Merge remote-tracking branch 'origin/main' into DRTVWR-600-maint-A

# Conflicts:
#	autobuild.xml
#	indra/cmake/CMakeLists.txt
#	indra/cmake/GoogleMock.cmake
#	indra/llaudio/llaudioengine_fmodstudio.cpp
#	indra/llaudio/llaudioengine_fmodstudio.h
#	indra/llaudio/lllistener_fmodstudio.cpp
#	indra/llaudio/lllistener_fmodstudio.h
#	indra/llaudio/llstreamingaudio_fmodstudio.cpp
#	indra/llaudio/llstreamingaudio_fmodstudio.h
#	indra/llcharacter/llmultigesture.cpp
#	indra/llcharacter/llmultigesture.h
#	indra/llimage/llimage.cpp
#	indra/llimage/llimagepng.cpp
#	indra/llimage/llimageworker.cpp
#	indra/llimage/tests/llimageworker_test.cpp
#	indra/llmessage/tests/llmockhttpclient.h
#	indra/llprimitive/llgltfmaterial.h
#	indra/llrender/llfontfreetype.cpp
#	indra/llui/llcombobox.cpp
#	indra/llui/llfolderview.cpp
#	indra/llui/llfolderviewmodel.h
#	indra/llui/lllineeditor.cpp
#	indra/llui/lllineeditor.h
#	indra/llui/lltextbase.cpp
#	indra/llui/lltextbase.h
#	indra/llui/lltexteditor.cpp
#	indra/llui/lltextvalidate.cpp
#	indra/llui/lltextvalidate.h
#	indra/llui/lluictrl.h
#	indra/llui/llview.cpp
#	indra/llwindow/llwindowmacosx.cpp
#	indra/newview/app_settings/settings.xml
#	indra/newview/llappearancemgr.cpp
#	indra/newview/llappearancemgr.h
#	indra/newview/llavatarpropertiesprocessor.cpp
#	indra/newview/llavatarpropertiesprocessor.h
#	indra/newview/llbreadcrumbview.cpp
#	indra/newview/llbreadcrumbview.h
#	indra/newview/llbreastmotion.cpp
#	indra/newview/llbreastmotion.h
#	indra/newview/llconversationmodel.h
#	indra/newview/lldensityctrl.cpp
#	indra/newview/lldensityctrl.h
#	indra/newview/llface.inl
#	indra/newview/llfloatereditsky.cpp
#	indra/newview/llfloatereditwater.cpp
#	indra/newview/llfloateremojipicker.h
#	indra/newview/llfloaterimsessiontab.cpp
#	indra/newview/llfloaterprofiletexture.cpp
#	indra/newview/llfloaterprofiletexture.h
#	indra/newview/llgesturemgr.cpp
#	indra/newview/llgesturemgr.h
#	indra/newview/llimpanel.cpp
#	indra/newview/llimpanel.h
#	indra/newview/llinventorybridge.cpp
#	indra/newview/llinventorybridge.h
#	indra/newview/llinventoryclipboard.cpp
#	indra/newview/llinventoryclipboard.h
#	indra/newview/llinventoryfunctions.cpp
#	indra/newview/llinventoryfunctions.h
#	indra/newview/llinventorygallery.cpp
#	indra/newview/lllistbrowser.cpp
#	indra/newview/lllistbrowser.h
#	indra/newview/llpanelobjectinventory.cpp
#	indra/newview/llpanelprofile.cpp
#	indra/newview/llpanelprofile.h
#	indra/newview/llpreviewgesture.cpp
#	indra/newview/llsavedsettingsglue.cpp
#	indra/newview/llsavedsettingsglue.h
#	indra/newview/lltooldraganddrop.cpp
#	indra/newview/llurllineeditorctrl.cpp
#	indra/newview/llvectorperfoptions.cpp
#	indra/newview/llvectorperfoptions.h
#	indra/newview/llviewerparceloverlay.cpp
#	indra/newview/llviewertexlayer.cpp
#	indra/newview/llviewertexturelist.cpp
#	indra/newview/macmain.h
#	indra/test/test.cpp

