Commit Graph

1306 Commits

Author SHA1 Message Date
Corentin Chary 3941bf6fb1 vnc: tight: specific zlib level and filters for each compression level
Disable png filters for lower compression levels. This should lower
the CPU consumption and reduce encoding time.

This isn't in tight_conf because:
* tight_conf structure must not change, because it's shared with other
  tight implementations (libvncserver, etc..).
* it'd exceed the 80 col limit.
* PNG_ macros are only defined if CONFIG_VNC_PNG is defined

Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-07-26 17:36:14 -05:00
Corentin Chary efe556adb7 vnc: tight add PNG encoding
Introduce a new encoding: VNC_ENCODING_TIGHT_PNG [1] (-269) with a new
tight filter VNC_TIGHT_PNG (0x0A). When the client tells it supports the Tight PNG
encoding, the server will use tight, but will always send encoding pixels using
PNG instead of zlib. If the client also told it support JPEG, then the server can
send JPEG, because PNG will only be used in the cases zlib was used in normal tight.

This encoding was introduced to speed up HTML5 based VNC clients like noVNC [2], but
can also be used on devices like iPhone where PNG can be rendered in hardware.

[1] http://wiki.qemu.org/VNC_Tight_PNG
[2] http://github.com/kanaka/noVNC/

Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-07-26 17:36:14 -05:00
Corentin Chary d9c18c24b9 vnc: tight: remove a memleak in send_jpeg_rect()
buf was never freed.

Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-07-26 17:36:14 -05:00
Corentin Chary 5d8efe39a2 vnc: tight: don't forget do at the last color
While using indexed colors, the last color was never added to the palette.
Triggered with ubuntu livecd.

Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-07-26 17:36:14 -05:00
Corentin Chary 245f7b51c0 vnc: rename vnc-encoding-* vnc-enc-*
For the same reason that we don't use vnc-authentication-sasl.c but
vnc-auth-sals.c. Because it's tooooo long.

Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-07-26 17:36:13 -05:00
Corentin Chary 3e230dd23b ui: move all ui components in ui/
Move sdl, vnc, curses and cocoa UI into ui/ to cleanup
the root directory. Also remove some unnecessary explicit
targets from Makefile.

aliguori: fix build when srcdir != objdir

Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-07-26 17:35:54 -05:00