Hi,
So we have our own log function that already use, it has groups and loglevel (error, warn, info, debug, …), and is able to output to different targets (file, console, …).
I would like to use SDL_LogSetOutputFunction to make SDL logs go through our system (adding a SDL group for them). Problem is our codebase is in C++ and I am a bit unsure how to tie things.
I am also unsure exactly how the function SDL expect should look. Has anyone used it and has any guidance to offer?
Here is one way to do something like this in C++:
class Logger
{
public:
void Log(const char *message);
};
static Logger log;
static void LogSDL(void *userdata, int category, SDL_LogPriority priority, const char *message)
{
Logger *logger = reinterpret_cast<Logger *>(userdata);
logger->Log(message);
}
SDL_LogSetOutputFunction(LogSDL, &log);
If your logging object is dynamically allocated, make sure you call SDL_LogGetOutputFunction() to save the original logging function and reset that with SDL_LogSetOutputFunction() before your logging object is deleted.
If you have a logging function instead of a class, then this is even easier, you can just pass that to SDL_LogSetOutputFunction() and set the userdata parameter to nullptr and ignore it.
Thanks! I think I understand now. I was under the impression I would need to use some of those extern C commands but it seems it’s not needed. I will try and report if it works!