-/* $Id: term_ps.c,v 1.26 2010/07/02 10:53:28 kristaps Exp $ */
+/* $Id: term_ps.c,v 1.41 2010/08/06 16:07:35 kristaps Exp $ */
/*
- * Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@bsd.lv>
+ * Copyright (c) 2010 Kristaps Dzonsons <kristaps@bsd.lv>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
/* Convert an AFM unit "x" to a PostScript points */
#define AFM2PNT(p, x) /* LINTED */ \
- (size_t)((double)(x) / (1000.0 / (double)(p)->engine.ps.scale))
+ ((double)(x) / (1000.0 / (double)(p)->engine.ps.scale))
struct glyph {
- size_t wx; /* WX in AFM */
+ unsigned short wx; /* WX in AFM */
};
struct font {
/* These work the buffer used by the header and footer. */
#define PS_BUFSLOP 128
-#define PS_GROWBUF(p, sz) \
- do if ((p)->engine.ps.psmargcur + (sz) > \
- (p)->engine.ps.psmargsz) { \
- (p)->engine.ps.psmargsz += /* CONSTCOND */ \
- MAX(PS_BUFSLOP, (sz)); \
- (p)->engine.ps.psmarg = realloc \
- ((p)->engine.ps.psmarg, \
- (p)->engine.ps.psmargsz); \
- if (NULL == (p)->engine.ps.psmarg) { \
- perror(NULL); \
- exit(EXIT_FAILURE); \
- } \
- } while (/* CONSTCOND */ 0)
+static void
+ps_growbuf(struct termp *p, size_t sz)
+{
+ if (p->engine.ps.psmargcur + sz <= p->engine.ps.psmargsz)
+ return;
+
+ if (sz < PS_BUFSLOP)
+ sz = PS_BUFSLOP;
+
+ p->engine.ps.psmargsz += sz;
+
+ p->engine.ps.psmarg = realloc
+ (p->engine.ps.psmarg,
+ p->engine.ps.psmargsz);
+
+ if (NULL == p->engine.ps.psmarg) {
+ perror(NULL);
+ exit(EXIT_FAILURE);
+ }
+}
static double ps_hspan(const struct termp *,
const struct roffsu *);
static size_t ps_width(const struct termp *, char);
static void ps_advance(struct termp *, size_t);
static void ps_begin(struct termp *);
+static void ps_closepage(struct termp *);
static void ps_end(struct termp *);
static void ps_endline(struct termp *);
static void ps_fclose(struct termp *);
static void ps_printf(struct termp *, const char *, ...);
static void ps_putchar(struct termp *, char);
static void ps_setfont(struct termp *, enum termfont);
+static struct termp *pspdf_alloc(char *);
+static void pdf_obj(struct termp *, size_t);
+
+
+void *
+pdf_alloc(char *outopts)
+{
+ struct termp *p;
+
+ if (NULL != (p = pspdf_alloc(outopts)))
+ p->type = TERMTYPE_PDF;
+
+ return(p);
+}
void *
ps_alloc(char *outopts)
{
struct termp *p;
- size_t pagex, pagey, margin, lineheight;
+
+ if (NULL != (p = pspdf_alloc(outopts)))
+ p->type = TERMTYPE_PS;
+
+ return(p);
+}
+
+
+static struct termp *
+pspdf_alloc(char *outopts)
+{
+ struct termp *p;
+ size_t pagex, pagey, marginx, marginy, lineheight;
const char *toks[2];
const char *pp;
char *v;
p->endline = ps_endline;
p->hspan = ps_hspan;
p->letter = ps_letter;
- p->type = TERMTYPE_PS;
p->width = ps_width;
- p->engine.ps.scale = 11;
-
toks[0] = "paper";
toks[1] = NULL;
break;
}
- margin = PNT2AFM(p, 72);
- lineheight = PNT2AFM(p, 12);
-
/* Default to US letter (millimetres). */
pagex = 216;
pagey = 356;
} else if (2 != sscanf(pp, "%zux%zu", &pagex, &pagey))
fprintf(stderr, "%s: Unknown paper\n", pp);
- }
+ } else if (NULL == pp)
+ pp = "letter";
+
+ /*
+ * This MUST be defined before any PNT2AFM or AFM2PNT
+ * calculations occur.
