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Optimizing graphic routine

I need help to optimize a simple, but at the moment slow graphics routine. It is a routine that takes two TBitmap32 objects, and applies the alpha layer on one of them as a mask on the other one.

You will need to have Graphics32 library to complete the task!

It is VERY important that the function of the routine is not changed - the optimizing must be done inside and not outside the function.

I have uploaded a test project (D2007) that contains both the routine (alone in a unit called [url removed, login to view], named ApplyMask) and a project that calculates the time the function uses. When running with default settings the function masks 720x576 pixels, and on my machine that takes approx. 27 milliseconds. It needs to be AT LEAST 10 times faster than it is now!

It is important that it will work with any position, just as the example is now (try move the sliders). But the speed test should be done when X=0 and Y=0 (that is the worst case scenario, when the whole image needs to be masked).

Again, it needs to be at least 10 times faster than it is now...

Mask Test attached :- [url removed, login to view]

Taidot: Delphi

Näytä lisää: test scenario, help graphic, graphic help, optimizing graphic routine delphi, mask, function delphi, graphic case, library delphi, running faster, layer masks, delphi library, unit work, image speed test, graphics32 delphi, delphi pas, delphi pas file, slingfile, speed slow, simple project scenario, routine, simple delphi project, project scenario, graphics library, speed test graphic, mask image

About the Employer:
( 121 reviews ) Belfast, Ireland

Projektin tunnus: #463385

3 freelanceria on tarjonnut keskimäärin 550 $ tähän työhön

tintac

i can do it well. i will build it in your demo. and i send it to you when i finish. Thanks!

650 $ USD 45 päivässä
(0 arvostelua)
0.0
MaxN

I can optimize this function well. I already have few ideas how to do this.

500 $ USD 20 päivässä
(0 arvostelua)
0.0
ulkas

last half of the year i have had so many troubles with bitmaps in delphi. as for now, i'm considering myself as a grandmaster with delphi bitmaps. trust me, i have completed so much optimizing that there is no unseen p Lisää

500 $ USD 7 päivässä
(0 arvostelua)
0.0