skia2/bench/PictureOverheadBench.cpp
2016-09-13 13:27:13 -07:00

63 lines
2.0 KiB
C++

/*
* Copyright 2015 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
// A benchmark designed to isolate the constant overheads of picture recording.
// We record an empty picture and a picture with one draw op to force memory allocation.
#include "Benchmark.h"
#include "SkCanvas.h"
#include "SkLiteDL.h"
#include "SkLiteRecorder.h"
#include "SkPictureRecorder.h"
template <int kDraws, bool kLite>
struct PictureOverheadBench : public Benchmark {
PictureOverheadBench() {
fName.appendf("picture_overhead_%d%s", kDraws, kLite ? "_lite" : "");
}
const char* onGetName() override { return fName.c_str(); }
bool isSuitableFor(Backend backend) override { return backend == kNonRendering_Backend; }
void onDraw(int loops, SkCanvas*) override {
SkLiteRecorder lite;
SkPictureRecorder rec;
for (int i = 0; i < loops; i++) {
SkRect bounds{0,0, 2000,3000};
sk_sp<SkLiteDL> liteDL;
SkCanvas* canvas;
if (kLite) {
liteDL = SkLiteDL::New(bounds);
lite.reset(liteDL.get());
canvas = &lite;
} else {
rec.beginRecording(bounds);
canvas = rec.getRecordingCanvas();
}
for (int i = 0; i < kDraws; i++) {
canvas->drawRect({10,10, 1000, 1000}, SkPaint{});
}
if (!kLite) {
(void)rec.finishRecordingAsPicture();
}
}
}
SkString fName;
};
DEF_BENCH(return (new PictureOverheadBench<0, false>);)
DEF_BENCH(return (new PictureOverheadBench<1, false>);)
DEF_BENCH(return (new PictureOverheadBench<2, false>);)
DEF_BENCH(return (new PictureOverheadBench<10,false>);)
DEF_BENCH(return (new PictureOverheadBench<0, true>);)
DEF_BENCH(return (new PictureOverheadBench<1, true>);)
DEF_BENCH(return (new PictureOverheadBench<2, true>);)
DEF_BENCH(return (new PictureOverheadBench<10, true>);)