Annotation of mandoc/term_ps.c, Revision 1.66
1.66 ! schwarze 1: /* $Id: term_ps.c,v 1.65 2014/08/24 23:43:13 schwarze Exp $ */
1.1 kristaps 2: /*
1.53 schwarze 3: * Copyright (c) 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
1.57 schwarze 4: * Copyright (c) 2014 Ingo Schwarze <schwarze@openbsd.org>
1.1 kristaps 5: *
6: * Permission to use, copy, modify, and distribute this software for any
7: * purpose with or without fee is hereby granted, provided that the above
8: * copyright notice and this permission notice appear in all copies.
9: *
10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17: */
18: #include "config.h"
19:
1.43 kristaps 20: #include <sys/types.h>
1.4 kristaps 21:
1.2 kristaps 22: #include <assert.h>
1.4 kristaps 23: #include <stdarg.h>
1.17 kristaps 24: #include <stdint.h>
1.2 kristaps 25: #include <stdio.h>
1.1 kristaps 26: #include <stdlib.h>
1.4 kristaps 27: #include <string.h>
1.26 kristaps 28: #include <unistd.h>
1.1 kristaps 29:
1.42 schwarze 30: #include "mandoc.h"
1.56 schwarze 31: #include "mandoc_aux.h"
1.1 kristaps 32: #include "out.h"
33: #include "main.h"
34: #include "term.h"
35:
1.50 kristaps 36: /* These work the buffer used by the header and footer. */
37: #define PS_BUFSLOP 128
38:
1.21 kristaps 39: /* Convert PostScript point "x" to an AFM unit. */
1.59 schwarze 40: #define PNT2AFM(p, x) \
1.50 kristaps 41: (size_t)((double)(x) * (1000.0 / (double)(p)->ps->scale))
1.21 kristaps 42:
43: /* Convert an AFM unit "x" to a PostScript points */
1.59 schwarze 44: #define AFM2PNT(p, x) \
1.50 kristaps 45: ((double)(x) / (1000.0 / (double)(p)->ps->scale))
1.21 kristaps 46:
1.13 kristaps 47: struct glyph {
1.36 kristaps 48: unsigned short wx; /* WX in AFM */
1.13 kristaps 49: };
50:
51: struct font {
52: const char *name; /* FontName in AFM */
1.15 kristaps 53: #define MAXCHAR 95 /* total characters we can handle */
1.13 kristaps 54: struct glyph gly[MAXCHAR]; /* glyph metrics */
55: };
56:
1.50 kristaps 57: struct termp_ps {
58: int flags;
59: #define PS_INLINE (1 << 0) /* we're in a word */
60: #define PS_MARGINS (1 << 1) /* we're in the margins */
61: #define PS_NEWPAGE (1 << 2) /* new page, no words yet */
62: size_t pscol; /* visible column (AFM units) */
63: size_t psrow; /* visible row (AFM units) */
64: char *psmarg; /* margin buf */
65: size_t psmargsz; /* margin buf size */
66: size_t psmargcur; /* cur index in margin buf */
67: char last; /* character buffer */
68: enum termfont lastf; /* last set font */
1.65 schwarze 69: enum termfont nextf; /* building next font here */
1.50 kristaps 70: size_t scale; /* font scaling factor */
71: size_t pages; /* number of pages shown */
72: size_t lineheight; /* line height (AFM units) */
73: size_t top; /* body top (AFM units) */
74: size_t bottom; /* body bottom (AFM units) */
75: size_t height; /* page height (AFM units */
76: size_t width; /* page width (AFM units) */
1.57 schwarze 77: size_t lastwidth; /* page width before last ll */
1.50 kristaps 78: size_t left; /* body left (AFM units) */
79: size_t header; /* header pos (AFM units) */
80: size_t footer; /* footer pos (AFM units) */
1.59 schwarze 81: size_t pdfbytes; /* current output byte */
1.50 kristaps 82: size_t pdflastpg; /* byte of last page mark */
83: size_t pdfbody; /* start of body object */
84: size_t *pdfobjs; /* table of object offsets */
85: size_t pdfobjsz; /* size of pdfobjs */
86: };
87:
88: static double ps_hspan(const struct termp *,
89: const struct roffsu *);
90: static size_t ps_width(const struct termp *, int);
91: static void ps_advance(struct termp *, size_t);
92: static void ps_begin(struct termp *);
93: static void ps_closepage(struct termp *);
94: static void ps_end(struct termp *);
95: static void ps_endline(struct termp *);
96: static void ps_fclose(struct termp *);
97: static void ps_growbuf(struct termp *, size_t);
98: static void ps_letter(struct termp *, int);
99: static void ps_pclose(struct termp *);
100: static void ps_pletter(struct termp *, int);
1.55 joerg 101: #if __GNUC__ - 0 >= 4
102: __attribute__((__format__ (__printf__, 2, 3)))
103: #endif
1.50 kristaps 104: static void ps_printf(struct termp *, const char *, ...);
105: static void ps_putchar(struct termp *, char);
106: static void ps_setfont(struct termp *, enum termfont);
1.58 schwarze 107: static void ps_setwidth(struct termp *, int, size_t);
1.50 kristaps 108: static struct termp *pspdf_alloc(char *);
109: static void pdf_obj(struct termp *, size_t);
110:
1.13 kristaps 111: /*
112: * We define, for the time being, three fonts: bold, oblique/italic, and
113: * normal (roman). The following table hard-codes the font metrics for
114: * ASCII, i.e., 32--127.
