MeowOS Dev
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34 lines
882 B
Python
34 lines
882 B
Python
#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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"""raw2png.py — 将 meow_font_demo 产出的 480x720 RGB565(raw, little-endian uint16) 转成 PNG。
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用法: raw2png.py <in.raw> <out.png>
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"""
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import sys
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from PIL import Image
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W, H = 480, 720
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def main():
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raw = open(sys.argv[1], "rb").read()
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assert len(raw) == W * H * 2, f"expect {W * H * 2}, got {len(raw)}"
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out = sys.argv[2]
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img = Image.new("RGBA", (W, H), (0, 0, 0, 255))
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px = img.load()
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for y in range(H):
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base = y * W * 2
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for x in range(W):
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o = base + x * 2
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v = raw[o] | (raw[o + 1] << 8) # LE uint16
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r = ((v >> 11) & 31) * 255 // 31
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g = ((v >> 5) & 63) * 255 // 63
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b = (v & 31) * 255 // 31
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px[x, y] = (r, g, b, 255)
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img.save(out)
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print(f"saved {out} ({W}x{H})")
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if __name__ == "__main__":
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main()
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