Bitmap.java revision 775873a66a946fae2b0535abb51df9817bd1b20c
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 191c2bf03d1082fc6b7eb42cbd163c60c07cf2bcccTor Norbyeimport android.annotation.CheckResult; 2080756e38882720860db52f1fcc21fa1505a02abfTor Norbyeimport android.annotation.ColorInt; 21c054966b719c8a7255f7cf4120cca5050acb68bdAlan Viveretteimport android.annotation.NonNull; 229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Parcel; 238cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chenimport android.os.Parcelable; 240df3bd5594bbbbfbf6058ecb31e9b94a1cd22f7dJohn Reckimport android.os.Trace; 252784ff0af88128f66ae690b73d48fb7e4a211e68Dianne Hackbornimport android.util.DisplayMetrics; 2601a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reckimport android.util.Log; 27f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck 288cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chenimport java.io.OutputStream; 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.nio.Buffer; 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.nio.ByteBuffer; 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.nio.IntBuffer; 328cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chenimport java.nio.ShortBuffer; 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34775873a66a946fae2b0535abb51df9817bd1b20cRichard Uhlerimport libcore.util.NativeAllocationRegistry; 35775873a66a946fae2b0535abb51df9817bd1b20cRichard Uhler 369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic final class Bitmap implements Parcelable { 3701a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck private static final String TAG = "Bitmap"; 3801a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck 399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that the bitmap was created for an unknown pixel density. 419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4211ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @see Bitmap#getDensity() 4311ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @see Bitmap#setDensity(int) 449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4511ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn public static final int DENSITY_NONE = 0; 46f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck 47775873a66a946fae2b0535abb51df9817bd1b20cRichard Uhler // Estimated size of the Bitmap native allocation, not including 48775873a66a946fae2b0535abb51df9817bd1b20cRichard Uhler // pixel data. 49775873a66a946fae2b0535abb51df9817bd1b20cRichard Uhler private static final long NATIVE_ALLOCATION_SIZE = 32; 50775873a66a946fae2b0535abb51df9817bd1b20cRichard Uhler 51e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy /** 52e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy * Backing buffer for the Bitmap. 53e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy */ 54f29d5a5b211786248d0557157c304c5fff428bd4Derek Sollenberger private byte[] mBuffer; 55e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy 56f29ed28c7b878ef28058bc730715d0d32445bc57John Reck // Convenience for JNI access 57f29ed28c7b878ef28058bc730715d0d32445bc57John Reck private final long mNativePtr; 58e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy 599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private final boolean mIsMutable; 601abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik 611abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik /** 6257ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III * Represents whether the Bitmap's content is requested to be pre-multiplied. 631abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * Note that isPremultiplied() does not directly return this value, because 6457ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III * isPremultiplied() may never return true for a 565 Bitmap or a bitmap 6557ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III * without alpha. 661abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * 671abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * setPremultiplied() does directly set the value so that setConfig() and 681abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * setPremultiplied() aren't order dependent, despite being setters. 6957ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III * 7057ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III * The native bitmap's premultiplication state is kept up to date by 7157ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III * pushing down this preference for every config change. 721abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik */ 7357ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III private boolean mRequestPremultiplied; 748790be6de3644e332ec6a17c855da89ffc13a9bfLeon Scroggins III 7547cd8e921db73e894f94ec4729ade90da50996f5Chris Craik private byte[] mNinePatchChunk; // may be null 7647cd8e921db73e894f94ec4729ade90da50996f5Chris Craik private NinePatch.InsetStruct mNinePatchInsets; // may be null 771abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik private int mWidth; 781abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik private int mHeight; 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mRecycled; 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8111ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn // Package-scoped for fast access. 82dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn int mDensity = getDefaultDensity(); 839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8411ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn private static volatile Matrix sScaleMatrix; 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8696e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn private static volatile int sDefaultDensity = -1; 8702890fd0f98b3b8d98baf0bda1ea906afd723d8bRomain Guy 8896e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn /** 8996e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * For backwards compatibility, allows the app layer to change the default 9096e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * density when running old apps. 9196e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * @hide 9296e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn */ 9396e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn public static void setDefaultDensity(int density) { 9496e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn sDefaultDensity = density; 9596e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn } 963849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy 97f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck @SuppressWarnings("deprecation") 983849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy static int getDefaultDensity() { 9996e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn if (sDefaultDensity >= 0) { 10096e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn return sDefaultDensity; 10196e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn } 10296e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn sDefaultDensity = DisplayMetrics.DENSITY_DEVICE; 10396e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn return sDefaultDensity; 10496e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn } 105dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1079f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik * Private constructor that must received an already allocated native bitmap 1089f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik * int (pointer). 109ec4a50428d5f26a22df3edaf7e5b08f41d5cb54bAmith Yamasani */ 110f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck // called from JNI 11136bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat Bitmap(long nativeBitmap, byte[] buffer, int width, int height, int density, 11257ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III boolean isMutable, boolean requestPremultiplied, 11347cd8e921db73e894f94ec4729ade90da50996f5Chris Craik byte[] ninePatchChunk, NinePatch.InsetStruct ninePatchInsets) { 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (nativeBitmap == 0) { 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException("internal error: native bitmap is 0"); 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1178cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 1181abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik mWidth = width; 1191abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik mHeight = height; 1201abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik mIsMutable = isMutable; 12157ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III mRequestPremultiplied = requestPremultiplied; 122e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy mBuffer = buffer; 1234cd7dbc90f93893f521dce32d8cd25c02a185a24Chris Craik 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNinePatchChunk = ninePatchChunk; 12547cd8e921db73e894f94ec4729ade90da50996f5Chris Craik mNinePatchInsets = ninePatchInsets; 126de0dfb7b65a02d4dd74c271b558adee0973fc267Dianne Hackborn if (density >= 0) { 127de0dfb7b65a02d4dd74c271b558adee0973fc267Dianne Hackborn mDensity = density; 128de0dfb7b65a02d4dd74c271b558adee0973fc267Dianne Hackborn } 1294cd7dbc90f93893f521dce32d8cd25c02a185a24Chris Craik 130f29ed28c7b878ef28058bc730715d0d32445bc57John Reck mNativePtr = nativeBitmap; 131775873a66a946fae2b0535abb51df9817bd1b20cRichard Uhler long nativeSize = NATIVE_ALLOCATION_SIZE; 132775873a66a946fae2b0535abb51df9817bd1b20cRichard Uhler if (buffer == null) { 133775873a66a946fae2b0535abb51df9817bd1b20cRichard Uhler nativeSize += getByteCount(); 134775873a66a946fae2b0535abb51df9817bd1b20cRichard Uhler } 135775873a66a946fae2b0535abb51df9817bd1b20cRichard Uhler NativeAllocationRegistry registry = new NativeAllocationRegistry( 136775873a66a946fae2b0535abb51df9817bd1b20cRichard Uhler nativeGetNativeFinalizer(), nativeSize); 137775873a66a946fae2b0535abb51df9817bd1b20cRichard Uhler registry.registerNativeAllocation(this, nativeBitmap); 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1414c5efe9290543b723b76a8bd48518da1ae1dcb26Derek Sollenberger * Return the pointer to the native object. 1424c5efe9290543b723b76a8bd48518da1ae1dcb26Derek Sollenberger */ 1434c5efe9290543b723b76a8bd48518da1ae1dcb26Derek Sollenberger long getNativeInstance() { 1444c5efe9290543b723b76a8bd48518da1ae1dcb26Derek Sollenberger return mNativePtr; 1454c5efe9290543b723b76a8bd48518da1ae1dcb26Derek Sollenberger } 1464c5efe9290543b723b76a8bd48518da1ae1dcb26Derek Sollenberger 1474c5efe9290543b723b76a8bd48518da1ae1dcb26Derek Sollenberger /** 1481abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * Native bitmap has been reconfigured, so set premult and cached 1491abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * width/height values 1509f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik */ 151f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck // called from JNI 15257ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III void reinit(int width, int height, boolean requestPremultiplied) { 1531abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik mWidth = width; 1541abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik mHeight = height; 15557ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III mRequestPremultiplied = requestPremultiplied; 1569f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik } 1579f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik 1589f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik /** 15911ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * <p>Returns the density for this bitmap.</p> 1609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16196e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * <p>The default density is the same density as the current display, 16296e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * unless the current application does not support different screen 16396e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * densities in which case it is 16496e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * {@link android.util.DisplayMetrics#DENSITY_DEFAULT}. Note that 16596e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * compatibility mode is determined by the application that was initially 16696e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * loaded into a process -- applications that share the same process should 16796e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * all have the same compatibility, or ensure they explicitly set the 16896e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * density of their bitmaps appropriately.</p> 1699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 17096e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * @return A scaling factor of the default density or {@link #DENSITY_NONE} 1719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * if the scaling factor is unknown. 1729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 17311ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @see #setDensity(int) 174a53b828635fce8b6b2d3e3377d74d72070056623Dianne Hackborn * @see android.util.DisplayMetrics#DENSITY_DEFAULT 17511ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @see android.util.DisplayMetrics#densityDpi 17611ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @see #DENSITY_NONE 1779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 17811ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn public int getDensity() { 17901a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck if (mRecycled) { 18001a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck Log.w(TAG, "Called getDensity() on a recycle()'d bitmap! This is undefined behavior!"); 18101a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck } 18211ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn return mDensity; 1839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18611ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * <p>Specifies the density for this bitmap. When the bitmap is 18711ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * drawn to a Canvas that also has a density, it will be scaled 18811ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * appropriately.</p> 1899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19011ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @param density The density scaling factor to use with this bitmap or 19111ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * {@link #DENSITY_NONE} if the density is unknown. 1929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19311ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @see #getDensity() 194a53b828635fce8b6b2d3e3377d74d72070056623Dianne Hackborn * @see android.util.DisplayMetrics#DENSITY_DEFAULT 19511ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @see android.util.DisplayMetrics#densityDpi 19611ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @see #DENSITY_NONE 1979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19811ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn public void setDensity(int density) { 19911ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn mDensity = density; 2009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 201c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik 202c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik /** 203c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * <p>Modifies the bitmap to have a specified width, height, and {@link 204c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * Config}, without affecting the underlying allocation backing the bitmap. 205c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * Bitmap pixel data is not re-initialized for the new configuration.</p> 206c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * 207c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * <p>This method can be used to avoid allocating a new bitmap, instead 208c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * reusing an existing bitmap's allocation for a new configuration of equal 209c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * or lesser size. If the Bitmap's allocation isn't large enough to support 210c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * the new configuration, an IllegalArgumentException will be thrown and the 211c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * bitmap will not be modified.</p> 212c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * 213c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * <p>The result of {@link #getByteCount()} will reflect the new configuration, 214c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * while {@link #getAllocationByteCount()} will reflect that of the initial 215c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * configuration.</p> 216c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * 21717a8bfc38a565ae96f43d36b223779be840bb50cLeon Scroggins III * <p>Note: This may change this result of hasAlpha(). When converting to 565, 21817a8bfc38a565ae96f43d36b223779be840bb50cLeon Scroggins III * the new bitmap will always be considered opaque. When converting from 565, 21917a8bfc38a565ae96f43d36b223779be840bb50cLeon Scroggins III * the new bitmap will be considered non-opaque, and will respect the value 22017a8bfc38a565ae96f43d36b223779be840bb50cLeon Scroggins III * set by setPremultiplied().</p> 22117a8bfc38a565ae96f43d36b223779be840bb50cLeon Scroggins III * 2226d86e57bdadd56be160eb3e543cc53622cae46f2John Reck * <p>WARNING: This method should NOT be called on a bitmap currently in use 2236d86e57bdadd56be160eb3e543cc53622cae46f2John Reck * by the view system, Canvas, or the AndroidBitmap NDK API. It does not 2246d86e57bdadd56be160eb3e543cc53622cae46f2John Reck * make guarantees about how the underlying pixel buffer is remapped to the 2256d86e57bdadd56be160eb3e543cc53622cae46f2John Reck * new config, just that the allocation is reused. Additionally, the view 2266d86e57bdadd56be160eb3e543cc53622cae46f2John Reck * system does not account for bitmap properties being modifying during use, 2276d86e57bdadd56be160eb3e543cc53622cae46f2John Reck * e.g. while attached to drawables.