Graphics.cpp revision a771b9861d11671c780092d35c0062eeefcf37c0
1#define LOG_TAG "GraphicsJNI" 2 3#include "jni.h" 4#include "JNIHelp.h" 5#include "GraphicsJNI.h" 6 7#include "Canvas.h" 8#include "SkCanvas.h" 9#include "SkDevice.h" 10#include "SkMath.h" 11#include "SkRegion.h" 12#include <android_runtime/AndroidRuntime.h> 13 14#include <Caches.h> 15#include <TextureCache.h> 16 17void doThrowNPE(JNIEnv* env) { 18 jniThrowNullPointerException(env, NULL); 19} 20 21void doThrowAIOOBE(JNIEnv* env) { 22 jniThrowException(env, "java/lang/ArrayIndexOutOfBoundsException", NULL); 23} 24 25void doThrowRE(JNIEnv* env, const char* msg) { 26 jniThrowRuntimeException(env, msg); 27} 28 29void doThrowIAE(JNIEnv* env, const char* msg) { 30 jniThrowException(env, "java/lang/IllegalArgumentException", msg); 31} 32 33void doThrowISE(JNIEnv* env, const char* msg) { 34 jniThrowException(env, "java/lang/IllegalStateException", msg); 35} 36 37void doThrowOOME(JNIEnv* env, const char* msg) { 38 jniThrowException(env, "java/lang/OutOfMemoryError", msg); 39} 40 41void doThrowIOE(JNIEnv* env, const char* msg) { 42 jniThrowException(env, "java/io/IOException", msg); 43} 44 45bool GraphicsJNI::hasException(JNIEnv *env) { 46 if (env->ExceptionCheck() != 0) { 47 ALOGE("*** Uncaught exception returned from Java call!\n"); 48 env->ExceptionDescribe(); 49 return true; 50 } 51 return false; 52} 53 54/////////////////////////////////////////////////////////////////////////////// 55 56AutoJavaFloatArray::AutoJavaFloatArray(JNIEnv* env, jfloatArray array, 57 int minLength, JNIAccess access) 58: fEnv(env), fArray(array), fPtr(NULL), fLen(0) { 59 SkASSERT(env); 60 if (array) { 61 fLen = env->GetArrayLength(array); 62 if (fLen < minLength) { 63 sk_throw(); 64 } 65 fPtr = env->GetFloatArrayElements(array, NULL); 66 } 67 fReleaseMode = (access == kRO_JNIAccess) ? JNI_ABORT : 0; 68} 69 70AutoJavaFloatArray::~AutoJavaFloatArray() { 71 if (fPtr) { 72 fEnv->ReleaseFloatArrayElements(fArray, fPtr, fReleaseMode); 73 } 74} 75 76AutoJavaIntArray::AutoJavaIntArray(JNIEnv* env, jintArray array, 77 int minLength) 78: fEnv(env), fArray(array), fPtr(NULL), fLen(0) { 79 SkASSERT(env); 80 if (array) { 81 fLen = env->GetArrayLength(array); 82 if (fLen < minLength) { 83 sk_throw(); 84 } 85 fPtr = env->GetIntArrayElements(array, NULL); 86 } 87} 88 89AutoJavaIntArray::~AutoJavaIntArray() { 90 if (fPtr) { 91 fEnv->ReleaseIntArrayElements(fArray, fPtr, 0); 92 } 93} 94 95AutoJavaShortArray::AutoJavaShortArray(JNIEnv* env, jshortArray array, 96 int minLength, JNIAccess access) 97: fEnv(env), fArray(array), fPtr(NULL), fLen(0) { 98 SkASSERT(env); 99 if (array) { 100 fLen = env->GetArrayLength(array); 101 if (fLen < minLength) { 102 sk_throw(); 103 } 104 fPtr = env->GetShortArrayElements(array, NULL); 105 } 106 fReleaseMode = (access == kRO_JNIAccess) ? JNI_ABORT : 0; 107} 108 109AutoJavaShortArray::~AutoJavaShortArray() { 110 if (fPtr) { 111 fEnv->ReleaseShortArrayElements(fArray, fPtr, fReleaseMode); 112 } 113} 114 115AutoJavaByteArray::AutoJavaByteArray(JNIEnv* env, jbyteArray array, 116 int minLength) 117: fEnv(env), fArray(array), fPtr(NULL), fLen(0) { 