From e673452b7d66e8e05e7d88c6258283ac9fbaca39 Mon Sep 17 00:00:00 2001
From: Vincent Wei <vincent@minigui.org>
Date: Mon, 31 Jul 2023 10:15:14 +0800
Subject: [PATCH] debug

---
 src/newgal/drm/drmvideo.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/newgal/drm/drmvideo.c b/src/newgal/drm/drmvideo.c
index a15fb29d..c7c0c1b6 100644
--- a/src/newgal/drm/drmvideo.c
+++ b/src/newgal/drm/drmvideo.c
@@ -2731,6 +2731,9 @@ static GAL_Surface *DRM_SetVideoMode(_THIS, GAL_Surface *current,
         if (real_buffer && real_buffer->dma_buf &&
                 drm_map_buffer_via_dmabuf(vdata, real_buffer)) {
             _WRN_PRINTF("Cannot map real screen buffer via DMA-BUF\n");
+        }
+
+        if (real_buffer->vaddr == NULL) {
             vdata->driver_ops->map_buffer(vdata->driver, real_buffer);
         }
     }