+++ /dev/null
-/*
- * The font parser using the FreeType library version 2.
- *
- * see COPYRIGHT
- *
- */
-
-#include "../../config.h"
-#ifdef USE_FREETYPE
-
-#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
-#include <ctype.h>
-#include <sys/types.h>
-#include <freetype/freetype.h>
-#include <freetype/ftglyph.h>
-#include <freetype/ftsnames.h>
-#include <freetype/ttnameid.h>
-#include <freetype/ftoutln.h>
-#include "pt1.h"
-#include "global.h"
-
-/* prototypes of call entries */
-static void openfont(char *fname, char *arg);
-static void closefont( void);
-static int getnglyphs ( void);
-static int glnames( GLYPH *glyph_list);
-static void glmetrics( GLYPH *glyph_list);
-static int glenc( GLYPH *glyph_list, int *encoding, int *unimap);
-static void fnmetrics( struct font_metrics *fm);
-static void glpath( int glyphno, GLYPH *glyph_list);
-static void kerning( GLYPH *glyph_list);
-
-/* globals */
-
-/* front-end descriptor */
-struct frontsw freetype_sw = {
- /*name*/ "ft",
- /*descr*/ "based on the FreeType library",
- /*suffix*/ { "ttf", "otf", "pfa", "pfb" },
- /*open*/ openfont,
- /*close*/ closefont,
- /*nglyphs*/ getnglyphs,
- /*glnames*/ glnames,
- /*glmetrics*/ glmetrics,
- /*glenc*/ glenc,
- /*fnmetrics*/ fnmetrics,
- /*glpath*/ glpath,
- /*kerning*/ kerning,
-};
-
-/* statics */
-
-static char * dupcnstring( unsigned char *s, int len);
-
-static FT_Library library;
-static FT_Face face;
-
-static int enc_type, enc_found;
-
-/* SFNT functions do not seem to be included by default in FT2beta8 */
-#define ENABLE_SFNT
-
-/*
- * Open font and prepare to return information to the main driver.
- * May print error and warning messages.
- * Exit on error.
- */
-
-static void
-openfont(
- char *fname,
- char *arg /* unused now */
-)
-{
- FT_Error error;
-
- if( FT_Init_FreeType( &library ) ) {
- fprintf(stderr, "** FreeType initialization failed\n");
- exit(1);
- }
-
- if( error = FT_New_Face( library, fname, 0, &face ) ) {
- if ( error == FT_Err_Unknown_File_Format )
- fprintf(stderr, "**** %s has format unknown to FreeType\n", fname);
- else
- fprintf(stderr, "**** Cannot access %s ****\n", fname);
- exit(1);
- }
-
- if(FT_HAS_FIXED_SIZES(face)) {
- WARNING_1 fprintf(stderr, "Font contains bitmaps\n");
- }
- if(FT_HAS_MULTIPLE_MASTERS(face)) {
- WARNING_1 fprintf(stderr, "Font contains multiple masters, using default\n");
- }
-
- if(ISDBG(FT)) fprintf(stderr," %d units per EM\n", face->units_per_EM);
-
- enc_found = 0;
-}
-
-/*
- * Close font.
- * Exit on error.
- */
-
-static void
-closefont(
- void
-)
-{
- if( FT_Done_Face(face) ) {
- WARNING_1 fprintf(stderr, "Errors when closing the font file, ignored\n");
- }
- if( FT_Done_FreeType(library) ) {
- WARNING_1 fprintf(stderr, "Errors when stopping FreeType, ignored\n");
- }
-}
-
-/*
- * Get the number of glyphs in font.
- */
-
-static int
-getnglyphs (
- void
-)
-{
- if(ISDBG(FT)) fprintf(stderr, "%d glyphs in font\n", face->num_glyphs);
- return (int)face->num_glyphs;
-}
-
-/*
- * Get the names of the glyphs.
- * Returns 0 if the names were assigned, non-zero if the font
- * provides no glyph names.
