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skia2/src/pathops/SkOpCoincidence.h
Ben Wagner 729a23f50f Move ccpr headers for display list out of include/private. 
This partially undoes 774168efac "Allow
CCPR in DDL mode (take 2)". The issue appears to have been the use of a
not fully defined type (destructor could not be instantiated) because
the private fields were also dllexported, requiring the destructors to
exist in all translation units which included the header. Only the parts
of the class which are actually public are now marked as exported.

Change-Id: I8a79bd5d8962e94c24f7563d496744bb278153fa
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/214020
Commit-Queue: Ben Wagner <bungeman@google.com>
Reviewed-by: Mike Klein <mtklein@google.com>
2019-05-20 14:50:56 +00:00

304 lines
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/*
* Copyright 2013 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SkOpCoincidence_DEFINED
#define SkOpCoincidence_DEFINED
#include "include/private/SkTDArray.h"
#include "src/core/SkArenaAlloc.h"
#include "src/pathops/SkOpSpan.h"
#include "src/pathops/SkPathOpsTypes.h"
class SkOpPtT;
class SkOpSpanBase;
class SkCoincidentSpans {
public:
const SkOpPtT* coinPtTEnd() const;
const SkOpPtT* coinPtTStart() const;
// These return non-const pointers so that, as copies, they can be added
// to a new span pair
SkOpPtT* coinPtTEndWritable() const { return const_cast<SkOpPtT*>(fCoinPtTEnd); }
SkOpPtT* coinPtTStartWritable() const { return const_cast<SkOpPtT*>(fCoinPtTStart); }
bool collapsed(const SkOpPtT* ) const;
bool contains(const SkOpPtT* s, const SkOpPtT* e) const;
void correctEnds();
void correctOneEnd(const SkOpPtT* (SkCoincidentSpans::* getEnd)() const,
void (SkCoincidentSpans::* setEnd)(const SkOpPtT* ptT) );
#if DEBUG_COIN
void debugCorrectEnds(SkPathOpsDebug::GlitchLog* log) const;
void debugCorrectOneEnd(SkPathOpsDebug::GlitchLog* log,
const SkOpPtT* (SkCoincidentSpans::* getEnd)() const,
void (SkCoincidentSpans::* setEnd)(const SkOpPtT* ptT) const) const;
bool debugExpand(SkPathOpsDebug::GlitchLog* log) const;
#endif
const char* debugID() const {
#if DEBUG_COIN
return fGlobalState->debugCoinDictEntry().fFunctionName;
#else
return nullptr;
#endif
}
void debugShow() const;
#ifdef SK_DEBUG
void debugStartCheck(const SkOpSpanBase* outer, const SkOpSpanBase* over,
const SkOpGlobalState* debugState) const;
#endif
void dump() const;
bool expand();
bool extend(const SkOpPtT* coinPtTStart, const SkOpPtT* coinPtTEnd,
const SkOpPtT* oppPtTStart, const SkOpPtT* oppPtTEnd);
bool flipped() const { return fOppPtTStart->fT > fOppPtTEnd->fT; }
SkDEBUGCODE(SkOpGlobalState* globalState() { return fGlobalState; })
void init(SkDEBUGCODE(SkOpGlobalState* globalState)) {
sk_bzero(this, sizeof(*this));
SkDEBUGCODE(fGlobalState = globalState);
}
SkCoincidentSpans* next() { return fNext; }
const SkCoincidentSpans* next() const { return fNext; }
SkCoincidentSpans** nextPtr() { return &fNext; }
const SkOpPtT* oppPtTStart() const;
const SkOpPtT* oppPtTEnd() const;
// These return non-const pointers so that, as copies, they can be added
// to a new span pair
SkOpPtT* oppPtTStartWritable() const { return const_cast<SkOpPtT*>(fOppPtTStart); }
SkOpPtT* oppPtTEndWritable() const { return const_cast<SkOpPtT*>(fOppPtTEnd); }
bool ordered(bool* result) const;
void set(SkCoincidentSpans* next, const SkOpPtT* coinPtTStart, const SkOpPtT* coinPtTEnd,
const SkOpPtT* oppPtTStart, const SkOpPtT* oppPtTEnd);
void setCoinPtTEnd(const SkOpPtT* ptT) {
SkOPASSERT(ptT == ptT->span()->ptT());
SkOPASSERT(!fCoinPtTStart || ptT->fT != fCoinPtTStart->fT);
SkASSERT(!fCoinPtTStart || fCoinPtTStart->segment() == ptT->segment());
