package canvas

import "io"
import "image"

// Texture is a handle that points to a 2D raster image managed by the backend.
type Texture interface {
	image.Image

	// SubTexture returns a returns a Texture representing the portion of
	// this Texture visible through a rectangle. The returned value shares
	// pixels with the original Texture.
	SubTexture (image.Rectangle) Texture
}

// TextureCloser is a texture that can be closed. Anything that receives a
// TextureCloser must close it after use.
type TextureCloser interface {
	Texture
	io.Closer
}