merge with viewer-release

1 files changed, 145 insertions, 272 deletions

diff --git a/indra/newview/llviewertexture.cpp b/indra/newview/llviewertexture.cpp
index 4c9ca8b1d7..f929492887 100755
--- a/indra/newview/llviewertexture.cpp
+++ b/indra/newview/llviewertexture.cpp
@@ -55,8 +55,6 @@
 #include "llappviewer.h"
 #include "llface.h"
 #include "llviewercamera.h"
-#include "lltextureatlas.h"
-#include "lltextureatlasmanager.h"
 #include "lltextureentry.h"
 #include "lltexturemanagerbridge.h"
 #include "llmediaentry.h"
@@ -73,6 +71,7 @@ LLPointer<LLViewerFetchedTexture> LLViewerFetchedTexture::sMissingAssetImagep =
 LLPointer<LLViewerFetchedTexture> LLViewerFetchedTexture::sWhiteImagep = NULL;
 LLPointer<LLViewerFetchedTexture> LLViewerFetchedTexture::sDefaultImagep = NULL;
 LLPointer<LLViewerFetchedTexture> LLViewerFetchedTexture::sSmokeImagep = NULL;
+LLPointer<LLViewerFetchedTexture> LLViewerFetchedTexture::sFlatNormalImagep = NULL;
 LLViewerMediaTexture::media_map_t LLViewerMediaTexture::sMediaMap ;
 LLTexturePipelineTester* LLViewerTextureManager::sTesterp = NULL ;
 const std::string sTesterName("TextureTester");
@@ -98,7 +97,6 @@ S32 LLViewerTexture::sMinLargeImageSize = 65536 ; //256 * 256.
 S32 LLViewerTexture::sMaxSmallImageSize = MAX_CACHED_RAW_IMAGE_AREA ;
 BOOL LLViewerTexture::sFreezeImageScalingDown = FALSE ;
 F32 LLViewerTexture::sCurrentTime = 0.0f ;
-BOOL LLViewerTexture::sUseTextureAtlas        = FALSE ;
 F32  LLViewerTexture::sTexelPixelRatio = 1.0f;
 
 LLViewerTexture::EDebugTexels LLViewerTexture::sDebugTexelsMode = LLViewerTexture::DEBUG_TEXELS_OFF;
@@ -277,7 +275,7 @@ LLViewerFetchedTexture* LLViewerTextureManager::getFetchedTexture(
 }
 	
 LLViewerFetchedTexture* LLViewerTextureManager::getFetchedTextureFromFile(
-	                                               const std::string& filename,
+	                                               const std::string& filename,												   
 												   FTType f_type,
 												   BOOL usemipmaps,
 												   LLViewerTexture::EBoostLevel boost_priority,
@@ -290,7 +288,7 @@ LLViewerFetchedTexture* LLViewerTextureManager::getFetchedTextureFromFile(
 }
 
 //static 
-LLViewerFetchedTexture* LLViewerTextureManager::getFetchedTextureFromUrl(const std::string& url,
+LLViewerFetchedTexture* LLViewerTextureManager::getFetchedTextureFromUrl(const std::string& url,									 
 									 FTType f_type,
 									 BOOL usemipmaps,
 									 LLViewerTexture::EBoostLevel boost_priority,
@@ -397,7 +395,7 @@ void LLViewerTextureManager::init()
 	LLViewerTexture::sCheckerBoardImagep = LLViewerTextureManager::getLocalTexture(image_raw.get(), TRUE);
 
 	LLViewerTexture::initClass() ;
-	
+
 	// Create a texture manager bridge.
 	gTextureManagerBridgep = new LLViewerTextureManagerBridge;
 
@@ -425,6 +423,7 @@ void LLViewerTextureManager::cleanup()
 	LLViewerFetchedTexture::sSmokeImagep = NULL;
 	LLViewerFetchedTexture::sMissingAssetImagep = NULL;
 	LLViewerFetchedTexture::sWhiteImagep = NULL;
+	LLViewerFetchedTexture::sFlatNormalImagep = NULL;
 
