diff options
Diffstat (limited to 'songdbj/org/tritonus/share/sampled/mixer/TDataLine.java')
-rw-r--r-- | songdbj/org/tritonus/share/sampled/mixer/TDataLine.java | 304 |
1 files changed, 304 insertions, 0 deletions
diff --git a/songdbj/org/tritonus/share/sampled/mixer/TDataLine.java b/songdbj/org/tritonus/share/sampled/mixer/TDataLine.java new file mode 100644 index 0000000000..a493bac6c5 --- /dev/null +++ b/songdbj/org/tritonus/share/sampled/mixer/TDataLine.java | |||
@@ -0,0 +1,304 @@ | |||
1 | /* | ||
2 | * TDataLine.java | ||
3 | * | ||
4 | * This file is part of Tritonus: http://www.tritonus.org/ | ||
5 | */ | ||
6 | |||
7 | /* | ||
8 | * Copyright (c) 1999 - 2004 by Matthias Pfisterer | ||
9 | * | ||
10 | * | ||
11 | * This program is free software; you can redistribute it and/or modify | ||
12 | * it under the terms of the GNU Library General Public License as published | ||
13 | * by the Free Software Foundation; either version 2 of the License, or | ||
14 | * (at your option) any later version. | ||
15 | * | ||
16 | * This program is distributed in the hope that it will be useful, | ||
17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
19 | * GNU Library General Public License for more details. | ||
20 | * | ||
21 | * You should have received a copy of the GNU Library General Public | ||
22 | * License along with this program; if not, write to the Free Software | ||
23 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | ||
24 | * | ||
25 | */ | ||
26 | |||
27 | /* | ||
28 | |<--- this code is formatted to fit into 80 columns --->| | ||
29 | */ | ||
30 | |||
31 | package org.tritonus.share.sampled.mixer; | ||
32 | |||
33 | import java.util.Collection; | ||
34 | import java.util.EventListener; | ||
35 | import java.util.EventObject; | ||
36 | import java.util.HashSet; | ||
37 | import java.util.Set; | ||
38 | |||
39 | import javax.sound.sampled.AudioFormat; | ||
40 | import javax.sound.sampled.AudioSystem; | ||
41 | import javax.sound.sampled.Control; | ||
42 | import javax.sound.sampled.DataLine; | ||
43 | import javax.sound.sampled.LineEvent; | ||
44 | import javax.sound.sampled.Line; | ||
45 | |||
46 | import org.tritonus.share.TDebug; | ||
47 | |||
48 | |||
49 | |||
50 | /** Base class for classes implementing DataLine. | ||
51 | */ | ||
52 | public abstract class TDataLine | ||
53 | extends TLine | ||
54 | implements DataLine | ||
55 | { | ||
56 | private static final int DEFAULT_BUFFER_SIZE = 128000; | ||
57 | |||
58 | private AudioFormat m_format; | ||
59 | private int m_nBufferSize; | ||
60 | private boolean m_bRunning; | ||
61 | // private boolean m_bActive; | ||
62 | |||
63 | |||
64 | |||
65 | |||
66 | public TDataLine(TMixer mixer, | ||
67 | DataLine.Info info) | ||
68 | { | ||
69 | super(mixer, | ||
70 | info); | ||
71 | init(info); | ||
72 | } | ||
73 | |||
74 | |||
75 | |||
76 | public TDataLine(TMixer mixer, | ||
77 | DataLine.Info info, | ||
78 | Collection<Control> controls) | ||
79 | { | ||
80 | super(mixer, | ||
81 | info, | ||
82 | controls); | ||
83 | init(info); | ||
84 | } | ||
85 | |||
86 | |||
87 | |||
88 | // IDEA: extract format and bufsize from info? | ||
89 | private void init(DataLine.Info info) | ||
90 | { | ||
91 | m_format = null; | ||
92 | m_nBufferSize = AudioSystem.NOT_SPECIFIED; | ||
93 | setRunning(false); | ||
94 | // setActive(false); | ||
95 | } | ||
96 | |||
97 | |||
98 | |||
99 | // not defined here: | ||
100 | // public void drain() | ||
101 | // public void flush() | ||
102 | |||
103 | |||
104 | |||
105 | public void start() | ||
106 | { | ||
107 | if (TDebug.TraceSourceDataLine) | ||
108 | { | ||
109 | TDebug.out("TDataLine.start(): called"); | ||
110 | } | ||
111 | setRunning(true); | ||
112 | } | ||
113 | |||
114 | |||
115 | |||
116 | public void stop() | ||
117 | { | ||
118 | if (TDebug.TraceSourceDataLine) | ||
119 | { | ||
120 | TDebug.out("TDataLine.stop(): called"); | ||
121 | } | ||
122 | setRunning(false); | ||
123 | } | ||
124 | |||
125 | |||
126 | |||
127 | public boolean isRunning() | ||
