dlls/x11drv/mouse.c

   1 /*
   2  * X11 mouse driver
   3  *
   4  * Copyright 1998 Ulrich Weigand
   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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #include "config.h"
  22
  23 #include "ts_xlib.h"
  24 #ifdef HAVE_LIBXXF86DGA2
  25 #include <X11/extensions/xf86dga.h>
  26 #endif
  27 #include <stdarg.h>
  28
  29 #define NONAMELESSUNION
  30 #define NONAMELESSSTRUCT
  31 #include "windef.h"
  32 #include "winbase.h"
  33 #include "wine/winuser16.h"
  34
  35 #include "x11drv.h"
  36 #include "wine/debug.h"
  37
  38 WINE_DEFAULT_DEBUG_CHANNEL(cursor);
  39
  40 /**********************************************************************/
  41
  42 #define NB_BUTTONS   5     /* Windows can handle 3 buttons and the wheel too */
  43
  44 static const UINT button_down_flags[NB_BUTTONS] =
  45 {
  46     MOUSEEVENTF_LEFTDOWN,
  47     MOUSEEVENTF_MIDDLEDOWN,
  48     MOUSEEVENTF_RIGHTDOWN,
  49     MOUSEEVENTF_WHEEL,
  50     MOUSEEVENTF_WHEEL
  51 };
  52
  53 static const UINT button_up_flags[NB_BUTTONS] =
  54 {
  55     MOUSEEVENTF_LEFTUP,
  56     MOUSEEVENTF_MIDDLEUP,
  57     MOUSEEVENTF_RIGHTUP,
  58     0,
  59     0
  60 };
  61
  62 static BYTE *pKeyStateTable;
  63
  64
  65 /***********************************************************************
  66  *              get_coords
  67  *
  68  * get the coordinates of a mouse event
  69  */
  70 static void get_coords( HWND *hwnd, Window window, int x, int y, POINT *pt )
  71 {
  72     struct x11drv_win_data *data;
  73     WND *win;
  74
  75     if (!(win = WIN_GetPtr( *hwnd )) || win == WND_OTHER_PROCESS) return;
  76     data = win->pDriverData;
  77
  78     if (window == data->whole_window)
  79     {
  80         x -= data->client_rect.left;
  81         y -= data->client_rect.top;
  82     }
  83     WIN_ReleasePtr( win );
  84
  85     pt->x = x;
  86     pt->y = y;
  87     if (*hwnd != GetDesktopWindow())
  88     {
  89         ClientToScreen( *hwnd, pt );
  90         *hwnd = GetAncestor( *hwnd, GA_ROOT );
  91     }
  92 }
  93
  94
  95 /***********************************************************************
  96  *              update_button_state
  97  *
  98  * Update the button state with what X provides us
  99  */
 100 static void update_button_state( unsigned int state )
 101 {
 102     pKeyStateTable[VK_LBUTTON] = (state & Button1Mask ? 0x80 : 0);
 103     pKeyStateTable[VK_MBUTTON] = (state & Button2Mask ? 0x80 : 0);
 104     pKeyStateTable[VK_RBUTTON] = (state & Button3Mask ? 0x80 : 0);
 105 }
 106
 107
 108 /***********************************************************************
 109  *              update_key_state
 110  *
 111  * Update the key state with what X provides us
 112  */
 113 static void update_key_state( unsigned int state )
 114 {
 115     pKeyStateTable[VK_SHIFT]   = (state & ShiftMask   ? 0x80 : 0);
 116     pKeyStateTable[VK_CONTROL] = (state & ControlMask ? 0x80 : 0);
 117 }
 118
 119
 120 /***********************************************************************
 121  *              send_mouse_event
 122  */
 123 static void send_mouse_event( HWND hwnd, DWORD flags, DWORD posX, DWORD posY,
 124                               DWORD data, Time time )
 125 {
 126     INPUT input;
 127
 128     TRACE("(%04lX,%ld,%ld)\n", flags, posX, posY );
 129
 130     if (flags & MOUSEEVENTF_ABSOLUTE)
 131     {
 132         int width  = GetSystemMetrics( SM_CXSCREEN );
 133         int height = GetSystemMetrics( SM_CYSCREEN );
 134         /* Relative mouse movements seem not to be scaled as absolute ones */
 135         posX = (((long)posX << 16) + width-1)  / width;
 136         posY = (((long)posY << 16) + height-1) / height;
 137     }
 138
 139     input.type             = WINE_INTERNAL_INPUT_MOUSE;
 140     input.u.mi.dx          = posX;
 141     input.u.mi.dy          = posY;
 142     input.u.mi.mouseData   = data;
 143     input.u.mi.dwFlags     = flags;
 144     input.u.mi.time        = time - X11DRV_server_startticks;
 145     input.u.mi.dwExtraInfo = (ULONG_PTR)hwnd;
 146     SendInput( 1, &input, sizeof(input) );
 147 }
 148
 149
 150 /***********************************************************************
 151  *              update_cursor
 152  *
 153  * Update the cursor of a window on a mouse event.
