src/video/x11/SDL_x11video.h
author Sam Lantinga <slouken@libsdl.org>
Thu, 16 Feb 2006 10:11:48 +0000
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/*
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    SDL - Simple DirectMedia Layer
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    Copyright (C) 1997-2006 Sam Lantinga
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    This library is free software; you can redistribute it and/or
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    modify it under the terms of the GNU Lesser General Public
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    License as published by the Free Software Foundation; either
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    version 2.1 of the License, or (at your option) any later version.
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    This library is distributed in the hope that it will be useful,
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    but WITHOUT ANY WARRANTY; without even the implied warranty of
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    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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    Lesser General Public License for more details.
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    You should have received a copy of the GNU Lesser General Public
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    License along with this library; if not, write to the Free Software
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    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
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    Sam Lantinga
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    slouken@libsdl.org
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*/
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#ifndef _SDL_x11video_h
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#define _SDL_x11video_h
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#include <X11/Xlib.h>
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#include <X11/Xutil.h>
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#include <X11/Xatom.h>
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#include "SDL_mouse.h"
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#include "../SDL_sysvideo.h"
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#if SDL_VIDEO_DRIVER_X11_DGAMOUSE
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#include "../Xext/extensions/xf86dga.h"
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#endif
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#if SDL_VIDEO_DRIVER_X11_VIDMODE
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#include "../Xext/extensions/xf86vmode.h"
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#endif
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#if SDL_VIDEO_DRIVER_X11_XME
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#include "../Xext/extensions/xme.h"
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#endif
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#include "SDL_x11dyn.h"
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/* Hidden "this" pointer for the video functions */
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#define _THIS	SDL_VideoDevice *this
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/* Private display data */
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struct SDL_PrivateVideoData {
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    int local_X11;		/* Flag: true if local display */
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    Display *X11_Display;	/* Used for events and window management */
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    Display *GFX_Display;	/* Used for graphics and colormap stuff */
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    Visual *SDL_Visual;		/* The visual used by our window */
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    Window WMwindow;		/* Input window, managed by window manager */
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    Window FSwindow;		/* Fullscreen window, completely unmanaged */
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    Window SDL_Window;		/* Shared by both displays (no X security?) */
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    Atom WM_DELETE_WINDOW;	/* "close-window" protocol atom */
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    WMcursor *BlankCursor;	/* The invisible cursor */
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    XIM X11_IM;		/* Used to communicate with the input method (IM) server */
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    XIC X11_IC;		/* Used for retaining the state, properties, and semantics of communication with                                                  the input method (IM) server */
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    char *SDL_windowid;		/* Flag: true if we have been passed a window */
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    /* Direct Graphics Access extension information */
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    int using_dga;
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#ifndef NO_SHARED_MEMORY
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    /* MIT shared memory extension information */
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    int use_mitshm;
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    XShmSegmentInfo shminfo;
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#endif
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    /* The variables used for displaying graphics */
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    XImage *Ximage;		/* The X image for our window */
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    GC	gc;			/* The graphic context for drawing */
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    /* The current width and height of the fullscreen mode */
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    int current_w;
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    int current_h;
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    /* Support for internal mouse warping */
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    struct {
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        int x;
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        int y;
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    } mouse_last;
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    struct {
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        int numerator;
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        int denominator;
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        int threshold;
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    } mouse_accel;
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    int mouse_relative;
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    /* The current list of available video modes */
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    SDL_Rect **modelist;
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    /* available visuals of interest to us, sorted deepest first */
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    struct {
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	Visual *visual;
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	int depth;		/* number of significant bits/pixel */
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	int bpp;		/* pixel quantum in bits */
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    } visuals[2*5];		/* at most 2 entries for 8, 15, 16, 24, 32 */
