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My first initial commit with all of mine experimental changes.

Dmitry Kabak (userdima committed 13 years ago

Commit d37b88d1 parent 3f5b46618352 files · +2598093 −-8690Browse files

Showing the changes to java/pkg/sun/awt/image/ImageDecoder.java (1 of 18352 files). Show all

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java/pkg/sun/awt/image/ImageDecoder.java+183−0
@@ -0,0 +1,183 @@
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.io.InputStream;
30+import java.io.IOException;
31+import java.awt.image.*;
32+
33+public abstract class ImageDecoder {
34+ InputStreamImageSource source;
35+ InputStream input;
36+ Thread feeder;
37+
38+ protected boolean aborted;
39+ protected boolean finished;
40+ ImageConsumerQueue queue;
41+ ImageDecoder next;
42+
43+ public ImageDecoder(InputStreamImageSource src, InputStream is) {
44+ source = src;
45+ input = is;
46+ feeder = Thread.currentThread();
47+ }
48+
49+ public boolean isConsumer(ImageConsumer ic) {
50+ return ImageConsumerQueue.isConsumer(queue, ic);
51+ }
52+
53+ public void removeConsumer(ImageConsumer ic) {
54+ queue = ImageConsumerQueue.removeConsumer(queue, ic, false);
55+ if (!finished && queue == null) {
56+ abort();
57+ }
58+ }
59+
60+ protected ImageConsumerQueue nextConsumer(ImageConsumerQueue cq) {
61+ synchronized (source) {
62+ if (aborted) {
63+ return null;
64+ }
65+ cq = ((cq == null) ? queue : cq.next);
66+ while (cq != null) {
67+ if (cq.interested) {
68+ return cq;
69+ }
70+ cq = cq.next;
71+ }
72+ }
73+ return null;
74+ }
75+
76+ protected int setDimensions(int w, int h) {
77+ ImageConsumerQueue cq = null;
78+ int count = 0;
79+ while ((cq = nextConsumer(cq)) != null) {
80+ cq.consumer.setDimensions(w, h);
81+ count++;
82+ }
83+ return count;
84+ }
85+
86+ protected int setProperties(Hashtable props) {
87+ ImageConsumerQueue cq = null;
88+ int count = 0;
89+ while ((cq = nextConsumer(cq)) != null) {
90+ cq.consumer.setProperties(props);
91+ count++;
92+ }
93+ return count;
94+ }
95+
96+ protected int setColorModel(ColorModel model) {
97+ ImageConsumerQueue cq = null;
98+ int count = 0;
99+ while ((cq = nextConsumer(cq)) != null) {
100+ cq.consumer.setColorModel(model);
101+ count++;
102+ }
103+ return count;
104+ }
105+
106+ protected int setHints(int hints) {
107+ ImageConsumerQueue cq = null;
108+ int count = 0;
109+ while ((cq = nextConsumer(cq)) != null) {
110+ cq.consumer.setHints(hints);
111+ count++;
112+ }
113+ return count;
114+ }
115+
116+ protected void headerComplete() {
117+ feeder.setPriority(ImageFetcher.LOW_PRIORITY);
118+ }
119+
120+ protected int setPixels(int x, int y, int w, int h, ColorModel model,
121+ byte pix[], int off, int scansize) {
122+ source.latchConsumers(this);
123+ ImageConsumerQueue cq = null;
124+ int count = 0;
125+ while ((cq = nextConsumer(cq)) != null) {
126+ cq.consumer.setPixels(x, y, w, h, model, pix, off, scansize);
127+ count++;
128+ }
129+ return count;
130+ }
131+
132+ protected int setPixels(int x, int y, int w, int h, ColorModel model,
133+ int pix[], int off, int scansize) {
134+ source.latchConsumers(this);
135+ ImageConsumerQueue cq = null;
136+ int count = 0;
137+ while ((cq = nextConsumer(cq)) != null) {
138+ cq.consumer.setPixels(x, y, w, h, model, pix, off, scansize);
139+ count++;
140+ }
141+ return count;
142+ }
143+
144+ protected int imageComplete(int status, boolean done) {
145+ source.latchConsumers(this);
146+ if (done) {
147+ finished = true;
148+ source.doneDecoding(this);
149+ }
150+ ImageConsumerQueue cq = null;
151+ int count = 0;
152+ while ((cq = nextConsumer(cq)) != null) {
153+ cq.consumer.imageComplete(status);
154+ count++;
155+ }
156+ return count;
157+ }
158+
159+ public abstract void produceImage() throws IOException,
160+ ImageFormatException;
161+
162+ public void abort() {
163+ aborted = true;
164+ source.doneDecoding(this);
165+ close();
166+ java.security.AccessController.doPrivileged(
167+ new java.security.PrivilegedAction() {
168+ public Object run() {
169+ feeder.interrupt();
170+ return null;
171+ }
172+ });
173+ }
174+
175+ public synchronized void close() {
176+ if (input != null) {
177+ try {
178+ input.close();
179+ } catch (IOException e) {
180+ }
181+ }
182+ }
183+}