Import Upstream version 1.3.0~svn316
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/*
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This file is part of g15tools.
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g15tools is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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g15tools 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
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with libg15render; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "config.h"
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#include "libg15render.h"
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#include <sys/types.h>
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#include <fcntl.h>
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#include <unistd.h>
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#ifdef TTF_SUPPORT
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#include <ft2build.h>
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#include FT_FREETYPE_H
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#include FT_BITMAP_H
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#endif
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#ifndef TTF_SUPPORT /* No truetype support */
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int main(char *argv) {
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printf("g15fontconvert - libg15render has no FreeType support compiled in. This is required for the conversion program. Leaving now.\n");
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return -1;
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}
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#else /* TrueType Support */
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void packpixel(unsigned char *buffer, int width, int x, int y,int colour) {
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if(x<0) x=0;
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if(y<0) y=0;
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unsigned char c = 0x80 >> (x % 8);
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if(colour)
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buffer[width * y + (x / 8)] |= c;
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}
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FT_Library lib;
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int convertG15Font(char *inFilename, char *oFilename, int size, int gap){
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FT_Face face;
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FT_GlyphSlot glyphslot;
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g15font *font = NULL;
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int i;
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int retval;
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retval = FT_New_Face(lib, inFilename, 0, &face);
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if(retval== FT_Err_Unknown_File_Format){
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return -1;
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}
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else if(retval) {
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return -1;
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}
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glyphslot = face->glyph;
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if(FT_IS_SCALABLE(face)) {
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FT_Set_Char_Size(face, 0, size << 6, 80, 0);
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}else {
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printf("Bitmap Font has fixed height, ignoring requested size\n");
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}
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font = malloc(sizeof(g15font));
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font->font_height = (face->size->metrics.ascender >> 6) - (face->size->metrics.descender >> 6);
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font->ascender_height = face->size->metrics.ascender >> 6;
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font->lineheight = face->size->metrics.height >> 6;
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if(gap>-1)
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font->default_gap = gap;
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else
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font->default_gap = 1;
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if(font->font_height==0) {
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font->font_height = 2+(face->available_sizes->y_ppem>>6); /* */
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printf("Font height unknown, guessing %i.\n",font->font_height - 1);
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}
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if(font->ascender_height==0) {
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font->ascender_height = font->font_height;
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face->size->metrics.ascender = font->font_height<<6;
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printf("modded ascender to %i\n", (int)face->size->metrics.ascender>>6);
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}
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if(face->size->metrics.descender==0) {
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face->size->metrics.descender = (font->font_height<<6) - (face->available_sizes->size) ;
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printf("modded descender to %i\n",(int)face->size->metrics.descender>>6);
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font->font_height = (face->size->metrics.ascender >> 6) + (face->size->metrics.descender >> 6);
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}
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if(font->lineheight==0) {
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printf("modded lineheight\n");
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font->lineheight=font->font_height;
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}
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printf("Converting\n");
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for(i=0;i<256;i++) {
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unsigned int glyph_index = FT_Get_Char_Index(face,i);
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retval = FT_Load_Glyph(face, glyph_index, FT_LOAD_DEFAULT|FT_LOAD_TARGET_MONO|FT_LOAD_NO_BITMAP);
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glyphslot = face->glyph;
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retval = FT_Render_Glyph(glyphslot, FT_RENDER_MODE_MONO);
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if(retval==0) {
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if(glyph_index>0)
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font->active[i]=1;
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else
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font->active[i]=0;
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int char_x, char_y;
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if(glyphslot->bitmap.width==0)
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glyphslot->bitmap.width = glyphslot->advance.x >> 6;
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font->glyph[i].width = glyphslot->bitmap.width;
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font->glyph[i].buffer = malloc(glyphslot->bitmap.width*font->font_height);
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memset(font->glyph[i].buffer,0,glyphslot->bitmap.width*font->font_height);
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unsigned char * bufPtr = glyphslot->bitmap.buffer;
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for ( char_y = 0; char_y < glyphslot->bitmap.rows; char_y++)
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{
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char y=(face->size->metrics.ascender >> 6) - (face->glyph->metrics.horiBearingY >> 6);
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for ( char_x = 0; char_x < glyphslot->bitmap.width; char_x++)
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{
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if((bufPtr[char_x / 8] >> (7 - char_x % 8)) & 1)
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packpixel(font->glyph[i].buffer,(glyphslot->bitmap.width+7)/8, char_x,char_y+y,1);
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}
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bufPtr += glyphslot->bitmap.pitch;
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}
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}
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}
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FT_Done_Face(face);
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if(g15r_saveG15Font(oFilename,font)<0) {
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printf("Problem saving font\n");
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return -1;
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}
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printf("Font saved to %s\n",oFilename);
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g15r_deleteG15Font(font);
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return 0;
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}
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void helptext() {
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printf("g15fontconvert - (c) 2008 The G15Tools project\n");
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printf(" -h\t--help\t\t\tThis helptext\n");
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printf(" -s\t--size [size]\t\tSpecify size in pixels of desired font (default 10pixels high)\n");
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printf(" -g\t--gap [gap]\t\tSpecify gap in pixels between characters (default 1pixel)\n");
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printf(" -i\t--infile [filename]\tFilename of font to convert\n");
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printf(" -o\t--outfile [filename]\tname of file to write (default to [infile].fnt\n");
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exit(0);
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}
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int main(int argc, char **argv) {
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int i;
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int size = 10;
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int gap = -1;
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int have_infile=0;
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int have_outfile=0;
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char infile[128];
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char outfile[128];
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FT_Init_FreeType(&lib);
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if(argc<2)
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helptext();
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for (i=0;i<argc;i++) {
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if(0==strncasecmp((char*)argv[i],"-h",2) || 0==strncasecmp((char*)argv[i],"--help",6)){
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helptext();
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}
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if(0==strncasecmp((char*)argv[i],"-s",2) || 0==strncasecmp((char*)argv[i],"--size",6)){
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if(argv[i+1]!=NULL) {
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sscanf(argv[++i],"%i",&size);
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}
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}
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if(0==strncasecmp((char*)argv[i],"-g",2) || 0==strncasecmp((char*)argv[i],"--gap",5)){
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if(argv[i+1]!=NULL) {
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sscanf(argv[++i],"%i",&gap);
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}
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}
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if(0==strncasecmp((char*)argv[i],"-i",2) || 0==strncasecmp((char*)argv[i],"--infile",8)){
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if(argv[i+1]!=NULL) {
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strncpy(infile,argv[++i],127);
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have_infile=1;
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}
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}
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if(0==strncasecmp((char*)argv[i],"-o",2) || 0==strncasecmp((char*)argv[i],"--outfile",9)){
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if(argv[i+1]!=NULL) {
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strncpy(outfile,argv[++i],127);
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have_outfile=1;
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}
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}
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}
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if(!have_infile)
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helptext();
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if(!have_outfile)
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snprintf(outfile,128,"%s.fnt",infile);
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if(0!=strncasecmp(".fnt",outfile+(strlen(outfile)-4),4))
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strncat(outfile,".fnt",128);
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if(access(infile,O_RDONLY)!=0) {
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printf("g15fontconvert encountered an error:\n");
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printf("Unable to open %s. Please check the filename and try again.\n",infile);
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exit(1);
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}
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printf("converting %s\n",infile);
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if(convertG15Font(infile, outfile, size,gap)<0)
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printf("problem saving font %s..\n",outfile);
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else
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printf("Done.\n");
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FT_Done_FreeType(lib);
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return 0;
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}
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#endif /* Truetype support */
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