COMPMID-448: Implement CL Quantization/Dequantization Layer.

Change-Id: Id002e23a2ac48af3d245416dc6411d9a04a1e513
Reviewed-on: http://mpd-gerrit.cambridge.arm.com/81827
Reviewed-by: Gian Marco Iodice <gianmarco.iodice@arm.com>
Reviewed-by: Georgios Pinitas <georgios.pinitas@arm.com>
Tested-by: Kaizen <jeremy.johnson+kaizengerrit@arm.com>

1 files changed, 68 insertions, 0 deletions

diff --git a/arm_compute/runtime/CL/functions/CLDequantizationLayer.h b/arm_compute/runtime/CL/functions/CLDequantizationLayer.h
new file mode 100644
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+++ b/arm_compute/runtime/CL/functions/CLDequantizationLayer.h
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+/*
+ * 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_CLDEQUANTIZATIONLAYER_H__
+#define __ARM_COMPUTE_CLDEQUANTIZATIONLAYER_H__
+
+#include "arm_compute/runtime/IFunction.h"
+
+#include "arm_compute/core/CL/kernels/CLDequantizationLayerKernel.h"
+#include "arm_compute/runtime/Tensor.h"
+
+#include "arm_compute/core/Types.h"
+
+namespace arm_compute
+{
+class ICLTensor;
+
+/** Basic function to simulate a dequantization layer. This function calls the following CL kernels:
+ *
+ * -# @ref CLDequantizationLayerKernel
+ *
+ */
+class CLDequantizationLayer : public IFunction
+{
+public:
+    /** Default constructor */
+    CLDequantizationLayer();
+    /** Prevent instances of this class from being copied (As this class contains pointers) */
+    CLDequantizationLayer(const CLDequantizationLayer &) = delete;
+    /** Prevent instances of this class from being copied (As this class contains pointers) */
+    CLDequantizationLayer &operator=(const CLDequantizationLayer &) = delete;
+    /** Set the input and output tensors.
+     *
+     * @param[in]  input   Source tensor with at least 3 dimensions. The dimensions over the third will be interpreted as batches. Data types supported: U8.
+     * @param[out] output  Destination tensor with the same dimensions of input. Data type supported: F32.
+     * @param[in]  min_max Pointer to the tensor with shape [2, batches] which stores the minimum and maximum value for each 3D input tensor.
+     *                     The dimensions over the second must match the batched dimensions of the input tensor. Data type supported: F32.
+     */
+    void configure(const ICLTensor *input, ICLTensor *output, const ICLTensor *min_max);
+
+    // Inherited methods overridden:
+    void run() override;
+
+private:
+    CLDequantizationLayerKernel _dequantize_kernel;
+};
+}
+#endif /* __ARM_COMPUTE_CLDEQUANTIZATIONLAYER_H__ */