+ */
+
+ p->engine.ps.scale = 11;
/* Remember millimetres -> AFM units. */
pagex = PNT2AFM(p, ((double)pagex * 2.834));
pagey = PNT2AFM(p, ((double)pagey * 2.834));
- assert(margin * 2 < pagex);
- assert(margin * 2 < pagey);
+ /* Margins are 1/9 the page x and y. */
+
+ marginx = /* LINTED */
+ (size_t)((double)pagex / 9.0);
+ marginy = /* LINTED */
+ (size_t)((double)pagey / 9.0);
+
+ /* Line-height is 1.4em. */
+
+ lineheight = PNT2AFM(p, ((double)p->engine.ps.scale * 1.4));
p->engine.ps.width = pagex;
p->engine.ps.height = pagey;
- p->engine.ps.header = pagey - (margin / 2);
- p->engine.ps.top = pagey - margin;
- p->engine.ps.footer = (margin / 2);
- p->engine.ps.bottom = margin;
- p->engine.ps.left = margin;
+ p->engine.ps.header = pagey - (marginy / 2) - (lineheight / 2);
+ p->engine.ps.top = pagey - marginy;
+ p->engine.ps.footer = (marginy / 2) - (lineheight / 2);
+ p->engine.ps.bottom = marginy;
+ p->engine.ps.left = marginx;
p->engine.ps.lineheight = lineheight;
- p->defrmargin = pagex - (margin * 2);
+ p->defrmargin = pagex - (marginx * 2);
return(p);
}
void
-ps_free(void *arg)
+pspdf_free(void *arg)
{
struct termp *p;
if (p->engine.ps.psmarg)
free(p->engine.ps.psmarg);
+ if (p->engine.ps.pdfobjs)
+ free(p->engine.ps.pdfobjs);
term_free(p);
}
ps_printf(struct termp *p, const char *fmt, ...)
{
va_list ap;
- int pos;
+ int pos, len;
va_start(ap, fmt);
* into our growable margin buffer.
*/
- if ( ! (PS_MARGINS & p->engine.ps.psstate)) {
- vprintf(fmt, ap);
+ if ( ! (PS_MARGINS & p->engine.ps.flags)) {
+ len = vprintf(fmt, ap);
va_end(ap);
+ p->engine.ps.pdfbytes += /* LINTED */
+ len < 0 ? 0 : (size_t)len;
return;
}
* assumption that will cause pukeage if it's not the case.
*/
- PS_GROWBUF(p, PS_BUFSLOP);
+ ps_growbuf(p, PS_BUFSLOP);
pos = (int)p->engine.ps.psmargcur;
- vsnprintf(&p->engine.ps.psmarg[pos], PS_BUFSLOP, fmt, ap);
- p->engine.ps.psmargcur = strlen(p->engine.ps.psmarg);
+ len = vsnprintf(&p->engine.ps.psmarg[pos], PS_BUFSLOP, fmt, ap);
va_end(ap);
+
+ p->engine.ps.psmargcur = strlen(p->engine.ps.psmarg);
}
/* See ps_printf(). */
- if ( ! (PS_MARGINS & p->engine.ps.psstate)) {
+ if ( ! (PS_MARGINS & p->engine.ps.flags)) {
putchar(c);
+ p->engine.ps.pdfbytes++;
return;
}
- PS_GROWBUF(p, 2);
+ ps_growbuf(p, 2);
pos = (int)p->engine.ps.psmargcur++;
p->engine.ps.psmarg[pos++] = c;
}
+static void
+pdf_obj(struct termp *p, size_t obj)
+{
+
+ assert(obj > 0);
+
+ if ((obj - 1) >= p->engine.ps.pdfobjsz) {
+ p->engine.ps.pdfobjsz = obj + 128;
+ p->engine.ps.pdfobjs = realloc
+ (p->engine.ps.pdfobjs,
+ p->engine.ps.pdfobjsz * sizeof(size_t));
+ if (NULL == p->engine.ps.pdfobjs) {
+ perror(NULL);
+ exit(EXIT_FAILURE);
+ }
+ }
+
+ p->engine.ps.pdfobjs[(int)obj - 1] = p->engine.ps.pdfbytes;
+ ps_printf(p, "%zu 0 obj\n", obj);
+}
+
+
+static void
+ps_closepage(struct termp *p)
+{
+ int i;
+ size_t len, base;
+
+ /*
+ * Close out a page that we've already flushed to output. In
+ * PostScript, we simply note that the page must be showed. In
+ * PDF, we must now create the Length, Resource, and Page node
+ * for the page contents.
