move header

fix warning in release build



git-svn-id: http://skia.googlecode.com/svn/trunk@1136 2bbb7eff-a529-9590-31e7-b0007b416f81

1 files changed, 42 insertions, 0 deletions

diff --git a/include/core/SkClampRange.h b/include/core/SkClampRange.h
new file mode 100644
index 0000000000..b80c78be67
--- /dev/null
+++ b/include/core/SkClampRange.h
@@ -0,0 +1,42 @@
+/*
+    Copyright 2011 Google Inc.
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+ */
+
+#ifndef SkClampRange_DEFINED
+#define SkClampRange_DEFINED
+
+#include "SkFixed.h"
+
+/**
+ *  Iteration fixed fx by dx, clamping as you go to [0..0xFFFF], this class
+ *  computes the (up to) 3 spans there are:
+ *
+ *  range0: use constant value V0
+ *  range1: iterate as usual fx += dx
+ *  range2: use constant value V1
+ */
+struct SkClampRange {
+    int fCount0;    // count for fV0
+    int fCount1;    // count for interpolating (fV0...fV1)
+    int fCount2;    // count for fV1
+    int fV0, fV1;
+
+    void init(SkFixed fx, SkFixed dx, int count, int v0, int v1);
+
+    static void UnitTest();
+};
+
+#endif
+