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1 /* | 1 /* |
2 * Copyright 2013 Google Inc. | 2 * Copyright 2013 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 SkImageInfo_DEFINED | 8 #ifndef SkImageInfo_DEFINED |
9 #define SkImageInfo_DEFINED | 9 #define SkImageInfo_DEFINED |
10 | 10 |
11 #include "SkMath.h" | 11 #include "SkMath.h" |
| 12 #include "SkRect.h" |
12 #include "SkSize.h" | 13 #include "SkSize.h" |
13 | 14 |
| 15 class SkReadBuffer; |
14 class SkWriteBuffer; | 16 class SkWriteBuffer; |
15 class SkReadBuffer; | |
16 | 17 |
17 /** | 18 /** |
18 * Describes how to interpret the alpha compoent of a pixel. | 19 * Describes how to interpret the alpha compoent of a pixel. |
19 */ | 20 */ |
20 enum SkAlphaType { | 21 enum SkAlphaType { |
21 /** | 22 /** |
22 * All pixels should be treated as opaque, regardless of the value stored | 23 * All pixels should be treated as opaque, regardless of the value stored |
23 * in their alpha field. Used for legacy images that wrote 0 or garbarge | 24 * in their alpha field. Used for legacy images that wrote 0 or garbarge |
24 * in their alpha field, but intended the RGB to be treated as opaque. | 25 * in their alpha field, but intended the RGB to be treated as opaque. |
25 */ | 26 */ |
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200 int height() const { return fHeight; } | 201 int height() const { return fHeight; } |
201 SkColorType colorType() const { return fColorType; } | 202 SkColorType colorType() const { return fColorType; } |
202 SkAlphaType alphaType() const { return fAlphaType; } | 203 SkAlphaType alphaType() const { return fAlphaType; } |
203 | 204 |
204 bool isEmpty() const { return fWidth <= 0 || fHeight <= 0; } | 205 bool isEmpty() const { return fWidth <= 0 || fHeight <= 0; } |
205 | 206 |
206 bool isOpaque() const { | 207 bool isOpaque() const { |
207 return SkAlphaTypeIsOpaque(fAlphaType); | 208 return SkAlphaTypeIsOpaque(fAlphaType); |
208 } | 209 } |
209 | 210 |
| 211 SkIRect bounds() const { return SkIRect::MakeWH(fWidth, fHeight); } |
210 SkISize dimensions() const { return SkISize::Make(fWidth, fHeight); } | 212 SkISize dimensions() const { return SkISize::Make(fWidth, fHeight); } |
211 | 213 |
212 /** | 214 /** |
213 * Return a new ImageInfo with the same colortype and alphatype as this inf
o, | 215 * Return a new ImageInfo with the same colortype and alphatype as this inf
o, |
214 * but with the specified width and height. | 216 * but with the specified width and height. |
215 */ | 217 */ |
216 SkImageInfo makeWH(int newWidth, int newHeight) const { | 218 SkImageInfo makeWH(int newWidth, int newHeight) const { |
217 return SkImageInfo::Make(newWidth, newHeight, fColorType, fAlphaType); | 219 return SkImageInfo::Make(newWidth, newHeight, fColorType, fAlphaType); |
218 } | 220 } |
219 | 221 |
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278 private: | 280 private: |
279 SkImageInfo(int width, int height, SkColorType ct, SkAlphaType at) | 281 SkImageInfo(int width, int height, SkColorType ct, SkAlphaType at) |
280 : fWidth(width) | 282 : fWidth(width) |
281 , fHeight(height) | 283 , fHeight(height) |
282 , fColorType(ct) | 284 , fColorType(ct) |
283 , fAlphaType(at) | 285 , fAlphaType(at) |
284 {} | 286 {} |
285 }; | 287 }; |
286 | 288 |
287 #endif | 289 #endif |
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