static CoglBool
_cogl_winsys_egl_context_created (CoglDisplay *display,
CoglError **error)
{
CoglRenderer *renderer = display->renderer;
CoglRendererEGL *egl_renderer = renderer->winsys;
CoglDisplayEGL *egl_display = display->winsys;
if ((egl_renderer->private_features &
COGL_EGL_WINSYS_FEATURE_SURFACELESS_CONTEXT) == 0 &&
!make_dummy_surface(display, error))
return FALSE;
if (!_cogl_winsys_egl_make_current (display,
egl_display->dummy_surface,
egl_display->dummy_surface,
egl_display->egl_context))
{
_cogl_set_error (error,
COGL_WINSYS_ERROR,
COGL_WINSYS_ERROR_CREATE_CONTEXT,
"%s",
"Unable to eglMakeCurrent with dummy surface");
}
return TRUE;
}
static gboolean
clutter_backend_wayland_create_context (ClutterBackend *backend,
GError **error)
{
ClutterBackendWayland *backend_wayland = CLUTTER_BACKEND_WAYLAND (backend);
const gchar *egl_extensions = NULL;
gboolean status;
int retry_cookie;
gboolean try_fallback;
GError *try_error = NULL;
if (backend_wayland->egl_context != EGL_NO_CONTEXT)
return TRUE;
#if defined(HAVE_COGL_GL)
eglBindAPI (EGL_OPENGL_API);
#else
eglBindAPI (EGL_OPENGL_ES_API);
#endif
egl_extensions = eglQueryString (backend_wayland->edpy, EGL_EXTENSIONS);
if (!_cogl_check_extension (_COGL_SURFACELESS_EXTENSION, egl_extensions))
{
g_debug("Could not find the " _COGL_SURFACELESS_EXTENSION
" extension; falling back to binding a dummy surface");
if (!make_dummy_surface(backend_wayland))
{
g_set_error (error, CLUTTER_INIT_ERROR,
CLUTTER_INIT_ERROR_BACKEND,
"Could not create dummy surface");
return FALSE;
}
}
else
{
backend_wayland->egl_config = NULL;
backend_wayland->egl_surface = EGL_NO_SURFACE;
}
retry_cookie = 0;
while (!(status = try_create_context (backend,
retry_cookie,
&try_fallback,
&try_error)) &&
try_fallback)
{
g_warning ("Failed to create context: %s\nWill try fallback...",
try_error->message);
g_error_free (try_error);
try_error = NULL;
retry_cookie++;
}
if (!status)
g_propagate_error (error, try_error);
return status;
}
