| /* |
| * 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 |