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author | Björn Stenberg <bjorn@haxx.se> | 2007-01-08 23:53:00 +0000 |
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committer | Björn Stenberg <bjorn@haxx.se> | 2007-01-08 23:53:00 +0000 |
commit | 7039a05147b8bbfc829babea1c65bd436450b505 (patch) | |
tree | 4ba555eb84ed97b72b0575034d5b0530a393713e /songdbj/org/tritonus/lowlevel/pogg/Buffer.java | |
parent | 6d4c19707ef95942e323cbdc89fbbfdbe45e7cc5 (diff) | |
download | rockbox-7039a05147b8bbfc829babea1c65bd436450b505.tar.gz rockbox-7039a05147b8bbfc829babea1c65bd436450b505.zip |
Splitting out songdbj
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@11953 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'songdbj/org/tritonus/lowlevel/pogg/Buffer.java')
-rw-r--r-- | songdbj/org/tritonus/lowlevel/pogg/Buffer.java | 284 |
1 files changed, 0 insertions, 284 deletions
diff --git a/songdbj/org/tritonus/lowlevel/pogg/Buffer.java b/songdbj/org/tritonus/lowlevel/pogg/Buffer.java deleted file mode 100644 index 6d94c37740..0000000000 --- a/songdbj/org/tritonus/lowlevel/pogg/Buffer.java +++ /dev/null | |||
@@ -1,284 +0,0 @@ | |||
1 | /* | ||
2 | * Buffer.java | ||
3 | * | ||
4 | * This file is part of Tritonus: http://www.tritonus.org/ | ||
5 | */ | ||
6 | |||
7 | /* | ||
8 | * Copyright (c) 2000 - 2005 by Matthias Pfisterer | ||
9 | * | ||
10 | * This program is free software; you can redistribute it and/or modify | ||
11 | * it under the terms of the GNU Library General Public License as published | ||
12 | * by the Free Software Foundation; either version 2 of the License, or | ||
13 | * (at your option) any later version. | ||
14 | * | ||
15 | * This program is distributed in the hope that it will be useful, | ||
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
18 | * GNU Library General Public License for more details. | ||
19 | * | ||
20 | * You should have received a copy of the GNU Library General Public | ||
21 | * License along with this program; if not, write to the Free Software | ||
22 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | ||
23 | */ | ||
24 | |||
25 | /* | ||
26 | |<--- this code is formatted to fit into 80 columns --->| | ||
27 | */ | ||
28 | |||
29 | package org.tritonus.lowlevel.pogg; | ||
30 | |||
31 | import java.io.UnsupportedEncodingException; | ||
32 | |||
33 | import org.tritonus.share.TDebug; | ||
34 | |||
35 | |||
36 | /** Wrapper for oggpack_buffer. | ||
37 | */ | ||
38 | public class Buffer | ||
39 | { | ||
40 | static | ||
41 | { | ||
42 | Ogg.loadNativeLibrary(); | ||
43 | if (TDebug.TraceOggNative) | ||
44 | { | ||
45 | setTrace(true); | ||
46 | } | ||
47 | } | ||
48 | |||
49 | |||
50 | /** | ||
51 | * Holds the pointer to oggpack_buffer | ||
52 | * for the native code. | ||
53 | * This must be long to be 64bit-clean. | ||
54 | */ | ||
55 | private long m_lNativeHandle; | ||
56 | |||
57 | |||
58 | |||
59 | public Buffer() | ||
60 | { | ||
61 | if (TDebug.TraceOggNative) { TDebug.out("Buffer.<init>(): begin"); } | ||
62 | int nReturn = malloc(); | ||
63 | if (nReturn < 0) | ||
64 | { | ||
65 | throw new RuntimeException("malloc of ogg_page failed"); | ||
66 | } | ||
67 | if (TDebug.TraceOggNative) { TDebug.out("Buffer.<init>(): end"); } | ||
68 | } | ||
69 | |||
70 | |||
71 | |||
72 | public void finalize() | ||
73 | { | ||
74 | // TODO: call free() | ||
75 | // call super.finalize() first or last? | ||
76 | // and introduce a flag if free() has already been called? | ||
77 | } | ||
78 | |||
79 | |||
80 | |||
81 | private native int malloc(); | ||
82 | public native void free(); | ||
83 | |||
84 | |||
85 | /** Calls oggpack_writeinit(). | ||
86 | */ | ||
87 | public native void writeInit(); | ||
88 | |||
89 | |||
90 | /** Calls oggpack_writetrunc(). | ||
91 | */ | ||
92 | public native void writeTrunc(int nBits); | ||
93 | |||
94 | |||
95 | /** Calls oggpack_writealign(). | ||
96 | */ | ||
97 | public native void writeAlign(); | ||
98 | |||
99 | |||
100 | /** Calls oggpack_writecopy(). | ||
101 | */ | ||
102 | public native void writeCopy(byte[] abSource, int nBits); | ||
103 | |||
104 | |||
105 | /** Calls oggpack_reset(). | ||
106 | */ | ||
107 | public native void reset(); | ||
108 | |||
109 | |||
110 | /** Calls oggpack_writeclear(). | ||
111 | */ | ||
112 | public native void writeClear(); | ||
113 | |||
114 | |||
115 | /** Calls oggpack_readinit(). | ||
116 | */ | ||
117 | public native void readInit(byte[] abBuffer, int nBytes); | ||
118 | |||
119 | |||
120 | /** Calls oggpack_write(). | ||
