diff --git a/src/audio.c b/src/audio.c index 6d8f876c..43e8be14 100644 --- a/src/audio.c +++ b/src/audio.c @@ -128,8 +128,8 @@ static void EmptyMusicStream(int index); // Empty music buffers static MixChannel_t* InitMixChannel(unsigned short sampleRate, unsigned char mixChannel, unsigned char channels, bool floatingPoint); // For streaming into mix channels. static void CloseMixChannel(MixChannel_t* mixc); // Frees mix channel -static unsigned short BufferMixChannel(MixChannel_t* mixc, void *data, int numberElements); // Pushes more audio data into mixc mix channel, if NULL is passed it pauses -static unsigned short FillAlBufferWithSilence(MixChannel_t *mixc, ALuint buffer); // Fill buffer with zeros, returns number processed +static int BufferMixChannel(MixChannel_t* mixc, void *data, int numberElements); // Pushes more audio data into mixc mix channel, if NULL is passed it pauses +static int FillAlBufferWithSilence(MixChannel_t *mixc, ALuint buffer); // Fill buffer with zeros, returns number processed static void ResampleShortToFloat(short *shorts, float *floats, unsigned short len); // Pass two arrays of the same legnth in static void ResampleByteToFloat(char *chars, float *floats, unsigned short len); // Pass two arrays of same length in static int IsMusicStreamReadyForBuffering(int index); // Checks if music buffer is ready to be refilled @@ -292,7 +292,7 @@ static void CloseMixChannel(MixChannel_t* mixc) // Pushes more audio data into mixc mix channel, only one buffer per call // Call "BufferMixChannel(mixc, NULL, 0)" if you want to pause the audio. // @Returns number of samples that where processed. -static unsigned short BufferMixChannel(MixChannel_t* mixc, void *data, int numberElements) +static int BufferMixChannel(MixChannel_t* mixc, void *data, int numberElements) { if(!mixc || mixChannelsActive_g[mixc->mixChannel] != mixc) return 0; // when there is two channels there must be an even number of samples @@ -331,7 +331,7 @@ static unsigned short BufferMixChannel(MixChannel_t* mixc, void *data, int numbe } // fill buffer with zeros, returns number processed -static unsigned short FillAlBufferWithSilence(MixChannel_t *mixc, ALuint buffer) +static int FillAlBufferWithSilence(MixChannel_t *mixc, ALuint buffer) { if(mixc->floatingPoint){ float pcm[MUSIC_BUFFER_SIZE_FLOAT] = {0.f}; @@ -377,6 +377,7 @@ static void ResampleByteToFloat(char *chars, float *floats, unsigned short len) } // used to output raw audio streams, returns negative numbers on error +// if floating point is false the data size is 16bit short, otherwise it is float 32bit RawAudioContext InitRawAudioContext(int sampleRate, int channels, bool floatingPoint) { int mixIndex; @@ -398,6 +399,19 @@ void CloseRawAudioContext(RawAudioContext ctx) CloseMixChannel(mixChannelsActive_g[ctx]); } +int BufferRawAudioContext(RawAudioContext ctx, void *data, int numberElements) +{ + int numBuffered = 0; + if(ctx >= 0) + { + MixChannel_t* mixc = mixChannelsActive_g[ctx]; + numBuffered = BufferMixChannel(mixc, data, numberElements); + } + return numBuffered; +} + + + //---------------------------------------------------------------------------------- diff --git a/src/audio.h b/src/audio.h index d3276bf6..1140a60a 100644 --- a/src/audio.h +++ b/src/audio.h @@ -102,8 +102,12 @@ float GetMusicTimePlayed(int index); // Get current m int getMusicStreamCount(void); void SetMusicPitch(int index, float pitch); +// used to output raw audio streams, returns negative numbers on error +// if floating point is false the data size is 16bit short, otherwise it is float 32bit RawAudioContext InitRawAudioContext(int sampleRate, int channels, bool floatingPoint); + void CloseRawAudioContext(RawAudioContext ctx); +int BufferRawAudioContext(RawAudioContext ctx, void *data, int numberElements); // returns number of elements buffered #ifdef __cplusplus } diff --git a/src/raylib.h b/src/raylib.h index 6efde710..986dc7bf 100644 --- a/src/raylib.h +++ b/src/raylib.h @@ -896,8 +896,12 @@ float GetMusicTimePlayed(int index); // Get current m int getMusicStreamCount(void); void SetMusicPitch(int index, float pitch); -RawAudioContext InitRawAudioContext(int sampleRate, int channels, bool floatingPoint); // used to output raw audio streams, returns negative numbers on error +// used to output raw audio streams, returns negative numbers on error +// if floating point is false the data size is 16bit short, otherwise it is float 32bit +RawAudioContext InitRawAudioContext(int sampleRate, int channels, bool floatingPoint); + void CloseRawAudioContext(RawAudioContext ctx); +int BufferRawAudioContext(RawAudioContext ctx, void *data, int numberElements); // returns number of elements buffered #ifdef __cplusplus }