void MediaPlayerPrivateGStreamerBase::handleNeedContextMessage(GstMessage* message)
{
#if USE(GSTREAMER_GL)
const gchar* contextType;
gst_message_parse_context_type(message, &contextType);
if (!ensureGstGLContext())
return;
if (!g_strcmp0(contextType, GST_GL_DISPLAY_CONTEXT_TYPE)) {
GstContext* displayContext = gst_context_new(GST_GL_DISPLAY_CONTEXT_TYPE, TRUE);
gst_context_set_gl_display(displayContext, m_glDisplay.get());
gst_element_set_context(GST_ELEMENT(message->src), displayContext);
return;
}
if (!g_strcmp0(contextType, "gst.gl.app_context")) {
GstContext* appContext = gst_context_new("gst.gl.app_context", TRUE);
GstStructure* structure = gst_context_writable_structure(appContext);
gst_structure_set(structure, "context", GST_GL_TYPE_CONTEXT, m_glContext.get(), nullptr);
gst_element_set_context(GST_ELEMENT(message->src), appContext);
return;
}
#else
UNUSED_PARAM(message);
#endif // USE(GSTREAMER_GL)
}
static gboolean
sync_bus_call (GstBus * bus, GstMessage * msg, gpointer data)
{
switch (GST_MESSAGE_TYPE (msg)) {
case GST_MESSAGE_NEED_CONTEXT:
{
const gchar *context_type;
gst_message_parse_context_type (msg, &context_type);
g_print ("got need context %s\n", context_type);
if (g_strcmp0 (context_type, GST_GL_DISPLAY_CONTEXT_TYPE) == 0) {
GstContext *display_context =
gst_context_new (GST_GL_DISPLAY_CONTEXT_TYPE, TRUE);
gst_context_set_gl_display (display_context, sdl_gl_display);
gst_element_set_context (GST_ELEMENT (msg->src), display_context);
return TRUE;
} else if (g_strcmp0 (context_type, "gst.gl.app_context") == 0) {
GstContext *app_context = gst_context_new ("gst.gl.app_context", TRUE);
GstStructure *s = gst_context_writable_structure (app_context);
gst_structure_set (s, "context", GST_GL_TYPE_CONTEXT, sdl_context,
NULL);
gst_element_set_context (GST_ELEMENT (msg->src), app_context);
return TRUE;
}
break;
}
default:
break;
}
return FALSE;
}
gboolean
gst_gl_handle_context_query (GstElement * element, GstQuery * query,
GstGLDisplay ** display)
{
gboolean res = FALSE;
const gchar *context_type;
GstContext *context, *old_context;
g_return_val_if_fail (element != NULL, FALSE);
g_return_val_if_fail (query != NULL, FALSE);
g_return_val_if_fail (display != NULL, FALSE);
gst_query_parse_context_type (query, &context_type);
if (g_strcmp0 (context_type, GST_GL_DISPLAY_CONTEXT_TYPE) == 0) {
gst_query_parse_context (query, &old_context);
if (old_context)
context = gst_context_copy (old_context);
else
context = gst_context_new (GST_GL_DISPLAY_CONTEXT_TYPE, TRUE);
gst_context_set_gl_display (context, *display);
gst_query_set_context (query, context);
gst_context_unref (context);
res = *display != NULL;
}
return res;
}
/* 4) Create a context by itself and post a GST_MESSAGE_HAVE_CONTEXT
* message.
*/
static void
gst_gl_display_context_propagate (GstElement * element, GstGLDisplay * display)
{
GstContext *context;
GstMessage *msg;
if (!display) {
GST_ERROR_OBJECT (element, "Could not get GL display connection");
return;
}
context = gst_context_new (GST_GL_DISPLAY_CONTEXT_TYPE, TRUE);
gst_context_set_gl_display (context, display);
GST_CAT_INFO_OBJECT (GST_CAT_CONTEXT, element,
"posting have context (%p) message with display (%p)", context, display);
msg = gst_message_new_have_context (GST_OBJECT_CAST (element), context);
gst_element_post_message (GST_ELEMENT_CAST (element), msg);
}
static GstContext *gub_provide_graphic_context_egl(GUBGraphicContextEGL *gcontext, const gchar *type)
{
GstContext *context = NULL;
gub_log("Providing context. gub_context=%p, type=%s", gcontext, type);
if (!gcontext) return NULL;
if (type != NULL) {
if (g_strcmp0(type, GST_GL_DISPLAY_CONTEXT_TYPE) == 0) {
context = gst_context_new(GST_GL_DISPLAY_CONTEXT_TYPE, TRUE);
gst_context_set_gl_display(context, gcontext->display);
}
else if (g_strcmp0(type, "gst.gl.app_context") == 0) {
GstStructure *s;
context = gst_context_new("gst.gl.app_context", TRUE);
s = gst_context_writable_structure(context);
gst_structure_set(s, "context", GST_GL_TYPE_CONTEXT, gcontext->gl, NULL);
}
else if (g_strcmp0(type, "gst.gl.local_context") == 0) {
GstGLContext *local_context = gst_gl_context_new(gcontext->display);
GError *error = NULL;
gst_gl_context_create(local_context, gcontext->gl, &error);
if (error) {
gub_log("Cannot create local context: %s", error->message);
g_error_free(error);
}
else {
GstStructure *s;
context = gst_context_new("gst.gl.local_context", TRUE);
s = gst_context_writable_structure(context);
gst_structure_set(s, "context", GST_GL_TYPE_CONTEXT, local_context, NULL);
}
}
}
return context;
}
/**
* gst_gl_handle_context_query:
* @element: a #GstElement
* @query: a #GstQuery of type %GST_QUERY_CONTEXT
* @display: (transfer none) (nullable): a #GstGLDisplay
* @context: (transfer none) (nullable): a #GstGLContext
* @other_context: (transfer none) (nullable): application provided #GstGLContext
*
* Returns: Whether the @query was successfully responded to from the passed
* @display, @context, and @other_context.
