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op/clip: split Rect into pixel-aligned Rect and rounded RRect

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The pixel-aligned Rect is more efficient and easier to use in the common case
of layout clipping.

Signed-off-by: Elias Naur <mail@eliasnaur.com>
This commit is contained in:
Elias Naur
2020-07-09 18:06:00 +02:00
parent 4818538ef8
commit d572aa23ac
14 changed files with 105 additions and 116 deletions
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internal/rendertest/clip_test.go
+3 -3
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@@ -25,7 +25,7 @@ func TestPaintRect(t *testing.T) {
func TestPaintClippedRect(t *testing.T) {
run(t, func(o *op.Ops) {
paint.ColorOp{Color: colornames.Red}.Add(o)
clip.Rect{Rect: f32.Rect(25, 25, 60, 60)}.Add(o)
clip.RRect{Rect: f32.Rect(25, 25, 60, 60)}.Add(o)
paint.PaintOp{Rect: f32.Rect(0, 0, 50, 50)}.Add(o)
}, func(r result) {
r.expect(0, 0, colornames.White)
@@ -40,7 +40,7 @@ func TestPaintClippedCirle(t *testing.T) {
run(t, func(o *op.Ops) {
paint.ColorOp{Color: colornames.Red}.Add(o)
r := float32(10)
clip.Rect{Rect: f32.Rect(20, 20, 40, 40), SE: r, SW: r, NW: r, NE: r}.Add(o)
clip.RRect{Rect: f32.Rect(20, 20, 40, 40), SE: r, SW: r, NW: r, NE: r}.Add(o)
paint.PaintOp{Rect: f32.Rect(0, 0, 30, 50)}.Add(o)
}, func(r result) {
r.expect(21, 21, colornames.White)
@@ -64,7 +64,7 @@ func TestPaintTexture(t *testing.T) {
func TestPaintClippedTexture(t *testing.T) {
run(t, func(o *op.Ops) {
squares.Add(o)
clip.Rect{Rect: f32.Rect(0, 0, 40, 40)}.Add(o)
clip.RRect{Rect: f32.Rect(0, 0, 40, 40)}.Add(o)
paint.PaintOp{Rect: f32.Rect(0, 0, 80, 80)}.Add(o)
}, func(r result) {
r.expect(40, 40, colornames.White)