android_media_ImageWriter.cpp revision d1cbc684053986c6c9efc6220bd79d654932b3d0
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 <utils/Log.h> 20#include <utils/String8.h> 21 22#include <gui/IProducerListener.h> 23#include <gui/Surface.h> 24#include <gui/CpuConsumer.h> 25#include <android_runtime/AndroidRuntime.h> 26#include <android_runtime/android_view_Surface.h> 27#include <camera3.h> 28 29#include <jni.h> 30#include <JNIHelp.h> 31 32#include <stdint.h> 33#include <inttypes.h> 34 35#define ALIGN(x, mask) ( ((x) + (mask) - 1) & ~((mask) - 1) ) 36 37#define IMAGE_BUFFER_JNI_ID "mNativeBuffer" 38 39// ---------------------------------------------------------------------------- 40 41using namespace android; 42 43enum { 44 IMAGE_WRITER_MAX_NUM_PLANES = 3, 45}; 46 47static struct { 48 jmethodID postEventFromNative; 49 jfieldID mWriterFormat; 50} gImageWriterClassInfo; 51 52static struct { 53 jfieldID mNativeBuffer; 54 jfieldID mNativeFenceFd; 55 jfieldID mPlanes; 56} gSurfaceImageClassInfo; 57 58static struct { 59 jclass clazz; 60 jmethodID ctor; 61} gSurfacePlaneClassInfo; 62 63typedef CpuConsumer::LockedBuffer LockedImage; 64 65// ---------------------------------------------------------------------------- 66 67class JNIImageWriterContext : public BnProducerListener { 68public: 69 JNIImageWriterContext(JNIEnv* env, jobject weakThiz, jclass clazz); 70 71 virtual ~JNIImageWriterContext(); 72 73 // Implementation of IProducerListener, used to notify the ImageWriter that the consumer 74 // has returned a buffer and it is ready for ImageWriter to dequeue. 75 virtual void onBufferReleased(); 76 77 void setProducer(const sp<ANativeWindow>& producer) { mProducer = producer; } 78 ANativeWindow* getProducer() { return mProducer.get(); } 79 80 void setBufferFormat(int format) { mFormat = format; } 81 int getBufferFormat() { return mFormat; } 82 83 void setBufferWidth(int width) { mWidth = width; } 84 int getBufferWidth() { return mWidth; } 85 86 void setBufferHeight(int height) { mHeight = height; } 87 int getBufferHeight() { return mHeight; } 88 89private: 90 static JNIEnv* getJNIEnv(bool* needsDetach); 91 static void detachJNI(); 92 93 sp<ANativeWindow> mProducer; 94 jobject mWeakThiz; 95 jclass mClazz; 96 int mFormat; 97 int mWidth; 98 int mHeight; 99}; 100 101JNIImageWriterContext::JNIImageWriterContext(JNIEnv* env, jobject weakThiz, jclass clazz) : 102 mWeakThiz(env->NewGlobalRef(weakThiz)), 103 mClazz((jclass)env->NewGlobalRef(clazz)), 104 mFormat(0), 105 mWidth(-1), 106 mHeight(-1) { 107} 108 109JNIImageWriterContext::~JNIImageWriterContext() { 110 ALOGV("%s", __FUNCTION__); 111 bool needsDetach = false; 112 JNIEnv* env = getJNIEnv(&needsDetach); 113 if (env != NULL) { 114 env->DeleteGlobalRef(mWeakThiz); 115 env->DeleteGlobalRef(mClazz); 116 } else { 117 ALOGW("leaking JNI object references"); 118 } 119 if (needsDetach) { 120 detachJNI(); 121 } 122 123 mProducer.clear(); 124} 125 126JNIEnv* JNIImageWriterContext::getJNIEnv(bool* needsDetach) { 127 ALOGV("%s", __FUNCTION__); 128 LOG_ALWAYS_FATAL_IF(needsDetach == NULL, "needsDetach is null!!!"); 129 *needsDetach = false; 130 JNIEnv* env = AndroidRuntime::getJNIEnv(); 131 if (env == NULL) { 132 JavaVMAttachArgs args = {JNI_VERSION_1_4, NULL, NULL}; 133 JavaVM* vm = AndroidRuntime::getJavaVM(); 134 int result = vm->AttachCurrentThread(&env, (void*) &args); 135 if (result != JNI_OK) { 136 ALOGE("thread attach failed: %#x", result); 137 return NULL; 138 } 139 *needsDetach = true; 140 } 141 return env; 142} 143 144void JNIImageWriterContext::detachJNI() { 145 ALOGV("%s", __FUNCTION__); 146 JavaVM* vm = AndroidRuntime::getJavaVM(); 147 int result = vm->DetachCurrentThread(); 148 if (result != JNI_OK) { 149 ALOGE("thread detach failed: %#x", result); 150 } 151} 152 153void JNIImageWriterContext::onBufferReleased() { 154 ALOGV("%s: buffer released", __FUNCTION__); 155 bool needsDetach = false; 156 JNIEnv* env = getJNIEnv(&needsDetach); 157 if (env != NULL) { 158 env->CallStaticVoidMethod(mClazz, gImageWriterClassInfo.postEventFromNative, mWeakThiz); 159 } else { 160 ALOGW("onBufferReleased event will not posted"); 161 } 162 if (needsDetach) { 163 detachJNI(); 164 } 165} 166 167// ---------------------------------------------------------------------------- 168 169extern "C" { 170 171// -------------------------------Private method declarations-------------- 172 173static bool isWritable(int