25 lines
1.1 KiB
Go
25 lines
1.1 KiB
Go
package brotli
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/* Compresses "input" string to the "*storage" buffer as one or more complete
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meta-blocks, and updates the "*storage_ix" bit position.
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If "is_last" is 1, emits an additional empty last meta-block.
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REQUIRES: "input_size" is greater than zero, or "is_last" is 1.
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REQUIRES: "input_size" is less or equal to maximal metablock size (1 << 24).
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REQUIRES: "command_buf" and "literal_buf" point to at least
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kCompressFragmentTwoPassBlockSize long arrays.
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REQUIRES: All elements in "table[0..table_size-1]" are initialized to zero.
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REQUIRES: "table_size" is a power of two
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OUTPUT: maximal copy distance <= |input_size|
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OUTPUT: maximal copy distance <= BROTLI_MAX_BACKWARD_LIMIT(18) */
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const maxDistance = 262128
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/* kHashMul32_a multiplier has these properties:
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* The multiplier must be odd. Otherwise we may lose the highest bit.
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* No long streaks of ones or zeros.
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* There is no effort to ensure that it is a prime, the oddity is enough
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for this use.
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* The number has been tuned heuristically against compression benchmarks. */
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var kHashMul32_a uint32 = 0x1E35A7BD
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