author Sam Lantinga <>
Sun, 11 Jun 2006 07:30:16 +0000
changeset 1675 d33dcfc3fde7
parent 1670 eef792d31de8
child 1682 7ae8018b2e5d
permissions -rw-r--r--
Overlay functions are being replaced by YUV textures. If the driver doesn't support YUV textures, they can be emulated by backing the texture with an RGB texture and using the software conversion routines. Note that it doesn't make sense to lock a portion of a YV12 texture, since you'd need to return three pixel pointers and pitch values instead of the one that's available through the API. I'm guessing that's one of the reasons DirectX 9 doesn't support this format at all.

    SDL - Simple DirectMedia Layer
    Copyright (C) 1997-2006 Sam Lantinga

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2.1 of the License, or (at your option) any later version.

    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public
    License along with this library; if not, write to the Free Software
    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

    Sam Lantinga

/* This file contains functions for backwards compatibility with SDL 1.2 */

#ifndef _SDL_compat_h
#define _SDL_compat_h

#include "SDL_video.h"
#include "SDL_syswm.h"

#include "begin_code.h"
/* Set up for C function definitions, even when using C++ */
#ifdef __cplusplus
/* *INDENT-OFF* */
extern "C" {
/* *INDENT-ON* */

#define SDL_SWSURFACE       0x00000000
#define SDL_ANYFORMAT       0x00100000
#define SDL_HWPALETTE       0x00200000
#define SDL_DOUBLEBUF       0x00400000
#define SDL_FULLSCREEN      0x00800000
#define SDL_RESIZABLE       0x01000000
#define SDL_NOFRAME         0x02000000
#define SDL_OPENGL          0x04000000
#define SDL_ASYNCBLIT       0x00000000
#define SDL_HWACCEL         0x00000000
#define SDL_SCREEN_SURFACE  0x10000000  /* Surface is a window screen surface */
#define SDL_SHADOW_SURFACE  0x20000000  /* Surface is a window shadow surface */

#define SDL_APPACTIVE		0x04

#define SDL_LOGPAL 0x01
#define SDL_PHYSPAL 0x02


typedef struct SDL_VideoInfo
    Uint32 hw_available:1;
    Uint32 wm_available:1;
    Uint32 UnusedBits1:6;
    Uint32 UnusedBits2:1;
    Uint32 blit_hw:1;
    Uint32 blit_hw_CC:1;
    Uint32 blit_hw_A:1;
    Uint32 blit_sw:1;
    Uint32 blit_sw_CC:1;
    Uint32 blit_sw_A:1;
    Uint32 blit_fill:1;
    Uint32 UnusedBits3:16;
    Uint32 video_mem;

    SDL_PixelFormat *vfmt;
} SDL_VideoInfo;

/* The most common video overlay formats.
   For an explanation of these pixel formats, see:

   For information on the relationship between color spaces, see:
#define SDL_YV12_OVERLAY  0x32315659    /* Planar mode: Y + V + U  (3 planes) */
#define SDL_IYUV_OVERLAY  0x56555949    /* Planar mode: Y + U + V  (3 planes) */
#define SDL_YUY2_OVERLAY  0x32595559    /* Packed mode: Y0+U0+Y1+V0 (1 plane) */
#define SDL_UYVY_OVERLAY  0x59565955    /* Packed mode: U0+Y0+V0+Y1 (1 plane) */
#define SDL_YVYU_OVERLAY  0x55595659    /* Packed mode: Y0+V0+Y1+U0 (1 plane) */

/* The YUV hardware video overlay */
typedef struct SDL_Overlay
    Uint32 format;              /* Read-only */
    int w, h;                   /* Read-only */
    int planes;                 /* Read-only */
    Uint16 *pitches;            /* Read-only */
    Uint8 **pixels;             /* Read-write */

    /* Hardware-specific surface info */
    struct private_yuvhwfuncs *hwfuncs;
    struct private_yuvhwdata *hwdata;

    /* Special flags */
    Uint32 hw_overlay:1;        /* Flag: This overlay hardware accelerated? */
    Uint32 UnusedBits:31;
} SDL_Overlay;

typedef enum
    SDL_GRAB_QUERY = -1,
    SDL_GRAB_OFF = 0,
    SDL_GRAB_ON = 1
} SDL_GrabMode;

