| /* |
| * Copyright (C) 2010 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| // #define LOG_NDEBUG 0 |
| |
| #define LOG_TAG "MtpDeviceJNI" |
| #include "utils/Log.h" |
| |
| #include <stdio.h> |
| #include <assert.h> |
| #include <limits.h> |
| #include <unistd.h> |
| #include <fcntl.h> |
| |
| #include "jni.h" |
| #include "JNIHelp.h" |
| #include "android_runtime/AndroidRuntime.h" |
| #include "android_runtime/Log.h" |
| #include "private/android_filesystem_config.h" |
| |
| #include "MtpTypes.h" |
| #include "MtpDevice.h" |
| #include "MtpDeviceInfo.h" |
| #include "MtpStorageInfo.h" |
| #include "MtpObjectInfo.h" |
| |
| using namespace android; |
| |
| // ---------------------------------------------------------------------------- |
| |
| static jfieldID field_context; |
| |
| jclass clazz_deviceInfo; |
| jclass clazz_storageInfo; |
| jclass clazz_objectInfo; |
| |
| jmethodID constructor_deviceInfo; |
| jmethodID constructor_storageInfo; |
| jmethodID constructor_objectInfo; |
| |
| // MtpDeviceInfo fields |
| static jfieldID field_deviceInfo_manufacturer; |
| static jfieldID field_deviceInfo_model; |
| static jfieldID field_deviceInfo_version; |
| static jfieldID field_deviceInfo_serialNumber; |
| |
| // MtpStorageInfo fields |
| static jfieldID field_storageInfo_storageId; |
| static jfieldID field_storageInfo_maxCapacity; |
| static jfieldID field_storageInfo_freeSpace; |
| static jfieldID field_storageInfo_description; |
| static jfieldID field_storageInfo_volumeIdentifier; |
| |
| // MtpObjectInfo fields |
| static jfieldID field_objectInfo_handle; |
| static jfieldID field_objectInfo_storageId; |
| static jfieldID field_objectInfo_format; |
| static jfieldID field_objectInfo_protectionStatus; |
| static jfieldID field_objectInfo_compressedSize; |
| static jfieldID field_objectInfo_thumbFormat; |
| static jfieldID field_objectInfo_thumbCompressedSize; |
| static jfieldID field_objectInfo_thumbPixWidth; |
| static jfieldID field_objectInfo_thumbPixHeight; |
| static jfieldID field_objectInfo_imagePixWidth; |
| static jfieldID field_objectInfo_imagePixHeight; |
| static jfieldID field_objectInfo_imagePixDepth; |
| static jfieldID field_objectInfo_parent; |
| static jfieldID field_objectInfo_associationType; |
| static jfieldID field_objectInfo_associationDesc; |
| static jfieldID field_objectInfo_sequenceNumber; |
| static jfieldID field_objectInfo_name; |
| static jfieldID field_objectInfo_dateCreated; |
| static jfieldID field_objectInfo_dateModified; |
| static jfieldID field_objectInfo_keywords; |
| |
| MtpDevice* get_device_from_object(JNIEnv* env, jobject javaDevice) |
| { |
| return (MtpDevice*)env->GetLongField(javaDevice, field_context); |
| } |
| |
| // ---------------------------------------------------------------------------- |
| |
| static jboolean |
| android_mtp_MtpDevice_open(JNIEnv *env, jobject thiz, jstring deviceName, jint fd) |
| { |
| const char *deviceNameStr = env->GetStringUTFChars(deviceName, NULL); |
| if (deviceNameStr == NULL) { |
| return JNI_FALSE; |
| } |
| |
| MtpDevice* device = MtpDevice::open(deviceNameStr, fd); |
| env->ReleaseStringUTFChars(deviceName, deviceNameStr); |