115: */
116:
1.16 kristaps 117: static const struct font fonts[TERMFONT__MAX] = {
1.24 kristaps 118: { "Times-Roman", {
119: { 250 },
120: { 333 },
121: { 408 },
122: { 500 },
123: { 500 },
124: { 833 },
125: { 778 },
126: { 333 },
127: { 333 },
128: { 333 },
129: { 500 },
130: { 564 },
131: { 250 },
132: { 333 },
133: { 250 },
134: { 278 },
135: { 500 },
136: { 500 },
137: { 500 },
138: { 500 },
139: { 500 },
140: { 500 },
141: { 500 },
142: { 500 },
143: { 500 },
144: { 500 },
145: { 278 },
146: { 278 },
147: { 564 },
148: { 564 },
149: { 564 },
150: { 444 },
151: { 921 },
152: { 722 },
153: { 667 },
154: { 667 },
155: { 722 },
156: { 611 },
157: { 556 },
158: { 722 },
159: { 722 },
160: { 333 },
161: { 389 },
162: { 722 },
163: { 611 },
164: { 889 },
165: { 722 },
166: { 722 },
167: { 556 },
168: { 722 },
169: { 667 },
170: { 556 },
171: { 611 },
172: { 722 },
173: { 722 },
174: { 944 },
175: { 722 },
176: { 722 },
177: { 611 },
178: { 333 },
179: { 278 },
180: { 333 },
181: { 469 },
182: { 500 },
183: { 333 },
184: { 444 },
185: { 500 },
186: { 444 },
187: { 500},
188: { 444},
189: { 333},
190: { 500},
191: { 500},
192: { 278},
193: { 278},
194: { 500},
195: { 278},
196: { 778},
197: { 500},
198: { 500},
199: { 500},
200: { 500},
201: { 333},
202: { 389},
203: { 278},
204: { 500},
205: { 500},
206: { 722},
207: { 500},
208: { 500},
209: { 444},
210: { 480},
211: { 200},
212: { 480},
213: { 541},
214: } },
215: { "Times-Bold", {
216: { 250 },
217: { 333 },
218: { 555 },
219: { 500 },
220: { 500 },
221: { 1000 },
222: { 833 },
223: { 333 },
224: { 333 },
225: { 333 },
226: { 500 },
227: { 570 },
228: { 250 },
229: { 333 },
230: { 250 },
231: { 278 },
232: { 500 },
233: { 500 },
234: { 500 },
235: { 500 },
236: { 500 },
237: { 500 },
238: { 500 },
239: { 500 },
240: { 500 },
241: { 500 },
242: { 333 },
243: { 333 },
244: { 570 },
245: { 570 },
246: { 570 },
247: { 500 },
248: { 930 },
249: { 722 },
250: { 667 },
251: { 722 },
252: { 722 },
253: { 667 },
254: { 611 },
255: { 778 },
256: { 778 },
257: { 389 },
258: { 500 },
259: { 778 },
260: { 667 },
261: { 944 },
262: { 722 },
263: { 778 },
264: { 611 },
265: { 778 },
266: { 722 },
267: { 556 },
268: { 667 },
269: { 722 },
270: { 722 },
271: { 1000 },
272: { 722 },
273: { 722 },
274: { 667 },
275: { 333 },
276: { 278 },
277: { 333 },
278: { 581 },
279: { 500 },
280: { 333 },
281: { 500 },
282: { 556 },
283: { 444 },
1.22 kristaps 284: { 556 },
1.24 kristaps 285: { 444 },
286: { 333 },
1.22 kristaps 287: { 500 },
1.24 kristaps 288: { 556 },
1.22 kristaps 289: { 278 },
1.24 kristaps 290: { 333 },
291: { 556 },
1.22 kristaps 292: { 278 },
1.24 kristaps 293: { 833 },
1.22 kristaps 294: { 556 },
1.24 kristaps 295: { 500 },
1.22 kristaps 296: { 556 },
297: { 556 },
298: { 444 },
1.24 kristaps 299: { 389 },
300: { 333 },
1.22 kristaps 301: { 556 },
302: { 500 },
1.24 kristaps 303: { 722 },
304: { 500 },
1.22 kristaps 305: { 500 },
1.24 kristaps 306: { 444 },
307: { 394 },
308: { 220 },
309: { 394 },
310: { 520 },
1.13 kristaps 311: } },
1.24 kristaps 312: { "Times-Italic", {
313: { 250 },
314: { 333 },
315: { 420 },
316: { 500 },
317: { 500 },
318: { 833 },
319: { 778 },
320: { 333 },
321: { 333 },
322: { 333 },
323: { 500 },
324: { 675 },
325: { 250 },
326: { 333 },
327: { 250 },
328: { 278 },
329: { 500 },
330: { 500 },
331: { 500 },
332: { 500 },
333: { 500 },
334: { 500 },
335: { 500 },
336: { 500 },
337: { 500 },
338: { 500 },
339: { 333 },
340: { 333 },
341: { 675 },
342: { 675 },
343: { 675 },
344: { 500 },
345: { 920 },
346: { 611 },
347: { 611 },
348: { 667 },
349: { 722 },
350: { 611 },
351: { 611 },
352: { 722 },
353: { 722 },
354: { 333 },
355: { 444 },
356: { 667 },
357: { 556 },
358: { 833 },
359: { 667 },
360: { 722 },
361: { 611 },
362: { 722 },
363: { 611 },
364: { 500 },
365: { 556 },
366: { 722 },
367: { 611 },
368: { 833 },
369: { 611 },
370: { 556 },
371: { 556 },
372: { 389 },
373: { 278 },
374: { 389 },
375: { 422 },
376: { 500 },
377: { 333 },
378: { 500 },
379: { 500 },
380: { 444 },
1.22 kristaps 381: { 500 },
1.24 kristaps 382: { 444 },
383: { 278 },
1.22 kristaps 384: { 500 },
385: { 500 },
386: { 278 },
1.24 kristaps 387: { 278 },
388: { 444 },
389: { 278 },
390: { 722 },
391: { 500 },
392: { 500 },
393: { 500 },
1.22 kristaps 394: { 500 },
1.24 kristaps 395: { 389 },
396: { 389 },
