piwalker/dolphin
1
0
Fork 0
mirror of https://github.com/dolphin-emu/dolphin.git synced 2025-07-23 06:09:50 -06:00
Code Issues Packages Projects Releases Wiki Activity

DVDInterface/DVDThread: Don't store CoreTiming event IDs in savestates

Browse Source 
CoreTiming event types aren't guaranteed to be stable across
runs of Dolphin, so they shouldn't be in savestates.
This commit is contained in:
JosJuice
2016-03-30 21:45:56 +02:00
parent 2063fc671a
commit be191c0473
6 changed files with 74 additions and 65 deletions
Download Patch File Download Diff File Expand all files Collapse all files

97
Source/Core/Core/HW/DVDInterface.cpp
View File

@ -25,6 +25,8 @@
#include "Core/HW/ProcessorInterface.h"
#include "Core/HW/StreamADPCM.h"
#include "Core/HW/SystemTimers.h"
#include "Core/IPC_HLE/WII_IPC_HLE.h"
#include "Core/IPC_HLE/WII_IPC_HLE_Device_DI.h"
#include "DiscIO/Volume.h"
#include "DiscIO/VolumeCreator.h"
@ -244,7 +246,7 @@ static u32 s_error_code = 0;
static bool s_disc_inside = false;
static bool s_stream = false;
static bool s_stop_at_track_end = false;
static int s_finish_execute_command = 0;
static int s_finish_executing_command = 0;
static int s_dtk = 0;
static u64 s_last_read_offset;
@ -258,15 +260,16 @@ static int s_insert_disc;
static void EjectDiscCallback(u64 userdata, s64 cyclesLate);
static void InsertDiscCallback(u64 userdata, s64 cyclesLate);
static void FinishExecutingCommandCallback(u64 userdata, s64 cycles_late);
void SetLidOpen(bool _bOpen);
void UpdateInterrupts();
void GenerateDIInterrupt(DIInterruptType _DVDInterrupt);
void WriteImmediate(u32 value, u32 output_address, bool write_to_DIIMMBUF);
void WriteImmediate(u32 value, u32 output_address, bool reply_to_ios);
bool ExecuteReadCommand(u64 DVD_offset, u32 output_address, u32 DVD_length, u32 output_length, bool decrypt,
int callback_event_type, DIInterruptType* interrupt_type, u64* ticks_until_completion);
bool reply_to_ios, DIInterruptType* interrupt_type, u64* ticks_until_completion);
u64 SimulateDiscReadTime(u64 offset, u32 length);
s64 CalculateRawDiscReadTime(u64 offset, s64 length);
@ -301,16 +304,6 @@ void DoState(PointerWrap &p)
DVDThread::DoState(p);
}
static void FinishExecuteCommand(u64 userdata, s64 cyclesLate)
{
if (s_DICR.TSTART)
{
s_DICR.TSTART = 0;
s_DILENGTH.Length = 0;
GenerateDIInterrupt((DIInterruptType)userdata);
}
}
static u32 ProcessDTKSamples(short *tempPCM, u32 num_samples)
{
// TODO: Read audio data using the DVD thread instead of blocking on it?
@ -408,7 +401,7 @@ void Init()
s_eject_disc = CoreTiming::RegisterEvent("EjectDisc", EjectDiscCallback);
s_insert_disc = CoreTiming::RegisterEvent("InsertDisc", InsertDiscCallback);
s_finish_execute_command = CoreTiming::RegisterEvent("FinishExecuteCommand", FinishExecuteCommand);
s_finish_executing_command = CoreTiming::RegisterEvent("FinishExecutingCommand", FinishExecutingCommandCallback);