| |
| if (device) |
| env->SetLongField(thiz, field_context, (jlong)device); |
| return (jboolean)(device != NULL); |
| } |
| |
| static void |
| android_mtp_MtpDevice_close(JNIEnv *env, jobject thiz) |
| { |
| MtpDevice* device = get_device_from_object(env, thiz); |
| if (device) { |
| device->close(); |
| delete device; |
| env->SetLongField(thiz, field_context, 0); |
| } |
| } |
| |
| static jobject |
| android_mtp_MtpDevice_get_device_info(JNIEnv *env, jobject thiz) |
| { |
| MtpDevice* device = get_device_from_object(env, thiz); |
| if (!device) { |
| ALOGD("android_mtp_MtpDevice_get_device_info device is null"); |
| return NULL; |
| } |
| MtpDeviceInfo* deviceInfo = device->getDeviceInfo(); |
| if (!deviceInfo) { |
| ALOGD("android_mtp_MtpDevice_get_device_info deviceInfo is null"); |
| return NULL; |
| } |
| jobject info = env->NewObject(clazz_deviceInfo, constructor_deviceInfo); |
| if (info == NULL) { |
| ALOGE("Could not create a MtpDeviceInfo object"); |
| delete deviceInfo; |
| return NULL; |
| } |
| |
| if (deviceInfo->mManufacturer) |
| env->SetObjectField(info, field_deviceInfo_manufacturer, |
| env->NewStringUTF(deviceInfo->mManufacturer)); |
| if (deviceInfo->mModel) |
| env->SetObjectField(info, field_deviceInfo_model, |
| env->NewStringUTF(deviceInfo->mModel)); |
| if (deviceInfo->mVersion) |
| env->SetObjectField(info, field_deviceInfo_version, |
| env->NewStringUTF(deviceInfo->mVersion)); |
| if (deviceInfo->mSerial) |
| env->SetObjectField(info, field_deviceInfo_serialNumber, |
| env->NewStringUTF(deviceInfo->mSerial)); |
| |
| delete deviceInfo; |
| return info; |
| } |
| |
| static jintArray |
| android_mtp_MtpDevice_get_storage_ids(JNIEnv *env, jobject thiz) |
| { |
| MtpDevice* device = get_device_from_object(env, thiz); |
| if (!device) |
| return NULL; |
| MtpStorageIDList* storageIDs = device->getStorageIDs(); |
| if (!storageIDs) |
| return NULL; |
| |
| int length = storageIDs->size(); |
| jintArray array = env->NewIntArray(length); |
| // FIXME is this cast safe? |
| env->SetIntArrayRegion(array, 0, length, (const jint *)storageIDs->array()); |
| |
| delete storageIDs; |
| return array; |
| } |
| |
| static jobject |
| android_mtp_MtpDevice_get_storage_info(JNIEnv *env, jobject thiz, jint storageID) |
| { |
| MtpDevice* device = get_device_from_object(env, thiz); |
| if (!device) |
| return NULL; |
| MtpStorageInfo* storageInfo = device->getStorageInfo(storageID); |
| if (!storageInfo) |
| return NULL; |
| |
| jobject info = env->NewObject(clazz_storageInfo, constructor_storageInfo); |
| if (info == NULL) { |
| ALOGE("Could not create a MtpStorageInfo object"); |
| delete storageInfo; |
| return NULL; |
| } |
| |
| if (storageInfo->mStorageID) |
| env->SetIntField(info, field_storageInfo_storageId, storageInfo->mStorageID); |
| if (storageInfo->mMaxCapacity) |
| env->SetLongField(info, field_storageInfo_maxCapacity, storageInfo->mMaxCapacity); |
| if (storageInfo->mFreeSpaceBytes) |
| env->SetLongField(info, field_storageInfo_freeSpace, storageInfo->mFreeSpaceBytes); |
| if (storageInfo->mStorageDescription) |
| env->SetObjectField(info, field_storageInfo_description, |
