dlls/winex11.drv/desktop.c

   1 /*
   2  * X11DRV desktop window handling
   3  *
   4  * Copyright 2001 Alexandre Julliard
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include "config.h"
  22 #include <X11/cursorfont.h>
  23 #include <X11/Xlib.h>
  24
  25 #include "win.h"
  26 #include "x11drv.h"
  27
  28 /* avoid conflict with field names in included win32 headers */
  29 #undef Status
  30 #include "ddrawi.h"
  31 #include "wine/debug.h"
  32
  33 WINE_DEFAULT_DEBUG_CHANNEL(x11drv);
  34
  35 /* data for resolution changing */
  36 static LPDDHALMODEINFO dd_modes;
  37 static unsigned int dd_mode_count;
  38
  39 static unsigned int max_width;
  40 static unsigned int max_height;
  41
  42 static const unsigned int widths[]  = {320, 400, 512, 640, 800, 1024, 1152, 1280, 1400, 1600};
  43 static const unsigned int heights[] = {200, 300, 384, 480, 600,  768,  864, 1024, 1050, 1200};
  44 #define NUM_DESKTOP_MODES (sizeof(widths) / sizeof(widths[0]))
  45
  46 /* create the mode structures */
  47 static void make_modes(void)
  48 {
  49     int i;
  50     /* original specified desktop size */
  51     X11DRV_Settings_AddOneMode(screen_width, screen_height, 0, 60);
  52     for (i=0; i<NUM_DESKTOP_MODES; i++)
  53     {
  54         if ( (widths[i] <= max_width) && (heights[i] <= max_height) )
  55         {
  56             if ( ( (widths[i] != max_width) || (heights[i] != max_height) ) &&
  57                  ( (widths[i] != screen_width) || (heights[i] != screen_height) ) )
  58             {
  59                 /* only add them if they are smaller than the root window and unique */
  60                 X11DRV_Settings_AddOneMode(widths[i], heights[i], 0, 60);
  61             }
  62         }
  63     }
  64     if ((max_width != screen_width) && (max_height != screen_height))
  65     {
  66         /* root window size (if different from desktop window) */
  67         X11DRV_Settings_AddOneMode(max_width, max_height, 0, 60);
  68     }
  69 }
  70
  71 /***********************************************************************
  72  *              X11DRV_resize_desktop
  73  *
  74  * Reset the desktop window size and WM hints
  75  */
  76 static int X11DRV_resize_desktop( unsigned int width, unsigned int height )
  77 {
  78     XSizeHints *size_hints;
  79     Display *display = thread_display();
  80     Window w = root_window;
  81     /* set up */
  82     wine_tsx11_lock();
  83     size_hints  = XAllocSizeHints();
  84     if (!size_hints)
  85     {
  86         ERR("Not enough memory for window manager hints.\n" );
  87         wine_tsx11_unlock();
  88         return 0;
  89     }
  90     size_hints->min_width = size_hints->max_width = width;
  91     size_hints->min_height = size_hints->max_height = height;
  92     size_hints->flags = PMinSize | PMaxSize | PSize;
  93
  94     /* do the work */
  95     XSetWMNormalHints( display, w, size_hints );
  96     XResizeWindow( display, w, width, height );
  97
  98     /* clean up */
  99     XFree( size_hints );
 100     XFlush( display );
 101     wine_tsx11_unlock();
 102     X11DRV_handle_desktop_resize( width, height );
 103     return 1;
 104 }
 105
 106 static int X11DRV_desktop_GetCurrentMode(void)
 107 {
 108     unsigned int i;
 109     DWORD dwBpp = screen_bpp;
 110     for (i=0; i<dd_mode_count; i++)
 111     {
 112         if ( (screen_width == dd_modes[i].dwWidth) &&
 113              (screen_height == dd_modes[i].dwHeight) &&
 114              (dwBpp == dd_modes[i].dwBPP))
 115             return i;
 116     }
 117     ERR("In unknown mode, returning default\n");
 118     return 0;
 119 }
 120
 121 static LONG X11DRV_desktop_SetCurrentMode(int mode)
 122 {
 123     DWORD dwBpp = screen_bpp;
 124     if (dwBpp != dd_modes[mode].dwBPP)
 125     {
 126         FIXME("Cannot change screen BPP from %d to %d\n", dwBpp, dd_modes[mode].dwBPP);
 127         /* Ignore the depth missmatch
 128          *
 129          * Some (older) applications require a specific bit depth, this will allow them
 130          * to run. X11drv performs a color depth conversion if needed.
 131          */
 132     }
 133     TRACE("Resizing Wine desktop window to %dx%d\n", dd_modes[mode].dwWidth, dd_modes[mode].dwHeight);
 134     X11DRV_resize_desktop(dd_modes[mode].dwWidth, dd_modes[mode].dwHeight);
 135     return DISP_CHANGE_SUCCESSFUL;
 136 }
 137
 138 /***********************************************************************
 139  *              X11DRV_init_desktop
 140  *
 141  * Setup the desktop when not using the root window.
 142  */
 143 void X11DRV_init_desktop( Window win, unsigned int width, unsigned int height )
 144 {
 145     root_window = win;
 146     max_width = screen_width;
 147     max_height = screen_height;
 148     screen_width  = width;
 149     screen_height = height;
 150     xinerama_init();
 151
 152     /* initialize the available resolutions */
 153     dd_modes = X11DRV_Settings_SetHandlers("desktop",
 154                                            X11DRV_desktop_GetCurrentMode,
 155                                            X11DRV_desktop_SetCurrentMode,
 156                                            NUM_DESKTOP_MODES+2, 1);
 157     make_modes();
 158     X11DRV_Settings_AddDepthModes();
 159     dd_mode_count = X11DRV_Settings_GetModeCount();
 160 }
 161
 162
 163 /***********************************************************************
 164  *              X11DRV_create_desktop
 165  *
 166  * Create the X11 desktop window for the desktop mode.
 167  */
 168 Window X11DRV_create_desktop( UINT width, UINT height )
 169 {
 170     XSetWindowAttributes win_attr;
 171     Window win;
 172     Display *display = thread_display();
 173
 174     wine_tsx11_lock();
 175
 176     /* Create window */
 177     win_attr.event_mask = ExposureMask | KeyPressMask | KeyReleaseMask |
 178                           PointerMotionMask | ButtonPressMask | ButtonReleaseMask;
 179     win_attr.cursor = XCreateFontCursor( display, XC_top_left_arrow );
 180
 181     if (visual != DefaultVisual( display, DefaultScreen(display) ))
 182         win_attr.colormap = XCreateColormap( display, DefaultRootWindow(display),
 183                                              visual, AllocNone );
 184     else
 185         win_attr.colormap = None;
 186
 187     win = XCreateWindow( display, DefaultRootWindow(display),
 188                          0, 0, width, height, 0, screen_depth, InputOutput, visual,
 189                          CWEventMask | CWCursor | CWColormap, &win_attr );
 190     XFlush( display );
 191     wine_tsx11_unlock();
 192     if (win != None) X11DRV_init_desktop( win, width, height );
 193     return win;
 194 }