1 /*
2 * Copyright 2019 Google LLC
3 *
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
6 */
7
8 #include <memory>
9
10 #include "bench/Benchmark.h"
11
12 #include "include/core/SkCanvas.h"
13 #include "include/core/SkDeferredDisplayListRecorder.h"
14 #include "include/core/SkSurfaceCharacterization.h"
15 #include "include/gpu/GrDirectContext.h"
16
create_characterization(GrDirectContext * direct)17 static SkSurfaceCharacterization create_characterization(GrDirectContext* direct) {
18 size_t maxResourceBytes = direct->getResourceCacheLimit();
19
20 if (!direct->colorTypeSupportedAsSurface(kRGBA_8888_SkColorType)) {
21 return SkSurfaceCharacterization();
22 }
23
24 SkImageInfo ii = SkImageInfo::Make(32, 32, kRGBA_8888_SkColorType,
25 kPremul_SkAlphaType, nullptr);
26
27 GrBackendFormat backendFormat = direct->defaultBackendFormat(kRGBA_8888_SkColorType,
28 GrRenderable::kYes);
29 if (!backendFormat.isValid()) {
30 return SkSurfaceCharacterization();
31 }
32
33 SkSurfaceProps props(0x0, kUnknown_SkPixelGeometry);
34
35 SkSurfaceCharacterization c = direct->threadSafeProxy()->createCharacterization(
36 maxResourceBytes, ii, backendFormat, 1,
37 kTopLeft_GrSurfaceOrigin, props, false);
38 return c;
39 }
40
41 // This benchmark tries to simulate how Viz is using SkDDLRecorders.
42 // For each config it will create a single DDLRecorder which it reuses for all the runs
43 // For each run it creates a DDL and stores it for later deletion.
44 class DDLRecorderBench : public Benchmark {
45 public:
DDLRecorderBench()46 DDLRecorderBench() { }
47
48 protected:
isSuitableFor(Backend backend)49 bool isSuitableFor(Backend backend) override { return kGPU_Backend == backend; }
50
onGetName()51 const char* onGetName() override { return "DDLRecorder"; }
52
onDraw(int loops,SkCanvas * origCanvas)53 void onDraw(int loops, SkCanvas* origCanvas) override {
54 if (!fRecorder) {
55 return;
56 }
57
58 SkASSERT(!fDDLs.size());
59 fDDLs.reserve(loops);
60
61 for (int i = 0; i < loops; ++i) {
62 SkCanvas* recordingCanvas = fRecorder->getCanvas();
63
64 recordingCanvas->drawRect(SkRect::MakeWH(32, 32), SkPaint());
65
66 fDDLs.emplace_back(fRecorder->detach());
67 }
68 }
69
70 private:
71 // We create one DDLRecorder for all the timing runs and just keep reusing it
onPerCanvasPreDraw(SkCanvas * origCanvas)72 void onPerCanvasPreDraw(SkCanvas* origCanvas) override {
73 auto context = origCanvas->recordingContext()->asDirectContext();
74 if (!context) {
75 return;
76 }
77
78 SkSurfaceCharacterization c = create_characterization(context);
79
80 fRecorder = std::make_unique<SkDeferredDisplayListRecorder>(c);
81 }
82
83 // We defer the clean up of the DDLs so it is done outside of the timing loop
onPostDraw(SkCanvas *)84 void onPostDraw(SkCanvas*) override {
85 fDDLs.clear();
86 }
87
88 std::unique_ptr<SkDeferredDisplayListRecorder> fRecorder = nullptr;
89 std::vector<sk_sp<SkDeferredDisplayList>> fDDLs;
90
91 using INHERITED = Benchmark;
92 };
93
94 DEF_BENCH(return new DDLRecorderBench();)
95