Bitmap.java revision 6e3658a63843096058ed444d073fbcd191fd7e1b
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 28a5fdde9d15fbdf1aaeb61e1cf0c128af3aeb7b67Winsonimport libcore.util.NativeAllocationRegistry; 29a5fdde9d15fbdf1aaeb61e1cf0c128af3aeb7b67Winson 308cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chenimport java.io.OutputStream; 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.nio.Buffer; 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.nio.ByteBuffer; 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.nio.IntBuffer; 348cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chenimport java.nio.ShortBuffer; 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 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 51f29ed28c7b878ef28058bc730715d0d32445bc57John Reck // Convenience for JNI access 52f29ed28c7b878ef28058bc730715d0d32445bc57John Reck private final long mNativePtr; 53e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private final boolean mIsMutable; 551abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik 561abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik /** 5757ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III * Represents whether the Bitmap's content is requested to be pre-multiplied. 581abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * Note that isPremultiplied() does not directly return this value, because 5957ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III * isPremultiplied() may never return true for a 565 Bitmap or a bitmap 6057ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III * without alpha. 611abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * 621abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * setPremultiplied() does directly set the value so that setConfig() and 631abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * setPremultiplied() aren't order dependent, despite being setters. 6457ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III * 6557ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III * The native bitmap's premultiplication state is kept up to date by 6657ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III * pushing down this preference for every config change. 671abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik */ 6857ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III private boolean mRequestPremultiplied; 698790be6de3644e332ec6a17c855da89ffc13a9bfLeon Scroggins III 7047cd8e921db73e894f94ec4729ade90da50996f5Chris Craik private byte[] mNinePatchChunk; // may be null 7147cd8e921db73e894f94ec4729ade90da50996f5Chris Craik private NinePatch.InsetStruct mNinePatchInsets; // may be null 721abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik private int mWidth; 731abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik private int mHeight; 749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mRecycled; 759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 76caa08ff5e9ee004634a95776fc72bb769f1286deJohn Reck /** @hide */ 77caa08ff5e9ee004634a95776fc72bb769f1286deJohn Reck public int mDensity = getDefaultDensity(); 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7911ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn private static volatile Matrix sScaleMatrix; 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8196e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn private static volatile int sDefaultDensity = -1; 8202890fd0f98b3b8d98baf0bda1ea906afd723d8bRomain Guy 8396e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn /** 8496e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * For backwards compatibility, allows the app layer to change the default 8596e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * density when running old apps. 8696e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * @hide 8796e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn */ 8896e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn public static void setDefaultDensity(int density) { 8996e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn sDefaultDensity = density; 9096e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn } 913849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy 92f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck @SuppressWarnings("deprecation") 933849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy static int getDefaultDensity() { 9496e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn if (sDefaultDensity >= 0) { 9596e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn return sDefaultDensity; 9696e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn } 9796e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn sDefaultDensity = DisplayMetrics.DENSITY_DEVICE; 9896e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn return sDefaultDensity; 9996e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn } 100dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1029f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik * Private constructor that must received an already allocated native bitmap 1039f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik * int (pointer). 104ec4a50428d5f26a22df3edaf7e5b08f41d5cb54bAmith Yamasani */ 105f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck // called from JNI 1064508218850faedea95371188da587b6734f5f3dasergeyv Bitmap(long nativeBitmap, int width, int height, int density, 10757ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III boolean isMutable, boolean requestPremultiplied, 10847cd8e921db73e894f94ec4729ade90da50996f5Chris Craik byte[] ninePatchChunk, NinePatch.InsetStruct ninePatchInsets) { 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (nativeBitmap == 0) { 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException("internal error: native bitmap is 0"); 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1128cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 1131abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik mWidth = width; 1141abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik mHeight = height; 1151abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik mIsMutable = isMutable; 11657ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III mRequestPremultiplied = requestPremultiplied; 1174cd7dbc90f93893f521dce32d8cd25c02a185a24Chris Craik 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNinePatchChunk = ninePatchChunk; 11947cd8e921db73e894f94ec4729ade90da50996f5Chris Craik mNinePatchInsets = ninePatchInsets; 120de0dfb7b65a02d4dd74c271b558adee0973fc267Dianne Hackborn if (density >= 0) { 121de0dfb7b65a02d4dd74c271b558adee0973fc267Dianne Hackborn mDensity = density; 122de0dfb7b65a02d4dd74c271b558adee0973fc267Dianne Hackborn } 1234cd7dbc90f93893f521dce32d8cd25c02a185a24Chris Craik 124f29ed28c7b878ef28058bc730715d0d32445bc57John Reck mNativePtr = nativeBitmap; 1254508218850faedea95371188da587b6734f5f3dasergeyv long nativeSize = NATIVE_ALLOCATION_SIZE + getAllocationByteCount(); 126775873a66a946fae2b0535abb51df9817bd1b20cRichard Uhler NativeAllocationRegistry registry = new NativeAllocationRegistry( 1270ebdbb4a8470bb77f38c33a42c220ecb8a7adcc6Richard Uhler Bitmap.class.getClassLoader(), nativeGetNativeFinalizer(), nativeSize); 128775873a66a946fae2b0535abb51df9817bd1b20cRichard Uhler registry.registerNativeAllocation(this, nativeBitmap); 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1324c5efe9290543b723b76a8bd48518da1ae1dcb26Derek Sollenberger * Return the pointer to the native object. 133caa08ff5e9ee004634a95776fc72bb769f1286deJohn Reck * @hide 1344c5efe9290543b723b76a8bd48518da1ae1dcb26Derek Sollenberger */ 135caa08ff5e9ee004634a95776fc72bb769f1286deJohn Reck public long getNativeInstance() { 1364c5efe9290543b723b76a8bd48518da1ae1dcb26Derek Sollenberger return mNativePtr; 1374c5efe9290543b723b76a8bd48518da1ae1dcb26Derek Sollenberger } 1384c5efe9290543b723b76a8bd48518da1ae1dcb26Derek Sollenberger 1394c5efe9290543b723b76a8bd48518da1ae1dcb26Derek Sollenberger /** 1401abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * Native bitmap has been reconfigured, so set premult and cached 1411abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * width/height values 1429f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik */ 1439505a6552764461c22ce48f1ac13d025d23e1579Romain Guy @SuppressWarnings("unused") // called from JNI 14457ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III void reinit(int width, int height, boolean requestPremultiplied) { 1451abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik mWidth = width; 1461abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik mHeight = height; 14757ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III mRequestPremultiplied = requestPremultiplied; 1489f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik } 1499f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik 1509f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik /** 15111ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * <p>Returns the density for this bitmap.</p> 1529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15396e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * <p>The default density is the same density as the current display, 15496e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * unless the current application does not support different screen 15596e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * densities in which case it is 15696e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * {@link android.util.DisplayMetrics#DENSITY_DEFAULT}. Note that 15796e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * compatibility mode is determined by the application that was initially 15896e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * loaded into a process -- applications that share the same process should 15996e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * all have the same compatibility, or ensure they explicitly set the 16096e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * density of their bitmaps appropriately.</p> 1619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16296e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * @return A scaling factor of the default density or {@link #DENSITY_NONE} 1639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * if the scaling factor is unknown. 1649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16511ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @see #setDensity(int) 166a53b828635fce8b6b2d3e3377d74d72070056623Dianne Hackborn * @see android.util.DisplayMetrics#DENSITY_DEFAULT 16711ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @see android.util.DisplayMetrics#densityDpi 16811ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @see #DENSITY_NONE 1699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 17011ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn public int getDensity() { 17101a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck if (mRecycled) { 17201a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck Log.w(TAG, "Called getDensity() on a recycle()'d bitmap! This is undefined behavior!"); 17301a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck } 17411ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn return mDensity; 1759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 17811ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * <p>Specifies the density for this bitmap. When the bitmap is 17911ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * drawn to a Canvas that also has a density, it will be scaled 18011ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * appropriately.</p> 1819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 18211ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @param density The density scaling factor to use with this bitmap or 18311ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * {@link #DENSITY_NONE} if the density is unknown. 1849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 18511ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @see #getDensity() 186a53b828635fce8b6b2d3e3377d74d72070056623Dianne Hackborn * @see android.util.DisplayMetrics#DENSITY_DEFAULT 18711ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @see android.util.DisplayMetrics#densityDpi 18811ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @see #DENSITY_NONE 1899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19011ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn public void setDensity(int density) { 19111ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn mDensity = density; 1929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 193c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik 194c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik /** 195c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * <p>Modifies the bitmap to have a specified width, height, and {@link 196c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * Config}, without affecting the underlying allocation backing the bitmap. 197c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * Bitmap pixel data is not re-initialized for the new configuration.</p> 198c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * 199c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * <p>This method can be used to avoid allocating a new bitmap, instead 200c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * reusing an existing bitmap's allocation for a new configuration of equal 201c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * or lesser size. If the Bitmap's allocation isn't large enough to support 202c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * the new configuration, an IllegalArgumentException will be thrown and the 203c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * bitmap will not be modified.</p> 204c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * 205c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * <p>The result of {@link #getByteCount()} will reflect the new configuration, 206c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * while {@link #getAllocationByteCount()} will reflect that of the initial 207c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * configuration.</p> 208c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * 20917a8bfc38a565ae96f43d36b223779be840bb50cLeon Scroggins III * <p>Note: This may change this result of hasAlpha(). When converting to 565, 21017a8bfc38a565ae96f43d36b223779be840bb50cLeon Scroggins III * the new bitmap will always be considered opaque. When converting from 565, 21117a8bfc38a565ae96f43d36b223779be840bb50cLeon Scroggins III * the new bitmap will be considered non-opaque, and will respect the value 21217a8bfc38a565ae96f43d36b223779be840bb50cLeon Scroggins III * set by setPremultiplied().</p> 21317a8bfc38a565ae96f43d36b223779be840bb50cLeon Scroggins III * 2146d86e57bdadd56be160eb3e543cc53622cae46f2John Reck * <p>WARNING: This method should NOT be called on a bitmap currently in use 2156d86e57bdadd56be160eb3e543cc53622cae46f2John Reck * by the view system, Canvas, or the AndroidBitmap NDK API. It does not 2166d86e57bdadd56be160eb3e543cc53622cae46f2John Reck * make guarantees about how the underlying pixel buffer is remapped to the 2176d86e57bdadd56be160eb3e543cc53622cae46f2John Reck * new config, just that the allocation is reused. Additionally, the view 2186d86e57bdadd56be160eb3e543cc53622cae46f2John Reck * system does not account for bitmap properties being modifying during use, 2196d86e57bdadd56be160eb3e543cc53622cae46f2John Reck * e.g. while attached to drawables.</p> 2206d86e57bdadd56be160eb3e543cc53622cae46f2John Reck * 2216d86e57bdadd56be160eb3e543cc53622cae46f2John Reck * <p>In order to safely ensure that a Bitmap is no longer in use by the 2226d86e57bdadd56be160eb3e543cc53622cae46f2John Reck * View system it is necessary to wait for a draw pass to occur after 2236d86e57bdadd56be160eb3e543cc53622cae46f2John Reck * invalidate()'ing any view that had previously drawn the Bitmap in the last 2246d86e57bdadd56be160eb3e543cc53622cae46f2John Reck * draw pass due to hardware acceleration's caching of draw commands. As 2256d86e57bdadd56be160eb3e543cc53622cae46f2John Reck * an example, here is how this can be done for an ImageView: 2266d86e57bdadd56be160eb3e543cc53622cae46f2John Reck * <pre class="prettyprint"> 2276d86e57bdadd56be160eb3e543cc53622cae46f2John Reck * ImageView myImageView = ...; 2286d86e57bdadd56be160eb3e543cc53622cae46f2John Reck * final Bitmap myBitmap = ...; 2296d86e57bdadd56be160eb3e543cc53622cae46f2John Reck * myImageView.setImageDrawable(null); 2306d86e57bdadd56be160eb3e543cc53622cae46f2John Reck * myImageView.post(new Runnable() { 2316d86e57bdadd56be160eb3e543cc53622cae46f2John Reck * public void run() { 2326d86e57bdadd56be160eb3e543cc53622cae46f2John Reck * // myBitmap is now no longer in use by the ImageView 2336d86e57bdadd56be160eb3e543cc53622cae46f2John Reck * // and can be safely reconfigured. 2346d86e57bdadd56be160eb3e543cc53622cae46f2John Reck * myBitmap.reconfigure(...); 2356d86e57bdadd56be160eb3e543cc53622cae46f2John Reck * } 2366d86e57bdadd56be160eb3e543cc53622cae46f2John Reck * }); 2376d86e57bdadd56be160eb3e543cc53622cae46f2John Reck * </pre></p> 238c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * 239c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * @see #setWidth(int) 240c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * @see #setHeight(int) 241c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * @see #setConfig(Config) 242c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik */ 243c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik public void reconfigure(int width, int height, Config config) { 244c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik checkRecycled("Can't call reconfigure() on a recycled bitmap"); 245c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik if (width <= 0 || height <= 0) { 246c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik throw new IllegalArgumentException("width and height must be > 0"); 247c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik } 248c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik if (!isMutable()) { 2499c2cde0583d02ba7551877dbe7a5ecaee6defb56Chris Craik throw new IllegalStateException("only mutable bitmaps may be reconfigured"); 250c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik } 251c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik 2524508218850faedea95371188da587b6734f5f3dasergeyv nativeReconfigure(mNativePtr, width, height, config.nativeInt, mRequestPremultiplied); 253c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik mWidth = width; 254c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik mHeight = height; 255c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik } 256c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik 257c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik /** 258c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * <p>Convenience method for calling {@link #reconfigure(int, int, Config)} 259c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * with the current height and config.