118 SkASSERT(env); 119 if (array) { 120 fLen = env->GetArrayLength(array); 121 if (fLen < minLength) { 122 sk_throw(); 123 } 124 fPtr = env->GetByteArrayElements(array, NULL); 125 } 126} 127 128AutoJavaByteArray::~AutoJavaByteArray() { 129 if (fPtr) { 130 fEnv->ReleaseByteArrayElements(fArray, fPtr, 0); 131 } 132} 133 134/////////////////////////////////////////////////////////////////////////////// 135 136static jclass gRect_class; 137static jfieldID gRect_leftFieldID; 138static jfieldID gRect_topFieldID; 139static jfieldID gRect_rightFieldID; 140static jfieldID gRect_bottomFieldID; 141 142static jclass gRectF_class; 143static jfieldID gRectF_leftFieldID; 144static jfieldID gRectF_topFieldID; 145static jfieldID gRectF_rightFieldID; 146static jfieldID gRectF_bottomFieldID; 147 148static jclass gPoint_class; 149static jfieldID gPoint_xFieldID; 150static jfieldID gPoint_yFieldID; 151 152static jclass gPointF_class; 153static jfieldID gPointF_xFieldID; 154static jfieldID gPointF_yFieldID; 155 156static jclass gBitmap_class; 157static jfieldID gBitmap_skBitmapPtr; 158static jmethodID gBitmap_constructorMethodID; 159static jmethodID gBitmap_reinitMethodID; 160static jmethodID gBitmap_getAllocationByteCountMethodID; 161 162static jclass gBitmapConfig_class; 163static jfieldID gBitmapConfig_nativeInstanceID; 164 165static jclass gBitmapRegionDecoder_class; 166static jmethodID gBitmapRegionDecoder_constructorMethodID; 167 168static jclass gCanvas_class; 169static jfieldID gCanvas_nativeInstanceID; 170 171static jclass gPicture_class; 172static jfieldID gPicture_nativeInstanceID; 173 174static jclass gRegion_class; 175static jfieldID gRegion_nativeInstanceID; 176static jmethodID gRegion_constructorMethodID; 177 178static jclass gByte_class; 179static jobject gVMRuntime; 180static jclass gVMRuntime_class; 181static jmethodID gVMRuntime_newNonMovableArray; 182static jmethodID gVMRuntime_addressOf; 183 184/////////////////////////////////////////////////////////////////////////////// 185 186void GraphicsJNI::get_jrect(JNIEnv* env, jobject obj, int* L, int* T, int* R, int* B) 187{ 188 SkASSERT(env->IsInstanceOf(obj, gRect_class)); 189 190 *L = env->GetIntField(obj, gRect_leftFieldID); 191 *T = env->GetIntField(obj, gRect_topFieldID); 192 *R = env->GetIntField(obj, gRect_rightFieldID); 193 *B = env->GetIntField(obj, gRect_bottomFieldID); 194} 195 196void GraphicsJNI::set_jrect(JNIEnv* env, jobject obj, int L, int T, int R, int B) 197{ 198 SkASSERT(env->IsInstanceOf(obj, gRect_class)); 199 200 env->SetIntField(obj, gRect_leftFieldID, L); 201 env->SetIntField(obj, gRect_topFieldID, T); 202 env->SetIntField(obj, gRect_rightFieldID, R); 203 env->SetIntField(obj, gRect_bottomFieldID, B); 204} 205 206SkIRect* GraphicsJNI::jrect_to_irect(JNIEnv* env, jobject obj, SkIRect* ir) 207{ 208 SkASSERT(env->IsInstanceOf(obj, gRect_class)); 209 210 ir->set(env->GetIntField(obj, gRect_leftFieldID), 211 env->GetIntField(obj, gRect_topFieldID), 212 env->GetIntField(obj, gRect_rightFieldID), 213 env->GetIntField(obj, gRect_bottomFieldID)); 214 return ir; 215} 216 217void GraphicsJNI::irect_to_jrect(const SkIRect& ir, JNIEnv* env, jobject obj) 218{ 219 SkASSERT(env->IsInstanceOf(obj, gRect_class)); 220 221 env->SetIntField(obj, gRect_leftFieldID, ir.fLeft); 222 env->SetIntField(obj, gRect_topFieldID, ir.fTop); 223 env->SetIntField(obj, gRect_rightFieldID, ir.fRight); 224 env->SetIntField(obj, gRect_bottomFieldID, ir.fBottom); 225} 226 227SkRect* GraphicsJNI::jrectf_to_rect(JNIEnv* env, jobject obj, SkRect* r) 228{ 229 SkASSERT(env->IsInstanceOf(obj, gRectF_class)); 230 231 r->set(env->GetFloatField(obj, gRectF_leftFieldID), 232 env->GetFloatField(obj, gRectF_topFieldID), 233 env->GetFloatField(obj, gRectF_rightFieldID), 234 env->GetFloatField(obj, gRectF_bottomFieldID)); 235 return r; 236} 237 238SkRect* GraphicsJNI::jrect_to_rect(JNIEnv* env, jobject obj, SkRect* r) 239{ 240 SkASSERT(env->IsInstanceOf(obj, gRect_class)); 241 242 r->set(SkIntToScalar(env->GetIntField(obj, gRect_leftFieldID)), 243 SkIntToScalar(env->GetIntField(obj, gRect_topFieldID)), 244 SkIntToScalar(env->GetIntField(obj, gRect_rightFieldID)), 245 SkIntToScalar(env->GetIntField(obj, gRect_bottomFieldID))); 246 return r; 247} 248 249void GraphicsJNI::rect_to_jrectf(const SkRect& r, JNIEnv* env, jobject obj) 250{ 251 SkASSERT(env->IsInstanceOf(obj, gRectF_class)); 252 253 env->SetFloatField(obj, gRectF_leftFieldID, SkScalarToFloat(r.fLeft)); 254 env->SetFloatField(obj, gRectF_topFieldID, SkScalarToFloat(r.fTop)); 255 env->SetFloatField(obj, gRectF_rightFieldID, SkScalarToFloat(r.fRight)); 256 env->SetFloatField(obj, gRectF_bottomFieldID, SkScalarToFloat(r.fBottom)); 257} 258 259SkIPoint* GraphicsJNI::jpoint_to_ipoint(JNIEnv* env, jobject obj, SkIPoint* point) 260{ 261 SkASSERT(env->IsInstanceOf(obj, gPoint_class)); 262 263 point->set(env->GetIntField(obj, gPoint_xFieldID), 264 env->GetIntField(obj, gPoint_yFieldID)); 265 return point; 266} 267 268void GraphicsJNI::ipoint_to_jpoint(const SkIPoint& ir, JNIEnv* env, jobject obj) 269{ 270 SkASSERT(env->IsInstanceOf(obj, gPoint_class)); 271 272 env->SetIntField(obj, gPoint_xFieldID, ir.fX); 273 env->SetIntField(obj, gPoint_yFieldID, ir.fY); 274} 275 276SkPoint* GraphicsJNI::jpointf_to_point(JNIEnv* env, jobject obj, SkPoint* point) 277{ 278 SkASSERT(env->IsInstanceOf(obj, gPointF_class)); 279 280 point->set(env->GetIntField(obj, gPointF_xFieldID), 281 env->GetIntField(obj, gPointF_yFieldID)); 282 return point; 283} 284 285void GraphicsJNI::point_to_jpointf(const SkPoint& r, JNIEnv* env, jobject obj) 286{ 287 SkASSERT(env->IsInstanceOf(obj, gPointF_class)); 288 289 env->SetFloatField(obj, gPointF_xFieldID, SkScalarToFloat(r.fX)); 290 env->SetFloatField(obj, gPointF_yFieldID, SkScalarToFloat(r.fY)); 291} 292 293// This enum must keep these int values, to match the int values 294// in the java Bitmap.Config enum. 295enum LegacyBitmapConfig { 296 kNo_LegacyBitmapConfig = 0, 297 kA8_LegacyBitmapConfig = 1, 298 kIndex8_LegacyBitmapConfig = 2, 299 kRGB_565_LegacyBitmapConfig = 3, 300 kARGB_4444_LegacyBitmapConfig = 4, 301 kARGB_8888_LegacyBitmapConfig = 5, 302 303 kLastEnum_LegacyBitmapConfig = kARGB_8888_LegacyBitmapConfig 304}; 305 306jint