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kdrive/linux/mouse.c: convert mouse data to signed values for compilers 

with default unsigned chars
This commit is contained in:
Keith Packard 2001-12-20 16:47:30 +00:00
parent 83388cb232
commit 88810cfc02
1 changed files with 9 additions and 9 deletions
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18
hw/kdrive/linux/mouse.c
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@ -1,5 +1,5 @@
/* /*
* $XFree86: xc/programs/Xserver/hw/kdrive/linux/mouse.c,v 1.2 2001/11/08 09:35:08 keithp Exp $ * $XFree86: xc/programs/Xserver/hw/kdrive/linux/mouse.c,v 1.4 2001/12/07 02:18:19 keithp Exp $
* *
* Copyright © 2001 Keith Packard, member of The XFree86 Project, Inc. * Copyright © 2001 Keith Packard, member of The XFree86 Project, Inc.
* *
@ -499,8 +499,8 @@ static Bool busParse (KdMouseInfo *mi, unsigned char *ev, int ne)
unsigned long flags; unsigned long flags;
flags = KD_MOUSE_DELTA; flags = KD_MOUSE_DELTA;
dx = (char) ev[1]; dx = (signed char) ev[1];
dy = -(char) ev[2]; dy = -(signed char) ev[2];
if ((ev[0] & 4) == 0) if ((ev[0] & 4) == 0)
flags |= KD_BUTTON_1; flags |= KD_BUTTON_1;
if ((ev[0] & 2) == 0) if ((ev[0] & 2) == 0)
@ -538,8 +538,8 @@ static Bool msParse (KdMouseInfo *mi, unsigned char *ev, int ne)
if (ev[0] & 0x10) if (ev[0] & 0x10)
flags |= KD_BUTTON_3; flags |= KD_BUTTON_3;
dx = (char)(((ev[0] & 0x03) << 6) | (ev[1] & 0x3F)); dx = (signed char)(((ev[0] & 0x03) << 6) | (ev[1] & 0x3F));
dy = (char)(((ev[0] & 0x0C) << 4) | (ev[2] & 0x3F)); dy = (signed char)(((ev[0] & 0x0C) << 4) | (ev[2] & 0x3F));
if (!MouseReasonable (mi, flags, dx, dy)) if (!MouseReasonable (mi, flags, dx, dy))
return FALSE; return FALSE;
if (km->stage == MouseWorking) if (km->stage == MouseWorking)
@ -612,8 +612,8 @@ static Bool logiParse (KdMouseInfo *mi, unsigned char *ev, int ne)
if (ev[0] & 0x10) if (ev[0] & 0x10)
flags |= KD_BUTTON_3; flags |= KD_BUTTON_3;
dx = (char)(((ev[0] & 0x03) << 6) | (ev[1] & 0x3F)); dx = (signed char)(((ev[0] & 0x03) << 6) | (ev[1] & 0x3F));
dy = (char)(((ev[0] & 0x0C) << 4) | (ev[2] & 0x3F)); dy = (signed char)(((ev[0] & 0x0C) << 4) | (ev[2] & 0x3F));
flags |= km->state & KD_BUTTON_2; flags |= km->state & KD_BUTTON_2;
} }
else else
@ -661,8 +661,8 @@ static Bool mscParse (KdMouseInfo *mi, unsigned char *ev, int ne)
flags |= KD_BUTTON_2; flags |= KD_BUTTON_2;
if (!(ev[0] & 0x1)) if (!(ev[0] & 0x1))
flags |= KD_BUTTON_3; flags |= KD_BUTTON_3;
dx = (char)(ev[1]) + (char)(ev[3]); dx = (signed char)(ev[1]) + (signed char)(ev[3]);
dy = - ((char)(ev[2]) + (char)(ev[4])); dy = - ((signed char)(ev[2]) + (signed char)(ev[4]));
if (!MouseReasonable (mi, flags, dx, dy)) if (!MouseReasonable (mi, flags, dx, dy))
return FALSE; return FALSE;