| env->NewStringUTF(storageInfo->mStorageDescription)); |
| if (storageInfo->mVolumeIdentifier) |
| env->SetObjectField(info, field_storageInfo_volumeIdentifier, |
| env->NewStringUTF(storageInfo->mVolumeIdentifier)); |
| |
| delete storageInfo; |
| return info; |
| } |
| |
| static jintArray |
| android_mtp_MtpDevice_get_object_handles(JNIEnv *env, jobject thiz, |
| jint storageID, jint format, jint objectID) |
| { |
| MtpDevice* device = get_device_from_object(env, thiz); |
| if (!device) |
| return NULL; |
| MtpObjectHandleList* handles = device->getObjectHandles(storageID, format, objectID); |
| if (!handles) |
| return NULL; |
| |
| int length = handles->size(); |
| jintArray array = env->NewIntArray(length); |
| // FIXME is this cast safe? |
| env->SetIntArrayRegion(array, 0, length, (const jint *)handles->array()); |
| |
| delete handles; |
| return array; |
| } |
| |
| static jobject |
| android_mtp_MtpDevice_get_object_info(JNIEnv *env, jobject thiz, jint objectID) |
| { |
| MtpDevice* device = get_device_from_object(env, thiz); |
| if (!device) |
| return NULL; |
| MtpObjectInfo* objectInfo = device->getObjectInfo(objectID); |
| if (!objectInfo) |
| return NULL; |
| jobject info = env->NewObject(clazz_objectInfo, constructor_objectInfo); |
| if (info == NULL) { |
| ALOGE("Could not create a MtpObjectInfo object"); |
| delete objectInfo; |
| return NULL; |
| } |
| |
| if (objectInfo->mHandle) |
| env->SetIntField(info, field_objectInfo_handle, objectInfo->mHandle); |
| if (objectInfo->mStorageID) |
| env->SetIntField(info, field_objectInfo_storageId, objectInfo->mStorageID); |
| if (objectInfo->mFormat) |
| env->SetIntField(info, field_objectInfo_format, objectInfo->mFormat); |
| if (objectInfo->mProtectionStatus) |
| env->SetIntField(info, field_objectInfo_protectionStatus, objectInfo->mProtectionStatus); |
| if (objectInfo->mCompressedSize) |
| env->SetIntField(info, field_objectInfo_compressedSize, objectInfo->mCompressedSize); |
| if (objectInfo->mThumbFormat) |
| env->SetIntField(info, field_objectInfo_thumbFormat, objectInfo->mThumbFormat); |
| if (objectInfo->mThumbCompressedSize) |
| env->SetIntField(info, field_objectInfo_thumbCompressedSize, objectInfo->mThumbCompressedSize); |
| if (objectInfo->mThumbPixWidth) |
| env->SetIntField(info, field_objectInfo_thumbPixWidth, objectInfo->mThumbPixWidth); |
| if (objectInfo->mThumbPixHeight) |
| env->SetIntField(info, field_objectInfo_thumbPixHeight, objectInfo->mThumbPixHeight); |
| if (objectInfo->mImagePixWidth) |
| env->SetIntField(info, field_objectInfo_imagePixWidth, objectInfo->mImagePixWidth); |
| if (objectInfo->mImagePixHeight) |
| env->SetIntField(info, field_objectInfo_imagePixHeight, objectInfo->mImagePixHeight); |
| if (objectInfo->mImagePixDepth) |
| env->SetIntField(info, field_objectInfo_imagePixDepth, objectInfo->mImagePixDepth); |
| if (objectInfo->mParent) |
| env->SetIntField(info, field_objectInfo_parent, objectInfo->mParent); |
| if (objectInfo->mAssociationType) |
| env->SetIntField(info, field_objectInfo_associationType, objectInfo->mAssociationType); |
| if (objectInfo->mAssociationDesc) |
| env->SetIntField(info, field_objectInfo_associationDesc, objectInfo->mAssociationDesc); |
