test in progress

tools/img/image-to-mem.py

@@ -0,0 +1,33 @@
+#!/usr/bin/env python
+
+# vim: set ai et ts=4 sw=4:
+
+from PIL import Image
+import sys
+import os
+
+if len(sys.argv) < 2:
+    print("Usage: {} <image-file>".format(sys.argv[0]))
+    sys.exit(1)
+
+fname = sys.argv[1]
+
+img = Image.open(fname)
+""" if img.width != 160 or img.height != 128:
+    print("Error: 160x128 image expected");
+    sys.exit(2) """
+
+print("const uint16_t test_img[][160] = {");
+
+for y in range(0, img.height):
+    s = "{"
+    for x in range(0, img.width):
+        (r, g, b) = img.getpixel( (x, y) )
+        color565 = ((r & 0xF8) << 8) | ((g & 0xFC) << 3) | ((b & 0xF8) >> 3)
+        # for right endiness, so ST7735_DrawImage would work
+        color565 = ((color565 & 0xFF00) >> 8) | ((color565 & 0xFF) << 8)
+        s += "0x{:04X},".format(color565)
+    s += "},"
+    print(s)
+
+print("};")