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Sweden-Number/dlls/x11drv/mouse.c

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/*
* X11 mouse driver
*
* Copyright 1998 Ulrich Weigand
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "config.h"
#include <X11/Xlib.h>
#ifdef HAVE_LIBXXF86DGA2
#include <X11/extensions/xf86dga.h>
#endif
#include <stdarg.h>
#define NONAMELESSUNION
#define NONAMELESSSTRUCT
#include "windef.h"
#include "winbase.h"
#include "wine/winuser16.h"
#include "x11drv.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(cursor);
/**********************************************************************/
#define NB_BUTTONS 5 /* Windows can handle 3 buttons and the wheel too */
static const UINT button_down_flags[NB_BUTTONS] =
{
MOUSEEVENTF_LEFTDOWN,
MOUSEEVENTF_MIDDLEDOWN,
MOUSEEVENTF_RIGHTDOWN,
MOUSEEVENTF_WHEEL,
MOUSEEVENTF_WHEEL
};
static const UINT button_up_flags[NB_BUTTONS] =
{
MOUSEEVENTF_LEFTUP,
MOUSEEVENTF_MIDDLEUP,
MOUSEEVENTF_RIGHTUP,
0,
0
};
static BYTE *pKeyStateTable;
/***********************************************************************
* get_coords
*
* get the coordinates of a mouse event
*/
static void get_coords( HWND *hwnd, Window window, int x, int y, POINT *pt )
{
struct x11drv_win_data *data;
WND *win;
if (!(win = WIN_GetPtr( *hwnd )) || win == WND_OTHER_PROCESS) return;
data = win->pDriverData;
if (window == data->whole_window)
{
x -= data->client_rect.left;
y -= data->client_rect.top;
}
WIN_ReleasePtr( win );
pt->x = x;
pt->y = y;
if (*hwnd != GetDesktopWindow())
{
ClientToScreen( *hwnd, pt );
*hwnd = GetAncestor( *hwnd, GA_ROOT );
}
}
/***********************************************************************
* update_button_state
*
* Update the button state with what X provides us
*/
static void update_button_state( unsigned int state )
{
pKeyStateTable[VK_LBUTTON] = (state & Button1Mask ? 0x80 : 0);
pKeyStateTable[VK_MBUTTON] = (state & Button2Mask ? 0x80 : 0);
pKeyStateTable[VK_RBUTTON] = (state & Button3Mask ? 0x80 : 0);
}
/***********************************************************************
* update_key_state
*
* Update the key state with what X provides us
*/
static void update_key_state( unsigned int state )
{
pKeyStateTable[VK_SHIFT] = (state & ShiftMask ? 0x80 : 0);
pKeyStateTable[VK_CONTROL] = (state & ControlMask ? 0x80 : 0);
}
/***********************************************************************
* send_mouse_event
*/
static void send_mouse_event( HWND hwnd, DWORD flags, DWORD posX, DWORD posY,
DWORD data, Time time )
{
INPUT input;
TRACE("(%04lX,%ld,%ld)\n", flags, posX, posY );
if (flags & MOUSEEVENTF_ABSOLUTE)
{
int width = GetSystemMetrics( SM_CXSCREEN );
int height = GetSystemMetrics( SM_CYSCREEN );
/* Relative mouse movements seem not to be scaled as absolute ones */
posX = (((long)posX << 16) + width-1) / width;
posY = (((long)posY << 16) + height-1) / height;
}
input.type = WINE_INTERNAL_INPUT_MOUSE;
input.u.mi.dx = posX;
input.u.mi.dy = posY;
input.u.mi.mouseData = data;
input.u.mi.dwFlags = flags;
input.u.mi.time = time - X11DRV_server_startticks;
input.u.mi.dwExtraInfo = (ULONG_PTR)hwnd;
SendInput( 1, &input, sizeof(input) );
}
/***********************************************************************
* update_cursor
*
* Update the cursor of a window on a mouse event.
*/
static void update_cursor( HWND hwnd, Window win )
{
struct x11drv_thread_data *data = x11drv_thread_data();
if (win == X11DRV_get_client_window( hwnd ))
win = X11DRV_get_whole_window( hwnd ); /* always set cursor on whole window */
if (data->cursor_window != win)
{
data->cursor_window = win;
wine_tsx11_lock();
if (data->cursor) XDefineCursor( data->display, win, data->cursor );
wine_tsx11_unlock();
}
}
/***********************************************************************
* create_cursor
*
* Create an X cursor from a Windows one.
