diff options
| author | Matthias Melcher <github@matthiasm.com> | 2023-02-09 14:48:39 +0100 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2023-02-09 14:48:39 +0100 |
| commit | ffadc23cab725828a3a38646d3efa10bd551f7b2 (patch) | |
| tree | 404e9a3326bfde284960e16a0e8fd63f320c6c64 /FL | |
| parent | 880fc26857d068789119ac79acf58b57c7d94b9e (diff) | |
Expose elapsed time API (#670)
Diffstat (limited to 'FL')
| -rw-r--r-- | FL/Fl.H | 7 | ||||
| -rw-r--r-- | FL/platform_types.h | 21 |
2 files changed, 28 insertions, 0 deletions
@@ -470,6 +470,13 @@ public: static void add_check(Fl_Timeout_Handler, void* = 0); static int has_check(Fl_Timeout_Handler, void* = 0); static void remove_check(Fl_Timeout_Handler, void* = 0); + + static Fl_Timestamp now(); + static double seconds_since(Fl_Timestamp& then); + static double seconds_between(Fl_Timestamp& back, Fl_Timestamp& further_back); + static long ticks_since(Fl_Timestamp& then); + static long ticks_between(Fl_Timestamp& back, Fl_Timestamp& further_back); + // private static void run_idle(); static void run_checks(); diff --git a/FL/platform_types.h b/FL/platform_types.h index b55544d4c..421a0b7c6 100644 --- a/FL/platform_types.h +++ b/FL/platform_types.h @@ -12,6 +12,9 @@ * https://www.fltk.org/bugs.php */ +#ifndef Fl_Platform_Types_H +#define Fl_Platform_Types_H + /** \file Definitions of platform-dependent types. The exact nature of these types varies with the platform. @@ -62,6 +65,13 @@ typedef opaque FL_SOCKET; /**< socket or file descriptor */ */ typedef struct opaque *GLContext; +/** + Platform-specific point in time, used for delta time calculation. + \note This type may be a struct. sizeof(Fl_Timestamp) may be different on + different platforms. Fl_Timestamp may change with future ABI changes. + */ +typedef opaque Fl_Timestamp; + # define FL_COMMAND opaque /**< An alias for FL_CTRL on Windows and X11, or FL_META on MacOS X */ # define FL_CONTROL opaque /**< An alias for FL_META on Windows and X11, or FL_CTRL on MacOS X */ @@ -127,4 +137,15 @@ extern FL_EXPORT int fl_control_modifier(); #endif /* FL_PLATFORM_TYPES_H */ +// This is currently the same for all platforms, but may change in the future +struct Fl_Timestamp_t { + long sec; + long usec; +}; + +typedef struct Fl_Timestamp_t Fl_Timestamp; + #endif /* FL_DOXYGEN */ + +#endif /* Fl_Platform_Types_H */ + |