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 #include "gnap/sound.h"
24 #include "audio/audiostream.h"
25 #include "audio/decoders/wave.h"
26
27 namespace Gnap {
28
SoundMan(GnapEngine * vm)29 SoundMan::SoundMan(GnapEngine *vm) : _vm(vm) {
30 }
31
~SoundMan()32 SoundMan::~SoundMan() {
33 }
34
playSound(int resourceId,bool looping)35 void SoundMan::playSound(int resourceId, bool looping) {
36 SoundItem soundItem;
37 soundItem._resourceId = resourceId;
38
39 SoundResource *soundResource = _vm->_soundCache->get(resourceId);
40 Common::MemoryReadStream *stream = new Common::MemoryReadStream(soundResource->_data, soundResource->_size, DisposeAfterUse::NO);
41 Audio::AudioStream *audioStream = Audio::makeLoopingAudioStream(Audio::makeWAVStream(stream, DisposeAfterUse::YES), looping ? 0 : 1);
42
43 _vm->_mixer->playStream(Audio::Mixer::kPlainSoundType, &soundItem._handle, audioStream);
44
45 _items.push_back(soundItem);
46
47 }
48
stopSound(int resourceId)49 void SoundMan::stopSound(int resourceId) {
50 const int index = find(resourceId);
51 if (index < 0)
52 return;
53
54 _vm->_soundCache->release(_items[index]._resourceId);
55 _vm->_mixer->stopHandle(_items[index]._handle);
56 _items.remove_at(index);
57 }
58
setSoundVolume(int resourceId,int volume)59 void SoundMan::setSoundVolume(int resourceId, int volume) {
60 if (resourceId == -1 || volume < 0 || volume > 100)
61 return;
62
63 const int index = find(resourceId);
64 if (index < 0)
65 return;
66
67 int realVol = volume * 2.55;
68 _vm->_mixer->setChannelVolume(_items[index]._handle, realVol);
69 }
70
isSoundPlaying(int resourceId)71 bool SoundMan::isSoundPlaying(int resourceId) {
72 const int index = find(resourceId);
73 if (index < 0)
74 return false;
75
76 return _vm->_mixer->isSoundHandleActive(_items[index]._handle);
77 }
78
stopAll()79 void SoundMan::stopAll() {
80 for (int index = 0; index < (int)_items.size(); ++index) {
81 _vm->_soundCache->release(_items[index]._resourceId);
82 _vm->_mixer->stopHandle(_items[index]._handle);
83 }
84 }
85
update()86 void SoundMan::update() {
87 for (int index = 0; index < (int)_items.size(); ++index)
88 if (!_vm->_mixer->isSoundHandleActive(_items[index]._handle)) {
89 _vm->_soundCache->release(_items[index]._resourceId);
90 _items.remove_at(index);
91 --index;
92 }
93 }
94
find(int resourceId)95 int SoundMan::find(int resourceId) {
96 for (int index = 0; index < (int)_items.size(); ++index)
97 if (_items[index]._resourceId == resourceId)
98 return index;
99 return -1;
100 }
101
102 } // End of namespace Gnap
103