// Fast raw chunk reader
static void DOReadChunk(StateMem *st, SFORMAT *sf)
{
while(sf->size || sf->name) // Size can sometimes be zero, so also check for the text name.
// These two should both be zero only at the end of a struct.
{
if(!sf->size || !sf->v)
{
sf++;
continue;
}
if(sf->size == (uint32_t) ~0) // Link to another SFORMAT struct
{
DOReadChunk(st, (SFORMAT *)sf->v);
sf++;
continue;
}
int32_t bytesize = sf->size;
// Loading raw data, bool types are stored as they appear in memory, not as single bytes in the full state format.
// In the SFORMAT structure, the size member for bool entries is the number of bool elements, not the total in-memory size,
// so we adjust it here.
if(sf->flags & MDFNSTATE_BOOL)
bytesize *= sizeof(bool);
smem_read(st, (uint8_t *)sf->v, bytesize);
sf++;
}
}
static int ReadStateChunk(StateMem *st, SFORMAT *sf, int size, int data_only)
{
SFORMAT *tmp;
int temp;
if(data_only)
{
DOReadChunk(st, sf);
}
else
{
temp = smem_tell(st);
while(smem_tell(st) < temp + size)
{
uint32 tsize;
char toa[32];
if(smem_read(st, toa, 32) <= 0)
{
puts("Unexpected EOF?");
return 0;
}
smem_read32le(st, &tsize);
if((tmp=CheckS(sf,tsize,toa)))
{
int32 bytesize = tmp->s&(~(MDFNSTATE_RLSB32 | MDFNSTATE_RLSB16 | RLSB));
smem_read(st, (uint8 *)tmp->v, bytesize);
if(tmp->s & MDFNSTATE_RLSB32)
Endian_A32_LE_to_NE(tmp->v, bytesize / sizeof(uint32));
else if(tmp->s & MDFNSTATE_RLSB16)
Endian_A16_LE_to_NE(tmp->v, bytesize / sizeof(uint16));
else if(tmp->s&RLSB)
Endian_V_LE_to_NE(tmp->v, bytesize);
}
else
if(smem_seek(st,tsize,SEEK_CUR) < 0)
{
puts("Seek error");
return(0);
}
} // while(...)
}
return 1;
}
// Fast raw chunk reader
static void DOReadChunk(StateMem *st, SFORMAT *sf)
{
while(sf->s || sf->desc)// Size can sometimes be zero, so also check for the text description.
// These two should both be zero only at the end of a struct.
{
if(!sf->s || !sf->v)
{
sf++;
continue;
}
if(sf->s == (uint32) ~0) // Link to another SFORMAT struct
{
DOReadChunk(st, (SFORMAT *)sf->v);
sf++;
continue;
}
int32 bytesize = sf->s&(~(MDFNSTATE_RLSB32 | MDFNSTATE_RLSB16 | RLSB));
smem_read(st, (uint8 *)sf->v, bytesize);
sf++;
}
}
static int ReadStateChunk(StateMem *st, SFORMAT *sf, int size, int data_only)
{
int temp;
if(data_only)
{
DOReadChunk(st, sf);
}
else
{
SFMap_t sfmap;
SFMap_t sfmap_found; // Used for identify variables that are missing in the save state.
MakeSFMap(sf, sfmap);
temp = smem_tell(st);
while(smem_tell(st) < (temp + size))
{
uint32 tsize;
char toa[1 + 256];
if(smem_read(st, toa, 1) != 1)
{
puts("Unexpected EOF");
return(0);
}
if(smem_read(st, toa + 1, toa[0]) != toa[0])
{
puts("Unexpected EOF?");
return 0;
}
toa[1 + toa[0]] = 0;
smem_read32le(st, &tsize);
SFMap_t::iterator sfmit;
sfmit = sfmap.find(toa + 1);
if(sfmit != sfmap.end())
{
SFORMAT *tmp = sfmit->second;
int32 bytesize = tmp->size;
sfmap_found[tmp->name] = tmp;
smem_read(st, (uint8 *)tmp->v, bytesize);
if(tmp->flags & MDFNSTATE_BOOL)
{
// Converting downwards is necessary for the case of sizeof(bool) > 1
for(int32 bool_monster = bytesize - 1; bool_monster >= 0; bool_monster--)
{
((bool *)tmp->v)[bool_monster] = (bool)((uint8 *)tmp->v)[bool_monster];
}
}
if(tmp->flags & MDFNSTATE_RLSB64)
Endian_A64_LE_to_NE(tmp->v, bytesize / sizeof(uint64));
else if(tmp->flags & MDFNSTATE_RLSB32)
Endian_A32_LE_to_NE(tmp->v, bytesize / sizeof(uint32));
else if(tmp->flags & MDFNSTATE_RLSB16)
Endian_A16_LE_to_NE(tmp->v, bytesize / sizeof(uint16));
else if(tmp->flags & RLSB)
Endian_V_LE_to_NE(tmp->v, bytesize);
}
else
{
printf("Unknown variable in save state: %s\n", toa + 1);
if(smem_seek(st, tsize, SEEK_CUR) < 0)
{
puts("Seek error");
return(0);
}
}
} // while(...)
