view src/video/Xext/extensions/xf86dga1.h @ 1554:0ca607a5d173

Fixed bug #84 Date: Sun, 23 Oct 2005 16:39:03 +0200 From: "A. Schmid" <sahib@phreaker.net> Subject: [SDL] no software surfaces with svgalib driver? Hi, I noticed that the SDL (1.2.9) svgalib driver only makes use of linear addressable (framebuffer) video modes. On older systems (like one of mine), linear addressable modes are often not available. Especially for cards with VESA VBE < 2.0 the svgalib vesa driver is unusable, since VESA only supports framebuffering for VBE 2.0 and later. The changes necessary to add support for software surfaces seem to be relatively small. I only had to hack src/video/svga/SDL_svgavideo.c (see attached patch). The code worked fine for me, but it is no more than a proof of concept and should be reviewed (probably has a memory leak when switching modes). It also uses the vgagl library (included in the svgalib package) and needs to be linked against it. -Alex
author Sam Lantinga <slouken@libsdl.org>
date Sun, 19 Mar 2006 12:04:40 +0000
parents 585a7e1285ae
children 782fd950bd46 c121d94672cb
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/* $XFree86: xc/include/extensions/xf86dga1.h,v 1.2 1999/04/17 07:05:41 dawes Exp $ */
/*

Copyright (c) 1995  Jon Tombs
Copyright (c) 1995  XFree86 Inc

*/

/************************************************************************

   THIS IS THE OLD DGA API AND IS OBSOLETE.  PLEASE DO NOT USE IT ANYMORE

************************************************************************/

#ifndef _XF86DGA1_H_
#define _XF86DGA1_H_

#include <X11/Xfuncproto.h>
#include "SDL_name.h"

#define X_XF86DGAQueryVersion		0
#define X_XF86DGAGetVideoLL		1
#define X_XF86DGADirectVideo		2
#define X_XF86DGAGetViewPortSize	3
#define X_XF86DGASetViewPort		4
#define X_XF86DGAGetVidPage		5
#define X_XF86DGASetVidPage		6
#define X_XF86DGAInstallColormap	7
#define X_XF86DGAQueryDirectVideo	8
#define X_XF86DGAViewPortChanged	9

#define XF86DGADirectPresent		0x0001
#define XF86DGADirectGraphics		0x0002
#define XF86DGADirectMouse		0x0004
#define XF86DGADirectKeyb		0x0008
#define XF86DGAHasColormap		0x0100
#define XF86DGADirectColormap		0x0200




#ifndef _XF86DGA_SERVER_

_XFUNCPROTOBEGIN

Bool SDL_NAME(XF86DGAQueryVersion)(
#if NeedFunctionPrototypes
    Display*		/* dpy */,
    int*		/* majorVersion */,
    int*		/* minorVersion */
#endif
);

Bool SDL_NAME(XF86DGAQueryExtension)(
#if NeedFunctionPrototypes
    Display*		/* dpy */,
    int*		/* event_base */,
    int*		/* error_base */
#endif
);

Status SDL_NAME(XF86DGAGetVideoLL)(
#if NeedFunctionPrototypes
    Display*			/* dpy */,
    int				/* screen */,
    int *			/* base addr */,
    int *			/* width */,
    int *			/* bank_size */,
    int *			/* ram_size */ 
#endif
);

Status SDL_NAME(XF86DGAGetVideo)(
#if NeedFunctionPrototypes
    Display*			/* dpy */,
    int				/* screen */,
    char **			/* base addr */,
    int *			/* width */,
    int *			/* bank_size */,
    int *			/* ram_size */
#endif
);

Status SDL_NAME(XF86DGADirectVideo)(
#if NeedFunctionPrototypes
    Display*			/* dpy */,
    int				/* screen */,
    int 			/* enable */
#endif
);

Status SDL_NAME(XF86DGADirectVideoLL)(
#if NeedFunctionPrototypes
    Display*			/* dpy */,
    int				/* screen */,
    int 			/* enable */
#endif
);

Status SDL_NAME(XF86DGAGetViewPortSize)(
#if NeedFunctionPrototypes
    Display*			/* dpy */,
    int				/* screen */,
    int *			/* width */,
    int *			/* height */
#endif
);

Status SDL_NAME(XF86DGASetViewPort)(
#if NeedFunctionPrototypes
    Display*			/* dpy */,
    int				/* screen */,
    int x			/* X */,
    int y			/* Y */
#endif
);

Status SDL_NAME(XF86DGAGetVidPage)(
#if NeedFunctionPrototypes
    Display*			/* dpy */,
    int				/* screen */,
    int *			/* vid page */
#endif
);

Status SDL_NAME(XF86DGASetVidPage)(
#if NeedFunctionPrototypes
    Display*			/* dpy */,
    int				/* screen */,
    int				/* vid page */
#endif
);

Status SDL_NAME(XF86DGAInstallColormap)(
#if NeedFunctionPrototypes
    Display*			/* dpy */,
    int				/* screen */,
    Colormap			/*Colormap */
#endif
);

int SDL_NAME(XF86DGAForkApp)(
#if NeedFunctionPrototypes
    int screen
#endif
);

Status SDL_NAME(XF86DGAQueryDirectVideo)(
#if NeedFunctionPrototypes
    Display *		/* dpy */,
    int			/* screen */,
    int *		/* flags */
#endif
);

Bool SDL_NAME(XF86DGAViewPortChanged)(
#if NeedFunctionPrototypes
    Display *		/* dpy */,
    int			/* screen */,
    int			/* n */
#endif
);


_XFUNCPROTOEND

#endif /* _XF86DGA_SERVER_ */

#endif /* _XF86DGA1_H_ */