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f32: replace Affine2D{} with AffineId() for identity transformations

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Reduces ambiguity by introducing AffineId() for representing identity transformation matrices.

References: https://todo.sr.ht/~eliasnaur/gio/655
Signed-off-by: Walter Werner SCHNEIDER <contact@schnwalter.eu>
This commit is contained in:
Walter Werner SCHNEIDER
2025-07-09 13:38:17 +03:00
committed by Elias Naur
parent 3e601e73c4
commit d76b4272aa
15 changed files with 49 additions and 35 deletions
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gpu/internal/rendertest/render_test.go
+7 -7
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@@ -87,10 +87,10 @@ func TestNoClipFromPaint(t *testing.T) {
// ensure that a paint operation does not pollute the state
// by leaving any clip paths in place.
run(t, func(o *op.Ops) {
a := f32.Affine2D{}.Rotate(f32.Pt(20, 20), math.Pi/4)
a := f32.AffineId().Rotate(f32.Pt(20, 20), math.Pi/4)
defer op.Affine(a).Push(o).Pop()
paint.FillShape(o, red, clip.Rect(image.Rect(10, 10, 30, 30)).Op())
a = f32.Affine2D{}.Rotate(f32.Pt(20, 20), -math.Pi/4)
a = f32.AffineId().Rotate(f32.Pt(20, 20), -math.Pi/4)
defer op.Affine(a).Push(o).Pop()
paint.FillShape(o, black, clip.Rect(image.Rect(0, 0, 50, 50)).Op())
@@ -109,7 +109,7 @@ func TestDeferredPaint(t *testing.T) {
paint.PaintOp{}.Add(o)
cl.Pop()
t := op.Affine(f32.Affine2D{}.Offset(f32.Pt(20, 20))).Push(o)
t := op.Affine(f32.AffineId().Offset(f32.Pt(20, 20))).Push(o)
m := op.Record(o)
cl2 := clip.Rect(image.Rect(0, 0, 80, 80)).Op().Push(o)
paint.ColorOp{Color: color.NRGBA{A: 0x60, R: 0xff, G: 0xff}}.Add(o)
@@ -119,7 +119,7 @@ func TestDeferredPaint(t *testing.T) {
op.Defer(o, paintMacro)
t.Pop()
defer op.Affine(f32.Affine2D{}.Offset(f32.Pt(10, 10))).Push(o).Pop()
defer op.Affine(f32.AffineId().Offset(f32.Pt(10, 10))).Push(o).Pop()
defer clip.Rect(image.Rect(0, 0, 80, 80)).Op().Push(o).Pop()
paint.ColorOp{Color: color.NRGBA{A: 0x60, B: 0xff}}.Add(o)
paint.PaintOp{}.Add(o)
@@ -260,7 +260,7 @@ func TestLinearGradient(t *testing.T) {
Color2: g.To,
}.Add(ops)
cl := clip.RRect{Rect: gr.Round()}.Push(ops)
t1 := op.Affine(f32.Affine2D{}.Offset(pixelAligned.Min)).Push(ops)
t1 := op.Affine(f32.AffineId().Offset(pixelAligned.Min)).Push(ops)
t2 := scale(pixelAligned.Dx()/128, 1).Push(ops)
paint.PaintOp{}.Add(ops)
t2.Pop()
@@ -363,7 +363,7 @@ func TestImageRGBA_ScaleLinear(t *testing.T) {
run(t, func(o *op.Ops) {
w := newWindow(t, 128, 128)
defer clip.Rect{Max: image.Pt(128, 128)}.Push(o).Pop()
op.Affine(f32.Affine2D{}.Scale(f32.Point{}, f32.Pt(64, 64))).Add(o)
op.Affine(f32.AffineId().Scale(f32.Point{}, f32.Pt(64, 64))).Add(o)
im := image.NewRGBA(image.Rect(0, 0, 2, 2))
im.Set(0, 0, colornames.Red)
@@ -397,7 +397,7 @@ func TestImageRGBA_ScaleLinear(t *testing.T) {
func TestImageRGBA_ScaleNearest(t *testing.T) {
run(t, func(o *op.Ops) {
w := newWindow(t, 128, 128)
op.Affine(f32.Affine2D{}.Scale(f32.Point{}, f32.Pt(64, 64))).Add(o)
op.Affine(f32.AffineId().Scale(f32.Point{}, f32.Pt(64, 64))).Add(o)
im := image.NewRGBA(image.Rect(0, 0, 2, 2))
im.Set(0, 0, colornames.Red)