This fixes the following defects reported by covscan tool:
- client/Wayland/wlf_input.c:251: overrun-local: Overrunning array "contacts" of 10 32-byte elements at element index 10 (byte offset 351) using index "i" (which evaluates to 10).
- client/Wayland/wlf_input.c:308: overrun-local: Overrunning array "contacts" of 10 32-byte elements at element index 10 (byte offset 351) using index "i" (which evaluates to 10).
- client/Wayland/wlf_input.c:360: overrun-local: Overrunning array "contacts" of 10 32-byte elements at element index 10 (byte offset 351) using index "i" (which evaluates to 10).
- client/Wayland/wlf_input.c:251: error[arrayIndexOutOfBounds]: Array 'contacts[10]' accessed at index 10, which is out of bounds.
- client/Wayland/wlf_input.c:308: error[arrayIndexOutOfBounds]: Array 'contacts[10]' accessed at index 10, which is out of bounds.
- client/Wayland/wlf_input.c:360: error[arrayIndexOutOfBounds]: Array 'contacts[10]' accessed at index 10, which is out of bounds.
- client/Wayland/wlf_input.c:246: uninit_use_in_call: Using uninitialized value "y" when calling "wlf_scale_coordinates".
- client/Wayland/wlf_input.c:246: uninit_use_in_call: Using uninitialized value "x" when calling "wlf_scale_coordinates".
The maximal number of touches can be higher then 10, see:
https://wayland.freedesktop.org/libinput/doc/latest/touchpads.html
Let's increse the MAX_CONTACTS count and add checks to prevent usage of
uninitialized values.
Thanks to @yol and @SaschaWessel a bug in scroll step conversion
was uncovered. The RDP value ranges are inverted when scrolling
in negative direction.
The input->FocusInEvent callback implementations (normal and fast-path) have
always sent the mouse position even if the pointer was outside of the freerdp
client area. In addition xfreerdp used the wrong pointer coordinates which
were relative to the root window instead of its own.
On focus-in the pointer position must only be sent if the pointer is
currently within the program's client area. However, the clients had no way
to pass that information to input->FocusInEvent which required an API change.
- removed mouse pointer x, y parameters from input interface's FocusInEvent
- clients are responsible to call input->MouseEvent on focus-in if necessary
- fixed xfreerdp and wfreerdp accordingly
This commit does the following:
* fix the keyboard logic (which now fully works), add support for vertical mouse wheel events ;
* make the rendering a lot more efficient, by using RDP damage information to refresh only the relevant part of the buffer ;
* fix two race conditions. wlfreerdp should not crash anymore now ;
* fix shm_open() and shm_unlink() calls ;
* improve the code style.
Signed-off-by: Manuel Bachmann <tarnyko@tarnyko.net>
We split the one massive source file into multiple separate
source files and headers, just like it is done for other
clients.
We add a new "wlfInput" interface which will try to
initialize mouse and keyboard at startup. Mouse inputs
already work, keyboard inputs need further investigation.
Signed-off-by: Manuel Bachmann <tarnyko@tarnyko.net>
