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Revert "skia: add heif decoding support"

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This reverts commit c2a954290d.

Reason for revert: both Android and Google3 rolls cannot compile.  Android cannot cast std::unique_ptr<T> to T*, Google3 cannot find HeifDecoderAPI.h.

Original change's description:
> skia: add heif decoding support
> 
> Bug: b/64077740
> Change-Id: I11e0243bcc4c21c0aa5aa29a719dd0fcba7ae6f7
> Reviewed-on: https://skia-review.googlesource.com/35123
> Reviewed-by: Chong Zhang <chz@google.com>
> Reviewed-by: Leon Scroggins <scroggo@google.com>
> Commit-Queue: Chong Zhang <chz@google.com>
> Commit-Queue: Leon Scroggins <scroggo@google.com>

TBR=scroggo@google.com,chz@google.com

Change-Id: Id98f025e63daec50408186000453d1695170f7a8
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: b/64077740
Reviewed-on: https://skia-review.googlesource.com/35741
Reviewed-by: Mike Klein <mtklein@google.com>
Commit-Queue: Mike Klein <mtklein@google.com>
This commit is contained in:
Mike Klein 2017-08-17 13:33:56 +00:00 committed by Skia Commit-Bot
parent be1b071753
commit db68a426b6
11 changed files with 14 additions and 536 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
BUILD.gn
View File

@ -31,7 +31,6 @@ declare_args() {
skia_use_piex = !is_win
skia_use_zlib = true
skia_use_metal = false
skia_use_libheif = false
skia_android_serial = ""
skia_enable_discrete_gpu = true
@ -533,17 +532,6 @@ optional("gpu") {
}
}
optional("heif") {
enabled = skia_use_libheif
public_defines = [ "SK_HAS_HEIF_LIBRARY" ]
deps = []
sources = [
"src/codec/SkHeifCodec.cpp",
]
}
optional("jpeg") {
enabled = skia_use_libjpeg_turbo
public_defines = [ "SK_HAS_JPEG_LIBRARY" ]
@ -667,7 +655,6 @@ component("skia") {
":fontmgr_fontconfig",
":fontmgr_fuchsia",
":gpu",
":heif",
":jpeg",
":none",
":pdf",

3
gn/gn_to_bp.py
View File

@ -31,7 +31,6 @@ tool_shared_libs = [
'libicui18n',
'libexpat',
'libft2',
'libheif',
'libdng_sdk',
'libpiex',
'libcutils',
@ -125,7 +124,6 @@ cc_library {
"libdng_sdk",
"libexpat",
"libft2",
"libheif",
"libicui18n",
"libicuuc",
"libjpeg",
@ -197,7 +195,6 @@ cc_test {
gn_args = {
'is_official_build': 'true',
'skia_enable_tools': 'true',
'skia_use_libheif': 'true',
'skia_use_vulkan': 'true',
'target_cpu': '"none"',
'target_os': '"android"',

2
include/codec/SkCodec.h
View File

@ -50,7 +50,7 @@ public:
* this many bytes, or by implementing rewind() to be able to rewind()
* after reading this many bytes.
*/
static constexpr size_t MinBufferedBytesNeeded() { return 32; }
static size_t MinBufferedBytesNeeded();
/**
* Error codes for various SkCodec methods.

1
include/core/SkEncodedImageFormat.h
View File

@ -28,7 +28,6 @@ enum class SkEncodedImageFormat {
kKTX,
kASTC,
kDNG,
kHEIF,
};
#endif // SkEncodedImageFormat_DEFINED

1
src/android/SkBitmapRegionDecoder.cpp
View File

@ -32,7 +32,6 @@ SkBitmapRegionDecoder* SkBitmapRegionDecoder::Create(
case SkEncodedImageFormat::kJPEG:
case SkEncodedImageFormat::kPNG:
case SkEncodedImageFormat::kWEBP:
case SkEncodedImageFormat::kHEIF:
break;
default:
return nullptr;

