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headless: clear background to transparent, not white

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The clear background is the most useful, and the old behaviour can
be achieved by filling the entire viewport with a white paint.ColorOp.

Signed-off-by: Elias Naur <mail@eliasnaur.com>
This commit is contained in:
Elias Naur
2021-05-03 10:15:19 +02:00
parent 23a839a29d
commit 2c07b2dc0e
52 changed files with 106 additions and 85 deletions
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gpu/internal/rendertest/render_test.go
+11 -11
View File
@@ -56,7 +56,7 @@ func TestTransformMacro(t *testing.T) {
}, func(r result) {
r.expect(5, 15, colornames.Red)
r.expect(15, 15, colornames.Black)
r.expect(11, 51, colornames.White)
r.expect(11, 51, transparent)
})
}
@@ -80,7 +80,7 @@ func TestRepeatedPaintsZ(t *testing.T) {
}, func(r result) {
r.expect(5, 5, colornames.Red)
r.expect(11, 15, colornames.Black)
r.expect(11, 51, colornames.White)
r.expect(11, 51, transparent)
})
}
@@ -99,7 +99,7 @@ func TestNoClipFromPaint(t *testing.T) {
r.expect(1, 1, colornames.Black)
r.expect(20, 20, colornames.Black)
r.expect(49, 49, colornames.Black)
r.expect(51, 51, colornames.White)
r.expect(51, 51, transparent)
})
}
@@ -197,16 +197,16 @@ func TestBuildOffscreen(t *testing.T) {
func(ops *op.Ops) {
draw(-100, ops)
}, func(r result) {
r.expect(5, 5, colornames.White)
r.expect(20, 20, colornames.White)
r.expect(5, 5, transparent)
r.expect(20, 20, transparent)
}),
frame(
func(ops *op.Ops) {
draw(0, ops)
}, func(r result) {
r.expect(2, 2, colornames.White)
r.expect(2, 2, transparent)
r.expect(20, 20, colornames.Black)
r.expect(38, 38, colornames.White)
r.expect(38, 38, transparent)
}))
}
@@ -216,10 +216,10 @@ func TestNegativeOverlaps(t *testing.T) {
clip.Rect(image.Rect(0, 120, 100, 122)).Add(ops)
paint.PaintOp{}.Add(ops)
}, func(r result) {
r.expect(60, 60, colornames.White)
r.expect(60, 110, colornames.White)
r.expect(60, 120, colornames.White)
r.expect(60, 122, colornames.White)
r.expect(60, 60, transparent)
r.expect(60, 110, transparent)
r.expect(60, 120, transparent)
r.expect(60, 122, transparent)
})
}