view src/video/Xext/extensions/xf86vmode.h @ 4167:a6f635e5eaa6 SDL-1.2

Fixed bug #611 From Tim Angus 2008-08-12 11:18:06 I'm one of the maintainers of ioquake3.org, an updated version of the Quake 3 engine. Relatively recently, we moved ioq3 to use SDL as a replacement for 95% of the platform specific code that was there. On the whole it's doing a great job but unfortunately since the move we've been getting complaints about the quality of the mouse input on the Windows platform to the point where for many the game is unplayable. Put in other terms, the current stable SDL 1.2 is basically not fit for purpose if you need high quality mouse input as you do in a first person shooter. Over the weekend I decided to pull my finger out and actually figure out what's going on. There are basically two major problems. Firstly, when using the "windib" driver, mouse input is gathered via the WM_MOUSEMOVE message. Googling for this indicates that often this is known to result in "spurious" and/or "missing" mouse movement events; this is the primary cause of the poor mouse input. The second problem is that the "directx" driver does not work at all in combination with OpenGL meaning that you can't use DirectInput if your application also uses OpenGL. In other words you're locked into using the "windib" driver and its poor mouse input. In order to address these problems I've done the following: * Remove WM_MOUSEMOVE based motion event generation and replace with calls to GetCursorPos which seems much more reliable. In order to achieve this I've moved mouse motion out into a separate function that is called once per DIB_PumpEvents. * Remove the restriction on the "directx" driver being inoperable in combination with OpenGL. There is a bug for this issues that I've hijacked to a certain extent (http://bugzilla.libsdl.org/show_bug.cgi?id=265). I'm the first to admit I don't really understand why this restriction is there in the first place. The commit message for the bug fix that introduced this restriction (r581) isn't very elaborate and I couldn't see any other bug tracking the issue. If anyone has more information on the bug that was avoided by r581 it would be helpful as I/someone could then look into addressing the problem without disabling the "directx" driver. * I've also removed the restriction on not being allowed to use DirectInput in windowed mode. I couldn't see any reason for this, at least not from our perspective. I have my suspicions that it'll be something like matching up the cursor with the mouse coordinates... * I bumped up the DirectInput API used to version 7 in order to get access to mouse buttons 4-7. I've had to inject a little bit of the DX7 headers into SDL there as the MinGW ones aren't up to date in this respect.
author Sam Lantinga <slouken@libsdl.org>
date Thu, 02 Apr 2009 04:43:36 +0000
parents 585a7e1285ae
children 782fd950bd46 c121d94672cb
line wrap: on
line source

/* $XFree86: xc/include/extensions/xf86vmode.h,v 3.30 2001/05/07 20:09:50 mvojkovi Exp $ */
/*

Copyright 1995  Kaleb S. KEITHLEY

Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:

The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL Kaleb S. KEITHLEY BE LIABLE FOR ANY CLAIM, DAMAGES 
OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
OTHER DEALINGS IN THE SOFTWARE.

Except as contained in this notice, the name of Kaleb S. KEITHLEY 
shall not be used in advertising or otherwise to promote the sale, use 
or other dealings in this Software without prior written authorization
from Kaleb S. KEITHLEY

*/
/* $Xorg: xf86vmode.h,v 1.3 2000/08/18 04:05:46 coskrey Exp $ */

/* THIS IS NOT AN X CONSORTIUM STANDARD OR AN X PROJECT TEAM SPECIFICATION */

#ifndef _XF86VIDMODE_H_
#define _XF86VIDMODE_H_

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

#define X_XF86VidModeQueryVersion	0
#define X_XF86VidModeGetModeLine	1
#define X_XF86VidModeModModeLine	2
#define X_XF86VidModeSwitchMode		3
#define X_XF86VidModeGetMonitor		4
#define X_XF86VidModeLockModeSwitch	5
#define X_XF86VidModeGetAllModeLines	6
#define X_XF86VidModeAddModeLine	7
#define X_XF86VidModeDeleteModeLine	8
#define X_XF86VidModeValidateModeLine	9
#define X_XF86VidModeSwitchToMode	10
#define X_XF86VidModeGetViewPort	11
#define X_XF86VidModeSetViewPort	12
/* new for version 2.x of this extension */
#define X_XF86VidModeGetDotClocks	13
#define X_XF86VidModeSetClientVersion	14
#define X_XF86VidModeSetGamma		15
#define X_XF86VidModeGetGamma		16
#define X_XF86VidModeGetGammaRamp	17
#define X_XF86VidModeSetGammaRamp	18
#define X_XF86VidModeGetGammaRampSize	19