 154  */
 155 static void update_cursor( HWND hwnd, Window win )
 156 {
 157     struct x11drv_thread_data *data = x11drv_thread_data();
 158
 159     if (win == X11DRV_get_client_window( hwnd ))
 160         win = X11DRV_get_whole_window( hwnd );  /* always set cursor on whole window */
 161
 162     if (data->cursor_window != win)
 163     {
 164         data->cursor_window = win;
 165         if (data->cursor) TSXDefineCursor( data->display, win, data->cursor );
 166     }
 167 }
 168
 169
 170 /***********************************************************************
 171  *              create_cursor
 172  *
 173  * Create an X cursor from a Windows one.
 174  */
 175 static Cursor create_cursor( Display *display, CURSORICONINFO *ptr )
 176 {
 177     Pixmap pixmapBits, pixmapMask, pixmapMaskInv, pixmapAll;
 178     XColor fg, bg;
 179     Cursor cursor = None;
 180
 181     if (!ptr)  /* Create an empty cursor */
 182     {
 183         static const char data[] = { 0 };
 184
 185         bg.red = bg.green = bg.blue = 0x0000;
 186         pixmapBits = XCreateBitmapFromData( display, root_window, data, 1, 1 );
 187         if (pixmapBits)
 188         {
 189             cursor = XCreatePixmapCursor( display, pixmapBits, pixmapBits,
 190                                           &bg, &bg, 0, 0 );
 191             XFreePixmap( display, pixmapBits );
 192         }
 193     }
 194     else  /* Create the X cursor from the bits */
 195     {
 196         XImage *image;
 197         GC gc;
 198
 199         TRACE("Bitmap %dx%d planes=%d bpp=%d bytesperline=%d\n",
 200             ptr->nWidth, ptr->nHeight, ptr->bPlanes, ptr->bBitsPerPixel,
 201             ptr->nWidthBytes);
 202         /* Create a pixmap and transfer all the bits to it */
 203
 204         /* NOTE: Following hack works, but only because XFree depth
 205          *       1 images really use 1 bit/pixel (and so the same layout
 206          *       as the Windows cursor data). Perhaps use a more generic
 207          *       algorithm here.
 208          */
 209         /* This pixmap will be written with two bitmaps. The first is
 210          *  the mask and the second is the image.
 211          */
 212         if (!(pixmapAll = XCreatePixmap( display, root_window,
 213                   ptr->nWidth, ptr->nHeight * 2, 1 )))
 214             return 0;
 215         if (!(image = XCreateImage( display, visual,
 216                 1, ZPixmap, 0, (char *)(ptr + 1), ptr->nWidth,
 217                 ptr->nHeight * 2, 16, ptr->nWidthBytes/ptr->bBitsPerPixel)))
 218         {
 219             XFreePixmap( display, pixmapAll );
 220             return 0;
 221         }
 222         gc = XCreateGC( display, pixmapAll, 0, NULL );
 223         XSetGraphicsExposures( display, gc, False );
 224         image->byte_order = MSBFirst;
 225         image->bitmap_bit_order = MSBFirst;
 226         image->bitmap_unit = 16;
 227         _XInitImageFuncPtrs(image);
 228         if (ptr->bPlanes * ptr->bBitsPerPixel == 1)
 229         {
 230             /* A plain old white on black cursor. */
 231             fg.red = fg.green = fg.blue = 0xffff;
 232             bg.red = bg.green = bg.blue = 0x0000;
 233             XPutImage( display, pixmapAll, gc, image,
 234                 0, 0, 0, 0, ptr->nWidth, ptr->nHeight * 2 );
 235         }
 236         else
 237         {
 238             int     rbits, gbits, bbits, red, green, blue;
 239             int     rfg, gfg, bfg, rbg, gbg, bbg;
 240             int     rscale, gscale, bscale;
 241             int     x, y, xmax, ymax, bitIndex, byteIndex, xorIndex;
 242             unsigned char *theMask, *theImage, theChar;
 243             int     threshold, fgBits, bgBits, bitShifted;
 244             BYTE    pXorBits[128];   /* Up to 32x32 icons */
 245
 246             switch (ptr->bBitsPerPixel)
 247             {
 248             case 24:
 249                 rbits = 8;
 250                 gbits = 8;
 251                 bbits = 8;
 252                 threshold = 0x40;
 253                 break;
 254             case 16:
 255                 rbits = 5;
 256                 gbits = 6;
 257                 bbits = 5;
 258                 threshold = 0x40;
 259                 break;
 260             default:
 261                 FIXME("Currently no support for cursors with %d bits per pixel\n",
 262                   ptr->bBitsPerPixel);
 263                 XFreePixmap( display, pixmapAll );
 264                 XFreeGC( display, gc );
 265                 image->data = NULL;
 266                 XDestroyImage( image );
 267                 return 0;
 268             }
 269             /* The location of the mask. */
 270             theMask = (char *)(ptr + 1);
 271             /* The mask should still be 1 bit per pixel. The color image
 272              * should immediately follow the mask.
