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Wait for first frame of image in image loader.

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hns 2002-12-17 17:40:26 +00:00
parent 5025f5fb96
commit 19d4126b51
1 changed files with 13 additions and 4 deletions
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15
src/helma/image/ImageGenerator.java
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@ -105,10 +105,12 @@ public class ImageGenerator {
Image img; Image img;
int w, h; int w, h;
boolean waiting; boolean waiting;
boolean firstFrameLoaded;
ImageLoader (Image img) { ImageLoader (Image img) {
this.img = img; this.img = img;
waiting = true; waiting = true;
firstFrameLoaded = false;
} }
int getWidth () { int getWidth () {
@ -147,14 +149,21 @@ public class ImageGenerator {
w = width; w = width;
if (h == -1 && (infoflags & HEIGHT) > 0) if (h == -1 && (infoflags & HEIGHT) > 0)
h = height; h = height;
if (h > -1 && w > -1) { if ((infoflags & ALLBITS) > 0 ||
// we know all we want to know. notify waiting thread that (infoflags & FRAMEBITS) > 0)
// the image is loaded and ready to be used. firstFrameLoaded = true;
// check if we have everything we need
if (w > -1 && h > -1 && firstFrameLoaded) {
// we know both the width and the height of the image and
// the bits of the first frame have been loaded. notify waiting thread that
// the image is loaded and ready to be used and tell the loader thread
// that we need no further updates.
notifyAll (); notifyAll ();
return false; return false;
} }
// check if there was an error // check if there was an error
if (!waiting || (infoflags & ERROR) > 0 || (infoflags & ABORT) > 0) { if (!waiting || (infoflags & ERROR) > 0 || (infoflags & ABORT) > 0) {
// we either timed out or there was an error.
notifyAll (); notifyAll ();
return false; return false;
} }