/* Editor's note:
 * This file is brought over from the pd source repo, so the following
 * license reference is not quite valid.
 *
 * This file is not covered by the MIT License mentioned elsewhere in this
 * git repo (`github.com/rknLA/squarescale`).  To avoid confusion, the original
 * license is included below, and applies only to this file (not any of the
 * other files in this git repo).
 *
 * - rknLA
 */

/* Copyright (c) 1997-1999 Miller Puckette.
* For information on usage and redistribution, and for a DISCLAIMER OF ALL
* WARRANTIES, see the file, "LICENSE.txt," in this distribution.  */

/*
 * LICENSE.txt contents:
This software is copyrighted by Miller Puckette and others.  The following
terms (the "Standard Improved BSD License") apply to all files associated with
the software unless explicitly disclaimed in individual files:

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:

1. Redistributions of source code must retain the above copyright
   notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above  
   copyright notice, this list of conditions and the following 
   disclaimer in the documentation and/or other materials provided
   with the distribution.
3. The name of the author may not be used to endorse or promote
   products derived from this software without specific prior 
   written permission.

THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR
BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,   
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
THE POSSIBILITY OF SUCH DAMAGE.
 *
 */


#ifndef __m_pd_h_

#if defined(_LANGUAGE_C_PLUS_PLUS) || defined(__cplusplus)
extern "C" {
#endif

#define PD_MAJOR_VERSION 0
#define PD_MINOR_VERSION 43
#define PD_BUGFIX_VERSION 4
#define PD_TEST_VERSION "extended"

/* old name for "MSW" flag -- we have to take it for the sake of many old
"nmakefiles" for externs, which will define NT and not MSW */
#if defined(NT) && !defined(MSW)
#define MSW
#endif

/* These pragmas are only used for MSVC, not MinGW or Cygwin <hans@at.or.at> */
#ifdef _MSC_VER
/* #pragma warning( disable : 4091 ) */
#pragma warning( disable : 4305 )  /* uncast const double to float */
#pragma warning( disable : 4244 )  /* uncast float/int conversion etc. */
#pragma warning( disable : 4101 )  /* unused automatic variables */
#endif /* _MSC_VER */

    /* the external storage class is "extern" in UNIX; in MSW it's ugly. */
#ifdef _WIN32
#ifdef PD_INTERNAL
#define EXTERN __declspec(dllexport) extern
#else
#define EXTERN __declspec(dllimport) extern
#endif /* PD_INTERNAL */
#else
#define EXTERN extern
#endif /* _WIN32 */

    /* and depending on the compiler, hidden data structures are
    declared differently: */
#if defined( __GNUC__) || defined( __BORLANDC__ ) || defined( __MWERKS__ )
#define EXTERN_STRUCT struct
#else
#define EXTERN_STRUCT extern struct
#endif

/* Define some attributes, specific to the compiler */
#if defined(__GNUC__)
#define ATTRIBUTE_FORMAT_PRINTF(a, b) __attribute__ ((format (printf, a, b)))
#else
#define ATTRIBUTE_FORMAT_PRINTF(a, b)
#endif

#if !defined(_SIZE_T) && !defined(_SIZE_T_)
#include <stddef.h>     /* just for size_t -- how lame! */
#endif

/* Microsoft Visual Studio is not C99, it does not provide stdint.h */
#ifdef _MSC_VER
typedef signed __int8     int8_t;
typedef signed __int16    int16_t;
typedef signed __int32    int32_t;
typedef signed __int64    int64_t;
typedef unsigned __int8   uint8_t;
typedef unsigned __int16  uint16_t;
typedef unsigned __int32  uint32_t;
typedef unsigned __int64  uint64_t;
#elif defined(IRIX)
typedef long int32_t;  /* a data type that has 32 bits */
#else
# include <stdint.h>
#endif

/* for FILE, needed by sys_fopen() and sys_fclose() only */
#include <stdio.h>

#define MAXPDSTRING 1000        /* use this for anything you want */
#define MAXPDARG 5              /* max number of args we can typecheck today */

/* signed and unsigned integer types the size of a pointer:  */
#if !defined(PD_LONGINTTYPE)
#define PD_LONGINTTYPE long
#endif

#if !defined(PD_FLOAT_PRECISION)
  /* normally, our floats (t_float, t_sample,...) are 32bit */
# define PD_FLOAT_PRECISION 32
#endif

