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Author : Rich Geldreich From http://code.google.com/p/miniz : miniz.c is a lossless, high performance data compression library in a single source file that implements the zlib (RFC 1950) and Deflate (RFC 1951) compressed data format specification standards. It supports the most commonly used functions exported by the zlib library, but is a completely independent implementation so zlib's licensing requirements do not apply. miniz.c also contains simple to use functions for writing .PNG format image files and reading/writing/appending .ZIP format archives. miniz's compression speed has been tuned to be comparable to zlib's, and it also has a specialized real-time compressor function designed to compare well against fastlz/minilzo. Features Completely free: Public domain in jurisdictions that recognize copyright laws, with a license patterned after the public domain SQLite project, see unlicense.org. A portable, single source file header file library written in plain C. I've tested with clang v3.3, various versions of gcc, mingw, MSVC 2008/2010, and TCC (Tiny C Compiler) v0.9.26, under both Linux and Windows x86/x64. Earlier versions of miniz where also tested on OSX, and miniz.c has shipped in several iOS games. Easily tuned and trimmed down by configuring macros at the top of the source file. A drop-in replacement for zlib's most used API's (tested in several open source projects that use zlib, such as libpng and libzip). Fills a single threaded performance vs. compression ratio gap between several popular real-time compressors and zlib. For example, at level 1, miniz.c compresses around 5-9% better than minilzo, but is approx. 35% slower. At levels 2-9, miniz.c is designed to compare favorably against zlib's ratio and speed. See the miniz performance comparison page for example timings. Not a block based compressor: miniz.c fully supports stream based processing using a coroutine-style implementation. The zlib-style API functions can be called a single byte at a time if that's all you've got. Easy to use. The low-level compressor (tinfl) and decompressor (tdefl) have simple state structs which can be saved/restored as needed with simple memcpy's. The low-level codec API's don't use the heap in any way. Entire inflater (including optional zlib header parsing and Adler-32 checking) is implemented in a single function as a coroutine, which is separately available in a small (~550 line) source file: tinfl.c A fairly complete (but totally optional) set of .ZIP archive manipulation and extraction API's. The archive functionality is intended to solve common problems encountered in embedded, mobile, or game development situations. (The archive API's are purposely just powerful enough to write an entire archiver given a bit of additional higher-level logic.) Example Projects example1.c: Demonstrates miniz.c's compress() and uncompress() functions (same as zlib's), also a crude decompressor fuzzy test. example2.c: Demonstration of miniz.c's ZIP archive API's. Adds a bunch of files to test.zip, dumps file stat info on each file in the archive, then extracts a single file into memory. example3.c: Command line tool for file compression/decompression. Demonstrates how to use miniz.c's deflate() and inflate() functions to handle streaming compression/decompression. example4.c: Demonstrates memory to callback decompression of compressed zlib streams (can decompress files generated by example3). Simple demo of tinfl.c, which is just the Inflate functionality pulled from the larger miniz.c. tinfl.c is a full single-function Inflate implementation with zlib header parsing and Adler32 checking in ~550 lines of code+comments. example5.c: Demonstrates how to use the lowest level (non-zlib compatible) API's for file to file compression. The low-level API's are less forgiving, but more flexible, faster, and don't ever touch the heap. The low-level API's are implemented as coroutines, so they can be efficiently used for any sort of streaming scenario. example6.c: Simple PNG writing demonstration. As of v1.13 I also include one of the test app (miniz_tester.cpp) I used to regression test miniz. This command line tool is only intended for testing, and it wasn't intended to be an example, but I'm releasing it in case someone finds it useful.
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