checkpoint for shape ops

at minimum, the unit tests in SimplyNew_Test pass

git-svn-id: http://skia.googlecode.com/svn/trunk@5860 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/experimental/Intersection/QuadraticIntersection_Test.cpp b/experimental/Intersection/QuadraticIntersection_Test.cpp
index 08736cc..e077bd5 100644
--- a/experimental/Intersection/QuadraticIntersection_Test.cpp
+++ b/experimental/Intersection/QuadraticIntersection_Test.cpp
@@ -59,6 +59,10 @@
 }
 
 static const Quadratic testSet[] = {
+    {{400.121704, 149.468719}, {391.949493, 161.037186}, {391.949493, 181.202423}},
+    {{391.946747, 181.839218}, {391.946747, 155.62442}, {406.115479, 138.855438}},
+    {{360.048828125, 229.2578125}, {360.048828125, 224.4140625}, {362.607421875, 221.3671875}},
+    {{362.607421875, 221.3671875}, {365.166015625, 218.3203125}, {369.228515625, 218.3203125}},
     {{8, 8}, {10, 10}, {8, -10}},
     {{8, 8}, {12, 12}, {14, 4}},
     {{8, 8}, {9, 9}, {10, 8}}
@@ -71,12 +75,13 @@
         for (size_t inner = outer + 1; inner < testSetCount; ++inner) {
             const Quadratic& quad1 = testSet[outer];
             const Quadratic& quad2 = testSet[inner];
+            double tt1, tt2;
+        #if 0 // enable to test bezier clip style intersection
             Intersections intersections;
             intersect(quad1, quad2, intersections);
             if (!intersections.intersected()) {
                 SkDebugf("%s no intersection!\n", __FUNCTION__);
             }
-            double tt1, tt2;
             for (int pt = 0; pt < intersections.used(); ++pt) {
                 tt1 = intersections.fT[0][pt];
                 double tx1, ty1;
@@ -97,8 +102,10 @@
                 SkDebugf("%s [%d][%d] t1=%1.9g (%1.9g, %1.9g) t2=%1.9g\n", __FUNCTION__,
                     outer, inner, tt1, tx1, tx2, tt2);
             }
+        #endif
             Intersections intersections2;
             intersect2(quad1, quad2, intersections2);
+        #if 0
             SkASSERT(intersections.used() == intersections2.used());
             for (int pt = 0; pt < intersections2.used(); ++pt) {
                 tt1 = intersections2.fT[0][pt];
@@ -106,6 +113,28 @@
                 tt2 = intersections2.fT[1][pt];
                 SkASSERT(approximately_equal(intersections.fT[1][pt], tt2));
             }
+        #endif
+            for (int pt = 0; pt < intersections2.used(); ++pt) {
+                tt1 = intersections2.fT[0][pt];
+                double tx1, ty1;
+                xy_at_t(quad1, tt1, tx1, ty1);
+                int pt2 = intersections2.fFlip ? intersections2.used() - pt - 1 : pt;
+                tt2 = intersections2.fT[1][pt2];
+                double tx2, ty2;
+                xy_at_t(quad2, tt2, tx2, ty2);
+                if (!approximately_equal(tx1, tx2)) {
+                    SkDebugf("%s [%d,%d] x!= t1=%g (%g,%g) t2=%g (%g,%g)\n",
+                        __FUNCTION__, (int)index, pt, tt1, tx1, ty1, tt2, tx2, ty2);
+                    SkASSERT(0);
+                }
+                if (!approximately_equal(ty1, ty2)) {
+                    SkDebugf("%s [%d,%d] y!= t1=%g (%g,%g) t2=%g (%g,%g)\n",
+                        __FUNCTION__, (int)index, pt, tt1, tx1, ty1, tt2, tx2, ty2);
+                    SkASSERT(0);
+                }
+                SkDebugf("%s [%d][%d] t1=%1.9g (%1.9g, %1.9g) t2=%1.9g\n", __FUNCTION__,
+                    outer, inner, tt1, tx1, tx2, tt2);
+            }
         }
     }
 }
@@ -148,7 +177,7 @@
 }
 
 void QuadraticIntersection_Test() {
-    coincidentTest();
     oneOffTest();
+    coincidentTest();
     standardTestCases();
 }