</p> 2286d86e57bdadd56be160eb3e543cc53622cae46f2John Reck * 2296d86e57bdadd56be160eb3e543cc53622cae46f2John Reck * <p>In order to safely ensure that a Bitmap is no longer in use by the 2306d86e57bdadd56be160eb3e543cc53622cae46f2John Reck * View system it is necessary to wait for a draw pass to occur after 2316d86e57bdadd56be160eb3e543cc53622cae46f2John Reck * invalidate()'ing any view that had previously drawn the Bitmap in the last 2326d86e57bdadd56be160eb3e543cc53622cae46f2John Reck * draw pass due to hardware acceleration's caching of draw commands. As 2336d86e57bdadd56be160eb3e543cc53622cae46f2John Reck * an example, here is how this can be done for an ImageView: 2346d86e57bdadd56be160eb3e543cc53622cae46f2John Reck * <pre class="prettyprint"> 2356d86e57bdadd56be160eb3e543cc53622cae46f2John Reck * ImageView myImageView = ...; 2366d86e57bdadd56be160eb3e543cc53622cae46f2John Reck * final Bitmap myBitmap = ...; 2376d86e57bdadd56be160eb3e543cc53622cae46f2John Reck * myImageView.setImageDrawable(null); 2386d86e57bdadd56be160eb3e543cc53622cae46f2John Reck * myImageView.post(new Runnable() { 2396d86e57bdadd56be160eb3e543cc53622cae46f2John Reck * public void run() { 2406d86e57bdadd56be160eb3e543cc53622cae46f2John Reck * // myBitmap is now no longer in use by the ImageView 2416d86e57bdadd56be160eb3e543cc53622cae46f2John Reck * // and can be safely reconfigured. 2426d86e57bdadd56be160eb3e543cc53622cae46f2John Reck * myBitmap.reconfigure(...); 2436d86e57bdadd56be160eb3e543cc53622cae46f2John Reck * } 2446d86e57bdadd56be160eb3e543cc53622cae46f2John Reck * }); 2456d86e57bdadd56be160eb3e543cc53622cae46f2John Reck * </pre></p> 246c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * 247c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * @see #setWidth(int) 248c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * @see #setHeight(int) 249c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * @see #setConfig(Config) 250c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik */ 251c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik public void reconfigure(int width, int height, Config config) { 252c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik checkRecycled("Can't call reconfigure() on a recycled bitmap"); 253c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik if (width <= 0 || height <= 0) { 254c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik throw new IllegalArgumentException("width and height must be > 0"); 255c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik } 256c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik if (!isMutable()) { 2579c2cde0583d02ba7551877dbe7a5ecaee6defb56Chris Craik throw new IllegalStateException("only mutable bitmaps may be reconfigured"); 258c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik } 259c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik if (mBuffer == null) { 2601abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik throw new IllegalStateException("native-backed bitmaps may not be reconfigured"); 261c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik } 262c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik 263775873a66a946fae2b0535abb51df9817bd1b20cRichard Uhler nativeReconfigure(mNativePtr, width, height, config.nativeInt, 264f29ed28c7b878ef28058bc730715d0d32445bc57John Reck mBuffer.length, mRequestPremultiplied); 265c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik mWidth = width; 266c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik mHeight = height; 267c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik } 268c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik 269c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik /** 270c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * <p>Convenience method for calling {@link #reconfigure(int, int, Config)} 271c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * with the current height and config.</p> 272c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * 273c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * <p>WARNING: this method should not be used on bitmaps currently used by 274c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * the view system, see {@link #reconfigure(int, int, Config)} for more 275c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * details.</p> 276c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * 277c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * @see #reconfigure(int, int, Config) 278c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * @see #setHeight(int) 279c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * @see #setConfig(Config) 280c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik */ 281c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik public void setWidth(int width) { 282c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik reconfigure(width, getHeight(), getConfig()); 283c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik } 284c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik 285c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik /** 286c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * <p>Convenience method for calling {@link #reconfigure(int, int, Config)} 287c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * with the current width and config.</p> 288c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * 289c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * <p>WARNING: this method should not be used on bitmaps currently used by 290c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * the view system, see {@link #reconfigure(int, int, Config)} for more 291c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * details.</p> 292c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * 293c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * @see #reconfigure(int, int, Config) 294c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * @see #setWidth(int) 295c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * @see #setConfig(Config) 296c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik */ 297c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik public void setHeight(int height) { 298c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik reconfigure(getWidth(), height, getConfig()); 299c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik } 300c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik 301c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik /** 302c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * <p>Convenience method for calling {@link #reconfigure(int, int, Config)} 303c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * with the current height and width.</p> 304c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * 305c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * <p>WARNING: this method should not be used on bitmaps currently used by 306c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * the view system, see {@link #reconfigure(int, int, Config)} for more 307c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * details.</p> 308c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * 309c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * @see #reconfigure(int, int, Config) 310c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * @see #setWidth(int) 311c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * @see #setHeight(int) 312c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik */ 313c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik public void setConfig(Config config) { 314c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik reconfigure(getWidth(), getHeight(), config); 315c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik } 316c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik 3179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the nine patch chunk. 3199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 3209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param chunk The definition of the nine patch 3219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 3229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @hide 3239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setNinePatchChunk(byte[] chunk) { 3259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNinePatchChunk = chunk; 3269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3278cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 3289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 329a383b3f646cbc1fd870f2694d4fac24340834916Patrick Dubroy * Free the native object associated with this bitmap, and clear the 330a383b3f646cbc1fd870f2694d4fac24340834916Patrick Dubroy * reference to the pixel data. This will not free the pixel data synchronously; 331a383b3f646cbc1fd870f2694d4fac24340834916Patrick Dubroy * it simply allows it to be garbage collected if there are no other references. 332a383b3f646cbc1fd870f2694d4fac24340834916Patrick Dubroy * The bitmap is marked as "dead", meaning it will throw an exception if 333a383b3f646cbc1fd870f2694d4fac24340834916Patrick Dubroy * getPixels() or setPixels() is called, and will draw nothing. This operation 334a383b3f646cbc1fd870f2694d4fac24340834916Patrick Dubroy * cannot be reversed, so it should only be called if you are sure there are no 3359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * further uses for the bitmap. This is an advanced call, and normally need 3369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * not be called, since the normal GC process will free up this memory when 3379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * there are no more references to this bitmap. 3389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void recycle() { 340775873a66a946fae2b0535abb51df9817bd1b20cRichard Uhler if (!mRecycled && mNativePtr != 0) { 341775873a66a946fae2b0535abb51df9817bd1b20cRichard Uhler if (nativeRecycle(mNativePtr)) { 342547e66531d521eb1eadac87edb0f79f8c2f1bbe0Chet Haase // return value indicates whether native pixel object was actually recycled. 343547e66531d521eb1eadac87edb0f79f8c2f1bbe0Chet Haase // false indicates that it is still in use at the native level and these 344547e66531d521eb1eadac87edb0f79f8c2f1bbe0Chet Haase // objects should not be collected now. They will be collected later when the 345547e66531d521eb1eadac87edb0f79f8c2f1bbe0Chet Haase // Bitmap itself is collected. 346547e66531d521eb1eadac87edb0f79f8c2f1bbe0Chet Haase mBuffer = null; 347547e66531d521eb1eadac87edb0f79f8c2f1bbe0Chet Haase mNinePatchChunk = null; 348547e66531d521eb1eadac87edb0f79f8c2f1bbe0Chet Haase } 3499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycled = true; 3509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns true if this bitmap has been recycled. If so, then it is an error 3559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to try to access its pixels, and the bitmap will not draw. 3569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 3579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the bitmap has been recycled 3589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final boolean isRecycled() { 3609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mRecycled; 3619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3628cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 3639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3640bbae0836426ba2704e38e7f90a9d0ca502ab71dRomain Guy * Returns the generation ID of this bitmap. The generation ID changes 3650bbae0836426ba2704e38e7f90a9d0ca502ab71dRomain Guy * whenever the bitmap is modified. This can be used as an efficient way to 3660bbae0836426ba2704e38e7f90a9d0ca502ab71dRomain Guy * check if a bitmap has changed. 367f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck * 3680bbae0836426ba2704e38e7f90a9d0ca502ab71dRomain Guy * @return The current generation ID for this bitmap. 3690bbae0836426ba2704e38e7f90a9d0ca502ab71dRomain Guy */ 3700bbae0836426ba2704e38e7f90a9d0ca502ab71dRomain Guy public int getGenerationId() { 37101a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck if (mRecycled) { 37201a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck Log.w(TAG, "Called getGenerationId() on a recycle()'d bitmap! This is undefined behavior!"); 37301a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck } 374775873a66a946fae2b0535abb51df9817bd1b20cRichard Uhler return nativeGenerationId(mNativePtr); 3750bbae0836426ba2704e38e7f90a9d0ca502ab71dRomain Guy } 376f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck 3770bbae0836426ba2704e38e7f90a9d0ca502ab71dRomain Guy /** 3789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This is called by methods that want to throw an exception if the bitmap 3799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * has already been recycled. 3809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void checkRecycled(String errorMessage) { 3829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mRecycled) { 3839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalStateException(errorMessage); 3849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3868cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 3879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Common code for checking that x and y are >= 0 3899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 3909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x x coordinate to ensure is >= 0 3919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y y coordinate to ensure is >= 0 3929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static void checkXYSign(int x, int y) { 3949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (x < 0) { 3959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("x must be >= 0"); 3969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (y < 0) { 3989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("y must be >= 0"); 3999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Common code for checking that width and height are > 0 4049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param width width to ensure is > 0 4069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param height height to ensure is > 0 4079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static void checkWidthHeight(int width, int height) { 4099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (width <= 0) { 4109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("width must be > 0"); 4119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height <= 0) { 4139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("height must be > 0"); 4149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 417676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy /** 418676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * Possible bitmap configurations. A bitmap configuration describes 419676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * how pixels are stored. This affects the quality (color depth) as 420676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * well as the ability to display transparent/translucent colors. 421676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy */ 4229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public enum Config { 4239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // these native values must match up with the enum in SkBitmap.h 424676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy 425676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy /** 426676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * Each pixel is stored as a single translucency (alpha) channel. 427676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * This is very useful to efficiently store masks for instance. 428676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * No color information is stored. 429676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * With this configuration, each pixel requires 1 byte of memory. 430676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy */ 431b644a3b84521e2155a5af985a4d4ed305474e567Derek Sollenberger ALPHA_8 (1), 432676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy 433676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy /** 434676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * Each pixel is stored on 2 bytes and only the RGB channels are 435676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * encoded: red is stored with 5 bits of precision (32 possible 436676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * values), green is stored with 6 bits of precision (64 possible 437676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * values) and blue is stored with 5 bits of precision. 438f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck * 439676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * This configuration can produce slight visual artifacts depending 440676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * on the configuration of the source. For instance, without 441676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * dithering, the result might show a greenish tint. To get better 442676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * results dithering should be applied. 443f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck * 444676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * This configuration may be useful when using opaque bitmaps 445676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * that do not require high color fidelity. 446676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy */ 447b644a3b84521e2155a5af985a4d4ed305474e567Derek Sollenberger RGB_565 (3), 448676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy 449676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy /** 450676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * Each pixel is stored on 2 bytes. The three RGB color channels 451676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * and the alpha channel (translucency) are stored with a 4 bits 452676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * precision (16 possible values.) 