Igor Murashkin | 7072550 | 2013-06-25 20:27:06 +0000 | [diff] [blame] | 1 | /* |
| 2 | ** |
| 3 | ** Copyright 2013, The Android Open Source Project |
| 4 | ** |
| 5 | ** Licensed under the Apache License, Version 2.0 (the "License"); |
| 6 | ** you may not use this file except in compliance with the License. |
| 7 | ** You may obtain a copy of the License at |
| 8 | ** |
| 9 | ** http://www.apache.org/licenses/LICENSE-2.0 |
| 10 | ** |
| 11 | ** Unless required by applicable law or agreed to in writing, software |
| 12 | ** distributed under the License is distributed on an "AS IS" BASIS, |
| 13 | ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 14 | ** See the License for the specific language governing permissions and |
| 15 | ** limitations under the License. |
| 16 | */ |
| 17 | |
| 18 | // #define LOG_NDEBUG 0 |
| 19 | #define LOG_TAG "CameraMetadata-JNI" |
Ruben Brunk | 32ef3ae | 2014-02-21 17:40:51 -0800 | [diff] [blame] | 20 | #include <utils/Errors.h> |
Igor Murashkin | 7072550 | 2013-06-25 20:27:06 +0000 | [diff] [blame] | 21 | #include <utils/Log.h> |
Ruben Brunk | 85c4388 | 2014-02-21 17:40:51 -0800 | [diff] [blame] | 22 | #include <utils/RefBase.h> |
Ruben Brunk | 32ef3ae | 2014-02-21 17:40:51 -0800 | [diff] [blame] | 23 | #include <utils/Vector.h> |
| 24 | #include <utils/SortedVector.h> |
| 25 | #include <utils/KeyedVector.h> |
Ruben Brunk | 85c4388 | 2014-02-21 17:40:51 -0800 | [diff] [blame] | 26 | #include <string.h> |
Igor Murashkin | 7072550 | 2013-06-25 20:27:06 +0000 | [diff] [blame] | 27 | |
| 28 | #include "jni.h" |
| 29 | #include "JNIHelp.h" |
| 30 | #include "android_os_Parcel.h" |
Andreas Gampe | ed6b9df | 2014-11-20 22:02:20 -0800 | [diff] [blame^] | 31 | #include "core_jni_helpers.h" |
Ruben Brunk | f967a54 | 2014-04-28 16:31:11 -0700 | [diff] [blame] | 32 | #include "android_runtime/android_hardware_camera2_CameraMetadata.h" |
Igor Murashkin | 7072550 | 2013-06-25 20:27:06 +0000 | [diff] [blame] | 33 | |
Ruben Brunk | 85c4388 | 2014-02-21 17:40:51 -0800 | [diff] [blame] | 34 | #include <binder/IServiceManager.h> |
Igor Murashkin | 7072550 | 2013-06-25 20:27:06 +0000 | [diff] [blame] | 35 | #include <camera/CameraMetadata.h> |
Ruben Brunk | 85c4388 | 2014-02-21 17:40:51 -0800 | [diff] [blame] | 36 | #include <camera/ICameraService.h> |
| 37 | #include <camera/VendorTagDescriptor.h> |
Igor Murashkin | b519cc5 | 2013-07-02 11:23:44 -0700 | [diff] [blame] | 38 | #include <nativehelper/ScopedUtfChars.h> |
| 39 | #include <nativehelper/ScopedPrimitiveArray.h> |
| 40 | |
Igor Murashkin | d6d6515 | 2014-05-19 16:31:02 -0700 | [diff] [blame] | 41 | #include <sys/types.h> // for socketpair |
| 42 | #include <sys/socket.h> // for socketpair |
| 43 | |
Andreas Gampe | ed6b9df | 2014-11-20 22:02:20 -0800 | [diff] [blame^] | 44 | static const bool kIsDebug = false; |
Igor Murashkin | 7072550 | 2013-06-25 20:27:06 +0000 | [diff] [blame] | 45 | |
| 46 | // fully-qualified class name |
Eino-Ville Talvala | 70c2207 | 2013-08-27 12:09:04 -0700 | [diff] [blame] | 47 | #define CAMERA_METADATA_CLASS_NAME "android/hardware/camera2/impl/CameraMetadataNative" |
Igor Murashkin | 7072550 | 2013-06-25 20:27:06 +0000 | [diff] [blame] | 48 | |
| 49 | using namespace android; |
| 50 | |
| 51 | struct fields_t { |
| 52 | jfieldID metadata_ptr; |
| 53 | }; |
| 54 | |
| 55 | static fields_t fields; |
| 56 | |
Ruben Brunk | f967a54 | 2014-04-28 16:31:11 -0700 | [diff] [blame] | 57 | namespace android { |
| 58 | |
| 59 | status_t CameraMetadata_getNativeMetadata(JNIEnv* env, jobject thiz, |
| 60 | /*out*/CameraMetadata* metadata) { |
| 61 | if (!thiz) { |
| 62 | ALOGE("%s: Invalid java metadata object.", __FUNCTION__); |
| 63 | return BAD_VALUE; |
| 64 | } |
| 65 | |
| 66 | if (!metadata) { |
| 67 | ALOGE("%s: Invalid output metadata object.", __FUNCTION__); |
| 68 | return BAD_VALUE; |
| 69 | } |
| 70 | CameraMetadata* nativePtr = reinterpret_cast<CameraMetadata*>(env->GetLongField(thiz, |
| 71 | fields.metadata_ptr)); |
| 72 | if (nativePtr == NULL) { |
| 73 | ALOGE("%s: Invalid native pointer in java metadata object.", __FUNCTION__); |
| 74 | return BAD_VALUE; |
| 75 | } |
| 76 | *metadata = *nativePtr; |
| 77 | return OK; |
| 78 | } |
| 79 | |
