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1 /* | 1 /* |
2 * Copyright 2012 Google Inc. | 2 * Copyright 2012 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 SkImage_Base_DEFINED | 8 #ifndef SkImage_Base_DEFINED |
9 #define SkImage_Base_DEFINED | 9 #define SkImage_Base_DEFINED |
10 | 10 |
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24 | 24 |
25 class SkImage_Base : public SkImage { | 25 class SkImage_Base : public SkImage { |
26 public: | 26 public: |
27 SkImage_Base(int width, int height, uint32_t uniqueID); | 27 SkImage_Base(int width, int height, uint32_t uniqueID); |
28 virtual ~SkImage_Base(); | 28 virtual ~SkImage_Base(); |
29 | 29 |
30 // User: returns image info for this SkImage. | 30 // User: returns image info for this SkImage. |
31 // Implementors: if you can not return the value, return an invalid ImageInf
o with w=0 & h=0 | 31 // Implementors: if you can not return the value, return an invalid ImageInf
o with w=0 & h=0 |
32 // & unknown color space. | 32 // & unknown color space. |
33 virtual SkImageInfo onImageInfo() const = 0; | 33 virtual SkImageInfo onImageInfo() const = 0; |
| 34 virtual SkAlphaType onAlphaType() const = 0; |
34 | 35 |
35 virtual bool onPeekPixels(SkPixmap*) const { return false; } | 36 virtual bool onPeekPixels(SkPixmap*) const { return false; } |
36 | 37 |
37 virtual const SkBitmap* onPeekBitmap() const { return nullptr; } | 38 virtual const SkBitmap* onPeekBitmap() const { return nullptr; } |
38 | 39 |
39 // Default impl calls onDraw | 40 // Default impl calls onDraw |
40 virtual bool onReadPixels(const SkImageInfo& dstInfo, void* dstPixels, size_
t dstRowBytes, | 41 virtual bool onReadPixels(const SkImageInfo& dstInfo, void* dstPixels, size_
t dstRowBytes, |
41 int srcX, int srcY, CachingHint) const; | 42 int srcX, int srcY, CachingHint) const; |
42 | 43 |
43 virtual GrTexture* peekTexture() const { return nullptr; } | 44 virtual GrTexture* peekTexture() const { return nullptr; } |
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87 | 88 |
88 static inline SkImage_Base* as_IB(const sk_sp<SkImage>& image) { | 89 static inline SkImage_Base* as_IB(const sk_sp<SkImage>& image) { |
89 return static_cast<SkImage_Base*>(image.get()); | 90 return static_cast<SkImage_Base*>(image.get()); |
90 } | 91 } |
91 | 92 |
92 static inline const SkImage_Base* as_IB(const SkImage* image) { | 93 static inline const SkImage_Base* as_IB(const SkImage* image) { |
93 return static_cast<const SkImage_Base*>(image); | 94 return static_cast<const SkImage_Base*>(image); |
94 } | 95 } |
95 | 96 |
96 #endif | 97 #endif |
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