1/* 2 * Copyright 2015 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17//#define LOG_NDEBUG 0 18#define LOG_TAG "ImageWriter_JNI" 19#include "android_media_Utils.h" 20 21#include <utils/Log.h> 22#include <utils/String8.h> 23 24#include <gui/IProducerListener.h> 25#include <gui/Surface.h> 26#include <android_runtime/AndroidRuntime.h> 27#include <android_runtime/android_view_Surface.h> 28#include <camera3.h> 29#include <jni.h> 30#include <JNIHelp.h> 31 32#include <stdint.h> 33#include <inttypes.h> 34 35#define IMAGE_BUFFER_JNI_ID "mNativeBuffer" 36 37// ---------------------------------------------------------------------------- 38 39using namespace android; 40 41static struct { 42 jmethodID postEventFromNative; 43 jfieldID mWriterFormat; 44} gImageWriterClassInfo; 45 46static struct { 47 jfieldID mNativeBuffer; 48 jfieldID mNativeFenceFd; 49 jfieldID mPlanes; 50} gSurfaceImageClassInfo; 51 52static struct { 53 jclass clazz; 54 jmethodID ctor; 55} gSurfacePlaneClassInfo; 56 57// ---------------------------------------------------------------------------- 58 59class JNIImageWriterContext : public BnProducerListener { 60public: 61 JNIImageWriterContext(JNIEnv* env, jobject weakThiz, jclass clazz); 62 63 virtual ~JNIImageWriterContext(); 64 65 // Implementation of IProducerListener, used to notify the ImageWriter that the consumer 66 // has returned a buffer and it is ready for ImageWriter to dequeue. 67 virtual void onBufferReleased(); 68 69 void setProducer(const sp<Surface>& producer) { mProducer = producer; } 70 Surface* getProducer() { return mProducer.get(); } 71 72 void setBufferFormat(int format) { mFormat = format; } 73 int getBufferFormat() { return mFormat; } 74 75 void setBufferWidth(int width) { mWidth = width; } 76 int getBufferWidth() { return mWidth; } 77 78 void setBufferHeight(int height) { mHeight = height; } 79 int getBufferHeight() { return mHeight; } 80 81private: 82 static JNIEnv* getJNIEnv(bool* needsDetach); 83 static void detachJNI(); 84 85 sp<Surface> mProducer; 86 jobject mWeakThiz; 87 jclass mClazz; 88 int mFormat; 89 int mWidth; 90 int mHeight; 91}; 92 93JNIImageWriterContext::JNIImageWriterContext(JNIEnv* env, jobject weakThiz, jclass clazz) : 94 mWeakThiz(env->NewGlobalRef(weakThiz)), 95 mClazz((jclass)env->NewGlobalRef(clazz)), 96 mFormat(0), 97 mWidth(-1), 98 mHeight(-1) { 99} 100 101JNIImageWriterContext::~JNIImageWriterContext() { 102 ALOGV("%s", __FUNCTION__); 103 bool needsDetach = false; 104 JNIEnv* env = getJNIEnv(&needsDetach); 105 if (env != NULL) { 106 env->DeleteGlobalRef(mWeakThiz); 107 env->DeleteGlobalRef(mClazz); 108 } else { 109 ALOGW("leaking JNI object references"); 110 } 111 if (needsDetach) { 112 detachJNI(); 113 } 114 115 mProducer.clear(); 116} 117 118JNIEnv* JNIImageWriterContext::getJNIEnv(bool* needsDetach) { 119 ALOGV("%s", __FUNCTION__); 120 LOG_ALWAYS_FATAL_IF(needsDetach == NULL, "needsDetach is null!!!"); 121 *needsDetach = false; 122 JNIEnv* env = AndroidRuntime::getJNIEnv(); 123 if (env == NULL) { 124 JavaVMAttachArgs args = {JNI_VERSION_1_4, NULL, NULL}; 125 JavaVM* vm = AndroidRuntime::getJavaVM(); 126 int result = vm->AttachCurrentThread(&env, (void*) &args); 127 if (result != JNI_OK) { 128 ALOGE("thread attach failed: %#x", result); 129 return NULL; 130 } 131 *needsDetach = true; 132 } 133 return env; 134} 135 136void JNIImageWriterContext::detachJNI() { 137 ALOGV("%s", __FUNCTION__); 138 JavaVM* vm = AndroidRuntime::getJavaVM(); 139 int result = vm->DetachCurrentThread(); 140 if (result != JNI_OK) { 141 ALOGE("thread detach failed: %#x", result); 142 } 143} 144 145void JNIImageWriterContext::onBufferReleased() { 146 ALOGV("%s: buffer released", __FUNCTION__); 147 bool needsDetach = false; 148 JNIEnv* env = getJNIEnv(&needsDetach); 149 if (env != NULL) { 150 // Detach the buffer every time when a buffer consumption is done, 151 // need let this callback give a BufferItem, then only detach if it was attached to this 152 // Writer. Do the detach unconditionally for opaque format now. see b/19977520 153 if (mFormat == HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED) { 154 sp<Fence> fence; 155 sp<GraphicBuffer> buffer; 156 ALOGV("%s: One buffer is detached", __FUNCTION__); 157 mProducer->detachNextBuffer(&buffer, &fence); 158 } 159 160 env->CallStaticVoidMethod(mClazz, gImageWriterClassInfo.postEventFromNative, mWeakThiz); 161 } else { 162 ALOGW("onBufferReleased event will not posted"); 163 } 164 165 if (needsDetach) { 166 detachJNI(); 167 } 168} 169 170// ---------------------------------------------------------------------------- 171 172extern "C" { 173 174// -------------------------------Private method declarations-------------- 175 176static void Image_setNativeContext(JNIEnv* env, jobject thiz, 177 sp<GraphicBuffer> buffer, int fenceFd); 178static void Image_getNativeContext(JNIEnv* env, jobject thiz, 179 GraphicBuffer** buffer, int* fenceFd); 180static void Image_unlockIfLocked(JNIEnv* env, jobject thiz); 181 182// --------------------------ImageWriter methods--------------------------------------- 183 184static void ImageWriter_classInit(JNIEnv* env, jclass clazz) { 185 ALOGV("%s:", __FUNCTION__); 186 jclass imageClazz = env->FindClass("android/media/ImageWriter$WriterSurfaceImage"); 187 LOG_ALWAYS_FATAL_IF(imageClazz == NULL, 188 "can't find android/media/ImageWriter$WriterSurfaceImage"); 189 gSurfaceImageClassInfo.mNativeBuffer = env->GetFieldID( 190 imageClazz, IMAGE_BUFFER_JNI_ID, "J"); 191 LOG_ALWAYS_FATAL_IF(gSurfaceImageClassInfo.mNativeBuffer == NULL, 192 "can't find android/media/ImageWriter$WriterSurfaceImage.%s", IMAGE_BUFFER_JNI_ID); 193 194 gSurfaceImageClassInfo.mNativeFenceFd = env->GetFieldID( 195 imageClazz, "mNativeFenceFd", "I"); 196 LOG_ALWAYS_FATAL_IF(gSurfaceImageClassInfo.mNativeFenceFd == NULL, 197 "can't find android/media/ImageWriter$WriterSurfaceImage.mNativeFenceFd"); 198 199 gSurfaceImageClassInfo.mPlanes = env->GetFieldID( 200 imageClazz, "mPlanes", "[Landroid/media/ImageWriter$WriterSurfaceImage$SurfacePlane;"); 201 LOG_ALWAYS_FATAL_IF(gSurfaceImageClassInfo.mPlanes == NULL, 202 "can't find android/media/ImageWriter$WriterSurfaceImage.mPlanes"); 203 204 gImageWriterClassInfo.postEventFromNative = env->GetStaticMethodID( 205 clazz, "postEventFromNative", "(Ljava/lang/Object;)V"); 206 LOG_ALWAYS_FATAL_IF(gImageWriterClassInfo.postEventFromNative == NULL, 207 "can't find android/media/ImageWriter.postEventFromNative"); 208 209 gImageWriterClassInfo.mWriterFormat = env->GetFieldID( 210 clazz, "mWriterFormat", "I"); 211 LOG_ALWAYS_FATAL_IF(gImageWriterClassInfo.mWriterFormat == NULL, 212 "can't find android/media/ImageWriter.mWriterFormat"); 213 214 jclass planeClazz = env->FindClass("android/media/ImageWriter$WriterSurfaceImage$SurfacePlane"); 215 LOG_ALWAYS_FATAL_IF(planeClazz == NULL, "Can not find SurfacePlane class"); 216 // FindClass only gives a local reference of jclass object. 