| /* |
| ** |
| ** Copyright 2013, 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 "CameraMetadata-JNI" |
| #include <utils/Errors.h> |
| #include <utils/Log.h> |
| #include <utils/RefBase.h> |
| #include <utils/Vector.h> |
| #include <utils/SortedVector.h> |
| #include <utils/KeyedVector.h> |
| #include <stdio.h> |
| #include <string.h> |
| #include <vector> |
| |
| #include "jni.h" |
| #include <nativehelper/JNIHelp.h> |
| #include "android_os_Parcel.h" |
| #include "core_jni_helpers.h" |
| #include "android_runtime/android_hardware_camera2_CameraMetadata.h" |
| |
| #include <android/hardware/ICameraService.h> |
| #include <binder/IServiceManager.h> |
| #include <camera/CameraMetadata.h> |
| #include <camera_metadata_hidden.h> |
| #include <camera/VendorTagDescriptor.h> |
| #include <nativehelper/ScopedUtfChars.h> |
| #include <nativehelper/ScopedPrimitiveArray.h> |
| |
| #include <sys/types.h> // for socketpair |
| #include <sys/socket.h> // for socketpair |
| |
| // fully-qualified class name |
| #define CAMERA_METADATA_CLASS_NAME "android/hardware/camera2/impl/CameraMetadataNative" |
| #define CHARACTERISTICS_KEY_CLASS_NAME "android/hardware/camera2/CameraCharacteristics$Key" |
| #define REQUEST_KEY_CLASS_NAME "android/hardware/camera2/CaptureRequest$Key" |
| #define RESULT_KEY_CLASS_NAME "android/hardware/camera2/CaptureResult$Key" |
| |
| using namespace android; |
| |
| static struct metadata_java_key_offsets_t { |
| jclass mCharacteristicsKey; |
| jclass mResultKey; |
| jclass mRequestKey; |
| jmethodID mCharacteristicsConstr; |
| jmethodID mResultConstr; |
| jmethodID mRequestConstr; |
| jclass mByteArray; |
| jclass mInt32Array; |
| jclass mFloatArray; |
| jclass mInt64Array; |
| jclass mDoubleArray; |
| jclass mRationalArray; |
| jclass mArrayList; |
| jmethodID mArrayListConstr; |
| jmethodID mArrayListAdd; |
| } gMetadataOffsets; |
| |
| struct fields_t { |
| jfieldID metadata_ptr; |
| }; |
| |
| static fields_t fields; |
| |
| namespace android { |
| |
| status_t CameraMetadata_getNativeMetadata(JNIEnv* env, jobject thiz, |
| /*out*/CameraMetadata* metadata) { |
| if (!thiz) { |
| ALOGE("%s: Invalid java metadata object.", __FUNCTION__); |
| return BAD_VALUE; |
| } |
| |
| if (!metadata) { |
| ALOGE("%s: Invalid output metadata object.", __FUNCTION__); |
| return BAD_VALUE; |
| } |
| CameraMetadata* nativePtr = reinterpret_cast<CameraMetadata*>(env->GetLongField(thiz, |
| fields.metadata_ptr)); |
| if (nativePtr == NULL) { |
| ALOGE("%s: Invalid native pointer in java metadata object.", __FUNCTION__); |
| return BAD_VALUE; |
| } |
| *metadata = *nativePtr; |
| return OK; |
| } |
| |
| } /*namespace android*/ |
| |
| namespace { |
| struct Helpers { |
| static size_t getTypeSize(uint8_t type) { |
| if (type >= NUM_TYPES) { |
| ALOGE("%s: Invalid type specified (%ud)", __FUNCTION__, type); |
| return static_cast<size_t>(-1); |
| } |
| |
| return camera_metadata_type_size[type]; |
| } |
| |
| static status_t updateAny(CameraMetadata *metadata, |
| uint32_t tag, |
| uint32_t type, |
| const void *data, |
| size_t dataBytes) { |
| |
| if (type >= NUM_TYPES) { |
| ALOGE("%s: Invalid type specified (%ud)", __FUNCTION__, type); |
| return INVALID_OPERATION; |
| } |
| |
| size_t typeSize = getTypeSize(type); |
| |
| if (dataBytes % typeSize != 0) { |
| ALOGE("%s: Expected dataBytes (%zu) to be divisible by typeSize " |
| "(%zu)", __FUNCTION__, dataBytes, typeSize); |
| return BAD_VALUE; |
| } |
| |
| size_t dataCount = dataBytes / typeSize; |
| |
| switch(type) { |
