Graphics.cpp revision 9f58361e98be7386a4eadd3aa254e9b7d09d0a3b
1#define LOG_TAG "GraphicsJNI" 2 3#include "jni.h" 4#include "JNIHelp.h" 5#include "GraphicsJNI.h" 6 7#include "SkCanvas.h" 8#include "SkDevice.h" 9#include "SkPicture.h" 10#include "SkRegion.h" 11#include <android_runtime/AndroidRuntime.h> 12 13void doThrowNPE(JNIEnv* env) { 14 jniThrowNullPointerException(env, NULL); 15} 16 17void doThrowAIOOBE(JNIEnv* env) { 18 jniThrowException(env, "java/lang/ArrayIndexOutOfBoundsException", NULL); 19} 20 21void doThrowRE(JNIEnv* env, const char* msg) { 22 jniThrowRuntimeException(env, msg); 23} 24 25void doThrowIAE(JNIEnv* env, const char* msg) { 26 jniThrowException(env, "java/lang/IllegalArgumentException", msg); 27} 28 29void doThrowISE(JNIEnv* env, const char* msg) { 30 jniThrowException(env, "java/lang/IllegalStateException", msg); 31} 32 33void doThrowOOME(JNIEnv* env, const char* msg) { 34 jniThrowException(env, "java/lang/OutOfMemoryError", msg); 35} 36 37void doThrowIOE(JNIEnv* env, const char* msg) { 38 jniThrowException(env, "java/io/IOException", msg); 39} 40 41bool GraphicsJNI::hasException(JNIEnv *env) { 42 if (env->ExceptionCheck() != 0) { 43 ALOGE("*** Uncaught exception returned from Java call!\n"); 44 env->ExceptionDescribe(); 45 return true; 46 } 47 return false; 48} 49 50/////////////////////////////////////////////////////////////////////////////// 51 52AutoJavaFloatArray::AutoJavaFloatArray(JNIEnv* env, jfloatArray array, 53 int minLength, JNIAccess access) 54: fEnv(env), fArray(array), fPtr(NULL), fLen(0) { 55 SkASSERT(env); 56 if (array) { 57 fLen = env->GetArrayLength(array); 58 if (fLen < minLength) { 59 sk_throw(); 60 } 61 fPtr = env->GetFloatArrayElements(array, NULL); 62 } 63 fReleaseMode = (access == kRO_JNIAccess) ? JNI_ABORT : 0; 64} 65 66AutoJavaFloatArray::~AutoJavaFloatArray() { 67 if (fPtr) { 68 fEnv->ReleaseFloatArrayElements(fArray, fPtr, fReleaseMode); 69 } 70} 71 72AutoJavaIntArray::AutoJavaIntArray(JNIEnv* env, jintArray array, 73 int minLength) 74: fEnv(env), fArray(array), fPtr(NULL), fLen(0) { 75 SkASSERT(env); 76 if (array) { 77 fLen = env->GetArrayLength(array); 78 if (fLen < minLength) { 79 sk_throw(); 80 } 81 fPtr = env->GetIntArrayElements(array, NULL); 82 } 83} 84 85AutoJavaIntArray::~AutoJavaIntArray() { 86 if (fPtr) { 87 fEnv->ReleaseIntArrayElements(fArray, fPtr, 0); 88 } 89} 90 91AutoJavaShortArray::AutoJavaShortArray(JNIEnv* env, jshortArray array, 92 int minLength, JNIAccess access) 93: fEnv(env), fArray(array), fPtr(NULL), fLen(0) { 94 SkASSERT(env); 95 if (array) { 96 fLen = env->GetArrayLength(array); 97 if (fLen < minLength) { 98 sk_throw(); 99 } 100 fPtr = env->GetShortArrayElements(array, NULL); 101 } 102 fReleaseMode = (access == kRO_JNIAccess) ? JNI_ABORT : 0; 103} 104 105AutoJavaShortArray::~AutoJavaShortArray() { 106 if (fPtr) { 107 fEnv->ReleaseShortArrayElements(fArray, fPtr, fReleaseMode); 108 } 109} 