+ */
+
+ assert(p->engine.ps.psmarg && p->engine.ps.psmarg[0]);
+ ps_printf(p, "%s", p->engine.ps.psmarg);
+
+ if (TERMTYPE_PS != p->type) {
+ ps_printf(p, "ET\n");
+
+ len = p->engine.ps.pdfbytes - p->engine.ps.pdflastpg;
+ base = p->engine.ps.pages * 4 + p->engine.ps.pdfbody;
+
+ ps_printf(p, "endstream\nendobj\n");
+
+ /* Length of content. */
+ pdf_obj(p, base + 1);
+ ps_printf(p, "%zu\nendobj\n", len);
+
+ /* Resource for content. */
+ pdf_obj(p, base + 2);
+ ps_printf(p, "<<\n/ProcSet [/PDF /Text]\n");
+ ps_printf(p, "/Font <<\n");
+ for (i = 0; i < (int)TERMFONT__MAX; i++)
+ ps_printf(p, "/F%d %d 0 R\n", i, 3 + i);
+ ps_printf(p, ">>\n>>\n");
+
+ /* Page node. */
+ pdf_obj(p, base + 3);
+ ps_printf(p, "<<\n");
+ ps_printf(p, "/Type /Page\n");
+ ps_printf(p, "/Parent 2 0 R\n");
+ ps_printf(p, "/Resources %zu 0 R\n", base + 2);
+ ps_printf(p, "/Contents %zu 0 R\n", base);
+ ps_printf(p, ">>\nendobj\n");
+ } else
+ ps_printf(p, "showpage\n");
+
+ p->engine.ps.pages++;
+ p->engine.ps.psrow = p->engine.ps.top;
+ assert( ! (PS_NEWPAGE & p->engine.ps.flags));
+ p->engine.ps.flags |= PS_NEWPAGE;
+}
+
+
/* ARGSUSED */
static void
ps_end(struct termp *p)
{
+ size_t i, xref, base;
/*
* At the end of the file, do one last showpage. This is the
* well as just one.
*/
- assert(0 == p->engine.ps.psstate);
- assert('\0' == p->engine.ps.last);
- assert(p->engine.ps.psmarg && p->engine.ps.psmarg[0]);
- printf("%s", p->engine.ps.psmarg);
- p->engine.ps.pages++;
- printf("showpage\n");
+ if ( ! (PS_NEWPAGE & p->engine.ps.flags)) {
+ assert(0 == p->engine.ps.flags);
+ assert('\0' == p->engine.ps.last);
+ ps_closepage(p);
+ }
+
+ if (TERMTYPE_PS == p->type) {
+ ps_printf(p, "%%%%Trailer\n");
+ ps_printf(p, "%%%%Pages: %zu\n", p->engine.ps.pages);
+ ps_printf(p, "%%%%EOF\n");
+ return;
+ }
- printf("%%%%Trailer\n");
- printf("%%%%Pages: %zu\n", p->engine.ps.pages);
- printf("%%%%EOF\n");
+ pdf_obj(p, 2);
+ ps_printf(p, "<<\n/Type /Pages\n");
+ ps_printf(p, "/MediaBox [0 0 %zu %zu]\n",
+ (size_t)AFM2PNT(p, p->engine.ps.width),
+ (size_t)AFM2PNT(p, p->engine.ps.height));
+
+ ps_printf(p, "/Count %zu\n", p->engine.ps.pages);
+ ps_printf(p, "/Kids [");
+
+ for (i = 0; i < p->engine.ps.pages; i++)
+ ps_printf(p, " %zu 0 R", i * 4 +
+ p->engine.ps.pdfbody + 3);
+
+ base = (p->engine.ps.pages - 1) * 4 +
+ p->engine.ps.pdfbody + 4;
+
+ ps_printf(p, "]\n>>\nendobj\n");
+ pdf_obj(p, base);
+ ps_printf(p, "<<\n");
+ ps_printf(p, "/Type /Catalog\n");
+ ps_printf(p, "/Pages 2 0 R\n");
+ ps_printf(p, ">>\n");
