Added MemoryBufferPools::compileTraversalUseReserve bool hint to control whether the compile traversal should call MemoryBufferPools::reserve(requirements)

Author: robertosfield

include/vsg/vk/MemoryBufferPools.h

@@ -42,6 +42,9 @@ namespace vsg
         /// throw vsg::Exception when reserveMemory() fails to allocated memory on device.
         bool throwOutOfDeviceMemoryException = true;
 
+        /// hint whether the compile traversal should call MemoryBufferPools::reserve(requirements);
+        bool compileTraversalUseReserve = true;
+
         VkDeviceSize computeMemoryTotalAvailable() const;
         VkDeviceSize computeMemoryTotalReserved() const;
         VkDeviceSize computeBufferTotalAvailable() const;

src/vsg/vk/Context.cpp

@@ -197,7 +197,9 @@ VkResult Context::reserve(ResourceRequirements& requirements)
 {
     CPU_INSTRUMENTATION_L2_NC(instrumentation, "Context reserve", COLOR_COMPILE)
 
-    VkResult result = deviceMemoryBufferPools->reserve(requirements);
+    VkResult result = VK_SUCCESS;
+
+    if (deviceMemoryBufferPools->compileTraversalUseReserve) result = deviceMemoryBufferPools->reserve(requirements);
 
     resourceRequirements.maxSlots.merge(requirements.maxSlots);