| 80 | } /*namespace android*/ |
| 81 | |
Igor Murashkin | b519cc5 | 2013-07-02 11:23:44 -0700 | [diff] [blame] | 82 | namespace { |
| 83 | struct Helpers { |
| 84 | static size_t getTypeSize(uint8_t type) { |
| 85 | if (type >= NUM_TYPES) { |
| 86 | ALOGE("%s: Invalid type specified (%ud)", __FUNCTION__, type); |
| 87 | return static_cast<size_t>(-1); |
| 88 | } |
| 89 | |
| 90 | return camera_metadata_type_size[type]; |
| 91 | } |
| 92 | |
| 93 | static status_t updateAny(CameraMetadata *metadata, |
| 94 | uint32_t tag, |
| 95 | uint32_t type, |
| 96 | const void *data, |
| 97 | size_t dataBytes) { |
| 98 | |
| 99 | if (type >= NUM_TYPES) { |
| 100 | ALOGE("%s: Invalid type specified (%ud)", __FUNCTION__, type); |
| 101 | return INVALID_OPERATION; |
| 102 | } |
| 103 | |
| 104 | size_t typeSize = getTypeSize(type); |
| 105 | |
| 106 | if (dataBytes % typeSize != 0) { |
Dan Albert | 46d8444 | 2014-11-18 16:07:51 -0800 | [diff] [blame] | 107 | ALOGE("%s: Expected dataBytes (%zu) to be divisible by typeSize " |
| 108 | "(%zu)", __FUNCTION__, dataBytes, typeSize); |
Igor Murashkin | b519cc5 | 2013-07-02 11:23:44 -0700 | [diff] [blame] | 109 | return BAD_VALUE; |
| 110 | } |
| 111 | |
| 112 | size_t dataCount = dataBytes / typeSize; |
| 113 | |
| 114 | switch(type) { |
| 115 | #define METADATA_UPDATE(runtime_type, compile_type) \ |
| 116 | case runtime_type: { \ |
| 117 | const compile_type *dataPtr = \ |
| 118 | static_cast<const compile_type*>(data); \ |
| 119 | return metadata->update(tag, dataPtr, dataCount); \ |
| 120 | } \ |
| 121 | |
| 122 | METADATA_UPDATE(TYPE_BYTE, uint8_t); |
| 123 | METADATA_UPDATE(TYPE_INT32, int32_t); |
| 124 | METADATA_UPDATE(TYPE_FLOAT, float); |
| 125 | METADATA_UPDATE(TYPE_INT64, int64_t); |
| 126 | METADATA_UPDATE(TYPE_DOUBLE, double); |
| 127 | METADATA_UPDATE(TYPE_RATIONAL, camera_metadata_rational_t); |
| 128 | |
| 129 | default: { |
| 130 | // unreachable |
| 131 | ALOGE("%s: Unreachable", __FUNCTION__); |
| 132 | return INVALID_OPERATION; |
| 133 | } |
| 134 | } |
| 135 | |
| 136 | #undef METADATA_UPDATE |
| 137 | } |
| 138 | }; |
| 139 | } // namespace {} |
| 140 | |
Igor Murashkin | 7072550 | 2013-06-25 20:27:06 +0000 | [diff] [blame] | 141 | extern "C" { |
| 142 | |
| 143 | static void CameraMetadata_classInit(JNIEnv *env, jobject thiz); |
Igor Murashkin | b519cc5 | 2013-07-02 11:23:44 -0700 | [diff] [blame] | 144 | static jint CameraMetadata_getTagFromKey(JNIEnv *env, jobject thiz, jstring keyName); |
| 145 | static jint CameraMetadata_getTypeFromTag(JNIEnv *env, jobject thiz, jint tag); |
Ruben Brunk | 85c4388 | 2014-02-21 17:40:51 -0800 | [diff] [blame] | 146 | static jint CameraMetadata_setupGlobalVendorTagDescriptor(JNIEnv *env, jobject thiz); |
Igor Murashkin | 7072550 | 2013-06-25 20:27:06 +0000 | [diff] [blame] | 147 | |
| 148 | // Less safe access to native pointer. Does NOT throw any Java exceptions if NULL. |
| 149 | static CameraMetadata* CameraMetadata_getPointerNoThrow(JNIEnv *env, jobject thiz) { |
| 150 | |
| 151 | if (thiz == NULL) { |
| 152 | return NULL; |
| 153 | } |
| 154 | |
| 155 | return reinterpret_cast<CameraMetadata*>(env->GetLongField(thiz, fields.metadata_ptr)); |
| 156 | } |
| 157 | |
| 158 | // Safe access to native pointer from object. Throws if not possible to access. |
| 159 | static CameraMetadata* CameraMetadata_getPointerThrow(JNIEnv *env, jobject thiz, |
| 160 | const char* argName = "this") { |
| 161 | |
| 162 | if (thiz == NULL) { |
| 163 | ALOGV("%s: Throwing java.lang.NullPointerException for null reference", |
| 164 | __FUNCTION__); |
| 165 | jniThrowNullPointerException(env, argName); |
| 166 | return NULL; |
| 167 | } |
| 168 | |
| 169 | CameraMetadata* metadata = CameraMetadata_getPointerNoThrow(env, thiz); |
| 170 | if (metadata == NULL) { |
| 171 | ALOGV("%s: Throwing java.lang.IllegalStateException for closed object", |
| 172 | __FUNCTION__); |
| 173 | jniThrowException(env, "java/lang/IllegalStateException", |
| 174 | "Metadata object was already closed"); |
| 175 | return NULL; |
| 176 | } |
| 177 | |
| 178 | return metadata; |
| 179 | } |
| 180 | |
| 181 | static jlong CameraMetadata_allocate(JNIEnv *env, jobject thiz) { |
| 182 | ALOGV("%s", __FUNCTION__); |
| 183 | |
