BitmapFactory.java revision a9d0d47076ecf2d1739bb3534abc9deead8ebebd
19066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/* 29066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Copyright (C) 2007 The Android Open Source Project 39066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Licensed under the Apache License, Version 2.0 (the "License"); 59066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * you may not use this file except in compliance with the License. 69066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * You may obtain a copy of the License at 79066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 89066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 99066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unless required by applicable law or agreed to in writing, software 119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * See the License for the specific language governing permissions and 149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * limitations under the License. 159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpackage android.graphics; 189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.res.AssetManager; 209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.res.Resources; 219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.util.DisplayMetrics; 22eb949674fd3b83b706f795fc6b16ab1c66250c93Wei-Ta Chenimport android.util.TypedValue; 239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.io.BufferedInputStream; 25eb949674fd3b83b706f795fc6b16ab1c66250c93Wei-Ta Chenimport java.io.FileDescriptor; 269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.io.FileInputStream; 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.io.IOException; 28eb949674fd3b83b706f795fc6b16ab1c66250c93Wei-Ta Chenimport java.io.InputStream; 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 31eb949674fd3b83b706f795fc6b16ab1c66250c93Wei-Ta Chen * Creates Bitmap objects from various sources, including files, streams, 32eb949674fd3b83b706f795fc6b16ab1c66250c93Wei-Ta Chen * and byte-arrays. 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic class BitmapFactory { 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static class Options { 369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Create a default Options object, which if left unchanged will give 389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the same result from the decoder as if null were passed. 399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Options() { 41207b3ab604bcbe47fa55f26f358cde60cf8a784dRomain Guy inDither = false; 429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project inScaled = true; 439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4637f74cad46c6f1799aec3c52e8f47598237f43d4Chet Haase * If set, decode methods that take the Options object will attempt to 47decc8cd41eca3770c8f5ee13d81b9cd5f0c25ccdChet Haase * reuse this bitmap when loading content. If the decode operation cannot 48decc8cd41eca3770c8f5ee13d81b9cd5f0c25ccdChet Haase * use this bitmap, the decode method will return <code>null</code> and 49decc8cd41eca3770c8f5ee13d81b9cd5f0c25ccdChet Haase * will throw an IllegalArgumentException. The 5037f74cad46c6f1799aec3c52e8f47598237f43d4Chet Haase * current implementation necessitates that the reused bitmap be of the 51decc8cd41eca3770c8f5ee13d81b9cd5f0c25ccdChet Haase * same size as the source content and in jpeg or png format (whether as a 5237f74cad46c6f1799aec3c52e8f47598237f43d4Chet Haase * resource or as a stream). The {@link android.graphics.Bitmap.Config 5337f74cad46c6f1799aec3c52e8f47598237f43d4Chet Haase * configuration} of the reused bitmap will override the setting of 5437f74cad46c6f1799aec3c52e8f47598237f43d4Chet Haase * {@link #inPreferredConfig}, if set. 5537f74cad46c6f1799aec3c52e8f47598237f43d4Chet Haase * 5637f74cad46c6f1799aec3c52e8f47598237f43d4Chet Haase * <p>You should still always use the returned Bitmap of the decode 5737f74cad46c6f1799aec3c52e8f47598237f43d4Chet Haase * method and not assume that reusing the bitmap worked, due to the 5837f74cad46c6f1799aec3c52e8f47598237f43d4Chet Haase * constraints outlined above and failure situations that can occur. 5937f74cad46c6f1799aec3c52e8f47598237f43d4Chet Haase * Checking whether the return value matches the value of the inBitmap 6037f74cad46c6f1799aec3c52e8f47598237f43d4Chet Haase * set in the Options structure is a way to see if the bitmap was reused, 6137f74cad46c6f1799aec3c52e8f47598237f43d4Chet Haase * but in all cases you should use the returned Bitmap to make sure 6237f74cad46c6f1799aec3c52e8f47598237f43d4Chet Haase * that you are using the bitmap that was used as the decode destination.</p> 6337f74cad46c6f1799aec3c52e8f47598237f43d4Chet Haase */ 6437f74cad46c6f1799aec3c52e8f47598237f43d4Chet Haase public Bitmap inBitmap; 6537f74cad46c6f1799aec3c52e8f47598237f43d4Chet Haase 6637f74cad46c6f1799aec3c52e8f47598237f43d4Chet Haase /** 679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * If set to true, the decoder will return null (no bitmap), but 689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the out... fields will still be set, allowing the caller to query 699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bitmap without having to allocate the memory for its pixels. 709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean inJustDecodeBounds; 729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * If set to a value > 1, requests the decoder to subsample the original 759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * image, returning a smaller image to save memory. The sample size is 769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the number of pixels in either dimension that correspond to a single 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * pixel in the decoded bitmap. For example, inSampleSize == 4 returns 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * an image that is 1/4 the width/height of the original, and 1/16 the 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * number of pixels. Any value <= 1 is treated the same as 1. Note: the 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * decoder will try to fulfill this request, but the resulting bitmap 819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * may have different dimensions that precisely what has been requested. 