experimental path-builder

include/core/SkPathTypes.h

Index: include/core/SkPathTypes.h
diff --git a/include/core/SkPathTypes.h b/include/core/SkPathTypes.h
new file mode 100644
index 0000000000000000000000000000000000000000..2a9b2642b0f5e96ee2cdc9f5693471ede6a6c00f
--- /dev/null
+++ b/include/core/SkPathTypes.h
@@ -0,0 +1,60 @@
+/*
+ * Copyright 2015 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef SkPathTypes_DEFINED
+#define SkPathTypes_DEFINED
+
+#include "SkTypes.h"
+
+enum SkPathFillType {
+    /** Specifies that "inside" is computed by a non-zero sum of signed edge crossings */
+    kWinding_SkPathFillType,
+    /** Specifies that "inside" is computed by an odd number of edge crossings */
+    kEvenOdd_SkPathFillType,
+    /** Same as Winding, but draws outside of the path, rather than inside */
+    kInverseWinding_SkPathFillType,
+    /** Same as EvenOdd, but draws outside of the path, rather than inside */
+    kInverseEvenOdd_SkPathFillType
+};
+
+static inline bool SkPathFillTypeIsInverse(SkPathFillType ft) {
+    return SkToBool(ft & 2);
+}
+
+enum SkPathConvexityType {
+    kUnknown_SkPathConvexityType,
+    kConvex_SkPathConvexityType,
+    kConcave_SkPathConvexityType
+};
+
+enum SkPathDirection {
+    /** Direction either has not been or could not be computed */
+    kUnknown_SkPathDirection,
+    /** clockwise direction for adding closed contours */
+    kCW_SkPathDirection,
+    /** counter-clockwise direction for adding closed contours */
+    kCCW_SkPathDirection,
+};
+
+enum SkPathSegmentMask {
+    kLine_SkPathSegmentMask   = 1 << 0,
+    kQuad_SkPathSegmentMask   = 1 << 1,
+    kConic_SkPathSegmentMask  = 1 << 2,
+    kCubic_SkPathSegmentMask  = 1 << 3,
+};
+
+enum SkPathVerb {
+    kMove_SkPathVerb,   //!< iter.next returns 1 point
+    kLine_SkPathVerb,   //!< iter.next returns 2 points
+    kQuad_SkPathVerb,   //!< iter.next returns 3 points
+    kConic_SkPathVerb,  //!< iter.next returns 3 points + iter.conicWeight()
+    kCubic_SkPathVerb,  //!< iter.next returns 4 points
+    kClose_SkPathVerb,  //!< iter.next returns 1 point (contour's moveTo pt)
+    kDone_SkPathVerb,   //!< iter.next returns 0 points
+};
+
+#endif