1.22 kristaps 397: { 278 },
398: { 500 },
1.24 kristaps 399: { 444 },
400: { 667 },
401: { 444 },
402: { 444 },
403: { 389 },
404: { 400 },
1.22 kristaps 405: { 275 },
1.24 kristaps 406: { 400 },
407: { 541 },
1.13 kristaps 408: } },
1.65 schwarze 409: { "Times-BoldItalic", {
410: { 250 },
411: { 389 },
412: { 555 },
413: { 500 },
414: { 500 },
415: { 833 },
416: { 778 },
417: { 333 },
418: { 333 },
419: { 333 },
420: { 500 },
421: { 570 },
422: { 250 },
423: { 333 },
424: { 250 },
425: { 278 },
426: { 500 },
427: { 500 },
428: { 500 },
429: { 500 },
430: { 500 },
431: { 500 },
432: { 500 },
433: { 500 },
434: { 500 },
435: { 500 },
436: { 333 },
437: { 333 },
438: { 570 },
439: { 570 },
440: { 570 },
441: { 500 },
442: { 832 },
443: { 667 },
444: { 667 },
445: { 667 },
446: { 722 },
447: { 667 },
448: { 667 },
449: { 722 },
450: { 778 },
451: { 389 },
452: { 500 },
453: { 667 },
454: { 611 },
455: { 889 },
456: { 722 },
457: { 722 },
458: { 611 },
459: { 722 },
460: { 667 },
461: { 556 },
462: { 611 },
463: { 722 },
464: { 667 },
465: { 889 },
466: { 667 },
467: { 611 },
468: { 611 },
469: { 333 },
470: { 278 },
471: { 333 },
472: { 570 },
473: { 500 },
474: { 333 },
475: { 500 },
476: { 500 },
477: { 444 },
478: { 500 },
479: { 444 },
480: { 333 },
481: { 500 },
482: { 556 },
483: { 278 },
484: { 278 },
485: { 500 },
486: { 278 },
487: { 778 },
488: { 556 },
489: { 500 },
490: { 500 },
491: { 500 },
492: { 389 },
493: { 389 },
494: { 278 },
495: { 556 },
496: { 444 },
497: { 667 },
498: { 500 },
499: { 444 },
500: { 389 },
501: { 348 },
502: { 220 },
503: { 348 },
504: { 570 },
505: } },
1.13 kristaps 506: };
507:
1.37 kristaps 508: void *
509: pdf_alloc(char *outopts)
510: {
511: struct termp *p;
512:
1.38 kristaps 513: if (NULL != (p = pspdf_alloc(outopts)))
514: p->type = TERMTYPE_PDF;
1.37 kristaps 515:
516: return(p);
517: }
1.2 kristaps 518:
1.1 kristaps 519: void *
1.17 kristaps 520: ps_alloc(char *outopts)
1.1 kristaps 521: {
522: struct termp *p;
1.37 kristaps 523:
1.38 kristaps 524: if (NULL != (p = pspdf_alloc(outopts)))
525: p->type = TERMTYPE_PS;
1.37 kristaps 526:
527: return(p);
528: }
529:
530: static struct termp *
531: pspdf_alloc(char *outopts)
532: {
533: struct termp *p;
1.52 kristaps 534: unsigned int pagex, pagey;
535: size_t marginx, marginy, lineheight;
1.17 kristaps 536: const char *toks[2];
1.25 kristaps 537: const char *pp;
1.17 kristaps 538: char *v;
1.1 kristaps 539:
1.51 kristaps 540: p = mandoc_calloc(1, sizeof(struct termp));
541: p->enc = TERMENC_ASCII;
1.50 kristaps 542: p->ps = mandoc_calloc(1, sizeof(struct termp_ps));
1.1 kristaps 543:
1.19 kristaps 544: p->advance = ps_advance;
1.2 kristaps 545: p->begin = ps_begin;
546: p->end = ps_end;
547: p->endline = ps_endline;
1.19 kristaps 548: p->hspan = ps_hspan;
549: p->letter = ps_letter;
1.57 schwarze 550: p->setwidth = ps_setwidth;
1.11 kristaps 551: p->width = ps_width;
1.59 schwarze 552:
1.17 kristaps 553: toks[0] = "paper";
554: toks[1] = NULL;
555:
1.25 kristaps 556: pp = NULL;
1.19 kristaps 557:
1.17 kristaps 558: while (outopts && *outopts)
559: switch (getsubopt(&outopts, UNCONST(toks), &v)) {
1.59 schwarze 560: case 0:
1.25 kristaps 561: pp = v;
1.17 kristaps 562: break;
563: default:
564: break;
565: }
1.16 kristaps 566:
1.25 kristaps 567: /* Default to US letter (millimetres). */
568:
1.31 kristaps 569: pagex = 216;
570: pagey = 279;
1.25 kristaps 571:
572: /*
573: * The ISO-269 paper sizes can be calculated automatically, but
574: * it would require bringing in -lm for pow() and I'd rather not
575: * do that. So just do it the easy way for now. Since this
576: * only happens once, I'm not terribly concerned.
577: */
578:
579: if (pp && strcasecmp(pp, "letter")) {
580: if (0 == strcasecmp(pp, "a3")) {
581: pagex = 297;
582: pagey = 420;
583: } else if (0 == strcasecmp(pp, "a4")) {
584: pagex = 210;
585: pagey = 297;
586: } else if (0 == strcasecmp(pp, "a5")) {
587: pagex = 148;
588: pagey = 210;
589: } else if (0 == strcasecmp(pp, "legal")) {
590: pagex = 216;
591: pagey = 356;
1.52 kristaps 592: } else if (2 != sscanf(pp, "%ux%u", &pagex, &pagey))
1.25 kristaps 593: fprintf(stderr, "%s: Unknown paper\n", pp);
1.54 schwarze 594: }
1.27 kristaps 595:
1.59 schwarze 596: /*
1.27 kristaps 597: * This MUST be defined before any PNT2AFM or AFM2PNT
598: * calculations occur.
