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 #include "arm_compute/runtime/CL/functions/CLMinMaxLocation.h"
25 #include "arm_compute/core/CL/CLHelpers.h"
26 #include "src/core/CL/kernels/CLMinMaxLocationKernel.h"
27 #include "support/MemorySupport.h"
28
29 namespace arm_compute
30 {
CLMinMaxLocation()31 CLMinMaxLocation::CLMinMaxLocation()
32 : _min_max_kernel(support::cpp14::make_unique<CLMinMaxKernel>()),
33 _min_max_loc_kernel(support::cpp14::make_unique<CLMinMaxLocationKernel>()),
34 _min_max_vals(),
35 _min_max_count_vals(),
36 _min(nullptr),
37 _max(nullptr),
38 _min_count(nullptr),
39 _max_count(nullptr),
40 _min_loc(nullptr),
41 _max_loc(nullptr)
42 {
43 }
44
45 CLMinMaxLocation::~CLMinMaxLocation() = default;
46
configure(const ICLImage * input,void * min,void * max,CLCoordinates2DArray * min_loc,CLCoordinates2DArray * max_loc,uint32_t * min_count,uint32_t * max_count)47 void CLMinMaxLocation::configure(const ICLImage *input, void *min, void *max, CLCoordinates2DArray *min_loc, CLCoordinates2DArray *max_loc, uint32_t *min_count, uint32_t *max_count)
48 {
49 configure(CLKernelLibrary::get().get_compile_context(), input, min, max, min_loc, max_loc, min_count, max_count);
50 }
51
configure(const CLCompileContext & compile_context,const ICLImage * input,void * min,void * max,CLCoordinates2DArray * min_loc,CLCoordinates2DArray * max_loc,uint32_t * min_count,uint32_t * max_count)52 void CLMinMaxLocation::configure(const CLCompileContext &compile_context, const ICLImage *input, void *min, void *max, CLCoordinates2DArray *min_loc, CLCoordinates2DArray *max_loc,
53 uint32_t *min_count,
54 uint32_t *max_count)
55 {
56 ARM_COMPUTE_ERROR_ON(nullptr == min);
57 ARM_COMPUTE_ERROR_ON(nullptr == max);
58
59 _min_max_vals = cl::Buffer(CLScheduler::get().context(), CL_MEM_ALLOC_HOST_PTR | CL_MEM_READ_WRITE, 2 * sizeof(int32_t));
60 _min_max_count_vals = cl::Buffer(CLScheduler::get().context(), CL_MEM_ALLOC_HOST_PTR | CL_MEM_READ_WRITE, 2 * sizeof(uint32_t));
61 _min = min;
62 _max = max;
63 _min_count = min_count;
64 _max_count = max_count;
65 _min_loc = min_loc;
66 _max_loc = max_loc;
67
68 _min_max_kernel->configure(compile_context, input, &_min_max_vals);
69 _min_max_loc_kernel->configure(compile_context, input, &_min_max_vals, &_min_max_count_vals, _min_loc, _max_loc);
70 }
71
run()72 void CLMinMaxLocation::run()
73 {
74 cl::CommandQueue q = CLScheduler::get().queue();
75
76 CLScheduler::get().enqueue(*_min_max_kernel, false);
77 CLScheduler::get().enqueue(*_min_max_loc_kernel, false);
78
79 // Update min and max
80 q.enqueueReadBuffer(_min_max_vals, CL_FALSE, 0 * sizeof(int32_t), sizeof(int32_t), static_cast<int32_t *>(_min));
81 q.enqueueReadBuffer(_min_max_vals, CL_FALSE, 1 * sizeof(int32_t), sizeof(int32_t), static_cast<int32_t *>(_max));
82
83 // Update min and max count
84 if(_min_count != nullptr)
85 {
86 q.enqueueReadBuffer(_min_max_count_vals, CL_FALSE, 0 * sizeof(uint32_t), sizeof(uint32_t), _min_count);
87 }
88 if(_max_count != nullptr)
89 {
90 q.enqueueReadBuffer(_min_max_count_vals, CL_FALSE, 1 * sizeof(uint32_t), sizeof(uint32_t), _max_count);
91 }
92
93 // Update min/max point arrays (Makes the kernel blocking)
94 if(_min_loc != nullptr)
95 {
96 unsigned int min_count = 0;
97 q.enqueueReadBuffer(_min_max_count_vals, CL_TRUE, 0 * sizeof(uint32_t), sizeof(uint32_t), &min_count);
98 size_t min_corner_size = std::min(static_cast<size_t>(min_count), _min_loc->max_num_values());
99 _min_loc->resize(min_corner_size);
100 }
101 if(_max_loc != nullptr)
102 {
103 unsigned int max_count = 0;
104 q.enqueueReadBuffer(_min_max_count_vals, CL_TRUE, 1 * sizeof(uint32_t), sizeof(uint32_t), &max_count);
105 size_t max_corner_size = std::min(static_cast<size_t>(max_count), _max_loc->max_num_values());
106 _max_loc->resize(max_corner_size);
107 }
108 }
109 } // namespace arm_compute
110