C++ LLFrameTimer类代码示例

void LLPerfStats::updatePerFrameStats()
{
    (void) LLStatsConfigFile::instance().checkAndReload();
	static LLFrameTimer performance_stats_timer;
	if ( frameStatsIsRunning() )
	{
		if ( mReportPerformanceStatInterval == 0 )
		{	// Record info every frame
			if ( mSkipFirstFrameStats )
			{	// Skip the first time - was started this frame
				mSkipFirstFrameStats = FALSE;
			}
			else
			{
				dumpIntervalPerformanceStats();
			}
		}
		else
		{
			performance_stats_timer.setTimerExpirySec( getReportPerformanceInterval() );
			if (performance_stats_timer.checkExpirationAndReset( mReportPerformanceStatInterval ))
			{
				dumpIntervalPerformanceStats();
			}
		}
		
		if ( LLFrameTimer::getElapsedSeconds() > mReportPerformanceStatEnd )
		{	// Reached end of time, clear it to stop reporting
			setReportPerformanceDuration(0.f);			// Don't set mReportPerformanceStatEnd directly	
            llinfos << "Recording performance stats completed" << llendl;
		}
	}
}

	void frametimer_object_t::test<3>()
	{
		clock_t t1 = clock();
		ms_sleep(200);
		clock_t t2 = clock();
		clock_t elapsed = t2 - t1 + 1;
		std::cout << "Note: using clock(), ms_sleep() actually took " << (long)elapsed << "ms" << std::endl;

		F64 seconds_since_epoch = LLFrameTimer::getTotalSeconds();
		seconds_since_epoch += 2.0;
		LLFrameTimer timer;
		timer.setExpiryAt(seconds_since_epoch);
		/*
		 * Note that the ms_sleep(200) below is only guaranteed to return
		 * in 200ms _or_more_, so it should be true that by the 10th
		 * iteration we've gotten to the 2 seconds requested above
		 * and the timer should expire, but it can expire in fewer iterations
		 * if one or more of the ms_sleep calls takes longer.
		 * (as it did when we moved to Mac OS X 10.10)
		 */
		int iterations_until_expiration = 0;
		while ( !timer.hasExpired() )
		{
			ms_sleep(200);
			LLFrameTimer::updateFrameTime();
			iterations_until_expiration++;
		}
		ensure("timer took too long to expire", iterations_until_expiration <= 10);
	}

	void frametimer_object_t::test<1>()
	{
		F64 seconds_since_epoch = LLFrameTimer::getTotalSeconds();
		LLFrameTimer timer;
		timer.setExpiryAt(seconds_since_epoch);
		F64 expires_at = timer.expiresAt();
		ensure_distance(
			"set expiry matches get expiry",
			expires_at,
			seconds_since_epoch,
			0.001);
	}

//static 
void LLVOCacheEntry::updateDebugSettings()
{
	static LLFrameTimer timer;
	if(timer.getElapsedTimeF32() < 1.0f) //update frequency once per second.
	{
		return;
	}
	timer.reset();

	//the number of frames invisible objects stay in memory
	static LLCachedControl<U32> inv_obj_time(gSavedSettings,"NonvisibleObjectsInMemoryTime");
	sMinFrameRange = inv_obj_time - 1; //make 0 to be the maximum 

	//min radius: all objects within this radius remain loaded in memory
	static LLCachedControl<F32> min_radius(gSavedSettings,"SceneLoadMinRadius");
	sNearRadius = llmin((F32)min_radius, gAgentCamera.mDrawDistance); //can not exceed the draw distance
	sNearRadius = llmax(sNearRadius, 1.f); //minimum value is 1.0m

	//objects within the view frustum whose visible area is greater than this threshold will be loaded
	static LLCachedControl<F32> front_pixel_threshold(gSavedSettings,"SceneLoadFrontPixelThreshold");
	sFrontPixelThreshold = front_pixel_threshold;

	//objects out of the view frustum whose visible area is greater than this threshold will remain loaded
	static LLCachedControl<F32> rear_pixel_threshold(gSavedSettings,"SceneLoadRearPixelThreshold");
	sRearPixelThreshold = rear_pixel_threshold;
	sRearPixelThreshold = llmax(sRearPixelThreshold, sFrontPixelThreshold); //can not be smaller than sFrontPixelThreshold.

	// a percentage of draw distance beyond which all objects outside of view frustum will be unloaded, regardless of pixel threshold
	static LLCachedControl<F32> rear_max_radius_frac(gSavedSettings,"SceneLoadRearMaxRadiusFraction");
	sRearFarRadius = llmax(rear_max_radius_frac * gAgentCamera.mDrawDistance / 100.f, 1.0f); //minimum value is 1.0m
	sRearFarRadius = llmax(sRearFarRadius, (F32)min_radius); //can not be less than "SceneLoadMinRadius".
	sRearFarRadius = llmin(sRearFarRadius, gAgentCamera.mDrawDistance); //can not be more than the draw distance.