599: */
600:
1.50 kristaps 601: p->ps->scale = 11;
1.27 kristaps 602:
1.25 kristaps 603: /* Remember millimetres -> AFM units. */
604:
605: pagex = PNT2AFM(p, ((double)pagex * 2.834));
606: pagey = PNT2AFM(p, ((double)pagey * 2.834));
607:
1.28 kristaps 608: /* Margins are 1/9 the page x and y. */
1.27 kristaps 609:
1.59 schwarze 610: marginx = (size_t)((double)pagex / 9.0);
611: marginy = (size_t)((double)pagey / 9.0);
1.27 kristaps 612:
1.31 kristaps 613: /* Line-height is 1.4em. */
614:
1.50 kristaps 615: lineheight = PNT2AFM(p, ((double)p->ps->scale * 1.4));
1.16 kristaps 616:
1.57 schwarze 617: p->ps->width = p->ps->lastwidth = (size_t)pagex;
1.52 kristaps 618: p->ps->height = (size_t)pagey;
1.50 kristaps 619: p->ps->header = pagey - (marginy / 2) - (lineheight / 2);
620: p->ps->top = pagey - marginy;
621: p->ps->footer = (marginy / 2) - (lineheight / 2);
622: p->ps->bottom = marginy;
623: p->ps->left = marginx;
624: p->ps->lineheight = lineheight;
1.16 kristaps 625:
1.28 kristaps 626: p->defrmargin = pagex - (marginx * 2);
1.1 kristaps 627: return(p);
1.57 schwarze 628: }
629:
630: static void
1.58 schwarze 631: ps_setwidth(struct termp *p, int iop, size_t width)
1.57 schwarze 632: {
633: size_t lastwidth;
634:
635: lastwidth = p->ps->width;
1.58 schwarze 636: if (0 < iop)
637: p->ps->width += width;
638: else if (0 > iop)
639: p->ps->width -= width;
640: else
641: p->ps->width = width ? width : p->ps->lastwidth;
1.57 schwarze 642: p->ps->lastwidth = lastwidth;
1.1 kristaps 643: }
644:
645: void
1.37 kristaps 646: pspdf_free(void *arg)
1.1 kristaps 647: {
1.4 kristaps 648: struct termp *p;
649:
650: p = (struct termp *)arg;
651:
1.50 kristaps 652: if (p->ps->psmarg)
653: free(p->ps->psmarg);
654: if (p->ps->pdfobjs)
655: free(p->ps->pdfobjs);
1.4 kristaps 656:
1.50 kristaps 657: free(p->ps);
1.4 kristaps 658: term_free(p);
659: }
660:
661: static void
662: ps_printf(struct termp *p, const char *fmt, ...)
663: {
664: va_list ap;
1.37 kristaps 665: int pos, len;
1.4 kristaps 666:
667: va_start(ap, fmt);
668:
669: /*
670: * If we're running in regular mode, then pipe directly into
671: * vprintf(). If we're processing margins, then push the data
672: * into our growable margin buffer.
673: */
1.1 kristaps 674:
1.50 kristaps 675: if ( ! (PS_MARGINS & p->ps->flags)) {
1.37 kristaps 676: len = vprintf(fmt, ap);
1.4 kristaps 677: va_end(ap);
1.59 schwarze 678: p->ps->pdfbytes += len < 0 ? 0 : (size_t)len;
1.4 kristaps 679: return;
680: }
681:
1.59 schwarze 682: /*
1.4 kristaps 683: * XXX: I assume that the in-margin print won't exceed
684: * PS_BUFSLOP (128 bytes), which is reasonable but still an
685: * assumption that will cause pukeage if it's not the case.
686: */
687:
1.40 joerg 688: ps_growbuf(p, PS_BUFSLOP);
1.4 kristaps 689:
1.50 kristaps 690: pos = (int)p->ps->psmargcur;
1.54 schwarze 691: vsnprintf(&p->ps->psmarg[pos], PS_BUFSLOP, fmt, ap);
1.5 kristaps 692:
693: va_end(ap);
1.37 kristaps 694:
1.50 kristaps 695: p->ps->psmargcur = strlen(p->ps->psmarg);
1.4 kristaps 696: }
697:
698: static void
699: ps_putchar(struct termp *p, char c)
700: {
701: int pos;
702:
703: /* See ps_printf(). */
704:
1.50 kristaps 705: if ( ! (PS_MARGINS & p->ps->flags)) {
1.4 kristaps 706: putchar(c);
1.50 kristaps 707: p->ps->pdfbytes++;
1.4 kristaps 708: return;
709: }
710:
1.40 joerg 711: ps_growbuf(p, 2);
1.4 kristaps 712:
1.50 kristaps 713: pos = (int)p->ps->psmargcur++;
714: p->ps->psmarg[pos++] = c;
715: p->ps->psmarg[pos] = '\0';
1.2 kristaps 716: }
717:
1.37 kristaps 718: static void
1.39 kristaps 719: pdf_obj(struct termp *p, size_t obj)
720: {
721:
722: assert(obj > 0);
723:
1.50 kristaps 724: if ((obj - 1) >= p->ps->pdfobjsz) {
725: p->ps->pdfobjsz = obj + 128;
1.60 schwarze 726: p->ps->pdfobjs = mandoc_reallocarray(p->ps->pdfobjs,
727: p->ps->pdfobjsz, sizeof(size_t));
1.39 kristaps 728: }
729:
1.50 kristaps 730: p->ps->pdfobjs[(int)obj - 1] = p->ps->pdfbytes;
1.39 kristaps 731: ps_printf(p, "%zu 0 obj\n", obj);
732: }
733:
734: static void
1.37 kristaps 735: ps_closepage(struct termp *p)
736: {
737: int i;
1.38 kristaps 738: size_t len, base;
739:
740: /*
741: * Close out a page that we've already flushed to output. In
742: * PostScript, we simply note that the page must be showed. In
743: * PDF, we must now create the Length, Resource, and Page node
744: * for the page contents.
