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/*
* Copyright (c) 2008, 2014, 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.javafx.tk.quantum;
import java.nio.Buffer;
import java.nio.ByteBuffer;
import java.nio.ByteOrder;
import java.nio.IntBuffer;
import com.sun.glass.ui.Application;
import com.sun.glass.ui.Pixels;
import com.sun.javafx.iio.ImageFormatDescription;
import com.sun.javafx.iio.ImageStorage;
import com.sun.javafx.image.impl.ByteRgb;
import com.sun.prism.Image;
import com.sun.prism.PixelFormat;
class PixelUtils {
private PixelUtils() {
}
private static ImageFormatDescription[] supportedFormats =
ImageStorage.getSupportedDescriptions();
protected static boolean supportedFormatType(String type) {
for (ImageFormatDescription ifd: supportedFormats) {
for (String ext: ifd.getExtensions()) {
if (type.endsWith(ext)) {
return true;
}
}
}
return false;
}
public static Pixels imageToPixels(Image image) {
PixelFormat.DataType pixelType = image.getDataType();
Application app = Application.GetApplication();
int nativeFormat = Pixels.getNativeFormat();
Pixels pixels;
if (pixelType == PixelFormat.DataType.BYTE) {
ByteBuffer bytes = (ByteBuffer)image.getPixelBuffer();
int w = image.getWidth();
int h = image.getHeight();
int scanBytes = image.getScanlineStride();
if (image.getBytesPerPixelUnit() == 3) {
switch (nativeFormat) {
case Pixels.Format.BYTE_ARGB:
{
byte newbytes[] = new byte[w * h * 4];
ByteRgb.ToByteArgbConverter().convert(bytes, 0, scanBytes,
newbytes, 0, w * 4,
w, h);
bytes = ByteBuffer.wrap(newbytes);
break;
}
case Pixels.Format.BYTE_BGRA_PRE:
{
byte newbytes[] = new byte[w * h * 4];
ByteRgb.ToByteBgraPreConverter().convert(bytes, 0, scanBytes,
newbytes, 0, w * 4,
w, h);
bytes = ByteBuffer.wrap(newbytes);
break;
}
default:
throw new IllegalArgumentException("unhandled native format: " + nativeFormat);
}
} else if (image.getPixelFormat() != PixelFormat.BYTE_BGRA_PRE) {
throw new IllegalArgumentException("non-RGB image format");
}
pixels = app.createPixels(image.getWidth(),
image.getHeight(), bytes);
return pixels;
} else if (pixelType == PixelFormat.DataType.INT) {
if (ByteOrder.nativeOrder() != ByteOrder.LITTLE_ENDIAN) {
final String MSG = "INT_ARGB_PRE only supported for LITTLE_ENDIAN machines";
throw new UnsupportedOperationException(MSG);
}
/*
* Glass only returns BYTE_BGRA_PRE and our only INT PixelFormat
* is INT_ARGB_PRE == BYTE_BGRA_PRE. No conversion necessary.
*/
IntBuffer ints = (IntBuffer)image.getPixelBuffer();
pixels = app.createPixels(image.getWidth(),
image.getHeight(), ints);
return pixels;
} else {
throw new IllegalArgumentException("unhandled image type: " + pixelType);
}
}
public static Image pixelsToImage(Pixels pix) {
Buffer pixbuf = pix.getPixels();
if (pix.getBytesPerComponent() == 1) {
ByteBuffer buf = ByteBuffer.allocateDirect(pixbuf.capacity());
buf.put((ByteBuffer)pixbuf);
buf.rewind();
return (Image.fromByteBgraPreData(buf, pix.getWidth(), pix.getHeight()));
} else if (pix.getBytesPerComponent() == 4) {
IntBuffer buf = IntBuffer.allocate(pixbuf.capacity());
buf.put((IntBuffer)pixbuf);
buf.rewind();
return (Image.fromIntArgbPreData((IntBuffer)pixbuf,
pix.getWidth(), pix.getHeight()));
} else {
throw new IllegalArgumentException("unhandled pixel buffer: " +
pixbuf.getClass().getName());
}
}
}
