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)
}
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)
}
}
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)
}
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)
}
}
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)
}