2 files changed, 15 insertions, 7 deletions
diff --git a/indra/newview/llviewertexture.cpp b/indra/newview/llviewertexture.cpp
index 831551a0a7..5330c4da86 100755
--- a/indra/newview/llviewertexture.cpp
+++ b/indra/newview/llviewertexture.cpp
@@ -1046,7 +1046,7 @@ void LLViewerFetchedTexture::init(bool firstinit)
 	mLastReferencedSavedRawImageTime = 0.0f ;
 	mKeptSavedRawImageTime = 0.f ;
 	mLastCallBackActiveTime = 0.f;
-
+	mForceCallbackFetch = FALSE;
 	mInDebug = FALSE;
 
 	mFTType = FTT_UNKNOWN;
@@ -2281,6 +2281,7 @@ void LLViewerFetchedTexture::unpauseLoadedCallbacks(const LLLoadedCallbackEntry:
 	}
 	mPauseLoadedCallBacks = FALSE ;
 	mLastCallBackActiveTime = sCurrentTime ;
+	mForceCallbackFetch = TRUE;
 	if(need_raw)
 	{
 		mSaveRawImage = TRUE ;
@@ -2321,6 +2322,7 @@ void LLViewerFetchedTexture::pauseLoadedCallbacks(const LLLoadedCallbackEntry::s
 bool LLViewerFetchedTexture::doLoadedCallbacks()
 {
 	static const F32 MAX_INACTIVE_TIME = 900.f ; //seconds
+	static const F32 MAX_IDLE_WAIT_TIME = 5.f ; //seconds
 
 	if (mNeedsCreateTexture)
 	{
@@ -2525,6 +2527,9 @@ bool LLViewerFetchedTexture::doLoadedCallbacks()
 		}
 	}
 
+	// Done with any raw image data at this point (will be re-created if we still have callbacks)
+	destroyRawImage();
+
 	//
 	// If we have no callbacks, take us off of the image callback list.
 	//
@@ -2532,10 +2537,13 @@ bool LLViewerFetchedTexture::doLoadedCallbacks()
 	{
 		gTextureList.mCallbackList.erase(this);
 	}
+	else if(!res && mForceCallbackFetch && sCurrentTime - mLastCallBackActiveTime > MAX_IDLE_WAIT_TIME && !mIsFetching)
+	{
+		//wait for long enough but no fetching request issued, force one.
+		forceToRefetchTexture(mLoadedCallbackDesiredDiscardLevel, 5.f);
+		mForceCallbackFetch = FALSE; //fire once.
+	}
 
-	// Done with any raw image data at this point (will be re-created if we still have callbacks)
-	destroyRawImage();
-	
 	return res;
 }
 
@@ -2774,9 +2782,8 @@ void LLViewerFetchedTexture::saveRawImage()
 }
 
 //force to refetch the texture to the discard level 
-void LLViewerFetchedTexture::forceToRefetchTexture(S32 desired_discard)
+void LLViewerFetchedTexture::forceToRefetchTexture(S32 desired_discard, F32 kept_time)
 {
-	F32 kept_time = 60.0; //seconds
 	if(mForceToSaveRawImage)
 	{
 		desired_discard = llmin(desired_discard, mDesiredSavedRawDiscardLevel);
diff --git a/indra/newview/llviewertexture.h b/indra/newview/llviewertexture.h
index 31430c31e0..7e45fcaf4b 100755
--- a/indra/newview/llviewertexture.h
+++ b/indra/newview/llviewertexture.h
@@ -388,7 +388,7 @@ public:
 	BOOL        isCachedRawImageReady() const {return mCachedRawImageReady ;}
 	BOOL        isRawImageValid()const { return mIsRawImageValid ; }	
 	void        forceToSaveRawImage(S32 desired_discard = 0, F32 kept_time = 0.f) ;
-	void        forceToRefetchTexture(S32 desired_discard = 0);
+	void        forceToRefetchTexture(S32 desired_discard = 0, F32 kept_time = 60.f);
 	/*virtual*/ void setCachedRawImage(S32 discard_level, LLImageRaw* imageraw) ;
 	void        destroySavedRawImage() ;
 	LLImageRaw* getSavedRawImage() ;
@@ -423,6 +423,7 @@ private:
 	BOOL  mFullyLoaded;
 	BOOL  mInDebug;
 	BOOL  mInFastCacheList;
+	BOOL  mForceCallbackFetch;
 
 protected:		
 	std::string mLocalFileName;