0001421: OpenGL stacking drawn frames while out of focus

MantisBT - Zandronum
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ID	Project	Category	View Status	Date Submitted	Last Update
0001421	Zandronum	[All Projects] Bug	public	2013-07-21 18:05	2024-03-02 07:45

Reporter	Tsukiyomaru0
Assigned To
Priority	low	Severity	minor	Reproducibility	always
Status	closed	Resolution	no change required
Platform	PC	OS	Windows	OS Version	XP SP3
Product Version	1.1.1
Target Version		Fixed in Version

Summary	0001421: OpenGL stacking drawn frames while out of focus
Description	From what I noticed, the OpenGL stacks all frames drawn from the minute Candronum is put out of focus to the moment it is brought back to focus. However, the longer it stays out of focus, the slower the computer will run, until the maximum PC FPS reaches 0.1 frames per second, effectively freezing it.
Steps To Reproduce	- Open Zandronum (specially in an online multiplayer server) - Leave it running - Change focus to another window - Keep doing something else for a while. You will notice your cursor will "skip" quite often.
Additional Information	While Zandronum uses a lot of CPU, this issue does not happen in Software. Why? Software doesn't "stack" frames and actively draws them even while the game is out of focus. This also aid if you are chatting with someone in something else (like Skype) while awaiting for the next LMS or Survival round, for you can see what is going on there.
Tags	OpenGL, zandronum
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Issue History
Date Modified	Username	Field	Change
2013-07-21 18:05	Tsukiyomaru0	New Issue
2014-06-14 17:27	Watermelon	Note Added: 0009305
2014-06-14 17:27	Watermelon	Status	new => feedback
2014-09-10 06:25	Tsukiyomaru0	Note Added: 0010258
2014-09-10 06:25	Tsukiyomaru0	Status	feedback => new
2014-09-18 16:02	Watermelon	Note Added: 0010275
2024-03-02 07:45	Ru5tK1ng	Note Added: 0023240
2024-03-02 07:45	Ru5tK1ng	Status	new => closed
2024-03-02 07:45	Ru5tK1ng	Resolution	open => no change required

Notes