dlls/ddraw/dga2.c

   1 /*              DirectDraw using DGA2
   2  *
   3  * Based (well, plagiarized :-) ) on Marcus' dga.c
   4  */
   5
   6 #include "config.h"
   7 #include "winerror.h"
   8
   9 #include <unistd.h>
  10 #include <assert.h>
  11 #ifdef HAVE_SYS_SIGNAL_H
  12 # include <sys/signal.h>
  13 #endif
  14 #include <fcntl.h>
  15 #include <string.h>
  16 #include <stdio.h>
  17
  18 #include "gdi.h"
  19 #include "heap.h"
  20 #include "dc.h"
  21 #include "win.h"
  22 #include "wine/exception.h"
  23 #include "ddraw.h"
  24 #include "d3d.h"
  25 #include "debugtools.h"
  26 #include "spy.h"
  27 #include "message.h"
  28 #include "options.h"
  29
  30 #include "dga2_private.h"
  31
  32 DEFAULT_DEBUG_CHANNEL(ddraw);
  33
  34 static inline BOOL get_option( const char *name, BOOL def ) {
  35     return PROFILE_GetWineIniBool( "x11drv", name, def );
  36 }
  37
  38 static BYTE
  39 DDRAW_DGA2_Available(void)
  40 {
  41     int evbase, evret, majver, minver;
  42     static BYTE return_value = 0xFF;
  43
  44     /* This prevents from probing X times for DGA */
  45     if (return_value != 0xFF)
  46         return return_value;
  47
  48     if (!get_option( "UseDGA", 1 )) {
  49         TRACE("UseDGA disabled.\n");
  50         return_value = 0;
  51         return 0;
  52     }
  53
  54     /* First, query the extenstion and its version */
  55     if (!TSXF86DGAQueryExtension(display,&evbase,&evret)) {
  56         TRACE("DGA extension not detected.\n");
  57         return_value = 0;
  58         return 0;
  59     }
  60
  61     if (!TSXF86DGAQueryVersion(display,&majver,&minver)) {
  62         TRACE("DGA version not detected.\n");
  63         return_value = 0;
  64         return 0;
  65     }
  66
  67     if (majver >= 2) {
  68         /* We have DGA 2.0 available ! */
  69         if (TSXDGAOpenFramebuffer(display, DefaultScreen(display))) {
  70             TSXDGACloseFramebuffer(display, DefaultScreen(display));
  71             return_value = 2;
  72         } else
  73             return_value = 0;
  74         return return_value;
  75     }
  76
  77     return 0;
  78 }
  79
  80 HRESULT
  81 DGA2_Create( LPDIRECTDRAW *lplpDD ) {
  82     IDirectDrawImpl*            ddraw;
  83     dga2_dd_private*    dgpriv;
  84     int  major,minor;
  85     int  dga_version;
  86     XDGAMode *modes;
  87     int i, num_modes;
  88     int mode_to_use = 0;
  89
  90     /* Get DGA availability / version */
  91     dga_version = DDRAW_DGA2_Available();
  92     if (dga_version == 0)
  93         return DDERR_GENERIC;
  94
  95     /* If we were just testing ... return OK */
  96     if (lplpDD == NULL)
  97         return DD_OK;
  98
  99     ddraw = (IDirectDrawImpl*)HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sizeof(IDirectDrawImpl));
 100     *lplpDD = (LPDIRECTDRAW)ddraw;
 101     ddraw->ref = 1;
 102     ICOM_VTBL(ddraw) = &dga2_ddvt;
 103
 104     ddraw->d = HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sizeof(*(ddraw->d)));
 105     ddraw->d->ref = 1;
 106     ddraw->d->private = HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sizeof(dga2_dd_private));
 107
 108     dgpriv = (dga2_dd_private*)ddraw->d->private;
 109
 110     TSXDGAQueryVersion(display,&major,&minor);
 111     TRACE("XDGA is version %d.%d\n",major,minor);
 112
 113     TRACE("Opening the frame buffer.\n");
 114     if (!TSXDGAOpenFramebuffer(display, DefaultScreen(display))) {
 115       ERR("Error opening the frame buffer !!!\n");
 116       return DDERR_GENERIC;
 117     }
 118
 119     /* List all available modes */
 120     modes = TSXDGAQueryModes(display, DefaultScreen(display), &num_modes);
 121     dgpriv->modes       = modes;
 122     dgpriv->num_modes   = num_modes;
 123
 124     TRACE("Available modes :\n");
 125     for (i = 0; i < num_modes; i++) {
 126       if (TRACE_ON(ddraw)) {
 127         DPRINTF("   %d) - %s (FB: %dx%d / VP: %dx%d) - depth %d -",
 128                 modes[i].num,
 129                 modes[i].name, modes[i].imageWidth, modes[i].imageHeight,
 130                 modes[i].viewportWidth, modes[i].viewportHeight,
 131                 modes[i].depth
 132                 );
 133 #define XX(x) if (modes[i].flags & x) DPRINTF(" "#x" ");
 134         XX(XDGAConcurrentAccess);
 135         XX(XDGASolidFillRect);
 136         XX(XDGABlitRect);
 137         XX(XDGABlitTransRect);
 138         XX(XDGAPixmap);
 139 #undef XX
 140         DPRINTF("\n");
 141       }
 142       if ((GetSystemMetrics(SM_CYSCREEN) == modes[i].viewportHeight) &&
 143           (GetSystemMetrics(SM_CXSCREEN) == modes[i].viewportWidth) &&
 144           (X11DRV_GetDepth() == modes[i].depth)
 145           ) {
 146         mode_to_use = modes[i].num;
 147       }
 148     }
 149     if (mode_to_use == 0) {
 150       ERR("Could not find mode !\n");
 151       mode_to_use = 1;
 152     } else {
 153       TRACE("Using mode number %d\n", mode_to_use);
 154     }
 155
 156     dgpriv->DGA.InstallColormap = TSXDGAInstallColormap;
 157
 158     /* Initialize the frame buffer */
 159     _DGA2_Initialize_FrameBuffer(ddraw, mode_to_use);
 160
 161     /* Register frame buffer with the kernel, it is a potential DIB section */
 162     VirtualAlloc(dgpriv->DGA.fb_addr, dgpriv->DGA.fb_memsize, MEM_RESERVE|MEM_SYSTEM, PAGE_READWRITE);
 163
 164     /* Set the input handling for relative mouse movements */
 165     X11DRV_EVENT_SetInputMethod(X11DRV_INPUT_RELATIVE);
 166
 167     return DD_OK;
 168 }
 169
 170 /* Where do these GUIDs come from?  mkuuid.
 171  * They exist solely to distinguish between the targets Wine support,
 172  * and should be different than any other GUIDs in existence.
 173  */
 174 static GUID DGA2_DirectDraw_GUID = { /* e2dcb020-dc60-11d1-8407-9714f5d50803 */
 175     0xe2dcb020,
 176     0xdc60,
 177     0x11d1,
 178     {0x84, 0x07, 0x97, 0x14, 0xf5, 0xd5, 0x08, 0x03}
 179 };
 180
 181 ddraw_driver dga2_driver = {
 182     &DGA2_DirectDraw_GUID,
 183     "display",
 184     "WINE XF86DGA2 DirectDraw Driver",
 185     150,
 186     DGA2_Create
 187 };
 188
 189 DECL_GLOBAL_CONSTRUCTOR(DGA2_register) { ddraw_register_driver(&dga2_driver); }