Rename Quantization/Dequantization kernels/operators to imperative mood

Renames the following kernels/functions
 - [Cl|Cpu]DequantizationKernel -> [Cl|Cpu]DequantizeKernel
 - [Cl|Cpu]Dequantization -> [Cl|Cpu]CpuDequantize
 - [Cl|Cpu]QuantizationKernel -> [Cl|Cpu]QuantizeKernel
 - [Cl|Cpu]Quantization -> [Cl|Cpu]Quantize

Signed-off-by: Georgios Pinitas <georgios.pinitas@arm.com>
Change-Id: Ic3c5eb3b7fe28f807294d159830eef99c2dd6219
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/5566
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Michele Di Giorgio <michele.digiorgio@arm.com>
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>

1 files changed, 90 insertions, 0 deletions

diff --git a/src/core/cpu/kernels/CpuQuantizeKernel.h b/src/core/cpu/kernels/CpuQuantizeKernel.h
new file mode 100644
index 0000000000..d3422d3fbd
--- /dev/null
+++ b/src/core/cpu/kernels/CpuQuantizeKernel.h
@@ -0,0 +1,90 @@
+/*
+ * Copyright (c) 2017-2021 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_CPU_QUANTIZE_KERNEL_H
+#define ARM_COMPUTE_CPU_QUANTIZE_KERNEL_H
+
+#include "src/core/common/Macros.h"
+#include "src/core/cpu/ICpuKernel.h"
+
+namespace arm_compute
+{
+namespace cpu
+{
+namespace kernels
+{
+/** Interface for the quantization layer kernel.
+ *
+ * @note The implementation supports only 3D input tensors
+ */
+class CpuQuantizeKernel : public ICpuKernel
+{
+public:
+    /** Default constructor */
+    CpuQuantizeKernel() = default;
+    ARM_COMPUTE_DISALLOW_COPY_ALLOW_MOVE(CpuQuantizeKernel);
+    /** Set the input, output.
+     *
+     * @param[in]  src Source tensor info. The dimensions over the third will be interpreted as batches. Data types supported: QASYMM8/QASYMM8_SIGNED/F32/F16.
+     * @param[out] dst Destination tensor info with the same dimensions of input. Data types supported: QASYMM8/QASYMM8_SIGNED/QASYMM16.
+     *
+     * @note Output auto initialization is not supported by this kernel
+     */
+    void configure(const ITensorInfo *src, ITensorInfo *dst);
+    /** Static function to check if given info will lead to a valid configuration
+     *
+     * Similar to @ref CpuQuantizeKernel::configure()
+     *
+     * @return a status
+     */
+    static Status validate(const ITensorInfo *src, const ITensorInfo *dst);
+
+    // Inherited methods overridden:
+    void run_op(ITensorPack &tensors, const Window &window, const ThreadInfo &info) override;
+    const char *name() const override;
+
+private:
+    /** Common signature for all the specialised @ref CpuQuantizeKernel functions
+     *
+     * @param[in] window Region on which to execute the kernel.
+     */
+    using QuantizeFunctionExecutorPtr = void (CpuQuantizeKernel::*)(const ITensor *src, ITensor *dst, const Window &window);
+    /** Function to apply QASYMM8 or QASYMM8_SIGNED quantization on a tensor.
+     *
+     * @param[in] window Region on which to execute the kernel.
+     */
+    template <typename TIn, typename TOut>
+    void run_quantize_qasymm8(const ITensor *src, ITensor *dst, const Window &window);
+    /** Function to apply QASYMM16 quantization on a tensor.
+     *
+     * @param[in] window Region on which to execute the kernel.
+     */
+    template <typename T>
+    void run_quantize_qasymm16(const ITensor *src, ITensor *dst, const Window &window);
+
+    QuantizeFunctionExecutorPtr _func{ nullptr };
+};
+} // namespace kernels
+} // namespace cpu
+} // namespace arm_compute
+#endif /* ARM_COMPUTE_CPU_QUANTIZE_KERNEL_H */