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    int nvisuals;
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    Visual *vis;		/* current visual in use */
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    int depth;			/* current visual depth (not bpp) */
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    /* Variables used by the X11 video mode code */
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#if SDL_VIDEO_DRIVER_X11_VIDMODE
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    SDL_NAME(XF86VidModeModeInfo) saved_mode;
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    struct {
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        int x, y;
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    } saved_view;
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#endif
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#if SDL_VIDEO_DRIVER_X11_XME /* XiG XME fullscreen */
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    int use_xme;
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    XiGMiscResolutionInfo saved_res;
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#endif
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    int xinerama_x;
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    int xinerama_y;
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    int use_vidmode;
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    int currently_fullscreen;
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    /* Automatic mode switching support (entering/leaving fullscreen) */
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    Uint32 switch_waiting;
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    Uint32 switch_time;
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    /* Prevent too many XSync() calls */
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    int blit_queued;
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    /* Colormap handling */
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    Colormap DisplayColormap;	/* The default display colormap */
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    Colormap XColorMap;		/* The current window colormap */
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    int *XPixels;		/* pixels value allocation counts */
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    float gamma_saved[3];	/* Saved gamma values for VidMode gamma */
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    int gamma_changed;		/* flag: has VidMode gamma been modified? */
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    short *iconcolors;		/* List of colors used by the icon */
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};
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/* Old variable names */
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#define local_X11		(this->hidden->local_X11)
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#define SDL_Display		(this->hidden->X11_Display)
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#define GFX_Display		(this->hidden->GFX_Display)
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#define SDL_Screen		DefaultScreen(this->hidden->X11_Display)
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#define SDL_Visual		(this->hidden->vis)
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#define SDL_Root		RootWindow(SDL_Display, SDL_Screen)
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#define WMwindow		(this->hidden->WMwindow)
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#define FSwindow		(this->hidden->FSwindow)
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#define SDL_Window		(this->hidden->SDL_Window)
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#define WM_DELETE_WINDOW	(this->hidden->WM_DELETE_WINDOW)
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#define SDL_BlankCursor		(this->hidden->BlankCursor)
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#define SDL_IM			(this->hidden->X11_IM)
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#define SDL_IC			(this->hidden->X11_IC)
0
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#define SDL_windowid		(this->hidden->SDL_windowid)
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#define using_dga		(this->hidden->using_dga)
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#define use_mitshm		(this->hidden->use_mitshm)
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#define shminfo			(this->hidden->shminfo)
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#define SDL_Ximage		(this->hidden->Ximage)
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#define SDL_GC			(this->hidden->gc)
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#define current_w		(this->hidden->current_w)
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#define current_h		(this->hidden->current_h)
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#define mouse_last		(this->hidden->mouse_last)
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#define mouse_accel		(this->hidden->mouse_accel)
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#define mouse_relative		(this->hidden->mouse_relative)
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#define SDL_modelist		(this->hidden->modelist)
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#define saved_mode		(this->hidden->saved_mode)
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#define saved_view		(this->hidden->saved_view)
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#define use_xme			(this->hidden->use_xme)
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#define saved_res		(this->hidden->saved_res)
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#define xinerama_x		(this->hidden->xinerama_x)
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#define xinerama_y		(this->hidden->xinerama_y)
0
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#define use_vidmode		(this->hidden->use_vidmode)
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#define currently_fullscreen	(this->hidden->currently_fullscreen)
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#define switch_waiting		(this->hidden->switch_waiting)
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#define switch_time		(this->hidden->switch_time)
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#define blit_queued		(this->hidden->blit_queued)
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#define SDL_DisplayColormap	(this->hidden->DisplayColormap)
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#define SDL_PrivateColormap	(this->hidden->PrivateColormap)
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#define SDL_XColorMap		(this->hidden->XColorMap)
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#define SDL_XPixels		(this->hidden->XPixels)
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#define gamma_saved		(this->hidden->gamma_saved)
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#define gamma_changed		(this->hidden->gamma_changed)
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#define SDL_iconcolors		(this->hidden->iconcolors)
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/* Some versions of XFree86 have bugs - detect if this is one of them */
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#define BUGGY_XFREE86(condition, buggy_version) \
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((SDL_strcmp(ServerVendor(SDL_Display), "The XFree86 Project, Inc") == 0) && \
0
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 (VendorRelease(SDL_Display) condition buggy_version))
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#endif /* _SDL_x11video_h */