453f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck * 454676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * This configuration is mostly useful if the application needs 455676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * to store translucency information but also needs to save 456676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * memory. 457f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck * 458676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * It is recommended to use {@link #ARGB_8888} instead of this 459676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * configuration. 46025ba1c86945a441428194d9ebcabbf31be75a45aRomain Guy * 461e8222dddaf2e3da14380101e818d4254899e0c0dChet Haase * Note: as of {@link android.os.Build.VERSION_CODES#KITKAT}, 46225ba1c86945a441428194d9ebcabbf31be75a45aRomain Guy * any bitmap created with this configuration will be created 46325ba1c86945a441428194d9ebcabbf31be75a45aRomain Guy * using {@link #ARGB_8888} instead. 464f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck * 465676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * @deprecated Because of the poor quality of this configuration, 466676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * it is advised to use {@link #ARGB_8888} instead. 467676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy */ 468676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy @Deprecated 469b644a3b84521e2155a5af985a4d4ed305474e567Derek Sollenberger ARGB_4444 (4), 470676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy 471676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy /** 472676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * Each pixel is stored on 4 bytes. Each channel (RGB and alpha 473676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * for translucency) is stored with 8 bits of precision (256 474676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * possible values.) 475f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck * 476676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * This configuration is very flexible and offers the best 477676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * quality. It should be used whenever possible. 478676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy */ 479b644a3b84521e2155a5af985a4d4ed305474e567Derek Sollenberger ARGB_8888 (5); 4809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 481676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy final int nativeInt; 482676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy 483676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy private static Config sConfigs[] = { 484b644a3b84521e2155a5af985a4d4ed305474e567Derek Sollenberger null, ALPHA_8, null, RGB_565, ARGB_4444, ARGB_8888 485676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy }; 486f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck 4879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Config(int ni) { 4889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this.nativeInt = ni; 4899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4908cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 491676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy static Config nativeToConfig(int ni) { 4929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return sConfigs[ni]; 4939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4958cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 4969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4973849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * <p>Copy the bitmap's pixels into the specified buffer (allocated by the 4989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * caller). An exception is thrown if the buffer is not large enough to 4999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * hold all of the pixels (taking into account the number of bytes per 5009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * pixel) or if the Buffer subclass is not one of the support types 5013849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * (ByteBuffer, ShortBuffer, IntBuffer).</p> 5023849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * <p>The content of the bitmap is copied into the buffer as-is. This means 5033849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * that if this bitmap stores its pixels pre-multiplied 5043849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * (see {@link #isPremultiplied()}, the values in the buffer will also be 5053849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * pre-multiplied.</p> 5061f58497e7dbab1b16e97c73b65559b852d0c2803Romain Guy * <p>After this method returns, the current position of the buffer is 5071f58497e7dbab1b16e97c73b65559b852d0c2803Romain Guy * updated: the position is incremented by the number of elements written 5081f58497e7dbab1b16e97c73b65559b852d0c2803Romain Guy * in the buffer.</p> 5099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void copyPixelsToBuffer(Buffer dst) { 5119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int elements = dst.remaining(); 5129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int shift; 5139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (dst instanceof ByteBuffer) { 5149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project shift = 0; 5159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (dst instanceof ShortBuffer) { 5169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project shift = 1; 5179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (dst instanceof IntBuffer) { 5189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project shift = 2; 5199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 5209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException("unsupported Buffer subclass"); 5219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5228cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 5239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long bufferSize = (long)elements << shift; 524f7f9d9c39df22ad6929f001f07588469f77e8bf5Jesse Wilson long pixelSize = getByteCount(); 5258cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 5269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (bufferSize < pixelSize) { 5279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException("Buffer not large enough for pixels"); 5289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5298cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 530775873a66a946fae2b0535abb51df9817bd1b20cRichard Uhler nativeCopyPixelsToBuffer(mNativePtr, dst); 5318cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 5329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // now update the buffer's position 5339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = dst.position(); 5349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position += pixelSize >> shift; 5359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dst.position(position); 5369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5393849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * <p>Copy the pixels from the buffer, beginning at the current position, 5409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * overwriting the bitmap's pixels. The data in the buffer is not changed 5419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * in any way (unlike setPixels(), which converts from unpremultipled 32bit 5423849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * to whatever the bitmap's native format is.</p> 5431f58497e7dbab1b16e97c73b65559b852d0c2803Romain Guy * <p>After this method returns, the current position of the buffer is 5441f58497e7dbab1b16e97c73b65559b852d0c2803Romain Guy * updated: the position is incremented by the number of elements read from 5451f58497e7dbab1b16e97c73b65559b852d0c2803Romain Guy * the buffer. If you need to read the bitmap from the buffer again you must 5461f58497e7dbab1b16e97c73b65559b852d0c2803Romain Guy * first rewind the buffer.</p> 5479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void copyPixelsFromBuffer(Buffer src) { 5499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRecycled("copyPixelsFromBuffer called on recycled bitmap"); 5508cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 5519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int elements = src.remaining(); 5529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int shift; 5539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (src instanceof ByteBuffer) { 5549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project shift = 0; 5559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (src instanceof ShortBuffer) { 5569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project shift = 1; 5579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (src instanceof IntBuffer) { 5589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project shift = 2; 5599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 5609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException("unsupported Buffer subclass"); 5619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5628cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 5633849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy long bufferBytes = (long) elements << shift; 564f7f9d9c39df22ad6929f001f07588469f77e8bf5Jesse Wilson long bitmapBytes = getByteCount(); 5658cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 5669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (bufferBytes < bitmapBytes) { 5679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException("Buffer not large enough for pixels"); 5689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5698cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 570775873a66a946fae2b0535abb51df9817bd1b20cRichard Uhler nativeCopyPixelsFromBuffer(mNativePtr, src); 57155adc145d460be4b21de0d77be1f6076c3591e3cMarco Nelissen 57255adc145d460be4b21de0d77be1f6076c3591e3cMarco Nelissen // now update the buffer's position 57355adc145d460be4b21de0d77be1f6076c3591e3cMarco Nelissen int position = src.position(); 57455adc145d460be4b21de0d77be1f6076c3591e3cMarco Nelissen position += bitmapBytes >> shift; 57555adc145d460be4b21de0d77be1f6076c3591e3cMarco Nelissen src.position(position); 5769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5778cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 5789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Tries to make a new bitmap based on the dimensions of this bitmap, 5809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * setting the new bitmap's config to the one specified, and then copying 5819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this bitmap's pixels into the new bitmap. If the conversion is not 58296e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * supported, or the allocator fails, then this returns NULL. The returned 58396e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * bitmap initially has the same density as the original. 5849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 5859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param config The desired config for the resulting bitmap 5869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param isMutable True if the resulting bitmap should be mutable (i.e. 5879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * its pixels can be modified) 5889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the new bitmap, or null if the copy could not be made. 5899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Bitmap copy(Config config, boolean isMutable) { 5919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRecycled("Can't copy a recycled bitmap"); 592775873a66a946fae2b0535abb51df9817bd1b20cRichard Uhler Bitmap b = nativeCopy(mNativePtr, config.nativeInt, isMutable); 59396e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn if (b != null) { 59457ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III b.setPremultiplied(mRequestPremultiplied); 59596e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn b.mDensity = mDensity; 59696e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn } 59796e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn return b; 5989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60002d9102b3bdebac6989c2b7d12c080fb7c1f8e2bBrad Fitzpatrick /** 601721ae5fec5f1fd4f93aa2a361a0ac298e15ce353Riley Andrews * Creates a new immutable bitmap backed by ashmem which can efficiently 602721ae5fec5f1fd4f93aa2a361a0ac298e15ce353Riley Andrews * be passed between processes. 603721ae5fec5f1fd4f93aa2a361a0ac298e15ce353Riley Andrews * 604721ae5fec5f1fd4f93aa2a361a0ac298e15ce353Riley Andrews * @hide 605721ae5fec5f1fd4f93aa2a361a0ac298e15ce353Riley Andrews */ 606721ae5fec5f1fd4f93aa2a361a0ac298e15ce353Riley Andrews public Bitmap createAshmemBitmap() { 607721ae5fec5f1fd4f93aa2a361a0ac298e15ce353Riley Andrews checkRecycled("Can't copy a recycled bitmap"); 608775873a66a946fae2b0535abb51df9817bd1b20cRichard Uhler Bitmap b = nativeCopyAshmem(mNativePtr); 609721ae5fec5f1fd4f93aa2a361a0ac298e15ce353Riley Andrews if (b != null) { 610721ae5fec5f1fd4f93aa2a361a0ac298e15ce353Riley Andrews b.setPremultiplied(mRequestPremultiplied); 611721ae5fec5f1fd4f93aa2a361a0ac298e15ce353Riley Andrews b.mDensity = mDensity; 612721ae5fec5f1fd4f93aa2a361a0ac298e15ce353Riley Andrews } 613721ae5fec5f1fd4f93aa2a361a0ac298e15ce353Riley Andrews return b; 614721ae5fec5f1fd4f93aa2a361a0ac298e15ce353Riley Andrews } 615721ae5fec5f1fd4f93aa2a361a0ac298e15ce353Riley Andrews 616721ae5fec5f1fd4f93aa2a361a0ac298e15ce353Riley Andrews /** 617f12f6f058f169ead83a546a1c3a51e49452a30b3Romain Guy * Creates a new bitmap, scaled from an existing bitmap, when possible. If the 618f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck * specified width and height are the same as the current width and height of 6199f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik * the source bitmap, the source bitmap is returned and no new bitmap is 620f12f6f058f169ead83a546a1c3a51e49452a30b3Romain Guy * created. 62102d9102b3bdebac6989c2b7d12c080fb7c1f8e2bBrad Fitzpatrick * 62202d9102b3bdebac6989c2b7d12c080fb7c1f8e2bBrad Fitzpatrick * @param src The source bitmap. 62302d9102b3bdebac6989c2b7d12c080fb7c1f8e2bBrad Fitzpatrick * @param dstWidth The new bitmap's desired width. 62402d9102b3bdebac6989c2b7d12c080fb7c1f8e2bBrad Fitzpatrick * @param dstHeight The new bitmap's desired height. 62502d9102b3bdebac6989c2b7d12c080fb7c1f8e2bBrad Fitzpatrick * @param filter true if the source should be filtered. 626f12f6f058f169ead83a546a1c3a51e49452a30b3Romain Guy * @return The new scaled bitmap or the source bitmap if no scaling is required. 627790552b240c05d58407f7c14acba656b2e85c523Romain Guy * @throws IllegalArgumentException if width is <= 0, or height is <= 0 62802d9102b3bdebac6989c2b7d12c080fb7c1f8e2bBrad Fitzpatrick */ 629f12f6f058f169ead83a546a1c3a51e49452a30b3Romain Guy public static Bitmap createScaledBitmap(Bitmap src, int dstWidth, int dstHeight, 630f12f6f058f169ead83a546a1c3a51e49452a30b3Romain Guy boolean filter) { 6319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Matrix m; 6329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project synchronized (Bitmap.class) { 6339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // small pool of just 1 matrix 6349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project m = sScaleMatrix; 6359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sScaleMatrix = null; 6369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (m == null) { 6399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project m = new Matrix(); 6409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6418cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 6429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int width = src.getWidth(); 6439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = src.getHeight(); 6449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float sx = dstWidth / (float)width; 6459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float sy = dstHeight / (float)height; 6469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project m.setScale(sx, sy); 6479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Bitmap b = Bitmap.createBitmap(src, 0, 0, width, height, m, filter); 6489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project synchronized (Bitmap.class) { 6509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // do we need to check for null? why not just assign everytime? 6519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sScaleMatrix == null) { 6529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sScaleMatrix = m; 6539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6568cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen return b; 6579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6588cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 6599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns an immutable bitmap from the source bitmap. The new bitmap may 66196e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * be the same object as source, or a copy may have been made. It is 66296e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * initialized with the same density as the original bitmap. 6639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static Bitmap createBitmap(Bitmap src) { 6659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return createBitmap(src, 0, 0, src.getWidth(), src.getHeight()); 6669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns an immutable bitmap from the specified subset of the source 6709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * bitmap. The new bitmap may be the same object as source, or a copy may 671f12f6f058f169ead83a546a1c3a51e49452a30b3Romain Guy * have been made. It is initialized with the same density as the original 672f12f6f058f169ead83a546a1c3a51e49452a30b3Romain Guy * bitmap. 6739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param source The bitmap we are subsetting 6759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x The x coordinate of the first pixel in source 6769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y The y coordinate of the first pixel in source 6779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param width The number of pixels in each row 6789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param height The number of rows 679f12f6f058f169ead83a546a1c3a51e49452a30b3Romain Guy * @return A copy of a subset of the source bitmap or the source bitmap itself. 