don't assume first frame happens at 0 ticks

This commit is contained in:
fgsfds 2020-07-10 15:44:58 +03:00
parent 5c7de32a7c
commit 5aaa4e399a
1 changed files with 2 additions and 0 deletions

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@ -328,6 +328,8 @@ static bool gfx_sdl_start_frame(void) {
static inline void sync_framerate_with_timer(void) {
static Uint32 last_time = 0;
// get base timestamp on the first frame (might be different from 0)
if (last_time == 0) last_time = SDL_GetTicks();
const int elapsed = SDL_GetTicks() - last_time;
if (elapsed < frame_time)
SDL_Delay(frame_time - elapsed);