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Yonit Halperin 80f0865b44 server/red_worker/video: maintain visible region and clip region for streams
Differentiate between the clipping of the video stream, and the region
that currently displays fragments of the video stream (henceforth,
vis_region). The latter equals or contains the former one. For example,
let c1 be the clip area at time t1, and c2 be the clip area at time t2,
where t1 < t2. If c1 contains c2, and at least part of c1/c2, hasn't been
covered by a non-video images, vis_region will contain c2, and also the part
of c1/c2 that still displays fragments of the video.
When we consider if a stream should be "upgraded" (1), due to its area
being used by a rendering operation, or due to stopping the video, we
should take into account the vis_region, and not the clip region (next
patch: not upgrade by the last frame, but rather by vis_region).
This fix will be more necessary when sized frames are introduced (see the
following patches). Then, the vis_region might be larger
than the last frame, and contain it, more frequently than before.

(1) "upgrading a stream" stands for sending its last frame losslessly. Or more
precisely, lossless resending of all the currently displayed lossy areas, that were
sent as part of the stream.
2012-05-03 12:30:55 +03:00
build-aux Add a 'syntax-check' make target 2012-01-13 18:12:00 +02:00
client Ensure __STDC_FORMAT_MACROS is always defined first 2012-04-26 18:46:52 +01:00
docs docs/Spice_for_newbies.odt: some updates - added copy paste and wan mention, removed vdi_port 2012-01-22 15:13:32 +02:00
m4 Disable -Waggregate-return if building with SLIRP 2012-04-26 18:46:52 +01:00
server server/red_worker/video: maintain visible region and clip region for streams 2012-05-03 12:30:55 +03:00
spice-common@178c7eaff6 Update the spice-common submodule 2012-05-03 12:30:47 +03:00
tests tests/migrate.py: add --vdagent 2011-08-23 17:01:14 +03:00
tools Add casts for compatibility purposes 2012-02-14 10:44:49 +02:00
uncrustify_cfg fresh start 2009-10-14 15:06:41 +02:00
.gitignore Use the spice-common logging functions 2012-03-25 19:00:00 +02:00
.gitmodules Use the spice-common submodule 2012-03-25 18:59:10 +02:00
.mailmap Add recent new committers to AUTHORS file / mailmap 2012-04-25 09:49:29 +01:00
AUTHORS Add recent new committers to AUTHORS file / mailmap 2012-04-25 09:49:29 +01:00
autogen.sh Use the spice-common submodule 2012-03-25 18:59:10 +02:00
cfg.mk Add a few more syntax-check exemptions 2012-04-25 09:49:32 +01:00
ChangeLog fresh start 2009-10-14 15:06:41 +02:00
configure.ac Ensure __STDC_FORMAT_MACROS is always defined first 2012-04-26 18:46:52 +01:00
COPYING Relicense everything from GPL to LGPL 2.1+ 2010-04-13 22:22:15 +02:00
GITVERSION Add --enable-werror and make it the default only for git builds 2010-07-09 12:14:32 +02:00
GNUmakefile Add a 'syntax-check' make target 2012-01-13 18:12:00 +02:00
maint.mk Add a 'syntax-check' make target 2012-01-13 18:12:00 +02:00
Makefile.am Use the spice-common submodule 2012-03-25 18:59:10 +02:00
NEWS Release 0.10.1 2012-01-23 15:58:13 +01:00
README README: make a note of SPICE_DEBUG_ALLOW_MC 2012-02-15 14:32:11 +02:00
spice-server.pc.in spice-server.pc.in: move Requires to Requires.private 2011-10-23 11:26:30 +02:00
TODO.multiclient Remove trailing whitespace from end of lines 2012-01-13 18:11:59 +02:00

   SPICE: Simple Protocol for Independent Computing Environments
   =============================================================

SPICE is a remote display system built for virtual environments which
allows you to view a computing 'desktop' environment not only on the
machine where it is running, but from anywhere on the Internet and
from a wide variety of machine architectures.

Installation
------------

The SPICE package uses GNU autotools, so the build install process
follows the standard process documented in the INSTALL file. As a
quick start you can do

  ./configure --prefix=/usr --sysconfdir=/etc \
        --localstatedir=/var --libdir=/usr/lib
  make
  sudo make install

Or to install into a private user specific location

  ./configure --prefix=$HOME/spice
  make
  make install

The following mandatory dependancies are required in order to
build SPICE

    Spice protocol >= 0.9.0
    Celt           >= 0.5.1.1, < 0.6.0
    Pixman         >= 0.17.7
    OpenSSL
    libjpeg
    zlib
    Cyrus-SASL

The following optional dependancies increase the available
functionality

    GE Gui         >= 0.6.0,  < 0.7.0   (GUI app support)
    OpenGL                              (GUI app support)
    Alsa                                (Linux support)
    XRandR         >= 1.2               (X11 support)
    Xinerama       >= 1.0               (X11 support)
    libcacard      >= 0.1.2             (Smartcard support)
    Slirp                               (Tunnelling support)

Communication
-------------

To communicate with the development team, or to post patches
there is a technical mailing list:

   http://lists.freedesktop.org/mailman/listinfo/spice-devel

There is also a mailing list for new release announcements:

   http://lists.freedesktop.org/archives/spice-announce/

To view known bugs, or report new bugs, in SPICE visit

   https://bugs.freedesktop.org/describecomponents.cgi?product=Spice

Bugs found when using an OS distribution's binary packages should
be reported to the OS vendors' own bug tracker first.

The latest SPICE code can be found in GIT at:

   http://cgit.freedesktop.org/spice/

Licensing
---------

SPICE is provided under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.

Please see the COPYING file for the complete LGPLv2+ license
terms, or visit <http://www.gnu.org/licenses/>.

Experimental Features
---------------------
To enable multiple client connections, set:
SPICE_DEBUG_ALLOW_MC=1

-- End of readme