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 androidx.renderscript; 18 19 import android.util.Log; 20 21 /** 22 * 23 * Intrinsic for converting RGB to RGBA by using a 3D lookup table. The 24 * incoming r,g,b values are use as normalized x,y,z coordinates into a 3D 25 * allocation. The 8 nearest values are sampled and linearly interpolated. The 26 * result is placed in the output. 27 * 28 * @deprecated Renderscript has been deprecated in API level 31. Please refer to the <a 29 * href="https://developer.android.com/guide/topics/renderscript/migration-guide">migration 30 * guide</a> for the proposed alternatives. 31 **/ 32 @Deprecated 33 public class ScriptIntrinsic3DLUT extends ScriptIntrinsic { 34 private Allocation mLUT; 35 private Element mElement; 36 // API level for the intrinsic 37 private static final int INTRINSIC_API_LEVEL = 19; 38 ScriptIntrinsic3DLUT(long id, RenderScript rs, Element e)39 protected ScriptIntrinsic3DLUT(long id, RenderScript rs, Element e) { 40 super(id, rs); 41 mElement = e; 42 } 43 44 /** 45 * Supported elements types are {@link Element#U8_4} 46 * 47 * The defaults tables are identity. 48 * 49 * @param rs The RenderScript context 50 * @param e Element type for intputs and outputs 51 * 52 * @return ScriptIntrinsic3DLUT 53 */ create(RenderScript rs, Element e)54 public static ScriptIntrinsic3DLUT create(RenderScript rs, Element e) { 55 if (!e.isCompatible(Element.U8_4(rs))) { 56 throw new RSIllegalArgumentException("Element must be compatible with uchar4."); 57 } 58 long id; 59 boolean mUseIncSupp = rs.isUseNative() && 60 android.os.Build.VERSION.SDK_INT < INTRINSIC_API_LEVEL; 61 62 id = rs.nScriptIntrinsicCreate(8, e.getID(rs), mUseIncSupp); 63 64 ScriptIntrinsic3DLUT si = new ScriptIntrinsic3DLUT(id, rs, e); 65 si.setIncSupp(mUseIncSupp); 66 return si; 67 } 68 69 /** 70 * Sets the {@link androidx.renderscript.Allocation} to be used as 71 * the lookup table. 72 * 73 * The lookup table must use the same 74 * {@link androidx.renderscript.Element} as the intrinsic. 75 * 76 */ 77 78 public void setLUT(Allocation lut) { 79 final Type t = lut.getType(); 80 81 if (t.getZ() == 0) { 82 throw new RSIllegalArgumentException("LUT must be 3d."); 83 } 84 85 if (!t.getElement().isCompatible(mElement)) { 86 throw new RSIllegalArgumentException("LUT element type must match."); 87 } 88 89 mLUT = lut; 90 setVar(0, mLUT); 91 } 92 93 94 /** 95 * Invoke the kernel and apply the lookup to each cell of ain 96 * and copy to aout. 97 * 98 * @param ain Input allocation 99 * @param aout Output allocation 100 */ 101 public void forEach(Allocation ain, Allocation aout) { 102 forEach(0, ain, 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, 3, null, null); 112 } 113 } 114 115