static void
_set_window_handle_cb (GstSetWindowHandleCb * data)
{
GstGLContext *context = gst_gl_window_get_context (data->window);
GstGLWindowClass *window_class = GST_GL_WINDOW_GET_CLASS (data->window);
GThread *thread = NULL;
/* deactivate if necessary */
if (context) {
thread = gst_gl_context_get_thread (context);
if (thread) {
/* This is only thread safe iff the context thread == g_thread_self() */
g_assert (thread == g_thread_self ());
gst_gl_context_activate (context, FALSE);
}
}
window_class->set_window_handle (data->window, data->handle);
/* reactivate */
if (context && thread)
gst_gl_context_activate (context, TRUE);
if (context)
gst_object_unref (context);
if (thread)
g_thread_unref (thread);
}
static void
check_wrapped (gpointer data)
{
GstGLContext *wrapped_context = data;
GError *error = NULL;
gint i = 0;
gboolean ret;
/* check that scheduling on an unactivated wrapped context asserts */
ASSERT_CRITICAL (gst_gl_context_thread_add (wrapped_context,
(GstGLContextThreadFunc) accum_true, &i));
fail_if (i != 0);
/* check that scheduling on an activated context succeeds */
gst_gl_context_activate (wrapped_context, TRUE);
gst_gl_context_thread_add (wrapped_context,
(GstGLContextThreadFunc) accum_true, &i);
fail_if (i != 1);
/* check filling out the wrapped context's info */
fail_if (wrapped_context->gl_vtable->TexImage2D != NULL);
ret = gst_gl_context_fill_info (wrapped_context, &error);
fail_if (!ret, "error received %s\n",
error ? error->message : "Unknown error");
fail_if (wrapped_context->gl_vtable->TexImage2D == NULL);
gst_gl_context_activate (wrapped_context, FALSE);
}
GstGLContext *
gst_gl_context_gpu_process_new (GstGLDisplay * display,
GstGLAPI gl_api, GstGLProcAddrFunc proc_addr)
{
GstGLContext *context = NULL;
GstGLContextGPUProcess *gpu_context = NULL;
GstGLContextClass *context_class = NULL;
GstGLWindow *window = NULL;
GError *error = NULL;
g_return_val_if_fail ((gst_gl_display_get_gl_api (display) & gl_api) !=
GST_GL_API_NONE, NULL);
gpu_context = g_object_new (GST_GL_TYPE_CONTEXT_GPU_PROCESS, NULL);
gpu_context->priv->gl_api = gl_api;
context = GST_GL_CONTEXT (gpu_context);
context->display = display;
gst_gl_display_add_context (display, context);
context_class = GST_GL_CONTEXT_GET_CLASS (context);
context_class->get_current_context = NULL;
context_class->get_proc_address = GST_DEBUG_FUNCPTR (proc_addr);
gst_gl_context_activate (context, TRUE);
gst_gl_context_fill_info (context, &error);
if (error) {
GST_ERROR_OBJECT (context, "Failed to create gpu process context: %s",
error->message);
g_error_free (error);
gst_object_unref (context);
return NULL;
}
window = GST_GL_WINDOW (gst_gl_window_gpu_process_new (display));
gst_gl_context_set_window (context, window);
GST_GL_WINDOW_GET_CLASS (window)->open (window, NULL);
gst_object_unref (window);
return context;
}
//gboolean
//gst_gl_context_create (GstGLContext * context, GstGLContext * other_context, GError ** error)
static gpointer
gst_gl_context_create_thread (GstGLContext * context)
{
GstGLContextClass *context_class;
GstGLWindowClass *window_class;
GstGLFuncs *gl;
GstGLAPI compiled_api, user_api, gl_api, display_api;
gchar *api_string;
gchar *compiled_api_s;
gchar *user_api_s;
gchar *display_api_s;
const gchar *user_choice;
GError **error;
GstGLContext *other_context;
g_mutex_lock (&context->priv->render_lock);
GST_DEBUG_OBJECT (context, "Creating thread");
error = context->priv->error;
other_context = g_weak_ref_get (&context->priv->other_context_ref);
context_class = GST_GL_CONTEXT_GET_CLASS (context);
window_class = GST_GL_WINDOW_GET_CLASS (context->window);
display_api = gst_gl_display_get_gl_api_unlocked (context->display);
if (display_api == GST_GL_API_NONE) {
g_set_error (error, GST_GL_CONTEXT_ERROR, GST_GL_CONTEXT_ERROR_WRONG_API,
"Cannot create context with satisfying requested apis "
"(display has no GL api!)");
goto failure;
}
if (window_class->open) {
if (!window_class->open (context->window, error)) {
GST_WARNING_OBJECT (context, "Failed to open window");
g_assert (error == NULL || *error != NULL);
