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