3
src/codec/SkAndroidCodec.cpp
View File

@ -83,9 +83,6 @@ std::unique_ptr<SkAndroidCodec> SkAndroidCodec::MakeFromStream(std::unique_ptr<S
case SkEncodedImageFormat::kGIF:
case SkEncodedImageFormat::kBMP:
case SkEncodedImageFormat::kWBMP:
#ifdef SK_HAS_HEIF_LIBRARY
case SkEncodedImageFormat::kHEIF:
#endif
return skstd::make_unique<SkSampledCodec>(codec.release());
#ifdef SK_HAS_WEBP_LIBRARY
case SkEncodedImageFormat::kWEBP:

14
src/codec/SkCodec.cpp
View File

@ -23,7 +23,6 @@
#include "SkStream.h"
#include "SkWbmpCodec.h"
#include "SkWebpCodec.h"
#include "SkHeifCodec.h"
struct DecoderProc {
bool (*IsFormat)(const void*, size_t);
@ -42,12 +41,13 @@ static const DecoderProc gDecoderProcs[] = {
{ SkIcoCodec::IsIco, SkIcoCodec::MakeFromStream },
#endif
{ SkBmpCodec::IsBmp, SkBmpCodec::MakeFromStream },
{ SkWbmpCodec::IsWbmp, SkWbmpCodec::MakeFromStream },
#ifdef SK_HAS_HEIF_LIBRARY
{ SkHeifCodec::IsHeif, SkHeifCodec::MakeFromStream },
#endif
{ SkWbmpCodec::IsWbmp, SkWbmpCodec::MakeFromStream }
};
size_t SkCodec::MinBufferedBytesNeeded() {
return WEBP_VP8_HEADER_SIZE;
}
std::unique_ptr<SkCodec> SkCodec::MakeFromStream(std::unique_ptr<SkStream> stream,
Result* outResult, SkPngChunkReader* chunkReader) {
Result resultStorage;
@ -60,7 +60,9 @@ std::unique_ptr<SkCodec> SkCodec::MakeFromStream(std::unique_ptr<SkStream> strea
return nullptr;
}
constexpr size_t bytesToRead = MinBufferedBytesNeeded();
// 14 is enough to read all of the supported types.
const size_t bytesToRead = 14;
SkASSERT(bytesToRead <= MinBufferedBytesNeeded());
char buffer[bytesToRead];
size_t bytesRead = stream->peek(buffer, bytesToRead);