goto failure;
}
}
gl = context->gl_vtable;
compiled_api = _compiled_api ();
compiled_api_s = gst_gl_api_to_string (compiled_api);
user_choice = g_getenv ("GST_GL_API");
user_api = gst_gl_api_from_string (user_choice);
user_api_s = gst_gl_api_to_string (user_api);
display_api_s = gst_gl_api_to_string (display_api);
if ((user_api & compiled_api & display_api) == GST_GL_API_NONE) {
g_set_error (error, GST_GL_CONTEXT_ERROR, GST_GL_CONTEXT_ERROR_WRONG_API,
"Cannot create context with the user requested api (%s). "
"We have support for (%s), display api (%s)", user_api_s,
compiled_api_s, display_api_s);
g_free (user_api_s);
g_free (compiled_api_s);
g_free (display_api_s);
goto failure;
}
if (context_class->choose_format &&
!context_class->choose_format (context, error)) {
GST_WARNING_OBJECT (context, "Failed to choose format");
g_assert (error == NULL || *error != NULL);
g_free (compiled_api_s);
g_free (user_api_s);
g_free (display_api_s);
goto failure;
}
GST_INFO_OBJECT (context,
"Attempting to create opengl context. user chosen api(s) (%s), "
"compiled api support (%s) display api (%s)", user_api_s, compiled_api_s,
display_api_s);
if (!context_class->create_context (context,
compiled_api & user_api & display_api, other_context, error)) {
GST_WARNING_OBJECT (context, "Failed to create context");
g_assert (error == NULL || *error != NULL);
g_free (compiled_api_s);
g_free (user_api_s);
g_free (display_api_s);
goto failure;
}
GST_INFO_OBJECT (context, "created context");
if (!gst_gl_context_activate (context, TRUE)) {
g_set_error (error, GST_GL_CONTEXT_ERROR,
GST_GL_CONTEXT_ERROR_RESOURCE_UNAVAILABLE,
"Failed to activate the GL Context");
g_free (compiled_api_s);
g_free (user_api_s);
g_free (display_api_s);
goto failure;
}
gl_api = gst_gl_context_get_gl_api (context);
g_assert (gl_api != GST_GL_API_NONE && gl_api != GST_GL_API_ANY);
api_string = gst_gl_api_to_string (gl_api);
GST_INFO_OBJECT (context, "available GL APIs: %s", api_string);
if (((compiled_api & gl_api & display_api) & user_api) == GST_GL_API_NONE) {
g_set_error (error, GST_GL_CONTEXT_ERROR, GST_GL_CONTEXT_ERROR_WRONG_API,
"failed to create context, context "
"could not provide correct api. user (%s), compiled (%s), context (%s)",
user_api_s, compiled_api_s, api_string);
g_free (api_string);
g_free (compiled_api_s);
g_free (user_api_s);
g_free (display_api_s);
goto failure;
}
g_free (api_string);
g_free (compiled_api_s);
g_free (user_api_s);
g_free (display_api_s);
GST_DEBUG_OBJECT (context, "Filling info");
if (!gst_gl_context_fill_info (context, error)) {
g_assert (error == NULL || *error != NULL);
goto failure;
}
context->priv->alive = TRUE;
if (gl->DebugMessageCallback) {
#if !defined(GST_DISABLE_GST_DEBUG)
GST_INFO_OBJECT (context, "Enabling GL context debugging");
/* enable them all */
gl->DebugMessageControl (GL_DONT_CARE, GL_DONT_CARE, GL_DONT_CARE, 0, 0,
GL_TRUE);
gl->DebugMessageCallback (_gst_gl_debug_callback, context);
#endif
}
if (other_context) {
GST_DEBUG_OBJECT (context, "Unreffing other_context %" GST_PTR_FORMAT,
other_context);
gst_object_unref (other_context);
}
g_cond_signal (&context->priv->create_cond);
// g_mutex_unlock (&context->priv->render_lock);
gst_gl_window_send_message_async (context->window,
(GstGLWindowCB) _unlock_create_thread, context, NULL);
gst_gl_window_run (context->window);
GST_INFO_OBJECT (context, "loop exited");
g_mutex_lock (&context->priv->render_lock);
context->priv->alive = FALSE;
gst_gl_context_activate (context, FALSE);
context_class->destroy_context (context);
/* User supplied callback */
if (context->window->close)
context->window->close (context->window->close_data);
/* window specific shutdown */
if (window_class->close) {
window_class->close (context->window);
}
g_cond_signal (&context->priv->destroy_cond);
g_mutex_unlock (&context->priv->render_lock);
return NULL;
failure:
{
if (other_context)
gst_object_unref (other_context);
g_cond_signal (&context->priv->create_cond);
g_mutex_unlock (&context->priv->render_lock);
return NULL;
}
}
