| #define LOG_TAG "Bitmap" |
| #include "Bitmap.h" |
| |
| #include "Paint.h" |
| #include "SkBitmap.h" |
| #include "SkPixelRef.h" |
| #include "SkImageEncoder.h" |
| #include "SkImageInfo.h" |
| #include "SkColorPriv.h" |
| #include "GraphicsJNI.h" |
| #include "SkDither.h" |
| #include "SkUnPreMultiply.h" |
| #include "SkStream.h" |
| |
| #include <binder/Parcel.h> |
| #include "android_os_Parcel.h" |
| #include "android_util_Binder.h" |
| #include "android_nio_utils.h" |
| #include "CreateJavaOutputStreamAdaptor.h" |
| #include <Caches.h> |
| |
| #include "core_jni_helpers.h" |
| |
| #include <jni.h> |
| #include <memory> |
| #include <string> |
| #include <sys/mman.h> |
| #include <cutils/ashmem.h> |
| |
| #define DEBUG_PARCEL 0 |
| #define ASHMEM_BITMAP_MIN_SIZE (128 * (1 << 10)) |
| |
| namespace android { |
| |
| class WrappedPixelRef : public SkPixelRef { |
| public: |
| WrappedPixelRef(Bitmap* wrapper, void* storage, |
| const SkImageInfo& info, size_t rowBytes, SkColorTable* ctable) |
| : SkPixelRef(info) |
| , mBitmap(*wrapper) |
| , mStorage(storage) { |
| reconfigure(info, rowBytes, ctable); |
| } |
| |
| ~WrappedPixelRef() { |
| // Tell SkRefCnt that everything is as it expects by forcing |
| // the refcnt to 1 |
| internal_dispose_restore_refcnt_to_1(); |
| SkSafeUnref(mColorTable); |
| } |
| |
| void reconfigure(const SkImageInfo& newInfo, size_t rowBytes, SkColorTable* ctable) { |
| if (kIndex_8_SkColorType != newInfo.colorType()) { |
| ctable = nullptr; |
| } |
| mRowBytes = rowBytes; |
| if (mColorTable != ctable) { |
| SkSafeUnref(mColorTable); |
| mColorTable = ctable; |
| SkSafeRef(mColorTable); |
| } |
| |
| // Need to validate the alpha type to filter against the color type |
| // to prevent things like a non-opaque RGB565 bitmap |
| SkAlphaType alphaType; |
| LOG_ALWAYS_FATAL_IF(!SkColorTypeValidateAlphaType( |
| newInfo.colorType(), newInfo.alphaType(), &alphaType), |
| "Failed to validate alpha type!"); |
| |
| // Dirty hack is dirty |
| // TODO: Figure something out here, Skia's current design makes this |
| // really hard to work with. Skia really, really wants immutable objects, |
| // but with the nested-ref-count hackery going on that's just not |
| // feasible without going insane trying to figure it out |
| SkImageInfo* myInfo = const_cast<SkImageInfo*>(&this->info()); |
| *myInfo = newInfo; |
| changeAlphaType(alphaType); |
| |
| // Docs say to only call this in the ctor, but we're going to call |
| // it anyway even if this isn't always the ctor. |
| // TODO: Fix this too as part of the above TODO |
| setPreLocked(mStorage, mRowBytes, mColorTable); |
| } |
| |
| // Can't mark as override since SkPixelRef::rowBytes isn't virtual |
| // but that's OK since we just want BitmapWrapper to be able to rely |
| // on calling rowBytes() on an unlocked pixelref, which it will be |
| // doing on a WrappedPixelRef type, not a SkPixelRef, so static |
| // dispatching will do what we want. |
| size_t rowBytes() const { return mRowBytes; } |
| SkColorTable* colorTable() const { return mColorTable; } |
| |
| bool hasHardwareMipMap() const { |
| return mHasHardwareMipMap; |
| } |
| |
| void setHasHardwareMipMap(bool hasMipMap) { |
| mHasHardwareMipMap = hasMipMap; |
| } |
| |
| protected: |
| virtual bool onNewLockPixels(LockRec* rec) override { |
| rec->fPixels = mStorage; |
| rec->fRowBytes = mRowBytes; |
| rec->fColorTable = mColorTable; |
| return true; |
| } |
| |
| virtual void onUnlockPixels() override { |
| // nothing |
| } |
| |
| virtual size_t getAllocatedSizeInBytes() const override { |
| return info().getSafeSize(mRowBytes); |
| } |
| |
| private: |
| Bitmap& mBitmap; |
| void* mStorage; |
| size_t mRowBytes = 0; |
| SkColorTable* mColorTable = nullptr; |
| bool mHasHardwareMipMap = false; |
| |
| virtual void internal_dispose() const override { |
| mBitmap.onStrongRefDestroyed(); |
| } |
| }; |
| |
| Bitmap::Bitmap(JNIEnv* env, jbyteArray storageObj, void* address, |
| const SkImageInfo& info, size_t rowBytes, SkColorTable* ctable) |
| : mPixelStorageType(PixelStorageType::Java) { |
| env->GetJavaVM(&mPixelStorage.java.jvm); |
| mPixelStorage.java.jweakRef = env->NewWeakGlobalRef(storageObj); |
| mPixelStorage.java.jstrongRef = nullptr; |
| mPixelRef.reset(new WrappedPixelRef(this, address, info, rowBytes, ctable)); |
| // Note: this will trigger a call to onStrongRefDestroyed(), but |
| // we want the pixel ref to have a ref count of 0 at this point |
| mPixelRef->unref(); |
| } |
| |
| Bitmap::Bitmap(void* address, void* context, FreeFunc freeFunc, |
| const SkImageInfo& info, size_t rowBytes, SkColorTable* ctable) |
| : mPixelStorageType(PixelStorageType::External) { |
| mPixelStorage.external.address = address; |
| mPixelStorage.external.context = context; |
| mPixelStorage.external.freeFunc = freeFunc; |
| mPixelRef.reset(new WrappedPixelRef(this, address, info, rowBytes, ctable)); |
| // Note: this will trigger a call to onStrongRefDestroyed(), but |
| // we want the pixel ref to have a ref count of 0 at this point |
| mPixelRef->unref(); |
| } |
| |
| Bitmap::Bitmap(void* address, int fd, |
| const SkImageInfo& info, size_t rowBytes, SkColorTable* ctable) |
| : mPixelStorageType(PixelStorageType::Ashmem) { |
| mPixelStorage.ashmem.address = address; |
| mPixelStorage.ashmem.fd = fd; |
| mPixelStorage.ashmem.size = ashmem_get_size_region(fd); |
| mPixelRef.reset(new WrappedPixelRef(this, address, info, rowBytes, ctable)); |
| // Note: this will trigger a call to onStrongRefDestroyed(), but |
| // we want the pixel ref to have a ref count of 0 at this point |
| mPixelRef->unref(); |
| } |
| Bitmap::~Bitmap() { |
| doFreePixels(); |
| } |
| |
| void Bitmap::freePixels() { |
| AutoMutex _lock(mLock); |
| if (mPinnedRefCount == 0) { |
| doFreePixels(); |
| mPixelStorageType = PixelStorageType::Invalid; |
| } |
| } |
| |
| void Bitmap::doFreePixels() { |
| switch (mPixelStorageType) { |
| case PixelStorageType::Invalid: |
| // already free'd, nothing to do |
| break; |
| case PixelStorageType::External: |
| mPixelStorage.external.freeFunc(mPixelStorage.external.address, |
| mPixelStorage.external.context); |
| break; |
| case PixelStorageType::Ashmem: |
| munmap(mPixelStorage.ashmem.address, mPixelStorage.ashmem.size); |
| close(mPixelStorage.ashmem.fd); |
| break; |
| case PixelStorageType::Java: |
| JNIEnv* env = jniEnv(); |
| LOG_ALWAYS_FATAL_IF(mPixelStorage.java.jstrongRef, |
| "Deleting a bitmap wrapper while there are outstanding strong " |
| "references! mPinnedRefCount = %d", mPinnedRefCount); |
| env->DeleteWeakGlobalRef(mPixelStorage.java.jweakRef); |
| break; |
| } |
| |
| if (android::uirenderer::Caches::hasInstance()) { |
| android::uirenderer::Caches::getInstance().textureCache.releaseTexture( |
| mPixelRef->getStableID()); |
| } |
| } |
| |
| bool Bitmap::hasHardwareMipMap() { |
| return mPixelRef->hasHardwareMipMap(); |
| } |
| |
| void Bitmap::setHasHardwareMipMap(bool hasMipMap) { |
| mPixelRef->setHasHardwareMipMap(hasMipMap); |
| } |
| |
| int Bitmap::getAshmemFd() const { |
| switch (mPixelStorageType) { |
| case PixelStorageType::Ashmem: |
| return mPixelStorage.ashmem.fd; |
| default: |
| return -1; |
| } |
| } |
| |
| const SkImageInfo& Bitmap::info() const { |
| return mPixelRef->info(); |
| } |
| |
| size_t Bitmap::rowBytes() const { |
| return mPixelRef->rowBytes(); |
| } |
| |
| SkPixelRef* Bitmap::peekAtPixelRef() const { |
| assertValid(); |
| return mPixelRef.get(); |
| } |
| |
| SkPixelRef* Bitmap::refPixelRef() { |
| assertValid(); |
| android::AutoMutex _lock(mLock); |
| return refPixelRefLocked(); |
| } |
| |
| SkPixelRef* Bitmap::refPixelRefLocked() { |
| mPixelRef->ref(); |
| if (mPixelRef->unique()) { |
| // We just restored this from 0, pin the pixels and inc the strong count |
| // Note that there *might be* an incoming onStrongRefDestroyed from whatever |
| // last unref'd |
| pinPixelsLocked(); |
| mPinnedRefCount++; |
| } |
| return mPixelRef.get(); |
| } |
| |
| void Bitmap::reconfigure(const SkImageInfo& info, size_t rowBytes, |
| SkColorTable* ctable) { |
| { |
| android::AutoMutex _lock(mLock); |
| if (mPinnedRefCount) { |
| ALOGW("Called reconfigure on a bitmap that is in use! This may" |
| " cause graphical corruption!"); |
| } |
| } |
| mPixelRef->reconfigure(info, rowBytes, ctable); |
| } |
| |
| void Bitmap::reconfigure(const SkImageInfo& info) { |
| reconfigure(info, info.minRowBytes(), nullptr); |
| } |
| |
| void Bitmap::setAlphaType(SkAlphaType alphaType) { |
| if (!SkColorTypeValidateAlphaType(info().colorType(), alphaType, &alphaType)) { |
| return; |
| } |
| |
| mPixelRef->changeAlphaType(alphaType); |
| } |
| |
| void Bitmap::detachFromJava() { |
| bool disposeSelf; |
| { |
| android::AutoMutex _lock(mLock); |
| mAttachedToJava = false; |
| disposeSelf = shouldDisposeSelfLocked(); |
| } |
| if (disposeSelf) { |
| delete this; |
| } |
| } |
| |
| bool Bitmap::shouldDisposeSelfLocked() { |
| return mPinnedRefCount == 0 && !mAttachedToJava; |
| } |
| |
| JNIEnv* Bitmap::jniEnv() { |
| JNIEnv* env; |
| auto success = mPixelStorage.java.jvm->GetEnv((void**)&env, JNI_VERSION_1_6); |
| LOG_ALWAYS_FATAL_IF(success != JNI_OK, |
| "Failed to get JNIEnv* from JVM: %p", mPixelStorage.java.jvm); |
| return env; |
| } |
| |
| void Bitmap::onStrongRefDestroyed() { |
| bool disposeSelf = false; |
| { |
| android::AutoMutex _lock(mLock); |
| if (mPinnedRefCount > 0) { |
| mPinnedRefCount--; |
| if (mPinnedRefCount == 0) { |
| unpinPixelsLocked(); |
| disposeSelf = shouldDisposeSelfLocked(); |
| } |
| } |
| } |
| if (disposeSelf) { |
| delete this; |
| } |
| } |
| |
| void Bitmap::pinPixelsLocked() { |
| switch (mPixelStorageType) { |
| case PixelStorageType::Invalid: |
| LOG_ALWAYS_FATAL("Cannot pin invalid pixels!"); |
| break; |
| case PixelStorageType::External: |
| case PixelStorageType::Ashmem: |
| // Nothing to do |
| break; |
| case PixelStorageType::Java: { |
| JNIEnv* env = jniEnv(); |
| if (!mPixelStorage.java.jstrongRef) { |
| mPixelStorage.java.jstrongRef = reinterpret_cast<jbyteArray>( |
| env->NewGlobalRef(mPixelStorage.java.jweakRef)); |
| if (!mPixelStorage.java.jstrongRef) { |
| LOG_ALWAYS_FATAL("Failed to acquire strong reference to pixels"); |
| } |
| } |
| break; |
| } |
| } |
| } |
| |
| void Bitmap::unpinPixelsLocked() { |
| switch (mPixelStorageType) { |
| case PixelStorageType::Invalid: |
| LOG_ALWAYS_FATAL("Cannot unpin invalid pixels!"); |
| break; |
| case PixelStorageType::External: |
| case PixelStorageType::Ashmem: |
| // Don't need to do anything |
| break; |
| case PixelStorageType::Java: { |
| JNIEnv* env = jniEnv(); |
| if (mPixelStorage.java.jstrongRef) { |
| env->DeleteGlobalRef(mPixelStorage.java.jstrongRef); |
| mPixelStorage.java.jstrongRef = nullptr; |
| } |
| break; |
| } |
| } |
| } |
| |
| void Bitmap::getSkBitmap(SkBitmap* outBitmap) { |
| assertValid(); |
| android::AutoMutex _lock(mLock); |
| // Safe because mPixelRef is a WrappedPixelRef type, otherwise rowBytes() |
| // would require locking the pixels first. |
| outBitmap->setInfo(mPixelRef->info(), mPixelRef->rowBytes()); |
| outBitmap->setPixelRef(refPixelRefLocked())->unref(); |