</p> 260c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * 261c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * <p>WARNING: this method should not be used on bitmaps currently used by 262c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * the view system, see {@link #reconfigure(int, int, Config)} for more 263c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * details.</p> 264c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * 265c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * @see #reconfigure(int, int, Config) 266c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * @see #setHeight(int) 267c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * @see #setConfig(Config) 268c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik */ 269c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik public void setWidth(int width) { 270c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik reconfigure(width, getHeight(), getConfig()); 271c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik } 272c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik 273c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik /** 274c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * <p>Convenience method for calling {@link #reconfigure(int, int, Config)} 275c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * with the current width and config.</p> 276c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * 277c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * <p>WARNING: this method should not be used on bitmaps currently used by 278c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * the view system, see {@link #reconfigure(int, int, Config)} for more 279c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * details.</p> 280c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * 281c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * @see #reconfigure(int, int, Config) 282c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * @see #setWidth(int) 283c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * @see #setConfig(Config) 284c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik */ 285c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik public void setHeight(int height) { 286c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik reconfigure(getWidth(), height, getConfig()); 287c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik } 288c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik 289c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik /** 290c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * <p>Convenience method for calling {@link #reconfigure(int, int, Config)} 291c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * with the current height and width.</p> 292c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * 293c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * <p>WARNING: this method should not be used on bitmaps currently used by 294c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * the view system, see {@link #reconfigure(int, int, Config)} for more 295c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * details.</p> 296c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * 297c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * @see #reconfigure(int, int, Config) 298c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * @see #setWidth(int) 299c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * @see #setHeight(int) 300c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik */ 301c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik public void setConfig(Config config) { 302c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik reconfigure(getWidth(), getHeight(), config); 303c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik } 304c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik 3059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the nine patch chunk. 3079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 3089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param chunk The definition of the nine patch 3099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 3109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @hide 3119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setNinePatchChunk(byte[] chunk) { 3139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNinePatchChunk = chunk; 3149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3158cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 3169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 317a383b3f646cbc1fd870f2694d4fac24340834916Patrick Dubroy * Free the native object associated with this bitmap, and clear the 318a383b3f646cbc1fd870f2694d4fac24340834916Patrick Dubroy * reference to the pixel data. This will not free the pixel data synchronously; 319a383b3f646cbc1fd870f2694d4fac24340834916Patrick Dubroy * it simply allows it to be garbage collected if there are no other references. 320a383b3f646cbc1fd870f2694d4fac24340834916Patrick Dubroy * The bitmap is marked as "dead", meaning it will throw an exception if 321a383b3f646cbc1fd870f2694d4fac24340834916Patrick Dubroy * getPixels() or setPixels() is called, and will draw nothing. This operation 322a383b3f646cbc1fd870f2694d4fac24340834916Patrick Dubroy * cannot be reversed, so it should only be called if you are sure there are no 3239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * further uses for the bitmap. This is an advanced call, and normally need 3249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * not be called, since the normal GC process will free up this memory when 3259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * there are no more references to this bitmap. 3269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void recycle() { 328775873a66a946fae2b0535abb51df9817bd1b20cRichard Uhler if (!mRecycled && mNativePtr != 0) { 329775873a66a946fae2b0535abb51df9817bd1b20cRichard Uhler if (nativeRecycle(mNativePtr)) { 330547e66531d521eb1eadac87edb0f79f8c2f1bbe0Chet Haase // return value indicates whether native pixel object was actually recycled. 331547e66531d521eb1eadac87edb0f79f8c2f1bbe0Chet Haase // false indicates that it is still in use at the native level and these 332547e66531d521eb1eadac87edb0f79f8c2f1bbe0Chet Haase // objects should not be collected now. They will be collected later when the 333547e66531d521eb1eadac87edb0f79f8c2f1bbe0Chet Haase // Bitmap itself is collected. 334547e66531d521eb1eadac87edb0f79f8c2f1bbe0Chet Haase mNinePatchChunk = null; 335547e66531d521eb1eadac87edb0f79f8c2f1bbe0Chet Haase } 3369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycled = true; 3379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns true if this bitmap has been recycled. If so, then it is an error 3429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to try to access its pixels, and the bitmap will not draw. 3439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 3449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the bitmap has been recycled 3459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final boolean isRecycled() { 3479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mRecycled; 3489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3498cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 3509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3510bbae0836426ba2704e38e7f90a9d0ca502ab71dRomain Guy * Returns the generation ID of this bitmap. The generation ID changes 3520bbae0836426ba2704e38e7f90a9d0ca502ab71dRomain Guy * whenever the bitmap is modified. This can be used as an efficient way to 3530bbae0836426ba2704e38e7f90a9d0ca502ab71dRomain Guy * check if a bitmap has changed. 354f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck * 3550bbae0836426ba2704e38e7f90a9d0ca502ab71dRomain Guy * @return The current generation ID for this bitmap. 3560bbae0836426ba2704e38e7f90a9d0ca502ab71dRomain Guy */ 3570bbae0836426ba2704e38e7f90a9d0ca502ab71dRomain Guy public int getGenerationId() { 35801a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck if (mRecycled) { 35901a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck Log.w(TAG, "Called getGenerationId() on a recycle()'d bitmap! This is undefined behavior!"); 36001a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck } 361775873a66a946fae2b0535abb51df9817bd1b20cRichard Uhler return nativeGenerationId(mNativePtr); 3620bbae0836426ba2704e38e7f90a9d0ca502ab71dRomain Guy } 363f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck 3640bbae0836426ba2704e38e7f90a9d0ca502ab71dRomain Guy /** 3659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This is called by methods that want to throw an exception if the bitmap 3669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * has already been recycled. 3679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void checkRecycled(String errorMessage) { 3699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mRecycled) { 3709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalStateException(errorMessage); 3719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3738cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 3749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 375980bead518fc5ddb52ae8d00258f91b087c1f91asergeyv * This is called by methods that want to throw an exception if the bitmap 376980bead518fc5ddb52ae8d00258f91b087c1f91asergeyv * is {@link Config#HARDWARE}. 377980bead518fc5ddb52ae8d00258f91b087c1f91asergeyv */ 378980bead518fc5ddb52ae8d00258f91b087c1f91asergeyv private void checkHardware(String errorMessage) { 379980bead518fc5ddb52ae8d00258f91b087c1f91asergeyv if (getConfig() == Config.HARDWARE) { 380980bead518fc5ddb52ae8d00258f91b087c1f91asergeyv throw new IllegalStateException(errorMessage); 381980bead518fc5ddb52ae8d00258f91b087c1f91asergeyv } 382980bead518fc5ddb52ae8d00258f91b087c1f91asergeyv } 383980bead518fc5ddb52ae8d00258f91b087c1f91asergeyv 384980bead518fc5ddb52ae8d00258f91b087c1f91asergeyv /** 3859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Common code for checking that x and y are >= 0 3869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 3879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x x coordinate to ensure is >= 0 3889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y y coordinate to ensure is >= 0 3899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static void checkXYSign(int x, int y) { 3919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (x < 0) { 3929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("x must be >= 0"); 3939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (y < 0) { 3959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("y must be >= 0"); 3969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Common code for checking that width and height are > 0 4019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param width width to ensure is > 0 4039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param height height to ensure is > 0 4049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static void checkWidthHeight(int width, int height) { 4069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (width <= 0) { 4079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("width must be > 0"); 4089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height <= 0) { 4109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("height must be > 0"); 4119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 414676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy /** 415676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * Possible bitmap configurations. A bitmap configuration describes 416676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * how pixels are stored. This affects the quality (color depth) as 417676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * well as the ability to display transparent/translucent colors. 418676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy */ 4199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public enum Config { 4209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // these native values must match up with the enum in SkBitmap.h 421676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy 422676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy /** 423676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * Each pixel is stored as a single translucency (alpha) channel. 424676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * This is very useful to efficiently store masks for instance. 425676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * No color information is stored. 426676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * With this configuration, each pixel requires 1 byte of memory. 427676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy */ 428b644a3b84521e2155a5af985a4d4ed305474e567Derek Sollenberger ALPHA_8 (1), 429676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy 430676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy /** 431676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * Each pixel is stored on 2 bytes and only the RGB channels are 432676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * encoded: red is stored with 5 bits of precision (32 possible 433676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * values), green is stored with 6 bits of precision (64 possible 434676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * values) and blue is stored with 5 bits of precision. 435f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck * 436676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * This configuration can produce slight visual artifacts depending 437676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * on the configuration of the source. For instance, without 438676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * dithering, the result might show a greenish tint. To get better 439676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * results dithering should be applied. 440f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck * 441676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * This configuration may be useful when using opaque bitmaps 442676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * that do not require high color fidelity. 443676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy */ 444b644a3b84521e2155a5af985a4d4ed305474e567Derek Sollenberger RGB_565 (3), 445676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy 446676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy /** 447676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * Each pixel is stored on 2 bytes. The three RGB color channels 448676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * and the alpha channel (translucency) are stored with a 4 bits 449676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * precision (16 possible values.) 450f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck * 451676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * This configuration is mostly useful if the application needs 452676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * to store translucency information but also needs to save 453676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * memory. 454f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck * 455676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * It is recommended to use {@link #ARGB_8888} instead of this 456676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * configuration. 45725ba1c86945a441428194d9ebcabbf31be75a45aRomain Guy * 458e8222dddaf2e3da14380101e818d4254899e0c0dChet Haase * Note: as of {@link android.os.Build.VERSION_CODES#KITKAT}, 45925ba1c86945a441428194d9ebcabbf31be75a45aRomain Guy * any bitmap created with this configuration will be created 46025ba1c86945a441428194d9ebcabbf31be75a45aRomain Guy * using {@link #ARGB_8888} instead. 461f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck * 462676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * @deprecated Because of the poor quality of this configuration, 463676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * it is advised to use {@link #ARGB_8888} instead. 464676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy */ 465676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy @Deprecated 466b644a3b84521e2155a5af985a4d4ed305474e567Derek Sollenberger ARGB_4444 (4), 467676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy 468676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy /** 469676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * Each pixel is stored on 4 bytes. Each channel (RGB and alpha 470676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * for translucency) is stored with 8 bits of precision (256 471676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * possible values.) 472f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck * 473676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * This configuration is very flexible and offers the best 474676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * quality. It should be used whenever possible. 475676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy */ 476da6c8ffcc594493c3936f83255efccdbf964cd21sergeyv ARGB_8888 (5), 477da6c8ffcc594493c3936f83255efccdbf964cd21sergeyv 4789505a6552764461c22ce48f1ac13d025d23e1579Romain Guy /** 4799505a6552764461c22ce48f1ac13d025d23e1579Romain Guy * Each pixels is stored on 8 bytes. Each channel (RGB and alpha 4809505a6552764461c22ce48f1ac13d025d23e1579Romain Guy * for translucency) is stored as a 4819505a6552764461c22ce48f1ac13d025d23e1579Romain Guy * {@link android.util.Half half-precision floating point value}. 4829505a6552764461c22ce48f1ac13d025d23e1579Romain Guy * 4839505a6552764461c22ce48f1ac13d025d23e1579Romain Guy * This configuration is particularly suited for wide-gamut and 4849505a6552764461c22ce48f1ac13d025d23e1579Romain Guy * HDR content. 4859505a6552764461c22ce48f1ac13d025d23e1579Romain Guy */ 4869505a6552764461c22ce48f1ac13d025d23e1579Romain Guy RGBA_F16 (6), 487da6c8ffcc594493c3936f83255efccdbf964cd21sergeyv 488da6c8ffcc594493c3936f83255efccdbf964cd21sergeyv /** 4899fbb0b5ab321d86efbc7fa8774052bfb34de9557sergeyv * Special configuration, when bitmap is stored only in graphic memory. 4909fbb0b5ab321d86efbc7fa8774052bfb34de9557sergeyv * Bitmaps in this configuration are always immutable. 4919fbb0b5ab321d86efbc7fa8774052bfb34de9557sergeyv * 4929fbb0b5ab321d86efbc7fa8774052bfb34de9557sergeyv * It is optimal for cases, when the only operation with the bitmap is to draw it on a 4939fbb0b5ab321d86efbc7fa8774052bfb34de9557sergeyv * screen. 