LCOV - code coverage report
Current view: top level - gfx/skia/skia/src/pathops - SkOpContour.cpp (source / functions) Hit Total Coverage
Test: output.info Lines: 0 73 0.0 %
Date: 2017-07-14 16:53:18 Functions: 0 9 0.0 %
Legend: Lines: hit not hit

          Line data    Source code
       1             : /*
       2             : * Copyright 2013 Google Inc.
       3             : *
       4             : * Use of this source code is governed by a BSD-style license that can be
       5             : * found in the LICENSE file.
       6             : */
       7             : #include "SkOpContour.h"
       8             : #include "SkOpTAllocator.h"
       9             : #include "SkPathWriter.h"
      10             : #include "SkReduceOrder.h"
      11             : #include "SkTSort.h"
      12             : 
      13           0 : void SkOpContour::toPath(SkPathWriter* path) const {
      14           0 :     if (!this->count()) {
      15           0 :         return;
      16             :     }
      17           0 :     const SkOpSegment* segment = &fHead;
      18           0 :     do {
      19           0 :         SkAssertResult(segment->addCurveTo(segment->head(), segment->tail(), path));
      20             :     } while ((segment = segment->next()));
      21           0 :     path->finishContour();
      22           0 :     path->assemble();
      23             : }
      24             : 
      25           0 : void SkOpContour::toReversePath(SkPathWriter* path) const {
      26           0 :     const SkOpSegment* segment = fTail;
      27           0 :     do {
      28           0 :         SkAssertResult(segment->addCurveTo(segment->tail(), segment->head(), path));
      29             :     } while ((segment = segment->prev()));
      30           0 :     path->finishContour();
      31           0 :     path->assemble();
      32           0 : }
      33             : 
      34           0 : SkOpSpan* SkOpContour::undoneSpan() {
      35           0 :     SkOpSegment* testSegment = &fHead;
      36           0 :     bool allDone = true;
      37           0 :     do {
      38           0 :         if (testSegment->done()) {
      39           0 :             continue;
      40             :         }
      41           0 :         allDone = false;
      42           0 :         return testSegment->undoneSpan();
      43             :     } while ((testSegment = testSegment->next()));
      44           0 :     if (allDone) {
      45           0 :       fDone = true;
      46             :     }
      47           0 :     return nullptr;
      48             : }
      49             : 
      50           0 : void SkOpContourBuilder::addConic(SkPoint pts[3], SkScalar weight) {
      51           0 :     this->flush();
      52           0 :     fContour->addConic(pts, weight);
      53           0 : }
      54             : 
      55           0 : void SkOpContourBuilder::addCubic(SkPoint pts[4]) {
      56           0 :     this->flush();
      57           0 :     fContour->addCubic(pts);
      58           0 : }
      59             : 
      60           0 : void SkOpContourBuilder::addCurve(SkPath::Verb verb, const SkPoint pts[4], SkScalar weight) {
      61           0 :     if (SkPath::kLine_Verb == verb) {
      62           0 :         this->addLine(pts);
      63           0 :         return;
      64             :     }
      65           0 :     SkArenaAlloc* allocator = fContour->globalState()->allocator();
      66           0 :     switch (verb) {
      67             :         case SkPath::kQuad_Verb: {
      68           0 :             SkPoint* ptStorage = SkOpTAllocator<SkPoint>::AllocateArray(allocator, 3);
      69           0 :             memcpy(ptStorage, pts, sizeof(SkPoint) * 3);
      70           0 :             this->addQuad(ptStorage);
      71           0 :         } break;
      72             :         case SkPath::kConic_Verb: {
      73           0 :             SkPoint* ptStorage = SkOpTAllocator<SkPoint>::AllocateArray(allocator, 3);
      74           0 :             memcpy(ptStorage, pts, sizeof(SkPoint) * 3);
      75           0 :             this->addConic(ptStorage, weight);
      76           0 :         } break;
      77             :         case SkPath::kCubic_Verb: {
      78           0 :             SkPoint* ptStorage = SkOpTAllocator<SkPoint>::AllocateArray(allocator, 4);
      79           0 :             memcpy(ptStorage, pts, sizeof(SkPoint) * 4);
      80           0 :             this->addCubic(ptStorage);
      81           0 :         } break;
      82             :         default:
      83           0 :             SkASSERT(0);
      84             :     }
      85             : }
      86             : 
      87           0 : void SkOpContourBuilder::addLine(const SkPoint pts[2]) {
      88             :     // if the previous line added is the exact opposite, eliminate both
      89           0 :     if (fLastIsLine) {
      90           0 :         if (fLastLine[0] == pts[1] && fLastLine[1] == pts[0]) {
      91           0 :             fLastIsLine = false;
      92           0 :             return;
      93             :         } else {
      94           0 :             flush();
      95             :         }
      96             :     }
      97           0 :     memcpy(fLastLine, pts, sizeof(fLastLine));
      98           0 :     fLastIsLine = true;
      99             : }
     100             : 
     101           0 : void SkOpContourBuilder::addQuad(SkPoint pts[3]) {
     102           0 :     this->flush();
     103           0 :     fContour->addQuad(pts);
     104           0 : }
     105             : 
     106           0 : void SkOpContourBuilder::flush() {
     107           0 :     if (!fLastIsLine)
     108           0 :         return;
     109           0 :     SkArenaAlloc* allocator = fContour->globalState()->allocator();
     110           0 :     SkPoint* ptStorage = SkOpTAllocator<SkPoint>::AllocateArray(allocator, 2);
     111           0 :     memcpy(ptStorage, fLastLine, sizeof(fLastLine));
     112           0 :     (void) fContour->addLine(ptStorage);
     113           0 :     fLastIsLine = false;
     114             : }

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