src/video/x11/SDL_x11video.h
author Ryan C. Gordon <icculus@icculus.org>
Sat, 05 Nov 2005 19:53:37 +0000
changeset 1168 045f186426e1
parent 769 b8d311d90021
child 1178 9867f3d86e44
permissions -rw-r--r--
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
This allows you to run an SDL program on a system without Xlib, since it'll
just report the x11 target unavailable at runtime.
     1 /*
     2     SDL - Simple DirectMedia Layer
     3     Copyright (C) 1997-2004 Sam Lantinga
     4 
     5     This library is free software; you can redistribute it and/or
     6     modify it under the terms of the GNU Library General Public
     7     License as published by the Free Software Foundation; either
     8     version 2 of the License, or (at your option) any later version.
     9 
    10     This library is distributed in the hope that it will be useful,
    11     but WITHOUT ANY WARRANTY; without even the implied warranty of
    12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    13     Library General Public License for more details.
    14 
    15     You should have received a copy of the GNU Library General Public
    16     License along with this library; if not, write to the Free
    17     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
    18 
    19     Sam Lantinga
    20     slouken@libsdl.org
    21 */
    22 
    23 #ifdef SAVE_RCSID
    24 static char rcsid =
    25  "@(#) $Id$";
    26 #endif
    27 
    28 #ifndef _SDL_x11video_h
    29 #define _SDL_x11video_h
    30 
    31 #include <X11/Xlib.h>
    32 #include <X11/Xutil.h>
    33 #include <X11/Xatom.h>
    34 
    35 #ifdef XFREE86_DGAMOUSE
    36 #include <XFree86/extensions/xf86dga.h>
    37 #endif
    38 #ifdef XFREE86_VM
    39 #include <XFree86/extensions/xf86vmode.h>
    40 #endif
    41 #ifdef HAVE_XIGXME
    42 #include <X11/extensions/xme.h>
    43 #endif
    44 
    45 #include <string.h>
    46 
    47 #include "SDL_mouse.h"
    48 #include "SDL_sysvideo.h"
    49 #include "SDL_x11dyn.h"
    50 
    51 /* Hidden "this" pointer for the video functions */
    52 #define _THIS	SDL_VideoDevice *this
    53 
    54 /* Private display data */
    55 struct SDL_PrivateVideoData {
    56     int local_X11;		/* Flag: true if local display */
    57     Display *X11_Display;	/* Used for events and window management */
    58     Display *GFX_Display;	/* Used for graphics and colormap stuff */
    59     Visual *SDL_Visual;		/* The visual used by our window */
    60     Window WMwindow;		/* Input window, managed by window manager */
    61     Window FSwindow;		/* Fullscreen window, completely unmanaged */
    62     Window SDL_Window;		/* Shared by both displays (no X security?) */
    63     Atom WM_DELETE_WINDOW;	/* "close-window" protocol atom */
    64     WMcursor *BlankCursor;	/* The invisible cursor */
    65 
    66     char *SDL_windowid;		/* Flag: true if we have been passed a window */
    67 
    68     /* Direct Graphics Access extension information */
    69     int using_dga;
    70 
    71 #ifndef NO_SHARED_MEMORY
    72     /* MIT shared memory extension information */
    73     int use_mitshm;
    74     XShmSegmentInfo shminfo;
    75 #endif
    76 
    77     /* The variables used for displaying graphics */
    78     XImage *Ximage;		/* The X image for our window */
    79     GC	gc;			/* The graphic context for drawing */
    80 
    81     /* The current width and height of the fullscreen mode */
    82     int current_w;
    83     int current_h;
    84 
    85     /* Support for internal mouse warping */
    86     struct {
    87         int x;
    88         int y;
    89     } mouse_last;
    90     struct {
    91         int numerator;
    92         int denominator;
    93         int threshold;
    94     } mouse_accel;
    95     int mouse_relative;
    96 
    97     /* The current list of available video modes */
    98     SDL_Rect **modelist;
    99 
   100     /* available visuals of interest to us, sorted deepest first */
   101     struct {
   102 	Visual *visual;
   103 	int depth;		/* number of significant bits/pixel */
