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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_DEFINED | 8 #ifndef SkImage_DEFINED |
9 #define SkImage_DEFINED | 9 #define SkImage_DEFINED |
10 | 10 |
11 #include "SkRefCnt.h" | 11 #include "SkRefCnt.h" |
12 #include "SkScalar.h" | 12 #include "SkScalar.h" |
13 | 13 |
14 class SkData; | 14 class SkData; |
15 class SkCanvas; | 15 class SkCanvas; |
16 class SkPaint; | 16 class SkPaint; |
17 class SkShader; | 17 class SkShader; |
18 class GrContext; | 18 class GrContext; |
19 class GrTexture; | 19 class GrTexture; |
20 | 20 |
21 // need for TileMode | 21 // need for TileMode |
22 #include "SkShader.h" | 22 #include "SkShader.h" |
23 | 23 |
24 ////// EXPERIMENTAL | |
25 | |
26 /** | 24 /** |
27 * SkImage is an abstraction for drawing a rectagle of pixels, though the | 25 * SkImage is an abstraction for drawing a rectagle of pixels, though the |
28 * particular type of image could be actually storing its data on the GPU, or | 26 * particular type of image could be actually storing its data on the GPU, or |
29 * as drawing commands (picture or PDF or otherwise), ready to be played back | 27 * as drawing commands (picture or PDF or otherwise), ready to be played back |
30 * into another canvas. | 28 * into another canvas. |
31 * | 29 * |
32 * The content of SkImage is always immutable, though the actual storage may | 30 * The content of SkImage is always immutable, though the actual storage may |
33 * change, if for example that image can be re-created via encoded data or | 31 * change, if for example that image can be re-created via encoded data or |
34 * other means. | 32 * other means. |
35 */ | 33 */ |
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77 * does not affect the reference count of the GrTexture object. | 75 * does not affect the reference count of the GrTexture object. |
78 * Will return NULL if the image does not use a texture. | 76 * Will return NULL if the image does not use a texture. |
79 */ | 77 */ |
80 GrTexture* getTexture(); | 78 GrTexture* getTexture(); |
81 | 79 |
82 SkShader* newShaderClamp() const; | 80 SkShader* newShaderClamp() const; |
83 SkShader* newShader(SkShader::TileMode, SkShader::TileMode) const; | 81 SkShader* newShader(SkShader::TileMode, SkShader::TileMode) const; |
84 | 82 |
85 void draw(SkCanvas*, SkScalar x, SkScalar y, const SkPaint*); | 83 void draw(SkCanvas*, SkScalar x, SkScalar y, const SkPaint*); |
86 | 84 |
| 85 enum EncodeType { |
| 86 kBMP_EncodeType, |
| 87 kGIF_EncodeType, |
| 88 kICO_EncodeType, |
| 89 kJPEG_EncodeType, |
| 90 kPNG_EncodeType, |
| 91 kWBMP_EncodeType, |
| 92 kWEBP_EncodeType, |
| 93 }; |
| 94 /** |
| 95 * Encode the image's pixels and return the result as a new SkData, which |
| 96 * the caller must manage (i.e. call unref() when they are done). |
| 97 * |
| 98 * If the image type cannot be encoded, or the requested encoder type is |
| 99 * not supported, this will return NULL. |
| 100 */ |
| 101 SkData* encode(EncodeType t = kPNG_EncodeType, int quality = 80) const; |
| 102 |
87 protected: | 103 protected: |
88 SkImage(int width, int height) : | 104 SkImage(int width, int height) : |
89 fWidth(width), | 105 fWidth(width), |
90 fHeight(height), | 106 fHeight(height), |
91 fUniqueID(NextUniqueID()) { | 107 fUniqueID(NextUniqueID()) { |
92 | 108 |
93 SkASSERT(width >= 0); | 109 SkASSERT(width >= 0); |
94 SkASSERT(height >= 0); | 110 SkASSERT(height >= 0); |
95 } | 111 } |
96 | 112 |
97 private: | 113 private: |
98 const int fWidth; | 114 const int fWidth; |
99 const int fHeight; | 115 const int fHeight; |
100 const uint32_t fUniqueID; | 116 const uint32_t fUniqueID; |
101 | 117 |
102 static uint32_t NextUniqueID(); | 118 static uint32_t NextUniqueID(); |
103 | 119 |
104 typedef SkRefCnt INHERITED; | 120 typedef SkRefCnt INHERITED; |
105 }; | 121 }; |
106 | 122 |
107 #endif | 123 #endif |
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