494da6c8ffcc594493c3936f83255efccdbf964cd21sergeyv */ 4959505a6552764461c22ce48f1ac13d025d23e1579Romain Guy HARDWARE (7); 4969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 497676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy final int nativeInt; 498676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy 499676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy private static Config sConfigs[] = { 5009505a6552764461c22ce48f1ac13d025d23e1579Romain Guy null, ALPHA_8, null, RGB_565, ARGB_4444, ARGB_8888, RGBA_F16, HARDWARE 501676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy }; 502f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck 5039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Config(int ni) { 5049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this.nativeInt = ni; 5059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5068cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 507676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy static Config nativeToConfig(int ni) { 5089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return sConfigs[ni]; 5099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5118cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 5129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5133849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * <p>Copy the bitmap's pixels into the specified buffer (allocated by the 5149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * caller). An exception is thrown if the buffer is not large enough to 5159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * hold all of the pixels (taking into account the number of bytes per 5169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * pixel) or if the Buffer subclass is not one of the support types 5173849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * (ByteBuffer, ShortBuffer, IntBuffer).</p> 5183849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * <p>The content of the bitmap is copied into the buffer as-is. This means 5193849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * that if this bitmap stores its pixels pre-multiplied 5203849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * (see {@link #isPremultiplied()}, the values in the buffer will also be 5213849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * pre-multiplied.</p> 5221f58497e7dbab1b16e97c73b65559b852d0c2803Romain Guy * <p>After this method returns, the current position of the buffer is 5231f58497e7dbab1b16e97c73b65559b852d0c2803Romain Guy * updated: the position is incremented by the number of elements written 5241f58497e7dbab1b16e97c73b65559b852d0c2803Romain Guy * in the buffer.</p> 525980bead518fc5ddb52ae8d00258f91b087c1f91asergeyv * @throws IllegalStateException if the bitmap's config is {@link Config#HARDWARE} 5269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void copyPixelsToBuffer(Buffer dst) { 528980bead518fc5ddb52ae8d00258f91b087c1f91asergeyv checkHardware("unable to copyPixelsToBuffer, " 529980bead518fc5ddb52ae8d00258f91b087c1f91asergeyv + "pixel access is not supported on Config#HARDWARE bitmaps"); 5309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int elements = dst.remaining(); 5319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int shift; 5329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (dst instanceof ByteBuffer) { 5339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project shift = 0; 5349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (dst instanceof ShortBuffer) { 5359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project shift = 1; 5369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (dst instanceof IntBuffer) { 5379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project shift = 2; 5389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 5399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException("unsupported Buffer subclass"); 5409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5418cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 5429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long bufferSize = (long)elements << shift; 543f7f9d9c39df22ad6929f001f07588469f77e8bf5Jesse Wilson long pixelSize = getByteCount(); 5448cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 5459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (bufferSize < pixelSize) { 5469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException("Buffer not large enough for pixels"); 5479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5488cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 549775873a66a946fae2b0535abb51df9817bd1b20cRichard Uhler nativeCopyPixelsToBuffer(mNativePtr, dst); 5508cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 5519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // now update the buffer's position 5529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = dst.position(); 5539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position += pixelSize >> shift; 5549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dst.position(position); 5559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5583849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * <p>Copy the pixels from the buffer, beginning at the current position, 5599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * overwriting the bitmap's pixels. The data in the buffer is not changed 5609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * in any way (unlike setPixels(), which converts from unpremultipled 32bit 5613849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * to whatever the bitmap's native format is.</p> 5621f58497e7dbab1b16e97c73b65559b852d0c2803Romain Guy * <p>After this method returns, the current position of the buffer is 5631f58497e7dbab1b16e97c73b65559b852d0c2803Romain Guy * updated: the position is incremented by the number of elements read from 5641f58497e7dbab1b16e97c73b65559b852d0c2803Romain Guy * the buffer. If you need to read the bitmap from the buffer again you must 5651f58497e7dbab1b16e97c73b65559b852d0c2803Romain Guy * first rewind the buffer.</p> 566980bead518fc5ddb52ae8d00258f91b087c1f91asergeyv * @throws IllegalStateException if the bitmap's config is {@link Config#HARDWARE} 5679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void copyPixelsFromBuffer(Buffer src) { 5699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRecycled("copyPixelsFromBuffer called on recycled bitmap"); 570980bead518fc5ddb52ae8d00258f91b087c1f91asergeyv checkHardware("unable to copyPixelsFromBuffer, Config#HARDWARE bitmaps are immutable"); 5718cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 5729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int elements = src.remaining(); 5739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int shift; 5749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (src instanceof ByteBuffer) { 5759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project shift = 0; 5769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (src instanceof ShortBuffer) { 5779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project shift = 1; 5789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (src instanceof IntBuffer) { 5799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project shift = 2; 5809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 5819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException("unsupported Buffer subclass"); 5829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5838cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 5843849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy long bufferBytes = (long) elements << shift; 585f7f9d9c39df22ad6929f001f07588469f77e8bf5Jesse Wilson long bitmapBytes = getByteCount(); 5868cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 5879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (bufferBytes < bitmapBytes) { 5889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException("Buffer not large enough for pixels"); 5899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5908cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 591775873a66a946fae2b0535abb51df9817bd1b20cRichard Uhler nativeCopyPixelsFromBuffer(mNativePtr, src); 59255adc145d460be4b21de0d77be1f6076c3591e3cMarco Nelissen 59355adc145d460be4b21de0d77be1f6076c3591e3cMarco Nelissen // now update the buffer's position 59455adc145d460be4b21de0d77be1f6076c3591e3cMarco Nelissen int position = src.position(); 59555adc145d460be4b21de0d77be1f6076c3591e3cMarco Nelissen position += bitmapBytes >> shift; 59655adc145d460be4b21de0d77be1f6076c3591e3cMarco Nelissen src.position(position); 5979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5988cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 5999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Tries to make a new bitmap based on the dimensions of this bitmap, 6019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * setting the new bitmap's config to the one specified, and then copying 6029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this bitmap's pixels into the new bitmap. If the conversion is not 60396e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * supported, or the allocator fails, then this returns NULL. The returned 60496e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * bitmap initially has the same density as the original. 6059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param config The desired config for the resulting bitmap 6079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param isMutable True if the resulting bitmap should be mutable (i.e. 6089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * its pixels can be modified) 6099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the new bitmap, or null if the copy could not be made. 61005126d151eb3caa85bd3a039cffb6e37940c3fa4sergeyv * @throws IllegalArgumentException if config is {@link Config#HARDWARE} and isMutable is true 6119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Bitmap copy(Config config, boolean isMutable) { 6139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRecycled("Can't copy a recycled bitmap"); 61405126d151eb3caa85bd3a039cffb6e37940c3fa4sergeyv if (config == Config.HARDWARE && isMutable) { 61505126d151eb3caa85bd3a039cffb6e37940c3fa4sergeyv throw new IllegalArgumentException("Hardware bitmaps are always immutable"); 61605126d151eb3caa85bd3a039cffb6e37940c3fa4sergeyv } 617775873a66a946fae2b0535abb51df9817bd1b20cRichard Uhler Bitmap b = nativeCopy(mNativePtr, config.nativeInt, isMutable); 61896e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn if (b != null) { 61957ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III b.setPremultiplied(mRequestPremultiplied); 62096e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn b.mDensity = mDensity; 62196e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn } 62296e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn return b; 6239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 62502d9102b3bdebac6989c2b7d12c080fb7c1f8e2bBrad Fitzpatrick /** 626721ae5fec5f1fd4f93aa2a361a0ac298e15ce353Riley Andrews * Creates a new immutable bitmap backed by ashmem which can efficiently 627721ae5fec5f1fd4f93aa2a361a0ac298e15ce353Riley Andrews * be passed between processes. 628721ae5fec5f1fd4f93aa2a361a0ac298e15ce353Riley Andrews * 629721ae5fec5f1fd4f93aa2a361a0ac298e15ce353Riley Andrews * @hide 630721ae5fec5f1fd4f93aa2a361a0ac298e15ce353Riley Andrews */ 631721ae5fec5f1fd4f93aa2a361a0ac298e15ce353Riley Andrews public Bitmap createAshmemBitmap() { 632721ae5fec5f1fd4f93aa2a361a0ac298e15ce353Riley Andrews checkRecycled("Can't copy a recycled bitmap"); 633775873a66a946fae2b0535abb51df9817bd1b20cRichard Uhler Bitmap b = nativeCopyAshmem(mNativePtr); 634721ae5fec5f1fd4f93aa2a361a0ac298e15ce353Riley Andrews if (b != null) { 635721ae5fec5f1fd4f93aa2a361a0ac298e15ce353Riley Andrews b.setPremultiplied(mRequestPremultiplied); 636721ae5fec5f1fd4f93aa2a361a0ac298e15ce353Riley Andrews b.mDensity = mDensity; 637721ae5fec5f1fd4f93aa2a361a0ac298e15ce353Riley Andrews } 638721ae5fec5f1fd4f93aa2a361a0ac298e15ce353Riley Andrews return b; 639721ae5fec5f1fd4f93aa2a361a0ac298e15ce353Riley Andrews } 640721ae5fec5f1fd4f93aa2a361a0ac298e15ce353Riley Andrews 641721ae5fec5f1fd4f93aa2a361a0ac298e15ce353Riley Andrews /** 642a5fdde9d15fbdf1aaeb61e1cf0c128af3aeb7b67Winson * Creates a new immutable bitmap backed by ashmem which can efficiently 643a5fdde9d15fbdf1aaeb61e1cf0c128af3aeb7b67Winson * be passed between processes. 644a5fdde9d15fbdf1aaeb61e1cf0c128af3aeb7b67Winson * 645a5fdde9d15fbdf1aaeb61e1cf0c128af3aeb7b67Winson * @hide 646a5fdde9d15fbdf1aaeb61e1cf0c128af3aeb7b67Winson */ 647a5fdde9d15fbdf1aaeb61e1cf0c128af3aeb7b67Winson public Bitmap createAshmemBitmap(Config config) { 648a5fdde9d15fbdf1aaeb61e1cf0c128af3aeb7b67Winson checkRecycled("Can't copy a recycled bitmap"); 649a5fdde9d15fbdf1aaeb61e1cf0c128af3aeb7b67Winson Bitmap b = nativeCopyAshmemConfig(mNativePtr, config.nativeInt); 650a5fdde9d15fbdf1aaeb61e1cf0c128af3aeb7b67Winson if (b != null) { 651a5fdde9d15fbdf1aaeb61e1cf0c128af3aeb7b67Winson b.setPremultiplied(mRequestPremultiplied); 652a5fdde9d15fbdf1aaeb61e1cf0c128af3aeb7b67Winson b.mDensity = mDensity; 653a5fdde9d15fbdf1aaeb61e1cf0c128af3aeb7b67Winson } 654a5fdde9d15fbdf1aaeb61e1cf0c128af3aeb7b67Winson return b; 655a5fdde9d15fbdf1aaeb61e1cf0c128af3aeb7b67Winson } 656a5fdde9d15fbdf1aaeb61e1cf0c128af3aeb7b67Winson 657a5fdde9d15fbdf1aaeb61e1cf0c128af3aeb7b67Winson /** 6580a0f23163a7a62900d46c7f81d109320d73d6c6bsergeyv * Create hardware bitmap backed GraphicBuffer. 6590a0f23163a7a62900d46c7f81d109320d73d6c6bsergeyv * 6600a0f23163a7a62900d46c7f81d109320d73d6c6bsergeyv * @return Bitmap or null if this GraphicBuffer has unsupported PixelFormat. 6610a0f23163a7a62900d46c7f81d109320d73d6c6bsergeyv * currently PIXEL_FORMAT_RGBA_8888 is the only supported format 6620a0f23163a7a62900d46c7f81d109320d73d6c6bsergeyv * @hide 6630a0f23163a7a62900d46c7f81d109320d73d6c6bsergeyv */ 6640a0f23163a7a62900d46c7f81d109320d73d6c6bsergeyv public static Bitmap createHardwareBitmap(GraphicBuffer graphicBuffer) { 6650a0f23163a7a62900d46c7f81d109320d73d6c6bsergeyv return nativeCreateHardwareBitmap(graphicBuffer); 6660a0f23163a7a62900d46c7f81d109320d73d6c6bsergeyv } 6670a0f23163a7a62900d46c7f81d109320d73d6c6bsergeyv 6680a0f23163a7a62900d46c7f81d109320d73d6c6bsergeyv /** 669f12f6f058f169ead83a546a1c3a51e49452a30b3Romain Guy * Creates a new bitmap, scaled from an existing bitmap, when possible. If the 670f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck * specified width and height are the same as the current width and height of 6719f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik * the source bitmap, the source bitmap is returned and no new bitmap is 672f12f6f058f169ead83a546a1c3a51e49452a30b3Romain Guy * created. 67302d9102b3bdebac6989c2b7d12c080fb7c1f8e2bBrad Fitzpatrick * 67402d9102b3bdebac6989c2b7d12c080fb7c1f8e2bBrad Fitzpatrick * @param src The source bitmap. 67502d9102b3bdebac6989c2b7d12c080fb7c1f8e2bBrad Fitzpatrick * @param dstWidth The new bitmap's desired width. 67602d9102b3bdebac6989c2b7d12c080fb7c1f8e2bBrad Fitzpatrick * @param dstHeight The new bitmap's desired height. 67702d9102b3bdebac6989c2b7d12c080fb7c1f8e2bBrad Fitzpatrick * @param filter true if the source should be filtered. 678f12f6f058f169ead83a546a1c3a51e49452a30b3Romain Guy * @return The new scaled bitmap or the source bitmap if no scaling is required. 679790552b240c05d58407f7c14acba656b2e85c523Romain Guy * @throws IllegalArgumentException if width is <= 0, or height is <= 0 68002d9102b3bdebac6989c2b7d12c080fb7c1f8e2bBrad Fitzpatrick */ 681f12f6f058f169ead83a546a1c3a51e49452a30b3Romain Guy public static Bitmap createScaledBitmap(Bitmap src, int dstWidth, int dstHeight, 682f12f6f058f169ead83a546a1c3a51e49452a30b3Romain Guy boolean filter) { 6839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Matrix m; 6849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project synchronized (Bitmap.class) { 6859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // small pool of just 1 matrix 6869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project m = sScaleMatrix; 6879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sScaleMatrix = null; 6889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (m == null) { 6919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project m = new Matrix(); 6929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6938cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 6949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int width = src.getWidth(); 6959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = src.getHeight(); 6969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float sx = dstWidth / (float)width; 6979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float sy = dstHeight / (float)height; 6989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project m.setScale(sx, sy); 6999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Bitmap b = Bitmap.createBitmap(src, 0, 0, width, height, m, filter); 7009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project synchronized (Bitmap.class) { 7029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // do we need to check for null? why not just assign everytime? 7039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sScaleMatrix == null) { 7049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sScaleMatrix = m; 7059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7088cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen return b; 7099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7108cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 7119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns an immutable bitmap from the source bitmap. The new bitmap may 71396e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * be the same object as source, or a copy may have been made. It is 71496e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * initialized with the same density as the original bitmap. 7159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static Bitmap createBitmap(Bitmap src) { 7179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return createBitmap(src, 0, 0, src.getWidth(), src.getHeight()); 7189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns an immutable bitmap from the specified subset of the source 7229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * bitmap. The new bitmap may be the same object as source, or a copy may 723f12f6f058f169ead83a546a1c3a51e49452a30b3Romain Guy * have been made. It is initialized with the same density as the original 724f12f6f058f169ead83a546a1c3a51e49452a30b3Romain Guy * bitmap. 7259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param source The bitmap we are subsetting 7279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x The x coordinate of the first pixel in source 7289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y The y coordinate of the first pixel in source 7299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param width The number of pixels in each row 7309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param height The number of rows 731f12f6f058f169ead83a546a1c3a51e49452a30b3Romain Guy * @return A copy of a subset of the source bitmap or the source bitmap itself. 