680790552b240c05d58407f7c14acba656b2e85c523Romain Guy * @throws IllegalArgumentException if the x, y, width, height values are 681790552b240c05d58407f7c14acba656b2e85c523Romain Guy * outside of the dimensions of the source bitmap, or width is <= 0, 682790552b240c05d58407f7c14acba656b2e85c523Romain Guy * or height is <= 0 6839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static Bitmap createBitmap(Bitmap source, int x, int y, int width, int height) { 6859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return createBitmap(source, x, y, width, height, null, false); 6869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6878cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 6889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns an immutable bitmap from subset of the source bitmap, 690f12f6f058f169ead83a546a1c3a51e49452a30b3Romain Guy * transformed by the optional matrix. The new bitmap may be the 691f12f6f058f169ead83a546a1c3a51e49452a30b3Romain Guy * same object as source, or a copy may have been made. It is 69296e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * initialized with the same density as the original bitmap. 693f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck * 694f12f6f058f169ead83a546a1c3a51e49452a30b3Romain Guy * If the source bitmap is immutable and the requested subset is the 695f12f6f058f169ead83a546a1c3a51e49452a30b3Romain Guy * same as the source bitmap itself, then the source bitmap is 696f12f6f058f169ead83a546a1c3a51e49452a30b3Romain Guy * returned and no new bitmap is created. 6979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param source The bitmap we are subsetting 6999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x The x coordinate of the first pixel in source 7009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y The y coordinate of the first pixel in source 7019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param width The number of pixels in each row 7029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param height The number of rows 70360b88edea7132ddce90f2dced07c6706f1502270Ken Shirriff * @param m Optional matrix to be applied to the pixels 7049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param filter true if the source should be filtered. 7059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Only applies if the matrix contains more than just 7069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * translation. 7079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A bitmap that represents the specified subset of source 7089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IllegalArgumentException if the x, y, width, height values are 709790552b240c05d58407f7c14acba656b2e85c523Romain Guy * outside of the dimensions of the source bitmap, or width is <= 0, 710790552b240c05d58407f7c14acba656b2e85c523Romain Guy * or height is <= 0 7119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static Bitmap createBitmap(Bitmap source, int x, int y, int width, int height, 7139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Matrix m, boolean filter) { 7149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkXYSign(x, y); 7169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkWidthHeight(width, height); 7179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (x + width > source.getWidth()) { 7189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("x + width must be <= bitmap.width()"); 7199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (y + height > source.getHeight()) { 7219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("y + height must be <= bitmap.height()"); 7229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // check if we can just return our argument unchanged 7259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!source.isMutable() && x == 0 && y == 0 && width == source.getWidth() && 7269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height == source.getHeight() && (m == null || m.isIdentity())) { 7279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return source; 7289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7298cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 7309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int neww = width; 7319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int newh = height; 7329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Canvas canvas = new Canvas(); 7339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Bitmap bitmap; 7349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Paint paint; 7359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect srcR = new Rect(x, y, x + width, y + height); 7379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RectF dstR = new RectF(0, 0, width, height); 7389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 739feeea8f07c854e6b0ae2fec3aa2d239c17f32b5bRomain Guy Config newConfig = Config.ARGB_8888; 740feeea8f07c854e6b0ae2fec3aa2d239c17f32b5bRomain Guy final Config config = source.getConfig(); 741feeea8f07c854e6b0ae2fec3aa2d239c17f32b5bRomain Guy // GIF files generate null configs, assume ARGB_8888 742feeea8f07c854e6b0ae2fec3aa2d239c17f32b5bRomain Guy if (config != null) { 743feeea8f07c854e6b0ae2fec3aa2d239c17f32b5bRomain Guy switch (config) { 744feeea8f07c854e6b0ae2fec3aa2d239c17f32b5bRomain Guy case RGB_565: 745feeea8f07c854e6b0ae2fec3aa2d239c17f32b5bRomain Guy newConfig = Config.RGB_565; 746feeea8f07c854e6b0ae2fec3aa2d239c17f32b5bRomain Guy break; 747feeea8f07c854e6b0ae2fec3aa2d239c17f32b5bRomain Guy case ALPHA_8: 748feeea8f07c854e6b0ae2fec3aa2d239c17f32b5bRomain Guy newConfig = Config.ALPHA_8; 749feeea8f07c854e6b0ae2fec3aa2d239c17f32b5bRomain Guy break; 750676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy //noinspection deprecation 751feeea8f07c854e6b0ae2fec3aa2d239c17f32b5bRomain Guy case ARGB_4444: 752feeea8f07c854e6b0ae2fec3aa2d239c17f32b5bRomain Guy case ARGB_8888: 753feeea8f07c854e6b0ae2fec3aa2d239c17f32b5bRomain Guy default: 754feeea8f07c854e6b0ae2fec3aa2d239c17f32b5bRomain Guy newConfig = Config.ARGB_8888; 755feeea8f07c854e6b0ae2fec3aa2d239c17f32b5bRomain Guy break; 756feeea8f07c854e6b0ae2fec3aa2d239c17f32b5bRomain Guy } 757feeea8f07c854e6b0ae2fec3aa2d239c17f32b5bRomain Guy } 758d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy 7599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (m == null || m.isIdentity()) { 760d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy bitmap = createBitmap(neww, newh, newConfig, source.hasAlpha()); 7619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint = null; // not needed 7629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 763d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy final boolean transformed = !m.rectStaysRect(); 764d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy 7659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RectF deviceR = new RectF(); 7669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project m.mapRect(deviceR, dstR); 767d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy 7689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project neww = Math.round(deviceR.width()); 7699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newh = Math.round(deviceR.height()); 770d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy 771d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy bitmap = createBitmap(neww, newh, transformed ? Config.ARGB_8888 : newConfig, 772d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy transformed || source.hasAlpha()); 773d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy 7749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.translate(-deviceR.left, -deviceR.top); 7759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.concat(m); 776d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy 7779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint = new Paint(); 7789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint.setFilterBitmap(filter); 779d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy if (transformed) { 7809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint.setAntiAlias(true); 7819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7838790be6de3644e332ec6a17c855da89ffc13a9bfLeon Scroggins III 7849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The new bitmap was created from a known bitmap source so assume that 78511ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn // they use the same density 78611ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn bitmap.mDensity = source.mDensity; 78757ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III bitmap.setHasAlpha(source.hasAlpha()); 78857ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III bitmap.setPremultiplied(source.mRequestPremultiplied); 7898790be6de3644e332ec6a17c855da89ffc13a9bfLeon Scroggins III 79096e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn canvas.setBitmap(bitmap); 79196e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn canvas.drawBitmap(source, srcR, dstR, paint); 7926311d0a079702b29984c0d31937345be105e1a5eDianne Hackborn canvas.setBitmap(null); 7939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return bitmap; 7959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7968cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 7979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 79896e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * Returns a mutable bitmap with the specified width and height. Its 79996e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * initial density is as per {@link #getDensity}. 8009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 8019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param width The width of the bitmap 8029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param height The height of the bitmap 8039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param config The bitmap config to create. 8049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IllegalArgumentException if the width or height are <= 0 8059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static Bitmap createBitmap(int width, int height, Config config) { 807d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy return createBitmap(width, height, config, true); 808d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy } 809d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy 810d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy /** 811d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy * Returns a mutable bitmap with the specified width and height. Its 812dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * initial density is determined from the given {@link DisplayMetrics}. 813dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * 814dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param display Display metrics for the display this bitmap will be 815dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * drawn on. 816dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param width The width of the bitmap 817dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param height The height of the bitmap 818dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param config The bitmap config to create. 819dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @throws IllegalArgumentException if the width or height are <= 0 820dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn */ 821dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn public static Bitmap createBitmap(DisplayMetrics display, int width, 822dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn int height, Config config) { 823dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn return createBitmap(display, width, height, config, true); 824dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn } 825dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn 826dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn /** 827dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * Returns a mutable bitmap with the specified width and height. Its 828d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy * initial density is as per {@link #getDensity}. 829d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy * 830d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy * @param width The width of the bitmap 831d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy * @param height The height of the bitmap 832d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy * @param config The bitmap config to create. 833d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy * @param hasAlpha If the bitmap is ARGB_8888 this flag can be used to mark the 834d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy * bitmap as opaque. Doing so will clear the bitmap in black 835f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck * instead of transparent. 836f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck * 837d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy * @throws IllegalArgumentException if the width or height are <= 0 838d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy */ 839d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy private static Bitmap createBitmap(int width, int height, Config config, boolean hasAlpha) { 840dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn return createBitmap(null, width, height, config, hasAlpha); 841dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn } 842dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn 843dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn /** 844dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * Returns a mutable bitmap with the specified width and height. Its 845dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * initial density is determined from the given {@link DisplayMetrics}. 846dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * 847dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param display Display metrics for the display this bitmap will be 848dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * drawn on. 849dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param width The width of the bitmap 850dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param height The height of the bitmap 851dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param config The bitmap config to create. 852dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param hasAlpha If the bitmap is ARGB_8888 this flag can be used to mark the 853dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * bitmap as opaque. Doing so will clear the bitmap in black 854f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck * instead of transparent. 855f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck * 856dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @throws IllegalArgumentException if the width or height are <= 0 857dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn */ 858dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn private static Bitmap createBitmap(DisplayMetrics display, int width, int height, 859dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn Config config, boolean hasAlpha) { 860e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy if (width <= 0 || height <= 0) { 861e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy throw new IllegalArgumentException("width and height must be > 0"); 862e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy } 8639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Bitmap bm = nativeCreate(null, 0, width, width, height, config.nativeInt, true); 864dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn if (display != null) { 865dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn bm.mDensity = display.densityDpi; 866dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn } 8678790be6de3644e332ec6a17c855da89ffc13a9bfLeon Scroggins III bm.setHasAlpha(hasAlpha); 868d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy if (config == Config.ARGB_8888 && !hasAlpha) { 869775873a66a946fae2b0535abb51df9817bd1b20cRichard Uhler nativeErase(bm.mNativePtr, 0xff000000); 870d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy } 8713b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy // No need to initialize the bitmap to zeroes with other configs; 8723b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy // it is backed by a VM byte array which is by definition preinitialized 8733b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy // to all zeroes. 8749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return bm; 8759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8768cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 8779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns a immutable bitmap with the specified width and height, with each 87996e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * pixel value set to the corresponding value in the colors array. Its 88096e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * initial density is as per {@link #getDensity}. 8819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 8829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param colors Array of {@link Color} used to initialize the pixels. 8839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param offset Number of values to skip before the first color in the 8849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * array of colors. 8859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param stride Number of colors in the array between rows (must be >= 8869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * width or <= -width). 