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1 // VisualBoyAdvance - Nintendo Gameboy/GameboyAdvance (TM) emulator.
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2 // Copyright (C) 2008 VBA-M development team
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3
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4 // This program is free software; you can redistribute it and/or modify
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5 // it under the terms of the GNU General Public License as published by
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6 // the Free Software Foundation; either version 2, or(at your option)
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7 // any later version.
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8 //
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9 // This program is distributed in the hope that it will be useful,
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10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
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11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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12 // GNU General Public License for more details.
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13 //
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14 // You should have received a copy of the GNU General Public License
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15 // along with this program; if not, write to the Free Software Foundation,
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16 // Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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17
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18 #ifndef __VBA_SOUND_SDL_H__
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19 #define __VBA_SOUND_SDL_H__
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20
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21 #include "SoundDriver.h"
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22 #include "RingBuffer.h"
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23
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24 #include <SDL.h>
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25
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26 const int SDL_SAMPLE_RATE = 44100;
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27
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28 class SoundSDL: public SoundDriver
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29 {
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30 public:
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31 SoundSDL();
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32 virtual ~SoundSDL();
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33
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34 virtual bool init();
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35 virtual void pause();
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36 virtual void reset();
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37 virtual void resume();
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38 virtual void write(u16 * finalWave, int length);
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39 virtual bool setThrottle(unsigned short throttle);
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40
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41 //private:
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42 RingBuffer<u16> _rbuf;
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43
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44 SDL_cond * _cond;
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45 SDL_mutex * _mutex;
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46
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47 bool _initialized;
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48
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49 // Defines what delay in seconds we keep in the sound buffer
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50 static const float _delay;
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51
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52 static void soundCallback(void *data, u8 *stream, int length);
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53 virtual void read(u16 * stream, int length);
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54 };
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55
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56 #endif // __VBA_SOUND_SDL_H__
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