| outBitmap->setHasHardwareMipMap(hasHardwareMipMap()); |
| } |
| |
| void Bitmap::assertValid() const { |
| LOG_ALWAYS_FATAL_IF(mPixelStorageType == PixelStorageType::Invalid, |
| "Error, cannot access an invalid/free'd bitmap here!"); |
| } |
| |
| } // namespace android |
| |
| using namespace android; |
| |
| // Convenience class that does not take a global ref on the pixels, relying |
| // on the caller already having a local JNI ref |
| class LocalScopedBitmap { |
| public: |
| LocalScopedBitmap(jlong bitmapHandle) |
| : mBitmap(reinterpret_cast<Bitmap*>(bitmapHandle)) {} |
| |
| Bitmap* operator->() { |
| return mBitmap; |
| } |
| |
| void* pixels() { |
| return mBitmap->peekAtPixelRef()->pixels(); |
| } |
| |
| bool valid() { |
| return mBitmap && mBitmap->valid(); |
| } |
| |
| private: |
| Bitmap* mBitmap; |
| }; |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| // Conversions to/from SkColor, for get/setPixels, and the create method, which |
| // is basically like setPixels |
| |
| typedef void (*FromColorProc)(void* dst, const SkColor src[], int width, |
| int x, int y); |
| |
| static void FromColor_D32(void* dst, const SkColor src[], int width, |
| int, int) { |
| SkPMColor* d = (SkPMColor*)dst; |
| |
| for (int i = 0; i < width; i++) { |
| *d++ = SkPreMultiplyColor(*src++); |
| } |
| } |
| |
| static void FromColor_D32_Raw(void* dst, const SkColor src[], int width, |
| int, int) { |
| // Needed to thwart the unreachable code detection from clang. |
| static const bool sk_color_ne_zero = SK_COLOR_MATCHES_PMCOLOR_BYTE_ORDER; |
| |
| // SkColor's ordering may be different from SkPMColor |
| if (sk_color_ne_zero) { |
| memcpy(dst, src, width * sizeof(SkColor)); |
| return; |
| } |
| |
| // order isn't same, repack each pixel manually |
| SkPMColor* d = (SkPMColor*)dst; |
| for (int i = 0; i < width; i++) { |
| SkColor c = *src++; |
| *d++ = SkPackARGB32NoCheck(SkColorGetA(c), SkColorGetR(c), |
| SkColorGetG(c), SkColorGetB(c)); |
| } |
| } |
| |
| static void FromColor_D565(void* dst, const SkColor src[], int width, |
| int x, int y) { |
| uint16_t* d = (uint16_t*)dst; |
| |
| DITHER_565_SCAN(y); |
| for (int stop = x + width; x < stop; x++) { |
| SkColor c = *src++; |
| *d++ = SkDitherRGBTo565(SkColorGetR(c), SkColorGetG(c), SkColorGetB(c), |
| DITHER_VALUE(x)); |
| } |
| } |
| |
| static void FromColor_D4444(void* dst, const SkColor src[], int width, |
| int x, int y) { |
| SkPMColor16* d = (SkPMColor16*)dst; |
| |
| DITHER_4444_SCAN(y); |
| for (int stop = x + width; x < stop; x++) { |
| SkPMColor pmc = SkPreMultiplyColor(*src++); |
| *d++ = SkDitherARGB32To4444(pmc, DITHER_VALUE(x)); |
| // *d++ = SkPixel32ToPixel4444(pmc); |
| } |
| } |
| |
| static void FromColor_D4444_Raw(void* dst, const SkColor src[], int width, |
| int x, int y) { |
| SkPMColor16* d = (SkPMColor16*)dst; |
| |
| DITHER_4444_SCAN(y); |
| for (int stop = x + width; x < stop; x++) { |
| SkColor c = *src++; |
| |
| // SkPMColor is used because the ordering is ARGB32, even though the target actually premultiplied |
| SkPMColor pmc = SkPackARGB32NoCheck(SkColorGetA(c), SkColorGetR(c), |
| SkColorGetG(c), SkColorGetB(c)); |
| *d++ = SkDitherARGB32To4444(pmc, DITHER_VALUE(x)); |
| // *d++ = SkPixel32ToPixel4444(pmc); |
| } |
| } |
| |
| static void FromColor_DA8(void* dst, const SkColor src[], int width, int x, int y) { |
| uint8_t* d = (uint8_t*)dst; |
| |
| for (int stop = x + width; x < stop; x++) { |
| *d++ = SkColorGetA(*src++); |
| } |
| } |
| |
| // can return NULL |
| static FromColorProc ChooseFromColorProc(const SkBitmap& bitmap) { |
| switch (bitmap.colorType()) { |
| case kN32_SkColorType: |
| return bitmap.alphaType() == kPremul_SkAlphaType ? FromColor_D32 : FromColor_D32_Raw; |
| case kARGB_4444_SkColorType: |
| return bitmap.alphaType() == kPremul_SkAlphaType ? FromColor_D4444 : |
| FromColor_D4444_Raw; |
| case kRGB_565_SkColorType: |
| return FromColor_D565; |
| case kAlpha_8_SkColorType: |
| return FromColor_DA8; |
| default: |
| break; |
| } |
| return NULL; |
| } |
| |
| bool GraphicsJNI::SetPixels(JNIEnv* env, jintArray srcColors, int srcOffset, int srcStride, |
| int x, int y, int width, int height, const SkBitmap& dstBitmap) { |
| SkAutoLockPixels alp(dstBitmap); |
| void* dst = dstBitmap.getPixels(); |
| FromColorProc proc = ChooseFromColorProc(dstBitmap); |
| |
| if (NULL == dst || NULL == proc) { |
| return false; |
| } |
| |
| const jint* array = env->GetIntArrayElements(srcColors, NULL); |
| const SkColor* src = (const SkColor*)array + srcOffset; |
| |
| // reset to to actual choice from caller |
| dst = dstBitmap.getAddr(x, y); |
| // now copy/convert each scanline |
| for (int y = 0; y < height; y++) { |
| proc(dst, src, width, x, y); |
| src += srcStride; |
| dst = (char*)dst + dstBitmap.rowBytes(); |
| } |
| |
| dstBitmap.notifyPixelsChanged(); |
| |
| env->ReleaseIntArrayElements(srcColors, const_cast<jint*>(array), |
| JNI_ABORT); |
| return true; |
| } |
| |
| //////////////////// ToColor procs |
| |
| typedef void (*ToColorProc)(SkColor dst[], const void* src, int width, |
| SkColorTable*); |
| |
| static void ToColor_S32_Alpha(SkColor dst[], const void* src, int width, |
| SkColorTable*) { |
| SkASSERT(width > 0); |
| const SkPMColor* s = (const SkPMColor*)src; |
| do { |
| *dst++ = SkUnPreMultiply::PMColorToColor(*s++); |
| } while (--width != 0); |
| } |
| |
| static void ToColor_S32_Raw(SkColor dst[], const void* src, int width, |
| SkColorTable*) { |
| SkASSERT(width > 0); |
| const SkPMColor* s = (const SkPMColor*)src; |
| do { |
| SkPMColor c = *s++; |