732790552b240c05d58407f7c14acba656b2e85c523Romain Guy * @throws IllegalArgumentException if the x, y, width, height values are 733790552b240c05d58407f7c14acba656b2e85c523Romain Guy * outside of the dimensions of the source bitmap, or width is <= 0, 734790552b240c05d58407f7c14acba656b2e85c523Romain Guy * or height is <= 0 7359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static Bitmap createBitmap(Bitmap source, int x, int y, int width, int height) { 7379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return createBitmap(source, x, y, width, height, null, false); 7389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7398cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 7409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns an immutable bitmap from subset of the source bitmap, 742f12f6f058f169ead83a546a1c3a51e49452a30b3Romain Guy * transformed by the optional matrix. The new bitmap may be the 743f12f6f058f169ead83a546a1c3a51e49452a30b3Romain Guy * same object as source, or a copy may have been made. It is 74496e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * initialized with the same density as the original bitmap. 745f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck * 746f12f6f058f169ead83a546a1c3a51e49452a30b3Romain Guy * If the source bitmap is immutable and the requested subset is the 747f12f6f058f169ead83a546a1c3a51e49452a30b3Romain Guy * same as the source bitmap itself, then the source bitmap is 748f12f6f058f169ead83a546a1c3a51e49452a30b3Romain Guy * returned and no new bitmap is created. 7499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param source The bitmap we are subsetting 7519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x The x coordinate of the first pixel in source 7529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y The y coordinate of the first pixel in source 7539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param width The number of pixels in each row 7549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param height The number of rows 75560b88edea7132ddce90f2dced07c6706f1502270Ken Shirriff * @param m Optional matrix to be applied to the pixels 7569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param filter true if the source should be filtered. 7579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Only applies if the matrix contains more than just 7589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * translation. 7599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A bitmap that represents the specified subset of source 7609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IllegalArgumentException if the x, y, width, height values are 761790552b240c05d58407f7c14acba656b2e85c523Romain Guy * outside of the dimensions of the source bitmap, or width is <= 0, 762790552b240c05d58407f7c14acba656b2e85c523Romain Guy * or height is <= 0 7639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static Bitmap createBitmap(Bitmap source, int x, int y, int width, int height, 7659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Matrix m, boolean filter) { 7669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkXYSign(x, y); 7689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkWidthHeight(width, height); 7699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (x + width > source.getWidth()) { 7709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("x + width must be <= bitmap.width()"); 7719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (y + height > source.getHeight()) { 7739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("y + height must be <= bitmap.height()"); 7749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // check if we can just return our argument unchanged 7779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!source.isMutable() && x == 0 && y == 0 && width == source.getWidth() && 7789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height == source.getHeight() && (m == null || m.isIdentity())) { 7799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return source; 7809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7818cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 78281f97ee47ccf0d011cdc4f38b6ea5c45b70dedc0sergeyv boolean isHardware = source.getConfig() == Config.HARDWARE; 78381f97ee47ccf0d011cdc4f38b6ea5c45b70dedc0sergeyv if (isHardware) { 78481f97ee47ccf0d011cdc4f38b6ea5c45b70dedc0sergeyv source = nativeCopyPreserveInternalConfig(source.mNativePtr); 78581f97ee47ccf0d011cdc4f38b6ea5c45b70dedc0sergeyv } 78681f97ee47ccf0d011cdc4f38b6ea5c45b70dedc0sergeyv 7879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int neww = width; 7889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int newh = height; 7899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Canvas canvas = new Canvas(); 7909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Bitmap bitmap; 7919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Paint paint; 7929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect srcR = new Rect(x, y, x + width, y + height); 7949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RectF dstR = new RectF(0, 0, width, height); 7959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 796feeea8f07c854e6b0ae2fec3aa2d239c17f32b5bRomain Guy Config newConfig = Config.ARGB_8888; 797feeea8f07c854e6b0ae2fec3aa2d239c17f32b5bRomain Guy final Config config = source.getConfig(); 798feeea8f07c854e6b0ae2fec3aa2d239c17f32b5bRomain Guy // GIF files generate null configs, assume ARGB_8888 799feeea8f07c854e6b0ae2fec3aa2d239c17f32b5bRomain Guy if (config != null) { 800feeea8f07c854e6b0ae2fec3aa2d239c17f32b5bRomain Guy switch (config) { 801feeea8f07c854e6b0ae2fec3aa2d239c17f32b5bRomain Guy case RGB_565: 802feeea8f07c854e6b0ae2fec3aa2d239c17f32b5bRomain Guy newConfig = Config.RGB_565; 803feeea8f07c854e6b0ae2fec3aa2d239c17f32b5bRomain Guy break; 804feeea8f07c854e6b0ae2fec3aa2d239c17f32b5bRomain Guy case ALPHA_8: 805feeea8f07c854e6b0ae2fec3aa2d239c17f32b5bRomain Guy newConfig = Config.ALPHA_8; 806feeea8f07c854e6b0ae2fec3aa2d239c17f32b5bRomain Guy break; 8079505a6552764461c22ce48f1ac13d025d23e1579Romain Guy case RGBA_F16: 8089505a6552764461c22ce48f1ac13d025d23e1579Romain Guy newConfig = Config.RGBA_F16; 8099505a6552764461c22ce48f1ac13d025d23e1579Romain Guy break; 810676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy //noinspection deprecation 811feeea8f07c854e6b0ae2fec3aa2d239c17f32b5bRomain Guy case ARGB_4444: 812feeea8f07c854e6b0ae2fec3aa2d239c17f32b5bRomain Guy case ARGB_8888: 813feeea8f07c854e6b0ae2fec3aa2d239c17f32b5bRomain Guy default: 814feeea8f07c854e6b0ae2fec3aa2d239c17f32b5bRomain Guy newConfig = Config.ARGB_8888; 815feeea8f07c854e6b0ae2fec3aa2d239c17f32b5bRomain Guy break; 816feeea8f07c854e6b0ae2fec3aa2d239c17f32b5bRomain Guy } 817feeea8f07c854e6b0ae2fec3aa2d239c17f32b5bRomain Guy } 818d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy 8199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (m == null || m.isIdentity()) { 820d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy bitmap = createBitmap(neww, newh, newConfig, source.hasAlpha()); 8219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint = null; // not needed 8229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 823d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy final boolean transformed = !m.rectStaysRect(); 824d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy 8259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RectF deviceR = new RectF(); 8269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project m.mapRect(deviceR, dstR); 827d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy 8289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project neww = Math.round(deviceR.width()); 8299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newh = Math.round(deviceR.height()); 830d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy 8319505a6552764461c22ce48f1ac13d025d23e1579Romain Guy Config transformedConfig = newConfig; 8329505a6552764461c22ce48f1ac13d025d23e1579Romain Guy if (transformed) { 8339505a6552764461c22ce48f1ac13d025d23e1579Romain Guy if (transformedConfig != Config.ARGB_8888 && transformedConfig != Config.RGBA_F16) { 8349505a6552764461c22ce48f1ac13d025d23e1579Romain Guy transformedConfig = Config.ARGB_8888; 8359505a6552764461c22ce48f1ac13d025d23e1579Romain Guy } 8369505a6552764461c22ce48f1ac13d025d23e1579Romain Guy } 8379505a6552764461c22ce48f1ac13d025d23e1579Romain Guy bitmap = createBitmap(neww, newh, transformedConfig, transformed || source.hasAlpha()); 838d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy 8399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.translate(-deviceR.left, -deviceR.top); 8409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.concat(m); 841d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy 8429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint = new Paint(); 8439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint.setFilterBitmap(filter); 844d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy if (transformed) { 8459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint.setAntiAlias(true); 8469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8488790be6de3644e332ec6a17c855da89ffc13a9bfLeon Scroggins III 8499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The new bitmap was created from a known bitmap source so assume that 85011ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn // they use the same density 85111ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn bitmap.mDensity = source.mDensity; 85257ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III bitmap.setHasAlpha(source.hasAlpha()); 85357ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III bitmap.setPremultiplied(source.mRequestPremultiplied); 8548790be6de3644e332ec6a17c855da89ffc13a9bfLeon Scroggins III 85596e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn canvas.setBitmap(bitmap); 85696e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn canvas.drawBitmap(source, srcR, dstR, paint); 8576311d0a079702b29984c0d31937345be105e1a5eDianne Hackborn canvas.setBitmap(null); 85881f97ee47ccf0d011cdc4f38b6ea5c45b70dedc0sergeyv if (isHardware) { 85981f97ee47ccf0d011cdc4f38b6ea5c45b70dedc0sergeyv return bitmap.copy(Config.HARDWARE, false); 86081f97ee47ccf0d011cdc4f38b6ea5c45b70dedc0sergeyv } 8619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return bitmap; 8629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8638cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 8649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 86596e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * Returns a mutable bitmap with the specified width and height. Its 86696e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * initial density is as per {@link #getDensity}. 8679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 8689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param width The width of the bitmap 8699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param height The height of the bitmap 8709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param config The bitmap config to create. 8719fbb0b5ab321d86efbc7fa8774052bfb34de9557sergeyv * @throws IllegalArgumentException if the width or height are <= 0, or if 8729fbb0b5ab321d86efbc7fa8774052bfb34de9557sergeyv * Config is Config.HARDWARE, because hardware bitmaps are always immutable 8739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static Bitmap createBitmap(int width, int height, Config config) { 875d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy return createBitmap(width, height, config, true); 876d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy } 877d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy 878d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy /** 879d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy * Returns a mutable bitmap with the specified width and height. Its 880dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * initial density is determined from the given {@link DisplayMetrics}. 881dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * 882dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param display Display metrics for the display this bitmap will be 883dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * drawn on. 884dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param width The width of the bitmap 885dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param height The height of the bitmap 886dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param config The bitmap config to create. 8879fbb0b5ab321d86efbc7fa8774052bfb34de9557sergeyv * @throws IllegalArgumentException if the width or height are <= 0, or if 8889fbb0b5ab321d86efbc7fa8774052bfb34de9557sergeyv * Config is Config.HARDWARE, because hardware bitmaps are always immutable 889dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn */ 890dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn public static Bitmap createBitmap(DisplayMetrics display, int width, 891dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn int height, Config config) { 892dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn return createBitmap(display, width, height, config, true); 893dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn } 894dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn 895dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn /** 896dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * Returns a mutable bitmap with the specified width and height. Its 897d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy * initial density is as per {@link #getDensity}. 898d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy * 899d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy * @param width The width of the bitmap 900d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy * @param height The height of the bitmap 901d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy * @param config The bitmap config to create. 9029505a6552764461c22ce48f1ac13d025d23e1579Romain Guy * @param hasAlpha If the bitmap is ARGB_8888 or RGBA_16F this flag can be used to 9039505a6552764461c22ce48f1ac13d025d23e1579Romain Guy * mark the bitmap as opaque. Doing so will clear the bitmap in black 904f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck * instead of transparent. 905f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck * 9069fbb0b5ab321d86efbc7fa8774052bfb34de9557sergeyv * @throws IllegalArgumentException if the width or height are <= 0, or if 9079fbb0b5ab321d86efbc7fa8774052bfb34de9557sergeyv * Config is Config.HARDWARE, because hardware bitmaps are always immutable 908d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy */ 9099505a6552764461c22ce48f1ac13d025d23e1579Romain Guy public static Bitmap createBitmap(int width, int height, Config config, boolean hasAlpha) { 910dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn return createBitmap(null, width, height, config, hasAlpha); 911dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn } 912dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn 913dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn /** 914dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * Returns a mutable bitmap with the specified width and height. Its 915dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * initial density is determined from the given {@link DisplayMetrics}. 916dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * 917dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param display Display metrics for the display this bitmap will be 918dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * drawn on. 919dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param width The width of the bitmap 920dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param height The height of the bitmap 921dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param config The bitmap config to create. 9229505a6552764461c22ce48f1ac13d025d23e1579Romain Guy * @param hasAlpha If the bitmap is ARGB_8888 or RGBA_16F this flag can be used to 9239505a6552764461c22ce48f1ac13d025d23e1579Romain Guy * mark the bitmap as opaque. Doing so will clear the bitmap in black 924f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck * instead of transparent. 925f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck * 9269fbb0b5ab321d86efbc7fa8774052bfb34de9557sergeyv * @throws IllegalArgumentException if the width or height are <= 0, or if 9279fbb0b5ab321d86efbc7fa8774052bfb34de9557sergeyv * Config is Config.HARDWARE, because hardware bitmaps are always immutable 928dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn */ 9299505a6552764461c22ce48f1ac13d025d23e1579Romain Guy public static Bitmap createBitmap(DisplayMetrics display, int width, int height, 930dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn Config config, boolean hasAlpha) { 931e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy if (width <= 0 || height <= 0) { 932e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy throw new IllegalArgumentException("width and height must be > 0"); 933e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy } 9349fbb0b5ab321d86efbc7fa8774052bfb34de9557sergeyv if (config == Config.HARDWARE) { 9359fbb0b5ab321d86efbc7fa8774052bfb34de9557sergeyv throw new IllegalArgumentException("can't create mutable bitmap with Config.HARDWARE"); 9369fbb0b5ab321d86efbc7fa8774052bfb34de9557sergeyv } 9379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Bitmap bm = nativeCreate(null, 0, width, width, height, config.nativeInt, true); 938dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn if (display != null) { 939dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn bm.mDensity = display.densityDpi; 940dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn } 9418790be6de3644e332ec6a17c855da89ffc13a9bfLeon Scroggins III bm.setHasAlpha(hasAlpha); 9429505a6552764461c22ce48f1ac13d025d23e1579Romain Guy if ((config == Config.ARGB_8888 || config == Config.RGBA_F16) && !hasAlpha) { 943775873a66a946fae2b0535abb51df9817bd1b20cRichard Uhler nativeErase(bm.mNativePtr, 0xff000000); 944d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy } 9453b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy // No need to initialize the bitmap to zeroes with other configs; 9463b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy // it is backed by a VM byte array which is by definition preinitialized 9473b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy // to all zeroes. 