SDL_Surface

Structure Definition

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 */
        int offset;                             /* Private */

        /* Hardware-specific surface info */
        struct private_hwdata *hwdata;

        /* clipping information */
        SDL_Rect clip_rect;                     /* Read-only */
        Uint32 unused1;                         /* for binary compatibility */
        Uint32 unused2;                         /* for binary compatibility */

        /* info for fast blit mapping to other surfaces */
        struct SDL_BlitMap *map;                /* Private */

        /* format version, bumped at every change to invalidate blit maps */
        unsigned int format_version;            /* Private */

        /* Reference count -- used when freeing surface */
        int refcount;                           /* Read-mostly */
} SDL_Surface;

Structure Data

Description

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.

See Also

SDL_PixelFormat