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authorPeter D'Hoye <peter.dhoye@gmail.com>2009-05-22 21:58:48 +0000
committerPeter D'Hoye <peter.dhoye@gmail.com>2009-05-22 21:58:48 +0000
commit513389b4c1bc8afe4b2dc9947c534bfeb105e3da (patch)
tree10e673b35651ac567fed2eda0c679c7ade64cbc6 /apps/plugins/pdbox/PDa/extra/OSC-client.h
parent95fa7f6a2ef466444fbe3fe87efc6d5db6b77b36 (diff)
downloadrockbox-513389b4c1bc8afe4b2dc9947c534bfeb105e3da.tar.gz
rockbox-513389b4c1bc8afe4b2dc9947c534bfeb105e3da.zip
Add FS #10214. Initial commit of the original PDa code for the GSoC Pure Data plugin project of Wincent Balin. Stripped some non-sourcefiles and added a rockbox readme that needs a bit more info from Wincent. Is added to CATEGORIES and viewers, but not yet to SUBDIRS (ie doesn't build yet)
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@21044 a1c6a512-1295-4272-9138-f99709370657
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1/*
2Written by Matt Wright, The Center for New Music and Audio Technologies,
3University of California, Berkeley. Copyright (c) 1996,97,98,99,2000,01,02,03
4The Regents of the University of California (Regents).
5
6Permission to use, copy, modify, distribute, and distribute modified versions
7of this software and its documentation without fee and without a signed
8licensing agreement, is hereby granted, provided that the above copyright
9notice, this paragraph and the following two paragraphs appear in all copies,
10modifications, and distributions.
11
12IN NO EVENT SHALL REGENTS BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT,
13SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS, ARISING
14OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF REGENTS HAS
15BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
16
17REGENTS SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
18THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19PURPOSE. THE SOFTWARE AND ACCOMPANYING DOCUMENTATION, IF ANY, PROVIDED
20HEREUNDER IS PROVIDED "AS IS". REGENTS HAS NO OBLIGATION TO PROVIDE
21MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
22*/
23
24/*
25
26 OSC-client.h: library for constructing OpenSoundControl messages.
27 Derived from SynthControl.h
28 Author: Matt Wright
29 Version 0.1: 6/13/97
30 Version 0.2: 7/21/2000: Support for type-tagged messages
31
32
33 General notes:
34
35 This library abstracts away the data format for the OpenSoundControl
36 protocol. Users of this library can construct OpenSoundControl packets
37 with a function call interface instead of knowing how to lay out the bits.
38
39 All issues of memory allocation are deferred to the user of this library.
40 There are two data structures that the user must allocate. The first
41 is the actual buffer that the message will be written into. This buffer
42 can be any size, but if it's too small there's a possibility that it
43 will become overfull. The other data structure is called an OSCbuf,
44 and it holds all the state used by the library as it's constructing
45 a buffer.
46
47 All procedures that have the possibility of an error condition return int,
48 with 0 indicating no error and nonzero indicating an error. The variable
49 OSC_errorMessage will be set to point to a string containing an error
50 message explaining what the problem is.
51
52*/
53
54
55
56/* The int4byte type has to be a 4-byte integer. You may have to
57 change this to long or something else on your system. */
58#ifdef __MWERKS__
59 /* In Metrowerks you can set ints to be 2 or 4 bytes on 68K, but long is
60 always 4 bytes */
61 typedef long int4byte;
62#else
63 typedef int int4byte;
64#endif
65
66/* OSC_timetag.h */
67
68 typedef struct {
69 int seconds;
70 int fraction;
71 } OSCTimeTag;
72
73OSCTimeTag OSCTT_Immediately(void);
74OSCTimeTag OSCTT_PlusSeconds(OSCTimeTag original, float secondsOffset);
75OSCTimeTag OSCTT_CurrentTime(void);
76
77
78
79/* The maximum depth of bundles within bundles within bundles within...
