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https://github.com/brain-hackers/boot4u
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35 lines
948 B
Python
35 lines
948 B
Python
import sys
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from PIL import Image
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template = '''void load_pixels() {{
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{lines}
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}};
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'''
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im = Image.open(sys.argv[-2]).convert('RGB')
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with open(sys.argv[-1], 'w') as f:
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pixels = []
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lines = []
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count = 0
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for y in range(im.size[1]):
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for x in range(0, im.size[0], 2):
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r, g, b = im.getpixel((x, y))
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rgb565 = ((r >> 3) << 11) | ((g >> 2) << 5) | (b >> 3)
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pixels.append(rgb565 >> 8)
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pixels.append(rgb565 & 0xff)
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r, g, b = im.getpixel((x+1, y))
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rgb565 = ((r >> 3) << 11) | ((g >> 2) << 5) | (b >> 3)
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pixels.append(rgb565 >> 8)
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pixels.append(rgb565 & 0xff)
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u32 = (pixels[0] << 24) + (pixels[1] << 16) + (pixels[2] << 8) + pixels[3]
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lines.append(f'\t*(unsigned int *)(0x62000000 + {count:7d}) = {u32:#08x};')
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pixels = []
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count += 4;
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f.write(template.format(lines='\n'.join(lines)))
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