Cleaning up miscellaneous differences between the pathfinding repository and the latest viewer-development.

1 files changed, 1563 insertions, 1568 deletions

diff --git a/indra/newview/llviewerdisplay.cpp b/indra/newview/llviewerdisplay.cpp
index 42309349b0..0adb187dd2 100644
--- a/indra/newview/llviewerdisplay.cpp
+++ b/indra/newview/llviewerdisplay.cpp
@@ -1,1568 +1,1563 @@
-/** 

- * @file llviewerdisplay.cpp

- * @brief LLViewerDisplay class implementation

- *

- * $LicenseInfo:firstyear=2004&license=viewerlgpl$

- * Second Life Viewer Source Code

- * Copyright (C) 2010, 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 "llviewerdisplay.h"

-

-#include "llgl.h"

-#include "llrender.h"

-#include "llglheaders.h"

-#include "llagent.h"

-#include "llagentcamera.h"

-#include "llviewercontrol.h"

-#include "llcoord.h"

-#include "llcriticaldamp.h"

-#include "lldir.h"

-#include "lldynamictexture.h"

-#include "lldrawpoolalpha.h"

-#include "llfeaturemanager.h"

-//#include "llfirstuse.h"

-#include "llhudmanager.h"

-#include "llimagebmp.h"

-#include "llmemory.h"

-#include "llselectmgr.h"

-#include "llsky.h"

-#include "llstartup.h"

-#include "lltoolfocus.h"

-#include "lltoolmgr.h"

-#include "lltooldraganddrop.h"

-#include "lltoolpie.h"

-#include "lltracker.h"

-#include "lltrans.h"

-#include "llui.h"

-#include "llviewercamera.h"

-#include "llviewerobjectlist.h"

-#include "llviewerparcelmgr.h"

-#include "llviewerwindow.h"

-#include "llvoavatarself.h"

-#include "llvograss.h"

-#include "llworld.h"

-#include "pipeline.h"

-#include "llspatialpartition.h"

-#include "llappviewer.h"

-#include "llstartup.h"

-#include "llviewershadermgr.h"

-#include "llfasttimer.h"

-#include "llfloatertools.h"

-#include "llviewertexturelist.h"

-#include "llfocusmgr.h"

-#include "llcubemap.h"

-#include "llviewerregion.h"

-#include "lldrawpoolwater.h"

-#include "lldrawpoolbump.h"

-#include "llwlparammanager.h"

-#include "llwaterparammanager.h"

-#include "llpostprocess.h"

-#include "LLPathingLib.h"

-#include "llfloaterpathfindingconsole.h"

-#include "llfloaterreg.h"

-

-extern LLPointer<LLViewerTexture> gStartTexture;

-

-LLPointer<LLViewerTexture> gDisconnectedImagep = NULL;

-

-// used to toggle renderer back on after teleport

-const F32 TELEPORT_RENDER_DELAY = 20.f; // Max time a teleport is allowed to take before we raise the curtain

-const F32 TELEPORT_ARRIVAL_DELAY = 2.f; // Time to preload the world before raising the curtain after we've actually already arrived.

-const F32 TELEPORT_LOCAL_DELAY = 1.0f;  // Delay to prevent teleports after starting an in-sim teleport.

-BOOL		 gTeleportDisplay = FALSE;

-LLFrameTimer gTeleportDisplayTimer;

-LLFrameTimer gTeleportArrivalTimer;

-const F32		RESTORE_GL_TIME = 5.f;	// Wait this long while reloading textures before we raise the curtain

-

-BOOL gForceRenderLandFence = FALSE;

-BOOL gDisplaySwapBuffers = FALSE;

-BOOL gDepthDirty = FALSE;

-BOOL gResizeScreenTexture = FALSE;

-BOOL gWindowResized = FALSE;

-BOOL gSnapshot = FALSE;

-

-U32 gRecentFrameCount = 0; // number of 'recent' frames

-LLFrameTimer gRecentFPSTime;

-LLFrameTimer gRecentMemoryTime;

-

-// Rendering stuff

-void pre_show_depth_buffer();

-void post_show_depth_buffer();

-void render_ui(F32 zoom_factor = 1.f, int subfield = 0);

-void render_hud_attachments();

-void render_ui_3d();

-void render_ui_2d();

-void render_disconnected_background();

-

-void display_startup()

-{

-	if (   !gViewerWindow->getActive()

-		|| !gViewerWindow->getWindow()->getVisible() 

-		|| gViewerWindow->getWindow()->getMinimized() )

-	{

-		return; 

-	}

-

-	gPipeline.updateGL();

-

-	// Update images?

-	//gImageList.updateImages(0.01f);

-	LLTexUnit::sWhiteTexture = LLViewerFetchedTexture::sWhiteImagep->getTexName();

-

-	LLGLSDefault gls_default;

-

-	// Required for HTML update in login screen

-	static S32 frame_count = 0;

-

-	LLGLState::checkStates();

-	LLGLState::checkTextureChannels();

-

-	if (frame_count++ > 1) // make sure we have rendered a frame first

-	{

-		LLViewerDynamicTexture::updateAllInstances();

-	}

-

-	LLGLState::checkStates();

-	LLGLState::checkTextureChannels();

-

-	glClear(GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);

-	LLGLSUIDefault gls_ui;

-	gPipeline.disableLights();

-

-	gViewerWindow->setup2DRender();

-	gGL.getTexUnit(0)->setTextureBlendType(LLTexUnit::TB_MULT);

-

-	gGL.color4f(1,1,1,1);

-	gViewerWindow->draw();

-	gGL.flush();

-

-	LLVertexBuffer::unbind();

-

-	LLGLState::checkStates();

-	LLGLState::checkTextureChannels();

-

-	gViewerWindow->getWindow()->swapBuffers();

-	glClear(GL_DEPTH_BUFFER_BIT);

-}

-

-void display_update_camera()

-{

-	LLMemType mt_uc(LLMemType::MTYPE_DISPLAY_UPDATE_CAMERA);

-	// TODO: cut draw distance down if customizing avatar?

-	// TODO: cut draw distance on per-parcel basis?

-

-	// Cut draw distance in half when customizing avatar,

-	// but on the viewer only.

-	F32 final_far = gAgentCamera.mDrawDistance;

-	if (CAMERA_MODE_CUSTOMIZE_AVATAR == gAgentCamera.getCameraMode())

-	{

-		final_far *= 0.5f;

-	}

-	LLViewerCamera::getInstance()->setFar(final_far);

-	gViewerWindow->setup3DRender();

-	

-	// update all the sky/atmospheric/water settings

-	LLWLParamManager::getInstance()->update(LLViewerCamera::getInstance());

-	LLWaterParamManager::getInstance()->update(LLViewerCamera::getInstance());

-

-	// Update land visibility too

-	LLWorld::getInstance()->setLandFarClip(final_far);

-}

-

-// Write some stats to llinfos

-void display_stats()

-{

-	F32 fps_log_freq = gSavedSettings.getF32("FPSLogFrequency");

-	if (fps_log_freq > 0.f && gRecentFPSTime.getElapsedTimeF32() >= fps_log_freq)

-	{

-		F32 fps = gRecentFrameCount / fps_log_freq;

-		llinfos << llformat("FPS: %.02f", fps) << llendl;

-		gRecentFrameCount = 0;

-		gRecentFPSTime.reset();

-	}

-	F32 mem_log_freq = gSavedSettings.getF32("MemoryLogFrequency");

-	if (mem_log_freq > 0.f && gRecentMemoryTime.getElapsedTimeF32() >= mem_log_freq)

-	{

-		gMemoryAllocated = LLMemory::getCurrentRSS();

-		U32 memory = (U32)(gMemoryAllocated / (1024*1024));

-		llinfos << llformat("MEMORY: %d MB", memory) << llendl;

-		LLMemory::logMemoryInfo(TRUE) ;

-		gRecentMemoryTime.reset();

-	}

-}

-

-static LLFastTimer::DeclareTimer FTM_PICK("Picking");

-static LLFastTimer::DeclareTimer FTM_RENDER("Render", true);

-static LLFastTimer::DeclareTimer FTM_UPDATE_SKY("Update Sky");

-static LLFastTimer::DeclareTimer FTM_UPDATE_TEXTURES("Update Textures");

-static LLFastTimer::DeclareTimer FTM_IMAGE_UPDATE("Update Images");

-static LLFastTimer::DeclareTimer FTM_IMAGE_UPDATE_CLASS("Class");

-static LLFastTimer::DeclareTimer FTM_IMAGE_UPDATE_BUMP("Bump");

-static LLFastTimer::DeclareTimer FTM_IMAGE_UPDATE_LIST("List");

-static LLFastTimer::DeclareTimer FTM_IMAGE_UPDATE_DELETE("Delete");

-

-// Paint the display!

-void display(BOOL rebuild, F32 zoom_factor, int subfield, BOOL for_snapshot)

-{

-	LLMemType mt_render(LLMemType::MTYPE_RENDER);

-	LLFastTimer t(FTM_RENDER);

-

-	if (gWindowResized)

-	{ //skip render on frames where window has been resized

-		gGL.flush();

-		glClear(GL_COLOR_BUFFER_BIT);

-		gViewerWindow->getWindow()->swapBuffers();

-		LLPipeline::refreshCachedSettings();

-		gPipeline.resizeScreenTexture();

-		gResizeScreenTexture = FALSE;

-		gWindowResized = FALSE;

-		return;

-	}

-

-	if (LLPipeline::sRenderDeferred)

-	{ //hack to make sky show up in deferred snapshots

-		for_snapshot = FALSE;

-	}

-

-	if (LLPipeline::sRenderFrameTest)

-	{

-		send_agent_pause();

-	}

-

-	gSnapshot = for_snapshot;

-

-	LLGLSDefault gls_default;

-	LLGLDepthTest gls_depth(GL_TRUE, GL_TRUE, GL_LEQUAL);

-	

-	LLVertexBuffer::unbind();

-

-	LLGLState::checkStates();

-	LLGLState::checkTextureChannels();

-	

-	stop_glerror();

-

-	gPipeline.disableLights();

-	

-	//reset vertex buffers if needed

-	gPipeline.doResetVertexBuffers();

-

-	stop_glerror();

-

-	// Don't draw if the window is hidden or minimized.

-	// In fact, must explicitly check the minimized state before drawing.

-	// Attempting to draw into a minimized window causes a GL error. JC

-	if (   !gViewerWindow->getActive()

-		|| !gViewerWindow->getWindow()->getVisible() 

-		|| gViewerWindow->getWindow()->getMinimized() )

-	{

-		// Clean up memory the pools may have allocated

-		if (rebuild)

-		{

-			stop_glerror();

-			gPipeline.rebuildPools();

-			stop_glerror();

-		}

-

-		stop_glerror();

-		gViewerWindow->returnEmptyPicks();

-		stop_glerror();

-		return; 

-	}

-

-	gViewerWindow->checkSettings();

-	

-	{

-		LLFastTimer ftm(FTM_PICK);

-		LLAppViewer::instance()->pingMainloopTimeout("Display:Pick");

-		gViewerWindow->performPick();

-	}

-	

-	LLAppViewer::instance()->pingMainloopTimeout("Display:CheckStates");

-	LLGLState::checkStates();

-	LLGLState::checkTextureChannels();

-	

-	//////////////////////////////////////////////////////////

-	//

-	// Logic for forcing window updates if we're in drone mode.

-	//

-

-	// *TODO: Investigate running display() during gHeadlessClient.  See if this early exit is needed DK 2011-02-18

-	if (gHeadlessClient) 

-	{

-#if LL_WINDOWS

-		static F32 last_update_time = 0.f;

-		if ((gFrameTimeSeconds - last_update_time) > 1.f)

-		{

-			InvalidateRect((HWND)gViewerWindow->getPlatformWindow(), NULL, FALSE);

-			last_update_time = gFrameTimeSeconds;

-		}

-#elif LL_DARWIN

-		// MBW -- Do something clever here.

-#endif

-		// Not actually rendering, don't bother.

-		return;

-	}

-

-

-	//

-	// Bail out if we're in the startup state and don't want to try to

-	// render the world.

-	//

-	if (LLStartUp::getStartupState() < STATE_STARTED)

-	{

-		LLAppViewer::instance()->pingMainloopTimeout("Display:Startup");

-		display_startup();

-		return;

-	}

-

-	//LLGLState::verify(FALSE);

-

-	/////////////////////////////////////////////////

-	//

-	// Update GL Texture statistics (used for discard logic?)

-	//

-

-	LLAppViewer::instance()->pingMainloopTimeout("Display:TextureStats");

-	stop_glerror();

-

-	LLImageGL::updateStats(gFrameTimeSeconds);

-	

-	LLVOAvatar::sRenderName = gSavedSettings.getS32("AvatarNameTagMode");

-	LLVOAvatar::sRenderGroupTitles = (gSavedSettings.getBOOL("NameTagShowGroupTitles") && gSavedSettings.getS32("AvatarNameTagMode"));

-	

-	gPipeline.mBackfaceCull = TRUE;

-	gFrameCount++;

-	gRecentFrameCount++;

-	if (gFocusMgr.getAppHasFocus())

-	{

-		gForegroundFrameCount++;

-	}

-

-	//////////////////////////////////////////////////////////

-	//

-	// Display start screen if we're teleporting, and skip render

-	//

-

-	if (gTeleportDisplay)

-	{

-		LLAppViewer::instance()->pingMainloopTimeout("Display:Teleport");

-		const F32 TELEPORT_ARRIVAL_DELAY = 2.f; // Time to preload the world before raising the curtain after we've actually already arrived.

-

-		S32 attach_count = 0;

-		if (isAgentAvatarValid())

-		{

-			attach_count = gAgentAvatarp->getAttachmentCount();

-		}

-		F32 teleport_save_time = TELEPORT_EXPIRY + TELEPORT_EXPIRY_PER_ATTACHMENT * attach_count;

-		F32 teleport_elapsed = gTeleportDisplayTimer.getElapsedTimeF32();

-		F32 teleport_percent = teleport_elapsed * (100.f / teleport_save_time);

-		if( (gAgent.getTeleportState() != LLAgent::TELEPORT_START) && (teleport_percent > 100.f) )

-		{

-			// Give up.  Don't keep the UI locked forever.