110 111AutoJavaByteArray::AutoJavaByteArray(JNIEnv* env, jbyteArray array, 112 int minLength) 113: fEnv(env), fArray(array), fPtr(NULL), fLen(0) { 114 SkASSERT(env); 115 if (array) { 116 fLen = env->GetArrayLength(array); 117 if (fLen < minLength) { 118 sk_throw(); 119 } 120 fPtr = env->GetByteArrayElements(array, NULL); 121 } 122} 123 124AutoJavaByteArray::~AutoJavaByteArray() { 125 if (fPtr) { 126 fEnv->ReleaseByteArrayElements(fArray, fPtr, 0); 127 } 128} 129 130/////////////////////////////////////////////////////////////////////////////// 131 132static jclass gRect_class; 133static jfieldID gRect_leftFieldID; 134static jfieldID gRect_topFieldID; 135static jfieldID gRect_rightFieldID; 136static jfieldID gRect_bottomFieldID; 137 138static jclass gRectF_class; 139static jfieldID gRectF_leftFieldID; 140static jfieldID gRectF_topFieldID; 141static jfieldID gRectF_rightFieldID; 142static jfieldID gRectF_bottomFieldID; 143 144static jclass gPoint_class; 145static jfieldID gPoint_xFieldID; 146static jfieldID gPoint_yFieldID; 147 148static jclass gPointF_class; 149static jfieldID gPointF_xFieldID; 150static jfieldID gPointF_yFieldID; 151 152static jclass gBitmap_class; 153static jfieldID gBitmap_nativeInstanceID; 154static jmethodID gBitmap_constructorMethodID; 155static jmethodID gBitmap_reinitMethodID; 156static jmethodID gBitmap_getAllocationByteCountMethodID; 157 158static jclass gBitmapConfig_class; 159static jfieldID gBitmapConfig_nativeInstanceID; 160 161static jclass gBitmapRegionDecoder_class; 162static jmethodID gBitmapRegionDecoder_constructorMethodID; 163 164static jclass gCanvas_class; 165static jfieldID gCanvas_nativeInstanceID; 166 167static jclass gPaint_class; 168static jfieldID gPaint_nativeInstanceID; 169 170static jclass gPicture_class; 171static jfieldID gPicture_nativeInstanceID; 172 173static jclass gRegion_class; 174static jfieldID gRegion_nativeInstanceID; 175static jmethodID gRegion_constructorMethodID; 176 177/////////////////////////////////////////////////////////////////////////////// 178 179void GraphicsJNI::get_jrect(JNIEnv* env, jobject obj, int* L, int* T, int* R, int* B) 180{ 181 SkASSERT(env->IsInstanceOf(obj, gRect_class)); 182 183 *L = env->GetIntField(obj, gRect_leftFieldID); 184 *T = env->GetIntField(obj, gRect_topFieldID); 185 *R = env->GetIntField(obj, gRect_rightFieldID); 186 *B = env->GetIntField(obj, gRect_bottomFieldID); 187} 188 189void GraphicsJNI::set_jrect(JNIEnv* env, jobject obj, int L, int T, int R, int B) 190{ 191 SkASSERT(env->IsInstanceOf(obj, gRect_class)); 192 193 env->SetIntField(obj, gRect_leftFieldID, L); 194 env->SetIntField(obj, gRect_topFieldID, T); 195 env->SetIntField(obj, gRect_rightFieldID, R); 196 env->SetIntField(obj, gRect_bottomFieldID, B); 197} 198 199SkIRect* GraphicsJNI::jrect_to_irect(JNIEnv* env, jobject obj, SkIRect* ir) 200{ 201 SkASSERT(env->IsInstanceOf(obj, gRect_class)); 202 203 