Inheritance diagram for SkBitmapDevice:

Public Member Functions
	SkBitmapDevice (const SkBitmap &bitmap)
	Construct a new device with the specified bitmap as its backend. More...

	SkBitmapDevice (const SkBitmap &bitmap, const SkSurfaceProps &surfaceProps)
	Construct a new device with the specified bitmap as its backend. More...

Public Member Functions inherited from SkBaseDevice
	SkBaseDevice (const SkImageInfo &, const SkSurfaceProps &)
	Construct a new device.

SkMetaData &	getMetaData ()

const SkImageInfo &	imageInfo () const
	Return ImageInfo for this device. More...

const SkSurfaceProps &	surfaceProps () const
	Return SurfaceProps for this device.

void	getGlobalBounds (SkIRect *bounds) const
	Return the bounds of the device in the coordinate space of the root canvas. More...

SkIRect	getGlobalBounds () const

int	width () const

int	height () const

bool	isOpaque () const

bool	writePixels (const SkImageInfo &, const void *, size_t rowBytes, int x, int y)

bool	accessPixels (SkPixmap *pmap)
	Try to get write-access to the pixels behind the device. More...

bool	peekPixels (SkPixmap *)
	Try to get read-only-access to the pixels behind the device. More...

const SkIPoint &	getOrigin () const
	Return the device's origin: its offset in device coordinates from the default origin in its canvas' matrix/clip.

Public Member Functions inherited from SkRefCntBase
	SkRefCntBase ()
	Default construct, initializing the reference count to 1.

virtual	~SkRefCntBase ()
	Destruct, asserting that the reference count is 1.

int32_t	getRefCnt () const
	Return the reference count. More...

void	validate () const

bool	unique () const
	May return true if the caller is the only owner. More...

void	ref () const
	Increment the reference count. More...

void	unref () const
	Decrement the reference count. More...

Static Public Member Functions
static SkBitmapDevice *	Create (const SkImageInfo &info)
	Create a new device along with its requisite pixel memory using default SkSurfaceProps (i.e., kLegacyFontHost_InitType-style). More...

static SkBitmapDevice *	Create (const SkImageInfo &, const SkSurfaceProps &)

Protected Member Functions
bool	onShouldDisableLCD (const SkPaint &) const override

void	drawPaint (const SkDraw &, const SkPaint &paint) override
	These are called inside the per-device-layer loop for each draw call. More...

virtual void	drawPoints (const SkDraw &, SkCanvas::PointMode mode, size_t count, const SkPoint[], const SkPaint &paint) override

virtual void	drawRect (const SkDraw &, const SkRect &r, const SkPaint &paint) override

virtual void	drawOval (const SkDraw &, const SkRect &oval, const SkPaint &paint) override

virtual void	drawRRect (const SkDraw &, const SkRRect &rr, const SkPaint &paint) override

virtual void	drawPath (const SkDraw &, const SkPath &path, const SkPaint &paint, const SkMatrix *prePathMatrix=NULL, bool pathIsMutable=false) override
	If pathIsMutable, then the implementation is allowed to cast path to a non-const pointer and modify it in place (as an optimization). More...

virtual void	drawBitmap (const SkDraw &, const SkBitmap &bitmap, const SkMatrix &matrix, const SkPaint &paint) override

virtual void	drawSprite (const SkDraw &, const SkBitmap &bitmap, int x, int y, const SkPaint &paint) override

void	drawBitmapRect (const SkDraw &, const SkBitmap &, const SkRect *, const SkRect &, const SkPaint &, SkCanvas::SrcRectConstraint) override
	The default impl. More...

virtual void	drawText (const SkDraw &, const void *text, size_t len, SkScalar x, SkScalar y, const SkPaint &paint) override
	Does not handle text decoration. More...

virtual void	drawPosText (const SkDraw &, const void *text, size_t len, const SkScalar pos[], int scalarsPerPos, const SkPoint &offset, const SkPaint &paint) override

virtual void	drawVertices (const SkDraw &, SkCanvas::VertexMode, int vertexCount, const SkPoint verts[], const SkPoint texs[], const SkColor colors[], SkXfermode *xmode, const uint16_t indices[], int indexCount, const SkPaint &paint) override

virtual void	drawDevice (const SkDraw &, SkBaseDevice *, int x, int y, const SkPaint &) override
	The SkDevice passed will be an SkDevice which was returned by a call to onCreateDevice on this device with kNeverTile_TileExpectation.

void	drawSpecial (const SkDraw &, SkSpecialImage *, int x, int y, const SkPaint &) override

sk_sp< SkSpecialImage >	makeSpecial (const SkBitmap &) override

sk_sp< SkSpecialImage >	makeSpecial (const SkImage *) override

sk_sp< SkSpecialImage >	snapSpecial () override

const SkBitmap &	onAccessBitmap ()
	Update as needed the pixel value in the bitmap, so that the caller can access the pixels directly. More...

