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Avoid division by zero (thanks to David Ronis).

This commit is contained in:
Alexandre Julliard 2002-05-31 19:14:40 +00:00
parent d8a9244fc4
commit 332d62ba10
1 changed files with 14 additions and 6 deletions
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20
dlls/x11drv/mouse.c
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@ -301,13 +301,21 @@ Cursor X11DRV_GetCursor( Display *display, CURSORICONINFO *ptr )
rscale = 1 << (16 - rbits); rscale = 1 << (16 - rbits);
gscale = 1 << (16 - gbits); gscale = 1 << (16 - gbits);
bscale = 1 << (16 - bbits); bscale = 1 << (16 - bbits);
fg.red = rfg * rscale / fgBits; if (fgBits)
fg.green = gfg * gscale / fgBits; {
fg.blue = bfg * bscale / 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; bgBits = xmax * ymax - fgBits;
bg.red = rbg * rscale / bgBits; if (bgBits)
bg.green = gbg * gscale / bgBits; {
bg.blue = bbg * bscale / 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 ); pixmapBits = XCreateBitmapFromData( display, root_window, pXorBits, xmax, ymax );
if (!pixmapBits) if (!pixmapBits)
{ {