kdrive/linux/mouse.c: convert mouse data to signed values for compilers
with default unsigned chars
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83388cb232
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88810cfc02
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@ -1,5 +1,5 @@
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/*
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* $XFree86: xc/programs/Xserver/hw/kdrive/linux/mouse.c,v 1.2 2001/11/08 09:35:08 keithp Exp $
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* $XFree86: xc/programs/Xserver/hw/kdrive/linux/mouse.c,v 1.4 2001/12/07 02:18:19 keithp Exp $
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*
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* Copyright © 2001 Keith Packard, member of The XFree86 Project, Inc.
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*
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@ -499,8 +499,8 @@ static Bool busParse (KdMouseInfo *mi, unsigned char *ev, int ne)
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unsigned long flags;
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flags = KD_MOUSE_DELTA;
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dx = (char) ev[1];
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dy = -(char) ev[2];
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dx = (signed char) ev[1];
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dy = -(signed char) ev[2];
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if ((ev[0] & 4) == 0)
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flags |= KD_BUTTON_1;
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if ((ev[0] & 2) == 0)
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@ -538,8 +538,8 @@ static Bool msParse (KdMouseInfo *mi, unsigned char *ev, int ne)
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if (ev[0] & 0x10)
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flags |= KD_BUTTON_3;
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dx = (char)(((ev[0] & 0x03) << 6) | (ev[1] & 0x3F));
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dy = (char)(((ev[0] & 0x0C) << 4) | (ev[2] & 0x3F));
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dx = (signed char)(((ev[0] & 0x03) << 6) | (ev[1] & 0x3F));
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dy = (signed char)(((ev[0] & 0x0C) << 4) | (ev[2] & 0x3F));
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if (!MouseReasonable (mi, flags, dx, dy))
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return FALSE;
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if (km->stage == MouseWorking)
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@ -612,8 +612,8 @@ static Bool logiParse (KdMouseInfo *mi, unsigned char *ev, int ne)
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if (ev[0] & 0x10)
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flags |= KD_BUTTON_3;
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dx = (char)(((ev[0] & 0x03) << 6) | (ev[1] & 0x3F));
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dy = (char)(((ev[0] & 0x0C) << 4) | (ev[2] & 0x3F));
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dx = (signed char)(((ev[0] & 0x03) << 6) | (ev[1] & 0x3F));
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dy = (signed char)(((ev[0] & 0x0C) << 4) | (ev[2] & 0x3F));
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flags |= km->state & KD_BUTTON_2;
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}
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else
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@ -661,8 +661,8 @@ static Bool mscParse (KdMouseInfo *mi, unsigned char *ev, int ne)
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flags |= KD_BUTTON_2;
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if (!(ev[0] & 0x1))
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flags |= KD_BUTTON_3;
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dx = (char)(ev[1]) + (char)(ev[3]);
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dy = - ((char)(ev[2]) + (char)(ev[4]));
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dx = (signed char)(ev[1]) + (signed char)(ev[3]);
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dy = - ((signed char)(ev[2]) + (signed char)(ev[4]));
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if (!MouseReasonable (mi, flags, dx, dy))
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return FALSE;
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