829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Also, powers of 2 are often faster/easier for the decoder to honor. 839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int inSampleSize; 85eb949674fd3b83b706f795fc6b16ab1c66250c93Wei-Ta Chen 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * If this is non-null, the decoder will try to decode into this 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * internal configuration. If it is null, or the request cannot be met, 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the decoder will try to pick the best matching config based on the 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * system's screen depth, and characteristics of the original image such 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * as if it has per-pixel alpha (requiring a config that also does). 92207b3ab604bcbe47fa55f26f358cde60cf8a784dRomain Guy * 93207b3ab604bcbe47fa55f26f358cde60cf8a784dRomain Guy * Image are loaded with the {@link Bitmap.Config#ARGB_8888} config by 94207b3ab604bcbe47fa55f26f358cde60cf8a784dRomain Guy * default. 959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 96207b3ab604bcbe47fa55f26f358cde60cf8a784dRomain Guy public Bitmap.Config inPreferredConfig = Bitmap.Config.ARGB_8888; 97eb949674fd3b83b706f795fc6b16ab1c66250c93Wei-Ta Chen 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 997341d7a104b47996445d069a695e155a07184606Dianne Hackborn * If dither is true, the decoder will attempt to dither the decoded 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * image. 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean inDither; 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10511ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * The pixel density to use for the bitmap. This will always result 10611ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * in the returned bitmap having a density set for it (see 1076e1df0e981c8c588e411b8ad6e55554fe4815655Gilles Debunne * {@link Bitmap#setDensity(int) Bitmap.setDensity(int)}). In addition, 10811ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * if {@link #inScaled} is set (which it is by default} and this 10911ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * density does not match {@link #inTargetDensity}, then the bitmap 11011ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * will be scaled to the target density before being returned. 11111ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * 11211ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * <p>If this is 0, 11311ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * {@link BitmapFactory#decodeResource(Resources, int)}, 11411ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * {@link BitmapFactory#decodeResource(Resources, int, android.graphics.BitmapFactory.Options)}, 11511ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * and {@link BitmapFactory#decodeResourceStream} 11611ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * will fill in the density associated with the resource. The other 11711ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * functions will leave it as-is and no density will be applied. 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 11911ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @see #inTargetDensity 12011ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @see #inScreenDensity 12111ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @see #inScaled 12211ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @see Bitmap#setDensity(int) 12311ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @see android.util.DisplayMetrics#densityDpi 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int inDensity; 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12811ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * The pixel density of the destination this bitmap will be drawn to. 12911ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * This is used in conjunction with {@link #inDensity} and 13011ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * {@link #inScaled} to determine if and how to scale the bitmap before 13111ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * returning it. 13211ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * 13311ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * <p>If this is 0, 13411ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * {@link BitmapFactory#decodeResource(Resources, int)}, 13511ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * {@link BitmapFactory#decodeResource(Resources, int, android.graphics.BitmapFactory.Options)}, 13611ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * and {@link BitmapFactory#decodeResourceStream} 13711ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * will fill in the density associated the Resources object's 13811ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * DisplayMetrics. The other 13911ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * functions will leave it as-is and no scaling for density will be 14011ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * performed. 14111ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * 14211ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @see #inDensity 14311ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @see #inScreenDensity 14411ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @see #inScaled 14511ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @see android.util.DisplayMetrics#densityDpi 14611ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn */ 14711ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn public int inTargetDensity; 14811ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn 14911ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn /** 15011ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * The pixel density of the actual screen that is being used. This is 15111ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * purely for applications running in density compatibility code, where 15211ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * {@link #inTargetDensity} is actually the density the application 15311ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * sees rather than the real screen density. 