Exemplo n.º 1
0
func TestSimpleRasterizer(t *testing.T) {
	bounds := image.Rect(0, 0, 200, 200)
	img := image.NewRGBA(bounds)
	mask := image.NewAlpha(bounds)
	var p Path
	p.LineTo(10, 190)
	c := curve.CubicCurveFloat64{10, 190, 10, 10, 190, 10, 190, 190}
	c.Segment(&p, flattening_threshold)
	poly := Polygon(p.points)
	rgba := color.RGBA{0, 0, 0, 0xff}
	r := NewRasterizer()
	r.Fill(mask, poly, false)
	DrawSolidRGBA(img, mask, rgba)
	savepng("_testSimpleRasterizer.png", img)
}
Exemplo n.º 2
0
func BenchmarkRasterizer(b *testing.B) {
	var p Path
	p.LineTo(10, 190)
	c := curve.CubicCurveFloat64{10, 190, 10, 10, 190, 10, 190, 190}
	c.Segment(&p, flattening_threshold)
	poly := Polygon(p.points)
	color := color.RGBA{0, 0, 0, 0xff}
	tr := [6]float64{1, 0, 0, 1, 0, 0}
	rasterizer := NewRasterizer8BitsSample(200, 200)
	for i := 0; i < b.N; i++ {
		img := image.NewRGBA(image.Rect(0, 0, 200, 200))

		rasterizer.RenderEvenOdd(img, color, []Polygon{poly}, tr)
	}
}
Exemplo n.º 3
0
func TestRasterizerNonZeroWinding(t *testing.T) {
	img := image.NewRGBA(image.Rect(0, 0, 200, 200))
	var p Path
	p.LineTo(10, 190)
	c := curve.CubicCurveFloat64{10, 190, 10, 10, 190, 10, 190, 190}
	c.Segment(&p, flattening_threshold)
	poly := Polygon(p.points)
	color := color.RGBA{0, 0, 0, 0xff}
	tr := [6]float64{1, 0, 0, 1, 0, 0}
	r := NewRasterizer8BitsSample(200, 200)
	//PolylineBresenham(img, image.Black, poly...)

	r.RenderNonZeroWinding(img, color, []Polygon{poly}, tr)
	savepng("_testRasterizerNonZeroWinding.png", img)
}
Exemplo n.º 4
0
func BenchmarkSimpleRasterizerNonZero(b *testing.B) {
	var p Path
	p.LineTo(10, 190)
	c := curve.CubicCurveFloat64{10, 190, 10, 10, 190, 10, 190, 190}
	c.Segment(&p, flattening_threshold)
	poly := Polygon(p.points)
	rgba := color.RGBA{0, 0, 0, 0xff}
	rasterizer := NewRasterizer()
	for i := 0; i < b.N; i++ {
		bounds := image.Rect(0, 0, 200, 200)
		img := image.NewRGBA(bounds)
		mask := image.NewAlpha(bounds)
		rasterizer.Fill(mask, poly, true)
		DrawSolidRGBA(img, mask, rgba)
	}
}
Exemplo n.º 5
0
func TestFreetype(t *testing.T) {
	var p Path
	p.LineTo(10, 190)
	c := curve.CubicCurveFloat64{10, 190, 10, 10, 190, 10, 190, 190}
	c.Segment(&p, flattening_threshold)
	poly := Polygon(p.points)
	rgba := color.RGBA{0, 0, 0, 0xff}

	bounds := image.Rect(0, 0, 200, 200)
	mask := image.NewAlpha(bounds)
	img := image.NewRGBA(bounds)
	rasterizer := raster.NewRasterizer(200, 200)
	rasterizer.UseNonZeroWinding = false
	rasterizer.Start(raster.Point{raster.Fix32(10 * 256), raster.Fix32(190 * 256)})
	for j := 0; j < len(poly); j = j + 2 {
		rasterizer.Add1(raster.Point{raster.Fix32(poly[j] * 256), raster.Fix32(poly[j+1] * 256)})
	}
	painter := raster.NewAlphaSrcPainter(mask)
	rasterizer.Rasterize(painter)
	DrawSolidRGBA(img, mask, rgba)
	savepng("_testFreetype.png", img)
}