content: /*
   * Copyright (C) 2011 The Android Open Source Project
   *
   * 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 android.filterpacks.imageproc;
  
  import android.filterfw.core.FilterContext;
  import android.filterfw.core.NativeProgram;
  import android.filterfw.core.Program;
  import android.filterfw.core.ShaderProgram;
  
  /**
   * @hide
   */
  public class BrightnessFilter extends SimpleImageFilter {
  
      private static final String mBrightnessShader =
              "precision mediump float;\n" +
              "uniform sampler2D tex_sampler_0;\n" +
              "uniform float brightness;\n" +
              "varying vec2 v_texcoord;\n" +
              "void main() {\n" +
              "  vec4 color = texture2D(tex_sampler_0, v_texcoord);\n" +
              "  gl_FragColor = brightness * color;\n" +
              "}\n";
  
      public BrightnessFilter(String name) {
          super(name, "brightness");
      }
  
      @Override
      protected Program getNativeProgram(FilterContext context) {
          return new NativeProgram("filterpack_imageproc", "brightness");
      }
  
      @Override
      protected Program getShaderProgram(FilterContext context) {
          return new ShaderProgram(context, mBrightnessShader);
      }
  
  }
  