19066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/* 29066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Copyright (C) 2006 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 19c054966b719c8a7255f7cf4120cca5050acb68bdAlan Viveretteimport android.annotation.NonNull; 209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Parcel; 218cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chenimport android.os.Parcelable; 220df3bd5594bbbbfbf6058ecb31e9b94a1cd22f7dJohn Reckimport android.os.Trace; 232784ff0af88128f66ae690b73d48fb7e4a211e68Dianne Hackbornimport android.util.DisplayMetrics; 244cd7dbc90f93893f521dce32d8cd25c02a185a24Chris Craikimport dalvik.system.VMRuntime; 25ec4a50428d5f26a22df3edaf7e5b08f41d5cb54bAmith Yamasani 268cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chenimport java.io.OutputStream; 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.nio.Buffer; 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.nio.ByteBuffer; 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.nio.IntBuffer; 308cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chenimport java.nio.ShortBuffer; 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic final class Bitmap implements Parcelable { 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that the bitmap was created for an unknown pixel density. 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 3611ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @see Bitmap#getDensity() 3711ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @see Bitmap#setDensity(int) 389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3911ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn public static final int DENSITY_NONE = 0; 4011ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn 41ce0537b80087a6225273040a987414b1dd081aa0Romain Guy /** 42ce0537b80087a6225273040a987414b1dd081aa0Romain Guy * Note: mNativeBitmap is used by FaceDetector_jni.cpp 43ce0537b80087a6225273040a987414b1dd081aa0Romain Guy * Don't change/rename without updating FaceDetector_jni.cpp 44ce0537b80087a6225273040a987414b1dd081aa0Romain Guy * 45ce0537b80087a6225273040a987414b1dd081aa0Romain Guy * @hide 46ce0537b80087a6225273040a987414b1dd081aa0Romain Guy */ 4736bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat public final long mNativeBitmap; 488cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 49e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy /** 50e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy * Backing buffer for the Bitmap. 51e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy */ 52f29d5a5b211786248d0557157c304c5fff428bd4Derek Sollenberger private byte[] mBuffer; 53e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy 542361098da3b9d9c3eeed410dc72ba62c0e9177cfRomain Guy @SuppressWarnings({"FieldCanBeLocal", "UnusedDeclaration"}) // Keep to finalize native resources 55e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy private final BitmapFinalizer mFinalizer; 56e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy 579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private final boolean mIsMutable; 581abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik 591abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik /** 6057ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III * Represents whether the Bitmap's content is requested to be pre-multiplied. 611abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * Note that isPremultiplied() does not directly return this value, because 6257ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III * isPremultiplied() may never return true for a 565 Bitmap or a bitmap 6357ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III * without alpha. 641abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * 651abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * setPremultiplied() does directly set the value so that setConfig() and 661abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * setPremultiplied() aren't order dependent, despite being setters. 6757ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III * 6857ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III * The native bitmap's premultiplication state is kept up to date by 6957ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III * pushing down this preference for every config change. 701abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik */ 7157ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III private boolean mRequestPremultiplied; 728790be6de3644e332ec6a17c855da89ffc13a9bfLeon Scroggins III 7347cd8e921db73e894f94ec4729ade90da50996f5Chris Craik private byte[] mNinePatchChunk; // may be null 7447cd8e921db73e894f94ec4729ade90da50996f5Chris Craik private NinePatch.InsetStruct mNinePatchInsets; // may be null 751abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik private int mWidth; 761abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik private int mHeight; 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mRecycled; 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7911ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn // Package-scoped for fast access. 80dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn int mDensity = getDefaultDensity(); 819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8211ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn private static volatile Matrix sScaleMatrix; 839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8496e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn private static volatile int sDefaultDensity = -1; 8502890fd0f98b3b8d98baf0bda1ea906afd723d8bRomain Guy 8696e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn /** 8796e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * For backwards compatibility, allows the app layer to change the default 8896e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * density when running old apps. 8996e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * @hide 9096e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn */ 9196e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn public static void setDefaultDensity(int density) { 9296e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn sDefaultDensity = density; 9396e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn } 943849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy 953849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy static int getDefaultDensity() { 9696e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn if (sDefaultDensity >= 0) { 9796e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn return sDefaultDensity; 9896e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn } 991f58497e7dbab1b16e97c73b65559b852d0c2803Romain Guy //noinspection deprecation 10096e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn sDefaultDensity = DisplayMetrics.DENSITY_DEVICE; 10196e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn return sDefaultDensity; 10296e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn } 103dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1059f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik * Private constructor that must received an already allocated native bitmap 1069f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik * int (pointer). 107ec4a50428d5f26a22df3edaf7e5b08f41d5cb54bAmith Yamasani */ 1089f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik @SuppressWarnings({"UnusedDeclaration"}) // called from JNI 10936bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat Bitmap(long nativeBitmap, byte[] buffer, int width, int height, int density, 11057ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III boolean isMutable, boolean requestPremultiplied, 11147cd8e921db73e894f94ec4729ade90da50996f5Chris Craik byte[] ninePatchChunk, NinePatch.InsetStruct ninePatchInsets) { 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (nativeBitmap == 0) { 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException("internal error: native bitmap is 0"); 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1158cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 1161abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik mWidth = width; 1171abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik mHeight = height; 1181abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik mIsMutable = isMutable; 11957ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III mRequestPremultiplied = requestPremultiplied; 120e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy mBuffer = buffer; 1214cd7dbc90f93893f521dce32d8cd25c02a185a24Chris Craik 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // we delete this in our finalizer 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNativeBitmap = nativeBitmap; 124e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNinePatchChunk = ninePatchChunk; 12647cd8e921db73e894f94ec4729ade90da50996f5Chris Craik mNinePatchInsets = ninePatchInsets; 127de0dfb7b65a02d4dd74c271b558adee0973fc267Dianne Hackborn if (density >= 0) { 128de0dfb7b65a02d4dd74c271b558adee0973fc267Dianne Hackborn mDensity = density; 129de0dfb7b65a02d4dd74c271b558adee0973fc267Dianne Hackborn } 1304cd7dbc90f93893f521dce32d8cd25c02a185a24Chris Craik 1314cd7dbc90f93893f521dce32d8cd25c02a185a24Chris Craik int nativeAllocationByteCount = buffer == null ? getByteCount() : 0; 1324cd7dbc90f93893f521dce32d8cd25c02a185a24Chris Craik mFinalizer = new BitmapFinalizer(nativeBitmap, nativeAllocationByteCount); 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1361abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * Native bitmap has been reconfigured, so set premult and cached 1371abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * width/height values 1389f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik */ 1399f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik @SuppressWarnings({"UnusedDeclaration"}) // called from JNI 14057ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III void reinit(int width, int height, boolean requestPremultiplied) { 1411abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik mWidth = width; 1421abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik mHeight = height; 14357ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III mRequestPremultiplied = requestPremultiplied; 1449f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik } 1459f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik 1469f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik /** 14711ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * <p>Returns the density for this bitmap.</p> 1489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14996e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * <p>The default density is the same density as the current display, 15096e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * unless the current application does not support different screen 15196e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * densities in which case it is 15296e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * {@link android.util.DisplayMetrics#DENSITY_DEFAULT}. Note that 15396e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * compatibility mode is determined by the application that was initially 15496e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * loaded into a process -- applications that share the same process should 15596e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * all have the same compatibility, or ensure they explicitly set the 15696e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * density of their bitmaps appropriately.</p> 1579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15896e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * @return A scaling factor of the default density or {@link #DENSITY_NONE} 1599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * if the scaling factor is unknown. 1609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16111ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @see #setDensity(int) 162a53b828635fce8b6b2d3e3377d74d72070056623Dianne Hackborn * @see android.util.DisplayMetrics#DENSITY_DEFAULT 16311ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @see android.util.DisplayMetrics#densityDpi 16411ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @see #DENSITY_NONE 1659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16611ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn public int getDensity() { 16711ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn return mDensity; 1689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 17111ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * <p>Specifies the density for this bitmap. When the bitmap is 17211ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * drawn to a Canvas that also has a density, it will be scaled 17311ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * appropriately.</p> 1749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 17511ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @param density The density scaling factor to use with this bitmap or 17611ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * {@link #DENSITY_NONE} if the density is unknown. 1779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 17811ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @see #getDensity() 179a53b828635fce8b6b2d3e3377d74d72070056623Dianne Hackborn * @see android.util.DisplayMetrics#DENSITY_DEFAULT 18011ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @see android.util.DisplayMetrics#densityDpi 18111ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @see #DENSITY_NONE 1829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18311ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn public void setDensity(int density) { 18411ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn mDensity = density; 1859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 186c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik 187c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik /** 188c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * <p>Modifies the bitmap to have a specified width, height, and {@link 189c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * Config}, without affecting the underlying allocation backing the bitmap. 190c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * Bitmap pixel data is not re-initialized for the new configuration.</p> 191c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * 192c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * <p>This method can be used to avoid allocating a new bitmap, instead 193c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * reusing an existing bitmap's allocation for a new configuration of equal 194c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * or lesser size. If the Bitmap's allocation isn't large enough to support 195c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * the new configuration, an IllegalArgumentException will be thrown and the 196c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * bitmap will not be modified.</p> 197c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * 198c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * <p>The result of {@link #getByteCount()} will reflect the new configuration, 199c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * while {@link #getAllocationByteCount()} will reflect that of the initial 200c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * configuration.</p> 201c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * 20217a8bfc38a565ae96f43d36b223779be840bb50cLeon Scroggins III * <p>Note: This may change this result of hasAlpha(). When converting to 565, 20317a8bfc38a565ae96f43d36b223779be840bb50cLeon Scroggins III * the new bitmap will always be considered opaque. When converting from 565, 20417a8bfc38a565ae96f43d36b223779be840bb50cLeon Scroggins III * the new bitmap will be considered non-opaque, and will respect the value 20517a8bfc38a565ae96f43d36b223779be840bb50cLeon Scroggins III * set by setPremultiplied().</p> 20617a8bfc38a565ae96f43d36b223779be840bb50cLeon Scroggins III * 207c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * <p>WARNING: This method should NOT be called on a bitmap currently used 208c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * by the view system. It does not make guarantees about how the underlying 209c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * pixel buffer is remapped to the new config, just that the allocation is 210c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * reused. Additionally, the view system does not account for bitmap 211c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * properties being modifying during use, e.g. while attached to 212c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * drawables.