ddraw: Use wined3d_bit_scan() in viewport_alloc_active_light_index().

Signed-off-by: Henri Verbeet <hverbeet@codeweavers.com> Signed-off-by: Alexandre Julliard <julliard@winehq.org>

ddraw: Use wined3d_bit_scan() in viewport_alloc_active_light_index().
f30248f3 · Henri Verbeet · Alexandre Julliard · e867d986 · f30248f3
Commit f30248f3 authored Jun 28, 2019 by Henri Verbeet Committed by Alexandre Julliard Jul 01, 2019
Hide whitespace changes
Inline Side-by-side

Showing with 3 additions and 8 deletions

viewport.c dlls/ddraw/viewport.c +3 -8

No files found.
--- a/dlls/ddraw/viewport.c
+++ b/dlls/ddraw/viewport.c
@@ -152,15 +152,10 @@ void viewport_alloc_active_light_index(struct d3d_light *light)
            }
        }
    }
-    map = vp->map_lights;
-    assert(vp->active_lights_count < DDRAW_MAX_ACTIVE_LIGHTS && map != ~0u);

-    i = 0;
-    while (map & 1)
-    {
-        map >>= 1;
-        ++i;
-    }
+    map = ~vp->map_lights;
+    assert(vp->active_lights_count < DDRAW_MAX_ACTIVE_LIGHTS && map);
+    i = wined3d_bit_scan(&map);
    light->active_light_index = i + 1;
    ++vp->active_lights_count;
    vp->map_lights |= 1u << i;