COMPMID-1723: CL: Implement Reverse

Change-Id: Id0d4a07af24e2331161996083b0c1bab072bd405
Reviewed-on: https://review.mlplatform.org/322
Reviewed-by: Georgios Pinitas <georgios.pinitas@arm.com>
Tested-by: Arm Jenkins <bsgcomp@arm.com>

3 files changed, 80 insertions, 3 deletions

diff --git a/arm_compute/core/CL/CLKernels.h b/arm_compute/core/CL/CLKernels.h
index 0fe1e04ccd..201679347a 100644
--- a/arm_compute/core/CL/CLKernels.h
+++ b/arm_compute/core/CL/CLKernels.h
@@ -113,6 +113,7 @@
 #include "arm_compute/core/CL/kernels/CLRemapKernel.h"
 #include "arm_compute/core/CL/kernels/CLReorgLayerKernel.h"
 #include "arm_compute/core/CL/kernels/CLReshapeLayerKernel.h"
+#include "arm_compute/core/CL/kernels/CLReverseKernel.h"
 #include "arm_compute/core/CL/kernels/CLScaleKernel.h"
 #include "arm_compute/core/CL/kernels/CLScharr3x3Kernel.h"
 #include "arm_compute/core/CL/kernels/CLSelectKernel.h"
diff --git a/arm_compute/core/CL/kernels/CLChannelShuffleLayerKernel.h b/arm_compute/core/CL/kernels/CLChannelShuffleLayerKernel.h
index f7bd205ec7..7ae77580d2 100644
--- a/arm_compute/core/CL/kernels/CLChannelShuffleLayerKernel.h
+++ b/arm_compute/core/CL/kernels/CLChannelShuffleLayerKernel.h
@@ -55,9 +55,9 @@ public:
     void configure(const ICLTensor *input, ICLTensor *output, unsigned int num_groups);
     /** Static function to check if given info will lead to a valid configuration of @ref CLChannelShuffleLayerKernel
      *
-     * @param[in]  input      Input tensor. Data types supported: U8/S8/QASYMM8/U16/S16/F16/U32/S32/F32
-     * @param[out] output     Output tensor. Data type supported: Same as @p input
-     * @param[in]  num_groups Number of groups. Must be greater than 1 and the number of channels of the tensors must be a multiple of the number of groups.
+     * @param[in] input      Input tensor info. Data types supported: U8/S8/QASYMM8/U16/S16/F16/U32/S32/F32
+     * @param[in] output     Output tensor info. Data type supported: Same as @p input
+     * @param[in] num_groups Number of groups. Must be greater than 1 and the number of channels of the tensors must be a multiple of the number of groups.
      *
      * @return a status
      */
diff --git a/arm_compute/core/CL/kernels/CLReverseKernel.h b/arm_compute/core/CL/kernels/CLReverseKernel.h
new file mode 100644
index 0000000000..e11fbf53b1
--- /dev/null
+++ b/arm_compute/core/CL/kernels/CLReverseKernel.h
@@ -0,0 +1,76 @@
+/*
+ * Copyright (c) 2018 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_CLREVERSEKERNEL_H__
+#define __ARM_COMPUTE_CLREVERSEKERNEL_H__
+
+#include "arm_compute/core/CL/ICLKernel.h"
+
+namespace arm_compute
+{
+class ICLTensor;
+
+/** Interface for the reverse kernel */
+class CLReverseKernel : public ICLKernel
+{
+public:
+    /** Default constructor */
+    CLReverseKernel();
+    /** Prevent instances of this class from being copied (As this class contains pointers) */
+    CLReverseKernel(const CLReverseKernel &) = delete;
+    /** Prevent instances of this class from being copied (As this class contains pointers) */
+    CLReverseKernel &operator=(const CLReverseKernel &) = delete;
+    /** Allow instances of this class to be moved */
+    CLReverseKernel(CLReverseKernel &&) = default;
+    /** Allow instances of this class to be moved */
+    CLReverseKernel &operator=(CLReverseKernel &&) = default;
+    /** Default destructor */
+    ~CLReverseKernel() = default;
+    /** Initialise the kernel's inputis and output
+     *
+     * @param[in]  input  Input tensor. Data types supported: U8/S8/QASYMM8/U16/S16/F16/U32/S32/F32
+     * @param[out] output Output tensor. Data type supported: Same as @p input
+     * @param[in]  axis   Axis tensor. Contains the indices of the dimensions to reverse. Data type supported: U32
+     */
+    void configure(const ICLTensor *input, ICLTensor *output, const ICLTensor *axis);
+
+    /** Static function to check if given info will lead to a valid configuration of @ref CLReverseKernel
+     *
+     * @param[in] input  Input tensor info. Data types supported: U8/S8/QASYMM8/U16/S16/F16/U32/S32/F32
+     * @param[in] output Output tensor info. Data type supported: Same as @p input
+     * @param[in] axis   Axis tensor info. Contains the indices of the dimensions to reverse. Data type supported: U32
+     *
+     * @return a status
+     */
+    static Status validate(const ITensorInfo *input, const ITensorInfo *output, const ITensorInfo *axis);
+
+    // Inherited methods overridden:
+    void run(const Window &window, cl::CommandQueue &queue) override;
+
+public:
+    const ICLTensor *_input;
+    ICLTensor       *_output;
+    const ICLTensor *_axis;
+};
+} // namespace arm_compute
+#endif /*__ARM_COMPUTE_CLREVERSEKERNEL_H__ */