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// Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
#pragma once
#include "cpu/vision.h"
#ifdef WITH_CUDA
#include "cuda/vision.h"
#endif
// Interface for Python
at::Tensor ROIAlign_forward(const at::Tensor& input,
const at::Tensor& rois,
const float spatial_scale,
const int pooled_height,
const int pooled_width,
const int sampling_ratio) {
if (input.device().is_cuda()) {
#ifdef WITH_CUDA
return ROIAlign_forward_cuda(input, rois, spatial_scale, pooled_height, pooled_width, sampling_ratio);
#else
AT_ERROR("Not compiled with GPU support");
#endif
}
return ROIAlign_forward_cpu(input, rois, spatial_scale, pooled_height, pooled_width, sampling_ratio);
}
at::Tensor ROIAlign_backward(const at::Tensor& grad,
const at::Tensor& rois,
const float spatial_scale,
const int pooled_height,
const int pooled_width,
const int batch_size,
const int channels,
const int height,
const int width,
const int sampling_ratio) {
if (grad.device().is_cuda()) {
#ifdef WITH_CUDA
return ROIAlign_backward_cuda(grad, rois, spatial_scale, pooled_height, pooled_width, batch_size, channels, height, width, sampling_ratio);
#else
AT_ERROR("Not compiled with GPU support");
#endif
}
AT_ERROR("Not implemented on the CPU");
}