зеркало из https://github.com/mozilla/moz-skia.git
85 строки
2.8 KiB
C++
85 строки
2.8 KiB
C++
/*
|
|
* 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 "SkBenchmark.h"
|
|
#include "SkCanvas.h"
|
|
#include "SkDevice.h"
|
|
#include "SkMagnifierImageFilter.h"
|
|
#include "SkRandom.h"
|
|
|
|
#define FILTER_WIDTH_SMALL 32
|
|
#define FILTER_HEIGHT_SMALL 32
|
|
#define FILTER_WIDTH_LARGE 256
|
|
#define FILTER_HEIGHT_LARGE 256
|
|
|
|
class MagnifierBench : public SkBenchmark {
|
|
public:
|
|
MagnifierBench(void* param, bool small) :
|
|
INHERITED(param), fIsSmall(small), fInitialized(false) {
|
|
}
|
|
|
|
protected:
|
|
virtual const char* onGetName() SK_OVERRIDE {
|
|
return fIsSmall ? "magnifier_small" : "magnifier_large";
|
|
}
|
|
|
|
virtual void onPreDraw() SK_OVERRIDE {
|
|
if (!fInitialized) {
|
|
make_checkerboard();
|
|
fInitialized = true;
|
|
}
|
|
}
|
|
|
|
virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
|
|
const int w = fIsSmall ? FILTER_WIDTH_SMALL : FILTER_WIDTH_LARGE;
|
|
const int h = fIsSmall ? FILTER_HEIGHT_SMALL : FILTER_HEIGHT_LARGE;
|
|
SkPaint paint;
|
|
paint.setImageFilter(
|
|
new SkMagnifierImageFilter(
|
|
SkRect::MakeXYWH(SkIntToScalar(w / 4),
|
|
SkIntToScalar(h / 4),
|
|
SkIntToScalar(w / 2),
|
|
SkIntToScalar(h / 2)), 100))->unref();
|
|
canvas->drawBitmap(fCheckerboard, 0, 0, &paint);
|
|
}
|
|
|
|
private:
|
|
void make_checkerboard() {
|
|
const int w = fIsSmall ? FILTER_WIDTH_SMALL : FILTER_WIDTH_LARGE;
|
|
const int h = fIsSmall ? FILTER_HEIGHT_LARGE : FILTER_HEIGHT_LARGE;
|
|
fCheckerboard.setConfig(SkBitmap::kARGB_8888_Config, w, h);
|
|
fCheckerboard.allocPixels();
|
|
SkDevice device(fCheckerboard);
|
|
SkCanvas canvas(&device);
|
|
canvas.clear(0x00000000);
|
|
SkPaint darkPaint;
|
|
darkPaint.setColor(0xFF804020);
|
|
SkPaint lightPaint;
|
|
lightPaint.setColor(0xFF244484);
|
|
for (int y = 0; y < h; y += 16) {
|
|
for (int x = 0; x < w; x += 16) {
|
|
canvas.save();
|
|
canvas.translate(SkIntToScalar(x), SkIntToScalar(y));
|
|
canvas.drawRect(SkRect::MakeXYWH(0, 0, 8, 8), darkPaint);
|
|
canvas.drawRect(SkRect::MakeXYWH(8, 0, 8, 8), lightPaint);
|
|
canvas.drawRect(SkRect::MakeXYWH(0, 8, 8, 8), lightPaint);
|
|
canvas.drawRect(SkRect::MakeXYWH(8, 8, 8, 8), darkPaint);
|
|
canvas.restore();
|
|
}
|
|
}
|
|
}
|
|
|
|
bool fIsSmall;
|
|
bool fInitialized;
|
|
SkBitmap fCheckerboard;
|
|
typedef SkBenchmark INHERITED;
|
|
};
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
|
|
DEF_BENCH( return new MagnifierBench(p, true); )
|
|
DEF_BENCH( return new MagnifierBench(p, false); )
|