video: have a generic context struct for hwdec backends

Before this commit, each hw backend had their own specific struct types
for context, and some, like VDA, had none at all. Add a context struct
(mp_hwdec_ctx) that provides a somewhat generic way to pass the hwdec
context around. Some things get slightly better, some slightly more
verbose.

mp_hwdec_info is still around; it's still needed, but is reduced to its
role of handling delayed loading of the hwdec backend.

1 files changed, 3 insertions, 1 deletions

diff --git a/video/out/vo_opengl.c b/video/out/vo_opengl.c
index bfb1adbec8..058b305c2f 100644
--- a/video/out/vo_opengl.c
+++ b/video/out/vo_opengl.c
@@ -224,8 +224,10 @@ static void request_hwdec_api(struct gl_priv *p, const char *api_name)
     if (p->hwdec)
         return;
     mpgl_lock(p->glctx);
-    p->hwdec = gl_hwdec_load_api(p->vo->log, p->gl, api_name, &p->hwdec_info);
+    p->hwdec = gl_hwdec_load_api(p->vo->log, p->gl, api_name);
     gl_video_set_hwdec(p->renderer, p->hwdec);
+    if (p->hwdec)
+        p->hwdec_info.hwctx = p->hwdec->hwctx;
     mpgl_unlock(p->glctx);
 }