| 184 | return reinterpret_cast<jlong>(new CameraMetadata()); |
| 185 | } |
| 186 | |
Eino-Ville Talvala | 70c2207 | 2013-08-27 12:09:04 -0700 | [diff] [blame] | 187 | static jlong CameraMetadata_allocateCopy(JNIEnv *env, jobject thiz, |
| 188 | jobject other) { |
| 189 | ALOGV("%s", __FUNCTION__); |
| 190 | |
| 191 | CameraMetadata* otherMetadata = |
| 192 | CameraMetadata_getPointerThrow(env, other, "other"); |
| 193 | |
| 194 | // In case of exception, return |
| 195 | if (otherMetadata == NULL) return NULL; |
| 196 | |
| 197 | // Clone native metadata and return new pointer |
| 198 | return reinterpret_cast<jlong>(new CameraMetadata(*otherMetadata)); |
| 199 | } |
| 200 | |
| 201 | |
Igor Murashkin | 7072550 | 2013-06-25 20:27:06 +0000 | [diff] [blame] | 202 | static jboolean CameraMetadata_isEmpty(JNIEnv *env, jobject thiz) { |
| 203 | ALOGV("%s", __FUNCTION__); |
| 204 | |
| 205 | CameraMetadata* metadata = CameraMetadata_getPointerThrow(env, thiz); |
| 206 | |
| 207 | if (metadata == NULL) { |
| 208 | ALOGW("%s: Returning early due to exception being thrown", |
| 209 | __FUNCTION__); |
| 210 | return JNI_TRUE; // actually throws java exc. |
| 211 | } |
| 212 | |
| 213 | jboolean empty = metadata->isEmpty(); |
| 214 | |
Dan Albert | 46d8444 | 2014-11-18 16:07:51 -0800 | [diff] [blame] | 215 | ALOGV("%s: Empty returned %d, entry count was %zu", |
Igor Murashkin | 7072550 | 2013-06-25 20:27:06 +0000 | [diff] [blame] | 216 | __FUNCTION__, empty, metadata->entryCount()); |
| 217 | |
| 218 | return empty; |
| 219 | } |
| 220 | |
| 221 | static jint CameraMetadata_getEntryCount(JNIEnv *env, jobject thiz) { |
| 222 | ALOGV("%s", __FUNCTION__); |
| 223 | |
| 224 | CameraMetadata* metadata = CameraMetadata_getPointerThrow(env, thiz); |
| 225 | |
| 226 | if (metadata == NULL) return 0; // actually throws java exc. |
| 227 | |
| 228 | return metadata->entryCount(); |
| 229 | } |
| 230 | |
| 231 | // idempotent. calling more than once has no effect. |
| 232 | static void CameraMetadata_close(JNIEnv *env, jobject thiz) { |
| 233 | ALOGV("%s", __FUNCTION__); |
| 234 | |
| 235 | CameraMetadata* metadata = CameraMetadata_getPointerNoThrow(env, thiz); |
| 236 | |
| 237 | if (metadata != NULL) { |
| 238 | delete metadata; |
| 239 | env->SetLongField(thiz, fields.metadata_ptr, 0); |
| 240 | } |
| 241 | |
| 242 | LOG_ALWAYS_FATAL_IF(CameraMetadata_getPointerNoThrow(env, thiz) != NULL, |
| 243 | "Expected the native ptr to be 0 after #close"); |
| 244 | } |
| 245 | |
| 246 | static void CameraMetadata_swap(JNIEnv *env, jobject thiz, jobject other) { |
| 247 | ALOGV("%s", __FUNCTION__); |
| 248 | |
| 249 | CameraMetadata* metadata = CameraMetadata_getPointerThrow(env, thiz); |
| 250 | |
| 251 | // order is important: we can't call another JNI method |
| 252 | // if there is an exception pending |
| 253 | if (metadata == NULL) return; |
| 254 | |
| 255 | CameraMetadata* otherMetadata = CameraMetadata_getPointerThrow(env, other, "other"); |
| 256 | |
| 257 | if (otherMetadata == NULL) return; |
| 258 | |
| 259 | metadata->swap(*otherMetadata); |
| 260 | } |
| 261 | |
Igor Murashkin | b519cc5 | 2013-07-02 11:23:44 -0700 | [diff] [blame] | 262 | static jbyteArray CameraMetadata_readValues(JNIEnv *env, jobject thiz, jint tag) { |
| 263 | ALOGV("%s (tag = %d)", __FUNCTION__, tag); |
| 264 | |
| 265 | CameraMetadata* metadata = CameraMetadata_getPointerThrow(env, thiz); |
| 266 | if (metadata == NULL) return NULL; |
| 267 | |
| 268 | int tagType = get_camera_metadata_tag_type(tag); |
| 269 | if (tagType == -1) { |
| 270 | jniThrowExceptionFmt(env, "java/lang/IllegalArgumentException", |
| 271 | "Tag (%d) did not have a type", tag); |
| 272 | return NULL; |
| 273 | } |
| 274 | size_t tagSize = Helpers::getTypeSize(tagType); |
| 275 | |
| 276 | camera_metadata_entry entry = metadata->find(tag); |
| 277 | if (entry.count == 0) { |
| 278 | if (!metadata->exists(tag)) { |
| 279 | ALOGV("%s: Tag %d does not have any entries", __FUNCTION__, tag); |
| 280 | return NULL; |
| 281 | } else { |
| 282 | // OK: we will return a 0-sized array. |
| 283 | ALOGV("%s: Tag %d had an entry, but it had 0 data", __FUNCTION__, |
| 284 | tag); |
| 285 | } |
| 286 | } |
| 287 | |
| 288 | jsize byteCount = entry.count * tagSize; |
