1 /*
2 * Copyright (c) 2007, 2018, 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 width used to define initial arrays
58 * (tile AA chunk, alpha line)
59 *
60 * @return 64 < initial pixel size < 32768 (4096 by default)
61 */
62 public static int getInitialPixelWidth() {
63 return align(
64 getInteger("sun.java2d.renderer.pixelWidth", 4096, 64, 32 * 1024),
65 64);
66 }
67
68 /**
69 * Return the initial pixel height used to define initial arrays
70 * (buckets)
71 *
72 * @return 64 < initial pixel size < 32768 (2176 by default)
73 */
74 public static int getInitialPixelHeight() {
75 return align(
76 getInteger("sun.java2d.renderer.pixelHeight", 2176, 64, 32 * 1024),
77 64);
78 }
79
80 /**
81 * Return the log(2) corresponding to subpixel on x-axis
82 *
83 * @return 0 (1 subpixels) < initial pixel size < 8 (256 subpixels)
84 * (8 by default ie 256 subpixels)
85 */
86 public static int getSubPixel_Log2_X() {
87 return getInteger("sun.java2d.renderer.subPixel_log2_X", 8, 0, 8);
88 }
89
90 /**
91 * Return the log(2) corresponding to subpixel on y-axis
92 *
93 * @return 0 (1 subpixels) < initial pixel size < 8 (256 subpixels)
94 * (3 by default ie 8 subpixels)
95 */
96 public static int getSubPixel_Log2_Y() {
97 return getInteger("sun.java2d.renderer.subPixel_log2_Y", 3, 0, 8);
98 }
99
100 /**
101 * Return the log(2) corresponding to the square tile size in pixels
102 *
103 * @return 3 (8x8 pixels) < tile size < 10 (1024x1024 pixels)
104 * (6 by default ie 128x64 pixels)
105 */
106 public static int getTileSize_Log2() {
107 return getInteger("sun.java2d.renderer.tileSize_log2", 6, 3, 10);
108 }
109
110 /**
111 * Return the log(2) corresponding to the tile width in pixels
112 *
113 * @return 3 (8 pixels) < tile width < 10 (1024 pixels)
114 * (7 by default ie 128x64 pixels)
115 */
116 public static int getTileWidth_Log2() {
117 return getInteger("sun.java2d.renderer.tileWidth_log2", 7, 3, 10);
118 }
119
120 /**
121 * Return the log(2) corresponding to the block size in pixels
122 *
123 * @return 3 (8 pixels) < block size < 8 (256 pixels)
124 * (5 by default ie 32 pixels)
125 */
126 public static int getBlockSize_Log2() {
127 return getInteger("sun.java2d.renderer.blockSize_log2", 5, 3, 8);
128 }
129
130 // RLE / blockFlags settings
131
132 public static boolean isForceRLE() {
133 return getBoolean("sun.java2d.renderer.forceRLE", "false");
134 }
135
136 public static boolean isForceNoRLE() {
137 return getBoolean("sun.java2d.renderer.forceNoRLE", "false");
138 }
139
140 public static boolean isUseTileFlags() {
141 return getBoolean("sun.java2d.renderer.useTileFlags", "true");
142 }
143
144 public static boolean isUseTileFlagsWithHeuristics() {
145 return isUseTileFlags()
146 && getBoolean("sun.java2d.renderer.useTileFlags.useHeuristics", "true");
147 }
148
149 public static int getRLEMinWidth() {
150 return getInteger("sun.java2d.renderer.rleMinWidth", 64, 0, Integer.MAX_VALUE);
151 }
152
153 // optimisation parameters
154
155 public static boolean isUseSimplifier() {
156 return getBoolean("sun.java2d.renderer.useSimplifier", "false");
157 }
158
159 public static boolean isUsePathSimplifier() {
160 return getBoolean("sun.java2d.renderer.usePathSimplifier", "false");
161 }
162
163 public static float getPathSimplifierPixelTolerance() {
164 // default: MIN_PEN_SIZE or less ?