format); 174static bool isPossiblyYUV(PixelFormat format); 175static void Image_setNativeContext(JNIEnv* env, jobject thiz, 176 sp<GraphicBuffer> buffer, int fenceFd); 177static void Image_getNativeContext(JNIEnv* env, jobject thiz, 178 GraphicBuffer** buffer, int* fenceFd); 179static void Image_unlockIfLocked(JNIEnv* env, jobject thiz); 180 181// --------------------------ImageWriter methods--------------------------------------- 182 183static void ImageWriter_classInit(JNIEnv* env, jclass clazz) { 184 ALOGV("%s:", __FUNCTION__); 185 jclass imageClazz = env->FindClass("android/media/ImageWriter$WriterSurfaceImage"); 186 LOG_ALWAYS_FATAL_IF(imageClazz == NULL, 187 "can't find android/media/ImageWriter$WriterSurfaceImage"); 188 gSurfaceImageClassInfo.mNativeBuffer = env->GetFieldID( 189 imageClazz, IMAGE_BUFFER_JNI_ID, "J"); 190 LOG_ALWAYS_FATAL_IF(gSurfaceImageClassInfo.mNativeBuffer == NULL, 191 "can't find android/media/ImageWriter$WriterSurfaceImage.%s", IMAGE_BUFFER_JNI_ID); 192 193 gSurfaceImageClassInfo.mNativeFenceFd = env->GetFieldID( 194 imageClazz, "mNativeFenceFd", "I"); 195 LOG_ALWAYS_FATAL_IF(gSurfaceImageClassInfo.mNativeFenceFd == NULL, 196 "can't find android/media/ImageWriter$WriterSurfaceImage.mNativeFenceFd"); 197 198 gSurfaceImageClassInfo.mPlanes = env->GetFieldID( 199 imageClazz, "mPlanes", "[Landroid/media/ImageWriter$WriterSurfaceImage$SurfacePlane;"); 200 LOG_ALWAYS_FATAL_IF(gSurfaceImageClassInfo.mPlanes == NULL, 201 "can't find android/media/ImageWriter$WriterSurfaceImage.mPlanes"); 202 203 gImageWriterClassInfo.postEventFromNative = env->GetStaticMethodID( 204 clazz, "postEventFromNative", "(Ljava/lang/Object;)V"); 205 LOG_ALWAYS_FATAL_IF(gImageWriterClassInfo.postEventFromNative == NULL, 206 "can't find android/media/ImageWriter.postEventFromNative"); 207 208 gImageWriterClassInfo.mWriterFormat = env->GetFieldID( 209 clazz, "mWriterFormat", "I"); 210 LOG_ALWAYS_FATAL_IF(gImageWriterClassInfo.mWriterFormat == NULL, 211 "can't find android/media/ImageWriter.mWriterFormat"); 212 213 jclass planeClazz = env->FindClass("android/media/ImageWriter$WriterSurfaceImage$SurfacePlane"); 214 LOG_ALWAYS_FATAL_IF(planeClazz == NULL, "Can not find SurfacePlane class"); 215 // FindClass only gives a local reference of jclass object. 216 gSurfacePlaneClassInfo.clazz = (jclass) env->NewGlobalRef(planeClazz); 217 gSurfacePlaneClassInfo.ctor = env->GetMethodID(gSurfacePlaneClassInfo.clazz, "<init>", 218 "(Landroid/media/ImageWriter$WriterSurfaceImage;IILjava/nio/ByteBuffer;)V"); 219 LOG_ALWAYS_FATAL_IF(gSurfacePlaneClassInfo.ctor == NULL, 220 "Can not find SurfacePlane constructor"); 221} 222 223static jlong ImageWriter_init(JNIEnv* env, jobject thiz, jobject weakThiz, jobject jsurface, 224 jint maxImages) { 225 status_t res; 226 227 ALOGV("%s: maxImages:%d", __FUNCTION__, maxImages); 228 229 sp<Surface> surface(android_view_Surface_getSurface(env, jsurface)); 230 if (surface == NULL) { 231 jniThrowException(env, 232 "java/lang/IllegalArgumentException", 233 "The surface has been released"); 234 return 0; 235 } 236 sp<IGraphicBufferProducer> bufferProducer = surface->getIGraphicBufferProducer(); 237 238 jclass clazz = env->GetObjectClass(thiz); 239 if (clazz == NULL) { 240 jniThrowRuntimeException(env, "Can't find android/graphics/ImageWriter"); 241 return 0; 242 } 243 sp<JNIImageWriterContext> ctx(new JNIImageWriterContext(env, weakThiz, clazz)); 244 245 sp<Surface> producer = new Surface(bufferProducer, /*controlledByApp*/false); 246 ctx->setProducer(producer); 247 /** 248 * NATIVE_WINDOW_API_CPU isn't a good choice here, as it makes the bufferQueue not connectable 249 * after disconnect. MEDIA or CAMERA are treated the same internally. The producer listener 250 * will be cleared after disconnect call. 251 */ 252 producer->connect(/*api*/NATIVE_WINDOW_API_CAMERA, /*listener*/ctx); 253 jlong nativeCtx = reinterpret_cast<jlong>(ctx.get()); 254 255 // Get the dimension and format of the producer. 