	//make the above parameters adaptive to memory usage
	//starts to put restrictions from low_mem_bound_MB, apply tightest restrictions when hits high_mem_bound_MB
	static LLCachedControl<U32> low_mem_bound_MB(gSavedSettings,"SceneLoadLowMemoryBound");
	static LLCachedControl<U32> high_mem_bound_MB(gSavedSettings,"SceneLoadHighMemoryBound");
	
	LLMemory::updateMemoryInfo() ;
	U32 allocated_mem = LLMemory::getAllocatedMemKB().value();
	allocated_mem /= 1024; //convert to MB.
	if(allocated_mem < low_mem_bound_MB)
	{
		return; 
	}
	F32 adjust_factor = llmax(0.f, (F32)(high_mem_bound_MB - allocated_mem) / (high_mem_bound_MB - low_mem_bound_MB));

	sRearFarRadius = llmin(adjust_factor * sRearFarRadius, 96.f);  //[0.f, 96.f]
	sMinFrameRange = (U32)llclamp(adjust_factor * sMinFrameRange, 10.f, 64.f);  //[10, 64]
	sNearRadius    = llmax(adjust_factor * sNearRadius, 1.0f);
}

void LLFloaterAvatarPicker::draw()
{
	// sometimes it is hard to determine when Select/Ok button should be disabled (see LLAvatarActions::shareWithAvatars).
	// lets check this via mOkButtonValidateSignal callback periodically.
	static LLFrameTimer timer;
	if (timer.hasExpired())
	{
		timer.setTimerExpirySec(0.33f); // three times per second should be enough.

		// simulate list changes.
		onList();
		timer.start();
	}

	LLFloater::draw();

// [RLVa:KB] - Version: 1.23.4 | Checked: 2009-07-08 (RLVa-1.0.0e) | Added: RLVa-1.0.0e
	// TODO-RLVa: this code needs revisiting
	if (rlv_handler_t::isEnabled())
	{
		LLPanel* pNearMePanel = getChild<LLPanel>("NearMePanel");
		if ( (pNearMePanel) && (childGetVisibleTab("ResidentChooserTabs") == pNearMePanel) )
		{
			if (gRlvHandler.hasBehaviour(RLV_BHVR_SHOWNAMES))
			{
				if (mNearMeListComplete)
				{
					getChild<LLScrollListCtrl>("NearMe")->deleteAllItems();
					childSetEnabled("Select", false);
				}
				mNearMeListComplete = FALSE;
				pNearMePanel->setCtrlsEnabled(FALSE);
				return;
			}
			pNearMePanel->setCtrlsEnabled(TRUE);
		}
	}
// [/RLVa:KB]

	if (!mNearMeListComplete &&  getChild<LLTabContainer>("ResidentChooserTabs")->getCurrentPanel() == getChild<LLPanel>("NearMePanel"))
	{
		populateNearMe();
	}
}

void LLFloaterAvatarPicker::draw()
{
	// sometimes it is hard to determine when Select/Ok button should be disabled (see LLAvatarActions::shareWithAvatars).
	// lets check this via mOkButtonValidateSignal callback periodically.
	static LLFrameTimer timer;
	if (timer.hasExpired())
	{
		timer.setTimerExpirySec(0.33f); // three times per second should be enough.

		// simulate list changes.
		onList();
		timer.start();
	}

	LLFloater::draw();
	if (!mNearMeListComplete && getChild<LLTabContainer>("ResidentChooserTabs")->getCurrentPanel() == getChild<LLPanel>("NearMePanel"))
	{
		populateNearMe();
	}
}

	void frametimer_object_t::test<3>()
	{
		F64 seconds_since_epoch = LLFrameTimer::getTotalSeconds();
		seconds_since_epoch += 2.0;
		LLFrameTimer timer;
		timer.setExpiryAt(seconds_since_epoch);
		ensure("timer not expired on create", !timer.hasExpired());
		int ii;
		for(ii = 0; ii < 10; ++ii)
		{
			ms_sleep(150);
			LLFrameTimer::updateFrameTime();			
		}
		ensure("timer not expired after a bit", !timer.hasExpired());
		for(ii = 0; ii < 10; ++ii)
		{
			ms_sleep(100);
			LLFrameTimer::updateFrameTime();			
		}
		ensure("timer expired", timer.hasExpired());
	}

void LLDrawPoolTerrain::renderFull4TUShader()
{
	glEnableClientState(GL_VERTEX_ARRAY);
	glEnableClientState(GL_NORMAL_ARRAY);

	if (gPipeline.getLightingDetail() >= 2)
	{
		glEnableClientState(GL_COLOR_ARRAY);
	}
	
	glBlendFunc(GL_ONE_MINUS_SRC_ALPHA, GL_SRC_ALPHA);
	
