Switch to Go modules and make other changes

1 files changed, 0 insertions, 247 deletions

diff --git a/vendor/github.com/disintegration/imaging/tools.go b/vendor/github.com/disintegration/imaging/tools.go
deleted file mode 100644
index 7887946..0000000
--- a/vendor/github.com/disintegration/imaging/tools.go
+++ /dev/null
@@ -1,247 +0,0 @@
-package imaging
-
-import (
-	"bytes"
-	"image"
-	"image/color"
-	"math"
-)
-
-// New creates a new image with the specified width and height, and fills it with the specified color.
-func New(width, height int, fillColor color.Color) *image.NRGBA {
-	if width <= 0 || height <= 0 {
-		return &image.NRGBA{}
-	}
-
-	c := color.NRGBAModel.Convert(fillColor).(color.NRGBA)
-	if (c == color.NRGBA{0, 0, 0, 0}) {
-		return image.NewNRGBA(image.Rect(0, 0, width, height))
-	}
-
-	return &image.NRGBA{
-		Pix:    bytes.Repeat([]byte{c.R, c.G, c.B, c.A}, width*height),
-		Stride: 4 * width,
-		Rect:   image.Rect(0, 0, width, height),
-	}
-}
-
-// Clone returns a copy of the given image.
-func Clone(img image.Image) *image.NRGBA {
-	src := newScanner(img)
-	dst := image.NewNRGBA(image.Rect(0, 0, src.w, src.h))
-	size := src.w * 4
-	parallel(0, src.h, func(ys <-chan int) {
-		for y := range ys {
-			i := y * dst.Stride
-			src.scan(0, y, src.w, y+1, dst.Pix[i:i+size])
-		}
-	})
-	return dst
-}
-
-// Anchor is the anchor point for image alignment.
-type Anchor int
-
-// Anchor point positions.
-const (
-	Center Anchor = iota
-	TopLeft
-	Top
-	TopRight
-	Left
-	Right
-	BottomLeft
-	Bottom
-	BottomRight
-)
-
-func anchorPt(b image.Rectangle, w, h int, anchor Anchor) image.Point {
-	var x, y int
-	switch anchor {
-	case TopLeft:
-		x = b.Min.X
-		y = b.Min.Y
-	case Top:
-		x = b.Min.X + (b.Dx()-w)/2
-		y = b.Min.Y
-	case TopRight:
-		x = b.Max.X - w
-		y = b.Min.Y
-	case Left:
-		x = b.Min.X
-		y = b.Min.Y + (b.Dy()-h)/2
-	case Right:
-		x = b.Max.X - w
-		y = b.Min.Y + (b.Dy()-h)/2
-	case BottomLeft:
-		x = b.Min.X
-		y = b.Max.Y - h
-	case Bottom:
-		x = b.Min.X + (b.Dx()-w)/2
-		y = b.Max.Y - h
-	case BottomRight:
-		x = b.Max.X - w
-		y = b.Max.Y - h
-	default:
-		x = b.Min.X + (b.Dx()-w)/2
-		y = b.Min.Y + (b.Dy()-h)/2
-	}
-	return image.Pt(x, y)
-}
-
-// Crop cuts out a rectangular region with the specified bounds
-// from the image and returns the cropped image.
-func Crop(img image.Image, rect image.Rectangle) *image.NRGBA {
-	r := rect.Intersect(img.Bounds()).Sub(img.Bounds().Min)
-	if r.Empty() {
-		return &image.NRGBA{}
-	}
-	src := newScanner(img)
-	dst := image.NewNRGBA(image.Rect(0, 0, r.Dx(), r.Dy()))
-	rowSize := r.Dx() * 4
-	parallel(r.Min.Y, r.Max.Y, func(ys <-chan int) {
-		for y := range ys {
-			i := (y - r.Min.Y) * dst.Stride
-			src.scan(r.Min.X, y, r.Max.X, y+1, dst.Pix[i:i+rowSize])
-		}
-	})
-	return dst
-}
-
-// CropAnchor cuts out a rectangular region with the specified size
-// from the image using the specified anchor point and returns the cropped image.
-func CropAnchor(img image.Image, width, height int, anchor Anchor) *image.NRGBA {
-	srcBounds := img.Bounds()
-	pt := anchorPt(srcBounds, width, height, anchor)
-	r := image.Rect(0, 0, width, height).Add(pt)
-	b := srcBounds.Intersect(r)
-	return Crop(img, b)
-}
-
-// CropCenter cuts out a rectangular region with the specified size
-// from the center of the image and returns the cropped image.
-func CropCenter(img image.Image, width, height int) *image.NRGBA {
-	return CropAnchor(img, width, height, Center)
-}
-
-// Paste pastes the img image to the background image at the specified position and returns the combined image.
