Graphics.cpp revision 95648b8a590995e57948ff2fd57d234bdbf30be0
1#define LOG_TAG "GraphicsJNI" 2 3#include <unistd.h> 4#include <sys/mman.h> 5 6#include "jni.h" 7#include "JNIHelp.h" 8#include "GraphicsJNI.h" 9#include "core_jni_helpers.h" 10 11#include "SkCanvas.h" 12#include "SkMath.h" 13#include "SkRegion.h" 14#include <android_runtime/AndroidRuntime.h> 15#include <cutils/ashmem.h> 16#include <hwui/Canvas.h> 17 18#include <Caches.h> 19#include <TextureCache.h> 20 21using namespace android; 22 23void doThrowNPE(JNIEnv* env) { 24 jniThrowNullPointerException(env, NULL); 25} 26 27void doThrowAIOOBE(JNIEnv* env) { 28 jniThrowException(env, "java/lang/ArrayIndexOutOfBoundsException", NULL); 29} 30 31void doThrowRE(JNIEnv* env, const char* msg) { 32 jniThrowRuntimeException(env, msg); 33} 34 35void doThrowIAE(JNIEnv* env, const char* msg) { 36 jniThrowException(env, "java/lang/IllegalArgumentException", msg); 37} 38 39void doThrowISE(JNIEnv* env, const char* msg) { 40 jniThrowException(env, "java/lang/IllegalStateException", msg); 41} 42 43void doThrowOOME(JNIEnv* env, const char* msg) { 44 jniThrowException(env, "java/lang/OutOfMemoryError", msg); 45} 46 47void doThrowIOE(JNIEnv* env, const char* msg) { 48 jniThrowException(env, "java/io/IOException", msg); 49} 50 51bool GraphicsJNI::hasException(JNIEnv *env) { 52 if (env->ExceptionCheck() != 0) { 53 ALOGE("*** Uncaught exception returned from Java call!\n"); 54 env->ExceptionDescribe(); 55 return true; 56 } 57 return false; 58} 59 60/////////////////////////////////////////////////////////////////////////////// 61 62AutoJavaFloatArray::AutoJavaFloatArray(JNIEnv* env, jfloatArray array, 63 int minLength, JNIAccess access) 64: fEnv(env), fArray(array), fPtr(NULL), fLen(0) { 65 SkASSERT(env); 66 if (array) { 67 fLen = env->GetArrayLength(array); 68 if (fLen < minLength) { 69 sk_throw(); 70 } 71 fPtr = env->GetFloatArrayElements(array, NULL); 72 } 73 fReleaseMode = (access == kRO_JNIAccess) ? JNI_ABORT : 0; 74} 75 76AutoJavaFloatArray::~AutoJavaFloatArray() { 77 if (fPtr) { 78 fEnv->ReleaseFloatArrayElements(fArray, fPtr, fReleaseMode); 79 } 80} 81 82AutoJavaIntArray::AutoJavaIntArray(JNIEnv* env, jintArray array, 83 int minLength) 84: fEnv(env), fArray(array), fPtr(NULL), fLen(0) { 85 SkASSERT(env); 86 if (array) { 87 fLen = env->GetArrayLength(array); 88 if (fLen < minLength) { 89 sk_throw(); 90 } 91 fPtr = env->GetIntArrayElements(array, NULL); 92 } 93} 94 95AutoJavaIntArray::~AutoJavaIntArray() { 96 if (fPtr) { 97 fEnv->ReleaseIntArrayElements(fArray, fPtr, 0); 98 } 99} 100 101AutoJavaShortArray::AutoJavaShortArray(JNIEnv* env, jshortArray array, 102 int minLength, JNIAccess access) 103: fEnv(env), fArray(array), fPtr(NULL), fLen(0) { 104 SkASSERT(env); 105 if (array) { 106 fLen = env->GetArrayLength(array); 107 if (fLen < minLength) { 108 sk_throw(); 109 } 110 fPtr = env->GetShortArrayElements(array, NULL); 111 } 112 fReleaseMode = (access == kRO_JNIAccess) ? JNI_ABORT : 0; 113} 114 115AutoJavaShortArray::~AutoJavaShortArray() { 116 if (fPtr) { 117 fEnv->ReleaseShortArrayElements(fArray, fPtr, fReleaseMode); 118 } 119} 120 121AutoJavaByteArray::AutoJavaByteArray(JNIEnv* env, jbyteArray array, 122 int minLength) 123: fEnv(env), fArray(array), fPtr(NULL), fLen(0) { 124 SkASSERT(env); 125 if (array) { 126 fLen = env->GetArrayLength(array); 127 if (fLen < minLength) { 128 sk_throw(); 129 } 130 fPtr = env->GetByteArrayElements(array, NULL); 131 } 132} 133 134AutoJavaByteArray::~AutoJavaByteArray() { 135 if (fPtr) { 136 fEnv->ReleaseByteArrayElements(fArray, fPtr, 0); 137 } 138} 139 140/////////////////////////////////////////////////////////////////////////////// 141 142static jclass gRect_class; 143static jfieldID gRect_leftFieldID; 144static jfieldID gRect_topFieldID; 145static jfieldID gRect_rightFieldID; 