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- /*
- * Copyright 2014 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
- #ifndef SkDashPathPriv_DEFINED
- #define SkDashPathPriv_DEFINED
- #include "include/core/SkPathEffect.h"
- namespace SkDashPath {
- /**
- * Calculates the initialDashLength, initialDashIndex, and intervalLength based on the
- * inputed phase and intervals. If adjustedPhase is passed in, then the phase will be
- * adjusted to be between 0 and intervalLength. The result will be stored in adjustedPhase.
- * If adjustedPhase is nullptr then it is assumed phase is already between 0 and intervalLength
- *
- * Caller should have already used ValidDashPath to exclude invalid data.
- */
- void CalcDashParameters(SkScalar phase, const SkScalar intervals[], int32_t count,
- SkScalar* initialDashLength, int32_t* initialDashIndex,
- SkScalar* intervalLength, SkScalar* adjustedPhase = nullptr);
- bool FilterDashPath(SkPath* dst, const SkPath& src, SkStrokeRec*, const SkRect*,
- const SkPathEffect::DashInfo& info);
- const SkScalar kMaxDashCount = 1000000;
- /** See comments for InternalFilter */
- enum class StrokeRecApplication {
- kDisallow,
- kAllow,
- };
- /**
- * Caller should have already used ValidDashPath to exclude invalid data. Typically, this leaves
- * the strokeRec unmodified. However, for some simple shapes (e.g. a line) it may directly
- * evaluate the dash and stroke to produce a stroked output path with a fill strokeRec. Passing
- * true for disallowStrokeRecApplication turns this behavior off.
- */
- bool InternalFilter(SkPath* dst, const SkPath& src, SkStrokeRec* rec,
- const SkRect* cullRect, const SkScalar aIntervals[],
- int32_t count, SkScalar initialDashLength, int32_t initialDashIndex,
- SkScalar intervalLength,
- StrokeRecApplication = StrokeRecApplication::kAllow);
- bool ValidDashPath(SkScalar phase, const SkScalar intervals[], int32_t count);
- }
- #endif
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