SkAAClipBlitterWrapper Class Reference

#include <SkRasterClip.h>

Public Member Functions
	SkAAClipBlitterWrapper ()
	SkAAClipBlitterWrapper (const SkRasterClip &, SkBlitter *)
	SkAAClipBlitterWrapper (const SkAAClip *, SkBlitter *)
void	init (const SkRasterClip &, SkBlitter *)
const SkIRect &	getBounds () const
const SkRegion &	getRgn () const
SkBlitter *	getBlitter ()

Detailed Description

Encapsulates the logic of deciding if we need to change/wrap the blitter for aaclipping. If so, getRgn and getBlitter return modified values. If not, they return the raw blitter and (bw) clip region.

We need to keep the constructor/destructor cost as small as possible, so we can freely put this on the stack, and not pay too much for the case when we're really BW anyways.

Definition at line 163 of file SkRasterClip.h.

Constructor & Destructor Documentation

SkAAClipBlitterWrapper() [1/3]

SkAAClipBlitterWrapper::SkAAClipBlitterWrapper

(

)

Definition at line 302 of file SkRasterClip.cpp.

                                               {
    SkDEBUGCODE(fClipRgn = nullptr;)
    SkDEBUGCODE(fBlitter = nullptr;)
}

SkAAClipBlitterWrapper() [2/3]

SkAAClipBlitterWrapper::SkAAClipBlitterWrapper	(	const SkRasterClip &	clip,
		SkBlitter *	blitter
	)

Definition at line 307 of file SkRasterClip.cpp.

                                                                   {
    this->init(clip, blitter);
}

SkAAClipBlitterWrapper() [3/3]

SkAAClipBlitterWrapper::SkAAClipBlitterWrapper	(	const SkAAClip *	aaclip,
		SkBlitter *	blitter
	)

Definition at line 312 of file SkRasterClip.cpp.

                                                                   {
    SkASSERT(blitter);
    SkASSERT(aaclip);
    fBWRgn.setRect(aaclip->getBounds());
    fAABlitter.init(blitter, aaclip);
    // now our return values
    fClipRgn = &fBWRgn;
    fBlitter = &fAABlitter;
}

Member Function Documentation

getBlitter()

SkBlitter * SkAAClipBlitterWrapper::getBlitter ( )

inline

Definition at line 179 of file SkRasterClip.h.

                            {
        SkASSERT(fBlitter);
        return fBlitter;
    }

getBounds()

const SkIRect & SkAAClipBlitterWrapper::getBounds ( ) const

inline

Definition at line 171 of file SkRasterClip.h.

                                     {
        SkASSERT(fClipRgn);
        return fClipRgn->getBounds();
    }

getRgn()

const SkRegion & SkAAClipBlitterWrapper::getRgn ( ) const

inline

Definition at line 175 of file SkRasterClip.h.

                                   {
        SkASSERT(fClipRgn);
        return *fClipRgn;
    }

init()

void SkAAClipBlitterWrapper::init	(	const SkRasterClip &	clip,
		SkBlitter *	blitter
	)

Definition at line 323 of file SkRasterClip.cpp.

                                                                              {
    SkASSERT(blitter);
    if (clip.isBW()) {
        fClipRgn = &clip.bwRgn();
        fBlitter = blitter;
    } else {
        const SkAAClip& aaclip = clip.aaRgn();
        fBWRgn.setRect(aaclip.getBounds());
        fAABlitter.init(blitter, &aaclip);
        // now our return values
        fClipRgn = &fBWRgn;
        fBlitter = &fAABlitter;
    }
}

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

• third_party/skia/src/core/SkRasterClip.h
• third_party/skia/src/core/SkRasterClip.cpp