217 gSurfacePlaneClassInfo.clazz = (jclass) env->NewGlobalRef(planeClazz); 218 gSurfacePlaneClassInfo.ctor = env->GetMethodID(gSurfacePlaneClassInfo.clazz, "<init>", 219 "(Landroid/media/ImageWriter$WriterSurfaceImage;IILjava/nio/ByteBuffer;)V"); 220 LOG_ALWAYS_FATAL_IF(gSurfacePlaneClassInfo.ctor == NULL, 221 "Can not find SurfacePlane constructor"); 222} 223 224static jlong ImageWriter_init(JNIEnv* env, jobject thiz, jobject weakThiz, jobject jsurface, 225 jint maxImages) { 226 status_t res; 227 228 ALOGV("%s: maxImages:%d", __FUNCTION__, maxImages); 229 230 sp<Surface> surface(android_view_Surface_getSurface(env, jsurface)); 231 if (surface == NULL) { 232 jniThrowException(env, 233 "java/lang/IllegalArgumentException", 234 "The surface has been released"); 235 return 0; 236 } 237 sp<IGraphicBufferProducer> bufferProducer = surface->getIGraphicBufferProducer(); 238 239 jclass clazz = env->GetObjectClass(thiz); 240 if (clazz == NULL) { 241 jniThrowRuntimeException(env, "Can't find android/graphics/ImageWriter"); 242 return 0; 243 } 244 sp<JNIImageWriterContext> ctx(new JNIImageWriterContext(env, weakThiz, clazz)); 245 246 sp<Surface> producer = new Surface(bufferProducer, /*controlledByApp*/false); 247 ctx->setProducer(producer); 248 /** 249 * NATIVE_WINDOW_API_CPU isn't a good choice here, as it makes the bufferQueue not connectable 250 * after disconnect. MEDIA or CAMERA are treated the same internally. The producer listener 251 * will be cleared after disconnect call. 252 */ 253 producer->connect(/*api*/NATIVE_WINDOW_API_CAMERA, /*listener*/ctx); 254 jlong nativeCtx = reinterpret_cast<jlong>(ctx.get()); 255 256 // Get the dimension and format of the producer. 257 sp<ANativeWindow> anw = producer; 258 int32_t width, height, format; 259 if ((res = anw->query(anw.get(), NATIVE_WINDOW_WIDTH, &width)) != OK) { 260 ALOGE("%s: Query Surface width failed: %s (%d)", __FUNCTION__, strerror(-res), res); 261 jniThrowRuntimeException(env, "Failed to query Surface width"); 262 return 0; 263 } 264 ctx->setBufferWidth(width); 265 266 if ((res = anw->query(anw.get(), NATIVE_WINDOW_HEIGHT, &height)) != OK) { 267 ALOGE("%s: Query Surface height failed: %s (%d)", __FUNCTION__, strerror(-res), res); 268 jniThrowRuntimeException(env, "Failed to query Surface height"); 269 return 0; 270 } 271 ctx->setBufferHeight(height); 272 273 if ((res = anw->query(anw.get(), NATIVE_WINDOW_FORMAT, &format)) != OK) { 274 ALOGE("%s: Query Surface format failed: %s (%d)", __FUNCTION__, strerror(-res), res); 275 jniThrowRuntimeException(env, "Failed to query Surface format"); 276 return 0; 277 } 278 ctx->setBufferFormat(format); 279 env->SetIntField(thiz, gImageWriterClassInfo.mWriterFormat, reinterpret_cast<jint>(format)); 280 281 282 if (!isFormatOpaque(format)) { 283 res = native_window_set_usage(anw.get(), GRALLOC_USAGE_SW_WRITE_OFTEN); 284 if (res != OK) { 285 ALOGE("%s: Configure usage %08x for format %08x failed: %s (%d)", 286 __FUNCTION__, static_cast<unsigned int>(GRALLOC_USAGE_SW_WRITE_OFTEN), 287 format, strerror(-res), res); 288 jniThrowRuntimeException(env, "Failed to SW_WRITE_OFTEN configure usage"); 289 return 0; 290 } 291 } 292 293 int minUndequeuedBufferCount = 0; 294 res = anw->query(anw.get(), 295 NATIVE_WINDOW_MIN_UNDEQUEUED_BUFFERS, &minUndequeuedBufferCount); 296 if (res != OK) { 297 ALOGE("%s: Query producer undequeued buffer count failed: %s (%d)", 298 __FUNCTION__, strerror(-res), res); 299 jniThrowRuntimeException(env, "Query producer undequeued buffer count failed"); 300 return 0; 301 } 302 303 size_t totalBufferCount = maxImages + minUndequeuedBufferCount; 304 res = native_window_set_buffer_count(anw.get(), totalBufferCount); 305 if (res != OK) { 306 ALOGE("%s: Set buffer count failed: %s (%d)", __FUNCTION__, strerror(-res), res); 307 jniThrowRuntimeException(env, "Set buffer count failed"); 308 return 