9489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return bm; 9499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9508cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 9519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 9529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns a immutable bitmap with the specified width and height, with each 95396e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * pixel value set to the corresponding value in the colors array. Its 95496e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * initial density is as per {@link #getDensity}. 9559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 9569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param colors Array of {@link Color} used to initialize the pixels. 9579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param offset Number of values to skip before the first color in the 9589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * array of colors. 9599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param stride Number of colors in the array between rows (must be >= 9609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * width or <= -width). 9619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param width The width of the bitmap 9629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param height The height of the bitmap 9639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param config The bitmap config to create. If the config does not 9649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * support per-pixel alpha (e.g. RGB_565), then the alpha 9659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * bytes in the colors[] will be ignored (assumed to be FF) 9669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IllegalArgumentException if the width or height are <= 0, or if 9679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the color array's length is less than the number of pixels. 9689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 9699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static Bitmap createBitmap(int colors[], int offset, int stride, 9709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int width, int height, Config config) { 971dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn return createBitmap(null, colors, offset, stride, width, height, config); 972dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn } 973dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn 974dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn /** 975dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * Returns a immutable bitmap with the specified width and height, with each 976dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * pixel value set to the corresponding value in the colors array. Its 977dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * initial density is determined from the given {@link DisplayMetrics}. 978dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * 979dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param display Display metrics for the display this bitmap will be 980dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * drawn on. 981dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param colors Array of {@link Color} used to initialize the pixels. 982dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param offset Number of values to skip before the first color in the 983dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * array of colors. 984dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param stride Number of colors in the array between rows (must be >= 985dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * width or <= -width). 986dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param width The width of the bitmap 987dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param height The height of the bitmap 988dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param config The bitmap config to create. If the config does not 989dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * support per-pixel alpha (e.g. RGB_565), then the alpha 990dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * bytes in the colors[] will be ignored (assumed to be FF) 991dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @throws IllegalArgumentException if the width or height are <= 0, or if 992dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * the color array's length is less than the number of pixels. 993dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn */ 994dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn public static Bitmap createBitmap(DisplayMetrics display, int colors[], 995dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn int offset, int stride, int width, int height, Config config) { 9969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkWidthHeight(width, height); 9989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (Math.abs(stride) < width) { 9999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("abs(stride) must be >= width"); 10009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int lastScanline = offset + (height - 1) * stride; 10029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int length = colors.length; 10039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (offset < 0 || (offset + width > length) || lastScanline < 0 || 10049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (lastScanline + width > length)) { 10059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new ArrayIndexOutOfBoundsException(); 10069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1007e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy if (width <= 0 || height <= 0) { 1008e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy throw new IllegalArgumentException("width and height must be > 0"); 1009e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy } 1010dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn Bitmap bm = nativeCreate(colors, offset, stride, width, height, 10119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project config.nativeInt, false); 1012dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn if (display != null) { 1013dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn bm.mDensity = display.densityDpi; 1014dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn } 1015dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn return bm; 10169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns a immutable bitmap with the specified width and height, with each 102096e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * pixel value set to the corresponding value in the colors array. Its 102196e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * initial density is as per {@link #getDensity}. 10229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 10239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param colors Array of {@link Color} used to initialize the pixels. 10249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This array must be at least as large as width * height. 10259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param width The width of the bitmap 10269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param height The height of the bitmap 10279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param config The bitmap config to create. If the config does not 10289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * support per-pixel alpha (e.g. RGB_565), then the alpha 10299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * bytes in the colors[] will be ignored (assumed to be FF) 10309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IllegalArgumentException if the width or height are <= 0, or if 10319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the color array's length is less than the number of pixels. 10329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static Bitmap createBitmap(int colors[], int width, int height, Config config) { 1034dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn return createBitmap(null, colors, 0, width, width, height, config); 1035dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn } 1036dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn 1037dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn /** 1038dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * Returns a immutable bitmap with the specified width and height, with each 1039dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * pixel value set to the corresponding value in the colors array. Its 1040dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * initial density is determined from the given {@link DisplayMetrics}. 1041dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * 1042dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param display Display metrics for the display this bitmap will be 1043dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * drawn on. 1044dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param colors Array of {@link Color} used to initialize the pixels. 1045dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * This array must be at least as large as width * height. 1046dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param width The width of the bitmap 1047dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param height The height of the bitmap 1048dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param config The bitmap config to create. If the config does not 1049dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * support per-pixel alpha (e.g. RGB_565), then the alpha 1050dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * bytes in the colors[] will be ignored (assumed to be FF) 1051dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @throws IllegalArgumentException if the width or height are <= 0, or if 1052dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * the color array's length is less than the number of pixels. 1053dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn */ 1054dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn public static Bitmap createBitmap(DisplayMetrics display, int colors[], 1055dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn int width, int height, Config config) { 1056dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn return createBitmap(display, colors, 0, width, width, height, config); 10579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns an optional array of private data, used by the UI system for 10619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * some bitmaps. Not intended to be called by applications. 10629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public byte[] getNinePatchChunk() { 10649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mNinePatchChunk; 10659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1068c054966b719c8a7255f7cf4120cca5050acb68bdAlan Viverette * Populates a rectangle with the bitmap's optical insets. 1069c054966b719c8a7255f7cf4120cca5050acb68bdAlan Viverette * 1070c054966b719c8a7255f7cf4120cca5050acb68bdAlan Viverette * @param outInsets Rect to populate with optical insets 1071ec4a50428d5f26a22df3edaf7e5b08f41d5cb54bAmith Yamasani * @hide 1072ec4a50428d5f26a22df3edaf7e5b08f41d5cb54bAmith Yamasani */ 1073c054966b719c8a7255f7cf4120cca5050acb68bdAlan Viverette public void getOpticalInsets(@NonNull Rect outInsets) { 107447cd8e921db73e894f94ec4729ade90da50996f5Chris Craik if (mNinePatchInsets == null) { 1075c054966b719c8a7255f7cf4120cca5050acb68bdAlan Viverette outInsets.setEmpty(); 1076c054966b719c8a7255f7cf4120cca5050acb68bdAlan Viverette } else { 107747cd8e921db73e894f94ec4729ade90da50996f5Chris Craik outInsets.set(mNinePatchInsets.opticalRect); 1078c054966b719c8a7255f7cf4120cca5050acb68bdAlan Viverette } 1079ec4a50428d5f26a22df3edaf7e5b08f41d5cb54bAmith Yamasani } 1080ec4a50428d5f26a22df3edaf7e5b08f41d5cb54bAmith Yamasani 108147cd8e921db73e894f94ec4729ade90da50996f5Chris Craik /** @hide */ 108247cd8e921db73e894f94ec4729ade90da50996f5Chris Craik public NinePatch.InsetStruct getNinePatchInsets() { 108347cd8e921db73e894f94ec4729ade90da50996f5Chris Craik return mNinePatchInsets; 108447cd8e921db73e894f94ec4729ade90da50996f5Chris Craik } 108547cd8e921db73e894f94ec4729ade90da50996f5Chris Craik 1086ec4a50428d5f26a22df3edaf7e5b08f41d5cb54bAmith Yamasani /** 10879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Specifies the known formats a bitmap can be compressed into 10889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public enum CompressFormat { 10909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project JPEG (0), 10912305ac9e4a262ed09fd034ae417e9b1dda4c0ccbVikas Arora PNG (1), 10922305ac9e4a262ed09fd034ae417e9b1dda4c0ccbVikas Arora WEBP (2); 10939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project CompressFormat(int nativeInt) { 10959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this.nativeInt = nativeInt; 10969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int nativeInt; 10989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Number of bytes of temp storage we use for communicating between the 11029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * native compressor and the java OutputStream. 11039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private final static int WORKING_COMPRESS_STORAGE = 4096; 11059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Write a compressed version of the bitmap to the specified outputstream. 11089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * If this returns true, the bitmap can be reconstructed by passing a 11099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * corresponding inputstream to BitmapFactory.decodeStream(). Note: not 11109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * all Formats support all bitmap configs directly, so it is possible that 11119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the returned bitmap from BitmapFactory could be in a different bitdepth, 11129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * and/or may have lost per-pixel alpha (e.g. JPEG only supports opaque 11139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * pixels). 11149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 11159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param format The format of the compressed image 11169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param quality Hint to the compressor, 0-100. 0 meaning compress for 11179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * small size, 100 meaning compress for max quality. Some 11189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * formats, like PNG which is lossless, will ignore the 11199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * quality setting 11209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param stream The outputstream to write the compressed data. 11219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if successfully compressed to the specified stream. 11229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean compress(CompressFormat format, int quality, OutputStream stream) { 11249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRecycled("Can't compress a recycled bitmap"); 11259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // do explicit check before calling the native method 11269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (stream == null) { 11279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new NullPointerException(); 11289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (quality < 0 || quality > 100) { 11309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("quality must be 0..100"); 11319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11320df3bd5594bbbbfbf6058ecb31e9b94a1cd22f7dJohn Reck Trace.traceBegin(Trace.TRACE_TAG_RESOURCES, "Bitmap.compress"); 1133775873a66a946fae2b0535abb51df9817bd1b20cRichard Uhler boolean result = nativeCompress(mNativePtr, format.nativeInt, 1134f29ed28c7b878ef28058bc730715d0d32445bc57John Reck quality, stream, new byte[WORKING_COMPRESS_STORAGE]); 11350df3bd5594bbbbfbf6058ecb31e9b94a1cd22f7dJohn Reck Trace.traceEnd(Trace.TRACE_TAG_RESOURCES); 11360df3bd5594bbbbfbf6058ecb31e9b94a1cd22f7dJohn Reck return result; 11379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11388cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 11399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1140ff236f5fc1a088b1210d37a67b0e88b06c0fbdb2Newton Allen * Returns true if the bitmap is marked as mutable (i.e. can be drawn into) 11419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final boolean isMutable() { 11439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mIsMutable; 11449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11463849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy /** 11473849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * <p>Indicates whether pixels stored in this bitmaps are stored pre-multiplied. 11483849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * When a pixel is pre-multiplied, the RGB components have been multiplied by 11493849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * the alpha component. For instance, if the original color is a 50% 1150f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck * translucent red <code>(128, 255, 0, 0)</code>, the pre-multiplied form is 11513849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * <code>(128, 128, 0, 0)</code>.</p> 1152f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck * 11533849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * <p>This method always returns false if {@link #getConfig()} is 11544ff0cf4b83605bff630c4e6f1fabe4f72a3f93a1Romain Guy * {@link Bitmap.Config#RGB_565}.</p> 1155f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck * 115657ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III * <p>The return value is undefined if {@link #getConfig()} is 115757ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III * {@link Bitmap.Config#ALPHA_8}.</p> 115857ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III * 11594ff0cf4b83605bff630c4e6f1fabe4f72a3f93a1Romain Guy * <p>This method only returns true if {@link #hasAlpha()} returns true. 11604ff0cf4b83605bff630c4e6f1fabe4f72a3f93a1Romain Guy * A bitmap with no alpha channel can be used both as a pre-multiplied and 11614ff0cf4b83605bff630c4e6f1fabe4f72a3f93a1Romain Guy * as a non pre-multiplied bitmap.</p> 11621abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * 11631abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * <p>Only pre-multiplied bitmaps may be drawn by the view system or 11641abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * {@link Canvas}. If a non-pre-multiplied bitmap with an alpha channel is 11651abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * drawn to a Canvas, a RuntimeException will be thrown.