commit 83e156f7a0af66527ab162c6c134a45b0a16a7ed
author Ian Elliott <ian@LunarG.com> Fri May 15 17:52:29 2015 -0600
committer Ian Elliott <ian@LunarG.com> Fri May 15 17:54:02 2015 -0600
tree fe9458eca5cb84e930864fa38b635c1fcaa62a75
parent 32536f966d1b2d9034a467b36e398545ef54e9d1

wsi: Deal with drivers that don't allow query of swap-chain VkFormat.

demos/cube.c

diff --git a/demos/cube.c b/demos/cube.c
index 4406911..0d1ee87 100644
--- a/demos/cube.c
+++ b/demos/cube.c
@@ -1973,7 +1973,14 @@
     VkDisplayWSI display;
     err = vkGetPhysicalDeviceInfo(demo->gpu, VK_PHYSICAL_DEVICE_INFO_TYPE_DISPLAY_PROPERTIES_WSI,
                                   &data_size, NULL);
-    assert(!err);
+    if (err != VK_SUCCESS) {
+        printf("The Vulkan installable client driver (ICD) does not support "
+               "querying\nfor the swap-chain image format.  Therefore, am "
+               "hardcoding this\nformat to  VK_FORMAT_B8G8R8A8_UNORM.\n");
+        fflush(stdout);
+        demo->format = VK_FORMAT_B8G8R8A8_UNORM;
+        return;
+    }
     demo->display_props = (VkDisplayPropertiesWSI *) malloc(data_size);
     err = vkGetPhysicalDeviceInfo(demo->gpu, VK_PHYSICAL_DEVICE_INFO_TYPE_DISPLAY_PROPERTIES_WSI,
                                   &data_size, demo->display_props);