bool SkImageGenerator::tryGenerateBitmap(SkBitmap* bitmap, const SkImageInfo* infoPtr) {
const SkImageInfo info = infoPtr ? *infoPtr : this->getInfo();
const size_t rowBytes = info.minRowBytes();
const size_t pixelSize = info.getSafeSize(rowBytes);
if (0 == pixelSize) {
return false;
}
SkAutoFree pixelStorage(sk_malloc_flags(pixelSize, 0));
void* pixels = pixelStorage.get();
if (!pixels) {
return false;
}
SkPMColor ctStorage[256];
int ctCount = 0;
if (!this->getPixels(info, pixels, rowBytes, ctStorage, &ctCount)) {
return false;
}
SkAutoTUnref<SkColorTable> ctable;
if (ctCount > 0) {
SkASSERT(kIndex_8_SkColorType == info.colorType());
ctable.reset(new SkColorTable(ctStorage, ctCount));
} else {
SkASSERT(kIndex_8_SkColorType != info.colorType());
}
return bitmap->installPixels(info, pixelStorage.detach(), rowBytes, ctable,
release_malloc_proc, nullptr);
}
SkTypeface* SkTypeface::Deserialize(SkStream* stream) {
SkFontDescriptor desc(stream);
size_t length = stream->readPackedUInt();
if (length > 0) {
void* addr = sk_malloc_flags(length, 0);
if (addr) {
SkAutoTUnref<SkMemoryStream> localStream(SkNEW(SkMemoryStream));
localStream->setMemoryOwned(addr, length);
if (stream->read(addr, length) == length) {
return SkTypeface::CreateFromStream(localStream.get());
} else {
// Failed to read the full font data, so fall through and try to create from name.
// If this is because of EOF, all subsequent reads from the stream will be EOF.
// If this is because of a stream error, the stream is in an error state,
// do not attempt to skip any remaining bytes.
}
} else {
// failed to allocate, so just skip and create-from-name
stream->skip(length);
}
}
return SkTypeface::CreateFromName(desc.getFamilyName(), desc.getStyle());
}
bool SkRgnBuilder::init(int maxHeight, int maxTransitions) {
if ((maxHeight | maxTransitions) < 0) {
return false;
}
Sk64 count, size;
// compute the count with +1 and +3 slop for the working buffer
count.setMul(maxHeight + 1, 3 + maxTransitions);
if (!count.is32() || count.isNeg()) {
return false;
}
fStorageCount = count.get32();
size.setMul(fStorageCount, sizeof(SkRegion::RunType));
if (!size.is32() || size.isNeg()) {
return false;
}
fStorage = (SkRegion::RunType*)sk_malloc_flags(size.get32(), 0);
if (NULL == fStorage) {
return false;
}
fCurrScanline = NULL; // signal empty collection
fPrevScanline = NULL; // signal first scanline
return true;
}
/** We explicitly use this allocator for SkBimap pixels, so that we can
freely assign memory allocated by one class to the other.
