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- /*
- ** printed circuit board printer, Copyright (C) Randy Nevin 1989.
- **
- ** you may give this software to anyone, make as many copies as you like, and
- ** post it on public computer bulletin boards and file servers. you may not
- ** sell it or charge any fee for distribution (except for media and postage),
- ** remove this comment or the copyright notice from the code, or claim that
- ** you wrote this code or anything derived from it. you may modify the code as
- ** much as you want (please document clearly with comments, and maintain the
- ** coding style), but programs which are derived from this one are subject to
- ** the conditions stated here. i am providing this code so that people can
- ** learn from it, so if you distribute it, please include source code, not
- ** just executables. contact me to report bugs or suggest enhancements; i do
- ** not guarantee support, but i will make an effort in good faith to help you,
- ** and i want to act as a central clearing house for future versions. you
- ** should contact me before undertaking a significant development effort, to
- ** avoid reinventing the wheel. if you come up with an enhancement you
- ** consider particularly useful, i would appreciate being informed so that it
- ** can be incorporated in future versions. my address is: Randy Nevin,
- ** 1731 211th PL NE, Redmond, WA 98053. this code is available directly from
- ** the author; just send a floppy and a self-addressed floppy mailer with
- ** sufficient postage.
- **
- ** HISTORY
- ** (name date description)
- ** ----------------------------------------------------
- ** randy nevin 3/4/89 initial version
- ** randy nevin 3/4/89 released version 1.00
- */
-
- #include <stdio.h>
-
- #ifndef M_XENIX
- #include <stdlib.h>
- #endif
-
- #include <string.h>
- #include "cell.h"
-
- /*
- ** usage: PCBPRINT [/P] [/L] [/Rn] [/Zm] infile
- **
- ** /P indicates portrait orientation (paper is longer from top to bottom), and
- ** /L indicates landscape orientation (paper is longer side-to-side). only one
- ** of /P and /L can be present. n is the laser printer resolution (75, 100,
- ** 150, or 300) and m is the zoom factor (0, 1, 2, or 3 ). the defaults are:
- ** /P /R150 /Z1. this program creates 6 output files (H, T, B, HT, HB, and
- ** HTB). each of these files can be fed to a hewlett-packard laser printer to
- ** produce a picture of part or all of the routed printed circuit board. H
- ** contains commands to print only the holes and routing holes. T and B
- ** contain commands to print only the top-side or bottom-side traces,
- ** respectively. HT and HB are the same, but also include the holes, and HTB
- ** contains everything (holes, top-side traces, and bottom-side traces).
- */
-
- #define MAXZOOM 3 /* maximum zoom number; minimum is 0 */
-
- #define ZOOM0 3 /* 3x3 dots per cell */
- #define ZOOM1 6 /* 6x6 dots per cell */
- #define ZOOM2 10 /* 10x10 dots per cell */
- #define ZOOM3 18 /* 18x18 dots per cell */
-
- static int size[MAXZOOM+1] = { ZOOM0, ZOOM1, ZOOM2, ZOOM3 };
-
- #define H 1 /* holes */
- #define T 2 /* top-side traces */
- #define B 4 /* bottom-side traces */
- #define HT (H+T) /* holes and top-side traces */
- #define HB (H+B) /* holes and bottom-side traces */
- #define HTB (H+T+B) /* holes, top- and bottom-side traces */
-
- static int currnt; /* current image type (one of the six above) */
- static int orient; /* 0=portrait, 1=landscape */
- static int resol; /* resolution (one of 75,100,150,300) */
- static int zoom; /* 0=3x3, 1=6x6, 2=10x10, 3=18x18 */
- static int nbytes; /* number of bytes per image row */
-
- int justboard = 1; /* only need the board data structure */
-
- /* board dimensions */
- extern int Nrows;
- extern int Ncols;
-
- extern void InitBoard( void );
- extern long GetCell( int, int, int );
- extern void SetCell( int, int, int, long );
-
- void main( int, char *[] );
- static void dofile( char *, int );
- static void prolog( FILE * );
- static void epilog( FILE * );
- static void doimage( FILE * );
- static void map( long, long, int, FILE * );
