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1 /*
2  * Copyright (c) 2017-2020 Arm Limited.
3  *
4  * SPDX-License-Identifier: MIT
5  *
6  * Permission is hereby granted, free of charge, to any person obtaining a copy
7  * of this software and associated documentation files (the "Software"), to
8  * deal in the Software without restriction, including without limitation the
9  * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
10  * sell copies of the Software, and to permit persons to whom the Software is
11  * furnished to do so, subject to the following conditions:
12  *
13  * The above copyright notice and this permission notice shall be included in all
14  * copies or substantial portions of the Software.
15  *
16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
22  * SOFTWARE.
23  */
24 #ifndef ARM_COMPUTE_CLQUANTIZATIONLAYER_H
25 #define ARM_COMPUTE_CLQUANTIZATIONLAYER_H
26 
27 #include "arm_compute/core/Error.h"
28 #include "arm_compute/runtime/CL/ICLSimpleFunction.h"
29 
30 namespace arm_compute
31 {
32 class CLCompileContext;
33 class ICLTensor;
34 class ITensorInfo;
35 
36 /** Basic function to simulate a quantization layer. This function calls the following CL kernels:
37  *
38  * @note The implementation supports only 3D input tensors.
39  *
40  * -# @ref CLQuantizationLayerKernel
41  *
42  */
43 class CLQuantizationLayer : public ICLSimpleFunction
44 {
45 public:
46     /** Set the input and output tensors.
47      *
48      * @param[in]  input  Source tensor. The dimensions over the third will be interpreted as batches. Data types supported: QASYMM8/QASYMM8_SIGNED/F16/32.
49      * @param[out] output Destination tensor with the same dimensions of input. Data types supported: QASYMM8/QASYMM8_SIGNED/QASYMM16.
50      *
51      * @note Output auto initialization is not supported by this function
52      */
53     void configure(const ICLTensor *input, ICLTensor *output);
54     /** Set the input and output tensors.
55      *
56      * @param[in]  compile_context The compile context to be used.
57      * @param[in]  input           Source tensor. The dimensions over the third will be interpreted as batches. Data types supported: QASYMM8/QASYMM8_SIGNED/F16/32.
58      * @param[out] output          Destination tensor with the same dimensions of input. Data types supported: QASYMM8/QASYMM8_SIGNED/QASYMM16.
59      *
60      * @note Output auto initialization is not supported by this function
61      */
62     void configure(const CLCompileContext &compile_context, const ICLTensor *input, ICLTensor *output);
63     /** Static function to check if given info will lead to a valid configuration of @ref CLQuantizationLayer
64      *
65      * @param[in] input  Input tensor info. The dimensions over the third will be interpreted as batches. Data types supported: QASYMM8/QASYMM8_SIGNED/F16/32.
66      * @param[in] output Output tensor info. Data types supported: QASYMM8/QASYMM8_SIGNED/QASYMM16.
67      *
68      * @return a status
69      */
70     static Status validate(const ITensorInfo *input, const ITensorInfo *output);
71 };
72 } //namespace arm_compute
73 #endif /* ARM_COMPUTE_CLQUANTIZATIONLAYER_H */
74