0; 309 } 310 311 if (ctx != 0) { 312 ctx->incStrong((void*)ImageWriter_init); 313 } 314 return nativeCtx; 315} 316 317static void ImageWriter_dequeueImage(JNIEnv* env, jobject thiz, jlong nativeCtx, jobject image) { 318 ALOGV("%s", __FUNCTION__); 319 JNIImageWriterContext* const ctx = reinterpret_cast<JNIImageWriterContext *>(nativeCtx); 320 if (ctx == NULL || thiz == NULL) { 321 jniThrowException(env, "java/lang/IllegalStateException", 322 "ImageWriterContext is not initialized"); 323 return; 324 } 325 326 sp<ANativeWindow> anw = ctx->getProducer(); 327 android_native_buffer_t *anb = NULL; 328 int fenceFd = -1; 329 status_t res = anw->dequeueBuffer(anw.get(), &anb, &fenceFd); 330 if (res != OK) { 331 ALOGE("%s: Dequeue buffer failed: %s (%d)", __FUNCTION__, strerror(-res), res); 332 switch (res) { 333 case NO_INIT: 334 jniThrowException(env, "java/lang/IllegalStateException", 335 "Surface has been abandoned"); 336 break; 337 default: 338 // TODO: handle other error cases here. 339 jniThrowRuntimeException(env, "dequeue buffer failed"); 340 } 341 return; 342 } 343 // New GraphicBuffer object doesn't own the handle, thus the native buffer 344 // won't be freed when this object is destroyed. 345 sp<GraphicBuffer> buffer(new GraphicBuffer(anb, /*keepOwnership*/false)); 346 347 // Note that: 348 // 1. No need to lock buffer now, will only lock it when the first getPlanes() is called. 349 // 2. Fence will be saved to mNativeFenceFd, and will consumed by lock/queue/cancel buffer 350 // later. 351 // 3. need use lockAsync here, as it will handle the dequeued fence for us automatically. 352 353 // Finally, set the native info into image object. 354 Image_setNativeContext(env, image, buffer, fenceFd); 355} 356 357static void ImageWriter_close(JNIEnv* env, jobject thiz, jlong nativeCtx) { 358 ALOGV("%s:", __FUNCTION__); 359 JNIImageWriterContext* const ctx = reinterpret_cast<JNIImageWriterContext *>(nativeCtx); 360 if (ctx == NULL || thiz == NULL) { 361 // ImageWriter is already closed. 362 return; 363 } 364 365 ANativeWindow* producer = ctx->getProducer(); 366 if (producer != NULL) { 367 /** 368 * NATIVE_WINDOW_API_CPU isn't a good choice here, as it makes the bufferQueue not 369 * connectable after disconnect. MEDIA or CAMERA are treated the same internally. 370 * The producer listener will be cleared after disconnect call. 371 */ 372 status_t res = native_window_api_disconnect(producer, /*api*/NATIVE_WINDOW_API_CAMERA); 373 /** 374 * This is not an error. if client calling process dies, the window will 375 * also die and all calls to it will return DEAD_OBJECT, thus it's already 376 * "disconnected" 377 */ 378 if (res == DEAD_OBJECT) { 379 ALOGW("%s: While disconnecting ImageWriter from native window, the" 380 " native window died already", __FUNCTION__); 381 } else if (res != OK) { 382 ALOGE("%s: native window disconnect failed: %s (%d)", 383 __FUNCTION__, strerror(-res), res); 384 jniThrowRuntimeException(env, "Native window disconnect failed"); 385 return; 386 } 387 } 388 389 ctx->decStrong((void*)ImageWriter_init); 390} 391 392static void ImageWriter_cancelImage(JNIEnv* env, jobject thiz, jlong nativeCtx, jobject image) { 393 ALOGV("%s", __FUNCTION__); 394 JNIImageWriterContext* const ctx = reinterpret_cast<JNIImageWriterContext *>(nativeCtx); 395 if (ctx == NULL || thiz == NULL) { 396 ALOGW("ImageWriter#close called before Image#close, consider calling Image#close first"); 397 return; 398 } 399 400 sp<ANativeWindow> anw = ctx->getProducer(); 401 402 GraphicBuffer *buffer = NULL; 403 int fenceFd = -1; 404 Image_getNativeContext(env, image, &buffer, &fenceFd); 405 if (buffer == NULL) { 406 // Cancel an already cancelled image is harmless. 