80 This is the size of a static array. If you exceed this limit you'll
81 get an error message. */
82#define MAX_BUNDLE_NESTING 32
83
84
85/* Don't ever manipulate the data in the OSCbuf struct directly. (It's
86 declared here in the header file only so your program will be able to
87 declare variables of type OSCbuf and have the right amount of memory
88 be allocated.) */
89
90typedef struct OSCbuf_struct {
91 char *buffer; /* The buffer to hold the OSC packet */
92 int size; /* Size of the buffer */
93 char *bufptr; /* Current position as we fill the buffer */
94 int state; /* State of partially-constructed message */
95 int4byte *thisMsgSize; /* Pointer to count field before
96 currently-being-written message */
97 int4byte *prevCounts[MAX_BUNDLE_NESTING];
98 /* Pointers to count field before each currently
99 open bundle */
100 int bundleDepth; /* How many sub-sub-bundles are we in now? */
101 char *typeStringPtr; /* This pointer advances through the type
102 tag string as you add arguments. */
103 int gettingFirstUntypedArg; /* nonzero if this message doesn't have
104 a type tag and we're waiting for the 1st arg */
105} OSCbuf;
106
107
108
109/* Initialize the given OSCbuf. The user of this module must pass in the
110 block of memory that this OSCbuf will use for a buffer, and the number of
111 bytes in that block. (It's the user's job to allocate the memory because
112 you do it differently in different systems.) */
113void OSC_initBuffer(OSCbuf *buf, int size, char *byteArray);
114
115
116/* Reset the given OSCbuf. Do this after you send out the contents of
117 the buffer and want to start writing new data into it. */
118void OSC_resetBuffer(OSCbuf *buf);
119
120
121/* Is the buffer empty? (I.e., would it be stupid to send the buffer
122 contents to the synth?) */
123int OSC_isBufferEmpty(OSCbuf *buf);
124
125
126/* How much space is left in the buffer? */
127int OSC_freeSpaceInBuffer(OSCbuf *buf);
128
129/* Does the buffer contain a valid OSC packet? (Returns nonzero if yes.) */
130int OSC_isBufferDone(OSCbuf *buf);
131
132/* When you're ready to send out the buffer (i.e., when OSC_isBufferDone()
133 returns true), call these two procedures to get the OSC packet that's been
134 assembled and its size in bytes. (And then call OSC_resetBuffer() if you
135 want to re-use this OSCbuf for the next packet.) */
136char *OSC_getPacket(OSCbuf *buf);
137int OSC_packetSize(OSCbuf *buf);
138
139
140
141/* Here's the basic model for building up OSC messages in an OSCbuf:
142
143 - Make sure the OSCbuf has been initialized with OSC_initBuffer().
144
145 - To open a bundle, call OSC_openBundle(). You can then write
146 messages or open new bundles within the bundle you opened.
147 Call OSC_closeBundle() to close the bundle. Note that a packet
148 does not have to have a bundle; it can instead consist of just a
149 single message.
150
151
152 - For each message you want to send:
153
154 - Call OSC_writeAddress() with the name of your message. (In
155 addition to writing your message name into the buffer, this
156 procedure will also leave space for the size count of this message.)
157
158 - Alternately, call OSC_writeAddressAndTypes() with the name of
159 your message and with a type string listing the types of all the
160 arguments you will be putting in this message.
161
162 - Now write each of the arguments into the buffer, by calling one of:
163 OSC_writeFloatArg()
164 OSC_writeFloatArgs()
165 OSC_writeIntArg()
166 OSC_writeStringArg()
167
168 - Now your message is complete; you can send out the buffer or you can
169 add another message to it.
