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xschem/src/xschem.h

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/* File: xschem.h
*
* This file is part of XSCHEM,
* a schematic capture and Spice/Vhdl/Verilog netlisting tool for circuit
* simulation.
* Copyright (C) 1998-2021 Stefan Frederik Schippers
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef CADGLOBALS
#define CADGLOBALS
#define XSCHEM_VERSION "3.0.0"
#define XSCHEM_FILE_VERSION "1.2"
#if HAS_PIPE == 1
/* fdopen() */
#define _POSIX_C_SOURCE 200112L
#endif
#if HAS_POPEN==1
/* popen() , pclose(), */
#define _POSIX_C_SOURCE 200112L
#endif
#define TCL_WIDE_INT_TYPE long
#if (defined(__APPLE__) && defined(__MACH__))
#define __unix__
#endif
/* approximate PI definition */
#define XSCH_PI 3.14159265358979323846264338327950288419716939937
#ifdef __unix__
#include "../config.h"
#else
#include "../XSchemWin/config.h"
#endif
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <string.h>
#include <ctype.h>
#include <limits.h> /* PATH_MAX */
#ifndef PATH_MAX
#define PATH_MAX 4096
#endif
#ifdef __unix__
#include <unistd.h>
#include <regex.h>
#else
#include <windows.h>
#include "tkWin.h"
#endif
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <time.h>
/* #include <sys/time.h> for gettimeofday(). use time() instead */
#include <signal.h>
#ifdef __unix__
#if HAS_XRENDER==1
#include <X11/extensions/Xrender.h>
#endif
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/keysymdef.h>
#include <X11/keysym.h>
#include <X11/Xatom.h>
#include <X11/xpm.h>
#define xunlink unlink
#define xfseek fseek
#define xftell ftell
#else
#include <tkWinInt.h>
#define xunlink _unlink
#define MOUSE_WHEEL_UP 38
extern int XSetClipRectangles(register Display* dpy, GC gc, int clip_x_origin,
int clip_y_origin, XRectangle* rectangles, int n, int ordering);
extern int XSetTile(Display* display, GC gctiled, Pixmap s_pixmap);
extern void change_to_unix_fn(char* fn);
extern char win_temp_dir[PATH_MAX];
#define xfseek _fseeki64
#define xftell _ftelli64
#endif
#if HAS_CAIRO==1
#include <cairo.h>
#include <cairo-xlib.h>
#include "cairo-xlib-xrender.h"
#endif
#include <tcl.h>
#include <tk.h>
#define CADHEIGHT 700 /* initial window size */
#define CADWIDTH 1000
/* max number of windows (including main) a single xschem process can handle */
#define MAX_NEW_WINDOWS 20
#define WINDOW_PATH_SIZE 30
#define BACKLAYER 0
#define WIRELAYER 1
#define GRIDLAYER 2
#define SELLAYER 2
#define PROPERTYLAYER 1
#define TEXTLAYER 3
#define TEXTWIRELAYER 1 /* color for wire name labels / pins */
#define SYMLAYER 4
#define PINLAYER 5
#define GENERICLAYER 3
#define CADSNAP 10.0
#define CADGRID 20.0
#define CADGRIDTHRESHOLD 10.0
#define CADGRIDMULTIPLY 2.0
#define CADINITIALZOOM 1
#define CADINITIALX 10
#define CADINITIALY -870
#define CADZOOMSTEP 1.2
#define CADMOVESTEP 200
#define CADMAXZOOM 1000000.0
#define CADMINZOOM 0.000001
#define CADHALFDOTSIZE 4
#define CADNULLNODE -1 /* no valid node number */
#define CADWIREMINDIST 8.0
#define CADMAXWIRES 4096
#define CADMAXTEXT 2048
#define CADMAXOBJECTS 512 /* (initial) max # of lines, rects (for each layer!!) */
#define MAXGROUP 300 /* (initial) max # of objects that can be drawn while moving */
#define ELEMINST 4096 /* (initial) max # of placed elements, was 600 20102004 */
#define ELEMDEF 256 /* (initial) max # of defined elements */
#define EMBEDDED 1 /* used for embedded symbols marking in Symbol.flags */
#define HILIGHT_CONN 4 /* used to hilight instances if connected wire is hilighted */
#define CADMAXGRIDPOINTS 512
#define CADMAXHIER 80
#define CADCHUNKALLOC 512 /* was 256 20102004 */
#define CADDRAWBUFFERSIZE 512
/* when x-width of drawing area s below this threshold use spatial */
/* hash table for drawing wires and instances (for faster lookup) instead of */
/* looping through the whole wire[] and inst[] arrays */
/* when drawing area is very big using spatial hash table may take longer than */
/* a simple for() loop through the big arrays + clip check. */
#define ITERATOR_THRESHOLD 42000.0
#define SCHEMATIC 1
#define SYMBOL 2
#define CAD_SPICE_NETLIST 1
#define CAD_VHDL_NETLIST 2
#define CAD_VERILOG_NETLIST 3
#define CAD_TEDAX_NETLIST 4
#define CAD_SYMBOL_ATTRS 5
#define STARTWIRE 1 /* possible states, encoded in global 'rubber' */
#define STARTRECT 4
#define STARTLINE 8
#define SELECTION 16 /* signals that some objects are selected. */
#define STARTSELECT 32 /* used for drawing a selection rectangle */
#define STARTMOVE 64 /* used for move/copy operations */
#define STARTCOPY 128 /* used for move/copy operations */
#define STARTZOOM 256 /* used for move/copy operations */
#define STARTMERGE 512 /* used fpr merge schematic/symbol */
#define MENUSTARTWIRE 1024 /* start wire invoked from menu */
#define MENUSTARTLINE 2048 /* start line invoked from menu */
#define MENUSTARTRECT 4096 /* start rect invoked from menu */
#define MENUSTARTZOOM 8192 /* start zoom box invoked from menu */
#define STARTPAN 16384 /* new pan method with mouse button3 */
#define PLACE_TEXT 32768
#define MENUSTARTSNAPWIRE 65536 /* start wire invoked from menu, snap to pin variant 20171022 */
#define STARTPOLYGON 131072
#define MENUSTARTPOLYGON 262144
#define STARTARC 524288
#define MENUSTARTARC 1048576
#define MENUSTARTCIRCLE 2097152
#define PLACE_SYMBOL 4194304 /* used in move_objects after place_symbol to avoid storing intermediate undo state */
#define START_SYMPIN 8388608
#define GRAPHPAN 16777216
#define SELECTED 1 /* used in the .sel field for selected objs. */
#define SELECTED1 2 /* first point selected... */
#define SELECTED2 4 /* second point selected... */
