TableColorFilterGM Class Reference

Inheritance diagram for TableColorFilterGM:

Public Member Functions
	TableColorFilterGM ()
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 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 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

Definition at line 116 of file tablecolorfilter.cpp.

Constructor & Destructor Documentation

TableColorFilterGM()

TableColorFilterGM::TableColorFilterGM ( )

inline

Definition at line 118 of file tablecolorfilter.cpp.

{}

Member Function Documentation

getISize()

SkISize TableColorFilterGM::getISize ( )

inlineoverrideprotectedvirtual

Implements skiagm::GM.

Definition at line 123 of file tablecolorfilter.cpp.

{ return {700, 1650}; }

getName()

SkString TableColorFilterGM::getName ( ) const

inlineoverrideprotectedvirtual

Implements skiagm::GM.

Definition at line 121 of file tablecolorfilter.cpp.

{ return SkString("tablecolorfilter"); }

onDraw()

void TableColorFilterGM::onDraw ( SkCanvas *  canvas )

inlineoverrideprotectedvirtual

Reimplemented from skiagm::GM.

Definition at line 125 of file tablecolorfilter.cpp.

                                           {
        canvas->drawColor(0xFFDDDDDD);
        canvas->translate(20, 20);
 
        static sk_sp<SkColorFilter> (*gColorFilterMakers[])() = {
            make_null_cf, make_cf0, make_cf1, make_cf2, make_cf3
        };
        static void (*gBitmapMakers[])(SkBitmap*) = { make_bm0, make_bm1 };
 
        // This test will be done once for each bitmap with the results stacked vertically.
        // For a single bitmap the resulting image will be the following:
        //  - A first line with the original bitmap, followed by the image drawn once
        //  with each of the N color filters
        //  - N lines of the bitmap drawn N times, this will cover all N*N combinations of
        //  pair of color filters in order to test the collapsing of consecutive table
        //  color filters.
        //
        //  Here is a graphical representation of the result for 2 bitmaps and 2 filters
        //  with the number corresponding to the number of filters the bitmap goes through:
        //
        //  --bitmap1
        //  011
        //  22
        //  22
        //  --bitmap2
        //  011
        //  22
        //  22
 
        SkScalar x = 0, y = 0;
        for (size_t bitmapMaker = 0; bitmapMaker < std::size(gBitmapMakers); ++bitmapMaker) {
            SkBitmap bm;
            gBitmapMakers[bitmapMaker](&bm);
 
            SkScalar xOffset = SkScalar(bm.width() * 9 / 8);
            SkScalar yOffset = SkScalar(bm.height() * 9 / 8);
 
            // Draw the first element of the first line
            x = 0;
            SkPaint paint;
            SkSamplingOptions sampling;
 
            canvas->drawImage(bm.asImage(), x, y);
 
            // Draws the rest of the first line for this bitmap
            // each draw being at xOffset of the previous one
            for (unsigned i = 1; i < std::size(gColorFilterMakers); ++i) {
                x += xOffset;
                paint.setColorFilter(gColorFilterMakers[i]());
                canvas->drawImage(bm.asImage(), x, y, sampling, &paint);
            }
 
            paint.setColorFilter(nullptr);
 
            for (unsigned i = 0; i < std::size(gColorFilterMakers); ++i) {
                sk_sp<SkColorFilter> colorFilter1(gColorFilterMakers[i]());
                sk_sp<SkImageFilter> imageFilter1(SkImageFilters::ColorFilter(
                        std::move(colorFilter1), nullptr));
 
                // Move down to the next line and draw it
                // each draw being at xOffset of the previous one
                y += yOffset;
                x = 0;
                for (unsigned j = 1; j < std::size(gColorFilterMakers); ++j) {
                    sk_sp<SkColorFilter> colorFilter2(gColorFilterMakers[j]());
                    sk_sp<SkImageFilter> imageFilter2(SkImageFilters::ColorFilter(
                            std::move(colorFilter2), imageFilter1, nullptr));
                    paint.setImageFilter(std::move(imageFilter2));
                    canvas->drawImage(bm.asImage(), x, y, sampling, &paint);
                    x += xOffset;
                }
            }
 
            // Move down one line to the beginning of the block for next bitmap
            y += yOffset;
        }
    }

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

• third_party/skia/gm/tablecolorfilter.cpp