+ xref = p->engine.ps.pdfbytes;
+ ps_printf(p, "xref\n");
+ ps_printf(p, "0 %zu\n", base + 1);
+ ps_printf(p, "0000000000 65535 f \n");
+
+ for (i = 0; i < base; i++)
+ ps_printf(p, "%.10zu 00000 n \n",
+ p->engine.ps.pdfobjs[(int)i]);
+
+ ps_printf(p, "trailer\n");
+ ps_printf(p, "<<\n");
+ ps_printf(p, "/Size %zu\n", base + 1);
+ ps_printf(p, "/Root %zu 0 R\n", base);
+ ps_printf(p, "/Info 1 0 R\n");
+ ps_printf(p, ">>\n");
+ ps_printf(p, "startxref\n");
+ ps_printf(p, "%zu\n", xref);
+ ps_printf(p, "%%%%EOF\n");
}
p->engine.ps.psmarg[0] = '\0';
}
+ /*p->engine.ps.pdfbytes = 0;*/
p->engine.ps.psmargcur = 0;
- p->engine.ps.psstate = PS_MARGINS;
+ p->engine.ps.flags = PS_MARGINS;
p->engine.ps.pscol = p->engine.ps.left;
p->engine.ps.psrow = p->engine.ps.header;
(*p->footf)(p, p->argf);
(*p->endline)(p);
- p->engine.ps.psstate &= ~PS_MARGINS;
+ p->engine.ps.flags &= ~PS_MARGINS;
- assert(0 == p->engine.ps.psstate);
+ assert(0 == p->engine.ps.flags);
assert(p->engine.ps.psmarg);
assert('\0' != p->engine.ps.psmarg[0]);
t = time(NULL);
- printf("%%!PS-Adobe-3.0\n");
- printf("%%%%Creator: mandoc-%s\n", VERSION);
- printf("%%%%CreationDate: %s", ctime(&t));
- printf("%%%%DocumentData: Clean7Bit\n");
- printf("%%%%Orientation: Portrait\n");
- printf("%%%%Pages: (atend)\n");
- printf("%%%%PageOrder: Ascend\n");
- printf("%%%%DocumentMedia: Default %zu %zu 0 () ()\n",
- AFM2PNT(p, p->engine.ps.width),
- AFM2PNT(p, p->engine.ps.height));
- printf("%%%%DocumentNeededResources: font");
- for (i = 0; i < (int)TERMFONT__MAX; i++)
- printf(" %s", fonts[i].name);
- printf("\n%%%%EndComments\n");
-
- printf("%%%%Page: %zu %zu\n",
- p->engine.ps.pages + 1,
- p->engine.ps.pages + 1);
+ if (TERMTYPE_PS == p->type) {
+ ps_printf(p, "%%!PS-Adobe-3.0\n");
+ ps_printf(p, "%%%%Creator: mandoc-%s\n", VERSION);
+ ps_printf(p, "%%%%CreationDate: %s", ctime(&t));
+ ps_printf(p, "%%%%DocumentData: Clean7Bit\n");
+ ps_printf(p, "%%%%Orientation: Portrait\n");
+ ps_printf(p, "%%%%Pages: (atend)\n");
+ ps_printf(p, "%%%%PageOrder: Ascend\n");
+ ps_printf(p, "%%%%DocumentMedia: "
+ "Default %zu %zu 0 () ()\n",
+ (size_t)AFM2PNT(p, p->engine.ps.width),
+ (size_t)AFM2PNT(p, p->engine.ps.height));
+ ps_printf(p, "%%%%DocumentNeededResources: font");
+
+ for (i = 0; i < (int)TERMFONT__MAX; i++)
+ ps_printf(p, " %s", fonts[i].name);
+
+ ps_printf(p, "\n%%%%EndComments\n");
+ } else {
+ ps_printf(p, "%%PDF-1.1\n");
+ pdf_obj(p, 1);
+ ps_printf(p, "<<\n");
+ ps_printf(p, "/Creator mandoc-%s\n", VERSION);
