freetype: update for image.NewXxx change.

R=rsc
CC=golang-dev
http://codereview.appspot.com/4996046

example/freetype/main.go

@@ -85,7 +85,7 @@ func main() {
 		fg, bg = image.White, image.Black
 		ruler = image.RGBAColor{0x22, 0x22, 0x22, 0xff}
 	}
-	rgba := image.NewRGBA(640, 480)
+	rgba := image.NewRGBA(image.Rect(0, 0, 640, 480))
 	draw.Draw(rgba, rgba.Bounds(), bg, image.ZP, draw.Src)
 	c := freetype.NewContext()
 	c.SetDPI(*dpi)

example/gamma/main.go

@@ -39,10 +39,10 @@ func main() {
 		w = 600
 		h = 200
 	)
-	rgba := image.NewRGBA(w, h)
+	rgba := image.NewRGBA(image.Rect(0, 0, w, h))
 	draw.Draw(rgba, image.Rect(0, 0, w, h/2), image.Black, image.ZP, draw.Src)
 	draw.Draw(rgba, image.Rect(0, h/2, w, h), image.White, image.ZP, draw.Src)
-	mask := image.NewAlpha(50, 50)
+	mask := image.NewAlpha(image.Rect(0, 0, 50, 50))
 	painter := raster.NewAlphaSrcPainter(mask)
 	gammas := []float64{1.0 / 10.0, 1.0 / 3.0, 1.0 / 2.0, 2.0 / 3.0, 4.0 / 5.0, 1.0, 5.0 / 4.0, 3.0 / 2.0, 2.0, 3.0, 10.0}
 	for i, g := range gammas {

example/raster/main.go

@@ -140,12 +140,12 @@ func main() {
 	r := raster.NewRasterizer(w, h)
 	contour(r, outside)
 	contour(r, inside)
-	mask := image.NewAlpha(w, h)
+	mask := image.NewAlpha(image.Rect(0, 0, w, h))
 	p := raster.NewAlphaSrcPainter(mask)
 	r.Rasterize(p)
 
 	// Draw the mask image (in gray) onto an RGBA image.
-	rgba := image.NewRGBA(w, h)
+	rgba := image.NewRGBA(image.Rect(0, 0, w, h))
 	gray := image.NewColorImage(image.AlphaColor{0x1f})
 	draw.Draw(rgba, rgba.Bounds(), image.Black, image.ZP, draw.Src)
 	draw.DrawMask(rgba, rgba.Bounds(), gray, image.ZP, mask, image.ZP, draw.Over)

example/round/main.go

@@ -31,7 +31,7 @@ func main() {
 	s := raster.Fix32(r * math.Sqrt(2) / 2)
 	t := raster.Fix32(r * math.Tan(math.Pi/8))
 
-	m := image.NewRGBA(800, 600)
+	m := image.NewRGBA(image.Rect(0, 0, 800, 600))
 	draw.Draw(m, m.Bounds(), &image.ColorImage{image.RGBAColor{63, 63, 63, 255}}, image.ZP, draw.Src)
 	mp := raster.NewRGBAPainter(m)
 	mp.SetColor(image.Black)

freetype/freetype.go

@@ -177,7 +177,7 @@ func (c *Context) rasterize(glyph truetype.Index, fx, fy raster.Fix32) (*image.A
 		c.drawContour(c.glyphBuf.Point[e0:e1], fx, fy)
 		e0 = e1
 	}
-	a := image.NewAlpha(xmax-xmin, ymax-ymin)
+	a := image.NewAlpha(image.Rect(0, 0, xmax-xmin, ymax-ymin))
 	c.r.Rasterize(raster.NewAlphaSrcPainter(a))
 	return a, image.Point{xmin, ymin}, nil
 }