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