diff options
| -rw-r--r-- | src/viewport.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/viewport.cpp b/src/viewport.cpp index 06f502379..1c9dca1ef 100644 --- a/src/viewport.cpp +++ b/src/viewport.cpp @@ -1728,7 +1728,7 @@ void ViewportDoDraw(const ViewPort *vp, int left, int top, int right, int bottom */ static void ViewportDrawChk(const ViewPort *vp, int left, int top, int right, int bottom) { - if (ScaleByZoom(bottom - top, vp->zoom) * ScaleByZoom(right - left, vp->zoom) > (int)(180000 * ZOOM_LVL_BASE * ZOOM_LVL_BASE)) { + if ((int64)ScaleByZoom(bottom - top, vp->zoom) * (int64)ScaleByZoom(right - left, vp->zoom) > (int64)(180000 * ZOOM_LVL_BASE * ZOOM_LVL_BASE)) { if ((bottom - top) > (right - left)) { int t = (top + bottom) >> 1; ViewportDrawChk(vp, left, top, right, t); |