*/
uint8_t* SkMask::AllocImage(size_t size, AllocType at) {
size_t aligned_size = SkSafeMath::Align4(size);
unsigned flags = SK_MALLOC_THROW;
if (at == kZeroInit_Alloc) {
flags |= SK_MALLOC_ZERO_INITIALIZE;
}
return static_cast<uint8_t*>(sk_malloc_flags(aligned_size, flags));
}
GrGLBufferImpl::GrGLBufferImpl(GrGpuGL* gpu, const Desc& desc, GrGLenum bufferType)
: fDesc(desc)
, fBufferType(bufferType)
, fLockPtr(NULL) {
if (0 == desc.fID) {
fCPUData = sk_malloc_flags(desc.fSizeInBytes, SK_MALLOC_THROW);
} else {
fCPUData = NULL;
}
VALIDATE();
}
bool GraphicsJNI::setJavaPixelRef(JNIEnv* env, SkBitmap* bitmap,
SkColorTable* ctable, bool reportSizeToVM) {
Sk64 size64 = bitmap->getSize64();
if (size64.isNeg() || !size64.is32()) {
doThrow(env, "java/lang/IllegalArgumentException",
"bitmap size exceeds 32bits");
return false;
}
size_t size = size64.get32();
jlong jsize = size; // the VM wants longs for the size
if (reportSizeToVM) {
// SkDebugf("-------------- inform VM we've allocated %d bytes\n", size);
bool r = env->CallBooleanMethod(gVMRuntime_singleton,
gVMRuntime_trackExternalAllocationMethodID,
jsize);
if (GraphicsJNI::hasException(env)) {
return false;
}
if (!r) {
LOGE("VM won't let us allocate %zd bytes\n", size);
doThrowOOME(env, "bitmap size exceeds VM budget");
return false;
}
}
// call the version of malloc that returns null on failure
void* addr = sk_malloc_flags(size, 0);
if (NULL == addr) {
if (reportSizeToVM) {
// SkDebugf("-------------- inform VM we're releasing %d bytes which we couldn't allocate\n", size);
// we didn't actually allocate it, so inform the VM
env->CallVoidMethod(gVMRuntime_singleton,
gVMRuntime_trackExternalFreeMethodID,
jsize);
if (!GraphicsJNI::hasException(env)) {
doThrowOOME(env, "bitmap size too large for malloc");
}
}
return false;
}
SkPixelRef* pr = reportSizeToVM ?
new AndroidPixelRef(env, addr, size, ctable) :
new SkMallocPixelRef(addr, size, ctable);
bitmap->setPixelRef(pr)->unref();
// since we're already allocated, we lockPixels right away
// HeapAllocator behaves this way too
bitmap->lockPixels();
return true;
}
GrGLBufferImpl::GrGLBufferImpl(GrGpuGL* gpu, const Desc& desc, GrGLenum bufferType)
: fDesc(desc)
, fBufferType(bufferType)
, fMapPtr(NULL) {
if (0 == desc.fID) {
fCPUData = sk_malloc_flags(desc.fSizeInBytes, SK_MALLOC_THROW);
fGLSizeInBytes = 0;
} else {
fCPUData = NULL;
// We assume that the GL buffer was created at the desc's size initially.
fGLSizeInBytes = fDesc.fSizeInBytes;
}
VALIDATE();
}
bool SkAutoPixmapStorage::tryAlloc(const SkImageInfo& info) {
this->freeStorage();
size_t rb;
size_t size = AllocSize(info, &rb);
if (0 == size) {
return false;
}
void* pixels = sk_malloc_flags(size, 0);
if (nullptr == pixels) {
return false;
}
this->reset(info, pixels, rb);
fStorage = pixels;
return true;
}
static sk_sp<SkData>
MakeSkData(unsigned char* aData, const IntSize& aSize, int32_t aStride)
{
CheckedInt<size_t> size = aStride;
size *= aSize.height;
if (size.isValid()) {
void* mem = sk_malloc_flags(size.value(), 0);
if (mem) {
if (aData) {
memcpy(mem, aData, size.value());
}
return SkData::MakeFromMalloc(mem, size.value());
}
}
return nullptr;
}
void SkPDFDevice::drawPosText(const SkDraw&, const void* text, size_t len,
const SkScalar pos[], SkScalar constY,
int scalarsPerPos, const SkPaint& paint) {
SkASSERT(1 == scalarsPerPos || 2 == scalarsPerPos);
SkPaint textPaint = calculateTextPaint(paint);
updateGSFromPaint(textPaint, true);
// Make sure we have a glyph id encoding.
