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Side by Side Diff: src/image/SkImagePriv.h

Issue 161733002: add peekPixels to SkCanvas and SkSurface (Closed) Base URL: https://skia.googlecode.com/svn/trunk
Patch Set: Created 6 years, 10 months ago
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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 "SkBitmap.h" 11 #include "SkBitmap.h"
12 #include "SkImage.h" 12 #include "SkImage.h"
13 13
14 class SkPicture; 14 class SkPicture;
15 15
16 extern SkBitmap::Config SkImageInfoToBitmapConfig(const SkImageInfo&); 16 extern SkBitmap::Config SkImageInfoToBitmapConfig(const SkImageInfo&);
17 extern SkBitmap::Config SkColorTypeToBitmapConfig(SkColorType);
18 extern SkColorType SkBitmapConfigToColorType(SkBitmap::Config);
19 17
20 // Call this if you explicitly want to use/share this pixelRef in the image 18 // Call this if you explicitly want to use/share this pixelRef in the image
21 extern SkImage* SkNewImageFromPixelRef(const SkImageInfo&, SkPixelRef*, 19 extern SkImage* SkNewImageFromPixelRef(const SkImageInfo&, SkPixelRef*,
22 size_t rowBytes); 20 size_t rowBytes);
23 21
24 /** 22 /**
25 * Examines the bitmap to decide if it can share the existing pixelRef, or 23 * Examines the bitmap to decide if it can share the existing pixelRef, or
26 * if it needs to make a deep-copy of the pixels. The bitmap's pixelref will 24 * if it needs to make a deep-copy of the pixels. The bitmap's pixelref will
27 * be shared if either the bitmap is marked as immutable, or canSharePixelRef 25 * be shared if either the bitmap is marked as immutable, or canSharePixelRef
28 * is true. 26 * is true.
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61 // may be called to see if the surface and the image share the same GrTexture, 59 // may be called to see if the surface and the image share the same GrTexture,
62 // in which case the surface may need to perform a copy-on-write. 60 // in which case the surface may need to perform a copy-on-write.
63 extern GrTexture* SkTextureImageGetTexture(SkImage* textureImage); 61 extern GrTexture* SkTextureImageGetTexture(SkImage* textureImage);
64 62
65 // Update the texture wrapped by an image created with NewTexture. This 63 // Update the texture wrapped by an image created with NewTexture. This
66 // is called when a surface and image share the same GrTexture and the 64 // is called when a surface and image share the same GrTexture and the
67 // surface needs to perform a copy-on-write 65 // surface needs to perform a copy-on-write
68 extern void SkTextureImageSetTexture(SkImage* image, GrTexture* texture); 66 extern void SkTextureImageSetTexture(SkImage* image, GrTexture* texture);
69 67
70 #endif 68 #endif
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