 	LLViewerMediaTexture::cleanUpClass() ;	
 }
@@ -565,8 +564,7 @@ void LLViewerTexture::updateClass(const F32 velocity, const F32 angular_velocity
 		}
 	}
 	sDesiredDiscardBias = llclamp(sDesiredDiscardBias, desired_discard_bias_min, desired_discard_bias_max);
-	LLViewerTexture::sUseTextureAtlas = gSavedSettings.getBOOL("EnableTextureAtlas") ;
-	
+		
 	F32 camera_moving_speed = LLViewerCamera::getInstance()->getAverageSpeed() ;
 	F32 camera_angular_speed = LLViewerCamera::getInstance()->getAverageAngularSpeed();
 	sCameraMovingBias = llmax(0.2f * camera_moving_speed, 2.0f * camera_angular_speed - 1);
@@ -632,9 +630,14 @@ void LLViewerTexture::init(bool firstinit)
 	mMaxVirtualSizeResetCounter = mMaxVirtualSizeResetInterval ;
 	mAdditionalDecodePriority = 0.f ;	
 	mParcelMedia = NULL ;
-	mNumFaces = 0 ;
+	
 	mNumVolumes = 0;
-	mFaceList.clear() ;
+	mFaceList[LLRender::DIFFUSE_MAP].clear() ;
+	mFaceList[LLRender::NORMAL_MAP].clear() ;
+	mFaceList[LLRender::SPECULAR_MAP].clear() ;
+	mNumFaces[LLRender::DIFFUSE_MAP] = 
+	mNumFaces[LLRender::NORMAL_MAP] = 
+	mNumFaces[LLRender::SPECULAR_MAP] = 0 ;
 	mVolumeList.clear();
 }
 
@@ -646,7 +649,9 @@ S8 LLViewerTexture::getType() const
 
 void LLViewerTexture::cleanup()
 {
-	mFaceList.clear() ;
+	mFaceList[LLRender::DIFFUSE_MAP].clear() ;
+	mFaceList[LLRender::NORMAL_MAP].clear() ;
+	mFaceList[LLRender::SPECULAR_MAP].clear() ;
 	mVolumeList.clear();
 }
 
@@ -762,38 +767,57 @@ void LLViewerTexture::setKnownDrawSize(S32 width, S32 height)
 }
 
 //virtual
-void LLViewerTexture::addFace(LLFace* facep) 
+void LLViewerTexture::addFace(U32 ch, LLFace* facep) 
 {
-	if(mNumFaces >= mFaceList.size())
+	llassert(ch < LLRender::NUM_TEXTURE_CHANNELS);
+
+	if(mNumFaces[ch] >= mFaceList[ch].size())
 	{
-		mFaceList.resize(2 * mNumFaces + 1) ;		
+		mFaceList[ch].resize(2 * mNumFaces[ch] + 1) ;		
 	}
-	mFaceList[mNumFaces] = facep ;
-	facep->setIndexInTex(mNumFaces) ;
-	mNumFaces++ ;
+	mFaceList[ch][mNumFaces[ch]] = facep ;
+	facep->setIndexInTex(ch, mNumFaces[ch]) ;
+	mNumFaces[ch]++ ;
 	mLastFaceListUpdateTimer.reset() ;
 }
 
 //virtual
-void LLViewerTexture::removeFace(LLFace* facep) 
+void LLViewerTexture::removeFace(U32 ch, LLFace* facep) 
 {
-	if(mNumFaces > 1)
+	llassert(ch < LLRender::NUM_TEXTURE_CHANNELS);
+
+	if(mNumFaces[ch] > 1)
 	{
-		S32 index = facep->getIndexInTex() ; 
-		mFaceList[index] = mFaceList[--mNumFaces] ;
-		mFaceList[index]->setIndexInTex(index) ;
+		S32 index = facep->getIndexInTex(ch) ; 
+		llassert(index < mFaceList[ch].size());
+		llassert(index < mNumFaces[ch]);
+		mFaceList[ch][index] = mFaceList[ch][--mNumFaces[ch]] ;
+		mFaceList[ch][index]->setIndexInTex(ch, index) ;
 	}
 	else 
 	{
-		mFaceList.clear() ;
-		mNumFaces = 0 ;
+		mFaceList[ch].clear() ;
+		mNumFaces[ch] = 0 ;
 	}
 	mLastFaceListUpdateTimer.reset() ;
 }
 