</p> 213c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * 214c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * @see #setWidth(int) 215c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * @see #setHeight(int) 216c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * @see #setConfig(Config) 217c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik */ 218c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik public void reconfigure(int width, int height, Config config) { 219c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik checkRecycled("Can't call reconfigure() on a recycled bitmap"); 220c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik if (width <= 0 || height <= 0) { 221c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik throw new IllegalArgumentException("width and height must be > 0"); 222c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik } 223c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik if (!isMutable()) { 2249c2cde0583d02ba7551877dbe7a5ecaee6defb56Chris Craik throw new IllegalStateException("only mutable bitmaps may be reconfigured"); 225c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik } 226c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik if (mBuffer == null) { 2271abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik throw new IllegalStateException("native-backed bitmaps may not be reconfigured"); 228c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik } 229c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik 23017a8bfc38a565ae96f43d36b223779be840bb50cLeon Scroggins III nativeReconfigure(mNativeBitmap, width, height, config.nativeInt, mBuffer.length, 23157ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III mRequestPremultiplied); 232c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik mWidth = width; 233c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik mHeight = height; 234c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik } 235c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik 236c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik /** 237c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * <p>Convenience method for calling {@link #reconfigure(int, int, Config)} 238c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * with the current height and config.</p> 239c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * 240c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * <p>WARNING: this method should not be used on bitmaps currently used by 241c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * the view system, see {@link #reconfigure(int, int, Config)} for more 242c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * details.</p> 243c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * 244c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * @see #reconfigure(int, int, Config) 245c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * @see #setHeight(int) 246c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * @see #setConfig(Config) 247c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik */ 248c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik public void setWidth(int width) { 249c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik reconfigure(width, getHeight(), getConfig()); 250c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik } 251c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik 252c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik /** 253c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * <p>Convenience method for calling {@link #reconfigure(int, int, Config)} 254c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * with the current width and config.</p> 255c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * 256c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * <p>WARNING: this method should not be used on bitmaps currently used by 257c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * the view system, see {@link #reconfigure(int, int, Config)} for more 258c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * details.</p> 259c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * 260c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * @see #reconfigure(int, int, Config) 261c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * @see #setWidth(int) 262c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * @see #setConfig(Config) 263c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik */ 264c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik public void setHeight(int height) { 265c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik reconfigure(getWidth(), height, getConfig()); 266c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik } 267c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik 268c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik /** 269c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * <p>Convenience method for calling {@link #reconfigure(int, int, Config)} 270c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * with the current height and width.</p> 271c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * 272c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * <p>WARNING: this method should not be used on bitmaps currently used by 273c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * the view system, see {@link #reconfigure(int, int, Config)} for more 274c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * details.</p> 275c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * 276c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * @see #reconfigure(int, int, Config) 277c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * @see #setWidth(int) 278c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * @see #setHeight(int) 279c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik */ 280c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik public void setConfig(Config config) { 281c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik reconfigure(getWidth(), getHeight(), config); 282c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik } 283c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik 2849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the nine patch chunk. 2869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 2879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param chunk The definition of the nine patch 2889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 2899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @hide 2909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setNinePatchChunk(byte[] chunk) { 2929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNinePatchChunk = chunk; 2939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2948cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 2959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 296a383b3f646cbc1fd870f2694d4fac24340834916Patrick Dubroy * Free the native object associated with this bitmap, and clear the 297a383b3f646cbc1fd870f2694d4fac24340834916Patrick Dubroy * reference to the pixel data. This will not free the pixel data synchronously; 298a383b3f646cbc1fd870f2694d4fac24340834916Patrick Dubroy * it simply allows it to be garbage collected if there are no other references. 299a383b3f646cbc1fd870f2694d4fac24340834916Patrick Dubroy * The bitmap is marked as "dead", meaning it will throw an exception if 300a383b3f646cbc1fd870f2694d4fac24340834916Patrick Dubroy * getPixels() or setPixels() is called, and will draw nothing. This operation 301a383b3f646cbc1fd870f2694d4fac24340834916Patrick Dubroy * cannot be reversed, so it should only be called if you are sure there are no 3029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * further uses for the bitmap. This is an advanced call, and normally need 3039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * not be called, since the normal GC process will free up this memory when 3049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * there are no more references to this bitmap. 3059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void recycle() { 3074018eb376383a9bbe2aa75a95cc6917ca72aa0b7John Reck if (!mRecycled && mFinalizer.mNativeBitmap != 0) { 308547e66531d521eb1eadac87edb0f79f8c2f1bbe0Chet Haase if (nativeRecycle(mNativeBitmap)) { 309547e66531d521eb1eadac87edb0f79f8c2f1bbe0Chet Haase // return value indicates whether native pixel object was actually recycled. 310547e66531d521eb1eadac87edb0f79f8c2f1bbe0Chet Haase // false indicates that it is still in use at the native level and these 311547e66531d521eb1eadac87edb0f79f8c2f1bbe0Chet Haase // objects should not be collected now. They will be collected later when the 312547e66531d521eb1eadac87edb0f79f8c2f1bbe0Chet Haase // Bitmap itself is collected. 313547e66531d521eb1eadac87edb0f79f8c2f1bbe0Chet Haase mBuffer = null; 314547e66531d521eb1eadac87edb0f79f8c2f1bbe0Chet Haase mNinePatchChunk = null; 315547e66531d521eb1eadac87edb0f79f8c2f1bbe0Chet Haase } 3169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycled = true; 3179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns true if this bitmap has been recycled. If so, then it is an error 3229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to try to access its pixels, and the bitmap will not draw. 3239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 3249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the bitmap has been recycled 3259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final boolean isRecycled() { 3279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mRecycled; 3289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3298cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 3309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3310bbae0836426ba2704e38e7f90a9d0ca502ab71dRomain Guy * Returns the generation ID of this bitmap. The generation ID changes 3320bbae0836426ba2704e38e7f90a9d0ca502ab71dRomain Guy * whenever the bitmap is modified. This can be used as an efficient way to 3330bbae0836426ba2704e38e7f90a9d0ca502ab71dRomain Guy * check if a bitmap has changed. 3340bbae0836426ba2704e38e7f90a9d0ca502ab71dRomain Guy * 3350bbae0836426ba2704e38e7f90a9d0ca502ab71dRomain Guy * @return The current generation ID for this bitmap. 3360bbae0836426ba2704e38e7f90a9d0ca502ab71dRomain Guy */ 3370bbae0836426ba2704e38e7f90a9d0ca502ab71dRomain Guy public int getGenerationId() { 3380bbae0836426ba2704e38e7f90a9d0ca502ab71dRomain Guy return nativeGenerationId(mNativeBitmap); 3390bbae0836426ba2704e38e7f90a9d0ca502ab71dRomain Guy } 3400bbae0836426ba2704e38e7f90a9d0ca502ab71dRomain Guy 3410bbae0836426ba2704e38e7f90a9d0ca502ab71dRomain Guy /** 3429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This is called by methods that want to throw an exception if the bitmap 3439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * has already been recycled. 3449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void checkRecycled(String errorMessage) { 3469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mRecycled) { 3479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalStateException(errorMessage); 3489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3508cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 3519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Common code for checking that x and y are >= 0 3539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 3549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x x coordinate to ensure is >= 0 3559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y y coordinate to ensure is >= 0 3569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static void checkXYSign(int x, int y) { 3589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (x < 0) { 3599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("x must be >= 0"); 3609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (y < 0) { 3629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("y must be >= 0"); 3639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Common code for checking that width and height are > 0 3689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 3699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param width width to ensure is > 0 3709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param height height to ensure is > 0 3719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static void checkWidthHeight(int width, int height) { 3739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (width <= 0) { 3749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("width must be > 0"); 3759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height <= 0) { 3779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("height must be > 0"); 3789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 381676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy /** 382676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * Possible bitmap configurations. A bitmap configuration describes 383676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * how pixels are stored. This affects the quality (color depth) as 384676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * well as the ability to display transparent/translucent colors. 385676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy */ 3869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public enum Config { 3879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // these native values must match up with the enum in SkBitmap.h 388676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy 389676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy /** 390676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * Each pixel is stored as a single translucency (alpha) channel. 391676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * This is very useful to efficiently store masks for instance. 392676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * No color information is stored. 393676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * With this configuration, each pixel requires 1 byte of memory. 394676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy */ 395b644a3b84521e2155a5af985a4d4ed305474e567Derek Sollenberger ALPHA_8 (1), 396676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy 397676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy /** 398676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * Each pixel is stored on 2 bytes and only the RGB channels are 399676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * encoded: red is stored with 5 bits of precision (32 possible 400676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * values), green is stored with 6 bits of precision (64 possible 401676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * values) and blue is stored with 5 bits of precision. 402676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * 403676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * This configuration can produce slight visual artifacts depending 404676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * on the configuration of the source. For instance, without 405676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * dithering, the result might show a greenish tint. To get better 406676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * results dithering should be applied. 407676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * 408676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * This configuration may be useful when using opaque bitmaps 409676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * that do not require high color fidelity. 410676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy */ 411b644a3b84521e2155a5af985a4d4ed305474e567Derek Sollenberger RGB_565 (3), 412676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy 413676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy /** 414676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * Each pixel is stored on 2 bytes. The three RGB color channels 415676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * and the alpha channel (translucency) are stored with a 4 bits 416676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * precision (16 possible values.) 417676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * 418676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * This configuration is mostly useful if the application needs 419676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * to store translucency information but also needs to save 420676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * memory. 421676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * 422676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * It is recommended to use {@link #ARGB_8888} instead of this 423676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * configuration. 42425ba1c86945a441428194d9ebcabbf31be75a45aRomain Guy * 425e8222dddaf2e3da14380101e818d4254899e0c0dChet Haase * Note: as of {@link android.os.Build.VERSION_CODES#KITKAT}, 42625ba1c86945a441428194d9ebcabbf31be75a45aRomain Guy * any bitmap created with this configuration will be created 42725ba1c86945a441428194d9ebcabbf31be75a45aRomain Guy * using {@link #ARGB_8888} instead. 428676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * 429676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * @deprecated Because of the poor quality of this configuration, 430676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * it is advised to use {@link #ARGB_8888} instead. 431676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy */ 432676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy @Deprecated 433b644a3b84521e2155a5af985a4d4ed305474e567Derek Sollenberger ARGB_4444 (4), 434676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy 435676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy /** 436676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * Each pixel is stored on 4 bytes. Each channel (RGB and alpha 437676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * for translucency) is stored with 8 bits of precision (256 438676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * possible values.) 