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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(const SkPicture*, TileMode, TileMode, const S
kMatrix*, | 24 static SkPictureShader* Create(const SkPicture*, TileMode, TileMode, const S
kMatrix*, |
25 const SkRect*); | 25 const SkRect*); |
| 26 virtual ~SkPictureShader(); |
26 | 27 |
27 size_t contextSize() const SK_OVERRIDE; | 28 size_t contextSize() const SK_OVERRIDE; |
28 | 29 |
29 SK_TO_STRING_OVERRIDE() | 30 SK_TO_STRING_OVERRIDE() |
30 SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkPictureShader) | 31 SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkPictureShader) |
31 | 32 |
32 bool asFragmentProcessor(GrContext*, const SkPaint&, const SkMatrix& viewM,
const SkMatrix*, | 33 bool asFragmentProcessor(GrContext*, const SkPaint&, const SkMatrix& viewM,
const SkMatrix*, |
33 GrColor*, GrFragmentProcessor**) const SK_OVERRIDE; | 34 GrColor*, GrFragmentProcessor**) const SK_OVERRIDE; |
34 | 35 |
35 protected: | 36 protected: |
36 SkPictureShader(SkReadBuffer&); | 37 SkPictureShader(SkReadBuffer&); |
37 void flatten(SkWriteBuffer&) const SK_OVERRIDE; | 38 void flatten(SkWriteBuffer&) const SK_OVERRIDE; |
38 Context* onCreateContext(const ContextRec&, void* storage) const SK_OVERRIDE
; | 39 Context* onCreateContext(const ContextRec&, void* storage) const SK_OVERRIDE
; |
39 | 40 |
40 private: | 41 private: |
41 SkPictureShader(const SkPicture*, TileMode, TileMode, const SkMatrix*, const
SkRect*); | 42 SkPictureShader(const SkPicture*, TileMode, TileMode, const SkMatrix*, const
SkRect*); |
42 | 43 |
43 SkShader* refBitmapShader(const SkMatrix&, const SkMatrix* localMatrix) cons
t; | 44 SkShader* refBitmapShader(const SkMatrix&, const SkMatrix* localMatrix) cons
t; |
44 | 45 |
45 SkAutoTUnref<const SkPicture> fPicture; | 46 const SkPicture* fPicture; |
46 SkRect fTile; | 47 SkRect fTile; |
47 TileMode fTmx, fTmy; | 48 TileMode fTmx, fTmy; |
48 | 49 |
49 class PictureShaderContext : public SkShader::Context { | 50 class PictureShaderContext : public SkShader::Context { |
50 public: | 51 public: |
51 static Context* Create(void* storage, const SkPictureShader&, const Cont
extRec&, | 52 static Context* Create(void* storage, const SkPictureShader&, const Cont
extRec&, |
52 SkShader* bitmapShader); | 53 SkShader* bitmapShader); |
53 | 54 |
54 virtual ~PictureShaderContext(); | 55 virtual ~PictureShaderContext(); |
55 | 56 |
56 uint32_t getFlags() const SK_OVERRIDE; | 57 uint32_t getFlags() const SK_OVERRIDE; |
57 | 58 |
58 ShadeProc asAShadeProc(void** ctx) SK_OVERRIDE; | 59 ShadeProc asAShadeProc(void** ctx) SK_OVERRIDE; |
59 void shadeSpan(int x, int y, SkPMColor dstC[], int count) SK_OVERRIDE; | 60 void shadeSpan(int x, int y, SkPMColor dstC[], int count) SK_OVERRIDE; |
60 void shadeSpan16(int x, int y, uint16_t dstC[], int count) SK_OVERRIDE; | 61 void shadeSpan16(int x, int y, uint16_t dstC[], int count) SK_OVERRIDE; |
61 | 62 |
62 private: | 63 private: |
63 PictureShaderContext(const SkPictureShader&, const ContextRec&, SkShader
* bitmapShader); | 64 PictureShaderContext(const SkPictureShader&, const ContextRec&, SkShader
* bitmapShader); |
64 | 65 |
65 SkAutoTUnref<SkShader> fBitmapShader; | 66 SkAutoTUnref<SkShader> fBitmapShader; |
66 SkShader::Context* fBitmapShaderContext; | 67 SkShader::Context* fBitmapShaderContext; |
67 void* fBitmapShaderContextStorage; | 68 void* fBitmapShaderContextStorage; |
68 | 69 |
69 typedef SkShader::Context INHERITED; | 70 typedef SkShader::Context INHERITED; |
70 }; | 71 }; |
71 | 72 |
72 typedef SkShader INHERITED; | 73 typedef SkShader INHERITED; |
73 }; | 74 }; |
74 | 75 |
75 #endif // SkPictureShader_DEFINED | 76 #endif // SkPictureShader_DEFINED |
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