192 lines
3.7 KiB
C++
192 lines
3.7 KiB
C++
/*****************************************************************************\
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Snes9x - Portable Super Nintendo Entertainment System (TM) emulator.
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This file is licensed under the Snes9x License.
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For further information, consult the LICENSE file in the root directory.
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\*****************************************************************************/
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#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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#include "snes9x.h"
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#include "apu/apu.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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#include "gtk_sound_driver_sdl.h"
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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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static S9xSoundDriver *driver;
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int 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 S9xSoundPowerof2(int num)
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{
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return (1 << num);
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}
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std::vector<std::string> S9xGetSoundDriverNames()
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{
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std::vector<std::string> names;
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#ifdef USE_PORTAUDIO
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names.push_back("PortAudio");
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#endif
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#ifdef USE_OSS
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names.push_back("OSS");
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#endif
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#ifdef USE_ALSA
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names.push_back("ALSA");
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#endif
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#ifdef USE_PULSEAUDIO
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names.push_back("PulseAudio");
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#endif
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names.push_back("SDL");
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return names;
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}
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void S9xPortSoundInit()
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{
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if (gui_config->sound_driver >= (int)gui_config->sound_drivers.size())
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gui_config->sound_driver = 0;
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auto &name = gui_config->sound_drivers[gui_config->sound_driver];
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#ifdef USE_PORTAUDIO
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if (name == "PortAudio")
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driver = new S9xPortAudioSoundDriver();
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#endif
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#ifdef USE_OSS
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if (name == "OSS")
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driver = new S9xOSSSoundDriver();
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#endif
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#ifdef USE_ALSA
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if (name == "ALSA")
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driver = new S9xAlsaSoundDriver();
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#endif
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#ifdef USE_PULSEAUDIO
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if (name == "PulseAudio")
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driver = new S9xPulseSoundDriver();
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#endif
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if (name == "SDL")
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driver = new S9xSDLSoundDriver();
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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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if (Settings.SoundInputRate == 0.0)
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{
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Settings.SoundInputRate = 31950;
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gui_config->auto_input_rate = 0;
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}
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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, 31700, 32300);
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}
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Settings.SoundPlaybackRate = playback_rates[gui_config->sound_playback_rate];
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S9xInitSound(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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}
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void S9xPortSoundReinit()
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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 S9xPortSoundDeinit()
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{
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S9xSoundStop();
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if (driver)
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driver->terminate();
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delete driver;
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}
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void S9xSoundStart()
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{
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if (driver)
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driver->start();
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}
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void S9xSoundStop()
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{
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if (driver)
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driver->stop();
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}
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bool8 S9xOpenSoundDevice()
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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 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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}
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