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Re: Draw::DrawImageOp optimization bug [message #19353 is a reply to message #19352]

Fri, 28 November 2008 13:27

mirek is currently offline

mirek
Messages: 13980
Registered: November 2005

Ultimate Member

rylek wrote on Fri, 28 November 2008 07:15

Hi there!

The 2000 x 2000 block limitation is a problematic old hack I used long ago when I had trouble with GDI processing larger areas at once.

Actually, I am afraid you are not up-to-date about this one...

This is not the "old Image code" (although it can fix the same problem as byproduct).

Current DrawImage really does something new, the RLE compression. Also, but splitting the process to bands, it should help with memory consumption - e.g. imagine printing some documentation from RichText, where screenshots are usually rescaled to much bigger size. Banding pushes them in bands, means we do not need the memory for the "big" results.

And more, "RLE compression" (detecting uniform color blocks) has the potential to reduce the memory footprint even in the printer.

Mirek

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[Message index]

		Draw::DrawImageOp optimization bug By: Tom1 on Thu, 27 November 2008 13:52
		Re: Draw::DrawImageOp optimization bug By: mirek on Fri, 28 November 2008 08:56
		Re: Draw::DrawImageOp optimization bug By: Tom1 on Fri, 28 November 2008 10:23
		Re: Draw::DrawImageOp optimization bug By: rylek on Fri, 28 November 2008 13:15
		Re: Draw::DrawImageOp optimization bug By: mirek on Fri, 28 November 2008 13:27
		Re: Draw::DrawImageOp optimization bug By: mirek on Fri, 28 November 2008 13:29
		Re: Draw::DrawImageOp optimization bug By: Tom1 on Fri, 28 November 2008 13:54
		Re: Draw::DrawImageOp optimization bug By: mirek on Fri, 28 November 2008 14:27
		Re: Draw::DrawImageOp optimization bug By: mirek on Fri, 28 November 2008 21:02
		Re: Draw::DrawImageOp optimization bug By: mirek on Sat, 29 November 2008 12:54
		Re: Draw::DrawImageOp optimization bug By: Tom1 on Mon, 01 December 2008 11:25
		Re: Draw::DrawImageOp optimization bug By: mirek on Mon, 01 December 2008 12:12
		Re: Draw::DrawImageOp optimization bug By: Tom1 on Mon, 01 December 2008 12:49
		Re: Draw::DrawImageOp optimization bug By: mirek on Mon, 01 December 2008 12:57
		Re: Draw::DrawImageOp optimization bug By: Tom1 on Mon, 01 December 2008 13:50
		Re: Draw::DrawImageOp optimization bug By: mirek on Mon, 01 December 2008 14:25
		Re: Draw::DrawImageOp optimization bug By: mirek on Mon, 01 December 2008 13:12
		Re: Draw::DrawImageOp optimization bug By: mirek on Mon, 01 December 2008 12:41
		Re: Draw::DrawImageOp optimization bug By: mirek on Mon, 01 December 2008 13:14
		Re: Draw::DrawImageOp optimization bug By: Tom1 on Mon, 01 December 2008 14:37
		Re: Draw::DrawImageOp optimization bug By: mirek on Mon, 01 December 2008 14:52
		Re: Draw::DrawImageOp optimization bug By: mirek on Tue, 02 December 2008 19:15
		Re: Draw::DrawImageOp optimization bug By: Tom1 on Tue, 02 December 2008 21:16
		Re: Draw::DrawImageOp optimization bug By: mirek on Tue, 02 December 2008 21:46
		Re: Draw::DrawImageOp optimization bug By: mirek on Wed, 03 December 2008 12:14
		Re: Draw::DrawImageOp optimization bug By: Tom1 on Wed, 03 December 2008 15:03
		Re: Draw::DrawImageOp optimization bug By: mirek on Wed, 03 December 2008 15:21
		Re: Draw::DrawImageOp optimization bug By: Tom1 on Wed, 03 December 2008 15:36
		Re: Draw::DrawImageOp optimization bug By: Tom1 on Wed, 03 December 2008 17:11
		Re: Draw::DrawImageOp optimization bug By: mirek on Thu, 04 December 2008 10:22
		Re: Draw::DrawImageOp optimization bug By: Tom1 on Thu, 04 December 2008 11:07
		Re: Draw::DrawImageOp optimization bug By: mirek on Thu, 04 December 2008 11:36
		Re: Draw::DrawImageOp optimization bug By: Tom1 on Thu, 04 December 2008 12:09
		Re: Draw::DrawImageOp optimization bug By: mirek on Thu, 04 December 2008 12:36
		Re: Draw::DrawImageOp optimization bug By: Tom1 on Thu, 04 December 2008 13:09
		Re: Draw::DrawImageOp optimization bug By: mirek on Thu, 04 December 2008 15:53
		Re: Draw::DrawImageOp optimization bug By: Tom1 on Thu, 04 December 2008 16:07
		Re: Draw::DrawImageOp optimization bug By: mirek on Thu, 04 December 2008 17:46
		Re: Draw::DrawImageOp optimization bug By: Tom1 on Fri, 05 December 2008 11:05
		Re: Draw::DrawImageOp optimization bug By: mirek on Fri, 05 December 2008 11:20
		Re: Draw::DrawImageOp optimization bug By: Tom1 on Fri, 05 December 2008 12:13
		Re: Draw::DrawImageOp optimization bug By: mirek on Thu, 04 December 2008 10:19

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