1 package rendertest
2 3 import (
4 "image"
5 "image/color"
6 "math"
7 "testing"
8 9 "github.com/p9c/p9/pkg/gel/gio/f32"
10 "github.com/p9c/p9/pkg/gel/gio/font/gofont"
11 "github.com/p9c/p9/pkg/gel/gio/gpu/headless"
12 "github.com/p9c/p9/pkg/gel/gio/layout"
13 "github.com/p9c/p9/pkg/gel/gio/op"
14 "github.com/p9c/p9/pkg/gel/gio/op/clip"
15 "github.com/p9c/p9/pkg/gel/gio/op/paint"
16 "github.com/p9c/p9/pkg/gel/gio/widget/material"
17 )
18 19 // use some global variables for benchmarking so as to not pollute
20 // the reported allocs with allocations that we do not want to count.
21 var (
22 c1, c2, c3 = make(chan op.CallOp), make(chan op.CallOp), make(chan op.CallOp)
23 op1, op2, op3 op.Ops
24 )
25 26 func setupBenchmark(b *testing.B) (layout.Context, *headless.Window, *material.Theme) {
27 sz := image.Point{X: 1024, Y: 1200}
28 w := newWindow(b, sz.X, sz.Y)
29 ops := new(op.Ops)
30 gtx := layout.Context{
31 Ops: ops,
32 Constraints: layout.Exact(sz),
33 }
34 th := material.NewTheme(gofont.Collection())
35 return gtx, w, th
36 }
37 38 func resetOps(gtx layout.Context) {
39 gtx.Ops.Reset()
40 op1.Reset()
41 op2.Reset()
42 op3.Reset()
43 }
44 45 func finishBenchmark(b *testing.B, w *headless.Window) {
46 b.StopTimer()
47 if *dumpImages {
48 img, err := w.Screenshot()
49 w.Release()
50 if err != nil {
51 b.Error(err)
52 }
53 if err := saveImage(b.Name()+".png", img); err != nil {
54 b.Error(err)
55 }
56 }
57 }
58 59 func BenchmarkDrawUICached(b *testing.B) {
60 // As BenchmarkDraw but the same op.Ops every time that is not reset - this
61 // should thus allow for maximal cache usage.
62 gtx, w, th := setupBenchmark(b)
63 drawCore(gtx, th)
64 w.Frame(gtx.Ops)
65 b.ResetTimer()
66 for i := 0; i < b.N; i++ {
67 w.Frame(gtx.Ops)
68 }
69 finishBenchmark(b, w)
70 }
71 72 func BenchmarkDrawUI(b *testing.B) {
73 // BenchmarkDraw is intended as a reasonable overall benchmark for
74 // the drawing performance of the full drawing pipeline, in each iteration
75 // resetting the ops and drawing, similar to how a typical UI would function.
76 // This will allow font caching across frames.
77 gtx, w, th := setupBenchmark(b)
78 drawCore(gtx, th)
79 w.Frame(gtx.Ops)
80 b.ReportAllocs()
81 b.ResetTimer()
82 for i := 0; i < b.N; i++ {
83 resetOps(gtx)
84 85 p := op.Save(gtx.Ops)
86 off := float32(math.Mod(float64(i)/10, 10))
87 op.Offset(f32.Pt(off, off)).Add(gtx.Ops)
88 89 drawCore(gtx, th)
90 91 p.Load()
92 w.Frame(gtx.Ops)
93 }
94 finishBenchmark(b, w)
95 }
96 97 func BenchmarkDrawUITransformed(b *testing.B) {
98 // Like BenchmarkDraw UI but transformed at every frame
99 gtx, w, th := setupBenchmark(b)
100 drawCore(gtx, th)
101 w.Frame(gtx.Ops)
102 b.ReportAllocs()
103 b.ResetTimer()
104 for i := 0; i < b.N; i++ {
105 resetOps(gtx)
106 107 p := op.Save(gtx.Ops)
108 angle := float32(math.Mod(float64(i)/1000, 0.05))
109 a := f32.Affine2D{}.Shear(f32.Point{}, angle, angle).Rotate(f32.Point{}, angle)
110 op.Affine(a).Add(gtx.Ops)
111 112 drawCore(gtx, th)
113 114 p.Load()
115 w.Frame(gtx.Ops)
116 }
117 finishBenchmark(b, w)
118 }
119 120 func Benchmark1000Circles(b *testing.B) {
121 // Benchmark1000Shapes draws 1000 individual shapes such that no caching between
122 // shapes will be possible and resets buffers on each operation to prevent caching
123 // between frames.
