manual converter

artwork/st_to_xl_font_conv.py

@@ -0,0 +1,42 @@
+import argparse
+from PIL import Image
+import random
+
+class AtariFont:
+    """representation of Atari 8-bit font as a list 128 characters, each character is a 8 bytes long list"""
+    def __init__(self):
+        self.font = [[0, 0, 255, 0, 0, 0xaa, 1, 0] for _ in range(128)]
+
+    def to_image(self) -> Image:
+        fnt_img = Image.new("1", (32 * 8, 4 * 8))
+        i = 0
+        for x in range(32):
+            for y in range(4):
+                for y_offset, v in enumerate(self.font[i]):
+                    for b in range(8):
+                        c = (v & (1 << b)) >> b
+                        pos = (x * 8 + b, y * 8 + y_offset)
+                        fnt_img.putpixel(pos, c)
+                i += 1
+        return fnt_img
+
+
+def convert_st(im: Image):
+    print(im.format, im.size, im.mode)
+    im.convert('1')
+    print(im.format, im.size, im.mode)
+
+
+if __name__ == '__main__':
+    parser = argparse.ArgumentParser(description="Convert AtariST 128x256 font image to Atari 8-bit fnt file(s) ")
+    parser.add_argument('--file', '-f', dest='file', type=str, required=True,
+                        help="AtariST picture file")
+    args = parser.parse_args()
+
+    st = Image.open(args.file)
+    convert_st(st)
+    a = AtariFont()
+    a.to_image().save("test.bmp")
+
+
+