#include <stdio.h>
#include <stdlib.h>

#include <ft2build.h>
#include FT_FREETYPE_H

static const char * SCALE = " .:-=+*%#@";
static const char * FONT = "/usr/share/fonts/TTF/DejaVuSans.ttf";


int main(int argc, char * argv[]) {
	if(argc<1) return 1;
	char letter = argv[1][0];
	FT_UInt height = 16;
	if(argc>2) height = atoi(argv[2]);
	FT_Library library;
	FT_Error error;
	error = FT_Init_FreeType(&library);
	if(error) return 2;
	FT_Face face;
	error = FT_New_Face(library, FONT, 0, &face);
	if(error) return 3;
	error = FT_Set_Pixel_Sizes(face, 0, height);
	if(error) return 4;
	FT_UInt index = FT_Get_Char_Index(face, letter);
	error = FT_Load_Glyph(face, index, FT_LOAD_DEFAULT);
	if(error) return 5;
	FT_GlyphSlot slot = face->glyph;
	error = FT_Render_Glyph(slot, FT_RENDER_MODE_NORMAL);
	if(error) return 6;
	printf("%d x %d\n", slot->bitmap.width, slot->bitmap.rows);
	for(unsigned y = 0; y < slot->bitmap.rows; ++y) {
		for(unsigned x = 0; x < slot->bitmap.width; ++x) {
			unsigned char value = slot->bitmap.buffer[y*slot->bitmap.pitch+x];
			value /= 28.33;
			putchar(SCALE[value]);
		}
		printf("\n");
	}
	error = FT_Done_Face(face);
	if(error) return 7;
	error = FT_Done_FreeType(library);
	if(error) return 8;
}