 273              */
 274             theImage = &theMask[ptr->nWidth/8 * ptr->nHeight];
 275             rfg = gfg = bfg = rbg = gbg = bbg = 0;
 276             bitIndex = 0;
 277             byteIndex = 0;
 278             xorIndex = 0;
 279             fgBits = 0;
 280             bitShifted = 0x01;
 281             xmax = (ptr->nWidth > 32) ? 32 : ptr->nWidth;
 282             if (ptr->nWidth > 32) {
 283                 ERR("Got a %dx%d cursor. Cannot handle larger than 32x32.\n",
 284                   ptr->nWidth, ptr->nHeight);
 285             }
 286             ymax = (ptr->nHeight > 32) ? 32 : ptr->nHeight;
 287
 288             memset(pXorBits, 0, 128);
 289             for (y=0; y<ymax; y++)
 290             {
 291                 for (x=0; x<xmax; x++)
 292                 {
 293                         red = green = blue = 0;
 294                         switch (ptr->bBitsPerPixel)
 295                         {
 296                         case 24:
 297                             theChar = theImage[byteIndex++];
 298                             blue = theChar;
 299                             theChar = theImage[byteIndex++];
 300                             green = theChar;
 301                             theChar = theImage[byteIndex++];
 302                             red = theChar;
 303                             break;
 304                         case 16:
 305                             theChar = theImage[byteIndex++];
 306                             blue = theChar & 0x1F;
 307                             green = (theChar & 0xE0) >> 5;
 308                             theChar = theImage[byteIndex++];
 309                             green |= (theChar & 0x07) << 3;
 310                             red = (theChar & 0xF8) >> 3;
 311                             break;
 312                         }
 313
 314                     if (red+green+blue > threshold)
 315                     {
 316                         rfg += red;
 317                         gfg += green;
 318                         bfg += blue;
 319                         fgBits++;
 320                         pXorBits[xorIndex] |= bitShifted;
 321                     }
 322                     else
 323                     {
 324                         rbg += red;
 325                         gbg += green;
 326                         bbg += blue;
 327                     }
 328                     if (x%8 == 7)
 329                     {
 330                         bitShifted = 0x01;
 331                         xorIndex++;
 332                     }
 333                     else
 334                         bitShifted = bitShifted << 1;
 335                 }
 336             }
 337             rscale = 1 << (16 - rbits);
 338             gscale = 1 << (16 - gbits);
 339             bscale = 1 << (16 - bbits);
 340             if (fgBits)
 341             {
 342                 fg.red   = rfg * rscale / fgBits;
 343                 fg.green = gfg * gscale / fgBits;
 344                 fg.blue  = bfg * bscale / fgBits;
 345             }
 346             else fg.red = fg.green = fg.blue = 0;
 347             bgBits = xmax * ymax - fgBits;
 348             if (bgBits)
 349             {
 350                 bg.red   = rbg * rscale / bgBits;
 351                 bg.green = gbg * gscale / bgBits;
 352                 bg.blue  = bbg * bscale / bgBits;
 353             }
 354             else bg.red = bg.green = bg.blue = 0;
 355             pixmapBits = XCreateBitmapFromData( display, root_window, pXorBits, xmax, ymax );
 356             if (!pixmapBits)
 357             {
 358                 XFreePixmap( display, pixmapAll );
 359                 XFreeGC( display, gc );
 360                 image->data = NULL;
 361                 XDestroyImage( image );
 362                 return 0;
 363             }
 364
 365             /* Put the mask. */
 366             XPutImage( display, pixmapAll, gc, image,