ir->set(env->GetIntField(obj, gRect_leftFieldID), 204 env->GetIntField(obj, gRect_topFieldID), 205 env->GetIntField(obj, gRect_rightFieldID), 206 env->GetIntField(obj, gRect_bottomFieldID)); 207 return ir; 208} 209 210void GraphicsJNI::irect_to_jrect(const SkIRect& ir, JNIEnv* env, jobject obj) 211{ 212 SkASSERT(env->IsInstanceOf(obj, gRect_class)); 213 214 env->SetIntField(obj, gRect_leftFieldID, ir.fLeft); 215 env->SetIntField(obj, gRect_topFieldID, ir.fTop); 216 env->SetIntField(obj, gRect_rightFieldID, ir.fRight); 217 env->SetIntField(obj, gRect_bottomFieldID, ir.fBottom); 218} 219 220SkRect* GraphicsJNI::jrectf_to_rect(JNIEnv* env, jobject obj, SkRect* r) 221{ 222 SkASSERT(env->IsInstanceOf(obj, gRectF_class)); 223 224 r->set(SkFloatToScalar(env->GetFloatField(obj, gRectF_leftFieldID)), 225 SkFloatToScalar(env->GetFloatField(obj, gRectF_topFieldID)), 226 SkFloatToScalar(env->GetFloatField(obj, gRectF_rightFieldID)), 227 SkFloatToScalar(env->GetFloatField(obj, gRectF_bottomFieldID))); 228 return r; 229} 230 231SkRect* GraphicsJNI::jrect_to_rect(JNIEnv* env, jobject obj, SkRect* r) 232{ 233 SkASSERT(env->IsInstanceOf(obj, gRect_class)); 234 235 r->set(SkIntToScalar(env->GetIntField(obj, gRect_leftFieldID)), 236 SkIntToScalar(env->GetIntField(obj, gRect_topFieldID)), 237 SkIntToScalar(env->GetIntField(obj, gRect_rightFieldID)), 238 SkIntToScalar(env->GetIntField(obj, gRect_bottomFieldID))); 239 return r; 240} 241 242void GraphicsJNI::rect_to_jrectf(const SkRect& r, JNIEnv* env, jobject obj) 243{ 244 SkASSERT(env->IsInstanceOf(obj, gRectF_class)); 245 246 env->SetFloatField(obj, gRectF_leftFieldID, SkScalarToFloat(r.fLeft)); 247 env->SetFloatField(obj, gRectF_topFieldID, SkScalarToFloat(r.fTop)); 248 env->SetFloatField(obj, gRectF_rightFieldID, SkScalarToFloat(r.fRight)); 249 env->SetFloatField(obj, gRectF_bottomFieldID, SkScalarToFloat(r.fBottom)); 250} 251 252SkIPoint* GraphicsJNI::jpoint_to_ipoint(JNIEnv* env, jobject obj, SkIPoint* point) 253{ 254 SkASSERT(env->IsInstanceOf(obj, gPoint_class)); 255 256 point->set(env->GetIntField(obj, gPoint_xFieldID), 257 env->GetIntField(obj, gPoint_yFieldID)); 258 return point; 259} 260 261void GraphicsJNI::ipoint_to_jpoint(const SkIPoint& ir, JNIEnv* env, jobject obj) 262{ 263 SkASSERT(env->IsInstanceOf(obj, gPoint_class)); 264 265 env->SetIntField(obj, gPoint_xFieldID, ir.fX); 266 env->SetIntField(obj, gPoint_yFieldID, ir.fY); 267} 268 269SkPoint* GraphicsJNI::jpointf_to_point(JNIEnv* env, jobject obj, SkPoint* point) 270{ 271 SkASSERT(env->IsInstanceOf(obj, gPointF_class)); 272 273 point->set(SkFloatToScalar(env->GetIntField(obj, gPointF_xFieldID)), 274 SkFloatToScalar(env->GetIntField(obj, gPointF_yFieldID))); 275 return point; 276} 277 278void GraphicsJNI::point_to_jpointf(const SkPoint& r, JNIEnv* env, jobject obj) 279{ 280 SkASSERT(env->IsInstanceOf(obj, gPointF_class)); 281 282 env->SetFloatField(obj, gPointF_xFieldID, SkScalarToFloat(r.fX)); 