src/video/x11/SDL_x11video.h
author Sam Lantinga <slouken@lokigames.com>
Thu, 26 Apr 2001 16:45:43 +0000
changeset 0 74212992fb08
child 227 24878c14b391
permissions -rw-r--r--
Initial revision
     1 /*
     2     SDL - Simple DirectMedia Layer
     3     Copyright (C) 1997, 1998, 1999, 2000, 2001  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@devolution.com
    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 #ifndef NO_SHARED_MEMORY
    35 #include <sys/ipc.h>
    36 #include <sys/shm.h>
    37 #include <X11/extensions/XShm.h>
    38 #endif
    39 #ifdef XFREE86_DGAMOUSE
    40 #include <X11/extensions/xf86dga.h>
    41 #endif
    42 #ifdef XFREE86_VM
    43 #include <X11/extensions/xf86vmode.h>
    44 #ifdef XFREE86_VM_DYNAMIC_HACK
    45 #define XVidMode(func, args)	XF40VidMode##func args
    46 #else
    47 #define XVidMode(func, args)	XF86VidMode##func args
    48 #endif
    49 #endif /* XFREE86_VM */
    50 #include <string.h>
    51 
    52 #include "SDL_mouse.h"
    53 #include "SDL_sysvideo.h"
    54 
    55 /* Hidden "this" pointer for the video functions */
    56 #define _THIS	SDL_VideoDevice *this
    57 
    58 /* Private display data */
    59 struct SDL_PrivateVideoData {
    60     int local_X11;		/* Flag: true if local display */
    61     Display *X11_Display;	/* Used for events and window management */
    62     Display *GFX_Display;	/* Used for graphics and colormap stuff */
    63     Visual *SDL_Visual;		/* The visual used by our window */
    64     Window WMwindow;		/* Input window, managed by window manager */
    65     Window FSwindow;		/* Fullscreen window, completely unmanaged */
    66     Window SDL_Window;		/* Shared by both displays (no X security?) */
    67     Atom WM_DELETE_WINDOW;	/* "close-window" protocol atom */
    68     WMcursor *BlankCursor;	/* The invisible cursor */
    69 
    70     char *SDL_windowid;		/* Flag: true if we have been passed a window */
    71 
    72     /* Direct Graphics Access extension information */
    73     int using_dga;
    74 
    75 #ifndef NO_SHARED_MEMORY
    76     /* MIT shared memory extension information */
    77     int use_mitshm;
    78     XShmSegmentInfo shminfo;
    79 #endif
    80 
    81     /* The variables used for displaying graphics */
    82     XImage *Ximage;		/* The X image for our window */
    83     GC	gc;			/* The graphic context for drawing */
    84     int swap_pixels;		/* Flag: true if display is swapped endian */
    85 
    86     /* The current width and height of the fullscreen mode */
    87     int current_w;
    88     int current_h;
    89 
    90     /* Support for internal mouse warping */
    91     struct {
    92         int x;
    93         int y;
    94     } mouse_last;
    95     struct {
    96         int numerator;
    97         int denominator;
    98         int threshold;
    99     } mouse_accel;
   100     int mouse_relative;
   101 
   102     /* The current list of available video modes */
   103     SDL_Rect **modelist;
   104 
   105     /* available visuals of interest to us, sorted deepest first */
   106     struct {
   107 	Visual *visual;
   108 	int depth;		/* number of significant bits/pixel */
   109 	int bpp;		/* pixel quantum in bits */
   110     } visuals[2*5];		/* at most 2 entries for 8, 15, 16, 24, 32 */
   111     int nvisuals;
   112 
   113     Visual *vis;		/* current visual in use */
   114     int depth;			/* current visual depth (not bpp) */
   115 