8879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param width The width of the bitmap 8889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param height The height of the bitmap 8899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param config The bitmap config to create. If the config does not 8909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * support per-pixel alpha (e.g. RGB_565), then the alpha 8919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * bytes in the colors[] will be ignored (assumed to be FF) 8929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IllegalArgumentException if the width or height are <= 0, or if 8939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the color array's length is less than the number of pixels. 8949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static Bitmap createBitmap(int colors[], int offset, int stride, 8969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int width, int height, Config config) { 897dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn return createBitmap(null, colors, offset, stride, width, height, config); 898dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn } 899dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn 900dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn /** 901dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * Returns a immutable bitmap with the specified width and height, with each 902dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * pixel value set to the corresponding value in the colors array. Its 903dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * initial density is determined from the given {@link DisplayMetrics}. 904dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * 905dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param display Display metrics for the display this bitmap will be 906dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * drawn on. 907dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param colors Array of {@link Color} used to initialize the pixels. 908dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param offset Number of values to skip before the first color in the 909dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * array of colors. 910dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param stride Number of colors in the array between rows (must be >= 911dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * width or <= -width). 912dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param width The width of the bitmap 913dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param height The height of the bitmap 914dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param config The bitmap config to create. If the config does not 915dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * support per-pixel alpha (e.g. RGB_565), then the alpha 916dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * bytes in the colors[] will be ignored (assumed to be FF) 917dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @throws IllegalArgumentException if the width or height are <= 0, or if 918dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * the color array's length is less than the number of pixels. 919dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn */ 920dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn public static Bitmap createBitmap(DisplayMetrics display, int colors[], 921dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn int offset, int stride, int width, int height, Config config) { 9229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkWidthHeight(width, height); 9249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (Math.abs(stride) < width) { 9259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("abs(stride) must be >= width"); 9269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int lastScanline = offset + (height - 1) * stride; 9289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int length = colors.length; 9299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (offset < 0 || (offset + width > length) || lastScanline < 0 || 9309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (lastScanline + width > length)) { 9319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new ArrayIndexOutOfBoundsException(); 9329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 933e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy if (width <= 0 || height <= 0) { 934e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy throw new IllegalArgumentException("width and height must be > 0"); 935e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy } 936dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn Bitmap bm = nativeCreate(colors, offset, stride, width, height, 9379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project config.nativeInt, false); 938dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn if (display != null) { 939dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn bm.mDensity = display.densityDpi; 940dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn } 941dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn return bm; 9429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 9459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns a immutable bitmap with the specified width and height, with each 94696e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * pixel value set to the corresponding value in the colors array. Its 94796e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * initial density is as per {@link #getDensity}. 9489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 9499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param colors Array of {@link Color} used to initialize the pixels. 9509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This array must be at least as large as width * height. 9519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param width The width of the bitmap 9529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param height The height of the bitmap 9539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param config The bitmap config to create. If the config does not 9549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * support per-pixel alpha (e.g. RGB_565), then the alpha 9559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * bytes in the colors[] will be ignored (assumed to be FF) 9569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IllegalArgumentException if the width or height are <= 0, or if 9579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the color array's length is less than the number of pixels. 9589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 9599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static Bitmap createBitmap(int colors[], int width, int height, Config config) { 960dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn return createBitmap(null, colors, 0, width, width, height, config); 961dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn } 962dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn 963dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn /** 964dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * Returns a immutable bitmap with the specified width and height, with each 965dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * pixel value set to the corresponding value in the colors array. Its 966dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * initial density is determined from the given {@link DisplayMetrics}. 967dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * 968dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param display Display metrics for the display this bitmap will be 969dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * drawn on. 970dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param colors Array of {@link Color} used to initialize the pixels. 971dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * This array must be at least as large as width * height. 972dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param width The width of the bitmap 973dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param height The height of the bitmap 974dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param config The bitmap config to create. If the config does not 975dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * support per-pixel alpha (e.g. RGB_565), then the alpha 976dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * bytes in the colors[] will be ignored (assumed to be FF) 977dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @throws IllegalArgumentException if the width or height are <= 0, or if 978dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * the color array's length is less than the number of pixels. 979dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn */ 980dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn public static Bitmap createBitmap(DisplayMetrics display, int colors[], 981dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn int width, int height, Config config) { 982dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn return createBitmap(display, colors, 0, width, width, height, config); 9839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 9869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns an optional array of private data, used by the UI system for 9879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * some bitmaps. Not intended to be called by applications. 9889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 9899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public byte[] getNinePatchChunk() { 9909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mNinePatchChunk; 9919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 994c054966b719c8a7255f7cf4120cca5050acb68bdAlan Viverette * Populates a rectangle with the bitmap's optical insets. 995c054966b719c8a7255f7cf4120cca5050acb68bdAlan Viverette * 996c054966b719c8a7255f7cf4120cca5050acb68bdAlan Viverette * @param outInsets Rect to populate with optical insets 997ec4a50428d5f26a22df3edaf7e5b08f41d5cb54bAmith Yamasani * @hide 998ec4a50428d5f26a22df3edaf7e5b08f41d5cb54bAmith Yamasani */ 999c054966b719c8a7255f7cf4120cca5050acb68bdAlan Viverette public void getOpticalInsets(@NonNull Rect outInsets) { 100047cd8e921db73e894f94ec4729ade90da50996f5Chris Craik if (mNinePatchInsets == null) { 1001c054966b719c8a7255f7cf4120cca5050acb68bdAlan Viverette outInsets.setEmpty(); 1002c054966b719c8a7255f7cf4120cca5050acb68bdAlan Viverette } else { 100347cd8e921db73e894f94ec4729ade90da50996f5Chris Craik outInsets.set(mNinePatchInsets.opticalRect); 1004c054966b719c8a7255f7cf4120cca5050acb68bdAlan Viverette } 1005ec4a50428d5f26a22df3edaf7e5b08f41d5cb54bAmith Yamasani } 1006ec4a50428d5f26a22df3edaf7e5b08f41d5cb54bAmith Yamasani 100747cd8e921db73e894f94ec4729ade90da50996f5Chris Craik /** @hide */ 100847cd8e921db73e894f94ec4729ade90da50996f5Chris Craik public NinePatch.InsetStruct getNinePatchInsets() { 100947cd8e921db73e894f94ec4729ade90da50996f5Chris Craik return mNinePatchInsets; 101047cd8e921db73e894f94ec4729ade90da50996f5Chris Craik } 101147cd8e921db73e894f94ec4729ade90da50996f5Chris Craik 1012ec4a50428d5f26a22df3edaf7e5b08f41d5cb54bAmith Yamasani /** 10139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Specifies the known formats a bitmap can be compressed into 10149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public enum CompressFormat { 10169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project JPEG (0), 10172305ac9e4a262ed09fd034ae417e9b1dda4c0ccbVikas Arora PNG (1), 10182305ac9e4a262ed09fd034ae417e9b1dda4c0ccbVikas Arora WEBP (2); 10199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project CompressFormat(int nativeInt) { 10219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this.nativeInt = nativeInt; 10229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int nativeInt; 10249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Number of bytes of temp storage we use for communicating between the 10289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * native compressor and the java OutputStream. 10299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private final static int WORKING_COMPRESS_STORAGE = 4096; 10319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Write a compressed version of the bitmap to the specified outputstream. 10349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * If this returns true, the bitmap can be reconstructed by passing a 10359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * corresponding inputstream to BitmapFactory.decodeStream(). Note: not 10369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * all Formats support all bitmap configs directly, so it is possible that 10379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the returned bitmap from BitmapFactory could be in a different bitdepth, 10389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * and/or may have lost per-pixel alpha (e.g. JPEG only supports opaque 10399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * pixels). 10409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 10419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param format The format of the compressed image 10429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param quality Hint to the compressor, 0-100. 0 meaning compress for 10439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * small size, 100 meaning compress for max quality. Some 10449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * formats, like PNG which is lossless, will ignore the 10459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * quality setting 10469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param stream The outputstream to write the compressed data. 10479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if successfully compressed to the specified stream. 10489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean compress(CompressFormat format, int quality, OutputStream stream) { 10509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRecycled("Can't compress a recycled bitmap"); 10519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // do explicit check before calling the native method 10529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (stream == null) { 10539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new NullPointerException(); 10549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (quality < 0 || quality > 100) { 10569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("quality must be 0..100"); 10579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10580df3bd5594bbbbfbf6058ecb31e9b94a1cd22f7dJohn Reck Trace.traceBegin(Trace.TRACE_TAG_RESOURCES, "Bitmap.compress"); 1059775873a66a946fae2b0535abb51df9817bd1b20cRichard Uhler boolean result = nativeCompress(mNativePtr, format.nativeInt, 1060f29ed28c7b878ef28058bc730715d0d32445bc57John Reck quality, stream, new byte[WORKING_COMPRESS_STORAGE]); 10610df3bd5594bbbbfbf6058ecb31e9b94a1cd22f7dJohn Reck Trace.traceEnd(Trace.TRACE_TAG_RESOURCES); 10620df3bd5594bbbbfbf6058ecb31e9b94a1cd22f7dJohn Reck return result; 10639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10648cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 10659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1066ff236f5fc1a088b1210d37a67b0e88b06c0fbdb2Newton Allen * Returns true if the bitmap is marked as mutable (i.e. can be drawn into) 10679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final boolean isMutable() { 10699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mIsMutable; 10709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10723849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy /** 10733849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * <p>Indicates whether pixels stored in this bitmaps are stored pre-multiplied. 10743849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * When a pixel is pre-multiplied, the RGB components have been multiplied by 10753849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * the alpha component. For instance, if the original color is a 50% 1076f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck * translucent red <code>(128, 255, 0, 0)</code>, the pre-multiplied form is 10773849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * <code>(128, 128, 0, 0)</code>.</p> 1078f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck * 10793849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * <p>This method always returns false if {@link #getConfig()} is 10804ff0cf4b83605bff630c4e6f1fabe4f72a3f93a1Romain Guy * {@link Bitmap.Config#RGB_565}.</p> 1081f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck * 108257ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III * <p>The return value is undefined if {@link #getConfig()} is 108357ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III * {@link Bitmap.Config#ALPHA_8}.</p> 108457ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III * 10854ff0cf4b83605bff630c4e6f1fabe4f72a3f93a1Romain Guy * <p>This method only returns true if {@link #hasAlpha()} returns true. 10864ff0cf4b83605bff630c4e6f1fabe4f72a3f93a1Romain Guy * A bitmap with no alpha channel can be used both as a pre-multiplied and 10874ff0cf4b83605bff630c4e6f1fabe4f72a3f93a1Romain Guy * as a non pre-multiplied bitmap.</p> 10881abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * 10891abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * <p>Only pre-multiplied bitmaps may be drawn by the view system or 10901abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * {@link Canvas}. If a non-pre-multiplied bitmap with an alpha channel is 10911abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * drawn to a Canvas, a RuntimeException will be thrown.