-			gAgent.setTeleportState( LLAgent::TELEPORT_NONE );

-			gAgent.setTeleportMessage(std::string());

-		}

-

-		const std::string& message = gAgent.getTeleportMessage();

-		switch( gAgent.getTeleportState() )

-		{

-		case LLAgent::TELEPORT_START:

-			// Transition to REQUESTED.  Viewer has sent some kind

-			// of TeleportRequest to the source simulator

-			gTeleportDisplayTimer.reset();

-			gViewerWindow->setShowProgress(TRUE);

-			gViewerWindow->setProgressPercent(0);

-			gAgent.setTeleportState( LLAgent::TELEPORT_REQUESTED );

-			gAgent.setTeleportMessage(

-				LLAgent::sTeleportProgressMessages["requesting"]);

-			break;

-

-		case LLAgent::TELEPORT_REQUESTED:

-			// Waiting for source simulator to respond

-			gViewerWindow->setProgressPercent( llmin(teleport_percent, 37.5f) );

-			gViewerWindow->setProgressString(message);

-			break;

-

-		case LLAgent::TELEPORT_MOVING:

-			// Viewer has received destination location from source simulator

-			gViewerWindow->setProgressPercent( llmin(teleport_percent, 75.f) );

-			gViewerWindow->setProgressString(message);

-			break;

-

-		case LLAgent::TELEPORT_START_ARRIVAL:

-			// Transition to ARRIVING.  Viewer has received avatar update, etc., from destination simulator

-			gTeleportArrivalTimer.reset();

-				gViewerWindow->setProgressCancelButtonVisible(FALSE, LLTrans::getString("Cancel"));

-			gViewerWindow->setProgressPercent(75.f);

-			gAgent.setTeleportState( LLAgent::TELEPORT_ARRIVING );

-			gAgent.setTeleportMessage(

-				LLAgent::sTeleportProgressMessages["arriving"]);

-			gTextureList.mForceResetTextureStats = TRUE;

-			gAgentCamera.resetView(TRUE, TRUE);

-			break;

-

-		case LLAgent::TELEPORT_ARRIVING:

-			// Make the user wait while content "pre-caches"

-			{

-				F32 arrival_fraction = (gTeleportArrivalTimer.getElapsedTimeF32() / TELEPORT_ARRIVAL_DELAY);

-				if( arrival_fraction > 1.f )

-				{

-					arrival_fraction = 1.f;

-					//LLFirstUse::useTeleport();

-					gAgent.setTeleportState( LLAgent::TELEPORT_NONE );

-				}

-				gViewerWindow->setProgressCancelButtonVisible(FALSE, LLTrans::getString("Cancel"));

-				gViewerWindow->setProgressPercent(  arrival_fraction * 25.f + 75.f);

-				gViewerWindow->setProgressString(message);

-			}

-			break;

-

-		case LLAgent::TELEPORT_LOCAL:

-			// Short delay when teleporting in the same sim (progress screen active but not shown - did not

-			// fall-through from TELEPORT_START)

-			{

-				if( gTeleportDisplayTimer.getElapsedTimeF32() > TELEPORT_LOCAL_DELAY )

-				{

-					//LLFirstUse::useTeleport();

-					gAgent.setTeleportState( LLAgent::TELEPORT_NONE );

-				}

-			}

-			break;

-

-		case LLAgent::TELEPORT_NONE:

-			// No teleport in progress

-			gViewerWindow->setShowProgress(FALSE);

-			gTeleportDisplay = FALSE;

-			break;

-		}

-	}

-    else if(LLAppViewer::instance()->logoutRequestSent())

-	{

-		LLAppViewer::instance()->pingMainloopTimeout("Display:Logout");

-		F32 percent_done = gLogoutTimer.getElapsedTimeF32() * 100.f / gLogoutMaxTime;

-		if (percent_done > 100.f)

-		{

-			percent_done = 100.f;

-		}

-

-		if( LLApp::isExiting() )

-		{

-			percent_done = 100.f;

-		}

-		

-		gViewerWindow->setProgressPercent( percent_done );

-	}

-	else

-	if (gRestoreGL)

-	{

-		LLAppViewer::instance()->pingMainloopTimeout("Display:RestoreGL");

-		F32 percent_done = gRestoreGLTimer.getElapsedTimeF32() * 100.f / RESTORE_GL_TIME;

-		if( percent_done > 100.f )

-		{

-			gViewerWindow->setShowProgress(FALSE);

-			gRestoreGL = FALSE;

-		}

-		else

-		{

-

-			if( LLApp::isExiting() )

-			{

-				percent_done = 100.f;

-			}

-			

-			gViewerWindow->setProgressPercent( percent_done );

-		}

-	}

-

-	//////////////////////////

-	//

-	// Prepare for the next frame

-	//

-

-	/////////////////////////////

-	//

-	// Update the camera

-	//

-	//

-

-	LLAppViewer::instance()->pingMainloopTimeout("Display:Camera");

-	LLViewerCamera::getInstance()->setZoomParameters(zoom_factor, subfield);

-	LLViewerCamera::getInstance()->setNear(MIN_NEAR_PLANE);

-

-	//////////////////////////

-	//

-	// clear the next buffer

-	// (must follow dynamic texture writing since that uses the frame buffer)

-	//

-

-	if (gDisconnected)

-	{

-		LLAppViewer::instance()->pingMainloopTimeout("Display:Disconnected");

-		render_ui();

-	}

-	

-	//////////////////////////

-	//

-	// Set rendering options

-	//

-	//

-	LLAppViewer::instance()->pingMainloopTimeout("Display:RenderSetup");

-	stop_glerror();

-

-	///////////////////////////////////////

-	//

-	// Slam lighting parameters back to our defaults.

-	// Note that these are not the same as GL defaults...

-

-	stop_glerror();

-	gGL.setAmbientLightColor(LLColor4::white);

-	stop_glerror();

-			

-	/////////////////////////////////////

-	//

-	// Render

-	//

-	// Actually push all of our triangles to the screen.

-	//

-

-	// do render-to-texture stuff here

-	if (gPipeline.hasRenderDebugFeatureMask(LLPipeline::RENDER_DEBUG_FEATURE_DYNAMIC_TEXTURES))

-	{

-		LLAppViewer::instance()->pingMainloopTimeout("Display:DynamicTextures");

-		LLFastTimer t(FTM_UPDATE_TEXTURES);

-		if (LLViewerDynamicTexture::updateAllInstances())

-		{

-			gGL.setColorMask(true, true);

-			glClear(GL_DEPTH_BUFFER_BIT);

-		}

-	}

-

-	gViewerWindow->setup3DViewport();

-

-	gPipeline.resetFrameStats();	// Reset per-frame statistics.

-	

-	if (!gDisconnected)

-	{

-		LLMemType mt_du(LLMemType::MTYPE_DISPLAY_UPDATE);

-		LLAppViewer::instance()->pingMainloopTimeout("Display:Update");

-		if (gPipeline.hasRenderType(LLPipeline::RENDER_TYPE_HUD))

-		{ //don't draw hud objects in this frame

-			gPipeline.toggleRenderType(LLPipeline::RENDER_TYPE_HUD);

-		}

-

-		if (gPipeline.hasRenderType(LLPipeline::RENDER_TYPE_HUD_PARTICLES))

-		{ //don't draw hud particles in this frame

-			gPipeline.toggleRenderType(LLPipeline::RENDER_TYPE_HUD_PARTICLES);

-		}

-

-		//upkeep gl name pools

-		LLGLNamePool::upkeepPools();

-		

-		stop_glerror();

-		display_update_camera();

-		stop_glerror();

-				

-		// *TODO: merge these two methods

-		{

-			LLMemType mt_uh(LLMemType::MTYPE_DISPLAY_UPDATE_HUD);

-			LLHUDManager::getInstance()->updateEffects();

-			LLHUDObject::updateAll();

-			stop_glerror();

-		}

-

-		{

-			LLMemType mt_ug(LLMemType::MTYPE_DISPLAY_UPDATE_GEOM);

-			const F32 max_geom_update_time = 0.005f*10.f*gFrameIntervalSeconds; // 50 ms/second update time

-			gPipeline.createObjects(max_geom_update_time);

-			gPipeline.processPartitionQ();

-			gPipeline.updateGeom(max_geom_update_time);

-			stop_glerror();

-		}

-

-		gPipeline.updateGL();

-		stop_glerror();

-

-		S32 water_clip = 0;

-		if ((LLViewerShaderMgr::instance()->getVertexShaderLevel(LLViewerShaderMgr::SHADER_ENVIRONMENT) > 1) &&

-			 (gPipeline.hasRenderType(LLPipeline::RENDER_TYPE_WATER) || 

-			  gPipeline.hasRenderType(LLPipeline::RENDER_TYPE_VOIDWATER)))

-		{

-			if (LLViewerCamera::getInstance()->cameraUnderWater())

-			{

-				water_clip = -1;

-			}

-			else

-			{

-				water_clip = 1;

-			}

-		}

-		

-		LLAppViewer::instance()->pingMainloopTimeout("Display:Cull");

-		

-		//Increment drawable frame counter

-		LLDrawable::incrementVisible();

-

-		LLSpatialGroup::sNoDelete = TRUE;

-		LLTexUnit::sWhiteTexture = LLViewerFetchedTexture::sWhiteImagep->getTexName();

-

-		/*if (LLPipeline::sUseOcclusion && LLPipeline::sRenderDeferred)

-		{ //force occlusion on for all render types if doing deferred render (tighter shadow frustum)

-			LLPipeline::sUseOcclusion = 3;

-		}*/

-

-		S32 occlusion = LLPipeline::sUseOcclusion;

-		if (gDepthDirty)

-		{ //depth buffer is invalid, don't overwrite occlusion state

-			LLPipeline::sUseOcclusion = llmin(occlusion, 1);

-		}

-		gDepthDirty = FALSE;

-

-		LLGLState::checkStates();

-		LLGLState::checkTextureChannels();

-		LLGLState::checkClientArrays();

-

-		static LLCullResult result;

-		LLViewerCamera::sCurCameraID = LLViewerCamera::CAMERA_WORLD;

-		gPipeline.updateCull(*LLViewerCamera::getInstance(), result, water_clip);

-		stop_glerror();

-

-		LLGLState::checkStates();

-		LLGLState::checkTextureChannels();

-		LLGLState::checkClientArrays();

-

-		BOOL to_texture = gPipeline.canUseVertexShaders() &&

-						LLPipeline::sRenderGlow;

-

-		LLAppViewer::instance()->pingMainloopTimeout("Display:Swap");

-		

-		{ 

-			LLMemType mt_ds(LLMemType::MTYPE_DISPLAY_SWAP);

-

-			if (gResizeScreenTexture)

-			{

-				gResizeScreenTexture = FALSE;

-				gPipeline.resizeScreenTexture();

-			}

-

-			gGL.setColorMask(true, true);

-			glClearColor(0,0,0,0);

-

-			LLGLState::checkStates();

-			LLGLState::checkTextureChannels();

-			LLGLState::checkClientArrays();

-

-			if (!for_snapshot)

-			{

-				if (gFrameCount > 1)

-				{ 

-					//for some reason, ATI 4800 series will error out if you 

-				    //try to generate a shadow before the first frame is through

-					gPipeline.generateSunShadow(*LLViewerCamera::getInstance());

-				}

-

-				LLVertexBuffer::unbind();

-

-				LLGLState::checkStates();

-				LLGLState::checkTextureChannels();

-				LLGLState::checkClientArrays();

-

-				glh::matrix4f proj = glh_get_current_projection();

-				glh::matrix4f mod = glh_get_current_modelview();

-				glViewport(0,0,512,512);

-				LLVOAvatar::updateFreezeCounter() ;

-

-				if(!LLPipeline::sMemAllocationThrottled)

-				{		

-					LLVOAvatar::updateImpostors();

-				}

-

-				glh_set_current_projection(proj);

-				glh_set_current_modelview(mod);

-				gGL.matrixMode(LLRender::MM_PROJECTION);

-				gGL.loadMatrix(proj.m);

-				gGL.matrixMode(LLRender::MM_MODELVIEW);

-				gGL.loadMatrix(mod.m);

-				gViewerWindow->setup3DViewport();

-

-				LLGLState::checkStates();

-				LLGLState::checkTextureChannels();

-				LLGLState::checkClientArrays();

-

-			}

-			glClear(GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);

-		}

-

-		LLGLState::checkStates();

-		LLGLState::checkClientArrays();

-

-		//if (!for_snapshot)

-		{

-			LLMemType mt_gw(LLMemType::MTYPE_DISPLAY_GEN_REFLECTION);

-			LLAppViewer::instance()->pingMainloopTimeout("Display:Imagery");

-			gPipeline.generateWaterReflection(*LLViewerCamera::getInstance());

-			gPipeline.generateHighlight(*LLViewerCamera::getInstance());

-			gPipeline.renderPhysicsDisplay();				

-		}

-

-		LLGLState::checkStates();

-		LLGLState::checkClientArrays();

-

-		//////////////////////////////////////

-		//

-		// Update images, using the image stats generated during object update/culling

-		//

-		// Can put objects onto the retextured list.

-		//

-		// Doing this here gives hardware occlusion queries extra time to complete

-		LLAppViewer::instance()->pingMainloopTimeout("Display:UpdateImages");

-		

-		{

-			LLMemType mt_iu(LLMemType::MTYPE_DISPLAY_IMAGE_UPDATE);

-			LLFastTimer t(FTM_IMAGE_UPDATE);

-			

-			{

-				LLFastTimer t(FTM_IMAGE_UPDATE_CLASS);

-				LLViewerTexture::updateClass(LLViewerCamera::getInstance()->getVelocityStat()->getMean(),

-											LLViewerCamera::getInstance()->getAngularVelocityStat()->getMean());

-			}

-

-			

-			{

-				LLFastTimer t(FTM_IMAGE_UPDATE_BUMP);

-				gBumpImageList.updateImages();  // must be called before gTextureList version so that it's textures are thrown out first.

-			}

-

-			{

-				LLFastTimer t(FTM_IMAGE_UPDATE_LIST);

-				F32 max_image_decode_time = 0.050f*gFrameIntervalSeconds; // 50 ms/second decode time

-				max_image_decode_time = llclamp(max_image_decode_time, 0.002f, 0.005f ); // min 2ms/frame, max 5ms/frame)

-				gTextureList.updateImages(max_image_decode_time);

-			}

-

-			{

-				LLFastTimer t(FTM_IMAGE_UPDATE_DELETE);

-				//remove dead textures from GL

-				LLImageGL::deleteDeadTextures();

-				stop_glerror();

-			}

-		}

-

-		LLGLState::checkStates();

-		LLGLState::checkClientArrays();

-

-		///////////////////////////////////

-		//

-		// StateSort

-		//

-		// Responsible for taking visible objects, and adding them to the appropriate draw orders.

-		// In the case of alpha objects, z-sorts them first.

-		// Also creates special lists for outlines and selected face rendering.