</p> 11661abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * 11673849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * @return true if the underlying pixels have been pre-multiplied, false 11683849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * otherwise 11691abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * 11701abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * @see Bitmap#setPremultiplied(boolean) 11711abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * @see BitmapFactory.Options#inPremultiplied 11723849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy */ 11733849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy public final boolean isPremultiplied() { 117401a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck if (mRecycled) { 117501a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck Log.w(TAG, "Called isPremultiplied() on a recycle()'d bitmap! This is undefined behavior!"); 117601a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck } 1177775873a66a946fae2b0535abb51df9817bd1b20cRichard Uhler return nativeIsPremultiplied(mNativePtr); 11781abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik } 11791abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik 11801abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik /** 11811abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * Sets whether the bitmap should treat its data as pre-multiplied. 11821abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * 11831abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * <p>Bitmaps are always treated as pre-multiplied by the view system and 11841abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * {@link Canvas} for performance reasons. Storing un-pre-multiplied data in 11851abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * a Bitmap (through {@link #setPixel}, {@link #setPixels}, or {@link 11861abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * BitmapFactory.Options#inPremultiplied BitmapFactory.Options.inPremultiplied}) 11871abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * can lead to incorrect blending if drawn by the framework.</p> 11881abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * 11891abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * <p>This method will not affect the behavior of a bitmap without an alpha 11901abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * channel, or if {@link #hasAlpha()} returns false.</p> 11911abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * 1192889a1ddd00b74933d5f7daa651d98133bcb034baBen Murdoch * <p>Calling {@link #createBitmap} or {@link #createScaledBitmap} with a source 11938790be6de3644e332ec6a17c855da89ffc13a9bfLeon Scroggins III * Bitmap whose colors are not pre-multiplied may result in a RuntimeException, 11948790be6de3644e332ec6a17c855da89ffc13a9bfLeon Scroggins III * since those functions require drawing the source, which is not supported for 11958790be6de3644e332ec6a17c855da89ffc13a9bfLeon Scroggins III * un-pre-multiplied Bitmaps.</p> 11968790be6de3644e332ec6a17c855da89ffc13a9bfLeon Scroggins III * 11971abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * @see Bitmap#isPremultiplied() 11981abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * @see BitmapFactory.Options#inPremultiplied 11991abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik */ 12001abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik public final void setPremultiplied(boolean premultiplied) { 12013e776dee3e8af646cdcfb7a60e0e301c99f05293John Reck checkRecycled("setPremultiplied called on a recycled bitmap"); 120257ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III mRequestPremultiplied = premultiplied; 1203775873a66a946fae2b0535abb51df9817bd1b20cRichard Uhler nativeSetPremultiplied(mNativePtr, premultiplied); 12043849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy } 12053849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy 12069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** Returns the bitmap's width */ 12079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final int getWidth() { 120801a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck if (mRecycled) { 120901a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck Log.w(TAG, "Called getWidth() on a recycle()'d bitmap! This is undefined behavior!"); 121001a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck } 12111abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik return mWidth; 12129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** Returns the bitmap's height */ 12159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final int getHeight() { 121601a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck if (mRecycled) { 121701a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck Log.w(TAG, "Called getHeight() on a recycle()'d bitmap! This is undefined behavior!"); 121801a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck } 12191abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik return mHeight; 12209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12218cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 12229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 122311ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * Convenience for calling {@link #getScaledWidth(int)} with the target 122411ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * density of the given {@link Canvas}. 12259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12262784ff0af88128f66ae690b73d48fb7e4a211e68Dianne Hackborn public int getScaledWidth(Canvas canvas) { 122711ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn return scaleFromDensity(getWidth(), mDensity, canvas.mDensity); 12282784ff0af88128f66ae690b73d48fb7e4a211e68Dianne Hackborn } 12292784ff0af88128f66ae690b73d48fb7e4a211e68Dianne Hackborn 12302784ff0af88128f66ae690b73d48fb7e4a211e68Dianne Hackborn /** 123111ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * Convenience for calling {@link #getScaledHeight(int)} with the target 123211ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * density of the given {@link Canvas}. 12332784ff0af88128f66ae690b73d48fb7e4a211e68Dianne Hackborn */ 12342784ff0af88128f66ae690b73d48fb7e4a211e68Dianne Hackborn public int getScaledHeight(Canvas canvas) { 123511ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn return scaleFromDensity(getHeight(), mDensity, canvas.mDensity); 123611ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn } 123711ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn 123811ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn /** 123911ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * Convenience for calling {@link #getScaledWidth(int)} with the target 124011ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * density of the given {@link DisplayMetrics}. 124111ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn */ 124211ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn public int getScaledWidth(DisplayMetrics metrics) { 124311ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn return scaleFromDensity(getWidth(), mDensity, metrics.densityDpi); 124411ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn } 124511ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn 124611ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn /** 124711ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * Convenience for calling {@link #getScaledHeight(int)} with the target 124811ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * density of the given {@link DisplayMetrics}. 124911ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn */ 125011ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn public int getScaledHeight(DisplayMetrics metrics) { 125111ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn return scaleFromDensity(getHeight(), mDensity, metrics.densityDpi); 12522784ff0af88128f66ae690b73d48fb7e4a211e68Dianne Hackborn } 12532784ff0af88128f66ae690b73d48fb7e4a211e68Dianne Hackborn 12542784ff0af88128f66ae690b73d48fb7e4a211e68Dianne Hackborn /** 12552784ff0af88128f66ae690b73d48fb7e4a211e68Dianne Hackborn * Convenience method that returns the width of this bitmap divided 12562784ff0af88128f66ae690b73d48fb7e4a211e68Dianne Hackborn * by the density scale factor. 12572784ff0af88128f66ae690b73d48fb7e4a211e68Dianne Hackborn * 125811ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @param targetDensity The density of the target canvas of the bitmap. 12592784ff0af88128f66ae690b73d48fb7e4a211e68Dianne Hackborn * @return The scaled width of this bitmap, according to the density scale factor. 12602784ff0af88128f66ae690b73d48fb7e4a211e68Dianne Hackborn */ 126111ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn public int getScaledWidth(int targetDensity) { 126211ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn return scaleFromDensity(getWidth(), mDensity, targetDensity); 12639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Convenience method that returns the height of this bitmap divided 12679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * by the density scale factor. 12689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 126911ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @param targetDensity The density of the target canvas of the bitmap. 12709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The scaled height of this bitmap, according to the density scale factor. 12719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 127211ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn public int getScaledHeight(int targetDensity) { 127311ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn return scaleFromDensity(getHeight(), mDensity, targetDensity); 127411ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn } 1275f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck 127611ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn /** 127711ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @hide 127811ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn */ 127911ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn static public int scaleFromDensity(int size, int sdensity, int tdensity) { 12800b68477f8287fe5ddac1beb1c9d0811ded034dadRomain Guy if (sdensity == DENSITY_NONE || tdensity == DENSITY_NONE || sdensity == tdensity) { 128111ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn return size; 12822784ff0af88128f66ae690b73d48fb7e4a211e68Dianne Hackborn } 1283f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck 128411ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn // Scale by tdensity / sdensity, rounding up. 1285366a84056c9a695ee6702d9d30bf9f3b521ba7ccRomain Guy return ((size * tdensity) + (sdensity >> 1)) / sdensity; 12869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1287f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck 12889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Return the number of bytes between rows in the bitmap's pixels. Note that 12909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this refers to the pixels as stored natively by the bitmap. If you call 12919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * getPixels() or setPixels(), then the pixels are uniformly treated as 12929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 32bit values, packed according to the Color class. 12939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1294e8222dddaf2e3da14380101e818d4254899e0c0dChet Haase * <p>As of {@link android.os.Build.VERSION_CODES#KITKAT}, this method 12959f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik * should not be used to calculate the memory usage of the bitmap. Instead, 12969f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik * see {@link #getAllocationByteCount()}. 12979f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik * 12989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return number of bytes between rows of the native bitmap pixels. 12999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final int getRowBytes() { 130101a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck if (mRecycled) { 130201a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck Log.w(TAG, "Called getRowBytes() on a recycle()'d bitmap! This is undefined behavior!"); 130301a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck } 1304775873a66a946fae2b0535abb51df9817bd1b20cRichard Uhler return nativeRowBytes(mNativePtr); 13059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13068cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 13079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13089f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik * Returns the minimum number of bytes that can be used to store this bitmap's pixels. 13099f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik * 1310e8222dddaf2e3da14380101e818d4254899e0c0dChet Haase * <p>As of {@link android.os.Build.VERSION_CODES#KITKAT}, the result of this method can 13119f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik * no longer be used to determine memory usage of a bitmap. See {@link 1312c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * #getAllocationByteCount()}.</p> 1313f7f9d9c39df22ad6929f001f07588469f77e8bf5Jesse Wilson */ 1314f7f9d9c39df22ad6929f001f07588469f77e8bf5Jesse Wilson public final int getByteCount() { 13153bdecbf0fd2d4b6137477094e1ea96502c353248John Reck if (mRecycled) { 13163bdecbf0fd2d4b6137477094e1ea96502c353248John Reck Log.w(TAG, "Called getByteCount() on a recycle()'d bitmap! " 13173bdecbf0fd2d4b6137477094e1ea96502c353248John Reck + "This is undefined behavior!"); 13183bdecbf0fd2d4b6137477094e1ea96502c353248John Reck return 0; 13193bdecbf0fd2d4b6137477094e1ea96502c353248John Reck } 1320f7f9d9c39df22ad6929f001f07588469f77e8bf5Jesse Wilson // int result permits bitmaps up to 46,340 x 46,340 1321f7f9d9c39df22ad6929f001f07588469f77e8bf5Jesse Wilson return getRowBytes() * getHeight(); 1322f7f9d9c39df22ad6929f001f07588469f77e8bf5Jesse Wilson } 1323f7f9d9c39df22ad6929f001f07588469f77e8bf5Jesse Wilson 1324f7f9d9c39df22ad6929f001f07588469f77e8bf5Jesse Wilson /** 13259f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik * Returns the size of the allocated memory used to store this bitmap's pixels. 13269f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik * 13279f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik * <p>This can be larger than the result of {@link #getByteCount()} if a bitmap is reused to 1328c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * decode other bitmaps of smaller size, or by manual reconfiguration. See {@link 1329c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * #reconfigure(int, int, Config)}, {@link #setWidth(int)}, {@link #setHeight(int)}, {@link 1330c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * #setConfig(Bitmap.Config)}, and {@link BitmapFactory.Options#inBitmap 1331c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * BitmapFactory.Options.inBitmap}. If a bitmap is not modified in this way, this value will be 1332c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * the same as that returned by {@link #getByteCount()}.</p> 1333c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * 1334c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * <p>This value will not change over the lifetime of a Bitmap.</p> 13359f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik * 1336c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * @see #reconfigure(int, int, Config) 13379f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik */ 13389f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik public final int getAllocationByteCount() { 13393bdecbf0fd2d4b6137477094e1ea96502c353248John Reck if (mRecycled) { 13403bdecbf0fd2d4b6137477094e1ea96502c353248John Reck Log.w(TAG, "Called getAllocationByteCount() on a recycle()'d bitmap! " 13413bdecbf0fd2d4b6137477094e1ea96502c353248John Reck + "This is undefined behavior!"); 13423bdecbf0fd2d4b6137477094e1ea96502c353248John Reck return 0; 13433bdecbf0fd2d4b6137477094e1ea96502c353248John Reck } 13444508218850faedea95371188da587b6734f5f3dasergeyv return nativeGetAllocationByteCount(mNativePtr); 13459f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik } 13469f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik 13479f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik /** 13489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * If the bitmap's internal config is in one of the public formats, return 13499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * that config, otherwise return null. 13509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final Config getConfig() { 135201a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck if (mRecycled) { 135301a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck Log.w(TAG, "Called getConfig() on a recycle()'d bitmap! This is undefined behavior!"); 135401a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck } 1355775873a66a946fae2b0535abb51df9817bd1b20cRichard Uhler return Config.nativeToConfig(nativeConfig(mNativePtr)); 13569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1358a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed /** Returns true if the bitmap's config supports per-pixel alpha, and 1359a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed * if the pixels may contain non-opaque alpha values. For some configs, 1360a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed * this is always false (e.g. RGB_565), since they do not support per-pixel 1361a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed * alpha. However, for configs that do, the bitmap may be flagged to be 1362a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed * known that all of its pixels are opaque. In this case hasAlpha() will 1363a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed * also return false. If a config such as ARGB_8888 is not so flagged, 1364a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed * it will return true by default. 1365a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed */ 13669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final boolean hasAlpha() { 136701a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck if (mRecycled) { 136801a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck Log.w(TAG, "Called hasAlpha() on a recycle()'d bitmap! This is undefined behavior!"); 136901a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck } 1370775873a66a946fae2b0535abb51df9817bd1b20cRichard Uhler return nativeHasAlpha(mNativePtr); 13719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1374a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed * Tell the bitmap if all of the pixels are known to be opaque (false) 1375a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed * or if some of the pixels may contain non-opaque alpha values (true). 1376366a84056c9a695ee6702d9d30bf9f3b521ba7ccRomain Guy * Note, for some configs (e.g. RGB_565) this call is ignored, since it 1377366a84056c9a695ee6702d9d30bf9f3b521ba7ccRomain Guy * does not support per-pixel alpha values. 