gfx/skia/trunk/src/image/SkImagePriv.h@6474c204b198 (annotated)
gfx/skia/trunk/src/image/SkImagePriv.h
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
| michael@0 | 1 | /* |
| michael@0 | 2 | * Copyright 2012 Google Inc. |
| michael@0 | 3 | * |
| michael@0 | 4 | * Use of this source code is governed by a BSD-style license that can be |
| michael@0 | 5 | * found in the LICENSE file. |
| michael@0 | 6 | */ |
| michael@0 | 7 | |
| michael@0 | 8 | #ifndef SkImagePriv_DEFINED |
| michael@0 | 9 | #define SkImagePriv_DEFINED |
| michael@0 | 10 | |
| michael@0 | 11 | #include "SkBitmap.h" |
| michael@0 | 12 | #include "SkImage.h" |
| michael@0 | 13 | |
| michael@0 | 14 | class SkPicture; |
| michael@0 | 15 | |
| michael@0 | 16 | extern SkBitmap::Config SkImageInfoToBitmapConfig(const SkImageInfo&); |
| michael@0 | 17 | |
| michael@0 | 18 | // Call this if you explicitly want to use/share this pixelRef in the image |
| michael@0 | 19 | extern SkImage* SkNewImageFromPixelRef(const SkImageInfo&, SkPixelRef*, |
| michael@0 | 20 | size_t rowBytes); |
| michael@0 | 21 | |
| michael@0 | 22 | /** |
| michael@0 | 23 | * Examines the bitmap to decide if it can share the existing pixelRef, or |
| michael@0 | 24 | * if it needs to make a deep-copy of the pixels. The bitmap's pixelref will |
| michael@0 | 25 | * be shared if either the bitmap is marked as immutable, or canSharePixelRef |
| michael@0 | 26 | * is true. |
| michael@0 | 27 | * |
| michael@0 | 28 | * If the bitmap's config cannot be converted into a corresponding |
| michael@0 | 29 | * SkImageInfo, or the bitmap's pixels cannot be accessed, this will return |
| michael@0 | 30 | * NULL. |
| michael@0 | 31 | */ |
| michael@0 | 32 | extern SkImage* SkNewImageFromBitmap(const SkBitmap&, bool canSharePixelRef); |
| michael@0 | 33 | |
| michael@0 | 34 | extern void SkImagePrivDrawPicture(SkCanvas*, SkPicture*, |
| michael@0 | 35 | SkScalar x, SkScalar y, const SkPaint*); |
| michael@0 | 36 | |
| michael@0 | 37 | extern void SkImagePrivDrawPicture(SkCanvas*, SkPicture*, |
| michael@0 | 38 | const SkRect*, const SkRect&, const SkPaint*); |
| michael@0 | 39 | |
| michael@0 | 40 | /** |
| michael@0 | 41 | * Return an SkImage whose contents are those of the specified picture. Note: |
| michael@0 | 42 | * The picture itself is unmodified, and may continue to be used for recording |
| michael@0 | 43 | */ |
| michael@0 | 44 | extern SkImage* SkNewImageFromPicture(const SkPicture*); |
| michael@0 | 45 | |
| michael@0 | 46 | static inline size_t SkImageMinRowBytes(const SkImageInfo& info) { |
| michael@0 | 47 | return SkAlign4(info.minRowBytes()); |
| michael@0 | 48 | } |
| michael@0 | 49 | |
| michael@0 | 50 | // Given an image created from SkNewImageFromBitmap, return its pixelref. This |
| michael@0 | 51 | // may be called to see if the surface and the image share the same pixelref, |
| michael@0 | 52 | // in which case the surface may need to perform a copy-on-write. |
| michael@0 | 53 | extern SkPixelRef* SkBitmapImageGetPixelRef(SkImage* rasterImage); |
| michael@0 | 54 | |
| michael@0 | 55 | // Given an image created with NewPicture, return its SkPicture. |
| michael@0 | 56 | extern SkPicture* SkPictureImageGetPicture(SkImage* pictureImage); |
| michael@0 | 57 | |
| michael@0 | 58 | // Given an image created with NewTexture, return its GrTexture. This |
| michael@0 | 59 | // may be called to see if the surface and the image share the same GrTexture, |
| michael@0 | 60 | // in which case the surface may need to perform a copy-on-write. |
| michael@0 | 61 | extern GrTexture* SkTextureImageGetTexture(SkImage* textureImage); |
| michael@0 | 62 | |
| michael@0 | 63 | // Update the texture wrapped by an image created with NewTexture. This |
| michael@0 | 64 | // is called when a surface and image share the same GrTexture and the |
| michael@0 | 65 | // surface needs to perform a copy-on-write |
| michael@0 | 66 | extern void SkTextureImageSetTexture(SkImage* image, GrTexture* texture); |
| michael@0 | 67 | |
| michael@0 | 68 | #endif |