GraphicsJNI::colorTypeToLegacyBitmapConfig(SkColorType colorType) { 307 switch (colorType) { 308 case kN32_SkColorType: 309 return kARGB_8888_LegacyBitmapConfig; 310 case kARGB_4444_SkColorType: 311 return kARGB_4444_LegacyBitmapConfig; 312 case kRGB_565_SkColorType: 313 return kRGB_565_LegacyBitmapConfig; 314 case kIndex_8_SkColorType: 315 return kIndex8_LegacyBitmapConfig; 316 case kAlpha_8_SkColorType: 317 return kA8_LegacyBitmapConfig; 318 case kUnknown_SkColorType: 319 default: 320 break; 321 } 322 return kNo_LegacyBitmapConfig; 323} 324 325SkColorType GraphicsJNI::legacyBitmapConfigToColorType(jint legacyConfig) { 326 const uint8_t gConfig2ColorType[] = { 327 kUnknown_SkColorType, 328 kAlpha_8_SkColorType, 329 kIndex_8_SkColorType, 330 kRGB_565_SkColorType, 331 kARGB_4444_SkColorType, 332 kN32_SkColorType 333 }; 334 335 if (legacyConfig < 0 || legacyConfig > kLastEnum_LegacyBitmapConfig) { 336 legacyConfig = kNo_LegacyBitmapConfig; 337 } 338 return static_cast<SkColorType>(gConfig2ColorType[legacyConfig]); 339} 340 341SkBitmap* GraphicsJNI::getSkBitmapDeprecated(JNIEnv* env, jobject bitmap) { 342 SkASSERT(env); 343 SkASSERT(bitmap); 344 SkASSERT(env->IsInstanceOf(bitmap, gBitmap_class)); 345 jlong bitmapHandle = env->GetLongField(bitmap, gBitmap_skBitmapPtr); 346 SkBitmap* b = reinterpret_cast<SkBitmap*>(bitmapHandle); 347 SkASSERT(b); 348 return b; 349} 350 351void GraphicsJNI::getSkBitmap(JNIEnv* env, jobject bitmap, SkBitmap* outBitmap) { 352 SkPixelRef* pixelRef = getSkPixelRef(env, bitmap); 353 // TODO: pixelRef->rowBytes() is only valid if the pixels are locked 354 // (which is currently always true on android), switch this to querying 355 // from the wrapper once that exists instead 356 outBitmap->setInfo(pixelRef->info(), pixelRef->rowBytes()); 357 outBitmap->setPixelRef(pixelRef); 358} 359 360SkPixelRef* GraphicsJNI::getSkPixelRef(JNIEnv* env, jobject bitmap) { 361 jlong bitmapHandle = env->GetLongField(bitmap, gBitmap_skBitmapPtr); 362 SkBitmap* b = reinterpret_cast<SkBitmap*>(bitmapHandle); 363 return b->pixelRef(); 364} 365 366SkColorType GraphicsJNI::getNativeBitmapColorType(JNIEnv* env, jobject jconfig) { 367 SkASSERT(env); 368 if (NULL == jconfig) { 369 return kUnknown_SkColorType; 370 } 371 SkASSERT(env->IsInstanceOf(jconfig, gBitmapConfig_class)); 372 int c = env->GetIntField(jconfig, gBitmapConfig_nativeInstanceID); 373 return legacyBitmapConfigToColorType(c); 374} 375 376SkCanvas* GraphicsJNI::getNativeCanvas(JNIEnv* env, jobject canvas) { 377 SkASSERT(env); 378 SkASSERT(canvas); 379 SkASSERT(env->IsInstanceOf(canvas, gCanvas_class)); 380 jlong canvasHandle = env->GetLongField(canvas, gCanvas_nativeInstanceID); 381 if (!canvasHandle) { 382 return NULL; 383 } 384 SkCanvas* c = reinterpret_cast<android::Canvas*>(canvasHandle)->asSkCanvas(); 385 SkASSERT(c); 386 return c; 387} 388 389SkRegion* GraphicsJNI::getNativeRegion(JNIEnv* env, jobject region) 390{ 391 SkASSERT(env); 392 SkASSERT(region); 393 SkASSERT(env->IsInstanceOf(region, gRegion_class)); 394 jlong regionHandle = env->GetLongField(region, gRegion_nativeInstanceID); 395 SkRegion* r = reinterpret_cast<SkRegion*>(regionHandle); 396 SkASSERT(r); 397 return r; 398} 399 400/////////////////////////////////////////////////////////////////////////////////////////// 401 402// Assert that bitmap's SkAlphaType is consistent with isPremultiplied. 