+ ps_printf(p, ">>\n");
+ ps_printf(p, "endobj\n");
+
+ for (i = 0; i < (int)TERMFONT__MAX; i++) {
+ pdf_obj(p, (size_t)i + 3);
+ ps_printf(p, "<<\n");
+ ps_printf(p, "/Type /Font\n");
+ ps_printf(p, "/Subtype /Type1\n");
+ ps_printf(p, "/Name /F%zu\n", i);
+ ps_printf(p, "/BaseFont /%s\n", fonts[i].name);
+ ps_printf(p, ">>\n");
+ }
+ }
- ps_setfont(p, TERMFONT_NONE);
+ p->engine.ps.pdfbody = (size_t)TERMFONT__MAX + 3;
p->engine.ps.pscol = p->engine.ps.left;
p->engine.ps.psrow = p->engine.ps.top;
+ p->engine.ps.flags |= PS_NEWPAGE;
+ ps_setfont(p, TERMFONT_NONE);
}
ps_pletter(struct termp *p, int c)
{
int f;
+
+ /*
+ * If we haven't opened a page context, then output that we're
+ * in a new page and make sure the font is correctly set.
+ */
+
+ if (PS_NEWPAGE & p->engine.ps.flags) {
+ if (TERMTYPE_PS == p->type) {
+ ps_printf(p, "%%%%Page: %zu %zu\n",
+ p->engine.ps.pages + 1,
+ p->engine.ps.pages + 1);
+ ps_printf(p, "/%s %zu selectfont\n",
+ fonts[(int)p->engine.ps.lastf].name,
+ p->engine.ps.scale);
+ } else {
+ pdf_obj(p, p->engine.ps.pdfbody +
+ p->engine.ps.pages * 4);
+ ps_printf(p, "<<\n");
+ ps_printf(p, "/Length %zu 0 R\n",
+ p->engine.ps.pdfbody + 1 +
+ p->engine.ps.pages * 4);
+ ps_printf(p, ">>\nstream\n");
+ }
+ p->engine.ps.pdflastpg = p->engine.ps.pdfbytes;
+ p->engine.ps.flags &= ~PS_NEWPAGE;
+ }
/*
* If we're not in a PostScript "word" context, then open one
* now at the current cursor.
*/
- if ( ! (PS_INLINE & p->engine.ps.psstate)) {
- ps_printf(p, "%zu %zu moveto\n(",
- AFM2PNT(p, p->engine.ps.pscol),
- AFM2PNT(p, p->engine.ps.psrow));
- p->engine.ps.psstate |= PS_INLINE;
+ if ( ! (PS_INLINE & p->engine.ps.flags)) {
+ if (TERMTYPE_PS != p->type) {
+ ps_printf(p, "BT\n/F%d %zu Tf\n",
+ (int)p->engine.ps.lastf,
+ p->engine.ps.scale);
+ ps_printf(p, "%.3f %.3f Td\n(",
+ AFM2PNT(p, p->engine.ps.pscol),
+ AFM2PNT(p, p->engine.ps.psrow));
+ } else
+ ps_printf(p, "%.3f %.3f moveto\n(",
+ AFM2PNT(p, p->engine.ps.pscol),
+ AFM2PNT(p, p->engine.ps.psrow));
+ p->engine.ps.flags |= PS_INLINE;
}
+ assert( ! (PS_NEWPAGE & p->engine.ps.flags));
+
/*
* We need to escape these characters as per the PostScript
* specification. We would also escape non-graphable characters
if (c <= 32 || (c - 32 > MAXCHAR)) {
ps_putchar(p, ' ');
- p->engine.ps.pscol += fonts[f].gly[0].wx;
+ p->engine.ps.pscol += (size_t)fonts[f].gly[0].wx;
return;
}
ps_putchar(p, (char)c);
c -= 32;
- p->engine.ps.pscol += fonts[f].gly[c].wx;
+ p->engine.ps.pscol += (size_t)fonts[f].gly[c].wx;
}
* or anything).