- static void initbit( void );
- static void flushbit( FILE * );
- static void outbit( int, FILE * );
-
- void main ( argc, argv ) /* input routed board, output laser printer files */
- int argc;
- char *argv[];
- {
- char *self, *p;
- register int r, c;
- int i1, i2, i3, i4, i, j;
- FILE *fp;
- long x;
- char oset, rset, zset;
-
- printf( "Copyright (C) Randy Nevin, 1989. Version 1.00\n" );
- printf( "See source code for rights granted.\n\n" );
- orient = 0; /* portrait mode */
- resol = 150; /* 150 dots per inch */
- zoom = 1; /* 6x6 cells */
- oset = rset = zset = 0; /* so far, just defaults */
- self = argv[0];
- /* get rid of initial part of path */
- if ((p = strrchr( self, '\\' )) || (p = strrchr( self, ':' )))
- self = ++p;
- if (argc < 2 || argc > 5) { /* need infile and up to 4 switches */
- fprintf( stderr, "usage: %s [/P] [/L] [/Rn] [/Zm] infile\n",
- self );
- fprintf( stderr, " P = portrait orientation\n" );
- fprintf( stderr, " L = landscape orientation\n" );
- fprintf( stderr, " n = resolution (75,100,150,300)\n" );
- fprintf( stderr, " m = zoom (0,1,2,3)\n" );
- exit( -1 );
- }
- for (i = 1; i < argc-1; i++) { /* process switches */
- if (*argv[i] == '/' && (*(argv[i]+1) == 'P'
- || *(argv[i]+1) == 'p') && *(argv[i]+2) == 0) {
- if (oset)
- fprintf( stderr, "duplicate orientation %s\n",
- argv[i] );
- else {
- oset = 1;
- orient = 0;
- }
- }
- else if (*argv[i] == '/' && (*(argv[i]+1) == 'L'
- || *(argv[i]+1) == 'l') && *(argv[i]+2) == 0) {
- if (oset)
- fprintf( stderr, "duplicate orientation %s\n",
- argv[i] );
- else {
- oset = 1;
- orient = 1;
- }
- }
- else if (*argv[i] == '/' && (*(argv[i]+1) == 'R'
- || *(argv[i]+1) == 'r')) {
- if (rset)
- fprintf( stderr, "duplicate resolution %s\n",
- argv[i] );
- else {
- rset = 1;
- resol = atoi( argv[i]+2 );
- }
- }
- else if (*argv[i] == '/' && (*(argv[i]+1) == 'Z'
- || *(argv[i]+1) == 'z')) {
- if (zset)
- fprintf( stderr, "duplicate zoom %s\n",
- argv[i] );
- else {
- zset = 1;
- zoom = atoi( argv[i]+2 );
- }
- }
- else
- fprintf( stderr, "unknown option %s\n", argv[i] );
- }
- if (!(fp = fopen( argv[argc-1], "rb" ))) {
- fprintf( stderr, "can't open %s\n", argv[argc-1] );
- exit( -1 );
- }
- /* fetch the board dimensions */
- if ((i = getc( fp )) == EOF || (j = getc( fp )) == EOF) {
- fprintf( stderr, "premature eof\n" );
- exit( -1 );
- }
- Nrows = (i & 0xFF) | ((j << 8) & 0xFF00);
- if ((i = getc( fp )) == EOF || (j = getc( fp )) == EOF) {
- fprintf( stderr, "premature eof\n" );
- exit( -1 );
- }
- Ncols = (i & 0xFF) | ((j << 8) & 0xFF00);
- InitBoard(); /* allocate memory for data structures */
- for (r = 0; r < Nrows; r++) { /* read in the board, row by column */
- for (c = 0; c < Ncols; c++) {
- /* first do top-side */
- if ((i1 = getc( fp )) == EOF
- || (i2 = getc( fp )) == EOF
- || (i3 = getc( fp )) == EOF
- || (i4 = getc( fp )) == EOF) {
- fprintf( stderr, "premature eof\n" );
- exit( -1 );
- }
- x = (long)i1 | (((long)i2) << 8)
- | (((long)i3) << 16) | (((long)i4) << 24);
- SetCell( r, c, TOP, x );
- /* then do bottom-side */
- if ((i1 = getc( fp )) == EOF
- || (i2 = getc( fp )) == EOF
- || (i3 = getc( fp )) == EOF
- || (i4 = getc( fp )) == EOF) {
- fprintf( stderr, "premature eof\n" );
- exit( -1 );
- }
- x = (long)i1 | (((long)i2) << 8)
- | (((long)i3) << 16) | (((long)i4) << 24);
- SetCell( r, c, BOTTOM, x );
- }
- }
- nbytes = (Ncols * size[zoom] + 7) / 8;
- dofile( "H", H );
- dofile( "T", T );
- dofile( "B", B );
- dofile( "HT", HT );
- dofile( "HB", HB );
- dofile( "HTB", HTB );
- exit( 0 );
- }
-
- static void dofile ( p, i ) /* create a board image file */
- char *p;
- int i;
- {
- FILE *fp;
-
- printf( "producing %s image file\n", p );
- currnt = i;
- if (!(fp = fopen( p, "wb" ))) {
- fprintf( stderr, "can't open %s\n", p );
- exit( -1 );
- }
- prolog( fp ); /* initial laser printer commands */
- doimage( fp ); /* create the board image */
- epilog( fp ); /* final laser printer commands */
- if (fclose( fp )) {
- fprintf( stderr, "can't close %s\n", p );
- exit( -1 );
- }
- }
-
- static void prolog ( fp ) /* output initial laser printer commands */
