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 20 /** 21 * Intrinsic for converting an Android YUV buffer to RGB. 22 * 23 * The input allocation is supplied in NV21 format as a U8 24 * element type. The output is RGBA, the alpha channel will be 25 * set to 255. 26 * 27 * @deprecated Renderscript has been deprecated in API level 31. Please refer to the <a 28 * href="https://developer.android.com/guide/topics/renderscript/migration-guide">migration 29 * guide</a> for the proposed alternatives. 30 */ 31 @Deprecated 32 public class ScriptIntrinsicYuvToRGB extends ScriptIntrinsic { 33 private Allocation mInput; 34 // API level for the intrinsic 35 private static final int INTRINSIC_API_LEVEL = 19; 36 ScriptIntrinsicYuvToRGB(long id, RenderScript rs)37 ScriptIntrinsicYuvToRGB(long id, RenderScript rs) { 38 super(id, rs); 39 } 40 41 /** 42 * Create an intrinsic for converting YUV to RGB. 43 * 44 * Supported elements types are {@link Element#U8_4} 45 * 46 * @param rs The RenderScript context 47 * @param e Element type for output 48 * 49 * @return ScriptIntrinsicYuvToRGB 50 */ create(RenderScript rs, Element e)51 public static ScriptIntrinsicYuvToRGB create(RenderScript rs, Element e) { 52 // 6 comes from RS_SCRIPT_INTRINSIC_YUV_TO_RGB in rsDefines.h 53 long id; 54 boolean mUseIncSupp = rs.isUseNative() && 55 android.os.Build.VERSION.SDK_INT < INTRINSIC_API_LEVEL; 56 57 id = rs.nScriptIntrinsicCreate(6, e.getID(rs), mUseIncSupp); 58 59 ScriptIntrinsicYuvToRGB si = new ScriptIntrinsicYuvToRGB(id, rs); 60 si.setIncSupp(mUseIncSupp); 61 return si; 62 } 63 64 65 /** 66 * Set the input yuv allocation, must be {@link Element#U8}. 67 * 68 * @param ain The input allocation. 69 */ 70 public void setInput(Allocation ain) { 71 mInput = ain; 72 setVar(0, ain); 73 } 74 75 /** 76 * Convert the image to RGB. 77 * 78 * @param aout Output allocation. Must match creation element 79 * type. 80 */ 81 public void forEach(Allocation aout) { 82 forEach(0, (Allocation) null, aout, null); 83 } 84 85 /** 86 * Get a KernelID for this intrinsic kernel. 87 * 88 * @return Script.KernelID The KernelID object. 89 */ 90 public Script.KernelID getKernelID() { 91 return createKernelID(0, 2, null, null); 92 } 93 94 /** 95 * Get a FieldID for the input field of this intrinsic. 96 * 97 * @return Script.FieldID The FieldID object. 98 */ 99 public Script.FieldID getFieldID_Input() { 100 return createFieldID(0, null); 101 } 102 } 103