1 #define LOG_TAG "GraphicsJNI" 2 3 #include <unistd.h> 4 #include <sys/mman.h> 5 6 #include "jni.h" 7 #include <nativehelper/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 21 using namespace android; 22 23 void doThrowNPE(JNIEnv* env) { 24 jniThrowNullPointerException(env, NULL); 25 } 26 27 void doThrowAIOOBE(JNIEnv* env) { 28 jniThrowException(env, "java/lang/ArrayIndexOutOfBoundsException", NULL); 29 } 30 31 void doThrowRE(JNIEnv* env, const char* msg) { 32 jniThrowRuntimeException(env, msg); 33 } 34 35 void doThrowIAE(JNIEnv* env, const char* msg) { 36 jniThrowException(env, "java/lang/IllegalArgumentException", msg); 37 } 38 39 void doThrowISE(JNIEnv* env, const char* msg) { 40 jniThrowException(env, "java/lang/IllegalStateException", msg); 41 } 42 43 void doThrowOOME(JNIEnv* env, const char* msg) { 44 jniThrowException(env, "java/lang/OutOfMemoryError", msg); 45 } 46 47 void doThrowIOE(JNIEnv* env, const char* msg) { 48 jniThrowException(env, "java/io/IOException", msg); 49 } 50 51 bool 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 62 AutoJavaFloatArray::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 76 AutoJavaFloatArray::~AutoJavaFloatArray() { 77 if (fPtr) { 78 fEnv->ReleaseFloatArrayElements(fArray, fPtr, fReleaseMode); 79 } 80 } 81 82 AutoJavaIntArray::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 95 AutoJavaIntArray::~AutoJavaIntArray() { 96 if (fPtr) { 97 fEnv->ReleaseIntArrayElements(fArray, fPtr, 0); 98 } 99 } 100 101 AutoJavaShortArray::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 } 114 115 AutoJavaShortArray::~AutoJavaShortArray() { 116 if (fPtr) { 117 fEnv->ReleaseShortArrayElements(fArray, fPtr, fReleaseMode); 118 } 119 } 120 121 AutoJavaByteArray::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 } 133 134 AutoJavaByteArray::~AutoJavaByteArray() { 135 if (fPtr) { 136 fEnv->ReleaseByteArrayElements(fArray, fPtr, 0); 137 } 138 } 139 140 /////////////////////////////////////////////////////////////////////////////// 141 142 static jclass gRect_class; 143 static jfieldID gRect_leftFieldID; 144 static jfieldID gRect_topFieldID; 145 static jfieldID gRect_rightFieldID; 146 static jfieldID gRect_bottomFieldID; 147 148 static jclass gRectF_class; 149 static jfieldID gRectF_leftFieldID; 150 static jfieldID gRectF_topFieldID; 151 static jfieldID gRectF_rightFieldID; 152 static jfieldID gRectF_bottomFieldID; 153 154 static jclass gPoint_class; 155 static jfieldID gPoint_xFieldID; 156 static jfieldID gPoint_yFieldID; 157 158 static jclass gPointF_class; 159 static jfieldID gPointF_xFieldID; 160 static jfieldID gPointF_yFieldID; 161 162 static jclass gBitmapConfig_class; 163 static jfieldID gBitmapConfig_nativeInstanceID; 164 165 static jclass gBitmapRegionDecoder_class; 166 static jmethodID gBitmapRegionDecoder_constructorMethodID; 167 168 static jclass gCanvas_class; 169 static jfieldID gCanvas_nativeInstanceID; 170 171 static jclass gPicture_class; 172 static jfieldID gPicture_nativeInstanceID; 173 174 static jclass gRegion_class; 175 static jfieldID gRegion_nativeInstanceID; 176 static jmethodID gRegion_constructorMethodID; 177 178 static jclass gByte_class; 179 static jobject gVMRuntime; 180 static jclass