mirror of
https://github.com/DrBeef/Raze.git
synced 2024-12-15 23:21:21 +00:00
139 lines
2.5 KiB
C++
139 lines
2.5 KiB
C++
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CACHENODE Resource::purgeHead = { NULL, &purgeHead, &purgeHead, 0 };
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void *Resource::Lock(DICTNODE *h)
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{
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dassert(h != NULL);
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if (h->ptr)
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{
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if (h->lockCount == 0)
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{
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RemoveMRU(h);
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}
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}
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else
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{
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h->ptr = Alloc(h->size);
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Read(h);
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}
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h->lockCount++;
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return h->ptr;
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}
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void Resource::Unlock(DICTNODE *h)
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{
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dassert(h != NULL);
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dassert(h->ptr != NULL);
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if (h->lockCount > 0)
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{
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h->lockCount--;
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if (h->lockCount == 0)
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{
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h->prev = purgeHead.prev;
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purgeHead.prev->next = h;
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h->next = &purgeHead;
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purgeHead.prev = h;
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}
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}
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}
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void Resource::Flush(CACHENODE *h)
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{
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if (h->ptr)
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{
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#ifdef USE_QHEAP
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heap->Free(h->ptr);
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#else
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delete[] (char*)h->ptr;
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#endif
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h->ptr = NULL;
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if (h->lockCount == 0)
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{
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RemoveMRU(h);
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return;
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}
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h->lockCount = 0;
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}
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}
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void Resource::Purge(void)
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{
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for (unsigned int i = 0; i < count; i++)
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{
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if (dict[i].ptr)
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{
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Flush((CACHENODE *)&dict[i]);
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}
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}
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}
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void Resource::PurgeCache(void)
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{
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#ifndef USE_QHEAP
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for (CACHENODE *node = purgeHead.next; node != &purgeHead; node = node->next)
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{
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DICTNODE *pDict = (DICTNODE*)node;
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if (!(pDict->flags & DICT_LOAD))
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{
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dassert(pDict->lockCount == 0);
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dassert(pDict->ptr != NULL);
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Free(pDict->ptr);
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pDict->ptr = NULL;
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RemoveMRU(pDict);
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}
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}
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#endif
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}
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void *Resource::Load(DICTNODE *h)
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{
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dassert(h != NULL);
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if (h->ptr)
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{
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if (!h->lockCount)
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{
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RemoveMRU(h);
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h->prev = purgeHead.prev;
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purgeHead.prev->next = h;
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h->next = &purgeHead;
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purgeHead.prev = h;
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}
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}
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else
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{
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h->ptr = Alloc(h->size);
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Read(h);
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h->prev = purgeHead.prev;
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purgeHead.prev->next = h;
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h->next = &purgeHead;
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purgeHead.prev = h;
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}
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return h->ptr;
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}
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void Resource::RemoveMRU(CACHENODE *h)
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{
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h->prev->next = h->next;
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h->next->prev = h->prev;
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}
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void Resource::PrecacheSounds(void)
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{
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for (unsigned int i = 0; i < count; i++)
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{
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DICTNODE *pNode = &dict[i];
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if ((!strcmp(pNode->type, "RAW") || !strcmp(pNode->type, "SFX")) && !pNode->ptr)
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{
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Load(pNode);
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gameHandleEvents();
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}
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}
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}
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