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Diffstat (limited to 'osc')
-rw-r--r--osc/packOSC.c218
1 files changed, 166 insertions, 52 deletions
diff --git a/osc/packOSC.c b/osc/packOSC.c
index 95873c3..f06004c 100644
--- a/osc/packOSC.c
+++ b/osc/packOSC.c
@@ -124,21 +124,32 @@ typedef int int4byte;
typedef struct OSCbuf_struct
{
- char *buffer; /* The buffer to hold the OSC packet */
- int size; /* Size of the buffer */
- char *bufptr; /* Current position as we fill the buffer */
- int state; /* State of partially-constructed message */
- int4byte *thisMsgSize; /* Pointer to count field before */
+ 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 */
+ int4byte *thisMsgSize; /* Pointer to count field before */
/* currently-being-written message */
- int4byte *prevCounts[MAX_BUNDLE_NESTING]; /* Pointers to count */
+ int4byte *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 */
+ 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 */
+ 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 */
@@ -162,7 +173,7 @@ static int CheckTypeTag(OSCbuf *buf, char expectedType);
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, int size, char *byteArray);
+static void OSC_initBuffer(OSCbuf *buf, size_t size, char *byteArray);
/* Reset the given OSCbuf. Do this after you send out the contents of
@@ -176,7 +187,7 @@ static int OSC_isBufferEmpty(OSCbuf *buf);
/* How much space is left in the buffer? */
-static int OSC_freeSpaceInBuffer(OSCbuf *buf);
+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);
@@ -187,7 +198,7 @@ static int OSC_isBufferDone(OSCbuf *buf);
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, int bytesNeeded);
+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().
@@ -218,6 +229,7 @@ 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, int4byte 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);
@@ -226,17 +238,6 @@ static int OSC_writeNullArg(OSCbuf *buf, char type);
needed for 4-byte alignment. */
static int OSC_effectiveStringLength(char *string);
-typedef struct
-{
- enum {INT_osc, FLOAT_osc, STRING_osc, NOTYPE_osc} type;
- union
- {
- int i;
- float f;
- char *s;
- } datum;
-} typedArg;
-
static t_class *packOSC_class;
@@ -270,6 +271,7 @@ static void packOSC_free(t_packOSC *x);
void packOSC_setup(void);
static typedArg packOSC_parseatom(t_atom *a);
static typedArg packOSC_forceatom(t_atom *a, char ctype);
+static typedArg packOSC_blob(t_atom *a);
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);
@@ -326,7 +328,7 @@ static void packOSC_closebundle(t_packOSC *x)
{
if (OSC_closeBundle(x->x_oscbuf))
{
- post("packOSC: Problem closing bundle.");
+ error("packOSC: Problem closing bundle.");
return;
}
outlet_float(x->x_bdpthout, (float)x->x_oscbuf->bundleDepth);
@@ -373,17 +375,17 @@ 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)
{
char messageName[MAXPDSTRING];
- unsigned int nTypeTags = 0, typeStrTotalSize = 0;
+ unsigned int nTypeTags = 0, typeStrTotalSize = 0;
unsigned int argsSize = sizeof(typedArg)*argc;
char* typeStr = NULL; /* might not be used */
typedArg* args = (typedArg*)getbytes(argsSize);
- int i, nTags, nArgs;
+ unsigned int i, nTagsWithData, nArgs, blobCount;
unsigned int m, j, k;
char c;
if (args == NULL)
{
- post("packOSC: unable to allocate %lu bytes for args", argsSize);
+ error("packOSC: unable to allocate %lu bytes for args", argsSize);
return;
}
messageName[0] = '\0'; /* empty */
@@ -394,7 +396,7 @@ static void packOSC_sendtyped(t_packOSC *x, t_symbol *s, int argc, t_atom *argv)
len = MAXPDSTRING-1;
strncpy(messageName, x->x_prefix, MAXPDSTRING);
- atom_string(&argv[0], messageName+len, MAXPDSTRING-len);
+ atom_string(&argv[0], messageName+len, (unsigned)(MAXPDSTRING-len));
}
else
atom_string(&argv[0], messageName, MAXPDSTRING); /* the OSC address string */
@@ -402,12 +404,12 @@ static void packOSC_sendtyped(t_packOSC *x, t_symbol *s, int argc, t_atom *argv)
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 = strlen(atom_getsymbol(&argv[1])->s_name);