397
src/codec/SkHeifCodec.cpp
View File

@ -1,397 +0,0 @@
/*
* Copyright 2017 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkCodec.h"
#include "SkCodecPriv.h"
#include "SkColorPriv.h"
#include "SkColorSpace_Base.h"
#include "SkStream.h"
#include "SkTypes.h"
#include "SkHeifCodec.h"
#include "SkEndian.h"
#include "HeifDecoderAPI.h"
#define FOURCC(c1, c2, c3, c4) \
((c1) << 24 | (c2) << 16 | (c3) << 8 | (c4))
bool SkHeifCodec::IsHeif(const void* buffer, size_t bytesRead) {
// Parse the ftyp box up to bytesRead to determine if this is HEIF.
// Any valid ftyp box should have at least 8 bytes.
if (bytesRead < 8) {
return false;
}
uint32_t* ptr = (uint32_t*)buffer;
uint64_t chunkSize = SkEndian_SwapBE32(ptr[0]);
uint32_t chunkType = SkEndian_SwapBE32(ptr[1]);
if (chunkType != FOURCC('f', 't', 'y', 'p')) {
return false;
}
off64_t offset = 8;
if (chunkSize == 1) {
// This indicates that the next 8 bytes represent the chunk size,
// and chunk data comes after that.
if (bytesRead < 16) {
return false;
}
auto* chunkSizePtr = SkTAddOffset<const uint64_t>(buffer, offset);
chunkSize = SkEndian_SwapBE64(*chunkSizePtr);
if (chunkSize < 16) {
// The smallest valid chunk is 16 bytes long in this case.
return false;
}
offset += 8;
} else if (chunkSize < 8) {
// The smallest valid chunk is 8 bytes long.
return false;
}
if (chunkSize > bytesRead) {
chunkSize = bytesRead;
}
off64_t chunkDataSize = chunkSize - offset;
// It should at least have major brand (4-byte) and minor version (4-bytes).
// The rest of the chunk (if any) is a list of (4-byte) compatible brands.
if (chunkDataSize < 8) {
return false;
}
uint32_t numCompatibleBrands = (chunkDataSize - 8) / 4;
for (size_t i = 0; i < numCompatibleBrands + 2; ++i) {
if (i == 1) {
// Skip this index, it refers to the minorVersion,
// not a brand.
continue;
}
auto* brandPtr = SkTAddOffset<const uint32_t>(buffer, offset + 4 * i);
uint32_t brand = SkEndian_SwapBE32(*brandPtr);
if (brand == FOURCC('m', 'i', 'f', '1') || brand == FOURCC('h', 'e', 'i', 'c')) {
return true;
}
}
return false;
}
std::unique_ptr<SkCodec> SkHeifCodec::MakeFromStream(
std::unique_ptr<SkStream> stream, Result* result) {
SkCodec* codec = nullptr;
*result = ReadHeader(stream, &codec);
if (kSuccess == *result) {
// Codec has taken ownership of the stream, we do not need to delete it
SkASSERT(codec);
stream.release();
return codec;
}
return nullptr;
}
static SkCodec::Origin get_orientation(const HeifFrameInfo& frameInfo) {
switch (frameInfo.mRotationAngle) {
case 0: return SkCodec::kTopLeft_Origin;
case 90: return SkCodec::kRightTop_Origin;
case 180: return SkCodec::kBottomRight_Origin;
case 270: return SkCodec::kLeftBottom_Origin;
}
return SkCodec::kDefault_Origin;
}
struct SkHeifStreamWrapper : public HeifStream {
SkHeifStreamWrapper(SkStream* stream) : fStream(stream) {}
~SkHeifStreamWrapper() override {}
size_t read(void* buffer, size_t size) override {
return fStream->read(buffer, size);
}
bool rewind() override {
return fStream->rewind();
}
bool seek(size_t position) override {
return fStream->seek(position);
}
bool hasLength() const override {
return fStream->hasLength();
}
size_t getLength() const override {
return fStream->getLength();
}
private:
std::unique_ptr<SkStream> fStream;
};
SkCodec::Result SkHeifCodec::ReadHeader(SkStream* stream, SkCodec** codecOut) {
std::unique_ptr<SkHeifStreamWrapper> streamWrapper(
new SkHeifStreamWrapper(stream));
SkASSERT(codecOut != nullptr);
// Create a HeifDecoder to own all of the decode information
std::unique_ptr<HeifDecoder> heifDecoder(createHeifDecoder());
if (heifDecoder.get() == nullptr) {
return kInternalError;
}
// Initialize the decoder info and the source manager
HeifFrameInfo frameInfo;
