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packOSC.c
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/* packOSC is like sendOSC but outputs a list of floats which are the bytes making up the OSC packet. */
/* This allows for the separation of the protocol and its transport. */
/* Started by Martin Peach 20060403 */
/* 20060425 version independent of libOSC */
/* 20070620 added packOSC_path and packOSC_anything methods by zmoelnig */
/* 20160713 added 'm' typetag for MIDI messages */
/* packOSC.c makes extensive use of code from OSC-client.c and sendOSC.c */
/* as well as some from OSC-timetag.c. These files have the following header: */
/*
Written by Matt Wright, The Center for New Music and Audio Technologies,
University of California, Berkeley. Copyright (c) 1996,97,98,99,2000,01,02,03
The Regents of the University of California (Regents).
Permission to use, copy, modify, distribute, and distribute modified versions
of this software and its documentation without fee and without a signed
licensing agreement, is hereby granted, provided that the above copyright
notice, this paragraph and the following two paragraphs appear in all copies,
modifications, and distributions.
IN NO EVENT SHALL REGENTS BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT,
SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS, ARISING
OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF REGENTS HAS
BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
REGENTS SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE. THE SOFTWARE AND ACCOMPANYING DOCUMENTATION, IF ANY, PROVIDED
HEREUNDER IS PROVIDED "AS IS". REGENTS HAS NO OBLIGATION TO PROVIDE
MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
The OSC webpage is http://cnmat.cnmat.berkeley.edu/OpenSoundControl
*/
//define DEBUG
#define SC_BUFFER_SIZE 64000
#include "packingOSC.h"
/* This is from OSC-client.h :*/
/*
OSC-client.h: library for constructing OpenSoundControl messages.
Derived from SynthControl.h
Author: Matt Wright
Version 0.1: 6/13/97
Version 0.2: 7/21/2000: Support for type-tagged messages
General notes:
This library abstracts away the data format for the OpenSoundControl
protocol. Users of this library can construct OpenSoundControl packets
with a function call interface instead of knowing how to lay out the bits.
All issues of memory allocation are deferred to the user of this library.
There are two data structures that the user must allocate. The first
is the actual buffer that the message will be written into. This buffer
can be any size, but if it's too small there's a possibility that it
will become overfull. The other data structure is called an OSCbuf,
and it holds all the state used by the library as it's constructing
a buffer.
All procedures that have the possibility of an error condition return int,
with 0 indicating no error and nonzero indicating an error. The variable
OSC_errorMessage will be set to point to a string containing an error
message explaining what the problem is.
*/
/*
OSC_timeTag.h: library for manipulating OSC time tags
Matt Wright, 5/29/97
Time tags in OSC have the same format as in NTP: 64 bit fixed point, with the
top 32 bits giving number of seconds sinve midnight 1/1/1900 and the bottom
32 bits giving fractional parts of a second. We represent this by an 8-byte
unsigned long if possible, or else a struct.
NB: On many architectures with 8-byte ints, it's illegal (like maybe a bus error)
to dereference a pointer to an 8 byte int that's not 8-byte aligned.
*/
/* Return the time tag 0x0000000000000001, indicating to the receiving device
that it should process the message immediately. */
static OSCTimeTag OSCTT_Immediately(void);
static OSCTimeTag OSCTT_Infinite(void);
static OSCTimeTag OSCTT_CurrentTimePlusOffset(uint32_t offset);
static OSCTimeTag OSCTT_CurrentPdTimePlusOffset(uint32_t offset);
/* these are globals so other packOSCs will be in lockstep */
OSCTimeTag packOSCStartTimeTag;
double packOSCLogicalStartTime;
int packOSCs;
/* packOSCLogicalStartTime is Pd's count of DSP ticks. Use clock_gettimesince() to measure intervals in milliseconds from here */
/* Don't ever manipulate the data in the OSCbuf struct directly. (It's
declared here in the header file only so your program will be able to
declare variables of type OSCbuf and have the right amount of memory
