1 /* 2 * Copyright (C) 2011 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 18 package android.filterfw.format; 19 20 import android.compat.annotation.UnsupportedAppUsage; 21 import android.filterfw.core.FrameFormat; 22 import android.filterfw.core.MutableFrameFormat; 23 import android.graphics.Bitmap; 24 25 /** 26 * @hide 27 */ 28 public class ImageFormat { 29 30 public static final String COLORSPACE_KEY = "colorspace"; 31 32 public static final int COLORSPACE_GRAY = 1; 33 public static final int COLORSPACE_RGB = 2; 34 public static final int COLORSPACE_RGBA = 3; 35 public static final int COLORSPACE_YUV = 4; 36 create(int width, int height, int colorspace, int bytesPerSample, int target)37 public static MutableFrameFormat create(int width, 38 int height, 39 int colorspace, 40 int bytesPerSample, 41 int target) { 42 MutableFrameFormat result = new MutableFrameFormat(FrameFormat.TYPE_BYTE, target); 43 result.setDimensions(width, height); 44 result.setBytesPerSample(bytesPerSample); 45 result.setMetaValue(COLORSPACE_KEY, colorspace); 46 if (target == FrameFormat.TARGET_SIMPLE) { 47 result.setObjectClass(Bitmap.class); 48 } 49 return result; 50 } 51 52 @UnsupportedAppUsage create(int width, int height, int colorspace, int target)53 public static MutableFrameFormat create(int width, 54 int height, 55 int colorspace, 56 int target) { 57 return create(width, 58 height, 59 colorspace, 60 bytesPerSampleForColorspace(colorspace), 61 target); 62 } 63 64 @UnsupportedAppUsage create(int colorspace, int target)65 public static MutableFrameFormat create(int colorspace, int target) { 66 return create(FrameFormat.SIZE_UNSPECIFIED, 67 FrameFormat.SIZE_UNSPECIFIED, 68 colorspace, 69 bytesPerSampleForColorspace(colorspace), 70 target); 71 } 72 73 @UnsupportedAppUsage create(int colorspace)74 public static MutableFrameFormat create(int colorspace) { 75 return create(FrameFormat.SIZE_UNSPECIFIED, 76 FrameFormat.SIZE_UNSPECIFIED, 77 colorspace, 78 bytesPerSampleForColorspace(colorspace), 79 FrameFormat.TARGET_UNSPECIFIED); 80 } 81 bytesPerSampleForColorspace(int colorspace)82 public static int bytesPerSampleForColorspace(int colorspace) { 83 switch (colorspace) { 84 case COLORSPACE_GRAY: 85 return 1; 86 case COLORSPACE_RGB: 87 return 3; 88 case COLORSPACE_RGBA: 89 return 4; 90 case COLORSPACE_YUV: 91 return 3; 92 default: 93 throw new RuntimeException("Unknown colorspace id " + colorspace + "!"); 94 } 95 } 96 } 97