mirror of https://github.com/PCSX2/pcsx2.git
361 lines
9.3 KiB
C++
361 lines
9.3 KiB
C++
/* PCSX2 - PS2 Emulator for PCs
|
|
* Copyright (C) 2002-2010 PCSX2 Dev Team
|
|
*
|
|
* PCSX2 is free software: you can redistribute it and/or modify it under the terms
|
|
* of the GNU Lesser General Public License as published by the Free Software Found-
|
|
* ation, either version 3 of the License, or (at your option) any later version.
|
|
*
|
|
* PCSX2 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. See the GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along with PCSX2.
|
|
* If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
|
|
#include "PrecompiledHeader.h"
|
|
#include "IopCommon.h"
|
|
#include "SaveState.h"
|
|
|
|
#include "ps2/BiosTools.h"
|
|
#include "COP0.h"
|
|
#include "VUmicro.h"
|
|
#include "MTVU.h"
|
|
#include "Cache.h"
|
|
#include "AppConfig.h"
|
|
|
|
#include "Elfheader.h"
|
|
#include "Counters.h"
|
|
|
|
#include "Utilities/SafeArray.inl"
|
|
|
|
using namespace R5900;
|
|
|
|
|
|
static void PreLoadPrep()
|
|
{
|
|
SysClearExecutionCache();
|
|
}
|
|
|
|
static void PostLoadPrep()
|
|
{
|
|
memzero(pCache);
|
|
// WriteCP0Status(cpuRegs.CP0.n.Status.val);
|
|
for(int i=0; i<48; i++) MapTLB(i);
|
|
|
|
UpdateVSyncRate();
|
|
}
|
|
|
|
// --------------------------------------------------------------------------------------
|
|
// SaveStateBase (implementations)
|
|
// --------------------------------------------------------------------------------------
|
|
wxString SaveStateBase::GetFilename( int slot )
|
|
{
|
|
wxString serialName( DiscSerial );
|
|
if (serialName.IsEmpty()) serialName = L"BIOS";
|
|
|
|
return (g_Conf->Folders.Savestates +
|
|
pxsFmt( L"%s (%08X).%02d.p2s", serialName.c_str(), ElfCRC, slot )).GetFullPath();
|
|
|
|
//return (g_Conf->Folders.Savestates +
|
|
// pxsFmt( L"%08X.%03d", ElfCRC, slot )).GetFullPath();
|
|
}
|
|
|
|
SaveStateBase::SaveStateBase( SafeArray<u8>& memblock )
|
|
{
|
|
Init( &memblock );
|
|
}
|
|
|
|
SaveStateBase::SaveStateBase( SafeArray<u8>* memblock )
|
|
{
|
|
Init( memblock );
|
|
}
|
|
|
|
void SaveStateBase::Init( SafeArray<u8>* memblock )
|
|
{
|
|
m_memory = memblock;
|
|
m_version = g_SaveVersion;
|
|
m_idx = 0;
|
|
m_DidBios = false;
|
|
}
|
|
|
|
void SaveStateBase::PrepBlock( int size )
|
|
{
|
|
pxAssertDev( m_memory, "Savestate memory/buffer pointer is null!" );
|
|
|
|
const int end = m_idx+size;
|
|
if( IsSaving() )
|
|
m_memory->MakeRoomFor( end );
|
|
else
|
|
{
|
|
if( m_memory->GetSizeInBytes() < end )
|
|
throw Exception::SaveStateLoadError();
|
|
}
|
|
}
|
|
|
|
void SaveStateBase::FreezeTag( const char* src )
|
|
{
|
|
const uint allowedlen = sizeof( m_tagspace )-1;
|
|
pxAssertDev( strlen(src) < allowedlen, pxsFmt( L"Tag name exceeds the allowed length of %d chars.", allowedlen) );
|
|
|
|
memzero( m_tagspace );
|
|
strcpy( m_tagspace, src );
|
|
Freeze( m_tagspace );
|
|
|
|
if( strcmp( m_tagspace, src ) != 0 )
|
|
{
|
|
wxString msg( L"Savestate data corruption detected while reading tag: " + fromUTF8(src) );
|
|
pxFail( msg );
|
|
throw Exception::SaveStateLoadError().SetDiagMsg(msg);
|
|
}
|
|
}
|
|
|
|
SaveStateBase& SaveStateBase::FreezeBios()
|
|
{
|
|
FreezeTag( "BIOS" );
|
|
|
|
// Check the BIOS, and issue a warning if the bios for this state
|
|
// doesn't match the bios currently being used (chances are it'll still
|
|
// work fine, but some games are very picky).