	// Hack! Get the region that this draw pool is rendering from!
	LLViewerRegion *regionp = mDrawFace[0]->getDrawable()->getVObj()->getRegion();
	LLVLComposition *compp = regionp->getComposition();
	LLViewerImage *detail_texture0p = compp->mDetailTextures[0];
	LLViewerImage *detail_texture1p = compp->mDetailTextures[1];
	LLViewerImage *detail_texture2p = compp->mDetailTextures[2];
	LLViewerImage *detail_texture3p = compp->mDetailTextures[3];

	static F32 dp = 0.f;
	static LLFrameTimer timer;
	dp += timer.getElapsedTimeAndResetF32();

	LLVector3d region_origin_global = gAgent.getRegion()->getOriginGlobal();

	F32 offset_x = (F32)fmod(region_origin_global.mdV[VX], 1.0/(F64)sDetailScale)*sDetailScale;
	F32 offset_y = (F32)fmod(region_origin_global.mdV[VY], 1.0/(F64)sDetailScale)*sDetailScale;

	LLVector4 tp0, tp1;
	
	tp0.setVec(sDetailScale, 0.0f, 0.0f, offset_x);
	tp1.setVec(0.0f, sDetailScale, 0.0f, offset_y);

	//----------------------------------------------------------------------------
	// Pass 1/1

	//
	// Stage 0: detail texture 0
	//
	
	S32 detailTex0 = gTerrainProgram.enableTexture(LLShaderMgr::TERRAIN_DETAIL0);
	S32 detailTex1 = gTerrainProgram.enableTexture(LLShaderMgr::TERRAIN_DETAIL1);
	S32 rampTex = gTerrainProgram.enableTexture(LLShaderMgr::TERRAIN_ALPHARAMP);
	
	LLViewerImage::bindTexture(detail_texture0p,detailTex0);

	glClientActiveTextureARB(GL_TEXTURE0_ARB);
	glActiveTextureARB(GL_TEXTURE0_ARB);
	glDisableClientState(GL_TEXTURE_COORD_ARRAY);
	glEnable(GL_TEXTURE_GEN_S);
	glEnable(GL_TEXTURE_GEN_T);
	glTexGeni(GL_S, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR);
	glTexGeni(GL_T, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR);

	glTexGenfv(GL_S, GL_OBJECT_PLANE, tp0.mV);
	glTexGenfv(GL_T, GL_OBJECT_PLANE, tp1.mV);

	//
	// Stage 1: Generate alpha ramp for detail0/detail1 transition
	//
	LLViewerImage::bindTexture(m2DAlphaRampImagep,rampTex);

	glClientActiveTextureARB(GL_TEXTURE1_ARB);
	glEnableClientState(GL_TEXTURE_COORD_ARRAY);

	//
	// Stage 2: Interpolate detail1 with existing based on ramp
	//
	LLViewerImage::bindTexture(detail_texture1p,detailTex1);
	
	glClientActiveTextureARB(GL_TEXTURE2_ARB);
	glActiveTextureARB(GL_TEXTURE2_ARB);
	glDisableClientState(GL_TEXTURE_COORD_ARRAY);
	glEnable(GL_TEXTURE_GEN_S);
	glEnable(GL_TEXTURE_GEN_T);
	glTexGeni(GL_S, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR);
	glTexGeni(GL_T, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR);
	glTexGenfv(GL_S, GL_OBJECT_PLANE, tp0.mV);
	glTexGenfv(GL_T, GL_OBJECT_PLANE, tp1.mV);

	//
	// Stage 3: Modulate with primary color for lighting
	//
	//LLViewerImage::bindTexture(detail_texture1p,3); // bind any texture
	//glEnable(GL_TEXTURE_2D); // Texture unit 3
	glClientActiveTextureARB(GL_TEXTURE3_ARB);
	glActiveTextureARB(GL_TEXTURE3_ARB);
	// GL_BLEND disabled by default
	drawLoop();

	//----------------------------------------------------------------------------
	// Second pass

	//
	// Stage 0: Write detail3 into base
	//
	LLViewerImage::bindTexture(detail_texture2p,detailTex0);
	
	glClientActiveTextureARB(GL_TEXTURE0_ARB);
//.........这里部分代码省略.........

