seo/Kernel-Weather-Clock
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Refactor OLED display drawing logic

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Refactor drawing logic and clean up code structure.
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Seo Chaegeon authored and GitHub committed 2026-01-08 14:48:57 +09:00
1 parent d3b794a325
commit d818a3035e
1 file changed
+45 -58
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application.c
+45 -58
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@@ -8,13 +8,11 @@
#include <linux/i2c-dev.h>
#define CLOCK_DEV "/dev/clock_drv"
#define I2C_DEV "/dev/i2c-1"
#define OLED_I2C_ADDR 0x3C
#define OLED_W 128
#define OLED_H 64
static uint8_t fb[OLED_W * OLED_H / 8];
static int i2c_fd = -1;
@@ -86,7 +84,6 @@ static void oled_flush(void) {
oled_data_chunk(fb, sizeof(fb));
}
static void fb_clear(void) { memset(fb, 0, sizeof(fb)); }
static void fb_set_px(int x, int y, int on) {
@@ -104,8 +101,8 @@ static const uint8_t font5x7_digits[][5] = {
{0x3C,0x4A,0x49,0x49,0x30},{0x01,0x71,0x09,0x05,0x03},
{0x36,0x49,0x49,0x49,0x36},{0x06,0x49,0x49,0x29,0x1E}
};
static const uint8_t font_colon[5] = {0x00,0x36,0x36,0x00,0x00};
static const uint8_t font_colon[5] = {0x00,0x36,0x36,0x00,0x00};
static const uint8_t font_E[5]={0x7F,0x49,0x49,0x49,0x41};
static const uint8_t font_D[5]={0x7F,0x41,0x41,0x22,0x1C};
static const uint8_t font_I[5]={0x00,0x41,0x7F,0x41,0x00};
@@ -122,9 +119,6 @@ static const uint8_t font_P[5]={0x7F,0x09,0x09,0x09,0x06};
static const uint8_t font_A[5]={0x7E,0x09,0x09,0x09,0x7E};
static const uint8_t font_B[5]={0x7F,0x49,0x49,0x49,0x36};
static const uint8_t font_a[5]={0x20,0x54,0x54,0x54,0x78};
static const uint8_t font_c[5]={0x38,0x44,0x44,0x44,0x20};
static const uint8_t font_d[5]={0x38,0x44,0x44,0x48,0x7F};
@@ -143,13 +137,11 @@ static const uint8_t font_t[5]={0x04,0x3F,0x44,0x40,0x20};
static const uint8_t font_u[5]={0x3C,0x40,0x40,0x20,0x7C};
static const uint8_t font_w[5]={0x3C,0x40,0x30,0x40,0x3C};
static const uint8_t font_y[5]={0x0C,0x50,0x50,0x50,0x3C};
static const uint8_t font_space[5] = {0,0,0,0,0};
static const uint8_t font_space[5] = {0,0,0,0,0};
static const uint8_t font_percent[5] = {0x23, 0x13, 0x08, 0x64, 0x62};
static const uint8_t font_deg[5] = {0x06, 0x09, 0x09, 0x06, 0x00};
static const uint8_t font_dot[5] = {0x00,0x60,0x60,0x00,0x00};
static const uint8_t icon_good[8] = { 0x3C,0x42,0xA5,0x81,0xA5,0x99,0x42,0x3C };
static const uint8_t icon_Mild[8] = { 0x3C,0x42,0xA5,0x81,0xBD,0x81,0x42,0x3C };
static const uint8_t icon_bad[8] = { 0x3C,0x42,0xA5,0x81,0x99,0xA5,0x42,0x3C };
@@ -165,7 +157,6 @@ static const uint8_t* glyph_for_char(char c) {
if (c=='M') return font_M; if (c=='S') return font_S; if (c=='G') return font_G;
if (c=='P') return font_P; if (c=='A') return font_A; if (c=='B') return font_B;
