SoundChannel* SoundPool::allocateChannel_l(int priority)
{
List<SoundChannel*>::iterator iter;
SoundChannel* channel = NULL;
// allocate a channel
if (!mChannels.empty()) {
iter = mChannels.begin();
if (priority >= (*iter)->priority()) {
channel = *iter;
mChannels.erase(iter);
ALOGV("Allocated active channel");
}
}
// update priority and put it back in the list
if (channel) {
channel->setPriority(priority);
for (iter = mChannels.begin(); iter != mChannels.end(); ++iter) {
if (priority < (*iter)->priority()) {
break;
}
}
mChannels.insert(iter, channel);
}
return channel;
}
void SoundPool::setPriority(int channelID, int priority)
{
ALOGV("setPriority(%d, %d)", channelID, priority);
Mutex::Autolock lock(&mLock);
SoundChannel* channel = findChannel(channelID);
if (channel) {
channel->setPriority(priority);
}
}