vrdop

package

v0.0.0-...-df3f4e6 Latest Latest Go to latest Published: Aug 8, 2023 License: BSD-3-Clause Imports: 6 Imported by: 0

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Repository

git.sr.ht/~sbinet/varda

Links

Open Source Insights

Documentation ¶

Overview ¶

Package vrdop provides tools to efficiently represent image operations.

Index ¶

func Encode(ops ...Op) []byte
func Transform(src image.Image, ops []Op) image.Image
type Brightness
- func (op *Brightness) Decode(p []byte)
- func (op *Brightness) Encode(p []byte)
- func (Brightness) Kind() Kind
- func (Brightness) Len() uint32
type Color
- func (op *Color) Decode(p []byte)
- func (op *Color) Encode(p []byte)
- func (Color) Kind() Kind
- func (Color) Len() uint32
type Contrast
- func (op *Contrast) Decode(p []byte)
- func (op *Contrast) Encode(p []byte)
- func (Contrast) Kind() Kind
- func (Contrast) Len() uint32
type Crop
- func (op *Crop) Decode(p []byte)
- func (op *Crop) Encode(p []byte)
- func (Crop) Kind() Kind
- func (Crop) Len() uint32
type FlipH
- func (*FlipH) Decode(p []byte)
- func (*FlipH) Encode(p []byte)
- func (FlipH) Kind() Kind
- func (FlipH) Len() uint32
type FlipV
- func (*FlipV) Decode(p []byte)
- func (*FlipV) Encode(p []byte)
- func (FlipV) Kind() Kind
- func (FlipV) Len() uint32
type Gamma
- func (op *Gamma) Decode(p []byte)
- func (op *Gamma) Encode(p []byte)
- func (Gamma) Kind() Kind
- func (Gamma) Len() uint32
type Gray
- func (Gray) Decode(p []byte)
- func (Gray) Encode(p []byte)
- func (Gray) Kind() Kind
- func (Gray) Len() uint32
type Hue
- func (op *Hue) Decode(p []byte)
- func (op *Hue) Encode(p []byte)
- func (Hue) Kind() Kind
- func (Hue) Len() uint32
type ID
- func (*ID) Decode(p []byte)
- func (*ID) Encode(p []byte)
- func (ID) Kind() Kind
- func (ID) Len() uint32
type Kind
type Op
- func Decode(p []byte) ([]Op, error)
- func FromOrientation(ori uint8) []Op
type Rotate
- func (op *Rotate) Decode(p []byte)
- func (op *Rotate) Encode(p []byte)
- func (Rotate) Kind() Kind
- func (Rotate) Len() uint32
type Saturation
- func (op *Saturation) Decode(p []byte)
- func (op *Saturation) Encode(p []byte)
- func (Saturation) Kind() Kind
- func (Saturation) Len() uint32
type Sepia
- func (op *Sepia) Decode(p []byte)
- func (op *Sepia) Encode(p []byte)
- func (Sepia) Kind() Kind
- func (Sepia) Len() uint32

Constants ¶

This section is empty.

Variables ¶

This section is empty.

Functions ¶

func Encode ¶

func Encode(ops ...Op) []byte

Encode encodes a slice of operations into a vrdop operation buffer.

func Transform ¶

func Transform(src image.Image, ops []Op) image.Image

Types ¶

type Brightness ¶

type Brightness struct {
	V float32 `json:"percent"`
}

func (*Brightness) Decode ¶

func (op *Brightness) Decode(p []byte)

func (*Brightness) Encode ¶

func (op *Brightness) Encode(p []byte)

func (Brightness) Kind ¶

func (Brightness) Kind() Kind

func (Brightness) Len ¶

func (Brightness) Len() uint32

type Color ¶

type Color struct {
	R float32 `json:"r"`
	G float32 `json:"g"`
	B float32 `json:"b"`
}

func (*Color) Decode ¶

func (op *Color) Decode(p []byte)

func (*Color) Encode ¶

func (op *Color) Encode(p []byte)

func (Color) Kind ¶

func (Color) Kind() Kind

func (Color) Len ¶

func (Color) Len() uint32

type Contrast ¶

type Contrast struct {
	V float32 `json:"percent"`
}

func (*Contrast) Decode ¶

func (op *Contrast) Decode(p []byte)

func (*Contrast) Encode ¶

func (op *Contrast) Encode(p []byte)

