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LibCompress: Decrease CanonicalCode's size on stack

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This commit stores the bit codes as u16s instead of u32s as the
maximum code bit length in DEFLATE is 15.
This commit is contained in:
Idan Horowitz 2021-03-14 14:19:47 +02:00 • committed by Andreas Kling
parent ab9f66a069
commit 02b4cb96f8
Notes: sideshowbarker 2024-07-18 21:22:13 +09:00
1 changed files with 4 additions and 4 deletions
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8
Userland/Libraries/LibCompress/Deflate.h
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@ -49,12 +49,12 @@ public:
private:
// Decompression - indexed by code
Vector<u32> m_symbol_codes;
Vector<u32> m_symbol_values;
Vector<u16> m_symbol_codes;
Vector<u16> m_symbol_values;
// Compression - indexed by symbol
Array<u32, 288> m_bit_codes {}; // deflate uses a maximum of 288 symbols (maximum of 32 for distances)
Array<u32, 288> m_bit_code_lengths {};
Array<u16, 288> m_bit_codes {}; // deflate uses a maximum of 288 symbols (maximum of 32 for distances)
Array<u16, 288> m_bit_code_lengths {};
};
class DeflateDecompressor final : public InputStream {