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Linux: Added alpha mask support to Display.setIcon

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This commit is contained in:
Elias Naur 2008-04-01 19:46:20 +00:00
parent abd3f75d6c
commit 395cf797cb
2 changed files with 48 additions and 25 deletions
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23
src/java/org/lwjgl/opengl/LinuxDisplay.java
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@ -962,8 +962,7 @@ final class LinuxDisplay implements DisplayImplementation {
throw new UnsupportedOperationException();
}
private static ByteBuffer convertIcon(ByteBuffer icon, int width, int height) {
ByteBuffer icon_copy = BufferUtils.createByteBuffer(icon.capacity());
private static void convertIcon(ByteBuffer icon, int width, int height, ByteBuffer icon_rgb, ByteBuffer icon_mask) {
int x = 0;
int y = 5;
byte r,g,b,a;
@ -977,13 +976,14 @@ final class LinuxDisplay implements DisplayImplementation {
b = icon.get((x*4)+(y*width*4)+2);
a = icon.get((x*4)+(y*width*4)+3);
icon_copy.put((x*depth)+(y*width*depth), b); // blue
icon_copy.put((x*depth)+(y*width*depth)+1, g); // green
icon_copy.put((x*depth)+(y*width*depth)+2, r);
icon_copy.put((x*depth)+(y*width*depth)+3, a);
icon_rgb.put((x*depth)+(y*width*depth), b); // blue
icon_rgb.put((x*depth)+(y*width*depth)+1, g); // green
icon_rgb.put((x*depth)+(y*width*depth)+2, r);
icon_mask.put((x*depth)+(y*width*depth), a);
icon_mask.put((x*depth)+(y*width*depth)+1, a);
icon_mask.put((x*depth)+(y*width*depth)+2, a);
}
}
return icon_copy;
}
/**
@ -1006,8 +1006,11 @@ final class LinuxDisplay implements DisplayImplementation {
for (int i=0;i<icons.length;i++) {
int size = icons[i].limit() / 4;
int dimension = (int)Math.sqrt(size);
ByteBuffer icon = convertIcon(icons[i], dimension, dimension);
nSetWindowIcon(getDisplay(), getWindow(), icon, icon.capacity(), dimension, dimension);
int cap = icons[i].capacity();
ByteBuffer icon_rgb = BufferUtils.createByteBuffer(cap);
ByteBuffer icon_mask = BufferUtils.createByteBuffer(cap);
convertIcon(icons[i], dimension, dimension, icon_rgb, icon_mask);
nSetWindowIcon(getDisplay(), getWindow(), icon_rgb, icon_mask, cap, dimension, dimension);
return 1;
}
return 0;
@ -1022,7 +1025,7 @@ final class LinuxDisplay implements DisplayImplementation {
}
}
private static native void nSetWindowIcon(long display, long window, ByteBuffer icon, int icons_size, int width, int height);
private static native void nSetWindowIcon(long display, long window, ByteBuffer icon_rgb, ByteBuffer icon_mask, int icon_size, int width, int height);
public int getWidth() {
return Display.getDisplayMode().getWidth();