bool SkBitmapProcShader::toDumpString(SkString* str) const {
str->printf("BitmapShader: [%d %d %d",
fRawBitmap.width(), fRawBitmap.height(),
fRawBitmap.bytesPerPixel());
// add the pixelref
SkPixelRef* pr = fRawBitmap.pixelRef();
if (pr) {
const char* uri = pr->getURI();
if (uri) {
str->appendf(" \"%s\"", uri);
}
}
// add the (optional) matrix
{
SkMatrix m;
if (this->getLocalMatrix(&m)) {
SkString info;
m.toDumpString(&info);
str->appendf(" %s", info.c_str());
}
}
str->appendf(" [%s %s]]",
gTileModeName[fState.fTileModeX],
gTileModeName[fState.fTileModeY]);
return true;
}
sk_sp<SkImage> SkImage::MakeFromBitmap(const SkBitmap& bm) {
SkPixelRef* pr = bm.pixelRef();
if (nullptr == pr) {
return nullptr;
}
#if SK_SUPPORT_GPU
if (GrTexture* tex = pr->getTexture()) {
SkAutoTUnref<GrTexture> unrefCopy;
if (!bm.isImmutable()) {
tex = GrDeepCopyTexture(tex, SkBudgeted::kNo);
if (nullptr == tex) {
return nullptr;
}
unrefCopy.reset(tex);
}
const SkImageInfo info = bm.info();
return sk_make_sp<SkImage_Gpu>(info.width(), info.height(), bm.getGenerationID(),
info.alphaType(), tex, sk_ref_sp(info.colorSpace()),
SkBudgeted::kNo);
}
#endif
// This will check for immutable (share or copy)
return SkMakeImageFromRasterBitmap(bm);
}
static SkData* encode_to_dct_data(size_t* pixelRefOffset, const SkBitmap& bitmap) {
if (gJpegQuality == -1) {
return NULL;
}
SkBitmap bm = bitmap;
#if defined(SK_BUILD_FOR_MAC)
// Workaround bug #1043 where bitmaps with referenced pixels cause
// CGImageDestinationFinalize to crash
SkBitmap copy;
bitmap.deepCopyTo(©, bitmap.config());
bm = copy;
#endif
SkPixelRef* pr = bm.pixelRef();
if (pr != NULL) {
SkData* data = pr->refEncodedData();
if (data != NULL) {
*pixelRefOffset = bm.pixelRefOffset();
return data;
}
}
*pixelRefOffset = 0;
return SkImageEncoder::EncodeData(bm,
SkImageEncoder::kJPEG_Type,
gJpegQuality);
}
bool SkBitmapProcState::lockBaseBitmap() {
SkPixelRef* pr = fOrigBitmap.pixelRef();
if (pr->isLocked() || !pr->implementsDecodeInto()) {
// fast-case, no need to look in our cache
fScaledBitmap = fOrigBitmap;
fScaledBitmap.lockPixels();
if (NULL == fScaledBitmap.getPixels()) {
return false;
}
} else {
if (!SkBitmapCache::Find(fOrigBitmap, 1, 1, &fScaledBitmap)) {
if (!get_locked_pixels(fOrigBitmap, 0, &fScaledBitmap)) {
return false;
}
// TODO: if fScaled comes back at a different width/height than fOrig,
// we need to update the matrix we are using to sample from this guy.
SkBitmapCache::Add(fOrigBitmap, 1, 1, fScaledBitmap);
}
}
fBitmap = &fScaledBitmap;
return true;
}
SkImage* SkImage::NewFromBitmap(const SkBitmap& bm) {
SkPixelRef* pr = bm.pixelRef();
if (nullptr == pr) {
return nullptr;
}
#if SK_SUPPORT_GPU
if (GrTexture* tex = pr->getTexture()) {
SkAutoTUnref<GrTexture> unrefCopy;
if (!bm.isImmutable()) {
const bool notBudgeted = false;
tex = GrDeepCopyTexture(tex, notBudgeted);
if (nullptr == tex) {
return nullptr;
}
unrefCopy.reset(tex);
}
const SkImageInfo info = bm.info();
return new SkImage_Gpu(info.width(), info.height(), bm.getGenerationID(), info.alphaType(),
tex, 0, SkSurface::kNo_Budgeted);
}
#endif
// This will check for immutable (share or copy)
return SkNewImageFromRasterBitmap(bm, nullptr);
}
void reportMemoryUsage(const SkBitmap* const& image, WTF::MemoryObjectInfo* memoryObjectInfo)
{
WTF::MemoryClassInfo info(memoryObjectInfo, image);
memoryObjectInfo->setClassName("SkBitmap");
SkPixelRef* pixelRef = image->pixelRef();
info.addMember(pixelRef, "pixelRef");
if (pixelRef)
info.addRawBuffer(pixelRef->pixels(), image->getSize(), "Pixels", "pixelRef");
}
bool SkBitmapProcState::lockBaseBitmap() {
AutoScaledCacheUnlocker unlocker(&fScaledCacheID);
SkPixelRef* pr = fOrigBitmap.pixelRef();
SkASSERT(NULL == fScaledCacheID);
if (pr->isLocked() || !pr->implementsDecodeInto()) {
// fast-case, no need to look in our cache
fScaledBitmap = fOrigBitmap;
fScaledBitmap.lockPixels();
if (NULL == fScaledBitmap.getPixels()) {
return false;
}
} else {
fScaledCacheID = SkScaledImageCache::FindAndLock(fOrigBitmap,
SK_Scalar1, SK_Scalar1,
&fScaledBitmap);
if (fScaledCacheID) {
fScaledBitmap.lockPixels();
if (!fScaledBitmap.getPixels()) {
fScaledBitmap.unlockPixels();
// found a purged entry (discardablememory?), release it
SkScaledImageCache::Unlock(fScaledCacheID);
fScaledCacheID = NULL;
// fall through to rebuild
}
}
if (NULL == fScaledCacheID) {
if (!get_locked_pixels(fOrigBitmap, 0, &fScaledBitmap)) {
return false;
}
// TODO: if fScaled comes back at a different width/height than fOrig,
// we need to update the matrix we are using to sample from this guy.
fScaledCacheID = SkScaledImageCache::AddAndLock(fOrigBitmap,
SK_Scalar1, SK_Scalar1,
fScaledBitmap);
if (!fScaledCacheID) {
fScaledBitmap.reset();
return false;
}
}
}
fBitmap = &fScaledBitmap;
unlocker.release();
return true;
}
static GrTexture* create_texture_from_yuv(GrContext* ctx, const SkBitmap& bm,
const GrSurfaceDesc& desc) {
// Subsets are not supported, the whole pixelRef is loaded when using YUV decoding
SkPixelRef* pixelRef = bm.pixelRef();
if ((nullptr == pixelRef) ||
(pixelRef->info().width() != bm.info().width()) ||
(pixelRef->info().height() != bm.info().height())) {
return nullptr;
}
PixelRef_GrYUVProvider provider(pixelRef);
return provider.refAsTexture(ctx, desc, !bm.isVolatile());
}
static bool get_locked_pixels(const SkBitmap& src, int pow2, SkBitmap* dst) {
SkPixelRef* pr = src.pixelRef();
if (pr && pr->decodeInto(pow2, dst)) {
return true;
}
/*
* If decodeInto() fails, it is possibe that we have an old subclass that
* does not, or cannot, implement that. In that case we fall back to the
* older protocol of having the pixelRef handle the caching for us.
