Flutter Engine
The Flutter Engine
Public Member Functions | Protected Member Functions | List of all members
DrawAtlasColorsGM Class Reference
Inheritance diagram for DrawAtlasColorsGM:
skiagm::GM

Public Member Functions

 DrawAtlasColorsGM ()
 
- 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

SkString getName () const override
 
SkISize getISize () override
 
void onDraw (SkCanvas *canvas) 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 &)
 
GraphiteTestContextgraphiteTestContext () 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

Definition at line 68 of file drawatlascolor.cpp.

Constructor & Destructor Documentation

◆ DrawAtlasColorsGM()

DrawAtlasColorsGM::DrawAtlasColorsGM ( )
inline

Definition at line 70 of file drawatlascolor.cpp.

70 {
71 this->setBGColor(0xFFCCCCCC);
72 }
void setBGColor(SkColor)
Definition: gm.cpp:159

Member Function Documentation

◆ getISize()

SkISize DrawAtlasColorsGM::getISize ( )
inlineoverrideprotectedvirtual

Implements skiagm::GM.

Definition at line 77 of file drawatlascolor.cpp.

77 {
78 return SkISize::Make(kNumXferModes * (kAtlasSize + kPad) + kPad,
79 2 * kNumColors * (kAtlasSize + kPad) + kTextPad + kPad);
80 }
static constexpr SkISize Make(int32_t w, int32_t h)
Definition: SkSize.h:20

◆ getName()

SkString DrawAtlasColorsGM::getName ( ) const
inlineoverrideprotectedvirtual

Implements skiagm::GM.

Definition at line 75 of file drawatlascolor.cpp.

75{ return SkString("draw-atlas-colors"); }

◆ onDraw()

void DrawAtlasColorsGM::onDraw ( SkCanvas canvas)
inlineoverrideprotectedvirtual

Reimplemented from skiagm::GM.

Definition at line 82 of file drawatlascolor.cpp.

82 {
83 const SkRect target = SkRect::MakeWH(SkIntToScalar(kAtlasSize), SkIntToScalar(kAtlasSize));
84
85 auto atlas = make_atlas(canvas, kAtlasSize);
86
87 const SkBlendMode gModes[] = {
117 };
118
119 SkColor gColors[] = {
122 0x88888888, // transparent grey
123 0x88000088 // transparent blue
124 };
125
126 const int numModes = std::size(gModes);
127 SkASSERT(numModes == kNumXferModes);
128 const int numColors = std::size(gColors);
129 SkASSERT(numColors == kNumColors);
130 SkRSXform xforms[numColors];
131 SkRect rects[numColors];
132 SkColor quadColors[numColors];
133
135 paint.setAntiAlias(true);
136
137 for (int i = 0; i < numColors; ++i) {
138 xforms[i].set(1.0f, 0.0f, SkIntToScalar(kPad), i*(target.width()+kPad));
139 rects[i] = target;
140 quadColors[i] = gColors[i];
141 }
142
144
145 for (int i = 0; i < numModes; ++i) {
146 const char* label = SkBlendMode_Name(gModes[i]);
147 canvas->drawString(label, i*(target.width()+kPad)+kPad, SkIntToScalar(kTextPad),
148 font, paint);
149 }
150
151 for (int i = 0; i < numModes; ++i) {
152 canvas->save();
153 canvas->translate(SkIntToScalar(i*(target.height()+kPad)),
154 SkIntToScalar(kTextPad+kPad));
155 // w/o a paint
156 canvas->drawAtlas(atlas.get(), xforms, rects, quadColors, numColors,
157 gModes[i], SkSamplingOptions(), nullptr, nullptr);
158 canvas->translate(0.0f, numColors*(target.height()+kPad));
159 // w a paint
160 canvas->drawAtlas(atlas.get(), xforms, rects, quadColors, numColors,
161 gModes[i], SkSamplingOptions(), nullptr, &paint);
162 canvas->restore();
163 }
164 }
static const SkColor gColors[]
#define SkASSERT(cond)
Definition: SkAssert.h:116
SK_API const char * SkBlendMode_Name(SkBlendMode blendMode)
SkBlendMode
Definition: SkBlendMode.h:38
@ kSrcOut
r = s * (1-da)
@ kExclusion
rc = s + d - two(s*d), ra = kSrcOver
@ kSaturation
saturation of source with hue and luminosity of destination
@ kColorBurn
darken destination to reflect source
@ kPlus
r = min(s + d, 1)
@ kLighten
rc = s + d - min(s*da, d*sa), ra = kSrcOver
@ kHue
hue of source with saturation and luminosity of destination
@ kDstIn
r = d * sa
@ kModulate
r = s*d
@ kMultiply
r = s*(1-da) + d*(1-sa) + s*d
@ kColorDodge
brighten destination to reflect source
@ kScreen
r = s + d - s*d
@ kSrcOver
r = s + (1-sa)*d
@ kXor
r = s*(1-da) + d*(1-sa)
@ kLuminosity
luminosity of source with hue and saturation of destination
@ kSoftLight
lighten or darken, depending on source
@ kDifference
rc = s + d - 2*(min(s*da, d*sa)), ra = kSrcOver
@ kOverlay
multiply or screen, depending on destination
@ kSrcATop
r = s*da + d*(1-sa)
@ kDstATop
r = d*sa + s*(1-da)
@ kDstOver
r = d + (1-da)*s
@ kColor
hue and saturation of source with luminosity of destination
@ kHardLight
multiply or screen, depending on source
@ kDstOut
r = d * (1-sa)
@ kDarken
rc = s + d - max(s*da, d*sa), ra = kSrcOver
@ kSrcIn
r = s * da
@ kClear
r = 0
uint32_t SkColor
Definition: SkColor.h:37
constexpr SkColor SK_ColorRED
Definition: SkColor.h:126
constexpr SkColor SK_ColorWHITE
Definition: SkColor.h:122
#define SkIntToScalar(x)
Definition: SkScalar.h:57
constexpr SkBlendMode gModes[]
Definition: aarectmodes.cpp:73
void restore()
Definition: SkCanvas.cpp:461
void translate(SkScalar dx, SkScalar dy)
Definition: SkCanvas.cpp:1278
int save()
Definition: SkCanvas.cpp:447
void drawAtlas(const SkImage *atlas, const SkRSXform xform[], const SkRect tex[], const SkColor colors[], int count, SkBlendMode mode, const SkSamplingOptions &sampling, const SkRect *cullRect, const SkPaint *paint)
Definition: SkCanvas.cpp:1810
void drawString(const char str[], SkScalar x, SkScalar y, const SkFont &font, const SkPaint &paint)
Definition: SkCanvas.h:1803
Definition: SkFont.h:35
T * get() const
Definition: SkRefCnt.h:303
const Paint & paint
Definition: color_source.cc:38
static sk_sp< SkImage > make_atlas(SkCanvas *caller, int atlasSize)
uint32_t * target
sk_sp< const SkImage > atlas
Definition: SkRecords.h:331
PODArray< SkRSXform > xforms
Definition: SkRecords.h:332
sk_sp< SkTypeface > DefaultPortableTypeface()
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
font
Font Metadata and Metrics.
static constexpr SkRect MakeWH(float w, float h)
Definition: SkRect.h:609

The documentation for this class was generated from the following file: