buildroot/share/scripts/gen-tft-image.py

   1 #!/usr/bin/env python3
   2 #
   3 # Marlin 3D Printer Firmware
   4 # Copyright (c) 2021 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
   5 #
   6 # Based on Sprinter and grbl.
   7 # Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
   8 #
   9 # This program is free software: you can redistribute it and/or modify
  10 # it under the terms of the GNU General Public License as published by
  11 # the Free Software Foundation, either version 3 of the License, or
  12 # (at your option) any later version.
  13 #
  14 # This program is distributed in the hope that it will be useful,
  15 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 # GNU General Public License for more details.
  18 #
  19 # You should have received a copy of the GNU General Public License
  20 # along with this program.  If not, see <https://www.gnu.org/licenses/>.
  21 #
  22
  23 # Generate Marlin TFT Images from bitmaps/PNG/JPG
  24
  25 import sys,re,struct
  26 from PIL import Image,ImageDraw
  27
  28 def image2bin(image, output_file):
  29     if output_file.endswith(('.c', '.cpp')):
  30         f = open(output_file, 'wt')
  31         is_cpp = True
  32         f.write("const uint16_t image[%d] = {\n" % (image.size[1] * image.size[0]))
  33     else:
  34         f = open(output_file, 'wb')
  35         is_cpp = False
  36     pixs = image.load()
  37     for y in range(image.size[1]):
  38         for x in range(image.size[0]):
  39             R = pixs[x, y][0] >> 3
  40             G = pixs[x, y][1] >> 2
  41             B = pixs[x, y][2] >> 3
  42             rgb = (R << 11) | (G << 5) | B
  43             if is_cpp:
  44                 strHex = '0x{0:04X}, '.format(rgb)
  45                 f.write(strHex)
  46             else:
  47                 f.write(struct.pack("B", (rgb & 0xFF)))
  48                 f.write(struct.pack("B", (rgb >> 8) & 0xFF))
  49         if is_cpp:
  50             f.write("\n")
  51     if is_cpp:
  52         f.write("};\n")
  53     f.close()
  54
  55 if len(sys.argv) <= 2:
  56     print("Utility to export a image in Marlin TFT friendly format.")
  57     print("It will dump a raw bin RGB565 image or create a CPP file with an array of 16 bit image pixels.")
  58     print("Usage: gen-tft-image.py INPUT_IMAGE.(png|bmp|jpg) OUTPUT_FILE.(cpp|bin)")
  59     print("Author: rhapsodyv")
  60     exit(1)
  61
  62 output_img = sys.argv[2]
  63 img = Image.open(sys.argv[1])
  64 image2bin(img, output_img)