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fixed bug in DrawLineTo for up-ward verticals and left-ward horizontals.

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svn path=/trunk/; revision=5518
This commit is contained in:
Royce Mitchell III 2003-08-11 03:35:06 +00:00
parent 9aa18596b3
commit 83399f1ec0
1 changed files with 4 additions and 3 deletions
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7
reactos/drivers/dd/vga/display/objects/lineto.c
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@ -16,7 +16,7 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* $Id: lineto.c,v 1.12 2003/07/14 09:43:11 gvg Exp $
* $Id: lineto.c,v 1.13 2003/08/11 03:35:06 royce Exp $
*/
#include "../vgaddi.h"
@ -316,7 +316,7 @@ DrvLineTo(SURFOBJ *DestObj,
{
xchange = -1;
deltax = - deltax;
hx = x2;
hx = x2+1;
x--;
}
else
@ -329,7 +329,7 @@ DrvLineTo(SURFOBJ *DestObj,
{
ychange = -1;
deltay = - deltay;
vy = y2;
vy = y2+1;
y--;
}
else
@ -350,6 +350,7 @@ DrvLineTo(SURFOBJ *DestObj,
RectEnum.arcl[i].left <= hx + deltax &&
hx < RectEnum.arcl[i].right)
{
vgaHLine(max(hx, RectEnum.arcl[i].left), y1,
min(hx + deltax, RectEnum.arcl[i].right)
-max(hx, RectEnum.arcl[i].left), Pixel);