[PATCH v2 14/18] ui/sdl: add optional logging when _SDL_DEBUG is set

[marcandre . lureau]

From: Marc-André Lureau <marcandre.lureau@redhat.com>

Apparently, there is no environment variable you can set for libsdl to
enable logging.

(similar to _VNC_DEBUG)

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
---
 include/ui/sdl2.h | 2 ++
 ui/sdl2.c         | 4 ++++
 2 files changed, 6 insertions(+)

diff --git a/include/ui/sdl2.h b/include/ui/sdl2.h
index 8fb7e08262..6fea36db82 100644
--- a/include/ui/sdl2.h
+++ b/include/ui/sdl2.h
@@ -6,6 +6,8 @@
 
 #include <SDL.h>
 
+/* #define _SDL_DEBUG 1 */
+
 /* with Alpine / muslc SDL headers pull in directfb headers
  * which in turn trigger warning about redundant decls for
  * direct_waitqueue_deinit.
diff --git a/ui/sdl2.c b/ui/sdl2.c
index f259e4c4d1..592eca3e1c 100644
--- a/ui/sdl2.c
+++ b/ui/sdl2.c
@@ -841,6 +841,10 @@ static void sdl2_display_init(DisplayState *ds, 
DisplayOptions *o)
     }
 #endif
 
+#ifdef _SDL_DEBUG
+    SDL_LogSetAllPriority(SDL_LOG_PRIORITY_VERBOSE);
+#endif
+
     if (SDL_Init(SDL_INIT_VIDEO)) {
         fprintf(stderr, "Could not initialize SDL(%s) - exiting\n",
                 SDL_GetError());
-- 
2.39.2