Commit fd29cd74 authored by Jonathan Wilkes's avatar Jonathan Wilkes

Vanilla 0.47 backport 16: add expr objects to Pd source

parent ff27764b
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/* Copyright (c) IRCAM.
* For information on usage and redistribution, and for a DISCLAIMER OF ALL
* WARRANTIES, see the file, "LICENSE.txt," in this distribution. */
/* "expr" was written by Shahrokh Yadegari c. 1989. -msp */
/* "expr~" and "fexpr~" conversion by Shahrokh Yadegari c. 1999,2000 */
#define MSP
#ifdef PD
#undef MSP
#endif
#ifdef PD
#include "m_pd.h"
#else /* MSP */
#include "ext.h"
#include "z_dsp.h"
#endif
#define fts_malloc malloc
#define fts_calloc calloc
#define fts_free free
#define fts_realloc realloc
#define fts_atom_t t_atom
#define fts_object_t t_object
typedef t_symbol *fts_symbol_t;
#ifdef MSP
#define t_atom Atom
#define t_symbol Symbol
#define pd_new(x) newobject(x);
#define pd_free(x) freeobject(x);
#define t_outlet void
#define t_binbuf void
typedef t_class *t_pd;
typedef float t_floatarg;
#include <stdlib.h>
#include <stdio.h>
#include <stdarg.h>
#include <string.h>
#include <errno.h>
void pd_error(void *object, char *fmt, ...);
#endif /* MSP */
#define post_error pd_error
#define fts_is_floatg(x) ((x)->a_type == A_FLOAT)
#define fts_new_symbol_copy gensym
#define fts_symbol_name(x) ((x)->s_name)
/*
* Currently the maximum number of variables (inlets) that are supported
* is 10.
*/
#define MAX_VARS 9
#define MINODES 10 /* was 200 */
/* terminal defines */
/*
* operations
* (x<<16|y) x defines the level of precedence,
* the lower the number the lower the precedence
* separators are defines as operators just for convenience
*/
#define OP_SEMI ((long)(1<<16|1)) /* ; */
#define OP_STORE ((long)(2<<16|28)) /* = */
#define OP_COMMA ((long)(3<<16|2)) /* , */
#define OP_LOR ((long)(4<<16|3)) /* || */
#define OP_LAND ((long)(5<<16|4)) /* && */
#define OP_OR ((long)(6<<16|5)) /* | */
#define OP_XOR ((long)(7<<16|6)) /* ^ */
#define OP_AND ((long)(8<<16|7)) /* & */
#define OP_NE ((long)(9<<16|8)) /* != */
#define OP_EQ ((long)(9<<16|9)) /* == */
#define OP_GE ((long)(10<<16|10)) /* >= */
#define OP_GT ((long)(10<<16|11)) /* > */
#define OP_LE ((long)(10<<16|12)) /* <= */
#define OP_LT ((long)(10<<16|13)) /* < */
#define OP_SR ((long)(11<<16|14)) /* >> */
#define OP_SL ((long)(11<<16|15)) /* << */
#define OP_SUB ((long)(12<<16|16)) /* - */
#define OP_ADD ((long)(12<<16|17)) /* + */
#define OP_MOD ((long)(13<<16|18)) /* % */
#define OP_DIV ((long)(13<<16|19)) /* / */
#define OP_MUL ((long)(13<<16|20)) /* * */
#define OP_UMINUS ((long)(14<<16|21)) /* - unary minus */
#define OP_NEG ((long)(14<<16|22)) /* ~ one complement */
#define OP_NOT ((long)(14<<16|23)) /* ! */
#define OP_RB ((long)(15<<16|24)) /* ] */
#define OP_LB ((long)(15<<16|25)) /* [ */
#define OP_RP ((long)(15<<16|26)) /* ) */
#define OP_LP ((long)(15<<16|27)) /* ( */
#define HI_PRE ((long)(100<<16)) /* infinite precedence */
#define PRE_MASK ((long)0xffff0000) /* precedence level mask */
struct ex_ex;
#define name_ok(c) (((c)=='_') || ((c)>='a' && (c)<='z') || \
((c)>='A' && (c)<='Z') || ((c) >= '0' && (c) <= '9'))
#define unary_op(x) ((x) == OP_NOT || (x) == OP_NEG || (x) == OP_UMINUS)
struct ex_ex {
union {
long v_int;
t_float v_flt;
t_float *v_vec; /* this is an for allocated vector */
long op;
char *ptr;
} ex_cont; /* content */
#define ex_int ex_cont.v_int
#define ex_flt ex_cont.v_flt
#define ex_vec ex_cont.v_vec
#define ex_op ex_cont.op
#define ex_ptr ex_cont.ptr
long ex_type; /* type of the node */
};
#define exNULL ((struct ex_ex *)0)
/* defines for ex_type */
#define ET_INT 1 /* an int */
#define ET_FLT 2 /* a float */
#define ET_OP 3 /* operator */
#define ET_STR 4 /* string */
#define ET_TBL 5 /* a table, the content is a pointer */
#define ET_FUNC 6 /* a function */
#define ET_SYM 7 /* symbol ("string") */
#define ET_VSYM 8 /* variable symbol ("$s?") */
/* we treat parenthesis and brackets */
/* special to keep a pointer to their */
/* match in the content */
#define ET_LP 9 /* left parenthesis */
#define ET_LB 10 /* left bracket */
#define ET_II 11 /* and integer inlet */
#define ET_FI 12 /* float inlet */
#define ET_SI 13 /* string inlet */
