| /* |
| * Copyright 2012 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 SkMorphologyImageFilter_DEFINED |
| #define SkMorphologyImageFilter_DEFINED |
| |
| #include "SkColor.h" |
| #include "SkImageFilter.h" |
| #include "SkSize.h" |
| |
| class SK_API SkMorphologyImageFilter : public SkImageFilter { |
| public: |
| virtual void computeFastBounds(const SkRect& src, SkRect* dst) const SK_OVERRIDE; |
| virtual bool onFilterBounds(const SkIRect& src, const SkMatrix& ctm, SkIRect* dst) const SK_OVERRIDE; |
| |
| /** |
| * All morphology procs have the same signature: src is the source buffer, dst the |
| * destination buffer, radius is the morphology radius, width and height are the bounds |
| * of the destination buffer (in pixels), and srcStride and dstStride are the |
| * number of pixels per row in each buffer. All buffers are 8888. |
| */ |
| |
| typedef void (*Proc)(const SkPMColor* src, SkPMColor* dst, int radius, |
| int width, int height, int srcStride, int dstStride); |
| |
| protected: |
| SkMorphologyImageFilter(int radiusX, int radiusY, SkImageFilter* input, |
| const CropRect* cropRect); |
| bool filterImageGeneric(Proc procX, Proc procY, |
| Proxy*, const SkBitmap& src, const Context&, |
| SkBitmap* result, SkIPoint* offset) const; |
| SkMorphologyImageFilter(SkReadBuffer& buffer); |
| virtual void flatten(SkWriteBuffer&) const SK_OVERRIDE; |
| #if SK_SUPPORT_GPU |
| virtual bool canFilterImageGPU() const SK_OVERRIDE { return true; } |
| bool filterImageGPUGeneric(bool dilate, Proxy* proxy, const SkBitmap& src, |
| const Context& ctm, SkBitmap* result, |
| SkIPoint* offset) const; |
| #endif |
| |
| SkISize radius() const { return fRadius; } |
| |
| private: |
| SkISize fRadius; |
| typedef SkImageFilter INHERITED; |
| }; |
| |
| class SK_API SkDilateImageFilter : public SkMorphologyImageFilter { |
| public: |
| static SkDilateImageFilter* Create(int radiusX, int radiusY, |
| SkImageFilter* input = NULL, |
| const CropRect* cropRect = NULL) { |
| return SkNEW_ARGS(SkDilateImageFilter, (radiusX, radiusY, input, cropRect)); |
| } |
| |
| virtual bool onFilterImage(Proxy*, const SkBitmap& src, const Context&, |
| SkBitmap* result, SkIPoint* offset) const SK_OVERRIDE; |
| #if SK_SUPPORT_GPU |
| virtual bool filterImageGPU(Proxy* proxy, const SkBitmap& src, const Context&, |
| SkBitmap* result, SkIPoint* offset) const SK_OVERRIDE; |
| #endif |
| |
| SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkDilateImageFilter) |
| |
| protected: |
| SkDilateImageFilter(SkReadBuffer& buffer) : INHERITED(buffer) {} |
| |
| #ifdef SK_SUPPORT_LEGACY_PUBLICEFFECTCONSTRUCTORS |
| public: |
| #endif |
| SkDilateImageFilter(int radiusX, int radiusY, |
| SkImageFilter* input = NULL, |
| const CropRect* cropRect = NULL) |
| : INHERITED(radiusX, radiusY, input, cropRect) {} |
| |
| private: |
| typedef SkMorphologyImageFilter INHERITED; |
| }; |
| |
| class SK_API SkErodeImageFilter : public SkMorphologyImageFilter { |
| public: |
| static SkErodeImageFilter* Create(int radiusX, int radiusY, |
| SkImageFilter* input = NULL, |
| const CropRect* cropRect = NULL) { |
| return SkNEW_ARGS(SkErodeImageFilter, (radiusX, radiusY, input, cropRect)); |
| } |
| |
| virtual bool onFilterImage(Proxy*, const SkBitmap& src, const Context&, |
| SkBitmap* result, SkIPoint* offset) const SK_OVERRIDE; |
| #if SK_SUPPORT_GPU |
| virtual bool filterImageGPU(Proxy* proxy, const SkBitmap& src, const Context&, |
| SkBitmap* result, SkIPoint* offset) const SK_OVERRIDE; |
| #endif |
| |
| SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkErodeImageFilter) |
| |
| protected: |
| SkErodeImageFilter(SkReadBuffer& buffer) : INHERITED(buffer) {} |
| |
| #ifdef SK_SUPPORT_LEGACY_PUBLICEFFECTCONSTRUCTORS |
| public: |
| #endif |
| SkErodeImageFilter(int radiusX, int radiusY, |
| SkImageFilter* input = NULL, |
| const CropRect* cropRect = NULL) |
| : INHERITED(radiusX, radiusY, input, cropRect) {} |
| |
| private: |
| typedef SkMorphologyImageFilter INHERITED; |
| }; |
| |
| #endif |