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Re: Should we double-buffer by default? [message #4064 is a reply to message #4058]

Wed, 19 July 2006 08:34

unodgs
Messages: 1367
Registered: November 2005
Location: Poland

Ultimate Contributor

luzr wrote on Tue, 18 July 2006 17:57

I believe that double-buffering does not do memory<->GPU transfers, on decent card with good driver...

I've found on usenet:

Quote:

Bitmaps created by CreateCompatibleBitmap() are managed by the video driver. They may or may not be in video memory.

John - Microsoft Developer Support

So if the backbuffer is created in system memory (maybe from unknown reasons on my duron it was) gfx<->memory transfer speed is important.

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[Message index]

		Should we double-buffer by default? By: mirek on Tue, 18 July 2006 15:23
		Re: Should we double-buffer by default? By: mirek on Tue, 18 July 2006 15:31
		Re: Should we double-buffer by default? By: unodgs on Tue, 18 July 2006 15:56
		Re: Should we double-buffer by default? By: mirek on Tue, 18 July 2006 16:36
		Re: Should we double-buffer by default? By: unodgs on Tue, 18 July 2006 23:43
		Re: Should we double-buffer by default? By: mirek on Tue, 18 July 2006 23:57
		Re: Should we double-buffer by default? By: mirek on Wed, 19 July 2006 00:42
		Re: Should we double-buffer by default? By: unodgs on Wed, 19 July 2006 08:09
		Re: Should we double-buffer by default? By: unodgs on Wed, 19 July 2006 08:34
		Re: Should we double-buffer by default? By: mirek on Wed, 19 July 2006 09:01
		Re: Should we double-buffer by default? By: unodgs on Wed, 19 July 2006 10:09
		Re: Should we double-buffer by default? By: mirek on Wed, 19 July 2006 11:01
		Re: Should we double-buffer by default? By: unodgs on Wed, 19 July 2006 11:18
		Re: Should we double-buffer by default? By: mirek on Wed, 19 July 2006 11:47
		Re: Should we double-buffer by default? By: unodgs on Wed, 19 July 2006 16:25
		Re: Should we double-buffer by default? By: mirek on Wed, 19 July 2006 16:43
		Re: Should we double-buffer by default? By: fudadmin on Wed, 19 July 2006 17:59
		Re: Should we double-buffer by default? By: mirek on Wed, 19 July 2006 18:56
		Re: Should we double-buffer by default? By: fudadmin on Wed, 19 July 2006 19:23
		Re: Should we double-buffer by default? By: mirek on Wed, 19 July 2006 21:14
		Re: Should we double-buffer by default? By: fudadmin on Fri, 21 July 2006 04:52
		Re: Should we double-buffer by default? By: mirek on Fri, 21 July 2006 10:44
		Re: Should we double-buffer by default? By: mirek on Fri, 21 July 2006 12:10
		Re: Should we double-buffer by default? By: fudadmin on Wed, 19 July 2006 19:38
		Re: Should we double-buffer by default? By: mr_ped on Wed, 19 July 2006 15:04

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