</p> 10921abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * 10933849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * @return true if the underlying pixels have been pre-multiplied, false 10943849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * otherwise 10951abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * 10961abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * @see Bitmap#setPremultiplied(boolean) 10971abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * @see BitmapFactory.Options#inPremultiplied 10983849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy */ 10993849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy public final boolean isPremultiplied() { 110001a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck if (mRecycled) { 110101a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck Log.w(TAG, "Called isPremultiplied() on a recycle()'d bitmap! This is undefined behavior!"); 110201a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck } 1103775873a66a946fae2b0535abb51df9817bd1b20cRichard Uhler return nativeIsPremultiplied(mNativePtr); 11041abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik } 11051abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik 11061abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik /** 11071abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * Sets whether the bitmap should treat its data as pre-multiplied. 11081abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * 11091abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * <p>Bitmaps are always treated as pre-multiplied by the view system and 11101abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * {@link Canvas} for performance reasons. Storing un-pre-multiplied data in 11111abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * a Bitmap (through {@link #setPixel}, {@link #setPixels}, or {@link 11121abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * BitmapFactory.Options#inPremultiplied BitmapFactory.Options.inPremultiplied}) 11131abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * can lead to incorrect blending if drawn by the framework.</p> 11141abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * 11151abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * <p>This method will not affect the behavior of a bitmap without an alpha 11161abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * channel, or if {@link #hasAlpha()} returns false.</p> 11171abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * 1118889a1ddd00b74933d5f7daa651d98133bcb034baBen Murdoch * <p>Calling {@link #createBitmap} or {@link #createScaledBitmap} with a source 11198790be6de3644e332ec6a17c855da89ffc13a9bfLeon Scroggins III * Bitmap whose colors are not pre-multiplied may result in a RuntimeException, 11208790be6de3644e332ec6a17c855da89ffc13a9bfLeon Scroggins III * since those functions require drawing the source, which is not supported for 11218790be6de3644e332ec6a17c855da89ffc13a9bfLeon Scroggins III * un-pre-multiplied Bitmaps.</p> 11228790be6de3644e332ec6a17c855da89ffc13a9bfLeon Scroggins III * 11231abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * @see Bitmap#isPremultiplied() 11241abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * @see BitmapFactory.Options#inPremultiplied 11251abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik */ 11261abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik public final void setPremultiplied(boolean premultiplied) { 11273e776dee3e8af646cdcfb7a60e0e301c99f05293John Reck checkRecycled("setPremultiplied called on a recycled bitmap"); 112857ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III mRequestPremultiplied = premultiplied; 1129775873a66a946fae2b0535abb51df9817bd1b20cRichard Uhler nativeSetPremultiplied(mNativePtr, premultiplied); 11303849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy } 11313849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy 11329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** Returns the bitmap's width */ 11339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final int getWidth() { 113401a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck if (mRecycled) { 113501a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck Log.w(TAG, "Called getWidth() on a recycle()'d bitmap! This is undefined behavior!"); 113601a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck } 11371abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik return mWidth; 11389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** Returns the bitmap's height */ 11419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final int getHeight() { 114201a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck if (mRecycled) { 114301a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck Log.w(TAG, "Called getHeight() on a recycle()'d bitmap! This is undefined behavior!"); 114401a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck } 11451abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik return mHeight; 11469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11478cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 11489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 114911ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * Convenience for calling {@link #getScaledWidth(int)} with the target 115011ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * density of the given {@link Canvas}. 11519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11522784ff0af88128f66ae690b73d48fb7e4a211e68Dianne Hackborn public int getScaledWidth(Canvas canvas) { 115311ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn return scaleFromDensity(getWidth(), mDensity, canvas.mDensity); 11542784ff0af88128f66ae690b73d48fb7e4a211e68Dianne Hackborn } 11552784ff0af88128f66ae690b73d48fb7e4a211e68Dianne Hackborn 11562784ff0af88128f66ae690b73d48fb7e4a211e68Dianne Hackborn /** 115711ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * Convenience for calling {@link #getScaledHeight(int)} with the target 115811ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * density of the given {@link Canvas}. 11592784ff0af88128f66ae690b73d48fb7e4a211e68Dianne Hackborn */ 11602784ff0af88128f66ae690b73d48fb7e4a211e68Dianne Hackborn public int getScaledHeight(Canvas canvas) { 116111ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn return scaleFromDensity(getHeight(), mDensity, canvas.mDensity); 116211ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn } 116311ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn 116411ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn /** 116511ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * Convenience for calling {@link #getScaledWidth(int)} with the target 116611ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * density of the given {@link DisplayMetrics}. 116711ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn */ 116811ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn public int getScaledWidth(DisplayMetrics metrics) { 116911ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn return scaleFromDensity(getWidth(), mDensity, metrics.densityDpi); 117011ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn } 117111ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn 117211ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn /** 117311ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * Convenience for calling {@link #getScaledHeight(int)} with the target 117411ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * density of the given {@link DisplayMetrics}. 117511ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn */ 117611ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn public int getScaledHeight(DisplayMetrics metrics) { 117711ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn return scaleFromDensity(getHeight(), mDensity, metrics.densityDpi); 11782784ff0af88128f66ae690b73d48fb7e4a211e68Dianne Hackborn } 11792784ff0af88128f66ae690b73d48fb7e4a211e68Dianne Hackborn 11802784ff0af88128f66ae690b73d48fb7e4a211e68Dianne Hackborn /** 11812784ff0af88128f66ae690b73d48fb7e4a211e68Dianne Hackborn * Convenience method that returns the width of this bitmap divided 11822784ff0af88128f66ae690b73d48fb7e4a211e68Dianne Hackborn * by the density scale factor. 11832784ff0af88128f66ae690b73d48fb7e4a211e68Dianne Hackborn * 118411ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @param targetDensity The density of the target canvas of the bitmap. 11852784ff0af88128f66ae690b73d48fb7e4a211e68Dianne Hackborn * @return The scaled width of this bitmap, according to the density scale factor. 11862784ff0af88128f66ae690b73d48fb7e4a211e68Dianne Hackborn */ 118711ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn public int getScaledWidth(int targetDensity) { 118811ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn return scaleFromDensity(getWidth(), mDensity, targetDensity); 11899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Convenience method that returns the height of this bitmap divided 11939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * by the density scale factor. 11949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 119511ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @param targetDensity The density of the target canvas of the bitmap. 11969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The scaled height of this bitmap, according to the density scale factor. 11979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 119811ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn public int getScaledHeight(int targetDensity) { 119911ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn return scaleFromDensity(getHeight(), mDensity, targetDensity); 120011ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn } 1201f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck 120211ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn /** 120311ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @hide 120411ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn */ 120511ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn static public int scaleFromDensity(int size, int sdensity, int tdensity) { 12060b68477f8287fe5ddac1beb1c9d0811ded034dadRomain Guy if (sdensity == DENSITY_NONE || tdensity == DENSITY_NONE || sdensity == tdensity) { 120711ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn return size; 12082784ff0af88128f66ae690b73d48fb7e4a211e68Dianne Hackborn } 1209f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck 121011ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn // Scale by tdensity / sdensity, rounding up. 1211366a84056c9a695ee6702d9d30bf9f3b521ba7ccRomain Guy return ((size * tdensity) + (sdensity >> 1)) / sdensity; 12129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1213f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck 12149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Return the number of bytes between rows in the bitmap's pixels. Note that 12169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this refers to the pixels as stored natively by the bitmap. If you call 12179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * getPixels() or setPixels(), then the pixels are uniformly treated as 12189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 32bit values, packed according to the Color class. 12199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1220e8222dddaf2e3da14380101e818d4254899e0c0dChet Haase * <p>As of {@link android.os.Build.VERSION_CODES#KITKAT}, this method 12219f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik * should not be used to calculate the memory usage of the bitmap. Instead, 12229f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik * see {@link #getAllocationByteCount()}. 12239f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik * 12249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return number of bytes between rows of the native bitmap pixels. 12259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final int getRowBytes() { 122701a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck if (mRecycled) { 122801a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck Log.w(TAG, "Called getRowBytes() on a recycle()'d bitmap! This is undefined behavior!"); 122901a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck } 1230775873a66a946fae2b0535abb51df9817bd1b20cRichard Uhler return nativeRowBytes(mNativePtr); 12319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12328cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 12339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12349f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik * Returns the minimum number of bytes that can be used to store this bitmap's pixels. 12359f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik * 1236e8222dddaf2e3da14380101e818d4254899e0c0dChet Haase * <p>As of {@link android.os.Build.VERSION_CODES#KITKAT}, the result of this method can 12379f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik * no longer be used to determine memory usage of a bitmap. See {@link 1238c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * #getAllocationByteCount()}.</p> 1239f7f9d9c39df22ad6929f001f07588469f77e8bf5Jesse Wilson */ 1240f7f9d9c39df22ad6929f001f07588469f77e8bf5Jesse Wilson public final int getByteCount() { 1241f7f9d9c39df22ad6929f001f07588469f77e8bf5Jesse Wilson // int result permits bitmaps up to 46,340 x 46,340 1242f7f9d9c39df22ad6929f001f07588469f77e8bf5Jesse Wilson return getRowBytes() * getHeight(); 1243f7f9d9c39df22ad6929f001f07588469f77e8bf5Jesse Wilson } 1244f7f9d9c39df22ad6929f001f07588469f77e8bf5Jesse Wilson 1245f7f9d9c39df22ad6929f001f07588469f77e8bf5Jesse Wilson /** 12469f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik * Returns the size of the allocated memory used to store this bitmap's pixels. 12479f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik * 12489f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik * <p>This can be larger than the result of {@link #getByteCount()} if a bitmap is reused to 1249c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * decode other bitmaps of smaller size, or by manual reconfiguration. See {@link 1250c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * #reconfigure(int, int, Config)}, {@link #setWidth(int)}, {@link #setHeight(int)}, {@link 1251c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * #setConfig(Bitmap.Config)}, and {@link BitmapFactory.Options#inBitmap 1252c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * BitmapFactory.Options.inBitmap}. If a bitmap is not modified in this way, this value will be 1253c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * the same as that returned by {@link #getByteCount()}.</p> 1254c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * 1255c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * <p>This value will not change over the lifetime of a Bitmap.</p> 12569f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik * 1257c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * @see #reconfigure(int, int, Config) 12589f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik */ 12599f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik public final int getAllocationByteCount() { 1260222f2ad294c9046b62af5e059f8b409aec044ce9Chris Craik if (mBuffer == null) { 1261222f2ad294c9046b62af5e059f8b409aec044ce9Chris Craik // native backed bitmaps don't support reconfiguration, 1262222f2ad294c9046b62af5e059f8b409aec044ce9Chris Craik // so alloc size is always content size 1263222f2ad294c9046b62af5e059f8b409aec044ce9Chris Craik return getByteCount(); 1264222f2ad294c9046b62af5e059f8b409aec044ce9Chris Craik } 12659f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik return mBuffer.length; 12669f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik } 12679f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik 12689f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik /** 12699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * If the bitmap's internal config is in one of the public formats, return 12709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * that config, otherwise return null. 12719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final Config getConfig() { 127301a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck if (mRecycled) { 127401a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck Log.w(TAG, "Called getConfig() on a recycle()'d bitmap! This is undefined behavior!"); 127501a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck } 1276775873a66a946fae2b0535abb51df9817bd1b20cRichard Uhler return Config.nativeToConfig(nativeConfig(mNativePtr)); 12779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1279a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed /** Returns true if the bitmap's config supports per-pixel alpha, and 1280a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed * if the pixels may contain non-opaque alpha values. For some configs, 1281a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed * this is always false (e.g. RGB_565), since they do not support per-pixel 1282a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed * alpha. However, for configs that do, the bitmap may be flagged to be 1283a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed * known that all of its pixels are opaque. In this case hasAlpha() will 1284a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed * also return false. If a config such as ARGB_8888 is not so flagged, 1285a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed * it will return true by default. 1286a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed */ 12879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final boolean hasAlpha() { 128801a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck if (mRecycled) { 128901a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck Log.w(TAG, "Called hasAlpha() on a recycle()'d bitmap! This is undefined behavior!"); 129001a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck } 1291775873a66a946fae2b0535abb51df9817bd1b20cRichard Uhler return nativeHasAlpha(mNativePtr); 12929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1295a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed * Tell the bitmap if all of the pixels are known to be opaque (false) 1296a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed * or if some of the pixels may contain non-opaque alpha values (true). 1297366a84056c9a695ee6702d9d30bf9f3b521ba7ccRomain Guy * Note, for some configs (e.g. RGB_565) this call is ignored, since it 1298366a84056c9a695ee6702d9d30bf9f3b521ba7ccRomain Guy * does not support per-pixel alpha values. 