-		//

-		LLAppViewer::instance()->pingMainloopTimeout("Display:StateSort");

-		{

-			LLViewerCamera::sCurCameraID = LLViewerCamera::CAMERA_WORLD;

-			LLMemType mt_ss(LLMemType::MTYPE_DISPLAY_STATE_SORT);

-			gPipeline.stateSort(*LLViewerCamera::getInstance(), result);

-			stop_glerror();

-				

-			if (rebuild)

-			{

-				//////////////////////////////////////

-				//

-				// rebuildPools

-				//

-				//

-				gPipeline.rebuildPools();

-				stop_glerror();

-			}

-		}

-

-		LLGLState::checkStates();

-		LLGLState::checkClientArrays();

-

-		LLPipeline::sUseOcclusion = occlusion;

-

-		{

-			LLMemType mt_ds(LLMemType::MTYPE_DISPLAY_SKY);

-			LLAppViewer::instance()->pingMainloopTimeout("Display:Sky");

-			LLFastTimer t(FTM_UPDATE_SKY);	

-			gSky.updateSky();

-		}

-

-		if(gUseWireframe)

-		{

-			glClearColor(0.5f, 0.5f, 0.5f, 0.f);

-			glClear(GL_COLOR_BUFFER_BIT);

-			glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);

-		}

-

-		LLAppViewer::instance()->pingMainloopTimeout("Display:RenderStart");

-		

-		//// render frontmost floater opaque for occlusion culling purposes

-		//LLFloater* frontmost_floaterp = gFloaterView->getFrontmost();

-		//// assumes frontmost floater with focus is opaque

-		//if (frontmost_floaterp && gFocusMgr.childHasKeyboardFocus(frontmost_floaterp))

-		//{

-		//	gGL.matrixMode(LLRender::MM_MODELVIEW);

-		//	gGL.pushMatrix();

-		//	{

-		//		gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);

-

-		//		glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_TRUE);

-		//		gGL.loadIdentity();

-

-		//		LLRect floater_rect = frontmost_floaterp->calcScreenRect();

-		//		// deflate by one pixel so rounding errors don't occlude outside of floater extents

-		//		floater_rect.stretch(-1);

-		//		LLRectf floater_3d_rect((F32)floater_rect.mLeft / (F32)gViewerWindow->getWindowWidthScaled(), 

-		//								(F32)floater_rect.mTop / (F32)gViewerWindow->getWindowHeightScaled(),

-		//								(F32)floater_rect.mRight / (F32)gViewerWindow->getWindowWidthScaled(),

-		//								(F32)floater_rect.mBottom / (F32)gViewerWindow->getWindowHeightScaled());

-		//		floater_3d_rect.translate(-0.5f, -0.5f);

-		//		gGL.translatef(0.f, 0.f, -LLViewerCamera::getInstance()->getNear());

-		//		gGL.scalef(LLViewerCamera::getInstance()->getNear() * LLViewerCamera::getInstance()->getAspect() / sinf(LLViewerCamera::getInstance()->getView()), LLViewerCamera::getInstance()->getNear() / sinf(LLViewerCamera::getInstance()->getView()), 1.f);

-		//		gGL.color4fv(LLColor4::white.mV);

-		//		gGL.begin(LLVertexBuffer::QUADS);

-		//		{

-		//			gGL.vertex3f(floater_3d_rect.mLeft, floater_3d_rect.mBottom, 0.f);

-		//			gGL.vertex3f(floater_3d_rect.mLeft, floater_3d_rect.mTop, 0.f);

-		//			gGL.vertex3f(floater_3d_rect.mRight, floater_3d_rect.mTop, 0.f);

-		//			gGL.vertex3f(floater_3d_rect.mRight, floater_3d_rect.mBottom, 0.f);

-		//		}

-		//		gGL.end();

-		//		glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);

-		//	}

-		//	gGL.popMatrix();

-		//}

-

-		LLPipeline::sUnderWaterRender = LLViewerCamera::getInstance()->cameraUnderWater() ? TRUE : FALSE;

-		

-		LLGLState::checkStates();

-		LLGLState::checkClientArrays();

-

-		stop_glerror();

-

-		

-		if (to_texture)

-		{

-			gGL.setColorMask(true, true);

-					

-			if (LLPipeline::sRenderDeferred && !LLPipeline::sUnderWaterRender)

-			{

-				gPipeline.mDeferredScreen.bindTarget();

-				glClearColor(1,0,1,1);

-				gPipeline.mDeferredScreen.clear();

-			}

-			else

-			{

-				gPipeline.mScreen.bindTarget();

-				if (LLPipeline::sUnderWaterRender && !gPipeline.canUseWindLightShaders())

-				{

-					const LLColor4 &col = LLDrawPoolWater::sWaterFogColor;

-					glClearColor(col.mV[0], col.mV[1], col.mV[2], 0.f);

-				}

-				gPipeline.mScreen.clear();

-			}

-			

-			gGL.setColorMask(true, false);

-		}

-		

-			if (!(LLAppViewer::instance()->logoutRequestSent() && LLAppViewer::instance()->hasSavedFinalSnapshot())

-				&& !gRestoreGL)

-		{

-			LLViewerCamera::sCurCameraID = LLViewerCamera::CAMERA_WORLD;

-			LLMemType mt_rg(LLMemType::MTYPE_DISPLAY_RENDER_GEOM);

-			gGL.setColorMask(true, false);

-		

-

-			if (LLPipeline::sRenderDeferred && !LLPipeline::sUnderWaterRender)

-			{

-				gPipeline.renderGeomDeferred(*LLViewerCamera::getInstance());

-			}

-			else

-			{

-				gPipeline.renderGeom(*LLViewerCamera::getInstance(), TRUE);

-			}

-			

-			gGL.setColorMask(true, true);

-

-			//store this frame's modelview matrix for use

-			//when rendering next frame's occlusion queries

-			for (U32 i = 0; i < 16; i++)

-			{

-				gGLLastModelView[i] = gGLModelView[i];

-				gGLLastProjection[i] = gGLProjection[i];

-			}

-			stop_glerror();

-		}

-

-		for (U32 i = 0; i < gGLManager.mNumTextureImageUnits; i++)

-		{ //dummy cleanup of any currently bound textures

-			if (gGL.getTexUnit(i)->getCurrType() != LLTexUnit::TT_NONE)

-			{

-				gGL.getTexUnit(i)->unbind(gGL.getTexUnit(i)->getCurrType());

-				gGL.getTexUnit(i)->disable();

-			}

-		}

-		LLAppViewer::instance()->pingMainloopTimeout("Display:RenderFlush");		

-		

-		if (to_texture)

-		{

-			LLMemType mt_rf(LLMemType::MTYPE_DISPLAY_RENDER_FLUSH);

-			if (LLPipeline::sRenderDeferred && !LLPipeline::sUnderWaterRender)

-			{

-				gPipeline.mDeferredScreen.flush();

-				if(LLRenderTarget::sUseFBO)

-				{

-					LLRenderTarget::copyContentsToFramebuffer(gPipeline.mDeferredScreen, 0, 0, gPipeline.mDeferredScreen.getWidth(), 

-															  gPipeline.mDeferredScreen.getHeight(), 0, 0, 

-															  gPipeline.mDeferredScreen.getWidth(), 

-															  gPipeline.mDeferredScreen.getHeight(), 

-															  GL_DEPTH_BUFFER_BIT, GL_NEAREST);

-				}

-			}

-			else

-			{

-				gPipeline.mScreen.flush();

-				if(LLRenderTarget::sUseFBO)

-				{				

-					LLRenderTarget::copyContentsToFramebuffer(gPipeline.mScreen, 0, 0, gPipeline.mScreen.getWidth(), 

-															  gPipeline.mScreen.getHeight(), 0, 0, 

-															  gPipeline.mScreen.getWidth(), 

-															  gPipeline.mScreen.getHeight(), 

-															  GL_DEPTH_BUFFER_BIT, GL_NEAREST);

-				}

-			}

-		}

-

-

-		if (LLPipeline::sRenderDeferred && !LLPipeline::sUnderWaterRender )

-		{

-			gPipeline.renderDeferredLighting();

-		}

-

-		LLPipeline::sUnderWaterRender = FALSE;

-

-		LLAppViewer::instance()->pingMainloopTimeout("Display:RenderUI");

-		if (!for_snapshot)

-		{

-			LLFastTimer t(FTM_RENDER_UI);

-			render_ui();

-		}

-

-		

-		LLSpatialGroup::sNoDelete = FALSE;

-		gPipeline.clearReferences();

-

-		gPipeline.rebuildGroups();

-	}

-

-	LLAppViewer::instance()->pingMainloopTimeout("Display:FrameStats");

-	

-	stop_glerror();

-

-	if (LLPipeline::sRenderFrameTest)

-	{

-		send_agent_resume();

-		LLPipeline::sRenderFrameTest = FALSE;

-	}

-

-	display_stats();

-				

-	LLAppViewer::instance()->pingMainloopTimeout("Display:Done");

-}

-

-void render_hud_attachments()

-{

-	LLMemType mt_ra(LLMemType::MTYPE_DISPLAY_RENDER_ATTACHMENTS);

-	gGL.matrixMode(LLRender::MM_PROJECTION);

-	gGL.pushMatrix();

-	gGL.matrixMode(LLRender::MM_MODELVIEW);

-	gGL.pushMatrix();

-		

-	glh::matrix4f current_proj = glh_get_current_projection();

-	glh::matrix4f current_mod = glh_get_current_modelview();

-

-	// clamp target zoom level to reasonable values

-	gAgentCamera.mHUDTargetZoom = llclamp(gAgentCamera.mHUDTargetZoom, 0.1f, 1.f);

-	// smoothly interpolate current zoom level

-	gAgentCamera.mHUDCurZoom = lerp(gAgentCamera.mHUDCurZoom, gAgentCamera.mHUDTargetZoom, LLCriticalDamp::getInterpolant(0.03f));

-

-	if (LLPipeline::sShowHUDAttachments && !gDisconnected && setup_hud_matrices())

-	{

-		LLCamera hud_cam = *LLViewerCamera::getInstance();

-		LLVector3 origin = hud_cam.getOrigin();

-		hud_cam.setOrigin(-1.f,0,0);

-		hud_cam.setAxes(LLVector3(1,0,0), LLVector3(0,1,0), LLVector3(0,0,1));

-		LLViewerCamera::updateFrustumPlanes(hud_cam, TRUE);

-

-		bool render_particles = gPipeline.hasRenderType(LLPipeline::RENDER_TYPE_PARTICLES) && gSavedSettings.getBOOL("RenderHUDParticles");

-		

-		//only render hud objects

-		gPipeline.pushRenderTypeMask();

-		

-		// turn off everything

-		gPipeline.andRenderTypeMask(LLPipeline::END_RENDER_TYPES);

-		// turn on HUD

-		gPipeline.toggleRenderType(LLPipeline::RENDER_TYPE_HUD);

-		// turn on HUD particles

-		gPipeline.toggleRenderType(LLPipeline::RENDER_TYPE_HUD_PARTICLES);

-

-		// if particles are off, turn off hud-particles as well

-		if (!render_particles)

-		{

-			// turn back off HUD particles

-			gPipeline.toggleRenderType(LLPipeline::RENDER_TYPE_HUD_PARTICLES);

-		}

-

-		bool has_ui = gPipeline.hasRenderDebugFeatureMask(LLPipeline::RENDER_DEBUG_FEATURE_UI);

-		if (has_ui)

-		{

-			gPipeline.toggleRenderDebugFeature((void*) LLPipeline::RENDER_DEBUG_FEATURE_UI);

-		}

-

-		S32 use_occlusion = LLPipeline::sUseOcclusion;

-		LLPipeline::sUseOcclusion = 0;

-				

-		//cull, sort, and render hud objects

-		static LLCullResult result;

-		LLSpatialGroup::sNoDelete = TRUE;

-

-		LLViewerCamera::sCurCameraID = LLViewerCamera::CAMERA_WORLD;

-		gPipeline.updateCull(hud_cam, result);

-

-		gPipeline.toggleRenderType(LLPipeline::RENDER_TYPE_BUMP);

-		gPipeline.toggleRenderType(LLPipeline::RENDER_TYPE_SIMPLE);

-		gPipeline.toggleRenderType(LLPipeline::RENDER_TYPE_VOLUME);

-		gPipeline.toggleRenderType(LLPipeline::RENDER_TYPE_ALPHA);

-		gPipeline.toggleRenderType(LLPipeline::RENDER_TYPE_FULLBRIGHT);

-		gPipeline.toggleRenderType(LLPipeline::RENDER_TYPE_PASS_ALPHA);

-		gPipeline.toggleRenderType(LLPipeline::RENDER_TYPE_PASS_ALPHA_MASK);

-		gPipeline.toggleRenderType(LLPipeline::RENDER_TYPE_PASS_BUMP);

-		gPipeline.toggleRenderType(LLPipeline::RENDER_TYPE_PASS_FULLBRIGHT);

-		gPipeline.toggleRenderType(LLPipeline::RENDER_TYPE_PASS_FULLBRIGHT_ALPHA_MASK);

-		gPipeline.toggleRenderType(LLPipeline::RENDER_TYPE_PASS_FULLBRIGHT_SHINY);

-		gPipeline.toggleRenderType(LLPipeline::RENDER_TYPE_PASS_SHINY);

-		gPipeline.toggleRenderType(LLPipeline::RENDER_TYPE_PASS_INVISIBLE);

-		gPipeline.toggleRenderType(LLPipeline::RENDER_TYPE_PASS_INVISI_SHINY);

-		

-		gPipeline.stateSort(hud_cam, result);

-

-		gPipeline.renderGeom(hud_cam);

-

-		LLSpatialGroup::sNoDelete = FALSE;

-		//gPipeline.clearReferences();

-

-		render_hud_elements();

-

-		//restore type mask

-		gPipeline.popRenderTypeMask();

-

-		if (has_ui)

-		{

-			gPipeline.toggleRenderDebugFeature((void*) LLPipeline::RENDER_DEBUG_FEATURE_UI);

-		}

-		LLPipeline::sUseOcclusion = use_occlusion;

-	}

-	gGL.matrixMode(LLRender::MM_PROJECTION);

-	gGL.popMatrix();

-	gGL.matrixMode(LLRender::MM_MODELVIEW);

-	gGL.popMatrix();

-	

-	glh_set_current_projection(current_proj);

-	glh_set_current_modelview(current_mod);

-}

-

-LLRect get_whole_screen_region()

-{

-	LLRect whole_screen = gViewerWindow->getWorldViewRectScaled();

-	

-	// apply camera zoom transform (for high res screenshots)

-	F32 zoom_factor = LLViewerCamera::getInstance()->getZoomFactor();

-	S16 sub_region = LLViewerCamera::getInstance()->getZoomSubRegion();

-	if (zoom_factor > 1.f)

-	{

-		S32 num_horizontal_tiles = llceil(zoom_factor);

-		S32 tile_width = llround((F32)gViewerWindow->getWorldViewWidthScaled() / zoom_factor);

-		S32 tile_height = llround((F32)gViewerWindow->getWorldViewHeightScaled() / zoom_factor);

-		int tile_y = sub_region / num_horizontal_tiles;

-		int tile_x = sub_region - (tile_y * num_horizontal_tiles);

-			

-		whole_screen.setLeftTopAndSize(tile_x * tile_width, gViewerWindow->getWorldViewHeightScaled() - (tile_y * tile_height), tile_width, tile_height);

-	}

-	return whole_screen;

-}

-

-bool get_hud_matrices(const LLRect& screen_region, glh::matrix4f &proj, glh::matrix4f &model)

-{

-	if (isAgentAvatarValid() && gAgentAvatarp->hasHUDAttachment())

-	{

-		F32 zoom_level = gAgentCamera.mHUDCurZoom;

-		LLBBox hud_bbox = gAgentAvatarp->getHUDBBox();

-		

-		F32 hud_depth = llmax(1.f, hud_bbox.getExtentLocal().mV[VX] * 1.1f);

-		proj = gl_ortho(-0.5f * LLViewerCamera::getInstance()->getAspect(), 0.5f * LLViewerCamera::getInstance()->getAspect(), -0.5f, 0.5f, 0.f, hud_depth);

-		proj.element(2,2) = -0.01f;

-		

-		F32 aspect_ratio = LLViewerCamera::getInstance()->getAspect();

-		

-		glh::matrix4f mat;

-		F32 scale_x = (F32)gViewerWindow->getWorldViewWidthScaled() / (F32)screen_region.getWidth();

-		F32 scale_y = (F32)gViewerWindow->getWorldViewHeightScaled() / (F32)screen_region.getHeight();

-		mat.set_scale(glh::vec3f(scale_x, scale_y, 1.f));

-		mat.set_translate(

-			glh::vec3f(clamp_rescale((F32)(screen_region.getCenterX() - screen_region.mLeft), 0.f, (F32)gViewerWindow->getWorldViewWidthScaled(), 0.5f * scale_x * aspect_ratio, -0.5f * scale_x * aspect_ratio),

-					   clamp_rescale((F32)(screen_region.getCenterY() - screen_region.mBottom), 0.f, (F32)gViewerWindow->getWorldViewHeightScaled(), 0.5f * scale_y, -0.5f * scale_y),

-					   0.f));

-		proj *= mat;

-		

-		glh::matrix4f tmp_model((GLfloat*) OGL_TO_CFR_ROTATION);

-		

-		mat.set_scale(glh::vec3f(zoom_level, zoom_level, zoom_level));

-		mat.set_translate(glh::vec3f(-hud_bbox.getCenterLocal().mV[VX] + (hud_depth * 0.5f), 0.f, 0.f));

-		

-		tmp_model *= mat;

-		model = tmp_model;		

-		return TRUE;

-	}

-	else

-	{

-		return FALSE;