| #define METADATA_UPDATE(runtime_type, compile_type) \ |
| case runtime_type: { \ |
| const compile_type *dataPtr = \ |
| static_cast<const compile_type*>(data); \ |
| return metadata->update(tag, dataPtr, dataCount); \ |
| } \ |
| |
| METADATA_UPDATE(TYPE_BYTE, uint8_t); |
| METADATA_UPDATE(TYPE_INT32, int32_t); |
| METADATA_UPDATE(TYPE_FLOAT, float); |
| METADATA_UPDATE(TYPE_INT64, int64_t); |
| METADATA_UPDATE(TYPE_DOUBLE, double); |
| METADATA_UPDATE(TYPE_RATIONAL, camera_metadata_rational_t); |
| |
| default: { |
| // unreachable |
| ALOGE("%s: Unreachable", __FUNCTION__); |
| return INVALID_OPERATION; |
| } |
| } |
| |
| #undef METADATA_UPDATE |
| } |
| }; |
| } // namespace {} |
| |
| extern "C" { |
| |
| static jobject CameraMetadata_getAllVendorKeys(JNIEnv* env, jobject thiz, jclass keyType); |
| static jint CameraMetadata_getTagFromKey(JNIEnv *env, jobject thiz, jstring keyName, jlong vendorId); |
| static jint CameraMetadata_getTagFromKeyLocal(JNIEnv *env, jobject thiz, jstring keyName); |
| static jint CameraMetadata_getTypeFromTag(JNIEnv *env, jobject thiz, jint tag, jlong vendorId); |
| static jint CameraMetadata_getTypeFromTagLocal(JNIEnv *env, jobject thiz, jint tag); |
| static jint CameraMetadata_setupGlobalVendorTagDescriptor(JNIEnv *env, jobject thiz); |
| |
| // Less safe access to native pointer. Does NOT throw any Java exceptions if NULL. |
| static CameraMetadata* CameraMetadata_getPointerNoThrow(JNIEnv *env, jobject thiz) { |
| |
| if (thiz == NULL) { |
| return NULL; |
| } |
| |
| return reinterpret_cast<CameraMetadata*>(env->GetLongField(thiz, fields.metadata_ptr)); |
| } |
| |
| // Safe access to native pointer from object. Throws if not possible to access. |
| static CameraMetadata* CameraMetadata_getPointerThrow(JNIEnv *env, jobject thiz, |
| const char* argName = "this") { |
| |
| if (thiz == NULL) { |
| ALOGV("%s: Throwing java.lang.NullPointerException for null reference", |
| __FUNCTION__); |
| jniThrowNullPointerException(env, argName); |
| return NULL; |
| } |
| |
| CameraMetadata* metadata = CameraMetadata_getPointerNoThrow(env, thiz); |
| if (metadata == NULL) { |
| ALOGV("%s: Throwing java.lang.IllegalStateException for closed object", |
| __FUNCTION__); |
| jniThrowException(env, "java/lang/IllegalStateException", |
| "Metadata object was already closed"); |
| return NULL; |
| } |
| |
| return metadata; |
| } |
| |
| static jlong CameraMetadata_allocate(JNIEnv *env, jobject thiz) { |
| ALOGV("%s", __FUNCTION__); |
| |
| return reinterpret_cast<jlong>(new CameraMetadata()); |
| } |
| |
| static jlong CameraMetadata_allocateCopy(JNIEnv *env, jobject thiz, |
| jobject other) { |
| ALOGV("%s", __FUNCTION__); |
| |
| CameraMetadata* otherMetadata = |
| CameraMetadata_getPointerThrow(env, other, "other"); |
| |
| // In case of exception, return |
| if (otherMetadata == NULL) return NULL; |
| |
| // Clone native metadata and return new pointer |
| return reinterpret_cast<jlong>(new CameraMetadata(*otherMetadata)); |
| } |
| |
| |
| static jboolean CameraMetadata_isEmpty(JNIEnv *env, jobject thiz) { |
| ALOGV("%s", __FUNCTION__); |
| |
| CameraMetadata* metadata = CameraMetadata_getPointerThrow(env, thiz); |
| |
| if (metadata == NULL) { |
| ALOGW("%s: Returning early due to exception being thrown", |
| __FUNCTION__); |
| return JNI_TRUE; // actually throws java exc. |
| } |
| |
| jboolean empty = metadata->isEmpty(); |
| |
| ALOGV("%s: Empty returned %d, entry count was %zu", |
| __FUNCTION__, empty, metadata->entryCount()); |
| |