| 289 | jbyteArray byteArray = env->NewByteArray(byteCount); |
| 290 | if (env->ExceptionCheck()) return NULL; |
| 291 | |
| 292 | // Copy into java array from native array |
| 293 | ScopedByteArrayRW arrayWriter(env, byteArray); |
| 294 | memcpy(arrayWriter.get(), entry.data.u8, byteCount); |
| 295 | |
| 296 | return byteArray; |
| 297 | } |
| 298 | |
| 299 | static void CameraMetadata_writeValues(JNIEnv *env, jobject thiz, jint tag, jbyteArray src) { |
| 300 | ALOGV("%s (tag = %d)", __FUNCTION__, tag); |
| 301 | |
| 302 | CameraMetadata* metadata = CameraMetadata_getPointerThrow(env, thiz); |
| 303 | if (metadata == NULL) return; |
| 304 | |
| 305 | int tagType = get_camera_metadata_tag_type(tag); |
| 306 | if (tagType == -1) { |
| 307 | jniThrowExceptionFmt(env, "java/lang/IllegalArgumentException", |
| 308 | "Tag (%d) did not have a type", tag); |
| 309 | return; |
| 310 | } |
Igor Murashkin | b519cc5 | 2013-07-02 11:23:44 -0700 | [diff] [blame] | 311 | |
| 312 | status_t res; |
| 313 | |
| 314 | if (src == NULL) { |
| 315 | // If array is NULL, delete the entry |
Igor Murashkin | 3710db8 | 2013-07-18 20:11:17 -0700 | [diff] [blame] | 316 | if (metadata->exists(tag)) { |
| 317 | res = metadata->erase(tag); |
| 318 | ALOGV("%s: Erase values (res = %d)", __FUNCTION__, res); |
| 319 | } else { |
| 320 | res = OK; |
| 321 | ALOGV("%s: Don't need to erase", __FUNCTION__); |
| 322 | } |
Igor Murashkin | b519cc5 | 2013-07-02 11:23:44 -0700 | [diff] [blame] | 323 | } else { |
| 324 | // Copy from java array into native array |
| 325 | ScopedByteArrayRO arrayReader(env, src); |
| 326 | if (arrayReader.get() == NULL) return; |
| 327 | |
| 328 | res = Helpers::updateAny(metadata, static_cast<uint32_t>(tag), |
| 329 | tagType, arrayReader.get(), arrayReader.size()); |
Igor Murashkin | 3710db8 | 2013-07-18 20:11:17 -0700 | [diff] [blame] | 330 | |
| 331 | ALOGV("%s: Update values (res = %d)", __FUNCTION__, res); |
Igor Murashkin | b519cc5 | 2013-07-02 11:23:44 -0700 | [diff] [blame] | 332 | } |
| 333 | |
| 334 | if (res == OK) { |
| 335 | return; |
| 336 | } else if (res == BAD_VALUE) { |
| 337 | jniThrowExceptionFmt(env, "java/lang/IllegalArgumentException", |
| 338 | "Src byte array was poorly formed"); |
| 339 | } else if (res == INVALID_OPERATION) { |
| 340 | jniThrowExceptionFmt(env, "java/lang/IllegalStateException", |
| 341 | "Internal error while trying to update metadata"); |
| 342 | } else { |
| 343 | jniThrowExceptionFmt(env, "java/lang/IllegalStateException", |
| 344 | "Unknown error (%d) while trying to update " |
| 345 | "metadata", res); |
| 346 | } |
| 347 | } |
| 348 | |
Igor Murashkin | d6d6515 | 2014-05-19 16:31:02 -0700 | [diff] [blame] | 349 | struct DumpMetadataParams { |
| 350 | int writeFd; |
| 351 | const CameraMetadata* metadata; |
| 352 | }; |
| 353 | |
| 354 | static void* CameraMetadata_writeMetadataThread(void* arg) { |
| 355 | DumpMetadataParams* p = static_cast<DumpMetadataParams*>(arg); |
| 356 | |
| 357 | /* |
| 358 | * Write the dumped data, and close the writing side FD. |
| 359 | */ |
| 360 | p->metadata->dump(p->writeFd, /*verbosity*/2); |
| 361 | |
| 362 | if (close(p->writeFd) < 0) { |
| 363 | ALOGE("%s: Failed to close writeFd (errno = %#x, message = '%s')", |
| 364 | __FUNCTION__, errno, strerror(errno)); |
| 365 | } |
| 366 | |
| 367 | return NULL; |
| 368 | } |
| 369 | |
| 370 | static void CameraMetadata_dump(JNIEnv *env, jobject thiz) { |
| 371 | ALOGV("%s", __FUNCTION__); |
| 372 | CameraMetadata* metadata = CameraMetadata_getPointerThrow(env, thiz); |
| 373 | if (metadata == NULL) { |
| 374 | return; |
| 375 | } |
| 376 | |
| 377 | /* |
| 378 | * Create a socket pair for local streaming read/writes. |
| 379 | * |
| 380 | * The metadata will be dumped into the write side, |
| 381 | * and then read back out (and logged) via the read side. |
| 382 | */ |
| 383 | |
| 384 | int writeFd, readFd; |
| 385 | { |
| 386 | |
| 387 | int sv[2]; |
| 388 | if (socketpair(AF_LOCAL, SOCK_STREAM, /*protocol*/0, &sv[0]) < 0) { |
| 389 | jniThrowExceptionFmt(env, "java/io/IOException", |
| 390 | "Failed to create socketpair (errno = %#x, message = '%s')", |
| 391 | errno, strerror(errno)); |
| 392 | return; |
| 393 | } |
| 394 | writeFd = sv[0]; |
| 395 | readFd = sv[1]; |
| 396 | } |
| 397 | |
| 398 | /* |
| 399 | * Create a thread for doing the writing. |
| 400 | * |
| 401 | * The reading and writing must be concurrent, otherwise |
| 402 | * the write will block forever once it exhausts the capped |
| 403 | * buffer size (from getsockopt). |
| 404 | */ |
| 405 | pthread_t writeThread; |
| 406 | DumpMetadataParams params = { |
| 407 | writeFd, |
| 408 | metadata |
| 409 | }; |
| 410 | |
| 411 | { |
| 412 | int threadRet = pthread_create(&writeThread, /*attr*/NULL, |
| 413 | CameraMetadata_writeMetadataThread, (void*)¶ms); |
| 414 | |
| 415 | if (threadRet != 0) { |
| 416 | close(writeFd); |
| 417 | |
| 418 | jniThrowExceptionFmt(env, "java/io/IOException", |
| 419 | "Failed to create thread for writing (errno = %#x, message = '%s')", |
| 420 | threadRet, strerror(threadRet)); |
| 421 | } |
| 422 | } |
| 423 | |
| 424 | /* |
| 425 | * Read out a byte until stream is complete. Write completed lines |
| 426 | * to ALOG. |
| 427 | */ |
| 428 | { |
| 429 | char out[] = {'\0', '\0'}; // large enough to append as a string |
| 430 | String8 logLine; |
| 431 | |
| 432 | // Read one byte at a time! Very slow but avoids complicated \n scanning. |
| 433 | ssize_t res; |
| 434 | while ((res = TEMP_FAILURE_RETRY(read(readFd, &out[0], /*count*/1))) > 0) { |
| 435 | if (out[0] == '\n') { |
| 436 | ALOGD("%s", logLine.string()); |
| 437 | logLine.clear(); |
| 438 | } else { |
| 439 | logLine.append(out); |
| 440 | } |
| 441 | } |
| 442 | |
| 443 | if (res < 0) { |
| 444 | jniThrowExceptionFmt(env, "java/io/IOException", |
| 445 | "Failed to read from fd (errno = %#x, message = '%s')", |
| 446 | errno, strerror(errno)); |
| 447 | //return; |
| 448 | } else if (!logLine.isEmpty()) { |
| 449 | ALOGD("%s", logLine.string()); |
| 450 | } |
| 451 | } |
| 452 | |
| 453 | int res; |
| 454 | |
| 455 | // Join until thread finishes. Ensures params/metadata is valid until then. |
| 456 | if ((res = pthread_join(writeThread, /*retval*/NULL)) != 0) { |
| 457 | ALOGE("%s: Failed to join thread (errno = %#x, message = '%s')", |
| 458 | __FUNCTION__, res, strerror(res)); |
| 459 | } |
| 460 | } |
| 461 | |
Igor Murashkin | 7072550 | 2013-06-25 20:27:06 +0000 | [diff] [blame] | 462 | static void CameraMetadata_readFromParcel(JNIEnv *env, jobject thiz, jobject parcel) { |
| 463 | ALOGV("%s", __FUNCTION__); |
| 464 | CameraMetadata* metadata = CameraMetadata_getPointerThrow(env, thiz); |
| 465 | if (metadata == NULL) { |
| 466 | return; |
| 467 | } |
| 468 | |
| 469 | Parcel* parcelNative = parcelForJavaObject(env, parcel); |
| 470 | if (parcelNative == NULL) { |
| 471 | jniThrowNullPointerException(env, "parcel"); |
| 472 | return; |
| 473 | } |
| 474 | |
| 475 | status_t err; |
| 476 | if ((err = metadata->readFromParcel(parcelNative)) != OK) { |
| 477 | jniThrowExceptionFmt(env, "java/lang/IllegalStateException", |
| 478 | "Failed to read from parcel (error code %d)", err); |
| 479 | return; |
| 480 | } |
| 481 | } |
| 482 | |
| 483 | static void CameraMetadata_writeToParcel(JNIEnv *env, jobject thiz, jobject parcel) { |
| 484 | ALOGV("%s", __FUNCTION__); |
| 485 | CameraMetadata* metadata = CameraMetadata_getPointerThrow(env, thiz); |
| 486 | if (metadata == NULL) { |
| 487 | return; |
| 488 | } |
| 489 | |
| 490 | Parcel* parcelNative = parcelForJavaObject(env, parcel); |
| 491 | if (parcelNative == NULL) { |
| 492 | jniThrowNullPointerException(env, "parcel"); |
| 493 | return; |
| 494 | } |
| 495 | |
| 496 | status_t err; |
| 497 | if ((err = metadata->writeToParcel(parcelNative)) != OK) { |
| 498 | jniThrowExceptionFmt(env, "java/lang/IllegalStateException", |
| 499 | "Failed to write to parcel (error code %d)", err); |
| 500 | return; |
| 501 | } |
| 502 | } |
| 503 | |
| 504 | } // extern "C" |
| 505 | |
| 506 | //------------------------------------------------- |
| 507 | |
| 508 | static JNINativeMethod gCameraMetadataMethods[] = { |
Igor Murashkin | b519cc5 | 2013-07-02 11:23:44 -0700 | [diff] [blame] | 509 | // static methods |
Igor Murashkin | 7072550 | 2013-06-25 20:27:06 +0000 | [diff] [blame] | 510 | { "nativeClassInit", |
| 511 | "()V", |
| 512 | (void *)CameraMetadata_classInit }, |
