[Flashcoders] AS3 bitmapdata lock/unlock
Just messing around converting some double buffering AS2 routines to AS3 when I stumbled upon lock() and unlock() - does this make double buffering unnecessary? I'm not noticing any immediate speed differences between my routine using double buffering and my test with lock()/unlock(). Cheers M ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
RE: [Flashcoders] AS3 bitmapdata lock/unlock
WHEN IS FLASH WITH AS3 COMING OUT? NOT THE BETA? ANY IDEAS? ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
Re: [Flashcoders] AS3 bitmapdata lock/unlock
from the AS3 reference: Locks an image so that any objects that reference the BitmapData object, such as Bitmap objects, are not updated when this BitmapData object changes. To improve performance, use this method along with the unlock() method before and after numerous calls to the setPixel() or setPixel32() method. With this in mind, it does seem to function like a double buffering mechanism, since you can actually alter bitmapdata before showing it on screen, therefor avoidoing the image to show while processing it. -Meinte On 8/16/06, dan [EMAIL PROTECTED] wrote: WHEN IS FLASH WITH AS3 COMING OUT? NOT THE BETA? ANY IDEAS? ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
RE: [Flashcoders] AS3 bitmapdata lock/unlock
That's how I read it, just wondered if anyone had done any real performance comparisions - my test is fairly simple. M -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Meinte van't Kruis Sent: 16 August 2006 10:43 To: Flashcoders mailing list Subject: Re: [Flashcoders] AS3 bitmapdata lock/unlock from the AS3 reference: Locks an image so that any objects that reference the BitmapData object, such as Bitmap objects, are not updated when this BitmapData object changes. To improve performance, use this method along with the unlock() method before and after numerous calls to the setPixel() or setPixel32() method. With this in mind, it does seem to function like a double buffering mechanism, since you can actually alter bitmapdata before showing it on screen, therefor avoidoing the image to show while processing it. -Meinte ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
Re: [Flashcoders] AS3 bitmapdata lock/unlock
WHEN IS FLASH WITH AS3 COMING OUT? NOT THE BETA? ANY IDEAS? With next version of haXe you'll be able to build Flash9 content ;) http://haxe.org Nicolas ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
RE: [Flashcoders] AS3 bitmapdata lock/unlock
Actually doublebuffering or pageflipping routines could easily use these functions for optimizations. The thing is, that as soon as you swap out one bitmapdata for another (or the holder bitmap class), you lock it anyway. The lock function on itself does not replace the functions of a double / triple / frame buffer or a pageflipping routine. But you could easily intergrate these functions. I've did some speed comparisons; lock and unlock make a great deal of difference in speed; if you are writing a large amount of pixels, rectangles; be sure to lock first. Ralph. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Meinte van't Kruis Sent: woensdag 16 augustus 2006 11:43 To: Flashcoders mailing list Subject: Re: [Flashcoders] AS3 bitmapdata lock/unlock from the AS3 reference: Locks an image so that any objects that reference the BitmapData object, such as Bitmap objects, are not updated when this BitmapData object changes. To improve performance, use this method along with the unlock() method before and after numerous calls to the setPixel() or setPixel32() method. With this in mind, it does seem to function like a double buffering mechanism, since you can actually alter bitmapdata before showing it on screen, therefor avoidoing the image to show while processing it. -Meinte On 8/16/06, dan [EMAIL PROTECTED] wrote: WHEN IS FLASH WITH AS3 COMING OUT? NOT THE BETA? ANY IDEAS? ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
RE: [Flashcoders] AS3 bitmapdata lock/unlock
Hi Ralph If you're feeling generous I'd be interested in seeing the source for those comparisons Cheers M -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Hauwert, Ralph Sent: 16 August 2006 11:16 To: Flashcoders mailing list Subject: RE: [Flashcoders] AS3 bitmapdata lock/unlock Actually doublebuffering or pageflipping routines could easily use these functions for optimizations. The thing is, that as soon as you swap out one bitmapdata for another (or the holder bitmap class), you lock it anyway. The lock function on itself does not replace the functions of a double / triple / frame buffer or a pageflipping routine. But you could easily intergrate these functions. I've did some speed comparisons; lock and unlock make a great deal of difference in speed; if you are writing a large amount of pixels, rectangles; be sure to lock first. Ralph. ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
RE: [Flashcoders] AS3 bitmapdata lock/unlock
Hi Mike, I won't be posting the source of this one yet (it's a mess), but I quickly converted this Beta 2 / 3 example I did to illustrate the power of .lock(). http://www.unitzeroone.com/flex_2/mandelbrot_explorer/ It's a simple Mandelbrot explorer, it was one of my first attempts of creating a Flex component. I just polished it up so it works again, it's not finished. If you first change the settings to one of the larger ones (Either HUGE, Fraczilla or WS), then hit draw, look at the Ms, then change the lock checkbox, hit draw again, and see the MS rise. On my duo core machine it makes about 200Ms of difference in WS size. Ralph. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Mike Mountain Sent: woensdag 16 augustus 2006 12:19 To: Flashcoders mailing list Subject: RE: [Flashcoders] AS3 bitmapdata lock/unlock Hi Ralph If you're feeling generous I'd be interested in seeing the source for those comparisons Cheers M -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Hauwert, Ralph Sent: 16 August 2006 11:16 To: Flashcoders mailing list Subject: RE: [Flashcoders] AS3 bitmapdata lock/unlock Actually doublebuffering or pageflipping routines could easily use these functions for optimizations. The thing is, that as soon as you swap out one bitmapdata for another (or the holder bitmap class), you lock it anyway. The lock function on itself does not replace the functions of a double / triple / frame buffer or a pageflipping routine. But you could easily intergrate these functions. I've did some speed comparisons; lock and unlock make a great deal of difference in speed; if you are writing a large amount of pixels, rectangles; be sure to lock first. Ralph. ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
Re: [Flashcoders] AS3 bitmapdata lock/unlock
Wow that's neat, I'm a big fan of the Mandelbrot set. (offtopic, I just created an explorer for the nintendo DS: http://blog.davr.org/ ). I definately look forward to seeing the source when you finish it up. -David R On 8/16/06, Hauwert, Ralph [EMAIL PROTECTED] wrote: Hi Mike, I won't be posting the source of this one yet (it's a mess), but I quickly converted this Beta 2 / 3 example I did to illustrate the power of .lock(). http://www.unitzeroone.com/flex_2/mandelbrot_explorer/ It's a simple Mandelbrot explorer, it was one of my first attempts of creating a Flex component. I just polished it up so it works again, it's not finished. If you first change the settings to one of the larger ones (Either HUGE, Fraczilla or WS), then hit draw, look at the Ms, then change the lock checkbox, hit draw again, and see the MS rise. On my duo core machine it makes about 200Ms of difference in WS size. Ralph. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Mike Mountain Sent: woensdag 16 augustus 2006 12:19 To: Flashcoders mailing list Subject: RE: [Flashcoders] AS3 bitmapdata lock/unlock Hi Ralph If you're feeling generous I'd be interested in seeing the source for those comparisons Cheers M -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Hauwert, Ralph Sent: 16 August 2006 11:16 To: Flashcoders mailing list Subject: RE: [Flashcoders] AS3 bitmapdata lock/unlock Actually doublebuffering or pageflipping routines could easily use these functions for optimizations. The thing is, that as soon as you swap out one bitmapdata for another (or the holder bitmap class), you lock it anyway. The lock function on itself does not replace the functions of a double / triple / frame buffer or a pageflipping routine. But you could easily intergrate these functions. I've did some speed comparisons; lock and unlock make a great deal of difference in speed; if you are writing a large amount of pixels, rectangles; be sure to lock first. Ralph. ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