- register FILE *fp;
- {
- putc( 0x1B, fp ); /* <esc> */
- putc( 'E', fp ); /* reset */
- putc( 0x1B, fp ); /* <esc> */
- fprintf( fp, "&l%dO", orient ); /* set image orientation */
- putc( 0x1B, fp ); /* <esc> */
- fprintf( fp, "&a10R" ); /* cursor to row 10 */
- putc( 0x1B, fp ); /* <esc> */
- fprintf( fp, "&a10C" ); /* cursor to column 10 */
- putc( 0x1B, fp ); /* <esc> */
- fprintf( fp, "*t%dR", resol ); /* set resolution in dots per inch */
- putc( 0x1B, fp ); /* <esc> */
- fprintf( fp, "*r1A" ); /* start graphics at cursor */
- }
-
- static void epilog ( fp ) /* output final laser printer commands */
- register FILE *fp;
- {
- putc( 0x1B, fp ); /* <esc> */
- fprintf( fp, "*rB" ); /* end graphics */
- putc( 0x12, fp ); /* formfeed to eject paper */
- putc( 0x1B, fp ); /* <esc> */
- putc( 'E', fp ); /* reset */
- }
-
- static void doimage ( fp ) /* create the board image, row by column */
- FILE *fp;
- {
- register int r, c;
- int ir;
- long x, y;
-
- for (r = Nrows-1; r >= 0; r--) { /* each row */
- for (ir = size[zoom]-1; ir >= 0; ir--) { /* each scan line */
- putc( 0x1B, fp ); /* <esc> */
- fprintf( fp, "*b%dW", nbytes );
- initbit();
- for (c = 0; c < Ncols; c++) {
- x = GetCell( r, c, TOP );
- y = GetCell( r, c, BOTTOM );
- map( x, y, ir, fp );
- }
- flushbit( fp );
- }
- }
- }
-
- struct x { /* group the bit templates for an object */
- long t; /* the object type */
- char t0[ZOOM0][ZOOM0]; /* tiny zoom template */
- char t1[ZOOM1][ZOOM1]; /* small zoom template */
- char t2[ZOOM2][ZOOM2]; /* medium zoom template */
- char t3[ZOOM3][ZOOM3]; /* large zoom template */
- };
-
- extern struct x y1[]; /* hole templates */
- extern struct x y2[]; /* hole-related templates */
- extern struct x y3[]; /* non-hole-related templates */
-
- extern int z1; /* number of hole types */
- extern int z2; /* number of hole-related types */
- extern int z3; /* number of non-hole-related types */
-
- #define domap1(v) { int i; \
- for (i = 0; i < z1; i++) { \
- if (v & (y1[i].t)) { \
- if (zoom == 0) \
- bit |= y1[i].t0[ir][ic]; \
- else if (zoom == 1) \
- bit |= y1[i].t1[ir][ic]; \
- else if (zoom == 2) \
- bit |= y1[i].t2[ir][ic]; \
- else if (zoom == 3) \
- bit |= y1[i].t3[ir][ic]; \
- } \
- if (bit) \
- break; \
- } }
-
- #define domap2(v) { int i; \
- for (i = 0; i < z2; i++) { \
- if (v & (y2[i].t)) { \
- if (zoom == 0) \
- bit |= y2[i].t0[ir][ic]; \
- else if (zoom == 1) \
- bit |= y2[i].t1[ir][ic]; \
- else if (zoom == 2) \
- bit |= y2[i].t2[ir][ic]; \
- else if (zoom == 3) \
- bit |= y2[i].t3[ir][ic]; \
- } \
- if (bit) \
- break; \
- } }
-
- #define domap3(v) { int i; \
- for (i = 0; i < z3; i++) { \
- if (v & (y3[i].t)) { \
- if (zoom == 0) \
- bit |= y3[i].t0[ir][ic]; \
- else if (zoom == 1) \
- bit |= y3[i].t1[ir][ic]; \
- else if (zoom == 2) \
- bit |= y3[i].t2[ir][ic]; \
- else if (zoom == 3) \
- bit |= y3[i].t3[ir][ic]; \
- } \
- if (bit) \
- break; \
- } }
-
- static void map ( v0, v1, ir, fp ) /* map a cell to the image */
- long v0, v1;
- int ir;
- FILE *fp;
- {
- register int ic, bit;
-
- for (ic = 0; ic < size[zoom]; ic++) { /* do each scan column */
- bit = 0;
- if (v0 & HOLE) {
- if (currnt & H) /* plot holes? */
- domap1( v0 );
- if (!bit && (currnt & T)) /* plot top-side? */
- domap2( v0 );
- if (!bit && (currnt & B)) /* plot bottom-side? */
- domap2( v1 );
- }
- else {
- if (v0 && (currnt & T)) /* plot top-side? */
- domap3( v0 );
- if (!bit && v1 && (currnt & B)) /* plot bottom-side? */
- domap3( v1 );
- }
- outbit( bit, fp );
- }
- }
-
- static int shift; /* how far to shift next bit */
- static char byte; /* the byte buffer */
-
- static void initbit () { /* initialize bit output */
- byte = 0;
- shift = 7;
- }
-
- static void flushbit ( fp ) /* flush bit output */
- FILE *fp;
- {
- if (shift != 7) /* buffer empty? */
- putc( byte, fp ); /* no, output partial byte */
- }
-
- static void outbit( bit, fp ) /* output a bit using byte buffering */
- int bit;
- FILE *fp;
- {
- byte |= ((char)bit << shift);
- if (!shift) {
- putc( byte, fp );
- byte = 0;
- shift = 7;
- }
- else
- shift--;
- }
-