-S32 LLViewerTexture::getNumFaces() const
+S32 LLViewerTexture::getTotalNumFaces() const
 {
-	return mNumFaces ;
+	S32 ret = 0;
+
+	for (U32 i = 0; i < LLRender::NUM_TEXTURE_CHANNELS; ++i)
+	{
+		ret += mNumFaces[i];
+	}
+
+	return ret;
+}
+
+S32 LLViewerTexture::getNumFaces(U32 ch) const
+{
+	llassert(ch < LLRender::NUM_TEXTURE_CHANNELS);
+	return mNumFaces[ch];
 }
 
 
@@ -816,6 +840,8 @@ void LLViewerTexture::removeVolume(LLVOVolume* volumep)
 	if(mNumVolumes > 1)
 	{
 		S32 index = volumep->getIndexInTex() ; 
+		llassert(index < mVolumeList.size());
+		llassert(index < mNumVolumes);
 		mVolumeList[index] = mVolumeList[--mNumVolumes] ;
 		mVolumeList[index]->setIndexInTex(index) ;
 	}
@@ -837,18 +863,22 @@ void LLViewerTexture::reorganizeFaceList()
 	static const F32 MAX_WAIT_TIME = 20.f; // seconds
 	static const U32 MAX_EXTRA_BUFFER_SIZE = 4 ;
 
-	if(mNumFaces + MAX_EXTRA_BUFFER_SIZE > mFaceList.size())
+	if(mLastFaceListUpdateTimer.getElapsedTimeF32() < MAX_WAIT_TIME)
 	{
-		return ;
+		return;
 	}
 
-	if(mLastFaceListUpdateTimer.getElapsedTimeF32() < MAX_WAIT_TIME)
+	for (U32 i = 0; i < LLRender::NUM_TEXTURE_CHANNELS; ++i)
 	{
-		return ;
+		if(mNumFaces[i] + MAX_EXTRA_BUFFER_SIZE > mFaceList[i].size())
+		{
+			return ;
+		}
+			
+		mFaceList[i].erase(mFaceList[i].begin() + mNumFaces[i], mFaceList[i].end());
 	}
-
+	
 	mLastFaceListUpdateTimer.reset() ;
-	mFaceList.erase(mFaceList.begin() + mNumFaces, mFaceList.end());
 }
 
 void LLViewerTexture::reorganizeVolumeList()
@@ -1198,7 +1228,7 @@ void LLViewerFetchedTexture::destroyTexture()
 	{
 		return ;
 	}
-
+	
 	//LL_DEBUGS("Avatar") << mID << llendl;
 	destroyGLTexture() ;
 	mFullyLoaded = FALSE ;
@@ -1215,9 +1245,14 @@ void LLViewerFetchedTexture::addToCreateTexture()
 		mGLTexturep->setComponents(mComponents) ;
 		force_update = true ;
 
-		for(U32 i = 0 ; i < mNumFaces ; i++)
+		for (U32 j = 0; j < LLRender::NUM_TEXTURE_CHANNELS; ++j)
 		{
-			mFaceList[i]->dirtyTexture() ;
+			llassert(mNumFaces[j] <= mFaceList[j].size());
+
+			for(U32 i = 0 ; i < mNumFaces[j]; i++)
+			{
+				mFaceList[j][i]->dirtyTexture() ;
+			}
 		}
 
 		//discard the cached raw image and the saved raw image
@@ -1361,11 +1396,8 @@ BOOL LLViewerFetchedTexture::createTexture(S32 usename/*= 0*/)
 		return FALSE;
 	}
 	
-	if(!(res = insertToAtlas()))
-	{
-		res = mGLTexturep->createGLTexture(mRawDiscardLevel, mRawImage, usename, TRUE, mBoostLevel);
-		resetFaceAtlas() ;
-	}
+	res = mGLTexturep->createGLTexture(mRawDiscardLevel, mRawImage, usename, TRUE, mBoostLevel);
+	
 	setActive() ;
 
 	if (!needsToSaveRawImage())
@@ -1654,28 +1686,32 @@ void LLViewerFetchedTexture::updateVirtualSize()
 		addTextureStats(0.f, FALSE) ;//reset
 	}
 
-	for(U32 i = 0 ; i < mNumFaces ; i++)
-	{				
-		LLFace* facep = mFaceList[i] ;
-		if( facep )
-		{
-			LLDrawable* drawable = facep->getDrawable();
-			if (drawable)
+	for (U32 ch = 0; ch < LLRender::NUM_TEXTURE_CHANNELS; ++ch)
+	{
+		llassert(mNumFaces[ch] <= mFaceList[ch].size());
+
+		for(U32 i = 0 ; i < mNumFaces[ch]; i++)
+		{				
+			LLFace* facep = mFaceList[ch][i] ;
+			if( facep )
 			{
-				if(drawable->isRecentlyVisible())
+				LLDrawable* drawable = facep->getDrawable();
+				if (drawable)
 				{
-					if (getBoostLevel() == LLViewerTexture::BOOST_NONE && 
-						drawable->getVObj() && drawable->getVObj()->isSelected())
+					if(drawable->isRecentlyVisible())
 					{
-						setBoostLevel(LLViewerTexture::BOOST_SELECTED);
+						if (getBoostLevel() == LLViewerTexture::BOOST_NONE && 
+							drawable->getVObj() && drawable->getVObj()->isSelected())
+						{
+							setBoostLevel(LLViewerTexture::BOOST_SELECTED);
+						}
+						addTextureStats(facep->getVirtualSize()) ;
+						setAdditionalDecodePriority(facep->getImportanceToCamera()) ;
 					}
-					addTextureStats(facep->getVirtualSize()) ;
-					setAdditionalDecodePriority(facep->getImportanceToCamera()) ;
 				}
 			}
 		}
 	}
-
 	//reset whether or not a face was selected after 10 seconds
 	const F32 SELECTION_RESET_TIME = 10.f;
 
@@ -2780,190 +2816,6 @@ F32 LLViewerFetchedTexture::getElapsedLastReferencedSavedRawImageTime() const
 { 
 	return sCurrentTime - mLastReferencedSavedRawImageTime ;
 }
-//----------------------------------------------------------------------------------------------
-//atlasing
-//----------------------------------------------------------------------------------------------
-void LLViewerFetchedTexture::resetFaceAtlas()
-{
-	//Nothing should be done here.
-}
-
-//invalidate all atlas slots for this image.
-void LLViewerFetchedTexture::invalidateAtlas(BOOL rebuild_geom)
-{
-	for(U32 i = 0 ; i < mNumFaces ; i++)
-	{
-		LLFace* facep = mFaceList[i] ;
-		facep->removeAtlas() ;
-		if(rebuild_geom && facep->getDrawable() && facep->getDrawable()->getSpatialGroup())
-		{
-			facep->getDrawable()->getSpatialGroup()->setState(LLSpatialGroup::GEOM_DIRTY);
-		}
-	}
-}
-
-BOOL LLViewerFetchedTexture::insertToAtlas()
-{
-	if(!LLViewerTexture::sUseTextureAtlas)
-	{
-		return FALSE ;
-	}
-	if(getNumFaces() < 1)
-	{
-		return FALSE ;
-	}						
-	if(mGLTexturep->getDiscardLevelInAtlas() > 0 && mRawDiscardLevel >= mGLTexturep->getDiscardLevelInAtlas())
-	{
-		return FALSE ;
-	}
-	if(!LLTextureAtlasManager::getInstance()->canAddToAtlas(mRawImage->getWidth(), mRawImage->getHeight(), mRawImage->getComponents(), mGLTexturep->getTexTarget()))
-	{
-		return FALSE ;
-	}
-
-	BOOL ret = TRUE ;//if ret is set to false, will generate a gl texture for this image.
-	S32 raw_w = mRawImage->getWidth() ;
-	S32 raw_h = mRawImage->getHeight() ;
-	F32 xscale = 1.0f, yscale = 1.0f ;
-	LLPointer<LLTextureAtlasSlot> slot_infop;
-	LLTextureAtlasSlot* cur_slotp ;//no need to be smart pointer.
-	LLSpatialGroup* groupp ;
-	LLFace* facep;
-
-	//if the atlas slot pointers for some faces are null, process them later.
-	ll_face_list_t waiting_list ;
-	for(U32 i = 0 ; i < mNumFaces ; i++)
-	{
-		{
-			facep = mFaceList[i] ;			
-			
-			//face can not use atlas.
-			if(!facep->canUseAtlas())
-			{
-				if(facep->getAtlasInfo())
-				{
-					facep->removeAtlas() ;	
-				}
-				ret = FALSE ;
-				continue ;
-			}
-
-			//the atlas slot is updated
-			slot_infop = facep->getAtlasInfo() ;
-			groupp = facep->getDrawable()->getSpatialGroup() ;	
-
-			if(slot_infop) 
-			{
-				if(slot_infop->getSpatialGroup() != groupp)
-				{
-					if((cur_slotp = groupp->getCurUpdatingSlot(this))) //switch slot
-					{
-						facep->setAtlasInfo(cur_slotp) ;
-						facep->setAtlasInUse(TRUE) ;
-						continue ;
-					}
-					else //do not forget to update slot_infop->getSpatialGroup().
-					{
-						LLSpatialGroup* gp = slot_infop->getSpatialGroup() ;
-						gp->setCurUpdatingTime(gFrameCount) ;
-						gp->setCurUpdatingTexture(this) ;
-						gp->setCurUpdatingSlot(slot_infop) ;
-					}
-				}
-				else //same group
-				{
-					if(gFrameCount && slot_infop->getUpdatedTime() == gFrameCount)//slot is just updated
-					{
-						facep->setAtlasInUse(TRUE) ;
-						continue ;
-					}
-				}
-			}				
-			else
-			{
-				//if the slot is null, wait to process them later.
-				waiting_list.push_back(facep) ;
-				continue ;
-			}
-						
-			//----------
-			//insert to atlas
-			if(!slot_infop->getAtlas()->insertSubTexture(mGLTexturep, mRawDiscardLevel, mRawImage, slot_infop->getSlotCol(), slot_infop->getSlotRow()))			
-			{
-				
-				//the texture does not qualify to add to atlas, do not bother to try for other faces.
-				//invalidateAtlas();
-				return FALSE ;
-			}
-			
-			//update texture scale		
-			slot_infop->getAtlas()->getTexCoordScale(raw_w, raw_h, xscale, yscale) ;
-			slot_infop->setTexCoordScale(xscale, yscale) ;
-			slot_infop->setValid() ;
-			slot_infop->setUpdatedTime(gFrameCount) ;
-			
-			//update spatial group atlas info
-			groupp->setCurUpdatingTime(gFrameCount) ;
-			groupp->setCurUpdatingTexture(this) ;
-			groupp->setCurUpdatingSlot(slot_infop) ;
-
-			//make the face to switch to the atlas.
-			facep->setAtlasInUse(TRUE) ;
-		}
-	}
-
-	//process the waiting_list
-	for(std::vector<LLFace*>::iterator iter = waiting_list.begin(); iter != waiting_list.end(); ++iter)
-	{
-		facep = (LLFace*)*iter ;	
-		groupp = facep->getDrawable()->getSpatialGroup() ;
-
-		//check if this texture already inserted to atlas for this group
-		if((cur_slotp = groupp->getCurUpdatingSlot(this)))
-		{
-			facep->setAtlasInfo(cur_slotp) ;
-			facep->setAtlasInUse(TRUE) ;		
-			continue ;
-		}
-
-		//need to reserve a slot from atlas
-		slot_infop = LLTextureAtlasManager::getInstance()->reserveAtlasSlot(llmax(mFullWidth, mFullHeight), getComponents(), groupp, this) ;	
-
-		facep->setAtlasInfo(slot_infop) ;
-		
-		groupp->setCurUpdatingTime(gFrameCount) ;
-		groupp->setCurUpdatingTexture(this) ;
-		groupp->setCurUpdatingSlot(slot_infop) ;
-
-		//slot allocation failed.
-		if(!slot_infop || !slot_infop->getAtlas())
-		{			
-			ret = FALSE ;
-			facep->setAtlasInUse(FALSE) ;
-			continue ;
-		}
-				
-		//insert to atlas
-		if(!slot_infop->getAtlas()->insertSubTexture(mGLTexturep, mRawDiscardLevel, mRawImage, slot_infop->getSlotCol(), slot_infop->getSlotRow()))
-		{
-			//the texture does not qualify to add to atlas, do not bother to try for other faces.
-			ret = FALSE ;
-			//invalidateAtlas();
-			break ; 
-		}
-		
-		//update texture scale		
-		slot_infop->getAtlas()->getTexCoordScale(raw_w, raw_h, xscale, yscale) ;
-		slot_infop->setTexCoordScale(xscale, yscale) ;
-		slot_infop->setValid() ;
-		slot_infop->setUpdatedTime(gFrameCount) ;
-
-		//make the face to switch to the atlas.
-		facep->setAtlasInUse(TRUE) ;
-	}
-	
-	return ret ;
-}
 
