2 files changed, 9 insertions, 0 deletions

diff --git a/src/ui/visbuf.c b/src/ui/visbuf.c
index 107b8568..64d861c6 100644
--- a/src/ui/visbuf.c
+++ b/src/ui/visbuf.c
@@ -123,6 +123,14 @@ void invalidRanges_VisBuf(const iVisBuf *d, const iRangei full, iRangei *out_inv
     }
 }
 
+void validate_VisBuf(iVisBuf *d) {
+    iForIndices(i, d->buffers) {
+        iVisBufTexture *buf = &d->buffers[i];
+        buf->validRange =
+            intersect_Rangei(d->vis, (iRangei){ buf->origin, buf->origin + d->texSize.y });
+    }
+}
+
 void draw_VisBuf(const iVisBuf *d, iInt2 topLeft) {
     SDL_Renderer *render = renderer_Window(get_Window());
     iForIndices(i, d->buffers) {
diff --git a/src/ui/visbuf.h b/src/ui/visbuf.h
index f383789c..4b0908f9 100644
--- a/src/ui/visbuf.h
+++ b/src/ui/visbuf.h
@@ -47,6 +47,7 @@ void    invalidate_VisBuf       (iVisBuf *);
 void    alloc_VisBuf            (iVisBuf *, const iInt2 size, int granularity);
 void    dealloc_VisBuf          (iVisBuf *);
 void    reposition_VisBuf       (iVisBuf *, const iRangei vis);
+void    validate_VisBuf         (iVisBuf *);
 
 void    invalidRanges_VisBuf    (const iVisBuf *, const iRangei full, iRangei *out_invalidRanges);
 void    draw_VisBuf             (const iVisBuf *, iInt2 topLeft);