1 files changed, 32 insertions, 7 deletions

diff --git a/indra/newview/llviewertexture.cpp b/indra/newview/llviewertexture.cpp
index f5fb074992..4da0f80a00 100644
--- a/indra/newview/llviewertexture.cpp
+++ b/indra/newview/llviewertexture.cpp
@@ -835,7 +835,7 @@ BOOL LLViewerTexture::createGLTexture(S32 discard_level, const LLImageRaw* image
 	llassert(mGLTexturep.notNull()) ;	
 
 	BOOL ret = mGLTexturep->createGLTexture(discard_level, imageraw, usename, to_create, category) ;
-	
+
 	if(ret)
 	{
 		mFullWidth = mGLTexturep->getCurrentWidth() ;
@@ -1168,6 +1168,7 @@ void LLViewerFetchedTexture::init(bool firstinit)
 	mSavedRawDiscardLevel = -1 ;
 	mDesiredSavedRawDiscardLevel = -1 ;
 	mLastReferencedSavedRawImageTime = 0.0f ;
+	mKeptSavedRawImageTime = 0.f ;
 	mLastCallBackActiveTime = 0.f;
 }
 
@@ -1422,8 +1423,15 @@ BOOL LLViewerFetchedTexture::createTexture(S32 usename/*= 0*/)
 		mOrigWidth = mRawImage->getWidth();
 		mOrigHeight = mRawImage->getHeight();
 
-		// leave black border, do not scale image content
-		mRawImage->expandToPowerOfTwo(MAX_IMAGE_SIZE, FALSE);
+			
+		if (mBoostLevel == BOOST_PREVIEW)
+		{ 
+			mRawImage->biasedScaleToPowerOfTwo(1024);
+		}
+		else
+		{ // leave black border, do not scale image content
+			mRawImage->expandToPowerOfTwo(MAX_IMAGE_SIZE, FALSE);
+		}
 		
 		mFullWidth = mRawImage->getWidth();
 		mFullHeight = mRawImage->getHeight();
@@ -1583,7 +1591,7 @@ F32 LLViewerFetchedTexture::calcDecodePriority()
 
 	S32 cur_discard = getCurrentDiscardLevelForFetching();
 	bool have_all_data = (cur_discard >= 0 && (cur_discard <= mDesiredDiscardLevel));
-	F32 pixel_priority = fsqrtf(mMaxVirtualSize);
+	F32 pixel_priority = (F32) sqrt(mMaxVirtualSize);
 
 	F32 priority = 0.f;
 
@@ -2689,8 +2697,16 @@ void LLViewerFetchedTexture::saveRawImage()
 	mLastReferencedSavedRawImageTime = sCurrentTime ;
 }
 
-void LLViewerFetchedTexture::forceToSaveRawImage(S32 desired_discard) 
+void LLViewerFetchedTexture::forceToSaveRawImage(S32 desired_discard, F32 kept_time) 
 { 
+	mKeptSavedRawImageTime = kept_time ;
+	mLastReferencedSavedRawImageTime = sCurrentTime ;
+
+	if(mSavedRawDiscardLevel > -1 && mSavedRawDiscardLevel <= desired_discard)
+	{
+		return ; //raw imge is ready.
+	}
+
 	if(!mForceToSaveRawImage || mDesiredSavedRawDiscardLevel < 0 || mDesiredSavedRawDiscardLevel > desired_discard)
 	{
 		mForceToSaveRawImage = TRUE ;
@@ -2706,11 +2722,19 @@ void LLViewerFetchedTexture::forceToSaveRawImage(S32 desired_discard)
 
 			mRawImage = NULL ;
 			mRawDiscardLevel = INVALID_DISCARD_LEVEL ;
-		}
+		}		
 	}
 }
 void LLViewerFetchedTexture::destroySavedRawImage()
 {
+	if(mLastReferencedSavedRawImageTime < mKeptSavedRawImageTime)
+	{
+		return ; //keep the saved raw image.
+	}
+
+	mForceToSaveRawImage  = FALSE ;
+	mSaveRawImage = FALSE ;
+
 	clearCallbackEntryList() ;
 	
 	mSavedRawImage = NULL ;
@@ -2719,6 +2743,7 @@ void LLViewerFetchedTexture::destroySavedRawImage()
 	mSavedRawDiscardLevel = -1 ;
 	mDesiredSavedRawDiscardLevel = -1 ;
 	mLastReferencedSavedRawImageTime = 0.0f ;
+	mKeptSavedRawImageTime = 0.f ;
 }
 
 LLImageRaw* LLViewerFetchedTexture::getSavedRawImage() 
@@ -2870,7 +2895,7 @@ BOOL LLViewerFetchedTexture::insertToAtlas()
 	}
 
 	//process the waiting_list
-	for(ll_face_list_t::iterator iter = waiting_list.begin(); iter != waiting_list.end(); ++iter)
+	for(std::vector<LLFace*>::iterator iter = waiting_list.begin(); iter != waiting_list.end(); ++iter)
 	{
 		facep = (LLFace*)*iter ;	
 		groupp = facep->getDrawable()->getSpatialGroup() ;