1 files changed, 3676 insertions, 3680 deletions

diff --git a/indra/newview/llviewerregion.cpp b/indra/newview/llviewerregion.cpp
index 233c1ab5fe..7633ec62df 100755
--- a/indra/newview/llviewerregion.cpp
+++ b/indra/newview/llviewerregion.cpp
@@ -1,3680 +1,3676 @@
-/** 
- * @file llviewerregion.cpp
- * @brief Implementation of the LLViewerRegion class.
- *
- * $LicenseInfo:firstyear=2000&license=viewerlgpl$
- * Second Life Viewer Source Code
- * Copyright (C) 2010-2013, Linden Research, Inc.
- * 
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation;
- * version 2.1 of the License only.
- * 
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- * 
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- * 
- * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
- * $/LicenseInfo$
- */
-
-#include "llviewerprecompiledheaders.h"
-
-#include "llviewerregion.h"
-
-// linden libraries
-#include "indra_constants.h"
-#include "llaisapi.h"
-#include "llavatarnamecache.h"		// name lookup cap url
-#include "llfloaterreg.h"
-#include "llmath.h"
-#include "llregionflags.h"
-#include "llregionhandle.h"
-#include "llsurface.h"
-#include "message.h"
-//#include "vmath.h"
-#include "v3math.h"
-#include "v4math.h"
-
-#include "llagent.h"
-#include "llagentcamera.h"
-#include "llappviewer.h"
-#include "llavatarrenderinfoaccountant.h"
-#include "llcallingcard.h"
-#include "llcommandhandler.h"
-#include "lldir.h"
-#include "lleventpoll.h"
-#include "llfloatergodtools.h"
-#include "llfloaterreporter.h"
-#include "llfloaterregioninfo.h"
-#include "llgltfmateriallist.h"
-#include "llhttpnode.h"
-#include "llregioninfomodel.h"
-#include "llsdutil.h"
-#include "llstartup.h"
-#include "lltrans.h"
-#include "llurldispatcher.h"
-#include "llviewerobjectlist.h"
-#include "llviewerparceloverlay.h"
-#include "llviewerstatsrecorder.h"
-#include "llvlmanager.h"
-#include "llvlcomposition.h"
-#include "llvoavatarself.h"
-#include "llvocache.h"
-#include "llworld.h"
-#include "llspatialpartition.h"
-#include "stringize.h"
-#include "llviewercontrol.h"
-#include "llsdserialize.h"
-#include "llfloaterperms.h"
-#include "llvieweroctree.h"
-#include "llviewerdisplay.h"
-#include "llviewerwindow.h"
-#include "llprogressview.h"
-#include "llcoros.h"
-#include "lleventcoro.h"
-#include "llcorehttputil.h"
-#include "llcallstack.h"
-#include "llsettingsdaycycle.h"
-
-#include <boost/regex.hpp>
-
-#ifdef LL_WINDOWS
-	#pragma warning(disable:4355)
-#endif
-
-// When we receive a base grant of capabilities that has a different number of 
-// capabilities than the original base grant received for the region, print 
-// out the two lists of capabilities for analysis.
-//#define DEBUG_CAPS_GRANTS
-
-// The server only keeps our pending agent info for 60 seconds.
-// We want to allow for seed cap retry, but its not useful after that 60 seconds.
-// Even though we gave up on login, keep trying for caps after we are logged in:
-const S32 MAX_CAP_REQUEST_ATTEMPTS = 30;
-const U32 DEFAULT_MAX_REGION_WIDE_PRIM_COUNT = 15000;
-
-bool LLViewerRegion::sVOCacheCullingEnabled = false;
-S32  LLViewerRegion::sLastCameraUpdated = 0;
-S32  LLViewerRegion::sNewObjectCreationThrottle = -1;
-LLViewerRegion::vocache_entry_map_t LLViewerRegion::sRegionCacheCleanup;
-
-typedef std::map<std::string, std::string> CapabilityMap;
-
-static void log_capabilities(const CapabilityMap &capmap);
-
-namespace
-{
-
-void newRegionEntry(LLViewerRegion& region)
-{
-    LL_INFOS("LLViewerRegion") << "Entering region [" << region.getName() << "]" << LL_ENDL;
-    gDebugInfo["CurrentRegion"] = region.getName();
-    LLAppViewer::instance()->writeDebugInfo();
-}
-
-} // anonymous namespace
-
-// support for secondlife:///app/region/{REGION} SLapps
-// N.B. this is defined to work exactly like the classic secondlife://{REGION}
-// However, the later syntax cannot support spaces in the region name because
-// spaces (and %20 chars) are illegal in the hostname of an http URL. Some
-// browsers let you get away with this, but some do not (such as Qt's Webkit).
-// Hence we introduced the newer secondlife:///app/region alternative.
-class LLRegionHandler : public LLCommandHandler
-{
-public:
-    // requests will be throttled from a non-trusted browser
-    LLRegionHandler() : LLCommandHandler("region", UNTRUSTED_THROTTLE) {}
-
-    bool handle(const LLSD& params, const LLSD& query_map, const std::string& grid, LLMediaCtrl* web)
-    {
-        // make sure that we at least have a region name
-        int num_params = params.size();
-        if (num_params < 1)
-        {
-            return false;
-        }
-           
-        // build a secondlife://{PLACE} SLurl from this SLapp
-        std::string url = "secondlife://";
-        if (!grid.empty())
-        {
-            url += grid + "/secondlife/";
-        }
-		boost::regex name_rx("[A-Za-z0-9()_%]+");
-		boost::regex coord_rx("[0-9]+");
-        for (int i = 0; i < num_params; i++)
-        {
-            if (i > 0)
-            {
-                url += "/";
-            }
-			if (!boost::regex_match(params[i].asString(), i > 0 ? coord_rx : name_rx))
-			{
-				return false;
-			}
-
-            url += params[i].asString();
-        }
-
-        // Process the SLapp as if it was a secondlife://{PLACE} SLurl
-        LLURLDispatcher::dispatch(url, LLCommandHandler::NAV_TYPE_CLICKED, web, true);
-        return true;
-    }
-       
-};
-LLRegionHandler gRegionHandler;
-
-
-class LLViewerRegionImpl 
-{
-public:
-	LLViewerRegionImpl(LLViewerRegion * region, LLHost const & host):   
-        mHost(host),
-        mCompositionp(NULL),
-        mEventPoll(NULL),
-        mSeedCapMaxAttempts(MAX_CAP_REQUEST_ATTEMPTS),
-        mSeedCapAttempts(0),
-        mHttpResponderID(0),
-        mLastCameraUpdate(0),
-        mLastCameraOrigin(),
-        mVOCachePartition(NULL),
-        mLandp(NULL)
-	{}
-
-	static void buildCapabilityNames(LLSD& capabilityNames);
-
-	// The surfaces and other layers
-	LLSurface*	mLandp;
-
-	// Region geometry data
-	LLVector3d	mOriginGlobal;	// Location of southwest corner of region (meters)
-	LLVector3d	mCenterGlobal;	// Location of center in world space (meters)
-	LLHost		mHost;
-
-	// The unique ID for this region.
-	LLUUID mRegionID;
-
-	// region/estate owner - usually null.
-	LLUUID mOwnerID;
-
-	// Network statistics for the region's circuit...
-	LLTimer mLastNetUpdate;
-
-	// Misc
-	LLVLComposition *mCompositionp;		// Composition layer for the surface
-
-	LLVOCacheEntry::vocache_entry_map_t	  mCacheMap; //all cached entries
-	LLVOCacheEntry::vocache_entry_set_t   mActiveSet; //all active entries;
-	LLVOCacheEntry::vocache_entry_set_t   mWaitingSet; //entries waiting for LLDrawable to be generated.	
-	std::set< LLPointer<LLViewerOctreeGroup> >      mVisibleGroups; //visible groupa
-	LLVOCachePartition*                   mVOCachePartition;
-	LLVOCacheEntry::vocache_entry_set_t   mVisibleEntries; //must-be-created visible entries wait for objects creation.	
-	LLVOCacheEntry::vocache_entry_priority_list_t mWaitingList; //transient list storing sorted visible entries waiting for object creation.
-	std::set<U32>                          mNonCacheableCreatedList; //list of local ids of all non-cacheable objects
-    LLVOCacheEntry::vocache_gltf_overrides_map_t mGLTFOverridesLLSD; // for materials
-
-	// time?
-	// LRU info?
-
-	// Cache ID is unique per-region, across renames, moving locations,
-	// etc.
-	LLUUID mCacheID;
-
-	CapabilityMap mCapabilities;
-	CapabilityMap mSecondCapabilitiesTracker; 
-
-	LLEventPoll* mEventPoll;
-
-	S32 mSeedCapMaxAttempts;
-	S32 mSeedCapAttempts;
-
-	S32 mHttpResponderID;
-
-	//spatial partitions for objects in this region
-	std::vector<LLViewerOctreePartition*> mObjectPartition;
-
-	LLVector3   mLastCameraOrigin;
-	U32         mLastCameraUpdate;
-
-    static void        requestBaseCapabilitiesCoro(U64 regionHandle);
-    static void        requestBaseCapabilitiesCompleteCoro(U64 regionHandle);
-    static void        requestSimulatorFeatureCoro(std::string url, U64 regionHandle);
-};
-
-void LLViewerRegionImpl::requestBaseCapabilitiesCoro(U64 regionHandle)
-{
-    LLCore::HttpRequest::policy_t httpPolicy(LLCore::HttpRequest::DEFAULT_POLICY_ID);
-    LLCoreHttpUtil::HttpCoroutineAdapter::ptr_t 
-        httpAdapter(new LLCoreHttpUtil::HttpCoroutineAdapter("BaseCapabilitiesRequest", httpPolicy));
-    LLCore::HttpRequest::ptr_t httpRequest(new LLCore::HttpRequest);
-
-    LLSD result;
-    LLViewerRegion *regionp = NULL;
-
-    // This loop is used for retrying a capabilities request.
-    do
-    {
-        if (STATE_WORLD_INIT > LLStartUp::getStartupState())
-        {
-            LL_INFOS("AppInit", "Capabilities") << "Aborting capabilities request, reason: returned to login screen" << LL_ENDL;
-            return;
-        }
-
-        if (!LLWorld::instanceExists())
-        {
-            LL_WARNS("AppInit", "Capabilities") << "Attempting to get capabilities, but world no longer exists!" << LL_ENDL;
-            return;
-        }
-
-        regionp = LLWorld::getInstance()->getRegionFromHandle(regionHandle);
-        if (!regionp) //region was removed
-        {
-            LL_WARNS("AppInit", "Capabilities") << "Attempting to get capabilities for region that no longer exists!" << LL_ENDL;
-            return; // this error condition is not recoverable.
-        }
-        LLViewerRegionImpl* impl = regionp->getRegionImplNC();
-        LL_DEBUGS("AppInit", "Capabilities") << "requesting seed caps for handle " << regionHandle 
-                                             << " name " << regionp->getName() << LL_ENDL;
-
-        std::string url = regionp->getCapability("Seed");
-        if (url.empty())
-        {
-            LL_WARNS("AppInit", "Capabilities") << "Failed to get seed capabilities, and can not determine url!" << LL_ENDL;
-            regionp->setCapabilitiesError();
-            return; // this error condition is not recoverable.
-        }
-
-        // record that we just entered a new region
-        newRegionEntry(*regionp);
-
-        if (impl->mSeedCapAttempts > impl->mSeedCapMaxAttempts)
-        {
-            // *TODO: Give a user pop-up about this error?
-            LL_WARNS("AppInit", "Capabilities") << "Failed to get seed capabilities from '" << url << "' after " << impl->mSeedCapAttempts << " attempts.  Giving up!" << LL_ENDL;
-            return;  // this error condition is not recoverable.
-        }
-
-        S32 id = ++(impl->mHttpResponderID);
-
-        LLSD capabilityNames = LLSD::emptyArray();
-        impl->buildCapabilityNames(capabilityNames);
-
-        LL_INFOS("AppInit", "Capabilities") << "Requesting seed from " << url 
-                                            << " region name " << regionp->getName()
-                                            << " region id " << regionp->getRegionID()
-                                            << " handle " << regionp->getHandle()
-                                            << " (attempt #" << impl->mSeedCapAttempts + 1 << ")" << LL_ENDL;
-		LL_DEBUGS("AppInit", "Capabilities") << "Capabilities requested: " << capabilityNames << LL_ENDL;
-
-        regionp = NULL;
-        impl = NULL;
-        result = httpAdapter->postAndSuspend(httpRequest, url, capabilityNames);
-
-        if (STATE_WORLD_INIT > LLStartUp::getStartupState())
-        {
-            LL_INFOS("AppInit", "Capabilities") << "Aborting capabilities request, reason: returned to login screen" << LL_ENDL;
-            return;
-        }
-
-        if (LLApp::isExiting() || gDisconnected)
-        {
-            LL_DEBUGS("AppInit", "Capabilities") << "Shutting down" << LL_ENDL;
-            return;
-        }
-
-        if (!LLWorld::instanceExists())
-        {
-            LL_WARNS("AppInit", "Capabilities") << "Received capabilities, but world no longer exists!" << LL_ENDL;
-            return;
-        }
-
-        regionp = LLWorld::getInstance()->getRegionFromHandle(regionHandle);
-        if (!regionp) //region was removed
-        {
-            LL_WARNS("AppInit", "Capabilities") << "Received capabilities for region that no longer exists!" << LL_ENDL;
-            return; // this error condition is not recoverable.
-        }
-
-        impl = regionp->getRegionImplNC();
-
-        ++(impl->mSeedCapAttempts);
-
-        if (!result.isMap() || result.has("error"))
-        {
-            LL_WARNS("AppInit", "Capabilities") << "Malformed response" << LL_ENDL;
-            // setup for retry.
-            continue;
-        }
-
-        LLSD httpResults = result["http_result"];
-        LLCore::HttpStatus status = LLCoreHttpUtil::HttpCoroutineAdapter::getStatusFromLLSD(httpResults);
-        if (!status)
-        {
-            LL_WARNS("AppInit", "Capabilities") << "HttpStatus error " << LL_ENDL;
-            // setup for retry.
-            continue;
-        }
-
-        // remove the http_result from the llsd
-        result.erase("http_result");
-
-        if (id != impl->mHttpResponderID) // region is no longer referring to this request
-        {
-            LL_WARNS("AppInit", "Capabilities") << "Received results for a stale capabilities request!" << LL_ENDL;
-            // setup for retry.
-            continue;
-        }
-
-        LLSD::map_const_iterator iter;
-        for (iter = result.beginMap(); iter != result.endMap(); ++iter)
-        {
-            regionp->setCapability(iter->first, iter->second);
-
-            LL_DEBUGS("AppInit", "Capabilities")
-                << "Capability '" << iter->first << "' is '" << iter->second << "'" << LL_ENDL;
-        }
-
-#if 0
-        log_capabilities(mCapabilities);
-#endif
-
-        LL_DEBUGS("AppInit", "Capabilities", "Teleport") << "received caps for handle " << regionHandle 
-														 << " region name " << regionp->getName() << LL_ENDL;
-        regionp->setCapabilitiesReceived(true);
-
-        break;
-    } 
-    while (true);
-
-    if (regionp && regionp->isCapabilityAvailable("ServerReleaseNotes") &&
-            regionp->getReleaseNotesRequested())
-    {   // *HACK: we're waiting for the ServerReleaseNotes
-        regionp->showReleaseNotes();
-    }
-}
-
-
-void LLViewerRegionImpl::requestBaseCapabilitiesCompleteCoro(U64 regionHandle)
-{
-    LLCore::HttpRequest::policy_t httpPolicy(LLCore::HttpRequest::DEFAULT_POLICY_ID);
-    LLCoreHttpUtil::HttpCoroutineAdapter::ptr_t
-        httpAdapter(new LLCoreHttpUtil::HttpCoroutineAdapter("BaseCapabilitiesRequest", httpPolicy));
-    LLCore::HttpRequest::ptr_t httpRequest(new LLCore::HttpRequest);
-
-    LLSD result;
-    LLViewerRegion *regionp = NULL;
-
-    // This loop is used for retrying a capabilities request.
-    do
-    {
-        LLWorld *world_inst = LLWorld::getInstance(); // Not a singleton!
-        if (!world_inst)
-        {
-            LL_WARNS("AppInit", "Capabilities") << "Attempting to get capabilities, but world no longer exists!" << LL_ENDL;
-            return;
-        }
-
-        regionp = world_inst->getRegionFromHandle(regionHandle);
-        if (!regionp) //region was removed
-        {
-            LL_WARNS("AppInit", "Capabilities") << "Attempting to get capabilities for region that no longer exists!" << LL_ENDL;
-            break; // this error condition is not recoverable.
-        }
-
-        std::string url = regionp->getCapabilityDebug("Seed");
-        if (url.empty())
-        {
-            LL_WARNS("AppInit", "Capabilities") << "Failed to get seed capabilities, and can not determine url!" << LL_ENDL;
-            if (regionp->getCapability("Seed").empty())
-            {
-                // initial attempt failed to get this cap as well
-                regionp->setCapabilitiesError();
-            }
-            break; // this error condition is not recoverable.
-        }
-
-        // record that we just entered a new region
-        newRegionEntry(*regionp);
-
-        LLSD capabilityNames = LLSD::emptyArray();
-        buildCapabilityNames(capabilityNames);
-
-        LL_INFOS("AppInit", "Capabilities") << "Requesting second Seed from " << url << " for region " << regionp->getRegionID() << LL_ENDL;
-
-        regionp = NULL;
-        world_inst = NULL;
-        result = httpAdapter->postAndSuspend(httpRequest, url, capabilityNames);
-
-        LLSD httpResults = result["http_result"];
-        LLCore::HttpStatus status = LLCoreHttpUtil::HttpCoroutineAdapter::getStatusFromLLSD(httpResults);
-        if (!status)
-        {
-            LL_WARNS("AppInit", "Capabilities") << "HttpStatus error " << LL_ENDL;
-            break;  // no retry
-        }
-
-        if (LLApp::isExiting() || gDisconnected)
-        {
-            break;
-        }
-
-        world_inst = LLWorld::getInstance();
-        if (!world_inst)
-        {
-            LL_WARNS("AppInit", "Capabilities") << "Received capabilities, but world no longer exists!" << LL_ENDL;
-            return;
-        }
-
-        regionp = world_inst->getRegionFromHandle(regionHandle);
-        if (!regionp) //region was removed
-        {
-            LL_WARNS("AppInit", "Capabilities") << "Received capabilities for region that no longer exists!" << LL_ENDL;
-            break; // this error condition is not recoverable.
-        }
-        LLViewerRegionImpl* impl = regionp->getRegionImplNC();
-
-        // remove the http_result from the llsd
-        result.erase("http_result");
-
-        LLSD::map_const_iterator iter;
-        for (iter = result.beginMap(); iter != result.endMap(); ++iter)
-        {
-            regionp->setCapabilityDebug(iter->first, iter->second);
-            //LL_INFOS()<<"BaseCapabilitiesCompleteTracker New Caps "<<iter->first<<" "<< iter->second<<LL_ENDL;
-        }
-
-#if 0
-        log_capabilities(impl->mCapabilities);
-#endif
-
-        if (impl->mCapabilities.size() != impl->mSecondCapabilitiesTracker.size())
-        {
-            LL_WARNS("AppInit", "Capabilities")
-                << "Sim sent duplicate base caps that differ in size from what we initially received - most likely content. "
-                << "mCapabilities == " << impl->mCapabilities.size()
-                << " mSecondCapabilitiesTracker == " << impl->mSecondCapabilitiesTracker.size()
-                << LL_ENDL;
-#ifdef DEBUG_CAPS_GRANTS
-            LL_WARNS("AppInit", "Capabilities")
-                << "Initial Base capabilities: " << LL_ENDL;
-
-            log_capabilities(impl->mCapabilities);
-
-            LL_WARNS("AppInit", "Capabilities")
-                << "Latest base capabilities: " << LL_ENDL;
-
-            log_capabilities(impl->mSecondCapabilitiesTracker);
-
-#endif
-
-            if (impl->mSecondCapabilitiesTracker.size() > impl->mCapabilities.size())
-            {
-                // *HACK Since we were granted more base capabilities in this grant request than the initial, replace
-                // the old with the new. This shouldn't happen i.e. we should always get the same capabilities from a
-                // sim. The simulator fix from SH-3895 should prevent it from happening, at least in the case of the
-                // inventory api capability grants.
-
-                // Need to clear a std::map before copying into it because old keys take precedence.
-                impl->mCapabilities.clear();
-                impl->mCapabilities = impl->mSecondCapabilitiesTracker;
-            }
-        }
-        else
-        {
-            LL_DEBUGS("CrossingCaps") << "Sim sent multiple base cap grants with matching sizes." << LL_ENDL;
-        }
-        impl->mSecondCapabilitiesTracker.clear();
-    } 
-    while (false);
-}
-
-void LLViewerRegionImpl::requestSimulatorFeatureCoro(std::string url, U64 regionHandle)
-{
-    LLCore::HttpRequest::policy_t httpPolicy(LLCore::HttpRequest::DEFAULT_POLICY_ID);
-    LLCoreHttpUtil::HttpCoroutineAdapter::ptr_t
-        httpAdapter(new LLCoreHttpUtil::HttpCoroutineAdapter("BaseCapabilitiesRequest", httpPolicy));
-    LLCore::HttpRequest::ptr_t httpRequest(new LLCore::HttpRequest);
-
-    LLViewerRegion *regionp = NULL;
-    S32 attemptNumber = 0;
-    // This loop is used for retrying a capabilities request.
-    do
-    {
-        ++attemptNumber;
-
-        if (attemptNumber > MAX_CAP_REQUEST_ATTEMPTS)
-        {
-            LL_WARNS("AppInit", "SimulatorFeatures") << "Retries count exceeded attempting to get Simulator feature from " 
-                << url << LL_ENDL;
-            break;
-        }
-
-        LLWorld *world_inst = LLWorld::getInstance(); // Not a singleton!
-        if (!world_inst)
-        {
-            LL_WARNS("AppInit", "Capabilities") << "Attempting to request Sim Feature, but world no longer exists!" << LL_ENDL;
-            return;
-        }
-
-        regionp = world_inst->getRegionFromHandle(regionHandle);
-        if (!regionp) //region was removed
-        {
-            LL_WARNS("AppInit", "SimulatorFeatures") << "Attempting to request Sim Feature for region that no longer exists!" << LL_ENDL;
-            break; // this error condition is not recoverable.
-        }
-
-        regionp = NULL;
-        world_inst = NULL;
-        LLSD result = httpAdapter->getAndSuspend(httpRequest, url);
-
-        LLSD httpResults = result["http_result"];
-        LLCore::HttpStatus status = LLCoreHttpUtil::HttpCoroutineAdapter::getStatusFromLLSD(httpResults);
-        if (!status)
-        {
-            LL_WARNS("AppInit", "SimulatorFeatures") << "HttpStatus error retrying" << LL_ENDL;
-            continue;  
-        }
-
-        if (LLApp::isExiting() || gDisconnected)
-        {
-            break;
-        }
-
-        // remove the http_result from the llsd
-        result.erase("http_result");
-
-        world_inst = LLWorld::getInstance();
-        if (!world_inst)
-        {
-            LL_WARNS("AppInit", "Capabilities") << "Attempting to request Sim Feature, but world no longer exists!" << LL_ENDL;
-            return;
-        }
-
-        regionp = world_inst->getRegionFromHandle(regionHandle);
-        if (!regionp) //region was removed
-        {
-            LL_WARNS("AppInit", "SimulatorFeatures") << "Attempting to set Sim Feature for region that no longer exists!" << LL_ENDL;
-            break; // this error condition is not recoverable.
-        }
-
-        regionp->setSimulatorFeatures(result);
-
-        break;
-    }
-    while (true);
-
-}
-
-LLViewerRegion::LLViewerRegion(const U64 &handle,
-							   const LLHost &host,
-							   const U32 grids_per_region_edge, 
-							   const U32 grids_per_patch_edge, 
-							   const F32 region_width_meters)
-:	mImpl(new LLViewerRegionImpl(this, host)),
-	mHandle(handle),
-	mTimeDilation(1.0f),
-	mName(""),
-	mZoning(""),
-	mIsEstateManager(false),
-	mRegionFlags( REGION_FLAGS_DEFAULT ),
-	mRegionProtocols( 0 ),
-	mSimAccess( SIM_ACCESS_MIN ),
-	mBillableFactor(1.0),
-	mMaxTasks(DEFAULT_MAX_REGION_WIDE_PRIM_COUNT),
-	mCentralBakeVersion(1),
-	mClassID(0),
-	mCPURatio(0),
-	mColoName("unknown"),
-	mProductSKU("unknown"),
-	mProductName("unknown"),
-	mViewerAssetUrl(""),
-	mCacheLoaded(false),
-	mCacheDirty(false),
-	mReleaseNotesRequested(false),
-	mCapabilitiesState(CAPABILITIES_STATE_INIT),
-	mSimulatorFeaturesReceived(false),
-	mBitsReceived(0.f),
-	mPacketsReceived(0.f),
-	mDead(false),
-	mLastVisitedEntry(NULL),
-	mInvisibilityCheckHistory(-1),
-	mPaused(false),
-	mRegionCacheHitCount(0),
-	mRegionCacheMissCount(0),
-    mInterestListMode(IL_MODE_DEFAULT)
-{
-	mWidth = region_width_meters;
-	mImpl->mOriginGlobal = from_region_handle(handle); 
-	updateRenderMatrix();
-
-	mImpl->mLandp = new LLSurface('l', NULL);
-
-	// Create the composition layer for the surface
-	mImpl->mCompositionp =
-		new LLVLComposition(mImpl->mLandp,
-							grids_per_region_edge,
-							region_width_meters / grids_per_region_edge);
-	mImpl->mCompositionp->setSurface(mImpl->mLandp);
-
-	// Create the surfaces
-	mImpl->mLandp->setRegion(this);
-	mImpl->mLandp->create(grids_per_region_edge,
-					grids_per_patch_edge,
-					mImpl->mOriginGlobal,
-					mWidth);
-
-	mParcelOverlay = new LLViewerParcelOverlay(this, region_width_meters);
-
-	setOriginGlobal(from_region_handle(handle));
-	calculateCenterGlobal();
-
-	// Create the object lists
-	initStats();
-
-	//create object partitions
-	//MUST MATCH declaration of eObjectPartitions
-	mImpl->mObjectPartition.push_back(new LLHUDPartition(this));		//PARTITION_HUD
-	mImpl->mObjectPartition.push_back(new LLTerrainPartition(this));	//PARTITION_TERRAIN
-	mImpl->mObjectPartition.push_back(new LLVoidWaterPartition(this));	//PARTITION_VOIDWATER
-	mImpl->mObjectPartition.push_back(new LLWaterPartition(this));		//PARTITION_WATER
-	mImpl->mObjectPartition.push_back(new LLTreePartition(this));		//PARTITION_TREE
-	mImpl->mObjectPartition.push_back(new LLParticlePartition(this));	//PARTITION_PARTICLE
-	mImpl->mObjectPartition.push_back(new LLGrassPartition(this));		//PARTITION_GRASS
-	mImpl->mObjectPartition.push_back(new LLVolumePartition(this));	//PARTITION_VOLUME
-	mImpl->mObjectPartition.push_back(new LLBridgePartition(this));	//PARTITION_BRIDGE
-	mImpl->mObjectPartition.push_back(new LLAvatarPartition(this));	//PARTITION_AVATAR
-	mImpl->mObjectPartition.push_back(new LLControlAVPartition(this));	//PARTITION_CONTROL_AV
-	mImpl->mObjectPartition.push_back(new LLHUDParticlePartition(this));//PARTITION_HUD_PARTICLE
-	mImpl->mObjectPartition.push_back(new LLVOCachePartition(this)); //PARTITION_VO_CACHE
-	mImpl->mObjectPartition.push_back(NULL);					//PARTITION_NONE
-	mImpl->mVOCachePartition = getVOCachePartition();
-
-	setCapabilitiesReceivedCallback(boost::bind(&LLAvatarRenderInfoAccountant::scanNewRegion, _1));
-}
-
-
-void LLViewerRegion::initStats()
-{
-	mImpl->mLastNetUpdate.reset();
-	mPacketsIn = 0;
-	mBitsIn = (U32Bits)0;
-	mLastBitsIn = (U32Bits)0;
-	mLastPacketsIn = 0;
-	mPacketsOut = 0;
-	mLastPacketsOut = 0;
-	mPacketsLost = 0;
-	mLastPacketsLost = 0;
-	mPingDelay = (U32Seconds)0;
-	mAlive = false;					// can become false if circuit disconnects
-}
-
-static LLTrace::BlockTimerStatHandle FTM_CLEANUP_REGION_OBJECTS("Cleanup Region Objects");
-static LLTrace::BlockTimerStatHandle FTM_SAVE_REGION_CACHE("Save Region Cache");
-
-LLViewerRegion::~LLViewerRegion() 
-{
-    LL_PROFILE_ZONE_SCOPED;
-	mDead = true;
-	mImpl->mActiveSet.clear();
-	mImpl->mVisibleEntries.clear();
-	mImpl->mVisibleGroups.clear();
-	mImpl->mWaitingSet.clear();
-
-	gVLManager.cleanupData(this);
-	// Can't do this on destruction, because the neighbor pointers might be invalid.
-	// This should be reference counted...
-	disconnectAllNeighbors();
-	LLViewerPartSim::getInstance()->cleanupRegion(this);
-
-    {
-        LL_RECORD_BLOCK_TIME(FTM_CLEANUP_REGION_OBJECTS);
-        gObjectList.killObjects(this);
-    }
-
-	delete mImpl->mCompositionp;
-	delete mParcelOverlay;
-	delete mImpl->mLandp;
-	delete mImpl->mEventPoll;
-#if 0
-	LLHTTPSender::clearSender(mImpl->mHost);
-#endif	
-	std::for_each(mImpl->mObjectPartition.begin(), mImpl->mObjectPartition.end(), DeletePointer());
-
-    {
-        LL_RECORD_BLOCK_TIME(FTM_SAVE_REGION_CACHE);
-        saveObjectCache();
-    }
-
-	delete mImpl;
-	mImpl = NULL;
-}
-
-/*virtual*/ 
-const LLHost&	LLViewerRegion::getHost() const				
-{ 
-	return mImpl->mHost; 
-}
-
-LLSurface & LLViewerRegion::getLand() const
-{
-	return *mImpl->mLandp;
-}
-
-const LLUUID& LLViewerRegion::getRegionID() const
-{
-	return mImpl->mRegionID;
-}
-
-void LLViewerRegion::setRegionID(const LLUUID& region_id)
-{
-	mImpl->mRegionID = region_id;
-}
-
-void LLViewerRegion::loadObjectCache()
-{
-	if (mCacheLoaded)
-	{
-		return;
-	}
-
-	// Presume success.  If it fails, we don't want to try again.
-	mCacheLoaded = true;
-
-	if(LLVOCache::instanceExists())
-	{
-        LLVOCache & vocache = LLVOCache::instance();
-		vocache.readFromCache(mHandle, mImpl->mCacheID, mImpl->mCacheMap);
-        vocache.readGenericExtrasFromCache(mHandle, mImpl->mCacheID, mImpl->mGLTFOverridesLLSD);
-
-		if (mImpl->mCacheMap.empty())
-		{
-			mCacheDirty = true;
-		}
-	}
-}
-
-
-void LLViewerRegion::saveObjectCache()
-{
-	if (!mCacheLoaded)
-	{
-		return;
-	}
-
-	if (mImpl->mCacheMap.empty())
-	{
-		return;
-	}
-
-	if(LLVOCache::instanceExists())
-	{
-		const F32 start_time_threshold = 600.0f; //seconds
-		bool removal_enabled = sVOCacheCullingEnabled && (mRegionTimer.getElapsedTimeF32() > start_time_threshold); //allow to remove invalid objects from object cache file.
-
-        LLVOCache & instance = LLVOCache::instance();
-
-        instance.writeToCache(mHandle, mImpl->mCacheID, mImpl->mCacheMap, mCacheDirty, removal_enabled);
-        instance.writeGenericExtrasToCache(mHandle, mImpl->mCacheID, mImpl->mGLTFOverridesLLSD, mCacheDirty, removal_enabled);
-		mCacheDirty = false;
-	}
-
-    if (LLAppViewer::instance()->isQuitting())
-    {
-        mImpl->mCacheMap.clear();
-    }
-    else
-    {
-        // Map of LLVOCacheEntry takes time to release, store map for cleanup on idle
-        sRegionCacheCleanup.insert(mImpl->mCacheMap.begin(), mImpl->mCacheMap.end());
-        mImpl->mCacheMap.clear();
-        // TODO - probably need to do the same for overrides cache
-    }
-}
-
-void LLViewerRegion::sendMessage()
-{
-	gMessageSystem->sendMessage(mImpl->mHost);
-}
-
-void LLViewerRegion::sendReliableMessage()
-{
-	gMessageSystem->sendReliable(mImpl->mHost);
-}
-
-void LLViewerRegion::setWaterHeight(F32 water_level)
-{
-	mImpl->mLandp->setWaterHeight(water_level);
-}
-
-F32 LLViewerRegion::getWaterHeight() const
-{
-	return mImpl->mLandp->getWaterHeight();
-}
-
-bool LLViewerRegion::isVoiceEnabled() const
-{
-	return getRegionFlag(REGION_FLAGS_ALLOW_VOICE);
-}
-
-void LLViewerRegion::setRegionFlags(U64 flags)
-{
-	mRegionFlags = flags;
-}
-
-
-void LLViewerRegion::setOriginGlobal(const LLVector3d &origin_global) 
-{ 
-	mImpl->mOriginGlobal = origin_global; 
-	updateRenderMatrix();
-	mImpl->mLandp->setOriginGlobal(origin_global);
-	mWind.setOriginGlobal(origin_global);
-	calculateCenterGlobal();
-}
-
-void LLViewerRegion::updateRenderMatrix()
-{
-	mRenderMatrix.setTranslation(getOriginAgent());
-}
-
-void LLViewerRegion::setTimeDilation(F32 time_dilation)
-{
-	mTimeDilation = time_dilation;
-}
-
-const LLVector3d & LLViewerRegion::getOriginGlobal() const
-{
-	return mImpl->mOriginGlobal;
-}
-
-LLVector3 LLViewerRegion::getOriginAgent() const
-{
-	return gAgent.getPosAgentFromGlobal(mImpl->mOriginGlobal);
-}
-
-const LLVector3d & LLViewerRegion::getCenterGlobal() const
-{
-	return mImpl->mCenterGlobal;
-}
-
-LLVector3 LLViewerRegion::getCenterAgent() const
-{
-	return gAgent.getPosAgentFromGlobal(mImpl->mCenterGlobal);
-}
-
-void LLViewerRegion::setOwner(const LLUUID& owner_id)
-{
-	mImpl->mOwnerID = owner_id;
-}
-
-const LLUUID& LLViewerRegion::getOwner() const
-{
-	return mImpl->mOwnerID;
-}
-
-void LLViewerRegion::setRegionNameAndZone	(const std::string& name_zone)
-{
-	std::string::size_type pipe_pos = name_zone.find('|');
-	S32 length   = name_zone.size();
-	if (pipe_pos != std::string::npos)
-	{
-		mName   = name_zone.substr(0, pipe_pos);
-		mZoning = name_zone.substr(pipe_pos+1, length-(pipe_pos+1));
-	}
-	else
-	{
-		mName   = name_zone;
-		mZoning = "";
-	}
-
-	LLStringUtil::stripNonprintable(mName);
-	LLStringUtil::stripNonprintable(mZoning);
-}
-
-bool LLViewerRegion::canManageEstate() const
-{
-	return gAgent.isGodlike()
-		|| isEstateManager()
-		|| gAgent.getID() == getOwner();
-}
-
-const std::string LLViewerRegion::getSimAccessString() const
-{
-	return accessToString(mSimAccess);
-}
-
-std::string LLViewerRegion::getLocalizedSimProductName() const
-{
-	std::string localized_spn;
-	return LLTrans::findString(localized_spn, mProductName) ? localized_spn : mProductName;
-}
-
-// static
-std::string LLViewerRegion::regionFlagsToString(U64 flags)
-{
-	std::string result;
-
-	if (flags & REGION_FLAGS_SANDBOX)
-	{
-		result += "Sandbox";
-	}
-
-	if (flags & REGION_FLAGS_ALLOW_DAMAGE)
-	{
-		result += " Not Safe";
-	}
-
-	return result;
-}
-
-// static
-std::string LLViewerRegion::accessToString(U8 sim_access)
-{
-	switch(sim_access)
-	{
-	case SIM_ACCESS_PG:
-		return LLTrans::getString("SIM_ACCESS_PG");
-
-	case SIM_ACCESS_MATURE:
-		return LLTrans::getString("SIM_ACCESS_MATURE");
-
-	case SIM_ACCESS_ADULT:
-		return LLTrans::getString("SIM_ACCESS_ADULT");
-
-	case SIM_ACCESS_DOWN:
-		return LLTrans::getString("SIM_ACCESS_DOWN");
-
-	case SIM_ACCESS_MIN:
-	default:
-		return LLTrans::getString("SIM_ACCESS_MIN");
-	}
-}
-
-// static
-std::string LLViewerRegion::getAccessIcon(U8 sim_access)
-{
-	switch(sim_access)
-	{
-	case SIM_ACCESS_MATURE:
-		return "Parcel_M_Dark";
-
-	case SIM_ACCESS_ADULT:
-		return "Parcel_R_Light";
-
-	case SIM_ACCESS_PG:
-		return "Parcel_PG_Light";
-
-	case SIM_ACCESS_MIN:
-	default:
-		return "";
-	}
-}
-
-// static
-std::string LLViewerRegion::accessToShortString(U8 sim_access)
-{
-	switch(sim_access)		/* Flawfinder: ignore */
-	{
-	case SIM_ACCESS_PG:
-		return "PG";
-
-	case SIM_ACCESS_MATURE:
-		return "M";
-
-	case SIM_ACCESS_ADULT:
-		return "A";
-
-	case SIM_ACCESS_MIN:
-	default:
-		return "U";
-	}
-}
-
-// static
-U8 LLViewerRegion::shortStringToAccess(const std::string &sim_access)
-{
-	U8 accessValue;
-
-	if (LLStringUtil::compareStrings(sim_access, "PG") == 0)
-	{
-		accessValue = SIM_ACCESS_PG;
-	}
-	else if (LLStringUtil::compareStrings(sim_access, "M") == 0)
-	{
-		accessValue = SIM_ACCESS_MATURE;
-	}
-	else if (LLStringUtil::compareStrings(sim_access, "A") == 0)
-	{
-		accessValue = SIM_ACCESS_ADULT;
-	}
-	else
-	{
-		accessValue = SIM_ACCESS_MIN;
-	}
-
-	return accessValue;
-}
-
-// static
-void LLViewerRegion::processRegionInfo(LLMessageSystem* msg, void**)
-{
-	// send it to 'observers'
-	// *TODO: switch the floaters to using LLRegionInfoModel
-	LL_INFOS() << "Processing region info" << LL_ENDL;
-	LLRegionInfoModel::instance().update(msg);
-	LLFloaterGodTools::processRegionInfo(msg);
-	LLFloaterRegionInfo::processRegionInfo(msg);
-}
-
-void LLViewerRegion::setCacheID(const LLUUID& id)
-{
-	mImpl->mCacheID = id;
-}
-
-S32 LLViewerRegion::renderPropertyLines()
-{
-	if (mParcelOverlay)
-	{
-		return mParcelOverlay->renderPropertyLines();
-	}
-	else
-	{
-		return 0;
-	}
-}
-
-void LLViewerRegion::renderPropertyLinesOnMinimap(F32 scale_pixels_per_meter, const F32 *parcel_outline_color)
-{
-    if (mParcelOverlay)
-    {
-        mParcelOverlay->renderPropertyLinesOnMinimap(scale_pixels_per_meter, parcel_outline_color);
-    }
-}
-
-
-// This gets called when the height field changes.
-void LLViewerRegion::dirtyHeights()
-{
-	// Property lines need to be reconstructed when the land changes.
-	if (mParcelOverlay)
-	{
-		mParcelOverlay->setDirty();
-	}
-}
-
-//physically delete the cache entry
-void LLViewerRegion::killCacheEntry(LLVOCacheEntry* entry, bool for_rendering)
-{	
-	if(!entry || !entry->isValid())
-	{
-		return;
-	}
-
-	if(for_rendering && !entry->isState(LLVOCacheEntry::ACTIVE))
-	{
-		addNewObject(entry); //force to add to rendering pipeline
-	}
-
-	//remove from active list and waiting list
-	if(entry->isState(LLVOCacheEntry::ACTIVE))
-	{
-		mImpl->mActiveSet.erase(entry);
-	}
-	else
-	{
-		if(entry->isState(LLVOCacheEntry::WAITING))
-		{
-			mImpl->mWaitingSet.erase(entry);
-		}
-		
-		//remove from mVOCachePartition
-		removeFromVOCacheTree(entry);
-	}
-
-	//remove from the forced visible list
-	mImpl->mVisibleEntries.erase(entry);
-
-	//disconnect from parent if it is a child
-	if(entry->getParentID() > 0)
-	{
-		LLVOCacheEntry* parent = getCacheEntry(entry->getParentID());
-		if(parent)
-		{
-			parent->removeChild(entry);
-		}
-	}
-	else if(entry->getNumOfChildren() > 0)//remove children from cache if has any
-	{
-		LLVOCacheEntry* child = entry->getChild();
-		while(child != NULL)
-		{
-			killCacheEntry(child, for_rendering);
-			child = entry->getChild();
-		}
-	}
-
-	//will remove it from the object cache, real deletion
-	entry->setState(LLVOCacheEntry::INACTIVE);
-	entry->removeOctreeEntry();
-	entry->setValid(false);
-
-	// TODO kill extras/material overrides cache too
-}
-
-//physically delete the cache entry	
-void LLViewerRegion::killCacheEntry(U32 local_id) 
