* This allows RemoteHost handles to still be valid and usable (if returning
empty data) when they are deleted/removed if the device is disconnected, as
well as providing better multi-thread access (they lock internally)
* Unfortunately at least one deprecated function
QDesktopWidget::screenGeometry(const QPoint &p) has no easy alternative that
works on 5.9 which is the version we have available by default on windows.
* We also only use GIT_COMMIT_HASH where necessary to avoid rebuilding many
files for no reason, including splitting version.cpp out into a separate
project as we do with VS since otherwise changing its preprocessor defines
rebuilds the whole renderdoc project.
* At the same time, move the git hash to be internal only so we don't have to
try to link version.cpp into other projects like renderdoccmd or qrenderdoc.
* This gives a one-click way to run the last capture, if it's not
complex/regular enough to be worth saving to a settings file on its own.
* Doesn't save much if you're selecting an exe as the previous exe location is
remembered, but if you also have command line parameters or a working
directory it can help.
* This means it outputs natively/properly to stdout/stderr and its output can be
redirected with pipes.
* It does mean we need to be very careful whenever it's run internally to not
pop up a command window, which happens by default.
* This option will now toggle on the behaviour to fill undefined buffer contents
with a marker value, both if they're created without data (it will be zero
filled instead) or mapped with discard (it will keep the old contents
instead).
* There were too many hard to find problems or misconceptions about the buffer
filling for it to be useful. Now it will be opt-in instead.
A new button is added to the UI so that we can cycle the currently active window when there are more windows to capture. It's like pressing the F11 button but it works on Android too.
* On linux sometimes you can't invoke a GUI application as root. To work around
this, we use renderdoccmd to register the layer if it's available, or fail if
it isn't.
baldurk