403static void assert_premultiplied(const SkBitmap& bitmap, bool isPremultiplied) { 404 // kOpaque_SkAlphaType and kIgnore_SkAlphaType mean that isPremultiplied is 405 // irrelevant. This just tests to ensure that the SkAlphaType is not 406 // opposite of isPremultiplied. 407 if (isPremultiplied) { 408 SkASSERT(bitmap.alphaType() != kUnpremul_SkAlphaType); 409 } else { 410 SkASSERT(bitmap.alphaType() != kPremul_SkAlphaType); 411 } 412} 413 414jobject GraphicsJNI::createBitmap(JNIEnv* env, SkBitmap* bitmap, jbyteArray buffer, 415 int bitmapCreateFlags, jbyteArray ninePatchChunk, jobject ninePatchInsets, int density) 416{ 417 SkASSERT(bitmap); 418 SkASSERT(bitmap->pixelRef()); 419 SkASSERT(!env->ExceptionCheck()); 420 bool isMutable = bitmapCreateFlags & kBitmapCreateFlag_Mutable; 421 bool isPremultiplied = bitmapCreateFlags & kBitmapCreateFlag_Premultiplied; 422 423 // The caller needs to have already set the alpha type properly, so the 424 // native SkBitmap stays in sync with the Java Bitmap. 425 assert_premultiplied(*bitmap, isPremultiplied); 426 427 jobject obj = env->NewObject(gBitmap_class, gBitmap_constructorMethodID, 428 reinterpret_cast<jlong>(bitmap), buffer, 429 bitmap->width(), bitmap->height(), density, isMutable, isPremultiplied, 430 ninePatchChunk, ninePatchInsets); 431 hasException(env); // For the side effect of logging. 432 return obj; 433} 434 435void GraphicsJNI::reinitBitmap(JNIEnv* env, jobject javaBitmap, SkBitmap* bitmap, 436 bool isPremultiplied) 437{ 438 // The caller needs to have already set the alpha type properly, so the 439 // native SkBitmap stays in sync with the Java Bitmap. 440 assert_premultiplied(*bitmap, isPremultiplied); 441 442 env->CallVoidMethod(javaBitmap, gBitmap_reinitMethodID, 443 bitmap->width(), bitmap->height(), isPremultiplied); 444} 445 446int GraphicsJNI::getBitmapAllocationByteCount(JNIEnv* env, jobject javaBitmap) 447{ 448 return env->CallIntMethod(javaBitmap, gBitmap_getAllocationByteCountMethodID); 449} 450 451jobject GraphicsJNI::createBitmapRegionDecoder(JNIEnv* env, SkBitmapRegionDecoder* bitmap) 452{ 453 SkASSERT(bitmap != NULL); 454 455 jobject obj = env->NewObject(gBitmapRegionDecoder_class, 456 gBitmapRegionDecoder_constructorMethodID, 457 reinterpret_cast<jlong>(bitmap)); 458 hasException(env); // For the side effect of logging. 459 return obj; 460} 461 462jobject GraphicsJNI::createRegion(JNIEnv* env, SkRegion* region) 463{ 464 SkASSERT(region != NULL); 465 jobject obj = env->NewObject(gRegion_class, gRegion_constructorMethodID, 466 reinterpret_cast<jlong>(region), 0); 467 hasException(env); // For the side effect of logging. 