| #define LOG_TAG "GraphicsJNI" |
| |
| #include "jni.h" |
| #include "JNIHelp.h" |
| #include "GraphicsJNI.h" |
| |
| #include "SkCanvas.h" |
| #include "SkDevice.h" |
| #include "SkPicture.h" |
| #include "SkRegion.h" |
| #include <android_runtime/AndroidRuntime.h> |
| |
| void doThrowNPE(JNIEnv* env) { |
| jniThrowNullPointerException(env, NULL); |
| } |
| |
| void doThrowAIOOBE(JNIEnv* env) { |
| jniThrowException(env, "java/lang/ArrayIndexOutOfBoundsException", NULL); |
| } |
| |
| void doThrowRE(JNIEnv* env, const char* msg) { |
| jniThrowRuntimeException(env, msg); |
| } |
| |
| void doThrowIAE(JNIEnv* env, const char* msg) { |
| jniThrowException(env, "java/lang/IllegalArgumentException", msg); |
| } |
| |
| void doThrowISE(JNIEnv* env, const char* msg) { |
| jniThrowException(env, "java/lang/IllegalStateException", msg); |
| } |
| |
| void doThrowOOME(JNIEnv* env, const char* msg) { |
| jniThrowException(env, "java/lang/OutOfMemoryError", msg); |
| } |
| |
| void doThrowIOE(JNIEnv* env, const char* msg) { |
| jniThrowException(env, "java/io/IOException", msg); |
| } |
| |
| bool GraphicsJNI::hasException(JNIEnv *env) { |
| if (env->ExceptionCheck() != 0) { |
| ALOGE("*** Uncaught exception returned from Java call!\n"); |
| env->ExceptionDescribe(); |
| return true; |
| } |
| return false; |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| AutoJavaFloatArray::AutoJavaFloatArray(JNIEnv* env, jfloatArray array, |
| int minLength, JNIAccess access) |
| : fEnv(env), fArray(array), fPtr(NULL), fLen(0) { |
| SkASSERT(env); |
| if (array) { |
| fLen = env->GetArrayLength(array); |
| if (fLen < minLength) { |
| sk_throw(); |
| } |
| fPtr = env->GetFloatArrayElements(array, NULL); |
| } |
| fReleaseMode = (access == kRO_JNIAccess) ? JNI_ABORT : 0; |
| } |
| |
| AutoJavaFloatArray::~AutoJavaFloatArray() { |
| if (fPtr) { |
| fEnv->ReleaseFloatArrayElements(fArray, fPtr, fReleaseMode); |
| } |
| } |
| |
| AutoJavaIntArray::AutoJavaIntArray(JNIEnv* env, jintArray array, |
| int minLength) |
| : fEnv(env), fArray(array), fPtr(NULL), fLen(0) { |
| SkASSERT(env); |
| if (array) { |
| fLen = env->GetArrayLength(array); |
| if (fLen < minLength) { |
| sk_throw(); |
| } |
| fPtr = env->GetIntArrayElements(array, NULL); |
| } |
| } |
| |
| AutoJavaIntArray::~AutoJavaIntArray() { |
| if (fPtr) { |
| fEnv->ReleaseIntArrayElements(fArray, fPtr, 0); |
| } |
| } |
| |
| AutoJavaShortArray::AutoJavaShortArray(JNIEnv* env, jshortArray array, |
| int minLength, JNIAccess access) |
| : fEnv(env), fArray(array), fPtr(NULL), fLen(0) { |
| SkASSERT(env); |
| if (array) { |
| fLen = env->GetArrayLength(array); |
| if (fLen < minLength) { |
| sk_throw(); |
| } |
| fPtr = env->GetShortArrayElements(array, NULL); |
| } |
| fReleaseMode = (access == kRO_JNIAccess) ? JNI_ABORT : 0; |
| } |
| |
| AutoJavaShortArray::~AutoJavaShortArray() { |
| if (fPtr) { |
| fEnv->ReleaseShortArrayElements(fArray, fPtr, fReleaseMode); |
| } |
| } |
| |
| AutoJavaByteArray::AutoJavaByteArray(JNIEnv* env, jbyteArray array, |
| int minLength) |
| : fEnv(env), fArray(array), fPtr(NULL), fLen(0) { |
| SkASSERT(env); |
| if (array) { |
