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 "wine/winuser16.h"
  26 #include "win.h"
  27 #include "ddrawi.h"
  28 #include "x11drv.h"
  29 #include "wine/debug.h"
  30
  31 WINE_DEFAULT_DEBUG_CHANNEL(x11drv);
  32
  33 /* data for resolution changing */
  34 static LPDDHALMODEINFO dd_modes;
  35 static unsigned int dd_mode_count;
  36
  37 static unsigned int max_width;
  38 static unsigned int max_height;
  39
  40 static const unsigned int widths[]  = {320, 400, 512, 640, 800, 1024, 1152, 1280, 1400, 1600};
  41 static const unsigned int heights[] = {200, 300, 384, 480, 600,  768,  864, 1024, 1050, 1200};
  42 #define NUM_DESKTOP_MODES (sizeof(widths) / sizeof(widths[0]))
  43
  44 /* create the mode structures */
  45 static void make_modes(void)
  46 {
  47     int i;
  48     /* original specified desktop size */
  49     X11DRV_Settings_AddOneMode(screen_width, screen_height, 0, 60);
  50     for (i=0; i<NUM_DESKTOP_MODES; i++)
  51     {
  52         if ( (widths[i] <= max_width) && (heights[i] <= max_height) )
  53         {
  54             if ( ( (widths[i] != max_width) || (heights[i] != max_height) ) &&
  55                  ( (widths[i] != screen_width) || (heights[i] != screen_height) ) )
  56             {
  57                 /* only add them if they are smaller than the root window and unique */
  58                 X11DRV_Settings_AddOneMode(widths[i], heights[i], 0, 60);
  59             }
  60         }
  61     }
  62     if ((max_width != screen_width) && (max_height != screen_height))
  63     {
  64         /* root window size (if different from desktop window) */
  65         X11DRV_Settings_AddOneMode(max_width, max_height, 0, 60);
  66     }
  67 }
  68
  69 /***********************************************************************
  70  *              X11DRV_resize_desktop
  71  *
  72  * Reset the desktop window size and WM hints
  73  */
  74 static int X11DRV_resize_desktop( unsigned int width, unsigned int height )
  75 {
  76     XSizeHints *size_hints;
  77     Display *display = thread_display();
  78     Window w = root_window;
  79     /* set up */
  80     wine_tsx11_lock();
  81     size_hints  = XAllocSizeHints();
  82     if (!size_hints)
  83     {
  84         ERR("Not enough memory for window manager hints.\n" );
  85         wine_tsx11_unlock();
  86         return 0;
  87     }
  88     size_hints->min_width = size_hints->max_width = width;
  89     size_hints->min_height = size_hints->max_height = height;
  90     size_hints->flags = PMinSize | PMaxSize | PSize;
  91
  92     /* do the work */
  93     XSetWMNormalHints( display, w, size_hints );
  94     XResizeWindow( display, w, width, height );
  95
  96     /* clean up */
  97     XFree( size_hints );
  98     XFlush( display );
  99     wine_tsx11_unlock();
 100     X11DRV_handle_desktop_resize( width, height );
 101     return 1;
 102 }
 103
 104 static int X11DRV_desktop_GetCurrentMode(void)
 105 {
 106     unsigned int i;
 107     DWORD dwBpp = screen_depth;
 108     if (dwBpp == 24) dwBpp = 32;
 109     for (i=0; i<dd_mode_count; i++)
 110     {
 111         if ( (screen_width == dd_modes[i].dwWidth) &&
 112              (screen_height == dd_modes[i].dwHeight) &&
 113              (dwBpp == dd_modes[i].dwBPP))
 114             return i;
 115     }
 116     ERR("In unknown mode, returning default\n");
 117     return 0;
 118 }
 119
 120 static LONG X11DRV_desktop_SetCurrentMode(int mode)
 121 {
 122     DWORD dwBpp = screen_depth;
 123     if (dwBpp == 24) dwBpp = 32;
 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     X11DRV_Settings_SetDefaultMode(0);
 161 }
 162
 163
 164 /***********************************************************************
 165  *              X11DRV_create_desktop
 166  *
 167  * Create the X11 desktop window for the desktop mode.
 168  */
 169 Window X11DRV_create_desktop( UINT width, UINT height )
 170 {
 171     XSetWindowAttributes win_attr;
 172     Window win;
 173     Display *display = thread_display();
 174
 175     wine_tsx11_lock();
 176
 177     /* Create window */
 178     win_attr.event_mask = ExposureMask | KeyPressMask | KeyReleaseMask |
 179                           PointerMotionMask | ButtonPressMask | ButtonReleaseMask;
 180     win_attr.cursor = XCreateFontCursor( display, XC_top_left_arrow );
 181
 182     if (visual != DefaultVisual( display, DefaultScreen(display) ))
 183         win_attr.colormap = XCreateColormap( display, DefaultRootWindow(display),
 184                                              visual, AllocNone );
 185     else
 186         win_attr.colormap = None;
 187
 188     win = XCreateWindow( display, DefaultRootWindow(display),
 189                          0, 0, width, height, 0, screen_depth, InputOutput, visual,
 190                          CWEventMask | CWCursor | CWColormap, &win_attr );
 191     XFlush( display );
 192     wine_tsx11_unlock();
 193     if (win != None) X11DRV_init_desktop( win, width, height );
 194     return win;
 195 }