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lv_img_conv: support other modes like 'P' #1989

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merged 1 commit into from
Jan 23, 2024
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lv_img_conv: support other modes like 'P' #1989

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9 changes: 8 additions & 1 deletion src/resources/lv_img_conv.py
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Original file line number Diff line number Diff line change
Expand Up @@ -101,6 +101,13 @@ def main():
img = Image.open(img_path)
img_height = img.height
img_width = img.width
if args.color_format == "CF_TRUE_COLOR_ALPHA" and img.mode != "RGBA":
# support pictures stored in other formats like with a color palette 'P'
# see: https://pillow.readthedocs.io/en/stable/handbook/concepts.html#modes
img = img.convert(mode="RGBA")
elif args.color_format == "CF_INDEXED_1_BIT" and img.mode != "L":
# for CF_INDEXED_1_BIT we need just a grayscale value per pixel
img = img.convert(mode="L")
if args.color_format == "CF_TRUE_COLOR_ALPHA" and args.binary_format == "ARGB8888":
buf = bytearray(img_height*img_width*4) # 4 bytes (32 bit) per pixel
for y in range(img_height):
Expand Down Expand Up @@ -140,7 +147,7 @@ def main():

for y in range(img_height):
for x in range(img_width):
c, a = img.getpixel((x,y))
c = img.getpixel((x,y))
p = w * y + (x >> 3) + 8 # +8 for the palette
buf[p] |= (c & 0x1) << (7 - (x & 0x7))
# write palette information, for indexed-1-bit we need palette with two values
Expand Down