*/
*dst = src;
dst->lockPixels();
return SkToBool(dst->getPixels());
}
void SkBinaryWriteBuffer::writeBitmap(const SkBitmap& bitmap) {
// Record the width and height. This way if readBitmap fails a dummy bitmap can be drawn at the
// right size.
this->writeInt(bitmap.width());
this->writeInt(bitmap.height());
// Record information about the bitmap in one of two ways, in order of priority:
// 1. If there is a function for encoding bitmaps, use it to write an encoded version of the
// bitmap. After writing a boolean value of false, signifying that a heap was not used, write
// the size of the encoded data. A non-zero size signifies that encoded data was written.
// 2. Call SkBitmap::flatten. After writing a boolean value of false, signifying that a heap was
// not used, write a zero to signify that the data was not encoded.
// Write a bool to indicate that we did not use an SkBitmapHeap. That feature is deprecated.
this->writeBool(false);
SkPixelRef* pixelRef = bitmap.pixelRef();
if (pixelRef) {
// see if the pixelref already has an encoded version
SkAutoDataUnref existingData(pixelRef->refEncodedData());
if (existingData.get() != nullptr) {
// Assumes that if the client did not set a serializer, they are
// happy to get the encoded data.
if (!fPixelSerializer || fPixelSerializer->useEncodedData(existingData->data(),
existingData->size())) {
write_encoded_bitmap(this, existingData, bitmap.pixelRefOrigin());
return;
}
}
// see if the caller wants to manually encode
SkAutoPixmapUnlock result;
if (fPixelSerializer && bitmap.requestLock(&result)) {
SkAutoDataUnref data(fPixelSerializer->encode(result.pixmap()));
if (data.get() != nullptr) {
// if we have to "encode" the bitmap, then we assume there is no
// offset to share, since we are effectively creating a new pixelref
write_encoded_bitmap(this, data, SkIPoint::Make(0, 0));
return;
}
}
}
this->writeUInt(0); // signal raw pixels
SkBitmap::WriteRawPixels(this, bitmap);
}
static void toString(const SkBitmap& bm, SkString* str) {
str->printf("bitmap:[%d %d] %s", bm.width(), bm.height(),
toString(bm.config()));
SkPixelRef* pr = bm.pixelRef();
if (NULL == pr) {
// show null or the explicit pixel address (rare)
str->appendf(" pixels:%p", bm.getPixels());
} else {
const char* uri = pr->getURI();
if (uri) {
str->appendf(" uri:\"%s\"", uri);
} else {
str->appendf(" pixelref:%p", pr);
}
}
}
static void Bitmap_reconfigure(JNIEnv* env, jobject clazz, jlong bitmapHandle,
jint width, jint height, jint configHandle, jint allocSize,
jboolean requestPremul) {
SkBitmap* bitmap = reinterpret_cast<SkBitmap*>(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;
}
SkPixelRef* ref = bitmap->pixelRef();
ref->ref();
SkAlphaType alphaType;
if (bitmap->colorType() != kRGB_565_SkColorType
&& bitmap->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->setInfo(SkImageInfo::Make(width, height, colorType, alphaType));
// FIXME: Skia thinks of an SkPixelRef as having a constant SkImageInfo (except for
// its alphatype), so it would make more sense from Skia's perspective to create a
// new SkPixelRef. That said, libhwui uses the pointer to the SkPixelRef as a key
// for its cache, so it won't realize this is the same Java Bitmap.
SkImageInfo& info = const_cast<SkImageInfo&>(ref->info());
// Use the updated from the SkBitmap, which may have corrected an invalid alphatype.
// (e.g. 565 non-opaque)
info = bitmap->info();
bitmap->setPixelRef(ref);
// notifyPixelsChanged will increment the generation ID even though the actual pixel data
// hasn't been touched. This signals the renderer that the bitmap (including width, height,
// colortype and alphatype) has changed.
ref->notifyPixelsChanged();
ref->unref();
}
static void jni_eglCreatePixmapSurface(JNIEnv *_env, jobject _this, jobject out_sur,
jobject display, jobject config, jobject native_pixmap,
jintArray attrib_list)
{
if (display == NULL || config == NULL || native_pixmap == NULL
|| !validAttribList(_env, attrib_list)) {
jniThrowException(_env, "java/lang/IllegalArgumentException", NULL);
return;
}
EGLDisplay dpy = getDisplay(_env, display);
EGLConfig cnf = getConfig(_env, config);
jint* base = 0;
SkBitmap const * nativeBitmap =
(SkBitmap const *)_env->GetIntField(native_pixmap,
gBitmap_NativeBitmapFieldID);
SkPixelRef* ref = nativeBitmap ? nativeBitmap->pixelRef() : 0;
if (ref == NULL) {
jniThrowException(_env, "java/lang/IllegalArgumentException", "Bitmap has no PixelRef");
return;
}
SkSafeRef(ref);
ref->lockPixels();
egl_native_pixmap_t pixmap;
pixmap.version = sizeof(pixmap);
pixmap.width = nativeBitmap->width();
pixmap.height = nativeBitmap->height();
pixmap.stride = nativeBitmap->rowBytes() / nativeBitmap->bytesPerPixel();
pixmap.format = convertPixelFormat(nativeBitmap->config());
pixmap.data = (uint8_t*)ref->pixels();
base = beginNativeAttribList(_env, attrib_list);
EGLSurface sur = eglCreatePixmapSurface(dpy, cnf, &pixmap, base);
endNativeAttributeList(_env, attrib_list, base);
if (sur != EGL_NO_SURFACE) {
_env->SetIntField(out_sur, gSurface_EGLSurfaceFieldID, (int)sur);
_env->SetIntField(out_sur, gSurface_NativePixelRefFieldID, (int)ref);
} else {
ref->unlockPixels();
SkSafeUnref(ref);
}
}
sk_sp<SkPixelRef> SkMallocPixelRef::MakeWithData(const SkImageInfo& info,
size_t rowBytes,
sk_sp<SkColorTable> ctable,
sk_sp<SkData> data) {
SkASSERT(data != nullptr);
if (!is_valid(info, ctable.get())) {
return nullptr;
}
if ((rowBytes < info.minRowBytes()) || (data->size() < info.getSafeSize(rowBytes))) {
return nullptr;
}
// must get this address before we call release
void* pixels = const_cast<void*>(data->data());
SkPixelRef* pr = new SkMallocPixelRef(info, pixels, rowBytes, std::move(ctable),
sk_data_releaseproc, data.release());
pr->setImmutable(); // since we were created with (immutable) data
return sk_sp<SkPixelRef>(pr);
}
static jboolean jni_eglDestroySurface(JNIEnv *_env, jobject _this, jobject display, jobject surface) {
if (display == NULL || surface == NULL) {
jniThrowException(_env, "java/lang/IllegalArgumentException", NULL);
return JNI_FALSE;
}
EGLDisplay dpy = getDisplay(_env, display);
EGLSurface sur = getSurface(_env, surface);
if (sur) {
SkPixelRef* ref = (SkPixelRef*)(_env->GetIntField(surface,
gSurface_NativePixelRefFieldID));
if (ref) {
ref->unlockPixels();
SkSafeUnref(ref);
}
}
return eglDestroySurface(dpy, sur);
}
static void Bitmap_reconfigure(JNIEnv* env, jobject clazz, jlong bitmapHandle,
jint width, jint height, jint configHandle, jint allocSize) {
SkBitmap* bitmap = reinterpret_cast<SkBitmap*>(bitmapHandle);
SkBitmap::Config config = static_cast<SkBitmap::Config>(configHandle);
if (width * height * SkBitmap::ComputeBytesPerPixel(config) > 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;
}
SkPixelRef* ref = bitmap->pixelRef();
SkSafeRef(ref);
bitmap->setConfig(config, width, height);
bitmap->setPixelRef(ref);
// notifyPixelsChanged will increment the generation ID even though the actual pixel data
// hasn't been touched. This signals the renderer that the bitmap (including width, height,
// and config) has changed.
