Project-1CE/external_zlib-ng - Unnamed repository; edit this file 'description' to name the repository.

Age	Commit message (Collapse)	Author
2020-08-31	Fix numerous sign-conversion warnings in compare256/compare258 and	Hans Kristian Rosbach
	longest_match related code.
2020-08-31	Rename ZLIB_INTERNAL to Z_INTERNAL for consistency.	Nathan Moinvaziri

2020-08-23	Add optional support for thread local storage. (#733)	Nathan Moinvaziri

2020-08-21	Remove return value from insert_string, since it is always ignored and	Hans Kristian Rosbach
	quick_insert_string is being used instead.
2020-08-14	Fixed many possible loss of data warnings where insert_string and ↵	Nathan Moinvaziri
	quick_insert_string function used on Windows.
2020-06-28	Split memcopy by architecture.	Nathan Moinvaziri
	Use uint8_t[8] struct on big-endian machines for speed.
2020-05-30	Remove IPos typedef which also helps to reduce casting warnings.	Nathan Moinvaziri

2020-05-24	Converted compare258 to static and convert longest_match to template.	Nathan Moinvaziri

2020-05-24	Abstracted out architecture specific implementations of 258 byte comparison ↵	Nathan Moinvaziri
	to compare258.
2020-05-01	Standardize fill_window implementations and abstract out slide_hash_neon for ↵	Nathan Moinvaziri
	ARM.
2020-04-30	Standardize insert_string functionality across architectures. Added ↵	Nathan Moinvaziri
	unaligned conditionally compiled code for insert_string and quick_insert_string. Unify sse42 crc32 assembly between insert_string and quick_insert_string. Modified quick_insert_string to work across architectures.
2019-09-04	Add slide_hash to functable, and enable the sse2-optimized version.	Hans Kristian Rosbach
	Add necessary code to cmake and configure. Fix slide_hash_sse2 to compile with zlib-ng.
2018-09-17	Make functable thread-local.	Mika Lindqvist

2018-02-16	wrap crc32 in functable (#145)	Daniel Black
	* wrap crc32 in functable * change internal crc32 api to use uint64_t rather than size_t for length
2017-08-17	Make sure we don't export internal functions	Hans Kristian Rosbach

2017-05-03	Lazily initialize functable members. (#108)	Mika Lindqvist
	- Split functableInit() function as separate functions for each functable member, so we don't need to initialize full functable in multiple places in the zlib-ng code, or to check for NULL on every invocation. - Optimized function for each functable member is detected on first invocation and the functable item is updated for subsequent invocations. - Remove NULL check in adler32() and adler32_z() as it is no longer needed.
2017-04-24	- Add adler32 to functable	Hans Kristian Rosbach
	- Add missing call to functableinit from inflateinit - Fix external direct calls to adler32 functions without calling functableinit
2017-04-24	Add a struct func_table and function functableInit.	Hans Kristian Rosbach
	The struct contains pointers to select functions to be used by the rest of zlib, and the init function selects what functions will be used depending on what optimizations has been compiled in and what instruction-sets are available at runtime. Tests done on a haswell cpu running minigzip -6 compression of a 40M file shows a 2.5% decrease in branches, and a 25-30% reduction in iTLB-loads. The reduction i iTLB-loads is likely mostly due to the inability to inline functions. This also causes a slight performance regression of around 1%, this might still be worth it to make it much easier to implement new optimized functions for various architectures and instruction sets. The performance penalty will get smaller for functions that get more alternative implementations to choose from, since there is no need to add more branches to every call of the function. Today insert_string has 1 branch to choose insert_string_sse or insert_string_c, but if we also add for example insert_string_sse4 then that would have needed another branch, and it would probably at some point hinder effective inlining too.