468 return obj; 469} 470 471static JNIEnv* vm2env(JavaVM* vm) 472{ 473 JNIEnv* env = NULL; 474 if (vm->GetEnv((void**)&env, JNI_VERSION_1_4) != JNI_OK || NULL == env) 475 { 476 SkDebugf("------- [%p] vm->GetEnv() failed\n", vm); 477 sk_throw(); 478 } 479 return env; 480} 481 482/////////////////////////////////////////////////////////////////////////////// 483 484AndroidPixelRef::AndroidPixelRef(JNIEnv* env, const SkImageInfo& info, void* storage, 485 size_t rowBytes, jbyteArray storageObj, SkColorTable* ctable) : 486 SkMallocPixelRef(info, storage, rowBytes, ctable, (storageObj == NULL)), 487 fWrappedPixelRef(NULL) { 488 SkASSERT(storage); 489 SkASSERT(storageObj); 490 SkASSERT(env); 491 492 if (env->GetJavaVM(&fVM) != JNI_OK) { 493 SkDebugf("------ [%p] env->GetJavaVM failed\n", env); 494 sk_throw(); 495 } 496 497 fStorageObj = (jbyteArray) env->NewGlobalRef(storageObj); 498} 499 500AndroidPixelRef::AndroidPixelRef(AndroidPixelRef& wrappedPixelRef, const SkImageInfo& info, 501 size_t rowBytes, SkColorTable* ctable) : 502 SkMallocPixelRef(info, wrappedPixelRef.getAddr(), rowBytes, ctable, false), 503 fWrappedPixelRef(wrappedPixelRef.fWrappedPixelRef ? 504 wrappedPixelRef.fWrappedPixelRef : &wrappedPixelRef) 505{ 506 SkASSERT(fWrappedPixelRef); 507 SkSafeRef(fWrappedPixelRef); 508 509 // don't need to initialize this, as all the relevant logic delegates to the wrapped ref 510 fStorageObj = NULL; 511} 512 513AndroidPixelRef::~AndroidPixelRef() { 514 if (fWrappedPixelRef) { 515 SkSafeUnref(fWrappedPixelRef); 516 } else { 517 SkASSERT(fStorageObj); 518 JNIEnv* env = vm2env(fVM); 519 env->DeleteGlobalRef(fStorageObj); 520 } 521 522 if (android::uirenderer::Caches::hasInstance()) { 523 android::uirenderer::Caches::getInstance().textureCache.releaseTexture(getStableID()); 524 } 525} 526 527/////////////////////////////////////////////////////////////////////////////// 528 529static bool computeAllocationSize(const SkBitmap& bitmap, size_t* size) { 530 int32_t rowBytes32 = SkToS32(bitmap.rowBytes()); 531 int64_t bigSize = (int64_t)bitmap.height() * rowBytes32; 532 if (rowBytes32 < 0 || !sk_64_isS32(bigSize)) { 533 return false; // allocation will be too large 534 } 535 536 *size = sk_64_asS32(bigSize); 537 return true; 538} 539 540jbyteArray GraphicsJNI::allocateJavaPixelRef(JNIEnv* env, SkBitmap* bitmap, 541 SkColorTable* ctable) { 542 const SkImageInfo& info = bitmap->info(); 543 if (info.fColorType == kUnknown_SkColorType) { 544 doThrowIAE(env, "unknown bitmap configuration"); 545 return NULL; 546 } 547 548 size_t size; 549 if (!computeAllocationSize(*bitmap, &size)) { 550 return NULL; 551 } 552 553 // we must respect the rowBytes value already set on the bitmap instead of 554 // attempting to compute our own. 555 const size_t rowBytes = bitmap->rowBytes(); 556 557 jbyteArray arrayObj = (jbyteArray) env->CallObjectMethod(gVMRuntime, 558 gVMRuntime_newNonMovableArray, 559 gByte_class, size); 560 if (env->ExceptionCheck() != 0) { 561 return NULL; 562 } 563 SkASSERT(arrayObj); 564 jbyte* addr = (jbyte*) env->CallLongMethod(gVMRuntime, gVMRuntime_addressOf, arrayObj); 565 if (env->ExceptionCheck() != 0) { 566 return NULL; 567 } 568 SkASSERT(addr); 569 SkPixelRef* pr = new AndroidPixelRef(env, info, (void*) addr, rowBytes, arrayObj, ctable); 570 bitmap->setPixelRef(pr)->unref(); 571 // since we're already