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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#include "common/scummsys.h"
#if defined(SDL_BACKEND)
#include "backends/mixer/sdl13/sdl13-mixer.h"
#include "common/debug.h"
#include "common/system.h"
#include "common/config-manager.h"
#include "common/textconsole.h"
#ifdef GP2X
#define SAMPLES_PER_SEC 11025
#else
#define SAMPLES_PER_SEC 44100
#endif
Sdl13MixerManager::Sdl13MixerManager()
:
SdlMixerManager(),
_device(0) {
}
Sdl13MixerManager::~Sdl13MixerManager() {
_mixer->setReady(false);
SDL_CloseAudioDevice(_device);
delete _mixer;
}
void Sdl13MixerManager::init() {
// Start SDL Audio subsystem
if (SDL_InitSubSystem(SDL_INIT_AUDIO) == -1) {
error("Could not initialize SDL: %s", SDL_GetError());
}
// Get the desired audio specs
SDL_AudioSpec desired = getAudioSpec(SAMPLES_PER_SEC);
// Start SDL audio with the desired specs
_device = SDL_OpenAudioDevice(NULL, 0, &desired, &_obtained,
SDL_AUDIO_ALLOW_FREQUENCY_CHANGE);
if (_device <= 0) {
warning("Could not open audio device: %s", SDL_GetError());
_mixer = new Audio::MixerImpl(g_system, desired.freq);
assert(_mixer);
_mixer->setReady(false);
} else {
debug(1, "Output sample rate: %d Hz", _obtained.freq);
_mixer = new Audio::MixerImpl(g_system, _obtained.freq);
assert(_mixer);
_mixer->setReady(true);
startAudio();
}
}
void Sdl13MixerManager::startAudio() {
// Start the sound system
SDL_PauseAudioDevice(_device, 0);
}
void Sdl13MixerManager::suspendAudio() {
SDL_CloseAudioDevice(_device);
_audioSuspended = true;
}
int Sdl13MixerManager::resumeAudio() {
if (!_audioSuspended)
return -2;
_device = SDL_OpenAudioDevice(NULL, 0, &_obtained, NULL, 0);
if (_device <= 0) {
return -1;
}
SDL_PauseAudioDevice(_device, 0);
_audioSuspended = false;
return 0;
}
#endif
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