From 68e15e8505bd85e67feaf7223804cfd41397d780 Mon Sep 17 00:00:00 2001
From: Bryan Bernhart <bryan.bernhart@intel.com>
Date: Fri, 22 Apr 2022 19:04:07 -0700
Subject: [PATCH] Log resource heap misalignments.

---
 src/gpgmm/d3d12/ResourceHeapAllocatorD3D12.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/gpgmm/d3d12/ResourceHeapAllocatorD3D12.cpp b/src/gpgmm/d3d12/ResourceHeapAllocatorD3D12.cpp
index 97aae71d5..9be57d766 100644
--- a/src/gpgmm/d3d12/ResourceHeapAllocatorD3D12.cpp
+++ b/src/gpgmm/d3d12/ResourceHeapAllocatorD3D12.cpp
@@ -57,6 +57,12 @@ namespace gpgmm { namespace d3d12 {
         // |alignment| to avoid wasting bytes.
         // https://docs.microsoft.com/en-us/windows/win32/api/d3d12/ns-d3d12-d3d12_HEAP_INFO
         const uint64_t heapSize = AlignTo(size, alignment);
+        if (heapSize > size) {
+            DebugEvent("ResourceHeapAllocator.TryAllocateMemory",
+                       ALLOCATOR_MESSAGE_ID_ALIGNMENT_MISMATCH)
+                << "Resource heap size is larger then the requested size (" +
+                       std::to_string(heapSize) + " vs " + std::to_string(size) + " bytes).";
+        }
 
         const DXGI_MEMORY_SEGMENT_GROUP memorySegmentGroup =
             GetPreferredMemorySegmentGroup(mDevice, mIsUMA, mHeapType);