1 /* 2 * Copyright (c) 2007, 2017, 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 0 (1 subpixels) < initial pixel size < 8 (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, 0, 8); 76 } 77 78 /** 79 * Return the log(2) corresponding to subpixel on y-axis ( 80 * 81 * @return 0 (1 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, 0, 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, 10); 96 } 97 98 /** 99 * Return the log(2) corresponding to the tile width in pixels 100 * 101 * @return 3 (8 pixels) < tile with < 8 (256 pixels) 102 * (by default is given by the square tile size) 103 */ 104 public static int getTileWidth_Log2() { 105 final int tileSize = getTileSize_Log2(); 106 return getInteger("sun.java2d.renderer.tileWidth_log2", tileSize, 3, 10); 107 } 108 109 /** 110 * Return the log(2) corresponding to the block size in pixels 111 * 112 * @return 3 (8 pixels) < block size < 8 (256 pixels) 113 * (5 by default ie 32 pixels) 114 */ 115 public static int getBlockSize_Log2() { 116 return getInteger("sun.java2d.renderer.blockSize_log2", 5, 3, 8); 117 } 118 119 // RLE / blockFlags settings 120 121 public static boolean isForceRLE() { 122 return getBoolean("sun.java2d.renderer.forceRLE", "false"); 123 } 124 125 public static boolean isForceNoRLE() { 126 return getBoolean("sun.java2d.renderer.forceNoRLE", "false"); 127 } 128 129 public static boolean isUseTileFlags() { 130 return getBoolean("sun.java2d.renderer.useTileFlags", "true"); 131 } 132 133 public static boolean isUseTileFlagsWithHeuristics() { 134 return isUseTileFlags() 135 && getBoolean("sun.java2d.renderer.useTileFlags.useHeuristics", "true"); 136 } 137 138 public static int getRLEMinWidth() { 139 return getInteger("sun.java2d.renderer.rleMinWidth", 64, 0, Integer.MAX_VALUE); 140 } 141 142 // optimisation parameters 143 144 public static boolean isUseSimplifier() { 145 return getBoolean("sun.java2d.renderer.useSimplifier", "false"); 146 } 147 148 // debugging parameters 149 150 public static boolean isDoStats() { 151 return getBoolean("sun.java2d.renderer.doStats", "false"); 152 } 153 154 public static boolean isDoMonitors() { 155 return getBoolean("sun.java2d.renderer.doMonitors", "false"); 156 } 157 158 public static boolean isDoChecks() { 159 return getBoolean("sun.java2d.renderer.doChecks", "false"); 160 } 161 162 // logging parameters 163 164 public static boolean isLoggingEnabled() { 165 return getBoolean("sun.java2d.renderer.log", "false"); 166 } 167 168 public static boolean isUseLogger() { 169 return getBoolean("sun.java2d.renderer.useLogger", "false"); 170 } 171 172 public static boolean isLogCreateContext() { 173 return getBoolean("sun.java2d.renderer.logCreateContext", "false"); 174 } 175 176 public static boolean isLogUnsafeMalloc() { 177 return getBoolean("sun.java2d.renderer.logUnsafeMalloc", "false"); 178 } 179 180 // quality settings 181 182 public static float getCubicDecD2() { 183 return getFloat("sun.java2d.renderer.cubic_dec_d2", 1.0f, 0.01f, 4.0f); 184 } 185 186 public static float getCubicIncD1() { 187 return getFloat("sun.java2d.renderer.cubic_inc_d1", 0.4f, 0.01f, 2.0f); 188 } 189 190 public static float getQuadDecD2() { 191 return getFloat("sun.java2d.renderer.quad_dec_d2", 0.5f, 0.01f, 4.0f); 192 } 193 194 // system property utilities 195 static boolean getBoolean(final String key, final String def) { 196 return Boolean.valueOf(AccessController.doPrivileged( 197 new GetPropertyAction(key, def))); 198 } 199 200 static int getInteger(final String key, final int def, 201 final int min, final int max) 202 { 203 final String property = AccessController.doPrivileged( 204 new GetPropertyAction(key)); 205 206 int value = def; 207 if (property != null) { 208 try { 209 value = Integer.decode(property); 210 } catch (NumberFormatException e) { 211 logInfo("Invalid integer value for " + key + " = " + property); 212 } 213 } 214 215 // check for invalid values 216 if ((value < min) || (value > max)) { 217 logInfo("Invalid value for " + key + " = " + value 218 + "; expected value in range[" + min + ", " + max + "] !"); 219 value = def; 220 } 221 return value; 222 } 223 224 static int align(final int val, final int norm) { 225 final int ceil = FloatMath.ceil_int( ((float) val) / norm); 226 return ceil * norm; 227 } 228 229 public static double getDouble(final String key, final double def, 230 final double min, final double max) 231 { 232 double value = def; 233 final String property = AccessController.doPrivileged( 234 new GetPropertyAction(key)); 235 236 if (property != null) { 237 try { 238 value = Double.parseDouble(property); 239 } catch (NumberFormatException nfe) { 240 logInfo("Invalid value for " + key + " = " + property + " !"); 241 } 242 } 243 // check for invalid values 244 if (value < min || value > max) { 245 logInfo("Invalid value for " + key + " = " + value 246 + "; expect value in range[" + min + ", " + max + "] !"); 247 value = def; 248 } 249 return value; 250 } 251 252 public static float getFloat(final String key, final float def, 253 final float min, final float max) 254 { 255 return (float)getDouble(key, def, min, max); 256 } 257 }