#define SELECTED3 8
#define SELECTED4 16
#define WIRE 1 /* types of defined objects */
#define xRECT 2
#define LINE 4
#define ELEMENT 8
#define xTEXT 16
#define POLYGON 32
#define ARC 64
/* for netlist.c */
#define BOXSIZE 400
#define NBOXES 100
#define MAX_UNDO 80
/* viewers xschem can generate plot commands for */
#define NGSPICE 1
#define GAW 2
#define BESPICE 3
/* some useful primes */
/* 109, 163, 251, 367, 557, 823, 1237, 1861, 2777, 4177, 6247, 9371, 14057 */
/* 21089, 31627, 47431, 71143, 106721, 160073, 240101, 360163, 540217, 810343 */
/* 1215497, 1823231, 2734867, 4102283, 6153409, 9230113, 13845163 */
#define HASHSIZE 31627
/* parameters passed to action functions, see actions.c */
#define END 1 /* endop */
#define START 2 /* begin placing something */
#define PLACE 4 /* place something */
#define ADD 8 /* add something */
#define RUBBER 16 /* used for drawing rubber objects while placing them */
#define NOW 32 /* used for immediate (unbuffered) graphic operations */
#define ROTATE 64
#define FLIP 128
#define SET 256 /* currently used in bbox() function (sets clip rect) */
#define ABORT 512 /* used in move/copy_objects for aborting without unselecting */
#define THICK 1024 /* used to draw thick lines (buses) */
#define ROTATELOCAL 2048 /* rotate each selected object around its own anchor point 20171208 */
#define CLEAR 4096 /* used in new_wire to clear previous rubber when switching xctx->manhattan_lines */
#define SET_INSIDE 8192 /* used in bbox() to set clipping rectangle inside, not adding line width */
/* #define DRAW 8192 */ /* was used in bbox() to draw things by using XCopyArea after setting clip rectangle */
#define HILIGHT 8192 /* used when calling draw_*symbol_outline() for hilighting instead of normal draw */
#define FONTWIDTH 20
#define FONTOFFSET 40
#define FONTHEIGHT 40
#define FONTDESCENT 15
#define FONTWHITESPACE 10
/* hash operations */
#define XINSERT 0
#define XLOOKUP 1
#define XDELETE 2
#define XINSERT_NOREPLACE 3 /* do not replace token value in hash if already present */
/* Cairo text flags (.flags field) */
#define TEXT_BOLD 1
#define TEXT_OBLIQUE 2
#define TEXT_ITALIC 4
/* flag (.flags field) to hide text in symbols when displaying instances */
#define SYM_HIDE_TEXT 8
#define S(a) (sizeof(a)/sizeof(char))
#define BUS_WIDTH 4
#define POINTINSIDE(xa,ya,x1,y1,x2,y2) \
(xa>=x1 && xa<=x2 && ya>=y1 && ya<=y2 )
#define RECT_INSIDE(xa,ya,xb,yb,x1,y1,x2,y2) \
(xa>=x1 && xa<=x2 && xb>=x1 && xb<=x2 && ya>=y1 && ya<=y2 && yb>=y1 && yb<=y2 )
#define RECT_OUTSIDE(xa,ya,xb,yb,x1,y1,x2,y2) \
( (xa) > (x2) || (xb) < (x1) || (ya) > (y2) || (yb) < (y1) )
#define ROTATION(rot, flip, x0, y0, x, y, rx, ry) \
{ \
double xxtmp = (flip ? 2 * x0 -x : x); \
if(rot==0) {rx = xxtmp; ry = y;} \
else if(rot==1) {rx = x0 - y + y0; ry = y0 + xxtmp - x0;} \
else if(rot==2) {rx = 2 * x0 - xxtmp; ry = 2 * y0 - y;} \
else {rx = x0 + y - y0; ry = y0 - xxtmp + x0;} \
}
#define ORDER(x1,y1,x2,y2) {\
double xxtmp; \
if(x2 < x1) {xxtmp=x1;x1=x2;x2=xxtmp;xxtmp=y1;y1=y2;y2=xxtmp;} \
else if(x2 == x1 && y2 < y1) {xxtmp=y1;y1=y2;y2=xxtmp;} \
}
#define RECTORDER(x1,y1,x2,y2) { \
double xxtmp; \
if(x2 < x1) {xxtmp = x1; x1 = x2; x2 = xxtmp;} \
if(y2 < y1) {xxtmp = y1; y1 = y2; y2 = xxtmp;} \
}
#define OUTSIDE(xa,ya,xb,yb,x1,y1,x2,y2) \
(xa>x2 || xb<x1 || ya>y2 || yb<y1 )
#define LINE_OUTSIDE(xa,ya,xb,yb,x1,y1,x2,y2) \
(xa>=x2 || xb<=x1 || ( (ya<yb)? (ya>=y2 || yb<=y1) : (yb>=y2 || ya<=y1) ) )
#define CLIP(x,a,b) (((x) < (a)) ? (a) : ((x) > (b)) ? (b) : (x))
#define MINOR(a,b) ( (a) <= (b) ? (a) : (b) )
#define IS_LABEL_SH_OR_PIN(type) (!(strcmp(type,"label") && strcmp(type,"ipin") && strcmp(type,"opin") && \
strcmp(type,"show_label") && strcmp(type,"iopin")))
#define IS_LABEL_OR_PIN(type) (!(strcmp(type,"label") && strcmp(type,"ipin") && strcmp(type,"opin") && strcmp(type,"iopin")))
#define IS_PIN(type) (!(strcmp(type,"ipin") && strcmp(type,"opin") && strcmp(type,"iopin")))
#define XSIGN(x) ( (x) < 0 ? -1 : 1)
#define XSIGN0(x) ( (x) < 0 ? -1 : (x) > 0 ? 1 : 0)
/* floor not needed? screen coordinates always positive <<<< */
/* #define X_TO_SCREEN(x) ( floor(((x)+xctx->xorigin)* xctx->mooz) ) */
/* #define Y_TO_SCREEN(y) ( floor(((y)+xctx->yorigin)* xctx->mooz) ) */
#define X_TO_SCREEN(x) ( ((x) + xctx->xorigin) * xctx->mooz )
#define Y_TO_SCREEN(y) ( ((y) + xctx->yorigin) * xctx->mooz )
#define X_TO_XSCHEM(x) ( (x) * xctx->zoom - xctx->xorigin )
#define Y_TO_XSCHEM(y) ( (y) * xctx->zoom - xctx->yorigin )
/* coordinate transformations graph to xschem */
#define W_X(x) (gr->cx * (x) + gr->dx)
#define W_Y(y) (gr->cy * (y) + gr->dy)
/* for digital waves */
#define DW_Y(y) (gr->dcy * (y) + gr->ddy)
/* coordinate transformations graph to screen */
#define S_X(x) (gr->scx * (x) + gr->sdx)
#define S_Y(y) (gr->scy * (y) + gr->sdy)
/* for digital waves */
#define DS_Y(y) (gr->dscy * (y) + gr->dsdy)
/* inverse graph transforms */
#define G_X(x) (((x) - gr->dx) / gr->cx)
#define G_Y(y) (((y) - gr->dy) / gr->cy)
/* for digital graphs (gr->ypos1, gr->ypos2 instead of gr->gy1, gr->gy2) */
#define DG_Y(y) (((y) - gr->ddy) / gr->dcy)
/* given a dest_string of size 'size', allocate space to make sure it can
* hold 'add' characters */
#define STR_ALLOC(dest_string, add, size) \
do { \
register int __str_alloc_tmp__ = add; \
if( __str_alloc_tmp__ >= *size) { \
*size = __str_alloc_tmp__ + CADCHUNKALLOC; \
my_realloc(1212, dest_string, *size); \
} \
} while(0)
#define INT_WIDTH(x) ( (int)(x) == 0 ? 1 : (int)(x) )
#define INT_BUS_WIDTH(x) ( (int)( (BUS_WIDTH) * (x) ) == 0 ? 1 : (int)( (BUS_WIDTH) * (x) ) )
/* set do double if you need more precision at the expense of memory */
#define SPICE_DATA float
#define DIG_NWAVES 0.1 /* inverse number: by default 10 digital traces per graph */
#define DIG_SPACE 0.07 /* trace extends from 0 to DIG_SPACE, so we have DIG_WAVES-DIG_SPACE
* spacing between traces */
typedef struct
{
unsigned short type;
int n;
unsigned int col;
} Selected;
typedef struct
{
double x1;
double x2;
double y1;
double y2;
short end1;
short end2;
short sel;
char *node;
char *prop_ptr;
short bus; /* 20171201 cache here wire "bus" property, to avoid too many get_tok_value() calls */
} xWire;
typedef struct
{
double x1;
double x2;
double y1;
double y2;
unsigned short sel;
char *prop_ptr;
short dash;
short bus;
} xLine;
typedef struct
{
double x1;
double x2;
double y1;
double y2;
unsigned short sel;
char *prop_ptr;
short dash;
unsigned short flags; /* bit0=1 for graph function, bit1=1 for unlocked x axis */
} xRect;
typedef struct
{
/* last point coincident to first, added by program if needed. */
/* XDrawLines needs first and last point to close the polygon */
int points;
double *x;
double *y;
unsigned short *selected_point;
unsigned short sel;
char *prop_ptr;
short fill;
short dash;
} xPoly;
typedef struct
{
double x;
double y;
double r;
double a; /* start angle */
double b; /* arc angle */
unsigned short sel;
char *prop_ptr;
short fill;
short dash;
} xArc;
typedef struct
{
char *txt_ptr;
double x0,y0;
short rot;
short flip;
short sel;
double xscale;
double yscale;
char *prop_ptr;
int layer; /* 20171201 for cairo */
short hcenter, vcenter;
char *font; /* 20171201 for cairo */
int flags;
} xText;
typedef struct
{
char *name;
double minx;
double maxx;
double miny;
double maxy;
xLine **line; /* array of [cadlayers] pointers to Line */
xRect **rect;
xPoly **poly;
xArc **arc;
xText *text;
int *lines; /* array of [cadlayers] integers */
int *rects;
int *polygons;
int *arcs;
int texts;
char *prop_ptr;
char *type;
char *templ;
int flags; /* bit 0: embedded flag
* bit 1: **free**
* bit 2: highight if connected wire highlighted */
} xSymbol;
typedef struct
{
char *name;/* symbol name (ex: devices/lab_pin) */
int ptr; /* was a pointer formerly... */
double x0; /* symbol origin / anchor point */
double y0;
double x1; /* symbol bounding box */
double y1;
double x2;
double y2;
double xx1; /* bounding box without texts */
double yy1;
double xx2;
double yy2;
short rot;
short flip;
short sel;
int color; /* hilight color */
short flags; /* bit 0: skip field,
* bit 1: flag for different textlayer for pin/labels,
* 1: ordinary symbol, 0: label/pin/show
* bit 2: highlight if connected net/label is highlighted */
char *prop_ptr;
char **node;
char *lab; /* lab attribute if any (pin/label) */
char *instname; /* 20150409 instance name (example: I23) */
} xInstance;
typedef struct
{
double x;
double y;
double zoom;
} Zoom;
typedef struct
{
char *function;
char *go_to;
int value;
short clock;
} Simdata_pin;
typedef struct
{
Simdata_pin *pin;
int npin;
} Simdata;
typedef struct
{
char *gptr;
char *vptr;
char *sptr;
char *kptr;
char *eptr;
int *lines;
int *rects;
int *polygons;
int *arcs;
int wires;
int texts;
int instances;
int symbols;
xLine **lptr;
xRect **bptr;
xPoly **pptr;
xArc **aptr;
xWire *wptr;
xText *tptr;
xInstance *iptr;
xSymbol *symptr;
} Undo_slot;
typedef struct
{ /* used for symbols containing schematics as instances (LCC, Local Custom Cell) */
double x0;
double y0;
short rot;
short flip;
FILE *fd;
char *prop_ptr;
char *symname;
} Lcc;
typedef struct {
int in;
int out;
int inout;
int port;
} Drivers;
/* instance name (refdes) hash table, for unique name checking */
typedef struct inst_hashentry Inst_hashentry;
struct inst_hashentry
{
struct inst_hashentry *next;
unsigned int hash;
char *token;
int value;
};
/* generic string hash table */
typedef struct str_hashentry Str_hashentry;
struct str_hashentry
{
struct str_hashentry *next;
unsigned int hash;
char *token;
char *value;
};
/* generic int hash table */
typedef struct int_hashentry Int_hashentry;
struct int_hashentry
{
struct int_hashentry *next;
unsigned int hash;
char *token;
int value;
};
typedef struct node_hashentry Node_hashentry;
struct node_hashentry
{
struct node_hashentry *next;
unsigned int hash;
char *token;
char *sig_type;
char *verilog_type;
char *value;
char *class;
char *orig_tok;
Drivers d;
};
typedef struct hilight_hashentry Hilight_hashentry;
struct hilight_hashentry
{
struct hilight_hashentry *next;
unsigned int hash;
char *token;
char *path; /* hierarchy path */
int oldvalue; /* used for FF simulation */
int value; /* hilight color */
int time; /*delta-time for sims */
};
/* for netlist.c */
typedef struct instpinentry Instpinentry;
struct instpinentry
{
struct instpinentry *next;
double x0,y0;
int n;
int pin;
};
typedef struct wireentry Wireentry;
struct wireentry
{
struct wireentry *next;
int n;
};
typedef struct instentry Instentry;
struct instentry
{
struct instentry *next;
int n;
};
typedef struct
{
int x1a, x2a;
int y1a, y2a;
int i, j, counti, countj;
int tmpi, tmpj;
Instentry *instanceptr;
Wireentry *wireptr;
unsigned short *instflag;
unsigned short *wireflag;
} Iterator_ctx;
/* context struct for waveform graphs */
typedef struct {
double digital;
double rx1, ry1, rx2, ry2, rw, rh; /* container rectangle */
double sx1, sy1, sx2, sy2; /* screen coordinates of above */
/* graph box (smaller than rect container due to margins) */
double x1, y1, x2, y2, w, h;
double gx1, gy1, gx2, gy2, gw, gh;
double master_gx1, master_gx2, master_gw;
/* y area range for digital graphs */
double ypos1, ypos2, posh;
double marginx; /* will be recalculated later */
double marginy; /* will be recalculated later */
/* coefficients for graph to container coordinate transformations W_X() and W_Y()*/
double cx, dx, cy, dy;
/* y-axis transform for digital graphs */
double dcy, ddy;
/* direct graph->screen transform */
double scx, sdx, scy, sdy;
double dscy, dsdy;
int divx;
int divy;
int subdivx;
int subdivy;
double unitx;
double unity;
int unitx_suffix; /* 'n' or 'u' or 'M' or 'k' ... */
int unity_suffix;
double txtsizelab, digtxtsizelab, txtsizey, txtsizex;
int dataset;
} Graph_ctx;
typedef struct {
xWire *wire;
xText *text;
xRect **rect;
xLine **line;
xPoly **poly;
xArc **arc;
xInstance *inst;
xSymbol *sym;
int sym_txt;
int wires;
int instances;
int symbols;
int texts;
int *rects;
int *polygons;
int *arcs;
int *lines;
int *maxr;
int *maxp;
int *maxa;
int *maxl;
int maxt;
int maxw;
int maxi;
int maxs;
char *schprop;
char *schtedaxprop;
char *schvhdlprop;
char *schsymbolprop;
char *schverilogprop;
char sch[CADMAXHIER][PATH_MAX];
int currsch;
char *version_string;
char current_name[PATH_MAX];
char file_version[100];
char *sch_path[CADMAXHIER];
int sch_path_hash[CADMAXHIER];
int sch_inst_number[CADMAXHIER];
int previous_instance[CADMAXHIER]; /* to remember the instance we came from when going up the hier. */
Zoom zoom_array[CADMAXHIER];
double xorigin,yorigin;
double zoom;
double mooz;
double lw;
unsigned long ui_state ; /* this signals that we are doing a net place,panning etc.
* used to prevent nesting of some commands */
double mousex,mousey; /* mouse coord. */
double mousex_snap,mousey_snap; /* mouse coord. snapped to grid */
double mx_double_save, my_double_save;
int areax1,areay1,areax2,areay2,areaw,areah; /* window corners / size, line width beyond screen edges */
int need_reb_sel_arr;
int lastsel;
int maxsel;
Selected *sel_array;
int prep_net_structs;
int prep_hi_structs;
int prep_hash_inst;
int prep_hash_wires;
Simdata *simdata;
int simdata_ninst;
int modified;
int semaphore;
int get_tok_size;
char netlist_name[PATH_MAX];
int flat_netlist;
char current_dirname[PATH_MAX];
int netlist_unconn_cnt; /* unique count of unconnected pins while netlisting */
Instpinentry *instpin_spatial_table[NBOXES][NBOXES];
Wireentry *wire_spatial_table[NBOXES][NBOXES];
Instentry *inst_spatial_table[NBOXES][NBOXES];
Window window;
Pixmap save_pixmap;
XRectangle xrect[1];
#if HAS_CAIRO==1
cairo_surface_t *cairo_sfc, *cairo_save_sfc;
cairo_t *cairo_ctx, *cairo_save_ctx;
#endif
GC gctiled;
GC *gc;
GC *gcstipple;
char **color_array;
unsigned int color_index[256];
XColor xcolor_array[256];
int *enable_layer;
int n_active_layers;
int *active_layer;
char *undo_dirname;
int cur_undo_ptr;
int tail_undo_ptr;
int head_undo_ptr;
Inst_hashentry **inst_table;
Node_hashentry **node_table;
Hilight_hashentry **hilight_table;
int hilight_nets;
int hilight_color;
int hilight_time; /* timestamp for sims */
unsigned int rectcolor; /* current layer */
/* get_unnamed_node() */
int new_node;
int *node_mult;
int node_mult_size;
/* callback.c */
int mx_save, my_save, last_command;
char sel_or_clip[PATH_MAX];
int onetime;
/* move.c */
/* list of nodes, instances attached to these need redraw */
Int_hashentry **node_redraw_table;
/* list of instances, collected using previous table, that need redraw */
unsigned char *inst_redraw_table;
int inst_redraw_table_size;
double rx1, rx2, ry1, ry2;
short move_rot;
short move_flip;
int manhattan_lines;
double x1, y_1, x2, y_2, deltax, deltay;
int movelastsel;
short rotatelocal;
/* new_wire, new_line, new_rect*/
double nl_x1,nl_y1,nl_x2,nl_y2;
double nl_xx1,nl_yy1,nl_xx2,nl_yy2;
/* new_arc */
double nl_x, nl_y, nl_r, nl_a, nl_b;
double nl_x3, nl_y3;
int nl_state;
double nl_sweep_angle;
/* new_polygon */
double *nl_polyx, *nl_polyy;
int nl_points, nl_maxpoints;
/* select_rect */
double nl_xr, nl_yr, nl_xr2, nl_yr2;
/* pan */
double xpan,ypan,xpan2,ypan2;
double p_xx1,p_xx2,p_yy1,p_yy2;
/* set_modify */
int prev_set_modify;
/* pan2 */
int mx_s, my_s;
int mmx_s, mmy_s;
double xorig_save, yorig_save;
/* load_schematic */
int save_netlist_type;
int loaded_symbol;
/* bbox */
int bbx1, bbx2, bby1, bby2;
int savew, saveh, savex1, savex2, savey1, savey2;
int sem; /* set to 1 if a clipping bbox is set (void bbox() ) */
XRectangle savexrect;
/* new_prop_string */
char prefix;
/* edit_symbol_property, update_symbol */
char *old_prop;
int edit_sym_i;
int netlist_commands;
/* in_memory_undo */
Undo_slot uslot[MAX_UNDO];
int undo_initialized;
/* graph context struct */
Graph_ctx graph_struct;
/* read raw files (draw.c) */
char **graph_names;
SPICE_DATA **graph_values;
int graph_nvars;
int *graph_npoints;
int graph_datasets;
double graph_cursor1_x;
double graph_cursor2_x;
int graph_unlock_x;
/* graph_flags:
* 1: dnu, reserved, used in draw_graphs()
* 2: draw x-cursor1
* 4: draw x-cursor2
* 8: dnu, reserved, used in draw_graphs()
* 16: move cursor1
* 32: move cursor2
* 64: show measurement tooltip
*/
int graph_flags;
int graph_master; /* graph where mouse operations are started, used to lock x-axis */
int graph_bottom; /* graph where mouse operations are started, used to lock x-axis */
int graph_left; /* graph where mouse operations are started, used to lock x-axis */
Int_hashentry **raw_table;
char *raw_schname;
/* */
int nl_sel, nl_sem;
XSegment *biggridpoint;
XPoint *gridpoint;
char plotfile[PATH_MAX];
int enable_drill;
int pending_fullzoom;
char hiersep[20];
int no_undo;
int draw_single_layer;
int draw_dots;
int only_probes;
int menu_removed; /* fullscreen pervious setting */
double save_lw; /* used to save linewidth when selecting 'only_probes' view */
int no_draw;
