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(svn r7793) -Cleanup: Remove obsolute, never-used old spritecache LRU code

This commit is contained in:
peter1138 2007-01-03 09:32:01 +00:00
parent 0d5b861b48
commit 8e625b8b42
1 changed files with 0 additions and 47 deletions
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47
src/spritecache.c
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@ -11,18 +11,10 @@
#define SPRITE_CACHE_SIZE 1024*1024
#define WANT_NEW_LRU
static void* _sprite_ptr[MAX_SPRITES];
static uint32 _sprite_file_pos[MAX_SPRITES];
#if defined(WANT_NEW_LRU)
static int16 _sprite_lru_new[MAX_SPRITES];
#else
static uint16 _sprite_lru[MAX_SPRITES];
static uint16 _sprite_lru_cur[MAX_SPRITES];
#endif
typedef struct MemBlock {
uint32 size;
@ -159,12 +151,7 @@ bool LoadNextSprite(int load_index, byte file_index)
_sprite_ptr[load_index] = NULL;
#if defined(WANT_NEW_LRU)
_sprite_lru_new[load_index] = 0;
#else
_sprite_lru[load_index] = 0xFFFF;
_sprite_lru_cur[load_index] = 0;
#endif
return true;
}
@ -209,7 +196,6 @@ void IncreaseSpriteLRU(void)
int i;
// Increase all LRU values
#if defined(WANT_NEW_LRU)
if (_sprite_lru_counter > 16384) {
DEBUG(sprite, 3, "Fixing lru %d, inuse=%d", _sprite_lru_counter, GetSpriteCacheUsage());
@ -223,13 +209,6 @@ void IncreaseSpriteLRU(void)
}
_sprite_lru_counter = 0;
}
#else
for (i = 0; i != MAX_SPRITES; i++)
if (_sprite_ptr[i] != NULL && _sprite_lru[i] != 65535)
_sprite_lru[i]++;
// Reset the lru counter.
_sprite_lru_counter = 0;
#endif
// Compact sprite cache every now and then.
if (++_compact_cache_counter >= 740) {
@ -290,7 +269,6 @@ static void DeleteEntryFromSpriteCache(void)
DEBUG(sprite, 3, "DeleteEntryFromSpriteCache, inuse=%d", GetSpriteCacheUsage());
#if defined(WANT_NEW_LRU)
cur_lru = 0xffff;
for (i = 0; i != MAX_SPRITES; i++) {
if (_sprite_ptr[i] != NULL && _sprite_lru_new[i] < cur_lru) {
@ -298,26 +276,6 @@ static void DeleteEntryFromSpriteCache(void)
best = i;
}
}
#else
{
uint16 cur_lru = 0, cur_lru_cur = 0xffff;
for (i = 0; i != MAX_SPRITES; i++) {
if (_sprite_ptr[i] == NULL || _sprite_lru[i] < cur_lru) continue;
// Found a sprite with a higher LRU value, then remember it.
if (_sprite_lru[i] != cur_lru) {
cur_lru = _sprite_lru[i];
best = i;
// Else if both sprites were very recently referenced, compare by the cur value instead.
} else if (cur_lru == 0 && _sprite_lru_cur[i] <= cur_lru_cur) {
cur_lru_cur = _sprite_lru_cur[i];
cur_lru = _sprite_lru[i];
best = i;
}
}
}
#endif
// Display an error message and die, in case we found no sprite at all.
// This shouldn't really happen, unless all sprites are locked.
@ -431,12 +389,7 @@ const void *GetRawSprite(SpriteID sprite)
#endif
// Update LRU
#if defined(WANT_NEW_LRU)
_sprite_lru_new[sprite] = ++_sprite_lru_counter;
#else
_sprite_lru_cur[sprite] = ++_sprite_lru_counter;
_sprite_lru[sprite] = 0;
#endif
p = _sprite_ptr[sprite];
// Load the sprite, if it is not loaded, yet