89 lines
2.5 KiB
C++
89 lines
2.5 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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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 as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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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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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#include "got/musicdriver.h"
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#include "common/config-manager.h"
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#include "common/debug.h"
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#include "common/system.h"
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namespace Got {
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MusicDriver_Got::MusicDriver_Got(uint8 timerFrequency) : _isOpen(false), _timer_param(nullptr), _timer_proc(nullptr) {
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setTimerFrequency(timerFrequency);
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}
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bool MusicDriver_Got::isOpen() const {
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return _isOpen;
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}
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void MusicDriver_Got::setTimerFrequency(uint8 timerFrequency) {
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assert(timerFrequency > 0);
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_timerFrequency = timerFrequency;
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}
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void MusicDriver_Got::onTimer() {
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if (_timer_proc && _timer_param)
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_timer_proc(_timer_param);
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}
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void MusicDriver_Got::setTimerCallback(void *timer_param, Common::TimerManager::TimerProc timer_proc) {
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_timer_param = timer_param;
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_timer_proc = timer_proc;
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}
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int MusicDriver_Got_NULL::open() {
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// There is no output device, so register a timer to trigger the callbacks.
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g_system->getTimerManager()->installTimerProc(timerCallback, 1000000 / _timerFrequency, this, "MusicDriver_Got_NULL");
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_isOpen = true;
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return 0;
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}
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void MusicDriver_Got_NULL::close() {
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if (!_isOpen)
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return;
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g_system->getTimerManager()->removeTimerProc(timerCallback);
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_isOpen = false;
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}
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void MusicDriver_Got_NULL::setTimerFrequency(uint8 timerFrequency) {
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if (timerFrequency == _timerFrequency)
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return;
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MusicDriver_Got::setTimerFrequency(timerFrequency);
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// Update the timer frequency.
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g_system->getTimerManager()->removeTimerProc(timerCallback);
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g_system->getTimerManager()->installTimerProc(timerCallback, 1000000 / _timerFrequency, this, "MusicDriver_Got_NULL");
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}
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void MusicDriver_Got_NULL::timerCallback(void *data) {
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MusicDriver_Got_NULL *driver = (MusicDriver_Got_NULL *)data;
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driver->onTimer();
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}
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} // namespace Got
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