1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
|
/*
* Copyright 2011 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SkBlitMask_DEFINED
#define SkBlitMask_DEFINED
#include "SkBitmap.h"
#include "SkColor.h"
#include "SkMask.h"
class SkBlitMask {
public:
/**
* Returns true if the device config and mask format were supported.
* else return false (nothing was drawn)
*/
static bool BlitColor(const SkBitmap& device, const SkMask& mask,
const SkIRect& clip, SkColor color);
/**
* Function pointer that blits the mask into a device (dst) colorized
* by color. The number of pixels to blit is specified by width and height,
* but each scanline is offset by dstRB (rowbytes) and srcRB respectively.
*/
typedef void (*ColorProc)(void* dst, size_t dstRB,
const void* mask, size_t maskRB,
SkColor color, int width, int height);
/**
* Function pointer that blits a row of src colors through a row of a mask
* onto a row of dst colors. The RowFactory that returns this function ptr
* will have been told the formats for the mask and the dst.
*/
typedef void (*RowProc)(void* dst, const void* mask,
const SkPMColor* src, int width);
/**
* Public entry-point to return a blitmask ColorProc.
* May return NULL if config or format are not supported.
*/
static ColorProc ColorFactory(SkBitmap::Config, SkMask::Format, SkColor);
/**
* Return either platform specific optimized blitmask ColorProc,
* or NULL if no optimized routine is available.
*/
static ColorProc PlatformColorProcs(SkBitmap::Config, SkMask::Format, SkColor);
enum RowFlags {
kSrcIsOpaque_RowFlag = 1 << 0
};
/**
* Public entry-point to return a blitmask RowProc.
* May return NULL if config or format are not supported.
*/
static RowProc RowFactory(SkBitmap::Config, SkMask::Format, RowFlags);
/**
* Return either platform specific optimized blitmask RowProc,
* or NULL if no optimized routine is available.
*/
static RowProc PlatformRowProcs(SkBitmap::Config, SkMask::Format, RowFlags);
};
#endif
|
