From dcc5c7ee607aa811f3c9893710c895abb9dd2c2c Mon Sep 17 00:00:00 2001 From: Andrei Karas Date: Tue, 3 Sep 2013 00:02:25 +0300 Subject: add missing files. --- src/sdl2gfx/SDL_rotozoom.h | 123 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 123 insertions(+) create mode 100644 src/sdl2gfx/SDL_rotozoom.h (limited to 'src/sdl2gfx/SDL_rotozoom.h') diff --git a/src/sdl2gfx/SDL_rotozoom.h b/src/sdl2gfx/SDL_rotozoom.h new file mode 100644 index 000000000..f4c236ba4 --- /dev/null +++ b/src/sdl2gfx/SDL_rotozoom.h @@ -0,0 +1,123 @@ +/* + +SDL2_rotozoom.c: rotozoomer, zoomer and shrinker for 32bit or 8bit surfaces + +Copyright (C) 2001-2012 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_rotozoom_h +#define _SDL2_rotozoom_h + +#include + +/* Set up for C function definitions, even when using C++ */ +#ifdef __cplusplus +extern "C" { +#endif + +#ifndef M_PI +#define M_PI 3.1415926535897932384626433832795 +#endif + +#include "SDL.h" + + /* ---- Defines */ + + /*! + \brief Disable anti-aliasing (no smoothing). + */ +#define SMOOTHING_OFF 0 + + /*! + \brief Enable anti-aliasing (smoothing). + */ +#define SMOOTHING_ON 1 + + /* ---- Function Prototypes */ + +#ifdef _MSC_VER +# if defined(DLL_EXPORT) && !defined(LIBSDL2_GFX_DLL_IMPORT) +# define SDL2_ROTOZOOM_SCOPE __declspec(dllexport) +# else +# ifdef LIBSDL2_GFX_DLL_IMPORT +# define SDL2_ROTOZOOM_SCOPE __declspec(dllimport) +# endif +# endif +#endif +#ifndef SDL2_ROTOZOOM_SCOPE +# define SDL2_ROTOZOOM_SCOPE extern +#endif + + /* + + Rotozoom functions + + */ + + SDL2_ROTOZOOM_SCOPE SDL_Surface *rotozoomSurface(SDL_Surface * src, double angle, double zoom, int smooth); + + SDL2_ROTOZOOM_SCOPE SDL_Surface *rotozoomSurfaceXY + (SDL_Surface * src, double angle, double zoomx, double zoomy, int smooth); + + + SDL2_ROTOZOOM_SCOPE void rotozoomSurfaceSize(int width, int height, double angle, double zoom, int *dstwidth, + int *dstheight); + + SDL2_ROTOZOOM_SCOPE void rotozoomSurfaceSizeXY + (int width, int height, double angle, double zoomx, double zoomy, + int *dstwidth, int *dstheight); + + /* + + Zooming functions + + */ + + SDL2_ROTOZOOM_SCOPE SDL_Surface *zoomSurface(SDL_Surface * src, double zoomx, double zoomy, int smooth); + + SDL2_ROTOZOOM_SCOPE void zoomSurfaceSize(int width, int height, double zoomx, double zoomy, int *dstwidth, int *dstheight); + + /* + + Shrinking functions + + */ + + SDL2_ROTOZOOM_SCOPE SDL_Surface *shrinkSurface(SDL_Surface * src, int factorx, int factory); + + /* + + Specialized rotation functions + + */ + + SDL2_ROTOZOOM_SCOPE SDL_Surface* rotateSurface90Degrees(SDL_Surface* src, int numClockwiseTurns); + + /* Ends C function definitions when using C++ */ +#ifdef __cplusplus +} +#endif + +#endif /* _SDL2_rotozoom_h */ -- cgit v1.2.3-70-g09d2