Bitmap.java revision 4c5efe9290543b723b76a8bd48518da1ae1dcb26
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 284cd7dbc90f93893f521dce32d8cd25c02a185a24Chris Craikimport dalvik.system.VMRuntime; 29ec4a50428d5f26a22df3edaf7e5b08f41d5cb54bAmith Yamasani 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 47e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy /** 48e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy * Backing buffer for the Bitmap. 49e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy */ 50f29d5a5b211786248d0557157c304c5fff428bd4Derek Sollenberger private byte[] mBuffer; 51e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy 52f29ed28c7b878ef28058bc730715d0d32445bc57John Reck // Convenience for JNI access 53f29ed28c7b878ef28058bc730715d0d32445bc57John Reck private final long mNativePtr; 54e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy private final BitmapFinalizer mFinalizer; 55e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy 569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private final boolean mIsMutable; 571abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik 581abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik /** 5957ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III * Represents whether the Bitmap's content is requested to be pre-multiplied. 601abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * Note that isPremultiplied() does not directly return this value, because 6157ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III * isPremultiplied() may never return true for a 565 Bitmap or a bitmap 6257ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III * without alpha. 631abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * 641abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * setPremultiplied() does directly set the value so that setConfig() and 651abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * setPremultiplied() aren't order dependent, despite being setters. 6657ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III * 6757ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III * The native bitmap's premultiplication state is kept up to date by 6857ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III * pushing down this preference for every config change. 691abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik */ 7057ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III private boolean mRequestPremultiplied; 718790be6de3644e332ec6a17c855da89ffc13a9bfLeon Scroggins III 7247cd8e921db73e894f94ec4729ade90da50996f5Chris Craik private byte[] mNinePatchChunk; // may be null 7347cd8e921db73e894f94ec4729ade90da50996f5Chris Craik private NinePatch.InsetStruct mNinePatchInsets; // may be null 741abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik private int mWidth; 751abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik private int mHeight; 769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mRecycled; 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7811ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn // Package-scoped for fast access. 79dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn int mDensity = getDefaultDensity(); 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8111ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn private static volatile Matrix sScaleMatrix; 829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8396e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn private static volatile int sDefaultDensity = -1; 8402890fd0f98b3b8d98baf0bda1ea906afd723d8bRomain Guy 8596e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn /** 8696e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * For backwards compatibility, allows the app layer to change the default 8796e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * density when running old apps. 8896e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * @hide 8996e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn */ 9096e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn public static void setDefaultDensity(int density) { 9196e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn sDefaultDensity = density; 9296e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn } 933849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy 94f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck @SuppressWarnings("deprecation") 953849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy static int getDefaultDensity() { 9696e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn if (sDefaultDensity >= 0) { 9796e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn return sDefaultDensity; 9896e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn } 9996e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn sDefaultDensity = DisplayMetrics.DENSITY_DEVICE; 10096e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn return sDefaultDensity; 10196e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn } 102dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1049f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik * Private constructor that must received an already allocated native bitmap 1059f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik * int (pointer). 106ec4a50428d5f26a22df3edaf7e5b08f41d5cb54bAmith Yamasani */ 107f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck // called from JNI 10836bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat Bitmap(long nativeBitmap, byte[] buffer, int width, int height, int density, 10957ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III boolean isMutable, boolean requestPremultiplied, 11047cd8e921db73e894f94ec4729ade90da50996f5Chris Craik byte[] ninePatchChunk, NinePatch.InsetStruct ninePatchInsets) { 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (nativeBitmap == 0) { 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException("internal error: native bitmap is 0"); 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1148cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 1151abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik mWidth = width; 1161abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik mHeight = height; 1171abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik mIsMutable = isMutable; 11857ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III mRequestPremultiplied = requestPremultiplied; 119e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy mBuffer = buffer; 1204cd7dbc90f93893f521dce32d8cd25c02a185a24Chris Craik 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNinePatchChunk = ninePatchChunk; 12247cd8e921db73e894f94ec4729ade90da50996f5Chris Craik mNinePatchInsets = ninePatchInsets; 123de0dfb7b65a02d4dd74c271b558adee0973fc267Dianne Hackborn if (density >= 0) { 124de0dfb7b65a02d4dd74c271b558adee0973fc267Dianne Hackborn mDensity = density; 125de0dfb7b65a02d4dd74c271b558adee0973fc267Dianne Hackborn } 1264cd7dbc90f93893f521dce32d8cd25c02a185a24Chris Craik 127f29ed28c7b878ef28058bc730715d0d32445bc57John Reck mNativePtr = nativeBitmap; 128f29ed28c7b878ef28058bc730715d0d32445bc57John Reck mFinalizer = new BitmapFinalizer(nativeBitmap); 129f29ed28c7b878ef28058bc730715d0d32445bc57John Reck int nativeAllocationByteCount = (buffer == null ? getByteCount() : 0); 130f29ed28c7b878ef28058bc730715d0d32445bc57John Reck mFinalizer.setNativeAllocationByteCount(nativeAllocationByteCount); 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1344c5efe9290543b723b76a8bd48518da1ae1dcb26Derek Sollenberger * Return the pointer to the native object. 1354c5efe9290543b723b76a8bd48518da1ae1dcb26Derek Sollenberger */ 1364c5efe9290543b723b76a8bd48518da1ae1dcb26Derek Sollenberger long getNativeInstance() { 1374c5efe9290543b723b76a8bd48518da1ae1dcb26Derek Sollenberger return mNativePtr; 1384c5efe9290543b723b76a8bd48518da1ae1dcb26Derek Sollenberger } 1394c5efe9290543b723b76a8bd48518da1ae1dcb26Derek Sollenberger 1404c5efe9290543b723b76a8bd48518da1ae1dcb26Derek Sollenberger /** 1411abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * Native bitmap has been reconfigured, so set premult and cached 1421abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * width/height values 1439f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik */ 144f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck // called from JNI 14557ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III void reinit(int width, int height, boolean requestPremultiplied) { 1461abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik mWidth = width; 1471abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik mHeight = height; 14857ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III mRequestPremultiplied = requestPremultiplied; 1499f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik } 1509f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik 1519f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik /** 15211ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * <p>Returns the density for this bitmap.</p> 1539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15496e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * <p>The default density is the same density as the current display, 15596e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * unless the current application does not support different screen 15696e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * densities in which case it is 15796e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * {@link android.util.DisplayMetrics#DENSITY_DEFAULT}. Note that 15896e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * compatibility mode is determined by the application that was initially 15996e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * loaded into a process -- applications that share the same process should 16096e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * all have the same compatibility, or ensure they explicitly set the 16196e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * density of their bitmaps appropriately.</p> 1629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16396e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * @return A scaling factor of the default density or {@link #DENSITY_NONE} 1649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * if the scaling factor is unknown. 1659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16611ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @see #setDensity(int) 167a53b828635fce8b6b2d3e3377d74d72070056623Dianne Hackborn * @see android.util.DisplayMetrics#DENSITY_DEFAULT 16811ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @see android.util.DisplayMetrics#densityDpi 16911ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @see #DENSITY_NONE 1709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 17111ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn public int getDensity() { 17201a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck if (mRecycled) { 17301a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck Log.w(TAG, "Called getDensity() on a recycle()'d bitmap! This is undefined behavior!"); 17401a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck } 17511ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn return mDensity; 1769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 17911ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * <p>Specifies the density for this bitmap. When the bitmap is 18011ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * drawn to a Canvas that also has a density, it will be scaled 18111ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * appropriately.</p> 1829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 18311ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @param density The density scaling factor to use with this bitmap or 18411ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * {@link #DENSITY_NONE} if the density is unknown. 1859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 18611ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @see #getDensity() 187a53b828635fce8b6b2d3e3377d74d72070056623Dianne Hackborn * @see android.util.DisplayMetrics#DENSITY_DEFAULT 18811ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @see android.util.DisplayMetrics#densityDpi 18911ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @see #DENSITY_NONE 1909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19111ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn public void setDensity(int density) { 19211ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn mDensity = density; 1939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 194c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik 195c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik /** 196c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * <p>Modifies the bitmap to have a specified width, height, and {@link 197c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * Config}, without affecting the underlying allocation backing the bitmap. 198c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * Bitmap pixel data is not re-initialized for the new configuration.</p> 199c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * 200c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * <p>This method can be used to avoid allocating a new bitmap, instead 201c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * reusing an existing bitmap's allocation for a new configuration of equal 202c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * or lesser size. If the Bitmap's allocation isn't large enough to support 203c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * the new configuration, an IllegalArgumentException will be thrown and the 204c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * bitmap will not be modified.</p> 205c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * 206c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * <p>The result of {@link #getByteCount()} will reflect the new configuration, 207c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * while {@link #getAllocationByteCount()} will reflect that of the initial 208c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * configuration.</p> 209c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * 21017a8bfc38a565ae96f43d36b223779be840bb50cLeon Scroggins III * <p>Note: This may change this result of hasAlpha(). When converting to 565, 21117a8bfc38a565ae96f43d36b223779be840bb50cLeon Scroggins III * the new bitmap will always be considered opaque. When converting from 565, 21217a8bfc38a565ae96f43d36b223779be840bb50cLeon Scroggins III * the new bitmap will be considered non-opaque, and will respect the value 21317a8bfc38a565ae96f43d36b223779be840bb50cLeon Scroggins III * set by setPremultiplied().</p> 21417a8bfc38a565ae96f43d36b223779be840bb50cLeon Scroggins III * 2156d86e57bdadd56be160eb3e543cc53622cae46f2John Reck * <p>WARNING: This method should NOT be called on a bitmap currently in use 2166d86e57bdadd56be160eb3e543cc53622cae46f2John Reck * by the view system, Canvas, or the AndroidBitmap NDK API. It does not 2176d86e57bdadd56be160eb3e543cc53622cae46f2John Reck * make guarantees about how the underlying pixel buffer is remapped to the 2186d86e57bdadd56be160eb3e543cc53622cae46f2John Reck * new config, just that the allocation is reused. Additionally, the view 2196d86e57bdadd56be160eb3e543cc53622cae46f2John Reck * system does not account for bitmap properties being modifying during use, 2206d86e57bdadd56be160eb3e543cc53622cae46f2John Reck * e.g. while attached to drawables.</p> 2216d86e57bdadd56be160eb3e543cc53622cae46f2John Reck * 2226d86e57bdadd56be160eb3e543cc53622cae46f2John Reck * <p>In order to safely ensure that a Bitmap is no longer in use by the 2236d86e57bdadd56be160eb3e543cc53622cae46f2John Reck * View system it is necessary to wait for a draw pass to occur after 2246d86e57bdadd56be160eb3e543cc53622cae46f2John Reck * invalidate()'ing any view that had previously drawn the Bitmap in the last 2256d86e57bdadd56be160eb3e543cc53622cae46f2John Reck * draw pass due to hardware acceleration's caching of draw commands. As 2266d86e57bdadd56be160eb3e543cc53622cae46f2John Reck * an example, here is how this can be done for an ImageView: 2276d86e57bdadd56be160eb3e543cc53622cae46f2John Reck * <pre class="prettyprint"> 2286d86e57bdadd56be160eb3e543cc53622cae46f2John Reck * ImageView myImageView = ...; 2296d86e57bdadd56be160eb3e543cc53622cae46f2John Reck * final Bitmap myBitmap = ...; 2306d86e57bdadd56be160eb3e543cc53622cae46f2John Reck * myImageView.setImageDrawable(null); 2316d86e57bdadd56be160eb3e543cc53622cae46f2John Reck * myImageView.post(new Runnable() { 2326d86e57bdadd56be160eb3e543cc53622cae46f2John Reck * public void run() { 2336d86e57bdadd56be160eb3e543cc53622cae46f2John Reck * // myBitmap is now no longer in use by the ImageView 2346d86e57bdadd56be160eb3e543cc53622cae46f2John Reck * // and can be safely reconfigured. 