407 return; 408 } 409 410 // Unlock the image if it was locked 411 Image_unlockIfLocked(env, image); 412 413 anw->cancelBuffer(anw.get(), buffer, fenceFd); 414 415 Image_setNativeContext(env, image, NULL, -1); 416} 417 418static void ImageWriter_queueImage(JNIEnv* env, jobject thiz, jlong nativeCtx, jobject image, 419 jlong timestampNs, jint left, jint top, jint right, jint bottom) { 420 ALOGV("%s", __FUNCTION__); 421 JNIImageWriterContext* const ctx = reinterpret_cast<JNIImageWriterContext *>(nativeCtx); 422 if (ctx == NULL || thiz == NULL) { 423 jniThrowException(env, "java/lang/IllegalStateException", 424 "ImageWriterContext is not initialized"); 425 return; 426 } 427 428 status_t res = OK; 429 sp<ANativeWindow> anw = ctx->getProducer(); 430 431 GraphicBuffer *buffer = NULL; 432 int fenceFd = -1; 433 Image_getNativeContext(env, image, &buffer, &fenceFd); 434 if (buffer == NULL) { 435 jniThrowException(env, "java/lang/IllegalStateException", 436 "Image is not initialized"); 437 return; 438 } 439 440 // Unlock image if it was locked. 441 Image_unlockIfLocked(env, image); 442 443 // Set timestamp 444 ALOGV("timestamp to be queued: %" PRId64, timestampNs); 445 res = native_window_set_buffers_timestamp(anw.get(), timestampNs); 446 if (res != OK) { 447 jniThrowRuntimeException(env, "Set timestamp failed"); 448 return; 449 } 450 451 // Set crop 452 android_native_rect_t cropRect; 453 cropRect.left = left; 454 cropRect.top = top; 455 cropRect.right = right; 456 cropRect.bottom = bottom; 457 res = native_window_set_crop(anw.get(), &cropRect); 458 if (res != OK) { 459 jniThrowRuntimeException(env, "Set crop rect failed"); 460 return; 461 } 462 463 // Finally, queue input buffer 464 res = anw->queueBuffer(anw.get(), buffer, fenceFd); 465 if (res != OK) { 466 ALOGE("%s: Queue buffer failed: %s (%d)", __FUNCTION__, strerror(-res), res); 467 switch (res) { 468 case NO_INIT: 469 jniThrowException(env, "java/lang/IllegalStateException", 470 "Surface has been abandoned"); 471 break; 472 default: 473 // TODO: handle other error cases here. 474 jniThrowRuntimeException(env, "Queue input buffer failed"); 475 } 476 return; 477 } 478 479 // Clear the image native context: end of this image's lifecycle in public API. 480 Image_setNativeContext(env, image, NULL, -1); 481} 482 483static jint ImageWriter_attachAndQueueImage(JNIEnv* env, jobject thiz, jlong nativeCtx, 484 jlong nativeBuffer, jint imageFormat, jlong timestampNs, jint left, jint top, 485 jint right, jint bottom) { 486 ALOGV("%s", __FUNCTION__); 487 JNIImageWriterContext* const ctx = reinterpret_cast<JNIImageWriterContext *>(nativeCtx); 488 if (ctx == NULL || thiz == NULL) { 489 jniThrowException(env, "java/lang/IllegalStateException", 490 "ImageWriterContext is not initialized"); 491 return -1; 492 } 493 494 sp<Surface> surface = ctx->getProducer(); 495 status_t res = OK; 496 if (!isFormatOpaque(imageFormat)) { 497 // TODO: need implement, see b/19962027 498 jniThrowRuntimeException(env, 499 "nativeAttachImage for non-opaque image is not implement yet!!!"); 500 return -1; 501 } 502 503 if (!isFormatOpaque(ctx->getBufferFormat())) { 504 jniThrowException(env, "java/lang/IllegalStateException", 505 "Trying to attach an opaque image into a non-opaque ImageWriter"); 506 return -1; 507 } 508 509 // Image is guaranteed to be from ImageReader at this point, so it is safe to 510 // cast to BufferItem pointer. 