SkCanvas interface for drawing a patch.

include/utils/SkPatchUtils.h

Index: include/utils/SkPatchUtils.h
diff --git a/include/utils/SkPatchUtils.h b/include/utils/SkPatchUtils.h
new file mode 100644
index 0000000000000000000000000000000000000000..59454e53545573194f842c455d150aa6ff99c964
--- /dev/null
+++ b/include/utils/SkPatchUtils.h
@@ -0,0 +1,23 @@
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef SkPatchUtils_DEFINED
+#define SkPatchUtils_DEFINED
+
+#include "SkPatch.h"
+#include "SkMatrix.h"
+
+class SK_API SkPatchUtils {
+public:
+    // size in pixels of each partition per axis, adjust this knob
+    static const int kPartitionSize = 30;

[bsalomon, 2014/08/01 21:02:28]

I'd move this into the cpp. It's not really part of the  interface.

Also, I think this file should probably be in src/utils. We try to use include/
for files that we would want a Skia client to #include.

[dandov, 2014/08/01 21:25:01]

Done.

+    
+    static SkIPoint GetLevelOfDetail(const SkPatch& patch, const SkMatrix* matrix);
+
+};
+
+#endif