skia2/bench/BlurBench.cpp
Herb Derby 35c556f33e Revert "Revert "Direct evaluation of gaussian""
This reverts commit a53d999007.

Reason for revert: Bug in SkNx_sse fixed.

Original change's description:
> Revert "Direct evaluation of gaussian"
>
> This reverts commit 5e18cdea0a.
>
> Reason for revert: ASAN
> Original change's description:
> > Direct evaluation of gaussian
> >
> > The SVG(CSS) standard allows the 3 pass algorithm for sigma >= 2. But
> > sigma < 2, the code must evaluate to the convolution. The old code used
> > an interpolation scheme between windowed filters. This code directly
> > evaluates the gaussian kernel for sigma < 2.
> >
> > This code produces cleaner results, is 25% faster, and does not use a
> > temporary memory buffer.
> >
> > Change-Id: Ibd0caa73cadd06b637f55ba7bd4fefcfe7ac73db
> > Reviewed-on: https://skia-review.googlesource.com/62540
> > Commit-Queue: Herb Derby <herb@google.com>
> > Reviewed-by: Mike Klein <mtklein@google.com>
>
> TBR=mtklein@google.com,herb@google.com
>
> Change-Id: I936077dfa659d71bc361339d98340c55545a1eb8
> No-Presubmit: true
> No-Tree-Checks: true
> No-Try: true
> Reviewed-on: https://skia-review.googlesource.com/72481
> Reviewed-by: Brian Osman <brianosman@google.com>
> Commit-Queue: Brian Osman <brianosman@google.com>

TBR=mtklein@google.com,herb@google.com,brianosman@google.com

Change-Id: I4c30e3481308a8148d40223519e286885ec6f880
Reviewed-on: https://skia-review.googlesource.com/72900
Commit-Queue: Herb Derby <herb@google.com>
Reviewed-by: Herb Derby <herb@google.com>
2017-11-16 22:46:09 +00:00

119 lines
4.0 KiB
C++

/*
* 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 "Benchmark.h"
#include "SkBlurMask.h"
#include "SkBlurMaskFilter.h"
#include "SkCanvas.h"
#include "SkPaint.h"
#include "SkRandom.h"
#include "SkShader.h"
#include "SkString.h"
#define MINI 0.01f
#define SMALL SkIntToScalar(2)
#define REAL 0.5f
#define BIG SkIntToScalar(10)
#define REALBIG 100.5f
// The value that produces a sigma of just over 2.
#define CUTOVER 2.6f
static const char* gStyleName[] = {
"normal",
"solid",
"outer",
"inner"
};
class BlurBench : public Benchmark {
SkScalar fRadius;
SkBlurStyle fStyle;
uint32_t fFlags;
SkString fName;
public:
BlurBench(SkScalar rad, SkBlurStyle bs, uint32_t flags = 0) {
fRadius = rad;
fStyle = bs;
fFlags = flags;
const char* name = rad > 0 ? gStyleName[bs] : "none";
const char* quality = flags & SkBlurMaskFilter::kHighQuality_BlurFlag ? "high_quality"
: "low_quality";
if (SkScalarFraction(rad) != 0) {
fName.printf("blur_%.2f_%s_%s", SkScalarToFloat(rad), name, quality);
} else {
fName.printf("blur_%d_%s_%s", SkScalarRoundToInt(rad), name, quality);
}
}
protected:
virtual const char* onGetName() {
return fName.c_str();
}
virtual void onDraw(int loops, SkCanvas* canvas) {
SkPaint paint;
this->setupPaint(&paint);
paint.setAntiAlias(true);
SkRandom rand;
for (int i = 0; i < loops; i++) {
SkRect r = SkRect::MakeWH(rand.nextUScalar1() * 400,
rand.nextUScalar1() * 400);
r.offset(fRadius, fRadius);
if (fRadius > 0) {
paint.setMaskFilter(SkBlurMaskFilter::Make(fStyle,
SkBlurMask::ConvertRadiusToSigma(fRadius),
fFlags));
}
canvas->drawOval(r, paint);
}
}
private:
typedef Benchmark INHERITED;
};
DEF_BENCH(return new BlurBench(MINI, kNormal_SkBlurStyle);)
DEF_BENCH(return new BlurBench(MINI, kSolid_SkBlurStyle);)
DEF_BENCH(return new BlurBench(MINI, kOuter_SkBlurStyle);)
DEF_BENCH(return new BlurBench(MINI, kInner_SkBlurStyle);)
DEF_BENCH(return new BlurBench(SMALL, kNormal_SkBlurStyle);)
DEF_BENCH(return new BlurBench(SMALL, kSolid_SkBlurStyle);)
DEF_BENCH(return new BlurBench(SMALL, kOuter_SkBlurStyle);)
DEF_BENCH(return new BlurBench(SMALL, kInner_SkBlurStyle);)
DEF_BENCH(return new BlurBench(BIG, kNormal_SkBlurStyle);)
DEF_BENCH(return new BlurBench(BIG, kSolid_SkBlurStyle);)
DEF_BENCH(return new BlurBench(BIG, kOuter_SkBlurStyle);)
DEF_BENCH(return new BlurBench(BIG, kInner_SkBlurStyle);)
DEF_BENCH(return new BlurBench(REALBIG, kNormal_SkBlurStyle);)
DEF_BENCH(return new BlurBench(REALBIG, kSolid_SkBlurStyle);)
DEF_BENCH(return new BlurBench(REALBIG, kOuter_SkBlurStyle);)
DEF_BENCH(return new BlurBench(REALBIG, kInner_SkBlurStyle);)
DEF_BENCH(return new BlurBench(REAL, kNormal_SkBlurStyle);)
DEF_BENCH(return new BlurBench(REAL, kSolid_SkBlurStyle);)
DEF_BENCH(return new BlurBench(REAL, kOuter_SkBlurStyle);)
DEF_BENCH(return new BlurBench(REAL, kInner_SkBlurStyle);)
DEF_BENCH(return new BlurBench(MINI, kNormal_SkBlurStyle, SkBlurMaskFilter::kHighQuality_BlurFlag);)
DEF_BENCH(return new BlurBench(SMALL, kNormal_SkBlurStyle, SkBlurMaskFilter::kHighQuality_BlurFlag);)
DEF_BENCH(return new BlurBench(BIG, kNormal_SkBlurStyle, SkBlurMaskFilter::kHighQuality_BlurFlag);)
DEF_BENCH(return new BlurBench(REALBIG, kNormal_SkBlurStyle, SkBlurMaskFilter::kHighQuality_BlurFlag);)
DEF_BENCH(return new BlurBench(REAL, kNormal_SkBlurStyle, SkBlurMaskFilter::kHighQuality_BlurFlag);)
DEF_BENCH(return new BlurBench(CUTOVER, kNormal_SkBlurStyle, SkBlurMaskFilter::kHighQuality_BlurFlag);)
DEF_BENCH(return new BlurBench(0, kNormal_SkBlurStyle);)