#include "memory.h"
#include "ppu.h"
-static SFORMAT SFMDATA[64];
+static void (*SPreSave)(void) = 0;
+static void (*SPostSave)(void) = 0;
+
+#define SFMDATA_SIZE (64)
+static SFORMAT SFMDATA[SFMDATA_SIZE];
static int SFEXINDEX;
static int stateversion;
-int WriteStateChunk(FILE *st, int type, SFORMAT *sf)
+static int SubWrite(FILE *st, SFORMAT *sf)
{
- int bsize, count;
- int x;
+ uint32 acc=0;
+
+ while(sf->v)
+ {
+ if(sf->s==~0) /* Link to another struct. */
+ {
+ uint32 tmp;
+
+ if(!(tmp=SubWrite(st,(SFORMAT *)sf->v)))
+ return(0);
+ acc+=tmp;
+ sf++;
+ continue;
+ }
+
+ acc+=8; /* Description + size */
+ acc+=sf->s&(~RLSB);
+
+ if(st) /* Are we writing or calculating the size of this block? */
+ {
+ fwrite(sf->desc,1,4,st);
+ write32le(sf->s&(~RLSB),st);
- count = x = 0;
- while (sf[x++].v) count++;
+ #ifndef LSB_FIRST
+ if(sf->s&RLSB)
+ FlipByteOrder(sf->v,sf->s&(~RLSB));
+ #endif
+
+ fwrite((uint8 *)sf->v,1,sf->s&(~RLSB),st);
+ /* Now restore the original byte order. */
+ #ifndef LSB_FIRST
+ if(sf->s&RLSB)
+ FlipByteOrder(sf->v,sf->s&(~RLSB));
+ #endif
+ }
+ sf++;
+ }
+
+ return(acc);
+}
+
+static int WriteStateChunk(FILE *st, int type, SFORMAT *sf)
+{
+ int bsize;
fputc(type,st);
- for(x=bsize=0;x<count;x++)
- bsize+=sf[x].s&(~RLSB);
- bsize+=count<<3;
- write32(bsize,st);
- for(x=0;x<count;x++)
+ bsize=SubWrite(0,sf);
+ write32le(bsize,st);
+
+ if(!SubWrite(st,sf))
{
- fwrite(sf[x].desc,1,4,st);
- write32(sf[x].s&(~RLSB),st);
- #ifdef LSB_FIRST
- fwrite((uint8 *)sf[x].v,1,sf[x].s&(~RLSB),st);
- #else
+ return(0);
+ }
+ return (bsize+5);
+}
+
+static SFORMAT *CheckS(SFORMAT *sf, uint32 tsize, char *desc)
+{
+ while(sf->v)
+ {
+ if(sf->s==~0) /* Link to another SFORMAT structure. */
{
- int z;
- if(sf[x].s&RLSB)
+ SFORMAT *tmp;
+ if((tmp= CheckS((SFORMAT *)sf->v, tsize, desc) ))
+ return(tmp);
+ sf++;
+ continue;
+ }
+ if(!memcmp(desc,sf->desc,4))
{
- for(z=(sf[x].s&(~RLSB))-1;z>=0;z--)
+ if(tsize!=(sf->s&(~RLSB)))
{
- fputc(*(uint8*)sf[x].v,st);
+ printf("ReadStateChunk: sect \"%c%c%c%c\" has wrong size\n", desc[0], desc[1], desc[2], desc[3]);
+ return(0);
}
+ return(sf);
}
- else
- fwrite((uint8 *)sf[x].v,1,sf[x].s&(~RLSB),st);
- }
- #endif
+ sf++;
}
- return (bsize+5);
+ return(0);
}
-int ReadStateChunk(FILE *st, SFORMAT *sf, int size)
+static int ReadStateChunk(FILE *st, SFORMAT *sf, int size)
{
- uint8 tmpyo[16];
- int bsize, count;
- int x;
+ //if(scan_chunks)
+ // return fseek(st,size,SEEK_CUR) == 0;
- // recalculate count ourselves
- count = x = 0;
- while (sf[x++].v) count++;
+ SFORMAT *tmp;
+ int temp;
+ temp=ftell(st);
- for(x=bsize=0;x<count;x++)
- bsize+=sf[x].s&(~RLSB);
- if(stateversion>=53)
- bsize+=count<<3;
- else
+ while(ftell(st)<temp+size)
{
- if(bsize!=size)
- {
- fseek(st,size,SEEK_CUR);
+ uint32 tsize;
+ char toa[4];
+ if(fread(toa,1,4,st)<=0)
return 0;
- }
- }
- if(stateversion<56)
- memcpy(tmpyo,mapbyte3,16);
+ read32le(&tsize,st);
- if(stateversion>=53)
- {
- int temp;
- temp=ftell(st);
-
- while(ftell(st)<temp+size)
+ if((tmp=CheckS(sf,tsize,toa)))
{
- int tsize;
- char toa[4];
-
- if(fread(toa,1,4,st)<=0)
- return 0;
- read32(&tsize,st);
+ fread((uint8 *)tmp->v,1,tmp->s&(~RLSB),st);
- for(x=0;x<count;x++)
- {
- if(!memcmp(toa,sf[x].desc,4))
- {
- if(tsize!=(sf[x].s&(~RLSB)))
- {
- printf("ReadStateChunk: sect \"%c%c%c%c\" has wrong size\n", toa[0], toa[1], toa[2], toa[3]);
- goto nkayo;
- }
- #ifndef LSB_FIRST
- if(sf[x].s&RLSB)
- {
- int z;
- for(z=(sf[x].s&(~RLSB))-1;z>=0;z--)
- *(uint8*)sf[x].v=fgetc(st);
- }
- else
- #endif
- {
- fread((uint8 *)sf[x].v,1,sf[x].s&(~RLSB),st);
- }
- goto bloo;
- }
- }
- printf("ReadStateChunk: sect \"%c%c%c%c\" not handled\n", toa[0], toa[1], toa[2], toa[3]);
- nkayo:
- fseek(st,tsize,SEEK_CUR);
- bloo:;
- } // while(...)