146static jfieldID gRect_bottomFieldID; 147 148static jclass gRectF_class; 149static jfieldID gRectF_leftFieldID; 150static jfieldID gRectF_topFieldID; 151static jfieldID gRectF_rightFieldID; 152static jfieldID gRectF_bottomFieldID; 153 154static jclass gPoint_class; 155static jfieldID gPoint_xFieldID; 156static jfieldID gPoint_yFieldID; 157 158static jclass gPointF_class; 159static jfieldID gPointF_xFieldID; 160static jfieldID gPointF_yFieldID; 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 184static jfieldID gTransferParams_aFieldID; 185static jfieldID gTransferParams_bFieldID; 186static jfieldID gTransferParams_cFieldID; 187static jfieldID gTransferParams_dFieldID; 188static jfieldID gTransferParams_eFieldID; 189static jfieldID gTransferParams_fFieldID; 190static jfieldID gTransferParams_gFieldID; 191 192static jclass gColorSpace_class; 193static jfieldID gColorSpace_IlluminantD50FieldID; 194static jmethodID gColorSpace_adaptMethodID; 195static jmethodID gColorSpace_getMethodID; 196static jmethodID gColorSpace_matchMethodID; 197 198static jclass gColorSpaceRGB_class; 199static jmethodID gColorSpaceRGB_getTransferParametersMethodID; 200static jmethodID gColorSpaceRGB_getTransformMethodID; 201static jmethodID gColorSpaceRGB_constructorMethodID; 202 203static jclass gColorSpace_Named_class; 204static jfieldID gColorSpace_Named_sRGBFieldID; 205static jfieldID gColorSpace_Named_LinearExtendedSRGBFieldID; 206 207static jclass gTransferParameters_class; 208static jmethodID gTransferParameters_constructorMethodID; 209 210/////////////////////////////////////////////////////////////////////////////// 211 212void GraphicsJNI::get_jrect(JNIEnv* env, jobject obj, int* L, int* T, int* R, int* B) 213{ 214 SkASSERT(env->IsInstanceOf(obj, gRect_class)); 215 216 *L = env->GetIntField(obj, gRect_leftFieldID); 217 *T = env->GetIntField(obj, gRect_topFieldID); 218 *R = env->GetIntField(obj, gRect_rightFieldID); 219 *B = env->GetIntField(obj, gRect_bottomFieldID); 220} 221 222void GraphicsJNI::set_jrect(JNIEnv* env, jobject obj, int L, int T, int R, int B) 223{ 224 SkASSERT(env->IsInstanceOf(obj, gRect_class)); 225 226 env->SetIntField(obj, gRect_leftFieldID, L); 227 env->SetIntField(obj, gRect_topFieldID, T); 228 env->SetIntField(obj, gRect_rightFieldID, R); 229 env->SetIntField(obj, gRect_bottomFieldID, B); 230} 231 232SkIRect* GraphicsJNI::jrect_to_irect(JNIEnv* env, jobject obj, SkIRect* ir) 233{ 234 SkASSERT(env->IsInstanceOf(obj, gRect_class)); 235 236 ir->set(env->GetIntField(obj, gRect_leftFieldID), 237 env->GetIntField(obj, gRect_topFieldID), 238 env->GetIntField(obj, gRect_rightFieldID), 239 env->GetIntField(obj, gRect_bottomFieldID)); 240 return ir; 241} 242 243void GraphicsJNI::irect_to_jrect(const SkIRect& ir, JNIEnv* env, jobject obj) 244{ 245 SkASSERT(env->IsInstanceOf(obj, gRect_class)); 246 247 env->SetIntField(obj, gRect_leftFieldID, ir.fLeft); 248 env->SetIntField(obj, gRect_topFieldID, ir.fTop); 249 env->SetIntField(obj, gRect_rightFieldID, ir.fRight); 250 env->SetIntField(obj, gRect_bottomFieldID, ir.fBottom); 251} 252 253SkRect* GraphicsJNI::jrectf_to_rect(JNIEnv* env, jobject obj, SkRect* r) 254{ 255 SkASSERT(env->IsInstanceOf(obj, gRectF_class)); 256 257 r->set(env->GetFloatField(obj, gRectF_leftFieldID), 258 env->GetFloatField(obj, gRectF_topFieldID), 259 env->GetFloatField(obj, gRectF_rightFieldID), 260 env->GetFloatField(obj, gRectF_bottomFieldID)); 261 return r; 262} 263 264SkRect* GraphicsJNI::jrect_to_rect(JNIEnv* env, jobject obj, SkRect* r) 265{ 266 SkASSERT(env->IsInstanceOf(obj, gRect_class)); 267 268 r->set(SkIntToScalar(env->GetIntField(obj, gRect_leftFieldID)), 269 SkIntToScalar(env->GetIntField(obj, gRect_topFieldID)), 270 SkIntToScalar(env->GetIntField(obj, gRect_rightFieldID)), 271 SkIntToScalar(env->GetIntField(obj, gRect_bottomFieldID))); 