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

Public Member Functions

 ColorMatrixGM ()
 
- 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 onOnceBeforeDraw () 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 &)
 
GraphiteTestContext * graphiteTestContext () const
 

Static Protected Member Functions

static sk_sp< SkImage > CreateSolidBitmap (int width, int height)
 
static sk_sp< SkImage > CreateTransparentBitmap (int width, int height)
 

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 39 of file colormatrix.cpp.

Constructor & Destructor Documentation

◆ ColorMatrixGM()

ColorMatrixGM::ColorMatrixGM ( )
inline

Definition at line 41 of file colormatrix.cpp.

41 {
42 this->setBGColor(0xFF808080);
43 }
skiagm::GM::setBGColor
void setBGColor(SkColor)
Definition: gm.cpp:159

Member Function Documentation

◆ CreateSolidBitmap()

static sk_sp< SkImage > ColorMatrixGM::CreateSolidBitmap ( int  width,
int  height 
)
inlinestaticprotected

Definition at line 55 of file colormatrix.cpp.

55 {
56 SkBitmap bm;
57 bm.allocN32Pixels(width, height);
58 SkCanvas canvas(bm);
59 canvas.clear(0x0);
60 for (int y = 0; y < height; ++y) {
61 for (int x = 0; x < width; ++x) {
62 SkPaint paint;
63 paint.setColor(SkColorSetARGB(255, x * 255 / width, y * 255 / height, 0));
64 canvas.drawRect(SkRect::MakeXYWH(SkIntToScalar(x),
65 SkIntToScalar(y), SK_Scalar1, SK_Scalar1), paint);
66 }
67 }
68 return bm.asImage();
69 }
SkColorSetARGB
static constexpr SkColor SkColorSetARGB(U8CPU a, U8CPU r, U8CPU g, U8CPU b)
Definition: SkColor.h:49
SK_Scalar1
#define SK_Scalar1
Definition: SkScalar.h:18
SkIntToScalar
#define SkIntToScalar(x)
Definition: SkScalar.h:57
SkBitmap::asImage
sk_sp< SkImage > asImage() const
Definition: SkBitmap.cpp:645
SkBitmap::allocN32Pixels
void allocN32Pixels(int width, int height, bool isOpaque=false)
Definition: SkBitmap.cpp:232
skiagm::GM::width
SkScalar width()
Definition: gm.h:159
skiagm::GM::height
SkScalar height()
Definition: gm.h:162
paint
const Paint & paint
Definition: color_source.cc:38
y
double y
Definition: mouse-input-test.cc:83
x
double x
Definition: mouse-input-test.cc:82
SkRect::MakeXYWH
static constexpr SkRect MakeXYWH(float x, float y, float w, float h)
Definition: SkRect.h:659

◆ CreateTransparentBitmap()

static sk_sp< SkImage > ColorMatrixGM::CreateTransparentBitmap ( int  width,
int  height 
)
inlinestaticprotected

Definition at line 72 of file colormatrix.cpp.

72 {
73 SkBitmap bm;
74 bm.allocN32Pixels(width, height);
75 SkCanvas canvas(bm);
76 canvas.clear(0x0);
77
78 SkPoint pts[] = {{0, 0}, {SkIntToScalar(width), SkIntToScalar(height)}};
79 SkColor colors[] = {0x00000000, 0xFFFFFFFF};
80 SkPaint paint;
81 paint.setShader(SkGradientShader::MakeLinear(pts, colors, nullptr, 2,
82 SkTileMode::kClamp));
83 canvas.drawRect(SkRect::MakeWH(SkIntToScalar(width), SkIntToScalar(height)), paint);
84 return bm.asImage();
85 }
SkColor
uint32_t SkColor
Definition: SkColor.h:37
SkGradientShader::MakeLinear
static sk_sp< SkShader > MakeLinear(const SkPoint pts[2], const SkColor colors[], const SkScalar pos[], int count, SkTileMode mode, uint32_t flags=0, const SkMatrix *localMatrix=nullptr)
Definition: SkLinearGradient.cpp:132
SkRecords::colors
PODArray< SkColor > colors
Definition: SkRecords.h:276
SkRect::MakeWH
static constexpr SkRect MakeWH(float w, float h)
Definition: SkRect.h:609

◆ getISize()

SkISize ColorMatrixGM::getISize ( )
inlineoverrideprotectedvirtual

Implements skiagm::GM.

Definition at line 48 of file colormatrix.cpp.

