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BlurCircles2GM Class Reference
Inheritance diagram for BlurCircles2GM:
skiagm::GM

Public Member Functions

 BlurCircles2GM ()
 
- Public Member Functions inherited from skiagm::GM
 GM (SkColor backgroundColor=SK_ColorWHITE)
 
virtual ~GM ()
 
void setMode (Mode mode)
 
Mode getMode () const
 
DrawResult gpuSetup (SkCanvas *, SkString *errorMsg, GraphiteTestContext *=nullptr)
 
void gpuTeardown ()
 
void onceBeforeDraw ()
 
DrawResult draw (SkCanvas *canvas)
 
DrawResult draw (SkCanvas *, SkString *errorMsg)
 
void drawBackground (SkCanvas *)
 
DrawResult drawContent (SkCanvas *canvas)
 
DrawResult drawContent (SkCanvas *, SkString *errorMsg)
 
virtual SkISize getISize ()=0
 
virtual SkString getName () const =0
 
virtual bool runAsBench () const
 
SkScalar width ()
 
SkScalar height ()
 
SkColor getBGColor () const
 
void setBGColor (SkColor)
 
void drawSizeBounds (SkCanvas *, SkColor)
 
bool animate (double)
 
virtual bool onChar (SkUnichar)
 
bool getControls (SkMetaData *controls)
 
void setControls (const SkMetaData &controls)
 
virtual void modifyGrContextOptions (GrContextOptions *)
 
virtual void modifyGraphiteContextOptions (skgpu::graphite::ContextOptions *) const
 
virtual bool isBazelOnly () const
 
virtual std::map< std::string, std::string > getGoldKeys () const
 

Protected Member Functions

bool runAsBench () const override
 
SkString getName () const override
 
SkISize getISize () override
 
void onDraw (SkCanvas *canvas) override
 
bool onAnimate (double nanos) override
 
- Protected Member Functions inherited from skiagm::GM
virtual DrawResult onGpuSetup (SkCanvas *, SkString *, GraphiteTestContext *)
 
virtual void onGpuTeardown ()
 
virtual void onOnceBeforeDraw ()
 
virtual DrawResult onDraw (SkCanvas *, SkString *errorMsg)
 
virtual void onDraw (SkCanvas *)
 
virtual bool onAnimate (double)
 
virtual bool onGetControls (SkMetaData *)
 
virtual void onSetControls (const SkMetaData &)
 
GraphiteTestContext * graphiteTestContext () const
 

Additional Inherited Members

- Public Types inherited from skiagm::GM
enum  Mode { kGM_Mode , kSample_Mode , kBench_Mode }
 
using DrawResult = skiagm::DrawResult
 
using GraphiteTestContext = skiatest::graphite::GraphiteTestContext
 
- Static Public Attributes inherited from skiagm::GM
static constexpr char kErrorMsg_DrawSkippedGpuOnly []
 

Detailed Description

In GM mode this draws an array of circles with different radii and different blur radii. Below each circle an almost-circle path is drawn with the same blur filter for comparison.

In Sample mode this draws a single circle and almost-circle with animating radius and blur radius.

Bench mode draws the same as GM mode but without the comparison almost-circle paths. It also slightly perturbs the blur and circle radii to stress caching of blurred profiles in GPU mode.

Definition at line 34 of file blurcircles2.cpp.

Constructor & Destructor Documentation

◆ BlurCircles2GM()

BlurCircles2GM::BlurCircles2GM ( )
inline

Definition at line 36 of file blurcircles2.cpp.

36 {
37 fAnimRadius = TimeUtils::PingPong(
38 0, kRadiusPingPoingPeriod, kRadiusPingPoingShift, kMinRadius, kMaxRadius);
39 fAnimBlurRadius = TimeUtils::PingPong(0,
40 kBlurRadiusPingPoingPeriod,
41 kBlurRadiusPingPoingShift,
42 kMinBlurRadius,
43 kMaxBlurRadius);
44 }
TimeUtils::PingPong
static float PingPong(double time, float period, float phase, float ends, float mid)
Definition: TimeUtils.h:37

Member Function Documentation

◆ getISize()

SkISize BlurCircles2GM::getISize ( )
inlineoverrideprotectedvirtual

Implements skiagm::GM.

Definition at line 51 of file blurcircles2.cpp.

51{ return SkISize::Make(730, 1350); }
SkISize::Make
static constexpr SkISize Make(int32_t w, int32_t h)
Definition: SkSize.h:20

◆ getName()

SkString BlurCircles2GM::getName ( ) const
inlineoverrideprotectedvirtual

Implements skiagm::GM.

Definition at line 49 of file blurcircles2.cpp.

