| /* |
| * Copyright 2012 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| #ifndef SkOpEdgeBuilder_DEFINED |
| #define SkOpEdgeBuilder_DEFINED |
| |
| #include "include/core/SkPoint.h" |
| #include "include/core/SkScalar.h" |
| #include "include/private/base/SkTDArray.h" |
| #include "src/pathops/SkOpContour.h" |
| #include "src/pathops/SkPathOpsTypes.h" |
| #include "src/pathops/SkPathWriter.h" |
| |
| #include <cstdint> |
| |
| class SkPath; |
| |
| class SkOpEdgeBuilder { |
| public: |
| SkOpEdgeBuilder(const SkPathWriter& path, SkOpContourHead* contours2, |
| SkOpGlobalState* globalState) |
| : fGlobalState(globalState) |
| , fPath(path.nativePath()) |
| , fContourBuilder(contours2) |
| , fContoursHead(contours2) |
| , fAllowOpenContours(true) { |
| init(); |
| } |
| |
| SkOpEdgeBuilder(const SkPath& path, SkOpContourHead* contours2, SkOpGlobalState* globalState) |
| : fGlobalState(globalState) |
| , fPath(&path) |
| , fContourBuilder(contours2) |
| , fContoursHead(contours2) |
| , fAllowOpenContours(false) { |
| init(); |
| } |
| |
| void addOperand(const SkPath& path); |
| |
| void complete() { |
| fContourBuilder.flush(); |
| SkOpContour* contour = fContourBuilder.contour(); |
| if (contour && contour->count()) { |
| contour->complete(); |
| fContourBuilder.setContour(nullptr); |
| } |
| } |
| |
| bool finish(); |
| |
| const SkOpContour* head() const { |
| return fContoursHead; |
| } |
| |
| void init(); |
| bool unparseable() const { return fUnparseable; } |
| SkPathOpsMask xorMask() const { return fXorMask[fOperand]; } |
| |
| private: |
| void closeContour(const SkPoint& curveEnd, const SkPoint& curveStart); |
| bool close(); |
| int preFetch(); |
| bool walk(); |
| |
| SkOpGlobalState* fGlobalState; |
| const SkPath* fPath; |
| SkTDArray<SkPoint> fPathPts; |
| SkTDArray<SkScalar> fWeights; |
| SkTDArray<uint8_t> fPathVerbs; |
| SkOpContourBuilder fContourBuilder; |
| SkOpContourHead* fContoursHead; |
| SkPathOpsMask fXorMask[2]; |
| int fSecondHalf; |
| bool fOperand; |
| bool fAllowOpenContours; |
| bool fUnparseable; |
| }; |
| |
| #endif |