511 BufferItem* opaqueBuffer = reinterpret_cast<BufferItem*>(nativeBuffer); 512 if (opaqueBuffer == NULL) { 513 jniThrowException(env, "java/lang/IllegalStateException", 514 "Image is not initialized or already closed"); 515 return -1; 516 } 517 518 // Step 1. Attach Image 519 res = surface->attachBuffer(opaqueBuffer->mGraphicBuffer.get()); 520 if (res != OK) { 521 ALOGE("Attach image failed: %s (%d)", strerror(-res), res); 522 switch (res) { 523 case NO_INIT: 524 jniThrowException(env, "java/lang/IllegalStateException", 525 "Surface has been abandoned"); 526 break; 527 default: 528 // TODO: handle other error cases here. 529 jniThrowRuntimeException(env, "nativeAttachImage failed!!!"); 530 } 531 return res; 532 } 533 sp < ANativeWindow > anw = surface; 534 535 // Step 2. Set timestamp and crop. Note that we do not need unlock the image because 536 // it was not locked. 537 ALOGV("timestamp to be queued: %" PRId64, timestampNs); 538 res = native_window_set_buffers_timestamp(anw.get(), timestampNs); 539 if (res != OK) { 540 jniThrowRuntimeException(env, "Set timestamp failed"); 541 return res; 542 } 543 544 android_native_rect_t cropRect; 545 cropRect.left = left; 546 cropRect.top = top; 547 cropRect.right = right; 548 cropRect.bottom = bottom; 549 res = native_window_set_crop(anw.get(), &cropRect); 550 if (res != OK) { 551 jniThrowRuntimeException(env, "Set crop rect failed"); 552 return res; 553 } 554 555 // Step 3. Queue Image. 556 res = anw->queueBuffer(anw.get(), opaqueBuffer->mGraphicBuffer.get(), /*fenceFd*/ 557 -1); 558 if (res != OK) { 559 ALOGE("%s: Queue buffer failed: %s (%d)", __FUNCTION__, strerror(-res), res); 560 switch (res) { 561 case NO_INIT: 562 jniThrowException(env, "java/lang/IllegalStateException", 563 "Surface has been abandoned"); 564 break; 565 default: 566 // TODO: handle other error cases here. 567 jniThrowRuntimeException(env, "Queue input buffer failed"); 568 } 569 return res; 570 } 571 572 // Do not set the image native context. Since it would overwrite the existing native context 573 // of the image that is from ImageReader, the subsequent image close will run into issues. 574 575 return res; 576} 577 578// --------------------------Image methods--------------------------------------- 579 580static void Image_getNativeContext(JNIEnv* env, jobject thiz, 581 GraphicBuffer** buffer, int* fenceFd) { 582 ALOGV("%s", __FUNCTION__); 583 if (buffer != NULL) { 584 GraphicBuffer *gb = reinterpret_cast<GraphicBuffer *> 585 (env->GetLongField(thiz, gSurfaceImageClassInfo.mNativeBuffer)); 586 *buffer = gb; 587 } 588 589 if (fenceFd != NULL) { 590 *fenceFd = reinterpret_cast<jint>(env->GetIntField( 591 thiz, gSurfaceImageClassInfo.mNativeFenceFd)); 592 } 593} 594 595static void Image_setNativeContext(JNIEnv* env, jobject thiz, 596 sp<GraphicBuffer> buffer, int fenceFd) { 597 ALOGV("%s:", __FUNCTION__); 598 GraphicBuffer* p = NULL; 599 Image_getNativeContext(env, thiz, &p, /*fenceFd*/NULL); 600 if (buffer != 0) { 601 buffer->incStrong((void*)Image_setNativeContext); 602 } 603 if (p) { 604 p->decStrong((void*)Image_setNativeContext); 605 } 606 env->SetLongField(thiz, gSurfaceImageClassInfo.mNativeBuffer, 607 reinterpret_cast<jlong>(buffer.get())); 608 609 env->SetIntField(thiz, gSurfaceImageClassInfo.mNativeFenceFd, reinterpret_cast<jint>(fenceFd)); 610} 611 612static void Image_unlockIfLocked(JNIEnv* env, jobject thiz) { 613 ALOGV("%s", __FUNCTION__); 614 GraphicBuffer* buffer; 615 Image_getNativeContext(env, thiz, &buffer, NULL); 616 if (buffer == NULL) { 617 jniThrowException(env, "java/lang/IllegalStateException", 618 "Image is not initialized"); 619 return; 620 } 621 622 // Is locked? 