mirror of
https://github.com/libretro/scummvm.git
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164 lines
3.7 KiB
C++
164 lines
3.7 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
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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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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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* $URL$
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* $Id$
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*
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*/
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#ifndef MOHAWK_SOUND_H
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#define MOHAWK_SOUND_H
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#include "common/scummsys.h"
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#include "common/str.h"
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#include "sound/audiostream.h"
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#include "sound/decoders/adpcm.h"
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#include "sound/mididrv.h"
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#include "sound/midiparser.h"
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#include "sound/mixer.h"
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#include "mohawk/mohawk.h"
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#include "mohawk/resource.h"
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namespace Mohawk {
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#define MAX_CHANNELS 2 // Can there be more than 2?
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#define CUE_MAX 256
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struct SLSTRecord {
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uint16 index;
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uint16 sound_count;
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uint16 *sound_ids;
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uint16 fade_flags;
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uint16 loop;
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uint16 global_volume;
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uint16 u0;
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uint16 u1;
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uint16 *volumes;
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int16 *balances;
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uint16 *u2;
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};
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enum SndHandleType {
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kFreeHandle,
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kUsedHandle
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};
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struct SndHandle {
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Audio::SoundHandle handle;
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SndHandleType type;
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uint16 id;
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};
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struct SLSTSndHandle {
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Audio::SoundHandle *handle;
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uint16 id;
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};
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struct ADPC_Chunk { // Holds ADPCM status data, but is irrelevant for us.
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uint32 size;
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uint16 itemCount;
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uint16 channels;
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struct StatusItem {
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uint32 sampleFrame;
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uint32 channelStatus[MAX_CHANNELS];
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} *statusItems;
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};
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struct Cue_Chunk {
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uint32 size;
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uint16 point_count;
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struct {
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uint32 position;
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byte length;
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Common::String name;
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} cueList[CUE_MAX];
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};
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enum {
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kCodecRaw = 0,
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kCodecADPCM = 1,
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kCodecMPEG2 = 2
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};
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struct Data_Chunk {
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uint16 sample_rate;
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uint32 sample_count;
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byte bitsPerSample;
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byte channels;
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uint16 encoding;
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uint16 loop;
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uint32 loopStart;
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uint32 loopEnd;
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Common::SeekableReadStream *audio_data;
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};
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class MohawkEngine;
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class Sound {
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public:
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Sound(MohawkEngine *vm);
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~Sound();
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Audio::SoundHandle *playSound(uint16 id, byte volume = Audio::Mixer::kMaxChannelVolume, bool loop = false);
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Audio::SoundHandle *replaceSound(uint16 id, byte volume = Audio::Mixer::kMaxChannelVolume, bool loop = false);
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void playSoundBlocking(uint16 id, byte volume = Audio::Mixer::kMaxChannelVolume);
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void playMidi(uint16 id);
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void stopSound();
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void stopSound(uint16 id);
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void pauseSound();
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void resumeSound();
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bool isPlaying(uint16 id);
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void pauseBackground() {} //TODO: implement
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void resumeBackground() {}
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// Riven-specific
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void playSLST(uint16 index, uint16 card);
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void playSLST(SLSTRecord slstRecord);
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void pauseSLST();
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void resumeSLST();
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void stopAllSLST();
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static byte convertRivenVolume(uint16 volume);
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private:
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MohawkEngine *_vm;
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MidiDriver *_midiDriver;
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MidiParser *_midiParser;
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static Audio::AudioStream *makeMohawkWaveStream(Common::SeekableReadStream *stream);
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static Audio::AudioStream *makeOldMohawkWaveStream(Common::SeekableReadStream *stream);
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void initMidi();
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Common::Array<SndHandle> _handles;
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SndHandle *getHandle();
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// Riven-specific
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void playSLSTSound(uint16 index, bool fade, bool loop, uint16 volume, int16 balance);
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void stopSLSTSound(uint16 id, bool fade);
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Common::Array<SLSTSndHandle> _currentSLSTSounds;
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};
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} // End of namespace Mohawk
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#endif
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