-func Paste(background, img image.Image, pos image.Point) *image.NRGBA {
-	dst := Clone(background)
-	pos = pos.Sub(background.Bounds().Min)
-	pasteRect := image.Rectangle{Min: pos, Max: pos.Add(img.Bounds().Size())}
-	interRect := pasteRect.Intersect(dst.Bounds())
-	if interRect.Empty() {
-		return dst
-	}
-	src := newScanner(img)
-	parallel(interRect.Min.Y, interRect.Max.Y, func(ys <-chan int) {
-		for y := range ys {
-			x1 := interRect.Min.X - pasteRect.Min.X
-			x2 := interRect.Max.X - pasteRect.Min.X
-			y1 := y - pasteRect.Min.Y
-			y2 := y1 + 1
-			i1 := y*dst.Stride + interRect.Min.X*4
-			i2 := i1 + interRect.Dx()*4
-			src.scan(x1, y1, x2, y2, dst.Pix[i1:i2])
-		}
-	})
-	return dst
-}
-
-// PasteCenter pastes the img image to the center of the background image and returns the combined image.
-func PasteCenter(background, img image.Image) *image.NRGBA {
-	bgBounds := background.Bounds()
-	bgW := bgBounds.Dx()
-	bgH := bgBounds.Dy()
-	bgMinX := bgBounds.Min.X
-	bgMinY := bgBounds.Min.Y
-
-	centerX := bgMinX + bgW/2
-	centerY := bgMinY + bgH/2
-
-	x0 := centerX - img.Bounds().Dx()/2
-	y0 := centerY - img.Bounds().Dy()/2
-
-	return Paste(background, img, image.Pt(x0, y0))
-}
-
-// Overlay draws the img image over the background image at given position
-// and returns the combined image. Opacity parameter is the opacity of the img
-// image layer, used to compose the images, it must be from 0.0 to 1.0.
-//
-// Usage examples:
-//
-//	// Draw spriteImage over backgroundImage at the given position (x=50, y=50).
-//	dstImage := imaging.Overlay(backgroundImage, spriteImage, image.Pt(50, 50), 1.0)
-//
-//	// Blend two opaque images of the same size.
-//	dstImage := imaging.Overlay(imageOne, imageTwo, image.Pt(0, 0), 0.5)
-//
-func Overlay(background, img image.Image, pos image.Point, opacity float64) *image.NRGBA {
-	opacity = math.Min(math.Max(opacity, 0.0), 1.0) // Ensure 0.0 <= opacity <= 1.0.
-	dst := Clone(background)
-	pos = pos.Sub(background.Bounds().Min)
-	pasteRect := image.Rectangle{Min: pos, Max: pos.Add(img.Bounds().Size())}
-	interRect := pasteRect.Intersect(dst.Bounds())
-	if interRect.Empty() {
-		return dst
-	}
-	src := newScanner(img)
-	parallel(interRect.Min.Y, interRect.Max.Y, func(ys <-chan int) {
-		scanLine := make([]uint8, interRect.Dx()*4)
-		for y := range ys {
-			x1 := interRect.Min.X - pasteRect.Min.X
-			x2 := interRect.Max.X - pasteRect.Min.X
-			y1 := y - pasteRect.Min.Y
-			y2 := y1 + 1
-			src.scan(x1, y1, x2, y2, scanLine)
-			i := y*dst.Stride + interRect.Min.X*4
-			j := 0
-			for x := interRect.Min.X; x < interRect.Max.X; x++ {
-				r1 := float64(dst.Pix[i+0])
-				g1 := float64(dst.Pix[i+1])
-				b1 := float64(dst.Pix[i+2])
-				a1 := float64(dst.Pix[i+3])
-
-				r2 := float64(scanLine[j+0])
-				g2 := float64(scanLine[j+1])
-				b2 := float64(scanLine[j+2])
-				a2 := float64(scanLine[j+3])
-
-				coef2 := opacity * a2 / 255
-				coef1 := (1 - coef2) * a1 / 255
-				coefSum := coef1 + coef2
-				coef1 /= coefSum
-				coef2 /= coefSum
-
-				dst.Pix[i+0] = uint8(r1*coef1 + r2*coef2)
-				dst.Pix[i+1] = uint8(g1*coef1 + g2*coef2)
-				dst.Pix[i+2] = uint8(b1*coef1 + b2*coef2)
-				dst.Pix[i+3] = uint8(math.Min(a1+a2*opacity*(255-a1)/255, 255))
-
-				i += 4
-				j += 4
-			}
-		}
-	})
-	return dst
-}
-
-// OverlayCenter overlays the img image to the center of the background image and
-// returns the combined image. Opacity parameter is the opacity of the img
-// image layer, used to compose the images, it must be from 0.0 to 1.0.
-func OverlayCenter(background, img image.Image, opacity float64) *image.NRGBA {
-	bgBounds := background.Bounds()
-	bgW := bgBounds.Dx()
-	bgH := bgBounds.Dy()
-	bgMinX := bgBounds.Min.X
-	bgMinY := bgBounds.Min.Y
-
-	centerX := bgMinX + bgW/2
-	centerY := bgMinY + bgH/2
-
-	x0 := centerX - img.Bounds().Dx()/2
-	y0 := centerY - img.Bounds().Dy()/2
-
-	return Overlay(background, img, image.Point{x0, y0}, opacity)
-}