1378a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed * 1379a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed * This is meant as a drawing hint, as in some cases a bitmap that is known 1380a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed * to be opaque can take a faster drawing case than one that may have 1381a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed * non-opaque per-pixel alpha values. 1382a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed */ 1383a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed public void setHasAlpha(boolean hasAlpha) { 13843e776dee3e8af646cdcfb7a60e0e301c99f05293John Reck checkRecycled("setHasAlpha called on a recycled bitmap"); 1385775873a66a946fae2b0535abb51df9817bd1b20cRichard Uhler nativeSetHasAlpha(mNativePtr, hasAlpha, mRequestPremultiplied); 1386a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed } 1387a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed 1388a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed /** 1389713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * Indicates whether the renderer responsible for drawing this 1390713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * bitmap should attempt to use mipmaps when this bitmap is drawn 1391713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * scaled down. 1392f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck * 1393713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * If you know that you are going to draw this bitmap at less than 1394713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * 50% of its original size, you may be able to obtain a higher 1395713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * quality 1396f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck * 1397713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * This property is only a suggestion that can be ignored by the 1398713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * renderer. It is not guaranteed to have any effect. 1399f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck * 1400713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * @return true if the renderer should attempt to use mipmaps, 1401713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * false otherwise 1402f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck * 1403713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * @see #setHasMipMap(boolean) 1404713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy */ 1405713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy public final boolean hasMipMap() { 140601a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck if (mRecycled) { 140701a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck Log.w(TAG, "Called hasMipMap() on a recycle()'d bitmap! This is undefined behavior!"); 140801a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck } 1409775873a66a946fae2b0535abb51df9817bd1b20cRichard Uhler return nativeHasMipMap(mNativePtr); 1410713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy } 1411713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy 1412713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy /** 1413713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * Set a hint for the renderer responsible for drawing this bitmap 1414713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * indicating that it should attempt to use mipmaps when this bitmap 1415713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * is drawn scaled down. 1416713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * 1417713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * If you know that you are going to draw this bitmap at less than 1418713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * 50% of its original size, you may be able to obtain a higher 1419713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * quality by turning this property on. 1420f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck * 1421713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * Note that if the renderer respects this hint it might have to 1422713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * allocate extra memory to hold the mipmap levels for this bitmap. 1423713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * 1424713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * This property is only a suggestion that can be ignored by the 1425713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * renderer. It is not guaranteed to have any effect. 1426713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * 1427713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * @param hasMipMap indicates whether the renderer should attempt 1428713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * to use mipmaps 1429713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * 1430713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * @see #hasMipMap() 1431713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy */ 1432713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy public final void setHasMipMap(boolean hasMipMap) { 14333e776dee3e8af646cdcfb7a60e0e301c99f05293John Reck checkRecycled("setHasMipMap called on a recycled bitmap"); 1434775873a66a946fae2b0535abb51df9817bd1b20cRichard Uhler nativeSetHasMipMap(mNativePtr, hasMipMap); 1435713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy } 1436713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy 1437713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy /** 14389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fills the bitmap's pixels with the specified {@link Color}. 14399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IllegalStateException if the bitmap is not mutable. 14419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 144280756e38882720860db52f1fcc21fa1505a02abfTor Norbye public void eraseColor(@ColorInt int c) { 14439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRecycled("Can't erase a recycled bitmap"); 14449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!isMutable()) { 14459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalStateException("cannot erase immutable bitmaps"); 14469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1447775873a66a946fae2b0535abb51df9817bd1b20cRichard Uhler nativeErase(mNativePtr, c); 14489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the {@link Color} at the specified location. Throws an exception 14529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * if x or y are out of bounds (negative or >= to the width or height 14533849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * respectively). The returned color is a non-premultiplied ARGB value. 14549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x The x coordinate (0...width-1) of the pixel to return 14569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y The y coordinate (0...height-1) of the pixel to return 14579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The argb {@link Color} at the specified coordinate 14589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IllegalArgumentException if x, y exceed the bitmap's bounds 145957eafc6f90a1ce2dd97079dd82b4b2f8dcd9e00fsergeyv * @throws IllegalStateException if the bitmap's config is {@link Config#HARDWARE} 14609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 146180756e38882720860db52f1fcc21fa1505a02abfTor Norbye @ColorInt 14629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getPixel(int x, int y) { 14639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRecycled("Can't call getPixel() on a recycled bitmap"); 1464980bead518fc5ddb52ae8d00258f91b087c1f91asergeyv checkHardware("unable to getPixel(), " 1465980bead518fc5ddb52ae8d00258f91b087c1f91asergeyv + "pixel access is not supported on Config#HARDWARE bitmaps"); 14669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkPixelAccess(x, y); 1467775873a66a946fae2b0535abb51df9817bd1b20cRichard Uhler return nativeGetPixel(mNativePtr, x, y); 14689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14698cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 14709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns in pixels[] a copy of the data in the bitmap. Each value is 14729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * a packed int representing a {@link Color}. The stride parameter allows 14739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the caller to allow for gaps in the returned pixels array between 14749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * rows. For normal packed results, just pass width for the stride value. 14753849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * The returned colors are non-premultiplied ARGB values. 14769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param pixels The array to receive the bitmap's colors 14789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param offset The first index to write into pixels[] 14799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param stride The number of entries in pixels[] to skip between 14809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * rows (must be >= bitmap's width). Can be negative. 14819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x The x coordinate of the first pixel to read from 14829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bitmap 14839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y The y coordinate of the first pixel to read from 14849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bitmap 14859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param width The number of pixels to read from each row 14869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param height The number of rows to read 14873849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * 14889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IllegalArgumentException if x, y, width, height exceed the 14899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * bounds of the bitmap, or if abs(stride) < width. 14909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws ArrayIndexOutOfBoundsException if the pixels array is too small 14919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to receive the specified number of pixels. 149257eafc6f90a1ce2dd97079dd82b4b2f8dcd9e00fsergeyv * @throws IllegalStateException if the bitmap's config is {@link Config#HARDWARE} 14939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 149480756e38882720860db52f1fcc21fa1505a02abfTor Norbye public void getPixels(@ColorInt int[] pixels, int offset, int stride, 14959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int x, int y, int width, int height) { 14969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRecycled("Can't call getPixels() on a recycled bitmap"); 1497980bead518fc5ddb52ae8d00258f91b087c1f91asergeyv checkHardware("unable to getPixels(), " 1498980bead518fc5ddb52ae8d00258f91b087c1f91asergeyv + "pixel access is not supported on Config#HARDWARE bitmaps"); 14999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (width == 0 || height == 0) { 15009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; // nothing to do 15019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkPixelsAccess(x, y, width, height, offset, stride, pixels); 1503775873a66a946fae2b0535abb51df9817bd1b20cRichard Uhler nativeGetPixels(mNativePtr, pixels, offset, stride, 150457ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III x, y, width, height); 15059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15068cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 15079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Shared code to check for illegal arguments passed to getPixel() 15099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * or setPixel() 1510f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck * 15119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x x coordinate of the pixel 15129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y y coordinate of the pixel 15139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void checkPixelAccess(int x, int y) { 15159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkXYSign(x, y); 15169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (x >= getWidth()) { 15179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("x must be < bitmap.width()"); 15189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (y >= getHeight()) { 15209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("y must be < bitmap.height()"); 15219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Shared code to check for illegal arguments passed to getPixels() 15269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * or setPixels() 15279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x left edge of the area of pixels to access 15299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y top edge of the area of pixels to access 15309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param width width of the area of pixels to access 15319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param height height of the area of pixels to access 15329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param offset offset into pixels[] array 15339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param stride number of elements in pixels[] between each logical row 15349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param pixels array to hold the area of pixels being accessed 15359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void checkPixelsAccess(int x, int y, int width, int height, 15379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int offset, int stride, int pixels[]) { 15389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkXYSign(x, y); 15399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (width < 0) { 15409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("width must be >= 0"); 15419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height < 0) { 15439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("height must be >= 0"); 15449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (x + width > getWidth()) { 15469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException( 15479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "x + width must be <= bitmap.width()"); 15489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (y + height > getHeight()) { 15509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException( 15519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "y + height must be <= bitmap.height()"); 15529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (Math.abs(stride) < width) { 15549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("abs(stride) must be >= width"); 15559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int lastScanline = offset + (height - 1) * stride; 15579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int length = pixels.length; 15589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (offset < 0 || (offset + width > length) 15599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project || lastScanline < 0 15609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project || (lastScanline + width > length)) { 15619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new ArrayIndexOutOfBoundsException(); 15629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15648cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 15659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15663849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * <p>Write the specified {@link Color} into the bitmap (assuming it is 15673849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * mutable) at the x,y coordinate. The color must be a 15683849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * non-premultiplied ARGB value.</p> 15699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x The x coordinate of the pixel to replace (0...width-1) 15719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y The y coordinate of the pixel to replace (0...height-1) 15723849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * @param color The ARGB color to write into the bitmap 15733849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * 15749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IllegalStateException if the bitmap is not mutable 15759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IllegalArgumentException if x, y are outside of the bitmap's 15769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * bounds. 15779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 157880756e38882720860db52f1fcc21fa1505a02abfTor Norbye public void setPixel(int x, int y, @ColorInt int color) { 15799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRecycled("Can't call setPixel() on a recycled bitmap"); 15809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!isMutable()) { 15819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalStateException(); 15829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkPixelAccess(x, y); 1584775873a66a946fae2b0535abb51df9817bd1b20cRichard Uhler nativeSetPixel(mNativePtr, x, y, color); 15859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15868cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 15879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15883849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * <p>Replace pixels in the bitmap with the colors in the array. Each element 15899505a6552764461c22ce48f1ac13d025d23e1579Romain Guy * in the array is a packed int representing a non-premultiplied ARGB 15903849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * {@link Color}.</p> 15919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param pixels The colors to write to the bitmap 15939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param offset The index of the first color to read from pixels[] 15949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param stride The number of colors in pixels[] to skip between rows. 15959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Normally this value will be the same as the width of 15969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bitmap, but it can be larger (or negative). 15979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x The x coordinate of the first pixel to write to in 15989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bitmap. 15999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y The y coordinate of the first pixel to write to in 16009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bitmap. 16019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param width The number of colors to copy from pixels[] per row 16029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param height The number of rows to write to the bitmap 16033849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * 16049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IllegalStateException if the bitmap is not mutable 16059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IllegalArgumentException if x, y, width, height are outside of 16069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bitmap's bounds. 