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added cpu usage to minarch debug hud

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This commit is contained in:
Shaun Inman 2023-01-21 19:05:14 -05:00
parent d0d87e4a00
commit bd615423f6
1 changed files with 57 additions and 16 deletions
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63
src/minarch/main.c
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@ -589,20 +589,23 @@ static bool environment_callback(unsigned cmd, void *data) { // copied from pico
// TODO: tmp? rename this HUD_*? support messages too?
SDL_Surface* digits;
#define DIGIT_WIDTH 14
#define DIGIT_WIDTH 18
#define DIGIT_HEIGHT 16
#define DIGIT_TRACKING -4
enum {
DIGIT_SLASH = 10,
DIGIT_DOT,
DIGIT_PERCENT,
DIGIT_COUNT,
};
#define DIGIT_SPACE DIGIT_COUNT
static void FPS_init(void) {
// TODO: scale
digits = SDL_CreateRGBSurface(SDL_SWSURFACE,DIGIT_WIDTH*DIGIT_COUNT,DIGIT_HEIGHT,SCREEN_DEPTH, 0,0,0,0);
SDL_FillRect(digits, NULL, RGB_BLACK);
SDL_Surface* digit;
char* chars[] = { "0","1","2","3","4","5","6","7","8","9","/",".", NULL };
char* chars[] = { "0","1","2","3","4","5","6","7","8","9","/",".","%", NULL };
char* c;
int i = 0;
while (c = chars[i]) {
@ -613,8 +616,8 @@ static void FPS_init(void) {
}
}
static int FPS_blitChar(int n, int x, int y) {
SDL_BlitSurface(digits, &(SDL_Rect){n*DIGIT_WIDTH,0,DIGIT_WIDTH,DIGIT_HEIGHT}, screen, &(SDL_Rect){x,y});
return x + DIGIT_WIDTH;
if (n!=DIGIT_SPACE) SDL_BlitSurface(digits, &(SDL_Rect){n*DIGIT_WIDTH,0,DIGIT_WIDTH,DIGIT_HEIGHT}, screen, &(SDL_Rect){x,y});
return x + DIGIT_WIDTH + DIGIT_TRACKING;
}
static int FPS_blitDouble(double num, int x, int y) {
int i = num;
@ -664,8 +667,10 @@ static void FPS_quit(void) {
static int cpu_ticks = 0;
static int fps_ticks = 0;
static int use_ticks = 0;
static double fps_double = 0;
static double cpu_double = 0;
static double use_double = 0;
static uint32_t sec_start = 0;
// TODO: flesh out
@ -1266,12 +1271,19 @@ static void video_refresh_callback(const void *data, unsigned width, unsigned he
if (frame>=fps) frame -= fps;
}
if (1) {
int x = 0;
int y = SCREEN_HEIGHT - DIGIT_HEIGHT;
if (fps_double) x = FPS_blitDouble(fps_double, x,y);
if (cpu_double) {
x = FPS_blitChar(DIGIT_SLASH,x,y);
FPS_blitDouble(cpu_double, x,y);
x = FPS_blitDouble(cpu_double, x,y);
}
if (use_double) {
x = FPS_blitChar(DIGIT_SPACE,x,y);
x = FPS_blitDouble(use_double, x,y);
FPS_blitChar(DIGIT_PERCENT,x,y);
}
}
GFX_flip(screen);
@ -1308,9 +1320,6 @@ static int ignore_menu = 0;
static void input_poll_callback(void) {
PAD_poll();
// TODO: too heavy? maybe but regardless,
// this will cause it to go to sleep after
// 30 seconds--even while playing!
@ -1934,6 +1943,30 @@ void Menu_loop(void) {
POW_disableAutosleep();
}
unsigned getUsage(void) { // from picoarch
long unsigned ticks = 0;
long ticksps = 0;
FILE *file = NULL;
file = fopen("/proc/self/stat", "r");
if (!file)
goto finish;
if (!fscanf(file, "%*d %*s %*c %*d %*d %*d %*d %*d %*u %*u %*u %*u %*u %lu", &ticks))
goto finish;
ticksps = sysconf(_SC_CLK_TCK);
if (ticksps)
ticks = ticks * 100 / ticksps;
finish:
if (file)
fclose(file);
return ticks;
}
int main(int argc , char* argv[]) {
// force a stack overflow to ensure asan is linked and actually working
// char tmp[2];
@ -1978,14 +2011,22 @@ int main(int argc , char* argv[]) {
if (1) {
cpu_ticks += 1;
static int last_use_ticks = 0;
uint32_t now = SDL_GetTicks();
if (now - sec_start>=1000) {
fps_double = fps_ticks / ((double)(now - sec_start) / 1000);
cpu_double = cpu_ticks / ((double)(now - sec_start) / 1000);
// printf("fps: %f (%f)\n", fps_double, cpu_double); fflush(stdout);
double last_time = (double)(now - sec_start) / 1000;
fps_double = fps_ticks / last_time;
cpu_double = cpu_ticks / last_time;
use_ticks = getUsage();
if (use_ticks && last_use_ticks) {
use_double = (use_ticks - last_use_ticks) / last_time;
}
last_use_ticks = use_ticks;
sec_start = now;
cpu_ticks = 0;
fps_ticks = 0;
// printf("fps: %f (%f)\n", fps_double, cpu_double); fflush(stdout);
}
}
}