745: */
1.37 kristaps 746:
1.50 kristaps 747: assert(p->ps->psmarg && p->ps->psmarg[0]);
748: ps_printf(p, "%s", p->ps->psmarg);
1.37 kristaps 749:
1.38 kristaps 750: if (TERMTYPE_PS != p->type) {
1.37 kristaps 751: ps_printf(p, "ET\n");
1.38 kristaps 752:
1.50 kristaps 753: len = p->ps->pdfbytes - p->ps->pdflastpg;
754: base = p->ps->pages * 4 + p->ps->pdfbody;
1.38 kristaps 755:
756: ps_printf(p, "endstream\nendobj\n");
757:
758: /* Length of content. */
1.39 kristaps 759: pdf_obj(p, base + 1);
1.38 kristaps 760: ps_printf(p, "%zu\nendobj\n", len);
761:
762: /* Resource for content. */
1.39 kristaps 763: pdf_obj(p, base + 2);
1.38 kristaps 764: ps_printf(p, "<<\n/ProcSet [/PDF /Text]\n");
1.37 kristaps 765: ps_printf(p, "/Font <<\n");
1.59 schwarze 766: for (i = 0; i < (int)TERMFONT__MAX; i++)
1.37 kristaps 767: ps_printf(p, "/F%d %d 0 R\n", i, 3 + i);
1.38 kristaps 768: ps_printf(p, ">>\n>>\n");
769:
770: /* Page node. */
1.39 kristaps 771: pdf_obj(p, base + 3);
772: ps_printf(p, "<<\n");
1.37 kristaps 773: ps_printf(p, "/Type /Page\n");
774: ps_printf(p, "/Parent 2 0 R\n");
1.38 kristaps 775: ps_printf(p, "/Resources %zu 0 R\n", base + 2);
776: ps_printf(p, "/Contents %zu 0 R\n", base);
777: ps_printf(p, ">>\nendobj\n");
778: } else
779: ps_printf(p, "showpage\n");
1.37 kristaps 780:
1.50 kristaps 781: p->ps->pages++;
782: p->ps->psrow = p->ps->top;
783: assert( ! (PS_NEWPAGE & p->ps->flags));
784: p->ps->flags |= PS_NEWPAGE;
1.37 kristaps 785: }
786:
1.2 kristaps 787: static void
788: ps_end(struct termp *p)
789: {
1.38 kristaps 790: size_t i, xref, base;
1.2 kristaps 791:
1.4 kristaps 792: /*
793: * At the end of the file, do one last showpage. This is the
794: * same behaviour as groff(1) and works for multiple pages as
795: * well as just one.
796: */
797:
1.50 kristaps 798: if ( ! (PS_NEWPAGE & p->ps->flags)) {
799: assert(0 == p->ps->flags);
800: assert('\0' == p->ps->last);
1.37 kristaps 801: ps_closepage(p);
1.30 kristaps 802: }
1.16 kristaps 803:
1.37 kristaps 804: if (TERMTYPE_PS == p->type) {
805: ps_printf(p, "%%%%Trailer\n");
1.50 kristaps 806: ps_printf(p, "%%%%Pages: %zu\n", p->ps->pages);
1.37 kristaps 807: ps_printf(p, "%%%%EOF\n");
808: return;
1.59 schwarze 809: }
1.37 kristaps 810:
1.39 kristaps 811: pdf_obj(p, 2);
812: ps_printf(p, "<<\n/Type /Pages\n");
1.37 kristaps 813: ps_printf(p, "/MediaBox [0 0 %zu %zu]\n",
1.50 kristaps 814: (size_t)AFM2PNT(p, p->ps->width),
815: (size_t)AFM2PNT(p, p->ps->height));
1.37 kristaps 816:
1.50 kristaps 817: ps_printf(p, "/Count %zu\n", p->ps->pages);
1.37 kristaps 818: ps_printf(p, "/Kids [");
819:
1.50 kristaps 820: for (i = 0; i < p->ps->pages; i++)
1.59 schwarze 821: ps_printf(p, " %zu 0 R", i * 4 + p->ps->pdfbody + 3);
1.38 kristaps 822:
1.59 schwarze 823: base = (p->ps->pages - 1) * 4 + p->ps->pdfbody + 4;
1.38 kristaps 824:
825: ps_printf(p, "]\n>>\nendobj\n");
1.39 kristaps 826: pdf_obj(p, base);
1.37 kristaps 827: ps_printf(p, "<<\n");
828: ps_printf(p, "/Type /Catalog\n");
829: ps_printf(p, "/Pages 2 0 R\n");
830: ps_printf(p, ">>\n");
1.50 kristaps 831: xref = p->ps->pdfbytes;
1.37 kristaps 832: ps_printf(p, "xref\n");
1.38 kristaps 833: ps_printf(p, "0 %zu\n", base + 1);
1.39 kristaps 834: ps_printf(p, "0000000000 65535 f \n");
835:
836: for (i = 0; i < base; i++)
1.59 schwarze 837: ps_printf(p, "%.10zu 00000 n \n",
838: p->ps->pdfobjs[(int)i]);
1.39 kristaps 839:
1.37 kristaps 840: ps_printf(p, "trailer\n");
841: ps_printf(p, "<<\n");
1.38 kristaps 842: ps_printf(p, "/Size %zu\n", base + 1);
843: ps_printf(p, "/Root %zu 0 R\n", base);
1.37 kristaps 844: ps_printf(p, "/Info 1 0 R\n");
845: ps_printf(p, ">>\n");
846: ps_printf(p, "startxref\n");
847: ps_printf(p, "%zu\n", xref);
848: ps_printf(p, "%%%%EOF\n");
1.2 kristaps 849: }
850:
851: static void
852: ps_begin(struct termp *p)
853: {
1.16 kristaps 854: int i;
1.2 kristaps 855:
1.59 schwarze 856: /*
1.9 kristaps 857: * Print margins into margin buffer. Nothing gets output to the
858: * screen yet, so we don't need to initialise the primary state.
