zink: only inspect dual-src limit if feature enabled

Tested-by: Marge Bot <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/3689>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/3689>

diff --git a/src/gallium/drivers/zink/zink_screen.c b/src/gallium/drivers/zink/zink_screen.c
index 9503194..b329997 100644 (file)
--- a/src/gallium/drivers/zink/zink_screen.c
+++ b/src/gallium/drivers/zink/zink_screen.c
@@ -95,6 +95,8 @@ zink_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
       return 1;
 
    case PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS:
+      if (!screen->feats.dualSrcBlend)
+         return 0;
       return screen->props.limits.maxFragmentDualSrcAttachments;
 
    case PIPE_CAP_POINT_SPRITE: