From 102a7d4fe6e8874ad7dcdfe085a22b51de22999b Mon Sep 17 00:00:00 2001 From: Andrei Karas Date: Tue, 5 Nov 2013 20:56:20 +0300 Subject: add configure option --without-internalsdlgfx for not use emdedded sdl2gfx. --- src/sdl2gfx/SDL2_framerate.h | 103 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 103 insertions(+) create mode 100644 src/sdl2gfx/SDL2_framerate.h (limited to 'src/sdl2gfx/SDL2_framerate.h') diff --git a/src/sdl2gfx/SDL2_framerate.h b/src/sdl2gfx/SDL2_framerate.h new file mode 100644 index 000000000..a2e62e944 --- /dev/null +++ b/src/sdl2gfx/SDL2_framerate.h @@ -0,0 +1,103 @@ +/* + +SDL2_framerate.h: framerate manager + +Copyright (C) 2012 Andreas Schiffler + +This software is provided 'as-is', without any express or implied +warranty. In no event will the authors be held liable for any damages +arising from the use of this software. + +Permission is granted to anyone to use this software for any purpose, +including commercial applications, and to alter it and redistribute it +freely, subject to the following restrictions: + +1. The origin of this software must not be misrepresented; you must not +claim that you wrote the original software. If you use this software +in a product, an acknowledgment in the product documentation would be +appreciated but is not required. + +2. Altered source versions must be plainly marked as such, and must not be +misrepresented as being the original software. + +3. This notice may not be removed or altered from any source +distribution. + +Andreas Schiffler -- aschiffler at ferzkopp dot net + +*/ + +#ifndef _SDL2_framerate_h +#define _SDL2_framerate_h + +/* Set up for C function definitions, even when using C++ */ +#ifdef __cplusplus +extern "C" { +#endif + + /* --- */ + +#include "SDL.h" + + /* --------- Definitions */ + + /*! + \brief Highest possible rate supported by framerate controller in Hz (1/s). + */ +#define FPS_UPPER_LIMIT 200 + + /*! + \brief Lowest possible rate supported by framerate controller in Hz (1/s). + */ +#define FPS_LOWER_LIMIT 1 + + /*! + \brief Default rate of framerate controller in Hz (1/s). + */ +#define FPS_DEFAULT 30 + + /*! + \brief Structure holding the state and timing information of the framerate controller. + */ + typedef struct + { + uint32_t framecount; + float rateticks; + uint32_t baseticks; + uint32_t lastticks; + uint32_t rate; + } FPSmanager; + + /* ---- Function Prototypes */ + +#ifdef _MSC_VER +# if defined(DLL_EXPORT) && !defined(LIBSDL2_GFX_DLL_IMPORT) +# define SDL2_FRAMERATE_SCOPE __declspec(dllexport) +# else +# ifdef LIBSDL2_GFX_DLL_IMPORT +# define SDL2_FRAMERATE_SCOPE __declspec(dllimport) +# endif +# endif +#endif +#ifndef SDL2_FRAMERATE_SCOPE +# define SDL2_FRAMERATE_SCOPE extern +#endif + + /* Functions return 0 or value for sucess and -1 for error */ + + SDL2_FRAMERATE_SCOPE void SDL_initFramerate(FPSmanager *const manager); + SDL2_FRAMERATE_SCOPE int SDL_setFramerate(FPSmanager *const manager, + const uint32_t rate); + SDL2_FRAMERATE_SCOPE int SDL_getFramerate(FPSmanager *const manager); + SDL2_FRAMERATE_SCOPE int SDL_getFramecount(FPSmanager *const manager); + SDL2_FRAMERATE_SCOPE uint32_t SDL_framerateDelay(FPSmanager *const + manager); + + /* --- */ + + /* Ends C function definitions when using C++ */ +#ifdef __cplusplus +} +#endif + +#endif /* _SDL2_framerate_h */ -- cgit v1.2.3-60-g2f50