SkAutoFree glyphStorage;
uint16_t* glyphIDs;
size_t numGlyphs;
if (paint.getTextEncoding() != SkPaint::kGlyphID_TextEncoding) {
numGlyphs = paint.textToGlyphs(text, len, NULL);
glyphIDs = (uint16_t*)sk_malloc_flags(numGlyphs * 2,
SK_MALLOC_TEMP | SK_MALLOC_THROW);
glyphStorage.set(glyphIDs);
paint.textToGlyphs(text, len, glyphIDs);
textPaint.setTextEncoding(SkPaint::kGlyphID_TextEncoding);
} else {
SkASSERT((len & 1) == 0);
numGlyphs = len / 2;
glyphIDs = (uint16_t*)text;
}
SkDrawCacheProc glyphCacheProc = textPaint.getDrawCacheProc();
fContent.writeText("BT\n");
updateFont(textPaint, glyphIDs[0]);
for (size_t i = 0; i < numGlyphs; i++) {
SkPDFFont* font = fGraphicStack[fGraphicStackIndex].fFont;
uint16_t encodedValue = glyphIDs[i];
if (font->glyphsToPDFFontEncoding(&encodedValue, 1) != 1) {
updateFont(textPaint, glyphIDs[i]);
i--;
continue;
}
SkScalar x = pos[i * scalarsPerPos];
SkScalar y = scalarsPerPos == 1 ? constY : pos[i * scalarsPerPos + 1];
alignText(glyphCacheProc, textPaint, glyphIDs + i, 1, &x, &y, NULL);
setTextTransform(x, y, textPaint.getTextSkewX());
SkString encodedString =
SkPDFString::formatString(&encodedValue, 1,
font->multiByteGlyphs());
fContent.writeText(encodedString.c_str());
fContent.writeText(" Tj\n");
}
fContent.writeText("ET\n");
}
GrGLBufferImpl::GrGLBufferImpl(GrGLGpu* gpu, const Desc& desc, GrGLenum bufferType)
: fDesc(desc)
, fBufferType(bufferType)
, fMapPtr(nullptr) {
if (0 == desc.fID) {
if (gpu->caps()->mustClearUploadedBufferData()) {
fCPUData = sk_calloc_throw(desc.fSizeInBytes);
} else {
fCPUData = sk_malloc_flags(desc.fSizeInBytes, SK_MALLOC_THROW);
}
fGLSizeInBytes = 0;
} else {
fCPUData = nullptr;
// We assume that the GL buffer was created at the desc's size initially.
fGLSizeInBytes = fDesc.fSizeInBytes;
}
VALIDATE();
}
GrGLBuffer::GrGLBuffer(GrGLGpu* gpu, size_t size, GrBufferType intendedType,
GrAccessPattern accessPattern, bool cpuBacked, const void* data)
: INHERITED(gpu, size, intendedType, accessPattern, cpuBacked),
fCPUData(nullptr),
fIntendedType(intendedType),
fBufferID(0),
fSizeInBytes(size),
fUsage(gr_to_gl_access_pattern(intendedType, accessPattern)),
fGLSizeInBytes(0),
fHasAttachedToTexture(false) {
if (this->isCPUBacked()) {
// Core profile uses vertex array objects, which disallow client side arrays.
SkASSERT(!gpu->glCaps().isCoreProfile());
if (gpu->caps()->mustClearUploadedBufferData()) {
fCPUData = sk_calloc_throw(fSizeInBytes);
} else {
fCPUData = sk_malloc_flags(fSizeInBytes, SK_MALLOC_THROW);
}
if (data) {
memcpy(fCPUData, data, fSizeInBytes);
}
} else {
GL_CALL(GenBuffers(1, &fBufferID));
if (fBufferID) {
GrGLenum target = gpu->bindBuffer(fIntendedType, this);
CLEAR_ERROR_BEFORE_ALLOC(gpu->glInterface());
// make sure driver can allocate memory for this buffer
GL_ALLOC_CALL(gpu->glInterface(), BufferData(target,
(GrGLsizeiptr) fSizeInBytes,
data,
fUsage));
if (CHECK_ALLOC_ERROR(gpu->glInterface()) != GR_GL_NO_ERROR) {
GL_CALL(DeleteBuffers(1, &fBufferID));
fBufferID = 0;
} else {
fGLSizeInBytes = fSizeInBytes;
}
}
}
VALIDATE();
this->registerWithCache(SkBudgeted::kYes);
}
bool SkRgnBuilder::init(int maxHeight, int maxTransitions, bool pathIsInverse) {
if ((maxHeight | maxTransitions) < 0) {
return false;
}
Sk64 count, size;
if (pathIsInverse) {
// allow for additional X transitions to "invert" each scanline
// [ L' ... normal transitions ... R' ]
//
maxTransitions += 2;
}
// compute the count with +1 and +3 slop for the working buffer
count.setMul(maxHeight + 1, 3 + maxTransitions);
if (pathIsInverse) {
// allow for two "empty" rows for the top and bottom
// [ Y, 1, L, R, S] == 5 (*2 for top and bottom)
count.add(10);
}
if (!count.is32() || count.isNeg()) {
return false;
}
fStorageCount = count.get32();
size.setMul(fStorageCount, sizeof(SkRegion::RunType));
if (!size.is32() || size.isNeg()) {
return false;
}
fStorage = (SkRegion::RunType*)sk_malloc_flags(size.get32(), 0);
if (NULL == fStorage) {
return false;
}
fCurrScanline = NULL; // signal empty collection
fPrevScanline = NULL; // signal first scanline
return true;
}
SkData* DecodingImageGenerator::refEncodedData() {
// This functionality is used in `gm --serialize`
// Does not encode options.