#if PD_FLOAT_PRECISION == 32
# define PD_FLOATTYPE float
/* an unsigned int of the same size as FLOATTYPE: */
# define PD_FLOATUINTTYPE unsigned int

#elif PD_FLOAT_PRECISION == 64
# define PD_FLOATTYPE double
# define PD_FLOATUINTTYPE unsigned long
#else
# error invalid FLOATSIZE: must be 32 or 64
#endif

typedef PD_LONGINTTYPE t_int;       /* pointer-size integer */
typedef PD_FLOATTYPE t_float;       /* a float type at most the same size */
typedef PD_FLOATTYPE t_floatarg;    /* float type for function calls */

typedef struct _symbol
{
    char *s_name;
    struct _class **s_thing;
    struct _symbol *s_next;
} t_symbol;

EXTERN_STRUCT _array;
#define t_array struct _array       /* g_canvas.h */

/* pointers to glist and array elements go through a "stub" which sticks
around after the glist or array is freed.  The stub itself is deleted when
both the glist/array is gone and the refcount is zero, ensuring that no
gpointers are pointing here. */

#define GP_NONE 0       /* the stub points nowhere (has been cut off) */
#define GP_GLIST 1      /* the stub points to a glist element */
#define GP_ARRAY 2      /* ... or array */

typedef struct _gstub
{
    union
    {
        struct _glist *gs_glist;    /* glist we're in */
        struct _array *gs_array;    /* array we're in */
    } gs_un;
    int gs_which;                   /* GP_GLIST/GP_ARRAY */
    int gs_refcount;                /* number of gpointers pointing here */
} t_gstub;

typedef struct _gpointer           /* pointer to a gobj in a glist */
{
    union
    {   
        struct _scalar *gp_scalar;  /* scalar we're in (if glist) */
        union word *gp_w;           /* raw data (if array) */
    } gp_un;
    int gp_valid;                   /* number which must match gpointee */
    t_gstub *gp_stub;               /* stub which points to glist/array */
} t_gpointer;

#define PD_BLOBS 1 /* MP20070211 Use this to test for blob capability */
/* MP20061223 blob type: */
typedef struct _blob /* pointer to a blob */
{
   unsigned long s_length; /* length of blob in bytes */
   unsigned char *s_data; /* pointer to 1st byte of blob */
} t_blob;
/* ...MP20061223 blob type */


typedef union word
{
    t_float w_float;
    t_symbol *w_symbol;
    t_gpointer *w_gpointer;
    t_array *w_array;
    struct _glist *w_list;
    int w_index;
    t_blob *w_blob; /* MP20061223 blob type */
} t_word;

typedef enum
{
    A_NULL,
    A_FLOAT,
    A_SYMBOL,
    A_POINTER,
    A_SEMI,
    A_COMMA,
    A_DEFFLOAT,
    A_DEFSYM,
    A_DOLLAR, 
    A_DOLLSYM,
    A_GIMME,
    A_CANT,
    A_BLOB /* MP20061223 blob type */
}  t_atomtype;

#define A_DEFSYMBOL A_DEFSYM    /* better name for this */

typedef struct _atom
{
    t_atomtype a_type;
    union word a_w;
} t_atom;

EXTERN_STRUCT _class;
#define t_class struct _class

EXTERN_STRUCT _outlet;
#define t_outlet struct _outlet

EXTERN_STRUCT _inlet;
#define t_inlet struct _inlet

EXTERN_STRUCT _binbuf;
#define t_binbuf struct _binbuf

EXTERN_STRUCT _clock;
#define t_clock struct _clock

EXTERN_STRUCT _outconnect;
#define t_outconnect struct _outconnect

EXTERN_STRUCT _glist;
#define t_glist struct _glist
#define t_canvas struct _glist  /* LATER lose this */

typedef t_class *t_pd;      /* pure datum: nothing but a class pointer */

typedef struct _gobj        /* a graphical object */
{
    t_pd g_pd;              /* pure datum header (class) */
    struct _gobj *g_next;   /* next in list */
} t_gobj;

typedef struct _scalar      /* a graphical object holding data */
{
    t_gobj sc_gobj;         /* header for graphical object */
    t_symbol *sc_template;  /* template name (LATER replace with pointer) */
    t_word sc_vec[1];       /* indeterminate-length array of words */
} t_scalar;

typedef struct _text        /* patchable object - graphical, with text */
{
    t_gobj te_g;                /* header for graphical object */
    t_binbuf *te_binbuf;        /* holder for the text */
    t_outlet *te_outlet;        /* linked list of outlets */
    t_inlet *te_inlet;          /* linked list of inlets */
    short te_xpix;              /* x&y location (within the toplevel) */
    short te_ypix;
    short te_width;             /* requested width in chars, 0 if auto */
    unsigned int te_type:2;     /* from defs below */
} t_text;