gVMRuntime_class; 181 static jmethodID gVMRuntime_newNonMovableArray; 182 static jmethodID gVMRuntime_addressOf; 183 184 static jfieldID gTransferParams_aFieldID; 185 static jfieldID gTransferParams_bFieldID; 186 static jfieldID gTransferParams_cFieldID; 187 static jfieldID gTransferParams_dFieldID; 188 static jfieldID gTransferParams_eFieldID; 189 static jfieldID gTransferParams_fFieldID; 190 static jfieldID gTransferParams_gFieldID; 191 192 static jclass gColorSpace_class; 193 static jfieldID gColorSpace_IlluminantD50FieldID; 194 static jmethodID gColorSpace_adaptMethodID; 195 static jmethodID gColorSpace_getMethodID; 196 static jmethodID gColorSpace_matchMethodID; 197 198 static jclass gColorSpaceRGB_class; 199 static jmethodID gColorSpaceRGB_getTransferParametersMethodID; 200 static jmethodID gColorSpaceRGB_getTransformMethodID; 201 static jmethodID gColorSpaceRGB_constructorMethodID; 202 203 static jclass gColorSpace_Named_class; 204 static jfieldID gColorSpace_Named_sRGBFieldID; 205 static jfieldID gColorSpace_Named_LinearExtendedSRGBFieldID; 206 207 static jclass gTransferParameters_class; 208 static jmethodID gTransferParameters_constructorMethodID; 209 210 /////////////////////////////////////////////////////////////////////////////// 211 212 void 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 } 221 222 void 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 } 231 232 SkIRect* 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 } 242 243 void 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 } 252 253 SkRect* 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 } 263 264 SkRect* 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 } 274 275 void 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 } 284 285 SkIPoint* 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 } 293 294 void 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 } 301 302 SkPoint* 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 } 310 311 void 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 320 jint 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 kAlpha_8_SkColorType: 331 return kA8_LegacyBitmapConfig; 332 case kUnknown_SkColorType: 333 default: 334 break; 335 } 336 return kNo_LegacyBitmapConfig; 337 } 338 339 SkColorType GraphicsJNI::legacyBitmapConfigToColorType(jint legacyConfig) { 340 const uint8_t gConfig2ColorType[] = { 341 kUnknown_SkColorType, 342 kAlpha_8_SkColorType, 343 kUnknown_SkColorType, // Previously kIndex_8_SkColorType, 344 kRGB_565_SkColorType, 345 kARGB_4444_SkColorType, 346 kN32_SkColorType, 347 kRGBA_F16_SkColorType, 348 kN32_SkColorType 349 }; 350 351 if (legacyConfig < 0 || legacyConfig > kLastEnum_LegacyBitmapConfig) { 352 legacyConfig = kNo_LegacyBitmapConfig; 353 } 354 return static_cast<SkColorType>(gConfig2ColorType[legacyConfig]); 355 } 356 357 void GraphicsJNI::getSkBitmap(JNIEnv* env, jobject bitmap, SkBitmap* outBitmap) { 358 bitmap::toBitmap(env, bitmap).getSkBitmap(outBitmap); 359 } 360 361 SkPixelRef* GraphicsJNI::refSkPixelRef(JNIEnv* env, jobject jbitmap) { 362 android::Bitmap& bitmap = android::bitmap::toBitmap(env, jbitmap); 363 bitmap.ref(); 364 return &bitmap; 365 } 366 SkColorType 