*/
static Cursor create_cursor( Display *display, CURSORICONINFO *ptr )
{
Pixmap pixmapBits, pixmapMask, pixmapMaskInv, pixmapAll;
XColor fg, bg;
Cursor cursor = None;
if (!ptr) /* Create an empty cursor */
{
static const char data[] = { 0 };
bg.red = bg.green = bg.blue = 0x0000;
pixmapBits = XCreateBitmapFromData( display, root_window, data, 1, 1 );
if (pixmapBits)
{
cursor = XCreatePixmapCursor( display, pixmapBits, pixmapBits,
&bg, &bg, 0, 0 );
XFreePixmap( display, pixmapBits );
}
}
else /* Create the X cursor from the bits */
{
XImage *image;
GC gc;
TRACE("Bitmap %dx%d planes=%d bpp=%d bytesperline=%d\n",
ptr->nWidth, ptr->nHeight, ptr->bPlanes, ptr->bBitsPerPixel,
ptr->nWidthBytes);
/* Create a pixmap and transfer all the bits to it */
/* NOTE: Following hack works, but only because XFree depth
* 1 images really use 1 bit/pixel (and so the same layout
* as the Windows cursor data). Perhaps use a more generic
* algorithm here.
*/
/* This pixmap will be written with two bitmaps. The first is
* the mask and the second is the image.
*/
if (!(pixmapAll = XCreatePixmap( display, root_window,
ptr->nWidth, ptr->nHeight * 2, 1 )))
return 0;
if (!(image = XCreateImage( display, visual,
1, ZPixmap, 0, (char *)(ptr + 1), ptr->nWidth,
ptr->nHeight * 2, 16, ptr->nWidthBytes/ptr->bBitsPerPixel)))
{
XFreePixmap( display, pixmapAll );
return 0;
}
gc = XCreateGC( display, pixmapAll, 0, NULL );
XSetGraphicsExposures( display, gc, False );
image->byte_order = MSBFirst;
image->bitmap_bit_order = MSBFirst;
image->bitmap_unit = 16;
_XInitImageFuncPtrs(image);
if (ptr->bPlanes * ptr->bBitsPerPixel == 1)
{
/* A plain old white on black cursor. */
fg.red = fg.green = fg.blue = 0xffff;
bg.red = bg.green = bg.blue = 0x0000;
XPutImage( display, pixmapAll, gc, image,
0, 0, 0, 0, ptr->nWidth, ptr->nHeight * 2 );
}
else
{
int rbits, gbits, bbits, red, green, blue;
int rfg, gfg, bfg, rbg, gbg, bbg;
int rscale, gscale, bscale;
int x, y, xmax, ymax, bitIndex, byteIndex, xorIndex;
unsigned char *theMask, *theImage, theChar;
int threshold, fgBits, bgBits, bitShifted;
BYTE pXorBits[128]; /* Up to 32x32 icons */
switch (ptr->bBitsPerPixel)
{
case 24:
rbits = 8;
gbits = 8;
bbits = 8;
threshold = 0x40;
break;
case 16:
rbits = 5;
gbits = 6;
bbits = 5;
threshold = 0x40;
break;
default:
FIXME("Currently no support for cursors with %d bits per pixel\n",
ptr->bBitsPerPixel);
XFreePixmap( display, pixmapAll );
XFreeGC( display, gc );
image->data = NULL;
XDestroyImage( image );
return 0;
}
/* The location of the mask. */
theMask = (char *)(ptr + 1);
/* The mask should still be 1 bit per pixel. The color image
* should immediately follow the mask.
