status_t BnCameraDeviceCallbacks::onTransact(
uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
{
ALOGV("onTransact - code = %d", code);
switch(code) {
case CAMERA_ERROR: {
ALOGV("onDeviceError");
CHECK_INTERFACE(ICameraDeviceCallbacks, data, reply);
CameraErrorCode errorCode =
static_cast<CameraErrorCode>(data.readInt32());
onDeviceError(errorCode);
data.readExceptionCode();
return NO_ERROR;
} break;
case CAMERA_IDLE: {
ALOGV("onDeviceIdle");
CHECK_INTERFACE(ICameraDeviceCallbacks, data, reply);
onDeviceIdle();
data.readExceptionCode();
return NO_ERROR;
} break;
case CAPTURE_STARTED: {
ALOGV("onCaptureStarted");
CHECK_INTERFACE(ICameraDeviceCallbacks, data, reply);
int32_t requestId = data.readInt32();
int64_t timestamp = data.readInt64();
onCaptureStarted(requestId, timestamp);
data.readExceptionCode();
return NO_ERROR;
} break;
case RESULT_RECEIVED: {
ALOGV("onResultReceived");
CHECK_INTERFACE(ICameraDeviceCallbacks, data, reply);
int32_t requestId = data.readInt32();
CameraMetadata result;
if (data.readInt32() != 0) {
result.readFromParcel(const_cast<Parcel*>(&data));
} else {
ALOGW("No metadata object is present in result");
}
onResultReceived(requestId, result);
data.readExceptionCode();
return NO_ERROR;
} break;
default:
return BBinder::onTransact(code, data, reply, flags);
}
}
static void CameraMetadata_readFromParcel(JNIEnv *env, jobject thiz, jobject parcel) {
ALOGV("%s", __FUNCTION__);
CameraMetadata* metadata = CameraMetadata_getPointerThrow(env, thiz);
if (metadata == NULL) {
return;
}
Parcel* parcelNative = parcelForJavaObject(env, parcel);
if (parcelNative == NULL) {
jniThrowNullPointerException(env, "parcel");
return;
}
status_t err;
if ((err = metadata->readFromParcel(parcelNative)) != OK) {
jniThrowExceptionFmt(env, "java/lang/IllegalStateException",
"Failed to read from parcel (error code %d)", err);
return;
}
}
virtual status_t getCameraInfo(CameraMetadata* info)
{
Parcel data, reply;
data.writeInterfaceToken(ICameraDeviceUser::getInterfaceDescriptor());
remote()->transact(GET_CAMERA_INFO, data, &reply);
reply.readExceptionCode();
status_t result = reply.readInt32();
CameraMetadata out;
if (reply.readInt32() != 0) {
out.readFromParcel(&reply);
}
if (info != NULL) {
info->swap(out);
}
return result;
}
// get camera characteristics (static metadata)
virtual status_t getCameraCharacteristics(int cameraId,
CameraMetadata* cameraInfo) {
Parcel data, reply;
data.writeInterfaceToken(ICameraService::getInterfaceDescriptor());
data.writeInt32(cameraId);
remote()->transact(BnCameraService::GET_CAMERA_CHARACTERISTICS, data, &reply);
if (readExceptionCode(reply)) return -EPROTO;
status_t result = reply.readInt32();
CameraMetadata out;
if (reply.readInt32() != 0) {
out.readFromParcel(&reply);
}
if (cameraInfo != NULL) {
cameraInfo->swap(out);
}
return result;
}
// Create a request object from a template.
virtual status_t createDefaultRequest(int templateId,
/*out*/
CameraMetadata* request)
{
Parcel data, reply;
data.writeInterfaceToken(ICameraDeviceUser::getInterfaceDescriptor());
data.writeInt32(templateId);
remote()->transact(CREATE_DEFAULT_REQUEST, data, &reply);
reply.readExceptionCode();
status_t result = reply.readInt32();
CameraMetadata out;
if (reply.readInt32() != 0) {
out.readFromParcel(&reply);
}
if (request != NULL) {
request->swap(out);
}
return result;
}