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84836b799a
skia2/bench/RectBench.cpp
Mike Klein 84836b799a moar static flags 
Like any normal variable, flags can be made file-scoped static,
and like any normal variable, mostly they should be if they can.

This CL converts most flags to be static, if only so that the
ones that do cross files stand out more clearly, and so that
there's more examples of static flags through the codebase for
people to ape.

Change-Id: Ibb5ddd7aa09fce073d0996ac3ef0487b078b7d79
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/202800
Commit-Queue: Mike Klein <mtklein@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Auto-Submit: Mike Klein <mtklein@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
2019-03-21 17:07:13 +00:00

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/*
* 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 "CommandLineFlags.h"
#include "SkBitmap.h"
#include "SkCanvas.h"
#include "SkGradientShader.h"
#include "SkPaint.h"
#include "SkRandom.h"
#include "SkShader.h"
#include "SkString.h"
static DEFINE_double(strokeWidth, -1.0, "If set, use this stroke width in RectBench.");
class RectBench : public Benchmark {
public:
int fShift, fStroke;
enum {
W = 640,
H = 480,
N = 300,
};
SkRect fRects[N];
SkColor fColors[N];
bool fAA;
bool fPerspective;
RectBench(int shift, int stroke = 0, bool aa = true, bool perspective = false)
: fShift(shift)
, fStroke(stroke)
, fAA(aa)
, fPerspective(perspective) {}
const char* computeName(const char root[]) {
fBaseName.printf("%s_%d", root, fShift);
if (fStroke > 0) {
fBaseName.appendf("_stroke_%d", fStroke);
}
if (fAA) {
fBaseName.appendf("_aa");
} else {
fBaseName.appendf("_bw");
}
if (fPerspective) {
fBaseName.appendf("_persp");
}
return fBaseName.c_str();
}
protected:
virtual void drawThisRect(SkCanvas* c, const SkRect& r, const SkPaint& p) {
c->drawRect(r, p);
}
const char* onGetName() override { return computeName("rects"); }
void onDelayedSetup() override {
SkRandom rand;
const SkScalar offset = SK_Scalar1/3;
for (int i = 0; i < N; i++) {
int x = rand.nextU() % W;
int y = rand.nextU() % H;
int w = rand.nextU() % W;
int h = rand.nextU() % H;
w >>= fShift;
h >>= fShift;
x -= w/2;
y -= h/2;
fRects[i].set(SkIntToScalar(x), SkIntToScalar(y),
SkIntToScalar(x+w), SkIntToScalar(y+h));
fRects[i].offset(offset, offset);
fColors[i] = rand.nextU() | 0xFF808080;
}
}
void onDraw(int loops, SkCanvas* canvas) override {
SkPaint paint;
if (fStroke > 0) {
paint.setStyle(SkPaint::kStroke_Style);
paint.setStrokeWidth(SkIntToScalar(fStroke));
}
if (fPerspective) {
// Apply some fixed perspective to change how ops may draw the rects
SkMatrix perspective;
perspective.setIdentity();
perspective.setPerspX(1e-4f);
perspective.setPerspY(1e-3f);
perspective.setSkewX(0.1f);
canvas->concat(perspective);
}
for (int i = 0; i < loops; i++) {
paint.setColor(fColors[i % N]);
this->setupPaint(&paint);
this->drawThisRect(canvas, fRects[i % N], paint);
}
}
void setupPaint(SkPaint* paint) override {
this->INHERITED::setupPaint(paint);
paint->setAntiAlias(fAA);
}
private:
SkString fBaseName;
typedef Benchmark INHERITED;
};
class SrcModeRectBench : public RectBench {
public:
SrcModeRectBench() : INHERITED(1, 0) {
fMode = SkBlendMode::kSrc;
}
protected:
void setupPaint(SkPaint* paint) override {