 //----------------------------------------------------------------------------------------------
 //end of LLViewerFetchedTexture
@@ -3310,11 +3162,14 @@ BOOL LLViewerMediaTexture::findFaces()
 	LLViewerTexture* tex = gTextureList.findImage(mID) ;
 	if(tex) //this media is a parcel media for tex.
 	{
-		const ll_face_list_t* face_list = tex->getFaceList() ;
-		U32 end = tex->getNumFaces() ;
-		for(U32 i = 0 ; i < end ; i++)
+		for (U32 ch = 0; ch < LLRender::NUM_TEXTURE_CHANNELS; ++ch)
 		{
-			mMediaFaceList.push_back((*face_list)[i]) ;
+			const ll_face_list_t* face_list = tex->getFaceList(ch) ;
+			U32 end = tex->getNumFaces(ch) ;
+			for(U32 i = 0 ; i < end ; i++)
+			{
+				mMediaFaceList.push_back((*face_list)[i]) ;
+			}
 		}
 	}
 	
@@ -3379,7 +3234,7 @@ void LLViewerMediaTexture::addMediaToFace(LLFace* facep)
 		return ; //no need to add the face because the media is not in playing.
 	}
 
-	switchTexture(facep) ;
+	switchTexture(LLRender::DIFFUSE_MAP, facep) ;
 }
 	
 void LLViewerMediaTexture::removeMediaFromFace(LLFace* facep) 
@@ -3396,19 +3251,19 @@ void LLViewerMediaTexture::removeMediaFromFace(LLFace* facep)
 	}	
 
 	mIsPlaying = FALSE ; //set to remove the media from the face.
-	switchTexture(facep) ;
+	switchTexture(LLRender::DIFFUSE_MAP, facep) ;
 	mIsPlaying = TRUE ; //set the flag back.
 
-	if(getNumFaces() < 1) //no face referencing to this media
+	if(getTotalNumFaces() < 1) //no face referencing to this media
 	{
 		stopPlaying() ;
 	}
 }
 
 //virtual 
-void LLViewerMediaTexture::addFace(LLFace* facep) 
+void LLViewerMediaTexture::addFace(U32 ch, LLFace* facep) 
 {
-	LLViewerTexture::addFace(facep) ;
+	LLViewerTexture::addFace(ch, facep) ;
 
 	const LLTextureEntry* te = facep->getTextureEntry() ;
 	if(te && te->getID().notNull())
@@ -3435,9 +3290,9 @@ void LLViewerMediaTexture::addFace(LLFace* facep)
 }
 
 //virtual 
-void LLViewerMediaTexture::removeFace(LLFace* facep) 
+void LLViewerMediaTexture::removeFace(U32 ch, LLFace* facep) 
 {
-	LLViewerTexture::removeFace(facep) ;
+	LLViewerTexture::removeFace(ch, facep) ;
 
 	const LLTextureEntry* te = facep->getTextureEntry() ;
 	if(te && te->getID().notNull())
@@ -3455,24 +3310,35 @@ void LLViewerMediaTexture::removeFace(LLFace* facep)
 				}
 			}
 
