用freetype2显示ascii-art中文

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#include <ft2build.h>
#include FT_FREETYPE_H

int main(int argc, char **argv){
int psize;
FT_Library library;
FT_Face face;
unsigned int ucode;
FT_UInt glyph_index;
int row, pixel;

if(argc != 4){
    return 10;
}

ucode = strtol(argv[2], NULL, 16);
psize = strtol(argv[3], NULL, 10);

printf("unicode +%X size %d/n", ucode, psize);
if(FT_Init_FreeType(&library)
|| FT_New_Face(library,
                    argv[1],
                    0,
                    &face)
     || FT_Set_Pixel_Sizes(face,
psize,
                           0)){
    return 1;
}

glyph_index = FT_Get_Char_Index(face, ucode);
if(glyph_index == 0){
    return 2;
}
if(FT_Load_Glyph(face,
                   glyph_index,
                   FT_LOAD_DEFAULT)){
    return 3;
}
if(FT_Render_Glyph(face->glyph,
                     FT_RENDER_MODE_MONO)){
    return 4;
}
printf("bitmap_left=%d/n"
         "bitmap_top=%d/n"
         "bitmap.rows=%d/n"
         "bitmap.width=%d/n"
         "bitmap.pitch=%d/n"
         "bitmap.pixel_mode=%d/n",
         face->glyph->bitmap_left,
         face->glyph->bitmap_top,
         face->glyph->bitmap.rows,
         face->glyph->bitmap.width,
         face->glyph->bitmap.pitch,
         face->glyph->bitmap.pixel_mode);
printf("/n/n");
for(row = 0;
      row < (face->glyph->bitmap.rows - face->glyph->bitmap_top);
      ++row){
      for(pixel = 0; pixel < face->glyph->bitmap.width; ++pixel){
        printf("_");
      }
      printf("/n");
}
for(row = 0; row < face->glyph->bitmap.rows; ++row){
    for(pixel = 0; pixel < face->glyph->bitmap_left; ++pixel)
      printf("_");
    for(pixel = 0; pixel < face->glyph->bitmap.width; ++pixel){
      printf("%c", (face->glyph->bitmap.buffer
                    [row * face->glyph->bitmap.pitch +
                     pixel/8] & (0xC0 >> (pixel % 8)))?'O':'_');
    }
    printf("/n");
}
return 0;
}

转自 http://www.cublog.cn/u/8057/showart_335549.html