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-rw-r--r--source/blender/editors/space_view3d/view3d_walk.c13
-rw-r--r--source/blender/windowmanager/WM_api.h1
-rw-r--r--source/blender/windowmanager/intern/wm_window.c12
3 files changed, 26 insertions, 0 deletions
diff --git a/source/blender/editors/space_view3d/view3d_walk.c b/source/blender/editors/space_view3d/view3d_walk.c
index e2fbbf58a5c..8bb102085b1 100644
--- a/source/blender/editors/space_view3d/view3d_walk.c
+++ b/source/blender/editors/space_view3d/view3d_walk.c
@@ -62,6 +62,9 @@
#define USE_TABLET_SUPPORT
+/* ensure the target position is one we can reach, see: T45771 */
+#define USE_PIXELSIZE_NATIVE_SUPPORT
+
/* prototypes */
static float getVelocityZeroTime(const float gravity, const float velocity);
@@ -578,6 +581,16 @@ static bool initWalkInfo(bContext *C, WalkInfo *walk, wmOperator *op)
walk->center_mval[0] = walk->ar->winx * 0.5f;
walk->center_mval[1] = walk->ar->winy * 0.5f;
+#ifdef USE_PIXELSIZE_NATIVE_SUPPORT
+ walk->center_mval[0] += walk->ar->winrct.xmin;
+ walk->center_mval[1] += walk->ar->winrct.ymin;
+
+ WM_cursor_comaptible_xy(win, &walk->center_mval[0], &walk->center_mval[1]);
+
+ walk->center_mval[0] -= walk->ar->winrct.xmin;
+ walk->center_mval[1] -= walk->ar->winrct.ymin;
+#endif
+
copy_v2_v2_int(walk->prev_mval, walk->center_mval);
WM_cursor_warp(win,
diff --git a/source/blender/windowmanager/WM_api.h b/source/blender/windowmanager/WM_api.h
index a4c4dbfa67f..a21886c1260 100644
--- a/source/blender/windowmanager/WM_api.h
+++ b/source/blender/windowmanager/WM_api.h
@@ -130,6 +130,7 @@ void WM_paint_cursor_end(struct wmWindowManager *wm, void *handle);
void WM_paint_cursor_tag_redraw(struct wmWindow *win, struct ARegion *ar);
void WM_cursor_warp (struct wmWindow *win, int x, int y);
+void WM_cursor_comaptible_xy(wmWindow *win, int *x, int *y);
float WM_cursor_pressure (const struct wmWindow *win);
/* event map */
diff --git a/source/blender/windowmanager/intern/wm_window.c b/source/blender/windowmanager/intern/wm_window.c
index af7e9c8ca33..c2209b2fe7c 100644
--- a/source/blender/windowmanager/intern/wm_window.c
+++ b/source/blender/windowmanager/intern/wm_window.c
@@ -1557,6 +1557,18 @@ void WM_cursor_warp(wmWindow *win, int x, int y)
}
/**
+ * Set x, y to values we can actually position the cursor to.
+ */
+void WM_cursor_comaptible_xy(wmWindow *win, int *x, int *y)
+{
+ float f = GHOST_GetNativePixelSize(win->ghostwin);
+ if (f != 1.0f) {
+ *x = (int)(*x / f) * f;
+ *y = (int)(*y / f) * f;
+ }
+}
+
+/**
* Get the cursor pressure, in most cases you'll want to use wmTabletData from the event
*/
float WM_cursor_pressure(const struct wmWindow *win)