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
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
|
/****************************************************************************
* graphics/nxglib/nxglib_bitblit.h
*
* Copyright (C) 2008 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
#ifndef __GRAPHICS_NXGLIB_NXGLIB_BITBLIT_H
#define __GRAPHICS_NXGLIB_NXGLIB_BITBLIT_H
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <sys/types.h>
#include <nuttx/nxglib.h>
/****************************************************************************
* Pre-Processor Definitions
****************************************************************************/
/* Make sure the the bits-per-pixel value has been set by the includer of
* this header file.
*/
#ifndef NXGLIB_BITSPERPIXEL
# error "NXGLIB_BITSPERPIXEL must be defined before including this header file"
#endif
/* Set up bit blit macros for this BPP */
#if NXGLIB_BITSPERPIXEL == 1
# define NX_PIXELSHIFT 3
# define NX_PIXELMASK 7
# define NX_MULTIPIXEL(p) ((p) ? 0xff | 0x00)
# define NX_PIXEL_T ubyte
#elif NXGLIB_BITSPERPIXEL == 2
# define NX_PIXELSHIFT 2
# define NX_PIXELMASK 3
# define NX_MULTIPIXEL(p) ((ubyte)(p) << 6 | (ubyte)(p) << 4 | (ubyte)(p) << 2 | (p))
# define NX_PIXEL_T ubyte
#elif NXGLIB_BITSPERPIXEL == 4
# define NX_PIXELSHIFT 1
# define NX_PIXELMASK 1
# define NX_MULTIPIXEL(p) ((ubyte)(p) << 4 | (p))
# define NX_PIXEL_T ubyte
#elif NXGLIB_BITSPERPIXEL == 8
# define NX_SCALEX(x) (x)
# define NX_PIXEL_T ubyte
#elif NXGLIB_BITSPERPIXEL == 16
# define NX_SCALEX(x) ((x) << 1)
# define NX_PIXEL_T uint16
#elif NXGLIB_BITSPERPIXEL == 24
# define NX_SCALEX(x) (((x) << 1) + (x))
# define NX_PIXEL_T uint32
#elif NXGLIB_BITSPERPIXEL == 32
# define NX_SCALEX(x) ((x) << 2)
# define NX_PIXEL_T uint32
#endif
#if NXGLIB_BITSPERPIXEL < 8
# define NX_SCALEX(x) ((x) >> NX_PIXELSHIFT)
# define NX_REMAINDERX(x) ((x) & NX_PIXELMASK)
# define NX_ALIGNDOWN(x) ((x) & ~NX_PIXELMASK)
# define NX_ALIGNUP(x) (((x) + NX_PIXELMASK) & ~NX_PIXELMASK)
# ifdef CONFIG_NX_PACKEDMSFIRST
# define NX_MASKEDSRC1(s,r) ((s) & (((ubyte)0xff) >> (8 - ((r) << pixelshift))))
# define NX_MASKEDVALUE1(s,r) ((s) & (((ubyte)0xff) << ((r) << NX_PIXELSHFIT)))
# define NX_MASKEDSRC2(s,r) ((s) & (((ubyte)0xff) >> ((r) << pixelshift)))
# define NX_MASKEDVALUE2(s,r) ((s) & (((ubyte)0xff) << (8 - ((r) << NX_PIXELSHFIT))))
# else
# define NX_MASKEDSRC1(s,r) ((s) & (((ubyte)0xff) >> ((r) << pixelshift)))
# define NX_MASKEDVALUE1(s,r) ((s) & (((ubyte)0xff) << (8 - ((r) << NX_PIXELSHFIT))))
# define NX_MASKEDSRC2(s,r) ((s) & (((ubyte)0xff) >> (8 - ((r) << pixelshift))))
# define NX_MASKEDVALUE2(s,r) ((s) & (((ubyte)0xff) << ((r) << NX_PIXELSHFIT)))
# endif
# define NXGL_MEMSET(dest,value,width) \
{ \
FAR uybte *_ptr = (FAR ubyte*)dest; \
int nbytes = NX_SCALEX(width)); \
while (nbytes--) \
{ \
*_ptr++ = value; \
} \
}
# define NXGL_MEMCPY(dest,src,width) \
{ \
FAR ubyte *_dptr = (FAR ubyte*)dest; \
FAR ubyte *_sptr = (FAR ubyte*)src; \
int nbytes = NX_SCALEX(width)); \
while (npixels--) \
{ \
*_dptr++ = *_sptr++; \
} \
}
#elif NXGLIB_BITSPERPIXEL == 24
# define NXGL_MEMSET(dest,value,width) \
{ \
FAR uybte *_ptr = (FAR ubyte*)dest; \
while (width--) \
{ \
*_ptr++ = value; \
*_ptr++ = value >> 8; \
*_ptr++ = value >> 16; \
} \
}
# define NXGL_MEMCPY(dest,src,width) \
{ \
FAR ubyte *_dptr = (FAR ubyte*)dest; \
FAR ubyte *_sptr = (FAR ubyte*)src; \
while (width--) \
{ \
*_dptr++ = *_sptr++; \
*_dptr++ = *_sptr++; \
*_dptr++ = *_sptr++; \
} \
}
#else
# define NXGL_MEMSET(dest,value,width) \
{ \
FAR nx_pixel_t *_ptr = (FAR ubyte*)dest; \
while (width--) \
{ \
*_ptr++ = value; \
} \
}
# define NXGL_MEMCPY(dest,src,width) \
{ \
FAR nx_pixel_t *_dptr = (FAR ubyte*)dest; \
FAR nx_pixel_t *_sptr = (FAR ubyte*)src; \
while (width--) \
{ \
*_dptr++ = *_sptr++; \
} \
}
#endif
/****************************************************************************
* Public Types
****************************************************************************/
/****************************************************************************
* Public Data
****************************************************************************/
#undef EXTERN
#if defined(__cplusplus)
#define EXTERN extern "C"
extern "C" {
#else
#define EXTERN extern
#endif
/****************************************************************************
* Public Functions
****************************************************************************/
#undef EXTERN
#if defined(__cplusplus)
}
#endif
#endif /* __GRAPHICS_NXGLIB_NXGLIB_BITBLIT_H */
|