283 env->SetFloatField(obj, gPointF_yFieldID, SkScalarToFloat(r.fY)); 284} 285 286SkBitmap* GraphicsJNI::getNativeBitmap(JNIEnv* env, jobject bitmap) { 287 SkASSERT(env); 288 SkASSERT(bitmap); 289 SkASSERT(env->IsInstanceOf(bitmap, gBitmap_class)); 290 SkBitmap* b = (SkBitmap*)env->GetIntField(bitmap, gBitmap_nativeInstanceID); 291 SkASSERT(b); 292 return b; 293} 294 295SkBitmap::Config GraphicsJNI::getNativeBitmapConfig(JNIEnv* env, 296 jobject jconfig) { 297 SkASSERT(env); 298 if (NULL == jconfig) { 299 return SkBitmap::kNo_Config; 300 } 301 SkASSERT(env->IsInstanceOf(jconfig, gBitmapConfig_class)); 302 int c = env->GetIntField(jconfig, gBitmapConfig_nativeInstanceID); 303 if (c < 0 || c >= SkBitmap::kConfigCount) { 304 c = SkBitmap::kNo_Config; 305 } 306 return static_cast<SkBitmap::Config>(c); 307} 308 309SkCanvas* GraphicsJNI::getNativeCanvas(JNIEnv* env, jobject canvas) { 310 SkASSERT(env); 311 SkASSERT(canvas); 312 SkASSERT(env->IsInstanceOf(canvas, gCanvas_class)); 313 SkCanvas* c = (SkCanvas*)env->GetIntField(canvas, gCanvas_nativeInstanceID); 314 SkASSERT(c); 315 return c; 316} 317 318SkPaint* GraphicsJNI::getNativePaint(JNIEnv* env, jobject paint) { 319 SkASSERT(env); 320 SkASSERT(paint); 321 SkASSERT(env->IsInstanceOf(paint, gPaint_class)); 322 SkPaint* p = (SkPaint*)env->GetIntField(paint, gPaint_nativeInstanceID); 323 SkASSERT(p); 324 return p; 325} 326 327SkPicture* GraphicsJNI::getNativePicture(JNIEnv* env, jobject picture) 328{ 329 SkASSERT(env); 330 SkASSERT(picture); 331 SkASSERT(env->IsInstanceOf(picture, gPicture_class)); 332 SkPicture* p = (SkPicture*)env->GetIntField(picture, gPicture_nativeInstanceID); 333 SkASSERT(p); 334 return p; 335} 336 337SkRegion* GraphicsJNI::getNativeRegion(JNIEnv* env, jobject region) 338{ 339 SkASSERT(env); 340 SkASSERT(region); 341 SkASSERT(env->IsInstanceOf(region, gRegion_class)); 342 SkRegion* r = (SkRegion*)env->GetIntField(region, gRegion_nativeInstanceID); 343 SkASSERT(r); 344 return r; 345} 346 347/////////////////////////////////////////////////////////////////////////////////////////// 348 349jobject GraphicsJNI::createBitmap(JNIEnv* env, SkBitmap* bitmap, jbyteArray buffer, 350 bool isMutable, jbyteArray ninepatch, jintArray layoutbounds, 351 int density) 352{ 353 SkASSERT(bitmap); 354 SkASSERT(bitmap->pixelRef()); 355 jobject obj = env->NewObject(gBitmap_class, gBitmap_constructorMethodID, 356 static_cast<jint>(reinterpret_cast<uintptr_t>(bitmap)), 357 buffer, isMutable, ninepatch, layoutbounds, density); 358 hasException(env); // For the side effect of logging. 