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resize_host.hpp
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1 /*
2  * Copyright (c) 2025 Advanced Micro Devices, Inc. All rights reserved.
3  * Permission is hereby granted, free of charge, to any person obtaining a copy
4  * of this software and associated documentation files (the "Software"), to deal
5  * in the Software without restriction, including without limitation the rights
6  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
7  * copies of the Software, and to permit persons to whom the Software is
8  * furnished to do so, subject to the following conditions:
9  *
10  * The above copyright notice and this permission notice shall be included in
11  * all copies or substantial portions of the Software.
12  *
13  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
14  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
15  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
16  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
17  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
18  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
19  * THE SOFTWARE.
20  */
21 
22 #pragma once
23 
24 #include <hip/hip_runtime.h>
25 
26 namespace Kernels::Host {
27 template <typename SrcWrapper, typename DstWrapper>
28 void resize(SrcWrapper input, DstWrapper output, float scaleX, float scaleY) {
29 #pragma omp parallel for
30  for (int batch = 0; batch < output.batches(); batch++) {
31  for (int y = 0; y < output.height(); y++) {
32  for (int x = 0; x < output.width(); x++) {
33  float srcX = fmaf(x + 0.5f, scaleX, -0.5f);
34  float srcY = fmaf(y + 0.5f, scaleY, -0.5f);
35  output.at(batch, y, x, 0) = input.at(batch, srcY, srcX, 0);
36  }
37  }
38  }
39 }
40 } // namespace Kernels::Host
Kernels::Host
Definition: bilateral_filter_host.hpp:34
Kernels::Host::resize
void resize(SrcWrapper input, DstWrapper output, float scaleX, float scaleY)
Definition: resize_host.hpp:28