49 lines
1.5 KiB
Python
49 lines
1.5 KiB
Python
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#!/usr/bin/env python3
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"""Convert Logo.png to logo_data.c (RGBA8888 C array) for DSK kernel embedding.
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Usage: python png_to_rgba.py <input.png> <output.c>
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Output format:
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static const unsigned char g_logo_rgba[] = { ... };
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static const int g_logo_w = <width>;
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static const int g_logo_h = <height>;
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"""
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import sys
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from PIL import Image
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def main():
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if len(sys.argv) != 3:
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print(f"Usage: {sys.argv[0]} <input.png> <output.c>", file=sys.stderr)
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sys.exit(1)
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src_path = sys.argv[1]
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dst_path = sys.argv[2]
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img = Image.open(src_path).convert("RGBA")
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w, h = img.size
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raw = img.tobytes() # RGBA byte order
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# Write C source file
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with open(dst_path, "w", encoding="utf-8") as f:
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f.write("/* Auto-generated from Logo.png — RGBA8888 pixel data */\n")
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f.write("/* DO NOT EDIT. Regenerate via: python png_to_rgba.py Logo.png logo_data.c */\n\n")
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f.write(f"static const int g_logo_w = {w};\n")
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f.write(f"static const int g_logo_h = {h};\n")
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f.write(f"static const unsigned char g_logo_rgba[] = {{\n")
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bytes_per_row = w * 4
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for y in range(h):
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row_start = y * bytes_per_row
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row_data = raw[row_start:row_start + bytes_per_row]
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hex_vals = [f"0x{b:02x}" for b in row_data]
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f.write(" " + ", ".join(hex_vals) + ",\n")
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f.write("};\n")
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total = w * h * 4
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print(f"[png_to_rgba] {src_path} -> {dst_path}: {w}x{h}, {total} bytes")
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if __name__ == "__main__":
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main()
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