Merge

1 files changed, 1510 insertions, 1498 deletions

diff --git a/indra/newview/llviewerdisplay.cpp b/indra/newview/llviewerdisplay.cpp
index 88bf2006f9..6d59b687f3 100644
--- a/indra/newview/llviewerdisplay.cpp
+++ b/indra/newview/llviewerdisplay.cpp
@@ -1,1498 +1,1510 @@
-/** 
- * @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 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->mWindow->getVisible() 
-		|| gViewerWindow->mWindow->getMinimized()
-		|| gNoRender )
-	{
-		return; 
-	}
-
-	gPipeline.updateGL();
-
-	// Update images?
-	//gImageList.updateImages(0.01f);
-	
-	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->mWindow->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::instance()->update(LLViewerCamera::getInstance());
-	LLWaterParamManager::instance()->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;
-		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");
-
-// 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 (gResizeScreenTexture)
-	{ //skip render on frames where screen texture is resizing
-		gGL.flush();
-		glClear(GL_COLOR_BUFFER_BIT);
-		gViewerWindow->mWindow->swapBuffers();
-		gResizeScreenTexture = FALSE;
-		gPipeline.resizeScreenTexture();
-		return;
-	}
-
-	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();
-	
-	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->mWindow->getVisible() 
-		|| gViewerWindow->mWindow->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.
-	//
-
-	if (gNoRender) 
-	{
-#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();
-	F32 one[4] =	{1.f, 1.f, 1.f, 1.f};
-	glLightModelfv (GL_LIGHT_MODEL_AMBIENT,one);
-	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.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;
-		LLPipeline::sUseOcclusion = 
-				(!gUseWireframe
-				&& LLFeatureManager::getInstance()->isFeatureAvailable("UseOcclusion") 
-				&& gSavedSettings.getBOOL("UseOcclusion") 
-				&& gGLManager.mHasOcclusionQuery) ? 2 : 0;
-
-		if (LLPipeline::sUseOcclusion && LLPipeline::sRenderDeferred)
-		{ //force occlusion on for all render types if doing deferred render
-			LLPipeline::sUseOcclusion = 3;
-		}
-
-		LLPipeline::sAutoMaskAlphaDeferred = gSavedSettings.getBOOL("RenderAutoMaskAlphaDeferred");
-		LLPipeline::sAutoMaskAlphaNonDeferred = gSavedSettings.getBOOL("RenderAutoMaskAlphaNonDeferred");
-		LLPipeline::sUseFarClip = gSavedSettings.getBOOL("RenderUseFarClip");
-		LLVOAvatar::sMaxVisible = (U32)gSavedSettings.getS32("RenderAvatarMaxVisible");
-		LLPipeline::sDelayVBUpdate = gSavedSettings.getBOOL("RenderDelayVBUpdate");
-
-		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 = !for_snapshot &&
-						gPipeline.canUseVertexShaders() &&
-						LLPipeline::sRenderGlow;
-
-		LLAppViewer::instance()->pingMainloopTimeout("Display:Swap");
-		
-		{ 
-			LLMemType mt_ds(LLMemType::MTYPE_DISPLAY_SWAP);
-			{
- 				LLFastTimer ftm(FTM_CLIENT_COPY);
-				LLVertexBuffer::clientCopy(0.016);
-			}
-
-			//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() ;
-				LLVOAvatar::updateImpostors();
-
-				glh_set_current_projection(proj);
-				glh_set_current_modelview(mod);
-				glMatrixMode(GL_PROJECTION);
-				glLoadMatrixf(proj.m);
-				glMatrixMode(GL_MODELVIEW);
-				glLoadMatrixf(mod.m);
-				gViewerWindow->setup3DViewport();
-
-				LLGLState::checkStates();
-				LLGLState::checkTextureChannels();
-				LLGLState::checkClientArrays();
-
-			}
-			glClear(GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
-		}
-
-		if (!for_snapshot)
-		{
-			LLMemType mt_gw(LLMemType::MTYPE_DISPLAY_GEN_REFLECTION);
-			LLAppViewer::instance()->pingMainloopTimeout("Display:Imagery");
-			gPipeline.generateWaterReflection(*LLViewerCamera::getInstance());
-			gPipeline.generateHighlight(*LLViewerCamera::getInstance());
-		}
-
-		//////////////////////////////////////
-		//
-		// 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");
-		LLError::LLCallStacks::clear() ;
-		
-		{
-			LLMemType mt_iu(LLMemType::MTYPE_DISPLAY_IMAGE_UPDATE);
-			LLFastTimer t(FTM_IMAGE_UPDATE);
-			
-			LLViewerTexture::updateClass(LLViewerCamera::getInstance()->getVelocityStat()->getMean(),
-										LLViewerCamera::getInstance()->getAngularVelocityStat()->getMean());
-
-			gBumpImageList.updateImages();  // must be called before gTextureList version so that it's textures are thrown out first.
-