- } // >=53
- else
- {
- for(x=0;x<count;x++)
- {
- #ifdef LSB_FIRST
- fread((uint8 *)sf[x].v,1,sf[x].s&(~RLSB),st);
- #else
- int z;
- if(sf[x].s&RLSB)
- for(z=(sf[x].s&(~RLSB))-1;z>=0;z--)
- {
- *(uint8*)sf[x].v=fgetc(st);
- }
- else
- fread((uint8 *)sf[x].v,1,sf[x].s&(~RLSB),st);
+ #ifndef LSB_FIRST
+ if(tmp->s&RLSB)
+ FlipByteOrder(tmp->v,tmp->s&(~RLSB));
#endif
}
- }
- if(stateversion<56)
- {
- for(x=0;x<16;x++)
- #ifdef LSB_FIRST
- mapbyte1[x]=mapbyte1[x<<1];
- #else
- mapbyte1[x]=mapbyte1[(x<<1)+1];
- #endif
- memcpy(mapbyte3,tmpyo,16);
- }
+ else
+ {
+ fseek(st,tsize,SEEK_CUR);
+ printf("ReadStateChunk: sect \"%c%c%c%c\" not handled\n", toa[0], toa[1], toa[2], toa[3]);
+ }
+ } // while(...)
return 1;
}
+
static int ReadStateChunks(FILE *st)
{
int t;
void SaveState(void)
{
FILE *st=NULL;
+ char *fname;
TempAddrT=TempAddr;
RefreshAddrT=RefreshAddr;
return;
}
- st=fopen(FCEU_MakeFName(FCEUMKF_STATE,CurrentState,0),"wb");
+ fname = FCEU_MakeFName(FCEUMKF_STATE,CurrentState,0);
+ st=fopen(fname,"wb");
+ free(fname);
if(st!=NULL)
{
- static uint32 totalsize;
- static uint8 header[16]="FCS";
- memset(header+4,0,13);
+ uint32 totalsize;
+ uint8 header[16]="FCS";
+ memset(header+4,0,sizeof(header)-4);
header[3]=VERSION_NUMERIC;
fwrite(header,1,16,st);
totalsize+=WriteStateChunk(st,3,FCEUPPU_STATEINFO);
totalsize+=WriteStateChunk(st,4,FCEUCTRL_STATEINFO);
totalsize+=WriteStateChunk(st,5,SFSND);
+
+
+ if(SPreSave) SPreSave();
totalsize+=WriteStateChunk(st,0x10,SFMDATA);
+ if(SPostSave) SPostSave();
fseek(st,4,SEEK_SET);
write32(totalsize,st);
void LoadState(void)
{
FILE *st=NULL;
+ char *fname;
if(geniestage==1)
{
return;
}
- st=fopen(FCEU_MakeFName(FCEUMKF_STATE,CurrentState,0),"rb");
+ fname = FCEU_MakeFName(FCEUMKF_STATE,CurrentState,0);
+ st=fopen(fname,"rb");
+ free(fname);
+
if (st)
{
FCEUSS_LoadFP(st, 0);
fclose(st);
}
+ else
+ {
+ FCEU_DispMessage("State %d load error (no file).",CurrentState);
+ SaveStateStatus[CurrentState]=0;
+ }
}
char SaveStateStatus[10];
+#if 0 // leaks memory
void CheckStates(void)
{
FILE *st=NULL;
SaveStateStatus[ssel]=0;
}
}
+#endif
void SaveStateRefresh(void)
{
SaveStateStatus[0]=-1;
}
-void ResetExState(void)
+void ResetExState(void (*PreSave)(void), void (*PostSave)(void))
{
int x;
for(x=0;x<SFEXINDEX;x++)
- free(SFMDATA[x].desc);
+ {
+ if(SFMDATA[x].desc)
+ free(SFMDATA[x].desc);
+ }
+ SPreSave = PreSave;
+ SPostSave = PostSave;
SFEXINDEX=0;
}
+
void AddExState(void *v, uint32 s, int type, char *desc)
{
- SFMDATA[SFEXINDEX].desc=FCEU_malloc(5);
- if(SFMDATA[SFEXINDEX].desc)
+ if(desc)
{
+ SFMDATA[SFEXINDEX].desc=(char *)FCEU_malloc(5);
strcpy(SFMDATA[SFEXINDEX].desc,desc);
- SFMDATA[SFEXINDEX].v=v;
- SFMDATA[SFEXINDEX].s=s;
- if(type) SFMDATA[SFEXINDEX].s|=RLSB;
- if(SFEXINDEX<63) SFEXINDEX++;
}
+ else
+ SFMDATA[SFEXINDEX].desc=0;
+ SFMDATA[SFEXINDEX].v=v;
+ SFMDATA[SFEXINDEX].s=s;
+ if(type) SFMDATA[SFEXINDEX].s|=RLSB;
+ if(SFEXINDEX<SFMDATA_SIZE-1)
+ SFEXINDEX++;
+ else
+ {
+ static int once=1;
+ if(once)
+ {
+ once=0;
+ FCEU_PrintError("Error in AddExState: SFEXINDEX overflow.\nSomebody made SFMDATA_SIZE too small.");
+ }
+ }
+ SFMDATA[SFEXINDEX].v=0; // End marker.
}
+
/* Old state loading code follows */
uint8 *StateBuffer;
notaz.gp2x.de / fceu.git / blobdiff