15411ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * 15511ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * <p>By setting this, you 15611ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * allow the loading code to avoid scaling a bitmap that is currently 15711ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * in the screen density up/down to the compatibility density. Instead, 15811ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * if {@link #inDensity} is the same as {@link #inScreenDensity}, the 15911ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * bitmap will be left as-is. Anything using the resulting bitmap 16011ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * must also used {@link Bitmap#getScaledWidth(int) 16111ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * Bitmap.getScaledWidth} and {@link Bitmap#getScaledHeight 16211ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * Bitmap.getScaledHeight} to account for any different between the 16311ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * bitmap's density and the target's density. 16411ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * 16511ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * <p>This is never set automatically for the caller by 16611ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * {@link BitmapFactory} itself. It must be explicitly set, since the 16711ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * caller must deal with the resulting bitmap in a density-aware way. 16811ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * 16911ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @see #inDensity 17011ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @see #inTargetDensity 17111ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @see #inScaled 17211ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @see android.util.DisplayMetrics#densityDpi 17311ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn */ 17411ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn public int inScreenDensity; 17511ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn 17611ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn /** 17711ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * When this flag is set, if {@link #inDensity} and 17811ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * {@link #inTargetDensity} are not 0, the 17911ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * bitmap will be scaled to match {@link #inTargetDensity} when loaded, 18011ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * rather than relying on the graphics system scaling it each time it 18111ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * is drawn to a Canvas. 1829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 18311ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * <p>This flag is turned on by default and should be turned off if you need 18411ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * a non-scaled version of the bitmap. Nine-patch bitmaps ignore this 18511ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * flag and are always scaled. 1869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean inScaled; 1889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 190c70e06bbfac0d92ec218a32e35d9d7fa80f23cc9Mike Reed * If this is set to true, then the resulting bitmap will allocate its 191c70e06bbfac0d92ec218a32e35d9d7fa80f23cc9Mike Reed * pixels such that they can be purged if the system needs to reclaim 192c70e06bbfac0d92ec218a32e35d9d7fa80f23cc9Mike Reed * memory. In that instance, when the pixels need to be accessed again 193c70e06bbfac0d92ec218a32e35d9d7fa80f23cc9Mike Reed * (e.g. the bitmap is drawn, getPixels() is called), they will be 194c70e06bbfac0d92ec218a32e35d9d7fa80f23cc9Mike Reed * automatically re-decoded. 195c70e06bbfac0d92ec218a32e35d9d7fa80f23cc9Mike Reed * 196c70e06bbfac0d92ec218a32e35d9d7fa80f23cc9Mike Reed * For the re-decode to happen, the bitmap must have access to the 197c70e06bbfac0d92ec218a32e35d9d7fa80f23cc9Mike Reed * encoded data, either by sharing a reference to the input 198c70e06bbfac0d92ec218a32e35d9d7fa80f23cc9Mike Reed * or by making a copy of it. This distinction is controlled by 199c70e06bbfac0d92ec218a32e35d9d7fa80f23cc9Mike Reed * inInputShareable. If this is true, then the bitmap may keep a shallow 200c70e06bbfac0d92ec218a32e35d9d7fa80f23cc9Mike Reed * reference to the input. If this is false, then the bitmap will 201c70e06bbfac0d92ec218a32e35d9d7fa80f23cc9Mike Reed * explicitly make a copy of the input data, and keep that. Even if 202c70e06bbfac0d92ec218a32e35d9d7fa80f23cc9Mike Reed * sharing is allowed, the implementation may still decide to make a 203c70e06bbfac0d92ec218a32e35d9d7fa80f23cc9Mike Reed * deep copy of the input data. 204c70e06bbfac0d92ec218a32e35d9d7fa80f23cc9Mike Reed */ 205c70e06bbfac0d92ec218a32e35d9d7fa80f23cc9Mike Reed public boolean inPurgeable; 206c70e06bbfac0d92ec218a32e35d9d7fa80f23cc9Mike Reed 207c70e06bbfac0d92ec218a32e35d9d7fa80f23cc9Mike Reed /** 208c70e06bbfac0d92ec218a32e35d9d7fa80f23cc9Mike Reed * This field works in conjuction with inPurgeable. If inPurgeable is 209c70e06bbfac0d92ec218a32e35d9d7fa80f23cc9Mike Reed * false, then this field is ignored. If inPurgeable is true, then this 210c70e06bbfac0d92ec218a32e35d9d7fa80f23cc9Mike Reed * field determines whether the bitmap can share a reference to the 211c70e06bbfac0d92ec218a32e35d9d7fa80f23cc9Mike Reed * input data (inputstream, array, etc.) or if it must make a deep copy. 212c70e06bbfac0d92ec218a32e35d9d7fa80f23cc9Mike Reed */ 213c70e06bbfac0d92ec218a32e35d9d7fa80f23cc9Mike Reed public boolean inInputShareable; 214c70e06bbfac0d92ec218a32e35d9d7fa80f23cc9Mike Reed 215c70e06bbfac0d92ec218a32e35d9d7fa80f23cc9Mike Reed /** 216953f9094a2ec14594fa8501d5f3e2d9e300b1b62Wei-Ta Chen * If inPreferQualityOverSpeed is set to true, the decoder will try to 217953f9094a2ec14594fa8501d5f3e2d9e300b1b62Wei-Ta Chen * decode the reconstructed image to a higher quality even at the 218953f9094a2ec14594fa8501d5f3e2d9e300b1b62Wei-Ta Chen * expense of the decoding speed. Currently the field only affects JPEG 219953f9094a2ec14594fa8501d5f3e2d9e300b1b62Wei-Ta Chen * decode, in the case of which a more accurate, but slightly slower, 220953f9094a2ec14594fa8501d5f3e2d9e300b1b62Wei-Ta Chen * IDCT method will be used instead. 