256 sp<ANativeWindow> anw = producer; 257 int32_t width, height, format; 258 if ((res = anw->query(anw.get(), NATIVE_WINDOW_WIDTH, &width)) != OK) { 259 ALOGE("%s: Query Surface width failed: %s (%d)", __FUNCTION__, strerror(-res), res); 260 jniThrowRuntimeException(env, "Failed to query Surface width"); 261 return 0; 262 } 263 ctx->setBufferWidth(width); 264 265 if ((res = anw->query(anw.get(), NATIVE_WINDOW_HEIGHT, &height)) != OK) { 266 ALOGE("%s: Query Surface height failed: %s (%d)", __FUNCTION__, strerror(-res), res); 267 jniThrowRuntimeException(env, "Failed to query Surface height"); 268 return 0; 269 } 270 ctx->setBufferHeight(height); 271 272 if ((res = anw->query(anw.get(), NATIVE_WINDOW_FORMAT, &format)) != OK) { 273 ALOGE("%s: Query Surface format failed: %s (%d)", __FUNCTION__, strerror(-res), res); 274 jniThrowRuntimeException(env, "Failed to query Surface format"); 275 return 0; 276 } 277 ctx->setBufferFormat(format); 278 env->SetIntField(thiz, gImageWriterClassInfo.mWriterFormat, reinterpret_cast<jint>(format)); 279 280 281 if (isWritable(format)) { 282 res = native_window_set_usage(anw.get(), GRALLOC_USAGE_SW_WRITE_OFTEN); 283 if (res != OK) { 284 ALOGE("%s: Configure usage %08x for format %08x failed: %s (%d)", 285 __FUNCTION__, GRALLOC_USAGE_SW_WRITE_OFTEN, format, strerror(-res), res); 286 jniThrowRuntimeException(env, "Failed to SW_WRITE_OFTEN configure usage"); 287 return 0; 288 } 289 } 290 291 int minUndequeuedBufferCount = 0; 292 res = anw->query(anw.get(), 293 NATIVE_WINDOW_MIN_UNDEQUEUED_BUFFERS, &minUndequeuedBufferCount); 294 if (res != OK) { 295 ALOGE("%s: Query producer undequeued buffer count failed: %s (%d)", 296 __FUNCTION__, strerror(-res), res); 297 jniThrowRuntimeException(env, "Query producer undequeued buffer count failed"); 298 return 0; 299 } 300 301 size_t totalBufferCount = maxImages + minUndequeuedBufferCount; 302 res = native_window_set_buffer_count(anw.get(), totalBufferCount); 303 if (res != OK) { 304 ALOGE("%s: Set buffer count failed: %s (%d)", __FUNCTION__, strerror(-res), res); 305 jniThrowRuntimeException(env, "Set buffer count failed"); 306 return 0; 307 } 308 309 if (ctx != 0) { 310 ctx->incStrong((void*)ImageWriter_init); 311 } 312 return nativeCtx; 313} 314 315static void ImageWriter_dequeueImage(JNIEnv* env, jobject thiz, jlong nativeCtx, jobject image) { 316 ALOGV("%s", __FUNCTION__); 317 JNIImageWriterContext* const ctx = reinterpret_cast<JNIImageWriterContext *>(nativeCtx); 318 if (ctx == NULL || thiz == NULL) { 319 jniThrowException(env, "java/lang/IllegalStateException", 320 "ImageWriterContext is not initialized"); 321 return; 322 } 323 324 sp<ANativeWindow> anw = ctx->getProducer(); 325 android_native_buffer_t *anb = NULL; 326 int fenceFd = -1; 327 status_t res = anw->dequeueBuffer(anw.get(), &anb, &fenceFd); 328 if (res != OK) { 329 // TODO: handle different error cases here. 330 ALOGE("%s: Set buffer count failed: %s (%d)", __FUNCTION__, strerror(-res), res); 331 jniThrowRuntimeException(env, "dequeue buffer failed"); 332 return; 333 } 334 // New GraphicBuffer object doesn't own the handle, thus the native buffer 335 // won't be freed when this object is destroyed. 336 sp<GraphicBuffer> buffer(new GraphicBuffer(anb, /*keepOwnership*/false)); 337 338 // Note that: 339 // 1. No need to lock buffer now, will only lock it when the first getPlanes() is called. 340 // 2. Fence will be saved to mNativeFenceFd, and will consumed by lock/queue/cancel buffer 341 // later. 342 // 3. need use lockAsync here, as it will handle the dequeued fence for us automatically. 343 344 // Finally, set the native info into image object. 345 Image_setNativeContext(env, image, buffer, fenceFd); 346} 347 348static void ImageWriter_close(JNIEnv* env, jobject thiz, jlong nativeCtx) { 349 ALOGV("%s:", __FUNCTION__); 350 JNIImageWriterContext* const ctx = reinterpret_cast<JNIImageWriterContext *>(nativeCtx); 351 if (ctx == NULL || thiz == NULL) { 352 jniThrowException(env, "java/lang/IllegalStateException", 353 "ImageWriterContext is not initialized"); 354 return; 355 } 356 357 ANativeWindow* producer = ctx->getProducer(); 358 if (producer != NULL) { 359 /** 360 * NATIVE_WINDOW_API_CPU isn't a good choice here, as it makes the bufferQueue not 361 * connectable after disconnect. MEDIA or CAMERA are treated the same internally. 