| return empty; |
| } |
| |
| static jint CameraMetadata_getEntryCount(JNIEnv *env, jobject thiz) { |
| ALOGV("%s", __FUNCTION__); |
| |
| CameraMetadata* metadata = CameraMetadata_getPointerThrow(env, thiz); |
| |
| if (metadata == NULL) return 0; // actually throws java exc. |
| |
| return metadata->entryCount(); |
| } |
| |
| // idempotent. calling more than once has no effect. |
| static void CameraMetadata_close(JNIEnv *env, jobject thiz) { |
| ALOGV("%s", __FUNCTION__); |
| |
| CameraMetadata* metadata = CameraMetadata_getPointerNoThrow(env, thiz); |
| |
| if (metadata != NULL) { |
| delete metadata; |
| env->SetLongField(thiz, fields.metadata_ptr, 0); |
| } |
| |
| LOG_ALWAYS_FATAL_IF(CameraMetadata_getPointerNoThrow(env, thiz) != NULL, |
| "Expected the native ptr to be 0 after #close"); |
| } |
| |
| static void CameraMetadata_swap(JNIEnv *env, jobject thiz, jobject other) { |
| ALOGV("%s", __FUNCTION__); |
| |
| CameraMetadata* metadata = CameraMetadata_getPointerThrow(env, thiz); |
| |
| // order is important: we can't call another JNI method |
| // if there is an exception pending |
| if (metadata == NULL) return; |
| |
| CameraMetadata* otherMetadata = CameraMetadata_getPointerThrow(env, other, "other"); |
| |
| if (otherMetadata == NULL) return; |
| |
| metadata->swap(*otherMetadata); |
| } |
| |
| static jbyteArray CameraMetadata_readValues(JNIEnv *env, jobject thiz, jint tag) { |
| ALOGV("%s (tag = %d)", __FUNCTION__, tag); |
| |
| CameraMetadata* metadata = CameraMetadata_getPointerThrow(env, thiz); |
| if (metadata == NULL) return NULL; |
| |
| const camera_metadata_t *metaBuffer = metadata->getAndLock(); |
| int tagType = get_local_camera_metadata_tag_type(tag, metaBuffer); |
| metadata->unlock(metaBuffer); |
| if (tagType == -1) { |
| jniThrowExceptionFmt(env, "java/lang/IllegalArgumentException", |
| "Tag (%d) did not have a type", tag); |
| return NULL; |
| } |
| size_t tagSize = Helpers::getTypeSize(tagType); |
| |
| camera_metadata_entry entry = metadata->find(tag); |
| if (entry.count == 0) { |
| if (!metadata->exists(tag)) { |
| ALOGV("%s: Tag %d does not have any entries", __FUNCTION__, tag); |
| return NULL; |
| } else { |
| // OK: we will return a 0-sized array. |
| ALOGV("%s: Tag %d had an entry, but it had 0 data", __FUNCTION__, |
| tag); |
| } |
| } |
| |
| jsize byteCount = entry.count * tagSize; |
| jbyteArray byteArray = env->NewByteArray(byteCount); |
| if (env->ExceptionCheck()) return NULL; |
| |
| // Copy into java array from native array |
| ScopedByteArrayRW arrayWriter(env, byteArray); |
| memcpy(arrayWriter.get(), entry.data.u8, byteCount); |
| |
| return byteArray; |
| } |
| |
| static void CameraMetadata_writeValues(JNIEnv *env, jobject thiz, jint tag, jbyteArray src) { |
| ALOGV("%s (tag = %d)", __FUNCTION__, tag); |
| |
| CameraMetadata* metadata = CameraMetadata_getPointerThrow(env, thiz); |
| if (metadata == NULL) return; |
| |
| const camera_metadata_t *metaBuffer = metadata->getAndLock(); |
| int tagType = get_local_camera_metadata_tag_type(tag, metaBuffer); |
| metadata->unlock(metaBuffer); |
| if (tagType == -1) { |
| jniThrowExceptionFmt(env, "java/lang/IllegalArgumentException", |
| "Tag (%d) did not have a type", tag); |
| return; |
| } |
| |
| status_t res; |
| |
| if (src == NULL) { |
| // If array is NULL, delete the entry |
| if (metadata->exists(tag)) { |
| res = metadata->erase(tag); |
| ALOGV("%s: Erase values (res = %d)", __FUNCTION__, res); |
| } else { |
| res = OK; |
| ALOGV("%s: Don't need to erase", __FUNCTION__); |
