.");
if (!s_memory_card_backup)
{
s_memory_card_backup =
std::make_unique<GrowableMemoryByteStream>(nullptr, MemoryCard::STATE_SIZE * NUM_CONTROLLER_AND_CARD_PORTS);
}
s_memory_card_backup->SeekAbsolute(0);
StateWrapper sw(s_memory_card_backup.get(), StateWrapper::Mode::Write, SAVE_STATE_VERSION);
if (s_memory_card_backup.empty())
s_memory_card_backup.resize(MemoryCard::STATE_SIZE * NUM_CONTROLLER_AND_CARD_PORTS);
StateWrapper sw(s_memory_card_backup.span(), StateWrapper::Mode::Write, SAVE_STATE_VERSION);
for (u32 i = 0; i < NUM_CONTROLLER_AND_CARD_PORTS; i++)
{
if (s_memory_cards[i])
@ -382,13 +376,11 @@ void Pad::BackupMemoryCardState()
void Pad::RestoreMemoryCardState()
{
DebugAssert(s_memory_card_backup);
DebugAssert(!s_memory_card_backup.empty());
VERBOSE_LOG("Restoring backed up memory card state.");
s_memory_card_backup->SeekAbsolute(0);
StateWrapper sw(s_memory_card_backup.get(), StateWrapper::Mode::Read, SAVE_STATE_VERSION);
StateWrapper sw(s_memory_card_backup.cspan(), StateWrapper::Mode::Read, SAVE_STATE_VERSION);
for (u32 i = 0; i < NUM_CONTROLLER_AND_CARD_PORTS; i++)
{
if (s_memory_cards[i])

2
src/core/pine_server.cpp
View File

@ -493,7 +493,7 @@ bool PINEServer::PINESocket::HandleCommand(IPCCommand command, BinarySpanReader
Host::RunOnCPUThread([state_filename = std::move(state_filename)] {
Error error;
if (!System::LoadState(state_filename.c_str(), &error))
if (!System::LoadState(state_filename.c_str(), &error, true))
ERROR_LOG("PINE: Load state failed: {}", error.GetDescription());
});

25
src/core/save_state_version.h
View File

@ -5,11 +5,18 @@
#include "types.h"
static constexpr u32 SAVE_STATE_MAGIC = 0x43435544;
static constexpr u32 SAVE_STATE_VERSION = 68;
static constexpr u32 SAVE_STATE_VERSION = 69;
static constexpr u32 SAVE_STATE_MINIMUM_VERSION = 42;
static_assert(SAVE_STATE_VERSION >= SAVE_STATE_MINIMUM_VERSION);
enum class SaveStateCompression : u32
{
None = 0,
ZLib = 1,
ZStd = 2,
};
#pragma pack(push, 4)
struct SAVE_STATE_HEADER
{
@ -17,10 +24,6 @@ struct SAVE_STATE_HEADER
{
MAX_TITLE_LENGTH = 128,
MAX_SERIAL_LENGTH = 32,
COMPRESSION_TYPE_NONE = 0,
COMPRESSION_TYPE_ZLIB = 1,
COMPRESSION_TYPE_ZSTD = 2,
};
u32 magic;
@ -28,14 +31,16 @@ struct SAVE_STATE_HEADER
char title[MAX_TITLE_LENGTH];
char serial[MAX_SERIAL_LENGTH];
u32 media_filename_length;
u32 offset_to_media_filename;
u32 media_path_length;
u32 offset_to_media_path;
u32 media_subimage_index;
u32 unused_offset_to_playlist_filename; // Unused as of version 51.
// Screenshot compression added in version 69.
// Uncompressed size not stored, it can be inferred from width/height.
u32 screenshot_compression_type;
u32 screenshot_width;
u32 screenshot_height;
u32 screenshot_size;
u32 screenshot_compressed_size;
u32 offset_to_screenshot;
u32 data_compression_type;

1024
src/core/system.cpp
View File

File diff suppressed because it is too large Load Diff

24
src/core/system.h
View File

@ -7,6 +7,8 @@
#include "timing_event.h"
#include "types.h"
#include "util/image.h"
#include "common/timer.h"
#include <memory>
@ -76,9 +78,7 @@ struct ExtendedSaveStateInfo
std::string media_path;
std::time_t timestamp;
u32 screenshot_width;
u32 screenshot_height;
std::vector<u32> screenshot_data;
RGBA8Image screenshot;
};
namespace System {
@ -263,23 +263,11 @@ bool BootSystem(SystemBootParameters parameters, Error* error);
void PauseSystem(bool paused);
void ResetSystem();
/// Loads state from the specified filename.
bool LoadState(const char* filename, Error* error);
bool SaveState(const char* filename, Error* error, bool backup_existing_save);
/// Loads state from the specified path.
bool LoadState(const char* path, Error* error, bool save_undo_state);
bool SaveState(const char* path, Error* error, bool backup_existing_save);
bool SaveResumeState(Error* error);
/// Memory save states - only for internal use.
struct MemorySaveState
{
std::unique_ptr<GPUTexture> vram_texture;
std::unique_ptr<GrowableMemoryByteStream> state_stream;
};
bool SaveMemoryState(MemorySaveState* mss);
bool LoadMemoryState(const MemorySaveState& mss);
bool LoadStateFromStream(ByteStream* stream, Error* error, bool update_display, bool ignore_media = false);
bool SaveStateToStream(ByteStream* state, Error* error, u32 screenshot_size = 256, u32 compression_method = 0,
bool ignore_media = false);
/// Runs the VM until the CPU execution is canceled.
void Execute();

2
src/duckstation-qt/qthost.cpp
View File

@ -840,7 +840,7 @@ void EmuThread::bootOrLoadState(std::string path)
if (System::IsValid())
{
Error error;
if (!System::LoadState(path.c_str(), &error))
if (!System::LoadState(path.c_str(), &error, true))
{
emit errorReported(tr("Error"),
tr("Failed to load state: %1").arg(QString::fromStdString(error.GetDescription())));

54
src/util/state_wrapper.cpp
View File

@ -8,24 +8,29 @@
#include <cstring>
Log_SetChannel(StateWrapper);
StateWrapper::StateWrapper(ByteStream* stream, Mode mode, u32 version)
: m_stream(stream), m_mode(mode), m_version(version)
StateWrapper::StateWrapper(std::span<u8> data, Mode mode, u32 version)
: m_data(data.data()), m_size(data.size()), m_mode(mode), m_version(version)
{
}
StateWrapper::StateWrapper(std::span<const u8> data, Mode mode, u32 version)
: m_data(const_cast<u8*>(data.data())), m_size(data.size()), m_mode(mode), m_version(version)
{
Assert(mode == Mode::Read);
}
StateWrapper::~StateWrapper() = default;
void StateWrapper::DoBytes(void* data, size_t length)
{
if (m_mode == Mode::Read)
{
if (m_error || (m_error |= !m_stream->Read2(data, static_cast<u32>(length))) == true)
if (!ReadData(data, length))
std::memset(data, 0, length);
}
else
{
if (!m_error)
m_error |= !m_stream->Write2(data, static_cast<u32>(length));
WriteData(data, length);
}
}
@ -45,15 +50,14 @@ void StateWrapper::Do(bool* value_ptr)
if (m_mode == Mode::Read)
{
u8 value = 0;
if (!m_error)
m_error |= !m_stream->ReadByte(&value);
if (!(m_error = m_error || (m_pos + 1) > m_size)) [[likely]]
value = m_data[m_pos++];
*value_ptr = (value != 0);
}
else
{
u8 value = static_cast<u8>(*value_ptr);
if (!m_error)
m_error |= !m_stream->WriteByte(value);
if (!(m_error = m_error || (m_pos + 1) > m_size)) [[likely]]
m_data[m_pos++] = static_cast<u8>(*value_ptr);
}
}
@ -62,7 +66,11 @@ void StateWrapper::Do(std::string* value_ptr)
u32 length = static_cast<u32>(value_ptr->length());
Do(&length);
if (m_mode == Mode::Read)
{
if ((m_error = (m_error || ((m_pos + length) > m_size)))) [[unlikely]]
return;
value_ptr->resize(length);
}
DoBytes(&(*value_ptr)[0], length);
value_ptr->resize(std::strlen(&(*value_ptr)[0]));
}
@ -72,7 +80,11 @@ void StateWrapper::Do(SmallStringBase* value_ptr)
u32 length = static_cast<u32>(value_ptr->length());
Do(&length);
if (m_mode == Mode::Read)
{
if ((m_error = (m_error || ((m_pos + length) > m_size)))) [[unlikely]]
return;
value_ptr->resize(length);
}
DoBytes(value_ptr->data(), length);
value_ptr->update_size();
}
@ -95,6 +107,26 @@ bool StateWrapper::DoMarker(const char* marker)
if (m_mode == Mode::Write || file_value.equals(marker))
return true;
ERROR_LOG("Marker mismatch at offset {}: found '{}' expected '{}'", m_stream->GetPosition(), file_value, marker);
ERROR_LOG("Marker mismatch at offset {}: found '{}' expected '{}'", m_pos, file_value, marker);
return false;
}
bool StateWrapper::ReadData(void* buf, size_t size)
{
if ((m_error = (m_error || (m_pos + size) > m_size))) [[unlikely]]
return false;
std::memcpy(buf, &m_data[m_pos], size);
m_pos += size;
return true;
}
bool StateWrapper::WriteData(const void* buf, size_t size)
{
if ((m_error = (m_error || (m_pos + size) > m_size))) [[unlikely]]
return false;
std::memcpy(&m_data[m_pos], buf, size);
m_pos += size;
return true;
}