362 * The producer listener will be cleared after disconnect call. 363 */ 364 status_t res = native_window_api_disconnect(producer, /*api*/NATIVE_WINDOW_API_CAMERA); 365 /** 366 * This is not an error. if client calling process dies, the window will 367 * also die and all calls to it will return DEAD_OBJECT, thus it's already 368 * "disconnected" 369 */ 370 if (res == DEAD_OBJECT) { 371 ALOGW("%s: While disconnecting ImageWriter from native window, the" 372 " native window died already", __FUNCTION__); 373 } else if (res != OK) { 374 ALOGE("%s: native window disconnect failed: %s (%d)", 375 __FUNCTION__, strerror(-res), res); 376 jniThrowRuntimeException(env, "Native window disconnect failed"); 377 return; 378 } 379 } 380 381 ctx->decStrong((void*)ImageWriter_init); 382} 383 384static void ImageWriter_cancelImage(JNIEnv* env, jobject thiz, jlong nativeCtx, jobject image) { 385 ALOGV("%s", __FUNCTION__); 386 JNIImageWriterContext* const ctx = reinterpret_cast<JNIImageWriterContext *>(nativeCtx); 387 if (ctx == NULL || thiz == NULL) { 388 jniThrowException(env, "java/lang/IllegalStateException", 389 "ImageWriterContext is not initialized"); 390 return; 391 } 392 393 sp<ANativeWindow> anw = ctx->getProducer(); 394 395 GraphicBuffer *buffer = NULL; 396 int fenceFd = -1; 397 Image_getNativeContext(env, image, &buffer, &fenceFd); 398 if (buffer == NULL) { 399 jniThrowException(env, "java/lang/IllegalStateException", 400 "Image is not initialized"); 401 return; 402 } 403 404 // Unlock the image if it was locked 405 Image_unlockIfLocked(env, image); 406 407 anw->cancelBuffer(anw.get(), buffer, fenceFd); 408 409 Image_setNativeContext(env, image, NULL, -1); 410} 411 412static void ImageWriter_queueImage(JNIEnv* env, jobject thiz, jlong nativeCtx, jobject image, 413 jlong timestampNs, jint left, jint top, jint right, jint bottom) { 414 ALOGV("%s", __FUNCTION__); 415 JNIImageWriterContext* const ctx = reinterpret_cast<JNIImageWriterContext *>(nativeCtx); 416 if (ctx == NULL || thiz == NULL) { 417 jniThrowException(env, "java/lang/IllegalStateException", 418 "ImageWriterContext is not initialized"); 419 return; 420 } 421 422 status_t res = OK; 423 sp<ANativeWindow> anw = ctx->getProducer(); 424 425 GraphicBuffer *buffer = NULL; 426 int fenceFd = -1; 427 Image_getNativeContext(env, image, &buffer, &fenceFd); 428 if (buffer == NULL) { 429 jniThrowException(env, "java/lang/IllegalStateException", 430 "Image is not initialized"); 431 return; 432 } 433 434 // Unlock image if it was locked. 435 Image_unlockIfLocked(env, image); 436 437 // Set timestamp 438 ALOGV("timestamp to be queued: %" PRId64, timestampNs); 439 res = native_window_set_buffers_timestamp(anw.get(), timestampNs); 440 if (res != OK) { 441 jniThrowRuntimeException(env, "Set timestamp failed"); 442 return; 443 } 444 445 // Set crop 446 android_native_rect_t cropRect; 447 cropRect.left = left; 448 cropRect.top = top; 449 cropRect.right = right; 450 cropRect.bottom = bottom; 451 res = native_window_set_crop(anw.get(), &cropRect); 452 if (res != OK) { 453 jniThrowRuntimeException(env, "Set crop rect failed"); 454 return; 455 } 456 457 // Finally, queue input buffer 458 res = anw->queueBuffer(anw.get(), buffer, fenceFd); 459 if (res != OK) { 460 jniThrowRuntimeException(env, "Queue input buffer failed"); 461 return; 462 } 463 464 Image_setNativeContext(env, image, NULL, -1); 465} 466 467static void ImageWriter_attachImage(JNIEnv* env, jobject thiz, jlong nativeCtx, jobject image) { 468 ALOGV("%s", __FUNCTION__); 469 JNIImageWriterContext* const ctx = reinterpret_cast<JNIImageWriterContext *>(nativeCtx); 470 if (ctx == NULL || thiz == NULL) { 471 jniThrowException(env, "java/lang/IllegalStateException", 472 "ImageWriterContext is not initialized"); 473 return; 474 } 475 476 sp<ANativeWindow> anw = ctx->getProducer(); 477 478 GraphicBuffer *buffer = NULL; 479 int fenceFd = -1; 480 Image_getNativeContext(env, image, &buffer, &fenceFd); 481 if (buffer == NULL) { 482 jniThrowException(env, "java/lang/IllegalStateException", 483 "Image is not initialized"); 484 return; 485 } 486 487 // TODO: need implement 488 jniThrowRuntimeException(env, "nativeAttachImage is not implement yet!!!"); 489} 490 491// --------------------------Image methods--------------------------------------- 492 493static void Image_getNativeContext(JNIEnv* env, jobject thiz, 494 GraphicBuffer** buffer, int* fenceFd) { 495 ALOGV("%s", __FUNCTION__); 496 if (buffer != NULL) { 497 GraphicBuffer *gb = reinterpret_cast<GraphicBuffer *> 498 (env->GetLongField(thiz, gSurfaceImageClassInfo.mNativeBuffer)); 499 *buffer = gb; 500 } 501 502 if (fenceFd != NULL) { 503 *fenceFd = reinterpret_cast<jint>(env->GetIntField( 504 thiz, gSurfaceImageClassInfo.mNativeFenceFd)); 505 } 506} 507 508static void Image_setNativeContext(JNIEnv* env, jobject thiz, 509 sp<GraphicBuffer> buffer, int fenceFd) { 510 ALOGV("%s:", __FUNCTION__); 