com.sun.pisces.AbstractSurface Maven / Gradle / Ivy
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* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
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package com.sun.pisces;
import com.sun.prism.impl.Disposer;
public abstract class AbstractSurface implements Surface {
private long nativePtr = 0L;
private int width;
private int height;
AbstractSurface(int width, int height) {
if (width < 0) {
throw new IllegalArgumentException("WIDTH must be positive");
}
if (height < 0) {
throw new IllegalArgumentException("HEIGHT must be positive");
}
final int nbits = 32-Integer.numberOfLeadingZeros(width) + 32-Integer.numberOfLeadingZeros(height);
if (nbits > 31) {
throw new IllegalArgumentException("WIDTH * HEIGHT is too large");
}
this.width = width;
this.height = height;
}
protected void addDisposerRecord() {
Disposer.addRecord(this, new AbstractSurfaceDisposerRecord(nativePtr));
}
@Override
public final void getRGB(int[] argb, int offset, int scanLength, int x, int y, int width, int height) {
this.rgbCheck(argb.length, offset, scanLength, x, y, width, height);
this.getRGBImpl(argb, offset, scanLength, x, y, width, height);
}
private native void getRGBImpl(int[] argb, int offset, int scanLength, int x, int y, int width, int height);
@Override
public final void setRGB(int[] argb, int offset, int scanLength, int x, int y, int width, int height) {
this.rgbCheck(argb.length, offset, scanLength, x, y, width, height);
this.setRGBImpl(argb, offset, scanLength, x, y, width, height);
}
private native void setRGBImpl(int[] argb, int offset, int scanLength, int x, int y, int width, int height);
private void rgbCheck(int arr_length, int offset, int scanLength, int x, int y, int width, int height) {
if (x < 0 || x >= this.width) {
throw new IllegalArgumentException("X is out of surface");
}
if (y < 0 || y >= this.height) {
throw new IllegalArgumentException("Y is out of surface");
}
if (width < 0) {
throw new IllegalArgumentException("WIDTH must be positive");
}
if (height < 0) {
throw new IllegalArgumentException("HEIGHT must be positive");
}
if (x + width > this.width) {
throw new IllegalArgumentException("X+WIDTH is out of surface");
}
if (y + height > this.height) {
throw new IllegalArgumentException("Y+HEIGHT is out of surface");
}
if (offset < 0) {
throw new IllegalArgumentException("OFFSET must be positive");
}
if (scanLength < 0) {
throw new IllegalArgumentException("SCAN-LENGTH must be positive");
}
if (scanLength < width) {
throw new IllegalArgumentException("SCAN-LENGTH must be >= WIDTH");
}
final int nbits = 32-Integer.numberOfLeadingZeros(scanLength) + 32-Integer.numberOfLeadingZeros(height);
if (nbits > 31) {
throw new IllegalArgumentException("SCAN-LENGTH * HEIGHT is too large");
}
if ((offset + scanLength*(height-1) + width) > arr_length) {
throw new IllegalArgumentException("STRIDE * HEIGHT exceeds length of data");
}
}
private static native void disposeNative(long nativeHandle);
private static class AbstractSurfaceDisposerRecord implements Disposer.Record {
private long nativeHandle;
AbstractSurfaceDisposerRecord(long nh) {
nativeHandle = nh;
}
@Override
public void dispose() {
if (nativeHandle != 0L) {
disposeNative(nativeHandle);
nativeHandle = 0L;
}
}
}
@Override
public final int getWidth() {
return width;
}
@Override
public final int getHeight() {
return height;
}
}