   104 	int bpp;		/* pixel quantum in bits */
   105     } visuals[2*5];		/* at most 2 entries for 8, 15, 16, 24, 32 */
   106     int nvisuals;
   107 
   108     Visual *vis;		/* current visual in use */
   109     int depth;			/* current visual depth (not bpp) */
   110 
   111     /* Variables used by the X11 video mode code */
   112 #ifdef XFREE86_VM
   113     SDL_NAME(XF86VidModeModeInfo) saved_mode;
   114     struct {
   115         int x, y;
   116     } saved_view;
   117 #endif
   118 #ifdef HAVE_XIGXME /* XiG XME fullscreen */
   119     int use_xme;
   120     XiGMiscResolutionInfo saved_res;
   121 #endif
   122 
   123     int xinerama_x;
   124     int xinerama_y;
   125     int use_vidmode;
   126     int currently_fullscreen;
   127 
   128     /* Automatic mode switching support (entering/leaving fullscreen) */
   129     Uint32 switch_waiting;
   130     Uint32 switch_time;
   131 
   132     /* Prevent too many XSync() calls */
   133     int blit_queued;
   134 
   135     /* Colormap handling */
   136     Colormap DisplayColormap;	/* The default display colormap */
   137     Colormap XColorMap;		/* The current window colormap */
   138     int *XPixels;		/* pixels value allocation counts */
   139     float gamma_saved[3];	/* Saved gamma values for VidMode gamma */
   140     int gamma_changed;		/* flag: has VidMode gamma been modified? */
   141 
   142     short *iconcolors;		/* List of colors used by the icon */
   143 };
   144 
   145 /* Old variable names */
   146 #define local_X11		(this->hidden->local_X11)
   147 #define SDL_Display		(this->hidden->X11_Display)
   148 #define GFX_Display		(this->hidden->GFX_Display)
   149 #define SDL_Screen		DefaultScreen(this->hidden->X11_Display)
   150 
   151 #define SDL_Visual		(this->hidden->vis)
   152 
   153 #define SDL_Root		RootWindow(SDL_Display, SDL_Screen)
   154 #define WMwindow		(this->hidden->WMwindow)
   155 #define FSwindow		(this->hidden->FSwindow)
   156 #define SDL_Window		(this->hidden->SDL_Window)
   157 #define WM_DELETE_WINDOW	(this->hidden->WM_DELETE_WINDOW)
   158 #define SDL_BlankCursor		(this->hidden->BlankCursor)
   159 #define SDL_windowid		(this->hidden->SDL_windowid)
   160 #define using_dga		(this->hidden->using_dga)
   161 #define use_mitshm		(this->hidden->use_mitshm)
   162 #define shminfo			(this->hidden->shminfo)
   163 #define SDL_Ximage		(this->hidden->Ximage)
   164 #define SDL_GC			(this->hidden->gc)
   165 #define current_w		(this->hidden->current_w)
   166 #define current_h		(this->hidden->current_h)
   167 #define mouse_last		(this->hidden->mouse_last)
   168 #define mouse_accel		(this->hidden->mouse_accel)
   169 #define mouse_relative		(this->hidden->mouse_relative)
   170 #define SDL_modelist		(this->hidden->modelist)
   171 #define saved_mode		(this->hidden->saved_mode)
   172 #define saved_view		(this->hidden->saved_view)
   173 #define use_xme			(this->hidden->use_xme)
   174 #define saved_res		(this->hidden->saved_res)
   175 #define xinerama_x		(this->hidden->xinerama_x)
   176 #define xinerama_y		(this->hidden->xinerama_y)
   177 #define use_vidmode		(this->hidden->use_vidmode)
   178 #define currently_fullscreen	(this->hidden->currently_fullscreen)
   179 #define switch_waiting		(this->hidden->switch_waiting)
   180 #define switch_time		(this->hidden->switch_time)
   181 #define blit_queued		(this->hidden->blit_queued)
   182 #define SDL_DisplayColormap	(this->hidden->DisplayColormap)
   183 #define SDL_PrivateColormap	(this->hidden->PrivateColormap)
   184 #define SDL_XColorMap		(this->hidden->XColorMap)
   185 #define SDL_XPixels		(this->hidden->XPixels)
   186 #define gamma_saved		(this->hidden->gamma_saved)
   187 #define gamma_changed		(this->hidden->gamma_changed)
   188 #define SDL_iconcolors		(this->hidden->iconcolors)
   189 
   190 /* Some versions of XFree86 have bugs - detect if this is one of them */
   191 #define BUGGY_XFREE86(condition, buggy_version) \
   192 ((strcmp(ServerVendor(SDL_Display), "The XFree86 Project, Inc") == 0) && \
   193  (VendorRelease(SDL_Display) condition buggy_version))
   194 
   195 #endif /* _SDL_x11video_h */