s_dtk = CoreTiming::RegisterEvent("StreamingTimer", DTKStreamingCallback);
CoreTiming::ScheduleEvent(0, s_dtk);
@ -589,7 +582,7 @@ void RegisterMMIO(MMIO::Mapping* mmio, u32 base)
if (s_DICR.TSTART)
{
ExecuteCommand(s_DICMDBUF[0].Hex, s_DICMDBUF[1].Hex, s_DICMDBUF[2].Hex,
s_DIMAR.Hex, s_DILENGTH.Hex, true, s_finish_execute_command);
s_DIMAR.Hex, s_DILENGTH.Hex, false);
}
})
);
@ -637,17 +630,17 @@ void GenerateDIInterrupt(DIInterruptType dvd_interrupt)
UpdateInterrupts();
}
void WriteImmediate(u32 value, u32 output_address, bool write_to_DIIMMBUF)
void WriteImmediate(u32 value, u32 output_address, bool reply_to_ios)
{
if (write_to_DIIMMBUF)
s_DIIMMBUF.Hex = value;
else
if (reply_to_ios)
Memory::Write_U32(value, output_address);
else
s_DIIMMBUF.Hex = value;
}
// Iff false is returned, ScheduleEvent must be used to finish executing the command
bool ExecuteReadCommand(u64 DVD_offset, u32 output_address, u32 DVD_length, u32 output_length, bool decrypt,
int callback_event_type, DIInterruptType* interrupt_type, u64* ticks_until_completion)
bool reply_to_ios, DIInterruptType* interrupt_type, u64* ticks_until_completion)
{
if (!s_disc_inside)
{
@ -675,15 +668,15 @@ bool ExecuteReadCommand(u64 DVD_offset, u32 output_address, u32 DVD_length, u32
*ticks_until_completion = SimulateDiscReadTime(DVD_offset, DVD_length);
DVDThread::StartRead(DVD_offset, output_address, DVD_length, decrypt,
callback_event_type, (int)*ticks_until_completion);
reply_to_ios, (int)*ticks_until_completion);
return true;
}
// When the command has finished executing, callback_event_type
// will be called using CoreTiming::ScheduleEvent,
// with the userdata set to the interrupt type.
void ExecuteCommand(u32 command_0, u32 command_1, u32 command_2, u32 output_address, u32 output_length,
bool write_to_DIIMMBUF, int callback_event_type)
void ExecuteCommand(u32 command_0, u32 command_1, u32 command_2, u32 output_address,
u32 output_length, bool reply_to_ios)
{
DIInterruptType interrupt_type = INT_TCINT;
u64 ticks_until_completion = SystemTimers::GetTicksPerSecond() / 15000;
@ -713,7 +706,7 @@ void ExecuteCommand(u32 command_0, u32 command_1, u32 command_2, u32 output_addr
{
// 0x29484100...
// was 21 i'm not entirely sure about this, but it works well.
WriteImmediate(0x21000000, output_address, write_to_DIIMMBUF);
WriteImmediate(0x21000000, output_address, reply_to_ios);
}
else
{
@ -733,14 +726,14 @@ void ExecuteCommand(u32 command_0, u32 command_1, u32 command_2, u32 output_addr
case DVDLowReadDiskID:
INFO_LOG(DVDINTERFACE, "DVDLowReadDiskID");
command_handled_by_thread = ExecuteReadCommand(0, output_address, 0x20, output_length, false,
callback_event_type, &interrupt_type, &ticks_until_completion);
reply_to_ios, &interrupt_type, &ticks_until_completion);
break;
// Only used from WII_IPC. This is the only read command that decrypts data
case DVDLowRead:
INFO_LOG(DVDINTERFACE, "DVDLowRead: DVDAddr: 0x%09" PRIx64 ", Size: 0x%x", (u64)command_2 << 2, command_1);
command_handled_by_thread = ExecuteReadCommand((u64)command_2 << 2, output_address, command_1, output_length, true,
callback_event_type, &interrupt_type, &ticks_until_completion);
reply_to_ios, &interrupt_type, &ticks_until_completion);
break;
// Probably only used by Wii
@ -756,7 +749,7 @@ void ExecuteCommand(u32 command_0, u32 command_1, u32 command_2, u32 output_addr
// Probably only used though WII_IPC
case DVDLowGetCoverReg:
WriteImmediate(s_DICVR.Hex, output_address, write_to_DIIMMBUF);
WriteImmediate(s_DICVR.Hex, output_address, reply_to_ios);
INFO_LOG(DVDINTERFACE, "DVDLowGetCoverReg 0x%08x", s_DICVR.Hex);
break;
@ -789,7 +782,7 @@ void ExecuteCommand(u32 command_0, u32 command_1, u32 command_2, u32 output_addr
// Probably only used by Wii
case DVDLowGetCoverStatus:
WriteImmediate(s_disc_inside ? 2 : 1, output_address, write_to_DIIMMBUF);
WriteImmediate(s_disc_inside ? 2 : 1, output_address, reply_to_ios);
INFO_LOG(DVDINTERFACE, "DVDLowGetCoverStatus: Disc %sInserted", s_disc_inside ? "" : "Not ");
break;
@ -820,7 +813,7 @@ void ExecuteCommand(u32 command_0, u32 command_1, u32 command_2, u32 output_addr
(((command_2 + command_1) > 0x7ed40000) && (command_2 + command_1) < 0x7ed40008)))
{
command_handled_by_thread = ExecuteReadCommand((u64)command_2 << 2, output_address, command_1, output_length, false,
callback_event_type, &interrupt_type, &ticks_until_completion);
reply_to_ios, &interrupt_type, &ticks_until_completion);
}
else
{
@ -917,14 +910,14 @@ void ExecuteCommand(u32 command_0, u32 command_1, u32 command_2, u32 output_addr
}
command_handled_by_thread = ExecuteReadCommand(iDVDOffset, output_address, command_2, output_length, false,
callback_event_type, &interrupt_type, &ticks_until_completion);
reply_to_ios, &interrupt_type, &ticks_until_completion);
}
break;
case 0x40: // Read DiscID
INFO_LOG(DVDINTERFACE, "Read DiscID %08x", Memory::Read_U32(output_address));
command_handled_by_thread = ExecuteReadCommand(0, output_address, 0x20, output_length, false,
callback_event_type, &interrupt_type, &ticks_until_completion);
reply_to_ios, &interrupt_type, &ticks_until_completion);
break;
default:
@ -1060,7 +1053,7 @@ void ExecuteCommand(u32 command_0, u32 command_1, u32 command_2, u32 output_addr
break;
}
memset(s_media_buffer + 0x20, 0, 0x20);
WriteImmediate(0x66556677, output_address, write_to_DIIMMBUF); // just a random value that works.
WriteImmediate(0x66556677, output_address, reply_to_ios); // just a random value that works.
}
break;
@ -1105,7 +1098,7 @@ void ExecuteCommand(u32 command_0, u32 command_1, u32 command_2, u32 output_addr
// Used by both GC and Wii
case DVDLowRequestError:
INFO_LOG(DVDINTERFACE, "Requesting error... (0x%08x)", s_error_code);
WriteImmediate(s_error_code, output_address, write_to_DIIMMBUF);
WriteImmediate(s_error_code, output_address, reply_to_ios);