170*/
171
172int OSC_openBundle(OSCbuf *buf, OSCTimeTag tt);
173int OSC_closeBundle(OSCbuf *buf);
174int OSC_closeAllBundles(OSCbuf *buf);
175
176int OSC_writeAddress(OSCbuf *buf, char *name);
177int OSC_writeAddressAndTypes(OSCbuf *buf, char *name, char *types);
178int OSC_writeFloatArg(OSCbuf *buf, float arg);
179int OSC_writeFloatArgs(OSCbuf *buf, int numFloats, float *args);
180int OSC_writeIntArg(OSCbuf *buf, int4byte arg);
181int OSC_writeStringArg(OSCbuf *buf, char *arg);
182
183extern char *OSC_errorMessage;
184
185/* How many bytes will be needed in the OSC format to hold the given
186 string? The length of the string, plus the null char, plus any padding
187 needed for 4-byte alignment. */
188int OSC_effectiveStringLength(char *string);
189/*
190Written by Matt Wright, The Center for New Music and Audio Technologies,
191University of California, Berkeley. Copyright (c) 1996,97,98,99,2000,01,02,03
192The Regents of the University of California (Regents).
193
194Permission to use, copy, modify, distribute, and distribute modified versions
195of this software and its documentation without fee and without a signed
196licensing agreement, is hereby granted, provided that the above copyright
197notice, this paragraph and the following two paragraphs appear in all copies,
198modifications, and distributions.
199
200IN NO EVENT SHALL REGENTS BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT,
201SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS, ARISING
202OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF REGENTS HAS
203BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
204
205REGENTS SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
206THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
207PURPOSE. THE SOFTWARE AND ACCOMPANYING DOCUMENTATION, IF ANY, PROVIDED
208HEREUNDER IS PROVIDED "AS IS". REGENTS HAS NO OBLIGATION TO PROVIDE
209MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
210*/
211
212/*
213
214 OSC-client.h: library for constructing OpenSoundControl messages.
215 Derived from SynthControl.h
216 Author: Matt Wright
217 Version 0.1: 6/13/97
218 Version 0.2: 7/21/2000: Support for type-tagged messages
219
220
221 General notes:
222
223 This library abstracts away the data format for the OpenSoundControl
224 protocol. Users of this library can construct OpenSoundControl packets
225 with a function call interface instead of knowing how to lay out the bits.
226
227 All issues of memory allocation are deferred to the user of this library.
228 There are two data structures that the user must allocate. The first
229 is the actual buffer that the message will be written into. This buffer
230 can be any size, but if it's too small there's a possibility that it
231 will become overfull. The other data structure is called an OSCbuf,
232 and it holds all the state used by the library as it's constructing
233 a buffer.
234
235 All procedures that have the possibility of an error condition return int,
236 with 0 indicating no error and nonzero indicating an error. The variable
237 OSC_errorMessage will be set to point to a string containing an error
238 message explaining what the problem is.
239
240*/
241
242
243
244/* The int4byte type has to be a 4-byte integer. You may have to
245 change this to long or something else on your system. */
246#ifdef __MWERKS__
247 /* In Metrowerks you can set ints to be 2 or 4 bytes on 68K, but long is
248 always 4 bytes */
249 typedef long int4byte;
250#else
251 typedef int int4byte;
252#endif
253
254/* OSC_timetag.h */
255
256 typedef struct {
257 int seconds;
258 int fraction;
259 } OSCTimeTag;
260
261OSCTimeTag OSCTT_Immediately(void);
262OSCTimeTag OSCTT_PlusSeconds(OSCTimeTag original, float secondsOffset);
263OSCTimeTag OSCTT_CurrentTime(void);
264
265
266
267/* The maximum depth of bundles within bundles within bundles within...
