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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 |
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28 * Passing kLocked_SharedPixelRefMode allows the image's peekPixels() method | 28 * Passing kLocked_SharedPixelRefMode allows the image's peekPixels() method |
29 * to succeed, but it will force any lazy decodes/generators to execute if | 29 * to succeed, but it will force any lazy decodes/generators to execute if |
30 * they exist on the pixelref. | 30 * they exist on the pixelref. |
31 * | 31 * |
32 * It is illegal to call this with a texture-backed bitmap. | 32 * It is illegal to call this with a texture-backed bitmap. |
33 * | 33 * |
34 * If the bitmap's colortype cannot be converted into a corresponding | 34 * If the bitmap's colortype cannot be converted into a corresponding |
35 * SkImageInfo, or the bitmap's pixels cannot be accessed, this will return | 35 * SkImageInfo, or the bitmap's pixels cannot be accessed, this will return |
36 * NULL. | 36 * NULL. |
37 */ | 37 */ |
38 enum SharedPixelRefMode { | |
39 kLocked_SharedPixelRefMode, | |
40 kUnlocked_SharedPixelRefMode | |
41 }; | |
42 enum ForceCopyMode { | 38 enum ForceCopyMode { |
43 kNo_ForceCopyMode, | 39 kNo_ForceCopyMode, |
44 kYes_ForceCopyMode, // must copy the pixels even if the bitmap is immutable | 40 kYes_ForceCopyMode, // must copy the pixels even if the bitmap is immutable |
45 }; | 41 }; |
46 extern SkImage* SkNewImageFromRasterBitmap(const SkBitmap&, const SkSurfaceProps
*, | 42 extern SkImage* SkNewImageFromRasterBitmap(const SkBitmap&, const SkSurfaceProps
*, |
47 SharedPixelRefMode, ForceCopyMode = k
No_ForceCopyMode); | 43 ForceCopyMode = kNo_ForceCopyMode); |
48 | 44 |
49 static inline size_t SkImageMinRowBytes(const SkImageInfo& info) { | 45 static inline size_t SkImageMinRowBytes(const SkImageInfo& info) { |
50 size_t minRB = info.minRowBytes(); | 46 size_t minRB = info.minRowBytes(); |
51 if (kIndex_8_SkColorType != info.colorType()) { | 47 if (kIndex_8_SkColorType != info.colorType()) { |
52 minRB = SkAlign4(minRB); | 48 minRB = SkAlign4(minRB); |
53 } | 49 } |
54 return minRB; | 50 return minRB; |
55 } | 51 } |
56 | 52 |
57 // Given an image created from SkNewImageFromBitmap, return its pixelref. This | 53 // Given an image created from SkNewImageFromBitmap, return its pixelref. This |
58 // may be called to see if the surface and the image share the same pixelref, | 54 // may be called to see if the surface and the image share the same pixelref, |
59 // in which case the surface may need to perform a copy-on-write. | 55 // in which case the surface may need to perform a copy-on-write. |
60 extern const SkPixelRef* SkBitmapImageGetPixelRef(const SkImage* rasterImage); | 56 extern const SkPixelRef* SkBitmapImageGetPixelRef(const SkImage* rasterImage); |
61 | 57 |
62 // When a texture is shared by a surface and an image its budgeted status is tha
t of the | 58 // When a texture is shared by a surface and an image its budgeted status is tha
t of the |
63 // surface. This function is used when the surface makes a new texture for itsel
f in order | 59 // surface. This function is used when the surface makes a new texture for itsel
f in order |
64 // for the orphaned image to determine whether the original texture counts again
st the | 60 // for the orphaned image to determine whether the original texture counts again
st the |
65 // budget or not. | 61 // budget or not. |
66 extern void SkTextureImageApplyBudgetedDecision(SkImage* textureImage); | 62 extern void SkTextureImageApplyBudgetedDecision(SkImage* textureImage); |
67 | 63 |
68 // Update the texture wrapped by an image created with NewTexture. This | 64 // Update the texture wrapped by an image created with NewTexture. This |
69 // is called when a surface and image share the same GrTexture and the | 65 // is called when a surface and image share the same GrTexture and the |
70 // surface needs to perform a copy-on-write | 66 // surface needs to perform a copy-on-write |
71 extern void SkTextureImageSetTexture(SkImage* image, GrTexture* texture); | 67 extern void SkTextureImageSetTexture(SkImage* image, GrTexture* texture); |
72 | 68 |
73 GrTexture* GrDeepCopyTexture(GrTexture* src, bool isBudgeted); | 69 GrTexture* GrDeepCopyTexture(GrTexture* src, bool isBudgeted); |
74 | 70 |
75 #endif | 71 #endif |
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