blob: 0e574795dd317edd0736d78ef2efb74b8c15f9e5 [file] [log] [blame]
/*
* Copyright 2011 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "bench/Benchmark.h"
#include "include/core/SkBitmap.h"
#include "include/core/SkCanvas.h"
#include "include/core/SkColorPriv.h"
#include "include/core/SkPaint.h"
#include "include/core/SkPath.h"
#include "include/core/SkShader.h"
#include "include/core/SkString.h"
#include "src/base/SkRandom.h"
#include "src/core/SkPathPriv.h"
enum class PathIterType {
kIter,
kRaw,
kEdge,
};
const char* gPathIterNames[] = {
"iter", "raw", "edge"
};
static int rand_pts(SkRandom& rand, SkPoint pts[4]) {
int n = rand.nextU() & 3;
n += 1;
for (int i = 0; i < n; ++i) {
pts[i].fX = rand.nextSScalar1();
pts[i].fY = rand.nextSScalar1();
}
return n;
}
class PathIterBench : public Benchmark {
SkString fName;
SkPath fPath;
PathIterType fType;
int fVerbInc = 0;
SkScalar fXInc = 0, fYInc = 0;
public:
PathIterBench(PathIterType t) : fType(t) {
fName.printf("pathiter_%s", gPathIterNames[static_cast<unsigned>(t)]);
SkRandom rand;
for (int i = 0; i < 1000; ++i) {
SkPoint pts[4];
int n = rand_pts(rand, pts);
switch (n) {
case 1:
fPath.moveTo(pts[0]);
break;
case 2:
fPath.lineTo(pts[1]);
break;
case 3:
fPath.quadTo(pts[1], pts[2]);
break;
case 4:
fPath.cubicTo(pts[1], pts[2], pts[3]);
break;
}
}
}
bool isSuitableFor(Backend backend) override {
return backend == kNonRendering_Backend;
}
protected:
const char* onGetName() override {
return fName.c_str();
}
void onDraw(int loops, SkCanvas*) override {
// Need to do *something* with the results, so the compile doesn't elide
// away the code we want to time.
auto handle = [this](int verb, const SkPoint pts[]) {
fVerbInc += verb;
fXInc += pts[0].fX;
fYInc += pts[0].fY;
};
switch (fType) {
case PathIterType::kIter:
for (int i = 0; i < loops; ++i) {
SkPath::Iter iter(fPath, true);
SkPath::Verb verb;
SkPoint pts[4];
while ((verb = iter.next(pts)) != SkPath::kDone_Verb) {
handle(verb, pts);
}
}
break;
case PathIterType::kRaw:
for (int i = 0; i < loops; ++i) {
for (auto [verb, pts, w] : SkPathPriv::Iterate(fPath)) {
handle((SkPath::Verb)verb, pts);
}
}
break;
case PathIterType::kEdge:
for (int i = 0; i < loops; ++i) {
SkPathEdgeIter iter(fPath);
while (auto r = iter.next()) {
handle((int)r.fEdge, r.fPts);
}
}
break;
}
}
private:
using INHERITED = Benchmark;
};
///////////////////////////////////////////////////////////////////////////////
DEF_BENCH( return new PathIterBench(PathIterType::kIter); )
DEF_BENCH( return new PathIterBench(PathIterType::kRaw); )
DEF_BENCH( return new PathIterBench(PathIterType::kEdge); )