272 return r; 273} 274 275void GraphicsJNI::rect_to_jrectf(const SkRect& r, JNIEnv* env, jobject obj) 276{ 277 SkASSERT(env->IsInstanceOf(obj, gRectF_class)); 278 279 env->SetFloatField(obj, gRectF_leftFieldID, SkScalarToFloat(r.fLeft)); 280 env->SetFloatField(obj, gRectF_topFieldID, SkScalarToFloat(r.fTop)); 281 env->SetFloatField(obj, gRectF_rightFieldID, SkScalarToFloat(r.fRight)); 282 env->SetFloatField(obj, gRectF_bottomFieldID, SkScalarToFloat(r.fBottom)); 283} 284 285SkIPoint* GraphicsJNI::jpoint_to_ipoint(JNIEnv* env, jobject obj, SkIPoint* point) 286{ 287 SkASSERT(env->IsInstanceOf(obj, gPoint_class)); 288 289 point->set(env->GetIntField(obj, gPoint_xFieldID), 290 env->GetIntField(obj, gPoint_yFieldID)); 291 return point; 292} 293 294void GraphicsJNI::ipoint_to_jpoint(const SkIPoint& ir, JNIEnv* env, jobject obj) 295{ 296 SkASSERT(env->IsInstanceOf(obj, gPoint_class)); 297 298 env->SetIntField(obj, gPoint_xFieldID, ir.fX); 299 env->SetIntField(obj, gPoint_yFieldID, ir.fY); 300} 301 302SkPoint* GraphicsJNI::jpointf_to_point(JNIEnv* env, jobject obj, SkPoint* point) 303{ 304 SkASSERT(env->IsInstanceOf(obj, gPointF_class)); 305 306 point->set(env->GetIntField(obj, gPointF_xFieldID), 307 env->GetIntField(obj, gPointF_yFieldID)); 308 return point; 309} 310 311void GraphicsJNI::point_to_jpointf(const SkPoint& r, JNIEnv* env, jobject obj) 312{ 313 SkASSERT(env->IsInstanceOf(obj, gPointF_class)); 314 315 env->SetFloatField(obj, gPointF_xFieldID, SkScalarToFloat(r.fX)); 316 env->SetFloatField(obj, gPointF_yFieldID, SkScalarToFloat(r.fY)); 317} 318 319// See enum values in GraphicsJNI.h 320jint GraphicsJNI::colorTypeToLegacyBitmapConfig(SkColorType colorType) { 321 switch (colorType) { 322 case kRGBA_F16_SkColorType: 323 return kRGBA_16F_LegacyBitmapConfig; 324 case kN32_SkColorType: 325 return kARGB_8888_LegacyBitmapConfig; 326 case kARGB_4444_SkColorType: 327 return kARGB_4444_LegacyBitmapConfig; 328 case kRGB_565_SkColorType: 329 return kRGB_565_LegacyBitmapConfig; 330 case kIndex_8_SkColorType: 331 return kIndex8_LegacyBitmapConfig; 332 case kAlpha_8_SkColorType: 333 return kA8_LegacyBitmapConfig; 334 case kUnknown_SkColorType: 335 default: 336 break; 337 } 338 return kNo_LegacyBitmapConfig; 339} 340 341SkColorType GraphicsJNI::legacyBitmapConfigToColorType(jint legacyConfig) { 342 const uint8_t gConfig2ColorType[] = { 343 kUnknown_SkColorType, 344 kAlpha_8_SkColorType, 345 kIndex_8_SkColorType, 346 kRGB_565_SkColorType, 347 kARGB_4444_SkColorType, 348 kN32_SkColorType, 349 kRGBA_F16_SkColorType, 350 kN32_SkColorType 351 }; 352 353 if (legacyConfig < 0 || legacyConfig > kLastEnum_LegacyBitmapConfig) { 354 legacyConfig = kNo_LegacyBitmapConfig; 355 } 356 return static_cast<SkColorType>(gConfig2ColorType[legacyConfig]); 357} 358 359void GraphicsJNI::getSkBitmap(JNIEnv* env, jobject bitmap, SkBitmap* outBitmap) { 360 bitmap::toBitmap(env, bitmap).getSkBitmap(outBitmap); 361} 362 363SkPixelRef* GraphicsJNI::refSkPixelRef(JNIEnv* env, jobject jbitmap) { 364 android::Bitmap& bitmap = android::bitmap::toBitmap(env, jbitmap); 365 bitmap.ref(); 366 return &bitmap; 367} 368SkColorType GraphicsJNI::getNativeBitmapColorType(JNIEnv* env, jobject jconfig) { 369 SkASSERT(env); 370 if (NULL == jconfig) { 371 return kUnknown_SkColorType; 372 } 373 SkASSERT(env->IsInstanceOf(jconfig, gBitmapConfig_class)); 374 int c = env->GetIntField(jconfig, gBitmapConfig_nativeInstanceID); 375 return legacyBitmapConfigToColorType(c); 376} 377 378bool GraphicsJNI::isHardwareConfig(JNIEnv* env, jobject jconfig) { 379 SkASSERT(env); 380 if (NULL == jconfig) { 381 return false; 382 } 383 int c = env->GetIntField(jconfig, gBitmapConfig_nativeInstanceID); 384 return c == kHardware_LegacyBitmapConfig; 385} 386 387jint GraphicsJNI::hardwareLegacyBitmapConfig() { 