1299a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed * 1300a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed * This is meant as a drawing hint, as in some cases a bitmap that is known 1301a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed * to be opaque can take a faster drawing case than one that may have 1302a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed * non-opaque per-pixel alpha values. 1303a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed */ 1304a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed public void setHasAlpha(boolean hasAlpha) { 13053e776dee3e8af646cdcfb7a60e0e301c99f05293John Reck checkRecycled("setHasAlpha called on a recycled bitmap"); 1306775873a66a946fae2b0535abb51df9817bd1b20cRichard Uhler nativeSetHasAlpha(mNativePtr, hasAlpha, mRequestPremultiplied); 1307a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed } 1308a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed 1309a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed /** 1310713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * Indicates whether the renderer responsible for drawing this 1311713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * bitmap should attempt to use mipmaps when this bitmap is drawn 1312713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * scaled down. 1313f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck * 1314713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * If you know that you are going to draw this bitmap at less than 1315713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * 50% of its original size, you may be able to obtain a higher 1316713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * quality 1317f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck * 1318713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * This property is only a suggestion that can be ignored by the 1319713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * renderer. It is not guaranteed to have any effect. 1320f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck * 1321713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * @return true if the renderer should attempt to use mipmaps, 1322713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * false otherwise 1323f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck * 1324713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * @see #setHasMipMap(boolean) 1325713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy */ 1326713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy public final boolean hasMipMap() { 132701a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck if (mRecycled) { 132801a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck Log.w(TAG, "Called hasMipMap() on a recycle()'d bitmap! This is undefined behavior!"); 132901a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck } 1330775873a66a946fae2b0535abb51df9817bd1b20cRichard Uhler return nativeHasMipMap(mNativePtr); 1331713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy } 1332713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy 1333713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy /** 1334713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * Set a hint for the renderer responsible for drawing this bitmap 1335713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * indicating that it should attempt to use mipmaps when this bitmap 1336713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * is drawn scaled down. 1337713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * 1338713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * If you know that you are going to draw this bitmap at less than 1339713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * 50% of its original size, you may be able to obtain a higher 1340713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * quality by turning this property on. 1341f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck * 1342713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * Note that if the renderer respects this hint it might have to 1343713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * allocate extra memory to hold the mipmap levels for this bitmap. 1344713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * 1345713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * This property is only a suggestion that can be ignored by the 1346713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * renderer. It is not guaranteed to have any effect. 1347713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * 1348713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * @param hasMipMap indicates whether the renderer should attempt 1349713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * to use mipmaps 1350713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * 1351713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * @see #hasMipMap() 1352713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy */ 1353713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy public final void setHasMipMap(boolean hasMipMap) { 13543e776dee3e8af646cdcfb7a60e0e301c99f05293John Reck checkRecycled("setHasMipMap called on a recycled bitmap"); 1355775873a66a946fae2b0535abb51df9817bd1b20cRichard Uhler nativeSetHasMipMap(mNativePtr, hasMipMap); 1356713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy } 1357713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy 1358713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy /** 13599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fills the bitmap's pixels with the specified {@link Color}. 13609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IllegalStateException if the bitmap is not mutable. 13629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 136380756e38882720860db52f1fcc21fa1505a02abfTor Norbye public void eraseColor(@ColorInt int c) { 13649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRecycled("Can't erase a recycled bitmap"); 13659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!isMutable()) { 13669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalStateException("cannot erase immutable bitmaps"); 13679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1368775873a66a946fae2b0535abb51df9817bd1b20cRichard Uhler nativeErase(mNativePtr, c); 13699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the {@link Color} at the specified location. Throws an exception 13739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * if x or y are out of bounds (negative or >= to the width or height 13743849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * respectively). The returned color is a non-premultiplied ARGB value. 13759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x The x coordinate (0...width-1) of the pixel to return 13779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y The y coordinate (0...height-1) of the pixel to return 13789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The argb {@link Color} at the specified coordinate 13799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IllegalArgumentException if x, y exceed the bitmap's bounds 13809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 138180756e38882720860db52f1fcc21fa1505a02abfTor Norbye @ColorInt 13829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getPixel(int x, int y) { 13839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRecycled("Can't call getPixel() on a recycled bitmap"); 13849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkPixelAccess(x, y); 1385775873a66a946fae2b0535abb51df9817bd1b20cRichard Uhler return nativeGetPixel(mNativePtr, x, y); 13869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13878cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 13889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns in pixels[] a copy of the data in the bitmap. Each value is 13909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * a packed int representing a {@link Color}. The stride parameter allows 13919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the caller to allow for gaps in the returned pixels array between 13929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * rows. For normal packed results, just pass width for the stride value. 13933849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * The returned colors are non-premultiplied ARGB values. 13949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param pixels The array to receive the bitmap's colors 13969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param offset The first index to write into pixels[] 13979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param stride The number of entries in pixels[] to skip between 13989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * rows (must be >= bitmap's width). Can be negative. 13999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x The x coordinate of the first pixel to read from 14009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bitmap 14019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y The y coordinate of the first pixel to read from 14029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bitmap 14039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param width The number of pixels to read from each row 14049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param height The number of rows to read 14053849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * 14069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IllegalArgumentException if x, y, width, height exceed the 14079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * bounds of the bitmap, or if abs(stride) < width. 14089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws ArrayIndexOutOfBoundsException if the pixels array is too small 14099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to receive the specified number of pixels. 14109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 141180756e38882720860db52f1fcc21fa1505a02abfTor Norbye public void getPixels(@ColorInt int[] pixels, int offset, int stride, 14129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int x, int y, int width, int height) { 14139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRecycled("Can't call getPixels() on a recycled bitmap"); 14149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (width == 0 || height == 0) { 14159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; // nothing to do 14169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkPixelsAccess(x, y, width, height, offset, stride, pixels); 1418775873a66a946fae2b0535abb51df9817bd1b20cRichard Uhler nativeGetPixels(mNativePtr, pixels, offset, stride, 141957ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III x, y, width, height); 14209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14218cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 14229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Shared code to check for illegal arguments passed to getPixel() 14249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * or setPixel() 1425f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck * 14269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x x coordinate of the pixel 14279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y y coordinate of the pixel 14289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void checkPixelAccess(int x, int y) { 14309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkXYSign(x, y); 14319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (x >= getWidth()) { 14329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("x must be < bitmap.width()"); 14339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (y >= getHeight()) { 14359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("y must be < bitmap.height()"); 14369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Shared code to check for illegal arguments passed to getPixels() 14419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * or setPixels() 14429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x left edge of the area of pixels to access 14449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y top edge of the area of pixels to access 14459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param width width of the area of pixels to access 14469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param height height of the area of pixels to access 14479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param offset offset into pixels[] array 14489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param stride number of elements in pixels[] between each logical row 14499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param pixels array to hold the area of pixels being accessed 14509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void checkPixelsAccess(int x, int y, int width, int height, 14529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int offset, int stride, int pixels[]) { 14539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkXYSign(x, y); 14549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (width < 0) { 14559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("width must be >= 0"); 14569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height < 0) { 14589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("height must be >= 0"); 14599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (x + width > getWidth()) { 14619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException( 14629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "x + width must be <= bitmap.width()"); 14639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (y + height > getHeight()) { 14659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException( 14669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "y + height must be <= bitmap.height()"); 14679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (Math.abs(stride) < width) { 14699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("abs(stride) must be >= width"); 14709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int lastScanline = offset + (height - 1) * stride; 14729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int length = pixels.length; 14739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (offset < 0 || (offset + width > length) 14749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project || lastScanline < 0 14759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project || (lastScanline + width > length)) { 14769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new ArrayIndexOutOfBoundsException(); 14779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14798cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 14809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14813849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * <p>Write the specified {@link Color} into the bitmap (assuming it is 14823849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * mutable) at the x,y coordinate. The color must be a 14833849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * non-premultiplied ARGB value.</p> 14849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x The x coordinate of the pixel to replace (0...width-1) 14869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y The y coordinate of the pixel to replace (0...height-1) 14873849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * @param color The ARGB color to write into the bitmap 14883849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * 14899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IllegalStateException if the bitmap is not mutable 14909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IllegalArgumentException if x, y are outside of the bitmap's 14919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * bounds. 14929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 149380756e38882720860db52f1fcc21fa1505a02abfTor Norbye public void setPixel(int x, int y, @ColorInt int color) { 14949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRecycled("Can't call setPixel() on a recycled bitmap"); 14959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!isMutable()) { 14969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalStateException(); 14979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkPixelAccess(x, y); 1499775873a66a946fae2b0535abb51df9817bd1b20cRichard Uhler nativeSetPixel(mNativePtr, x, y, color); 15009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15018cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 15029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15033849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * <p>Replace pixels in the bitmap with the colors in the array. Each element 15043849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * in the array is a packed int prepresenting a non-premultiplied ARGB 15053849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * {@link Color}.</p> 15069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param pixels The colors to write to the bitmap 15089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param offset The index of the first color to read from pixels[] 15099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param stride The number of colors in pixels[] to skip between rows. 15109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Normally this value will be the same as the width of 15119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bitmap, but it can be larger (or negative). 15129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x The x coordinate of the first pixel to write to in 15139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bitmap. 15149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y The y coordinate of the first pixel to write to in 15159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bitmap. 15169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param width The number of colors to copy from pixels[] per row 15179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param height The number of rows to write to the bitmap 15183849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * 15199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IllegalStateException if the bitmap is not mutable 15209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IllegalArgumentException if x, y, width, height are outside of 15219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bitmap's bounds. 