IVGCVSW-5420 'Add CL support for CAST'

Signed-off-by: Sadik Armagan <sadik.armagan@arm.com>
Change-Id: I1bbf1f2edf7282cb69b99e22de1b8a2fe6e443c2

1 files changed, 47 insertions, 0 deletions

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