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Fix rotated/reflected cursor positions.

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Doing projective transforms required repositioning the cursor using the
hotspot, but that requires relocating the upper left corner in terms of said
hotspot.
This commit is contained in:
Keith Packard 2008-03-21 03:15:00 -07:00
parent ea5aeee7b9
commit 6acc7e9f65
1 changed files with 11 additions and 11 deletions
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22
hw/xfree86/modes/xf86Cursors.c
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@ -328,23 +328,23 @@ xf86_crtc_set_cursor_position (xf86CrtcPtr crtc, int x, int y)
v.v[0] = x + ScreenPriv->HotX; v.v[1] = y + ScreenPriv->HotY; v.v[2] = 1;
pict_f_transform_point (&crtc->f_framebuffer_to_crtc, &v);
x = floor (v.v[0] + 0.5) - ScreenPriv->HotX;
y = floor (v.v[1] + 0.5) - ScreenPriv->HotY;
x = floor (v.v[0] + 0.5);
y = floor (v.v[1] + 0.5);
/*
* Transform position of cursor upper left corner
*/
xf86_crtc_rotate_coord_back (crtc->rotation,
cursor_info->MaxWidth,
cursor_info->MaxHeight,
ScreenPriv->HotX, ScreenPriv->HotY, &dx, &dy);
x -= dx;
y -= dy;
}
else
{
x -= crtc->x;
y -= crtc->y;
}
/*
* Transform position of cursor upper left corner
*/
xf86_crtc_rotate_coord_back (crtc->rotation,
cursor_info->MaxWidth,
cursor_info->MaxHeight,
0, 0, &dx, &dy);
x -= dx;
y -= dy;
/*
* Disable the cursor when it is outside the viewport