diff options
author | Karl Berry <karl@freefriends.org> | 2006-01-17 21:41:51 +0000 |
---|---|---|
committer | Karl Berry <karl@freefriends.org> | 2006-01-17 21:41:51 +0000 |
commit | 487ca4806cc046076293cf6cc5fbba0db282bac7 (patch) | |
tree | 847b412ab5158dd7bdd7ed7e5a4cc3fbca94be32 /Build/source/texk/web2c/pdftexdir/writet3.c | |
parent | a3d3111bfe26b8e5f5bc6049dfb2a4ca2edc7881 (diff) |
texk 1
git-svn-id: svn://tug.org/texlive/trunk@1485 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Build/source/texk/web2c/pdftexdir/writet3.c')
-rw-r--r-- | Build/source/texk/web2c/pdftexdir/writet3.c | 389 |
1 files changed, 389 insertions, 0 deletions
diff --git a/Build/source/texk/web2c/pdftexdir/writet3.c b/Build/source/texk/web2c/pdftexdir/writet3.c new file mode 100644 index 00000000000..fa9c09bc3d1 --- /dev/null +++ b/Build/source/texk/web2c/pdftexdir/writet3.c @@ -0,0 +1,389 @@ +/* +Copyright (c) 1996-2002 Han The Thanh, <thanh@pdftex.org> + +This file is part of pdfTeX. + +pdfTeX is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2 of the License, or +(at your option) any later version. + +pdfTeX is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with pdfTeX; if not, write to the Free Software +Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + +$Id: //depot/Build/source.development/TeX/texk/web2c/pdftexdir/writet3.c#9 $ +*/ + +#include "ptexlib.h" +#include <kpathsea/tex-glyph.h> +#include <kpathsea/magstep.h> + +#define T3_BUF_SIZE 1024 + +static const char perforce_id[] = + "$Id: //depot/Build/source.development/TeX/texk/web2c/pdftexdir/writet3.c#9 $"; + +/* define t3_line_ptr, t3_line_array & t3_line_limit */ +typedef char t3_line_entry; +define_array(t3_line); + +FILE *t3_file; +static boolean t3_image_used; + +static integer t3_char_procs[MAX_CHAR_CODE + 1]; +static float t3_char_widths[MAX_CHAR_CODE + 1]; +static int t3_glyph_num; +static float t3_font_scale; +static integer t3_b0, t3_b1, t3_b2, t3_b3; +static boolean is_pk_font; + +#define t3_open() \ + open_input(&t3_file, kpse_miscfonts_format, FOPEN_RBIN_MODE) +#define t3_close() xfclose(t3_file, cur_file_name) +#define t3_getchar() xgetc(t3_file) +#define t3_eof() feof(t3_file) +#define t3_prefix(s) (!strncmp(t3_line_array, s, strlen(s))) +#define t3_putchar(c) pdfout(c) + +#define t3_check_eof() \ + if (t3_eof()) \ + pdftex_fail("unexpected end of file"); + +static void t3_getline(void) +{ + int c; +restart: + t3_line_ptr = t3_line_array; + c = t3_getchar(); + while (!t3_eof()) { + alloc_array(t3_line, 1, T3_BUF_SIZE); + append_char_to_buf(c, t3_line_ptr, t3_line_array, t3_line_limit); + if (c == 10) + break; + c = t3_getchar(); + } + alloc_array(t3_line, 2, T3_BUF_SIZE); + append_eol(t3_line_ptr, t3_line_array, T3_BUF_SIZE); + if (t3_line_ptr - t3_line_array < 2 || *t3_line_array == '%') { + if (!t3_eof()) + goto restart; + } +} + +static void t3_putline(void) +{ + char *p = t3_line_array; + while (p < t3_line_ptr) + t3_putchar(*p++); +} + +static void update_bbox(integer llx, integer lly, integer urx, integer ury, boolean is_first_glyph) +{ + if (is_first_glyph) { + t3_b0 = llx; + t3_b1 = lly; + t3_b2 = urx; + t3_b3 = ury; + } + else { + if (llx < t3_b0) + t3_b0 = llx; + if (lly < t3_b1) + t3_b1 = lly; + if (urx > t3_b2) + t3_b2 = urx; + if (ury > t3_b3) + t3_b3 = ury; + } +} + +static void t3_write_glyph(internalfontnumber f) +{ + static char t3_begin_glyph_str[] = "\\pdfglyph"; + static char t3_end_glyph_str[] = "\\endglyph"; + int glyph_index; + int width, height, depth, llx, lly, urx, ury; + char *p; + t3_getline(); + if (t3_prefix(t3_begin_glyph_str)) { + if (sscanf(t3_line_array + strlen(t3_begin_glyph_str) + 1, + "%i %i %i %i %i %i %i %i =", &glyph_index, + &width, &height, &depth, &llx, &lly, &urx, &ury) != 8) { + remove_eol(p, t3_line_array); + pdftex_warn("invalid glyph preamble: `%s'", t3_line_array); + return; + } + if (glyph_index < fontbc[f] || glyph_index > fontec[f]) + return; + } + else + return; + if (!pdfcharmarked(f, glyph_index)) { + while (!t3_prefix(t3_end_glyph_str)) { + t3_check_eof(); + t3_getline(); + } + return; + } + update_bbox(llx, lly, urx, ury, t3_glyph_num == 0); + t3_glyph_num++; + pdfnewdict(0, 0); + t3_char_procs[glyph_index] = objptr; + if (width == 0) + t3_char_widths[glyph_index] = + (getcharwidth(f, glyph_index)/t3_font_scale) / pdffontsize[f]; + else + t3_char_widths[glyph_index] = width; + pdfbeginstream(); + t3_getline(); + pdf_printf("%i 0 %i %i %i %i d1\nq\n", + (int)t3_char_widths[glyph_index], (int)llx, + (int)lly, (int)urx, (int)ury); + while (!t3_prefix(t3_end_glyph_str)) { + t3_check_eof(); + if (t3_prefix("BI")) + t3_image_used = true; + t3_putline(); + t3_getline(); + } + pdf_puts("Q\n"); + pdfendstream(); +} + +static integer get_pk_font_scale(internalfontnumber f) +{ + return + dividescaled(pkscalefactor, + dividescaled(pdffontsize[f], onehundredbp, fixeddecimaldigits + 2), + 0); +} + +static integer pk_char_width(internalfontnumber f, scaled w) +{ + return + dividescaled(dividescaled(w, pdffontsize[f], 7), + get_pk_font_scale(f), 0); +} + +scaled getpkcharwidth(internalfontnumber f, scaled w) +{ + return (get_pk_font_scale(f)/100000.0)* + (pk_char_width(f, w)/100.0)* + pdffontsize[f]; +} + +static boolean writepk(internalfontnumber f) +{ + kpse_glyph_file_type font_ret; + integer llx, lly, urx, ury; + integer cw, rw, i, j; + halfword *row; + char *name; + chardesc cd; + boolean is_null_glyph, check_preamble; + integer dpi; + int e; + dpi = kpse_magstep_fix( + round(fixedpkresolution*(((float)pdffontsize[f])/fontdsize[f])), + fixedpkresolution, NULL); + cur_file_name = makecstring(fontname[f]); + name = kpse_find_pk(cur_file_name, (unsigned)dpi, &font_ret); + if (name == NULL || + !FILESTRCASEEQ(cur_file_name, font_ret.name) || + !kpse_bitmap_tolerance((float)font_ret.dpi, (float)dpi)) { + pdftex_warn("Font %s at %i not found", cur_file_name, (int)dpi); + cur_file_name = NULL; + return false; + } + t3_file = xfopen(name, FOPEN_RBIN_MODE); + t3_image_used = true; + is_pk_font = true; + tex_printf(" <%s", (char *)name); + cd.rastersize = 256; + cd.raster = xtalloc(cd.rastersize, halfword); + check_preamble = true; + while (readchar(check_preamble, &cd) != 0) { + check_preamble = false; + if (!pdfcharmarked(f, cd.charcode)) + continue; + t3_char_widths[cd.charcode] = + pk_char_width(f, getcharwidth(f, cd.charcode)); + if (cd.cwidth < 1 || cd.cheight < 1) { + cd.xescape = cd.cwidth = round(t3_char_widths[cd.charcode]/100.0); + cd.cheight = 1; + cd.xoff = 0; + cd.yoff = 0; + is_null_glyph = true; + } + else + is_null_glyph = false; + llx = -cd.xoff; + lly = cd.yoff - cd.cheight + 1; + urx = cd.cwidth + llx + 1; + ury = cd.cheight + lly; + update_bbox(llx, lly, urx, ury, t3_glyph_num == 0); + t3_glyph_num++; + pdfnewdict(0, 0); + t3_char_procs[cd.charcode] = objptr; + pdfbeginstream(); + pdfprintreal(t3_char_widths[cd.charcode], 2); + pdf_printf(" 0 %i %i %i %i d1\n", + (int)llx, (int)lly, (int)urx, (int)ury); + if (is_null_glyph) + goto end_stream; + pdf_printf("q\n%i 0 0 %i %i %i cm\nBI\n", (int)cd.cwidth, + (int)cd.cheight, (int)llx, (int)lly); + pdf_printf("/W %i\n/H %i\n", + (int)cd.cwidth, (int)cd.cheight); + pdf_puts("/IM true\n/BPC 1\n/D [1 0]\nID "); + cw = (cd.cwidth + 7)/8; + rw = (cd.cwidth + 15)/16; + row = cd.raster; + for (i = 0; i < cd.cheight; i++) { + for (j = 0; j < rw - 1; j++) { + pdfout(*row/256); + pdfout(*row%256); + row++; + } + pdfout(*row/256); + if (2*rw == cw) + pdfout(*row%256); + row++; + } + pdf_puts("\nEI\nQ\n"); +end_stream: + pdfendstream(); + } + xfree(cd.raster); + cur_file_name = NULL; + return true; +} + +void writet3(int objnum, internalfontnumber f) +{ + static char t3_font_scale_str[] = "\\pdffontscale"; + int i, e; + int first_char, last_char; + integer pk_font_scale; + boolean is_notdef; + t3_glyph_num = 0; + t3_image_used = false; + for (i = 0; i <= MAX_CHAR_CODE; i++) { + t3_char_procs[i] = 0; + t3_char_widths[i] = 0; + } + packfilename(fontname[f], getnullstr(), maketexstring(".pgc")); + cur_file_name = makecstring(makenamestring()); + is_pk_font = false; + if (!t3_open()) { + if (writepk(f)) + goto write_font_dict; + else { + cur_file_name = NULL; + return; + } + } + tex_printf("<%s", nameoffile + 1); + t3_getline(); + if (!t3_prefix(t3_font_scale_str) || + sscanf(t3_line_array + strlen(t3_font_scale_str) + 1, "%g", &t3_font_scale) < 1 || + t3_font_scale <= 0 || t3_font_scale > 1000 ) { + pdftex_warn("missing or invalid font scale"); + t3_close(); + cur_file_name = NULL; + return; + } + while (!t3_eof()) + t3_write_glyph(f); +write_font_dict: + for (i = fontbc[f]; i <= fontec[f]; i++) + if (pdfcharmarked(f, i)) + break; + first_char = i; + for (i = fontec[f]; i > first_char; i--) + if (pdfcharmarked(f, i)) + break; + last_char = i; + pdfbegindict(objnum); /* Type 3 font dictionary */ + pdf_puts("/Type /Font\n/Subtype /Type3\n"); + pdf_printf("/Name /F%i\n", (int)f); + if (pdffontattr[f] != getnullstr()) { + pdfprint(pdffontattr[f]); + pdf_puts("\n"); + } + if (is_pk_font) { + pk_font_scale = get_pk_font_scale(f); + pdf_puts("/FontMatrix ["); + pdfprintreal(pk_font_scale, 5); + pdf_puts(" 0 0 "); + pdfprintreal(pk_font_scale, 5); + pdf_puts(" 0 0]\n") ; + } + else + pdf_printf("/FontMatrix [%g 0 0 %g 0 0]\n", + (double)t3_font_scale, (double)t3_font_scale); + pdf_printf("/%s [ %i %i %i %i ]\n", + font_keys[FONTBBOX1_CODE].pdfname, + (int)t3_b0, (int)t3_b1, + (int)t3_b2, (int)t3_b3); + pdf_printf("/Resources << /ProcSet [ /PDF %s] >>\n", + t3_image_used ? "/ImageB " : ""); + pdf_printf("/FirstChar %i\n/LastChar %i\n", first_char, last_char); + pdf_printf("/Widths %i 0 R\n/Encoding %i 0 R\n/CharProcs %i 0 R\n", + (int)(objptr + 1), (int)(objptr + 2), + (int)(objptr + 3)); + pdfenddict(); + pdfnewobj(0, 0); /* chars width array */ + pdf_puts("["); + if (is_pk_font) + for (i = first_char; i <= last_char; i++) { + pdfprintreal(t3_char_widths[i], 2); + pdf_puts(" "); + } + else + for (i = first_char; i <= last_char; i++) + pdf_printf("%i ", (int)t3_char_widths[i]); + pdf_puts("]\n"); + pdfendobj(); + pdfnewdict(0, 0); /* encoding dictionary */ + pdf_printf("/Type /Encoding\n/Differences [%i", first_char); + if (t3_char_procs[first_char] == 0) { + pdf_printf("/%s", notdef); + is_notdef = true; + } + else { + pdf_printf("/a%i", first_char); + is_notdef = false; + } + for (i = first_char + 1; i <= last_char; i++) { + if (t3_char_procs[i] == 0) { + if (!is_notdef) { + pdf_printf(" %i/%s", i, notdef); + is_notdef = true; + } + } + else { + if (is_notdef) { + pdf_printf(" %i", i); + is_notdef = false; + } + pdf_printf("/a%i", i); + } + } + pdf_puts("]\n"); + pdfenddict(); + pdfnewdict(0, 0); /* CharProcs dictionary */ + for (i = first_char; i <= last_char; i++) + if (t3_char_procs[i] != 0) + pdf_printf("/a%i %i 0 R\n", (int)i, (int)t3_char_procs[i]); + pdfenddict(); + t3_close(); + tex_printf(">"); + cur_file_name = NULL; +} |