Annotation of mandoc/term_ps.c, Revision 1.48
1.48 ! kristaps 1: /* $Id: term_ps.c,v 1.47 2011/03/07 01:58:24 schwarze Exp $ */
1.1 kristaps 2: /*
1.34 schwarze 3: * Copyright (c) 2010 Kristaps Dzonsons <kristaps@bsd.lv>
1.1 kristaps 4: *
5: * Permission to use, copy, modify, and distribute this software for any
6: * purpose with or without fee is hereby granted, provided that the above
7: * copyright notice and this permission notice appear in all copies.
8: *
9: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16: */
17: #ifdef HAVE_CONFIG_H
18: #include "config.h"
19: #endif
20:
1.43 kristaps 21: #include <sys/types.h>
1.4 kristaps 22:
1.2 kristaps 23: #include <assert.h>
1.4 kristaps 24: #include <stdarg.h>
1.17 kristaps 25: #include <stdint.h>
1.2 kristaps 26: #include <stdio.h>
1.1 kristaps 27: #include <stdlib.h>
1.4 kristaps 28: #include <string.h>
1.13 kristaps 29: #include <time.h>
1.26 kristaps 30: #include <unistd.h>
1.1 kristaps 31:
1.42 schwarze 32: #include "mandoc.h"
1.1 kristaps 33: #include "out.h"
34: #include "main.h"
35: #include "term.h"
36:
1.21 kristaps 37: /* Convert PostScript point "x" to an AFM unit. */
1.25 kristaps 38: #define PNT2AFM(p, x) /* LINTED */ \
1.21 kristaps 39: (size_t)((double)(x) * (1000.0 / (double)(p)->engine.ps.scale))
40:
41: /* Convert an AFM unit "x" to a PostScript points */
1.25 kristaps 42: #define AFM2PNT(p, x) /* LINTED */ \
1.35 kristaps 43: ((double)(x) / (1000.0 / (double)(p)->engine.ps.scale))
1.21 kristaps 44:
1.13 kristaps 45: struct glyph {
1.36 kristaps 46: unsigned short wx; /* WX in AFM */
1.13 kristaps 47: };
48:
49: struct font {
50: const char *name; /* FontName in AFM */
1.15 kristaps 51: #define MAXCHAR 95 /* total characters we can handle */
1.13 kristaps 52: struct glyph gly[MAXCHAR]; /* glyph metrics */
53: };
54:
55: /*
56: * We define, for the time being, three fonts: bold, oblique/italic, and
57: * normal (roman). The following table hard-codes the font metrics for
58: * ASCII, i.e., 32--127.
59: */
60:
1.16 kristaps 61: static const struct font fonts[TERMFONT__MAX] = {
1.24 kristaps 62: { "Times-Roman", {
63: { 250 },
64: { 333 },
65: { 408 },
66: { 500 },
67: { 500 },
68: { 833 },
69: { 778 },
70: { 333 },
71: { 333 },
72: { 333 },
73: { 500 },
74: { 564 },
75: { 250 },
76: { 333 },
77: { 250 },
78: { 278 },
79: { 500 },
80: { 500 },
81: { 500 },
82: { 500 },
83: { 500 },
84: { 500 },
85: { 500 },
86: { 500 },
87: { 500 },
88: { 500 },
89: { 278 },
90: { 278 },
91: { 564 },
92: { 564 },
93: { 564 },
94: { 444 },
95: { 921 },
96: { 722 },
97: { 667 },
98: { 667 },
99: { 722 },
100: { 611 },
101: { 556 },
102: { 722 },
103: { 722 },
104: { 333 },
105: { 389 },
106: { 722 },
107: { 611 },
108: { 889 },
109: { 722 },
110: { 722 },
111: { 556 },
112: { 722 },
113: { 667 },
114: { 556 },
115: { 611 },
116: { 722 },
117: { 722 },
118: { 944 },
119: { 722 },
120: { 722 },
121: { 611 },
122: { 333 },
123: { 278 },
124: { 333 },
125: { 469 },
126: { 500 },
127: { 333 },
128: { 444 },
129: { 500 },
130: { 444 },
131: { 500},
132: { 444},
133: { 333},
134: { 500},
135: { 500},
136: { 278},
137: { 278},
138: { 500},
139: { 278},
140: { 778},
141: { 500},
142: { 500},
143: { 500},
144: { 500},
145: { 333},
146: { 389},
147: { 278},
148: { 500},
149: { 500},
150: { 722},
151: { 500},
152: { 500},
153: { 444},
154: { 480},
155: { 200},
156: { 480},
157: { 541},
158: } },
159: { "Times-Bold", {
160: { 250 },
161: { 333 },
162: { 555 },
163: { 500 },
164: { 500 },
165: { 1000 },
166: { 833 },
167: { 333 },
168: { 333 },
169: { 333 },
170: { 500 },
171: { 570 },
172: { 250 },
173: { 333 },
174: { 250 },
175: { 278 },
176: { 500 },
177: { 500 },
178: { 500 },
179: { 500 },
180: { 500 },
181: { 500 },
182: { 500 },
183: { 500 },
184: { 500 },
185: { 500 },
186: { 333 },
187: { 333 },
188: { 570 },
189: { 570 },
190: { 570 },
191: { 500 },
192: { 930 },
193: { 722 },
194: { 667 },
195: { 722 },
196: { 722 },
197: { 667 },
198: { 611 },
199: { 778 },
200: { 778 },
201: { 389 },
202: { 500 },
203: { 778 },
