diff options
Diffstat (limited to 'src/video/sdl_v.cpp')
| -rw-r--r-- | src/video/sdl_v.cpp | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/src/video/sdl_v.cpp b/src/video/sdl_v.cpp index cc6555461..fa0294200 100644 --- a/src/video/sdl_v.cpp +++ b/src/video/sdl_v.cpp @@ -649,7 +649,7 @@ void VideoDriver_SDL::Stop() void VideoDriver_SDL::MainLoop() { auto cur_ticks = std::chrono::steady_clock::now(); - auto last_cur_ticks = cur_ticks; + auto last_realtime_tick = cur_ticks; auto next_tick = cur_ticks; uint32 mod; int numkeys; @@ -719,9 +719,15 @@ void VideoDriver_SDL::MainLoop() } cur_ticks = std::chrono::steady_clock::now(); + + /* If more than a millisecond has passed, increase the _realtime_tick. */ + if (cur_ticks - last_realtime_tick > std::chrono::milliseconds(1)) { + auto delta = std::chrono::duration_cast<std::chrono::milliseconds>(cur_ticks - last_realtime_tick); + _realtime_tick += delta.count(); + last_realtime_tick += delta; + } + if (cur_ticks >= next_tick || (_fast_forward && !_pause_mode)) { - _realtime_tick += std::chrono::duration_cast<std::chrono::milliseconds>(cur_ticks - last_cur_ticks).count(); - last_cur_ticks = cur_ticks; next_tick = cur_ticks + std::chrono::milliseconds(MILLISECONDS_PER_TICK); bool old_ctrl_pressed = _ctrl_pressed; |