*/
theImage = &theMask[ptr->nWidth/8 * ptr->nHeight];
rfg = gfg = bfg = rbg = gbg = bbg = 0;
bitIndex = 0;
byteIndex = 0;
xorIndex = 0;
fgBits = 0;
bitShifted = 0x01;
xmax = (ptr->nWidth > 32) ? 32 : ptr->nWidth;
if (ptr->nWidth > 32) {
ERR("Got a %dx%d cursor. Cannot handle larger than 32x32.\n",
ptr->nWidth, ptr->nHeight);
}
ymax = (ptr->nHeight > 32) ? 32 : ptr->nHeight;
memset(pXorBits, 0, 128);
for (y=0; y<ymax; y++)
{
for (x=0; x<xmax; x++)
{
red = green = blue = 0;
switch (ptr->bBitsPerPixel)
{
case 24:
theChar = theImage[byteIndex++];
blue = theChar;
theChar = theImage[byteIndex++];
green = theChar;
theChar = theImage[byteIndex++];
red = theChar;
break;
case 16:
theChar = theImage[byteIndex++];
blue = theChar & 0x1F;
green = (theChar & 0xE0) >> 5;
theChar = theImage[byteIndex++];
green |= (theChar & 0x07) << 3;
red = (theChar & 0xF8) >> 3;
break;
}
if (red+green+blue > threshold)
{
rfg += red;
gfg += green;
bfg += blue;
fgBits++;
pXorBits[xorIndex] |= bitShifted;
}
else
{
rbg += red;
gbg += green;
bbg += blue;
}
if (x%8 == 7)
{
bitShifted = 0x01;
xorIndex++;
}
else
bitShifted = bitShifted << 1;
}
}
rscale = 1 << (16 - rbits);
gscale = 1 << (16 - gbits);
bscale = 1 << (16 - bbits);
if (fgBits)
{
fg.red = rfg * rscale / fgBits;
fg.green = gfg * gscale / fgBits;
fg.blue = bfg * bscale / fgBits;
}
else fg.red = fg.green = fg.blue = 0;
bgBits = xmax * ymax - fgBits;
if (bgBits)
{
bg.red = rbg * rscale / bgBits;
bg.green = gbg * gscale / bgBits;
bg.blue = bbg * bscale / bgBits;
}
else bg.red = bg.green = bg.blue = 0;
pixmapBits = XCreateBitmapFromData( display, root_window, pXorBits, xmax, ymax );
if (!pixmapBits)
{
XFreePixmap( display, pixmapAll );
XFreeGC( display, gc );
image->data = NULL;
XDestroyImage( image );
return 0;
}
/* Put the mask. */
XPutImage( display, pixmapAll, gc, image,
0, 0, 0, 0, ptr->nWidth, ptr->nHeight );
XSetFunction( display, gc, GXcopy );
/* Put the image */
XCopyArea( display, pixmapBits, pixmapAll, gc,
0, 0, xmax, ymax, 0, ptr->nHeight );
XFreePixmap( display, pixmapBits );
}
image->data = NULL;
XDestroyImage( image );
/* Now create the 2 pixmaps for bits and mask */
pixmapBits = XCreatePixmap( display, root_window, ptr->nWidth, ptr->nHeight, 1 );
pixmapMask = XCreatePixmap( display, root_window, ptr->nWidth, ptr->nHeight, 1 );
pixmapMaskInv = XCreatePixmap( display, root_window, ptr->nWidth, ptr->nHeight, 1 );
/* Make sure everything went OK so far */
if (pixmapBits && pixmapMask && pixmapMaskInv)
{
POINT hotspot;
/* We have to do some magic here, as cursors are not fully
* compatible between Windows and X11. Under X11, there
* are only 3 possible color cursor: black, white and
* masked. So we map the 4th Windows color (invert the
* bits on the screen) to black and an additional white bit on
* an other place (+1,+1). This require some boolean arithmetic:
*
* Windows | X11
* And Xor Result | Bits Mask Result
* 0 0 black | 0 1 background
* 0 1 white | 1 1 foreground
* 1 0 no change | X 0 no change
* 1 1 inverted | 0 1 background
*
* which gives:
* Bits = not 'And' and 'Xor' or 'And2' and 'Xor2'
* Mask = not 'And' or 'Xor' or 'And2' and 'Xor2'
*
* FIXME: apparently some servers do support 'inverted' color.
