1 /*
2 * Copyright (c) 2011, 2012, 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.lwawt.macosx;
27
28 import java.awt.*;
29 import java.awt.geom.Dimension2D;
30 import java.awt.image.*;
31
32 import java.util.Arrays;
33 import java.util.List;
34 import sun.awt.image.MultiResolutionImage;
35 import sun.awt.image.MultiResolutionCachedImage;
36
37 import sun.awt.image.SunWritableRaster;
38
39 public class CImage extends CFRetainedResource {
40 private static native long nativeCreateNSImageFromArray(int[] buffer, int w, int h);
41 private static native long nativeCreateNSImageFromBytes(byte[] buffer);
42 private static native long nativeCreateNSImageFromArrays(int[][] buffers, int w[], int h[]);
43 private static native long nativeCreateNSImageFromFileContents(String file);
44 private static native long nativeCreateNSImageOfFileFromLaunchServices(String file);
45 private static native long nativeCreateNSImageFromImageName(String name);
46 private static native long nativeCreateNSImageFromIconSelector(int selector);
47 private static native byte[] nativeGetPlatformImageBytes(int[] buffer, int w, int h);
48 private static native void nativeCopyNSImageIntoArray(long image, int[] buffer, int sw, int sh, int dw, int dh);
49 private static native Dimension2D nativeGetNSImageSize(long image);
50 private static native void nativeSetNSImageSize(long image, double w, double h);
51 private static native void nativeResizeNSImageRepresentations(long image, double w, double h);
52 private static native Dimension2D[] nativeGetNSImageRepresentationSizes(long image, double w, double h);
53
54 static Creator creator = new Creator();
55 static Creator getCreator() {
56 return creator;
57 }
58
59 public static class Creator {
60 Creator() { }
61
62 // This is used to create a CImage with an NSImage pointer. It MUST be a CFRetained
63 // NSImage, and the CImage takes ownership of the non-GC retain. If callers need the
64 // NSImage themselves, they MUST call retain on the NSImage themselves.
65 public Image createImageUsingNativeSize(final long image) {
66 if (image == 0) return null;
67 final Dimension2D size = nativeGetNSImageSize(image);
68 return createImage(image, size.getWidth(), size.getHeight());
69 }
70
71 // the width and height passed in as a parameter could differ than the width and the height of the NSImage (image), in that case, the image will be scaled
72 Image createImage(long image, double width, double height) {
73 if (image == 0) throw new Error("Unable to instantiate CImage with null native image reference.");
74 return createImageWithSize(image, width, height);
75 }
76
77 public Image createImageWithSize(final long image, final double width, final double height) {
78 final CImage img = new CImage(image);
79 img.resize(width, height);
80 return img.toImage();
81 }
82
83 // This is used to create a CImage that represents the icon of the given file.
84 public Image createImageOfFile(final String file, final int width, final int height) {
85 return createImage(nativeCreateNSImageOfFileFromLaunchServices(file), width, height);
86 }
87
88 public Image createImageFromFile(final String file, final double width, final double height) {
89 final long image = nativeCreateNSImageFromFileContents(file);
90 nativeSetNSImageSize(image, width, height);
91 return createImage(image, width, height);
92 }
93
94 public Image createSystemImageFromSelector(final String iconSelector, final int width, final int height) {
95 return createImage(nativeCreateNSImageFromIconSelector(getSelectorAsInt(iconSelector)), width, height);
96 }
97
98 public Image createImageFromName(final String name, final int width, final int height) {
99 return createImage(nativeCreateNSImageFromImageName(name), width, height);
100 }
101
102 public Image createImageFromName(final String name) {
103 return createImageUsingNativeSize(nativeCreateNSImageFromImageName(name));
104 }
105
106 private static int[] imageToArray(Image image, boolean prepareImage) {
107 if (image == null) return null;
108
109 if (prepareImage && !(image instanceof BufferedImage)) {
110 final MediaTracker mt = new MediaTracker(new Label());
111 final int id = 0;
112 mt.addImage(image, id);
113
114 try {
115 mt.waitForID(id);
116 } catch (InterruptedException e) {
117 return null;
118 }
119
120 if (mt.isErrorID(id)) {
121 return null;
122 }
123 }
124
125 int w = image.getWidth(null);
126 int h = image.getHeight(null);
127
128 if (w < 0 || h < 0) {
129 return null;
130 }
131
132 BufferedImage bimg = new BufferedImage(w, h, BufferedImage.TYPE_INT_ARGB_PRE);
133 Graphics2D g2 = bimg.createGraphics();
134 g2.setComposite(AlphaComposite.Src);
135 g2.drawImage(image, 0, 0, null);
136 g2.dispose();
137
138 return ((DataBufferInt)bimg.getRaster().getDataBuffer()).getData();
139 }
140
141 public byte[] getPlatformImageBytes(final Image image) {
142 int[] buffer = imageToArray(image, false);
143
144 if (buffer == null) {
145 return null;
146 }
147
148 return nativeGetPlatformImageBytes(buffer, image.getWidth(null), image.getHeight(null));
149 }
150
151 /**
152 * Translates a byte array which contains platform-specific image data in the given format into an Image.
