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 /*
  * Copyright (c) 2025 Advanced Micro Devices, Inc. All rights reserved.
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
  * in the Software without restriction, including without limitation the rights
  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  * copies of the Software, and to permit persons to whom the Software is
  * furnished to do so, subject to the following conditions:
  *
  * The above copyright notice and this permission notice shall be included in
  * all copies or substantial portions of the Software.
  *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  * THE SOFTWARE.
  */
  
 #pragma once
  
 #include <hip/hip_runtime.h>
  
 #include "operator_types.h"
  
 namespace Kernels::Device {
 template <eAxis FlipType, typename SrcWrapper, typename DstWrapper>
 __global__ void flip(SrcWrapper input, DstWrapper output) {
     const int x = blockDim.x * blockIdx.x + threadIdx.x;
     const int y = blockDim.y * blockIdx.y + threadIdx.y;
     const int b = blockIdx.z;
  
     if (x >= output.width() || y >= output.height()) return;
  
     int srcX = x;
     int srcY = y;
     if constexpr (FlipType == eAxis::Y || FlipType == eAxis::BOTH) {
         // Flip along y-axis (horizontally)
         srcX = output.width() - x - 1;
     }
  
     if constexpr (FlipType == eAxis::X || FlipType == eAxis::BOTH) {
         // Flip along x-axis (vertically)
         srcY = output.height() - y - 1;
     }
  
     output.at(b, y, x, 0) = input.at(b, srcY, srcX, 0);
 }
 }  // namespace Kernels::Device