-			//
-			//we have some trouble here: the texture of the face is changed.
-			//we need to find the former texture, and remove it from the list to avoid memory leaking.
-			if(!mNumFaces)
+			std::vector<const LLTextureEntry*> te_list;
+			
+			for (U32 ch = 0; ch < 3; ++ch)
 			{
-				mTextureList.clear() ;
-				return ;
+				//
+				//we have some trouble here: the texture of the face is changed.
+				//we need to find the former texture, and remove it from the list to avoid memory leaking.
+				
+				llassert(mNumFaces[ch] <= mFaceList[ch].size());
+
+				for(U32 j = 0 ; j < mNumFaces[ch] ; j++)
+				{
+					te_list.push_back(mFaceList[ch][j]->getTextureEntry());//all textures are in use.
+				}
 			}
-			S32 end = getNumFaces() ;
-			std::vector<const LLTextureEntry*> te_list(end) ;
-			S32 i = 0 ;			
-			for(U32 j = 0 ; j < mNumFaces ; j++)
+
+			if (te_list.empty())
 			{
-				te_list[i++] = mFaceList[j]->getTextureEntry() ;//all textures are in use.
+				mTextureList.clear() ;
+				return ;
 			}
+
+			S32 end = te_list.size();
+
 			for(std::list< LLPointer<LLViewerTexture> >::iterator iter = mTextureList.begin();
 				iter != mTextureList.end(); ++iter)
 			{
+				S32 i = 0;
+
 				for(i = 0 ; i < end ; i++)
 				{
 					if(te_list[i] && te_list[i]->getID() == (*iter)->getID())//the texture is in use.
@@ -3517,7 +3383,7 @@ void LLViewerMediaTexture::stopPlaying()
 	mIsPlaying = FALSE ;			
 }
 
-void LLViewerMediaTexture::switchTexture(LLFace* facep)
+void LLViewerMediaTexture::switchTexture(U32 ch, LLFace* facep)
 {
 	if(facep)
 	{
@@ -3533,7 +3399,7 @@ void LLViewerMediaTexture::switchTexture(LLFace* facep)
 
 		if(mIsPlaying) //old textures switch to the media texture
 		{
-			facep->switchTexture(this) ;
+			facep->switchTexture(ch, this) ;
 		}
 		else //switch to old textures.
 		{
@@ -3549,7 +3415,7 @@ void LLViewerMediaTexture::switchTexture(LLFace* facep)
 				{
 					tex = LLViewerFetchedTexture::sDefaultImagep ;
 				}
-				facep->switchTexture(tex) ;
+				facep->switchTexture(ch, tex) ;
 			}
 		}
 	}
@@ -3588,14 +3454,17 @@ void LLViewerMediaTexture::setPlaying(BOOL playing)
 
 		for(std::list< LLFace* >::iterator iter = mMediaFaceList.begin(); iter!= mMediaFaceList.end(); ++iter)
 		{
-			switchTexture(*iter) ;
+			switchTexture(LLRender::DIFFUSE_MAP, *iter) ;
 		}
 	}
 	else //stop playing this media
 	{
-		for(U32 i = mNumFaces ; i ; i--)
+		U32 ch = LLRender::DIFFUSE_MAP;
+		
+		llassert(mNumFaces[ch] <= mFaceList[ch].size());
+		for(U32 i = mNumFaces[ch] ; i ; i--)
 		{
-			switchTexture(mFaceList[i - 1]) ; //current face could be removed in this function.
+			switchTexture(ch, mFaceList[ch][i - 1]) ; //current face could be removed in this function.
 		}
 	}
 	return ;
@@ -3617,14 +3486,18 @@ F32 LLViewerMediaTexture::getMaxVirtualSize()
 
 	if(mIsPlaying) //media is playing
 	{
-		for(U32 i = 0 ; i < mNumFaces ; i++)
+		for (U32 ch = 0; ch < LLRender::NUM_TEXTURE_CHANNELS; ++ch)
 		{
-			LLFace* facep = mFaceList[i] ;
-			if(facep->getDrawable()->isRecentlyVisible())
+			llassert(mNumFaces[ch] <= mFaceList[ch].size());
+			for(U32 i = 0 ; i < mNumFaces[ch] ; i++)
 			{
-				addTextureStats(facep->getVirtualSize()) ;
-			}
-		}		
+				LLFace* facep = mFaceList[ch][i] ;
+				if(facep->getDrawable()->isRecentlyVisible())
+				{
+					addTextureStats(facep->getVirtualSize()) ;
+				}
+			}		
+		}
 	}
 	else //media is not in playing
 	{