1 files changed, 56 insertions, 0 deletions
diff --git a/effects/SkBicubicImageFilter.h b/effects/SkBicubicImageFilter.h
new file mode 100644
index 0000000..bd918eb
--- /dev/null
+++ b/effects/SkBicubicImageFilter.h
@@ -0,0 +1,56 @@
+/*
+ * 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 SkBicubicImageFilter_DEFINED
+#define SkBicubicImageFilter_DEFINED
+
+#include "SkImageFilter.h"
+#include "SkScalar.h"
+#include "SkSize.h"
+#include "SkPoint.h"
+
+/*! \class SkBicubicImageFilter
+    Bicubic resampling image filter.  This filter does a 16-tap bicubic
+    filter using the given matrix.
+ */
+
+class SK_API SkBicubicImageFilter : public SkImageFilter {
+public:
+    /** Construct a (scaling-only) bicubic resampling image filter.
+        @param scale        How much to scale the image.
+        @param coefficients The 16 coefficients of the bicubic matrix.
+        @param input        The input image filter.  If NULL, the src bitmap
+                            passed to filterImage() is used instead.
+    */
+
+    SkBicubicImageFilter(const SkSize& scale, const SkScalar coefficients[16],
+                         SkImageFilter* input = NULL);
+    static SkBicubicImageFilter* CreateMitchell(const SkSize& scale, SkImageFilter* input = NULL);
+    virtual ~SkBicubicImageFilter();
+
+    SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkBicubicImageFilter)
+
+protected:
+    SkBicubicImageFilter(SkFlattenableReadBuffer& buffer);
+    virtual void flatten(SkFlattenableWriteBuffer&) const SK_OVERRIDE;
+
+    virtual bool onFilterImage(Proxy*, const SkBitmap& src, const SkMatrix&,
+                               SkBitmap* result, SkIPoint* loc) SK_OVERRIDE;
+
+#if SK_SUPPORT_GPU
+    virtual bool canFilterImageGPU() const SK_OVERRIDE { return true; }
+    virtual bool filterImageGPU(Proxy* proxy, const SkBitmap& src, const SkMatrix& ctm,
+                                SkBitmap* result, SkIPoint* offset) SK_OVERRIDE;
+#endif
+
+private:
+    SkSize    fScale;
+    SkScalar  fCoefficients[16];
+    typedef SkImageFilter INHERITED;
+};
+
+#endif