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fceux
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re-enable support for old-format savestates.

This commit is contained in:
zeromus 2008-08-10 03:10:23 +00:00
parent 91db1e71f4
commit aff4bb2367
2 changed files with 103 additions and 4 deletions
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1
changelog.txt
View File

@ -1,5 +1,6 @@
---version 2.0.2 released---
09-aug-2008 - zeromus - re-enable support for old-format savestates.
09-aug-2008 - zeromus - SF [ 2041944 ] Savestates remember Lua painting
09-aug-2008 - zeromus - support loading movies from archives
08-aug-2008 - adelikat - added input display to the FCEUX main menu

106
src/state.cpp
View File

@ -443,16 +443,112 @@ void FCEUSS_Save(char *fname)
}
}
int FCEUSS_LoadFP_old(std::istream* is, ENUM_SSLOADPARAMS params)
{
//if(params==SSLOADPARAM_DUMMY && suppress_scan_chunks)
// return 1;
int x;
uint8 header[16];
int stateversion;
char* fn=0;
////Make temporary savestate in case something screws up during the load
//if(params == SSLOADPARAM_BACKUP)
//{
// fn=FCEU_MakeFName(FCEUMKF_NPTEMP,0,0);
// FILE *fp;
//
// if((fp=fopen(fn,"wb")))
// {
// if(FCEUSS_SaveFP(fp))
// {
// fclose(fp);
// }
// else
// {
// fclose(fp);
// unlink(fn);
// free(fn);
// fn=0;
// }
// }
//}
//if(params!=SSLOADPARAM_DUMMY)
{
FCEUMOV_PreLoad();
}
is->read((char*)&header,16);
if(memcmp(header,"FCS",3))
{
return(0);
}
if(header[3] == 0xFF)
{
stateversion = FCEU_de32lsb(header + 8);
}
else
{
stateversion=header[3] * 100;
}
//if(params == SSLOADPARAM_DUMMY)
//{
// scan_chunks=1;
//}
x=ReadStateChunks(is,*(uint32*)(header+4));
//if(params == SSLOADPARAM_DUMMY)
//{
// scan_chunks=0;
// return 1;
//}
if(read_sfcpuc && stateversion<9500)
{
X.IRQlow=0;
}
if(GameStateRestore)
{
GameStateRestore(stateversion);
}
if(x)
{
FCEUPPU_LoadState(stateversion);
FCEUSND_LoadState(stateversion);
x=FCEUMOV_PostLoad();
}
if(fn)
{
//if(!x || params == SSLOADPARAM_DUMMY) //is make_backup==2 possible?? oh well.
//{
// * Oops! Load the temporary savestate */
// FILE *fp;
//
// if((fp=fopen(fn,"rb")))
// {
// FCEUSS_LoadFP(fp,SSLOADPARAM_NOBACKUP);
// fclose(fp);
// }
// unlink(fn);
//}
free(fn);
}
return(x);
}
bool FCEUSS_LoadFP(std::istream* is, ENUM_SSLOADPARAMS params)
{
uint8 header[16];
FCEUMOV_PreLoad();
//read and analyze the header
is->read((char*)&header,16);
if(memcmp(header,"FCSX",4))
return false;
if(memcmp(header,"FCSX",4)) {
//its not an fceux save file.. perhaps it is an fceu savefile
is->seekg(0);
return FCEUSS_LoadFP_old(is,params)!=0;
}
int totalsize = FCEU_de32lsb(header + 4);
int stateversion = FCEU_de32lsb(header + 8);
int comprlen = FCEU_de32lsb(header + 12);
@ -476,6 +572,8 @@ bool FCEUSS_LoadFP(std::istream* is, ENUM_SSLOADPARAMS params)
is->read((char*)&buf[0],totalsize);
}
FCEUMOV_PreLoad();
memorystream mstemp(&buf);
bool x = ReadStateChunks(&mstemp,totalsize)!=0;