204: { 667 },
205: { 944 },
206: { 722 },
207: { 778 },
208: { 611 },
209: { 778 },
210: { 722 },
211: { 556 },
212: { 667 },
213: { 722 },
214: { 722 },
215: { 1000 },
216: { 722 },
217: { 722 },
218: { 667 },
219: { 333 },
220: { 278 },
221: { 333 },
222: { 581 },
223: { 500 },
224: { 333 },
225: { 500 },
226: { 556 },
227: { 444 },
1.22 kristaps 228: { 556 },
1.24 kristaps 229: { 444 },
230: { 333 },
1.22 kristaps 231: { 500 },
1.24 kristaps 232: { 556 },
1.22 kristaps 233: { 278 },
1.24 kristaps 234: { 333 },
235: { 556 },
1.22 kristaps 236: { 278 },
1.24 kristaps 237: { 833 },
1.22 kristaps 238: { 556 },
1.24 kristaps 239: { 500 },
1.22 kristaps 240: { 556 },
241: { 556 },
242: { 444 },
1.24 kristaps 243: { 389 },
244: { 333 },
1.22 kristaps 245: { 556 },
246: { 500 },
1.24 kristaps 247: { 722 },
248: { 500 },
1.22 kristaps 249: { 500 },
1.24 kristaps 250: { 444 },
251: { 394 },
252: { 220 },
253: { 394 },
254: { 520 },
1.13 kristaps 255: } },
1.24 kristaps 256: { "Times-Italic", {
257: { 250 },
258: { 333 },
259: { 420 },
260: { 500 },
261: { 500 },
262: { 833 },
263: { 778 },
264: { 333 },
265: { 333 },
266: { 333 },
267: { 500 },
268: { 675 },
269: { 250 },
270: { 333 },
271: { 250 },
272: { 278 },
273: { 500 },
274: { 500 },
275: { 500 },
276: { 500 },
277: { 500 },
278: { 500 },
279: { 500 },
280: { 500 },
281: { 500 },
282: { 500 },
283: { 333 },
284: { 333 },
285: { 675 },
286: { 675 },
287: { 675 },
288: { 500 },
289: { 920 },
290: { 611 },
291: { 611 },
292: { 667 },
293: { 722 },
294: { 611 },
295: { 611 },
296: { 722 },
297: { 722 },
298: { 333 },
299: { 444 },
300: { 667 },
301: { 556 },
302: { 833 },
303: { 667 },
304: { 722 },
305: { 611 },
306: { 722 },
307: { 611 },
308: { 500 },
309: { 556 },
310: { 722 },
311: { 611 },
312: { 833 },
313: { 611 },
314: { 556 },
315: { 556 },
316: { 389 },
317: { 278 },
318: { 389 },
319: { 422 },
320: { 500 },
321: { 333 },
322: { 500 },
323: { 500 },
324: { 444 },
1.22 kristaps 325: { 500 },
1.24 kristaps 326: { 444 },
327: { 278 },
1.22 kristaps 328: { 500 },
329: { 500 },
330: { 278 },
1.24 kristaps 331: { 278 },
332: { 444 },
333: { 278 },
334: { 722 },
335: { 500 },
336: { 500 },
337: { 500 },
1.22 kristaps 338: { 500 },
1.24 kristaps 339: { 389 },
340: { 389 },
1.22 kristaps 341: { 278 },
342: { 500 },
1.24 kristaps 343: { 444 },
344: { 667 },
345: { 444 },
346: { 444 },
347: { 389 },
348: { 400 },
1.22 kristaps 349: { 275 },
1.24 kristaps 350: { 400 },
351: { 541 },
1.13 kristaps 352: } },
353: };
354:
1.15 kristaps 355: /* These work the buffer used by the header and footer. */
1.4 kristaps 356: #define PS_BUFSLOP 128
357:
1.40 joerg 358: static void
359: ps_growbuf(struct termp *p, size_t sz)
360: {
361: if (p->engine.ps.psmargcur + sz <= p->engine.ps.psmargsz)
362: return;
363:
364: if (sz < PS_BUFSLOP)
365: sz = PS_BUFSLOP;
1.41 kristaps 366:
1.40 joerg 367: p->engine.ps.psmargsz += sz;
368:
1.48 ! kristaps 369: p->engine.ps.psmarg = mandoc_realloc
1.41 kristaps 370: (p->engine.ps.psmarg,
371: p->engine.ps.psmargsz);
1.40 joerg 372: }
1.9 kristaps 373:
1.20 kristaps 374: static double ps_hspan(const struct termp *,
1.19 kristaps 375: const struct roffsu *);
376: static size_t ps_width(const struct termp *, char);
377: static void ps_advance(struct termp *, size_t);
1.2 kristaps 378: static void ps_begin(struct termp *);
1.37 kristaps 379: static void ps_closepage(struct termp *);
1.2 kristaps 380: static void ps_end(struct termp *);
381: static void ps_endline(struct termp *);
1.9 kristaps 382: static void ps_fclose(struct termp *);
1.19 kristaps 383: static void ps_letter(struct termp *, char);
1.9 kristaps 384: static void ps_pclose(struct termp *);
1.13 kristaps 385: static void ps_pletter(struct termp *, int);
1.4 kristaps 386: static void ps_printf(struct termp *, const char *, ...);
387: static void ps_putchar(struct termp *, char);
1.9 kristaps 388: static void ps_setfont(struct termp *, enum termfont);
1.37 kristaps 389: static struct termp *pspdf_alloc(char *);
1.39 kristaps 390: static void pdf_obj(struct termp *, size_t);