124 gtx, w, _ := setupBenchmark(b)
125 draw1000Circles(gtx)
126 w.Frame(gtx.Ops)
127 b.ReportAllocs()
128 b.ResetTimer()
129 for i := 0; i < b.N; i++ {
130 resetOps(gtx)
131 draw1000Circles(gtx)
132 w.Frame(gtx.Ops)
133 }
134 finishBenchmark(b, w)
135 }
136 137 func Benchmark1000CirclesInstanced(b *testing.B) {
138 // Like Benchmark1000Circles but will record them and thus allow for caching between
139 // them.
140 gtx, w, _ := setupBenchmark(b)
141 draw1000CirclesInstanced(gtx)
142 w.Frame(gtx.Ops)
143 b.ReportAllocs()
144 b.ResetTimer()
145 for i := 0; i < b.N; i++ {
146 resetOps(gtx)
147 draw1000CirclesInstanced(gtx)
148 w.Frame(gtx.Ops)
149 }
150 finishBenchmark(b, w)
151 }
152 153 func draw1000Circles(gtx layout.Context) {
154 ops := gtx.Ops
155 for x := 0; x < 100; x++ {
156 p := op.Save(ops)
157 op.Offset(f32.Pt(float32(x*10), 0)).Add(ops)
158 for y := 0; y < 10; y++ {
159 paint.FillShape(ops,
160 color.NRGBA{R: 100 + uint8(x), G: 100 + uint8(y), B: 100, A: 120},
161 clip.RRect{Rect: f32.Rect(0, 0, 10, 10), NE: 5, SE: 5, SW: 5, NW: 5}.Op(ops),
162 )
163 op.Offset(f32.Pt(0, float32(100))).Add(ops)
164 }
165 p.Load()
166 }
167 }
168 169 func draw1000CirclesInstanced(gtx layout.Context) {
170 ops := gtx.Ops
171 172 r := op.Record(ops)
173 clip.RRect{Rect: f32.Rect(0, 0, 10, 10), NE: 5, SE: 5, SW: 5, NW: 5}.Add(ops)
174 paint.PaintOp{}.Add(ops)
175 c := r.Stop()
176 177 for x := 0; x < 100; x++ {
178 p := op.Save(ops)
179 op.Offset(f32.Pt(float32(x*10), 0)).Add(ops)
180 for y := 0; y < 10; y++ {
181 pi := op.Save(ops)
182 paint.ColorOp{Color: color.NRGBA{R: 100 + uint8(x), G: 100 + uint8(y), B: 100, A: 120}}.Add(ops)
183 c.Add(ops)
184 pi.Load()
185 op.Offset(f32.Pt(0, float32(100))).Add(ops)
186 }
187 p.Load()
188 }
189 }
190 191 func drawCore(gtx layout.Context, th *material.Theme) {
192 c1 := drawIndividualShapes(gtx, th)
193 c2 := drawShapeInstances(gtx, th)
194 c3 := drawText(gtx, th)
195 196 (<-c1).Add(gtx.Ops)
197 (<-c2).Add(gtx.Ops)
198 (<-c3).Add(gtx.Ops)
199 }
200 201 func drawIndividualShapes(gtx layout.Context, th *material.Theme) chan op.CallOp {
202 // draw 81 rounded rectangles of different solid colors - each one individually
203 go func() {
204 ops := &op1
205 c := op.Record(ops)
206 for x := 0; x < 9; x++ {
207 p := op.Save(ops)
208 op.Offset(f32.Pt(float32(x*50), 0)).Add(ops)
209 for y := 0; y < 9; y++ {
210 paint.FillShape(ops,
211 color.NRGBA{R: 100 + uint8(x), G: 100 + uint8(y), B: 100, A: 120},
212 clip.RRect{Rect: f32.Rect(0, 0, 25, 25), NE: 10, SE: 10, SW: 10, NW: 10}.Op(ops),
213 )
214 op.Offset(f32.Pt(0, float32(50))).Add(ops)
215 }
216 p.Load()
217 }
218 c1 <- c.Stop()
219 }()
220 return c1
221 }
222 223 func drawShapeInstances(gtx layout.Context, th *material.Theme) chan op.CallOp {
224 // draw 400 textured circle instances, each with individual transform
225 go func() {
226 ops := &op2
227 co := op.Record(ops)
228 229 r := op.Record(ops)
230 clip.RRect{Rect: f32.Rect(0, 0, 25, 25), NE: 10, SE: 10, SW: 10, NW: 10}.Add(ops)
231 paint.PaintOp{}.Add(ops)
232 c := r.Stop()
233 234 squares.Add(ops)
235 rad := float32(0)
236 for x := 0; x < 20; x++ {
237 for y := 0; y < 20; y++ {
238 p := op.Save(ops)
239 op.Offset(f32.Pt(float32(x*50+25), float32(y*50+25))).Add(ops)
240 c.Add(ops)
241 p.Load()
242 rad += math.Pi * 2 / 400
243 }
244 }
245 c2 <- co.Stop()
246 }()
247 return c2
248 }
249 250 func drawText(gtx layout.Context, th *material.Theme) chan op.CallOp {
251 // draw 40 lines of text with different transforms.
