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fiddle around with movie sram 

re #152
This commit is contained in:
zeromus 2018-07-06 14:18:14 -04:00
parent f79e24dba8
commit 41104fd315
3 changed files with 30 additions and 38 deletions
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58
desmume/src/mc.cpp
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@ -1,7 +1,7 @@
/*
Copyright (C) 2006 thoduv
Copyright (C) 2006-2007 Theo Berkau
Copyright (C) 2008-2017 DeSmuME team
Copyright (C) 2008-2018 DeSmuME team
This file is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
@ -164,14 +164,14 @@ bool BackupDevice::load_state(EMUFILE &is)
if (is.read_32LE(version) != 1) return false;
is.read_bool32(write_enable);
is.read_32LE(com);
is.read_32LE(addr_size);
is.read_32LE(addr_counter);
is.read_32LE(temp);
state = (STATE)temp;
is.read_buffer(data);
is.read_buffer(data_autodetect);
is.read_bool32(write_enable);
is.read_32LE(com);
is.read_32LE(addr_size);
is.read_32LE(addr_counter);
is.read_32LE(temp);
state = (STATE)temp;
is.read_buffer(data);
is.read_buffer(data_autodetect);
if (version >= 1)
is.read_32LE(addr);
@ -1653,35 +1653,25 @@ bool BackupDevice::import_dsv(const char *filename)
return result;
}
bool BackupDevice::load_movie(EMUFILE &is)
bool BackupDevice::load_movie(EMUFILE *is)
{
const s32 cookieLen = (s32)strlen(kDesmumeSaveCookie);
is.fseek(-cookieLen, SEEK_END);
is.fseek(-4, SEEK_CUR);
u32 version = is.read_u32LE();
if (version != 0)
{
printf("Unknown save file format\n");
return false;
}
is.fseek(-24, SEEK_CUR);
BackupDeviceFileInfo info;
delete fpMC;
fpMC = is;
is.read_32LE(info.size);
is.read_32LE(info.padSize);
is.read_32LE(info.type);
is.read_32LE(info.addr_size);
is.read_32LE(info.mem_size);
int ok = readFooter();
// TODO - in case we ever change the format again (and we should probably entirely rewrite this if we do) we'd need to detect the old versions
// (that is, returning -1 or -2 here or some other errors)
is->fseek(0, SEEK_SET);
is.fseek(0, SEEK_SET);
fpMC = &is;
EMUFILE_MEMORY* scratchbuf = new EMUFILE_MEMORY(this->_info.padSize);
is->fread(scratchbuf->buf(),_info.padSize);
fpMC = scratchbuf;
//this is what load_movie has always done.
//seems sloppy, the original intention was for this to basically be a savestate, so that all fields are saved, but someone wrecked that
state = RUNNING;
addr_size = info.addr_size;
//none of the other fields are used right now
addr_size = _info.addr_size;
return true;
}
@ -1692,6 +1682,8 @@ void BackupDevice::load_movie_blank()
fpMC = new EMUFILE_MEMORY();
state = DETECTING;
fsize = 0;
addr_size = 0;
}
void BackupDevice::forceManualBackupType()

4
desmume/src/mc.h
View File

@ -1,7 +1,7 @@
/*
Copyright (C) 2006 thoduv
Copyright (C) 2006 Theo Berkau
Copyright (C) 2008-2017 DeSmuME team
Copyright (C) 2008-2018 DeSmuME team
This file is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
@ -147,7 +147,7 @@ public:
bool export_raw(const char* filename);
bool no_gba_unpack(u8 *&buf, u32 &size);
bool load_movie(EMUFILE &is);
bool load_movie(EMUFILE *is);
void load_movie_blank();
u32 importDataSize(const char *filename);

6
desmume/src/movie.cpp
View File

@ -1,5 +1,5 @@
/*
Copyright 2008-2017 DeSmuME team
Copyright 2008-2018 DeSmuME team
This file is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
@ -606,8 +606,8 @@ static void openRecordingMovie(const char* fname)
bool MovieData::loadSramFrom(std::vector<u8>* buf)
{
EMUFILE_MEMORY* ms = new EMUFILE_MEMORY(buf); // change to new to avoid automatic destruction
MMU_new.backupDevice.load_movie(*ms);
EMUFILE_MEMORY ms(buf);
MMU_new.backupDevice.load_movie(&ms);
return true;
}