511 GraphicBuffer* p = NULL; 512 Image_getNativeContext(env, thiz, &p, /*fenceFd*/NULL); 513 if (buffer != 0) { 514 buffer->incStrong((void*)Image_setNativeContext); 515 } 516 if (p) { 517 p->decStrong((void*)Image_setNativeContext); 518 } 519 env->SetLongField(thiz, gSurfaceImageClassInfo.mNativeBuffer, 520 reinterpret_cast<jlong>(buffer.get())); 521 522 env->SetIntField(thiz, gSurfaceImageClassInfo.mNativeFenceFd, reinterpret_cast<jint>(fenceFd)); 523} 524 525static void Image_unlockIfLocked(JNIEnv* env, jobject thiz) { 526 ALOGV("%s", __FUNCTION__); 527 GraphicBuffer* buffer; 528 Image_getNativeContext(env, thiz, &buffer, NULL); 529 if (buffer == NULL) { 530 jniThrowException(env, "java/lang/IllegalStateException", 531 "Image is not initialized"); 532 return; 533 } 534 535 // Is locked? 536 bool isLocked = false; 537 jobject planes = env->GetObjectField(thiz, gSurfaceImageClassInfo.mPlanes); 538 isLocked = (planes != NULL); 539 if (isLocked) { 540 // no need to use fence here, as we it will be consumed by either concel or queue buffer. 541 status_t res = buffer->unlock(); 542 if (res != OK) { 543 jniThrowRuntimeException(env, "unlock buffer failed"); 544 } 545 ALOGV("Successfully unlocked the image"); 546 } 547} 548 549static jint Image_getWidth(JNIEnv* env, jobject thiz) { 550 ALOGV("%s", __FUNCTION__); 551 GraphicBuffer* buffer; 552 Image_getNativeContext(env, thiz, &buffer, NULL); 553 if (buffer == NULL) { 554 jniThrowException(env, "java/lang/IllegalStateException", 555 "Image is not initialized"); 556 return -1; 557 } 558 559 return buffer->getWidth(); 560} 561 562static jint Image_getHeight(JNIEnv* env, jobject thiz) { 563 ALOGV("%s", __FUNCTION__); 564 GraphicBuffer* buffer; 565 Image_getNativeContext(env, thiz, &buffer, NULL); 566 if (buffer == NULL) { 567 jniThrowException(env, "java/lang/IllegalStateException", 568 "Image is not initialized"); 569 return -1; 570 } 571 572 return buffer->getHeight(); 573} 574 575// Some formats like JPEG defined with different values between android.graphics.ImageFormat and 576// graphics.h, need convert to the one defined in graphics.h here. 577static int Image_getPixelFormat(JNIEnv* env, int format) { 578 int jpegFormat; 579 jfieldID fid; 580 581 ALOGV("%s: format = 0x%x", __FUNCTION__, format); 582 583 jclass imageFormatClazz = env->FindClass("android/graphics/ImageFormat"); 584 ALOG_ASSERT(imageFormatClazz != NULL); 585 586 fid = env->GetStaticFieldID(imageFormatClazz, "JPEG", "I"); 587 jpegFormat = env->GetStaticIntField(imageFormatClazz, fid); 588 589 // Translate the JPEG to BLOB for camera purpose. 590 if (format == jpegFormat) { 591 format = HAL_PIXEL_FORMAT_BLOB; 592 } 593 594 return format; 595} 596 597static jint Image_getFormat(JNIEnv* env, jobject thiz) { 598 ALOGV("%s", __FUNCTION__); 599 GraphicBuffer* buffer; 600 Image_getNativeContext(env, thiz, &buffer, NULL); 601 if (buffer == NULL) { 602 jniThrowException(env, "java/lang/IllegalStateException", 603 "Image is not initialized"); 604 return 0; 605 } 606 607 return Image_getPixelFormat(env, buffer->getPixelFormat()); 608} 609 610static void Image_setFenceFd(JNIEnv* env, jobject thiz, int fenceFd) { 611 ALOGV("%s:", __FUNCTION__); 612 env->SetIntField(thiz, gSurfaceImageClassInfo.mNativeFenceFd, reinterpret_cast<jint>(fenceFd)); 613} 614 615static void Image_getLockedImage(JNIEnv* env, jobject thiz, LockedImage *image) { 616 ALOGV("%s", __FUNCTION__); 617 GraphicBuffer* buffer; 618 int fenceFd = -1; 619 Image_getNativeContext(env, thiz, &buffer, &fenceFd); 620 if (buffer == NULL) { 621 jniThrowException(env, "java/lang/IllegalStateException", 622 "Image is not initialized"); 623 return; 624 } 625 626 void* pData = NULL; 627 android_ycbcr ycbcr = android_ycbcr(); 628 status_t res; 629 int format = Image_getFormat(env, thiz); 630 int flexFormat = format; 631 if (isPossiblyYUV(format)) { 632 // ImageWriter doesn't use crop by itself, app sets it, use the no crop version. 633 res = buffer->lockAsyncYCbCr(GRALLOC_USAGE_SW_WRITE_OFTEN, &ycbcr, fenceFd); 634 // Clear the fenceFd as it is already consumed by lock call. 635 Image_setFenceFd(env, thiz, /*fenceFd*/-1); 636 if (res != OK) { 637 jniThrowRuntimeException(env, "lockAsyncYCbCr failed for YUV buffer"); 638 return; 639 } 640 pData = ycbcr.y; 641 flexFormat = HAL_PIXEL_FORMAT_YCbCr_420_888; 642 } 643 644 // lockAsyncYCbCr for YUV is unsuccessful. 