-	}

-}

-

-bool get_hud_matrices(glh::matrix4f &proj, glh::matrix4f &model)

-{

-	LLRect whole_screen = get_whole_screen_region();

-	return get_hud_matrices(whole_screen, proj, model);

-}

-

-BOOL setup_hud_matrices()

-{

-	LLRect whole_screen = get_whole_screen_region();

-	return setup_hud_matrices(whole_screen);

-}

-

-BOOL setup_hud_matrices(const LLRect& screen_region)

-{

-	glh::matrix4f proj, model;

-	bool result = get_hud_matrices(screen_region, proj, model);

-	if (!result) return result;

-	

-	// set up transform to keep HUD objects in front of camera

-	gGL.matrixMode(LLRender::MM_PROJECTION);

-	gGL.loadMatrix(proj.m);

-	glh_set_current_projection(proj);

-	

-	gGL.matrixMode(LLRender::MM_MODELVIEW);

-	gGL.loadMatrix(model.m);

-	glh_set_current_modelview(model);

-	return TRUE;

-}

-

-static LLFastTimer::DeclareTimer FTM_SWAP("Swap");

-

-void render_ui(F32 zoom_factor, int subfield)

-{

-	LLMemType mt_ru(LLMemType::MTYPE_DISPLAY_RENDER_UI);

-	LLGLState::checkStates();

-	

-	glh::matrix4f saved_view = glh_get_current_modelview();

-

-	if (!gSnapshot)

-	{

-		gGL.pushMatrix();

-		gGL.loadMatrix(gGLLastModelView);

-		glh_set_current_modelview(glh_copy_matrix(gGLLastModelView));

-	}

-	

-	{

-		BOOL to_texture = gPipeline.canUseVertexShaders() &&

-							LLPipeline::sRenderGlow;

-

-		if (to_texture)

-		{

-			gPipeline.renderBloom(gSnapshot, zoom_factor, subfield);

-		}

-		

-		render_hud_elements();

-		render_hud_attachments();

-	}

-

-	LLGLSDefault gls_default;

-	LLGLSUIDefault gls_ui;

-	{

-		gPipeline.disableLights();

-	}

-

-	{

-		gGL.color4f(1,1,1,1);

-		if (gPipeline.hasRenderDebugFeatureMask(LLPipeline::RENDER_DEBUG_FEATURE_UI))

-		{

-			LLFastTimer t(FTM_RENDER_UI);

-

-			if (!gDisconnected)

-			{

-				render_ui_3d();

-				LLGLState::checkStates();

-			}

-			else

-			{

-				render_disconnected_background();

-			}

-			render_ui_2d();

-			LLGLState::checkStates();

-		}

-		gGL.flush();

-

-		{

-			gViewerWindow->setup2DRender();

-			gViewerWindow->updateDebugText();

-			gViewerWindow->drawDebugText();

-		}

-

-		LLVertexBuffer::unbind();

-	}

-

-	if (!gSnapshot)

-	{

-		glh_set_current_modelview(saved_view);

-		gGL.popMatrix();

-	}

-

-	if (gDisplaySwapBuffers)

-	{

-		LLFastTimer t(FTM_SWAP);

-		gViewerWindow->getWindow()->swapBuffers();

-	}

-	gDisplaySwapBuffers = TRUE;

-}

-

-void renderCoordinateAxes()

-{

-	gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);

-	gGL.begin(LLRender::LINES);

-		gGL.color3f(1.0f, 0.0f, 0.0f);   // i direction = X-Axis = red

-		gGL.vertex3f(0.0f, 0.0f, 0.0f);

-		gGL.vertex3f(2.0f, 0.0f, 0.0f);

-		gGL.vertex3f(3.0f, 0.0f, 0.0f);

-		gGL.vertex3f(5.0f, 0.0f, 0.0f);

-		gGL.vertex3f(6.0f, 0.0f, 0.0f);

-		gGL.vertex3f(8.0f, 0.0f, 0.0f);

-		// Make an X

-		gGL.vertex3f(11.0f, 1.0f, 1.0f);

-		gGL.vertex3f(11.0f, -1.0f, -1.0f);

-		gGL.vertex3f(11.0f, 1.0f, -1.0f);

-		gGL.vertex3f(11.0f, -1.0f, 1.0f);

-

-		gGL.color3f(0.0f, 1.0f, 0.0f);   // j direction = Y-Axis = green

-		gGL.vertex3f(0.0f, 0.0f, 0.0f);

-		gGL.vertex3f(0.0f, 2.0f, 0.0f);

-		gGL.vertex3f(0.0f, 3.0f, 0.0f);

-		gGL.vertex3f(0.0f, 5.0f, 0.0f);

-		gGL.vertex3f(0.0f, 6.0f, 0.0f);

-		gGL.vertex3f(0.0f, 8.0f, 0.0f);

-		// Make a Y

-		gGL.vertex3f(1.0f, 11.0f, 1.0f);

-		gGL.vertex3f(0.0f, 11.0f, 0.0f);

-		gGL.vertex3f(-1.0f, 11.0f, 1.0f);

-		gGL.vertex3f(0.0f, 11.0f, 0.0f);

-		gGL.vertex3f(0.0f, 11.0f, 0.0f);

-		gGL.vertex3f(0.0f, 11.0f, -1.0f);

-

-		gGL.color3f(0.0f, 0.0f, 1.0f);   // Z-Axis = blue

-		gGL.vertex3f(0.0f, 0.0f, 0.0f);

-		gGL.vertex3f(0.0f, 0.0f, 2.0f);

-		gGL.vertex3f(0.0f, 0.0f, 3.0f);

-		gGL.vertex3f(0.0f, 0.0f, 5.0f);

-		gGL.vertex3f(0.0f, 0.0f, 6.0f);

-		gGL.vertex3f(0.0f, 0.0f, 8.0f);

-		// Make a Z

-		gGL.vertex3f(-1.0f, 1.0f, 11.0f);

-		gGL.vertex3f(1.0f, 1.0f, 11.0f);

-		gGL.vertex3f(1.0f, 1.0f, 11.0f);

-		gGL.vertex3f(-1.0f, -1.0f, 11.0f);

-		gGL.vertex3f(-1.0f, -1.0f, 11.0f);

-		gGL.vertex3f(1.0f, -1.0f, 11.0f);

-	gGL.end();

-}

-

-

-void draw_axes() 

-{

-	LLGLSUIDefault gls_ui;

-	gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);

-	// A vertical white line at origin

-	LLVector3 v = gAgent.getPositionAgent();

-	gGL.begin(LLRender::LINES);

-		gGL.color3f(1.0f, 1.0f, 1.0f); 

-		gGL.vertex3f(0.0f, 0.0f, 0.0f);

-		gGL.vertex3f(0.0f, 0.0f, 40.0f);

-	gGL.end();

-	// Some coordinate axes

-	gGL.pushMatrix();

-		gGL.translatef( v.mV[VX], v.mV[VY], v.mV[VZ] );

-		renderCoordinateAxes();

-	gGL.popMatrix();

-}

-

-void render_ui_3d()

-{

-	LLGLSPipeline gls_pipeline;

-

-	//////////////////////////////////////

-	//

-	// Render 3D UI elements

-	// NOTE: zbuffer is cleared before we get here by LLDrawPoolHUD,

-	//		 so 3d elements requiring Z buffer are moved to LLDrawPoolHUD

-	//

-

-	/////////////////////////////////////////////////////////////

-	//

-	// Render 2.5D elements (2D elements in the world)

-	// Stuff without z writes

-	//

-

-	// Debugging stuff goes before the UI.

-

-	stop_glerror();

-	

-	if (LLGLSLShader::sNoFixedFunction)

-	{

-		gUIProgram.bind();

-	}

-

-	// Coordinate axes

-	if (gSavedSettings.getBOOL("ShowAxes"))

-	{

-		draw_axes();

-	}

-

-	gViewerWindow->renderSelections(FALSE, FALSE, TRUE); // Non HUD call in render_hud_elements

-	stop_glerror();

-}

-

-void render_ui_2d()

-{

-	LLGLSUIDefault gls_ui;

-

-	/////////////////////////////////////////////////////////////

-	//

-	// Render 2D UI elements that overlay the world (no z compare)

-

-	//  Disable wireframe mode below here, as this is HUD/menus

-	glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);

-

-	//  Menu overlays, HUD, etc

-	gViewerWindow->setup2DRender();

-

-	F32 zoom_factor = LLViewerCamera::getInstance()->getZoomFactor();

-	S16 sub_region = LLViewerCamera::getInstance()->getZoomSubRegion();

-

-	if (zoom_factor > 1.f)

-	{

-		//decompose subregion number to x and y values

-		int pos_y = sub_region / llceil(zoom_factor);

-		int pos_x = sub_region - (pos_y*llceil(zoom_factor));

-		// offset for this tile

-		LLFontGL::sCurOrigin.mX -= llround((F32)gViewerWindow->getWindowWidthScaled() * (F32)pos_x / zoom_factor);

-		LLFontGL::sCurOrigin.mY -= llround((F32)gViewerWindow->getWindowHeightScaled() * (F32)pos_y / zoom_factor);

-	}

-

-	stop_glerror();

-	//gGL.getTexUnit(0)->setTextureBlendType(LLTexUnit::TB_MULT);

-

-	// render outline for HUD

-	if (isAgentAvatarValid() && gAgentCamera.mHUDCurZoom < 0.98f)

-	{

-		gGL.pushMatrix();

-		S32 half_width = (gViewerWindow->getWorldViewWidthScaled() / 2);

-		S32 half_height = (gViewerWindow->getWorldViewHeightScaled() / 2);

-		gGL.scalef(LLUI::sGLScaleFactor.mV[0], LLUI::sGLScaleFactor.mV[1], 1.f);

-		gGL.translatef((F32)half_width, (F32)half_height, 0.f);

-		F32 zoom = gAgentCamera.mHUDCurZoom;

-		gGL.scalef(zoom,zoom,1.f);

-		gGL.color4fv(LLColor4::white.mV);

-		gl_rect_2d(-half_width, half_height, half_width, -half_height, FALSE);

-		gGL.popMatrix();

-		stop_glerror();

-	}

-	

-

-	if (gSavedSettings.getBOOL("RenderUIBuffer"))

-	{

-		if (LLUI::sDirty)

-		{

-			LLUI::sDirty = FALSE;

-			LLRect t_rect;

-

-			gPipeline.mUIScreen.bindTarget();

-			gGL.setColorMask(true, true);

-			{

-				static const S32 pad = 8;

-

-				LLUI::sDirtyRect.mLeft -= pad;

-				LLUI::sDirtyRect.mRight += pad;

-				LLUI::sDirtyRect.mBottom -= pad;

-				LLUI::sDirtyRect.mTop += pad;

-

-				LLGLEnable scissor(GL_SCISSOR_TEST);

-				static LLRect last_rect = LLUI::sDirtyRect;

-

-				//union with last rect to avoid mouse poop

-				last_rect.unionWith(LLUI::sDirtyRect);

-								

-				t_rect = LLUI::sDirtyRect;

-				LLUI::sDirtyRect = last_rect;

-				last_rect = t_rect;

-			

-				last_rect.mLeft = LLRect::tCoordType(last_rect.mLeft / LLUI::sGLScaleFactor.mV[0]);

-				last_rect.mRight = LLRect::tCoordType(last_rect.mRight / LLUI::sGLScaleFactor.mV[0]);

-				last_rect.mTop = LLRect::tCoordType(last_rect.mTop / LLUI::sGLScaleFactor.mV[1]);

-				last_rect.mBottom = LLRect::tCoordType(last_rect.mBottom / LLUI::sGLScaleFactor.mV[1]);

-

-				LLRect clip_rect(last_rect);

-				

-				glClear(GL_COLOR_BUFFER_BIT);

-

-				gViewerWindow->draw();

-			}

-

-			gPipeline.mUIScreen.flush();

-			gGL.setColorMask(true, false);

-

-			LLUI::sDirtyRect = t_rect;

-		}

-

-		LLGLDisable cull(GL_CULL_FACE);

-		LLGLDisable blend(GL_BLEND);

-		S32 width = gViewerWindow->getWindowWidthScaled();

-		S32 height = gViewerWindow->getWindowHeightScaled();

-		gGL.getTexUnit(0)->bind(&gPipeline.mUIScreen);

-		gGL.begin(LLRender::TRIANGLE_STRIP);

-		gGL.color4f(1,1,1,1);

-		gGL.texCoord2f(0, 0);			gGL.vertex2i(0, 0);

-		gGL.texCoord2f(width, 0);		gGL.vertex2i(width, 0);

-		gGL.texCoord2f(0, height);		gGL.vertex2i(0, height);

-		gGL.texCoord2f(width, height);	gGL.vertex2i(width, height);

-		gGL.end();

-	}

-	else

-	{

-		gViewerWindow->draw();

-	}

-

-

-

-	// reset current origin for font rendering, in case of tiling render

-	LLFontGL::sCurOrigin.set(0, 0);

-}

-

-void render_disconnected_background()

-{

-	if (LLGLSLShader::sNoFixedFunction)

-	{

-		gUIProgram.bind();

-	}

-

-	gGL.color4f(1,1,1,1);

-	if (!gDisconnectedImagep && gDisconnected)

-	{

-		llinfos << "Loading last bitmap..." << llendl;

-

-		std::string temp_str;

-		temp_str = gDirUtilp->getLindenUserDir() + gDirUtilp->getDirDelimiter() + SCREEN_LAST_FILENAME;

-

-		LLPointer<LLImageBMP> image_bmp = new LLImageBMP;

-		if( !image_bmp->load(temp_str) )

-		{

-			//llinfos << "Bitmap load failed" << llendl;

-			return;

-		}

-		

-		LLPointer<LLImageRaw> raw = new LLImageRaw;

-		if (!image_bmp->decode(raw, 0.0f))

-		{

-			llinfos << "Bitmap decode failed" << llendl;

-			gDisconnectedImagep = NULL;

-			return;

-		}

-

-		U8 *rawp = raw->getData();

-		S32 npixels = (S32)image_bmp->getWidth()*(S32)image_bmp->getHeight();

-		for (S32 i = 0; i < npixels; i++)

-		{

-			S32 sum = 0;

-			sum = *rawp + *(rawp+1) + *(rawp+2);

-			sum /= 3;

-			*rawp = ((S32)sum*6 + *rawp)/7;

-			rawp++;

-			*rawp = ((S32)sum*6 + *rawp)/7;

-			rawp++;

-			*rawp = ((S32)sum*6 + *rawp)/7;

-			rawp++;

-		}

-

-		

-		raw->expandToPowerOfTwo();

-		gDisconnectedImagep = LLViewerTextureManager::getLocalTexture(raw.get(), FALSE );

-		gStartTexture = gDisconnectedImagep;

-		gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);

-	}

-

-	// Make sure the progress view always fills the entire window.

