Resizing the game window produces GL errors (when much smaller than 1024x768)

[Mikhail]

There are 2 issues I've noticed recently:

1. Main menu becomes distorted when you go into windowed mode and resize game window to something smaller than 600x600. You can see this behavior on screenshots: hud_screen.png and hud_screen1.png.

2. When in-game: go into windowed mode and start resizing window to smaller size. At some point you'll get error message: "ERROR: CRenderer::EndFrame: GL errors occurred". I've attached mainllog.html to this ticket so you can view the details.

Also, as I've noticed, all ingame models are being scaled when you resize game window. Is it supposed to happen or just a glitch?

All of this behavior I've encountered playing r11863 on Gentoo ~amd64 and on Windows XP x64 (running as VirtualBox guest).

[Mikhail]

Screenshot 1

[Mikhail]

SCreenshot 2

[Mikhail]

Game log

[Erik Johansson]

The game is really not meant to be played on a screen smaller than at least 1024x768.

I'll leave this open though, as scaling the window should preferably not cause any errors, even if you scale it this small.

[Mikhail]

Yes, I understand that screen resolution smaller than 1024x768 is not quite playable. So maybe it is better to add some restrictions. For example, implement a list of supported resolutions in the Settings menu. Or maybe limit users' ability to resize game window, making it impossible to achieve such small screen size.

And what about scaling of ingame models? Is it intended to be so? Because I don't think that it would be playable when scaled down in 1280x1024 with two or three big armies on screen.

[historic_bruno]

Can you attach screenshots of the scaling behavior? Preferably before and after.

[Mikhail]

Before resizing

[Mikhail]

After resizing

[Mikhail]

Yes, here they are.

[historic_bruno]

I think the scaling you're referring to is maintaining the (vertical?) field of view. It should be possible to zoom in or out to see less or more of the world. It seems to be working as designed.

[Mikhail]

Thanks for the explanation. That's all I wanted to know.

[historic_bruno]

SDL 2.0 will have an SDL_SetWindowMinimumSize function, not sure how or if it works on every OS.

[historic_bruno]

Replying to historic_bruno:

SDL 2.0 will have an SDL_SetWindowMinimumSize function, not sure how or if it works on every OS.

This function works in Windows, but the problem is it sets the fullscreen resolution as well, if the window becomes fullscreen (and SDL_WINDOW_FULLSCREEN is used).