blob: b74858bd542d7024e886a8658ce2a2e525336500 (
plain) (
blame)
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
|
#include "VGADisplay.h"
VGADisplay::VGADisplay()
{
isBright = isBlink = shift = 0;
xCurr = yCurr = 0;
color = (char)VGADisplayInfo::colorAttr::gray;
videoMem = (dchar *)VGADisplayInfo::videoMemAddr;
};
VGADisplay::VGADisplay(uint16 x, uint16 y)
{
isBright = isBlink = shift = 0;
xCurr = yCurr = 0;
color = (char)VGADisplayInfo::colorAttr::gray;
videoMem = (dchar *)VGADisplayInfo::videoMemAddr;
};
VGADisplay& VGADisplay::operator<<(const char &c)
{
printChar(c);
return *this;
};
VGADisplay& VGADisplay::operator++(int)
{
if(++xCurr == VGADisplayInfo::width)
{
yCurr++;
xCurr = 0;
}
if(yCurr == VGADisplayInfo::height)
{
if(shift)
{
this->doShift();
xCurr = 0;
yCurr--;
}
else xCurr = 0, yCurr = 0;
}
videoMem = (dchar *)(VGADisplayInfo::videoMemAddr)
+ yCurr * VGADisplayInfo::width + xCurr;
return *this;
};
VGADisplay& VGADisplay::operator<<(const char *c)
{
for(int i = 0; c[i] != '\0'; i++)
{
(*this) << c[i];
}
return *this;
};
void VGADisplay::doShift()
{
for(uint16 i = 0; i < VGADisplayInfo::height; i++)
{
for(uint16 j = 0; j < VGADisplayInfo::width; j++)
{
*((dchar *)(VGADisplayInfo::videoMemAddr) + (i - 1) * VGADisplayInfo::width + j) = *((dchar *)(VGADisplayInfo::videoMemAddr) + i * VGADisplayInfo::width + j);
*((dchar *)(VGADisplayInfo::videoMemAddr) + i * VGADisplayInfo::width + j) = (*((dchar *)(VGADisplayInfo::videoMemAddr) + i * VGADisplayInfo::width + j) & 0x00) | ' ';
}
}
};
void VGADisplay::setShift(bool status)
{
shift = status;
};
void VGADisplay::setColor(char colorAttr)
{
color = colorAttr;
};
void VGADisplay::setBlink(bool blinkAttr)
{
isBlink = blinkAttr;
};
void VGADisplay::setBright(bool brigthAttr)
{
isBright = brigthAttr;
};
void VGADisplay::goNewLine()
{
uint16 yCurrOld = yCurr;
while(yCurrOld == yCurr) (*this)++;
};
void VGADisplay::goHorizontalTab()
{
while(xCurr % 8 != 0) (*this)++;
};
bool VGADisplay::printChar(const char &c)
{
switch(c)
{
case '\0': return true;
case '\n': this->goNewLine(); return true;
case '\t': this->goHorizontalTab(); return true;
default:
{
char attr = isBlink << 8 | isBright << 4
| color;
*videoMem = c | attr << 8;
(*this)++;
return false;
}
}
};
|
