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only bypass cache fill on write for nds. this is sub-optimal on wii/gc.

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tantricity 2010-11-17 18:44:13 +00:00
parent 639836914a
commit ba3622a4cd
1 changed files with 23 additions and 24 deletions
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47
source/cache.c
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@ -264,7 +264,7 @@ bool _FAT_cache_eraseWritePartialSector (CACHE* cache, const void* buffer, sec_t
return true;
}
#ifndef GEKKO
static CACHE_ENTRY* _FAT_cache_findPage(CACHE *cache, sec_t sector, sec_t count) {
unsigned int i;
@ -291,6 +291,7 @@ static CACHE_ENTRY* _FAT_cache_findPage(CACHE *cache, sec_t sector, sec_t count)
return entry;
}
#endif
bool _FAT_cache_writeSectors (CACHE* cache, sec_t sector, sec_t numSectors, const void* buffer)
{
@ -301,37 +302,35 @@ bool _FAT_cache_writeSectors (CACHE* cache, sec_t sector, sec_t numSectors, cons
while(numSectors>0)
{
#ifdef GEKKO
entry = _FAT_cache_getPage(cache,sector);
if(entry==NULL) return false;
#else
entry = _FAT_cache_findPage(cache,sector,numSectors);
if(entry!=NULL) {
if(entry==NULL)
return _FAT_disc_writeSectors(cache->disc,sector,numSectors,src);
if ( entry->sector > sector) {
if ( entry->sector > sector) {
secs_to_write = entry->sector - sector;
secs_to_write = entry->sector - sector;
_FAT_disc_writeSectors(cache->disc,sector,secs_to_write,src);
src += (secs_to_write*BYTES_PER_READ);
sector += secs_to_write;
numSectors -= secs_to_write;
}
sec = sector - entry->sector;
secs_to_write = entry->count - sec;
if(secs_to_write>numSectors) secs_to_write = numSectors;
memcpy(entry->cache + (sec*BYTES_PER_READ),src,(secs_to_write*BYTES_PER_READ));
_FAT_disc_writeSectors(cache->disc,sector,secs_to_write,src);
src += (secs_to_write*BYTES_PER_READ);
sector += secs_to_write;
numSectors -= secs_to_write;
entry->dirty = true;
} else {
_FAT_disc_writeSectors(cache->disc,sector,numSectors,src);
numSectors=0;
}
#endif
sec = sector - entry->sector;
secs_to_write = entry->count - sec;
if(secs_to_write>numSectors) secs_to_write = numSectors;
memcpy(entry->cache + (sec*BYTES_PER_READ),src,(secs_to_write*BYTES_PER_READ));
src += (secs_to_write*BYTES_PER_READ);
sector += secs_to_write;
numSectors -= secs_to_write;
entry->dirty = true;
}
return true;
}