mirror of
https://github.com/AppleWin/AppleWin.git
synced 2024-08-18 20:29:01 +00:00
345 lines
7.8 KiB
C++
345 lines
7.8 KiB
C++
/*
|
|
AppleWin : An Apple //e emulator for Windows
|
|
|
|
Copyright (C) 1994-1996, Michael O'Brien
|
|
Copyright (C) 1999-2001, Oliver Schmidt
|
|
Copyright (C) 2002-2005, Tom Charlesworth
|
|
Copyright (C) 2006-2007, Tom Charlesworth, Michael Pohoreski
|
|
|
|
AppleWin is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 2 of the License, or
|
|
(at your option) any later version.
|
|
|
|
AppleWin 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 AppleWin; if not, write to the Free Software
|
|
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
|
|
/* Description: Save-state (snapshot) module
|
|
*
|
|
* Author: Copyright (c) 2004-2006 Tom Charlesworth
|
|
*/
|
|
|
|
#include "StdAfx.h"
|
|
|
|
#include "AppleWin.h"
|
|
#include "CPU.h"
|
|
#include "Disk.h"
|
|
#include "Frame.h"
|
|
#include "Joystick.h"
|
|
#include "Keyboard.h"
|
|
#include "Memory.h"
|
|
#include "Mockingboard.h"
|
|
#include "SerialComms.h"
|
|
#include "Speaker.h"
|
|
#include "Video.h"
|
|
|
|
// Prototypes (Public)
|
|
// Note: This is here and not in Video.h to prevent header include bloat.
|
|
// i.e. so we don't need to incude "Structs.h" for NTSC.cpp
|
|
DWORD VideoGetSnapshot(SS_IO_Video* pSS);
|
|
DWORD VideoSetSnapshot(SS_IO_Video* pSS);
|
|
|
|
#define DEFAULT_SNAPSHOT_NAME "SaveState.aws"
|
|
|
|
bool g_bSaveStateOnExit = false;
|
|
|
|
static std::string g_strSaveStateFilename;
|
|
static std::string g_strSaveStatePathname;
|
|
static std::string g_strSaveStatePath;
|
|
|
|
//-----------------------------------------------------------------------------
|
|
|
|
void Snapshot_SetFilename(std::string strPathname)
|
|
{
|
|
if (strPathname.empty())
|
|
{
|
|
g_strSaveStateFilename = DEFAULT_SNAPSHOT_NAME;
|
|
|
|
g_strSaveStatePathname = g_sCurrentDir;
|
|
if (g_strSaveStatePathname.length() && g_strSaveStatePathname[g_strSaveStatePathname.length()-1] != '\\')
|
|
g_strSaveStatePathname += "\\";
|
|
g_strSaveStatePathname.append(DEFAULT_SNAPSHOT_NAME);
|
|
|
|
g_strSaveStatePath = g_sCurrentDir;
|
|
|
|
return;
|
|
}
|
|
|
|
std::string strFilename = strPathname; // Set default, as maybe there's no path
|
|
g_strSaveStatePath.clear();
|
|
|
|
int nIdx = strPathname.find_last_of('\\');
|
|
if (nIdx >= 0 && nIdx+1 < (int)strPathname.length())
|
|
{
|
|
strFilename = &strPathname[nIdx+1];
|
|
g_strSaveStatePath = strPathname.substr(0, nIdx+1); // Bugfix: 1.25.0.2 // Snapshot_LoadState() -> SetCurrentImageDir() -> g_sCurrentDir
|
|
}
|
|
|
|
g_strSaveStateFilename = strFilename;
|
|
g_strSaveStatePathname = strPathname;
|
|
}
|
|
|
|
const char* Snapshot_GetFilename()
|
|
{
|
|
return g_strSaveStateFilename.c_str();
|
|
}