void LLNetMap::draw()
{
 	static LLFrameTimer map_timer;

	if (mObjectImagep.isNull())
	{
		createObjectImage();
	}

	if (gSavedSettings.getS32( "MiniMapCenter") != MAP_CENTER_NONE)
	{
		mCurPanX = lerp(mCurPanX, mTargetPanX, LLCriticalDamp::getInterpolant(0.1f));
		mCurPanY = lerp(mCurPanY, mTargetPanY, LLCriticalDamp::getInterpolant(0.1f));
	}

	F32 rotation = 0;

	// Prepare a scissor region
	{
		LLGLEnable scissor(GL_SCISSOR_TEST);

		{
			gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);
			LLLocalClipRect clip(getLocalRect());

			gGL.matrixMode(LLRender::MM_MODELVIEW);

			// Draw background rectangle
			if(isBackgroundVisible())
			{
				LLColor4 background_color = isBackgroundOpaque() ? getBackgroundColor().mV : getTransparentColor().mV;
				gGL.color4fv( background_color.mV );
				gl_rect_2d(0, getRect().getHeight(), getRect().getWidth(), 0);
			}
		}

		// region 0,0 is in the middle
		S32 center_sw_left = getRect().getWidth() / 2 + llfloor(mCurPanX);
		S32 center_sw_bottom = getRect().getHeight() / 2 + llfloor(mCurPanY);

		gGL.pushMatrix();

		gGL.translatef( (F32) center_sw_left, (F32) center_sw_bottom, 0.f);
		
		static LLCachedControl<bool> rotate_map("MiniMapRotate", true);
		if (rotate_map)
		{
			// rotate subsequent draws to agent rotation
			rotation = atan2( LLViewerCamera::getInstance()->getAtAxis().mV[VX], LLViewerCamera::getInstance()->getAtAxis().mV[VY] );
			gGL.rotatef( rotation * RAD_TO_DEG, 0.f, 0.f, 1.f);
		}

		// figure out where agent is
		LLColor4 this_region_color = gColors.getColor( "NetMapThisRegion" );
		LLColor4 live_region_color = gColors.getColor( "NetMapLiveRegion" );
		LLColor4 dead_region_color = gColors.getColor( "NetMapDeadRegion" );

		for (LLWorld::region_list_t::const_iterator iter = LLWorld::getInstance()->getRegionList().begin();
			 iter != LLWorld::getInstance()->getRegionList().end(); ++iter)
		{
			LLViewerRegion* regionp = *iter;
			S32 region_width = llround(regionp->getWidth());
			// Find x and y position relative to camera's center.
			LLVector3 origin_agent = regionp->getOriginAgent();
			LLVector3 rel_region_pos = origin_agent - gAgentCamera.getCameraPositionAgent();
			F32 relative_x = (rel_region_pos.mV[0] / region_width) * mScale;
			F32 relative_y = (rel_region_pos.mV[1] / region_width) * mScale;

			// background region rectangle
			F32 bottom =	relative_y;
			F32 left =		relative_x;
			F32 top =		bottom + mScale ;
			F32 right =		left + mScale ;

			gGL.color4fv(regionp == gAgent.getRegion() ? this_region_color.mV : live_region_color.mV);
			if (!regionp->isAlive())
			{
				gGL.color4fv(dead_region_color.mV);
			}


			// Draw using texture.
			gGL.getTexUnit(0)->bind(regionp->getLand().getSTexture());
			gGL.begin(LLRender::QUADS);
				gGL.texCoord2f(0.f, 1.f);
				gGL.vertex2f(left, top);
				gGL.texCoord2f(0.f, 0.f);
				gGL.vertex2f(left, bottom);
				gGL.texCoord2f(1.f, 0.f);
				gGL.vertex2f(right, bottom);
				gGL.texCoord2f(1.f, 1.f);
				gGL.vertex2f(right, top);
			gGL.end();

			// Draw water
			gGL.setAlphaRejectSettings(LLRender::CF_GREATER, ABOVE_WATERLINE_ALPHA / 255.f);
			{
				if (regionp->getLand().getWaterTexture())
				{
					gGL.getTexUnit(0)->bind(regionp->getLand().getWaterTexture());
//.........这里部分代码省略.........

void LLNetMap::draw()
{
 	static LLFrameTimer map_timer;

	if (mObjectImagep.isNull())
	{
		createObjectImage();
	}

	LLCachedControl<S32> minimap_center(gSavedSettings, "MiniMapCenter");
	if (minimap_center != MAP_CENTER_NONE)
	{
		mCurPanX = lerp(mCurPanX, mTargetPanX, LLCriticalDamp::getInterpolant(0.1f));
		mCurPanY = lerp(mCurPanY, mTargetPanY, LLCriticalDamp::getInterpolant(0.1f));
	}

	LLViewerCamera* camera = LLViewerCamera::getInstance();

	F32 rotation = 0;

