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path: root/indra/newview/lltextureinfo.cpp
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/** 
 * @file lltextureinfo.cpp
 * @brief Object which handles local texture info
 *
 * $LicenseInfo:firstyear=2000&license=viewerlgpl$
 * 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 "llagent.h"
#include "llmeshrepository.h"
#include "llsdutil.h"
#include "lltextureinfo.h"
#include "lltexturecache.h"
#include "lltexturefetch.h"
#include "lltexturestats.h"
#include "lltrace.h"
#include "llviewercontrol.h"
#include "llviewerregion.h"
#include "llviewerstats.h"
#include "llvocache.h"
#include "llworld.h"

static LLTrace::CountStatHandle<S32> sTextureDownloadsStarted("texture_downloads_started", "number of texture downloads initiated");
static LLTrace::CountStatHandle<S32> sTextureDownloadsCompleted("texture_downloads_completed", "number of texture downloads completed");
static LLTrace::CountStatHandle<S32Bytes > sTextureDataDownloaded("texture_data_downloaded", "amount of texture data downloaded");
static LLTrace::CountStatHandle<U32Milliseconds > sTexureDownloadTime("texture_download_time", "amount of time spent fetching textures");

LLTextureInfo::LLTextureInfo(bool postponeStartRecoreder) :
	mLoggingEnabled(false),
	mTextureDownloadProtocol("NONE")
{
	if (!postponeStartRecoreder)
	{
		startRecording();
	}
}

void LLTextureInfo::setLogging(bool log_info)
{
	mLoggingEnabled = log_info;
}

LLTextureInfo::~LLTextureInfo()
{
	std::map<LLUUID, LLTextureInfoDetails *>::iterator iterator;
	for (iterator = mTextures.begin(); iterator != mTextures.end(); iterator++)
	{
		LLTextureInfoDetails *info = (*iterator).second;
		delete info;
	}

	mTextures.clear();
}

void LLTextureInfo::addRequest(const LLUUID& id)
{
	LLTextureInfoDetails *info = new LLTextureInfoDetails();
	mTextures[id] = info;
}

U32 LLTextureInfo::getTextureInfoMapSize()
{
	return mTextures.size();
}

bool LLTextureInfo::has(const LLUUID& id)
{
	return mTextures.end() != mTextures.find(id);
}

void LLTextureInfo::setRequestStartTime(const LLUUID& id, U64 startTime)
{
	if (!has(id))
	{
		addRequest(id);
	}
	mTextures[id]->mStartTime = (U64Microseconds)startTime;
	add(sTextureDownloadsStarted, 1);
}

void LLTextureInfo::setRequestSize(const LLUUID& id, U32 size)
{
	if (!has(id))
	{
		addRequest(id);
	}
	mTextures[id]->mSize = (U32Bytes)size;
}

void LLTextureInfo::setRequestOffset(const LLUUID& id, U32 offset)
{
	if (!has(id))
	{
		addRequest(id);
	}
	mTextures[id]->mOffset = offset;
}

void LLTextureInfo::setRequestType(const LLUUID& id, LLTextureInfoDetails::LLRequestType type)
{
	if (!has(id))
	{
		addRequest(id);
	}
	mTextures[id]->mType = type;
}

void LLTextureInfo::setRequestCompleteTimeAndLog(const LLUUID& id, U64Microseconds completeTime)
{
	if (!has(id))
	{
		addRequest(id);
	}
	
	LLTextureInfoDetails& details = *mTextures[id];

	details.mCompleteTime = completeTime;

	std::string protocol = "NONE";
	switch(details.mType)
	{
	case LLTextureInfoDetails::REQUEST_TYPE_HTTP:
		protocol = "HTTP";
		break;

	case LLTextureInfoDetails::REQUEST_TYPE_UDP:
		protocol = "UDP";
		break;

	case LLTextureInfoDetails::REQUEST_TYPE_NONE:
	default:
		break;
	}

	if (mLoggingEnabled)
	{
		static LLCachedControl<bool> log_to_viewer_log(gSavedSettings, "LogTextureDownloadsToViewerLog", false);
		static LLCachedControl<bool> log_to_simulator(gSavedSettings, "LogTextureDownloadsToSimulator", false);
		static LLCachedControl<U32> texture_log_threshold(gSavedSettings, "TextureLoggingThreshold", 1);

		if (log_to_viewer_log)
		{
			LL_INFOS() << "texture="   << id 
				    << " start="    << details.mStartTime 
				    << " end="      << details.mCompleteTime
				    << " size="     << details.mSize
				    << " offset="   << details.mOffset
				    << " length="   << U32Milliseconds(details.mCompleteTime - details.mStartTime)
				    << " protocol=" << protocol
				    << LL_ENDL;
		}

		if(log_to_simulator)
		{
			add(sTextureDataDownloaded, details.mSize);
			add(sTexureDownloadTime, details.mCompleteTime - details.mStartTime);
			add(sTextureDownloadsCompleted, 1);
			mTextureDownloadProtocol = protocol;
			if (mRecording.getSum(sTextureDataDownloaded) >= U32Bytes(texture_log_threshold))
			{
				LLSD texture_data;
				std::stringstream startTime;
				startTime << mCurrentStatsBundleStartTime;
				texture_data["start_time"] = startTime.str();
				std::stringstream endTime;
				endTime << completeTime;
				texture_data["end_time"] = endTime.str();
				texture_data["averages"] = getAverages();