388 return kHardware_LegacyBitmapConfig; 389} 390 391android::Canvas* GraphicsJNI::getNativeCanvas(JNIEnv* env, jobject canvas) { 392 SkASSERT(env); 393 SkASSERT(canvas); 394 SkASSERT(env->IsInstanceOf(canvas, gCanvas_class)); 395 jlong canvasHandle = env->GetLongField(canvas, gCanvas_nativeInstanceID); 396 if (!canvasHandle) { 397 return NULL; 398 } 399 return reinterpret_cast<android::Canvas*>(canvasHandle); 400} 401 402SkRegion* GraphicsJNI::getNativeRegion(JNIEnv* env, jobject region) 403{ 404 SkASSERT(env); 405 SkASSERT(region); 406 SkASSERT(env->IsInstanceOf(region, gRegion_class)); 407 jlong regionHandle = env->GetLongField(region, gRegion_nativeInstanceID); 408 SkRegion* r = reinterpret_cast<SkRegion*>(regionHandle); 409 SkASSERT(r); 410 return r; 411} 412 413/////////////////////////////////////////////////////////////////////////////////////////// 414 415jobject GraphicsJNI::createBitmapRegionDecoder(JNIEnv* env, SkBitmapRegionDecoder* bitmap) 416{ 417 SkASSERT(bitmap != NULL); 418 419 jobject obj = env->NewObject(gBitmapRegionDecoder_class, 420 gBitmapRegionDecoder_constructorMethodID, 421 reinterpret_cast<jlong>(bitmap)); 422 hasException(env); // For the side effect of logging. 423 return obj; 424} 425 426jobject GraphicsJNI::createRegion(JNIEnv* env, SkRegion* region) 427{ 428 SkASSERT(region != NULL); 429 jobject obj = env->NewObject(gRegion_class, gRegion_constructorMethodID, 430 reinterpret_cast<jlong>(region), 0); 431 hasException(env); // For the side effect of logging. 432 return obj; 433} 434 435/////////////////////////////////////////////////////////////////////////////// 436 437android::Bitmap* GraphicsJNI::mapAshmemBitmap(JNIEnv* env, SkBitmap* bitmap, 438 SkColorTable* ctable, int fd, void* addr, size_t size, bool readOnly) { 439 const SkImageInfo& info = bitmap->info(); 440 if (info.colorType() == kUnknown_SkColorType) { 441 doThrowIAE(env, "unknown bitmap configuration"); 442 return nullptr; 443 } 444 445 if (!addr) { 446 // Map existing ashmem region if not already mapped. 447 int flags = readOnly ? (PROT_READ) : (PROT_READ | PROT_WRITE); 448 size = ashmem_get_size_region(fd); 449 addr = mmap(NULL, size, flags, MAP_SHARED, fd, 0); 450 if (addr == MAP_FAILED) { 451 return nullptr; 452 } 453 } 454 455 // we must respect the rowBytes value already set on the bitmap instead of 456 // attempting to compute our own. 457 const size_t rowBytes = bitmap->rowBytes(); 458 459 auto wrapper = new android::Bitmap(addr, fd, size, info, rowBytes, ctable); 460 wrapper->getSkBitmap(bitmap); 461 if (readOnly) { 462 bitmap->pixelRef()->setImmutable(); 463 } 464 // since we're already allocated, we lockPixels right away 465 // HeapAllocator behaves this way too 466 bitmap->lockPixels(); 467 468 return wrapper; 469} 470 471sk_sp<SkColorSpace> GraphicsJNI::defaultColorSpace() { 472#ifdef ANDROID_ENABLE_LINEAR_BLENDING 473 return SkColorSpace::MakeSRGB(); 474#else 475 return nullptr; 476#endif 477} 478 479sk_sp<SkColorSpace> GraphicsJNI::linearColorSpace() { 480 return SkColorSpace::MakeSRGBLinear(); 481} 482 483sk_sp<SkColorSpace> GraphicsJNI::colorSpaceForType(SkColorType type) { 484 switch (type) { 485 case kRGBA_F16_SkColorType: 486 return linearColorSpace(); 487 default: 488 return defaultColorSpace(); 489 } 490} 491 492bool GraphicsJNI::isColorSpaceSRGB(SkColorSpace* colorSpace) { 493 return colorSpace == nullptr || colorSpace->isSRGB(); 494} 495 496SkColorSpaceTransferFn GraphicsJNI::getNativeTransferParameters(JNIEnv* env, jobject transferParams) { 497 SkColorSpaceTransferFn p; 498 p.fA = (float) env->GetDoubleField(transferParams, gTransferParams_aFieldID); 499 p.fB = (float) env->GetDoubleField(transferParams, gTransferParams_bFieldID); 500 p.fC = (float) env->GetDoubleField(transferParams, gTransferParams_cFieldID); 501 p.fD = (float) env->GetDoubleField(transferParams, gTransferParams_dFieldID); 502 p.fE = (float) env->GetDoubleField(transferParams, gTransferParams_eFieldID); 503 p.fF = (float) env->GetDoubleField(transferParams, gTransferParams_fFieldID); 504 p.fG = (float) env->GetDoubleField(transferParams, gTransferParams_gFieldID); 505 return p; 506} 507 508SkMatrix44 GraphicsJNI::getNativeXYZMatrix(JNIEnv* env, jfloatArray xyzD50) { 509 SkMatrix44 xyzMatrix(SkMatrix44::kIdentity_Constructor); 510 jfloat* array = env->GetFloatArrayElements(xyzD50, NULL); 511 xyzMatrix.setFloat(0, 0, array[0]); 512 xyzMatrix.setFloat(1, 0, array[1]); 513 xyzMatrix.setFloat(2, 0, array[2]); 514 xyzMatrix.setFloat(0, 1, array[3]); 515 xyzMatrix.setFloat(1, 1, array[4]); 516 xyzMatrix.setFloat(2, 1, array[5]); 517 xyzMatrix.setFloat(0, 2, array[6]); 518 xyzMatrix.setFloat(1, 2, array[7]); 519 xyzMatrix.setFloat(2, 2, array[8]); 520 env->ReleaseFloatArrayElements(xyzD50, array, 0); 521 return xyzMatrix; 522} 523 524sk_sp<SkColorSpace> GraphicsJNI::getNativeColorSpace(JNIEnv* env, jobject colorSpace) { 525 if (colorSpace == nullptr) return nullptr; 526 if (!env->IsInstanceOf(colorSpace, gColorSpaceRGB_class)) { 527 doThrowIAE(env, "The color space must be an RGB color space"); 528 } 529 530 jobject transferParams = env->CallObjectMethod(colorSpace, 531 gColorSpaceRGB_getTransferParametersMethodID); 532 if (transferParams == nullptr) { 533 doThrowIAE(env, "The color space must use an ICC parametric transfer function"); 534 } 535 536 jfloatArray illuminantD50 = (jfloatArray) env->GetStaticObjectField(gColorSpace_class, 537 gColorSpace_IlluminantD50FieldID); 538 jobject colorSpaceD50 = env->CallStaticObjectMethod(gColorSpace_class, 539 gColorSpace_adaptMethodID, colorSpace, illuminantD50); 540 541 jfloatArray xyzD50 = (jfloatArray) env->CallObjectMethod(colorSpaceD50, 542 gColorSpaceRGB_getTransformMethodID); 543 544 SkMatrix44 xyzMatrix = getNativeXYZMatrix(env, xyzD50); 545 SkColorSpaceTransferFn transferFunction = getNativeTransferParameters(env, transferParams); 546 547 return SkColorSpace::MakeRGB(transferFunction, xyzMatrix); 548} 549 550 551jobject GraphicsJNI::getColorSpace(JNIEnv* env, sk_sp<SkColorSpace>& decodeColorSpace, 552 SkColorType decodeColorType) { 553 jobject colorSpace = nullptr; 554 555 // No need to match, we know what the output color space will be 556 if (decodeColorType == kRGBA_F16_SkColorType) { 557 jobject linearExtendedSRGB = env->GetStaticObjectField( 558 gColorSpace_Named_class, gColorSpace_Named_LinearExtendedSRGBFieldID); 559 colorSpace = env->CallStaticObjectMethod(gColorSpace_class, 560 gColorSpace_getMethodID, linearExtendedSRGB); 561 } else { 562 // Same here, no need to match 563 if (decodeColorSpace->isSRGB()) { 564 jobject sRGB = env->GetStaticObjectField( 565 gColorSpace_Named_class, gColorSpace_Named_sRGBFieldID); 566 colorSpace = env->CallStaticObjectMethod(gColorSpace_class, 567 gColorSpace_getMethodID, sRGB); 568 } else if (decodeColorSpace.get() != nullptr) { 569 // Try to match against known RGB color spaces using the CIE XYZ D50 570 // conversion matrix and numerical transfer function parameters 571 SkMatrix44 xyzMatrix(SkMatrix44::kUninitialized_Constructor); 572 LOG_ALWAYS_FATAL_IF(!decodeColorSpace->toXYZD50(&xyzMatrix)); 573 574 SkColorSpaceTransferFn transferParams; 575 // We can only handle numerical transfer functions at the moment 576 LOG_ALWAYS_FATAL_IF(!decodeColorSpace->isNumericalTransferFn(&transferParams)); 577 578 jobject params = env->NewObject(gTransferParameters_class, 579 gTransferParameters_constructorMethodID, 580 transferParams.fA, transferParams.fB, transferParams.fC, 581 transferParams.fD, transferParams.fE, transferParams.fF, 582 transferParams.fG); 583 584 jfloatArray xyzArray = env->NewFloatArray(9); 585 jfloat