[Spice-devel] [PATCH 09/14] Fails CCD initialisation if get_config_buffers detect WDDM is not present

[Frediano Ziglio]

There's no point continuing without WDDM as CCD cannot work without it.

Signed-off-by: Frediano Ziglio <fziglio at redhat.com>
---
 vdagent/display_configuration.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/vdagent/display_configuration.cpp b/vdagent/display_configuration.cpp
index 86f7f7b..5aed7be 100644
--- a/vdagent/display_configuration.cpp
+++ b/vdagent/display_configuration.cpp
@@ -844,6 +844,10 @@ bool CCD::get_config_buffers()
     LONG error(ERROR_SUCCESS);
     error = _pfnGetDisplayConfigBufferSizes(QDC_ALL_PATHS, &_numPathElements,
                                             &_numModeElements);
+    if (error == ERROR_NOT_SUPPORTED) {
+        vd_printf("GetDisplayConfigBufferSizes failed, missing WDDM");
+        throw std::exception();
+    }
     if (error) {
         vd_printf("%s: GetDisplayConfigBufferSizes failed with 0x%lx", __FUNCTION__, error);
         return false;
-- 
2.7.4