The Tor Browser / file comparison
comparison: gfx/layers/genTables.py
gfx/layers/genTables.py
- changeset 0
- 6474c204b198
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| -1:000000000000 | 0:542658756332 |
|---|---|
| 1 #!/usr/bin/python | |
| 2 | |
| 3 def table_generator(f): | |
| 4 return ",\n".join([", ".join(["0x%2.2x" % h for h in [f(i) for i in range(r,r+16)]]) for r in range(0, 65536, 16)]) | |
| 5 | |
| 6 with open("PremultiplyTables.h", "w") as f: | |
| 7 f.write("const uint8_t PremultiplyTable[256*256] = {\n"); | |
| 8 f.write(table_generator(lambda i: ((i / 256) * (i % 256) + 254) / 255) + "\n") | |
| 9 f.write("};\n"); | |
| 10 f.write("const uint8_t UnpremultiplyTable[256*256] = {\n"); | |
| 11 f.write(table_generator(lambda i: (i % 256) * 255 / ((i / 256) if (i / 256) > 0 else 255) % 256) + "\n") | |
| 12 f.write("};\n"); |
