sugoi@google.com | 781cc76 | 2013-01-15 15:40:19 +0000 | [diff] [blame] | 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, |
commit-bot@chromium.org | cac5fd5 | 2014-03-10 10:51:58 +0000 | [diff] [blame] | 21 | kA_ChannelSelectorType |
sugoi@google.com | 781cc76 | 2013-01-15 15:40:19 +0000 | [diff] [blame] | 22 | }; |
| 23 | |
sugoi@google.com | 781cc76 | 2013-01-15 15:40:19 +0000 | [diff] [blame] | 24 | ~SkDisplacementMapEffect(); |
| 25 | |
commit-bot@chromium.org | cac5fd5 | 2014-03-10 10:51:58 +0000 | [diff] [blame] | 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 | |
sugoi@google.com | 781cc76 | 2013-01-15 15:40:19 +0000 | [diff] [blame] | 35 | SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkDisplacementMapEffect) |
| 36 | |
| 37 | virtual bool onFilterImage(Proxy* proxy, |
| 38 | const SkBitmap& src, |
senorblanco@chromium.org | 4cb543d | 2014-03-14 15:44:01 +0000 | [diff] [blame^] | 39 | const Context& ctx, |
sugoi@google.com | 781cc76 | 2013-01-15 15:40:19 +0000 | [diff] [blame] | 40 | SkBitmap* dst, |
commit-bot@chromium.org | ae761f7 | 2014-02-05 22:32:02 +0000 | [diff] [blame] | 41 | SkIPoint* offset) const SK_OVERRIDE; |
senorblanco@chromium.org | 336d1d7 | 2014-01-27 21:03:17 +0000 | [diff] [blame] | 42 | virtual void computeFastBounds(const SkRect& src, SkRect* dst) const SK_OVERRIDE; |
| 43 | |
senorblanco@chromium.org | c4b12f1 | 2014-02-05 17:51:22 +0000 | [diff] [blame] | 44 | virtual bool onFilterBounds(const SkIRect& src, const SkMatrix&, |
| 45 | SkIRect* dst) const SK_OVERRIDE; |
| 46 | |
sugoi@google.com | 781cc76 | 2013-01-15 15:40:19 +0000 | [diff] [blame] | 47 | #if SK_SUPPORT_GPU |
| 48 | virtual bool canFilterImageGPU() const SK_OVERRIDE { return true; } |
senorblanco@chromium.org | 4cb543d | 2014-03-14 15:44:01 +0000 | [diff] [blame^] | 49 | virtual bool filterImageGPU(Proxy* proxy, const SkBitmap& src, const Context& ctx, |
commit-bot@chromium.org | ae761f7 | 2014-02-05 22:32:02 +0000 | [diff] [blame] | 50 | SkBitmap* result, SkIPoint* offset) const SK_OVERRIDE; |
sugoi@google.com | 781cc76 | 2013-01-15 15:40:19 +0000 | [diff] [blame] | 51 | #endif |
| 52 | |
| 53 | protected: |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 54 | explicit SkDisplacementMapEffect(SkReadBuffer& buffer); |
| 55 | virtual void flatten(SkWriteBuffer&) const SK_OVERRIDE; |
sugoi@google.com | 781cc76 | 2013-01-15 15:40:19 +0000 | [diff] [blame] | 56 | |
commit-bot@chromium.org | cac5fd5 | 2014-03-10 10:51:58 +0000 | [diff] [blame] | 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 | |
sugoi@google.com | 781cc76 | 2013-01-15 15:40:19 +0000 | [diff] [blame] | 66 | private: |
| 67 | ChannelSelectorType fXChannelSelector; |
| 68 | ChannelSelectorType fYChannelSelector; |
| 69 | SkScalar fScale; |
| 70 | typedef SkImageFilter INHERITED; |
senorblanco@chromium.org | 336d1d7 | 2014-01-27 21:03:17 +0000 | [diff] [blame] | 71 | const SkImageFilter* getDisplacementInput() const { return getInput(0); } |
| 72 | const SkImageFilter* getColorInput() const { return getInput(1); } |
sugoi@google.com | 781cc76 | 2013-01-15 15:40:19 +0000 | [diff] [blame] | 73 | }; |
| 74 | |
| 75 | #endif |