SkJpegDecoder Namespace Reference

Functions
SK_API bool	IsJpeg (const void *, size_t)
SK_API std::unique_ptr< SkCodec >	Decode (std::unique_ptr< SkStream >, SkCodec::Result *, SkCodecs::DecodeContext=nullptr)
SK_API std::unique_ptr< SkCodec >	Decode (sk_sp< SkData >, SkCodec::Result *, SkCodecs::DecodeContext=nullptr)
constexpr SkCodecs::Decoder	Decoder ()

Function Documentation

Decode() [1/2]

std::unique_ptr< SkCodec > SkJpegDecoder::Decode	(	sk_sp< SkData >	data,
		SkCodec::Result *	outResult,
		SkCodecs::DecodeContext	= nullptr
	)

Definition at line 944 of file SkJpegCodec.cpp.

                                                       {
    if (!data) {
        if (outResult) {
            *outResult = SkCodec::kInvalidInput;
        }
        return nullptr;
    }
    return Decode(SkMemoryStream::Make(std::move(data)), outResult, nullptr);
}

Decode() [2/2]

std::unique_ptr< SkCodec > SkJpegDecoder::Decode	(	std::unique_ptr< SkStream >	stream,
		SkCodec::Result *	outResult,
		SkCodecs::DecodeContext	= nullptr
	)

Attempts to decode the given bytes as a JPEG.

If the bytes are not a JPEG, returns nullptr.

DecodeContext is ignored

Definition at line 934 of file SkJpegCodec.cpp.

                                                       {
    SkCodec::Result resultStorage;
    if (!outResult) {
        outResult = &resultStorage;
    }
    return SkJpegCodec::MakeFromStream(std::move(stream), outResult);
}

Decoder()

constexpr SkCodecs::Decoder SkJpegDecoder::Decoder ( )

inlineconstexpr

Definition at line 38 of file SkJpegDecoder.h.

                                           {
    return { "jpeg", IsJpeg, Decode };
}

IsJpeg()

bool SkJpegDecoder::IsJpeg	(	const void *	data,
		size_t	len
	)

Returns true if this data claims to be a JPEG image.

Definition at line 930 of file SkJpegCodec.cpp.

                                          {
    return SkJpegCodec::IsJpeg(data, len);
}