*/
gboolean
gst_gl_handle_context_query (GstElement * element, GstQuery * query,
GstGLDisplay * display, GstGLContext * gl_context,
GstGLContext * other_context)
{
const gchar *context_type;
GstContext *context, *old_context;
g_return_val_if_fail (GST_IS_ELEMENT (element), FALSE);
g_return_val_if_fail (GST_IS_QUERY (query), FALSE);
g_return_val_if_fail (display == NULL || GST_IS_GL_DISPLAY (display), FALSE);
g_return_val_if_fail (gl_context == NULL
|| GST_IS_GL_CONTEXT (gl_context), FALSE);
g_return_val_if_fail (other_context == NULL
|| GST_IS_GL_CONTEXT (other_context), FALSE);
GST_LOG_OBJECT (element, "handle context query %" GST_PTR_FORMAT, query);
gst_query_parse_context_type (query, &context_type);
if (display && g_strcmp0 (context_type, GST_GL_DISPLAY_CONTEXT_TYPE) == 0) {
gst_query_parse_context (query, &old_context);
if (old_context)
context = gst_context_copy (old_context);
else
context = gst_context_new (GST_GL_DISPLAY_CONTEXT_TYPE, TRUE);
gst_context_set_gl_display (context, display);
gst_query_set_context (query, context);
gst_context_unref (context);
GST_DEBUG_OBJECT (element, "successfully set %" GST_PTR_FORMAT
" on %" GST_PTR_FORMAT, display, query);
return TRUE;
}
#if GST_GL_HAVE_WINDOW_X11
else if (display && g_strcmp0 (context_type, "gst.x11.display.handle") == 0) {
GstStructure *s;
gst_query_parse_context (query, &old_context);
if (old_context)
context = gst_context_copy (old_context);
else
context = gst_context_new ("gst.x11.display.handle", TRUE);
if (gst_gl_display_get_handle_type (display) & GST_GL_DISPLAY_TYPE_X11) {
Display *x11_display = (Display *) gst_gl_display_get_handle (display);
if (x11_display) {
s = gst_context_writable_structure (context);
gst_structure_set (s, "display", G_TYPE_POINTER, x11_display, NULL);
gst_query_set_context (query, context);
gst_context_unref (context);
GST_DEBUG_OBJECT (element, "successfully set x11 display %p (from %"
GST_PTR_FORMAT ") on %" GST_PTR_FORMAT, x11_display, display,
query);
return TRUE;
}
}
}
#endif
#if GST_GL_HAVE_WINDOW_WAYLAND
else if (display
&& g_strcmp0 (context_type, "GstWaylandDisplayHandleContextType") == 0) {
GstStructure *s;
gst_query_parse_context (query, &old_context);
if (old_context)
context = gst_context_copy (old_context);
else
context = gst_context_new ("GstWaylandDisplayHandleContextType", TRUE);
if (gst_gl_display_get_handle_type (display) & GST_GL_DISPLAY_TYPE_WAYLAND) {
struct wl_display *wayland_display =
(struct wl_display *) gst_gl_display_get_handle (display);
if (wayland_display) {
s = gst_context_writable_structure (context);
gst_structure_set (s, "display", G_TYPE_POINTER, wayland_display, NULL);
gst_query_set_context (query, context);
gst_context_unref (context);
GST_DEBUG_OBJECT (element, "successfully set wayland display %p (from %"
GST_PTR_FORMAT ") on %" GST_PTR_FORMAT, wayland_display, display,
query);
return TRUE;
}
}
}
#endif
else if (other_context && g_strcmp0 (context_type, "gst.gl.app_context") == 0) {
GstStructure *s;
gst_query_parse_context (query, &old_context);
if (old_context)
context = gst_context_copy (old_context);
else
context = gst_context_new ("gst.gl.app_context", TRUE);
s = gst_context_writable_structure (context);
gst_structure_set (s, "context", GST_TYPE_GL_CONTEXT, other_context, NULL);
gst_query_set_context (query, context);
gst_context_unref (context);
GST_DEBUG_OBJECT (element, "successfully set application GL context %"