Igor Murashkin | b519cc5 | 2013-07-02 11:23:44 -0700 | [diff] [blame] | 513 | { "nativeGetTagFromKey", |
| 514 | "(Ljava/lang/String;)I", |
| 515 | (void *)CameraMetadata_getTagFromKey }, |
| 516 | { "nativeGetTypeFromTag", |
| 517 | "(I)I", |
| 518 | (void *)CameraMetadata_getTypeFromTag }, |
Ruben Brunk | 85c4388 | 2014-02-21 17:40:51 -0800 | [diff] [blame] | 519 | { "nativeSetupGlobalVendorTagDescriptor", |
| 520 | "()I", |
| 521 | (void*)CameraMetadata_setupGlobalVendorTagDescriptor }, |
Igor Murashkin | b519cc5 | 2013-07-02 11:23:44 -0700 | [diff] [blame] | 522 | // instance methods |
Igor Murashkin | 7072550 | 2013-06-25 20:27:06 +0000 | [diff] [blame] | 523 | { "nativeAllocate", |
| 524 | "()J", |
| 525 | (void*)CameraMetadata_allocate }, |
Eino-Ville Talvala | 70c2207 | 2013-08-27 12:09:04 -0700 | [diff] [blame] | 526 | { "nativeAllocateCopy", |
| 527 | "(L" CAMERA_METADATA_CLASS_NAME ";)J", |
| 528 | (void *)CameraMetadata_allocateCopy }, |
Igor Murashkin | 7072550 | 2013-06-25 20:27:06 +0000 | [diff] [blame] | 529 | { "nativeIsEmpty", |
| 530 | "()Z", |
| 531 | (void*)CameraMetadata_isEmpty }, |
| 532 | { "nativeGetEntryCount", |
| 533 | "()I", |
| 534 | (void*)CameraMetadata_getEntryCount }, |
| 535 | { "nativeClose", |
| 536 | "()V", |
| 537 | (void*)CameraMetadata_close }, |
| 538 | { "nativeSwap", |
| 539 | "(L" CAMERA_METADATA_CLASS_NAME ";)V", |
| 540 | (void *)CameraMetadata_swap }, |
Igor Murashkin | b519cc5 | 2013-07-02 11:23:44 -0700 | [diff] [blame] | 541 | { "nativeReadValues", |
| 542 | "(I)[B", |
| 543 | (void *)CameraMetadata_readValues }, |
| 544 | { "nativeWriteValues", |
| 545 | "(I[B)V", |
| 546 | (void *)CameraMetadata_writeValues }, |
Igor Murashkin | d6d6515 | 2014-05-19 16:31:02 -0700 | [diff] [blame] | 547 | { "nativeDump", |
| 548 | "()V", |
| 549 | (void *)CameraMetadata_dump }, |
Igor Murashkin | b519cc5 | 2013-07-02 11:23:44 -0700 | [diff] [blame] | 550 | // Parcelable interface |
Igor Murashkin | 7072550 | 2013-06-25 20:27:06 +0000 | [diff] [blame] | 551 | { "nativeReadFromParcel", |
| 552 | "(Landroid/os/Parcel;)V", |
| 553 | (void *)CameraMetadata_readFromParcel }, |
| 554 | { "nativeWriteToParcel", |
| 555 | "(Landroid/os/Parcel;)V", |
| 556 | (void *)CameraMetadata_writeToParcel }, |
| 557 | }; |
| 558 | |
| 559 | struct field { |
| 560 | const char *class_name; |
| 561 | const char *field_name; |
| 562 | const char *field_type; |
| 563 | jfieldID *jfield; |
| 564 | }; |
| 565 | |
| 566 | static int find_fields(JNIEnv *env, field *fields, int count) |
| 567 | { |
| 568 | for (int i = 0; i < count; i++) { |
| 569 | field *f = &fields[i]; |
| 570 | jclass clazz = env->FindClass(f->class_name); |
| 571 | if (clazz == NULL) { |
| 572 | ALOGE("Can't find %s", f->class_name); |
| 573 | return -1; |
| 574 | } |
| 575 | |
| 576 | jfieldID field = env->GetFieldID(clazz, f->field_name, f->field_type); |
| 577 | if (field == NULL) { |
| 578 | ALOGE("Can't find %s.%s", f->class_name, f->field_name); |
| 579 | return -1; |
| 580 | } |
| 581 | |
| 582 | *(f->jfield) = field; |
| 583 | } |
| 584 | |
| 585 | return 0; |
| 586 | } |
| 587 | |
| 588 | // Get all the required offsets in java class and register native functions |
Eino-Ville Talvala | 2f1a2e4 | 2013-07-25 17:12:05 -0700 | [diff] [blame] | 589 | int register_android_hardware_camera2_CameraMetadata(JNIEnv *env) |
Igor Murashkin | 7072550 | 2013-06-25 20:27:06 +0000 | [diff] [blame] | 590 | { |
| 591 | // Register native functions |
Andreas Gampe | ed6b9df | 2014-11-20 22:02:20 -0800 | [diff] [blame^] | 592 | return RegisterMethodsOrDie(env, |
Igor Murashkin | 7072550 | 2013-06-25 20:27:06 +0000 | [diff] [blame] | 593 | CAMERA_METADATA_CLASS_NAME, |
| 594 | gCameraMetadataMethods, |
| 595 | NELEM(gCameraMetadataMethods)); |
| 596 | } |
| 597 | |
| 598 | extern "C" { |
| 599 | static void CameraMetadata_classInit(JNIEnv *env, jobject thiz) { |
| 600 | // XX: Why do this separately instead of doing it in the register function? |
| 601 | ALOGV("%s", __FUNCTION__); |
| 602 | |
| 603 | field fields_to_find[] = { |
| 604 | { CAMERA_METADATA_CLASS_NAME, "mMetadataPtr", "J", &fields.metadata_ptr }, |
| 605 | }; |
| 606 | |
| 607 | // Do this here instead of in register_native_methods, |
| 608 | // since otherwise it will fail to find the fields. |