if (!heifDecoder->init(streamWrapper.release(), &frameInfo)) {
return kInvalidInput;
}
// Create image info object and the codec
SkEncodedInfo info = SkEncodedInfo::Make(
SkEncodedInfo::kYUV_Color, SkEncodedInfo::kOpaque_Alpha, 8);
Origin orientation = get_orientation(frameInfo);
sk_sp<SkColorSpace> colorSpace = nullptr;
if ((frameInfo.mIccSize > 0) && (frameInfo.mIccData != nullptr)) {
SkColorSpace_Base::ICCTypeFlag iccType = SkColorSpace_Base::kRGB_ICCTypeFlag;
colorSpace = SkColorSpace_Base::MakeICC(
frameInfo.mIccData.get(), frameInfo.mIccSize, iccType);
}
if (!colorSpace) {
colorSpace = SkColorSpace::MakeSRGB();
}
*codecOut = new SkHeifCodec(frameInfo.mWidth, frameInfo.mHeight,
info, heifDecoder.release(), std::move(colorSpace), orientation);
return kSuccess;
}
SkHeifCodec::SkHeifCodec(int width, int height, const SkEncodedInfo& info,
HeifDecoder* heifDecoder, sk_sp<SkColorSpace> colorSpace, Origin origin)
: INHERITED(width, height, info, SkColorSpaceXform::kRGBA_8888_ColorFormat,
nullptr, std::move(colorSpace), origin)
, fHeifDecoder(heifDecoder)
, fFrameInfo(new HeifFrameInfo())
, fSwizzleSrcRow(nullptr)
, fColorXformSrcRow(nullptr)
, fSwizzlerSubset(SkIRect::MakeEmpty())
{}
/*
* Checks if the conversion between the input image and the requested output
* image has been implemented
* Sets the output color format
*/
bool SkHeifCodec::setOutputColorFormat(const SkImageInfo& dstInfo) {
if (kUnknown_SkAlphaType == dstInfo.alphaType()) {
return false;
}
if (kOpaque_SkAlphaType != dstInfo.alphaType()) {
SkCodecPrintf("Warning: an opaque image should be decoded as opaque "
"- it is being decoded as non-opaque, which will draw slower\n");
}
switch (dstInfo.colorType()) {
case kRGBA_8888_SkColorType:
return fHeifDecoder->setOutputColor(kHeifColorFormat_RGBA_8888);
case kBGRA_8888_SkColorType:
return fHeifDecoder->setOutputColor(kHeifColorFormat_BGRA_8888);
case kRGB_565_SkColorType:
if (this->colorXform()) {
return fHeifDecoder->setOutputColor(kHeifColorFormat_RGBA_8888);
} else {
return fHeifDecoder->setOutputColor(kHeifColorFormat_RGB565);
}
case kRGBA_F16_SkColorType:
SkASSERT(this->colorXform());
if (!dstInfo.colorSpace()->gammaIsLinear()) {
return false;
}
return fHeifDecoder->setOutputColor(kHeifColorFormat_RGBA_8888);
default:
return false;
}
}
int SkHeifCodec::readRows(const SkImageInfo& dstInfo, void* dst, size_t rowBytes, int count,
const Options& opts) {
// When fSwizzleSrcRow is non-null, it means that we need to swizzle. In this case,
// we will always decode into fSwizzlerSrcRow before swizzling into the next buffer.
// We can never swizzle "in place" because the swizzler may perform sampling and/or
// subsetting.
// When fColorXformSrcRow is non-null, it means that we need to color xform and that
// we cannot color xform "in place" (many times we can, but not when the dst is F16).
// In this case, we will color xform from fColorXformSrcRow into the dst.
uint8_t* decodeDst = (uint8_t*) dst;
uint32_t* swizzleDst = (uint32_t*) dst;
size_t decodeDstRowBytes = rowBytes;
size_t swizzleDstRowBytes = rowBytes;
int dstWidth = opts.fSubset ? opts.fSubset->width() : dstInfo.width();
if (fSwizzleSrcRow && fColorXformSrcRow) {
decodeDst = fSwizzleSrcRow;
swizzleDst = fColorXformSrcRow;
decodeDstRowBytes = 0;
swizzleDstRowBytes = 0;
dstWidth = fSwizzler->swizzleWidth();
} else if (fColorXformSrcRow) {
decodeDst = (uint8_t*) fColorXformSrcRow;
swizzleDst = fColorXformSrcRow;
decodeDstRowBytes = 0;
swizzleDstRowBytes = 0;
} else if (fSwizzleSrcRow) {
decodeDst = fSwizzleSrcRow;
decodeDstRowBytes = 0;
dstWidth = fSwizzler->swizzleWidth();
}
for (int y = 0; y < count; y++) {
if (!fHeifDecoder->getScanline(decodeDst)) {
return y;
}
if (fSwizzler) {
fSwizzler->swizzle(swizzleDst, decodeDst);
}
if (this->colorXform()) {
