avcodec/cdgraphics: unbreak rendering of vertical scrolling

SaschaVasarrhelyi · Dec 18, 2021 · 1c49d74 · 1c49d74
1 parent 68457c1
commit 1c49d74
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/libavcodec/cdgraphics.c b/libavcodec/cdgraphics.c
@@ -218,7 +218,7 @@ static void cdg_scroll(CDGraphicsContext *cc, uint8_t *data,
 
     /// find the difference and save the offset for cdg_tile_block usage
     hinc = h_off - cc->hscroll;
-    vinc = v_off - cc->vscroll;
+    vinc = cc->vscroll - v_off;
     cc->hscroll = h_off;
     cc->vscroll = v_off;