[Xen-changelog] [xen-3.2-testing] ioemu: Let the USB tablet reach the far bottom and right pixels

["Xen patchbot-3.2-testing" <patchbot-3.2-testing@xxxxxxxxxxxxxxxxxxx>]

# HG changeset patch
# User Keir Fraser <keir.fraser@xxxxxxxxxx>
# Date 1206014691 0
# Node ID 9972eb777b605ee4dd6b42da2aee9032262fc1cf
# Parent  0e23995db2eba0052f2ef05f67b845721eef65db
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>
xen-unstable changeset:   17189:86e64b684fb2751f8d2db7e07e88da8505008255
xen-unstable date:        Wed Mar 05 11:10:29 2008 +0000
---
 tools/ioemu/hw/xenfb.c |    4 ++--
 tools/ioemu/sdl.c      |    4 ++--
 tools/ioemu/vnc.c      |    4 ++--
 3 files changed, 6 insertions(+), 6 deletions(-)

diff -r 0e23995db2eb -r 9972eb777b60 tools/ioemu/hw/xenfb.c
--- a/tools/ioemu/hw/xenfb.c    Mon Mar 17 11:40:53 2008 +0000
+++ b/tools/ioemu/hw/xenfb.c    Thu Mar 20 12:04:51 2008 +0000
@@ -1044,8 +1044,8 @@ 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);
diff -r 0e23995db2eb -r 9972eb777b60 tools/ioemu/sdl.c
--- a/tools/ioemu/sdl.c Mon Mar 17 11:40:53 2008 +0000
+++ b/tools/ioemu/sdl.c Thu Mar 20 12:04:51 2008 +0000
@@ -279,8 +279,8 @@ 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 0e23995db2eb -r 9972eb777b60 tools/ioemu/vnc.c
--- a/tools/ioemu/vnc.c Mon Mar 17 11:40:53 2008 +0000
+++ b/tools/ioemu/vnc.c Thu Mar 20 12:04:51 2008 +0000
@@ -1023,8 +1023,8 @@ 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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