   116     /* Variables used by the X11 video mode code */
   117 #ifdef XFREE86_VM
   118     XF86VidModeModeInfo saved_mode;
   119     struct {
   120         int x, y;
   121     } saved_view;
   122 #endif
   123     int use_vidmode;
   124     int currently_fullscreen;
   125 
   126     /* Automatic mode switching support (entering/leaving fullscreen) */
   127     Uint32 switch_waiting;
   128     Uint32 switch_time;
   129 
   130     /* Prevent too many XSync() calls */
   131     int blit_queued;
   132 
   133     /* Colormap handling */
   134     Colormap DisplayColormap;	/* The default display colormap */
   135     Colormap XColorMap;		/* The current window colormap */
   136     int *XPixels;		/* pixels value allocation counts */
   137     float gamma_saved[3];	/* Saved gamma values for VidMode gamma */
   138     int gamma_changed;		/* flag: has VidMode gamma been modified? */
   139 
   140     short *iconcolors;		/* List of colors used by the icon */
   141 };
   142 
   143 /* Old variable names */
   144 #define local_X11		(this->hidden->local_X11)
   145 #define SDL_Display		(this->hidden->X11_Display)
   146 #define GFX_Display		(this->hidden->GFX_Display)
   147 #define SDL_Screen		DefaultScreen(this->hidden->X11_Display)
   148 
   149 #define SDL_Visual		(this->hidden->vis)
   150 
   151 #define SDL_Root		RootWindow(SDL_Display, SDL_Screen)
   152 #define WMwindow		(this->hidden->WMwindow)
   153 #define FSwindow		(this->hidden->FSwindow)
   154 #define SDL_Window		(this->hidden->SDL_Window)
   155 #define WM_DELETE_WINDOW	(this->hidden->WM_DELETE_WINDOW)
   156 #define SDL_BlankCursor		(this->hidden->BlankCursor)
   157 #define SDL_windowid		(this->hidden->SDL_windowid)
   158 #define using_dga		(this->hidden->using_dga)
   159 #define use_mitshm		(this->hidden->use_mitshm)
   160 #define shminfo			(this->hidden->shminfo)
   161 #define SDL_Ximage		(this->hidden->Ximage)
   162 #define SDL_GC			(this->hidden->gc)
   163 #define swap_pixels		(this->hidden->swap_pixels)
   164 #define current_w		(this->hidden->current_w)
   165 #define current_h		(this->hidden->current_h)
   166 #define mouse_last		(this->hidden->mouse_last)
   167 #define mouse_accel		(this->hidden->mouse_accel)
   168 #define mouse_relative		(this->hidden->mouse_relative)
   169 #define SDL_modelist		(this->hidden->modelist)
   170 #define saved_mode		(this->hidden->saved_mode)
   171 #define saved_view		(this->hidden->saved_view)
   172 #define use_vidmode		(this->hidden->use_vidmode)
   173 #define currently_fullscreen	(this->hidden->currently_fullscreen)
   174 #define switch_waiting		(this->hidden->switch_waiting)
   175 #define switch_time		(this->hidden->switch_time)
   176 #define blit_queued		(this->hidden->blit_queued)
   177 #define SDL_DisplayColormap	(this->hidden->DisplayColormap)
   178 #define SDL_PrivateColormap	(this->hidden->PrivateColormap)
   179 #define SDL_XColorMap		(this->hidden->XColorMap)
   180 #define SDL_XPixels		(this->hidden->XPixels)
   181 #define gamma_saved		(this->hidden->gamma_saved)
   182 #define gamma_changed		(this->hidden->gamma_changed)
   183 #define SDL_iconcolors		(this->hidden->iconcolors)
   184 
   185 /* Some versions of XFree86 have bugs - detect if this is one of them */
   186 #define BUGGY_XFREE86(condition, buggy_version) \
   187 ((strcmp(ServerVendor(SDL_Display), "The XFree86 Project, Inc") == 0) && \
   188  (VendorRelease(SDL_Display) condition buggy_version))
   189 
   190 #endif /* _SDL_x11video_h */