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1 | 1 |
2 /* | 2 /* |
3 * Copyright 2010 Google Inc. | 3 * Copyright 2010 Google Inc. |
4 * | 4 * |
5 * Use of this source code is governed by a BSD-style license that can be | 5 * Use of this source code is governed by a BSD-style license that can be |
6 * found in the LICENSE file. | 6 * found in the LICENSE file. |
7 */ | 7 */ |
8 | 8 |
9 | 9 |
10 | 10 |
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27 class GrTextContext; | 27 class GrTextContext; |
28 | 28 |
29 /** | 29 /** |
30 * Subclass of SkBaseDevice, which directs all drawing to the GrGpu owned by th
e | 30 * Subclass of SkBaseDevice, which directs all drawing to the GrGpu owned by th
e |
31 * canvas. | 31 * canvas. |
32 */ | 32 */ |
33 class SK_API SkGpuDevice : public SkBaseDevice { | 33 class SK_API SkGpuDevice : public SkBaseDevice { |
34 public: | 34 public: |
35 enum Flags { | 35 enum Flags { |
36 kNeedClear_Flag = 1 << 0, //!< Surface requires an initial clear | 36 kNeedClear_Flag = 1 << 0, //!< Surface requires an initial clear |
37 kDFFonts_Flag = 1 << 1, //!< Surface should render fonts using signed
distance fields | 37 kCached_Flag = 1 << 1, //!< Surface is cached and needs to be unlock
ed when released |
| 38 kDFFonts_Flag = 1 << 2, //!< Surface should render fonts using signed
distance fields |
38 }; | 39 }; |
39 | 40 |
40 /** | 41 /** |
41 * Creates an SkGpuDevice from a GrSurface. This will fail if the surface is
not a render | 42 * Creates an SkGpuDevice from a GrSurface. This will fail if the surface is
not a render |
42 * target. The caller owns a ref on the returned device. If the surface is c
ached, | 43 * target. The caller owns a ref on the returned device. If the surface is c
ached, |
43 * the kCached_Flag should be specified to make the device responsible for u
nlocking | 44 * the kCached_Flag should be specified to make the device responsible for u
nlocking |
44 * the surface when it is released. | 45 * the surface when it is released. |
45 */ | 46 */ |
46 static SkGpuDevice* Create(GrSurface* surface, const SkSurfaceProps&, unsign
ed flags = 0); | 47 static SkGpuDevice* Create(GrSurface* surface, const SkSurfaceProps&, unsign
ed flags = 0); |
47 | 48 |
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109 virtual void onAttachToCanvas(SkCanvas* canvas) SK_OVERRIDE; | 110 virtual void onAttachToCanvas(SkCanvas* canvas) SK_OVERRIDE; |
110 virtual void onDetachFromCanvas() SK_OVERRIDE; | 111 virtual void onDetachFromCanvas() SK_OVERRIDE; |
111 | 112 |
112 virtual const SkBitmap& onAccessBitmap() SK_OVERRIDE; | 113 virtual const SkBitmap& onAccessBitmap() SK_OVERRIDE; |
113 | 114 |
114 virtual bool canHandleImageFilter(const SkImageFilter*) SK_OVERRIDE; | 115 virtual bool canHandleImageFilter(const SkImageFilter*) SK_OVERRIDE; |
115 virtual bool filterImage(const SkImageFilter*, const SkBitmap&, | 116 virtual bool filterImage(const SkImageFilter*, const SkBitmap&, |
116 const SkImageFilter::Context&, | 117 const SkImageFilter::Context&, |
117 SkBitmap*, SkIPoint*) SK_OVERRIDE; | 118 SkBitmap*, SkIPoint*) SK_OVERRIDE; |
118 | 119 |
| 120 class SkAutoCachedTexture; // used internally |
| 121 |
| 122 |
119 protected: | 123 protected: |
120 virtual bool onReadPixels(const SkImageInfo&, void*, size_t, int, int) SK_OV
ERRIDE; | 124 virtual bool onReadPixels(const SkImageInfo&, void*, size_t, int, int) SK_OV
ERRIDE; |
121 virtual bool onWritePixels(const SkImageInfo&, const void*, size_t, int, int
) SK_OVERRIDE; | 125 virtual bool onWritePixels(const SkImageInfo&, const void*, size_t, int, int
) SK_OVERRIDE; |
122 | 126 |
123 /** PRIVATE / EXPERIMENTAL -- do not call */ | 127 /** PRIVATE / EXPERIMENTAL -- do not call */ |
124 virtual void EXPERIMENTAL_optimize(const SkPicture* picture) SK_OVERRIDE; | 128 virtual void EXPERIMENTAL_optimize(const SkPicture* picture) SK_OVERRIDE; |
125 /** PRIVATE / EXPERIMENTAL -- do not call */ | 129 /** PRIVATE / EXPERIMENTAL -- do not call */ |
126 virtual bool EXPERIMENTAL_drawPicture(SkCanvas* canvas, const SkPicture* pic
ture, | 130 virtual bool EXPERIMENTAL_drawPicture(SkCanvas* canvas, const SkPicture* pic
ture, |
127 const SkMatrix*, const SkPaint*) SK_OV
ERRIDE; | 131 const SkMatrix*, const SkPaint*) SK_OV
ERRIDE; |
128 | 132 |
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197 bool bicubic); | 201 bool bicubic); |
198 | 202 |
199 bool drawDashLine(const SkPoint pts[2], const SkPaint& paint); | 203 bool drawDashLine(const SkPoint pts[2], const SkPaint& paint); |
200 | 204 |
201 static SkPicture::AccelData::Key ComputeAccelDataKey(); | 205 static SkPicture::AccelData::Key ComputeAccelDataKey(); |
202 | 206 |
203 typedef SkBaseDevice INHERITED; | 207 typedef SkBaseDevice INHERITED; |
204 }; | 208 }; |
205 | 209 |
206 #endif | 210 #endif |
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