int draw_pixmap; /* pixmap used as 2nd buffer */
int netlist_count; /* netlist counter incremented at any cell being netlisted */
int hide_symbols;
int netlist_type;
char *top_path;
/* top_path is the path prefix of drawing canvas (current_win_path):
*
* current_win_path
* canvas top_path
* ----------------------------
* ".drw" ""
* ".xx.drw" ".xx"
*/
char *current_win_path;
int *fill_type; /* for every layer: 0: no fill, 1, solid fill, 2: stipple fill */
int fill_pattern;
int draw_window;
time_t time_last_modify;
int undo_type; /* 0: on disk, 1: in memory */
void (*push_undo)(void);
void (*pop_undo)(int, int);
void (*delete_undo)(void);
void (*clear_undo)(void);
} Xschem_ctx;
/* GLOBAL VARIABLES */
/*********** X11 specific globals ***********/
extern Colormap colormap;
extern unsigned char **pixdata;
extern unsigned char pixdata_init[22][32];
extern Display *display;
extern int screen_number;
extern int screendepth;
extern Pixmap cad_icon_pixmap, cad_icon_mask, *pixmap;
extern Visual *visual;
#if HAS_XRENDER==1
extern XRenderPictFormat *render_format;
#endif
/*********** These variables are mirrored in tcl code ***********/
extern int cadlayers;
extern int has_x;
extern int rainbow_colors;
extern int color_ps;
extern double nocairo_vert_correct;
extern double cairo_vert_correct;
extern int constrained_move;
extern double cairo_font_scale; /* default: 1.0, allows to adjust font size */
extern double cairo_font_line_spacing;
extern int debug_var;
/*********** These variables are NOT mirrored in tcl code ***********/
extern int help;
extern char *cad_icon[];
extern FILE *errfp;
extern char home_dir[PATH_MAX]; /* home dir obtained via getpwuid */
extern char user_conf_dir[PATH_MAX]; /* usually ~/.xschem */
extern char pwd_dir[PATH_MAX]; /* obtained via getcwd() */
extern int tcp_port;
extern int text_svg;
extern int text_ps;
extern double cadhalfdotsize;
extern char bus_char[];
extern int yyparse_error;
extern char *xschem_executable;
extern Tcl_Interp *interp;
extern double *character[256];
extern int quit;
extern int detach; /* no TCL console */
extern const char fopen_read_mode[]; /* "r" on unix, "rb" on windows */
/*********** Cmdline options (used at xinit, and then not used anymore) ***********/
extern int cli_opt_argc;
extern char **cli_opt_argv;
extern int cli_opt_netlist_type;
extern int cli_opt_flat_netlist;
extern char cli_opt_plotfile[PATH_MAX];
extern char cli_opt_netlist_dir[PATH_MAX];
extern char cli_opt_filename[PATH_MAX];
extern int cli_opt_no_readline;
extern char *cli_opt_tcl_command;
extern int cli_opt_do_print;
extern int cli_opt_do_netlist;
extern int cli_opt_do_simulation;
extern int cli_opt_do_waves;
extern char cli_opt_tcl_script[PATH_MAX];
extern char cli_opt_initial_netlist_name[PATH_MAX];
extern char cli_opt_rcfile[PATH_MAX];
extern int cli_opt_load_initfile;
/*********** Following data is relative to the current schematic ***********/
extern Xschem_ctx *xctx;
/* FUNCTIONS */
extern int get_raw_index(const char *node);
extern double get_raw_value(int dataset, int idx, int point);
extern int schematic_waves_loaded(void);
extern void draw_graph(int i, int flags, Graph_ctx *gr);
extern void draw_graph_all(int flags);
extern void setup_graph_data(int i, const int flags, int skip, Graph_ctx *gr);
extern void free_rawfile(int dr);
extern int read_rawfile(const char *f);
extern double timer(int start);
extern void enable_layers(void);
extern void set_snap(double);
extern void set_grid(double);
extern void create_plot_cmd(void);
extern void set_modify(int mod);
extern void dbg(int level, char *fmt, ...);
extern unsigned int hash_file(const char *f, int skip_path_lines);
extern void here(double i);
extern void print_version(void);
extern int set_netlist_dir(int force, char *dir);
extern void netlist_options(int i);
extern int check_lib(int what, const char *s);
extern void select_all(void);
extern void change_linewidth(double w);
extern void schematic_in_new_window(void);
extern void symbol_in_new_window(void);
extern void new_xschem_process(const char *cell, int symbol);
extern void ask_new_file(void);
extern int samefile(const char *fa, const char *fb);
extern void saveas(const char *f, int type);
extern const char *get_file_path(char *f);
extern int save(int confirm);
extern void save_ascii_string(const char *ptr, FILE *fd, int newline);
extern Hilight_hashentry *bus_hilight_hash_lookup(const char *token, int value, int what) ;
extern Hilight_hashentry *hilight_lookup(const char *token, int value, int what);
extern int name_strcmp(char *s, char *d) ;
extern int search(const char *tok, const char *val, int sub, int sel);
extern int process_options(int argc, char **argv);
extern void calc_drawing_bbox(xRect *boundbox, int selected);
extern void create_ps(char **psfile, int what);
extern int ps_draw(int what);
extern void svg_draw(void);
extern void set_viewport_size(int w, int h, double lw);
extern void print_image();
extern const char *get_trailing_path(const char *str, int no_of_dir, int skip_ext);
extern const char *skip_dir(const char *str);
extern const char *get_cell(const char *str, int no_of_dir);
extern const char *get_cell_w_ext(const char *str, int no_of_dir);
extern const char *rel_sym_path(const char *s);
extern const char *abs_sym_path(const char *s, const char *ext);
extern const char *add_ext(const char *f, const char *ext);
extern void make_symbol(void);
extern void make_schematic(const char *schname);
extern void make_schematic_symbol_from_sel(void);
extern const char *get_sym_template(char *s, char *extra);
/* bit0: invoke change_linewidth(), bit1: centered zoom */