s_error_code = 0;
break;
@ -1162,19 +1155,19 @@ void ExecuteCommand(u32 command_0, u32 command_1, u32 command_2, u32 output_addr
case 0x00: // Returns streaming status
INFO_LOG(DVDINTERFACE, "(Audio): Stream Status: Request Audio status AudioPos:%08x/%08x CurrentStart:%08x CurrentLength:%08x",
s_audio_position, s_current_start + s_current_length, s_current_start, s_current_length);
WriteImmediate(s_stream ? 1 : 0, output_address, write_to_DIIMMBUF);
WriteImmediate(s_stream ? 1 : 0, output_address, reply_to_ios);
break;
case 0x01: // Returns the current offset
INFO_LOG(DVDINTERFACE, "(Audio): Stream Status: Request Audio status AudioPos:%08x", s_audio_position);
WriteImmediate(s_audio_position >> 2, output_address, write_to_DIIMMBUF);
WriteImmediate(s_audio_position >> 2, output_address, reply_to_ios);
break;
case 0x02: // Returns the start offset
INFO_LOG(DVDINTERFACE, "(Audio): Stream Status: Request Audio status CurrentStart:%08x", s_current_start);
WriteImmediate(s_current_start >> 2, output_address, write_to_DIIMMBUF);
WriteImmediate(s_current_start >> 2, output_address, reply_to_ios);
break;
case 0x03: // Returns the total length
INFO_LOG(DVDINTERFACE, "(Audio): Stream Status: Request Audio status CurrentLength:%08x", s_current_length);
WriteImmediate(s_current_length >> 2, output_address, write_to_DIIMMBUF);
WriteImmediate(s_current_length >> 2, output_address, reply_to_ios);
break;
default:
WARN_LOG(DVDINTERFACE, "(Audio): Subcommand: %02x Request Audio status %s", command_0 >> 16 & 0xFF, s_stream ? "on" : "off");
@ -1263,7 +1256,35 @@ void ExecuteCommand(u32 command_0, u32 command_1, u32 command_2, u32 output_addr
// The command will finish executing after a delay
// to simulate the speed of a real disc drive
if (!command_handled_by_thread)
CoreTiming::ScheduleEvent((int)ticks_until_completion, callback_event_type, interrupt_type);
{
u64 userdata = (static_cast<u64>(reply_to_ios) << 32) + static_cast<u32>(interrupt_type);
CoreTiming::ScheduleEvent((int)ticks_until_completion, s_finish_executing_command, userdata);
}
}
void FinishExecutingCommandCallback(u64 userdata, s64 cycles_late)
{
bool reply_to_ios = userdata >> 32 != 0;
DIInterruptType interrupt_type = static_cast<DIInterruptType>(userdata & 0xFFFFFFFF);
FinishExecutingCommand(reply_to_ios, interrupt_type);
}
void FinishExecutingCommand(bool reply_to_ios, DIInterruptType interrupt_type)
{
if (reply_to_ios)
{
std::shared_ptr<IWII_IPC_HLE_Device> di = WII_IPC_HLE_Interface::GetDeviceByName("/dev/di");
if (di)
std::static_pointer_cast<CWII_IPC_HLE_Device_di>(di)->FinishIOCtl(interrupt_type);
// If di == nullptr, IOS was probably shut down, so the command shouldn't be completed
}
else if (s_DICR.TSTART)
{
s_DICR.TSTART = 0;
s_DILENGTH.Length = 0;
GenerateDIInterrupt(interrupt_type);
}
}
// Simulates the timing aspects of reading data from a disc.

