COMPMID-687: Winograd layer.
Change-Id: Ica682d08e851491bf4a26b8d17908c014844055e
Reviewed-on: https://eu-gerrit-1.euhpc.arm.com/110990
Reviewed-by: Anthony Barbier <anthony.barbier@arm.com>
Tested-by: BSG Visual Compute Jenkins server to access repositories on http://mpd-gerrit.cambridge.arm.com <bsgcomp@arm.com>
diff --git a/arm_compute/runtime/NEON/functions/NEWinogradLayer.h b/arm_compute/runtime/NEON/functions/NEWinogradLayer.h
new file mode 100644
index 0000000..7dca457
--- /dev/null
+++ b/arm_compute/runtime/NEON/functions/NEWinogradLayer.h
@@ -0,0 +1,84 @@
+/*
+ * Copyright (c) 2017 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 __ARM_COMPUTE_NEWINOGRADLAYER_H__
+#define __ARM_COMPUTE_NEWINOGRADLAYER_H__
+
+#include "arm_compute/runtime/IFunction.h"
+
+#include "arm_compute/core/NEON/kernels/NEWinogradLayerKernel.h"
+#include "arm_compute/core/Types.h"
+#include "arm_compute/runtime/MemoryGroup.h"
+#include "arm_compute/runtime/Tensor.h"
+
+#include <memory>
+
+namespace arm_compute
+{
+class ITensor;
+/** Basic function to simulate a convolution layer. This function calls the following NEON kernels:
+ */
+class NEWinogradLayer : public IFunction
+{
+public:
+ /** Constructor */
+ NEWinogradLayer(std::shared_ptr<IMemoryManager> memory_manager = nullptr);
+
+ /** Set the input and output tensors.
+ *
+ * @param[in] input Source tensor. 3 lower dimensions represent a single input [width, height, IFM],
+ * while every optional dimension from 4 and above represent a batch of inputs.
+ * Data types supported: F32.
+ * @param[in] weights Weights tensor. Weights are 4D tensor with dimensions [kernel_x, kernel_y, IFM, OFM]. Data type supported: Same as @p input.
+ * Currently only 3x3 kernels are supported.
+ * @param[in] biases Not supported, biases will be ignored.
+ * @param[out] output Destination tensor. 3 lower dimensions represent a single output [width, height, OFM], while the rest represent batch of outputs.
+ * Data types supported: Same as @p input.
+ * @param[in] conv_info Contains padding and stride information described in @ref PadStrideInfo. Currently only unit strides are supported.
+ */
+ void configure(const ITensor *input, const ITensor *weights, const ITensor *biases, ITensor *output, const PadStrideInfo &conv_info);
+
+ // Inherited methods overridden:
+ void run() override;
+
+ /** Prevent instances of this class from being copied (As this class contains pointers) */
+ NEWinogradLayer(const NEWinogradLayer &) = delete;
+ /** Prevent instances of this class from being copied (As this class contains pointers) */
+ NEWinogradLayer &operator=(const NEWinogradLayer &) = delete;
+
+private:
+ using Winograd3x3F32 = NEWinogradLayerKernel::Winograd3x3F32;
+
+ MemoryGroup _memory_group;
+ NEWinogradLayerKernel _winograd_kernel;
+ Tensor _weights_workspace;
+ Tensor _workspace;
+ Tensor _kernel_storage;
+ const ITensor *_input;
+ const ITensor *_weights;
+ ITensor *_output;
+ bool _reshaped_kernel;
+ std::unique_ptr<Winograd3x3F32> _conv;
+};
+}
+#endif /* __ARM_COMPUTE_NEWINOGRADLAYER_H__ */