#define CLKFLAG_PROGRAMABLE		1

#ifdef XF86VIDMODE_EVENTS
#define XF86VidModeNotify		0
#define XF86VidModeNumberEvents		(XF86VidModeNotify + 1)

#define XF86VidModeNotifyMask		0x00000001

#define XF86VidModeNonEvent		0
#define XF86VidModeModeChange		1
#else
#define XF86VidModeNumberEvents		0
#endif

#define XF86VidModeBadClock		0
#define XF86VidModeBadHTimings		1
#define XF86VidModeBadVTimings		2
#define XF86VidModeModeUnsuitable	3
#define XF86VidModeExtensionDisabled	4
#define XF86VidModeClientNotLocal	5
#define XF86VidModeZoomLocked		6
#define XF86VidModeNumberErrors		(XF86VidModeZoomLocked + 1)

#ifndef _XF86VIDMODE_SERVER_

typedef struct {
    unsigned short	hdisplay;
    unsigned short	hsyncstart;
    unsigned short	hsyncend;
    unsigned short	htotal;
    unsigned short	hskew;
    unsigned short	vdisplay;
    unsigned short	vsyncstart;
    unsigned short	vsyncend;
    unsigned short	vtotal;
    unsigned int	flags;
    int			privsize;
#if defined(__cplusplus) || defined(c_plusplus)
    /* private is a C++ reserved word */
    INT32		*c_private;
#else
    INT32		*private;
#endif
} SDL_NAME(XF86VidModeModeLine);

typedef struct {
    unsigned int	dotclock;
    unsigned short	hdisplay;
    unsigned short	hsyncstart;
    unsigned short	hsyncend;
    unsigned short	htotal;
    unsigned short	hskew;
    unsigned short	vdisplay;
    unsigned short	vsyncstart;
    unsigned short	vsyncend;
    unsigned short	vtotal;
    unsigned int	flags;
    int			privsize;
#if defined(__cplusplus) || defined(c_plusplus)
    /* private is a C++ reserved word */
    INT32		*c_private;
#else
    INT32		*private;
#endif
} SDL_NAME(XF86VidModeModeInfo);

typedef struct {
    float		hi;
    float		lo;
} SDL_NAME(XF86VidModeSyncRange);

typedef struct {
    char*			vendor;
    char*			model;
    float			EMPTY;
    unsigned char		nhsync;
    SDL_NAME(XF86VidModeSyncRange)*	hsync;
    unsigned char		nvsync;
    SDL_NAME(XF86VidModeSyncRange)*	vsync;
} SDL_NAME(XF86VidModeMonitor);
    
typedef struct {
    int type;			/* of event */
    unsigned long serial;	/* # of last request processed by server */
    Bool send_event;		/* true if this came from a SendEvent req */
    Display *display;		/* Display the event was read from */
    Window root;		/* root window of event screen */
    int state;			/* What happened */
    int kind;			/* What happened */
    Bool forced;		/* extents of new region */
    Time time;			/* event timestamp */
} SDL_NAME(XF86VidModeNotifyEvent);

typedef struct {
    float red;			/* Red Gamma value */
    float green;		/* Green Gamma value */
    float blue;			/* Blue Gamma value */
} SDL_NAME(XF86VidModeGamma);


#define SDL_XF86VidModeSelectNextMode(disp, scr) \
	SDL_NAME(XF86VidModeSwitchMode)(disp, scr, 1)
#define SDL_XF86VidModeSelectPrevMode(disp, scr) \
	SDL_NAME(XF86VidModeSwitchMode)(disp, scr, -1)

_XFUNCPROTOBEGIN

Bool SDL_NAME(XF86VidModeQueryVersion)(
    Display*		/* dpy */,
    int*		/* majorVersion */,
    int*		/* minorVersion */
);

