libsound/EmbedSound.cpp

   1 // EmbedSound.cpp - embedded sound definition, for gnash
   2 //
   3 //   Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
   4 //   Free Software Foundation, Inc
   5 //
   6 // This program is free software; you can redistribute it and/or modify
   7 // it under the terms of the GNU General Public License as published by
   8 // the Free Software Foundation; either version 3 of the License, or
   9 // (at your option) any later version.
  10
  11 // This program is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 // GNU General Public License for more details.
  15 //
  16 // You should have received a copy of the GNU General Public License
  17 // along with this program; if not, write to the Free Software
  18 // Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  19 //
  20
  21 #include "EmbedSound.h"
  22
  23 #include <vector>
  24 #include <cstdint>
  25
  26 #include "EmbedSoundInst.h"
  27 #include "SoundInfo.h"
  28 #include "MediaHandler.h"
  29 #include "log.h"
  30 #include "GnashException.h"
  31
  32 namespace gnash {
  33 namespace sound {
  34
  35 EmbedSound::EmbedSound(std::unique_ptr<SimpleBuffer> data,
  36         media::SoundInfo info, int nVolume)
  37     :
  38     soundinfo(std::move(info)),
  39     volume(nVolume),
  40     _buf(data.release())
  41 {
  42     if (!_buf.get()) _buf.reset(new SimpleBuffer());
  43 }
  44
  45 void
  46 EmbedSound::clearInstances()
  47 {
  48     std::lock_guard<std::mutex> lock(_soundInstancesMutex);
  49     _soundInstances.clear();
  50 }
  51
  52 EmbedSound::Instances::iterator
  53 EmbedSound::eraseActiveSound(Instances::iterator i)
  54 {
  55     // Mutex intentionally NOT locked...
  56     return _soundInstances.erase(i);
  57 }
  58
  59 std::unique_ptr<EmbedSoundInst>
  60 EmbedSound::createInstance(media::MediaHandler& mh, unsigned int inPoint,
  61         unsigned int outPoint, const SoundEnvelopes* envelopes,
  62         int loopCount)
  63 {
  64     std::unique_ptr<EmbedSoundInst> ret(
  65         new EmbedSoundInst(*this, mh, inPoint, outPoint, envelopes, loopCount));
  66
  67     std::lock_guard<std::mutex> lock(_soundInstancesMutex);
  68
  69     // Push the sound onto the playing sounds container.
  70     _soundInstances.push_back(ret.get());
  71
  72     return ret;
  73 }
  74
  75 EmbedSound::~EmbedSound()
  76 {
  77     clearInstances();
  78 }
  79
  80 void
  81 EmbedSound::eraseActiveSound(EmbedSoundInst* inst)
  82 {
  83     std::lock_guard<std::mutex> lock(_soundInstancesMutex);
  84
  85     Instances::iterator it = std::find( _soundInstances.begin(),
  86             _soundInstances.end(), inst);
  87
  88     if (it == _soundInstances.end()) {
  89         log_error("EmbedSound::eraseActiveSound: instance %p not found!", inst);
  90         return;
  91     }
  92
  93     eraseActiveSound(it);
  94 }
  95
  96 bool
  97 EmbedSound::isPlaying() const
  98 {
  99     std::lock_guard<std::mutex> lock(_soundInstancesMutex);
 100     return !_soundInstances.empty();
 101 }
 102
 103 size_t
 104 EmbedSound::numPlayingInstances() const
 105 {
 106     std::lock_guard<std::mutex> lock(_soundInstancesMutex);
 107     return _soundInstances.size();
 108 }
 109
 110 EmbedSoundInst*
 111 EmbedSound::firstPlayingInstance() const
 112 {
 113     std::lock_guard<std::mutex> lock(_soundInstancesMutex);
 114     return _soundInstances.front();
 115 }
 116
 117 void
 118 EmbedSound::getPlayingInstances(std::vector<InputStream*>& to) const
 119 {
 120     std::lock_guard<std::mutex> lock(_soundInstancesMutex);
 121     for (InputStream* stream : _soundInstances)
 122     {
 123         to.push_back(stream);
 124     }
 125 }
 126
 127 } // gnash.sound namespace
 128 } // namespace gnash