439676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * 440676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * This configuration is very flexible and offers the best 441676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * quality. It should be used whenever possible. 442676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy */ 443b644a3b84521e2155a5af985a4d4ed305474e567Derek Sollenberger ARGB_8888 (5); 4449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 445676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy final int nativeInt; 446676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy 447676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy @SuppressWarnings({"deprecation"}) 448676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy private static Config sConfigs[] = { 449b644a3b84521e2155a5af985a4d4ed305474e567Derek Sollenberger null, ALPHA_8, null, RGB_565, ARGB_4444, ARGB_8888 450676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy }; 451676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy 4529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Config(int ni) { 4539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this.nativeInt = ni; 4549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4558cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 456676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy static Config nativeToConfig(int ni) { 4579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return sConfigs[ni]; 4589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4608cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 4619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4623849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * <p>Copy the bitmap's pixels into the specified buffer (allocated by the 4639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * caller). An exception is thrown if the buffer is not large enough to 4649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * hold all of the pixels (taking into account the number of bytes per 4659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * pixel) or if the Buffer subclass is not one of the support types 4663849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * (ByteBuffer, ShortBuffer, IntBuffer).</p> 4673849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * <p>The content of the bitmap is copied into the buffer as-is. This means 4683849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * that if this bitmap stores its pixels pre-multiplied 4693849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * (see {@link #isPremultiplied()}, the values in the buffer will also be 4703849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * pre-multiplied.</p> 4711f58497e7dbab1b16e97c73b65559b852d0c2803Romain Guy * <p>After this method returns, the current position of the buffer is 4721f58497e7dbab1b16e97c73b65559b852d0c2803Romain Guy * updated: the position is incremented by the number of elements written 4731f58497e7dbab1b16e97c73b65559b852d0c2803Romain Guy * in the buffer.</p> 4749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void copyPixelsToBuffer(Buffer dst) { 4769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int elements = dst.remaining(); 4779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int shift; 4789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (dst instanceof ByteBuffer) { 4799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project shift = 0; 4809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (dst instanceof ShortBuffer) { 4819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project shift = 1; 4829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (dst instanceof IntBuffer) { 4839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project shift = 2; 4849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 4859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException("unsupported Buffer subclass"); 4869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4878cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 4889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long bufferSize = (long)elements << shift; 489f7f9d9c39df22ad6929f001f07588469f77e8bf5Jesse Wilson long pixelSize = getByteCount(); 4908cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 4919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (bufferSize < pixelSize) { 4929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException("Buffer not large enough for pixels"); 4939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4948cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 4959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project nativeCopyPixelsToBuffer(mNativeBitmap, dst); 4968cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 4979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // now update the buffer's position 4989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = dst.position(); 4999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position += pixelSize >> shift; 5009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dst.position(position); 5019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5043849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * <p>Copy the pixels from the buffer, beginning at the current position, 5059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * overwriting the bitmap's pixels. The data in the buffer is not changed 5069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * in any way (unlike setPixels(), which converts from unpremultipled 32bit 5073849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * to whatever the bitmap's native format is.</p> 5081f58497e7dbab1b16e97c73b65559b852d0c2803Romain Guy * <p>After this method returns, the current position of the buffer is 5091f58497e7dbab1b16e97c73b65559b852d0c2803Romain Guy * updated: the position is incremented by the number of elements read from 5101f58497e7dbab1b16e97c73b65559b852d0c2803Romain Guy * the buffer. If you need to read the bitmap from the buffer again you must 5111f58497e7dbab1b16e97c73b65559b852d0c2803Romain Guy * first rewind the buffer.</p> 5129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void copyPixelsFromBuffer(Buffer src) { 5149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRecycled("copyPixelsFromBuffer called on recycled bitmap"); 5158cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 5169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int elements = src.remaining(); 5179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int shift; 5189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (src instanceof ByteBuffer) { 5199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project shift = 0; 5209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (src instanceof ShortBuffer) { 5219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project shift = 1; 5229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (src instanceof IntBuffer) { 5239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project shift = 2; 5249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 5259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException("unsupported Buffer subclass"); 5269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5278cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 5283849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy long bufferBytes = (long) elements << shift; 529f7f9d9c39df22ad6929f001f07588469f77e8bf5Jesse Wilson long bitmapBytes = getByteCount(); 5308cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 5319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (bufferBytes < bitmapBytes) { 5329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException("Buffer not large enough for pixels"); 5339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5348cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 5359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project nativeCopyPixelsFromBuffer(mNativeBitmap, src); 53655adc145d460be4b21de0d77be1f6076c3591e3cMarco Nelissen 53755adc145d460be4b21de0d77be1f6076c3591e3cMarco Nelissen // now update the buffer's position 53855adc145d460be4b21de0d77be1f6076c3591e3cMarco Nelissen int position = src.position(); 53955adc145d460be4b21de0d77be1f6076c3591e3cMarco Nelissen position += bitmapBytes >> shift; 54055adc145d460be4b21de0d77be1f6076c3591e3cMarco Nelissen src.position(position); 5419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5428cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 5439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Tries to make a new bitmap based on the dimensions of this bitmap, 5459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * setting the new bitmap's config to the one specified, and then copying 5469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this bitmap's pixels into the new bitmap. If the conversion is not 54796e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * supported, or the allocator fails, then this returns NULL. The returned 54896e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * bitmap initially has the same density as the original. 5499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 5509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param config The desired config for the resulting bitmap 5519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param isMutable True if the resulting bitmap should be mutable (i.e. 5529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * its pixels can be modified) 5539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the new bitmap, or null if the copy could not be made. 5549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Bitmap copy(Config config, boolean isMutable) { 5569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRecycled("Can't copy a recycled bitmap"); 55796e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn Bitmap b = nativeCopy(mNativeBitmap, config.nativeInt, isMutable); 55896e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn if (b != null) { 55957ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III b.setPremultiplied(mRequestPremultiplied); 56096e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn b.mDensity = mDensity; 56196e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn } 56296e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn return b; 5639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56502d9102b3bdebac6989c2b7d12c080fb7c1f8e2bBrad Fitzpatrick /** 566f12f6f058f169ead83a546a1c3a51e49452a30b3Romain Guy * Creates a new bitmap, scaled from an existing bitmap, when possible. If the 567f12f6f058f169ead83a546a1c3a51e49452a30b3Romain Guy * specified width and height are the same as the current width and height of 5689f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik * the source bitmap, the source bitmap is returned and no new bitmap is 569f12f6f058f169ead83a546a1c3a51e49452a30b3Romain Guy * created. 57002d9102b3bdebac6989c2b7d12c080fb7c1f8e2bBrad Fitzpatrick * 57102d9102b3bdebac6989c2b7d12c080fb7c1f8e2bBrad Fitzpatrick * @param src The source bitmap. 57202d9102b3bdebac6989c2b7d12c080fb7c1f8e2bBrad Fitzpatrick * @param dstWidth The new bitmap's desired width. 57302d9102b3bdebac6989c2b7d12c080fb7c1f8e2bBrad Fitzpatrick * @param dstHeight The new bitmap's desired height. 57402d9102b3bdebac6989c2b7d12c080fb7c1f8e2bBrad Fitzpatrick * @param filter true if the source should be filtered. 575f12f6f058f169ead83a546a1c3a51e49452a30b3Romain Guy * @return The new scaled bitmap or the source bitmap if no scaling is required. 576790552b240c05d58407f7c14acba656b2e85c523Romain Guy * @throws IllegalArgumentException if width is <= 0, or height is <= 0 57702d9102b3bdebac6989c2b7d12c080fb7c1f8e2bBrad Fitzpatrick */ 578f12f6f058f169ead83a546a1c3a51e49452a30b3Romain Guy public static Bitmap createScaledBitmap(Bitmap src, int dstWidth, int dstHeight, 579f12f6f058f169ead83a546a1c3a51e49452a30b3Romain Guy boolean filter) { 5809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Matrix m; 5819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project synchronized (Bitmap.class) { 5829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // small pool of just 1 matrix 5839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project m = sScaleMatrix; 5849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sScaleMatrix = null; 5859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (m == null) { 5889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project m = new Matrix(); 5899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5908cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 5919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int width = src.getWidth(); 5929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = src.getHeight(); 5939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float sx = dstWidth / (float)width; 5949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float sy = dstHeight / (float)height; 5959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project m.setScale(sx, sy); 5969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Bitmap b = Bitmap.createBitmap(src, 0, 0, width, height, m, filter); 5979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project synchronized (Bitmap.class) { 5999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // do we need to check for null? why not just assign everytime? 6009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sScaleMatrix == null) { 6019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sScaleMatrix = m; 6029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6058cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen return b; 6069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6078cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 6089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns an immutable bitmap from the source bitmap. The new bitmap may 61096e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * be the same object as source, or a copy may have been made. It is 61196e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * initialized with the same density as the original bitmap. 6129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static Bitmap createBitmap(Bitmap src) { 6149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return createBitmap(src, 0, 0, src.getWidth(), src.getHeight()); 6159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns an immutable bitmap from the specified subset of the source 6199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * bitmap. The new bitmap may be the same object as source, or a copy may 620f12f6f058f169ead83a546a1c3a51e49452a30b3Romain Guy * have been made. It is initialized with the same density as the original 621f12f6f058f169ead83a546a1c3a51e49452a30b3Romain Guy * bitmap. 6229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param source The bitmap we are subsetting 6249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x The x coordinate of the first pixel in source 6259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y The y coordinate of the first pixel in source 6269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param width The number of pixels in each row 6279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param height The number of rows 628f12f6f058f169ead83a546a1c3a51e49452a30b3Romain Guy * @return A copy of a subset of the source bitmap or the source bitmap itself. 629790552b240c05d58407f7c14acba656b2e85c523Romain Guy * @throws IllegalArgumentException if the x, y, width, height values are 630790552b240c05d58407f7c14acba656b2e85c523Romain Guy * outside of the dimensions of the source bitmap, or width is <= 0, 631790552b240c05d58407f7c14acba656b2e85c523Romain Guy * or height is <= 0 6329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static Bitmap createBitmap(Bitmap source, int x, int y, int width, int height) { 6349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return createBitmap(source, x, y, width, height, null, false); 6359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6368cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 6379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns an immutable bitmap from subset of the source bitmap, 639f12f6f058f169ead83a546a1c3a51e49452a30b3Romain Guy * transformed by the optional matrix. The new bitmap may be the 640f12f6f058f169ead83a546a1c3a51e49452a30b3Romain Guy * same object as source, or a copy may have been made. It is 64196e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * initialized with the same density as the original bitmap. 642f12f6f058f169ead83a546a1c3a51e49452a30b3Romain Guy * 643f12f6f058f169ead83a546a1c3a51e49452a30b3Romain Guy * If the source bitmap is immutable and the requested subset is the 644f12f6f058f169ead83a546a1c3a51e49452a30b3Romain Guy * same as the source bitmap itself, then the source bitmap is 645f12f6f058f169ead83a546a1c3a51e49452a30b3Romain Guy * returned and no new bitmap is created. 