Add ACameraMetadata_fromCameraMetadata.
Test: atest android.hardware.camera2.cts.CameraManagerTest#testCameraCharacteristicsNdkFromSdk android.hardware.camera2.cts.CaptureResultTest#testCameraCaptureResultAllKeys
Bug: 80513080
Change-Id: If3ec6e9531829f2eaec788df237ff69083a6c580
diff --git a/camera/ndk/NdkCameraMetadata.cpp b/camera/ndk/NdkCameraMetadata.cpp
index 9a39ed8..99691ed 100644
--- a/camera/ndk/NdkCameraMetadata.cpp
+++ b/camera/ndk/NdkCameraMetadata.cpp
@@ -26,6 +26,68 @@
using namespace android;
+#ifndef __ANDROID_VNDK__
+namespace {
+
+constexpr const char* android_hardware_camera2_CameraMetadata_jniClassName =
+ "android/hardware/camera2/CameraMetadata";
+constexpr const char* android_hardware_camera2_CameraCharacteristics_jniClassName =
+ "android/hardware/camera2/CameraCharacteristics";
+constexpr const char* android_hardware_camera2_CaptureResult_jniClassName =
+ "android/hardware/camera2/CaptureResult";
+
+jclass android_hardware_camera2_CameraCharacteristics_clazz = nullptr;
+jclass android_hardware_camera2_CaptureResult_clazz = nullptr;
+jmethodID android_hardware_camera2_CameraMetadata_getNativeMetadataPtr = nullptr;
+
+// Called at most once to initializes global variables used by JNI.
+bool InitJni(JNIEnv* env) {
+ // From C++11 onward, static initializers are guaranteed to be executed at most once,
+ // even if called from multiple threads.
+ static bool ok = [env]() -> bool {
+ const jclass cameraMetadataClazz = env->FindClass(
+ android_hardware_camera2_CameraMetadata_jniClassName);
+ if (cameraMetadataClazz == nullptr) {
+ return false;
+ }
+ android_hardware_camera2_CameraMetadata_getNativeMetadataPtr =
+ env->GetMethodID(cameraMetadataClazz, "getNativeMetadataPtr", "()J");
+ if (android_hardware_camera2_CameraMetadata_getNativeMetadataPtr == nullptr) {
+ return false;
+ }
+
+ android_hardware_camera2_CameraCharacteristics_clazz = env->FindClass(
+ android_hardware_camera2_CameraCharacteristics_jniClassName);
+ if (android_hardware_camera2_CameraCharacteristics_clazz == nullptr) {
+ return false;
+ }
+
+ android_hardware_camera2_CaptureResult_clazz = env->FindClass(
+ android_hardware_camera2_CaptureResult_jniClassName);
+ if (android_hardware_camera2_CaptureResult_clazz == nullptr) {
+ return false;
+ }
+
+ return true;
+ }();
+ return ok;
+}
+
+// Given cameraMetadata, an instance of android.hardware.camera2.CameraMetadata, invokes
+// cameraMetadata.getNativeMetadataPtr() and returns it as a CameraMetadata*.
+CameraMetadata* CameraMetadata_getNativeMetadataPtr(JNIEnv* env, jobject cameraMetadata) {
+ if (cameraMetadata == nullptr) {
+ ALOGE("%s: Invalid Java CameraMetadata object.", __FUNCTION__);
+ return nullptr;
+ }
+ jlong ret = env->CallLongMethod(cameraMetadata,
+ android_hardware_camera2_CameraMetadata_getNativeMetadataPtr);
+ return reinterpret_cast<CameraMetadata *>(ret);
+}
+
+} // namespace
+#endif /* __ANDROID_VNDK__ */
+
EXPORT
camera_status_t ACameraMetadata_getConstEntry(
const ACameraMetadata* acm, uint32_t tag, ACameraMetadata_const_entry* entry) {
@@ -58,7 +120,7 @@
return nullptr;
}
ACameraMetadata* copy = new ACameraMetadata(*src);
- copy->incStrong((void*) ACameraMetadata_copy);
+ copy->incStrong(/*id=*/(void*) ACameraMetadata_copy);
return copy;
}
@@ -86,3 +148,34 @@
return staticMetadata->isLogicalMultiCamera(numPhysicalCameras, physicalCameraIds);
}
+
+#ifndef __ANDROID_VNDK__
+EXPORT
+ACameraMetadata* ACameraMetadata_fromCameraMetadata(JNIEnv* env, jobject cameraMetadata) {
+ ATRACE_CALL();
+
+ const bool ok = InitJni(env);
+ LOG_ALWAYS_FATAL_IF(!ok, "Failed to find CameraMetadata Java classes.");
+
+ if (cameraMetadata == nullptr) {
+ return nullptr;
+ }
+
+ ACameraMetadata::ACAMERA_METADATA_TYPE type;
+ if (env->IsInstanceOf(cameraMetadata,
+ android_hardware_camera2_CameraCharacteristics_clazz)) {
+ type = ACameraMetadata::ACM_CHARACTERISTICS;
+ } else if (env->IsInstanceOf(cameraMetadata,
+ android_hardware_camera2_CaptureResult_clazz)) {
+ type = ACameraMetadata::ACM_RESULT;
+ } else {
+ return nullptr;
+ }
+
+ CameraMetadata* src = CameraMetadata_getNativeMetadataPtr(env,
+ cameraMetadata);
+ ACameraMetadata* output = new ACameraMetadata(src, type);
+ output->incStrong(/*id=*/(void*) ACameraMetadata_fromCameraMetadata);
+ return output;
+}
+#endif /* __ANDROID_VNDK__ */
\ No newline at end of file