ioemu: Let the USB tablet reach the far bottom and right pixels
by fixing divisions / multiplications into using width-1.
Signed-off-by: Samuel Thibault <samuel.thibault@xxxxxxxxxxxxx>
diff -r 854b0704962b tools/ioemu/hw/xenfb.c
--- a/tools/ioemu/hw/xenfb.c Wed Mar 05 09:43:03 2008 +0000
+++ b/tools/ioemu/hw/xenfb.c Wed Mar 05 10:56:17 2008 +0000
@@ -1052,8 +1052,8 @@ static void xenfb_mouse_event(void *opaq
 struct xenfb *xenfb = opaque;
 if (xenfb->abs_pointer_wanted)
 xenfb_send_position(xenfb,
- dx * xenfb->ds->width / 0x7fff,
- dy * xenfb->ds->height / 0x7fff,
+ dx * (xenfb->ds->width - 1) / 0x7fff,
+ dy * (xenfb->ds->height - 1) / 0x7fff,
 dz);
 else
 xenfb_send_motion(xenfb, dx, dy, dz);
@@ -1312,8 +1312,8 @@ static void xenfb_kbd_handler(void *opaq
 buttons &= ~button;
 if (kbd_mouse_is_absolute())
 kbd_mouse_event(
- x * 0x7FFF / s->width,
- y * 0x7FFF / s->height,
+ x * 0x7FFF / (s->width - 1),
+ y * 0x7FFF / (s->height - 1),
 0,
 buttons);
 else
diff -r 854b0704962b tools/ioemu/sdl.c
--- a/tools/ioemu/sdl.c Wed Mar 05 09:43:03 2008 +0000
+++ b/tools/ioemu/sdl.c Wed Mar 05 10:56:17 2008 +0000
@@ -331,8 +331,8 @@ static void sdl_send_mouse_event(int dx,
 }
 
 SDL_GetMouseState(&dx, &dy);
- dx = dx * 0x7FFF / width;
- dy = dy * 0x7FFF / height;
+ dx = dx * 0x7FFF / (width - 1);
+ dy = dy * 0x7FFF / (height - 1);
 } else if (absolute_enabled) {
 sdl_show_cursor();
 absolute_enabled = 0;
diff -r 854b0704962b tools/ioemu/vnc.c
--- a/tools/ioemu/vnc.c Wed Mar 05 09:43:03 2008 +0000
+++ b/tools/ioemu/vnc.c Wed Mar 05 10:56:17 2008 +0000
@@ -1214,8 +1214,8 @@ static void pointer_event(VncState *vs, 
 dz = 1;
 
 if (vs->absolute) {
- kbd_mouse_event(x * 0x7FFF / vs->ds->width,
- y * 0x7FFF / vs->ds->height,
+ kbd_mouse_event(x * 0x7FFF / (vs->ds->width - 1),
+ y * 0x7FFF / (vs->ds->height - 1),
 dz, buttons);
 } else if (vs->has_pointer_type_change) {
 x -= 0x7FFF;
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