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/*
* Copyright 2012 The Android Open Source Project
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "Benchmark.h"
#include "SkBitmap.h"
#include "SkCanvas.h"
/**
* This bench mark tests the use case where the user writes the a canvas
* and then reads small chunks from it repeatedly. This can cause trouble
* for the GPU as readbacks are very expensive.
*/
class ReadPixBench : public Benchmark {
public:
ReadPixBench() {}
protected:
const char* onGetName() override {
return "readpix";
}
void onDraw(int loops, SkCanvas* canvas) override {
canvas->clear(SK_ColorBLACK);
SkISize size = canvas->getBaseLayerSize();
int offX = (size.width() - kWindowSize) / kNumStepsX;
int offY = (size.height() - kWindowSize) / kNumStepsY;
SkPaint paint;
paint.setColor(SK_ColorBLUE);
canvas->drawCircle(SkIntToScalar(size.width()/2),
SkIntToScalar(size.height()/2),
SkIntToScalar(size.width()/2),
paint);
SkBitmap bitmap;
bitmap.allocPixels(SkImageInfo::MakeN32Premul(kWindowSize, kWindowSize));
for (int i = 0; i < loops; i++) {
for (int x = 0; x < kNumStepsX; ++x) {
for (int y = 0; y < kNumStepsY; ++y) {
canvas->readPixels(bitmap.info(), bitmap.getPixels(), bitmap.rowBytes(),
x * offX, y * offY);
}
}
}
}
private:
static const int kNumStepsX = 30;
static const int kNumStepsY = 30;
static const int kWindowSize = 5;
typedef Benchmark INHERITED;
};
DEF_BENCH( return new ReadPixBench(); )
////////////////////////////////////////////////////////////////////////////////
#include "SkBitmap.h"
#include "SkPixmapPriv.h"
class PixmapOrientBench : public Benchmark {
public:
PixmapOrientBench() {}
protected:
void onDelayedSetup() override {
const SkImageInfo info = SkImageInfo::MakeN32Premul(2048, 1024);
fSrc.allocPixels(info);
fSrc.eraseColor(SK_ColorBLACK);
fDst.allocPixels(info.makeWH(info.height(), info.width()));
}
const char* onGetName() override {
return "orient_pixmap";
}
bool isSuitableFor(Backend backend) override {
return backend == kNonRendering_Backend;
}
void onDraw(int loops, SkCanvas*) override {
const SkPixmapPriv::OrientFlags flags = SkPixmapPriv::kSwapXY;
SkPixmap src, dst;
fSrc.peekPixels(&src);
fDst.peekPixels(&dst);
for (int i = 0; i < loops; ++i) {
SkPixmapPriv::Orient(dst, src, flags);
}
}
private:
SkBitmap fSrc, fDst;
typedef Benchmark INHERITED;
};
DEF_BENCH( return new PixmapOrientBench(); )
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