A call to setlocale can invalidate the string a previous setlocale call
returned. Instead of saving a pointer we copy the returned string now. This,
for example, fixes invalid memory access on my system.
See de8da01b0e for the commit introducing the
invalid memory access.
This is to fix bug #3615148 - "ALL: sscanf("%f"), atof() etc. not
portable due to Locale"
The side effect of setlocale("") is to change the active locale
from the default of "C" to the detected system locale, but this
changes the behaviour of sscanf() and several other functions
in a system dependent and non-portable way. This has caused
bugs in the ZVISION engine when running Zork Nemesis.
The solution is to restore the default "C" locale after the call
to get the language.
Thanks to criezy for working out this fix.
The former code (incorrectly) assumed that the getDefaultGraphicsMode returns
the index in the table returned by getSupportedGraphicsModes. Now the correct
ID is searched and then used.
Sadly this also requires us to extend GraphicsManager for this SDL specific
feature. However, since that's only used in the SDL backend and Tizen it
should be fine for now...
The bug in question is "SDL/OpenGL: Crash when switching renderer backend". To
fix it I added a stupid graphics state copying to the SDL backend, in case the
graphics manager is switched. The implementation of this is considered a pure
workaround, no one should ever do it like this in reality... I just want to
die when looking at this... Not sure why I actually committed it.
Anyway it at least makes the OpenGL backend testable for those who do not
want to fiddle with the config file directly.
This tries to make our code a bit more compliant with our code formatting
conventions. For future use, this is the command I used:
git ls-files "*.cpp" "*.h" | xargs sed -i -e 's/[ \t]*$//'
This is used to provide default implementations for createConfigWriteStream
and createConfigReadStream, which can be used by most backends.
Note that backends can still override createConfigRead/WriteStream;
this could be useful if settings on some port are not stored in a
regular file (think 'Windows registry', for a hypothetical example).
