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>

1 files changed, 70 insertions, 0 deletions

diff --git a/arm_compute/core/NEON/kernels/NEWinogradLayerKernel.h b/arm_compute/core/NEON/kernels/NEWinogradLayerKernel.h
new file mode 100644
index 0000000000..1e7ca64b8c
--- /dev/null
+++ b/arm_compute/core/NEON/kernels/NEWinogradLayerKernel.h
@@ -0,0 +1,70 @@
+/*
+ * 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_NEGEMMWINOGRADLAYERKERNEL_H__
+#define __ARM_COMPUTE_NEGEMMWINOGRADLAYERKERNEL_H__
+
+#include "arm_compute/core/NEON/INEKernel.h"
+
+#include "arm_compute/core/NEON/kernels/winograd/winograd_shim_nchw.hpp"
+
+namespace arm_compute
+{
+class ITensor;
+
+class NEWinogradLayerKernel : public INEKernel
+{
+public:
+    using Winograd3x3F32 = winograd_shim_nchw::Winograd2x2_3x3GEMM<float, float>;
+
+    /** Constructor */
+    NEWinogradLayerKernel();
+
+    /** Prevent instances of this class from being copied (As this class contains pointers) */
+    NEWinogradLayerKernel(const NEWinogradLayerKernel &) = delete;
+    /** Prevent instances of this class from being copied (As this class contains pointers) */
+    NEWinogradLayerKernel &operator=(const NEWinogradLayerKernel &) = delete;
+    /** Allow instances of this class to be moved */
+    NEWinogradLayerKernel(NEWinogradLayerKernel &&) = default;
+    /** Allow instances of this class to be moved */
+    NEWinogradLayerKernel &operator=(NEWinogradLayerKernel &&) = default;
+
+    virtual ~NEWinogradLayerKernel() = default;
+
+    /** Initialise the kernel
+     *
+     * @param[in,out] output    Output tensor to store the result of matrix multiplication.
+     * @param[in]     convolver A pointer to the winograd convolver, this object must have been configured and is ready to execute 16 GEMMS .
+     */
+    void configure(ITensor *output, Winograd3x3F32 *convolver);
+
+    // Inherited methods overridden:
+    void run(const Window &window, const ThreadInfo &info) override;
+
+protected:
+    Winograd3x3F32 *_convolver;
+    ITensor        *_output;
+};
+
+} // namespace arm_compute
+#endif /*__ARM_COMPUTE_NEGEMMWINOGRADLAYERKERNEL_H__*/