COMPMID-2308: NEConvolutionLayer: support QUANT8_SYMM_PER_CHANNEL filters

Change-Id: Ic1bf5f0d21ccd525f84213a360f7e199d7f50577
Signed-off-by: Georgios Pinitas <georgios.pinitas@arm.com>
Reviewed-on: https://review.mlplatform.org/c/2177
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/arm_compute/core/NEON/kernels/NEConvertQuantizedSignednessKernel.h b/arm_compute/core/NEON/kernels/NEConvertQuantizedSignednessKernel.h
new file mode 100644
index 0000000..d3f0907
--- /dev/null
+++ b/arm_compute/core/NEON/kernels/NEConvertQuantizedSignednessKernel.h
@@ -0,0 +1,76 @@
+/*
+ * Copyright (c) 2019 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_NECONVERTQUANTIZEDSIGNEDNESSKERNEL_H__
+#define __ARM_COMPUTE_NECONVERTQUANTIZEDSIGNEDNESSKERNEL_H__
+
+#include "arm_compute/core/NEON/INEKernel.h"
+#include "arm_compute/core/Types.h"
+
+namespace arm_compute
+{
+// Forward declarations
+class ITensor;
+
+/** NEON kernel to convert asymmetric signed to asymmetric signed and vice-versa */
+class NEConvertQuantizedSignednessKernel : public INEKernel
+{
+public:
+    const char *name() const override
+    {
+        return "NEConvertQuantizedSignednessKernel";
+    }
+    /** Default constructor */
+    NEConvertQuantizedSignednessKernel();
+    /** Prevent instances of this class from being copied (As this class contains pointers). */
+    NEConvertQuantizedSignednessKernel(const NEConvertQuantizedSignednessKernel &) = delete;
+    /** Prevent instances of this class from being copied (As this class contains pointers). */
+    NEConvertQuantizedSignednessKernel &operator=(const NEConvertQuantizedSignednessKernel &) = delete;
+    /** Allow instances of this class to be moved */
+    NEConvertQuantizedSignednessKernel(NEConvertQuantizedSignednessKernel &&) = default;
+    /** Allow instances of this class to be moved */
+    NEConvertQuantizedSignednessKernel &operator=(NEConvertQuantizedSignednessKernel &&) = default;
+    /** Initialize the kernel's input, output.
+     *
+     * @param[in]  input  Source tensor. Data types supported: QASYMM8/QASYMM8_SIGNED.
+     * @param[out] output Destination tensor. Data types supported: opposite of @p input.
+     */
+    void configure(const ITensor *input, ITensor *output);
+    /** Static function to check if given info will lead to a valid configuration of @ref NECopyKernel
+     *
+     * @param[in] input  Source tensor. Data types supported: QASYMM8/QASYMM8_SIGNED.
+     * @param[in] output Destination tensor. Data types supported: opposite of @p input.
+     *
+     * @return a status
+     */
+    static Status validate(const ITensorInfo *input, const ITensorInfo *output);
+
+    // Inherited methods overridden:
+    void run(const Window &window, const ThreadInfo &info) override;
+
+private:
+    const ITensor *_input;
+    ITensor       *_output;
+};
+} // namespace arm_compute
+#endif /*__ARM_COMPUTE_NECONVERTQUANTIZEDSIGNEDNESSKERNEL_H__ */
diff --git a/arm_compute/core/NEON/kernels/NEGEMMInterleave4x4Kernel.h b/arm_compute/core/NEON/kernels/NEGEMMInterleave4x4Kernel.h
index 5c0104d..f470126 100644
--- a/arm_compute/core/NEON/kernels/NEGEMMInterleave4x4Kernel.h
+++ b/arm_compute/core/NEON/kernels/NEGEMMInterleave4x4Kernel.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2016-2018 ARM Limited.
+ * Copyright (c) 2016-2019 ARM Limited.
  *
  * SPDX-License-Identifier: MIT
  *
@@ -60,13 +60,13 @@
     NEGEMMInterleave4x4Kernel();
     /** Initialise the kernel's input and output.
