diff options
Diffstat (limited to 'indra/newview/lltexturecache.cpp')
| -rw-r--r-- | indra/newview/lltexturecache.cpp | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/indra/newview/lltexturecache.cpp b/indra/newview/lltexturecache.cpp index 2e52414d71..649a994648 100644 --- a/indra/newview/lltexturecache.cpp +++ b/indra/newview/lltexturecache.cpp @@ -52,7 +52,8 @@ const S32 TEXTURE_CACHE_ENTRY_SIZE = FIRST_PACKET_SIZE;//1024; const F32 TEXTURE_CACHE_PURGE_AMOUNT = .20f; // % amount to reduce the cache by when it exceeds its limit const F32 TEXTURE_CACHE_LRU_SIZE = .10f; // % amount for LRU list (low overhead to regenerate) const S32 TEXTURE_FAST_CACHE_ENTRY_OVERHEAD = sizeof(S32) * 4; //w, h, c, level -const S32 TEXTURE_FAST_CACHE_ENTRY_SIZE = 16 * 16 * 4 + TEXTURE_FAST_CACHE_ENTRY_OVERHEAD; +const S32 TEXTURE_FAST_CACHE_DATA_SIZE = 16 * 16 * 4; +const S32 TEXTURE_FAST_CACHE_ENTRY_SIZE = TEXTURE_FAST_CACHE_DATA_SIZE + TEXTURE_FAST_CACHE_ENTRY_OVERHEAD; const F32 TEXTURE_LAZY_PURGE_TIME_LIMIT = .004f; // 4ms. Would be better to autoadjust, but there is a major cache rework in progress. class LLTextureCacheWorker : public LLWorkerClass @@ -2065,7 +2066,9 @@ LLPointer<LLImageRaw> LLTextureCache::readFromFastCache(const LLUUID& id, S32& d } S32 image_size = head[0] * head[1] * head[2]; - if(!image_size) //invalid + if(image_size <= 0 + || image_size > TEXTURE_FAST_CACHE_DATA_SIZE + || head[3] < 0) //invalid { closeFastCache(); return NULL; @@ -2144,7 +2147,7 @@ bool LLTextureCache::writeToFastCache(LLUUID image_id, S32 id, LLPointer<LLImage S32 i = 0 ; - while(((w >> i) * (h >> i) * c) > TEXTURE_FAST_CACHE_ENTRY_SIZE - TEXTURE_FAST_CACHE_ENTRY_OVERHEAD) + while(((w >> i) * (h >> i) * c) > TEXTURE_FAST_CACHE_DATA_SIZE) { ++i ; } |