1/* 2 * Copyright (C) 2012 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 17package android.support.v8.renderscript; 18 19import android.util.Log; 20 21/** 22 * Intrinsic for applying a 5x5 convolve to an allocation. 23 * 24 **/ 25public class ScriptIntrinsicConvolve5x5 extends ScriptIntrinsic { 26 private final float[] mValues = new float[25]; 27 private Allocation mInput; 28 29 ScriptIntrinsicConvolve5x5(int id, RenderScript rs) { 30 super(id, rs); 31 } 32 33 /** 34 * Supported elements types are {@link Element#U8_4} 35 * 36 * The default coefficients are. 37 * <code> 38 * <p> [ 0, 0, 0, 0, 0 ] 39 * <p> [ 0, 0, 0, 0, 0 ] 40 * <p> [ 0, 0, 1, 0, 0 ] 41 * <p> [ 0, 0, 0, 0, 0 ] 42 * <p> [ 0, 0, 0, 0, 0 ] 43 * </code> 44 * 45 * @param rs The RenderScript context 46 * @param e Element type for intputs and outputs 47 * 48 * @return ScriptIntrinsicConvolve5x5 49 */ 50 public static ScriptIntrinsicConvolve5x5 create(RenderScript rs, Element e) { 51 if (rs.isNative) { 52 RenderScriptThunker rst = (RenderScriptThunker) rs; 53 return ScriptIntrinsicConvolve5x5Thunker.create(rs, e); 54 } 55 int id = rs.nScriptIntrinsicCreate(4, e.getID(rs)); 56 return new ScriptIntrinsicConvolve5x5(id, rs); 57 58 } 59 60 /** 61 * Set the input of the blur. 62 * Must match the element type supplied during create. 63 * 64 * @param ain The input allocation. 65 */ 66 public void setInput(Allocation ain) { 67 mInput = ain; 68 setVar(1, ain); 69 } 70 71 /** 72 * Set the coefficients for the convolve. 73 * 74 * The convolve layout is 75 * <code> 76 * <p> [ 0, 1, 2, 3, 4 ] 77 * <p> [ 5, 6, 7, 8, 9 ] 78 * <p> [ 10, 11, 12, 13, 14 ] 79 * <p> [ 15, 16, 17, 18, 19 ] 80 * <p> [ 20, 21, 22, 23, 24 ] 81 * </code> 82 * 83 * @param v The array of coefficients to set 84 */ 85 public void setCoefficients(float v[]) { 86 FieldPacker fp = new FieldPacker(25*4); 87 for (int ct=0; ct < mValues.length; ct++) { 88 mValues[ct] = v[ct]; 89 fp.addF32(mValues[ct]); 90 } 91 setVar(0, fp); 92 } 93 94 /** 95 * Apply the filter to the input and save to the specified 96 * allocation. 97 * 98 * @param aout Output allocation. Must match creation element 99 * type. 100 */ 101 public void forEach(Allocation aout) { 102 forEach(0, null, aout, null); 103 } 104 105 /** 106 * Get a KernelID for this intrinsic kernel. 107 * 108 * @return Script.KernelID The KernelID object. 109 */ 110 public Script.KernelID getKernelID() { 111 return createKernelID(0, 2, null, null); 112 } 113 114 /** 115 * Get a FieldID for the input field of this intrinsic. 116 * 117 * @return Script.FieldID The FieldID object. 118 */ 119 public Script.FieldID getFieldID_Input() { 120 return createFieldID(1, null); 121 } 122} 123 124