Replace color conditions run slower in SWF, why?

[N64Mario]

Whenever I use replace color option to change the colors of my character, it seems to run fine in EXE format. There are no FPS slowdowns here.
However, when I export the app as SWF format, whenever I use replace the color in game, it slows the FPS rate down. Is there any way to fix this? If not, can you tell me why this slowdown happens in SWF, but not in EXE?

I seem to have had this problem before, but I can't remember what the situation was. Also, I am wondering if maybe there is a workaround that can work in SWF format if the slowdown issue can't be fixed?

Currently using MMF2Dev v2.0 R251.

[Francois]

Replace color in Flash is a slow operation. There is nothing really that can be done, except avoid replace color at every loop

[Looki]

Francois, you should have a look at BitmapData::threshold() instead of looping through the image manually. I'm sure it will be a lot faster.

EDIT: Actually, to save you some time, this should basically do it (CServices ~216):

var newImage:BitmapData=new BitmapData(oldImage.width, oldImage.height, true, 0);
newImage.threshold(oldImage, r, new Point(0,0), "==", oldColor, newColor, 0xffffff, true);

[N64Mario]

But it is necessary for what I need it to do. Most common games use palette features that can swap out colors. Examples like NES games use flashing palettes on characters, fighting games have selectable colors for characters. Sometimes an in-game color swap is called in a fighting game. Color swapping should be the most common thing in a video game where it shouldn't have to slow down the frame rate that bad.

Maybe flash has an alternate solution for this kind of thing? I don't think different sprite layering just for a new color will quite cut it. Is there something else that flash uses that does the same effect as replace color, but a lot faster? Is there perhaps a load palette/colors option on to the object?

[Francois]

Thanks Looky. I did not know about this function. It seems great!

[N64Mario]

So, does this mean that we may see an update much later to the SWF exporter that will use Looki's expression function?

[Looki]

Yeah, but not before build 253. Maybe I'll add it to Flash Fx for you sometime

[N64Mario]

Oh really? That long? I thought it should be a really simple fix. Considering they are still working on build 252, which is still in the beta testing phase. I don't see why they wouldn't be able to include this fix in the final version of 252, if not another beta build of 252. :-/

Well, I suppose any help would be appreciated.