imgio

package module
v0.0.0-...-3aa6cc5 Latest Latest
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 Go to latest Published: Feb 11, 2021 License: MIT Imports: 7 Imported by: 0

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Image IO Build Status Go Report Card

Documentation

Index

Constants

View Source 
const GentlePoint16Capacity = 2
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const PointReadWriterRGBASimpleCapacity = 1
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const PointReadWriterYCbCrSimpleCapacity = 1
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const SimplePoint32Capacity = 4
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const SimplePoint64Capacity = 8
View Source 
const SmartPoint8Capacity = 1

Variables

View Source 
var ErrImageReadWriterYCbCrOverflow = errors.New("Overflow")
View Source 
var ErrOverflow = errors.New("Overflow")

Functions

func NewImage 

func NewImage(img draw.Image, gen PointsSequenceGenerator, prw PointReadWriter) *rwImage

Types

type GentlePoint16ReadWriter 

type GentlePoint16ReadWriter struct{}

func (GentlePoint16ReadWriter) Read 

func (GentlePoint16ReadWriter) Read(start int, c color.Color, p image.Point) ([]byte, int)

func (GentlePoint16ReadWriter) Size 

func (GentlePoint16ReadWriter) Size(_ image.Point) int64

func (GentlePoint16ReadWriter) Write 

func (GentlePoint16ReadWriter) Write(b []byte, start int, src color.Color, p image.Point) (color.Color, int)

type Image 

type Image interface {
	io.ReadWriteSeeker
}

type ImageGroup 

type ImageGroup struct {
	// contains filtered or unexported fields
}

func NewImageGroup 

func NewImageGroup(images ...*rwImage) *ImageGroup

func (*ImageGroup) Read 

func (ig *ImageGroup) Read(p []byte) (n int, err error)

Read implements io.Reader interface

func (*ImageGroup) Rewind 

func (ig *ImageGroup) Rewind()

func (*ImageGroup) Size 

func (ig *ImageGroup) Size() (size int64)

func (*ImageGroup) Write 

func (ig *ImageGroup) Write(p []byte) (n int, err error)

Write implements io.Writer interface

type ImageReadWriterYCbCr 

type ImageReadWriterYCbCr struct {
	// contains filtered or unexported fields
}

func NewImageReadWriterYCbCr 

func NewImageReadWriterYCbCr(img *image.YCbCr, gen PointsSequenceGenerator, prw PointReadWriterYCbCr) *ImageReadWriterYCbCr

func (*ImageReadWriterYCbCr) At 

func (i *ImageReadWriterYCbCr) At(x, y int) color.Color

At implements image.Image interface

func (*ImageReadWriterYCbCr) Bounds 

func (i *ImageReadWriterYCbCr) Bounds() image.Rectangle

Bounds implements image.Image interface

func (*ImageReadWriterYCbCr) ColorModel 

func (i *ImageReadWriterYCbCr) ColorModel() color.Model

ColorModel implements image.Image interface

func (*ImageReadWriterYCbCr) Read 

func (i *ImageReadWriterYCbCr) Read(p []byte) (n int, err error)

Read implements io.Reader interface

func (*ImageReadWriterYCbCr) Seek 

func (i *ImageReadWriterYCbCr) Seek(offset int64, whence int) (int64, error)

func (*ImageReadWriterYCbCr) Size 

func (i *ImageReadWriterYCbCr) Size() (size int64)

func (*ImageReadWriterYCbCr) Write 

func (i *ImageReadWriterYCbCr) Write(p []byte) (n int, err error)

Write implements io.Writer interface

type PointReadWriter 

type PointReadWriter interface {
	// Read reads bytes from color c from position start on point p
	Read(start int, c color.Color, p image.Point) ([]byte, int)
	// Write writes bytes b into color c starts on position start on point p and returns number of written bytes
	Write(b []byte, start int, c color.Color, p image.Point) (color.Color, int)
	// Return number of bytes possible to be written to point p on current image
	Size(p image.Point) int64
}

type PointReadWriterRGBA 

type PointReadWriterRGBA interface {
	Read(start int, c color.RGBA, p image.Point) ([]byte, int)
	Write(b []byte, start int, src color.RGBA, p image.Point) (color.RGBA, int)
	Size(p image.Point) int64
}

type PointReadWriterRGBASimple 

type PointReadWriterRGBASimple struct{}

func (PointReadWriterRGBASimple) Read 

func (PointReadWriterRGBASimple) Read(start int, c color.RGBA, p image.Point) ([]byte, int)

func (PointReadWriterRGBASimple) Size 

func (PointReadWriterRGBASimple) Size(_ image.Point) int64

func (PointReadWriterRGBASimple) Write 

func (PointReadWriterRGBASimple) Write(b []byte, start int, src color.RGBA, p image.Point) (color.RGBA, int)

