rpone
ab11a8cb68
Source-driver and source-storage builds, the arm64e PAC rewrite for the Rust bridge, the IOAccelerator base ABI of 24A446, the bridge with mimalloc and link-time optimisation, the plugin with the prime list, addon options for a prime list, a pipeline pack and cache export, wallpaper overlay and seed changes, and payload, kernel and userdata steps for the new profile.
73 lines
4.5 KiB
Python
73 lines
4.5 KiB
Python
#!/usr/bin/env python3
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"""Build the overlay for the default iPadOS 17 wallpaper's layered animation with PNG images in place of its HEIC ones.
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make-wallpaper-overlay.py SYSTEM_ROOT OUTPUT_DIR [ipados27|ipados27-floating]
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SYSTEM_ROOT is the mounted OS volume of the IPSW (ipsw mount fs). The iPad7,1 variant of wallpaper 7570 (Flat, two image layers) is the
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one PosterBoard picks on this device; its images are HEIC, which ImageIO cannot decode without a hardware HEVC decoder. OUTPUT_DIR gets
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the animation's index.xml, assetManifest.caml and a main.caml that points at J120.png and J120-Dark.png next to it (converted with sips,
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so this runs on macOS, and scaled to EDGE pixels). make-gpu-addon.py --wallpaper OUTPUT_DIR carries it to the kernel, which mounts it over the sealed animation.
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With ipados27 the overlay is for iPadOS 27's variant of the same wallpaper (1032w-1376h, a background and a floating layer): its background
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layer, whose two images (Background Light/Dark, 1620 x 1080) become Background-Light.png and Background-Dark.png at their own size.
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With ipados27-floating it is the same variant's floating layer: its 13 images (blurred colour shapes with alpha) become PNG images, the
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ones wider than 1000 pixels at a third of their size (the layers stretch their contents to their bounds; full size does not fit the boot
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payload)."""
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import subprocess
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import sys
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from pathlib import Path
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PROFILES = {
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None: (('Library/Wallpaper/Collections/iPadOS_17~ipad.wallpaperCollection/Wallpapers/7570.iPadOS_17_Flat-1024w-1366h@2x~ipad.wallpaper/'
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'7570.iPadOS_17_Flat_Background-1024w-1366h@2x~ipad.ca'), {'J120': 'J120', 'J120-Dark': 'J120-Dark'}),
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'ipados27': (('Library/Wallpaper/Collections/iPadOS_17~ipad.wallpaperCollection/Wallpapers/7570.iPadOS_17-1032w-1376h@2x~ipad.wallpaper/'
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'7570.iPadOS_17_Background-1032w-1376h@2x~ipad.ca'),
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{'Background%20Light': 'Background-Light', 'Background%20Dark': 'Background-Dark'}),
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'ipados27-floating': (('Library/Wallpaper/Collections/iPadOS_17~ipad.wallpaperCollection/Wallpapers/7570.iPadOS_17-1032w-1376h@2x~ipad.wallpaper/'
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'7570.iPadOS_17_Floating-1032w-1376h@2x~ipad.ca'),
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{name.replace(' ', '%20'): name.replace(' ', '-') for name in (
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'Aqua Dark', 'Aqua Light', 'Green Dark', 'Green Light', 'Orange Dark', 'Orange Light', 'Red Dark', 'Red Light',
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'Red Landscape Patch', 'Red Yellow Edge Patch Dark', 'Red Yellow Edge Patch Light', 'Yellow Dark', 'Yellow Light')}),
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}
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# Longest edge of each profile's PNG images: None keeps the image's own size, a negative value divides images wider than its absolute
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# value by three.
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EDGES = {None: 2732, # iPadOS 17's HEIC images are 3416 pixels square; PNG at that size does not fit the boot payload
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'ipados27': None, 'ipados27-floating': -1000}
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def main():
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if len(sys.argv) not in (3, 4) or len(sys.argv) == 4 and sys.argv[3] not in PROFILES:
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sys.exit(__doc__)
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profile = sys.argv[3] if len(sys.argv) == 4 else None
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animation, images = PROFILES[profile]
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edge = EDGES[profile]
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source, output = Path(sys.argv[1]) / animation, Path(sys.argv[2])
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if not (source / 'main.caml').is_file():
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sys.exit('No wallpaper animation at ' + str(source))
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if output.exists():
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sys.exit('Refuse to overwrite ' + str(output))
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output.mkdir(parents=True)
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for name in ('index.xml', 'assetManifest.caml'):
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(output / name).write_bytes((source / name).read_bytes())
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main_caml = (source / 'main.caml').read_text()
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for image, png in images.items():
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main_caml = main_caml.replace(f'"/assets/{image}.HEIC"', f'"/{png}.png"').replace(f'"assets/{image}.HEIC"', f'"{png}.png"')
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heic = source / 'assets' / (image.replace('%20', ' ') + '.HEIC')
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size = []
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if edge and edge > 0:
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size = ['-Z', str(edge)]
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elif edge:
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width = int(subprocess.check_output(['sips', '-g', 'pixelWidth', str(heic)], text=True).split()[-1])
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if width > -edge:
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size = ['-Z', str(width // 3)]
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subprocess.run(['sips', *size, '-s', 'format', 'png', str(heic), '--out', str(output / f'{png}.png')],
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check=True, stdout=subprocess.DEVNULL)
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if '.HEIC"/>' in main_caml:
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sys.exit('main.caml still points at a HEIC image')
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(output / 'main.caml').write_text(main_caml)
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for path in sorted(output.iterdir()):
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print(f'{path.stat().st_size:>10} {path.name}')
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if __name__ == '__main__':
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main()
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