if (fData != NULL) {
return SkSafeRef(fData);
}
// TODO(halcanary): SkStreamRewindable needs a refData() function
// which returns a cheap copy of the underlying data.
if (!fStream->rewind()) {
return NULL;
}
size_t length = fStream->getLength();
if (0 == length) {
return NULL;
}
void* buffer = sk_malloc_flags(length, 0);
SkCheckResult(fStream->read(buffer, length), length);
fData = SkData::NewFromMalloc(buffer, length);
return SkSafeRef(fData);
}
SkChunkAlloc::Block* SkChunkAlloc::newBlock(size_t bytes, AllocFailType ftype) {
size_t size = bytes;
if (size < fChunkSize) {
size = fChunkSize;
}
Block* block = (Block*)sk_malloc_flags(sizeof(Block) + size,
ftype == kThrow_AllocFailType ? SK_MALLOC_THROW : 0);
if (block) {
// block->fNext = fBlock;
block->fFreeSize = size;
block->fFreePtr = block->startOfData();
fTotalCapacity += size;
fBlockCount += 1;
fChunkSize = increase_next_size(fChunkSize);
}
return block;
}
bool SkRgnBuilder::init(int maxHeight, int maxTransitions, bool pathIsInverse) {
if ((maxHeight | maxTransitions) < 0) {
return false;
}
if (pathIsInverse) {
// allow for additional X transitions to "invert" each scanline
// [ L' ... normal transitions ... R' ]
//
maxTransitions += 2;
}
// compute the count with +1 and +3 slop for the working buffer
int64_t count = sk_64_mul(maxHeight + 1, 3 + maxTransitions);
if (pathIsInverse) {
// allow for two "empty" rows for the top and bottom
// [ Y, 1, L, R, S] == 5 (*2 for top and bottom)
count += 10;
}
if (count < 0 || !sk_64_isS32(count)) {
return false;
}
fStorageCount = sk_64_asS32(count);
int64_t size = sk_64_mul(fStorageCount, sizeof(SkRegion::RunType));
if (size < 0 || !sk_64_isS32(size)) {
return false;
}
fStorage = (SkRegion::RunType*)sk_malloc_flags(sk_64_asS32(size), 0);
if (NULL == fStorage) {
return false;
}
fCurrScanline = NULL; // signal empty collection
fPrevScanline = NULL; // signal first scanline
return true;
}
SkChunkAlloc::Block* SkChunkAlloc::newBlock(size_t bytes, AllocFailType ftype) {
Block* block = fPool;
if (block && bytes <= block->fFreeSize) {
fPool = block->fNext;
return block;
}
size_t size = SkMax32((int32_t)bytes, (int32_t)fMinSize);
block = (Block*)sk_malloc_flags(sizeof(Block) + size,
ftype == kThrow_AllocFailType ? SK_MALLOC_THROW : 0);
if (block) {
// block->fNext = fBlock;
block->fFreeSize = size;
block->fFreePtr = block->startOfData();
fTotalCapacity += size;
}
return block;
}
SkMallocPixelRef* SkMallocPixelRef::NewAllocate(const SkImageInfo& info,
size_t requestedRowBytes,
SkColorTable* ctable) {
if (!is_valid(info, ctable)) {
return NULL;
}
int32_t minRB = SkToS32(info.minRowBytes());
if (minRB < 0) {
return NULL; // allocation will be too large
}
if (requestedRowBytes > 0 && (int32_t)requestedRowBytes < minRB) {
return NULL; // cannot meet requested rowbytes
}
int32_t rowBytes;
if (requestedRowBytes) {
rowBytes = SkToS32(requestedRowBytes);
} else {
rowBytes = minRB;
}
int64_t bigSize = (int64_t)info.fHeight * rowBytes;
if (!sk_64_isS32(bigSize)) {
return NULL;
}
size_t size = sk_64_asS32(bigSize);
SkASSERT(size >= info.getSafeSize(rowBytes));
void* addr = sk_malloc_flags(size, 0);