2356d86e57bdadd56be160eb3e543cc53622cae46f2John Reck * myBitmap.reconfigure(...); 2366d86e57bdadd56be160eb3e543cc53622cae46f2John Reck * } 2376d86e57bdadd56be160eb3e543cc53622cae46f2John Reck * }); 2386d86e57bdadd56be160eb3e543cc53622cae46f2John Reck * </pre></p> 239c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * 240c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * @see #setWidth(int) 241c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * @see #setHeight(int) 242c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * @see #setConfig(Config) 243c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik */ 244c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik public void reconfigure(int width, int height, Config config) { 245c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik checkRecycled("Can't call reconfigure() on a recycled bitmap"); 246c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik if (width <= 0 || height <= 0) { 247c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik throw new IllegalArgumentException("width and height must be > 0"); 248c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik } 249c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik if (!isMutable()) { 2509c2cde0583d02ba7551877dbe7a5ecaee6defb56Chris Craik throw new IllegalStateException("only mutable bitmaps may be reconfigured"); 251c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik } 252c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik if (mBuffer == null) { 2531abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik throw new IllegalStateException("native-backed bitmaps may not be reconfigured"); 254c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik } 255c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik 256f29ed28c7b878ef28058bc730715d0d32445bc57John Reck nativeReconfigure(mFinalizer.mNativeBitmap, width, height, config.nativeInt, 257f29ed28c7b878ef28058bc730715d0d32445bc57John Reck mBuffer.length, mRequestPremultiplied); 258c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik mWidth = width; 259c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik mHeight = height; 260c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik } 261c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik 262c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik /** 263c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * <p>Convenience method for calling {@link #reconfigure(int, int, Config)} 264c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * with the current height and config.</p> 265c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * 266c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * <p>WARNING: this method should not be used on bitmaps currently used by 267c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * the view system, see {@link #reconfigure(int, int, Config)} for more 268c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * details.</p> 269c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * 270c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * @see #reconfigure(int, int, Config) 271c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * @see #setHeight(int) 272c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * @see #setConfig(Config) 273c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik */ 274c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik public void setWidth(int width) { 275c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik reconfigure(width, getHeight(), getConfig()); 276c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik } 277c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik 278c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik /** 279c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * <p>Convenience method for calling {@link #reconfigure(int, int, Config)} 280c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * with the current width and config.</p> 281c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * 282c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * <p>WARNING: this method should not be used on bitmaps currently used by 283c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * the view system, see {@link #reconfigure(int, int, Config)} for more 284c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * details.</p> 285c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * 286c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * @see #reconfigure(int, int, Config) 287c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * @see #setWidth(int) 288c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * @see #setConfig(Config) 289c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik */ 290c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik public void setHeight(int height) { 291c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik reconfigure(getWidth(), height, getConfig()); 292c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik } 293c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik 294c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik /** 295c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * <p>Convenience method for calling {@link #reconfigure(int, int, Config)} 296c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * with the current height and width.</p> 297c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * 298c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * <p>WARNING: this method should not be used on bitmaps currently used by 299c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * the view system, see {@link #reconfigure(int, int, Config)} for more 300c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * details.</p> 301c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * 302c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * @see #reconfigure(int, int, Config) 303c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * @see #setWidth(int) 304c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * @see #setHeight(int) 305c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik */ 306c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik public void setConfig(Config config) { 307c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik reconfigure(getWidth(), getHeight(), config); 308c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik } 309c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik 3109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the nine patch chunk. 3129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 3139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param chunk The definition of the nine patch 3149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 3159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @hide 3169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setNinePatchChunk(byte[] chunk) { 3189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNinePatchChunk = chunk; 3199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3208cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 3219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 322a383b3f646cbc1fd870f2694d4fac24340834916Patrick Dubroy * Free the native object associated with this bitmap, and clear the 323a383b3f646cbc1fd870f2694d4fac24340834916Patrick Dubroy * reference to the pixel data. This will not free the pixel data synchronously; 324a383b3f646cbc1fd870f2694d4fac24340834916Patrick Dubroy * it simply allows it to be garbage collected if there are no other references. 325a383b3f646cbc1fd870f2694d4fac24340834916Patrick Dubroy * The bitmap is marked as "dead", meaning it will throw an exception if 326a383b3f646cbc1fd870f2694d4fac24340834916Patrick Dubroy * getPixels() or setPixels() is called, and will draw nothing. This operation 327a383b3f646cbc1fd870f2694d4fac24340834916Patrick Dubroy * cannot be reversed, so it should only be called if you are sure there are no 3289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * further uses for the bitmap. This is an advanced call, and normally need 3299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * not be called, since the normal GC process will free up this memory when 3309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * there are no more references to this bitmap. 3319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void recycle() { 3334018eb376383a9bbe2aa75a95cc6917ca72aa0b7John Reck if (!mRecycled && mFinalizer.mNativeBitmap != 0) { 334f29ed28c7b878ef28058bc730715d0d32445bc57John Reck if (nativeRecycle(mFinalizer.mNativeBitmap)) { 335547e66531d521eb1eadac87edb0f79f8c2f1bbe0Chet Haase // return value indicates whether native pixel object was actually recycled. 336547e66531d521eb1eadac87edb0f79f8c2f1bbe0Chet Haase // false indicates that it is still in use at the native level and these 337547e66531d521eb1eadac87edb0f79f8c2f1bbe0Chet Haase // objects should not be collected now. They will be collected later when the 338547e66531d521eb1eadac87edb0f79f8c2f1bbe0Chet Haase // Bitmap itself is collected. 339547e66531d521eb1eadac87edb0f79f8c2f1bbe0Chet Haase mBuffer = null; 340547e66531d521eb1eadac87edb0f79f8c2f1bbe0Chet Haase mNinePatchChunk = null; 341547e66531d521eb1eadac87edb0f79f8c2f1bbe0Chet Haase } 3429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycled = true; 3439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns true if this bitmap has been recycled. If so, then it is an error 3489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to try to access its pixels, and the bitmap will not draw. 3499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 3509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the bitmap has been recycled 3519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final boolean isRecycled() { 3539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mRecycled; 3549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3558cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 3569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3570bbae0836426ba2704e38e7f90a9d0ca502ab71dRomain Guy * Returns the generation ID of this bitmap. The generation ID changes 3580bbae0836426ba2704e38e7f90a9d0ca502ab71dRomain Guy * whenever the bitmap is modified. This can be used as an efficient way to 3590bbae0836426ba2704e38e7f90a9d0ca502ab71dRomain Guy * check if a bitmap has changed. 360f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck * 3610bbae0836426ba2704e38e7f90a9d0ca502ab71dRomain Guy * @return The current generation ID for this bitmap. 3620bbae0836426ba2704e38e7f90a9d0ca502ab71dRomain Guy */ 3630bbae0836426ba2704e38e7f90a9d0ca502ab71dRomain Guy public int getGenerationId() { 36401a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck if (mRecycled) { 36501a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck Log.w(TAG, "Called getGenerationId() on a recycle()'d bitmap! This is undefined behavior!"); 36601a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck } 367f29ed28c7b878ef28058bc730715d0d32445bc57John Reck return nativeGenerationId(mFinalizer.mNativeBitmap); 3680bbae0836426ba2704e38e7f90a9d0ca502ab71dRomain Guy } 369f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck 3700bbae0836426ba2704e38e7f90a9d0ca502ab71dRomain Guy /** 3719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This is called by methods that want to throw an exception if the bitmap 3729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * has already been recycled. 3739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void checkRecycled(String errorMessage) { 3759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mRecycled) { 3769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalStateException(errorMessage); 3779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3798cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 3809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Common code for checking that x and y are >= 0 3829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 3839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x x coordinate to ensure is >= 0 3849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y y coordinate to ensure is >= 0 3859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static void checkXYSign(int x, int y) { 3879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (x < 0) { 3889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("x must be >= 0"); 3899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (y < 0) { 3919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("y must be >= 0"); 3929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Common code for checking that width and height are > 0 3979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 3989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param width width to ensure is > 0 3999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param height height to ensure is > 0 4009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static void checkWidthHeight(int width, int height) { 4029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (width <= 0) { 4039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("width must be > 0"); 4049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height <= 0) { 4069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("height must be > 0"); 4079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 410676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy /** 411676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * Possible bitmap configurations. A bitmap configuration describes 412676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * how pixels are stored. This affects the quality (color depth) as 413676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * well as the ability to display transparent/translucent colors. 414676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy */ 4159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public enum Config { 4169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // these native values must match up with the enum in SkBitmap.h 417676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy 418676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy /** 419676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * Each pixel is stored as a single translucency (alpha) channel. 420676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * This is very useful to efficiently store masks for instance. 421676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * No color information is stored. 422676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * With this configuration, each pixel requires 1 byte of memory. 423676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy */ 424b644a3b84521e2155a5af985a4d4ed305474e567Derek Sollenberger ALPHA_8 (1), 425676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy 426676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy /** 427676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * Each pixel is stored on 2 bytes and only the RGB channels are 428676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * encoded: red is stored with 5 bits of precision (32 possible 429676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * values), green is stored with 6 bits of precision (64 possible 430676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * values) and blue is stored with 5 bits of precision. 431f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck * 432676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * This configuration can produce slight visual artifacts depending 433676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * on the configuration of the source. For instance, without 434676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * dithering, the result might show a greenish tint. To get better 435676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * results dithering should be applied. 436f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck * 437676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * This configuration may be useful when using opaque bitmaps 438676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * that do not require high color fidelity. 439676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy */ 440b644a3b84521e2155a5af985a4d4ed305474e567Derek Sollenberger RGB_565 (3), 441676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy 442676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy /** 443676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * Each pixel is stored on 2 bytes. The three RGB color channels 444676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * and the alpha channel (translucency) are stored with a 4 bits 445676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * precision (16 possible values.) 446f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck * 447676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * This configuration is mostly useful if the application needs 448676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * to store translucency information but also needs to save 449676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * memory. 450f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck * 451676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * It is recommended to use {@link #ARGB_8888} instead of this 452676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * configuration. 45325ba1c86945a441428194d9ebcabbf31be75a45aRomain Guy * 454e8222dddaf2e3da14380101e818d4254899e0c0dChet Haase * Note: as of {@link android.os.Build.VERSION_CODES#KITKAT}, 45525ba1c86945a441428194d9ebcabbf31be75a45aRomain Guy * any bitmap created with this configuration will be created 45625ba1c86945a441428194d9ebcabbf31be75a45aRomain Guy * using {@link #ARGB_8888} instead. 457f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck * 458676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * @deprecated Because of the poor quality of this configuration, 459676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * it is advised to use {@link #ARGB_8888} instead. 460676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy */ 461676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy @Deprecated 462b644a3b84521e2155a5af985a4d4ed305474e567Derek Sollenberger ARGB_4444 (4), 463676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy 464676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy /** 465676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * Each pixel is stored on 4 bytes. Each channel (RGB and alpha 466676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * for translucency) is stored with 8 bits of precision (256 467676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * possible values.) 468f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck * 469676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * This configuration is very flexible and offers the best 470676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy * quality. It should be used whenever possible. 