| } |
| } else { |
| // Copy from java array into native array |
| ScopedByteArrayRO arrayReader(env, src); |
| if (arrayReader.get() == NULL) return; |
| |
| res = Helpers::updateAny(metadata, static_cast<uint32_t>(tag), |
| tagType, arrayReader.get(), arrayReader.size()); |
| |
| ALOGV("%s: Update values (res = %d)", __FUNCTION__, res); |
| } |
| |
| if (res == OK) { |
| return; |
| } else if (res == BAD_VALUE) { |
| jniThrowExceptionFmt(env, "java/lang/IllegalArgumentException", |
| "Src byte array was poorly formed"); |
| } else if (res == INVALID_OPERATION) { |
| jniThrowExceptionFmt(env, "java/lang/IllegalStateException", |
| "Internal error while trying to update metadata"); |
| } else { |
| jniThrowExceptionFmt(env, "java/lang/IllegalStateException", |
| "Unknown error (%d) while trying to update " |
| "metadata", res); |
| } |
| } |
| |
| struct DumpMetadataParams { |
| int writeFd; |
| const CameraMetadata* metadata; |
| }; |
| |
| static void* CameraMetadata_writeMetadataThread(void* arg) { |
| DumpMetadataParams* p = static_cast<DumpMetadataParams*>(arg); |
| |
| /* |
| * Write the dumped data, and close the writing side FD. |
| */ |
| p->metadata->dump(p->writeFd, /*verbosity*/2); |
| |
| if (close(p->writeFd) < 0) { |
| ALOGE("%s: Failed to close writeFd (errno = %#x, message = '%s')", |
| __FUNCTION__, errno, strerror(errno)); |
| } |
| |
| return NULL; |
| } |
| |
| static void CameraMetadata_dump(JNIEnv *env, jobject thiz) { |
| ALOGV("%s", __FUNCTION__); |
| CameraMetadata* metadata = CameraMetadata_getPointerThrow(env, thiz); |
| if (metadata == NULL) { |
| return; |
| } |
| |
| /* |
| * Create a socket pair for local streaming read/writes. |
| * |
| * The metadata will be dumped into the write side, |
| * and then read back out (and logged) via the read side. |
| */ |
| |
| int writeFd, readFd; |
| { |
| |
| int sv[2]; |
| if (socketpair(AF_LOCAL, SOCK_STREAM, /*protocol*/0, &sv[0]) < 0) { |
| jniThrowExceptionFmt(env, "java/io/IOException", |
| "Failed to create socketpair (errno = %#x, message = '%s')", |
| errno, strerror(errno)); |
| return; |
| } |
| writeFd = sv[0]; |
| readFd = sv[1]; |
| } |
| |
| /* |
| * Create a thread for doing the writing. |
| * |
| * The reading and writing must be concurrent, otherwise |
| * the write will block forever once it exhausts the capped |
| * buffer size (from getsockopt). |
| */ |
| pthread_t writeThread; |
| DumpMetadataParams params = { |
| writeFd, |
| metadata |
| }; |
| |
| { |
| int threadRet = pthread_create(&writeThread, /*attr*/NULL, |
| CameraMetadata_writeMetadataThread, (void*)¶ms); |
| |
| if (threadRet != 0) { |
| close(writeFd); |
| |
| jniThrowExceptionFmt(env, "java/io/IOException", |
| "Failed to create thread for writing (errno = %#x, message = '%s')", |
| threadRet, strerror(threadRet)); |
| } |
| } |
| |
| /* |
| * Read out a byte until stream is complete. Write completed lines |
| * to ALOG. |
| */ |
| { |
| char out[] = {'\0', '\0'}; // large enough to append as a string |
| String8 logLine; |
| |
| // Read one byte at a time! Very slow but avoids complicated \n scanning. |
| ssize_t res; |
| while ((res = TEMP_FAILURE_RETRY(read(readFd, &out[0], /*count*/1))) > 0) { |
| if (out[0] == '\n') { |
| ALOGD("%s", logLine.string()); |
| logLine.clear(); |
| } else { |
| logLine.append(out); |
| } |
| } |
| |
| if (res < 0) { |
| jniThrowExceptionFmt(env, "java/io/IOException", |
| "Failed to read from fd (errno = %#x, message = '%s')", |
| errno, strerror(errno)); |
| //return; |
