git.r.bdr.sh / rbdr / pico-engine / blame
| Commit | Line | Data |
|---|---|---|
| 10a0e290 BB |
1 | |
| 2 | /* | |
| 3 | ||
| 4 | SDL_framerate: framerate manager | |
| 5 | ||
| 6 | LGPL (c) A. Schiffler | |
| 7 | ||
| 8 | */ | |
| 9 | ||
| 10 | #ifndef _SDL_framerate_h | |
| 11 | #define _SDL_framerate_h | |
| 12 | ||
| 13 | /* Set up for C function definitions, even when using C++ */ | |
| 14 | #ifdef __cplusplus | |
| 15 | extern "C" { | |
| 16 | #endif | |
| 17 | ||
| 18 | /* --- */ | |
| 19 | ||
| 20 | #include "SDL.h" | |
| 21 | ||
| 22 | /* --------- Definitions */ | |
| 23 | ||
| 24 | /* Some rates in Hz */ | |
| 25 | ||
| 26 | #define FPS_UPPER_LIMIT 200 | |
| 27 | #define FPS_LOWER_LIMIT 1 | |
| 28 | #define FPS_DEFAULT 30 | |
| 29 | ||
| 30 | /* --------- Structure variables */ | |
| 31 | ||
| 32 | typedef struct { | |
| 33 | Uint32 framecount; | |
| 34 | float rateticks; | |
| 35 | Uint32 lastticks; | |
| 36 | Uint32 rate; | |
| 37 | } FPSmanager; | |
| 38 | ||
| 39 | /* --------- Function prototypes */ | |
| 40 | ||
| 41 | #ifdef WIN32 | |
| 42 | #ifdef BUILD_DLL | |
| 43 | #define DLLINTERFACE __declspec(dllexport) | |
| 44 | #else | |
| 45 | #define DLLINTERFACE __declspec(dllimport) | |
| 46 | #endif | |
| 47 | #else | |
| 48 | #define DLLINTERFACE | |
| 49 | #endif | |
| 50 | ||
| 51 | /* Functions return 0 or value for sucess and -1 for error */ | |
| 52 | ||
| 53 | DLLINTERFACE void SDL_initFramerate(FPSmanager * manager); | |
| 54 | DLLINTERFACE int SDL_setFramerate(FPSmanager * manager, int rate); | |
| 55 | DLLINTERFACE int SDL_getFramerate(FPSmanager * manager); | |
| 56 | DLLINTERFACE void SDL_framerateDelay(FPSmanager * manager); | |
| 57 | ||
| 58 | /* --- */ | |
| 59 | ||
| 60 | /* Ends C function definitions when using C++ */ | |
| 61 | #ifdef __cplusplus | |
| 62 | } | |
| 63 | #endif | |
| 64 | ||
| 65 | #endif /* _SDL_framerate_h */ |