1 /*
   2  * Copyright (c) 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 /**
  29  * Marlin constant holder using System properties
  30  */
  31 interface MarlinConst {
  32     // enable Logs (logger or stdout)
  33     static final boolean enableLogs = false;
  34     // enable Logger
  35     static final boolean useLogger = enableLogs && MarlinProperties.isUseLogger();
  36 
  37     // log new RendererContext
  38     static final boolean logCreateContext = enableLogs
  39         && MarlinProperties.isLogCreateContext();
  40     // log misc.Unsafe alloc/realloc/free
  41     static final boolean logUnsafeMalloc = enableLogs
  42         && MarlinProperties.isLogUnsafeMalloc();
  43 
  44     // do statistics
  45     static final boolean doStats = enableLogs && MarlinProperties.isDoStats();
  46     // do monitors
  47     // disabled to reduce byte-code size a bit...
  48     static final boolean doMonitors = enableLogs && false; // MarlinProperties.isDoMonitors();
  49     // do checks
  50     static final boolean doChecks = false; // MarlinProperties.isDoChecks();
  51 
  52     // do AA range checks: disable when algorithm / code is stable
  53     static final boolean DO_AA_RANGE_CHECK = false;
  54 
  55     // enable logs
  56     static final boolean doLogWidenArray = enableLogs && false;
  57     // enable oversize logs
  58     static final boolean doLogOverSize = enableLogs && false;
  59     // enable traces
  60     static final boolean doTrace = enableLogs && false;
  61     // do flush monitors
  62     static final boolean doFlushMonitors = true;
  63     // use one polling thread to dump statistics/monitors
  64     static final boolean useDumpThread = false;
  65     // thread dump interval (ms)
  66     static final long statDump = 5000L;
  67 
  68     // do clean dirty array
  69     static final boolean doCleanDirty = false;
  70 
  71     // flag to use line simplifier
  72     static final boolean useSimplifier = MarlinProperties.isUseSimplifier();
  73 
  74     // flag to enable logs related bounds checks
  75     static final boolean doLogBounds = enableLogs && false;
  76 
  77     // Initial Array sizing (initial context capacity) ~ 512K
  78 
  79     // 2048 pixel (width x height) for initial capacity
  80     static final int INITIAL_PIXEL_DIM
  81         = MarlinProperties.getInitialImageSize();
  82 
  83     // typical array sizes: only odd numbers allowed below
  84     static final int INITIAL_ARRAY        = 256;
  85     static final int INITIAL_SMALL_ARRAY  = 1024;
  86     static final int INITIAL_MEDIUM_ARRAY = 4096;
  87     static final int INITIAL_LARGE_ARRAY  = 8192;
  88     static final int INITIAL_ARRAY_16K    = 16384;
  89     static final int INITIAL_ARRAY_32K    = 32768;
  90     // alpha row dimension
  91     static final int INITIAL_AA_ARRAY     = INITIAL_PIXEL_DIM;
  92 
  93     // initial edges (24 bytes) = 24K [ints] = 96K
  94     static final int INITIAL_EDGES_CAPACITY = 4096 * 24; // 6 ints per edges
  95 
  96     // zero value as byte
  97     static final byte BYTE_0 = (byte) 0;
  98 
  99     // subpixels expressed as log2
 100     public static final int SUBPIXEL_LG_POSITIONS_X
 101         = MarlinProperties.getSubPixel_Log2_X();
 102     public static final int SUBPIXEL_LG_POSITIONS_Y
 103         = MarlinProperties.getSubPixel_Log2_Y();
 104 
 105     // number of subpixels
 106     public static final int SUBPIXEL_POSITIONS_X = 1 << (SUBPIXEL_LG_POSITIONS_X);
 107     public static final int SUBPIXEL_POSITIONS_Y = 1 << (SUBPIXEL_LG_POSITIONS_Y);
 108 
 109     public static final float NORM_SUBPIXELS
 110         = (float)Math.sqrt(( SUBPIXEL_POSITIONS_X * SUBPIXEL_POSITIONS_X
 111                            + SUBPIXEL_POSITIONS_Y * SUBPIXEL_POSITIONS_Y)/2.0);
 112 
 113     public static final int MAX_AA_ALPHA
 114         = SUBPIXEL_POSITIONS_X * SUBPIXEL_POSITIONS_Y;
 115 
 116     public static final int TILE_SIZE_LG = MarlinProperties.getTileSize_Log2();
 117     public static final int TILE_SIZE = 1 << TILE_SIZE_LG; // 32 by default
 118 
 119     public static final int BLOCK_SIZE_LG = MarlinProperties.getBlockSize_Log2();
 120     public static final int BLOCK_SIZE    = 1 << BLOCK_SIZE_LG;
 121 }