Mercurial > sdl-ios-xcode
diff include/SDL_video.h @ 1735:8dd28c4ef746 SDL-1.3
SDL_Rect now uses int for position and size.
Added a few more rectangle functions.
Added a dirty rectangle list implementation.
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Mon, 10 Jul 2006 07:34:50 +0000 |
parents | f7c667ded87d |
children |
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--- a/include/SDL_video.h Sun Jul 09 18:09:16 2006 +0000 +++ b/include/SDL_video.h Mon Jul 10 07:34:50 2006 +0000 @@ -53,8 +53,8 @@ */ typedef struct SDL_Rect { - Sint16 x, y; - Uint16 w, h; + int x, y; + int w, h; } SDL_Rect; /** @@ -177,7 +177,8 @@ SDL_Renderer_PresentVSync = 0x00000010, /**< Present is synchronized with the refresh rate */ SDL_Renderer_RenderTarget = 0x00000020, /**< The renderer can create texture render targets */ SDL_Renderer_Accelerated = 0x00000040, /**< The renderer uses hardware acceleration */ - SDL_Renderer_Minimal = 0x00000080, /**< The renderer only supports the read/write pixel and present functions */ + SDL_Renderer_ = 0x00000080, /**< The renderer uses hardware acceleration */ + SDL_Renderer_Minimal = 0x00000100, /**< The renderer only supports the read/write pixel and present functions */ } SDL_RendererFlags; /** @@ -1525,12 +1526,50 @@ */ extern DECLSPEC void SDLCALL SDL_GL_DeleteContext(SDL_GLContext context); -/* - * Calculate the intersection of two rectangles +/** + * \def SDL_RectEmpty() + * + * \brief Returns true if the rectangle has no area. + */ +#define SDL_RectEmpty(X) (((X)->w <= 0) || ((X)->h <= 0)) + +/** + * \def SDL_RectEquals() + * + * \brief Returns true if the two rectangles are equal. + */ +#define SDL_RectEquals(A, B) (((A)->x == (B)->x) && ((A)->y == (B)->y) && \ + ((A)->w == (B)->w) && ((A)->h == (B)->h)) + +/** + * \fn SDL_bool SDL_HasIntersection(const SDL_Rect * A, const SDL_Rect * B); + * + * \brief Determine whether two rectangles intersect. + * + * \return SDL_TRUE if there is an intersection, SDL_FALSE otherwise. + */ +extern DECLSPEC SDL_bool SDLCALL SDL_HasIntersection(const SDL_Rect * A, + const SDL_Rect * B); + +/** + * \fn SDL_bool SDL_IntersectRect(const SDL_Rect * A, const SDL_Rect * B, SDL_Rect * result) + * + * \brief Calculate the intersection of two rectangles. + * + * \return SDL_TRUE if there is an intersection, SDL_FALSE otherwise. */ extern DECLSPEC SDL_bool SDLCALL SDL_IntersectRect(const SDL_Rect * A, const SDL_Rect * B, - SDL_Rect * intersection); + SDL_Rect * result); + +/** + * \fn void SDL_UnionRect(const SDL_Rect * A, const SDL_Rect * B, SDL_Rect * result) + * + * \brief Calculate the union of two rectangles + */ +extern DECLSPEC void SDLCALL SDL_UnionRect(const SDL_Rect * A, + const SDL_Rect * B, + SDL_Rect * result); /* Ends C function definitions when using C++ */ #ifdef __cplusplus