SkPixelRef *	getPixelRef () const

SkPixelRef *	setPixelRef (SkPixelRef *pr)

bool	onReadPixels (const SkImageInfo &, void *, size_t, int x, int y) override
	The caller is responsible for "pre-clipping" the dst. More...

bool	onWritePixels (const SkImageInfo &, const void *, size_t, int, int) override
	The caller is responsible for "pre-clipping" the src. More...

bool	onPeekPixels (SkPixmap *) override

bool	onAccessPixels (SkPixmap *) override

Protected Member Functions inherited from SkBaseDevice
uint32_t	filterTextFlags (const SkPaint &) const
	Returns the text-related flags, possibly modified based on the state of the device (e.g. More...

virtual void	setMatrixClip (const SkMatrix &, const SkRegion &, const SkClipStack &)
	DEPRECATED: This will be removed in a future change. More...

virtual void	drawArc (const SkDraw &, const SkRect &oval, SkScalar startAngle, SkScalar sweepAngle, bool useCenter, const SkPaint &paint)
	By the time this is called we know that abs(sweepAngle) is in the range [0, 360). More...

virtual void	drawDRRect (const SkDraw &, const SkRRect &outer, const SkRRect &inner, const SkPaint &)

virtual void	drawBitmapNine (const SkDraw &, const SkBitmap &, const SkIRect &center, const SkRect &dst, const SkPaint &)

virtual void	drawBitmapLattice (const SkDraw &, const SkBitmap &, const SkCanvas::Lattice &, const SkRect &dst, const SkPaint &)

virtual void	drawImage (const SkDraw &, const SkImage *, SkScalar x, SkScalar y, const SkPaint &)

virtual void	drawImageRect (const SkDraw &, const SkImage , const SkRect src, const SkRect &dst, const SkPaint &, SkCanvas::SrcRectConstraint)

virtual void	drawImageNine (const SkDraw &, const SkImage *, const SkIRect &center, const SkRect &dst, const SkPaint &)

virtual void	drawImageLattice (const SkDraw &, const SkImage *, const SkCanvas::Lattice &, const SkRect &dst, const SkPaint &)

virtual void	drawTextBlob (const SkDraw &, const SkTextBlob , SkScalar x, SkScalar y, const SkPaint &paint, SkDrawFilter drawFilter)

virtual void	drawPatch (const SkDraw &, const SkPoint cubics[12], const SkColor colors[4], const SkPoint texCoords[4], SkXfermode *xmode, const SkPaint &paint)

virtual void	drawAtlas (const SkDraw &, const SkImage *atlas, const SkRSXform[], const SkRect[], const SkColor[], int count, SkXfermode::Mode, const SkPaint &)

virtual void	drawAnnotation (const SkDraw &, const SkRect &, const char[], SkData *)

virtual void	drawTextOnPath (const SkDraw &, const void text, size_t len, const SkPath &, const SkMatrix , const SkPaint &)

virtual void	drawTextRSXform (const SkDraw &, const void *text, size_t len, const SkRSXform[], const SkPaint &)

bool	readPixels (const SkImageInfo &, void *dst, size_t rowBytes, int x, int y)

virtual GrContext *	context () const

Protected Member Functions inherited from SkRefCntBase
void	internal_dispose_restore_refcnt_to_1 () const
	Allow subclasses to call this if they've overridden internal_dispose so they can reset fRefCnt before the destructor is called or if they choose not to call the destructor (e.g. More...

Private Types
typedef SkBaseDevice	INHERITED

Private Member Functions
void	replaceBitmapBackendForRasterSurface (const SkBitmap &) override

SkBaseDevice *	onCreateDevice (const CreateInfo &, const SkPaint *) override
	Create a new device based on CreateInfo. More...

sk_sp< SkSurface >	makeSurface (const SkImageInfo &, const SkSurfaceProps &) override

SkImageFilterCache *	getImageFilterCache () override

void	setNewSize (const SkISize &)

Private Attributes
SkBitmap	fBitmap

Friends
class	SkCanvas

struct	DeviceCM

class	SkDraw

class	SkDrawIter

class	SkDeviceFilteredPaint

class	SkSurface_Raster

Additional Inherited Members
Protected Types inherited from SkBaseDevice
enum	TileUsage { kPossible_TileUsage, kNever_TileUsage }

Static Protected Member Functions inherited from SkBaseDevice
static void	LogDrawScaleFactor (const SkMatrix &, SkFilterQuality)

Constructor & Destructor Documentation

SkBitmapDevice::SkBitmapDevice ( const SkBitmap & bitmap )

Construct a new device with the specified bitmap as its backend.

