Inheritance diagram for TestBlitter:

Public Member Functions
	TestBlitter (SkIRect bounds, skiatest::Reporter *reporter)

void	blitH (int x, int y, int width) override
	Blit a horizontal run of one or more pixels. More...

void	blitAntiH (int x, int y, const SkAlpha antialias[], const int16_t runs[]) override

Public Member Functions inherited from SkBlitter
virtual	~SkBlitter ()

virtual void	blitH (int x, int y, int width)=0
	Blit a horizontal run of one or more pixels. More...

virtual void	blitAntiH (int x, int y, const SkAlpha antialias[], const int16_t runs[])=0

virtual void	blitV (int x, int y, int height, SkAlpha alpha)
	Blit a vertical run of pixels with a constant alpha value. More...

virtual void	blitRect (int x, int y, int width, int height)
	Blit a solid rectangle one or more pixels wide. More...

virtual void	blitAntiRect (int x, int y, int width, int height, SkAlpha leftAlpha, SkAlpha rightAlpha)

void	blitFatAntiRect (const SkRect &rect)

virtual void	blitMask (const SkMask &, const SkIRect &clip)

virtual void	blitAntiH2 (int x, int y, U8CPU a0, U8CPU a1)

virtual void	blitAntiV2 (int x, int y, U8CPU a0, U8CPU a1)

virtual bool	isNullBlitter () const

virtual int	requestRowsPreserved () const

virtual void *	allocBlitMemory (size_t sz)

void	blitRectRegion (const SkIRect &rect, const SkRegion &clip)

void	blitRegion (const SkRegion &clip)

Additional Inherited Members
Static Public Member Functions inherited from SkBlitter
static bool	UseLegacyBlitter (const SkPixmap &, const SkPaint &, const SkMatrix &)

static SkBlitter *	Choose (const SkPixmap &dst, const SkMatrix &ctm, const SkPaint &paint, SkArenaAlloc *, bool drawCoverage, sk_sp< SkShader > clipShader, const SkSurfaceProps &props)

static SkBlitter *	ChooseSprite (const SkPixmap &dst, const SkPaint &, const SkPixmap &src, int left, int top, SkArenaAlloc *, sk_sp< SkShader > clipShader)

Protected Attributes inherited from SkBlitter
SkAutoMalloc	fBlitMemory

Detailed Description

Definition at line 18 of file BlitMaskClip.cpp.

Constructor & Destructor Documentation

◆ TestBlitter()

TestBlitter::TestBlitter	(	SkIRect	bounds,
		skiatest::Reporter *	reporter
	)

inline

Definition at line 20 of file BlitMaskClip.cpp.

21 : fBounds(bounds)

22 , fReporter(reporter) { }

reporter

Definition: FontMgrTest.cpp:39

SkRecords::bounds

Optional< SkRect > bounds

Definition: SkRecords.h:189

Member Function Documentation

◆ blitAntiH()

void TestBlitter::blitAntiH	(	int	x,
		int	y,
		const SkAlpha	antialias[],
		const int16_t	runs[]
	)

inlineoverridevirtual

Blit a horizontal run of antialiased pixels; runs[] is a sparse zero-terminated run-length encoding of spans of constant alpha values. The runs[] and antialias[] work together to represent long runs of pixels with the same alphas. The runs[] contains the number of pixels with the same alpha, and antialias[] contain the coverage value for that number of pixels. The runs[] (and antialias[]) are encoded in a clever way. The runs array is zero terminated, and has enough entries for each pixel plus one, in most cases some of the entries will not contain valid data. An entry in the runs array contains the number of pixels (np) that have the same alpha value. The next np value is found np entries away. For example, if runs[0] = 7, then the next valid entry will by at runs[7]. The runs array and antialias[] are coupled by index. So, if the np entry is at runs[45] = 12 then the alpha value can be found at antialias[45] = 0x88. This would mean to use an alpha value of 0x88 for the next 12 pixels starting at pixel 45.

Implements SkBlitter.

Definition at line 32 of file BlitMaskClip.cpp.

                                                                                           {
        SkDEBUGFAIL("blitAntiH not implemented");
    }

◆ blitH()

void TestBlitter::blitH	(	int	x,
		int	y,
		int	width
	)

inlineoverridevirtual

Blit a horizontal run of one or more pixels.

Implements SkBlitter.

Definition at line 24 of file BlitMaskClip.cpp.

                                                 {
 
        REPORTER_ASSERT(fReporter, x >= fBounds.fLeft && x < fBounds.fRight);
        REPORTER_ASSERT(fReporter, y >= fBounds.fTop && y < fBounds.fBottom);
        int right = x + width;
        REPORTER_ASSERT(fReporter, right > fBounds.fLeft && right <= fBounds.fRight);
    }

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

third_party/skia/tests/BlitMaskClip.cpp