Revert of Revert of enable conics gm

gm/conicpaths.cpp

Index: gm/conicpaths.cpp
diff --git a/gm/conicpaths.cpp b/gm/conicpaths.cpp
index 96242faf5f9a5a04fd24de1c9f3af2a30cd89e37..d04cd263598f321f16cfaf86f65b2ccca1e64695 100644
--- a/gm/conicpaths.cpp
+++ b/gm/conicpaths.cpp
@@ -17,14 +17,14 @@
     }
 
     SkISize onISize() SK_OVERRIDE {
-        return SkISize::Make(950, 1000);
+        return SkISize::Make(920, 960);
     }
 
     void onOnceBeforeDraw() SK_OVERRIDE {
         {
             const SkScalar w = SkScalarSqrt(2)/2;
             SkPath* conicCirlce = &fPaths.push_back();
-            conicCirlce->moveTo(0, -0);
+            conicCirlce->moveTo(0, 0);
             conicCirlce->conicTo(0, 50, 50, 50, w);
             conicCirlce->rConicTo(50, 0, 50, -50, w);
             conicCirlce->rConicTo(0, -50, -50, -50, w);
@@ -33,43 +33,43 @@
         }
         {
             SkPath* hyperbola = &fPaths.push_back();
-            hyperbola->moveTo(0, -0);
+            hyperbola->moveTo(0, 0);
             hyperbola->conicTo(0, 100, 100, 100, 2);
         }
         {
             SkPath* thinHyperbola = &fPaths.push_back();
-            thinHyperbola->moveTo(0, -0);
+            thinHyperbola->moveTo(0, 0);
             thinHyperbola->conicTo(100, 100, 5, 0, 2);
         }
         {
             SkPath* veryThinHyperbola = &fPaths.push_back();
-            veryThinHyperbola->moveTo(0, -0);
+            veryThinHyperbola->moveTo(0, 0);
             veryThinHyperbola->conicTo(100, 100, 1, 0, 2);
         }
         {
             SkPath* closedHyperbola = &fPaths.push_back();
-            closedHyperbola->moveTo(0, -0);
+            closedHyperbola->moveTo(0, 0);
             closedHyperbola->conicTo(100, 100, 0, 0, 2);
         }
         {
             // using 1 as weight defaults to using quadTo
             SkPath* nearParabola = &fPaths.push_back();
-            nearParabola->moveTo(0, -0);
+            nearParabola->moveTo(0, 0);
             nearParabola->conicTo(0, 100, 100, 100, 0.999f);
         }
         {
             SkPath* thinEllipse = &fPaths.push_back();
-            thinEllipse->moveTo(0, -0);
+            thinEllipse->moveTo(0, 0);
             thinEllipse->conicTo(100, 100, 5, 0, SK_ScalarHalf);
         }
         {
             SkPath* veryThinEllipse = &fPaths.push_back();
-            veryThinEllipse->moveTo(0, -0);
+            veryThinEllipse->moveTo(0, 0);
             veryThinEllipse->conicTo(100, 100, 1, 0, SK_ScalarHalf);
         }
         {
             SkPath* closedEllipse = &fPaths.push_back();
-            closedEllipse->moveTo(0, -0);
+            closedEllipse->moveTo(0,  0);
             closedEllipse->conicTo(100, 100, 0, 0, SK_ScalarHalf);
         }
     }
@@ -77,58 +77,39 @@
     void onDraw(SkCanvas* canvas) SK_OVERRIDE {
         const SkAlpha kAlphaValue[] = { 0xFF, 0x40 };
 
-        SkScalar maxH = 0;
         const SkScalar margin = 15;
         canvas->translate(margin, margin);
-        canvas->save();
 
-        SkScalar x = margin;
-        int counter = 0;
+        SkPaint paint;
         for (int p = 0; p < fPaths.count(); ++p) {
+            canvas->save();
             for (size_t a = 0; a < SK_ARRAY_COUNT(kAlphaValue); ++a) {
+                paint.setARGB(kAlphaValue[a], 0, 0, 0);
                 for (int aa = 0; aa < 2; ++aa) {
+                    paint.setAntiAlias(SkToBool(aa));
                     for (int fh = 0; fh < 2; ++fh) {
+                        paint.setStyle(fh ? SkPaint::kStroke_Style : SkPaint::kFill_Style);
 
                         const SkRect& bounds = fPaths[p].getBounds();
-
-                        SkPaint paint;
-                        paint.setARGB(kAlphaValue[a], 0, 0, 0);
-                        paint.setAntiAlias(SkToBool(aa));
-                        if (fh == 1) {
-                            paint.setStyle(SkPaint::kStroke_Style);
-                            paint.setStrokeWidth(0);
-                        } else if (fh == 0) {
-                            paint.setStyle(SkPaint::kFill_Style);
-                        }
                         canvas->save();
                         canvas->translate(-bounds.fLeft, -bounds.fTop);
                         canvas->drawPath(fPaths[p], paint);
                         canvas->restore();
 
-                        maxH = SkMaxScalar(maxH, bounds.height());
-
-                        SkScalar dx = bounds.width() + margin;
-                        x += dx;
-                        canvas->translate(dx, 0);
-
-                        if (++counter == 8) {
-                            counter = 0;
-                            
-                            canvas->restore();
-                            canvas->translate(0, maxH + margin);
-                            canvas->save();
-                            maxH = 0;
-                            x = margin;
-                        }
+                        canvas->translate(110, 0);
                     }
                 }
             }
+            canvas->restore();
+            canvas->translate(0, 110);
         }
         canvas->restore();
     }
 
     uint32_t onGetFlags() const SK_OVERRIDE {
-        return kSkipPDF_Flag;
+        // tiling w/ non-antialias paths can cause off-by-1-pixels differences which are
+        // unavoidable (chopping in floats -vs- stepping in scan-converter).
+        return kSkipTiled_Flag;
     }
 
 private: