vo_opengl: redirect window screenshot requests to backend

If the glReadPixels method is not available, let the backend do it.

Useful for the next commit.

1 files changed, 5 insertions, 5 deletions

diff --git a/video/out/vo_opengl.c b/video/out/vo_opengl.c
index 36645ec0cd..2517ba7412 100644
--- a/video/out/vo_opengl.c
+++ b/video/out/vo_opengl.c
@@ -300,12 +300,12 @@ static int control(struct vo *vo, uint32_t request, void *data)
     }
     case VOCTRL_SCREENSHOT_WIN: {
         struct mp_image *screen = gl_read_window_contents(p->gl);
+        if (!screen)
+            break; // redirect to backend
         // set image parameters according to the display, if possible
-        if (screen) {
-            screen->params.color = gl_video_get_output_colorspace(p->renderer);
-            if (p->glctx->flip_v)
-                mp_image_vflip(screen);
-        }
+        screen->params.color = gl_video_get_output_colorspace(p->renderer);
+        if (p->glctx->flip_v)
+            mp_image_vflip(screen);
         *(struct mp_image **)data = screen;
         return true;
     }