be allocated.) */
typedef struct OSCbuf_struct
{
char *buffer; /* The buffer to hold the OSC packet */
size_t size; /* Size of the buffer */
char *bufptr; /* Current position as we fill the buffer */
int state; /* State of partially-constructed message */
uint32_t *thisMsgSize; /* Pointer to count field before */
/* currently-being-written message */
uint32_t *prevCounts[MAX_BUNDLE_NESTING]; /* Pointers to count */
/* field before each currently open bundle */
int bundleDepth; /* How many sub-sub-bundles are we in now? */
char *typeStringPtr; /* This pointer advances through the type */
/* tag string as you add arguments. */
int gettingFirstUntypedArg; /* nonzero if this message doesn't have */
/* a type tag and we're waiting for the 1st arg */
} OSCbuf;
typedef struct
{
enum {INT_osc, FLOAT_osc, STRING_osc, BLOB_osc, NOTYPE_osc} type;
union
{
int i;
float f;
char *s;
} datum;
} typedArg;
/* Here are the possible values of the state field: */
#define EMPTY 0 /* Nothing written to packet yet */
#define ONE_MSG_ARGS 1 /* Packet has a single message; gathering arguments */
#define NEED_COUNT 2 /* Just opened a bundle; must write message name or */
/* open another bundle */
#define GET_ARGS 3 /* Getting arguments to a message. If we see a message */
/* name or a bundle open/close then the current message */
/* will end. */
#define DONE 4 /* All open bundles have been closed, so can't write */
/* anything else */
static int OSC_strlen(char *s);
static int OSC_padString(char *dest, char *str);
static int OSC_padStringWithAnExtraStupidComma(char *dest, char *str);
static int OSC_WriteStringPadding(char *dest, int i);
static int OSC_WriteBlobPadding(char *dest, int i);
static int CheckTypeTag(OSCbuf *buf, char expectedType);
/* Initialize the given OSCbuf. The user of this module must pass in the
block of memory that this OSCbuf will use for a buffer, and the number of
bytes in that block. (It's the user's job to allocate the memory because
you do it differently in different systems.) */
static void OSC_initBuffer(OSCbuf *buf, size_t size, char *byteArray);
/* Reset the given OSCbuf. Do this after you send out the contents of
the buffer and want to start writing new data into it. */
static void OSC_resetBuffer(OSCbuf *buf);
/* Is the buffer empty? (I.e., would it be stupid to send the buffer
contents to the synth?) */
static int OSC_isBufferEmpty(OSCbuf *buf);
/* How much space is left in the buffer? */
static size_t OSC_freeSpaceInBuffer(OSCbuf *buf);
/* Does the buffer contain a valid OSC packet? (Returns nonzero if yes.) */
static int OSC_isBufferDone(OSCbuf *buf);
/* When you're ready to send out the buffer (i.e., when OSC_isBufferDone()
returns true), call these two procedures to get the OSC packet that's been
assembled and its size in bytes. (And then call OSC_resetBuffer() if you
want to re-use this OSCbuf for the next packet.) */
static char *OSC_getPacket(OSCbuf *buf);
static int OSC_packetSize(OSCbuf *buf);
static int OSC_CheckOverflow(OSCbuf *buf, size_t bytesNeeded);
/* Here's the basic model for building up OSC messages in an OSCbuf:
- Make sure the OSCbuf has been initialized with OSC_initBuffer().
- To open a bundle, call OSC_openBundle(). You can then write
messages or open new bundles within the bundle you opened.
Call OSC_closeBundle() to close the bundle. Note that a packet
does not have to have a bundle; it can instead consist of just a
single message.
- For each message you want to send:
- Call OSC_writeAddress() with the name of your message. (In
addition to writing your message name into the buffer, this
procedure will also leave space for the size count of this message.)
- Alternately, call OSC_writeAddressAndTypes() with the name of
your message and with a type string listing the types of all the
arguments you will be putting in this message.
- Now write each of the arguments into the buffer, by calling one of:
OSC_writeFloatArg()
OSC_writeIntArg()
OSC_writeStringArg()
OSC_writeNullArg()
- Now your message is complete; you can send out the buffer or you can
add another message to it.
*/
static int OSC_openBundle(OSCbuf *buf, OSCTimeTag tt);
static int OSC_closeBundle(OSCbuf *buf);
static int OSC_writeAddress(OSCbuf *buf, char *name);
static int OSC_writeAddressAndTypes(OSCbuf *buf, char *name, char *types);
static int OSC_writeFloatArg(OSCbuf *buf, float arg);
