add conics to path ops

src/pathops/SkPathOpsRect.cpp

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
+#include "SkPathOpsConic.h"
 #include "SkPathOpsCubic.h"
 #include "SkPathOpsLine.h"
 #include "SkPathOpsQuad.h"
 #include "SkPathOpsRect.h"
 
 void SkDRect::setBounds(const SkDQuad& quad) {
     set(quad[0]);
     add(quad[2]);
     double tValues[2];
     int roots = 0;
     if (!between(quad[0].fX, quad[1].fX, quad[2].fX)) {
         roots = SkDQuad::FindExtrema(quad[0].fX, quad[1].fX, quad[2].fX, tValues);
     }
     if (!between(quad[0].fY, quad[1].fY, quad[2].fY)) {
         roots += SkDQuad::FindExtrema(quad[0].fY, quad[1].fY, quad[2].fY, &tValues[roots]);
     }
     for (int x = 0; x < roots; ++x) {
         add(quad.ptAtT(tValues[x]));
     }
 }
 
+void SkDRect::setBounds(const SkDConic& conic) {
+    set(conic[0]);
+    add(conic[2]);
+    double tValues[2];
+    int roots = 0;
+    if (!between(conic[0].fX, conic[1].fX, conic[2].fX)) {
+        roots = SkDConic::FindExtrema(&conic[0].fX, conic.fWeight, tValues);
+    }
+    if (!between(conic[0].fY, conic[1].fY, conic[2].fY)) {
+        roots += SkDConic::FindExtrema(&conic[0].fY, conic.fWeight, &tValues[roots]);
+    }
+    for (int x = 0; x < roots; ++x) {
+        add(conic.ptAtT(tValues[x]));
+    }
+}
+
 static bool is_bounded_by_end_points(double a, double b, double c, double d) {
     return between(a, b, d) && between(a, c, d);
 }
 
 void SkDRect::setBounds(const SkDCubic& c) {
     set(c[0]);
     add(c[3]);
     double tValues[4];
     int roots = 0;
     if (!is_bounded_by_end_points(c[0].fX, c[1].fX, c[2].fX, c[3].fX)) {
         roots = SkDCubic::FindExtrema(c[0].fX, c[1].fX, c[2].fX, c[3].fX, tValues);
     }
     if (!is_bounded_by_end_points(c[0].fY, c[1].fY, c[2].fY, c[3].fY)) {
         roots += SkDCubic::FindExtrema(c[0].fY, c[1].fY, c[2].fY, c[3].fY, &tValues[roots]);
     }
     for (int x = 0; x < roots; ++x) {
         add(c.ptAtT(tValues[x]));
     }
 }