 367                    0, 0, 0, 0, ptr->nWidth, ptr->nHeight );
 368             XSetFunction( display, gc, GXcopy );
 369             /* Put the image */
 370             XCopyArea( display, pixmapBits, pixmapAll, gc,
 371                        0, 0, xmax, ymax, 0, ptr->nHeight );
 372             XFreePixmap( display, pixmapBits );
 373         }
 374         image->data = NULL;
 375         XDestroyImage( image );
 376
 377         /* Now create the 2 pixmaps for bits and mask */
 378
 379         pixmapBits = XCreatePixmap( display, root_window, ptr->nWidth, ptr->nHeight, 1 );
 380         pixmapMask = XCreatePixmap( display, root_window, ptr->nWidth, ptr->nHeight, 1 );
 381         pixmapMaskInv = XCreatePixmap( display, root_window, ptr->nWidth, ptr->nHeight, 1 );
 382
 383         /* Make sure everything went OK so far */
 384
 385         if (pixmapBits && pixmapMask && pixmapMaskInv)
 386         {
 387             POINT hotspot;
 388
 389             /* We have to do some magic here, as cursors are not fully
 390              * compatible between Windows and X11. Under X11, there
 391              * are only 3 possible color cursor: black, white and
 392              * masked. So we map the 4th Windows color (invert the
 393              * bits on the screen) to black and an additional white bit on
 394              * an other place (+1,+1). This require some boolean arithmetic:
 395              *
 396              *         Windows          |          X11
 397              * And    Xor      Result   |   Bits     Mask     Result
 398              *  0      0     black      |    0        1     background
 399              *  0      1     white      |    1        1     foreground
 400              *  1      0     no change  |    X        0     no change
 401              *  1      1     inverted   |    0        1     background
 402              *
 403              * which gives:
 404              *  Bits = not 'And' and 'Xor' or 'And2' and 'Xor2'
 405              *  Mask = not 'And' or 'Xor' or 'And2' and 'Xor2'
 406              *
 407              * FIXME: apparently some servers do support 'inverted' color.
 408              * I don't know if it's correct per the X spec, but maybe
 409              * we ought to take advantage of it.  -- AJ
 410              */
 411             XSetFunction( display, gc, GXcopy );
 412             XCopyArea( display, pixmapAll, pixmapBits, gc,
 413                        0, 0, ptr->nWidth, ptr->nHeight, 0, 0 );
 414             XCopyArea( display, pixmapAll, pixmapMask, gc,
 415                        0, 0, ptr->nWidth, ptr->nHeight, 0, 0 );
 416             XCopyArea( display, pixmapAll, pixmapMaskInv, gc,
 417                        0, 0, ptr->nWidth, ptr->nHeight, 0, 0 );
 418             XSetFunction( display, gc, GXand );
 419             XCopyArea( display, pixmapAll, pixmapMaskInv, gc,
 420                        0, ptr->nHeight, ptr->nWidth, ptr->nHeight, 0, 0 );
 421             XSetFunction( display, gc, GXandReverse );
 422             XCopyArea( display, pixmapAll, pixmapBits, gc,
 423                        0, ptr->nHeight, ptr->nWidth, ptr->nHeight, 0, 0 );
 424             XSetFunction( display, gc, GXorReverse );
 425             XCopyArea( display, pixmapAll, pixmapMask, gc,
 426                        0, ptr->nHeight, ptr->nWidth, ptr->nHeight, 0, 0 );
 427             /* Additional white */
 428             XSetFunction( display, gc, GXor );
 429             XCopyArea( display, pixmapMaskInv, pixmapMask, gc,
 430                        0, 0, ptr->nWidth, ptr->nHeight, 1, 1 );
 431             XCopyArea( display, pixmapMaskInv, pixmapBits, gc,
 432                        0, 0, ptr->nWidth, ptr->nHeight, 1, 1 );
 433             XSetFunction( display, gc, GXcopy );
 434
 435             /* Make sure hotspot is valid */
 436             hotspot.x = ptr->ptHotSpot.x;
 437             hotspot.y = ptr->ptHotSpot.y;
