SkScanClipper Class Reference

#include <SkScanPriv.h>

Public Member Functions
	SkScanClipper (SkBlitter *blitter, const SkRegion *clip, const SkIRect &bounds, bool skipRejectTest=false, bool boundsPreClipped=false)
SkBlitter *	getBlitter () const
const SkIRect *	getClipRect () const

Detailed Description

Definition at line 18 of file SkScanPriv.h.

Constructor & Destructor Documentation

SkScanClipper()

SkScanClipper::SkScanClipper	(	SkBlitter *	blitter,
		const SkRegion *	clip,
		const SkIRect &	ir,
		bool	skipRejectTest = false,
		bool	irPreClipped = false
	)

If the caller is drawing an inverse-fill path, then it pass true for skipRejectTest, so we don't abort drawing just because the src bounds (ir) is outside of the clip.

Definition at line 520 of file SkScan_Path.cpp.

                                                                                        {
    fBlitter = nullptr;     // null means blit nothing
    fClipRect = nullptr;
 
    if (clip) {
        fClipRect = &clip->getBounds();
        if (!skipRejectTest && !SkIRect::Intersects(*fClipRect, ir)) { // completely clipped out
            return;
        }
 
        if (clip->isRect()) {
            if (!irPreClipped && fClipRect->contains(ir)) {
#ifdef SK_DEBUG
                fRectClipCheckBlitter.init(blitter, *fClipRect);
                blitter = &fRectClipCheckBlitter;
#endif
                fClipRect = nullptr;
            } else {
                // only need a wrapper blitter if we're horizontally clipped
                if (irPreClipped ||
                    fClipRect->fLeft > ir.fLeft || fClipRect->fRight < ir.fRight) {
                    fRectBlitter.init(blitter, *fClipRect);
                    blitter = &fRectBlitter;
                } else {
#ifdef SK_DEBUG
                    fRectClipCheckBlitter.init(blitter, *fClipRect);
                    blitter = &fRectClipCheckBlitter;
#endif
                }
            }
        } else {
            fRgnBlitter.init(blitter, clip);
            blitter = &fRgnBlitter;
        }
    }
    fBlitter = blitter;
}

Member Function Documentation

getBlitter()

SkBlitter * SkScanClipper::getBlitter ( ) const

inline

Definition at line 23 of file SkScanPriv.h.

{ return fBlitter; }

getClipRect()

const SkIRect * SkScanClipper::getClipRect ( ) const

inline

Definition at line 24 of file SkScanPriv.h.

{ return fClipRect; }

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

• third_party/skia/src/core/SkScanPriv.h
• third_party/skia/src/core/SkScan_Path.cpp