diff options
Diffstat (limited to 'dvi/mdvi-lib/vf.c')
| -rw-r--r-- | dvi/mdvi-lib/vf.c | 240 |
1 files changed, 0 insertions, 240 deletions
diff --git a/dvi/mdvi-lib/vf.c b/dvi/mdvi-lib/vf.c deleted file mode 100644 index e1397fd..0000000 --- a/dvi/mdvi-lib/vf.c +++ /dev/null @@ -1,240 +0,0 @@ -/* vf.c -- VF font support */ -/* - * Copyright (C) 2000, Matias Atria - * - * This program 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. - * - * This program 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 this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -#include <string.h> - -#include "mdvi.h" -#include "private.h" - -static int vf_load_font __PROTO((DviParams *, DviFont *)); -static void vf_free_macros __PROTO((DviFont *)); - -/* only symbol exported by this file */ -DviFontInfo vf_font_info = { - "VF", - 1, /* virtual fonts scale just fine */ - vf_load_font, - NULL, /* get_glyph */ - NULL, /* shrink0 */ - NULL, /* shrink1 */ - vf_free_macros, - NULL, /* reset */ - NULL, /* lookup */ - kpse_vf_format, - NULL -}; - -DviFontInfo ovf_font_info = { - "OVF", - 1, /* virtual fonts scale just fine */ - vf_load_font, - NULL, /* get_glyph */ - NULL, /* shrink0 */ - NULL, /* shrink1 */ - vf_free_macros, - NULL, /* reset */ - NULL, /* lookup */ - kpse_ovf_format, - NULL -}; - -static int vf_load_font(DviParams *params, DviFont *font) -{ - FILE *p; - Uchar *macros; - int msize; - int mlen; - Int32 checksum; - long alpha, beta, z; - int op; - int i; - int nchars; - int loc, hic; - DviFontRef *last; - - macros = NULL; - msize = mlen = 0; - p = font->in; - - if(fuget1(p) != 247 || fuget1(p) != 202) - goto badvf; - mlen = fuget1(p); - fseek(p, (long)mlen, SEEK_CUR); - checksum = fuget4(p); - if(checksum && font->checksum && checksum != font->checksum) { - warning(_("%s: Checksum mismatch (expected %u, got %u)\n"), - font->fontname, font->checksum, checksum); - } else if(!font->checksum) - font->checksum = checksum; - font->design = fuget4(p); - - /* read all the fonts in the preamble */ - last = NULL; - - /* initialize alpha, beta and z for TFM width computation */ - TFMPREPARE(font->scale, z, alpha, beta); - - op = fuget1(p); - while(op >= DVI_FNT_DEF1 && op <= DVI_FNT_DEF4) { - DviFontRef *ref; - Int32 scale, design; - Uint32 checksum; - int id; - int n; - int hdpi; - int vdpi; - char *name; - - /* process fnt_def commands */ - - id = fugetn(p, op - DVI_FNT_DEF1 + 1); - checksum = fuget4(p); - scale = fuget4(p); - design = fuget4(p); - - /* scale this font according to our parent's scale */ - scale = TFMSCALE(scale, z, alpha, beta); - design = FROUND(params->tfm_conv * design); - - /* compute the resolution */ - hdpi = FROUND(params->mag * params->dpi * scale / design); - vdpi = FROUND(params->mag * params->vdpi * scale / design); - n = fuget1(p) + fuget1(p); - name = mdvi_malloc(n + 1); - fread(name, 1, n, p); - name[n] = 0; - DEBUG((DBG_FONTS, "(vf) %s: defined font `%s' at %.1fpt (%dx%d dpi)\n", - font->fontname, name, - (double)scale / (params->tfm_conv * 0x100000), hdpi, vdpi)); - - /* get the font */ - ref = font_reference(params, id, name, checksum, hdpi, vdpi, scale); - if(ref == NULL) { - error(_("(vf) %s: could not load font `%s'\n"), - font->fontname, name); - goto error; - } - mdvi_free(name); - if(last == NULL) - font->subfonts = last = ref; - else - last->next = ref; - ref->next = NULL; - op = fuget1(p); - } - - if(op >= DVI_FNT_DEF1 && op <= DVI_FNT_DEF4) - goto error; - - /* This function correctly reads both .vf and .ovf files */ - - font->chars = xnalloc(DviFontChar, 256); - for(i = 0; i < 256; i++) - font->chars[i].offset = 0; - nchars = 256; - loc = -1; hic = -1; - /* now read the characters themselves */ - while(op <= 242) { - int pl; - Int32 cc; - Int32 tfm; - - if(op == 242) { - pl = fuget4(p); - cc = fuget4(p); - tfm = fuget4(p); - } else { - pl = op; - cc = fuget1(p); - tfm = fuget3(p); - } - if(loc < 0 || cc < loc) - loc = cc; - if(hic < 0 || cc > hic) - hic = cc; - if(cc >= nchars) { - font->chars = xresize(font->chars, - DviFontChar, cc + 16); - for(i = nchars; i < cc + 16; i++) - font->chars[i].offset = 0; - nchars = cc + 16; - } - if(font->chars[cc].offset) { - error(_("(vf) %s: character %d redefined\n"), - font->fontname, cc); - goto error; - } - - DEBUG((DBG_GLYPHS, "(vf) %s: defined character %d (macro length %d)\n", - font->fontname, cc, pl)); - font->chars[cc].width = pl + 1; - font->chars[cc].code = cc; - font->chars[cc].tfmwidth = TFMSCALE(tfm, z, alpha, beta); - font->chars[cc].offset = mlen; - font->chars[cc].loaded = 1; - if(mlen + pl + 1 > msize) { - msize = mlen + pl + 256; - macros = xresize(macros, Uchar, msize); - } - if(pl && fread(macros + mlen, 1, pl, p) != pl) - break; - macros[mlen+pl] = DVI_EOP; - mlen += pl + 1; - op = fuget1(p); - } - if(op != 248) { - error(_("(vf) %s: no postamble\n"), font->fontname); - goto error; - } - - /* make macro memory just big enough */ - if(msize > mlen) { - macros = xresize(macros, Uchar, mlen); - msize = mlen; - } - - DEBUG((DBG_FONTS|DBG_GLYPHS, - "(vf) %s: macros use %d bytes\n", font->fontname, msize)); - - if(loc > 0 || hic < nchars-1) { - memmove(font->chars, font->chars + loc, - (hic - loc + 1) * sizeof(DviFontChar)); - font->chars = xresize(font->chars, - DviFontChar, hic - loc + 1); - } - font->loc = loc; - font->hic = hic; - font->private = macros; - - return 0; - -badvf: - error(_("%s: File corrupted, or not a VF file.\n"), font->fontname); -error: - if(font->chars) - mdvi_free(font->chars); - if(macros) - mdvi_free(macros); - return -1; -} - -static void vf_free_macros(DviFont *font) -{ - mdvi_free(font->private); -} |