static int OSC_writeIntArg(OSCbuf *buf, uint32_t arg);
static int OSC_writeBlobArg(OSCbuf *buf, typedArg *arg, size_t nArgs);
static int OSC_writeStringArg(OSCbuf *buf, char *arg);
static int OSC_writeNullArg(OSCbuf *buf, char type);
/* How many bytes will be needed in the OSC format to hold the given
string? The length of the string, plus the null char, plus any padding
needed for 4-byte alignment. */
static int OSC_effectiveStringLength(char *string);
static t_class *packOSC_class;
typedef struct _packOSC
{
t_object x_obj;
int x_typetags; /* typetag flag */
int x_timeTagOffset;
int x_bundle; /* bundle open flag */
OSCbuf x_oscbuf[1]; /* OSCbuffer */
t_outlet *x_bdpthout; /* bundle-depth floatoutlet */
t_outlet *x_listout; /* OSC packet list ouput */
size_t x_buflength; /* number of elements in x_bufferForOSCbuf and x_bufferForOSClist */
char *x_bufferForOSCbuf; /*[SC_BUFFER_SIZE];*/
t_atom *x_bufferForOSClist; /*[SC_BUFFER_SIZE];*/
char *x_prefix;
int x_reentry_count;
int x_use_pd_time;
} t_packOSC;
static void *packOSC_new(void);
static void packOSC_path(t_packOSC *x, t_symbol*s);
static void packOSC_openbundle(t_packOSC *x);
static void packOSC_closebundle(t_packOSC *x);
static void packOSC_settypetags(t_packOSC *x, t_floatarg f);
static void packOSC_setbufsize(t_packOSC *x, t_floatarg f);
static void packOSC_setTimeTagOffset(t_packOSC *x, t_floatarg f);
static void packOSC_sendtyped(t_packOSC *x, t_symbol *s, int argc, t_atom *argv);
static void packOSC_send_type_forced(t_packOSC *x, t_symbol *s, int argc, t_atom *argv);
static void packOSC_send(t_packOSC *x, t_symbol *s, int argc, t_atom *argv);
static void packOSC_anything(t_packOSC *x, t_symbol *s, int argc, t_atom *argv);
static void packOSC_free(t_packOSC *x);
void packOSC_setup(void);
static typedArg packOSC_parseatom(t_atom *a, t_packOSC *x);
static typedArg packOSC_packMIDI(t_atom *a, t_packOSC *x);
static typedArg packOSC_forceatom(t_atom *a, char ctype, t_packOSC *x);
static typedArg packOSC_blob(t_atom *a, t_packOSC *x);
static int packOSC_writetypedmessage(t_packOSC *x, OSCbuf *buf, char *messageName, int numArgs, typedArg *args, char *typeStr);
static int packOSC_writemessage(t_packOSC *x, OSCbuf *buf, char *messageName, int numArgs, typedArg *args);
static void packOSC_sendbuffer(t_packOSC *x);
static void *packOSC_new(void)
{
double delta_ms;
t_packOSC *x = (t_packOSC *)pd_new(packOSC_class);
x->x_typetags = 1; /* set typetags to 1 by default */
x->x_bundle = 0; /* bundle is closed */
x->x_buflength = SC_BUFFER_SIZE;
x->x_bufferForOSCbuf = (char *)getbytes(sizeof(char)*x->x_buflength);
if(x->x_bufferForOSCbuf == NULL)
{
pd_error(x, "packOSC: unable to allocate %lu bytes for x_bufferForOSCbuf", (long)(sizeof(char)*x->x_buflength));
goto fail;
}
x->x_bufferForOSClist = (t_atom *)getbytes(sizeof(t_atom)*x->x_buflength);
if(x->x_bufferForOSClist == NULL)
{
pd_error(x, "packOSC: unable to allocate %lu bytes for x_bufferForOSClist", (long)(sizeof(t_atom)*x->x_buflength));
goto fail;
}
if (x->x_oscbuf != NULL)
OSC_initBuffer(x->x_oscbuf, x->x_buflength, x->x_bufferForOSCbuf);
x->x_listout = outlet_new(&x->x_obj, &s_list);
x->x_bdpthout = outlet_new(&x->x_obj, &s_float);
x->x_timeTagOffset = -1; /* immediately */
x->x_reentry_count = 0;
x->x_use_pd_time = 1; /* TODO set this somehwere else */
if (0 == packOSCLogicalStartTime)
{
packOSCLogicalStartTime = clock_getlogicaltime();
packOSCStartTimeTag = OSCTT_CurrentTimePlusOffset(0L);
}
delta_ms = clock_gettimesince(packOSCLogicalStartTime);
packOSCs++;
post("packOSC[%d]: delta_ms %lf timetag: %ldsec %ld\n", packOSCs, delta_ms, packOSCStartTimeTag.seconds, packOSCStartTimeTag.fraction);
return (x);
fail:
if(x->x_bufferForOSCbuf != NULL) freebytes(x->x_bufferForOSCbuf, (long)(sizeof(char)*x->x_buflength));
if(x->x_bufferForOSClist != NULL) freebytes(x->x_bufferForOSClist, (long)(sizeof(char)*x->x_buflength));
return NULL;
}
static void packOSC_path(t_packOSC *x, t_symbol*s)
{
/* Set a default prefix to the OSC path */
if(s == gensym(""))
{
x->x_prefix = 0;
return;
}
if ((*s->s_name) != '/')
{
pd_error(x, "packOSC: bad path: '%s'", s->s_name);
return;
}
x->x_prefix = s->s_name;
}
static void packOSC_openbundle(t_packOSC *x)
{
int result;
t_float bundledepth=(t_float)x->x_oscbuf->bundleDepth;
if (x->x_timeTagOffset == -1)
result = OSC_openBundle(x->x_oscbuf, OSCTT_Immediately());