-	S32 width = gViewerWindow->getWindowWidthScaled();

-	S32 height = gViewerWindow->getWindowHeightScaled();

-

-	if (gDisconnectedImagep)

-	{

-		LLGLSUIDefault gls_ui;

-		gViewerWindow->setup2DRender();

-		gGL.pushMatrix();

-		{

-			// scale ui to reflect UIScaleFactor

-			// this can't be done in setup2DRender because it requires a

-			// pushMatrix/popMatrix pair

-			const LLVector2& display_scale = gViewerWindow->getDisplayScale();

-			gGL.scalef(display_scale.mV[VX], display_scale.mV[VY], 1.f);

-

-			gGL.getTexUnit(0)->bind(gDisconnectedImagep);

-			gGL.color4f(1.f, 1.f, 1.f, 1.f);

-			gl_rect_2d_simple_tex(width, height);

-			gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);

-		}

-		gGL.popMatrix();

-	}

-	gGL.flush();

-

-	if (LLGLSLShader::sNoFixedFunction)

-	{

-		gUIProgram.unbind();

-	}

-

-}

-

-void display_cleanup()

-{

-	gDisconnectedImagep = NULL;

-}

+/** 
+ * @file llviewerdisplay.cpp
+ * @brief LLViewerDisplay class implementation
+ *
+ * $LicenseInfo:firstyear=2004&license=viewerlgpl$
+ * Second Life Viewer Source Code
+ * Copyright (C) 2010, 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 "llviewerdisplay.h"
+
+#include "llgl.h"
+#include "llrender.h"
+#include "llglheaders.h"
+#include "llagent.h"
+#include "llagentcamera.h"
+#include "llviewercontrol.h"
+#include "llcoord.h"
+#include "llcriticaldamp.h"
+#include "lldir.h"
+#include "lldynamictexture.h"
+#include "lldrawpoolalpha.h"
+#include "llfeaturemanager.h"
+//#include "llfirstuse.h"
+#include "llhudmanager.h"
+#include "llimagebmp.h"
+#include "llmemory.h"
+#include "llselectmgr.h"
+#include "llsky.h"
+#include "llstartup.h"
+#include "lltoolfocus.h"
+#include "lltoolmgr.h"
+#include "lltooldraganddrop.h"
+#include "lltoolpie.h"
+#include "lltracker.h"
+#include "lltrans.h"
+#include "llui.h"
+#include "llviewercamera.h"
+#include "llviewerobjectlist.h"
+#include "llviewerparcelmgr.h"
+#include "llviewerwindow.h"
+#include "llvoavatarself.h"
+#include "llvograss.h"
+#include "llworld.h"
+#include "pipeline.h"
+#include "llspatialpartition.h"
+#include "llappviewer.h"
+#include "llstartup.h"
+#include "llviewershadermgr.h"
+#include "llfasttimer.h"
+#include "llfloatertools.h"
+#include "llviewertexturelist.h"
+#include "llfocusmgr.h"
+#include "llcubemap.h"
+#include "llviewerregion.h"
+#include "lldrawpoolwater.h"
+#include "lldrawpoolbump.h"
+#include "llwlparammanager.h"
+#include "llwaterparammanager.h"
+#include "llpostprocess.h"
+
+extern LLPointer<LLViewerTexture> gStartTexture;
+
+LLPointer<LLViewerTexture> gDisconnectedImagep = NULL;
+
+// used to toggle renderer back on after teleport
+const F32 TELEPORT_RENDER_DELAY = 20.f; // Max time a teleport is allowed to take before we raise the curtain
+const F32 TELEPORT_ARRIVAL_DELAY = 2.f; // Time to preload the world before raising the curtain after we've actually already arrived.
+const F32 TELEPORT_LOCAL_DELAY = 1.0f;  // Delay to prevent teleports after starting an in-sim teleport.
+BOOL		 gTeleportDisplay = FALSE;
+LLFrameTimer gTeleportDisplayTimer;
+LLFrameTimer gTeleportArrivalTimer;
+const F32		RESTORE_GL_TIME = 5.f;	// Wait this long while reloading textures before we raise the curtain
+
+BOOL gForceRenderLandFence = FALSE;
+BOOL gDisplaySwapBuffers = FALSE;
+BOOL gDepthDirty = FALSE;
+BOOL gResizeScreenTexture = FALSE;
+BOOL gWindowResized = FALSE;
+BOOL gSnapshot = FALSE;
+
+U32 gRecentFrameCount = 0; // number of 'recent' frames
+LLFrameTimer gRecentFPSTime;
+LLFrameTimer gRecentMemoryTime;
+
+// Rendering stuff
+void pre_show_depth_buffer();
+void post_show_depth_buffer();
+void render_ui(F32 zoom_factor = 1.f, int subfield = 0);
+void render_hud_attachments();
+void render_ui_3d();
+void render_ui_2d();
+void render_disconnected_background();
+
+void display_startup()
+{
+	if (   !gViewerWindow->getActive()
+		|| !gViewerWindow->getWindow()->getVisible() 
+		|| gViewerWindow->getWindow()->getMinimized() )
+	{
+		return; 
+	}
+
+	gPipeline.updateGL();
+
+	// Update images?
+	//gImageList.updateImages(0.01f);
+	LLTexUnit::sWhiteTexture = LLViewerFetchedTexture::sWhiteImagep->getTexName();
+
+	LLGLSDefault gls_default;
+
+	// Required for HTML update in login screen
+	static S32 frame_count = 0;
+
+	LLGLState::checkStates();
+	LLGLState::checkTextureChannels();
+
+	if (frame_count++ > 1) // make sure we have rendered a frame first
+	{
+		LLViewerDynamicTexture::updateAllInstances();
+	}
+
+	LLGLState::checkStates();
+	LLGLState::checkTextureChannels();
+
+	glClear(GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
+	LLGLSUIDefault gls_ui;
+	gPipeline.disableLights();
+
+	gViewerWindow->setup2DRender();
+	gGL.getTexUnit(0)->setTextureBlendType(LLTexUnit::TB_MULT);
+
+	gGL.color4f(1,1,1,1);
+	gViewerWindow->draw();
+	gGL.flush();
+
+	LLVertexBuffer::unbind();
+
+	LLGLState::checkStates();
+	LLGLState::checkTextureChannels();
+
+	gViewerWindow->getWindow()->swapBuffers();
+	glClear(GL_DEPTH_BUFFER_BIT);
+}
+
+void display_update_camera()
+{
+	LLMemType mt_uc(LLMemType::MTYPE_DISPLAY_UPDATE_CAMERA);
+	// TODO: cut draw distance down if customizing avatar?
+	// TODO: cut draw distance on per-parcel basis?
+
+	// Cut draw distance in half when customizing avatar,
+	// but on the viewer only.
+	F32 final_far = gAgentCamera.mDrawDistance;
+	if (CAMERA_MODE_CUSTOMIZE_AVATAR == gAgentCamera.getCameraMode())
+	{
+		final_far *= 0.5f;
+	}
+	LLViewerCamera::getInstance()->setFar(final_far);
+	gViewerWindow->setup3DRender();
+	
+	// update all the sky/atmospheric/water settings
+	LLWLParamManager::getInstance()->update(LLViewerCamera::getInstance());
+	LLWaterParamManager::getInstance()->update(LLViewerCamera::getInstance());
+
+	// Update land visibility too
+	LLWorld::getInstance()->setLandFarClip(final_far);
+}
+
+// Write some stats to llinfos
+void display_stats()
+{
+	F32 fps_log_freq = gSavedSettings.getF32("FPSLogFrequency");
+	if (fps_log_freq > 0.f && gRecentFPSTime.getElapsedTimeF32() >= fps_log_freq)
+	{
+		F32 fps = gRecentFrameCount / fps_log_freq;
+		llinfos << llformat("FPS: %.02f", fps) << llendl;
+		gRecentFrameCount = 0;
+		gRecentFPSTime.reset();
+	}
+	F32 mem_log_freq = gSavedSettings.getF32("MemoryLogFrequency");
+	if (mem_log_freq > 0.f && gRecentMemoryTime.getElapsedTimeF32() >= mem_log_freq)
+	{
+		gMemoryAllocated = LLMemory::getCurrentRSS();
+		U32 memory = (U32)(gMemoryAllocated / (1024*1024));
+		llinfos << llformat("MEMORY: %d MB", memory) << llendl;
+		LLMemory::logMemoryInfo(TRUE) ;
+		gRecentMemoryTime.reset();
+	}
+}
+
+static LLFastTimer::DeclareTimer FTM_PICK("Picking");
+static LLFastTimer::DeclareTimer FTM_RENDER("Render", true);
+static LLFastTimer::DeclareTimer FTM_UPDATE_SKY("Update Sky");
+static LLFastTimer::DeclareTimer FTM_UPDATE_TEXTURES("Update Textures");
+static LLFastTimer::DeclareTimer FTM_IMAGE_UPDATE("Update Images");
+static LLFastTimer::DeclareTimer FTM_IMAGE_UPDATE_CLASS("Class");
+static LLFastTimer::DeclareTimer FTM_IMAGE_UPDATE_BUMP("Bump");
+static LLFastTimer::DeclareTimer FTM_IMAGE_UPDATE_LIST("List");
+static LLFastTimer::DeclareTimer FTM_IMAGE_UPDATE_DELETE("Delete");
+
+// Paint the display!
+void display(BOOL rebuild, F32 zoom_factor, int subfield, BOOL for_snapshot)
+{
+	LLMemType mt_render(LLMemType::MTYPE_RENDER);
+	LLFastTimer t(FTM_RENDER);
+
+	if (gWindowResized)
+	{ //skip render on frames where window has been resized
+		gGL.flush();
+		glClear(GL_COLOR_BUFFER_BIT);
+		gViewerWindow->getWindow()->swapBuffers();
+		LLPipeline::refreshCachedSettings();
+		gPipeline.resizeScreenTexture();
+		gResizeScreenTexture = FALSE;
+		gWindowResized = FALSE;
+		return;
+	}
+
+	if (LLPipeline::sRenderDeferred)
+	{ //hack to make sky show up in deferred snapshots
+		for_snapshot = FALSE;
+	}
+
+	if (LLPipeline::sRenderFrameTest)
+	{
+		send_agent_pause();
+	}
+
+	gSnapshot = for_snapshot;
+
+	LLGLSDefault gls_default;
+	LLGLDepthTest gls_depth(GL_TRUE, GL_TRUE, GL_LEQUAL);
+	
+	LLVertexBuffer::unbind();
+
+	LLGLState::checkStates();
+	LLGLState::checkTextureChannels();
+	
+	stop_glerror();
+
+	gPipeline.disableLights();
+	
+	//reset vertex buffers if needed
+	gPipeline.doResetVertexBuffers();
+
+	stop_glerror();
+
+	// Don't draw if the window is hidden or minimized.
+	// In fact, must explicitly check the minimized state before drawing.
+	// Attempting to draw into a minimized window causes a GL error. JC
+	if (   !gViewerWindow->getActive()
+		|| !gViewerWindow->getWindow()->getVisible() 
+		|| gViewerWindow->getWindow()->getMinimized() )
+	{
+		// Clean up memory the pools may have allocated
+		if (rebuild)
+		{
+			stop_glerror();
+			gPipeline.rebuildPools();
+			stop_glerror();
+		}
+
+		stop_glerror();
+		gViewerWindow->returnEmptyPicks();
+		stop_glerror();
+		return; 
+	}
+
+	gViewerWindow->checkSettings();
+	
+	{
+		LLFastTimer ftm(FTM_PICK);
+		LLAppViewer::instance()->pingMainloopTimeout("Display:Pick");
+		gViewerWindow->performPick();
+	}
+	
+	LLAppViewer::instance()->pingMainloopTimeout("Display:CheckStates");
+	LLGLState::checkStates();
+	LLGLState::checkTextureChannels();
+	
+	//////////////////////////////////////////////////////////
+	//
+	// Logic for forcing window updates if we're in drone mode.
+	//
+
+	// *TODO: Investigate running display() during gHeadlessClient.  See if this early exit is needed DK 2011-02-18
+	if (gHeadlessClient) 
+	{
+#if LL_WINDOWS
+		static F32 last_update_time = 0.f;
+		if ((gFrameTimeSeconds - last_update_time) > 1.f)
+		{
+			InvalidateRect((HWND)gViewerWindow->getPlatformWindow(), NULL, FALSE);
+			last_update_time = gFrameTimeSeconds;
+		}
+#elif LL_DARWIN
+		// MBW -- Do something clever here.
+#endif
+		// Not actually rendering, don't bother.
+		return;
+	}
+
+
+	//
+	// Bail out if we're in the startup state and don't want to try to
+	// render the world.
+	//
+	if (LLStartUp::getStartupState() < STATE_STARTED)
+	{
+		LLAppViewer::instance()->pingMainloopTimeout("Display:Startup");
+		display_startup();
+		return;
+	}
+
+	//LLGLState::verify(FALSE);
+
+	/////////////////////////////////////////////////
+	//
+	// Update GL Texture statistics (used for discard logic?)
+	//
+
+	LLAppViewer::instance()->pingMainloopTimeout("Display:TextureStats");
+	stop_glerror();
+
+	LLImageGL::updateStats(gFrameTimeSeconds);
+	
+	LLVOAvatar::sRenderName = gSavedSettings.getS32("AvatarNameTagMode");
+	LLVOAvatar::sRenderGroupTitles = (gSavedSettings.getBOOL("NameTagShowGroupTitles") && gSavedSettings.getS32("AvatarNameTagMode"));
+	
+	gPipeline.mBackfaceCull = TRUE;
+	gFrameCount++;
+	gRecentFrameCount++;
+	if (gFocusMgr.getAppHasFocus())
+	{
+		gForegroundFrameCount++;
+	}
+
+	//////////////////////////////////////////////////////////
+	//
+	// Display start screen if we're teleporting, and skip render
+	//
+
+	if (gTeleportDisplay)
+	{
+		LLAppViewer::instance()->pingMainloopTimeout("Display:Teleport");
+		const F32 TELEPORT_ARRIVAL_DELAY = 2.f; // Time to preload the world before raising the curtain after we've actually already arrived.
+
+		S32 attach_count = 0;
+		if (isAgentAvatarValid())
+		{
+			attach_count = gAgentAvatarp->getAttachmentCount();
+		}
+		F32 teleport_save_time = TELEPORT_EXPIRY + TELEPORT_EXPIRY_PER_ATTACHMENT * attach_count;
+		F32 teleport_elapsed = gTeleportDisplayTimer.getElapsedTimeF32();
+		F32 teleport_percent = teleport_elapsed * (100.f / teleport_save_time);
+		if( (gAgent.getTeleportState() != LLAgent::TELEPORT_START) && (teleport_percent > 100.f) )
+		{
+			// Give up.  Don't keep the UI locked forever.
+			gAgent.setTeleportState( LLAgent::TELEPORT_NONE );
+			gAgent.setTeleportMessage(std::string());
+		}
+
+		const std::string& message = gAgent.getTeleportMessage();
+		switch( gAgent.getTeleportState() )
+		{
+		case LLAgent::TELEPORT_START:
+			// Transition to REQUESTED.  Viewer has sent some kind
