LG1PclAmbienceStencil: allocate stencils in constructor

stimBuffApis/livoxGen1/pcloudAmbienceStimulusBuffer.h

@@ -3,8 +3,11 @@
 
 #include <memory>
 #include <cstdint>
+#include <list>
+#include <cstddef>
 #include <user/stimulusBuffer.h>
 #include <user/stagingBuffer.h>
+#include "lg1PcloudAmbienceStencil.h"
 
 namespace smo {
 namespace stim_buff {
@@ -27,13 +30,20 @@ public:
 		const StagingBuffer::IOEngineConstraints& outputEngineConstraints,
 		const SmoCallbacks& callbacks,
 		cl_mem_flags flags,
-		uint32_t ambienceHighVal_)
+		uint32_t ambienceHighVal_,
+		size_t nStencils_, size_t nDgramsPerFrame_)
 	:	StimulusBuffer(
 			parent, deviceAttachmentSpec, histbuffMs,
 			inputEngineConstraints, outputEngineConstraints,
 			callbacks, flags),
-	ambienceHighVal(ambienceHighVal_)
-	{}
+	ambienceHighVal(ambienceHighVal_),
+	nStencils(nStencils_)
+	{
+		// Construct stencils and add to list (FIFO behavior)
+		for (size_t i = 0; i < nStencils; ++i) {
+			stencils.emplace_back(nDgramsPerFrame_);
+		}
+	}
 
 	~PcloudAmbienceStimulusBuffer() = default;
 
@@ -45,6 +55,8 @@ public:
 
 public:
 	uint32_t ambienceHighVal;
+	size_t nStencils;
+	std::list<LG1PcloudAmbienceStencil> stencils;
 };
 
 } // namespace stim_buff