128 | { | ||
129 | return m_bRunning; | ||
130 | } | ||
131 | |||
132 | |||
133 | |||
134 | // TODO: recheck | ||
135 | protected void setRunning(boolean bRunning) | ||
136 | { | ||
137 | boolean bOldValue = isRunning(); | ||
138 | m_bRunning = bRunning; | ||
139 | if (bOldValue != isRunning()) | ||
140 | { | ||
141 | if (isRunning()) | ||
142 | { | ||
143 | startImpl(); | ||
144 | notifyLineEvent(LineEvent.Type.START); | ||
145 | } | ||
146 | else | ||
147 | { | ||
148 | stopImpl(); | ||
149 | notifyLineEvent(LineEvent.Type.STOP); | ||
150 | } | ||
151 | } | ||
152 | } | ||
153 | |||
154 | |||
155 | |||
156 | protected void startImpl() | ||
157 | { | ||
158 | } | ||
159 | |||
160 | |||
161 | |||
162 | protected void stopImpl() | ||
163 | { | ||
164 | } | ||
165 | |||
166 | |||
167 | |||
168 | /** | ||
169 | * This implementation returns the status of isRunning(). | ||
170 | * Subclasses should overwrite this method if there is more | ||
171 | * precise information about the status of the line available. | ||
172 | */ | ||
173 | public boolean isActive() | ||
174 | { | ||
175 | return isRunning(); | ||
176 | } | ||
177 | |||
178 | |||
179 | /* | ||
180 | public boolean isStarted() | ||
181 | { | ||
182 | return m_bStarted; | ||
183 | } | ||
184 | */ | ||
185 | |||
186 | // TODO: should only ALLOW engaging in data I/O. | ||
187 | // actual START event should only be sent when line really becomes active | ||
188 | /* | ||
189 | protected void setStarted(boolean bStarted) | ||
190 | { | ||
191 | m_bStarted = bStarted; | ||
192 | if (!isRunning()) | ||
193 | { | ||
194 | setActive(false); | ||
195 | } | ||
196 | } | ||
197 | */ | ||
198 | |||
199 | |||
200 | public AudioFormat getFormat() | ||
201 | { | ||
202 | return m_format; | ||
203 | } | ||
204 | |||
205 | |||
206 | |||
207 | protected void setFormat(AudioFormat format) | ||
208 | { | ||
209 | if (TDebug.TraceDataLine) | ||
210 | { | ||
211 | TDebug.out("TDataLine.setFormat(): setting: " + format); | ||
212 | } | ||
213 | m_format = format; | ||
214 | } | ||
215 | |||
216 | |||
217 | |||
218 | public int getBufferSize() | ||
219 | { | ||
220 | return m_nBufferSize; | ||
221 | } | ||
222 | |||
223 | |||
224 | |||
225 | protected void setBufferSize(int nBufferSize) | ||
226 | { | ||
227 | if (TDebug.TraceDataLine) | ||
228 | { | ||
229 | TDebug.out("TDataLine.setBufferSize(): setting: " + nBufferSize); | ||
230 | } | ||
231 | m_nBufferSize = nBufferSize; | ||
232 | } | ||
233 | |||
234 | |||
235 | |||
236 | // not defined here: | ||
237 | // public int available() | ||
238 | |||
239 | |||
240 | |||
241 | public int getFramePosition() | ||
242 | { | ||
243 | // TODO: | ||
244 | return -1; | ||
245 | } | ||
246 | |||
247 | |||
248 | |||
249 | public long getLongFramePosition() | ||
250 | { | ||
251 | // TODO: | ||
252 | return -1; | ||
253 | } | ||
254 | |||
255 | |||
256 | |||
257 | public long getMicrosecondPosition() | ||
258 | { | ||
259 | return (long) (getFramePosition() * getFormat().getFrameRate() * 1000000); | ||
260 | } | ||
261 | |||
262 | |||
263 | |||
264 | /* | ||
265 | * Has to be overridden to be useful. | ||
266 | */ | ||
267 | public float getLevel() | ||
268 | { | ||
269 | return AudioSystem.NOT_SPECIFIED; | ||
270 | } | ||
271 | |||
272 | |||
273 | |||
274 | protected void checkOpen() | ||
275 | { | ||
276 | if (getFormat() == null) | ||
277 | { | ||
278 | throw new IllegalStateException("format must be specified"); | ||
279 | } | ||
280 | if (getBufferSize() == AudioSystem.NOT_SPECIFIED) | ||
281 | { | ||
282 | setBufferSize(getDefaultBufferSize()); | ||
283 | } | ||
284 | } | ||
285 | |||
286 | |||
287 | |||
288 | protected int getDefaultBufferSize() | ||
289 | { | ||
290 | return DEFAULT_BUFFER_SIZE; | ||
291 | } | ||
292 | |||
293 | |||
294 | |||
295 | protected void notifyLineEvent(LineEvent.Type type) | ||
296 | { | ||
297 | notifyLineEvent(new LineEvent(this, type, getFramePosition())); | ||
298 | } | ||
299 | } | ||
300 | |||
301 | |||
302 | |||
303 | /*** TDataLine.java ***/ | ||
304 | |||