1 /*
2 * Copyright (c) 2018-2021 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 "src/cpu/kernels/CpuFillKernel.h"
25
26 #include "arm_compute/core/Helpers.h"
27 #include "arm_compute/core/ITensor.h"
28 #include "arm_compute/core/Utils.h"
29 #include "arm_compute/core/Validate.h"
30 #include "arm_compute/core/Window.h"
31 #include "src/core/helpers/AutoConfiguration.h"
32 #include "src/core/helpers/WindowHelpers.h"
33
34 namespace arm_compute
35 {
36 namespace cpu
37 {
38 namespace kernels
39 {
configure(const ITensorInfo * tensor,const PixelValue & constant_value)40 void CpuFillKernel::configure(const ITensorInfo *tensor, const PixelValue &constant_value)
41 {
42 ARM_COMPUTE_ERROR_ON_NULLPTR(tensor);
43 _constant_value = constant_value;
44
45 // Configure kernel window
46 Window win = calculate_max_window(*tensor, Steps());
47 ICpuKernel::configure(win);
48 }
49
run_op(ITensorPack & tensors,const Window & window,const ThreadInfo & info)50 void CpuFillKernel::run_op(ITensorPack &tensors, const Window &window, const ThreadInfo &info)
51 {
52 ARM_COMPUTE_UNUSED(info);
53 ARM_COMPUTE_ERROR_ON_UNCONFIGURED_KERNEL(this);
54 ARM_COMPUTE_ERROR_ON_INVALID_SUBWINDOW(ICpuKernel::window(), window);
55
56 auto inout = tensors.get_tensor(TensorType::ACL_SRC_DST);
57
58 // Collapse all the batches on the third dimension
59 bool has_collapsed = true;
60 Window collapsed = window.collapse_if_possible(window, Window::DimZ, &has_collapsed);
61 ARM_COMPUTE_ERROR_ON(!has_collapsed);
62
63 uint8_t *const start_valid_region = inout->ptr_to_element(inout->info()->valid_region().anchor);
64 const auto window_width = static_cast<int>(collapsed.x().end()) - static_cast<int>(collapsed.x().start());
65 const size_t element_size = inout->info()->element_size();
66
67 // Unroll X dimension
68 collapsed.set(Window::DimX, Window::Dimension(0, 1, 1));
69
70 Iterator tensor_it(inout, collapsed);
71 execute_window_loop(collapsed, [&](const Coordinates &)
72 {
73 uint8_t *base_addr = start_valid_region + tensor_it.offset();
74 // Set memory
75 for(int i = 0; i < window_width; ++i)
76 {
77 std::memcpy(base_addr + i * element_size, &_constant_value.value, element_size);
78 }
79
80 },
81 tensor_it);
82 }
83
name() const84 const char *CpuFillKernel::name() const
85 {
86 return "CpuFillKernel";
87 }
88 } // namespace kernels
89 } // namespace cpu
90 } // namespace arm_compute
91