fCoinPtTEnd = ptT;
ptT->setCoincident();
}
void setCoinPtTStart(const SkOpPtT* ptT) {
SkOPASSERT(ptT == ptT->span()->ptT());
SkOPASSERT(!fCoinPtTEnd || ptT->fT != fCoinPtTEnd->fT);
SkASSERT(!fCoinPtTEnd || fCoinPtTEnd->segment() == ptT->segment());
fCoinPtTStart = ptT;
ptT->setCoincident();
}
void setEnds(const SkOpPtT* coinPtTEnd, const SkOpPtT* oppPtTEnd) {
this->setCoinPtTEnd(coinPtTEnd);
this->setOppPtTEnd(oppPtTEnd);
}
void setOppPtTEnd(const SkOpPtT* ptT) {
SkOPASSERT(ptT == ptT->span()->ptT());
SkOPASSERT(!fOppPtTStart || ptT->fT != fOppPtTStart->fT);
SkASSERT(!fOppPtTStart || fOppPtTStart->segment() == ptT->segment());
fOppPtTEnd = ptT;
ptT->setCoincident();
}
void setOppPtTStart(const SkOpPtT* ptT) {
SkOPASSERT(ptT == ptT->span()->ptT());
SkOPASSERT(!fOppPtTEnd || ptT->fT != fOppPtTEnd->fT);
SkASSERT(!fOppPtTEnd || fOppPtTEnd->segment() == ptT->segment());
fOppPtTStart = ptT;
ptT->setCoincident();
}
void setStarts(const SkOpPtT* coinPtTStart, const SkOpPtT* oppPtTStart) {
this->setCoinPtTStart(coinPtTStart);
this->setOppPtTStart(oppPtTStart);
}
void setNext(SkCoincidentSpans* next) { fNext = next; }
private:
SkCoincidentSpans* fNext;
const SkOpPtT* fCoinPtTStart;
const SkOpPtT* fCoinPtTEnd;
const SkOpPtT* fOppPtTStart;
const SkOpPtT* fOppPtTEnd;
SkDEBUGCODE(SkOpGlobalState* fGlobalState);
};
class SkOpCoincidence {
public:
SkOpCoincidence(SkOpGlobalState* globalState)
: fHead(nullptr)
, fTop(nullptr)
, fGlobalState(globalState)
, fContinue(false)
, fSpanDeleted(false)
, fPtAllocated(false)
, fCoinExtended(false)
, fSpanMerged(false) {
globalState->setCoincidence(this);
}
void add(SkOpPtT* coinPtTStart, SkOpPtT* coinPtTEnd, SkOpPtT* oppPtTStart,
SkOpPtT* oppPtTEnd);
bool addEndMovedSpans(DEBUG_COIN_DECLARE_ONLY_PARAMS());
bool addExpanded(DEBUG_COIN_DECLARE_ONLY_PARAMS());
bool addMissing(bool* added DEBUG_COIN_DECLARE_PARAMS());
bool apply(DEBUG_COIN_DECLARE_ONLY_PARAMS());
bool contains(const SkOpPtT* coinPtTStart, const SkOpPtT* coinPtTEnd,
const SkOpPtT* oppPtTStart, const SkOpPtT* oppPtTEnd) const;
void correctEnds(DEBUG_COIN_DECLARE_ONLY_PARAMS());
#if DEBUG_COIN
void debugAddEndMovedSpans(SkPathOpsDebug::GlitchLog* log) const;
void debugAddExpanded(SkPathOpsDebug::GlitchLog* ) const;
void debugAddMissing(SkPathOpsDebug::GlitchLog* , bool* added) const;
void debugAddOrOverlap(SkPathOpsDebug::GlitchLog* log,
const SkOpSegment* coinSeg, const SkOpSegment* oppSeg,
double coinTs, double coinTe, double oppTs, double oppTe,
bool* added) const;
#endif
const SkOpAngle* debugAngle(int id) const {
return SkDEBUGRELEASE(fGlobalState->debugAngle(id), nullptr);
}
void debugCheckBetween() const;
#if DEBUG_COIN
void debugCheckValid(SkPathOpsDebug::GlitchLog* log) const;
#endif
SkOpContour* debugContour(int id) const {
return SkDEBUGRELEASE(fGlobalState->debugContour(id), nullptr);
}
#if DEBUG_COIN
void debugCorrectEnds(SkPathOpsDebug::GlitchLog* log) const;
bool debugExpand(SkPathOpsDebug::GlitchLog* ) const;
void debugMark(SkPathOpsDebug::GlitchLog* ) const;
void debugMarkCollapsed(SkPathOpsDebug::GlitchLog* ,
const SkCoincidentSpans* coin, const SkOpPtT* test) const;
void debugMarkCollapsed(SkPathOpsDebug::GlitchLog* , const SkOpPtT* test) const;
#endif
const SkOpPtT* debugPtT(int id) const {
return SkDEBUGRELEASE(fGlobalState->debugPtT(id), nullptr);
}
const SkOpSegment* debugSegment(int id) const {
return SkDEBUGRELEASE(fGlobalState->debugSegment(id), nullptr);
}
#if DEBUG_COIN
void debugRelease(SkPathOpsDebug::GlitchLog* , const SkCoincidentSpans* ,
const SkCoincidentSpans* ) const;
void debugRelease(SkPathOpsDebug::GlitchLog* , const SkOpSegment* ) const;
#endif
void debugShowCoincidence() const;
const SkOpSpanBase* debugSpan(int id) const {
