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1 /* | 1 /* |
2 * Copyright 2012 Google Inc. | 2 * Copyright 2012 Google Inc. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
6 */ | 6 */ |
7 #include "SkAddIntersections.h" | 7 #include "SkAddIntersections.h" |
8 #include "SkOpEdgeBuilder.h" | 8 #include "SkOpEdgeBuilder.h" |
9 #include "SkPathOpsCommon.h" | 9 #include "SkPathOpsCommon.h" |
10 #include "SkPathWriter.h" | 10 #include "SkPathWriter.h" |
11 | 11 |
12 static bool bridgeWinding(SkTDArray<SkOpContour*>& contourList, SkPathWriter* si
mple) { | 12 static bool bridgeWinding(SkTArray<SkOpContour*, true>& contourList, SkPathWrite
r* simple) { |
13 bool firstContour = true; | 13 bool firstContour = true; |
14 bool unsortable = false; | 14 bool unsortable = false; |
15 bool topUnsortable = false; | 15 bool topUnsortable = false; |
16 SkPoint topLeft = {SK_ScalarMin, SK_ScalarMin}; | 16 SkPoint topLeft = {SK_ScalarMin, SK_ScalarMin}; |
17 do { | 17 do { |
18 int index, endIndex; | 18 int index, endIndex; |
19 bool topDone; | 19 bool topDone; |
20 SkOpSegment* current = FindSortableTop(contourList, &firstContour, &inde
x, &endIndex, | 20 SkOpSegment* current = FindSortableTop(contourList, &firstContour, &inde
x, &endIndex, |
21 &topLeft, &topUnsortable, &topDone, false); | 21 &topLeft, &topUnsortable, &topDone, false); |
22 if (!current) { | 22 if (!current) { |
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87 #endif | 87 #endif |
88 if (!current) { | 88 if (!current) { |
89 break; | 89 break; |
90 } | 90 } |
91 } while (true); | 91 } while (true); |
92 } while (true); | 92 } while (true); |
93 return simple->someAssemblyRequired(); | 93 return simple->someAssemblyRequired(); |
94 } | 94 } |
95 | 95 |
96 // returns true if all edges were processed | 96 // returns true if all edges were processed |
97 static bool bridgeXor(SkTDArray<SkOpContour*>& contourList, SkPathWriter* simple
) { | 97 static bool bridgeXor(SkTArray<SkOpContour*, true>& contourList, SkPathWriter* s
imple) { |
98 SkOpSegment* current; | 98 SkOpSegment* current; |
99 int start, end; | 99 int start, end; |
100 bool unsortable = false; | 100 bool unsortable = false; |
101 bool closable = true; | 101 bool closable = true; |
102 while ((current = FindUndone(contourList, &start, &end))) { | 102 while ((current = FindUndone(contourList, &start, &end))) { |
103 do { | 103 do { |
104 #if DEBUG_ACTIVE_SPANS | 104 #if DEBUG_ACTIVE_SPANS |
105 if (!unsortable && current->done()) { | 105 if (!unsortable && current->done()) { |
106 DebugShowActiveSpans(contourList); | 106 DebugShowActiveSpans(contourList); |
107 } | 107 } |
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154 // returns 1 for evenodd, -1 for winding, regardless of inverse-ness | 154 // returns 1 for evenodd, -1 for winding, regardless of inverse-ness |
155 SkPath::FillType fillType = path.isInverseFillType() ? SkPath::kInverseEvenO
dd_FillType | 155 SkPath::FillType fillType = path.isInverseFillType() ? SkPath::kInverseEvenO
dd_FillType |
156 : SkPath::kEvenOdd_FillType; | 156 : SkPath::kEvenOdd_FillType; |
157 | 157 |
158 // turn path into list of segments | 158 // turn path into list of segments |
159 SkTArray<SkOpContour> contours; | 159 SkTArray<SkOpContour> contours; |
160 SkOpEdgeBuilder builder(path, contours); | 160 SkOpEdgeBuilder builder(path, contours); |
161 if (!builder.finish()) { | 161 if (!builder.finish()) { |
162 return false; | 162 return false; |
163 } | 163 } |
164 SkTDArray<SkOpContour*> contourList; | 164 SkTArray<SkOpContour*, true> contourList; |
165 MakeContourList(contours, contourList, false, false); | 165 MakeContourList(contours, contourList, false, false); |
166 SkOpContour** currentPtr = contourList.begin(); | 166 SkOpContour** currentPtr = contourList.begin(); |
167 result->setFillType(fillType); | 167 result->setFillType(fillType); |
168 result->reset(); | 168 result->reset(); |
169 if (!currentPtr) { | 169 if (!currentPtr) { |
170 return true; | 170 return true; |
171 } | 171 } |
172 SkOpContour** listEnd = contourList.end(); | 172 SkOpContour** listEnd = contourList.end(); |
173 // find all intersections between segments | 173 // find all intersections between segments |
174 do { | 174 do { |
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196 { // if some edges could not be resolved, assemble remaining fragments | 196 { // if some edges could not be resolved, assemble remaining fragments |
197 SkPath temp; | 197 SkPath temp; |
198 temp.setFillType(fillType); | 198 temp.setFillType(fillType); |
199 SkPathWriter assembled(temp); | 199 SkPathWriter assembled(temp); |
200 Assemble(simple, &assembled); | 200 Assemble(simple, &assembled); |
201 *result = *assembled.nativePath(); | 201 *result = *assembled.nativePath(); |
202 result->setFillType(fillType); | 202 result->setFillType(fillType); |
203 } | 203 } |
204 return true; | 204 return true; |
205 } | 205 } |
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