It is valid for the bitmap to have no pixels associated with it. In that case, any drawing to this device will have no effect.

SkBitmapDevice::SkBitmapDevice	(	const SkBitmap &	bitmap,
		const SkSurfaceProps &	surfaceProps
	)

Construct a new device with the specified bitmap as its backend.

It is valid for the bitmap to have no pixels associated with it. In that case, any drawing to this device will have no effect.

Member Function Documentation

static SkBitmapDevice* SkBitmapDevice::Create ( const SkImageInfo & info )

static

Create a new device along with its requisite pixel memory using default SkSurfaceProps (i.e., kLegacyFontHost_InitType-style).

Note: this entry point is slated for removal - no one should call it.

void SkBitmapDevice::drawBitmapRect	(	const SkDraw &	,
		const SkBitmap &	,
		const SkRect *	,
		const SkRect &	,
		const SkPaint &	,
		SkCanvas::SrcRectConstraint
	)

overrideprotectedvirtual

The default impl.

will create a bitmap-shader from the bitmap, and call drawRect with it.

Implements SkBaseDevice.

void SkBitmapDevice::drawPaint	(	const SkDraw &	,
		const SkPaint &	paint
	)

overrideprotectedvirtual

These are called inside the per-device-layer loop for each draw call.

When these are called, we have already applied any saveLayer operations, and are handling any looping from the paint, and any effects from the DrawFilter.

Implements SkBaseDevice.

virtual void SkBitmapDevice::drawPath	(	const SkDraw &	,
		const SkPath &	path,
		const SkPaint &	paint,
		const SkMatrix *	prePathMatrix = `NULL`,
		bool	pathIsMutable = `false`
	)

overrideprotectedvirtual

If pathIsMutable, then the implementation is allowed to cast path to a non-const pointer and modify it in place (as an optimization).

Canvas may do this to implement helpers such as drawOval, by placing a temp path on the stack to hold the representation of the oval.

If prePathMatrix is not null, it should logically be applied before any stroking or other effects. If there are no effects on the paint that affect the geometry/rasterization, then the pre matrix can just be pre-concated with the current matrix.

Implements SkBaseDevice.

virtual void SkBitmapDevice::drawText	(	const SkDraw &	,
		const void *	text,
		size_t	len,
		SkScalar	x,
		SkScalar	y,
		const SkPaint &	paint
	)

overrideprotectedvirtual

Does not handle text decoration.

Decorations (underline and stike-thru) will be handled by SkCanvas.

Implements SkBaseDevice.

const SkBitmap& SkBitmapDevice::onAccessBitmap ( )

protected

Update as needed the pixel value in the bitmap, so that the caller can access the pixels directly.

Note: only the pixels field should be altered. The config/width/height/rowbytes must remain unchanged.

Returns: the device contents as a bitmap

SkBaseDevice* SkBitmapDevice::onCreateDevice	(	const CreateInfo &	,
		const SkPaint *
	)

overrideprivatevirtual

Create a new device based on CreateInfo.

If the paint is not null, then it represents a preview of how the new device will be composed with its creator device (this).

The subclass may be handed this device in drawDevice(), so it must always return a device that it knows how to draw, and that it knows how to identify if it is not of the same subclass (since drawDevice is passed a SkBaseDevice*). If the subclass cannot fulfill that contract (e.g. PDF cannot support some settings on the paint) it should return NULL, and the caller may then decide to explicitly create a bitmapdevice, knowing that later it could not call drawDevice with it (but it could call drawSprite or drawBitmap).

Reimplemented from SkBaseDevice.

bool SkBitmapDevice::onReadPixels	(	const SkImageInfo &	,
		void *	,
		size_t	,
		int	x,
		int	y
	)

overrideprotectedvirtual

The caller is responsible for "pre-clipping" the dst.

The impl can assume that the dst image at the specified x,y offset will fit within the device's bounds.

This is explicitly asserted in readPixels(), the public way to call this.

Reimplemented from SkBaseDevice.

bool SkBitmapDevice::onWritePixels	(	const SkImageInfo &	,
		const void *	,
		size_t	,
		int	x,
		int	y
	)

overrideprotectedvirtual

The caller is responsible for "pre-clipping" the src.

The impl can assume that the src image at the specified x,y offset will fit within the device's bounds.

This is explicitly asserted in writePixelsDirect(), the public way to call this.

Reimplemented from SkBaseDevice.

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

include/core/SkBitmapDevice.h

Public Member Functions

Static Public Member Functions

Protected Member Functions

Private Types

Private Member Functions

Private Attributes

Friends

Additional Inherited Members

Constructor & Destructor Documentation

Member Function Documentation