epoger@google.com | ec3ed6a | 2011-07-28 14:26:00 +0000 | [diff] [blame] | 1 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 2 | /* |
epoger@google.com | ec3ed6a | 2011-07-28 14:26:00 +0000 | [diff] [blame] | 3 | * Copyright 2006 The Android Open Source Project |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 4 | * |
epoger@google.com | ec3ed6a | 2011-07-28 14:26:00 +0000 | [diff] [blame] | 5 | * Use of this source code is governed by a BSD-style license that can be |
| 6 | * found in the LICENSE file. |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 7 | */ |
| 8 | |
epoger@google.com | ec3ed6a | 2011-07-28 14:26:00 +0000 | [diff] [blame] | 9 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 10 | #ifndef SkLayerRasterizer_DEFINED |
| 11 | #define SkLayerRasterizer_DEFINED |
| 12 | |
| 13 | #include "SkRasterizer.h" |
| 14 | #include "SkDeque.h" |
| 15 | #include "SkScalar.h" |
| 16 | |
| 17 | class SkPaint; |
| 18 | |
tfarina@chromium.org | 6806fe8 | 2012-10-12 14:41:39 +0000 | [diff] [blame] | 19 | class SK_API SkLayerRasterizer : public SkRasterizer { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 20 | public: |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 21 | virtual ~SkLayerRasterizer(); |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 22 | |
commit-bot@chromium.org | f792a1b | 2014-02-26 13:27:37 +0000 | [diff] [blame^] | 23 | class SK_API Builder { |
| 24 | public: |
| 25 | Builder(); |
| 26 | ~Builder(); |
| 27 | |
| 28 | void addLayer(const SkPaint& paint) { |
| 29 | this->addLayer(paint, 0, 0); |
| 30 | } |
| 31 | |
| 32 | /** |
| 33 | * Add a new layer (above any previous layers) to the rasterizer. |
| 34 | * The layer will extract those fields that affect the mask from |
| 35 | * the specified paint, but will not retain a reference to the paint |
| 36 | * object itself, so it may be reused without danger of side-effects. |
| 37 | */ |
| 38 | void addLayer(const SkPaint& paint, SkScalar dx, SkScalar dy); |
| 39 | |
| 40 | /** |
| 41 | * Pass queue of layers on to newly created layer rasterizer and return it. The builder |
| 42 | * cannot be used any more after calling this function. |
| 43 | */ |
| 44 | SkLayerRasterizer* detachRasterizer(); |
| 45 | |
| 46 | private: |
| 47 | SkDeque* fLayers; |
| 48 | }; |
| 49 | |
| 50 | #ifdef SK_SUPPORT_LEGACY_LAYERRASTERIZER_API |
mike@reedtribe.org | 6b919c3 | 2011-04-20 11:17:30 +0000 | [diff] [blame] | 51 | void addLayer(const SkPaint& paint) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 52 | this->addLayer(paint, 0, 0); |
| 53 | } |
| 54 | |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 55 | /** Add a new layer (above any previous layers) to the rasterizer. |
| 56 | The layer will extract those fields that affect the mask from |
| 57 | the specified paint, but will not retain a reference to the paint |
| 58 | object itself, so it may be reused without danger of side-effects. |
| 59 | */ |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 60 | void addLayer(const SkPaint& paint, SkScalar dx, SkScalar dy); |
commit-bot@chromium.org | f792a1b | 2014-02-26 13:27:37 +0000 | [diff] [blame^] | 61 | #endif |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 62 | |
djsollen@google.com | ba28d03 | 2012-03-26 17:57:35 +0000 | [diff] [blame] | 63 | SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkLayerRasterizer) |
reed@google.com | 43e9f20 | 2011-08-09 19:01:50 +0000 | [diff] [blame] | 64 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 65 | protected: |
commit-bot@chromium.org | f792a1b | 2014-02-26 13:27:37 +0000 | [diff] [blame^] | 66 | SkLayerRasterizer(SkDeque* layers); |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 67 | SkLayerRasterizer(SkReadBuffer&); |
| 68 | virtual void flatten(SkWriteBuffer&) const SK_OVERRIDE; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 69 | |
| 70 | // override from SkRasterizer |
| 71 | virtual bool onRasterize(const SkPath& path, const SkMatrix& matrix, |
| 72 | const SkIRect* clipBounds, |
reed@google.com | fdba404 | 2012-12-18 16:57:03 +0000 | [diff] [blame] | 73 | SkMask* mask, SkMask::CreateMode mode) const; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 74 | |
commit-bot@chromium.org | f792a1b | 2014-02-26 13:27:37 +0000 | [diff] [blame^] | 75 | #ifdef SK_SUPPORT_LEGACY_LAYERRASTERIZER_API |
| 76 | public: |
| 77 | #endif |
| 78 | SkLayerRasterizer(); |
| 79 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 80 | private: |
commit-bot@chromium.org | f792a1b | 2014-02-26 13:27:37 +0000 | [diff] [blame^] | 81 | #ifdef SK_SUPPORT_LEGACY_LAYERRASTERIZER_API |
| 82 | SkDeque* fLayers; |
| 83 | #else |
| 84 | const SkDeque* const fLayers; |
| 85 | #endif |
| 86 | |
| 87 | static SkDeque* ReadLayers(SkReadBuffer& buffer); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 88 | |
| 89 | typedef SkRasterizer INHERITED; |
| 90 | }; |
| 91 | |
| 92 | #endif |