| *dst++ = SkColorSetARGB(SkGetPackedA32(c), SkGetPackedR32(c), |
| SkGetPackedG32(c), SkGetPackedB32(c)); |
| } while (--width != 0); |
| } |
| |
| static void ToColor_S32_Opaque(SkColor dst[], const void* src, int width, |
| SkColorTable*) { |
| SkASSERT(width > 0); |
| const SkPMColor* s = (const SkPMColor*)src; |
| do { |
| SkPMColor c = *s++; |
| *dst++ = SkColorSetRGB(SkGetPackedR32(c), SkGetPackedG32(c), |
| SkGetPackedB32(c)); |
| } while (--width != 0); |
| } |
| |
| static void ToColor_S4444_Alpha(SkColor dst[], const void* src, int width, |
| SkColorTable*) { |
| SkASSERT(width > 0); |
| const SkPMColor16* s = (const SkPMColor16*)src; |
| do { |
| *dst++ = SkUnPreMultiply::PMColorToColor(SkPixel4444ToPixel32(*s++)); |
| } while (--width != 0); |
| } |
| |
| static void ToColor_S4444_Raw(SkColor dst[], const void* src, int width, |
| SkColorTable*) { |
| SkASSERT(width > 0); |
| const SkPMColor16* s = (const SkPMColor16*)src; |
| do { |
| SkPMColor c = SkPixel4444ToPixel32(*s++); |
| *dst++ = SkColorSetARGB(SkGetPackedA32(c), SkGetPackedR32(c), |
| SkGetPackedG32(c), SkGetPackedB32(c)); |
| } while (--width != 0); |
| } |
| |
| static void ToColor_S4444_Opaque(SkColor dst[], const void* src, int width, |
| SkColorTable*) { |
| SkASSERT(width > 0); |
| const SkPMColor16* s = (const SkPMColor16*)src; |
| do { |
| SkPMColor c = SkPixel4444ToPixel32(*s++); |
| *dst++ = SkColorSetRGB(SkGetPackedR32(c), SkGetPackedG32(c), |
| SkGetPackedB32(c)); |
| } while (--width != 0); |
| } |
| |
| static void ToColor_S565(SkColor dst[], const void* src, int width, |
| SkColorTable*) { |
| SkASSERT(width > 0); |
| const uint16_t* s = (const uint16_t*)src; |
| do { |
| uint16_t c = *s++; |
| *dst++ = SkColorSetRGB(SkPacked16ToR32(c), SkPacked16ToG32(c), |
| SkPacked16ToB32(c)); |
| } while (--width != 0); |
| } |
| |
| static void ToColor_SI8_Alpha(SkColor dst[], const void* src, int width, |
| SkColorTable* ctable) { |
| SkASSERT(width > 0); |
| const uint8_t* s = (const uint8_t*)src; |
| const SkPMColor* colors = ctable->readColors(); |
| do { |
| *dst++ = SkUnPreMultiply::PMColorToColor(colors[*s++]); |
| } while (--width != 0); |
| } |
| |
| static void ToColor_SI8_Raw(SkColor dst[], const void* src, int width, |
| SkColorTable* ctable) { |
| SkASSERT(width > 0); |
| const uint8_t* s = (const uint8_t*)src; |
| const SkPMColor* colors = ctable->readColors(); |
| do { |
| SkPMColor c = colors[*s++]; |
| *dst++ = SkColorSetARGB(SkGetPackedA32(c), SkGetPackedR32(c), |
| SkGetPackedG32(c), SkGetPackedB32(c)); |
| } while (--width != 0); |
| } |
| |
| static void ToColor_SI8_Opaque(SkColor dst[], const void* src, int width, |
| SkColorTable* ctable) { |
| SkASSERT(width > 0); |
| const uint8_t* s = (const uint8_t*)src; |
| const SkPMColor* colors = ctable->readColors(); |
| do { |
| SkPMColor c = colors[*s++]; |
| *dst++ = SkColorSetRGB(SkGetPackedR32(c), SkGetPackedG32(c), |
| SkGetPackedB32(c)); |
| } while (--width != 0); |
| } |
| |
| static void ToColor_SA8(SkColor dst[], const void* src, int width, SkColorTable*) { |
| SkASSERT(width > 0); |
| const uint8_t* s = (const uint8_t*)src; |
| do { |
| uint8_t c = *s++; |
| *dst++ = SkColorSetARGB(c, c, c, c); |
| } while (--width != 0); |
| } |
| |
| // can return NULL |
| static ToColorProc ChooseToColorProc(const SkBitmap& src) { |
| switch (src.colorType()) { |
| case kN32_SkColorType: |
| switch (src.alphaType()) { |
| case kOpaque_SkAlphaType: |
| return ToColor_S32_Opaque; |
| case kPremul_SkAlphaType: |
| return ToColor_S32_Alpha; |
| case kUnpremul_SkAlphaType: |
| return ToColor_S32_Raw; |
| default: |
| return NULL; |
| } |
| case kARGB_4444_SkColorType: |
| switch (src.alphaType()) { |
| case kOpaque_SkAlphaType: |
| return ToColor_S4444_Opaque; |
| case kPremul_SkAlphaType: |
| return ToColor_S4444_Alpha; |
| case kUnpremul_SkAlphaType: |
| return ToColor_S4444_Raw; |
| default: |
| return NULL; |
| } |
| case kRGB_565_SkColorType: |
| return ToColor_S565; |
| case kIndex_8_SkColorType: |
| if (src.getColorTable() == NULL) { |
| return NULL; |
| } |
| switch (src.alphaType()) { |
| case kOpaque_SkAlphaType: |
| return ToColor_SI8_Opaque; |
| case kPremul_SkAlphaType: |
| return ToColor_SI8_Alpha; |
| case kUnpremul_SkAlphaType: |
| return ToColor_SI8_Raw; |
| default: |
| return NULL; |
| } |
| case kAlpha_8_SkColorType: |
| return ToColor_SA8; |
| default: |
| break; |
| } |
| return NULL; |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| static int getPremulBitmapCreateFlags(bool isMutable) { |
| int flags = GraphicsJNI::kBitmapCreateFlag_Premultiplied; |
| if (isMutable) flags |= GraphicsJNI::kBitmapCreateFlag_Mutable; |
| return flags; |
| } |
| |
| static jobject Bitmap_creator(JNIEnv* env, jobject, jintArray jColors, |
| jint offset, jint stride, jint width, jint height, |
| jint configHandle, jboolean isMutable) { |
| SkColorType colorType = GraphicsJNI::legacyBitmapConfigToColorType(configHandle); |
| if (NULL != jColors) { |
| size_t n = env->GetArrayLength(jColors); |
| if (n < SkAbs32(stride) * (size_t)height) { |
| doThrowAIOOBE(env); |
| return NULL; |
| } |
| } |
| |
| // ARGB_4444 is a deprecated format, convert automatically to 8888 |
| if (colorType == kARGB_4444_SkColorType) { |
| colorType = kN32_SkColorType; |
| } |
| |
| SkBitmap bitmap; |
| bitmap.setInfo(SkImageInfo::Make(width, height, colorType, kPremul_SkAlphaType)); |
| |
| Bitmap* nativeBitmap = GraphicsJNI::allocateJavaPixelRef(env, &bitmap, NULL); |
| if (!nativeBitmap) { |
| return NULL; |
| } |
| |
| if (jColors != NULL) { |
| GraphicsJNI::SetPixels(env, jColors, offset, stride, |
