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



# HG changeset patch
# User Keir Fraser <keir.fraser@xxxxxxxxxx>
# Date 1204715429 0
# Node ID 86e64b684fb2751f8d2db7e07e88da8505008255
# Parent  e1898e917373296357f18a0cc35e6dd50df250e0
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>
---
 tools/ioemu/hw/xenfb.c |    8 ++++----
 tools/ioemu/sdl.c      |    4 ++--
 tools/ioemu/vnc.c      |    4 ++--
 3 files changed, 8 insertions(+), 8 deletions(-)

diff -r e1898e917373 -r 86e64b684fb2 tools/ioemu/hw/xenfb.c
--- a/tools/ioemu/hw/xenfb.c    Wed Mar 05 10:54:08 2008 +0000
+++ b/tools/ioemu/hw/xenfb.c    Wed Mar 05 11:10:29 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 e1898e917373 -r 86e64b684fb2 tools/ioemu/sdl.c
--- a/tools/ioemu/sdl.c Wed Mar 05 10:54:08 2008 +0000
+++ b/tools/ioemu/sdl.c Wed Mar 05 11:10:29 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 e1898e917373 -r 86e64b684fb2 tools/ioemu/vnc.c
--- a/tools/ioemu/vnc.c Wed Mar 05 10:54:08 2008 +0000
+++ b/tools/ioemu/vnc.c Wed Mar 05 11:10:29 2008 +0000
@@ -1217,8 +1217,8 @@ 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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