| Commit message (Collapse) | Author | Age | Files | Lines |
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Returns the number of bytes per pixel corresponding to the input
data format.
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This API is meant to allow us to move the pixel format conversion
into MjpegEncoder. This will allow us to be able to use the
additional pixel formats from libjpeg-turbo when available.
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It takes a lot of arguments, "id" is unused, "frame" and
"frame_size" can be obtained from the "stream" argument, so
can get rid of 3 arguments to make things more readable.
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When encoding a frame, red_worker passes an allocated buffer to
libjpeg where it should encode the frame. When it fails, a new
bigger buffer is allocated and the encoding is restarted from
scratch. However, it's possible to use libjpeg to realloc this
buffer if it gets too small during the encoding process. Make use
of this feature, especially since it will make it easier to encore
one line at a time instead of a full frame in subsequent commits.
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When encoding to mjpeg, the on screen data have to be converted
to 24bpp RGB since that's the format that libjpeg expects. Factor
as much code as possible for the 3 formats we handle.
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The check this patch removes causes us to not set vdagent to NULL, nor
update the mouse mode when the guest agent disconnects when no client is
attached. Which leads to a non working mouse, and on agent reconnect a
"spice_server_char_device_add_interface: vdagent already attached" message
instead of a successful re-add of the agent interface .
hansg: Note this is commit 443994ba from the 0.8 branch, which I did
not forward port back then because it seemed unnecessary on master, but it
turns out that the (wrong) check was just hidden in another place on master.
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When surfaces are being reloaded to the worker, we
will send them to the client only if and when it needs them.
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This does the following, all to remove any referenced memory on the pci bars:
flush_all_qxl_commands(worker);
flush_all_surfaces(worker);
red_wait_outgoing_item((RedChannel *)worker->display_channel);
red_wait_outgoing_item((RedChannel *)worker->cursor_channel);
The added api is specifically async, i.e. it calls async_complete
when done.
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when update_area_async is called update_area_complete will be called with
the surfaces dirty rectangle list.
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The new _ASYNC io's in qxl_dev listed at the end get six new api
functions, and an additional callback function "async_complete". When
the async version of a specific io is used, completion is notified by
calling async_complete, and no READY message is written or expected by
the dispatcher.
update_area has been changed to push QXLRects to the worker thread, where
the conversion to SpiceRect takes place.
A cookie has been added to each async call to QXLWorker, and is passed back via
async_complete.
Added api:
QXLWorker:
update_area_async
add_memslot_async
destroy_surfaces_async
destroy_primary_surface_async
create_primary_surface_async
destroy_surface_wait_async
QXLInterface:
async_complete
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For each callback in QXLWorker, for example QXLWorker::update_area, add
a direct call named spice_qxl_update_area.
This will (a) remove the pointless indirection and (b) make shared
library versioning alot easier as we'll get new linker symbols which
we can tag with the version they appeared in the shared library.
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This patch adds symbol versions to the spice server library. Each
symbol which is exported by libspice-server gets tagged with the
(stable) version where it appeared first. This way the linker and rpm
are able to figure which version of the spice-server libary is required
by a particular qemu binary/package.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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When qemu creates a channel, reds.c contains code to check the
minor/major channel versions known to QEMU (ie the ones that were
current in spice-server when QEMU was compiled) and to compare these
versions against the current ones the currently installed spice-server
version.
According to kraxel [1], the rules for these interface numbers are:
"The purpose of the versions is exactly to avoid the need for a new
soname. The rules are basically:
(1) You add stuff to the interface, strictly append-only to not break
binary compatibility.
(2) You bump the minor version of the interface.
(3) You check the minor version at runtime to figure whenever the
added fields contain valid stuff or not.
An example is here (core interface, minor goes from 2 to 3, new
channel_event callback):
http://cgit.freedesktop.org/spice/spice/commit/?id=97f33fa86aa6edd25111b173dc0d9599ac29f879
"
The code currently refuses to create a channel if QEMU minor version is
less than the current spice-server version. This does not correspond
to the intended behaviour, this patch changes to fail is qemu was compiled
with a spice-server that is *newer* than the one currently installed. This
case is something we cannot support nicely.