153 */
154 public Image createImageFromPlatformImageBytes(final byte[] buffer) {
155 return createImageUsingNativeSize(nativeCreateNSImageFromBytes(buffer));
156 }
157
158 // This is used to create a CImage from a Image
159 public CImage createFromImage(final Image image) {
160 return createFromImage(image, true);
161 }
162
163 public CImage createFromImageImmediately(final Image image) {
164 return createFromImage(image, false);
165 }
166
167 // This is used to create a CImage from a Image
168 private CImage createFromImage(final Image image, final boolean prepareImage) {
169 if (image instanceof MultiResolutionImage) {
170 List<Image> resolutionVariants
171 = ((MultiResolutionImage) image).getResolutionVariants();
172 return createFromImages(resolutionVariants, prepareImage);
173 }
174
175 int[] buffer = imageToArray(image, prepareImage);
176 if (buffer == null) {
177 return null;
178 }
179 return new CImage(nativeCreateNSImageFromArray(buffer, image.getWidth(null), image.getHeight(null)));
180 }
181
182 public CImage createFromImages(final List<Image> images) {
183 return createFromImages(images, true);
184 }
185
186 private CImage createFromImages(final List<Image> images, final boolean prepareImage) {
187 if (images == null || images.isEmpty()) {
188 return null;
189 }
190
191 int num = images.size();
192
193 int[][] buffers = new int[num][];
194 int[] w = new int[num];
195 int[] h = new int[num];
196
197 num = 0;
198
199 for (final Image img : images) {
200 buffers[num] = imageToArray(img, prepareImage);
201 if (buffers[num] == null) {
202 // Unable to process the image
203 continue;
204 }
205 w[num] = img.getWidth(null);
206 h[num] = img.getHeight(null);
207 num++;
208 }
209
210 if (num == 0) {
211 return null;
212 }
213
214 return new CImage(nativeCreateNSImageFromArrays(
215 Arrays.copyOf(buffers, num),
216 Arrays.copyOf(w, num),
217 Arrays.copyOf(h, num)));
218 }
219
220 static int getSelectorAsInt(final String fromString) {
221 final byte[] b = fromString.getBytes();
222 final int len = Math.min(b.length, 4);
223 int result = 0;
224 for (int i = 0; i < len; i++) {
225 if (i > 0) result <<= 8;
226 result |= (b[i] & 0xff);
227 }
228 return result;
229 }
230 }
231
232 CImage(long nsImagePtr) {
233 super(nsImagePtr, true);
234 }
235
236 /** @return A MultiResolution image created from nsImagePtr, or null. */
237 private Image toImage() {
238 if (ptr == 0) return null;
239
240 final Dimension2D size = nativeGetNSImageSize(ptr);
241 final int w = (int)size.getWidth();
242 final int h = (int)size.getHeight();
243
244 Dimension2D[] sizes
245 = nativeGetNSImageRepresentationSizes(ptr,
246 size.getWidth(), size.getHeight());
247
248 return sizes == null || sizes.length < 2 ?
249 new MultiResolutionCachedImage(w, h, (width, height)
250 -> toImage(w, h, width, height))
251 : new MultiResolutionCachedImage(w, h, sizes, (width, height)
252 -> toImage(w, h, width, height));
253 }
254
255 private BufferedImage toImage(int srcWidth, int srcHeight, int dstWidth, int dstHeight) {
256 final BufferedImage bimg = new BufferedImage(dstWidth, dstHeight, BufferedImage.TYPE_INT_ARGB_PRE);
257 final DataBufferInt dbi = (DataBufferInt)bimg.getRaster().getDataBuffer();
258 final int[] buffer = SunWritableRaster.stealData(dbi, 0);
259 nativeCopyNSImageIntoArray(ptr, buffer, srcWidth, srcHeight, dstWidth, dstHeight);
260 SunWritableRaster.markDirty(dbi);
261 return bimg;
262 }
263
264 /** If nsImagePtr != 0 then scale this NSImage. @return *this* */
265 CImage resize(final double w, final double h) {
266 if (ptr != 0) nativeSetNSImageSize(ptr, w, h);
267 return this;
268 }
269
270 void resizeRepresentations(double w, double h) {
271 if (ptr != 0) nativeResizeNSImageRepresentations(ptr, w, h);
272 }
273 }