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comparison: gfx/skia/trunk/include/effects/SkDisplacementMapEffect.h
gfx/skia/trunk/include/effects/SkDisplacementMapEffect.h
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
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| -1:000000000000 | 0:cdc38a017829 |
|---|---|
| 1 /* | |
| 2 * Copyright 2013 Google Inc. | |
| 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 SkDisplacementMapEffect_DEFINED | |
| 9 #define SkDisplacementMapEffect_DEFINED | |
| 10 | |
| 11 #include "SkImageFilter.h" | |
| 12 #include "SkBitmap.h" | |
| 13 | |
| 14 class SK_API SkDisplacementMapEffect : public SkImageFilter { | |
| 15 public: | |
| 16 enum ChannelSelectorType { | |
| 17 kUnknown_ChannelSelectorType, | |
| 18 kR_ChannelSelectorType, | |
| 19 kG_ChannelSelectorType, | |
| 20 kB_ChannelSelectorType, | |
| 21 kA_ChannelSelectorType | |
| 22 }; | |
| 23 | |
| 24 ~SkDisplacementMapEffect(); | |
| 25 | |
| 26 static SkDisplacementMapEffect* Create(ChannelSelectorType xChannelSelector, | |
| 27 ChannelSelectorType yChannelSelector, | |
| 28 SkScalar scale, SkImageFilter* displacement, | |
| 29 SkImageFilter* color = NULL, | |
| 30 const CropRect* cropRect = NULL) { | |
| 31 return SkNEW_ARGS(SkDisplacementMapEffect, (xChannelSelector, yChannelSelector, scale, | |
| 32 displacement, color, cropRect)); | |
| 33 } | |
| 34 | |
| 35 SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkDisplacementMapEffect) | |
| 36 | |
| 37 virtual bool onFilterImage(Proxy* proxy, | |
| 38 const SkBitmap& src, | |
| 39 const Context& ctx, | |
| 40 SkBitmap* dst, | |
| 41 SkIPoint* offset) const SK_OVERRIDE; | |
| 42 virtual void computeFastBounds(const SkRect& src, SkRect* dst) const SK_OVERRIDE; | |
| 43 | |
| 44 virtual bool onFilterBounds(const SkIRect& src, const SkMatrix&, | |
| 45 SkIRect* dst) const SK_OVERRIDE; | |
| 46 | |
| 47 #if SK_SUPPORT_GPU | |
| 48 virtual bool canFilterImageGPU() const SK_OVERRIDE { return true; } | |
| 49 virtual bool filterImageGPU(Proxy* proxy, const SkBitmap& src, const Context& ctx, | |
| 50 SkBitmap* result, SkIPoint* offset) const SK_OVERRIDE; | |
| 51 #endif | |
| 52 | |
| 53 protected: | |
| 54 explicit SkDisplacementMapEffect(SkReadBuffer& buffer); | |
| 55 virtual void flatten(SkWriteBuffer&) const SK_OVERRIDE; | |
| 56 | |
| 57 #ifdef SK_SUPPORT_LEGACY_PUBLICEFFECTCONSTRUCTORS | |
| 58 public: | |
| 59 #endif | |
| 60 SkDisplacementMapEffect(ChannelSelectorType xChannelSelector, | |
| 61 ChannelSelectorType yChannelSelector, | |
| 62 SkScalar scale, SkImageFilter* displacement, | |
| 63 SkImageFilter* color = NULL, | |
| 64 const CropRect* cropRect = NULL); | |
| 65 | |
| 66 private: | |
| 67 ChannelSelectorType fXChannelSelector; | |
| 68 ChannelSelectorType fYChannelSelector; | |
| 69 SkScalar fScale; | |
| 70 typedef SkImageFilter INHERITED; | |
| 71 const SkImageFilter* getDisplacementInput() const { return getInput(0); } | |
| 72 const SkImageFilter* getColorInput() const { return getInput(1); } | |
| 73 }; | |
| 74 | |
| 75 #endif |