#define ET_VI 14 /* signal inlet */
#define ET_VEC 15 /* allocated signal vector */
/* special types for fexpr~ */
#define ET_YO 16 /* vector output for fexpr~ */
#define ET_YOM1 17 /* shorthand for $y?[-1] */
#define ET_XI 18 /* vector input for fexpr~ */
#define ET_XI0 20 /* shorthand for $x?[0] */
#define ET_VAR 21 /* variable */
/* defines for ex_flags */
#define EF_TYPE_MASK 0x07 /* first three bits define the type of expr */
#define EF_EXPR 0x01 /* expr - control in and out */
#define EF_EXPR_TILDE 0x02 /* expr~ signal and control in, signal out */
#define EF_FEXPR_TILDE 0x04 /* fexpr~ filter expression */
#define EF_STOP 0x08 /* is it stopped used for expr~ and fexpr~ */
#define EF_VERBOSE 0x10 /* verbose mode */
#define IS_EXPR(x) ((((x)->exp_flags&EF_TYPE_MASK)|EF_EXPR) == EF_EXPR)
#define IS_EXPR_TILDE(x) \
((((x)->exp_flags&EF_TYPE_MASK)|EF_EXPR_TILDE)==EF_EXPR_TILDE)
#define IS_FEXPR_TILDE(x) \
((((x)->exp_flags&EF_TYPE_MASK)|EF_FEXPR_TILDE)==EF_FEXPR_TILDE)
#define SET_EXPR(x) (x)->exp_flags |= EF_EXPR; \
(x)->exp_flags &= ~EF_EXPR_TILDE; \
(x)->exp_flags &= ~EF_FEXPR_TILDE;
#define SET_EXPR_TILDE(x) (x)->exp_flags &= ~EF_EXPR; \
(x)->exp_flags |= EF_EXPR_TILDE; \
(x)->exp_flags &= ~EF_FEXPR_TILDE;
#define SET_FEXPR_TILDE(x) (x)->exp_flags &= ~EF_EXPR; \
(x)->exp_flags &= ~EF_EXPR_TILDE; \
(x)->exp_flags |= EF_FEXPR_TILDE;
/*
* defines for expr_error
*/
#define EE_DZ 0x01 /* divide by zero error */
#define EE_BI_OUTPUT 0x02 /* Bad output index */
#define EE_BI_INPUT 0x04 /* Bad input index */
#define EE_NOTABLE 0x08 /* NO TABLE */
#define EE_NOVAR 0x10 /* NO VARIABLE */
typedef struct expr {
#ifdef PD
t_object exp_ob;
#else /* MSP */
t_pxobject exp_ob;
#endif
int exp_flags; /* are we expr~, fexpr~, or expr */
int exp_error; /* reported errors */
int exp_nexpr; /* number of expressions */
char *exp_string; /* the full expression string */
char *exp_str; /* current parsing position */
t_outlet *exp_outlet[MAX_VARS];
#ifdef PD
struct _exprproxy *exp_proxy;
#else /* MAX */
void *exp_proxy[MAX_VARS];
long exp_proxy_id;
#endif
struct ex_ex *exp_stack[MAX_VARS];
struct ex_ex exp_var[MAX_VARS];
struct ex_ex exp_res[MAX_VARS]; /* the evluation result */
t_float *exp_p_var[MAX_VARS];
t_float *exp_p_res[MAX_VARS]; /* the previous evaluation result */
t_float *exp_tmpres[MAX_VARS]; /* temporty result for fexpr~ */
int exp_vsize; /* the size of the signal vector */
int exp_nivec; /* # of vector inlets */
t_float exp_f; /* control value to be transformed to signal */
} t_expr;
typedef struct ex_funcs {
char *f_name; /* function name */
void (*f_func)(t_expr *, long, struct ex_ex *, struct ex_ex *);
/* the real function performing the function (void, no return!!!) */
long f_argc; /* number of arguments */
} t_ex_func;
/* function prototypes for pd-related functions called withing vexp.h */
extern int
max_ex_tab_store(struct expr *expr, t_symbol *s, struct ex_ex *arg,
struct ex_ex *rval, struct ex_ex *optr);
extern int
max_ex_tab(struct expr *expr, t_symbol *s, struct ex_ex *arg,
struct ex_ex *optr);
extern int max_ex_var(struct expr *expr, t_symbol *s, struct ex_ex *optr,
int idx);
extern int max_ex_var_store(struct expr *, t_symbol *, struct ex_ex *, struct ex_ex *);
extern int ex_getsym(char *p, t_symbol **s);
extern const char *ex_symname(t_symbol *s);
void ex_mkvector(t_float *fp, t_float x, int size);
extern void ex_size(t_expr *expr, long int argc, struct ex_ex *argv,
struct ex_ex *optr);
extern void ex_sum(t_expr *expr, long int argc, struct ex_ex *argv, struct ex_ex *optr);
extern void ex_Sum(t_expr *expr, long int argc, struct ex_ex *argv, struct ex_ex *optr);
extern void ex_avg(t_expr *expr, long int argc, struct ex_ex *argv, struct ex_ex *optr);
extern void ex_Avg(t_expr *expr, long int argc, struct ex_ex *argv, struct ex_ex *optr);
extern void ex_store(t_expr *expr, long int argc, struct ex_ex *argv, struct ex_ex *optr);
int value_getonly(t_symbol *s, t_float *f);
/* These pragmas are only used for MSVC, not MinGW or Cygwin <hans@at.or.at> */
#ifdef _MSC_VER
#pragma warning (disable: 4305 4244)
#endif
#ifdef _WIN32
#define abort ABORT
void ABORT(void);
#endif
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