|
|
|
|
u32 bioscheck = BiosChecksum;
|
|
char biosdesc[256];
|
|
|
|
pxToUTF8 utf8(BiosDescription);
|
|
|
|
memzero( biosdesc );
|
|
memcpy_fast( biosdesc, utf8, std::min( sizeof(biosdesc), utf8.Length() ) );
|
|
|
|
Freeze( bioscheck );
|
|
Freeze( biosdesc );
|
|
|
|
if (bioscheck != BiosChecksum)
|
|
{
|
|
Console.Newline();
|
|
Console.Indent(1).Error( "Warning: BIOS Version Mismatch, savestate may be unstable!" );
|
|
Console.Indent(2).Error(
|
|
"Current BIOS: %ls (crc=0x%08x)\n"
|
|
"Savestate BIOS: %s (crc=0x%08x)\n",
|
|
BiosDescription.c_str(), BiosChecksum,
|
|
biosdesc, bioscheck
|
|
);
|
|
}
|
|
|
|
return *this;
|
|
}
|
|
|
|
static const uint MainMemorySizeInBytes =
|
|
Ps2MemSize::MainRam + Ps2MemSize::Scratch + Ps2MemSize::Hardware +
|
|
Ps2MemSize::IopRam + Ps2MemSize::IopHardware;
|
|
|
|
SaveStateBase& SaveStateBase::FreezeMainMemory()
|
|
{
|
|
vu1Thread.WaitVU(); // Finish VU1 just in-case...
|
|
if (IsLoading()) PreLoadPrep();
|
|
else m_memory->MakeRoomFor( m_idx + MainMemorySizeInBytes );
|
|
|
|
// First Block - Memory Dumps
|
|
// ---------------------------
|
|
FreezeMem(eeMem->Main, Ps2MemSize::MainRam); // 32 MB main memory
|
|
FreezeMem(eeMem->Scratch, Ps2MemSize::Scratch); // scratch pad
|
|
FreezeMem(eeHw, Ps2MemSize::Hardware); // hardware memory
|
|
|
|
FreezeMem(iopMem->Main, Ps2MemSize::IopRam); // 2 MB main memory
|
|
FreezeMem(iopHw, Ps2MemSize::IopHardware); // hardware memory
|
|
|
|
FreezeMem(vuRegs[0].Micro, VU0_PROGSIZE);
|
|
FreezeMem(vuRegs[0].Mem, VU0_MEMSIZE);
|
|
|
|
FreezeMem(vuRegs[1].Micro, VU1_PROGSIZE);
|
|
FreezeMem(vuRegs[1].Mem, VU1_MEMSIZE);
|
|
|
|
return *this;
|
|
}
|
|
|
|
SaveStateBase& SaveStateBase::FreezeInternals()
|
|
{
|
|
vu1Thread.WaitVU(); // Finish VU1 just in-case...
|
|
if (IsLoading()) PreLoadPrep();
|
|
|
|
// Second Block - Various CPU Registers and States
|
|
// -----------------------------------------------
|
|
FreezeTag( "cpuRegs" );
|
|
Freeze(cpuRegs); // cpu regs + COP0
|
|
Freeze(psxRegs); // iop regs
|
|
Freeze(fpuRegs);
|
|
Freeze(tlb); // tlbs
|
|
|
|
// Third Block - Cycle Timers and Events
|
|
// -------------------------------------
|
|
FreezeTag( "Cycles" );
|
|
Freeze(EEsCycle);
|
|
Freeze(EEoCycle);
|
|
Freeze(g_nextEventCycle);
|
|
Freeze(g_iopNextEventCycle);
|
|
Freeze(s_iLastCOP0Cycle);
|
|
Freeze(s_iLastPERFCycle);
|
|
|
|
// Fourth Block - EE-related systems
|
|
// ---------------------------------
|
|
FreezeTag( "EE-Subsystems" );
|
|
rcntFreeze();
|
|
gsFreeze();
|
|
vuMicroFreeze();
|
|
vif0Freeze();
|
|
vif1Freeze();
|
|
sifFreeze();
|
|
ipuFreeze();
|
|
ipuDmaFreeze();
|
|
gifFreeze();
|
|
gifDmaFreeze();
|
|
sprFreeze();
|
|
|
|
// Fifth Block - iop-related systems
|
|
// ---------------------------------
|
|
FreezeTag( "IOP-Subsystems" );
|
|
FreezeMem(iopMem->Sif, sizeof(iopMem->Sif)); // iop's sif memory (not really needed, but oh well)
|
|
|
|
#ifdef ENABLE_NEW_IOPDMA
|
|
iopDmacFreeze();
|
|
#endif
|
|
psxRcntFreeze();
|
|
sioFreeze();
|
|
sio2Freeze();
|
|
cdrFreeze();
|
|
cdvdFreeze();
|
|
|
|
// technically this is HLE BIOS territory, but we don't have enough such stuff
|
|
// to merit an HLE Bios sub-section... yet.