extern void zoom_full(int draw, int sel, int flags, double shrink);
extern void updatebbox(int count,xRect *boundbox,xRect *tmp);
extern void draw_selection(GC g, int interruptable);
extern void delete(int to_push_undo);
extern void delete_only_rect_line_arc_poly(void);
extern void polygon_bbox(double *x, double *y, int points, double *bx1, double *by1, double *bx2, double *by2);
extern void arc_bbox(double x, double y, double r, double a, double b,
double *bx1, double *by1, double *bx2, double *by2);
extern void bbox(int what,double x1,double y1, double x2, double y2);
extern int set_text_custom_font(xText *txt);
extern int text_bbox(const char * str,double xscale, double yscale,
short rot, short flip, int hcenter, int vcenter,
double x1,double y1, double *rx1, double *ry1,
double *rx2, double *ry2, int *cairo_lines, int *longest_line);
extern int get_color(int value);
extern void incr_hilight_color(void);
extern void hash_inst(int what, int n);
extern void del_inst_table(void);
extern void hash_wires(void);
extern void hash_wire(int what, int n, int incremental);
extern void wirecheck(int k);
extern void hash_instances(void); /* 20171203 insert instance bbox in spatial hash table */
#if HAS_CAIRO==1
extern int text_bbox_nocairo(const char * str,double xscale, double yscale,
short rot, short flip, int hcenter, int vcenter,
double x1,double y1, double *rx1, double *ry1,
double *rx2, double *ry2, int *cairo_lines, int *longest_line);
#endif
extern unsigned short select_object(double mx,double my, unsigned short sel_mode,
int override_lock); /* return type 20160503 */
extern void unselect_all(void);
extern void select_inside(double x1,double y1, double x2, double y2, int sel);
extern void xwin_exit(void);
extern void resetcairo(int create, int clear, int force_or_resize);
extern int Tcl_AppInit(Tcl_Interp *interp);
extern int source_tcl_file(char *s);
extern int callback(const char *winpath, int event, int mx, int my, KeySym key,
int button, int aux, int state);
extern void resetwin(int create_pixmap, int clear_pixmap, int force, int w, int h);
extern void find_closest_net(double mx,double my);
extern void find_closest_box(double mx,double my);
extern void find_closest_arc(double mx,double my);
extern void find_closest_element(double mx,double my);
extern void find_closest_line(double mx,double my);
extern void find_closest_polygon(double mx,double my);
extern void find_closest_text(double mx,double my);
extern Selected find_closest_obj(double mx,double my);
extern void find_closest_net_or_symbol_pin(double mx,double my, double *x, double *y);
extern void drawline(int c, int what, double x1,double y1,double x2,double y2, int dash);
extern void draw_string(int layer,int what, const char *str, short rot, short flip, int hcenter, int vcenter,
double x1, double y1, double xscale, double yscale);
extern void draw_symbol(int what,int c, int n,int layer,
short tmp_flip, short tmp_rot, double xoffset, double yoffset);
extern void drawrect(int c, int what, double rectx1,double recty1,
double rectx2,double recty2, int dash);
extern void filledrect(int c, int what, double rectx1,double recty1,
double rectx2,double recty2);
extern void drawtempline(GC gc, int what, double x1,double y1,double x2,double y2);
extern void drawgrid(void);
extern void drawtemprect(GC gc, int what, double rectx1,double recty1,
double rectx2,double recty2);
extern void drawtemparc(GC gc, int what, double x, double y, double r, double a, double b);
extern void drawarc(int c, int what, double x, double y, double r, double a, double b, int arc_fill, int dash);
extern void filledarc(int c, int what, double x, double y, double r, double a, double b);
extern void drawtemppolygon(GC gc, int what, double *x, double *y, int points);
extern void drawpolygon(int c, int what, double *x, double *y, int points, int poly_fill, int dash);
extern void draw_temp_symbol(int what, GC gc, int n,int layer,
short tmp_flip, short tmp_rot, double xoffset, double yoffset);
extern void draw_temp_string(GC gc,int what, const char *str, short rot, short flip, int hcenter, int vcenter,
double x1, double y1, double xscale, double yscale);
extern void draw(void);
extern short clip_to_short(double n);
extern void clip_xy_to_short(double x, double y, short *sx, short *sy);
extern int clip( double*,double*,double*,double*);
extern int textclip(int x1,int y1,int x2,int y2,
double xa,double ya,double xb,double yb);
extern double dist_from_rect(double mx,
double my, double x1, double y1, double x2, double y2);
extern double dist(double x1,double y1,double x2,double y2,double xa,double ya);
extern double rectdist(double x1,double y1,double x2,double y2,double xa,double ya);
extern int touch(double,double,double,double,double,double);
extern int rectclip(int,int,int,int,
double*,double*,double*,double*);
extern void trim_wires(void);
extern void update_conn_cues(int draw_cues, int dr_win);
extern void break_wires_at_pins(void);
extern void check_touch(int i, int j,
unsigned short *parallel,unsigned short *breaks,
unsigned short *broken,unsigned short *touches,
unsigned short *included, unsigned short *includes,
double *xt, double *yt);
extern void storeobject(int pos, double x1,double y1,double x2,double y2,
unsigned short type,unsigned int rectcolor,
unsigned short sel, const char *prop_ptr);
extern void store_poly(int pos, double *x, double *y, int points,
unsigned int rectcolor, unsigned short sel, char *prop_ptr);
extern void store_arc(int pos, double x, double y, double r, double a, double b,
unsigned int rectcolor, unsigned short sel, char *prop_ptr);
