diff options
author | Norbert Preining <norbert@preining.info> | 2019-09-02 13:46:59 +0900 |
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committer | Norbert Preining <norbert@preining.info> | 2019-09-02 13:46:59 +0900 |
commit | e0c6872cf40896c7be36b11dcc744620f10adf1d (patch) | |
tree | 60335e10d2f4354b0674ec22d7b53f0f8abee672 /dviware/dvi2pcl/prescanpage.c |
Initial commit
Diffstat (limited to 'dviware/dvi2pcl/prescanpage.c')
-rw-r--r-- | dviware/dvi2pcl/prescanpage.c | 153 |
1 files changed, 153 insertions, 0 deletions
diff --git a/dviware/dvi2pcl/prescanpage.c b/dviware/dvi2pcl/prescanpage.c new file mode 100644 index 0000000000..72cd90f105 --- /dev/null +++ b/dviware/dvi2pcl/prescanpage.c @@ -0,0 +1,153 @@ +/* $Log: prescanpage.c,v $ + * Revision 0.8 92/11/23 19:46:55 19:46:55 bt (Bo Thide') + * Fixed resolution bug. Portable downloading. Added/changed options. PJXL color support + * + * Revision 0.7 92/11/13 02:41:40 02:41:40 bt (Bo Thide') + * More bug fixes and improvements. Support for PaintJet XL + * + * Revision 0.6 92/11/10 21:48:37 21:48:37 bt (Bo Thide') + * Bug fixes. Added -R option. Better font handling. + * + * Revision 0.5 92/11/09 16:25:43 16:25:43 bt (Bo Thide') + * Rewrite of dospecial.c. Extended \special support + * + * Revision 0.4 92/11/08 02:46:00 02:46:00 bt (Bo Thide') + * Changed to portable bit manipulations. Replaced strrstr for non-POSIX compliant C. Fixed numerous bugs. Added support for more \special's. + * + * Revision 0.3 92/08/24 12:43:21 12:43:21 bt (Bo Thide') + * Fixed 8 bit (dc font) support. + * + * Revision 0.2 92/08/23 17:29:00 17:29:00 bt (Bo Thide') + * Source cleaned up. Changed certain function calls. Removed globals. + * + * Revision 0.1 92/08/22 23:58:48 23:58:48 bt (Bo Thide') + * First Release. + * */ + +/* + * This routine will scan a page from 'bop' to 'eop', maintaining information + * about font usage. It also catches errors like illegal font numbers or + * characters. Finally, it also counts the number of pages actually processed, + * so if the file is scanned backwards, it will end correctly. + */ + +#include <stdio.h> +#include "dvi.h" +#include "globals.h" +#include "macros.h" + +static char rcsid[] = "$Header: prescanpage.c,v 0.8 92/11/23 19:46:55 bt Exp $"; + +prescanpage(bitfile, dvifile, pcllevel, resolution) +FILE *bitfile; +FILE *dvifile; +short pcllevel, resolution; +{ + bool badchar; + int k; + int q; + int font_num; + int font_used[MAXFONTS]; + long p; + long hh=0L; /* Pixel analog of DVI unit h */ + long vv=0L; /* Pixel analog of DVI unit v */ + + actualpagecount++; + + for(k = 0 ; k < MAXFONTS ; k++) + font_used[k] = FALSE; + font_num = 0; + + while (TRUE){ + if((k = (int)getubyte(dvifile)) < DVI_SET1) + (cbase + k)->use_count++; + else { + p = firstpar(dvifile, k); + +#ifdef DEBUG2 + fprintf(stderr,"\nprescanpage: p = %d,k = %d", p, k); +#endif /* DEBUG2 */ + + switch (k) { + case DVI_BOP: + scanbop(dvifile); + break; + case DVI_EOP: + goto end; + break; + case DVI_SET1: + case DVI_SET2: + case DVI_SET3: + case DVI_SET4: + case DVI_PUT1: + case DVI_PUT2: + case DVI_PUT3: + case DVI_PUT4: + if(p > 255) + prerror("Char > 255 encountered\n"); + else + (cbase + p)->use_count++; + break; + case DVI_SET_RULE: + case DVI_PUT_RULE: + getsquad(dvifile); + break; + case DVI_FNT_DEF1: + case DVI_FNT_DEF2: + case DVI_FNT_DEF3: + case DVI_FNT_DEF4: + definefont(dvifile, p); + break; + case DVI_XXX1: + case DVI_XXX2: + case DVI_XXX3: + case DVI_XXX4: + badchar = FALSE; + if(p + nextnamesfree - names > NAMESIZE) + prerror("Out of string space during special\n"); + for (k=0; k<(int)p; k++) + { + q = (int)getubyte(dvifile); + if((q < ' ') || (q > '~')) + badchar = TRUE; + *(nextnamesfree + k) = q; + } + *(nextnamesfree + p) = '\0'; + if(badchar) + fprintf(stderr,"non-ASCII character in DVI_XXX command\n"); + dospecial(bitfile, PRESCAN_ON, pcllevel, hh, vv, resolution); + break; + case DVI_POST: + inpostamble = TRUE; + goto end; + break; + default: + if((k >= DVI_FNT_NUM_0) && (k <= DVI_FNT4)) + { + if(p > MAXFONTS) + valerror("Max number of allowed fonts is %3d\n", MAXFONTS); + else { + font = fontptr[p]; + if(font == NULL) + prerror("Undefined font\n"); + else { + cbase = font->chr; + if(!font_used[p]) { + font_used[p] = TRUE; + font_num++; + } + } + } + } + break; + } + } + } +end: + if(font_num > 16) + { + fprintf(stderr,"Warning: "); + printbop(startvals, count); + fprintf(stderr,"prescanpage: %d [>16] fonts on page\n",font_num); + } +} |