| fLen = env->GetArrayLength(array); |
| if (fLen < minLength) { |
| sk_throw(); |
| } |
| fPtr = env->GetByteArrayElements(array, NULL); |
| } |
| } |
| |
| AutoJavaByteArray::~AutoJavaByteArray() { |
| if (fPtr) { |
| fEnv->ReleaseByteArrayElements(fArray, fPtr, 0); |
| } |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| static jclass gRect_class; |
| static jfieldID gRect_leftFieldID; |
| static jfieldID gRect_topFieldID; |
| static jfieldID gRect_rightFieldID; |
| static jfieldID gRect_bottomFieldID; |
| |
| static jclass gRectF_class; |
| static jfieldID gRectF_leftFieldID; |
| static jfieldID gRectF_topFieldID; |
| static jfieldID gRectF_rightFieldID; |
| static jfieldID gRectF_bottomFieldID; |
| |
| static jclass gPoint_class; |
| static jfieldID gPoint_xFieldID; |
| static jfieldID gPoint_yFieldID; |
| |
| static jclass gPointF_class; |
| static jfieldID gPointF_xFieldID; |
| static jfieldID gPointF_yFieldID; |
| |
| static jclass gBitmap_class; |
| static jfieldID gBitmap_nativeInstanceID; |
| static jmethodID gBitmap_constructorMethodID; |
| static jmethodID gBitmap_reinitMethodID; |
| static jmethodID gBitmap_getAllocationByteCountMethodID; |
| |
| static jclass gBitmapConfig_class; |
| static jfieldID gBitmapConfig_nativeInstanceID; |
| |
| static jclass gBitmapRegionDecoder_class; |
| static jmethodID gBitmapRegionDecoder_constructorMethodID; |
| |
| static jclass gCanvas_class; |
| static jfieldID gCanvas_nativeInstanceID; |
| |
| static jclass gPaint_class; |
| static jfieldID gPaint_nativeInstanceID; |
| |
| static jclass gPicture_class; |
| static jfieldID gPicture_nativeInstanceID; |
| |
| static jclass gRegion_class; |
| static jfieldID gRegion_nativeInstanceID; |
| static jmethodID gRegion_constructorMethodID; |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| void GraphicsJNI::get_jrect(JNIEnv* env, jobject obj, int* L, int* T, int* R, int* B) |
| { |
| SkASSERT(env->IsInstanceOf(obj, gRect_class)); |
| |
| *L = env->GetIntField(obj, gRect_leftFieldID); |
| *T = env->GetIntField(obj, gRect_topFieldID); |
| *R = env->GetIntField(obj, gRect_rightFieldID); |
| *B = env->GetIntField(obj, gRect_bottomFieldID); |
| } |
| |
| void GraphicsJNI::set_jrect(JNIEnv* env, jobject obj, int L, int T, int R, int B) |
| { |
| SkASSERT(env->IsInstanceOf(obj, gRect_class)); |
| |
| env->SetIntField(obj, gRect_leftFieldID, L); |
| env->SetIntField(obj, gRect_topFieldID, T); |
| env->SetIntField(obj, gRect_rightFieldID, R); |
| env->SetIntField(obj, gRect_bottomFieldID, B); |
| } |
| |
| SkIRect* GraphicsJNI::jrect_to_irect(JNIEnv* env, jobject obj, SkIRect* ir) |
| { |
| SkASSERT(env->IsInstanceOf(obj, gRect_class)); |
| |
| ir->set(env->GetIntField(obj, gRect_leftFieldID), |
| env->GetIntField(obj, gRect_topFieldID), |
| env->GetIntField(obj, gRect_rightFieldID), |
| env->GetIntField(obj, gRect_bottomFieldID)); |
| return ir; |
| } |
| |
| void GraphicsJNI::irect_to_jrect(const SkIRect& ir, JNIEnv* env, jobject obj) |
| { |
| SkASSERT(env->IsInstanceOf(obj, gRect_class)); |
| |
| env->SetIntField(obj, gRect_leftFieldID, ir.fLeft); |
| env->SetIntField(obj, gRect_topFieldID, ir.fTop); |