| } else if (!logLine.isEmpty()) { |
| ALOGD("%s", logLine.string()); |
| } |
| } |
| |
| int res; |
| |
| // Join until thread finishes. Ensures params/metadata is valid until then. |
| if ((res = pthread_join(writeThread, /*retval*/NULL)) != 0) { |
| ALOGE("%s: Failed to join thread (errno = %#x, message = '%s')", |
| __FUNCTION__, res, strerror(res)); |
| } |
| } |
| |
| 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; |
| } |
| } |
| |
| static void CameraMetadata_writeToParcel(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->writeToParcel(parcelNative)) != OK) { |
| jniThrowExceptionFmt(env, "java/lang/IllegalStateException", |
| "Failed to write to parcel (error code %d)", err); |
| return; |
| } |
| } |
| |
| } // extern "C" |
| |
| //------------------------------------------------- |
| |
| static const JNINativeMethod gCameraMetadataMethods[] = { |
| // static methods |
| { "nativeGetTagFromKey", |
| "(Ljava/lang/String;J)I", |
| (void *)CameraMetadata_getTagFromKey }, |
| { "nativeGetTypeFromTag", |
| "(IJ)I", |
| (void *)CameraMetadata_getTypeFromTag }, |
| { "nativeSetupGlobalVendorTagDescriptor", |
| "()I", |
| (void*)CameraMetadata_setupGlobalVendorTagDescriptor }, |
| // instance methods |
| { "nativeAllocate", |
| "()J", |
| (void*)CameraMetadata_allocate }, |
| { "nativeAllocateCopy", |
| "(L" CAMERA_METADATA_CLASS_NAME ";)J", |
| (void *)CameraMetadata_allocateCopy }, |
| { "nativeIsEmpty", |
| "()Z", |
| (void*)CameraMetadata_isEmpty }, |
| { "nativeGetEntryCount", |
| "()I", |
| (void*)CameraMetadata_getEntryCount }, |
| { "nativeClose", |
| "()V", |
| (void*)CameraMetadata_close }, |
| { "nativeSwap", |
| "(L" CAMERA_METADATA_CLASS_NAME ";)V", |
| (void *)CameraMetadata_swap }, |
| { "nativeGetTagFromKeyLocal", |
| "(Ljava/lang/String;)I", |
| (void *)CameraMetadata_getTagFromKeyLocal }, |
| { "nativeGetTypeFromTagLocal", |
| "(I)I", |
| (void *)CameraMetadata_getTypeFromTagLocal }, |
| { "nativeReadValues", |
| "(I)[B", |
| (void *)CameraMetadata_readValues }, |
| { "nativeWriteValues", |
| "(I[B)V", |
| (void *)CameraMetadata_writeValues }, |
| { "nativeDump", |
| "()V", |
| (void *)CameraMetadata_dump }, |
| { "nativeGetAllVendorKeys", |
| "(Ljava/lang/Class;)Ljava/util/ArrayList;", |
| (void *)CameraMetadata_getAllVendorKeys}, |
| // Parcelable interface |
| { "nativeReadFromParcel", |
| "(Landroid/os/Parcel;)V", |
| (void *)CameraMetadata_readFromParcel }, |
| { "nativeWriteToParcel", |
| "(Landroid/os/Parcel;)V", |
| (void *)CameraMetadata_writeToParcel }, |
| }; |
| |
| // Get all the required offsets in java class and register native functions |
| int register_android_hardware_camera2_CameraMetadata(JNIEnv *env) |
| { |
| |
| // Store global references to Key-related classes and methods used natively |
| jclass characteristicsKeyClazz = FindClassOrDie(env, CHARACTERISTICS_KEY_CLASS_NAME); |
| jclass requestKeyClazz = FindClassOrDie(env, REQUEST_KEY_CLASS_NAME); |
| jclass resultKeyClazz = FindClassOrDie(env, RESULT_KEY_CLASS_NAME); |
| gMetadataOffsets.mCharacteristicsKey = MakeGlobalRefOrDie(env, characteristicsKeyClazz); |
| gMetadataOffsets.mRequestKey = MakeGlobalRefOrDie(env, requestKeyClazz); |
| gMetadataOffsets.mResultKey = MakeGlobalRefOrDie(env, resultKeyClazz); |
| gMetadataOffsets.mCharacteristicsConstr = GetMethodIDOrDie(env, |
| gMetadataOffsets.mCharacteristicsKey, "<init>", |
| "(Ljava/lang/String;Ljava/lang/Class;J)V"); |
| gMetadataOffsets.mRequestConstr = GetMethodIDOrDie(env, |