- */
-
-static int
-glnames(
- GLYPH *glyph_list
-)
-{
-#define MAX_NAMELEN 1024
- unsigned char bf[1024];
- int i;
-
- if( ! FT_HAS_GLYPH_NAMES(face) ) {
- WARNING_1 fprintf(stderr, "Font has no glyph names\n");
- return 1;
- }
-
- for(i=0; i < face->num_glyphs; i++) {
- if( FT_Get_Glyph_Name(face, i, bf, MAX_NAMELEN) || bf[0]==0 ) {
- sprintf(bf, "_g_%d", i);
- WARNING_2 fprintf(stderr,
- "Glyph No. %d has no postscript name, becomes %s\n", i, bf);
- }
- glyph_list[i].name = strdup(bf);
- if(ISDBG(FT)) fprintf(stderr, "%d has name %s\n", i, bf);
- if (glyph_list[i].name == NULL) {
- fprintf (stderr, "****malloc failed %s line %d\n", __FILE__, __LINE__);
- exit(255);
- }
- }
- return 0;
-}
-
-/*
- * Get the metrics of the glyphs.
- */
-
-static void
-glmetrics(
- GLYPH *glyph_list
-)
-{
- GLYPH *g;
- int i;
- FT_Glyph_Metrics *met;
- FT_BBox bbox;
- FT_Glyph gly;
-
- for(i=0; i < face->num_glyphs; i++) {
- g = &(glyph_list[i]);
-
- if( FT_Load_Glyph(face, i, FT_LOAD_NO_BITMAP|FT_LOAD_NO_SCALE) ) {
- fprintf(stderr, "Can't load glyph %s, skipped\n", g->name);
- continue;
- }
-
- met = &face->glyph->metrics;
-
- if(FT_HAS_HORIZONTAL(face)) {
- g->width = met->horiAdvance;
- g->lsb = met->horiBearingX;
- } else {
- WARNING_2 fprintf(stderr, "Glyph %s has no horizontal metrics, guessed them\n", g->name);
- g->width = met->width;
- g->lsb = 0;
- }
-
- if( FT_Get_Glyph(face->glyph, &gly) ) {
- fprintf(stderr, "Can't access glyph %s bbox, skipped\n", g->name);
- continue;
- }
-
- FT_Glyph_Get_CBox(gly, ft_glyph_bbox_unscaled, &bbox);
- g->xMin = bbox.xMin;
- g->yMin = bbox.yMin;
- g->xMax = bbox.xMax;
- g->yMax = bbox.yMax;
-
- g->ttf_pathlen = face->glyph->outline.n_points;
- }
-}
-
-/*
- * Get the original encoding of the font.
- * Returns 1 for if the original encoding is Unicode, 2 if the
- * original encoding is other 16-bit, 0 if 8-bit.
- */
-
-static int
-glenc(
- GLYPH *glyph_list,
- int *encoding,
- int *unimap
-)
-{
- int i, e;
- unsigned code;
-
- if(ISDBG(FT))
- for(e=0; e < face->num_charmaps; e++) {
- fprintf(stderr, "found encoding pid=%d eid=%d\n",
- face->charmaps[e]->platform_id,
- face->charmaps[e]->encoding_id);
- }
-
- if(enc_found)
- goto populate_map;
-
- enc_type = 0;
-
- /* first check for an explicit PID/EID */
-
- if(force_pid != -1) {
- for(e=0; e < face->num_charmaps; e++) {
- if(face->charmaps[e]->platform_id == force_pid
- && face->charmaps[e]->encoding_id == force_eid) {
- WARNING_1 fprintf(stderr, "Found Encoding PID=%d/EID=%d\n",
- force_pid, force_eid);
- if( FT_Set_Charmap(face, face->charmaps[e]) ) {
- fprintf(stderr, "**** Cannot set charmap in FreeType ****\n");
- exit(1);
- }
- enc_type = 1;
- goto populate_map;
- }
- }
- fprintf(stderr, "*** TTF encoding table PID=%d/EID=%d not found\n",