#define T_TEXT 0        /* just a textual comment */
#define T_OBJECT 1      /* a MAX style patchable object */
#define T_MESSAGE 2     /* a MAX stype message */
#define T_ATOM 3        /* a cell to display a number or symbol */

#define te_pd te_g.g_pd

   /* t_object is synonym for t_text (LATER unify them) */

typedef struct _text t_object;

#define ob_outlet te_outlet
#define ob_inlet te_inlet
#define ob_binbuf te_binbuf
#define ob_pd te_g.g_pd
#define ob_g te_g

typedef void (*t_method)(void);
typedef void *(*t_newmethod)( void);
typedef void (*t_gotfn)(void *x, ...);

/* ---------------- pre-defined objects and symbols --------------*/
EXTERN t_pd pd_objectmaker;     /* factory for creating "object" boxes */
EXTERN t_pd pd_canvasmaker;     /* factory for creating canvases */
EXTERN t_symbol s_pointer;
EXTERN t_symbol s_float;
EXTERN t_symbol s_symbol;
EXTERN t_symbol s_blob;
EXTERN t_symbol s_bang;
EXTERN t_symbol s_list;
EXTERN t_symbol s_anything;
EXTERN t_symbol s_signal;
EXTERN t_symbol s__N;
EXTERN t_symbol s__X;
EXTERN t_symbol s_x;
EXTERN t_symbol s_y;
EXTERN t_symbol s_;

/* --------- prototypes from the central message system ----------- */
EXTERN void pd_typedmess(t_pd *x, t_symbol *s, int argc, t_atom *argv);
EXTERN void pd_forwardmess(t_pd *x, int argc, t_atom *argv);
EXTERN t_symbol *gensym(const char *s);
EXTERN t_gotfn getfn(t_pd *x, t_symbol *s);
EXTERN t_gotfn zgetfn(t_pd *x, t_symbol *s);
EXTERN void nullfn(void);
EXTERN void pd_vmess(t_pd *x, t_symbol *s, char *fmt, ...);
#define mess0(x, s) ((*getfn((x), (s)))((x)))
#define mess1(x, s, a) ((*getfn((x), (s)))((x), (a)))
#define mess2(x, s, a,b) ((*getfn((x), (s)))((x), (a),(b)))
#define mess3(x, s, a,b,c) ((*getfn((x), (s)))((x), (a),(b),(c)))
#define mess4(x, s, a,b,c,d) ((*getfn((x), (s)))((x), (a),(b),(c),(d)))
#define mess5(x, s, a,b,c,d,e) ((*getfn((x), (s)))((x), (a),(b),(c),(d),(e)))
EXTERN void obj_list(t_object *x, t_symbol *s, int argc, t_atom *argv);
EXTERN t_pd *pd_newest(void);

/* --------------- memory management -------------------- */
EXTERN void *getbytes(size_t nbytes);
EXTERN void *getzbytes(size_t nbytes);
EXTERN void *copybytes(void *src, size_t nbytes);
EXTERN void freebytes(void *x, size_t nbytes);
EXTERN void *resizebytes(void *x, size_t oldsize, size_t newsize);

/* -------------------- atoms ----------------------------- */

#define SETSEMI(atom) ((atom)->a_type = A_SEMI, (atom)->a_w.w_index = 0)
#define SETCOMMA(atom) ((atom)->a_type = A_COMMA, (atom)->a_w.w_index = 0)
#define SETPOINTER(atom, gp) ((atom)->a_type = A_POINTER, \
    (atom)->a_w.w_gpointer = (gp))
#define SETFLOAT(atom, f) ((atom)->a_type = A_FLOAT, (atom)->a_w.w_float = (f))
#define SETSYMBOL(atom, s) ((atom)->a_type = A_SYMBOL, \
    (atom)->a_w.w_symbol = (s))
#define SETBLOB(atom, st) ((atom)->a_type = A_BLOB, (atom)->a_w.w_blob = (st)) /* MP 20061226 blob type */
#define SETDOLLAR(atom, n) ((atom)->a_type = A_DOLLAR, \
    (atom)->a_w.w_index = (n))
#define SETDOLLSYM(atom, s) ((atom)->a_type = A_DOLLSYM, \
    (atom)->a_w.w_symbol= (s))