1.2 kristaps 859: */
860:
1.50 kristaps 861: if (p->ps->psmarg) {
862: assert(p->ps->psmargsz);
863: p->ps->psmarg[0] = '\0';
1.4 kristaps 864: }
865:
1.50 kristaps 866: /*p->ps->pdfbytes = 0;*/
867: p->ps->psmargcur = 0;
868: p->ps->flags = PS_MARGINS;
869: p->ps->pscol = p->ps->left;
870: p->ps->psrow = p->ps->header;
1.4 kristaps 871:
1.9 kristaps 872: ps_setfont(p, TERMFONT_NONE);
1.4 kristaps 873:
874: (*p->headf)(p, p->argf);
875: (*p->endline)(p);
876:
1.50 kristaps 877: p->ps->pscol = p->ps->left;
878: p->ps->psrow = p->ps->footer;
1.4 kristaps 879:
880: (*p->footf)(p, p->argf);
881: (*p->endline)(p);
882:
1.50 kristaps 883: p->ps->flags &= ~PS_MARGINS;
1.9 kristaps 884:
1.50 kristaps 885: assert(0 == p->ps->flags);
886: assert(p->ps->psmarg);
887: assert('\0' != p->ps->psmarg[0]);
1.9 kristaps 888:
1.59 schwarze 889: /*
1.9 kristaps 890: * Print header and initialise page state. Following this,
891: * stuff gets printed to the screen, so make sure we're sane.
892: */
1.4 kristaps 893:
1.37 kristaps 894: if (TERMTYPE_PS == p->type) {
895: ps_printf(p, "%%!PS-Adobe-3.0\n");
896: ps_printf(p, "%%%%DocumentData: Clean7Bit\n");
897: ps_printf(p, "%%%%Orientation: Portrait\n");
898: ps_printf(p, "%%%%Pages: (atend)\n");
899: ps_printf(p, "%%%%PageOrder: Ascend\n");
900: ps_printf(p, "%%%%DocumentMedia: "
1.59 schwarze 901: "Default %zu %zu 0 () ()\n",
902: (size_t)AFM2PNT(p, p->ps->width),
903: (size_t)AFM2PNT(p, p->ps->height));
1.37 kristaps 904: ps_printf(p, "%%%%DocumentNeededResources: font");
905:
906: for (i = 0; i < (int)TERMFONT__MAX; i++)
907: ps_printf(p, " %s", fonts[i].name);
908:
909: ps_printf(p, "\n%%%%EndComments\n");
910: } else {
911: ps_printf(p, "%%PDF-1.1\n");
1.39 kristaps 912: pdf_obj(p, 1);
1.37 kristaps 913: ps_printf(p, "<<\n");
914: ps_printf(p, ">>\n");
915: ps_printf(p, "endobj\n");
916:
917: for (i = 0; i < (int)TERMFONT__MAX; i++) {
1.39 kristaps 918: pdf_obj(p, (size_t)i + 3);
1.37 kristaps 919: ps_printf(p, "<<\n");
920: ps_printf(p, "/Type /Font\n");
921: ps_printf(p, "/Subtype /Type1\n");
1.55 joerg 922: ps_printf(p, "/Name /F%d\n", i);
1.37 kristaps 923: ps_printf(p, "/BaseFont /%s\n", fonts[i].name);
924: ps_printf(p, ">>\n");
925: }
926: }
1.16 kristaps 927:
1.50 kristaps 928: p->ps->pdfbody = (size_t)TERMFONT__MAX + 3;
929: p->ps->pscol = p->ps->left;
930: p->ps->psrow = p->ps->top;
931: p->ps->flags |= PS_NEWPAGE;
1.33 kristaps 932: ps_setfont(p, TERMFONT_NONE);
1.2 kristaps 933: }
934:
935: static void
1.13 kristaps 936: ps_pletter(struct termp *p, int c)
1.2 kristaps 937: {
1.14 kristaps 938: int f;
1.32 kristaps 939:
1.9 kristaps 940: /*
1.32 kristaps 941: * If we haven't opened a page context, then output that we're
942: * in a new page and make sure the font is correctly set.
1.9 kristaps 943: */
944:
1.50 kristaps 945: if (PS_NEWPAGE & p->ps->flags) {
1.37 kristaps 946: if (TERMTYPE_PS == p->type) {
1.59 schwarze 947: ps_printf(p, "%%%%Page: %zu %zu\n",
948: p->ps->pages + 1, p->ps->pages + 1);
949: ps_printf(p, "/%s %zu selectfont\n",
950: fonts[(int)p->ps->lastf].name,
951: p->ps->scale);
1.37 kristaps 952: } else {
1.59 schwarze 953: pdf_obj(p, p->ps->pdfbody +
954: p->ps->pages * 4);
1.37 kristaps 955: ps_printf(p, "<<\n");
1.59 schwarze 956: ps_printf(p, "/Length %zu 0 R\n",
957: p->ps->pdfbody + 1 + p->ps->pages * 4);
1.37 kristaps 958: ps_printf(p, ">>\nstream\n");
959: }
1.50 kristaps 960: p->ps->pdflastpg = p->ps->pdfbytes;
961: p->ps->flags &= ~PS_NEWPAGE;
1.32 kristaps 962: }
1.59 schwarze 963:
1.32 kristaps 964: /*
965: * If we're not in a PostScript "word" context, then open one
966: * now at the current cursor.
967: */
1.30 kristaps 968:
1.50 kristaps 969: if ( ! (PS_INLINE & p->ps->flags)) {
1.37 kristaps 970: if (TERMTYPE_PS != p->type) {
1.59 schwarze 971: ps_printf(p, "BT\n/F%d %zu Tf\n",
972: (int)p->ps->lastf, p->ps->scale);
1.37 kristaps 973: ps_printf(p, "%.3f %.3f Td\n(",
1.59 schwarze 974: AFM2PNT(p, p->ps->pscol),
975: AFM2PNT(p, p->ps->psrow));
1.37 kristaps 976: } else
1.59 schwarze 977: ps_printf(p, "%.3f %.3f moveto\n(",
978: AFM2PNT(p, p->ps->pscol),
979: AFM2PNT(p, p->ps->psrow));
1.50 kristaps 980: p->ps->flags |= PS_INLINE;
1.2 kristaps 981: }
982:
1.50 kristaps 983: assert( ! (PS_NEWPAGE & p->ps->flags));
1.29 kristaps 984:
1.2 kristaps 985: /*
986: * We need to escape these characters as per the PostScript
987: * specification. We would also escape non-graphable characters
988: * (like tabs), but none of them would get to this point and
989: * it's superfluous to abort() on them.