252 go func() {
253 ops := &op3
254 c := op.Record(ops)
255 256 txt := material.H6(th, "")
257 for x := 0; x < 40; x++ {
258 txt.Text = textRows[x]
259 p := op.Save(ops)
260 op.Offset(f32.Pt(float32(0), float32(24*x))).Add(ops)
261 gtx.Ops = ops
262 txt.Layout(gtx)
263 p.Load()
264 }
265 c3 <- c.Stop()
266 }()
267 return c3
268 }
269 270 var textRows = []string{
271 "1. I learned from my grandfather, Verus, to use good manners, and to",
272 "put restraint on anger. 2. In the famous memory of my father I had a",
273 "pattern of modesty and manliness. 3. Of my mother I learned to be",
274 "pious and generous; to keep myself not only from evil deeds, but even",
275 "from evil thoughts; and to live with a simplicity which is far from",
276 "customary among the rich. 4. I owe it to my great-grandfather that I",
277 "did not attend public lectures and discussions, but had good and able",
278 "teachers at home; and I owe him also the knowledge that for things of",
279 "this nature a man should count no expense too great.",
280 "5. My tutor taught me not to favour either green or blue at the",
281 "chariot races, nor, in the contests of gladiators, to be a supporter",
282 "either of light or heavy armed. He taught me also to endure labour;",
283 "not to need many things; to serve myself without troubling others; not",
284 "to intermeddle in the affairs of others, and not easily to listen to",
285 "slanders against them.",
286 "6. Of Diognetus I had the lesson not to busy myself about vain things;",
287 "not to credit the great professions of such as pretend to work",
288 "wonders, or of sorcerers about their charms, and their expelling of",
289 "Demons and the like; not to keep quails (for fighting or divination),",
290 "nor to run after such things; to suffer freedom of speech in others,",
291 "and to apply myself heartily to philosophy. Him also I must thank for",
292 "my hearing first Bacchius, then Tandasis and Marcianus; that I wrote",
293 "dialogues in my youth, and took a liking to the philosopher's pallet",
294 "and skins, and to the other things which, by the Grecian discipline,",
295 "belong to that profession.",
296 "7. To Rusticus I owe my first apprehensions that my nature needed",
297 "reform and cure; and that I did not fall into the ambition of the",
298 "common Sophists, either by composing speculative writings or by",
299 "declaiming harangues of exhortation in public; further, that I never",
300 "strove to be admired by ostentation of great patience in an ascetic",
301 "life, or by display of activity and application; that I gave over the",
302 "study of rhetoric, poetry, and the graces of language; and that I did",
303 "not pace my house in my senatorial robes, or practise any similar",
304 "affectation. I observed also the simplicity of style in his letters,",
305 "particularly in that which he wrote to my mother from Sinuessa. I",
306 "learned from him to be easily appeased, and to be readily reconciled",
307 "with those who had displeased me or given cause of offence, so soon as",
308 "they inclined to make their peace; to read with care; not to rest",
309 "satisfied with a slight and superficial knowledge; nor quickly to",
310 "assent to great talkers. I have him to thank that I met with the",
311 }
312