| env->SetIntField(obj, gRect_rightFieldID, ir.fRight); |
| env->SetIntField(obj, gRect_bottomFieldID, ir.fBottom); |
| } |
| |
| SkRect* GraphicsJNI::jrectf_to_rect(JNIEnv* env, jobject obj, SkRect* r) |
| { |
| SkASSERT(env->IsInstanceOf(obj, gRectF_class)); |
| |
| r->set(SkFloatToScalar(env->GetFloatField(obj, gRectF_leftFieldID)), |
| SkFloatToScalar(env->GetFloatField(obj, gRectF_topFieldID)), |
| SkFloatToScalar(env->GetFloatField(obj, gRectF_rightFieldID)), |
| SkFloatToScalar(env->GetFloatField(obj, gRectF_bottomFieldID))); |
| return r; |
| } |
| |
| SkRect* GraphicsJNI::jrect_to_rect(JNIEnv* env, jobject obj, SkRect* r) |
| { |
| SkASSERT(env->IsInstanceOf(obj, gRect_class)); |
| |
| r->set(SkIntToScalar(env->GetIntField(obj, gRect_leftFieldID)), |
| SkIntToScalar(env->GetIntField(obj, gRect_topFieldID)), |
| SkIntToScalar(env->GetIntField(obj, gRect_rightFieldID)), |
| SkIntToScalar(env->GetIntField(obj, gRect_bottomFieldID))); |
| return r; |
| } |
| |
| void GraphicsJNI::rect_to_jrectf(const SkRect& r, JNIEnv* env, jobject obj) |
| { |
| SkASSERT(env->IsInstanceOf(obj, gRectF_class)); |
| |
| env->SetFloatField(obj, gRectF_leftFieldID, SkScalarToFloat(r.fLeft)); |
| env->SetFloatField(obj, gRectF_topFieldID, SkScalarToFloat(r.fTop)); |
| env->SetFloatField(obj, gRectF_rightFieldID, SkScalarToFloat(r.fRight)); |
| env->SetFloatField(obj, gRectF_bottomFieldID, SkScalarToFloat(r.fBottom)); |
| } |
| |
| SkIPoint* GraphicsJNI::jpoint_to_ipoint(JNIEnv* env, jobject obj, SkIPoint* point) |
| { |
| SkASSERT(env->IsInstanceOf(obj, gPoint_class)); |
| |
| point->set(env->GetIntField(obj, gPoint_xFieldID), |
| env->GetIntField(obj, gPoint_yFieldID)); |
| return point; |
| } |
| |
| void GraphicsJNI::ipoint_to_jpoint(const SkIPoint& ir, JNIEnv* env, jobject obj) |
| { |
| SkASSERT(env->IsInstanceOf(obj, gPoint_class)); |
| |
| env->SetIntField(obj, gPoint_xFieldID, ir.fX); |
| env->SetIntField(obj, gPoint_yFieldID, ir.fY); |
| } |
| |
| SkPoint* GraphicsJNI::jpointf_to_point(JNIEnv* env, jobject obj, SkPoint* point) |
| { |
| SkASSERT(env->IsInstanceOf(obj, gPointF_class)); |
| |
| point->set(SkFloatToScalar(env->GetIntField(obj, gPointF_xFieldID)), |
| SkFloatToScalar(env->GetIntField(obj, gPointF_yFieldID))); |
| return point; |
| } |
| |
| void GraphicsJNI::point_to_jpointf(const SkPoint& r, JNIEnv* env, jobject obj) |
| { |
| SkASSERT(env->IsInstanceOf(obj, gPointF_class)); |
| |
| env->SetFloatField(obj, gPointF_xFieldID, SkScalarToFloat(r.fX)); |
| env->SetFloatField(obj, gPointF_yFieldID, SkScalarToFloat(r.fY)); |
| } |
| |
| SkBitmap* GraphicsJNI::getNativeBitmap(JNIEnv* env, jobject bitmap) { |
| SkASSERT(env); |
| SkASSERT(bitmap); |
| SkASSERT(env->IsInstanceOf(bitmap, gBitmap_class)); |
| SkBitmap* b = (SkBitmap*)env->GetIntField(bitmap, gBitmap_nativeInstanceID); |
| SkASSERT(b); |
| return b; |
| } |
| |
| SkBitmap::Config GraphicsJNI::getNativeBitmapConfig(JNIEnv* env, |
| jobject jconfig) { |
| SkASSERT(env); |
| if (NULL == jconfig) { |
| return SkBitmap::kNo_Config; |
| } |
| SkASSERT(env->IsInstanceOf(jconfig, gBitmapConfig_class)); |
| int c = env->GetIntField(jconfig, gBitmapConfig_nativeInstanceID); |