221953f9094a2ec14594fa8501d5f3e2d9e300b1b62Wei-Ta Chen */ 222953f9094a2ec14594fa8501d5f3e2d9e300b1b62Wei-Ta Chen public boolean inPreferQualityOverSpeed; 223953f9094a2ec14594fa8501d5f3e2d9e300b1b62Wei-Ta Chen 224953f9094a2ec14594fa8501d5f3e2d9e300b1b62Wei-Ta Chen /** 2259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The resulting width of the bitmap, set independent of the state of 2269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * inJustDecodeBounds. However, if there is an error trying to decode, 2279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * outWidth will be set to -1. 2289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 229953f9094a2ec14594fa8501d5f3e2d9e300b1b62Wei-Ta Chen 2309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int outWidth; 2319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The resulting height of the bitmap, set independent of the state of 2349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * inJustDecodeBounds. However, if there is an error trying to decode, 2359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * outHeight will be set to -1. 2369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int outHeight; 2389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * If known, this string is set to the mimetype of the decoded image. 2419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * If not know, or there is an error, it is set to null. 2429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public String outMimeType; 244eb949674fd3b83b706f795fc6b16ab1c66250c93Wei-Ta Chen 2459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Temp storage to use for decoding. Suggest 16K or so. 2479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public byte[] inTempStorage; 249eb949674fd3b83b706f795fc6b16ab1c66250c93Wei-Ta Chen 2509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private native void requestCancel(); 2519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Flag to indicate that cancel has been called on this object. This 2549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is useful if there's an intermediary that wants to first decode the 2559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * bounds and then decode the image. In that case the intermediary 2569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * can check, inbetween the bounds decode and the image decode, to see 2579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * if the operation is canceled. 2589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean mCancel; 260eb949674fd3b83b706f795fc6b16ab1c66250c93Wei-Ta Chen 2619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This can be called from another thread while this options object is 2639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * inside a decode... call. Calling this will notify the decoder that 2649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * it should cancel its operation. This is not guaranteed to cancel 2659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the decode, but if it does, the decoder... operation will return 2669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * null, or if inJustDecodeBounds is true, will set outWidth/outHeight 2679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to -1 2689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void requestCancelDecode() { 2709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCancel = true; 2719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestCancel(); 2729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Decode a file path into a bitmap. If the specified file name is null, 2779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * or cannot be decoded into a bitmap, the function returns null. 2789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 2799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param pathName complete path name for the file to be decoded. 2809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param opts null-ok; Options that control downsampling and whether the 2819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * image should be completely decoded, or just is size returned. 2829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The decoded bitmap, or null if the image data could not be 2839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * decoded, or, if opts is non-null, if opts requested only the 2849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * size be returned (in opts.outWidth and opts.outHeight) 2859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static Bitmap decodeFile(String pathName, Options opts) { 2879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Bitmap bm = null; 2889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project InputStream stream = null; 2899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project try { 2909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project stream = new FileInputStream(pathName); 2919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project bm = decodeStream(stream, null, opts); 2929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } catch (Exception e) { 2939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* do nothing. 2949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project If the exception happened on open, bm will be null. 2959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } finally { 2979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (stream != null) { 2989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project try { 2999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project stream.close(); 3009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } catch (IOException e) { 3019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // do nothing here 3029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return bm; 3069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Decode a file path into a bitmap. If the specified file name is null, 3109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * or cannot be decoded into a bitmap, the function returns null. 3119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 3129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param pathName complete path name for the file to be decoded. 3139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the resulting decoded bitmap, or null if it could not be decoded. 