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/*
* Copyright 2017 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "Benchmark.h"
#include "SkData.h"
#include "SkOSFile.h"
#include "SkPicture.h"
#include "Timer.h"
#include "gm.h"
#include "ok.h"
#include <algorithm>
#include <chrono>
#include <limits>
#include <stdlib.h>
#include <vector>
struct GMStream : Stream {
const skiagm::GMRegistry* registry = skiagm::GMRegistry::Head();
static std::unique_ptr<Stream> Create(Options) {
GMStream stream;
return move_unique(stream);
}
struct GMSrc : Src {
skiagm::GM* (*factory)(void*);
std::unique_ptr<skiagm::GM> gm;
void init() {
if (gm) { return; }
gm.reset(factory(nullptr));
}
std::string name() override {
this->init();
return gm->getName();
}
SkISize size() override {
this->init();
return gm->getISize();
}
Status draw(SkCanvas* canvas) override {
this->init();
canvas->clear(0xffffffff);
gm->draw(canvas);
return Status::OK;
}
};
std::unique_ptr<Src> next() override {
if (!registry) {
return nullptr;
}
GMSrc src;
src.factory = registry->factory();
registry = registry->next();
return move_unique(src);
}
};
static Register gm{"gm", "draw GMs linked into this binary", GMStream::Create};
struct SKPStream : Stream {
std::string dir;
std::vector<std::string> skps;
static std::unique_ptr<Stream> Create(Options options) {
SKPStream stream;
stream.dir = options("dir", "skps");
SkOSFile::Iter it{stream.dir.c_str(), ".skp"};
for (SkString path; it.next(&path); ) {
stream.skps.push_back(path.c_str());
}
return move_unique(stream);
}
struct SKPSrc : Src {
std::string dir, path;
sk_sp<SkPicture> pic;
void init() {
if (pic) { return; }
auto skp = SkData::MakeFromFileName((dir+"/"+path).c_str());
pic = SkPicture::MakeFromData(skp.get());
}
std::string name() override {
return path;
}
SkISize size() override {
this->init();
return pic->cullRect().roundOut().size();
}
Status draw(SkCanvas* canvas) override {
this->init();
canvas->clear(0xffffffff);
pic->playback(canvas);
return Status::OK;
}
};
std::unique_ptr<Src> next() override {
if (skps.empty()) {
return nullptr;
}
SKPSrc src;
src.dir = dir;
src.path = skps.back();
skps.pop_back();
return move_unique(src);
}
};
static Register skp{"skp", "draw SKPs from dir=skps", SKPStream::Create};
struct BenchStream : Stream {
const BenchRegistry* registry = BenchRegistry::Head();
int samples;
static std::unique_ptr<Stream> Create(Options options) {
BenchStream stream;
stream.samples = std::max(1, atoi(options("samples", "20").c_str()));
return move_unique(stream);
}
struct BenchSrc : Src {
Benchmark* (*factory)(void*);
std::unique_ptr<Benchmark> bench;
int samples;
void init() {
if (bench) { return; }
bench.reset(factory(nullptr));
}
std::string name() override {
this->init();
return bench->getName();
}
SkISize size() override {
this->init();
return { bench->getSize().x(), bench->getSize().y() };
}
Status draw(SkCanvas* canvas) override {
this->init();
using ms = std::chrono::duration<double, std::milli>;
std::vector<ms> sample(samples);
bench->delayedSetup();
if (canvas) {
bench->perCanvasPreDraw(canvas);
}
for (int i = 0; i < samples; i++) {
using clock = std::chrono::high_resolution_clock;
for (int loops = 1; loops < 1000000000; loops *= 2) {
bench->preDraw(canvas);
auto start = clock::now();
bench->draw(loops, canvas);
ms elapsed = clock::now() - start;
bench->postDraw(canvas);
if (elapsed.count() < 10) {
continue;
}
sample[i] = elapsed / loops;
break;
}
}
if (canvas) {
bench->perCanvasPostDraw(canvas);
}
std::sort(sample.begin(), sample.end());
SkString msg = SkStringPrintf("%s\t@0", HumanizeMs(sample[0].count()).c_str());
if (samples > 2) {
msg.appendf("\t%s\t@%g", HumanizeMs(sample[samples-2].count()).c_str()
, 100.0*(samples-1) / samples);
}
if (samples > 1) {
msg.appendf("\t%s\t@100", HumanizeMs(sample[samples-1].count()).c_str());
}
ok_log(msg.c_str());
return Status::OK;
}
};
std::unique_ptr<Src> next() override {
if (!registry) {
return nullptr;
}
BenchSrc src;
src.factory = registry->factory();
src.samples = samples;
registry = registry->next();
return move_unique(src);
}
};
static Register bench{
"bench",
"time benchmarks linked into this binary samples=20 times each",
BenchStream::Create,
};
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