updae source to 2.0.9 source

Edward Rudd

2019-04-09 9cd2e9ec8fc0127393dfce9c0359d500c8c238be

 source/src/video/raspberry/SDL_rpivideo.c

@@ -343,17 +343,17 @@
    SDL_DisplayData *displaydata = (SDL_DisplayData *) display->driverdata;

    if(data) {
   if (data->double_buffer) {
       /* Wait for vsync, and then stop vsync callbacks and destroy related stuff, if needed */
       SDL_LockMutex(data->vsync_cond_mutex);
       SDL_CondWait(data->vsync_cond, data->vsync_cond_mutex);
       SDL_UnlockMutex(data->vsync_cond_mutex);
        if (data->double_buffer) {
            /* Wait for vsync, and then stop vsync callbacks and destroy related stuff, if needed */
            SDL_LockMutex(data->vsync_cond_mutex);
            SDL_CondWait(data->vsync_cond, data->vsync_cond_mutex);
            SDL_UnlockMutex(data->vsync_cond_mutex);

       vc_dispmanx_vsync_callback(displaydata->dispman_display, NULL, NULL);
            vc_dispmanx_vsync_callback(displaydata->dispman_display, NULL, NULL);

       SDL_DestroyCond(data->vsync_cond);
       SDL_DestroyMutex(data->vsync_cond_mutex);
   }
            SDL_DestroyCond(data->vsync_cond);
            SDL_DestroyMutex(data->vsync_cond_mutex);
        }

#if SDL_VIDEO_OPENGL_EGL
        if (data->egl_surface != EGL_NO_SURFACE) {