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Use a sorted list for unused buffers

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Helps ensure the buffers being unloaded due to cache limits are not likely to
be needed anytime soon.
This commit is contained in:
Chris Robinson 2015-11-24 21:40:15 -08:00
parent 669b7a2295
commit caae305ddd
2 changed files with 24 additions and 11 deletions
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29
apps/openmw/mwsound/soundmanagerimp.cpp
View file

@ -223,16 +223,15 @@ namespace MWSound
std::cerr<< "No unused sound buffers to free, using "<<mBufferCacheSize<<" bytes!" <<std::endl;
break;
}
SoundSet::iterator iter = mUnusedBuffers.begin();
Sound_Buffer *unused = &mSoundBuffers[*iter];
Sound_Buffer *unused = &mSoundBuffers[mUnusedBuffers.back()];
mBufferCacheSize -= mOutput->getSoundDataSize(unused->mHandle);
mOutput->unloadSound(unused->mHandle);
unused->mHandle = 0;
mUnusedBuffers.erase(iter);
mUnusedBuffers.pop_back();
}
mUnusedBuffers.insert(sfxid);
mUnusedBuffers.push_front(sfxid);
}
return sfx;
@ -520,7 +519,11 @@ namespace MWSound
volume * sfx->mVolume, basevol, pitch, mode|type, offset
);
if(sfx->mReferences++ == 0)
mUnusedBuffers.erase(sfxid);
{
SoundList::iterator iter = std::find(mUnusedBuffers.begin(), mUnusedBuffers.end(), sfxid);
if(iter != mUnusedBuffers.end())
mUnusedBuffers.erase(iter);
}
mActiveSounds[MWWorld::Ptr()].push_back(std::make_pair(sound, sfxid));
}
catch(std::exception&)
@ -552,7 +555,11 @@ namespace MWSound
objpos, volume * sfx->mVolume, basevol, pitch, sfx->mMinDist, sfx->mMaxDist, mode|type, offset
);
if(sfx->mReferences++ == 0)
mUnusedBuffers.erase(sfxid);
{
SoundList::iterator iter = std::find(mUnusedBuffers.begin(), mUnusedBuffers.end(), sfxid);
if(iter != mUnusedBuffers.end())
mUnusedBuffers.erase(iter);
}
if((mode&Play_NoTrack))
mActiveSounds[MWWorld::Ptr()].push_back(std::make_pair(sound, sfxid));
else
@ -582,7 +589,11 @@ namespace MWSound
initialPos, volume * sfx->mVolume, basevol, pitch, sfx->mMinDist, sfx->mMaxDist, mode|type, offset
);
if(sfx->mReferences++ == 0)
mUnusedBuffers.erase(sfxid);
{
SoundList::iterator iter = std::find(mUnusedBuffers.begin(), mUnusedBuffers.end(), sfxid);
if(iter != mUnusedBuffers.end())
mUnusedBuffers.erase(iter);
}
mActiveSounds[MWWorld::Ptr()].push_back(std::make_pair(sound, sfxid));
}
catch(std::exception &)
@ -829,7 +840,7 @@ namespace MWSound
{
Sound_Buffer *sfx = &mSoundBuffers[sndidx->second];
if(sfx->mReferences-- == 1)
mUnusedBuffers.insert(sndidx->second);
mUnusedBuffers.push_front(sndidx->second);
sndidx = snditer->second.erase(sndidx);
}
else
@ -1042,7 +1053,7 @@ namespace MWSound
sndidx->first->stop();
Sound_Buffer *sfx = &mSoundBuffers[sndidx->second];
if(sfx->mReferences-- == 1)
mUnusedBuffers.insert(sndidx->second);
mUnusedBuffers.push_front(sndidx->second);
}
}
mActiveSounds.clear();

6
apps/openmw/mwsound/soundmanagerimp.hpp
View file

@ -3,6 +3,7 @@
#include <string>
#include <utility>
#include <deque>
#include <map>
#include <boost/shared_ptr.hpp>
@ -62,8 +63,9 @@ namespace MWSound
typedef std::map<std::string,Sound_Loudness> NameLoudnessMap;
NameLoudnessMap mVoiceLipBuffers;
typedef std::set<size_t> SoundSet;
SoundSet mUnusedBuffers;
// NOTE: unused buffers are stored in front-newest order.
typedef std::deque<size_t> SoundList;
SoundList mUnusedBuffers;
boost::shared_ptr<Sound> mMusic;
std::string mCurrentPlaylist;