lv_img_conv: support other modes like 'P'
Support other image modes like `P`, which uses 8 bits per pixel and a color palette to save space. Luckily the Pillow module can do the mode conversion for us. Fixes: https://github.com/InfiniTimeOrg/InfiniTime/issues/1985
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@ -101,6 +101,13 @@ def main():
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img = Image.open(img_path)
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img = Image.open(img_path)
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img_height = img.height
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img_height = img.height
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img_width = img.width
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img_width = img.width
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if args.color_format == "CF_TRUE_COLOR_ALPHA" and img.mode != "RGBA":
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# support pictures stored in other formats like with a color palette 'P'
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# see: https://pillow.readthedocs.io/en/stable/handbook/concepts.html#modes
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img = img.convert(mode="RGBA")
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elif args.color_format == "CF_INDEXED_1_BIT" and img.mode != "L":
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# for CF_INDEXED_1_BIT we need just a grayscale value per pixel
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img = img.convert(mode="L")
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if args.color_format == "CF_TRUE_COLOR_ALPHA" and args.binary_format == "ARGB8888":
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if args.color_format == "CF_TRUE_COLOR_ALPHA" and args.binary_format == "ARGB8888":
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buf = bytearray(img_height*img_width*4) # 4 bytes (32 bit) per pixel
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buf = bytearray(img_height*img_width*4) # 4 bytes (32 bit) per pixel
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for y in range(img_height):
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for y in range(img_height):
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@ -140,7 +147,7 @@ def main():
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for y in range(img_height):
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for y in range(img_height):
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for x in range(img_width):
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for x in range(img_width):
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c, a = img.getpixel((x,y))
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c = img.getpixel((x,y))
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p = w * y + (x >> 3) + 8 # +8 for the palette
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p = w * y + (x >> 3) + 8 # +8 for the palette
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buf[p] |= (c & 0x1) << (7 - (x & 0x7))
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buf[p] |= (c & 0x1) << (7 - (x & 0x7))
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# write palette information, for indexed-1-bit we need palette with two values
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# write palette information, for indexed-1-bit we need palette with two values
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