990: */
991:
992: switch (c) {
1.59 schwarze 993: case '(':
1.2 kristaps 994: /* FALLTHROUGH */
1.59 schwarze 995: case ')':
1.2 kristaps 996: /* FALLTHROUGH */
1.59 schwarze 997: case '\\':
1.4 kristaps 998: ps_putchar(p, '\\');
1.2 kristaps 999: break;
1000: default:
1001: break;
1002: }
1003:
1004: /* Write the character and adjust where we are on the page. */
1.9 kristaps 1005:
1.50 kristaps 1006: f = (int)p->ps->lastf;
1.13 kristaps 1007:
1.61 schwarze 1008: if (c <= 32 || c - 32 >= MAXCHAR)
1009: c = 32;
1.13 kristaps 1010:
1.25 kristaps 1011: ps_putchar(p, (char)c);
1.14 kristaps 1012: c -= 32;
1.50 kristaps 1013: p->ps->pscol += (size_t)fonts[f].gly[c].wx;
1.2 kristaps 1014: }
1015:
1016: static void
1.9 kristaps 1017: ps_pclose(struct termp *p)
1018: {
1019:
1.59 schwarze 1020: /*
1.9 kristaps 1021: * Spit out that we're exiting a word context (this is a
1022: * "partial close" because we don't check the last-char buffer
1023: * or anything).
1024: */
1025:
1.50 kristaps 1026: if ( ! (PS_INLINE & p->ps->flags))
1.9 kristaps 1027: return;
1.59 schwarze 1028:
1.37 kristaps 1029: if (TERMTYPE_PS != p->type) {
1030: ps_printf(p, ") Tj\nET\n");
1031: } else
1032: ps_printf(p, ") show\n");
1033:
1.50 kristaps 1034: p->ps->flags &= ~PS_INLINE;
1.9 kristaps 1035: }
1036:
1037: static void
1038: ps_fclose(struct termp *p)
1039: {
1040:
1041: /*
1042: * Strong closure: if we have a last-char, spit it out after
1043: * checking that we're in the right font mode. This will of
1044: * course open a new scope, if applicable.
1045: *
1046: * Following this, close out any scope that's open.
1047: */
1048:
1.65 schwarze 1049: if (p->ps->last != '\0') {
1050: assert(p->ps->last != 8);
1051: if (p->ps->nextf != p->ps->lastf) {
1.9 kristaps 1052: ps_pclose(p);
1.65 schwarze 1053: ps_setfont(p, p->ps->nextf);
1.9 kristaps 1054: }
1.65 schwarze 1055: p->ps->nextf = TERMFONT_NONE;
1.50 kristaps 1056: ps_pletter(p, p->ps->last);
1057: p->ps->last = '\0';
1.9 kristaps 1058: }
1059:
1.50 kristaps 1060: if ( ! (PS_INLINE & p->ps->flags))
1.9 kristaps 1061: return;
1062:
1063: ps_pclose(p);
1064: }
1065:
1066: static void
1.49 kristaps 1067: ps_letter(struct termp *p, int arg)
1.8 kristaps 1068: {
1.65 schwarze 1069: char c;
1.49 kristaps 1070:
1071: c = arg >= 128 || arg <= 0 ? '?' : arg;
1.9 kristaps 1072:
1073: /*
1.65 schwarze 1074: * When receiving an initial character, merely buffer it,
1075: * because a backspace might follow to specify formatting.
1076: * When receiving a backspace, use the buffered character
1077: * to build the font instruction and clear the buffer.
1078: * Only when there are two non-backspace characters in a row,
1079: * activate the font built so far and print the first of them;
1080: * the second, again, merely gets buffered.
1081: * The final character will get printed from ps_fclose().
1.9 kristaps 1082: */
1083:
1.65 schwarze 1084: if (c == 8) {
1085: assert(p->ps->last != '\0');
1086: assert(p->ps->last != 8);
1.50 kristaps 1087: if ('_' == p->ps->last) {
1.65 schwarze 1088: switch (p->ps->nextf) {
1089: case TERMFONT_BI:
1090: break;
1091: case TERMFONT_BOLD:
1092: p->ps->nextf = TERMFONT_BI;
1093: break;
1094: default:
1095: p->ps->nextf = TERMFONT_UNDER;
1096: }
1097: } else {
1098: switch (p->ps->nextf) {
1099: case TERMFONT_BI:
1100: break;
1101: case TERMFONT_UNDER:
1102: p->ps->nextf = TERMFONT_BI;
1103: break;
1104: default:
1105: p->ps->nextf = TERMFONT_BOLD;
1.9 kristaps 1106: }
1107: }
1.65 schwarze 1108: } else if (p->ps->last != '\0' && p->ps->last != 8) {
1109: if (p->ps->nextf != p->ps->lastf) {
1.9 kristaps 1110: ps_pclose(p);
1.65 schwarze 1111: ps_setfont(p, p->ps->nextf);
1.9 kristaps 1112: }
1.65 schwarze 1113: p->ps->nextf = TERMFONT_NONE;
1114: ps_pletter(p, p->ps->last);
1.8 kristaps 1115: }
1.65 schwarze 1116: p->ps->last = c;
1.8 kristaps 1117: }
1118:
1119: static void
1.2 kristaps 1120: ps_advance(struct termp *p, size_t len)
1121: {
1122:
1.9 kristaps 1123: /*
1124: * Advance some spaces. This can probably be made smarter,
1125: * i.e., to have multiple space-separated words in the same
1126: * scope, but this is easier: just close out the current scope
1127: * and readjust our column settings.
