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
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
|
/*
* Copyright 2006 The Android Open Source Project
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SkCoreBlitters_DEFINED
#define SkCoreBlitters_DEFINED
#include "SkBitmapProcShader.h"
#include "SkBlitter.h"
#include "SkBlitRow.h"
#include "SkShader.h"
#include "SkSmallAllocator.h"
class SkRasterBlitter : public SkBlitter {
public:
SkRasterBlitter(const SkBitmap& device) : fDevice(device) {}
protected:
const SkBitmap& fDevice;
private:
typedef SkBlitter INHERITED;
};
class SkShaderBlitter : public SkRasterBlitter {
public:
SkShaderBlitter(const SkBitmap& device, const SkPaint& paint);
virtual ~SkShaderBlitter();
protected:
uint32_t fShaderFlags;
SkShader* fShader;
private:
// illegal
SkShaderBlitter& operator=(const SkShaderBlitter&);
typedef SkRasterBlitter INHERITED;
};
///////////////////////////////////////////////////////////////////////////////
class SkA8_Coverage_Blitter : public SkRasterBlitter {
public:
SkA8_Coverage_Blitter(const SkBitmap& device, const SkPaint& paint);
virtual void blitH(int x, int y, int width) SK_OVERRIDE;
virtual void blitAntiH(int x, int y, const SkAlpha antialias[], const int16_t runs[]) SK_OVERRIDE;
virtual void blitV(int x, int y, int height, SkAlpha alpha) SK_OVERRIDE;
virtual void blitRect(int x, int y, int width, int height) SK_OVERRIDE;
virtual void blitMask(const SkMask&, const SkIRect&) SK_OVERRIDE;
virtual const SkBitmap* justAnOpaqueColor(uint32_t*) SK_OVERRIDE;
};
class SkA8_Blitter : public SkRasterBlitter {
public:
SkA8_Blitter(const SkBitmap& device, const SkPaint& paint);
virtual void blitH(int x, int y, int width);
virtual void blitAntiH(int x, int y, const SkAlpha antialias[], const int16_t runs[]);
virtual void blitV(int x, int y, int height, SkAlpha alpha);
virtual void blitRect(int x, int y, int width, int height);
virtual void blitMask(const SkMask&, const SkIRect&);
virtual const SkBitmap* justAnOpaqueColor(uint32_t*);
private:
unsigned fSrcA;
// illegal
SkA8_Blitter& operator=(const SkA8_Blitter&);
typedef SkRasterBlitter INHERITED;
};
class SkA8_Shader_Blitter : public SkShaderBlitter {
public:
SkA8_Shader_Blitter(const SkBitmap& device, const SkPaint& paint);
virtual ~SkA8_Shader_Blitter();
virtual void blitH(int x, int y, int width);
virtual void blitAntiH(int x, int y, const SkAlpha antialias[], const int16_t runs[]);
virtual void blitMask(const SkMask&, const SkIRect&);
private:
SkXfermode* fXfermode;
SkPMColor* fBuffer;
uint8_t* fAAExpand;
// illegal
SkA8_Shader_Blitter& operator=(const SkA8_Shader_Blitter&);
typedef SkShaderBlitter INHERITED;
};
////////////////////////////////////////////////////////////////
class SkARGB32_Blitter : public SkRasterBlitter {
public:
SkARGB32_Blitter(const SkBitmap& device, const SkPaint& paint);
virtual void blitH(int x, int y, int width);
virtual void blitAntiH(int x, int y, const SkAlpha antialias[], const int16_t runs[]);
virtual void blitV(int x, int y, int height, SkAlpha alpha);
virtual void blitRect(int x, int y, int width, int height);
virtual void blitMask(const SkMask&, const SkIRect&);
virtual const SkBitmap* justAnOpaqueColor(uint32_t*);
protected:
SkColor fColor;
SkPMColor fPMColor;
SkBlitRow::ColorProc fColor32Proc;
SkBlitRow::ColorRectProc fColorRect32Proc;
private:
unsigned fSrcA, fSrcR, fSrcG, fSrcB;
// illegal
SkARGB32_Blitter& operator=(const SkARGB32_Blitter&);
typedef SkRasterBlitter INHERITED;
};
class SkARGB32_Opaque_Blitter : public SkARGB32_Blitter {
public:
SkARGB32_Opaque_Blitter(const SkBitmap& device, const SkPaint& paint)
: INHERITED(device, paint) { SkASSERT(paint.getAlpha() == 0xFF); }
virtual void blitMask(const SkMask&, const SkIRect&);
private:
typedef SkARGB32_Blitter INHERITED;
};
class SkARGB32_Black_Blitter : public SkARGB32_Opaque_Blitter {
public:
SkARGB32_Black_Blitter(const SkBitmap& device, const SkPaint& paint)
: INHERITED(device, paint) {}
virtual void blitAntiH(int x, int y, const SkAlpha antialias[], const int16_t runs[]);
private:
typedef SkARGB32_Opaque_Blitter INHERITED;
};
class SkARGB32_Shader_Blitter : public SkShaderBlitter {
public:
SkARGB32_Shader_Blitter(const SkBitmap& device, const SkPaint& paint);
virtual ~SkARGB32_Shader_Blitter();
virtual void blitH(int x, int y, int width) SK_OVERRIDE;
virtual void blitV(int x, int y, int height, SkAlpha alpha) SK_OVERRIDE;
virtual void blitRect(int x, int y, int width, int height) SK_OVERRIDE;
virtual void blitAntiH(int x, int y, const SkAlpha[], const int16_t[]) SK_OVERRIDE;
virtual void blitMask(const SkMask&, const SkIRect&) SK_OVERRIDE;
private:
SkXfermode* fXfermode;
SkPMColor* fBuffer;
SkBlitRow::Proc32 fProc32;
SkBlitRow::Proc32 fProc32Blend;
bool fShadeDirectlyIntoDevice;
bool fConstInY;
// illegal
SkARGB32_Shader_Blitter& operator=(const SkARGB32_Shader_Blitter&);
typedef SkShaderBlitter INHERITED;
};
///////////////////////////////////////////////////////////////////////////////
/* These return the correct subclass of blitter for their device config.
Currently, they make the following assumptions about the state of the
paint:
1. If there is an xfermode, there will also be a shader
2. If there is a colorfilter, there will be a shader that itself handles
calling the filter, so the blitter can always ignore the colorfilter obj
These pre-conditions must be handled by the caller, in our case
SkBlitter::Choose(...)
*/
SkBlitter* SkBlitter_ChooseD565(const SkBitmap& device, const SkPaint& paint,
SkTBlitterAllocator* allocator);
#endif
|