48{ return SkISize::Make(WIDTH, HEIGHT); }
WIDTH
#define WIDTH
Definition: colormatrix.cpp:28
HEIGHT
#define HEIGHT
Definition: colormatrix.cpp:29
SkISize::Make
static constexpr SkISize Make(int32_t w, int32_t h)
Definition: SkSize.h:20

◆ getName()

SkString ColorMatrixGM::getName ( ) const
inlineoverrideprotectedvirtual

Implements skiagm::GM.

Definition at line 46 of file colormatrix.cpp.

46{ return SkString("colormatrix"); }

◆ onDraw()

void ColorMatrixGM::onDraw ( SkCanvas *  canvas)
inlineoverrideprotectedvirtual

Reimplemented from skiagm::GM.

Definition at line 87 of file colormatrix.cpp.

87 {
88 SkPaint paint;
89 SkColorMatrix matrix;
90
91 paint.setBlendMode(SkBlendMode::kSrc);
92 const SkImage* bmps[] = { fSolidImg.get(), fTransparentImg.get() };
93
94 for (size_t i = 0; i < std::size(bmps); ++i) {
95 matrix.setIdentity();
96 set_color_matrix(&paint, matrix);
97 canvas->drawImage(bmps[i], 0, 0, SkSamplingOptions(), &paint);
98
99 ///////////////////////////////////////////////
100
101 matrix.setSaturation(0.0f);
102 set_color_matrix(&paint, matrix);
103 canvas->drawImage(bmps[i], 80, 0, SkSamplingOptions(), &paint);
104
105 matrix.setSaturation(0.5f);
106 set_color_matrix(&paint, matrix);
107 canvas->drawImage(bmps[i], 160, 0, SkSamplingOptions(), &paint);
108
109 matrix.setSaturation(1.0f);
110 set_color_matrix(&paint, matrix);
111 canvas->drawImage(bmps[i], 240, 0, SkSamplingOptions(), &paint);
112
113 matrix.setSaturation(2.0f);
114 set_color_matrix(&paint, matrix);
115 canvas->drawImage(bmps[i], 320, 0, SkSamplingOptions(), &paint);
116
117 ///////////////////////////////////////////////
118
119 // Move red into alpha, set color to white
120 float data[20] = {
121 0, 0, 0, 0, 1,
122 0, 0, 0, 0, 1,
123 0, 0, 0, 0, 1,
124 1, 0, 0, 0, 0,
125 };
126
127 set_array(&paint, data);
128 canvas->drawImage(bmps[i], 400, 0, SkSamplingOptions(), &paint);
129 ///////////////////////////////////////////////
130 canvas->translate(0, 80);
131 }
132 }
SkCanvas::translate
void translate(SkScalar dx, SkScalar dy)
Definition: SkCanvas.cpp:1278
SkCanvas::drawImage
void drawImage(const SkImage *image, SkScalar left, SkScalar top)
Definition: SkCanvas.h:1528
sk_sp::get
T * get() const
Definition: SkRefCnt.h:303
set_array
static void set_array(SkPaint *paint, const float array[])
Definition: colormatrix.cpp:35
set_color_matrix
static void set_color_matrix(SkPaint *paint, const SkColorMatrix &matrix)
Definition: colormatrix.cpp:31
i
int i
Definition: fl_socket_accessible.cc:18
SkRecords::matrix
unsigned useCenter Optional< SkMatrix > matrix
Definition: SkRecords.h:258
flutter::size
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Definition: switches.h:259
skiagm::SkSamplingOptions
SkSamplingOptions(SkFilterMode::kLinear))
data
std::shared_ptr< const fml::Mapping > data
Definition: texture_gles.cc:63

◆ onOnceBeforeDraw()

void ColorMatrixGM::onOnceBeforeDraw ( )
inlineoverrideprotectedvirtual

Reimplemented from skiagm::GM.

Definition at line 50 of file colormatrix.cpp.

50 {
51 fSolidImg = CreateSolidBitmap(64, 64);
52 fTransparentImg = CreateTransparentBitmap(64, 64);
53 }
ColorMatrixGM::CreateSolidBitmap
static sk_sp< SkImage > CreateSolidBitmap(int width, int height)
Definition: colormatrix.cpp:55
ColorMatrixGM::CreateTransparentBitmap
static sk_sp< SkImage > CreateTransparentBitmap(int width, int height)
Definition: colormatrix.cpp:72
The documentation for this class was generated from the following file:
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