else if (x->x_use_pd_time)
result = OSC_openBundle(x->x_oscbuf, OSCTT_CurrentPdTimePlusOffset((uint32_t)x->x_timeTagOffset));
else
result = OSC_openBundle(x->x_oscbuf, OSCTT_CurrentTimePlusOffset((uint32_t)x->x_timeTagOffset));
if (result != 0)
{ /* reset the buffer */
OSC_initBuffer(x->x_oscbuf, x->x_buflength, x->x_bufferForOSCbuf);
x->x_bundle = 0;
}
else x->x_bundle = 1;
outlet_float(x->x_bdpthout, bundledepth);
}
static void packOSC_closebundle(t_packOSC *x)
{
t_float bundledepth=(t_float)x->x_oscbuf->bundleDepth;
if (OSC_closeBundle(x->x_oscbuf))
{
pd_error(x, "packOSC: Problem closing bundle.");
return;
}
outlet_float(x->x_bdpthout, bundledepth);
/* in bundle mode we send when bundle is closed */
if((!OSC_isBufferEmpty(x->x_oscbuf)) && OSC_isBufferDone(x->x_oscbuf))
{
x->x_bundle = 0; /* call this before _sendbuffer() to be ready for recursive calls */
packOSC_sendbuffer(x);
return;
}
}
static void packOSC_settypetags(t_packOSC *x, t_floatarg f)
{
x->x_typetags = (f != 0)?1:0;
post("packOSC: setting typetags %d", x->x_typetags);
}
static void packOSC_setbufsize(t_packOSC *x, t_floatarg f)
{
if (x->x_bufferForOSCbuf != NULL) freebytes((void *)x->x_bufferForOSCbuf, sizeof(char)*x->x_buflength);
if (x->x_bufferForOSClist != NULL) freebytes((void *)x->x_bufferForOSClist, sizeof(t_atom)*x->x_buflength);
post("packOSC: bufsize arg is %f (%lu)", f, (long)f);
x->x_buflength = (long)f;
x->x_bufferForOSCbuf = (char *)getbytes(sizeof(char)*x->x_buflength);
if(x->x_bufferForOSCbuf == NULL)
pd_error(x, "packOSC unable to allocate %lu bytes for x_bufferForOSCbuf", (long)(sizeof(char)*x->x_buflength));
x->x_bufferForOSClist = (t_atom *)getbytes(sizeof(t_atom)*x->x_buflength);
if(x->x_bufferForOSClist == NULL)
pd_error(x, "packOSC unable to allocate %lu bytes for x_bufferForOSClist", (long)(sizeof(t_atom)*x->x_buflength));
OSC_initBuffer(x->x_oscbuf, x->x_buflength, x->x_bufferForOSCbuf);
post("packOSC: bufsize is now %d",x->x_buflength);
}
static void packOSC_setTimeTagOffset(t_packOSC *x, t_floatarg f)
{
x->x_timeTagOffset = (int)f;
}
/* this is the real and only sending routine now, for both typed and */
/* undtyped mode. */
static void packOSC_sendtyped(t_packOSC *x, t_symbol *s, int argc, t_atom *argv)
{
char messageName[MAXPDSTRING];
unsigned int nTypeTags = 0, typeStrTotalSize = 0;
unsigned int argsSize = sizeof(typedArg)*argc;
char* typeStr = NULL; /* might not be used */
typedArg* args = (typedArg*)getbytes(argsSize);
unsigned int i, nTagsWithData, nArgs, blobCount;
unsigned int m, tagIndex, typedArgIndex, argvIndex;
char c;
#ifdef DEBUG
printf("*** packOSC_sendtyped bundle %d reentry %d\n", x->x_bundle, x->x_reentry_count);
#endif
x->x_reentry_count++;
if (args == NULL)
{
pd_error(x, "packOSC: unable to allocate %lu bytes for args", (long)argsSize);
return;
}
messageName[0] = '\0'; /* empty */
if(x->x_prefix) /* if there is a prefix, prefix it to the path */
{
size_t len = strlen(x->x_prefix);
if(len >= MAXPDSTRING)
len = MAXPDSTRING-1;
strncpy(messageName, x->x_prefix, MAXPDSTRING);
atom_string(&argv[0], messageName+len, (unsigned)(MAXPDSTRING-len));
}
else
atom_string(&argv[0], messageName, MAXPDSTRING); /* the OSC address string */
if (x->x_typetags & 2)
{ /* second arg is typestring */
/* we need to find out how long the type string is before we copy it*/
nTypeTags = (unsigned int)strlen(atom_getsymbol(&argv[1])->s_name);
typeStrTotalSize = nTypeTags + 2;
typeStr = (char*)getzbytes(typeStrTotalSize);
if (typeStr == NULL)
{
pd_error(x, "packOSC: unable to allocate %u bytes for typeStr", nTypeTags);
return;
}
typeStr[0] = ',';
atom_string(&argv[1], &typeStr[1], typeStrTotalSize);
#ifdef DEBUG
printf("packOSC_sendtyped typeStr: %s, nTypeTags %u\n", typeStr, nTypeTags);
#endif
nArgs = argc-2;
for (m = nTagsWithData = blobCount = 0; m < nTypeTags; ++m)
{
#ifdef DEBUG
printf("packOSC_sendtyped typeStr[%d] %c\n", m+1, typeStr[m+1]);
#endif
if ((c = typeStr[m+1]) == 0) break;
if (!(c == 'T' || c == 'F' || c == 'N' || c == 'I'))
{
++nTagsWithData; /* anything other than these tags have at least one data byte */
if (c == 'm') nTagsWithData += 3; // MIDI tag should have four data bytes
/*
OSC-blob
An int32 size count, followed by that many 8-bit bytes of arbitrary binary data,
followed by 0-3 additional zero bytes to make the total number of bits a multiple of 32.