	// Prepare a scissor region
	{
		LLGLEnable scissor(GL_SCISSOR_TEST);

		{
			gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);
			LLLocalClipRect clip(getLocalRect());

			glMatrixMode(GL_MODELVIEW);

			// Draw background rectangle
			if(isBackgroundVisible())
			{
				gGL.color4fv(isBackgroundOpaque() ? getBackgroundColor().mV : getTransparentColor().mV);
				gl_rect_2d(0, getRect().getHeight(), getRect().getWidth(), 0);
			}
		}

		// region 0,0 is in the middle
		S32 center_sw_left = getRect().getWidth() / 2 + llfloor(mCurPanX);
		S32 center_sw_bottom = getRect().getHeight() / 2 + llfloor(mCurPanY);

		gGL.pushMatrix();

		gGL.translatef( (F32) center_sw_left, (F32) center_sw_bottom, 0.f);

		BOOL rotate_map = gSavedSettings.getBOOL( "MiniMapRotate" );
		if( rotate_map )
		{
			// rotate subsequent draws to agent rotation
			rotation = atan2( camera->getAtAxis().mV[VX], LLViewerCamera::getInstance()->getAtAxis().mV[VY] );
			glRotatef( rotation * RAD_TO_DEG, 0.f, 0.f, 1.f);
		}

		// figure out where agent is
		S32 region_width = llround(LLWorld::getInstance()->getRegionWidthInMeters());
		LLColor4 this_region_color = gColors.getColor( "NetMapThisRegion" );
		LLColor4 live_region_color = gColors.getColor( "NetMapLiveRegion" );
		LLColor4 dead_region_color = gColors.getColor( "NetMapDeadRegion" );

		for (LLWorld::region_list_t::const_iterator iter = LLWorld::getInstance()->getRegionList().begin();
			 iter != LLWorld::getInstance()->getRegionList().end(); ++iter)
		{
			LLViewerRegion* regionp = *iter;
			// Find x and y position relative to camera's center.
			LLVector3 origin_agent = regionp->getOriginAgent();
			LLVector3 rel_region_pos = origin_agent - gAgent.getCameraPositionAgent();
			F32 relative_x = (rel_region_pos.mV[0] / region_width) * mScale;
			F32 relative_y = (rel_region_pos.mV[1] / region_width) * mScale;

			// background region rectangle
			F32 bottom =	relative_y;
			F32 left =		relative_x;
			F32 top =		bottom + mScale ;
			F32 right =		left + mScale ;

			gGL.color4fv(regionp == gAgent.getRegion() ? this_region_color.mV : live_region_color.mV);
			if (!regionp->isAlive())
			{
				gGL.color4fv(dead_region_color.mV);
			}


			// Draw using texture.
			gGL.getTexUnit(0)->bind(regionp->getLand().getSTexture());
			gGL.begin(LLRender::QUADS);
				gGL.texCoord2f(0.f, 1.f);
				gGL.vertex2f(left, top);
				gGL.texCoord2f(0.f, 0.f);
				gGL.vertex2f(left, bottom);
				gGL.texCoord2f(1.f, 0.f);
				gGL.vertex2f(right, bottom);
				gGL.texCoord2f(1.f, 1.f);
				gGL.vertex2f(right, top);
			gGL.end();

			// Draw water
			gGL.setAlphaRejectSettings(LLRender::CF_GREATER, ABOVE_WATERLINE_ALPHA / 255.f);
			{
				if (regionp->getLand().getWaterTexture())
//.........这里部分代码省略.........

void update_statistics(U32 frame_count)
{
	gTotalWorldBytes += gVLManager.getTotalBytes();
	gTotalObjectBytes += gObjectBits / 8;

