[vlc-devel] [vlc-commits] vout: assume/require a window

Steve Lhomme robux4 at ycbcr.xyz
Tue Aug 28 15:09:11 CEST 2018


This commit broke the video splitter. Before that --video-filter=wall 
was working. Not sure exactly why it doesn't work anymore, but it 
doesn't have a vout_window_t and crashes when
vout_window_Control() with a NULL window.


On 20/05/2018 19:52, Rémi Denis-Courmont wrote:
> vlc | branch: master | Rémi Denis-Courmont <remi at remlab.net> | Thu May 17 21:05:20 2018 +0300| [5563c33a5cf02c9d7adb6bb6e3f6a3994282408c] | committer: Rémi Denis-Courmont
>
> vout: assume/require a window
>
> Since in the worst case, there will be the dummy.
>
>> http://git.videolan.org/gitweb.cgi/vlc.git/?a=commit;h=5563c33a5cf02c9d7adb6bb6e3f6a3994282408c
> ---
>
>   include/vlc_vout_display.h      |  3 +--
>   src/video_output/display.c      | 16 ++++++--------
>   src/video_output/display.h      |  1 -
>   src/video_output/video_output.c | 49 ++++++++++++++++-------------------------
>   4 files changed, 27 insertions(+), 42 deletions(-)
>
> diff --git a/include/vlc_vout_display.h b/include/vlc_vout_display.h
> index 48bf23fab9..eddf15a0da 100644
> --- a/include/vlc_vout_display.h
> +++ b/include/vlc_vout_display.h
> @@ -391,8 +391,7 @@ static inline void vout_display_DeleteWindow(vout_display_t *vd)
>   
>   static inline bool vout_display_IsWindowed(vout_display_t *vd)
>   {
> -    return vd->cfg->window != NULL
> -        && vd->cfg->window->type != VOUT_WINDOW_TYPE_DUMMY;
> +    return vd->cfg->window->type != VOUT_WINDOW_TYPE_DUMMY;
>   }
>   
>   /**
> diff --git a/src/video_output/display.c b/src/video_output/display.c
> index ae347f38f9..4d7362aba5 100644
> --- a/src/video_output/display.c
> +++ b/src/video_output/display.c
> @@ -115,10 +115,7 @@ static vout_display_t *vout_display_New(vlc_object_t *obj,
>           vd->module = NULL;
>       }
>   
> -    if (cfg->window != NULL)
> -        vout_window_SetSize(cfg->window,
> -                            cfg->display.width, cfg->display.height);
> -
> +    vout_window_SetSize(cfg->window, cfg->display.width, cfg->display.height);
>       return vd;
>   }
>   
> @@ -636,9 +633,7 @@ static void VoutDisplayEvent(vout_display_t *vd, int event, va_list args)
>   
>   static void VoutDisplayDelWindow(vout_display_t *vd)
>   {
> -    vout_display_owner_sys_t *osys = vd->owner.sys;
> -
> -    vout_DeleteDisplayWindow(osys->vout);
> +    (void) vd;
>   }
>   
>   static void VoutDisplayFitWindow(vout_display_t *vd, bool default_size)
> @@ -1316,8 +1311,7 @@ static void SplitterClose(vout_display_t *vd)
>           vout_window_t *wnd = sys->display[i]->cfg->window;
>   
>           vout_DeleteDisplay(sys->display[i], NULL);
> -        if (wnd != NULL)
> -            vout_display_window_Delete(wnd);
> +        vout_display_window_Delete(wnd);
>       }
>       TAB_CLEAN(sys->count, sys->display);
>       free(sys->picture);
> @@ -1390,6 +1384,10 @@ vout_display_t *vout_NewSplitter(vout_thread_t *vout,
>           vout_display_GetDefaultDisplaySize(&cfg.width, &cfg.height,
>                                              source, &ostate.cfg);
>           ostate.cfg.window = vout_display_window_New(vout, &cfg);
> +        if (unlikely(ostate.cfg.window == NULL)) {
> +            vout_DeleteDisplay(wrapper, NULL);
> +            return NULL;
> +        }
>   
>           vout_display_t *vd = DisplayNew(vout, &output->fmt, &ostate,
>                                           output->psz_module ? output->psz_module : module,
> diff --git a/src/video_output/display.h b/src/video_output/display.h
> index 54d69b3c83..875981e1a9 100644
> --- a/src/video_output/display.h
> +++ b/src/video_output/display.h
> @@ -32,7 +32,6 @@ vout_display_t *vout_NewSplitter(vout_thread_t *vout,
>   /* FIXME should not be there */
>   void vout_SendDisplayEventMouse(vout_thread_t *, const vlc_mouse_t *);
>   
> -void vout_DeleteDisplayWindow(vout_thread_t *);
>   void vout_SetDisplayWindowSize(vout_thread_t *, unsigned, unsigned);
