From 5f400d6d23b463ca810180b45dd84c3f99b24690 Mon Sep 17 00:00:00 2001
From: Derek Lamberti <derek.lamberti@arm.com>
Date: Mon, 25 Mar 2019 15:41:58 +0000
Subject: IVGCVSW-2871 Ref QuantizeLayer workload

Change-Id: If048b2a053c542b31ae344fe0af04d9b4f40eb6d
Signed-off-by: Derek Lamberti <derek.lamberti@arm.com>
---
 src/backends/reference/workloads/CMakeLists.txt    |  2 +
 .../reference/workloads/RefQuantizeWorkload.cpp    | 66 ++++++++++++++++++++++
 .../reference/workloads/RefQuantizeWorkload.hpp    | 26 +++++++++
 src/backends/reference/workloads/RefWorkloads.hpp  |  2 +
 4 files changed, 96 insertions(+)
 create mode 100644 src/backends/reference/workloads/RefQuantizeWorkload.cpp
 create mode 100644 src/backends/reference/workloads/RefQuantizeWorkload.hpp

(limited to 'src/backends/reference/workloads')

diff --git a/src/backends/reference/workloads/CMakeLists.txt b/src/backends/reference/workloads/CMakeLists.txt
index c4fc202250..4f5fbb554e 100644
--- a/src/backends/reference/workloads/CMakeLists.txt
+++ b/src/backends/reference/workloads/CMakeLists.txt
@@ -97,6 +97,8 @@ list(APPEND armnnRefBackendWorkloads_sources
     RefPooling2dFloat32Workload.hpp
     RefPooling2dUint8Workload.cpp
     RefPooling2dUint8Workload.hpp
+    RefQuantizeWorkload.cpp
+    RefQuantizeWorkload.hpp
     RefReshapeFloat32Workload.cpp
     RefReshapeFloat32Workload.hpp
     RefReshapeUint8Workload.cpp
diff --git a/src/backends/reference/workloads/RefQuantizeWorkload.cpp b/src/backends/reference/workloads/RefQuantizeWorkload.cpp
new file mode 100644
index 0000000000..b7ace32e14
--- /dev/null
+++ b/src/backends/reference/workloads/RefQuantizeWorkload.cpp
@@ -0,0 +1,66 @@
+//
+// Copyright © 2017 Arm Ltd. All rights reserved.
+// SPDX-License-Identifier: MIT
+//
+
+#include "RefQuantizeWorkload.hpp"
+
+#include <armnn/TypesUtils.hpp>
+
+
+namespace armnn
+{
+
+namespace
+{
+
+template<typename T>
+void QuantizeImpl(const void *input, void *output, size_t numValues, float scale, int offset)
+{
+    auto in = static_cast<const float *>(input);
+    auto out = static_cast<T *>(output);
+    for (size_t i = 0; i < numValues; i++, in++, out++)
+    {
+        *out = armnn::Quantize<T>(*in, scale, offset);
+    }
+}
+
+} //namespace
+
+RefQuantizeWorkload::RefQuantizeWorkload(const QuantizeQueueDescriptor& descriptor, const WorkloadInfo &info)
+    : BaseWorkload(descriptor, info)
+    , m_NumElements(info.m_InputTensorInfos[0].GetNumElements())
+    , m_TargetType(info.m_OutputTensorInfos[0].GetDataType())
+    , m_Scale(info.m_OutputTensorInfos[0].GetQuantizationScale())
+    , m_Offset(info.m_OutputTensorInfos[0].GetQuantizationOffset())
+{
+}
+
+void RefQuantizeWorkload::Execute() const
+{
+    const void* input = m_Data.m_Inputs[0]->Map(true);
+    void* output =  m_Data.m_Outputs[0]->Map(true);
+
+    switch(m_TargetType)
+    {
+        case DataType::QuantisedAsymm8:
+        {
+            QuantizeImpl<uint8_t>(input, output, m_NumElements, m_Scale, m_Offset);
+            break;
+        }
+        case DataType::QuantisedSymm16:
+        {
+            QuantizeImpl<int16_t>(input, output, m_NumElements, m_Scale, 0);
+            break;
+        }
+        default:
+        {
+            BOOST_ASSERT_MSG(false, "RefQuantizeWorkload: Non quantized output type encountered");
+        }
+    }
+
+    m_Data.m_Inputs[0]->Unmap();
+    m_Data.m_Outputs[0]->Unmap();
+}
+
+} //namespace armnn
\ No newline at end of file
diff --git a/src/backends/reference/workloads/RefQuantizeWorkload.hpp b/src/backends/reference/workloads/RefQuantizeWorkload.hpp
new file mode 100644
index 0000000000..6a43b8471d
--- /dev/null
+++ b/src/backends/reference/workloads/RefQuantizeWorkload.hpp
@@ -0,0 +1,26 @@
+//
+// Copyright © 2017 Arm Ltd. All rights reserved.
+// SPDX-License-Identifier: MIT
+//
+
+#pragma once
+
+#include <backendsCommon/Workload.hpp>
+#include <backendsCommon/WorkloadData.hpp>
+
+namespace armnn {
+
+class RefQuantizeWorkload : public BaseWorkload<QuantizeQueueDescriptor>
+{
+public:
+    RefQuantizeWorkload(const QuantizeQueueDescriptor& descriptor, const WorkloadInfo &info);
+    void Execute() const override;
+
+private:
+    size_t m_NumElements;
+    armnn::DataType m_TargetType;
+    float m_Scale;
+    int m_Offset;
+};
+
+} //namespace armnn
\ No newline at end of file
diff --git a/src/backends/reference/workloads/RefWorkloads.hpp b/src/backends/reference/workloads/RefWorkloads.hpp
index 7d2e813f6b..77aa56fcc6 100644
--- a/src/backends/reference/workloads/RefWorkloads.hpp
+++ b/src/backends/reference/workloads/RefWorkloads.hpp
@@ -64,3 +64,5 @@
 #include "RefRsqrtFloat32Workload.hpp"
 #include "RefComparisonWorkload.hpp"
 #include "RefDequantizeWorkload.hpp"
+
+#include "RefQuantizeWorkload.hpp"
\ No newline at end of file
-- 
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