func (Contrast) Kind ¶

func (Contrast) Kind() Kind

func (Contrast) Len ¶

func (Contrast) Len() uint32

type Crop ¶

type Crop struct {
	Rect image.Rectangle `json:"rect"`
}

func (*Crop) Decode ¶

func (op *Crop) Decode(p []byte)

func (*Crop) Encode ¶

func (op *Crop) Encode(p []byte)

func (Crop) Kind ¶

func (Crop) Kind() Kind

func (Crop) Len ¶

func (Crop) Len() uint32

type FlipH ¶

type FlipH struct{}

func (*FlipH) Decode ¶

func (*FlipH) Decode(p []byte)

func (*FlipH) Encode ¶

func (*FlipH) Encode(p []byte)

func (FlipH) Kind ¶

func (FlipH) Kind() Kind

func (FlipH) Len ¶

func (FlipH) Len() uint32

type FlipV ¶

type FlipV struct{}

func (*FlipV) Decode ¶

func (*FlipV) Decode(p []byte)

func (*FlipV) Encode ¶

func (*FlipV) Encode(p []byte)

func (FlipV) Kind ¶

func (FlipV) Kind() Kind

func (FlipV) Len ¶

func (FlipV) Len() uint32

type Gamma ¶

type Gamma struct {
	V float32 `json:"percent"`
}

func (*Gamma) Decode ¶

func (op *Gamma) Decode(p []byte)

func (*Gamma) Encode ¶

func (op *Gamma) Encode(p []byte)

func (Gamma) Kind ¶

func (Gamma) Kind() Kind

func (Gamma) Len ¶

func (Gamma) Len() uint32

type Gray ¶

type Gray struct{}

func (Gray) Decode ¶

func (Gray) Decode(p []byte)

func (Gray) Encode ¶

func (Gray) Encode(p []byte)

func (Gray) Kind ¶

func (Gray) Kind() Kind

func (Gray) Len ¶

func (Gray) Len() uint32

type Hue ¶

type Hue struct {
	V float32 `json:"percent"`
}

func (*Hue) Decode ¶

func (op *Hue) Decode(p []byte)

func (*Hue) Encode ¶

func (op *Hue) Encode(p []byte)

func (Hue) Kind ¶

func (Hue) Kind() Kind

func (Hue) Len ¶

func (Hue) Len() uint32

type ID ¶

type ID struct{}

func (*ID) Decode ¶

func (*ID) Decode(p []byte)

func (*ID) Encode ¶

func (*ID) Encode(p []byte)

func (ID) Kind ¶

func (ID) Kind() Kind

func (ID) Len ¶

func (ID) Len() uint32

type Kind ¶

type Kind uint8

const (
	OpIdentity Kind = iota
	OpRotate
	OpFlipV
	OpFlipH
	OpCrop
	OpColor
	OpBrightness
	OpContrast
	OpGamma
	OpGray
	OpHue
	OpSaturation
	OpSepia
)

type Op ¶

type Op interface {
	Kind() Kind
	Len() uint32
	Encode(p []byte)
	Decode(p []byte)
	// contains filtered or unexported methods
}

func Decode ¶

func Decode(p []byte) ([]Op, error)

Decode decodes a vrdop operation buffer into a slice of operations.

func FromOrientation ¶

func FromOrientation(ori uint8) []Op

FromOrientation converts an EXIF orientation meta data into a set of vrdop operations.

type Rotate ¶

type Rotate struct {
	Angle float32 `json:"angle"`
}

func (*Rotate) Decode ¶

func (op *Rotate) Decode(p []byte)

func (*Rotate) Encode ¶

func (op *Rotate) Encode(p []byte)

func (Rotate) Kind ¶

func (Rotate) Kind() Kind

func (Rotate) Len ¶

func (Rotate) Len() uint32

type Saturation ¶

type Saturation struct {
	V float32 `json:"percent"`
}

func (*Saturation) Decode ¶

func (op *Saturation) Decode(p []byte)

func (*Saturation) Encode ¶

func (op *Saturation) Encode(p []byte)

func (Saturation) Kind ¶

func (Saturation) Kind() Kind

func (Saturation) Len ¶

func (Saturation) Len() uint32

type Sepia ¶

type Sepia struct {
	V float32 `json:"percent"`
}

func (*Sepia) Decode ¶

func (op *Sepia) Decode(p []byte)

func (*Sepia) Encode ¶

func (op *Sepia) Encode(p []byte)

func (Sepia) Kind ¶

func (Sepia) Kind() Kind

func (Sepia) Len ¶

func (Sepia) Len() uint32

Source Files ¶

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