Most of xfreerdp's hw gdi callbacks did the the same X11 drawing operation
twice: Initially on the primary pixmap to keep the back buffer up to date
and then directly on the window in order to see the result.
This sequence is followed by a call to gdi_InvalidateRegion() to mark the
rectangular area of the drawing operation.
Since in xfreerdp's current design (or better current evolved state) the
backbuffer pixmap is obligatory, all drawing operations directly targeting
the window are redundant because of the subsequent EndPaint (mapped to
xf_hw_end_paint) where the damaged region is copied from the backbuffer
to the drawable.
- removed X11 drawing operations which directly target the window drawable
- fixed some errors in the calculation of the required update regions
rpc_send_enqueue_pdu returns -1 on error but the type of error isn't
distinguishable. Therefore make sure that the buffer gets always freed.
The only exception to this is when the pdu was already queued. Then the
dequeuing function should take care of freeing the buffer when
processing the pdu.
The fix in #2130 eliminates the problem when connecting over a gateway
but introduces other problems server side and client side (client/server
can't detect anymore when a TCP connection was closed).
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>
Added a condition to redraw a rect only when region is invalidated. For
example. this avoids a redraw when only the cursor changes on the
remote machine.
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>