3149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static Bitmap decodeFile(String pathName) { 3169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return decodeFile(pathName, null); 3179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Decode a new Bitmap from an InputStream. This InputStream was obtained from 3219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * resources, which we pass to be able to scale the bitmap accordingly. 3229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 32311ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn public static Bitmap decodeResourceStream(Resources res, TypedValue value, 32411ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn InputStream is, Rect pad, Options opts) { 3259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (opts == null) { 3279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project opts = new Options(); 3289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33011ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn if (opts.inDensity == 0 && value != null) { 331a53b828635fce8b6b2d3e3377d74d72070056623Dianne Hackborn final int density = value.density; 33211ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn if (density == TypedValue.DENSITY_DEFAULT) { 33311ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn opts.inDensity = DisplayMetrics.DENSITY_DEFAULT; 33411ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn } else if (density != TypedValue.DENSITY_NONE) { 33511ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn opts.inDensity = density; 3369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33811ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn 33911ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn if (opts.inTargetDensity == 0 && res != null) { 34011ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn opts.inTargetDensity = res.getDisplayMetrics().densityDpi; 34111ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn } 34211ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn 34311ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn return decodeStream(is, pad, opts); 3449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 34711ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * Synonym for opening the given resource and calling 34811ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * {@link #decodeResourceStream}. 3499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 3509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param res The resources object containing the image data 3519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param id The resource id of the image data 3529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param opts null-ok; Options that control downsampling and whether the 3539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * image should be completely decoded, or just is size returned. 3549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The decoded bitmap, or null if the image data could not be 3559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * decoded, or, if opts is non-null, if opts requested only the 3569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * size be returned (in opts.outWidth and opts.outHeight) 3579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static Bitmap decodeResource(Resources res, int id, Options opts) { 3599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Bitmap bm = null; 360650a3eb7d621dc8e81573142a4498bbd07bcde27Romain Guy InputStream is = null; 361650a3eb7d621dc8e81573142a4498bbd07bcde27Romain Guy 3629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project try { 3639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final TypedValue value = new TypedValue(); 364650a3eb7d621dc8e81573142a4498bbd07bcde27Romain Guy is = res.openRawResource(id, value); 3659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36611ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn bm = decodeResourceStream(res, value, is, null, opts); 367650a3eb7d621dc8e81573142a4498bbd07bcde27Romain Guy } catch (Exception e) { 3689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* do nothing. 3699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project If the exception happened on open, bm will be null. 3709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project If it happened on close, bm is still valid. 3719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 372650a3eb7d621dc8e81573142a4498bbd07bcde27Romain Guy } finally { 373650a3eb7d621dc8e81573142a4498bbd07bcde27Romain Guy try { 374650a3eb7d621dc8e81573142a4498bbd07bcde27Romain Guy if (is != null) is.close(); 375650a3eb7d621dc8e81573142a4498bbd07bcde27Romain Guy } catch (IOException e) { 376650a3eb7d621dc8e81573142a4498bbd07bcde27Romain Guy // Ignore 377650a3eb7d621dc8e81573142a4498bbd07bcde27Romain Guy } 3789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 379650a3eb7d621dc8e81573142a4498bbd07bcde27Romain Guy 380decc8cd41eca3770c8f5ee13d81b9cd5f0c25ccdChet Haase if (bm == null && opts != null && opts.inBitmap != null) { 381decc8cd41eca3770c8f5ee13d81b9cd5f0c25ccdChet Haase throw new IllegalArgumentException("Problem decoding into existing bitmap"); 382decc8cd41eca3770c8f5ee13d81b9cd5f0c25ccdChet Haase } 383decc8cd41eca3770c8f5ee13d81b9cd5f0c25ccdChet Haase 3849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return bm; 3859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 386eb949674fd3b83b706f795fc6b16ab1c66250c93Wei-Ta Chen 3879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 38811ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * Synonym for {@link #decodeResource(Resources, int, android.graphics.BitmapFactory.Options)} 38911ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * will null Options. 3909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 3919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param res The resources object containing the image data 3929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param id The resource id of the image data 3939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The decoded bitmap, or null if the image could not be decode. 3949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static Bitmap decodeResource(Resources res, int id) { 3969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return decodeResource(res, id, null); 3979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Decode an immutable bitmap from the specified byte array. 