471676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy */ 472b644a3b84521e2155a5af985a4d4ed305474e567Derek Sollenberger ARGB_8888 (5); 4739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 474676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy final int nativeInt; 475676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy 476676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy private static Config sConfigs[] = { 477b644a3b84521e2155a5af985a4d4ed305474e567Derek Sollenberger null, ALPHA_8, null, RGB_565, ARGB_4444, ARGB_8888 478676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy }; 479f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck 4809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Config(int ni) { 4819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this.nativeInt = ni; 4829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4838cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 484676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy static Config nativeToConfig(int ni) { 4859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return sConfigs[ni]; 4869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4888cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 4899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4903849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * <p>Copy the bitmap's pixels into the specified buffer (allocated by the 4919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * caller). An exception is thrown if the buffer is not large enough to 4929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * hold all of the pixels (taking into account the number of bytes per 4939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * pixel) or if the Buffer subclass is not one of the support types 4943849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * (ByteBuffer, ShortBuffer, IntBuffer).</p> 4953849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * <p>The content of the bitmap is copied into the buffer as-is. This means 4963849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * that if this bitmap stores its pixels pre-multiplied 4973849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * (see {@link #isPremultiplied()}, the values in the buffer will also be 4983849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * pre-multiplied.</p> 4991f58497e7dbab1b16e97c73b65559b852d0c2803Romain Guy * <p>After this method returns, the current position of the buffer is 5001f58497e7dbab1b16e97c73b65559b852d0c2803Romain Guy * updated: the position is incremented by the number of elements written 5011f58497e7dbab1b16e97c73b65559b852d0c2803Romain Guy * in the buffer.</p> 5029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void copyPixelsToBuffer(Buffer dst) { 5049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int elements = dst.remaining(); 5059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int shift; 5069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (dst instanceof ByteBuffer) { 5079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project shift = 0; 5089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (dst instanceof ShortBuffer) { 5099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project shift = 1; 5109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (dst instanceof IntBuffer) { 5119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project shift = 2; 5129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 5139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException("unsupported Buffer subclass"); 5149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5158cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 5169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long bufferSize = (long)elements << shift; 517f7f9d9c39df22ad6929f001f07588469f77e8bf5Jesse Wilson long pixelSize = getByteCount(); 5188cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 5199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (bufferSize < pixelSize) { 5209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException("Buffer not large enough for pixels"); 5219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5228cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 523f29ed28c7b878ef28058bc730715d0d32445bc57John Reck nativeCopyPixelsToBuffer(mFinalizer.mNativeBitmap, dst); 5248cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 5259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // now update the buffer's position 5269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = dst.position(); 5279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position += pixelSize >> shift; 5289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dst.position(position); 5299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5323849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * <p>Copy the pixels from the buffer, beginning at the current position, 5339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * overwriting the bitmap's pixels. The data in the buffer is not changed 5349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * in any way (unlike setPixels(), which converts from unpremultipled 32bit 5353849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * to whatever the bitmap's native format is.</p> 5361f58497e7dbab1b16e97c73b65559b852d0c2803Romain Guy * <p>After this method returns, the current position of the buffer is 5371f58497e7dbab1b16e97c73b65559b852d0c2803Romain Guy * updated: the position is incremented by the number of elements read from 5381f58497e7dbab1b16e97c73b65559b852d0c2803Romain Guy * the buffer. If you need to read the bitmap from the buffer again you must 5391f58497e7dbab1b16e97c73b65559b852d0c2803Romain Guy * first rewind the buffer.</p> 5409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void copyPixelsFromBuffer(Buffer src) { 5429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRecycled("copyPixelsFromBuffer called on recycled bitmap"); 5438cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 5449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int elements = src.remaining(); 5459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int shift; 5469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (src instanceof ByteBuffer) { 5479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project shift = 0; 5489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (src instanceof ShortBuffer) { 5499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project shift = 1; 5509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (src instanceof IntBuffer) { 5519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project shift = 2; 5529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 5539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException("unsupported Buffer subclass"); 5549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5558cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 5563849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy long bufferBytes = (long) elements << shift; 557f7f9d9c39df22ad6929f001f07588469f77e8bf5Jesse Wilson long bitmapBytes = getByteCount(); 5588cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 5599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (bufferBytes < bitmapBytes) { 5609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException("Buffer not large enough for pixels"); 5619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5628cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 563f29ed28c7b878ef28058bc730715d0d32445bc57John Reck nativeCopyPixelsFromBuffer(mFinalizer.mNativeBitmap, src); 56455adc145d460be4b21de0d77be1f6076c3591e3cMarco Nelissen 56555adc145d460be4b21de0d77be1f6076c3591e3cMarco Nelissen // now update the buffer's position 56655adc145d460be4b21de0d77be1f6076c3591e3cMarco Nelissen int position = src.position(); 56755adc145d460be4b21de0d77be1f6076c3591e3cMarco Nelissen position += bitmapBytes >> shift; 56855adc145d460be4b21de0d77be1f6076c3591e3cMarco Nelissen src.position(position); 5699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5708cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 5719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Tries to make a new bitmap based on the dimensions of this bitmap, 5739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * setting the new bitmap's config to the one specified, and then copying 5749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this bitmap's pixels into the new bitmap. If the conversion is not 57596e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * supported, or the allocator fails, then this returns NULL. The returned 57696e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * bitmap initially has the same density as the original. 5779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 5789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param config The desired config for the resulting bitmap 5799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param isMutable True if the resulting bitmap should be mutable (i.e. 5809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * its pixels can be modified) 5819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the new bitmap, or null if the copy could not be made. 5829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Bitmap copy(Config config, boolean isMutable) { 5849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRecycled("Can't copy a recycled bitmap"); 585f29ed28c7b878ef28058bc730715d0d32445bc57John Reck Bitmap b = nativeCopy(mFinalizer.mNativeBitmap, config.nativeInt, isMutable); 58696e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn if (b != null) { 58757ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III b.setPremultiplied(mRequestPremultiplied); 58896e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn b.mDensity = mDensity; 58996e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn } 59096e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn return b; 5919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59302d9102b3bdebac6989c2b7d12c080fb7c1f8e2bBrad Fitzpatrick /** 594721ae5fec5f1fd4f93aa2a361a0ac298e15ce353Riley Andrews * Creates a new immutable bitmap backed by ashmem which can efficiently 595721ae5fec5f1fd4f93aa2a361a0ac298e15ce353Riley Andrews * be passed between processes. 596721ae5fec5f1fd4f93aa2a361a0ac298e15ce353Riley Andrews * 597721ae5fec5f1fd4f93aa2a361a0ac298e15ce353Riley Andrews * @hide 598721ae5fec5f1fd4f93aa2a361a0ac298e15ce353Riley Andrews */ 599721ae5fec5f1fd4f93aa2a361a0ac298e15ce353Riley Andrews public Bitmap createAshmemBitmap() { 600721ae5fec5f1fd4f93aa2a361a0ac298e15ce353Riley Andrews checkRecycled("Can't copy a recycled bitmap"); 601721ae5fec5f1fd4f93aa2a361a0ac298e15ce353Riley Andrews Bitmap b = nativeCopyAshmem(mFinalizer.mNativeBitmap); 602721ae5fec5f1fd4f93aa2a361a0ac298e15ce353Riley Andrews if (b != null) { 603721ae5fec5f1fd4f93aa2a361a0ac298e15ce353Riley Andrews b.setPremultiplied(mRequestPremultiplied); 604721ae5fec5f1fd4f93aa2a361a0ac298e15ce353Riley Andrews b.mDensity = mDensity; 605721ae5fec5f1fd4f93aa2a361a0ac298e15ce353Riley Andrews } 606721ae5fec5f1fd4f93aa2a361a0ac298e15ce353Riley Andrews return b; 607721ae5fec5f1fd4f93aa2a361a0ac298e15ce353Riley Andrews } 608721ae5fec5f1fd4f93aa2a361a0ac298e15ce353Riley Andrews 609721ae5fec5f1fd4f93aa2a361a0ac298e15ce353Riley Andrews /** 610f12f6f058f169ead83a546a1c3a51e49452a30b3Romain Guy * Creates a new bitmap, scaled from an existing bitmap, when possible. If the 611f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck * specified width and height are the same as the current width and height of 6129f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik * the source bitmap, the source bitmap is returned and no new bitmap is 613f12f6f058f169ead83a546a1c3a51e49452a30b3Romain Guy * created. 61402d9102b3bdebac6989c2b7d12c080fb7c1f8e2bBrad Fitzpatrick * 61502d9102b3bdebac6989c2b7d12c080fb7c1f8e2bBrad Fitzpatrick * @param src The source bitmap. 61602d9102b3bdebac6989c2b7d12c080fb7c1f8e2bBrad Fitzpatrick * @param dstWidth The new bitmap's desired width. 61702d9102b3bdebac6989c2b7d12c080fb7c1f8e2bBrad Fitzpatrick * @param dstHeight The new bitmap's desired height. 61802d9102b3bdebac6989c2b7d12c080fb7c1f8e2bBrad Fitzpatrick * @param filter true if the source should be filtered. 619f12f6f058f169ead83a546a1c3a51e49452a30b3Romain Guy * @return The new scaled bitmap or the source bitmap if no scaling is required. 620790552b240c05d58407f7c14acba656b2e85c523Romain Guy * @throws IllegalArgumentException if width is <= 0, or height is <= 0 62102d9102b3bdebac6989c2b7d12c080fb7c1f8e2bBrad Fitzpatrick */ 622f12f6f058f169ead83a546a1c3a51e49452a30b3Romain Guy public static Bitmap createScaledBitmap(Bitmap src, int dstWidth, int dstHeight, 623f12f6f058f169ead83a546a1c3a51e49452a30b3Romain Guy boolean filter) { 6249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Matrix m; 6259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project synchronized (Bitmap.class) { 6269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // small pool of just 1 matrix 6279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project m = sScaleMatrix; 6289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sScaleMatrix = null; 6299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (m == null) { 6329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project m = new Matrix(); 6339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6348cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 6359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int width = src.getWidth(); 6369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = src.getHeight(); 6379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float sx = dstWidth / (float)width; 6389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float sy = dstHeight / (float)height; 6399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project m.setScale(sx, sy); 6409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Bitmap b = Bitmap.createBitmap(src, 0, 0, width, height, m, filter); 6419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project synchronized (Bitmap.class) { 6439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // do we need to check for null? why not just assign everytime? 6449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sScaleMatrix == null) { 6459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sScaleMatrix = m; 6469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6498cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen return b; 6509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6518cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 6529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns an immutable bitmap from the source bitmap. The new bitmap may 65496e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * be the same object as source, or a copy may have been made. It is 65596e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * initialized with the same density as the original bitmap. 6569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static Bitmap createBitmap(Bitmap src) { 6589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return createBitmap(src, 0, 0, src.getWidth(), src.getHeight()); 6599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns an immutable bitmap from the specified subset of the source 6639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * bitmap. The new bitmap may be the same object as source, or a copy may 664f12f6f058f169ead83a546a1c3a51e49452a30b3Romain Guy * have been made. It is initialized with the same density as the original 665f12f6f058f169ead83a546a1c3a51e49452a30b3Romain Guy * bitmap. 6669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param source The bitmap we are subsetting 6689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x The x coordinate of the first pixel in source 6699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y The y coordinate of the first pixel in source 6709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param width The number of pixels in each row 6719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param height The number of rows 672f12f6f058f169ead83a546a1c3a51e49452a30b3Romain Guy * @return A copy of a subset of the source bitmap or the source bitmap itself. 673790552b240c05d58407f7c14acba656b2e85c523Romain Guy * @throws IllegalArgumentException if the x, y, width, height values are 674790552b240c05d58407f7c14acba656b2e85c523Romain Guy * outside of the dimensions of the source bitmap, or width is <= 0, 675790552b240c05d58407f7c14acba656b2e85c523Romain Guy * or height is <= 0 6769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static Bitmap createBitmap(Bitmap source, int x, int y, int width, int height) { 6789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return createBitmap(source, x, y, width, height, null, false); 6799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6808cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 6819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns an immutable bitmap from subset of the source bitmap, 683f12f6f058f169ead83a546a1c3a51e49452a30b3Romain Guy * transformed by the optional matrix. The new bitmap may be the 684f12f6f058f169ead83a546a1c3a51e49452a30b3Romain Guy * same object as source, or a copy may have been made. It is 68596e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * initialized with the same density as the original bitmap. 686f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck * 687f12f6f058f169ead83a546a1c3a51e49452a30b3Romain Guy * If the source bitmap is immutable and the requested subset is the 688f12f6f058f169ead83a546a1c3a51e49452a30b3Romain Guy * same as the source bitmap itself, then the source bitmap is 689f12f6f058f169ead83a546a1c3a51e49452a30b3Romain Guy * returned and no new bitmap is created. 6909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param source The bitmap we are subsetting 6929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x The x coordinate of the first pixel in source 6939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y The y coordinate of the first pixel in source 6949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param width The number of pixels in each row 6959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param height The number of rows 69660b88edea7132ddce90f2dced07c6706f1502270Ken Shirriff * @param m Optional matrix to be applied to the pixels 6979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param filter true if the source should be filtered. 