 438             if (hotspot.x < 0 || hotspot.x >= ptr->nWidth ||
 439                 hotspot.y < 0 || hotspot.y >= ptr->nHeight)
 440             {
 441                 hotspot.x = ptr->nWidth / 2;
 442                 hotspot.y = ptr->nHeight / 2;
 443             }
 444             cursor = XCreatePixmapCursor( display, pixmapBits, pixmapMask,
 445                                           &fg, &bg, hotspot.x, hotspot.y );
 446         }
 447
 448         /* Now free everything */
 449
 450         if (pixmapAll) XFreePixmap( display, pixmapAll );
 451         if (pixmapBits) XFreePixmap( display, pixmapBits );
 452         if (pixmapMask) XFreePixmap( display, pixmapMask );
 453         if (pixmapMaskInv) XFreePixmap( display, pixmapMaskInv );
 454         XFreeGC( display, gc );
 455     }
 456     return cursor;
 457 }
 458
 459
 460 /***********************************************************************
 461  *              SetCursor (X11DRV.@)
 462  */
 463 void X11DRV_SetCursor( CURSORICONINFO *lpCursor )
 464 {
 465     Cursor cursor;
 466
 467     if (root_window != DefaultRootWindow(gdi_display))
 468     {
 469         /* If in desktop mode, set the cursor on the desktop window */
 470
 471         wine_tsx11_lock();
 472         cursor = create_cursor( gdi_display, lpCursor );
 473         if (cursor)
 474         {
 475             XDefineCursor( gdi_display, root_window, cursor );
 476             /* Make the change take effect immediately */
 477             XFlush(gdi_display);
 478             XFreeCursor( gdi_display, cursor );
 479         }
 480         wine_tsx11_unlock();
 481     }
 482     else /* set the same cursor for all top-level windows of the current thread */
 483     {
 484         struct x11drv_thread_data *data = x11drv_thread_data();
 485
 486         wine_tsx11_lock();
 487         cursor = create_cursor( data->display, lpCursor );
 488         if (cursor)
 489         {
 490             if (data->cursor) XFreeCursor( data->display, data->cursor );
 491             data->cursor = cursor;
 492             if (data->cursor_window)
 493             {
 494                 XDefineCursor( data->display, data->cursor_window, cursor );
 495                 /* Make the change take effect immediately */
 496                 XFlush( data->display );
 497             }
 498         }
 499         wine_tsx11_unlock();
 500     }
 501 }
 502
 503 /***********************************************************************
 504  *              SetCursorPos (X11DRV.@)
 505  */
 506 void X11DRV_SetCursorPos( INT x, INT y )
 507 {
 508     Display *display = thread_display();
 509
 510     TRACE( "warping to (%d,%d)\n", x, y );
 511
 512     wine_tsx11_lock();
 513     XWarpPointer( display, root_window, root_window, 0, 0, 0, 0, x, y );
 514     XFlush( display ); /* just in case */
 515     wine_tsx11_unlock();
 516 }
 517
 518 /***********************************************************************
 519  *              GetCursorPos (X11DRV.@)
 520  */
 521 void X11DRV_GetCursorPos(LPPOINT pos)
 522 {
 523   Display *display = thread_display();
 524   Window root, child;
 525   int rootX, rootY, winX, winY;
 526   unsigned int xstate;
 527
 528   if (!TSXQueryPointer( display, root_window, &root, &child,
 529                         &rootX, &rootY, &winX, &winY, &xstate ))
 530     return;
 531
 532   update_key_state( xstate );
 533   update_button_state( xstate );
 534   TRACE("pointer at (%d,%d)\n", winX, winY );
 535   pos->x = winX;
 536   pos->y = winY;
 537 }
 538
 539 /***********************************************************************
 540  *              InitMouse (X11DRV.@)
 541  */
 542 void X11DRV_InitMouse( BYTE *key_state_table )
 543 {
 544     pKeyStateTable = key_state_table;
 545 }
 546
 547
 548 /***********************************************************************
 549  *           X11DRV_ButtonPress
 550  */
 551 void X11DRV_ButtonPress( HWND hwnd, XButtonEvent *event )
 552 {