1.37 kristaps 391:
392:
393: void *
394: pdf_alloc(char *outopts)
395: {
396: struct termp *p;
397:
1.38 kristaps 398: if (NULL != (p = pspdf_alloc(outopts)))
399: p->type = TERMTYPE_PDF;
1.37 kristaps 400:
401: return(p);
402: }
1.2 kristaps 403:
404:
1.1 kristaps 405: void *
1.17 kristaps 406: ps_alloc(char *outopts)
1.1 kristaps 407: {
408: struct termp *p;
1.37 kristaps 409:
1.38 kristaps 410: if (NULL != (p = pspdf_alloc(outopts)))
411: p->type = TERMTYPE_PS;
1.37 kristaps 412:
413: return(p);
414: }
415:
416:
417: static struct termp *
418: pspdf_alloc(char *outopts)
419: {
420: struct termp *p;
1.28 kristaps 421: size_t pagex, pagey, marginx, marginy, lineheight;
1.17 kristaps 422: const char *toks[2];
1.25 kristaps 423: const char *pp;
1.17 kristaps 424: char *v;
1.1 kristaps 425:
1.46 kristaps 426: p = term_alloc(TERMENC_ASCII);
1.1 kristaps 427:
1.19 kristaps 428: p->advance = ps_advance;
1.2 kristaps 429: p->begin = ps_begin;
430: p->end = ps_end;
431: p->endline = ps_endline;
1.19 kristaps 432: p->hspan = ps_hspan;
433: p->letter = ps_letter;
1.11 kristaps 434: p->width = ps_width;
1.21 kristaps 435:
1.17 kristaps 436: toks[0] = "paper";
437: toks[1] = NULL;
438:
1.25 kristaps 439: pp = NULL;
1.19 kristaps 440:
1.17 kristaps 441: while (outopts && *outopts)
442: switch (getsubopt(&outopts, UNCONST(toks), &v)) {
443: case (0):
1.25 kristaps 444: pp = v;
1.17 kristaps 445: break;
446: default:
447: break;
448: }
1.16 kristaps 449:
1.25 kristaps 450: /* Default to US letter (millimetres). */
451:
1.31 kristaps 452: pagex = 216;
453: pagey = 279;
1.25 kristaps 454:
455: /*
456: * The ISO-269 paper sizes can be calculated automatically, but
457: * it would require bringing in -lm for pow() and I'd rather not
458: * do that. So just do it the easy way for now. Since this
459: * only happens once, I'm not terribly concerned.
460: */
461:
462: if (pp && strcasecmp(pp, "letter")) {
463: if (0 == strcasecmp(pp, "a3")) {
464: pagex = 297;
465: pagey = 420;
466: } else if (0 == strcasecmp(pp, "a4")) {
467: pagex = 210;
468: pagey = 297;
469: } else if (0 == strcasecmp(pp, "a5")) {
470: pagex = 148;
471: pagey = 210;
472: } else if (0 == strcasecmp(pp, "legal")) {
473: pagex = 216;
474: pagey = 356;
475: } else if (2 != sscanf(pp, "%zux%zu", &pagex, &pagey))
476: fprintf(stderr, "%s: Unknown paper\n", pp);
1.27 kristaps 477: } else if (NULL == pp)
478: pp = "letter";
479:
480: /*
481: * This MUST be defined before any PNT2AFM or AFM2PNT
482: * calculations occur.
483: */
484:
485: p->engine.ps.scale = 11;
486:
1.25 kristaps 487: /* Remember millimetres -> AFM units. */
488:
489: pagex = PNT2AFM(p, ((double)pagex * 2.834));
490: pagey = PNT2AFM(p, ((double)pagey * 2.834));
491:
1.28 kristaps 492: /* Margins are 1/9 the page x and y. */
1.27 kristaps 493:
1.29 kristaps 494: marginx = /* LINTED */
495: (size_t)((double)pagex / 9.0);
496: marginy = /* LINTED */
497: (size_t)((double)pagey / 9.0);
1.27 kristaps 498:
1.31 kristaps 499: /* Line-height is 1.4em. */
500:
501: lineheight = PNT2AFM(p, ((double)p->engine.ps.scale * 1.4));
1.16 kristaps 502:
503: p->engine.ps.width = pagex;
504: p->engine.ps.height = pagey;
1.28 kristaps 505: p->engine.ps.header = pagey - (marginy / 2) - (lineheight / 2);
506: p->engine.ps.top = pagey - marginy;
507: p->engine.ps.footer = (marginy / 2) - (lineheight / 2);
508: p->engine.ps.bottom = marginy;
509: p->engine.ps.left = marginx;
1.18 kristaps 510: p->engine.ps.lineheight = lineheight;
1.16 kristaps 511:
1.28 kristaps 512: p->defrmargin = pagex - (marginx * 2);
1.1 kristaps 513: return(p);
514: }
515:
516:
517: void
1.37 kristaps 518: pspdf_free(void *arg)
1.1 kristaps 519: {
1.4 kristaps 520: struct termp *p;
521:
522: p = (struct termp *)arg;
523:
524: if (p->engine.ps.psmarg)
525: free(p->engine.ps.psmarg);
1.39 kristaps 526: if (p->engine.ps.pdfobjs)
527: free(p->engine.ps.pdfobjs);
1.4 kristaps 528:
529: term_free(p);
530: }
531:
532:
533: static void
534: ps_printf(struct termp *p, const char *fmt, ...)