ref->notifyPixelsChanged();
SkSafeUnref(ref);
}
SkBitmapRef* ImageSource::createFrameAtIndex(size_t index)
{
#ifdef ANDROID_ANIMATED_GIF
if (m_decoder.m_gifDecoder) {
ImageFrame* buffer =
m_decoder.m_gifDecoder->frameBufferAtIndex(index);
if (!buffer || buffer->status() == ImageFrame::FrameEmpty)
return 0;
SkBitmap& bitmap = buffer->bitmap();
SkPixelRef* pixelRef = bitmap.pixelRef();
if (pixelRef)
pixelRef->setURI(m_decoder.m_url);
return new SkBitmapRef(bitmap);
}
#else
SkASSERT(index == 0);
#endif
SkASSERT(m_decoder.m_image != NULL);
m_decoder.m_image->ref();
return m_decoder.m_image;
}
void AssetAtlas::createEntries(Caches& caches, int64_t* map, int count) {
const float width = float(mTexture->width());
const float height = float(mTexture->height());
for (int i = 0; i < count; ) {
SkPixelRef* pixelRef = reinterpret_cast<SkPixelRef*>(map[i++]);
// NOTE: We're converting from 64 bit signed values to 32 bit
// signed values. This is guaranteed to be safe because the "x"
// and "y" coordinate values are guaranteed to be representable
// with 32 bits. The array is 64 bits wide so that it can carry
// pointers on 64 bit architectures.
const int x = static_cast<int>(map[i++]);
const int y = static_cast<int>(map[i++]);
// Bitmaps should never be null, we're just extra paranoid
if (!pixelRef) continue;
const UvMapper mapper(
x / width, (x + pixelRef->info().width()) / width,
y / height, (y + pixelRef->info().height()) / height);
Texture* texture = new DelegateTexture(caches, mTexture);
texture->blend = !SkAlphaTypeIsOpaque(pixelRef->info().alphaType());
texture->wrap(mTexture->id(), pixelRef->info().width(),
pixelRef->info().height(), mTexture->format());
std::unique_ptr<Entry> entry(new Entry(pixelRef, texture, mapper, *this));
texture->uvMapper = &entry->uvMapper;
mEntries.emplace(entry->pixelRef, std::move(entry));
}
}
void SkPixelRef::cloneGenID(const SkPixelRef& that) {
// This is subtle. We must call that.getGenerationID() to make sure its genID isn't 0.
uint32_t genID = that.getGenerationID();
// Neither ID is unique any more.
// (These & ~1u are actually redundant. that.getGenerationID() just did it for us.)
this->fTaggedGenID.store(genID & ~1u);
that. fTaggedGenID.store(genID & ~1u);
// This method isn't threadsafe, so these asserts should be fine.
SkASSERT(!this->genIDIsUnique());
SkASSERT(!that. genIDIsUnique());
}
static GrTexture* load_yuv_texture(GrContext* ctx, const GrUniqueKey& optionalKey,
const SkBitmap& bm, const GrSurfaceDesc& desc) {
// Subsets are not supported, the whole pixelRef is loaded when using YUV decoding
SkPixelRef* pixelRef = bm.pixelRef();
if ((nullptr == pixelRef) ||
(pixelRef->info().width() != bm.info().width()) ||
(pixelRef->info().height() != bm.info().height())) {
return nullptr;
}
const bool useCache = optionalKey.isValid();
PixelRef_GrYUVProvider provider(pixelRef);
GrTexture* texture = provider.refAsTexture(ctx, desc, useCache);
if (!texture) {
return nullptr;
}
if (useCache) {
BitmapInvalidator* listener = new BitmapInvalidator(optionalKey);
pixelRef->addGenIDChangeListener(listener);
ctx->textureProvider()->assignUniqueKeyToTexture(optionalKey, texture);
}
return texture;
}
bool onGetYUVPlanes(SkISize sizes[3], void* planes[3], size_t rowBytes[3],
SkYUVColorSpace* space) override {
return fPR->getYUV8Planes(sizes, planes, rowBytes, space);
}
void ImageSource::setData(SharedBuffer* data, bool allDataReceived)
{
#ifdef ANDROID_ANIMATED_GIF
// This is only necessary if we allow ourselves to partially decode GIF
if (m_decoder.m_gifDecoder
&& !m_decoder.m_gifDecoder->failed()) {
m_decoder.m_gifDecoder->setData(data, allDataReceived);
return;
}
#endif
if (NULL == m_decoder.m_image
#ifdef ANDROID_ANIMATED_GIF
&& !m_decoder.m_gifDecoder
#endif
) {
SkBitmap tmp;
SkMemoryStream stream(data->data(), data->size(), false);
SkImageDecoder* codec = SkImageDecoder::Factory(&stream);
SkAutoTDelete<SkImageDecoder> ad(codec);
if (!codec || !codec->decode(&stream, &tmp, SkBitmap::kNo_Config,
SkImageDecoder::kDecodeBounds_Mode)) {
return;
}
int origW = tmp.width();
int origH = tmp.height();
#ifdef ANDROID_ANIMATED_GIF
// First, check to see if this is an animated GIF
const Vector<char>& buffer = data->buffer();
const char* contents = buffer.data();
if (buffer.size() > 3 && strncmp(contents, "GIF8", 4) == 0 &&
should_use_animated_gif(origW, origH)) {
// This means we are looking at a GIF, so create special
// GIF Decoder
// Need to wait for all data received if we are assigning an
// allocator (which we are not at the moment).
if (!m_decoder.m_gifDecoder /*&& allDataReceived*/)
m_decoder.m_gifDecoder = new GIFImageDecoder();
if (!m_decoder.m_gifDecoder->failed())
m_decoder.m_gifDecoder->setData(data, allDataReceived);
return;
}
#endif
int sampleSize = computeSampleSize(tmp);
if (sampleSize > 1) {
codec->setSampleSize(sampleSize);
stream.rewind();
if (!codec->decode(&stream, &tmp, SkBitmap::kNo_Config,
SkImageDecoder::kDecodeBounds_Mode)) {
return;
}
}
m_decoder.m_image = new PrivateAndroidImageSourceRec(tmp, origW, origH,
sampleSize);
// SkDebugf("----- started: [%d %d] %s\n", origW, origH, m_decoder.m_url.c_str());
}
PrivateAndroidImageSourceRec* decoder = m_decoder.m_image;
if (allDataReceived && !decoder->fAllDataReceived) {
decoder->fAllDataReceived = true;
SkBitmap* bm = &decoder->bitmap();
SkPixelRef* ref = convertToRLE(bm, data->data(), data->size());
if (ref) {
bm->setPixelRef(ref)->unref();
} else {
BitmapAllocatorAndroid alloc(data, decoder->fSampleSize);
if (!alloc.allocPixelRef(bm, NULL)) {
return;
}
ref = bm->pixelRef();
}
// we promise to never change the pixels (makes picture recording fast)
ref->setImmutable();
// give it the URL if we have one
ref->setURI(m_decoder.m_url);
}
}
static GrTexture* load_yuv_texture(GrContext* ctx, const GrUniqueKey& optionalKey,
const SkBitmap& bm, const GrSurfaceDesc& desc) {
// Subsets are not supported, the whole pixelRef is loaded when using YUV decoding
SkPixelRef* pixelRef = bm.pixelRef();
if ((NULL == pixelRef) ||
(pixelRef->info().width() != bm.info().width()) ||
(pixelRef->info().height() != bm.info().height())) {
return NULL;
}
const bool useCache = optionalKey.isValid();
SkYUVPlanesCache::Info yuvInfo;
SkAutoTUnref<SkCachedData> cachedData;
SkAutoMalloc storage;
if (useCache) {
cachedData.reset(SkYUVPlanesCache::FindAndRef(pixelRef->getGenerationID(), &yuvInfo));
}
void* planes[3];
if (cachedData.get()) {
planes[0] = (void*)cachedData->data();
planes[1] = (uint8_t*)planes[0] + yuvInfo.fSizeInMemory[0];
planes[2] = (uint8_t*)planes[1] + yuvInfo.fSizeInMemory[1];
} else {
// Fetch yuv plane sizes for memory allocation. Here, width and height can be
// rounded up to JPEG block size and be larger than the image's width and height.
