#include "SDL.h"Go to the source code of this file.
| Data Structures | |
| struct | FPSmanager | 
| Structure holding the state and timing information of the framerate controller.  More... | |
| Defines | |
| #define | FPS_UPPER_LIMIT 200 | 
| Highest possible rate supported by framerate controller in Hz (1/s). | |
| #define | FPS_LOWER_LIMIT 1 | 
| Lowest possible rate supported by framerate controller in Hz (1/s). | |
| #define | FPS_DEFAULT 30 | 
| Default rate of framerate controller in Hz (1/s). | |
| Functions | |
| SDL_FRAMERATE_SCOPE void | SDL_initFramerate (FPSmanager *manager) | 
| Initialize the framerate manager. | |
| SDL_FRAMERATE_SCOPE int | SDL_setFramerate (FPSmanager *manager, Uint32 rate) | 
| Set the framerate in Hz. | |
| SDL_FRAMERATE_SCOPE int | SDL_getFramerate (FPSmanager *manager) | 
| Return the current target framerate in Hz. | |
| SDL_FRAMERATE_SCOPE int | SDL_getFramecount (FPSmanager *manager) | 
| Return the current framecount. | |
| SDL_FRAMERATE_SCOPE void | SDL_framerateDelay (FPSmanager *manager) | 
| Delay execution to maintain a constant framerate and calculate fps. | |
| #define FPS_DEFAULT 30 | 
Default rate of framerate controller in Hz (1/s).
Definition at line 37 of file SDL_framerate.h.
| #define FPS_LOWER_LIMIT 1 | 
Lowest possible rate supported by framerate controller in Hz (1/s).
Definition at line 32 of file SDL_framerate.h.
| #define FPS_UPPER_LIMIT 200 | 
Highest possible rate supported by framerate controller in Hz (1/s).
Definition at line 27 of file SDL_framerate.h.
| SDL_FRAMERATE_SCOPE void SDL_framerateDelay | ( | FPSmanager * | manager | ) | 
Delay execution to maintain a constant framerate and calculate fps.
Generate a delay to accomodate currently set framerate. Call once in the graphics/rendering loop. If the computer cannot keep up with the rate (i.e. drawing too slow), the delay is zero and the delay interpolation is reset.
| manager | Pointer to the framerate manager. | 
Definition at line 99 of file SDL_framerate.c.
| SDL_FRAMERATE_SCOPE int SDL_getFramecount | ( | FPSmanager * | manager | ) | 
Return the current framecount.
Get the current framecount from the framerate manager. A frame is counted each time SDL_framerateDelay is called.
| manager | Pointer to the framerate manager. | 
Definition at line 81 of file SDL_framerate.c.
| SDL_FRAMERATE_SCOPE int SDL_getFramerate | ( | FPSmanager * | manager | ) | 
Return the current target framerate in Hz.
Get the currently set framerate of the manager.
| manager | Pointer to the framerate manager. | 
Definition at line 62 of file SDL_framerate.c.
| SDL_FRAMERATE_SCOPE void SDL_initFramerate | ( | FPSmanager * | manager | ) | 
Initialize the framerate manager.
Initialize the framerate manager, set default framerate of 30Hz and reset delay interpolation.
| manager | Pointer to the framerate manager. | 
Definition at line 19 of file SDL_framerate.c.
| SDL_FRAMERATE_SCOPE int SDL_setFramerate | ( | FPSmanager * | manager, | |
| Uint32 | rate | |||
| ) | 
Set the framerate in Hz.
Sets a new framerate for the manager and reset delay interpolation. Rate values must be between FPS_LOWER_LIMIT and FPS_UPPER_LIMIT inclusive to be accepted.
| manager | Pointer to the framerate manager. | |
| rate | The new framerate in Hz (frames per second). | 
Definition at line 41 of file SDL_framerate.c.
 1.6.2
 1.6.2