70 lines
1.7 KiB
C++
70 lines
1.7 KiB
C++
/*
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* Copyright (C) EdgeTX
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*
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* Based on code named
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* opentx - https://github.com/opentx/opentx
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* th9x - http://code.google.com/p/th9x
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* er9x - http://code.google.com/p/er9x
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* gruvin9x - http://code.google.com/p/gruvin9x
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*
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* License GPLv2: http://www.gnu.org/licenses/gpl-2.0.html
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program 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
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* GNU General Public License for more details.
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*/
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#include "audio.h"
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#include "simuaudio.h"
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#include <stdint.h>
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#include <SDL.h>
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#define AUDIO_FMT AUDIO_S16SYS
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static SDL_AudioDeviceID _sdl_audio_device = 0;
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void simuQueueAudio(const uint8_t* data, uint32_t len)
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{
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#if !defined(SOFTWARE_VOLUME)
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int volume = (simuAudioGetVolume() * SDL_MIX_MAXVOLUME ) / VOLUME_LEVEL_MAX;
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SDL_MixAudioFormat((uint8_t*)data, data, AUDIO_FMT, len, volume);
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#endif
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SDL_QueueAudio(_sdl_audio_device, data, len);
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}
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bool simuAudioInit()
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{
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SDL_AudioSpec wanted = {
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.freq = AUDIO_SAMPLE_RATE,
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.format = AUDIO_FMT,
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.channels = 1,
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.silence = 0,
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.samples = 1024,
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};
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SDL_AudioSpec have;
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_sdl_audio_device = SDL_OpenAudioDevice(0, 0, &wanted, &have, 0);
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if (!_sdl_audio_device) {
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SDL_Log("Couldn't open audio: %s\n", SDL_GetError());
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return false;
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}
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SDL_PauseAudioDevice(_sdl_audio_device, 0);
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return true;
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}
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void simuAudioDeInit()
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{
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if(_sdl_audio_device > 0) {
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SDL_CloseAudioDevice(_sdl_audio_device);
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_sdl_audio_device = 0;
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}
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}
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