fe49c73a6b
- Define new structure bx_pcm_param_t and use it as a parameter for the method
sendwavepacket(). The method startwavepacket() is now called from
sendwavepacket() in case of a parameter change (temporary solution).
- soundsdl: Replaced waveready() call by some more accurate code for buffer
space check in sendwavepacket().
- soundsdl: Moved code for reading from audio buffer to a new function.
- soundsdl: Temporarily increase the audio buffer size.
- Preparing the SB16 code for the OPL emulation port from DOSBox.
59 lines
1.9 KiB
C++
59 lines
1.9 KiB
C++
/////////////////////////////////////////////////////////////////////////
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// $Id$
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/////////////////////////////////////////////////////////////////////////
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//
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// Copyright (C) 2012-2015 The Bochs Project
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; either
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// version 2 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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// Lowlevel sound output support for SDL written by Volker Ruppert
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#if BX_WITH_SDL || BX_WITH_SDL2
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#include "bochs.h"
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#include <SDL_audio.h>
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class bx_sound_sdl_c : public bx_sound_lowlevel_c {
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public:
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bx_sound_sdl_c();
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virtual ~bx_sound_sdl_c();
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virtual int get_type() {return BX_SOUNDLOW_SDL;}
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virtual int waveready();
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virtual int openwaveoutput(const char *wavedev);
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virtual int startwaveplayback(int frequency, int bits, bx_bool stereo, int format);
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virtual int sendwavepacket(int length, Bit8u data[], bx_pcm_param_t *param);
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virtual int stopwaveplayback();
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virtual int closewaveoutput();
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virtual int register_wave_callback(void *, get_wave_cb_t wd_cb);
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virtual void unregister_wave_callback(int callback_id);
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void get_wave_data(Bit8u *stream, int len);
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private:
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bx_bool WaveOpen;
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SDL_AudioSpec fmt;
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int cb_count;
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struct {
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void *device;
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get_wave_cb_t cb;
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} get_wave[BX_MAX_WAVE_CALLBACKS];
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int pcm_callback_id;
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};
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#endif // BX_WITH_SDL || BX_WITH_SDL2
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