07e97fccd2
BUG= Review URL: https://codereview.chromium.org/18058007 git-svn-id: http://skia.googlecode.com/svn/trunk@9908 2bbb7eff-a529-9590-31e7-b0007b416f81
64 lines
1.5 KiB
C++
64 lines
1.5 KiB
C++
/*
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* Copyright 2012 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#ifndef SkOpEdgeBuilder_DEFINED
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#define SkOpEdgeBuilder_DEFINED
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#include "SkOpContour.h"
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#include "SkPathWriter.h"
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#include "SkTArray.h"
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class SkOpEdgeBuilder {
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public:
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SkOpEdgeBuilder(const SkPathWriter& path, SkTArray<SkOpContour>& contours)
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: fPath(path.nativePath())
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, fContours(contours)
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, fAllowOpenContours(true) {
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init();
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}
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SkOpEdgeBuilder(const SkPath& path, SkTArray<SkOpContour>& contours)
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: fPath(&path)
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, fContours(contours)
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, fAllowOpenContours(false) {
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init();
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}
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void complete() {
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if (fCurrentContour && fCurrentContour->segments().count()) {
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fCurrentContour->complete();
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fCurrentContour = NULL;
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}
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}
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SkPathOpsMask xorMask() const {
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return fXorMask[fOperand];
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}
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void addOperand(const SkPath& path);
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bool finish();
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void init();
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private:
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void closeContour(const SkPoint& curveEnd, const SkPoint& curveStart);
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bool close();
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int preFetch();
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bool walk();
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const SkPath* fPath;
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SkTArray<SkPoint, true> fPathPts;
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SkTArray<uint8_t, true> fPathVerbs;
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SkOpContour* fCurrentContour;
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SkTArray<SkOpContour>& fContours;
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SkPathOpsMask fXorMask[2];
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int fSecondHalf;
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bool fOperand;
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bool fAllowOpenContours;
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bool fUnparseable;
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};
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#endif
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