645 if (pData == NULL) { 646 res = buffer->lockAsync(GRALLOC_USAGE_SW_WRITE_OFTEN, &pData, fenceFd); 647 if (res != OK) { 648 jniThrowRuntimeException(env, "lockAsync failed"); 649 return; 650 } 651 } 652 653 image->data = reinterpret_cast<uint8_t*>(pData); 654 image->width = buffer->getWidth(); 655 image->height = buffer->getHeight(); 656 image->format = format; 657 image->flexFormat = flexFormat; 658 image->stride = (ycbcr.y != NULL) ? static_cast<uint32_t>(ycbcr.ystride) : buffer->getStride(); 659 660 image->dataCb = reinterpret_cast<uint8_t*>(ycbcr.cb); 661 image->dataCr = reinterpret_cast<uint8_t*>(ycbcr.cr); 662 image->chromaStride = static_cast<uint32_t>(ycbcr.cstride); 663 image->chromaStep = static_cast<uint32_t>(ycbcr.chroma_step); 664 ALOGV("Successfully locked the image"); 665 // crop, transform, scalingMode, timestamp, and frameNumber should be set by producer, 666 // and we don't set them here. 667} 668 669static bool usingRGBAToJpegOverride(int32_t bufferFormat, int32_t writerCtxFormat) { 670 return writerCtxFormat == HAL_PIXEL_FORMAT_BLOB && bufferFormat == HAL_PIXEL_FORMAT_RGBA_8888; 671} 672 673static int32_t applyFormatOverrides(int32_t bufferFormat, int32_t writerCtxFormat) 674{ 675 // Using HAL_PIXEL_FORMAT_RGBA_8888 gralloc buffers containing JPEGs to get around SW 676 // write limitations for some platforms (b/17379185). 677 if (usingRGBAToJpegOverride(bufferFormat, writerCtxFormat)) { 678 return HAL_PIXEL_FORMAT_BLOB; 679 } 680 return bufferFormat; 681} 682 683static uint32_t Image_getJpegSize(LockedImage* buffer, bool usingRGBAOverride) { 684 ALOGV("%s", __FUNCTION__); 685 ALOG_ASSERT(buffer != NULL, "Input buffer is NULL!!!"); 686 uint32_t size = 0; 687 uint32_t width = buffer->width; 688 uint8_t* jpegBuffer = buffer->data; 689 690 if (usingRGBAOverride) { 691 width = (buffer->width + buffer->stride * (buffer->height - 1)) * 4; 692 } 693 694 // First check for JPEG transport header at the end of the buffer 695 uint8_t* header = jpegBuffer + (width - sizeof(struct camera3_jpeg_blob)); 696 struct camera3_jpeg_blob *blob = (struct camera3_jpeg_blob*)(header); 697 if (blob->jpeg_blob_id == CAMERA3_JPEG_BLOB_ID) { 698 size = blob->jpeg_size; 699 ALOGV("%s: Jpeg size = %d", __FUNCTION__, size); 700 } 701 702 // failed to find size, default to whole buffer 703 if (size == 0) { 704 /* 705 * This is a problem because not including the JPEG header 706 * means that in certain rare situations a regular JPEG blob 707 * will be misidentified as having a header, in which case 708 * we will get a garbage size value. 709 */ 710 ALOGW("%s: No JPEG header detected, defaulting to size=width=%d", 711 __FUNCTION__, width); 712 size = width; 713 } 714 715 return size; 716} 717 718static void Image_getLockedImageInfo(JNIEnv* env, LockedImage* buffer, int idx, 719 int32_t writerFormat, uint8_t **base, uint32_t *size, int *pixelStride, int *rowStride) { 720 ALOGV("%s", __FUNCTION__); 721 ALOG_ASSERT(buffer != NULL, "Input buffer is NULL!!!"); 722 ALOG_ASSERT(base != NULL, "base is NULL!!!"); 723 ALOG_ASSERT(size != NULL, "size is NULL!!!"); 724 ALOG_ASSERT(pixelStride != NULL, "pixelStride is NULL!!!"); 725 ALOG_ASSERT(rowStride != NULL, "rowStride is NULL!!!"); 726 ALOG_ASSERT((idx < IMAGE_WRITER_MAX_NUM_PLANES) && (idx >= 0)); 727 728 ALOGV("%s: buffer: %p", __FUNCTION__, buffer); 729 730 uint32_t dataSize, ySize, cSize, cStride; 731 uint32_t pStride = 0, rStride = 0; 732 uint8_t *cb, *cr; 733 uint8_t *pData = NULL; 734 int bytesPerPixel = 0; 735 736 dataSize = ySize = cSize = cStride = 0; 737 int32_t fmt = buffer->flexFormat; 738 739 bool usingRGBAOverride = usingRGBAToJpegOverride(fmt, writerFormat); 740 fmt = applyFormatOverrides(fmt, writerFormat); 741 switch (fmt) { 742 case HAL_PIXEL_FORMAT_YCbCr_420_888: 743 pData = 744 (idx == 0) ? 745 buffer->data : 746 (idx == 1) ? 747 buffer->dataCb : 748 buffer->dataCr; 749 // only map until last pixel 750 if (idx == 0) { 751 pStride = 1; 752 rStride = buffer->stride; 753 dataSize = buffer->stride * (buffer->height - 1) + buffer->width; 754 } else { 755 pStride = buffer->chromaStep; 756 rStride = buffer->chromaStride; 757 dataSize = buffer->chromaStride * (buffer->height / 2 - 1) + 758 buffer->chromaStep * (buffer->width / 2 - 1) + 1; 759 } 760 break; 761 // NV21 762 case HAL_PIXEL_FORMAT_YCrCb_420_SP: 763 cr = buffer->data + (buffer->stride * buffer->height); 764 cb = cr + 1; 765 // only map until last pixel 766 ySize = buffer->width * (buffer->height - 1) + buffer->width; 767 cSize = buffer->width * (buffer->height / 2 - 1) + buffer->width - 1; 768 769 pData = 770 (idx == 0) ? 