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 } 375 376 bool GraphicsJNI::isHardwareConfig(JNIEnv* env, jobject jconfig) { 377 SkASSERT(env); 378 if (NULL == jconfig) { 379 return false; 380 } 381 int c = env->GetIntField(jconfig, gBitmapConfig_nativeInstanceID); 382 return c == kHardware_LegacyBitmapConfig; 383 } 384 385 jint GraphicsJNI::hardwareLegacyBitmapConfig() { 386 return kHardware_LegacyBitmapConfig; 387 } 388 389 android::Canvas* GraphicsJNI::getNativeCanvas(JNIEnv* env, jobject canvas) { 390 SkASSERT(env); 391 SkASSERT(canvas); 392 SkASSERT(env->IsInstanceOf(canvas, gCanvas_class)); 393 jlong canvasHandle = env->GetLongField(canvas, gCanvas_nativeInstanceID); 394 if (!canvasHandle) { 395 return NULL; 396 } 397 return reinterpret_cast<android::Canvas*>(canvasHandle); 398 } 399 400 SkRegion* GraphicsJNI::getNativeRegion(JNIEnv* env, jobject region) 401 { 402 SkASSERT(env); 403 SkASSERT(region); 404 SkASSERT(env->IsInstanceOf(region, gRegion_class)); 405 jlong regionHandle = env->GetLongField(region, gRegion_nativeInstanceID); 406 SkRegion* r = reinterpret_cast<SkRegion*>(regionHandle); 407 SkASSERT(r); 408 return r; 409 } 410 411 /////////////////////////////////////////////////////////////////////////////////////////// 412 413 jobject GraphicsJNI::createBitmapRegionDecoder(JNIEnv* env, SkBitmapRegionDecoder* bitmap) 414 { 415 SkASSERT(bitmap != NULL); 416 417 jobject obj = env->NewObject(gBitmapRegionDecoder_class, 418 gBitmapRegionDecoder_constructorMethodID, 419 reinterpret_cast<jlong>(bitmap)); 420 hasException(env); // For the side effect of logging. 421 return obj; 422 } 423 424 jobject GraphicsJNI::createRegion(JNIEnv* env, SkRegion* region) 425 { 426 SkASSERT(region != NULL); 427 jobject obj = env->NewObject(gRegion_class, gRegion_constructorMethodID, 428 reinterpret_cast<jlong>(region), 0); 429 hasException(env); // For the side effect of logging. 430 return obj; 431 } 432 433 /////////////////////////////////////////////////////////////////////////////// 434 435 android::Bitmap* GraphicsJNI::mapAshmemBitmap(JNIEnv* env, SkBitmap* bitmap, 436 int fd, void* addr, size_t size, bool readOnly) { 437 const SkImageInfo& info = bitmap->info(); 438 if (info.colorType() == kUnknown_SkColorType) { 439 doThrowIAE(env, "unknown bitmap configuration"); 440 return nullptr; 441 } 442 443 if (!addr) { 444 // Map existing ashmem region if not already mapped. 445 int flags = readOnly ? (PROT_READ) : (PROT_READ | PROT_WRITE); 446 size = ashmem_get_size_region(fd); 447 addr = mmap(NULL, size, flags, MAP_SHARED, fd, 0); 448 if (addr == MAP_FAILED) { 449 return nullptr; 450 } 451 } 452 453 // we must respect the rowBytes value already set on the bitmap instead of 454 // attempting to compute our own. 455 const size_t rowBytes = bitmap->rowBytes(); 456 457 auto wrapper = new android::Bitmap(addr, fd, size, info, rowBytes); 458 wrapper->getSkBitmap(bitmap); 459 if (readOnly) { 460 bitmap->pixelRef()->setImmutable(); 461 } 462 return wrapper; 463 } 464 465 sk_sp<SkColorSpace> GraphicsJNI::defaultColorSpace() { 466 #ifdef ANDROID_ENABLE_LINEAR_BLENDING 467 return SkColorSpace::MakeSRGB(); 468 #else 469 return nullptr; 470 #endif 471 } 472 473 sk_sp<SkColorSpace> GraphicsJNI::linearColorSpace() { 