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Side by Side Diff: include/core/SkBitmap.h

Issue 83383007: Adding SkDeferredCanvas::NoticifationClient to the exported API. (Closed) Base URL: https://skia.googlecode.com/svn/trunk
Patch Set: Also need SkBitmap::Allocatorw Created 7 years ago
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1 1
2 /* 2 /*
3 * Copyright 2006 The Android Open Source Project 3 * Copyright 2006 The Android Open Source Project
4 * 4 *
5 * Use of this source code is governed by a BSD-style license that can be 5 * Use of this source code is governed by a BSD-style license that can be
6 * found in the LICENSE file. 6 * found in the LICENSE file.
7 */ 7 */
8 8
9 9
10 #ifndef SkBitmap_DEFINED 10 #ifndef SkBitmap_DEFINED
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31 The SkBitmap class specifies a raster bitmap. A bitmap has an integer width 31 The SkBitmap class specifies a raster bitmap. A bitmap has an integer width
32 and height, and a format (config), and a pointer to the actual pixels. 32 and height, and a format (config), and a pointer to the actual pixels.
33 Bitmaps can be drawn into a SkCanvas, but they are also used to specify the 33 Bitmaps can be drawn into a SkCanvas, but they are also used to specify the
34 target of a SkCanvas' drawing operations. 34 target of a SkCanvas' drawing operations.
35 A const SkBitmap exposes getAddr(), which lets a caller write its pixels; 35 A const SkBitmap exposes getAddr(), which lets a caller write its pixels;
36 the constness is considered to apply to the bitmap's configuration, not 36 the constness is considered to apply to the bitmap's configuration, not
37 its contents. 37 its contents.
38 */ 38 */
39 class SK_API SkBitmap { 39 class SK_API SkBitmap {
40 public: 40 public:
41 class Allocator; 41 class SK_API Allocator;
42 42
43 enum Config { 43 enum Config {
44 kNo_Config, //!< bitmap has not been configured 44 kNo_Config, //!< bitmap has not been configured
45 /** 45 /**
46 * 1-bit per pixel, (0 is transparent, 1 is opaque) 46 * 1-bit per pixel, (0 is transparent, 1 is opaque)
47 * Valid as a destination (target of a canvas), but not valid as a src. 47 * Valid as a destination (target of a canvas), but not valid as a src.
48 * i.e. you can draw into a 1-bit bitmap, but you cannot draw from one. 48 * i.e. you can draw into a 1-bit bitmap, but you cannot draw from one.
49 */ 49 */
50 kA1_Config, 50 kA1_Config,
51 kA8_Config, //!< 8-bits per pixel, with only alpha specified (0 is transparent, 0xFF is opaque) 51 kA8_Config, //!< 8-bits per pixel, with only alpha specified (0 is transparent, 0xFF is opaque)
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820 820
821 // returns the address of the byte that contains the x coordinate 821 // returns the address of the byte that contains the x coordinate
822 inline uint8_t* SkBitmap::getAddr1(int x, int y) const { 822 inline uint8_t* SkBitmap::getAddr1(int x, int y) const {
823 SkASSERT(fPixels); 823 SkASSERT(fPixels);
824 SkASSERT(fConfig == kA1_Config); 824 SkASSERT(fConfig == kA1_Config);
825 SkASSERT((unsigned)x < fWidth && (unsigned)y < fHeight); 825 SkASSERT((unsigned)x < fWidth && (unsigned)y < fHeight);
826 return (uint8_t*)fPixels + y * fRowBytes + (x >> 3); 826 return (uint8_t*)fPixels + y * fRowBytes + (x >> 3);
827 } 827 }
828 828
829 #endif 829 #endif
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