| if (objectInfo->mSequenceNumber) |
| env->SetIntField(info, field_objectInfo_sequenceNumber, objectInfo->mSequenceNumber); |
| if (objectInfo->mName) |
| env->SetObjectField(info, field_objectInfo_name, env->NewStringUTF(objectInfo->mName)); |
| if (objectInfo->mDateCreated) |
| env->SetLongField(info, field_objectInfo_dateCreated, objectInfo->mDateCreated * 1000LL); |
| if (objectInfo->mDateModified) |
| env->SetLongField(info, field_objectInfo_dateModified, objectInfo->mDateModified * 1000LL); |
| if (objectInfo->mKeywords) |
| env->SetObjectField(info, field_objectInfo_keywords, |
| env->NewStringUTF(objectInfo->mKeywords)); |
| |
| delete objectInfo; |
| return info; |
| } |
| |
| struct get_object_callback_data { |
| JNIEnv *env; |
| jbyteArray array; |
| }; |
| |
| static bool get_object_callback(void* data, int offset, int length, void* clientData) |
| { |
| get_object_callback_data* cbData = (get_object_callback_data *)clientData; |
| cbData->env->SetByteArrayRegion(cbData->array, offset, length, (jbyte *)data); |
| return true; |
| } |
| |
| static jbyteArray |
| android_mtp_MtpDevice_get_object(JNIEnv *env, jobject thiz, jint objectID, jint objectSize) |
| { |
| MtpDevice* device = get_device_from_object(env, thiz); |
| if (!device) |
| return NULL; |
| |
| jbyteArray array = env->NewByteArray(objectSize); |
| if (!array) { |
| jniThrowException(env, "java/lang/OutOfMemoryError", NULL); |
| return NULL; |
| } |
| |
| get_object_callback_data data; |
| data.env = env; |
| data.array = array; |
| |
| if (device->readObject(objectID, get_object_callback, objectSize, &data)) |
| return array; |
| return NULL; |
| } |
| |
| static jbyteArray |
| android_mtp_MtpDevice_get_thumbnail(JNIEnv *env, jobject thiz, jint objectID) |
| { |
| MtpDevice* device = get_device_from_object(env, thiz); |
| if (!device) |
| return NULL; |
| |
| int length; |
| void* thumbnail = device->getThumbnail(objectID, length); |
| if (! thumbnail) |
| return NULL; |
| jbyteArray array = env->NewByteArray(length); |
| env->SetByteArrayRegion(array, 0, length, (const jbyte *)thumbnail); |
| |
| free(thumbnail); |
| return array; |
| } |
| |
| static jboolean |
| android_mtp_MtpDevice_delete_object(JNIEnv *env, jobject thiz, jint object_id) |
| { |
| MtpDevice* device = get_device_from_object(env, thiz); |
| if (device && device->deleteObject(object_id)) { |
| return JNI_TRUE; |
| } else { |
| return JNI_FALSE; |
| } |
| } |
| |
| static jlong |
| android_mtp_MtpDevice_get_parent(JNIEnv *env, jobject thiz, jint object_id) |
| { |
| MtpDevice* device = get_device_from_object(env, thiz); |
| if (device) |
| return (jlong)device->getParent(object_id); |
| else |
| return -1; |
| } |
| |
| static jlong |
| android_mtp_MtpDevice_get_storage_id(JNIEnv *env, jobject thiz, jint object_id) |
| { |
| MtpDevice* device = get_device_from_object(env, thiz); |
| if (device) |
| return (jlong)device->getStorageID(object_id); |
| else |
| return -1; |
| } |
| |
| static jboolean |
| android_mtp_MtpDevice_import_file(JNIEnv *env, jobject thiz, jint object_id, jstring dest_path) |
| { |
| MtpDevice* device = get_device_from_object(env, thiz); |
