119 lines
5.8 KiB
C
119 lines
5.8 KiB
C
/**********************************************************************************************
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*
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* raylib.audio
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*
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* Basic functions to manage Audio: InitAudioDevice, LoadAudioFiles, PlayAudioFiles
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*
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* Uses external lib:
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* OpenAL Soft - Audio device management lib (http://kcat.strangesoft.net/openal.html)
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* stb_vorbis - Ogg audio files loading (http://www.nothings.org/stb_vorbis/)
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*
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* Copyright (c) 2015 Ramon Santamaria (@raysan5)
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*
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* This software is provided "as-is", without any express or implied warranty. In no event
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* will the authors be held liable for any damages arising from the use of this software.
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*
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* Permission is granted to anyone to use this software for any purpose, including commercial
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* applications, and to alter it and redistribute it freely, subject to the following restrictions:
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*
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* 1. The origin of this software must not be misrepresented; you must not claim that you
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* wrote the original software. If you use this software in a product, an acknowledgment
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* in the product documentation would be appreciated but is not required.
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*
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* 2. Altered source versions must be plainly marked as such, and must not be misrepresented
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* as being the original software.
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*
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* 3. This notice may not be removed or altered from any source distribution.
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*
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**********************************************************************************************/
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#ifndef AUDIO_H
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#define AUDIO_H
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//----------------------------------------------------------------------------------
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// Defines and Macros
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//----------------------------------------------------------------------------------
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//...
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//----------------------------------------------------------------------------------
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// Types and Structures Definition
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// NOTE: Below types are required for CAMERA_STANDALONE usage
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//----------------------------------------------------------------------------------
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#ifndef __cplusplus
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// Boolean type
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#if !defined(_STDBOOL_H)
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typedef enum { false, true } bool;
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#define _STDBOOL_H
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#endif
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#endif
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// Sound source type
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typedef struct Sound {
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unsigned int source;
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unsigned int buffer;
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AudioError error; // if there was any error during the creation or use of this Sound
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} Sound;
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// Wave type, defines audio wave data
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typedef struct Wave {
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void *data; // Buffer data pointer
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unsigned int dataSize; // Data size in bytes
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unsigned int sampleRate;
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short bitsPerSample;
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short channels;
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} Wave;
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typedef int RawAudioContext;
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#ifdef __cplusplus
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extern "C" { // Prevents name mangling of functions
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#endif
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//----------------------------------------------------------------------------------
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// Global Variables Definition
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//----------------------------------------------------------------------------------
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//...
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//----------------------------------------------------------------------------------
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// Module Functions Declaration
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//----------------------------------------------------------------------------------
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void InitAudioDevice(void); // Initialize audio device and context
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void CloseAudioDevice(void); // Close the audio device and context (and music stream)
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bool IsAudioDeviceReady(void); // True if call to InitAudioDevice() was successful and CloseAudioDevice() has not been called yet
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Sound LoadSound(char *fileName); // Load sound to memory
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Sound LoadSoundFromWave(Wave wave); // Load sound to memory from wave data
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Sound LoadSoundFromRES(const char *rresName, int resId); // Load sound to memory from rRES file (raylib Resource)
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void UnloadSound(Sound sound); // Unload sound
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void PlaySound(Sound sound); // Play a sound
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void PauseSound(Sound sound); // Pause a sound
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void StopSound(Sound sound); // Stop playing a sound
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bool IsSoundPlaying(Sound sound); // Check if a sound is currently playing
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void SetSoundVolume(Sound sound, float volume); // Set volume for a sound (1.0 is max level)
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void SetSoundPitch(Sound sound, float pitch); // Set pitch for a sound (1.0 is base level)
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int PlayMusicStream(int index, char *fileName); // Start music playing (open stream)
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void UpdateMusicStream(int index); // Updates buffers for music streaming
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void StopMusicStream(int index); // Stop music playing (close stream)
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void PauseMusicStream(int index); // Pause music playing
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void ResumeMusicStream(int index); // Resume playing paused music
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bool IsMusicPlaying(int index); // Check if music is playing
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void SetMusicVolume(int index, float volume); // Set volume for music (1.0 is max level)
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void SetMusicPitch(int index, float pitch); // Set pitch for a music (1.0 is base level)
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float GetMusicTimeLength(int index); // Get music time length (in seconds)
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float GetMusicTimePlayed(int index); // Get current music time played (in seconds)
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int GetMusicStreamCount(void); // Get number of streams loaded
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// used to output raw audio streams, returns negative numbers on error
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// if floating point is false the data size is 16bit short, otherwise it is float 32bit
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RawAudioContext InitRawAudioContext(int sampleRate, int channels, bool floatingPoint);
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void CloseRawAudioContext(RawAudioContext ctx);
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int BufferRawAudioContext(RawAudioContext ctx, void *data, unsigned short numberElements); // returns number of elements buffered
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#ifdef __cplusplus
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}
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#endif
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#endif // AUDIO_H
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