from PIL import Image

def generate_bitmap(input_path, output_path):
    # 1. Resize to 90x90
    img = Image.open(input_path).convert('1').resize((90, 90))
    width, height = img.size 
    
    # Calculate bytes per row (90 pixels needs 12 bytes)
    bytes_per_row = (width + 7) // 8  
    bitmap = bytearray(bytes_per_row * height) # 1080 bytes total

    for y in range(height):
        for x in range(width):
            if img.getpixel((x, y)) == 0: # 0 is black
                byte_idx = y * bytes_per_row + (x // 8)
                bit_idx = 7 - (x % 8)
                bitmap[byte_idx] |= (1 << bit_idx)

    with open(output_path, "wb") as f:
        f.write(bitmap)
        print(f"Created {output_path} with size: {len(bitmap)} bytes")

generate_bitmap("logo.png", "./data/logo.bin")