[1] http://lists.freedesktop.org/archives/spice-devel/2011-July/004440.html
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red_handle_drawable_surfaces_client_synced was called only from red_pipe_add_drawable, while it
should also be called from red_pipe_add_drawable_after. Otherwise, the client
might receive a command with a reference to a surface it doesn't hold and crash.
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red_pipe_add_drawable can lead to removal of drawables from current tree
(since it calls red_handle_drawable_surfaces_client_synced), which can
also lead to releasing these drawables.
Before the fix, red_current_add_equal, called red_pipe_add_drawable,
without assuring afterwards that the drawables it refers to are still alive or
still in the current tree.
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qemu calls spice_server_migrate_switch even if it didn't do a
spice_server_migrate_info first. Fix the resulting error by not pushing
a switch host tag to the pipe in this case, and add a check anyway in the
marshalling code just in case.
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cleared (on disconnect)
same as commit 74a9d10af96f4d7c8c1b1d7fca124a8df9180787 for cursor channel
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cleared (on disconnect)
fixes "display_channel_release_item: panic: invalid item type"
Before changing the red_worker to use the red_channel interface, there
was a devoted red_pipe_clear routine for the display channel and cursor channel.
However, clearing the pipe in red_channel, uses the release_item callback
the worker provided. This callback has handled only resources that need to be released
after the pipe item was enqueued from the pipe, and only for pipe items that were set in
red_channel_init_send_data.
This fix changes the display channel release_item callback to handle all types of
pipe items, and also handles differently pushed and non-pushed pipe items.
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On migration, destroy_surfaces is called from qxl (qxl_hard_reset), before the device was loaded (on destination).
handle_dev_destroy_surfaces led to red_process_commands, which read the qxl command ring
(which appeared to be not empty), and then when processing the command
it accessed unmapped memory.
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In addition (1) make handle_dev_destroy_surfaces call red_release_cursor
(2) call red_wait_outgoing_item(cursor_channel) only after adding msgs to pipe
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When the worker was stoped, the cursor was copied from guest ram to the host ram,
and its corresponding qxl command was released.
This is unecessary, since the qxl ram still exists (we keep references
to the surfaces in the same manner).
It also led to BSOD on guest upon migration: the device tracks cursor set commands and it stores
a reference to the last one. Then, it replays it to the destination server when migrating to it.
However, the command the qxl replayed has already been released from the pci by the original
worker, upon STOP.
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This reverts commit 456ff9f8d5d27ac763e89e67a100661084695dc5.
That patch just disabled the smartcard channel completely because
the check was done *before* the initialization of the qemu smartcard
devices, not after.
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red_worker was using some share/unshare stream_buf functions whose
body is empty. This commit removes them and their use.
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According to spice.proto the smartcard channel can receive acks and any
other message defined in BaseChannel. While the spicec implementation didn't
send an ACK spice-gtk does, so handle it.
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The C specification reserves use of identifiers starting with __
to the compiler so we shouldn't use one such symbol.
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These messages allow the guest to send the audio device volume to the
client. It uses an arbitrary scale of 16bits, which works good enough
for now.
Save VolumeState in {Playback,Record}State, so that we can send the
current volume on channel connection.
Note about future improvements:
- add exact dB support
- add client to guest volume change
Updated since v2:
- bumped record and playback interface minor version to allow
conditional compilation
Updated since v1:
- sync record volume on connection too
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static, remove inline, add (void), and empty line after function variables.
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SASL functions will be released with 0.9.0
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CC test_playback.o
test_playback.c: In function ‘playback_timer_cb’:
test_playback.c:56:5: warning: implicit declaration of function ‘gettimeofday’
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Because we use c99: stdbool.h, inttypes.h, bool, variadic macros, // comments, ...
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There is only one user of get_time_stamp from spice_common.h so
it's not really useful to keep it there.
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spice_common.h provides an ASSERT macro, no need to duplicate it
in many places. For now client/debug.h keeps its own copy since
debug.h and spice_common.h have clashes on other macros which are
trickier to unify.
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With -Wpointer-arith, gcc complains about void pointer arithmetic.
This is not a big deal with gcc, but could be with other compilers,
so it's better to cast to char */uint8_t * before doing the
arithmetic on such pointers.
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