* I don't know if it's correct per the X spec, but maybe
* we ought to take advantage of it. -- AJ
*/
XSetFunction( display, gc, GXcopy );
XCopyArea( display, pixmapAll, pixmapBits, gc,
0, 0, ptr->nWidth, ptr->nHeight, 0, 0 );
XCopyArea( display, pixmapAll, pixmapMask, gc,
0, 0, ptr->nWidth, ptr->nHeight, 0, 0 );
XCopyArea( display, pixmapAll, pixmapMaskInv, gc,
0, 0, ptr->nWidth, ptr->nHeight, 0, 0 );
XSetFunction( display, gc, GXand );
XCopyArea( display, pixmapAll, pixmapMaskInv, gc,
0, ptr->nHeight, ptr->nWidth, ptr->nHeight, 0, 0 );
XSetFunction( display, gc, GXandReverse );
XCopyArea( display, pixmapAll, pixmapBits, gc,
0, ptr->nHeight, ptr->nWidth, ptr->nHeight, 0, 0 );
XSetFunction( display, gc, GXorReverse );
XCopyArea( display, pixmapAll, pixmapMask, gc,
0, ptr->nHeight, ptr->nWidth, ptr->nHeight, 0, 0 );
/* Additional white */
XSetFunction( display, gc, GXor );
XCopyArea( display, pixmapMaskInv, pixmapMask, gc,
0, 0, ptr->nWidth, ptr->nHeight, 1, 1 );
XCopyArea( display, pixmapMaskInv, pixmapBits, gc,
0, 0, ptr->nWidth, ptr->nHeight, 1, 1 );
XSetFunction( display, gc, GXcopy );
/* Make sure hotspot is valid */
hotspot.x = ptr->ptHotSpot.x;
hotspot.y = ptr->ptHotSpot.y;
if (hotspot.x < 0 || hotspot.x >= ptr->nWidth ||
hotspot.y < 0 || hotspot.y >= ptr->nHeight)
{
hotspot.x = ptr->nWidth / 2;
hotspot.y = ptr->nHeight / 2;
}
cursor = XCreatePixmapCursor( display, pixmapBits, pixmapMask,
&fg, &bg, hotspot.x, hotspot.y );
}
/* Now free everything */
if (pixmapAll) XFreePixmap( display, pixmapAll );
if (pixmapBits) XFreePixmap( display, pixmapBits );
if (pixmapMask) XFreePixmap( display, pixmapMask );
if (pixmapMaskInv) XFreePixmap( display, pixmapMaskInv );
XFreeGC( display, gc );
}
return cursor;
}
/***********************************************************************
* SetCursor (X11DRV.@)
*/
void X11DRV_SetCursor( CURSORICONINFO *lpCursor )
{
Cursor cursor;
if (root_window != DefaultRootWindow(gdi_display))
{
/* If in desktop mode, set the cursor on the desktop window */
wine_tsx11_lock();
cursor = create_cursor( gdi_display, lpCursor );
if (cursor)
{
XDefineCursor( gdi_display, root_window, cursor );
/* Make the change take effect immediately */
XFlush(gdi_display);
XFreeCursor( gdi_display, cursor );
}
wine_tsx11_unlock();
}
else /* set the same cursor for all top-level windows of the current thread */
{
struct x11drv_thread_data *data = x11drv_thread_data();
wine_tsx11_lock();
cursor = create_cursor( data->display, lpCursor );
if (cursor)
{
if (data->cursor) XFreeCursor( data->display, data->cursor );
data->cursor = cursor;
if (data->cursor_window)
{
XDefineCursor( data->display, data->cursor_window, cursor );
/* Make the change take effect immediately */
XFlush( data->display );
}
}
wine_tsx11_unlock();
}
}
/***********************************************************************
* SetCursorPos (X11DRV.@)
*/
void X11DRV_SetCursorPos( INT x, INT y )
{
Display *display = thread_display();
TRACE( "warping to (%d,%d)\n", x, y );
wine_tsx11_lock();
XWarpPointer( display, root_window, root_window, 0, 0, 0, 0, x, y );
XFlush( display ); /* just in case */
wine_tsx11_unlock();
}
/***********************************************************************
* GetCursorPos (X11DRV.@)
*/
void X11DRV_GetCursorPos(LPPOINT pos)
{
Display *display = thread_display();
Window root, child;
int rootX, rootY, winX, winY;
unsigned int xstate;
wine_tsx11_lock();
if (XQueryPointer( display, root_window, &root, &child,
&rootX, &rootY, &winX, &winY, &xstate ))
{
update_key_state( xstate );
