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      1 /*
      2  * Copyright (C) 2006 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package android.graphics;
     18 
     19 /**
     20  * @hide
     21  */
     22 public class TableMaskFilter extends MaskFilter {
     23 
     24     public TableMaskFilter(byte[] table) {
     25         if (table.length < 256) {
     26             throw new RuntimeException("table.length must be >= 256");
     27         }
     28         native_instance = nativeNewTable(table);
     29     }
     30 
     31     private TableMaskFilter(int ni) {
     32         native_instance = ni;
     33     }
     34 
     35     public static TableMaskFilter CreateClipTable(int min, int max) {
     36         return new TableMaskFilter(nativeNewClip(min, max));
     37     }
     38 
     39     public static TableMaskFilter CreateGammaTable(float gamma) {
     40         return new TableMaskFilter(nativeNewGamma(gamma));
     41     }
     42 
     43     private static native int nativeNewTable(byte[] table);
     44     private static native int nativeNewClip(int min, int max);
     45     private static native int nativeNewGamma(float gamma);
     46 }
     47