Best graphics library
lazarus / 39-Graphics

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Mando · 2011-03-17 09:47

Hi.

I developing a simple image editor and I need to rotate, cut, change
bright a contrast, etc.... And direct access to pixels, like delphi
scanline to do my own functions.

I need know what library is the best to do it. I try LazRGBGraphics
and TBGRABitmap.

There is any more? And Whet is the best?


thanks

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Chronos · 2011-03-17 15:24

What is best depends on point of view. Huge libraries which tries to
handle everything tend to be slow and complex because of generality.
Small libraries are fast and easy to learn but can be used only for
specific applications.

Then what would be main aspects for comparison?
Processing speedSupport for bitmap or vector graphicsSupport for file
formatsSupport for multiple pixel color models and various bit
depthAmount of various graphic drawing functionsPortability across
platformsSize of development team and sustainability
There are some "one man show" libraries and others with teams. There
are some libraries ported from Delphi and others ported from C.

LCL
LazRGBGraphics http://wiki.freepascal.org/LazRGBGraphics
BGRABitmap http://wiki.freepascal.org/BGRABitmap
AggPas http://www.crossgl.com/aggpas/
fpVectorial http://wiki.freepascal.org/fpvectorial
Andorra 2D http://andorra.sourceforge.net/
Graphics32 http://graphics32.org
...

Which one is the best? Perhaps none. Graphics32 is pretty fast but not
portable and don't have custom font rendering.
If you want to create simple graphic editor you should have a look at
http://wiki.freepascal.org/LazPaint which use BGRABitmap.
LazRGBGraphics is used by
http://wiki.freepascal.org/Lazarus_Image_Editor.

You have to try for yourself and find out which one will serve best
for your needs.

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Mando · 2011-03-17 17:44

Thanks for your reply.

I'll try to do a test project.

Regards

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BlueIcaro · 2011-03-17 19:27

Here you have another one

Allegro

/BlueIcaro

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circular · 2011-03-20 22:37

AggPas is very powerful.

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jixian.yang · 2011-03-21 02:45

rgbdrawutils.pas is simplest, it provides a scanline for a new bitmap
and it is improving.
https://lazarus-ccr.svn.sourceforge.net/svnroot/lazarus-
ccr/applications/lazimageeditor

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Chronos · 2011-03-21 06:20

We can maintain list of known graphics libraries for quick comparison
in wikipedia fashion here:
http://wiki.freepascal.org/Graphics_libraries

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mdalacu · 2011-03-21 08:02

I am using Vampyre Imaging Library , it pretty fast and stable.
http://imaginglib.sourceforge.net/

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Mando · 2011-03-21 08:43

Hi!

Thak you all for your information. I'll try to test all of them.

I will keep you informed.
regards.

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circular · 2011-03-21 15:34

Quote from: chronos on March 21, 2011, 07:20:22 amWe can maintain list
of known graphics libraries for quick comparison in wikipedia fashion
here: http://wiki.freepascal.org/Graphics_libraries

Sure. I've added BGRABitmap infos.