- force_pid, force_eid);
- exit(1);
- }
-
- /* next check for a direct Adobe mapping */
-
- if(!forcemap) {
- for(e=0; e < face->num_charmaps; e++) {
- if(face->charmaps[e]->encoding == ft_encoding_adobe_custom) {
- WARNING_1 fputs("Found Adobe Custom Encoding\n", stderr);
- if( FT_Set_Charmap(face, face->charmaps[e]) ) {
- fprintf(stderr, "**** Cannot set charmap in FreeType ****\n");
- exit(1);
- }
- goto populate_map;
- }
- }
- }
-
- for(e=0; e < face->num_charmaps; e++) {
- if(face->charmaps[e]->platform_id == 3) {
- switch(face->charmaps[e]->encoding_id) {
- case 0:
- WARNING_1 fputs("Found Symbol Encoding\n", stderr);
- break;
- case 1:
- WARNING_1 fputs("Found Unicode Encoding\n", stderr);
- enc_type = 1;
- break;
- default:
- WARNING_1 {
- fprintf(stderr,
- "****MS Encoding ID %d not supported****\n",
- face->charmaps[e]->encoding_id);
- fputs("Treating it like Symbol encoding\n", stderr);
- }
- break;
- }
- break;
- }
- }
- if(e >= face->num_charmaps) {
- WARNING_1 fputs("No Microsoft encoding, using first encoding available\n", stderr);
- e = 0;
- }
-
- if( !face->charmaps || FT_Set_Charmap(face, face->charmaps[e]) ) {
- fprintf(stderr, "**** Cannot set charmap in FreeType ****\n");
- }
-
-populate_map:
- enc_found = 1;
- for(i=0; i<ENCTABSZ; i++) {
- if(encoding[i] != -1)
- continue;
- if(enc_type == 1 || forcemap) {
- code = unimap[i];
- if(code == (unsigned) -1)
- continue;
- } else
- code = i;
-
- code = FT_Get_Char_Index(face, code);
- if(0 && ISDBG(FT)) fprintf(stderr, "code of %3d is %3d\n", i, code);
- if(code == 0)
- continue; /* .notdef */
- encoding[i] = code;
- }
-
- return enc_type;
-}
-
-/* duplicate a string with counter to a 0-terminated string */
-static char *
-dupcnstring(
- unsigned char *s,
- int len
-)
-{
- char *res, *out;
- int i, c;
- static int warned=0;
-
- if(( res = malloc(len+1) )==NULL) {
- fprintf (stderr, "****malloc failed %s line %d\n", __FILE__, __LINE__);
- exit(255);
- }
-
- out = res;
- for(i=0; i<len; i++) {
- if(( c=s[i] )>=' ' && c!=127)
- *out++ = c;
- else if(!warned) {
- warned=1;
- WARNING_1 fprintf(stderr, "Some font name strings are in Unicode, may not show properly\n");
- }
- }
- *out = 0;
- return res;
-}
-
-/*
- * Get the font metrics
- */
-static void
-fnmetrics(
- struct font_metrics *fm
-)
-{
- char *str;
- static char *fieldstocheck[3];
-#ifdef ENABLE_SFNT
- FT_SfntName sn;
-#endif /* ENABLE_SFNT */
- int i;
-
- fm->italic_angle = 0.0; /* FreeType hides the angle */
- fm->underline_position = face->underline_position;
- fm->underline_thickness = face->underline_thickness;
- fm->is_fixed_pitch = FT_IS_FIXED_WIDTH(face);
-
- fm->ascender = face->ascender;
- fm->descender = face->descender;
-
- fm->units_per_em = face->units_per_EM;
-
- fm->bbox[0] = face->bbox.xMin;
