From e765a9bb00083ec1259f3e5f88c145a1522d01b9 Mon Sep 17 00:00:00 2001
From: Matthieu Bouron <matthieu.bouron@collabora.com>
Date: Mon, 27 Apr 2015 14:49:59 +0200
Subject: [PATCH] glfiltercube: Don't initialize multiple shaders on
 renegotiation

---
 ext/gl/gstglfiltercube.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/ext/gl/gstglfiltercube.c b/ext/gl/gstglfiltercube.c
index a17b5dfb8a..ad529b3c0f 100644
--- a/ext/gl/gstglfiltercube.c
+++ b/ext/gl/gstglfiltercube.c
@@ -292,6 +292,12 @@ gst_gl_filter_cube_reset_gl (GstGLFilter * filter)
     gl->DeleteBuffers (1, &cube_filter->vertex_buffer);
     cube_filter->vertex_buffer = 0;
   }
+
+  if (cube_filter->shader) {
+    gst_gl_context_del_shader (GST_GL_BASE_FILTER (filter)->context,
+        cube_filter->shader);
+    cube_filter->shader = NULL;
+  }
 }
 
 static gboolean
@@ -313,6 +319,11 @@ gst_gl_filter_cube_init_shader (GstGLFilter * filter)
 {
   GstGLFilterCube *cube_filter = GST_GL_FILTER_CUBE (filter);
 
+  if (cube_filter->shader) {
+    gst_object_unref (cube_filter->shader);
+    cube_filter->shader = NULL;
+  }
+
   /* blocking call, wait the opengl thread has compiled the shader */
   return gst_gl_context_gen_shader (GST_GL_BASE_FILTER (filter)->context,
       cube_v_src, cube_f_src, &cube_filter->shader);