422 lines
12 KiB
C
422 lines
12 KiB
C
/*
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* sfnttofnt. Bitmap only ttf to Window fnt file converter
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*
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* Copyright 2004 Huw Davies
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "config.h"
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#include <assert.h>
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#include <ctype.h>
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#include <stdio.h>
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#include <stdlib.h>
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#ifdef HAVE_FREETYPE
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#ifdef HAVE_FT2BUILD_H
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#include <ft2build.h>
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#endif
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#include FT_FREETYPE_H
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#include FT_SFNT_NAMES_H
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#include FT_TRUETYPE_TABLES_H
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#include "wine/unicode.h"
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#include "wingdi.h"
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#pragma pack(1)
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typedef struct
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{
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WORD dfVersion;
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DWORD dfSize;
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char dfCopyright[60];
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} FNT_HEADER;
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typedef struct
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{
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INT16 dfType;
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INT16 dfPoints;
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INT16 dfVertRes;
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INT16 dfHorizRes;
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INT16 dfAscent;
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INT16 dfInternalLeading;
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INT16 dfExternalLeading;
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CHAR dfItalic;
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CHAR dfUnderline;
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CHAR dfStrikeOut;
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INT16 dfWeight;
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BYTE dfCharSet;
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INT16 dfPixWidth;
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INT16 dfPixHeight;
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CHAR dfPitchAndFamily;
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INT16 dfAvgWidth;
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INT16 dfMaxWidth;
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CHAR dfFirstChar;
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CHAR dfLastChar;
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CHAR dfDefaultChar;
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CHAR dfBreakChar;
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INT16 dfWidthBytes;
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LONG dfDevice;
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LONG dfFace;
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LONG dfBitsPointer;
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LONG dfBitsOffset;
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CHAR dfReserved;
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/* Fields, introduced for Windows 3.x fonts */
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LONG dfFlags;
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INT16 dfAspace;
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INT16 dfBspace;
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INT16 dfCspace;
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LONG dfColorPointer;
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LONG dfReserved1[4];
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} FONTINFO16, *LPFONTINFO16;
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typedef struct {
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WORD width;
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DWORD offset;
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} CHAR_TABLE_ENTRY;
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void usage(char **argv)
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{
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fprintf(stderr, "%s foo.ttf ppem enc dpi def_char\n", argv[0]);
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return;
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}
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int lookup_charset(int enc)
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{
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/* FIXME: make winelib app and use TranslateCharsetInfo */
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switch(enc) {
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case 1250:
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return EE_CHARSET;
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case 1251:
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return RUSSIAN_CHARSET;
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case 1252:
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return ANSI_CHARSET;
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case 1253:
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return GREEK_CHARSET;
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case 1254:
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return TURKISH_CHARSET;
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case 1255:
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return HEBREW_CHARSET;
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case 1256:
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return ARABIC_CHARSET;
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case 1257:
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return BALTIC_CHARSET;
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case 1258:
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return VIETNAMESE_CHARSET;
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case 437:
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case 737:
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case 775:
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case 850:
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case 852:
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case 855:
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case 857:
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case 860:
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case 861:
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case 862:
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case 863:
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case 864:
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case 865:
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case 866:
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case 869:
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return OEM_CHARSET;
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case 874:
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return THAI_CHARSET;
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case 932:
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return SHIFTJIS_CHARSET;
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case 936:
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return GB2312_CHARSET;
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case 949:
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return HANGUL_CHARSET;
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case 950:
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return CHINESEBIG5_CHARSET;
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}
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fprintf(stderr, "Unknown encoding %d - using OEM_CHARSET\n", enc);
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return OEM_CHARSET;
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}