623 bool isLocked = false; 624 jobject planes = NULL; 625 if (!isFormatOpaque(buffer->getPixelFormat())) { 626 planes = env->GetObjectField(thiz, gSurfaceImageClassInfo.mPlanes); 627 } 628 isLocked = (planes != NULL); 629 if (isLocked) { 630 // no need to use fence here, as we it will be consumed by either cancel or queue buffer. 631 status_t res = buffer->unlock(); 632 if (res != OK) { 633 jniThrowRuntimeException(env, "unlock buffer failed"); 634 } 635 ALOGV("Successfully unlocked the image"); 636 } 637} 638 639static jint Image_getWidth(JNIEnv* env, jobject thiz) { 640 ALOGV("%s", __FUNCTION__); 641 GraphicBuffer* buffer; 642 Image_getNativeContext(env, thiz, &buffer, NULL); 643 if (buffer == NULL) { 644 jniThrowException(env, "java/lang/IllegalStateException", 645 "Image is not initialized"); 646 return -1; 647 } 648 649 return buffer->getWidth(); 650} 651 652static jint Image_getHeight(JNIEnv* env, jobject thiz) { 653 ALOGV("%s", __FUNCTION__); 654 GraphicBuffer* buffer; 655 Image_getNativeContext(env, thiz, &buffer, NULL); 656 if (buffer == NULL) { 657 jniThrowException(env, "java/lang/IllegalStateException", 658 "Image is not initialized"); 659 return -1; 660 } 661 662 return buffer->getHeight(); 663} 664 665static jint Image_getFormat(JNIEnv* env, jobject thiz) { 666 ALOGV("%s", __FUNCTION__); 667 GraphicBuffer* buffer; 668 Image_getNativeContext(env, thiz, &buffer, NULL); 669 if (buffer == NULL) { 670 jniThrowException(env, "java/lang/IllegalStateException", 671 "Image is not initialized"); 672 return 0; 673 } 674 675 // ImageWriter doesn't support data space yet, assuming it is unknown. 676 PublicFormat publicFmt = android_view_Surface_mapHalFormatDataspaceToPublicFormat( 677 buffer->getPixelFormat(), HAL_DATASPACE_UNKNOWN); 678 return static_cast<jint>(publicFmt); 679} 680 681static void Image_setFenceFd(JNIEnv* env, jobject thiz, int fenceFd) { 682 ALOGV("%s:", __FUNCTION__); 683 env->SetIntField(thiz, gSurfaceImageClassInfo.mNativeFenceFd, reinterpret_cast<jint>(fenceFd)); 684} 685 686static void Image_getLockedImage(JNIEnv* env, jobject thiz, LockedImage *image) { 687 ALOGV("%s", __FUNCTION__); 688 GraphicBuffer* buffer; 689 int fenceFd = -1; 690 Image_getNativeContext(env, thiz, &buffer, &fenceFd); 691 if (buffer == NULL) { 692 jniThrowException(env, "java/lang/IllegalStateException", 693 "Image is not initialized"); 694 return; 695 } 696 697 // ImageWriter doesn't use crop by itself, app sets it, use the no crop version. 698 const Rect noCrop(buffer->width, buffer->height); 699 status_t res = lockImageFromBuffer( 700 buffer, GRALLOC_USAGE_SW_WRITE_OFTEN, noCrop, fenceFd, image); 701 // Clear the fenceFd as it is already consumed by lock call. 702 Image_setFenceFd(env, thiz, /*fenceFd*/-1); 703 if (res != OK) { 704 jniThrowExceptionFmt(env, "java/lang/RuntimeException", 705 "lock buffer failed for format 0x%x", 706 buffer->getPixelFormat()); 707 return; 708 } 709 710 ALOGV("%s: Successfully locked the image", __FUNCTION__); 711 // crop, transform, scalingMode, timestamp, and frameNumber should be set by producer, 712 // and we don't set them here. 713} 714 715static void Image_getLockedImageInfo(JNIEnv* env, LockedImage* buffer, int idx, 716 int32_t writerFormat, uint8_t **base, uint32_t *size, int *pixelStride, int *rowStride) { 717 ALOGV("%s", __FUNCTION__); 718 719 status_t res = getLockedImageInfo(buffer, idx, writerFormat, base, size, 720 pixelStride, rowStride); 721 if (res != OK) { 722 jniThrowExceptionFmt(env, "java/lang/UnsupportedOperationException", 723 "Pixel format: 0x%x is unsupported", buffer->flexFormat); 724 } 