-{
-	killCacheEntry(getCacheEntry(local_id));
-}
-
-U32 LLViewerRegion::getNumOfActiveCachedObjects() const
-{
-	return  mImpl->mActiveSet.size();
-}
-
-void LLViewerRegion::addActiveCacheEntry(LLVOCacheEntry* entry)
-{
-	if(!entry || mDead)
-	{
-		return;
-	}
-	if(entry->isState(LLVOCacheEntry::ACTIVE))
-	{
-		return; //already inserted.
-	}
-
-	if(entry->isState(LLVOCacheEntry::WAITING))
-	{
-		mImpl->mWaitingSet.erase(entry);
-	}
-
-	entry->setState(LLVOCacheEntry::ACTIVE);
-	entry->setVisible();
-
-	llassert(entry->getEntry()->hasDrawable());
-	mImpl->mActiveSet.insert(entry);
-}
-
-void LLViewerRegion::removeActiveCacheEntry(LLVOCacheEntry* entry, LLDrawable* drawablep)
-{
-	if(mDead || !entry || !entry->isValid())
-	{
-		return;
-	}
-	if(!entry->isState(LLVOCacheEntry::ACTIVE))
-	{
-		return; //not an active entry.
-	}
-
-	//shift to the local regional space from agent space
-	if(drawablep != NULL && drawablep->getVObj().notNull())
-	{
-		const LLVector3& pos = drawablep->getVObj()->getPositionRegion();
-		LLVector4a shift;
-		shift.load3(pos.mV);
-		shift.sub(entry->getPositionGroup());
-		entry->shift(shift);
-	}
-
-	if(entry->getParentID() > 0) //is a child
-	{
-		LLVOCacheEntry* parent = getCacheEntry(entry->getParentID());
-		if(parent)
-		{
-			parent->addChild(entry);
-		}
-		else //parent not in cache.
-		{
-			//this happens only when parent is not cacheable.
-			mOrphanMap[entry->getParentID()].push_back(entry->getLocalID());
-		}
-	}
-	else //insert to vo cache tree.
-	{		
-		entry->updateParentBoundingInfo();
-		entry->saveBoundingSphere();
-		addToVOCacheTree(entry);
-	}
-
-	mImpl->mVisibleEntries.erase(entry);
-	mImpl->mActiveSet.erase(entry);
-	mImpl->mWaitingSet.erase(entry);
-	entry->setState(LLVOCacheEntry::INACTIVE);
-}
-
-bool LLViewerRegion::addVisibleGroup(LLViewerOctreeGroup* group)
-{
-	if(mDead || group->isEmpty())
-	{
-		return false;
-	}
-	
-	mImpl->mVisibleGroups.insert(group);
-
-	return true;
-}
-
-U32 LLViewerRegion::getNumOfVisibleGroups() const
-{
-	return mImpl ? mImpl->mVisibleGroups.size() : 0;
-}
-
-void LLViewerRegion::updateReflectionProbes()
-{
-    LL_PROFILE_ZONE_SCOPED_CATEGORY_DISPLAY;
-    const F32 probe_spacing = 32.f;
-    const F32 probe_radius = sqrtf((probe_spacing * 0.5f) * (probe_spacing * 0.5f) * 3.f);
-    const F32 hover_height = 2.f;
-
-    F32 start = probe_spacing * 0.5f;
-
-    U32 grid_width = REGION_WIDTH_METERS / probe_spacing;
-
-    mReflectionMaps.resize(grid_width * grid_width);
-
-    F32 water_height = getWaterHeight();
-    LLVector3 origin = getOriginAgent();
-
-    for (U32 i = 0; i < grid_width; ++i)
-    {
-        F32 x = i * probe_spacing + start;
-        for (U32 j = 0; j < grid_width; ++j)
-        {
-            F32 y = j * probe_spacing + start;
-
-            U32 idx = i * grid_width + j;
-
-            if (mReflectionMaps[idx].isNull())
-            {
-                mReflectionMaps[idx] = gPipeline.mReflectionMapManager.addProbe();
-            }
-
-            LLVector3 probe_origin = LLVector3(x, y, llmax(water_height, mImpl->mLandp->resolveHeightRegion(x, y)));
-            probe_origin.mV[2] += hover_height;
-            probe_origin += origin;
-
-            mReflectionMaps[idx]->mOrigin.load3(probe_origin.mV);
-            mReflectionMaps[idx]->mRadius = probe_radius;
-        }
-    }
-}
-
-void LLViewerRegion::addToVOCacheTree(LLVOCacheEntry* entry)
-{
-	if(!sVOCacheCullingEnabled)
-	{
-		return;
-	}
-
-	if(mDead || !entry || !entry->getEntry() || !entry->isValid())
-	{
-		return;
-	}
-	if(entry->getParentID() > 0)
-	{
-		return; //no child prim in cache octree.
-	}
-
-	if(entry->hasState(LLVOCacheEntry::IN_VO_TREE))
-	{
-		return; //already in the tree.
-	}	
-
-	llassert_always(!entry->getGroup()); //not in octree.
-	llassert(!entry->getEntry()->hasDrawable()); //not have drawables
-
-	if(mImpl->mVOCachePartition->addEntry(entry->getEntry()))
-	{
-		entry->setState(LLVOCacheEntry::IN_VO_TREE);
-	}
-}
-
-void LLViewerRegion::removeFromVOCacheTree(LLVOCacheEntry* entry)
-{
-	if(mDead || !entry || !entry->getEntry())
-	{
-		return;
-	}
-	
-	if(!entry->hasState(LLVOCacheEntry::IN_VO_TREE))
-	{
-		return; //not in the tree.
-	}
-	entry->clearState(LLVOCacheEntry::IN_VO_TREE);
-
-	mImpl->mVOCachePartition->removeEntry(entry->getEntry());	
-}
-
-//add child objects as visible entries
-void LLViewerRegion::addVisibleChildCacheEntry(LLVOCacheEntry* parent, LLVOCacheEntry* child)
-{
-	if(mDead)
-	{
-		return;
-	}
-
-	if(parent && (!parent->isValid() || !parent->isState(LLVOCacheEntry::ACTIVE)))
-	{
-		return; //parent must be valid and in rendering pipeline
-	}
-
-	if(child && (!child->getEntry() || !child->isValid() || !child->isState(LLVOCacheEntry::INACTIVE)))
-	{
-		return; //child must be valid and not in the rendering pipeline
-	}
-
-	if(child)
-	{
-		child->setState(LLVOCacheEntry::IN_QUEUE);
-		mImpl->mVisibleEntries.insert(child);
-	}	
-	else if(parent && parent->getNumOfChildren() > 0) //add all children
-	{
-		child = parent->getChild();
-		while(child != NULL)
-		{
-			addVisibleChildCacheEntry(NULL, child);
-			child = parent->getChild();
-		}
-	}
-}
-
-void LLViewerRegion::updateVisibleEntries(F32 max_time)
-{
-	if(mDead)
-	{
-		return;
-	}
-
-	if(mImpl->mVisibleGroups.empty() && mImpl->mVisibleEntries.empty())
-	{
-		return;
-	}
-
-	if(!sNewObjectCreationThrottle)
-	{
-		return;
-	}
-
-	const F32 LARGE_SCENE_CONTRIBUTION = 1000.f; //a large number to force to load the object.
-	const LLVector3 camera_origin = LLViewerCamera::getInstance()->getOrigin();
-	const U32 cur_frame = LLViewerOctreeEntryData::getCurrentFrame();
-	bool needs_update = ((cur_frame - mImpl->mLastCameraUpdate) > 5) && ((camera_origin - mImpl->mLastCameraOrigin).lengthSquared() > 10.f);	
-	U32 last_update = mImpl->mLastCameraUpdate;
-	LLVector4a local_origin;
-	local_origin.load3((camera_origin - getOriginAgent()).mV);
-
-	//process visible entries
-	for(LLVOCacheEntry::vocache_entry_set_t::iterator iter = mImpl->mVisibleEntries.begin(); iter != mImpl->mVisibleEntries.end();)
-	{
-		LLVOCacheEntry* vo_entry = *iter;
-		
-		if(vo_entry->isValid() && vo_entry->getState() < LLVOCacheEntry::WAITING)
-		{
-			//set a large number to force to load this object.
-			vo_entry->setSceneContribution(LARGE_SCENE_CONTRIBUTION);
-			
-			mImpl->mWaitingList.insert(vo_entry);
-			++iter;
-		}
-		else
-		{
-			LLVOCacheEntry::vocache_entry_set_t::iterator next_iter = iter;
-			++next_iter;
-			mImpl->mVisibleEntries.erase(iter);
-			iter = next_iter;
-		}
-	}
-
-	//
-	//process visible groups
-	//
-	//object projected area threshold
-	F32 projection_threshold = LLVOCacheEntry::getSquaredPixelThreshold(mImpl->mVOCachePartition->isFrontCull());
-	F32 dist_threshold = mImpl->mVOCachePartition->isFrontCull() ? gAgentCamera.mDrawDistance : LLVOCacheEntry::sRearFarRadius;
-	
-	std::set< LLPointer<LLViewerOctreeGroup> >::iterator group_iter = mImpl->mVisibleGroups.begin();
-	for(; group_iter != mImpl->mVisibleGroups.end(); ++group_iter)
-	{
-		LLPointer<LLViewerOctreeGroup> group = *group_iter;
-		if(group->getNumRefs() < 3 || //group to be deleted
-			!group->getOctreeNode() || group->isEmpty()) //group empty
-        {
-			continue;
-		}
-
-		for (LLViewerOctreeGroup::element_iter i = group->getDataBegin(); i != group->getDataEnd(); ++i)
-		{
-			if((*i)->hasVOCacheEntry())
-			{
-				LLVOCacheEntry* vo_entry = (LLVOCacheEntry*)(*i)->getVOCacheEntry();
-
-				if(vo_entry->getParentID() > 0) //is a child
-				{
-					//child visibility depends on its parent.
-					continue;
-				}
-				if(!vo_entry->isValid())
-				{
-					continue; //skip invalid entry.
-				}
-
-				vo_entry->calcSceneContribution(local_origin, needs_update, last_update, dist_threshold);
-				if(vo_entry->getSceneContribution() > projection_threshold)
-				{
-					mImpl->mWaitingList.insert(vo_entry);			
-				}
-			}
-		}
-	}
-
-	if(needs_update)
-	{
-		mImpl->mLastCameraOrigin = camera_origin;
-		mImpl->mLastCameraUpdate = cur_frame;
-	}
-
-	return;
-}
-
-void LLViewerRegion::createVisibleObjects(F32 max_time)
-{
-	if(mDead)
-	{
-		return;
-	}
-	if(mImpl->mWaitingList.empty())
-	{
-		mImpl->mVOCachePartition->setCullHistory(false);
-		return;
-	}	
-	
-	S32 throttle = sNewObjectCreationThrottle;
-	bool has_new_obj = false;
-	LLTimer update_timer;	
-	for(LLVOCacheEntry::vocache_entry_priority_list_t::iterator iter = mImpl->mWaitingList.begin();
-		iter != mImpl->mWaitingList.end(); ++iter)
-	{
-		LLVOCacheEntry* vo_entry = *iter;		
-
-		if(vo_entry->getState() < LLVOCacheEntry::WAITING)
-		{
-			addNewObject(vo_entry);
-			has_new_obj = true;
-			if(throttle > 0 && !(--throttle) && update_timer.getElapsedTimeF32() > max_time)
-			{
-				break;
-			}
-		}
-	}	
-
-	mImpl->mVOCachePartition->setCullHistory(has_new_obj);
-
-	return;
-}
-
-void LLViewerRegion::clearCachedVisibleObjects()
-{
-	mImpl->mWaitingList.clear();
-	mImpl->mVisibleGroups.clear();
-
-	//reset all occluders
-	mImpl->mVOCachePartition->resetOccluders();
-	mPaused = true;
-
-	//clean visible entries
-	for(LLVOCacheEntry::vocache_entry_set_t::iterator iter = mImpl->mVisibleEntries.begin(); iter != mImpl->mVisibleEntries.end();)
-	{
-		LLVOCacheEntry* entry = *iter;
-		LLVOCacheEntry* parent = getCacheEntry(entry->getParentID());
-
-		if(!entry->getParentID() || parent) //no child or parent is cache-able
-		{
-			if(parent) //has a cache-able parent
-			{
-				parent->addChild(entry);
-			}
-
-			LLVOCacheEntry::vocache_entry_set_t::iterator next_iter = iter;
-			++next_iter;
-			mImpl->mVisibleEntries.erase(iter);
-			iter = next_iter;
-		}
-		else //parent is not cache-able, leave it.
-		{
-			++iter;
-		}
-	}
-
-	//remove all visible entries.
-	mLastVisitedEntry = NULL;
-	std::vector<LLDrawable*> delete_list;
-	for(LLVOCacheEntry::vocache_entry_set_t::iterator iter = mImpl->mActiveSet.begin();
-		iter != mImpl->mActiveSet.end(); ++iter)
-	{
-        LLVOCacheEntry* vo_entry = *iter;
-        if (!vo_entry || !vo_entry->getEntry())
-        {
-            continue;
-        }
-        LLDrawable* drawablep = (LLDrawable*)vo_entry->getEntry()->getDrawable();
-	
-		if(drawablep && !drawablep->getParent())
-		{
-			delete_list.push_back(drawablep);
-		}
-	}
-
-	if(!delete_list.empty())
-	{
-		for(S32 i = 0; i < delete_list.size(); i++)
-		{
-			gObjectList.killObject(delete_list[i]->getVObj());
-		}
-		delete_list.clear();
-	}
-
-	return;
-}
-
-//perform some necessary but very light updates.
-//to replace the function idleUpdate(...) in case there is no enough time.
-void LLViewerRegion::lightIdleUpdate()
-{
-	if(!sVOCacheCullingEnabled)
-	{
-		return;
-	}
-	if(mImpl->mCacheMap.empty())
-	{
-		return;
-	}
-
-	//reset all occluders
-	mImpl->mVOCachePartition->resetOccluders();	
-}
-
-void LLViewerRegion::idleUpdate(F32 max_update_time)
-{	
-    LL_PROFILE_ZONE_SCOPED;
-	LLTimer update_timer;
-	F32 max_time;
-
-	mLastUpdate = LLViewerOctreeEntryData::getCurrentFrame();
-
-	mImpl->mLandp->idleUpdate(max_update_time);
-	
-	if (mParcelOverlay)
-	{
-		// Hopefully not a significant time sink...
-		mParcelOverlay->idleUpdate();
-	}
-
-	if(!sVOCacheCullingEnabled)
-	{
-		return;
-	}
-	if(mImpl->mCacheMap.empty())
-	{
-		return;
-	}	
-	if(mPaused)
-	{
-		mPaused = false; //unpause.
-	}
-
-	LLViewerCamera::eCameraID old_camera_id = LLViewerCamera::sCurCameraID;
-	LLViewerCamera::sCurCameraID = LLViewerCamera::CAMERA_WORLD;
-
-	//reset all occluders
-	mImpl->mVOCachePartition->resetOccluders();	
-
-	max_time = max_update_time - update_timer.getElapsedTimeF32();	
-
-	//kill invisible objects
-	killInvisibleObjects(max_time * 0.4f);	
-	max_time = max_update_time - update_timer.getElapsedTimeF32();	
-
-	updateVisibleEntries(max_time);
-	max_time = max_update_time - update_timer.getElapsedTimeF32();	
-
-	createVisibleObjects(max_time);
-
-	mImpl->mWaitingList.clear();
-	mImpl->mVisibleGroups.clear();
-
-	LLViewerCamera::sCurCameraID = old_camera_id;
-	return;
-}
-
-// static
-void LLViewerRegion::idleCleanup(F32 max_update_time)
-{
-    LLTimer update_timer;
-    while (!sRegionCacheCleanup.empty() && (max_update_time - update_timer.getElapsedTimeF32() > 0))
-    {
-        sRegionCacheCleanup.erase(sRegionCacheCleanup.begin());
-    }
-}
-
-//update the throttling number for new object creation
-void LLViewerRegion::calcNewObjectCreationThrottle()
-{
-	static LLCachedControl<S32> new_object_creation_throttle(gSavedSettings,"NewObjectCreationThrottle");
-	static LLCachedControl<F32> throttle_delay_time(gSavedSettings,"NewObjectCreationThrottleDelayTime");
-	static LLFrameTimer timer;
-
-	//
-	//sNewObjectCreationThrottle =
-	//-2: throttle is disabled because either the screen is showing progress view, or immediate after the screen is not black
-	//-1: throttle is disabled by the debug setting
-	//0:  no new object creation is allowed
-	//>0: valid throttling number
-	//
-
-	if(gViewerWindow->getProgressView()->getVisible() && throttle_delay_time > 0.f)
-	{
-		sNewObjectCreationThrottle = -2; //cancel the throttling
-		timer.reset();
-	}	
-	else if(sNewObjectCreationThrottle < -1) //just recoved from the login/teleport screen
-	{
-		if(timer.getElapsedTimeF32() > throttle_delay_time) //wait for throttle_delay_time to reset the throttle
-		{
-			sNewObjectCreationThrottle = new_object_creation_throttle; //reset
-			if(sNewObjectCreationThrottle < -1)
-			{
-				sNewObjectCreationThrottle = -1;
-			}
-		}
-	}
-
-	//update some LLVOCacheEntry debug setting factors.
-	LLVOCacheEntry::updateDebugSettings();
-}
-
-bool LLViewerRegion::isViewerCameraStatic()
-{
-	return sLastCameraUpdated < LLViewerOctreeEntryData::getCurrentFrame();
-}
-
-void LLViewerRegion::killInvisibleObjects(F32 max_time)
-{
-#if 1 // TODO: kill this.  This is ill-conceived, objects that aren't in the camera frustum should not be deleted from memory.
-        // because of this, every time you turn around the simulator sends a swarm of full object update messages from cache
-    // probe misses and objects have to be reloaded from scratch.  From some reason, disabling this causes holes to 
-    // appear in the scene when flying back and forth between regions
-	if(!sVOCacheCullingEnabled)
-	{
-		return;
-	}
-	if(mImpl->mActiveSet.empty())
-	{
-		return;
-	}
-	if(sNewObjectCreationThrottle < 0)
-	{
-		return;
-	}
-
-	LLTimer update_timer;
-	LLVector4a camera_origin;
-	camera_origin.load3(LLViewerCamera::getInstance()->getOrigin().mV);
-	LLVector4a local_origin;
-	local_origin.load3((LLViewerCamera::getInstance()->getOrigin() - getOriginAgent()).mV);
-	F32 back_threshold = LLVOCacheEntry::sRearFarRadius;
-	
-	size_t max_update = 64; 
-	if(!mInvisibilityCheckHistory && isViewerCameraStatic())
-	{
-		//history is clean, reduce number of checking
-		max_update /= 2;
-	}
-	
-	std::vector<LLDrawable*> delete_list;
-	S32 update_counter = llmin(max_update, mImpl->mActiveSet.size());
-	LLVOCacheEntry::vocache_entry_set_t::iterator iter = mImpl->mActiveSet.upper_bound(mLastVisitedEntry);		
-
-	for(; update_counter > 0; --update_counter, ++iter)
-	{	
-		if(iter == mImpl->mActiveSet.end())
-		{
-			iter = mImpl->mActiveSet.begin();
-		}
-		if((*iter)->getParentID() > 0)
-		{
-			continue; //skip child objects, they are removed with their parent.
-		}
-
-		LLVOCacheEntry* vo_entry = *iter;
-		if(!vo_entry->isAnyVisible(camera_origin, local_origin, back_threshold) && vo_entry->mLastCameraUpdated < sLastCameraUpdated)
-		{
-			killObject(vo_entry, delete_list);
-		}
-
-		if(max_time < update_timer.getElapsedTimeF32()) //time out
-		{
-			break;
-		}
-	}
-
-	if(iter == mImpl->mActiveSet.end())
-	{
-		mLastVisitedEntry = NULL;
-	}
-	else
-	{
-		mLastVisitedEntry = *iter;
-	}
-
-	mInvisibilityCheckHistory <<= 1;
-	if(!delete_list.empty())
-	{
-		mInvisibilityCheckHistory |= 1;
-		S32 count = delete_list.size();
-		for(S32 i = 0; i < count; i++)
-		{
-			gObjectList.killObject(delete_list[i]->getVObj());
-		}
-		delete_list.clear();
-	}
-
-	return;
-#endif
-}
-
-void LLViewerRegion::killObject(LLVOCacheEntry* entry, std::vector<LLDrawable*>& delete_list)
-{
-	//kill the object.
-	LLDrawable* drawablep = (LLDrawable*)entry->getEntry()->getDrawable();
-	llassert(drawablep);
-	llassert(drawablep->getRegion() == this);
-
-	if(drawablep && !drawablep->getParent())
-	{
-		LLViewerObject* v_obj = drawablep->getVObj();
-		if (v_obj->isSelected()
-			|| (v_obj->flagAnimSource() && isAgentAvatarValid() && gAgentAvatarp->hasMotionFromSource(v_obj->getID())))
-		{
-			// do not remove objects user is interacting with
-			((LLViewerOctreeEntryData*)drawablep)->setVisible();
-			return;
-		}
-		LLViewerObject::const_child_list_t& child_list = v_obj->getChildren();
-		for (LLViewerObject::child_list_t::const_iterator iter = child_list.begin();
-			iter != child_list.end(); iter++)
-		{
-			LLViewerObject* child = *iter;
-			if(child->mDrawable)
-			{
-				if( !child->mDrawable->getEntry()
-					|| !child->mDrawable->getEntry()->hasVOCacheEntry()
-					|| child->isSelected()
-					|| (child->flagAnimSource() && isAgentAvatarValid() && gAgentAvatarp->hasMotionFromSource(child->getID())))
-				{
-					//do not remove parent if any of its children non-cacheable, animating or selected
-					//especially for the case that an avatar sits on a cache-able object
-					((LLViewerOctreeEntryData*)drawablep)->setVisible();
-					return;
-				}
-
-				LLOcclusionCullingGroup* group = (LLOcclusionCullingGroup*)child->mDrawable->getGroup();
-				if(group && group->isAnyRecentlyVisible())
-				{
-					//set the parent visible if any of its children visible.
-					((LLViewerOctreeEntryData*)drawablep)->setVisible();
-					return;
-				}
-			}
-		}
-		delete_list.push_back(drawablep);				
-	}				
-}
-
-LLViewerObject* LLViewerRegion::addNewObject(LLVOCacheEntry* entry)
-{
-	if(!entry || !entry->getEntry())
-	{
-		if(entry)
-		{
-			mImpl->mVisibleEntries.erase(entry);
-			entry->setState(LLVOCacheEntry::INACTIVE);
-		}
-		return NULL;
-	}
-
-	LLViewerObject* obj = NULL;
-	if(!entry->getEntry()->hasDrawable()) //not added to the rendering pipeline yet
-	{ 
-		//add the object
-		obj = gObjectList.processObjectUpdateFromCache(entry, this);
-		if(obj)
-		{
-			if(!entry->isState(LLVOCacheEntry::ACTIVE))
-			{
-				mImpl->mWaitingSet.insert(entry);
-				entry->setState(LLVOCacheEntry::WAITING);
-			}
-		}
-	}
-	else
-	{
-		LLViewerRegion* old_regionp = ((LLDrawable*)entry->getEntry()->getDrawable())->getRegion();
-		if(old_regionp != this)
-		{
-			//this object exists in two regions at the same time;
-			//this case can be safely ignored here because
-			//server should soon send update message to remove one region for this object.
-
-			LL_WARNS() << "Entry: " << entry->getLocalID() << " exists in two regions at the same time." << LL_ENDL;
-			return NULL;
-		}
-		
-		LL_WARNS() << "Entry: " << entry->getLocalID() << " in rendering pipeline but not set to be active." << LL_ENDL;
-
-		//should not hit here any more, but does not hurt either, just put it back to active list
-		addActiveCacheEntry(entry);
-	}
-
-	return obj;
-}
-
-//update object cache if the object receives a full-update or terse update
-//update_type == EObjectUpdateType::OUT_TERSE_IMPROVED or EObjectUpdateType::OUT_FULL
-LLViewerObject* LLViewerRegion::updateCacheEntry(U32 local_id, LLViewerObject* objectp)
-{
-	LLVOCacheEntry* entry = getCacheEntry(local_id);
-	if (!entry)
-	{
-		return objectp; //not in the cache, do nothing.
-	}
-	if(!objectp) //object not created
-	{
-		//create a new object from cache.
-		objectp = addNewObject(entry);
-	}
-
-    //remove from cache.
-    killCacheEntry(entry, true);
-
-	return objectp;
-}
-
-// As above, but forcibly do the update.
-void LLViewerRegion::forceUpdate()
-{
-	mImpl->mLandp->idleUpdate(0.f);
-
-	if (mParcelOverlay)
-	{
-		mParcelOverlay->idleUpdate(true);
-	}
-}
-
-void LLViewerRegion::connectNeighbor(LLViewerRegion *neighborp, U32 direction)
-{
-	mImpl->mLandp->connectNeighbor(neighborp->mImpl->mLandp, direction);
-}
-
-
-void LLViewerRegion::disconnectAllNeighbors()
-{
-	mImpl->mLandp->disconnectAllNeighbors();
-}
-
-LLVLComposition * LLViewerRegion::getComposition() const
-{
-	return mImpl->mCompositionp;
-}
-
-F32 LLViewerRegion::getCompositionXY(const S32 x, const S32 y) const
-{
-	if (x >= 256)
-	{
-		if (y >= 256)
-		{
-			LLVector3d center = getCenterGlobal() + LLVector3d(256.f, 256.f, 0.f);
-			LLViewerRegion *regionp = LLWorld::getInstance()->getRegionFromPosGlobal(center);
-			if (regionp)
-			{
-				// OK, we need to do some hackery here - different simulators no longer use
-				// the same composition values, necessarily.
-				// If we're attempting to blend, then we want to make the fractional part of
-				// this region match the fractional of the adjacent.  For now, just minimize
-				// the delta.
-				F32 our_comp = getComposition()->getValueScaled(255, 255);
-				F32 adj_comp = regionp->getComposition()->getValueScaled(x - 256.f, y - 256.f);
-				while (llabs(our_comp - adj_comp) >= 1.f)
-				{
-					if (our_comp > adj_comp)
-					{
-						adj_comp += 1.f;
-					}
-					else
-					{
-						adj_comp -= 1.f;
-					}
-				}
-				return adj_comp;
-			}
-		}
-		else
-		{
-			LLVector3d center = getCenterGlobal() + LLVector3d(256.f, 0, 0.f);
-			LLViewerRegion *regionp = LLWorld::getInstance()->getRegionFromPosGlobal(center);
-			if (regionp)
-			{
-				// OK, we need to do some hackery here - different simulators no longer use
-				// the same composition values, necessarily.
-				// If we're attempting to blend, then we want to make the fractional part of
-				// this region match the fractional of the adjacent.  For now, just minimize
-				// the delta.
-				F32 our_comp = getComposition()->getValueScaled(255.f, (F32)y);
-				F32 adj_comp = regionp->getComposition()->getValueScaled(x - 256.f, (F32)y);
-				while (llabs(our_comp - adj_comp) >= 1.f)
-				{
-					if (our_comp > adj_comp)
-					{
-						adj_comp += 1.f;
-					}
-					else
-					{
-						adj_comp -= 1.f;
-					}
-				}
-				return adj_comp;
-			}
-		}
-	}
-	else if (y >= 256)
-	{
-		LLVector3d center = getCenterGlobal() + LLVector3d(0.f, 256.f, 0.f);
-		LLViewerRegion *regionp = LLWorld::getInstance()->getRegionFromPosGlobal(center);
-		if (regionp)
-		{
-			// OK, we need to do some hackery here - different simulators no longer use
-			// the same composition values, necessarily.
-			// If we're attempting to blend, then we want to make the fractional part of
-			// this region match the fractional of the adjacent.  For now, just minimize
-			// the delta.
-			F32 our_comp = getComposition()->getValueScaled((F32)x, 255.f);
-			F32 adj_comp = regionp->getComposition()->getValueScaled((F32)x, y - 256.f);
-			while (llabs(our_comp - adj_comp) >= 1.f)
-			{
-				if (our_comp > adj_comp)
-				{
-					adj_comp += 1.f;
-				}
-				else
-				{
-					adj_comp -= 1.f;
-				}
-			}
-			return adj_comp;
-		}
-	}
-
-	return getComposition()->getValueScaled((F32)x, (F32)y);
-}
-
-void LLViewerRegion::calculateCenterGlobal() 
-{
-	mImpl->mCenterGlobal = mImpl->mOriginGlobal;
-	mImpl->mCenterGlobal.mdV[VX] += 0.5 * mWidth;
-	mImpl->mCenterGlobal.mdV[VY] += 0.5 * mWidth;
-	mImpl->mCenterGlobal.mdV[VZ] = 0.5 * mImpl->mLandp->getMinZ() + mImpl->mLandp->getMaxZ();
-}
-
-void LLViewerRegion::calculateCameraDistance()
-{
-	mCameraDistanceSquared = (F32)(gAgentCamera.getCameraPositionGlobal() - getCenterGlobal()).magVecSquared();
-}
-
-std::ostream& operator<<(std::ostream &s, const LLViewerRegion &region)
-{
-	s << "{ ";
-	s << region.mImpl->mHost;
-	s << " mOriginGlobal = " << region.getOriginGlobal()<< "\n";
-    std::string name(region.getName()), zone(region.getZoning());
-    if (! name.empty())
-    {
-        s << " mName         = " << name << '\n';
-    }
-    if (! zone.empty())
-    {
-        s << " mZoning       = " << zone << '\n';
-    }
-	s << "}";
-	return s;
-}
-
-
-// ---------------- Protected Member Functions ----------------
-
-void LLViewerRegion::updateNetStats()
-{
-	F32 dt = mImpl->mLastNetUpdate.getElapsedTimeAndResetF32();
-
-	LLCircuitData *cdp = gMessageSystem->mCircuitInfo.findCircuit(mImpl->mHost);
-	if (!cdp)
-	{
-		mAlive = false;
-		return;
-	}
-
-	mAlive = true;
-	mDeltaTime = dt;
-
-	mLastPacketsIn =	mPacketsIn;
-	mLastBitsIn =		mBitsIn;
-	mLastPacketsOut =	mPacketsOut;
-	mLastPacketsLost =	mPacketsLost;
-
-	mPacketsIn =				cdp->getPacketsIn();
-	mBitsIn =					8 * cdp->getBytesIn();
-	mPacketsOut =				cdp->getPacketsOut();
-	mPacketsLost =				cdp->getPacketsLost();
-	mPingDelay =				cdp->getPingDelay();
-
-	mBitsReceived += mBitsIn - mLastBitsIn;
-	mPacketsReceived += mPacketsIn - mLastPacketsIn;
-}
-
-
-U32 LLViewerRegion::getPacketsLost() const
-{
-	LLCircuitData *cdp = gMessageSystem->mCircuitInfo.findCircuit(mImpl->mHost);
-	if (!cdp)
-	{
-		LL_INFOS() << "LLViewerRegion::getPacketsLost couldn't find circuit for " << mImpl->mHost << LL_ENDL;
-		return 0;
-	}
-	else
-	{
-		return cdp->getPacketsLost();
-	}
-}
-
-S32 LLViewerRegion::getHttpResponderID() const
-{
-	return mImpl->mHttpResponderID;
-}
-
-bool LLViewerRegion::pointInRegionGlobal(const LLVector3d &point_global) const
-{
-	LLVector3 pos_region = getPosRegionFromGlobal(point_global);
-
-	if (pos_region.mV[VX] < 0)
-	{
-		return false;
-	}
-	if (pos_region.mV[VX] >= mWidth)
-	{
-		return false;
-	}
-	if (pos_region.mV[VY] < 0)
-	{
-		return false;
-	}
-	if (pos_region.mV[VY] >= mWidth)
-	{
-		return false;
-	}
-	return true;
-}
-
-LLVector3 LLViewerRegion::getPosRegionFromGlobal(const LLVector3d &point_global) const
-{
-	LLVector3 pos_region;
-	pos_region.setVec(point_global - mImpl->mOriginGlobal);
-	return pos_region;
-}
-
-LLVector3d LLViewerRegion::getPosGlobalFromRegion(const LLVector3 &pos_region) const
-{
-	LLVector3d pos_region_d;
-	pos_region_d.setVec(pos_region);
-	return pos_region_d + mImpl->mOriginGlobal;
-}
-
-LLVector3 LLViewerRegion::getPosAgentFromRegion(const LLVector3 &pos_region) const
-{
-	LLVector3d pos_global = getPosGlobalFromRegion(pos_region);
-
-	return gAgent.getPosAgentFromGlobal(pos_global);
-}
-
-LLVector3 LLViewerRegion::getPosRegionFromAgent(const LLVector3 &pos_agent) const
-{
-	return pos_agent - getOriginAgent();
-}
-
-F32 LLViewerRegion::getLandHeightRegion(const LLVector3& region_pos)
-{
-	return mImpl->mLandp->resolveHeightRegion( region_pos );
-}
-
-bool LLViewerRegion::isAlive()
-{
-	return mAlive;
-}
-
-bool LLViewerRegion::isOwnedSelf(const LLVector3& pos)
-{
-	if (mParcelOverlay)
-	{
-		return mParcelOverlay->isOwnedSelf(pos);
-	} else {
-		return false;
-	}
-}
-
-// Owned by a group you belong to?  (officer or member)
-bool LLViewerRegion::isOwnedGroup(const LLVector3& pos)
-{
-	if (mParcelOverlay)
-	{
-		return mParcelOverlay->isOwnedGroup(pos);
-	} else {
-		return false;
-	}
-}
-
-// the new TCP coarse location handler node
-class CoarseLocationUpdate : public LLHTTPNode
-{
-public:
-	virtual void post(
-		ResponsePtr responder,
-		const LLSD& context,
-		const LLSD& input) const
-	{
-		LLHost host(input["sender"].asString());
-
-        LLWorld *world_inst = LLWorld::getInstance(); // Not a singleton!
-        if (!world_inst)
-        {
-            return;
-        }
-
-		LLViewerRegion* region = world_inst->getRegion(host);
-		if( !region )
-		{
-			return;
-		}
-
-		S32 target_index = input["body"]["Index"][0]["Prey"].asInteger();
-		S32 you_index    = input["body"]["Index"][0]["You" ].asInteger();
-
-		std::vector<U32>* avatar_locs = &region->mMapAvatars;
-		std::vector<LLUUID>* avatar_ids = &region->mMapAvatarIDs;
-		avatar_locs->clear();
-		avatar_ids->clear();
-
-		//LL_INFOS() << "coarse locations agent[0] " << input["body"]["AgentData"][0]["AgentID"].asUUID() << LL_ENDL;
-		//LL_INFOS() << "my agent id = " << gAgent.getID() << LL_ENDL;
-		//LL_INFOS() << ll_pretty_print_sd(input) << LL_ENDL;
-
-		LLSD 
-			locs   = input["body"]["Location"],
-			agents = input["body"]["AgentData"];
-		LLSD::array_iterator 
-			locs_it = locs.beginArray(), 
-			agents_it = agents.beginArray();
-		bool has_agent_data = input["body"].has("AgentData");
-
-		for(int i=0; 
-			locs_it != locs.endArray(); 
-			i++, locs_it++)
-		{
-			U8 
-				x = locs_it->get("X").asInteger(),
-				y = locs_it->get("Y").asInteger(),
-				z = locs_it->get("Z").asInteger();
-			// treat the target specially for the map, and don't add you or the target
-			if(i == target_index)
-			{
-				LLVector3d global_pos(region->getOriginGlobal());
-				global_pos.mdV[VX] += (F64)x;
-				global_pos.mdV[VY] += (F64)y;
-				global_pos.mdV[VZ] += (F64)z * 4.0;
-				LLAvatarTracker::instance().setTrackedCoarseLocation(global_pos);
-			}
-			else if( i != you_index)
-			{
-				U32 pos = 0x0;
-				pos |= x;
-				pos <<= 8;
-				pos |= y;
-				pos <<= 8;
-				pos |= z;
-				avatar_locs->push_back(pos);
-				//LL_INFOS() << "next pos: " << x << "," << y << "," << z << ": " << pos << LL_ENDL;
-				if(has_agent_data) // for backwards compatibility with old message format
-				{
-					LLUUID agent_id(agents_it->get("AgentID").asUUID());
-					//LL_INFOS() << "next agent: " << agent_id.asString() << LL_ENDL;
-					avatar_ids->push_back(agent_id);
-				}
-			}
-			if (has_agent_data)
-			{
-				agents_it++;
-			}
-		}
-	}
-};
-
-// build the coarse location HTTP node under the "/message" URL
-LLHTTPRegistration<CoarseLocationUpdate>
-   gHTTPRegistrationCoarseLocationUpdate(
-	   "/message/CoarseLocationUpdate");
-
-
-// the deprecated coarse location handler
-void LLViewerRegion::updateCoarseLocations(LLMessageSystem* msg)
-{
-	//LL_INFOS() << "CoarseLocationUpdate" << LL_ENDL;
-	mMapAvatars.clear();
-	mMapAvatarIDs.clear(); // only matters in a rare case but it's good to be safe.
-
-	U8 x_pos = 0;
-	U8 y_pos = 0;
-	U8 z_pos = 0;
-
-	U32 pos = 0x0;
-
-	S16 agent_index;
-	S16 target_index;
-	msg->getS16Fast(_PREHASH_Index, _PREHASH_You, agent_index);
-	msg->getS16Fast(_PREHASH_Index, _PREHASH_Prey, target_index);
-
-	bool has_agent_data = msg->has(_PREHASH_AgentData);
-	S32 count = msg->getNumberOfBlocksFast(_PREHASH_Location);
-	for(S32 i = 0; i < count; i++)
-	{
-		msg->getU8Fast(_PREHASH_Location, _PREHASH_X, x_pos, i);
-		msg->getU8Fast(_PREHASH_Location, _PREHASH_Y, y_pos, i);
-		msg->getU8Fast(_PREHASH_Location, _PREHASH_Z, z_pos, i);
-		LLUUID agent_id = LLUUID::null;
-		if(has_agent_data)
-		{
-			msg->getUUIDFast(_PREHASH_AgentData, _PREHASH_AgentID, agent_id, i);
-		}
-
-		//LL_INFOS() << "  object X: " << (S32)x_pos << " Y: " << (S32)y_pos
-		//		<< " Z: " << (S32)(z_pos * 4)
-		//		<< LL_ENDL;
-
-		// treat the target specially for the map
-		if(i == target_index)
-		{
-			LLVector3d global_pos(mImpl->mOriginGlobal);
-			global_pos.mdV[VX] += (F64)(x_pos);
-			global_pos.mdV[VY] += (F64)(y_pos);
-			global_pos.mdV[VZ] += (F64)(z_pos) * 4.0;
-			LLAvatarTracker::instance().setTrackedCoarseLocation(global_pos);
-		}
-		
-		//don't add you
-		if( i != agent_index)
-		{
-			pos = 0x0;
-			pos |= x_pos;
-			pos <<= 8;
-			pos |= y_pos;
-			pos <<= 8;
-			pos |= z_pos;
-			mMapAvatars.push_back(pos);
-			if(has_agent_data)
-			{
-				mMapAvatarIDs.push_back(agent_id);
-			}
-		}
-	}
-}
-
-void LLViewerRegion::getInfo(LLSD& info)
-{
-	info["Region"]["Host"] = getHost().getIPandPort();
-	info["Region"]["Name"] = getName();
-	U32 x, y;
-	from_region_handle(getHandle(), &x, &y);
-	info["Region"]["Handle"]["x"] = (LLSD::Integer)x;
-	info["Region"]["Handle"]["y"] = (LLSD::Integer)y;
-}
-
-void LLViewerRegion::requestSimulatorFeatures()
-{
-    LL_DEBUGS("SimulatorFeatures") << "region " << getName() << " ptr " << this
-                                   << " trying to request SimulatorFeatures" << LL_ENDL;
-    // kick off a request for simulator features
-    std::string url = getCapability("SimulatorFeatures");
-    if (!url.empty())
-    {
-        std::string coroname =
-            LLCoros::instance().launch("LLViewerRegionImpl::requestSimulatorFeatureCoro",
-                                       boost::bind(&LLViewerRegionImpl::requestSimulatorFeatureCoro, url, getHandle()));
-
-        // requestSimulatorFeatures can be called from other coros,
-        // launch() acts like a suspend()
-        // Make sure we are still good to do
-        LLCoros::checkStop();
-        
-        LL_INFOS("AppInit", "SimulatorFeatures") << "Launching " << coroname << " requesting simulator features from " << url << " for region " << getRegionID() << LL_ENDL;
-    }
-    else
-    {
-        LL_WARNS("AppInit", "SimulatorFeatures") << "SimulatorFeatures cap not set" << LL_ENDL;
-    }
-}
-
-boost::signals2::connection LLViewerRegion::setSimulatorFeaturesReceivedCallback(const caps_received_signal_t::slot_type& cb)
-{
-	return mSimulatorFeaturesReceivedSignal.connect(cb);
-}
-
-void LLViewerRegion::setSimulatorFeaturesReceived(bool received)
-{
-	mSimulatorFeaturesReceived = received;
-	if (received)
-	{
-		mSimulatorFeaturesReceivedSignal(getRegionID(), this);
-		mSimulatorFeaturesReceivedSignal.disconnect_all_slots();
-	}
-}
-
-bool LLViewerRegion::simulatorFeaturesReceived() const
-{
-	return mSimulatorFeaturesReceived;
-}
-
-void LLViewerRegion::getSimulatorFeatures(LLSD& sim_features) const
-{
-	sim_features = mSimulatorFeatures;
-
-}
-
-void LLViewerRegion::setSimulatorFeatures(const LLSD& sim_features)
-{
-	std::stringstream str;
-	
-	LLSDSerialize::toPrettyXML(sim_features, str);
-	LL_INFOS() << "region " << getName() << " "  << str.str() << LL_ENDL;
-	mSimulatorFeatures = sim_features;
-
-	setSimulatorFeaturesReceived(true);
-	
-}
-
-//this is called when the parent is not cacheable.
-//move all orphan children out of cache and insert to rendering octree.
-void LLViewerRegion::findOrphans(U32 parent_id)
-{
-	orphan_list_t::iterator iter = mOrphanMap.find(parent_id);
-	if(iter != mOrphanMap.end())
-	{
-		std::vector<U32>* children = &mOrphanMap[parent_id];
-		for(S32 i = 0; i < children->size(); i++)
-		{
-			//parent is visible, so is the child.
-			addVisibleChildCacheEntry(NULL, getCacheEntry((*children)[i]));
-		}
-		children->clear();
-		mOrphanMap.erase(parent_id);
-	}
-}
-
-void LLViewerRegion::decodeBoundingInfo(LLVOCacheEntry* entry)
-{
-	if(!sVOCacheCullingEnabled)
-	{
-		gObjectList.processObjectUpdateFromCache(entry, this);
-		return;
-	}
-	if(!entry || !entry->isValid())
-	{
-		return;
-	}
-
-	if(!entry->getEntry())
-	{
-		entry->setOctreeEntry(NULL);
-	}
-		
-	if(entry->getEntry()->hasDrawable()) //already in the rendering pipeline
-	{
-		LLViewerRegion* old_regionp = ((LLDrawable*)entry->getEntry()->getDrawable())->getRegion();
-		if(old_regionp != this && old_regionp)
-        {
-			LLViewerObject* obj = ((LLDrawable*)entry->getEntry()->getDrawable())->getVObj();
-			if(obj)
-			{
-				//remove from old region
-				old_regionp->killCacheEntry(obj->getLocalID());
-
-				//change region
-				obj->setRegion(this);
-			}
-		}
-
-		addActiveCacheEntry(entry);
-
-		//set parent id
-		U32	parent_id = 0;
-        if (entry->getDP()) // NULL if nothing cached
-        {
-            LLViewerObject::unpackParentID(entry->getDP(), parent_id);
-        }
-		if(parent_id != entry->getParentID())
-		{				
-			entry->setParentID(parent_id);
-		}
-
-		//update the object
-		gObjectList.processObjectUpdateFromCache(entry, this);
-		return; //done
-	}
-	
-	//must not be active.
-	llassert_always(!entry->isState(LLVOCacheEntry::ACTIVE));
-	removeFromVOCacheTree(entry); //remove from cache octree if it is in.
-
-	LLVector3 pos;
-	LLVector3 scale;
-	LLQuaternion rot;
-
-	//decode spatial info and parent info
-	U32 parent_id = entry->getDP() ? LLViewerObject::extractSpatialExtents(entry->getDP(), pos, scale, rot) : entry->getParentID();
-	
-	U32 old_parent_id = entry->getParentID();
-	bool same_old_parent = false;
-	if(parent_id != old_parent_id) //parent changed.
-	{
-		if(old_parent_id > 0) //has an old parent, disconnect it
-		{
-			LLVOCacheEntry* old_parent = getCacheEntry(old_parent_id);
-			if(old_parent)
-			{
-				old_parent->removeChild(entry);
-				if(!old_parent->isState(LLVOCacheEntry::INACTIVE))
-				{
-					mImpl->mVisibleEntries.erase(entry);
-					entry->setState(LLVOCacheEntry::INACTIVE);
-				}
-			}
-		}
-		entry->setParentID(parent_id);
