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.pisces;
  27 
  28 import java.util.Arrays;
  29 
  30 /**
  31  * An object used to cache pre-rendered complex paths.
  32  *
  33  * @see PiscesRenderer#render
  34  */
  35 final class PiscesCache {
  36 
  37     final int bboxX0, bboxY0, bboxX1, bboxY1;
  38 
  39     // rowAARLE[i] holds the encoding of the pixel row with y = bboxY0+i.
  40     // The format of each of the inner arrays is: rowAARLE[i][0,1] = (x0, n)
  41     // where x0 is the first x in row i with nonzero alpha, and n is the
  42     // number of RLE entries in this row. rowAARLE[i][j,j+1] for j>1 is
  43     // (val,runlen)
  44     final int[][] rowAARLE;
  45 
  46     // RLE encodings are added in increasing y rows and then in increasing
  47     // x inside those rows. Therefore, at any one time there is a well
  48     // defined position (x,y) where a run length is about to be added (or
  49     // the row terminated). x0,y0 is this (x,y)-(bboxX0,bboxY0). They
  50     // are used to get indices into the current tile.
  51     private int x0 = Integer.MIN_VALUE, y0 = Integer.MIN_VALUE;
  52 
  53     // touchedTile[i][j] is the sum of all the alphas in the tile with

  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.pisces;
  27 
  28 import java.util.Arrays;
  29 
  30 /**
  31  * An object used to cache pre-rendered complex paths.


  32  */
  33 final class PiscesCache {
  34 
  35     final int bboxX0, bboxY0, bboxX1, bboxY1;
  36 
  37     // rowAARLE[i] holds the encoding of the pixel row with y = bboxY0+i.
  38     // The format of each of the inner arrays is: rowAARLE[i][0,1] = (x0, n)
  39     // where x0 is the first x in row i with nonzero alpha, and n is the
  40     // number of RLE entries in this row. rowAARLE[i][j,j+1] for j>1 is
  41     // (val,runlen)
  42     final int[][] rowAARLE;
  43 
  44     // RLE encodings are added in increasing y rows and then in increasing
  45     // x inside those rows. Therefore, at any one time there is a well
  46     // defined position (x,y) where a run length is about to be added (or
  47     // the row terminated). x0,y0 is this (x,y)-(bboxX0,bboxY0). They
  48     // are used to get indices into the current tile.
  49     private int x0 = Integer.MIN_VALUE, y0 = Integer.MIN_VALUE;
  50 
  51     // touchedTile[i][j] is the sum of all the alphas in the tile with