void GBASavedataForceType(struct GBASavedata* savedata, enum SavedataType type) {
if (savedata->type == type) {
return;
}
if (savedata->type != SAVEDATA_AUTODETECT) {
struct VFile* vf = savedata->vf;
int mapMode = savedata->mapMode;
bool maskWriteback = savedata->maskWriteback;
GBASavedataDeinit(savedata);
GBASavedataInit(savedata, vf);
savedata->mapMode = mapMode;
savedata->maskWriteback = maskWriteback;
}
switch (type) {
case SAVEDATA_FLASH512:
case SAVEDATA_FLASH1M:
savedata->type = type;
GBASavedataInitFlash(savedata);
break;
case SAVEDATA_EEPROM:
case SAVEDATA_EEPROM512:
GBASavedataInitEEPROM(savedata);
break;
case SAVEDATA_SRAM:
GBASavedataInitSRAM(savedata);
break;
case SAVEDATA_FORCE_NONE:
savedata->type = SAVEDATA_FORCE_NONE;
break;
case SAVEDATA_AUTODETECT:
break;
}
}
void GBASavedataForceType(struct GBASavedata* savedata, enum SavedataType type, bool realisticTiming) {
if (savedata->type != SAVEDATA_AUTODETECT) {
struct VFile* vf = savedata->vf;
GBASavedataDeinit(savedata);
GBASavedataInit(savedata, vf);
}
switch (type) {
case SAVEDATA_FLASH512:
case SAVEDATA_FLASH1M:
savedata->type = type;
GBASavedataInitFlash(savedata, realisticTiming);
break;
case SAVEDATA_EEPROM:
GBASavedataInitEEPROM(savedata, realisticTiming);
break;
case SAVEDATA_SRAM:
GBASavedataInitSRAM(savedata);
break;
case SAVEDATA_FORCE_NONE:
savedata->type = SAVEDATA_FORCE_NONE;
break;
case SAVEDATA_AUTODETECT:
break;
}
}
void GBASavedataMask(struct GBASavedata* savedata, struct VFile* vf, bool writeback) {
enum SavedataType type = savedata->type;
GBASavedataDeinit(savedata);
savedata->vf = vf;
savedata->mapMode = MAP_READ;
savedata->maskWriteback = writeback;
GBASavedataForceType(savedata, type, savedata->realisticTiming);
}
void GBASavedataMask(struct GBASavedata* savedata, struct VFile* vf, bool writeback) {
enum SavedataType type = savedata->type;
struct VFile* oldVf = savedata->vf;
GBASavedataDeinit(savedata);
if (oldVf && oldVf != savedata->realVf) {
oldVf->close(oldVf);
}
savedata->vf = vf;
savedata->mapMode = MAP_READ;
savedata->maskWriteback = writeback;
GBASavedataForceType(savedata, type);
}
void GBASavedataUnmask(struct GBASavedata* savedata) {
if (!savedata->realVf || savedata->vf == savedata->realVf) {
return;
}
enum SavedataType type = savedata->type;
struct VFile* vf = savedata->vf;
GBASavedataDeinit(savedata);
savedata->vf = savedata->realVf;
savedata->mapMode = MAP_WRITE;
GBASavedataForceType(savedata, type);
if (savedata->maskWriteback) {
GBASavedataLoad(savedata, vf);
savedata->maskWriteback = false;
}
vf->close(vf);
}