4019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param data byte array of compressed image data 4039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param offset offset into imageData for where the decoder should begin 4049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * parsing. 4059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param length the number of bytes, beginning at offset, to parse 4069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param opts null-ok; Options that control downsampling and whether the 4079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * image should be completely decoded, or just is size returned. 4089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The decoded bitmap, or null if the image data could not be 4099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * decoded, or, if opts is non-null, if opts requested only the 4109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * size be returned (in opts.outWidth and opts.outHeight) 4119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static Bitmap decodeByteArray(byte[] data, int offset, int length, Options opts) { 4139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((offset | length) < 0 || data.length < offset + length) { 4149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new ArrayIndexOutOfBoundsException(); 4159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 416decc8cd41eca3770c8f5ee13d81b9cd5f0c25ccdChet Haase Bitmap bm = nativeDecodeByteArray(data, offset, length, opts); 417decc8cd41eca3770c8f5ee13d81b9cd5f0c25ccdChet Haase if (bm == null && opts != null && opts.inBitmap != null) { 418decc8cd41eca3770c8f5ee13d81b9cd5f0c25ccdChet Haase throw new IllegalArgumentException("Problem decoding into existing bitmap"); 419decc8cd41eca3770c8f5ee13d81b9cd5f0c25ccdChet Haase } 420decc8cd41eca3770c8f5ee13d81b9cd5f0c25ccdChet Haase return bm; 4219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 422eb949674fd3b83b706f795fc6b16ab1c66250c93Wei-Ta Chen 4239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Decode an immutable bitmap from the specified byte array. 4259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param data byte array of compressed image data 4279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param offset offset into imageData for where the decoder should begin 4289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * parsing. 4299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param length the number of bytes, beginning at offset, to parse 4309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The decoded bitmap, or null if the image could not be decode. 4319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static Bitmap decodeByteArray(byte[] data, int offset, int length) { 4339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return decodeByteArray(data, offset, length, null); 4349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 435eb949674fd3b83b706f795fc6b16ab1c66250c93Wei-Ta Chen 4369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Decode an input stream into a bitmap. If the input stream is null, or 4389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * cannot be used to decode a bitmap, the function returns null. 4399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The stream's position will be where ever it was after the encoded data 4409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * was read. 441eb949674fd3b83b706f795fc6b16ab1c66250c93Wei-Ta Chen * 4429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param is The input stream that holds the raw data to be decoded into a 4439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * bitmap. 4449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param outPadding If not null, return the padding rect for the bitmap if 4459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * it exists, otherwise set padding to [-1,-1,-1,-1]. If 4469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * no bitmap is returned (null) then padding is 4479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * unchanged. 4489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param opts null-ok; Options that control downsampling and whether the 4499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * image should be completely decoded, or just is size returned. 4509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The decoded bitmap, or null if the image data could not be 4519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * decoded, or, if opts is non-null, if opts requested only the 4529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * size be returned (in opts.outWidth and opts.outHeight) 4539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static Bitmap decodeStream(InputStream is, Rect outPadding, Options opts) { 4559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // we don't throw in this case, thus allowing the caller to only check 4569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the cache, and not force the image to be decoded. 4579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (is == null) { 4589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 4599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 460eb949674fd3b83b706f795fc6b16ab1c66250c93Wei-Ta Chen 4619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // we need mark/reset to work properly 4629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!is.markSupported()) { 4649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project is = new BufferedInputStream(is, 16 * 1024); 4659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // so we can call reset() if a given codec gives up after reading up to 4689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // this many bytes. FIXME: need to find out from the codecs what this 4699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // value should be. 4709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project is.mark(1024); 4719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Bitmap bm; 4739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (is instanceof AssetManager.AssetInputStream) { 4759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project bm = nativeDecodeAsset(((AssetManager.AssetInputStream) is).getAssetInt(), 4769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project outPadding, opts); 4779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 4789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // pass some temp storage down to the native code. 1024 is made up, 4799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // but should be large enough to avoid too many small calls back 4809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // into is.read(...) This number is not related to the value passed 4819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // to mark(...) above. 