*/
- if ( ! (PS_INLINE & p->engine.ps.psstate))
+ if ( ! (PS_INLINE & p->engine.ps.flags))
return;
- ps_printf(p, ") show\n");
- p->engine.ps.psstate &= ~PS_INLINE;
+ if (TERMTYPE_PS != p->type) {
+ ps_printf(p, ") Tj\nET\n");
+ } else
+ ps_printf(p, ") show\n");
+
+ p->engine.ps.flags &= ~PS_INLINE;
}
p->engine.ps.last = '\0';
}
- if ( ! (PS_INLINE & p->engine.ps.psstate))
+ if ( ! (PS_INLINE & p->engine.ps.flags))
return;
ps_pclose(p);
* lines, we'll do nasty stuff.
*/
- if (PS_MARGINS & p->engine.ps.psstate)
+ if (PS_MARGINS & p->engine.ps.flags)
+ return;
+
+ /* Left-justify. */
+
+ p->engine.ps.pscol = p->engine.ps.left;
+
+ /* If we haven't printed anything, return. */
+
+ if (PS_NEWPAGE & p->engine.ps.flags)
return;
/*
* showpage and restart our row.
*/
- p->engine.ps.pscol = p->engine.ps.left;
if (p->engine.ps.psrow >= p->engine.ps.lineheight +
p->engine.ps.bottom) {
p->engine.ps.psrow -= p->engine.ps.lineheight;
return;
}
- assert(p->engine.ps.psmarg && p->engine.ps.psmarg[0]);
- printf("%s", p->engine.ps.psmarg);
- printf("showpage\n");
- p->engine.ps.pages++;
- printf("%%%%Page: %zu %zu\n",
- p->engine.ps.pages + 1,
- p->engine.ps.pages + 1);
- p->engine.ps.psrow = p->engine.ps.top;
+ ps_closepage(p);
}
{
assert(f < TERMFONT__MAX);
- ps_printf(p, "/%s %zu selectfont\n",
- fonts[(int)f].name, p->engine.ps.scale);
p->engine.ps.lastf = f;
+
+ /*
+ * If we're still at the top of the page, let the font-setting
+ * be delayed until we actually have stuff to print.
+ */
+
+ if (PS_NEWPAGE & p->engine.ps.flags)
+ return;
+
+ if (TERMTYPE_PS == p->type)
+ ps_printf(p, "/%s %zu selectfont\n",
+ fonts[(int)f].name,
+ p->engine.ps.scale);
+ else
+ ps_printf(p, "/F%d %zu Tf\n",
+ (int)f,
+ p->engine.ps.scale);
}
{
if (c <= 32 || c - 32 >= MAXCHAR)
- return(fonts[(int)TERMFONT_NONE].gly[0].wx);
+ return((size_t)fonts[(int)TERMFONT_NONE].gly[0].wx);
c -= 32;
- return(fonts[(int)TERMFONT_NONE].gly[(int)c].wx);
+ return((size_t)fonts[(int)TERMFONT_NONE].gly[(int)c].wx);
}
r = PNT2AFM(p, su->scale * 100);
break;
case (SCALE_EM):
- r = su->scale *
+ r = su->scale *
fonts[(int)TERMFONT_NONE].gly[109 - 32].wx;
break;
case (SCALE_MM):
r = PNT2AFM(p, su->scale * 2.834);
break;
case (SCALE_EN):
- r = su->scale *
+ r = su->scale *
fonts[(int)TERMFONT_NONE].gly[110 - 32].wx;
break;
case (SCALE_VS):
git.ckatri.com / mandoc.git / blobdiff