EXTERN t_float atom_getfloat(t_atom *a);
EXTERN t_int atom_getint(t_atom *a);
EXTERN t_symbol *atom_getsymbol(t_atom *a);
EXTERN t_blob *atom_getblob(t_atom *a);/* MP 20070108 blob type */
EXTERN t_symbol *atom_gensym(t_atom *a);
EXTERN t_float atom_getfloatarg(int which, int argc, t_atom *argv);
EXTERN t_int atom_getintarg(int which, int argc, t_atom *argv);
EXTERN t_symbol *atom_getsymbolarg(int which, int argc, t_atom *argv);

EXTERN void atom_string(t_atom *a, char *buf, unsigned int bufsize);

/* ------------------  binbufs --------------- */

EXTERN t_binbuf *binbuf_new(void);
EXTERN void binbuf_free(t_binbuf *x);
EXTERN t_binbuf *binbuf_duplicate(t_binbuf *y);

EXTERN void binbuf_text(t_binbuf *x, char *text, size_t size);
EXTERN void binbuf_gettext(t_binbuf *x, char **bufp, int *lengthp);
EXTERN void binbuf_clear(t_binbuf *x);
EXTERN void binbuf_add(t_binbuf *x, int argc, t_atom *argv);
EXTERN void binbuf_addv(t_binbuf *x, char *fmt, ...);
EXTERN void binbuf_addbinbuf(t_binbuf *x, t_binbuf *y);
EXTERN void binbuf_addsemi(t_binbuf *x);
EXTERN void binbuf_restore(t_binbuf *x, int argc, t_atom *argv);
EXTERN void binbuf_print(t_binbuf *x);
EXTERN int binbuf_getnatom(t_binbuf *x);
EXTERN t_atom *binbuf_getvec(t_binbuf *x);
EXTERN void binbuf_eval(t_binbuf *x, t_pd *target, int argc, t_atom *argv);
EXTERN int binbuf_read(t_binbuf *b, char *filename, char *dirname,
    int crflag);
EXTERN int binbuf_read_via_canvas(t_binbuf *b, char *filename, t_canvas *canvas,
    int crflag);
EXTERN int binbuf_read_via_path(t_binbuf *b, char *filename, char *dirname,
    int crflag);
EXTERN int binbuf_write(t_binbuf *x, char *filename, char *dir,
    int crflag);
EXTERN void binbuf_evalfile(t_symbol *name, t_symbol *dir);
EXTERN t_symbol *binbuf_realizedollsym(t_symbol *s, int ac, t_atom *av,
    int tonew);

/* ------------------  clocks --------------- */

EXTERN t_clock *clock_new(void *owner, t_method fn);
EXTERN void clock_set(t_clock *x, double systime);
EXTERN void clock_delay(t_clock *x, double delaytime);
EXTERN void clock_unset(t_clock *x);
EXTERN double clock_getlogicaltime(void);
EXTERN double clock_getsystime(void); /* OBSOLETE; use clock_getlogicaltime() */
EXTERN double clock_gettimesince(double prevsystime);
EXTERN double clock_getsystimeafter(double delaytime);
EXTERN void clock_free(t_clock *x);

/* ----------------- pure data ---------------- */
EXTERN t_pd *pd_new(t_class *cls);
EXTERN void pd_free(t_pd *x);
EXTERN void pd_bind(t_pd *x, t_symbol *s);
EXTERN void pd_unbind(t_pd *x, t_symbol *s);
EXTERN t_pd *pd_findbyclass(t_symbol *s, t_class *c);
EXTERN void pd_pushsym(t_pd *x);
EXTERN void pd_popsym(t_pd *x);
EXTERN t_symbol *pd_getfilename(void);
EXTERN t_symbol *pd_getdirname(void);
EXTERN void pd_bang(t_pd *x);
EXTERN void pd_pointer(t_pd *x, t_gpointer *gp);
EXTERN void pd_float(t_pd *x, t_float f);
EXTERN void pd_symbol(t_pd *x, t_symbol *s);
EXTERN void pd_blob(t_pd *x, t_blob *st); /* MP 20061226 blob type */
EXTERN void pd_list(t_pd *x, t_symbol *s, int argc, t_atom *argv);
EXTERN void pd_anything(t_pd *x, t_symbol *s, int argc, t_atom *argv);
#define pd_class(x) (*(x))