| 0, 0, width, height, bitmap); |
| } |
| |
| return GraphicsJNI::createBitmap(env, nativeBitmap, |
| getPremulBitmapCreateFlags(isMutable)); |
| } |
| |
| static jobject Bitmap_copy(JNIEnv* env, jobject, jlong srcHandle, |
| jint dstConfigHandle, jboolean isMutable) { |
| SkBitmap src; |
| reinterpret_cast<Bitmap*>(srcHandle)->getSkBitmap(&src); |
| SkColorType dstCT = GraphicsJNI::legacyBitmapConfigToColorType(dstConfigHandle); |
| SkBitmap result; |
| JavaPixelAllocator allocator(env); |
| |
| if (!src.copyTo(&result, dstCT, &allocator)) { |
| return NULL; |
| } |
| Bitmap* bitmap = allocator.getStorageObjAndReset(); |
| return GraphicsJNI::createBitmap(env, bitmap, |
| getPremulBitmapCreateFlags(isMutable)); |
| } |
| |
| static jobject Bitmap_copyAshmem(JNIEnv* env, jobject, jlong srcHandle) { |
| SkBitmap src; |
| reinterpret_cast<Bitmap*>(srcHandle)->getSkBitmap(&src); |
| SkBitmap result; |
| |
| AshmemPixelAllocator allocator(env); |
| if (!src.copyTo(&result, &allocator)) { |
| return NULL; |
| } |
| Bitmap* bitmap = allocator.getStorageObjAndReset(); |
| bitmap->peekAtPixelRef()->setImmutable(); |
| jobject ret = GraphicsJNI::createBitmap(env, bitmap, getPremulBitmapCreateFlags(false)); |
| return ret; |
| } |
| |
| static void Bitmap_destructor(JNIEnv* env, jobject, jlong bitmapHandle) { |
| LocalScopedBitmap bitmap(bitmapHandle); |
| bitmap->detachFromJava(); |
| } |
| |
| static jboolean Bitmap_recycle(JNIEnv* env, jobject, jlong bitmapHandle) { |
| LocalScopedBitmap bitmap(bitmapHandle); |
| bitmap->freePixels(); |
| return JNI_TRUE; |
| } |
| |
| static void Bitmap_reconfigure(JNIEnv* env, jobject clazz, jlong bitmapHandle, |
| jint width, jint height, jint configHandle, jint allocSize, |
| jboolean requestPremul) { |
| LocalScopedBitmap bitmap(bitmapHandle); |
| SkColorType colorType = GraphicsJNI::legacyBitmapConfigToColorType(configHandle); |
| |
| // ARGB_4444 is a deprecated format, convert automatically to 8888 |
| if (colorType == kARGB_4444_SkColorType) { |
| colorType = kN32_SkColorType; |
| } |
| |
| if (width * height * SkColorTypeBytesPerPixel(colorType) > allocSize) { |
| // done in native as there's no way to get BytesPerPixel in Java |
| doThrowIAE(env, "Bitmap not large enough to support new configuration"); |
| return; |
| } |
| SkAlphaType alphaType; |
| if (bitmap->info().colorType() != kRGB_565_SkColorType |
| && bitmap->info().alphaType() == kOpaque_SkAlphaType) { |
| // If the original bitmap was set to opaque, keep that setting, unless it |
| // was 565, which is required to be opaque. |
| alphaType = kOpaque_SkAlphaType; |
| } else { |
| // Otherwise respect the premultiplied request. |
| alphaType = requestPremul ? kPremul_SkAlphaType : kUnpremul_SkAlphaType; |
| } |
| bitmap->reconfigure(SkImageInfo::Make(width, height, colorType, alphaType)); |
| } |
| |
| // These must match the int values in Bitmap.java |
| enum JavaEncodeFormat { |
| kJPEG_JavaEncodeFormat = 0, |
| kPNG_JavaEncodeFormat = 1, |
| kWEBP_JavaEncodeFormat = 2 |
| }; |
| |
| static jboolean Bitmap_compress(JNIEnv* env, jobject clazz, jlong bitmapHandle, |
| jint format, jint quality, |
| jobject jstream, jbyteArray jstorage) { |
| |
| LocalScopedBitmap bitmap(bitmapHandle); |
| SkImageEncoder::Type fm; |
| |
| switch (format) { |
| case kJPEG_JavaEncodeFormat: |
| fm = SkImageEncoder::kJPEG_Type; |
| break; |
| case kPNG_JavaEncodeFormat: |
| fm = SkImageEncoder::kPNG_Type; |
| break; |
| case kWEBP_JavaEncodeFormat: |
| fm = SkImageEncoder::kWEBP_Type; |
| break; |
| default: |
| return JNI_FALSE; |
| } |
| |
| if (!bitmap.valid()) { |
| return JNI_FALSE; |
| } |
| |
| bool success = false; |
| |
| std::unique_ptr<SkWStream> strm(CreateJavaOutputStreamAdaptor(env, jstream, jstorage)); |
| if (!strm.get()) { |
| return JNI_FALSE; |
| } |
| |
| std::unique_ptr<SkImageEncoder> encoder(SkImageEncoder::Create(fm)); |
| if (encoder.get()) { |
| SkBitmap skbitmap; |
| bitmap->getSkBitmap(&skbitmap); |
| success = encoder->encodeStream(strm.get(), skbitmap, quality); |
| } |
| return success ? JNI_TRUE : JNI_FALSE; |
| } |
| |
| static void Bitmap_erase(JNIEnv* env, jobject, jlong bitmapHandle, jint color) { |
| LocalScopedBitmap bitmap(bitmapHandle); |
| SkBitmap skBitmap; |
| bitmap->getSkBitmap(&skBitmap); |
| skBitmap.eraseColor(color); |
| } |
| |
| static jint Bitmap_rowBytes(JNIEnv* env, jobject, jlong bitmapHandle) { |
| LocalScopedBitmap bitmap(bitmapHandle); |
| return static_cast<jint>(bitmap->rowBytes()); |
| } |
| |
| static jint Bitmap_config(JNIEnv* env, jobject, jlong bitmapHandle) { |
| LocalScopedBitmap bitmap(bitmapHandle); |
| return GraphicsJNI::colorTypeToLegacyBitmapConfig(bitmap->info().colorType()); |
| } |
| |
| static jint Bitmap_getGenerationId(JNIEnv* env, jobject, jlong bitmapHandle) { |
| LocalScopedBitmap bitmap(bitmapHandle); |
| return static_cast<jint>(bitmap->peekAtPixelRef()->getGenerationID()); |
| } |
| |
| static jboolean Bitmap_isPremultiplied(JNIEnv* env, jobject, jlong bitmapHandle) { |
| LocalScopedBitmap bitmap(bitmapHandle); |
| if (bitmap->info().alphaType() == kPremul_SkAlphaType) { |
| return JNI_TRUE; |
| } |
| return JNI_FALSE; |
| } |
| |
| static jboolean Bitmap_hasAlpha(JNIEnv* env, jobject, jlong bitmapHandle) { |
| LocalScopedBitmap bitmap(bitmapHandle); |
| return !bitmap->info().isOpaque() ? JNI_TRUE : JNI_FALSE; |
| } |
| |
| static void Bitmap_setHasAlpha(JNIEnv* env, jobject, jlong bitmapHandle, |
| jboolean hasAlpha, jboolean requestPremul) { |
| LocalScopedBitmap bitmap(bitmapHandle); |
| if (hasAlpha) { |