xyz[9] = { 586 xyzMatrix.getFloat(0, 0), 587 xyzMatrix.getFloat(1, 0), 588 xyzMatrix.getFloat(2, 0), 589 xyzMatrix.getFloat(0, 1), 590 xyzMatrix.getFloat(1, 1), 591 xyzMatrix.getFloat(2, 1), 592 xyzMatrix.getFloat(0, 2), 593 xyzMatrix.getFloat(1, 2), 594 xyzMatrix.getFloat(2, 2) 595 }; 596 env->SetFloatArrayRegion(xyzArray, 0, 9, xyz); 597 598 colorSpace = env->CallStaticObjectMethod(gColorSpace_class, 599 gColorSpace_matchMethodID, xyzArray, params); 600 601 if (colorSpace == nullptr) { 602 // We couldn't find an exact match, let's create a new color space 603 // instance with the 3x3 conversion matrix and transfer function 604 colorSpace = env->NewObject(gColorSpaceRGB_class, 605 gColorSpaceRGB_constructorMethodID, 606 env->NewStringUTF("Unknown"), xyzArray, params); 607 } 608 609 env->DeleteLocalRef(xyzArray); 610 } 611 } 612 return colorSpace; 613} 614 615/////////////////////////////////////////////////////////////////////////////// 616bool HeapAllocator::allocPixelRef(SkBitmap* bitmap, SkColorTable* ctable) { 617 mStorage = android::Bitmap::allocateHeapBitmap(bitmap, ctable); 618 return !!mStorage; 619} 620 621//////////////////////////////////////////////////////////////////////////////// 622 623RecyclingClippingPixelAllocator::RecyclingClippingPixelAllocator( 624 android::Bitmap* recycledBitmap, size_t recycledBytes) 625 : mRecycledBitmap(recycledBitmap) 626 , mRecycledBytes(recycledBytes) 627 , mSkiaBitmap(nullptr) 628 , mNeedsCopy(false) 629{} 630 631RecyclingClippingPixelAllocator::~RecyclingClippingPixelAllocator() {} 632 633bool RecyclingClippingPixelAllocator::allocPixelRef(SkBitmap* bitmap, SkColorTable* ctable) { 634 // Ensure that the caller did not pass in a NULL bitmap to the constructor or this 635 // function. 636 LOG_ALWAYS_FATAL_IF(!mRecycledBitmap); 637 LOG_ALWAYS_FATAL_IF(!bitmap); 638 mSkiaBitmap = bitmap; 639 640 // This behaves differently than the RecyclingPixelAllocator. For backwards 641 // compatibility, the original color type of the recycled bitmap must be maintained. 642 if (mRecycledBitmap->info().colorType() != bitmap->colorType()) { 643 return false; 644 } 645 646 // The Skia bitmap specifies the width and height needed by the decoder. 647 // mRecycledBitmap specifies the width and height of the bitmap that we 648 // want to reuse. Neither can be changed. We will try to find a way 649 // to reuse the memory. 650 const int maxWidth = SkTMax(bitmap->width(), mRecycledBitmap->info().width()); 651 const int maxHeight = SkTMax(bitmap->height(), mRecycledBitmap->info().height()); 652 const SkImageInfo maxInfo = bitmap->info().makeWH(maxWidth, maxHeight); 653 const size_t rowBytes = maxInfo.minRowBytes(); 654 const size_t bytesNeeded = maxInfo.getSafeSize(rowBytes); 655 if (bytesNeeded <= mRecycledBytes) { 656 // Here we take advantage of reconfigure() to reset the rowBytes and ctable 657 // of mRecycledBitmap. It is very important that we pass in 658 // mRecycledBitmap->info() for the SkImageInfo. According to the 659 // specification for BitmapRegionDecoder, we are not allowed to change 660 // the SkImageInfo. 661 mRecycledBitmap->reconfigure(mRecycledBitmap->info(), rowBytes, ctable); 662 663 // Give the bitmap the same pixelRef as mRecycledBitmap. 664 // skbug.com/4538: We also need to make sure that the rowBytes on the pixel ref 665 // match the rowBytes on the bitmap. 666 bitmap->setInfo(bitmap->info(), rowBytes); 667 mRecycledBitmap->ref(); 668 bitmap->setPixelRef(mRecycledBitmap)->unref(); 669 670 // Make sure that the recycled bitmap has the correct alpha type. 671 mRecycledBitmap->setAlphaType(bitmap->alphaType()); 672 673 bitmap->notifyPixelsChanged(); 674 bitmap->lockPixels(); 675 mNeedsCopy = false; 676 677 // TODO: If the dimensions of the SkBitmap are smaller than those of 678 // mRecycledBitmap, should we zero the memory in mRecycledBitmap? 