535: {
536: va_list ap;
1.37 kristaps 537: int pos, len;
1.4 kristaps 538:
539: va_start(ap, fmt);
540:
541: /*
542: * If we're running in regular mode, then pipe directly into
543: * vprintf(). If we're processing margins, then push the data
544: * into our growable margin buffer.
545: */
1.1 kristaps 546:
1.29 kristaps 547: if ( ! (PS_MARGINS & p->engine.ps.flags)) {
1.37 kristaps 548: len = vprintf(fmt, ap);
1.4 kristaps 549: va_end(ap);
1.37 kristaps 550: p->engine.ps.pdfbytes += /* LINTED */
551: len < 0 ? 0 : (size_t)len;
1.4 kristaps 552: return;
553: }
554:
555: /*
556: * XXX: I assume that the in-margin print won't exceed
557: * PS_BUFSLOP (128 bytes), which is reasonable but still an
558: * assumption that will cause pukeage if it's not the case.
559: */
560:
1.40 joerg 561: ps_growbuf(p, PS_BUFSLOP);
1.4 kristaps 562:
563: pos = (int)p->engine.ps.psmargcur;
1.37 kristaps 564: len = vsnprintf(&p->engine.ps.psmarg[pos], PS_BUFSLOP, fmt, ap);
1.5 kristaps 565:
566: va_end(ap);
1.37 kristaps 567:
568: p->engine.ps.psmargcur = strlen(p->engine.ps.psmarg);
1.4 kristaps 569: }
570:
571:
572: static void
573: ps_putchar(struct termp *p, char c)
574: {
575: int pos;
576:
577: /* See ps_printf(). */
578:
1.29 kristaps 579: if ( ! (PS_MARGINS & p->engine.ps.flags)) {
1.44 kristaps 580: /* LINTED */
1.4 kristaps 581: putchar(c);
1.37 kristaps 582: p->engine.ps.pdfbytes++;
1.4 kristaps 583: return;
584: }
585:
1.40 joerg 586: ps_growbuf(p, 2);
1.4 kristaps 587:
588: pos = (int)p->engine.ps.psmargcur++;
1.5 kristaps 589: p->engine.ps.psmarg[pos++] = c;
1.4 kristaps 590: p->engine.ps.psmarg[pos] = '\0';
1.2 kristaps 591: }
592:
593:
1.37 kristaps 594: static void
1.39 kristaps 595: pdf_obj(struct termp *p, size_t obj)
596: {
597:
598: assert(obj > 0);
599:
600: if ((obj - 1) >= p->engine.ps.pdfobjsz) {
601: p->engine.ps.pdfobjsz = obj + 128;
602: p->engine.ps.pdfobjs = realloc
603: (p->engine.ps.pdfobjs,
604: p->engine.ps.pdfobjsz * sizeof(size_t));
605: if (NULL == p->engine.ps.pdfobjs) {
606: perror(NULL);
1.44 kristaps 607: exit((int)MANDOCLEVEL_SYSERR);
1.39 kristaps 608: }
609: }
610:
611: p->engine.ps.pdfobjs[(int)obj - 1] = p->engine.ps.pdfbytes;
612: ps_printf(p, "%zu 0 obj\n", obj);
613: }
614:
615:
616: static void
1.37 kristaps 617: ps_closepage(struct termp *p)
618: {
619: int i;
1.38 kristaps 620: size_t len, base;
621:
622: /*
623: * Close out a page that we've already flushed to output. In
624: * PostScript, we simply note that the page must be showed. In
625: * PDF, we must now create the Length, Resource, and Page node
626: * for the page contents.
627: */
1.37 kristaps 628:
629: assert(p->engine.ps.psmarg && p->engine.ps.psmarg[0]);
630: ps_printf(p, "%s", p->engine.ps.psmarg);
631:
1.38 kristaps 632: if (TERMTYPE_PS != p->type) {
1.37 kristaps 633: ps_printf(p, "ET\n");
1.38 kristaps 634:
1.37 kristaps 635: len = p->engine.ps.pdfbytes - p->engine.ps.pdflastpg;
1.38 kristaps 636: base = p->engine.ps.pages * 4 + p->engine.ps.pdfbody;
637:
638: ps_printf(p, "endstream\nendobj\n");
639:
640: /* Length of content. */
1.39 kristaps 641: pdf_obj(p, base + 1);
1.38 kristaps 642: ps_printf(p, "%zu\nendobj\n", len);
643:
644: /* Resource for content. */
1.39 kristaps 645: pdf_obj(p, base + 2);
1.38 kristaps 646: ps_printf(p, "<<\n/ProcSet [/PDF /Text]\n");
1.37 kristaps 647: ps_printf(p, "/Font <<\n");
1.39 kristaps 648: for (i = 0; i < (int)TERMFONT__MAX; i++)
1.37 kristaps 649: ps_printf(p, "/F%d %d 0 R\n", i, 3 + i);
1.38 kristaps 650: ps_printf(p, ">>\n>>\n");
651:
652: /* Page node. */
1.39 kristaps 653: pdf_obj(p, base + 3);
654: ps_printf(p, "<<\n");
1.37 kristaps 655: ps_printf(p, "/Type /Page\n");
656: ps_printf(p, "/Parent 2 0 R\n");
1.38 kristaps 657: ps_printf(p, "/Resources %zu 0 R\n", base + 2);
658: ps_printf(p, "/Contents %zu 0 R\n", base);
659: ps_printf(p, ">>\nendobj\n");
660: } else
661: ps_printf(p, "showpage\n");
1.37 kristaps 662:
663: p->engine.ps.pages++;
664: p->engine.ps.psrow = p->engine.ps.top;
665: assert( ! (PS_NEWPAGE & p->engine.ps.flags));
666: p->engine.ps.flags |= PS_NEWPAGE;
667: }
668:
669:
1.3 kristaps 670: /* ARGSUSED */
1.2 kristaps 671: static void
672: ps_end(struct termp *p)
673: {
1.38 kristaps 674: size_t i, xref, base;
1.2 kristaps 675:
1.4 kristaps 676: /*
677: * At the end of the file, do one last showpage. This is the
678: * same behaviour as groff(1) and works for multiple pages as
679: * well as just one.