	// make sure we have a valid time delta for this frame
	if (gFrameIntervalSeconds > 0.f)
	{
		if (gAgent.getCameraMode() == CAMERA_MODE_MOUSELOOK)
		{
			LLViewerStats::getInstance()->incStat(LLViewerStats::ST_MOUSELOOK_SECONDS, gFrameIntervalSeconds);
		}
		else if (gAgent.getCameraMode() == CAMERA_MODE_CUSTOMIZE_AVATAR)
		{
			LLViewerStats::getInstance()->incStat(LLViewerStats::ST_AVATAR_EDIT_SECONDS, gFrameIntervalSeconds);
		}
		else if (gFloaterTools && gFloaterTools->getVisible())
		{
			LLViewerStats::getInstance()->incStat(LLViewerStats::ST_TOOLBOX_SECONDS, gFrameIntervalSeconds);
		}
	}
	LLViewerStats::getInstance()->setStat(LLViewerStats::ST_ENABLE_VBO, (F64)gSavedSettings.getBOOL("RenderVBOEnable"));
	LLViewerStats::getInstance()->setStat(LLViewerStats::ST_LIGHTING_DETAIL, (F64)gSavedSettings.getS32("RenderLightingDetail"));
	LLViewerStats::getInstance()->setStat(LLViewerStats::ST_DRAW_DIST, (F64)gSavedSettings.getF32("RenderFarClip"));
	LLViewerStats::getInstance()->setStat(LLViewerStats::ST_CHAT_BUBBLES, (F64)gSavedSettings.getBOOL("UseChatBubbles"));
#if 0 // 1.9.2
	LLViewerStats::getInstance()->setStat(LLViewerStats::ST_SHADER_OBJECTS, (F64)gSavedSettings.getS32("VertexShaderLevelObject"));
	LLViewerStats::getInstance()->setStat(LLViewerStats::ST_SHADER_AVATAR, (F64)gSavedSettings.getBOOL("VertexShaderLevelAvatar"));
	LLViewerStats::getInstance()->setStat(LLViewerStats::ST_SHADER_ENVIRONMENT, (F64)gSavedSettings.getBOOL("VertexShaderLevelEnvironment"));
#endif
	LLViewerStats::getInstance()->setStat(LLViewerStats::ST_FRAME_SECS, gDebugView->mFastTimerView->getTime(LLFastTimer::FTM_FRAME));
	F64 idle_secs = gDebugView->mFastTimerView->getTime(LLFastTimer::FTM_IDLE);
	F64 network_secs = gDebugView->mFastTimerView->getTime(LLFastTimer::FTM_NETWORK);
	LLViewerStats::getInstance()->setStat(LLViewerStats::ST_UPDATE_SECS, idle_secs - network_secs);
	LLViewerStats::getInstance()->setStat(LLViewerStats::ST_NETWORK_SECS, network_secs);
	LLViewerStats::getInstance()->setStat(LLViewerStats::ST_IMAGE_SECS, gDebugView->mFastTimerView->getTime(LLFastTimer::FTM_IMAGE_UPDATE));
	LLViewerStats::getInstance()->setStat(LLViewerStats::ST_REBUILD_SECS, gDebugView->mFastTimerView->getTime(LLFastTimer::FTM_STATESORT ));
	LLViewerStats::getInstance()->setStat(LLViewerStats::ST_RENDER_SECS, gDebugView->mFastTimerView->getTime(LLFastTimer::FTM_RENDER_GEOMETRY));
		
	LLCircuitData *cdp = gMessageSystem->mCircuitInfo.findCircuit(gAgent.getRegion()->getHost());
	if (cdp)
	{
		LLViewerStats::getInstance()->mSimPingStat.addValue(cdp->getPingDelay());
		gAvgSimPing = ((gAvgSimPing * (F32)gSimPingCount) + (F32)(cdp->getPingDelay())) / ((F32)gSimPingCount + 1);
		gSimPingCount++;
	}
	else
	{
		LLViewerStats::getInstance()->mSimPingStat.addValue(10000);
	}

	LLViewerStats::getInstance()->mFPSStat.addValue(1);
	F32 layer_bits = (F32)(gVLManager.getLandBits() + gVLManager.getWindBits() + gVLManager.getCloudBits());
	LLViewerStats::getInstance()->mLayersKBitStat.addValue(layer_bits/1024.f);
	LLViewerStats::getInstance()->mObjectKBitStat.addValue(gObjectBits/1024.f);
	LLViewerStats::getInstance()->mVFSPendingOperations.addValue(LLVFile::getVFSThread()->getPending());
	LLViewerStats::getInstance()->mAssetKBitStat.addValue(gTransferManager.getTransferBitsIn(LLTCT_ASSET)/1024.f);
	gTransferManager.resetTransferBitsIn(LLTCT_ASSET);

	if (LLAppViewer::getTextureFetch()->getNumRequests() == 0)
	{
		gDebugTimers[0].pause();
	}
	else
	{
		gDebugTimers[0].unpause();
	}
	
	{
		static F32 visible_avatar_frames = 0.f;
		static F32 avg_visible_avatars = 0;
		F32 visible_avatars = (F32)LLVOAvatar::sNumVisibleAvatars;
		if (visible_avatars > 0.f)
		{
			visible_avatar_frames = 1.f;
			avg_visible_avatars = (avg_visible_avatars * (F32)(visible_avatar_frames - 1.f) + visible_avatars) / visible_avatar_frames;
		}
		LLViewerStats::getInstance()->setStat(LLViewerStats::ST_VISIBLE_AVATARS, (F64)avg_visible_avatars);
	}
	LLWorld::getInstance()->updateNetStats();
	LLWorld::getInstance()->requestCacheMisses();
	