| gMetadataOffsets.mRequestKey, "<init>", "(Ljava/lang/String;Ljava/lang/Class;J)V"); |
| gMetadataOffsets.mResultConstr = GetMethodIDOrDie(env, |
| gMetadataOffsets.mResultKey, "<init>", "(Ljava/lang/String;Ljava/lang/Class;J)V"); |
| |
| // Store global references for primitive array types used by Keys |
| jclass byteClazz = FindClassOrDie(env, "[B"); |
| jclass int32Clazz = FindClassOrDie(env, "[I"); |
| jclass floatClazz = FindClassOrDie(env, "[F"); |
| jclass int64Clazz = FindClassOrDie(env, "[J"); |
| jclass doubleClazz = FindClassOrDie(env, "[D"); |
| jclass rationalClazz = FindClassOrDie(env, "[Landroid/util/Rational;"); |
| gMetadataOffsets.mByteArray = MakeGlobalRefOrDie(env, byteClazz); |
| gMetadataOffsets.mInt32Array = MakeGlobalRefOrDie(env, int32Clazz); |
| gMetadataOffsets.mFloatArray = MakeGlobalRefOrDie(env, floatClazz); |
| gMetadataOffsets.mInt64Array = MakeGlobalRefOrDie(env, int64Clazz); |
| gMetadataOffsets.mDoubleArray = MakeGlobalRefOrDie(env, doubleClazz); |
| gMetadataOffsets.mRationalArray = MakeGlobalRefOrDie(env, rationalClazz); |
| |
| // Store global references for ArrayList methods used |
| jclass arrayListClazz = FindClassOrDie(env, "java/util/ArrayList"); |
| gMetadataOffsets.mArrayList = MakeGlobalRefOrDie(env, arrayListClazz); |
| gMetadataOffsets.mArrayListConstr = GetMethodIDOrDie(env, gMetadataOffsets.mArrayList, |
| "<init>", "(I)V"); |
| gMetadataOffsets.mArrayListAdd = GetMethodIDOrDie(env, gMetadataOffsets.mArrayList, |
| "add", "(Ljava/lang/Object;)Z"); |
| |
| jclass cameraMetadataClazz = FindClassOrDie(env, CAMERA_METADATA_CLASS_NAME); |
| fields.metadata_ptr = GetFieldIDOrDie(env, cameraMetadataClazz, "mMetadataPtr", "J"); |
| |
| // Register native functions |
| return RegisterMethodsOrDie(env, |
| CAMERA_METADATA_CLASS_NAME, |
| gCameraMetadataMethods, |
| NELEM(gCameraMetadataMethods)); |
| } |
| |
| extern "C" { |
| |
| static jint CameraMetadata_getTypeFromTagLocal(JNIEnv *env, jobject thiz, jint tag) { |
| CameraMetadata* metadata = CameraMetadata_getPointerNoThrow(env, thiz); |
| metadata_vendor_id_t vendorId = CAMERA_METADATA_INVALID_VENDOR_ID; |
| if (metadata) { |
| const camera_metadata_t *metaBuffer = metadata->getAndLock(); |
| vendorId = get_camera_metadata_vendor_id(metaBuffer); |
| metadata->unlock(metaBuffer); |
| } |
| |
| int tagType = get_local_camera_metadata_tag_type_vendor_id(tag, vendorId); |
| if (tagType == -1) { |
| jniThrowExceptionFmt(env, "java/lang/IllegalArgumentException", |
| "Tag (%d) did not have a type", tag); |
| return -1; |
| } |
| |
| return tagType; |
| } |
| |
| static jint CameraMetadata_getTagFromKeyLocal(JNIEnv *env, jobject thiz, jstring keyName) { |
| ScopedUtfChars keyScoped(env, keyName); |
| const char *key = keyScoped.c_str(); |
| if (key == NULL) { |
| // exception thrown by ScopedUtfChars |
| return 0; |
| } |
| ALOGV("%s (key = '%s')", __FUNCTION__, key); |
| |
| uint32_t tag = 0; |
| sp<VendorTagDescriptor> vTags; |
| CameraMetadata* metadata = CameraMetadata_getPointerNoThrow(env, thiz); |
| if (metadata) { |
| sp<VendorTagDescriptorCache> cache = VendorTagDescriptorCache::getGlobalVendorTagCache(); |
| if (cache.get()) { |
| const camera_metadata_t *metaBuffer = metadata->getAndLock(); |
| metadata_vendor_id_t vendorId = get_camera_metadata_vendor_id(metaBuffer); |
| metadata->unlock(metaBuffer); |
| cache->getVendorTagDescriptor(vendorId, &vTags); |
| } |
| } |
| |
| status_t res = CameraMetadata::getTagFromName(key, vTags.get(), &tag); |
| if (res != OK) { |
| jniThrowExceptionFmt(env, "java/lang/IllegalArgumentException", |