| if (device) { |
| const char *destPathStr = env->GetStringUTFChars(dest_path, NULL); |
| if (destPathStr == NULL) { |
| return JNI_FALSE; |
| } |
| |
| jboolean result = device->readObject(object_id, destPathStr, AID_SDCARD_RW, 0664); |
| env->ReleaseStringUTFChars(dest_path, destPathStr); |
| return result; |
| } |
| |
| return JNI_FALSE; |
| } |
| |
| // ---------------------------------------------------------------------------- |
| |
| static JNINativeMethod gMethods[] = { |
| {"native_open", "(Ljava/lang/String;I)Z", |
| (void *)android_mtp_MtpDevice_open}, |
| {"native_close", "()V", (void *)android_mtp_MtpDevice_close}, |
| {"native_get_device_info", "()Landroid/mtp/MtpDeviceInfo;", |
| (void *)android_mtp_MtpDevice_get_device_info}, |
| {"native_get_storage_ids", "()[I", (void *)android_mtp_MtpDevice_get_storage_ids}, |
| {"native_get_storage_info", "(I)Landroid/mtp/MtpStorageInfo;", |
| (void *)android_mtp_MtpDevice_get_storage_info}, |
| {"native_get_object_handles","(III)[I", |
| (void *)android_mtp_MtpDevice_get_object_handles}, |
| {"native_get_object_info", "(I)Landroid/mtp/MtpObjectInfo;", |
| (void *)android_mtp_MtpDevice_get_object_info}, |
| {"native_get_object", "(II)[B",(void *)android_mtp_MtpDevice_get_object}, |
| {"native_get_thumbnail", "(I)[B",(void *)android_mtp_MtpDevice_get_thumbnail}, |
| {"native_delete_object", "(I)Z", (void *)android_mtp_MtpDevice_delete_object}, |
| {"native_get_parent", "(I)J", (void *)android_mtp_MtpDevice_get_parent}, |
| {"native_get_storage_id", "(I)J", (void *)android_mtp_MtpDevice_get_storage_id}, |
| {"native_import_file", "(ILjava/lang/String;)Z", |
| (void *)android_mtp_MtpDevice_import_file}, |
| }; |
| |
| int register_android_mtp_MtpDevice(JNIEnv *env) |
| { |
| jclass clazz; |
| |
| ALOGD("register_android_mtp_MtpDevice\n"); |
| |
| clazz = env->FindClass("android/mtp/MtpDeviceInfo"); |
| if (clazz == NULL) { |
| ALOGE("Can't find android/mtp/MtpDeviceInfo"); |
| return -1; |
| } |
| constructor_deviceInfo = env->GetMethodID(clazz, "<init>", "()V"); |
| if (constructor_deviceInfo == NULL) { |
| ALOGE("Can't find android/mtp/MtpDeviceInfo constructor"); |
| return -1; |
| } |
| field_deviceInfo_manufacturer = env->GetFieldID(clazz, "mManufacturer", "Ljava/lang/String;"); |
| if (field_deviceInfo_manufacturer == NULL) { |
| ALOGE("Can't find MtpDeviceInfo.mManufacturer"); |
| return -1; |
| } |
| field_deviceInfo_model = env->GetFieldID(clazz, "mModel", "Ljava/lang/String;"); |
| if (field_deviceInfo_model == NULL) { |
| ALOGE("Can't find MtpDeviceInfo.mModel"); |
| return -1; |
| } |
| field_deviceInfo_version = env->GetFieldID(clazz, "mVersion", "Ljava/lang/String;"); |
| if (field_deviceInfo_version == NULL) { |
| ALOGE("Can't find MtpDeviceInfo.mVersion"); |
| return -1; |
| } |
| field_deviceInfo_serialNumber = env->GetFieldID(clazz, "mSerialNumber", "Ljava/lang/String;"); |
| if (field_deviceInfo_serialNumber == NULL) { |
| ALOGE("Can't find MtpDeviceInfo.mSerialNumber"); |
| return -1; |
| } |
| clazz_deviceInfo = (jclass)env->NewGlobalRef(clazz); |
| |
| clazz = env->FindClass("android/mtp/MtpStorageInfo"); |
| if (clazz == NULL) { |