| bitmap->setAlphaType( |
| requestPremul ? kPremul_SkAlphaType : kUnpremul_SkAlphaType); |
| } else { |
| bitmap->setAlphaType(kOpaque_SkAlphaType); |
| } |
| } |
| |
| static void Bitmap_setPremultiplied(JNIEnv* env, jobject, jlong bitmapHandle, |
| jboolean isPremul) { |
| LocalScopedBitmap bitmap(bitmapHandle); |
| if (!bitmap->info().isOpaque()) { |
| if (isPremul) { |
| bitmap->setAlphaType(kPremul_SkAlphaType); |
| } else { |
| bitmap->setAlphaType(kUnpremul_SkAlphaType); |
| } |
| } |
| } |
| |
| static jboolean Bitmap_hasMipMap(JNIEnv* env, jobject, jlong bitmapHandle) { |
| LocalScopedBitmap bitmap(bitmapHandle); |
| return bitmap->hasHardwareMipMap() ? JNI_TRUE : JNI_FALSE; |
| } |
| |
| static void Bitmap_setHasMipMap(JNIEnv* env, jobject, jlong bitmapHandle, |
| jboolean hasMipMap) { |
| LocalScopedBitmap bitmap(bitmapHandle); |
| bitmap->setHasHardwareMipMap(hasMipMap); |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| static jobject Bitmap_createFromParcel(JNIEnv* env, jobject, jobject parcel) { |
| if (parcel == NULL) { |
| SkDebugf("-------- unparcel parcel is NULL\n"); |
| return NULL; |
| } |
| |
| android::Parcel* p = android::parcelForJavaObject(env, parcel); |
| |
| const bool isMutable = p->readInt32() != 0; |
| const SkColorType colorType = (SkColorType)p->readInt32(); |
| const SkAlphaType alphaType = (SkAlphaType)p->readInt32(); |
| const int width = p->readInt32(); |
| const int height = p->readInt32(); |
| const int rowBytes = p->readInt32(); |
| const int density = p->readInt32(); |
| |
| if (kN32_SkColorType != colorType && |
| kRGB_565_SkColorType != colorType && |
| kARGB_4444_SkColorType != colorType && |
| kIndex_8_SkColorType != colorType && |
| kAlpha_8_SkColorType != colorType) { |
| SkDebugf("Bitmap_createFromParcel unknown colortype: %d\n", colorType); |
| return NULL; |
| } |
| |
| std::unique_ptr<SkBitmap> bitmap(new SkBitmap); |
| |
| if (!bitmap->setInfo(SkImageInfo::Make(width, height, colorType, alphaType), rowBytes)) { |
| return NULL; |
| } |
| |
| SkColorTable* ctable = NULL; |
| if (colorType == kIndex_8_SkColorType) { |
| int count = p->readInt32(); |
| if (count < 0 || count > 256) { |
| // The data is corrupt, since SkColorTable enforces a value between 0 and 256, |
| // inclusive. |
| return NULL; |
| } |
| if (count > 0) { |
| size_t size = count * sizeof(SkPMColor); |
| const SkPMColor* src = (const SkPMColor*)p->readInplace(size); |
| if (src == NULL) { |
| return NULL; |
| } |
| ctable = new SkColorTable(src, count); |
| } |
| } |
| |
| // Read the bitmap blob. |
| size_t size = bitmap->getSize(); |
| android::Parcel::ReadableBlob blob; |
| android::status_t status = p->readBlob(size, &blob); |
| if (status) { |
| SkSafeUnref(ctable); |
| doThrowRE(env, "Could not read bitmap blob."); |
| return NULL; |
| } |
| |
| // Map the bitmap in place from the ashmem region if possible otherwise copy. |
| Bitmap* nativeBitmap; |
| if (blob.fd() >= 0 && (blob.isMutable() || !isMutable) && (size >= ASHMEM_BITMAP_MIN_SIZE)) { |
| #if DEBUG_PARCEL |
| ALOGD("Bitmap.createFromParcel: mapped contents of %s bitmap from %s blob " |
| "(fds %s)", |
| isMutable ? "mutable" : "immutable", |
| blob.isMutable() ? "mutable" : "immutable", |
| p->allowFds() ? "allowed" : "forbidden"); |
| #endif |
| // Dup the file descriptor so we can keep a reference to it after the Parcel |
| // is disposed. |
| int dupFd = dup(blob.fd()); |
| if (dupFd < 0) { |
| ALOGE("Error allocating dup fd. Error:%d", errno); |
| blob.release(); |
| SkSafeUnref(ctable); |
| doThrowRE(env, "Could not allocate dup blob fd."); |
| return NULL; |
| } |
| |
| // Map the pixels in place and take ownership of the ashmem region. |
| nativeBitmap = GraphicsJNI::mapAshmemPixelRef(env, bitmap.get(), |
| ctable, dupFd, const_cast<void*>(blob.data()), !isMutable); |
| SkSafeUnref(ctable); |
| if (!nativeBitmap) { |
| close(dupFd); |
| blob.release(); |
| doThrowRE(env, "Could not allocate ashmem pixel ref."); |
| return NULL; |
| } |
| |
| // Clear the blob handle, don't release it. |
| blob.clear(); |
| } else { |
| #if DEBUG_PARCEL |
| if (blob.fd() >= 0) { |
| ALOGD("Bitmap.createFromParcel: copied contents of mutable bitmap " |
| "from immutable blob (fds %s)", |
| p->allowFds() ? "allowed" : "forbidden"); |
| } else { |
| ALOGD("Bitmap.createFromParcel: copied contents from %s blob " |
| "(fds %s)", |
| blob.isMutable() ? "mutable" : "immutable", |
| p->allowFds() ? "allowed" : "forbidden"); |
| } |
| #endif |
| |
| // Copy the pixels into a new buffer. |
| nativeBitmap = GraphicsJNI::allocateJavaPixelRef(env, bitmap.get(), ctable); |
| SkSafeUnref(ctable); |
| if (!nativeBitmap) { |
| blob.release(); |
| doThrowRE(env, "Could not allocate java pixel ref."); |
| return NULL; |
| } |
| bitmap->lockPixels(); |
| memcpy(bitmap->getPixels(), blob.data(), size); |
| bitmap->unlockPixels(); |
| |
| // Release the blob handle. |
| blob.release(); |
| } |
| |
| return GraphicsJNI::createBitmap(env, nativeBitmap, |
| getPremulBitmapCreateFlags(isMutable), NULL, NULL, density); |
| } |
| |
| static jboolean Bitmap_writeToParcel(JNIEnv* env, jobject, |
| jlong bitmapHandle, |
| jboolean isMutable, jint density, |
| jobject parcel) { |
| if (parcel == NULL) { |
| SkDebugf("------- writeToParcel null parcel\n"); |
| return JNI_FALSE; |
| } |
| |
| android::Parcel* p = android::parcelForJavaObject(env, parcel); |
| SkBitmap bitmap; |
| |
| android::Bitmap* androidBitmap = reinterpret_cast<Bitmap*>(bitmapHandle); |
| androidBitmap->getSkBitmap(&bitmap); |
| |
| p->writeInt32(isMutable); |