      *
-     * @param[in]  input  Input tensor. Data types supported: U8/S8/QASYMM8/U16/S16/F16/U32/S32/F32
+     * @param[in]  input  Input tensor. Data types supported: All
      * @param[out] output Output tensor which stores the interleaved matrix. Data type supported: same as @p input.
      */
     void configure(const ITensor *input, ITensor *output);
     /** Static function to check if given info will lead to a valid configuration of @ref NEGEMMInterleave4x4Kernel
      *
-     * @param[in] input  Input tensor info. Data types supported: U8/S8/QASYMM8/U16/S16/F16/U32/S32/F32
+     * @param[in] input  Input tensor info. Data types supported: All
      * @param[in] output Output tensor info which stores the interleaved matrix. Data type supported: same as @p input.
      *
      * @return a status
@@ -79,7 +79,7 @@
 private:
     /** Common signature for all the transpose functions
      *
-     * @param[in]  input  An input tensor. Data types supported: U8/S8/QASYMM8/U16/S16/F16/U32/S32/F32
+     * @param[in]  input  An input tensor. Data types supported: All
      * @param[out] output The output tensor. Data type supported: same as @p input
      * @param[in]  window Region on which to execute the kernel.
      */
diff --git a/arm_compute/core/NEON/kernels/NEGEMMLowpMatrixMultiplyKernel.h b/arm_compute/core/NEON/kernels/NEGEMMLowpMatrixMultiplyKernel.h
index 354ae21..6467a8d 100644
--- a/arm_compute/core/NEON/kernels/NEGEMMLowpMatrixMultiplyKernel.h
+++ b/arm_compute/core/NEON/kernels/NEGEMMLowpMatrixMultiplyKernel.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2018 ARM Limited.
+ * Copyright (c) 2017-2019 ARM Limited.
  *
  * SPDX-License-Identifier: MIT
  *
@@ -62,15 +62,15 @@
      * The input matrices @p input0 and @p input1 must be the output of the kernels: @ref NEGEMMInterleave4x4Kernel and @ref NEGEMMTranspose1xWKernel. These two
      * kernels change the layout of the original matrices to be more cache-friendly.
      *
-     * @param[in]  input0 Input tensor containing the interleaved Matrix A. Data type supported: QASYMM8
-     * @param[in]  input1 Input tensor containing the transposed1xW Matrix B. Data type supported: same as @p input0
+     * @param[in]  input0 Input tensor containing the interleaved Matrix A. Data type supported: U8/QASYMM8/S8/QASYMM8_SIGNED
+     * @param[in]  input1 Input tensor containing the transposed1xW Matrix B. Data type supported: U8/QASYMM8/S8/QASYMM8_SIGNED/QSYMM8_PER_CHANNEL
      * @param[out] output Output tensor to store the result of matrix multiplication. Data type supported: S32
      */
     void configure(const ITensor *input0, const ITensor *input1, ITensor *output);
     /** Static function to check if given info will lead to a valid configuration of @ref NEGEMMLowpMatrixMultiplyKernel
      *
-     * @param[in] input0 Input tensor info containing the interleaved Matrix A. Data type supported: QASYMM8
-     * @param[in] input1 Input tensor info containing the transposed Matrix B. Data type supported: same as @p input0
+     * @param[in] input0 Input tensor info containing the interleaved Matrix A. Data type supported: U8/QASYMM8/S8/QASYMM8_SIGNED
+     * @param[in] input1 Input tensor info containing the transposed Matrix B. Data type supported: U8/QASYMM8/S8/QASYMM8_SIGNED/QSYMM8_PER_CHANNEL
      * @param[in] output Output tensor info to store the result of matrix multiplication. Data type supported: S32
      *
      * @return a status
diff --git a/arm_compute/core/NEON/kernels/NEGEMMLowpReductionKernel.h b/arm_compute/core/NEON/kernels/NEGEMMLowpReductionKernel.h
index 4eab86d..ce3dddb 100644
--- a/arm_compute/core/NEON/kernels/NEGEMMLowpReductionKernel.h
+++ b/arm_compute/core/NEON/kernels/NEGEMMLowpReductionKernel.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2018 ARM Limited.
+ * Copyright (c) 2017-2019 ARM Limited.
