Add tensor related data structures for the new API

Adds the following:
 - TensorDescriptor: which is responsible for holding the information
 needed to represent a tensor (e.g. shape, dimensions, etc)
 - Tensor: an aggreate object of a descriptor and a backing memory
 - TensorPack: A map of tensor that can be passed to operators as
 inputs/outputs

Signed-off-by: Georgios Pinitas <georgios.pinitas@arm.com>
Change-Id: I02734ac6ad85700d91d6e73217b4637adbf5d177
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/5260
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>

1 files changed, 66 insertions, 0 deletions

diff --git a/src/gpu/cl/ClTensor.h b/src/gpu/cl/ClTensor.h
new file mode 100644
index 0000000000..4188f622d6
--- /dev/null
+++ b/src/gpu/cl/ClTensor.h
@@ -0,0 +1,66 @@
+/*
+ * Copyright (c) 2021 Arm Limited.
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#ifndef SRC_GPU_CLTENSOR_H
+#define SRC_GPU_CLTENSOR_H
+
+#include "src/common/ITensor.h"
+
+#include "arm_compute/runtime/CL/CLTensor.h"
+
+namespace arm_compute
+{
+namespace gpu
+{
+namespace opencl
+{
+/** OpenCL tensor implementation class */
+class ClTensor final : public ITensorV2
+{
+public:
+    /**  Construct a new OpenCL Tensor object
+     *
+     * @param[in] ctx  Context to be used
+     * @param[in] desc Tensor descriptor
+     */
+    ClTensor(IContext *ctx, const AclTensorDescriptor &desc);
+    /** Allocates tensor
+     *
+     * @return StatusCode A status code
+     */
+    StatusCode allocate();
+
+    // Inherrited functions overriden
+    void                 *map() override;
+    StatusCode            unmap() override;
+    arm_compute::ITensor *tensor() override;
+    StatusCode import(void *handle, ImportMemoryType type) override;
+
+private:
+    std::unique_ptr<CLTensor> _legacy_tensor;
+};
+} // namespace opencl
+} // namespace gpu
+} // namespace arm_compute
+
+#endif /* SRC_GPU_CLTENSOR_H */
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