✨ MarlinUI for Ender 3 v2 DWIN LCD (#22594)

Co-Authored-By: Taylor Talkington <taylor.talkington@gmail.com>

buildroot/share/fonts/buildhzk.py

@@ -0,0 +1,64 @@
+# Generate a 'HZK' font file for the T5UIC1 DWIN LCD
+# from multiple bdf font files.
+# Note: the 16x16 glyphs are not produced
+# Author: Taylor Talkington
+# License: GPL
+
+import bdflib.reader
+import math
+
+def glyph_bits(size_x, size_y, font, glyph_ord):
+    asc = font[b'FONT_ASCENT']
+    desc = font[b'FONT_DESCENT']
+    bits = [0 for y in range(size_y)]
+
+    glyph_bytes = math.ceil(size_x / 8)
+    try:
+        glyph = font[glyph_ord]
+        for y, row in enumerate(glyph.data):
+            v = row
+            rpad = size_x - glyph.bbW
+            if rpad < 0: rpad = 0
+            if glyph.bbW > size_x: v = v >> (glyph.bbW - size_x) # some glyphs are actually too wide to fit!
+            v = v << (glyph_bytes * 8) - size_x + rpad
+            v = v >> glyph.bbX
+            bits[y + desc + glyph.bbY] |= v
+    except KeyError:
+        pass
+
+    bits.reverse()
+    return bits
+
+def marlin_font_hzk():
+    fonts = [
+        [6,12,'marlin-6x12-3.bdf'],
+        [8,16,'marlin-8x16.bdf'],
+        [10,20,'marlin-10x20.bdf'],
+        [12,24,'marlin-12x24.bdf'],
+        [14,28,'marlin-14x28.bdf'],
+        [16,32,'marlin-16x32.bdf'],
+        [20,40,'marlin-20x40.bdf'],
+        [24,48,'marlin-24x48.bdf'],
+        [28,56,'marlin-28x56.bdf'],
+        [32,64,'marlin-32x64.bdf']
+    ]
+
+    with open('marlin_fixed.hzk','wb') as output:
+        for f in fonts:
+            with open(f[2], 'rb') as file:
+                print(f'{f[0]}x{f[1]}')
+                font = bdflib.reader.read_bdf(file)
+                for glyph in range(128):
+                    bits = glyph_bits(f[0], f[1], font, glyph)
+                    glyph_bytes = math.ceil(f[0]/8)
+
+                    for b in bits:
+                        try:
+                            z = b.to_bytes(glyph_bytes, 'big')
+                            output.write(z)
+                        except OverflowError:
+                            print('Overflow')
+                            print(f'{glyph}')
+                            print(font[glyph])
+                            for b in bits: print(f'{b:0{f[0]}b}')
+                            return