1 /* 2 * Copyright (C) 2015 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.support.v8.renderscript; 18 19 import android.util.Log; 20 21 /** 22 * Intrinsic for performing a resize of a 2D allocation. 23 */ 24 public class ScriptIntrinsicResize extends ScriptIntrinsic { 25 private Allocation mInput; 26 // API level for the intrinsic 27 private static final int INTRINSIC_API_LEVEL = 21; 28 ScriptIntrinsicResize(long id, RenderScript rs)29 protected ScriptIntrinsicResize(long id, RenderScript rs) { 30 super(id, rs); 31 } 32 33 /** 34 * Supported elements types are {@link Element#U8}, {@link 35 * Element#U8_2}, {@link Element#U8_3}, {@link Element#U8_4} 36 * {@link Element#F32}, {@link Element#F32_2}, {@link 37 * Element#F32_3}, {@link Element#F32_4} 38 * 39 * @param rs The RenderScript context 40 * 41 * @return ScriptIntrinsicResize 42 */ create(RenderScript rs)43 public static ScriptIntrinsicResize create(RenderScript rs) { 44 long id; 45 boolean mUseIncSupp = rs.isUseNative() && 46 android.os.Build.VERSION.SDK_INT < INTRINSIC_API_LEVEL; 47 48 id = rs.nScriptIntrinsicCreate(12, 0, mUseIncSupp); 49 50 ScriptIntrinsicResize si = new ScriptIntrinsicResize(id, rs); 51 si.setIncSupp(mUseIncSupp); 52 return si; 53 54 } 55 56 /** 57 * Set the input of the resize. 58 * Must match the element type supplied during create. 59 * 60 * @param ain The input allocation. 61 */ 62 public void setInput(Allocation ain) { 63 Element e = ain.getElement(); 64 if (!e.isCompatible(Element.U8(mRS)) && 65 !e.isCompatible(Element.U8_2(mRS)) && 66 !e.isCompatible(Element.U8_3(mRS)) && 67 !e.isCompatible(Element.U8_4(mRS)) && 68 !e.isCompatible(Element.F32(mRS)) && 69 !e.isCompatible(Element.F32_2(mRS)) && 70 !e.isCompatible(Element.F32_3(mRS)) && 71 !e.isCompatible(Element.F32_4(mRS))) { 72 throw new RSIllegalArgumentException("Unsuported element type."); 73 } 74 75 mInput = ain; 76 setVar(0, ain); 77 } 78 79 /** 80 * Get a FieldID for the input field of this intrinsic. 81 * 82 * @return Script.FieldID The FieldID object. 83 */ 84 public Script.FieldID getFieldID_Input() { 85 return createFieldID(0, null); 86 } 87 88 89 /** 90 * Resize copy the input allocation to the output specified. The 91 * Allocation is rescaled if necessary using bi-cubic 92 * interpolation. 93 * 94 * @param aout Output allocation. Element type must match 95 * current input. Must not be same as input. 96 */ 97 public void forEach_bicubic(Allocation aout) { 98 if (aout == mInput) { 99 throw new RSIllegalArgumentException("Output cannot be same as Input."); 100 } 101 forEach_bicubic(aout, null); 102 } 103 104 /** 105 * Resize copy the input allocation to the output specified. The 106 * Allocation is rescaled if necessary using bi-cubic 107 * interpolation. 108 * 109 * @param aout Output allocation. Element type must match 110 * current input. 111 * @param opt LaunchOptions for clipping 112 */ 113 public void forEach_bicubic(Allocation aout, Script.LaunchOptions opt) { 114 forEach(0, (Allocation) null, aout, null, opt); 115 } 116 117 /** 118 * Get a KernelID for this intrinsic kernel. 119 * 120 * @return Script.KernelID The KernelID object. 121 */ 122 public Script.KernelID getKernelID_bicubic() { 123 return createKernelID(0, 2, null, null); 124 } 125 126 127 } 128