Added use of TransferTask to BufferInfo:copyDataToBuffer

Author: robertosfield

include/vsg/vk/Device.h

@@ -25,6 +25,7 @@ namespace vsg
     class WindowTraits;
     class MemoryBufferPools;
     class DescriptorPools;
+    class TransferTask;
 
     struct QueueSetting
     {
@@ -87,10 +88,11 @@ namespace vsg
         /// return the amount of memory available in deviceMemoryBufferPools and allocatable on device
         VkDeviceSize availableMemory(bool includeMemoryPools = true) const;
 
-        // provide observer_ptr to memory buffer and descriptor pools so that these can be accessed when required
+        // provide observer_ptr to memory buffer, descriptor pools and transferTask so that these can be accessed when required
         observer_ptr<MemoryBufferPools> deviceMemoryBufferPools;
         observer_ptr<MemoryBufferPools> stagingMemoryBufferPools;
         observer_ptr<DescriptorPools> descriptorPools;
+        observer_ptr<TransferTask> transferTask;
 
     protected:
         virtual ~Device();

src/vsg/app/RecordAndSubmitTask.cpp

@@ -39,6 +39,8 @@ RecordAndSubmitTask::RecordAndSubmitTask(Device* in_device, uint32_t numBuffers)
 
     earlyTransferConsumerCompletedSemaphore = Semaphore::create(in_device);
     lateTransferConsumerCompletedSemaphore = Semaphore::create(in_device);
+
+    if (!device->transferTask) device->transferTask = transferTask;
 }
 
 void RecordAndSubmitTask::advance()

src/vsg/state/BufferInfo.cpp

@@ -113,12 +113,19 @@ void BufferInfo::copyDataToBuffer(uint32_t deviceID)
     {
         if ((dm->getMemoryPropertyFlags() & VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT) == 0)
         {
-            warn("BufferInfo::copyDataToBuffer() cannot copy data. DeviceMemory does not support direct memory mapping.");
+            if (auto transferTask = dm->getDevice()->transferTask.ref_ptr())
+            {
+                transferTask->assign(BufferInfoList{ref_ptr<BufferInfo>(this)});
+            }
+            else
+            {
+                warn("BufferInfo::copyDataToBuffer() cannot copy data. DeviceMemory does not support direct memory mapping.");
 
-            // you can use dynamic data updates provided by vsg::TransferTask or alternatively, you can implement the following steps:
-            // 1. allocate staging buffer
-            // 2. copy to staging buffer
-            // 3. transfer from staging buffer to device local buffer - use CopyAndReleaseBuffer
+                // you can use dynamic data updates provided by vsg::TransferTask or alternatively, you can implement the following steps:
+                // 1. allocate staging buffer
+                // 2. copy to staging buffer
+                // 3. transfer from staging buffer to device local buffer - use CopyAndReleaseBuffer
+            }
             return;
         }