if (!pixelRef->getYUV8Planes(yuvInfo.fSize, NULL, NULL, NULL)) {
return NULL;
}
// Allocate the memory for YUV
size_t totalSize(0);
for (int i = 0; i < 3; ++i) {
yuvInfo.fRowBytes[i] = yuvInfo.fSize[i].fWidth;
yuvInfo.fSizeInMemory[i] = yuvInfo.fRowBytes[i] * yuvInfo.fSize[i].fHeight;
totalSize += yuvInfo.fSizeInMemory[i];
}
if (useCache) {
cachedData.reset(SkResourceCache::NewCachedData(totalSize));
planes[0] = cachedData->writable_data();
} else {
storage.reset(totalSize);
planes[0] = storage.get();
}
planes[1] = (uint8_t*)planes[0] + yuvInfo.fSizeInMemory[0];
planes[2] = (uint8_t*)planes[1] + yuvInfo.fSizeInMemory[1];
// Get the YUV planes and update plane sizes to actual image size
if (!pixelRef->getYUV8Planes(yuvInfo.fSize, planes, yuvInfo.fRowBytes,
&yuvInfo.fColorSpace)) {
return NULL;
}
if (useCache) {
// Decoding is done, cache the resulting YUV planes
SkYUVPlanesCache::Add(pixelRef->getGenerationID(), cachedData, &yuvInfo);
}
}
GrSurfaceDesc yuvDesc;
yuvDesc.fConfig = kAlpha_8_GrPixelConfig;
SkAutoTUnref<GrTexture> yuvTextures[3];
for (int i = 0; i < 3; ++i) {
yuvDesc.fWidth = yuvInfo.fSize[i].fWidth;
yuvDesc.fHeight = yuvInfo.fSize[i].fHeight;
bool needsExactTexture =
(yuvDesc.fWidth != yuvInfo.fSize[0].fWidth) ||
(yuvDesc.fHeight != yuvInfo.fSize[0].fHeight);
if (needsExactTexture) {
yuvTextures[i].reset(ctx->textureProvider()->createTexture(yuvDesc, true));
} else {
yuvTextures[i].reset(ctx->textureProvider()->createApproxTexture(yuvDesc));
}
if (!yuvTextures[i] ||
!yuvTextures[i]->writePixels(0, 0, yuvDesc.fWidth, yuvDesc.fHeight,
yuvDesc.fConfig, planes[i], yuvInfo.fRowBytes[i])) {
return NULL;
}
}
GrSurfaceDesc rtDesc = desc;
rtDesc.fFlags = rtDesc.fFlags | kRenderTarget_GrSurfaceFlag;
GrTexture* result = create_texture_for_bmp(ctx, optionalKey, rtDesc, pixelRef, NULL, 0);
if (!result) {
return NULL;
}
GrRenderTarget* renderTarget = result->asRenderTarget();
SkASSERT(renderTarget);
GrPaint paint;
SkAutoTUnref<GrFragmentProcessor>
yuvToRgbProcessor(GrYUVtoRGBEffect::Create(paint.getProcessorDataManager(), yuvTextures[0],
yuvTextures[1], yuvTextures[2],
yuvInfo.fSize, yuvInfo.fColorSpace));
paint.addColorProcessor(yuvToRgbProcessor);
SkRect r = SkRect::MakeWH(SkIntToScalar(yuvInfo.fSize[0].fWidth),
SkIntToScalar(yuvInfo.fSize[0].fHeight));
GrDrawContext* drawContext = ctx->drawContext();
if (!drawContext) {
return NULL;
}
drawContext->drawRect(renderTarget, GrClip::WideOpen(), paint, SkMatrix::I(), r);
return result;
}
// since we "may" create a purgeable imageref, we require the stream be ref'able
// i.e. dynamically allocated, since its lifetime may exceed the current stack
// frame.
static jobject doDecode(JNIEnv* env, SkStream* stream, jobject padding,
jobject options, bool allowPurgeable, bool forcePurgeable = false,
bool applyScale = false, float scale = 1.0f) {
int sampleSize = 1;
SkImageDecoder::Mode mode = SkImageDecoder::kDecodePixels_Mode;
SkBitmap::Config prefConfig = SkBitmap::kARGB_8888_Config;
bool doDither = true;
bool isMutable = false;
bool willScale = applyScale && scale != 1.0f;
bool isPurgeable = !willScale &&
(forcePurgeable || (allowPurgeable && optionsPurgeable(env, options)));
bool preferQualityOverSpeed = false;
jobject javaBitmap = NULL;
if (options != NULL) {
sampleSize = env->GetIntField(options, gOptions_sampleSizeFieldID);
if (optionsJustBounds(env, options)) {
mode = SkImageDecoder::kDecodeBounds_Mode;
}
// initialize these, in case we fail later on
env->SetIntField(options, gOptions_widthFieldID, -1);
env->SetIntField(options, gOptions_heightFieldID, -1);
env->SetObjectField(options, gOptions_mimeFieldID, 0);
jobject jconfig = env->GetObjectField(options, gOptions_configFieldID);
prefConfig = GraphicsJNI::getNativeBitmapConfig(env, jconfig);
isMutable = env->GetBooleanField(options, gOptions_mutableFieldID);
doDither = env->GetBooleanField(options, gOptions_ditherFieldID);
preferQualityOverSpeed = env->GetBooleanField(options,
gOptions_preferQualityOverSpeedFieldID);
javaBitmap = env->GetObjectField(options, gOptions_bitmapFieldID);
}
if (willScale && javaBitmap != NULL) {
return nullObjectReturn("Cannot pre-scale a reused bitmap");
}
SkImageDecoder* decoder = SkImageDecoder::Factory(stream);
if (decoder == NULL) {
return nullObjectReturn("SkImageDecoder::Factory returned null");
}
decoder->setSampleSize(sampleSize);
decoder->setDitherImage(doDither);
decoder->setPreferQualityOverSpeed(preferQualityOverSpeed);
NinePatchPeeker peeker(decoder);
JavaPixelAllocator javaAllocator(env);
SkBitmap* bitmap;
if (javaBitmap == NULL) {
bitmap = new SkBitmap;
} else {
if (sampleSize != 1) {
return nullObjectReturn("SkImageDecoder: Cannot reuse bitmap with sampleSize != 1");
}
bitmap = (SkBitmap*) env->GetIntField(javaBitmap, gBitmap_nativeBitmapFieldID);
// config of supplied bitmap overrules config set in options
prefConfig = bitmap->getConfig();
}
SkAutoTDelete<SkImageDecoder> add(decoder);
SkAutoTDelete<SkBitmap> adb(bitmap, javaBitmap == NULL);
decoder->setPeeker(&peeker);
if (!isPurgeable) {
decoder->setAllocator(&javaAllocator);
}
AutoDecoderCancel adc(options, decoder);
// To fix the race condition in case "requestCancelDecode"
// happens earlier than AutoDecoderCancel object is added
// to the gAutoDecoderCancelMutex linked list.
