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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 SkPaintPriv_DEFINED | 8 #ifndef SkPaintPriv_DEFINED |
9 #define SkPaintPriv_DEFINED | 9 #define SkPaintPriv_DEFINED |
10 | 10 |
| 11 class SkBitmap; |
| 12 class SkPaint; |
| 13 |
11 #include "SkTypes.h" | 14 #include "SkTypes.h" |
12 | 15 |
13 class SkBitmap; | |
14 class SkImage; | |
15 class SkPaint; | |
16 | |
17 enum SkPaintBitmapOpacity { | 16 enum SkPaintBitmapOpacity { |
18 // No content replaces the paint's color | 17 // No content replaces the paint's color |
19 kNoBitmap_SkPaintBitmapOpacity = 0, | 18 kNoBitmap_SkPaintBitmapOpacity = 0, |
20 // The color replacement is known to be opaque | 19 // The color replacement is known to be opaque |
21 kOpaque_SkPaintBitmapOpacity = 1, | 20 kOpaque_SkPaintBitmapOpacity = 1, |
22 // We have no information about the color or it is transparent | 21 // We have no information about the color or it is transparent |
23 kUnknown_SkPaintBitmapOpacity = 2 | 22 kUnknown_SkPaintBitmapOpacity = 2 |
24 }; | 23 }; |
25 | 24 |
26 /** Returns true if draw calls that use the paint will completely occlude | 25 /** Returns true if draw calls that use the paint will completely occlude |
27 canvas contents that are covered by the draw. | 26 canvas contents that are covered by the draw. |
28 @param paint The paint to be analyzed, NULL is equivalent to | 27 @param paint The paint to be analyzed, NULL is equivalent to |
29 the default paint. | 28 the default paint. |
30 @param contentType The type of the content that will be drawn, | 29 @param contentType The type of the content that will be drawn, |
31 kNoBitmap_SkPaintBitmapOpacity if there is no content in adition to the
paint. | 30 kNoBitmap_SkPaintBitmapOpacity if there is no content in adition to the
paint. |
32 @return true if paint is opaque | 31 @return true if paint is opaque |
33 */ | 32 */ |
34 bool isPaintOpaque(const SkPaint* paint, SkPaintBitmapOpacity contentType); | 33 bool isPaintOpaque(const SkPaint* paint, SkPaintBitmapOpacity contentType); |
35 | 34 |
36 /** Returns true if draw calls that use the paint will completely occlude | 35 /** Returns true if draw calls that use the paint will completely occlude |
37 canvas contents that are covered by the draw. | 36 canvas contents that are covered by the draw. |
38 @param paint The paint to be analyzed, NULL is equivalent to | 37 @param paint The paint to be analyzed, NULL is equivalent to |
39 the default paint. | 38 the default paint. |
40 @param bmpReplacesShader a bitmap to be used in place of the paint's | 39 @param bmpReplacesShader a bitmap to be used in place of the paint's |
41 shader. | 40 shader. |
42 @return true if paint is opaque | 41 @return true if paint is opaque |
43 */ | 42 */ |
44 bool isPaintOpaque(const SkPaint* paint, const SkBitmap* bmpReplacesShader = NUL
L); | 43 bool isPaintOpaque(const SkPaint* paint, |
45 bool isPaintOpaque(const SkPaint* paint, const SkImage* image); | 44 const SkBitmap* bmpReplacesShader = NULL); |
46 | |
47 #endif | 45 #endif |
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