From 4291a684d86dbd80880503d12e4a1f8db3a41579 Mon Sep 17 00:00:00 2001 From: Mikko Rasa Date: Fri, 15 Oct 2004 13:52:29 +0300 Subject: [PATCH 1/1] Version 0.1 --- Makefile | 12 ++ Readme | 26 +++++ gpl.txt | 340 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ ttf2png.c | 241 ++++++++++++++++++++++++++++++++++++++ 4 files changed, 619 insertions(+) create mode 100644 Makefile create mode 100644 Readme create mode 100644 gpl.txt create mode 100644 ttf2png.c diff --git a/Makefile b/Makefile new file mode 100644 index 0000000..57bb3e9 --- /dev/null +++ b/Makefile @@ -0,0 +1,12 @@ +ttf2png: ttf2png.c + gcc -Wall $^ -o $@ $(shell freetype-config --cflags --libs) $(shell pkg-config --cflags --libs libpng12) + +.PHONY: tarball +tarball: ttf2png-0.1.tar.gz +ttf2png-0.1.tar.gz: ttf2png.c Readme Makefile gpl.txt + rm -rf ttf2png-0.1 + mkdir ttf2png-0.1 + cp -a $^ ttf2png-0.1 + tar -czf $@ ttf2png-0.1 + rm -rf ttf2png-0.1 + diff --git a/Readme b/Readme new file mode 100644 index 0000000..bbd8b59 --- /dev/null +++ b/Readme @@ -0,0 +1,26 @@ +ttf2png - True Type Font to PNG converter +Copyright (c) 2004 Mikkosoft Productions + + +Software requirements + +FreeType 2 +libpng 1.2 +C compiler (preferably GCC) + + +License + +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. diff --git a/gpl.txt b/gpl.txt new file mode 100644 index 0000000..5b6e7c6 --- /dev/null +++ b/gpl.txt @@ -0,0 +1,340 @@ + GNU GENERAL PUBLIC LICENSE + Version 2, June 1991 + + Copyright (C) 1989, 1991 Free Software Foundation, Inc. + 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The licenses for most software are designed to take away your +freedom to share and change it. By contrast, the GNU General Public +License is intended to guarantee your freedom to share and change free +software--to make sure the software is free for all its users. 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If this is what you want to do, use the GNU Library General +Public License instead of this License. diff --git a/ttf2png.c b/ttf2png.c new file mode 100644 index 0000000..97be0f1 --- /dev/null +++ b/ttf2png.c @@ -0,0 +1,241 @@ +/* +ttf2png - True Type Font to PNG converter +Copyright (c) 2004 Mikkosoft Productions + +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 +#include +#include +#include +#include +#include FT_FREETYPE_H + +void usage(); +int save_png(char *, char *, int, int); + +int main(int argc, char **argv) +{ + FT_Library freetype; + FT_Face face; + int err; + int o; + int begin=0; + int end=255; + char *fn; + int size=10; + int cpl=16; + int w,h; + int i; + char *data; + int ch,cw; + int cell=16; + int ascent; + char *out="font.png"; + char verbose=0; + const char *name; + char autohinter=0; + int count; + + if(argc<2) + { + usage(); + return 1; + } + + while((o=getopt(argc,argv,"r:s:l:c:o:avh?"))!=-1) + { + char *ptr; + int temp; + switch(o) + { + case 'r': + if(!isdigit(optarg[0])) temp=-1; + else + { + temp=strtol(optarg,&ptr,0); + if(ptr[0]!