1 /* ScummVM - Graphic Adventure Engine
2  *
3  * ScummVM is the legal property of its developers, whose names
4  * are too numerous to list here. Please refer to the COPYRIGHT
5  * file distributed with this source distribution.
6  *
7  * This program is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU General Public License
9  * as published by the Free Software Foundation; either version 2
10  * of the License, or (at your option) any later version.
11  *
12  * This program is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15  * GNU General Public License for more details.
16  *
17  * You should have received a copy of the GNU General Public License
18  * along with this program; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
20  *
21  */
22 
23 #ifndef SKY_SOUND_H
24 #define SKY_SOUND_H
25 
26 
27 #include "common/scummsys.h"
28 #include "audio/mixer.h"
29 
30 namespace Sky {
31 
32 class Disk;
33 
34 enum {
35 	SOUND_CH0    = 0,
36 	SOUND_CH1    = 1,
37 	SOUND_BG     = 2,
38 	SOUND_VOICE  = 3,
39 	SOUND_SPEECH = 4
40 };
41 
42 struct SfxQueue {
43 	uint8 count, fxNo, chan, vol;
44 };
45 
46 #define MAX_QUEUED_FX 4
47 
48 class Sound {
49 protected:
50 
51 public:
52 
53 	Audio::Mixer *_mixer;
54 	Audio::SoundHandle _voiceHandle;
55 	Audio::SoundHandle _effectHandle;
56 	Audio::SoundHandle _bgSoundHandle;
57 	Audio::SoundHandle _ingameSound0, _ingameSound1, _ingameSpeech;
58 
59 	uint16 _saveSounds[2];
60 
61 protected:
62 
63 	void playSound(uint32 id, byte *sound, uint32 size, Audio::SoundHandle *handle);
64 
65 public:
66 	Sound(Audio::Mixer *mixer, Disk *pDisk, uint8 pVolume);
67 	~Sound();
68 
69 	void loadSection(uint8 pSection);
70 	void playSound(uint16 sound, uint16 volume, uint8 channel);
71 	void fnStartFx(uint32 sound, uint8 channel);
72 	bool startSpeech(uint16 textNum);
speechFinished()73 	bool speechFinished() { return !_mixer->isSoundHandleActive(_ingameSpeech); }
74 	void fnPauseFx();
75 	void fnUnPauseFx();
76 	void fnStopFx();
77 	void stopSpeech();
78 	void checkFxQueue();
79 	void restoreSfx();
80 	uint8 _soundsTotal;
81 
82 private:
83 	Disk *_skyDisk;
84 	uint16 _sfxBaseOfs;
85 	uint8 *_soundData;
86 	uint8 *_sampleRates, *_sfxInfo;
87 	uint8 _mainSfxVolume;
88 
89 	bool _isPaused;
90 
91 	static uint16 _speechConvertTable[8];
92 	static SfxQueue _sfxQueue[MAX_QUEUED_FX];
93 };
94 
95 } // End of namespace Sky
96 
97 #endif
98