[kimi007]

Hello

I'm using an HTTP connection to get an array of bytes, in order to generate and Image later. But when I create the image I detect that nearly 80Kb of RAM goes off! My images are PNG files of about 3Kb. So I don't know where that memory goes. The main problem is that I cannot recover that memory using GC and my app crashed.

I'm doing this..

c = (HttpConnection) Connector.open(URL);
is = c.openDataInputStream();
int len = (int)c.getLength();
if (len > 0)
{
data = new byte[len];
is.readFully(data);
image = Image.createImage(data, 0, data.length); // Here is the problem
data = null;
}

What I'm doing wrong? Thanks!
Kimi

[shmoove]

Originally Posted by kimi007

But when I create the image I detect that nearly 80Kb of RAM goes off! My images are PNG files of about 3Kb. So I don't know where that memory goes.

The memory taken by a loaded image != the size of the png file.

In the png file all the data is compressed. When you load the image (on most - if not all - implementations) it is "opened" up into a device-dependent bitmap so it can be drawn fast enough. The memory consumption is normally the resolution of the image multiplied by the color depth of the screen (plus a small constant for the image header).

shmoove

[njzk2]

precisely.
say you have a 140x140 image, it requires 140x140x4 bytes to be created, which is : 78400 bytes.