6989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Only applies if the matrix contains more than just 6999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * translation. 7009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A bitmap that represents the specified subset of source 7019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IllegalArgumentException if the x, y, width, height values are 702790552b240c05d58407f7c14acba656b2e85c523Romain Guy * outside of the dimensions of the source bitmap, or width is <= 0, 703790552b240c05d58407f7c14acba656b2e85c523Romain Guy * or height is <= 0 7049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static Bitmap createBitmap(Bitmap source, int x, int y, int width, int height, 7069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Matrix m, boolean filter) { 7079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkXYSign(x, y); 7099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkWidthHeight(width, height); 7109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (x + width > source.getWidth()) { 7119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("x + width must be <= bitmap.width()"); 7129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (y + height > source.getHeight()) { 7149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("y + height must be <= bitmap.height()"); 7159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // check if we can just return our argument unchanged 7189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!source.isMutable() && x == 0 && y == 0 && width == source.getWidth() && 7199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height == source.getHeight() && (m == null || m.isIdentity())) { 7209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return source; 7219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7228cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 7239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int neww = width; 7249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int newh = height; 7259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Canvas canvas = new Canvas(); 7269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Bitmap bitmap; 7279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Paint paint; 7289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect srcR = new Rect(x, y, x + width, y + height); 7309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RectF dstR = new RectF(0, 0, width, height); 7319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 732feeea8f07c854e6b0ae2fec3aa2d239c17f32b5bRomain Guy Config newConfig = Config.ARGB_8888; 733feeea8f07c854e6b0ae2fec3aa2d239c17f32b5bRomain Guy final Config config = source.getConfig(); 734feeea8f07c854e6b0ae2fec3aa2d239c17f32b5bRomain Guy // GIF files generate null configs, assume ARGB_8888 735feeea8f07c854e6b0ae2fec3aa2d239c17f32b5bRomain Guy if (config != null) { 736feeea8f07c854e6b0ae2fec3aa2d239c17f32b5bRomain Guy switch (config) { 737feeea8f07c854e6b0ae2fec3aa2d239c17f32b5bRomain Guy case RGB_565: 738feeea8f07c854e6b0ae2fec3aa2d239c17f32b5bRomain Guy newConfig = Config.RGB_565; 739feeea8f07c854e6b0ae2fec3aa2d239c17f32b5bRomain Guy break; 740feeea8f07c854e6b0ae2fec3aa2d239c17f32b5bRomain Guy case ALPHA_8: 741feeea8f07c854e6b0ae2fec3aa2d239c17f32b5bRomain Guy newConfig = Config.ALPHA_8; 742feeea8f07c854e6b0ae2fec3aa2d239c17f32b5bRomain Guy break; 743676b17391fb6583e5df944c36b1bd4c1be835689Romain Guy //noinspection deprecation 744feeea8f07c854e6b0ae2fec3aa2d239c17f32b5bRomain Guy case ARGB_4444: 745feeea8f07c854e6b0ae2fec3aa2d239c17f32b5bRomain Guy case ARGB_8888: 746feeea8f07c854e6b0ae2fec3aa2d239c17f32b5bRomain Guy default: 747feeea8f07c854e6b0ae2fec3aa2d239c17f32b5bRomain Guy newConfig = Config.ARGB_8888; 748feeea8f07c854e6b0ae2fec3aa2d239c17f32b5bRomain Guy break; 749feeea8f07c854e6b0ae2fec3aa2d239c17f32b5bRomain Guy } 750feeea8f07c854e6b0ae2fec3aa2d239c17f32b5bRomain Guy } 751d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy 7529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (m == null || m.isIdentity()) { 753d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy bitmap = createBitmap(neww, newh, newConfig, source.hasAlpha()); 7549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint = null; // not needed 7559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 756d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy final boolean transformed = !m.rectStaysRect(); 757d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy 7589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RectF deviceR = new RectF(); 7599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project m.mapRect(deviceR, dstR); 760d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy 7619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project neww = Math.round(deviceR.width()); 7629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newh = Math.round(deviceR.height()); 763d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy 764d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy bitmap = createBitmap(neww, newh, transformed ? Config.ARGB_8888 : newConfig, 765d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy transformed || source.hasAlpha()); 766d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy 7679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.translate(-deviceR.left, -deviceR.top); 7689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.concat(m); 769d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy 7709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint = new Paint(); 7719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint.setFilterBitmap(filter); 772d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy if (transformed) { 7739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint.setAntiAlias(true); 7749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7768790be6de3644e332ec6a17c855da89ffc13a9bfLeon Scroggins III 7779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The new bitmap was created from a known bitmap source so assume that 77811ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn // they use the same density 77911ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn bitmap.mDensity = source.mDensity; 78057ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III bitmap.setHasAlpha(source.hasAlpha()); 78157ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III bitmap.setPremultiplied(source.mRequestPremultiplied); 7828790be6de3644e332ec6a17c855da89ffc13a9bfLeon Scroggins III 78396e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn canvas.setBitmap(bitmap); 78496e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn canvas.drawBitmap(source, srcR, dstR, paint); 7856311d0a079702b29984c0d31937345be105e1a5eDianne Hackborn canvas.setBitmap(null); 7869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return bitmap; 7889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7898cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 7909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 79196e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * Returns a mutable bitmap with the specified width and height. Its 79296e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * initial density is as per {@link #getDensity}. 7939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param width The width of the bitmap 7959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param height The height of the bitmap 7969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param config The bitmap config to create. 7979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IllegalArgumentException if the width or height are <= 0 7989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static Bitmap createBitmap(int width, int height, Config config) { 800d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy return createBitmap(width, height, config, true); 801d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy } 802d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy 803d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy /** 804d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy * Returns a mutable bitmap with the specified width and height. Its 805dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * initial density is determined from the given {@link DisplayMetrics}. 806dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * 807dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param display Display metrics for the display this bitmap will be 808dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * drawn on. 809dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param width The width of the bitmap 810dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param height The height of the bitmap 811dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param config The bitmap config to create. 812dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @throws IllegalArgumentException if the width or height are <= 0 813dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn */ 814dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn public static Bitmap createBitmap(DisplayMetrics display, int width, 815dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn int height, Config config) { 816dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn return createBitmap(display, width, height, config, true); 817dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn } 818dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn 819dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn /** 820dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * Returns a mutable bitmap with the specified width and height. Its 821d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy * initial density is as per {@link #getDensity}. 822d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy * 823d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy * @param width The width of the bitmap 824d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy * @param height The height of the bitmap 825d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy * @param config The bitmap config to create. 826d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy * @param hasAlpha If the bitmap is ARGB_8888 this flag can be used to mark the 827d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy * bitmap as opaque. Doing so will clear the bitmap in black 828f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck * instead of transparent. 829f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck * 830d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy * @throws IllegalArgumentException if the width or height are <= 0 831d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy */ 832d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy private static Bitmap createBitmap(int width, int height, Config config, boolean hasAlpha) { 833dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn return createBitmap(null, width, height, config, hasAlpha); 834dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn } 835dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn 836dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn /** 837dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * Returns a mutable bitmap with the specified width and height. Its 838dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * initial density is determined from the given {@link DisplayMetrics}. 839dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * 840dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param display Display metrics for the display this bitmap will be 841dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * drawn on. 842dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param width The width of the bitmap 843dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param height The height of the bitmap 844dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param config The bitmap config to create. 845dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param hasAlpha If the bitmap is ARGB_8888 this flag can be used to mark the 846dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * bitmap as opaque. Doing so will clear the bitmap in black 847f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck * instead of transparent. 848f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck * 849dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @throws IllegalArgumentException if the width or height are <= 0 850dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn */ 851dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn private static Bitmap createBitmap(DisplayMetrics display, int width, int height, 852dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn Config config, boolean hasAlpha) { 853e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy if (width <= 0 || height <= 0) { 854e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy throw new IllegalArgumentException("width and height must be > 0"); 855e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy } 8569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Bitmap bm = nativeCreate(null, 0, width, width, height, config.nativeInt, true); 857dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn if (display != null) { 858dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn bm.mDensity = display.densityDpi; 859dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn } 8608790be6de3644e332ec6a17c855da89ffc13a9bfLeon Scroggins III bm.setHasAlpha(hasAlpha); 861d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy if (config == Config.ARGB_8888 && !hasAlpha) { 862f29ed28c7b878ef28058bc730715d0d32445bc57John Reck nativeErase(bm.mFinalizer.mNativeBitmap, 0xff000000); 863d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy } 8643b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy // No need to initialize the bitmap to zeroes with other configs; 8653b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy // it is backed by a VM byte array which is by definition preinitialized 8663b748a44c6bd2ea05fe16839caf73dbe50bd7ae9Romain Guy // to all zeroes. 8679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return bm; 8689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8698cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 8709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns a immutable bitmap with the specified width and height, with each 87296e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * pixel value set to the corresponding value in the colors array. Its 87396e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * initial density is as per {@link #getDensity}. 8749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 8759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param colors Array of {@link Color} used to initialize the pixels. 8769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param offset Number of values to skip before the first color in the 8779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * array of colors. 8789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param stride Number of colors in the array between rows (must be >= 8799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * width or <= -width). 8809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param width The width of the bitmap 8819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param height The height of the bitmap 8829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param config The bitmap config to create. If the config does not 8839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * support per-pixel alpha (e.g. RGB_565), then the alpha 8849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * bytes in the colors[] will be ignored (assumed to be FF) 8859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IllegalArgumentException if the width or height are <= 0, or if 8869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the color array's length is less than the number of pixels. 8879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static Bitmap createBitmap(int colors[], int offset, int stride, 8899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int width, int height, Config config) { 890dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn return createBitmap(null, colors, offset, stride, width, height, config); 891dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn } 892dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn 893dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn /** 894dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * Returns a immutable bitmap with the specified width and height, with each 895dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * pixel value set to the corresponding value in the colors array. Its 896dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * initial density is determined from the given {@link DisplayMetrics}. 897dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * 898dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param display Display metrics for the display this bitmap will be 899dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * drawn on. 900dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param colors Array of {@link Color} used to initialize the pixels. 901dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param offset Number of values to skip before the first color in the 902dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * array of colors. 903dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param stride Number of colors in the array between rows (must be >= 904dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * width or <= -width). 905dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param width The width of the bitmap 906dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param height The height of the bitmap 907dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param config The bitmap config to create. If the config does not 908dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * support per-pixel alpha (e.g. RGB_565), then the alpha 909dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * bytes in the colors[] will be ignored (assumed to be FF) 910dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @throws IllegalArgumentException if the width or height are <= 0, or if 911dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * the color array's length is less than the number of pixels. 912dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn */ 913dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn public static Bitmap createBitmap(DisplayMetrics display, int colors[], 914dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn int offset, int stride, int width, int height, Config config) { 9159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkWidthHeight(width, height); 9179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (Math.abs(stride) < width) { 9189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("abs(stride) must be >= width"); 9199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int lastScanline = offset + (height - 1) * stride; 9219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int length = colors.length; 9229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (offset < 0 || (offset + width > length) || lastScanline < 0 || 9239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (lastScanline + width > length)) { 9249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new ArrayIndexOutOfBoundsException(); 9259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 926e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy if (width <= 0 || height <= 0) { 927e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy throw new IllegalArgumentException("width and height must be > 0"); 928e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy } 929dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn Bitmap bm = nativeCreate(colors, offset, stride, width, height, 9309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project config.nativeInt, false); 931dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn if (display != null) { 932dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn bm.mDensity = display.densityDpi; 933dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn } 934dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn return bm; 9359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 9389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns a immutable bitmap with the specified width and height, with each 93996e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * pixel value set to the corresponding value in the colors array. Its 94096e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * initial density is as per {@link #getDensity}. 9419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 9429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param colors Array of {@link Color} used to initialize the pixels. 9439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This array must be at least as large as width * height. 9449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param width The width of the bitmap 9459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param height The height of the bitmap 9469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param config The bitmap config to create. If the config does not 9479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * support per-pixel alpha (e.g. RGB_565), then the alpha 9489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * bytes in the colors[] will be ignored (assumed to be FF) 9499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IllegalArgumentException if the width or height are <= 0, or if 9509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the color array's length is less than the number of pixels. 9519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 9529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static Bitmap createBitmap(int colors[], int width, int height, Config config) { 953dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn return createBitmap(null, colors, 0, width, width, height, config); 954dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn } 955dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn 956dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn /** 957dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * Returns a immutable bitmap with the specified width and height, with each 958dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * pixel value set to the corresponding value in the colors array. Its 959dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * initial density is determined from the given {@link DisplayMetrics}. 960dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * 961dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param display Display metrics for the display this bitmap will be 962dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * drawn on. 963dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param colors Array of {@link Color} used to initialize the pixels. 964dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * This array must be at least as large as width * height. 965dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param width The width of the bitmap 966dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param height The height of the bitmap 967dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @param config The bitmap config to create. If the config does not 968dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * support per-pixel alpha (e.g. RGB_565), then the alpha 969dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * bytes in the colors[] will be ignored (assumed to be FF) 970dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * @throws IllegalArgumentException if the width or height are <= 0, or if 971dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn * the color array's length is less than the number of pixels. 972dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn */ 973dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn public static Bitmap createBitmap(DisplayMetrics display, int colors[], 974dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn int width, int height, Config config) { 975dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn return createBitmap(display, colors, 0, width, width, height, config); 9769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 9799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns an optional array of private data, used by the UI system for 9809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * some bitmaps. Not intended to be called by applications. 9819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 9829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public byte[] getNinePatchChunk() { 9839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mNinePatchChunk; 9849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 987c054966b719c8a7255f7cf4120cca5050acb68bdAlan Viverette * Populates a rectangle with the bitmap's optical insets. 988c054966b719c8a7255f7cf4120cca5050acb68bdAlan Viverette * 989c054966b719c8a7255f7cf4120cca5050acb68bdAlan Viverette * @param outInsets Rect to populate with optical insets 990ec4a50428d5f26a22df3edaf7e5b08f41d5cb54bAmith Yamasani * @hide 991ec4a50428d5f26a22df3edaf7e5b08f41d5cb54bAmith Yamasani */ 992c054966b719c8a7255f7cf4120cca5050acb68bdAlan Viverette public void getOpticalInsets(@NonNull Rect outInsets) { 99347cd8e921db73e894f94ec4729ade90da50996f5Chris Craik if (mNinePatchInsets == null) { 994c054966b719c8a7255f7cf4120cca5050acb68bdAlan Viverette outInsets.setEmpty(); 995c054966b719c8a7255f7cf4120cca5050acb68bdAlan Viverette } else { 99647cd8e921db73e894f94ec4729ade90da50996f5Chris Craik outInsets.set(mNinePatchInsets.opticalRect); 997c054966b719c8a7255f7cf4120cca5050acb68bdAlan Viverette } 998ec4a50428d5f26a22df3edaf7e5b08f41d5cb54bAmith Yamasani } 999ec4a50428d5f26a22df3edaf7e5b08f41d5cb54bAmith Yamasani 100047cd8e921db73e894f94ec4729ade90da50996f5Chris Craik /** @hide */ 100147cd8e921db73e894f94ec4729ade90da50996f5Chris Craik public NinePatch.InsetStruct getNinePatchInsets() { 100247cd8e921db73e894f94ec4729ade90da50996f5Chris Craik return mNinePatchInsets; 100347cd8e921db73e894f94ec4729ade90da50996f5Chris Craik } 100447cd8e921db73e894f94ec4729ade90da50996f5Chris Craik 1005ec4a50428d5f26a22df3edaf7e5b08f41d5cb54bAmith Yamasani /** 10069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Specifies the known formats a bitmap can be compressed into 10079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public enum CompressFormat { 10099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project JPEG (0), 10102305ac9e4a262ed09fd034ae417e9b1dda4c0ccbVikas Arora PNG (1), 10112305ac9e4a262ed09fd034ae417e9b1dda4c0ccbVikas Arora WEBP (2); 10129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project CompressFormat(int nativeInt) { 10149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this.nativeInt = nativeInt; 10159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int nativeInt; 10179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Number of bytes of temp storage we use for communicating between the 10219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * native compressor and the java OutputStream. 10229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private final static int WORKING_COMPRESS_STORAGE = 4096; 10249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Write a compressed version of the bitmap to the specified outputstream. 10279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * If this returns true, the bitmap can be reconstructed by passing a 10289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * corresponding inputstream to BitmapFactory.decodeStream(). Note: not 10299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * all Formats support all bitmap configs directly, so it is possible that 10309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the returned bitmap from BitmapFactory could be in a different bitdepth, 10319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * and/or may have lost per-pixel alpha (e.g. JPEG only supports opaque 10329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * pixels). 10339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 10349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param format The format of the compressed image 10359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param quality Hint to the compressor, 0-100. 0 meaning compress for 10369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * small size, 100 meaning compress for max quality. Some 10379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * formats, like PNG which is lossless, will ignore the 10389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * quality setting 10399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param stream The outputstream to write the compressed data. 10409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if successfully compressed to the specified stream. 10419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean compress(CompressFormat format, int quality, OutputStream stream) { 10439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRecycled("Can't compress a recycled bitmap"); 10449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // do explicit check before calling the native method 10459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (stream == null) { 10469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new NullPointerException(); 10479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (quality < 0 || quality > 100) { 10499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("quality must be 0..100"); 10509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10510df3bd5594bbbbfbf6058ecb31e9b94a1cd22f7dJohn Reck Trace.traceBegin(Trace.TRACE_TAG_RESOURCES, "Bitmap.compress"); 1052f29ed28c7b878ef28058bc730715d0d32445bc57John Reck boolean result = nativeCompress(mFinalizer.mNativeBitmap, format.nativeInt, 1053f29ed28c7b878ef28058bc730715d0d32445bc57John Reck quality, stream, new byte[WORKING_COMPRESS_STORAGE]); 10540df3bd5594bbbbfbf6058ecb31e9b94a1cd22f7dJohn Reck Trace.traceEnd(Trace.TRACE_TAG_RESOURCES); 10550df3bd5594bbbbfbf6058ecb31e9b94a1cd22f7dJohn Reck return result; 10569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10578cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 10589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1059ff236f5fc1a088b1210d37a67b0e88b06c0fbdb2Newton Allen * Returns true if the bitmap is marked as mutable (i.e. can be drawn into) 10609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final boolean isMutable() { 10629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mIsMutable; 10639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10653849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy /** 10663849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * <p>Indicates whether pixels stored in this bitmaps are stored pre-multiplied. 10673849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * When a pixel is pre-multiplied, the RGB components have been multiplied by 10683849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * the alpha component. For instance, if the original color is a 50% 1069f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck * translucent red <code>(128, 255, 0, 0)</code>, the pre-multiplied form is 10703849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * <code>(128, 128, 0, 0)</code>.</p> 1071f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck * 10723849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * <p>This method always returns false if {@link #getConfig()} is 10734ff0cf4b83605bff630c4e6f1fabe4f72a3f93a1Romain Guy * {@link Bitmap.Config#RGB_565}.</p> 1074f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck * 107557ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III * <p>The return value is undefined if {@link #getConfig()} is 107657ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III * {@link Bitmap.Config#ALPHA_8}.</p> 107757ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III * 10784ff0cf4b83605bff630c4e6f1fabe4f72a3f93a1Romain Guy * <p>This method only returns true if {@link #hasAlpha()} returns true. 10794ff0cf4b83605bff630c4e6f1fabe4f72a3f93a1Romain Guy * A bitmap with no alpha channel can be used both as a pre-multiplied and 10804ff0cf4b83605bff630c4e6f1fabe4f72a3f93a1Romain Guy * as a non pre-multiplied bitmap.</p> 10811abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * 10821abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * <p>Only pre-multiplied bitmaps may be drawn by the view system or 10831abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * {@link Canvas}. If a non-pre-multiplied bitmap with an alpha channel is 10841abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * drawn to a Canvas, a RuntimeException will be thrown.</p> 10851abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * 10863849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * @return true if the underlying pixels have been pre-multiplied, false 10873849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * otherwise 10881abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * 10891abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * @see Bitmap#setPremultiplied(boolean) 10901abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * @see BitmapFactory.Options#inPremultiplied 10913849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy */ 10923849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy public final boolean isPremultiplied() { 109301a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck if (mRecycled) { 109401a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck Log.w(TAG, "Called isPremultiplied() on a recycle()'d bitmap! This is undefined behavior!"); 109501a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck } 1096f29ed28c7b878ef28058bc730715d0d32445bc57John Reck return nativeIsPremultiplied(mFinalizer.mNativeBitmap); 10971abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik } 10981abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik 10991abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik /** 11001abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * Sets whether the bitmap should treat its data as pre-multiplied. 11011abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * 11021abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * <p>Bitmaps are always treated as pre-multiplied by the view system and 11031abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * {@link Canvas} for performance reasons. Storing un-pre-multiplied data in 11041abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * a Bitmap (through {@link #setPixel}, {@link #setPixels}, or {@link 11051abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * BitmapFactory.Options#inPremultiplied BitmapFactory.Options.inPremultiplied}) 11061abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * can lead to incorrect blending if drawn by the framework.</p> 11071abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * 11081abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * <p>This method will not affect the behavior of a bitmap without an alpha 11091abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * channel, or if {@link #hasAlpha()} returns false.</p> 11101abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * 1111889a1ddd00b74933d5f7daa651d98133bcb034baBen Murdoch * <p>Calling {@link #createBitmap} or {@link #createScaledBitmap} with a source 11128790be6de3644e332ec6a17c855da89ffc13a9bfLeon Scroggins III * Bitmap whose colors are not pre-multiplied may result in a RuntimeException, 11138790be6de3644e332ec6a17c855da89ffc13a9bfLeon Scroggins III * since those functions require drawing the source, which is not supported for 11148790be6de3644e332ec6a17c855da89ffc13a9bfLeon Scroggins III * un-pre-multiplied Bitmaps.