From 27b5aa8289330bc7b9f3499bf98a84f0127f4899 Mon Sep 17 00:00:00 2001 From: pommicket Date: Sun, 23 Feb 2025 13:52:44 -0500 Subject: separate video stuff into its own file --- util.h | 37 +++++++++++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+) create mode 100644 util.h (limited to 'util.h') diff --git a/util.h b/util.h new file mode 100644 index 0000000..4db637a --- /dev/null +++ b/util.h @@ -0,0 +1,37 @@ +#include +#include +#include +#include +#include +#include "ds.h" + +static char *va_sprintf(const char *fmt, va_list args) { + va_list args_copy; + va_copy(args_copy, args); + char fakebuf[2] = {0}; + int ret = vsnprintf(fakebuf, 1, fmt, args_copy); + va_end(args_copy); + + if (ret < 0) return NULL; // bad format or something + size_t n = (size_t)ret; + char *str = calloc(1, n + 1); + vsnprintf(str, n + 1, fmt, args); + return str; +} + +static char *a_sprintf(PRINTF_FORMAT_STRING const char *fmt, ...) ATTRIBUTE_PRINTF(1, 2); +static char *a_sprintf(const char *fmt, ...) { + // idk if you can always just pass NULL to vsnprintf + va_list args; + va_start(args, fmt); + char *str = va_sprintf(fmt, args); + va_end(args); + return str; +} + + +static double get_time_double(void) { + struct timespec ts = {0}; + clock_gettime(CLOCK_MONOTONIC, &ts); + return (double)ts.tv_sec + (double)ts.tv_nsec * 1e-9; +} -- cgit v1.2.3