-	}
-	else
-	{
-		same_old_parent = true;
-	}
-
-	if(parent_id > 0) //has a new parent
-	{	
-		//1, find the parent in cache
-		LLVOCacheEntry* parent = getCacheEntry(parent_id);
-		
-		//2, parent is not in the cache, put into the orphan list.
-		if(!parent)
-		{
-			if(!same_old_parent)
-			{
-				//check if parent is non-cacheable and already created
-				if(isNonCacheableObjectCreated(parent_id))
-				{
-					//parent is visible, so is the child.
-					addVisibleChildCacheEntry(NULL, entry);
-				}
-				else
-				{
-					entry->setBoundingInfo(pos, scale);
-					mOrphanMap[parent_id].push_back(entry->getLocalID());
-				}
-			}
-			else
-			{
-				entry->setBoundingInfo(pos, scale);
-			}
-		}
-		else //parent in cache.
-		{
-			if(!parent->isState(LLVOCacheEntry::INACTIVE)) 
-			{
-				//parent is visible, so is the child.
-				addVisibleChildCacheEntry(parent, entry);
-			}
-			else
-			{
-				entry->setBoundingInfo(pos, scale);
-				parent->addChild(entry);
-
-				if(parent->getGroup()) //re-insert parent to vo-cache tree because its bounding info changed.
-				{
-					removeFromVOCacheTree(parent);
-					addToVOCacheTree(parent);
-				}
-			}
-		}
-
-		return;
-	}
-	
-	//
-	//no parent
-	//
-	entry->setBoundingInfo(pos, scale);	
-
-	if(!parent_id) //a potential parent
-	{
-		//find all children and update their bounding info
-		orphan_list_t::iterator iter = mOrphanMap.find(entry->getLocalID());
-		if(iter != mOrphanMap.end())
-		{			
-			std::vector<U32>* orphans = &mOrphanMap[entry->getLocalID()];
-			S32 size = orphans->size();
-			for(S32 i = 0; i < size; i++)
-			{
-				LLVOCacheEntry* child = getCacheEntry((*orphans)[i]);
-				if(child)
-				{
-					entry->addChild(child);
-				}
-			}
-			orphans->clear();
-			mOrphanMap.erase(entry->getLocalID());
-		}
-	}
-	
-	if(!entry->getGroup() && entry->isState(LLVOCacheEntry::INACTIVE))
-	{
-		addToVOCacheTree(entry);
-	}
-	return ;
-}
-
-LLViewerRegion::eCacheUpdateResult LLViewerRegion::cacheFullUpdate(LLDataPackerBinaryBuffer &dp, U32 flags)
-{
-	eCacheUpdateResult result;
-	U32 crc;
-	U32 local_id;
-
-	LLViewerObject::unpackU32(&dp, local_id, "LocalID");
-	LLViewerObject::unpackU32(&dp, crc, "CRC");
-
-	LLVOCacheEntry* entry = getCacheEntry(local_id, false);
-
-	if (entry)
-	{
-		entry->setValid();
-
-		// we've seen this object before
-		if (entry->getCRC() == crc)
-		{
-            LL_DEBUGS("AnimatedObjects") << " got dupe for local_id " << local_id << LL_ENDL;
-            dumpStack("AnimatedObjectsStack");
-
-			// Record a hit
-			entry->recordDupe();
-			result = CACHE_UPDATE_DUPE;
-		}
-		else //CRC changed
-		{
-            LL_DEBUGS("AnimatedObjects") << " got update for local_id " << local_id << LL_ENDL;
-            dumpStack("AnimatedObjectsStack");
-
-			// Update the cache entry 
-			entry->updateEntry(crc, dp);
-
-			decodeBoundingInfo(entry);
-
-			result = CACHE_UPDATE_CHANGED;
-		}		
-	}
-	else
-	{
-        LL_DEBUGS("AnimatedObjects") << " got first notification for local_id " << local_id << LL_ENDL;
-        dumpStack("AnimatedObjectsStack");
-
-		// we haven't seen this object before
-		// Create new entry and add to map
-		result = CACHE_UPDATE_ADDED;
-		entry = new LLVOCacheEntry(local_id, crc, dp);
-		record(LLStatViewer::OBJECT_CACHE_HIT_RATE, LLUnits::Ratio::fromValue(0)); 
-		
-		mImpl->mCacheMap[local_id] = entry;
-		
-		decodeBoundingInfo(entry);
-	}
-	entry->setUpdateFlags(flags);
-
-	return result;
-	}
-
-LLViewerRegion::eCacheUpdateResult LLViewerRegion::cacheFullUpdate(LLViewerObject* objectp, LLDataPackerBinaryBuffer &dp, U32 flags)
-{
-	eCacheUpdateResult result = cacheFullUpdate(dp, flags);
-
-	return result;
-}
-
-void LLViewerRegion::cacheFullUpdateGLTFOverride(const LLGLTFOverrideCacheEntry &override_data)
-{
-    U32 local_id = override_data.mLocalId;
-    mImpl->mGLTFOverridesLLSD[local_id] = override_data;
-}
-
-LLVOCacheEntry* LLViewerRegion::getCacheEntryForOctree(U32 local_id)
-{
-	if(!sVOCacheCullingEnabled)
-	{
-		return NULL;
-	}
-
-	LLVOCacheEntry* entry = getCacheEntry(local_id);
-	removeFromVOCacheTree(entry);
-		
-	return entry;
-}
-
-LLVOCacheEntry* LLViewerRegion::getCacheEntry(U32 local_id, bool valid)
-{
-	LLVOCacheEntry::vocache_entry_map_t::iterator iter = mImpl->mCacheMap.find(local_id);
-	if(iter != mImpl->mCacheMap.end())
-	{
-		if(!valid || iter->second->isValid())
-		{
-			return iter->second;
-		}
-	}
-	return NULL;
-}
-
-void LLViewerRegion::addCacheMiss(U32 id, LLViewerRegion::eCacheMissType cache_miss_type)
-{
-	mRegionCacheMissCount++;
-    mCacheMissList.push_back(CacheMissItem(id, cache_miss_type));
-}
-
-//check if a non-cacheable object is already created.
-bool LLViewerRegion::isNonCacheableObjectCreated(U32 local_id)
-{
-	if(mImpl && local_id > 0 && mImpl->mNonCacheableCreatedList.find(local_id) != mImpl->mNonCacheableCreatedList.end())
-	{
-		return true;
-	}
-	return false;
-}
-		
-void LLViewerRegion::removeFromCreatedList(U32 local_id)
-{	
-	if(mImpl && local_id > 0)
-	{
-		std::set<U32>::iterator iter = mImpl->mNonCacheableCreatedList.find(local_id);
-		if(iter != mImpl->mNonCacheableCreatedList.end())
-		{
-			mImpl->mNonCacheableCreatedList.erase(iter);
-		}
-	}
-	}
-
-void LLViewerRegion::addToCreatedList(U32 local_id)
-{
-	if(mImpl && local_id > 0)
-	{
-		mImpl->mNonCacheableCreatedList.insert(local_id);
-	}
-}
-
-// Get data packer for this object, if we have cached data
-// AND the CRC matches. JC
-bool LLViewerRegion::probeCache(U32 local_id, U32 crc, U32 flags, U8 &cache_miss_type)
-{
-	//llassert(mCacheLoaded);  This assert failes often, changing to early-out -- davep, 2010/10/18
-
-	LLVOCacheEntry* entry = getCacheEntry(local_id, false);
-
-	if (entry)
-	{
-		// we've seen this object before
-		if (entry->getCRC() == crc)
-		{
-			// Record a hit
-			mRegionCacheHitCount++;
-			entry->recordHit();
-            cache_miss_type = CACHE_MISS_TYPE_NONE;
-			entry->setUpdateFlags(flags);
-			
-			if(entry->isState(LLVOCacheEntry::ACTIVE))
-			{
-				((LLDrawable*)entry->getEntry()->getDrawable())->getVObj()->loadFlags(flags);
-				return true;
-			}
-
-			if(entry->isValid())
-			{
-				return true; //already probed
-			}
-
-			entry->setValid();
-			decodeBoundingInfo(entry);
-
-            //loadCacheMiscExtras(local_id, entry, crc);
-
-			return true;
-		}
-		else
-		{
-			// LL_INFOS() << "CRC miss for " << local_id << LL_ENDL;
-
-			addCacheMiss(local_id, CACHE_MISS_TYPE_CRC);
-            cache_miss_type = CACHE_MISS_TYPE_CRC;
-		}
-	}
-	else
-	{	// Total miss, don't have the object in cache
-		// LL_INFOS() << "Cache miss for " << local_id << LL_ENDL;
-        addCacheMiss(local_id, CACHE_MISS_TYPE_TOTAL);
-        cache_miss_type = CACHE_MISS_TYPE_TOTAL;
-	}
-
-	return false;
-}
-
-void LLViewerRegion::addCacheMissFull(const U32 local_id)
-{
-	addCacheMiss(local_id, CACHE_MISS_TYPE_TOTAL);
-}
-
-void LLViewerRegion::requestCacheMisses()
-{
-	if (!mCacheMissList.size()) 
-	{
-		return;
-	}
-
-	LLMessageSystem* msg = gMessageSystem;
-	bool start_new_message = true;
-	S32 blocks = 0;
-
-	//send requests for all cache-missed objects
-	for (CacheMissItem::cache_miss_list_t::iterator iter = mCacheMissList.begin(); iter != mCacheMissList.end(); ++iter)
-	{
-		if (start_new_message)
-		{
-			msg->newMessageFast(_PREHASH_RequestMultipleObjects);
-			msg->nextBlockFast(_PREHASH_AgentData);
-			msg->addUUIDFast(_PREHASH_AgentID, gAgent.getID());
-			msg->addUUIDFast(_PREHASH_SessionID, gAgent.getSessionID());
-			start_new_message = false;
-		}
-
-		msg->nextBlockFast(_PREHASH_ObjectData);
-		msg->addU8Fast(_PREHASH_CacheMissType, (*iter).mType);
-		msg->addU32Fast(_PREHASH_ID, (*iter).mID);
-
-        LL_DEBUGS("AnimatedObjects") << "Requesting cache missed object " << (*iter).mID << LL_ENDL;
-        
-		blocks++;
-
-		if (blocks >= 255)
-		{
-			sendReliableMessage();
-			start_new_message = true;
-			blocks = 0;
-		}
-	}
-
-	// finish any pending message
-	if (!start_new_message)
-	{
-		sendReliableMessage();
-	}
-
-	mCacheDirty = true ;
-	// LL_INFOS() << "KILLDEBUG Sent cache miss full " << full_count << " crc " << crc_count << LL_ENDL;
-	LLViewerStatsRecorder::instance().requestCacheMissesEvent(mCacheMissList.size());
-
-	mCacheMissList.clear();
-}
-
-void LLViewerRegion::dumpCache()
-{
-	const S32 BINS = 4;
-	S32 hit_bin[BINS];
-	S32 change_bin[BINS];
-
-	S32 i;
-	for (i = 0; i < BINS; ++i)
-	{
-		hit_bin[i] = 0;
-		change_bin[i] = 0;
-	}
-
-	LLVOCacheEntry *entry;
-	for(LLVOCacheEntry::vocache_entry_map_t::iterator iter = mImpl->mCacheMap.begin(); iter != mImpl->mCacheMap.end(); ++iter)
-	{
-		entry = iter->second ;
-
-		S32 hits = entry->getHitCount();
-		S32 changes = entry->getCRCChangeCount();
-
-		hits = llclamp(hits, 0, BINS-1);
-		changes = llclamp(changes, 0, BINS-1);
-
-		hit_bin[hits]++;
-		change_bin[changes]++;
-	}
-
-	LL_INFOS() << "Count " << mImpl->mCacheMap.size() << LL_ENDL;
-	for (i = 0; i < BINS; i++)
-	{
-		LL_INFOS() << "Hits " << i << " " << hit_bin[i] << LL_ENDL;
-	}
-	for (i = 0; i < BINS; i++)
-	{
-		LL_INFOS() << "Changes " << i << " " << change_bin[i] << LL_ENDL;
-	}
-	// TODO - add overrides cache too
-}
-
-void LLViewerRegion::unpackRegionHandshake()
-{
-	LLMessageSystem *msg = gMessageSystem;
-
-	U64 region_flags = 0;
-	U64 region_protocols = 0;
-	U8 sim_access;
-	std::string sim_name;
-	LLUUID sim_owner;
-	bool is_estate_manager;
-	F32 water_height;
-	F32 billable_factor;
-	LLUUID cache_id;
-
-	msg->getU8		("RegionInfo", "SimAccess", sim_access);
-	msg->getString	("RegionInfo", "SimName", sim_name);
-	msg->getUUID	("RegionInfo", "SimOwner", sim_owner);
-	msg->getBOOL	("RegionInfo", "IsEstateManager", is_estate_manager);
-	msg->getF32		("RegionInfo", "WaterHeight", water_height);
-	msg->getF32		("RegionInfo", "BillableFactor", billable_factor);
-	msg->getUUID	("RegionInfo", "CacheID", cache_id );
-
-	if (msg->has(_PREHASH_RegionInfo4))
-	{
-		msg->getU64Fast(_PREHASH_RegionInfo4, _PREHASH_RegionFlagsExtended, region_flags);
-		msg->getU64Fast(_PREHASH_RegionInfo4, _PREHASH_RegionProtocols, region_protocols);
-	}
-	else
-	{
-		U32 flags = 0;
-		msg->getU32Fast(_PREHASH_RegionInfo, _PREHASH_RegionFlags, flags);
-		region_flags = flags;
-	}
-
-	setRegionFlags(region_flags);
-	setRegionProtocols(region_protocols);
-	setSimAccess(sim_access);
-	setRegionNameAndZone(sim_name);
-	setOwner(sim_owner);
-	setIsEstateManager(is_estate_manager);
-	setWaterHeight(water_height);
-	setBillableFactor(billable_factor);
-	setCacheID(cache_id);
-
-	LLUUID region_id;
-	msg->getUUID("RegionInfo2", "RegionID", region_id);
-	setRegionID(region_id);
-	
-	// Retrieve the CR-53 (Homestead/Land SKU) information
-	S32 classID = 0;
-	S32 cpuRatio = 0;
-	std::string coloName;
-	std::string productSKU;
-	std::string productName;
-
-	// the only reasonable way to decide if we actually have any data is to
-	// check to see if any of these fields have positive sizes
-	if (msg->getSize("RegionInfo3", "ColoName") > 0 ||
-	    msg->getSize("RegionInfo3", "ProductSKU") > 0 ||
-	    msg->getSize("RegionInfo3", "ProductName") > 0)
-	{
-		msg->getS32     ("RegionInfo3", "CPUClassID",  classID);
-		msg->getS32     ("RegionInfo3", "CPURatio",    cpuRatio);
-		msg->getString  ("RegionInfo3", "ColoName",    coloName);
-		msg->getString  ("RegionInfo3", "ProductSKU",  productSKU);
-		msg->getString  ("RegionInfo3", "ProductName", productName);
-		
-		mClassID = classID;
-		mCPURatio = cpuRatio;
-		mColoName = coloName;
-		mProductSKU = productSKU;
-		mProductName = productName;
-	}
-
-	mCentralBakeVersion = region_protocols & 1; // was (S32)gSavedSettings.getBOOL("UseServerTextureBaking");
-	LLVLComposition *compp = getComposition();
-	if (compp)
-	{
-		LLUUID tmp_id;
-
-		bool changed = false;
-
-		// Get the 4 textures for land
-		msg->getUUID("RegionInfo", "TerrainDetail0", tmp_id);
-		changed |= (tmp_id != compp->getDetailTextureID(0));		
-		compp->setDetailTextureID(0, tmp_id);
-
-		msg->getUUID("RegionInfo", "TerrainDetail1", tmp_id);
-		changed |= (tmp_id != compp->getDetailTextureID(1));		
-		compp->setDetailTextureID(1, tmp_id);
-
-		msg->getUUID("RegionInfo", "TerrainDetail2", tmp_id);
-		changed |= (tmp_id != compp->getDetailTextureID(2));		
-		compp->setDetailTextureID(2, tmp_id);
-
-		msg->getUUID("RegionInfo", "TerrainDetail3", tmp_id);
-		changed |= (tmp_id != compp->getDetailTextureID(3));		
-		compp->setDetailTextureID(3, tmp_id);
-
-		// Get the start altitude and range values for land textures
-		F32 tmp_f32;
-		msg->getF32("RegionInfo", "TerrainStartHeight00", tmp_f32);
-		changed |= (tmp_f32 != compp->getStartHeight(0));
-		compp->setStartHeight(0, tmp_f32);
-
-		msg->getF32("RegionInfo", "TerrainStartHeight01", tmp_f32);
-		changed |= (tmp_f32 != compp->getStartHeight(1));
-		compp->setStartHeight(1, tmp_f32);
-
-		msg->getF32("RegionInfo", "TerrainStartHeight10", tmp_f32);
-		changed |= (tmp_f32 != compp->getStartHeight(2));
-		compp->setStartHeight(2, tmp_f32);
-
-		msg->getF32("RegionInfo", "TerrainStartHeight11", tmp_f32);
-		changed |= (tmp_f32 != compp->getStartHeight(3));
-		compp->setStartHeight(3, tmp_f32);
-
-
-		msg->getF32("RegionInfo", "TerrainHeightRange00", tmp_f32);
-		changed |= (tmp_f32 != compp->getHeightRange(0));
-		compp->setHeightRange(0, tmp_f32);
-
-		msg->getF32("RegionInfo", "TerrainHeightRange01", tmp_f32);
-		changed |= (tmp_f32 != compp->getHeightRange(1));
-		compp->setHeightRange(1, tmp_f32);
-
-		msg->getF32("RegionInfo", "TerrainHeightRange10", tmp_f32);
-		changed |= (tmp_f32 != compp->getHeightRange(2));
-		compp->setHeightRange(2, tmp_f32);
-
-		msg->getF32("RegionInfo", "TerrainHeightRange11", tmp_f32);
-		changed |= (tmp_f32 != compp->getHeightRange(3));
-		compp->setHeightRange(3, tmp_f32);
-
-		// If this is an UPDATE (params already ready, we need to regenerate
-		// all of our terrain stuff, by
-		if (compp->getParamsReady())
-		{
-			// Update if the land changed
-			if (changed)
-			{
-				getLand().dirtyAllPatches();
-			}
-		}
-		else
-		{
-			compp->setParamsReady();
-		}
-	}
-
-
-	// Now that we have the name, we can load the cache file
-	// off disk.
-	loadObjectCache();
-
-	// After loading cache, signal that simulator can start
-	// sending data.
-	// TODO: Send all upstream viewer->sim handshake info here.
-	LLHost host = msg->getSender();
-	msg->newMessage("RegionHandshakeReply");
-	msg->nextBlock("AgentData");
-	msg->addUUID("AgentID", gAgent.getID());
-	msg->addUUID("SessionID", gAgent.getSessionID());
-	msg->nextBlock("RegionInfo");
-
-	U32 flags = 0;
-	flags |= REGION_HANDSHAKE_SUPPORTS_SELF_APPEARANCE;
-
-	if(sVOCacheCullingEnabled)
-	{
-		flags |= 0x00000001; //set the bit 0 to be 1 to ask sim to send all cacheable objects.		
-	}
-	if(mImpl->mCacheMap.empty())
-	{
-		flags |= 0x00000002; //set the bit 1 to be 1 to tell sim the cache file is empty, no need to send cache probes.
-	}
-	msg->addU32("Flags", flags );
-	msg->sendReliable(host);
-
-	mRegionTimer.reset(); //reset region timer.
-}
-
-// static
-void LLViewerRegionImpl::buildCapabilityNames(LLSD& capabilityNames)
-{
-	capabilityNames.append("AbuseCategories");
-	capabilityNames.append("AcceptFriendship");
-	capabilityNames.append("AcceptGroupInvite"); // ReadOfflineMsgs recieved messages only!!!
-	capabilityNames.append("AgentPreferences");
-    capabilityNames.append("AgentProfile");
-	capabilityNames.append("AgentState");
-	capabilityNames.append("AttachmentResources");
-	capabilityNames.append("AvatarPickerSearch");
-	capabilityNames.append("AvatarRenderInfo");
-	capabilityNames.append("CharacterProperties");
-	capabilityNames.append("ChatSessionRequest");
-	capabilityNames.append("CopyInventoryFromNotecard");
-	capabilityNames.append("CreateInventoryCategory");
-	capabilityNames.append("DeclineFriendship");
-	capabilityNames.append("DeclineGroupInvite"); // ReadOfflineMsgs recieved messages only!!!
-	capabilityNames.append("DispatchRegionInfo");
-	capabilityNames.append("DirectDelivery");
-	capabilityNames.append("EnvironmentSettings");
-	capabilityNames.append("EstateAccess");
-	capabilityNames.append("EstateChangeInfo");
-	capabilityNames.append("EventQueueGet");
-    capabilityNames.append("ExtEnvironment");
-
-	capabilityNames.append("FetchLib2");
-	capabilityNames.append("FetchLibDescendents2");
-	capabilityNames.append("FetchInventory2");
-	capabilityNames.append("FetchInventoryDescendents2");
-	capabilityNames.append("IncrementCOFVersion");
-	AISAPI::getCapNames(capabilityNames);
-
-	capabilityNames.append("InterestList");
-
-    capabilityNames.append("InventoryThumbnailUpload");
-	capabilityNames.append("GetDisplayNames");
-	capabilityNames.append("GetExperiences");
-	capabilityNames.append("AgentExperiences");
-	capabilityNames.append("FindExperienceByName");
-	capabilityNames.append("GetExperienceInfo");
-	capabilityNames.append("GetAdminExperiences");
-	capabilityNames.append("GetCreatorExperiences");
-	capabilityNames.append("ExperiencePreferences");
-	capabilityNames.append("GroupExperiences");
-	capabilityNames.append("UpdateExperience");
-	capabilityNames.append("IsExperienceAdmin");
-	capabilityNames.append("IsExperienceContributor");
-	capabilityNames.append("RegionExperiences");
-    capabilityNames.append("ExperienceQuery");
-	capabilityNames.append("GetMetadata");
-	capabilityNames.append("GetObjectCost");
-	capabilityNames.append("GetObjectPhysicsData");
-	capabilityNames.append("GroupAPIv1");
-	capabilityNames.append("GroupMemberData");
-	capabilityNames.append("GroupProposalBallot");
-	capabilityNames.append("HomeLocation");
-	capabilityNames.append("LandResources");
-	capabilityNames.append("LSLSyntax");
-	capabilityNames.append("MapLayer");
-	capabilityNames.append("MapLayerGod");
-	capabilityNames.append("MeshUploadFlag");	
-	capabilityNames.append("ModifyMaterialParams");
-	capabilityNames.append("NavMeshGenerationStatus");
-	capabilityNames.append("NewFileAgentInventory");
-	capabilityNames.append("ObjectAnimation");
-	capabilityNames.append("ObjectMedia");
-	capabilityNames.append("ObjectMediaNavigate");
-	capabilityNames.append("ObjectNavMeshProperties");
-	capabilityNames.append("ParcelPropertiesUpdate");
-	capabilityNames.append("ParcelVoiceInfoRequest");
-	capabilityNames.append("ProductInfoRequest");
-	capabilityNames.append("ProvisionVoiceAccountRequest");
-	capabilityNames.append("ReadOfflineMsgs"); // Requires to respond reliably: AcceptFriendship, AcceptGroupInvite, DeclineFriendship, DeclineGroupInvite
-	capabilityNames.append("RegionObjects");
-	capabilityNames.append("RemoteParcelRequest");
-	capabilityNames.append("RenderMaterials");
-	capabilityNames.append("RequestTextureDownload");
-	capabilityNames.append("ResourceCostSelected");
-	capabilityNames.append("RetrieveNavMeshSrc");
-	capabilityNames.append("SearchStatRequest");
-	capabilityNames.append("SearchStatTracking");
-	capabilityNames.append("SendPostcard");
-	capabilityNames.append("SendUserReport");
-	capabilityNames.append("SendUserReportWithScreenshot");
-	capabilityNames.append("ServerReleaseNotes");
-	capabilityNames.append("SetDisplayName");
-	capabilityNames.append("SimConsoleAsync");
-	capabilityNames.append("SimulatorFeatures");
-	capabilityNames.append("StartGroupProposal");
-	capabilityNames.append("TerrainNavMeshProperties");
-	capabilityNames.append("TextureStats");
-	capabilityNames.append("UntrustedSimulatorMessage");
-	capabilityNames.append("UpdateAgentInformation");
-	capabilityNames.append("UpdateAgentLanguage");
-	capabilityNames.append("UpdateAvatarAppearance");
-	capabilityNames.append("UpdateGestureAgentInventory");
-	capabilityNames.append("UpdateGestureTaskInventory");
-	capabilityNames.append("UpdateNotecardAgentInventory");
-	capabilityNames.append("UpdateNotecardTaskInventory");
-	capabilityNames.append("UpdateScriptAgent");
-	capabilityNames.append("UpdateScriptTask");
-    capabilityNames.append("UpdateSettingsAgentInventory");
-    capabilityNames.append("UpdateSettingsTaskInventory");
-    capabilityNames.append("UploadAgentProfileImage");
-    capabilityNames.append("UpdateMaterialAgentInventory");
-    capabilityNames.append("UpdateMaterialTaskInventory");
-	capabilityNames.append("UploadBakedTexture");
-    capabilityNames.append("UserInfo");
-	capabilityNames.append("ViewerAsset"); 
-	capabilityNames.append("ViewerBenefits");
-	capabilityNames.append("ViewerMetrics");
-	capabilityNames.append("ViewerStartAuction");
-	capabilityNames.append("ViewerStats");
-
-	// Please add new capabilities alphabetically to reduce
-	// merge conflicts.
-}
-
-void LLViewerRegion::setSeedCapability(const std::string& url)
-{
-	if (getCapability("Seed") == url)
-    {	
-		setCapabilityDebug("Seed", url);
-		LL_WARNS("CrossingCaps") <<  "Received duplicate seed capability for " << getRegionID() << ", posting to seed " <<
-				url	<< LL_ENDL;
-
-		//Instead of just returning we build up a second set of seed caps and compare them 
-		//to the "original" seed cap received and determine why there is problem!
-        std::string coroname =
-            LLCoros::instance().launch("LLEnvironmentRequest::requestBaseCapabilitiesCompleteCoro",
-            boost::bind(&LLViewerRegionImpl::requestBaseCapabilitiesCompleteCoro, getHandle()));
-
-        // setSeedCapability can be called from other coros,
-        // launch() acts like a suspend()
-        // Make sure we are still good to do
-        LLCoros::checkStop();
-
-		return;
-    }
-	
-	delete mImpl->mEventPoll;
-	mImpl->mEventPoll = NULL;
-	
-	mImpl->mCapabilities.clear();
-	setCapability("Seed", url);
-
-    std::string coroname =
-        LLCoros::instance().launch("LLViewerRegionImpl::requestBaseCapabilitiesCoro",
-        boost::bind(&LLViewerRegionImpl::requestBaseCapabilitiesCoro, getHandle()));
-
-    // setSeedCapability can be called from other coros,
-    // launch() acts like a suspend()
-    // Make sure we are still good to do
-    LLCoros::checkStop();
-
-    LL_INFOS("AppInit", "Capabilities") << "Launching " << coroname << " requesting seed capabilities from " << url << " for region " << getRegionID() << LL_ENDL;
-}
-
-S32 LLViewerRegion::getNumSeedCapRetries()
-{
-	return mImpl->mSeedCapAttempts;
-}
-
-void LLViewerRegion::setCapability(const std::string& name, const std::string& url)
-{
-	if(name == "EventQueueGet")
-	{
-		delete mImpl->mEventPoll;
-		mImpl->mEventPoll = NULL;
-		mImpl->mEventPoll = new LLEventPoll(url, getHost());
-	}
-	else if(name == "UntrustedSimulatorMessage")
-	{
-        mImpl->mHost.setUntrustedSimulatorCap(url);
-	}
-	else if (name == "SimulatorFeatures")
-	{
-        mImpl->mCapabilities["SimulatorFeatures"] = url;
-        requestSimulatorFeatures();
-	}
-	else
-	{
-		mImpl->mCapabilities[name] = url;
-		if(name == "ViewerAsset")
-		{
-			/*==============================================================*/
-			// The following inserted lines are a hack for testing MAINT-7081,
-			// which is why the indentation and formatting are left ugly.
-			const char* VIEWERASSET = getenv("VIEWERASSET");
-			if (VIEWERASSET)
-			{
-				mImpl->mCapabilities[name] = VIEWERASSET;
-				mViewerAssetUrl = VIEWERASSET;
-			}
-			else
-			/*==============================================================*/
-			mViewerAssetUrl = url;
-		}
-	}
-}
-
-void LLViewerRegion::setCapabilityDebug(const std::string& name, const std::string& url)
-{
-	// Continue to not add certain caps, as we do in setCapability. This is so they match up when we check them later.
-	if ( ! ( name == "EventQueueGet" || name == "UntrustedSimulatorMessage" || name == "SimulatorFeatures" ) )
-	{
-		mImpl->mSecondCapabilitiesTracker[name] = url;
-		if(name == "ViewerAsset")
-		{
-			/*==============================================================*/
-			// The following inserted lines are a hack for testing MAINT-7081,
-			// which is why the indentation and formatting are left ugly.
-			const char* VIEWERASSET = getenv("VIEWERASSET");
-			if (VIEWERASSET)
-			{
-				mImpl->mSecondCapabilitiesTracker[name] = VIEWERASSET;
-				mViewerAssetUrl = VIEWERASSET;
-			}
-			else
-			/*==============================================================*/
-			mViewerAssetUrl = url;
-		}
-	}
-}
-
-std::string LLViewerRegion::getCapabilityDebug(const std::string& name) const
-{
-    CapabilityMap::const_iterator iter = mImpl->mSecondCapabilitiesTracker.find(name);
-    if (iter == mImpl->mSecondCapabilitiesTracker.end())
-    {
-        return "";
-    }
-
-    return iter->second;
-}
-
-
-bool LLViewerRegion::isSpecialCapabilityName(const std::string &name)
-{
-	return name == "EventQueueGet" || name == "UntrustedSimulatorMessage";
-}
-
-std::string LLViewerRegion::getCapability(const std::string& name) const
-{
-	if (!capabilitiesReceived() && (name!=std::string("Seed")) && (name!=std::string("ObjectMedia")))
-	{
-		LL_WARNS() << "getCapability called before caps received for " << name << LL_ENDL;
-	}
-	
-	CapabilityMap::const_iterator iter = mImpl->mCapabilities.find(name);
-	if(iter == mImpl->mCapabilities.end())
-	{
-		return "";
-	}
-
-	return iter->second;
-}
-
-bool LLViewerRegion::isCapabilityAvailable(const std::string& name) const
-{
-	if (!capabilitiesReceived() && (name!=std::string("Seed")) && (name!=std::string("ObjectMedia")))
-	{
-		LL_WARNS() << "isCapabilityAvailable called before caps received for " << name << LL_ENDL;
-	}
-	
-	CapabilityMap::const_iterator iter = mImpl->mCapabilities.find(name);
-	if(iter == mImpl->mCapabilities.end())
-	{
-		return false;
-	}
-
-	return true;
-}
-
-bool LLViewerRegion::capabilitiesReceived() const
-{
-	return mCapabilitiesState == CAPABILITIES_STATE_RECEIVED;
-}
-
-bool LLViewerRegion::capabilitiesError() const
-{
-    return mCapabilitiesState == CAPABILITIES_STATE_ERROR;
-}
-
-void LLViewerRegion::setCapabilitiesReceived(bool received)
-{
-	mCapabilitiesState = received ? CAPABILITIES_STATE_RECEIVED : CAPABILITIES_STATE_INIT;
-
-	// Tell interested parties that we've received capabilities,
-	// so that they can safely use getCapability().
-	if (received)
-	{
-		mCapabilitiesReceivedSignal(getRegionID(), this);
-
-		LLFloaterPermsDefault::sendInitialPerms();
-
-		// This is a single-shot signal. Forget callbacks to save resources.
-		mCapabilitiesReceivedSignal.disconnect_all_slots();
-
-		// Set the region to the desired interest list mode
-        setInterestListMode(gAgent.getInterestListMode());
-	}
-}
-
-void LLViewerRegion::setCapabilitiesError()
-{
-    mCapabilitiesState = CAPABILITIES_STATE_ERROR;
-}
-
-boost::signals2::connection LLViewerRegion::setCapabilitiesReceivedCallback(const caps_received_signal_t::slot_type& cb)
-{
-	return mCapabilitiesReceivedSignal.connect(cb);
-}
-
-void LLViewerRegion::logActiveCapabilities() const
-{
-	log_capabilities(mImpl->mCapabilities);
-}
-
-
-bool LLViewerRegion::requestPostCapability(const std::string &capName, LLSD &postData, httpCallback_t cbSuccess, httpCallback_t cbFailure)
-{
-    std::string url = getCapability(capName);
-
-    if (url.empty())
-    {
-        LL_WARNS("Region") << "Could not retrieve region " << getRegionID()
-			<< " POST capability \"" << capName << "\"" << LL_ENDL;
-        return false;
-    }
-
-    LLCoreHttpUtil::HttpCoroutineAdapter::callbackHttpPost(url, gAgent.getAgentPolicy(), postData, cbSuccess, cbFailure);
-    return true;
-}
-
-bool LLViewerRegion::requestGetCapability(const std::string &capName, httpCallback_t cbSuccess, httpCallback_t cbFailure)
-{
-    std::string url;
-
-    url = getCapability(capName);
-
-    if (url.empty())
-    {
-        LL_WARNS("Region") << "Could not retrieve region " << getRegionID()
-                           << " GET capability \"" << capName << "\"" << LL_ENDL;
-        return false;
-    }
-
-    LLCoreHttpUtil::HttpCoroutineAdapter::callbackHttpGet(url, gAgent.getAgentPolicy(), cbSuccess, cbFailure);
-    return true;
-}
-
-bool LLViewerRegion::requestDelCapability(const std::string &capName, httpCallback_t cbSuccess, httpCallback_t cbFailure)
-{
-    std::string url;
-
-    url = getCapability(capName);
-
-    if (url.empty())
-    {
-        LL_WARNS("Region") << "Could not retrieve region " << getRegionID() << " DEL capability \"" << capName << "\"" << LL_ENDL;
-        return false;
-    }
-
-    LLCoreHttpUtil::HttpCoroutineAdapter::callbackHttpDel(url, gAgent.getAgentPolicy(), cbSuccess, cbFailure);
-    return true;
-}
-
-void LLViewerRegion::setInterestListMode(const std::string &new_mode)
-{
-    if (new_mode != mInterestListMode)
-    {
-        mInterestListMode = new_mode;
-
-		if (mInterestListMode != IL_MODE_DEFAULT && mInterestListMode != IL_MODE_360)
-		{
-			LL_WARNS("360Capture") << "Region " << getRegionID() << " setInterestListMode() invalid interest list mode: " 
-				<< mInterestListMode << ", setting to default" << LL_ENDL;
-            mInterestListMode = IL_MODE_DEFAULT;
-		}
-
-		LLSD body;
-        body["mode"] = mInterestListMode;
-        if (requestPostCapability("InterestList", body,
-                                  [](const LLSD &response) {
-                                      LL_DEBUGS("360Capture") << "InterestList capability responded: \n"
-                                          << ll_pretty_print_sd(response) << LL_ENDL;
-                                  }))
-        {
-            LL_DEBUGS("360Capture") << "Region " << getRegionID()
-                                    << " Successfully posted an InterestList capability request with payload: \n"
-                                    << ll_pretty_print_sd(body) << LL_ENDL;
-        }
-        else
-        {
-            LL_WARNS("360Capture") << "Region " << getRegionID() 
-								   << " Unable to post an InterestList capability request with payload: \n"
-                                   << ll_pretty_print_sd(body) << LL_ENDL;
-        }
-    }
-    else
-    {
-        LL_DEBUGS("360Capture") << "Region " << getRegionID() << "No change, skipping Interest List mode POST to "
-								<< new_mode << " mode" << LL_ENDL;
-    }
-}
-
-
-void LLViewerRegion::resetInterestList()
-{
-	if (requestDelCapability("InterestList", [](const LLSD &response) {
-							LL_DEBUGS("360Capture") << "InterestList capability DEL responded: \n" << ll_pretty_print_sd(response) << LL_ENDL;
-						}))
-	{
-		LL_DEBUGS("360Capture") << "Region " << getRegionID() << " Successfully reset InterestList capability" << LL_ENDL;
-	}
-	else
-	{
-		LL_WARNS("360Capture") << "Region " << getRegionID() << " Unable to DEL InterestList capability request" << LL_ENDL;
-	}
-}
-
-
-LLSpatialPartition *LLViewerRegion::getSpatialPartition(U32 type)
-{
-	if (type < mImpl->mObjectPartition.size() && type < PARTITION_VO_CACHE)
-	{
-		return (LLSpatialPartition*)mImpl->mObjectPartition[type];
-	}
-	return NULL;
-}
-
-LLVOCachePartition* LLViewerRegion::getVOCachePartition()
-{
-	if(PARTITION_VO_CACHE < mImpl->mObjectPartition.size())
-	{
-		return (LLVOCachePartition*)mImpl->mObjectPartition[PARTITION_VO_CACHE];
-	}
-	return NULL;
-}
-
-// the viewer can not yet distinquish between normal- and estate-owned objects
-// so we collapse these two bits and enable the UI if either are set
-const U64 ALLOW_RETURN_ENCROACHING_OBJECT = REGION_FLAGS_ALLOW_RETURN_ENCROACHING_OBJECT
-											| REGION_FLAGS_ALLOW_RETURN_ENCROACHING_ESTATE_OBJECT;
-
-bool LLViewerRegion::objectIsReturnable(const LLVector3& pos, const std::vector<LLBBox>& boxes) const
-{
-	return (mParcelOverlay != NULL)
-		&& (mParcelOverlay->isOwnedSelf(pos)
-			|| mParcelOverlay->isOwnedGroup(pos)
-			|| (getRegionFlag(ALLOW_RETURN_ENCROACHING_OBJECT)
-				&& mParcelOverlay->encroachesOwned(boxes)) );
-}
-
-bool LLViewerRegion::childrenObjectReturnable( const std::vector<LLBBox>& boxes ) const
-{
-	bool result = false;
-	result = ( mParcelOverlay && mParcelOverlay->encroachesOnUnowned( boxes ) ) ? 1 : 0;
-	return result;
-}
-
-bool LLViewerRegion::objectsCrossParcel(const std::vector<LLBBox>& boxes) const
-{
-	return mParcelOverlay && mParcelOverlay->encroachesOnNearbyParcel(boxes);
-}
-
-void LLViewerRegion::getNeighboringRegions( std::vector<LLViewerRegion*>& uniqueRegions )
-{
-	mImpl->mLandp->getNeighboringRegions( uniqueRegions );
-}
-void LLViewerRegion::getNeighboringRegionsStatus( std::vector<S32>& regions )
-{
-	mImpl->mLandp->getNeighboringRegionsStatus( regions );
-}
-void LLViewerRegion::showReleaseNotes()
-{
-	std::string url = this->getCapability("ServerReleaseNotes");
-
-	if (url.empty()) {
-		// HACK haven't received the capability yet, we'll wait until
-		// it arives.
-		mReleaseNotesRequested = true;
-		return;
-	}
-
-	LLWeb::loadURL(url);
-	mReleaseNotesRequested = false;
-}
-
-std::string LLViewerRegion::getDescription() const
-{
-    return stringize(*this);
-}
-
-bool LLViewerRegion::meshUploadEnabled() const
-{
-	return (mSimulatorFeatures.has("MeshUploadEnabled") &&
-		mSimulatorFeatures["MeshUploadEnabled"].asBoolean());
-}
-
-bool LLViewerRegion::bakesOnMeshEnabled() const
-{
-	return (mSimulatorFeatures.has("BakesOnMeshEnabled") &&
-		mSimulatorFeatures["BakesOnMeshEnabled"].asBoolean());
-}
-
-bool LLViewerRegion::meshRezEnabled() const
-{
-	return (mSimulatorFeatures.has("MeshRezEnabled") &&
-				mSimulatorFeatures["MeshRezEnabled"].asBoolean());
-}
-
-bool LLViewerRegion::dynamicPathfindingEnabled() const
-{
-	return ( mSimulatorFeatures.has("DynamicPathfindingEnabled") &&
-			 mSimulatorFeatures["DynamicPathfindingEnabled"].asBoolean());
-}
-
-bool LLViewerRegion::avatarHoverHeightEnabled() const
-{
-	return ( mSimulatorFeatures.has("AvatarHoverHeightEnabled") &&
-			 mSimulatorFeatures["AvatarHoverHeightEnabled"].asBoolean());
-}
-/* Static Functions */
-
-void log_capabilities(const CapabilityMap &capmap)
-{
-	S32 count = 0;
-	CapabilityMap::const_iterator iter;
-	for (iter = capmap.begin(); iter != capmap.end(); ++iter, ++count)
-	{
-		if (!iter->second.empty())
-		{
-			LL_INFOS() << "log_capabilities: " << iter->first << " URL is " << iter->second << LL_ENDL;
-		}
-	}
-	LL_INFOS() << "log_capabilities: Dumped " << count << " entries." << LL_ENDL;
-}
-void LLViewerRegion::resetMaterialsCapThrottle()
-{
-	F32 requests_per_sec = 	1.0f; // original default;
-	if (   mSimulatorFeatures.has("RenderMaterialsCapability")
-		&& mSimulatorFeatures["RenderMaterialsCapability"].isReal() )
-	{
-		requests_per_sec = mSimulatorFeatures["RenderMaterialsCapability"].asReal();
-		if ( requests_per_sec == 0.0f )
-		{
-			requests_per_sec = 1.0f;
-			LL_WARNS("Materials")
-				<< "region '" << getName()
-				<< "' returned zero for RenderMaterialsCapability; using default "
-				<< requests_per_sec << " per second"
-				<< LL_ENDL;
-		}
-		LL_DEBUGS("Materials") << "region '" << getName()
-							   << "' RenderMaterialsCapability " << requests_per_sec
-							   << LL_ENDL;
-	}
-	else
-	{
-		LL_DEBUGS("Materials")
-			<< "region '" << getName()
-			<< "' did not return RenderMaterialsCapability, using default "
-			<< requests_per_sec << " per second"
-			<< LL_ENDL;
-	}
-	
-	mMaterialsCapThrottleTimer.resetWithExpiry( 1.0f / requests_per_sec );
-}
-
-U32 LLViewerRegion::getMaxMaterialsPerTransaction() const
-{
-	U32 max_entries = 50; // original hard coded default
-	if (   mSimulatorFeatures.has( "MaxMaterialsPerTransaction" )
-		&& mSimulatorFeatures[ "MaxMaterialsPerTransaction" ].isInteger())
-	{
-		max_entries = mSimulatorFeatures[ "MaxMaterialsPerTransaction" ].asInteger();
-	}
-	return max_entries;
-}
-
-std::string LLViewerRegion::getSimHostName()
-{
-	if (mSimulatorFeaturesReceived)
-	{
-		return mSimulatorFeatures.has("HostName") ? mSimulatorFeatures["HostName"].asString() : getHost().getHostName();
-	}
-	return std::string("...");
-}
-
-void LLViewerRegion::applyCacheMiscExtras(LLViewerObject* obj)
-{
-    LL_PROFILE_ZONE_SCOPED_CATEGORY_DISPLAY;
-    llassert(obj);
-
-    U32 local_id = obj->getLocalID();
-    auto iter = mImpl->mGLTFOverridesLLSD.find(local_id);
-    if (iter != mImpl->mGLTFOverridesLLSD.end())
-    {
-        llassert(iter->second.mGLTFMaterial.size() == iter->second.mSides.size());
-
-        for (auto& side : iter->second.mGLTFMaterial)
-        {
-            obj->setTEGLTFMaterialOverride(side.first, side.second);
-        }
-    }
-}
-
+/**