for(SFMap_t::const_iterator it = sfmap.begin(); it != sfmap.end(); it++)
{
if(sfmap_found.find(it->second->name) == sfmap_found.end())
{
printf("Variable missing from save state: %s\n", it->second->name);
}
}
assert(smem_tell(st) == (temp + size));
}
return 1;
}
static int ReadStateChunk(StateMem *st, SFORMAT *sf, int size, int data_only)
{
int temp;
if(data_only)
{
DOReadChunk(st, sf);
}
else
{
SFMap_t sfmap;
SFMap_t sfmap_found; // Used for identifying variables that are missing in the save state.
MakeSFMap(sf, sfmap);
temp = smem_tell(st);
while(smem_tell(st) < (temp + size))
{
uint32 recorded_size; // In bytes
uint8 toa[1 + 256]; // Don't change to char unless cast toa[0] to unsigned to smem_read() and other places.
if(smem_read(st, toa, 1) != 1)
{
MDFN_printf("Unexpected EOF");
return(0);
}
if(smem_read(st, toa + 1, toa[0]) != toa[0])
{
MDFN_printf("Unexpected EOF?");
return 0;
}
toa[1 + toa[0]] = 0;
smem_read32le(st, &recorded_size);
SFMap_t::iterator sfmit;
sfmit = sfmap.find((char *)toa + 1);
if(sfmit != sfmap.end())
{
SFORMAT *tmp = sfmit->second;
uint32 expected_size = tmp->size; // In bytes
if(recorded_size != expected_size)
{
MDFN_printf("Variable in save state wrong size: %s. Need: %d, got: %d\n", toa + 1, expected_size, recorded_size);
if(smem_seek(st, recorded_size, SEEK_CUR) < 0)
{
MDFN_PrintError("Seek error");
return(0);
}
}
else
{
sfmap_found[tmp->name] = tmp;
smem_read(st, (uint8 *)tmp->v, expected_size);
if(tmp->flags & MDFNSTATE_BOOL)
{
// Converting downwards is necessary for the case of sizeof(bool) > 1
for(int32 bool_monster = expected_size - 1; bool_monster >= 0; bool_monster--)
{
((bool *)tmp->v)[bool_monster] = ((uint8 *)tmp->v)[bool_monster];
}
}
if(tmp->flags & MDFNSTATE_RLSB64)
Endian_A64_LE_to_NE(tmp->v, expected_size / sizeof(uint64));
else if(tmp->flags & MDFNSTATE_RLSB32)
Endian_A32_LE_to_NE(tmp->v, expected_size / sizeof(uint32));
else if(tmp->flags & MDFNSTATE_RLSB16)
Endian_A16_LE_to_NE(tmp->v, expected_size / sizeof(uint16));
else if(tmp->flags & RLSB)
Endian_V_LE_to_NE(tmp->v, expected_size);
}
}
else
{
MDFN_printf("Unknown variable in save state: %s\n", toa + 1);
if(smem_seek(st, recorded_size, SEEK_CUR) < 0)
{
MDFN_printf("Seek error");
return(0);
}
}
} // while(...)
for(SFMap_t::const_iterator it = sfmap.begin(); it != sfmap.end(); it++)
{
if(sfmap_found.find(it->second->name) == sfmap_found.end())
{
MDFN_printf("Variable missing from save state: %s\n", it->second->name);
}
}
assert(smem_tell(st) == (temp + size));
}
return 1;
}