6469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param source The bitmap we are subsetting 6489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x The x coordinate of the first pixel in source 6499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y The y coordinate of the first pixel in source 6509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param width The number of pixels in each row 6519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param height The number of rows 65260b88edea7132ddce90f2dced07c6706f1502270Ken Shirriff * @param m Optional matrix to be applied to the pixels 6539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param filter true if the source should be filtered. 6549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Only applies if the matrix contains more than just 6559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * translation. 6569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A bitmap that represents the specified subset of source 6579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IllegalArgumentException if the x, y, width, height values are 658790552b240c05d58407f7c14acba656b2e85c523Romain Guy * outside of the dimensions of the source bitmap, or width is <= 0, 659790552b240c05d58407f7c14acba656b2e85c523Romain Guy * or height is <= 0 6609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static Bitmap createBitmap(Bitmap source, int x, int y, int width, int height, 6629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Matrix m, boolean filter) { 6639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkXYSign(x, y); 6659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkWidthHeight(width, height); 6669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (x + width > source.getWidth()) { 6679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("x + width must be <= bitmap.width()"); 6689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (y + height > source.getHeight()) { 6709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("y + height must be <= bitmap.height()"); 6719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // check if we can just return our argument unchanged 6749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!source.isMutable() && x == 0 && y == 0 && width == source.getWidth() && 6759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height == source.getHeight() && (m == null || m.isIdentity())) { 6769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return source; 6779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6788cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 6799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int neww = width; 6809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int newh = height; 6819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Canvas canvas = new Canvas(); 6829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Bitmap bitmap; 6839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Paint paint; 6849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect srcR = new Rect(x, y, x + width, y + height); 6869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RectF dstR = new RectF(0, 0, width, height); 6879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 688feeea8f07c854e6b0ae2fec3aa2d239c17f32b5bRomain Guy Config newConfig = Config.ARGB_8888; 689feeea8f07c854e6b0ae2fec3aa2d239c17f32b5bRomain Guy final Config config = source.getConfig(); 690feeea8f07c854e6b0ae2fec3aa2d239c17f32b5bRomain Guy // GIF files generate null configs, assume ARGB_8888 691feeea8f07c854e6b0ae2fec3aa2d239c17f32b5bRomain Guy if (config != null) { 692feeea8f07c854e6b0ae2fec3aa2d239c17f32b5bRomain Guy switch (config) { 693feeea8f07c854e6b0ae2fec3aa2d239c17f32b5bRomain Guy case RGB_565: 694feeea8f07c854e6b0ae2fec3aa2d239c17f32b5bRomain Guy newConfig = Config.RGB_565; 695feeea8f07c854e6b0ae2fec3aa2d239c17f32b5bRomain Guy break; 696feeea8f07c854e6b0ae2fec3aa2d239c17f32b5bRomain Guy case ALPHA_8: 697feeea8f07c854e6b0ae2fec3aa2d239c17f32b5bRomain Guy newConfig = Config.ALPHA_8; 698feeea8f07c854e6b0ae2fec3aa2d239c17f32b5bRomain Guy break; 699676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy //noinspection deprecation 700feeea8f07c854e6b0ae2fec3aa2d239c17f32b5bRomain Guy case ARGB_4444: 701feeea8f07c854e6b0ae2fec3aa2d239c17f32b5bRomain Guy case ARGB_8888: 702feeea8f07c854e6b0ae2fec3aa2d239c17f32b5bRomain Guy default: 703feeea8f07c854e6b0ae2fec3aa2d239c17f32b5bRomain Guy newConfig = Config.ARGB_8888; 704feeea8f07c854e6b0ae2fec3aa2d239c17f32b5bRomain Guy break; 705feeea8f07c854e6b0ae2fec3aa2d239c17f32b5bRomain Guy } 706feeea8f07c854e6b0ae2fec3aa2d239c17f32b5bRomain Guy } 707d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy 7089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (m == null || m.isIdentity()) { 709d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy bitmap = createBitmap(neww, newh, newConfig, source.hasAlpha()); 7109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint = null; // not needed 7119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 712d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy final boolean transformed = !m.rectStaysRect(); 713d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy 7149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RectF deviceR = new RectF(); 7159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project m.mapRect(deviceR, dstR); 716d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy 7179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project neww = Math.round(deviceR.width()); 7189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newh = Math.round(deviceR.height()); 719d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy 720d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy bitmap = createBitmap(neww, newh, transformed ? Config.ARGB_8888 : newConfig, 721d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy transformed || source.hasAlpha()); 722d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy 7239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.translate(-deviceR.left, -deviceR.top); 7249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.concat(m); 725d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy 7269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint = new Paint(); 7279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint.setFilterBitmap(filter); 728d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy if (transformed) { 7299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint.setAntiAlias(true); 7309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7328790be6de3644e332ec6a17c855da89ffc13a9bfLeon Scroggins III 7339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The new bitmap was created from a known bitmap source so assume that 73411ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn // they use the same density 73511ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn bitmap.mDensity = source.mDensity; 73657ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III bitmap.setHasAlpha(source.hasAlpha()); 73757ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III bitmap.setPremultiplied(source.mRequestPremultiplied); 7388790be6de3644e332ec6a17c855da89ffc13a9bfLeon Scroggins III 73996e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn canvas.setBitmap(bitmap); 74096e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn canvas.drawBitmap(source, srcR, dstR, paint); 7416311d0a079702b29984c0d31937345be105e1a5eDianne Hackborn canvas.setBitmap(null); 7429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return bitmap; 7449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7458cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 7469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 74796e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * Returns a mutable bitmap with the specified width and height. Its 74896e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * initial density is as per {@link #getDensity}. 7499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param width The width of the bitmap 7519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param height The height of the bitmap 7529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param config The bitmap config to create. 7539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IllegalArgumentException if the width or height are <= 0 7549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static Bitmap createBitmap(int width, int height, Config config) { 756d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy return createBitmap(width, height, config, true); 757d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy } 758d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy 759d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy /** 760d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy * Returns a mutable bitmap with the specified width and height. Its 761dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * initial density is determined from the given {@link DisplayMetrics}. 762dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * 763dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param display Display metrics for the display this bitmap will be 764dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * drawn on. 765dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param width The width of the bitmap 766dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param height The height of the bitmap 767dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param config The bitmap config to create. 768dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @throws IllegalArgumentException if the width or height are <= 0 769dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn */ 770dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn public static Bitmap createBitmap(DisplayMetrics display, int width, 771dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn int height, Config config) { 772dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn return createBitmap(display, width, height, config, true); 773dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn } 774dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn 775dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn /** 776dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * Returns a mutable bitmap with the specified width and height. Its 777d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy * initial density is as per {@link #getDensity}. 778d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy * 779d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy * @param width The width of the bitmap 780d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy * @param height The height of the bitmap 781d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy * @param config The bitmap config to create. 782d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy * @param hasAlpha If the bitmap is ARGB_8888 this flag can be used to mark the 783d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy * bitmap as opaque. Doing so will clear the bitmap in black 784d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy * instead of transparent. 785d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy * 786d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy * @throws IllegalArgumentException if the width or height are <= 0 787d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy */ 788d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy private static Bitmap createBitmap(int width, int height, Config config, boolean hasAlpha) { 789dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn return createBitmap(null, width, height, config, hasAlpha); 790dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn } 791dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn 792dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn /** 793dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * Returns a mutable bitmap with the specified width and height. Its 794dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * initial density is determined from the given {@link DisplayMetrics}. 795dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * 796dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param display Display metrics for the display this bitmap will be 797dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * drawn on. 798dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param width The width of the bitmap 799dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param height The height of the bitmap 800dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param config The bitmap config to create. 801dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param hasAlpha If the bitmap is ARGB_8888 this flag can be used to mark the 802dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * bitmap as opaque. Doing so will clear the bitmap in black 803dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * instead of transparent. 804dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * 805dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @throws IllegalArgumentException if the width or height are <= 0 806dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn */ 807dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn private static Bitmap createBitmap(DisplayMetrics display, int width, int height, 808dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn Config config, boolean hasAlpha) { 809e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy if (width <= 0 || height <= 0) { 810e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy throw new IllegalArgumentException("width and height must be > 0"); 811e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy } 8129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Bitmap bm = nativeCreate(null, 0, width, width, height, config.nativeInt, true); 813dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn if (display != null) { 814dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn bm.mDensity = display.densityDpi; 815dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn } 8168790be6de3644e332ec6a17c855da89ffc13a9bfLeon Scroggins III bm.setHasAlpha(hasAlpha); 817d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy if (config == Config.ARGB_8888 && !hasAlpha) { 8181373a8eb581fe3c8e9a036e69042015f98a7e346Christopher Tate nativeErase(bm.mNativeBitmap, 0xff000000); 819d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy } 8203b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy // No need to initialize the bitmap to zeroes with other configs; 8213b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy // it is backed by a VM byte array which is by definition preinitialized 8223b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy // to all zeroes. 8239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return bm; 8249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8258cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 8269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns a immutable bitmap with the specified width and height, with each 82896e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * pixel value set to the corresponding value in the colors array. Its 82996e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * initial density is as per {@link #getDensity}. 8309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 8319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param colors Array of {@link Color} used to initialize the pixels. 8329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param offset Number of values to skip before the first color in the 8339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * array of colors. 8349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param stride Number of colors in the array between rows (must be >= 8359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * width or <= -width). 8369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param width The width of the bitmap 8379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param height The height of the bitmap 8389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param config The bitmap config to create. If the config does not 8399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * support per-pixel alpha (e.g. RGB_565), then the alpha 8409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * bytes in the colors[] will be ignored (assumed to be FF) 8419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IllegalArgumentException if the width or height are <= 0, or if 8429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the color array's length is less than the number of pixels. 8439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static Bitmap createBitmap(int colors[], int offset, int stride, 8459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int width, int height, Config config) { 846dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn return createBitmap(null, colors, offset, stride, width, height, config); 847dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn } 848dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn 849dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn /** 850dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * Returns a immutable bitmap with the specified width and height, with each 851dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * pixel value set to the corresponding value in the colors array. Its 852dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * initial density is determined from the given {@link DisplayMetrics}. 853dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * 854dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param display Display metrics for the display this bitmap will be 855dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * drawn on. 856dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param colors Array of {@link Color} used to initialize the pixels. 857dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param offset Number of values to skip before the first color in the 858dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * array of colors. 859dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param stride Number of colors in the array between rows (must be >= 860dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * width or <= -width). 861dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param width The width of the bitmap 862dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param height The height of the bitmap 863dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param config The bitmap config to create. If the config does not 864dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * support per-pixel alpha (e.g. RGB_565), then the alpha 865dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * bytes in the colors[] will be ignored (assumed to be FF) 866dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @throws IllegalArgumentException if the width or height are <= 0, or if 867dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * the color array's length is less than the number of pixels. 868dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn */ 869dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn public static Bitmap createBitmap(DisplayMetrics display, int colors[], 870dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn int offset, int stride, int width, int height, Config config) { 8719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkWidthHeight(width, height); 8739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (Math.abs(stride) < width) { 8749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("abs(stride) must be >= width"); 8759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int lastScanline = offset + (height - 1) * stride; 8779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int length = colors.length; 8789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (offset < 0 || (offset + width > length) || lastScanline < 0 || 8799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (lastScanline + width > length)) { 8809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new ArrayIndexOutOfBoundsException(); 8819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 882e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy if (width <= 0 || height <= 0) { 883e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy throw new IllegalArgumentException("width and height must be > 0"); 884e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy } 885dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn Bitmap bm = nativeCreate(colors, offset, stride, width, height, 8869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project config.nativeInt, false); 887dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn if (display != null) { 888dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn bm.mDensity = display.densityDpi; 889dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn } 890dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn return bm; 8919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns a immutable bitmap with the specified width and height, with each 89596e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * pixel value set to the corresponding value in the colors array. Its 89696e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * initial density is as per {@link #getDensity}. 8979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 8989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param colors Array of {@link Color} used to initialize the pixels. 8999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This array must be at least as large as width * height. 9009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param width The width of the bitmap 9019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param height The height of the bitmap 9029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param config The bitmap config to create. If the config does not 9039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * support per-pixel alpha (e.g. RGB_565), then the alpha 9049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * bytes in the colors[] will be ignored (assumed to be FF) 9059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IllegalArgumentException if the width or height are <= 0, or if 9069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the color array's length is less than the number of pixels. 9079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 9089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static Bitmap createBitmap(int colors[], int width, int height, Config config) { 909dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn return createBitmap(null, colors, 0, width, width, height, config); 910dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn } 911dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn 912dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn /** 913dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * Returns a immutable bitmap with the specified width and height, with each 914dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * pixel value set to the corresponding value in the colors array. Its 915dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * initial density is determined from the given {@link DisplayMetrics}. 916dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * 917dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param display Display metrics for the display this bitmap will be 918dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * drawn on. 919dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param colors Array of {@link Color} used to initialize the pixels. 920dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * This array must be at least as large as width * height. 921dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param width The width of the bitmap 922dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param height The height of the bitmap 923dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param config The bitmap config to create. If the config does not 924dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * support per-pixel alpha (e.g. RGB_565), then the alpha 925dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * bytes in the colors[] will be ignored (assumed to be FF) 926dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @throws IllegalArgumentException if the width or height are <= 0, or if 927dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * the color array's length is less than the number of pixels. 928dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn */ 929dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn public static Bitmap createBitmap(DisplayMetrics display, int colors[], 930dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn int width, int height, Config config) { 931dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn return createBitmap(display, colors, 0, width, width, height, config); 9329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 9359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns an optional array of private data, used by the UI system for 9369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * some bitmaps. Not intended to be called by applications. 9379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 9389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public byte[] getNinePatchChunk() { 9399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mNinePatchChunk; 9409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 943c054966b719c8a7255f7cf4120cca5050acb68bdAlan Viverette * Populates a rectangle with the bitmap's optical insets. 944c054966b719c8a7255f7cf4120cca5050acb68bdAlan Viverette * 945c054966b719c8a7255f7cf4120cca5050acb68bdAlan Viverette * @param outInsets Rect to populate with optical insets 946ec4a50428d5f26a22df3edaf7e5b08f41d5cb54bAmith Yamasani * @hide 947ec4a50428d5f26a22df3edaf7e5b08f41d5cb54bAmith Yamasani */ 948c054966b719c8a7255f7cf4120cca5050acb68bdAlan Viverette public void getOpticalInsets(@NonNull Rect outInsets) { 94947cd8e921db73e894f94ec4729ade90da50996f5Chris Craik if (mNinePatchInsets == null) { 950c054966b719c8a7255f7cf4120cca5050acb68bdAlan Viverette outInsets.setEmpty(); 951c054966b719c8a7255f7cf4120cca5050acb68bdAlan Viverette } else { 95247cd8e921db73e894f94ec4729ade90da50996f5Chris Craik outInsets.set(mNinePatchInsets.opticalRect); 953c054966b719c8a7255f7cf4120cca5050acb68bdAlan Viverette } 954ec4a50428d5f26a22df3edaf7e5b08f41d5cb54bAmith Yamasani } 955ec4a50428d5f26a22df3edaf7e5b08f41d5cb54bAmith Yamasani 95647cd8e921db73e894f94ec4729ade90da50996f5Chris Craik /** @hide */ 95747cd8e921db73e894f94ec4729ade90da50996f5Chris Craik public NinePatch.InsetStruct getNinePatchInsets() { 95847cd8e921db73e894f94ec4729ade90da50996f5Chris Craik return mNinePatchInsets; 95947cd8e921db73e894f94ec4729ade90da50996f5Chris Craik } 96047cd8e921db73e894f94ec4729ade90da50996f5Chris Craik 961ec4a50428d5f26a22df3edaf7e5b08f41d5cb54bAmith Yamasani /** 9629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Specifies the known formats a bitmap can be compressed into 9639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 9649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public enum CompressFormat { 9659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project JPEG (0), 9662305ac9e4a262ed09fd034ae417e9b1dda4c0ccbVikas Arora PNG (1), 9672305ac9e4a262ed09fd034ae417e9b1dda4c0ccbVikas Arora WEBP (2); 9689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project CompressFormat(int nativeInt) { 9709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this.nativeInt = nativeInt; 9719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int nativeInt; 9739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 9769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Number of bytes of temp storage we use for communicating between the 9779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * native compressor and the java OutputStream. 9789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 9799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private final static int WORKING_COMPRESS_STORAGE = 4096; 9809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 9829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Write a compressed version of the bitmap to the specified outputstream. 9839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * If this returns true, the bitmap can be reconstructed by passing a 9849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * corresponding inputstream to BitmapFactory.decodeStream(). Note: not 9859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * all Formats support all bitmap configs directly, so it is possible that 9869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the returned bitmap from BitmapFactory could be in a different bitdepth, 9879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * and/or may have lost per-pixel alpha (e.g. JPEG only supports opaque 9889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * pixels). 9899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 9909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param format The format of the compressed image 9919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param quality Hint to the compressor, 0-100. 0 meaning compress for 9929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * small size, 100 meaning compress for max quality. Some 9939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * formats, like PNG which is lossless, will ignore the 9949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * quality setting 9959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param stream The outputstream to write the compressed data. 9969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if successfully compressed to the specified stream. 9979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 9989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean compress(CompressFormat format, int quality, OutputStream stream) { 9999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRecycled("Can't compress a recycled bitmap"); 10009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // do explicit check before calling the native method 10019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (stream == null) { 10029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new NullPointerException(); 10039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (quality < 0 || quality > 100) { 10059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("quality must be 0..100"); 10069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10070df3bd5594bbbbfbf6058ecb31e9b94a1cd22f7dJohn Reck Trace.traceBegin(Trace.TRACE_TAG_RESOURCES, "Bitmap.compress"); 10080df3bd5594bbbbfbf6058ecb31e9b94a1cd22f7dJohn Reck boolean result = nativeCompress(mNativeBitmap, format.nativeInt, quality, 10099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project stream, new byte[WORKING_COMPRESS_STORAGE]); 10100df3bd5594bbbbfbf6058ecb31e9b94a1cd22f7dJohn Reck Trace.traceEnd(Trace.TRACE_TAG_RESOURCES); 10110df3bd5594bbbbfbf6058ecb31e9b94a1cd22f7dJohn Reck return result; 10129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10138cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 10149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1015ff236f5fc1a088b1210d37a67b0e88b06c0fbdb2Newton Allen * Returns true if the bitmap is marked as mutable (i.e. can be drawn into) 10169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final boolean isMutable() { 10189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mIsMutable; 10199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10213849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy /** 10223849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * <p>Indicates whether pixels stored in this bitmaps are stored pre-multiplied. 10233849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * When a pixel is pre-multiplied, the RGB components have been multiplied by 10243849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * the alpha component. For instance, if the original color is a 50% 10253849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * translucent red <code>(128, 255, 0, 0)</code>, the pre-multiplied form is 10263849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * <code>(128, 128, 0, 0)</code>.</p> 10273849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * 10283849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * <p>This method always returns false if {@link #getConfig()} is 10294ff0cf4b83605bff630c4e6f1fabe4f72a3f93a1Romain Guy * {@link Bitmap.Config#RGB_565}.</p> 10304ff0cf4b83605bff630c4e6f1fabe4f72a3f93a1Romain Guy * 103157ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III * <p>The return value is undefined if {@link #getConfig()} is 103257ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III * {@link Bitmap.Config#ALPHA_8}.</p> 103357ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III * 10344ff0cf4b83605bff630c4e6f1fabe4f72a3f93a1Romain Guy * <p>This method only returns true if {@link #hasAlpha()} returns true. 10354ff0cf4b83605bff630c4e6f1fabe4f72a3f93a1Romain Guy * A bitmap with no alpha channel can be used both as a pre-multiplied and 10364ff0cf4b83605bff630c4e6f1fabe4f72a3f93a1Romain Guy * as a non pre-multiplied bitmap.</p> 10371abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * 10381abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * <p>Only pre-multiplied bitmaps may be drawn by the view system or 10391abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * {@link Canvas}. If a non-pre-multiplied bitmap with an alpha channel is 10401abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * drawn to a Canvas, a RuntimeException will be thrown.</p> 10411abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * 10423849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * @return true if the underlying pixels have been pre-multiplied, false 10433849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * otherwise 10441abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * 10451abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * @see Bitmap#setPremultiplied(boolean) 10461abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * @see BitmapFactory.Options#inPremultiplied 10473849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy */ 10483849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy public final boolean isPremultiplied() { 104957ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III return nativeIsPremultiplied(mNativeBitmap); 10501abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik } 10511abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik 10521abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik /** 10531abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * Sets whether the bitmap should treat its data as pre-multiplied. 