  *
  * SPDX-License-Identifier: MIT
  *
@@ -47,7 +47,7 @@
 
     /** Initialise the kernel's input and output.
      *
-     * @param[in]  input       Input tensor. Data type supported: QASYMM8
+     * @param[in]  input       Input tensor. Data type supported: QASYMM8/QASYMM8_SIGNED
      * @param[out] output      Output row-vector of sums of all the entries in each row/col of input tensor. Data type supported: S32
      * @param[in]  k           Number of matrix A columns (or matrix B rows)
      * @param[in]  is_reshaped True if the input tensor has been reshaped
@@ -75,7 +75,7 @@
     }
     /** Initialise the kernel's input and output.
      *
-     * @param[in]  mtx_a             Input tensor. Data type supported: QASYMM8
+     * @param[in]  mtx_a             Input tensor. Data type supported: QASYMM8/QASYMM8_SIGNED
      * @param[out] vector_sum_row    Output row-vector of sums of all the entries in each row of mtx_a. Data type supported: S32
      * @param[in]  num_mtx_a_cols    Number of matrix A columns
      * @param[in]  is_interleaved4x4 True if the matrix A has been interleaved4x4
@@ -83,7 +83,7 @@
     void configure(const ITensor *mtx_a, ITensor *vector_sum_row, int32_t num_mtx_a_cols, bool is_interleaved4x4) override;
     /** Static function to check if given info will lead to a valid configuration of @ref NEGEMMLowpMatrixAReductionKernel
      *
-     * @param[in] mtx_a             Input tensor. Data type supported: QASYMM8
+     * @param[in] mtx_a             Input tensor. Data type supported: QASYMM8/QASYMM8_SIGNED
      * @param[in] vector_sum_row    Output row-vector of sums of all the entries in each row of mtx_a. Data type supported: S32
      * @param[in] num_mtx_a_cols    Number of matrix A columns
      * @param[in] is_interleaved4x4 True if the matrix A has been interleaved4x4
@@ -94,6 +94,14 @@
 
     // Inherited methods overridden:
     void run(const Window &window, const ThreadInfo &info) override;
+
+private:
+    /** Execution of the reduction kernel specialized on the input type
+     *
+     * @param[in] window Execution window
+     */
+    template <typename T>
+    void run_internal(const Window &window);
 };
 
 /** NEON kernel used to compute the row-vectors of sums of all the entries in each column of Matrix B.
@@ -110,7 +118,7 @@
     }
     /** Initialise the kernel's input and output.
      *
-     * @param[in]  mtx_b            Input tensor. Data type supported: Data type supported: QASYMM8
+     * @param[in]  mtx_b            Input tensor. Data type supported: Data type supported: QASYMM8/QASYMM8_SIGNED
      * @param[out] vector_sum_col   Output row-vector of sums of all the entries in each column of mtx_b. Data type supported: S32
      * @param[in]  num_mtx_b_rows   Number of matrix B rows
      * @param[in]  is_transposed1xW True if the input tensor is transposed 1xW
@@ -118,7 +126,7 @@
     void configure(const ITensor *mtx_b, ITensor *vector_sum_col, int32_t num_mtx_b_rows, bool is_transposed1xW) override;
     /** Static function to check if given info will lead to a valid configuration of @ref NEGEMMLowpMatrixBReductionKernel
      *
-     * @param[in] mtx_b            Input tensor. Data type supported: Data type supported: QASYMM8
+     * @param[in] mtx_b            Input tensor. Data type supported: Data type supported: QASYMM8/QASYMM8_SIGNED
      * @param[in] vector_sum_col   Output row-vector of sums of all the entries in each column of mtx_b. Data type supported: S32
      * @param[in] num_mtx_b_rows   Number of matrix B rows
      * @param[in] is_transposed1xW True if the input tensor is transposed 1xW
@@ -129,6 +137,15 @@
 
     // Inherited methods overridden:
     void run(const Window &window, const ThreadInfo &info) override;
+
+private:
+    /** Execution of the reduction kernel specialized on the input type
+     *
+     * @param[in] window Execution window
+     * @param[in] info   Thread-related information
+     */
+    template <typename T>
+    void run_internal(const Window &window, const ThreadInfo &info);
 };
 } // namespace arm_compute
 
diff --git a/arm_compute/core/NEON/kernels/NEGEMMTranspose1xWKernel.h b/arm_compute/core/NEON/kernels/NEGEMMTranspose1xWKernel.h
index b7fbfcf..54086d1 100644
--- a/arm_compute/core/NEON/kernels/NEGEMMTranspose1xWKernel.h
+++ b/arm_compute/core/NEON/kernels/NEGEMMTranspose1xWKernel.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2016-2018 ARM Limited.