49{ return SkString("blurcircles2"); }

◆ onAnimate()

bool BlurCircles2GM::onAnimate ( double  nanos)
inlineoverrideprotectedvirtual

Reimplemented from skiagm::GM.

Definition at line 141 of file blurcircles2.cpp.

141 {
142 fAnimRadius = TimeUtils::PingPong(1e-9 * nanos, kRadiusPingPoingPeriod, kRadiusPingPoingShift, kMinRadius,
143 kMaxRadius);
144 fAnimBlurRadius = TimeUtils::PingPong(1e-9 * nanos, kBlurRadiusPingPoingPeriod, kBlurRadiusPingPoingShift,
145 kMinBlurRadius, kMaxBlurRadius);
146 return true;
147 }
protoc_wrapper.e
e
Definition: protoc_wrapper.py:226

◆ onDraw()

void BlurCircles2GM::onDraw ( SkCanvas *  canvas)
inlineoverrideprotectedvirtual

Reimplemented from skiagm::GM.

Definition at line 53 of file blurcircles2.cpp.

53 {
54 constexpr SkScalar kMaxR = kMaxRadius + kMaxBlurRadius;
55
56 auto almostCircleMaker = [] (SkScalar radius) {
57 return SkPathBuilder().addArc(SkRect::MakeXYWH(-radius, -radius, 2 * radius, 2 * radius), 0, 355)
58 .setIsVolatile(true)
59 .close()
60 .detach();
61 };
62
63 auto blurMaker = [] (SkScalar radius) ->sk_sp<SkMaskFilter> {
64 return SkMaskFilter::MakeBlur(kNormal_SkBlurStyle,
65 SkBlurMask::ConvertRadiusToSigma(radius));
66 };
67
68 SkPaint paint;
69 paint.setColor(SK_ColorBLACK);
70
71 if (this->getMode() == kSample_Mode) {
72 paint.setMaskFilter(blurMaker(fAnimBlurRadius));
73 SkISize size = canvas->getBaseLayerSize();
74 SkPath almostCircle = almostCircleMaker(fAnimRadius);
75 canvas->save();
76 canvas->translate(size.fWidth / 2.f, size.fHeight / 4.f);
77 canvas->drawCircle(0, 0, fAnimRadius, paint);
78 canvas->translate(0, 2 * kMaxR);
79 canvas->drawPath(almostCircle, paint);
80 canvas->restore();
81 } else {
82 bool benchMode = this->getMode() == kBench_Mode;
83 canvas->save();
84 constexpr SkScalar kPad = 5;
85 constexpr SkScalar kRadiusSteps = 5;
86 constexpr SkScalar kBlurRadiusSteps = 5;
87 canvas->translate(kPad + kMinRadius + kMaxBlurRadius,
88 kPad + kMinRadius + kMaxBlurRadius);
89 constexpr SkScalar kDeltaRadius = (kMaxRadius - kMinRadius) / kRadiusSteps;
90 constexpr SkScalar kDeltaBlurRadius = (kMaxBlurRadius - kMinBlurRadius) /
91 kBlurRadiusSteps;
92 SkScalar lineWidth = 0;
93 if (!benchMode) {
94 for (int r = 0; r < kRadiusSteps - 1; ++r) {
95 const SkScalar radius = r * kDeltaRadius + kMinRadius;
96 lineWidth += 2 * (radius + kMaxBlurRadius) + kPad;
97 }
98 }
99 for (int br = 0; br < kBlurRadiusSteps; ++br) {
100 SkScalar blurRadius = br * kDeltaBlurRadius + kMinBlurRadius;
101 if (benchMode) {
102 blurRadius += fRandom.nextSScalar1() * kDeltaBlurRadius;
103 }
104 const SkScalar maxRowR = blurRadius + kMaxRadius;
105 paint.setMaskFilter(blurMaker(blurRadius));
106 canvas->save();
107 for (int r = 0; r < kRadiusSteps; ++r) {
108 SkScalar radius = r * kDeltaRadius + kMinRadius;
109 if (benchMode) {
110 radius += fRandom.nextSScalar1() * kDeltaRadius;
111 }
112 SkPath almostCircle;
113 if (!benchMode) {
114 almostCircle = almostCircleMaker(radius);
115 }
116 canvas->save();
117 canvas->drawCircle(0, 0, radius, paint);
118 canvas->translate(0, 2 * maxRowR + kPad);
119 if (!benchMode) {
120 canvas->drawPath(almostCircle, paint);
121 }
122 canvas->restore();
123 const SkScalar maxColR = radius + kMaxBlurRadius;
124 canvas->translate(maxColR * 2 + kPad, 0);
125 }
126 canvas->restore();
127 if (!benchMode) {
128 SkPaint blackPaint;
129 blackPaint.setColor(SK_ColorBLACK);
130 const SkScalar lineY = 3 * maxRowR + 1.5f * kPad;
131 if (br != kBlurRadiusSteps - 1) {
132 canvas->drawLine(0, lineY, lineWidth, lineY, blackPaint);
133 }
134 }
135 canvas->translate(0, maxRowR * 4 + 2 * kPad);
136 }
137 canvas->restore();
138 }
139 }
kNormal_SkBlurStyle
@ kNormal_SkBlurStyle
fuzzy inside and outside
Definition: SkBlurTypes.h:12
SK_ColorBLACK
constexpr SkColor SK_ColorBLACK
Definition: SkColor.h:103
kPad
constexpr int kPad
Definition: bc1_transparency.cpp:24
SkBlurMask::ConvertRadiusToSigma
static SkScalar SK_SPI ConvertRadiusToSigma(SkScalar radius)
Definition: SkBlurMask.cpp:39
SkCanvas::restore
void restore()
Definition: SkCanvas.cpp:461
SkCanvas::translate
void translate(SkScalar dx, SkScalar dy)
Definition: SkCanvas.cpp:1278
SkCanvas::drawLine
void drawLine(SkScalar x0, SkScalar y0, SkScalar x1, SkScalar y1, const SkPaint &paint)
Definition: SkCanvas.cpp:2700
SkCanvas::getBaseLayerSize
virtual SkISize getBaseLayerSize() const
Definition: SkCanvas.cpp:369
SkCanvas::save
int save()
Definition: SkCanvas.cpp:447
SkCanvas::drawPath
void drawPath(const SkPath &path, const SkPaint &paint)
Definition: SkCanvas.cpp:1747
SkCanvas::drawCircle
void drawCircle(SkScalar cx, SkScalar cy, SkScalar radius, const SkPaint &paint)
Definition: SkCanvas.cpp:2707
SkMaskFilter::MakeBlur
static sk_sp< SkMaskFilter > MakeBlur(SkBlurStyle style, SkScalar sigma, bool respectCTM=true)
Definition: SkBlurMaskFilterImpl.cpp:535
SkPaint::setColor
void setColor(SkColor color)
Definition: SkPaint.cpp:119
SkPaint::setMaskFilter
void setMaskFilter(sk_sp< SkMaskFilter > maskFilter)
SkPathBuilder::close
SkPathBuilder & close()
Definition: SkPathBuilder.cpp:155
SkPathBuilder::addArc
SkPathBuilder & addArc(const SkRect &oval, SkScalar startAngleDeg, SkScalar sweepAngleDeg)
Definition: SkPathBuilder.cpp:394
SkPathBuilder::setIsVolatile
SkPathBuilder & setIsVolatile(bool isVolatile)
Definition: SkPathBuilder.h:43
SkPath
Definition: SkPath.h:59
SkRandom::nextSScalar1
SkScalar nextSScalar1()
Definition: SkRandom.h:113
sk_sp< SkMaskFilter >
skiagm::GM::kBench_Mode
@ kBench_Mode
Definition: gm.h:121
skiagm::GM::kSample_Mode
@ kSample_Mode
Definition: gm.h:120
skiagm::GM::getMode
Mode getMode() const
Definition: gm.h:125
paint
const Paint & paint
Definition: color_source.cc:38
SkScalar
float SkScalar
Definition: extension.cpp:12
flutter::size
it will be possible to load the file into Perfetto s trace viewer disable asset Prevents usage of any non test fonts unless they were explicitly Loaded via prefetched default font Indicates whether the embedding started a prefetch of the default font manager before creating the engine run In non interactive keep the shell running after the Dart script has completed enable serial On low power devices with low core running concurrent GC tasks on threads can cause them to contend with the UI thread which could potentially lead to jank This option turns off all concurrent GC activities domain network JSON encoded network policy per domain This overrides the DisallowInsecureConnections switch Embedder can specify whether to allow or disallow insecure connections at a domain level old gen heap size
Definition: switches.h:259
SkISize
Definition: SkSize.h:16
SkRect::MakeXYWH
static constexpr SkRect MakeXYWH(float x, float y, float w, float h)
Definition: SkRect.h:659

◆ runAsBench()

bool BlurCircles2GM::runAsBench ( ) const
inlineoverrideprotectedvirtual

Reimplemented from skiagm::GM.

Definition at line 47 of file blurcircles2.cpp.

47{ return true; }
The documentation for this class was generated from the following file:
Generated on Sun Jun 23 2024 21:57:52 for Flutter Engine by doxygen 1.9.4