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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 SkImagePriv_DEFINED | 8 #ifndef SkImagePriv_DEFINED |
9 #define SkImagePriv_DEFINED | 9 #define SkImagePriv_DEFINED |
10 | 10 |
11 #include "SkImage.h" | 11 #include "SkImage.h" |
12 | 12 |
13 // Call this if you explicitly want to use/share this pixelRef in the image | 13 // Call this if you explicitly want to use/share this pixelRef in the image |
14 extern SkImage* SkNewImageFromPixelRef(const SkImageInfo&, SkPixelRef*, | 14 extern SkImage* SkNewImageFromPixelRef(const SkImageInfo&, SkPixelRef*, size_t r
owBytes, |
15 size_t rowBytes); | 15 const SkSurfaceProps*); |
16 | 16 |
17 /** | 17 /** |
18 * Examines the bitmap to decide if it can share the existing pixelRef, or | 18 * Examines the bitmap to decide if it can share the existing pixelRef, or |
19 * if it needs to make a deep-copy of the pixels. The bitmap's pixelref will | 19 * if it needs to make a deep-copy of the pixels. The bitmap's pixelref will |
20 * be shared if either the bitmap is marked as immutable, or canSharePixelRef | 20 * be shared if either the bitmap is marked as immutable, or canSharePixelRef |
21 * is true. | 21 * is true. |
22 * | 22 * |
23 * If the bitmap's colortype cannot be converted into a corresponding | 23 * If the bitmap's colortype cannot be converted into a corresponding |
24 * SkImageInfo, or the bitmap's pixels cannot be accessed, this will return | 24 * SkImageInfo, or the bitmap's pixels cannot be accessed, this will return |
25 * NULL. | 25 * NULL. |
26 */ | 26 */ |
27 extern SkImage* SkNewImageFromBitmap(const SkBitmap&, bool canSharePixelRef); | 27 extern SkImage* SkNewImageFromBitmap(const SkBitmap&, bool canSharePixelRef, con
st SkSurfaceProps*); |
28 | 28 |
29 static inline size_t SkImageMinRowBytes(const SkImageInfo& info) { | 29 static inline size_t SkImageMinRowBytes(const SkImageInfo& info) { |
30 return SkAlign4(info.minRowBytes()); | 30 return SkAlign4(info.minRowBytes()); |
31 } | 31 } |
32 | 32 |
33 // Given an image created from SkNewImageFromBitmap, return its pixelref. This | 33 // Given an image created from SkNewImageFromBitmap, return its pixelref. This |
34 // may be called to see if the surface and the image share the same pixelref, | 34 // may be called to see if the surface and the image share the same pixelref, |
35 // in which case the surface may need to perform a copy-on-write. | 35 // in which case the surface may need to perform a copy-on-write. |
36 extern const SkPixelRef* SkBitmapImageGetPixelRef(const SkImage* rasterImage); | 36 extern const SkPixelRef* SkBitmapImageGetPixelRef(const SkImage* rasterImage); |
37 | 37 |
38 // Given an image created with NewTexture, return its GrTexture. This | 38 // Given an image created with NewTexture, return its GrTexture. This |
39 // may be called to see if the surface and the image share the same GrTexture, | 39 // may be called to see if the surface and the image share the same GrTexture, |
40 // in which case the surface may need to perform a copy-on-write. | 40 // in which case the surface may need to perform a copy-on-write. |
41 extern GrTexture* SkTextureImageGetTexture(SkImage* textureImage); | 41 extern GrTexture* SkTextureImageGetTexture(SkImage* textureImage); |
42 | 42 |
43 // Update the texture wrapped by an image created with NewTexture. This | 43 // Update the texture wrapped by an image created with NewTexture. This |
44 // is called when a surface and image share the same GrTexture and the | 44 // is called when a surface and image share the same GrTexture and the |
45 // surface needs to perform a copy-on-write | 45 // surface needs to perform a copy-on-write |
46 extern void SkTextureImageSetTexture(SkImage* image, GrTexture* texture); | 46 extern void SkTextureImageSetTexture(SkImage* image, GrTexture* texture); |
47 | 47 |
| 48 extern SkImage* SkNewImageFromBitmapTexture(const SkBitmap&, int sampleCount); |
| 49 |
48 #endif | 50 #endif |
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