move SkFilterShader into private header
Review URL: https://codereview.appspot.com/6454107
git-svn-id: http://skia.googlecode.com/svn/trunk@4961 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/core/SkFilterShader.h b/src/core/SkFilterShader.h
new file mode 100644
index 0000000..f637584
--- /dev/null
+++ b/src/core/SkFilterShader.h
@@ -0,0 +1,42 @@
+/*
+ * Copyright 2012 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef SkFilterShader_DEFINED
+#define SkFilterShader_DEFINED
+
+#include "SkShader.h"
+
+class SkColorFilter;
+
+class SkFilterShader : public SkShader {
+public:
+ SkFilterShader(SkShader* shader, SkColorFilter* filter);
+ virtual ~SkFilterShader();
+
+ // override
+ virtual uint32_t getFlags();
+ virtual bool setContext(const SkBitmap& device, const SkPaint& paint,
+ const SkMatrix& matrix);
+ virtual void shadeSpan(int x, int y, SkPMColor result[], int count);
+ virtual void shadeSpan16(int x, int y, uint16_t result[], int count);
+ virtual void beginSession();
+ virtual void endSession();
+
+ SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkFilterShader)
+
+protected:
+ SkFilterShader(SkFlattenableReadBuffer& );
+ virtual void flatten(SkFlattenableWriteBuffer&) const SK_OVERRIDE;
+
+private:
+ SkShader* fShader;
+ SkColorFilter* fFilter;
+
+ typedef SkShader INHERITED;
+};
+
+#endif