OLD | NEW |
1 /* | 1 /* |
2 * Copyright 2014 Google Inc. | 2 * Copyright 2014 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 SkPictureShader_DEFINED | 8 #ifndef SkPictureShader_DEFINED |
9 #define SkPictureShader_DEFINED | 9 #define SkPictureShader_DEFINED |
10 | 10 |
11 #include "SkShader.h" | 11 #include "SkShader.h" |
12 | 12 |
13 class SkBitmap; | 13 class SkBitmap; |
14 class SkPicture; | 14 class SkPicture; |
15 | 15 |
16 /* | 16 /* |
17 * An SkPictureShader can be used to draw SkPicture-based patterns. | 17 * An SkPictureShader can be used to draw SkPicture-based patterns. |
18 * | 18 * |
19 * The SkPicture is first rendered into a tile, which is then used to shade the
area according | 19 * The SkPicture is first rendered into a tile, which is then used to shade the
area according |
20 * to specified tiling rules. | 20 * to specified tiling rules. |
21 */ | 21 */ |
22 class SkPictureShader : public SkShader { | 22 class SkPictureShader : public SkShader { |
23 public: | 23 public: |
24 static SkPictureShader* Create(SkPicture*, TileMode, TileMode); | 24 static SkPictureShader* Create(SkPicture*, TileMode, TileMode); |
25 virtual ~SkPictureShader(); | 25 virtual ~SkPictureShader(); |
26 | 26 |
27 virtual bool setContext(const SkBitmap&, const SkPaint&, const SkMatrix&) SK
_OVERRIDE; | 27 virtual bool validContext(const SkBitmap&, const SkPaint&, |
28 virtual void endContext() SK_OVERRIDE; | 28 const SkMatrix&, SkMatrix* totalInverse = NULL) co
nst SK_OVERRIDE; |
29 virtual uint32_t getFlags() SK_OVERRIDE; | 29 virtual SkShader::Context* createContext(const SkBitmap& device, const SkPai
nt& paint, |
| 30 const SkMatrix& matrix, void* stora
ge) const |
| 31 SK_OVERRIDE; |
| 32 virtual size_t contextSize() const SK_OVERRIDE; |
30 | 33 |
31 virtual ShadeProc asAShadeProc(void** ctx) SK_OVERRIDE; | 34 class PictureShaderContext : public SkShader::Context { |
32 virtual void shadeSpan(int x, int y, SkPMColor dstC[], int count) SK_OVERRID
E; | 35 public: |
33 virtual void shadeSpan16(int x, int y, uint16_t dstC[], int count) SK_OVERRI
DE; | 36 PictureShaderContext(const SkPictureShader& shader, const SkBitmap& devi
ce, |
| 37 const SkPaint& paint, const SkMatrix& matrix, |
| 38 SkShader* bitmapShader); |
| 39 virtual ~PictureShaderContext(); |
| 40 |
| 41 virtual uint32_t getFlags() const SK_OVERRIDE; |
| 42 |
| 43 virtual ShadeProc asAShadeProc(void** ctx) SK_OVERRIDE; |
| 44 virtual void shadeSpan(int x, int y, SkPMColor dstC[], int count) SK_OVE
RRIDE; |
| 45 virtual void shadeSpan16(int x, int y, uint16_t dstC[], int count) SK_OV
ERRIDE; |
| 46 |
| 47 private: |
| 48 SkAutoTUnref<SkShader> fBitmapShader; |
| 49 SkShader::Context* fBitmapShaderContext; |
| 50 void* fBitmapShaderContextStorage; |
| 51 |
| 52 typedef SkShader::Context INHERITED; |
| 53 }; |
34 | 54 |
35 SK_TO_STRING_OVERRIDE() | 55 SK_TO_STRING_OVERRIDE() |
36 SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkPictureShader) | 56 SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkPictureShader) |
37 | 57 |
38 #if SK_SUPPORT_GPU | 58 #if SK_SUPPORT_GPU |
39 GrEffectRef* asNewEffect(GrContext*, const SkPaint&) const SK_OVERRIDE; | 59 GrEffectRef* asNewEffect(GrContext*, const SkPaint&) const SK_OVERRIDE; |
40 #endif | 60 #endif |
41 | 61 |
42 protected: | 62 protected: |
43 SkPictureShader(SkReadBuffer&); | 63 SkPictureShader(SkReadBuffer&); |
44 virtual void flatten(SkWriteBuffer&) const SK_OVERRIDE; | 64 virtual void flatten(SkWriteBuffer&) const SK_OVERRIDE; |
45 | 65 |
46 private: | 66 private: |
47 SkPictureShader(SkPicture*, TileMode, TileMode); | 67 SkPictureShader(SkPicture*, TileMode, TileMode); |
48 | 68 |
49 bool buildBitmapShader(const SkMatrix&) const; | 69 SkShader* validInternal(const SkBitmap& device, const SkPaint& paint, |
| 70 const SkMatrix& matrix, SkMatrix* totalInverse) cons
t; |
| 71 |
| 72 SkShader* refBitmapShader(const SkMatrix&) const; |
50 | 73 |
51 SkPicture* fPicture; | 74 SkPicture* fPicture; |
52 TileMode fTmx, fTmy; | 75 TileMode fTmx, fTmy; |
53 | 76 |
54 mutable SkAutoTUnref<SkShader> fCachedShader; | 77 mutable SkMutex fCachedBitmapShaderMutex; |
| 78 mutable SkAutoTUnref<SkShader> fCachedBitmapShader; |
55 mutable SkSize fCachedTileScale; | 79 mutable SkSize fCachedTileScale; |
| 80 mutable SkMatrix fCachedLocalMatrix; |
56 | 81 |
57 typedef SkShader INHERITED; | 82 typedef SkShader INHERITED; |
58 }; | 83 }; |
59 | 84 |
60 #endif // SkPictureShader_DEFINED | 85 #endif // SkPictureShader_DEFINED |
OLD | NEW |