if (c=='a') return font_a; if (c=='c') return font_c; if (c=='d') return font_d;
if (c=='e') return font_e; if (c=='g') return font_g; if (c=='h') return font_h;
if (c=='i') return font_i; if (c=='l') return font_l; if (c=='m') return font_m;
@@ -242,6 +233,7 @@ static void fb_draw_circle(int cx,int cy,int r,int filled){
}
}
}
static void draw_page_dots(int page){
int cy=60,r=3;
int cx1=OLED_W/2-15;
@@ -301,14 +293,14 @@ int main(void) {
fb_clear();
draw_page_dots(page);
if (page==0) {
if (strcmp(mode,"EDIT")==0)
if (strcmp(mode,"EDIT")==0) {
fb_draw_text(0,0,"EDIT",1,1);
else
} else {
fb_draw_text(0,0,"RUN",1,1);
}
if (strcmp(mode,"EDIT")==0) {
char hs[3], ms[3], ss_s[3];
sprintf(hs,"%02d",hh);
@@ -325,10 +317,7 @@ int main(void) {
sprintf(ts,"%02d:%02d:%02d",hh,mm,ss);
fb_draw_text(10,18,ts,2,2);
}
}
else if (page==1) {
} else if (page==1) {
const int num_x=92;
fb_draw_text(0,0,"Today Weather",1,1);
@@ -337,29 +326,32 @@ int main(void) {
char tstr[8], hstr[8];
if (cur_temp >= 0) sprintf(tstr,"%02d",cur_temp);
else strcpy(tstr,"--");
if (cur_hum >= 0) sprintf(hstr,"%02d",cur_hum);
else strcpy(hstr,"--");
if (cur_temp >= 0) {
sprintf(tstr,"%02d",cur_temp);
} else {
strcpy(tstr,"--");
}
if (cur_hum >= 0) {
sprintf(hstr,"%02d",cur_hum);
} else {
strcpy(hstr,"--");
}
fb_draw_text(num_x,16,tstr,2,2);
fb_draw_text(num_x+22,16,"\xB0",1,1);
fb_draw_text(num_x+30,16,"C",1,1);
fb_draw_text(num_x,34,hstr,2,2);
fb_draw_text(num_x+24,34,"%",1,1);
}
else {
} else {
int di=-1;
if (cur_temp >= 0 && cur_hum >= 0)
if (cur_temp >= 0 && cur_hum >= 0) {
di = (int)(0.81*cur_temp + 0.01*cur_hum*(0.99*cur_temp-14.3) + 46.3);
}
fb_draw_text(0,0,"DI PAGE",1,1);
char di_str[8];
if (di>=0) sprintf(di_str,"%02d",di);
else strcpy(di_str,"--");
@@ -367,34 +359,29 @@ int main(void) {
fb_draw_text(0,20,"DI:",2,2);
fb_draw_text(40,20,di_str,2,2);
if (di >= 0) {
int led = di_to_led(di);
set_led_level(led);
if (di >= 0) {
int led = di_to_led(di);
set_led_level(led);
}
if (di < 0) {
fb_draw_text(40,14,"--",2,2);
fb_draw_text(0,36,"No Data",2,2);
} else if (di < 68) {
fb_draw_icon8(90,20,icon_good,2);
fb_draw_text(0,36,"Good",2,2);
} else if (di < 75) {
fb_draw_icon8(90,20,icon_Mild,2);
fb_draw_text(0,36,"Mild",2,2);
} else if (di < 80) {
fb_draw_icon8(90,20,icon_bad,2);
fb_draw_text(0,36,"Bad",2,2);
} else {
fb_draw_icon8(90,20,icon_hot,2);
fb_draw_text(0,36,"Hot",2,2);
}
}
if (di < 0) {
fb_draw_text(40,14,"--",2,2);
fb_draw_text(0,36,"No Data",2,2);
}
else if (di < 68) {
fb_draw_icon8(90,20,icon_good,2);
fb_draw_text(0,36,"Good",2,2);
}
else if (di < 75) {
fb_draw_icon8(90,20,icon_Mild,2);
fb_draw_text(0,36,"Mild",2,2);
}
else if (di < 80) {
fb_draw_icon8(90,20,icon_bad,2);
fb_draw_text(0,36,"Bad",2,2);
}
else {
fb_draw_icon8(90,20,icon_hot,2);
fb_draw_text(0,36,"Hot",2,2);
}
}
oled_flush();
blink = !blink;
prev_page = page;