1227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks/* 2227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks * Copyright (C) 2011 The Android Open Source Project 3227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks * 4227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks * Licensed under the Apache License, Version 2.0 (the "License"); 5227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks * you may not use this file except in compliance with the License. 6227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks * You may obtain a copy of the License at 7227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks * 8227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks * http://www.apache.org/licenses/LICENSE-2.0 9227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks * 10227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks * Unless required by applicable law or agreed to in writing, software 11227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks * distributed under the License is distributed on an "AS IS" BASIS, 12227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks * See the License for the specific language governing permissions and 14227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks * limitations under the License. 15227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks */ 16227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks 17227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendrickspackage androidx.media.filterfw; 18227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks 19227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricksimport android.annotation.TargetApi; 20227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricksimport android.renderscript.Allocation; 21227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks 22227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricksimport java.nio.ByteBuffer; 23227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricksimport java.nio.ByteOrder; 24227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks 25227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendrickspublic class FrameBuffer1D extends Frame { 26227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks 27227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks private int mLength = 0; 28227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks 29227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks /** 30227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks * Access frame's data using a {@link ByteBuffer}. 31227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks * This is a convenience method and is equivalent to calling {@code lockData} with an 32227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks * {@code accessFormat} of {@code ACCESS_BYTES}. 33227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks * When writing to the {@link ByteBuffer}, the byte order should be always set to 34227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks * {@link ByteOrder#nativeOrder()}. 35227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks * 36227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks * @return The byte buffer instance holding the Frame's data. 37227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks */ 38227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks public ByteBuffer lockBytes(int mode) { 39227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks assertAccessible(mode); 40227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks return (ByteBuffer)mBackingStore.lockData(mode, BackingStore.ACCESS_BYTES); 41227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks } 42227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks 43227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks /** 44227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks * Access frame's data using a RenderScript {@link Allocation}. 45227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks * This is a convenience method and is equivalent to calling {@code lockData} with an 46227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks * {@code accessFormat} of {@code ACCESS_ALLOCATION}. 47227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks * 48227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks * @return The Allocation instance holding the Frame's data. 49227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks */ 50227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks @TargetApi(11) 51227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks public Allocation lockAllocation(int mode) { 52227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks assertAccessible(mode); 53227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks return (Allocation) mBackingStore.lockData(mode, BackingStore.ACCESS_ALLOCATION); 54227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks } 55227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks 56227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks public int getLength() { 57227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks return mLength; 58227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks } 59227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks 60227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks @Override 61227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks public int[] getDimensions() { 62227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks return super.getDimensions(); 63227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks } 64227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks 65227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks /** 66227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks * TODO: Documentation. Note that frame contents are invalidated. 67227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks */ 68227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks @Override 69227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks public void resize(int[] newDimensions) { 70227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks super.resize(newDimensions); 71227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks } 72227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks 73227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks static FrameBuffer1D create(BackingStore backingStore) { 74227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks assertCanCreate(backingStore); 75227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks return new FrameBuffer1D(backingStore); 76227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks } 77227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks 78227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks FrameBuffer1D(BackingStore backingStore) { 79227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks super(backingStore); 80227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks updateLength(backingStore.getDimensions()); 81227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks } 82227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks 83227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks static void assertCanCreate(BackingStore backingStore) { 84227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks FrameType type = backingStore.getFrameType(); 85227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks if (type.getElementSize() == 0) { 86227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks throw new RuntimeException("Cannot access Frame of type " + type + " as a FrameBuffer " 87227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks + "instance!"); 88227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks } 89227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks int[] dims = backingStore.getDimensions(); 90227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks if (dims == null || dims.length == 0) { 91227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks throw new RuntimeException("Cannot access Frame with no dimensions as a FrameBuffer " 92227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks + "instance!"); 93227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks } 94227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks } 95227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks 96227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks void updateLength(int[] dimensions) { 97227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks mLength = 1; 98227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks for (int dim : dimensions) { 99227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks mLength *= dim; 100227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks } 101227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks } 102227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks} 103227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks 104