allocated, we lockPixels right away 572 // HeapAllocator behaves this way too 573 bitmap->lockPixels(); 574 575 return arrayObj; 576} 577 578struct AndroidPixelRefContext { 579 int32_t stableID; 580}; 581 582static void allocatePixelsReleaseProc(void* ptr, void* ctx) { 583 AndroidPixelRefContext* context = (AndroidPixelRefContext*)ctx; 584 if (android::uirenderer::Caches::hasInstance()) { 585 android::uirenderer::Caches::getInstance().textureCache.releaseTexture(context->stableID); 586 } 587 588 sk_free(ptr); 589 delete context; 590} 591 592bool GraphicsJNI::allocatePixels(JNIEnv* env, SkBitmap* bitmap, SkColorTable* ctable) { 593 const SkImageInfo& info = bitmap->info(); 594 if (info.fColorType == kUnknown_SkColorType) { 595 doThrowIAE(env, "unknown bitmap configuration"); 596 return NULL; 597 } 598 599 size_t size; 600 if (!computeAllocationSize(*bitmap, &size)) { 601 return false; 602 } 603 604 // we must respect the rowBytes value already set on the bitmap instead of 605 // attempting to compute our own. 606 const size_t rowBytes = bitmap->rowBytes(); 607 608 void* addr = sk_malloc_flags(size, 0); 609 if (NULL == addr) { 610 return false; 611 } 612 613 AndroidPixelRefContext* context = new AndroidPixelRefContext; 614 SkMallocPixelRef* pr = SkMallocPixelRef::NewWithProc(info, rowBytes, ctable, addr, 615 &allocatePixelsReleaseProc, context); 616 if (!pr) { 617 delete context; 618 return false; 619 } 620 621 // set the stableID in the context so that it can be used later in 622 // allocatePixelsReleaseProc to remove the texture from the cache. 623 context->stableID = pr->getStableID(); 624 625 bitmap->setPixelRef(pr)->unref(); 626 // since we're already allocated, we can lockPixels right away 627 bitmap->lockPixels(); 628 629 return true; 630} 631 632/////////////////////////////////////////////////////////////////////////////// 633 634JavaPixelAllocator::JavaPixelAllocator(JNIEnv* env) 635 : fStorageObj(NULL), 636 fAllocCount(0) { 637 if (env->GetJavaVM(&fVM) != JNI_OK) { 638 SkDebugf("------ [%p] env->GetJavaVM failed\n", env); 639 sk_throw(); 640 } 641} 642 643bool JavaPixelAllocator::allocPixelRef(SkBitmap* bitmap, SkColorTable* ctable) { 644 JNIEnv* env = vm2env(fVM); 645 646 fStorageObj = GraphicsJNI::allocateJavaPixelRef(env, bitmap, ctable); 647 fAllocCount += 1; 648 return fStorageObj != NULL; 649} 650 651//////////////////////////////////////////////////////////////////////////////// 652 653static jclass make_globalref(JNIEnv* env, const char classname[]) 654{ 655 jclass c = env->FindClass(classname); 656 SkASSERT(c); 657 return (jclass) env->NewGlobalRef(c); 658} 659 660static jfieldID getFieldIDCheck(JNIEnv* env, jclass clazz, 661 const char fieldname[], const char type[]) 662{ 663 jfieldID id = env->GetFieldID(clazz, fieldname, type); 664 SkASSERT(id); 665 return id; 666} 667 668int register_android_graphics_Graphics(JNIEnv* env) 669{ 670 jmethodID m; 671 jclass c; 672 673 gRect_class = make_globalref(env, "android/graphics/Rect"); 674 gRect_leftFieldID = getFieldIDCheck(env, gRect_class, "left", "I"); 675 gRect_topFieldID = getFieldIDCheck(env, gRect_class, "top", "I"); 