16079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws ArrayIndexOutOfBoundsException if the pixels array is too small 16089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to receive the specified number of pixels. 16099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 161080756e38882720860db52f1fcc21fa1505a02abfTor Norbye public void setPixels(@ColorInt int[] pixels, int offset, int stride, 16113849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy int x, int y, int width, int height) { 16129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRecycled("Can't call setPixels() on a recycled bitmap"); 16139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!isMutable()) { 16149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalStateException(); 16159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (width == 0 || height == 0) { 16179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; // nothing to do 16189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkPixelsAccess(x, y, width, height, offset, stride, pixels); 1620775873a66a946fae2b0535abb51df9817bd1b20cRichard Uhler nativeSetPixels(mNativePtr, pixels, offset, stride, 162157ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III x, y, width, height); 16229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16238cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 16249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final Parcelable.Creator<Bitmap> CREATOR 16259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project = new Parcelable.Creator<Bitmap>() { 16269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rebuilds a bitmap previously stored with writeToParcel(). 16289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param p Parcel object to read the bitmap from 16309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return a new bitmap created from the data in the parcel 16319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Bitmap createFromParcel(Parcel p) { 16339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Bitmap bm = nativeCreateFromParcel(p); 16349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (bm == null) { 16359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException("Failed to unparcel Bitmap"); 16369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return bm; 16389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Bitmap[] newArray(int size) { 16409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new Bitmap[size]; 16419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }; 16439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * No special parcel contents. 16469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int describeContents() { 1648b6377170960d40e66858d8b4d335a95eac773762Bart Sears return 0; 16499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Write the bitmap and its pixels to the parcel. The bitmap can be 16539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * rebuilt from the parcel by calling CREATOR.createFromParcel(). 1654f161dce70eab5ba1011bd26226c14e31675d5955sergeyv * 1655f161dce70eab5ba1011bd26226c14e31675d5955sergeyv * If this bitmap is {@link Config#HARDWARE}, it may be unparceled with a different pixel 1656f161dce70eab5ba1011bd26226c14e31675d5955sergeyv * format (e.g. 565, 8888), but the content will be preserved to the best quality permitted 1657f161dce70eab5ba1011bd26226c14e31675d5955sergeyv * by the final pixel format 16589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param p Parcel object to write the bitmap data into 16599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void writeToParcel(Parcel p, int flags) { 16619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRecycled("Can't parcel a recycled bitmap"); 1662775873a66a946fae2b0535abb51df9817bd1b20cRichard Uhler if (!nativeWriteToParcel(mNativePtr, mIsMutable, mDensity, p)) { 16639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException("native writeToParcel failed"); 16649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns a new bitmap that captures the alpha values of the original. 16699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This may be drawn with Canvas.drawBitmap(), where the color(s) will be 16709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * taken from the paint that is passed to the draw call. 16719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return new bitmap containing the alpha channel of the original bitmap. 16739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16741c2bf03d1082fc6b7eb42cbd163c60c07cf2bcccTor Norbye @CheckResult 16759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Bitmap extractAlpha() { 16769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return extractAlpha(null, null); 16779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16788cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 16799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns a new bitmap that captures the alpha values of the original. 16819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * These values may be affected by the optional Paint parameter, which 16829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * can contain its own alpha, and may also contain a MaskFilter which 16839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * could change the actual dimensions of the resulting bitmap (e.g. 16849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * a blur maskfilter might enlarge the resulting bitmap). If offsetXY 16859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is not null, it returns the amount to offset the returned bitmap so 16869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * that it will logically align with the original. For example, if the 16879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * paint contains a blur of radius 2, then offsetXY[] would contains 16889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * -2, -2, so that drawing the alpha bitmap offset by (-2, -2) and then 16899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * drawing the original would result in the blur visually aligning with 16909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the original. 1691f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck * 169296e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * <p>The initial density of the returned bitmap is the same as the original's. 1693f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck * 16949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint Optional paint used to modify the alpha values in the 16959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * resulting bitmap. Pass null for default behavior. 16969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param offsetXY Optional array that returns the X (index 0) and Y 16979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (index 1) offset needed to position the returned bitmap 16989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * so that it visually lines up with the original. 16999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return new bitmap containing the (optionally modified by paint) alpha 17009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * channel of the original bitmap. This may be drawn with 17019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Canvas.drawBitmap(), where the color(s) will be taken from the 17029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * paint that is passed to the draw call. 17039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 17041c2bf03d1082fc6b7eb42cbd163c60c07cf2bcccTor Norbye @CheckResult 17059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Bitmap extractAlpha(Paint paint, int[] offsetXY) { 17069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRecycled("Can't extractAlpha on a recycled bitmap"); 1707dfba4d3d11bbf47dff45f94d61d4d97510b3034aDerek Sollenberger long nativePaint = paint != null ? paint.getNativeInstance() : 0; 1708775873a66a946fae2b0535abb51df9817bd1b20cRichard Uhler Bitmap bm = nativeExtractAlpha(mNativePtr, nativePaint, offsetXY); 17099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (bm == null) { 17109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException("Failed to extractAlpha on Bitmap"); 17119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 171296e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn bm.mDensity = mDensity; 17139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return bm; 17149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17168cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen /** 171776d1e01d5e65c4631c827831e98ad4e300d99eabMike Reed * Given another bitmap, return true if it has the same dimensions, config, 171876d1e01d5e65c4631c827831e98ad4e300d99eabMike Reed * and pixel data as this bitmap. If any of those differ, return false. 171976d1e01d5e65c4631c827831e98ad4e300d99eabMike Reed * If other is null, return false. 172076d1e01d5e65c4631c827831e98ad4e300d99eabMike Reed */ 172176d1e01d5e65c4631c827831e98ad4e300d99eabMike Reed public boolean sameAs(Bitmap other) { 17229298c5414172344f2462beda70e624af5f774483John Reck checkRecycled("Can't call sameAs on a recycled bitmap!"); 17233df4869a77bdeb72d5810bbcf7819ed1b8dd0ec7John Reck if (this == other) return true; 17243df4869a77bdeb72d5810bbcf7819ed1b8dd0ec7John Reck if (other == null) return false; 17259298c5414172344f2462beda70e624af5f774483John Reck if (other.isRecycled()) { 17269298c5414172344f2462beda70e624af5f774483John Reck throw new IllegalArgumentException("Can't compare to a recycled bitmap!"); 17279298c5414172344f2462beda70e624af5f774483John Reck } 1728775873a66a946fae2b0535abb51df9817bd1b20cRichard Uhler return nativeSameAs(mNativePtr, other.mNativePtr); 172976d1e01d5e65c4631c827831e98ad4e300d99eabMike Reed } 173076d1e01d5e65c4631c827831e98ad4e300d99eabMike Reed 173176d1e01d5e65c4631c827831e98ad4e300d99eabMike Reed /** 17328cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen * Rebuilds any caches associated with the bitmap that are used for 17338cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen * drawing it. In the case of purgeable bitmaps, this call will attempt to 17348cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen * ensure that the pixels have been decoded. 17358cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen * If this is called on more than one bitmap in sequence, the priority is 17368cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen * given in LRU order (i.e. the last bitmap called will be given highest 17378cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen * priority). 17388cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen * 17398cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen * For bitmaps with no associated caches, this call is effectively a no-op, 17408cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen * and therefore is harmless. 17418cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen */ 17428cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen public void prepareToDraw() { 1743ad57442fd00e7fd7f1885d23372ec5c85e176820John Reck checkRecycled("Can't prepareToDraw on a recycled bitmap!"); 17444387190d8ec9fe4e953fcfeb093a644b82cf85edJohn Reck // Kick off an update/upload of the bitmap outside of the normal 17454387190d8ec9fe4e953fcfeb093a644b82cf85edJohn Reck // draw path. 17464387190d8ec9fe4e953fcfeb093a644b82cf85edJohn Reck nativePrepareToDraw(mNativePtr); 1747f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck } 1748f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck 17496e3658a63843096058ed444d073fbcd191fd7e1bsergeyv /** 17506e3658a63843096058ed444d073fbcd191fd7e1bsergeyv * 17516e3658a63843096058ed444d073fbcd191fd7e1bsergeyv * @return {@link GraphicBuffer} which is internally used by hardware bitmap 17526e3658a63843096058ed444d073fbcd191fd7e1bsergeyv * @hide 17536e3658a63843096058ed444d073fbcd191fd7e1bsergeyv */ 17546e3658a63843096058ed444d073fbcd191fd7e1bsergeyv public GraphicBuffer createGraphicBufferHandle() { 17556e3658a63843096058ed444d073fbcd191fd7e1bsergeyv return nativeCreateGraphicBufferHandle(mNativePtr); 17566e3658a63843096058ed444d073fbcd191fd7e1bsergeyv } 17576e3658a63843096058ed444d073fbcd191fd7e1bsergeyv 17589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //////////// native methods 17599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native Bitmap nativeCreate(int[] colors, int offset, 17619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int stride, int width, int height, 1762c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik int nativeConfig, boolean mutable); 176336bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat private static native Bitmap nativeCopy(long nativeSrcBitmap, int nativeConfig, 17649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean isMutable); 1765721ae5fec5f1fd4f93aa2a361a0ac298e15ce353Riley Andrews private static native Bitmap nativeCopyAshmem(long nativeSrcBitmap); 1766a5fdde9d15fbdf1aaeb61e1cf0c128af3aeb7b67Winson private static native Bitmap nativeCopyAshmemConfig(long nativeSrcBitmap, int nativeConfig); 1767775873a66a946fae2b0535abb51df9817bd1b20cRichard Uhler private static native long nativeGetNativeFinalizer(); 176836bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat private static native boolean nativeRecycle(long nativeBitmap); 176936bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat private static native void nativeReconfigure(long nativeBitmap, int width, int height, 17704508218850faedea95371188da587b6734f5f3dasergeyv int config, boolean isPremultiplied); 17719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 177236bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat private static native boolean nativeCompress(long nativeBitmap, int format, 17739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int quality, OutputStream stream, 17749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project byte[] tempStorage); 177536bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat private static native void nativeErase(long nativeBitmap, int color); 177636bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat private static native int nativeRowBytes(long nativeBitmap); 177736bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat private static native int nativeConfig(long nativeBitmap); 17788cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 177957ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III private static native int nativeGetPixel(long nativeBitmap, int x, int y); 178036bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat private static native void nativeGetPixels(long nativeBitmap, int[] pixels, 17811abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik int offset, int stride, int x, int y, 178257ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III int width, int height); 17838cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 178457ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III private static native void nativeSetPixel(long nativeBitmap, int x, int y, int color); 178536bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat private static native void nativeSetPixels(long nativeBitmap, int[] colors, 17861abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik int offset, int stride, int x, int y, 178757ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III int width, int height); 178836bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat private static native void nativeCopyPixelsToBuffer(long nativeBitmap, 17899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Buffer dst); 179036bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat private static native void nativeCopyPixelsFromBuffer(long nativeBitmap, Buffer src); 179136bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat private static native int nativeGenerationId(long nativeBitmap); 17929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native Bitmap nativeCreateFromParcel(Parcel p); 17949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // returns true on success 179536bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat private static native boolean nativeWriteToParcel(long nativeBitmap, 17969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean isMutable, 1797de0dfb7b65a02d4dd74c271b558adee0973fc267Dianne Hackborn int density, 17989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Parcel p); 17999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // returns a new bitmap built from the native bitmap's alpha, and the paint 180036bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat private static native Bitmap nativeExtractAlpha(long nativeBitmap, 180136bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat long nativePaint, 18029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] offsetXY); 18039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 180436bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat private static native boolean nativeHasAlpha(long nativeBitmap); 180557ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III private static native boolean nativeIsPremultiplied(long nativeBitmap); 180657ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III private static native void nativeSetPremultiplied(long nativeBitmap, 180757ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III boolean isPremul); 180857ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III private static native void nativeSetHasAlpha(long nativeBitmap, 180957ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III boolean hasAlpha, 181057ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III boolean requestPremul); 181136bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat private static native boolean nativeHasMipMap(long nativeBitmap); 181236bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat private static native void nativeSetHasMipMap(long nativeBitmap, boolean hasMipMap); 181336bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat private static native boolean nativeSameAs(long nativeBitmap0, long nativeBitmap1); 18144387190d8ec9fe4e953fcfeb093a644b82cf85edJohn Reck private static native void nativePrepareToDraw(long nativeBitmap); 18154508218850faedea95371188da587b6734f5f3dasergeyv private static native int nativeGetAllocationByteCount(long nativeBitmap); 181681f97ee47ccf0d011cdc4f38b6ea5c45b70dedc0sergeyv private static native Bitmap nativeCopyPreserveInternalConfig(long nativeBitmap); 18170a0f23163a7a62900d46c7f81d109320d73d6c6bsergeyv private static native Bitmap nativeCreateHardwareBitmap(GraphicBuffer buffer); 18186e3658a63843096058ed444d073fbcd191fd7e1bsergeyv private static native GraphicBuffer nativeCreateGraphicBufferHandle(long nativeBitmap); 18199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 1820