[vlc-devel] [PATCH v3 04/10] video_output: conditionnally enable display rendering

[Alexandre Janniaux]

Add a function to enable or disable the rendering on a vout_thread_t.
This will be used by the window callbacks to prevent rendering on the
window when the visibility change events are triggered.
---
 src/video_output/video_output.c  | 11 +++++++++++
 src/video_output/vout_internal.h |  1 +
 2 files changed, 12 insertions(+)

diff --git a/src/video_output/video_output.c b/src/video_output/video_output.c
index d04d3f4d11..489d5205e6 100644
--- a/src/video_output/video_output.c
+++ b/src/video_output/video_output.c
@@ -142,6 +142,7 @@ typedef struct vout_thread_sys_t
     vlc_decoder_device *dec_device;
 
     /* Video output display */
+    bool            rendering_enabled;
     vout_display_cfg_t display_cfg;
     vout_display_t *display;
     vlc_mutex_t     display_lock;
@@ -655,6 +656,15 @@ void vout_ChangeCrop(vout_thread_t *vout,
     vlc_mutex_unlock(&sys->display_lock);
 }
 
+void vout_ChangeDisplayRenderingEnabled(vout_thread_t *vout, bool enabled)
+{
+    vout_thread_sys_t *sys = VOUT_THREAD_TO_SYS(vout);
+    assert(!sys->dummy);
+    vlc_mutex_lock(&sys->display_lock);
+    sys->rendering_enabled = enabled;
+    vlc_mutex_unlock(&sys->display_lock);
+}
+
 void vout_ControlChangeFilters(vout_thread_t *vout, const char *filters)
 {
     vout_thread_sys_t *sys = VOUT_THREAD_TO_SYS(vout);
@@ -1942,6 +1952,7 @@ static vout_thread_sys_t *vout_CreateCommon(vlc_object_t *object)
 
     vout_thread_sys_t *sys = vout;
     vlc_atomic_rc_init(&sys->rc);
+    sys->rendering_enabled = true;
 
     return vout;
 }
diff --git a/src/video_output/vout_internal.h b/src/video_output/vout_internal.h
index fb24b51ee8..37684c3c51 100644
--- a/src/video_output/vout_internal.h
+++ b/src/video_output/vout_internal.h
@@ -155,6 +155,7 @@ void vout_ChangeDisplayFilled(vout_thread_t *, bool is_filled);
 void vout_ChangeZoom(vout_thread_t *, unsigned num, unsigned den);
 void vout_ChangeDisplayAspectRatio(vout_thread_t *, unsigned num, unsigned den);
 void vout_ChangeCrop(vout_thread_t *, const struct vout_crop *);
+void vout_ChangeDisplayRenderingEnabled(vout_thread_t *, bool);
 void vout_ControlChangeFilters(vout_thread_t *, const char *);
 void vout_ControlChangeInterlacing(vout_thread_t *, bool);
 void vout_ControlChangeSubSources(vout_thread_t *, const char *);
-- 
2.30.1