</p> 11158790be6de3644e332ec6a17c855da89ffc13a9bfLeon Scroggins III * 11161abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * @see Bitmap#isPremultiplied() 11171abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik * @see BitmapFactory.Options#inPremultiplied 11181abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik */ 11191abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik public final void setPremultiplied(boolean premultiplied) { 11203e776dee3e8af646cdcfb7a60e0e301c99f05293John Reck checkRecycled("setPremultiplied called on a recycled bitmap"); 112157ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III mRequestPremultiplied = premultiplied; 1122f29ed28c7b878ef28058bc730715d0d32445bc57John Reck nativeSetPremultiplied(mFinalizer.mNativeBitmap, premultiplied); 11233849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy } 11243849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy 11259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** Returns the bitmap's width */ 11269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final int getWidth() { 112701a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck if (mRecycled) { 112801a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck Log.w(TAG, "Called getWidth() on a recycle()'d bitmap! This is undefined behavior!"); 112901a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck } 11301abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik return mWidth; 11319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** Returns the bitmap's height */ 11349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final int getHeight() { 113501a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck if (mRecycled) { 113601a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck Log.w(TAG, "Called getHeight() on a recycle()'d bitmap! This is undefined behavior!"); 113701a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck } 11381abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik return mHeight; 11399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11408cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 11419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 114211ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * Convenience for calling {@link #getScaledWidth(int)} with the target 114311ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * density of the given {@link Canvas}. 11449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11452784ff0af88128f66ae690b73d48fb7e4a211e68Dianne Hackborn public int getScaledWidth(Canvas canvas) { 114611ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn return scaleFromDensity(getWidth(), mDensity, canvas.mDensity); 11472784ff0af88128f66ae690b73d48fb7e4a211e68Dianne Hackborn } 11482784ff0af88128f66ae690b73d48fb7e4a211e68Dianne Hackborn 11492784ff0af88128f66ae690b73d48fb7e4a211e68Dianne Hackborn /** 115011ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * Convenience for calling {@link #getScaledHeight(int)} with the target 115111ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * density of the given {@link Canvas}. 11522784ff0af88128f66ae690b73d48fb7e4a211e68Dianne Hackborn */ 11532784ff0af88128f66ae690b73d48fb7e4a211e68Dianne Hackborn public int getScaledHeight(Canvas canvas) { 115411ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn return scaleFromDensity(getHeight(), mDensity, canvas.mDensity); 115511ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn } 115611ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn 115711ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn /** 115811ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * Convenience for calling {@link #getScaledWidth(int)} with the target 115911ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * density of the given {@link DisplayMetrics}. 116011ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn */ 116111ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn public int getScaledWidth(DisplayMetrics metrics) { 116211ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn return scaleFromDensity(getWidth(), mDensity, metrics.densityDpi); 116311ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn } 116411ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn 116511ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn /** 116611ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * Convenience for calling {@link #getScaledHeight(int)} with the target 116711ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * density of the given {@link DisplayMetrics}. 116811ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn */ 116911ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn public int getScaledHeight(DisplayMetrics metrics) { 117011ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn return scaleFromDensity(getHeight(), mDensity, metrics.densityDpi); 11712784ff0af88128f66ae690b73d48fb7e4a211e68Dianne Hackborn } 11722784ff0af88128f66ae690b73d48fb7e4a211e68Dianne Hackborn 11732784ff0af88128f66ae690b73d48fb7e4a211e68Dianne Hackborn /** 11742784ff0af88128f66ae690b73d48fb7e4a211e68Dianne Hackborn * Convenience method that returns the width of this bitmap divided 11752784ff0af88128f66ae690b73d48fb7e4a211e68Dianne Hackborn * by the density scale factor. 11762784ff0af88128f66ae690b73d48fb7e4a211e68Dianne Hackborn * 117711ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @param targetDensity The density of the target canvas of the bitmap. 11782784ff0af88128f66ae690b73d48fb7e4a211e68Dianne Hackborn * @return The scaled width of this bitmap, according to the density scale factor. 11792784ff0af88128f66ae690b73d48fb7e4a211e68Dianne Hackborn */ 118011ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn public int getScaledWidth(int targetDensity) { 118111ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn return scaleFromDensity(getWidth(), mDensity, targetDensity); 11829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Convenience method that returns the height of this bitmap divided 11869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * by the density scale factor. 11879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 118811ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @param targetDensity The density of the target canvas of the bitmap. 11899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The scaled height of this bitmap, according to the density scale factor. 11909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 119111ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn public int getScaledHeight(int targetDensity) { 119211ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn return scaleFromDensity(getHeight(), mDensity, targetDensity); 119311ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn } 1194f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck 119511ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn /** 119611ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @hide 119711ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn */ 119811ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn static public int scaleFromDensity(int size, int sdensity, int tdensity) { 11990b68477f8287fe5ddac1beb1c9d0811ded034dadRomain Guy if (sdensity == DENSITY_NONE || tdensity == DENSITY_NONE || sdensity == tdensity) { 120011ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn return size; 12012784ff0af88128f66ae690b73d48fb7e4a211e68Dianne Hackborn } 1202f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck 120311ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn // Scale by tdensity / sdensity, rounding up. 1204366a84056c9a695ee6702d9d30bf9f3b521ba7ccRomain Guy return ((size * tdensity) + (sdensity >> 1)) / sdensity; 12059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1206f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck 12079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Return the number of bytes between rows in the bitmap's pixels. Note that 12099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this refers to the pixels as stored natively by the bitmap. If you call 12109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * getPixels() or setPixels(), then the pixels are uniformly treated as 12119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 32bit values, packed according to the Color class. 12129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1213e8222dddaf2e3da14380101e818d4254899e0c0dChet Haase * <p>As of {@link android.os.Build.VERSION_CODES#KITKAT}, this method 12149f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik * should not be used to calculate the memory usage of the bitmap. Instead, 12159f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik * see {@link #getAllocationByteCount()}. 12169f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik * 12179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return number of bytes between rows of the native bitmap pixels. 12189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final int getRowBytes() { 122001a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck if (mRecycled) { 122101a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck Log.w(TAG, "Called getRowBytes() on a recycle()'d bitmap! This is undefined behavior!"); 122201a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck } 1223f29ed28c7b878ef28058bc730715d0d32445bc57John Reck return nativeRowBytes(mFinalizer.mNativeBitmap); 12249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12258cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 12269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12279f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik * Returns the minimum number of bytes that can be used to store this bitmap's pixels. 12289f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik * 1229e8222dddaf2e3da14380101e818d4254899e0c0dChet Haase * <p>As of {@link android.os.Build.VERSION_CODES#KITKAT}, the result of this method can 12309f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik * no longer be used to determine memory usage of a bitmap. See {@link 1231c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * #getAllocationByteCount()}.</p> 1232f7f9d9c39df22ad6929f001f07588469f77e8bf5Jesse Wilson */ 1233f7f9d9c39df22ad6929f001f07588469f77e8bf5Jesse Wilson public final int getByteCount() { 1234f7f9d9c39df22ad6929f001f07588469f77e8bf5Jesse Wilson // int result permits bitmaps up to 46,340 x 46,340 1235f7f9d9c39df22ad6929f001f07588469f77e8bf5Jesse Wilson return getRowBytes() * getHeight(); 1236f7f9d9c39df22ad6929f001f07588469f77e8bf5Jesse Wilson } 1237f7f9d9c39df22ad6929f001f07588469f77e8bf5Jesse Wilson 1238f7f9d9c39df22ad6929f001f07588469f77e8bf5Jesse Wilson /** 12399f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik * Returns the size of the allocated memory used to store this bitmap's pixels. 12409f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik * 12419f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik * <p>This can be larger than the result of {@link #getByteCount()} if a bitmap is reused to 1242c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * decode other bitmaps of smaller size, or by manual reconfiguration. See {@link 1243c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * #reconfigure(int, int, Config)}, {@link #setWidth(int)}, {@link #setHeight(int)}, {@link 1244c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * #setConfig(Bitmap.Config)}, and {@link BitmapFactory.Options#inBitmap 1245c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * BitmapFactory.Options.inBitmap}. If a bitmap is not modified in this way, this value will be 1246c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * the same as that returned by {@link #getByteCount()}.</p> 1247c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * 1248c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * <p>This value will not change over the lifetime of a Bitmap.</p> 12499f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik * 1250c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik * @see #reconfigure(int, int, Config) 12519f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik */ 12529f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik public final int getAllocationByteCount() { 1253222f2ad294c9046b62af5e059f8b409aec044ce9Chris Craik if (mBuffer == null) { 1254222f2ad294c9046b62af5e059f8b409aec044ce9Chris Craik // native backed bitmaps don't support reconfiguration, 1255222f2ad294c9046b62af5e059f8b409aec044ce9Chris Craik // so alloc size is always content size 1256222f2ad294c9046b62af5e059f8b409aec044ce9Chris Craik return getByteCount(); 1257222f2ad294c9046b62af5e059f8b409aec044ce9Chris Craik } 12589f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik return mBuffer.length; 12599f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik } 12609f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik 12619f58361e98be7386a4eadd3aa254e9b7d09d0a3bChris Craik /** 12629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * If the bitmap's internal config is in one of the public formats, return 12639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * that config, otherwise return null. 12649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final Config getConfig() { 126601a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck if (mRecycled) { 126701a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck Log.w(TAG, "Called getConfig() on a recycle()'d bitmap! This is undefined behavior!"); 126801a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck } 1269f29ed28c7b878ef28058bc730715d0d32445bc57John Reck return Config.nativeToConfig(nativeConfig(mFinalizer.mNativeBitmap)); 12709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1272a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed /** Returns true if the bitmap's config supports per-pixel alpha, and 1273a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed * if the pixels may contain non-opaque alpha values. For some configs, 1274a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed * this is always false (e.g. RGB_565), since they do not support per-pixel 1275a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed * alpha. However, for configs that do, the bitmap may be flagged to be 1276a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed * known that all of its pixels are opaque. In this case hasAlpha() will 1277a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed * also return false. If a config such as ARGB_8888 is not so flagged, 1278a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed * it will return true by default. 1279a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed */ 12809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final boolean hasAlpha() { 128101a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck if (mRecycled) { 128201a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck Log.w(TAG, "Called hasAlpha() on a recycle()'d bitmap! This is undefined behavior!"); 128301a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck } 1284f29ed28c7b878ef28058bc730715d0d32445bc57John Reck return nativeHasAlpha(mFinalizer.mNativeBitmap); 12859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1288a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed * Tell the bitmap if all of the pixels are known to be opaque (false) 1289a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed * or if some of the pixels may contain non-opaque alpha values (true). 1290366a84056c9a695ee6702d9d30bf9f3b521ba7ccRomain Guy * Note, for some configs (e.g. RGB_565) this call is ignored, since it 1291366a84056c9a695ee6702d9d30bf9f3b521ba7ccRomain Guy * does not support per-pixel alpha values. 1292a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed * 1293a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed * This is meant as a drawing hint, as in some cases a bitmap that is known 1294a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed * to be opaque can take a faster drawing case than one that may have 1295a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed * non-opaque per-pixel alpha values. 1296a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed */ 1297a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed public void setHasAlpha(boolean hasAlpha) { 12983e776dee3e8af646cdcfb7a60e0e301c99f05293John Reck checkRecycled("setHasAlpha called on a recycled bitmap"); 1299f29ed28c7b878ef28058bc730715d0d32445bc57John Reck nativeSetHasAlpha(mFinalizer.mNativeBitmap, hasAlpha, mRequestPremultiplied); 1300a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed } 1301a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed 1302a78b0a2d9ebb38b86ed802b3d86de07d0b301262Mike Reed /** 1303713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * Indicates whether the renderer responsible for drawing this 1304713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * bitmap should attempt to use mipmaps when this bitmap is drawn 1305713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * scaled down. 1306f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck * 1307713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * If you know that you are going to draw this bitmap at less than 1308713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * 50% of its original size, you may be able to obtain a higher 1309713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * quality 1310f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck * 1311713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * This property is only a suggestion that can be ignored by the 1312713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * renderer. It is not guaranteed to have any effect. 