Commit 74269a4e authored by thomas's avatar thomas
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This commit was manufactured by cvs2svn to create tag 'v0-4-0'.

git-svn-id: https://svn.grrrr.org/ext/tags/v0-4-0@398 4d9ac71a-51e6-0310-8455-cad1006bcd31
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/*
flext - C++ layer for Max/MSP and pd (pure data) externals
Copyright (c) 2001,2002 Thomas Grill (xovo@gmx.net)
For information on usage and redistribution, and for a DISCLAIMER OF ALL
WARRANTIES, see the file, "license.txt," in this distribution.
*/
/*! \file flsetup.cpp
\brief Implementation of helper functions for object setup.
*/
#include "flext.h"
#include <ctype.h>
#include <string.h>
#define ALIASDEL ','
#define ALIASSLASHES ":/\\"
#ifdef MAXMSP
#define ALIASSLASH ':'
#elif defined(NT)
#define ALIASSLASH '/'
#else
#define ALIASSLASH '/'
#endif
//! C++ strdup function
char *flext::strdup(const char *t)
{
if(!t) return NULL;
int len = strlen(t);
char *r = new char[len+1];
memcpy(r,t,len+1);
return r;
}
//! Extract space-delimited words from a string
const char *flext::extract(const char *name,int ix)
{
static char tmp[1024];
const char *n = name;
const char *del = strchr(name,ALIASDEL);
if(del) {
if(ix < 0) {
char *t = tmp;
while(n < del && (isspace(*n) || strchr(ALIASSLASHES,*n))) ++n;
while(n < del && !isspace(*n)) {
char c = *(n++);
*(t++) = strchr(ALIASSLASHES,c)?ALIASSLASH:c;
}
while(*t == ALIASSLASH && t > tmp) --t;
*t = 0;
return tmp;
}
n = del+1;
}
while(*n && isspace(*n)) ++n;
for(int i = 0; n && *n; ++i) {
if(i == ix) {
char *t = tmp;
for(; *n && !isspace(*n); ++t,++n) *t = *n;
*t = 0;
return *tmp?tmp:NULL;
}
else {
while(*n && !isspace(*n)) ++n;
while(*n && isspace(*n)) ++n;
}
}
return NULL;
}
#ifdef _DEBUG
//! Check if object's name ends with a tilde
bool flext::chktilde(const char *objname)
{
// int stplen = strlen(setupfun);
bool tilde = true; //!strncmp(setupfun,"_tilde",6);
if((objname[strlen(objname)-1] == '~'?1:0)^(tilde?1:0)) {
if(tilde)
error("flext_obj::check_tilde: %s (no trailing ~) is defined as a tilde object",objname);
else
error("flext_obj::check_tilde: %s is no tilde object",objname);
return true;
}
else
return false;
}
#endif
/*
flext - C++ layer for Max/MSP and pd (pure data) externals
Copyright (c) 2001,2002 Thomas Grill (xovo@gmx.net)
For information on usage and redistribution, and for a DISCLAIMER OF ALL
WARRANTIES, see the file, "license.txt," in this distribution.
*/
/*! \file flthr.h
\brief Definitions for multithreading
\internal
*/
#ifndef __FLEXT_THR_H
#define __FLEXT_THR_H
// threading must be turned on
#ifdef FLEXT_THREADS
#include <pthread.h>
#include <sched.h>
class flext_base::thr_params
{
public:
thr_params(flext_base *c,int n = 1);
~thr_params();
void set_any(const t_symbol *s,int argc,t_atom *argv);
void set_list(int argc,t_atom *argv);
flext_base *cl;
union _data {
bool _bool;
float _float;
int _int;
t_symptr _t_symptr;
struct { AtomAnything *args; } _any;
struct { AtomList *args; } _list;
struct { void *data; } _ext;
} *var;
};
class flext_base::thr_entry
{
public:
thr_entry(pthread_t id = pthread_self()): thrid(id),nxt(NULL) {}
bool Is(pthread_t id = pthread_self()) const { return pthread_equal(thrid,id) != 0; }
pthread_t thrid;
thr_entry *nxt;
};
#endif // FLEXT_THREADS
#endif
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/*
flext tutorial - attributes 1
Copyright (c) 2002 Thomas Grill (xovo@gmx.net)
For information on usage and redistribution, and for a DISCLAIMER OF ALL
WARRANTIES, see the file, "license.txt," in this distribution.
-------------------------------------------------------------------------
This is an example of a simple object doing a float addition
It is a variation of the tutorial "simple 2"
*/
// IMPORTANT: enable attribute processing (specify before inclusion of flext headers!)
