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Re: High Performance Drawing [message #13430 is a reply to message #13355]

Sat, 05 January 2008 19:55

phirox is currently offline

phirox
Messages: 49
Registered: December 2007

Member

Edit: Ok problem was actually quite simply solved Embarassed

Embarassed

As a last resort I tried to compile it without debugging, it worked well then. The solution: Turn off XSyncronization by disabling the flag SYNCHRONIZE in X11App.cpp

---OLD---
I've actually come across another issue regarding high speed drawing. My program had no real speed problems until I upgraded to the latest development release.

The lay down: It looks like it doesn't effect Windows just X11. No problems with 701-dev1 and 2007.1, it starts to go really slow with 708-dev2b(I have not tried versions between those).

I've added a test case, the difference in paint update speed is huge.

I've tried for 2 days to find the core of the problem myself, but I'm at a loss. It doesn't seem to be the palette changes, or the drawlock.

Only workaround I found to make it just as fast as 2007.1 is to comment out this line in the function Draw::DrawRectOp

XFillRectangle(Xdisplay, dw, gc, x + actual_offset.x, y + actual_offset.y, cx, cy);

Which is really weird, I'm guessing something changed for the Xdisplay; dw; and gc variable or something.

Attachment: drawtest.zip
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[Updated on: Sat, 05 January 2008 23:51]

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[Message index]

		High Performance Drawing By: cbpporter on Sun, 16 December 2007 12:48
		Re: High Performance Drawing By: mirek on Sun, 16 December 2007 23:15
		Re: High Performance Drawing By: cbpporter on Mon, 17 December 2007 01:47
		Re: High Performance Drawing By: mirek on Mon, 17 December 2007 14:47
		Re: High Performance Drawing By: cbpporter on Tue, 25 December 2007 13:02
		Re: High Performance Drawing By: mirek on Wed, 26 December 2007 14:16
		Re: High Performance Drawing By: cbpporter on Wed, 26 December 2007 17:01
		Re: High Performance Drawing By: mirek on Tue, 01 January 2008 10:54
		Re: High Performance Drawing By: phirox on Tue, 01 January 2008 21:21
		Re: High Performance Drawing By: phirox on Tue, 01 January 2008 23:54
		Re: High Performance Drawing By: cbpporter on Wed, 02 January 2008 18:11
		Re: High Performance Drawing By: mirek on Wed, 02 January 2008 22:00
		Re: High Performance Drawing By: phirox on Sat, 05 January 2008 19:55
		Re: High Performance Drawing By: mirek on Sun, 06 January 2008 08:54
		Re: High Performance Drawing By: cbpporter on Wed, 23 January 2008 15:06
		Re: High Performance Drawing By: cbpporter on Wed, 23 January 2008 16:56
		Re: High Performance Drawing By: mirek on Wed, 23 January 2008 17:01
		Re: High Performance Drawing By: cbpporter on Wed, 23 January 2008 17:10
		Re: High Performance Drawing By: cbpporter on Fri, 01 February 2008 11:02
		Re: High Performance Drawing By: cbpporter on Fri, 01 February 2008 16:27

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