this->INHERITED::setupPaint(paint);
// srcmode is most interesting when we're not opaque
paint->setAlpha(0x80);
paint->setBlendMode(fMode);
}
const char* onGetName() override {
fName.set(this->INHERITED::onGetName());
fName.prepend("srcmode_");
return fName.c_str();
}
private:
SkBlendMode fMode;
SkString fName;
typedef RectBench INHERITED;
};
class TransparentRectBench : public RectBench {
public:
TransparentRectBench() : INHERITED(1, 0) {}
protected:
void setupPaint(SkPaint* paint) override {
this->INHERITED::setupPaint(paint);
// draw non opaque rect
paint->setAlpha(0x80);
}
const char* onGetName() override {
fName.set(this->INHERITED::onGetName());
fName.prepend("transparent_");
return fName.c_str();
}
private:
SkString fName;
typedef RectBench INHERITED;
};
// Adds a shader to the paint that requires local coordinates to be used
class LocalCoordsRectBench : public RectBench {
public:
LocalCoordsRectBench(bool aa, bool perspective = false) : INHERITED(1, 0, aa, perspective) { }
protected:
void onDelayedSetup() override {
this->INHERITED::onDelayedSetup();
// Create the shader once, so that isn't included in the timing
SkPoint pts[2] = { {0.f, 0.f}, {50.f, 50.f} };
SkColor colors[] = { SK_ColorWHITE, SK_ColorBLUE };
fShader = SkGradientShader::MakeLinear(pts, colors, nullptr, 2, SkShader::kClamp_TileMode);
}
void setupPaint(SkPaint* paint) override {
this->INHERITED::setupPaint(paint);
paint->setShader(fShader);
}
const char* onGetName() override {
fName.set(this->INHERITED::onGetName());
fName.append("_localcoords");
return fName.c_str();
}
private:
SkString fName;
sk_sp<SkShader> fShader;
typedef RectBench INHERITED;
};
class OvalBench : public RectBench {
public:
OvalBench(int shift, int stroke = 0) : RectBench(shift, stroke) {}
protected:
void drawThisRect(SkCanvas* c, const SkRect& r, const SkPaint& p) override {
c->drawOval(r, p);
}
const char* onGetName() override { return computeName("ovals"); }
};
class RRectBench : public RectBench {
public:
RRectBench(int shift, int stroke = 0) : RectBench(shift, stroke) {}
protected:
void drawThisRect(SkCanvas* c, const SkRect& r, const SkPaint& p) override {
c->drawRoundRect(r, r.width() / 4, r.height() / 4, p);
}
const char* onGetName() override { return computeName("rrects"); }
};
class PointsBench : public RectBench {
public:
SkCanvas::PointMode fMode;
PointsBench(SkCanvas::PointMode mode, const char* name)
: RectBench(2)
, fMode(mode) {
fName = name;
}
protected:
void onDraw(int loops, SkCanvas* canvas) override {
SkScalar gSizes[] = {
SkIntToScalar(7), 0
};
size_t sizes = SK_ARRAY_COUNT(gSizes);
if (FLAGS_strokeWidth >= 0) {
gSizes[0] = (SkScalar)FLAGS_strokeWidth;
sizes = 1;
}
SkPaint paint;
paint.setStrokeCap(SkPaint::kRound_Cap);
for (int loop = 0; loop < loops; loop++) {
for (size_t i = 0; i < sizes; i++) {
paint.setStrokeWidth(gSizes[i]);
this->setupPaint(&paint);
canvas->drawPoints(fMode, N * 2, reinterpret_cast<SkPoint*>(fRects), paint);
paint.setColor(fColors[i % N]);
}
}
}
const char* onGetName() override { return fName.c_str(); }
private:
SkString fName;
};
/*******************************************************************************
* to bench BlitMask [Opaque, Black, color, shader]
*******************************************************************************/
class BlitMaskBench : public RectBench {
