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/*
* Copyright (c) 2011, 2013, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package com.sun.pisces;
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;
}
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);
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");
}
}
protected void finalize() {
this.nativeFinalize();
}
public final int getWidth() {
return width;
}
public final int getHeight() {
return height;
}
private native void nativeFinalize();
}