| "Could not find tag for key '%s')", key); |
| } |
| return tag; |
| } |
| |
| static jobject CameraMetadata_getAllVendorKeys(JNIEnv* env, jobject thiz, jclass keyType) { |
| metadata_vendor_id_t vendorId = CAMERA_METADATA_INVALID_VENDOR_ID; |
| // Get all vendor tags |
| sp<VendorTagDescriptor> vTags = VendorTagDescriptor::getGlobalVendorTagDescriptor(); |
| if (vTags.get() == nullptr) { |
| sp<VendorTagDescriptorCache> cache = VendorTagDescriptorCache::getGlobalVendorTagCache(); |
| if (cache.get() == nullptr) { |
| // No vendor tags. |
| return nullptr; |
| } |
| |
| CameraMetadata* metadata = CameraMetadata_getPointerThrow(env, thiz); |
| if (metadata == NULL) return NULL; |
| |
| const camera_metadata_t *metaBuffer = metadata->getAndLock(); |
| vendorId = get_camera_metadata_vendor_id(metaBuffer); |
| cache->getVendorTagDescriptor(vendorId, &vTags); |
| metadata->unlock(metaBuffer); |
| if (vTags.get() == nullptr) { |
| return nullptr; |
| } |
| } |
| |
| int count = vTags->getTagCount(); |
| if (count <= 0) { |
| // No vendor tags. |
| return NULL; |
| } |
| |
| std::vector<uint32_t> tagIds(count, /*initializer value*/0); |
| vTags->getTagArray(&tagIds[0]); |
| |
| // Which key class/constructor should we use? |
| jclass keyClazz; |
| jmethodID keyConstr; |
| if (env->IsSameObject(keyType, gMetadataOffsets.mCharacteristicsKey)) { |
| keyClazz = gMetadataOffsets.mCharacteristicsKey; |
| keyConstr = gMetadataOffsets.mCharacteristicsConstr; |
| } else if (env->IsSameObject(keyType, gMetadataOffsets.mResultKey)) { |
| keyClazz = gMetadataOffsets.mResultKey; |
| keyConstr = gMetadataOffsets.mResultConstr; |
| } else if (env->IsSameObject(keyType, gMetadataOffsets.mRequestKey)) { |
| keyClazz = gMetadataOffsets.mRequestKey; |
| keyConstr = gMetadataOffsets.mRequestConstr; |
| } else { |
| jniThrowException(env, "java/lang/IllegalArgumentException", |
| "Invalid key class given as argument."); |
| return NULL; |
| } |
| |
| // Allocate arrayList to return |
| jobject arrayList = env->NewObject(gMetadataOffsets.mArrayList, |
| gMetadataOffsets.mArrayListConstr, static_cast<jint>(count)); |
| if (env->ExceptionCheck()) { |
| return NULL; |
| } |
| |
| for (uint32_t id : tagIds) { |
| const char* section = vTags->getSectionName(id); |
| const char* tag = vTags->getTagName(id); |
| int type = vTags->getTagType(id); |
| |
| size_t totalLen = strlen(section) + strlen(tag) + 2; |
| std::vector<char> fullName(totalLen, 0); |
| snprintf(&fullName[0], totalLen, "%s.%s", section, tag); |
| |
| jstring name = env->NewStringUTF(&fullName[0]); |
| |
| if (env->ExceptionCheck()) { |
| return NULL; |
| } |
| |
| jclass valueClazz; |
| switch (type) { |
| case TYPE_BYTE: |
| valueClazz = gMetadataOffsets.mByteArray; |
| break; |
| case TYPE_INT32: |
| valueClazz = gMetadataOffsets.mInt32Array; |
| break; |
| case TYPE_FLOAT: |
| valueClazz = gMetadataOffsets.mFloatArray; |
| break; |
| case TYPE_INT64: |
| valueClazz = gMetadataOffsets.mInt64Array; |
| break; |
| case TYPE_DOUBLE: |
| valueClazz = gMetadataOffsets.mDoubleArray; |
| break; |
| case TYPE_RATIONAL: |
| valueClazz = gMetadataOffsets.mRationalArray; |
| break; |
| default: |
| jniThrowExceptionFmt(env, "java/lang/IllegalStateException", |
| "Invalid type %d given for key %s", type, &fullName[0]); |
| return NULL; |
| } |
| |
| jobject key = env->NewObject(keyClazz, keyConstr, name, valueClazz, vendorId); |
| if (env->ExceptionCheck()) { |
| return NULL; |
| } |
| |
| env->CallBooleanMethod(arrayList, gMetadataOffsets.mArrayListAdd, key); |
