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DefaultImageRaster : attempt to fix NPE when the raster is initialized with an Image that has not been rendered yet.

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git-svn-id: https://jmonkeyengine.googlecode.com/svn/trunk@10477 75d07b2b-3a1a-0410-a2c5-0572b91ccdca
This commit is contained in:
rem..om 2013-03-09 09:13:39 +00:00
parent c591260ab5
commit f773bbdd38
1 changed files with 13 additions and 4 deletions
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17
engine/src/core/com/jme3/texture/image/DefaultImageRaster.java
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@ -39,12 +39,13 @@ import java.nio.ByteBuffer;
public class DefaultImageRaster extends ImageRaster {
private final int[] components = new int[4];
private final ByteBuffer buffer;
private ByteBuffer buffer;
private final Image image;
private final ImageCodec codec;
private final int width;
private final int height;
private final byte[] temp;
private int slice;
private void rangeCheck(int x, int y) {
if (x < 0 || y < 0 || x >= width || y >= height) {
@ -54,6 +55,7 @@ public class DefaultImageRaster extends ImageRaster {
public DefaultImageRaster(Image image, int slice) {
this.image = image;
this.slice = slice;
this.buffer = image.getData(slice);
this.codec = ImageCodec.lookup(image.getFormat());
this.width = image.getWidth();
@ -105,16 +107,23 @@ public class DefaultImageRaster extends ImageRaster {
components[2] = Math.min( (int) (color.g * codec.maxGreen + 0.5f), codec.maxGreen);
components[3] = Math.min( (int) (color.b * codec.maxBlue + 0.5f), codec.maxBlue);
break;
}
codec.writeComponents(buffer, x, y, width, components, temp);
}
codec.writeComponents(getBuffer(), x, y, width, components, temp);
image.setUpdateNeeded();
}
private ByteBuffer getBuffer(){
if(buffer == null){
this.buffer = image.getData(slice);
}
return buffer;
}
@Override
public ColorRGBA getPixel(int x, int y, ColorRGBA store) {
rangeCheck(x, y);
codec.readComponents(buffer, x, y, width, components, temp);
codec.readComponents(getBuffer(), x, y, width, components, temp);
if (store == null) {
store = new ColorRGBA();
}