51
src/util/state_wrapper.h
View File

@ -1,14 +1,16 @@
// SPDX-FileCopyrightText: 2019-2022 Connor McLaughlin <stenzek@gmail.com>
// SPDX-FileCopyrightText: 2019-2024 Connor McLaughlin <stenzek@gmail.com>
// SPDX-License-Identifier: (GPL-3.0 OR CC-BY-NC-ND-4.0)
#pragma once
#include "common/byte_stream.h"
#include "common/fifo_queue.h"
#include "common/heap_array.h"
#include "common/types.h"
#include <cstring>
#include <deque>
#include <string>
#include <span>
#include <type_traits>
#include <vector>
@ -23,17 +25,16 @@ public:
Write
};
StateWrapper(ByteStream* stream, Mode mode, u32 version);
StateWrapper(std::span<u8> data, Mode mode, u32 version);
StateWrapper(std::span<const u8> data, Mode mode, u32 version);
StateWrapper(const StateWrapper&) = delete;
~StateWrapper();
ByteStream* GetStream() const { return m_stream; }
bool HasError() const { return m_error; }
bool IsReading() const { return (m_mode == Mode::Read); }
bool IsWriting() const { return (m_mode == Mode::Write); }
Mode GetMode() const { return m_mode; }
void SetMode(Mode mode) { m_mode = mode; }
u32 GetVersion() const { return m_version; }
ALWAYS_INLINE bool HasError() const { return m_error; }
ALWAYS_INLINE bool IsReading() const { return (m_mode == Mode::Read); }
ALWAYS_INLINE bool IsWriting() const { return (m_mode == Mode::Write); }
ALWAYS_INLINE u32 GetVersion() const { return m_version; }
ALWAYS_INLINE size_t GetPosition() const { return m_pos; }
/// Overload for integral or floating-point types. Writes bytes as-is.
template<typename T, std::enable_if_t<std::is_integral_v<T> || std::is_floating_point_v<T>, int> = 0>
@ -41,13 +42,12 @@ public:
{
if (m_mode == Mode::Read)
{
if (m_error || (m_error |= !m_stream->Read2(value_ptr, sizeof(T))) == true)
if (!ReadData(value_ptr, sizeof(T))) [[unlikely]]
*value_ptr = static_cast<T>(0);
}
else
{
if (!m_error)
m_error |= !m_stream->Write2(value_ptr, sizeof(T));
WriteData(value_ptr, sizeof(T));
}
}
@ -59,17 +59,15 @@ public:
if (m_mode == Mode::Read)
{
TType temp;
if (m_error || (m_error |= !m_stream->Read2(&temp, sizeof(TType))) == true)
if (!ReadData(&temp, sizeof(temp))) [[unlikely]]
temp = static_cast<TType>(0);
*value_ptr = static_cast<T>(temp);
}
else
{
TType temp;
std::memcpy(&temp, value_ptr, sizeof(TType));
if (!m_error)
m_error |= !m_stream->Write2(&temp, sizeof(TType));
const TType temp = static_cast<TType>(*value_ptr);
WriteData(&temp, sizeof(temp));
}
}
@ -79,13 +77,12 @@ public:
{
if (m_mode == Mode::Read)
{
if (m_error || (m_error |= !m_stream->Read2(value_ptr, sizeof(T))) == true)
if (!ReadData(value_ptr, sizeof(T))) [[unlikely]]
std::memset(value_ptr, 0, sizeof(*value_ptr));
}
else
{
if (!m_error)
m_error |= !m_stream->Write2(value_ptr, sizeof(T));
WriteData(value_ptr, sizeof(T));
}
}
@ -201,12 +198,18 @@ public:
return;
}
if (!m_error)
m_error = !m_stream->SeekRelative(static_cast<s64>(count));
m_error = (m_error || (m_pos + count) > m_size);
if (!m_error) [[likely]]
m_pos += count;
}
private:
ByteStream* m_stream;
bool ReadData(void* buf, size_t size);
bool WriteData(const void* buf, size_t size);
u8* m_data;
size_t m_size;
size_t m_pos = 0;
Mode m_mode;
u32 m_version;
bool m_error = false;