-
Notifications
You must be signed in to change notification settings - Fork 0
/
fbdev.c
172 lines (133 loc) · 4.62 KB
/
fbdev.c
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
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
/**
* @file fbdev.c
*
*/
/*********************
* INCLUDES
*********************/
#include "fbdev.h"
#include "../../SerialHelper.h"
#include <Windows.h>
/*********************
* DEFINES
*********************/
/**********************
* TYPEDEFS
**********************/
/**********************
* STRUCTURES
**********************/
struct bsd_fb_var_info{
uint32_t xoffset;
uint32_t yoffset;
uint32_t xres;
uint32_t yres;
int bits_per_pixel;
};
struct bsd_fb_fix_info{
long int line_length;
long int smem_len;
};
/**********************
* STATIC PROTOTYPES
**********************/
/**********************
* STATIC VARIABLES
**********************/
// static struct fb_var_screeninfo vinfo;
// static struct fb_fix_screeninfo finfo;
static char *fbp = 0;
static long int screensize = 0;
static int fbfd = 0;
/**********************
* MACROS
**********************/
/**********************
* GLOBAL FUNCTIONS
**********************/
WindowPtr window;
void fbdev_init(void)
{
window = FrontWindow();
}
void fbdev_exit(void)
{
}
static void putpixel(unsigned char* screen, int x, int y, int color) {
// if (color == 0) {
// return;
// }
// char log[255];
// sprintf(log, "in putpixel, x: %d, y: %d, c: %d", x, y, color);
// writeSerialPort(boutRefNum, log);
// unsigned where = x + y * 512;
// screen[where] |= 1 << color;
if (color == 1) {
// this should be the byte location of the pixel
unsigned char* location = screen + y * 64 + ((x / 8) | 0);
// now we need to set the individual bit for the pixel
*location |= 0 << 7 - x % 8;
} else {
// this should be the byte location of the pixel
unsigned char* location = screen + y * 64 + ((x / 8) | 0);
// now we need to set the individual bit for the pixel
*location |= 1 << 7 - x % 8;
}
// char log[255];
// sprintf(log, "putpixel: x: %d, y: %d, color: %d, where: %d, x mod 8: %d, x / 8: %d", x, y, color, location, x % 8, (x / 8) | 0);
// writeSerialPort(boutRefNum,log);
}
#define WINDOW_WIDTH 510
#define WINDOW_HEIGHT 302
/**
* Flush a buffer to the marked area
* @param drv pointer to driver where this function belongs
* @param area an area where to copy `color_p`
* @param color_p an array of pixel to copy to the `area` part of the screen
*/
void fbdev_flush(lv_disp_drv_t * drv, const lv_area_t * area, lv_color_t * color_p)
{
writeSerialPort(boutRefNum, "in fbdev flush");
// if(fbp == NULL ||
// area->x2 < 0 ||
// area->y2 < 0 ||
// area->x1 > (int32_t)vinfo.xres - 1 ||
// area->y1 > (int32_t)vinfo.yres - 1) {
// lv_disp_flush_ready(drv);
// return;
// }
/*Truncate the area to the screen*/
int32_t act_x1 = area->x1 < 0 ? 0 : area->x1;
int32_t act_y1 = area->y1 < 0 ? 0 : area->y1;
int32_t act_x2 = area->x2 > (int32_t)WINDOW_WIDTH - 1 ? (int32_t)WINDOW_WIDTH - 1 : area->x2;
int32_t act_y2 = area->y2 > (int32_t)WINDOW_HEIGHT - 1 ? (int32_t)WINDOW_HEIGHT - 1 : area->y2;
lv_coord_t w = (act_x2 - act_x1 + 1);
long int location = 0;
long int byte_location = 0;
uint8_t * fbp8 = (uint8_t *)fbp;
int32_t x;
int32_t y;
for(y = act_y1; y <= act_y2; y++) {
for(x = act_x1; x <= act_x2; x++) {
// location = (x + vinfo.xoffset) + (y + vinfo.yoffset) * vinfo.xres;
// byte_location = location / 8; /* find the byte we need to change */
// bit_location = location % 8; /* inside the byte found, find the bit we need to change */
// fbp8[byte_location] &= ~(((uint8_t)(1)) << bit_location);
// fbp8[byte_location] |= ((uint8_t)(color_p->full)) << bit_location;
// if (color_p->full != 0 || color_p->ch.red != 0 || color_p->ch.blue != 0 || color_p->ch.green != 0) {
// char log[255];
// sprintf(log, "about to put pixel: x: %d, y: %d, color full: %d, red: %d, blue: %d, green: %d ", x, y, color_p->full, color_p->ch.red, color_p->ch.blue, color_p->ch.green);
// writeSerialPort(boutRefNum, log);
// }
putpixel((unsigned char *)window->portBits.baseAddr, -window->portBits.bounds.left + x, -window->portBits.bounds.top + y, color_p->full);
color_p++;
}
color_p += area->x2 - act_x2;
}
//May be some direct update command is required
//ret = ioctl(state->fd, FBIO_UPDATE, (unsigned long)((uintptr_t)rect));
lv_disp_flush_ready(drv);
}
/**********************
* STATIC FUNCTIONS
**********************/