Flex :: BitmapData Allocates A Lot Of Memory When Created
Feb 2, 2012
I have an application which manipulates high resolution images (something around 100+ megapixels), and I'm having some memory issues. When the BitmapData object is created, it allocates memory to store this image. The problem, is that I already have a ByteArray with this image's pixels (which have something around 400+ MB), so when the BitmapData is created, it allocates memory to store the same data that I have on the ByteArray. After its creation, I can set the pixels from the ByteArray to the BitmapData and free the ByteArray. But this memory peak is, sometimes, causing the runtime to raise an exception, telling that the system is out of memory. Is there any way to tell the BitmapData to use my own ByteArray? Or any other solution that I don't have to use double the memory that I need?
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Apr 12, 2010
I've got a flex component which works pretty well but unfortunately turns into a disaster once used in a datagroup item renderer of about 40-50 items. Essentially it uses bitmapdata to take screenshot of a fully-rendered webpage in mx:HTML (this version of webkit rocks btw, miles better than flex 3). The code is pretty self-explanatory I think. [URL]. I've optimized it all I could, browsed, search for answers and already trimmed it down a lot, I'm desparate to reduce the memory usage (about 600mb after 100 draw). The Garbage collector has little effect.
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Dec 22, 2011
I've made a mobile version of my software, with low-res images and such, and I can now fully buffer all my content (including a 360 frame animation which is buffered to memory). Problem is, that everytime I update the view, more memory is used.When I write image = new BitmapData();, does it store the previously created BitmapData's in memory? Do I have to flush the memory somehow before I draw my second picture in BitmapData?Example:
ActionScript Code:
// In this example I draw using the same bitmapData several times, also
//overwriting the first image. Do I have to somehow delete the data first, to
[code].....
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Jul 7, 2011
I have a large sprite...and I'm splitting it into several smaller ones with function bellow. The function works great but the memory usage of my .swf grows dramatically.
private function split_sprite(sp:Sprite,the_parrent:Sprite) {
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Mar 1, 2010
1: I upload an image
2: Without altering it,I make a copy of it and use it display to users in resized format
note: I won't display the original image.
3:Now when user deletes the resized image,i need to delete the image loaded as bitmap i.e. the original image which i won't be displaying
For that I used bitmap.bitmapData.dispose() method.But,it doesn't free up the memory taken by the bitmap.For instance at initial state the memory usage is 58 Mb and upon loading 3 images the size increases to 87 Mb.And when I delete all the images the size decreases to 81 MB only.
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Jun 6, 2010
This is my scenario
1: I upload an image
2: Without altering it,I make a copy of it and use it display to users in resized format
note: I won't display the original image.
3:Now when user deletes the resized image,i need to delete the image loaded as bitmap i.e. the original image which i won't be displaying
For that I used bitmap.bitmapData.dispose() method.But,it doesn't free up the memory taken by the bitmap.For instance at initial state the memory usage is 58 Mb and upon loading 3 images the size increases to 87 Mb.And when I delete all the images the size decreases to 81 MB only.I feel the loaded bitmap is not completely removed.
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Apr 23, 2007
I'm trying to use BitmapData to capture a movieclip that has been created dynamically.
Here's my code:
Code:
on(release)
{
import flash.display.BitmapData;
[Code]....
As u must have noticed, the movieclip i wanna draw, namely _root.VESSEL, itself contains several other clips (eg _root.VESSEL.db). The problem is that the clip doesnt get drawn at all! All i get is a white rectangle of the size i've created the bitmapData. But nothing of that movie clip has been captured.
is it that the BitmapData cannot capture the details of a clip if it has child clips?? Coz here, VESSEL itself was created empty, and all the new shapes are actually being placed as movie clips inside other empty clips that were created in VESSEL.
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Apr 29, 2009
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PHP Code:
import flash.display.BitmapData;
vid.contentPath = flvurl;
var vidid = vidid;
[Code]......
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Jul 15, 2009
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[Code]...
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Feb 3, 2009
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[Code]....
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Oct 22, 2010
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[Code]...
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Jan 31, 2012
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[Code]...
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Sep 26, 2010
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Feb 15, 2011
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[Code]...
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rissa._x=Stage.width/2;
rissa._y=Stage.height/2;[code].....
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**Error** Scene=Scene 1, layer=Layer 2, frame=1:Line 7: The class or interface 'BitmapData.loadBitmap' could not be loaded.
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Oct 14, 2009
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at Site_fla::GalleryPage_29/loadThumbs()
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[Code]...
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Sep 1, 2011
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Feb 2, 2010
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[Code]...
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Jul 20, 2009
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Feb 4, 2010
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Feb 11, 2010
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Jun 11, 2010
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