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Diffstat (limited to 'debian/vendor-h2o/deps/brotli/enc/compress_fragment_two_pass.h')
-rw-r--r-- | debian/vendor-h2o/deps/brotli/enc/compress_fragment_two_pass.h | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/debian/vendor-h2o/deps/brotli/enc/compress_fragment_two_pass.h b/debian/vendor-h2o/deps/brotli/enc/compress_fragment_two_pass.h new file mode 100644 index 0000000..690ed08 --- /dev/null +++ b/debian/vendor-h2o/deps/brotli/enc/compress_fragment_two_pass.h @@ -0,0 +1,40 @@ +/* Copyright 2015 Google Inc. All Rights Reserved. + + Distributed under MIT license. + See file LICENSE for detail or copy at https://opensource.org/licenses/MIT +*/ + +// Function for fast encoding of an input fragment, independently from the input +// history. This function uses two-pass processing: in the first pass we save +// the found backward matches and literal bytes into a buffer, and in the +// second pass we emit them into the bit stream using prefix codes built based +// on the actual command and literal byte histograms. + +#ifndef BROTLI_ENC_COMPRESS_FRAGMENT_TWO_PASS_H_ +#define BROTLI_ENC_COMPRESS_FRAGMENT_TWO_PASS_H_ + +#include "./types.h" + +namespace brotli { + +static const size_t kCompressFragmentTwoPassBlockSize = 1 << 17; + +// Compresses "input" string to the "*storage" buffer as one or more complete +// meta-blocks, and updates the "*storage_ix" bit position. +// +// If "is_last" is true, emits an additional empty last meta-block. +// +// REQUIRES: "input_size" is greater than zero, or "is_last" is true. +// REQUIRES: "command_buf" and "literal_buf" point to at least +// kCompressFragmentTwoPassBlockSize long arrays. +// REQUIRES: All elements in "table[0..table_size-1]" are initialized to zero. +// REQUIRES: "table_size" is a power of two +void BrotliCompressFragmentTwoPass(const uint8_t* input, size_t input_size, + bool is_last, + uint32_t* command_buf, uint8_t* literal_buf, + int* table, size_t table_size, + size_t* storage_ix, uint8_t* storage); + +} // namespace brotli + +#endif // BROTLI_ENC_COMPRESS_FRAGMENT_TWO_PASS_H_ |