1/*
2 * Copyright (c) 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.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24/**
25 * @test
26 * @bug 6732154
27 * @summary REG: Printing an Image using image/gif doc flavor crashes the VM, Solsparc
28 *
29 * @run main/othervm -Xcomp
30 *      -XX:CompileCommand=compileonly,compiler.c2.Test6732154::ascii85Encode
31 *      compiler.c2.Test6732154
32 */
33
34package compiler.c2;
35
36public class Test6732154 {
37
38    // Exact copy of sun.print.PSPrinterJob.ascii85Encode([b)[b
39    private byte[] ascii85Encode(byte[] inArr) {
40        byte[]  outArr = new byte[((inArr.length+4) * 5 / 4) + 2];
41        long p1 = 85;
42        long p2 = p1*p1;
43        long p3 = p1*p2;
44        long p4 = p1*p3;
45        byte pling = '!';
46
47        int i = 0;
48        int olen = 0;
49        long val, rem;
50
51        while (i+3 < inArr.length) {
52            val = ((long)((inArr[i++]&0xff))<<24) +
53                  ((long)((inArr[i++]&0xff))<<16) +
54                  ((long)((inArr[i++]&0xff))<< 8) +
55                  ((long)(inArr[i++]&0xff));
56            if (val == 0) {
57                outArr[olen++] = 'z';
58            } else {
59                rem = val;
60                outArr[olen++] = (byte)(rem / p4 + pling); rem = rem % p4;
61                outArr[olen++] = (byte)(rem / p3 + pling); rem = rem % p3;
62                outArr[olen++] = (byte)(rem / p2 + pling); rem = rem % p2;
63                outArr[olen++] = (byte)(rem / p1 + pling); rem = rem % p1;
64                outArr[olen++] = (byte)(rem + pling);
65            }
66        }
67        // input not a multiple of 4 bytes, write partial output.
68        if (i < inArr.length) {
69            int n = inArr.length - i; // n bytes remain to be written
70
71            val = 0;
72            while (i < inArr.length) {
73                val = (val << 8) + (inArr[i++]&0xff);
74            }
75
76            int append = 4 - n;
77            while (append-- > 0) {
78                val = val << 8;
79            }
80            byte []c = new byte[5];
81            rem = val;
82            c[0] = (byte)(rem / p4 + pling); rem = rem % p4;
83            c[1] = (byte)(rem / p3 + pling); rem = rem % p3;
84            c[2] = (byte)(rem / p2 + pling); rem = rem % p2;
85            c[3] = (byte)(rem / p1 + pling); rem = rem % p1;
86            c[4] = (byte)(rem + pling);
87
88            for (int b = 0; b < n+1 ; b++) {
89                outArr[olen++] = c[b];
90            }
91        }
92
93        // write EOD marker.
94        outArr[olen++]='~'; outArr[olen++]='>';
95
96        /* The original intention was to insert a newline after every 78 bytes.
97         * This was mainly intended for legibility but I decided against this
98         * partially because of the (small) amount of extra space, and
99         * partially because for line breaks either would have to hardwire
100         * ascii 10 (newline) or calculate space in bytes to allocate for
101         * the platform's newline byte sequence. Also need to be careful
102         * about where its inserted:
103         * Ascii 85 decoder ignores white space except for one special case:
104         * you must ensure you do not split the EOD marker across lines.
105         */
106        byte[] retArr = new byte[olen];
107        System.arraycopy(outArr, 0, retArr, 0, olen);
108        return retArr;
109    }
110
111    public static void main(String[] args) {
112        new Test6732154().ascii85Encode(new byte[0]);
113        System.out.println("Test passed.");
114    }
115}
116