2 * Copyright (c) 2010 ARM Limited
5 * The license below extends only to copyright in the software and shall
6 * not be construed as granting a license to any other intellectual
7 * property including but not limited to intellectual property relating
8 * to a hardware implementation of the functionality of the software
9 * licensed hereunder. You may use the software subject to the license
10 * terms below provided that you ensure that this notice is replicated
11 * unmodified and in its entirety in all distributions of the software,
12 * modified or unmodified, in source code or in binary form.
14 * Redistribution and use in source and binary forms, with or without
15 * modification, are permitted provided that the following conditions are
16 * met: redistributions of source code must retain the above copyright
17 * notice, this list of conditions and the following disclaimer;
18 * redistributions in binary form must reproduce the above copyright
19 * notice, this list of conditions and the following disclaimer in the
20 * documentation and/or other materials provided with the distribution;
21 * neither the name of the copyright holders nor the names of its
22 * contributors may be used to endorse or promote products derived from
23 * this software without specific prior written permission.
25 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
26 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
27 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
28 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
29 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
30 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
31 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
32 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
33 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
34 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
35 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
37 * Authors: William Wang
44 #include "base/bitmap.hh"
45 #include "base/misc.hh"
47 const size_t Bitmap::sizeofHeaderBuffer
= sizeof(Magic
) + sizeof(Header
) +
51 Bitmap::Bitmap(VideoConvert::Mode _mode
, uint16_t w
, uint16_t h
, uint8_t *d
)
52 : mode(_mode
), height(h
), width(w
), data(d
),
53 vc(mode
, VideoConvert::rgb8888
, width
, height
), headerBuffer(0)
59 delete [] headerBuffer
;
63 Bitmap::write(std::ostream
*bmp
) const
67 // header is always the same for a bitmap object; compute the info once per
70 // For further information see:
71 // http://en.wikipedia.org/wiki/BMP_file_format
72 Magic magic
= {{'B','M'}};
74 static_cast<uint32_t>(sizeof(VideoConvert::Rgb8888
)) *
75 width
* height
, 0, 0, 54};
76 Info info
= {static_cast<uint32_t>(sizeof(Info
)), width
, height
, 1,
77 static_cast<uint32_t>(sizeof(VideoConvert::Rgb8888
)) * 8,
78 0, static_cast<uint32_t>(sizeof(VideoConvert::Rgb8888
)) *
79 width
* height
, 1, 1, 0, 0};
81 char *p
= headerBuffer
= new char[sizeofHeaderBuffer
];
82 memcpy(p
, &magic
, sizeof(Magic
));
84 memcpy(p
, &header
, sizeof(Header
));
86 memcpy(p
, &info
, sizeof(Info
));
89 // 1. write the header
90 bmp
->write(headerBuffer
, sizeofHeaderBuffer
);
92 // 2. write the bitmap data
93 uint8_t *tmp
= vc
.convert(data
);
94 uint32_t *tmp32
= (uint32_t*)tmp
;
96 // BMP start store data left to right starting with the bottom row
97 // so we need to do some creative flipping
98 for (int i
= height
- 1; i
>= 0; i
--)
99 for (int j
= 0; j
< width
; j
++)
100 bmp
->write((char*)&tmp32
[i
* width
+ j
], sizeof(uint32_t));