blob: b16ab9a111d53b06ea8f48b4f9a5f3f87b34b355 (
plain)
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
|
/*
* iMON LCD plugin to VDR (C++)
*
* (C) 2009 Andreas Brachold <vdr07 AT deltab de>
*
* This code is distributed under the terms and conditions of the
* GNU GENERAL PUBLIC LICENSE. See the file COPYING for details.
*
*/
#include <vdr/tools.h>
#include "bitmap.h"
ciMonBitmap::ciMonBitmap(int w, int h) {
width = w;
height = h;
// lines are byte aligned
bytesPerLine = (width + 7) / 8;
bitmap = MALLOC(uchar, bytesPerLine * height);
clear();
}
ciMonBitmap::ciMonBitmap() {
height = 0;
width = 0;
bitmap = NULL;
}
ciMonBitmap::~ciMonBitmap() {
if(bitmap)
free(bitmap);
bitmap = NULL;
}
ciMonBitmap& ciMonBitmap::operator = (const ciMonBitmap& x) {
if(height != x.height
|| width != x.width
|| bitmap == NULL) {
if(bitmap)
free(bitmap);
bitmap = NULL;
height = x.height;
width = x.width;
bytesPerLine = (width + 7) / 8;
if(height && width)
bitmap = MALLOC(uchar, bytesPerLine * height);
}
if(x.bitmap)
memcpy(bitmap, x.bitmap, bytesPerLine * height);
return *this;
}
bool ciMonBitmap::operator == (const ciMonBitmap& x) const {
if(height != x.height
|| width != x.width
|| bitmap == NULL
|| x.bitmap == NULL)
return false;
return ((memcmp(x.bitmap, bitmap, bytesPerLine * height)) == 0);
}
void ciMonBitmap::clear() {
if (bitmap)
memset(bitmap, 0x00, bytesPerLine * height);
}
bool ciMonBitmap::SetPixel(int x, int y)
{
unsigned char c;
unsigned int n;
if (!bitmap)
return false;
if (x >= width || x < 0)
return false;
if (y >= height || y < 0)
return false;
n = x + ((y / 8) * width);
c = 0x80 >> (y % 8);
if(n >= (bytesPerLine * height))
return false;
bitmap[n] |= c;
return true;
}
|
