]> git.cameronkatri.com Git - mandoc.git/blobdiff - term_ps.c
`Ad' is supposed to underline. Found whilst trolling through manuals.
[mandoc.git] / term_ps.c
index 5b025ddd0620ea2928d10569d4b5d5a4297c06d6..b865f1671ce2b9296b9c22e62dc387167a3dac1d 100644 (file)
--- a/term_ps.c
+++ b/term_ps.c
@@ -1,6 +1,6 @@
-/*     $Id: term_ps.c,v 1.32 2010/07/04 20:17:42 kristaps Exp $ */
+/*     $Id: term_ps.c,v 1.39 2010/07/25 22:15:07 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 {
@@ -373,6 +373,7 @@ static      double            ps_hspan(const struct termp *,
 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 *);
@@ -382,10 +383,36 @@ static    void              ps_pletter(struct termp *, int);
 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;
+
+       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;
@@ -402,7 +429,6 @@ ps_alloc(char *outopts)
        p->endline = ps_endline;
        p->hspan = ps_hspan;
        p->letter = ps_letter;
-       p->type = TERMTYPE_PS;
        p->width = ps_width;
        
        toks[0] = "paper";
@@ -487,7 +513,7 @@ ps_alloc(char *outopts)
 
 
 void
-ps_free(void *arg)
+pspdf_free(void *arg)
 {
        struct termp    *p;
 
@@ -495,6 +521,8 @@ ps_free(void *arg)
 
        if (p->engine.ps.psmarg)
                free(p->engine.ps.psmarg);
+       if (p->engine.ps.pdfobjs)
+               free(p->engine.ps.pdfobjs);
 
        term_free(p);
 }
@@ -504,7 +532,7 @@ static void
 ps_printf(struct termp *p, const char *fmt, ...)
 {
        va_list          ap;
-       int              pos;
+       int              pos, len;
 
        va_start(ap, fmt);
 
@@ -515,8 +543,10 @@ ps_printf(struct termp *p, const char *fmt, ...)
         */
 
        if ( ! (PS_MARGINS & p->engine.ps.flags)) {
-               vprintf(fmt, ap);
+               len = vprintf(fmt, ap);
                va_end(ap);
+               p->engine.ps.pdfbytes += /* LINTED */
+                       len < 0 ? 0 : (size_t)len;
                return;
        }
 
@@ -529,10 +559,11 @@ ps_printf(struct termp *p, const char *fmt, ...)
        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);
 }
 
 
@@ -545,6 +576,7 @@ ps_putchar(struct termp *p, char c)
 
        if ( ! (PS_MARGINS & p->engine.ps.flags)) {
                putchar(c);
+               p->engine.ps.pdfbytes++;
                return;
        }
 
@@ -556,10 +588,87 @@ ps_putchar(struct termp *p, char 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
@@ -570,15 +679,56 @@ ps_end(struct termp *p)
        if ( ! (PS_NEWPAGE & p->engine.ps.flags)) {
                assert(0 == p->engine.ps.flags);
                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");
+               ps_closepage(p);
        }
 
-       printf("%%%%Trailer\n");
-       printf("%%%%Pages: %zu\n", p->engine.ps.pages);
-       printf("%%%%EOF\n");
+       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;
+       } 
+
+       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");
 }
 
 
@@ -598,6 +748,7 @@ ps_begin(struct termp *p)
                p->engine.ps.psmarg[0] = '\0';
        }
 
+       /*p->engine.ps.pdfbytes = 0;*/
        p->engine.ps.psmargcur = 0;
        p->engine.ps.flags = PS_MARGINS;
        p->engine.ps.pscol = p->engine.ps.left;
@@ -627,29 +778,48 @@ ps_begin(struct termp *p)
 
        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);
 }
 
 
@@ -664,12 +834,23 @@ ps_pletter(struct termp *p, int c)
         */
 
        if (PS_NEWPAGE & p->engine.ps.flags) {
-               printf("%%%%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);
+               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;
        }
        
@@ -679,9 +860,17 @@ ps_pletter(struct termp *p, int c)
         */
 
        if ( ! (PS_INLINE & p->engine.ps.flags)) {
-               ps_printf(p, "%zu %zu moveto\n(", 
-                               AFM2PNT(p, p->engine.ps.pscol),
-                               AFM2PNT(p, p->engine.ps.psrow));
+               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;
        }
 
@@ -712,13 +901,13 @@ ps_pletter(struct termp *p, int c)
 
        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;
 }
 
 
@@ -735,7 +924,11 @@ ps_pclose(struct termp *p)
        if ( ! (PS_INLINE & p->engine.ps.flags))
                return;
        
-       ps_printf(p, ") show\n");
+       if (TERMTYPE_PS != p->type) {
+               ps_printf(p, ") Tj\nET\n");
+       } else
+               ps_printf(p, ") show\n");
+
        p->engine.ps.flags &= ~PS_INLINE;
 }
 
@@ -869,13 +1062,7 @@ ps_endline(struct termp *p)
                return;
        }
 
-       assert(p->engine.ps.psmarg && p->engine.ps.psmarg[0]);
-       printf("%s", p->engine.ps.psmarg);
-       printf("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;
+       ps_closepage(p);
 }
 
 
@@ -894,8 +1081,14 @@ ps_setfont(struct termp *p, enum termfont f)
        if (PS_NEWPAGE & p->engine.ps.flags)
                return;
 
-       ps_printf(p, "/%s %zu selectfont\n", 
-                       fonts[(int)f].name, p->engine.ps.scale);
+       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);
 }
 
 
@@ -905,10 +1098,10 @@ ps_width(const struct termp *p, char c)
 {
 
        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);
 }
 
 
@@ -936,14 +1129,14 @@ ps_hspan(const struct termp *p, const struct roffsu *su)
                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):