if (options != NULL && env->GetBooleanField(options, gOptions_mCancelID)) {
return nullObjectReturn("gOptions_mCancelID");
}
SkImageDecoder::Mode decodeMode = mode;
if (isPurgeable) {
decodeMode = SkImageDecoder::kDecodeBounds_Mode;
}
SkBitmap* decoded;
if (willScale) {
decoded = new SkBitmap;
} else {
decoded = bitmap;
}
SkAutoTDelete<SkBitmap> adb2(willScale ? decoded : NULL);
if (!decoder->decode(stream, decoded, prefConfig, decodeMode, javaBitmap != NULL)) {
return nullObjectReturn("decoder->decode returned false");
}
int scaledWidth = decoded->width();
int scaledHeight = decoded->height();
if (willScale && mode != SkImageDecoder::kDecodeBounds_Mode) {
scaledWidth = int(scaledWidth * scale + 0.5f);
scaledHeight = int(scaledHeight * scale + 0.5f);
}
// update options (if any)
if (options != NULL) {
env->SetIntField(options, gOptions_widthFieldID, scaledWidth);
env->SetIntField(options, gOptions_heightFieldID, scaledHeight);
env->SetObjectField(options, gOptions_mimeFieldID,
getMimeTypeString(env, decoder->getFormat()));
}
// if we're in justBounds mode, return now (skip the java bitmap)
if (mode == SkImageDecoder::kDecodeBounds_Mode) {
return NULL;
}
jbyteArray ninePatchChunk = NULL;
if (peeker.fPatch != NULL) {
if (willScale) {
scaleNinePatchChunk(peeker.fPatch, scale);
}
size_t ninePatchArraySize = peeker.fPatch->serializedSize();
ninePatchChunk = env->NewByteArray(ninePatchArraySize);
if (ninePatchChunk == NULL) {
return nullObjectReturn("ninePatchChunk == null");
}
jbyte* array = (jbyte*) env->GetPrimitiveArrayCritical(ninePatchChunk, NULL);
if (array == NULL) {
return nullObjectReturn("primitive array == null");
}
peeker.fPatch->serialize(array);
env->ReleasePrimitiveArrayCritical(ninePatchChunk, array, 0);
}
jintArray layoutBounds = NULL;
if (peeker.fLayoutBounds != NULL) {
layoutBounds = env->NewIntArray(4);
if (layoutBounds == NULL) {
return nullObjectReturn("layoutBounds == null");
}
jint scaledBounds[4];
if (willScale) {
for (int i=0; i<4; i++) {
scaledBounds[i] = (jint)((((jint*)peeker.fLayoutBounds)[i]*scale) + .5f);
}
} else {
memcpy(scaledBounds, (jint*)peeker.fLayoutBounds, sizeof(scaledBounds));
}
env->SetIntArrayRegion(layoutBounds, 0, 4, scaledBounds);
if (javaBitmap != NULL) {
env->SetObjectField(javaBitmap, gBitmap_layoutBoundsFieldID, layoutBounds);
}
}
if (willScale) {
// This is weird so let me explain: we could use the scale parameter
// directly, but for historical reasons this is how the corresponding
// Dalvik code has always behaved. We simply recreate the behavior here.
// The result is slightly different from simply using scale because of
// the 0.5f rounding bias applied when computing the target image size
const float sx = scaledWidth / float(decoded->width());
const float sy = scaledHeight / float(decoded->height());
SkBitmap::Config config = decoded->config();
switch (config) {
case SkBitmap::kNo_Config:
case SkBitmap::kIndex8_Config:
case SkBitmap::kRLE_Index8_Config:
config = SkBitmap::kARGB_8888_Config;
break;
default:
break;
}
bitmap->setConfig(config, scaledWidth, scaledHeight);
bitmap->setIsOpaque(decoded->isOpaque());
if (!bitmap->allocPixels(&javaAllocator, NULL)) {
return nullObjectReturn("allocation failed for scaled bitmap");
}
bitmap->eraseColor(0);
SkPaint paint;
paint.setFilterBitmap(true);
SkCanvas canvas(*bitmap);
canvas.scale(sx, sy);
canvas.drawBitmap(*decoded, 0.0f, 0.0f, &paint);
// Save off the unscaled version of bitmap to be used in later
// transformations if it would reduce memory pressure. Only do
// so if it is being upscaled more than 50%, is bigger than
// 256x256, and not too big to be keeping a copy of (<1MB).
const int numUnscaledPixels = decoded->width() * decoded->height();
if (sx > 1.5 && numUnscaledPixels > 65536 && numUnscaledPixels < 262144) {
bitmap->setUnscaledBitmap(decoded);
adb2.detach(); //responsibility for freeing decoded's memory is
//transferred to bitmap's destructor
}
}
if (padding) {
if (peeker.fPatch != NULL) {
GraphicsJNI::set_jrect(env, padding,
peeker.fPatch->paddingLeft, peeker.fPatch->paddingTop,
peeker.fPatch->paddingRight, peeker.fPatch->paddingBottom);
} else {
GraphicsJNI::set_jrect(env, padding, -1, -1, -1, -1);
}
}
SkPixelRef* pr;
if (isPurgeable) {
pr = installPixelRef(bitmap, stream, sampleSize, doDither);
} else {
// if we get here, we're in kDecodePixels_Mode and will therefore
// already have a pixelref installed.
pr = bitmap->pixelRef();
}
if (pr == NULL) {
return nullObjectReturn("Got null SkPixelRef");
}
if (!isMutable) {
// promise we will never change our pixels (great for sharing and pictures)
pr->setImmutable();
}
// detach bitmap from its autodeleter, since we want to own it now
adb.detach();
if (javaBitmap != NULL) {
// If a java bitmap was passed in for reuse, pass it back
return javaBitmap;
}
// now create the java bitmap
return GraphicsJNI::createBitmap(env, bitmap, javaAllocator.getStorageObj(),
isMutable, ninePatchChunk, layoutBounds, -1);
}
uint32_t onGetID() override { return fPR->getGenerationID(); }
bool onGetYUVSizes(SkISize sizes[3]) override {
return fPR->getYUV8Planes(sizes, nullptr, nullptr, nullptr);
}
void ImageSource::setData(SharedBuffer* data, bool allDataReceived)
{
#ifdef ANDROID_ANIMATED_GIF
// This is only necessary if we allow ourselves to partially decode GIF
bool disabledAnimatedGif = false;
if (m_decoder.m_gifDecoder
&& !m_decoder.m_gifDecoder->failed()) {
m_decoder.m_gifDecoder->setData(data, allDataReceived);
if (!allDataReceived || m_decoder.m_gifDecoder->frameCount() != 1)
return;
disabledAnimatedGif = true;
delete m_decoder.m_gifDecoder;
m_decoder.m_gifDecoder = 0;
}
#endif
if (NULL == m_decoder.m_image
#ifdef ANDROID_ANIMATED_GIF
&& !m_decoder.m_gifDecoder
#endif
) {
SkBitmap tmp;
SkMemoryStream stream(data->data(), data->size(), false);
SkImageDecoder* codec = SkImageDecoder::Factory(&stream);
if (!codec)
return;
SkAutoTDelete<SkImageDecoder> ad(codec);
// FOR KITKAT MR2 INTEGRATION
//codec->setPrefConfigTable(gPrefConfigTable);
SkImageDecoder::PrefConfigTable configTable;
configTable.fPrefFor_8Index_NoAlpha_src = gPrefConfigTable[0];
configTable.fPrefFor_8Index_YesAlpha_src = gPrefConfigTable[1];
configTable.fPrefFor_8Gray_src = SkBitmap::kNo_Config;
configTable.fPrefFor_8bpc_NoAlpha_src = gPrefConfigTable[4];
configTable.fPrefFor_8bpc_YesAlpha_src = gPrefConfigTable[5];
codec->setPrefConfigTable(configTable);
// FOR KITKAT MR2 INTEGRATION
if (!codec->decode(&stream, &tmp, SkImageDecoder::kDecodeBounds_Mode))
return;
int origW = tmp.width();
int origH = tmp.height();
#ifdef ANDROID_ANIMATED_GIF
// First, check to see if this is an animated GIF
const char* contents = data->data();
if (data->size() > 3 && strncmp(contents, "GIF8", 4) == 0
&& should_use_animated_gif(origW, origH)
&& !disabledAnimatedGif) {
// This means we are looking at a GIF, so create special
// GIF Decoder
// Need to wait for all data received if we are assigning an
// allocator (which we are not at the moment).