return SkDEBUGRELEASE(fGlobalState->debugSpan(id), nullptr);
}
void debugValidate() const;
void dump() const;
bool expand(DEBUG_COIN_DECLARE_ONLY_PARAMS());
bool extend(const SkOpPtT* coinPtTStart, const SkOpPtT* coinPtTEnd, const SkOpPtT* oppPtTStart,
const SkOpPtT* oppPtTEnd);
bool findOverlaps(SkOpCoincidence* DEBUG_COIN_DECLARE_PARAMS()) const;
void fixUp(SkOpPtT* deleted, const SkOpPtT* kept);
SkOpGlobalState* globalState() {
return fGlobalState;
}
const SkOpGlobalState* globalState() const {
return fGlobalState;
}
bool isEmpty() const {
return !fHead && !fTop;
}
bool mark(DEBUG_COIN_DECLARE_ONLY_PARAMS());
void markCollapsed(SkOpPtT* );
static bool Ordered(const SkOpPtT* coinPtTStart, const SkOpPtT* oppPtTStart) {
return Ordered(coinPtTStart->segment(), oppPtTStart->segment());
}
static bool Ordered(const SkOpSegment* coin, const SkOpSegment* opp);
void release(const SkOpSegment* );
void releaseDeleted();
private:
void add(const SkOpPtT* coinPtTStart, const SkOpPtT* coinPtTEnd, const SkOpPtT* oppPtTStart,
const SkOpPtT* oppPtTEnd) {
this->add(const_cast<SkOpPtT*>(coinPtTStart), const_cast<SkOpPtT*>(coinPtTEnd),
const_cast<SkOpPtT*>(oppPtTStart), const_cast<SkOpPtT*>(oppPtTEnd));
}
bool addEndMovedSpans(const SkOpSpan* base, const SkOpSpanBase* testSpan);
bool addEndMovedSpans(const SkOpPtT* ptT);
bool addIfMissing(const SkOpPtT* over1s, const SkOpPtT* over2s,
double tStart, double tEnd, SkOpSegment* coinSeg, SkOpSegment* oppSeg,
bool* added
SkDEBUGPARAMS(const SkOpPtT* over1e) SkDEBUGPARAMS(const SkOpPtT* over2e));
bool addOrOverlap(SkOpSegment* coinSeg, SkOpSegment* oppSeg,
double coinTs, double coinTe, double oppTs, double oppTe, bool* added);
bool addOverlap(const SkOpSegment* seg1, const SkOpSegment* seg1o,
const SkOpSegment* seg2, const SkOpSegment* seg2o,
const SkOpPtT* overS, const SkOpPtT* overE);
bool checkOverlap(SkCoincidentSpans* check,
const SkOpSegment* coinSeg, const SkOpSegment* oppSeg,
double coinTs, double coinTe, double oppTs, double oppTe,
SkTDArray<SkCoincidentSpans*>* overlaps) const;
bool contains(const SkOpSegment* seg, const SkOpSegment* opp, double oppT) const;
bool contains(const SkCoincidentSpans* coin, const SkOpSegment* seg,
const SkOpSegment* opp, double oppT) const;
#if DEBUG_COIN
void debugAddIfMissing(SkPathOpsDebug::GlitchLog* ,
const SkCoincidentSpans* outer, const SkOpPtT* over1s,
const SkOpPtT* over1e) const;
void debugAddIfMissing(SkPathOpsDebug::GlitchLog* ,
const SkOpPtT* over1s, const SkOpPtT* over2s,
double tStart, double tEnd,
const SkOpSegment* coinSeg, const SkOpSegment* oppSeg, bool* added,
const SkOpPtT* over1e, const SkOpPtT* over2e) const;
void debugAddEndMovedSpans(SkPathOpsDebug::GlitchLog* ,
const SkOpSpan* base, const SkOpSpanBase* testSpan) const;
void debugAddEndMovedSpans(SkPathOpsDebug::GlitchLog* ,
const SkOpPtT* ptT) const;
#endif
void fixUp(SkCoincidentSpans* coin, SkOpPtT* deleted, const SkOpPtT* kept);
void markCollapsed(SkCoincidentSpans* head, SkOpPtT* test);
bool overlap(const SkOpPtT* coinStart1, const SkOpPtT* coinEnd1,
const SkOpPtT* coinStart2, const SkOpPtT* coinEnd2,
double* overS, double* overE) const;
bool release(SkCoincidentSpans* coin, SkCoincidentSpans* );
void releaseDeleted(SkCoincidentSpans* );
void restoreHead();
// return coinPtT->segment()->t mapped from overS->fT <= t <= overE->fT
static double TRange(const SkOpPtT* overS, double t, const SkOpSegment* coinPtT
SkDEBUGPARAMS(const SkOpPtT* overE));
SkCoincidentSpans* fHead;
SkCoincidentSpans* fTop;
SkOpGlobalState* fGlobalState;
bool fContinue;
bool fSpanDeleted;
bool fPtAllocated;
bool fCoinExtended;
bool fSpanMerged;
};
#endif
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