1 files changed, 200 insertions, 0 deletions
diff --git a/Godeps/_workspace/src/code.google.com/p/draw2d/draw2d/raster/raster_test.go b/Godeps/_workspace/src/code.google.com/p/draw2d/draw2d/raster/raster_test.go
new file mode 100644
index 000000000..7872d8d03
--- /dev/null
+++ b/Godeps/_workspace/src/code.google.com/p/draw2d/draw2d/raster/raster_test.go
@@ -0,0 +1,200 @@
+package raster
+
+import (
+	"bufio"
+	"code.google.com/p/draw2d/draw2d/curve"
+	"code.google.com/p/freetype-go/freetype/raster"
+	"image"
+	"image/color"
+	"image/png"
+	"log"
+	"os"
+	"testing"
+)
+
+var flattening_threshold float64 = 0.5
+
+func savepng(filePath string, m image.Image) {
+	f, err := os.Create(filePath)
+	if err != nil {
+		log.Println(err)
+		os.Exit(1)
+	}
+	defer f.Close()
+	b := bufio.NewWriter(f)
+	err = png.Encode(b, m)
+	if err != nil {
+		log.Println(err)
+		os.Exit(1)
+	}
+	err = b.Flush()
+	if err != nil {
+		log.Println(err)
+		os.Exit(1)
+	}
+}
+
+type Path struct {
+	points []float64
+}
+
+func (p *Path) LineTo(x, y float64) {
+	if len(p.points)+2 > cap(p.points) {
+		points := make([]float64, len(p.points)+2, len(p.points)+32)
+		copy(points, p.points)
+		p.points = points
+	} else {
+		p.points = p.points[0 : len(p.points)+2]
+	}
+	p.points[len(p.points)-2] = x
+	p.points[len(p.points)-1] = y
+}
+
+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)
+	color := color.RGBA{0, 0, 0, 0xff}
+
+	img := image.NewRGBA(image.Rect(0, 0, 200, 200))
+	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.NewRGBAPainter(img)
+	painter.SetColor(color)
+	rasterizer.Rasterize(painter)
+
+	savepng("_testFreetype.png", img)
+}
+
+func TestFreetypeNonZeroWinding(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)
+	color := color.RGBA{0, 0, 0, 0xff}
+
+	img := image.NewRGBA(image.Rect(0, 0, 200, 200))
+	rasterizer := raster.NewRasterizer(200, 200)
+	rasterizer.UseNonZeroWinding = true
+	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.NewRGBAPainter(img)
+	painter.SetColor(color)
+	rasterizer.Rasterize(painter)
+
+	savepng("_testFreetypeNonZeroWinding.png", img)
+}
+
+func TestRasterizer(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.RenderEvenOdd(img, &color, &poly, tr)
+	savepng("_testRasterizer.png", img)
+}
+
+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, &poly, tr)
+	savepng("_testRasterizerNonZeroWinding.png", img)
+}
+
+func BenchmarkFreetype(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}
+
+	for i := 0; i < b.N; i++ {
+		img := image.NewRGBA(image.Rect(0, 0, 200, 200))
+		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.NewRGBAPainter(img)
+		painter.SetColor(color)
+		rasterizer.Rasterize(painter)
+	}
+}
+func BenchmarkFreetypeNonZeroWinding(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}
+
+	for i := 0; i < b.N; i++ {
+		img := image.NewRGBA(image.Rect(0, 0, 200, 200))
+		rasterizer := raster.NewRasterizer(200, 200)
+		rasterizer.UseNonZeroWinding = true
+		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.NewRGBAPainter(img)
+		painter.SetColor(color)
+		rasterizer.Rasterize(painter)
+	}
+}
+
+func BenchmarkRasterizerNonZeroWinding(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}
+	for i := 0; i < b.N; i++ {
+		img := image.NewRGBA(image.Rect(0, 0, 200, 200))
+		rasterizer := NewRasterizer8BitsSample(200, 200)
+		rasterizer.RenderNonZeroWinding(img, &color, &poly, tr)
+	}
+}
+
+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}
+	for i := 0; i < b.N; i++ {
+		img := image.NewRGBA(image.Rect(0, 0, 200, 200))
+		rasterizer := NewRasterizer8BitsSample(200, 200)
+		rasterizer.RenderEvenOdd(img, &color, &poly, tr)
+	}
+}