extern void hier_psprint(void);
extern void freenet_nocheck(int i);
extern void spice_netlist(FILE *fd, int spice_stop);
extern void tedax_netlist(FILE *fd, int spice_stop);
extern void global_spice_netlist(int global);
extern void global_tedax_netlist(int global);
extern void vhdl_netlist(FILE *fd, int vhdl_stop);
extern void global_vhdl_netlist(int global);
extern void verilog_netlist(FILE *fd, int verilog_stop);
extern void global_verilog_netlist(int global);
extern void vhdl_block_netlist(FILE *fd, int i);
extern void verilog_block_netlist(FILE *fd, int i);
extern void spice_block_netlist(FILE *fd, int i);
extern void tedax_block_netlist(FILE *fd, int i);
extern void remove_symbols(void);
extern void remove_symbol(int i);
extern void clear_drawing(void);
extern int load_sym_def(const char name[], FILE *embed_fd);
extern void descend_symbol(void);
extern int place_symbol(int pos, const char *symbol_name, double x, double y, short rot, short flip,
const char *inst_props, int draw_sym, int first_call, int to_push_undo);
extern void place_net_label(int type);
extern void attach_labels_to_inst(int interactive);
extern void delete_files(void);
extern int sym_vs_sch_pins(void);
extern int match_symbol(const char name[]);
extern int save_schematic(const char *); /* 20171020 added return value */
extern void push_undo(void);
extern void pop_undo(int redo, int set_modify_status);
extern void delete_undo(void);
extern void clear_undo(void);
extern void mem_push_undo(void);
extern void mem_pop_undo(int redo, int set_modify_status);
extern void mem_delete_undo(void);
extern void mem_clear_undo(void);
extern void load_schematic(int load_symbol, const char *abs_name, int reset_undo);
/* check if filename already in an open window/tab */
extern int check_loaded(const char *f, char *win_path);
extern void link_symbols_to_instances(int from);
extern void load_ascii_string(char **ptr, FILE *fd);
extern void read_xschem_file(FILE *fd);
extern char *read_line(FILE *fp, int dbg_level);
extern void read_record(int firstchar, FILE *fp, int dbg_level);
extern void create_sch_from_sym(void);
extern void descend_schematic(int instnumber);
extern void go_back(int confirm);
extern void view_unzoom(double z);
extern void view_zoom(double z);
extern void draw_stuff(void);
extern void new_wire(int what, double mx_snap, double my_snap);
extern void new_line(int what);
extern void new_arc(int what, double sweep);
extern void arc_3_points(double x1, double y1, double x2, double y2, double x3, double y3,
double *x, double *y, double *r, double *a, double *b);
extern void move_objects(int what,int merge, double dx, double dy);
extern void check_collapsing_objects();
extern void redraw_w_a_l_r_p_rubbers(void); /* redraw wire, arcs, line, polygon rubbers */
extern void copy_objects(int what);
extern void find_inst_to_be_redrawn(int what);
extern void pan(int what, int mx, int my);
extern void zoom_rectangle(int what);
extern void zoom_box(double x1, double y1, double x2, double y2, double factor);
extern void save_restore_zoom(int save);
extern void select_rect(int what, int select);
extern void new_rect(int what);
extern void new_polygon(int what);
extern void compile_font(void);
extern void rebuild_selected_array(void);
extern void edit_property(int x);
extern int xschem(ClientData clientdata, Tcl_Interp *interp,
int argc, const char * argv[]);
extern const char *tcleval(const char str[]);
extern const char *tclresult(void);
extern const char *tclgetvar(const char *s);
extern int tclgetboolvar(const char *s);
extern int tclgetintvar(const char *s);
extern double tclgetdoublevar(const char *s);
extern void tclsetvar(const char *s, const char *value);
extern void tclsetdoublevar(const char *s, const double value);
extern void tclsetboolvar(const char *s, const int value);
extern void tclsetintvar(const char *s, const int value);
extern int tclvareval(const char *script, ...);
extern const char *tcl_hook2(char **res);
extern void statusmsg(char str[],int n);
extern int place_text(int draw_text, double mx, double my);
extern void init_inst_iterator(Iterator_ctx *ctx, double x1, double y1, double x2, double y2);
extern Instentry *inst_iterator_next(Iterator_ctx *ctx);
extern void init_wire_iterator(Iterator_ctx *ctx, double x1, double y1, double x2, double y2);
extern Wireentry *wire_iterator_next(Iterator_ctx *ctx);
extern void check_unique_names(int rename);
extern void clear_instance_hash();
extern unsigned int str_hash(const char *tok);
extern void str_hash_free(Str_hashentry **table);
extern Str_hashentry *str_hash_lookup(Str_hashentry **table,
const char *token, const char *value, int what);
extern void int_hash_free(Int_hashentry **table);
extern Int_hashentry *int_hash_lookup(Int_hashentry **table,
const char *token, const int value, int what);
extern const char *find_nth(const char *str, char sep, int n);
extern int isonlydigit(const char *s);
extern const char *translate(int inst, const char* s);
extern const char* translate2(Lcc *lcc, int level, char* s);
extern void print_tedax_element(FILE *fd, int inst);
extern int print_spice_element(FILE *fd, int inst);
extern void print_spice_subckt(FILE *fd, int symbol);
extern void print_tedax_subckt(FILE *fd, int symbol);
extern void print_vhdl_element(FILE *fd, int inst);
extern void print_verilog_element(FILE *fd, int inst);
extern void print_verilog_primitive(FILE *fd, int inst);
extern void print_vhdl_primitive(FILE *fd, int inst);
extern const char *get_tok_value(const char *s,const char *tok,int with_quotes);
extern const char *list_tokens(const char *s, int with_quotes);