+ * @file llviewerregion.cpp

+ * @brief Implementation of the LLViewerRegion class.

+ *

+ * $LicenseInfo:firstyear=2000&license=viewerlgpl$

+ * Second Life Viewer Source Code

+ * Copyright (C) 2010-2013, Linden Research, Inc.

+ *

+ * This library is free software; you can redistribute it and/or

+ * modify it under the terms of the GNU Lesser General Public

+ * License as published by the Free Software Foundation;

+ * version 2.1 of the License only.

+ *

+ * This library is distributed in the hope that it will be useful,

+ * but WITHOUT ANY WARRANTY; without even the implied warranty of

+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

+ * Lesser General Public License for more details.

+ *

+ * You should have received a copy of the GNU Lesser General Public

+ * License along with this library; if not, write to the Free Software

+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA

+ *

+ * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA

+ * $/LicenseInfo$

+ */

+

+#include "llviewerprecompiledheaders.h"

+

+#include "llviewerregion.h"

+

+// linden libraries

+#include "indra_constants.h"

+#include "llaisapi.h"

+#include "llavatarnamecache.h"      // name lookup cap url

+#include "llfloaterreg.h"

+#include "llmath.h"

+#include "llregionflags.h"

+#include "llregionhandle.h"

+#include "llsurface.h"

+#include "message.h"

+//#include "vmath.h"

+#include "v3math.h"

+#include "v4math.h"

+

+#include "llagent.h"

+#include "llagentcamera.h"

+#include "llappviewer.h"

+#include "llavatarrenderinfoaccountant.h"

+#include "llcallingcard.h"

+#include "llcommandhandler.h"

+#include "lldir.h"

+#include "lleventpoll.h"

+#include "llfloatergodtools.h"

+#include "llfloaterreporter.h"

+#include "llfloaterregioninfo.h"

+#include "llgltfmateriallist.h"

+#include "llhttpnode.h"

+#include "llregioninfomodel.h"

+#include "llsdutil.h"

+#include "llstartup.h"

+#include "lltrans.h"

+#include "llurldispatcher.h"

+#include "llviewerobjectlist.h"

+#include "llviewerparceloverlay.h"

+#include "llviewerstatsrecorder.h"

+#include "llvlmanager.h"

+#include "llvlcomposition.h"

+#include "llvoavatarself.h"

+#include "llvocache.h"

+#include "llworld.h"

+#include "llspatialpartition.h"

+#include "stringize.h"

+#include "llviewercontrol.h"

+#include "llsdserialize.h"

+#include "llfloaterperms.h"

+#include "llvieweroctree.h"

+#include "llviewerdisplay.h"

+#include "llviewerwindow.h"

+#include "llprogressview.h"

+#include "llcoros.h"

+#include "lleventcoro.h"

+#include "llcorehttputil.h"

+#include "llcallstack.h"

+#include "llsettingsdaycycle.h"

+

+#include <boost/regex.hpp>

+

+#ifdef LL_WINDOWS

+    #pragma warning(disable:4355)

+#endif

+

+// When we receive a base grant of capabilities that has a different number of

+// capabilities than the original base grant received for the region, print

+// out the two lists of capabilities for analysis.

+//#define DEBUG_CAPS_GRANTS

+

+// The server only keeps our pending agent info for 60 seconds.

+// We want to allow for seed cap retry, but its not useful after that 60 seconds.

+// Even though we gave up on login, keep trying for caps after we are logged in:

+const S32 MAX_CAP_REQUEST_ATTEMPTS = 30;

+const U32 DEFAULT_MAX_REGION_WIDE_PRIM_COUNT = 15000;

+

+bool LLViewerRegion::sVOCacheCullingEnabled = false;

+S32  LLViewerRegion::sLastCameraUpdated = 0;

+S32  LLViewerRegion::sNewObjectCreationThrottle = -1;

+LLViewerRegion::vocache_entry_map_t LLViewerRegion::sRegionCacheCleanup;

+

+typedef std::map<std::string, std::string> CapabilityMap;

+

+static void log_capabilities(const CapabilityMap &capmap);

+

+namespace

+{

+

+void newRegionEntry(LLViewerRegion& region)

+{

+    LL_INFOS("LLViewerRegion") << "Entering region [" << region.getName() << "]" << LL_ENDL;

+    gDebugInfo["CurrentRegion"] = region.getName();

+    LLAppViewer::instance()->writeDebugInfo();

+}

+

+} // anonymous namespace

+

+// support for secondlife:///app/region/{REGION} SLapps

+// N.B. this is defined to work exactly like the classic secondlife://{REGION}

+// However, the later syntax cannot support spaces in the region name because

+// spaces (and %20 chars) are illegal in the hostname of an http URL. Some

+// browsers let you get away with this, but some do not (such as Qt's Webkit).

+// Hence we introduced the newer secondlife:///app/region alternative.

+class LLRegionHandler : public LLCommandHandler

+{

+public:

+    // requests will be throttled from a non-trusted browser

+    LLRegionHandler() : LLCommandHandler("region", UNTRUSTED_THROTTLE) {}

+

+    bool handle(const LLSD& params, const LLSD& query_map, const std::string& grid, LLMediaCtrl* web)

+    {

+        // make sure that we at least have a region name

+        int num_params = params.size();

+        if (num_params < 1)

+        {

+            return false;

+        }

+

+        // build a secondlife://{PLACE} SLurl from this SLapp

+        std::string url = "secondlife://";

+        if (!grid.empty())

+        {

+            url += grid + "/secondlife/";

+        }

+        boost::regex name_rx("[A-Za-z0-9()_%]+");

+        boost::regex coord_rx("[0-9]+");

+        for (int i = 0; i < num_params; i++)

+        {

+            if (i > 0)

+            {

+                url += "/";

+            }

+            if (!boost::regex_match(params[i].asString(), i > 0 ? coord_rx : name_rx))

+            {

+                return false;

+            }

+

+            url += params[i].asString();

+        }

+

+        // Process the SLapp as if it was a secondlife://{PLACE} SLurl

+        LLURLDispatcher::dispatch(url, LLCommandHandler::NAV_TYPE_CLICKED, web, true);

+        return true;

+    }

+

+};

+LLRegionHandler gRegionHandler;

+

+

+class LLViewerRegionImpl

+{

+public:

+    LLViewerRegionImpl(LLViewerRegion * region, LLHost const & host):

+        mHost(host),

+        mCompositionp(NULL),

+        mEventPoll(NULL),

+        mSeedCapMaxAttempts(MAX_CAP_REQUEST_ATTEMPTS),

+        mSeedCapAttempts(0),

+        mHttpResponderID(0),

+        mLastCameraUpdate(0),

+        mLastCameraOrigin(),

+        mVOCachePartition(NULL),

+        mLandp(NULL)

+    {}

+

+    static void buildCapabilityNames(LLSD& capabilityNames);

+

+    // The surfaces and other layers

+    LLSurface*  mLandp;

+

+    // Region geometry data

+    LLVector3d  mOriginGlobal;  // Location of southwest corner of region (meters)

+    LLVector3d  mCenterGlobal;  // Location of center in world space (meters)

+    LLHost      mHost;

+

+    // The unique ID for this region.

+    LLUUID mRegionID;

+

+    // region/estate owner - usually null.

+    LLUUID mOwnerID;

+

+    // Network statistics for the region's circuit...

+    LLTimer mLastNetUpdate;

+

+    // Misc

+    LLVLComposition *mCompositionp;     // Composition layer for the surface

+

+    LLVOCacheEntry::vocache_entry_map_t   mCacheMap; //all cached entries

+    LLVOCacheEntry::vocache_entry_set_t   mActiveSet; //all active entries;

+    LLVOCacheEntry::vocache_entry_set_t   mWaitingSet; //entries waiting for LLDrawable to be generated.

+    std::set< LLPointer<LLViewerOctreeGroup> >      mVisibleGroups; //visible groupa

+    LLVOCachePartition*                   mVOCachePartition;

+    LLVOCacheEntry::vocache_entry_set_t   mVisibleEntries; //must-be-created visible entries wait for objects creation.

+    LLVOCacheEntry::vocache_entry_priority_list_t mWaitingList; //transient list storing sorted visible entries waiting for object creation.

+    std::set<U32>                          mNonCacheableCreatedList; //list of local ids of all non-cacheable objects

+    LLVOCacheEntry::vocache_gltf_overrides_map_t mGLTFOverridesLLSD; // for materials

+

+    // time?

+    // LRU info?

+

+    // Cache ID is unique per-region, across renames, moving locations,

+    // etc.

+    LLUUID mCacheID;

+

+    CapabilityMap mCapabilities;

+    CapabilityMap mSecondCapabilitiesTracker;

+

+    LLEventPoll* mEventPoll;

+

+    S32 mSeedCapMaxAttempts;

+    S32 mSeedCapAttempts;

+

+    S32 mHttpResponderID;

+

+    //spatial partitions for objects in this region

+    std::vector<LLViewerOctreePartition*> mObjectPartition;

+

+    LLVector3   mLastCameraOrigin;

+    U32         mLastCameraUpdate;

+

+    static void        requestBaseCapabilitiesCoro(U64 regionHandle);

+    static void        requestBaseCapabilitiesCompleteCoro(U64 regionHandle);

+    static void        requestSimulatorFeatureCoro(std::string url, U64 regionHandle);

+};

+

+void LLViewerRegionImpl::requestBaseCapabilitiesCoro(U64 regionHandle)

+{

+    LLCore::HttpRequest::policy_t httpPolicy(LLCore::HttpRequest::DEFAULT_POLICY_ID);

+    LLCoreHttpUtil::HttpCoroutineAdapter::ptr_t

+        httpAdapter(new LLCoreHttpUtil::HttpCoroutineAdapter("BaseCapabilitiesRequest", httpPolicy));

+    LLCore::HttpRequest::ptr_t httpRequest(new LLCore::HttpRequest);

+

+    LLSD result;

+    LLViewerRegion *regionp = NULL;

+

+    // This loop is used for retrying a capabilities request.

+    do

+    {

+        if (STATE_WORLD_INIT > LLStartUp::getStartupState())

+        {

+            LL_INFOS("AppInit", "Capabilities") << "Aborting capabilities request, reason: returned to login screen" << LL_ENDL;

+            return;

+        }

+

+        if (!LLWorld::instanceExists())

+        {

+            LL_WARNS("AppInit", "Capabilities") << "Attempting to get capabilities, but world no longer exists!" << LL_ENDL;

+            return;

+        }

+

+        regionp = LLWorld::getInstance()->getRegionFromHandle(regionHandle);

+        if (!regionp) //region was removed

+        {

+            LL_WARNS("AppInit", "Capabilities") << "Attempting to get capabilities for region that no longer exists!" << LL_ENDL;

+            return; // this error condition is not recoverable.

+        }

+        LLViewerRegionImpl* impl = regionp->getRegionImplNC();

+        LL_DEBUGS("AppInit", "Capabilities") << "requesting seed caps for handle " << regionHandle

+                                             << " name " << regionp->getName() << LL_ENDL;

+

+        std::string url = regionp->getCapability("Seed");

+        if (url.empty())

+        {

+            LL_WARNS("AppInit", "Capabilities") << "Failed to get seed capabilities, and can not determine url!" << LL_ENDL;

+            regionp->setCapabilitiesError();

+            return; // this error condition is not recoverable.

+        }

+

+        // record that we just entered a new region

+        newRegionEntry(*regionp);

+

+        if (impl->mSeedCapAttempts > impl->mSeedCapMaxAttempts)

+        {

+            // *TODO: Give a user pop-up about this error?

+            LL_WARNS("AppInit", "Capabilities") << "Failed to get seed capabilities from '" << url << "' after " << impl->mSeedCapAttempts << " attempts.  Giving up!" << LL_ENDL;

+            return;  // this error condition is not recoverable.

+        }

+

+        S32 id = ++(impl->mHttpResponderID);

+

+        LLSD capabilityNames = LLSD::emptyArray();

+        impl->buildCapabilityNames(capabilityNames);

+

+        LL_INFOS("AppInit", "Capabilities") << "Requesting seed from " << url

+                                            << " region name " << regionp->getName()

+                                            << " region id " << regionp->getRegionID()

+                                            << " handle " << regionp->getHandle()

+                                            << " (attempt #" << impl->mSeedCapAttempts + 1 << ")" << LL_ENDL;

+        LL_DEBUGS("AppInit", "Capabilities") << "Capabilities requested: " << capabilityNames << LL_ENDL;

+

+        regionp = NULL;

+        impl = NULL;

+        result = httpAdapter->postAndSuspend(httpRequest, url, capabilityNames);

+

+        if (STATE_WORLD_INIT > LLStartUp::getStartupState())

+        {

+            LL_INFOS("AppInit", "Capabilities") << "Aborting capabilities request, reason: returned to login screen" << LL_ENDL;

+            return;

+        }

+

+        if (LLApp::isExiting() || gDisconnected)

+        {

+            LL_DEBUGS("AppInit", "Capabilities") << "Shutting down" << LL_ENDL;

+            return;

+        }

+

+        if (!LLWorld::instanceExists())

+        {

+            LL_WARNS("AppInit", "Capabilities") << "Received capabilities, but world no longer exists!" << LL_ENDL;

+            return;

+        }

+

+        regionp = LLWorld::getInstance()->getRegionFromHandle(regionHandle);

+        if (!regionp) //region was removed

+        {

+            LL_WARNS("AppInit", "Capabilities") << "Received capabilities for region that no longer exists!" << LL_ENDL;

+            return; // this error condition is not recoverable.

+        }

+

+        impl = regionp->getRegionImplNC();

+

+        ++(impl->mSeedCapAttempts);

+

+        if (!result.isMap() || result.has("error"))

+        {

+            LL_WARNS("AppInit", "Capabilities") << "Malformed response" << LL_ENDL;

+            // setup for retry.

+            continue;

+        }

+

+        LLSD httpResults = result["http_result"];

+        LLCore::HttpStatus status = LLCoreHttpUtil::HttpCoroutineAdapter::getStatusFromLLSD(httpResults);

+        if (!status)

+        {

+            LL_WARNS("AppInit", "Capabilities") << "HttpStatus error " << LL_ENDL;

+            // setup for retry.

+            continue;

+        }

+

+        // remove the http_result from the llsd

+        result.erase("http_result");

+

+        if (id != impl->mHttpResponderID) // region is no longer referring to this request

+        {

+            LL_WARNS("AppInit", "Capabilities") << "Received results for a stale capabilities request!" << LL_ENDL;

+            // setup for retry.

+            continue;

+        }

+

+        LLSD::map_const_iterator iter;

+        for (iter = result.beginMap(); iter != result.endMap(); ++iter)

+        {

+            regionp->setCapability(iter->first, iter->second);

+

+            LL_DEBUGS("AppInit", "Capabilities")

+                << "Capability '" << iter->first << "' is '" << iter->second << "'" << LL_ENDL;

+        }

+

+#if 0

+        log_capabilities(mCapabilities);

+#endif

+

+        LL_DEBUGS("AppInit", "Capabilities", "Teleport") << "received caps for handle " << regionHandle

+                                                         << " region name " << regionp->getName() << LL_ENDL;

+        regionp->setCapabilitiesReceived(true);

+

+        break;

+    }

+    while (true);

+

+    if (regionp && regionp->isCapabilityAvailable("ServerReleaseNotes") &&

+            regionp->getReleaseNotesRequested())

+    {   // *HACK: we're waiting for the ServerReleaseNotes

+        regionp->showReleaseNotes();

+    }

+}

+

+

+void LLViewerRegionImpl::requestBaseCapabilitiesCompleteCoro(U64 regionHandle)

+{

+    LLCore::HttpRequest::policy_t httpPolicy(LLCore::HttpRequest::DEFAULT_POLICY_ID);

+    LLCoreHttpUtil::HttpCoroutineAdapter::ptr_t

+        httpAdapter(new LLCoreHttpUtil::HttpCoroutineAdapter("BaseCapabilitiesRequest", httpPolicy));

+    LLCore::HttpRequest::ptr_t httpRequest(new LLCore::HttpRequest);

+

+    LLSD result;

+    LLViewerRegion *regionp = NULL;

+

+    // This loop is used for retrying a capabilities request.

+    do

+    {

+        LLWorld *world_inst = LLWorld::getInstance(); // Not a singleton!

+        if (!world_inst)

+        {

+            LL_WARNS("AppInit", "Capabilities") << "Attempting to get capabilities, but world no longer exists!" << LL_ENDL;

+            return;

+        }

+

+        regionp = world_inst->getRegionFromHandle(regionHandle);

+        if (!regionp) //region was removed

+        {

+            LL_WARNS("AppInit", "Capabilities") << "Attempting to get capabilities for region that no longer exists!" << LL_ENDL;

+            break; // this error condition is not recoverable.

+        }

+

+        std::string url = regionp->getCapabilityDebug("Seed");

+        if (url.empty())

+        {

+            LL_WARNS("AppInit", "Capabilities") << "Failed to get seed capabilities, and can not determine url!" << LL_ENDL;

+            if (regionp->getCapability("Seed").empty())

+            {

+                // initial attempt failed to get this cap as well

+                regionp->setCapabilitiesError();

+            }

+            break; // this error condition is not recoverable.

+        }

+

+        // record that we just entered a new region

+        newRegionEntry(*regionp);

+

+        LLSD capabilityNames = LLSD::emptyArray();

+        buildCapabilityNames(capabilityNames);

+

+        LL_INFOS("AppInit", "Capabilities") << "Requesting second Seed from " << url << " for region " << regionp->getRegionID() << LL_ENDL;

+

+        regionp = NULL;

+        world_inst = NULL;

+        result = httpAdapter->postAndSuspend(httpRequest, url, capabilityNames);

+

+        LLSD httpResults = result["http_result"];

+        LLCore::HttpStatus status = LLCoreHttpUtil::HttpCoroutineAdapter::getStatusFromLLSD(httpResults);

+        if (!status)

+        {

+            LL_WARNS("AppInit", "Capabilities") << "HttpStatus error " << LL_ENDL;

+            break;  // no retry

+        }

+

+        if (LLApp::isExiting() || gDisconnected)

+        {

+            break;

+        }

+

+        world_inst = LLWorld::getInstance();

+        if (!world_inst)

+        {

+            LL_WARNS("AppInit", "Capabilities") << "Received capabilities, but world no longer exists!" << LL_ENDL;

+            return;

+        }

+

+        regionp = world_inst->getRegionFromHandle(regionHandle);

+        if (!regionp) //region was removed

+        {

+            LL_WARNS("AppInit", "Capabilities") << "Received capabilities for region that no longer exists!" << LL_ENDL;

+            break; // this error condition is not recoverable.

+        }

+        LLViewerRegionImpl* impl = regionp->getRegionImplNC();

+

+        // remove the http_result from the llsd

+        result.erase("http_result");

+

+        LLSD::map_const_iterator iter;

+        for (iter = result.beginMap(); iter != result.endMap(); ++iter)

+        {

+            regionp->setCapabilityDebug(iter->first, iter->second);

+            //LL_INFOS()<<"BaseCapabilitiesCompleteTracker New Caps "<<iter->first<<" "<< iter->second<<LL_ENDL;

+        }

+

+#if 0

+        log_capabilities(impl->mCapabilities);

+#endif

+

+        if (impl->mCapabilities.size() != impl->mSecondCapabilitiesTracker.size())

+        {

+            LL_WARNS("AppInit", "Capabilities")

+                << "Sim sent duplicate base caps that differ in size from what we initially received - most likely content. "

+                << "mCapabilities == " << impl->mCapabilities.size()

+                << " mSecondCapabilitiesTracker == " << impl->mSecondCapabilitiesTracker.size()

+                << LL_ENDL;

+#ifdef DEBUG_CAPS_GRANTS

+            LL_WARNS("AppInit", "Capabilities")

+                << "Initial Base capabilities: " << LL_ENDL;

+

+            log_capabilities(impl->mCapabilities);

+

+            LL_WARNS("AppInit", "Capabilities")

+                << "Latest base capabilities: " << LL_ENDL;

+

+            log_capabilities(impl->mSecondCapabilitiesTracker);

+

+#endif

+

+            if (impl->mSecondCapabilitiesTracker.size() > impl->mCapabilities.size())

+            {

+                // *HACK Since we were granted more base capabilities in this grant request than the initial, replace

+                // the old with the new. This shouldn't happen i.e. we should always get the same capabilities from a

+                // sim. The simulator fix from SH-3895 should prevent it from happening, at least in the case of the

+                // inventory api capability grants.

+

+                // Need to clear a std::map before copying into it because old keys take precedence.

+                impl->mCapabilities.clear();

+                impl->mCapabilities = impl->mSecondCapabilitiesTracker;

+            }

+        }

+        else

+        {

+            LL_DEBUGS("CrossingCaps") << "Sim sent multiple base cap grants with matching sizes." << LL_ENDL;

+        }

+        impl->mSecondCapabilitiesTracker.clear();

+    }

+    while (false);

+}

+

+void LLViewerRegionImpl::requestSimulatorFeatureCoro(std::string url, U64 regionHandle)

+{

+    LLCore::HttpRequest::policy_t httpPolicy(LLCore::HttpRequest::DEFAULT_POLICY_ID);

+    LLCoreHttpUtil::HttpCoroutineAdapter::ptr_t

+        httpAdapter(new LLCoreHttpUtil::HttpCoroutineAdapter("BaseCapabilitiesRequest", httpPolicy));

+    LLCore::HttpRequest::ptr_t httpRequest(new LLCore::HttpRequest);

+

+    LLViewerRegion *regionp = NULL;

+    S32 attemptNumber = 0;

+    // This loop is used for retrying a capabilities request.

+    do

+    {

+        ++attemptNumber;

+

+        if (attemptNumber > MAX_CAP_REQUEST_ATTEMPTS)

+        {

+            LL_WARNS("AppInit", "SimulatorFeatures") << "Retries count exceeded attempting to get Simulator feature from "

+                << url << LL_ENDL;

+            break;

+        }

+

+        LLWorld *world_inst = LLWorld::getInstance(); // Not a singleton!

+        if (!world_inst)

+        {

+            LL_WARNS("AppInit", "Capabilities") << "Attempting to request Sim Feature, but world no longer exists!" << LL_ENDL;

+            return;

+        }

+

+        regionp = world_inst->getRegionFromHandle(regionHandle);

+        if (!regionp) //region was removed

+        {

+            LL_WARNS("AppInit", "SimulatorFeatures") << "Attempting to request Sim Feature for region that no longer exists!" << LL_ENDL;

+            break; // this error condition is not recoverable.

+        }

+

+        regionp = NULL;

+        world_inst = NULL;

+        LLSD result = httpAdapter->getAndSuspend(httpRequest, url);

+

+        LLSD httpResults = result["http_result"];

+        LLCore::HttpStatus status = LLCoreHttpUtil::HttpCoroutineAdapter::getStatusFromLLSD(httpResults);

+        if (!status)

+        {

+            LL_WARNS("AppInit", "SimulatorFeatures") << "HttpStatus error retrying" << LL_ENDL;

+            continue;

+        }

+

+        if (LLApp::isExiting() || gDisconnected)

+        {

+            break;

+        }

+

+        // remove the http_result from the llsd

+        result.erase("http_result");

+

+        world_inst = LLWorld::getInstance();

+        if (!world_inst)

+        {

+            LL_WARNS("AppInit", "Capabilities") << "Attempting to request Sim Feature, but world no longer exists!" << LL_ENDL;

+            return;

+        }

+

+        regionp = world_inst->getRegionFromHandle(regionHandle);

+        if (!regionp) //region was removed

+        {

+            LL_WARNS("AppInit", "SimulatorFeatures") << "Attempting to set Sim Feature for region that no longer exists!" << LL_ENDL;

+            break; // this error condition is not recoverable.

+        }

+

+        regionp->setSimulatorFeatures(result);

+

+        break;

+    }

+    while (true);

+

+}

+

+LLViewerRegion::LLViewerRegion(const U64 &handle,

+                               const LLHost &host,

+                               const U32 grids_per_region_edge,

+                               const U32 grids_per_patch_edge,

+                               const F32 region_width_meters)

+:   mImpl(new LLViewerRegionImpl(this, host)),

+    mHandle(handle),

+    mTimeDilation(1.0f),

+    mName(""),

+    mZoning(""),

+    mIsEstateManager(false),

+    mRegionFlags( REGION_FLAGS_DEFAULT ),

+    mRegionProtocols( 0 ),

+    mSimAccess( SIM_ACCESS_MIN ),

+    mBillableFactor(1.0),

+    mMaxTasks(DEFAULT_MAX_REGION_WIDE_PRIM_COUNT),

+    mCentralBakeVersion(1),

+    mClassID(0),

+    mCPURatio(0),

+    mColoName("unknown"),

+    mProductSKU("unknown"),

+    mProductName("unknown"),

+    mViewerAssetUrl(""),

+    mCacheLoaded(false),

+    mCacheDirty(false),

+    mReleaseNotesRequested(false),

+    mCapabilitiesState(CAPABILITIES_STATE_INIT),

+    mSimulatorFeaturesReceived(false),

+    mBitsReceived(0.f),

+    mPacketsReceived(0.f),

+    mDead(false),

+    mLastVisitedEntry(NULL),

+    mInvisibilityCheckHistory(-1),

+    mPaused(false),

+    mRegionCacheHitCount(0),

+    mRegionCacheMissCount(0),

+    mInterestListMode(IL_MODE_DEFAULT)

+{

+    mWidth = region_width_meters;

+    mImpl->mOriginGlobal = from_region_handle(handle);

+    updateRenderMatrix();

+

+    mImpl->mLandp = new LLSurface('l', NULL);

+

+    // Create the composition layer for the surface

+    mImpl->mCompositionp =

+        new LLVLComposition(mImpl->mLandp,

+                            grids_per_region_edge,

+                            region_width_meters / grids_per_region_edge);

+    mImpl->mCompositionp->setSurface(mImpl->mLandp);

+

+    // Create the surfaces

+    mImpl->mLandp->setRegion(this);

+    mImpl->mLandp->create(grids_per_region_edge,

+                    grids_per_patch_edge,

+                    mImpl->mOriginGlobal,

+                    mWidth);

+

+    mParcelOverlay = new LLViewerParcelOverlay(this, region_width_meters);

+

+    setOriginGlobal(from_region_handle(handle));

+    calculateCenterGlobal();

+

+    // Create the object lists

+    initStats();

+

+    //create object partitions

+    //MUST MATCH declaration of eObjectPartitions

+    mImpl->mObjectPartition.push_back(new LLHUDPartition(this));        //PARTITION_HUD

+    mImpl->mObjectPartition.push_back(new LLTerrainPartition(this));    //PARTITION_TERRAIN

+    mImpl->mObjectPartition.push_back(new LLVoidWaterPartition(this));  //PARTITION_VOIDWATER

+    mImpl->mObjectPartition.push_back(new LLWaterPartition(this));      //PARTITION_WATER

+    mImpl->mObjectPartition.push_back(new LLTreePartition(this));       //PARTITION_TREE

+    mImpl->mObjectPartition.push_back(new LLParticlePartition(this));   //PARTITION_PARTICLE

+    mImpl->mObjectPartition.push_back(new LLGrassPartition(this));      //PARTITION_GRASS

+    mImpl->mObjectPartition.push_back(new LLVolumePartition(this)); //PARTITION_VOLUME

+    mImpl->mObjectPartition.push_back(new LLBridgePartition(this)); //PARTITION_BRIDGE

+    mImpl->mObjectPartition.push_back(new LLAvatarPartition(this)); //PARTITION_AVATAR

+    mImpl->mObjectPartition.push_back(new LLControlAVPartition(this));  //PARTITION_CONTROL_AV

+    mImpl->mObjectPartition.push_back(new LLHUDParticlePartition(this));//PARTITION_HUD_PARTICLE

+    mImpl->mObjectPartition.push_back(new LLVOCachePartition(this)); //PARTITION_VO_CACHE

+    mImpl->mObjectPartition.push_back(NULL);                    //PARTITION_NONE

+    mImpl->mVOCachePartition = getVOCachePartition();

+

+    setCapabilitiesReceivedCallback(boost::bind(&LLAvatarRenderInfoAccountant::scanNewRegion, _1));

+}

+

+

+void LLViewerRegion::initStats()

+{

+    mImpl->mLastNetUpdate.reset();

+    mPacketsIn = 0;

+    mBitsIn = (U32Bits)0;

+    mLastBitsIn = (U32Bits)0;

+    mLastPacketsIn = 0;

+    mPacketsOut = 0;

+    mLastPacketsOut = 0;

+    mPacketsLost = 0;

+    mLastPacketsLost = 0;

+    mPingDelay = (U32Seconds)0;

+    mAlive = false;                 // can become false if circuit disconnects

+}

+

+static LLTrace::BlockTimerStatHandle FTM_CLEANUP_REGION_OBJECTS("Cleanup Region Objects");

+static LLTrace::BlockTimerStatHandle FTM_SAVE_REGION_CACHE("Save Region Cache");

+

+LLViewerRegion::~LLViewerRegion()

+{

+    LL_PROFILE_ZONE_SCOPED;

+    mDead = true;

+    mImpl->mActiveSet.clear();

+    mImpl->mVisibleEntries.clear();

+    mImpl->mVisibleGroups.clear();

+    mImpl->mWaitingSet.clear();

+

+    gVLManager.cleanupData(this);

+    // Can't do this on destruction, because the neighbor pointers might be invalid.

+    // This should be reference counted...

+    disconnectAllNeighbors();

+    LLViewerPartSim::getInstance()->cleanupRegion(this);

+

+    {

+        LL_RECORD_BLOCK_TIME(FTM_CLEANUP_REGION_OBJECTS);

+        gObjectList.killObjects(this);

+    }

+

+    delete mImpl->mCompositionp;

+    delete mParcelOverlay;

+    delete mImpl->mLandp;

+    delete mImpl->mEventPoll;

+#if 0

+    LLHTTPSender::clearSender(mImpl->mHost);

+#endif

+    std::for_each(mImpl->mObjectPartition.begin(), mImpl->mObjectPartition.end(), DeletePointer());

+

+    {

+        LL_RECORD_BLOCK_TIME(FTM_SAVE_REGION_CACHE);

+        saveObjectCache();

+    }

+

+    delete mImpl;

+    mImpl = NULL;

+}

+

+/*virtual*/

+const LLHost&   LLViewerRegion::getHost() const

+{

+    return mImpl->mHost;

+}

+

+LLSurface & LLViewerRegion::getLand() const

+{

+    return *mImpl->mLandp;

+}

+

+const LLUUID& LLViewerRegion::getRegionID() const

+{

+    return mImpl->mRegionID;

+}

+

+void LLViewerRegion::setRegionID(const LLUUID& region_id)

+{

+    mImpl->mRegionID = region_id;

+}

+

+void LLViewerRegion::loadObjectCache()

+{

+    if (mCacheLoaded)

+    {

+        return;

+    }

+

+    // Presume success.  If it fails, we don't want to try again.

