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https://github.com/libretro/scummvm.git
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101 lines
2.5 KiB
C++
101 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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// Allow use of stuff in <nds.h>
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#define FORBIDDEN_SYMBOL_EXCEPTION_printf
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#define FORBIDDEN_SYMBOL_EXCEPTION_unistd_h
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#include "common/scummsys.h"
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#if defined(__DS__)
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#include "backends/mixer/maxmod/maxmod-mixer.h"
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#include "common/system.h"
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#include <nds.h>
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#include <maxmod9.h>
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MaxModMixerManager::MaxModMixerManager(int freq, int bufSize)
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:
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_freq(freq),
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_bufSize(bufSize) {
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}
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MaxModMixerManager::~MaxModMixerManager() {
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// HACK: This is called during the OSystem destructor, but Audio::MixerImpl calls
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// mutex functions from OSystem during its destructor, which causes a crash.
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// _mixer->setReady(false);
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_mixer = 0;
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mmStreamClose();
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}
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mm_word on_stream_request( mm_word length, mm_addr dest, mm_stream_formats format ) {
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Audio::MixerImpl *mixer = (Audio::MixerImpl *)g_system->getMixer();
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assert(mixer);
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mixer->mixCallback((byte *)dest, length * 4);
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return length;
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}
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void MaxModMixerManager::init() {
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_mixer = new Audio::MixerImpl(_freq);
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assert(_mixer);
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mm_ds_system sys;
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sys.mod_count = 0;
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sys.samp_count = 0;
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sys.mem_bank = 0;
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sys.fifo_channel = FIFO_MAXMOD;
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mmInit( &sys );
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_stream.sampling_rate = _freq;
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_stream.buffer_length = _bufSize / 4;
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_stream.callback = on_stream_request;
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_stream.format = MM_STREAM_16BIT_STEREO;
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_stream.timer = MM_TIMER2;
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_stream.manual = 1;
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mmStreamOpen( &_stream );
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_mixer->setReady(true);
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}
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void MaxModMixerManager::suspendAudio() {
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mmStreamClose();
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_audioSuspended = true;
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}
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int MaxModMixerManager::resumeAudio() {
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if (!_audioSuspended)
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return -2;
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mmStreamOpen( &_stream );
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_audioSuspended = false;
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return 0;
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}
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void MaxModMixerManager::updateAudio() {
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if (!_audioSuspended)
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mmStreamUpdate();
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}
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#endif
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