diff options
Diffstat (limited to 'sc4pd/headers/plugin_interface/sc_msg_iter.h')
| -rw-r--r-- | sc4pd/headers/plugin_interface/sc_msg_iter.h | 264 |
1 files changed, 264 insertions, 0 deletions
diff --git a/sc4pd/headers/plugin_interface/sc_msg_iter.h b/sc4pd/headers/plugin_interface/sc_msg_iter.h new file mode 100644 index 0000000..240a30f --- /dev/null +++ b/sc4pd/headers/plugin_interface/sc_msg_iter.h @@ -0,0 +1,264 @@ +/* + SuperCollider real time audio synthesis system + Copyright (c) 2002 James McCartney. All rights reserved. + http://www.audiosynth.com + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +*/ + + +#ifndef _sc_msg_iter_ +#define _sc_msg_iter_ + +#include "SC_Endian.h" +#include "SC_Types.h" +#include <string.h> + +// return the ptr to the byte after the OSC string. +inline char* OSCstrskip(char *str) +{ +// while (str[3]) { str += 4; } +// return str + 4; + do { str += 4; } while (str[-1]); + return str; +} + +// returns the number of bytes (including padding) for an OSC string. +inline int OSCstrlen(char *strin) +{ + return OSCstrskip(strin) - strin; +} + +// returns a float, converting an int if necessary +inline float32 OSCfloat(char* inData) +{ + elem32* elem = (elem32*)inData; + elem->u = ntohl(elem->u); + return elem->f; +} + +inline int32 OSCint(char* inData) +{ + return (int32)ntohl(*(uint32*)inData); +} + +inline int64 OSCtime(char* inData) +{ + return ((int64)ntohl(*(uint32*)inData) << 32) + (ntohl(*(uint32*)(inData + 4))); +} + +inline float64 OSCdouble(char* inData) +{ + elem64 slot; + slot.i = ((int64)ntohl(*(uint32*)inData) << 32) + (ntohl(*(uint32*)(inData + 4))); + return slot.f; +} + +struct sc_msg_iter +{ + char *data, *rdpos, *endpos, *tags; + int size, count; + + sc_msg_iter(); + sc_msg_iter(int inSize, char* inData); + void init(int inSize, char* inData); + int32 geti(int32 defaultValue = 0); + float32 getf(float32 defaultValue = 0.f); + float64 getd(float64 defaultValue = 0.f); + char *gets(char* defaultValue = 0); + int32 *gets4(char* defaultValue = 0); + size_t getbsize(); + void getb(char* outData, size_t inSize); + void skipb(); + int remain() { return endpos - rdpos; } + + char nextTag(char defaultTag = 'f') { return tags ? tags[count] : defaultTag; } +}; + +inline sc_msg_iter::sc_msg_iter() +{ +} + +inline sc_msg_iter::sc_msg_iter(int inSize, char* inData) +{ + init(inSize, inData); +} + +inline void sc_msg_iter::init(int inSize, char* inData) +{ + data = inData; + size = inSize; + endpos = data + size; + count = 0; + if (data[0] == ',') { + tags = data+1; + rdpos = OSCstrskip(data); + } else { + tags = 0; + rdpos = data; + } +} + +inline int32 sc_msg_iter::geti(int32 defaultValue) +{ + int value; + if (remain() <= 0) return defaultValue; + if (tags) { + if (tags[count] == 'i') { + value = OSCint(rdpos); + rdpos += sizeof(int32); + } else if (tags[count] == 'f') { + value = (int32)OSCfloat(rdpos); + rdpos += sizeof(float32); +/* } else if (tags[count] == 's') { + value = atoi(rdpos); + rdpos = OSCstrskip(rdpos); +*/ + } else { + value = defaultValue; + } + } else { + value = (int)OSCint(rdpos); + rdpos += sizeof(int32); + } + count ++; + return value; +} + +inline float32 sc_msg_iter::getf(float32 defaultValue) +{ + float32 value; + if (remain() <= 0) return defaultValue; + if (tags) { + if (tags[count] == 'f') { + value = OSCfloat(rdpos); + rdpos += sizeof(float32); + } else if (tags[count] == 'd') { + value = (float64)OSCdouble(rdpos); + rdpos += sizeof(float64); + } else if (tags[count] == 'i') { + value = (float32)OSCint(rdpos); + rdpos += sizeof(int32); +/* } else if (tags[count] == 's') { + value = atof(rdpos); + rdpos = OSCstrskip(rdpos); +*/ + } else { + value = defaultValue; + } + } else { + value = OSCfloat(rdpos); + rdpos += sizeof(float32); + } + count ++; + return value; +} + +inline float64 sc_msg_iter::getd(float64 defaultValue) +{ + float64 value; + if (remain() <= 0) return defaultValue; + if (tags) { + if (tags[count] == 'f') { + value = (float64)OSCfloat(rdpos); + rdpos += sizeof(float32); + } else if (tags[count] == 'd') { + value = OSCdouble(rdpos); + rdpos += sizeof(float64); + } else if (tags[count] == 'i') { + value = (float64)OSCint(rdpos); + rdpos += sizeof(int32); +/* } else if (tags[count] == 's') { + value = atof(rdpos); + rdpos = OSCstrskip(rdpos); +*/ + } else { + value = defaultValue; + } + } else { + value = OSCdouble(rdpos); + rdpos += sizeof(float64); + } + count ++; + return value; +} + + +inline char* sc_msg_iter::gets(char* defaultValue) +{ + char* value; + if (remain() <= 0) return 0; + if (tags) { + if (tags[count] == 's') { + value = rdpos; + rdpos = OSCstrskip(rdpos); + } else { + value = defaultValue; + } + } else { + value = rdpos; + rdpos = OSCstrskip(rdpos); + } + count ++; + return value; +} + +inline int32* sc_msg_iter::gets4(char* defaultValue) +{ + int32* value; + if (remain() <= 0) return 0; + if (tags) { + if (tags[count] == 's') { + value = (int32*)rdpos; + rdpos = OSCstrskip(rdpos); + } else { + value = (int32*)defaultValue; + } + } else { + value = (int32*)rdpos; + rdpos = OSCstrskip(rdpos); + } + count ++; + return value; +} + +inline size_t sc_msg_iter::getbsize() +{ + if (remain() <= 0) return 0; + if (tags && tags[count] != 'b') return 0; + return (size_t)OSCint(rdpos); +} + +inline void sc_msg_iter::getb(char* outArray, size_t size) +{ + size_t len = OSCint(rdpos); + if (size < len) return; + rdpos += sizeof(int32); + size_t len4 = (len + 3) & -4; + memcpy(outArray, rdpos, size); + rdpos += len4; + count ++; +} + +inline void sc_msg_iter::skipb() +{ + size_t len = OSCint(rdpos); + rdpos += sizeof(int32); + size_t len4 = (len + 3) & -4; + rdpos += len4; + count ++; +} + +#endif |