// For clarity, this is done here, but you'd better specify it as a compiler definition
// FLEXT_ATTRIBUTES must be 0 or 1,
#define FLEXT_ATTRIBUTES 1
// include flext header
#include <flext.h>
// check for appropriate flext version
#if !defined(FLEXT_VERSION) || (FLEXT_VERSION < 400)
#error You need at least flext version 0.4.0
#endif
class attr1:
public flext_base
{
FLEXT_HEADER(attr1,flext_base)
public:
// constructor
attr1();
protected:
void m_trigger(float f);
// stored argument
float arg;
private:
// callback for method "m_trigger" (with one float argument)
FLEXT_CALLBACK_F(m_trigger);
// define attribute callbacks for variable "arg" (with GET and SET properties)
FLEXT_ATTRVAR_F(arg);
};
// instantiate the class
FLEXT_NEW("attr1",attr1)
attr1::attr1():
arg(0) // initialize argument
{
// define inlets
AddInAnything(); // first inlet of type anything (index 0)
// define outlets
AddOutFloat(); // one float outlet (has index 0)
// register methods
FLEXT_ADDMETHOD(0,m_trigger); // register method (for floats) "m_trigger" for inlet 0
FLEXT_ADDATTR_VAR1("arg",arg); // register attribute "arg" with variable arg
}
void attr1::m_trigger(float f)
{
float res = arg+f;
// output value to outlet
ToOutFloat(0,res); // (0 stands for the outlet index 0)
}
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# Microsoft Developer Studio Generated Build File, Format Version 6.00
# ** NICHT BEARBEITEN **
# TARGTYPE "Win32 (x86) Dynamic-Link Library" 0x0102
CFG=attr2 - Win32 Debug
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/*
flext tutorial - attributes 2
Copyright (c) 2002 Thomas Grill (xovo@gmx.net)
For information on usage and redistribution, and for a DISCLAIMER OF ALL
WARRANTIES, see the file, "license.txt," in this distribution.
-------------------------------------------------------------------------
This is an example of an object doing various float operations
*/
// IMPORTANT: enable attribute processing (specify before inclusion of flext headers!)
// For clarity, this is done here, but you'd better specify it as a compiler definition
// FLEXT_ATTRIBUTES must be 0 or 1,
#define FLEXT_ATTRIBUTES 1
// include flext header
#include <flext.h>
// check for appropriate flext version
#if !defined(FLEXT_VERSION) || (FLEXT_VERSION < 400)
#error You need at least flext version 0.4.0
#endif
#include <math.h>
class attr2:
public flext_base
{
// compulsory flext header with a class setup function
FLEXT_HEADER_S(attr2,flext_base,setup)
public:
// constructor
attr2();
protected:
void m_trigger(float f);
// stored argument of operation
float arg;
// stored result
float res;
enum operation {
op_set,op_add,op_sub,op_mul,op_div,op_pow
} op;
static const t_symbol *sym_set,*sym_add,*sym_sub,*sym_div,*sym_mul,*sym_pow;
private:
static void setup(t_class *);
// callback for method "m_trigger" (with one float argument)
FLEXT_CALLBACK_F(m_trigger);
// define attribute callbacks for variable "arg" ("ATTRVAR" means GET and SET)
FLEXT_ATTRVAR_F(arg);
// define attribute callbacks for variable "res" (GET only)
FLEXT_ATTRGET_F(res);
// methods for getting/setting the operation mode
void opget(const t_symbol *&s) const;
void opset(const t_symbol *&s);
// define attribute callbacks for variable "res" (GET only)
FLEXT_CALLGET_S(opget);
FLEXT_CALLSET_S(opset);
};
// instantiate the class
FLEXT_NEW("attr2",attr2)
// instantiate static variables
const t_symbol
*attr2::sym_set,
*attr2::sym_add,*attr2::sym_sub,
*attr2::sym_div,*attr2::sym_mul,
*attr2::sym_pow;
void attr2::setup(t_class *)
{
// Upon class creation setup some symbols
// This is done only upon creation of of the first "attr2" object
sym_set = MakeSymbol("=");
sym_add = MakeSymbol("+");
sym_sub = MakeSymbol("-");
sym_mul = MakeSymbol("*");
sym_div = MakeSymbol("/");
sym_pow = MakeSymbol("**");
}
attr2::attr2():
arg(0),res(0), // initialize argument and result
op(op_set) // initialize operation
{
// define inlets
AddInAnything(); // first inlet of type anything (index 0)
// define outlets
AddOutFloat(); // one float outlet (has index 0)
// register method (for floats) "m_trigger" for inlet 0
FLEXT_ADDMETHOD(0,m_trigger);
// register attribute "arg" with the variable "arg"
FLEXT_ADDATTR_VAR1("arg",arg);
// register attribute "result" with variable "res"
FLEXT_ADDATTR_GET("result",res);
// register attribute "op" with methods "opget" and "opset"
FLEXT_ADDATTR_VAR("op",opget,opset);
}
// receive an operand, do the math operation and trigger the output
void attr2::m_trigger(float f)
{
switch(op) {
case op_set: res = f; break;
case op_add: res = f+arg; break;
case op_sub: res = f-arg; break;
case op_mul: res = f*arg; break;
case op_div:
if(arg) res = f/arg;
else {
post("%s - argument to division is 0: result set to 0",thisName());
res = 0;
}
break;
case op_pow: res = (float)pow(f,arg); break;
#ifdef _DEBUG
default: ERRINTERNAL(); // operation not defined
#endif
}
// output value to outlet
ToOutFloat(0,res); // (0 stands for the outlet index 0)
}
// report the operation mode
void attr2::opget(const t_symbol *&s) const
{
switch(op) {
case op_set: s = sym_set; break;
case op_add: s = sym_add; break;
case op_sub: s = sym_sub; break;
case op_mul: s = sym_mul; break;
case op_div: s = sym_div; break;
case op_pow: s = sym_pow; break;
#ifdef _DEBUG
default: ERRINTERNAL(); // operation not defined
#endif
}
}
// set the operation mode
void attr2::opset(const t_symbol *&s)
{
if(s == sym_set)
op = op_set;
else if(s == sym_add)
op = op_add;
else if(s == sym_sub)
op = op_sub;
else if(s == sym_mul)
op = op_mul;
else if(s == sym_div)
op = op_div;
else if(s == sym_pow)
op = op_pow;