jdk/src/java.desktop/share/classes/sun/java2d/marlin/MarlinConst.java
changeset 34419 14108cfd0823
parent 34417 57a3863abbb4
child 34689 4b5bf9f960c8
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/java.desktop/share/classes/sun/java2d/marlin/MarlinConst.java	Mon Nov 23 15:02:19 2015 -0800
@@ -0,0 +1,121 @@
+/*
+ * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package sun.java2d.marlin;
+
+/**
+ * Marlin constant holder using System properties
+ */
+interface MarlinConst {
+    // enable Logs (logger or stdout)
+    static final boolean enableLogs = false;
+    // enable Logger
+    static final boolean useLogger = enableLogs && MarlinProperties.isUseLogger();
+
+    // log new RendererContext
+    static final boolean logCreateContext = enableLogs
+        && MarlinProperties.isLogCreateContext();
+    // log misc.Unsafe alloc/realloc/free
+    static final boolean logUnsafeMalloc = enableLogs
+        && MarlinProperties.isLogUnsafeMalloc();
+
+    // do statistics
+    static final boolean doStats = enableLogs && MarlinProperties.isDoStats();
+    // do monitors
+    // disabled to reduce byte-code size a bit...
+    static final boolean doMonitors = enableLogs && false; // MarlinProperties.isDoMonitors();
+    // do checks
+    static final boolean doChecks = false; // MarlinProperties.isDoChecks();
+
+    // do AA range checks: disable when algorithm / code is stable
+    static final boolean DO_AA_RANGE_CHECK = false;
+
+    // enable logs
+    static final boolean doLogWidenArray = enableLogs && false;
+    // enable oversize logs
+    static final boolean doLogOverSize = enableLogs && false;
+    // enable traces
+    static final boolean doTrace = enableLogs && false;
+    // do flush monitors
+    static final boolean doFlushMonitors = true;
+    // use one polling thread to dump statistics/monitors
+    static final boolean useDumpThread = false;
+    // thread dump interval (ms)
+    static final long statDump = 5000L;
+
+    // do clean dirty array
+    static final boolean doCleanDirty = false;
+
+    // flag to use line simplifier
+    static final boolean useSimplifier = MarlinProperties.isUseSimplifier();
+
+    // flag to enable logs related bounds checks
+    static final boolean doLogBounds = enableLogs && false;
+
+    // Initial Array sizing (initial context capacity) ~ 512K
+
+    // 2048 pixel (width x height) for initial capacity
+    static final int INITIAL_PIXEL_DIM
+        = MarlinProperties.getInitialImageSize();
+
+    // typical array sizes: only odd numbers allowed below
+    static final int INITIAL_ARRAY        = 256;
+    static final int INITIAL_SMALL_ARRAY  = 1024;
+    static final int INITIAL_MEDIUM_ARRAY = 4096;
+    static final int INITIAL_LARGE_ARRAY  = 8192;
+    static final int INITIAL_ARRAY_16K    = 16384;
+    static final int INITIAL_ARRAY_32K    = 32768;
+    // alpha row dimension
+    static final int INITIAL_AA_ARRAY     = INITIAL_PIXEL_DIM;
+
+    // initial edges (24 bytes) = 24K [ints] = 96K
+    static final int INITIAL_EDGES_CAPACITY = 4096 * 24; // 6 ints per edges
+
+    // zero value as byte
+    static final byte BYTE_0 = (byte) 0;
+
+    // subpixels expressed as log2
+    public static final int SUBPIXEL_LG_POSITIONS_X
+        = MarlinProperties.getSubPixel_Log2_X();
+    public static final int SUBPIXEL_LG_POSITIONS_Y
+        = MarlinProperties.getSubPixel_Log2_Y();
+
+    // number of subpixels
+    public static final int SUBPIXEL_POSITIONS_X = 1 << (SUBPIXEL_LG_POSITIONS_X);
+    public static final int SUBPIXEL_POSITIONS_Y = 1 << (SUBPIXEL_LG_POSITIONS_Y);
+
+    public static final float NORM_SUBPIXELS
+        = (float)Math.sqrt(( SUBPIXEL_POSITIONS_X * SUBPIXEL_POSITIONS_X
+                           + SUBPIXEL_POSITIONS_Y * SUBPIXEL_POSITIONS_Y)/2.0);
+
+    public static final int MAX_AA_ALPHA
+        = SUBPIXEL_POSITIONS_X * SUBPIXEL_POSITIONS_Y;
+
+    public static final int TILE_SIZE_LG = MarlinProperties.getTileSize_Log2();
+    public static final int TILE_SIZE = 1 << TILE_SIZE_LG; // 32 by default
+
+    public static final int BLOCK_SIZE_LG = MarlinProperties.getBlockSize_Log2();
+    public static final int BLOCK_SIZE    = 1 << BLOCK_SIZE_LG;
+}