771 buffer->data : 772 (idx == 1) ? 773 cb: 774 cr; 775 776 dataSize = (idx == 0) ? ySize : cSize; 777 pStride = (idx == 0) ? 1 : 2; 778 rStride = buffer->width; 779 break; 780 case HAL_PIXEL_FORMAT_YV12: 781 // Y and C stride need to be 16 pixel aligned. 782 LOG_ALWAYS_FATAL_IF(buffer->stride % 16, 783 "Stride is not 16 pixel aligned %d", buffer->stride); 784 785 ySize = buffer->stride * buffer->height; 786 cStride = ALIGN(buffer->stride / 2, 16); 787 cr = buffer->data + ySize; 788 cSize = cStride * buffer->height / 2; 789 cb = cr + cSize; 790 791 pData = 792 (idx == 0) ? 793 buffer->data : 794 (idx == 1) ? 795 cb : 796 cr; 797 dataSize = (idx == 0) ? ySize : cSize; 798 pStride = 1; 799 rStride = (idx == 0) ? buffer->stride : ALIGN(buffer->stride / 2, 16); 800 break; 801 case HAL_PIXEL_FORMAT_Y8: 802 // Single plane, 8bpp. 803 ALOG_ASSERT(idx == 0, "Wrong index: %d", idx); 804 805 pData = buffer->data; 806 dataSize = buffer->stride * buffer->height; 807 pStride = 1; 808 rStride = buffer->stride; 809 break; 810 case HAL_PIXEL_FORMAT_Y16: 811 bytesPerPixel = 2; 812 // Single plane, 16bpp, strides are specified in pixels, not in bytes 813 ALOG_ASSERT(idx == 0, "Wrong index: %d", idx); 814 815 pData = buffer->data; 816 dataSize = buffer->stride * buffer->height * bytesPerPixel; 817 pStride = bytesPerPixel; 818 rStride = buffer->stride * 2; 819 break; 820 case HAL_PIXEL_FORMAT_BLOB: 821 // Used for JPEG data, height must be 1, width == size, single plane. 822 ALOG_ASSERT(idx == 0, "Wrong index: %d", idx); 823 ALOG_ASSERT(buffer->height == 1, "JPEG should has height value %d", buffer->height); 824 825 pData = buffer->data; 826 dataSize = Image_getJpegSize(buffer, usingRGBAOverride); 827 pStride = bytesPerPixel; 828 rowStride = 0; 829 break; 830 case HAL_PIXEL_FORMAT_RAW16: 831 // Single plane 16bpp bayer data. 832 bytesPerPixel = 2; 833 ALOG_ASSERT(idx == 0, "Wrong index: %d", idx); 834 pData = buffer->data; 835 dataSize = buffer->stride * buffer->height * bytesPerPixel; 836 pStride = bytesPerPixel; 837 rStride = buffer->stride * 2; 838 break; 839 case HAL_PIXEL_FORMAT_RAW10: 840 // Single plane 10bpp bayer data. 841 ALOG_ASSERT(idx == 0, "Wrong index: %d", idx); 842 LOG_ALWAYS_FATAL_IF(buffer->width % 4, 843 "Width is not multiple of 4 %d", buffer->width); 844 LOG_ALWAYS_FATAL_IF(buffer->height % 2, 845 "Height is not even %d", buffer->height); 846 LOG_ALWAYS_FATAL_IF(buffer->stride < (buffer->width * 10 / 8), 847 "stride (%d) should be at least %d", 848 buffer->stride, buffer->width * 10 / 8); 849 pData = buffer->data; 850 dataSize = buffer->stride * buffer->height; 851 pStride = 0; 852 rStride = buffer->stride; 853 break; 854 case HAL_PIXEL_FORMAT_RGBA_8888: 855 case HAL_PIXEL_FORMAT_RGBX_8888: 856 // Single plane, 32bpp. 857 bytesPerPixel = 4; 858 ALOG_ASSERT(idx == 0, "Wrong index: %d", idx); 859 pData = buffer->data; 860 dataSize = buffer->stride * buffer->height * bytesPerPixel; 861 pStride = bytesPerPixel; 862 rStride = buffer->stride * 4; 863 break; 864 case HAL_PIXEL_FORMAT_RGB_565: 865 // Single plane, 16bpp. 866 bytesPerPixel = 2; 867 ALOG_ASSERT(idx == 0, "Wrong index: %d", idx); 868 pData = buffer->data; 869 dataSize = buffer->stride * buffer->height * bytesPerPixel; 870 pStride = bytesPerPixel; 871 rStride = buffer->stride * 2; 872 break; 873 case HAL_PIXEL_FORMAT_RGB_888: 874 // Single plane, 24bpp. 875 bytesPerPixel = 3; 876 ALOG_ASSERT(idx == 0, "Wrong index: %d", idx); 877 pData = buffer->data; 878 dataSize = buffer->stride * buffer->height * bytesPerPixel; 879 pStride = bytesPerPixel; 880 rStride = buffer->stride * 3; 881 break; 882 default: 883 jniThrowExceptionFmt(env, "java/lang/UnsupportedOperationException", 884 "Pixel format: 0x%x is unsupported", fmt); 885 break; 886 } 887 888 *base = pData; 889 *size = dataSize; 890 *pixelStride = pStride; 891 *rowStride = rStride; 892} 893 894static jobjectArray Image_createSurfacePlanes(JNIEnv* env, jobject thiz, 895 int numPlanes, int writerFormat) { 896 ALOGV("%s: create SurfacePlane array with size %d", __FUNCTION__, numPlanes); 897 int rowStride, pixelStride; 898 uint8_t *pData; 899 uint32_t dataSize; 900 jobject byteBuffer; 901 902 int format = Image_getFormat(env, thiz); 