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[Qemu-devel] [PATCH v2 04/10] vnc: adjust compression zstream level
From: |
Corentin Chary |
Subject: |
[Qemu-devel] [PATCH v2 04/10] vnc: adjust compression zstream level |
Date: |
Tue, 18 May 2010 14:49:40 +0200 |
Adjust zlib compression level if needed by calling deflateParams.
Signed-off-by: Corentin Chary <address@hidden>
---
vnc-encoding-zlib.c | 9 ++++++++-
vnc.h | 1 +
2 files changed, 9 insertions(+), 1 deletions(-)
diff --git a/vnc-encoding-zlib.c b/vnc-encoding-zlib.c
index 6a16a79..29dd1b7 100644
--- a/vnc-encoding-zlib.c
+++ b/vnc-encoding-zlib.c
@@ -83,10 +83,17 @@ static int vnc_zlib_stop(VncState *vs)
return -1;
}
+ vs->zlib_level = vs->tight_compression;
zstream->opaque = vs;
}
- // XXX what to do if tight_compression changed in between?
+ if (vs->tight_compression != vs->zlib_level) {
+ if (deflateParams(zstream, vs->tight_compression,
+ Z_DEFAULT_STRATEGY) != Z_OK) {
+ return -1;
+ }
+ vs->zlib_level = vs->tight_compression;
+ }
// reserve memory in output buffer
buffer_reserve(&vs->output, vs->zlib.offset + 64);
diff --git a/vnc.h b/vnc.h
index dfdb240..96f3fe7 100644
--- a/vnc.h
+++ b/vnc.h
@@ -174,6 +174,7 @@ struct VncState
Buffer zlib;
Buffer zlib_tmp;
z_stream zlib_stream;
+ int zlib_level;
Notifier mouse_mode_notifier;
--
1.7.0.2
- [Qemu-devel] Re: [PATCH v2 02/10] vnc: really call zlib if we want zlib, (continued)
[Qemu-devel] [PATCH v2 10/10] vnc: update copyrights for vnc-encoding-tight.c, Corentin Chary, 2010/05/18
[Qemu-devel] [PATCH v2 04/10] vnc: adjust compression zstream level,
Corentin Chary <=
[Qemu-devel] [PATCH v2 05/10] vnc: add basic tight support, Corentin Chary, 2010/05/18
[Qemu-devel] [PATCH v2 09/10] vnc: tight: add palette encoding, Corentin Chary, 2010/05/18
[Qemu-devel] [PATCH v2 08/10] vnc: remove memory leaks in zlib and tight encoding, Corentin Chary, 2010/05/18
[Qemu-devel] [PATCH v2 06/10] vnc: add support for tight fill encoding, Corentin Chary, 2010/05/18
[Qemu-devel] [PATCH v2 07/10] vnc: don't clear zlib stream on set_encoding, Corentin Chary, 2010/05/18