268 This is the size of a static array. If you exceed this limit you'll
269 get an error message. */
270#define MAX_BUNDLE_NESTING 32
271
272
273/* Don't ever manipulate the data in the OSCbuf struct directly. (It's
274 declared here in the header file only so your program will be able to
275 declare variables of type OSCbuf and have the right amount of memory
276 be allocated.) */
277
278typedef struct OSCbuf_struct {
279 char *buffer; /* The buffer to hold the OSC packet */
280 int size; /* Size of the buffer */
281 char *bufptr; /* Current position as we fill the buffer */
282 int state; /* State of partially-constructed message */
283 int4byte *thisMsgSize; /* Pointer to count field before
284 currently-being-written message */
285 int4byte *prevCounts[MAX_BUNDLE_NESTING];
286 /* Pointers to count field before each currently
287 open bundle */
288 int bundleDepth; /* How many sub-sub-bundles are we in now? */
289 char *typeStringPtr; /* This pointer advances through the type
290 tag string as you add arguments. */
291 int gettingFirstUntypedArg; /* nonzero if this message doesn't have
292 a type tag and we're waiting for the 1st arg */
293} OSCbuf;
294
295
296
297/* Initialize the given OSCbuf. The user of this module must pass in the
298 block of memory that this OSCbuf will use for a buffer, and the number of
299 bytes in that block. (It's the user's job to allocate the memory because
300 you do it differently in different systems.) */
301void OSC_initBuffer(OSCbuf *buf, int size, char *byteArray);
302
303
304/* Reset the given OSCbuf. Do this after you send out the contents of
305 the buffer and want to start writing new data into it. */
306void OSC_resetBuffer(OSCbuf *buf);
307
308
309/* Is the buffer empty? (I.e., would it be stupid to send the buffer
310 contents to the synth?) */
311int OSC_isBufferEmpty(OSCbuf *buf);
312
313
314/* How much space is left in the buffer? */
315int OSC_freeSpaceInBuffer(OSCbuf *buf);
316
317/* Does the buffer contain a valid OSC packet? (Returns nonzero if yes.) */
318int OSC_isBufferDone(OSCbuf *buf);
319
320/* When you're ready to send out the buffer (i.e., when OSC_isBufferDone()
321 returns true), call these two procedures to get the OSC packet that's been
322 assembled and its size in bytes. (And then call OSC_resetBuffer() if you
323 want to re-use this OSCbuf for the next packet.) */
324char *OSC_getPacket(OSCbuf *buf);
325int OSC_packetSize(OSCbuf *buf);
326
327
328
329/* Here's the basic model for building up OSC messages in an OSCbuf:
330
331 - Make sure the OSCbuf has been initialized with OSC_initBuffer().
332
333 - To open a bundle, call OSC_openBundle(). You can then write
334 messages or open new bundles within the bundle you opened.
335 Call OSC_closeBundle() to close the bundle. Note that a packet
336 does not have to have a bundle; it can instead consist of just a
337 single message.
338
339
340 - For each message you want to send:
341
342 - Call OSC_writeAddress() with the name of your message. (In
343 addition to writing your message name into the buffer, this
344 procedure will also leave space for the size count of this message.)
345
346 - Alternately, call OSC_writeAddressAndTypes() with the name of
347 your message and with a type string listing the types of all the
348 arguments you will be putting in this message.
349
350 - Now write each of the arguments into the buffer, by calling one of:
351 OSC_writeFloatArg()
352 OSC_writeFloatArgs()
353 OSC_writeIntArg()
354 OSC_writeStringArg()
355
356 - Now your message is complete; you can send out the buffer or you can
357 add another message to it.
358*/
359
360int OSC_openBundle(OSCbuf *buf, OSCTimeTag tt);
361int OSC_closeBundle(OSCbuf *buf);
362int OSC_closeAllBundles(OSCbuf *buf);
363
364int OSC_writeAddress(OSCbuf *buf, char *name);
365int OSC_writeAddressAndTypes(OSCbuf *buf, char *name, char *types);
366int OSC_writeFloatArg(OSCbuf *buf, float arg);
367int OSC_writeFloatArgs(OSCbuf *buf, int numFloats, float *args);
368int OSC_writeIntArg(OSCbuf *buf, int4byte arg);
369int OSC_writeStringArg(OSCbuf *buf, char *arg);
370
371extern char *OSC_errorMessage;
372
373/* How many bytes will be needed in the OSC format to hold the given
374 string? The length of the string, plus the null char, plus any padding
375 needed for 4-byte alignment. */
376int OSC_effectiveStringLength(char *string);