*/
if (c == 'b') blobCount++; /* b probably has more than one byte, so set a flag */
}
}
if (((blobCount == 0)&&(nTagsWithData != nArgs)) || ((blobCount != 0)&&(nTagsWithData > nArgs)))
{
pd_error(x, "packOSC: Tags count %d doesn't match argument count %d", nTagsWithData, nArgs);
goto cleanup;
}
if (blobCount > 1)
{
pd_error(x, "packOSC: Only one blob per packet at the moment...");
goto cleanup;
}
for (tagIndex = typedArgIndex = 0, argvIndex = 2; tagIndex < m; ++tagIndex) /* m is the number of tags */
{
c = typeStr[tagIndex+1];
if (c == 'b')
{ /* A blob has to be the last item, until we get more elaborate. */
if (tagIndex != m-1)
{
pd_error(x, "packOSC: Since I don't know how big the blob is, Blob must be the last item in the list");
goto cleanup;
}
/* Pack all the remaining arguments as a blob */
for (; typedArgIndex < nArgs; ++typedArgIndex, ++argvIndex)
{
#ifdef DEBUG
printf("packOSC_blob %d:\n", nArgs);
#endif
args[typedArgIndex] = packOSC_blob(&argv[argvIndex], x);
/* Make sure it was blobbable */
if (args[typedArgIndex].type != BLOB_osc) goto cleanup;
}
}
else if (!(c == 'T' || c == 'F' || c == 'N' || c == 'I')) /* not no data */
{
if (c == 'm')
{ // pack the next four arguments into one int
args[typedArgIndex++] = packOSC_packMIDI(&argv[argvIndex], x);
argvIndex += 4;
}
else args[typedArgIndex++] = packOSC_forceatom(&argv[argvIndex++], c, x);
}
}
//if(packOSC_writetypedmessage(x, x->x_oscbuf, messageName, nArgs, args, typeStr))
if(packOSC_writetypedmessage(x, x->x_oscbuf, messageName, typedArgIndex, args, typeStr))
{
pd_error(x, "packOSC: usage error, packOSC_writetypedmessage failed.");
goto cleanup;
}
}
else
{
for (i = 0; i < (unsigned)(argc-1); i++)
{
args[i] = packOSC_parseatom(&argv[i+1], x);
#ifdef DEBUG
switch (args[i].type)
{
case INT_osc:
printf("packOSC: cell-cont: %d\n", args[i].datum.i);
break;
case FLOAT_osc:
printf("packOSC: cell-cont: %f\n", args[i].datum.f);
break;
case STRING_osc:
printf("packOSC: cell-cont: %s\n", args[i].datum.s);
break;
case BLOB_osc:
printf("packOSC: blob\n");
break;
case NOTYPE_osc:
printf("packOSC: unknown type\n");
break;
}
printf("packOSC: type-id: %d\n", args[i].type);
#endif
}
if(packOSC_writemessage(x, x->x_oscbuf, messageName, i, args))
{
pd_error(x, "packOSC: usage error, packOSC_writemessage failed.");
goto cleanup;
}
}
if(!x->x_bundle)
{
packOSC_sendbuffer(x);
}
cleanup:
if (typeStr != NULL) freebytes(typeStr, typeStrTotalSize);
if (args != NULL) freebytes(args, argsSize);
x->x_reentry_count--;
}
static void packOSC_send_type_forced(t_packOSC *x, t_symbol *s, int argc, t_atom *argv)
{ /* typetags are the argument following the OSC path */
x->x_typetags |= 2;/* tell packOSC_sendtyped to use the specified typetags... */
packOSC_sendtyped(x, s, argc, argv);
x->x_typetags &= ~2;/* ...this time only */
}
static void packOSC_send(t_packOSC *x, t_symbol *s, int argc, t_atom *argv)
{
if(!argc)
{
pd_error(x, "packOSC: not sending empty message.");
return;
}
packOSC_sendtyped(x, s, argc, argv);
}
static void packOSC_anything(t_packOSC *x, t_symbol *s, int argc, t_atom *argv)
{
/* If the message starts with '/', assume it's an OSC path and send it */
t_atom*ap = 0;
if ((*s->s_name)!='/')
{
pd_error(x, "packOSC: bad path: '%s'", s->s_name);
return;
}
ap = (t_atom*)getbytes((argc+1)*sizeof(t_atom));
SETSYMBOL(ap, s);
memcpy(ap+1, argv, argc * sizeof(t_atom));
packOSC_send(x, gensym("send"), argc+1, ap);
freebytes(ap, (argc+1)*sizeof(t_atom));
