#include "font.h"
#include <stdio.h>
#include <string.h>
#include <tiffio.h>

int main(void) {
	char strings[5][26] = {
		"ABCDEFGHIJKLMNOPQRSTUVWXYZ",
		"abcdefghijklmnopqrstuvwxyz",
		"0123456789 +- !?.,:='     ",
		"                          ",
		" Hello, World!   1-2+3=2  ",
	};
	
	int w = 26 * 6 + 20;
	int h = 5  * 6 + 20; 
	uint8_t img[h][w];
	memset(&img, 0, sizeof(img));

	for (int line = 0; line < 5; line++) {
		for (int chr = 0; chr < 26; chr++) {
			const uint8_t* sym = fnt_get_sym(strings[line][chr]);
			if (!sym) continue;
			
			for (int byte = 0; byte < 5; byte++) {
				uint8_t data = sym[byte];
				for (int bit = 0; bit < 6; bit++) {
					uint8_t pix = (data << bit) & 0b100000;
					img[line*6 + byte + 10][chr*6 + bit + 10] = pix?255:0;
				}
			}
		}
	}
		
    char* filename = "demo.tif";
    TIFF* image = TIFFOpen(filename, "w");
    // Setup
    TIFFSetField(image, TIFFTAG_IMAGEWIDTH, w);
    TIFFSetField(image, TIFFTAG_IMAGELENGTH, h);
    TIFFSetField(image, TIFFTAG_BITSPERSAMPLE, 8);
    TIFFSetField(image, TIFFTAG_ROWSPERSTRIP, 1);
    TIFFSetField(image, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_MINISBLACK);
    TIFFSetField(image, TIFFTAG_SAMPLESPERPIXEL, 1);
    // Write pixels
    for (int y = 0; y < h; y++) TIFFWriteScanline(image, img[y], y, 0);
    // Clean up
	TIFFClose(image);
    printf("All done! Output is in '%s'\n", filename);
	return 0;
}