| if (c < 0 || c >= SkBitmap::kConfigCount) { |
| c = SkBitmap::kNo_Config; |
| } |
| return static_cast<SkBitmap::Config>(c); |
| } |
| |
| SkCanvas* GraphicsJNI::getNativeCanvas(JNIEnv* env, jobject canvas) { |
| SkASSERT(env); |
| SkASSERT(canvas); |
| SkASSERT(env->IsInstanceOf(canvas, gCanvas_class)); |
| SkCanvas* c = (SkCanvas*)env->GetIntField(canvas, gCanvas_nativeInstanceID); |
| SkASSERT(c); |
| return c; |
| } |
| |
| SkPaint* GraphicsJNI::getNativePaint(JNIEnv* env, jobject paint) { |
| SkASSERT(env); |
| SkASSERT(paint); |
| SkASSERT(env->IsInstanceOf(paint, gPaint_class)); |
| SkPaint* p = (SkPaint*)env->GetIntField(paint, gPaint_nativeInstanceID); |
| SkASSERT(p); |
| return p; |
| } |
| |
| SkPicture* GraphicsJNI::getNativePicture(JNIEnv* env, jobject picture) |
| { |
| SkASSERT(env); |
| SkASSERT(picture); |
| SkASSERT(env->IsInstanceOf(picture, gPicture_class)); |
| SkPicture* p = (SkPicture*)env->GetIntField(picture, gPicture_nativeInstanceID); |
| SkASSERT(p); |
| return p; |
| } |
| |
| SkRegion* GraphicsJNI::getNativeRegion(JNIEnv* env, jobject region) |
| { |
| SkASSERT(env); |
| SkASSERT(region); |
| SkASSERT(env->IsInstanceOf(region, gRegion_class)); |
| SkRegion* r = (SkRegion*)env->GetIntField(region, gRegion_nativeInstanceID); |
| SkASSERT(r); |
| return r; |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////////////////// |
| |
| jobject GraphicsJNI::createBitmap(JNIEnv* env, SkBitmap* bitmap, jbyteArray buffer, |
| int bitmapCreateFlags, jbyteArray ninepatch, jintArray layoutbounds, int density) |
| { |
| SkASSERT(bitmap); |
| SkASSERT(bitmap->pixelRef()); |
| bool isMutable = bitmapCreateFlags & kBitmapCreateFlag_Mutable; |
| bool isPremultiplied = bitmapCreateFlags & kBitmapCreateFlag_Premultiplied; |
| |
| jobject obj = env->NewObject(gBitmap_class, gBitmap_constructorMethodID, |
| static_cast<jint>(reinterpret_cast<uintptr_t>(bitmap)), buffer, |
| bitmap->width(), bitmap->height(), density, isMutable, isPremultiplied, |
| ninepatch, layoutbounds); |
| hasException(env); // For the side effect of logging. |
| return obj; |
| } |
| |
| jobject GraphicsJNI::createBitmap(JNIEnv* env, SkBitmap* bitmap, int bitmapCreateFlags, |
| jbyteArray ninepatch, int density) |
| { |
| return createBitmap(env, bitmap, NULL, bitmapCreateFlags, ninepatch, NULL, density); |
| } |
| |
| void GraphicsJNI::reinitBitmap(JNIEnv* env, jobject javaBitmap, SkBitmap* bitmap, |
| bool isPremultiplied) |
| { |
| env->CallVoidMethod(javaBitmap, gBitmap_reinitMethodID, |
| bitmap->width(), bitmap->height(), isPremultiplied); |
| } |
| |
| int GraphicsJNI::getBitmapAllocationByteCount(JNIEnv* env, jobject javaBitmap) |
| { |
| return env->CallIntMethod(javaBitmap, gBitmap_getAllocationByteCountMethodID); |
| } |
| |
| jobject GraphicsJNI::createBitmapRegionDecoder(JNIEnv* env, SkBitmapRegionDecoder* bitmap) |
| { |
| SkASSERT(bitmap != NULL); |
| |
| jobject obj = env->NewObject(gBitmapRegionDecoder_class, |
| gBitmapRegionDecoder_constructorMethodID, |
| static_cast<jint>(reinterpret_cast<uintptr_t>(bitmap))); |
| hasException(env); // For the side effect of logging. |