this->applyColorXform(dst, swizzleDst, dstWidth, kOpaque_SkAlphaType);
dst = SkTAddOffset<void>(dst, rowBytes);
}
decodeDst = SkTAddOffset<uint8_t>(decodeDst, decodeDstRowBytes);
swizzleDst = SkTAddOffset<uint32_t>(swizzleDst, swizzleDstRowBytes);
}
return count;
}
/*
* Performs the heif decode
*/
SkCodec::Result SkHeifCodec::onGetPixels(const SkImageInfo& dstInfo,
void* dst, size_t dstRowBytes,
const Options& options,
int* rowsDecoded) {
if (options.fSubset) {
// Not supporting subsets on this path for now.
// TODO: if the heif has tiles, we can support subset here, but
// need to retrieve tile config from metadata retriever first.
return kUnimplemented;
}
if (!this->initializeColorXform(dstInfo, options.fPremulBehavior)) {
return kInvalidConversion;
}
// Check if we can decode to the requested destination and set the output color space
if (!this->setOutputColorFormat(dstInfo)) {
return kInvalidConversion;
}
if (!fHeifDecoder->decode(fFrameInfo.get())) {
return kInvalidInput;
}
this->allocateStorage(dstInfo);
int rows = this->readRows(dstInfo, dst, dstRowBytes, dstInfo.height(), options);
if (rows < dstInfo.height()) {
*rowsDecoded = rows;
return kIncompleteInput;
}
return kSuccess;
}
void SkHeifCodec::allocateStorage(const SkImageInfo& dstInfo) {
int dstWidth = dstInfo.width();
size_t swizzleBytes = 0;
if (fSwizzler) {
swizzleBytes = fFrameInfo->mBytesPerPixel * fFrameInfo->mWidth;
dstWidth = fSwizzler->swizzleWidth();
SkASSERT(!this->colorXform() || SkIsAlign4(swizzleBytes));
}
size_t xformBytes = 0;
if (this->colorXform() && (kRGBA_F16_SkColorType == dstInfo.colorType() ||
kRGB_565_SkColorType == dstInfo.colorType())) {
xformBytes = dstWidth * sizeof(uint32_t);
}
size_t totalBytes = swizzleBytes + xformBytes;
fStorage.reset(totalBytes);
if (totalBytes > 0) {
fSwizzleSrcRow = (swizzleBytes > 0) ? fStorage.get() : nullptr;
fColorXformSrcRow = (xformBytes > 0) ?
SkTAddOffset<uint32_t>(fStorage.get(), swizzleBytes) : nullptr;
}
}
void SkHeifCodec::initializeSwizzler(
const SkImageInfo& dstInfo, const Options& options) {
SkEncodedInfo swizzlerInfo = this->getEncodedInfo();
SkImageInfo swizzlerDstInfo = dstInfo;
if (this->colorXform()) {
// The color xform will be expecting RGBA 8888 input.
swizzlerDstInfo = swizzlerDstInfo.makeColorType(kRGBA_8888_SkColorType);
}
fSwizzler.reset(SkSwizzler::CreateSwizzler(swizzlerInfo, nullptr,
swizzlerDstInfo, options, nullptr, true));
SkASSERT(fSwizzler);
}
SkSampler* SkHeifCodec::getSampler(bool createIfNecessary) {
if (!createIfNecessary || fSwizzler) {
SkASSERT(!fSwizzler || (fSwizzleSrcRow && fStorage.get() == fSwizzleSrcRow));
return fSwizzler.get();
}
this->initializeSwizzler(this->dstInfo(), this->options());
this->allocateStorage(this->dstInfo());
return fSwizzler.get();
}
SkCodec::Result SkHeifCodec::onStartScanlineDecode(
const SkImageInfo& dstInfo, const Options& options) {
if (!this->initializeColorXform(dstInfo, options.fPremulBehavior)) {
return kInvalidConversion;
}
// Check if we can decode to the requested destination and set the output color space
if (!this->setOutputColorFormat(dstInfo)) {
return kInvalidConversion;
}
// TODO: For now, just decode the whole thing even when there is a subset.
// If the heif image has tiles, we could potentially do this much faster,
// but the tile configuration needs to be retrieved from the metadata.
if (!fHeifDecoder->decode(fFrameInfo.get())) {
return kInvalidInput;
}
this->allocateStorage(dstInfo);
return kSuccess;
}
int SkHeifCodec::onGetScanlines(void* dst, int count, size_t dstRowBytes) {
return this->readRows(this->dstInfo(), dst, dstRowBytes, count, this->options());
}
bool SkHeifCodec::onSkipScanlines(int count) {
return count == (int) fHeifDecoder->skipScanlines(count);
}