165 return getFloat("sun.java2d.renderer.pathSimplifier.pixTol",
166 (1.0f / MarlinConst.MIN_SUBPIXELS),
167 1e-3f,
168 10.0f);
169 }
170
171 public static boolean isDoClip() {
172 return getBoolean("sun.java2d.renderer.clip", "true");
173 }
174
175 public static boolean isDoClipRuntimeFlag() {
176 return getBoolean("sun.java2d.renderer.clip.runtime.enable", "false");
177 }
178
179 public static boolean isDoClipAtRuntime() {
180 return getBoolean("sun.java2d.renderer.clip.runtime", "true");
181 }
182
183 public static boolean isDoClipSubdivider() {
184 return getBoolean("sun.java2d.renderer.clip.subdivider", "true");
185 }
186
187 public static float getSubdividerMinLength() {
188 return getFloat("sun.java2d.renderer.clip.subdivider.minLength", 100.0f, Float.NEGATIVE_INFINITY, Float.POSITIVE_INFINITY);
189 }
190
191 // debugging parameters
192
193 public static boolean isDoStats() {
194 return getBoolean("sun.java2d.renderer.doStats", "false");
195 }
196
197 public static boolean isDoMonitors() {
198 return getBoolean("sun.java2d.renderer.doMonitors", "false");
199 }
200
201 public static boolean isDoChecks() {
202 return getBoolean("sun.java2d.renderer.doChecks", "false");
203 }
204
205 // logging parameters
206
207 public static boolean isLoggingEnabled() {
208 return getBoolean("sun.java2d.renderer.log", "false");
209 }
210
211 public static boolean isUseLogger() {
212 return getBoolean("sun.java2d.renderer.useLogger", "false");
213 }
214
215 public static boolean isLogCreateContext() {
216 return getBoolean("sun.java2d.renderer.logCreateContext", "false");
217 }
218
219 public static boolean isLogUnsafeMalloc() {
220 return getBoolean("sun.java2d.renderer.logUnsafeMalloc", "false");
221 }
222
223 // quality settings
224
225 public static float getCurveLengthError() {
226 return getFloat("sun.java2d.renderer.curve_len_err", 0.01f, 1e-6f, 1.0f);
227 }
228
229 public static float getCubicDecD2() {
230 return getFloat("sun.java2d.renderer.cubic_dec_d2", 1.0f, 1e-5f, 4.0f);
231 }
232
233 public static float getCubicIncD1() {
234 return getFloat("sun.java2d.renderer.cubic_inc_d1", 0.2f, 1e-6f, 1.0f);
235 }
236
237 public static float getQuadDecD2() {
238 return getFloat("sun.java2d.renderer.quad_dec_d2", 0.5f, 1e-5f, 4.0f);
239 }
240
241 // system property utilities
242 static boolean getBoolean(final String key, final String def) {
243 return Boolean.valueOf(AccessController.doPrivileged(
244 new GetPropertyAction(key, def)));
245 }
246
247 static int getInteger(final String key, final int def,
248 final int min, final int max)
249 {
250 final String property = AccessController.doPrivileged(
251 new GetPropertyAction(key));
252
253 int value = def;
254 if (property != null) {
255 try {
256 value = Integer.decode(property);
257 } catch (NumberFormatException e) {
258 logInfo("Invalid integer value for " + key + " = " + property);
259 }
260 }
261
262 // check for invalid values
263 if ((value < min) || (value > max)) {
264 logInfo("Invalid value for " + key + " = " + value
265 + "; expected value in range[" + min + ", " + max + "] !");
266 value = def;
267 }
268 return value;
269 }
270
271 static int align(final int val, final int norm) {
272 final int ceil = FloatMath.ceil_int( ((float) val) / norm);
273 return ceil * norm;
274 }
275
276 public static double getDouble(final String key, final double def,
277 final double min, final double max)
278 {
279 double value = def;
280 final String property = AccessController.doPrivileged(
281 new GetPropertyAction(key));
282
283 if (property != null) {
284 try {
285 value = Double.parseDouble(property);
286 } catch (NumberFormatException nfe) {
287 logInfo("Invalid value for " + key + " = " + property + " !");
288 }
289 }
290 // check for invalid values
291 if (value < min || value > max) {
292 logInfo("Invalid value for " + key + " = " + value
293 + "; expect value in range[" + min + ", " + max + "] !");
294 value = def;
295 }
296 return value;
297 }
298
299 public static float getFloat(final String key, final float def,
300 final float min, final float max)
301 {
302 return (float)getDouble(key, def, min, max);
303 }
304 }