/home/docs/checkouts/readthedocs.org/user_builds/advanced-micro-devices-roccv/checkouts/latest/include/kernels/host/flip_host.hpp Source File

/home/docs/checkouts/readthedocs.org/user_builds/advanced-micro-devices-roccv/checkouts/latest/include/kernels/host/flip_host.hpp Source File#

3 min read time

Applies to Linux

rocCV: /home/docs/checkouts/readthedocs.org/user_builds/advanced-micro-devices-roccv/checkouts/latest/include/kernels/host/flip_host.hpp Source File
flip_host.hpp
Go to the documentation of this file.
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 "operator_types.h"
25 
26 namespace Kernels::Host {
27 template <eAxis FlipType, typename SrcWrapper, typename DstWrapper>
28 void flip(SrcWrapper input, DstWrapper output) {
29  for (int b = 0; b < output.batches(); b++) {
30  for (int y = 0; y < output.height(); y++) {
31  for (int x = 0; x < output.width(); x++) {
32  int srcX = x;
33  int srcY = y;
34  if constexpr (FlipType == eAxis::Y || FlipType == eAxis::BOTH) {
35  // Flip along y-axis (horizontally)
36  srcX = output.width() - x - 1;
37  }
38 
39  if constexpr (FlipType == eAxis::X || FlipType == eAxis::BOTH) {
40  // Flip along x-axis (vertically)
41  srcY = output.height() - y - 1;
42  }
43 
44  output.at(b, y, x, 0) = input.at(b, srcY, srcX, 0);
45  }
46  }
47  }
48 }
49 } // namespace Kernels::Host
Kernels::Host
Definition: bilateral_filter_host.hpp:34
Kernels::Host::flip
void flip(SrcWrapper input, DstWrapper output)
Definition: flip_host.hpp:28
operator_types.h
Y
@ Y
Definition: operator_types.h:63
X
@ X
Definition: operator_types.h:62
BOTH
@ BOTH
Definition: operator_types.h:61