108
src/codec/SkHeifCodec.h
View File

@ -1,108 +0,0 @@
/*
* Copyright 2017 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SkHeifCodec_DEFINED
#define SkHeifCodec_DEFINED
#include "SkCodec.h"
#include "SkColorSpace.h"
#include "SkColorSpaceXform.h"
#include "SkImageInfo.h"
#include "SkSwizzler.h"
#include "SkStream.h"
struct HeifFrameInfo;
struct HeifDecoder;
/*
*
* This class implements the decoding for heif images.
*
*/
class SkHeifCodec : public SkCodec {
public:
static bool IsHeif(const void*, size_t);
/*
* Assumes IsHeif was called and returned true.
* Creates a heif decoder and takes ownership of the stream.
*/
static std::unique_ptr<SkCodec> MakeFromStream(std::unique_ptr<SkStream>, Result*);
protected:
Result onGetPixels(
const SkImageInfo& dstInfo,
void* dst, size_t dstRowBytes,
const Options& options,
int* rowsDecoded) override;
SkEncodedImageFormat onGetEncodedFormat() const override {
return SkEncodedImageFormat::kHEIF;
}
private:
/*
* Read enough of the stream to initialize the SkHeifCodec.
* Returns a bool representing success or failure.
*
* @param codecOut
* If this returns true, and codecOut was not nullptr,
* codecOut will be set to a new SkHeifCodec.
*
* @param stream
* Deleted on failure.
* codecOut will take ownership of it in the case where we created a codec.
*/
static Result ReadHeader(SkStream* stream, SkCodec** codecOut);
/*
* Creates an instance of the decoder
* Called only by NewFromStream
*/
SkHeifCodec(int width, int height, const SkEncodedInfo&,
HeifDecoder*, sk_sp<SkColorSpace>, Origin);
/*
* Checks if the conversion between the input image and the requested output
* image has been implemented.
*
* Sets the output color format.
*/
bool setOutputColorFormat(const SkImageInfo& dst);
void initializeSwizzler(const SkImageInfo& dstInfo, const Options& options);
void allocateStorage(const SkImageInfo& dstInfo);
int readRows(const SkImageInfo& dstInfo, void* dst,
size_t rowBytes, int count, const Options&);
/*
* Scanline decoding.
*/
SkSampler* getSampler(bool createIfNecessary) override;
Result onStartScanlineDecode(const SkImageInfo& dstInfo,
const Options& options) override;
int onGetScanlines(void* dst, int count, size_t rowBytes) override;
bool onSkipScanlines(int count) override;
std::unique_ptr<HeifDecoder> fHeifDecoder;
std::unique_ptr<HeifFrameInfo> fFrameInfo;
SkAutoTMalloc<uint8_t> fStorage;
uint8_t* fSwizzleSrcRow;
uint32_t* fColorXformSrcRow;
// In the case that heif decoder cannot take the exact the subset that
// we need, we will use the swizzler to further subset the output.
SkIRect fSwizzlerSubset;
std::unique_ptr<SkSwizzler> fSwizzler;
typedef SkCodec INHERITED;
};
#endif // SkHeifCodec_DEFINED

2
src/codec/SkWebpCodec.h
View File

@ -23,6 +23,8 @@ extern "C" {
void WebPDemuxDelete(WebPDemuxer* dmux);
}
static const size_t WEBP_VP8_HEADER_SIZE = 30;
class SkWebpCodec final : public SkCodec {
public:
// Assumes IsWebp was called and returned true.

6
tests/CodecTest.cpp
View File

@ -919,8 +919,8 @@ DEF_TEST(Codec_wbmp_restrictive, r) {
// wbmp images have a header that can be arbitrarily large, depending on the
// size of the image. We cap the size at 65535, meaning we only need to look at
// 8 bytes to determine whether we can read the image. This is important
// because SkCodec only passes a limited number of bytes to SkWbmpCodec to
// determine whether the image is a wbmp.
// because SkCodec only passes 14 bytes to SkWbmpCodec to determine whether the
// image is a wbmp.
DEF_TEST(Codec_wbmp_max_size, r) {
const unsigned char maxSizeWbmp[] = { 0x00, 0x00, // Header
0x83, 0xFF, 0x7F, // W: 65535
@ -1277,7 +1277,7 @@ DEF_TEST(Codec_fallBack, r) {
"randPixels.bmp",
};
for (auto file : files) {
auto stream = LimitedRewindingStream::Make(file, SkCodec::MinBufferedBytesNeeded());
auto stream = LimitedRewindingStream::Make(file, 14);
if (!stream) {
SkDebugf("Missing resources (%s). Set --resourcePath.\n", file);
return;