Bool SDL_NAME(XF86VidModeQueryExtension)(
    Display*		/* dpy */,
    int*		/* event_base */,
    int*		/* error_base */
);

Bool SDL_NAME(XF86VidModeSetClientVersion)(
    Display*		/* dpy */
);

Bool SDL_NAME(XF86VidModeGetModeLine)(
    Display*			/* dpy */,
    int				/* screen */,
    int*			/* dotclock */,
    SDL_NAME(XF86VidModeModeLine)*	/* modeline */
);

Bool SDL_NAME(XF86VidModeGetAllModeLines)(
    Display*			/* dpy */,
    int				/* screen */,
    int*			/* modecount */,
    SDL_NAME(XF86VidModeModeInfo)***	/* modelinesPtr */
);

Bool SDL_NAME(XF86VidModeAddModeLine)(
    Display*			/* dpy */,
    int				/* screen */,
    SDL_NAME(XF86VidModeModeInfo)*	/* new modeline */,
    SDL_NAME(XF86VidModeModeInfo)*	/* after modeline */
);

Bool SDL_NAME(XF86VidModeDeleteModeLine)(
    Display*			/* dpy */,
    int				/* screen */,
    SDL_NAME(XF86VidModeModeInfo)*	/* modeline */
);

Bool SDL_NAME(XF86VidModeModModeLine)(
    Display*			/* dpy */,
    int				/* screen */,
    SDL_NAME(XF86VidModeModeLine)*	/* modeline */
);

Status SDL_NAME(XF86VidModeValidateModeLine)(
    Display*			/* dpy */,
    int				/* screen */,
    SDL_NAME(XF86VidModeModeInfo)*	/* modeline */
);

Bool SDL_NAME(XF86VidModeSwitchMode)(
    Display*		/* dpy */,
    int			/* screen */,
    int			/* zoom */
);

Bool SDL_NAME(XF86VidModeSwitchToMode)(
    Display*			/* dpy */,
    int				/* screen */,
    SDL_NAME(XF86VidModeModeInfo)*	/* modeline */
);

Bool SDL_NAME(XF86VidModeLockModeSwitch)(
    Display*		/* dpy */,
    int			/* screen */,
    int			/* lock */
);

Bool SDL_NAME(XF86VidModeGetMonitor)(
    Display*		/* dpy */,
    int			/* screen */,
    SDL_NAME(XF86VidModeMonitor)*	/* monitor */
);

Bool SDL_NAME(XF86VidModeGetViewPort)(
    Display*		/* dpy */,
    int			/* screen */,
    int*		/* x return */,
    int*		/* y return */
);

Bool SDL_NAME(XF86VidModeSetViewPort)(
    Display*		/* dpy */,
    int			/* screen */,
    int			/* x */,
    int			/* y */
);

Bool SDL_NAME(XF86VidModeGetDotClocks)(
    Display*		/* dpy */,
    int			/* screen */,
    int*		/* flags return */,
    int*		/* number of clocks return */,
    int*		/* max dot clock return */,
    int**		/* clocks return */
);

Bool SDL_NAME(XF86VidModeGetGamma)(
    Display*			/* dpy */,
    int				/* screen */,
    SDL_NAME(XF86VidModeGamma)*		/* Gamma */
);

Bool SDL_NAME(XF86VidModeSetGamma)(
    Display*			/* dpy */,
    int				/* screen */,
    SDL_NAME(XF86VidModeGamma)*		/* Gamma */
);

Bool SDL_NAME(XF86VidModeSetGammaRamp)(
    Display*                    /* dpy */,
    int                         /* screen */,
    int				/* size */, 
    unsigned short*             /* red array */,
    unsigned short*             /* green array */,
    unsigned short*             /* blue array */
);

Bool SDL_NAME(XF86VidModeGetGammaRamp)(
    Display*                    /* dpy */,
    int                         /* screen */,
    int                         /* size */,
    unsigned short*             /* red array */,
    unsigned short*             /* green array */,
    unsigned short*             /* blue array */
);

Bool SDL_NAME(XF86VidModeGetGammaRampSize)(
    Display*                    /* dpy */,
    int                         /* screen */,
    int*                        /* size */
);


_XFUNCPROTOEND

#endif

#endif