mirror of
https://github.com/joel16/VitaShell.git
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130 lines
2.8 KiB
C
130 lines
2.8 KiB
C
/*
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* vitaWav.h: Header for WAV audio playback
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* This file is part of the "Phoenix Game Engine".
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*
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* Copyright (C) 2007 Phoenix Game Engine
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* Copyright (C) 2007 InsertWittyName <tias_dp@hotmail.com>
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*
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*/
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#ifndef __VITA_AUDIO_H__
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#define __VITA_AUDIO_H__
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define VITA_WAV_MAX_SLOTS 128
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#define VITA_NUM_AUDIO_CHANNELS 1 // 4
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#define VITA_NUM_AUDIO_SAMPLES 1024
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#define VITA_VOLUME_MAX 0x8000
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typedef void (* vitaAudioCallback)(void *buf, unsigned int reqn, void *pdata);
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/** @defgroup vitaWav WAV Library
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* @{
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*/
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/**
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* A WAV file struct
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*/
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typedef struct
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{
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unsigned long channels; /**< Number of channels */
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unsigned long sampleRate; /**< Sample rate */
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unsigned long sampleCount; /**< Sample count */
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unsigned long dataLength; /**< Data length */
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unsigned long rateRatio; /**< Rate ratio (sampleRate / 44100 * 0x10000) */
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unsigned long playPtr; /**< Internal */
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unsigned long playPtr_frac; /**< Internal */
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unsigned int loop; /**< Loop flag */
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unsigned char *data; /**< A pointer to the actual WAV data */
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unsigned long id; /**< The ID of the WAV */
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unsigned int bitPerSample; /**< The bit rate of the WAV */
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} vitaWav;
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/**
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* Initialise the WAV playback
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*
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* @returns 1 on success.
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*/
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int vitaWavInit(void);
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/**
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* Shutdown WAV playback
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*/
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void vitaWavShutdown(void);
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/**
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* Load a WAV file
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*
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* @param filename - Path of the file to load.
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*
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* @returns A pointer to a ::vitaWav struct or NULL on error.
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*/
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vitaWav *vitaWavLoad(const char *filename);
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/**
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* Load a WAV file from memory
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*
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* @param buffer - Buffer that contains the WAV data.
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*
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* @param size - Size of the buffer.
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*
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* @returns A pointer to a ::vitaWav struct or NULL on error.
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*/
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vitaWav *vitaWavLoadMemory(const unsigned char *buffer, int size);
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/**
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* Unload a previously loaded WAV file
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*
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* @param wav - A valid ::vitaWav
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*/
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void vitaWavUnload(vitaWav *wav);
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/**
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* Start playing a loaded WAV file
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*
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* @param wav A pointer to a valid ::vitaWav struct.
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*
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* @returns 1 on success
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*/
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int vitaWavPlay(vitaWav *wav);
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/**
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* Stop playing a loaded WAV
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*
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* @param wav A pointer to a valid ::vitaWav struct.
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*
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* @returns 1 on success
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*/
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void vitaWavStop(vitaWav *wav);
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/**
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* Stop playing all WAVs
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*/
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void vitaWavStopAll(void);
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/**
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* Set the loop of the WAV playback
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*
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* @param wav - A pointer to a valid ::vitaWav struct.
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*
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* @param loop - Set to 1 to loop, 0 to playback once.
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*/
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void vitaWavLoop(vitaWav *wav, unsigned int loop);
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/** @} */
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void vitaAudioSetVolume(int channel, int left, int right);
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int vitaAudioSetFrequency(int channel, unsigned short freq);
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void vitaAudioSetChannelCallback(int channel, vitaAudioCallback callback, void *data);
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int vitaAudioInit(int priority);
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void vitaAudioShutdown(void);
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#ifdef __cplusplus
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}
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#endif // __cplusplus
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#endif // __PGEWAV_H__
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