| 609 | if (find_fields(env, fields_to_find, NELEM(fields_to_find)) < 0) |
| 610 | return; |
| 611 | |
Andreas Gampe | 0f0b491 | 2014-11-12 08:03:48 -0800 | [diff] [blame] | 612 | env->FindClass(CAMERA_METADATA_CLASS_NAME); |
Igor Murashkin | 7072550 | 2013-06-25 20:27:06 +0000 | [diff] [blame] | 613 | } |
Igor Murashkin | b519cc5 | 2013-07-02 11:23:44 -0700 | [diff] [blame] | 614 | |
| 615 | static jint CameraMetadata_getTagFromKey(JNIEnv *env, jobject thiz, jstring keyName) { |
| 616 | |
| 617 | ScopedUtfChars keyScoped(env, keyName); |
| 618 | const char *key = keyScoped.c_str(); |
| 619 | if (key == NULL) { |
| 620 | // exception thrown by ScopedUtfChars |
| 621 | return 0; |
| 622 | } |
| 623 | size_t keyLength = strlen(key); |
| 624 | |
| 625 | ALOGV("%s (key = '%s')", __FUNCTION__, key); |
| 626 | |
Ruben Brunk | 32ef3ae | 2014-02-21 17:40:51 -0800 | [diff] [blame] | 627 | sp<VendorTagDescriptor> vTags = VendorTagDescriptor::getGlobalVendorTagDescriptor(); |
| 628 | |
Igor Murashkin | 3c40a04 | 2014-04-22 15:05:50 -0700 | [diff] [blame] | 629 | SortedVector<String8> vendorSections; |
| 630 | size_t vendorSectionCount = 0; |
| 631 | |
Ruben Brunk | feb50af | 2014-05-09 19:58:49 -0700 | [diff] [blame] | 632 | if (vTags != NULL) { |
Igor Murashkin | 3c40a04 | 2014-04-22 15:05:50 -0700 | [diff] [blame] | 633 | vendorSections = vTags->getAllSectionNames(); |
| 634 | vendorSectionCount = vendorSections.size(); |
| 635 | } |
Ruben Brunk | 32ef3ae | 2014-02-21 17:40:51 -0800 | [diff] [blame] | 636 | |
Igor Murashkin | b519cc5 | 2013-07-02 11:23:44 -0700 | [diff] [blame] | 637 | // First, find the section by the longest string match |
| 638 | const char *section = NULL; |
| 639 | size_t sectionIndex = 0; |
| 640 | size_t sectionLength = 0; |
Ruben Brunk | 32ef3ae | 2014-02-21 17:40:51 -0800 | [diff] [blame] | 641 | size_t totalSectionCount = ANDROID_SECTION_COUNT + vendorSectionCount; |
| 642 | for (size_t i = 0; i < totalSectionCount; ++i) { |
| 643 | |
| 644 | const char *str = (i < ANDROID_SECTION_COUNT) ? camera_metadata_section_names[i] : |
| 645 | vendorSections[i - ANDROID_SECTION_COUNT].string(); |
Andreas Gampe | ed6b9df | 2014-11-20 22:02:20 -0800 | [diff] [blame^] | 646 | if (kIsDebug) { |
| 647 | ALOGV("%s: Trying to match against section '%s'", __FUNCTION__, str); |
| 648 | } |
Igor Murashkin | b519cc5 | 2013-07-02 11:23:44 -0700 | [diff] [blame] | 649 | if (strstr(key, str) == key) { // key begins with the section name |
| 650 | size_t strLength = strlen(str); |
| 651 | |
Andreas Gampe | ed6b9df | 2014-11-20 22:02:20 -0800 | [diff] [blame^] | 652 | if (kIsDebug) { |
| 653 | ALOGV("%s: Key begins with section name", __FUNCTION__); |
| 654 | } |
Igor Murashkin | b519cc5 | 2013-07-02 11:23:44 -0700 | [diff] [blame] | 655 | |
| 656 | // section name is the longest we've found so far |
| 657 | if (section == NULL || sectionLength < strLength) { |
| 658 | section = str; |
| 659 | sectionIndex = i; |
| 660 | sectionLength = strLength; |
| 661 | |
Andreas Gampe | ed6b9df | 2014-11-20 22:02:20 -0800 | [diff] [blame^] | 662 | if (kIsDebug) { |
| 663 | ALOGV("%s: Found new best section (%s)", __FUNCTION__, section); |
| 664 | } |
Igor Murashkin | b519cc5 | 2013-07-02 11:23:44 -0700 | [diff] [blame] | 665 | } |
| 666 | } |
| 667 | } |
| 668 | |
Igor Murashkin | b519cc5 | 2013-07-02 11:23:44 -0700 | [diff] [blame] | 669 | // TODO: Make above get_camera_metadata_section_from_name ? |
| 670 | |
| 671 | if (section == NULL) { |
| 672 | jniThrowExceptionFmt(env, "java/lang/IllegalArgumentException", |
| 673 | "Could not find section name for key '%s')", key); |
| 674 | return 0; |
| 675 | } else { |
Dan Albert | 46d8444 | 2014-11-18 16:07:51 -0800 | [diff] [blame] | 676 | ALOGV("%s: Found matched section '%s' (%zu)", |
Igor Murashkin | b519cc5 | 2013-07-02 11:23:44 -0700 | [diff] [blame] | 677 | __FUNCTION__, section, sectionIndex); |
| 678 | } |
| 679 | |
| 680 | // Get the tag name component of the key |
| 681 | const char *keyTagName = key + sectionLength + 1; // x.y.z -> z |
| 682 | if (sectionLength + 1 >= keyLength) { |
| 683 | jniThrowExceptionFmt(env, "java/lang/IllegalArgumentException", |
| 684 | "Key length too short for key '%s')", key); |
