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First stage of audio API update

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Look over changes and give feedback please.
This commit is contained in:
Joshua Reisenauer
2016-04-29 23:00:12 -07:00
parent f707c1ca46
commit 91f1f324c0
3 changed files with 92 additions and 4 deletions
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52
src/audio.c
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@ -97,9 +97,10 @@ typedef enum { INFO = 0, ERROR, WARNING, DEBUG, OTHER } TraceLogType;
//----------------------------------------------------------------------------------
// Global Variables Definition
//----------------------------------------------------------------------------------
static bool mixChannelsActive_g[4]; // What mix channels are currently active
static bool musicEnabled = false;
static Music currentMusic; // Current music loaded
// NOTE: Only one music file playing at a time
static Music currentMusic; // Current music loaded
// NOTE: Only one music file playing at a time
//----------------------------------------------------------------------------------
// Module specific Functions Declaration
@ -164,6 +165,53 @@ void CloseAudioDevice(void)
alcCloseDevice(device);
}
// True if call to InitAudioDevice() was successful and CloseAudioDevice() has not been called yet
bool AudioDeviceReady(void)
{
ALCcontext *context = alcGetCurrentContext();
if (context == NULL) return false;
else{
ALCdevice *device = alcGetContextsDevice(context);
if (device == NULL) return false;
else return true;
}
}
//----------------------------------------------------------------------------------
// Module Functions Definition - Custom audio output
//----------------------------------------------------------------------------------
// Audio contexts are for outputing custom audio waveforms, This will shut down any other sound sources currently playing
// The mix_t is what mix channel you want to operate on, mixA->mixD are the ones available. Each mix channel can only be used one at a time.
// exmple usage is InitAudioContext(48000, 16, mixA, stereo);
AudioContext* InitAudioContext(unsigned short sampleRate, unsigned char bitsPerSample, mix_t mixChannel, channel_t channels)
{
if(!AudioDeviceReady()) InitAudioDevice();
else StopMusicStream();
if(!mixChannelsActive_g[mixChannel]){
AudioContext *ac = malloc(sizeof(AudioContext));
ac->sampleRate = sampleRate;
ac->bitsPerSample = bitsPerSample;
ac->mixChannel = mixChannel;
ac->channels = channels;
mixChannelsActive_g[mixChannel] = true;
return ac;
}
return NULL;
}
// Frees buffer in audio context
void CloseAudioContext(AudioContext *ctx)
{
if(ctx){
mixChannelsActive_g[ctx->mixChannel] = false;
free(ctx);
}
}
//----------------------------------------------------------------------------------
// Module Functions Definition - Sounds loading and playing (.WAV)
//----------------------------------------------------------------------------------