- fm->bbox[1] = face->bbox.yMin;
- fm->bbox[2] = face->bbox.xMax;
- fm->bbox[3] = face->bbox.yMax;
-
-#ifdef ENABLE_SFNT
- if( FT_Get_Sfnt_Name(face, TT_NAME_ID_COPYRIGHT, &sn) )
-#endif /* ENABLE_SFNT */
- fm->name_copyright = "";
-#ifdef ENABLE_SFNT
- else
- fm->name_copyright = dupcnstring(sn.string, sn.string_len);
-#endif /* ENABLE_SFNT */
-
- fm->name_family = face->family_name;
-
- fm->name_style = face->style_name;
- if(fm->name_style == NULL)
- fm->name_style = "";
-
-#ifdef ENABLE_SFNT
- if( FT_Get_Sfnt_Name(face, TT_NAME_ID_FULL_NAME, &sn) )
-#endif /* ENABLE_SFNT */
- {
- int len;
-
- if(!fm->name_family)
- fm->name_family = "";
- if(!fm->name_style)
- fm->name_style= "";
- len = strlen(fm->name_family) + strlen(fm->name_style) + 2;
- if(( fm->name_full = malloc(len) )==NULL) {
- fprintf (stderr, "****malloc failed %s line %d\n", __FILE__, __LINE__);
- exit(255);
- }
- strcpy(fm->name_full, fm->name_family);
- if(strlen(fm->name_style) != 0) {
- strcat(fm->name_full, " ");
- strcat(fm->name_full, fm->name_style);
- }
- }
-#ifdef ENABLE_SFNT
- else
- fm->name_full = dupcnstring(sn.string, sn.string_len);
-#endif /* ENABLE_SFNT */
-
-#ifdef ENABLE_SFNT
- if( FT_Get_Sfnt_Name(face, TT_NAME_ID_VERSION_STRING, &sn) )
-#endif /* ENABLE_SFNT */
- fm->name_version = "1.0";
-#ifdef ENABLE_SFNT
- else
- fm->name_version = dupcnstring(sn.string, sn.string_len);
-#endif /* ENABLE_SFNT */
-
-#ifdef ENABLE_SFNT
- if( FT_Get_Sfnt_Name(face, TT_NAME_ID_PS_NAME , &sn) ) {
-#endif /* ENABLE_SFNT */
- if(( fm->name_ps = strdup(fm->name_full) )==NULL) {
- fprintf (stderr, "****malloc failed %s line %d\n", __FILE__, __LINE__);
- exit(255);
- }
-#ifdef ENABLE_SFNT
- } else
- fm->name_ps = dupcnstring(sn.string, sn.string_len);
-#endif /* ENABLE_SFNT */
- for(i=0; fm->name_ps[i]!=0; i++)
- if(fm->name_ps[i] == ' ')
- fm->name_ps[i] = '_'; /* no spaces in the Postscript name */
-
- /* guess the boldness from the font names */
- fm->force_bold=0;
-
- fieldstocheck[0] = fm->name_style;
- fieldstocheck[1] = fm->name_full;
- fieldstocheck[2] = fm->name_ps;
-
- for(i=0; !fm->force_bold && i<sizeof fieldstocheck /sizeof(fieldstocheck[0]); i++) {
- int j;
- str=fieldstocheck[i];
- for(j=0; str[j]!=0; j++) {
- if( (str[j]=='B'
- || str[j]=='b'
- && ( j==0 || !isalpha(str[j-1]) )
- )
- && !strncmp("old",&str[j+1],3)
- && !islower(str[j+4])
- ) {
- fm->force_bold=1;
- break;
- }
- }
- }
-}
-
-/*
- * Functions to decompose the outlines
- */
-
-static GLYPH *curg;
-static double lastx, lasty;
-
-static int
-outl_moveto(
- FT_Vector *to,
- void *unused
-)
-{
- double tox, toy;
-
- tox = fscale((double)to->x); toy = fscale((double)to->y);
-
- /* FreeType does not do explicit closepath() */
- if(curg->lastentry) {
- g_closepath(curg);
- }
- fg_rmoveto(curg, tox, toy);