public:
enum kMaskType {
kMaskOpaque = 0,
kMaskBlack,
kMaskColor,
KMaskShader
};
SkCanvas::PointMode fMode;
BlitMaskBench(SkCanvas::PointMode mode,
BlitMaskBench::kMaskType type, const char* name) :
RectBench(2), fMode(mode), _type(type) {
fName = name;
}
protected:
void onDraw(int loops, SkCanvas* canvas) override {
SkScalar gSizes[] = {
SkIntToScalar(13), SkIntToScalar(24)
};
size_t sizes = SK_ARRAY_COUNT(gSizes);
if (FLAGS_strokeWidth >= 0) {
gSizes[0] = (SkScalar)FLAGS_strokeWidth;
sizes = 1;
}
SkRandom rand;
SkColor color = 0xFF000000;
U8CPU alpha = 0xFF;
SkPaint paint;
paint.setStrokeCap(SkPaint::kRound_Cap);
if (_type == KMaskShader) {
SkBitmap srcBM;
srcBM.allocN32Pixels(10, 1);
srcBM.eraseColor(0xFF00FF00);
paint.setShader(SkShader::MakeBitmapShader(srcBM, SkShader::kClamp_TileMode,
SkShader::kClamp_TileMode));
}
for (int loop = 0; loop < loops; loop++) {
for (size_t i = 0; i < sizes; i++) {
switch (_type) {
case kMaskOpaque:
color = fColors[i];
alpha = 0xFF;
break;
case kMaskBlack:
alpha = 0xFF;
color = 0xFF000000;
break;
case kMaskColor:
color = fColors[i];
alpha = rand.nextU() & 255;
break;
case KMaskShader:
break;
}
paint.setStrokeWidth(gSizes[i]);
this->setupPaint(&paint);
paint.setColor(color);
paint.setAlpha(alpha);
canvas->drawPoints(fMode, N * 2, reinterpret_cast<SkPoint*>(fRects), paint);
}
}
}
const char* onGetName() override { return fName.c_str(); }
private:
typedef RectBench INHERITED;
kMaskType _type;
SkString fName;
};
// AA rects
DEF_BENCH(return new RectBench(1, 0, true);)
DEF_BENCH(return new RectBench(1, 4, true);)
DEF_BENCH(return new RectBench(3, 0, true);)
DEF_BENCH(return new RectBench(3, 4, true);)
// Non-AA rects
DEF_BENCH(return new RectBench(1, 0, false);)
DEF_BENCH(return new RectBench(1, 4, false);)
DEF_BENCH(return new RectBench(3, 0, false);)
DEF_BENCH(return new RectBench(3, 4, false);)
DEF_BENCH(return new OvalBench(1);)
DEF_BENCH(return new OvalBench(3);)
DEF_BENCH(return new OvalBench(1, 4);)
DEF_BENCH(return new OvalBench(3, 4);)
DEF_BENCH(return new RRectBench(1);)
DEF_BENCH(return new RRectBench(1, 4);)
DEF_BENCH(return new RRectBench(3);)
DEF_BENCH(return new RRectBench(3, 4);)
DEF_BENCH(return new PointsBench(SkCanvas::kPoints_PointMode, "points");)
DEF_BENCH(return new PointsBench(SkCanvas::kLines_PointMode, "lines");)
DEF_BENCH(return new PointsBench(SkCanvas::kPolygon_PointMode, "polygon");)
DEF_BENCH(return new SrcModeRectBench();)
DEF_BENCH(return new TransparentRectBench();)
DEF_BENCH(return new LocalCoordsRectBench(true);)
DEF_BENCH(return new LocalCoordsRectBench(false);)
// Perspective rects
DEF_BENCH(return new RectBench(1, 0, true, true);)
DEF_BENCH(return new RectBench(1, 0, false, true);)
DEF_BENCH(return new LocalCoordsRectBench(true, true);)
DEF_BENCH(return new LocalCoordsRectBench(false, true);)
/* init the blitmask bench
*/
DEF_BENCH(return new BlitMaskBench(SkCanvas::kPoints_PointMode,
BlitMaskBench::kMaskOpaque,
"maskopaque");)
DEF_BENCH(return new BlitMaskBench(SkCanvas::kPoints_PointMode,
BlitMaskBench::kMaskBlack,
"maskblack");)
DEF_BENCH(return new BlitMaskBench(SkCanvas::kPoints_PointMode,
BlitMaskBench::kMaskColor,
"maskcolor");)
DEF_BENCH(return new BlitMaskBench(SkCanvas::kPoints_PointMode,
BlitMaskBench::KMaskShader,
"maskshader");)
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