Analytic AntiAlias for Convex Shapes

samplecode/SampleApp.cpp

Index: samplecode/SampleApp.cpp
diff --git a/samplecode/SampleApp.cpp b/samplecode/SampleApp.cpp
index 62970302df50d53de5e5ae7a221b23278b8afdaf..572d963f1fc2bad213df70159a72cc55231f687a 100644
--- a/samplecode/SampleApp.cpp
+++ b/samplecode/SampleApp.cpp
@@ -33,6 +33,7 @@
 #include "SkTypeface.h"
 #include "SkWindow.h"
 #include "sk_tool_utils.h"
+#include "SkScan.h"
 
 #if SK_SUPPORT_GPU
 #   include "gl/GrGLInterface.h"
@@ -1683,6 +1684,11 @@ bool SampleWindow::onHandleChar(SkUnichar uni) {
                 this->inval(nullptr);
             }
             break;
+        case 'A':
+            GlobalAAConfig::getInstance().fUseAnalyticAA =
+                    !GlobalAAConfig::getInstance().fUseAnalyticAA;
+            this->inval(nullptr);
+            break;
         case 'B':
             post_event_to_sink(new SkEvent("PictFileView::toggleBBox"), curr_view(this));
             // Cannot call updateTitle() synchronously, because the toggleBBox event is still in