if (!m_decoder.m_gifDecoder /*&& allDataReceived*/)
m_decoder.m_gifDecoder = new GIFImageDecoder(m_alphaOption, m_gammaAndColorProfileOption);
int frameCount = 0;
if (!m_decoder.m_gifDecoder->failed()) {
m_decoder.m_gifDecoder->setData(data, allDataReceived);
if (!allDataReceived)
return;
frameCount = m_decoder.m_gifDecoder->frameCount();
}
if (frameCount != 1)
return;
delete m_decoder.m_gifDecoder;
m_decoder.m_gifDecoder = 0;
}
#endif
int sampleSize = computeSampleSize(tmp);
if (sampleSize > 1) {
codec->setSampleSize(sampleSize);
stream.rewind();
if (!codec->decode(&stream, &tmp,
SkImageDecoder::kDecodeBounds_Mode)) {
return;
}
}
m_decoder.m_image = new PrivateAndroidImageSourceRec(tmp, origW, origH,
sampleSize);
// SkDebugf("----- started: [%d %d] %s\n", origW, origH, m_decoder.m_url.c_str());
}
PrivateAndroidImageSourceRec* decoder = m_decoder.m_image;
if (allDataReceived && decoder && !decoder->fAllDataReceived) {
decoder->fAllDataReceived = true;
SkBitmap* bm = &decoder->bitmap();
// 4.2 Merge BEGIN <<
//Following code removed in 4.2
// SkPixelRef* ref = convertToRLE(bm, data->data(), data->size()); //4.2 Merge : removed in 4.2
// if (ref) {
// bm->setPixelRef(ref)->unref();
// } else {
// 4.2 Merge END >>
BitmapAllocatorAndroid alloc(data, decoder->fSampleSize);
if (!alloc.allocPixelRef(bm, NULL)) {
return;
}
SkPixelRef* ref = bm->pixelRef();//4.2 Merge
// }//4.3 Merge : removed in 4.2
// we promise to never change the pixels (makes picture recording fast)
ref->setImmutable();
// give it the URL if we have one
ref->setURI(m_decoder.m_url);
}
}
// since we "may" create a purgeable imageref, we require the stream be ref'able
// i.e. dynamically allocated, since its lifetime may exceed the current stack
// frame.
static jobject doDecode(JNIEnv* env, SkStream* stream, jobject padding,
jobject options, bool allowPurgeable,
bool forcePurgeable = false) {
int sampleSize = 1;
SkImageDecoder::Mode mode = SkImageDecoder::kDecodePixels_Mode;
SkBitmap::Config prefConfig = SkBitmap::kNo_Config;
bool doDither = true;
bool isPurgeable = forcePurgeable ||
(allowPurgeable && optionsPurgeable(env, options));
bool reportSizeToVM = optionsReportSizeToVM(env, options);
bool preferQualityOverSpeed = false;
if (NULL != options) {
sampleSize = env->GetIntField(options, gOptions_sampleSizeFieldID);
if (env->GetBooleanField(options, gOptions_justBoundsFieldID)) {
mode = SkImageDecoder::kDecodeBounds_Mode;
}
// initialize these, in case we fail later on
env->SetIntField(options, gOptions_widthFieldID, -1);
env->SetIntField(options, gOptions_heightFieldID, -1);
env->SetObjectField(options, gOptions_mimeFieldID, 0);
jobject jconfig = env->GetObjectField(options, gOptions_configFieldID);
prefConfig = GraphicsJNI::getNativeBitmapConfig(env, jconfig);
doDither = env->GetBooleanField(options, gOptions_ditherFieldID);
preferQualityOverSpeed = env->GetBooleanField(options,
gOptions_preferQualityOverSpeedFieldID);
}
SkImageDecoder* decoder = SkImageDecoder::Factory(stream);
if (NULL == decoder) {
return nullObjectReturn("SkImageDecoder::Factory returned null");
}
decoder->setSampleSize(sampleSize);
decoder->setDitherImage(doDither);
decoder->setPreferQualityOverSpeed(preferQualityOverSpeed);
NinePatchPeeker peeker(decoder);
JavaPixelAllocator javaAllocator(env, reportSizeToVM);
SkBitmap* bitmap = new SkBitmap;
Res_png_9patch dummy9Patch;
SkAutoTDelete<SkImageDecoder> add(decoder);
SkAutoTDelete<SkBitmap> adb(bitmap);
decoder->setPeeker(&peeker);
if (!isPurgeable) {
decoder->setAllocator(&javaAllocator);
}
AutoDecoderCancel adc(options, decoder);
// To fix the race condition in case "requestCancelDecode"
// happens earlier than AutoDecoderCancel object is added
// to the gAutoDecoderCancelMutex linked list.
if (NULL != options && env->GetBooleanField(options, gOptions_mCancelID)) {
return nullObjectReturn("gOptions_mCancelID");;
}
SkImageDecoder::Mode decodeMode = mode;
if (isPurgeable) {
decodeMode = SkImageDecoder::kDecodeBounds_Mode;
}
if (!decoder->decode(stream, bitmap, prefConfig, decodeMode)) {
return nullObjectReturn("decoder->decode returned false");
}
// update options (if any)
if (NULL != options) {
env->SetIntField(options, gOptions_widthFieldID, bitmap->width());
env->SetIntField(options, gOptions_heightFieldID, bitmap->height());
// TODO: set the mimeType field with the data from the codec.
