Merge pull request #116 from kd7tck/newaudio

Redesign audio system to support multiple mix channels

1 files changed, 19 insertions, 20 deletions

diff --git a/src/raylib.h b/src/raylib.h
index 911fd8b5..986dc7bf 100644
--- a/src/raylib.h
+++ b/src/raylib.h
@@ -451,10 +451,7 @@ typedef struct Wave {
     short channels;
 } Wave;
 
-// Audio Context, used to create custom audio streams that are not bound to a sound file. There can be
-// no more than 4 concurrent audio contexts in use. This is due to each active context being tied to
-// a dedicated mix channel.
-typedef void* AudioContext;
+typedef int RawAudioContext;
 
 // Texture formats
 // NOTE: Support depends on OpenGL version and platform
@@ -876,13 +873,6 @@ void InitAudioDevice(void);                                     // Initialize au
 void CloseAudioDevice(void);                                    // Close the audio device and context (and music stream)
 bool IsAudioDeviceReady(void);                                  // True if call to InitAudioDevice() was successful and CloseAudioDevice() has not been called yet
 
-// Audio contexts are for outputing custom audio waveforms, This will shut down any other sound sources currently playing
-// The mixChannel is what mix channel you want to operate on, 0-3 are the ones available. Each mix channel can only be used one at a time.
-// exmple usage is InitAudioContext(48000, 0, 2, true); // mixchannel 1, 48khz, stereo, floating point
-AudioContext InitAudioContext(unsigned short sampleRate, unsigned char mixChannel, unsigned char channels, bool floatingPoint);
-void CloseAudioContext(AudioContext ctx);                       // Frees audio context
-unsigned short UpdateAudioContext(AudioContext ctx, void *data, unsigned short numberElements); // Pushes more audio data into context mix channel, if NULL is passed to data then zeros are played
-
 Sound LoadSound(char *fileName);                                // Load sound to memory
 Sound LoadSoundFromWave(Wave wave);                             // Load sound to memory from wave data
 Sound LoadSoundFromRES(const char *rresName, int resId);        // Load sound to memory from rRES file (raylib Resource)
@@ -894,15 +884,24 @@ bool IsSoundPlaying(Sound sound);                               // Check if a so
 void SetSoundVolume(Sound sound, float volume);                 // Set volume for a sound (1.0 is max level)
 void SetSoundPitch(Sound sound, float pitch);                   // Set pitch for a sound (1.0 is base level)
 
-void PlayMusicStream(char *fileName);                           // Start music playing (open stream)
-void UpdateMusicStream(void);                                   // Updates buffers for music streaming
-void StopMusicStream(void);                                     // Stop music playing (close stream)
-void PauseMusicStream(void);                                    // Pause music playing
-void ResumeMusicStream(void);                                   // Resume playing paused music
-bool IsMusicPlaying(void);                                      // Check if music is playing
-void SetMusicVolume(float volume);                              // Set volume for music (1.0 is max level)
-float GetMusicTimeLength(void);                                 // Get current music time length (in seconds)
-float GetMusicTimePlayed(void);                                 // Get current music time played (in seconds)
+int PlayMusicStream(int musicIndex, char *fileName);            // Start music playing (open stream)
+void UpdateMusicStream(int index);                              // Updates buffers for music streaming
+void StopMusicStream(int index);                                // Stop music playing (close stream)
+void PauseMusicStream(int index);                               // Pause music playing
+void ResumeMusicStream(int index);                              // Resume playing paused music
+bool IsMusicPlaying(int index);                                 // Check if music is playing
+void SetMusicVolume(int index, float volume);                   // Set volume for music (1.0 is max level)
+float GetMusicTimeLength(int index);                            // Get current music time length (in seconds)
+float GetMusicTimePlayed(int index);                            // Get current music time played (in seconds)
+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
 }