SkJpegMemorySourceMgr Class Reference

Inheritance diagram for SkJpegMemorySourceMgr:

Public Member Functions
	SkJpegMemorySourceMgr (SkStream *stream)
	~SkJpegMemorySourceMgr () override
void	initSource (const uint8_t *&nextInputByte, size_t &bytesInBuffer) override
bool	fillInputBuffer (const uint8_t *&nextInputByte, size_t &bytesInBuffer) override
bool	skipInputBytes (size_t bytesToSkip, const uint8_t *&nextInputByte, size_t &bytesInBuffer) override
Public Member Functions inherited from SkJpegSourceMgr
virtual	~SkJpegSourceMgr ()
virtual void	initSource (const uint8_t *&nextInputByte, size_t &bytesInBuffer)=0
virtual bool	fillInputBuffer (const uint8_t *&nextInputByte, size_t &bytesInBuffer)=0
virtual bool	skipInputBytes (size_t bytes, const uint8_t *&nextInputByte, size_t &bytesInBuffer)=0

Additional Inherited Members
Static Public Member Functions inherited from SkJpegSourceMgr
static std::unique_ptr< SkJpegSourceMgr >	Make (SkStream *stream, size_t bufferSize=1024)
Protected Member Functions inherited from SkJpegSourceMgr
	SkJpegSourceMgr (SkStream *stream)
Protected Attributes inherited from SkJpegSourceMgr
SkStream *const	fStream

Detailed Description

Definition at line 51 of file SkJpegSourceMgr.cpp.

Constructor & Destructor Documentation

SkJpegMemorySourceMgr()

SkJpegMemorySourceMgr::SkJpegMemorySourceMgr ( SkStream *  stream )

inline

Definition at line 53 of file SkJpegSourceMgr.cpp.

: SkJpegSourceMgr(stream) {}

~SkJpegMemorySourceMgr()

SkJpegMemorySourceMgr::~SkJpegMemorySourceMgr ( )

inlineoverride

Definition at line 54 of file SkJpegSourceMgr.cpp.

{}

Member Function Documentation

fillInputBuffer()

bool SkJpegMemorySourceMgr::fillInputBuffer ( const uint8_t *&  nextInputByte, size_t &  bytesInBuffer  )

inlineoverridevirtual

Implements SkJpegSourceMgr.

Definition at line 60 of file SkJpegSourceMgr.cpp.

                                                                                        {
        // The whole JPEG data is expected to reside in the supplied memory buffer, so any request
        // for more data beyond the given buffer size is treated as an error.
        SkCodecPrintf("Asked to re-fill a memory-mapped stream.\n");
        return false;
    }

initSource()

void SkJpegMemorySourceMgr::initSource ( const uint8_t *&  nextInputByte, size_t &  bytesInBuffer  )

inlineoverridevirtual

Implements SkJpegSourceMgr.

Definition at line 56 of file SkJpegSourceMgr.cpp.

                                                                                   {
        nextInputByte = reinterpret_cast<const uint8_t*>(fStream->getMemoryBase());
        bytesInBuffer = static_cast<size_t>(fStream->getLength());
    }

skipInputBytes()

bool SkJpegMemorySourceMgr::skipInputBytes ( size_t  bytesToSkip, const uint8_t *&  nextInputByte, size_t &  bytesInBuffer  )

inlineoverridevirtual

Implements SkJpegSourceMgr.

Definition at line 66 of file SkJpegSourceMgr.cpp.

                                                        {
        if (bytesToSkip > bytesInBuffer) {
            SkCodecPrintf("Asked to read past end of a memory-mapped stream.\n");
            return false;
        }
        nextInputByte += bytesToSkip;
        bytesInBuffer -= bytesToSkip;
        return true;
    }

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The documentation for this class was generated from the following file:

• third_party/skia/src/codec/SkJpegSourceMgr.cpp