|
|
deci2Freeze();
|
|
|
|
if( IsLoading() )
|
|
PostLoadPrep();
|
|
|
|
return *this;
|
|
}
|
|
|
|
SaveStateBase& SaveStateBase::FreezePlugins()
|
|
{
|
|
for (uint i=0; i<PluginId_Count; ++i)
|
|
{
|
|
FreezeTag( FastFormatAscii().Write("Plugin:%s", tbl_PluginInfo[i].shortname) );
|
|
GetCorePlugins().Freeze( (PluginsEnum_t)i, *this );
|
|
}
|
|
|
|
return *this;
|
|
}
|
|
|
|
SaveStateBase& SaveStateBase::FreezeAll()
|
|
{
|
|
FreezeMainMemory();
|
|
FreezeBios();
|
|
FreezeInternals();
|
|
FreezePlugins();
|
|
|
|
return *this;
|
|
}
|
|
|
|
|
|
// --------------------------------------------------------------------------------------
|
|
// memSavingState (implementations)
|
|
// --------------------------------------------------------------------------------------
|
|
// uncompressed to/from memory state saves implementation
|
|
|
|
memSavingState::memSavingState( SafeArray<u8>& save_to )
|
|
: SaveStateBase( save_to )
|
|
{
|
|
}
|
|
|
|
memSavingState::memSavingState( SafeArray<u8>* save_to )
|
|
: SaveStateBase( save_to )
|
|
{
|
|
}
|
|
|
|
// Saving of state data
|
|
void memSavingState::FreezeMem( void* data, int size )
|
|
{
|
|
if (!size) return;
|
|
|
|
m_memory->MakeRoomFor( m_idx + size );
|
|
memcpy_fast( m_memory->GetPtr(m_idx), data, size );
|
|
m_idx += size;
|
|
}
|
|
|
|
void memSavingState::MakeRoomForData()
|
|
{
|
|
pxAssertDev( m_memory, "Savestate memory/buffer pointer is null!" );
|
|
|
|
m_memory->ChunkSize = ReallocThreshold;
|
|
m_memory->MakeRoomFor( m_idx + MemoryBaseAllocSize );
|
|
}
|
|
|
|
// Saving of state data to a memory buffer
|
|
memSavingState& memSavingState::FreezeAll()
|
|
{
|
|
MakeRoomForData();
|
|
_parent::FreezeAll();
|
|
return *this;
|
|
}
|
|
|
|
// --------------------------------------------------------------------------------------
|
|
// memLoadingState (implementations)
|
|
// --------------------------------------------------------------------------------------
|
|
memLoadingState::memLoadingState( const SafeArray<u8>& load_from )
|
|
: SaveStateBase( const_cast<SafeArray<u8>&>(load_from) )
|
|
{
|
|
}
|
|
|
|
memLoadingState::memLoadingState( const SafeArray<u8>* load_from )
|
|
: SaveStateBase( const_cast<SafeArray<u8>*>(load_from) )
|
|
{
|
|
}
|
|
|
|
memLoadingState::~memLoadingState() throw() { }
|
|
|
|
// Loading of state data from a memory buffer...
|
|
void memLoadingState::FreezeMem( void* data, int size )
|
|
{
|
|
const u8* const src = m_memory->GetPtr(m_idx);
|
|
m_idx += size;
|
|
memcpy_fast( data, src, size );
|
|
}
|
|
|
|
// --------------------------------------------------------------------------------------
|
|
// SaveState Exception Messages
|
|
// --------------------------------------------------------------------------------------
|
|
|
|
wxString Exception::UnsupportedStateVersion::FormatDiagnosticMessage() const
|
|
{
|
|
// Note: no stacktrace needed for this one...
|
|
return pxsFmt( L"Unknown or unsupported savestate version: 0x%x", Version );
|
|
}
|
|
|
|
wxString Exception::UnsupportedStateVersion::FormatDisplayMessage() const
|
|
{
|
|
// m_message_user contains a recoverable savestate error which is helpful to the user.
|
|
return
|
|
m_message_user + L"\n\n" +
|
|
pxsFmt( _("Cannot load savestate. It is of an unknown or unsupported version."), Version );
|
|
}
|
|
|
|
wxString Exception::StateCrcMismatch::FormatDiagnosticMessage() const
|
|
{
|
|
// Note: no stacktrace needed for this one...
|
|
return pxsFmt(
|
|
L"Game/CDVD does not match the savestate CRC.\n"
|
|
L"\tCdvd CRC: 0x%X\n\tGame CRC: 0x%X\n",
|
|
Crc_Savestate, Crc_Cdvd
|
|
);
|
|
}
|
|
|
|
wxString Exception::StateCrcMismatch::FormatDisplayMessage() const
|
|
{
|
|
return
|
|
m_message_user + L"\n\n" +
|
|
pxsFmt(
|
|
L"Savestate game/crc mismatch. Cdvd CRC: 0x%X Game CRC: 0x%X\n",
|
|
Crc_Savestate, Crc_Cdvd
|
|
);
|
|
}
|