psd

type AdditionalInfo struct {
	Key  string
	Data []byte
}

type BlendModeKey string

type BlendingRanges struct {
	CompositeGrayBlend *BlendingRangesData
	Channels           []*BlendingRangesData
}

type BlendingRangesData struct {
	Source      int
	Destination int
}

type Channel struct {
	ID     int
	Length int
}

type Clipping byte

type ColorMode int

type ColorModeData struct {
	Data []byte
}

type GlobalLayerMask struct {
	OverlayColor    int
	ColorComponents []byte
	Opacity         int
	Kind            int
	Fillers         int
}

type Header struct {
	Version   int
	Channels  int
	Height    int
	Width     int
	Depth     int
	ColorMode ColorMode
}

type Image interface {
	image.Image
	Source(rect image.Rectangle, src ...[]byte)
}

type ImageResourceBlock struct {
	ID   int
	Name string
	Data []byte
}

type Layer struct {
	Index int
	ID    int

	LegacyName string
	Name       string

	Rect  image.Rectangle
	Image image.Image

	Channels     []*Channel
	BlendModeKey BlendModeKey
	Opacity      int
	Clipping     Clipping
	Flags        byte
	Filler       byte

	TransparencyProtected bool
	Visible               bool
	Obsolete              bool
	IrrelevantPixelData   bool

	Mask            *Mask
	BlendingRanges  *BlendingRanges
	AdditionalInfos []*AdditionalInfo
}

type Mask struct {
	Rect image.Rectangle

	DefaultColor byte
	Flags        byte

	Padding []byte

	RealFlags         *byte
	RealBackground    *byte
	RectEnclosingMask *image.Rectangle
}

type PSD struct {
	Header          *Header
	ColorModeData   *ColorModeData
	ImageResources  []*ImageResourceBlock
	Layers          []*Layer
	GlobalLayerMask *GlobalLayerMask
	AdditionalInfos []*AdditionalInfo
	Image           image.Image
}