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 /** 26 * @test 27 * @bug 6732154 28 * @summary REG: Printing an Image using image/gif doc flavor crashes the VM, Solsparc 29 * 30 * @run main/othervm -Xcomp 31 * -XX:CompileCommand=compileonly,compiler.c2.Test6732154::ascii85Encode 32 * compiler.c2.Test6732154 33 */ 34 35 package compiler.c2; 36 37 public class Test6732154 { 38 39 // Exact copy of sun.print.PSPrinterJob.ascii85Encode([b)[b 40 private byte[] ascii85Encode(byte[] inArr) { 41 byte[] outArr = new byte[((inArr.length+4) * 5 / 4) + 2]; 42 long p1 = 85; 43 long p2 = p1*p1; 44 long p3 = p1*p2; 45 long p4 = p1*p3; 46 byte pling = '!'; 47 48 int i = 0; 49 int olen = 0; 50 long val, rem; 51 52 while (i+3 < inArr.length) { 53 val = ((long)((inArr[i++]&0xff))<<24) + 54 ((long)((inArr[i++]&0xff))<<16) + 55 ((long)((inArr[i++]&0xff))<< 8) + 56 ((long)(inArr[i++]&0xff)); 57 if (val == 0) { 58 outArr[olen++] = 'z'; 59 } else { 60 rem = val; 61 outArr[olen++] = (byte)(rem / p4 + pling); rem = rem % p4; 62 outArr[olen++] = (byte)(rem / p3 + pling); rem = rem % p3; 63 outArr[olen++] = (byte)(rem / p2 + pling); rem = rem % p2; 64 outArr[olen++] = (byte)(rem / p1 + pling); rem = rem % p1; 65 outArr[olen++] = (byte)(rem + pling); 66 } 67 } 68 // input not a multiple of 4 bytes, write partial output. 69 if (i < inArr.length) { 70 int n = inArr.length - i; // n bytes remain to be written 71 72 val = 0; 73 while (i < inArr.length) { 74 val = (val << 8) + (inArr[i++]&0xff); 75 } 76 77 int append = 4 - n; 78 while (append-- > 0) { 79 val = val << 8; 80 } 81 byte []c = new byte[5]; 82 rem = val; 83 c[0] = (byte)(rem / p4 + pling); rem = rem % p4; 84 c[1] = (byte)(rem / p3 + pling); rem = rem % p3; 85 c[2] = (byte)(rem / p2 + pling); rem = rem % p2; 86 c[3] = (byte)(rem / p1 + pling); rem = rem % p1; 87 c[4] = (byte)(rem + pling); 88 89 for (int b = 0; b < n+1 ; b++) { 90 outArr[olen++] = c[b]; 91 } 92 } 93 94 // write EOD marker. 95 outArr[olen++]='~'; outArr[olen++]='>'; 96 97 /* The original intention was to insert a newline after every 78 bytes. 98 * This was mainly intended for legibility but I decided against this 99 * partially because of the (small) amount of extra space, and 100 * partially because for line breaks either would have to hardwire 101 * ascii 10 (newline) or calculate space in bytes to allocate for 102 * the platform's newline byte sequence. Also need to be careful 103 * about where its inserted: 104 * Ascii 85 decoder ignores white space except for one special case: 105 * you must ensure you do not split the EOD marker across lines. 106 */ 107 byte[] retArr = new byte[olen]; 108 System.arraycopy(outArr, 0, retArr, 0, olen); 109 return retArr; 110 } 111 112 public static void main(String[] args) { 113 new Test6732154().ascii85Encode(new byte[0]); 114 System.out.println("Test passed."); 115 } 116 }