903 if (!isWritable(format) && numPlanes > 0) { 904 String8 msg; 905 msg.appendFormat("Format 0x%x is opaque, thus not writable, the number of planes (%d)" 906 " must be 0", format, numPlanes); 907 jniThrowException(env, "java/lang/IllegalArgumentException", msg.string()); 908 return NULL; 909 } 910 911 jobjectArray surfacePlanes = env->NewObjectArray(numPlanes, gSurfacePlaneClassInfo.clazz, 912 /*initial_element*/NULL); 913 if (surfacePlanes == NULL) { 914 jniThrowRuntimeException(env, "Failed to create SurfacePlane arrays," 915 " probably out of memory"); 916 return NULL; 917 } 918 919 // Buildup buffer info: rowStride, pixelStride and byteBuffers. 920 LockedImage lockedImg = LockedImage(); 921 Image_getLockedImage(env, thiz, &lockedImg); 922 923 // Create all SurfacePlanes 924 writerFormat = Image_getPixelFormat(env, writerFormat); 925 for (int i = 0; i < numPlanes; i++) { 926 Image_getLockedImageInfo(env, &lockedImg, i, writerFormat, 927 &pData, &dataSize, &pixelStride, &rowStride); 928 byteBuffer = env->NewDirectByteBuffer(pData, dataSize); 929 if ((byteBuffer == NULL) && (env->ExceptionCheck() == false)) { 930 jniThrowException(env, "java/lang/IllegalStateException", 931 "Failed to allocate ByteBuffer"); 932 return NULL; 933 } 934 935 // Finally, create this SurfacePlane. 936 jobject surfacePlane = env->NewObject(gSurfacePlaneClassInfo.clazz, 937 gSurfacePlaneClassInfo.ctor, thiz, rowStride, pixelStride, byteBuffer); 938 env->SetObjectArrayElement(surfacePlanes, i, surfacePlane); 939 } 940 941 return surfacePlanes; 942} 943 944// -------------------------------Private convenience methods-------------------- 945 946// Check if buffer with this format is writable. Generally speaking, the opaque formats 947// like IMPLEMENTATION_DEFINED is not writable, as the actual buffer formats and layouts 948// are unknown to frameworks. 949static bool isWritable(int format) { 950 // Assume all other formats are writable. 951 return !(format == HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED || 952 format == HAL_PIXEL_FORMAT_RAW_OPAQUE); 953} 954 955static bool isPossiblyYUV(PixelFormat format) { 956 switch (static_cast<int>(format)) { 957 case HAL_PIXEL_FORMAT_RGBA_8888: 958 case HAL_PIXEL_FORMAT_RGBX_8888: 959 case HAL_PIXEL_FORMAT_RGB_888: 960 case HAL_PIXEL_FORMAT_RGB_565: 961 case HAL_PIXEL_FORMAT_BGRA_8888: 962 case HAL_PIXEL_FORMAT_Y8: 963 case HAL_PIXEL_FORMAT_Y16: 964 case HAL_PIXEL_FORMAT_RAW16: 965 case HAL_PIXEL_FORMAT_RAW10: 966 case HAL_PIXEL_FORMAT_RAW_OPAQUE: 967 case HAL_PIXEL_FORMAT_BLOB: 968 case HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED: 969 return false; 970 971 case HAL_PIXEL_FORMAT_YV12: 972 case HAL_PIXEL_FORMAT_YCbCr_420_888: 973 case HAL_PIXEL_FORMAT_YCbCr_422_SP: 974 case HAL_PIXEL_FORMAT_YCrCb_420_SP: 975 case HAL_PIXEL_FORMAT_YCbCr_422_I: 976 default: 977 return true; 978 } 979} 980 981} // extern "C" 982 983// ---------------------------------------------------------------------------- 984 985static JNINativeMethod gImageWriterMethods[] = { 986 {"nativeClassInit", "()V", (void*)ImageWriter_classInit }, 987 {"nativeInit", "(Ljava/lang/Object;Landroid/view/Surface;I)J", 988 (void*)ImageWriter_init }, 989 {"nativeClose", "(J)V", (void*)ImageWriter_close }, 990 {"nativeAttachImage", "(JLandroid/media/Image;)V", (void*)ImageWriter_attachImage }, 991 {"nativeDequeueInputImage", "(JLandroid/media/Image;)V", (void*)ImageWriter_dequeueImage }, 992 {"nativeQueueInputImage", "(JLandroid/media/Image;JIIII)V", (void*)ImageWriter_queueImage }, 993 {"cancelImage", "(JLandroid/media/Image;)V", (void*)ImageWriter_cancelImage }, 994}; 995 996static JNINativeMethod gImageMethods[] = { 997 {"nativeCreatePlanes", "(II)[Landroid/media/ImageWriter$WriterSurfaceImage$SurfacePlane;", 998 (void*)Image_createSurfacePlanes }, 999 {"nativeGetWidth", "()I", (void*)Image_getWidth }, 1000 {"nativeGetHeight", "()I", (void*)Image_getHeight }, 1001 {"nativeGetFormat", "()I", (void*)Image_getFormat }, 1002}; 1003 1004int register_android_media_ImageWriter(JNIEnv *env) { 1005 1006 int ret1 = AndroidRuntime::registerNativeMethods(env, 1007 "android/media/ImageWriter", gImageWriterMethods, NELEM(gImageWriterMethods)); 1008 1009 int ret2 = AndroidRuntime::registerNativeMethods(env, 1010 "android/media/ImageWriter$WriterSurfaceImage", gImageMethods, NELEM(gImageMethods)); 1011 1012 return (ret1 || ret2); 1013} 1014 1015