| if (env->ExceptionCheck()) { |
| return NULL; |
| } |
| |
| env->DeleteLocalRef(name); |
| env->DeleteLocalRef(key); |
| } |
| |
| return arrayList; |
| } |
| |
| static jint CameraMetadata_getTagFromKey(JNIEnv *env, jobject thiz, jstring keyName, |
| jlong vendorId) { |
| ScopedUtfChars keyScoped(env, keyName); |
| const char *key = keyScoped.c_str(); |
| if (key == NULL) { |
| // exception thrown by ScopedUtfChars |
| return 0; |
| } |
| ALOGV("%s (key = '%s')", __FUNCTION__, key); |
| |
| uint32_t tag = 0; |
| sp<VendorTagDescriptor> vTags = |
| VendorTagDescriptor::getGlobalVendorTagDescriptor(); |
| if (vTags.get() == nullptr) { |
| sp<VendorTagDescriptorCache> cache = VendorTagDescriptorCache::getGlobalVendorTagCache(); |
| if (cache.get() != nullptr) { |
| cache->getVendorTagDescriptor(vendorId, &vTags); |
| } |
| } |
| |
| status_t res = CameraMetadata::getTagFromName(key, vTags.get(), &tag); |
| if (res != OK) { |
| jniThrowExceptionFmt(env, "java/lang/IllegalArgumentException", |
| "Could not find tag for key '%s')", key); |
| } |
| return tag; |
| } |
| |
| static jint CameraMetadata_getTypeFromTag(JNIEnv *env, jobject thiz, jint tag, jlong vendorId) { |
| int tagType = get_local_camera_metadata_tag_type_vendor_id(tag, vendorId); |
| if (tagType == -1) { |
| jniThrowExceptionFmt(env, "java/lang/IllegalArgumentException", |
| "Tag (%d) did not have a type", tag); |
| return -1; |
| } |
| |
| return tagType; |
| } |
| |
| static jint CameraMetadata_setupGlobalVendorTagDescriptor(JNIEnv *env, jobject thiz) { |
| const String16 NAME("media.camera"); |
| sp<hardware::ICameraService> cameraService; |
| status_t err = getService(NAME, /*out*/&cameraService); |
| |
| if (err != OK) { |
| ALOGE("%s: Failed to get camera service, received error %s (%d)", __FUNCTION__, |
| strerror(-err), err); |
| return hardware::ICameraService::ERROR_DISCONNECTED; |
| } |
| |
| sp<VendorTagDescriptor> desc = new VendorTagDescriptor(); |
| binder::Status res = cameraService->getCameraVendorTagDescriptor(/*out*/desc.get()); |
| |
| if (res.serviceSpecificErrorCode() == hardware::ICameraService::ERROR_DISCONNECTED) { |
| // No camera module available, not an error on devices with no cameras |
| VendorTagDescriptor::clearGlobalVendorTagDescriptor(); |
| return OK; |
| } else if (!res.isOk()) { |
| VendorTagDescriptor::clearGlobalVendorTagDescriptor(); |
| ALOGE("%s: Failed to setup vendor tag descriptors: %s", |
| __FUNCTION__, res.toString8().string()); |
| return res.serviceSpecificErrorCode(); |
| } |
| if (0 < desc->getTagCount()) { |
| err = VendorTagDescriptor::setAsGlobalVendorTagDescriptor(desc); |
| } else { |
| sp<VendorTagDescriptorCache> cache = new VendorTagDescriptorCache(); |
| binder::Status res = cameraService->getCameraVendorTagCache(/*out*/cache.get()); |
| if (res.serviceSpecificErrorCode() == hardware::ICameraService::ERROR_DISCONNECTED) { |
| // No camera module available, not an error on devices with no cameras |
| VendorTagDescriptorCache::clearGlobalVendorTagCache(); |
| return OK; |
| } else if (!res.isOk()) { |
| VendorTagDescriptorCache::clearGlobalVendorTagCache(); |
| ALOGE("%s: Failed to setup vendor tag cache: %s", |
| __FUNCTION__, res.toString8().string()); |
| return res.serviceSpecificErrorCode(); |
| } |
| |
| err = VendorTagDescriptorCache::setAsGlobalVendorTagCache(cache); |
| } |
| |
| if (err != OK) { |
| return hardware::ICameraService::ERROR_INVALID_OPERATION; |
| } |
| return OK; |
| } |
| |
| } // extern "C" |