- lastx = tox; lasty = toy;
-
- return 0;
-}
-
-static int
-outl_lineto(
- FT_Vector *to,
- void *unused
-)
-{
- double tox, toy;
-
- tox = fscale((double)to->x); toy = fscale((double)to->y);
-
- fg_rlineto(curg, tox, toy);
- lastx = tox; lasty = toy;
-
- return 0;
-}
-
-static int
-outl_conicto(
- FT_Vector *control1,
- FT_Vector *to,
- void *unused
-)
-{
- double c1x, c1y, tox, toy;
-
- c1x = fscale((double)control1->x); c1y = fscale((double)control1->y);
- tox = fscale((double)to->x); toy = fscale((double)to->y);
-
- fg_rrcurveto(curg,
- (lastx + 2.0 * c1x) / 3.0, (lasty + 2.0 * c1y) / 3.0,
- (2.0 * c1x + tox) / 3.0, (2.0 * c1y + toy) / 3.0,
- tox, toy );
- lastx = tox; lasty = toy;
-
- return 0;
-}
-
-static int
-outl_cubicto(
- FT_Vector *control1,
- FT_Vector *control2,
- FT_Vector *to,
- void *unused
-)
-{
- double c1x, c1y, c2x, c2y, tox, toy;
-
- c1x = fscale((double)control1->x); c1y = fscale((double)control1->y);
- c2x = fscale((double)control2->x); c2y = fscale((double)control2->y);
- tox = fscale((double)to->x); toy = fscale((double)to->y);
-
- fg_rrcurveto(curg, c1x, c1y, c2x, c2y, tox, toy);
- lastx = tox; lasty = toy;
-
- return 0;
-}
-
-static FT_Outline_Funcs ft_outl_funcs = {
- outl_moveto,
- outl_lineto,
- outl_conicto,
- outl_cubicto,
- 0,
- 0
-};
-
-/*
- * Get the path of contrours for a glyph.
- */
-
-static void
-glpath(
- int glyphno,
- GLYPH *glyf_list
-)
-{
- FT_Outline *ol;
-
- curg = &glyf_list[glyphno];
-
- if( FT_Load_Glyph(face, glyphno, FT_LOAD_NO_BITMAP|FT_LOAD_NO_SCALE|FT_LOAD_NO_HINTING)
- || face->glyph->format != ft_glyph_format_outline ) {
- fprintf(stderr, "Can't load glyph %s, skipped\n", curg->name);
- return;
- }
-
- ol = &face->glyph->outline;
- lastx = 0.0; lasty = 0.0;
-
- if( FT_Outline_Decompose(ol, &ft_outl_funcs, NULL) ) {
- fprintf(stderr, "Can't decompose outline of glyph %s, skipped\n", curg->name);
- return;
- }
-
- /* FreeType does not do explicit closepath() */
- if(curg->lastentry) {
- g_closepath(curg);
- }
-
- if(ol->flags & ft_outline_reverse_fill) {
- assertpath(curg->entries, __FILE__, __LINE__, curg->name);
- reversepaths(curg);
- }
-}
-
-/*
- * Get the kerning data.
- */
-
-static void
-kerning(
- GLYPH *glyph_list
-)
-{
- int i, j, n;
- int nglyphs = face->num_glyphs;
- FT_Vector k;
- GLYPH *gl;
-
- if( nglyphs == 0 || !FT_HAS_KERNING(face) ) {
- WARNING_1 fputs("No Kerning data\n", stderr);
- return;
- }
-
- for(i=0; i<nglyphs; i++) {
- if( (glyph_list[i].flags & GF_USED) ==0)
- continue;
- for(j=0; j<nglyphs; j++) {
- if( (glyph_list[j].flags & GF_USED) ==0)
- continue;
- if( FT_Get_Kerning(face, i, j, ft_kerning_unscaled, &k) )
- continue;
- if( k.x == 0 )
- continue;
-
- addkernpair(i, j, k.x);
- }
- }
-}
-
-#endif
git.asbjorn.biz / swftools.git / blobdiff