+    mCacheLoaded = true;

+

+    if(LLVOCache::instanceExists())

+    {

+        LLVOCache & vocache = LLVOCache::instance();

+        vocache.readFromCache(mHandle, mImpl->mCacheID, mImpl->mCacheMap);

+        vocache.readGenericExtrasFromCache(mHandle, mImpl->mCacheID, mImpl->mGLTFOverridesLLSD);

+

+        if (mImpl->mCacheMap.empty())

+        {

+            mCacheDirty = true;

+        }

+    }

+}

+

+

+void LLViewerRegion::saveObjectCache()

+{

+    if (!mCacheLoaded)

+    {

+        return;

+    }

+

+    if (mImpl->mCacheMap.empty())

+    {

+        return;

+    }

+

+    if(LLVOCache::instanceExists())

+    {

+        const F32 start_time_threshold = 600.0f; //seconds

+        bool removal_enabled = sVOCacheCullingEnabled && (mRegionTimer.getElapsedTimeF32() > start_time_threshold); //allow to remove invalid objects from object cache file.

+

+        LLVOCache & instance = LLVOCache::instance();

+

+        instance.writeToCache(mHandle, mImpl->mCacheID, mImpl->mCacheMap, mCacheDirty, removal_enabled);

+        instance.writeGenericExtrasToCache(mHandle, mImpl->mCacheID, mImpl->mGLTFOverridesLLSD, mCacheDirty, removal_enabled);

+        mCacheDirty = false;

+    }

+

+    if (LLAppViewer::instance()->isQuitting())

+    {

+        mImpl->mCacheMap.clear();

+    }

+    else

+    {

+        // Map of LLVOCacheEntry takes time to release, store map for cleanup on idle

+        sRegionCacheCleanup.insert(mImpl->mCacheMap.begin(), mImpl->mCacheMap.end());

+        mImpl->mCacheMap.clear();

+        // TODO - probably need to do the same for overrides cache

+    }

+}

+

+void LLViewerRegion::sendMessage()

+{

+    gMessageSystem->sendMessage(mImpl->mHost);

+}

+

+void LLViewerRegion::sendReliableMessage()

+{

+    gMessageSystem->sendReliable(mImpl->mHost);

+}

+

+void LLViewerRegion::setWaterHeight(F32 water_level)

+{

+    mImpl->mLandp->setWaterHeight(water_level);

+}

+

+F32 LLViewerRegion::getWaterHeight() const

+{

+    return mImpl->mLandp->getWaterHeight();

+}

+

+bool LLViewerRegion::isVoiceEnabled() const

+{

+    return getRegionFlag(REGION_FLAGS_ALLOW_VOICE);

+}

+

+void LLViewerRegion::setRegionFlags(U64 flags)

+{

+    mRegionFlags = flags;

+}

+

+

+void LLViewerRegion::setOriginGlobal(const LLVector3d &origin_global)

+{

+    mImpl->mOriginGlobal = origin_global;

+    updateRenderMatrix();

+    mImpl->mLandp->setOriginGlobal(origin_global);

+    mWind.setOriginGlobal(origin_global);

+    calculateCenterGlobal();

+}

+

+void LLViewerRegion::updateRenderMatrix()

+{

+    mRenderMatrix.setTranslation(getOriginAgent());

+}

+

+void LLViewerRegion::setTimeDilation(F32 time_dilation)

+{

+    mTimeDilation = time_dilation;

+}

+

+const LLVector3d & LLViewerRegion::getOriginGlobal() const

+{

+    return mImpl->mOriginGlobal;

+}

+

+LLVector3 LLViewerRegion::getOriginAgent() const

+{

+    return gAgent.getPosAgentFromGlobal(mImpl->mOriginGlobal);

+}

+

+const LLVector3d & LLViewerRegion::getCenterGlobal() const

+{

+    return mImpl->mCenterGlobal;

+}

+

+LLVector3 LLViewerRegion::getCenterAgent() const

+{

+    return gAgent.getPosAgentFromGlobal(mImpl->mCenterGlobal);

+}

+

+void LLViewerRegion::setOwner(const LLUUID& owner_id)

+{

+    mImpl->mOwnerID = owner_id;

+}

+

+const LLUUID& LLViewerRegion::getOwner() const

+{

+    return mImpl->mOwnerID;

+}

+

+void LLViewerRegion::setRegionNameAndZone   (const std::string& name_zone)

+{

+    std::string::size_type pipe_pos = name_zone.find('|');

+    S32 length   = name_zone.size();

+    if (pipe_pos != std::string::npos)

+    {

+        mName   = name_zone.substr(0, pipe_pos);

+        mZoning = name_zone.substr(pipe_pos+1, length-(pipe_pos+1));

+    }

+    else

+    {

+        mName   = name_zone;

+        mZoning = "";

+    }

+

+    LLStringUtil::stripNonprintable(mName);

+    LLStringUtil::stripNonprintable(mZoning);

+}

+

+bool LLViewerRegion::canManageEstate() const

+{

+    return gAgent.isGodlike()

+        || isEstateManager()

+        || gAgent.getID() == getOwner();

+}

+

+const std::string LLViewerRegion::getSimAccessString() const

+{

+    return accessToString(mSimAccess);

+}

+

+std::string LLViewerRegion::getLocalizedSimProductName() const

+{

+    std::string localized_spn;

+    return LLTrans::findString(localized_spn, mProductName) ? localized_spn : mProductName;

+}

+

+// static

+std::string LLViewerRegion::regionFlagsToString(U64 flags)

+{

+    std::string result;

+

+    if (flags & REGION_FLAGS_SANDBOX)

+    {

+        result += "Sandbox";

+    }

+

+    if (flags & REGION_FLAGS_ALLOW_DAMAGE)

+    {

+        result += " Not Safe";

+    }

+

+    return result;

+}

+

+// static

+std::string LLViewerRegion::accessToString(U8 sim_access)

+{

+    switch(sim_access)

+    {

+    case SIM_ACCESS_PG:

+        return LLTrans::getString("SIM_ACCESS_PG");

+

+    case SIM_ACCESS_MATURE:

+        return LLTrans::getString("SIM_ACCESS_MATURE");

+

+    case SIM_ACCESS_ADULT:

+        return LLTrans::getString("SIM_ACCESS_ADULT");

+

+    case SIM_ACCESS_DOWN:

+        return LLTrans::getString("SIM_ACCESS_DOWN");

+

+    case SIM_ACCESS_MIN:

+    default:

+        return LLTrans::getString("SIM_ACCESS_MIN");

+    }

+}

+

+// static

+std::string LLViewerRegion::getAccessIcon(U8 sim_access)

+{

+    switch(sim_access)

+    {

+    case SIM_ACCESS_MATURE:

+        return "Parcel_M_Dark";

+

+    case SIM_ACCESS_ADULT:

+        return "Parcel_R_Light";

+

+    case SIM_ACCESS_PG:

+        return "Parcel_PG_Light";

+

+    case SIM_ACCESS_MIN:

+    default:

+        return "";

+    }

+}

+

+// static

+std::string LLViewerRegion::accessToShortString(U8 sim_access)

+{

+    switch(sim_access)      /* Flawfinder: ignore */

+    {

+    case SIM_ACCESS_PG:

+        return "PG";

+

+    case SIM_ACCESS_MATURE:

+        return "M";

+

+    case SIM_ACCESS_ADULT:

+        return "A";

+

+    case SIM_ACCESS_MIN:

+    default:

+        return "U";

+    }

+}

+

+// static

+U8 LLViewerRegion::shortStringToAccess(const std::string &sim_access)

+{

+    U8 accessValue;

+

+    if (LLStringUtil::compareStrings(sim_access, "PG") == 0)

+    {

+        accessValue = SIM_ACCESS_PG;

+    }

+    else if (LLStringUtil::compareStrings(sim_access, "M") == 0)

+    {

+        accessValue = SIM_ACCESS_MATURE;

+    }

+    else if (LLStringUtil::compareStrings(sim_access, "A") == 0)

+    {

+        accessValue = SIM_ACCESS_ADULT;

+    }

+    else

+    {

+        accessValue = SIM_ACCESS_MIN;

+    }

+

+    return accessValue;

+}

+

+// static

+void LLViewerRegion::processRegionInfo(LLMessageSystem* msg, void**)

+{

+    // send it to 'observers'

+    // *TODO: switch the floaters to using LLRegionInfoModel

+    LL_INFOS() << "Processing region info" << LL_ENDL;

+    LLRegionInfoModel::instance().update(msg);

+    LLFloaterGodTools::processRegionInfo(msg);

+    LLFloaterRegionInfo::processRegionInfo(msg);

+}

+

+void LLViewerRegion::setCacheID(const LLUUID& id)

+{

+    mImpl->mCacheID = id;

+}

+

+void LLViewerRegion::renderPropertyLines()

+{

+    if (mParcelOverlay)

+    {

+        mParcelOverlay->renderPropertyLines();

+    }

+}

+

+void LLViewerRegion::renderPropertyLinesOnMinimap(F32 scale_pixels_per_meter, const F32 *parcel_outline_color)

+{

+    if (mParcelOverlay)

+    {

+        mParcelOverlay->renderPropertyLinesOnMinimap(scale_pixels_per_meter, parcel_outline_color);

+    }

+}

+

+

+// This gets called when the height field changes.

+void LLViewerRegion::dirtyHeights()

+{

+    // Property lines need to be reconstructed when the land changes.

+    if (mParcelOverlay)

+    {

+        mParcelOverlay->setDirty();

+    }

+}

+

+//physically delete the cache entry

+void LLViewerRegion::killCacheEntry(LLVOCacheEntry* entry, bool for_rendering)

+{

+    if(!entry || !entry->isValid())

+    {

+        return;

+    }

+

+    if(for_rendering && !entry->isState(LLVOCacheEntry::ACTIVE))

+    {

+        addNewObject(entry); //force to add to rendering pipeline

+    }

+

+    //remove from active list and waiting list

+    if(entry->isState(LLVOCacheEntry::ACTIVE))

+    {

+        mImpl->mActiveSet.erase(entry);

+    }

+    else

+    {

+        if(entry->isState(LLVOCacheEntry::WAITING))

+        {

+            mImpl->mWaitingSet.erase(entry);

+        }

+

+        //remove from mVOCachePartition

+        removeFromVOCacheTree(entry);

+    }

+

+    //remove from the forced visible list

+    mImpl->mVisibleEntries.erase(entry);

+

+    //disconnect from parent if it is a child

+    if(entry->getParentID() > 0)

+    {

+        LLVOCacheEntry* parent = getCacheEntry(entry->getParentID());

+        if(parent)

+        {

+            parent->removeChild(entry);

+        }

+    }

+    else if(entry->getNumOfChildren() > 0)//remove children from cache if has any

+    {

+        LLVOCacheEntry* child = entry->getChild();

+        while(child != NULL)

+        {

+            killCacheEntry(child, for_rendering);

+            child = entry->getChild();

+        }

+    }

+

+    //will remove it from the object cache, real deletion

+    entry->setState(LLVOCacheEntry::INACTIVE);

+    entry->removeOctreeEntry();

+    entry->setValid(false);

+

+    // TODO kill extras/material overrides cache too

+}

+

+//physically delete the cache entry

+void LLViewerRegion::killCacheEntry(U32 local_id)

+{

+    killCacheEntry(getCacheEntry(local_id));

+}

+

+U32 LLViewerRegion::getNumOfActiveCachedObjects() const

+{

+    return  mImpl->mActiveSet.size();

+}

+

+void LLViewerRegion::addActiveCacheEntry(LLVOCacheEntry* entry)

+{

+    if(!entry || mDead)

+    {

+        return;

+    }

+    if(entry->isState(LLVOCacheEntry::ACTIVE))

+    {

+        return; //already inserted.

+    }

+

+    if(entry->isState(LLVOCacheEntry::WAITING))

+    {

+        mImpl->mWaitingSet.erase(entry);

+    }

+

+    entry->setState(LLVOCacheEntry::ACTIVE);

+    entry->setVisible();

+

+    llassert(entry->getEntry()->hasDrawable());

+    mImpl->mActiveSet.insert(entry);

+}

+

+void LLViewerRegion::removeActiveCacheEntry(LLVOCacheEntry* entry, LLDrawable* drawablep)

+{

+    if(mDead || !entry || !entry->isValid())

+    {

+        return;

+    }

+    if(!entry->isState(LLVOCacheEntry::ACTIVE))

+    {

+        return; //not an active entry.

+    }

+

+    //shift to the local regional space from agent space

+    if(drawablep != NULL && drawablep->getVObj().notNull())

+    {

+        const LLVector3& pos = drawablep->getVObj()->getPositionRegion();

+        LLVector4a shift;

+        shift.load3(pos.mV);

+        shift.sub(entry->getPositionGroup());

+        entry->shift(shift);

+    }

+

+    if(entry->getParentID() > 0) //is a child

+    {

+        LLVOCacheEntry* parent = getCacheEntry(entry->getParentID());

+        if(parent)

+        {

+            parent->addChild(entry);

+        }

+        else //parent not in cache.

+        {

+            //this happens only when parent is not cacheable.

+            mOrphanMap[entry->getParentID()].push_back(entry->getLocalID());

+        }

+    }

+    else //insert to vo cache tree.

+    {

+        entry->updateParentBoundingInfo();

+        entry->saveBoundingSphere();

+        addToVOCacheTree(entry);

+    }

+

+    mImpl->mVisibleEntries.erase(entry);

+    mImpl->mActiveSet.erase(entry);

+    mImpl->mWaitingSet.erase(entry);

+    entry->setState(LLVOCacheEntry::INACTIVE);

+}

+

+bool LLViewerRegion::addVisibleGroup(LLViewerOctreeGroup* group)

+{

+    if(mDead || group->isEmpty())

+    {

+        return false;

+    }

+

+    mImpl->mVisibleGroups.insert(group);

+

+    return true;

+}

+

+U32 LLViewerRegion::getNumOfVisibleGroups() const

+{

+    return mImpl ? mImpl->mVisibleGroups.size() : 0;

+}

+

+void LLViewerRegion::updateReflectionProbes()

+{

+    LL_PROFILE_ZONE_SCOPED_CATEGORY_DISPLAY;

+    const F32 probe_spacing = 32.f;

+    const F32 probe_radius = sqrtf((probe_spacing * 0.5f) * (probe_spacing * 0.5f) * 3.f);

+    const F32 hover_height = 2.f;

+

+    F32 start = probe_spacing * 0.5f;

+

+    U32 grid_width = REGION_WIDTH_METERS / probe_spacing;

+

+    mReflectionMaps.resize(grid_width * grid_width);

+

+    F32 water_height = getWaterHeight();

+    LLVector3 origin = getOriginAgent();

+

+    for (U32 i = 0; i < grid_width; ++i)

+    {

+        F32 x = i * probe_spacing + start;

+        for (U32 j = 0; j < grid_width; ++j)

+        {

+            F32 y = j * probe_spacing + start;

+

+            U32 idx = i * grid_width + j;

+

+            if (mReflectionMaps[idx].isNull())

+            {

+                mReflectionMaps[idx] = gPipeline.mReflectionMapManager.addProbe();

+            }

+

+            LLVector3 probe_origin = LLVector3(x, y, llmax(water_height, mImpl->mLandp->resolveHeightRegion(x, y)));

+            probe_origin.mV[2] += hover_height;

+            probe_origin += origin;

+

+            mReflectionMaps[idx]->mOrigin.load3(probe_origin.mV);

+            mReflectionMaps[idx]->mRadius = probe_radius;

+        }

+    }

+}

+

+void LLViewerRegion::addToVOCacheTree(LLVOCacheEntry* entry)

+{

+    if(!sVOCacheCullingEnabled)

+    {

+        return;

+    }

+

+    if(mDead || !entry || !entry->getEntry() || !entry->isValid())

+    {

+        return;

+    }

+    if(entry->getParentID() > 0)

+    {

+        return; //no child prim in cache octree.

+    }

+

+    if(entry->hasState(LLVOCacheEntry::IN_VO_TREE))

+    {

+        return; //already in the tree.

+    }

+

+    llassert_always(!entry->getGroup()); //not in octree.

+    llassert(!entry->getEntry()->hasDrawable()); //not have drawables

+

+    if(mImpl->mVOCachePartition->addEntry(entry->getEntry()))

+    {

+        entry->setState(LLVOCacheEntry::IN_VO_TREE);

+    }

+}

+

+void LLViewerRegion::removeFromVOCacheTree(LLVOCacheEntry* entry)

+{

+    if(mDead || !entry || !entry->getEntry())

+    {

+        return;

+    }

+

+    if(!entry->hasState(LLVOCacheEntry::IN_VO_TREE))

+    {

+        return; //not in the tree.

+    }

+    entry->clearState(LLVOCacheEntry::IN_VO_TREE);

+

+    mImpl->mVOCachePartition->removeEntry(entry->getEntry());

+}

+

+//add child objects as visible entries

+void LLViewerRegion::addVisibleChildCacheEntry(LLVOCacheEntry* parent, LLVOCacheEntry* child)

+{

+    if(mDead)

+    {

+        return;

+    }

+

+    if(parent && (!parent->isValid() || !parent->isState(LLVOCacheEntry::ACTIVE)))

+    {

+        return; //parent must be valid and in rendering pipeline

+    }

+

+    if(child && (!child->getEntry() || !child->isValid() || !child->isState(LLVOCacheEntry::INACTIVE)))

+    {

+        return; //child must be valid and not in the rendering pipeline

+    }

+

+    if(child)

+    {

+        child->setState(LLVOCacheEntry::IN_QUEUE);

+        mImpl->mVisibleEntries.insert(child);

+    }

+    else if(parent && parent->getNumOfChildren() > 0) //add all children

+    {

+        child = parent->getChild();

+        while(child != NULL)

+        {

+            addVisibleChildCacheEntry(NULL, child);

+            child = parent->getChild();

+        }

+    }

+}

+

+void LLViewerRegion::updateVisibleEntries(F32 max_time)

+{

+    if(mDead)

+    {

+        return;

+    }

+

+    if(mImpl->mVisibleGroups.empty() && mImpl->mVisibleEntries.empty())

+    {

+        return;

+    }

+

+    if(!sNewObjectCreationThrottle)

+    {

+        return;

+    }

+

+    const F32 LARGE_SCENE_CONTRIBUTION = 1000.f; //a large number to force to load the object.

+    const LLVector3 camera_origin = LLViewerCamera::getInstance()->getOrigin();

+    const U32 cur_frame = LLViewerOctreeEntryData::getCurrentFrame();

+    bool needs_update = ((cur_frame - mImpl->mLastCameraUpdate) > 5) && ((camera_origin - mImpl->mLastCameraOrigin).lengthSquared() > 10.f);

+    U32 last_update = mImpl->mLastCameraUpdate;

+    LLVector4a local_origin;

+    local_origin.load3((camera_origin - getOriginAgent()).mV);

+

+    //process visible entries

+    for(LLVOCacheEntry::vocache_entry_set_t::iterator iter = mImpl->mVisibleEntries.begin(); iter != mImpl->mVisibleEntries.end();)

+    {

+        LLVOCacheEntry* vo_entry = *iter;

+

+        if(vo_entry->isValid() && vo_entry->getState() < LLVOCacheEntry::WAITING)

+        {

+            //set a large number to force to load this object.

+            vo_entry->setSceneContribution(LARGE_SCENE_CONTRIBUTION);

+

+            mImpl->mWaitingList.insert(vo_entry);

+            ++iter;

+        }

+        else

+        {

+            LLVOCacheEntry::vocache_entry_set_t::iterator next_iter = iter;

+            ++next_iter;

+            mImpl->mVisibleEntries.erase(iter);

+            iter = next_iter;

+        }

+    }

+

+    //

+    //process visible groups

+    //

+    //object projected area threshold

+    F32 projection_threshold = LLVOCacheEntry::getSquaredPixelThreshold(mImpl->mVOCachePartition->isFrontCull());

+    F32 dist_threshold = mImpl->mVOCachePartition->isFrontCull() ? gAgentCamera.mDrawDistance : LLVOCacheEntry::sRearFarRadius;

+

+    std::set< LLPointer<LLViewerOctreeGroup> >::iterator group_iter = mImpl->mVisibleGroups.begin();

+    for(; group_iter != mImpl->mVisibleGroups.end(); ++group_iter)

+    {

+        LLPointer<LLViewerOctreeGroup> group = *group_iter;

+        if(group->getNumRefs() < 3 || //group to be deleted

+            !group->getOctreeNode() || group->isEmpty()) //group empty

+        {

+            continue;

+        }

+

+        for (LLViewerOctreeGroup::element_iter i = group->getDataBegin(); i != group->getDataEnd(); ++i)

+        {

+            if((*i)->hasVOCacheEntry())

+            {

+                LLVOCacheEntry* vo_entry = (LLVOCacheEntry*)(*i)->getVOCacheEntry();

+

+                if(vo_entry->getParentID() > 0) //is a child

+                {

+                    //child visibility depends on its parent.

+                    continue;

+                }

+                if(!vo_entry->isValid())

+                {

+                    continue; //skip invalid entry.

+                }

+

+                vo_entry->calcSceneContribution(local_origin, needs_update, last_update, dist_threshold);

+                if(vo_entry->getSceneContribution() > projection_threshold)

+                {

+                    mImpl->mWaitingList.insert(vo_entry);

+                }

+            }

+        }

+    }

+

+    if(needs_update)

+    {

+        mImpl->mLastCameraOrigin = camera_origin;

+        mImpl->mLastCameraUpdate = cur_frame;

+    }

+

+    return;

+}

+

+void LLViewerRegion::createVisibleObjects(F32 max_time)

+{

+    if(mDead)

+    {

+        return;

+    }

+    if(mImpl->mWaitingList.empty())

+    {

+        mImpl->mVOCachePartition->setCullHistory(false);

+        return;

+    }

+

+    S32 throttle = sNewObjectCreationThrottle;

+    bool has_new_obj = false;

+    LLTimer update_timer;

+    for(LLVOCacheEntry::vocache_entry_priority_list_t::iterator iter = mImpl->mWaitingList.begin();

+        iter != mImpl->mWaitingList.end(); ++iter)

+    {

+        LLVOCacheEntry* vo_entry = *iter;

+

+        if(vo_entry->getState() < LLVOCacheEntry::WAITING)

+        {

+            addNewObject(vo_entry);

+            has_new_obj = true;

+            if(throttle > 0 && !(--throttle) && update_timer.getElapsedTimeF32() > max_time)

+            {

+                break;

+            }

+        }

+    }

+

+    mImpl->mVOCachePartition->setCullHistory(has_new_obj);

+

+    return;

+}

+

+void LLViewerRegion::clearCachedVisibleObjects()

+{

+    mImpl->mWaitingList.clear();

+    mImpl->mVisibleGroups.clear();

+

+    //reset all occluders

+    mImpl->mVOCachePartition->resetOccluders();

+    mPaused = true;

+

+    //clean visible entries

+    for(LLVOCacheEntry::vocache_entry_set_t::iterator iter = mImpl->mVisibleEntries.begin(); iter != mImpl->mVisibleEntries.end();)

+    {

+        LLVOCacheEntry* entry = *iter;

+        LLVOCacheEntry* parent = getCacheEntry(entry->getParentID());

+

+        if(!entry->getParentID() || parent) //no child or parent is cache-able

+        {

+            if(parent) //has a cache-able parent

+            {

+                parent->addChild(entry);

+            }

+

+            LLVOCacheEntry::vocache_entry_set_t::iterator next_iter = iter;

+            ++next_iter;

+            mImpl->mVisibleEntries.erase(iter);

+            iter = next_iter;

+        }

+        else //parent is not cache-able, leave it.

+        {

+            ++iter;

+        }

+    }

+

+    //remove all visible entries.

+    mLastVisitedEntry = NULL;

+    std::vector<LLDrawable*> delete_list;

+    for(LLVOCacheEntry::vocache_entry_set_t::iterator iter = mImpl->mActiveSet.begin();

+        iter != mImpl->mActiveSet.end(); ++iter)

+    {

+        LLVOCacheEntry* vo_entry = *iter;

+        if (!vo_entry || !vo_entry->getEntry())

+        {

+            continue;

+        }

+        LLDrawable* drawablep = (LLDrawable*)vo_entry->getEntry()->getDrawable();

+

+        if(drawablep && !drawablep->getParent())

+        {

+            delete_list.push_back(drawablep);

+        }

+    }

+

+    if(!delete_list.empty())

+    {

+        for(S32 i = 0; i < delete_list.size(); i++)

+        {

+            gObjectList.killObject(delete_list[i]->getVObj());

+        }

+        delete_list.clear();

+    }

+

+    return;

+}

+

+//perform some necessary but very light updates.

+//to replace the function idleUpdate(...) in case there is no enough time.

+void LLViewerRegion::lightIdleUpdate()

+{

+    if(!sVOCacheCullingEnabled)

+    {

+        return;

+    }

+    if(mImpl->mCacheMap.empty())

+    {

+        return;

+    }

+

+    //reset all occluders

+    mImpl->mVOCachePartition->resetOccluders();

+}

+

+void LLViewerRegion::idleUpdate(F32 max_update_time)

+{

+    LL_PROFILE_ZONE_SCOPED;

+    LLTimer update_timer;

+    F32 max_time;

+

+    mLastUpdate = LLViewerOctreeEntryData::getCurrentFrame();

+

+    mImpl->mLandp->idleUpdate(max_update_time);

+

+    if (mParcelOverlay)

+    {

+        // Hopefully not a significant time sink...

+        mParcelOverlay->idleUpdate();

+    }

+

+    if(!sVOCacheCullingEnabled)

+    {

+        return;

+    }

+    if(mImpl->mCacheMap.empty())

+    {

+        return;

+    }

+    if(mPaused)

+    {

+        mPaused = false; //unpause.

+    }

+

+    LLViewerCamera::eCameraID old_camera_id = LLViewerCamera::sCurCameraID;

+    LLViewerCamera::sCurCameraID = LLViewerCamera::CAMERA_WORLD;

+

+    //reset all occluders

+    mImpl->mVOCachePartition->resetOccluders();

+

+    max_time = max_update_time - update_timer.getElapsedTimeF32();

+

+    //kill invisible objects

+    killInvisibleObjects(max_time * 0.4f);

+    max_time = max_update_time - update_timer.getElapsedTimeF32();

+

+    updateVisibleEntries(max_time);

+    max_time = max_update_time - update_timer.getElapsedTimeF32();

+

+    createVisibleObjects(max_time);

+

+    mImpl->mWaitingList.clear();

+    mImpl->mVisibleGroups.clear();

+

+    LLViewerCamera::sCurCameraID = old_camera_id;

+    return;

+}

+

+// static

+void LLViewerRegion::idleCleanup(F32 max_update_time)

+{

+    LLTimer update_timer;

+    while (!sRegionCacheCleanup.empty() && (max_update_time - update_timer.getElapsedTimeF32() > 0))

+    {

+        sRegionCacheCleanup.erase(sRegionCacheCleanup.begin());

+    }

+}

+

+//update the throttling number for new object creation

+void LLViewerRegion::calcNewObjectCreationThrottle()

+{

+    static LLCachedControl<S32> new_object_creation_throttle(gSavedSettings,"NewObjectCreationThrottle");

+    static LLCachedControl<F32> throttle_delay_time(gSavedSettings,"NewObjectCreationThrottleDelayTime");

+    static LLFrameTimer timer;

+

+    //

+    //sNewObjectCreationThrottle =

+    //-2: throttle is disabled because either the screen is showing progress view, or immediate after the screen is not black

+    //-1: throttle is disabled by the debug setting

+    //0:  no new object creation is allowed

+    //>0: valid throttling number

+    //

+

+    if(gViewerWindow->getProgressView()->getVisible() && throttle_delay_time > 0.f)

+    {

+        sNewObjectCreationThrottle = -2; //cancel the throttling

+        timer.reset();

+    }

+    else if(sNewObjectCreationThrottle < -1) //just recoved from the login/teleport screen

+    {

+        if(timer.getElapsedTimeF32() > throttle_delay_time) //wait for throttle_delay_time to reset the throttle

+        {

+            sNewObjectCreationThrottle = new_object_creation_throttle; //reset

+            if(sNewObjectCreationThrottle < -1)

+            {

+                sNewObjectCreationThrottle = -1;

+            }

+        }

+    }

+

+    //update some LLVOCacheEntry debug setting factors.

+    LLVOCacheEntry::updateDebugSettings();

+}

+

+bool LLViewerRegion::isViewerCameraStatic()

+{

+    return sLastCameraUpdated < LLViewerOctreeEntryData::getCurrentFrame();

+}

+

+void LLViewerRegion::killInvisibleObjects(F32 max_time)

+{

+#if 1 // TODO: kill this.  This is ill-conceived, objects that aren't in the camera frustum should not be deleted from memory.

+        // because of this, every time you turn around the simulator sends a swarm of full object update messages from cache

+    // probe misses and objects have to be reloaded from scratch.  From some reason, disabling this causes holes to

+    // appear in the scene when flying back and forth between regions

+    if(!sVOCacheCullingEnabled)

+    {

+        return;

+    }

+    if(mImpl->mActiveSet.empty())

+    {

+        return;

+    }

+    if(sNewObjectCreationThrottle < 0)

+    {

+        return;

+    }

+

+    LLTimer update_timer;

+    LLVector4a camera_origin;

+    camera_origin.load3(LLViewerCamera::getInstance()->getOrigin().mV);

+    LLVector4a local_origin;

+    local_origin.load3((LLViewerCamera::getInstance()->getOrigin() - getOriginAgent()).mV);

+    F32 back_threshold = LLVOCacheEntry::sRearFarRadius;

+

+    size_t max_update = 64;

+    if(!mInvisibilityCheckHistory && isViewerCameraStatic())

+    {

+        //history is clean, reduce number of checking

+        max_update /= 2;

+    }

+

+    std::vector<LLDrawable*> delete_list;

+    S32 update_counter = llmin(max_update, mImpl->mActiveSet.size());

+    LLVOCacheEntry::vocache_entry_set_t::iterator iter = mImpl->mActiveSet.upper_bound(mLastVisitedEntry);

+

+    for(; update_counter > 0; --update_counter, ++iter)

+    {

+        if(iter == mImpl->mActiveSet.end())

+        {

+            iter = mImpl->mActiveSet.begin();

+        }

+        if((*iter)->getParentID() > 0)

+        {

+            continue; //skip child objects, they are removed with their parent.

+        }

+

+        LLVOCacheEntry* vo_entry = *iter;

+        if(!vo_entry->isAnyVisible(camera_origin, local_origin, back_threshold) && vo_entry->mLastCameraUpdated < sLastCameraUpdated)

+        {

+            killObject(vo_entry, delete_list);

+        }

+

+        if(max_time < update_timer.getElapsedTimeF32()) //time out

+        {

+            break;

+        }

+    }

+

+    if(iter == mImpl->mActiveSet.end())

+    {

+        mLastVisitedEntry = NULL;

+    }

+    else

+    {

+        mLastVisitedEntry = *iter;

+    }

+

+    mInvisibilityCheckHistory <<= 1;

+    if(!delete_list.empty())

+    {

+        mInvisibilityCheckHistory |= 1;

+        S32 count = delete_list.size();

+        for(S32 i = 0; i < count; i++)

+        {

+            gObjectList.killObject(delete_list[i]->getVObj());

+        }

+        delete_list.clear();

+    }

+

+    return;

+#endif

+}

+

+void LLViewerRegion::killObject(LLVOCacheEntry* entry, std::vector<LLDrawable*>& delete_list)

+{

+    //kill the object.

+    LLDrawable* drawablep = (LLDrawable*)entry->getEntry()->getDrawable();

+    llassert(drawablep);

+    llassert(drawablep->getRegion() == this);

+

+    if(drawablep && !drawablep->getParent())

+    {

+        LLViewerObject* v_obj = drawablep->getVObj();

+        if (v_obj->isSelected()

+            || (v_obj->flagAnimSource() && isAgentAvatarValid() && gAgentAvatarp->hasMotionFromSource(v_obj->getID())))

+        {

+            // do not remove objects user is interacting with

+            ((LLViewerOctreeEntryData*)drawablep)->setVisible();

+            return;

+        }

+        LLViewerObject::const_child_list_t& child_list = v_obj->getChildren();

+        for (LLViewerObject::child_list_t::const_iterator iter = child_list.begin();

+            iter != child_list.end(); iter++)

+        {

+            LLViewerObject* child = *iter;

+            if(child->mDrawable)

+            {

+                if( !child->mDrawable->getEntry()

+                    || !child->mDrawable->getEntry()->hasVOCacheEntry()

+                    || child->isSelected()

+                    || (child->flagAnimSource() && isAgentAvatarValid() && gAgentAvatarp->hasMotionFromSource(child->getID())))

+                {

+                    //do not remove parent if any of its children non-cacheable, animating or selected

+                    //especially for the case that an avatar sits on a cache-able object

+                    ((LLViewerOctreeEntryData*)drawablep)->setVisible();

+                    return;

+                }

+

+                LLOcclusionCullingGroup* group = (LLOcclusionCullingGroup*)child->mDrawable->getGroup();

+                if(group && group->isAnyRecentlyVisible())

+                {

+                    //set the parent visible if any of its children visible.