10541abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * 10551abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * <p>Bitmaps are always treated as pre-multiplied by the view system and 10561abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * {@link Canvas} for performance reasons. Storing un-pre-multiplied data in 10571abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * a Bitmap (through {@link #setPixel}, {@link #setPixels}, or {@link 10581abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * BitmapFactory.Options#inPremultiplied BitmapFactory.Options.inPremultiplied}) 10591abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * can lead to incorrect blending if drawn by the framework.</p> 10601abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * 10611abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * <p>This method will not affect the behavior of a bitmap without an alpha 10621abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * channel, or if {@link #hasAlpha()} returns false.</p> 10631abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * 1064889a1ddd00b74933d5f7daa651d98133bcb034baBen Murdoch * <p>Calling {@link #createBitmap} or {@link #createScaledBitmap} with a source 10658790be6de3644e332ec6a17c855da89ffc13a9bfLeon Scroggins III * Bitmap whose colors are not pre-multiplied may result in a RuntimeException, 10668790be6de3644e332ec6a17c855da89ffc13a9bfLeon Scroggins III * since those functions require drawing the source, which is not supported for 10678790be6de3644e332ec6a17c855da89ffc13a9bfLeon Scroggins III * un-pre-multiplied Bitmaps.</p> 10688790be6de3644e332ec6a17c855da89ffc13a9bfLeon Scroggins III * 10691abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * @see Bitmap#isPremultiplied() 10701abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * @see BitmapFactory.Options#inPremultiplied 10711abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik */ 10721abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik public final void setPremultiplied(boolean premultiplied) { 107357ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III mRequestPremultiplied = premultiplied; 107457ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III nativeSetPremultiplied(mNativeBitmap, premultiplied); 10753849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy } 10763849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy 10779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** Returns the bitmap's width */ 10789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final int getWidth() { 10791abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik return mWidth; 10809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** Returns the bitmap's height */ 10839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final int getHeight() { 10841abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik return mHeight; 10859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10868cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 10879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 108811ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * Convenience for calling {@link #getScaledWidth(int)} with the target 108911ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * density of the given {@link Canvas}. 10909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10912784ff0af88128f66ae690b73d48fb7e4a211e68Dianne Hackborn public int getScaledWidth(Canvas canvas) { 109211ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn return scaleFromDensity(getWidth(), mDensity, canvas.mDensity); 10932784ff0af88128f66ae690b73d48fb7e4a211e68Dianne Hackborn } 10942784ff0af88128f66ae690b73d48fb7e4a211e68Dianne Hackborn 10952784ff0af88128f66ae690b73d48fb7e4a211e68Dianne Hackborn /** 109611ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * Convenience for calling {@link #getScaledHeight(int)} with the target 109711ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * density of the given {@link Canvas}. 10982784ff0af88128f66ae690b73d48fb7e4a211e68Dianne Hackborn */ 10992784ff0af88128f66ae690b73d48fb7e4a211e68Dianne Hackborn public int getScaledHeight(Canvas canvas) { 110011ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn return scaleFromDensity(getHeight(), mDensity, canvas.mDensity); 110111ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn } 110211ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn 110311ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn /** 110411ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * Convenience for calling {@link #getScaledWidth(int)} with the target 110511ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * density of the given {@link DisplayMetrics}. 110611ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn */ 110711ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn public int getScaledWidth(DisplayMetrics metrics) { 110811ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn return scaleFromDensity(getWidth(), mDensity, metrics.densityDpi); 110911ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn } 111011ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn 111111ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn /** 111211ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * Convenience for calling {@link #getScaledHeight(int)} with the target 111311ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * density of the given {@link DisplayMetrics}. 111411ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn */ 111511ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn public int getScaledHeight(DisplayMetrics metrics) { 111611ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn return scaleFromDensity(getHeight(), mDensity, metrics.densityDpi); 11172784ff0af88128f66ae690b73d48fb7e4a211e68Dianne Hackborn } 11182784ff0af88128f66ae690b73d48fb7e4a211e68Dianne Hackborn 11192784ff0af88128f66ae690b73d48fb7e4a211e68Dianne Hackborn /** 11202784ff0af88128f66ae690b73d48fb7e4a211e68Dianne Hackborn * Convenience method that returns the width of this bitmap divided 11212784ff0af88128f66ae690b73d48fb7e4a211e68Dianne Hackborn * by the density scale factor. 11222784ff0af88128f66ae690b73d48fb7e4a211e68Dianne Hackborn * 112311ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @param targetDensity The density of the target canvas of the bitmap. 11242784ff0af88128f66ae690b73d48fb7e4a211e68Dianne Hackborn * @return The scaled width of this bitmap, according to the density scale factor. 11252784ff0af88128f66ae690b73d48fb7e4a211e68Dianne Hackborn */ 112611ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn public int getScaledWidth(int targetDensity) { 112711ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn return scaleFromDensity(getWidth(), mDensity, targetDensity); 11289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Convenience method that returns the height of this bitmap divided 11329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * by the density scale factor. 11339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 113411ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @param targetDensity The density of the target canvas of the bitmap. 11359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The scaled height of this bitmap, according to the density scale factor. 11369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 113711ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn public int getScaledHeight(int targetDensity) { 113811ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn return scaleFromDensity(getHeight(), mDensity, targetDensity); 113911ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn } 114011ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn 114111ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn /** 114211ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @hide 114311ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn */ 114411ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn static public int scaleFromDensity(int size, int sdensity, int tdensity) { 11450b68477f8287fe5ddac1beb1c9d0811ded034dadRomain Guy if (sdensity == DENSITY_NONE || tdensity == DENSITY_NONE || sdensity == tdensity) { 114611ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn return size; 11472784ff0af88128f66ae690b73d48fb7e4a211e68Dianne Hackborn } 114811ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn 114911ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn // Scale by tdensity / sdensity, rounding up. 1150366a84056c9a695ee6702d9d30bf9f3b521ba7ccRomain Guy return ((size * tdensity) + (sdensity >> 1)) / sdensity; 11519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 115211ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn 11539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Return the number of bytes between rows in the bitmap's pixels. Note that 11559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this refers to the pixels as stored natively by the bitmap. If you call 11569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * getPixels() or setPixels(), then the pixels are uniformly treated as 11579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 32bit values, packed according to the Color class. 11589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1159e8222dddaf2e3da14380101e818d4254899e0c0dChet Haase * <p>As of {@link android.os.Build.VERSION_CODES#KITKAT}, this method 11609f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik * should not be used to calculate the memory usage of the bitmap. Instead, 11619f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik * see {@link #getAllocationByteCount()}. 11629f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik * 11639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return number of bytes between rows of the native bitmap pixels. 11649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final int getRowBytes() { 11669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return nativeRowBytes(mNativeBitmap); 11679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11688cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 11699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11709f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik * Returns the minimum number of bytes that can be used to store this bitmap's pixels. 11719f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik * 1172e8222dddaf2e3da14380101e818d4254899e0c0dChet Haase * <p>As of {@link android.os.Build.VERSION_CODES#KITKAT}, the result of this method can 11739f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik * no longer be used to determine memory usage of a bitmap. See {@link 1174c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * #getAllocationByteCount()}.</p> 1175f7f9d9c39df22ad6929f001f07588469f77e8bf5Jesse Wilson */ 1176f7f9d9c39df22ad6929f001f07588469f77e8bf5Jesse Wilson public final int getByteCount() { 1177f7f9d9c39df22ad6929f001f07588469f77e8bf5Jesse Wilson // int result permits bitmaps up to 46,340 x 46,340 1178f7f9d9c39df22ad6929f001f07588469f77e8bf5Jesse Wilson return getRowBytes() * getHeight(); 1179f7f9d9c39df22ad6929f001f07588469f77e8bf5Jesse Wilson } 1180f7f9d9c39df22ad6929f001f07588469f77e8bf5Jesse Wilson 1181f7f9d9c39df22ad6929f001f07588469f77e8bf5Jesse Wilson /** 11829f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik * Returns the size of the allocated memory used to store this bitmap's pixels. 11839f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik * 11849f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik * <p>This can be larger than the result of {@link #getByteCount()} if a bitmap is reused to 1185c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * decode other bitmaps of smaller size, or by manual reconfiguration. See {@link 1186c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * #reconfigure(int, int, Config)}, {@link #setWidth(int)}, {@link #setHeight(int)}, {@link 1187c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * #setConfig(Bitmap.Config)}, and {@link BitmapFactory.Options#inBitmap 1188c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * BitmapFactory.Options.inBitmap}. If a bitmap is not modified in this way, this value will be 1189c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * the same as that returned by {@link #getByteCount()}.</p> 1190c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * 1191c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * <p>This value will not change over the lifetime of a Bitmap.</p> 11929f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik * 1193c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * @see #reconfigure(int, int, Config) 11949f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik */ 11959f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik public final int getAllocationByteCount() { 1196222f2ad294c9046b62af5e059f8b409aec044ce9Chris Craik if (mBuffer == null) { 1197222f2ad294c9046b62af5e059f8b409aec044ce9Chris Craik // native backed bitmaps don't support reconfiguration, 1198222f2ad294c9046b62af5e059f8b409aec044ce9Chris Craik // so alloc size is always content size 1199222f2ad294c9046b62af5e059f8b409aec044ce9Chris Craik return getByteCount(); 1200222f2ad294c9046b62af5e059f8b409aec044ce9Chris Craik } 12019f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik return mBuffer.length; 12029f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik } 12039f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik 12049f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik /** 12059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * If the bitmap's internal config is in one of the public formats, return 12069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * that config, otherwise return null. 12079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final Config getConfig() { 12099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return Config.nativeToConfig(nativeConfig(mNativeBitmap)); 12109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1212a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed /** Returns true if the bitmap's config supports per-pixel alpha, and 1213a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed * if the pixels may contain non-opaque alpha values. For some configs, 1214a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed * this is always false (e.g. RGB_565), since they do not support per-pixel 1215a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed * alpha. However, for configs that do, the bitmap may be flagged to be 1216a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed * known that all of its pixels are opaque. In this case hasAlpha() will 1217a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed * also return false. If a config such as ARGB_8888 is not so flagged, 1218a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed * it will return true by default. 1219a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed */ 12209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final boolean hasAlpha() { 12219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return nativeHasAlpha(mNativeBitmap); 12229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1225a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed * Tell the bitmap if all of the pixels are known to be opaque (false) 1226a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed * or if some of the pixels may contain non-opaque alpha values (true). 1227366a84056c9a695ee6702d9d30bf9f3b521ba7ccRomain Guy * Note, for some configs (e.g. RGB_565) this call is ignored, since it 1228366a84056c9a695ee6702d9d30bf9f3b521ba7ccRomain Guy * does not support per-pixel alpha values. 1229a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed * 1230a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed * This is meant as a drawing hint, as in some cases a bitmap that is known 1231a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed * to be opaque can take a faster drawing case than one that may have 1232a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed * non-opaque per-pixel alpha values. 1233a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed */ 1234a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed public void setHasAlpha(boolean hasAlpha) { 123557ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III nativeSetHasAlpha(mNativeBitmap, hasAlpha, mRequestPremultiplied); 1236a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed } 1237a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed 1238a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed /** 1239713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * Indicates whether the renderer responsible for drawing this 1240713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * bitmap should attempt to use mipmaps when this bitmap is drawn 1241713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * scaled down. 1242713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * 1243713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * If you know that you are going to draw this bitmap at less than 1244713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * 50% of its original size, you may be able to obtain a higher 1245713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * quality 1246713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * 1247713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * This property is only a suggestion that can be ignored by the 1248713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * renderer. It is not guaranteed to have any effect. 