update_button_state( xstate );
TRACE("pointer at (%d,%d)\n", winX, winY );
pos->x = winX;
pos->y = winY;
}
wine_tsx11_unlock();
}
/***********************************************************************
* InitMouse (X11DRV.@)
*/
void X11DRV_InitMouse( BYTE *key_state_table )
{
pKeyStateTable = key_state_table;
}
/***********************************************************************
* X11DRV_ButtonPress
*/
void X11DRV_ButtonPress( HWND hwnd, XButtonEvent *event )
{
int buttonNum = event->button - 1;
WORD wData = 0;
POINT pt;
if (buttonNum >= NB_BUTTONS) return;
if (!hwnd) return;
update_cursor( hwnd, event->window );
get_coords( &hwnd, event->window, event->x, event->y, &pt );
switch (buttonNum)
{
case 3:
wData = WHEEL_DELTA;
break;
case 4:
wData = -WHEEL_DELTA;
break;
}
update_key_state( event->state );
send_mouse_event( hwnd, button_down_flags[buttonNum] | MOUSEEVENTF_ABSOLUTE,
pt.x, pt.y, wData, event->time );
}
/***********************************************************************
* X11DRV_ButtonRelease
*/
void X11DRV_ButtonRelease( HWND hwnd, XButtonEvent *event )
{
int buttonNum = event->button - 1;
POINT pt;
if (buttonNum >= NB_BUTTONS || !button_up_flags[buttonNum]) return;
if (!hwnd) return;
update_cursor( hwnd, event->window );
get_coords( &hwnd, event->window, event->x, event->y, &pt );
update_key_state( event->state );
send_mouse_event( hwnd, button_up_flags[buttonNum] | MOUSEEVENTF_ABSOLUTE,
pt.x, pt.y, 0, event->time );
}
/***********************************************************************
* X11DRV_MotionNotify
*/
void X11DRV_MotionNotify( HWND hwnd, XMotionEvent *event )
{
POINT pt;
if (!hwnd) return;
update_cursor( hwnd, event->window );
get_coords( &hwnd, event->window, event->x, event->y, &pt );
update_key_state( event->state );
send_mouse_event( hwnd, MOUSEEVENTF_MOVE | MOUSEEVENTF_ABSOLUTE,
pt.x, pt.y, 0, event->time );
}
/***********************************************************************
* X11DRV_EnterNotify
*/
void X11DRV_EnterNotify( HWND hwnd, XCrossingEvent *event )
{
POINT pt;
if (event->detail == NotifyVirtual || event->detail == NotifyNonlinearVirtual) return;
if (!hwnd) return;
/* simulate a mouse motion event */
update_cursor( hwnd, event->window );
get_coords( &hwnd, event->window, event->x, event->y, &pt );
update_key_state( event->state );
send_mouse_event( hwnd, MOUSEEVENTF_MOVE | MOUSEEVENTF_ABSOLUTE,
pt.x, pt.y, 0, event->time );
}
#ifdef HAVE_LIBXXF86DGA2
/**********************************************************************
* X11DRV_DGAMotionEvent
*/
void X11DRV_DGAMotionEvent( HWND hwnd, XDGAMotionEvent *event )
{
update_key_state( event->state );
send_mouse_event( hwnd, MOUSEEVENTF_MOVE, event->dx, event->dy, 0, event->time );
}
/**********************************************************************
* X11DRV_DGAButtonPressEvent
*/
void X11DRV_DGAButtonPressEvent( HWND hwnd, XDGAButtonEvent *event )
{
int buttonNum = event->button - 1;
if (buttonNum >= NB_BUTTONS) return;
update_key_state( event->state );
send_mouse_event( hwnd, button_down_flags[buttonNum], 0, 0, 0, event->time );
}
/**********************************************************************
* X11DRV_DGAButtonReleaseEvent
*/
void X11DRV_DGAButtonReleaseEvent( HWND hwnd, XDGAButtonEvent *event )
{
int buttonNum = event->button - 1;
if (buttonNum >= NB_BUTTONS) return;
update_key_state( event->state );
send_mouse_event( hwnd, button_up_flags[buttonNum], 0, 0, 0, event->time );
}
#endif /* HAVE_LIBXXF86DGA2 */
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