474 return SkColorSpace::MakeSRGBLinear(); 475 } 476 477 sk_sp<SkColorSpace> GraphicsJNI::colorSpaceForType(SkColorType type) { 478 switch (type) { 479 case kRGBA_F16_SkColorType: 480 return linearColorSpace(); 481 default: 482 return defaultColorSpace(); 483 } 484 } 485 486 bool GraphicsJNI::isColorSpaceSRGB(SkColorSpace* colorSpace) { 487 return colorSpace == nullptr || colorSpace->isSRGB(); 488 } 489 490 SkColorSpaceTransferFn GraphicsJNI::getNativeTransferParameters(JNIEnv* env, jobject transferParams) { 491 SkColorSpaceTransferFn p; 492 p.fA = (float) env->GetDoubleField(transferParams, gTransferParams_aFieldID); 493 p.fB = (float) env->GetDoubleField(transferParams, gTransferParams_bFieldID); 494 p.fC = (float) env->GetDoubleField(transferParams, gTransferParams_cFieldID); 495 p.fD = (float) env->GetDoubleField(transferParams, gTransferParams_dFieldID); 496 p.fE = (float) env->GetDoubleField(transferParams, gTransferParams_eFieldID); 497 p.fF = (float) env->GetDoubleField(transferParams, gTransferParams_fFieldID); 498 p.fG = (float) env->GetDoubleField(transferParams, gTransferParams_gFieldID); 499 return p; 500 } 501 502 SkMatrix44 GraphicsJNI::getNativeXYZMatrix(JNIEnv* env, jfloatArray xyzD50) { 503 SkMatrix44 xyzMatrix(SkMatrix44::kIdentity_Constructor); 504 jfloat* array = env->GetFloatArrayElements(xyzD50, NULL); 505 xyzMatrix.setFloat(0, 0, array[0]); 506 xyzMatrix.setFloat(1, 0, array[1]); 507 xyzMatrix.setFloat(2, 0, array[2]); 508 xyzMatrix.setFloat(0, 1, array[3]); 509 xyzMatrix.setFloat(1, 1, array[4]); 510 xyzMatrix.setFloat(2, 1, array[5]); 511 xyzMatrix.setFloat(0, 2, array[6]); 512 xyzMatrix.setFloat(1, 2, array[7]); 513 xyzMatrix.setFloat(2, 2, array[8]); 514 env->ReleaseFloatArrayElements(xyzD50, array, 0); 515 return xyzMatrix; 516 } 517 518 sk_sp<SkColorSpace> GraphicsJNI::getNativeColorSpace(JNIEnv* env, jobject colorSpace) { 519 if (colorSpace == nullptr) return nullptr; 520 if (!env->IsInstanceOf(colorSpace, gColorSpaceRGB_class)) { 521 doThrowIAE(env, "The color space must be an RGB color space"); 522 } 523 524 jobject transferParams = env->CallObjectMethod(colorSpace, 525 gColorSpaceRGB_getTransferParametersMethodID); 526 if (transferParams == nullptr) { 527 doThrowIAE(env, "The color space must use an ICC parametric transfer function"); 528 } 529 530 jfloatArray illuminantD50 = (jfloatArray) env->GetStaticObjectField(gColorSpace_class, 531 gColorSpace_IlluminantD50FieldID); 532 jobject colorSpaceD50 = env->CallStaticObjectMethod(gColorSpace_class, 533 gColorSpace_adaptMethodID, colorSpace, illuminantD50); 534 535 jfloatArray xyzD50 = (jfloatArray) env->CallObjectMethod(colorSpaceD50, 536 gColorSpaceRGB_getTransformMethodID); 537 538 SkMatrix44 xyzMatrix = getNativeXYZMatrix(env, xyzD50); 539 SkColorSpaceTransferFn transferFunction = getNativeTransferParameters(env, transferParams); 540 541 return SkColorSpace::MakeRGB(transferFunction, xyzMatrix); 542 } 543 544 545 jobject GraphicsJNI::getColorSpace(JNIEnv* env, sk_sp<SkColorSpace>& decodeColorSpace, 546 SkColorType decodeColorType) { 547 jobject colorSpace = nullptr; 548 549 // No need to match, we know what the output color space will be 550 if (decodeColorType == kRGBA_F16_SkColorType) { 551 jobject linearExtendedSRGB = env->GetStaticObjectField( 552 gColorSpace_Named_class, gColorSpace_Named_LinearExtendedSRGBFieldID); 553 colorSpace = env->CallStaticObjectMethod(gColorSpace_class, 554 gColorSpace_getMethodID, linearExtendedSRGB); 555 } else { 556 // Same here, no need to match 557 if (decodeColorSpace->isSRGB()) { 558 jobject sRGB = env->GetStaticObjectField( 559 gColorSpace_Named_class, gColorSpace_Named_sRGBFieldID); 560 colorSpace = env->CallStaticObjectMethod(gColorSpace_class, 561 gColorSpace_getMethodID, sRGB); 562 } else if (decodeColorSpace.get() != nullptr) { 563 // Try to match against known RGB color spaces using the CIE XYZ D50 564 // conversion matrix and numerical transfer function parameters 565 SkMatrix44 xyzMatrix(SkMatrix44::kUninitialized_Constructor); 566 LOG_ALWAYS_FATAL_IF(!decodeColorSpace->toXYZD50(&xyzMatrix)); 567 568 SkColorSpaceTransferFn transferParams; 569 // We can only handle numerical transfer functions at the moment 570 LOG_ALWAYS_FATAL_IF(!decodeColorSpace->isNumericalTransferFn(&transferParams)); 571 572 jobject params = env->NewObject(gTransferParameters_class, 573 gTransferParameters_constructorMethodID, 574 transferParams.fA, transferParams.fB, transferParams.fC, 575 transferParams.fD, transferParams.fE, transferParams.fF, 576 transferParams.fG); 577 578 jfloatArray xyzArray = env->NewFloatArray(9); 579 jfloat xyz[9] = { 580 xyzMatrix.getFloat(0, 0), 581 xyzMatrix.getFloat(1, 0), 582 xyzMatrix.getFloat(2, 0), 583 xyzMatrix.getFloat(0, 1), 584 xyzMatrix.getFloat(1, 1), 585 xyzMatrix.getFloat(2, 1), 586 xyzMatrix.getFloat(0, 2), 587 xyzMatrix.getFloat(1, 2), 588 xyzMatrix.getFloat(2, 2) 589 }; 590 env->SetFloatArrayRegion(xyzArray, 0, 9, xyz); 591 592 colorSpace = env->CallStaticObjectMethod(gColorSpace_class, 593 gColorSpace_matchMethodID, xyzArray, params); 594 595 if (colorSpace == nullptr) { 596 // We couldn't find an exact match, let's create a new color space 597 // instance with the 3x3 conversion matrix and transfer function 598 colorSpace = env->NewObject(gColorSpaceRGB_class, 599 gColorSpaceRGB_constructorMethodID, 600 env->NewStringUTF("Unknown"), xyzArray, params); 601 } 602 603 env->DeleteLocalRef(xyzArray); 604 } 605 } 606 return colorSpace; 607 } 608 609 /////////////////////////////////////////////////////////////////////////////// 610 bool HeapAllocator::allocPixelRef(SkBitmap* bitmap) { 611 mStorage = android::Bitmap::allocateHeapBitmap(bitmap); 612 return !!mStorage; 613 } 614 615 //////////////////////////////////////////////////////////////////////////////// 616 617 RecyclingClippingPixelAllocator::RecyclingClippingPixelAllocator( 618 android::Bitmap* recycledBitmap, size_t recycledBytes) 619 : mRecycledBitmap(recycledBitmap) 620 , mRecycledBytes(recycledBytes) 621 , mSkiaBitmap(nullptr) 622 , mNeedsCopy(false) 623 {} 624 625 RecyclingClippingPixelAllocator::~RecyclingClippingPixelAllocator() {} 626 627 bool RecyclingClippingPixelAllocator::allocPixelRef(SkBitmap* bitmap) { 628 // Ensure that the caller did not pass in a NULL bitmap to the constructor or this 629 // function. 