218 lines
3.5 KiB
C++
218 lines
3.5 KiB
C++
#include <errno.h>
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#include <unistd.h>
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#include "gtk_s9x.h"
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#include "gtk_sound.h"
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#include "gtk_sound_driver.h"
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#ifdef USE_PORTAUDIO
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#include "gtk_sound_driver_portaudio.h"
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#endif
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#ifdef USE_OSS
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#include "gtk_sound_driver_oss.h"
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#endif
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#ifdef USE_JOYSTICK
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#include "gtk_sound_driver_sdl.h"
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#endif
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#ifdef USE_ALSA
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#include "gtk_sound_driver_alsa.h"
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#endif
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#ifdef USE_PULSEAUDIO
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#include "gtk_sound_driver_pulse.h"
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#endif
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static int playback_rates[8] =
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{
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0, 8000, 11025, 16000, 22050, 32000, 44100, 48000
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};
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S9xSoundDriver *driver;
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int
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S9xSoundBase2log (int num)
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{
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int power;
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if (num < 1)
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return 0;
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for (power = 0; num > 1; power++)
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{
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num >>= 1;
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}
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return power;
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}
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int
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S9xSoundPowerof2 (int num)
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{
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return (1 << num);
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}
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void
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S9xPortSoundInit (void)
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{
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int pao_driver = 0;
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int sdl_driver = 0;
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int oss_driver = 0;
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int alsa_driver = 0;
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int pulse_driver = 0;
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int max_driver = 0;
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driver = NULL;
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#ifdef USE_PORTAUDIO
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sdl_driver++;
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oss_driver++;
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alsa_driver++;
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pulse_driver++;
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max_driver++;
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#endif
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#ifdef USE_OSS
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sdl_driver++;
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alsa_driver++;
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pulse_driver++;
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max_driver++;
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#endif
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#ifdef USE_JOYSTICK
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alsa_driver++;
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pulse_driver++;
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max_driver++;
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#endif
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#ifdef USE_ALSA
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max_driver++;
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pulse_driver++;
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#endif
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#ifdef USE_PULSEAUDIO
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max_driver++;
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#endif
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if (gui_config->sound_driver >= max_driver)
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gui_config->sound_driver = 0;
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#ifdef USE_PORTAUDIO
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if (gui_config->sound_driver == pao_driver)
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driver = new S9xPortAudioSoundDriver ();
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#endif
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#ifdef USE_OSS
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if (gui_config->sound_driver == oss_driver)
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driver = new S9xOSSSoundDriver ();
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#endif
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#ifdef USE_JOYSTICK
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if (gui_config->sound_driver == sdl_driver)
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driver = new S9xSDLSoundDriver ();
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#endif
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#ifdef USE_ALSA
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if (gui_config->sound_driver == alsa_driver)
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driver = new S9xAlsaSoundDriver ();
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#endif
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#ifdef USE_PULSEAUDIO
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if (gui_config->sound_driver == pulse_driver)
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driver = new S9xPulseSoundDriver ();
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#endif
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if (driver != NULL)
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{
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driver->init ();
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if (gui_config->auto_input_rate)
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{
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Settings.SoundInputRate = top_level->get_auto_input_rate ();
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}
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else
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{
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Settings.SoundInputRate = CLAMP (gui_config->sound_input_rate, 8000, 48000);
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}
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Settings.SoundPlaybackRate = playback_rates[gui_config->sound_playback_rate];
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S9xInitSound (gui_config->sound_buffer_size, 0);
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S9xSetSoundMute (FALSE);
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}
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else
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{
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S9xSetSoundMute (gui_config->mute_sound);
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}
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return;
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}
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void
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S9xPortSoundReinit (void)
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{
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S9xPortSoundDeinit ();
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/* Ensure the sound device is released before trying to reopen it. */
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sync ();
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S9xPortSoundInit ();
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}
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void
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S9xPortSoundDeinit (void)
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{
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S9xSoundStop ();
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driver->terminate ();
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delete driver;
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return;
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}
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void
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S9xSoundStart (void)
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{
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driver->start ();
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return;
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}
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void
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S9xSoundStop (void)
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{
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driver->stop ();
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return;
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}
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bool8
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S9xOpenSoundDevice (void)
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{
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if (gui_config->mute_sound)
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return FALSE;
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gui_config->sound_buffer_size = CLAMP (gui_config->sound_buffer_size, 2, 256);
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return driver->open_device ();
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}
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/* This really shouldn't be in the port layer */
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void
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S9xToggleSoundChannel (int c)
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{
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static int sound_switch = 255;
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if (c == 8)
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sound_switch = 255;
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else
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sound_switch ^= 1 << c;
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S9xSetSoundControl (sound_switch);
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return;
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}
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