}
static void packOSC_free(t_packOSC *x)
{
if (x->x_bufferForOSCbuf != NULL) freebytes((void *)x->x_bufferForOSCbuf, sizeof(char)*x->x_buflength);
if (x->x_bufferForOSClist != NULL) freebytes((void *)x->x_bufferForOSClist, sizeof(t_atom)*x->x_buflength);
}
void packOSC_setup(void)
{
packOSC_class = class_new(gensym("packOSC"), (t_newmethod)packOSC_new,
(t_method)packOSC_free,
sizeof(t_packOSC), 0, A_DEFFLOAT, 0);
class_addmethod(packOSC_class, (t_method)packOSC_path,
gensym("prefix"), A_DEFSYM, 0);
class_addmethod(packOSC_class, (t_method)packOSC_settypetags,
gensym("typetags"), A_DEFFLOAT, 0);
class_addmethod(packOSC_class, (t_method)packOSC_setbufsize,
gensym("bufsize"), A_DEFFLOAT, 0);
class_addmethod(packOSC_class, (t_method)packOSC_setTimeTagOffset,
gensym("timetagoffset"), A_DEFFLOAT, 0);
class_addmethod(packOSC_class, (t_method)packOSC_send,
gensym("send"), A_GIMME, 0);
class_addmethod(packOSC_class, (t_method)packOSC_send,
gensym("senduntyped"), A_GIMME, 0);
class_addmethod(packOSC_class, (t_method)packOSC_send_type_forced,
gensym("sendtyped"), A_GIMME, 0);
class_addmethod(packOSC_class, (t_method)packOSC_openbundle,
gensym("["), 0, 0);
class_addmethod(packOSC_class, (t_method)packOSC_closebundle,
gensym("]"), 0, 0);
class_addanything(packOSC_class, (t_method)packOSC_anything);
}
static typedArg packOSC_parseatom(t_atom *a, t_packOSC *x)
{
typedArg returnVal;
t_float f;
int i;
t_symbol s;
char buf[MAXPDSTRING];
atom_string(a, buf, MAXPDSTRING);
#ifdef DEBUG
printf("packOSC: atom type %d (%s)\n", a->a_type, buf);
#endif
/* It might be an int, a float, or a string */
switch (a->a_type)
{
case A_FLOAT:
f = atom_getfloat(a);
i = atom_getint(a);
if (f == (t_float)i)
{ /* assume that if the int and float are the same, it's an int */
returnVal.type = INT_osc;
returnVal.datum.i = i;
}
else
{
returnVal.type = FLOAT_osc;
returnVal.datum.f = f;
}
return returnVal;
case A_SYMBOL:
s = *atom_getsymbol(a);
returnVal.type = STRING_osc;
returnVal.datum.s = s.s_name;
return returnVal;
default:
atom_string(a, buf, MAXPDSTRING);
pd_error(x, "packOSC: atom type %d not implemented (%s)", a->a_type, buf);
returnVal.type = NOTYPE_osc;
returnVal.datum.s = NULL;
return returnVal;
}
}
static typedArg packOSC_blob(t_atom *a, t_packOSC *x)
{ /* ctype is one of i,f,s,T,F,N,I*/
typedArg returnVal;
t_float f;
int i;
returnVal.type = NOTYPE_osc;
returnVal.datum.s = NULL;
/* the atoms must all be bytesl */
if(a->a_type != A_FLOAT)
{
pd_error(x, "packOSC_blob: all values must be floats");
return returnVal;
}
f = atom_getfloat(a);
i = (int)f;
if (i != f)
{
pd_error(x, "packOSC_blob: all values must be whole numbers");
return returnVal;
}
if ((i < -128) || (i > 255))
{
pd_error(x, "packOSC_blob: all values must be bytes");
return returnVal;
}
returnVal.type = BLOB_osc;
returnVal.datum.i = i;
return returnVal;
}
static typedArg packOSC_packMIDI(t_atom *a, t_packOSC *x)
{ /* pack four bytes at a into one int32 */
int i;
typedArg returnVal;
int m[4];
for (i = 0; i < 4; ++i, ++a)
{
#ifdef DEBUG
atom_string(a, buf, MAXPDSTRING);
printf("packOSC: atom type %d (%s)\n", a->a_type, buf);
#endif
if ((a->a_type != A_FLOAT))
{
pd_error(x, "packOSC: MIDI parameters must be floats");
returnVal.type = NOTYPE_osc;
returnVal.datum.s = NULL;
return returnVal;
}
m[i] = atom_getint(a);
#ifdef DEBUG
printf("packOSC_packMIDI: float to integer %d\n", m[i]);
#endif
if ((i < 2) && (m[i] != (m[i] & 0x0FF)))
{
