mirror of
https://github.com/libretro/scummvm.git
synced 2025-04-15 21:20:19 +00:00
66 lines
2.2 KiB
C++
66 lines
2.2 KiB
C++
/* ScummVM - Graphic Adventure Engine
|
|
*
|
|
* ScummVM is the legal property of its developers, whose names
|
|
* are too numerous to list here. Please refer to the COPYRIGHT
|
|
* file distributed with this source distribution.
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*
|
|
*/
|
|
|
|
#ifndef PSP_AUDIO_H
|
|
#define PSP_AUDIO_H
|
|
|
|
#include "backends/platform/psp/thread.h"
|
|
|
|
class PspAudio : public PspThreadable {
|
|
public:
|
|
enum {
|
|
NUM_BUFFERS = 2,
|
|
FREQUENCY = 44100 /* only frequency we allow */
|
|
};
|
|
typedef void (* callbackFunc)(void *userData, byte *samples, int len); // audio callback to call
|
|
PspAudio() : _pspChannel(0),
|
|
_numOfChannels(0), _numOfSamples(0), _callback(0),
|
|
_bufferToPlay(0), _bufferToFill(0),
|
|
_init(false), _paused(true) {
|
|
for (int i=0; i<NUM_BUFFERS; i++)
|
|
_buffers[i] = 0;
|
|
}
|
|
~PspAudio() { close(); }
|
|
bool playBuffer();
|
|
void nextBuffer(int &bufferIdx);
|
|
bool open(uint32 freq, uint32 numOfChannels, uint32 numOfSamples, callbackFunc callback, void *userData);
|
|
void close();
|
|
uint32 getFrequency() { return FREQUENCY; }
|
|
void pause() { _paused = true; }
|
|
void unpause() { _paused = false; }
|
|
virtual void threadFunction(); // actual audio thread
|
|
|
|
private:
|
|
int _pspChannel; // chosen hardware output channel
|
|
uint32 _numOfChannels; // 1 for mono; 2 for stereo
|
|
uint32 _numOfSamples;
|
|
callbackFunc _callback; // the callback to call between outputting audio
|
|
void *_userData; // userData to send with callback
|
|
byte *_buffers[NUM_BUFFERS];
|
|
int _bufferToPlay; // the next buffer to output
|
|
int _bufferToFill;
|
|
int _bufferSize;
|
|
bool _init; // flag for initialization
|
|
bool _paused;
|
|
};
|
|
|
|
#endif /* PSP_AUDIO_H */
|