gl: Fix leak of the whole CGL context

This was leaking the CGL context and several resources
allocated in the context, around 70MB for a 1080p clip

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2736>

diff --git a/subprojects/gst-plugins-base/gst-libs/gst/gl/cocoa/gstglcontext_cocoa.m b/subprojects/gst-plugins-base/gst-libs/gst/gl/cocoa/gstglcontext_cocoa.m
index 3adb0cd..6b618d2 100644 (file)
--- a/subprojects/gst-plugins-base/gst-libs/gst/gl/cocoa/gstglcontext_cocoa.m
+++ b/subprojects/gst-plugins-base/gst-libs/gst/gl/cocoa/gstglcontext_cocoa.m
@@ -352,7 +352,12 @@ gst_gl_context_cocoa_swap_buffers (GstGLContext * context)
 static void
 gst_gl_context_cocoa_destroy_context (GstGLContext *context)
 {
-  /* FIXME: Need to release context and other things? */
+  GstGLContextCocoa *context_cocoa = GST_GL_CONTEXT_COCOA (context);
+
+  if (context_cocoa->priv->gl_context != NULL) {
+    CGLDestroyContext(context_cocoa->priv->gl_context);
+    context_cocoa->priv->gl_context = NULL;
+  }
 }
 
 static guintptr