+			// of TeleportRequest to the source simulator
+			gTeleportDisplayTimer.reset();
+			gViewerWindow->setShowProgress(TRUE);
+			gViewerWindow->setProgressPercent(0);
+			gAgent.setTeleportState( LLAgent::TELEPORT_REQUESTED );
+			gAgent.setTeleportMessage(
+				LLAgent::sTeleportProgressMessages["requesting"]);
+			break;
+
+		case LLAgent::TELEPORT_REQUESTED:
+			// Waiting for source simulator to respond
+			gViewerWindow->setProgressPercent( llmin(teleport_percent, 37.5f) );
+			gViewerWindow->setProgressString(message);
+			break;
+
+		case LLAgent::TELEPORT_MOVING:
+			// Viewer has received destination location from source simulator
+			gViewerWindow->setProgressPercent( llmin(teleport_percent, 75.f) );
+			gViewerWindow->setProgressString(message);
+			break;
+
+		case LLAgent::TELEPORT_START_ARRIVAL:
+			// Transition to ARRIVING.  Viewer has received avatar update, etc., from destination simulator
+			gTeleportArrivalTimer.reset();
+				gViewerWindow->setProgressCancelButtonVisible(FALSE, LLTrans::getString("Cancel"));
+			gViewerWindow->setProgressPercent(75.f);
+			gAgent.setTeleportState( LLAgent::TELEPORT_ARRIVING );
+			gAgent.setTeleportMessage(
+				LLAgent::sTeleportProgressMessages["arriving"]);
+			gTextureList.mForceResetTextureStats = TRUE;
+			gAgentCamera.resetView(TRUE, TRUE);
+			break;
+
+		case LLAgent::TELEPORT_ARRIVING:
+			// Make the user wait while content "pre-caches"
+			{
+				F32 arrival_fraction = (gTeleportArrivalTimer.getElapsedTimeF32() / TELEPORT_ARRIVAL_DELAY);
+				if( arrival_fraction > 1.f )
+				{
+					arrival_fraction = 1.f;
+					//LLFirstUse::useTeleport();
+					gAgent.setTeleportState( LLAgent::TELEPORT_NONE );
+				}
+				gViewerWindow->setProgressCancelButtonVisible(FALSE, LLTrans::getString("Cancel"));
+				gViewerWindow->setProgressPercent(  arrival_fraction * 25.f + 75.f);
+				gViewerWindow->setProgressString(message);
+			}
+			break;
+
+		case LLAgent::TELEPORT_LOCAL:
+			// Short delay when teleporting in the same sim (progress screen active but not shown - did not
+			// fall-through from TELEPORT_START)
+			{
+				if( gTeleportDisplayTimer.getElapsedTimeF32() > TELEPORT_LOCAL_DELAY )
+				{
+					//LLFirstUse::useTeleport();
+					gAgent.setTeleportState( LLAgent::TELEPORT_NONE );
+				}
+			}
+			break;
+
+		case LLAgent::TELEPORT_NONE:
+			// No teleport in progress
+			gViewerWindow->setShowProgress(FALSE);
+			gTeleportDisplay = FALSE;
+			break;
+		}
+	}
+    else if(LLAppViewer::instance()->logoutRequestSent())
+	{
+		LLAppViewer::instance()->pingMainloopTimeout("Display:Logout");
+		F32 percent_done = gLogoutTimer.getElapsedTimeF32() * 100.f / gLogoutMaxTime;
+		if (percent_done > 100.f)
+		{
+			percent_done = 100.f;
+		}
+
+		if( LLApp::isExiting() )
+		{
+			percent_done = 100.f;
+		}
+		
+		gViewerWindow->setProgressPercent( percent_done );
+	}
+	else
+	if (gRestoreGL)
+	{
+		LLAppViewer::instance()->pingMainloopTimeout("Display:RestoreGL");
+		F32 percent_done = gRestoreGLTimer.getElapsedTimeF32() * 100.f / RESTORE_GL_TIME;
+		if( percent_done > 100.f )
+		{
+			gViewerWindow->setShowProgress(FALSE);
+			gRestoreGL = FALSE;
+		}
+		else
+		{
+
+			if( LLApp::isExiting() )
+			{
+				percent_done = 100.f;
+			}
+			
+			gViewerWindow->setProgressPercent( percent_done );
+		}
+	}
+
+	//////////////////////////
+	//
+	// Prepare for the next frame
+	//
+
+	/////////////////////////////
+	//
+	// Update the camera
+	//
+	//
+
+	LLAppViewer::instance()->pingMainloopTimeout("Display:Camera");
+	LLViewerCamera::getInstance()->setZoomParameters(zoom_factor, subfield);
+	LLViewerCamera::getInstance()->setNear(MIN_NEAR_PLANE);
+
+	//////////////////////////
+	//
+	// clear the next buffer
+	// (must follow dynamic texture writing since that uses the frame buffer)
+	//
+
+	if (gDisconnected)
+	{
+		LLAppViewer::instance()->pingMainloopTimeout("Display:Disconnected");
+		render_ui();
+	}
+	
+	//////////////////////////
+	//
+	// Set rendering options
+	//
+	//
+	LLAppViewer::instance()->pingMainloopTimeout("Display:RenderSetup");
+	stop_glerror();
+
+	///////////////////////////////////////
+	//
+	// Slam lighting parameters back to our defaults.
+	// Note that these are not the same as GL defaults...
+
+	stop_glerror();
+	gGL.setAmbientLightColor(LLColor4::white);
+	stop_glerror();
+			
+	/////////////////////////////////////
+	//
+	// Render
+	//
+	// Actually push all of our triangles to the screen.
+	//
+
+	// do render-to-texture stuff here
+	if (gPipeline.hasRenderDebugFeatureMask(LLPipeline::RENDER_DEBUG_FEATURE_DYNAMIC_TEXTURES))
+	{
+		LLAppViewer::instance()->pingMainloopTimeout("Display:DynamicTextures");
+		LLFastTimer t(FTM_UPDATE_TEXTURES);
+		if (LLViewerDynamicTexture::updateAllInstances())
+		{
+			gGL.setColorMask(true, true);
+			glClear(GL_DEPTH_BUFFER_BIT);
+		}
+	}
+
+	gViewerWindow->setup3DViewport();
+
+	gPipeline.resetFrameStats();	// Reset per-frame statistics.
+	
+	if (!gDisconnected)
+	{
+		LLMemType mt_du(LLMemType::MTYPE_DISPLAY_UPDATE);
+		LLAppViewer::instance()->pingMainloopTimeout("Display:Update");
+		if (gPipeline.hasRenderType(LLPipeline::RENDER_TYPE_HUD))
+		{ //don't draw hud objects in this frame
+			gPipeline.toggleRenderType(LLPipeline::RENDER_TYPE_HUD);
+		}
+
+		if (gPipeline.hasRenderType(LLPipeline::RENDER_TYPE_HUD_PARTICLES))
+		{ //don't draw hud particles in this frame
+			gPipeline.toggleRenderType(LLPipeline::RENDER_TYPE_HUD_PARTICLES);
+		}
+
+		//upkeep gl name pools
+		LLGLNamePool::upkeepPools();
+		
+		stop_glerror();
+		display_update_camera();
+		stop_glerror();
+				
+		// *TODO: merge these two methods
+		{
+			LLMemType mt_uh(LLMemType::MTYPE_DISPLAY_UPDATE_HUD);
+			LLHUDManager::getInstance()->updateEffects();
+			LLHUDObject::updateAll();
+			stop_glerror();
+		}
+
+		{
+			LLMemType mt_ug(LLMemType::MTYPE_DISPLAY_UPDATE_GEOM);
+			const F32 max_geom_update_time = 0.005f*10.f*gFrameIntervalSeconds; // 50 ms/second update time
+			gPipeline.createObjects(max_geom_update_time);
+			gPipeline.processPartitionQ();
+			gPipeline.updateGeom(max_geom_update_time);
+			stop_glerror();
+		}
+
+		gPipeline.updateGL();
+		stop_glerror();
+
+		S32 water_clip = 0;
+		if ((LLViewerShaderMgr::instance()->getVertexShaderLevel(LLViewerShaderMgr::SHADER_ENVIRONMENT) > 1) &&
+			 (gPipeline.hasRenderType(LLPipeline::RENDER_TYPE_WATER) || 
+			  gPipeline.hasRenderType(LLPipeline::RENDER_TYPE_VOIDWATER)))
+		{
+			if (LLViewerCamera::getInstance()->cameraUnderWater())
+			{
+				water_clip = -1;
+			}
+			else
+			{
+				water_clip = 1;
+			}
+		}
+		
+		LLAppViewer::instance()->pingMainloopTimeout("Display:Cull");
+		
+		//Increment drawable frame counter
+		LLDrawable::incrementVisible();
+
+		LLSpatialGroup::sNoDelete = TRUE;
+		LLTexUnit::sWhiteTexture = LLViewerFetchedTexture::sWhiteImagep->getTexName();
+
+		/*if (LLPipeline::sUseOcclusion && LLPipeline::sRenderDeferred)
+		{ //force occlusion on for all render types if doing deferred render (tighter shadow frustum)
+			LLPipeline::sUseOcclusion = 3;
+		}*/
+
+		S32 occlusion = LLPipeline::sUseOcclusion;
+		if (gDepthDirty)
+		{ //depth buffer is invalid, don't overwrite occlusion state
+			LLPipeline::sUseOcclusion = llmin(occlusion, 1);
+		}
+		gDepthDirty = FALSE;
+
+		LLGLState::checkStates();
+		LLGLState::checkTextureChannels();
+		LLGLState::checkClientArrays();
+
+		static LLCullResult result;
+		LLViewerCamera::sCurCameraID = LLViewerCamera::CAMERA_WORLD;
+		gPipeline.updateCull(*LLViewerCamera::getInstance(), result, water_clip);
+		stop_glerror();
+
+		LLGLState::checkStates();
+		LLGLState::checkTextureChannels();
+		LLGLState::checkClientArrays();
+
+		BOOL to_texture = gPipeline.canUseVertexShaders() &&
+						LLPipeline::sRenderGlow;
+
+		LLAppViewer::instance()->pingMainloopTimeout("Display:Swap");
+		
+		{ 
+			LLMemType mt_ds(LLMemType::MTYPE_DISPLAY_SWAP);
+
+			if (gResizeScreenTexture)
+			{
+				gResizeScreenTexture = FALSE;
+				gPipeline.resizeScreenTexture();
+			}
+
+			gGL.setColorMask(true, true);
+			glClearColor(0,0,0,0);
+
+			LLGLState::checkStates();
+			LLGLState::checkTextureChannels();
+			LLGLState::checkClientArrays();
+
+			if (!for_snapshot)
+			{
+				if (gFrameCount > 1)
+				{ //for some reason, ATI 4800 series will error out if you 
+				  //try to generate a shadow before the first frame is through
+					gPipeline.generateSunShadow(*LLViewerCamera::getInstance());
+				}
+
+				LLVertexBuffer::unbind();
+
+				LLGLState::checkStates();
+				LLGLState::checkTextureChannels();
+				LLGLState::checkClientArrays();
+
+				glh::matrix4f proj = glh_get_current_projection();
+				glh::matrix4f mod = glh_get_current_modelview();
+				glViewport(0,0,512,512);
+				LLVOAvatar::updateFreezeCounter() ;
+
+				if(!LLPipeline::sMemAllocationThrottled)
+				{		
+					LLVOAvatar::updateImpostors();
+				}
+
+				glh_set_current_projection(proj);
+				glh_set_current_modelview(mod);
+				gGL.matrixMode(LLRender::MM_PROJECTION);
+				gGL.loadMatrix(proj.m);
+				gGL.matrixMode(LLRender::MM_MODELVIEW);
+				gGL.loadMatrix(mod.m);
+				gViewerWindow->setup3DViewport();
+
+				LLGLState::checkStates();
+				LLGLState::checkTextureChannels();
+				LLGLState::checkClientArrays();
+
+			}
+			glClear(GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
+		}
+
+		LLGLState::checkStates();
+		LLGLState::checkClientArrays();
+
+		//if (!for_snapshot)
+		{
+			LLMemType mt_gw(LLMemType::MTYPE_DISPLAY_GEN_REFLECTION);
+			LLAppViewer::instance()->pingMainloopTimeout("Display:Imagery");
+			gPipeline.generateWaterReflection(*LLViewerCamera::getInstance());
+			gPipeline.generateHighlight(*LLViewerCamera::getInstance());
+			gPipeline.renderPhysicsDisplay();
+		}
+
+		LLGLState::checkStates();
+		LLGLState::checkClientArrays();
+
+		//////////////////////////////////////
+		//
+		// Update images, using the image stats generated during object update/culling
+		//
+		// Can put objects onto the retextured list.
+		//
+		// Doing this here gives hardware occlusion queries extra time to complete
+		LLAppViewer::instance()->pingMainloopTimeout("Display:UpdateImages");
+		
+		{
+			LLMemType mt_iu(LLMemType::MTYPE_DISPLAY_IMAGE_UPDATE);
+			LLFastTimer t(FTM_IMAGE_UPDATE);
+			
+			{
+				LLFastTimer t(FTM_IMAGE_UPDATE_CLASS);
+				LLViewerTexture::updateClass(LLViewerCamera::getInstance()->getVelocityStat()->getMean(),
+											LLViewerCamera::getInstance()->getAngularVelocityStat()->getMean());
+			}
+
+			
+			{
+				LLFastTimer t(FTM_IMAGE_UPDATE_BUMP);
+				gBumpImageList.updateImages();  // must be called before gTextureList version so that it's textures are thrown out first.
+			}
+
+			{
+				LLFastTimer t(FTM_IMAGE_UPDATE_LIST);
+				F32 max_image_decode_time = 0.050f*gFrameIntervalSeconds; // 50 ms/second decode time
+				max_image_decode_time = llclamp(max_image_decode_time, 0.002f, 0.005f ); // min 2ms/frame, max 5ms/frame)
+				gTextureList.updateImages(max_image_decode_time);
+			}
+
+			{
+				LLFastTimer t(FTM_IMAGE_UPDATE_DELETE);
+				//remove dead textures from GL
+				LLImageGL::deleteDeadTextures();
+				stop_glerror();
+			}
+		}
+
+		LLGLState::checkStates();
+		LLGLState::checkClientArrays();
+
+		///////////////////////////////////
+		//
+		// StateSort
+		//
+		// Responsible for taking visible objects, and adding them to the appropriate draw orders.
+		// In the case of alpha objects, z-sorts them first.
+		// Also creates special lists for outlines and selected face rendering.
+		//
+		LLAppViewer::instance()->pingMainloopTimeout("Display:StateSort");
+		{
+			LLViewerCamera::sCurCameraID = LLViewerCamera::CAMERA_WORLD;
+			LLMemType mt_ss(LLMemType::MTYPE_DISPLAY_STATE_SORT);
+			gPipeline.stateSort(*LLViewerCamera::getInstance(), result);
+			stop_glerror();
+				
+			if (rebuild)
+			{
+				//////////////////////////////////////
+				//