121 | */ | ||
122 | public native void write(int nValue, int nBits); | ||
123 | |||
124 | |||
125 | /** Calls oggpack_look(). | ||
126 | */ | ||
127 | public native int look(int nBits); | ||
128 | |||
129 | |||
130 | /** Calls oggpack_look1(). | ||
131 | */ | ||
132 | public native int look1(); | ||
133 | |||
134 | |||
135 | /** Calls oggpack_adv(). | ||
136 | */ | ||
137 | public native void adv(int nBits); | ||
138 | |||
139 | |||
140 | /** Calls oggpack_adv1(). | ||
141 | */ | ||
142 | public native void adv1(); | ||
143 | |||
144 | |||
145 | /** Calls oggpack_read(). | ||
146 | */ | ||
147 | public native int read(int nBits); | ||
148 | |||
149 | |||
150 | /** Calls oggpack_read1(). | ||
151 | */ | ||
152 | public native int read1(); | ||
153 | |||
154 | |||
155 | /** Calls oggpack_bytes(). | ||
156 | */ | ||
157 | public native int bytes(); | ||
158 | |||
159 | |||
160 | /** Calls oggpack_bits(). | ||
161 | */ | ||
162 | public native int bits(); | ||
163 | |||
164 | |||
165 | /** Calls oggpack_get_buffer(). | ||
166 | */ | ||
167 | public native byte[] getBuffer(); | ||
168 | |||
169 | |||
170 | /** Writes a string as UTF-8. | ||
171 | Note: no length coding and no end byte are written, | ||
172 | just the pure string! | ||
173 | */ | ||
174 | public void write(String str) | ||
175 | { | ||
176 | write(str, false); | ||
177 | } | ||
178 | |||
179 | |||
180 | /** Writes a string as UTF-8, including a length coding. | ||
181 | In front of the string, the length in bytes is written | ||
182 | as a 32 bit integer. No end byte is written. | ||
183 | */ | ||
184 | public void writeWithLength(String str) | ||
185 | { | ||
186 | write(str, true); | ||
187 | } | ||
188 | |||
189 | |||
190 | /** Writes a string as UTF-8, with or without a length coding. | ||
191 | If a length coding is requested, the length in (UTF8-)bytes is written | ||
192 | as a 32 bit integer in front of the string. | ||
193 | No end byte is written. | ||
194 | */ | ||
195 | private void write(String str, boolean bWithLength) | ||
196 | { | ||
197 | byte[] aBytes = null; | ||
198 | try | ||
199 | { | ||
200 | aBytes = str.getBytes("UTF-8"); | ||
201 | } | ||
202 | catch (UnsupportedEncodingException e) | ||
203 | { | ||
204 | if (TDebug.TraceAllExceptions) TDebug.out(e); | ||
205 | } | ||
206 | if (bWithLength) | ||
207 | { | ||
208 | write(aBytes.length, 32); | ||
209 | } | ||
210 | for (int i = 0; i < aBytes.length; i++) | ||
211 | { | ||
212 | write(aBytes[i], 8); | ||
213 | } | ||
214 | } | ||
215 | |||
216 | |||
217 | /** Reads a UTF-8 coded string with length coding. | ||
218 | It is expected that at the current read position, | ||
219 | there is a 32 bit integer containing the length in (UTF8-)bytes, | ||
220 | followed by the specified number of bytes in UTF-8 coding. | ||
221 | |||
222 | @return the string read from the buffer or null if an error occurs. | ||
223 | */ | ||
224 | public String readString() | ||
225 | { | ||
226 | int length = read(32); | ||
227 | if (length < 0) | ||
228 | { | ||
229 | return null; | ||
230 | } | ||
231 | return readString(length); | ||
232 | } | ||
233 | |||
234 | |||
235 | /** Reads a UTF-8 coded string without length coding. | ||
236 | It is expected that at the current read position, | ||
237 | there is string in UTF-8 coding. | ||
238 | |||
239 | @return the string read from the buffer or null if an error occurs. | ||
240 | */ | ||
241 | public String readString(int nLength) | ||
242 | { | ||
243 | byte[] aBytes = new byte[nLength]; | ||
244 | for (int i = 0; i < nLength; i++) | ||
245 | { | ||
246 | aBytes[i] = (byte) read(8); | ||
247 | } | ||
248 | String s = null; | ||
249 | try | ||
250 | { | ||
251 | s = new String(aBytes, "UTF-8"); | ||
252 | } | ||
253 | catch (UnsupportedEncodingException e) | ||
254 | { | ||
255 | if (TDebug.TraceAllExceptions) TDebug.out(e); | ||
256 | } | ||
257 | return s; | ||
258 | } | ||
259 | |||
260 | |||
261 | /** Reads a single bit. | ||
262 | */ | ||
263 | public boolean readFlag() | ||
264 | { | ||
265 | return (read(1) != 0); | ||
266 | } | ||
267 | |||
268 | private static native void setTrace(boolean bTrace); | ||
269 | |||
270 | // for debugging | ||
271 | public static void outBuffer(byte[] buffer) | ||
272 | { | ||
273 | String s = ""; | ||
274 | for (int i = 0; i < buffer.length; i++) | ||
275 | { | ||
276 | s += "" + buffer[i] + ", "; | ||
277 | } | ||
278 | TDebug.out("buffer: " + s); | ||
279 | } | ||
280 | } | ||
281 | |||
282 | |||
283 | |||
284 | /*** Buffer.java ***/ | ||