	// Reset all of these values.
	gVLManager.resetBitCounts();
	gObjectBits = 0;
//	gDecodedBits = 0;

	// Only update texture stats ones per second so that they are less noisy
	{
		static const F32 texture_stats_freq = 1.f;
		static LLFrameTimer texture_stats_timer;
		if (texture_stats_timer.getElapsedTimeF32() >= texture_stats_freq)
		{
			LLViewerStats::getInstance()->mTextureKBitStat.addValue(LLViewerImageList::sTextureBits/1024.f);
			LLViewerStats::getInstance()->mTexturePacketsStat.addValue(LLViewerImageList::sTexturePackets);
			gTotalTextureBytes += LLViewerImageList::sTextureBits / 8;
			LLViewerImageList::sTextureBits = 0;
			LLViewerImageList::sTexturePackets = 0;
			texture_stats_timer.reset();
		}
//.........这里部分代码省略.........

void update_statistics()
{
    gTotalWorldBytes += gVLManager.getTotalBytes();
    gTotalObjectBytes += gObjectBits / 8;

    LLViewerStats& stats = LLViewerStats::instance();

    // make sure we have a valid time delta for this frame
    if (gFrameIntervalSeconds > 0.f)
    {
        if (gAgentCamera.getCameraMode() == CAMERA_MODE_MOUSELOOK)
        {
            LLViewerStats::getInstance()->incStat(LLViewerStats::ST_MOUSELOOK_SECONDS, gFrameIntervalSeconds);
        }
        else if (gAgentCamera.getCameraMode() == CAMERA_MODE_CUSTOMIZE_AVATAR)
        {
            LLViewerStats::getInstance()->incStat(LLViewerStats::ST_AVATAR_EDIT_SECONDS, gFrameIntervalSeconds);
        }
        else if (gFloaterTools && gFloaterTools->getVisible())
        {
            LLViewerStats::getInstance()->incStat(LLViewerStats::ST_TOOLBOX_SECONDS, gFrameIntervalSeconds);
        }
    }
    stats.setStat(LLViewerStats::ST_ENABLE_VBO, (F64)gSavedSettings.getBOOL("RenderVBOEnable"));
    stats.setStat(LLViewerStats::ST_LIGHTING_DETAIL, (F64)gPipeline.getLightingDetail());
    stats.setStat(LLViewerStats::ST_DRAW_DIST, (F64)gSavedSettings.getF32("RenderFarClip"));
    stats.setStat(LLViewerStats::ST_CHAT_BUBBLES, (F64)gSavedSettings.getBOOL("UseChatBubbles"));
#if 0 // 1.9.2
    LLViewerStats::getInstance()->setStat(LLViewerStats::ST_SHADER_OBJECTS, (F64)gSavedSettings.getS32("VertexShaderLevelObject"));
    LLViewerStats::getInstance()->setStat(LLViewerStats::ST_SHADER_AVATAR, (F64)gSavedSettings.getBOOL("VertexShaderLevelAvatar"));
    LLViewerStats::getInstance()->setStat(LLViewerStats::ST_SHADER_ENVIRONMENT, (F64)gSavedSettings.getBOOL("VertexShaderLevelEnvironment"));
#endif
    stats.setStat(LLViewerStats::ST_FRAME_SECS, gDebugView->mFastTimerView->getTime("Frame"));
    F64 idle_secs = gDebugView->mFastTimerView->getTime("Idle");
    F64 network_secs = gDebugView->mFastTimerView->getTime("Network");
    stats.setStat(LLViewerStats::ST_UPDATE_SECS, idle_secs - network_secs);
    stats.setStat(LLViewerStats::ST_NETWORK_SECS, network_secs);
    stats.setStat(LLViewerStats::ST_IMAGE_SECS, gDebugView->mFastTimerView->getTime("Update Images"));
    stats.setStat(LLViewerStats::ST_REBUILD_SECS, gDebugView->mFastTimerView->getTime("Sort Draw State"));
    stats.setStat(LLViewerStats::ST_RENDER_SECS, gDebugView->mFastTimerView->getTime("Geometry"));

    LLCircuitData *cdp = gMessageSystem->mCircuitInfo.findCircuit(gAgent.getRegion()->getHost());
    if (cdp)
    {
        stats.mSimPingStat.addValue(cdp->getPingDelay());
        gAvgSimPing = ((gAvgSimPing * (F32)gSimPingCount) + (F32)(cdp->getPingDelay())) / ((F32)gSimPingCount + 1);
        gSimPingCount++;
    }
    else
    {
        stats.mSimPingStat.addValue(10000);
    }

    stats.mFPSStat.addValue(1);
    F32 layer_bits = (F32)(gVLManager.getLandBits() + gVLManager.getWindBits() + gVLManager.getCloudBits());
    stats.mLayersKBitStat.addValue(layer_bits/1024.f);
    stats.mObjectKBitStat.addValue(gObjectBits/1024.f);
    stats.mVFSPendingOperations.addValue(LLVFile::getVFSThread()->getPending());
    stats.mAssetKBitStat.addValue(gTransferManager.getTransferBitsIn(LLTCT_ASSET)/1024.f);
    gTransferManager.resetTransferBitsIn(LLTCT_ASSET);

    if (LLAppViewer::getTextureFetch()->getNumRequests() == 0)
    {
        gTextureTimer.pause();
    }
    else
    {
        gTextureTimer.unpause();
    }

