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comparison: gfx/skia/trunk/src/image/SkImagePriv.h
gfx/skia/trunk/src/image/SkImagePriv.h
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- TOR_BUG_3246
- changeset 6
- 8bccb770b82d
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| -1:000000000000 | 0:f1b83bd089ed |
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| 1 /* | |
| 2 * Copyright 2012 Google Inc. | |
| 3 * | |
| 4 * Use of this source code is governed by a BSD-style license that can be | |
| 5 * found in the LICENSE file. | |
| 6 */ | |
| 7 | |
| 8 #ifndef SkImagePriv_DEFINED | |
| 9 #define SkImagePriv_DEFINED | |
| 10 | |
| 11 #include "SkBitmap.h" | |
| 12 #include "SkImage.h" | |
| 13 | |
| 14 class SkPicture; | |
| 15 | |
| 16 extern SkBitmap::Config SkImageInfoToBitmapConfig(const SkImageInfo&); | |
| 17 | |
| 18 // Call this if you explicitly want to use/share this pixelRef in the image | |
| 19 extern SkImage* SkNewImageFromPixelRef(const SkImageInfo&, SkPixelRef*, | |
| 20 size_t rowBytes); | |
| 21 | |
| 22 /** | |
| 23 * Examines the bitmap to decide if it can share the existing pixelRef, or | |
| 24 * if it needs to make a deep-copy of the pixels. The bitmap's pixelref will | |
| 25 * be shared if either the bitmap is marked as immutable, or canSharePixelRef | |
| 26 * is true. | |
| 27 * | |
| 28 * If the bitmap's config cannot be converted into a corresponding | |
| 29 * SkImageInfo, or the bitmap's pixels cannot be accessed, this will return | |
| 30 * NULL. | |
| 31 */ | |
| 32 extern SkImage* SkNewImageFromBitmap(const SkBitmap&, bool canSharePixelRef); | |
| 33 | |
| 34 extern void SkImagePrivDrawPicture(SkCanvas*, SkPicture*, | |
| 35 SkScalar x, SkScalar y, const SkPaint*); | |
| 36 | |
| 37 extern void SkImagePrivDrawPicture(SkCanvas*, SkPicture*, | |
| 38 const SkRect*, const SkRect&, const SkPaint*); | |
| 39 | |
| 40 /** | |
| 41 * Return an SkImage whose contents are those of the specified picture. Note: | |
| 42 * The picture itself is unmodified, and may continue to be used for recording | |
| 43 */ | |
| 44 extern SkImage* SkNewImageFromPicture(const SkPicture*); | |
| 45 | |
| 46 static inline size_t SkImageMinRowBytes(const SkImageInfo& info) { | |
| 47 return SkAlign4(info.minRowBytes()); | |
| 48 } | |
| 49 | |
| 50 // Given an image created from SkNewImageFromBitmap, return its pixelref. This | |
| 51 // may be called to see if the surface and the image share the same pixelref, | |
| 52 // in which case the surface may need to perform a copy-on-write. | |
| 53 extern SkPixelRef* SkBitmapImageGetPixelRef(SkImage* rasterImage); | |
| 54 | |
| 55 // Given an image created with NewPicture, return its SkPicture. | |
| 56 extern SkPicture* SkPictureImageGetPicture(SkImage* pictureImage); | |
| 57 | |
| 58 // Given an image created with NewTexture, return its GrTexture. This | |
| 59 // may be called to see if the surface and the image share the same GrTexture, | |
| 60 // in which case the surface may need to perform a copy-on-write. | |
| 61 extern GrTexture* SkTextureImageGetTexture(SkImage* textureImage); | |
| 62 | |
| 63 // Update the texture wrapped by an image created with NewTexture. This | |
| 64 // is called when a surface and image share the same GrTexture and the | |
| 65 // surface needs to perform a copy-on-write | |
| 66 extern void SkTextureImageSetTexture(SkImage* image, GrTexture* texture); | |
| 67 | |
| 68 #endif |
