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1 /*
2  * Copyright (c) 2016-2020 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_CLHISTOGRAM_H
25 #define ARM_COMPUTE_CLHISTOGRAM_H
26 
27 #include "arm_compute/runtime/IFunction.h"
28 #include "src/core/CL/kernels/CLHistogramKernel.h"
29 
30 namespace arm_compute
31 {
32 class ICLDistribution1D;
33 class ICLTensor;
34 
35 /** Basic function to execute histogram. This function calls the following OpenCL kernels:
36  *
37  *  -# @ref CLHistogramKernel
38  *  -# @ref CLHistogramBorderKernel
39  *
40  * @deprecated This function is deprecated and is intended to be removed in 21.05 release
41  *
42  */
43 class CLHistogram : public IFunction
44 {
45 public:
46     /*
47      * @ Default constructor
48      */
49     CLHistogram();
50     /** Prevent instances of this class from being copied (As this class contains pointers) */
51     CLHistogram(const CLHistogram &) = delete;
52     /** Prevent instances of this class from being copied (As this class contains pointers) */
53     const CLHistogram &operator=(const CLHistogram &) = delete;
54     /** Initialize the function
55      *
56      * @param[in]  input  Source image. Data types supported: U8
57      * @param[out] output Output distribution.
58      */
59     void configure(const ICLImage *input, ICLDistribution1D *output);
60     /** Initialize the function
61      *
62      * @param[in]  compile_context The compile context to be used.
63      * @param[in]  input           Source image. Data types supported: U8
64      * @param[out] output          Output distribution.
65      */
66     void configure(const CLCompileContext &compile_context, const ICLImage *input, ICLDistribution1D *output);
67 
68     // Inherited methods overridden:
69     void run() override;
70 
71 private:
72     CLHistogramKernel       _kernel;        /**< kernel to run */
73     CLHistogramBorderKernel _kernel_border; /**< Border kernel to run */
74 };
75 }
76 #endif /*ARM_COMPUTE_CLHISTOGRAM_H */
77