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https://github.com/Atmosphere-NX/Atmosphere.git
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44 lines
1.3 KiB
Python
44 lines
1.3 KiB
Python
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from PIL import Image
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import sys, os
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from struct import pack as pk
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SPLASH_SCREEN_WIDTH = 1280
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SPLASH_SCREEN_HEIGHT = 720
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SPLASH_SCREEN_STRIDE = 768
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def convert_image(image_fn):
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splash = Image.open(image_fn, 'r')
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w, h = splash.size
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if w == 1280 and h == 720:
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splash = splash.transpose(Image.ROTATE_90)
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w, h = splash.size
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assert w == 720
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assert h == 1280
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splash = splash.convert('RGBA')
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splash_bin = b''
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for row in range(SPLASH_SCREEN_WIDTH):
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for col in range(SPLASH_SCREEN_HEIGHT):
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r, g, b, a = splash.getpixel((col, row))
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splash_bin += pk('<BBBB', b, g, r, a)
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splash_bin += b'\x00' * ((SPLASH_SCREEN_STRIDE - SPLASH_SCREEN_HEIGHT) * 4)
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return splash_bin
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def main(argc, argv):
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if argc != 3:
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print('Usage: %s image package3' % argv[0])
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return 1
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with open(argv[2], 'rb') as f:
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package3 = f.read()
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assert package3[:4] == b'PK31'
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assert len(package3) == 0x800000
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splash_bin = convert_image(argv[1])
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assert len(splash_bin) == 0x3C0000
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with open(argv[2], 'wb') as f:
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f.write(package3[:0x400000])
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f.write(splash_bin)
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f.write(package3[0x7C0000:])
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return 0
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if __name__ == '__main__':
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sys.exit(main(len(sys.argv), sys.argv))
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