=',' || !isdigit(ptr[1])) temp=-1; + } + if(temp<0) + printf("Not a valid range: %s\n",optarg); + else + { + begin=temp; + end=strtol(ptr+1,NULL,0); + } + break; + case 's': + size=strtol(optarg,NULL,0); + break; + case 'l': + cpl=strtol(optarg,NULL,0); + break; + case 'c': + cell=strtol(optarg,NULL,0); + break; + case 'o': + out=optarg; + break; + case 'a': + autohinter=1; + break; + case 'v': + verbose=1; + break; + case 'h': + case '?': + usage(); + return 0; + } + } + + if(optind>=argc) + { + usage(); + return 1; + } + fn=argv[optind]; + + err=FT_Init_FreeType(&freetype); + if(err) + { + fprintf(stderr,"Couldn't initialize FreeType library\n"); + return 1; + } + + err=FT_New_Face(freetype,fn,0,&face); + if(err) + { + fprintf(stderr,"Couldn't load font file\n"); + if(err==FT_Err_Unknown_File_Format) + fprintf(stderr,"Unknown file format\n"); + return 1; + } + + name=FT_Get_Postscript_Name(face); + if(verbose) printf("Font name: %s\n",name); + + err=FT_Set_Pixel_Sizes(face,0,size); + if(err) + { + fprintf(stderr,"Couldn't set size\n"); + return 1; + } + ascent=face->size->metrics.ascender/64; + ch=(face->size->metrics.ascender-face->size->metrics.descender)/64; + cw=face->size->metrics.max_advance/64; + if(verbose) + { + printf("Ascent %d\n",ascent); + printf("Descent %ld\n",face->size->metrics.descender/64); + printf("Height %d\n",ch); + printf("Width %d\n",cw); + } + if(ch>cell || cw>cell) fprintf(stderr,"ttf2png: Warning: character size exceeds cell size\n"); + + w=cpl*cell; + h=(end-begin+cpl-1)/cpl*cell; + data=(char *)malloc(w*h); + memset(data,255,w*h); + + count=0; + for(i=begin;i<=end;++i) + { + int glyph=FT_Get_Char_Index(face,i); + FT_Bitmap *bmp=&face->glyph->bitmap; + int x,y; + int cx=(i%cpl)*cell+(cell-cw)/2; + int cy=(i/cpl)*cell; + int flags=0; + if(!glyph) continue; + fflush(stdout); + if(autohinter) flags|=FT_LOAD_FORCE_AUTOHINT; + FT_Load_Glyph(face,glyph,flags); + FT_Render_Glyph(face->glyph,FT_RENDER_MODE_NORMAL); + cx+=face->glyph->bitmap_left; + cy+=ascent-face->glyph->bitmap_top; + for(y=0;yrows;++y) for(x=0;xwidth;++x) + { + if(cx+x<0 || cx+x>=w || cy+y<0 || cy+y>=h) continue; + if(bmp->pitch>0) + data[cx+x+(cy+y)*w]=255-bmp->buffer[x+y*bmp->pitch]; + } + ++count; + } + + save_png(out,data,w,h); + + if(verbose) printf("Converted %d glyphs\n",count); + + return 0; +} + +void usage() +{ + printf("ttf2png - True Type Font to PNG converter\n" + "Copyright (c) 2004 Mikkosoft Productions\n" + "Distributed under the GNU General Public License\n\n" + "Usage: ttf2png [options] \n\n" + "Accepted options (default values in [brackets])\n" + " -r Range of characters to convert in the format low,high [0,255]\n" + " -s Font size to use, in pixels [10]\n" + " -l Number of characters to put in one line [16]\n" + " -c Character cell size, in pixels [16]\n" + " -o Output file name [font.png]\n" + " -a Force autohinter\n" + " -v Enable verbose mode\n" + " -h Print this message\n"); +} + +int save_png(char *fn, char *data, int w, int h) +{ + FILE *out; + png_struct *pngs; + png_info *pngi; + png_byte *rows[h]; + int i; + + out=fopen(fn,"wb"); + if(!out) + { + fprintf(stderr,"Couldn't open output file\n"); + return -1; + } + + pngs=png_create_write_struct(PNG_LIBPNG_VER_STRING,NULL,NULL,NULL); + if(!pngs) + { + fprintf(stderr,"Error writing PNG file\n"); + return -1; + } + pngi=png_create_info_struct(pngs); + if(!pngi) + { + png_destroy_write_struct(&pngs,NULL); + fprintf(stderr,"Error writing PNG file\n"); + return -1; + } + + png_init_io(pngs,out); + png_set_IHDR(pngs,pngi,w,h,8,PNG_COLOR_TYPE_GRAY,PNG_INTERLACE_NONE,PNG_COMPRESSION_TYPE_DEFAULT,PNG_FILTER_TYPE_DEFAULT); + for(i=0;i