+				// rebuildPools
+				//
+				//
+				gPipeline.rebuildPools();
+				stop_glerror();
+			}
+		}
+
+		LLGLState::checkStates();
+		LLGLState::checkClientArrays();
+
+		LLPipeline::sUseOcclusion = occlusion;
+
+		{
+			LLMemType mt_ds(LLMemType::MTYPE_DISPLAY_SKY);
+			LLAppViewer::instance()->pingMainloopTimeout("Display:Sky");
+			LLFastTimer t(FTM_UPDATE_SKY);	
+			gSky.updateSky();
+		}
+
+		if(gUseWireframe)
+		{
+			glClearColor(0.5f, 0.5f, 0.5f, 0.f);
+			glClear(GL_COLOR_BUFFER_BIT);
+			glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
+		}
+
+		LLAppViewer::instance()->pingMainloopTimeout("Display:RenderStart");
+		
+		//// render frontmost floater opaque for occlusion culling purposes
+		//LLFloater* frontmost_floaterp = gFloaterView->getFrontmost();
+		//// assumes frontmost floater with focus is opaque
+		//if (frontmost_floaterp && gFocusMgr.childHasKeyboardFocus(frontmost_floaterp))
+		//{
+		//	gGL.matrixMode(LLRender::MM_MODELVIEW);
+		//	gGL.pushMatrix();
+		//	{
+		//		gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);
+
+		//		glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_TRUE);
+		//		gGL.loadIdentity();
+
+		//		LLRect floater_rect = frontmost_floaterp->calcScreenRect();
+		//		// deflate by one pixel so rounding errors don't occlude outside of floater extents
+		//		floater_rect.stretch(-1);
+		//		LLRectf floater_3d_rect((F32)floater_rect.mLeft / (F32)gViewerWindow->getWindowWidthScaled(), 
+		//								(F32)floater_rect.mTop / (F32)gViewerWindow->getWindowHeightScaled(),
+		//								(F32)floater_rect.mRight / (F32)gViewerWindow->getWindowWidthScaled(),
+		//								(F32)floater_rect.mBottom / (F32)gViewerWindow->getWindowHeightScaled());
+		//		floater_3d_rect.translate(-0.5f, -0.5f);
+		//		gGL.translatef(0.f, 0.f, -LLViewerCamera::getInstance()->getNear());
+		//		gGL.scalef(LLViewerCamera::getInstance()->getNear() * LLViewerCamera::getInstance()->getAspect() / sinf(LLViewerCamera::getInstance()->getView()), LLViewerCamera::getInstance()->getNear() / sinf(LLViewerCamera::getInstance()->getView()), 1.f);
+		//		gGL.color4fv(LLColor4::white.mV);
+		//		gGL.begin(LLVertexBuffer::QUADS);
+		//		{
+		//			gGL.vertex3f(floater_3d_rect.mLeft, floater_3d_rect.mBottom, 0.f);
+		//			gGL.vertex3f(floater_3d_rect.mLeft, floater_3d_rect.mTop, 0.f);
+		//			gGL.vertex3f(floater_3d_rect.mRight, floater_3d_rect.mTop, 0.f);
+		//			gGL.vertex3f(floater_3d_rect.mRight, floater_3d_rect.mBottom, 0.f);
+		//		}
+		//		gGL.end();
+		//		glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
+		//	}
+		//	gGL.popMatrix();
+		//}
+
+		LLPipeline::sUnderWaterRender = LLViewerCamera::getInstance()->cameraUnderWater() ? TRUE : FALSE;
+		
+		LLGLState::checkStates();
+		LLGLState::checkClientArrays();
+
+		stop_glerror();
+
+		if (to_texture)
+		{
+			gGL.setColorMask(true, true);
+					
+			if (LLPipeline::sRenderDeferred && !LLPipeline::sUnderWaterRender)
+			{
+				gPipeline.mDeferredScreen.bindTarget();
+				glClearColor(1,0,1,1);
+				gPipeline.mDeferredScreen.clear();
+			}
+			else
+			{
+				gPipeline.mScreen.bindTarget();
+				if (LLPipeline::sUnderWaterRender && !gPipeline.canUseWindLightShaders())
+				{
+					const LLColor4 &col = LLDrawPoolWater::sWaterFogColor;
+					glClearColor(col.mV[0], col.mV[1], col.mV[2], 0.f);
+				}
+				gPipeline.mScreen.clear();
+			}
+			
+			gGL.setColorMask(true, false);
+		}
+		
+		LLAppViewer::instance()->pingMainloopTimeout("Display:RenderGeom");
+		
+		if (!(LLAppViewer::instance()->logoutRequestSent() && LLAppViewer::instance()->hasSavedFinalSnapshot())
+				&& !gRestoreGL)
+		{
+			LLViewerCamera::sCurCameraID = LLViewerCamera::CAMERA_WORLD;
+			LLMemType mt_rg(LLMemType::MTYPE_DISPLAY_RENDER_GEOM);
+			gGL.setColorMask(true, false);
+			if (LLPipeline::sRenderDeferred && !LLPipeline::sUnderWaterRender)
+			{
+				gPipeline.renderGeomDeferred(*LLViewerCamera::getInstance());
+			}
+			else
+			{
+				gPipeline.renderGeom(*LLViewerCamera::getInstance(), TRUE);
+			}
+			
+			gGL.setColorMask(true, true);
+
+			//store this frame's modelview matrix for use
+			//when rendering next frame's occlusion queries
+			for (U32 i = 0; i < 16; i++)
+			{
+				gGLLastModelView[i] = gGLModelView[i];
+				gGLLastProjection[i] = gGLProjection[i];
+			}
+			stop_glerror();
+		}
+
+		for (U32 i = 0; i < gGLManager.mNumTextureImageUnits; i++)
+		{ //dummy cleanup of any currently bound textures
+			if (gGL.getTexUnit(i)->getCurrType() != LLTexUnit::TT_NONE)
+			{
+				gGL.getTexUnit(i)->unbind(gGL.getTexUnit(i)->getCurrType());
+				gGL.getTexUnit(i)->disable();
+			}
+		}
+		LLAppViewer::instance()->pingMainloopTimeout("Display:RenderFlush");		
+		
+		if (to_texture)
+		{
+			LLMemType mt_rf(LLMemType::MTYPE_DISPLAY_RENDER_FLUSH);
+			if (LLPipeline::sRenderDeferred && !LLPipeline::sUnderWaterRender)
+			{
+				gPipeline.mDeferredScreen.flush();
+				if(LLRenderTarget::sUseFBO)
+				{
+					LLRenderTarget::copyContentsToFramebuffer(gPipeline.mDeferredScreen, 0, 0, gPipeline.mDeferredScreen.getWidth(), 
+															  gPipeline.mDeferredScreen.getHeight(), 0, 0, 
+															  gPipeline.mDeferredScreen.getWidth(), 
+															  gPipeline.mDeferredScreen.getHeight(), 
+															  GL_DEPTH_BUFFER_BIT, GL_NEAREST);
+				}
+			}
+			else
+			{
+				gPipeline.mScreen.flush();
+				if(LLRenderTarget::sUseFBO)
+				{				
+					LLRenderTarget::copyContentsToFramebuffer(gPipeline.mScreen, 0, 0, gPipeline.mScreen.getWidth(), 
+															  gPipeline.mScreen.getHeight(), 0, 0, 
+															  gPipeline.mScreen.getWidth(), 
+															  gPipeline.mScreen.getHeight(), 
+															  GL_DEPTH_BUFFER_BIT, GL_NEAREST);
+				}
+			}
+		}
+
+		if (LLPipeline::sRenderDeferred && !LLPipeline::sUnderWaterRender)
+		{
+			gPipeline.renderDeferredLighting();
+		}
+
+		LLPipeline::sUnderWaterRender = FALSE;
+
+		LLAppViewer::instance()->pingMainloopTimeout("Display:RenderUI");
+		if (!for_snapshot)
+		{
+			LLFastTimer t(FTM_RENDER_UI);
+			render_ui();
+		}
+
+		
+		LLSpatialGroup::sNoDelete = FALSE;
+		gPipeline.clearReferences();
+
+		gPipeline.rebuildGroups();
+	}
+
+	LLAppViewer::instance()->pingMainloopTimeout("Display:FrameStats");
+	
+	stop_glerror();
+
+	if (LLPipeline::sRenderFrameTest)
+	{
+		send_agent_resume();
+		LLPipeline::sRenderFrameTest = FALSE;
+	}
+
+	display_stats();
+				
+	LLAppViewer::instance()->pingMainloopTimeout("Display:Done");
+}
+
+void render_hud_attachments()
+{
+	LLMemType mt_ra(LLMemType::MTYPE_DISPLAY_RENDER_ATTACHMENTS);
+	gGL.matrixMode(LLRender::MM_PROJECTION);
+	gGL.pushMatrix();
+	gGL.matrixMode(LLRender::MM_MODELVIEW);
+	gGL.pushMatrix();
+		
+	glh::matrix4f current_proj = glh_get_current_projection();
+	glh::matrix4f current_mod = glh_get_current_modelview();
+
+	// clamp target zoom level to reasonable values
+	gAgentCamera.mHUDTargetZoom = llclamp(gAgentCamera.mHUDTargetZoom, 0.1f, 1.f);
+	// smoothly interpolate current zoom level
+	gAgentCamera.mHUDCurZoom = lerp(gAgentCamera.mHUDCurZoom, gAgentCamera.mHUDTargetZoom, LLCriticalDamp::getInterpolant(0.03f));
+
+	if (LLPipeline::sShowHUDAttachments && !gDisconnected && setup_hud_matrices())
+	{
+		LLCamera hud_cam = *LLViewerCamera::getInstance();
+		LLVector3 origin = hud_cam.getOrigin();
+		hud_cam.setOrigin(-1.f,0,0);
+		hud_cam.setAxes(LLVector3(1,0,0), LLVector3(0,1,0), LLVector3(0,0,1));
+		LLViewerCamera::updateFrustumPlanes(hud_cam, TRUE);
+
+		bool render_particles = gPipeline.hasRenderType(LLPipeline::RENDER_TYPE_PARTICLES) && gSavedSettings.getBOOL("RenderHUDParticles");
+		
+		//only render hud objects
+		gPipeline.pushRenderTypeMask();
+		
+		// turn off everything
+		gPipeline.andRenderTypeMask(LLPipeline::END_RENDER_TYPES);
+		// turn on HUD
+		gPipeline.toggleRenderType(LLPipeline::RENDER_TYPE_HUD);
+		// turn on HUD particles
+		gPipeline.toggleRenderType(LLPipeline::RENDER_TYPE_HUD_PARTICLES);
+
+		// if particles are off, turn off hud-particles as well
+		if (!render_particles)
+		{
+			// turn back off HUD particles
+			gPipeline.toggleRenderType(LLPipeline::RENDER_TYPE_HUD_PARTICLES);
+		}
+
+		bool has_ui = gPipeline.hasRenderDebugFeatureMask(LLPipeline::RENDER_DEBUG_FEATURE_UI);
+		if (has_ui)
+		{
+			gPipeline.toggleRenderDebugFeature((void*) LLPipeline::RENDER_DEBUG_FEATURE_UI);
+		}
+
+		S32 use_occlusion = LLPipeline::sUseOcclusion;
+		LLPipeline::sUseOcclusion = 0;
+				
+		//cull, sort, and render hud objects
+		static LLCullResult result;
+		LLSpatialGroup::sNoDelete = TRUE;
+
+		LLViewerCamera::sCurCameraID = LLViewerCamera::CAMERA_WORLD;
+		gPipeline.updateCull(hud_cam, result);
+
+		gPipeline.toggleRenderType(LLPipeline::RENDER_TYPE_BUMP);
+		gPipeline.toggleRenderType(LLPipeline::RENDER_TYPE_SIMPLE);
+		gPipeline.toggleRenderType(LLPipeline::RENDER_TYPE_VOLUME);
+		gPipeline.toggleRenderType(LLPipeline::RENDER_TYPE_ALPHA);
+		gPipeline.toggleRenderType(LLPipeline::RENDER_TYPE_FULLBRIGHT);
+		gPipeline.toggleRenderType(LLPipeline::RENDER_TYPE_PASS_ALPHA);
+		gPipeline.toggleRenderType(LLPipeline::RENDER_TYPE_PASS_ALPHA_MASK);
+		gPipeline.toggleRenderType(LLPipeline::RENDER_TYPE_PASS_BUMP);
+		gPipeline.toggleRenderType(LLPipeline::RENDER_TYPE_PASS_FULLBRIGHT);
+		gPipeline.toggleRenderType(LLPipeline::RENDER_TYPE_PASS_FULLBRIGHT_ALPHA_MASK);
+		gPipeline.toggleRenderType(LLPipeline::RENDER_TYPE_PASS_FULLBRIGHT_SHINY);
+		gPipeline.toggleRenderType(LLPipeline::RENDER_TYPE_PASS_SHINY);
+		gPipeline.toggleRenderType(LLPipeline::RENDER_TYPE_PASS_INVISIBLE);
+		gPipeline.toggleRenderType(LLPipeline::RENDER_TYPE_PASS_INVISI_SHINY);
+		
+		gPipeline.stateSort(hud_cam, result);
+
+		gPipeline.renderGeom(hud_cam);
+
+		LLSpatialGroup::sNoDelete = FALSE;
+		//gPipeline.clearReferences();
+
+		render_hud_elements();
+
+		//restore type mask
+		gPipeline.popRenderTypeMask();
+
+		if (has_ui)
+		{
+			gPipeline.toggleRenderDebugFeature((void*) LLPipeline::RENDER_DEBUG_FEATURE_UI);
+		}
+		LLPipeline::sUseOcclusion = use_occlusion;
+	}
+	gGL.matrixMode(LLRender::MM_PROJECTION);
+	gGL.popMatrix();
+	gGL.matrixMode(LLRender::MM_MODELVIEW);
+	gGL.popMatrix();
+	
+	glh_set_current_projection(current_proj);
+	glh_set_current_modelview(current_mod);
+}
+
+LLRect get_whole_screen_region()
+{
+	LLRect whole_screen = gViewerWindow->getWorldViewRectScaled();
+	
+	// apply camera zoom transform (for high res screenshots)
+	F32 zoom_factor = LLViewerCamera::getInstance()->getZoomFactor();
+	S16 sub_region = LLViewerCamera::getInstance()->getZoomSubRegion();
+	if (zoom_factor > 1.f)
+	{
+		S32 num_horizontal_tiles = llceil(zoom_factor);
+		S32 tile_width = llround((F32)gViewerWindow->getWorldViewWidthScaled() / zoom_factor);
+		S32 tile_height = llround((F32)gViewerWindow->getWorldViewHeightScaled() / zoom_factor);
+		int tile_y = sub_region / num_horizontal_tiles;
+		int tile_x = sub_region - (tile_y * num_horizontal_tiles);
+			
+		whole_screen.setLeftTopAndSize(tile_x * tile_width, gViewerWindow->getWorldViewHeightScaled() - (tile_y * tile_height), tile_width, tile_height);
+	}
+	return whole_screen;
+}
+
+bool get_hud_matrices(const LLRect& screen_region, glh::matrix4f &proj, glh::matrix4f &model)
+{
+	if (isAgentAvatarValid() && gAgentAvatarp->hasHUDAttachment())
+	{
+		F32 zoom_level = gAgentCamera.mHUDCurZoom;
+		LLBBox hud_bbox = gAgentAvatarp->getHUDBBox();
+		
+		F32 hud_depth = llmax(1.f, hud_bbox.getExtentLocal().mV[VX] * 1.1f);
+		proj = gl_ortho(-0.5f * LLViewerCamera::getInstance()->getAspect(), 0.5f * LLViewerCamera::getInstance()->getAspect(), -0.5f, 0.5f, 0.f, hud_depth);
+		proj.element(2,2) = -0.01f;
+		
+		F32 aspect_ratio = LLViewerCamera::getInstance()->getAspect();
+		
+		glh::matrix4f mat;
+		F32 scale_x = (F32)gViewerWindow->getWorldViewWidthScaled() / (F32)screen_region.getWidth();
+		F32 scale_y = (F32)gViewerWindow->getWorldViewHeightScaled() / (F32)screen_region.getHeight();