pd_error(x, "packOSC: MIDI parameters must be less than 256");
returnVal.type = NOTYPE_osc;
returnVal.datum.s = NULL;
return returnVal;
}
else if ((i > 1) && (m[i] != (m[i] & 0x07F)))
{
pd_error(x, "packOSC: MIDI parameters must be less than 128");
returnVal.type = NOTYPE_osc;
returnVal.datum.s = NULL;
return returnVal;
}
}
returnVal.type = INT_osc;
returnVal.datum.i = (m[0]<<24) + (m[1]<<16) + (m[2]<<8) + m[3];
return returnVal;
}
static typedArg packOSC_forceatom(t_atom *a, char ctype, t_packOSC *x)
{ /* ctype is one of i,f,s,T,F,N,I*/
typedArg returnVal;
t_float f;
int i;
t_symbol s;
static char buf[MAXPDSTRING];
#ifdef DEBUG
atom_string(a, buf, MAXPDSTRING);
printf("packOSC: atom type %d (%s)\n", a->a_type, buf);
#endif
/* the atom might be a float, or a symbol */
switch (a->a_type)
{
case A_FLOAT:
switch (ctype)
{
case 'i':
returnVal.type = INT_osc;
returnVal.datum.i = atom_getint(a);
#ifdef DEBUG
printf("packOSC_forceatom: float to integer %d\n", returnVal.datum.i);
#endif
break;
case 'f':
returnVal.type = FLOAT_osc;
returnVal.datum.f = atom_getfloat(a);
#ifdef DEBUG
printf("packOSC_forceatom: float to float %f\n", returnVal.datum.f);
#endif
break;
case 's':
f = atom_getfloat(a);
sprintf(buf, "%f", f);
returnVal.type = STRING_osc;
returnVal.datum.s = buf;
#ifdef DEBUG
printf("packOSC_forceatom: float to string %s\n", returnVal.datum.s);
#endif
break;
default:
post("packOSC: unknown OSC type %c", ctype);
returnVal.type = NOTYPE_osc;
returnVal.datum.s = NULL;
break;
}
break;
case A_SYMBOL:
s = *atom_getsymbol(a);
switch (ctype)
{
case 'i':
i = atoi(s.s_name);
returnVal.type = INT_osc;
returnVal.datum.i = i;
#ifdef DEBUG
printf("packOSC_forceatom: symbol to integer %d\n", returnVal.datum.i);
#endif
break;
case 'f':
f = atof(s.s_name);
returnVal.type = FLOAT_osc;
returnVal.datum.f = f;
#ifdef DEBUG
printf("packOSC_forceatom: symbol to float %f\n", returnVal.datum.f);
#endif
break;
case 's':
returnVal.type = STRING_osc;
returnVal.datum.s = s.s_name;
#ifdef DEBUG
printf("packOSC_forceatom: symbol to string %s\n", returnVal.datum.s);
#endif
break;
default:
post("packOSC: unknown OSC type %c", ctype);
returnVal.type = NOTYPE_osc;
returnVal.datum.s = NULL;
break;
}
break;
default:
atom_string(a, buf, MAXPDSTRING);
pd_error(x, "packOSC: atom type %d not implemented (%s)", a->a_type, buf);
returnVal.type = NOTYPE_osc;
returnVal.datum.s = NULL;
break;
}
return returnVal;
}
static int packOSC_writetypedmessage
(t_packOSC *x, OSCbuf *buf, char *messageName, int numArgs, typedArg *args, char *typeStr)
{
int i, j, returnVal;
#ifdef DEBUG
printf("packOSC_writetypedmessage: messageName %p (%s) typeStr %p (%s)\n",
messageName, messageName, typeStr, typeStr);
#endif
returnVal = OSC_writeAddressAndTypes(buf, messageName, typeStr);
if (returnVal)
{
pd_error(x, "packOSC: Problem writing address. (%d)", returnVal);
return returnVal;
}
for (j = i = 0; (typeStr[i+1]!= 0) || (j < numArgs); j++, i++)
{
while (typeStr[i+1] == 'T' || typeStr[i+1] == 'F' || typeStr[i+1] == 'I' || typeStr[i+1] == 'N')
{
#ifdef DEBUG
printf("packOSC_writetypedmessage: NULL [%c]\n", typeStr[i+1]);
#endif
returnVal = OSC_writeNullArg(buf, typeStr[i+1]);
++i;
}
if (j < numArgs)
{
switch (args[j].type)
{
case INT_osc:
#ifdef DEBUG
printf("packOSC_writetypedmessage: int [%d]\n", args[j].datum.i);
#endif
returnVal = OSC_writeIntArg(buf, args[j].datum.i);
break;
case FLOAT_osc:
#ifdef DEBUG
printf("packOSC_writetypedmessage: float [%f]\n", args[j].datum.f);