+                    ((LLViewerOctreeEntryData*)drawablep)->setVisible();

+                    return;

+                }

+            }

+        }

+        delete_list.push_back(drawablep);

+    }

+}

+

+LLViewerObject* LLViewerRegion::addNewObject(LLVOCacheEntry* entry)

+{

+    if(!entry || !entry->getEntry())

+    {

+        if(entry)

+        {

+            mImpl->mVisibleEntries.erase(entry);

+            entry->setState(LLVOCacheEntry::INACTIVE);

+        }

+        return NULL;

+    }

+

+    LLViewerObject* obj = NULL;

+    if(!entry->getEntry()->hasDrawable()) //not added to the rendering pipeline yet

+    {

+        //add the object

+        obj = gObjectList.processObjectUpdateFromCache(entry, this);

+        if(obj)

+        {

+            if(!entry->isState(LLVOCacheEntry::ACTIVE))

+            {

+                mImpl->mWaitingSet.insert(entry);

+                entry->setState(LLVOCacheEntry::WAITING);

+            }

+        }

+    }

+    else

+    {

+        LLViewerRegion* old_regionp = ((LLDrawable*)entry->getEntry()->getDrawable())->getRegion();

+        if(old_regionp != this)

+        {

+            //this object exists in two regions at the same time;

+            //this case can be safely ignored here because

+            //server should soon send update message to remove one region for this object.

+

+            LL_WARNS() << "Entry: " << entry->getLocalID() << " exists in two regions at the same time." << LL_ENDL;

+            return NULL;

+        }

+

+        LL_WARNS() << "Entry: " << entry->getLocalID() << " in rendering pipeline but not set to be active." << LL_ENDL;

+

+        //should not hit here any more, but does not hurt either, just put it back to active list

+        addActiveCacheEntry(entry);

+    }

+

+    return obj;

+}

+

+//update object cache if the object receives a full-update or terse update

+//update_type == EObjectUpdateType::OUT_TERSE_IMPROVED or EObjectUpdateType::OUT_FULL

+LLViewerObject* LLViewerRegion::updateCacheEntry(U32 local_id, LLViewerObject* objectp)

+{

+    LLVOCacheEntry* entry = getCacheEntry(local_id);

+    if (!entry)

+    {

+        return objectp; //not in the cache, do nothing.

+    }

+    if(!objectp) //object not created

+    {

+        //create a new object from cache.

+        objectp = addNewObject(entry);

+    }

+

+    //remove from cache.

+    killCacheEntry(entry, true);

+

+    return objectp;

+}

+

+// As above, but forcibly do the update.

+void LLViewerRegion::forceUpdate()

+{

+    mImpl->mLandp->idleUpdate(0.f);

+

+    if (mParcelOverlay)

+    {

+        mParcelOverlay->idleUpdate(true);

+    }

+}

+

+void LLViewerRegion::connectNeighbor(LLViewerRegion *neighborp, U32 direction)

+{

+    mImpl->mLandp->connectNeighbor(neighborp->mImpl->mLandp, direction);

+}

+

+

+void LLViewerRegion::disconnectAllNeighbors()

+{

+    mImpl->mLandp->disconnectAllNeighbors();

+}

+

+LLVLComposition * LLViewerRegion::getComposition() const

+{

+    return mImpl->mCompositionp;

+}

+

+F32 LLViewerRegion::getCompositionXY(const S32 x, const S32 y) const

+{

+    if (x >= 256)

+    {

+        if (y >= 256)

+        {

+            LLVector3d center = getCenterGlobal() + LLVector3d(256.f, 256.f, 0.f);

+            LLViewerRegion *regionp = LLWorld::getInstance()->getRegionFromPosGlobal(center);

+            if (regionp)

+            {

+                // OK, we need to do some hackery here - different simulators no longer use

+                // the same composition values, necessarily.

+                // If we're attempting to blend, then we want to make the fractional part of

+                // this region match the fractional of the adjacent.  For now, just minimize

+                // the delta.

+                F32 our_comp = getComposition()->getValueScaled(255, 255);

+                F32 adj_comp = regionp->getComposition()->getValueScaled(x - 256.f, y - 256.f);

+                while (llabs(our_comp - adj_comp) >= 1.f)

+                {

+                    if (our_comp > adj_comp)

+                    {

+                        adj_comp += 1.f;

+                    }

+                    else

+                    {

+                        adj_comp -= 1.f;

+                    }

+                }

+                return adj_comp;

+            }

+        }

+        else

+        {

+            LLVector3d center = getCenterGlobal() + LLVector3d(256.f, 0, 0.f);

+            LLViewerRegion *regionp = LLWorld::getInstance()->getRegionFromPosGlobal(center);

+            if (regionp)

+            {

+                // OK, we need to do some hackery here - different simulators no longer use

+                // the same composition values, necessarily.

+                // If we're attempting to blend, then we want to make the fractional part of

+                // this region match the fractional of the adjacent.  For now, just minimize

+                // the delta.

+                F32 our_comp = getComposition()->getValueScaled(255.f, (F32)y);

+                F32 adj_comp = regionp->getComposition()->getValueScaled(x - 256.f, (F32)y);

+                while (llabs(our_comp - adj_comp) >= 1.f)

+                {

+                    if (our_comp > adj_comp)

+                    {

+                        adj_comp += 1.f;

+                    }

+                    else

+                    {

+                        adj_comp -= 1.f;

+                    }

+                }

+                return adj_comp;

+            }

+        }

+    }

+    else if (y >= 256)

+    {

+        LLVector3d center = getCenterGlobal() + LLVector3d(0.f, 256.f, 0.f);

+        LLViewerRegion *regionp = LLWorld::getInstance()->getRegionFromPosGlobal(center);

+        if (regionp)

+        {

+            // OK, we need to do some hackery here - different simulators no longer use

+            // the same composition values, necessarily.

+            // If we're attempting to blend, then we want to make the fractional part of

+            // this region match the fractional of the adjacent.  For now, just minimize

+            // the delta.

+            F32 our_comp = getComposition()->getValueScaled((F32)x, 255.f);

+            F32 adj_comp = regionp->getComposition()->getValueScaled((F32)x, y - 256.f);

+            while (llabs(our_comp - adj_comp) >= 1.f)

+            {

+                if (our_comp > adj_comp)

+                {

+                    adj_comp += 1.f;

+                }

+                else

+                {

+                    adj_comp -= 1.f;

+                }

+            }

+            return adj_comp;

+        }

+    }

+

+    return getComposition()->getValueScaled((F32)x, (F32)y);

+}

+

+void LLViewerRegion::calculateCenterGlobal()

+{

+    mImpl->mCenterGlobal = mImpl->mOriginGlobal;

+    mImpl->mCenterGlobal.mdV[VX] += 0.5 * mWidth;

+    mImpl->mCenterGlobal.mdV[VY] += 0.5 * mWidth;

+    mImpl->mCenterGlobal.mdV[VZ] = 0.5 * mImpl->mLandp->getMinZ() + mImpl->mLandp->getMaxZ();

+}

+

+void LLViewerRegion::calculateCameraDistance()

+{

+    mCameraDistanceSquared = (F32)(gAgentCamera.getCameraPositionGlobal() - getCenterGlobal()).magVecSquared();

+}

+

+std::ostream& operator<<(std::ostream &s, const LLViewerRegion &region)

+{

+    s << "{ ";

+    s << region.mImpl->mHost;

+    s << " mOriginGlobal = " << region.getOriginGlobal()<< "\n";

+    std::string name(region.getName()), zone(region.getZoning());

+    if (! name.empty())

+    {

+        s << " mName         = " << name << '\n';

+    }

+    if (! zone.empty())

+    {

+        s << " mZoning       = " << zone << '\n';

+    }

+    s << "}";

+    return s;

+}

+

+

+// ---------------- Protected Member Functions ----------------

+

+void LLViewerRegion::updateNetStats()

+{

+    F32 dt = mImpl->mLastNetUpdate.getElapsedTimeAndResetF32();

+

+    LLCircuitData *cdp = gMessageSystem->mCircuitInfo.findCircuit(mImpl->mHost);

+    if (!cdp)

+    {

+        mAlive = false;

+        return;

+    }

+

+    mAlive = true;

+    mDeltaTime = dt;

+

+    mLastPacketsIn =    mPacketsIn;

+    mLastBitsIn =       mBitsIn;

+    mLastPacketsOut =   mPacketsOut;

+    mLastPacketsLost =  mPacketsLost;

+

+    mPacketsIn =                cdp->getPacketsIn();

+    mBitsIn =                   8 * cdp->getBytesIn();

+    mPacketsOut =               cdp->getPacketsOut();

+    mPacketsLost =              cdp->getPacketsLost();

+    mPingDelay =                cdp->getPingDelay();

+

+    mBitsReceived += mBitsIn - mLastBitsIn;

+    mPacketsReceived += mPacketsIn - mLastPacketsIn;

+}

+

+

+U32 LLViewerRegion::getPacketsLost() const

+{

+    LLCircuitData *cdp = gMessageSystem->mCircuitInfo.findCircuit(mImpl->mHost);

+    if (!cdp)

+    {

+        LL_INFOS() << "LLViewerRegion::getPacketsLost couldn't find circuit for " << mImpl->mHost << LL_ENDL;

+        return 0;

+    }

+    else

+    {

+        return cdp->getPacketsLost();

+    }

+}

+

+S32 LLViewerRegion::getHttpResponderID() const

+{

+    return mImpl->mHttpResponderID;

+}

+

+bool LLViewerRegion::pointInRegionGlobal(const LLVector3d &point_global) const

+{

+    LLVector3 pos_region = getPosRegionFromGlobal(point_global);

+

+    if (pos_region.mV[VX] < 0)

+    {

+        return false;

+    }

+    if (pos_region.mV[VX] >= mWidth)

+    {

+        return false;

+    }

+    if (pos_region.mV[VY] < 0)

+    {

+        return false;

+    }

+    if (pos_region.mV[VY] >= mWidth)

+    {

+        return false;

+    }

+    return true;

+}

+

+LLVector3 LLViewerRegion::getPosRegionFromGlobal(const LLVector3d &point_global) const

+{

+    LLVector3 pos_region;

+    pos_region.setVec(point_global - mImpl->mOriginGlobal);

+    return pos_region;

+}

+

+LLVector3d LLViewerRegion::getPosGlobalFromRegion(const LLVector3 &pos_region) const

+{

+    LLVector3d pos_region_d;

+    pos_region_d.setVec(pos_region);

+    return pos_region_d + mImpl->mOriginGlobal;

+}

+

+LLVector3 LLViewerRegion::getPosAgentFromRegion(const LLVector3 &pos_region) const

+{

+    LLVector3d pos_global = getPosGlobalFromRegion(pos_region);

+

+    return gAgent.getPosAgentFromGlobal(pos_global);

+}

+

+LLVector3 LLViewerRegion::getPosRegionFromAgent(const LLVector3 &pos_agent) const

+{

+    return pos_agent - getOriginAgent();

+}

+

+F32 LLViewerRegion::getLandHeightRegion(const LLVector3& region_pos)

+{

+    return mImpl->mLandp->resolveHeightRegion( region_pos );

+}

+

+bool LLViewerRegion::isAlive()

+{

+    return mAlive;

+}

+

+bool LLViewerRegion::isOwnedSelf(const LLVector3& pos)

+{

+    if (mParcelOverlay)

+    {

+        return mParcelOverlay->isOwnedSelf(pos);

+    } else {

+        return false;

+    }

+}

+

+// Owned by a group you belong to?  (officer or member)

+bool LLViewerRegion::isOwnedGroup(const LLVector3& pos)

+{

+    if (mParcelOverlay)

+    {

+        return mParcelOverlay->isOwnedGroup(pos);

+    } else {

+        return false;

+    }

+}

+

+// the new TCP coarse location handler node

+class CoarseLocationUpdate : public LLHTTPNode

+{

+public:

+    virtual void post(

+        ResponsePtr responder,

+        const LLSD& context,

+        const LLSD& input) const

+    {

+        LLHost host(input["sender"].asString());

+

+        LLWorld *world_inst = LLWorld::getInstance(); // Not a singleton!

+        if (!world_inst)

+        {

+            return;

+        }

+

+        LLViewerRegion* region = world_inst->getRegion(host);

+        if( !region )

+        {

+            return;

+        }

+

+        S32 target_index = input["body"]["Index"][0]["Prey"].asInteger();

+        S32 you_index    = input["body"]["Index"][0]["You" ].asInteger();

+

+        std::vector<U32>* avatar_locs = &region->mMapAvatars;

+        std::vector<LLUUID>* avatar_ids = &region->mMapAvatarIDs;

+        avatar_locs->clear();

+        avatar_ids->clear();

+

+        //LL_INFOS() << "coarse locations agent[0] " << input["body"]["AgentData"][0]["AgentID"].asUUID() << LL_ENDL;

+        //LL_INFOS() << "my agent id = " << gAgent.getID() << LL_ENDL;

+        //LL_INFOS() << ll_pretty_print_sd(input) << LL_ENDL;

+

+        LLSD

+            locs   = input["body"]["Location"],

+            agents = input["body"]["AgentData"];

+        LLSD::array_iterator

+            locs_it = locs.beginArray(),

+            agents_it = agents.beginArray();

+        bool has_agent_data = input["body"].has("AgentData");

+

+        for(int i=0;

+            locs_it != locs.endArray();

+            i++, locs_it++)

+        {

+            U8

+                x = locs_it->get("X").asInteger(),

+                y = locs_it->get("Y").asInteger(),

+                z = locs_it->get("Z").asInteger();

+            // treat the target specially for the map, and don't add you or the target

+            if(i == target_index)

+            {

+                LLVector3d global_pos(region->getOriginGlobal());

+                global_pos.mdV[VX] += (F64)x;

+                global_pos.mdV[VY] += (F64)y;

+                global_pos.mdV[VZ] += (F64)z * 4.0;

+                LLAvatarTracker::instance().setTrackedCoarseLocation(global_pos);

+            }

+            else if( i != you_index)

+            {

+                U32 pos = 0x0;

+                pos |= x;

+                pos <<= 8;

+                pos |= y;

+                pos <<= 8;

+                pos |= z;

+                avatar_locs->push_back(pos);

+                //LL_INFOS() << "next pos: " << x << "," << y << "," << z << ": " << pos << LL_ENDL;

+                if(has_agent_data) // for backwards compatibility with old message format

+                {

+                    LLUUID agent_id(agents_it->get("AgentID").asUUID());

+                    //LL_INFOS() << "next agent: " << agent_id.asString() << LL_ENDL;

+                    avatar_ids->push_back(agent_id);

+                }

+            }

+            if (has_agent_data)

+            {

+                agents_it++;

+            }

+        }

+    }

+};

+

+// build the coarse location HTTP node under the "/message" URL

+LLHTTPRegistration<CoarseLocationUpdate>

+   gHTTPRegistrationCoarseLocationUpdate(

+       "/message/CoarseLocationUpdate");

+

+

+// the deprecated coarse location handler

+void LLViewerRegion::updateCoarseLocations(LLMessageSystem* msg)

+{

+    //LL_INFOS() << "CoarseLocationUpdate" << LL_ENDL;

+    mMapAvatars.clear();

+    mMapAvatarIDs.clear(); // only matters in a rare case but it's good to be safe.

+

+    U8 x_pos = 0;

+    U8 y_pos = 0;

+    U8 z_pos = 0;

+

+    U32 pos = 0x0;

+

+    S16 agent_index;

+    S16 target_index;

+    msg->getS16Fast(_PREHASH_Index, _PREHASH_You, agent_index);

+    msg->getS16Fast(_PREHASH_Index, _PREHASH_Prey, target_index);

+

+    bool has_agent_data = msg->has(_PREHASH_AgentData);

+    S32 count = msg->getNumberOfBlocksFast(_PREHASH_Location);

+    for(S32 i = 0; i < count; i++)

+    {

+        msg->getU8Fast(_PREHASH_Location, _PREHASH_X, x_pos, i);

+        msg->getU8Fast(_PREHASH_Location, _PREHASH_Y, y_pos, i);

+        msg->getU8Fast(_PREHASH_Location, _PREHASH_Z, z_pos, i);

+        LLUUID agent_id = LLUUID::null;

+        if(has_agent_data)

+        {

+            msg->getUUIDFast(_PREHASH_AgentData, _PREHASH_AgentID, agent_id, i);

+        }

+

+        //LL_INFOS() << "  object X: " << (S32)x_pos << " Y: " << (S32)y_pos

+        //      << " Z: " << (S32)(z_pos * 4)

+        //      << LL_ENDL;

+

+        // treat the target specially for the map

+        if(i == target_index)

+        {

+            LLVector3d global_pos(mImpl->mOriginGlobal);

+            global_pos.mdV[VX] += (F64)(x_pos);

+            global_pos.mdV[VY] += (F64)(y_pos);

+            global_pos.mdV[VZ] += (F64)(z_pos) * 4.0;

+            LLAvatarTracker::instance().setTrackedCoarseLocation(global_pos);

+        }

+

+        //don't add you

+        if( i != agent_index)

+        {

+            pos = 0x0;

+            pos |= x_pos;

+            pos <<= 8;

+            pos |= y_pos;

+            pos <<= 8;

+            pos |= z_pos;

+            mMapAvatars.push_back(pos);

+            if(has_agent_data)

+            {

+                mMapAvatarIDs.push_back(agent_id);

+            }

+        }

+    }

+}

+

+void LLViewerRegion::getInfo(LLSD& info)

+{

+    info["Region"]["Host"] = getHost().getIPandPort();

+    info["Region"]["Name"] = getName();

+    U32 x, y;

+    from_region_handle(getHandle(), &x, &y);

+    info["Region"]["Handle"]["x"] = (LLSD::Integer)x;

+    info["Region"]["Handle"]["y"] = (LLSD::Integer)y;

+}

+

+void LLViewerRegion::requestSimulatorFeatures()

+{

+    LL_DEBUGS("SimulatorFeatures") << "region " << getName() << " ptr " << this

+                                   << " trying to request SimulatorFeatures" << LL_ENDL;

+    // kick off a request for simulator features

+    std::string url = getCapability("SimulatorFeatures");

+    if (!url.empty())

+    {

+        std::string coroname =

+            LLCoros::instance().launch("LLViewerRegionImpl::requestSimulatorFeatureCoro",

+                                       boost::bind(&LLViewerRegionImpl::requestSimulatorFeatureCoro, url, getHandle()));

+

+        // requestSimulatorFeatures can be called from other coros,

+        // launch() acts like a suspend()

+        // Make sure we are still good to do

+        LLCoros::checkStop();

+

+        LL_INFOS("AppInit", "SimulatorFeatures") << "Launching " << coroname << " requesting simulator features from " << url << " for region " << getRegionID() << LL_ENDL;

+    }

+    else

+    {

+        LL_WARNS("AppInit", "SimulatorFeatures") << "SimulatorFeatures cap not set" << LL_ENDL;

+    }

+}

+

+boost::signals2::connection LLViewerRegion::setSimulatorFeaturesReceivedCallback(const caps_received_signal_t::slot_type& cb)

+{

+    return mSimulatorFeaturesReceivedSignal.connect(cb);

+}

+

+void LLViewerRegion::setSimulatorFeaturesReceived(bool received)

+{

+    mSimulatorFeaturesReceived = received;

+    if (received)

+    {

+        mSimulatorFeaturesReceivedSignal(getRegionID(), this);

+        mSimulatorFeaturesReceivedSignal.disconnect_all_slots();

+    }

+}

+

+bool LLViewerRegion::simulatorFeaturesReceived() const

+{

+    return mSimulatorFeaturesReceived;

+}

+

+void LLViewerRegion::getSimulatorFeatures(LLSD& sim_features) const

+{

+    sim_features = mSimulatorFeatures;

+

+}

+

+void LLViewerRegion::setSimulatorFeatures(const LLSD& sim_features)

+{

+    std::stringstream str;

+

+    LLSDSerialize::toPrettyXML(sim_features, str);

+    LL_INFOS() << "region " << getName() << " "  << str.str() << LL_ENDL;

+    mSimulatorFeatures = sim_features;

+

+    setSimulatorFeaturesReceived(true);

+

+}

+

+//this is called when the parent is not cacheable.

+//move all orphan children out of cache and insert to rendering octree.

+void LLViewerRegion::findOrphans(U32 parent_id)

+{

+    orphan_list_t::iterator iter = mOrphanMap.find(parent_id);

+    if(iter != mOrphanMap.end())

+    {

+        std::vector<U32>* children = &mOrphanMap[parent_id];

+        for(S32 i = 0; i < children->size(); i++)

+        {

+            //parent is visible, so is the child.

+            addVisibleChildCacheEntry(NULL, getCacheEntry((*children)[i]));

+        }

+        children->clear();

+        mOrphanMap.erase(parent_id);

+    }

+}

+

+void LLViewerRegion::decodeBoundingInfo(LLVOCacheEntry* entry)

+{

+    if(!sVOCacheCullingEnabled)

+    {

+        gObjectList.processObjectUpdateFromCache(entry, this);

+        return;

+    }

+    if(!entry || !entry->isValid())

+    {

+        return;

+    }

+

+    if(!entry->getEntry())

+    {

+        entry->setOctreeEntry(NULL);

+    }

+

+    if(entry->getEntry()->hasDrawable()) //already in the rendering pipeline

+    {

+        LLViewerRegion* old_regionp = ((LLDrawable*)entry->getEntry()->getDrawable())->getRegion();

+        if(old_regionp != this && old_regionp)

+        {

+            LLViewerObject* obj = ((LLDrawable*)entry->getEntry()->getDrawable())->getVObj();

+            if(obj)

+            {

+                //remove from old region

+                old_regionp->killCacheEntry(obj->getLocalID());

+

+                //change region

+                obj->setRegion(this);

+            }

+        }

+

+        addActiveCacheEntry(entry);

+

+        //set parent id

+        U32 parent_id = 0;

+        if (entry->getDP()) // NULL if nothing cached

+        {

+            LLViewerObject::unpackParentID(entry->getDP(), parent_id);

+        }

+        if(parent_id != entry->getParentID())

+        {

+            entry->setParentID(parent_id);

+        }

+

+        //update the object

+        gObjectList.processObjectUpdateFromCache(entry, this);

+        return; //done

+    }

+

+    //must not be active.

+    llassert_always(!entry->isState(LLVOCacheEntry::ACTIVE));

+    removeFromVOCacheTree(entry); //remove from cache octree if it is in.

+

+    LLVector3 pos;

+    LLVector3 scale;

+    LLQuaternion rot;

+

+    //decode spatial info and parent info

+    U32 parent_id = entry->getDP() ? LLViewerObject::extractSpatialExtents(entry->getDP(), pos, scale, rot) : entry->getParentID();

+

+    U32 old_parent_id = entry->getParentID();

+    bool same_old_parent = false;

+    if(parent_id != old_parent_id) //parent changed.

+    {

+        if(old_parent_id > 0) //has an old parent, disconnect it

+        {

+            LLVOCacheEntry* old_parent = getCacheEntry(old_parent_id);

+            if(old_parent)

+            {

+                old_parent->removeChild(entry);

+                if(!old_parent->isState(LLVOCacheEntry::INACTIVE))

+                {

+                    mImpl->mVisibleEntries.erase(entry);

+                    entry->setState(LLVOCacheEntry::INACTIVE);

+                }

+            }

+        }

+        entry->setParentID(parent_id);

+    }

+    else

+    {

+        same_old_parent = true;

+    }

+

+    if(parent_id > 0) //has a new parent

+    {

+        //1, find the parent in cache

+        LLVOCacheEntry* parent = getCacheEntry(parent_id);

+

+        //2, parent is not in the cache, put into the orphan list.

+        if(!parent)

+        {

+            if(!same_old_parent)

+            {

+                //check if parent is non-cacheable and already created

+                if(isNonCacheableObjectCreated(parent_id))

+                {

+                    //parent is visible, so is the child.

+                    addVisibleChildCacheEntry(NULL, entry);

+                }

+                else

+                {

+                    entry->setBoundingInfo(pos, scale);

+                    mOrphanMap[parent_id].push_back(entry->getLocalID());

+                }

+            }

+            else

+            {

+                entry->setBoundingInfo(pos, scale);

+            }

+        }

+        else //parent in cache.

+        {

+            if(!parent->isState(LLVOCacheEntry::INACTIVE))

+            {

+                //parent is visible, so is the child.

+                addVisibleChildCacheEntry(parent, entry);

+            }

+            else

+            {

+                entry->setBoundingInfo(pos, scale);

+                parent->addChild(entry);

+

+                if(parent->getGroup()) //re-insert parent to vo-cache tree because its bounding info changed.

+                {

+                    removeFromVOCacheTree(parent);

+                    addToVOCacheTree(parent);

+                }

+            }

+        }

+

+        return;

+    }

+

+    //

+    //no parent

+    //

+    entry->setBoundingInfo(pos, scale);

+

+    if(!parent_id) //a potential parent

+    {

+        //find all children and update their bounding info

+        orphan_list_t::iterator iter = mOrphanMap.find(entry->getLocalID());

+        if(iter != mOrphanMap.end())

+        {

+            std::vector<U32>* orphans = &mOrphanMap[entry->getLocalID()];

+            S32 size = orphans->size();

+            for(S32 i = 0; i < size; i++)

+            {

+                LLVOCacheEntry* child = getCacheEntry((*orphans)[i]);

+                if(child)

+                {

+                    entry->addChild(child);

+                }

+            }

+            orphans->clear();

+            mOrphanMap.erase(entry->getLocalID());

+        }

+    }

+

+    if(!entry->getGroup() && entry->isState(LLVOCacheEntry::INACTIVE))

+    {

+        addToVOCacheTree(entry);

+    }

+    return ;

+}

+

+LLViewerRegion::eCacheUpdateResult LLViewerRegion::cacheFullUpdate(LLDataPackerBinaryBuffer &dp, U32 flags)

+{

+    eCacheUpdateResult result;

+    U32 crc;

+    U32 local_id;

+

+    LLViewerObject::unpackU32(&dp, local_id, "LocalID");

+    LLViewerObject::unpackU32(&dp, crc, "CRC");

+

+    LLVOCacheEntry* entry = getCacheEntry(local_id, false);

+

+    if (entry)

+    {

+        entry->setValid();

+

+        // we've seen this object before

+        if (entry->getCRC() == crc)

+        {

+            LL_DEBUGS("AnimatedObjects") << " got dupe for local_id " << local_id << LL_ENDL;

+            dumpStack("AnimatedObjectsStack");

+

+            // Record a hit

+            entry->recordDupe();

+            result = CACHE_UPDATE_DUPE;

+        }

+        else //CRC changed

+        {

+            LL_DEBUGS("AnimatedObjects") << " got update for local_id " << local_id << LL_ENDL;

+            dumpStack("AnimatedObjectsStack");

+

+            // Update the cache entry

+            entry->updateEntry(crc, dp);

+

+            decodeBoundingInfo(entry);

+

+            result = CACHE_UPDATE_CHANGED;

+        }

+    }

+    else

+    {

+        LL_DEBUGS("AnimatedObjects") << " got first notification for local_id " << local_id << LL_ENDL;

+        dumpStack("AnimatedObjectsStack");

+

+        // we haven't seen this object before

+        // Create new entry and add to map

+        result = CACHE_UPDATE_ADDED;

+        entry = new LLVOCacheEntry(local_id, crc, dp);

+        record(LLStatViewer::OBJECT_CACHE_HIT_RATE, LLUnits::Ratio::fromValue(0));

+

+        mImpl->mCacheMap[local_id] = entry;

+

+        decodeBoundingInfo(entry);

+    }

+    entry->setUpdateFlags(flags);

+

+    return result;

+    }

+

+LLViewerRegion::eCacheUpdateResult LLViewerRegion::cacheFullUpdate(LLViewerObject* objectp, LLDataPackerBinaryBuffer &dp, U32 flags)

+{

+    eCacheUpdateResult result = cacheFullUpdate(dp, flags);

+

+    return result;

+}

+

+void LLViewerRegion::cacheFullUpdateGLTFOverride(const LLGLTFOverrideCacheEntry &override_data)

+{

+    U32 local_id = override_data.mLocalId;

+    mImpl->mGLTFOverridesLLSD[local_id] = override_data;

+}

+

+LLVOCacheEntry* LLViewerRegion::getCacheEntryForOctree(U32 local_id)

+{

+    if(!sVOCacheCullingEnabled)

+    {

+        return NULL;

+    }

+

+    LLVOCacheEntry* entry = getCacheEntry(local_id);

+    removeFromVOCacheTree(entry);

+

+    return entry;

+}

+

+LLVOCacheEntry* LLViewerRegion::getCacheEntry(U32 local_id, bool valid)

+{

+    LLVOCacheEntry::vocache_entry_map_t::iterator iter = mImpl->mCacheMap.find(local_id);

+    if(iter != mImpl->mCacheMap.end())

+    {

+        if(!valid || iter->second->isValid())

+        {

+            return iter->second;

+        }

+    }

+    return NULL;

+}

+

+void LLViewerRegion::addCacheMiss(U32 id, LLViewerRegion::eCacheMissType cache_miss_type)

+{

+    mRegionCacheMissCount++;

+    mCacheMissList.push_back(CacheMissItem(id, cache_miss_type));

+}

+

+//check if a non-cacheable object is already created.

