encoderimage

Documentation

Index

• Constants
• func DataToImage(in []byte, option EncoderImageOption) (image.Image, error)
• func ImageToData(img image.Image) ([]byte, error)
• func NewBmp(mode EncoderMode, option encodercommon.EncoderOption) (encodercommon.EncoderPlugin, error)
• func NewGif(mode EncoderMode, option encodercommon.EncoderOption) (encodercommon.EncoderPlugin, error)
• func NewPng(mode EncoderMode, option encodercommon.EncoderOption) (encodercommon.EncoderPlugin, error)
• func WithEncoderNewFunc(mode EncoderMode, ...) func(options ...encodercommon.Option) (encodercommon.EncoderPlugin, error)
• type Bmp
  • func (*Bmp) Decode(in []byte) ([]byte, error)
  • func (b *Bmp) Encode(in []byte) ([]byte, error)
  • func (*Bmp) Mime() string
  • func (*Bmp) Type() string
• type EncoderImageOption
• type EncoderMode
• type Gif
  • func (*Gif) Decode(in []byte) ([]byte, error)
  • func (f *Gif) Encode(in []byte) ([]byte, error)
  • func (*Gif) Mime() string
  • func (*Gif) Type() string
• type Png
  • func (*Png) Decode(in []byte) ([]byte, error)
  • func (p *Png) Encode(in []byte) ([]byte, error)
  • func (*Png) Mime() string
  • func (*Png) Type() string

Constants

const (
	BMP         = "bmp"
	BMPRGB      = "bmprgb"
	BMPRGBA     = "bmprgba"
	BMPPALETTED = "bmppaletted"
	BMPGRAY     = "bmpgray"
)

const (
	GIF         = "gif"
	GIFPALETTED = "gifpaletted"
)

const (
	PNG         = "png"
	PNGRGB      = "pngrgb"
	PNGRGBA     = "pngrgba"
	PNGPALETTED = "pngpaletted"
	PNGGRAY     = "pnggray"
)

Functions

func DataToImage

func DataToImage(in []byte, option EncoderImageOption) (image.Image, error)

func ImageToData

func ImageToData(img image.Image) ([]byte, error)

func NewBmp

func NewBmp(mode EncoderMode, option encodercommon.EncoderOption) (encodercommon.EncoderPlugin, error)

func NewGif

func NewGif(mode EncoderMode, option encodercommon.EncoderOption) (encodercommon.EncoderPlugin, error)

func NewPng

func NewPng(mode EncoderMode, option encodercommon.EncoderOption) (encodercommon.EncoderPlugin, error)

func WithEncoderNewFunc

func WithEncoderNewFunc(mode EncoderMode, f func(mode EncoderMode, option encodercommon.EncoderOption) (encodercommon.EncoderPlugin, error)) func(options ...encodercommon.Option) (encodercommon.EncoderPlugin, error)

Types

type Bmp

type Bmp struct {
	EncoderImageOption
	// contains filtered or unexported fields
}

func (*Bmp) Decode

func (*Bmp) Decode(in []byte) ([]byte, error)

func (*Bmp) Encode

func (b *Bmp) Encode(in []byte) ([]byte, error)

func (*Bmp) Mime

func (*Bmp) Mime() string

func (*Bmp) Type

func (*Bmp) Type() string

type EncoderImageOption

type EncoderImageOption struct {
	encodercommon.EncoderOption
	Mode EncoderMode
}

type EncoderMode

type EncoderMode uint8

const (
	RGB      EncoderMode = iota //24位
	RGBA                        //32位
	Paletted                    //8位
	Gray                        //灰度图
)

图片模式

type Gif

type Gif struct {
	EncoderImageOption
	// contains filtered or unexported fields
}

func (*Gif) Decode

func (*Gif) Decode(in []byte) ([]byte, error)

func (*Gif) Encode

func (f *Gif) Encode(in []byte) ([]byte, error)

func (*Gif) Mime

func (*Gif) Mime() string

func (*Gif) Type

func (*Gif) Type() string

type Png

type Png struct {
	EncoderImageOption
	// contains filtered or unexported fields
}

func (*Png) Decode

func (*Png) Decode(in []byte) ([]byte, error)

解码

func (*Png) Encode

func (p *Png) Encode(in []byte) ([]byte, error)

编码

func (*Png) Mime

func (*Png) Mime() string

func (*Png) Type

func (*Png) Type() string