15229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws ArrayIndexOutOfBoundsException if the pixels array is too small 15239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to receive the specified number of pixels. 15249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 152580756e38882720860db52f1fcc21fa1505a02abfTor Norbye public void setPixels(@ColorInt int[] pixels, int offset, int stride, 15263849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy int x, int y, int width, int height) { 15279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRecycled("Can't call setPixels() on a recycled bitmap"); 15289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!isMutable()) { 15299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalStateException(); 15309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (width == 0 || height == 0) { 15329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; // nothing to do 15339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkPixelsAccess(x, y, width, height, offset, stride, pixels); 1535775873a66a946fae2b0535abb51df9817bd1b20cRichard Uhler nativeSetPixels(mNativePtr, pixels, offset, stride, 153657ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III x, y, width, height); 15379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15388cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 15399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final Parcelable.Creator<Bitmap> CREATOR 15409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project = new Parcelable.Creator<Bitmap>() { 15419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rebuilds a bitmap previously stored with writeToParcel(). 15439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param p Parcel object to read the bitmap from 15459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return a new bitmap created from the data in the parcel 15469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Bitmap createFromParcel(Parcel p) { 15489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Bitmap bm = nativeCreateFromParcel(p); 15499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (bm == null) { 15509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException("Failed to unparcel Bitmap"); 15519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return bm; 15539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Bitmap[] newArray(int size) { 15559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new Bitmap[size]; 15569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }; 15589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * No special parcel contents. 15619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int describeContents() { 1563b6377170960d40e66858d8b4d335a95eac773762Bart Sears return 0; 15649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Write the bitmap and its pixels to the parcel. The bitmap can be 15689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * rebuilt from the parcel by calling CREATOR.createFromParcel(). 15699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param p Parcel object to write the bitmap data into 15709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void writeToParcel(Parcel p, int flags) { 15729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRecycled("Can't parcel a recycled bitmap"); 1573775873a66a946fae2b0535abb51df9817bd1b20cRichard Uhler if (!nativeWriteToParcel(mNativePtr, mIsMutable, mDensity, p)) { 15749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException("native writeToParcel failed"); 15759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns a new bitmap that captures the alpha values of the original. 15809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This may be drawn with Canvas.drawBitmap(), where the color(s) will be 15819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * taken from the paint that is passed to the draw call. 15829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return new bitmap containing the alpha channel of the original bitmap. 15849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15851c2bf03d1082fc6b7eb42cbd163c60c07cf2bcccTor Norbye @CheckResult 15869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Bitmap extractAlpha() { 15879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return extractAlpha(null, null); 15889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15898cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 15909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns a new bitmap that captures the alpha values of the original. 15929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * These values may be affected by the optional Paint parameter, which 15939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * can contain its own alpha, and may also contain a MaskFilter which 15949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * could change the actual dimensions of the resulting bitmap (e.g. 15959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * a blur maskfilter might enlarge the resulting bitmap). If offsetXY 15969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is not null, it returns the amount to offset the returned bitmap so 15979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * that it will logically align with the original. For example, if the 15989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * paint contains a blur of radius 2, then offsetXY[] would contains 15999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * -2, -2, so that drawing the alpha bitmap offset by (-2, -2) and then 16009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * drawing the original would result in the blur visually aligning with 16019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the original. 1602f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck * 160396e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * <p>The initial density of the returned bitmap is the same as the original's. 1604f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck * 16059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint Optional paint used to modify the alpha values in the 16069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * resulting bitmap. Pass null for default behavior. 16079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param offsetXY Optional array that returns the X (index 0) and Y 16089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (index 1) offset needed to position the returned bitmap 16099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * so that it visually lines up with the original. 16109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return new bitmap containing the (optionally modified by paint) alpha 16119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * channel of the original bitmap. This may be drawn with 16129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Canvas.drawBitmap(), where the color(s) will be taken from the 16139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * paint that is passed to the draw call. 16149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16151c2bf03d1082fc6b7eb42cbd163c60c07cf2bcccTor Norbye @CheckResult 16169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Bitmap extractAlpha(Paint paint, int[] offsetXY) { 16179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRecycled("Can't extractAlpha on a recycled bitmap"); 1618dfba4d3d11bbf47dff45f94d61d4d97510b3034aDerek Sollenberger long nativePaint = paint != null ? paint.getNativeInstance() : 0; 1619775873a66a946fae2b0535abb51df9817bd1b20cRichard Uhler Bitmap bm = nativeExtractAlpha(mNativePtr, nativePaint, offsetXY); 16209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (bm == null) { 16219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException("Failed to extractAlpha on Bitmap"); 16229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 162396e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn bm.mDensity = mDensity; 16249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return bm; 16259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16278cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen /** 162876d1e01d5e65c4631c827831e98ad4e300d99eabMike Reed * Given another bitmap, return true if it has the same dimensions, config, 162976d1e01d5e65c4631c827831e98ad4e300d99eabMike Reed * and pixel data as this bitmap. If any of those differ, return false. 163076d1e01d5e65c4631c827831e98ad4e300d99eabMike Reed * If other is null, return false. 163176d1e01d5e65c4631c827831e98ad4e300d99eabMike Reed */ 163276d1e01d5e65c4631c827831e98ad4e300d99eabMike Reed public boolean sameAs(Bitmap other) { 16339298c5414172344f2462beda70e624af5f774483John Reck checkRecycled("Can't call sameAs on a recycled bitmap!"); 16343df4869a77bdeb72d5810bbcf7819ed1b8dd0ec7John Reck if (this == other) return true; 16353df4869a77bdeb72d5810bbcf7819ed1b8dd0ec7John Reck if (other == null) return false; 16369298c5414172344f2462beda70e624af5f774483John Reck if (other.isRecycled()) { 16379298c5414172344f2462beda70e624af5f774483John Reck throw new IllegalArgumentException("Can't compare to a recycled bitmap!"); 16389298c5414172344f2462beda70e624af5f774483John Reck } 1639775873a66a946fae2b0535abb51df9817bd1b20cRichard Uhler return nativeSameAs(mNativePtr, other.mNativePtr); 164076d1e01d5e65c4631c827831e98ad4e300d99eabMike Reed } 164176d1e01d5e65c4631c827831e98ad4e300d99eabMike Reed 164276d1e01d5e65c4631c827831e98ad4e300d99eabMike Reed /** 16438cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen * Rebuilds any caches associated with the bitmap that are used for 16448cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen * drawing it. In the case of purgeable bitmaps, this call will attempt to 16458cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen * ensure that the pixels have been decoded. 16468cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen * If this is called on more than one bitmap in sequence, the priority is 16478cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen * given in LRU order (i.e. the last bitmap called will be given highest 16488cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen * priority). 16498cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen * 16508cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen * For bitmaps with no associated caches, this call is effectively a no-op, 16518cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen * and therefore is harmless. 16528cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen */ 16538cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen public void prepareToDraw() { 1654f29ed28c7b878ef28058bc730715d0d32445bc57John Reck // TODO: Consider having this start an async upload? 1655f29ed28c7b878ef28058bc730715d0d32445bc57John Reck // With inPurgeable no-op'd there's currently no use for this 1656f29ed28c7b878ef28058bc730715d0d32445bc57John Reck // method, but it could have interesting future uses. 1657ad57442fd00e7fd7f1885d23372ec5c85e176820John Reck checkRecycled("Can't prepareToDraw on a recycled bitmap!"); 1658f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck } 1659f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck 1660c6e2e8ff474ae44bab5b9eb665851118abd27b68John Reck /** 1661c6e2e8ff474ae44bab5b9eb665851118abd27b68John Reck * Refs the underlying SkPixelRef and returns a pointer to it. 1662c6e2e8ff474ae44bab5b9eb665851118abd27b68John Reck * 1663c6e2e8ff474ae44bab5b9eb665851118abd27b68John Reck * @hide 1664c6e2e8ff474ae44bab5b9eb665851118abd27b68John Reck * */ 1665c6e2e8ff474ae44bab5b9eb665851118abd27b68John Reck public final long refSkPixelRef() { 1666ad57442fd00e7fd7f1885d23372ec5c85e176820John Reck checkRecycled("Can't refSkPixelRef on a recycled bitmap!"); 1667f29ed28c7b878ef28058bc730715d0d32445bc57John Reck return nativeRefPixelRef(mNativePtr); 1668c6e2e8ff474ae44bab5b9eb665851118abd27b68John Reck } 1669c6e2e8ff474ae44bab5b9eb665851118abd27b68John Reck 16709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //////////// native methods 16719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native Bitmap nativeCreate(int[] colors, int offset, 16739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int stride, int width, int height, 1674c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik int nativeConfig, boolean mutable); 167536bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat private static native Bitmap nativeCopy(long nativeSrcBitmap, int nativeConfig, 16769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean isMutable); 1677721ae5fec5f1fd4f93aa2a361a0ac298e15ce353Riley Andrews private static native Bitmap nativeCopyAshmem(long nativeSrcBitmap); 1678775873a66a946fae2b0535abb51df9817bd1b20cRichard Uhler private static native long nativeGetNativeFinalizer(); 167936bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat private static native boolean nativeRecycle(long nativeBitmap); 168036bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat private static native void nativeReconfigure(long nativeBitmap, int width, int height, 168117a8bfc38a565ae96f43d36b223779be840bb50cLeon Scroggins III int config, int allocSize, 168217a8bfc38a565ae96f43d36b223779be840bb50cLeon Scroggins III boolean isPremultiplied); 16839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 168436bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat private static native boolean nativeCompress(long nativeBitmap, int format, 16859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int quality, OutputStream stream, 16869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project byte[] tempStorage); 168736bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat private static native void nativeErase(long nativeBitmap, int color); 168836bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat private static native int nativeRowBytes(long nativeBitmap); 168936bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat private static native int nativeConfig(long nativeBitmap); 16908cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 169157ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III private static native int nativeGetPixel(long nativeBitmap, int x, int y); 169236bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat private static native void nativeGetPixels(long nativeBitmap, int[] pixels, 16931abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik int offset, int stride, int x, int y, 169457ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III int width, int height); 16958cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 169657ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III private static native void nativeSetPixel(long nativeBitmap, int x, int y, int color); 169736bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat private static native void nativeSetPixels(long nativeBitmap, int[] colors, 16981abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik int offset, int stride, int x, int y, 169957ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III int width, int height); 170036bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat private static native void nativeCopyPixelsToBuffer(long nativeBitmap, 17019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Buffer dst); 170236bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat private static native void nativeCopyPixelsFromBuffer(long nativeBitmap, Buffer src); 170336bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat private static native int nativeGenerationId(long nativeBitmap); 17049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native Bitmap nativeCreateFromParcel(Parcel p); 17069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // returns true on success 170736bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat private static native boolean nativeWriteToParcel(long nativeBitmap, 17089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean isMutable, 1709de0dfb7b65a02d4dd74c271b558adee0973fc267Dianne Hackborn int density, 17109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Parcel p); 17119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // returns a new bitmap built from the native bitmap's alpha, and the paint 171236bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat private static native Bitmap nativeExtractAlpha(long nativeBitmap, 171336bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat long nativePaint, 17149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] offsetXY); 17159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 171636bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat private static native boolean nativeHasAlpha(long nativeBitmap); 171757ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III private static native boolean nativeIsPremultiplied(long nativeBitmap); 171857ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III private static native void nativeSetPremultiplied(long nativeBitmap, 171957ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III boolean isPremul); 172057ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III private static native void nativeSetHasAlpha(long nativeBitmap, 172157ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III boolean hasAlpha, 172257ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III boolean requestPremul); 172336bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat private static native boolean nativeHasMipMap(long nativeBitmap); 172436bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat private static native void nativeSetHasMipMap(long nativeBitmap, boolean hasMipMap); 172536bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat private static native boolean nativeSameAs(long nativeBitmap0, long nativeBitmap1); 1726c6e2e8ff474ae44bab5b9eb665851118abd27b68John Reck private static native long nativeRefPixelRef(long nativeBitmap); 17279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 1728