content: /*
   * Copyright (C) 2012 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 androidx.renderscript;
  
  
  /**
   * Intrinsic for converting an Android YUV buffer to RGB.
   *
   * The input allocation is supplied in NV21 format as a U8
   * element type. The output is RGBA, the alpha channel will be
   * set to 255.
   */
  public class ScriptIntrinsicYuvToRGB extends ScriptIntrinsic {
      private Allocation mInput;
      // API level for the intrinsic
      private static final int INTRINSIC_API_LEVEL = 19;
  
      ScriptIntrinsicYuvToRGB(long id, RenderScript rs) {
          super(id, rs);
      }
  
      /**
       * Create an intrinsic for converting YUV to RGB.
       *
       * Supported elements types are {@link Element#U8_4}
       *
       * @param rs The RenderScript context
       * @param e Element type for output
       *
       * @return ScriptIntrinsicYuvToRGB
       */
      public static ScriptIntrinsicYuvToRGB create(RenderScript rs, Element e) {
          // 6 comes from RS_SCRIPT_INTRINSIC_YUV_TO_RGB in rsDefines.h
          long id;
          boolean mUseIncSupp = rs.isUseNative() &&
                                android.os.Build.VERSION.SDK_INT < INTRINSIC_API_LEVEL;
  
          id = rs.nScriptIntrinsicCreate(6, e.getID(rs), mUseIncSupp);
  
          ScriptIntrinsicYuvToRGB si = new ScriptIntrinsicYuvToRGB(id, rs);
          si.setIncSupp(mUseIncSupp);
          return si;
      }
  
  
      /**
       * Set the input yuv allocation, must be {@link Element#U8}.
       *
       * @param ain The input allocation.
       */
      public void setInput(Allocation ain) {
          mInput = ain;
          setVar(0, ain);
      }
  
      /**
       * Convert the image to RGB.
       *
       * @param aout Output allocation. Must match creation element
       *             type.
       */
      public void forEach(Allocation aout) {
          forEach(0, (Allocation) null, aout, null);
      }
  
      /**
       * Get a KernelID for this intrinsic kernel.
       *
       * @return Script.KernelID The KernelID object.
       */
      public Script.KernelID getKernelID() {
          return createKernelID(0, 2, null, null);
      }
  
      /**
       * Get a FieldID for the input field of this intrinsic.
       *
       * @return Script.FieldID The FieldID object.
       */
      public Script.FieldID getFieldID_Input() {
          return createFieldID(0, null);
      }
  }
  