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| 1 /* | |
| 2 * Copyright 2014 The Android Open Source Project | |
| 3 * | |
| 4 * Use of this source code is governed by a BSD-style license that can be | |
| 5 * found in the LICENSE file. | |
| 6 */ | |
| 7 | |
| 8 #ifndef SkMatrixImageFilter_DEFINED | |
| 9 #define SkMatrixImageFilter_DEFINED | |
| 10 | |
| 11 #include "SkImageFilter.h" | |
| 12 #include "SkScalar.h" | |
| 13 #include "SkSize.h" | |
| 14 #include "SkPoint.h" | |
| 15 #include "SkPaint.h" | |
| 16 | |
| 17 /*! \class SkMatrixImageFilter | |
| 18 Matrix transformation image filter. This filter draws its source | |
| 19 input transformed by the given matrix. | |
| 20 */ | |
| 21 | |
| 22 class SK_API SkMatrixImageFilter : public SkImageFilter { | |
| 23 public: | |
| 24 /** Construct a 2D transformation image filter. | |
| 25 * @param transform The matrix to apply when drawing the src bitmap | |
| 26 * @param filterLevel The quality of filtering to apply when scaling. | |
| 27 * @param input The input image filter. If NULL, the src bitmap | |
| 28 * passed to filterImage() is used instead. | |
| 29 */ | |
| 30 | |
| 31 static SkMatrixImageFilter* Create(const SkMatrix& transform, | |
| 32 SkFilterQuality, | |
| 33 SkImageFilter* input = NULL); | |
| 34 #ifdef SK_SUPPORT_LEGACY_FILTERLEVEL_ENUM | |
| 35 static SkMatrixImageFilter* Create(const SkMatrix& transform, | |
| 36 SkPaint::FilterLevel level, | |
| 37 SkImageFilter* input = NULL) { | |
| 38 return Create(transform, SkFilterQuality(level), input); | |
| 39 } | |
| 40 #endif | |
| 41 virtual ~SkMatrixImageFilter(); | |
| 42 | |
| 43 void computeFastBounds(const SkRect&, SkRect*) const SK_OVERRIDE; | |
| 44 | |
| 45 SK_TO_STRING_OVERRIDE() | |
| 46 SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkMatrixImageFilter) | |
| 47 | |
| 48 protected: | |
| 49 SkMatrixImageFilter(const SkMatrix& transform, | |
| 50 SkFilterQuality, | |
| 51 SkImageFilter* input); | |
| 52 void flatten(SkWriteBuffer&) const SK_OVERRIDE; | |
| 53 | |
| 54 virtual bool onFilterImage(Proxy*, const SkBitmap& src, const Context&, | |
| 55 SkBitmap* result, SkIPoint* loc) const SK_OVERRID
E; | |
| 56 virtual bool onFilterBounds(const SkIRect& src, const SkMatrix&, | |
| 57 SkIRect* dst) const SK_OVERRIDE; | |
| 58 | |
| 59 private: | |
| 60 SkMatrix fTransform; | |
| 61 SkFilterQuality fFilterQuality; | |
| 62 typedef SkImageFilter INHERITED; | |
| 63 }; | |
| 64 | |
| 65 #endif | |
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Chromium Code Reviews
Issue 1011273003:
Move SkMatrixImageFilter into core, and add a factory fn for it. (Closed)
Base URL: https://skia.googlesource.com/skia.git@master