extern int my_snprintf(char *str, int size, const char *fmt, ...);
extern size_t my_strdup(int id, char **dest, const char *src);
extern void my_strndup(int id, char **dest, const char *src, int n);
extern size_t my_strdup2(int id, char **dest, const char *src);
extern char *my_strtok_r(char *str, const char *delim, char **saveptr);
extern int my_strncpy(char *d, const char *s, int n);
extern char* strtolower(char* s);
extern char* strtoupper(char* s);
extern void *my_malloc(int id, size_t size);
extern void my_realloc(int id, void *ptr,size_t size);
extern void *my_calloc(int id, size_t nmemb, size_t size);
extern void my_free(int id, void *ptr);
extern size_t my_strcat(int id, char **, const char *);
extern double my_round(double a);
extern double round_to_n_digits(double x, int n);
extern double floor_to_n_digits(double x, int n);
extern double ceil_to_n_digits(double x, int n);
extern const char *subst_token(const char *s, const char *tok, const char *new_val);
extern void new_prop_string(int i, const char *old_prop,int fast, int dis_uniq_names);
extern void hash_name(char *token, int remove);
extern void hash_all_names(int n);
extern void symbol_bbox(int i, double *x1,double *y1, double *x2, double *y2);
/* extern char *escape_chars(char *dest, const char *source, int size); */
extern void set_inst_prop(int i);
extern void unselect_wire(int i);
extern void select_hilight_net(void);
extern void check_wire_storage(void);
extern void check_text_storage(void);
extern void check_inst_storage(void);
extern void check_symbol_storage(void);
extern void check_selected_storage(void);
extern void check_box_storage(int c);
extern void check_arc_storage(int c);
extern void check_line_storage(int c);
extern void check_polygon_storage(int c);
extern const char *expandlabel(const char *s, int *m);
extern void parse(const char *s);
extern void clear_expandlabel_data(void);
extern void merge_inst(int k, FILE *fd);
extern void merge_file(int selection_load, const char ext[]);
extern void select_wire(int i, unsigned short select_mode, int fast);
extern void select_element(int i, unsigned short select_mode, int fast, int override_lock);
extern void select_text(int i, unsigned short select_mode, int fast);
extern void select_box(int c, int i, unsigned short select_mode, int fast);
extern void select_arc(int c, int i, unsigned short select_mode, int fast);
extern void select_line(int c, int i, unsigned short select_mode, int fast);
extern void select_polygon(int c, int i, unsigned short select_mode, int fast );
extern const char *net_name(int i, int j, int *mult, int hash_prefix_unnamed_net, int erc);
extern int record_global_node(int what, FILE *fp, char *node);
extern int count_items(const char *s, const char *sep);
extern int get_unnamed_node(int what, int mult, int node);
extern void node_hash_free(void);
extern void traverse_node_hash();
extern Node_hashentry
*bus_node_hash_lookup(const char *token, const char *dir,int what, int port, char *sig_type,
char *verilog_type, char *value, char *class);
/* extern void insert_missing_pin(); */
extern void round_schematic_to_grid(double cadsnap);
extern void save_selection(int what);
extern void print_vhdl_signals(FILE *fd);
extern void print_verilog_signals(FILE *fd);
extern void print_generic(FILE *fd, char *ent_or_comp, int symbol);
extern void print_verilog_param(FILE *fd, int symbol);
extern void hilight_net(int to_waveform);
extern void logic_set(int v, int num);
extern int hilight_netname(const char *name);
extern void unhilight_net();
extern void propagate_hilights(int set, int clear, int mode);
extern void select_connected_wires(int stop_at_junction);
extern void draw_hilight_net(int on_window);
extern void display_hilights(char **str);
extern void redraw_hilights(int clear);
extern void set_tcl_netlist_type(void);
extern void prepare_netlist_structs(int for_netlist);
extern void create_simdata(void);
extern void free_simdata(void);
extern void delete_netlist_structs(void);
extern void delete_inst_node(int i);
extern void clear_all_hilights(void);
extern void hilight_child_pins(void);
extern void hilight_parent_pins(void);
extern void hilight_net_pin_mismatches(void);
extern Node_hashentry **get_node_table_ptr(void);
extern void change_elem_order(void);
extern int set_different_token(char **s,const char *new, const char *old, int object, int n);
extern void print_hilight_net(int show);
extern void list_hilights(void);
extern void change_layer();
extern void launcher();
extern void windowid(const char *winpath);
extern void preview_window(const char *what, const char *tk_win_path, const char *fname);
extern int new_schematic(const char *what, const char *win_path, const char *fname);
extern int window_state (Display *disp, Window win, char *arg);
extern void toggle_fullscreen(const char *topwin);
extern void toggle_only_probes();
extern void update_symbol(const char *result, int x);
extern void tclexit(ClientData s);
extern int build_colors(double dim, double dim_bg); /* reparse the TCL 'colors' list and reassign colors 20171113 */
extern void set_clip_mask(int what);
#ifdef __unix__
extern int pending_events(void);
#endif
extern void drill_hilight(int mode);
extern void get_square(double x, double y, int *xx, int *yy);
extern void del_wire_table(void);
extern void del_object_table(void);
extern const char *random_string(const char *prefix);
extern const char *create_tmpdir(char *prefix);
extern FILE *open_tmpfile(char *prefix, char **filename);
extern void child_handler(int signum);
#endif /*CADGLOBALS */
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