[vlc-devel] [PATCH 2/4] Update surface object when it's destroyed and recreated.

[Paulo Vitor Magacho da Silva]

---
 modules/video_output/android/android_window.c | 14 ++++++++++++++
 modules/video_output/android/surface.c        | 23 +++++++++++++++++------
 2 files changed, 31 insertions(+), 6 deletions(-)

diff --git a/modules/video_output/android/android_window.c b/modules/video_output/android/android_window.c
index e584a54..5c50975 100644
--- a/modules/video_output/android/android_window.c
+++ b/modules/video_output/android/android_window.c
@@ -73,6 +73,7 @@ extern void jni_detach_thread();
 extern jobject jni_LockAndGetAndroidJavaSurface();
 extern jobject jni_LockAndGetSubtitlesSurface();
 extern void  jni_UnlockAndroidSurface();
+extern bool  jni_LockAndGetIsSurfaceAttached();
 
 extern void  jni_SetSurfaceLayout(int width, int height, int visible_width, int visible_height, int sar_num, int sar_den);
 extern int jni_ConfigureSurface(jobject jsurf, int width, int height, int hal, bool *configured);
@@ -954,6 +955,13 @@ static picture_pool_t *Pool(vout_display_t *vd, unsigned requested_count)
 {
     vout_display_sys_t *sys = vd->sys;
 
+    if (!jni_LockAndGetIsSurfaceAttached() && sys->pool != NULL) {
+        msg_Dbg(vd, "Surface got destroyed");
+        picture_pool_Release(sys->pool);
+        sys->pool = NULL;
+    }
+    jni_UnlockAndroidSurface();
+
     if (sys->pool == NULL)
         sys->pool = PoolAlloc(vd, requested_count);
     return sys->pool;
@@ -982,6 +990,12 @@ static void Prepare(vout_display_t *vd, picture_t *picture,
             sys->p_sub_buffer_bounds = NULL;
         }
 
+        if (!jni_LockAndGetIsSurfaceAttached() && sys->p_sub_pic != NULL) {
+            picture_Release(sys->p_sub_pic);
+            sys->p_sub_pic = NULL;
+        }
+        jni_UnlockAndroidSurface();
+
         if (!sys->p_sub_pic && SetupWindowSubtitleSurface(sys) == 0)
             sys->p_sub_pic = PictureAlloc(sys, &sys->p_sub_window->fmt);
         if (!sys->p_spu_blend)
diff --git a/modules/video_output/android/surface.c b/modules/video_output/android/surface.c
index ce1f922..5ccb102 100644
--- a/modules/video_output/android/surface.c
+++ b/modules/video_output/android/surface.c
@@ -78,6 +78,7 @@ extern int jni_attach_thread(JNIEnv **env, const char *thread_name);
 extern void jni_detach_thread();
 extern jobject jni_LockAndGetAndroidJavaSurface();
 extern void  jni_UnlockAndroidSurface();
+extern bool  jni_LockAndGetIsSurfaceAttached();
 extern void *jni_AndroidJavaSurfaceToNativeSurface(jobject *surf);
 extern void  jni_SetSurfaceLayout(int width, int height, int visible_width, int visible_height, int sar_num, int sar_den);
 extern int jni_ConfigureSurface(jobject jsurf, int width, int height, int hal, bool *configured);
@@ -329,10 +330,8 @@ static int  AndroidLockSurface(picture_t *picture)
 
     if (!sys->native_surface) {
         picsys->surf = jni_LockAndGetAndroidJavaSurface();
-        if (unlikely(!picsys->surf)) {
-            jni_UnlockAndroidSurface();
-            return VLC_EGENERIC;
-        }
+        if (unlikely(!picsys->surf))
+            goto error;
         sys->native_surface = jni_AndroidJavaSurfaceToNativeSurface(picsys->surf);
         jni_UnlockAndroidSurface();
 
@@ -361,6 +360,11 @@ static int  AndroidLockSurface(picture_t *picture)
         UpdateLayout(sys);
     }
 
+    if (!jni_LockAndGetIsSurfaceAttached()) {
+        sys->native_surface = NULL;
+        goto error;
+    }
+
     if (sys->s_lock)
         sys->s_lock(sys->native_surface, info, 1);
     else
@@ -368,14 +372,20 @@ static int  AndroidLockSurface(picture_t *picture)
 
     if (info->w != sys->i_alloc_width || info->h != sh) {
         sys->s_unlockAndPost(sys->native_surface);
-        return VLC_EGENERIC;
+        goto error;
     }
 
+    jni_UnlockAndroidSurface();
+
     picture->p[0].p_pixels = (uint8_t*)info->bits;
     picture->p[0].i_lines = info->h;
     picture->p[0].i_pitch = picture->p[0].i_pixel_pitch * info->s;
 
     return VLC_SUCCESS;
+
+error:
+    jni_UnlockAndroidSurface();
+    return VLC_EGENERIC;
 }
 
 static void AndroidUnlockSurface(picture_t *picture)
@@ -383,8 +393,9 @@ static void AndroidUnlockSurface(picture_t *picture)
     picture_sys_t *picsys = picture->p_sys;
     vout_display_sys_t *sys = picsys->sys;
 
-    if (sys->native_surface)
+    if (jni_LockAndGetIsSurfaceAttached() && sys->native_surface)
         sys->s_unlockAndPost(sys->native_surface);
+    jni_UnlockAndroidSurface();
 }
 
 static void Display(vout_display_t *vd, picture_t *picture, subpicture_t *subpicture)
-- 
1.9.3 (Apple Git-50)