+pspdf_free(void *arg)
+{
+ struct termp *p;
+
+ p = (struct termp *)arg;
+
+ free(p->ps->psmarg);
+ free(p->ps->pdfobjs);
+
+ free(p->ps);
+ term_free(p);
+}
+
+static void
+ps_printf(struct termp *p, const char *fmt, ...)
+{
+ va_list ap;
+ int pos, len;
+
+ va_start(ap, fmt);
+
+ /*
+ * If we're running in regular mode, then pipe directly into
+ * vprintf(). If we're processing margins, then push the data
+ * into our growable margin buffer.
+ */
+
+ if ( ! (PS_MARGINS & p->ps->flags)) {
+ len = vprintf(fmt, ap);
+ va_end(ap);
+ p->ps->pdfbytes += len < 0 ? 0 : (size_t)len;
+ return;
+ }
+
+ /*
+ * XXX: I assume that the in-margin print won't exceed
+ * PS_BUFSLOP (128 bytes), which is reasonable but still an
+ * assumption that will cause pukeage if it's not the case.
+ */
+
+ ps_growbuf(p, PS_BUFSLOP);
+
+ pos = (int)p->ps->psmargcur;
+ vsnprintf(&p->ps->psmarg[pos], PS_BUFSLOP, fmt, ap);
+
+ va_end(ap);
+
+ p->ps->psmargcur = strlen(p->ps->psmarg);
+}
+
+static void
+ps_putchar(struct termp *p, char c)
+{
+ int pos;
+
+ /* See ps_printf(). */
+
+ if ( ! (PS_MARGINS & p->ps->flags)) {
+ putchar(c);
+ p->ps->pdfbytes++;
+ return;
+ }
+
+ ps_growbuf(p, 2);
+
+ pos = (int)p->ps->psmargcur++;
+ p->ps->psmarg[pos++] = c;
+ p->ps->psmarg[pos] = '\0';
+}
+
+static void
+pdf_obj(struct termp *p, size_t obj)
+{
+
+ assert(obj > 0);
+
+ if ((obj - 1) >= p->ps->pdfobjsz) {
+ p->ps->pdfobjsz = obj + 128;
+ p->ps->pdfobjs = mandoc_reallocarray(p->ps->pdfobjs,
+ p->ps->pdfobjsz, sizeof(size_t));
+ }
+
+ p->ps->pdfobjs[(int)obj - 1] = p->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 shown. In
+ * PDF, we must now create the Length, Resource, and Page node
+ * for the page contents.
+ */
+
+ assert(p->ps->psmarg && p->ps->psmarg[0]);
+ ps_printf(p, "%s", p->ps->psmarg);
+
+ if (TERMTYPE_PS != p->type) {
+ len = p->ps->pdfbytes - p->ps->pdflastpg;
+ base = p->ps->pages * 4 + p->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>>\nendobj\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->ps->pages++;
+ p->ps->psrow = p->ps->top;
+ assert( ! (PS_NEWPAGE & p->ps->flags));
+ p->ps->flags |= PS_NEWPAGE;
+}
+
+static void
+ps_end(struct termp *p)
+{
+ size_t i, xref, base;
+
+ ps_plast(p);
+ ps_pclose(p);
+
+ /*
+ * At the end of the file, do one last showpage. This is the
+ * same behaviour as groff(1) and works for multiple pages as
+ * well as just one.
+ */
+
+ if ( ! (PS_NEWPAGE & p->ps->flags)) {
+ assert(0 == p->ps->flags);
+ assert('\0' == p->ps->last);
+ ps_closepage(p);
+ }
+
+ if (TERMTYPE_PS == p->type) {
+ ps_printf(p, "%%%%Trailer\n");
+ ps_printf(p, "%%%%Pages: %zu\n", p->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->ps->width),
+ (size_t)AFM2PNT(p, p->ps->height));
+
+ ps_printf(p, "/Count %zu\n", p->ps->pages);
+ ps_printf(p, "/Kids [");
+
+ for (i = 0; i < p->ps->pages; i++)
+ ps_printf(p, " %zu 0 R", i * 4 + p->ps->pdfbody + 3);
+
+ base = (p->ps->pages - 1) * 4 + p->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, ">>\nendobj\n");
+ xref = p->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->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");
+}
+
+static void
+ps_begin(struct termp *p)
+{
+ size_t width, height;
+ int i;
+
+ /*
+ * Print margins into margin buffer. Nothing gets output to the
+ * screen yet, so we don't need to initialise the primary state.
