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| author | Jim Kukunas <james.t.kukunas@linux.intel.com> | 2013-07-18 13:19:05 -0700 |
|---|---|---|
| committer | Jim Kukunas <james.t.kukunas@linux.intel.com> | 2014-07-26 15:53:17 -0700 |
| commit | d948170e11e4eaa68cce189e5ea10a4d41e01437 (patch) | |
| tree | 61d57f3abbc292e2a063b49e46ee19d9d82a8c2b /trees.h | |
| parent | 3684659f485b63f7482a8dc600f51112c556ce9d (diff) | |
deflate: add new deflate_quick strategy for level 1
The deflate_quick strategy is designed to provide maximum
deflate performance.
deflate_quick achieves this through:
- only checking the first hash match
- using a small inline SSE4.2-optimized longest_match
- forcing a window size of 8K, and using a precomputed dist/len
table
- forcing the static Huffman tree and emitting codes immediately
instead of tallying
This patch changes the scope of flush_pending, bi_windup, and
static_ltree to ZLIB_INTERNAL and moves END_BLOCK, send_code,
put_short, and send_bits to deflate.h.
Updates the configure script to enable by default for x86. On systems
without SSE4.2, fallback is to deflate_fast strategy.
Fixes #6
Fixes #8
Diffstat (limited to 'trees.h')
| -rw-r--r-- | trees.h | 2 |
1 files changed, 1 insertions, 1 deletions
@@ -1,6 +1,6 @@ /* header created automatically with -DGEN_TREES_H */ -local const ct_data static_ltree[L_CODES+2] = { +ZLIB_INTERNAL const ct_data static_ltree[L_CODES+2] = { {{ 12},{ 8}}, {{140},{ 8}}, {{ 76},{ 8}}, {{204},{ 8}}, {{ 44},{ 8}}, {{172},{ 8}}, {{108},{ 8}}, {{236},{ 8}}, {{ 28},{ 8}}, {{156},{ 8}}, {{ 92},{ 8}}, {{220},{ 8}}, {{ 60},{ 8}}, {{188},{ 8}}, {{124},{ 8}}, |