blob: b2a4ccba188e52e068c9aae9ad74e9e5949364cc [file] [log] [blame]
/*
* Copyright 2013 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/SkCanvas.h"
#include "include/core/SkPaint.h"
#include "src/base/SkRandom.h"
/**
* Draws full screen opaque rectangles. It is designed to test any optimizations in the GPU backend
* to turn such draws into clears.
*/
class FSRectBench : public Benchmark {
public:
FSRectBench() : fInit(false) { }
protected:
const char* onGetName() override { return "fullscreen_rects"; }
void onDelayedSetup() override {
if (!fInit) {
SkRandom rand;
static const SkScalar kMinOffset = 0;
static const SkScalar kMaxOffset = 100 * SK_Scalar1;
static const SkScalar kOffsetRange = kMaxOffset - kMinOffset;
for (int i = 0; i < N; ++i) {
fRects[i].fLeft = -kMinOffset - rand.nextUScalar1() * kOffsetRange;
fRects[i].fTop = -kMinOffset - rand.nextUScalar1() * kOffsetRange;
fRects[i].fRight = W + kMinOffset + rand.nextUScalar1() * kOffsetRange;
fRects[i].fBottom = H + kMinOffset + rand.nextUScalar1() * kOffsetRange;
fColors[i] = rand.nextU() | 0xFF000000;
}
fInit = true;
}
}
void onDraw(int loops, SkCanvas* canvas) override {
SkPaint paint;
for (int i = 0; i < loops; ++i) {
paint.setColor(fColors[i % N]);
canvas->drawRect(fRects[i % N], paint);
}
}
private:
static constexpr int W = 640;
static constexpr int H = 480;
static constexpr int N = 300;
SkRect fRects[N];
SkColor fColors[N];
bool fInit;
using INHERITED = Benchmark;
};
DEF_BENCH(return new FSRectBench();)