Add implicit hairline conic rendering to GPU

gm/conicpaths.cpp

Index: gm/conicpaths.cpp
diff --git a/gm/conicpaths.cpp b/gm/conicpaths.cpp
index e7dbb31e8c1cd60c50dcdd14718afe93231d4215..8bfc6aba905c63adbe7857bcf848edf6490cacec 100644
--- a/gm/conicpaths.cpp
+++ b/gm/conicpaths.cpp
@@ -23,6 +23,7 @@ protected:
     }
 
     virtual void onOnceBeforeDraw() SK_OVERRIDE {
+/*
         {
             SkPath* conicCirlce = &fPaths.push_back();
             conicCirlce->moveTo(0, -0);
@@ -40,6 +41,7 @@ protected:
                                          SkScalarHalf(SkScalarSqrt(2)));
 
         }
+*/
         {
             SkPath* hyperbola = &fPaths.push_back();
             hyperbola->moveTo(0, -0);
@@ -47,6 +49,7 @@ protected:
                                         SkIntToScalar(100), SkIntToScalar(100),
                                         SkIntToScalar(2));
         }
+
         {
             SkPath* thinHyperbola = &fPaths.push_back();
             thinHyperbola->moveTo(0, -0);
@@ -62,6 +65,20 @@ protected:
                                         SkIntToScalar(2));
         }
         {
+            SkPath* lopsidedHyperbola = &fPaths.push_back();
+            lopsidedHyperbola->moveTo(0, -0);
+            lopsidedHyperbola->conicTo(SkIntToScalar(100), SkIntToScalar(100),
+                                        SkIntToScalar(90), SkIntToScalar(110),
+                                        SkIntToScalar(2));
+        }
+        {
+            SkPath* lopsidedHyperbola = &fPaths.push_back();
+            lopsidedHyperbola->moveTo(0, -0);
+            lopsidedHyperbola->conicTo(SkIntToScalar(100), SkIntToScalar(100),
+                                        SkIntToScalar(70), SkIntToScalar(40),
+                                        SkIntToScalar(2));
+        }
+        {
             SkPath* closedHyperbola = &fPaths.push_back();
             closedHyperbola->moveTo(0, -0);
             closedHyperbola->conicTo(SkIntToScalar(100), SkIntToScalar(100),
@@ -90,6 +107,7 @@ protected:
                                         SkIntToScalar(1), SkIntToScalar(0),
                                         SK_ScalarHalf);
         }
+/*
         {
             SkPath* closedEllipse = &fPaths.push_back();
             closedEllipse->moveTo(0, -0);
@@ -97,6 +115,7 @@ protected:
                                         SkIntToScalar(0), SkIntToScalar(0),
                                         SK_ScalarHalf);
         }
+*/
     }
 
     virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
@@ -114,8 +133,8 @@ protected:
         SkScalar x = SkIntToScalar(kMargin);
         for (int p = 0; p < fPaths.count(); ++p) {
             for (size_t a = 0; a < SK_ARRAY_COUNT(kAlphaValue); ++a) {
-                for (int aa = 0; aa < 2; ++aa) {
-                    for (int fh = 0; fh < 2; ++fh) {
+                for (int aa = 1; aa < 2; ++aa) {
+                    for (int fh = 1; fh < 2; ++fh) {
 
                         const SkRect& bounds = fPaths[p].getBounds();