Second Life viewer sources 1.20.2

1 files changed, 12 insertions, 0 deletions

diff --git a/linden/indra/llimagej2coj/llimagej2coj.cpp b/linden/indra/llimagej2coj/llimagej2coj.cpp
index 3ca271c..01868fd 100644
--- a/linden/indra/llimagej2coj/llimagej2coj.cpp
+++ b/linden/indra/llimagej2coj/llimagej2coj.cpp
@@ -158,6 +158,18 @@ BOOL LLImageJ2COJ::decodeImpl(LLImageJ2C &base, LLImageRaw &raw_image, F32 decod
                 return TRUE; // done
         }
 
+        // sometimes we get bad data out of the cache - check to see if the decode succeeded
+        for (S32 i = 0; i < image->numcomps; i++)
+        {
+                if (image->comps[i].factor != base.getRawDiscardLevel())
+                {
+                        // if we didn't get the discard level we're expecting, fail
+                        opj_image_destroy(image);
+                        base.mDecoding = FALSE;
+                        return TRUE;
+                }
+        }
+        
         // Copy image data into our raw image format (instead of the separate channel format
 
         S32 img_components = image->numcomps;