after several days of beating head on desk, i gave up trying to find
the exact cause of some gifs not rendering right as animated gifs due
to the loader. it had something to do with dispose mode handling and
which frame it was applied to. i noticed the structure made it also
hard to fix, so this re-structures the entire thing with cleaner code,
less code AND more comments, with a limited memory cache (512k) for
previous frames per image (to avoid eating up huge memory blobs for
big/long animations - though at the expense of cpu), and with some
notes for future fixes - like fixing the "load 2 copies of the same
animated gif" issue... that's another day.
this does fix https://phab.enlightenment.org/T443 along with many
other things.
Summary: This patch start returning Eina_Bool for deleting style from edje edit object to catch those error.
Reviewers: cedric
CC: reutskiy.v.v, seoz
Differential Revision: https://phab.enlightenment.org/D290
This centralizes the place where we have to wait for the init to have
finished before first using the compositor. It's also part of the later
step of hiding Ecore_Wl_* private structs.
Nothing extraordinary here.
Most potential crashes are extremely unlikely.
- Fix CID 1113444
- Fix CID 1113442
- Fix CID 1113441 (Logically dead code, can not be NULL)
- Fix CID 1113440: Explicit null dereferenced
This is actually an impossible situation.
Fixed by checking for nullity and printing out some error
messages instead of just crashing.
- Fix CID 1113439: Dereference after null check
Logically impossible code as both idxpath and datapath
must be either set or null at the same time.
Change the if logic to tell Coverity there's no bug.
- Fix CID 1113438 (Argument cannot be negative)
Fix wrong check of return value from shm_open.
- Fix CID 1113437 (Argument cannot be negative)
Fix wrong check of return value from shm_open.
- Fix CID 1113436 (Dereference null return value)
This case really shouldn't happen.
But the extra check does not hurt.
- Fix CID 1113435 (Dereference before null check)
Check for nullity after map open.
- Fix CID 1113434 (Extra sizeof expression)
Debug buggy debug tool :)
- Fix CID 1113433 (Uninitialized scalar variable)
Insignificant issue: only prints wrong debug logs :)
- Fix CID 1113431 (Uninitialized scalar value)
Check if (!found) only to print out logs. Not a big deal
if found was invalid.
- Fix CID 1039462 (Logically dead code)
Many Edje_Edit API can fail and don't return any error information. This patch start returning
Eina_Bool for setters on dragable confine and event params to catch those error.
Reviewers: cedric
Reviewed By: cedric
CC: seoz
Differential Revision: https://phab.enlightenment.org/D274
Signed-off-by: Cedric Bail <cedric.bail@samsung.com>
At the end of the ecore_wl_init() function, send a sync request to the
server, and add a callback listener to the "done" event. When this event
is received, we are sure that all the registry bind requests done so
far were processed already, and that the registry and globals are
available and can be used.
Now, on the functions that request interfaces or registry, we call
_ecore_wl_init_wait(), which will check if the callback was received
already (that means that all requests inside the init were processed).
If it was not yet, then we wait until receiving that callback, before
returning the requested data.
When you open a theme, it is very likely that most of the data in it will be needed
at some point, that's why it is a good idea to tell it in advance to the kernel so
it could load them if it has some spare ressource.
We can't just blindly turn EINA_FILE_WILLNEED on any file or a wrong eet file would
be loaded in memory when we don't need it. So we shall keep the sequential load until
we are sure that the file is correct and then explicitely tell the kernel that the
rest of the data should be loaded in ram.
Improve stability, performance and overall support of
evas cserve2.
In particular:
- Implement shared indexes and memory pools to share cserve's
internal state with all clients. Apps can then scan these
indexes and avoid waiting for socket responses when loading
resources.
- Implement crash resiliency in evas. If cserve2 crashes, apps
can safely reconnect and continue working as if nothing
happened.
- Implement support for the GL engine (very basic support so
far, "just works").
- Improve performance by reusing the scalecache logic.
Glyphs were previously using 3 shared buffers, now reduce to 2:
- Memory pool (mempool) containing the glyph drawable data
- Index table (Shared_Index / array) containing only the
indexes of the buffers in the mempool
- Glyph_Data table (array) containing the glyphs descriptors
AS WELL as the buffer indexes.
So, we just merge the two index tables into one by using directly
objects of type Glyph_Data for the referencing of the mempool
buffers.
One socket message was sent per each glyph used ... which means
a LOT of messages when text is being redrawn.
Reduce this flow of messages by triggering send() only when
50+ items are being used.
Btw, USED is a bit useless as there is no UNUSED equivalent.
Also, slightly improve debug logs.
In the client, string_get() can cause a remapping of the
strings index & mempool. This means that all pointers to
string data are invalid past that call.
Solution: add a safe_get() function that prevents remap
during search. It might prove faster also, but will
return NULL more often.
SIGTERM and SIGQUIT don't need to be caught.
the proper signal to ask cserve2 to exit cleanly is SIGINT.
enlightenment_start (or systemd) should be responsible for
restarting in case of crash / unexpected termination.
cserve2 will not restart if killed with signal SIGINT,
as it will then exit with return code 0 (normal)
These operations have tons of side effects and it's a lot
easier to just avoid doing them. Now, repacking will always
need to happen as applications will add/delete strings and
items, but the less frequent, the better :)
Also, align most arrays & mempools to 32K instead of the
default page size (4K). This will also reduce resizes.
Try to reconnect to cserve2 if the socket connection was lost.
Resend some messages if necessary.
Images reload seems to be working.
Actually, the images don't change over time, so the clients just
keep the previous references to their images.
FONT RELOAD IS NOT WORKING:
- Crashes
- Invalid glyph data
- Infinite loop in _glyph_map_remap_check()
Root cause:
When new glyphs are requested from the server, they are added to
the mempool. So it is necessary to remap the font.
Unfortunately, in case of server reboot, we did not keep the mempool
so the old glyphs that were not requested again will not be valid.
Simply call the appropriate cache2 functions when possible
and check for usage of cache2 whenever an evas_cache_ function
is called.
This effectively adds cserve2 image (data) load support for the
GL engines. Fonts were already working out-of-the-box.
cserve2 does not support animated Gifs, as the animated icon
logic doesn't match cserve2 logic.
Also, there is probably no need to cache these into shared
buffers anyways :)
Solution: fallback to normal cache (and delete current entry in
the client)
Be more careful when selecting the original image for scaling.
Most load opts must remain the same, only smooth can be toyed with.
Also, fix alpha when scaling.
Let's reuse the logic from scalecache and call cserve2
functions when the scalecache should be used.
So, now, cserve2 server will not scale any image... This is
too computationally intensive for the server's main thread.
This is not optimal but makes a hell of a lot more sense for
the moment. (since cserve2 manages the SHM segments)
High-level problem:
cserve2 does not support load_opts properly when opening an image.
As a result, when (pre)loading a JPEG file with specific load
options (eg. w, h, region and orientation), the image buffer might
have the wrong dimensions.
So, we need to use load_opts when computing file hash key.
And, pass these load options to the loader slave,
and use them while OPENING the image. This will set
properly the geometry.
Fixes test "Preload and Prescale" in elementary_test.
Pass around "animated" flag for images that can be animated.
Fallback to local cache if the image is animated.
Implementing support for animated images in cserve2 does
not seem to make a lot of sense considering each frame must
be requested independently in real time,... and to be honest
there doesn't seem to be any valid use case anyway :)
Carsten Haitzler
Sung W. Park
m.biliavskyi
Albin Tonnerre
Rafael Antognolli
Chris Michael
Jean-Philippe Andre
Cedric Bail