// but how to reuse a set of strings, rather than allocating new one
// each time?
env->SetObjectField(options, gOptions_mimeFieldID,
getMimeTypeString(env, decoder->getFormat()));
}
// if we're in justBounds mode, return now (skip the java bitmap)
if (SkImageDecoder::kDecodeBounds_Mode == mode) {
return NULL;
}
jbyteArray ninePatchChunk = NULL;
if (peeker.fPatchIsValid) {
size_t ninePatchArraySize = peeker.fPatch->serializedSize();
ninePatchChunk = env->NewByteArray(ninePatchArraySize);
if (NULL == ninePatchChunk) {
return nullObjectReturn("ninePatchChunk == null");
}
jbyte* array = (jbyte*)env->GetPrimitiveArrayCritical(ninePatchChunk,
NULL);
if (NULL == array) {
return nullObjectReturn("primitive array == null");
}
peeker.fPatch->serialize(array);
env->ReleasePrimitiveArrayCritical(ninePatchChunk, array, 0);
}
// detach bitmap from its autotdeleter, since we want to own it now
adb.detach();
if (padding) {
if (peeker.fPatchIsValid) {
GraphicsJNI::set_jrect(env, padding,
peeker.fPatch->paddingLeft,
peeker.fPatch->paddingTop,
peeker.fPatch->paddingRight,
peeker.fPatch->paddingBottom);
} else {
GraphicsJNI::set_jrect(env, padding, -1, -1, -1, -1);
}
}
SkPixelRef* pr;
if (isPurgeable) {
pr = installPixelRef(bitmap, stream, sampleSize, doDither);
} else {
// if we get here, we're in kDecodePixels_Mode and will therefore
// already have a pixelref installed.
pr = bitmap->pixelRef();
}
// promise we will never change our pixels (great for sharing and pictures)
pr->setImmutable();
// now create the java bitmap
return GraphicsJNI::createBitmap(env, bitmap, false, ninePatchChunk);
}
BitmapGlue*
BitmapFactoryGlue::doDecode(SkStream* stream, Options& options,
bool allowPurgeable, bool forcePurgeable)
{
int sampleSize = 1;
SkImageDecoder::Mode mode = SkImageDecoder::kDecodePixels_Mode;
SkBitmap::Config prefConfig = SkBitmap::kARGB_8888_Config;
bool doDither = true;
bool isMutable = false;
bool isPurgeable = forcePurgeable || (allowPurgeable && options.isPurgeable);
BitmapGlue* javaBitmap = NULL;
sampleSize = options.sampleSize;
if (options.justDecodeBounds)
mode = SkImageDecoder::kDecodeBounds_Mode;
// initialize these, in case we fail later on
options.width = -1;
options.height = -1;
prefConfig = options.config;
isMutable = options.isMutable;
doDither = options.doDither;
javaBitmap = options.bitmap;
SkImageDecoder* decoder = SkImageDecoder::Factory(stream);
if (NULL == decoder)
return NULL;
decoder->setSampleSize(sampleSize);
decoder->setDitherImage(doDither);
BitmapGlue* bitmap;
if (javaBitmap == NULL) {
bitmap = new BitmapGlue;
} else {
if (sampleSize != 1) {
return NULL;
}
bitmap = javaBitmap;
// config of supplied bitmap overrules config set in options
prefConfig = bitmap->getConfig();
}
SkAutoTDelete<SkImageDecoder> add(decoder);
SkAutoTDelete<SkBitmap> adb(bitmap, (javaBitmap == NULL));
SkImageDecoder::Mode decodeMode = mode;
if (isPurgeable) {
decodeMode = SkImageDecoder::kDecodeBounds_Mode;
}
if (!decoder->decode(stream, bitmap, prefConfig, decodeMode))
return NULL;
// update options (if any)
options.width = bitmap->width();
options.height = bitmap->height();
// if we're in justBounds mode, return now (skip the java bitmap)
if (SkImageDecoder::kDecodeBounds_Mode == mode) {
return NULL;
}
// detach bitmap from its autodeleter, since we want to own it now
adb.detach();
SkPixelRef* pr;
if (isPurgeable) {
pr = installPixelRef(bitmap, stream, sampleSize, doDither);
} else {
// if we get here, we're in kDecodePixels_Mode and will therefore
// already have a pixelref installed.
pr = bitmap->pixelRef();
}
if (!isMutable) {
// promise we will never change our pixels (great for sharing and pictures)
pr->setImmutable();
}
if (javaBitmap != NULL) {
// If a java bitmap was passed in for reuse, pass it back
return javaBitmap;
}
// now create the java bitmap
return bitmap;
}
// since we "may" create a purgeable imageref, we require the stream be ref'able
// i.e. dynamically allocated, since its lifetime may exceed the current stack
// frame.
static jobject doDecode(JNIEnv* env, SkStreamRewindable* stream, jobject padding,
jobject options, bool allowPurgeable, bool forcePurgeable = false) {
int sampleSize = 1;
SkImageDecoder::Mode mode = SkImageDecoder::kDecodePixels_Mode;
SkBitmap::Config prefConfig = SkBitmap::kARGB_8888_Config;
bool doDither = true;
bool isMutable = false;
float scale = 1.0f;
bool isPurgeable = forcePurgeable || (allowPurgeable && optionsPurgeable(env, options));
bool preferQualityOverSpeed = false;
bool requireUnpremultiplied = false;
jobject javaBitmap = NULL;
if (options != NULL) {
sampleSize = env->GetIntField(options, gOptions_sampleSizeFieldID);
if (optionsJustBounds(env, options)) {
mode = SkImageDecoder::kDecodeBounds_Mode;
}
// initialize these, in case we fail later on
env->SetIntField(options, gOptions_widthFieldID, -1);
env->SetIntField(options, gOptions_heightFieldID, -1);
env->SetObjectField(options, gOptions_mimeFieldID, 0);
jobject jconfig = env->GetObjectField(options, gOptions_configFieldID);
prefConfig = GraphicsJNI::getNativeBitmapConfig(env, jconfig);
isMutable = env->GetBooleanField(options, gOptions_mutableFieldID);
doDither = env->GetBooleanField(options, gOptions_ditherFieldID);
preferQualityOverSpeed = env->GetBooleanField(options,
gOptions_preferQualityOverSpeedFieldID);
requireUnpremultiplied = !env->GetBooleanField(options, gOptions_premultipliedFieldID);
javaBitmap = env->GetObjectField(options, gOptions_bitmapFieldID);
if (env->GetBooleanField(options, gOptions_scaledFieldID)) {
const int density = env->GetIntField(options, gOptions_densityFieldID);
const int targetDensity = env->GetIntField(options, gOptions_targetDensityFieldID);
const int screenDensity = env->GetIntField(options, gOptions_screenDensityFieldID);
if (density != 0 && targetDensity != 0 && density != screenDensity) {
scale = (float) targetDensity / density;
}
}
}
const bool willScale = scale != 1.0f;
isPurgeable &= !willScale;
SkImageDecoder* decoder = SkImageDecoder::Factory(stream);
if (decoder == NULL) {
return nullObjectReturn("SkImageDecoder::Factory returned null");
}
decoder->setSampleSize(sampleSize);
decoder->setDitherImage(doDither);
decoder->setPreferQualityOverSpeed(preferQualityOverSpeed);
decoder->setRequireUnpremultipliedColors(requireUnpremultiplied);
SkBitmap* outputBitmap = NULL;
unsigned int existingBufferSize = 0;
if (javaBitmap != NULL) {
outputBitmap = (SkBitmap*) env->GetIntField(javaBitmap, gBitmap_nativeBitmapFieldID);
if (outputBitmap->isImmutable()) {
ALOGW("Unable to reuse an immutable bitmap as an image decoder target.");
javaBitmap = NULL;
outputBitmap = NULL;
} else {
existingBufferSize = GraphicsJNI::getBitmapAllocationByteCount(env, javaBitmap);
}
}
SkAutoTDelete<SkBitmap> adb(outputBitmap == NULL ? new SkBitmap : NULL);
if (outputBitmap == NULL) outputBitmap = adb.get();
NinePatchPeeker peeker(decoder);
decoder->setPeeker(&peeker);
SkImageDecoder::Mode decodeMode = isPurgeable ? SkImageDecoder::kDecodeBounds_Mode : mode;
JavaPixelAllocator javaAllocator(env);
RecyclingPixelAllocator recyclingAllocator(outputBitmap->pixelRef(), existingBufferSize);
ScaleCheckingAllocator scaleCheckingAllocator(scale, existingBufferSize);
SkBitmap::Allocator* outputAllocator = (javaBitmap != NULL) ?