| ALOGE("Can't find android/mtp/MtpStorageInfo"); |
| return -1; |
| } |
| constructor_storageInfo = env->GetMethodID(clazz, "<init>", "()V"); |
| if (constructor_storageInfo == NULL) { |
| ALOGE("Can't find android/mtp/MtpStorageInfo constructor"); |
| return -1; |
| } |
| field_storageInfo_storageId = env->GetFieldID(clazz, "mStorageId", "I"); |
| if (field_storageInfo_storageId == NULL) { |
| ALOGE("Can't find MtpStorageInfo.mStorageId"); |
| return -1; |
| } |
| field_storageInfo_maxCapacity = env->GetFieldID(clazz, "mMaxCapacity", "J"); |
| if (field_storageInfo_maxCapacity == NULL) { |
| ALOGE("Can't find MtpStorageInfo.mMaxCapacity"); |
| return -1; |
| } |
| field_storageInfo_freeSpace = env->GetFieldID(clazz, "mFreeSpace", "J"); |
| if (field_storageInfo_freeSpace == NULL) { |
| ALOGE("Can't find MtpStorageInfo.mFreeSpace"); |
| return -1; |
| } |
| field_storageInfo_description = env->GetFieldID(clazz, "mDescription", "Ljava/lang/String;"); |
| if (field_storageInfo_description == NULL) { |
| ALOGE("Can't find MtpStorageInfo.mDescription"); |
| return -1; |
| } |
| field_storageInfo_volumeIdentifier = env->GetFieldID(clazz, "mVolumeIdentifier", "Ljava/lang/String;"); |
| if (field_storageInfo_volumeIdentifier == NULL) { |
| ALOGE("Can't find MtpStorageInfo.mVolumeIdentifier"); |
| return -1; |
| } |
| clazz_storageInfo = (jclass)env->NewGlobalRef(clazz); |
| |
| clazz = env->FindClass("android/mtp/MtpObjectInfo"); |
| if (clazz == NULL) { |
| ALOGE("Can't find android/mtp/MtpObjectInfo"); |
| return -1; |
| } |
| constructor_objectInfo = env->GetMethodID(clazz, "<init>", "()V"); |
| if (constructor_objectInfo == NULL) { |
| ALOGE("Can't find android/mtp/MtpObjectInfo constructor"); |
| return -1; |
| } |
| field_objectInfo_handle = env->GetFieldID(clazz, "mHandle", "I"); |
| if (field_objectInfo_handle == NULL) { |
| ALOGE("Can't find MtpObjectInfo.mHandle"); |
| return -1; |
| } |
| field_objectInfo_storageId = env->GetFieldID(clazz, "mStorageId", "I"); |
| if (field_objectInfo_storageId == NULL) { |
| ALOGE("Can't find MtpObjectInfo.mStorageId"); |
| return -1; |
| } |
| field_objectInfo_format = env->GetFieldID(clazz, "mFormat", "I"); |
| if (field_objectInfo_format == NULL) { |
| ALOGE("Can't find MtpObjectInfo.mFormat"); |
| return -1; |
| } |
| field_objectInfo_protectionStatus = env->GetFieldID(clazz, "mProtectionStatus", "I"); |
| if (field_objectInfo_protectionStatus == NULL) { |
| ALOGE("Can't find MtpObjectInfo.mProtectionStatus"); |
| return -1; |
| } |
| field_objectInfo_compressedSize = env->GetFieldID(clazz, "mCompressedSize", "I"); |
| if (field_objectInfo_compressedSize == NULL) { |
| ALOGE("Can't find MtpObjectInfo.mCompressedSize"); |
| return -1; |
| } |
| field_objectInfo_thumbFormat = env->GetFieldID(clazz, "mThumbFormat", "I"); |
| if (field_objectInfo_thumbFormat == NULL) { |
| ALOGE("Can't find MtpObjectInfo.mThumbFormat"); |
| return -1; |
| } |
| field_objectInfo_thumbCompressedSize = env->GetFieldID(clazz, "mThumbCompressedSize", "I"); |
| if (field_objectInfo_thumbCompressedSize == NULL) { |
| ALOGE("Can't find MtpObjectInfo.mThumbCompressedSize"); |
| return -1; |
| } |
