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OpenSolaris 2009.06 - man page for sdl_surface (opensolaris section 3)

SDL_Surface(3)							 SDL API Reference						    SDL_Surface(3)

SDL_Surface - Graphical Surface Structure
typedef struct SDL_Surface { Uint32 flags; /* Read-only */ SDL_PixelFormat *format; /* Read-only */ int w, h; /* Read-only */ Uint16 pitch; /* Read-only */ void *pixels; /* Read-write */ /* clipping information */ SDL_Rect clip_rect; /* Read-only */ /* Reference count -- used when freeing surface */ int refcount; /* Read-mostly */ /* This structure also contains private fields not shown here */ } SDL_Surface;
flags Surface flags format Pixel format w, h Width and height of the surface pitch Length of a surface scanline in bytes pixels Pointer to the actual pixel data clip_rect surface clip rectangle
SDL_Surface's represent areas of "graphical" memory, memory that can be drawn to. The video framebuffer is returned as a SDL_Surface by SDL_SetVideoMode and SDL_GetVideoSurface. Most of the fields should be pretty obvious. w and h are the width and height of the surface in pixels. pixels is a pointer to the actual pixel data, the surface should be locked before accessing this field. The clip_rect field is the clipping rectangle as set by SDL_SetClipRect. The following are supported in the flags field. SDL_SWSURFACE Surface is stored in system memory SDL_HWSURFACE Surface is stored in video memory SDL_ASYNCBLIT Surface uses asynchronous blits if possible SDL_ANYFORMAT Allows any pixel-format (Display surface) SDL_HWPALETTE Surface has exclusive palette SDL_DOUBLEBUF Surface is double buffered (Display surface) SDL_FULLSCREEN Surface is full screen (Display Surface) SDL_OPENGL Surface has an OpenGL context (Display Surface) SDL_OPENGLBLIT Surface supports OpenGL blitting (Display Surface) SDL_RESIZABLE Surface is resizable (Display Surface) SDL_HWACCEL Surface blit uses hardware acceleration SDL_SRCCOLORKEY Surface use colorkey blitting SDL_RLEACCEL Colorkey blitting is accelerated with RLE SDL_SRCALPHA Surface blit uses alpha blending SDL_PREALLOC Surface uses preallocated memory
Tue 11 Sep 2001, 23:01 SDL_Surface(3)

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