(SkBitmap::Allocator*)&recyclingAllocator : (SkBitmap::Allocator*)&javaAllocator;
if (decodeMode != SkImageDecoder::kDecodeBounds_Mode) {
if (!willScale) {
// If the java allocator is being used to allocate the pixel memory, the decoder
// need not write zeroes, since the memory is initialized to 0.
decoder->setSkipWritingZeroes(outputAllocator == &javaAllocator);
decoder->setAllocator(outputAllocator);
} else if (javaBitmap != NULL) {
// check for eventual scaled bounds at allocation time, so we don't decode the bitmap
// only to find the scaled result too large to fit in the allocation
decoder->setAllocator(&scaleCheckingAllocator);
}
}
// Only setup the decoder to be deleted after its stack-based, refcounted
// components (allocators, peekers, etc) are declared. This prevents RefCnt
// asserts from firing due to the order objects are deleted from the stack.
SkAutoTDelete<SkImageDecoder> add(decoder);
AutoDecoderCancel adc(options, decoder);
// To fix the race condition in case "requestCancelDecode"
// happens earlier than AutoDecoderCancel object is added
// to the gAutoDecoderCancelMutex linked list.
if (options != NULL && env->GetBooleanField(options, gOptions_mCancelID)) {
return nullObjectReturn("gOptions_mCancelID");
}
SkBitmap decodingBitmap;
if (!decoder->decode(stream, &decodingBitmap, prefConfig, decodeMode)) {
return nullObjectReturn("decoder->decode returned false");
}
int scaledWidth = decodingBitmap.width();
int scaledHeight = decodingBitmap.height();
if (willScale && mode != SkImageDecoder::kDecodeBounds_Mode) {
scaledWidth = int(scaledWidth * scale + 0.5f);
scaledHeight = int(scaledHeight * scale + 0.5f);
}
// update options (if any)
if (options != NULL) {
env->SetIntField(options, gOptions_widthFieldID, scaledWidth);
env->SetIntField(options, gOptions_heightFieldID, scaledHeight);
env->SetObjectField(options, gOptions_mimeFieldID,
getMimeTypeString(env, decoder->getFormat()));
}
// if we're in justBounds mode, return now (skip the java bitmap)
if (mode == SkImageDecoder::kDecodeBounds_Mode) {
return NULL;
}
jbyteArray ninePatchChunk = NULL;
if (peeker.fPatch != NULL) {
if (willScale) {
scaleNinePatchChunk(peeker.fPatch, scale);
}
size_t ninePatchArraySize = peeker.fPatch->serializedSize();
ninePatchChunk = env->NewByteArray(ninePatchArraySize);
if (ninePatchChunk == NULL) {
return nullObjectReturn("ninePatchChunk == null");
}
jbyte* array = (jbyte*) env->GetPrimitiveArrayCritical(ninePatchChunk, NULL);
if (array == NULL) {
return nullObjectReturn("primitive array == null");
}
peeker.fPatch->serialize(array);
env->ReleasePrimitiveArrayCritical(ninePatchChunk, array, 0);
}
jintArray layoutBounds = NULL;
if (peeker.fLayoutBounds != NULL) {
layoutBounds = env->NewIntArray(4);
if (layoutBounds == NULL) {
return nullObjectReturn("layoutBounds == null");
}
jint scaledBounds[4];
if (willScale) {
for (int i=0; i<4; i++) {
scaledBounds[i] = (jint)((((jint*)peeker.fLayoutBounds)[i]*scale) + .5f);
}
} else {
memcpy(scaledBounds, (jint*)peeker.fLayoutBounds, sizeof(scaledBounds));
}
env->SetIntArrayRegion(layoutBounds, 0, 4, scaledBounds);
if (javaBitmap != NULL) {
env->SetObjectField(javaBitmap, gBitmap_layoutBoundsFieldID, layoutBounds);
}
}
if (willScale) {
// This is weird so let me explain: we could use the scale parameter
// directly, but for historical reasons this is how the corresponding
// Dalvik code has always behaved. We simply recreate the behavior here.
// The result is slightly different from simply using scale because of
// the 0.5f rounding bias applied when computing the target image size
const float sx = scaledWidth / float(decodingBitmap.width());
const float sy = scaledHeight / float(decodingBitmap.height());
// TODO: avoid copying when scaled size equals decodingBitmap size
SkBitmap::Config config = configForScaledOutput(decodingBitmap.config());
outputBitmap->setConfig(config, scaledWidth, scaledHeight);
outputBitmap->setIsOpaque(decodingBitmap.isOpaque());
if (!outputBitmap->allocPixels(outputAllocator, NULL)) {
return nullObjectReturn("allocation failed for scaled bitmap");
}
// If outputBitmap's pixels are newly allocated by Java, there is no need
// to erase to 0, since the pixels were initialized to 0.
if (outputAllocator != &javaAllocator) {
outputBitmap->eraseColor(0);
}
SkPaint paint;
paint.setFilterBitmap(true);
SkCanvas canvas(*outputBitmap);
canvas.scale(sx, sy);
canvas.drawBitmap(decodingBitmap, 0.0f, 0.0f, &paint);
} else {
outputBitmap->swap(decodingBitmap);
}
if (padding) {
if (peeker.fPatch != NULL) {
GraphicsJNI::set_jrect(env, padding,
peeker.fPatch->paddingLeft, peeker.fPatch->paddingTop,
peeker.fPatch->paddingRight, peeker.fPatch->paddingBottom);
} else {
GraphicsJNI::set_jrect(env, padding, -1, -1, -1, -1);
}
}
SkPixelRef* pr;
if (isPurgeable) {
pr = installPixelRef(outputBitmap, stream, sampleSize, doDither);
} else {
// if we get here, we're in kDecodePixels_Mode and will therefore
// already have a pixelref installed.
pr = outputBitmap->pixelRef();
}
if (pr == NULL) {
return nullObjectReturn("Got null SkPixelRef");
}
if (!isMutable && javaBitmap == NULL) {
// promise we will never change our pixels (great for sharing and pictures)
pr->setImmutable();
}
// detach bitmap from its autodeleter, since we want to own it now
adb.detach();
if (javaBitmap != NULL) {
bool isPremultiplied = !requireUnpremultiplied;
GraphicsJNI::reinitBitmap(env, javaBitmap, outputBitmap, isPremultiplied);
outputBitmap->notifyPixelsChanged();
// If a java bitmap was passed in for reuse, pass it back
return javaBitmap;
}
int bitmapCreateFlags = 0x0;
if (isMutable) bitmapCreateFlags |= GraphicsJNI::kBitmapCreateFlag_Mutable;
if (!requireUnpremultiplied) bitmapCreateFlags |= GraphicsJNI::kBitmapCreateFlag_Premultiplied;
// now create the java bitmap
return GraphicsJNI::createBitmap(env, outputBitmap, javaAllocator.getStorageObj(),
bitmapCreateFlags, ninePatchChunk, layoutBounds, -1);
}