if (NULL == addr) {
return NULL;
}
return SkNEW_ARGS(SkMallocPixelRef,
(info, addr, rowBytes, ctable,
sk_free_releaseproc, NULL));
}
SkMallocPixelRef* SkMallocPixelRef::NewAllocate(const SkImageInfo& info,
size_t requestedRowBytes,
SkColorTable* ctable) {
if (!is_valid(info, ctable)) {
return NULL;
}
int32_t minRB = info.minRowBytes();
if (minRB < 0) {
return NULL; // allocation will be too large
}
if (requestedRowBytes > 0 && (int32_t)requestedRowBytes < minRB) {
return NULL; // cannot meet requested rowbytes
}
int32_t rowBytes;
if (requestedRowBytes) {
rowBytes = requestedRowBytes;
} else {
rowBytes = minRB;
}
Sk64 bigSize;
bigSize.setMul(info.fHeight, rowBytes);
if (!bigSize.is32()) {
return NULL;
}
size_t size = bigSize.get32();
void* addr = sk_malloc_flags(size, 0);
if (NULL == addr) {
return NULL;
}
return SkNEW_ARGS(SkMallocPixelRef, (info, addr, rowBytes, ctable, true));
}
sk_sp<SkPixelRef> SkMallocPixelRef::MakeAllocate(const SkImageInfo& info,
size_t rowBytes,
sk_sp<SkColorTable> ctable) {
auto sk_malloc_nothrow = [](size_t size) { return sk_malloc_flags(size, 0); };
return MakeUsing(sk_malloc_nothrow, info, rowBytes, std::move(ctable));
}
SkCodec* SkIcoCodec::NewFromStream(SkStream* stream, Result* result) {
// Ensure that we do not leak the input stream
std::unique_ptr<SkStream> inputStream(stream);
// Header size constants
static const uint32_t kIcoDirectoryBytes = 6;
static const uint32_t kIcoDirEntryBytes = 16;
// Read the directory header
std::unique_ptr<uint8_t[]> dirBuffer(new uint8_t[kIcoDirectoryBytes]);
if (inputStream.get()->read(dirBuffer.get(), kIcoDirectoryBytes) !=
kIcoDirectoryBytes) {
SkCodecPrintf("Error: unable to read ico directory header.\n");
*result = kIncompleteInput;
return nullptr;
}
// Process the directory header
const uint16_t numImages = get_short(dirBuffer.get(), 4);
if (0 == numImages) {
SkCodecPrintf("Error: No images embedded in ico.\n");
*result = kInvalidInput;
return nullptr;
}
// This structure is used to represent the vital information about entries
// in the directory header. We will obtain this information for each
// directory entry.
struct Entry {
uint32_t offset;
uint32_t size;
};
SkAutoFree dirEntryBuffer(sk_malloc_flags(sizeof(Entry) * numImages,
SK_MALLOC_TEMP));
if (!dirEntryBuffer) {
SkCodecPrintf("Error: OOM allocating ICO directory for %i images.\n",
numImages);
*result = kInternalError;
return nullptr;
}
auto* directoryEntries = reinterpret_cast<Entry*>(dirEntryBuffer.get());
// Iterate over directory entries
for (uint32_t i = 0; i < numImages; i++) {
uint8_t entryBuffer[kIcoDirEntryBytes];
if (inputStream->read(entryBuffer, kIcoDirEntryBytes) !=
kIcoDirEntryBytes) {
SkCodecPrintf("Error: Dir entries truncated in ico.\n");
*result = kIncompleteInput;
return nullptr;
}
// The directory entry contains information such as width, height,
// bits per pixel, and number of colors in the color palette. We will
// ignore these fields since they are repeated in the header of the
// embedded image. In the event of an inconsistency, we would always
// defer to the value in the embedded header anyway.