1249713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * 1250713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * @return true if the renderer should attempt to use mipmaps, 1251713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * false otherwise 1252713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * 1253713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * @see #setHasMipMap(boolean) 1254713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy */ 1255713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy public final boolean hasMipMap() { 1256713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy return nativeHasMipMap(mNativeBitmap); 1257713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy } 1258713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy 1259713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy /** 1260713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * Set a hint for the renderer responsible for drawing this bitmap 1261713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * indicating that it should attempt to use mipmaps when this bitmap 1262713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * is drawn scaled down. 1263713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * 1264713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * If you know that you are going to draw this bitmap at less than 1265713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * 50% of its original size, you may be able to obtain a higher 1266713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * quality by turning this property on. 1267713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * 1268713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * Note that if the renderer respects this hint it might have to 1269713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * allocate extra memory to hold the mipmap levels for this bitmap. 1270713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * 1271713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * This property is only a suggestion that can be ignored by the 1272713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * renderer. It is not guaranteed to have any effect. 1273713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * 1274713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * @param hasMipMap indicates whether the renderer should attempt 1275713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * to use mipmaps 1276713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * 1277713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * @see #hasMipMap() 1278713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy */ 1279713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy public final void setHasMipMap(boolean hasMipMap) { 1280713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy nativeSetHasMipMap(mNativeBitmap, hasMipMap); 1281713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy } 1282713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy 1283713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy /** 12849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fills the bitmap's pixels with the specified {@link Color}. 12859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IllegalStateException if the bitmap is not mutable. 12879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void eraseColor(int c) { 12899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRecycled("Can't erase a recycled bitmap"); 12909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!isMutable()) { 12919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalStateException("cannot erase immutable bitmaps"); 12929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project nativeErase(mNativeBitmap, c); 12949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the {@link Color} at the specified location. Throws an exception 12989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * if x or y are out of bounds (negative or >= to the width or height 12993849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * respectively). The returned color is a non-premultiplied ARGB value. 13009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x The x coordinate (0...width-1) of the pixel to return 13029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y The y coordinate (0...height-1) of the pixel to return 13039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The argb {@link Color} at the specified coordinate 13049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IllegalArgumentException if x, y exceed the bitmap's bounds 13059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getPixel(int x, int y) { 13079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRecycled("Can't call getPixel() on a recycled bitmap"); 13089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkPixelAccess(x, y); 130957ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III return nativeGetPixel(mNativeBitmap, x, y); 13109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13118cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 13129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns in pixels[] a copy of the data in the bitmap. Each value is 13149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * a packed int representing a {@link Color}. The stride parameter allows 13159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the caller to allow for gaps in the returned pixels array between 13169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * rows. For normal packed results, just pass width for the stride value. 13173849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * The returned colors are non-premultiplied ARGB values. 13189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param pixels The array to receive the bitmap's colors 13209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param offset The first index to write into pixels[] 13219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param stride The number of entries in pixels[] to skip between 13229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * rows (must be >= bitmap's width). Can be negative. 13239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x The x coordinate of the first pixel to read from 13249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bitmap 13259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y The y coordinate of the first pixel to read from 13269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bitmap 13279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param width The number of pixels to read from each row 13289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param height The number of rows to read 13293849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * 13309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IllegalArgumentException if x, y, width, height exceed the 13319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * bounds of the bitmap, or if abs(stride) < width. 13329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws ArrayIndexOutOfBoundsException if the pixels array is too small 13339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to receive the specified number of pixels. 13349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void getPixels(int[] pixels, int offset, int stride, 13369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int x, int y, int width, int height) { 13379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRecycled("Can't call getPixels() on a recycled bitmap"); 13389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (width == 0 || height == 0) { 13399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; // nothing to do 13409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkPixelsAccess(x, y, width, height, offset, stride, pixels); 13429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project nativeGetPixels(mNativeBitmap, pixels, offset, stride, 134357ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III x, y, width, height); 13449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13458cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 13469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Shared code to check for illegal arguments passed to getPixel() 13489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * or setPixel() 13493849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * 13509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x x coordinate of the pixel 13519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y y coordinate of the pixel 13529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void checkPixelAccess(int x, int y) { 13549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkXYSign(x, y); 13559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (x >= getWidth()) { 13569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("x must be < bitmap.width()"); 13579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (y >= getHeight()) { 13599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("y must be < bitmap.height()"); 13609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Shared code to check for illegal arguments passed to getPixels() 13659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * or setPixels() 13669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x left edge of the area of pixels to access 13689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y top edge of the area of pixels to access 13699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param width width of the area of pixels to access 13709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param height height of the area of pixels to access 13719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param offset offset into pixels[] array 13729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param stride number of elements in pixels[] between each logical row 13739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param pixels array to hold the area of pixels being accessed 13749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void checkPixelsAccess(int x, int y, int width, int height, 13769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int offset, int stride, int pixels[]) { 13779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkXYSign(x, y); 13789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (width < 0) { 13799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("width must be >= 0"); 13809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height < 0) { 13829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("height must be >= 0"); 13839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (x + width > getWidth()) { 13859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException( 13869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "x + width must be <= bitmap.width()"); 13879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (y + height > getHeight()) { 13899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException( 13909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "y + height must be <= bitmap.height()"); 13919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (Math.abs(stride) < width) { 13939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("abs(stride) must be >= width"); 13949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int lastScanline = offset + (height - 1) * stride; 13969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int length = pixels.length; 13979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (offset < 0 || (offset + width > length) 13989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project || lastScanline < 0 13999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project || (lastScanline + width > length)) { 14009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new ArrayIndexOutOfBoundsException(); 14019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14038cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 14049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14053849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * <p>Write the specified {@link Color} into the bitmap (assuming it is 14063849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * mutable) at the x,y coordinate. The color must be a 14073849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * non-premultiplied ARGB value.</p> 14089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x The x coordinate of the pixel to replace (0...width-1) 14109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y The y coordinate of the pixel to replace (0...height-1) 14113849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * @param color The ARGB color to write into the bitmap 14123849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * 14139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IllegalStateException if the bitmap is not mutable 14149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IllegalArgumentException if x, y are outside of the bitmap's 14159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * bounds. 14169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setPixel(int x, int y, int color) { 14189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRecycled("Can't call setPixel() on a recycled bitmap"); 14199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!isMutable()) { 14209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalStateException(); 14219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkPixelAccess(x, y); 142357ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III nativeSetPixel(mNativeBitmap, x, y, color); 14249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14258cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 14269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14273849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * <p>Replace pixels in the bitmap with the colors in the array. Each element 14283849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * in the array is a packed int prepresenting a non-premultiplied ARGB 14293849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * {@link Color}.</p> 14309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param pixels The colors to write to the bitmap 14329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param offset The index of the first color to read from pixels[] 14339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param stride The number of colors in pixels[] to skip between rows. 14349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Normally this value will be the same as the width of 14359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bitmap, but it can be larger (or negative). 14369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x The x coordinate of the first pixel to write to in 14379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bitmap. 14389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y The y coordinate of the first pixel to write to in 14399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bitmap. 14409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param width The number of colors to copy from pixels[] per row 14419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param height The number of rows to write to the bitmap 14423849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * 14439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IllegalStateException if the bitmap is not mutable 14449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IllegalArgumentException if x, y, width, height are outside of 14459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bitmap's bounds. 14469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws ArrayIndexOutOfBoundsException if the pixels array is too small 14479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to receive the specified number of pixels. 14489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setPixels(int[] pixels, int offset, int stride, 14503849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy int x, int y, int width, int height) { 14519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRecycled("Can't call setPixels() on a recycled bitmap"); 14529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!isMutable()) { 14539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalStateException(); 14549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (width == 0 || height == 0) { 14569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; // nothing to do 14579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkPixelsAccess(x, y, width, height, offset, stride, pixels); 14599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project nativeSetPixels(mNativeBitmap, pixels, offset, stride, 146057ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III x, y, width, height); 14619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14628cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 14639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final Parcelable.Creator<Bitmap> CREATOR 14649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project = new Parcelable.Creator<Bitmap>() { 14659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rebuilds a bitmap previously stored with writeToParcel(). 