+ * Copyright (c) 2016-2019 ARM Limited.
  *
  * SPDX-License-Identifier: MIT
  *
@@ -74,13 +74,13 @@
     }
     /** Initialise the kernel's input and output.
      *
-     * @param[in]  input  Input tensor. Data types supported: U8/S8/QASYMM8/U16/S16/F16/U32/S32/F32
+     * @param[in]  input  Input tensor. Data types supported: U8/S8/QASYMM8/QSYMM8_PER_CHANNEL/U16/S16/F16/U32/S32/F32
      * @param[out] output Output tensor. Data type supported: same as @p input.
      */
     void configure(const ITensor *input, ITensor *output);
     /** Static function to check if given info will lead to a valid configuration of @ref NEGEMMTranspose1xWKernel
      *
-     * @param[in] input  Input tensor info. Data types supported: U8/S8/QASYMM8/U16/S16/F16/U32/S32/F32
+     * @param[in] input  Input tensor info. Data types supported: U8/S8/QASYMM8/QSYMM8_PER_CHANNEL/U16/S16/F16/U32/S32/F32
      * @param[in] output Output tensor info. Data type supported: same as @p input.
      *
      * @return a status
diff --git a/arm_compute/core/NEON/kernels/NEWeightsReshapeKernel.h b/arm_compute/core/NEON/kernels/NEWeightsReshapeKernel.h
index bba18a8..585c707 100644
--- a/arm_compute/core/NEON/kernels/NEWeightsReshapeKernel.h
+++ b/arm_compute/core/NEON/kernels/NEWeightsReshapeKernel.h
@@ -75,7 +75,7 @@
     /** Set the input and output of the kernel.
      *
      * @param[in]  input  The input tensor to convert. Weights are 4D tensor with dimensions [kernel_x, kernel_y, IFM, OFM] if shared,
-     *                    and 5D tensor with dimensions [kernel_x, kernel_y, IFM, OFM, num_patches] if unshared. Data types supported: QASYMM8/F32
+     *                    and 5D tensor with dimensions [kernel_x, kernel_y, IFM, OFM, num_patches] if unshared. Data types supported: QASYMM8/QSYMM8_PER_CHANNEL/FP16/F32
      * @param[in]  bias   The shared biases tensor to append.  Bias is 1D tensor with dimensions [OFM] if shared and 2D tensor with
      *                    dimensions [OFM, num_patches] if unshared. Data types supported: Same as @p input
      *                    @warning Appending biases to weights reshaped matrix is not supported for quantized asymmetric types.
@@ -85,7 +85,7 @@
     /** Static function to check if given info will lead to a valid configuration of @ref NEWeightsReshapeKernel
      *
      * @param[in] input  The input tensor to convert. Weights are 4D tensor with dimensions [kernel_x, kernel_y, IFM, OFM] if shared,
-     *                   and 5D tensor with dimensions [kernel_x, kernel_y, IFM, OFM,  num_patches] if unshared. Data types supported: QASYMM8/F16/F32
+     *                   and 5D tensor with dimensions [kernel_x, kernel_y, IFM, OFM,  num_patches] if unshared. Data types supported: QASYMM8/QSYMM8_PER_CHANNEL/F16/F32
      * @param[in] biases The shared biases tensor to append.  Bias is 1D tensor with dimensions [OFM] if shared and 2D tensor with
      *                   dimensions [OFM, num_patches] if unshared. Data types supported: Same as @p input
      *                   @warning Appending biases to weights reshaped matrix is not supported for quantized asymmetric types.