StagingBuffer: add OpenCL buff handles to StimFrames

include/user/stimulusFrame.h

@@ -2,8 +2,13 @@
 #define _ATTACHMENT_SUPPORT_STIMULUS_FRAME_H
 
 #include <cstdint>
+#include <memory>
 #include <user/frameAssemblyDesc.h>
 #include <user/sequenceLock.h>
+#include <user/compute.h>
+#include <user/senseApiDesc.h>
+#define CL_TARGET_OPENCL_VERSION 120
+#include <CL/cl.h>
 
 namespace smo {
 namespace stim_buff {
@@ -69,9 +74,30 @@ public:
 	 */
 	StimulusFrame() = default;
 
-	StimulusFrame(const FrameAssemblyDesc::SlotDesc& slotDesc_)
+	StimulusFrame(
+		const FrameAssemblyDesc::SlotDesc& slotDesc_,
+		const SmoCallbacks& callbacks,
+		cl_mem_flags flags)
 	: slotDesc(slotDesc_)
-	{}
+	{
+		if (!callbacks.ComputeManager_createUseHostPtrBuffer)
+		{
+			throw std::runtime_error(std::string(__func__)
+				+ ": StimulusFrame: ComputeManager_createUseHostPtrBuffer "
+				"callback is null");
+		}
+
+		clBuffer = callbacks.ComputeManager_createUseHostPtrBuffer(
+			slotDesc.vaddr, slotDesc.nBytes, flags);
+
+		if (!clBuffer)
+		{
+			throw std::runtime_error(std::string(__func__)
+				+ ": StimulusFrame: failed to create clBuffer");
+		}
+
+		std::cout << __func__ << ": StimulusFrame: created clBuffer with size " << slotDesc.nBytes << " bytes @ " << (const void*)slotDesc.vaddr << std::endl;
+	}
 
 	~StimulusFrame() = default;
 
@@ -85,6 +111,7 @@ public:
 	SequenceLock lock;
 	SimultaneityStamp simultaneityStamp;
 	FrameAssemblyDesc::SlotDesc slotDesc;
+	std::shared_ptr<smo::compute::ClBuffer> clBuffer;
 };
 
 } // namespace stim_buff