 553     int buttonNum = event->button - 1;
 554     WORD wData = 0;
 555     POINT pt;
 556
 557     if (buttonNum >= NB_BUTTONS) return;
 558     if (!hwnd) return;
 559
 560     update_cursor( hwnd, event->window );
 561     get_coords( &hwnd, event->window, event->x, event->y, &pt );
 562
 563     switch (buttonNum)
 564     {
 565     case 3:
 566         wData = WHEEL_DELTA;
 567         break;
 568     case 4:
 569         wData = -WHEEL_DELTA;
 570         break;
 571     }
 572     update_key_state( event->state );
 573     send_mouse_event( hwnd, button_down_flags[buttonNum] | MOUSEEVENTF_ABSOLUTE,
 574                       pt.x, pt.y, wData, event->time );
 575 }
 576
 577
 578 /***********************************************************************
 579  *           X11DRV_ButtonRelease
 580  */
 581 void X11DRV_ButtonRelease( HWND hwnd, XButtonEvent *event )
 582 {
 583     int buttonNum = event->button - 1;
 584     POINT pt;
 585
 586     if (buttonNum >= NB_BUTTONS || !button_up_flags[buttonNum]) return;
 587     if (!hwnd) return;
 588
 589     update_cursor( hwnd, event->window );
 590     get_coords( &hwnd, event->window, event->x, event->y, &pt );
 591     update_key_state( event->state );
 592     send_mouse_event( hwnd, button_up_flags[buttonNum] | MOUSEEVENTF_ABSOLUTE,
 593                       pt.x, pt.y, 0, event->time );
 594 }
 595
 596
 597 /***********************************************************************
 598  *           X11DRV_MotionNotify
 599  */
 600 void X11DRV_MotionNotify( HWND hwnd, XMotionEvent *event )
 601 {
 602     POINT pt;
 603
 604     if (!hwnd) return;
 605
 606     update_cursor( hwnd, event->window );
 607     get_coords( &hwnd, event->window, event->x, event->y, &pt );
 608     update_key_state( event->state );
 609     send_mouse_event( hwnd, MOUSEEVENTF_MOVE | MOUSEEVENTF_ABSOLUTE,
 610                       pt.x, pt.y, 0, event->time );
 611 }
 612
 613
 614 /***********************************************************************
 615  *           X11DRV_EnterNotify
 616  */
 617 void X11DRV_EnterNotify( HWND hwnd, XCrossingEvent *event )
 618 {
 619     POINT pt;
 620
 621     if (event->detail == NotifyVirtual || event->detail == NotifyNonlinearVirtual) return;
 622     if (!hwnd) return;
 623
 624     /* simulate a mouse motion event */
 625     update_cursor( hwnd, event->window );
 626     get_coords( &hwnd, event->window, event->x, event->y, &pt );
 627     update_key_state( event->state );
 628     send_mouse_event( hwnd, MOUSEEVENTF_MOVE | MOUSEEVENTF_ABSOLUTE,
 629                       pt.x, pt.y, 0, event->time );
 630 }
 631
 632
 633 #ifdef HAVE_LIBXXF86DGA2
 634 /**********************************************************************
 635  *              X11DRV_DGAMotionEvent
 636  */
 637 void X11DRV_DGAMotionEvent( HWND hwnd, XDGAMotionEvent *event )
 638 {
 639     update_key_state( event->state );
 640     send_mouse_event( hwnd, MOUSEEVENTF_MOVE, event->dx, event->dy, 0, event->time );
 641 }
 642
 643 /**********************************************************************
 644  *              X11DRV_DGAButtonPressEvent
 645  */
 646 void X11DRV_DGAButtonPressEvent( HWND hwnd, XDGAButtonEvent *event )
 647 {
 648     int buttonNum = event->button - 1;
 649
 650     if (buttonNum >= NB_BUTTONS) return;
 651     update_key_state( event->state );
 652     send_mouse_event( hwnd, button_down_flags[buttonNum], 0, 0, 0, event->time );
 653 }
 654
 655 /**********************************************************************
 656  *              X11DRV_DGAButtonReleaseEvent
 657  */
 658 void X11DRV_DGAButtonReleaseEvent( HWND hwnd, XDGAButtonEvent *event )
 659 {
 660     int buttonNum = event->button - 1;
 661
 662     if (buttonNum >= NB_BUTTONS) return;
 663     update_key_state( event->state );
 664     send_mouse_event( hwnd, button_up_flags[buttonNum], 0, 0, 0, event->time );
 665 }
 666 #endif /* HAVE_LIBXXF86DGA2 */