One deadlock and one segfault.
Patch 1:
Software X11 Evas Engine: Fix deadlock
Summary:
The patch bc6e8d2692 introduced a callback responsible to notify the pixels
that were sent to the X server. Since all EFL rendering is done by another
thread, the callback should be called from the main thread context.
To achieve this behaviour evas_software_x11_region_push_hook_call()
was using ecore_thread_main_loop_begin(), which may cause deadlocks, since
evas mainloop waits for the render thread and the render thread waits
the mainloop.
In order to fix this problem, the function
ecore_main_loop_thread_safe_call_async() will be used to
schedule the callback to run in the main loop context.
Since a callback is schedule to run in async manner, the pixels that
were sent to the X server must not be deleted until the user is informed.
In order to avoid more mallocs(), this patch adds the support for refcounts to the
X_Output_Buffer and Xcb_Output_Buffer.
Patch 2:
Ecore_Evas VNC: Use the image size to create the buffer.
In same cases they may differ and may lead to a segfault, since
memcpy() causes a buffer overrun.
Reviewers: bdilly, raster
Reviewed By: raster
Subscribers: cedric, jpeg
Differential Revision: https://phab.enlightenment.org/D4323
8040d20f90