Ruben Brunk | 32ef3ae | 2014-02-21 17:40:51 -0800 | [diff] [blame] | 685 | return 0; |
Igor Murashkin | b519cc5 | 2013-07-02 11:23:44 -0700 | [diff] [blame] | 686 | } |
| 687 | |
| 688 | // Match rest of name against the tag names in that section only |
Ruben Brunk | 32ef3ae | 2014-02-21 17:40:51 -0800 | [diff] [blame] | 689 | uint32_t tag = 0; |
| 690 | if (sectionIndex < ANDROID_SECTION_COUNT) { |
| 691 | // Match built-in tags (typically android.*) |
| 692 | uint32_t tagBegin, tagEnd; // [tagBegin, tagEnd) |
| 693 | tagBegin = camera_metadata_section_bounds[sectionIndex][0]; |
| 694 | tagEnd = camera_metadata_section_bounds[sectionIndex][1]; |
Igor Murashkin | b519cc5 | 2013-07-02 11:23:44 -0700 | [diff] [blame] | 695 | |
Ruben Brunk | 32ef3ae | 2014-02-21 17:40:51 -0800 | [diff] [blame] | 696 | for (tag = tagBegin; tag < tagEnd; ++tag) { |
| 697 | const char *tagName = get_camera_metadata_tag_name(tag); |
Igor Murashkin | b519cc5 | 2013-07-02 11:23:44 -0700 | [diff] [blame] | 698 | |
Ruben Brunk | 32ef3ae | 2014-02-21 17:40:51 -0800 | [diff] [blame] | 699 | if (strcmp(keyTagName, tagName) == 0) { |
| 700 | ALOGV("%s: Found matched tag '%s' (%d)", |
| 701 | __FUNCTION__, tagName, tag); |
| 702 | break; |
| 703 | } |
| 704 | } |
| 705 | |
| 706 | if (tag == tagEnd) { |
| 707 | jniThrowExceptionFmt(env, "java/lang/IllegalArgumentException", |
| 708 | "Could not find tag name for key '%s')", key); |
| 709 | return 0; |
| 710 | } |
Ruben Brunk | feb50af | 2014-05-09 19:58:49 -0700 | [diff] [blame] | 711 | } else if (vTags != NULL) { |
Ruben Brunk | 32ef3ae | 2014-02-21 17:40:51 -0800 | [diff] [blame] | 712 | // Match vendor tags (typically com.*) |
| 713 | const String8 sectionName(section); |
| 714 | const String8 tagName(keyTagName); |
| 715 | |
| 716 | status_t res = OK; |
| 717 | if ((res = vTags->lookupTag(tagName, sectionName, &tag)) != OK) { |
| 718 | jniThrowExceptionFmt(env, "java/lang/IllegalArgumentException", |
| 719 | "%s: No vendor tag matches key '%s'", __FUNCTION__, key); |
| 720 | return 0; |
Igor Murashkin | b519cc5 | 2013-07-02 11:23:44 -0700 | [diff] [blame] | 721 | } |
| 722 | } |
| 723 | |
Igor Murashkin | b519cc5 | 2013-07-02 11:23:44 -0700 | [diff] [blame] | 724 | // TODO: Make above get_camera_metadata_tag_from_name ? |
| 725 | |
Igor Murashkin | b519cc5 | 2013-07-02 11:23:44 -0700 | [diff] [blame] | 726 | return tag; |
| 727 | } |
| 728 | |
| 729 | static jint CameraMetadata_getTypeFromTag(JNIEnv *env, jobject thiz, jint tag) { |
| 730 | int tagType = get_camera_metadata_tag_type(tag); |
| 731 | if (tagType == -1) { |
| 732 | jniThrowExceptionFmt(env, "java/lang/IllegalArgumentException", |
| 733 | "Tag (%d) did not have a type", tag); |
| 734 | return -1; |
| 735 | } |
| 736 | |
| 737 | return tagType; |
| 738 | } |
| 739 | |
Ruben Brunk | 85c4388 | 2014-02-21 17:40:51 -0800 | [diff] [blame] | 740 | static jint CameraMetadata_setupGlobalVendorTagDescriptor(JNIEnv *env, jobject thiz) { |
| 741 | const String16 NAME("media.camera"); |
| 742 | sp<ICameraService> cameraService; |
| 743 | status_t err = getService(NAME, /*out*/&cameraService); |
| 744 | |
| 745 | if (err != OK) { |
| 746 | ALOGE("%s: Failed to get camera service, received error %s (%d)", __FUNCTION__, |
| 747 | strerror(-err), err); |
| 748 | return err; |
| 749 | } |
| 750 | |
| 751 | sp<VendorTagDescriptor> desc; |
| 752 | err = cameraService->getCameraVendorTagDescriptor(/*out*/desc); |
| 753 | |
Igor Murashkin | 5614cbe | 2014-03-17 14:00:55 -0700 | [diff] [blame] | 754 | if (err == -EOPNOTSUPP) { |
| 755 | ALOGW("%s: Camera HAL too old; does not support vendor tags", __FUNCTION__); |
| 756 | VendorTagDescriptor::clearGlobalVendorTagDescriptor(); |
| 757 | |
| 758 | return OK; |
| 759 | } else if (err != OK) { |
| 760 | ALOGE("%s: Failed to setup vendor tag descriptors, received error %s (%d)", |
| 761 | __FUNCTION__, strerror(-err), err); |
Ruben Brunk | 85c4388 | 2014-02-21 17:40:51 -0800 | [diff] [blame] | 762 | return err; |
| 763 | } |
| 764 | |
| 765 | err = VendorTagDescriptor::setAsGlobalVendorTagDescriptor(desc); |
| 766 | |
| 767 | return err; |
| 768 | } |
| 769 | |
Igor Murashkin | 7072550 | 2013-06-25 20:27:06 +0000 | [diff] [blame] | 770 | } // extern "C" |