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

4 files changed, 45 insertions, 2 deletions

diff --git a/src/core/SkBlitter.cpp b/src/core/SkBlitter.cpp
index 8acdeb1112..fda8d41ada 100644
--- a/src/core/SkBlitter.cpp
+++ b/src/core/SkBlitter.cpp
@@ -11,6 +11,7 @@
 #include "SkAntiRun.h"
 #include "SkColor.h"
 #include "SkColorFilter.h"
+#include "SkFilterShader.h"
 #include "SkMask.h"
 #include "SkMaskFilter.h"
 #include "SkTemplatesPriv.h"
diff --git a/src/core/SkColorFilter.cpp b/src/core/SkColorFilter.cpp
index 74e1db1f4c..e781350023 100644
--- a/src/core/SkColorFilter.cpp
+++ b/src/core/SkColorFilter.cpp
@@ -1,4 +1,3 @@
-
 /*
  * Copyright 2006 The Android Open Source Project
  *
@@ -6,8 +5,8 @@
  * found in the LICENSE file.
  */
 
-
 #include "SkColorFilter.h"
+#include "SkFilterShader.h"
 #include "SkShader.h"
 #include "SkUnPreMultiply.h"
 
diff --git a/src/core/SkFilterShader.h b/src/core/SkFilterShader.h
new file mode 100644
index 0000000000..f637584718
--- /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
diff --git a/src/effects/SkTableColorFilter.cpp b/src/effects/SkTableColorFilter.cpp
index d6cbb5e2d5..769a40d27f 100644
--- a/src/effects/SkTableColorFilter.cpp
+++ b/src/effects/SkTableColorFilter.cpp
@@ -1,3 +1,4 @@
+#include "SkBitmap.h"
 #include "SkColorPriv.h"
 #include "SkTableColorFilter.h"
 #include "SkUnPreMultiply.h"