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.util.Arrays;
  29 import sun.awt.geom.PathConsumer2D;
  30 import static sun.java2d.marlin.OffHeapArray.SIZE_INT;
  31 import jdk.internal.misc.Unsafe;
  32 
  33 final class Renderer implements PathConsumer2D, MarlinConst {
  34 
  35     static final boolean DISABLE_RENDER = false;
  36 
  37     static final boolean ENABLE_BLOCK_FLAGS = MarlinProperties.isUseTileFlags();
  38     static final boolean ENABLE_BLOCK_FLAGS_HEURISTICS = MarlinProperties.isUseTileFlagsWithHeuristics();
  39 
  40     private static final int ALL_BUT_LSB = 0xfffffffe;
  41     private static final int ERR_STEP_MAX = 0x7fffffff; // = 2^31 - 1
  42 
  43     private static final double POWER_2_TO_32 = FloatMath.powerOfTwoD(32);
  44 
  45     // use float to make tosubpix methods faster (no int to float conversion)
  46     public static final float f_SUBPIXEL_POSITIONS_X
  47         = (float) SUBPIXEL_POSITIONS_X;
  48     public static final float f_SUBPIXEL_POSITIONS_Y
  49         = (float) SUBPIXEL_POSITIONS_Y;
  50     public static final int SUBPIXEL_MASK_X = SUBPIXEL_POSITIONS_X - 1;
  51     public static final int SUBPIXEL_MASK_Y = SUBPIXEL_POSITIONS_Y - 1;
  52 
  53     // number of subpixels corresponding to a tile line
  54     private static final int SUBPIXEL_TILE
  55         = TILE_SIZE << SUBPIXEL_LG_POSITIONS_Y;
  56 
  57     // 2048 (pixelSize) pixels (height) x 8 subpixels = 64K
  58     static final int INITIAL_BUCKET_ARRAY
  59         = INITIAL_PIXEL_DIM * SUBPIXEL_POSITIONS_Y;
  60 
  61     public static final int WIND_EVEN_ODD = 0;
  62     public static final int WIND_NON_ZERO = 1;
  63 

   1 /*
   2  * Copyright (c) 2007, 2016, 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.util.Arrays;
  29 import sun.awt.geom.PathConsumer2D;
  30 import static sun.java2d.marlin.OffHeapArray.SIZE_INT;
  31 import jdk.internal.misc.Unsafe;
  32 
  33 final class Renderer implements PathConsumer2D, MarlinConst {
  34 
  35     static final boolean DISABLE_RENDER = false;
  36 
  37     static final boolean ENABLE_BLOCK_FLAGS = MarlinProperties.isUseTileFlags();
  38     static final boolean ENABLE_BLOCK_FLAGS_HEURISTICS = MarlinProperties.isUseTileFlagsWithHeuristics();
  39 
  40     private static final int ALL_BUT_LSB = 0xfffffffe;
  41     private static final int ERR_STEP_MAX = 0x7fffffff; // = 2^31 - 1
  42 
  43     private static final double POWER_2_TO_32 = 0x1.0p32;
  44 
  45     // use float to make tosubpix methods faster (no int to float conversion)
  46     public static final float f_SUBPIXEL_POSITIONS_X
  47         = (float) SUBPIXEL_POSITIONS_X;
  48     public static final float f_SUBPIXEL_POSITIONS_Y
  49         = (float) SUBPIXEL_POSITIONS_Y;
  50     public static final int SUBPIXEL_MASK_X = SUBPIXEL_POSITIONS_X - 1;
  51     public static final int SUBPIXEL_MASK_Y = SUBPIXEL_POSITIONS_Y - 1;
  52 
  53     // number of subpixels corresponding to a tile line
  54     private static final int SUBPIXEL_TILE
  55         = TILE_SIZE << SUBPIXEL_LG_POSITIONS_Y;
  56 
  57     // 2048 (pixelSize) pixels (height) x 8 subpixels = 64K
  58     static final int INITIAL_BUCKET_ARRAY
  59         = INITIAL_PIXEL_DIM * SUBPIXEL_POSITIONS_Y;
  60 
  61     public static final int WIND_EVEN_ODD = 0;
  62     public static final int WIND_NON_ZERO = 1;
  63