#define SDL_AllocSurface    SDL_CreateRGBSurface

extern DECLSPEC const SDL_version *SDLCALL SDL_Linked_Version(void);
extern DECLSPEC char *SDLCALL SDL_AudioDriverName(char *namebuf, int maxlen);
extern DECLSPEC char *SDLCALL SDL_VideoDriverName(char *namebuf, int maxlen);
extern DECLSPEC const SDL_VideoInfo *SDLCALL SDL_GetVideoInfo(void);
extern DECLSPEC int SDLCALL SDL_VideoModeOK(int width, int height, int bpp,
                                            Uint32 flags);
extern DECLSPEC SDL_Rect **SDLCALL SDL_ListModes(SDL_PixelFormat * format,
                                                 Uint32 flags);
extern DECLSPEC SDL_Surface *SDLCALL SDL_SetVideoMode(int width, int height,
                                                      int bpp, Uint32 flags);
extern DECLSPEC SDL_Surface *SDLCALL SDL_GetVideoSurface(void);
extern DECLSPEC void SDLCALL SDL_UpdateRects(SDL_Surface * screen,
                                             int numrects, SDL_Rect * rects);
extern DECLSPEC void SDLCALL SDL_UpdateRect(SDL_Surface * screen, Sint32 x,
                                            Sint32 y, Uint32 w, Uint32 h);
extern DECLSPEC int SDLCALL SDL_Flip(SDL_Surface * screen);
extern DECLSPEC SDL_Surface *SDLCALL SDL_DisplayFormat(SDL_Surface * surface);
extern DECLSPEC SDL_Surface *SDLCALL SDL_DisplayFormatAlpha(SDL_Surface *
extern DECLSPEC void SDLCALL SDL_WM_SetCaption(const char *title,
                                               const char *icon);
extern DECLSPEC void SDLCALL SDL_WM_GetCaption(char **title, char **icon);
extern DECLSPEC void SDLCALL SDL_WM_SetIcon(SDL_Surface * icon, Uint8 * mask);
extern DECLSPEC int SDLCALL SDL_WM_IconifyWindow(void);
extern DECLSPEC int SDLCALL SDL_WM_ToggleFullScreen(SDL_Surface * surface);
extern DECLSPEC SDL_GrabMode SDLCALL SDL_WM_GrabInput(SDL_GrabMode mode);
extern DECLSPEC int SDLCALL SDL_SetPalette(SDL_Surface * surface, int flags,
                                           SDL_Color * colors,
                                           int firstcolor, int ncolors);
extern DECLSPEC int SDLCALL SDL_SetScreenColors(SDL_Surface * screen,
                                                SDL_Color * colors,
                                                int firstcolor, int ncolors);
extern DECLSPEC int SDLCALL SDL_GetWMInfo(SDL_SysWMinfo * info);
extern DECLSPEC Uint8 SDLCALL SDL_GetAppState(void);
extern DECLSPEC void SDLCALL SDL_WarpMouse(Uint16 x, Uint16 y);
extern DECLSPEC SDL_Overlay *SDLCALL SDL_CreateYUVOverlay(int width,
                                                          int height,
                                                          Uint32 format,
                                                          SDL_Surface *
extern DECLSPEC int SDLCALL SDL_LockYUVOverlay(SDL_Overlay * overlay);
extern DECLSPEC void SDLCALL SDL_UnlockYUVOverlay(SDL_Overlay * overlay);
extern DECLSPEC int SDLCALL SDL_DisplayYUVOverlay(SDL_Overlay * overlay,
                                                  SDL_Rect * dstrect);
extern DECLSPEC void SDLCALL SDL_FreeYUVOverlay(SDL_Overlay * overlay);

/* Ends C function definitions when using C++ */
#ifdef __cplusplus
/* *INDENT-OFF* */
/* *INDENT-ON* */
#include "close_code.h"

#endif /* _SDL_compat_h */

/* vi: set ts=4 sw=4 expandtab: */