| p->writeInt32(bitmap.colorType()); |
| p->writeInt32(bitmap.alphaType()); |
| p->writeInt32(bitmap.width()); |
| p->writeInt32(bitmap.height()); |
| p->writeInt32(bitmap.rowBytes()); |
| p->writeInt32(density); |
| |
| if (bitmap.colorType() == kIndex_8_SkColorType) { |
| SkColorTable* ctable = bitmap.getColorTable(); |
| if (ctable != NULL) { |
| int count = ctable->count(); |
| p->writeInt32(count); |
| memcpy(p->writeInplace(count * sizeof(SkPMColor)), |
| ctable->readColors(), count * sizeof(SkPMColor)); |
| } else { |
| p->writeInt32(0); // indicate no ctable |
| } |
| } |
| |
| // Transfer the underlying ashmem region if we have one and it's immutable. |
| android::status_t status; |
| int fd = androidBitmap->getAshmemFd(); |
| if (fd >= 0 && !isMutable && p->allowFds()) { |
| #if DEBUG_PARCEL |
| ALOGD("Bitmap.writeToParcel: transferring immutable bitmap's ashmem fd as " |
| "immutable blob (fds %s)", |
| p->allowFds() ? "allowed" : "forbidden"); |
| #endif |
| |
| status = p->writeDupImmutableBlobFileDescriptor(fd); |
| if (status) { |
| doThrowRE(env, "Could not write bitmap blob file descriptor."); |
| return JNI_FALSE; |
| } |
| return JNI_TRUE; |
| } |
| |
| // Copy the bitmap to a new blob. |
| bool mutableCopy = isMutable; |
| #if DEBUG_PARCEL |
| ALOGD("Bitmap.writeToParcel: copying %s bitmap into new %s blob (fds %s)", |
| isMutable ? "mutable" : "immutable", |
| mutableCopy ? "mutable" : "immutable", |
| p->allowFds() ? "allowed" : "forbidden"); |
| #endif |
| |
| size_t size = bitmap.getSize(); |
| android::Parcel::WritableBlob blob; |
| status = p->writeBlob(size, mutableCopy, &blob); |
| if (status) { |
| doThrowRE(env, "Could not copy bitmap to parcel blob."); |
| return JNI_FALSE; |
| } |
| |
| bitmap.lockPixels(); |
| const void* pSrc = bitmap.getPixels(); |
| if (pSrc == NULL) { |
| memset(blob.data(), 0, size); |
| } else { |
| memcpy(blob.data(), pSrc, size); |
| } |
| bitmap.unlockPixels(); |
| |
| blob.release(); |
| return JNI_TRUE; |
| } |
| |
| static jobject Bitmap_extractAlpha(JNIEnv* env, jobject clazz, |
| jlong srcHandle, jlong paintHandle, |
| jintArray offsetXY) { |
| SkBitmap src; |
| reinterpret_cast<Bitmap*>(srcHandle)->getSkBitmap(&src); |
| const android::Paint* paint = reinterpret_cast<android::Paint*>(paintHandle); |
| SkIPoint offset; |
| SkBitmap dst; |
| JavaPixelAllocator allocator(env); |
| |
| src.extractAlpha(&dst, paint, &allocator, &offset); |
| // If Skia can't allocate pixels for destination bitmap, it resets |
| // it, that is set its pixels buffer to NULL, and zero width and height. |
| if (dst.getPixels() == NULL && src.getPixels() != NULL) { |
| doThrowOOME(env, "failed to allocate pixels for alpha"); |
| return NULL; |
| } |
| if (offsetXY != 0 && env->GetArrayLength(offsetXY) >= 2) { |
| int* array = env->GetIntArrayElements(offsetXY, NULL); |
| array[0] = offset.fX; |
| array[1] = offset.fY; |
| env->ReleaseIntArrayElements(offsetXY, array, 0); |
| } |
| |
| return GraphicsJNI::createBitmap(env, allocator.getStorageObjAndReset(), |
| getPremulBitmapCreateFlags(true)); |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| static jint Bitmap_getPixel(JNIEnv* env, jobject, jlong bitmapHandle, |
| jint x, jint y) { |
| SkBitmap bitmap; |
| reinterpret_cast<Bitmap*>(bitmapHandle)->getSkBitmap(&bitmap); |
| SkAutoLockPixels alp(bitmap); |
| |
| ToColorProc proc = ChooseToColorProc(bitmap); |
| if (NULL == proc) { |
| return 0; |
| } |
| const void* src = bitmap.getAddr(x, y); |
| if (NULL == src) { |
| return 0; |
| } |
| |
| SkColor dst[1]; |
| proc(dst, src, 1, bitmap.getColorTable()); |
| return static_cast<jint>(dst[0]); |
| } |
| |
| static void Bitmap_getPixels(JNIEnv* env, jobject, jlong bitmapHandle, |
| jintArray pixelArray, jint offset, jint stride, |
| jint x, jint y, jint width, jint height) { |
| SkBitmap bitmap; |
| reinterpret_cast<Bitmap*>(bitmapHandle)->getSkBitmap(&bitmap); |
| SkAutoLockPixels alp(bitmap); |
| |
| ToColorProc proc = ChooseToColorProc(bitmap); |
| if (NULL == proc) { |
| return; |
| } |
| const void* src = bitmap.getAddr(x, y); |
| if (NULL == src) { |
| return; |
| } |
| |
| SkColorTable* ctable = bitmap.getColorTable(); |
| jint* dst = env->GetIntArrayElements(pixelArray, NULL); |
| SkColor* d = (SkColor*)dst + offset; |
| while (--height >= 0) { |
| proc(d, src, width, ctable); |
| d += stride; |
| src = (void*)((const char*)src + bitmap.rowBytes()); |
| } |
| env->ReleaseIntArrayElements(pixelArray, dst, 0); |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| static void Bitmap_setPixel(JNIEnv* env, jobject, jlong bitmapHandle, |
| jint x, jint y, jint colorHandle) { |
| SkBitmap bitmap; |
| reinterpret_cast<Bitmap*>(bitmapHandle)->getSkBitmap(&bitmap); |
| SkColor color = static_cast<SkColor>(colorHandle); |
| SkAutoLockPixels alp(bitmap); |
| if (NULL == bitmap.getPixels()) { |
| return; |
| } |
| |
| FromColorProc proc = ChooseFromColorProc(bitmap); |
| if (NULL == proc) { |
| return; |
| } |
| |
| proc(bitmap.getAddr(x, y), &color, 1, x, y); |
| bitmap.notifyPixelsChanged(); |
| } |
| |
| static void Bitmap_setPixels(JNIEnv* env, jobject, jlong bitmapHandle, |
| jintArray pixelArray, jint offset, jint stride, |
| jint x, jint y, jint width, jint height) { |
| SkBitmap bitmap; |
| reinterpret_cast<Bitmap*>(bitmapHandle)->getSkBitmap(&bitmap); |
| GraphicsJNI::SetPixels(env, pixelArray, offset, stride, |
| x, y, width, height, bitmap); |
| } |
| |
| static void Bitmap_copyPixelsToBuffer(JNIEnv* env, jobject, |
| jlong bitmapHandle, jobject jbuffer) { |
| SkBitmap bitmap; |
