From 1571d11322d8d9b04fb7052c2e053292b5fc0ec2 Mon Sep 17 00:00:00 2001
From: Zeilenschubser <zeilenschubser@gmail.com>
Date: Sun, 28 Dec 2025 17:20:12 +0100
Subject: [PATCH] animation converter v1

---
 anim.py | 93 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 93 insertions(+)
 create mode 100644 anim.py

diff --git a/anim.py b/anim.py
new file mode 100644
index 0000000..dbe803d
--- /dev/null
+++ b/anim.py
@@ -0,0 +1,93 @@
+from PIL import Image
+STATIC = 1
+ANIMATION = 2
+
+startx, starty = 16,25
+
+image_on = Image.open("file_on_m.bmp")
+image_off = Image.open("file_off_m.bmp")
+# im = image.convert(mode='')
+# im_pixels = im.load()
+# # access pixels via [x, y]
+# for col in range(im.size[0]):
+#     for row in range(im.size[1]):
+#         brightness = sum(im_pixels[col, row])
+#         if brightness < 255*2:
+#             im_pixels[col, row] = (0, 0, 0)
+#         else:
+#             im_pixels[col, row] = (255,255,255)
+# im.save('file_on_m.bmp')
+
+
+def bmp_to_bitmap_fn(im):
+  def fn(img):
+    x = [xc if sum(im.getpixel((xc,yc))) == 0 else None for xc in range(im.size[0]) for yc in range(im.size[1])]
+    y = [yc if sum(im.getpixel((xc,yc))) == 0 else None for xc in range(im.size[0]) for yc in range(im.size[1])]
+    x = list(filter(lambda x: x!=None, x))
+    y = list(filter(lambda y: y!=None, y))
+    xmin, xmax = min(x), max(x)
+    ymin, ymax = min(y), max(y)
+    # print(xmin, xmax, ymin, ymax)
+    xsize = (xmax-xmin)
+    ysize = (ymax-ymin)
+    print(len(img))
+    for y in range(ysize):
+      for x in range(0,xsize):
+          # print(xmin+x+bit, ymin+y)
+          if im.size[0] >= x and sum(im.getpixel((xmin+x,ymin+y))) == 0:
+            # print( im.size[0], x,x+bit, (xmin+x+bit,ymin+y))
+            pos = ((y * xsize) + x) // 8
+            bit = ((y * xsize) + x) % 8
+            print(pos, 1<<bit)
+            if pos < len(img):
+              img[pos] |= 1 << bit
+    return img, xsize, ysize
+  return fn
+
+PNG_file_OFF = bmp_to_bitmap_fn(image_off)
+PNG_file_ON = bmp_to_bitmap_fn(image_on)
+
+
+with open("animation.bin", "wb") as fx:
+  #
+  fx.write(bytearray([0x42,0x4e,0x17,0xee])) #magic header
+  fx.write(bytearray([2])) # objecets
+
+  fx.write(bytearray([STATIC, 0,0]))
+  fx.write(bytearray([120,60]))
+  fx.write(bytearray([0]*((120*60+7)//8)))
+
+
+  fx.write(bytearray([ANIMATION, startx, starty])) # we start at 0,0 for now
+  # print(PNG_file_OFF([0]*120*60)[1],PNG_file_OFF([0]*120*60)[2])
+  # print(PNG_file_ON([0]*120*60)[1],PNG_file_ON([0]*120*60)[2])
+  ww, hh = 100, 10
+  uu = 3# update interval, 0 every tick, 1 every second tick
+  animation = [
+    PNG_file_OFF,
+    PNG_file_OFF,
+    PNG_file_OFF,
+    PNG_file_OFF,
+    PNG_file_OFF,
+    PNG_file_OFF,
+    PNG_file_OFF,
+    PNG_file_OFF,
+    PNG_file_OFF,
+    PNG_file_OFF,
+    PNG_file_OFF,
+    PNG_file_OFF,
+    PNG_file_OFF,
+    PNG_file_OFF,
+    PNG_file_ON,
+  ]
+  fx.write(bytearray([ww,hh,len(animation),uu]))
+  for bmp_fun in animation:
+    img = bytearray([0]*((ww*hh+7)//8))
+    img,xsize,ysize = bmp_fun(img)
+
+    print("framestart=",fx.tell())
+    fx.write(img)
+    print("frameend=",fx.tell())
+
+  print("size:", fx.tell())
+  assert fx.tell() < 50000, "do not use too much image space"
\ No newline at end of file