// Specifies the size of the embedded image, including the header
uint32_t size = get_int(entryBuffer, 8);
// Specifies the offset of the embedded image from the start of file.
// It does not indicate the start of the pixel data, but rather the
// start of the embedded image header.
uint32_t offset = get_int(entryBuffer, 12);
// Save the vital fields
directoryEntries[i].offset = offset;
directoryEntries[i].size = size;
}
// Default Result, if no valid embedded codecs are found.
*result = kInvalidInput;
// It is "customary" that the embedded images will be stored in order of
// increasing offset. However, the specification does not indicate that
// they must be stored in this order, so we will not trust that this is the
// case. Here we sort the embedded images by increasing offset.
struct EntryLessThan {
bool operator() (Entry a, Entry b) const {
return a.offset < b.offset;
}
};
EntryLessThan lessThan;
SkTQSort(directoryEntries, &directoryEntries[numImages - 1], lessThan);
// Now will construct a candidate codec for each of the embedded images
uint32_t bytesRead = kIcoDirectoryBytes + numImages * kIcoDirEntryBytes;
std::unique_ptr<SkTArray<std::unique_ptr<SkCodec>, true>> codecs(
new (SkTArray<std::unique_ptr<SkCodec>, true>)(numImages));
for (uint32_t i = 0; i < numImages; i++) {
uint32_t offset = directoryEntries[i].offset;
uint32_t size = directoryEntries[i].size;
// Ensure that the offset is valid
if (offset < bytesRead) {
SkCodecPrintf("Warning: invalid ico offset.\n");
continue;
}
// If we cannot skip, assume we have reached the end of the stream and
// stop trying to make codecs
if (inputStream.get()->skip(offset - bytesRead) != offset - bytesRead) {
SkCodecPrintf("Warning: could not skip to ico offset.\n");
break;
}
bytesRead = offset;
// Create a new stream for the embedded codec
SkAutoFree buffer(sk_malloc_flags(size, 0));
if (!buffer) {
SkCodecPrintf("Warning: OOM trying to create embedded stream.\n");
break;
}
if (inputStream->read(buffer.get(), size) != size) {
SkCodecPrintf("Warning: could not create embedded stream.\n");
*result = kIncompleteInput;
break;
}
sk_sp<SkData> data(SkData::MakeFromMalloc(buffer.release(), size));
std::unique_ptr<SkMemoryStream> embeddedStream(new SkMemoryStream(data));
bytesRead += size;
// Check if the embedded codec is bmp or png and create the codec
SkCodec* codec = nullptr;
Result dummyResult;
if (SkPngCodec::IsPng((const char*) data->bytes(), data->size())) {
codec = SkPngCodec::NewFromStream(embeddedStream.release(), &dummyResult);
} else {
codec = SkBmpCodec::NewFromIco(embeddedStream.release(), &dummyResult);
}
// Save a valid codec
if (nullptr != codec) {
codecs->push_back().reset(codec);
}
}
// Recognize if there are no valid codecs
if (0 == codecs->count()) {
SkCodecPrintf("Error: could not find any valid embedded ico codecs.\n");
return nullptr;
}
// Use the largest codec as a "suggestion" for image info
size_t maxSize = 0;
int maxIndex = 0;
for (int i = 0; i < codecs->count(); i++) {
SkImageInfo info = codecs->operator[](i)->getInfo();
size_t size = info.getSafeSize(info.minRowBytes());
if (size > maxSize) {
maxSize = size;
maxIndex = i;
}
}
int width = codecs->operator[](maxIndex)->getInfo().width();
int height = codecs->operator[](maxIndex)->getInfo().height();
SkEncodedInfo info = codecs->operator[](maxIndex)->getEncodedInfo();
SkColorSpace* colorSpace = codecs->operator[](maxIndex)->getInfo().colorSpace();
*result = kSuccess;
// The original stream is no longer needed, because the embedded codecs own their
// own streams.
