From cbbd20302c6e3fb626bee5bd8b4932524049515c Mon Sep 17 00:00:00 2001 From: Mark Adler <madler@alumni.caltech.edu> Date: Sun, 15 Jan 2017 08:22:16 -0800 Subject: Permit immediate deflateParams changes before any deflate input. This permits deflateParams to change the strategy and level right after deflateInit, without having to wait until a header has been written. The parameters can be changed immediately up until the first deflate call that consumes any input data. --- deflate.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'deflate.c') diff --git a/deflate.c b/deflate.c index 8a1a91e..f146001 100644 --- a/deflate.c +++ b/deflate.c @@ -586,7 +586,8 @@ int ZEXPORT deflateParams(strm, level, strategy) } func = configuration_table[s->level].func; - if ((strategy != s->strategy || func != configuration_table[level].func)) { + if ((strategy != s->strategy || func != configuration_table[level].func) && + s->high_water) { /* Flush the last buffer: */ int err = deflate(strm, Z_BLOCK); if (err == Z_STREAM_ERROR) -- cgit v1.2.3-55-g6feb