diff options
Diffstat (limited to 'lib/common/comp_lzo.c')
| -rw-r--r-- | lib/common/comp_lzo.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/lib/common/comp_lzo.c b/lib/common/comp_lzo.c index a0c838a..8d0335e 100644 --- a/lib/common/comp_lzo.c +++ b/lib/common/comp_lzo.c @@ -48,6 +48,7 @@ static const struct { typedef struct { sqfs_compressor_t base; + size_t block_size; int algorithm; int level; @@ -182,6 +183,22 @@ static sqfs_s32 lzo_uncomp_block(sqfs_compressor_t *base, const sqfs_u8 *in, return len; } +static void lzo_get_configuration(const sqfs_compressor_t *base, + sqfs_compressor_config_t *cfg) +{ + const lzo_compressor_t *lzo = (const lzo_compressor_t *)base; + + memset(cfg, 0, sizeof(*cfg)); + cfg->id = SQFS_COMP_LZO; + cfg->block_size = lzo->block_size; + + cfg->opt.lzo.algorithm = lzo->algorithm; + cfg->opt.lzo.level = lzo->level; + + if (base->do_block == lzo_uncomp_block) + cfg->flags |= SQFS_COMP_FLAG_UNCOMPRESS; +} + static sqfs_compressor_t *lzo_create_copy(sqfs_compressor_t *cmp) { lzo_compressor_t *other = (lzo_compressor_t *)cmp; @@ -242,11 +259,13 @@ sqfs_compressor_t *lzo_compressor_create(const sqfs_compressor_config_t *cfg) if (lzo == NULL) return NULL; + lzo->block_size = cfg->block_size; lzo->algorithm = cfg->opt.lzo.algorithm; lzo->level = cfg->opt.lzo.level; lzo->buf_size = scratch_size; lzo->work_size = lzo_algs[cfg->opt.lzo.algorithm].bufsize; + base->get_configuration = lzo_get_configuration; base->do_block = (cfg->flags & SQFS_COMP_FLAG_UNCOMPRESS) ? lzo_uncomp_block : lzo_comp_block; base->write_options = lzo_write_options; |