				// Texture cache
				LLSD texture_cache;
				U32 cache_read = 0, cache_write = 0, res_wait = 0;
				F64 cache_hit_rate = 0;
				LLAppViewer::getTextureFetch()->getStateStats(&cache_read, &cache_write, &res_wait);
				if (cache_read > 0 || cache_write > 0)
				{
					cache_hit_rate = cache_read / (cache_read + cache_write);
				}
				texture_cache["cache_read"] = LLSD::Integer(cache_read);
				texture_cache["cache_write"] = LLSD::Integer(cache_write);
				texture_cache["hit_rate"] = LLSD::Real(cache_hit_rate);
				texture_cache["entries"] = LLSD::Integer(LLAppViewer::getTextureCache()->getEntries());
				texture_cache["space_max"] = ll_sd_from_U64((U64)LLAppViewer::getTextureCache()->getMaxUsage().value()); // bytes
				texture_cache["space_used"] = ll_sd_from_U64((U64)LLAppViewer::getTextureCache()->getUsage().value()); // bytes
				texture_data["texture_cache"] = texture_cache;

				// VO and mesh cache
				LLSD object_cache;
				object_cache["vo_entries_max"] = LLSD::Integer(LLVOCache::getInstance()->getCacheEntriesMax());
				object_cache["vo_entries_curent"] = LLSD::Integer(LLVOCache::getInstance()->getCacheEntries());
				object_cache["vo_active_entries"] = LLSD::Integer(LLWorld::getInstance()->getNumOfActiveCachedObjects());
				U64 region_hit_count = gAgent.getRegion() != NULL ? gAgent.getRegion()->getRegionCacheHitCount() : 0;
				U64 region_miss_count = gAgent.getRegion() != NULL ? gAgent.getRegion()->getRegionCacheMissCount() : 0;
				F64 region_vocache_hit_rate = 0;
				if (region_hit_count > 0 || region_miss_count > 0)
				{
					region_vocache_hit_rate = region_hit_count / (region_hit_count + region_miss_count);
				}
				object_cache["vo_region_hitcount"] = ll_sd_from_U64(region_hit_count);
				object_cache["vo_region_misscount"] = ll_sd_from_U64(region_miss_count);
				object_cache["vo_region_hitrate"] = LLSD::Real(region_vocache_hit_rate);
				object_cache["mesh_reads"] = LLSD::Integer(LLMeshRepository::sCacheReads);
				object_cache["mesh_writes"] = LLSD::Integer(LLMeshRepository::sCacheWrites);
				texture_data["object_cache"] = object_cache;

				send_texture_stats_to_sim(texture_data);
				resetTextureStatistics();
			}
		}
	}

	mTextures.erase(id);
}

LLSD LLTextureInfo::getAverages()
{
	LLSD averagedTextureData;
	S32 averageDownloadRate = 0;
	unsigned int download_time = mRecording.getSum(sTexureDownloadTime).valueInUnits<LLUnits::Seconds>();
	
	if (0 != download_time)
	{
		averageDownloadRate = mRecording.getSum(sTextureDataDownloaded).valueInUnits<LLUnits::Bits>() / download_time;
	}

	averagedTextureData["bits_per_second"]             = averageDownloadRate;
	averagedTextureData["bytes_downloaded"]            = mRecording.getSum(sTextureDataDownloaded).valueInUnits<LLUnits::Bytes>();
	averagedTextureData["texture_downloads_started"]   = mRecording.getSum(sTextureDownloadsStarted);
	averagedTextureData["texture_downloads_completed"] = mRecording.getSum(sTextureDownloadsCompleted);
	averagedTextureData["transport"]                   = mTextureDownloadProtocol;

	return averagedTextureData;
}

void LLTextureInfo::startRecording()
{
	mRecording.start();
}

void LLTextureInfo::stopRecording()
{
	mRecording.stop();
}

void LLTextureInfo::resetTextureStatistics()
{
	mRecording.restart();
	mTextureDownloadProtocol = "NONE";
	mCurrentStatsBundleStartTime = LLTimer::getTotalTime();
}

U32Microseconds LLTextureInfo::getRequestStartTime(const LLUUID& id)
{
	if (!has(id))
	{
		return U32Microseconds(0);
	}
	else
	{
		std::map<LLUUID, LLTextureInfoDetails *>::iterator iterator = mTextures.find(id);
		return (*iterator).second->mStartTime;
	}
}

U32Bytes LLTextureInfo::getRequestSize(const LLUUID& id)
{
	if (!has(id))
	{
		return U32Bytes(0);
	}
	else
	{
		std::map<LLUUID, LLTextureInfoDetails *>::iterator iterator = mTextures.find(id);
		return (*iterator).second->mSize;
	}
}

U32 LLTextureInfo::getRequestOffset(const LLUUID& id)
{
	if (!has(id))
	{
		return 0;
	}
	else
	{
		std::map<LLUUID, LLTextureInfoDetails *>::iterator iterator = mTextures.find(id);
		return (*iterator).second->mOffset;
	}
}

LLTextureInfoDetails::LLRequestType LLTextureInfo::getRequestType(const LLUUID& id)
{
	if (!has(id))
	{
		return LLTextureInfoDetails::REQUEST_TYPE_NONE;
	}
	else
	{
		std::map<LLUUID, LLTextureInfoDetails *>::iterator iterator = mTextures.find(id);
		return (*iterator).second->mType;
	}
}

U32Microseconds LLTextureInfo::getRequestCompleteTime(const LLUUID& id)
{
	if (!has(id))
	{
		return U32Microseconds(0);
	}
	else
	{
		std::map<LLUUID, LLTextureInfoDetails *>::iterator iterator = mTextures.find(id);
		return (*iterator).second->mCompleteTime;
	}
}