vda: make independent from cocoa backend

Basically, don't access the vo field.

There's also no reason anymore to access MPGLContext. We still need to
access loaded GL functions though, so add a field for that to gl_hwdec.

Untested.

1 files changed, 1 insertions, 0 deletions

diff --git a/video/out/vo_opengl.c b/video/out/vo_opengl.c
index d3fdf88372..482eed1b79 100644
--- a/video/out/vo_opengl.c
+++ b/video/out/vo_opengl.c
@@ -228,6 +228,7 @@ static void load_hwdec_driver(struct gl_priv *p,
         .driver = drv,
         .log = mp_log_new(hwdec, p->vo->log, drv->api_name),
         .mpgl = p->glctx,
+        .gl = p->glctx->gl,
         .info = &p->hwdec_info,
         .gl_texture_target = GL_TEXTURE_2D,
     };