1 /* 2 * Copyright (c) 2007, 2015, 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.java2d.marlin; 27 28 import java.security.AccessController; 29 import static sun.java2d.marlin.MarlinUtils.logInfo; 30 import sun.security.action.GetPropertyAction; 31 32 public final class MarlinProperties { 33 34 private MarlinProperties() { 35 // no-op 36 } 37 38 // marlin system properties 39 40 public static boolean isUseThreadLocal() { 41 return getBoolean("sun.java2d.renderer.useThreadLocal", "true"); 42 } 43 44 /** 45 * Return the initial edge capacity used to define initial arrays 46 * (edges, polystack, crossings) 47 * 48 * @return 256 < initial edges < 65536 (4096 by default) 49 */ 50 public static int getInitialEdges() { 51 return align( 52 getInteger("sun.java2d.renderer.edges", 4096, 64, 64 * 1024), 53 64); 54 } 55 56 /** 57 * Return the initial pixel size used to define initial arrays 58 * (tile AA chunk, alpha line, buckets) 59 * 60 * @return 64 < initial pixel size < 32768 (2048 by default) 61 */ 62 public static int getInitialImageSize() { 63 return align( 64 getInteger("sun.java2d.renderer.pixelsize", 2048, 64, 32 * 1024), 65 64); 66 } 67 68 /** 69 * Return the log(2) corresponding to subpixel on x-axis ( 70 * 71 * @return 1 (2 subpixels) < initial pixel size < 4 (256 subpixels) 72 * (3 by default ie 8 subpixels) 73 */ 74 public static int getSubPixel_Log2_X() { 75 return getInteger("sun.java2d.renderer.subPixel_log2_X", 3, 1, 8); 76 } 77 78 /** 79 * Return the log(2) corresponding to subpixel on y-axis ( 80 * 81 * @return 1 (2 subpixels) < initial pixel size < 8 (256 subpixels) 82 * (3 by default ie 8 subpixels) 83 */ 84 public static int getSubPixel_Log2_Y() { 85 return getInteger("sun.java2d.renderer.subPixel_log2_Y", 3, 1, 8); 86 } 87 88 /** 89 * Return the log(2) corresponding to the square tile size in pixels 90 * 91 * @return 3 (8x8 pixels) < tile size < 8 (256x256 pixels) 92 * (5 by default ie 32x32 pixels) 93 */ 94 public static int getTileSize_Log2() { 95 return getInteger("sun.java2d.renderer.tileSize_log2", 5, 3, 8); 96 } 97 98 /** 99 * Return the log(2) corresponding to the block size in pixels 100 * 101 * @return 3 (8 pixels) < block size < 8 (256 pixels) 102 * (5 by default ie 32 pixels) 103 */ 104 public static int getBlockSize_Log2() { 105 return getInteger("sun.java2d.renderer.blockSize_log2", 5, 3, 8); 106 } 107 108 // RLE / blockFlags settings 109 110 public static boolean isForceRLE() { 111 return getBoolean("sun.java2d.renderer.forceRLE", "false"); 112 } 113 114 public static boolean isForceNoRLE() { 115 return getBoolean("sun.java2d.renderer.forceNoRLE", "false"); 116 } 117 118 public static boolean isUseTileFlags() { 119 return getBoolean("sun.java2d.renderer.useTileFlags", "true"); 120 } 121 122 public static boolean isUseTileFlagsWithHeuristics() { 123 return isUseTileFlags() 124 && getBoolean("sun.java2d.renderer.useTileFlags.useHeuristics", "true"); 125 } 126 127 public static int getRLEMinWidth() { 128 return getInteger("sun.java2d.renderer.rleMinWidth", 64, 0, Integer.MAX_VALUE); 129 } 130 131 // optimisation parameters 132 133 public static boolean isUseSimplifier() { 134 return getBoolean("sun.java2d.renderer.useSimplifier", "false"); 135 } 136 137 // debugging parameters 138 139 public static boolean isDoStats() { 140 return getBoolean("sun.java2d.renderer.doStats", "false"); 141 } 142 143 public static boolean isDoMonitors() { 144 return getBoolean("sun.java2d.renderer.doMonitors", "false"); 145 } 146 147 public static boolean isDoChecks() { 148 return getBoolean("sun.java2d.renderer.doChecks", "false"); 149 } 150 151 // logging parameters 152 153 public static boolean isLoggingEnabled() { 154 return getBoolean("sun.java2d.renderer.log", "false"); 155 } 156 157 public static boolean isUseLogger() { 158 return getBoolean("sun.java2d.renderer.useLogger", "false"); 159 } 160 161 public static boolean isLogCreateContext() { 162 return getBoolean("sun.java2d.renderer.logCreateContext", "false"); 163 } 164 165 public static boolean isLogUnsafeMalloc() { 166 return getBoolean("sun.java2d.renderer.logUnsafeMalloc", "false"); 167 } 168 169 // system property utilities 170 static boolean getBoolean(final String key, final String def) { 171 return Boolean.valueOf(AccessController.doPrivileged( 172 new GetPropertyAction(key, def))); 173 } 174 175 static int getInteger(final String key, final int def, 176 final int min, final int max) 177 { 178 final String property = AccessController.doPrivileged( 179 new GetPropertyAction(key)); 180 181 int value = def; 182 if (property != null) { 183 try { 184 value = Integer.decode(property); 185 } catch (NumberFormatException e) { 186 logInfo("Invalid integer value for " + key + " = " + property); 187 } 188 } 189 190 // check for invalid values 191 if ((value < min) || (value > max)) { 192 logInfo("Invalid value for " + key + " = " + value 193 + "; expected value in range[" + min + ", " + max + "] !"); 194 value = def; 195 } 196 return value; 197 } 198 199 static int align(final int val, final int norm) { 200 final int ceil = FloatMath.ceil_int( ((float)val) / norm); 201 return ceil * norm; 202 } 203 }