+ nTypeTags = (unsigned int)strlen(atom_getsymbol(&argv[1])->s_name);
typeStrTotalSize = nTypeTags + 2;
typeStr = (char*)getzbytes(typeStrTotalSize);
if (typeStr == NULL)
{
- post("packOSC: unable to allocate %lu bytes for typeStr", nTypeTags);
+ error("packOSC: unable to allocate %lu bytes for typeStr", nTypeTags);
return;
}
typeStr[0] = ',';
@@ -416,24 +418,50 @@ static void packOSC_sendtyped(t_packOSC *x, t_symbol *s, int argc, t_atom *argv)
post("typeStr: %s, nTypeTags %lu", typeStr, nTypeTags);
#endif
nArgs = argc-2;
- for (m = nTags = 0; m < nTypeTags; ++m)
+ for (m = nTagsWithData = blobCount = 0; m < nTypeTags; ++m)
{
#ifdef DEBUG
post("typeStr[%d] %c", m+1, typeStr[m+1]);
#endif
if ((c = typeStr[m+1]) == 0) break;
if (!(c == 'T' || c == 'F' || c == 'N' || c == 'I'))
- ++nTags; /* these tags have data */
+ ++nTagsWithData; /* these tags have data */
+/*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')
+ {
+ ++nTagsWithData ; /* at least one byte of data, */
+ blobCount++; /* but probably more, so set a flag */
+ }
+ }
+ if (((blobCount == 0)&&(nTagsWithData != nArgs)) || ((blobCount != 0)&&(nTagsWithData > nArgs)))
+ {
+ error("packOSC: Tags count %d doesn't match argument count %d", nTagsWithData, nArgs);
+ goto cleanup;
}
- if (nTags != nArgs)
+ if (blobCount > 1)
{
- post("packOSC: Tags count %d doesn't match argument count %d", nTags, nArgs);
+ error("packOSC: Only one blob per packet at the moment...");
goto cleanup;
}
for (j = k = 0; j < m; ++j) /* m is the number of tags */
{
c = typeStr[j+1];
- if (!(c == 'T' || c == 'F' || c == 'N' || c == 'I')) /* not no data */
+ if (c == 'b')
+ { /* A blob has to be the last item, until we get more elaborate. */
+ if (j != m-1)
+ {
+ error("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 (; k < nArgs; ++k)
+ {
+ args[k] = packOSC_blob(&argv[k+2]);
+ }
+ }
+ else if (!(c == 'T' || c == 'F' || c == 'N' || c == 'I')) /* not no data */
{
args[k] = packOSC_forceatom(&argv[k+2], c);
++k;
@@ -441,13 +469,13 @@ static void packOSC_sendtyped(t_packOSC *x, t_symbol *s, int argc, t_atom *argv)
}
if(packOSC_writetypedmessage(x, x->x_oscbuf, messageName, nArgs, args, typeStr))
{
- post("packOSC: usage error, write-msg failed.");
+ error("packOSC: usage error, write-msg failed.");
goto cleanup;
}
}
else
{
- for (i = 0; i < argc-1; i++)
+ for (i = 0; i < (unsigned)(argc-1); i++)
{
args[i] = packOSC_parseatom(&argv[i+1]);
#ifdef DEBUG
@@ -471,7 +499,7 @@ static void packOSC_sendtyped(t_packOSC *x, t_symbol *s, int argc, t_atom *argv)
}
if(packOSC_writemessage(x, x->x_oscbuf, messageName, i, args))
{
- post("packOSC: usage error, write-msg failed.");
+ error("packOSC: usage error, write-msg failed.");
goto cleanup;
}
}
@@ -600,6 +628,42 @@ static typedArg packOSC_parseatom(t_atom *a)
}
}
+static typedArg packOSC_blob(t_atom *a)
+{ /* ctype is one of i,f,s,T,F,N,I*/
+ typedArg returnVal;
+ t_float f;
+ t_int i;
+ t_symbol s;
+ static char buf[MAXPDSTRING];
+
+ returnVal.type = NOTYPE_osc;
+ returnVal.datum.s = NULL;
+#ifdef DEBUG
+ post("packOSC_blob %d:", nArgs);
+#endif
+ /* the atoms must all be bytesl */
+ if(a->a_type != A_FLOAT)
+ {
+ error("packOSC_blob: all values must be floats");
+ return returnVal;
+ }
+ f = atom_getfloat(a);
+ i = (int)f;
+ if (i != f)
+ {
+ error("packOSC_blob: all values must be whole numbers");
+ return returnVal;
+ }
+ if ((i < -128) || (i > 255))
+ {
+ error("packOSC_blob: all values must be bytes");
+ return returnVal;
+ }
+ returnVal.type = BLOB_osc;
+ returnVal.datum.i = i;
+ return returnVal;
+}
+
static typedArg packOSC_forceatom(t_atom *a, char ctype)
{ /* ctype is one of i,f,s,T,F,N,I*/
typedArg returnVal;
@@ -699,7 +763,7 @@ static int packOSC_writetypedmessage
if (returnVal)
{
- post("packOSC: Problem writing address. (%d)", returnVal);
+ error("packOSC: Problem writing address. (%d)", returnVal);
return returnVal;
}
for (j = i = 0; (typeStr[i+1]!= 0) || (j < numArgs); j++, i++)