#endif
returnVal = OSC_writeFloatArg(buf, args[j].datum.f);
break;
case STRING_osc:
#ifdef DEBUG
printf("packOSC_writetypedmessage: string [%s]\n", args[j].datum.s);
#endif
returnVal = OSC_writeStringArg(buf, args[j].datum.s);
break;
case BLOB_osc:
/* write all the blob elements at once */
#ifdef DEBUG
printf("packOSC_writetypedmessage calling OSC_writeBlobArg\n");
#endif
return OSC_writeBlobArg(buf, &args[j], numArgs-j);
default:
break; /* types with no data */
}
}
}
return returnVal;
}
static int packOSC_writemessage(t_packOSC *x, OSCbuf *buf, char *messageName, int numArgs, typedArg *args)
{
int j, returnVal = 0, numTags;
#ifdef DEBUG
printf("packOSC_writemessage buf %p bufptr %p messageName %s %d args typetags %d\n", buf, buf->bufptr, messageName, numArgs, x->x_typetags);
#endif
if (!x->x_typetags)
{
#ifdef DEBUG
printf("packOSC_writemessage calling OSC_writeAddress with x->x_typetags %d\n", x->x_typetags);
#endif
returnVal = OSC_writeAddress(buf, messageName);
if (returnVal)
{
post("packOSC: Problem writing address.");
}
}
else
{
char *typeTags;
/* First figure out the type tags */
for (numTags = 0; numTags < numArgs; numTags++)
{
if (args[numTags].type == BLOB_osc) break; /* blob has one type tag and is the last element */
}
typeTags=(char*)getbytes(sizeof(char)*(numTags+2)); /* number of args + ',' + '\0' */
typeTags[0] = ',';
for (j = 0; j < numTags; ++j)
{
switch (args[j].type)
{
case INT_osc:
typeTags[j+1] = 'i';
break;
case FLOAT_osc:
typeTags[j+1] = 'f';
break;
case STRING_osc:
typeTags[j+1] = 's';
break;
case BLOB_osc:
typeTags[j+1] = 'b';
break;
default:
pd_error(x, "packOSC: arg %d type is unrecognized(%d)", j, args[j].type);
break;
}
}
typeTags[j+1] = '\0';
#ifdef DEBUG
printf("packOSC_writemessage calling OSC_writeAddressAndTypes with x->x_typetags %d typeTags %p (%s)\n", x->x_typetags, typeTags, typeTags);
#endif
returnVal = OSC_writeAddressAndTypes(buf, messageName, typeTags);
if (returnVal)
{
pd_error(x, "packOSC: Problem writing address.");
}
freebytes(typeTags, sizeof(char)*(numTags+2));
}
for (j = 0; j < numArgs; j++)
{
switch (args[j].type)
{
case INT_osc:
returnVal = OSC_writeIntArg(buf, args[j].datum.i);
break;
case FLOAT_osc:
returnVal = OSC_writeFloatArg(buf, args[j].datum.f);
break;
case STRING_osc:
returnVal = OSC_writeStringArg(buf, args[j].datum.s);
break;
case BLOB_osc:
#ifdef DEBUG
printf("packOSC_writemessage calling OSC_writeBlobArg\n");
#endif
return OSC_writeBlobArg(buf, &args[j], numArgs-j); /* All the remaining args are blob */
default:
break; /* just skip bad types (which we won't get anyway unless this code is buggy) */
}
}
return returnVal;
}
static void packOSC_sendbuffer(t_packOSC *x)
{
int i;
int length;
unsigned char *buf;
int reentry_count=x->x_reentry_count; /* must be on stack for recursion */
size_t bufsize=sizeof(t_atom)*x->x_buflength; /* must be on stack for recursion */
t_atom *atombuffer=x->x_bufferForOSClist; /* must be on stack in the case of recursion */
if(reentry_count>0) /* if we are recurse, let's move atombuffer to the stack */
atombuffer=(t_atom *)getbytes(bufsize);
if(!atombuffer) {
pd_error(x, "packOSC: unable to allocate %lu bytes for atombuffer", (long)bufsize);
return;
}
#ifdef DEBUG
printf("packOSC_sendbuffer: Sending buffer...\n");
#endif
if (OSC_isBufferEmpty(x->x_oscbuf))
{
post("packOSC_sendbuffer() called but buffer empty");
return;
}
if (!OSC_isBufferDone(x->x_oscbuf))