.gitignore

@@ -1,4 +0,0 @@
-child_porn
-imageutils.test
-cpu.out
-profile.out

README

@@ -1,3 +0,0 @@
-(with a dummy as fuck image rescaling)
-utilities work in theory, but doing everything very slow.
-i really love Go's image.Image interface type, but its really hard to do something with it well.

concat.go

@@ -21,9 +21,9 @@ type pair struct {
 }
 
 // Takes color.Model of the first Image.
-func (p *pair) ColorModel() color.Model { return p.first.ColorModel() }
+func (p pair) ColorModel() color.Model { return p.first.ColorModel() }
 
-func (p *pair) Bounds() image.Rectangle {
+func (p pair) Bounds() image.Rectangle {
 	var (
 		b1 = p.first.Bounds()
 		b2 = p.second.Bounds()
@@ -52,7 +52,7 @@ func (p *pair) Bounds() image.Rectangle {
 	}
 }
 
-func (p *pair) At(x, y int) color.Color {
+func (p pair) At(x, y int) color.Color {
 	img := image.NewRGBA(p.Bounds())
 
 	point := image.Point{}
@@ -86,7 +86,7 @@ func (p *pair) At(x, y int) color.Color {
 	return img.At(x, y)
 }
 
-func render(p *pair) image.Image {
+func render(p pair) image.Image {
 	img := image.NewRGBA(p.Bounds())
 
 	point := image.Point{}
@@ -122,5 +122,5 @@ func render(p *pair) image.Image {
 
 // Concat concatenates second image on a given side.
 func Concat(i1, i2 image.Image, s Side) image.Image {
-	return render(&pair{i1, i2, s})
+	return render(pair{i1, i2, s})
 }

concat_test.go

@@ -1,24 +0,0 @@
-package imageutils
-
-import (
-	"image"
-	"image/png"
-	"io"
-	"testing"
-)
-
-func BenchmarkConcat(b *testing.B) {
-	var instance image.Image = image.NewRGBA(image.Rect(0, 0, 0, 0))
-	pixel := SinglePixel{}
-
-	for i := 0; i < b.N; i++ {
-		instance = Concat(instance, pixel, Right)
-	}
-	err := png.Encode(
-		io.Discard,
-		instance,
-	)
-	if err != nil {
-		panic(err)
-	}
-}

genprof

@@ -1,2 +0,0 @@
-go test -cpuprofile=profile.out -bench=$1 &&
-go tool pprof -text profile.out

go.mod

@@ -1,5 +1,3 @@
-module git.niplace.ru/XoxJlopeZi4BB/imageutils
+module github.com/potassium5703/imageutils
 
-go 1.22.6
-
-require github.com/potassium5703/texture v0.0.0-20240820054037-fce43fc4b0f0 // indirect
+go 1.21.4

go.sum

@@ -1,2 +0,0 @@
-github.com/potassium5703/texture v0.0.0-20240820054037-fce43fc4b0f0 h1:sowjIIVme5ovcdB0kjP3w+4xbVNrlOPdx7Up4LIGJz8=
-github.com/potassium5703/texture v0.0.0-20240820054037-fce43fc4b0f0/go.mod h1:KwM7hMpZhr3XySWuK/SZ7s1BXVQe8p1IyZftYg9KtWY=

scale_test.go

@@ -1,45 +0,0 @@
-package imageutils
-
-import (
-	"image"
-	"image/color"
-	"image/draw"
-	"image/png"
-	"io"
-	"testing"
-
-	"github.com/potassium5703/texture"
-)
-
-func Render(img image.Image, rect image.Rectangle) image.Image {
-	newimg := image.NewRGBA(rect)
-	draw.Draw(newimg, rect, image.White, image.ZP, draw.Src)
-	draw.Draw(newimg, rect, img, image.ZP, draw.Over)
-	return newimg
-}
-
-func BenchmarkScale(b *testing.B) {
-	for i := 0; i < b.N; i++ {
-		err := png.Encode(io.Discard,
-			Scale(Render(
-				texture.New(color.White,
-					color.Black, 2),
-				image.Rect(0, 0, 64, 64),
-			), 64),
-		)
-		if err != nil {
-			panic(err)
-		}
-	}
-}
-
-func BenchmarkSinglePixel(b *testing.B) {
-	instance := SinglePixel{}
-	err := png.Encode(io.Discard,
-		Scale(instance, b.N),
-	)
-	if err != nil {
-		panic(err)
-	}
-
-}

util.go

@@ -1,20 +0,0 @@
-package imageutils
-
-import (
-	"image"
-	"image/color"
-)
-
-type SinglePixel struct{}
-
-func (s SinglePixel) At(x, y int) color.Color {
-	return color.White
-}
-
-func (s SinglePixel) ColorModel() color.Model {
-	return color.RGBAModel
-}
-
-func (s SinglePixel) Bounds() image.Rectangle {
-	return image.Rect(0, 0, 1, 1)
-}