I made my own draw method with blackjack and hookers

backends/x/draw.go

@@ -92,15 +92,11 @@ func (backend *Backend) drawRune (
 	if character < 32 { return }
 
 	origin := backend.originOfCell(x, y + 1)
-	destinationRectangle, mask, maskPoint, _, ok := backend.font.face.Glyph (
-		fixed.Point26_6 {
-			X: fixed.I(origin.X),
-			Y: fixed.I(origin.Y - backend.metrics.descent),
-		},
+	destinationRectangle, mask, _, _, ok := backend.font.face.Glyph (
+		fixed.Point26_6 { },
 		character)
 
 	if !ok {
-		println("warning")
 		strokeRectangle (
 			&image.Uniform {
 				C: backend.config.Color(stone.ColorForeground),
@@ -119,16 +115,31 @@ func (backend *Backend) drawRune (
 			backend.boundsOfCell(x, y))
 	}
 
-	draw.DrawMask (
-		backend.canvas,
-		destinationRectangle,
-		&image.Uniform {
-			C: backend.config.Color(runeColor),
-		},
-		image.Point { },
-		mask,
-		maskPoint,
-		draw.Over)
+	origin.Y += destinationRectangle.Min.Y - backend.metrics.descent
+	backend.sprayRuneMask(mask, origin, backend.colors[runeColor])
+}
+
+func (backend *Backend) sprayRuneMask (
+	mask image.Image,
+	at   image.Point,
+	fill xgraphics.BGRA,
+) {
+	bounds := mask.Bounds().Max
+	for y := 0; y < bounds.Y; y ++ {
+	for x := 0; x < bounds.X; x ++ {
+		_, _, _, alpha := mask.At(x, y).RGBA()
+		backend.canvas.SetBGRA (
+			x + at.X,
+			y + at.Y,
+			xgraphics.BlendBGRA (
+				backend.colors[stone.ColorBackground],
+				xgraphics.BGRA {
+					R: fill.R,
+					G: fill.G,
+					B: fill.B,
+					A: uint8(alpha >> 8),
+				}))
+	}}
 }
 
 func fillRectangle (