remove time stuff from core

src/app/app_wasm.c

@@ -45,8 +45,8 @@ glb_wasm_export i32  wasm_temp_buff2_len  = 127;
 global f64                    wasm_dpr;
 global f64                    wasm_delta_time;
 global f64                    wasm_time;
-global f64                    wasm_last_time_milliseconds;
-global f64                    wasm_app_init_time_milliseconds;
+global f64                    wasm_last_time;
+global f64                    wasm_app_init_time;
 global app_event_list_t       wasm_event_list;
 
 typedef struct wasm_cached_t wasm_cached_t;
@@ -178,9 +178,13 @@ fn_wasm_export void wasm_key_up(char *key, b32 ctrl, b32 shift, b32 alt, b32 met
     }
 }
 
+fn f64 wasm_seconds_now(void) {
+    return wasm_get_milliseconds() / 1000.0;
+}
+
 fn_wasm_export void wasm_update(f64 width, f64 height, f64 dpr) {
-    wasm_time = os_milliseconds_now();
-    wasm_delta_time = wasm_time - wasm_last_time_milliseconds;
+    wasm_time = wasm_seconds_now();
+    wasm_delta_time = wasm_time - wasm_last_time;
 
     v2f64_t window_size = (v2f64_t){width / dpr, height / dpr};
     wasm_dpr = dpr;
@@ -205,13 +209,13 @@ fn_wasm_export void wasm_update(f64 width, f64 height, f64 dpr) {
 
     ma_set0(tcx.temp);
     zero_struct(&wasm_event_list);
-    wasm_last_time_milliseconds = wasm_time;
+    wasm_last_time = wasm_time;
 }
 
 fn_wasm_export void wasm_init(void) {
     core_init();
     app_init();
-    wasm_app_init_time_milliseconds = os_milliseconds_now();
+    wasm_app_init_time = wasm_seconds_now();
 }
 
 fn f64 app_get_anim_time(void) {

src/app/app_win32.c

@@ -236,6 +236,20 @@ void w32_try_resizing_canvas(w32_canvas_t *canvas, HWND window_handle) {
     }
 }
 
+fn f64 os_seconds_now(void) {
+    static int64_t counts_per_second;
+    if (counts_per_second == 0) {
+        LARGE_INTEGER freq;
+        QueryPerformanceFrequency(&freq);
+        counts_per_second = freq.QuadPart;
+    }
+
+    LARGE_INTEGER time;
+    QueryPerformanceCounter(&time);
+    f64 result = (f64)time.QuadPart / (f64)counts_per_second;
+    return result;
+}
+
 int WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nShowCmd) {
     tcx.temp = ma_create(ma_default_reserve_size);