1313f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck * 1314713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * @return true if the renderer should attempt to use mipmaps, 1315713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * false otherwise 1316f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck * 1317713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * @see #setHasMipMap(boolean) 1318713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy */ 1319713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy public final boolean hasMipMap() { 132001a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck if (mRecycled) { 132101a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck Log.w(TAG, "Called hasMipMap() on a recycle()'d bitmap! This is undefined behavior!"); 132201a0af31d7d418f400ce5d3f752eba6a35aa00e2John Reck } 1323f29ed28c7b878ef28058bc730715d0d32445bc57John Reck return nativeHasMipMap(mFinalizer.mNativeBitmap); 1324713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy } 1325713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy 1326713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy /** 1327713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * Set a hint for the renderer responsible for drawing this bitmap 1328713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * indicating that it should attempt to use mipmaps when this bitmap 1329713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * is drawn scaled down. 1330713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * 1331713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * If you know that you are going to draw this bitmap at less than 1332713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * 50% of its original size, you may be able to obtain a higher 1333713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * quality by turning this property on. 1334f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck * 1335713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * Note that if the renderer respects this hint it might have to 1336713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * allocate extra memory to hold the mipmap levels for this bitmap. 1337713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * 1338713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * This property is only a suggestion that can be ignored by the 1339713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * renderer. It is not guaranteed to have any effect. 1340713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * 1341713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * @param hasMipMap indicates whether the renderer should attempt 1342713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * to use mipmaps 1343713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * 1344713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy * @see #hasMipMap() 1345713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy */ 1346713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy public final void setHasMipMap(boolean hasMipMap) { 13473e776dee3e8af646cdcfb7a60e0e301c99f05293John Reck checkRecycled("setHasMipMap called on a recycled bitmap"); 1348f29ed28c7b878ef28058bc730715d0d32445bc57John Reck nativeSetHasMipMap(mFinalizer.mNativeBitmap, hasMipMap); 1349713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy } 1350713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy 1351713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5Romain Guy /** 13529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fills the bitmap's pixels with the specified {@link Color}. 13539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IllegalStateException if the bitmap is not mutable. 13559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 135680756e38882720860db52f1fcc21fa1505a02abfTor Norbye public void eraseColor(@ColorInt int c) { 13579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRecycled("Can't erase a recycled bitmap"); 13589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!isMutable()) { 13599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalStateException("cannot erase immutable bitmaps"); 13609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1361f29ed28c7b878ef28058bc730715d0d32445bc57John Reck nativeErase(mFinalizer.mNativeBitmap, c); 13629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the {@link Color} at the specified location. Throws an exception 13669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * if x or y are out of bounds (negative or >= to the width or height 13673849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * respectively). The returned color is a non-premultiplied ARGB value. 13689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x The x coordinate (0...width-1) of the pixel to return 13709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y The y coordinate (0...height-1) of the pixel to return 13719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The argb {@link Color} at the specified coordinate 13729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IllegalArgumentException if x, y exceed the bitmap's bounds 13739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 137480756e38882720860db52f1fcc21fa1505a02abfTor Norbye @ColorInt 13759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getPixel(int x, int y) { 13769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRecycled("Can't call getPixel() on a recycled bitmap"); 13779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkPixelAccess(x, y); 1378f29ed28c7b878ef28058bc730715d0d32445bc57John Reck return nativeGetPixel(mFinalizer.mNativeBitmap, x, y); 13799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13808cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 13819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns in pixels[] a copy of the data in the bitmap. Each value is 13839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * a packed int representing a {@link Color}. The stride parameter allows 13849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the caller to allow for gaps in the returned pixels array between 13859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * rows. For normal packed results, just pass width for the stride value. 13863849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * The returned colors are non-premultiplied ARGB values. 13879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param pixels The array to receive the bitmap's colors 13899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param offset The first index to write into pixels[] 13909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param stride The number of entries in pixels[] to skip between 13919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * rows (must be >= bitmap's width). Can be negative. 13929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x The x coordinate of the first pixel to read from 13939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bitmap 13949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y The y coordinate of the first pixel to read from 13959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bitmap 13969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param width The number of pixels to read from each row 13979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param height The number of rows to read 13983849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * 13999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IllegalArgumentException if x, y, width, height exceed the 14009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * bounds of the bitmap, or if abs(stride) < width. 14019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws ArrayIndexOutOfBoundsException if the pixels array is too small 14029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to receive the specified number of pixels. 14039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 140480756e38882720860db52f1fcc21fa1505a02abfTor Norbye public void getPixels(@ColorInt int[] pixels, int offset, int stride, 14059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int x, int y, int width, int height) { 14069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRecycled("Can't call getPixels() on a recycled bitmap"); 14079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (width == 0 || height == 0) { 14089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; // nothing to do 14099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkPixelsAccess(x, y, width, height, offset, stride, pixels); 1411f29ed28c7b878ef28058bc730715d0d32445bc57John Reck nativeGetPixels(mFinalizer.mNativeBitmap, pixels, offset, stride, 141257ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III x, y, width, height); 14139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14148cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 14159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Shared code to check for illegal arguments passed to getPixel() 14179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * or setPixel() 1418f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck * 14199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x x coordinate of the pixel 14209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y y coordinate of the pixel 14219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void checkPixelAccess(int x, int y) { 14239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkXYSign(x, y); 14249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (x >= getWidth()) { 14259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("x must be < bitmap.width()"); 14269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (y >= getHeight()) { 14289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("y must be < bitmap.height()"); 14299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Shared code to check for illegal arguments passed to getPixels() 14349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * or setPixels() 14359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x left edge of the area of pixels to access 14379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y top edge of the area of pixels to access 14389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param width width of the area of pixels to access 14399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param height height of the area of pixels to access 14409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param offset offset into pixels[] array 14419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param stride number of elements in pixels[] between each logical row 14429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param pixels array to hold the area of pixels being accessed 14439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void checkPixelsAccess(int x, int y, int width, int height, 14459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int offset, int stride, int pixels[]) { 14469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkXYSign(x, y); 14479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (width < 0) { 14489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("width must be >= 0"); 14499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height < 0) { 14519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("height must be >= 0"); 14529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (x + width > getWidth()) { 14549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException( 14559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "x + width must be <= bitmap.width()"); 14569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (y + height > getHeight()) { 14589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException( 14599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "y + height must be <= bitmap.height()"); 14609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (Math.abs(stride) < width) { 14629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("abs(stride) must be >= width"); 14639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int lastScanline = offset + (height - 1) * stride; 14659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int length = pixels.length; 14669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (offset < 0 || (offset + width > length) 14679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project || lastScanline < 0 14689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project || (lastScanline + width > length)) { 14699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new ArrayIndexOutOfBoundsException(); 14709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14728cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 14739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14743849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * <p>Write the specified {@link Color} into the bitmap (assuming it is 14753849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * mutable) at the x,y coordinate. The color must be a 14763849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * non-premultiplied ARGB value.</p> 14779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x The x coordinate of the pixel to replace (0...width-1) 14799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y The y coordinate of the pixel to replace (0...height-1) 14803849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * @param color The ARGB color to write into the bitmap 14813849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * 14829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IllegalStateException if the bitmap is not mutable 14839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IllegalArgumentException if x, y are outside of the bitmap's 14849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * bounds. 14859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 148680756e38882720860db52f1fcc21fa1505a02abfTor Norbye public void setPixel(int x, int y, @ColorInt int color) { 14879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRecycled("Can't call setPixel() on a recycled bitmap"); 14889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!isMutable()) { 14899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalStateException(); 14909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkPixelAccess(x, y); 1492f29ed28c7b878ef28058bc730715d0d32445bc57John Reck nativeSetPixel(mFinalizer.mNativeBitmap, x, y, color); 14939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14948cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 14959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14963849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * <p>Replace pixels in the bitmap with the colors in the array. Each element 14973849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * in the array is a packed int prepresenting a non-premultiplied ARGB 14983849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * {@link Color}.</p> 14999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param pixels The colors to write to the bitmap 15019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param offset The index of the first color to read from pixels[] 15029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param stride The number of colors in pixels[] to skip between rows. 15039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Normally this value will be the same as the width of 15049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bitmap, but it can be larger (or negative). 15059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x The x coordinate of the first pixel to write to in 15069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bitmap. 15079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y The y coordinate of the first pixel to write to in 15089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bitmap. 15099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param width The number of colors to copy from pixels[] per row 15109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param height The number of rows to write to the bitmap 15113849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy * 15129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IllegalStateException if the bitmap is not mutable 15139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IllegalArgumentException if x, y, width, height are outside of 15149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bitmap's bounds. 15159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws ArrayIndexOutOfBoundsException if the pixels array is too small 15169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to receive the specified number of pixels. 15179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 151880756e38882720860db52f1fcc21fa1505a02abfTor Norbye public void setPixels(@ColorInt int[] pixels, int offset, int stride, 15193849f93b3c2b29ca3873b602897dccac039a0b98Romain Guy int x, int y, int width, int height) { 15209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRecycled("Can't call setPixels() on a recycled bitmap"); 15219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!isMutable()) { 15229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalStateException(); 15239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (width == 0 || height == 0) { 15259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; // nothing to do 15269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkPixelsAccess(x, y, width, height, offset, stride, pixels); 1528f29ed28c7b878ef28058bc730715d0d32445bc57John Reck nativeSetPixels(mFinalizer.mNativeBitmap, pixels, offset, stride, 152957ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III x, y, width, height); 15309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15318cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 15329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final Parcelable.Creator<Bitmap> CREATOR 15339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project = new Parcelable.Creator<Bitmap>() { 15349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rebuilds a bitmap previously stored with writeToParcel(). 15369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param p Parcel object to read the bitmap from 15389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return a new bitmap created from the data in the parcel 15399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Bitmap createFromParcel(Parcel p) { 15419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Bitmap bm = nativeCreateFromParcel(p); 15429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (bm == null) { 15439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException("Failed to unparcel Bitmap"); 15449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return bm; 15469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Bitmap[] newArray(int size) { 15489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new Bitmap[size]; 15499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }; 15519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * No special parcel contents. 