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shape ops work in progress

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M    Intersection/Simplify.cpp



git-svn-id: http://skia.googlecode.com/svn/trunk@4560 2bbb7eff-a529-9590-31e7-b0007b416f81
This commit is contained in:
caryclark@google.com 2012-07-12 12:52:50 +00:00
parent 5f47a39916
commit 027de226c1
1 changed files with 53 additions and 0 deletions
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53
experimental/Intersection/Simplify.cpp
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@ -28,6 +28,7 @@
#define DEBUG_CROSS 0
#define DEBUG_DUMP 0
#define DEBUG_PATH_CONSTRUCTION 0
#define DEBUG_ACTIVE_SPANS 0
#define DEBUG_WINDING 0
#define DEBUG_UNUSED 0 // set to expose unused functions
#define DEBUG_MARK_DONE 0
@ -41,12 +42,18 @@
#define DEBUG_CROSS 1
#define DEBUG_DUMP 1
#define DEBUG_PATH_CONSTRUCTION 1
#define DEBUG_ACTIVE_SPANS 01
#define DEBUG_WINDING 01
#define DEBUG_UNUSED 0 // set to expose unused functions
#define DEBUG_MARK_DONE 01
#endif
#if DEBUG_ACTIVE_SPANS && !DEBUG_DUMP
#undef DEBUG_DUMP
#define DEBUG_DUMP 1
#endif
#if DEBUG_DUMP
static const char* kLVerbStr[] = {"", "line", "quad", "cubic"};
// static const char* kUVerbStr[] = {"", "Line", "Quad", "Cubic"};
@ -1768,6 +1775,33 @@ public:
}
#endif
#if DEBUG_ACTIVE_SPANS
void debugShowActiveSpans(int contourID, int segmentIndex) {
if (done()) {
return;
}
for (int i = 0; i < fTs.count(); ++i) {
if (fTs[i].fDone) {
continue;
}
SkDebugf("%s contour=%d segment=%d (%d)", __FUNCTION__, contourID,
segmentIndex, fID);
SkDebugf(" (%1.9g,%1.9g", fPts[0].fX, fPts[0].fY);
for (int vIndex = 1; vIndex <= fVerb; ++vIndex) {
SkDebugf(" %1.9g,%1.9g", fPts[vIndex].fX, fPts[vIndex].fY);
}
const Span* span = &fTs[i];
SkDebugf(") fT=%d (%1.9g) (%1.9g,%1.9g)", i, fTs[i].fT,
xAtT(span), yAtT(i));
const Segment* other = fTs[i].fOther;
SkDebugf(" other=%d otherT=%1.9g otherIndex=%d", other->fID,
fTs[i].fOtherT, fTs[i].fOtherIndex);
SkDebugf(" windSum=%d windValue=%d\n", fTs[i].fWindSum,
fTs[i].fWindValue);
}
}
#endif
private:
const SkPoint* fPts;
SkPath::Verb fVerb;
@ -2071,6 +2105,14 @@ public:
}
#endif
#if DEBUG_ACTIVE_SPANS
void debugShowActiveSpans() {
for (int index = 0; index < fSegments.count(); ++index) {
fSegments[index].debugShowActiveSpans(fID, index);
}
}
#endif
protected:
void setBounds() {
int count = fSegments.count();
@ -2807,6 +2849,14 @@ static Segment* findChase(SkTDArray<Span*>& chase, int& tIndex, int& endIndex) {
return NULL;
}
#if DEBUG_ACTIVE_SPANS
static void debugShowActiveSpans(SkTDArray<Contour*>& contourList) {
for (int index = 0; index < contourList.count(); ++ index) {
contourList[index]->debugShowActiveSpans();
}
}
#endif
// Each segment may have an inside or an outside. Segments contained within
// winding may have insides on either side, and form a contour that should be
// ignored. Segments that are coincident with opposing direction segments may
@ -2884,6 +2934,9 @@ static void bridge(SkTDArray<Contour*>& contourList, SkPath& simple) {
simple.close();
}
current = findChase(chaseArray, index, endIndex);
#if DEBUG_ACTIVE_SPANS
debugShowActiveSpans(contourList);
#endif
if (!current) {
break;
}