679 return true; 680 } 681 682 // In the event that mRecycledBitmap is not large enough, allocate new memory 683 // on the heap. 684 SkBitmap::HeapAllocator heapAllocator; 685 686 // We will need to copy from heap memory to mRecycledBitmap's memory after the 687 // decode is complete. 688 mNeedsCopy = true; 689 690 return heapAllocator.allocPixelRef(bitmap, ctable); 691} 692 693void RecyclingClippingPixelAllocator::copyIfNecessary() { 694 if (mNeedsCopy) { 695 mRecycledBitmap->ref(); 696 SkPixelRef* recycledPixels = mRecycledBitmap; 697 void* dst = recycledPixels->pixels(); 698 const size_t dstRowBytes = mRecycledBitmap->rowBytes(); 699 const size_t bytesToCopy = std::min(mRecycledBitmap->info().minRowBytes(), 700 mSkiaBitmap->info().minRowBytes()); 701 const int rowsToCopy = std::min(mRecycledBitmap->info().height(), 702 mSkiaBitmap->info().height()); 703 for (int y = 0; y < rowsToCopy; y++) { 704 memcpy(dst, mSkiaBitmap->getAddr(0, y), bytesToCopy); 705 dst = SkTAddOffset<void>(dst, dstRowBytes); 706 } 707 recycledPixels->notifyPixelsChanged(); 708 recycledPixels->unref(); 709 } 710 mRecycledBitmap = nullptr; 711 mSkiaBitmap = nullptr; 712} 713 714//////////////////////////////////////////////////////////////////////////////// 715 716AshmemPixelAllocator::AshmemPixelAllocator(JNIEnv *env) { 717 LOG_ALWAYS_FATAL_IF(env->GetJavaVM(&mJavaVM) != JNI_OK, 718 "env->GetJavaVM failed"); 719} 720 721bool AshmemPixelAllocator::allocPixelRef(SkBitmap* bitmap, SkColorTable* ctable) { 722 mStorage = android::Bitmap::allocateAshmemBitmap(bitmap, ctable); 723 return !!mStorage; 724} 725 726//////////////////////////////////////////////////////////////////////////////// 727 728int register_android_graphics_Graphics(JNIEnv* env) 729{ 730 jmethodID m; 731 jclass c; 732 733 gRect_class = MakeGlobalRefOrDie(env, FindClassOrDie(env, "android/graphics/Rect")); 734 gRect_leftFieldID = GetFieldIDOrDie(env, gRect_class, "left", "I"); 735 gRect_topFieldID = GetFieldIDOrDie(env, gRect_class, "top", "I"); 736 gRect_rightFieldID = GetFieldIDOrDie(env, gRect_class, "right", "I"); 737 gRect_bottomFieldID = GetFieldIDOrDie(env, gRect_class, "bottom", "I"); 738 739 gRectF_class = MakeGlobalRefOrDie(env, FindClassOrDie(env, "android/graphics/RectF")); 740 gRectF_leftFieldID = GetFieldIDOrDie(env, gRectF_class, "left", "F"); 741 gRectF_topFieldID = GetFieldIDOrDie(env, gRectF_class, "top", "F"); 742 gRectF_rightFieldID = GetFieldIDOrDie(env, gRectF_class, "right", "F"); 743 gRectF_bottomFieldID = GetFieldIDOrDie(env, gRectF_class, "bottom", "F"); 744 745 gPoint_class = MakeGlobalRefOrDie(env, FindClassOrDie(env, "android/graphics/Point")); 746 gPoint_xFieldID = GetFieldIDOrDie(env, gPoint_class, "x", "I"); 747 gPoint_yFieldID = GetFieldIDOrDie(env, gPoint_class, "y", "I"); 748 749 gPointF_class = MakeGlobalRefOrDie(env, FindClassOrDie(env, "android/graphics/PointF")); 750 gPointF_xFieldID = GetFieldIDOrDie(env, gPointF_class, "x", "F"); 751 gPointF_yFieldID = GetFieldIDOrDie(env, gPointF_class, "y", "F"); 752 753 gBitmapRegionDecoder_class = MakeGlobalRefOrDie(env, FindClassOrDie(env, "android/graphics/BitmapRegionDecoder")); 754 gBitmapRegionDecoder_constructorMethodID = GetMethodIDOrDie(env, gBitmapRegionDecoder_class, "<init>", "(J)V"); 755 756 gBitmapConfig_class = MakeGlobalRefOrDie(env, FindClassOrDie(env, "android/graphics/Bitmap$Config")); 757 gBitmapConfig_nativeInstanceID = GetFieldIDOrDie(env, gBitmapConfig_class, "nativeInt", "I"); 758 759 gCanvas_class = MakeGlobalRefOrDie(env, FindClassOrDie(env, "android/graphics/Canvas")); 760 gCanvas_nativeInstanceID = GetFieldIDOrDie(env, gCanvas_class, "mNativeCanvasWrapper", "J"); 761 762 gPicture_class = MakeGlobalRefOrDie(env, FindClassOrDie(env, "android/graphics/Picture")); 763 