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don't LZ search if an RLE is already max length

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devinacker 2013-11-15 17:09:54 -05:00
parent 82a1849337
commit a3b9b3a5ef
1 changed files with 3 additions and 3 deletions
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compress.c
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@ -116,12 +116,12 @@ size_t pack(uint8_t *unpacked, size_t inputsize, uint8_t *packed, int fast) {
} }
while (inpos < inputsize) { while (inpos < inputsize) {
// check for a potential RLE
rle = rle_check(unpacked, unpacked + inpos, inputsize, fast);
// check for a potential back reference // check for a potential back reference
if (inpos < inputsize - 3) if (rle.size < LONG_RUN_SIZE && inpos < inputsize - 3)
backref = ref_search(unpacked, unpacked + inpos, inputsize, fast); backref = ref_search(unpacked, unpacked + inpos, inputsize, fast);
else backref.size = 0; else backref.size = 0;
// and for a potential RLE
rle = rle_check(unpacked, unpacked + inpos, inputsize, fast);
// if the backref is a better candidate, use it // if the backref is a better candidate, use it
if (backref.size > 3 && backref.size > rle.size) { if (backref.size > 3 && backref.size > rle.size) {