>   
>   void vout_UpdateDisplaySourceProperties(vout_display_t *vd, const video_format_t *);
> diff --git a/src/video_output/video_output.c b/src/video_output/video_output.c
> index a7e96ce24a..36a4b0a193 100644
> --- a/src/video_output/video_output.c
> +++ b/src/video_output/video_output.c
> @@ -177,13 +177,17 @@ static vout_thread_t *VoutCreate(vlc_object_t *object,
>           };
>   
>           vout_window_t *window = vout_display_window_New(vout, &wcfg);
> -        if (window != NULL)
> -        {
> -            if (var_InheritBool(vout, "video-wallpaper"))
> -                vout_window_SetState(window, VOUT_WINDOW_STATE_BELOW);
> -            else if (var_InheritBool(vout, "video-on-top"))
> -                vout_window_SetState(window, VOUT_WINDOW_STATE_ABOVE);
> +        if (unlikely(window == NULL)) {
> +            spu_Destroy(vout->p->spu);
> +            vlc_object_release(vout);
> +            return NULL;
>           }
> +
> +        if (var_InheritBool(vout, "video-wallpaper"))
> +            vout_window_SetState(window, VOUT_WINDOW_STATE_BELOW);
> +        else if (var_InheritBool(vout, "video-on-top"))
> +            vout_window_SetState(window, VOUT_WINDOW_STATE_ABOVE);
> +
>           vout->p->window = window;
>       } else
>           vout->p->window = NULL;
> @@ -618,14 +622,6 @@ static void VoutGetDisplayCfg(vout_thread_t *vout, vout_display_cfg_t *cfg)
>           cfg->align.vertical = VOUT_DISPLAY_ALIGN_BOTTOM;
>   }
>   
> -void vout_DeleteDisplayWindow(vout_thread_t *vout)
> -{
> -    if (vout->p->window != NULL) {
> -        vout_display_window_Delete(vout->p->window);
> -        vout->p->window = NULL;
> -    }
> -}
> -
>   void vout_SetDisplayWindowSize(vout_thread_t *vout,
>                                  unsigned width, unsigned height)
>   {
> @@ -635,12 +631,6 @@ void vout_SetDisplayWindowSize(vout_thread_t *vout,
>       /* Request a resize of the window. If it fails, there is nothing to do.
>        * If it succeeds, the window will emit a resize event later. */
>           vout_window_SetSize(window, width, height);
> -    else
> -    if (vout->p->display.vd != NULL)
> -    /* Force a resize of window-less display. This is not allowed to fail,
> -     * although the display is allowed to ignore the size anyway. */
> -        /* FIXME: remove this, fix MSW and OS/2 window providers */
> -        vout_display_SendEventDisplaySize(vout->p->display.vd, width, height);
>   }
>   
>   /* */
> @@ -1352,13 +1342,15 @@ static void ThreadChangeFullscreen(vout_thread_t *vout, bool fullscreen)
>   {
>       vout_window_t *window = vout->p->window;
>   
> -    if (window != NULL)
> -        vout_window_SetFullScreen(window, fullscreen);
> +    if (window == NULL)
> +        return; /* splitter! */
> +
> +    vout_window_SetFullScreen(window, fullscreen);
>   #if defined(_WIN32) || defined(__OS2__)
>       /* FIXME: remove this event */
>       if (vout->p->display.vd != NULL)
>           vout_display_SendEventFullscreen(vout->p->display.vd, fullscreen,
> -                                         window != NULL);
> +                                         true);
>   #endif
>   }
>   
> @@ -1366,13 +1358,10 @@ static void ThreadChangeWindowState(vout_thread_t *vout, unsigned state)
>   {
>       vout_window_t *window = vout->p->window;
>   
> -    if (window != NULL)
> -        vout_window_SetState(window, state);
> -#if defined(_WIN32) || defined(__OS2__)
> -    else /* FIXME: remove this event */
> -    if (vout->p->display.vd != NULL)
> -        vout_display_SendWindowState(vout->p->display.vd, state);
> -#endif
> +    if (window == NULL)
> +        return; /* splitter! */
> +
> +    vout_window_SetState(window, state);
>   }
>   
>   static void ThreadTranslateMouseState(vout_thread_t *vout,
>
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> vlc-commits at videolan.org
> https://mailman.videolan.org/listinfo/vlc-commits



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