Add DepthToSpace layer node to Graph API
Change-Id: I5db780fb9c94160130e9986bbfc739124bfa8041
Signed-off-by: thecha01 <theo.charalambous@arm.com>
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/3914
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Michele Di Giorgio <michele.digiorgio@arm.com>
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
diff --git a/src/graph/nodes/DepthToSpaceLayerNode.cpp b/src/graph/nodes/DepthToSpaceLayerNode.cpp
new file mode 100644
index 0000000..785e850
--- /dev/null
+++ b/src/graph/nodes/DepthToSpaceLayerNode.cpp
@@ -0,0 +1,96 @@
+/*
+ * Copyright (c) 2020 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.
+ */
+#include "arm_compute/graph/nodes/DepthToSpaceLayerNode.h"
+
+#include "arm_compute/core/Utils.h"
+#include "arm_compute/core/utils/misc/ShapeCalculator.h"
+#include "arm_compute/graph/Graph.h"
+#include "arm_compute/graph/INodeVisitor.h"
+
+namespace arm_compute
+{
+namespace graph
+{
+DepthToSpaceLayerNode::DepthToSpaceLayerNode(int block_shape)
+ : _block_shape(block_shape)
+{
+ _input_edges.resize(1, EmptyEdgeID);
+ _outputs.resize(1, NullTensorID);
+}
+
+int DepthToSpaceLayerNode::block_shape() const
+{
+ return _block_shape;
+}
+
+TensorDescriptor DepthToSpaceLayerNode::compute_output_descriptor(const TensorDescriptor &input_descriptor, int block_shape)
+{
+ using namespace arm_compute::helpers::tensor_transform;
+
+ TensorShape input_shape = input_descriptor.shape;
+ DataLayout data_layout = input_descriptor.layout;
+
+ // Set descriptor shape
+ TensorDescriptor output_descriptor = input_descriptor;
+ output_descriptor.shape = compute_depth_to_space_output_shape(input_shape, data_layout, block_shape);
+
+ return output_descriptor;
+}
+
+bool DepthToSpaceLayerNode::forward_descriptors()
+{
+ if((input_id(0) != NullTensorID) && (output_id(0) != NullTensorID))
+ {
+ Tensor *dst = output(0);
+ ARM_COMPUTE_ERROR_ON(dst == nullptr);
+ dst->desc() = configure_output(0);
+ return true;
+ }
+ return false;
+}
+
+TensorDescriptor DepthToSpaceLayerNode::configure_output(size_t idx) const
+{
+ ARM_COMPUTE_UNUSED(idx);
+ ARM_COMPUTE_ERROR_ON(idx >= _outputs.size());
+
+ const Tensor *src = input(0);
+ ARM_COMPUTE_ERROR_ON(src == nullptr);
+
+ TensorDescriptor output_desc = src->desc();
+
+ return compute_output_descriptor(output_desc, _block_shape);
+}
+
+NodeType DepthToSpaceLayerNode::type() const
+{
+ return NodeType::DepthToSpaceLayer;
+}
+
+void DepthToSpaceLayerNode::accept(INodeVisitor &v)
+{
+ v.visit(*this);
+}
+} // namespace graph
+} // namespace arm_compute