-			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);
-
-			//remove dead textures from GL
-			LLImageGL::deleteDeadTextures();
-			stop_glerror();
-		}
-		///////////////////////////////////
-		//
-		// 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.sAllowRebuildPriorityGroup = TRUE ;
-			gPipeline.stateSort(*LLViewerCamera::getInstance(), result);
-			stop_glerror();
-				
-			if (rebuild)
-			{
-				//////////////////////////////////////
-				//
-				// rebuildPools
-				//
-				//
-				gPipeline.rebuildPools();
-				stop_glerror();
-			}
-		}
-
-		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))
-		//{
-		//	glMatrixMode(GL_MODELVIEW);
-		//	glPushMatrix();
-		//	{
-		//		gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);
-
-		//		glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_TRUE);
-		//		glLoadIdentity();
-
-		//		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);
-		//		glTranslatef(0.f, 0.f, -LLViewerCamera::getInstance()->getNear());
-		//		glScalef(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);
-		//	}
-		//	glPopMatrix();
-		//}
-
-		LLPipeline::sUnderWaterRender = LLViewerCamera::getInstance()->cameraUnderWater() ? TRUE : FALSE;
-		LLPipeline::updateRenderDeferred();
-		
-		stop_glerror();
-
-		if (to_texture)
-		{
-			gGL.setColorMask(true, true);
-					
-			if (LLPipeline::sRenderDeferred && !LLPipeline::sUnderWaterRender)
-			{
-				gPipeline.mDeferredScreen.bindTarget();
-				glClearColor(0,0,0,0);
-				gPipeline.mDeferredScreen.clear();
-			}
-			else
-			{
-				gPipeline.mScreen.bindTarget();
-				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();
-		}
-
-		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);
-	glMatrixMode(GL_PROJECTION);
-	glPushMatrix();
-	glMatrixMode(GL_MODELVIEW);
-	glPushMatrix();
-		
-	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;
-		LLPipeline::sDisableShaders = TRUE;
-		
-		//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;
-		LLPipeline::sDisableShaders = FALSE;
-	}
-	glMatrixMode(GL_PROJECTION);
-	glPopMatrix();
-	glMatrixMode(GL_MODELVIEW);
-	glPopMatrix();
-	
-	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);
-		glh::matrix4f mat;
-		
-		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(), 0.f, (F32)gViewerWindow->getWorldViewWidthScaled(), 0.5f * scale_x * aspect_ratio, -0.5f * scale_x * aspect_ratio),
-					   clamp_rescale((F32)screen_region.getCenterY(), 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
-	glMatrixMode(GL_PROJECTION);
-	glLoadMatrixf(proj.m);
-	glh_set_current_projection(proj);
-	
-	glMatrixMode(GL_MODELVIEW);
-	glLoadMatrixf(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();
-	
-	glPushMatrix();
-	glLoadMatrixd(gGLLastModelView);
-	glh::matrix4f saved_view = glh_get_current_modelview();
-	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();
-	}
-
-	glh_set_current_modelview(saved_view);
-	glPopMatrix();
-
-	if (gDisplaySwapBuffers)
-	{
-		LLFastTimer t(FTM_SWAP);
-		gViewerWindow->mWindow->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
-	glPushMatrix();
-		glTranslatef( v.mV[VX], v.mV[VY], v.mV[VZ] );
-		renderCoordinateAxes();
-	glPopMatrix();
-}
-
-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.
-
-	// Coordinate axes
-	if (gSavedSettings.getBOOL("ShowAxes"))
-	{
-		draw_axes();
-	}
-
-	stop_glerror();
-		
-	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)
-	{
-		glPushMatrix();
-		S32 half_width = (gViewerWindow->getWorldViewWidthScaled() / 2);
-		S32 half_height = (gViewerWindow->getWorldViewHeightScaled() / 2);
-		glScalef(LLUI::sGLScaleFactor.mV[0], LLUI::sGLScaleFactor.mV[1], 1.f);
-		glTranslatef((F32)half_width, (F32)half_height, 0.f);
-		F32 zoom = gAgentCamera.mHUDCurZoom;
-		glScalef(zoom,zoom,1.f);
-		gGL.color4fv(LLColor4::white.mV);
-		gl_rect_2d(-half_width, half_height, half_width, -half_height, FALSE);
-		glPopMatrix();
-		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()
-{
-	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();
-		glPushMatrix();
-		{
-			// 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();
-			glScalef(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);
-		}
-		glPopMatrix();
-	}
-	gGL.flush();
-}
-
-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 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->mWindow->getVisible() 

