instances_bench_test.go RawHistoryFolder

1package render
2
3import (
4	"image"
5	"testing"
6
7	"github.com/bnema/nefergui/internal/css"
8	"github.com/bnema/nefergui/internal/layout"
9	"github.com/bnema/nefergui/internal/text"
10)
11
12// listFixture is a product-like mix: atlas draws with an image every 50 quads.
13func listFixture(n int) Frame {
14	img := image.NewRGBA(image.Rect(0, 0, 2, 2))
15	quads := make([]Quad, n)
16	for i := range quads {
17		switch {
18		case i%50 == 49:
19			quads[i] = Quad{Op: "image", Image: img, Rect: layout.Rect{W: 4, H: 4}}
20		case i%3 == 0:
21			quads[i] = Quad{Op: "glyph", Glyph: text.Placement{Page: 1, Rect: image.Rect(1, 2, 9, 12)}, Color: css.Color{A: 1}}
22		case i%7 == 0:
23			quads[i] = Quad{Op: "border", Color: css.Color{A: 1}}
24		default:
25			quads[i] = Quad{Op: "rect", Rect: layout.Rect{X: float64(i), W: 3, H: 3}, Color: css.Color{A: 1}}
26		}
27	}
28	return Frame{Quads: quads}
29}
30
31func BenchmarkListBatches(b *testing.B) {
32	frame := listFixture(2000)
33	b.ReportAllocs()
34	b.ResetTimer()
35	for i := 0; i < b.N; i++ {
36		instances, batches, stats := ListBatches(frame)
37		if len(instances) != 2000 || len(batches) == 0 || len(stats.Skipped) != 0 {
38			b.Fatal("list")
39		}
40	}
41}
42
43func BenchmarkListBufferReuse(b *testing.B) {
44	frame := listFixture(2000)
45	var buf ListBuffer
46	buf.List(frame)
47	buf.Release()
48	b.ReportAllocs()
49	b.ResetTimer()
50	for i := 0; i < b.N; i++ {
51		instances, batches, stats := buf.List(frame)
52		if len(instances) != 2000 || len(batches) == 0 || len(stats.Skipped) != 0 {
53			b.Fatal("list")
54		}
55	}
56}