splash boot for package3 injector (by lRaphtalial)

package3_splash_injector.py

from PIL import Image
import sys, os
from struct import pack as pk
from math import floor

SPLASH_SCREEN_WIDTH  = 1280
SPLASH_SCREEN_HEIGHT = 720

SPLASH_SCREEN_STRIDE = 768

def convert_bytes(data):
 mutable = bytearray()
 pixel_length = 4 + ((SPLASH_SCREEN_STRIDE - SPLASH_SCREEN_HEIGHT) * 4)
 row_length = 4 * SPLASH_SCREEN_HEIGHT + ((SPLASH_SCREEN_STRIDE - SPLASH_SCREEN_HEIGHT) * 4)
 for ii in range(SPLASH_SCREEN_WIDTH):
  for jj in range(SPLASH_SCREEN_HEIGHT):
   mutable += pk('<BBBB', data[ii*row_length+jj*4+2], data[ii*row_length+jj*4+1], data[ii*row_length+jj*4], data[ii*row_length+jj*4+3])
 splash = Image.frombytes('RGBA', (SPLASH_SCREEN_HEIGHT, SPLASH_SCREEN_WIDTH), mutable)
 # splash = splash.transpose(Image.ROTATE_270)
 splash.save('splash.bmp')


def main(argc, argv):
  if argc != 2:
    print('Usage: %s package3' % argv[0])
    return 1
  with open(argv[1], 'rb') as f:
    package3 = f.read()
  assert package3[:4] == b'PK31'
  assert len(package3) == 0x800000
  convert_bytes(package3[0x400000:0x7C0000])
  return 0

if name == 'main':
  sys.exit(main(len(sys.argv), sys.argv))