05a2ee052c
git-svn-id: http://skia.googlecode.com/svn/trunk@8477 2bbb7eff-a529-9590-31e7-b0007b416f81
71 lines
2.3 KiB
C++
71 lines
2.3 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 "SkPaint.h"
|
|
#include "SkRandom.h"
|
|
#include "SkString.h"
|
|
#include "SkXfermode.h"
|
|
|
|
// Benchmark that draws non-AA rects with an SkXfermode::Mode
|
|
class XfermodeBench : public SkBenchmark {
|
|
public:
|
|
XfermodeBench(void* param, SkXfermode::Mode mode) : SkBenchmark(param) {
|
|
fXfermode.reset(SkXfermode::Create(mode));
|
|
SkASSERT(NULL != fXfermode.get() || SkXfermode::kSrcOver_Mode == mode);
|
|
fName.printf("Xfermode_%s", SkXfermode::ModeName(mode));
|
|
}
|
|
|
|
protected:
|
|
virtual const char* onGetName() SK_OVERRIDE { return fName.c_str(); }
|
|
|
|
virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
|
|
SkISize size = canvas->getDeviceSize();
|
|
SkMWCRandom random;
|
|
for (int i = 0; i < kNumRects; ++i) {
|
|
SkPaint paint;
|
|
paint.setXfermode(fXfermode.get());
|
|
paint.setColor(random.nextU());
|
|
SkScalar w = random.nextRangeScalar(SkIntToScalar(kMinSize), SkIntToScalar(kMaxSize));
|
|
SkScalar h = random.nextRangeScalar(SkIntToScalar(kMinSize), SkIntToScalar(kMaxSize));
|
|
SkRect rect = SkRect::MakeXYWH(
|
|
random.nextUScalar1() * (size.fWidth - w),
|
|
random.nextUScalar1() * (size.fHeight - h),
|
|
w,
|
|
h
|
|
);
|
|
canvas->drawRect(rect, paint);
|
|
}
|
|
}
|
|
|
|
private:
|
|
enum {
|
|
kNumRects = SkBENCHLOOP(1000),
|
|
kMinSize = 10,
|
|
kMaxSize = 400,
|
|
};
|
|
SkAutoTUnref<SkXfermode> fXfermode;
|
|
SkString fName;
|
|
|
|
typedef SkBenchmark INHERITED;
|
|
};
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
|
|
|
|
// These modes were chosen because they are expected to be successively harder for the GPU.
|
|
// kSrc can disable blending, kSrcOver cannot, kDarken requires reading the dst pixel in the shader.
|
|
static SkBenchmark* Fact0(void* p) { return new XfermodeBench(p, SkXfermode::kSrc_Mode); }
|
|
static SkBenchmark* Fact1(void* p) { return new XfermodeBench(p, SkXfermode::kSrcOver_Mode); }
|
|
static SkBenchmark* Fact2(void* p) { return new XfermodeBench(p, SkXfermode::kDarken_Mode); }
|
|
|
|
static BenchRegistry gReg0(Fact0);
|
|
static BenchRegistry gReg1(Fact1);
|
|
static BenchRegistry gReg2(Fact2);
|