Add ESP8226 client

2024-07-18 19:35:56 +02:00
parent e57966523e
commit 695f05e2ef
5 changed files with 266 additions and 0 deletions
@@ -0,0 +1,45 @@
+#!/usr/bin/env python3
+
+
+import sys
+
+from PIL import Image
+from pathlib import Path
+
+def get_bit(im, x, y):
+    px = im.getpixel((x, y))
+
+    if px == 0 or px == (0, 0, 0, 255):
+        return 0
+    if px == 1 or px == (255, 255, 255, 255):
+        return 1
+    print(x, y)
+    print(px)
+    raise
+
+def generate_bitmap_from_gif(file: Path, fd):
+    variable_name = file.with_suffix("").name
+
+    im = Image.open(file)
+    (w, h) = im.size
+
+    assert w % 8 == 0
+
+    fd.write(f"static const uint16_t PROGMEM {variable_name}_dims[] = {{{w}, {h}, {im.n_frames}}};\n")
+    fd.write(f"static const uint8_t PROGMEM {variable_name}[][{w * h // 8}] = {{\n")
+    for i in range(im.n_frames):
+        im.seek(i)
+        fd.write("  {\n")
+        for y in range(h):
+            line = []
+            for x in range(0, w, 8):
+                byte_str = "".join(str(get_bit(im, x + i, y)) for i in range(8))
+                byte = int(byte_str, 2)
+                line.append(f"0x{byte:02x}")
+            line_str = ", ".join(line)
+            fd.write(f"    {line_str},\n")
+        fd.write("  },\n")
+    fd.write("};\n")
+
+if __name__ == "__main__":
+    generate_bitmap_from_gif(Path("./animations/spinny.gif"), sys.stdout)