type PointReadWriterYCbCr 

type PointReadWriterYCbCr interface {
	Read(start int, c color.YCbCr, p image.Point) ([]byte, int)
	Write(b []byte, start int, src color.YCbCr, p image.Point) (color.YCbCr, int)
	Size(p image.Point) int64
}

type PointReadWriterYCbCrSimple 

type PointReadWriterYCbCrSimple struct {
	Y uint8
}

func (PointReadWriterYCbCrSimple) Read 

func (PointReadWriterYCbCrSimple) Read(start int, c color.YCbCr, p image.Point) ([]byte, int)

func (PointReadWriterYCbCrSimple) Size 

func (PointReadWriterYCbCrSimple) Size(_ image.Point) int64

func (PointReadWriterYCbCrSimple) Write 

func (prw PointReadWriterYCbCrSimple) Write(b []byte, start int, src color.YCbCr, p image.Point) (color.YCbCr, int)

type PointsSequenceGenerator 

type PointsSequenceGenerator interface {
	Current() image.Point
	Next()
	Rewind()
	Valid() bool
	Seek(offset uint64)
}

type RandPointsSequenceGenerator 

type RandPointsSequenceGenerator struct {
}

func (*RandPointsSequenceGenerator) Current 

func (rpsg *RandPointsSequenceGenerator) Current() image.Point

func (*RandPointsSequenceGenerator) Next 

func (rpsg *RandPointsSequenceGenerator) Next()

func (*RandPointsSequenceGenerator) Rewind 

func (rpsg *RandPointsSequenceGenerator) Rewind()

func (*RandPointsSequenceGenerator) Seek 

func (rpsg *RandPointsSequenceGenerator) Seek(offset uint64)

func (*RandPointsSequenceGenerator) Valid 

func (rpsg *RandPointsSequenceGenerator) Valid() bool

type SimplePoint32ReadWriter 

type SimplePoint32ReadWriter struct{}

func (SimplePoint32ReadWriter) Read 

func (SimplePoint32ReadWriter) Read(start int, c color.Color, p image.Point) ([]byte, int)

func (SimplePoint32ReadWriter) Size 

func (SimplePoint32ReadWriter) Size(_ image.Point) int64

func (SimplePoint32ReadWriter) Write 

func (SimplePoint32ReadWriter) Write(b []byte, start int, src color.Color, p image.Point) (color.Color, int)

type SimplePoint64ReadWriter 

type SimplePoint64ReadWriter struct{}

func (SimplePoint64ReadWriter) Read 

func (SimplePoint64ReadWriter) Read(start int, c color.Color, p image.Point) ([]byte, int)

func (SimplePoint64ReadWriter) Size 

func (SimplePoint64ReadWriter) Size(_ image.Point) int64

func (SimplePoint64ReadWriter) Write 

func (SimplePoint64ReadWriter) Write(b []byte, start int, src color.Color, p image.Point) (color.Color, int)

type SimplePointsSequenceGenerator 

type SimplePointsSequenceGenerator struct {
	// contains filtered or unexported fields
}

func NewSimplePointsSequenceGenerator 

func NewSimplePointsSequenceGenerator(rect image.Rectangle) *SimplePointsSequenceGenerator

func (*SimplePointsSequenceGenerator) Current 

func (spsg *SimplePointsSequenceGenerator) Current() image.Point

func (*SimplePointsSequenceGenerator) Next 

func (spsg *SimplePointsSequenceGenerator) Next()

func (*SimplePointsSequenceGenerator) Rewind 

func (spsg *SimplePointsSequenceGenerator) Rewind()

func (*SimplePointsSequenceGenerator) Seek 

func (spsg *SimplePointsSequenceGenerator) Seek(offset uint64)

func (*SimplePointsSequenceGenerator) Valid 

func (spsg *SimplePointsSequenceGenerator) Valid() bool

type SmartPoint8ReadWriter 

type SmartPoint8ReadWriter struct{}

func (SmartPoint8ReadWriter) Read 

func (SmartPoint8ReadWriter) Read(start int, c color.Color, p image.Point) ([]byte, int)

func (SmartPoint8ReadWriter) Size 

func (SmartPoint8ReadWriter) Size(_ image.Point) int64

func (SmartPoint8ReadWriter) Write 

func (SmartPoint8ReadWriter) Write(b []byte, start int, src color.Color, p image.Point) (color.Color, int)

type Storage 

type Storage interface {
	io.ReadWriteSeeker
}

Source Files

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Directories

Path Synopsis
cmd
imgio

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