Jason Sams | 3a5b801 | 2012-09-08 22:16:14 -0700 | [diff] [blame] | 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 | |
| 17 | package android.renderscript; |
| 18 | |
| 19 | import android.content.Context; |
| 20 | import android.content.res.Resources; |
| 21 | import android.util.Log; |
| 22 | |
| 23 | /** |
Jason Sams | 80d8190 | 2012-09-13 17:00:48 -0700 | [diff] [blame] | 24 | * Intrinsic Gausian blur filter. Applies a gaussian blur of the |
| 25 | * specified radius to all elements of an allocation. |
| 26 | * |
| 27 | * |
Jason Sams | 3a5b801 | 2012-09-08 22:16:14 -0700 | [diff] [blame] | 28 | **/ |
Jason Sams | 80d8190 | 2012-09-13 17:00:48 -0700 | [diff] [blame] | 29 | public final class ScriptIntrinsicBlur extends ScriptIntrinsic { |
| 30 | private final float[] mValues = new float[9]; |
Jason Sams | 3a5b801 | 2012-09-08 22:16:14 -0700 | [diff] [blame] | 31 | private Allocation mInput; |
| 32 | |
Jason Sams | 80d8190 | 2012-09-13 17:00:48 -0700 | [diff] [blame] | 33 | private ScriptIntrinsicBlur(int id, RenderScript rs) { |
Jason Sams | 3a5b801 | 2012-09-08 22:16:14 -0700 | [diff] [blame] | 34 | super(id, rs); |
| 35 | } |
| 36 | |
| 37 | /** |
Jason Sams | 80d8190 | 2012-09-13 17:00:48 -0700 | [diff] [blame] | 38 | * Create an intrinsic for applying a blur to an allocation. The |
| 39 | * default radius is 5.0. |
Jason Sams | 3a5b801 | 2012-09-08 22:16:14 -0700 | [diff] [blame] | 40 | * |
Jason Sams | 80d8190 | 2012-09-13 17:00:48 -0700 | [diff] [blame] | 41 | * Supported elements types are {@link Element#U8_4} |
Jason Sams | 3a5b801 | 2012-09-08 22:16:14 -0700 | [diff] [blame] | 42 | * |
Jason Sams | 80d8190 | 2012-09-13 17:00:48 -0700 | [diff] [blame] | 43 | * @param rs The Renderscript context |
| 44 | * @param e Element type for inputs and outputs |
Jason Sams | 3a5b801 | 2012-09-08 22:16:14 -0700 | [diff] [blame] | 45 | * |
Jason Sams | 80d8190 | 2012-09-13 17:00:48 -0700 | [diff] [blame] | 46 | * @return ScriptIntrinsicBlur |
Jason Sams | 3a5b801 | 2012-09-08 22:16:14 -0700 | [diff] [blame] | 47 | */ |
| 48 | public static ScriptIntrinsicBlur create(RenderScript rs, Element e) { |
Tim Murray | bddc7ff | 2013-04-01 11:35:35 -0700 | [diff] [blame] | 49 | if ((!e.isCompatible(Element.U8_4(rs))) && (!e.isCompatible(Element.U8(rs)))) { |
Jason Sams | 80d8190 | 2012-09-13 17:00:48 -0700 | [diff] [blame] | 50 | throw new RSIllegalArgumentException("Unsuported element type."); |
| 51 | } |
Jason Sams | 3a5b801 | 2012-09-08 22:16:14 -0700 | [diff] [blame] | 52 | int id = rs.nScriptIntrinsicCreate(5, e.getID(rs)); |
Jason Sams | 80d8190 | 2012-09-13 17:00:48 -0700 | [diff] [blame] | 53 | ScriptIntrinsicBlur sib = new ScriptIntrinsicBlur(id, rs); |
| 54 | sib.setRadius(5.f); |
| 55 | return sib; |
Jason Sams | 3a5b801 | 2012-09-08 22:16:14 -0700 | [diff] [blame] | 56 | } |
| 57 | |
Jason Sams | 80d8190 | 2012-09-13 17:00:48 -0700 | [diff] [blame] | 58 | /** |
| 59 | * Set the input of the blur. |
| 60 | * Must match the element type supplied during create. |
| 61 | * |
| 62 | * @param ain The input allocation |
| 63 | */ |
Jason Sams | 3a5b801 | 2012-09-08 22:16:14 -0700 | [diff] [blame] | 64 | public void setInput(Allocation ain) { |
| 65 | mInput = ain; |
Jason Sams | e6a7886 | 2012-10-15 15:45:12 -0700 | [diff] [blame] | 66 | setVar(1, ain); |
Jason Sams | 3a5b801 | 2012-09-08 22:16:14 -0700 | [diff] [blame] | 67 | } |
| 68 | |
Jason Sams | 80d8190 | 2012-09-13 17:00:48 -0700 | [diff] [blame] | 69 | /** |
| 70 | * Set the radius of the Blur. |
| 71 | * |
Jason Sams | 31864d7 | 2012-10-02 15:21:11 -0700 | [diff] [blame] | 72 | * Supported range 0 < radius <= 25 |
Jason Sams | 80d8190 | 2012-09-13 17:00:48 -0700 | [diff] [blame] | 73 | * |
| 74 | * @param radius The radius of the blur |
| 75 | */ |
| 76 | public void setRadius(float radius) { |
Jason Sams | 31864d7 | 2012-10-02 15:21:11 -0700 | [diff] [blame] | 77 | if (radius <= 0 || radius > 25) { |
| 78 | throw new RSIllegalArgumentException("Radius out of range (0 < r <= 25)."); |
Jason Sams | 3a5b801 | 2012-09-08 22:16:14 -0700 | [diff] [blame] | 79 | } |
Jason Sams | 80d8190 | 2012-09-13 17:00:48 -0700 | [diff] [blame] | 80 | setVar(0, radius); |
Jason Sams | 3a5b801 | 2012-09-08 22:16:14 -0700 | [diff] [blame] | 81 | } |
| 82 | |
Jason Sams | 80d8190 | 2012-09-13 17:00:48 -0700 | [diff] [blame] | 83 | /** |
| 84 | * Apply the filter to the input and save to the specified |
| 85 | * allocation. |
| 86 | * |
| 87 | * @param aout Output allocation. Must match creation element |
| 88 | * type. |
| 89 | */ |
Jason Sams | 3a5b801 | 2012-09-08 22:16:14 -0700 | [diff] [blame] | 90 | public void forEach(Allocation aout) { |
| 91 | forEach(0, null, aout, null); |
| 92 | } |
| 93 | |
Jason Sams | 08a8158 | 2012-09-18 12:32:10 -0700 | [diff] [blame] | 94 | /** |
| 95 | * Get a KernelID for this intrinsic kernel. |
| 96 | * |
| 97 | * @return Script.KernelID The KernelID object. |
| 98 | */ |
| 99 | public Script.KernelID getKernelID() { |
| 100 | return createKernelID(0, 2, null, null); |
| 101 | } |
| 102 | |
| 103 | /** |
| 104 | * Get a FieldID for the input field of this intrinsic. |
| 105 | * |
| 106 | * @return Script.FieldID The FieldID object. |
| 107 | */ |
| 108 | public Script.FieldID getFieldID_Input() { |
| 109 | return createFieldID(1, null); |
| 110 | } |
Jason Sams | 3a5b801 | 2012-09-08 22:16:14 -0700 | [diff] [blame] | 111 | } |
| 112 | |