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1 /* | 1 /* |
2 * Copyright 2013 Google Inc. | 2 * Copyright 2013 Google Inc. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
6 */ | 6 */ |
7 | 7 |
8 #ifndef SkDisplacementMapEffect_DEFINED | 8 #ifndef SkDisplacementMapEffect_DEFINED |
9 #define SkDisplacementMapEffect_DEFINED | 9 #define SkDisplacementMapEffect_DEFINED |
10 | 10 |
11 #include "SkImageFilter.h" | 11 #include "SkImageFilter.h" |
12 #include "SkBitmap.h" | 12 #include "SkBitmap.h" |
13 | 13 |
14 class SK_API SkDisplacementMapEffect : public SkImageFilter { | 14 class SK_API SkDisplacementMapEffect : public SkImageFilter { |
15 public: | 15 public: |
16 enum ChannelSelectorType { | 16 enum ChannelSelectorType { |
17 kUnknown_ChannelSelectorType, | 17 kUnknown_ChannelSelectorType, |
18 kR_ChannelSelectorType, | 18 kR_ChannelSelectorType, |
19 kG_ChannelSelectorType, | 19 kG_ChannelSelectorType, |
20 kB_ChannelSelectorType, | 20 kB_ChannelSelectorType, |
21 kA_ChannelSelectorType | 21 kA_ChannelSelectorType |
22 }; | 22 }; |
23 | 23 |
24 ~SkDisplacementMapEffect(); | 24 ~SkDisplacementMapEffect(); |
25 | 25 |
26 static SkDisplacementMapEffect* Create(ChannelSelectorType xChannelSelector, | 26 static SkDisplacementMapEffect* Create(ChannelSelectorType xChannelSelector, |
27 ChannelSelectorType yChannelSelector, | 27 ChannelSelectorType yChannelSelector, |
28 SkScalar scale, SkImageFilter* displa
cement, | 28 SkScalar scale, SkImageFilter* displa
cement, |
29 SkImageFilter* color = NULL, | 29 SkImageFilter* color = NULL, |
30 const CropRect* cropRect = NULL, | 30 const CropRect* cropRect = NULL); |
31 uint32_t uniqueID = 0); | |
32 | 31 |
33 SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkDisplacementMapEffect) | 32 SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkDisplacementMapEffect) |
34 | 33 |
35 virtual bool onFilterImage(Proxy* proxy, | 34 virtual bool onFilterImage(Proxy* proxy, |
36 const SkBitmap& src, | 35 const SkBitmap& src, |
37 const Context& ctx, | 36 const Context& ctx, |
38 SkBitmap* dst, | 37 SkBitmap* dst, |
39 SkIPoint* offset) const SK_OVERRIDE; | 38 SkIPoint* offset) const SK_OVERRIDE; |
40 void computeFastBounds(const SkRect& src, SkRect* dst) const SK_OVERRIDE; | 39 void computeFastBounds(const SkRect& src, SkRect* dst) const SK_OVERRIDE; |
41 | 40 |
42 virtual bool onFilterBounds(const SkIRect& src, const SkMatrix&, | 41 virtual bool onFilterBounds(const SkIRect& src, const SkMatrix&, |
43 SkIRect* dst) const SK_OVERRIDE; | 42 SkIRect* dst) const SK_OVERRIDE; |
44 | 43 |
45 #if SK_SUPPORT_GPU | 44 #if SK_SUPPORT_GPU |
46 bool canFilterImageGPU() const SK_OVERRIDE { return true; } | 45 bool canFilterImageGPU() const SK_OVERRIDE { return true; } |
47 virtual bool filterImageGPU(Proxy* proxy, const SkBitmap& src, const Context
& ctx, | 46 virtual bool filterImageGPU(Proxy* proxy, const SkBitmap& src, const Context
& ctx, |
48 SkBitmap* result, SkIPoint* offset) const SK_OVE
RRIDE; | 47 SkBitmap* result, SkIPoint* offset) const SK_OVE
RRIDE; |
49 #endif | 48 #endif |
50 | 49 |
51 SK_TO_STRING_OVERRIDE() | 50 SK_TO_STRING_OVERRIDE() |
52 | 51 |
53 protected: | 52 protected: |
54 SkDisplacementMapEffect(ChannelSelectorType xChannelSelector, | 53 SkDisplacementMapEffect(ChannelSelectorType xChannelSelector, |
55 ChannelSelectorType yChannelSelector, | 54 ChannelSelectorType yChannelSelector, |
56 SkScalar scale, SkImageFilter* inputs[2], | 55 SkScalar scale, SkImageFilter* inputs[2], |
57 const CropRect* cropRect, | 56 const CropRect* cropRect); |
58 uint32_t uniqueID); | |
59 void flatten(SkWriteBuffer&) const SK_OVERRIDE; | 57 void flatten(SkWriteBuffer&) const SK_OVERRIDE; |
60 | 58 |
61 private: | 59 private: |
62 ChannelSelectorType fXChannelSelector; | 60 ChannelSelectorType fXChannelSelector; |
63 ChannelSelectorType fYChannelSelector; | 61 ChannelSelectorType fYChannelSelector; |
64 SkScalar fScale; | 62 SkScalar fScale; |
65 typedef SkImageFilter INHERITED; | 63 typedef SkImageFilter INHERITED; |
66 const SkImageFilter* getDisplacementInput() const { return getInput(0); } | 64 const SkImageFilter* getDisplacementInput() const { return getInput(0); } |
67 const SkImageFilter* getColorInput() const { return getInput(1); } | 65 const SkImageFilter* getColorInput() const { return getInput(1); } |
68 }; | 66 }; |
69 | 67 |
70 #endif | 68 #endif |
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