5
Source/Core/Core/HW/DVDInterface.h
View File

@ -106,7 +106,8 @@ void ChangeDisc(const std::string& fileName);
// DVD Access Functions
bool ChangePartition(u64 offset);
void ExecuteCommand(u32 command_0, u32 command_1, u32 command_2, u32 output_address, u32 output_length,
bool write_to_DIIMMBUF, int callback_event_type);
void ExecuteCommand(u32 command_0, u32 command_1, u32 command_2, u32 output_address,
u32 output_length, bool reply_to_ios);
void FinishExecutingCommand(bool reply_to_ios, DIInterruptType interrupt_type);
} // end of namespace DVDInterface

18
Source/Core/Core/HW/DVDThread.cpp
View File

@ -30,7 +30,7 @@ namespace DVDThread
static void DVDThread();
static void FinishRead(u64 userdata, s64 cyclesLate);
static void FinishRead(u64 userdata, s64 cycles_late);
static int s_finish_read;
static std::thread s_dvd_thread;
@ -47,9 +47,9 @@ static u32 s_output_address;
static u32 s_length;
static bool s_decrypt;
// Used to notify emulated software after executing command.
// Pointers don't work with savestates, so CoreTiming events are used instead
static int s_callback_event_type;
// This determines which function will be used as a callback.
// We can't have a function pointer here, because they can't be in savestates.
static bool s_reply_to_ios;
// The following time variables are only used for logging
static u64 s_realtime_started_us;
@ -89,7 +89,7 @@ void DoState(PointerWrap &p)
p.Do(s_output_address);
p.Do(s_length);
p.Do(s_decrypt);
p.Do(s_callback_event_type);
p.Do(s_reply_to_ios);
// s_realtime_started_us and s_realtime_done_us aren't savestated
// because they rely on the current system's time.
@ -109,7 +109,7 @@ void WaitUntilIdle()
}
void StartRead(u64 dvd_offset, u32 output_address, u32 length, bool decrypt,
int callback_event_type, int ticks_until_completion)
bool reply_to_ios, int ticks_until_completion)
{
_assert_(Core::IsCPUThread());
@ -119,7 +119,7 @@ void StartRead(u64 dvd_offset, u32 output_address, u32 length, bool decrypt,
s_output_address = output_address;
s_length = length;
s_decrypt = decrypt;
s_callback_event_type = callback_event_type;
s_reply_to_ios = reply_to_ios;
s_time_read_started = CoreTiming::GetTicks();
s_realtime_started_us = Common::Timer::GetTimeUs();
@ -129,7 +129,7 @@ void StartRead(u64 dvd_offset, u32 output_address, u32 length, bool decrypt,
CoreTiming::ScheduleEvent(ticks_until_completion, s_finish_read);
}
static void FinishRead(u64 userdata, s64 cyclesLate)
static void FinishRead(u64 userdata, s64 cycles_late)
{
WaitUntilIdle();
@ -151,7 +151,7 @@ static void FinishRead(u64 userdata, s64 cyclesLate)
s_dvd_buffer.resize(0);
// Notify the emulated software that the command has been executed
CoreTiming::ScheduleEvent_Immediate(s_callback_event_type, DVDInterface::INT_TCINT);
DVDInterface::FinishExecutingCommand(s_reply_to_ios, DVDInterface::INT_TCINT);
}
static void DVDThread()

2
Source/Core/Core/HW/DVDThread.h
View File

@ -16,6 +16,6 @@ void DoState(PointerWrap &p);
void WaitUntilIdle();
void StartRead(u64 dvd_offset, u32 output_address, u32 length, bool decrypt,
int callback_event_type, int ticks_until_completion);
bool reply_to_ios, int ticks_until_completion);
}

15
Source/Core/Core/IPC_HLE/WII_IPC_HLE_Device_DI.cpp
View File

@ -16,21 +16,9 @@
#include "Core/IPC_HLE/WII_IPC_HLE.h"
#include "Core/IPC_HLE/WII_IPC_HLE_Device_DI.h"
static int ioctl_callback;
static void IOCtlCallback(u64 userdata, s64 cycles_late)
{
std::shared_ptr<IWII_IPC_HLE_Device> di = WII_IPC_HLE_Interface::GetDeviceByName("/dev/di");
if (di)
std::static_pointer_cast<CWII_IPC_HLE_Device_di>(di)->FinishIOCtl((DVDInterface::DIInterruptType)userdata);
// If di == nullptr, IOS was probably shut down, so the command shouldn't be completed
}
CWII_IPC_HLE_Device_di::CWII_IPC_HLE_Device_di(u32 _DeviceID, const std::string& _rDeviceName)
: IWII_IPC_HLE_Device(_DeviceID, _rDeviceName)
{
ioctl_callback = CoreTiming::RegisterEvent("IOCtlCallbackDI", IOCtlCallback);
}
CWII_IPC_HLE_Device_di::~CWII_IPC_HLE_Device_di()
@ -101,8 +89,7 @@ void CWII_IPC_HLE_Device_di::StartIOCtl(u32 command_address)
// DVDInterface's ExecuteCommand handles most of the work.
// The IOCtl callback is used to generate a reply afterwards.
DVDInterface::ExecuteCommand(command_0, command_1, command_2, BufferOut, BufferOutSize,
false, ioctl_callback);
DVDInterface::ExecuteCommand(command_0, command_1, command_2, BufferOut, BufferOutSize, true);
}
void CWII_IPC_HLE_Device_di::FinishIOCtl(DVDInterface::DIInterruptType interrupt_type)

2
Source/Core/Core/State.cpp
View File

@ -71,7 +71,7 @@ static Common::Event g_compressAndDumpStateSyncEvent;
static std::thread g_save_thread;
// Don't forget to increase this after doing changes on the savestate system
static const u32 STATE_VERSION = 52; // Last changed in PR 3667
static const u32 STATE_VERSION = 53; // Last changed in PR 3759
// Maps savestate versions to Dolphin versions.
// Versions after 42 don't need to be added to this list,