    {
        static F32 visible_avatar_frames = 0.f;
        static F32 avg_visible_avatars = 0;
        F32 visible_avatars = (F32)LLVOAvatar::sNumVisibleAvatars;
        if (visible_avatars > 0.f)
        {
            visible_avatar_frames = 1.f;
            avg_visible_avatars = (avg_visible_avatars * (F32)(visible_avatar_frames - 1.f) + visible_avatars) / visible_avatar_frames;
        }
        stats.setStat(LLViewerStats::ST_VISIBLE_AVATARS, (F64)avg_visible_avatars);
    }
    LLWorld::getInstance()->updateNetStats();
    LLWorld::getInstance()->requestCacheMisses();

    // Reset all of these values.
    gVLManager.resetBitCounts();
    gObjectBits = 0;
//	gDecodedBits = 0;

    // Only update texture stats periodically so that they are less noisy
    {
        static const F32 texture_stats_freq = 0.25f;
        static LLFrameTimer texture_stats_timer;
        if (texture_stats_timer.getElapsedTimeF32() >= texture_stats_freq)
        {
            stats.mHTTPTextureKBitStat.addValue(AICurlInterface::getHTTPBandwidth()/125.f);
            stats.mUDPTextureKBitStat.addValue(LLViewerTextureList::sTextureBits/1024.f);
            stats.mTexturePacketsStat.addValue(LLViewerTextureList::sTexturePackets);
            gTotalTextureBytes += LLViewerTextureList::sTextureBits / 8;
            LLViewerTextureList::sTextureBits = 0;
//.........这里部分代码省略.........

// Write some stats to llinfos
void display_stats()
{
	if (gNoRender || !gViewerWindow->mWindow->getVisible() || !gFocusMgr.getAppHasFocus())
	{
		// Do not keep FPS statistics while yielding cooperatively
		// (i;e. when not running as foreground window)
		gRecentFrameCount = 0;
		gRecentFPSTime.reset();
	}
	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 = getCurrentRSS();
		U32 memory = (U32)(gMemoryAllocated / (1024*1024));
		llinfos << llformat("MEMORY: %d MB", memory) << llendl;
		gRecentMemoryTime.reset();
	}
}

// Write some stats to llinfos
void display_stats()
{
	if (gNoRender || !gViewerWindow->getWindow()->getVisible() || !gFocusMgr.getAppHasFocus())
	{
		// Do not keep FPS statistics while yielding cooperatively
		// (i;e. when not running as foreground window)
		gRecentFrameCount = 0;
		gRecentFPSTime.reset();
	}
	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;
		llinfos << llformat("VBO: %d  glVBO: %d", LLVertexBuffer::sCount, LLVertexBuffer::sGLCount) << llendl;
#ifdef LL_OCTREE_STATS
		OctreeStats::getInstance()->dump();
#endif
		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;
		llinfos << "THREADS: "<< LLThread::getCount() << llendl;
		llinfos << "MALLOC: " << SGMemStat::getPrintableStat() <<llendl;
		LLMemory::logMemoryInfo(TRUE) ;
		gRecentMemoryTime.reset();
	}
}

LLColor4U lggBeamMaps::beamColorFromData(lggBeamsColors data)
{

	F32 r, g, b;
	LLColor4 output;
	LLColor4U toReturn;
	F32 timeinc =  timer.getElapsedTimeF32()*0.3f*((data.rotateSpeed+.01f)) * (360/(data.endHue-data.startHue));

	S32 diference = llround(data.endHue  - data.startHue);
	if(diference == 360 || diference == 720)
	{
		//full rainbow
		//liner one
		hslToRgb(fmod(timeinc,1.0f), 1.0f, 0.5f, r, g, b);

	}else
	{
		F32 variance = ((data.endHue/360.0f)-(data.startHue/360.0f))/2.0f;
		hslToRgb((data.startHue/360.0f) + variance + (sinf(timeinc)*(variance)), 1.0f, 0.5f, r, g, b);
	}
	output.set(r, g, b);

	toReturn.setVecScaleClamp(output);
	return toReturn;

}