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static void fill_fontinfo(FT_Face face, int enc, FILE *fp, int dpi, unsigned char def_char)
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{
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int ascent, il, ppem, descent, avg_width, width_bytes = 0, space_size, max_width = 0;
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FNT_HEADER hdr;
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FONTINFO16 fi;
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BYTE left_byte, right_byte, byte;
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DWORD start;
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CHAR_TABLE_ENTRY *dfCharTable;
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int i, x, y, x_off, x_end, first_char;
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FT_Int gi;
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int num_names;
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const union cptable *cptable;
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FT_SfntName sfntname;
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char namebuf[4096];
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TT_OS2 *os2;
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cptable = wine_cp_get_table(enc);
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if(!cptable) {
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fprintf(stderr, "Can't find codepage %d\n", enc);
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exit(0);
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}
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if(cptable->info.char_size != 1) {
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fprintf(stderr, "Can't cope with double byte codepages\n");
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exit(0);
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}
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ppem = face->size->metrics.y_ppem;
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start = sizeof(FNT_HEADER) + sizeof(FONTINFO16);
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if(FT_Load_Char(face, 0xc5, FT_LOAD_DEFAULT)) {
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fprintf(stderr, "Can't find Aring\n");
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exit(0);
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}
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ascent = face->glyph->metrics.height >> 6;
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descent = ppem - ascent;
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if(FT_Load_Char(face, 'M', FT_LOAD_DEFAULT)) {
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fprintf(stderr, "Can't find M\n");
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exit(0);
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}
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il = ascent - (face->glyph->metrics.height >> 6);
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/* Hack: Courier has no internal leading, so we do likewise */
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if(!strcmp(face->family_name, "Wine Courier"))
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il = 0;
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if(FT_Load_Char(face, 'X', FT_LOAD_DEFAULT)) {
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fprintf(stderr, "Can't find X\n");
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exit(0);
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}
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avg_width = face->glyph->metrics.horiAdvance >> 6;
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first_char = FT_Get_First_Char(face, &gi);
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if(first_char == 0xd) /* fontforge's first glyph is 0xd, we'll catch this and skip it */
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first_char = FT_Get_Next_Char(face, first_char, &gi);
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dfCharTable = malloc((255 + 3) * sizeof(*dfCharTable));
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memset(&fi, 0, sizeof(fi));
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fi.dfFirstChar = first_char;
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fi.dfLastChar = 0xff;
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start += ((unsigned char)fi.dfLastChar - (unsigned char)fi.dfFirstChar + 3 ) * sizeof(*dfCharTable);
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num_names = FT_Get_Sfnt_Name_Count(face);
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for(i = 0; i <num_names; i++) {
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FT_Get_Sfnt_Name(face, i, &sfntname);
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strncpy(namebuf, sfntname.string, sfntname.string_len);
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namebuf[sfntname.string_len] = '\0';
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if(sfntname.platform_id == 1 && sfntname.encoding_id == 0 && sfntname.language_id == 0 && sfntname.name_id == 0) {
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strncpy(hdr.dfCopyright, namebuf, 60);
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hdr.dfCopyright[59] = '\0';
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}
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}
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os2 = FT_Get_Sfnt_Table(face, ft_sfnt_os2);
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for(i = first_char; i < 0x100; i++) {
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gi = FT_Get_Char_Index(face, cptable->sbcs.cp2uni[i]);
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if(gi == 0)
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fprintf(stderr, "Missing glyph for char %04x\n", cptable->sbcs.cp2uni[i]);
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if(FT_Load_Char(face, cptable->sbcs.cp2uni[i], FT_LOAD_DEFAULT)) {
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fprintf(stderr, "error loading char %d - bad news!\n", i);
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continue;
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}
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dfCharTable[i].width = face->glyph->metrics.horiAdvance >> 6;
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dfCharTable[i].offset = start + (width_bytes * ppem);
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width_bytes += ((face->glyph->metrics.horiAdvance >> 6) + 7) >> 3;
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if(max_width < (face->glyph->metrics.horiAdvance >> 6))
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max_width = face->glyph->metrics.horiAdvance >> 6;
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}
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/* space */
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space_size = (ppem + 3) / 4;
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dfCharTable[i].width = space_size;
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dfCharTable[i].offset = start + (width_bytes * ppem);
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width_bytes += (space_size + 7) >> 3;
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/* sentinel */
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dfCharTable[++i].width = 0;
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dfCharTable[i].offset = start + (width_bytes * ppem);
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fi.dfType = 0;
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fi.dfPoints = ((ppem - il) * 72 + dpi/2) / dpi;
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fi.dfVertRes = dpi;
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fi.dfHorizRes = dpi;
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fi.dfAscent = ascent;
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fi.dfInternalLeading = il;
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fi.dfExternalLeading = 0;
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fi.dfItalic = (face->style_flags & FT_STYLE_FLAG_ITALIC) ? 1 : 0;
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fi.dfUnderline = 0;
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fi.dfStrikeOut = 0;
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fi.dfWeight = os2->usWeightClass;
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fi.dfCharSet = lookup_charset(enc);
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fi.dfPixWidth = (face->face_flags & FT_FACE_FLAG_FIXED_WIDTH) ?