|
|
|
|
const char* Snapshot_GetPath()
|
|
{
|
|
return g_strSaveStatePath.c_str();
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
|
|
void Snapshot_LoadState()
|
|
{
|
|
char szMessage[32 + MAX_PATH];
|
|
std::string strOldImageDir;
|
|
|
|
APPLEWIN_SNAPSHOT* pSS = (APPLEWIN_SNAPSHOT*) new char[sizeof(APPLEWIN_SNAPSHOT)];
|
|
|
|
try
|
|
{
|
|
strOldImageDir = g_sCurrentDir;
|
|
SetCurrentImageDir(g_strSaveStatePath.c_str()); // Allow .dsk's load without prompting
|
|
|
|
if(pSS == NULL)
|
|
throw(0);
|
|
|
|
memset(pSS, 0, sizeof(APPLEWIN_SNAPSHOT));
|
|
|
|
//
|
|
|
|
HANDLE hFile = CreateFile( g_strSaveStatePathname.c_str(),
|
|
GENERIC_READ,
|
|
0,
|
|
NULL,
|
|
OPEN_EXISTING,
|
|
FILE_ATTRIBUTE_NORMAL,
|
|
NULL);
|
|
|
|
if(hFile == INVALID_HANDLE_VALUE)
|
|
{
|
|
strcpy(szMessage, "File not found: ");
|
|
strcpy(szMessage + strlen(szMessage), g_strSaveStatePathname.c_str());
|
|
throw(0);
|
|
}
|
|
|
|
DWORD dwBytesRead;
|
|
BOOL bRes = ReadFile( hFile,
|
|
pSS,
|
|
sizeof(APPLEWIN_SNAPSHOT),
|
|
&dwBytesRead,
|
|
NULL);
|
|
|
|
CloseHandle(hFile);
|
|
|
|
if(!bRes || (dwBytesRead != sizeof(APPLEWIN_SNAPSHOT)))
|
|
{
|
|
// File size wrong: probably because of version mismatch or corrupt file
|
|
strcpy(szMessage, "File size mismatch");
|
|
throw(0);
|
|
}
|
|
|
|
if(pSS->Hdr.dwTag != AW_SS_TAG)
|
|
{
|
|
strcpy(szMessage, "File corrupt");
|
|
throw(0);
|
|
}
|
|
|
|
if(pSS->Hdr.dwVersion != MAKE_VERSION(1,0,0,1))
|
|
{
|
|
strcpy(szMessage, "Version mismatch");
|
|
throw(0);
|
|
}
|
|
|
|
// TO DO: Verify checksum
|
|
|
|
//
|
|
// Reset all sub-systems
|
|
MemReset();
|
|
|
|
if (!IS_APPLE2)
|
|
MemResetPaging();
|
|
|
|
DiskReset();
|
|
KeybReset();
|
|
VideoResetState();
|
|
MB_Reset();
|
|
|
|
//
|
|
// Apple2 unit
|
|
//
|
|
|
|
CpuSetSnapshot(&pSS->Apple2Unit.CPU6502);
|
|
sg_SSC.CommSetSnapshot(&pSS->Apple2Unit.Comms);
|
|
JoySetSnapshot(&pSS->Apple2Unit.Joystick);
|
|
KeybSetSnapshot(&pSS->Apple2Unit.Keyboard);
|
|
SpkrSetSnapshot(&pSS->Apple2Unit.Speaker);
|
|
VideoSetSnapshot(&pSS->Apple2Unit.Video);
|
|
MemSetSnapshot(&pSS->Apple2Unit.Memory);
|
|
|
|
//
|
|
|
|
//
|
|
// Slot4: Mockingboard
|
|
MB_SetSnapshot(&pSS->Mockingboard1, 4);
|
|
|
|
//
|
|
// Slot5: Mockingboard
|
|
MB_SetSnapshot(&pSS->Mockingboard2, 5);
|
|
|
|
//
|
|
// Slot6: Disk][
|
|
DiskSetSnapshot(&pSS->Disk2, 6);
|
|
|
|
SetLoadedSaveStateFlag(true);
|
|
}
|
|
catch(int)
|
|
{
|
|
MessageBox( g_hFrameWindow,
|
|
szMessage,
|
|
TEXT("Load State"),
|
|
MB_ICONEXCLAMATION | MB_SETFOREGROUND);
|
|
|
|
SetCurrentImageDir(strOldImageDir.c_str());
|
|
}
|
|
|
|
delete [] pSS;
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
|
|
void Snapshot_SaveState()
|
|
{
|
|
APPLEWIN_SNAPSHOT* pSS = (APPLEWIN_SNAPSHOT*) new char[sizeof(APPLEWIN_SNAPSHOT)];