| return obj; |
| } |
| |
| jobject GraphicsJNI::createRegion(JNIEnv* env, SkRegion* region) |
| { |
| SkASSERT(region != NULL); |
| jobject obj = env->NewObject(gRegion_class, gRegion_constructorMethodID, |
| static_cast<jint>(reinterpret_cast<uintptr_t>(region)), 0); |
| hasException(env); // For the side effect of logging. |
| return obj; |
| } |
| |
| static JNIEnv* vm2env(JavaVM* vm) |
| { |
| JNIEnv* env = NULL; |
| if (vm->GetEnv((void**)&env, JNI_VERSION_1_4) != JNI_OK || NULL == env) |
| { |
| SkDebugf("------- [%p] vm->GetEnv() failed\n", vm); |
| sk_throw(); |
| } |
| return env; |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| AndroidPixelRef::AndroidPixelRef(JNIEnv* env, void* storage, size_t size, jbyteArray storageObj, |
| SkColorTable* ctable) : SkMallocPixelRef(storage, size, ctable, (storageObj == NULL)), |
| fWrappedPixelRef(NULL) { |
| SkASSERT(storage); |
| SkASSERT(env); |
| |
| if (env->GetJavaVM(&fVM) != JNI_OK) { |
| SkDebugf("------ [%p] env->GetJavaVM failed\n", env); |
| sk_throw(); |
| } |
| fStorageObj = storageObj; |
| fHasGlobalRef = false; |
| fGlobalRefCnt = 0; |
| |
| // If storageObj is NULL, the memory was NOT allocated on the Java heap |
| fOnJavaHeap = (storageObj != NULL); |
| |
| } |
| |
| AndroidPixelRef::AndroidPixelRef(AndroidPixelRef& wrappedPixelRef, SkColorTable* ctable) : |
| SkMallocPixelRef(wrappedPixelRef.getAddr(), wrappedPixelRef.getSize(), ctable, false), |
| fWrappedPixelRef(wrappedPixelRef.fWrappedPixelRef ? |
| wrappedPixelRef.fWrappedPixelRef : &wrappedPixelRef) |
| { |
| SkASSERT(fWrappedPixelRef); |
| SkSafeRef(fWrappedPixelRef); |
| |
| // don't need to initialize these, as all the relevant logic delegates to the wrapped ref |
| fStorageObj = NULL; |
| fHasGlobalRef = false; |
| fGlobalRefCnt = 0; |
| fOnJavaHeap = false; |
| } |
| |
| AndroidPixelRef::~AndroidPixelRef() { |
| if (fWrappedPixelRef) { |
| SkSafeUnref(fWrappedPixelRef); |
| } else if (fOnJavaHeap) { |
| JNIEnv* env = vm2env(fVM); |
| |
| if (fStorageObj && fHasGlobalRef) { |
| env->DeleteGlobalRef(fStorageObj); |
| } |
| fStorageObj = NULL; |
| } |
| } |
| jbyteArray AndroidPixelRef::getStorageObj() { |
| if (fWrappedPixelRef) { |
| return fWrappedPixelRef->fStorageObj; |
| } |
| return fStorageObj; |
| } |
| |
| void AndroidPixelRef::setLocalJNIRef(jbyteArray arr) { |
| if (fWrappedPixelRef) { |
| // delegate java obj management to the wrapped ref |
| fWrappedPixelRef->setLocalJNIRef(arr); |
| } else if (!fHasGlobalRef) { |
| fStorageObj = arr; |
| } |
| } |
| |
| void AndroidPixelRef::globalRef(void* localref) { |
| if (fWrappedPixelRef) { |
| // delegate java obj management to the wrapped ref |
| fWrappedPixelRef->globalRef(localref); |
| |
| // Note: we only ref and unref the wrapped AndroidPixelRef so that |
| // bitmap->pixelRef()->globalRef() and globalUnref() can be used in a pair, even if |
| // the bitmap has its underlying AndroidPixelRef swapped out/wrapped |
| return; |
| } |
| if (fOnJavaHeap && sk_atomic_inc(&fGlobalRefCnt) == 0) { |
| JNIEnv *env = vm2env(fVM); |
| |
| // If JNI ref was passed, it is always used |
| if (localref) fStorageObj = (jbyteArray) localref; |
