From f40d6d41b58a086273513d1b386725a7ae9c5503 Mon Sep 17 00:00:00 2001
From: Sadik Armagan <sadik.armagan@arm.com>
Date: Thu, 22 Apr 2021 09:12:11 +0100
Subject: IVGCVSW-5420 'Add CL support for CAST'

Signed-off-by: Sadik Armagan <sadik.armagan@arm.com>
Change-Id: I1bbf1f2edf7282cb69b99e22de1b8a2fe6e443c2
---
 src/backends/cl/workloads/CMakeLists.txt     |  4 ++-
 src/backends/cl/workloads/ClCastWorkload.cpp | 47 ++++++++++++++++++++++++++++
 src/backends/cl/workloads/ClCastWorkload.hpp | 30 ++++++++++++++++++
 src/backends/cl/workloads/ClWorkloads.hpp    |  1 +
 4 files changed, 81 insertions(+), 1 deletion(-)
 create mode 100644 src/backends/cl/workloads/ClCastWorkload.cpp
 create mode 100644 src/backends/cl/workloads/ClCastWorkload.hpp

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

diff --git a/src/backends/cl/workloads/CMakeLists.txt b/src/backends/cl/workloads/CMakeLists.txt
index 04821bf4bb..9f1a02f9bf 100644
--- a/src/backends/cl/workloads/CMakeLists.txt
+++ b/src/backends/cl/workloads/CMakeLists.txt
@@ -1,5 +1,5 @@
 #
-# Copyright © 2017 Arm Ltd anc Contributors. All rights reserved.
+# Copyright © 2017 Arm Ltd and Contributors. All rights reserved.
 # SPDX-License-Identifier: MIT
 #
 
@@ -16,6 +16,8 @@ list(APPEND armnnClBackendWorkloads_sources
     ClBatchNormalizationFloatWorkload.hpp
     ClBatchToSpaceNdWorkload.cpp
     ClBatchToSpaceNdWorkload.hpp
+    ClCastWorkload.cpp
+    ClCastWorkload.hpp
     ClComparisonWorkload.cpp
     ClComparisonWorkload.hpp
     ClConcatWorkload.cpp
diff --git a/src/backends/cl/workloads/ClCastWorkload.cpp b/src/backends/cl/workloads/ClCastWorkload.cpp
new file mode 100644
index 0000000000..e995e42386
--- /dev/null
+++ b/src/backends/cl/workloads/ClCastWorkload.cpp
@@ -0,0 +1,47 @@
+//
+// Copyright © 2021 Arm Ltd and Contributors. All rights reserved.
+// SPDX-License-Identifier: MIT
+//
+
+#include "ClCastWorkload.hpp"
+#include "ClWorkloadUtils.hpp"
+
+#include <armnn/utility/PolymorphicDowncast.hpp>
+
+#include <aclCommon/ArmComputeTensorUtils.hpp>
+
+#include <cl/ClTensorHandle.hpp>
+
+namespace armnn
+{
+
+static constexpr arm_compute::ConvertPolicy g_AclConvertPolicy = arm_compute::ConvertPolicy::SATURATE;
+
+arm_compute::Status ClCastValidate(const TensorInfo& input, const TensorInfo& output)
+{
+    const arm_compute::TensorInfo aclInput  = armcomputetensorutils::BuildArmComputeTensorInfo(input);
+    const arm_compute::TensorInfo aclOutput = armcomputetensorutils::BuildArmComputeTensorInfo(output);
+
+    return arm_compute::CLCast::validate(&aclInput, &aclOutput, g_AclConvertPolicy);
+}
+
+ClCastWorkload::ClCastWorkload(const CastQueueDescriptor& descriptor,
+                               const WorkloadInfo& info,
+                               const arm_compute::CLCompileContext& clCompileContext)
+    : BaseWorkload<CastQueueDescriptor>(descriptor, info)
+{
+    m_Data.ValidateInputsOutputs("ClCastWorkload", 1, 1);
+
+    arm_compute::ICLTensor& input  = PolymorphicDowncast<ClTensorHandle*>(m_Data.m_Inputs[0])->GetTensor();
+    arm_compute::ICLTensor& output = PolymorphicDowncast<ClTensorHandle*>(m_Data.m_Outputs[0])->GetTensor();
+
+    m_CastLayer.configure(clCompileContext, &input, &output, g_AclConvertPolicy);
+}
+
+void ClCastWorkload::Execute() const
+{
+    ARMNN_SCOPED_PROFILING_EVENT_CL("ClCastWorkload_Execute");
+    RunClFunction(m_CastLayer, CHECK_LOCATION());
+}
+
+} // namespace armnn
diff --git a/src/backends/cl/workloads/ClCastWorkload.hpp b/src/backends/cl/workloads/ClCastWorkload.hpp
new file mode 100644
index 0000000000..ef4c7672f4
--- /dev/null
+++ b/src/backends/cl/workloads/ClCastWorkload.hpp
@@ -0,0 +1,30 @@
+//
+// Copyright © 2021 Arm Ltd and Contributors. All rights reserved.
+// SPDX-License-Identifier: MIT
+//
+
+#pragma once
+
+#include <backendsCommon/Workload.hpp>
+
+#include <arm_compute/core/Error.h>
+#include <arm_compute/runtime/CL/functions/CLCast.h>
+
+namespace armnn
+{
+
+arm_compute::Status ClCastValidate(const TensorInfo& input, const TensorInfo& output);
+
+class ClCastWorkload : public BaseWorkload<CastQueueDescriptor>
+{
+public:
+    ClCastWorkload(const CastQueueDescriptor& descriptor,
+                   const WorkloadInfo& info,
+                   const arm_compute::CLCompileContext& clCompileContext);
+    virtual void Execute() const override;
+
+private:
+    mutable arm_compute::CLCast m_CastLayer;
+};
+
+} // namespace armnn
diff --git a/src/backends/cl/workloads/ClWorkloads.hpp b/src/backends/cl/workloads/ClWorkloads.hpp
index 0ae7f4ec22..5488fcdf1a 100644
--- a/src/backends/cl/workloads/ClWorkloads.hpp
+++ b/src/backends/cl/workloads/ClWorkloads.hpp
@@ -12,6 +12,7 @@
 #include "ClConstantWorkload.hpp"
 #include "ClBatchNormalizationFloatWorkload.hpp"
 #include "ClBatchToSpaceNdWorkload.hpp"
+#include "ClCastWorkload.hpp"
 #include "ClConvolution2dWorkload.hpp"
 #include "ClDepthToSpaceWorkload.hpp"
 #include "ClDepthwiseConvolutionWorkload.hpp"
-- 
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