359 return obj; 360} 361 362jobject GraphicsJNI::createBitmap(JNIEnv* env, SkBitmap* bitmap, bool isMutable, 363 jbyteArray ninepatch, int density) 364{ 365 return createBitmap(env, bitmap, NULL, isMutable, ninepatch, NULL, density); 366} 367 368void GraphicsJNI::reinitBitmap(JNIEnv* env, jobject javaBitmap) 369{ 370 env->CallVoidMethod(javaBitmap, gBitmap_reinitMethodID); 371} 372 373int GraphicsJNI::getBitmapAllocationByteCount(JNIEnv* env, jobject javaBitmap) 374{ 375 return env->CallIntMethod(javaBitmap, gBitmap_getAllocationByteCountMethodID); 376} 377 378jobject GraphicsJNI::createBitmapRegionDecoder(JNIEnv* env, SkBitmapRegionDecoder* bitmap) 379{ 380 SkASSERT(bitmap != NULL); 381 382 jobject obj = env->NewObject(gBitmapRegionDecoder_class, 383 gBitmapRegionDecoder_constructorMethodID, 384 static_cast<jint>(reinterpret_cast<uintptr_t>(bitmap))); 385 hasException(env); // For the side effect of logging. 386 return obj; 387} 388 389jobject GraphicsJNI::createRegion(JNIEnv* env, SkRegion* region) 390{ 391 SkASSERT(region != NULL); 392 jobject obj = env->NewObject(gRegion_class, gRegion_constructorMethodID, 393 static_cast<jint>(reinterpret_cast<uintptr_t>(region)), 0); 394 hasException(env); // For the side effect of logging. 395 return obj; 396} 397 398static JNIEnv* vm2env(JavaVM* vm) 399{ 400 JNIEnv* env = NULL; 401 if (vm->GetEnv((void**)&env, JNI_VERSION_1_4) != JNI_OK || NULL == env) 402 { 403 SkDebugf("------- [%p] vm->GetEnv() failed\n", vm); 404 sk_throw(); 405 } 406 return env; 407} 408 409/////////////////////////////////////////////////////////////////////////////// 410 411AndroidPixelRef::AndroidPixelRef(JNIEnv* env, void* storage, size_t size, jbyteArray storageObj, 412 SkColorTable* ctable) : SkMallocPixelRef(storage, size, ctable, (storageObj == NULL)) { 413 SkASSERT(storage); 414 SkASSERT(env); 415 416 if (env->GetJavaVM(&fVM) != JNI_OK) { 417 SkDebugf("------ [%p] env->GetJavaVM failed\n", env); 418 sk_throw(); 419 } 420 fStorageObj = storageObj; 421 fHasGlobalRef = false; 422 fGlobalRefCnt = 0; 423 424 // If storageObj is NULL, the memory was NOT allocated on the Java heap 425 fOnJavaHeap = (storageObj != NULL); 426 427} 428 429AndroidPixelRef::~AndroidPixelRef() { 430 if (fOnJavaHeap) { 431 JNIEnv* env = vm2env(fVM); 432 433 if (fStorageObj && fHasGlobalRef) { 434 env->DeleteGlobalRef(fStorageObj); 435 } 436 fStorageObj = NULL; 437 } 438} 439 440void AndroidPixelRef::setLocalJNIRef(jbyteArray arr) { 441 if (!fHasGlobalRef) { 442 fStorageObj = arr; 443 } 444} 445 446void AndroidPixelRef::globalRef(void* localref) { 447 if (fOnJavaHeap && sk_atomic_inc(&fGlobalRefCnt) == 0) { 448 JNIEnv *env = vm2env(fVM); 449 450 // If JNI ref was passed, it is always used 451 if (localref) fStorageObj = (jbyteArray) localref; 452 453 if (fStorageObj == NULL) { 454 SkDebugf("No valid local ref to create a JNI global ref\n"); 455 sk_throw(); 456 } 457 if (fHasGlobalRef) { 458 // This should never happen 459 SkDebugf("Already holding a JNI global ref"); 460 sk_throw(); 461 } 462 463 fStorageObj = (jbyteArray) env->NewGlobalRef(fStorageObj); 464 // TODO: Check for failure here 465 fHasGlobalRef = true; 466 } 467 ref(); 468} 469 470void AndroidPixelRef::globalUnref() { 471 if (fOnJavaHeap && sk_atomic_dec(&fGlobalRefCnt) == 1) { 472 JNIEnv *env = vm2env(fVM); 473 if (!fHasGlobalRef) { 474 SkDebugf("We don't have a global ref!"); 475 sk_throw(); 476 } 477 env->DeleteGlobalRef(fStorageObj); 478 fStorageObj = NULL; 479 fHasGlobalRef = false; 480 } 481 unref(); 482} 483 484/////////////////////////////////////////////////////////////////////////////// 485 486extern "C" jbyte* jniGetNonMovableArrayElements(C_JNIEnv* env, jarray arrayObj); 487 488jbyteArray GraphicsJNI::allocateJavaPixelRef(JNIEnv* env, SkBitmap* bitmap, 489 SkColorTable* ctable) { 490 Sk64 size64 = bitmap->getSize64(); 491 if (size64.isNeg() || !size64.is32()) { 492 jniThrowException(env, "java/lang/IllegalArgumentException", 493 "bitmap size exceeds 32bits"); 494 return NULL; 495 } 496 497 size_t size = size64.get32(); 498 jbyteArray arrayObj = env->NewByteArray(size); 499 if (arrayObj) { 500 // TODO: make this work without jniGetNonMovableArrayElements 501 jbyte* addr = jniGetNonMovableArrayElements(&env->functions, arrayObj); 502 if (addr) { 503 SkPixelRef* pr = new AndroidPixelRef(env, (void*) addr, size, arrayObj, ctable); 504 bitmap->setPixelRef(pr)->unref(); 505 // since we're already allocated, we lockPixels right away 506 // HeapAllocator behaves this way too 507 bitmap->lockPixels(); 508 } 509 } 510 511 return arrayObj; 512} 513 514/////////////////////////////////////////////////////////////////////////////// 515 516JavaPixelAllocator::JavaPixelAllocator(JNIEnv* env) 517 : fStorageObj(NULL), 518 fAllocCount(0) { 519 if (env->GetJavaVM(&fVM) != JNI_OK) { 520 SkDebugf("------ [%p] env->GetJavaVM failed\n", env); 521 sk_throw(); 522 } 523} 524 525bool JavaPixelAllocator::allocPixelRef(SkBitmap* bitmap, SkColorTable* ctable) { 526 JNIEnv* env = vm2env(fVM); 527 528 fStorageObj = GraphicsJNI::allocateJavaPixelRef(env, bitmap, ctable); 529 fAllocCount += 1; 530 return fStorageObj != NULL; 531} 532 533//////////////////////////////////////////////////////////////////////////////// 534 535JavaHeapBitmapRef::JavaHeapBitmapRef(JNIEnv* env, SkBitmap* nativeBitmap, jbyteArray buffer) { 536 fEnv = env; 537 fNativeBitmap = nativeBitmap; 538 fBuffer = buffer; 539 540 // If the buffer is NULL, the backing memory wasn't allocated on the Java heap 541 if (fBuffer) { 542 ((AndroidPixelRef*) fNativeBitmap->pixelRef())->setLocalJNIRef(fBuffer); 543 } 544} 545 546JavaHeapBitmapRef::~JavaHeapBitmapRef() { 547 if (fBuffer) { 548 ((AndroidPixelRef*) fNativeBitmap->pixelRef())->setLocalJNIRef(NULL); 549 } 550} 551 552//////////////////////////////////////////////////////////////////////////////// 553 554static jclass make_globalref(JNIEnv* env, const char classname[]) 555{ 556 jclass c = env->FindClass(classname); 557 SkASSERT(c); 558 return (jclass)env->NewGlobalRef(c); 559} 560 561static jfieldID getFieldIDCheck(JNIEnv* env, jclass clazz, 562 const char fieldname[], const char type[]) 563{ 564 jfieldID id = env->GetFieldID(clazz, fieldname, type); 565 SkASSERT(id); 566 return id; 567} 568 569int register_android_graphics_Graphics(JNIEnv* env) 570{ 571 jmethodID m; 572 jclass c; 573 574 gRect_class = make_globalref(env, "android/graphics/Rect"); 575 gRect_leftFieldID = getFieldIDCheck(env, gRect_class, "left", "I"); 576 gRect_topFieldID = getFieldIDCheck(env, gRect_class, "top", "I"); 577 gRect_rightFieldID = getFieldIDCheck(env, gRect_class, "right", "I"); 578 gRect_bottomFieldID = getFieldIDCheck(env, gRect_class, "bottom", "I"); 579 580 gRectF_class = make_globalref(env, "android/graphics/RectF"); 581 gRectF_leftFieldID = getFieldIDCheck(env, gRectF_class, "left", "F"); 582 gRectF_topFieldID = getFieldIDCheck(env, gRectF_class, "top", "F"); 583 gRectF_rightFieldID = getFieldIDCheck(env, gRectF_class, "right", "F"); 584 gRectF_bottomFieldID = getFieldIDCheck(env, gRectF_class, "bottom", "F"); 585 586 gPoint_class = make_globalref(env, "android/graphics/Point"); 587 gPoint_xFieldID = getFieldIDCheck(env, gPoint_class, "x", "I"); 588 gPoint_yFieldID = getFieldIDCheck(env, gPoint_class, "y", "I"); 589 590 gPointF_class = make_globalref(env, "android/graphics/PointF"); 591 gPointF_xFieldID = getFieldIDCheck(env, gPointF_class, "x", "F"); 592 gPointF_yFieldID = getFieldIDCheck(env, gPointF_class, "y", "F"); 593 594 gBitmap_class = make_globalref(env, "android/graphics/Bitmap"); 595 gBitmap_nativeInstanceID = getFieldIDCheck(env, gBitmap_class, "mNativeBitmap", "I"); 596 gBitmap_constructorMethodID = env->GetMethodID(gBitmap_class, "<init>", 597 "(I[BZ[B[II)V"); 598 gBitmap_reinitMethodID = env->GetMethodID(gBitmap_class, "reinit", "()V"); 599 gBitmap_getAllocationByteCountMethodID = env->GetMethodID(gBitmap_class, "getAllocationByteCount", "()I"); 600 gBitmapRegionDecoder_class = make_globalref(env, "android/graphics/BitmapRegionDecoder"); 601 gBitmapRegionDecoder_constructorMethodID = env->GetMethodID(gBitmapRegionDecoder_class, "<init>", "(I)V"); 602 603 gBitmapConfig_class = make_globalref(env, "android/graphics/Bitmap$Config"); 604 gBitmapConfig_nativeInstanceID = getFieldIDCheck(env, gBitmapConfig_class, 605 "nativeInt", "I"); 606 607 gCanvas_class = make_globalref(env, "android/graphics/Canvas"); 608 gCanvas_nativeInstanceID = getFieldIDCheck(env, gCanvas_class, "mNativeCanvas", "I"); 609 610 gPaint_class = make_globalref(env, "android/graphics/Paint"); 611 gPaint_nativeInstanceID = getFieldIDCheck(env, gPaint_class, "mNativePaint", "I"); 612 613 gPicture_class = make_globalref(env, "android/graphics/Picture"); 614 gPicture_nativeInstanceID = getFieldIDCheck(env, gPicture_class, "mNativePicture", "I"); 615 616 gRegion_class = make_globalref(env, "android/graphics/Region"); 617 gRegion_nativeInstanceID = getFieldIDCheck(env, gRegion_class, "mNativeRegion", "I"); 618 gRegion_constructorMethodID = env->GetMethodID(gRegion_class, "<init>", 619 "(II)V"); 620 621 return 0; 622} 623