Spring RTS Engine

The game should support a mouse cursor drawn directly by the graphics hardware (like the regular cursor on your desktop) rather than drawing its own cursor using OpenGL. This would make the game much easier to operate when the FPS drops below 60.

Anyone willing to patch this?

Not hiding the hardware cursor and not painting the OpenGL cursor is easy. A slightly trickier part is uploading the cursor bitmaps to Xorg so that the right kind of cursor appears. Another issue to consider is that input cannot be grabbed and that one needs to read the cursor position directly, rather than calculating coordinates (this most likely requires fairly big changes in source code).

A side benefit of not grabbing the input is that Alt+Tab, Alt+F4 and other window manager shortcuts will work like they should.

AFAIK Spring doesn't grab input by default, unless it's in fullscreen mode. (There is an action "grabinput" though which you can bind to a key to grab input...)

The disadvantage of not grabbing input is that stuff like alt doesn't work anymore in-game, because the window manager intercepts it.

A few issues with windowed mode:
- There are hangs that last for several minutes, during which the desktop is completely unresponsive (fullscreen works fine).
- Scrolling the map is very difficult (have to position the cursor on window edges, not over).
- It still uses software cursors.

Alt, however, works fine on my desktop (for area builds at least).

EDIT: the hangs also seem to appear in full screen mode now and the Nvidia driver is displaying "WAIT" warnings in log. I suspect that my GPU is dying. Maybe I'll throw some money at the problem and get a new one...

I play in windowed mode with grabmouse bound to alt+q and it works like a charm. I also set SDL_MOUSE_RELATIVE=0 so my mouse speed doesn't change win grabbed/full screen modes.

All I miss now is the thumb buttons.

Now I got thumb buttons too with 'imwheel'. Tutorial will follow when there's no bugs left with the setup.