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view src/video/x11/SDL_x11video.h @ 3496:78fc8ea578b2

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Joe 2009-11-23 21:31:10 PST If type is ::SDL_HAPTIC_CARTESIAN, direction is encoded by three positions 367 * (X axis, Y axis and Z axis (with 3 axes)). ::SDL_HAPTIC_CARTESIAN uses 368 * the first three \c dir parameters. The cardinal directions would be: 369 * - North: 0,-1, 0 370 * - East: -1, 0, 0 371 * - South: 0, 1, 0 372 * - West: 1, 0, 0 typedef struct SDL_HapticDirection { Uint8 type; /**< The type of encoding. */ Uint16 dir[3]; /**< The encoded direction. */ } SDL_HapticDirection; An unsigned int can't store negative values and I don't see an alternate way to encode them in the docs or source. The best I have been able to come up with is using a negative magnitude for the effect but this will only get me 2 of the 4 quadrants in the plane for 2d effects. I looked at the win32 and linux implementations and I believe is is safe to use signed ints in the direction struct. I am unfamiliar with the darwin haptics API so I don't know if it is safe.
author Sam Lantinga <slouken@libsdl.org>
date Fri, 27 Nov 2009 19:29:27 +0000
parents 54fac87e1f34
children f7b03b6838cb
line wrap: on
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/*
    SDL - Simple DirectMedia Layer
    Copyright (C) 1997-2009 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
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    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
    slouken@libsdl.org
*/
#include "SDL_config.h"

#ifndef _SDL_x11video_h
#define _SDL_x11video_h

#include "../SDL_sysvideo.h"

#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/Xatom.h>

#if SDL_VIDEO_DRIVER_X11_XINERAMA
#include "../Xext/extensions/Xinerama.h"
#endif
#if SDL_VIDEO_DRIVER_X11_XRANDR
#include <X11/extensions/Xrandr.h>
#endif
#if SDL_VIDEO_DRIVER_X11_VIDMODE
#include "../Xext/extensions/xf86vmode.h"
#endif
#if SDL_VIDEO_DRIVER_X11_XINPUT
#include <X11/extensions/XInput.h>
#endif
#if SDL_VIDEO_DRIVER_X11_SCRNSAVER
#include <X11/extensions/scrnsaver.h>
#endif

#include "SDL_x11dyn.h"

#include "SDL_x11events.h"
#include "SDL_x11gamma.h"
#include "SDL_x11keyboard.h"
#include "SDL_x11modes.h"
#include "SDL_x11mouse.h"
#include "SDL_x11opengl.h"
#include "SDL_x11window.h"

/* Private display data */

typedef struct SDL_VideoData
{
    Display *display;
    char *classname;
    XIM im;
    Uint32 screensaver_activity;
    int numwindows;
    SDL_WindowData **windowlist;
    int windowlistlength;
    int keyboard;
    Atom WM_DELETE_WINDOW;
    SDL_scancode key_layout[256];
} SDL_VideoData;

extern SDL_bool X11_UseDirectColorVisuals();

#endif /* _SDL_x11video_h */

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