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/CLLaplacianReconstruct.h"
25
26 #include "arm_compute/core/CL/CLKernelLibrary.h"
27 #include "arm_compute/core/Error.h"
28 #include "arm_compute/core/IPyramid.h"
29 #include "arm_compute/core/ITensor.h"
30 #include "arm_compute/core/TensorInfo.h"
31 #include "arm_compute/core/Validate.h"
32 #include "src/core/CL/kernels/CLFillBorderKernel.h"
33
34 #include <cstddef>
35
36 using namespace arm_compute;
37
CLLaplacianReconstruct()38 CLLaplacianReconstruct::CLLaplacianReconstruct() // NOLINT
39 : _tmp_pyr(),
40 _addf(),
41 _scalef(),
42 _depthf()
43 {
44 }
45
configure(const CLPyramid * pyramid,ICLTensor * input,ICLTensor * output,BorderMode border_mode,uint8_t constant_border_value)46 void CLLaplacianReconstruct::configure(const CLPyramid *pyramid, ICLTensor *input, ICLTensor *output, BorderMode border_mode, uint8_t constant_border_value)
47 {
48 configure(CLKernelLibrary::get().get_compile_context(), pyramid, input, output, border_mode, constant_border_value);
49 }
50
configure(const CLCompileContext & compile_context,const CLPyramid * pyramid,ICLTensor * input,ICLTensor * output,BorderMode border_mode,uint8_t constant_border_value)51 void CLLaplacianReconstruct::configure(const CLCompileContext &compile_context, const CLPyramid *pyramid, ICLTensor *input, ICLTensor *output, BorderMode border_mode, uint8_t constant_border_value)
52 {
53 ARM_COMPUTE_ERROR_ON(nullptr == pyramid);
54 ARM_COMPUTE_ERROR_ON(input == output);
55 ARM_COMPUTE_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(input, 1, DataType::S16);
56 ARM_COMPUTE_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(output, 1, DataType::U8);
57 ARM_COMPUTE_ERROR_ON(input->info()->num_dimensions() != pyramid->get_pyramid_level(0)->info()->num_dimensions());
58 ARM_COMPUTE_ERROR_ON(output->info()->num_dimensions() != pyramid->get_pyramid_level(0)->info()->num_dimensions());
59 ARM_COMPUTE_ERROR_ON(output->info()->dimension(0) != pyramid->get_pyramid_level(0)->info()->dimension(0));
60 ARM_COMPUTE_ERROR_ON(output->info()->dimension(1) != pyramid->get_pyramid_level(0)->info()->dimension(1));
61 ARM_COMPUTE_ERROR_ON(input->info()->dimension(0) != pyramid->get_pyramid_level(pyramid->info()->num_levels() - 1)->info()->dimension(0));
62 ARM_COMPUTE_ERROR_ON(input->info()->dimension(1) != pyramid->get_pyramid_level(pyramid->info()->num_levels() - 1)->info()->dimension(1));
63
64 const size_t num_levels = pyramid->info()->num_levels();
65
66 // Create and initialize the tmp pyramid: I(n-2) = upsample( input + Laplace(n-1) )
67 PyramidInfo pyramid_info;
68 pyramid_info.init(num_levels, 0.5f, output->info()->tensor_shape(), arm_compute::Format::S16);
69 _tmp_pyr.init(pyramid_info);
70
71 // Allocate add and scale functions. Level 0 does not need to be scaled.
72 _addf.resize(num_levels);
73 _scalef.resize(num_levels - 1);
74
75 const size_t last_level = num_levels - 1;
76
77 _addf[last_level].configure(compile_context, input, pyramid->get_pyramid_level(last_level), _tmp_pyr.get_pyramid_level(last_level), ConvertPolicy::SATURATE);
78
79 // Scale levels n-1 to 1, and add levels n-2 to 0
80 for(size_t l = 0; l < last_level; ++l)
81 {
82 _scalef[l].configure(compile_context, _tmp_pyr.get_pyramid_level(l + 1), _tmp_pyr.get_pyramid_level(l), ScaleKernelInfo{ arm_compute::InterpolationPolicy::NEAREST_NEIGHBOR, border_mode, constant_border_value });
83 _addf[l].configure(compile_context, _tmp_pyr.get_pyramid_level(l), pyramid->get_pyramid_level(l), _tmp_pyr.get_pyramid_level(l), ConvertPolicy::SATURATE);
84 }
85
86 // Convert level 0 from S16 to U8
87 _depthf.configure(compile_context, _tmp_pyr.get_pyramid_level(0), output, ConvertPolicy::SATURATE, 0);
88
89 _tmp_pyr.allocate();
90 }
91
run()92 void CLLaplacianReconstruct::run()
93 {
94 ARM_COMPUTE_ERROR_ON_MSG(_addf.empty(), "Unconfigured function");
95
96 const size_t last_level = _tmp_pyr.info()->num_levels() - 1;
97
98 _addf[last_level].run();
99
100 // Run l = [last_level - 1, 0]
101 for(size_t l = last_level; l-- > 0;)
102 {
103 _scalef[l].run();
104 _addf[l].run();
105 }
106
107 _depthf.run();
108 }
109