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94 lines
2.1 KiB
94 lines
2.1 KiB
3 years ago
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// SPDX-License-Identifier: Unlicense OR MIT
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package main
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import (
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"image"
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"testing"
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"time"
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"gioui.org/f32"
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"gioui.org/font/gofont"
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"gioui.org/gpu/headless"
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"gioui.org/layout"
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"gioui.org/op"
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"gioui.org/widget/material"
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)
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func BenchmarkUI(b *testing.B) { benchmarkUI(b, transformation{}) }
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func BenchmarkUI_Offset(b *testing.B) { benchmarkUI(b, transformation{offset: true}) }
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func BenchmarkUI_Scale(b *testing.B) { benchmarkUI(b, transformation{scale: true}) }
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func BenchmarkUI_Rotate(b *testing.B) { benchmarkUI(b, transformation{rotate: true}) }
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func BenchmarkUI_All(b *testing.B) {
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benchmarkUI(b, transformation{offset: true, rotate: true, scale: true})
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}
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func benchmarkUI(b *testing.B, transform transformation) {
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th := material.NewTheme(gofont.Collection())
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w, err := headless.NewWindow(800, 600)
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if err != nil {
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b.Fatal(err)
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}
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defer w.Release()
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var layoutTime time.Duration
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var frameTime time.Duration
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b.ResetTimer()
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var ops op.Ops
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for i := 0; i < b.N; i++ {
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ops.Reset()
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gtx := layout.Context{
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Ops: &ops,
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Constraints: layout.Exact(image.Pt(800, 600)),
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}
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addTransform(i, transform, gtx.Ops)
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layoutTime += measure(func() { kitchen(gtx, th) })
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frameTime += measure(func() { w.Frame(&ops) })
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}
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b.StopTimer()
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b.ReportMetric(float64(layoutTime.Nanoseconds())/float64(b.N), "ns/layout")
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b.ReportMetric(float64(frameTime.Nanoseconds())/float64(b.N), "ns/frame")
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}
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type transformation struct {
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offset bool
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rotate bool
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scale bool
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}
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func addTransform(i int, transform transformation, ops *op.Ops) {
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if !(transform.offset || transform.rotate || transform.scale) {
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return
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}
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dt := float32(i)
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tr := f32.Affine2D{}
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if transform.rotate {
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angle := dt * .1
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tr = tr.Rotate(f32.Pt(300, 20), -angle)
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}
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if transform.scale {
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scale := 1.0 - dt*.5
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if scale < 0.5 {
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scale = 0.5
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}
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tr = tr.Scale(f32.Pt(300, 20), f32.Pt(scale, scale))
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}
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if transform.offset {
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offset := dt * 50
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if offset > 200 {
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offset = 200
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}
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tr = tr.Offset(f32.Pt(0, offset))
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}
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op.Affine(tr).Add(ops)
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}
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func measure(fn func()) time.Duration {
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start := time.Now()
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fn()
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return time.Since(start)
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}
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