gPicture_nativeInstanceID = GetFieldIDOrDie(env, gPicture_class, "mNativePicture", "J"); 764 765 gRegion_class = MakeGlobalRefOrDie(env, FindClassOrDie(env, "android/graphics/Region")); 766 gRegion_nativeInstanceID = GetFieldIDOrDie(env, gRegion_class, "mNativeRegion", "J"); 767 gRegion_constructorMethodID = GetMethodIDOrDie(env, gRegion_class, "<init>", "(JI)V"); 768 769 c = env->FindClass("java/lang/Byte"); 770 gByte_class = (jclass) env->NewGlobalRef( 771 env->GetStaticObjectField(c, env->GetStaticFieldID(c, "TYPE", "Ljava/lang/Class;"))); 772 773 gVMRuntime_class = MakeGlobalRefOrDie(env, FindClassOrDie(env, "dalvik/system/VMRuntime")); 774 m = env->GetStaticMethodID(gVMRuntime_class, "getRuntime", "()Ldalvik/system/VMRuntime;"); 775 gVMRuntime = env->NewGlobalRef(env->CallStaticObjectMethod(gVMRuntime_class, m)); 776 gVMRuntime_newNonMovableArray = GetMethodIDOrDie(env, gVMRuntime_class, "newNonMovableArray", 777 "(Ljava/lang/Class;I)Ljava/lang/Object;"); 778 gVMRuntime_addressOf = GetMethodIDOrDie(env, gVMRuntime_class, "addressOf", "(Ljava/lang/Object;)J"); 779 780 jclass transfer_params_class = FindClassOrDie(env, "android/graphics/ColorSpace$Rgb$TransferParameters"); 781 gTransferParams_aFieldID = GetFieldIDOrDie(env, transfer_params_class, "a", "D"); 782 gTransferParams_bFieldID = GetFieldIDOrDie(env, transfer_params_class, "b", "D"); 783 gTransferParams_cFieldID = GetFieldIDOrDie(env, transfer_params_class, "c", "D"); 784 gTransferParams_dFieldID = GetFieldIDOrDie(env, transfer_params_class, "d", "D"); 785 gTransferParams_eFieldID = GetFieldIDOrDie(env, transfer_params_class, "e", "D"); 786 gTransferParams_fFieldID = GetFieldIDOrDie(env, transfer_params_class, "f", "D"); 787 gTransferParams_gFieldID = GetFieldIDOrDie(env, transfer_params_class, "g", "D"); 788 789 gColorSpace_class = MakeGlobalRefOrDie(env, FindClassOrDie(env, "android/graphics/ColorSpace")); 790 gColorSpace_IlluminantD50FieldID = GetStaticFieldIDOrDie(env, 791 gColorSpace_class, "ILLUMINANT_D50", "[F"); 792 gColorSpace_adaptMethodID = GetStaticMethodIDOrDie(env, gColorSpace_class, "adapt", 793 "(Landroid/graphics/ColorSpace;[F)Landroid/graphics/ColorSpace;"); 794 gColorSpace_getMethodID = GetStaticMethodIDOrDie(env, gColorSpace_class, 795 "get", "(Landroid/graphics/ColorSpace$Named;)Landroid/graphics/ColorSpace;"); 796 gColorSpace_matchMethodID = GetStaticMethodIDOrDie(env, gColorSpace_class, "match", 797 "([FLandroid/graphics/ColorSpace$Rgb$TransferParameters;)Landroid/graphics/ColorSpace;"); 798 799 gColorSpaceRGB_class = MakeGlobalRefOrDie(env, 800 FindClassOrDie(env, "android/graphics/ColorSpace$Rgb")); 801 gColorSpaceRGB_constructorMethodID = GetMethodIDOrDie(env, gColorSpaceRGB_class, 802 "<init>", "(Ljava/lang/String;[FLandroid/graphics/ColorSpace$Rgb$TransferParameters;)V"); 803 gColorSpaceRGB_getTransferParametersMethodID = GetMethodIDOrDie(env, gColorSpaceRGB_class, 804 "getTransferParameters", "()Landroid/graphics/ColorSpace$Rgb$TransferParameters;"); 805 gColorSpaceRGB_getTransformMethodID = GetMethodIDOrDie(env, gColorSpaceRGB_class, 806 "getTransform", "()[F"); 807 808 gColorSpace_Named_class = MakeGlobalRefOrDie(env, 809 FindClassOrDie(env, "android/graphics/ColorSpace$Named")); 810 gColorSpace_Named_sRGBFieldID = GetStaticFieldIDOrDie(env, 811 gColorSpace_Named_class, "SRGB", "Landroid/graphics/ColorSpace$Named;"); 812 gColorSpace_Named_LinearExtendedSRGBFieldID = GetStaticFieldIDOrDie(env, 813 gColorSpace_Named_class, "LINEAR_EXTENDED_SRGB", "Landroid/graphics/ColorSpace$Named;"); 814 815 gTransferParameters_class = MakeGlobalRefOrDie(env, FindClassOrDie(env, 816 "android/graphics/ColorSpace$Rgb$TransferParameters")); 817 gTransferParameters_constructorMethodID = GetMethodIDOrDie(env, gTransferParameters_class, 818 "<init>", "(DDDDDDD)V"); 819 820 return 0; 821} 822