1 /* 2 * Copyright (C) 2014 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 /** 20 * Intrinsic for performing a resize of a 2D allocation. 21 */ 22 public final class ScriptIntrinsicResize extends ScriptIntrinsic { 23 private Allocation mInput; 24 25 private ScriptIntrinsicResize(long id, RenderScript rs) { 26 super(id, rs); 27 } 28 29 /** 30 * Supported elements types are {@link Element#U8}, {@link 31 * Element#U8_2}, {@link Element#U8_3}, {@link Element#U8_4} 32 * 33 * @param rs The RenderScript context 34 * 35 * @return ScriptIntrinsicResize 36 */ 37 public static ScriptIntrinsicResize create(RenderScript rs) { 38 long id = rs.nScriptIntrinsicCreate(12, 0); 39 ScriptIntrinsicResize si = new ScriptIntrinsicResize(id, rs); 40 return si; 41 42 } 43 44 /** 45 * Set the input of the resize. 46 * Must match the element type supplied during create. 47 * 48 * @param ain The input allocation. 49 */ 50 public void setInput(Allocation ain) { 51 Element e = ain.getElement(); 52 if (!e.isCompatible(Element.U8(mRS)) && 53 !e.isCompatible(Element.U8_2(mRS)) && 54 !e.isCompatible(Element.U8_3(mRS)) && 55 !e.isCompatible(Element.U8_4(mRS))) { 56 throw new RSIllegalArgumentException("Unsuported element type."); 57 } 58 59 mInput = ain; 60 setVar(0, ain); 61 } 62 63 /** 64 * Get a FieldID for the input field of this intrinsic. 65 * 66 * @return Script.FieldID The FieldID object. 67 */ 68 public Script.FieldID getFieldID_Input() { 69 return createFieldID(0, null); 70 } 71 72 73 /** 74 * Resize copy the input allocation to the output specified. The 75 * Allocation is rescaled if necessary using bi-cubic 76 * interpolation. 77 * 78 * @param aout Output allocation. Element type must match 79 * current input. Must not be same as input. 80 */ 81 public void forEach_bicubic(Allocation aout) { 82 if (aout == mInput) { 83 throw new RSIllegalArgumentException("Output cannot be same as Input."); 84 } 85 forEach_bicubic(aout, null); 86 } 87 88 /** 89 * Resize copy the input allocation to the output specified. The 90 * Allocation is rescaled if necessary using bi-cubic 91 * interpolation. 92 * 93 * @param aout Output allocation. Element type must match 94 * current input. 95 * @param opt LaunchOptions for clipping 96 */ 97 public void forEach_bicubic(Allocation aout, Script.LaunchOptions opt) { 98 forEach(0, (Allocation) null, aout, null, opt); 99 } 100 101 /** 102 * Get a KernelID for this intrinsic kernel. 103 * 104 * @return Script.KernelID The KernelID object. 105 */ 106 public Script.KernelID getKernelID_bicubic() { 107 return createKernelID(0, 2, null, null); 108 } 109 110 111 } 112