dlls/ddraw/x11.c

   1 /*              DirectDraw using DGA or Xlib(XSHM)
   2  *
   3  * Copyright 1997-1999 Marcus Meissner
   4  * Copyright 1998 Lionel Ulmer (most of Direct3D stuff)
   5  */
   6 #include "config.h"
   7
   8 #include <unistd.h>
   9 #include <assert.h>
  10 #include <fcntl.h>
  11 #include <string.h>
  12 #include <stdio.h>
  13
  14 #include "winerror.h"
  15 #include "options.h"
  16 #include "monitor.h"
  17 #include "debugtools.h"
  18 #include "ddraw.h"
  19
  20 DEFAULT_DEBUG_CHANNEL(ddraw);
  21
  22 #include "x11_private.h"
  23
  24 #ifdef HAVE_LIBXXSHM
  25 int XShmErrorFlag = 0;
  26 #endif
  27
  28 static inline BOOL get_option( const char *name, BOOL def ) {
  29     return PROFILE_GetWineIniBool( "x11drv", name, def );
  30 }
  31
  32 static BOOL
  33 DDRAW_XSHM_Available(void) {
  34 #ifdef HAVE_LIBXXSHM
  35     if (get_option( "UseXShm", 1 )) {
  36         if (TSXShmQueryExtension(display)) {
  37             int         major,minor;
  38             Bool        shpix;
  39
  40             if (TSXShmQueryVersion(display, &major, &minor, &shpix))
  41                 return TRUE;
  42         }
  43     }
  44 #endif
  45     return FALSE;
  46 }
  47
  48 static HRESULT X11_Create( LPDIRECTDRAW *lplpDD ) {
  49     IDirectDrawImpl*    ddraw;
  50     int                 depth;
  51     x11_dd_private      *x11priv;
  52
  53     if (lplpDD == NULL) /* Testing ... this driver works all the time */
  54         return DD_OK;
  55
  56     *lplpDD = (LPDIRECTDRAW)HeapAlloc(
  57         GetProcessHeap(),
  58         HEAP_ZERO_MEMORY,
  59         sizeof(IDirectDrawImpl)
  60     );
  61     ddraw = (IDirectDrawImpl*)*lplpDD;
  62     ICOM_VTBL(ddraw)= &xlib_ddvt;
  63     ddraw->ref  = 1;
  64
  65     ddraw->d = HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sizeof(*(ddraw->d)));
  66     ddraw->d->ref = 1;
  67     ddraw->d->private   = HeapAlloc(
  68         GetProcessHeap(),
  69         HEAP_ZERO_MEMORY,
  70         sizeof(x11_dd_private)
  71     );
  72     x11priv = (x11_dd_private*)ddraw->d->private;
  73
  74     /* At DirectDraw creation, the depth is the default depth */
  75     depth = DefaultDepthOfScreen(X11DRV_GetXScreen());
  76
  77     switch (_common_depth_to_pixelformat(depth,(LPDIRECTDRAW)ddraw)) {
  78     case -2: ERR("no depth conversion mode for depth %d found\n",depth); break;
  79     case -1: WARN("No conversion needed for depth %d.\n",depth); break;
  80     case 0: MESSAGE("Conversion needed from %d.\n",depth); break;
  81     }
  82
  83     ddraw->d->height = MONITOR_GetHeight(&MONITOR_PrimaryMonitor);
  84     ddraw->d->width = MONITOR_GetWidth(&MONITOR_PrimaryMonitor);
  85 #ifdef HAVE_LIBXXSHM
  86     /* Test if XShm is available. */
  87     if ((x11priv->xshm_active = DDRAW_XSHM_Available())) {
  88         x11priv->xshm_compl = 0;
  89         TRACE("Using XShm extension.\n");
  90     }
  91 #endif
  92     return DD_OK;
  93 }
  94
  95 /* Where do these GUIDs come from?  mkuuid.
  96  * They exist solely to distinguish between the targets Wine support,
  97  * and should be different than any other GUIDs in existence.
  98  */
  99 static GUID X11_DirectDraw_GUID = { /* 1574a740-dc61-11d1-8407-f7875a7d1879 */
 100     0x1574a740,
 101     0xdc61,
 102     0x11d1,
 103     {0x84, 0x07, 0xf7, 0x87, 0x5a, 0x7d, 0x18, 0x79}
 104 };
 105
 106 ddraw_driver x11_driver = {
 107     &X11_DirectDraw_GUID,
 108     "display",
 109     "WINE X11 DirectDraw Driver",
 110     50,
 111     X11_Create
 112 };
 113
 114 DECL_GLOBAL_CONSTRUCTOR(X11_register) { ddraw_register_driver(&x11_driver); }