14679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param p Parcel object to read the bitmap from 14699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return a new bitmap created from the data in the parcel 14709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Bitmap createFromParcel(Parcel p) { 14729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Bitmap bm = nativeCreateFromParcel(p); 14739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (bm == null) { 14749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException("Failed to unparcel Bitmap"); 14759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return bm; 14779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Bitmap[] newArray(int size) { 14799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new Bitmap[size]; 14809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }; 14829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * No special parcel contents. 14859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int describeContents() { 1487b6377170960d40e66858d8b4d335a95eac773762Bart Sears return 0; 14889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Write the bitmap and its pixels to the parcel. The bitmap can be 14929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * rebuilt from the parcel by calling CREATOR.createFromParcel(). 14939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param p Parcel object to write the bitmap data into 14949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void writeToParcel(Parcel p, int flags) { 14969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRecycled("Can't parcel a recycled bitmap"); 1497de0dfb7b65a02d4dd74c271b558adee0973fc267Dianne Hackborn if (!nativeWriteToParcel(mNativeBitmap, mIsMutable, mDensity, p)) { 14989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException("native writeToParcel failed"); 14999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns a new bitmap that captures the alpha values of the original. 15049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This may be drawn with Canvas.drawBitmap(), where the color(s) will be 15059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * taken from the paint that is passed to the draw call. 15069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return new bitmap containing the alpha channel of the original bitmap. 15089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Bitmap extractAlpha() { 15109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return extractAlpha(null, null); 15119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15128cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 15139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns a new bitmap that captures the alpha values of the original. 15159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * These values may be affected by the optional Paint parameter, which 15169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * can contain its own alpha, and may also contain a MaskFilter which 15179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * could change the actual dimensions of the resulting bitmap (e.g. 15189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * a blur maskfilter might enlarge the resulting bitmap). If offsetXY 15199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is not null, it returns the amount to offset the returned bitmap so 15209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * that it will logically align with the original. For example, if the 15219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * paint contains a blur of radius 2, then offsetXY[] would contains 15229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * -2, -2, so that drawing the alpha bitmap offset by (-2, -2) and then 15239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * drawing the original would result in the blur visually aligning with 15249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the original. 152596e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * 152696e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * <p>The initial density of the returned bitmap is the same as the original's. 152796e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * 15289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint Optional paint used to modify the alpha values in the 15299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * resulting bitmap. Pass null for default behavior. 15309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param offsetXY Optional array that returns the X (index 0) and Y 15319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (index 1) offset needed to position the returned bitmap 15329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * so that it visually lines up with the original. 15339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return new bitmap containing the (optionally modified by paint) alpha 15349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * channel of the original bitmap. This may be drawn with 15359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Canvas.drawBitmap(), where the color(s) will be taken from the 15369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * paint that is passed to the draw call. 15379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Bitmap extractAlpha(Paint paint, int[] offsetXY) { 15399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRecycled("Can't extractAlpha on a recycled bitmap"); 154036bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat long nativePaint = paint != null ? paint.mNativePaint : 0; 15419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Bitmap bm = nativeExtractAlpha(mNativeBitmap, nativePaint, offsetXY); 15429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (bm == null) { 15439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException("Failed to extractAlpha on Bitmap"); 15449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 154596e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn bm.mDensity = mDensity; 15469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return bm; 15479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15498cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen /** 155076d1e01d5e65c4631c827831e98ad4e300d99eabMike Reed * Given another bitmap, return true if it has the same dimensions, config, 155176d1e01d5e65c4631c827831e98ad4e300d99eabMike Reed * and pixel data as this bitmap. If any of those differ, return false. 155276d1e01d5e65c4631c827831e98ad4e300d99eabMike Reed * If other is null, return false. 155376d1e01d5e65c4631c827831e98ad4e300d99eabMike Reed */ 155476d1e01d5e65c4631c827831e98ad4e300d99eabMike Reed public boolean sameAs(Bitmap other) { 1555366a84056c9a695ee6702d9d30bf9f3b521ba7ccRomain Guy return this == other || (other != null && nativeSameAs(mNativeBitmap, other.mNativeBitmap)); 155676d1e01d5e65c4631c827831e98ad4e300d99eabMike Reed } 155776d1e01d5e65c4631c827831e98ad4e300d99eabMike Reed 155876d1e01d5e65c4631c827831e98ad4e300d99eabMike Reed /** 15598cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen * Rebuilds any caches associated with the bitmap that are used for 15608cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen * drawing it. In the case of purgeable bitmaps, this call will attempt to 15618cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen * ensure that the pixels have been decoded. 15628cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen * If this is called on more than one bitmap in sequence, the priority is 15638cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen * given in LRU order (i.e. the last bitmap called will be given highest 15648cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen * priority). 15658cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen * 15668cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen * For bitmaps with no associated caches, this call is effectively a no-op, 15678cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen * and therefore is harmless. 15688cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen */ 15698cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen public void prepareToDraw() { 15708cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen nativePrepareToDraw(mNativeBitmap); 15718cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen } 15728cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 1573e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy private static class BitmapFinalizer { 15744018eb376383a9bbe2aa75a95cc6917ca72aa0b7John Reck private long mNativeBitmap; 157502890fd0f98b3b8d98baf0bda1ea906afd723d8bRomain Guy 15764cd7dbc90f93893f521dce32d8cd25c02a185a24Chris Craik // Native memory allocated for the duration of the Bitmap, 15774cd7dbc90f93893f521dce32d8cd25c02a185a24Chris Craik // if pixel data allocated into native memory, instead of java byte[] 15784cd7dbc90f93893f521dce32d8cd25c02a185a24Chris Craik private final int mNativeAllocationByteCount; 15794cd7dbc90f93893f521dce32d8cd25c02a185a24Chris Craik 15804cd7dbc90f93893f521dce32d8cd25c02a185a24Chris Craik BitmapFinalizer(long nativeBitmap, int nativeAllocationByteCount) { 1581e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy mNativeBitmap = nativeBitmap; 15824cd7dbc90f93893f521dce32d8cd25c02a185a24Chris Craik mNativeAllocationByteCount = nativeAllocationByteCount; 15834cd7dbc90f93893f521dce32d8cd25c02a185a24Chris Craik 15844cd7dbc90f93893f521dce32d8cd25c02a185a24Chris Craik if (mNativeAllocationByteCount != 0) { 15854cd7dbc90f93893f521dce32d8cd25c02a185a24Chris Craik VMRuntime.getRuntime().registerNativeAllocation(mNativeAllocationByteCount); 15864cd7dbc90f93893f521dce32d8cd25c02a185a24Chris Craik } 158702890fd0f98b3b8d98baf0bda1ea906afd723d8bRomain Guy } 158802890fd0f98b3b8d98baf0bda1ea906afd723d8bRomain Guy 158902890fd0f98b3b8d98baf0bda1ea906afd723d8bRomain Guy @Override 1590e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy public void finalize() { 1591366a84056c9a695ee6702d9d30bf9f3b521ba7ccRomain Guy try { 1592366a84056c9a695ee6702d9d30bf9f3b521ba7ccRomain Guy super.finalize(); 1593366a84056c9a695ee6702d9d30bf9f3b521ba7ccRomain Guy } catch (Throwable t) { 1594366a84056c9a695ee6702d9d30bf9f3b521ba7ccRomain Guy // Ignore 1595366a84056c9a695ee6702d9d30bf9f3b521ba7ccRomain Guy } finally { 15964cd7dbc90f93893f521dce32d8cd25c02a185a24Chris Craik if (mNativeAllocationByteCount != 0) { 15974cd7dbc90f93893f521dce32d8cd25c02a185a24Chris Craik VMRuntime.getRuntime().registerNativeFree(mNativeAllocationByteCount); 15984cd7dbc90f93893f521dce32d8cd25c02a185a24Chris Craik } 1599366a84056c9a695ee6702d9d30bf9f3b521ba7ccRomain Guy nativeDestructor(mNativeBitmap); 16004018eb376383a9bbe2aa75a95cc6917ca72aa0b7John Reck mNativeBitmap = 0; 1601366a84056c9a695ee6702d9d30bf9f3b521ba7ccRomain Guy } 16029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16048cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 16059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //////////// native methods 16069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native Bitmap nativeCreate(int[] colors, int offset, 16089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int stride, int width, int height, 1609c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik int nativeConfig, boolean mutable); 161036bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat private static native Bitmap nativeCopy(long nativeSrcBitmap, int nativeConfig, 16119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean isMutable); 161236bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat private static native void nativeDestructor(long nativeBitmap); 161336bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat private static native boolean nativeRecycle(long nativeBitmap); 161436bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat private static native void nativeReconfigure(long nativeBitmap, int width, int height, 161517a8bfc38a565ae96f43d36b223779be840bb50cLeon Scroggins III int config, int allocSize, 161617a8bfc38a565ae96f43d36b223779be840bb50cLeon Scroggins III boolean isPremultiplied); 16179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 161836bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat private static native boolean nativeCompress(long nativeBitmap, int format, 16199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int quality, OutputStream stream, 16209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project byte[] tempStorage); 162136bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat private static native void nativeErase(long nativeBitmap, int color); 162236bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat private static native int nativeRowBytes(long nativeBitmap); 162336bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat private static native int nativeConfig(long nativeBitmap); 16248cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 162557ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III private static native int nativeGetPixel(long nativeBitmap, int x, int y); 162636bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat private static native void nativeGetPixels(long nativeBitmap, int[] pixels, 16271abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik int offset, int stride, int x, int y, 162857ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III int width, int height); 16298cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 163057ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III private static native void nativeSetPixel(long nativeBitmap, int x, int y, int color); 163136bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat private static native void nativeSetPixels(long nativeBitmap, int[] colors, 16321abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik int offset, int stride, int x, int y, 163357ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III int width, int height); 163436bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat private static native void nativeCopyPixelsToBuffer(long nativeBitmap, 16359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Buffer dst); 163636bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat private static native void nativeCopyPixelsFromBuffer(long nativeBitmap, Buffer src); 163736bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat private static native int nativeGenerationId(long nativeBitmap); 16389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native Bitmap nativeCreateFromParcel(Parcel p); 16409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // returns true on success 164136bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat private static native boolean nativeWriteToParcel(long nativeBitmap, 16429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean isMutable, 1643de0dfb7b65a02d4dd74c271b558adee0973fc267Dianne Hackborn int density, 16449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Parcel p); 16459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // returns a new bitmap built from the native bitmap's alpha, and the paint 164636bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat private static native Bitmap nativeExtractAlpha(long nativeBitmap, 164736bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat long nativePaint, 16489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] offsetXY); 16499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 165036bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat private static native void nativePrepareToDraw(long nativeBitmap); 165136bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat private static native boolean nativeHasAlpha(long nativeBitmap); 165257ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III private static native boolean nativeIsPremultiplied(long nativeBitmap); 165357ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III private static native void nativeSetPremultiplied(long nativeBitmap, 165457ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III boolean isPremul); 165557ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III private static native void nativeSetHasAlpha(long nativeBitmap, 165657ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III boolean hasAlpha, 165757ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III boolean requestPremul); 165836bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat private static native boolean nativeHasMipMap(long nativeBitmap); 165936bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat private static native void nativeSetHasMipMap(long nativeBitmap, boolean hasMipMap); 166036bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat private static native boolean nativeSameAs(long nativeBitmap0, long nativeBitmap1); 166136bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat 166236bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat /* package */ final long ni() { 16639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mNativeBitmap; 16649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 1666