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jMonkeyEngine is a 3-D game engine for adventurous Java developers
/*
* Copyright (c) 2009-2021 jMonkeyEngine
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* * Neither the name of 'jMonkeyEngine' nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.jme3.texture.plugins;
import com.jme3.asset.AssetInfo;
import com.jme3.asset.AssetLoadException;
import com.jme3.asset.AssetLoader;
import com.jme3.asset.TextureKey;
import com.jme3.texture.Image;
import com.jme3.texture.Image.Format;
import com.jme3.util.BufferUtils;
import java.awt.Transparency;
import java.awt.color.ColorSpace;
import java.awt.image.*;
import java.io.BufferedInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.nio.ByteBuffer;
import javax.imageio.ImageIO;
public class AWTLoader implements AssetLoader {
public static final ColorModel AWT_RGBA4444 = new DirectColorModel(16,
0xf000,
0x0f00,
0x00f0,
0x000f);
public static final ColorModel AWT_RGBA5551
= new ComponentColorModel(ColorSpace.getInstance(ColorSpace.CS_sRGB),
new int[]{5, 5, 5, 1},
true,
false,
Transparency.BITMASK,
DataBuffer.TYPE_BYTE);
private Object extractImageData(BufferedImage img){
DataBuffer buf = img.getRaster().getDataBuffer();
switch (buf.getDataType()){
case DataBuffer.TYPE_BYTE:
DataBufferByte byteBuf = (DataBufferByte) buf;
return byteBuf.getData();
case DataBuffer.TYPE_USHORT:
DataBufferUShort shortBuf = (DataBufferUShort) buf;
return shortBuf.getData();
}
return null;
}
private void flipImage(byte[] img, int width, int height, int bpp){
int scSz = (width * bpp) / 8;
byte[] sln = new byte[scSz];
int y2 = 0;
for (int y1 = 0; y1 < height / 2; y1++){
y2 = height - y1 - 1;
System.arraycopy(img, y1 * scSz, sln, 0, scSz);
System.arraycopy(img, y2 * scSz, img, y1 * scSz, scSz);
System.arraycopy(sln, 0, img, y2 * scSz, scSz);
}
}
private void flipImage(short[] img, int width, int height, int bpp){
int scSz = (width * bpp) / 8;
scSz /= 2; // Because shorts are 2 bytes
short[] sln = new short[scSz];
int y2 = 0;
for (int y1 = 0; y1 < height / 2; y1++){
y2 = height - y1 - 1;
System.arraycopy(img, y1 * scSz, sln, 0, scSz);
System.arraycopy(img, y2 * scSz, img, y1 * scSz, scSz);
System.arraycopy(sln, 0, img, y2 * scSz, scSz);
}
}
public Image load(BufferedImage img, boolean flipY){
int width = img.getWidth();
int height = img.getHeight();
switch (img.getType()){
case BufferedImage.TYPE_4BYTE_ABGR: // most common in PNG images w/ alpha
byte[] dataBuf1 = (byte[]) extractImageData(img);
if (flipY)
flipImage(dataBuf1, width, height, 32);
ByteBuffer data1 = BufferUtils.createByteBuffer(img.getWidth()*img.getHeight()*4);
data1.put(dataBuf1);
return new Image(Format.ABGR8, width, height, data1, null, com.jme3.texture.image.ColorSpace.sRGB);
case BufferedImage.TYPE_3BYTE_BGR: // most common in JPEG images
byte[] dataBuf2 = (byte[]) extractImageData(img);
if (flipY)
flipImage(dataBuf2, width, height, 24);
ByteBuffer data2 = BufferUtils.createByteBuffer(img.getWidth()*img.getHeight()*3);
data2.put(dataBuf2);
return new Image(Format.BGR8, width, height, data2, null, com.jme3.texture.image.ColorSpace.sRGB);
case BufferedImage.TYPE_BYTE_GRAY: // grayscale fonts
byte[] dataBuf3 = (byte[]) extractImageData(img);
if (flipY)
flipImage(dataBuf3, width, height, 8);
ByteBuffer data3 = BufferUtils.createByteBuffer(img.getWidth()*img.getHeight());
data3.put(dataBuf3);
return new Image(Format.Luminance8, width, height, data3, null, com.jme3.texture.image.ColorSpace.sRGB);
default:
break;
}
if (img.getTransparency() == Transparency.OPAQUE){
ByteBuffer data = BufferUtils.createByteBuffer(img.getWidth()*img.getHeight()*3);
// no alpha
for (int y = 0; y < height; y++){
for (int x = 0; x < width; x++){
int ny = y;
if (flipY){
ny = height - y - 1;
}
int rgb = img.getRGB(x,ny);
byte r = (byte) ((rgb & 0x00FF0000) >> 16);
byte g = (byte) ((rgb & 0x0000FF00) >> 8);
byte b = (byte) ((rgb & 0x000000FF));
data.put(r).put(g).put(b);
}
}
data.flip();
return new Image(Format.RGB8, width, height, data, null, com.jme3.texture.image.ColorSpace.sRGB);
}else{
ByteBuffer data = BufferUtils.createByteBuffer(img.getWidth()*img.getHeight()*4);
// alpha
for (int y = 0; y < height; y++){
for (int x = 0; x < width; x++){
int ny = y;
if (flipY){
ny = height - y - 1;
}
int rgb = img.getRGB(x,ny);
byte a = (byte) ((rgb & 0xFF000000) >> 24);
byte r = (byte) ((rgb & 0x00FF0000) >> 16);
byte g = (byte) ((rgb & 0x0000FF00) >> 8);
byte b = (byte) ((rgb & 0x000000FF));
data.put(r).put(g).put(b).put(a);
}
}
data.flip();
return new Image(Format.RGBA8, width, height, data, null, com.jme3.texture.image.ColorSpace.sRGB);
}
}
public Image load(InputStream in, boolean flipY) throws IOException{
ImageIO.setUseCache(false);
BufferedImage img = ImageIO.read(in);
if (img == null){
return null;
}
return load(img, flipY);
}
@Override
public Object load(AssetInfo info) throws IOException {
if (ImageIO.getImageReadersBySuffix(info.getKey().getExtension()) != null){
boolean flip = ((TextureKey) info.getKey()).isFlipY();
try (InputStream in = info.openStream();
BufferedInputStream bin = new BufferedInputStream(in)) {
Image img = load(bin, flip);
if (img == null){
throw new AssetLoadException("The given image cannot be loaded " + info.getKey());
}
return img;
}
}else{
throw new AssetLoadException("The extension " + info.getKey().getExtension() + " is not supported");
}
}
}
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