680: */
681:
1.30 kristaps 682: if ( ! (PS_NEWPAGE & p->engine.ps.flags)) {
683: assert(0 == p->engine.ps.flags);
684: assert('\0' == p->engine.ps.last);
1.37 kristaps 685: ps_closepage(p);
1.30 kristaps 686: }
1.16 kristaps 687:
1.37 kristaps 688: if (TERMTYPE_PS == p->type) {
689: ps_printf(p, "%%%%Trailer\n");
690: ps_printf(p, "%%%%Pages: %zu\n", p->engine.ps.pages);
691: ps_printf(p, "%%%%EOF\n");
692: return;
693: }
694:
1.39 kristaps 695: pdf_obj(p, 2);
696: ps_printf(p, "<<\n/Type /Pages\n");
1.37 kristaps 697: ps_printf(p, "/MediaBox [0 0 %zu %zu]\n",
698: (size_t)AFM2PNT(p, p->engine.ps.width),
699: (size_t)AFM2PNT(p, p->engine.ps.height));
700:
701: ps_printf(p, "/Count %zu\n", p->engine.ps.pages);
702: ps_printf(p, "/Kids [");
703:
704: for (i = 0; i < p->engine.ps.pages; i++)
1.38 kristaps 705: ps_printf(p, " %zu 0 R", i * 4 +
706: p->engine.ps.pdfbody + 3);
707:
708: base = (p->engine.ps.pages - 1) * 4 +
709: p->engine.ps.pdfbody + 4;
710:
711: ps_printf(p, "]\n>>\nendobj\n");
1.39 kristaps 712: pdf_obj(p, base);
1.37 kristaps 713: ps_printf(p, "<<\n");
714: ps_printf(p, "/Type /Catalog\n");
715: ps_printf(p, "/Pages 2 0 R\n");
716: ps_printf(p, ">>\n");
717: xref = p->engine.ps.pdfbytes;
718: ps_printf(p, "xref\n");
1.38 kristaps 719: ps_printf(p, "0 %zu\n", base + 1);
1.39 kristaps 720: ps_printf(p, "0000000000 65535 f \n");
721:
722: for (i = 0; i < base; i++)
723: ps_printf(p, "%.10zu 00000 n \n",
724: p->engine.ps.pdfobjs[(int)i]);
725:
1.37 kristaps 726: ps_printf(p, "trailer\n");
727: ps_printf(p, "<<\n");
1.38 kristaps 728: ps_printf(p, "/Size %zu\n", base + 1);
729: ps_printf(p, "/Root %zu 0 R\n", base);
1.37 kristaps 730: ps_printf(p, "/Info 1 0 R\n");
731: ps_printf(p, ">>\n");
732: ps_printf(p, "startxref\n");
733: ps_printf(p, "%zu\n", xref);
734: ps_printf(p, "%%%%EOF\n");
1.2 kristaps 735: }
736:
737:
738: static void
739: ps_begin(struct termp *p)
740: {
1.13 kristaps 741: time_t t;
1.16 kristaps 742: int i;
1.2 kristaps 743:
1.9 kristaps 744: /*
745: * Print margins into margin buffer. Nothing gets output to the
746: * screen yet, so we don't need to initialise the primary state.
1.2 kristaps 747: */
748:
1.4 kristaps 749: if (p->engine.ps.psmarg) {
750: assert(p->engine.ps.psmargsz);
751: p->engine.ps.psmarg[0] = '\0';
752: }
753:
1.39 kristaps 754: /*p->engine.ps.pdfbytes = 0;*/
1.4 kristaps 755: p->engine.ps.psmargcur = 0;
1.29 kristaps 756: p->engine.ps.flags = PS_MARGINS;
1.16 kristaps 757: p->engine.ps.pscol = p->engine.ps.left;
758: p->engine.ps.psrow = p->engine.ps.header;
1.4 kristaps 759:
1.9 kristaps 760: ps_setfont(p, TERMFONT_NONE);
1.4 kristaps 761:
762: (*p->headf)(p, p->argf);
763: (*p->endline)(p);
764:
1.16 kristaps 765: p->engine.ps.pscol = p->engine.ps.left;
766: p->engine.ps.psrow = p->engine.ps.footer;
1.4 kristaps 767:
768: (*p->footf)(p, p->argf);
769: (*p->endline)(p);
770:
1.29 kristaps 771: p->engine.ps.flags &= ~PS_MARGINS;
1.9 kristaps 772:
1.29 kristaps 773: assert(0 == p->engine.ps.flags);
1.9 kristaps 774: assert(p->engine.ps.psmarg);
775: assert('\0' != p->engine.ps.psmarg[0]);
776:
777: /*
778: * Print header and initialise page state. Following this,
779: * stuff gets printed to the screen, so make sure we're sane.
