Provide access to the bitmap's SharedMemory.
The shared memory object can then be passed through HIDL
to avoid unecessary copying of pixel data.
Test: WearOS DisplayOffload
Bug: 260872900
Change-Id: I7f78d2940a295190bd1f1076a01419481dd0d15c
diff --git a/libs/hwui/jni/Bitmap.cpp b/libs/hwui/jni/Bitmap.cpp
index 540abec..c68a6b9 100755
--- a/libs/hwui/jni/Bitmap.cpp
+++ b/libs/hwui/jni/Bitmap.cpp
@@ -422,6 +422,11 @@
return ret;
}
+static jint Bitmap_getAshmemFd(JNIEnv* env, jobject, jlong bitmapHandle) {
+ LocalScopedBitmap bitmap(bitmapHandle);
+ return (bitmap.valid()) ? bitmap->bitmap().getAshmemFd() : -1;
+}
+
static void Bitmap_destruct(BitmapWrapper* bitmap) {
delete bitmap;
}
@@ -1257,6 +1262,7 @@
(void*)Bitmap_copyAshmem },
{ "nativeCopyAshmemConfig", "(JI)Landroid/graphics/Bitmap;",
(void*)Bitmap_copyAshmemConfig },
+ { "nativeGetAshmemFD", "(J)I", (void*)Bitmap_getAshmemFd },
{ "nativeGetNativeFinalizer", "()J", (void*)Bitmap_getNativeFinalizer },
{ "nativeRecycle", "(J)V", (void*)Bitmap_recycle },
{ "nativeReconfigure", "(JIIIZ)V", (void*)Bitmap_reconfigure },
