1 files changed, 49 insertions, 0 deletions
diff --git a/include/effects/SkXfermodeImageFilter.h b/include/effects/SkXfermodeImageFilter.h
new file mode 100644
index 0000000000..ec7ce87046
--- /dev/null
+++ b/include/effects/SkXfermodeImageFilter.h
@@ -0,0 +1,49 @@
+/*
+ * Copyright 2013 The Android Open Source Project
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef SkXfermodeImageFilter_DEFINED
+#define SkXfermodeImageFilter_DEFINED
+
+#include "SkImageFilter.h"
+
+class SkBitmap;
+class SkXfermode;
+
+class SK_API SkXfermodeImageFilter : public SkImageFilter {
+    /**
+     * This filter takes an xfermode, and uses it to composite the foreground
+     * over the background.  If foreground or background is NULL, the input
+     * bitmap (src) is used instead.
+      */
+
+public:
+    SkXfermodeImageFilter(SkXfermode* mode, SkImageFilter* background, SkImageFilter* foreground = NULL);
+
+    virtual ~SkXfermodeImageFilter();
+
+    SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkXfermodeImageFilter)
+
+    virtual bool onFilterImage(Proxy* proxy,
+                               const SkBitmap& src,
+                               const SkMatrix& ctm,
+                               SkBitmap* dst,
+                               SkIPoint* offset) SK_OVERRIDE;
+#if SK_SUPPORT_GPU
+    virtual bool canFilterImageGPU() const SK_OVERRIDE { return true; }
+    virtual bool filterImageGPU(Proxy* proxy, const SkBitmap& src, SkBitmap* result) SK_OVERRIDE;
+#endif
+
+protected:
+    explicit SkXfermodeImageFilter(SkFlattenableReadBuffer& buffer);
+    virtual void flatten(SkFlattenableWriteBuffer&) const SK_OVERRIDE;
+
+private:
+    SkXfermode* fMode;
+    typedef SkImageFilter INHERITED;
+};
+
+#endif