/* ----------------- pointers ---------------- */
EXTERN void gpointer_init(t_gpointer *gp);
EXTERN void gpointer_copy(const t_gpointer *gpfrom, t_gpointer *gpto);
EXTERN void gpointer_unset(t_gpointer *gp);
EXTERN int gpointer_check(const t_gpointer *gp, int headok);

/* ----------------- patchable "objects" -------------- */
EXTERN t_inlet *inlet_new(t_object *owner, t_pd *dest, t_symbol *s1,
    t_symbol *s2);
EXTERN t_inlet *pointerinlet_new(t_object *owner, t_gpointer *gp);
EXTERN t_inlet *floatinlet_new(t_object *owner, t_float *fp);
EXTERN t_inlet *symbolinlet_new(t_object *owner, t_symbol **sp);
EXTERN t_inlet *signalinlet_new(t_object *owner, t_float f);
EXTERN void inlet_free(t_inlet *x);

EXTERN t_outlet *outlet_new(t_object *owner, t_symbol *s);
EXTERN void outlet_bang(t_outlet *x);
EXTERN void outlet_pointer(t_outlet *x, t_gpointer *gp);
EXTERN void outlet_float(t_outlet *x, t_float f);
EXTERN void outlet_symbol(t_outlet *x, t_symbol *s);
EXTERN void outlet_blob(t_outlet *x, t_blob *st); /* MP 20061226 blob type */
EXTERN void outlet_list(t_outlet *x, t_symbol *s, int argc, t_atom *argv);
EXTERN void outlet_anything(t_outlet *x, t_symbol *s, int argc, t_atom *argv);
EXTERN t_symbol *outlet_getsymbol(t_outlet *x);
EXTERN void outlet_free(t_outlet *x);
EXTERN t_object *pd_checkobject(t_pd *x);


/* -------------------- canvases -------------- */

EXTERN void glob_setfilename(void *dummy, t_symbol *name, t_symbol *dir);

EXTERN void canvas_setargs(int argc, t_atom *argv);
EXTERN void canvas_getargs(int *argcp, t_atom **argvp);
EXTERN t_symbol *canvas_getcurrentdir(void);
EXTERN t_glist *canvas_getcurrent(void);
EXTERN void canvas_makefilename(t_glist *c, char *file,
    char *result,int resultsize);
EXTERN t_symbol *canvas_getdir(t_glist *x);
EXTERN char sys_font[]; /* default typeface set in s_main.c */
EXTERN char sys_fontweight[]; /* default font weight set in s_main.c */
EXTERN int sys_fontwidth(int fontsize);
EXTERN int sys_fontheight(int fontsize);
EXTERN void canvas_dataproperties(t_glist *x, t_scalar *sc, t_binbuf *b);
EXTERN int canvas_open(t_canvas *x, const char *name, const char *ext,
    char *dirresult, char **nameresult, unsigned int size, int bin);

/* ---------------- widget behaviors ---------------------- */

EXTERN_STRUCT _widgetbehavior;
#define t_widgetbehavior struct _widgetbehavior

EXTERN_STRUCT _parentwidgetbehavior;
#define t_parentwidgetbehavior struct _parentwidgetbehavior
EXTERN t_parentwidgetbehavior *pd_getparentwidget(t_pd *x);

/* -------------------- classes -------------- */

#define CLASS_DEFAULT 0         /* flags for new classes below */
#define CLASS_PD 1
#define CLASS_GOBJ 2
#define CLASS_PATCHABLE 3
#define CLASS_NOINLET 8

#define CLASS_TYPEMASK 3


EXTERN t_class *class_new(t_symbol *name, t_newmethod newmethod,
    t_method freemethod, size_t size, int flags, t_atomtype arg1, ...);
EXTERN void class_addcreator(t_newmethod newmethod, t_symbol *s, 
    t_atomtype type1, ...);
EXTERN void class_addmethod(t_class *c, t_method fn, t_symbol *sel,
    t_atomtype arg1, ...);
EXTERN void class_addbang(t_class *c, t_method fn);
EXTERN void class_addpointer(t_class *c, t_method fn);
EXTERN void class_doaddfloat(t_class *c, t_method fn);
EXTERN void class_addsymbol(t_class *c, t_method fn);
EXTERN void class_addblob(t_class *c, t_method fn);/* MP 20061226 blob type */
EXTERN void class_addlist(t_class *c, t_method fn);
EXTERN void class_addanything(t_class *c, t_method fn);
EXTERN void class_sethelpsymbol(t_class *c, t_symbol *s);
EXTERN void class_setwidget(t_class *c, t_widgetbehavior *w);
EXTERN void class_setparentwidget(t_class *c, t_parentwidgetbehavior *w);
EXTERN t_parentwidgetbehavior *class_parentwidget(t_class *c);
EXTERN char *class_getname(t_class *c);
EXTERN char *class_gethelpname(t_class *c);
EXTERN void class_setdrawcommand(t_class *c);
EXTERN int class_isdrawcommand(t_class *c);
EXTERN void class_domainsignalin(t_class *c, int onset);
EXTERN void class_set_extern_dir(t_symbol *s);
#define CLASS_MAINSIGNALIN(c, type, field) \
    class_domainsignalin(c, (char *)(&((type *)0)->field) - (char *)0)

         /* prototype for functions to save Pd's to a binbuf */
typedef void (*t_savefn)(t_gobj *x, t_binbuf *b);
EXTERN void class_setsavefn(t_class *c, t_savefn f);
EXTERN t_savefn class_getsavefn(t_class *c);
        /* prototype for functions to open properties dialogs */
typedef void (*t_propertiesfn)(t_gobj *x, struct _glist *glist);
EXTERN void class_setpropertiesfn(t_class *c, t_propertiesfn f);
EXTERN t_propertiesfn class_getpropertiesfn(t_class *c);

#ifndef PD_CLASS_DEF
#define class_addbang(x, y) class_addbang((x), (t_method)(y))
#define class_addpointer(x, y) class_addpointer((x), (t_method)(y))
#define class_addfloat(x, y) class_doaddfloat((x), (t_method)(y))
#define class_addsymbol(x, y) class_addsymbol((x), (t_method)(y))
#define class_addblob(x, y) class_addblob((x), (t_method)(y)) /* MP20061226 blob type */
#define class_addlist(x, y) class_addlist((x), (t_method)(y))
#define class_addanything(x, y) class_addanything((x), (t_method)(y))
#endif

/* ------------   printing --------------------------------- */
EXTERN void post(const char *fmt, ...);
EXTERN void startpost(const char *fmt, ...);
EXTERN void poststring(const char *s);
EXTERN void postfloat(t_floatarg f);
EXTERN void postatom(int argc, t_atom *argv);
EXTERN void endpost(void);
EXTERN void error(const char *fmt, ...) ATTRIBUTE_FORMAT_PRINTF(1, 2);
EXTERN void verbose(int level, const char *fmt, ...) ATTRIBUTE_FORMAT_PRINTF(2, 3);
EXTERN void bug(const char *fmt, ...) ATTRIBUTE_FORMAT_PRINTF(1, 2);
EXTERN void pd_error(void *object, const char *fmt, ...) ATTRIBUTE_FORMAT_PRINTF(2, 3);
EXTERN void logpost(const void *object, const int level, const char *fmt, ...)
    ATTRIBUTE_FORMAT_PRINTF(3, 4);
EXTERN void sys_logerror(const char *object, const char *s);
EXTERN void sys_unixerror(const char *object);
EXTERN void sys_ouch(void);


/* ------------  system interface routines ------------------- */
EXTERN int sys_isreadablefile(const char *name);
EXTERN int sys_isabsolutepath(const char *dir);
EXTERN void sys_bashfilename(const char *from, char *to);
EXTERN void sys_unbashfilename(const char *from, char *to);
EXTERN int open_via_path(const char *dir, const char *name, const char *ext,
    char *dirresult, char **nameresult, unsigned int size, int bin);
EXTERN int sched_geteventno(void);
EXTERN double sys_getrealtime(void);
EXTERN int (*sys_idlehook)(void);   /* hook to add idle time computation */

/* Win32's open()/fopen() do not handle UTF-8 filenames so we need
 * these internal versions that handle UTF-8 filenames the same across
 * all platforms.  They are recommended for use in external
 * objectclasses as well so they work with Unicode filenames on Windows */
EXTERN int sys_open(const char *path, int oflag, ...);
EXTERN int sys_close(int fd);
EXTERN FILE *sys_fopen(const char *filename, const char *mode);
EXTERN int sys_fclose(FILE *stream);

/* ------------  threading ------------------- */ 
EXTERN void sys_lock(void);
EXTERN void sys_unlock(void);
EXTERN int sys_trylock(void);


/* --------------- signals ----------------------------------- */

typedef PD_FLOATTYPE t_sample;
typedef union _sampleint_union {
  t_sample f;
  PD_FLOATUINTTYPE i;
} t_sampleint_union;
#define MAXLOGSIG 32
#define MAXSIGSIZE (1 << MAXLOGSIG)

typedef struct _signal
{
    int s_n;            /* number of points in the array */
    t_sample *s_vec;    /* the array */
    t_float s_sr;         /* sample rate */
    int s_refcount;     /* number of times used */
    int s_isborrowed;   /* whether we're going to borrow our array */
    struct _signal *s_borrowedfrom;     /* signal to borrow it from */
    struct _signal *s_nextfree;         /* next in freelist */
    struct _signal *s_nextused;         /* next in used list */
    int s_vecsize;      /* allocated size of array in points */
} t_signal;

typedef t_int *(*t_perfroutine)(t_int *args);

EXTERN t_int *plus_perform(t_int *args);
EXTERN t_int *zero_perform(t_int *args);
EXTERN t_int *copy_perform(t_int *args);

EXTERN void dsp_add_plus(t_sample *in1, t_sample *in2, t_sample *out, int n);
EXTERN void dsp_add_copy(t_sample *in, t_sample *out, int n);
EXTERN void dsp_add_scalarcopy(t_float *in, t_sample *out, int n);
EXTERN void dsp_add_zero(t_sample *out, int n);

EXTERN int sys_getblksize(void);
EXTERN t_float sys_getsr(void);
EXTERN int sys_get_inchannels(void);
EXTERN int sys_get_outchannels(void);

EXTERN void dsp_add(t_perfroutine f, int n, ...);
EXTERN void dsp_addv(t_perfroutine f, int n, t_int *vec);
EXTERN void pd_fft(t_float *buf, int npoints, int inverse);
EXTERN int ilog2(int n);

EXTERN void mayer_fht(t_sample *fz, int n);
EXTERN void mayer_fft(int n, t_sample *real, t_sample *imag);
EXTERN void mayer_ifft(int n, t_sample *real, t_sample *imag);
EXTERN void mayer_realfft(int n, t_sample *real);
EXTERN void mayer_realifft(int n, t_sample *real);

EXTERN float *cos_table;
#define LOGCOSTABSIZE 9
#define COSTABSIZE (1<<LOGCOSTABSIZE)

EXTERN int canvas_suspend_dsp(void);
EXTERN void canvas_resume_dsp(int oldstate);
EXTERN void canvas_update_dsp(void);
EXTERN int canvas_dspstate;

/*   up/downsampling */
typedef struct _resample
{
  int method;       /* up/downsampling method ID */

  t_int downsample; /* downsampling factor */
  t_int upsample;   /* upsampling factor */

  t_sample *s_vec;   /* here we hold the resampled data */
  int      s_n;

  t_sample *coeffs;  /* coefficients for filtering... */
  int      coefsize;

  t_sample *buffer;  /* buffer for filtering */
  int      bufsize;
} t_resample;

EXTERN void resample_init(t_resample *x);
EXTERN void resample_free(t_resample *x);

EXTERN void resample_dsp(t_resample *x, t_sample *in, int insize, t_sample *out, int outsize, int method);
EXTERN void resamplefrom_dsp(t_resample *x, t_sample *in, int insize, int outsize, int method);
EXTERN void resampleto_dsp(t_resample *x, t_sample *out, int insize, int outsize, int method);

/* ----------------------- utility functions for signals -------------- */
EXTERN t_float mtof(t_float);
EXTERN t_float ftom(t_float);
EXTERN t_float rmstodb(t_float);
EXTERN t_float powtodb(t_float);
EXTERN t_float dbtorms(t_float);
EXTERN t_float dbtopow(t_float);

