diff options
Diffstat (limited to 'include/effects')
| -rw-r--r-- | include/effects/SkMatrixConvolutionImageFilter.h | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/include/effects/SkMatrixConvolutionImageFilter.h b/include/effects/SkMatrixConvolutionImageFilter.h index 035b863a55..a938fd0b26 100644 --- a/include/effects/SkMatrixConvolutionImageFilter.h +++ b/include/effects/SkMatrixConvolutionImageFilter.h @@ -42,11 +42,14 @@ public: target of {1, 1}). @param tileMode How accesses outside the image are treated. (@see TileMode). + @param convolveAlpha If true, all channels are convolved. If false, + only the RGB channels are convolved, and + alpha is copied from the source image. @param input The input image filter. If NULL, the src bitmap passed to filterImage() is used instead. */ - SkMatrixConvolutionImageFilter(const SkISize& kernelSize, const SkScalar* kernel, SkScalar gain, SkScalar bias, const SkIPoint& target, TileMode tileMode, SkImageFilter* input = NULL); + SkMatrixConvolutionImageFilter(const SkISize& kernelSize, const SkScalar* kernel, SkScalar gain, SkScalar bias, const SkIPoint& target, TileMode tileMode, bool convolveAlpha, SkImageFilter* input = NULL); virtual ~SkMatrixConvolutionImageFilter(); SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkMatrixConvolutionImageFilter) @@ -65,8 +68,11 @@ private: SkScalar fBias; SkIPoint fTarget; TileMode fTileMode; + bool fConvolveAlpha; typedef SkSingleInputImageFilter INHERITED; + template <class PixelFetcher, bool convolveAlpha> + void filterPixels(const SkBitmap& src, SkBitmap* result, const SkIRect& rect); template <class PixelFetcher> void filterPixels(const SkBitmap& src, SkBitmap* result, const SkIRect& rect); void filterInteriorPixels(const SkBitmap& src, SkBitmap* result, const SkIRect& rect); |