replaced alloca by temp arena

Juliet/src/Graphics/D3D12/D3D12Synchronization.cpp

@@ -85,8 +85,9 @@ namespace Juliet::D3D12
     {
         auto d3d12driver = static_cast<D3D12Driver*>(driver.Get());
 
-        // TODO: use scratch allocator for alloca (stack alloc)
-        HANDLE* events = static_cast<HANDLE*>(alloca(sizeof(HANDLE) * numFences));
+        TempArena tempArena = ArenaTempBegin(d3d12driver->DriverArena);
+
+        HANDLE* events = ArenaPushArray<HANDLE>(tempArena.Arena, numFences, "JUST IN CASE");
         MemoryZero(events, sizeof(HANDLE) * numFences);
 
         for (uint32 i = 0; i < numFences; ++i)
@@ -97,6 +98,7 @@ namespace Juliet::D3D12
             if (FAILED(res))
             {
                 LogError(d3d12driver->D3D12Device, "Setting fence event failed!", res);
+                ArenaTempEnd(tempArena);
                 return false;
             }
 
@@ -113,6 +115,9 @@ namespace Juliet::D3D12
         }
 
         DWORD waitResult = WaitForMultipleObjects(numFences, events, waitForAll, INFINITE);
+
+        ArenaTempEnd(tempArena);
+
         if (waitResult == WAIT_FAILED)
         {
             LogError(LogCategory::Graphics, "Wait failed");
@@ -155,8 +160,8 @@ namespace Juliet::D3D12
         auto d3d12Fence  = reinterpret_cast<D3D12Fence*>(fence.Get());
 
 #if JULIET_DEBUG
-        LogDebug(LogCategory::Graphics, "ReleaseFence | %x fence. Handle %x | Event %x | Refcount %d | Querier %s", d3d12Fence,
-                 d3d12Fence->Handle, d3d12Fence->Event, d3d12Fence->ReferenceCount, CStr(querier));
+        LogDebug(LogCategory::Graphics, "ReleaseFence | %x fence. Handle %x | Event %x | Refcount %d | Querier %s",
+                 d3d12Fence, d3d12Fence->Handle, d3d12Fence->Event, d3d12Fence->ReferenceCount, CStr(querier));
 #endif
         if (--d3d12Fence->ReferenceCount == 0)
         {