| reinterpret_cast<Bitmap*>(bitmapHandle)->getSkBitmap(&bitmap); |
| SkAutoLockPixels alp(bitmap); |
| const void* src = bitmap.getPixels(); |
| |
| if (NULL != src) { |
| android::AutoBufferPointer abp(env, jbuffer, JNI_TRUE); |
| |
| // the java side has already checked that buffer is large enough |
| memcpy(abp.pointer(), src, bitmap.getSize()); |
| } |
| } |
| |
| static void Bitmap_copyPixelsFromBuffer(JNIEnv* env, jobject, |
| jlong bitmapHandle, jobject jbuffer) { |
| SkBitmap bitmap; |
| reinterpret_cast<Bitmap*>(bitmapHandle)->getSkBitmap(&bitmap); |
| SkAutoLockPixels alp(bitmap); |
| void* dst = bitmap.getPixels(); |
| |
| if (NULL != dst) { |
| android::AutoBufferPointer abp(env, jbuffer, JNI_FALSE); |
| // the java side has already checked that buffer is large enough |
| memcpy(dst, abp.pointer(), bitmap.getSize()); |
| bitmap.notifyPixelsChanged(); |
| } |
| } |
| |
| static jboolean Bitmap_sameAs(JNIEnv* env, jobject, jlong bm0Handle, |
| jlong bm1Handle) { |
| SkBitmap bm0; |
| SkBitmap bm1; |
| reinterpret_cast<Bitmap*>(bm0Handle)->getSkBitmap(&bm0); |
| reinterpret_cast<Bitmap*>(bm1Handle)->getSkBitmap(&bm1); |
| if (bm0.width() != bm1.width() || |
| bm0.height() != bm1.height() || |
| bm0.colorType() != bm1.colorType()) { |
| return JNI_FALSE; |
| } |
| |
| SkAutoLockPixels alp0(bm0); |
| SkAutoLockPixels alp1(bm1); |
| |
| // if we can't load the pixels, return false |
| if (NULL == bm0.getPixels() || NULL == bm1.getPixels()) { |
| return JNI_FALSE; |
| } |
| |
| if (bm0.colorType() == kIndex_8_SkColorType) { |
| SkColorTable* ct0 = bm0.getColorTable(); |
| SkColorTable* ct1 = bm1.getColorTable(); |
| if (NULL == ct0 || NULL == ct1) { |
| return JNI_FALSE; |
| } |
| if (ct0->count() != ct1->count()) { |
| return JNI_FALSE; |
| } |
| |
| const size_t size = ct0->count() * sizeof(SkPMColor); |
| if (memcmp(ct0->readColors(), ct1->readColors(), size) != 0) { |
| return JNI_FALSE; |
| } |
| } |
| |
| // now compare each scanline. We can't do the entire buffer at once, |
| // since we don't care about the pixel values that might extend beyond |
| // the width (since the scanline might be larger than the logical width) |
| const int h = bm0.height(); |
| const size_t size = bm0.width() * bm0.bytesPerPixel(); |
| for (int y = 0; y < h; y++) { |
| // SkBitmap::getAddr(int, int) may return NULL due to unrecognized config |
| // (ex: kRLE_Index8_Config). This will cause memcmp method to crash. Since bm0 |
| // and bm1 both have pixel data() (have passed NULL == getPixels() check), |
| // those 2 bitmaps should be valid (only unrecognized), we return JNI_FALSE |
| // to warn user those 2 unrecognized config bitmaps may be different. |
| void *bm0Addr = bm0.getAddr(0, y); |
| void *bm1Addr = bm1.getAddr(0, y); |
| |
| if(bm0Addr == NULL || bm1Addr == NULL) { |
| return JNI_FALSE; |
| } |
| |
| if (memcmp(bm0Addr, bm1Addr, size) != 0) { |
| return JNI_FALSE; |
| } |
| } |
| return JNI_TRUE; |
| } |
| |
| static jlong Bitmap_refPixelRef(JNIEnv* env, jobject, jlong bitmapHandle) { |
| LocalScopedBitmap bitmap(bitmapHandle); |
| SkPixelRef* pixelRef = bitmap.valid() ? bitmap->peekAtPixelRef() : nullptr; |
| SkSafeRef(pixelRef); |
| return reinterpret_cast<jlong>(pixelRef); |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| static const JNINativeMethod gBitmapMethods[] = { |
| { "nativeCreate", "([IIIIIIZ)Landroid/graphics/Bitmap;", |
| (void*)Bitmap_creator }, |
| { "nativeCopy", "(JIZ)Landroid/graphics/Bitmap;", |
| (void*)Bitmap_copy }, |
| { "nativeCopyAshmem", "(J)Landroid/graphics/Bitmap;", |
| (void*)Bitmap_copyAshmem }, |
| { "nativeDestructor", "(J)V", (void*)Bitmap_destructor }, |
| { "nativeRecycle", "(J)Z", (void*)Bitmap_recycle }, |
| { "nativeReconfigure", "(JIIIIZ)V", (void*)Bitmap_reconfigure }, |
| { "nativeCompress", "(JIILjava/io/OutputStream;[B)Z", |
| (void*)Bitmap_compress }, |
| { "nativeErase", "(JI)V", (void*)Bitmap_erase }, |
| { "nativeRowBytes", "(J)I", (void*)Bitmap_rowBytes }, |
| { "nativeConfig", "(J)I", (void*)Bitmap_config }, |
| { "nativeHasAlpha", "(J)Z", (void*)Bitmap_hasAlpha }, |
| { "nativeIsPremultiplied", "(J)Z", (void*)Bitmap_isPremultiplied}, |
| { "nativeSetHasAlpha", "(JZZ)V", (void*)Bitmap_setHasAlpha}, |
| { "nativeSetPremultiplied", "(JZ)V", (void*)Bitmap_setPremultiplied}, |
| { "nativeHasMipMap", "(J)Z", (void*)Bitmap_hasMipMap }, |
| { "nativeSetHasMipMap", "(JZ)V", (void*)Bitmap_setHasMipMap }, |
| { "nativeCreateFromParcel", |
| "(Landroid/os/Parcel;)Landroid/graphics/Bitmap;", |
| (void*)Bitmap_createFromParcel }, |
| { "nativeWriteToParcel", "(JZILandroid/os/Parcel;)Z", |
| (void*)Bitmap_writeToParcel }, |
| { "nativeExtractAlpha", "(JJ[I)Landroid/graphics/Bitmap;", |
| (void*)Bitmap_extractAlpha }, |
| { "nativeGenerationId", "(J)I", (void*)Bitmap_getGenerationId }, |
| { "nativeGetPixel", "(JII)I", (void*)Bitmap_getPixel }, |
| { "nativeGetPixels", "(J[IIIIIII)V", (void*)Bitmap_getPixels }, |
| { "nativeSetPixel", "(JIII)V", (void*)Bitmap_setPixel }, |
| { "nativeSetPixels", "(J[IIIIIII)V", (void*)Bitmap_setPixels }, |
| { "nativeCopyPixelsToBuffer", "(JLjava/nio/Buffer;)V", |
| (void*)Bitmap_copyPixelsToBuffer }, |
| { "nativeCopyPixelsFromBuffer", "(JLjava/nio/Buffer;)V", |
| (void*)Bitmap_copyPixelsFromBuffer }, |
| { "nativeSameAs", "(JJ)Z", (void*)Bitmap_sameAs }, |
| { "nativeRefPixelRef", "(J)J", (void*)Bitmap_refPixelRef }, |
| }; |
| |
| int register_android_graphics_Bitmap(JNIEnv* env) |
| { |
| return android::RegisterMethodsOrDie(env, "android/graphics/Bitmap", gBitmapMethods, |
| NELEM(gBitmapMethods)); |
| } |