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;
  
  import android.util.Log;
  
  /**
   * Intrinsic for applying a 5x5 convolve to an allocation.
   *
   **/
  public class ScriptIntrinsicConvolve5x5 extends ScriptIntrinsic {
      private final float[] mValues = new float[25];
      private Allocation mInput;
      // API level for the intrinsic
      private static final int INTRINSIC_API_LEVEL = 19;
  
      ScriptIntrinsicConvolve5x5(long id, RenderScript rs) {
          super(id, rs);
      }
  
      /**
       * Supported elements types are {@link Element#U8}, {@link
       * Element#U8_2}, {@link Element#U8_3}, {@link Element#U8_4},
       * {@link Element#F32}, {@link Element#F32_2}, {@link
       * Element#F32_3}, and {@link Element#F32_4}.
       *
       * <p> The default coefficients are:
       * <code>
       * <p> [ 0,  0,  0,  0,  0  ]
       * <p> [ 0,  0,  0,  0,  0  ]
       * <p> [ 0,  0,  1,  0,  0  ]
       * <p> [ 0,  0,  0,  0,  0  ]
       * <p> [ 0,  0,  0,  0,  0  ]
       * </code>
       *
       * @param rs The RenderScript context
       * @param e Element type for intputs and outputs
       *
       * @return ScriptIntrinsicConvolve5x5
       */
      public static ScriptIntrinsicConvolve5x5 create(RenderScript rs, Element e) {
          if (!e.isCompatible(Element.U8(rs)) &&
              !e.isCompatible(Element.U8_2(rs)) &&
              !e.isCompatible(Element.U8_3(rs)) &&
              !e.isCompatible(Element.U8_4(rs)) &&
              !e.isCompatible(Element.F32(rs)) &&
              !e.isCompatible(Element.F32_2(rs)) &&
              !e.isCompatible(Element.F32_3(rs)) &&
              !e.isCompatible(Element.F32_4(rs))) {
              throw new RSIllegalArgumentException("Unsupported element type.");
          }
          long id;
          boolean mUseIncSupp = rs.isUseNative() &&
                                android.os.Build.VERSION.SDK_INT < INTRINSIC_API_LEVEL;
  
          id = rs.nScriptIntrinsicCreate(4, e.getID(rs), mUseIncSupp);
  
          ScriptIntrinsicConvolve5x5 si = new ScriptIntrinsicConvolve5x5(id, rs);
          si.setIncSupp(mUseIncSupp);
          return si;
  
      }
  
      /**
       * Set the input of the 5x5 convolve.
       * Must match the element type supplied during create.
       *
       * @param ain The input allocation.
       */
      public void setInput(Allocation ain) {
          mInput = ain;
          setVar(1, ain);
      }
  
      /**
      * Set the coefficients for the convolve.
      *
      * <p> The convolve layout is:
      * <code>
      * <p> [ 0,  1,  2,  3,  4  ]
      * <p> [ 5,  6,  7,  8,  9  ]
      * <p> [ 10, 11, 12, 13, 14 ]
      * <p> [ 15, 16, 17, 18, 19 ]
      * <p> [ 20, 21, 22, 23, 24 ]
      * </code>
      *
      * @param v The array of coefficients to set
      */
      public void setCoefficients(float v[]) {
          FieldPacker fp = new FieldPacker(25*4);
          for (int ct=0; ct < mValues.length; ct++) {
              mValues[ct] = v[ct];
              fp.addF32(mValues[ct]);
          }
          setVar(0, fp);
      }
  
      /**
       * Apply the filter to the input and save to the specified
       * allocation.
       *
       * @param aout Output allocation. Must match creation element
       *             type.
       */
      public void forEach(Allocation aout) {
          forEach(0, (Allocation) null, aout, null);
      }
  
      /**
       * Apply the filter to the input and save to the specified
       * allocation.
       *
       * @param aout Output allocation. Must match creation element
       *             type.
       * @param opt LaunchOptions for clipping
       */
      public void forEach(Allocation aout, Script.LaunchOptions opt) {
          forEach(0, (Allocation) null, aout, null, opt);
      }
  
  
      /**
       * 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(1, null);
      }
  }
  
  