+bool LLViewerRegion::isNonCacheableObjectCreated(U32 local_id)

+{

+    if(mImpl && local_id > 0 && mImpl->mNonCacheableCreatedList.find(local_id) != mImpl->mNonCacheableCreatedList.end())

+    {

+        return true;

+    }

+    return false;

+}

+

+void LLViewerRegion::removeFromCreatedList(U32 local_id)

+{

+    if(mImpl && local_id > 0)

+    {

+        std::set<U32>::iterator iter = mImpl->mNonCacheableCreatedList.find(local_id);

+        if(iter != mImpl->mNonCacheableCreatedList.end())

+        {

+            mImpl->mNonCacheableCreatedList.erase(iter);

+        }

+    }

+    }

+

+void LLViewerRegion::addToCreatedList(U32 local_id)

+{

+    if(mImpl && local_id > 0)

+    {

+        mImpl->mNonCacheableCreatedList.insert(local_id);

+    }

+}

+

+// Get data packer for this object, if we have cached data

+// AND the CRC matches. JC

+bool LLViewerRegion::probeCache(U32 local_id, U32 crc, U32 flags, U8 &cache_miss_type)

+{

+    //llassert(mCacheLoaded);  This assert failes often, changing to early-out -- davep, 2010/10/18

+

+    LLVOCacheEntry* entry = getCacheEntry(local_id, false);

+

+    if (entry)

+    {

+        // we've seen this object before

+        if (entry->getCRC() == crc)

+        {

+            // Record a hit

+            mRegionCacheHitCount++;

+            entry->recordHit();

+            cache_miss_type = CACHE_MISS_TYPE_NONE;

+            entry->setUpdateFlags(flags);

+

+            if(entry->isState(LLVOCacheEntry::ACTIVE))

+            {

+                ((LLDrawable*)entry->getEntry()->getDrawable())->getVObj()->loadFlags(flags);

+                return true;

+            }

+

+            if(entry->isValid())

+            {

+                return true; //already probed

+            }

+

+            entry->setValid();

+            decodeBoundingInfo(entry);

+

+            //loadCacheMiscExtras(local_id, entry, crc);

+

+            return true;

+        }

+        else

+        {

+            // LL_INFOS() << "CRC miss for " << local_id << LL_ENDL;

+

+            addCacheMiss(local_id, CACHE_MISS_TYPE_CRC);

+            cache_miss_type = CACHE_MISS_TYPE_CRC;

+        }

+    }

+    else

+    {   // Total miss, don't have the object in cache

+        // LL_INFOS() << "Cache miss for " << local_id << LL_ENDL;

+        addCacheMiss(local_id, CACHE_MISS_TYPE_TOTAL);

+        cache_miss_type = CACHE_MISS_TYPE_TOTAL;

+    }

+

+    return false;

+}

+

+void LLViewerRegion::addCacheMissFull(const U32 local_id)

+{

+    addCacheMiss(local_id, CACHE_MISS_TYPE_TOTAL);

+}

+

+void LLViewerRegion::requestCacheMisses()

+{

+    if (!mCacheMissList.size())

+    {

+        return;

+    }

+

+    LLMessageSystem* msg = gMessageSystem;

+    bool start_new_message = true;

+    S32 blocks = 0;

+

+    //send requests for all cache-missed objects

+    for (CacheMissItem::cache_miss_list_t::iterator iter = mCacheMissList.begin(); iter != mCacheMissList.end(); ++iter)

+    {

+        if (start_new_message)

+        {

+            msg->newMessageFast(_PREHASH_RequestMultipleObjects);

+            msg->nextBlockFast(_PREHASH_AgentData);

+            msg->addUUIDFast(_PREHASH_AgentID, gAgent.getID());

+            msg->addUUIDFast(_PREHASH_SessionID, gAgent.getSessionID());

+            start_new_message = false;

+        }

+

+        msg->nextBlockFast(_PREHASH_ObjectData);

+        msg->addU8Fast(_PREHASH_CacheMissType, (*iter).mType);

+        msg->addU32Fast(_PREHASH_ID, (*iter).mID);

+

+        LL_DEBUGS("AnimatedObjects") << "Requesting cache missed object " << (*iter).mID << LL_ENDL;

+

+        blocks++;

+

+        if (blocks >= 255)

+        {

+            sendReliableMessage();

+            start_new_message = true;

+            blocks = 0;

+        }

+    }

+

+    // finish any pending message

+    if (!start_new_message)

+    {

+        sendReliableMessage();

+    }

+

+    mCacheDirty = true ;

+    // LL_INFOS() << "KILLDEBUG Sent cache miss full " << full_count << " crc " << crc_count << LL_ENDL;

+    LLViewerStatsRecorder::instance().requestCacheMissesEvent(mCacheMissList.size());

+

+    mCacheMissList.clear();

+}

+

+void LLViewerRegion::dumpCache()

+{

+    const S32 BINS = 4;

+    S32 hit_bin[BINS];

+    S32 change_bin[BINS];

+

+    S32 i;

+    for (i = 0; i < BINS; ++i)

+    {

+        hit_bin[i] = 0;

+        change_bin[i] = 0;

+    }

+

+    LLVOCacheEntry *entry;

+    for(LLVOCacheEntry::vocache_entry_map_t::iterator iter = mImpl->mCacheMap.begin(); iter != mImpl->mCacheMap.end(); ++iter)

+    {

+        entry = iter->second ;

+

+        S32 hits = entry->getHitCount();

+        S32 changes = entry->getCRCChangeCount();

+

+        hits = llclamp(hits, 0, BINS-1);

+        changes = llclamp(changes, 0, BINS-1);

+

+        hit_bin[hits]++;

+        change_bin[changes]++;

+    }

+

+    LL_INFOS() << "Count " << mImpl->mCacheMap.size() << LL_ENDL;

+    for (i = 0; i < BINS; i++)

+    {

+        LL_INFOS() << "Hits " << i << " " << hit_bin[i] << LL_ENDL;

+    }

+    for (i = 0; i < BINS; i++)

+    {

+        LL_INFOS() << "Changes " << i << " " << change_bin[i] << LL_ENDL;

+    }

+    // TODO - add overrides cache too

+}

+

+void LLViewerRegion::unpackRegionHandshake()

+{

+    LLMessageSystem *msg = gMessageSystem;

+

+    U64 region_flags = 0;

+    U64 region_protocols = 0;

+    U8 sim_access;

+    std::string sim_name;

+    LLUUID sim_owner;

+    bool is_estate_manager;

+    F32 water_height;

+    F32 billable_factor;

+    LLUUID cache_id;

+

+    msg->getU8      ("RegionInfo", "SimAccess", sim_access);

+    msg->getString  ("RegionInfo", "SimName", sim_name);

+    msg->getUUID    ("RegionInfo", "SimOwner", sim_owner);

+    msg->getBOOL    ("RegionInfo", "IsEstateManager", is_estate_manager);

+    msg->getF32     ("RegionInfo", "WaterHeight", water_height);

+    msg->getF32     ("RegionInfo", "BillableFactor", billable_factor);

+    msg->getUUID    ("RegionInfo", "CacheID", cache_id );

+

+    if (msg->has(_PREHASH_RegionInfo4))

+    {

+        msg->getU64Fast(_PREHASH_RegionInfo4, _PREHASH_RegionFlagsExtended, region_flags);

+        msg->getU64Fast(_PREHASH_RegionInfo4, _PREHASH_RegionProtocols, region_protocols);

+    }

+    else

+    {

+        U32 flags = 0;

+        msg->getU32Fast(_PREHASH_RegionInfo, _PREHASH_RegionFlags, flags);

+        region_flags = flags;

+    }

+

+    setRegionFlags(region_flags);

+    setRegionProtocols(region_protocols);

+    setSimAccess(sim_access);

+    setRegionNameAndZone(sim_name);

+    setOwner(sim_owner);

+    setIsEstateManager(is_estate_manager);

+    setWaterHeight(water_height);

+    setBillableFactor(billable_factor);

+    setCacheID(cache_id);

+

+    LLUUID region_id;

+    msg->getUUID("RegionInfo2", "RegionID", region_id);

+    setRegionID(region_id);

+

+    // Retrieve the CR-53 (Homestead/Land SKU) information

+    S32 classID = 0;

+    S32 cpuRatio = 0;

+    std::string coloName;

+    std::string productSKU;

+    std::string productName;

+

+    // the only reasonable way to decide if we actually have any data is to

+    // check to see if any of these fields have positive sizes

+    if (msg->getSize("RegionInfo3", "ColoName") > 0 ||

+        msg->getSize("RegionInfo3", "ProductSKU") > 0 ||

+        msg->getSize("RegionInfo3", "ProductName") > 0)

+    {

+        msg->getS32     ("RegionInfo3", "CPUClassID",  classID);

+        msg->getS32     ("RegionInfo3", "CPURatio",    cpuRatio);

+        msg->getString  ("RegionInfo3", "ColoName",    coloName);

+        msg->getString  ("RegionInfo3", "ProductSKU",  productSKU);

+        msg->getString  ("RegionInfo3", "ProductName", productName);

+

+        mClassID = classID;

+        mCPURatio = cpuRatio;

+        mColoName = coloName;

+        mProductSKU = productSKU;

+        mProductName = productName;

+    }

+

+    mCentralBakeVersion = region_protocols & 1; // was (S32)gSavedSettings.getBOOL("UseServerTextureBaking");

+    LLVLComposition *compp = getComposition();

+    if (compp)

+    {

+        LLUUID tmp_id;

+

+        bool changed = false;

+

+        // Get the 4 textures for land

+        msg->getUUID("RegionInfo", "TerrainDetail0", tmp_id);

+        changed |= (tmp_id != compp->getDetailTextureID(0));

+        compp->setDetailTextureID(0, tmp_id);

+

+        msg->getUUID("RegionInfo", "TerrainDetail1", tmp_id);

+        changed |= (tmp_id != compp->getDetailTextureID(1));

+        compp->setDetailTextureID(1, tmp_id);

+

+        msg->getUUID("RegionInfo", "TerrainDetail2", tmp_id);

+        changed |= (tmp_id != compp->getDetailTextureID(2));

+        compp->setDetailTextureID(2, tmp_id);

+

+        msg->getUUID("RegionInfo", "TerrainDetail3", tmp_id);

+        changed |= (tmp_id != compp->getDetailTextureID(3));

+        compp->setDetailTextureID(3, tmp_id);

+

+        // Get the start altitude and range values for land textures

+        F32 tmp_f32;

+        msg->getF32("RegionInfo", "TerrainStartHeight00", tmp_f32);

+        changed |= (tmp_f32 != compp->getStartHeight(0));

+        compp->setStartHeight(0, tmp_f32);

+

+        msg->getF32("RegionInfo", "TerrainStartHeight01", tmp_f32);

+        changed |= (tmp_f32 != compp->getStartHeight(1));

+        compp->setStartHeight(1, tmp_f32);

+

+        msg->getF32("RegionInfo", "TerrainStartHeight10", tmp_f32);

+        changed |= (tmp_f32 != compp->getStartHeight(2));

+        compp->setStartHeight(2, tmp_f32);

+

+        msg->getF32("RegionInfo", "TerrainStartHeight11", tmp_f32);

+        changed |= (tmp_f32 != compp->getStartHeight(3));

+        compp->setStartHeight(3, tmp_f32);

+

+

+        msg->getF32("RegionInfo", "TerrainHeightRange00", tmp_f32);

+        changed |= (tmp_f32 != compp->getHeightRange(0));

+        compp->setHeightRange(0, tmp_f32);

+

+        msg->getF32("RegionInfo", "TerrainHeightRange01", tmp_f32);

+        changed |= (tmp_f32 != compp->getHeightRange(1));

+        compp->setHeightRange(1, tmp_f32);

+

+        msg->getF32("RegionInfo", "TerrainHeightRange10", tmp_f32);

+        changed |= (tmp_f32 != compp->getHeightRange(2));

+        compp->setHeightRange(2, tmp_f32);

+

+        msg->getF32("RegionInfo", "TerrainHeightRange11", tmp_f32);

+        changed |= (tmp_f32 != compp->getHeightRange(3));

+        compp->setHeightRange(3, tmp_f32);

+

+        // If this is an UPDATE (params already ready, we need to regenerate

+        // all of our terrain stuff, by

+        if (compp->getParamsReady())

+        {

+            // Update if the land changed

+            if (changed)

+            {

+                getLand().dirtyAllPatches();

+            }

+        }

+        else

+        {

+            compp->setParamsReady();

+        }

+    }

+

+

+    // Now that we have the name, we can load the cache file

+    // off disk.

+    loadObjectCache();

+

+    // After loading cache, signal that simulator can start

+    // sending data.

+    // TODO: Send all upstream viewer->sim handshake info here.

+    LLHost host = msg->getSender();

+    msg->newMessage("RegionHandshakeReply");

+    msg->nextBlock("AgentData");

+    msg->addUUID("AgentID", gAgent.getID());

+    msg->addUUID("SessionID", gAgent.getSessionID());

+    msg->nextBlock("RegionInfo");

+

+    U32 flags = 0;

+    flags |= REGION_HANDSHAKE_SUPPORTS_SELF_APPEARANCE;

+

+    if(sVOCacheCullingEnabled)

+    {

+        flags |= 0x00000001; //set the bit 0 to be 1 to ask sim to send all cacheable objects.

+    }

+    if(mImpl->mCacheMap.empty())

+    {

+        flags |= 0x00000002; //set the bit 1 to be 1 to tell sim the cache file is empty, no need to send cache probes.

+    }

+    msg->addU32("Flags", flags );

+    msg->sendReliable(host);

+

+    mRegionTimer.reset(); //reset region timer.

+}

+

+// static

+void LLViewerRegionImpl::buildCapabilityNames(LLSD& capabilityNames)

+{

+    capabilityNames.append("AbuseCategories");

+    capabilityNames.append("AcceptFriendship");

+    capabilityNames.append("AcceptGroupInvite"); // ReadOfflineMsgs recieved messages only!!!

+    capabilityNames.append("AgentPreferences");

+    capabilityNames.append("AgentProfile");

+    capabilityNames.append("AgentState");

+    capabilityNames.append("AttachmentResources");

+    capabilityNames.append("AvatarPickerSearch");

+    capabilityNames.append("AvatarRenderInfo");

+    capabilityNames.append("CharacterProperties");

+    capabilityNames.append("ChatSessionRequest");

+    capabilityNames.append("CopyInventoryFromNotecard");

+    capabilityNames.append("CreateInventoryCategory");

+    capabilityNames.append("DeclineFriendship");

+    capabilityNames.append("DeclineGroupInvite"); // ReadOfflineMsgs recieved messages only!!!

+    capabilityNames.append("DispatchRegionInfo");

+    capabilityNames.append("DirectDelivery");

+    capabilityNames.append("EnvironmentSettings");

+    capabilityNames.append("EstateAccess");

+    capabilityNames.append("EstateChangeInfo");

+    capabilityNames.append("EventQueueGet");

+    capabilityNames.append("ExtEnvironment");

+

+    capabilityNames.append("FetchLib2");

+    capabilityNames.append("FetchLibDescendents2");

+    capabilityNames.append("FetchInventory2");

+    capabilityNames.append("FetchInventoryDescendents2");

+    capabilityNames.append("IncrementCOFVersion");

+    AISAPI::getCapNames(capabilityNames);

+

+    capabilityNames.append("InterestList");

+

+    capabilityNames.append("InventoryThumbnailUpload");

+    capabilityNames.append("GetDisplayNames");

+    capabilityNames.append("GetExperiences");

+    capabilityNames.append("AgentExperiences");

+    capabilityNames.append("FindExperienceByName");

+    capabilityNames.append("GetExperienceInfo");

+    capabilityNames.append("GetAdminExperiences");

+    capabilityNames.append("GetCreatorExperiences");

+    capabilityNames.append("ExperiencePreferences");

+    capabilityNames.append("GroupExperiences");

+    capabilityNames.append("UpdateExperience");

+    capabilityNames.append("IsExperienceAdmin");

+    capabilityNames.append("IsExperienceContributor");

+    capabilityNames.append("RegionExperiences");

+    capabilityNames.append("ExperienceQuery");

+    capabilityNames.append("GetMetadata");

+    capabilityNames.append("GetObjectCost");

+    capabilityNames.append("GetObjectPhysicsData");

+    capabilityNames.append("GroupAPIv1");

+    capabilityNames.append("GroupMemberData");

+    capabilityNames.append("GroupProposalBallot");

+    capabilityNames.append("HomeLocation");

+    capabilityNames.append("LandResources");

+    capabilityNames.append("LSLSyntax");

+    capabilityNames.append("MapLayer");

+    capabilityNames.append("MapLayerGod");

+    capabilityNames.append("MeshUploadFlag");

+    capabilityNames.append("ModifyMaterialParams");

+    capabilityNames.append("NavMeshGenerationStatus");

+    capabilityNames.append("NewFileAgentInventory");

+    capabilityNames.append("ObjectAnimation");

+    capabilityNames.append("ObjectMedia");

+    capabilityNames.append("ObjectMediaNavigate");

+    capabilityNames.append("ObjectNavMeshProperties");

+    capabilityNames.append("ParcelPropertiesUpdate");

+    capabilityNames.append("ParcelVoiceInfoRequest");

+    capabilityNames.append("ProductInfoRequest");

+    capabilityNames.append("ProvisionVoiceAccountRequest");

+    capabilityNames.append("ReadOfflineMsgs"); // Requires to respond reliably: AcceptFriendship, AcceptGroupInvite, DeclineFriendship, DeclineGroupInvite

+    capabilityNames.append("RegionObjects");

+    capabilityNames.append("RemoteParcelRequest");

+    capabilityNames.append("RenderMaterials");

+    capabilityNames.append("RequestTextureDownload");

+    capabilityNames.append("ResourceCostSelected");

+    capabilityNames.append("RetrieveNavMeshSrc");

+    capabilityNames.append("SearchStatRequest");

+    capabilityNames.append("SearchStatTracking");

+    capabilityNames.append("SendPostcard");

+    capabilityNames.append("SendUserReport");

+    capabilityNames.append("SendUserReportWithScreenshot");

+    capabilityNames.append("ServerReleaseNotes");

+    capabilityNames.append("SetDisplayName");

+    capabilityNames.append("SimConsoleAsync");

+    capabilityNames.append("SimulatorFeatures");

+    capabilityNames.append("StartGroupProposal");

+    capabilityNames.append("TerrainNavMeshProperties");

+    capabilityNames.append("TextureStats");

+    capabilityNames.append("UntrustedSimulatorMessage");

+    capabilityNames.append("UpdateAgentInformation");

+    capabilityNames.append("UpdateAgentLanguage");

+    capabilityNames.append("UpdateAvatarAppearance");

+    capabilityNames.append("UpdateGestureAgentInventory");

+    capabilityNames.append("UpdateGestureTaskInventory");

+    capabilityNames.append("UpdateNotecardAgentInventory");

+    capabilityNames.append("UpdateNotecardTaskInventory");

+    capabilityNames.append("UpdateScriptAgent");

+    capabilityNames.append("UpdateScriptTask");

+    capabilityNames.append("UpdateSettingsAgentInventory");

+    capabilityNames.append("UpdateSettingsTaskInventory");

+    capabilityNames.append("UploadAgentProfileImage");

+    capabilityNames.append("UpdateMaterialAgentInventory");

+    capabilityNames.append("UpdateMaterialTaskInventory");

+    capabilityNames.append("UploadBakedTexture");

+    capabilityNames.append("UserInfo");

+    capabilityNames.append("ViewerAsset");

+    capabilityNames.append("ViewerBenefits");

+    capabilityNames.append("ViewerMetrics");

+    capabilityNames.append("ViewerStartAuction");

+    capabilityNames.append("ViewerStats");

+

+    // Please add new capabilities alphabetically to reduce

+    // merge conflicts.

+}

+

+void LLViewerRegion::setSeedCapability(const std::string& url)

+{

+    if (getCapability("Seed") == url)

+    {

+        setCapabilityDebug("Seed", url);

+        LL_WARNS("CrossingCaps") <<  "Received duplicate seed capability for " << getRegionID() << ", posting to seed " <<

+                url << LL_ENDL;

+

+        //Instead of just returning we build up a second set of seed caps and compare them

+        //to the "original" seed cap received and determine why there is problem!

+        std::string coroname =

+            LLCoros::instance().launch("LLEnvironmentRequest::requestBaseCapabilitiesCompleteCoro",

+            boost::bind(&LLViewerRegionImpl::requestBaseCapabilitiesCompleteCoro, getHandle()));

+

+        // setSeedCapability can be called from other coros,

+        // launch() acts like a suspend()

+        // Make sure we are still good to do

+        LLCoros::checkStop();

+

+        return;

+    }

+

+    delete mImpl->mEventPoll;

+    mImpl->mEventPoll = NULL;

+

+    mImpl->mCapabilities.clear();

+    setCapability("Seed", url);

+

+    std::string coroname =

+        LLCoros::instance().launch("LLViewerRegionImpl::requestBaseCapabilitiesCoro",

+        boost::bind(&LLViewerRegionImpl::requestBaseCapabilitiesCoro, getHandle()));

+

+    // setSeedCapability can be called from other coros,

+    // launch() acts like a suspend()

+    // Make sure we are still good to do

+    LLCoros::checkStop();

+

+    LL_INFOS("AppInit", "Capabilities") << "Launching " << coroname << " requesting seed capabilities from " << url << " for region " << getRegionID() << LL_ENDL;

+}

+

+S32 LLViewerRegion::getNumSeedCapRetries()

+{

+    return mImpl->mSeedCapAttempts;

+}

+

+void LLViewerRegion::setCapability(const std::string& name, const std::string& url)

+{

+    if(name == "EventQueueGet")

+    {

+        delete mImpl->mEventPoll;

+        mImpl->mEventPoll = NULL;

+        mImpl->mEventPoll = new LLEventPoll(url, getHost());

+    }

+    else if(name == "UntrustedSimulatorMessage")

+    {

+        mImpl->mHost.setUntrustedSimulatorCap(url);

+    }

+    else if (name == "SimulatorFeatures")

+    {

+        mImpl->mCapabilities["SimulatorFeatures"] = url;

+        requestSimulatorFeatures();

+    }

+    else

+    {

+        mImpl->mCapabilities[name] = url;

+        if(name == "ViewerAsset")

+        {

+            /*==============================================================*/

+            // The following inserted lines are a hack for testing MAINT-7081,

+            // which is why the indentation and formatting are left ugly.

+            const char* VIEWERASSET = getenv("VIEWERASSET");

+            if (VIEWERASSET)

+            {

+                mImpl->mCapabilities[name] = VIEWERASSET;

+                mViewerAssetUrl = VIEWERASSET;

+            }

+            else

+            /*==============================================================*/

+            mViewerAssetUrl = url;

+        }

+    }

+}

+

+void LLViewerRegion::setCapabilityDebug(const std::string& name, const std::string& url)

+{

+    // Continue to not add certain caps, as we do in setCapability. This is so they match up when we check them later.

+    if ( ! ( name == "EventQueueGet" || name == "UntrustedSimulatorMessage" || name == "SimulatorFeatures" ) )

+    {

+        mImpl->mSecondCapabilitiesTracker[name] = url;

+        if(name == "ViewerAsset")

+        {

+            /*==============================================================*/

+            // The following inserted lines are a hack for testing MAINT-7081,

+            // which is why the indentation and formatting are left ugly.

+            const char* VIEWERASSET = getenv("VIEWERASSET");

+            if (VIEWERASSET)

+            {

+                mImpl->mSecondCapabilitiesTracker[name] = VIEWERASSET;

+                mViewerAssetUrl = VIEWERASSET;

+            }

+            else

+            /*==============================================================*/

+            mViewerAssetUrl = url;

+        }

+    }

+}

+

+std::string LLViewerRegion::getCapabilityDebug(const std::string& name) const

+{

+    CapabilityMap::const_iterator iter = mImpl->mSecondCapabilitiesTracker.find(name);

+    if (iter == mImpl->mSecondCapabilitiesTracker.end())

+    {

+        return "";

+    }

+

+    return iter->second;

+}

+

+

+bool LLViewerRegion::isSpecialCapabilityName(const std::string &name)

+{

+    return name == "EventQueueGet" || name == "UntrustedSimulatorMessage";

+}

+

+std::string LLViewerRegion::getCapability(const std::string& name) const

+{

+    if (!capabilitiesReceived() && (name!=std::string("Seed")) && (name!=std::string("ObjectMedia")))

+    {

+        LL_WARNS() << "getCapability called before caps received for " << name << LL_ENDL;

+    }

+

+    CapabilityMap::const_iterator iter = mImpl->mCapabilities.find(name);

+    if(iter == mImpl->mCapabilities.end())

+    {

+        return "";

+    }

+

+    return iter->second;

+}

+

+bool LLViewerRegion::isCapabilityAvailable(const std::string& name) const

+{

+    if (!capabilitiesReceived() && (name!=std::string("Seed")) && (name!=std::string("ObjectMedia")))

+    {

+        LL_WARNS() << "isCapabilityAvailable called before caps received for " << name << LL_ENDL;

+    }

+

+    CapabilityMap::const_iterator iter = mImpl->mCapabilities.find(name);

+    if(iter == mImpl->mCapabilities.end())

+    {

+        return false;

+    }

+

+    return true;

+}

+

+bool LLViewerRegion::capabilitiesReceived() const

+{

+    return mCapabilitiesState == CAPABILITIES_STATE_RECEIVED;

+}

+

+bool LLViewerRegion::capabilitiesError() const

+{

+    return mCapabilitiesState == CAPABILITIES_STATE_ERROR;

+}

+

+void LLViewerRegion::setCapabilitiesReceived(bool received)

+{

+    mCapabilitiesState = received ? CAPABILITIES_STATE_RECEIVED : CAPABILITIES_STATE_INIT;

+

+    // Tell interested parties that we've received capabilities,

+    // so that they can safely use getCapability().

+    if (received)

+    {

+        mCapabilitiesReceivedSignal(getRegionID(), this);

+

+        LLFloaterPermsDefault::sendInitialPerms();

+

+        // This is a single-shot signal. Forget callbacks to save resources.

+        mCapabilitiesReceivedSignal.disconnect_all_slots();

+

+        // Set the region to the desired interest list mode

+        setInterestListMode(gAgent.getInterestListMode());

+    }

+}

+

+void LLViewerRegion::setCapabilitiesError()

+{

+    mCapabilitiesState = CAPABILITIES_STATE_ERROR;

+}

+

+boost::signals2::connection LLViewerRegion::setCapabilitiesReceivedCallback(const caps_received_signal_t::slot_type& cb)

+{

+    return mCapabilitiesReceivedSignal.connect(cb);

+}

+

+void LLViewerRegion::logActiveCapabilities() const

+{

+    log_capabilities(mImpl->mCapabilities);

+}

+

+

+bool LLViewerRegion::requestPostCapability(const std::string &capName, LLSD &postData, httpCallback_t cbSuccess, httpCallback_t cbFailure)

+{

+    std::string url = getCapability(capName);

+

+    if (url.empty())

+    {

+        LL_WARNS("Region") << "Could not retrieve region " << getRegionID()

+            << " POST capability \"" << capName << "\"" << LL_ENDL;

+        return false;

+    }

+

+    LLCoreHttpUtil::HttpCoroutineAdapter::callbackHttpPost(url, gAgent.getAgentPolicy(), postData, cbSuccess, cbFailure);

+    return true;

+}

+

+bool LLViewerRegion::requestGetCapability(const std::string &capName, httpCallback_t cbSuccess, httpCallback_t cbFailure)

+{

+    std::string url;

+

+    url = getCapability(capName);

+

+    if (url.empty())

+    {

+        LL_WARNS("Region") << "Could not retrieve region " << getRegionID()

+                           << " GET capability \"" << capName << "\"" << LL_ENDL;

+        return false;

+    }

+

+    LLCoreHttpUtil::HttpCoroutineAdapter::callbackHttpGet(url, gAgent.getAgentPolicy(), cbSuccess, cbFailure);

+    return true;

+}

+

+bool LLViewerRegion::requestDelCapability(const std::string &capName, httpCallback_t cbSuccess, httpCallback_t cbFailure)

+{

+    std::string url;

+

+    url = getCapability(capName);

+

+    if (url.empty())

+    {

+        LL_WARNS("Region") << "Could not retrieve region " << getRegionID() << " DEL capability \"" << capName << "\"" << LL_ENDL;

+        return false;

+    }

+

+    LLCoreHttpUtil::HttpCoroutineAdapter::callbackHttpDel(url, gAgent.getAgentPolicy(), cbSuccess, cbFailure);

+    return true;

+}

+

+void LLViewerRegion::setInterestListMode(const std::string &new_mode)

+{

+    if (new_mode != mInterestListMode)

+    {

+        mInterestListMode = new_mode;

+

+        if (mInterestListMode != IL_MODE_DEFAULT && mInterestListMode != IL_MODE_360)

+        {

+            LL_WARNS("360Capture") << "Region " << getRegionID() << " setInterestListMode() invalid interest list mode: "

+                << mInterestListMode << ", setting to default" << LL_ENDL;

+            mInterestListMode = IL_MODE_DEFAULT;

+        }

+

+        LLSD body;

+        body["mode"] = mInterestListMode;

+        if (requestPostCapability("InterestList", body,

+                                  [](const LLSD &response) {

+                                      LL_DEBUGS("360Capture") << "InterestList capability responded: \n"

+                                          << ll_pretty_print_sd(response) << LL_ENDL;

+                                  }))

+        {

+            LL_DEBUGS("360Capture") << "Region " << getRegionID()

+                                    << " Successfully posted an InterestList capability request with payload: \n"

+                                    << ll_pretty_print_sd(body) << LL_ENDL;

+        }

+        else

+        {

+            LL_WARNS("360Capture") << "Region " << getRegionID()

+                                   << " Unable to post an InterestList capability request with payload: \n"

+                                   << ll_pretty_print_sd(body) << LL_ENDL;

+        }

+    }

+    else

+    {

+        LL_DEBUGS("360Capture") << "Region " << getRegionID() << "No change, skipping Interest List mode POST to "

+                                << new_mode << " mode" << LL_ENDL;

+    }

+}

+

+

+void LLViewerRegion::resetInterestList()

+{

+    if (requestDelCapability("InterestList", [](const LLSD &response) {

+                            LL_DEBUGS("360Capture") << "InterestList capability DEL responded: \n" << ll_pretty_print_sd(response) << LL_ENDL;

+                        }))

+    {

+        LL_DEBUGS("360Capture") << "Region " << getRegionID() << " Successfully reset InterestList capability" << LL_ENDL;

+    }

+    else

+    {

+        LL_WARNS("360Capture") << "Region " << getRegionID() << " Unable to DEL InterestList capability request" << LL_ENDL;

+    }

+}

+

+

+LLSpatialPartition *LLViewerRegion::getSpatialPartition(U32 type)

+{

+    if (type < mImpl->mObjectPartition.size() && type < PARTITION_VO_CACHE)

+    {

+        return (LLSpatialPartition*)mImpl->mObjectPartition[type];

+    }

+    return NULL;

+}

+

+LLVOCachePartition* LLViewerRegion::getVOCachePartition()

+{

+    if(PARTITION_VO_CACHE < mImpl->mObjectPartition.size())

+    {

+        return (LLVOCachePartition*)mImpl->mObjectPartition[PARTITION_VO_CACHE];

+    }

+    return NULL;

+}

+

+// the viewer can not yet distinquish between normal- and estate-owned objects

+// so we collapse these two bits and enable the UI if either are set

+const U64 ALLOW_RETURN_ENCROACHING_OBJECT = REGION_FLAGS_ALLOW_RETURN_ENCROACHING_OBJECT

+                                            | REGION_FLAGS_ALLOW_RETURN_ENCROACHING_ESTATE_OBJECT;

+

+bool LLViewerRegion::objectIsReturnable(const LLVector3& pos, const std::vector<LLBBox>& boxes) const

+{

+    return (mParcelOverlay != NULL)

+        && (mParcelOverlay->isOwnedSelf(pos)

+            || mParcelOverlay->isOwnedGroup(pos)

+            || (getRegionFlag(ALLOW_RETURN_ENCROACHING_OBJECT)

+                && mParcelOverlay->encroachesOwned(boxes)) );

+}

+

+bool LLViewerRegion::childrenObjectReturnable( const std::vector<LLBBox>& boxes ) const

+{

+    bool result = false;

+    result = ( mParcelOverlay && mParcelOverlay->encroachesOnUnowned( boxes ) ) ? 1 : 0;

+    return result;

+}

+

+bool LLViewerRegion::objectsCrossParcel(const std::vector<LLBBox>& boxes) const

+{

+    return mParcelOverlay && mParcelOverlay->encroachesOnNearbyParcel(boxes);

+}

+

+void LLViewerRegion::getNeighboringRegions( std::vector<LLViewerRegion*>& uniqueRegions )

+{

+    mImpl->mLandp->getNeighboringRegions( uniqueRegions );

+}

+void LLViewerRegion::getNeighboringRegionsStatus( std::vector<S32>& regions )

+{

+    mImpl->mLandp->getNeighboringRegionsStatus( regions );

+}

+void LLViewerRegion::showReleaseNotes()

+{

+    std::string url = this->getCapability("ServerReleaseNotes");

+

+    if (url.empty()) {

+        // HACK haven't received the capability yet, we'll wait until

+        // it arives.

+        mReleaseNotesRequested = true;

+        return;

+    }

+

+    LLWeb::loadURL(url);

+    mReleaseNotesRequested = false;

+}

+

+std::string LLViewerRegion::getDescription() const

+{

+    return stringize(*this);

+}

+

+bool LLViewerRegion::meshUploadEnabled() const

+{

+    return (mSimulatorFeatures.has("MeshUploadEnabled") &&

+        mSimulatorFeatures["MeshUploadEnabled"].asBoolean());

+}

+

+bool LLViewerRegion::bakesOnMeshEnabled() const

+{

+    return (mSimulatorFeatures.has("BakesOnMeshEnabled") &&

+        mSimulatorFeatures["BakesOnMeshEnabled"].asBoolean());

+}

+

+bool LLViewerRegion::meshRezEnabled() const

+{

+    return (mSimulatorFeatures.has("MeshRezEnabled") &&

+                mSimulatorFeatures["MeshRezEnabled"].asBoolean());

+}

+

+bool LLViewerRegion::dynamicPathfindingEnabled() const

+{

+    return ( mSimulatorFeatures.has("DynamicPathfindingEnabled") &&

+             mSimulatorFeatures["DynamicPathfindingEnabled"].asBoolean());

+}

+

+bool LLViewerRegion::avatarHoverHeightEnabled() const

+{

+    return ( mSimulatorFeatures.has("AvatarHoverHeightEnabled") &&

+             mSimulatorFeatures["AvatarHoverHeightEnabled"].asBoolean());

+}

+/* Static Functions */

+

+void log_capabilities(const CapabilityMap &capmap)

+{

+    S32 count = 0;

+    CapabilityMap::const_iterator iter;

+    for (iter = capmap.begin(); iter != capmap.end(); ++iter, ++count)

+    {

+        if (!iter->second.empty())

+        {

+            LL_INFOS() << "log_capabilities: " << iter->first << " URL is " << iter->second << LL_ENDL;

+        }

+    }

+    LL_INFOS() << "log_capabilities: Dumped " << count << " entries." << LL_ENDL;

+}

+void LLViewerRegion::resetMaterialsCapThrottle()

+{

+    F32 requests_per_sec =  1.0f; // original default;

+    if (   mSimulatorFeatures.has("RenderMaterialsCapability")

+        && mSimulatorFeatures["RenderMaterialsCapability"].isReal() )

+    {

+        requests_per_sec = mSimulatorFeatures["RenderMaterialsCapability"].asReal();

+        if ( requests_per_sec == 0.0f )

+        {

+            requests_per_sec = 1.0f;

+            LL_WARNS("Materials")

+                << "region '" << getName()

+                << "' returned zero for RenderMaterialsCapability; using default "

+                << requests_per_sec << " per second"

+                << LL_ENDL;

+        }

+        LL_DEBUGS("Materials") << "region '" << getName()

+                               << "' RenderMaterialsCapability " << requests_per_sec

+                               << LL_ENDL;

+    }

+    else

+    {

+        LL_DEBUGS("Materials")

+            << "region '" << getName()

+            << "' did not return RenderMaterialsCapability, using default "

+            << requests_per_sec << " per second"

+            << LL_ENDL;

+    }

+

+    mMaterialsCapThrottleTimer.resetWithExpiry( 1.0f / requests_per_sec );

+}

+

+U32 LLViewerRegion::getMaxMaterialsPerTransaction() const

+{

+    U32 max_entries = 50; // original hard coded default

+    if (   mSimulatorFeatures.has( "MaxMaterialsPerTransaction" )

+        && mSimulatorFeatures[ "MaxMaterialsPerTransaction" ].isInteger())

+    {

+        max_entries = mSimulatorFeatures[ "MaxMaterialsPerTransaction" ].asInteger();

+    }

+    return max_entries;

+}

+

+std::string LLViewerRegion::getSimHostName()

+{

+    if (mSimulatorFeaturesReceived)

+    {

+        return mSimulatorFeatures.has("HostName") ? mSimulatorFeatures["HostName"].asString() : getHost().getHostName();

+    }

+    return std::string("...");

+}

+

+void LLViewerRegion::applyCacheMiscExtras(LLViewerObject* obj)

+{

+    LL_PROFILE_ZONE_SCOPED_CATEGORY_DISPLAY;

+    llassert(obj);

+

+    U32 local_id = obj->getLocalID();

+    auto iter = mImpl->mGLTFOverridesLLSD.find(local_id);

+    if (iter != mImpl->mGLTFOverridesLLSD.end())

+    {

+        llassert(iter->second.mGLTFMaterial.size() == iter->second.mSides.size());

+

+        for (auto& side : iter->second.mGLTFMaterial)

+        {

+            obj->setTEGLTFMaterialOverride(side.first, side.second);

+        }

+    }

+}

+