EXTERN t_float q8_sqrt(t_float);
EXTERN t_float q8_rsqrt(t_float);
#ifndef N32     
EXTERN t_float qsqrt(t_float);  /* old names kept for extern compatibility */
EXTERN t_float qrsqrt(t_float);
#endif
/* --------------------- data --------------------------------- */

    /* graphical arrays */
EXTERN_STRUCT _garray;
#define t_garray struct _garray

EXTERN t_class *garray_class;
EXTERN int garray_getfloatarray(t_garray *x, int *size, t_float **vec);
EXTERN int garray_getfloatwords(t_garray *x, int *size, t_word **vec);
EXTERN void garray_redraw(t_garray *x);
EXTERN int garray_npoints(t_garray *x);
EXTERN char *garray_vec(t_garray *x);
EXTERN void garray_resize(t_garray *x, t_floatarg f);  /* avoid; use this: */
EXTERN void garray_resize_long(t_garray *x, long n);   /* better version */
EXTERN void garray_usedindsp(t_garray *x);
EXTERN void garray_setsaveit(t_garray *x, int saveit);
EXTERN t_class *scalar_class;

EXTERN t_float *value_get(t_symbol *s);
EXTERN void value_release(t_symbol *s);
EXTERN int value_getfloat(t_symbol *s, t_float *f);
EXTERN int value_setfloat(t_symbol *s, t_float f);

/* ------- GUI interface - functions to send strings to TK --------- */
typedef void (*t_guicallbackfn)(t_gobj *client, t_glist *glist);

EXTERN void sys_vgui(char *fmt, ...);
EXTERN void sys_gui(char *s);
EXTERN void sys_pretendguibytes(int n);
EXTERN void sys_queuegui(void *client, t_glist *glist, t_guicallbackfn f);
EXTERN void sys_unqueuegui(void *client);
    /* dialog window creation and destruction */
EXTERN void gfxstub_new(t_pd *owner, void *key, const char *cmd);
EXTERN void gfxstub_deleteforkey(void *key);

extern t_class *glob_pdobject;  /* object to send "pd" messages */

/*-------------  Max 0.26 compatibility --------------------*/

/* the following reflects the new way classes are laid out, with the class
   pointing to the messlist and not vice versa. Externs shouldn't feel it. */
typedef t_class *t_externclass;

EXTERN void c_extern(t_externclass *cls, t_newmethod newroutine,
    t_method freeroutine, t_symbol *name, size_t size, int tiny, \
    t_atomtype arg1, ...);
EXTERN void c_addmess(t_method fn, t_symbol *sel, t_atomtype arg1, ...);

#define t_getbytes getbytes
#define t_freebytes freebytes
#define t_resizebytes resizebytes
#define typedmess pd_typedmess
#define vmess pd_vmess

/* A definition to help gui objects straddle 0.34-0.35 changes.  If this is
defined, there is a "te_xpix" field in objects, not a "te_xpos" as before: */

#define PD_USE_TE_XPIX

#if defined(__i386__) || defined(__x86_64__)
/* a test for NANs and denormals.  Should only be necessary on i386. */
# if PD_FLOAT_PRECISION == 32
static inline int PD_BADFLOAT(t_sample f) {
  t_sampleint_union u;
  u.f=f;
  return ((u.i & 0x7f800000)==0) || ((u.i&0x7f800000)==0x7f800000);
}
/* more stringent test: anything not between 1e-19 and 1e19 in absolute val */
static inline int PD_BIGORSMALL(t_sample f) {
  t_sampleint_union u;
  u.f=f;
  return ((u.i & 0x60000000)==0) || ((u.i & 0x60000000)==0x60000000);
}
# else
#  warning 64bit mode: BIGORSMALL not implemented yet
#  define PD_BADFLOAT(f) 0
#  define PD_BIGORSMALL(f) 0
# endif
#else
# define PD_BADFLOAT(f) 0
# define PD_BIGORSMALL(f) 0
#endif

    /* get version number at run time */
EXTERN void sys_getversion(int *major, int *minor, int *bugfix);

#if defined(_LANGUAGE_C_PLUS_PLUS) || defined(__cplusplus)
}
#endif

#define __m_pd_h_
#endif /* __m_pd_h_ */
