StagingBuffer: add OpenCL buff handles to StimFrames

include/user/spMcRingBuffer.h

@@ -10,6 +10,9 @@
 #include <user/stimulusFrame.h>
 #include <user/frameAssemblyDesc.h>
 #include <user/sequenceLock.h>
+#include <user/senseApiDesc.h>
+#define CL_TARGET_OPENCL_VERSION 120
+#include <CL/cl.h>
 
 namespace smo {
 namespace stim_buff {
@@ -31,7 +34,9 @@ public:
 	 * each initialized with a SlotDesc from the FrameAssemblyDesc.
 	 */
 	explicit SpMcRingBuffer(
-		const std::shared_ptr<FrameAssemblyDesc> &frameAssemblyDesc_)
+		const std::shared_ptr<FrameAssemblyDesc> &frameAssemblyDesc_,
+		const SmoCallbacks& callbacks,
+		cl_mem_flags flags)
 	:
 	nBuffers(frameAssemblyDesc_ ? frameAssemblyDesc_->slots.size() : 0),
 	frameAssemblyDesc(frameAssemblyDesc_),
@@ -54,7 +59,8 @@ public:
 		for (size_t i = 0; i < nBuffers; ++i)
 		{
 			slots[i].~StimulusFrame();  // Destroy default-constructed object
-			new (&slots[i]) StimulusFrame(frameAssemblyDesc->slots[i]);
+			new (&slots[i]) StimulusFrame(
+				frameAssemblyDesc->slots[i], callbacks, flags);
 		}
 	}
 

include/user/stimulusBuffer.h

@@ -7,8 +7,11 @@
 #include <user/spMcRingBuffer.h>
 #include <user/stagingBuffer.h>
 #include <user/frameAssemblyDesc.h>
+#include <user/senseApiDesc.h>
 #include "stimulusFrame.h"
 #include "deviceAttachmentSpec.h"
+#define CL_TARGET_OPENCL_VERSION 120
+#include <CL/cl.h>
 
 namespace smo {
 namespace stim_buff {
@@ -31,7 +34,9 @@ public:
 			&deviceAttachmentSpec,
 		int histbuffMs,
 		const StagingBuffer::IOEngineConstraints& inputEngineConstraints,
-		const StagingBuffer::IOEngineConstraints& outputEngineConstraints)
+		const StagingBuffer::IOEngineConstraints& outputEngineConstraints,
+		const SmoCallbacks& callbacks,
+		cl_mem_flags flags)
 	: parent(parent),
 	deviceAttachmentSpec(deviceAttachmentSpec),
 	histbuffMs(histbuffMs),
@@ -39,7 +44,9 @@ public:
 		inputEngineConstraints,
 		outputEngineConstraints,
 		static_cast<size_t>(histbuffMs / CONFIG_STIMBUFF_FRAME_PERIOD_MS)),
-	ringBuffer(static_cast<std::shared_ptr<FrameAssemblyDesc>>(stagingBuffer))
+	ringBuffer(
+		static_cast<std::shared_ptr<FrameAssemblyDesc>>(stagingBuffer),
+		callbacks, flags)
 	{}
 
 	virtual ~StimulusBuffer() = default;

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