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Re: BufferPainter now MT optimized [message #49180 is a reply to message #49163]

Tue, 02 January 2018 15:34

Tom1
Messages: 1305
Registered: March 2007

Ultimate Contributor

Hi Mirek,

Sorry for the alarm. This is likely my own fault in one way or another:

While attempting to create a testcase, I discovered that my complex polyline optimization routines might end up skipping the stroking of polylines, e.g. if the lines are too narrow to display at specific zoom levels. This in turn leaves the entered vertices (Move()/Line()) in the Painter unused and probably cause trouble afterwards in the MT optimized code while it is fine with ST code. I was able to fix the MT rendering symptoms by simply enclosing the my polyline code within a Begin()/End() pair in the BufferPainter.

Thanks and have a nice 2018!

Best regards,

Tom

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[Message index]

		BufferPainter now MT optimized By: mirek on Tue, 26 December 2017 11:52
		Re: BufferPainter now MT optimized By: Tom1 on Fri, 29 December 2017 13:07
		Re: BufferPainter now MT optimized By: Tom1 on Fri, 29 December 2017 16:00
		Re: BufferPainter now MT optimized By: mirek on Fri, 29 December 2017 17:39
		Re: BufferPainter now MT optimized By: Tom1 on Tue, 02 January 2018 15:34
		Re: BufferPainter now MT optimized By: mirek on Tue, 02 January 2018 16:51
		Re: BufferPainter now MT optimized By: Tom1 on Wed, 03 January 2018 09:04
		Re: BufferPainter now MT optimized By: Tom1 on Sat, 06 January 2018 11:33
		Re: BufferPainter now MT optimized By: mirek on Sat, 06 January 2018 13:14
		Re: BufferPainter now MT optimized By: Tom1 on Sat, 06 January 2018 15:45
		Re: BufferPainter now MT optimized By: mirek on Sat, 06 January 2018 20:35
		Re: BufferPainter now MT optimized By: mirek on Sat, 06 January 2018 21:16
		Re: BufferPainter now MT optimized By: Tom1 on Sun, 07 January 2018 00:06
		Re: BufferPainter now MT optimized By: mirek on Sun, 07 January 2018 00:24
		Re: BufferPainter now MT optimized By: Tom1 on Mon, 08 January 2018 10:37

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