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Home » U++ Library support » Draw, Display, Images, Bitmaps, Icons » bug in ImageBuffer::Line() and operator[]

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Re: bug in ImageBuffer::Line() and operator[] [message #14711 is a reply to message #14708]

Mon, 10 March 2008 09:36

mirek is currently offline

mirek
Messages: 14267
Registered: November 2005

Ultimate Member

mdelfede wrote on Sun, 09 March 2008 17:46

luzr wrote on Sun, 09 March 2008 22:28

mdelfede wrote on Sun, 09 March 2008 16:21

AFAIK ImageBuffer::Line[] (and consequently operator[]), which should return a writeable RGBA* do pick the ImageBuffer container
wiping its contents.
That makes Line() and operator[] quite useless....

Ciao

Max

I doubt it. Many things would not work if that would be the case...

Mirek

Uhmmm... I'll check it more in depth.... Somewhere my ImageBuffer is loosing its contents; it seemed to me that was just before getting RGBA pointer, but I may be wrong.

EDIT : Sorry for the wrong bug.... It was again the implied conversion between ImageBuffer and Image which wiped ImageBuffer.
I think we should really add Draw::DrawImage(ImageBuffer...) variants OR at least have some sort of message telling that
ImageBuffer was picked.

Max

I think the main problem here is that it is too easy to use ImageBuffer outside of its domain.

Orginally, this was only meant to be used as local variable to create or alter Image. In that scenario there are little problems... Conversion from/to Image is very fast. However, DrawImage for ImageBuffer would be quite slow.

Mirek

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[Message index]

		bug in ImageBuffer::Line() and operator[] By: mdelfede on Sun, 09 March 2008 21:21
		Re: bug in ImageBuffer::Line() and operator[] By: mirek on Sun, 09 March 2008 22:28
		Re: bug in ImageBuffer::Line() and operator[] By: mdelfede on Sun, 09 March 2008 22:46
		Re: bug in ImageBuffer::Line() and operator[] By: mirek on Mon, 10 March 2008 09:36
		Re: bug in ImageBuffer::Line() and operator[] By: mdelfede on Mon, 10 March 2008 11:19
		Re: bug in ImageBuffer::Line() and operator[] By: mirek on Wed, 12 March 2008 14:45
		Re: bug in ImageBuffer::Line() and operator[] By: nixnixnix on Wed, 16 April 2008 03:05
		Re: bug in ImageBuffer::Line() and operator[] By: mirek on Wed, 16 April 2008 13:29
		Re: bug in ImageBuffer::Line() and operator[] By: nixnixnix on Thu, 17 April 2008 21:40
		Re: bug in ImageBuffer::Line() and operator[] By: mirek on Thu, 17 April 2008 21:44
		Re: bug in ImageBuffer::Line() and operator[] By: nixnixnix on Thu, 17 April 2008 22:50
		Re: bug in ImageBuffer::Line() and operator[] By: mirek on Wed, 23 April 2008 10:25
		Re: bug in ImageBuffer::Line() and operator[] By: mirek on Wed, 23 April 2008 10:34
		Re: bug in ImageBuffer::Line() and operator[] By: nixnixnix on Wed, 23 April 2008 19:18
		Re: bug in ImageBuffer::Line() and operator[] By: mirek on Wed, 23 April 2008 21:04

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