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 34 package compiler.c2; 35 36 public class Test6732154 { 37 38 // Exact copy of sun.print.PSPrinterJob.ascii85Encode([b)[b ascii85Encode(byte[] inArr)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 main(String[] args)111 public static void main(String[] args) { 112 new Test6732154().ascii85Encode(new byte[0]); 113 System.out.println("Test passed."); 114 } 115 } 116