| |
| if (fStorageObj == NULL) { |
| SkDebugf("No valid local ref to create a JNI global ref\n"); |
| sk_throw(); |
| } |
| if (fHasGlobalRef) { |
| // This should never happen |
| SkDebugf("Already holding a JNI global ref"); |
| sk_throw(); |
| } |
| |
| fStorageObj = (jbyteArray) env->NewGlobalRef(fStorageObj); |
| // TODO: Check for failure here |
| fHasGlobalRef = true; |
| } |
| ref(); |
| } |
| |
| void AndroidPixelRef::globalUnref() { |
| if (fWrappedPixelRef) { |
| // delegate java obj management to the wrapped ref |
| fWrappedPixelRef->globalUnref(); |
| return; |
| } |
| if (fOnJavaHeap && sk_atomic_dec(&fGlobalRefCnt) == 1) { |
| JNIEnv *env = vm2env(fVM); |
| if (!fHasGlobalRef) { |
| SkDebugf("We don't have a global ref!"); |
| sk_throw(); |
| } |
| env->DeleteGlobalRef(fStorageObj); |
| fStorageObj = NULL; |
| fHasGlobalRef = false; |
| } |
| unref(); |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| extern "C" jbyte* jniGetNonMovableArrayElements(C_JNIEnv* env, jarray arrayObj); |
| |
| jbyteArray GraphicsJNI::allocateJavaPixelRef(JNIEnv* env, SkBitmap* bitmap, |
| SkColorTable* ctable) { |
| Sk64 size64 = bitmap->getSize64(); |
| if (size64.isNeg() || !size64.is32()) { |
| jniThrowException(env, "java/lang/IllegalArgumentException", |
| "bitmap size exceeds 32bits"); |
| return NULL; |
| } |
| |
| size_t size = size64.get32(); |
| jbyteArray arrayObj = env->NewByteArray(size); |
| if (arrayObj) { |
| // TODO: make this work without jniGetNonMovableArrayElements |
| jbyte* addr = jniGetNonMovableArrayElements(&env->functions, arrayObj); |
| if (addr) { |
| SkPixelRef* pr = new AndroidPixelRef(env, (void*) addr, size, arrayObj, ctable); |
| bitmap->setPixelRef(pr)->unref(); |
| // since we're already allocated, we lockPixels right away |
| // HeapAllocator behaves this way too |
| bitmap->lockPixels(); |
| } |
| } |
| |
| return arrayObj; |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| JavaPixelAllocator::JavaPixelAllocator(JNIEnv* env) |
| : fStorageObj(NULL), |
| fAllocCount(0) { |
| if (env->GetJavaVM(&fVM) != JNI_OK) { |
| SkDebugf("------ [%p] env->GetJavaVM failed\n", env); |
| sk_throw(); |
| } |
| } |
| |
| bool JavaPixelAllocator::allocPixelRef(SkBitmap* bitmap, SkColorTable* ctable) { |
| JNIEnv* env = vm2env(fVM); |
| |
| fStorageObj = GraphicsJNI::allocateJavaPixelRef(env, bitmap, ctable); |
| fAllocCount += 1; |
| return fStorageObj != NULL; |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| |
| JavaHeapBitmapRef::JavaHeapBitmapRef(JNIEnv* env, SkBitmap* nativeBitmap, jbyteArray buffer) { |
| fEnv = env; |
| fNativeBitmap = nativeBitmap; |
| fBuffer = buffer; |
| |
| // If the buffer is NULL, the backing memory wasn't allocated on the Java heap |
| if (fBuffer) { |
| ((AndroidPixelRef*) fNativeBitmap->pixelRef())->setLocalJNIRef(fBuffer); |
| } |
| } |
| |
| JavaHeapBitmapRef::~JavaHeapBitmapRef() { |
| if (fBuffer) { |
| ((AndroidPixelRef*) fNativeBitmap->pixelRef())->setLocalJNIRef(NULL); |
| } |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| |
| static jclass make_globalref(JNIEnv* env, const char classname[]) |
| { |