15549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int describeContents() { 1556b6377170960d40e66858d8b4d335a95eac773762Bart Sears return 0; 15579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Write the bitmap and its pixels to the parcel. The bitmap can be 15619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * rebuilt from the parcel by calling CREATOR.createFromParcel(). 15629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param p Parcel object to write the bitmap data into 15639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void writeToParcel(Parcel p, int flags) { 15659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRecycled("Can't parcel a recycled bitmap"); 1566f29ed28c7b878ef28058bc730715d0d32445bc57John Reck if (!nativeWriteToParcel(mFinalizer.mNativeBitmap, mIsMutable, mDensity, p)) { 15679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException("native writeToParcel failed"); 15689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns a new bitmap that captures the alpha values of the original. 15739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This may be drawn with Canvas.drawBitmap(), where the color(s) will be 15749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * taken from the paint that is passed to the draw call. 15759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return new bitmap containing the alpha channel of the original bitmap. 15779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15781c2bf03d1082fc6b7eb42cbd163c60c07cf2bcccTor Norbye @CheckResult 15799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Bitmap extractAlpha() { 15809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return extractAlpha(null, null); 15819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15828cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 15839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns a new bitmap that captures the alpha values of the original. 15859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * These values may be affected by the optional Paint parameter, which 15869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * can contain its own alpha, and may also contain a MaskFilter which 15879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * could change the actual dimensions of the resulting bitmap (e.g. 15889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * a blur maskfilter might enlarge the resulting bitmap). If offsetXY 15899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is not null, it returns the amount to offset the returned bitmap so 15909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * that it will logically align with the original. For example, if the 15919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * paint contains a blur of radius 2, then offsetXY[] would contains 15929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * -2, -2, so that drawing the alpha bitmap offset by (-2, -2) and then 15939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * drawing the original would result in the blur visually aligning with 15949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the original. 1595f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck * 159696e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * <p>The initial density of the returned bitmap is the same as the original's. 1597f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck * 15989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint Optional paint used to modify the alpha values in the 15999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * resulting bitmap. Pass null for default behavior. 16009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param offsetXY Optional array that returns the X (index 0) and Y 16019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (index 1) offset needed to position the returned bitmap 16029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * so that it visually lines up with the original. 16039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return new bitmap containing the (optionally modified by paint) alpha 16049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * channel of the original bitmap. This may be drawn with 16059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Canvas.drawBitmap(), where the color(s) will be taken from the 16069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * paint that is passed to the draw call. 16079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16081c2bf03d1082fc6b7eb42cbd163c60c07cf2bcccTor Norbye @CheckResult 16099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Bitmap extractAlpha(Paint paint, int[] offsetXY) { 16109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRecycled("Can't extractAlpha on a recycled bitmap"); 1611dfba4d3d11bbf47dff45f94d61d4d97510b3034aDerek Sollenberger long nativePaint = paint != null ? paint.getNativeInstance() : 0; 1612f29ed28c7b878ef28058bc730715d0d32445bc57John Reck Bitmap bm = nativeExtractAlpha(mFinalizer.mNativeBitmap, nativePaint, offsetXY); 16139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (bm == null) { 16149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException("Failed to extractAlpha on Bitmap"); 16159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 161696e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn bm.mDensity = mDensity; 16179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return bm; 16189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16208cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen /** 162176d1e01d5e65c4631c827831e98ad4e300d99eabMike Reed * Given another bitmap, return true if it has the same dimensions, config, 162276d1e01d5e65c4631c827831e98ad4e300d99eabMike Reed * and pixel data as this bitmap. If any of those differ, return false. 162376d1e01d5e65c4631c827831e98ad4e300d99eabMike Reed * If other is null, return false. 162476d1e01d5e65c4631c827831e98ad4e300d99eabMike Reed */ 162576d1e01d5e65c4631c827831e98ad4e300d99eabMike Reed public boolean sameAs(Bitmap other) { 16269298c5414172344f2462beda70e624af5f774483John Reck checkRecycled("Can't call sameAs on a recycled bitmap!"); 16273df4869a77bdeb72d5810bbcf7819ed1b8dd0ec7John Reck if (this == other) return true; 16283df4869a77bdeb72d5810bbcf7819ed1b8dd0ec7John Reck if (other == null) return false; 16299298c5414172344f2462beda70e624af5f774483John Reck if (other.isRecycled()) { 16309298c5414172344f2462beda70e624af5f774483John Reck throw new IllegalArgumentException("Can't compare to a recycled bitmap!"); 16319298c5414172344f2462beda70e624af5f774483John Reck } 16323df4869a77bdeb72d5810bbcf7819ed1b8dd0ec7John Reck return nativeSameAs(mFinalizer.mNativeBitmap, other.mFinalizer.mNativeBitmap); 163376d1e01d5e65c4631c827831e98ad4e300d99eabMike Reed } 163476d1e01d5e65c4631c827831e98ad4e300d99eabMike Reed 163576d1e01d5e65c4631c827831e98ad4e300d99eabMike Reed /** 16368cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen * Rebuilds any caches associated with the bitmap that are used for 16378cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen * drawing it. In the case of purgeable bitmaps, this call will attempt to 16388cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen * ensure that the pixels have been decoded. 16398cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen * If this is called on more than one bitmap in sequence, the priority is 16408cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen * given in LRU order (i.e. the last bitmap called will be given highest 16418cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen * priority). 16428cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen * 16438cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen * For bitmaps with no associated caches, this call is effectively a no-op, 16448cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen * and therefore is harmless. 16458cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen */ 16468cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen public void prepareToDraw() { 1647f29ed28c7b878ef28058bc730715d0d32445bc57John Reck // TODO: Consider having this start an async upload? 1648f29ed28c7b878ef28058bc730715d0d32445bc57John Reck // With inPurgeable no-op'd there's currently no use for this 1649f29ed28c7b878ef28058bc730715d0d32445bc57John Reck // method, but it could have interesting future uses. 1650ad57442fd00e7fd7f1885d23372ec5c85e176820John Reck checkRecycled("Can't prepareToDraw on a recycled bitmap!"); 1651f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck } 1652f4faeac3525fe1ce3707ab785a1651aec367589dJohn Reck 1653c6e2e8ff474ae44bab5b9eb665851118abd27b68John Reck /** 1654c6e2e8ff474ae44bab5b9eb665851118abd27b68John Reck * Refs the underlying SkPixelRef and returns a pointer to it. 1655c6e2e8ff474ae44bab5b9eb665851118abd27b68John Reck * 1656c6e2e8ff474ae44bab5b9eb665851118abd27b68John Reck * @hide 1657c6e2e8ff474ae44bab5b9eb665851118abd27b68John Reck * */ 1658c6e2e8ff474ae44bab5b9eb665851118abd27b68John Reck public final long refSkPixelRef() { 1659ad57442fd00e7fd7f1885d23372ec5c85e176820John Reck checkRecycled("Can't refSkPixelRef on a recycled bitmap!"); 1660f29ed28c7b878ef28058bc730715d0d32445bc57John Reck return nativeRefPixelRef(mNativePtr); 1661c6e2e8ff474ae44bab5b9eb665851118abd27b68John Reck } 1662c6e2e8ff474ae44bab5b9eb665851118abd27b68John Reck 1663e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy private static class BitmapFinalizer { 16644018eb376383a9bbe2aa75a95cc6917ca72aa0b7John Reck private long mNativeBitmap; 166502890fd0f98b3b8d98baf0bda1ea906afd723d8bRomain Guy 16664cd7dbc90f93893f521dce32d8cd25c02a185a24Chris Craik // Native memory allocated for the duration of the Bitmap, 16674cd7dbc90f93893f521dce32d8cd25c02a185a24Chris Craik // if pixel data allocated into native memory, instead of java byte[] 1668f29ed28c7b878ef28058bc730715d0d32445bc57John Reck private int mNativeAllocationByteCount; 16694cd7dbc90f93893f521dce32d8cd25c02a185a24Chris Craik 1670f29ed28c7b878ef28058bc730715d0d32445bc57John Reck BitmapFinalizer(long nativeBitmap) { 1671e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy mNativeBitmap = nativeBitmap; 1672f29ed28c7b878ef28058bc730715d0d32445bc57John Reck } 16734cd7dbc90f93893f521dce32d8cd25c02a185a24Chris Craik 1674f29ed28c7b878ef28058bc730715d0d32445bc57John Reck public void setNativeAllocationByteCount(int nativeByteCount) { 1675f29ed28c7b878ef28058bc730715d0d32445bc57John Reck if (mNativeAllocationByteCount != 0) { 1676f29ed28c7b878ef28058bc730715d0d32445bc57John Reck VMRuntime.getRuntime().registerNativeFree(mNativeAllocationByteCount); 1677f29ed28c7b878ef28058bc730715d0d32445bc57John Reck } 1678f29ed28c7b878ef28058bc730715d0d32445bc57John Reck mNativeAllocationByteCount = nativeByteCount; 16794cd7dbc90f93893f521dce32d8cd25c02a185a24Chris Craik if (mNativeAllocationByteCount != 0) { 16804cd7dbc90f93893f521dce32d8cd25c02a185a24Chris Craik VMRuntime.getRuntime().registerNativeAllocation(mNativeAllocationByteCount); 16814cd7dbc90f93893f521dce32d8cd25c02a185a24Chris Craik } 168202890fd0f98b3b8d98baf0bda1ea906afd723d8bRomain Guy } 168302890fd0f98b3b8d98baf0bda1ea906afd723d8bRomain Guy 168402890fd0f98b3b8d98baf0bda1ea906afd723d8bRomain Guy @Override 1685e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy public void finalize() { 1686366a84056c9a695ee6702d9d30bf9f3b521ba7ccRomain Guy try { 1687366a84056c9a695ee6702d9d30bf9f3b521ba7ccRomain Guy super.finalize(); 1688366a84056c9a695ee6702d9d30bf9f3b521ba7ccRomain Guy } catch (Throwable t) { 1689366a84056c9a695ee6702d9d30bf9f3b521ba7ccRomain Guy // Ignore 1690366a84056c9a695ee6702d9d30bf9f3b521ba7ccRomain Guy } finally { 1691f29ed28c7b878ef28058bc730715d0d32445bc57John Reck setNativeAllocationByteCount(0); 1692366a84056c9a695ee6702d9d30bf9f3b521ba7ccRomain Guy nativeDestructor(mNativeBitmap); 16934018eb376383a9bbe2aa75a95cc6917ca72aa0b7John Reck mNativeBitmap = 0; 1694366a84056c9a695ee6702d9d30bf9f3b521ba7ccRomain Guy } 16959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16978cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 16989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //////////// native methods 16999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native Bitmap nativeCreate(int[] colors, int offset, 17019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int stride, int width, int height, 1702c84d203da21c3ae3ded94c79c035d41b27809b3bChris Craik int nativeConfig, boolean mutable); 170336bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat private static native Bitmap nativeCopy(long nativeSrcBitmap, int nativeConfig, 17049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean isMutable); 1705721ae5fec5f1fd4f93aa2a361a0ac298e15ce353Riley Andrews private static native Bitmap nativeCopyAshmem(long nativeSrcBitmap); 170636bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat private static native void nativeDestructor(long nativeBitmap); 170736bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat private static native boolean nativeRecycle(long nativeBitmap); 170836bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat private static native void nativeReconfigure(long nativeBitmap, int width, int height, 170917a8bfc38a565ae96f43d36b223779be840bb50cLeon Scroggins III int config, int allocSize, 171017a8bfc38a565ae96f43d36b223779be840bb50cLeon Scroggins III boolean isPremultiplied); 17119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 171236bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat private static native boolean nativeCompress(long nativeBitmap, int format, 17139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int quality, OutputStream stream, 17149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project byte[] tempStorage); 171536bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat private static native void nativeErase(long nativeBitmap, int color); 171636bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat private static native int nativeRowBytes(long nativeBitmap); 171736bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat private static native int nativeConfig(long nativeBitmap); 17188cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 171957ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III private static native int nativeGetPixel(long nativeBitmap, int x, int y); 172036bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat private static native void nativeGetPixels(long nativeBitmap, int[] pixels, 17211abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik int offset, int stride, int x, int y, 172257ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III int width, int height); 17238cdcb12752b716d0407733fecefcf1d9e926310aWei-Ta Chen 172457ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III private static native void nativeSetPixel(long nativeBitmap, int x, int y, int color); 172536bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat private static native void nativeSetPixels(long nativeBitmap, int[] colors, 17261abf5d62429e5a9329520b2f7c2b5a5e7a8e72ecChris Craik int offset, int stride, int x, int y, 172757ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III int width, int height); 172836bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat private static native void nativeCopyPixelsToBuffer(long nativeBitmap, 17299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Buffer dst); 173036bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat private static native void nativeCopyPixelsFromBuffer(long nativeBitmap, Buffer src); 173136bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat private static native int nativeGenerationId(long nativeBitmap); 17329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native Bitmap nativeCreateFromParcel(Parcel p); 17349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // returns true on success 173536bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat private static native boolean nativeWriteToParcel(long nativeBitmap, 17369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean isMutable, 1737de0dfb7b65a02d4dd74c271b558adee0973fc267Dianne Hackborn int density, 17389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Parcel p); 17399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // returns a new bitmap built from the native bitmap's alpha, and the paint 174036bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat private static native Bitmap nativeExtractAlpha(long nativeBitmap, 174136bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat long nativePaint, 17429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] offsetXY); 17439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 174436bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat private static native boolean nativeHasAlpha(long nativeBitmap); 174557ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III private static native boolean nativeIsPremultiplied(long nativeBitmap); 174657ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III private static native void nativeSetPremultiplied(long nativeBitmap, 174757ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III boolean isPremul); 174857ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III private static native void nativeSetHasAlpha(long nativeBitmap, 174957ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III boolean hasAlpha, 175057ee620ced8caed1eb8651717f6a6d2d5f1f9a5bLeon Scroggins III boolean requestPremul); 175136bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat private static native boolean nativeHasMipMap(long nativeBitmap); 175236bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat private static native void nativeSetHasMipMap(long nativeBitmap, boolean hasMipMap); 175336bef0bf30d6bae48cf3837df351075ca4fce654Ashok Bhat private static native boolean nativeSameAs(long nativeBitmap0, long nativeBitmap1); 1754c6e2e8ff474ae44bab5b9eb665851118abd27b68John Reck private static native long nativeRefPixelRef(long nativeBitmap); 17559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 1756