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Add some comments for ALsource functions

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This commit is contained in:
Chris Robinson
2017-03-23 01:16:13 -07:00
parent 85042a74ee
commit 5404b2225a
1 changed files with 13 additions and 1 deletions
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OpenAL32/alSource.c
+13 -1
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@@ -139,13 +139,21 @@ static inline ALvoice *GetSourceVoice(const ALsource *source, const ALCcontext *
return NULL;
}
/**
* Returns if the last known state for the source was playing or paused. Does
* not sync with the mixer voice.
*/
static inline bool IsPlayingOrPaused(ALsource *source)
{
ALenum state = ATOMIC_LOAD(&source->state, almemory_order_acquire);
return state == AL_PLAYING || state == AL_PAUSED;
}
static ALenum GetSourceState(ALsource *source, ALvoice *voice)
/**
* Returns an updated source state using the matching voice's status (or lack
* thereof).
*/
static inline ALenum GetSourceState(ALsource *source, ALvoice *voice)
{
if(!voice)
{
@@ -158,6 +166,10 @@ static ALenum GetSourceState(ALsource *source, ALvoice *voice)
return ATOMIC_LOAD(&source->state, almemory_order_acquire);
}
/**
* Returns if the source should specify an update, given the context's
* deferring state and the source's last known state.
*/
static inline bool SourceShouldUpdate(ALsource *source, ALCcontext *context)
{
return !ATOMIC_LOAD(&context->DeferUpdates, almemory_order_acquire) &&