780: */
1.4 kristaps 781:
1.13 kristaps 782: t = time(NULL);
783:
1.37 kristaps 784: if (TERMTYPE_PS == p->type) {
785: ps_printf(p, "%%!PS-Adobe-3.0\n");
786: ps_printf(p, "%%%%CreationDate: %s", ctime(&t));
787: ps_printf(p, "%%%%DocumentData: Clean7Bit\n");
788: ps_printf(p, "%%%%Orientation: Portrait\n");
789: ps_printf(p, "%%%%Pages: (atend)\n");
790: ps_printf(p, "%%%%PageOrder: Ascend\n");
791: ps_printf(p, "%%%%DocumentMedia: "
792: "Default %zu %zu 0 () ()\n",
793: (size_t)AFM2PNT(p, p->engine.ps.width),
794: (size_t)AFM2PNT(p, p->engine.ps.height));
795: ps_printf(p, "%%%%DocumentNeededResources: font");
796:
797: for (i = 0; i < (int)TERMFONT__MAX; i++)
798: ps_printf(p, " %s", fonts[i].name);
799:
800: ps_printf(p, "\n%%%%EndComments\n");
801: } else {
802: ps_printf(p, "%%PDF-1.1\n");
1.39 kristaps 803: pdf_obj(p, 1);
1.37 kristaps 804: ps_printf(p, "<<\n");
805: ps_printf(p, ">>\n");
806: ps_printf(p, "endobj\n");
807:
808: for (i = 0; i < (int)TERMFONT__MAX; i++) {
1.39 kristaps 809: pdf_obj(p, (size_t)i + 3);
1.37 kristaps 810: ps_printf(p, "<<\n");
811: ps_printf(p, "/Type /Font\n");
812: ps_printf(p, "/Subtype /Type1\n");
813: ps_printf(p, "/Name /F%zu\n", i);
814: ps_printf(p, "/BaseFont /%s\n", fonts[i].name);
815: ps_printf(p, ">>\n");
816: }
817: }
1.16 kristaps 818:
1.37 kristaps 819: p->engine.ps.pdfbody = (size_t)TERMFONT__MAX + 3;
1.16 kristaps 820: p->engine.ps.pscol = p->engine.ps.left;
821: p->engine.ps.psrow = p->engine.ps.top;
1.29 kristaps 822: p->engine.ps.flags |= PS_NEWPAGE;
1.33 kristaps 823: ps_setfont(p, TERMFONT_NONE);
1.2 kristaps 824: }
825:
826:
827: static void
1.13 kristaps 828: ps_pletter(struct termp *p, int c)
1.2 kristaps 829: {
1.14 kristaps 830: int f;
1.32 kristaps 831:
1.9 kristaps 832: /*
1.32 kristaps 833: * If we haven't opened a page context, then output that we're
834: * in a new page and make sure the font is correctly set.
1.9 kristaps 835: */
836:
1.32 kristaps 837: if (PS_NEWPAGE & p->engine.ps.flags) {
1.37 kristaps 838: if (TERMTYPE_PS == p->type) {
839: ps_printf(p, "%%%%Page: %zu %zu\n",
840: p->engine.ps.pages + 1,
841: p->engine.ps.pages + 1);
842: ps_printf(p, "/%s %zu selectfont\n",
843: fonts[(int)p->engine.ps.lastf].name,
844: p->engine.ps.scale);
845: } else {
1.39 kristaps 846: pdf_obj(p, p->engine.ps.pdfbody +
1.38 kristaps 847: p->engine.ps.pages * 4);
1.37 kristaps 848: ps_printf(p, "<<\n");
849: ps_printf(p, "/Length %zu 0 R\n",
1.38 kristaps 850: p->engine.ps.pdfbody + 1 +
851: p->engine.ps.pages * 4);
1.37 kristaps 852: ps_printf(p, ">>\nstream\n");
853: }
854: p->engine.ps.pdflastpg = p->engine.ps.pdfbytes;
1.32 kristaps 855: p->engine.ps.flags &= ~PS_NEWPAGE;
856: }
857:
858: /*
859: * If we're not in a PostScript "word" context, then open one
860: * now at the current cursor.
