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Video cards with support of hardware acceleration of GDI+ under XP SP2/3 ?

Posted on 2013-05-12
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Last Modified: 2013-11-08
Dear experts

I have old written software which uses GDI+ function and works under Windows XP. It actually creates animations like text which is moving and it need video card hardware accelerations the move of the text  to look smoothly. It handle fine with almost all video cards, but for English letters, for Arabic letters it look that require significant more power.

 Could you please recommended me video card’s models which could be get on market and which support hardware acceleration of GDI+ under XP SP2/3 ? Or if the cards are not have hardware accelerated then i guess will also work if its drivers are well written especially for GDI+ .

 More detailed, I use extensive the functions like:

AlphaBlend Lib "MSIMG32.dll"
TransparentBlt Lib "MSIMG32.dll"
BitBlt Lib "gdi32"

I use DIB , i mean I create a picture with all letters and then I move this picture.

 If you need more info, let me know.
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Question by:dvplayltd
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6 Comments
 
LVL 43

Accepted Solution

by:
Davis McCarn earned 500 total points
ID: 39162611
GDI+ is almost three times slower than GDI and neither use the GPU's (video card) acceleration.  Rendering is done by the CPU.
Can you upgrade your CPU or change it to use GDI (not+)?
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Author Comment

by:dvplayltd
ID: 39163632
To change GDI+ mean to rewrite ALL application. I'm searching if I could solve the question with better hardware, that is my ask here.

 I guess you are right about GDI+ and video card acceleration - anyway i'm sure that the seed depends of video drivers too , that is my ask - which video card have the best speed with GDI+. As this is old technology and new card support primary new like 2Ddirect , 3D and others, I'm not sure that a newest video card cost 300 $ will give me better speed than a video card cost 80 $ - as I say it's drivers question /I use DIB and double buffering/

 I test with Core 2 Duo 3.00 Ghz and i5-3.3 Ghz - it doesn't look to have big difference in speed ... it look that CPU matter with 10-20 % of the speed.
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LVL 43

Expert Comment

by:Davis McCarn
ID: 39164382
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Author Comment

by:dvplayltd
ID: 39173824
To Davis

First - thanks for your time tring  to help me.
I had read the article before you post here, anyway I'm alwost to give you the points as you are the only one person tring to answer. I know, that the answer is to make test, but I try to get some direction before start buying hardware just for test ... :-)

So, your conclusion is that GDI+ depends much more on CPU than to video card, right?
Fine – better CPU is the one with bigger frequency – I mean i5 3.00 is slower than i7 3.6, right ? The numbers of cores play role here, or not? I guess it is NOT , what do you think?
 Other – older Core 2 Duo has FSB params (800,1066,1333) on MB and CPU and actually it reflect the speed much more than the CPU frequency. The new Intel i3 i5 i7 have no anymore FSB, but do they have other params which reflect the speed?

 And last 3-4 years I works only with Intel … is there change AMD CPU to be much better for GDI+ ?
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LVL 43

Expert Comment

by:Davis McCarn
ID: 39174686
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Author Closing Comment

by:dvplayltd
ID: 39189117
10x for your time. I still not get solution, but will test your guess that it is primary CPU depended, not video card .
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