676 gRect_rightFieldID = getFieldIDCheck(env, gRect_class, "right", "I"); 677 gRect_bottomFieldID = getFieldIDCheck(env, gRect_class, "bottom", "I"); 678 679 gRectF_class = make_globalref(env, "android/graphics/RectF"); 680 gRectF_leftFieldID = getFieldIDCheck(env, gRectF_class, "left", "F"); 681 gRectF_topFieldID = getFieldIDCheck(env, gRectF_class, "top", "F"); 682 gRectF_rightFieldID = getFieldIDCheck(env, gRectF_class, "right", "F"); 683 gRectF_bottomFieldID = getFieldIDCheck(env, gRectF_class, "bottom", "F"); 684 685 gPoint_class = make_globalref(env, "android/graphics/Point"); 686 gPoint_xFieldID = getFieldIDCheck(env, gPoint_class, "x", "I"); 687 gPoint_yFieldID = getFieldIDCheck(env, gPoint_class, "y", "I"); 688 689 gPointF_class = make_globalref(env, "android/graphics/PointF"); 690 gPointF_xFieldID = getFieldIDCheck(env, gPointF_class, "x", "F"); 691 gPointF_yFieldID = getFieldIDCheck(env, gPointF_class, "y", "F"); 692 693 gBitmap_class = make_globalref(env, "android/graphics/Bitmap"); 694 gBitmap_skBitmapPtr = getFieldIDCheck(env, gBitmap_class, "mSkBitmapPtr", "J"); 695 gBitmap_constructorMethodID = env->GetMethodID(gBitmap_class, "<init>", "(J[BIIIZZ[BLandroid/graphics/NinePatch$InsetStruct;)V"); 696 gBitmap_reinitMethodID = env->GetMethodID(gBitmap_class, "reinit", "(IIZ)V"); 697 gBitmap_getAllocationByteCountMethodID = env->GetMethodID(gBitmap_class, "getAllocationByteCount", "()I"); 698 gBitmapRegionDecoder_class = make_globalref(env, "android/graphics/BitmapRegionDecoder"); 699 gBitmapRegionDecoder_constructorMethodID = env->GetMethodID(gBitmapRegionDecoder_class, "<init>", "(J)V"); 700 701 gBitmapConfig_class = make_globalref(env, "android/graphics/Bitmap$Config"); 702 gBitmapConfig_nativeInstanceID = getFieldIDCheck(env, gBitmapConfig_class, 703 "nativeInt", "I"); 704 705 gCanvas_class = make_globalref(env, "android/graphics/Canvas"); 706 gCanvas_nativeInstanceID = getFieldIDCheck(env, gCanvas_class, "mNativeCanvasWrapper", "J"); 707 708 gPicture_class = make_globalref(env, "android/graphics/Picture"); 709 gPicture_nativeInstanceID = getFieldIDCheck(env, gPicture_class, "mNativePicture", "J"); 710 711 gRegion_class = make_globalref(env, "android/graphics/Region"); 712 gRegion_nativeInstanceID = getFieldIDCheck(env, gRegion_class, "mNativeRegion", "J"); 713 gRegion_constructorMethodID = env->GetMethodID(gRegion_class, "<init>", 714 "(JI)V"); 715 716 c = env->FindClass("java/lang/Byte"); 717 gByte_class = (jclass) env->NewGlobalRef( 718 env->GetStaticObjectField(c, env->GetStaticFieldID(c, "TYPE", "Ljava/lang/Class;"))); 719 720 gVMRuntime_class = make_globalref(env, "dalvik/system/VMRuntime"); 721 m = env->GetStaticMethodID(gVMRuntime_class, "getRuntime", "()Ldalvik/system/VMRuntime;"); 722 gVMRuntime = env->NewGlobalRef(env->CallStaticObjectMethod(gVMRuntime_class, m)); 723 gVMRuntime_newNonMovableArray = env->GetMethodID(gVMRuntime_class, "newNonMovableArray", 724 "(Ljava/lang/Class;I)Ljava/lang/Object;"); 725 gVMRuntime_addressOf = env->GetMethodID(gVMRuntime_class, "addressOf", "(Ljava/lang/Object;)J"); 726 727 return 0; 728} 729