861: */
1.30 kristaps 862:
1.29 kristaps 863: if ( ! (PS_INLINE & p->engine.ps.flags)) {
1.37 kristaps 864: if (TERMTYPE_PS != p->type) {
865: ps_printf(p, "BT\n/F%d %zu Tf\n",
866: (int)p->engine.ps.lastf,
867: p->engine.ps.scale);
868: ps_printf(p, "%.3f %.3f Td\n(",
869: AFM2PNT(p, p->engine.ps.pscol),
870: AFM2PNT(p, p->engine.ps.psrow));
871: } else
872: ps_printf(p, "%.3f %.3f moveto\n(",
873: AFM2PNT(p, p->engine.ps.pscol),
874: AFM2PNT(p, p->engine.ps.psrow));
1.29 kristaps 875: p->engine.ps.flags |= PS_INLINE;
1.2 kristaps 876: }
877:
1.29 kristaps 878: assert( ! (PS_NEWPAGE & p->engine.ps.flags));
879:
1.2 kristaps 880: /*
881: * We need to escape these characters as per the PostScript
882: * specification. We would also escape non-graphable characters
883: * (like tabs), but none of them would get to this point and
884: * it's superfluous to abort() on them.
885: */
886:
887: switch (c) {
888: case ('('):
889: /* FALLTHROUGH */
890: case (')'):
891: /* FALLTHROUGH */
892: case ('\\'):
1.4 kristaps 893: ps_putchar(p, '\\');
1.2 kristaps 894: break;
895: default:
896: break;
897: }
898:
899: /* Write the character and adjust where we are on the page. */
1.9 kristaps 900:
1.14 kristaps 901: f = (int)p->engine.ps.lastf;
1.13 kristaps 902:
1.45 schwarze 903: if (c <= 32 || (c - 32 >= MAXCHAR)) {
1.13 kristaps 904: ps_putchar(p, ' ');
1.36 kristaps 905: p->engine.ps.pscol += (size_t)fonts[f].gly[0].wx;
1.13 kristaps 906: return;
907: }
908:
1.25 kristaps 909: ps_putchar(p, (char)c);
1.14 kristaps 910: c -= 32;
1.36 kristaps 911: p->engine.ps.pscol += (size_t)fonts[f].gly[c].wx;
1.2 kristaps 912: }
913:
914:
915: static void
1.9 kristaps 916: ps_pclose(struct termp *p)
917: {
918:
919: /*
920: * Spit out that we're exiting a word context (this is a
921: * "partial close" because we don't check the last-char buffer
922: * or anything).
923: */
924:
1.29 kristaps 925: if ( ! (PS_INLINE & p->engine.ps.flags))
1.9 kristaps 926: return;
927:
1.37 kristaps 928: if (TERMTYPE_PS != p->type) {
929: ps_printf(p, ") Tj\nET\n");
930: } else
931: ps_printf(p, ") show\n");
932:
1.29 kristaps 933: p->engine.ps.flags &= ~PS_INLINE;
1.9 kristaps 934: }
935:
936:
937: static void
938: ps_fclose(struct termp *p)
939: {
940:
941: /*
942: * Strong closure: if we have a last-char, spit it out after
943: * checking that we're in the right font mode. This will of
944: * course open a new scope, if applicable.
945: *
946: * Following this, close out any scope that's open.
947: */
948:
949: if ('\0' != p->engine.ps.last) {
950: if (p->engine.ps.lastf != TERMFONT_NONE) {
951: ps_pclose(p);
952: ps_setfont(p, TERMFONT_NONE);
953: }
954: ps_pletter(p, p->engine.ps.last);
955: p->engine.ps.last = '\0';
956: }
957:
1.29 kristaps 958: if ( ! (PS_INLINE & p->engine.ps.flags))
1.9 kristaps 959: return;
960:
961: ps_pclose(p);
962: }
963:
964:
965: static void
1.8 kristaps 966: ps_letter(struct termp *p, char c)
967: {
968: char cc;
1.9 kristaps 969:
970: /*
971: * State machine dictates whether to buffer the last character
972: * or not. Basically, encoded words are detected by checking if
973: * we're an "8" and switching on the buffer. Then we put "8" in
974: * our buffer, and on the next charater, flush both character
975: * and buffer. Thus, "regular" words are detected by having a
976: * regular character and a regular buffer character.
977: */
978:
1.8 kristaps 979: if ('\0' == p->engine.ps.last) {
980: assert(8 != c);
981: p->engine.ps.last = c;
982: return;
983: } else if (8 == p->engine.ps.last) {
984: assert(8 != c);
1.9 kristaps 985: p->engine.ps.last = '\0';
1.8 kristaps 986: } else if (8 == c) {
987: assert(8 != p->engine.ps.last);
1.9 kristaps 988: if ('_' == p->engine.ps.last) {
989: if (p->engine.ps.lastf != TERMFONT_UNDER) {
990: ps_pclose(p);
991: ps_setfont(p, TERMFONT_UNDER);
992: }
993: } else if (p->engine.ps.lastf != TERMFONT_BOLD) {
994: ps_pclose(p);
995: ps_setfont(p, TERMFONT_BOLD);
996: }
1.8 kristaps 997: p->engine.ps.last = c;
998: return;
999: } else {
1.9 kristaps 1000: if (p->engine.ps.lastf != TERMFONT_NONE) {
1001: ps_pclose(p);
1002: ps_setfont(p, TERMFONT_NONE);
1003: }
1.8 kristaps 1004: cc = p->engine.ps.last;
1005: p->engine.ps.last = c;
1006: c = cc;
1007: }
1008:
1.9 kristaps 1009: ps_pletter(p, c);
1.8 kristaps 1010: }
1011:
1012:
1013: static void
1.2 kristaps 1014: ps_advance(struct termp *p, size_t len)
1015: {
1016:
1.9 kristaps 1017: /*
1018: * Advance some spaces. This can probably be made smarter,
1019: * i.e., to have multiple space-separated words in the same
1020: * scope, but this is easier: just close out the current scope
1021: * and readjust our column settings.
