content: /*
   * Copyright (C) 2012 CyberAgent
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   * http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package jp.co.cyberagent.android.gpuimage;
  
  /**
   * Applies an emboss effect to the image.<br>
   * <br>
   * Intensity ranges from 0.0 to 4.0, with 1.0 as the normal level
   */
  public class GPUImageEmbossFilter extends GPUImage3x3ConvolutionFilter {
      private float mIntensity;
  
      public GPUImageEmbossFilter() {
          this(1.0f);
      }
  
      public GPUImageEmbossFilter(final float intensity) {
          super();
          mIntensity = intensity;
      }
  
      @Override
      public void onInit() {
          super.onInit();
          setIntensity(mIntensity);
      }
  
      public void setIntensity(final float intensity) {
          mIntensity = intensity;
          setConvolutionKernel(new float[] {
                  intensity * (-2.0f), -intensity, 0.0f,
                  -intensity, 1.0f, intensity,
                  0.0f, intensity, intensity * 2.0f,
          });
      }
  
      public float getIntensity() {
          return mIntensity;
      }
  }
  