4829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project byte [] tempStorage = null; 483207b3ab604bcbe47fa55f26f358cde60cf8a784dRomain Guy if (opts != null) tempStorage = opts.inTempStorage; 484207b3ab604bcbe47fa55f26f358cde60cf8a784dRomain Guy if (tempStorage == null) tempStorage = new byte[16 * 1024]; 4859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project bm = nativeDecodeStream(is, tempStorage, outPadding, opts); 4869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 487decc8cd41eca3770c8f5ee13d81b9cd5f0c25ccdChet Haase if (bm == null && opts != null && opts.inBitmap != null) { 488decc8cd41eca3770c8f5ee13d81b9cd5f0c25ccdChet Haase throw new IllegalArgumentException("Problem decoding into existing bitmap"); 489decc8cd41eca3770c8f5ee13d81b9cd5f0c25ccdChet Haase } 4909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4917341d7a104b47996445d069a695e155a07184606Dianne Hackborn return finishDecode(bm, outPadding, opts); 4927341d7a104b47996445d069a695e155a07184606Dianne Hackborn } 4937341d7a104b47996445d069a695e155a07184606Dianne Hackborn 4947341d7a104b47996445d069a695e155a07184606Dianne Hackborn private static Bitmap finishDecode(Bitmap bm, Rect outPadding, Options opts) { 49511ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn if (bm == null || opts == null) { 49611ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn return bm; 49711ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn } 49811ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn 49911ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn final int density = opts.inDensity; 50011ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn if (density == 0) { 50111ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn return bm; 50211ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn } 50311ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn 50411ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn bm.setDensity(density); 50511ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn final int targetDensity = opts.inTargetDensity; 506207b3ab604bcbe47fa55f26f358cde60cf8a784dRomain Guy if (targetDensity == 0 || density == targetDensity || density == opts.inScreenDensity) { 50711ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn return bm; 50811ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn } 50911ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn 51011ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn byte[] np = bm.getNinePatchChunk(); 51111ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn final boolean isNinePatch = np != null && NinePatch.isNinePatchChunk(np); 51211ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn if (opts.inScaled || isNinePatch) { 51311ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn float scale = targetDensity / (float)density; 51411ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn // TODO: This is very inefficient and should be done in native by Skia 51511ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn final Bitmap oldBitmap = bm; 51611ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn bm = Bitmap.createScaledBitmap(oldBitmap, (int) (bm.getWidth() * scale + 0.5f), 51711ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn (int) (bm.getHeight() * scale + 0.5f), true); 51811ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn oldBitmap.recycle(); 51911ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn 52011ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn if (isNinePatch) { 52111ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn np = nativeScaleNinePatch(np, scale, outPadding); 52211ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn bm.setNinePatchChunk(np); 52311ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn } 52411ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn bm.setDensity(targetDensity); 52511ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn } 52611ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn 5279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return bm; 5289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5297341d7a104b47996445d069a695e155a07184606Dianne Hackborn 5309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Decode an input stream into a bitmap. If the input stream is null, or 5329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * cannot be used to decode a bitmap, the function returns null. 5339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The stream's position will be where ever it was after the encoded data 5349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * was read. 535eb949674fd3b83b706f795fc6b16ab1c66250c93Wei-Ta Chen * 5369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param is The input stream that holds the raw data to be decoded into a 5379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * bitmap. 53803f0292744094ec107ffce71301c394503a31dedGilles Debunne * @return The decoded bitmap, or null if the image data could not be decoded. 5399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static Bitmap decodeStream(InputStream is) { 5419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return decodeStream(is, null, null); 5429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Decode a bitmap from the file descriptor. If the bitmap cannot be decoded 5469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * return null. The position within the descriptor will not be changed when 5477341d7a104b47996445d069a695e155a07184606Dianne Hackborn * this returns, so the descriptor can be used again as-is. 5489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 5499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param fd The file descriptor containing the bitmap data to decode 5509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param outPadding If not null, return the padding rect for the bitmap if 5519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * it exists, otherwise set padding to [-1,-1,-1,-1]. If 5529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * no bitmap is returned (null) then padding is 5539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * unchanged. 