1022: */
1.8 kristaps 1023:
1.9 kristaps 1024: ps_fclose(p);
1.14 kristaps 1025: p->engine.ps.pscol += len;
1.2 kristaps 1026: }
1027:
1028:
1029: static void
1030: ps_endline(struct termp *p)
1031: {
1.8 kristaps 1032:
1.9 kristaps 1033: /* Close out any scopes we have open: we're at eoln. */
1034:
1035: ps_fclose(p);
1.2 kristaps 1036:
1.9 kristaps 1037: /*
1038: * If we're in the margin, don't try to recalculate our current
1039: * row. XXX: if the column tries to be fancy with multiple
1040: * lines, we'll do nasty stuff.
1041: */
1.2 kristaps 1042:
1.29 kristaps 1043: if (PS_MARGINS & p->engine.ps.flags)
1044: return;
1045:
1046: /* Left-justify. */
1047:
1048: p->engine.ps.pscol = p->engine.ps.left;
1049:
1050: /* If we haven't printed anything, return. */
1051:
1052: if (PS_NEWPAGE & p->engine.ps.flags)
1.2 kristaps 1053: return;
1054:
1.9 kristaps 1055: /*
1056: * Put us down a line. If we're at the page bottom, spit out a
1057: * showpage and restart our row.
1058: */
1059:
1.16 kristaps 1060: if (p->engine.ps.psrow >= p->engine.ps.lineheight +
1061: p->engine.ps.bottom) {
1062: p->engine.ps.psrow -= p->engine.ps.lineheight;
1.2 kristaps 1063: return;
1064: }
1065:
1.37 kristaps 1066: ps_closepage(p);
1.1 kristaps 1067: }
1.9 kristaps 1068:
1069:
1070: static void
1071: ps_setfont(struct termp *p, enum termfont f)
1072: {
1073:
1.16 kristaps 1074: assert(f < TERMFONT__MAX);
1.32 kristaps 1075: p->engine.ps.lastf = f;
1076:
1077: /*
1078: * If we're still at the top of the page, let the font-setting
1079: * be delayed until we actually have stuff to print.
1080: */
1081:
1082: if (PS_NEWPAGE & p->engine.ps.flags)
1083: return;
1084:
1.37 kristaps 1085: if (TERMTYPE_PS == p->type)
1086: ps_printf(p, "/%s %zu selectfont\n",
1087: fonts[(int)f].name,
1088: p->engine.ps.scale);
1089: else
1090: ps_printf(p, "/F%d %zu Tf\n",
1091: (int)f,
1092: p->engine.ps.scale);
1.9 kristaps 1093: }
1094:
1.11 kristaps 1095:
1.12 kristaps 1096: /* ARGSUSED */
1.11 kristaps 1097: static size_t
1098: ps_width(const struct termp *p, char c)
1099: {
1100:
1.14 kristaps 1101: if (c <= 32 || c - 32 >= MAXCHAR)
1.36 kristaps 1102: return((size_t)fonts[(int)TERMFONT_NONE].gly[0].wx);
1.14 kristaps 1103:
1104: c -= 32;
1.36 kristaps 1105: return((size_t)fonts[(int)TERMFONT_NONE].gly[(int)c].wx);
1.11 kristaps 1106: }
1.19 kristaps 1107:
1108:
1.20 kristaps 1109: static double
1.19 kristaps 1110: ps_hspan(const struct termp *p, const struct roffsu *su)
1111: {
1112: double r;
1113:
1114: /*
1115: * All of these measurements are derived by converting from the
1.21 kristaps 1116: * native measurement to AFM units.
1.19 kristaps 1117: */
1118:
1119: switch (su->unit) {
1120: case (SCALE_CM):
1.21 kristaps 1121: r = PNT2AFM(p, su->scale * 28.34);
1.19 kristaps 1122: break;
1123: case (SCALE_IN):
1.21 kristaps 1124: r = PNT2AFM(p, su->scale * 72);
1.19 kristaps 1125: break;
1126: case (SCALE_PC):
1.21 kristaps 1127: r = PNT2AFM(p, su->scale * 12);
1.19 kristaps 1128: break;
1129: case (SCALE_PT):
1.21 kristaps 1130: r = PNT2AFM(p, su->scale * 100);
1.19 kristaps 1131: break;
1132: case (SCALE_EM):
1.36 kristaps 1133: r = su->scale *
1.19 kristaps 1134: fonts[(int)TERMFONT_NONE].gly[109 - 32].wx;
1135: break;
1136: case (SCALE_MM):
1.21 kristaps 1137: r = PNT2AFM(p, su->scale * 2.834);
1.19 kristaps 1138: break;
1139: case (SCALE_EN):
1.36 kristaps 1140: r = su->scale *
1.19 kristaps 1141: fonts[(int)TERMFONT_NONE].gly[110 - 32].wx;
1142: break;
1143: case (SCALE_VS):
1144: r = su->scale * p->engine.ps.lineheight;
1145: break;
1146: default:
1147: r = su->scale;
1148: break;
1149: }
1150:
1.20 kristaps 1151: return(r);
1.19 kristaps 1152: }
1153:
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