rez

type ChromaRatio int

type Converter interface {
	// Converts one image into another, applying any necessary colorspace
	// conversion and/or resizing
	// dst = destination image
	// src = source image
	// Result is undefined if src points to the same data as dst
	// Returns an error if the conversion fails
	Convert(dst, src image.Image) error
}

type ConverterConfig struct {
	Input      Descriptor // input description
	Output     Descriptor // output description
	Threads    int        // number of allowed "threads"
	DisableAsm bool       // disable asm optimisations
}

type Descriptor struct {
	Width      int         // width in pixels
	Height     int         // height in pixels
	Ratio      ChromaRatio // chroma ratio
	Pack       int         // pixels per pack
	Interlaced bool        // progressive or interlaced
	Planes     int         // number of planes
}

type Filter interface {
	Taps() int
	Name() string
	Get(dx float64) float64
}

type Plane struct {
	Data   []byte // plane buffer
	Width  int    // width in pixels
	Height int    // height in pixels
	Pitch  int    // pitch in bytes
	Pack   int    // pixels per pack
}

type Resizer interface {
	// Resize one plane into another
	// dst, src = destination and source buffer
	// width, height = plane dimensions in pixels
	// dstPitch, srcPitch = destination and source pitchs/strides in bytes
	Resize(dst, src []byte, width, height, dstPitch, srcPitch int)
}

type ResizerConfig struct {
	Depth      int  // bits per pixel
	Input      int  // input size in pixels
	Output     int  // output size in pixels
	Vertical   bool // true for vertical resizes
	Interlaced bool // true if input/output is interlaced
	Pack       int  // pixels per pack [default=1]
	Threads    int  // number of threads, [default=0]
	DisableAsm bool // disable asm optimisations
}