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| author | Yann Collet <cyan@fb.com> | 2019-05-30 23:19:30 (GMT) |
|---|---|---|
| committer | Yann Collet <cyan@fb.com> | 2019-05-30 23:19:30 (GMT) |
| commit | 676d46df2723c89ca7d80fd71d3c2dc6e5be82ec (patch) | |
| tree | dc2ab04d30378a10c5d54e91130a1fe76897145d /lib/lz4.h | |
| parent | 6c69ae6bd69ee66b9e5051b4f88d533999240553 (diff) | |
| download | lz4-676d46df2723c89ca7d80fd71d3c2dc6e5be82ec.zip lz4-676d46df2723c89ca7d80fd71d3c2dc6e5be82ec.tar.gz lz4-676d46df2723c89ca7d80fd71d3c2dc6e5be82ec.tar.bz2 | |
updated LZ4_DECOMPRESS_INPLACE_MARGIN
to pass worst case scenario.
Now adds margin proportional to input size to counter local expansion.
Diffstat (limited to 'lib/lz4.h')
| -rw-r--r-- | lib/lz4.h | 4 |
1 files changed, 2 insertions, 2 deletions
@@ -518,8 +518,8 @@ LZ4LIB_STATIC_API void LZ4_attach_dictionary(LZ4_stream_t* workingStream, const * so there are ways to reduce memory requirements by playing with them. */ -#define LZ4_DECOMPRESS_INPLACE_MARGIN 32 -#define LZ4_DECOMPRESS_INPLACE_BUFFER_SIZE(decompressedSize) ( (decompressedSize) + LZ4_DECOMPRESS_INPLACE_MARGIN) /**< note: presumes that compressedSize < decompressedSize */ +#define LZ4_DECOMPRESS_INPLACE_MARGIN(decompressedSize) (((decompressedSize) >> 8) + 32) +#define LZ4_DECOMPRESS_INPLACE_BUFFER_SIZE(decompressedSize) ( (decompressedSize) + LZ4_DECOMPRESS_INPLACE_MARGIN(decompressedSize)) /**< note: presumes that compressedSize < decompressedSize */ #ifndef LZ4_DISTANCE_MAX /* history window size; can be user-defined at compile time */ # define LZ4_DISTANCE_MAX 65535 /* set to maximum value by default */ |