+		|| gViewerWindow->mWindow->getMinimized()

+		|| gNoRender )

+	{

+		return; 

+	}

+

+	gPipeline.updateGL();

+

+	// Update images?

+	//gImageList.updateImages(0.01f);

+	

+	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->mWindow->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::instance()->update(LLViewerCamera::getInstance());

+	LLWaterParamManager::instance()->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;

+		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");

+

+// 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 (gResizeScreenTexture)

+	{ //skip render on frames where screen texture is resizing

+		gGL.flush();

+		if (!for_snapshot)

+		{

+			glClear(GL_COLOR_BUFFER_BIT);

+			gViewerWindow->mWindow->swapBuffers();

+		}

+	

+		gResizeScreenTexture = FALSE;

+		gPipeline.resizeScreenTexture();

+

+		if (!for_snapshot)

+		{

+			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();

+	

+	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->mWindow->getVisible() 

+		|| gViewerWindow->mWindow->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.

+	//

+

+	if (gNoRender) 

+	{

+#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();

+	F32 one[4] =	{1.f, 1.f, 1.f, 1.f};

+	glLightModelfv (GL_LIGHT_MODEL_AMBIENT,one);

+	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.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;

+		LLPipeline::sUseOcclusion = 

+				(!gUseWireframe

+				&& LLFeatureManager::getInstance()->isFeatureAvailable("UseOcclusion") 

+				&& gSavedSettings.getBOOL("UseOcclusion") 

+				&& gGLManager.mHasOcclusionQuery) ? 2 : 0;

+

+		if (LLPipeline::sUseOcclusion && LLPipeline::sRenderDeferred)

+		{ //force occlusion on for all render types if doing deferred render

+			LLPipeline::sUseOcclusion = 3;

+		}

+

+		LLPipeline::sAutoMaskAlphaDeferred = gSavedSettings.getBOOL("RenderAutoMaskAlphaDeferred");

+		LLPipeline::sAutoMaskAlphaNonDeferred = gSavedSettings.getBOOL("RenderAutoMaskAlphaNonDeferred");

+		LLPipeline::sUseFarClip = gSavedSettings.getBOOL("RenderUseFarClip");

+		LLVOAvatar::sMaxVisible = (U32)gSavedSettings.getS32("RenderAvatarMaxVisible");

+		LLPipeline::sDelayVBUpdate = gSavedSettings.getBOOL("RenderDelayVBUpdate");

+

+		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 = !for_snapshot &&

+						gPipeline.canUseVertexShaders() &&

+						LLPipeline::sRenderGlow;

+

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

+		

+		{ 

+			LLMemType mt_ds(LLMemType::MTYPE_DISPLAY_SWAP);

+			{

+ 				LLFastTimer ftm(FTM_CLIENT_COPY);

+				LLVertexBuffer::clientCopy(0.016);

+			}

+

+			//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() ;

+				LLVOAvatar::updateImpostors();

+

+				glh_set_current_projection(proj);

+				glh_set_current_modelview(mod);

+				glMatrixMode(GL_PROJECTION);

+				glLoadMatrixf(proj.m);

+				glMatrixMode(GL_MODELVIEW);

+				glLoadMatrixf(mod.m);

+				gViewerWindow->setup3DViewport();

+

+				LLGLState::checkStates();

+				LLGLState::checkTextureChannels();