5549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param opts null-ok; Options that control downsampling and whether the 5559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * image should be completely decoded, or just is size returned. 5569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the decoded bitmap, or null 5579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static Bitmap decodeFileDescriptor(FileDescriptor fd, Rect outPadding, Options opts) { 559a9d0d47076ecf2d1739bb3534abc9deead8ebebdOwen Lin if (nativeIsSeekable(fd)) { 560a9d0d47076ecf2d1739bb3534abc9deead8ebebdOwen Lin Bitmap bm = nativeDecodeFileDescriptor(fd, outPadding, opts); 561a9d0d47076ecf2d1739bb3534abc9deead8ebebdOwen Lin if (bm == null && opts != null && opts.inBitmap != null) { 562a9d0d47076ecf2d1739bb3534abc9deead8ebebdOwen Lin throw new IllegalArgumentException("Problem decoding into existing bitmap"); 563a9d0d47076ecf2d1739bb3534abc9deead8ebebdOwen Lin } 564a9d0d47076ecf2d1739bb3534abc9deead8ebebdOwen Lin return finishDecode(bm, outPadding, opts); 565a9d0d47076ecf2d1739bb3534abc9deead8ebebdOwen Lin } else { 566a9d0d47076ecf2d1739bb3534abc9deead8ebebdOwen Lin FileInputStream fis = new FileInputStream(fd); 567a9d0d47076ecf2d1739bb3534abc9deead8ebebdOwen Lin try { 568a9d0d47076ecf2d1739bb3534abc9deead8ebebdOwen Lin return decodeStream(fis, outPadding, opts); 569a9d0d47076ecf2d1739bb3534abc9deead8ebebdOwen Lin } finally { 570a9d0d47076ecf2d1739bb3534abc9deead8ebebdOwen Lin try { 571a9d0d47076ecf2d1739bb3534abc9deead8ebebdOwen Lin fis.close(); 572a9d0d47076ecf2d1739bb3534abc9deead8ebebdOwen Lin } catch (Throwable t) {/* ignore */} 573a9d0d47076ecf2d1739bb3534abc9deead8ebebdOwen Lin } 574decc8cd41eca3770c8f5ee13d81b9cd5f0c25ccdChet Haase } 5759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 576eb949674fd3b83b706f795fc6b16ab1c66250c93Wei-Ta Chen 5779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Decode a bitmap from the file descriptor. If the bitmap cannot be decoded 5799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * return null. The position within the descriptor will not be changed when 5809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this returns, so the descriptor can be used again as is. 5819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 5829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param fd The file descriptor containing the bitmap data to decode 5839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the decoded bitmap, or null 5849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static Bitmap decodeFileDescriptor(FileDescriptor fd) { 586984b5df3830fe26a45bee39c7e8dd86714c99ed0Marco Nelissen return decodeFileDescriptor(fd, null, null); 5879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 588eb949674fd3b83b706f795fc6b16ab1c66250c93Wei-Ta Chen 589ab4a0c164b5a44d5bfd37069cfe499db31e7620cMike Reed /** 590ab4a0c164b5a44d5bfd37069cfe499db31e7620cMike Reed * Set the default config used for decoding bitmaps. This config is 591ab4a0c164b5a44d5bfd37069cfe499db31e7620cMike Reed * presented to the codec if the caller did not specify a preferred config 592ab4a0c164b5a44d5bfd37069cfe499db31e7620cMike Reed * in their call to decode... 593ab4a0c164b5a44d5bfd37069cfe499db31e7620cMike Reed * 594ab4a0c164b5a44d5bfd37069cfe499db31e7620cMike Reed * The default value is chosen by the system to best match the device's 595ab4a0c164b5a44d5bfd37069cfe499db31e7620cMike Reed * screen and memory constraints. 596ab4a0c164b5a44d5bfd37069cfe499db31e7620cMike Reed * 597ab4a0c164b5a44d5bfd37069cfe499db31e7620cMike Reed * @param config The preferred config for decoding bitmaps. If null, then 598ab4a0c164b5a44d5bfd37069cfe499db31e7620cMike Reed * a suitable default is chosen by the system. 599ab4a0c164b5a44d5bfd37069cfe499db31e7620cMike Reed * 600ab4a0c164b5a44d5bfd37069cfe499db31e7620cMike Reed * @hide - only called by the browser at the moment, but should be stable 601ab4a0c164b5a44d5bfd37069cfe499db31e7620cMike Reed * enough to expose if needed 602ab4a0c164b5a44d5bfd37069cfe499db31e7620cMike Reed */ 603ab4a0c164b5a44d5bfd37069cfe499db31e7620cMike Reed public static void setDefaultConfig(Bitmap.Config config) { 604ab4a0c164b5a44d5bfd37069cfe499db31e7620cMike Reed if (config == null) { 605ab4a0c164b5a44d5bfd37069cfe499db31e7620cMike Reed // pick this for now, as historically it was our default. 606ab4a0c164b5a44d5bfd37069cfe499db31e7620cMike Reed // However, if we have a smarter algorithm, we can change this. 607ab4a0c164b5a44d5bfd37069cfe499db31e7620cMike Reed config = Bitmap.Config.RGB_565; 608ab4a0c164b5a44d5bfd37069cfe499db31e7620cMike Reed } 609ab4a0c164b5a44d5bfd37069cfe499db31e7620cMike Reed nativeSetDefaultConfig(config.nativeInt); 610ab4a0c164b5a44d5bfd37069cfe499db31e7620cMike Reed } 611ab4a0c164b5a44d5bfd37069cfe499db31e7620cMike Reed 612ab4a0c164b5a44d5bfd37069cfe499db31e7620cMike Reed private static native void nativeSetDefaultConfig(int nativeConfig); 6139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native Bitmap nativeDecodeStream(InputStream is, byte[] storage, 6149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect padding, Options opts); 6159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native Bitmap nativeDecodeFileDescriptor(FileDescriptor fd, 6169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect padding, Options opts); 6179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native Bitmap nativeDecodeAsset(int asset, Rect padding, Options opts); 6189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native Bitmap nativeDecodeByteArray(byte[] data, int offset, 6199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int length, Options opts); 6209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native byte[] nativeScaleNinePatch(byte[] chunk, float scale, Rect pad); 621a9d0d47076ecf2d1739bb3534abc9deead8ebebdOwen Lin private static native boolean nativeIsSeekable(FileDescriptor fd); 6229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 623