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
|
#include <display_draw.h>
#include <display.h>
#include <task.h>
#include <clock.h>
volatile uint8_t lock = 0;
#define LOCK while (lock) { delay(5); } task_hold(1); lock = 1
#define UNLOCK task_hold(0); lock = 0
static unsigned int curx = 0;
static unsigned int cury = 0;
static unsigned int curxo = 0;
static unsigned int curyo = 0;
extern const unsigned char inconsolata24[192 * 156 * 2 + 1];
void task_cursor(void)
{
while (1) {
int x = curxo + curx * 12;
int y = curyo + cury * 26;
dsp_rect(x, y + 24, 12, 1, 0xFFFF);
delay(300);
dsp_rect(x, y + 24, 12, 1, 0);
delay(300);
}
}
void dsp_cursoron(void)
{
task_start(task_cursor, 512);
}
void dsp_putchar(int c)
{
LOCK;
if (c == '\n') {
curx = 0;
if (++cury == 12) {
UNLOCK;
dsp_rect(0, 0, LCD_WIDTH, LCD_HEIGHT, 0);
LOCK;
cury = 0;
}
return;
}
unsigned int start = ((c - ' ') / 16 * 192 * 26 + (c % 16) * 12) * 2;
unsigned int x = curxo + curx * 12;
unsigned int y = curyo + cury * 26;
dsp_set_addr(x, y, x + 11, y + 25);
// for each row
for (unsigned int i = 0; i < 26; i++) {
// for each column
for (int j = 12 * 2 - 1; j >= 0; j--)
dsp_write_data(inconsolata24[start + (i * 192 * 2) + j]);
}
if (++curx == 40) {
curx = 0;
if (++cury == 12) {
UNLOCK;
dsp_rect(0, 0, LCD_WIDTH, LCD_HEIGHT, 0);
LOCK;
cury = 0;
}
}
UNLOCK;
}
void dsp_puts(const char *s)
{
unsigned int i = 0;
while (s[i])
dsp_putchar(s[i++]);
}
void dsp_cpos(int x, int y)
{
curx = x;
cury = y;
}
void dsp_coff(int x, int y)
{
curxo = x;
curyo = y;
}
void dsp_rect(int x, int y, int w, int h, uint16_t color)
{
dsp_set_addr(x, y, x + w - 1, y + h - 1);
int countdown = w * h;
do {
LOCK;
dsp_write_data(color >> 8);
dsp_write_data(color & 0xFF);
UNLOCK;
} while (countdown--);
}
void dsp_line(int x, int y, int i, int j, uint16_t color)
{
int dx = i - x;
int sx = dx >= 0 ? 1 : -1;
int dy = j - y;
int sy = dy >= 0 ? 1 : -1;
if (dx < 0)
dx *= -1;
if (dy < 0)
dy *= -1;
int err = (dx > dy ? dx : -dy) / 2;
int e2;
while (1) {
LOCK;
dsp_set_addr(x, y, x, y);
dsp_write_data(color >> 8);
dsp_write_data(color & 0xFF);
UNLOCK;
if (x == i && y == j)
break;
e2 = err;
if (e2 > -dx) {
err -= dy;
x += sx;
}
if (e2 < dy) {
err += dx;
y += sy;
}
}
}
|
