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Commit b27f9146 authored by Eric Miao's avatar Eric Miao
Browse files

Track Bitmap native allocations 

Bug: 331243037
Flag: com.android.libcore.native_metrics

This CL will make use of the new API to create NativeAllocationRegistry
that associates with Bitmap.class if libcore.native_metrics is enabled
(otherwise falls back to the legacy API).

This allows tracking of native allocations that are Bitmap specific.

Change-Id: I2d2875eeaf2b1ab6d1a0419977390f31206ed560
parent ad216bac

graphics/java/android/graphics/Bitmap.java

+18 −11
Original line number Diff line number Diff line
@@ -127,6 +127,22 @@ public final class Bitmap implements Parcelable { 
     */

    private static final WeakHashMap<Bitmap, Void> sAllBitmaps = new WeakHashMap<>();



    /**

     * @hide

     */

    private static NativeAllocationRegistry getRegistry(boolean malloc, long size) {

        final long free = nativeGetNativeFinalizer();

        if (com.android.libcore.Flags.nativeMetrics()) {

            Class cls = Bitmap.class;

            return malloc ? NativeAllocationRegistry.createMalloced(cls, free, size)

                          : NativeAllocationRegistry.createNonmalloced(cls, free, size);

        } else {

            ClassLoader loader = Bitmap.class.getClassLoader();

            return malloc ? NativeAllocationRegistry.createMalloced(loader, free, size)

                          : NativeAllocationRegistry.createNonmalloced(loader, free, size);

        }

    }



    /**

     * Private constructor that must receive an already allocated native bitmap

     * int (pointer).
@@ -151,7 +167,6 @@ public final class Bitmap implements Parcelable { 
        mWidth = width;

        mHeight = height;

        mRequestPremultiplied = requestPremultiplied;



        mNinePatchChunk = ninePatchChunk;

        mNinePatchInsets = ninePatchInsets;

        if (density >= 0) {
@@ -159,17 +174,9 @@ public final class Bitmap implements Parcelable { 
        }



        mNativePtr = nativeBitmap;



        final int allocationByteCount = getAllocationByteCount();

        NativeAllocationRegistry registry;

        if (fromMalloc) {

            registry = NativeAllocationRegistry.createMalloced(

                    Bitmap.class.getClassLoader(), nativeGetNativeFinalizer(), allocationByteCount);

        } else {

            registry = NativeAllocationRegistry.createNonmalloced(

                    Bitmap.class.getClassLoader(), nativeGetNativeFinalizer(), allocationByteCount);

        }

        registry.registerNativeAllocation(this, nativeBitmap);

        getRegistry(fromMalloc, allocationByteCount).registerNativeAllocation(this, mNativePtr);



        synchronized (Bitmap.class) {

          sAllBitmaps.put(this, null);

        }