|
|
if(pSS == NULL)
|
|
{
|
|
// To do
|
|
return;
|
|
}
|
|
|
|
memset(pSS, 0, sizeof(APPLEWIN_SNAPSHOT));
|
|
|
|
pSS->Hdr.dwTag = AW_SS_TAG;
|
|
pSS->Hdr.dwVersion = MAKE_VERSION(1,0,0,1);
|
|
pSS->Hdr.dwChecksum = 0; // TO DO
|
|
|
|
//
|
|
// Apple2 unit
|
|
//
|
|
|
|
pSS->Apple2Unit.UnitHdr.dwLength = sizeof(SS_APPLE2_Unit);
|
|
pSS->Apple2Unit.UnitHdr.dwVersion = MAKE_VERSION(1,0,0,0);
|
|
|
|
CpuGetSnapshot(&pSS->Apple2Unit.CPU6502);
|
|
sg_SSC.CommGetSnapshot(&pSS->Apple2Unit.Comms);
|
|
JoyGetSnapshot(&pSS->Apple2Unit.Joystick);
|
|
KeybGetSnapshot(&pSS->Apple2Unit.Keyboard);
|
|
SpkrGetSnapshot(&pSS->Apple2Unit.Speaker);
|
|
VideoGetSnapshot(&pSS->Apple2Unit.Video);
|
|
MemGetSnapshot(&pSS->Apple2Unit.Memory);
|
|
|
|
//
|
|
// Slot1: Empty
|
|
pSS->Empty1.Hdr.UnitHdr.dwLength = sizeof(SS_CARD_EMPTY);
|
|
pSS->Empty1.Hdr.UnitHdr.dwVersion = MAKE_VERSION(1,0,0,0);
|
|
pSS->Empty1.Hdr.dwSlot = 1;
|
|
pSS->Empty1.Hdr.dwType = CT_Empty;
|
|
|
|
//
|
|
// Slot2: Empty
|
|
pSS->Empty2.Hdr.UnitHdr.dwLength = sizeof(SS_CARD_EMPTY);
|
|
pSS->Empty2.Hdr.UnitHdr.dwVersion = MAKE_VERSION(1,0,0,0);
|
|
pSS->Empty2.Hdr.dwSlot = 2;
|
|
pSS->Empty2.Hdr.dwType = CT_Empty;
|
|
|
|
//
|
|
// Slot3: Empty
|
|
pSS->Empty3.Hdr.UnitHdr.dwLength = sizeof(SS_CARD_EMPTY);
|
|
pSS->Empty3.Hdr.UnitHdr.dwVersion = MAKE_VERSION(1,0,0,0);
|
|
pSS->Empty3.Hdr.dwSlot = 3;
|
|
pSS->Empty3.Hdr.dwType = CT_Empty;
|
|
|
|
//
|
|
// Slot4: Mockingboard
|
|
MB_GetSnapshot(&pSS->Mockingboard1, 4);
|
|
|
|
//
|
|
// Slot5: Mockingboard
|
|
MB_GetSnapshot(&pSS->Mockingboard2, 5);
|
|
|
|
//
|
|
// Slot6: Disk][
|
|
DiskGetSnapshot(&pSS->Disk2, 6);
|
|
|
|
//
|
|
|
|
HANDLE hFile = CreateFile( g_strSaveStatePathname.c_str(),
|
|
GENERIC_WRITE,
|
|
0,
|
|
NULL,
|
|
CREATE_ALWAYS,
|
|
FILE_ATTRIBUTE_NORMAL,
|
|
NULL);
|
|
|
|
DWORD dwError = GetLastError();
|
|
_ASSERT((dwError == 0) || (dwError == ERROR_ALREADY_EXISTS));
|
|
|
|
if(hFile != INVALID_HANDLE_VALUE)
|
|
{
|
|
DWORD dwBytesWritten;
|
|
BOOL bRes = WriteFile( hFile,
|
|
pSS,
|
|
sizeof(APPLEWIN_SNAPSHOT),
|
|
&dwBytesWritten,
|
|
NULL);
|
|
|
|
if(!bRes || (dwBytesWritten != sizeof(APPLEWIN_SNAPSHOT)))
|
|
dwError = GetLastError();
|
|
|
|
CloseHandle(hFile);
|
|
}
|
|
else
|
|
{
|
|
dwError = GetLastError();
|
|
}
|
|
|
|
_ASSERT((dwError == 0) || (dwError == ERROR_ALREADY_EXISTS));
|
|
|
|
delete [] pSS;
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
|
|
void Snapshot_Startup()
|
|
{
|
|
static bool bDone = false;
|
|
|
|
if(!g_bSaveStateOnExit || bDone)
|
|
return;
|
|
|
|
Snapshot_LoadState();
|
|
|
|
bDone = true;
|
|
}
|
|
|
|
void Snapshot_Shutdown()
|
|
{
|
|
static bool bDone = false;
|
|
|
|
if(!g_bSaveStateOnExit || bDone)
|
|
return;
|
|
|
|
Snapshot_SaveState();
|
|
|
|
bDone = true;
|
|
}
|