return new SkIcoCodec(width, height, info, codecs.release(), sk_ref_sp(colorSpace));
}
static Block* Alloc(Block* prev, size_t size, unsigned flags) {
SkASSERT(size >= sizeof(Block));
Block* b = (Block*)sk_malloc_flags(size, flags);
b->prev = prev;
return b;
}
void SkPDFDevice::drawText(const SkDraw& d, const void* text, size_t len,
SkScalar x, SkScalar y, const SkPaint& paint) {
SkPaint textPaint = calculateTextPaint(paint);
updateGSFromPaint(textPaint, true);
// We want the text in glyph id encoding and a writable buffer, so we end
// up making a copy either way.
size_t numGlyphs = paint.textToGlyphs(text, len, NULL);
uint16_t* glyphIDs =
(uint16_t*)sk_malloc_flags(numGlyphs * 2,
SK_MALLOC_TEMP | SK_MALLOC_THROW);
SkAutoFree autoFreeGlyphIDs(glyphIDs);
if (paint.getTextEncoding() != SkPaint::kGlyphID_TextEncoding) {
paint.textToGlyphs(text, len, glyphIDs);
textPaint.setTextEncoding(SkPaint::kGlyphID_TextEncoding);
} else {
SkASSERT((len & 1) == 0);
SkASSERT(len / 2 == numGlyphs);
memcpy(glyphIDs, text, len);
}
SkScalar width;
SkScalar* widthPtr = NULL;
if (textPaint.isUnderlineText() || textPaint.isStrikeThruText())
widthPtr = &width;
SkDrawCacheProc glyphCacheProc = textPaint.getDrawCacheProc();
alignText(glyphCacheProc, textPaint, glyphIDs, numGlyphs, &x, &y, widthPtr);
fContent.writeText("BT\n");
setTextTransform(x, y, textPaint.getTextSkewX());
size_t consumedGlyphCount = 0;
while (numGlyphs > consumedGlyphCount) {
updateFont(textPaint, glyphIDs[consumedGlyphCount]);
SkPDFFont* font = fGraphicStack[fGraphicStackIndex].fFont;
size_t availableGlyphs =
font->glyphsToPDFFontEncoding(glyphIDs + consumedGlyphCount,
numGlyphs - consumedGlyphCount);
SkString encodedString =
SkPDFString::formatString(glyphIDs + consumedGlyphCount,
availableGlyphs, font->multiByteGlyphs());
fContent.writeText(encodedString.c_str());
consumedGlyphCount += availableGlyphs;
fContent.writeText(" Tj\n");
}
fContent.writeText("ET\n");
// Draw underline and/or strikethrough if the paint has them.
// drawPosText() and drawTextOnPath() don't draw underline or strikethrough
// because the raster versions don't. Use paint instead of textPaint
// because we may have changed strokeWidth to do fakeBold text.
if (paint.isUnderlineText() || paint.isStrikeThruText()) {
SkScalar textSize = paint.getTextSize();
SkScalar height = SkScalarMul(textSize, kStdUnderline_Thickness);
if (paint.isUnderlineText()) {
SkScalar top = SkScalarMulAdd(textSize, kStdUnderline_Offset, y);
SkRect r = SkRect::MakeXYWH(x, top - height, width, height);
drawRect(d, r, paint);
}
if (paint.isStrikeThruText()) {
SkScalar top = SkScalarMulAdd(textSize, kStdStrikeThru_Offset, y);
SkRect r = SkRect::MakeXYWH(x, top - height, width, height);
drawRect(d, r, paint);
}
}
}
void* sk_malloc_throw(size_t size)
{
return sk_malloc_flags(size, 2);
}
void* sk_malloc_throw(size_t size) {
return sk_malloc_flags(size, SK_MALLOC_THROW);
}
static void* pdf_alloc_nl(FPDFEMB_MEMMGR* pMgr, unsigned int size) {
void* addr = sk_malloc_flags(size, 0);
// SkDebugf("---- pdf_alloc_nl %d %p\n", size, addr);
return addr;
}