SFML community forums
Help => Window => Topic started by: slotdev on November 04, 2011, 02:42:24 pm
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Hi
I have a game which opens a window like this:
window1(RenderWindow(sf::VideoMode(1280,1024,32),"Window1",sf::Style::None));
Later, I re-size the window to fit the actual dimensions of the size I want (so all my graphics are done to 1280x1024@32bpp, but I might want a window of whatever size, maybe 50% size, etc).
window1.SetSize(scr1Data.right,scr1Data.bottom);
window1.SetPosition(scr1Data.left,scr1Data.top);
My problem is that I have systems where the default resolution is, for example, 800x600, but the hardware will support 1280x1024, no problem. When I try to open a window, all I get is an empty, black, window.
So how do I adjust the OS resolution (if I even need to?!) so that my window opens correctly and the program works?
Thanks
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You can change the screen resolution only if your window runs in fullscreen mode.
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You can change the screen resolution only if your window runs in fullscreen mode.
Right, I've changed that - and my framerate has dropped massively.
If I open it in a window (and manually change the resolution) it runs 60fps+ no problem, run it in fullscreen, I might get 3fps.
What is going on?!
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My game uses ~400mb of memory, and the hardware has 340mb of video memory, so I guess it is swapping stuff in and out of VRAM...but that doesn't explain why windowed mode is faster.....
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It's really strange. Could you provide a complete and minimal example that reproduces this problem?
My game uses ~400mb of memory
That's really a lot. Are you sure that all of these 400 MB go to VRAM? Is it pixel data?
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I kind of solved it. It was swapping data from system to video memory during an intensive animation.
Yes all 400mb is pixel data, I have ~60mb of PNGs loaded, and I guess when they are decompressed, that's where the 400mb comes from.