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
|
/*
* Copyright (c) 2015 ARM Limited
* All rights reserved
*
* The license below extends only to copyright in the software and shall
* not be construed as granting a license to any other intellectual
* property including but not limited to intellectual property relating
* to a hardware implementation of the functionality of the software
* licensed hereunder. You may use the software subject to the license
* terms below provided that you ensure that this notice is replicated
* unmodified and in its entirety in all distributions of the software,
* modified or unmodified, in source code or in binary form.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met: redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer;
* 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;
* neither the name of the copyright holders 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.
*
* Authors: Andreas Sandberg
*/
#include "base/framebuffer.hh"
#include <zlib.h>
#include "base/bitfield.hh"
const FrameBuffer FrameBuffer::dummy(320, 240);
FrameBuffer::FrameBuffer(unsigned width, unsigned height)
: pixels(width * height),
_width(width), _height(height)
{
clear();
}
FrameBuffer::FrameBuffer()
: _width(0), _height(0)
{
}
FrameBuffer::~FrameBuffer()
{
}
void
FrameBuffer::serialize(CheckpointOut &cp) const
{
SERIALIZE_SCALAR(_width);
SERIALIZE_SCALAR(_height);
SERIALIZE_CONTAINER(pixels);
}
void
FrameBuffer::unserialize(CheckpointIn &cp)
{
UNSERIALIZE_SCALAR(_width);
UNSERIALIZE_SCALAR(_height);
UNSERIALIZE_CONTAINER(pixels);
}
void
FrameBuffer::resize(unsigned width, unsigned height)
{
_width = width;
_height = height;
pixels.resize(width * height);
}
void
FrameBuffer::fill(const Pixel &pixel)
{
for (auto &p : pixels)
p = pixel;
}
void
FrameBuffer::clear()
{
static const Pixel black(0, 0, 0);
fill(black);
}
void
FrameBuffer::copyIn(const uint8_t *fb, const PixelConverter &conv)
{
for (auto &p : pixels) {
p = conv.toPixel(fb);
fb += conv.length;
}
}
void
FrameBuffer::copyOut(uint8_t *fb, const PixelConverter &conv) const
{
for (auto &p : pixels) {
conv.fromPixel(fb, p);
fb += conv.length;
}
}
uint64_t
FrameBuffer::getHash() const
{
return adler32(0UL,
reinterpret_cast<const Bytef *>(pixels.data()),
area() * sizeof(Pixel));
}
|