+		mat.set_scale(glh::vec3f(scale_x, scale_y, 1.f));
+		mat.set_translate(
+			glh::vec3f(clamp_rescale((F32)(screen_region.getCenterX() - screen_region.mLeft), 0.f, (F32)gViewerWindow->getWorldViewWidthScaled(), 0.5f * scale_x * aspect_ratio, -0.5f * scale_x * aspect_ratio),
+					   clamp_rescale((F32)(screen_region.getCenterY() - screen_region.mBottom), 0.f, (F32)gViewerWindow->getWorldViewHeightScaled(), 0.5f * scale_y, -0.5f * scale_y),
+					   0.f));
+		proj *= mat;
+		
+		glh::matrix4f tmp_model((GLfloat*) OGL_TO_CFR_ROTATION);
+		
+		mat.set_scale(glh::vec3f(zoom_level, zoom_level, zoom_level));
+		mat.set_translate(glh::vec3f(-hud_bbox.getCenterLocal().mV[VX] + (hud_depth * 0.5f), 0.f, 0.f));
+		
+		tmp_model *= mat;
+		model = tmp_model;		
+		return TRUE;
+	}
+	else
+	{
+		return FALSE;
+	}
+}
+
+bool get_hud_matrices(glh::matrix4f &proj, glh::matrix4f &model)
+{
+	LLRect whole_screen = get_whole_screen_region();
+	return get_hud_matrices(whole_screen, proj, model);
+}
+
+BOOL setup_hud_matrices()
+{
+	LLRect whole_screen = get_whole_screen_region();
+	return setup_hud_matrices(whole_screen);
+}
+
+BOOL setup_hud_matrices(const LLRect& screen_region)
+{
+	glh::matrix4f proj, model;
+	bool result = get_hud_matrices(screen_region, proj, model);
+	if (!result) return result;
+	
+	// set up transform to keep HUD objects in front of camera
+	gGL.matrixMode(LLRender::MM_PROJECTION);
+	gGL.loadMatrix(proj.m);
+	glh_set_current_projection(proj);
+	
+	gGL.matrixMode(LLRender::MM_MODELVIEW);
+	gGL.loadMatrix(model.m);
+	glh_set_current_modelview(model);
+	return TRUE;
+}
+
+static LLFastTimer::DeclareTimer FTM_SWAP("Swap");
+
+void render_ui(F32 zoom_factor, int subfield)
+{
+	LLMemType mt_ru(LLMemType::MTYPE_DISPLAY_RENDER_UI);
+	LLGLState::checkStates();
+	
+	glh::matrix4f saved_view = glh_get_current_modelview();
+
+	if (!gSnapshot)
+	{
+		gGL.pushMatrix();
+		gGL.loadMatrix(gGLLastModelView);
+		glh_set_current_modelview(glh_copy_matrix(gGLLastModelView));
+	}
+	
+	{
+		BOOL to_texture = gPipeline.canUseVertexShaders() &&
+							LLPipeline::sRenderGlow;
+
+		if (to_texture)
+		{
+			gPipeline.renderBloom(gSnapshot, zoom_factor, subfield);
+		}
+		
+		render_hud_elements();
+		render_hud_attachments();
+	}
+
+	LLGLSDefault gls_default;
+	LLGLSUIDefault gls_ui;
+	{
+		gPipeline.disableLights();
+	}
+
+	{
+		gGL.color4f(1,1,1,1);
+		if (gPipeline.hasRenderDebugFeatureMask(LLPipeline::RENDER_DEBUG_FEATURE_UI))
+		{
+			LLFastTimer t(FTM_RENDER_UI);
+
+			if (!gDisconnected)
+			{
+				render_ui_3d();
+				LLGLState::checkStates();
+			}
+			else
+			{
+				render_disconnected_background();
+			}
+
+			render_ui_2d();
+			LLGLState::checkStates();
+		}
+		gGL.flush();
+
+		{
+			gViewerWindow->setup2DRender();
+			gViewerWindow->updateDebugText();
+			gViewerWindow->drawDebugText();
+		}
+
+		LLVertexBuffer::unbind();
+	}
+
+	if (!gSnapshot)
+	{
+		glh_set_current_modelview(saved_view);
+		gGL.popMatrix();
+	}
+
+	if (gDisplaySwapBuffers)
+	{
+		LLFastTimer t(FTM_SWAP);
+		gViewerWindow->getWindow()->swapBuffers();
+	}
+	gDisplaySwapBuffers = TRUE;
+}
+
+void renderCoordinateAxes()
+{
+	gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);
+	gGL.begin(LLRender::LINES);
+		gGL.color3f(1.0f, 0.0f, 0.0f);   // i direction = X-Axis = red
+		gGL.vertex3f(0.0f, 0.0f, 0.0f);
+		gGL.vertex3f(2.0f, 0.0f, 0.0f);
+		gGL.vertex3f(3.0f, 0.0f, 0.0f);
+		gGL.vertex3f(5.0f, 0.0f, 0.0f);
+		gGL.vertex3f(6.0f, 0.0f, 0.0f);
+		gGL.vertex3f(8.0f, 0.0f, 0.0f);
+		// Make an X
+		gGL.vertex3f(11.0f, 1.0f, 1.0f);
+		gGL.vertex3f(11.0f, -1.0f, -1.0f);
+		gGL.vertex3f(11.0f, 1.0f, -1.0f);
+		gGL.vertex3f(11.0f, -1.0f, 1.0f);
+
+		gGL.color3f(0.0f, 1.0f, 0.0f);   // j direction = Y-Axis = green
+		gGL.vertex3f(0.0f, 0.0f, 0.0f);
+		gGL.vertex3f(0.0f, 2.0f, 0.0f);
+		gGL.vertex3f(0.0f, 3.0f, 0.0f);
+		gGL.vertex3f(0.0f, 5.0f, 0.0f);
+		gGL.vertex3f(0.0f, 6.0f, 0.0f);
+		gGL.vertex3f(0.0f, 8.0f, 0.0f);
+		// Make a Y
+		gGL.vertex3f(1.0f, 11.0f, 1.0f);
+		gGL.vertex3f(0.0f, 11.0f, 0.0f);
+		gGL.vertex3f(-1.0f, 11.0f, 1.0f);
+		gGL.vertex3f(0.0f, 11.0f, 0.0f);
+		gGL.vertex3f(0.0f, 11.0f, 0.0f);
+		gGL.vertex3f(0.0f, 11.0f, -1.0f);
+
+		gGL.color3f(0.0f, 0.0f, 1.0f);   // Z-Axis = blue
+		gGL.vertex3f(0.0f, 0.0f, 0.0f);
+		gGL.vertex3f(0.0f, 0.0f, 2.0f);
+		gGL.vertex3f(0.0f, 0.0f, 3.0f);
+		gGL.vertex3f(0.0f, 0.0f, 5.0f);
+		gGL.vertex3f(0.0f, 0.0f, 6.0f);
+		gGL.vertex3f(0.0f, 0.0f, 8.0f);
+		// Make a Z
+		gGL.vertex3f(-1.0f, 1.0f, 11.0f);
+		gGL.vertex3f(1.0f, 1.0f, 11.0f);
+		gGL.vertex3f(1.0f, 1.0f, 11.0f);
+		gGL.vertex3f(-1.0f, -1.0f, 11.0f);
+		gGL.vertex3f(-1.0f, -1.0f, 11.0f);
+		gGL.vertex3f(1.0f, -1.0f, 11.0f);
+	gGL.end();
+}
+
+
+void draw_axes() 
+{
+	LLGLSUIDefault gls_ui;
+	gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);
+	// A vertical white line at origin
+	LLVector3 v = gAgent.getPositionAgent();
+	gGL.begin(LLRender::LINES);
+		gGL.color3f(1.0f, 1.0f, 1.0f); 
+		gGL.vertex3f(0.0f, 0.0f, 0.0f);
+		gGL.vertex3f(0.0f, 0.0f, 40.0f);
+	gGL.end();
+	// Some coordinate axes
+	gGL.pushMatrix();
+		gGL.translatef( v.mV[VX], v.mV[VY], v.mV[VZ] );
+		renderCoordinateAxes();
+	gGL.popMatrix();
+}
+
+void render_ui_3d()
+{
+	LLGLSPipeline gls_pipeline;
+
+	//////////////////////////////////////
+	//
+	// Render 3D UI elements
+	// NOTE: zbuffer is cleared before we get here by LLDrawPoolHUD,
+	//		 so 3d elements requiring Z buffer are moved to LLDrawPoolHUD
+	//
+
+	/////////////////////////////////////////////////////////////
+	//
+	// Render 2.5D elements (2D elements in the world)
+	// Stuff without z writes
+	//
+
+	// Debugging stuff goes before the UI.
+
+	stop_glerror();
+	
+	if (LLGLSLShader::sNoFixedFunction)
+	{
+		gUIProgram.bind();
+	}
+
+	// Coordinate axes
+	if (gSavedSettings.getBOOL("ShowAxes"))
+	{
+		draw_axes();
+	}
+
+	gViewerWindow->renderSelections(FALSE, FALSE, TRUE); // Non HUD call in render_hud_elements
+	stop_glerror();
+}
+
+void render_ui_2d()
+{
+	LLGLSUIDefault gls_ui;
+
+	/////////////////////////////////////////////////////////////
+	//
+	// Render 2D UI elements that overlay the world (no z compare)
+
+	//  Disable wireframe mode below here, as this is HUD/menus
+	glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
+
+	//  Menu overlays, HUD, etc
+	gViewerWindow->setup2DRender();
+
+	F32 zoom_factor = LLViewerCamera::getInstance()->getZoomFactor();
+	S16 sub_region = LLViewerCamera::getInstance()->getZoomSubRegion();
+
+	if (zoom_factor > 1.f)
+	{
+		//decompose subregion number to x and y values
+		int pos_y = sub_region / llceil(zoom_factor);
+		int pos_x = sub_region - (pos_y*llceil(zoom_factor));
+		// offset for this tile
+		LLFontGL::sCurOrigin.mX -= llround((F32)gViewerWindow->getWindowWidthScaled() * (F32)pos_x / zoom_factor);
+		LLFontGL::sCurOrigin.mY -= llround((F32)gViewerWindow->getWindowHeightScaled() * (F32)pos_y / zoom_factor);
+	}
+
+	stop_glerror();
+	//gGL.getTexUnit(0)->setTextureBlendType(LLTexUnit::TB_MULT);
+
+	// render outline for HUD
+	if (isAgentAvatarValid() && gAgentCamera.mHUDCurZoom < 0.98f)
+	{
+		gGL.pushMatrix();
+		S32 half_width = (gViewerWindow->getWorldViewWidthScaled() / 2);
+		S32 half_height = (gViewerWindow->getWorldViewHeightScaled() / 2);
+		gGL.scalef(LLUI::sGLScaleFactor.mV[0], LLUI::sGLScaleFactor.mV[1], 1.f);
+		gGL.translatef((F32)half_width, (F32)half_height, 0.f);
+		F32 zoom = gAgentCamera.mHUDCurZoom;
+		gGL.scalef(zoom,zoom,1.f);
+		gGL.color4fv(LLColor4::white.mV);
+		gl_rect_2d(-half_width, half_height, half_width, -half_height, FALSE);
+		gGL.popMatrix();
+		stop_glerror();
+	}
+	
+
+	if (gSavedSettings.getBOOL("RenderUIBuffer"))
+	{
+		if (LLUI::sDirty)
+		{
+			LLUI::sDirty = FALSE;
+			LLRect t_rect;
+
+			gPipeline.mUIScreen.bindTarget();
+			gGL.setColorMask(true, true);
+			{
+				static const S32 pad = 8;
+
+				LLUI::sDirtyRect.mLeft -= pad;
+				LLUI::sDirtyRect.mRight += pad;
+				LLUI::sDirtyRect.mBottom -= pad;
+				LLUI::sDirtyRect.mTop += pad;
+
+				LLGLEnable scissor(GL_SCISSOR_TEST);
+				static LLRect last_rect = LLUI::sDirtyRect;
+
+				//union with last rect to avoid mouse poop
+				last_rect.unionWith(LLUI::sDirtyRect);
+								
+				t_rect = LLUI::sDirtyRect;
+				LLUI::sDirtyRect = last_rect;
+				last_rect = t_rect;
+			
+				last_rect.mLeft = LLRect::tCoordType(last_rect.mLeft / LLUI::sGLScaleFactor.mV[0]);
+				last_rect.mRight = LLRect::tCoordType(last_rect.mRight / LLUI::sGLScaleFactor.mV[0]);
+				last_rect.mTop = LLRect::tCoordType(last_rect.mTop / LLUI::sGLScaleFactor.mV[1]);
+				last_rect.mBottom = LLRect::tCoordType(last_rect.mBottom / LLUI::sGLScaleFactor.mV[1]);
+
+				LLRect clip_rect(last_rect);
+				
+				glClear(GL_COLOR_BUFFER_BIT);
+
+				gViewerWindow->draw();
+			}
+
+			gPipeline.mUIScreen.flush();
+			gGL.setColorMask(true, false);
+
+			LLUI::sDirtyRect = t_rect;
+		}
+
+		LLGLDisable cull(GL_CULL_FACE);
+		LLGLDisable blend(GL_BLEND);
+		S32 width = gViewerWindow->getWindowWidthScaled();
+		S32 height = gViewerWindow->getWindowHeightScaled();
+		gGL.getTexUnit(0)->bind(&gPipeline.mUIScreen);
+		gGL.begin(LLRender::TRIANGLE_STRIP);
+		gGL.color4f(1,1,1,1);
+		gGL.texCoord2f(0, 0);			gGL.vertex2i(0, 0);
+		gGL.texCoord2f(width, 0);		gGL.vertex2i(width, 0);
+		gGL.texCoord2f(0, height);		gGL.vertex2i(0, height);
+		gGL.texCoord2f(width, height);	gGL.vertex2i(width, height);
+		gGL.end();
+	}
+	else
+	{
+		gViewerWindow->draw();
+	}
+
+
+
+	// reset current origin for font rendering, in case of tiling render
+	LLFontGL::sCurOrigin.set(0, 0);
+}
+
+void render_disconnected_background()
+{
+	if (LLGLSLShader::sNoFixedFunction)
+	{
+		gUIProgram.bind();
+	}
+
+	gGL.color4f(1,1,1,1);
+	if (!gDisconnectedImagep && gDisconnected)
+	{
+		llinfos << "Loading last bitmap..." << llendl;
+
+		std::string temp_str;
+		temp_str = gDirUtilp->getLindenUserDir() + gDirUtilp->getDirDelimiter() + SCREEN_LAST_FILENAME;
+
+		LLPointer<LLImageBMP> image_bmp = new LLImageBMP;
+		if( !image_bmp->load(temp_str) )
+		{
+			//llinfos << "Bitmap load failed" << llendl;
+			return;
+		}
+		
+		LLPointer<LLImageRaw> raw = new LLImageRaw;
+		if (!image_bmp->decode(raw, 0.0f))
+		{
+			llinfos << "Bitmap decode failed" << llendl;
+			gDisconnectedImagep = NULL;
+			return;
+		}
+
+		U8 *rawp = raw->getData();
+		S32 npixels = (S32)image_bmp->getWidth()*(S32)image_bmp->getHeight();
+		for (S32 i = 0; i < npixels; i++)
+		{
+			S32 sum = 0;
+			sum = *rawp + *(rawp+1) + *(rawp+2);
+			sum /= 3;
+			*rawp = ((S32)sum*6 + *rawp)/7;
+			rawp++;
+			*rawp = ((S32)sum*6 + *rawp)/7;
+			rawp++;
+			*rawp = ((S32)sum*6 + *rawp)/7;
+			rawp++;
+		}
+
+		
+		raw->expandToPowerOfTwo();
+		gDisconnectedImagep = LLViewerTextureManager::getLocalTexture(raw.get(), FALSE );
+		gStartTexture = gDisconnectedImagep;
+		gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);
+	}
+
+	// Make sure the progress view always fills the entire window.
+	S32 width = gViewerWindow->getWindowWidthScaled();
+	S32 height = gViewerWindow->getWindowHeightScaled();
+
+	if (gDisconnectedImagep)
+	{
+		LLGLSUIDefault gls_ui;
+		gViewerWindow->setup2DRender();
+		gGL.pushMatrix();
+		{
+			// scale ui to reflect UIScaleFactor
+			// this can't be done in setup2DRender because it requires a
+			// pushMatrix/popMatrix pair
+			const LLVector2& display_scale = gViewerWindow->getDisplayScale();
+			gGL.scalef(display_scale.mV[VX], display_scale.mV[VY], 1.f);
+
+			gGL.getTexUnit(0)->bind(gDisconnectedImagep);
+			gGL.color4f(1.f, 1.f, 1.f, 1.f);
+			gl_rect_2d_simple_tex(width, height);
+			gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);
+		}
+		gGL.popMatrix();
+	}
+	gGL.flush();
+
+	if (LLGLSLShader::sNoFixedFunction)
+	{
+		gUIProgram.unbind();
+	}
+
+}
+
+void display_cleanup()
+{
+	gDisconnectedImagep = NULL;
+}