1ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams/* 2ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams * Copyright (C) 2012 The Android Open Source Project 3ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams * 4ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams * Licensed under the Apache License, Version 2.0 (the "License"); 5ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams * you may not use this file except in compliance with the License. 6ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams * You may obtain a copy of the License at 7ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams * 8ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams * http://www.apache.org/licenses/LICENSE-2.0 9ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams * 10ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams * Unless required by applicable law or agreed to in writing, software 11ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams * distributed under the License is distributed on an "AS IS" BASIS, 12ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams * See the License for the specific language governing permissions and 14ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams * limitations under the License. 15ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams */ 16ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams 17ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Samspackage android.support.v8.renderscript; 18ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams 19ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Samsimport android.content.Context; 20ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Samsimport android.content.res.Resources; 21ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Samsimport android.util.Log; 22ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams 23ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams/** 24ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams * Intrinsic Gausian blur filter. Applies a gaussian blur of the 25ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams * specified radius to all elements of an allocation. 26ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams * 27ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams * 28ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams **/ 29ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Samspublic final class ScriptIntrinsicBlur extends ScriptIntrinsic { 30ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams private final float[] mValues = new float[9]; 31ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams private Allocation mInput; 32ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams 33ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams private ScriptIntrinsicBlur(int id, RenderScript rs) { 34ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams super(id, rs); 35ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams } 36ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams 37ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams /** 38ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams * Create an intrinsic for applying a blur to an allocation. The 39ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams * default radius is 5.0. 40ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams * 41ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams * Supported elements types are {@link Element#U8_4} 42ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams * 43ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams * @param rs The Renderscript context 44ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams * @param e Element type for inputs and outputs 45ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams * 46ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams * @return ScriptIntrinsicBlur 47ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams */ 48ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams public static ScriptIntrinsicBlur create(RenderScript rs, Element e) { 49ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams if (e != Element.U8_4(rs)) { 50ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams throw new RSIllegalArgumentException("Unsuported element type."); 51ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams } 52ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams int id = rs.nScriptIntrinsicCreate(5, e.getID(rs)); 53ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams ScriptIntrinsicBlur sib = new ScriptIntrinsicBlur(id, rs); 54ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams sib.setRadius(5.f); 55ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams return sib; 56ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams } 57ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams 58ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams /** 59ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams * Set the input of the blur. 60ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams * Must match the element type supplied during create. 61ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams * 62ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams * @param ain The input allocation 63ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams */ 64ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams public void setInput(Allocation ain) { 65ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams mInput = ain; 66ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams bindAllocation(ain, 1); 67ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams } 68ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams 69ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams /** 70ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams * Set the radius of the Blur. 71ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams * 72ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams * Supported range 0 < radius <= 25 73ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams * 74ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams * @param radius The radius of the blur 75ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams */ 76ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams public void setRadius(float radius) { 77ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams if (radius <= 0 || radius > 25) { 78ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams throw new RSIllegalArgumentException("Radius out of range (0 < r <= 25)."); 79ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams } 80ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams setVar(0, radius); 81ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams } 82ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams 83ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams /** 84ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams * Apply the filter to the input and save to the specified 85ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams * allocation. 86ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams * 87ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams * @param aout Output allocation. Must match creation element 88ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams * type. 89ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams */ 90ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams public void forEach(Allocation aout) { 91ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams forEach(0, null, aout, null); 92ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams } 93ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams 94ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams /** 95ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams * Get a KernelID for this intrinsic kernel. 96ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams * 97ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams * @return Script.KernelID The KernelID object. 98ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams */ 99ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams public Script.KernelID getKernelID() { 100ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams return createKernelID(0, 2, null, null); 101ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams } 102ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams 103ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams /** 104ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams * Get a FieldID for the input field of this intrinsic. 105ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams * 106ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams * @return Script.FieldID The FieldID object. 107ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams */ 108ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams public Script.FieldID getFieldID_Input() { 109ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams return createFieldID(1, null); 110ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams } 111ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams} 112ca29b8caf56fa4866752f9cea4ec02b2a271dceeJason Sams 113