@@ -734,6 +798,12 @@ static int packOSC_writetypedmessage
#endif
returnVal = OSC_writeStringArg(buf, args[j].datum.s);
break;
+ case BLOB_osc:
+ /* write all the blob elements at once */
+#ifdef DEBUG
+ post("packOSC_writetypedmessage calling OSC_writeBlobArg\n");
+#endif
+ return OSC_writeBlobArg(buf, &args[j], numArgs-j);
default:
break; /* types with no data */
@@ -745,9 +815,7 @@ static int packOSC_writetypedmessage
static int packOSC_writemessage(t_packOSC *x, OSCbuf *buf, char *messageName, int numArgs, typedArg *args)
{
- int j, returnVal;
-
- returnVal = 0;
+ int j, returnVal = 0, numTags;
if (!x->x_typetags)
{
@@ -759,11 +827,17 @@ static int packOSC_writemessage(t_packOSC *x, OSCbuf *buf, char *messageName, in
}
else
{
- /* First figure out the type tags */
- char *typeTags=(char*)getbytes(sizeof(char)*(numArgs+2));
+ 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 < numArgs; ++j)
+ for (j = 0; j < numTags; ++j)
{
switch (args[j].type)
{
@@ -776,8 +850,11 @@ static int packOSC_writemessage(t_packOSC *x, OSCbuf *buf, char *messageName, in
case STRING_osc:
typeTags[j+1] = 's';
break;
+ case BLOB_osc:
+ typeTags[j+1] = 'b';
+ break;
default:
- post("packOSC: arg %d type is unrecognized(%d)", j, args[j].type);
+ error("packOSC: arg %d type is unrecognized(%d)", j, args[j].type);
break;
}
}
@@ -785,9 +862,9 @@ static int packOSC_writemessage(t_packOSC *x, OSCbuf *buf, char *messageName, in
returnVal = OSC_writeAddressAndTypes(buf, messageName, typeTags);
if (returnVal)
{
- post("packOSC: Problem writing address.");
+ error("packOSC: Problem writing address.");
}
- freebytes(typeTags, sizeof(char)*(numArgs+2));
+ freebytes(typeTags, sizeof(char)*(numTags+2));
}
for (j = 0; j < numArgs; j++)
{
@@ -802,6 +879,9 @@ static int packOSC_writemessage(t_packOSC *x, OSCbuf *buf, char *messageName, in
case STRING_osc:
returnVal = OSC_writeStringArg(buf, args[j].datum.s);
break;
+ case BLOB_osc:
+ post ("packOSC_writemessage calling OSC_writeBlobArg\n");
+ 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) */
}
@@ -859,7 +939,7 @@ static void packOSC_sendbuffer(t_packOSC *x)
*/
-static void OSC_initBuffer(OSCbuf *buf, int size, char *byteArray)
+static void OSC_initBuffer(OSCbuf *buf, size_t size, char *byteArray)
{
buf->buffer = byteArray;
buf->size = size;
@@ -881,7 +961,7 @@ static int OSC_isBufferEmpty(OSCbuf *buf)
return buf->bufptr == buf->buffer;
}
-static int OSC_freeSpaceInBuffer(OSCbuf *buf)
+static size_t OSC_freeSpaceInBuffer(OSCbuf *buf)
{
return buf->size - (buf->bufptr - buf->buffer);
}
@@ -901,11 +981,11 @@ static int OSC_packetSize(OSCbuf *buf)
return (buf->bufptr - buf->buffer);
}
-static int OSC_CheckOverflow(OSCbuf *buf, int bytesNeeded)
+static int OSC_CheckOverflow(OSCbuf *buf, size_t bytesNeeded)
{
if ((bytesNeeded) > OSC_freeSpaceInBuffer(buf))
{
- post("packOSC: buffer overflow");
+ error("packOSC: buffer overflow");
return 1;
}
return 0;
@@ -1159,6 +1239,40 @@ static int OSC_writeIntArg(OSCbuf *buf, int4byte arg)
return 0;
}
+static int OSC_writeBlobArg(OSCbuf *buf, typedArg *arg, size_t nArgs)
+{
+ size_t i;
+ unsigned char b;
+
+/* pack all the args as single bytes following a 4-byte length */
+ if(OSC_CheckOverflow(buf, nArgs+4))return 1;
+ if (CheckTypeTag(buf, 'b')) return 9;
+
+ *((int4byte *) buf->bufptr) = htonl(nArgs);
+#ifdef DEBUG
+ post ("OSC_writeBlobArg length : %lu", nArgs);
+#endif
+ buf->bufptr += 4;
+
+ for (i = 0; i < nArgs; i++)
+ {
+ if (arg[i].type != BLOB_osc)
+ {
+ error("packOSC: blob element %i not blob type", i);
+ return 9;
+ }
+ b = (unsigned char)((arg[i].datum.i)&0x0FF);/* force int to 8-bit byte */
+#ifdef DEBUG
+ post ("OSC_writeBlobArg : %d, %d", arg[i].datum.i, b);
+#endif
+ buf->bufptr[i] = b;
+ }
+ i = OSC_WritePadding(buf->bufptr, i);
+ buf->bufptr += i;
+ buf->gettingFirstUntypedArg = 0;
+ return 0;
+}
+
static int OSC_writeStringArg(OSCbuf *buf, char *arg)
{
int len;
generated by cgit v1.2.1 (git 2.18.0) at 2024-12-27 15:21:33 +0000