diff --git a/indra/newview/lltexturecache.cpp b/indra/newview/lltexturecache.cpp index 7143c19ec9..b633dc4fed 100644 --- a/indra/newview/lltexturecache.cpp +++ b/indra/newview/lltexturecache.cpp @@ -2082,6 +2082,28 @@ LLPointer LLTextureCache::readFromFastCache(const LLUUID& id, S32& d } LLPointer raw = new LLImageRaw(data, head[0], head[1], head[2], true); + // + // This fixes the invalid discard values from being created which cause the decoder code to fail when trying to handle 6 and 7's which are above the MAX_DISCARD_LEVEL of 5 + // especially on load + // We will expand the 16x16 texture to the actual MAX_DISCARD_LEVEL texture size, it may be blurry until the user gets closer but 5 discard value should be objects far from the camera. + // So a 1024x1024 texture with a dicard of 6 will become 32x32 and a 2048x2048 texture with a discard of 7 will become a 64x64 texture. + if (discardlevel > MAX_DISCARD_LEVEL) + { + S32 w = head[0]; // Get the current width from the header (16) + S32 h = head[1]; // Get the current height from the header (16) + + // Expand the width and height by teh difference between the discard and MAX_DISCARD_LEVEL bit shifted to the left. (Expand power of 2 textures) + w <<= MAX_DISCARD_LEVEL - discardlevel; + h <<= MAX_DISCARD_LEVEL - discardlevel; + + // Set the discard level to the MAX_DISCARD_LEVEL + discardlevel = MAX_DISCARD_LEVEL; + + // Scale up the texture and scale the actual data, as we just created it above, it should be fine. + raw->scale(w, h, true); + } + // + return raw; }