630 LOG_ALWAYS_FATAL_IF(!mRecycledBitmap); 631 LOG_ALWAYS_FATAL_IF(!bitmap); 632 mSkiaBitmap = bitmap; 633 634 // This behaves differently than the RecyclingPixelAllocator. For backwards 635 // compatibility, the original color type of the recycled bitmap must be maintained. 636 if (mRecycledBitmap->info().colorType() != bitmap->colorType()) { 637 return false; 638 } 639 640 // The Skia bitmap specifies the width and height needed by the decoder. 641 // mRecycledBitmap specifies the width and height of the bitmap that we 642 // want to reuse. Neither can be changed. We will try to find a way 643 // to reuse the memory. 644 const int maxWidth = SkTMax(bitmap->width(), mRecycledBitmap->info().width()); 645 const int maxHeight = SkTMax(bitmap->height(), mRecycledBitmap->info().height()); 646 const SkImageInfo maxInfo = bitmap->info().makeWH(maxWidth, maxHeight); 647 const size_t rowBytes = maxInfo.minRowBytes(); 648 const size_t bytesNeeded = maxInfo.getSafeSize(rowBytes); 649 if (bytesNeeded <= mRecycledBytes) { 650 // Here we take advantage of reconfigure() to reset the rowBytes 651 // of mRecycledBitmap. It is very important that we pass in 652 // mRecycledBitmap->info() for the SkImageInfo. According to the 653 // specification for BitmapRegionDecoder, we are not allowed to change 654 // the SkImageInfo. 655 // We can (must) preserve the color space since it doesn't affect the 656 // storage needs 657 mRecycledBitmap->reconfigure( 658 mRecycledBitmap->info().makeColorSpace(bitmap->refColorSpace()), 659 rowBytes); 660 661 // Give the bitmap the same pixelRef as mRecycledBitmap. 662 // skbug.com/4538: We also need to make sure that the rowBytes on the pixel ref 663 // match the rowBytes on the bitmap. 664 bitmap->setInfo(bitmap->info(), rowBytes); 665 bitmap->setPixelRef(sk_ref_sp(mRecycledBitmap), 0, 0); 666 667 // Make sure that the recycled bitmap has the correct alpha type. 668 mRecycledBitmap->setAlphaType(bitmap->alphaType()); 669 670 bitmap->notifyPixelsChanged(); 671 mNeedsCopy = false; 672 673 // TODO: If the dimensions of the SkBitmap are smaller than those of 674 // mRecycledBitmap, should we zero the memory in mRecycledBitmap? 675 return true; 676 } 677 678 // In the event that mRecycledBitmap is not large enough, allocate new memory 679 // on the heap. 680 SkBitmap::HeapAllocator heapAllocator; 681 682 // We will need to copy from heap memory to mRecycledBitmap's memory after the 683 // decode is complete. 684 mNeedsCopy = true; 685 686 return heapAllocator.allocPixelRef(bitmap); 687 } 688 689 void RecyclingClippingPixelAllocator::copyIfNecessary() { 690 if (mNeedsCopy) { 691 mRecycledBitmap->ref(); 692 SkPixelRef* recycledPixels = mRecycledBitmap; 693 void* dst = recycledPixels->pixels(); 694 const size_t dstRowBytes = mRecycledBitmap->rowBytes(); 695 const size_t bytesToCopy = std::min(mRecycledBitmap->info().minRowBytes(), 696 mSkiaBitmap->info().minRowBytes()); 697 const int rowsToCopy = std::min(mRecycledBitmap->info().height(), 698 mSkiaBitmap->info().height()); 699 for (int y = 0; y < rowsToCopy; y++) { 700 memcpy(dst, mSkiaBitmap->getAddr(0, y), bytesToCopy); 701 dst = SkTAddOffset<void>(dst, dstRowBytes); 702 } 703 recycledPixels->notifyPixelsChanged(); 704 recycledPixels->unref(); 705 } 706 mRecycledBitmap = nullptr; 707 mSkiaBitmap = nullptr; 708 } 709 710 //////////////////////////////////////////////////////////////////////////////// 711 712 AshmemPixelAllocator::AshmemPixelAllocator(JNIEnv *env) { 713 LOG_ALWAYS_FATAL_IF(env->GetJavaVM(&mJavaVM) != JNI_OK, 714 "env->GetJavaVM failed"); 715 } 716 717 bool AshmemPixelAllocator::allocPixelRef(SkBitmap* bitmap) { 718 mStorage = android::Bitmap::allocateAshmemBitmap(bitmap); 719 return !!mStorage; 720 } 721 722 //////////////////////////////////////////////////////////////////////////////// 723 724 int register_android_graphics_Graphics(JNIEnv* env) 725 { 726 jmethodID m; 727 jclass c; 728 729 gRect_class = MakeGlobalRefOrDie(env, FindClassOrDie(env, "android/graphics/Rect")); 730 gRect_leftFieldID = GetFieldIDOrDie(env, gRect_class, "left", "I"); 731 gRect_topFieldID = GetFieldIDOrDie(env, gRect_class, "top", "I"); 732 gRect_rightFieldID = GetFieldIDOrDie(env, gRect_class, "right", "I"); 733 gRect_bottomFieldID = GetFieldIDOrDie(env, gRect_class, "bottom", "I"); 734 735 gRectF_class = MakeGlobalRefOrDie(env, FindClassOrDie(env, "android/graphics/RectF")); 736 gRectF_leftFieldID = GetFieldIDOrDie(env, gRectF_class, "left", "F"); 737 gRectF_topFieldID = GetFieldIDOrDie(env, gRectF_class, "top", "F"); 738 gRectF_rightFieldID = GetFieldIDOrDie(env, gRectF_class, "right", "F"); 739 gRectF_bottomFieldID = GetFieldIDOrDie(env, gRectF_class, "bottom", "F"); 740 741 gPoint_class = MakeGlobalRefOrDie(env, FindClassOrDie(env, "android/graphics/Point")); 742 gPoint_xFieldID = GetFieldIDOrDie(env, gPoint_class, "x", "I"); 743 gPoint_yFieldID = GetFieldIDOrDie(env, gPoint_class, "y", "I"); 744 745 gPointF_class = MakeGlobalRefOrDie(env, FindClassOrDie(env, "android/graphics/PointF")); 746 gPointF_xFieldID = GetFieldIDOrDie(env, gPointF_class, "x", "F"); 747 gPointF_yFieldID = GetFieldIDOrDie(env, gPointF_class, "y", "F"); 748 749 gBitmapRegionDecoder_class = MakeGlobalRefOrDie(env, FindClassOrDie(env, "android/graphics/BitmapRegionDecoder")); 750 gBitmapRegionDecoder_constructorMethodID = GetMethodIDOrDie(env, gBitmapRegionDecoder_class, "<init>", "(J)V"); 751 752 gBitmapConfig_class = MakeGlobalRefOrDie(env, FindClassOrDie(env, "android/graphics/Bitmap$Config")); 753 gBitmapConfig_nativeInstanceID = GetFieldIDOrDie(env, gBitmapConfig_class, "nativeInt", "I"); 754 755 gCanvas_class = MakeGlobalRefOrDie(env, FindClassOrDie(env, "android/graphics/Canvas")); 756 gCanvas_nativeInstanceID = GetFieldIDOrDie(env, gCanvas_class, "mNativeCanvasWrapper", "J"); 757 758 gPicture_class = MakeGlobalRefOrDie(env, FindClassOrDie(env, "android/graphics/Picture")); 759 gPicture_nativeInstanceID = GetFieldIDOrDie(env, gPicture_class, "mNativePicture", "J"); 760 761 gRegion_class = MakeGlobalRefOrDie(env, FindClassOrDie(env, "android/graphics/Region")); 762 gRegion_nativeInstanceID = GetFieldIDOrDie(env, gRegion_class, "mNativeRegion", "J"); 763 gRegion_constructorMethodID = GetMethodIDOrDie(env, gRegion_class, "<init>", "(JI)V"); 764 765 c = env->FindClass("java/lang/Byte"); 766 gByte_class = (jclass) env->NewGlobalRef( 767 env->GetStaticObjectField(c, env->GetStaticFieldID(c, "TYPE", "Ljava/lang/Class;"))); 768 769 gVMRuntime_class = MakeGlobalRefOrDie(env, FindClassOrDie(env, "dalvik/system/VMRuntime")); 770 m = env->GetStaticMethodID(gVMRuntime_class, "getRuntime", "()Ldalvik/system/VMRuntime;"); 771 gVMRuntime = env->NewGlobalRef(env->CallStaticObjectMethod(gVMRuntime_class, m)); 772 gVMRuntime_newNonMovableArray = GetMethodIDOrDie(env, gVMRuntime_class, "newNonMovableArray", 773 "(Ljava/lang/Class;I)Ljava/lang/Object;"); 774 gVMRuntime_addressOf = GetMethodIDOrDie(env, gVMRuntime_class, "addressOf", "(Ljava/lang/Object;)J"); 775 776 jclass transfer_params_class = FindClassOrDie(env, "android/graphics/ColorSpace$Rgb$TransferParameters"); 777 gTransferParams_aFieldID = GetFieldIDOrDie(env, transfer_params_class, "a", "D"); 778 gTransferParams_bFieldID = GetFieldIDOrDie(env, transfer_params_class, "b", "D"); 779 gTransferParams_cFieldID = GetFieldIDOrDie(env, transfer_params_class, "c", "D"); 780 gTransferParams_dFieldID = GetFieldIDOrDie(env, transfer_params_class, "d", "D"); 781 gTransferParams_eFieldID = GetFieldIDOrDie(env, transfer_params_class, "e", "D"); 782 gTransferParams_fFieldID = GetFieldIDOrDie(env, transfer_params_class, "f", "D"); 783 gTransferParams_gFieldID = GetFieldIDOrDie(env, transfer_params_class, "g", "D"); 784 785 gColorSpace_class = MakeGlobalRefOrDie(env, FindClassOrDie(env, "android/graphics/ColorSpace")); 786 gColorSpace_IlluminantD50FieldID = GetStaticFieldIDOrDie(env, 787 gColorSpace_class, "ILLUMINANT_D50", "[F"); 788 gColorSpace_adaptMethodID = GetStaticMethodIDOrDie(env, gColorSpace_class, "adapt", 789 "(Landroid/graphics/ColorSpace;[F)Landroid/graphics/ColorSpace;"); 790 gColorSpace_getMethodID = GetStaticMethodIDOrDie(env, gColorSpace_class, 791 "get", "(Landroid/graphics/ColorSpace$Named;)Landroid/graphics/ColorSpace;"); 792 gColorSpace_matchMethodID = GetStaticMethodIDOrDie(env, gColorSpace_class, "match", 793 "([FLandroid/graphics/ColorSpace$Rgb$TransferParameters;)Landroid/graphics/ColorSpace;"); 794 795 gColorSpaceRGB_class = MakeGlobalRefOrDie(env, 796 FindClassOrDie(env, "android/graphics/ColorSpace$Rgb")); 797 gColorSpaceRGB_constructorMethodID = GetMethodIDOrDie(env, gColorSpaceRGB_class, 798 "<init>", "(Ljava/lang/String;[FLandroid/graphics/ColorSpace$Rgb$TransferParameters;)V"); 799 gColorSpaceRGB_getTransferParametersMethodID = GetMethodIDOrDie(env, gColorSpaceRGB_class, 800 "getTransferParameters", "()Landroid/graphics/ColorSpace$Rgb$TransferParameters;"); 801 gColorSpaceRGB_getTransformMethodID = GetMethodIDOrDie(env, gColorSpaceRGB_class, 802 "getTransform", "()[F"); 803 804 gColorSpace_Named_class = MakeGlobalRefOrDie(env, 805 FindClassOrDie(env, "android/graphics/ColorSpace$Named")); 806 gColorSpace_Named_sRGBFieldID = GetStaticFieldIDOrDie(env, 807 gColorSpace_Named_class, "SRGB", "Landroid/graphics/ColorSpace$Named;"); 808 gColorSpace_Named_LinearExtendedSRGBFieldID = GetStaticFieldIDOrDie(env, 809 gColorSpace_Named_class, "LINEAR_EXTENDED_SRGB", "Landroid/graphics/ColorSpace$Named;"); 810 811 gTransferParameters_class = MakeGlobalRefOrDie(env, FindClassOrDie(env, 812 "android/graphics/ColorSpace$Rgb$TransferParameters")); 813 gTransferParameters_constructorMethodID = GetMethodIDOrDie(env, gTransferParameters_class, 814 "<init>", "(DDDDDDD)V"); 815 816 return 0; 817 } 818