Showing the changes to java/pkg/sun/awt/image/OffScreenImageSource.java (1 of 18352 files). Show all
Unified · Split
| @@ -0,0 +1,195 @@ | ||
| 1 | +/* | |
| 2 | + * Copyright (c) 1995, 2003, Oracle and/or its affiliates. All rights reserved. | |
| 3 | + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
| 4 | + * | |
| 5 | + * This code is free software; you can redistribute it and/or modify it | |
| 6 | + * under the terms of the GNU General Public License version 2 only, as | |
| 7 | + * published by the Free Software Foundation. Oracle designates this | |
| 8 | + * particular file as subject to the "Classpath" exception as provided | |
| 9 | + * by Oracle in the LICENSE file that accompanied this code. | |
| 10 | + * | |
| 11 | + * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 12 | + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 13 | + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 14 | + * version 2 for more details (a copy is included in the LICENSE file that | |
| 15 | + * accompanied this code). | |
| 16 | + * | |
| 17 | + * You should have received a copy of the GNU General Public License version | |
| 18 | + * 2 along with this work; if not, write to the Free Software Foundation, | |
| 19 | + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 20 | + * | |
| 21 | + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| 22 | + * or visit www.oracle.com if you need additional information or have any | |
| 23 | + * questions. | |
| 24 | + */ | |
| 25 | + | |
| 26 | +package sun.awt.image; | |
| 27 | + | |
| 28 | +import java.util.Hashtable; | |
| 29 | +import java.awt.image.ImageConsumer; | |
| 30 | +import java.awt.image.ImageProducer; | |
| 31 | +import java.awt.image.Raster; | |
| 32 | +import java.awt.image.WritableRaster; | |
| 33 | +import java.awt.image.ColorModel; | |
| 34 | +import java.awt.image.IndexColorModel; | |
| 35 | +import java.awt.image.DirectColorModel; | |
| 36 | +import java.awt.image.BufferedImage; | |
| 37 | +import java.awt.image.DataBuffer; | |
| 38 | + | |
| 39 | +public class OffScreenImageSource implements ImageProducer { | |
| 40 | + BufferedImage image; | |
| 41 | + int width; | |
| 42 | + int height; | |
| 43 | + Hashtable properties; | |
| 44 | + | |
| 45 | + public OffScreenImageSource(BufferedImage image, | |
| 46 | + Hashtable properties) { | |
| 47 | + this.image = image; | |
| 48 | + if (properties != null) { | |
| 49 | + this.properties = properties; | |
| 50 | + } else { | |
| 51 | + this.properties = new Hashtable(); | |
| 52 | + } | |
| 53 | + width = image.getWidth(); | |
| 54 | + height = image.getHeight(); | |
| 55 | + } | |
| 56 | + | |
| 57 | + public OffScreenImageSource(BufferedImage image) { | |
| 58 | + this(image, null); | |
| 59 | + } | |
| 60 | + | |
| 61 | + // We can only have one consumer since we immediately return the data... | |
| 62 | + private ImageConsumer theConsumer; | |
| 63 | + | |
| 64 | + public synchronized void addConsumer(ImageConsumer ic) { | |
| 65 | + theConsumer = ic; | |
| 66 | + produce(); | |
| 67 | + } | |
| 68 | + | |
| 69 | + public synchronized boolean isConsumer(ImageConsumer ic) { | |
| 70 | + return (ic == theConsumer); | |
| 71 | + } | |
| 72 | + | |
| 73 | + public synchronized void removeConsumer(ImageConsumer ic) { | |
| 74 | + if (theConsumer == ic) { | |
| 75 | + theConsumer = null; | |
| 76 | + } | |
| 77 | + } | |
| 78 | + | |
| 79 | + public void startProduction(ImageConsumer ic) { | |
| 80 | + addConsumer(ic); | |
| 81 | + } | |
| 82 | + | |
| 83 | + public void requestTopDownLeftRightResend(ImageConsumer ic) { | |
| 84 | + } | |
| 85 | + | |
| 86 | + private void sendPixels() { | |
| 87 | + ColorModel cm = image.getColorModel(); | |
| 88 | + WritableRaster raster = image.getRaster(); | |
| 89 | + int numDataElements = raster.getNumDataElements(); | |
| 90 | + int dataType = raster.getDataBuffer().getDataType(); | |
| 91 | + int[] scanline = new int[width*numDataElements]; | |