GST_PTR_FORMAT " on %" GST_PTR_FORMAT, other_context, query);
return TRUE;
} else if (gl_context
&& g_strcmp0 (context_type, "gst.gl.local_context") == 0) {
GstStructure *s;
gst_query_parse_context (query, &old_context);
if (old_context)
context = gst_context_copy (old_context);
else
context = gst_context_new ("gst.gl.local_context", TRUE);
s = gst_context_writable_structure (context);
gst_structure_set (s, "context", GST_TYPE_GL_CONTEXT, gl_context, NULL);
gst_query_set_context (query, context);
gst_context_unref (context);
GST_DEBUG_OBJECT (element, "successfully set GL context %"
GST_PTR_FORMAT " on %" GST_PTR_FORMAT, gl_context, query);
return TRUE;
}
return FALSE;
}
gboolean
gst_gl_handle_context_query (GstElement * element, GstQuery * query,
GstGLDisplay ** display, GstGLContext ** other_context)
{
gboolean res = FALSE;
const gchar *context_type;
GstContext *context, *old_context;
g_return_val_if_fail (element != NULL, FALSE);
g_return_val_if_fail (query != NULL, FALSE);
g_return_val_if_fail (display != NULL, FALSE);
g_return_val_if_fail (other_context != NULL, FALSE);
gst_query_parse_context_type (query, &context_type);
if (g_strcmp0 (context_type, GST_GL_DISPLAY_CONTEXT_TYPE) == 0) {
gst_query_parse_context (query, &old_context);
if (old_context)
context = gst_context_copy (old_context);
else
context = gst_context_new (GST_GL_DISPLAY_CONTEXT_TYPE, TRUE);
gst_context_set_gl_display (context, *display);
gst_query_set_context (query, context);
gst_context_unref (context);
res = *display != NULL;
}
#if GST_GL_HAVE_WINDOW_X11
else if (g_strcmp0 (context_type, "gst.x11.display.handle") == 0) {
GstStructure *s;
Display *x11_display = NULL;
gst_query_parse_context (query, &old_context);
if (old_context)
context = gst_context_copy (old_context);
else
context = gst_context_new ("gst.x11.display.handle", TRUE);
if (*display
&& ((*display)->type & GST_GL_DISPLAY_TYPE_X11) ==
GST_GL_DISPLAY_TYPE_X11)
x11_display = (Display *) gst_gl_display_get_handle (*display);
s = gst_context_writable_structure (context);
gst_structure_set (s, "display", G_TYPE_POINTER, x11_display, NULL);
gst_query_set_context (query, context);
gst_context_unref (context);
res = x11_display != NULL;
}
#endif
#if GST_GL_HAVE_WINDOW_WAYLAND
else if (g_strcmp0 (context_type, "GstWaylandDisplayHandleContextType") == 0) {
GstStructure *s;
struct wl_display *wayland_display = NULL;
gst_query_parse_context (query, &old_context);
if (old_context)
context = gst_context_copy (old_context);
else
context = gst_context_new ("GstWaylandDisplayHandleContextType", TRUE);
if (*display
&& ((*display)->type & GST_GL_DISPLAY_TYPE_WAYLAND) ==
GST_GL_DISPLAY_TYPE_WAYLAND)
wayland_display =
(struct wl_display *) gst_gl_display_get_handle (*display);
s = gst_context_writable_structure (context);
gst_structure_set (s, "display", G_TYPE_POINTER, wayland_display, NULL);
gst_query_set_context (query, context);
gst_context_unref (context);
res = wayland_display != NULL;
}
#endif
else if (g_strcmp0 (context_type, "gst.gl.app_context") == 0) {
GstStructure *s;
gst_query_parse_context (query, &old_context);
if (old_context)
context = gst_context_copy (old_context);
else
context = gst_context_new ("gst.gl.app_context", TRUE);
s = gst_context_writable_structure (context);
gst_structure_set (s, "context", GST_GL_TYPE_CONTEXT, *other_context, NULL);
gst_query_set_context (query, context);
gst_context_unref (context);
res = *other_context != NULL;
}
return res;
}