| field_objectInfo_thumbPixWidth = env->GetFieldID(clazz, "mThumbPixWidth", "I"); |
| if (field_objectInfo_thumbPixWidth == NULL) { |
| ALOGE("Can't find MtpObjectInfo.mThumbPixWidth"); |
| return -1; |
| } |
| field_objectInfo_thumbPixHeight = env->GetFieldID(clazz, "mThumbPixHeight", "I"); |
| if (field_objectInfo_thumbPixHeight == NULL) { |
| ALOGE("Can't find MtpObjectInfo.mThumbPixHeight"); |
| return -1; |
| } |
| field_objectInfo_imagePixWidth = env->GetFieldID(clazz, "mImagePixWidth", "I"); |
| if (field_objectInfo_imagePixWidth == NULL) { |
| ALOGE("Can't find MtpObjectInfo.mImagePixWidth"); |
| return -1; |
| } |
| field_objectInfo_imagePixHeight = env->GetFieldID(clazz, "mImagePixHeight", "I"); |
| if (field_objectInfo_imagePixHeight == NULL) { |
| ALOGE("Can't find MtpObjectInfo.mImagePixHeight"); |
| return -1; |
| } |
| field_objectInfo_imagePixDepth = env->GetFieldID(clazz, "mImagePixDepth", "I"); |
| if (field_objectInfo_imagePixDepth == NULL) { |
| ALOGE("Can't find MtpObjectInfo.mImagePixDepth"); |
| return -1; |
| } |
| field_objectInfo_parent = env->GetFieldID(clazz, "mParent", "I"); |
| if (field_objectInfo_parent == NULL) { |
| ALOGE("Can't find MtpObjectInfo.mParent"); |
| return -1; |
| } |
| field_objectInfo_associationType = env->GetFieldID(clazz, "mAssociationType", "I"); |
| if (field_objectInfo_associationType == NULL) { |
| ALOGE("Can't find MtpObjectInfo.mAssociationType"); |
| return -1; |
| } |
| field_objectInfo_associationDesc = env->GetFieldID(clazz, "mAssociationDesc", "I"); |
| if (field_objectInfo_associationDesc == NULL) { |
| ALOGE("Can't find MtpObjectInfo.mAssociationDesc"); |
| return -1; |
| } |
| field_objectInfo_sequenceNumber = env->GetFieldID(clazz, "mSequenceNumber", "I"); |
| if (field_objectInfo_sequenceNumber == NULL) { |
| ALOGE("Can't find MtpObjectInfo.mSequenceNumber"); |
| return -1; |
| } |
| field_objectInfo_name = env->GetFieldID(clazz, "mName", "Ljava/lang/String;"); |
| if (field_objectInfo_name == NULL) { |
| ALOGE("Can't find MtpObjectInfo.mName"); |
| return -1; |
| } |
| field_objectInfo_dateCreated = env->GetFieldID(clazz, "mDateCreated", "J"); |
| if (field_objectInfo_dateCreated == NULL) { |
| ALOGE("Can't find MtpObjectInfo.mDateCreated"); |
| return -1; |
| } |
| field_objectInfo_dateModified = env->GetFieldID(clazz, "mDateModified", "J"); |
| if (field_objectInfo_dateModified == NULL) { |
| ALOGE("Can't find MtpObjectInfo.mDateModified"); |
| return -1; |
| } |
| field_objectInfo_keywords = env->GetFieldID(clazz, "mKeywords", "Ljava/lang/String;"); |
| if (field_objectInfo_keywords == NULL) { |
| ALOGE("Can't find MtpObjectInfo.mKeywords"); |
| return -1; |
| } |
| clazz_objectInfo = (jclass)env->NewGlobalRef(clazz); |
| |
| clazz = env->FindClass("android/mtp/MtpDevice"); |
| if (clazz == NULL) { |
| ALOGE("Can't find android/mtp/MtpDevice"); |
| return -1; |
| } |
| field_context = env->GetFieldID(clazz, "mNativeContext", "J"); |
| if (field_context == NULL) { |
| ALOGE("Can't find MtpDevice.mNativeContext"); |
| return -1; |
| } |
| |
| return AndroidRuntime::registerNativeMethods(env, |
| "android/mtp/MtpDevice", gMethods, NELEM(gMethods)); |
| } |
