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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/XbmImageDecoder.java (1 of 18352 files). Show all

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java/pkg/sun/awt/image/XbmImageDecoder.java+178−0
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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+/*-
27+ * Reads xbitmap format images into a DIBitmap structure.
28+ */
29+package sun.awt.image;
30+
31+import java.io.*;
32+import java.awt.image.*;
33+
34+/**
35+ * Parse files of the form:
36+ *
37+ * #define foo_width w
38+ * #define foo_height h
39+ * static char foo_bits[] = {
40+ * 0xnn,0xnn,0xnn,0xnn,0xnn,0xnn,0xnn,0xnn,0xnn,0xnn,0xnn,0xnn,0xnn,0xnn,0xnn,
41+ * 0xnn,0xnn,0xnn,0xnn,0xnn,0xnn,0xnn,0xnn,0xnn,0xnn,0xnn,0xnn,0xnn,0xnn,0xnn,
42+ * 0xnn,0xnn,0xnn,0xnn};
43+ *
44+ * @author James Gosling
45+ */
46+public class XbmImageDecoder extends ImageDecoder {
47+ private static byte XbmColormap[] = {(byte) 255, (byte) 255, (byte) 255,
48+ 0, 0, 0};
49+ private static int XbmHints = (ImageConsumer.TOPDOWNLEFTRIGHT |
50+ ImageConsumer.COMPLETESCANLINES |
51+ ImageConsumer.SINGLEPASS |
52+ ImageConsumer.SINGLEFRAME);
53+
54+ public XbmImageDecoder(InputStreamImageSource src, InputStream is) {
55+ super(src, is);
56+ if (!(input instanceof BufferedInputStream)) {
57+ // If the topmost stream is a metered stream,
58+ // we take forever to decode the image...
59+ input = new BufferedInputStream(input, 80);
60+ }
61+ }
62+
63+
64+ /**
65+ * An error has occurred. Throw an exception.
66+ */
67+ private static void error(String s1) throws ImageFormatException {
68+ throw new ImageFormatException(s1);
69+ }
70+
71+ /**
72+ * produce an image from the stream.
73+ */
74+ public void produceImage() throws IOException, ImageFormatException {
75+ char nm[] = new char[80];
76+ int c;
77+ int i = 0;
78+ int state = 0;
79+ int H = 0;
80+ int W = 0;
81+ int x = 0;
82+ int y = 0;
83+ boolean start = true;
84+ byte raster[] = null;
85+ IndexColorModel model = null;
86+ while (!aborted && (c = input.read()) != -1) {
87+ if ('a' <= c && c <= 'z' ||
88+ 'A' <= c && c <= 'Z' ||
89+ '0' <= c && c <= '9' || c == '#' || c == '_') {
90+ if (i < 78)
91+ nm[i++] = (char) c;
92+ } else if (i > 0) {
93+ int nc = i;
94+ i = 0;
95+ if (start) {
96+ if (nc != 7 ||
97+ nm[0] != '#' ||
98+ nm[1] != 'd' ||
99+ nm[2] != 'e' ||
100+ nm[3] != 'f' ||
101+ nm[4] != 'i' ||
102+ nm[5] != 'n' ||
103+ nm[6] != 'e')
104+ {
105+ error("Not an XBM file");
106+ }
107+ start = false;
108+ }
109+ if (nm[nc - 1] == 'h')
110+ state = 1; /* expecting width */
111+ else if (nm[nc - 1] == 't' && nc > 1 && nm[nc - 2] == 'h')
112+ state = 2; /* expecting height */
113+ else if (nc > 2 && state < 0 && nm[0] == '0' && nm[1] == 'x') {
114+ int n = 0;
115+ for (int p = 2; p < nc; p++) {
116+ c = nm[p];
117+ if ('0' <= c && c <= '9')
118+ c = c - '0';
119+ else if ('A' <= c && c <= 'Z')
120+ c = c - 'A' + 10;
121+ else if ('a' <= c && c <= 'z')
122+ c = c - 'a' + 10;
123+ else
124+ c = 0;
125+ n = n * 16 + c;
126+ }
127+ for (int mask = 1; mask <= 0x80; mask <<= 1) {
128+ if (x < W) {
129+ if ((n & mask) != 0)
130+ raster[x] = 1;
131+ else
132+ raster[x] = 0;
133+ }
134+ x++;
135+ }
136+ if (x >= W) {
137+ if (setPixels(0, y, W, 1, model, raster, 0, W) <= 0) {
138+ return;
139+ }
140+ x = 0;
141+ if (y++ >= H) {
142+ break;
143+ }
144+ }
145+ } else {
146+ int n = 0;
147+ for (int p = 0; p < nc; p++)
148+ if ('0' <= (c = nm[p]) && c <= '9')
149+ n = n * 10 + c - '0';
150+ else {
151+ n = -1;
152+ break;
153+ }
154+ if (n > 0 && state > 0) {
155+ if (state == 1)
156+ W = n;
157+ else
158+ H = n;
159+ if (W == 0 || H == 0)
160+ state = 0;
161+ else {
162+ model = new IndexColorModel(8, 2, XbmColormap,
163+ 0, false, 0);
164+ setDimensions(W, H);
165+ setColorModel(model);
166+ setHints(XbmHints);
167+ headerComplete();
168+ raster = new byte[W];
169+ state = -1;
170+ }
171+ }
172+ }
173+ }
174+ }
175+ input.close();
176+ imageComplete(ImageConsumer.STATICIMAGEDONE, true);
177+ }
178+}