+ */
+
+ if (p->ps->psmarg) {
+ assert(p->ps->psmargsz);
+ p->ps->psmarg[0] = '\0';
+ }
+
+ /*p->ps->pdfbytes = 0;*/
+ p->ps->psmargcur = 0;
+ p->ps->flags = PS_MARGINS;
+ p->ps->pscol = p->ps->left;
+ p->ps->psrow = p->ps->header;
+ p->ps->lastrow = 0; /* impossible row */
+
+ ps_setfont(p, TERMFONT_NONE);
+
+ (*p->headf)(p, p->argf);
+ (*p->endline)(p);
+
+ p->ps->pscol = p->ps->left;
+ p->ps->psrow = p->ps->footer;
+
+ (*p->footf)(p, p->argf);
+ (*p->endline)(p);
+
+ p->ps->flags &= ~PS_MARGINS;
+
+ assert(0 == p->ps->flags);
+ assert(p->ps->psmarg);
+ assert('\0' != p->ps->psmarg[0]);
+
+ /*
+ * Print header and initialise page state. Following this,
+ * stuff gets printed to the screen, so make sure we're sane.
+ */
+
+ if (TERMTYPE_PS == p->type) {
+ width = AFM2PNT(p, p->ps->width);
+ height = AFM2PNT(p, p->ps->height);
+
+ ps_printf(p, "%%!PS-Adobe-3.0\n");
+ 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: man-%s %zu %zu 0 () ()\n",
+ p->ps->medianame, width, 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%%%%DocumentSuppliedResources: "
+ "procset MandocProcs 1.0 0\n");
+ ps_printf(p, "%%%%EndComments\n");
+ ps_printf(p, "%%%%BeginProlog\n");
+ ps_printf(p, "%%%%BeginResource: procset MandocProcs "
+ "10170 10170\n");
+ /* The font size is effectively hard-coded for now. */
+ ps_printf(p, "/fs %zu def\n", p->ps->scale);
+ for (i = 0; i < (int)TERMFONT__MAX; i++)
+ ps_printf(p, "/f%d { /%s fs selectfont } def\n",
+ i, fonts[i].name);
+ ps_printf(p, "/s { 3 1 roll moveto show } bind def\n");
+ ps_printf(p, "/c { exch currentpoint exch pop "
+ "moveto show } bind def\n");
+ ps_printf(p, "%%%%EndResource\n");
+ ps_printf(p, "%%%%EndProlog\n");
+ ps_printf(p, "%%%%BeginSetup\n");
+ ps_printf(p, "%%%%BeginFeature: *PageSize %s\n",
+ p->ps->medianame);
+ ps_printf(p, "<</PageSize [%zu %zu]>>setpagedevice\n",
+ width, height);
+ ps_printf(p, "%%%%EndFeature\n");
+ ps_printf(p, "%%%%EndSetup\n");
+ } else {
+ ps_printf(p, "%%PDF-1.1\n");
+ pdf_obj(p, 1);
+ ps_printf(p, "<<\n");
+ 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%d\n", i);
+ ps_printf(p, "/BaseFont /%s\n", fonts[i].name);
+ ps_printf(p, ">>\nendobj\n");
+ }
+ }
+
+ p->ps->pdfbody = (size_t)TERMFONT__MAX + 3;
+ p->ps->pscol = p->ps->left;
+ p->ps->psrow = p->ps->top;
+ p->ps->flags |= PS_NEWPAGE;
+ ps_setfont(p, TERMFONT_NONE);
+}
+
+static void
+ps_pletter(struct termp *p, int c)
git.ckatri.com / mandoc.git / blobdiff