| jclass c = env->FindClass(classname); |
| SkASSERT(c); |
| return (jclass)env->NewGlobalRef(c); |
| } |
| |
| static jfieldID getFieldIDCheck(JNIEnv* env, jclass clazz, |
| const char fieldname[], const char type[]) |
| { |
| jfieldID id = env->GetFieldID(clazz, fieldname, type); |
| SkASSERT(id); |
| return id; |
| } |
| |
| int register_android_graphics_Graphics(JNIEnv* env) |
| { |
| jmethodID m; |
| jclass c; |
| |
| gRect_class = make_globalref(env, "android/graphics/Rect"); |
| gRect_leftFieldID = getFieldIDCheck(env, gRect_class, "left", "I"); |
| gRect_topFieldID = getFieldIDCheck(env, gRect_class, "top", "I"); |
| gRect_rightFieldID = getFieldIDCheck(env, gRect_class, "right", "I"); |
| gRect_bottomFieldID = getFieldIDCheck(env, gRect_class, "bottom", "I"); |
| |
| gRectF_class = make_globalref(env, "android/graphics/RectF"); |
| gRectF_leftFieldID = getFieldIDCheck(env, gRectF_class, "left", "F"); |
| gRectF_topFieldID = getFieldIDCheck(env, gRectF_class, "top", "F"); |
| gRectF_rightFieldID = getFieldIDCheck(env, gRectF_class, "right", "F"); |
| gRectF_bottomFieldID = getFieldIDCheck(env, gRectF_class, "bottom", "F"); |
| |
| gPoint_class = make_globalref(env, "android/graphics/Point"); |
| gPoint_xFieldID = getFieldIDCheck(env, gPoint_class, "x", "I"); |
| gPoint_yFieldID = getFieldIDCheck(env, gPoint_class, "y", "I"); |
| |
| gPointF_class = make_globalref(env, "android/graphics/PointF"); |
| gPointF_xFieldID = getFieldIDCheck(env, gPointF_class, "x", "F"); |
| gPointF_yFieldID = getFieldIDCheck(env, gPointF_class, "y", "F"); |
| |
| gBitmap_class = make_globalref(env, "android/graphics/Bitmap"); |
| gBitmap_nativeInstanceID = getFieldIDCheck(env, gBitmap_class, "mNativeBitmap", "I"); |
| gBitmap_constructorMethodID = env->GetMethodID(gBitmap_class, "<init>", "(I[BIIIZZ[B[I)V"); |
| gBitmap_reinitMethodID = env->GetMethodID(gBitmap_class, "reinit", "(IIZ)V"); |
| gBitmap_getAllocationByteCountMethodID = env->GetMethodID(gBitmap_class, "getAllocationByteCount", "()I"); |
| gBitmapRegionDecoder_class = make_globalref(env, "android/graphics/BitmapRegionDecoder"); |
| gBitmapRegionDecoder_constructorMethodID = env->GetMethodID(gBitmapRegionDecoder_class, "<init>", "(I)V"); |
| |
| gBitmapConfig_class = make_globalref(env, "android/graphics/Bitmap$Config"); |
| gBitmapConfig_nativeInstanceID = getFieldIDCheck(env, gBitmapConfig_class, |
| "nativeInt", "I"); |
| |
| gCanvas_class = make_globalref(env, "android/graphics/Canvas"); |
| gCanvas_nativeInstanceID = getFieldIDCheck(env, gCanvas_class, "mNativeCanvas", "I"); |
| |
| gPaint_class = make_globalref(env, "android/graphics/Paint"); |
| gPaint_nativeInstanceID = getFieldIDCheck(env, gPaint_class, "mNativePaint", "I"); |
| |
| gPicture_class = make_globalref(env, "android/graphics/Picture"); |
| gPicture_nativeInstanceID = getFieldIDCheck(env, gPicture_class, "mNativePicture", "I"); |
| |
| gRegion_class = make_globalref(env, "android/graphics/Region"); |
| gRegion_nativeInstanceID = getFieldIDCheck(env, gRegion_class, "mNativeRegion", "I"); |
| gRegion_constructorMethodID = env->GetMethodID(gRegion_class, "<init>", |
| "(II)V"); |
| |
| return 0; |
| } |