725} 726 727static jobjectArray Image_createSurfacePlanes(JNIEnv* env, jobject thiz, 728 int numPlanes, int writerFormat) { 729 ALOGV("%s: create SurfacePlane array with size %d", __FUNCTION__, numPlanes); 730 int rowStride, pixelStride; 731 uint8_t *pData; 732 uint32_t dataSize; 733 jobject byteBuffer; 734 735 int format = Image_getFormat(env, thiz); 736 if (isFormatOpaque(format) && numPlanes > 0) { 737 String8 msg; 738 msg.appendFormat("Format 0x%x is opaque, thus not writable, the number of planes (%d)" 739 " must be 0", format, numPlanes); 740 jniThrowException(env, "java/lang/IllegalArgumentException", msg.string()); 741 return NULL; 742 } 743 744 jobjectArray surfacePlanes = env->NewObjectArray(numPlanes, gSurfacePlaneClassInfo.clazz, 745 /*initial_element*/NULL); 746 if (surfacePlanes == NULL) { 747 jniThrowRuntimeException(env, "Failed to create SurfacePlane arrays," 748 " probably out of memory"); 749 return NULL; 750 } 751 if (isFormatOpaque(format)) { 752 return surfacePlanes; 753 } 754 755 // Buildup buffer info: rowStride, pixelStride and byteBuffers. 756 LockedImage lockedImg = LockedImage(); 757 Image_getLockedImage(env, thiz, &lockedImg); 758 759 // Create all SurfacePlanes 760 PublicFormat publicWriterFormat = static_cast<PublicFormat>(writerFormat); 761 writerFormat = android_view_Surface_mapPublicFormatToHalFormat(publicWriterFormat); 762 for (int i = 0; i < numPlanes; i++) { 763 Image_getLockedImageInfo(env, &lockedImg, i, writerFormat, 764 &pData, &dataSize, &pixelStride, &rowStride); 765 byteBuffer = env->NewDirectByteBuffer(pData, dataSize); 766 if ((byteBuffer == NULL) && (env->ExceptionCheck() == false)) { 767 jniThrowException(env, "java/lang/IllegalStateException", 768 "Failed to allocate ByteBuffer"); 769 return NULL; 770 } 771 772 // Finally, create this SurfacePlane. 773 jobject surfacePlane = env->NewObject(gSurfacePlaneClassInfo.clazz, 774 gSurfacePlaneClassInfo.ctor, thiz, rowStride, pixelStride, byteBuffer); 775 env->SetObjectArrayElement(surfacePlanes, i, surfacePlane); 776 } 777 778 return surfacePlanes; 779} 780 781} // extern "C" 782 783// ---------------------------------------------------------------------------- 784 785static JNINativeMethod gImageWriterMethods[] = { 786 {"nativeClassInit", "()V", (void*)ImageWriter_classInit }, 787 {"nativeInit", "(Ljava/lang/Object;Landroid/view/Surface;I)J", 788 (void*)ImageWriter_init }, 789 {"nativeClose", "(J)V", (void*)ImageWriter_close }, 790 {"nativeAttachAndQueueImage", "(JJIJIIII)I", (void*)ImageWriter_attachAndQueueImage }, 791 {"nativeDequeueInputImage", "(JLandroid/media/Image;)V", (void*)ImageWriter_dequeueImage }, 792 {"nativeQueueInputImage", "(JLandroid/media/Image;JIIII)V", (void*)ImageWriter_queueImage }, 793 {"cancelImage", "(JLandroid/media/Image;)V", (void*)ImageWriter_cancelImage }, 794}; 795 796static JNINativeMethod gImageMethods[] = { 797 {"nativeCreatePlanes", "(II)[Landroid/media/ImageWriter$WriterSurfaceImage$SurfacePlane;", 798 (void*)Image_createSurfacePlanes }, 799 {"nativeGetWidth", "()I", (void*)Image_getWidth }, 800 {"nativeGetHeight", "()I", (void*)Image_getHeight }, 801 {"nativeGetFormat", "()I", (void*)Image_getFormat }, 802}; 803 804int register_android_media_ImageWriter(JNIEnv *env) { 805 806 int ret1 = AndroidRuntime::registerNativeMethods(env, 807 "android/media/ImageWriter", gImageWriterMethods, NELEM(gImageWriterMethods)); 808 809 int ret2 = AndroidRuntime::registerNativeMethods(env, 810 "android/media/ImageWriter$WriterSurfaceImage", gImageMethods, NELEM(gImageMethods)); 811 812 return (ret1 || ret2); 813} 814 815