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avg_width : 0;
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fi.dfPixHeight = ppem;
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fi.dfPitchAndFamily = FT_IS_FIXED_WIDTH(face) ? 0 : TMPF_FIXED_PITCH;
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switch(os2->panose[PAN_FAMILYTYPE_INDEX]) {
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case PAN_FAMILY_SCRIPT:
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fi.dfPitchAndFamily |= FF_SCRIPT;
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break;
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case PAN_FAMILY_DECORATIVE:
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case PAN_FAMILY_PICTORIAL:
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fi.dfPitchAndFamily |= FF_DECORATIVE;
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break;
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case PAN_FAMILY_TEXT_DISPLAY:
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if(fi.dfPitchAndFamily == 0) /* fixed */
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fi.dfPitchAndFamily = FF_MODERN;
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else {
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switch(os2->panose[PAN_SERIFSTYLE_INDEX]) {
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case PAN_SERIF_NORMAL_SANS:
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case PAN_SERIF_OBTUSE_SANS:
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case PAN_SERIF_PERP_SANS:
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fi.dfPitchAndFamily |= FF_SWISS;
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break;
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default:
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fi.dfPitchAndFamily |= FF_ROMAN;
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}
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}
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break;
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default:
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fi.dfPitchAndFamily |= FF_DONTCARE;
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}
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fi.dfAvgWidth = avg_width;
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fi.dfMaxWidth = max_width;
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fi.dfDefaultChar = def_char - fi.dfFirstChar;
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fi.dfBreakChar = ' ' - fi.dfFirstChar;
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fi.dfWidthBytes = (width_bytes + 1) & ~1;
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fi.dfFace = start + fi.dfWidthBytes * ppem;
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fi.dfBitsOffset = start;
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fi.dfFlags = 0x10; /* DFF_1COLOR */
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fi.dfFlags |= FT_IS_FIXED_WIDTH(face) ? 1 : 2; /* DFF_FIXED : DFF_PROPORTIONAL */
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hdr.dfVersion = 0x300;
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hdr.dfSize = start + fi.dfWidthBytes * ppem + strlen(face->family_name) + 1;
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fwrite(&hdr, sizeof(hdr), 1, fp);
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fwrite(&fi, sizeof(fi), 1, fp);
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fwrite(dfCharTable + fi.dfFirstChar, sizeof(*dfCharTable), ((unsigned char)fi.dfLastChar - (unsigned char)fi.dfFirstChar) + 3, fp);
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for(i = first_char; i < 0x100; i++) {
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if(FT_Load_Char(face, cptable->sbcs.cp2uni[i], FT_LOAD_DEFAULT)) {
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continue;
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}
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assert(dfCharTable[i].width == face->glyph->metrics.horiAdvance >> 6);
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for(x = 0; x < ((dfCharTable[i].width + 7) / 8); x++) {
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for(y = 0; y < ppem; y++) {
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if(y < ascent - face->glyph->bitmap_top ||
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y >= face->glyph->bitmap.rows + ascent - face->glyph->bitmap_top) {
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fputc('\0', fp);
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continue;
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}
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x_off = face->glyph->bitmap_left / 8;
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x_end = (face->glyph->bitmap_left + face->glyph->bitmap.width - 1) / 8;
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if(x < x_off || x > x_end) {
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fputc('\0', fp);
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continue;
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}
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if(x == x_off)
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left_byte = 0;
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else
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left_byte = face->glyph->bitmap.buffer[(y - (ascent - face->glyph->bitmap_top)) * face->glyph->bitmap.pitch + x - x_off - 1];
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/* On the last non-trival output byte (x == x_end) have we got one or two input bytes */
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if(x == x_end && (face->glyph->bitmap_left % 8 != 0) && ((face->glyph->bitmap.width % 8 == 0) || (x != (((face->glyph->bitmap.width) & ~0x7) + face->glyph->bitmap_left) / 8)))
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right_byte = 0;
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else
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right_byte = face->glyph->bitmap.buffer[(y - (ascent - face->glyph->bitmap_top)) * face->glyph->bitmap.pitch + x - x_off];
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byte = (left_byte << (8 - (face->glyph->bitmap_left & 7))) & 0xff;
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byte |= ((right_byte >> (face->glyph->bitmap_left & 7)) & 0xff);
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fputc(byte, fp);
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}
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}
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}
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for(x = 0; x < (space_size + 7) / 8; x++) {
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for(y = 0; y < ppem; y++)
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fputc('\0', fp);
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}
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if(width_bytes & 1) {
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for(y = 0; y < ppem; y++)
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fputc('\0', fp);
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}
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fprintf(fp, "%s", face->family_name);
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fputc('\0', fp);
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}
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int main(int argc, char **argv)
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{
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int ppem, enc;
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FT_Face face;
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FT_Library lib;
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int dpi;
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unsigned int def_char;
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FILE *fp;
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char output[256];
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char name[256];
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char *cp;
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if(argc != 6) {
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usage(argv);
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exit(0);
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}
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ppem = atoi(argv[2]);
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enc = atoi(argv[3]);
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dpi = atoi(argv[4]);
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def_char = atoi(argv[5]);
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if(FT_Init_FreeType(&lib)) {
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fprintf(stderr, "ft init failure\n");
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exit(0);
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}
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if(FT_New_Face(lib, argv[1], 0, &face)) {
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fprintf(stderr, "Can't open face\n");
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usage(argv);
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exit(0);
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}
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if(FT_Set_Pixel_Sizes(face, ppem, ppem)) {
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fprintf(stderr, "Can't set size\n");
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usage(argv);
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exit(0);
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}
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strcpy(name, face->family_name);
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/* FIXME: should add a -o option instead */
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for(cp = name; *cp; cp++)
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{
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if(*cp == ' ') *cp = '_';
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else if (*cp >= 'A' && *cp <= 'Z') *cp += 'a' - 'A';
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}
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sprintf(output, "%s-%d-%d-%d.fnt", name, enc, dpi, ppem);
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fp = fopen(output, "w");
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fill_fontinfo(face, enc, fp, dpi, def_char);
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fclose(fp);
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exit(0);
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}
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#else /* HAVE_FREETYPE */
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int main(int argc, char **argv)
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{
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fprintf( stderr, "%s needs to be built with Freetype support\n", argv[0] );
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exit(1);
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}
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#endif /* HAVE_FREETYPE */
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