+				LLGLState::checkClientArrays();

+

+			}

+			glClear(GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);

+		}

+

+		if (!for_snapshot)

+		{

+			LLMemType mt_gw(LLMemType::MTYPE_DISPLAY_GEN_REFLECTION);

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

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

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

+		}

+

+		//////////////////////////////////////

+		//

+		// 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);

+			

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

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

+

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

+

+			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);

+

+			//remove dead textures from GL

+			LLImageGL::deleteDeadTextures();

+			stop_glerror();

+		}

+		///////////////////////////////////

+		//

+		// 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.sAllowRebuildPriorityGroup = TRUE ;

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

+			stop_glerror();

+				

+			if (rebuild)

+			{

+				//////////////////////////////////////

+				//

+				// rebuildPools

+				//

+				//

+				gPipeline.rebuildPools();

+				stop_glerror();

+			}

+		}

+

+		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))

+		//{

+		//	glMatrixMode(GL_MODELVIEW);

+		//	glPushMatrix();

+		//	{

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

+

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

+		//		glLoadIdentity();

+

+		//		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);

+		//		glTranslatef(0.f, 0.f, -LLViewerCamera::getInstance()->getNear());

+		//		glScalef(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);

+		//	}

+		//	glPopMatrix();

+		//}

+

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

+		LLPipeline::updateRenderDeferred();

+		

+		stop_glerror();

+

+		if (to_texture)

+		{

+			gGL.setColorMask(true, true);

+					

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

+			{

+				gPipeline.mDeferredScreen.bindTarget();

+				glClearColor(0,0,0,0);

+				gPipeline.mDeferredScreen.clear();

+			}

+			else

+			{

+				gPipeline.mScreen.bindTarget();

+				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();

+		}

+

+		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);

+	glMatrixMode(GL_PROJECTION);

+	glPushMatrix();

+	glMatrixMode(GL_MODELVIEW);

+	glPushMatrix();

+		

+	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;

+		LLPipeline::sDisableShaders = TRUE;

+		

+		//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;

+		LLPipeline::sDisableShaders = FALSE;

+	}

+	glMatrixMode(GL_PROJECTION);

+	glPopMatrix();

+	glMatrixMode(GL_MODELVIEW);

+	glPopMatrix();

+	

+	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);

+		glh::matrix4f mat;

+		

+		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(), 0.f, (F32)gViewerWindow->getWorldViewWidthScaled(), 0.5f * scale_x * aspect_ratio, -0.5f * scale_x * aspect_ratio),

+					   clamp_rescale((F32)screen_region.getCenterY(), 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

+	glMatrixMode(GL_PROJECTION);

+	glLoadMatrixf(proj.m);

+	glh_set_current_projection(proj);

+	

+	glMatrixMode(GL_MODELVIEW);

+	glLoadMatrixf(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();

+	

+	glPushMatrix();

+	glLoadMatrixd(gGLLastModelView);

+	glh::matrix4f saved_view = glh_get_current_modelview();

+	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();

+	}

+

+	glh_set_current_modelview(saved_view);

+	glPopMatrix();

+

+	if (gDisplaySwapBuffers)

+	{

+		LLFastTimer t(FTM_SWAP);

+		gViewerWindow->mWindow->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

+	glPushMatrix();

+		glTranslatef( v.mV[VX], v.mV[VY], v.mV[VZ] );

+		renderCoordinateAxes();

+	glPopMatrix();

+}

+

+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.

+

+	// Coordinate axes

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

+	{

+		draw_axes();

+	}

+

+	stop_glerror();

+		

+	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)

+	{

+		glPushMatrix();

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

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

+		glScalef(LLUI::sGLScaleFactor.mV[0], LLUI::sGLScaleFactor.mV[1], 1.f);

+		glTranslatef((F32)half_width, (F32)half_height, 0.f);

+		F32 zoom = gAgentCamera.mHUDCurZoom;

+		glScalef(zoom,zoom,1.f);

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

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

+		glPopMatrix();

+		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()

+{

+	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();

+		glPushMatrix();

+		{

+			// 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();

+			glScalef(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);

+		}

+		glPopMatrix();

+	}

+	gGL.flush();

+}

+

+void display_cleanup()

+{

+	gDisconnectedImagep = NULL;

+}