misc: Add vkGetInstanceProcAddr() entrypoint

Adding this entrypoint as this has been discussed in khronos  and is needed
for the loader/layer/extension proposal.

Caveats:
1) Have not updated layers or any tests/demos yet that will come later;
2) No one including loader is using this call yet;
3) Leaving exisitng vkGetProcAddr() as is for now; later once loader
is using vkGetInstanceProcAddr call can switch vkGetProcAddr() to
vkGetDeviceProcAddr()

1 files changed, 1 insertions, 0 deletions

diff --git a/include/vkLayer.h b/include/vkLayer.h
index e95811b8..87a79e5d 100644
--- a/include/vkLayer.h
+++ b/include/vkLayer.h
@@ -26,6 +26,7 @@ typedef struct VkBaseLayerObject_
 typedef struct VkLayerDispatchTable_
 {
     PFN_vkGetProcAddr GetProcAddr;
+    PFN_vkGetInstanceProcAddr GetInstanceProcAddr;
     PFN_vkCreateInstance CreateInstance;
     PFN_vkDestroyInstance DestroyInstance;
     PFN_vkEnumeratePhysicalDevices EnumeratePhysicalDevices;