1128: */
1.8 kristaps 1129:
1.9 kristaps 1130: ps_fclose(p);
1.50 kristaps 1131: p->ps->pscol += len;
1.2 kristaps 1132: }
1133:
1134: static void
1135: ps_endline(struct termp *p)
1136: {
1.8 kristaps 1137:
1.9 kristaps 1138: /* Close out any scopes we have open: we're at eoln. */
1139:
1140: ps_fclose(p);
1.2 kristaps 1141:
1.9 kristaps 1142: /*
1143: * If we're in the margin, don't try to recalculate our current
1144: * row. XXX: if the column tries to be fancy with multiple
1.59 schwarze 1145: * lines, we'll do nasty stuff.
1.9 kristaps 1146: */
1.2 kristaps 1147:
1.50 kristaps 1148: if (PS_MARGINS & p->ps->flags)
1.29 kristaps 1149: return;
1150:
1151: /* Left-justify. */
1152:
1.50 kristaps 1153: p->ps->pscol = p->ps->left;
1.29 kristaps 1154:
1155: /* If we haven't printed anything, return. */
1156:
1.50 kristaps 1157: if (PS_NEWPAGE & p->ps->flags)
1.2 kristaps 1158: return;
1159:
1.9 kristaps 1160: /*
1161: * Put us down a line. If we're at the page bottom, spit out a
1162: * showpage and restart our row.
1163: */
1164:
1.59 schwarze 1165: if (p->ps->psrow >= p->ps->lineheight + p->ps->bottom) {
1.50 kristaps 1166: p->ps->psrow -= p->ps->lineheight;
1.2 kristaps 1167: return;
1168: }
1169:
1.37 kristaps 1170: ps_closepage(p);
1.1 kristaps 1171: }
1.9 kristaps 1172:
1173: static void
1174: ps_setfont(struct termp *p, enum termfont f)
1175: {
1176:
1.16 kristaps 1177: assert(f < TERMFONT__MAX);
1.50 kristaps 1178: p->ps->lastf = f;
1.59 schwarze 1179:
1.32 kristaps 1180: /*
1181: * If we're still at the top of the page, let the font-setting
1182: * be delayed until we actually have stuff to print.
1183: */
1184:
1.50 kristaps 1185: if (PS_NEWPAGE & p->ps->flags)
1.32 kristaps 1186: return;
1187:
1.37 kristaps 1188: if (TERMTYPE_PS == p->type)
1.59 schwarze 1189: ps_printf(p, "/%s %zu selectfont\n",
1190: fonts[(int)f].name, p->ps->scale);
1.37 kristaps 1191: else
1.59 schwarze 1192: ps_printf(p, "/F%d %zu Tf\n",
1193: (int)f, p->ps->scale);
1.9 kristaps 1194: }
1195:
1.11 kristaps 1196: static size_t
1.49 kristaps 1197: ps_width(const struct termp *p, int c)
1.11 kristaps 1198: {
1199:
1.14 kristaps 1200: if (c <= 32 || c - 32 >= MAXCHAR)
1.61 schwarze 1201: c = 0;
1202: else
1203: c -= 32;
1.14 kristaps 1204:
1.49 kristaps 1205: return((size_t)fonts[(int)TERMFONT_NONE].gly[c].wx);
1.11 kristaps 1206: }
1.19 kristaps 1207:
1.20 kristaps 1208: static double
1.19 kristaps 1209: ps_hspan(const struct termp *p, const struct roffsu *su)
1210: {
1211: double r;
1.59 schwarze 1212:
1.19 kristaps 1213: /*
1214: * All of these measurements are derived by converting from the
1.21 kristaps 1215: * native measurement to AFM units.
1.19 kristaps 1216: */
1217: switch (su->unit) {
1.64 kristaps 1218: case SCALE_BU:
1219: /*
1220: * Traditionally, the default unit is fixed to the
1221: * output media. So this would refer to the point. In
1222: * mandoc(1), however, we stick to the default terminal
1223: * scaling unit so that output is the same regardless
1224: * the media.
1225: */
1226: r = PNT2AFM(p, su->scale * 72.0 / 240.0);
1227: break;
1.59 schwarze 1228: case SCALE_CM:
1.64 kristaps 1229: r = PNT2AFM(p, su->scale * 72.0 / 2.54);
1230: break;
1231: case SCALE_EM:
1232: r = su->scale *
1233: fonts[(int)TERMFONT_NONE].gly[109 - 32].wx;
1234: break;
1235: case SCALE_EN:
1236: r = su->scale *
1237: fonts[(int)TERMFONT_NONE].gly[110 - 32].wx;
1.19 kristaps 1238: break;
1.59 schwarze 1239: case SCALE_IN:
1.62 schwarze 1240: r = PNT2AFM(p, su->scale * 72.0);
1.19 kristaps 1241: break;
1.64 kristaps 1242: case SCALE_MM:
1243: r = su->scale *
1244: fonts[(int)TERMFONT_NONE].gly[109 - 32].wx / 100.0;
1245: break;
1.59 schwarze 1246: case SCALE_PC:
1.62 schwarze 1247: r = PNT2AFM(p, su->scale * 12.0);
1.19 kristaps 1248: break;
1.59 schwarze 1249: case SCALE_PT:
1.64 kristaps 1250: r = PNT2AFM(p, su->scale * 1.0);
1.19 kristaps 1251: break;
1.59 schwarze 1252: case SCALE_VS:
1.50 kristaps 1253: r = su->scale * p->ps->lineheight;
1.19 kristaps 1254: break;
1255: default:
1256: r = su->scale;
1257: break;
1258: }
1259:
1.20 kristaps 1260: return(r);
1.50 kristaps 1261: }
1262:
1263: static void
1264: ps_growbuf(struct termp *p, size_t sz)
1265: {
1266: if (p->ps->psmargcur + sz <= p->ps->psmargsz)
1267: return;
1268:
1269: if (sz < PS_BUFSLOP)
1270: sz = PS_BUFSLOP;
1271:
1272: p->ps->psmargsz += sz;
1.60 schwarze 1273: p->ps->psmarg = mandoc_realloc(p->ps->psmarg, p->ps->psmargsz);
1.19 kristaps 1274: }
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