| 92 | + boolean needToCvt = true; | |
| 93 | + | |
| 94 | + if (cm instanceof IndexColorModel) { | |
| 95 | + byte[] pixels = new byte[width]; | |
| 96 | + theConsumer.setColorModel(cm); | |
| 97 | + | |
| 98 | + if (raster instanceof ByteComponentRaster) { | |
| 99 | + needToCvt = false; | |
| 100 | + for (int y=0; y < height; y++) { | |
| 101 | + raster.getDataElements(0, y, width, 1, pixels); | |
| 102 | + theConsumer.setPixels(0, y, width, 1, cm, pixels, 0, | |
| 103 | + width); | |
| 104 | + } | |
| 105 | + } | |
| 106 | + else if (raster instanceof BytePackedRaster) { | |
| 107 | + needToCvt = false; | |
| 108 | + // Binary image. Need to unpack it | |
| 109 | + for (int y=0; y < height; y++) { | |
| 110 | + raster.getPixels(0, y, width, 1, scanline); | |
| 111 | + for (int x=0; x < width; x++) { | |
| 112 | + pixels[x] = (byte) scanline[x]; | |
| 113 | + } | |
| 114 | + theConsumer.setPixels(0, y, width, 1, cm, pixels, 0, | |
| 115 | + width); | |
| 116 | + } | |
| 117 | + } | |
| 118 | + else if (dataType == DataBuffer.TYPE_SHORT || | |
| 119 | + dataType == DataBuffer.TYPE_INT) | |
| 120 | + { | |
| 121 | + // Probably a short or int "GRAY" image | |
| 122 | + needToCvt = false; | |
| 123 | + for (int y=0; y < height; y++) { | |
| 124 | + raster.getPixels(0, y, width, 1, scanline); | |
| 125 | + theConsumer.setPixels(0, y, width, 1, cm, scanline, 0, | |
| 126 | + width); | |
| 127 | + } | |
| 128 | + } | |
| 129 | + } | |
| 130 | + else if (cm instanceof DirectColorModel) { | |
| 131 | + theConsumer.setColorModel(cm); | |
| 132 | + needToCvt = false; | |
| 133 | + switch (dataType) { | |
| 134 | + case DataBuffer.TYPE_INT: | |
| 135 | + for (int y=0; y < height; y++) { | |
| 136 | + raster.getDataElements(0, y, width, 1, scanline); | |
| 137 | + theConsumer.setPixels(0, y, width, 1, cm, scanline, 0, | |
| 138 | + width); | |
| 139 | + } | |
| 140 | + break; | |
| 141 | + case DataBuffer.TYPE_BYTE: | |
| 142 | + byte[] bscanline = new byte[width]; | |
| 143 | + for (int y=0; y < height; y++) { | |
| 144 | + raster.getDataElements(0, y, width, 1, bscanline); | |
| 145 | + for (int x=0; x < width; x++) { | |
| 146 | + scanline[x] = bscanline[x]&0xff; | |
| 147 | + } | |
| 148 | + theConsumer.setPixels(0, y, width, 1, cm, scanline, 0, | |
| 149 | + width); | |
| 150 | + } | |
| 151 | + break; | |
| 152 | + case DataBuffer.TYPE_USHORT: | |
| 153 | + short[] sscanline = new short[width]; | |
| 154 | + for (int y=0; y < height; y++) { | |
| 155 | + raster.getDataElements(0, y, width, 1, sscanline); | |
| 156 | + for (int x=0; x < width; x++) { | |
| 157 | + scanline[x] = sscanline[x]&0xffff; | |
| 158 | + } | |
| 159 | + theConsumer.setPixels(0, y, width, 1, cm, scanline, 0, | |
| 160 | + width); | |
| 161 | + } | |
| 162 | + break; | |
| 163 | + default: | |
| 164 | + needToCvt = true; | |
| 165 | + } | |
| 166 | + } | |
| 167 | + | |
| 168 | + if (needToCvt) { | |
| 169 | + // REMIND: Need to add other types of CMs here | |
| 170 | + ColorModel newcm = ColorModel.getRGBdefault(); | |
| 171 | + theConsumer.setColorModel(newcm); | |
| 172 | + | |
| 173 | + for (int y=0; y < height; y++) { | |
| 174 | + for (int x=0; x < width; x++) { | |
| 175 | + scanline[x] = image.getRGB(x, y); | |
| 176 | + } | |
| 177 | + theConsumer.setPixels(0, y, width, 1, newcm, scanline, 0, | |
| 178 | + width); | |
| 179 | + } | |
| 180 | + } | |
| 181 | + } | |
| 182 | + | |
| 183 | + private void produce() { | |
| 184 | + try { | |
| 185 | + theConsumer.setDimensions(image.getWidth(), image.getHeight()); | |
| 186 | + theConsumer.setProperties(properties); | |
| 187 | + sendPixels(); | |
| 188 | + theConsumer.imageComplete(ImageConsumer.SINGLEFRAMEDONE); | |
| 189 | + } catch (NullPointerException e) { | |
| 190 | + if (theConsumer != null) { | |
| 191 | + theConsumer.imageComplete(ImageConsumer.IMAGEERROR); | |
| 192 | + } | |
| 193 | + } | |
| 194 | + } | |
| 195 | +} | |