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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_CLPOOLINGLAYER_H
25 #define ARM_COMPUTE_CLPOOLINGLAYER_H
26 
27 #include "arm_compute/runtime/CL/ICLSimpleFunction.h"
28 
29 #include "arm_compute/core/Error.h"
30 #include "arm_compute/core/Types.h"
31 
32 namespace arm_compute
33 {
34 class CLCompileContext;
35 class ICLTensor;
36 class ITensorInfo;
37 
38 /** Basic function to simulate a pooling layer with the specified pooling operation. This function calls the following OpenCL kernels:
39  *
40  * -# @ref CLFillBorderKernel (executed if padding size is different from zero)
41  * -# @ref CLPoolingLayerKernel
42  */
43 class CLPoolingLayer : public ICLSimpleFunction
44 {
45 public:
46     /** Set the input and output tensors.
47      *
48      * @param[in,out] input     Source tensor. (Written to only when padding != 0) Data types supported: QASYMM8/QASYMM8_SIGNED/F16/F32.
49      * @param[out]    output    Destination tensor. Data types supported: Same as @p input.
50      * @param[in]     pool_info Contains pooling operation information described in @ref PoolingLayerInfo.
51      * @param[out]    indices   (optional) The indices of the maximal values. Data type supported: U32.
52      */
53     void configure(ICLTensor *input, ICLTensor *output, const PoolingLayerInfo &pool_info, ICLTensor *indices = nullptr);
54     /** Set the input and output tensors.
55      *
56      * @param[in]     compile_context The compile context to be used.
57      * @param[in,out] input           Source tensor. (Written to only when padding != 0) Data types supported: QASYMM8/QASYMM8_SIGNED/F16/F32.
58      * @param[out]    output          Destination tensor. Data types supported: Same as @p input.
59      * @param[in]     pool_info       Contains pooling operation information described in @ref PoolingLayerInfo.
60      * @param[out]    indices         (optional) The indices of the maximal values. Data type supported: U32.
61      */
62     void configure(const CLCompileContext &compile_context, ICLTensor *input, ICLTensor *output, const PoolingLayerInfo &pool_info, ICLTensor *indices = nullptr);
63     /** Static function to check if given info will lead to a valid configuration of @ref CLPoolingLayer
64      *
65      * @param[in] input     Source tensor info. Data types supported: QASYMM8/QASYMM8_SIGNED/F16/F32.
66      * @param[in] output    Destination tensor info. Data types supported: Same as @p input.
67      * @param[in] pool_info Contains pooling operation information described in @ref PoolingLayerInfo.
68      * @param[in] indices   (optional) The indices of the maximal values. Data type supported: U32.
69      *
70      * @return a status
71      */
72     static Status validate(const ITensorInfo *input, const ITensorInfo *output, const PoolingLayerInfo &pool_info, const ITensorInfo *indices = nullptr);
73 };
74 } // namespace arm_compute
75 #endif /* ARM_COMPUTE_CLPOOLINGLAYER_H */
76